--- /dev/null
+Freescale i.MX PWM controller
+
+Required properties:
+- compatible: should be "fsl,<soc>-pwm"
+- reg: physical base address and length of the controller's registers
+- #pwm-cells: should be 2. The first cell specifies the per-chip index
+ of the PWM to use and the second cell is the period in nanoseconds.
+- interrupts: The interrupt for the pwm controller
+
+Example:
+
+pwm1: pwm@53fb4000 {
+ #pwm-cells = <2>;
+ compatible = "fsl,imx53-pwm", "fsl,imx27-pwm";
+ reg = <0x53fb4000 0x4000>;
+ interrupts = <61>;
+};
- compatible: should be "fsl,imx23-pwm"
- reg: physical base address and length of the controller's registers
- #pwm-cells: should be 2. The first cell specifies the per-chip index
- of the PWM to use and the second cell is the duty cycle in nanoseconds.
+ of the PWM to use and the second cell is the period in nanoseconds.
- fsl,pwm-number: the number of PWM devices
Example:
- reg: physical base address and length of the controller's registers
- #pwm-cells: On Tegra the number of cells used to specify a PWM is 2. The
first cell specifies the per-chip index of the PWM to use and the second
- cell is the duty cycle in nanoseconds.
+ cell is the period in nanoseconds.
Example:
PINCTRL
devm_pinctrl_get()
devm_pinctrl_put()
+
+PWM
+ devm_pwm_get()
+ devm_pwm_put()
protocol.
The purpose of this document is to provide information on some of the
-upcall interfaces that are used in order to provide the NFS client with
-some of the information that it requires in order to fully comply with
-the NFS spec.
+special features of the NFS client that can be configured by system
+administrators.
+
+
+The nfs4_unique_id parameter
+============================
+
+NFSv4 requires clients to identify themselves to servers with a unique
+string. File open and lock state shared between one client and one server
+is associated with this identity. To support robust NFSv4 state recovery
+and transparent state migration, this identity string must not change
+across client reboots.
+
+Without any other intervention, the Linux client uses a string that contains
+the local system's node name. System administrators, however, often do not
+take care to ensure that node names are fully qualified and do not change
+over the lifetime of a client system. Node names can have other
+administrative requirements that require particular behavior that does not
+work well as part of an nfs_client_id4 string.
+
+The nfs.nfs4_unique_id boot parameter specifies a unique string that can be
+used instead of a system's node name when an NFS client identifies itself to
+a server. Thus, if the system's node name is not unique, or it changes, its
+nfs.nfs4_unique_id stays the same, preventing collision with other clients
+or loss of state during NFS reboot recovery or transparent state migration.
+
+The nfs.nfs4_unique_id string is typically a UUID, though it can contain
+anything that is believed to be unique across all NFS clients. An
+nfs4_unique_id string should be chosen when a client system is installed,
+just as a system's root file system gets a fresh UUID in its label at
+install time.
+
+The string should remain fixed for the lifetime of the client. It can be
+changed safely if care is taken that the client shuts down cleanly and all
+outstanding NFSv4 state has expired, to prevent loss of NFSv4 state.
+
+This string can be stored in an NFS client's grub.conf, or it can be provided
+via a net boot facility such as PXE. It may also be specified as an nfs.ko
+module parameter. Specifying a uniquifier string is not support for NFS
+clients running in containers.
+
The DNS resolver
================
will be autodetected by the client, and it will fall
back to using the idmapper.
To turn off this behaviour, set the value to '0'.
+ nfs.nfs4_unique_id=
+ [NFS4] Specify an additional fixed unique ident-
+ ification string that NFSv4 clients can insert into
+ their nfs_client_id4 string. This is typically a
+ UUID that is generated at system install time.
nfs.send_implementation_id =
[NFSv4.1] Send client implementation identification
Description
-----------
LP5523 can drive up to 9 channels. Leds can be controlled directly via
-the led class control interface. Channels have generic names:
-lp5523:channelx where x is 0...8
+the led class control interface.
+The name of each channel is configurable in the platform data - name and label.
+There are three options to make the channel name.
+
+a) Define the 'name' in the platform data
+To make specific channel name, then use 'name' platform data.
+/sys/class/leds/R1 (name: 'R1')
+/sys/class/leds/B1 (name: 'B1')
+
+b) Use the 'label' with no 'name' field
+For one device name with channel number, then use 'label'.
+/sys/class/leds/RGB:channelN (label: 'RGB', N: 0 ~ 8)
+
+c) Default
+If both fields are NULL, 'lp5523' is used by default.
+/sys/class/leds/lp5523:channelN (N: 0 ~ 8)
The chip provides 3 engines. Each engine can control channels without
interaction from the main CPU. Details of the micro engine code can be found
static struct lp5523_led_config lp5523_led_config[] = {
{
+ .name = "D1",
.chan_nr = 0,
.led_current = 50,
.max_current = 130,
},
...
- }, {
+ {
.chan_nr = 8,
.led_current = 50,
.max_current = 130,
after usage with pwm_free().
New users should use the pwm_get() function and pass to it the consumer
-device or a consumer name. pwm_put() is used to free the PWM device.
+device or a consumer name. pwm_put() is used to free the PWM device. Managed
+variants of these functions, devm_pwm_get() and devm_pwm_put(), also exist.
After being requested a PWM has to be configured using:
buf += " .queue_data_in = " + fabric_mod_name + "_queue_data_in,\n"
buf += " .queue_status = " + fabric_mod_name + "_queue_status,\n"
buf += " .queue_tm_rsp = " + fabric_mod_name + "_queue_tm_rsp,\n"
- buf += " .get_fabric_sense_len = " + fabric_mod_name + "_get_fabric_sense_len,\n"
- buf += " .set_fabric_sense_len = " + fabric_mod_name + "_set_fabric_sense_len,\n"
buf += " .is_state_remove = " + fabric_mod_name + "_is_state_remove,\n"
buf += " /*\n"
buf += " * Setup function pointers for generic logic in target_core_fabric_configfs.c\n"
buf += "}\n\n"
bufi += "int " + fabric_mod_name + "_queue_tm_rsp(struct se_cmd *);\n"
- if re.search('get_fabric_sense_len\)\(', fo):
- buf += "u16 " + fabric_mod_name + "_get_fabric_sense_len(void)\n"
- buf += "{\n"
- buf += " return 0;\n"
- buf += "}\n\n"
- bufi += "u16 " + fabric_mod_name + "_get_fabric_sense_len(void);\n"
-
- if re.search('set_fabric_sense_len\)\(', fo):
- buf += "u16 " + fabric_mod_name + "_set_fabric_sense_len(struct se_cmd *se_cmd, u32 sense_length)\n"
- buf += "{\n"
- buf += " return 0;\n"
- buf += "}\n\n"
- bufi += "u16 " + fabric_mod_name + "_set_fabric_sense_len(struct se_cmd *, u32);\n"
-
if re.search('is_state_remove\)\(', fo):
buf += "int " + fabric_mod_name + "_is_state_remove(struct se_cmd *se_cmd)\n"
buf += "{\n"
extern struct platform_device jz4740_codec_device;
extern struct platform_device jz4740_adc_device;
extern struct platform_device jz4740_wdt_device;
+extern struct platform_device jz4740_pwm_device;
void jz4740_serial_device_register(void);
#ifndef __ASM_MACH_JZ4740_TIMER
#define __ASM_MACH_JZ4740_TIMER
+#define JZ_REG_TIMER_STOP 0x0C
+#define JZ_REG_TIMER_STOP_SET 0x1C
+#define JZ_REG_TIMER_STOP_CLEAR 0x2C
+#define JZ_REG_TIMER_ENABLE 0x00
+#define JZ_REG_TIMER_ENABLE_SET 0x04
+#define JZ_REG_TIMER_ENABLE_CLEAR 0x08
+#define JZ_REG_TIMER_FLAG 0x10
+#define JZ_REG_TIMER_FLAG_SET 0x14
+#define JZ_REG_TIMER_FLAG_CLEAR 0x18
+#define JZ_REG_TIMER_MASK 0x20
+#define JZ_REG_TIMER_MASK_SET 0x24
+#define JZ_REG_TIMER_MASK_CLEAR 0x28
+
+#define JZ_REG_TIMER_DFR(x) (((x) * 0x10) + 0x30)
+#define JZ_REG_TIMER_DHR(x) (((x) * 0x10) + 0x34)
+#define JZ_REG_TIMER_CNT(x) (((x) * 0x10) + 0x38)
+#define JZ_REG_TIMER_CTRL(x) (((x) * 0x10) + 0x3C)
+
+#define JZ_TIMER_IRQ_HALF(x) BIT((x) + 0x10)
+#define JZ_TIMER_IRQ_FULL(x) BIT(x)
+
+#define JZ_TIMER_CTRL_PWM_ABBRUPT_SHUTDOWN BIT(9)
+#define JZ_TIMER_CTRL_PWM_ACTIVE_LOW BIT(8)
+#define JZ_TIMER_CTRL_PWM_ENABLE BIT(7)
+#define JZ_TIMER_CTRL_PRESCALE_MASK 0x1c
+#define JZ_TIMER_CTRL_PRESCALE_OFFSET 0x3
+#define JZ_TIMER_CTRL_PRESCALE_1 (0 << 3)
+#define JZ_TIMER_CTRL_PRESCALE_4 (1 << 3)
+#define JZ_TIMER_CTRL_PRESCALE_16 (2 << 3)
+#define JZ_TIMER_CTRL_PRESCALE_64 (3 << 3)
+#define JZ_TIMER_CTRL_PRESCALE_256 (4 << 3)
+#define JZ_TIMER_CTRL_PRESCALE_1024 (5 << 3)
+
+#define JZ_TIMER_CTRL_PRESCALER(x) ((x) << JZ_TIMER_CTRL_PRESCALE_OFFSET)
+
+#define JZ_TIMER_CTRL_SRC_EXT BIT(2)
+#define JZ_TIMER_CTRL_SRC_RTC BIT(1)
+#define JZ_TIMER_CTRL_SRC_PCLK BIT(0)
+
+extern void __iomem *jz4740_timer_base;
+void __init jz4740_timer_init(void);
+
void jz4740_timer_enable_watchdog(void);
void jz4740_timer_disable_watchdog(void);
+static inline void jz4740_timer_stop(unsigned int timer)
+{
+ writel(BIT(timer), jz4740_timer_base + JZ_REG_TIMER_STOP_SET);
+}
+
+static inline void jz4740_timer_start(unsigned int timer)
+{
+ writel(BIT(timer), jz4740_timer_base + JZ_REG_TIMER_STOP_CLEAR);
+}
+
+static inline bool jz4740_timer_is_enabled(unsigned int timer)
+{
+ return readb(jz4740_timer_base + JZ_REG_TIMER_ENABLE) & BIT(timer);
+}
+
+static inline void jz4740_timer_enable(unsigned int timer)
+{
+ writeb(BIT(timer), jz4740_timer_base + JZ_REG_TIMER_ENABLE_SET);
+}
+
+static inline void jz4740_timer_disable(unsigned int timer)
+{
+ writeb(BIT(timer), jz4740_timer_base + JZ_REG_TIMER_ENABLE_CLEAR);
+}
+
+static inline void jz4740_timer_set_period(unsigned int timer, uint16_t period)
+{
+ writew(period, jz4740_timer_base + JZ_REG_TIMER_DFR(timer));
+}
+
+static inline void jz4740_timer_set_duty(unsigned int timer, uint16_t duty)
+{
+ writew(duty, jz4740_timer_base + JZ_REG_TIMER_DHR(timer));
+}
+
+static inline void jz4740_timer_set_count(unsigned int timer, uint16_t count)
+{
+ writew(count, jz4740_timer_base + JZ_REG_TIMER_CNT(timer));
+}
+
+static inline uint16_t jz4740_timer_get_count(unsigned int timer)
+{
+ return readw(jz4740_timer_base + JZ_REG_TIMER_CNT(timer));
+}
+
+static inline void jz4740_timer_ack_full(unsigned int timer)
+{
+ writel(JZ_TIMER_IRQ_FULL(timer), jz4740_timer_base + JZ_REG_TIMER_FLAG_CLEAR);
+}
+
+static inline void jz4740_timer_irq_full_enable(unsigned int timer)
+{
+ writel(JZ_TIMER_IRQ_FULL(timer), jz4740_timer_base + JZ_REG_TIMER_FLAG_CLEAR);
+ writel(JZ_TIMER_IRQ_FULL(timer), jz4740_timer_base + JZ_REG_TIMER_MASK_CLEAR);
+}
+
+static inline void jz4740_timer_irq_full_disable(unsigned int timer)
+{
+ writel(JZ_TIMER_IRQ_FULL(timer), jz4740_timer_base + JZ_REG_TIMER_MASK_SET);
+}
+
+static inline void jz4740_timer_set_ctrl(unsigned int timer, uint16_t ctrl)
+{
+ writew(ctrl, jz4740_timer_base + JZ_REG_TIMER_CTRL(timer));
+}
+
+static inline uint16_t jz4740_timer_get_ctrl(unsigned int timer)
+{
+ return readw(jz4740_timer_base + JZ_REG_TIMER_CTRL(timer));
+}
+
#endif
bool "Qi Hardware Ben NanoNote"
endchoice
-
-config HAVE_PWM
- bool
# Object file lists.
obj-y += prom.o irq.o time.o reset.o setup.o dma.o \
- gpio.o clock.o platform.o timer.o pwm.o serial.o
+ gpio.o clock.o platform.o timer.o serial.o
obj-$(CONFIG_DEBUG_FS) += clock-debugfs.o
&jz4740_codec_device,
&jz4740_rtc_device,
&jz4740_adc_device,
+ &jz4740_pwm_device,
&qi_lb60_gpio_keys,
&qi_lb60_pwm_beeper,
&qi_lb60_charger_device,
.num_resources = ARRAY_SIZE(jz4740_wdt_resources),
.resource = jz4740_wdt_resources,
};
+
+/* PWM */
+struct platform_device jz4740_pwm_device = {
+ .name = "jz4740-pwm",
+ .id = -1,
+};
+++ /dev/null
-/*
- * Copyright (C) 2010, Lars-Peter Clausen <lars@metafoo.de>
- * JZ4740 platform PWM support
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- */
-
-#include <linux/kernel.h>
-
-#include <linux/clk.h>
-#include <linux/err.h>
-#include <linux/pwm.h>
-#include <linux/gpio.h>
-
-#include <asm/mach-jz4740/gpio.h>
-#include "timer.h"
-
-static struct clk *jz4740_pwm_clk;
-
-DEFINE_MUTEX(jz4740_pwm_mutex);
-
-struct pwm_device {
- unsigned int id;
- unsigned int gpio;
- bool used;
-};
-
-static struct pwm_device jz4740_pwm_list[] = {
- { 2, JZ_GPIO_PWM2, false },
- { 3, JZ_GPIO_PWM3, false },
- { 4, JZ_GPIO_PWM4, false },
- { 5, JZ_GPIO_PWM5, false },
- { 6, JZ_GPIO_PWM6, false },
- { 7, JZ_GPIO_PWM7, false },
-};
-
-struct pwm_device *pwm_request(int id, const char *label)
-{
- int ret = 0;
- struct pwm_device *pwm;
-
- if (id < 2 || id > 7 || !jz4740_pwm_clk)
- return ERR_PTR(-ENODEV);
-
- mutex_lock(&jz4740_pwm_mutex);
-
- pwm = &jz4740_pwm_list[id - 2];
- if (pwm->used)
- ret = -EBUSY;
- else
- pwm->used = true;
-
- mutex_unlock(&jz4740_pwm_mutex);
-
- if (ret)
- return ERR_PTR(ret);
-
- ret = gpio_request(pwm->gpio, label);
-
- if (ret) {
- printk(KERN_ERR "Failed to request pwm gpio: %d\n", ret);
- pwm->used = false;
- return ERR_PTR(ret);
- }
-
- jz_gpio_set_function(pwm->gpio, JZ_GPIO_FUNC_PWM);
-
- jz4740_timer_start(id);
-
- return pwm;
-}
-
-void pwm_free(struct pwm_device *pwm)
-{
- pwm_disable(pwm);
- jz4740_timer_set_ctrl(pwm->id, 0);
-
- jz_gpio_set_function(pwm->gpio, JZ_GPIO_FUNC_NONE);
- gpio_free(pwm->gpio);
-
- jz4740_timer_stop(pwm->id);
-
- pwm->used = false;
-}
-
-int pwm_config(struct pwm_device *pwm, int duty_ns, int period_ns)
-{
- unsigned long long tmp;
- unsigned long period, duty;
- unsigned int prescaler = 0;
- unsigned int id = pwm->id;
- uint16_t ctrl;
- bool is_enabled;
-
- if (duty_ns < 0 || duty_ns > period_ns)
- return -EINVAL;
-
- tmp = (unsigned long long)clk_get_rate(jz4740_pwm_clk) * period_ns;
- do_div(tmp, 1000000000);
- period = tmp;
-
- while (period > 0xffff && prescaler < 6) {
- period >>= 2;
- ++prescaler;
- }
-
- if (prescaler == 6)
- return -EINVAL;
-
- tmp = (unsigned long long)period * duty_ns;
- do_div(tmp, period_ns);
- duty = period - tmp;
-
- if (duty >= period)
- duty = period - 1;
-
- is_enabled = jz4740_timer_is_enabled(id);
- if (is_enabled)
- pwm_disable(pwm);
-
- jz4740_timer_set_count(id, 0);
- jz4740_timer_set_duty(id, duty);
- jz4740_timer_set_period(id, period);
-
- ctrl = JZ_TIMER_CTRL_PRESCALER(prescaler) | JZ_TIMER_CTRL_SRC_EXT |
- JZ_TIMER_CTRL_PWM_ABBRUPT_SHUTDOWN;
-
- jz4740_timer_set_ctrl(id, ctrl);
-
- if (is_enabled)
- pwm_enable(pwm);
-
- return 0;
-}
-
-int pwm_enable(struct pwm_device *pwm)
-{
- uint32_t ctrl = jz4740_timer_get_ctrl(pwm->id);
-
- ctrl |= JZ_TIMER_CTRL_PWM_ENABLE;
- jz4740_timer_set_ctrl(pwm->id, ctrl);
- jz4740_timer_enable(pwm->id);
-
- return 0;
-}
-
-void pwm_disable(struct pwm_device *pwm)
-{
- uint32_t ctrl = jz4740_timer_get_ctrl(pwm->id);
-
- ctrl &= ~JZ_TIMER_CTRL_PWM_ENABLE;
- jz4740_timer_disable(pwm->id);
- jz4740_timer_set_ctrl(pwm->id, ctrl);
-}
-
-static int __init jz4740_pwm_init(void)
-{
- int ret = 0;
-
- jz4740_pwm_clk = clk_get(NULL, "ext");
-
- if (IS_ERR(jz4740_pwm_clk)) {
- ret = PTR_ERR(jz4740_pwm_clk);
- jz4740_pwm_clk = NULL;
- }
-
- return ret;
-}
-subsys_initcall(jz4740_pwm_init);
#include <linux/clockchips.h>
#include <asm/mach-jz4740/irq.h>
+#include <asm/mach-jz4740/timer.h>
#include <asm/time.h>
#include "clock.h"
-#include "timer.h"
#define TIMER_CLOCKEVENT 0
#define TIMER_CLOCKSOURCE 1
#include <linux/kernel.h>
#include <linux/module.h>
-#include "timer.h"
-
#include <asm/mach-jz4740/base.h>
+#include <asm/mach-jz4740/timer.h>
void __iomem *jz4740_timer_base;
+EXPORT_SYMBOL_GPL(jz4740_timer_base);
void jz4740_timer_enable_watchdog(void)
{
+++ /dev/null
-/*
- * Copyright (C) 2010, Lars-Peter Clausen <lars@metafoo.de>
- * JZ4740 platform timer support
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- */
-
-#ifndef __MIPS_JZ4740_TIMER_H__
-#define __MIPS_JZ4740_TIMER_H__
-
-#include <linux/module.h>
-#include <linux/io.h>
-
-#define JZ_REG_TIMER_STOP 0x0C
-#define JZ_REG_TIMER_STOP_SET 0x1C
-#define JZ_REG_TIMER_STOP_CLEAR 0x2C
-#define JZ_REG_TIMER_ENABLE 0x00
-#define JZ_REG_TIMER_ENABLE_SET 0x04
-#define JZ_REG_TIMER_ENABLE_CLEAR 0x08
-#define JZ_REG_TIMER_FLAG 0x10
-#define JZ_REG_TIMER_FLAG_SET 0x14
-#define JZ_REG_TIMER_FLAG_CLEAR 0x18
-#define JZ_REG_TIMER_MASK 0x20
-#define JZ_REG_TIMER_MASK_SET 0x24
-#define JZ_REG_TIMER_MASK_CLEAR 0x28
-
-#define JZ_REG_TIMER_DFR(x) (((x) * 0x10) + 0x30)
-#define JZ_REG_TIMER_DHR(x) (((x) * 0x10) + 0x34)
-#define JZ_REG_TIMER_CNT(x) (((x) * 0x10) + 0x38)
-#define JZ_REG_TIMER_CTRL(x) (((x) * 0x10) + 0x3C)
-
-#define JZ_TIMER_IRQ_HALF(x) BIT((x) + 0x10)
-#define JZ_TIMER_IRQ_FULL(x) BIT(x)
-
-#define JZ_TIMER_CTRL_PWM_ABBRUPT_SHUTDOWN BIT(9)
-#define JZ_TIMER_CTRL_PWM_ACTIVE_LOW BIT(8)
-#define JZ_TIMER_CTRL_PWM_ENABLE BIT(7)
-#define JZ_TIMER_CTRL_PRESCALE_MASK 0x1c
-#define JZ_TIMER_CTRL_PRESCALE_OFFSET 0x3
-#define JZ_TIMER_CTRL_PRESCALE_1 (0 << 3)
-#define JZ_TIMER_CTRL_PRESCALE_4 (1 << 3)
-#define JZ_TIMER_CTRL_PRESCALE_16 (2 << 3)
-#define JZ_TIMER_CTRL_PRESCALE_64 (3 << 3)
-#define JZ_TIMER_CTRL_PRESCALE_256 (4 << 3)
-#define JZ_TIMER_CTRL_PRESCALE_1024 (5 << 3)
-
-#define JZ_TIMER_CTRL_PRESCALER(x) ((x) << JZ_TIMER_CTRL_PRESCALE_OFFSET)
-
-#define JZ_TIMER_CTRL_SRC_EXT BIT(2)
-#define JZ_TIMER_CTRL_SRC_RTC BIT(1)
-#define JZ_TIMER_CTRL_SRC_PCLK BIT(0)
-
-extern void __iomem *jz4740_timer_base;
-void __init jz4740_timer_init(void);
-
-static inline void jz4740_timer_stop(unsigned int timer)
-{
- writel(BIT(timer), jz4740_timer_base + JZ_REG_TIMER_STOP_SET);
-}
-
-static inline void jz4740_timer_start(unsigned int timer)
-{
- writel(BIT(timer), jz4740_timer_base + JZ_REG_TIMER_STOP_CLEAR);
-}
-
-static inline bool jz4740_timer_is_enabled(unsigned int timer)
-{
- return readb(jz4740_timer_base + JZ_REG_TIMER_ENABLE) & BIT(timer);
-}
-
-static inline void jz4740_timer_enable(unsigned int timer)
-{
- writeb(BIT(timer), jz4740_timer_base + JZ_REG_TIMER_ENABLE_SET);
-}
-
-static inline void jz4740_timer_disable(unsigned int timer)
-{
- writeb(BIT(timer), jz4740_timer_base + JZ_REG_TIMER_ENABLE_CLEAR);
-}
-
-
-static inline void jz4740_timer_set_period(unsigned int timer, uint16_t period)
-{
- writew(period, jz4740_timer_base + JZ_REG_TIMER_DFR(timer));
-}
-
-static inline void jz4740_timer_set_duty(unsigned int timer, uint16_t duty)
-{
- writew(duty, jz4740_timer_base + JZ_REG_TIMER_DHR(timer));
-}
-
-static inline void jz4740_timer_set_count(unsigned int timer, uint16_t count)
-{
- writew(count, jz4740_timer_base + JZ_REG_TIMER_CNT(timer));
-}
-
-static inline uint16_t jz4740_timer_get_count(unsigned int timer)
-{
- return readw(jz4740_timer_base + JZ_REG_TIMER_CNT(timer));
-}
-
-static inline void jz4740_timer_ack_full(unsigned int timer)
-{
- writel(JZ_TIMER_IRQ_FULL(timer), jz4740_timer_base + JZ_REG_TIMER_FLAG_CLEAR);
-}
-
-static inline void jz4740_timer_irq_full_enable(unsigned int timer)
-{
- writel(JZ_TIMER_IRQ_FULL(timer), jz4740_timer_base + JZ_REG_TIMER_FLAG_CLEAR);
- writel(JZ_TIMER_IRQ_FULL(timer), jz4740_timer_base + JZ_REG_TIMER_MASK_CLEAR);
-}
-
-static inline void jz4740_timer_irq_full_disable(unsigned int timer)
-{
- writel(JZ_TIMER_IRQ_FULL(timer), jz4740_timer_base + JZ_REG_TIMER_MASK_SET);
-}
-
-static inline void jz4740_timer_set_ctrl(unsigned int timer, uint16_t ctrl)
-{
- writew(ctrl, jz4740_timer_base + JZ_REG_TIMER_CTRL(timer));
-}
-
-static inline uint16_t jz4740_timer_get_ctrl(unsigned int timer)
-{
- return readw(jz4740_timer_base + JZ_REG_TIMER_CTRL(timer));
-}
-
-#endif
If unsure, or if you run an older (pre 4.4) gcc, say N.
+config S390_PTDUMP
+ bool "Export kernel pagetable layout to userspace via debugfs"
+ depends on DEBUG_KERNEL
+ select DEBUG_FS
+ ---help---
+ Say Y here if you want to show the kernel pagetable layout in a
+ debugfs file. This information is only useful for kernel developers
+ who are working in architecture specific areas of the kernel.
+ It is probably not a good idea to enable this feature in a production
+ kernel.
+ If in doubt, say "N"
+
config DEBUG_SET_MODULE_RONX
def_bool y
depends on MODULES
-include include/asm-generic/Kbuild.asm
-header-y += chpid.h
-header-y += chsc.h
-header-y += cmb.h
-header-y += dasd.h
-header-y += debug.h
-header-y += kvm_virtio.h
-header-y += monwriter.h
-header-y += qeth.h
-header-y += schid.h
-header-y += tape390.h
-header-y += ucontext.h
-header-y += vtoc.h
-header-y += zcrypt.h
generic-y += clkdev.h
/*
- * Copyright IBM Corp. 2007
+ * Copyright IBM Corp. 2007, 2012
* Author(s): Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
*/
-
#ifndef _ASM_S390_CHPID_H
#define _ASM_S390_CHPID_H
-#include <linux/string.h>
-#include <linux/types.h>
-
-#define __MAX_CHPID 255
-
-struct chp_id {
- u8 reserved1;
- u8 cssid;
- u8 reserved2;
- u8 id;
-} __attribute__((packed));
-
-#ifdef __KERNEL__
+#include <uapi/asm/chpid.h>
#include <asm/cio.h>
static inline void chp_id_init(struct chp_id *chpid)
#define chp_id_for_each(c) \
for (chp_id_init(c); chp_id_is_valid(c); chp_id_next(c))
-#endif /* __KERNEL */
-
#endif /* _ASM_S390_CHPID_H */
#ifndef S390_CMB_H
#define S390_CMB_H
-#include <linux/types.h>
+#include <uapi/asm/cmb.h>
-/**
- * struct cmbdata - channel measurement block data for user space
- * @size: size of the stored data
- * @elapsed_time: time since last sampling
- * @ssch_rsch_count: number of ssch and rsch
- * @sample_count: number of samples
- * @device_connect_time: time of device connect
- * @function_pending_time: time of function pending
- * @device_disconnect_time: time of device disconnect
- * @control_unit_queuing_time: time of control unit queuing
- * @device_active_only_time: time of device active only
- * @device_busy_time: time of device busy (ext. format)
- * @initial_command_response_time: initial command response time (ext. format)
- *
- * All values are stored as 64 bit for simplicity, especially
- * in 32 bit emulation mode. All time values are normalized to
- * nanoseconds.
- * Currently, two formats are known, which differ by the size of
- * this structure, i.e. the last two members are only set when
- * the extended channel measurement facility (first shipped in
- * z990 machines) is activated.
- * Potentially, more fields could be added, which would result in a
- * new ioctl number.
- */
-struct cmbdata {
- __u64 size;
- __u64 elapsed_time;
- /* basic and exended format: */
- __u64 ssch_rsch_count;
- __u64 sample_count;
- __u64 device_connect_time;
- __u64 function_pending_time;
- __u64 device_disconnect_time;
- __u64 control_unit_queuing_time;
- __u64 device_active_only_time;
- /* extended format only: */
- __u64 device_busy_time;
- __u64 initial_command_response_time;
-};
-
-/* enable channel measurement */
-#define BIODASDCMFENABLE _IO(DASD_IOCTL_LETTER, 32)
-/* enable channel measurement */
-#define BIODASDCMFDISABLE _IO(DASD_IOCTL_LETTER, 33)
-/* read channel measurement data */
-#define BIODASDREADALLCMB _IOWR(DASD_IOCTL_LETTER, 33, struct cmbdata)
-
-#ifdef __KERNEL__
struct ccw_device;
extern int enable_cmf(struct ccw_device *cdev);
extern int disable_cmf(struct ccw_device *cdev);
extern u64 cmf_read(struct ccw_device *cdev, int index);
extern int cmf_readall(struct ccw_device *cdev, struct cmbdata *data);
-#endif /* __KERNEL__ */
#endif /* S390_CMB_H */
#include <linux/types.h>
-#ifdef __KERNEL__
-
struct css_general_char {
u64 : 12;
u32 dynio : 1; /* bit 12 */
extern struct css_general_char css_general_characteristics;
-#endif /* __KERNEL__ */
#endif
*
* Copyright IBM Corp. 1999, 2000
*/
-
#ifndef DEBUG_H
#define DEBUG_H
-#include <linux/fs.h>
-
-/* Note:
- * struct __debug_entry must be defined outside of #ifdef __KERNEL__
- * in order to allow a user program to analyze the 'raw'-view.
- */
-
-struct __debug_entry{
- union {
- struct {
- unsigned long long clock:52;
- unsigned long long exception:1;
- unsigned long long level:3;
- unsigned long long cpuid:8;
- } fields;
-
- unsigned long long stck;
- } id;
- void* caller;
-} __attribute__((packed));
-
-
-#define __DEBUG_FEATURE_VERSION 2 /* version of debug feature */
-
-#ifdef __KERNEL__
#include <linux/string.h>
#include <linux/spinlock.h>
#include <linux/kernel.h>
#include <linux/time.h>
+#include <uapi/asm/debug.h>
#define DEBUG_MAX_LEVEL 6 /* debug levels range from 0 to 6 */
#define DEBUG_OFF_LEVEL -1 /* level where debug is switched off */
#define PRINT_FATAL(x...) printk ( KERN_DEBUG PRINTK_HEADER x )
#endif /* DASD_DEBUG */
-#endif /* __KERNEL__ */
#endif /* DEBUG_H */
*
* Author(s): Christian Borntraeger <borntraeger@de.ibm.com>
*/
-
-#ifndef __S390_KVM_PARA_H
-#define __S390_KVM_PARA_H
-
-#ifdef __KERNEL__
-
/*
* Hypercalls for KVM on s390. The calling convention is similar to the
* s390 ABI, so we use R2-R6 for parameters 1-5. In addition we use R1
*
* This work is licensed under the terms of the GNU GPL, version 2.
*/
+#ifndef __S390_KVM_PARA_H
+#define __S390_KVM_PARA_H
+
+#include <uapi/asm/kvm_para.h>
+
+
static inline long kvm_hypercall0(unsigned long nr)
{
return false;
}
-#endif
-
#endif /* __S390_KVM_PARA_H */
*
* Derived from "include/asm-i386/mman.h"
*/
-
#ifndef __S390_MMAN_H__
#define __S390_MMAN_H__
-#include <asm-generic/mman.h>
+#include <uapi/asm/mman.h>
-#if defined(__KERNEL__)
#if !defined(__ASSEMBLY__) && defined(CONFIG_64BIT)
int s390_mmap_check(unsigned long addr, unsigned long len);
#define arch_mmap_check(addr,len,flags) s390_mmap_check(addr,len)
#endif
-#endif
-
#endif /* __S390_MMAN_H__ */
#include <asm/setup.h>
#ifndef __ASSEMBLY__
+static unsigned long pfmf(unsigned long function, unsigned long address)
+{
+ asm volatile(
+ " .insn rre,0xb9af0000,%[function],%[address]"
+ : [address] "+a" (address)
+ : [function] "d" (function)
+ : "memory");
+ return address;
+}
+
static inline void clear_page(void *page)
{
if (MACHINE_HAS_PFMF) {
- asm volatile(
- " .insn rre,0xb9af0000,%0,%1"
- : : "d" (0x10000), "a" (page) : "memory", "cc");
+ pfmf(0x10000, (unsigned long)page);
} else {
register unsigned long reg1 asm ("1") = 0;
register void *reg2 asm ("2") = page;
#ifndef __ASSEMBLY__
/*
- * The vmalloc area will always be on the topmost area of the kernel
- * mapping. We reserve 96MB (31bit) / 128GB (64bit) for vmalloc,
- * which should be enough for any sane case.
- * By putting vmalloc at the top, we maximise the gap between physical
- * memory and vmalloc to catch misplaced memory accesses. As a side
- * effect, this also makes sure that 64 bit module code cannot be used
- * as system call address.
+ * The vmalloc and module area will always be on the topmost area of the kernel
+ * mapping. We reserve 96MB (31bit) / 128GB (64bit) for vmalloc and modules.
+ * On 64 bit kernels we have a 2GB area at the top of the vmalloc area where
+ * modules will reside. That makes sure that inter module branches always
+ * happen without trampolines and in addition the placement within a 2GB frame
+ * is branch prediction unit friendly.
*/
extern unsigned long VMALLOC_START;
extern unsigned long VMALLOC_END;
#define VMEM_MAX_PHYS ((unsigned long) vmemmap)
+#ifdef CONFIG_64BIT
+extern unsigned long MODULES_VADDR;
+extern unsigned long MODULES_END;
+#define MODULES_VADDR MODULES_VADDR
+#define MODULES_END MODULES_END
+#define MODULES_LEN (1UL << 31)
+#endif
+
/*
* A 31 bit pagetable entry of S390 has following format:
* | PFRA | | OS |
return (pmd_val(pmd) & _SEGMENT_ENTRY_INV) != 0UL;
}
+static inline int pmd_large(pmd_t pmd)
+{
+#ifdef CONFIG_64BIT
+ return !!(pmd_val(pmd) & _SEGMENT_ENTRY_LARGE);
+#else
+ return 0;
+#endif
+}
+
static inline int pmd_bad(pmd_t pmd)
{
unsigned long mask = ~_SEGMENT_ENTRY_ORIGIN & ~_SEGMENT_ENTRY_INV;
* Copyright IBM Corp. 1999, 2000
* Author(s): Denis Joseph Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com)
*/
-
#ifndef _S390_PTRACE_H
#define _S390_PTRACE_H
-/*
- * Offsets in the user_regs_struct. They are used for the ptrace
- * system call and in entry.S
- */
-#ifndef __s390x__
-
-#define PT_PSWMASK 0x00
-#define PT_PSWADDR 0x04
-#define PT_GPR0 0x08
-#define PT_GPR1 0x0C
-#define PT_GPR2 0x10
-#define PT_GPR3 0x14
-#define PT_GPR4 0x18
-#define PT_GPR5 0x1C
-#define PT_GPR6 0x20
-#define PT_GPR7 0x24
-#define PT_GPR8 0x28
-#define PT_GPR9 0x2C
-#define PT_GPR10 0x30
-#define PT_GPR11 0x34
-#define PT_GPR12 0x38
-#define PT_GPR13 0x3C
-#define PT_GPR14 0x40
-#define PT_GPR15 0x44
-#define PT_ACR0 0x48
-#define PT_ACR1 0x4C
-#define PT_ACR2 0x50
-#define PT_ACR3 0x54
-#define PT_ACR4 0x58
-#define PT_ACR5 0x5C
-#define PT_ACR6 0x60
-#define PT_ACR7 0x64
-#define PT_ACR8 0x68
-#define PT_ACR9 0x6C
-#define PT_ACR10 0x70
-#define PT_ACR11 0x74
-#define PT_ACR12 0x78
-#define PT_ACR13 0x7C
-#define PT_ACR14 0x80
-#define PT_ACR15 0x84
-#define PT_ORIGGPR2 0x88
-#define PT_FPC 0x90
-/*
- * A nasty fact of life that the ptrace api
- * only supports passing of longs.
- */
-#define PT_FPR0_HI 0x98
-#define PT_FPR0_LO 0x9C
-#define PT_FPR1_HI 0xA0
-#define PT_FPR1_LO 0xA4
-#define PT_FPR2_HI 0xA8
-#define PT_FPR2_LO 0xAC
-#define PT_FPR3_HI 0xB0
-#define PT_FPR3_LO 0xB4
-#define PT_FPR4_HI 0xB8
-#define PT_FPR4_LO 0xBC
-#define PT_FPR5_HI 0xC0
-#define PT_FPR5_LO 0xC4
-#define PT_FPR6_HI 0xC8
-#define PT_FPR6_LO 0xCC
-#define PT_FPR7_HI 0xD0
-#define PT_FPR7_LO 0xD4
-#define PT_FPR8_HI 0xD8
-#define PT_FPR8_LO 0XDC
-#define PT_FPR9_HI 0xE0
-#define PT_FPR9_LO 0xE4
-#define PT_FPR10_HI 0xE8
-#define PT_FPR10_LO 0xEC
-#define PT_FPR11_HI 0xF0
-#define PT_FPR11_LO 0xF4
-#define PT_FPR12_HI 0xF8
-#define PT_FPR12_LO 0xFC
-#define PT_FPR13_HI 0x100
-#define PT_FPR13_LO 0x104
-#define PT_FPR14_HI 0x108
-#define PT_FPR14_LO 0x10C
-#define PT_FPR15_HI 0x110
-#define PT_FPR15_LO 0x114
-#define PT_CR_9 0x118
-#define PT_CR_10 0x11C
-#define PT_CR_11 0x120
-#define PT_IEEE_IP 0x13C
-#define PT_LASTOFF PT_IEEE_IP
-#define PT_ENDREGS 0x140-1
-
-#define GPR_SIZE 4
-#define CR_SIZE 4
-
-#define STACK_FRAME_OVERHEAD 96 /* size of minimum stack frame */
-
-#else /* __s390x__ */
-
-#define PT_PSWMASK 0x00
-#define PT_PSWADDR 0x08
-#define PT_GPR0 0x10
-#define PT_GPR1 0x18
-#define PT_GPR2 0x20
-#define PT_GPR3 0x28
-#define PT_GPR4 0x30
-#define PT_GPR5 0x38
-#define PT_GPR6 0x40
-#define PT_GPR7 0x48
-#define PT_GPR8 0x50
-#define PT_GPR9 0x58
-#define PT_GPR10 0x60
-#define PT_GPR11 0x68
-#define PT_GPR12 0x70
-#define PT_GPR13 0x78
-#define PT_GPR14 0x80
-#define PT_GPR15 0x88
-#define PT_ACR0 0x90
-#define PT_ACR1 0x94
-#define PT_ACR2 0x98
-#define PT_ACR3 0x9C
-#define PT_ACR4 0xA0
-#define PT_ACR5 0xA4
-#define PT_ACR6 0xA8
-#define PT_ACR7 0xAC
-#define PT_ACR8 0xB0
-#define PT_ACR9 0xB4
-#define PT_ACR10 0xB8
-#define PT_ACR11 0xBC
-#define PT_ACR12 0xC0
-#define PT_ACR13 0xC4
-#define PT_ACR14 0xC8
-#define PT_ACR15 0xCC
-#define PT_ORIGGPR2 0xD0
-#define PT_FPC 0xD8
-#define PT_FPR0 0xE0
-#define PT_FPR1 0xE8
-#define PT_FPR2 0xF0
-#define PT_FPR3 0xF8
-#define PT_FPR4 0x100
-#define PT_FPR5 0x108
-#define PT_FPR6 0x110
-#define PT_FPR7 0x118
-#define PT_FPR8 0x120
-#define PT_FPR9 0x128
-#define PT_FPR10 0x130
-#define PT_FPR11 0x138
-#define PT_FPR12 0x140
-#define PT_FPR13 0x148
-#define PT_FPR14 0x150
-#define PT_FPR15 0x158
-#define PT_CR_9 0x160
-#define PT_CR_10 0x168
-#define PT_CR_11 0x170
-#define PT_IEEE_IP 0x1A8
-#define PT_LASTOFF PT_IEEE_IP
-#define PT_ENDREGS 0x1B0-1
-
-#define GPR_SIZE 8
-#define CR_SIZE 8
-
-#define STACK_FRAME_OVERHEAD 160 /* size of minimum stack frame */
-
-#endif /* __s390x__ */
-
-#define NUM_GPRS 16
-#define NUM_FPRS 16
-#define NUM_CRS 16
-#define NUM_ACRS 16
-
-#define NUM_CR_WORDS 3
-
-#define FPR_SIZE 8
-#define FPC_SIZE 4
-#define FPC_PAD_SIZE 4 /* gcc insists on aligning the fpregs */
-#define ACR_SIZE 4
-
-
-#define PTRACE_OLDSETOPTIONS 21
+#include <uapi/asm/ptrace.h>
#ifndef __ASSEMBLY__
-#include <linux/stddef.h>
-#include <linux/types.h>
-
-typedef union
-{
- float f;
- double d;
- __u64 ui;
- struct
- {
- __u32 hi;
- __u32 lo;
- } fp;
-} freg_t;
-
-typedef struct
-{
- __u32 fpc;
- freg_t fprs[NUM_FPRS];
-} s390_fp_regs;
-
-#define FPC_EXCEPTION_MASK 0xF8000000
-#define FPC_FLAGS_MASK 0x00F80000
-#define FPC_DXC_MASK 0x0000FF00
-#define FPC_RM_MASK 0x00000003
-#define FPC_VALID_MASK 0xF8F8FF03
-
-/* this typedef defines how a Program Status Word looks like */
-typedef struct
-{
- unsigned long mask;
- unsigned long addr;
-} __attribute__ ((aligned(8))) psw_t;
-
-typedef struct
-{
- __u32 mask;
- __u32 addr;
-} __attribute__ ((aligned(8))) psw_compat_t;
-
#ifndef __s390x__
-
-#define PSW_MASK_PER 0x40000000UL
-#define PSW_MASK_DAT 0x04000000UL
-#define PSW_MASK_IO 0x02000000UL
-#define PSW_MASK_EXT 0x01000000UL
-#define PSW_MASK_KEY 0x00F00000UL
-#define PSW_MASK_BASE 0x00080000UL /* always one */
-#define PSW_MASK_MCHECK 0x00040000UL
-#define PSW_MASK_WAIT 0x00020000UL
-#define PSW_MASK_PSTATE 0x00010000UL
-#define PSW_MASK_ASC 0x0000C000UL
-#define PSW_MASK_CC 0x00003000UL
-#define PSW_MASK_PM 0x00000F00UL
-#define PSW_MASK_RI 0x00000000UL
-#define PSW_MASK_EA 0x00000000UL
-#define PSW_MASK_BA 0x00000000UL
-
-#define PSW_MASK_USER 0x00003F00UL
-
-#define PSW_ADDR_AMODE 0x80000000UL
-#define PSW_ADDR_INSN 0x7FFFFFFFUL
-
-#define PSW_DEFAULT_KEY (((unsigned long) PAGE_DEFAULT_ACC) << 20)
-
-#define PSW_ASC_PRIMARY 0x00000000UL
-#define PSW_ASC_ACCREG 0x00004000UL
-#define PSW_ASC_SECONDARY 0x00008000UL
-#define PSW_ASC_HOME 0x0000C000UL
-
#else /* __s390x__ */
-
-#define PSW_MASK_PER 0x4000000000000000UL
-#define PSW_MASK_DAT 0x0400000000000000UL
-#define PSW_MASK_IO 0x0200000000000000UL
-#define PSW_MASK_EXT 0x0100000000000000UL
-#define PSW_MASK_BASE 0x0000000000000000UL
-#define PSW_MASK_KEY 0x00F0000000000000UL
-#define PSW_MASK_MCHECK 0x0004000000000000UL
-#define PSW_MASK_WAIT 0x0002000000000000UL
-#define PSW_MASK_PSTATE 0x0001000000000000UL
-#define PSW_MASK_ASC 0x0000C00000000000UL
-#define PSW_MASK_CC 0x0000300000000000UL
-#define PSW_MASK_PM 0x00000F0000000000UL
-#define PSW_MASK_RI 0x0000008000000000UL
-#define PSW_MASK_EA 0x0000000100000000UL
-#define PSW_MASK_BA 0x0000000080000000UL
-
-#define PSW_MASK_USER 0x00003F8180000000UL
-
-#define PSW_ADDR_AMODE 0x0000000000000000UL
-#define PSW_ADDR_INSN 0xFFFFFFFFFFFFFFFFUL
-
-#define PSW_DEFAULT_KEY (((unsigned long) PAGE_DEFAULT_ACC) << 52)
-
-#define PSW_ASC_PRIMARY 0x0000000000000000UL
-#define PSW_ASC_ACCREG 0x0000400000000000UL
-#define PSW_ASC_SECONDARY 0x0000800000000000UL
-#define PSW_ASC_HOME 0x0000C00000000000UL
-
#endif /* __s390x__ */
-
-#ifdef __KERNEL__
extern long psw_kernel_bits;
extern long psw_user_bits;
-#endif
-
-/*
- * The s390_regs structure is used to define the elf_gregset_t.
- */
-typedef struct
-{
- psw_t psw;
- unsigned long gprs[NUM_GPRS];
- unsigned int acrs[NUM_ACRS];
- unsigned long orig_gpr2;
-} s390_regs;
-
-typedef struct
-{
- psw_compat_t psw;
- __u32 gprs[NUM_GPRS];
- __u32 acrs[NUM_ACRS];
- __u32 orig_gpr2;
-} s390_compat_regs;
-
-typedef struct
-{
- __u32 gprs_high[NUM_GPRS];
-} s390_compat_regs_high;
-
-#ifdef __KERNEL__
/*
* The pt_regs struct defines the way the registers are stored on
#define PER_CONTROL_SUSPENSION 0x00400000UL
#define PER_CONTROL_ALTERATION 0x00200000UL
-#endif
-
-/*
- * Now for the user space program event recording (trace) definitions.
- * The following structures are used only for the ptrace interface, don't
- * touch or even look at it if you don't want to modify the user-space
- * ptrace interface. In particular stay away from it for in-kernel PER.
- */
-typedef struct
-{
- unsigned long cr[NUM_CR_WORDS];
-} per_cr_words;
-
-#define PER_EM_MASK 0xE8000000UL
-
-typedef struct
-{
#ifdef __s390x__
- unsigned : 32;
#endif /* __s390x__ */
- unsigned em_branching : 1;
- unsigned em_instruction_fetch : 1;
- /*
- * Switching on storage alteration automatically fixes
- * the storage alteration event bit in the users std.
- */
- unsigned em_storage_alteration : 1;
- unsigned em_gpr_alt_unused : 1;
- unsigned em_store_real_address : 1;
- unsigned : 3;
- unsigned branch_addr_ctl : 1;
- unsigned : 1;
- unsigned storage_alt_space_ctl : 1;
- unsigned : 21;
- unsigned long starting_addr;
- unsigned long ending_addr;
-} per_cr_bits;
-
-typedef struct
-{
- unsigned short perc_atmid;
- unsigned long address;
- unsigned char access_id;
-} per_lowcore_words;
-
-typedef struct
-{
- unsigned perc_branching : 1;
- unsigned perc_instruction_fetch : 1;
- unsigned perc_storage_alteration : 1;
- unsigned perc_gpr_alt_unused : 1;
- unsigned perc_store_real_address : 1;
- unsigned : 3;
- unsigned atmid_psw_bit_31 : 1;
- unsigned atmid_validity_bit : 1;
- unsigned atmid_psw_bit_32 : 1;
- unsigned atmid_psw_bit_5 : 1;
- unsigned atmid_psw_bit_16 : 1;
- unsigned atmid_psw_bit_17 : 1;
- unsigned si : 2;
- unsigned long address;
- unsigned : 4;
- unsigned access_id : 4;
-} per_lowcore_bits;
-
-typedef struct
-{
- union {
- per_cr_words words;
- per_cr_bits bits;
- } control_regs;
- /*
- * Use these flags instead of setting em_instruction_fetch
- * directly they are used so that single stepping can be
- * switched on & off while not affecting other tracing
- */
- unsigned single_step : 1;
- unsigned instruction_fetch : 1;
- unsigned : 30;
- /*
- * These addresses are copied into cr10 & cr11 if single
- * stepping is switched off
- */
- unsigned long starting_addr;
- unsigned long ending_addr;
- union {
- per_lowcore_words words;
- per_lowcore_bits bits;
- } lowcore;
-} per_struct;
-
-typedef struct
-{
- unsigned int len;
- unsigned long kernel_addr;
- unsigned long process_addr;
-} ptrace_area;
-
-/*
- * S/390 specific non posix ptrace requests. I chose unusual values so
- * they are unlikely to clash with future ptrace definitions.
- */
-#define PTRACE_PEEKUSR_AREA 0x5000
-#define PTRACE_POKEUSR_AREA 0x5001
-#define PTRACE_PEEKTEXT_AREA 0x5002
-#define PTRACE_PEEKDATA_AREA 0x5003
-#define PTRACE_POKETEXT_AREA 0x5004
-#define PTRACE_POKEDATA_AREA 0x5005
-#define PTRACE_GET_LAST_BREAK 0x5006
-#define PTRACE_PEEK_SYSTEM_CALL 0x5007
-#define PTRACE_POKE_SYSTEM_CALL 0x5008
-#define PTRACE_ENABLE_TE 0x5009
-#define PTRACE_DISABLE_TE 0x5010
-
-/*
- * PT_PROT definition is loosely based on hppa bsd definition in
- * gdb/hppab-nat.c
- */
-#define PTRACE_PROT 21
-
-typedef enum
-{
- ptprot_set_access_watchpoint,
- ptprot_set_write_watchpoint,
- ptprot_disable_watchpoint
-} ptprot_flags;
-
-typedef struct
-{
- unsigned long lowaddr;
- unsigned long hiaddr;
- ptprot_flags prot;
-} ptprot_area;
-
-/* Sequence of bytes for breakpoint illegal instruction. */
-#define S390_BREAKPOINT {0x0,0x1}
-#define S390_BREAKPOINT_U16 ((__u16)0x0001)
-#define S390_SYSCALL_OPCODE ((__u16)0x0a00)
-#define S390_SYSCALL_SIZE 2
-
-/*
- * The user_regs_struct defines the way the user registers are
- * store on the stack for signal handling.
- */
-struct user_regs_struct
-{
- psw_t psw;
- unsigned long gprs[NUM_GPRS];
- unsigned int acrs[NUM_ACRS];
- unsigned long orig_gpr2;
- s390_fp_regs fp_regs;
- /*
- * These per registers are in here so that gdb can modify them
- * itself as there is no "official" ptrace interface for hardware
- * watchpoints. This is the way intel does it.
- */
- per_struct per_info;
- unsigned long ieee_instruction_pointer; /* obsolete, always 0 */
-};
-
-#ifdef __KERNEL__
/*
* These are defined as per linux/ptrace.h, which see.
*/
return regs->gprs[15] & PSW_ADDR_INSN;
}
-#endif /* __KERNEL__ */
#endif /* __ASSEMBLY__ */
-
#endif /* _S390_PTRACE_H */
#ifndef ASM_SCHID_H
#define ASM_SCHID_H
-#include <linux/types.h>
-
-struct subchannel_id {
- __u32 cssid : 8;
- __u32 : 4;
- __u32 m : 1;
- __u32 ssid : 2;
- __u32 one : 1;
- __u32 sch_no : 16;
-} __attribute__ ((packed, aligned(4)));
-
-#ifdef __KERNEL__
#include <linux/string.h>
+#include <uapi/asm/schid.h>
/* Helper function for sane state of pre-allocated subchannel_id. */
static inline void
return !memcmp(schid1, schid2, sizeof(struct subchannel_id));
}
-#endif /* __KERNEL__ */
-
#endif /* ASM_SCHID_H */
* S390 version
* Copyright IBM Corp. 1999, 2010
*/
-
#ifndef _ASM_S390_SETUP_H
#define _ASM_S390_SETUP_H
-#define COMMAND_LINE_SIZE 4096
-
-#define ARCH_COMMAND_LINE_SIZE 896
+#include <uapi/asm/setup.h>
-#ifdef __KERNEL__
#define PARMAREA 0x10400
#define MEMORY_CHUNKS 256
#define MACHINE_FLAG_DIAG9C (1UL << 7)
#define MACHINE_FLAG_MVCOS (1UL << 8)
#define MACHINE_FLAG_KVM (1UL << 9)
-#define MACHINE_FLAG_HPAGE (1UL << 10)
-#define MACHINE_FLAG_PFMF (1UL << 11)
+#define MACHINE_FLAG_EDAT1 (1UL << 10)
+#define MACHINE_FLAG_EDAT2 (1UL << 11)
#define MACHINE_FLAG_LPAR (1UL << 12)
#define MACHINE_FLAG_SPP (1UL << 13)
#define MACHINE_FLAG_TOPOLOGY (1UL << 14)
#define MACHINE_IS_LPAR (S390_lowcore.machine_flags & MACHINE_FLAG_LPAR)
#define MACHINE_HAS_DIAG9C (S390_lowcore.machine_flags & MACHINE_FLAG_DIAG9C)
+#define MACHINE_HAS_PFMF MACHINE_HAS_EDAT1
+#define MACHINE_HAS_HPAGE MACHINE_HAS_EDAT1
#ifndef CONFIG_64BIT
#define MACHINE_HAS_IEEE (S390_lowcore.machine_flags & MACHINE_FLAG_IEEE)
#define MACHINE_HAS_DIAG44 (1)
#define MACHINE_HAS_MVPG (S390_lowcore.machine_flags & MACHINE_FLAG_MVPG)
#define MACHINE_HAS_MVCOS (0)
-#define MACHINE_HAS_HPAGE (0)
-#define MACHINE_HAS_PFMF (0)
+#define MACHINE_HAS_EDAT1 (0)
+#define MACHINE_HAS_EDAT2 (0)
#define MACHINE_HAS_SPP (0)
#define MACHINE_HAS_TOPOLOGY (0)
#define MACHINE_HAS_TE (0)
#define MACHINE_HAS_DIAG44 (S390_lowcore.machine_flags & MACHINE_FLAG_DIAG44)
#define MACHINE_HAS_MVPG (1)
#define MACHINE_HAS_MVCOS (S390_lowcore.machine_flags & MACHINE_FLAG_MVCOS)
-#define MACHINE_HAS_HPAGE (S390_lowcore.machine_flags & MACHINE_FLAG_HPAGE)
-#define MACHINE_HAS_PFMF (S390_lowcore.machine_flags & MACHINE_FLAG_PFMF)
+#define MACHINE_HAS_EDAT1 (S390_lowcore.machine_flags & MACHINE_FLAG_EDAT1)
+#define MACHINE_HAS_EDAT2 (S390_lowcore.machine_flags & MACHINE_FLAG_EDAT2)
#define MACHINE_HAS_SPP (S390_lowcore.machine_flags & MACHINE_FLAG_SPP)
#define MACHINE_HAS_TOPOLOGY (S390_lowcore.machine_flags & MACHINE_FLAG_TOPOLOGY)
#define MACHINE_HAS_TE (S390_lowcore.machine_flags & MACHINE_FLAG_TE)
#define COMMAND_LINE 0x10480
#endif /* __ASSEMBLY__ */
-#endif /* __KERNEL__ */
#endif /* _ASM_S390_SETUP_H */
*
* Derived from "include/asm-i386/signal.h"
*/
-
#ifndef _ASMS390_SIGNAL_H
#define _ASMS390_SIGNAL_H
-#include <linux/types.h>
-#include <linux/time.h>
-
-/* Avoid too many header ordering problems. */
-struct siginfo;
-struct pt_regs;
+#include <uapi/asm/signal.h>
-#ifdef __KERNEL__
/* Most things should be clean enough to redefine this at will, if care
is taken to make libc match. */
#include <asm/sigcontext.h>
unsigned long sig[_NSIG_WORDS];
} sigset_t;
-#else
-/* Here we must cater to libcs that poke about in kernel headers. */
-
-#define NSIG 32
-typedef unsigned long sigset_t;
-
-#endif /* __KERNEL__ */
-
-#define SIGHUP 1
-#define SIGINT 2
-#define SIGQUIT 3
-#define SIGILL 4
-#define SIGTRAP 5
-#define SIGABRT 6
-#define SIGIOT 6
-#define SIGBUS 7
-#define SIGFPE 8
-#define SIGKILL 9
-#define SIGUSR1 10
-#define SIGSEGV 11
-#define SIGUSR2 12
-#define SIGPIPE 13
-#define SIGALRM 14
-#define SIGTERM 15
-#define SIGSTKFLT 16
-#define SIGCHLD 17
-#define SIGCONT 18
-#define SIGSTOP 19
-#define SIGTSTP 20
-#define SIGTTIN 21
-#define SIGTTOU 22
-#define SIGURG 23
-#define SIGXCPU 24
-#define SIGXFSZ 25
-#define SIGVTALRM 26
-#define SIGPROF 27
-#define SIGWINCH 28
-#define SIGIO 29
-#define SIGPOLL SIGIO
-/*
-#define SIGLOST 29
-*/
-#define SIGPWR 30
-#define SIGSYS 31
-#define SIGUNUSED 31
-
-/* These should not be considered constants from userland. */
-#define SIGRTMIN 32
-#define SIGRTMAX _NSIG
-
-/*
- * SA_FLAGS values:
- *
- * SA_ONSTACK indicates that a registered stack_t will be used.
- * SA_RESTART flag to get restarting signals (which were the default long ago)
- * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
- * SA_RESETHAND clears the handler when the signal is delivered.
- * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
- * SA_NODEFER prevents the current signal from being masked in the handler.
- *
- * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
- * Unix names RESETHAND and NODEFER respectively.
- */
-#define SA_NOCLDSTOP 0x00000001
-#define SA_NOCLDWAIT 0x00000002
-#define SA_SIGINFO 0x00000004
-#define SA_ONSTACK 0x08000000
-#define SA_RESTART 0x10000000
-#define SA_NODEFER 0x40000000
-#define SA_RESETHAND 0x80000000
-
-#define SA_NOMASK SA_NODEFER
-#define SA_ONESHOT SA_RESETHAND
-
-#define SA_RESTORER 0x04000000
-
-/*
- * sigaltstack controls
- */
-#define SS_ONSTACK 1
-#define SS_DISABLE 2
-
-#define MINSIGSTKSZ 2048
-#define SIGSTKSZ 8192
-
-#include <asm-generic/signal-defs.h>
-
-#ifdef __KERNEL__
struct old_sigaction {
__sighandler_t sa_handler;
old_sigset_t sa_mask;
#define ptrace_signal_deliver(regs, cookie) do { } while (0)
-#else
-/* Here we must cater to libcs that poke about in kernel headers. */
-
-struct sigaction {
- union {
- __sighandler_t _sa_handler;
- void (*_sa_sigaction)(int, struct siginfo *, void *);
- } _u;
-#ifndef __s390x__ /* lovely */
- sigset_t sa_mask;
- unsigned long sa_flags;
- void (*sa_restorer)(void);
-#else /* __s390x__ */
- unsigned long sa_flags;
- void (*sa_restorer)(void);
- sigset_t sa_mask;
-#endif /* __s390x__ */
-};
-
-#define sa_handler _u._sa_handler
-#define sa_sigaction _u._sa_sigaction
-
-#endif /* __KERNEL__ */
-
-typedef struct sigaltstack {
- void __user *ss_sp;
- int ss_flags;
- size_t ss_size;
-} stack_t;
-
-
#endif
*
* Derived from "include/asm-i386/termios.h"
*/
-
#ifndef _S390_TERMIOS_H
#define _S390_TERMIOS_H
-#include <asm/termbits.h>
-#include <asm/ioctls.h>
-
-struct winsize {
- unsigned short ws_row;
- unsigned short ws_col;
- unsigned short ws_xpixel;
- unsigned short ws_ypixel;
-};
-
-#define NCC 8
-struct termio {
- unsigned short c_iflag; /* input mode flags */
- unsigned short c_oflag; /* output mode flags */
- unsigned short c_cflag; /* control mode flags */
- unsigned short c_lflag; /* local mode flags */
- unsigned char c_line; /* line discipline */
- unsigned char c_cc[NCC]; /* control characters */
-};
+#include <uapi/asm/termios.h>
-/* modem lines */
-#define TIOCM_LE 0x001
-#define TIOCM_DTR 0x002
-#define TIOCM_RTS 0x004
-#define TIOCM_ST 0x008
-#define TIOCM_SR 0x010
-#define TIOCM_CTS 0x020
-#define TIOCM_CAR 0x040
-#define TIOCM_RNG 0x080
-#define TIOCM_DSR 0x100
-#define TIOCM_CD TIOCM_CAR
-#define TIOCM_RI TIOCM_RNG
-#define TIOCM_OUT1 0x2000
-#define TIOCM_OUT2 0x4000
-#define TIOCM_LOOP 0x8000
-
-/* ioctl (fd, TIOCSERGETLSR, &result) where result may be as below */
-
-#ifdef __KERNEL__
/* intr=^C quit=^\ erase=del kill=^U
eof=^D vtime=\0 vmin=\1 sxtc=\0
#include <asm-generic/termios-base.h>
-#endif /* __KERNEL__ */
-
#endif /* _S390_TERMIOS_H */
*
* Derived from "include/asm-i386/types.h"
*/
-
#ifndef _S390_TYPES_H
#define _S390_TYPES_H
-#include <asm-generic/int-ll64.h>
-
-#ifndef __ASSEMBLY__
-
-/* A address type so that arithmetic can be done on it & it can be upgraded to
- 64 bit when necessary
-*/
-typedef unsigned long addr_t;
-typedef __signed__ long saddr_t;
-
-#endif /* __ASSEMBLY__ */
+#include <uapi/asm/types.h>
/*
* These aren't exported outside the kernel to avoid name space clashes
*/
-#ifdef __KERNEL__
#ifndef __ASSEMBLY__
#endif /* ! CONFIG_64BIT */
#endif /* __ASSEMBLY__ */
-#endif /* __KERNEL__ */
#endif /* _S390_TYPES_H */
*
* Derived from "include/asm-i386/unistd.h"
*/
-
#ifndef _ASM_S390_UNISTD_H_
#define _ASM_S390_UNISTD_H_
-/*
- * This file contains the system call numbers.
- */
-
-#define __NR_exit 1
-#define __NR_fork 2
-#define __NR_read 3
-#define __NR_write 4
-#define __NR_open 5
-#define __NR_close 6
-#define __NR_restart_syscall 7
-#define __NR_creat 8
-#define __NR_link 9
-#define __NR_unlink 10
-#define __NR_execve 11
-#define __NR_chdir 12
-#define __NR_mknod 14
-#define __NR_chmod 15
-#define __NR_lseek 19
-#define __NR_getpid 20
-#define __NR_mount 21
-#define __NR_umount 22
-#define __NR_ptrace 26
-#define __NR_alarm 27
-#define __NR_pause 29
-#define __NR_utime 30
-#define __NR_access 33
-#define __NR_nice 34
-#define __NR_sync 36
-#define __NR_kill 37
-#define __NR_rename 38
-#define __NR_mkdir 39
-#define __NR_rmdir 40
-#define __NR_dup 41
-#define __NR_pipe 42
-#define __NR_times 43
-#define __NR_brk 45
-#define __NR_signal 48
-#define __NR_acct 51
-#define __NR_umount2 52
-#define __NR_ioctl 54
-#define __NR_fcntl 55
-#define __NR_setpgid 57
-#define __NR_umask 60
-#define __NR_chroot 61
-#define __NR_ustat 62
-#define __NR_dup2 63
-#define __NR_getppid 64
-#define __NR_getpgrp 65
-#define __NR_setsid 66
-#define __NR_sigaction 67
-#define __NR_sigsuspend 72
-#define __NR_sigpending 73
-#define __NR_sethostname 74
-#define __NR_setrlimit 75
-#define __NR_getrusage 77
-#define __NR_gettimeofday 78
-#define __NR_settimeofday 79
-#define __NR_symlink 83
-#define __NR_readlink 85
-#define __NR_uselib 86
-#define __NR_swapon 87
-#define __NR_reboot 88
-#define __NR_readdir 89
-#define __NR_mmap 90
-#define __NR_munmap 91
-#define __NR_truncate 92
-#define __NR_ftruncate 93
-#define __NR_fchmod 94
-#define __NR_getpriority 96
-#define __NR_setpriority 97
-#define __NR_statfs 99
-#define __NR_fstatfs 100
-#define __NR_socketcall 102
-#define __NR_syslog 103
-#define __NR_setitimer 104
-#define __NR_getitimer 105
-#define __NR_stat 106
-#define __NR_lstat 107
-#define __NR_fstat 108
-#define __NR_lookup_dcookie 110
-#define __NR_vhangup 111
-#define __NR_idle 112
-#define __NR_wait4 114
-#define __NR_swapoff 115
-#define __NR_sysinfo 116
-#define __NR_ipc 117
-#define __NR_fsync 118
-#define __NR_sigreturn 119
-#define __NR_clone 120
-#define __NR_setdomainname 121
-#define __NR_uname 122
-#define __NR_adjtimex 124
-#define __NR_mprotect 125
-#define __NR_sigprocmask 126
-#define __NR_create_module 127
-#define __NR_init_module 128
-#define __NR_delete_module 129
-#define __NR_get_kernel_syms 130
-#define __NR_quotactl 131
-#define __NR_getpgid 132
-#define __NR_fchdir 133
-#define __NR_bdflush 134
-#define __NR_sysfs 135
-#define __NR_personality 136
-#define __NR_afs_syscall 137 /* Syscall for Andrew File System */
-#define __NR_getdents 141
-#define __NR_flock 143
-#define __NR_msync 144
-#define __NR_readv 145
-#define __NR_writev 146
-#define __NR_getsid 147
-#define __NR_fdatasync 148
-#define __NR__sysctl 149
-#define __NR_mlock 150
-#define __NR_munlock 151
-#define __NR_mlockall 152
-#define __NR_munlockall 153
-#define __NR_sched_setparam 154
-#define __NR_sched_getparam 155
-#define __NR_sched_setscheduler 156
-#define __NR_sched_getscheduler 157
-#define __NR_sched_yield 158
-#define __NR_sched_get_priority_max 159
-#define __NR_sched_get_priority_min 160
-#define __NR_sched_rr_get_interval 161
-#define __NR_nanosleep 162
-#define __NR_mremap 163
-#define __NR_query_module 167
-#define __NR_poll 168
-#define __NR_nfsservctl 169
-#define __NR_prctl 172
-#define __NR_rt_sigreturn 173
-#define __NR_rt_sigaction 174
-#define __NR_rt_sigprocmask 175
-#define __NR_rt_sigpending 176
-#define __NR_rt_sigtimedwait 177
-#define __NR_rt_sigqueueinfo 178
-#define __NR_rt_sigsuspend 179
-#define __NR_pread64 180
-#define __NR_pwrite64 181
-#define __NR_getcwd 183
-#define __NR_capget 184
-#define __NR_capset 185
-#define __NR_sigaltstack 186
-#define __NR_sendfile 187
-#define __NR_getpmsg 188
-#define __NR_putpmsg 189
-#define __NR_vfork 190
-#define __NR_pivot_root 217
-#define __NR_mincore 218
-#define __NR_madvise 219
-#define __NR_getdents64 220
-#define __NR_readahead 222
-#define __NR_setxattr 224
-#define __NR_lsetxattr 225
-#define __NR_fsetxattr 226
-#define __NR_getxattr 227
-#define __NR_lgetxattr 228
-#define __NR_fgetxattr 229
-#define __NR_listxattr 230
-#define __NR_llistxattr 231
-#define __NR_flistxattr 232
-#define __NR_removexattr 233
-#define __NR_lremovexattr 234
-#define __NR_fremovexattr 235
-#define __NR_gettid 236
-#define __NR_tkill 237
-#define __NR_futex 238
-#define __NR_sched_setaffinity 239
-#define __NR_sched_getaffinity 240
-#define __NR_tgkill 241
-/* Number 242 is reserved for tux */
-#define __NR_io_setup 243
-#define __NR_io_destroy 244
-#define __NR_io_getevents 245
-#define __NR_io_submit 246
-#define __NR_io_cancel 247
-#define __NR_exit_group 248
-#define __NR_epoll_create 249
-#define __NR_epoll_ctl 250
-#define __NR_epoll_wait 251
-#define __NR_set_tid_address 252
-#define __NR_fadvise64 253
-#define __NR_timer_create 254
-#define __NR_timer_settime (__NR_timer_create+1)
-#define __NR_timer_gettime (__NR_timer_create+2)
-#define __NR_timer_getoverrun (__NR_timer_create+3)
-#define __NR_timer_delete (__NR_timer_create+4)
-#define __NR_clock_settime (__NR_timer_create+5)
-#define __NR_clock_gettime (__NR_timer_create+6)
-#define __NR_clock_getres (__NR_timer_create+7)
-#define __NR_clock_nanosleep (__NR_timer_create+8)
-/* Number 263 is reserved for vserver */
-#define __NR_statfs64 265
-#define __NR_fstatfs64 266
-#define __NR_remap_file_pages 267
-/* Number 268 is reserved for new sys_mbind */
-/* Number 269 is reserved for new sys_get_mempolicy */
-/* Number 270 is reserved for new sys_set_mempolicy */
-#define __NR_mq_open 271
-#define __NR_mq_unlink 272
-#define __NR_mq_timedsend 273
-#define __NR_mq_timedreceive 274
-#define __NR_mq_notify 275
-#define __NR_mq_getsetattr 276
-#define __NR_kexec_load 277
-#define __NR_add_key 278
-#define __NR_request_key 279
-#define __NR_keyctl 280
-#define __NR_waitid 281
-#define __NR_ioprio_set 282
-#define __NR_ioprio_get 283
-#define __NR_inotify_init 284
-#define __NR_inotify_add_watch 285
-#define __NR_inotify_rm_watch 286
-/* Number 287 is reserved for new sys_migrate_pages */
-#define __NR_openat 288
-#define __NR_mkdirat 289
-#define __NR_mknodat 290
-#define __NR_fchownat 291
-#define __NR_futimesat 292
-#define __NR_unlinkat 294
-#define __NR_renameat 295
-#define __NR_linkat 296
-#define __NR_symlinkat 297
-#define __NR_readlinkat 298
-#define __NR_fchmodat 299
-#define __NR_faccessat 300
-#define __NR_pselect6 301
-#define __NR_ppoll 302
-#define __NR_unshare 303
-#define __NR_set_robust_list 304
-#define __NR_get_robust_list 305
-#define __NR_splice 306
-#define __NR_sync_file_range 307
-#define __NR_tee 308
-#define __NR_vmsplice 309
-/* Number 310 is reserved for new sys_move_pages */
-#define __NR_getcpu 311
-#define __NR_epoll_pwait 312
-#define __NR_utimes 313
-#define __NR_fallocate 314
-#define __NR_utimensat 315
-#define __NR_signalfd 316
-#define __NR_timerfd 317
-#define __NR_eventfd 318
-#define __NR_timerfd_create 319
-#define __NR_timerfd_settime 320
-#define __NR_timerfd_gettime 321
-#define __NR_signalfd4 322
-#define __NR_eventfd2 323
-#define __NR_inotify_init1 324
-#define __NR_pipe2 325
-#define __NR_dup3 326
-#define __NR_epoll_create1 327
-#define __NR_preadv 328
-#define __NR_pwritev 329
-#define __NR_rt_tgsigqueueinfo 330
-#define __NR_perf_event_open 331
-#define __NR_fanotify_init 332
-#define __NR_fanotify_mark 333
-#define __NR_prlimit64 334
-#define __NR_name_to_handle_at 335
-#define __NR_open_by_handle_at 336
-#define __NR_clock_adjtime 337
-#define __NR_syncfs 338
-#define __NR_setns 339
-#define __NR_process_vm_readv 340
-#define __NR_process_vm_writev 341
-#define __NR_s390_runtime_instr 342
-#define __NR_kcmp 343
-#define NR_syscalls 344
-
-/*
- * There are some system calls that are not present on 64 bit, some
- * have a different name although they do the same (e.g. __NR_chown32
- * is __NR_chown on 64 bit).
- */
-#ifndef __s390x__
-
-#define __NR_time 13
-#define __NR_lchown 16
-#define __NR_setuid 23
-#define __NR_getuid 24
-#define __NR_stime 25
-#define __NR_setgid 46
-#define __NR_getgid 47
-#define __NR_geteuid 49
-#define __NR_getegid 50
-#define __NR_setreuid 70
-#define __NR_setregid 71
-#define __NR_getrlimit 76
-#define __NR_getgroups 80
-#define __NR_setgroups 81
-#define __NR_fchown 95
-#define __NR_ioperm 101
-#define __NR_setfsuid 138
-#define __NR_setfsgid 139
-#define __NR__llseek 140
-#define __NR__newselect 142
-#define __NR_setresuid 164
-#define __NR_getresuid 165
-#define __NR_setresgid 170
-#define __NR_getresgid 171
-#define __NR_chown 182
-#define __NR_ugetrlimit 191 /* SuS compliant getrlimit */
-#define __NR_mmap2 192
-#define __NR_truncate64 193
-#define __NR_ftruncate64 194
-#define __NR_stat64 195
-#define __NR_lstat64 196
-#define __NR_fstat64 197
-#define __NR_lchown32 198
-#define __NR_getuid32 199
-#define __NR_getgid32 200
-#define __NR_geteuid32 201
-#define __NR_getegid32 202
-#define __NR_setreuid32 203
-#define __NR_setregid32 204
-#define __NR_getgroups32 205
-#define __NR_setgroups32 206
-#define __NR_fchown32 207
-#define __NR_setresuid32 208
-#define __NR_getresuid32 209
-#define __NR_setresgid32 210
-#define __NR_getresgid32 211
-#define __NR_chown32 212
-#define __NR_setuid32 213
-#define __NR_setgid32 214
-#define __NR_setfsuid32 215
-#define __NR_setfsgid32 216
-#define __NR_fcntl64 221
-#define __NR_sendfile64 223
-#define __NR_fadvise64_64 264
-#define __NR_fstatat64 293
-
-#else
-
-#define __NR_select 142
-#define __NR_getrlimit 191 /* SuS compliant getrlimit */
-#define __NR_lchown 198
-#define __NR_getuid 199
-#define __NR_getgid 200
-#define __NR_geteuid 201
-#define __NR_getegid 202
-#define __NR_setreuid 203
-#define __NR_setregid 204
-#define __NR_getgroups 205
-#define __NR_setgroups 206
-#define __NR_fchown 207
-#define __NR_setresuid 208
-#define __NR_getresuid 209
-#define __NR_setresgid 210
-#define __NR_getresgid 211
-#define __NR_chown 212
-#define __NR_setuid 213
-#define __NR_setgid 214
-#define __NR_setfsuid 215
-#define __NR_setfsgid 216
-#define __NR_newfstatat 293
-
-#endif
+#include <uapi/asm/unistd.h>
-#ifdef __KERNEL__
#ifndef CONFIG_64BIT
#define __IGNORE_select
*/
#define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall")
-#endif /* __KERNEL__ */
#endif /* _ASM_S390_UNISTD_H_ */
# UAPI Header export list
include include/uapi/asm-generic/Kbuild.asm
+header-y += auxvec.h
+header-y += bitsperlong.h
+header-y += byteorder.h
+header-y += chpid.h
+header-y += chsc.h
+header-y += cmb.h
+header-y += dasd.h
+header-y += debug.h
+header-y += errno.h
+header-y += fcntl.h
+header-y += ioctl.h
+header-y += ioctls.h
+header-y += ipcbuf.h
+header-y += kvm.h
+header-y += kvm_para.h
+header-y += kvm_virtio.h
+header-y += mman.h
+header-y += monwriter.h
+header-y += msgbuf.h
+header-y += param.h
+header-y += poll.h
+header-y += posix_types.h
+header-y += ptrace.h
+header-y += qeth.h
+header-y += resource.h
+header-y += schid.h
+header-y += sembuf.h
+header-y += setup.h
+header-y += shmbuf.h
+header-y += sigcontext.h
+header-y += siginfo.h
+header-y += signal.h
+header-y += socket.h
+header-y += sockios.h
+header-y += stat.h
+header-y += statfs.h
+header-y += swab.h
+header-y += tape390.h
+header-y += termbits.h
+header-y += termios.h
+header-y += types.h
+header-y += ucontext.h
+header-y += unistd.h
+header-y += vtoc.h
+header-y += zcrypt.h
--- /dev/null
+/*
+ * Copyright IBM Corp. 2007
+ * Author(s): Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
+ */
+
+#ifndef _UAPI_ASM_S390_CHPID_H
+#define _UAPI_ASM_S390_CHPID_H
+
+#include <linux/string.h>
+#include <linux/types.h>
+
+#define __MAX_CHPID 255
+
+struct chp_id {
+ u8 reserved1;
+ u8 cssid;
+ u8 reserved2;
+ u8 id;
+} __attribute__((packed));
+
+
+#endif /* _UAPI_ASM_S390_CHPID_H */
/*
* ioctl interface for /dev/chsc
*
- * Copyright IBM Corp. 2008
+ * Copyright IBM Corp. 2008, 2012
* Author(s): Cornelia Huck <cornelia.huck@de.ibm.com>
*/
#define _ASM_CHSC_H
#include <linux/types.h>
+#include <linux/ioctl.h>
#include <asm/chpid.h>
#include <asm/schid.h>
+#define CHSC_SIZE 0x1000
+
struct chsc_async_header {
__u16 length;
__u16 code;
struct chsc_async_area {
struct chsc_async_header header;
- __u8 data[PAGE_SIZE - 16 /* size of chsc_async_header */];
+ __u8 data[CHSC_SIZE - sizeof(struct chsc_async_header)];
} __attribute__ ((packed));
-
struct chsc_response_struct {
__u16 length;
__u16 code;
__u32 parms;
- __u8 data[PAGE_SIZE - 8];
+ __u8 data[CHSC_SIZE - 2 * sizeof(__u16) - sizeof(__u32)];
} __attribute__ ((packed));
struct chsc_chp_cd {
--- /dev/null
+#ifndef _UAPIS390_CMB_H
+#define _UAPIS390_CMB_H
+
+#include <linux/types.h>
+
+/**
+ * struct cmbdata - channel measurement block data for user space
+ * @size: size of the stored data
+ * @elapsed_time: time since last sampling
+ * @ssch_rsch_count: number of ssch and rsch
+ * @sample_count: number of samples
+ * @device_connect_time: time of device connect
+ * @function_pending_time: time of function pending
+ * @device_disconnect_time: time of device disconnect
+ * @control_unit_queuing_time: time of control unit queuing
+ * @device_active_only_time: time of device active only
+ * @device_busy_time: time of device busy (ext. format)
+ * @initial_command_response_time: initial command response time (ext. format)
+ *
+ * All values are stored as 64 bit for simplicity, especially
+ * in 32 bit emulation mode. All time values are normalized to
+ * nanoseconds.
+ * Currently, two formats are known, which differ by the size of
+ * this structure, i.e. the last two members are only set when
+ * the extended channel measurement facility (first shipped in
+ * z990 machines) is activated.
+ * Potentially, more fields could be added, which would result in a
+ * new ioctl number.
+ */
+struct cmbdata {
+ __u64 size;
+ __u64 elapsed_time;
+ /* basic and exended format: */
+ __u64 ssch_rsch_count;
+ __u64 sample_count;
+ __u64 device_connect_time;
+ __u64 function_pending_time;
+ __u64 device_disconnect_time;
+ __u64 control_unit_queuing_time;
+ __u64 device_active_only_time;
+ /* extended format only: */
+ __u64 device_busy_time;
+ __u64 initial_command_response_time;
+};
+
+/* enable channel measurement */
+#define BIODASDCMFENABLE _IO(DASD_IOCTL_LETTER, 32)
+/* enable channel measurement */
+#define BIODASDCMFDISABLE _IO(DASD_IOCTL_LETTER, 33)
+/* read channel measurement data */
+#define BIODASDREADALLCMB _IOWR(DASD_IOCTL_LETTER, 33, struct cmbdata)
+
+#endif /* _UAPIS390_CMB_H */
--- /dev/null
+/*
+ * S/390 debug facility
+ *
+ * Copyright IBM Corp. 1999, 2000
+ */
+
+#ifndef _UAPIDEBUG_H
+#define _UAPIDEBUG_H
+
+#include <linux/fs.h>
+
+/* Note:
+ * struct __debug_entry must be defined outside of #ifdef __KERNEL__
+ * in order to allow a user program to analyze the 'raw'-view.
+ */
+
+struct __debug_entry{
+ union {
+ struct {
+ unsigned long long clock:52;
+ unsigned long long exception:1;
+ unsigned long long level:3;
+ unsigned long long cpuid:8;
+ } fields;
+
+ unsigned long long stck;
+ } id;
+ void* caller;
+} __attribute__((packed));
+
+
+#define __DEBUG_FEATURE_VERSION 2 /* version of debug feature */
+
+#endif /* _UAPIDEBUG_H */
--- /dev/null
+/*
+ * S390 version
+ *
+ * Derived from "include/asm-i386/mman.h"
+ */
+#include <asm-generic/mman.h>
--- /dev/null
+/*
+ * S390 version
+ * Copyright IBM Corp. 1999, 2000
+ * Author(s): Denis Joseph Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com)
+ */
+
+#ifndef _UAPI_S390_PTRACE_H
+#define _UAPI_S390_PTRACE_H
+
+/*
+ * Offsets in the user_regs_struct. They are used for the ptrace
+ * system call and in entry.S
+ */
+#ifndef __s390x__
+
+#define PT_PSWMASK 0x00
+#define PT_PSWADDR 0x04
+#define PT_GPR0 0x08
+#define PT_GPR1 0x0C
+#define PT_GPR2 0x10
+#define PT_GPR3 0x14
+#define PT_GPR4 0x18
+#define PT_GPR5 0x1C
+#define PT_GPR6 0x20
+#define PT_GPR7 0x24
+#define PT_GPR8 0x28
+#define PT_GPR9 0x2C
+#define PT_GPR10 0x30
+#define PT_GPR11 0x34
+#define PT_GPR12 0x38
+#define PT_GPR13 0x3C
+#define PT_GPR14 0x40
+#define PT_GPR15 0x44
+#define PT_ACR0 0x48
+#define PT_ACR1 0x4C
+#define PT_ACR2 0x50
+#define PT_ACR3 0x54
+#define PT_ACR4 0x58
+#define PT_ACR5 0x5C
+#define PT_ACR6 0x60
+#define PT_ACR7 0x64
+#define PT_ACR8 0x68
+#define PT_ACR9 0x6C
+#define PT_ACR10 0x70
+#define PT_ACR11 0x74
+#define PT_ACR12 0x78
+#define PT_ACR13 0x7C
+#define PT_ACR14 0x80
+#define PT_ACR15 0x84
+#define PT_ORIGGPR2 0x88
+#define PT_FPC 0x90
+/*
+ * A nasty fact of life that the ptrace api
+ * only supports passing of longs.
+ */
+#define PT_FPR0_HI 0x98
+#define PT_FPR0_LO 0x9C
+#define PT_FPR1_HI 0xA0
+#define PT_FPR1_LO 0xA4
+#define PT_FPR2_HI 0xA8
+#define PT_FPR2_LO 0xAC
+#define PT_FPR3_HI 0xB0
+#define PT_FPR3_LO 0xB4
+#define PT_FPR4_HI 0xB8
+#define PT_FPR4_LO 0xBC
+#define PT_FPR5_HI 0xC0
+#define PT_FPR5_LO 0xC4
+#define PT_FPR6_HI 0xC8
+#define PT_FPR6_LO 0xCC
+#define PT_FPR7_HI 0xD0
+#define PT_FPR7_LO 0xD4
+#define PT_FPR8_HI 0xD8
+#define PT_FPR8_LO 0XDC
+#define PT_FPR9_HI 0xE0
+#define PT_FPR9_LO 0xE4
+#define PT_FPR10_HI 0xE8
+#define PT_FPR10_LO 0xEC
+#define PT_FPR11_HI 0xF0
+#define PT_FPR11_LO 0xF4
+#define PT_FPR12_HI 0xF8
+#define PT_FPR12_LO 0xFC
+#define PT_FPR13_HI 0x100
+#define PT_FPR13_LO 0x104
+#define PT_FPR14_HI 0x108
+#define PT_FPR14_LO 0x10C
+#define PT_FPR15_HI 0x110
+#define PT_FPR15_LO 0x114
+#define PT_CR_9 0x118
+#define PT_CR_10 0x11C
+#define PT_CR_11 0x120
+#define PT_IEEE_IP 0x13C
+#define PT_LASTOFF PT_IEEE_IP
+#define PT_ENDREGS 0x140-1
+
+#define GPR_SIZE 4
+#define CR_SIZE 4
+
+#define STACK_FRAME_OVERHEAD 96 /* size of minimum stack frame */
+
+#else /* __s390x__ */
+
+#define PT_PSWMASK 0x00
+#define PT_PSWADDR 0x08
+#define PT_GPR0 0x10
+#define PT_GPR1 0x18
+#define PT_GPR2 0x20
+#define PT_GPR3 0x28
+#define PT_GPR4 0x30
+#define PT_GPR5 0x38
+#define PT_GPR6 0x40
+#define PT_GPR7 0x48
+#define PT_GPR8 0x50
+#define PT_GPR9 0x58
+#define PT_GPR10 0x60
+#define PT_GPR11 0x68
+#define PT_GPR12 0x70
+#define PT_GPR13 0x78
+#define PT_GPR14 0x80
+#define PT_GPR15 0x88
+#define PT_ACR0 0x90
+#define PT_ACR1 0x94
+#define PT_ACR2 0x98
+#define PT_ACR3 0x9C
+#define PT_ACR4 0xA0
+#define PT_ACR5 0xA4
+#define PT_ACR6 0xA8
+#define PT_ACR7 0xAC
+#define PT_ACR8 0xB0
+#define PT_ACR9 0xB4
+#define PT_ACR10 0xB8
+#define PT_ACR11 0xBC
+#define PT_ACR12 0xC0
+#define PT_ACR13 0xC4
+#define PT_ACR14 0xC8
+#define PT_ACR15 0xCC
+#define PT_ORIGGPR2 0xD0
+#define PT_FPC 0xD8
+#define PT_FPR0 0xE0
+#define PT_FPR1 0xE8
+#define PT_FPR2 0xF0
+#define PT_FPR3 0xF8
+#define PT_FPR4 0x100
+#define PT_FPR5 0x108
+#define PT_FPR6 0x110
+#define PT_FPR7 0x118
+#define PT_FPR8 0x120
+#define PT_FPR9 0x128
+#define PT_FPR10 0x130
+#define PT_FPR11 0x138
+#define PT_FPR12 0x140
+#define PT_FPR13 0x148
+#define PT_FPR14 0x150
+#define PT_FPR15 0x158
+#define PT_CR_9 0x160
+#define PT_CR_10 0x168
+#define PT_CR_11 0x170
+#define PT_IEEE_IP 0x1A8
+#define PT_LASTOFF PT_IEEE_IP
+#define PT_ENDREGS 0x1B0-1
+
+#define GPR_SIZE 8
+#define CR_SIZE 8
+
+#define STACK_FRAME_OVERHEAD 160 /* size of minimum stack frame */
+
+#endif /* __s390x__ */
+
+#define NUM_GPRS 16
+#define NUM_FPRS 16
+#define NUM_CRS 16
+#define NUM_ACRS 16
+
+#define NUM_CR_WORDS 3
+
+#define FPR_SIZE 8
+#define FPC_SIZE 4
+#define FPC_PAD_SIZE 4 /* gcc insists on aligning the fpregs */
+#define ACR_SIZE 4
+
+
+#define PTRACE_OLDSETOPTIONS 21
+
+#ifndef __ASSEMBLY__
+#include <linux/stddef.h>
+#include <linux/types.h>
+
+typedef union
+{
+ float f;
+ double d;
+ __u64 ui;
+ struct
+ {
+ __u32 hi;
+ __u32 lo;
+ } fp;
+} freg_t;
+
+typedef struct
+{
+ __u32 fpc;
+ freg_t fprs[NUM_FPRS];
+} s390_fp_regs;
+
+#define FPC_EXCEPTION_MASK 0xF8000000
+#define FPC_FLAGS_MASK 0x00F80000
+#define FPC_DXC_MASK 0x0000FF00
+#define FPC_RM_MASK 0x00000003
+#define FPC_VALID_MASK 0xF8F8FF03
+
+/* this typedef defines how a Program Status Word looks like */
+typedef struct
+{
+ unsigned long mask;
+ unsigned long addr;
+} __attribute__ ((aligned(8))) psw_t;
+
+typedef struct
+{
+ __u32 mask;
+ __u32 addr;
+} __attribute__ ((aligned(8))) psw_compat_t;
+
+#ifndef __s390x__
+
+#define PSW_MASK_PER 0x40000000UL
+#define PSW_MASK_DAT 0x04000000UL
+#define PSW_MASK_IO 0x02000000UL
+#define PSW_MASK_EXT 0x01000000UL
+#define PSW_MASK_KEY 0x00F00000UL
+#define PSW_MASK_BASE 0x00080000UL /* always one */
+#define PSW_MASK_MCHECK 0x00040000UL
+#define PSW_MASK_WAIT 0x00020000UL
+#define PSW_MASK_PSTATE 0x00010000UL
+#define PSW_MASK_ASC 0x0000C000UL
+#define PSW_MASK_CC 0x00003000UL
+#define PSW_MASK_PM 0x00000F00UL
+#define PSW_MASK_RI 0x00000000UL
+#define PSW_MASK_EA 0x00000000UL
+#define PSW_MASK_BA 0x00000000UL
+
+#define PSW_MASK_USER 0x00003F00UL
+
+#define PSW_ADDR_AMODE 0x80000000UL
+#define PSW_ADDR_INSN 0x7FFFFFFFUL
+
+#define PSW_DEFAULT_KEY (((unsigned long) PAGE_DEFAULT_ACC) << 20)
+
+#define PSW_ASC_PRIMARY 0x00000000UL
+#define PSW_ASC_ACCREG 0x00004000UL
+#define PSW_ASC_SECONDARY 0x00008000UL
+#define PSW_ASC_HOME 0x0000C000UL
+
+#else /* __s390x__ */
+
+#define PSW_MASK_PER 0x4000000000000000UL
+#define PSW_MASK_DAT 0x0400000000000000UL
+#define PSW_MASK_IO 0x0200000000000000UL
+#define PSW_MASK_EXT 0x0100000000000000UL
+#define PSW_MASK_BASE 0x0000000000000000UL
+#define PSW_MASK_KEY 0x00F0000000000000UL
+#define PSW_MASK_MCHECK 0x0004000000000000UL
+#define PSW_MASK_WAIT 0x0002000000000000UL
+#define PSW_MASK_PSTATE 0x0001000000000000UL
+#define PSW_MASK_ASC 0x0000C00000000000UL
+#define PSW_MASK_CC 0x0000300000000000UL
+#define PSW_MASK_PM 0x00000F0000000000UL
+#define PSW_MASK_RI 0x0000008000000000UL
+#define PSW_MASK_EA 0x0000000100000000UL
+#define PSW_MASK_BA 0x0000000080000000UL
+
+#define PSW_MASK_USER 0x00003F8180000000UL
+
+#define PSW_ADDR_AMODE 0x0000000000000000UL
+#define PSW_ADDR_INSN 0xFFFFFFFFFFFFFFFFUL
+
+#define PSW_DEFAULT_KEY (((unsigned long) PAGE_DEFAULT_ACC) << 52)
+
+#define PSW_ASC_PRIMARY 0x0000000000000000UL
+#define PSW_ASC_ACCREG 0x0000400000000000UL
+#define PSW_ASC_SECONDARY 0x0000800000000000UL
+#define PSW_ASC_HOME 0x0000C00000000000UL
+
+#endif /* __s390x__ */
+
+
+/*
+ * The s390_regs structure is used to define the elf_gregset_t.
+ */
+typedef struct
+{
+ psw_t psw;
+ unsigned long gprs[NUM_GPRS];
+ unsigned int acrs[NUM_ACRS];
+ unsigned long orig_gpr2;
+} s390_regs;
+
+typedef struct
+{
+ psw_compat_t psw;
+ __u32 gprs[NUM_GPRS];
+ __u32 acrs[NUM_ACRS];
+ __u32 orig_gpr2;
+} s390_compat_regs;
+
+typedef struct
+{
+ __u32 gprs_high[NUM_GPRS];
+} s390_compat_regs_high;
+
+
+/*
+ * Now for the user space program event recording (trace) definitions.
+ * The following structures are used only for the ptrace interface, don't
+ * touch or even look at it if you don't want to modify the user-space
+ * ptrace interface. In particular stay away from it for in-kernel PER.
+ */
+typedef struct
+{
+ unsigned long cr[NUM_CR_WORDS];
+} per_cr_words;
+
+#define PER_EM_MASK 0xE8000000UL
+
+typedef struct
+{
+#ifdef __s390x__
+ unsigned : 32;
+#endif /* __s390x__ */
+ unsigned em_branching : 1;
+ unsigned em_instruction_fetch : 1;
+ /*
+ * Switching on storage alteration automatically fixes
+ * the storage alteration event bit in the users std.
+ */
+ unsigned em_storage_alteration : 1;
+ unsigned em_gpr_alt_unused : 1;
+ unsigned em_store_real_address : 1;
+ unsigned : 3;
+ unsigned branch_addr_ctl : 1;
+ unsigned : 1;
+ unsigned storage_alt_space_ctl : 1;
+ unsigned : 21;
+ unsigned long starting_addr;
+ unsigned long ending_addr;
+} per_cr_bits;
+
+typedef struct
+{
+ unsigned short perc_atmid;
+ unsigned long address;
+ unsigned char access_id;
+} per_lowcore_words;
+
+typedef struct
+{
+ unsigned perc_branching : 1;
+ unsigned perc_instruction_fetch : 1;
+ unsigned perc_storage_alteration : 1;
+ unsigned perc_gpr_alt_unused : 1;
+ unsigned perc_store_real_address : 1;
+ unsigned : 3;
+ unsigned atmid_psw_bit_31 : 1;
+ unsigned atmid_validity_bit : 1;
+ unsigned atmid_psw_bit_32 : 1;
+ unsigned atmid_psw_bit_5 : 1;
+ unsigned atmid_psw_bit_16 : 1;
+ unsigned atmid_psw_bit_17 : 1;
+ unsigned si : 2;
+ unsigned long address;
+ unsigned : 4;
+ unsigned access_id : 4;
+} per_lowcore_bits;
+
+typedef struct
+{
+ union {
+ per_cr_words words;
+ per_cr_bits bits;
+ } control_regs;
+ /*
+ * Use these flags instead of setting em_instruction_fetch
+ * directly they are used so that single stepping can be
+ * switched on & off while not affecting other tracing
+ */
+ unsigned single_step : 1;
+ unsigned instruction_fetch : 1;
+ unsigned : 30;
+ /*
+ * These addresses are copied into cr10 & cr11 if single
+ * stepping is switched off
+ */
+ unsigned long starting_addr;
+ unsigned long ending_addr;
+ union {
+ per_lowcore_words words;
+ per_lowcore_bits bits;
+ } lowcore;
+} per_struct;
+
+typedef struct
+{
+ unsigned int len;
+ unsigned long kernel_addr;
+ unsigned long process_addr;
+} ptrace_area;
+
+/*
+ * S/390 specific non posix ptrace requests. I chose unusual values so
+ * they are unlikely to clash with future ptrace definitions.
+ */
+#define PTRACE_PEEKUSR_AREA 0x5000
+#define PTRACE_POKEUSR_AREA 0x5001
+#define PTRACE_PEEKTEXT_AREA 0x5002
+#define PTRACE_PEEKDATA_AREA 0x5003
+#define PTRACE_POKETEXT_AREA 0x5004
+#define PTRACE_POKEDATA_AREA 0x5005
+#define PTRACE_GET_LAST_BREAK 0x5006
+#define PTRACE_PEEK_SYSTEM_CALL 0x5007
+#define PTRACE_POKE_SYSTEM_CALL 0x5008
+#define PTRACE_ENABLE_TE 0x5009
+#define PTRACE_DISABLE_TE 0x5010
+
+/*
+ * PT_PROT definition is loosely based on hppa bsd definition in
+ * gdb/hppab-nat.c
+ */
+#define PTRACE_PROT 21
+
+typedef enum
+{
+ ptprot_set_access_watchpoint,
+ ptprot_set_write_watchpoint,
+ ptprot_disable_watchpoint
+} ptprot_flags;
+
+typedef struct
+{
+ unsigned long lowaddr;
+ unsigned long hiaddr;
+ ptprot_flags prot;
+} ptprot_area;
+
+/* Sequence of bytes for breakpoint illegal instruction. */
+#define S390_BREAKPOINT {0x0,0x1}
+#define S390_BREAKPOINT_U16 ((__u16)0x0001)
+#define S390_SYSCALL_OPCODE ((__u16)0x0a00)
+#define S390_SYSCALL_SIZE 2
+
+/*
+ * The user_regs_struct defines the way the user registers are
+ * store on the stack for signal handling.
+ */
+struct user_regs_struct
+{
+ psw_t psw;
+ unsigned long gprs[NUM_GPRS];
+ unsigned int acrs[NUM_ACRS];
+ unsigned long orig_gpr2;
+ s390_fp_regs fp_regs;
+ /*
+ * These per registers are in here so that gdb can modify them
+ * itself as there is no "official" ptrace interface for hardware
+ * watchpoints. This is the way intel does it.
+ */
+ per_struct per_info;
+ unsigned long ieee_instruction_pointer; /* obsolete, always 0 */
+};
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* _UAPI_S390_PTRACE_H */
--- /dev/null
+#ifndef _UAPIASM_SCHID_H
+#define _UAPIASM_SCHID_H
+
+#include <linux/types.h>
+
+struct subchannel_id {
+ __u32 cssid : 8;
+ __u32 : 4;
+ __u32 m : 1;
+ __u32 ssid : 2;
+ __u32 one : 1;
+ __u32 sch_no : 16;
+} __attribute__ ((packed, aligned(4)));
+
+
+#endif /* _UAPIASM_SCHID_H */
--- /dev/null
+/*
+ * S390 version
+ * Copyright IBM Corp. 1999, 2010
+ */
+
+#ifndef _UAPI_ASM_S390_SETUP_H
+#define _UAPI_ASM_S390_SETUP_H
+
+#define COMMAND_LINE_SIZE 4096
+
+#define ARCH_COMMAND_LINE_SIZE 896
+
+#endif /* _UAPI_ASM_S390_SETUP_H */
--- /dev/null
+/*
+ * S390 version
+ *
+ * Derived from "include/asm-i386/signal.h"
+ */
+
+#ifndef _UAPI_ASMS390_SIGNAL_H
+#define _UAPI_ASMS390_SIGNAL_H
+
+#include <linux/types.h>
+#include <linux/time.h>
+
+/* Avoid too many header ordering problems. */
+struct siginfo;
+struct pt_regs;
+
+#ifndef __KERNEL__
+/* Here we must cater to libcs that poke about in kernel headers. */
+
+#define NSIG 32
+typedef unsigned long sigset_t;
+
+#endif /* __KERNEL__ */
+
+#define SIGHUP 1
+#define SIGINT 2
+#define SIGQUIT 3
+#define SIGILL 4
+#define SIGTRAP 5
+#define SIGABRT 6
+#define SIGIOT 6
+#define SIGBUS 7
+#define SIGFPE 8
+#define SIGKILL 9
+#define SIGUSR1 10
+#define SIGSEGV 11
+#define SIGUSR2 12
+#define SIGPIPE 13
+#define SIGALRM 14
+#define SIGTERM 15
+#define SIGSTKFLT 16
+#define SIGCHLD 17
+#define SIGCONT 18
+#define SIGSTOP 19
+#define SIGTSTP 20
+#define SIGTTIN 21
+#define SIGTTOU 22
+#define SIGURG 23
+#define SIGXCPU 24
+#define SIGXFSZ 25
+#define SIGVTALRM 26
+#define SIGPROF 27
+#define SIGWINCH 28
+#define SIGIO 29
+#define SIGPOLL SIGIO
+/*
+#define SIGLOST 29
+*/
+#define SIGPWR 30
+#define SIGSYS 31
+#define SIGUNUSED 31
+
+/* These should not be considered constants from userland. */
+#define SIGRTMIN 32
+#define SIGRTMAX _NSIG
+
+/*
+ * SA_FLAGS values:
+ *
+ * SA_ONSTACK indicates that a registered stack_t will be used.
+ * SA_RESTART flag to get restarting signals (which were the default long ago)
+ * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
+ * SA_RESETHAND clears the handler when the signal is delivered.
+ * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
+ * SA_NODEFER prevents the current signal from being masked in the handler.
+ *
+ * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
+ * Unix names RESETHAND and NODEFER respectively.
+ */
+#define SA_NOCLDSTOP 0x00000001
+#define SA_NOCLDWAIT 0x00000002
+#define SA_SIGINFO 0x00000004
+#define SA_ONSTACK 0x08000000
+#define SA_RESTART 0x10000000
+#define SA_NODEFER 0x40000000
+#define SA_RESETHAND 0x80000000
+
+#define SA_NOMASK SA_NODEFER
+#define SA_ONESHOT SA_RESETHAND
+
+#define SA_RESTORER 0x04000000
+
+/*
+ * sigaltstack controls
+ */
+#define SS_ONSTACK 1
+#define SS_DISABLE 2
+
+#define MINSIGSTKSZ 2048
+#define SIGSTKSZ 8192
+
+#include <asm-generic/signal-defs.h>
+
+#ifndef __KERNEL__
+/* Here we must cater to libcs that poke about in kernel headers. */
+
+struct sigaction {
+ union {
+ __sighandler_t _sa_handler;
+ void (*_sa_sigaction)(int, struct siginfo *, void *);
+ } _u;
+#ifndef __s390x__ /* lovely */
+ sigset_t sa_mask;
+ unsigned long sa_flags;
+ void (*sa_restorer)(void);
+#else /* __s390x__ */
+ unsigned long sa_flags;
+ void (*sa_restorer)(void);
+ sigset_t sa_mask;
+#endif /* __s390x__ */
+};
+
+#define sa_handler _u._sa_handler
+#define sa_sigaction _u._sa_sigaction
+
+#endif /* __KERNEL__ */
+
+typedef struct sigaltstack {
+ void __user *ss_sp;
+ int ss_flags;
+ size_t ss_size;
+} stack_t;
+
+
+#endif /* _UAPI_ASMS390_SIGNAL_H */
--- /dev/null
+/*
+ * S390 version
+ *
+ * Derived from "include/asm-i386/termios.h"
+ */
+
+#ifndef _UAPI_S390_TERMIOS_H
+#define _UAPI_S390_TERMIOS_H
+
+#include <asm/termbits.h>
+#include <asm/ioctls.h>
+
+struct winsize {
+ unsigned short ws_row;
+ unsigned short ws_col;
+ unsigned short ws_xpixel;
+ unsigned short ws_ypixel;
+};
+
+#define NCC 8
+struct termio {
+ unsigned short c_iflag; /* input mode flags */
+ unsigned short c_oflag; /* output mode flags */
+ unsigned short c_cflag; /* control mode flags */
+ unsigned short c_lflag; /* local mode flags */
+ unsigned char c_line; /* line discipline */
+ unsigned char c_cc[NCC]; /* control characters */
+};
+
+/* modem lines */
+#define TIOCM_LE 0x001
+#define TIOCM_DTR 0x002
+#define TIOCM_RTS 0x004
+#define TIOCM_ST 0x008
+#define TIOCM_SR 0x010
+#define TIOCM_CTS 0x020
+#define TIOCM_CAR 0x040
+#define TIOCM_RNG 0x080
+#define TIOCM_DSR 0x100
+#define TIOCM_CD TIOCM_CAR
+#define TIOCM_RI TIOCM_RNG
+#define TIOCM_OUT1 0x2000
+#define TIOCM_OUT2 0x4000
+#define TIOCM_LOOP 0x8000
+
+/* ioctl (fd, TIOCSERGETLSR, &result) where result may be as below */
+
+
+#endif /* _UAPI_S390_TERMIOS_H */
--- /dev/null
+/*
+ * S390 version
+ *
+ * Derived from "include/asm-i386/types.h"
+ */
+
+#ifndef _UAPI_S390_TYPES_H
+#define _UAPI_S390_TYPES_H
+
+#include <asm-generic/int-ll64.h>
+
+#ifndef __ASSEMBLY__
+
+/* A address type so that arithmetic can be done on it & it can be upgraded to
+ 64 bit when necessary
+*/
+typedef unsigned long addr_t;
+typedef __signed__ long saddr_t;
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* _UAPI_S390_TYPES_H */
--- /dev/null
+/*
+ * S390 version
+ *
+ * Derived from "include/asm-i386/unistd.h"
+ */
+
+#ifndef _UAPI_ASM_S390_UNISTD_H_
+#define _UAPI_ASM_S390_UNISTD_H_
+
+/*
+ * This file contains the system call numbers.
+ */
+
+#define __NR_exit 1
+#define __NR_fork 2
+#define __NR_read 3
+#define __NR_write 4
+#define __NR_open 5
+#define __NR_close 6
+#define __NR_restart_syscall 7
+#define __NR_creat 8
+#define __NR_link 9
+#define __NR_unlink 10
+#define __NR_execve 11
+#define __NR_chdir 12
+#define __NR_mknod 14
+#define __NR_chmod 15
+#define __NR_lseek 19
+#define __NR_getpid 20
+#define __NR_mount 21
+#define __NR_umount 22
+#define __NR_ptrace 26
+#define __NR_alarm 27
+#define __NR_pause 29
+#define __NR_utime 30
+#define __NR_access 33
+#define __NR_nice 34
+#define __NR_sync 36
+#define __NR_kill 37
+#define __NR_rename 38
+#define __NR_mkdir 39
+#define __NR_rmdir 40
+#define __NR_dup 41
+#define __NR_pipe 42
+#define __NR_times 43
+#define __NR_brk 45
+#define __NR_signal 48
+#define __NR_acct 51
+#define __NR_umount2 52
+#define __NR_ioctl 54
+#define __NR_fcntl 55
+#define __NR_setpgid 57
+#define __NR_umask 60
+#define __NR_chroot 61
+#define __NR_ustat 62
+#define __NR_dup2 63
+#define __NR_getppid 64
+#define __NR_getpgrp 65
+#define __NR_setsid 66
+#define __NR_sigaction 67
+#define __NR_sigsuspend 72
+#define __NR_sigpending 73
+#define __NR_sethostname 74
+#define __NR_setrlimit 75
+#define __NR_getrusage 77
+#define __NR_gettimeofday 78
+#define __NR_settimeofday 79
+#define __NR_symlink 83
+#define __NR_readlink 85
+#define __NR_uselib 86
+#define __NR_swapon 87
+#define __NR_reboot 88
+#define __NR_readdir 89
+#define __NR_mmap 90
+#define __NR_munmap 91
+#define __NR_truncate 92
+#define __NR_ftruncate 93
+#define __NR_fchmod 94
+#define __NR_getpriority 96
+#define __NR_setpriority 97
+#define __NR_statfs 99
+#define __NR_fstatfs 100
+#define __NR_socketcall 102
+#define __NR_syslog 103
+#define __NR_setitimer 104
+#define __NR_getitimer 105
+#define __NR_stat 106
+#define __NR_lstat 107
+#define __NR_fstat 108
+#define __NR_lookup_dcookie 110
+#define __NR_vhangup 111
+#define __NR_idle 112
+#define __NR_wait4 114
+#define __NR_swapoff 115
+#define __NR_sysinfo 116
+#define __NR_ipc 117
+#define __NR_fsync 118
+#define __NR_sigreturn 119
+#define __NR_clone 120
+#define __NR_setdomainname 121
+#define __NR_uname 122
+#define __NR_adjtimex 124
+#define __NR_mprotect 125
+#define __NR_sigprocmask 126
+#define __NR_create_module 127
+#define __NR_init_module 128
+#define __NR_delete_module 129
+#define __NR_get_kernel_syms 130
+#define __NR_quotactl 131
+#define __NR_getpgid 132
+#define __NR_fchdir 133
+#define __NR_bdflush 134
+#define __NR_sysfs 135
+#define __NR_personality 136
+#define __NR_afs_syscall 137 /* Syscall for Andrew File System */
+#define __NR_getdents 141
+#define __NR_flock 143
+#define __NR_msync 144
+#define __NR_readv 145
+#define __NR_writev 146
+#define __NR_getsid 147
+#define __NR_fdatasync 148
+#define __NR__sysctl 149
+#define __NR_mlock 150
+#define __NR_munlock 151
+#define __NR_mlockall 152
+#define __NR_munlockall 153
+#define __NR_sched_setparam 154
+#define __NR_sched_getparam 155
+#define __NR_sched_setscheduler 156
+#define __NR_sched_getscheduler 157
+#define __NR_sched_yield 158
+#define __NR_sched_get_priority_max 159
+#define __NR_sched_get_priority_min 160
+#define __NR_sched_rr_get_interval 161
+#define __NR_nanosleep 162
+#define __NR_mremap 163
+#define __NR_query_module 167
+#define __NR_poll 168
+#define __NR_nfsservctl 169
+#define __NR_prctl 172
+#define __NR_rt_sigreturn 173
+#define __NR_rt_sigaction 174
+#define __NR_rt_sigprocmask 175
+#define __NR_rt_sigpending 176
+#define __NR_rt_sigtimedwait 177
+#define __NR_rt_sigqueueinfo 178
+#define __NR_rt_sigsuspend 179
+#define __NR_pread64 180
+#define __NR_pwrite64 181
+#define __NR_getcwd 183
+#define __NR_capget 184
+#define __NR_capset 185
+#define __NR_sigaltstack 186
+#define __NR_sendfile 187
+#define __NR_getpmsg 188
+#define __NR_putpmsg 189
+#define __NR_vfork 190
+#define __NR_pivot_root 217
+#define __NR_mincore 218
+#define __NR_madvise 219
+#define __NR_getdents64 220
+#define __NR_readahead 222
+#define __NR_setxattr 224
+#define __NR_lsetxattr 225
+#define __NR_fsetxattr 226
+#define __NR_getxattr 227
+#define __NR_lgetxattr 228
+#define __NR_fgetxattr 229
+#define __NR_listxattr 230
+#define __NR_llistxattr 231
+#define __NR_flistxattr 232
+#define __NR_removexattr 233
+#define __NR_lremovexattr 234
+#define __NR_fremovexattr 235
+#define __NR_gettid 236
+#define __NR_tkill 237
+#define __NR_futex 238
+#define __NR_sched_setaffinity 239
+#define __NR_sched_getaffinity 240
+#define __NR_tgkill 241
+/* Number 242 is reserved for tux */
+#define __NR_io_setup 243
+#define __NR_io_destroy 244
+#define __NR_io_getevents 245
+#define __NR_io_submit 246
+#define __NR_io_cancel 247
+#define __NR_exit_group 248
+#define __NR_epoll_create 249
+#define __NR_epoll_ctl 250
+#define __NR_epoll_wait 251
+#define __NR_set_tid_address 252
+#define __NR_fadvise64 253
+#define __NR_timer_create 254
+#define __NR_timer_settime (__NR_timer_create+1)
+#define __NR_timer_gettime (__NR_timer_create+2)
+#define __NR_timer_getoverrun (__NR_timer_create+3)
+#define __NR_timer_delete (__NR_timer_create+4)
+#define __NR_clock_settime (__NR_timer_create+5)
+#define __NR_clock_gettime (__NR_timer_create+6)
+#define __NR_clock_getres (__NR_timer_create+7)
+#define __NR_clock_nanosleep (__NR_timer_create+8)
+/* Number 263 is reserved for vserver */
+#define __NR_statfs64 265
+#define __NR_fstatfs64 266
+#define __NR_remap_file_pages 267
+/* Number 268 is reserved for new sys_mbind */
+/* Number 269 is reserved for new sys_get_mempolicy */
+/* Number 270 is reserved for new sys_set_mempolicy */
+#define __NR_mq_open 271
+#define __NR_mq_unlink 272
+#define __NR_mq_timedsend 273
+#define __NR_mq_timedreceive 274
+#define __NR_mq_notify 275
+#define __NR_mq_getsetattr 276
+#define __NR_kexec_load 277
+#define __NR_add_key 278
+#define __NR_request_key 279
+#define __NR_keyctl 280
+#define __NR_waitid 281
+#define __NR_ioprio_set 282
+#define __NR_ioprio_get 283
+#define __NR_inotify_init 284
+#define __NR_inotify_add_watch 285
+#define __NR_inotify_rm_watch 286
+/* Number 287 is reserved for new sys_migrate_pages */
+#define __NR_openat 288
+#define __NR_mkdirat 289
+#define __NR_mknodat 290
+#define __NR_fchownat 291
+#define __NR_futimesat 292
+#define __NR_unlinkat 294
+#define __NR_renameat 295
+#define __NR_linkat 296
+#define __NR_symlinkat 297
+#define __NR_readlinkat 298
+#define __NR_fchmodat 299
+#define __NR_faccessat 300
+#define __NR_pselect6 301
+#define __NR_ppoll 302
+#define __NR_unshare 303
+#define __NR_set_robust_list 304
+#define __NR_get_robust_list 305
+#define __NR_splice 306
+#define __NR_sync_file_range 307
+#define __NR_tee 308
+#define __NR_vmsplice 309
+/* Number 310 is reserved for new sys_move_pages */
+#define __NR_getcpu 311
+#define __NR_epoll_pwait 312
+#define __NR_utimes 313
+#define __NR_fallocate 314
+#define __NR_utimensat 315
+#define __NR_signalfd 316
+#define __NR_timerfd 317
+#define __NR_eventfd 318
+#define __NR_timerfd_create 319
+#define __NR_timerfd_settime 320
+#define __NR_timerfd_gettime 321
+#define __NR_signalfd4 322
+#define __NR_eventfd2 323
+#define __NR_inotify_init1 324
+#define __NR_pipe2 325
+#define __NR_dup3 326
+#define __NR_epoll_create1 327
+#define __NR_preadv 328
+#define __NR_pwritev 329
+#define __NR_rt_tgsigqueueinfo 330
+#define __NR_perf_event_open 331
+#define __NR_fanotify_init 332
+#define __NR_fanotify_mark 333
+#define __NR_prlimit64 334
+#define __NR_name_to_handle_at 335
+#define __NR_open_by_handle_at 336
+#define __NR_clock_adjtime 337
+#define __NR_syncfs 338
+#define __NR_setns 339
+#define __NR_process_vm_readv 340
+#define __NR_process_vm_writev 341
+#define __NR_s390_runtime_instr 342
+#define __NR_kcmp 343
+#define NR_syscalls 344
+
+/*
+ * There are some system calls that are not present on 64 bit, some
+ * have a different name although they do the same (e.g. __NR_chown32
+ * is __NR_chown on 64 bit).
+ */
+#ifndef __s390x__
+
+#define __NR_time 13
+#define __NR_lchown 16
+#define __NR_setuid 23
+#define __NR_getuid 24
+#define __NR_stime 25
+#define __NR_setgid 46
+#define __NR_getgid 47
+#define __NR_geteuid 49
+#define __NR_getegid 50
+#define __NR_setreuid 70
+#define __NR_setregid 71
+#define __NR_getrlimit 76
+#define __NR_getgroups 80
+#define __NR_setgroups 81
+#define __NR_fchown 95
+#define __NR_ioperm 101
+#define __NR_setfsuid 138
+#define __NR_setfsgid 139
+#define __NR__llseek 140
+#define __NR__newselect 142
+#define __NR_setresuid 164
+#define __NR_getresuid 165
+#define __NR_setresgid 170
+#define __NR_getresgid 171
+#define __NR_chown 182
+#define __NR_ugetrlimit 191 /* SuS compliant getrlimit */
+#define __NR_mmap2 192
+#define __NR_truncate64 193
+#define __NR_ftruncate64 194
+#define __NR_stat64 195
+#define __NR_lstat64 196
+#define __NR_fstat64 197
+#define __NR_lchown32 198
+#define __NR_getuid32 199
+#define __NR_getgid32 200
+#define __NR_geteuid32 201
+#define __NR_getegid32 202
+#define __NR_setreuid32 203
+#define __NR_setregid32 204
+#define __NR_getgroups32 205
+#define __NR_setgroups32 206
+#define __NR_fchown32 207
+#define __NR_setresuid32 208
+#define __NR_getresuid32 209
+#define __NR_setresgid32 210
+#define __NR_getresgid32 211
+#define __NR_chown32 212
+#define __NR_setuid32 213
+#define __NR_setgid32 214
+#define __NR_setfsuid32 215
+#define __NR_setfsgid32 216
+#define __NR_fcntl64 221
+#define __NR_sendfile64 223
+#define __NR_fadvise64_64 264
+#define __NR_fstatat64 293
+
+#else
+
+#define __NR_select 142
+#define __NR_getrlimit 191 /* SuS compliant getrlimit */
+#define __NR_lchown 198
+#define __NR_getuid 199
+#define __NR_getgid 200
+#define __NR_geteuid 201
+#define __NR_getegid 202
+#define __NR_setreuid 203
+#define __NR_setregid 204
+#define __NR_getgroups 205
+#define __NR_setgroups 206
+#define __NR_fchown 207
+#define __NR_setresuid 208
+#define __NR_getresuid 209
+#define __NR_setresgid 210
+#define __NR_getresgid 211
+#define __NR_chown 212
+#define __NR_setuid 213
+#define __NR_setgid 214
+#define __NR_setfsuid 215
+#define __NR_setfsgid 216
+#define __NR_newfstatat 293
+
+#endif
+
+#endif /* _UAPI_ASM_S390_UNISTD_H_ */
ARRAY_SIZE(S390_lowcore.stfle_fac_list));
}
-static noinline __init void setup_hpage(void)
-{
- if (!test_facility(2) || !test_facility(8))
- return;
- S390_lowcore.machine_flags |= MACHINE_FLAG_HPAGE;
- __ctl_set_bit(0, 23);
-}
-
static __init void detect_mvpg(void)
{
#ifndef CONFIG_64BIT
static __init void detect_machine_facilities(void)
{
#ifdef CONFIG_64BIT
+ if (test_facility(8)) {
+ S390_lowcore.machine_flags |= MACHINE_FLAG_EDAT1;
+ __ctl_set_bit(0, 23);
+ }
+ if (test_facility(78))
+ S390_lowcore.machine_flags |= MACHINE_FLAG_EDAT2;
if (test_facility(3))
S390_lowcore.machine_flags |= MACHINE_FLAG_IDTE;
- if (test_facility(8))
- S390_lowcore.machine_flags |= MACHINE_FLAG_PFMF;
if (test_facility(27))
S390_lowcore.machine_flags |= MACHINE_FLAG_MVCOS;
if (test_facility(40))
detect_diag9c();
detect_diag44();
detect_machine_facilities();
- setup_hpage();
setup_topology();
sclp_facilities_detect();
detect_memory_layout(memory_chunk);
jno sysc_return
lmg %r2,%r7,__PT_R2(%r11) # load svc arguments
lghi %r8,0 # svc 0 returns -ENOSYS
- lh %r1,__PT_INT_CODE+2(%r11) # load new svc number
+ llgh %r1,__PT_INT_CODE+2(%r11) # load new svc number
cghi %r1,NR_syscalls
jnl sysc_nr_ok # invalid svc number -> do svc 0
slag %r8,%r1,2
.long 0x02000370,0x60000050 # the channel program the PSW
.long 0x020003c0,0x60000050 # at location 0 is loaded.
.long 0x02000410,0x60000050 # Initial processing starts
- .long 0x02000460,0x60000050 # at 0xf0 = iplstart.
+ .long 0x02000460,0x60000050 # at 0x200 = iplstart.
.long 0x020004b0,0x60000050
.long 0x02000500,0x60000050
.long 0x02000550,0x60000050
.long 0x02000690,0x60000050
.long 0x020006e0,0x20000050
- .org 0xf0
+ .org 0x200
+#
+# subroutine to set architecture mode
+#
+.Lsetmode:
+#ifdef CONFIG_64BIT
+ mvi __LC_AR_MODE_ID,1 # set esame flag
+ slr %r0,%r0 # set cpuid to zero
+ lhi %r1,2 # mode 2 = esame (dump)
+ sigp %r1,%r0,0x12 # switch to esame mode
+ bras %r13,0f
+ .fill 16,4,0x0
+0: lmh %r0,%r15,0(%r13) # clear high-order half of gprs
+ sam31 # switch to 31 bit addressing mode
+#else
+ mvi __LC_AR_MODE_ID,0 # set ESA flag (mode 0)
+#endif
+ br %r14
+
+#
+# subroutine to wait for end I/O
+#
+.Lirqwait:
+#ifdef CONFIG_64BIT
+ mvc 0x1f0(16),.Lnewpsw # set up IO interrupt psw
+ lpsw .Lwaitpsw
+.Lioint:
+ br %r14
+ .align 8
+.Lnewpsw:
+ .quad 0x0000000080000000,.Lioint
+#else
+ mvc 0x78(8),.Lnewpsw # set up IO interrupt psw
+ lpsw .Lwaitpsw
+.Lioint:
+ br %r14
+ .align 8
+.Lnewpsw:
+ .long 0x00080000,0x80000000+.Lioint
+#endif
+.Lwaitpsw:
+ .long 0x020a0000,0x80000000+.Lioint
+
#
# subroutine for loading cards from the reader
#
.Lloader:
+ la %r4,0(%r14)
la %r3,.Lorb # r2 = address of orb into r2
la %r5,.Lirb # r4 = address of irb
la %r6,.Lccws
ssch 0(%r3) # load chunk of 1600 bytes
bnz .Llderr
.Lwait4irq:
- mvc 0x78(8),.Lnewpsw # set up IO interrupt psw
- lpsw .Lwaitpsw
-.Lioint:
+ bas %r14,.Lirqwait
c %r1,0xb8 # compare subchannel number
bne .Lwait4irq
tsch 0(%r5)
sr %r0,%r3 # #ccws*80-residual=#bytes read
ar %r2,%r0
- br %r14 # r2 contains the total size
+ br %r4 # r2 contains the total size
.Lcont:
ahi %r2,0x640 # add 0x640 to total size
.Lloadp:.long 0,0
.align 8
.Lcrash:.long 0x000a0000,0x00000000
-.Lnewpsw:
- .long 0x00080000,0x80000000+.Lioint
-.Lwaitpsw:
- .long 0x020a0000,0x80000000+.Lioint
.align 8
.Lccws: .rept 19
.long 0x02200050,0x00000000
iplstart:
+ bas %r14,.Lsetmode # Immediately switch to 64 bit mode
lh %r1,0xb8 # test if subchannel number
bct %r1,.Lnoload # is valid
l %r1,0xb8 # load ipl subchannel number
#
# reset files in VM reader
#
- stidp __LC_SAVE_AREA_SYNC # store cpuid
- tm __LC_SAVE_AREA_SYNC,0xff# running VM ?
+ stidp .Lcpuid # store cpuid
+ tm .Lcpuid,0xff # running VM ?
bno .Lnoreset
la %r2,.Lreset
lhi %r3,26
tm 31(%r5),0xff # bits is set in the schib
bz .Lnoreset
.Lwaitforirq:
- mvc 0x78(8),.Lrdrnewpsw # set up IO interrupt psw
-.Lwaitrdrirq:
- lpsw .Lrdrwaitpsw
-.Lrdrint:
+ bas %r14,.Lirqwait # wait for IO interrupt
c %r1,0xb8 # compare subchannel number
- bne .Lwaitrdrirq
+ bne .Lwaitforirq
la %r5,.Lirb
tsch 0(%r5)
.Lnoreset:
b .Lnoload
- .align 8
-.Lrdrnewpsw:
- .long 0x00080000,0x80000000+.Lrdrint
-.Lrdrwaitpsw:
- .long 0x020a0000,0x80000000+.Lrdrint
-
#
# everything loaded, go for it
#
.byte 0xc8,0xd6,0xd3,0xc4 # "change rdr all keep nohold"
.L_eof: .long 0xc5d6c600 /* C'EOF' */
.L_hdr: .long 0xc8c4d900 /* C'HDR' */
+ .align 8
+.Lcpuid:.fill 8,1,0
#
# SALIPL loader support. Based on a patch by Rob van der Heij.
.org 0x800
ENTRY(start)
stm %r0,%r15,0x07b0 # store registers
+ bas %r14,.Lsetmode # Immediately switch to 64 bit mode
basr %r12,%r0
.base:
l %r11,.parm
ENTRY(startup_kdump)
j .Lep_startup_kdump
.Lep_startup_normal:
+#ifdef CONFIG_64BIT
+ mvi __LC_AR_MODE_ID,1 # set esame flag
+ slr %r0,%r0 # set cpuid to zero
+ lhi %r1,2 # mode 2 = esame (dump)
+ sigp %r1,%r0,0x12 # switch to esame mode
+ bras %r13,0f
+ .fill 16,4,0x0
+0: lmh %r0,%r15,0(%r13) # clear high-order half of gprs
+ sam31 # switch to 31 bit addressing mode
+#else
+ mvi __LC_AR_MODE_ID,0 # set ESA flag (mode 0)
+#endif
basr %r13,0 # get base
.LPG0:
xc 0x200(256),0x200 # partially clear lowcore
#endif
#ifdef CONFIG_64BIT
- mvi __LC_AR_MODE_ID,1 # set esame flag
- slr %r0,%r0 # set cpuid to zero
- lhi %r1,2 # mode 2 = esame (dump)
- sigp %r1,%r0,0x12 # switch to esame mode
+ /* Continue with 64bit startup code in head64.S */
sam64 # switch to 64 bit mode
- larl %r13,4f
- lmh %r0,%r15,0(%r13) # clear high-order half
jg startup_continue
-4: .fill 16,4,0x0
#else
- mvi __LC_AR_MODE_ID,0 # set ESA flag (mode 0)
+ /* Continue with 31bit startup code in head31.S */
l %r13,4f-.LPG0(%r13)
b 0(%r13)
.align 8
4: .long startup_continue
#endif
+
.align 8
5: .long 0x7fffffff,0xffffffff
ENTRY(_ehead)
-#ifdef CONFIG_SHARED_KERNEL
.org 0x100000 - 0x11000 # head.o ends at 0x11000
-#endif
-
#
# startup-code, running in absolute addressing mode
#
ENTRY(_ehead)
-#ifdef CONFIG_SHARED_KERNEL
.org 0x100000 - 0x11000 # head.o ends at 0x11000
-#endif
-
#
# startup-code, running in absolute addressing mode
#
#define PLT_ENTRY_SIZE 20
#endif /* CONFIG_64BIT */
+#ifdef CONFIG_64BIT
+void *module_alloc(unsigned long size)
+{
+ if (PAGE_ALIGN(size) > MODULES_LEN)
+ return NULL;
+ return __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END,
+ GFP_KERNEL, PAGE_KERNEL, -1,
+ __builtin_return_address(0));
+}
+#endif
+
/* Free memory returned from module_alloc */
void module_free(struct module *mod, void *module_region)
{
struct page *vmemmap;
EXPORT_SYMBOL(vmemmap);
+#ifdef CONFIG_64BIT
+unsigned long MODULES_VADDR;
+unsigned long MODULES_END;
+#endif
+
/* An array with a pointer to the lowcore of every CPU. */
struct _lowcore *lowcore_ptr[NR_CPUS];
EXPORT_SYMBOL(lowcore_ptr);
/* Choose kernel address space layout: 2, 3, or 4 levels. */
#ifdef CONFIG_64BIT
- vmalloc_size = VMALLOC_END ?: 128UL << 30;
+ vmalloc_size = VMALLOC_END ?: (128UL << 30) - MODULES_LEN;
tmp = (memory_end ?: real_memory_size) / PAGE_SIZE;
tmp = tmp * (sizeof(struct page) + PAGE_SIZE) + vmalloc_size;
if (tmp <= (1UL << 42))
vmax = 1UL << 42; /* 3-level kernel page table */
else
vmax = 1UL << 53; /* 4-level kernel page table */
+ /* module area is at the end of the kernel address space. */
+ MODULES_END = vmax;
+ MODULES_VADDR = MODULES_END - MODULES_LEN;
+ VMALLOC_END = MODULES_VADDR;
#else
vmalloc_size = VMALLOC_END ?: 96UL << 20;
vmax = 1UL << 31; /* 2-level kernel page table */
-#endif
/* vmalloc area is at the end of the kernel address space. */
VMALLOC_END = vmax;
+#endif
VMALLOC_START = vmax - vmalloc_size;
/* Split remaining virtual space between 1:1 mapping & vmemmap array */
#endif
}
+static void __init init_storage_keys(unsigned long start, unsigned long end)
+{
+ unsigned long boundary, function, size;
+
+ while (start < end) {
+ if (MACHINE_HAS_EDAT2) {
+ /* set storage keys for a 2GB frame */
+ function = 0x22000 | PAGE_DEFAULT_KEY;
+ size = 1UL << 31;
+ boundary = (start + size) & ~(size - 1);
+ if (boundary <= end) {
+ do {
+ start = pfmf(function, start);
+ } while (start < boundary);
+ continue;
+ }
+ }
+ if (MACHINE_HAS_EDAT1) {
+ /* set storage keys for a 1MB frame */
+ function = 0x21000 | PAGE_DEFAULT_KEY;
+ size = 1UL << 20;
+ boundary = (start + size) & ~(size - 1);
+ if (boundary <= end) {
+ do {
+ start = pfmf(function, start);
+ } while (start < boundary);
+ continue;
+ }
+ }
+ page_set_storage_key(start, PAGE_DEFAULT_KEY, 0);
+ start += PAGE_SIZE;
+ }
+}
+
static void __init setup_memory(void)
{
unsigned long bootmap_size;
memblock_add_node(PFN_PHYS(start_chunk),
PFN_PHYS(end_chunk - start_chunk), 0);
pfn = max(start_chunk, start_pfn);
- for (; pfn < end_chunk; pfn++)
- page_set_storage_key(PFN_PHYS(pfn),
- PAGE_DEFAULT_KEY, 0);
+ init_storage_keys(PFN_PHYS(pfn), PFN_PHYS(end_chunk));
}
psw_set_key(PAGE_DEFAULT_KEY);
obj-$(CONFIG_CMM) += cmm.o
obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o
obj-$(CONFIG_DEBUG_SET_MODULE_RONX) += pageattr.o
+obj-$(CONFIG_S390_PTDUMP) += dump_pagetables.o
--- /dev/null
+#include <linux/seq_file.h>
+#include <linux/debugfs.h>
+#include <linux/module.h>
+#include <linux/mm.h>
+#include <asm/sections.h>
+#include <asm/pgtable.h>
+
+static unsigned long max_addr;
+
+struct addr_marker {
+ unsigned long start_address;
+ const char *name;
+};
+
+enum address_markers_idx {
+ IDENTITY_NR = 0,
+ KERNEL_START_NR,
+ KERNEL_END_NR,
+ VMEMMAP_NR,
+ VMALLOC_NR,
+#ifdef CONFIG_64BIT
+ MODULES_NR,
+#endif
+};
+
+static struct addr_marker address_markers[] = {
+ [IDENTITY_NR] = {0, "Identity Mapping"},
+ [KERNEL_START_NR] = {(unsigned long)&_stext, "Kernel Image Start"},
+ [KERNEL_END_NR] = {(unsigned long)&_end, "Kernel Image End"},
+ [VMEMMAP_NR] = {0, "vmemmap Area"},
+ [VMALLOC_NR] = {0, "vmalloc Area"},
+#ifdef CONFIG_64BIT
+ [MODULES_NR] = {0, "Modules Area"},
+#endif
+ { -1, NULL }
+};
+
+struct pg_state {
+ int level;
+ unsigned int current_prot;
+ unsigned long start_address;
+ unsigned long current_address;
+ const struct addr_marker *marker;
+};
+
+static void print_prot(struct seq_file *m, unsigned int pr, int level)
+{
+ static const char * const level_name[] =
+ { "ASCE", "PGD", "PUD", "PMD", "PTE" };
+
+ seq_printf(m, "%s ", level_name[level]);
+ if (pr & _PAGE_INVALID)
+ seq_printf(m, "I\n");
+ else
+ seq_printf(m, "%s\n", pr & _PAGE_RO ? "RO" : "RW");
+}
+
+static void note_page(struct seq_file *m, struct pg_state *st,
+ unsigned int new_prot, int level)
+{
+ static const char units[] = "KMGTPE";
+ int width = sizeof(unsigned long) * 2;
+ const char *unit = units;
+ unsigned int prot, cur;
+ unsigned long delta;
+
+ /*
+ * If we have a "break" in the series, we need to flush the state
+ * that we have now. "break" is either changing perms, levels or
+ * address space marker.
+ */
+ prot = new_prot;
+ cur = st->current_prot;
+
+ if (!st->level) {
+ /* First entry */
+ st->current_prot = new_prot;
+ st->level = level;
+ st->marker = address_markers;
+ seq_printf(m, "---[ %s ]---\n", st->marker->name);
+ } else if (prot != cur || level != st->level ||
+ st->current_address >= st->marker[1].start_address) {
+ /* Print the actual finished series */
+ seq_printf(m, "0x%0*lx-0x%0*lx",
+ width, st->start_address,
+ width, st->current_address);
+ delta = (st->current_address - st->start_address) >> 10;
+ while (!(delta & 0x3ff) && unit[1]) {
+ delta >>= 10;
+ unit++;
+ }
+ seq_printf(m, "%9lu%c ", delta, *unit);
+ print_prot(m, st->current_prot, st->level);
+ if (st->current_address >= st->marker[1].start_address) {
+ st->marker++;
+ seq_printf(m, "---[ %s ]---\n", st->marker->name);
+ }
+ st->start_address = st->current_address;
+ st->current_prot = new_prot;
+ st->level = level;
+ }
+}
+
+/*
+ * The actual page table walker functions. In order to keep the implementation
+ * of print_prot() short, we only check and pass _PAGE_INVALID and _PAGE_RO
+ * flags to note_page() if a region, segment or page table entry is invalid or
+ * read-only.
+ * After all it's just a hint that the current level being walked contains an
+ * invalid or read-only entry.
+ */
+static void walk_pte_level(struct seq_file *m, struct pg_state *st,
+ pmd_t *pmd, unsigned long addr)
+{
+ unsigned int prot;
+ pte_t *pte;
+ int i;
+
+ for (i = 0; i < PTRS_PER_PTE && addr < max_addr; i++) {
+ st->current_address = addr;
+ pte = pte_offset_kernel(pmd, addr);
+ prot = pte_val(*pte) & (_PAGE_RO | _PAGE_INVALID);
+ note_page(m, st, prot, 4);
+ addr += PAGE_SIZE;
+ }
+}
+
+static void walk_pmd_level(struct seq_file *m, struct pg_state *st,
+ pud_t *pud, unsigned long addr)
+{
+ unsigned int prot;
+ pmd_t *pmd;
+ int i;
+
+ for (i = 0; i < PTRS_PER_PMD && addr < max_addr; i++) {
+ st->current_address = addr;
+ pmd = pmd_offset(pud, addr);
+ if (!pmd_none(*pmd)) {
+ if (pmd_large(*pmd)) {
+ prot = pmd_val(*pmd) & _SEGMENT_ENTRY_RO;
+ note_page(m, st, prot, 3);
+ } else
+ walk_pte_level(m, st, pmd, addr);
+ } else
+ note_page(m, st, _PAGE_INVALID, 3);
+ addr += PMD_SIZE;
+ }
+}
+
+static void walk_pud_level(struct seq_file *m, struct pg_state *st,
+ pgd_t *pgd, unsigned long addr)
+{
+ pud_t *pud;
+ int i;
+
+ for (i = 0; i < PTRS_PER_PUD && addr < max_addr; i++) {
+ st->current_address = addr;
+ pud = pud_offset(pgd, addr);
+ if (!pud_none(*pud))
+ walk_pmd_level(m, st, pud, addr);
+ else
+ note_page(m, st, _PAGE_INVALID, 2);
+ addr += PUD_SIZE;
+ }
+}
+
+static void walk_pgd_level(struct seq_file *m)
+{
+ unsigned long addr = 0;
+ struct pg_state st;
+ pgd_t *pgd;
+ int i;
+
+ memset(&st, 0, sizeof(st));
+ for (i = 0; i < PTRS_PER_PGD && addr < max_addr; i++) {
+ st.current_address = addr;
+ pgd = pgd_offset_k(addr);
+ if (!pgd_none(*pgd))
+ walk_pud_level(m, &st, pgd, addr);
+ else
+ note_page(m, &st, _PAGE_INVALID, 1);
+ addr += PGDIR_SIZE;
+ }
+ /* Flush out the last page */
+ st.current_address = max_addr;
+ note_page(m, &st, 0, 0);
+}
+
+static int ptdump_show(struct seq_file *m, void *v)
+{
+ walk_pgd_level(m);
+ return 0;
+}
+
+static int ptdump_open(struct inode *inode, struct file *filp)
+{
+ return single_open(filp, ptdump_show, NULL);
+}
+
+static const struct file_operations ptdump_fops = {
+ .open = ptdump_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static int pt_dump_init(void)
+{
+ /*
+ * Figure out the maximum virtual address being accessible with the
+ * kernel ASCE. We need this to keep the page table walker functions
+ * from accessing non-existent entries.
+ */
+#ifdef CONFIG_32BIT
+ max_addr = 1UL << 31;
+#else
+ max_addr = (S390_lowcore.kernel_asce & _REGION_ENTRY_TYPE_MASK) >> 2;
+ max_addr = 1UL << (max_addr * 11 + 31);
+ address_markers[MODULES_NR].start_address = MODULES_VADDR;
+#endif
+ address_markers[VMEMMAP_NR].start_address = (unsigned long) vmemmap;
+ address_markers[VMALLOC_NR].start_address = VMALLOC_START;
+ debugfs_create_file("kernel_page_tables", 0400, NULL, NULL, &ptdump_fops);
+ return 0;
+}
+device_initcall(pt_dump_init);
#include <asm/cacheflush.h>
#include <asm/pgtable.h>
+static pte_t *walk_page_table(unsigned long addr)
+{
+ pgd_t *pgdp;
+ pud_t *pudp;
+ pmd_t *pmdp;
+ pte_t *ptep;
+
+ pgdp = pgd_offset_k(addr);
+ if (pgd_none(*pgdp))
+ return NULL;
+ pudp = pud_offset(pgdp, addr);
+ if (pud_none(*pudp))
+ return NULL;
+ pmdp = pmd_offset(pudp, addr);
+ if (pmd_none(*pmdp) || pmd_large(*pmdp))
+ return NULL;
+ ptep = pte_offset_kernel(pmdp, addr);
+ if (pte_none(*ptep))
+ return NULL;
+ return ptep;
+}
+
static void change_page_attr(unsigned long addr, int numpages,
pte_t (*set) (pte_t))
{
pte_t *ptep, pte;
- pmd_t *pmdp;
- pud_t *pudp;
- pgd_t *pgdp;
int i;
for (i = 0; i < numpages; i++) {
- pgdp = pgd_offset(&init_mm, addr);
- pudp = pud_offset(pgdp, addr);
- pmdp = pmd_offset(pudp, addr);
- if (pmd_huge(*pmdp)) {
- WARN_ON_ONCE(1);
- continue;
- }
- ptep = pte_offset_kernel(pmdp, addr);
-
+ ptep = walk_page_table(addr);
+ if (WARN_ON_ONCE(!ptep))
+ break;
pte = *ptep;
pte = set(pte);
__ptep_ipte(addr, ptep);
change_page_attr(addr, numpages, pte_wrprotect);
return 0;
}
-EXPORT_SYMBOL_GPL(set_memory_ro);
int set_memory_rw(unsigned long addr, int numpages)
{
change_page_attr(addr, numpages, pte_mkwrite);
return 0;
}
-EXPORT_SYMBOL_GPL(set_memory_rw);
/* not possible */
int set_memory_nx(unsigned long addr, int numpages)
{
return 0;
}
-EXPORT_SYMBOL_GPL(set_memory_nx);
int set_memory_x(unsigned long addr, int numpages)
{
*/
static int vmem_add_mem(unsigned long start, unsigned long size, int ro)
{
- unsigned long address;
+ unsigned long end = start + size;
+ unsigned long address = start;
pgd_t *pg_dir;
pud_t *pu_dir;
pmd_t *pm_dir;
pte_t pte;
int ret = -ENOMEM;
- for (address = start; address < start + size; address += PAGE_SIZE) {
+ while (address < end) {
pg_dir = pgd_offset_k(address);
if (pgd_none(*pg_dir)) {
pu_dir = vmem_pud_alloc();
pm_dir = pmd_offset(pu_dir, address);
#if defined(CONFIG_64BIT) && !defined(CONFIG_DEBUG_PAGEALLOC)
- if (MACHINE_HAS_HPAGE && !(address & ~HPAGE_MASK) &&
- (address + HPAGE_SIZE <= start + size) &&
- (address >= HPAGE_SIZE)) {
+ if (MACHINE_HAS_EDAT1 && pmd_none(*pm_dir) && address &&
+ !(address & ~PMD_MASK) && (address + PMD_SIZE <= end)) {
pte_val(pte) |= _SEGMENT_ENTRY_LARGE;
pmd_val(*pm_dir) = pte_val(pte);
- address += HPAGE_SIZE - PAGE_SIZE;
+ address += PMD_SIZE;
continue;
}
#endif
pt_dir = pte_offset_kernel(pm_dir, address);
*pt_dir = pte;
+ address += PAGE_SIZE;
}
ret = 0;
out:
- flush_tlb_kernel_range(start, start + size);
+ flush_tlb_kernel_range(start, end);
return ret;
}
*/
static void vmem_remove_range(unsigned long start, unsigned long size)
{
- unsigned long address;
+ unsigned long end = start + size;
+ unsigned long address = start;
pgd_t *pg_dir;
pud_t *pu_dir;
pmd_t *pm_dir;
pte_t pte;
pte_val(pte) = _PAGE_TYPE_EMPTY;
- for (address = start; address < start + size; address += PAGE_SIZE) {
+ while (address < end) {
pg_dir = pgd_offset_k(address);
+ if (pgd_none(*pg_dir)) {
+ address += PGDIR_SIZE;
+ continue;
+ }
pu_dir = pud_offset(pg_dir, address);
- if (pud_none(*pu_dir))
+ if (pud_none(*pu_dir)) {
+ address += PUD_SIZE;
continue;
+ }
pm_dir = pmd_offset(pu_dir, address);
- if (pmd_none(*pm_dir))
+ if (pmd_none(*pm_dir)) {
+ address += PMD_SIZE;
continue;
-
- if (pmd_huge(*pm_dir)) {
+ }
+ if (pmd_large(*pm_dir)) {
pmd_clear(pm_dir);
- address += HPAGE_SIZE - PAGE_SIZE;
+ address += PMD_SIZE;
continue;
}
-
pt_dir = pte_offset_kernel(pm_dir, address);
*pt_dir = pte;
+ address += PAGE_SIZE;
}
- flush_tlb_kernel_range(start, start + size);
+ flush_tlb_kernel_range(start, end);
}
/*
unsigned long start, end;
int i;
- ro_start = ((unsigned long)&_stext) & PAGE_MASK;
- ro_end = PFN_ALIGN((unsigned long)&_eshared);
+ ro_start = PFN_ALIGN((unsigned long)&_stext);
+ ro_end = (unsigned long)&_eshared & PAGE_MASK;
for (i = 0; i < MEMORY_CHUNKS && memory_chunk[i].size > 0; i++) {
if (memory_chunk[i].type == CHUNK_CRASHK ||
memory_chunk[i].type == CHUNK_OLDMEM)
designs licensed by PKUnity Ltd.
Please see web page at <http://www.pkunity.com/>.
-config HAVE_PWM
- bool
-
config GENERIC_GPIO
def_bool y
config PUV3_NB0916
bool "NetBook board (0916)"
- select HAVE_PWM
+ select PWM
+ select PWM_PUV3
config PUV3_SMW0919
bool "Security Mini-Workstation board (0919)"
select GPIO_SYSFS if EXPERIMENTAL
default y
-config PUV3_PWM
- tristate
- default BACKLIGHT_PWM
- help
- Enable support for NB0916 PWM controllers
-
if PUV3_NB0916
menu "PKUnity NetBook-0916 Features"
* Interrupt Enable Reg OST_OIER
*/
#define OST_OIER (PKUNITY_OST_BASE + 0x001C)
+
/*
- * PWM Pulse Width Control Reg OST_PWMPWCR
- */
-#define OST_PWMPWCR (PKUNITY_OST_BASE + 0x0080)
-/*
- * PWM Duty Cycle Control Reg OST_PWMDCCR
- */
-#define OST_PWMDCCR (PKUNITY_OST_BASE + 0x0084)
-/*
- * PWM Period Control Reg OST_PWMPCR
+ * PWM Registers: IO base address: PKUNITY_OST_BASE + 0x80
+ * PWCR: Pulse Width Control Reg
+ * DCCR: Duty Cycle Control Reg
+ * PCR: Period Control Reg
*/
-#define OST_PWMPCR (PKUNITY_OST_BASE + 0x0088)
+#define OST_PWM_PWCR (0x00)
+#define OST_PWM_DCCR (0x04)
+#define OST_PWM_PCR (0x08)
/*
* Match detected 0 OST_OSSR_M0
obj-$(CONFIG_ARCH_PUV3) += clock.o irq.o time.o
obj-$(CONFIG_PUV3_GPIO) += gpio.o
-obj-$(CONFIG_PUV3_PWM) += pwm.o
obj-$(CONFIG_PUV3_PM) += pm.o sleep.o
obj-$(CONFIG_HIBERNATION) += hibernate.o hibernate_asm.o
+++ /dev/null
-/*
- * linux/arch/unicore32/kernel/pwm.c
- *
- * Code specific to PKUnity SoC and UniCore ISA
- *
- * Maintained by GUAN Xue-tao <gxt@mprc.pku.edu.cn>
- * Copyright (C) 2001-2010 Guan Xuetao
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/platform_device.h>
-#include <linux/slab.h>
-#include <linux/err.h>
-#include <linux/clk.h>
-#include <linux/io.h>
-#include <linux/pwm.h>
-
-#include <asm/div64.h>
-#include <mach/hardware.h>
-
-struct pwm_device {
- struct list_head node;
- struct platform_device *pdev;
-
- const char *label;
- struct clk *clk;
- int clk_enabled;
-
- unsigned int use_count;
- unsigned int pwm_id;
-};
-
-/*
- * period_ns = 10^9 * (PRESCALE + 1) * (PV + 1) / PWM_CLK_RATE
- * duty_ns = 10^9 * (PRESCALE + 1) * DC / PWM_CLK_RATE
- */
-int pwm_config(struct pwm_device *pwm, int duty_ns, int period_ns)
-{
- unsigned long long c;
- unsigned long period_cycles, prescale, pv, dc;
-
- if (pwm == NULL || period_ns == 0 || duty_ns > period_ns)
- return -EINVAL;
-
- c = clk_get_rate(pwm->clk);
- c = c * period_ns;
- do_div(c, 1000000000);
- period_cycles = c;
-
- if (period_cycles < 1)
- period_cycles = 1;
- prescale = (period_cycles - 1) / 1024;
- pv = period_cycles / (prescale + 1) - 1;
-
- if (prescale > 63)
- return -EINVAL;
-
- if (duty_ns == period_ns)
- dc = OST_PWMDCCR_FDCYCLE;
- else
- dc = (pv + 1) * duty_ns / period_ns;
-
- /* NOTE: the clock to PWM has to be enabled first
- * before writing to the registers
- */
- clk_enable(pwm->clk);
- OST_PWMPWCR = prescale;
- OST_PWMDCCR = pv - dc;
- OST_PWMPCR = pv;
- clk_disable(pwm->clk);
-
- return 0;
-}
-EXPORT_SYMBOL(pwm_config);
-
-int pwm_enable(struct pwm_device *pwm)
-{
- int rc = 0;
-
- if (!pwm->clk_enabled) {
- rc = clk_enable(pwm->clk);
- if (!rc)
- pwm->clk_enabled = 1;
- }
- return rc;
-}
-EXPORT_SYMBOL(pwm_enable);
-
-void pwm_disable(struct pwm_device *pwm)
-{
- if (pwm->clk_enabled) {
- clk_disable(pwm->clk);
- pwm->clk_enabled = 0;
- }
-}
-EXPORT_SYMBOL(pwm_disable);
-
-static DEFINE_MUTEX(pwm_lock);
-static LIST_HEAD(pwm_list);
-
-struct pwm_device *pwm_request(int pwm_id, const char *label)
-{
- struct pwm_device *pwm;
- int found = 0;
-
- mutex_lock(&pwm_lock);
-
- list_for_each_entry(pwm, &pwm_list, node) {
- if (pwm->pwm_id == pwm_id) {
- found = 1;
- break;
- }
- }
-
- if (found) {
- if (pwm->use_count == 0) {
- pwm->use_count++;
- pwm->label = label;
- } else
- pwm = ERR_PTR(-EBUSY);
- } else
- pwm = ERR_PTR(-ENOENT);
-
- mutex_unlock(&pwm_lock);
- return pwm;
-}
-EXPORT_SYMBOL(pwm_request);
-
-void pwm_free(struct pwm_device *pwm)
-{
- mutex_lock(&pwm_lock);
-
- if (pwm->use_count) {
- pwm->use_count--;
- pwm->label = NULL;
- } else
- pr_warning("PWM device already freed\n");
-
- mutex_unlock(&pwm_lock);
-}
-EXPORT_SYMBOL(pwm_free);
-
-static inline void __add_pwm(struct pwm_device *pwm)
-{
- mutex_lock(&pwm_lock);
- list_add_tail(&pwm->node, &pwm_list);
- mutex_unlock(&pwm_lock);
-}
-
-static struct pwm_device *pwm_probe(struct platform_device *pdev,
- unsigned int pwm_id, struct pwm_device *parent_pwm)
-{
- struct pwm_device *pwm;
- struct resource *r;
- int ret = 0;
-
- pwm = kzalloc(sizeof(struct pwm_device), GFP_KERNEL);
- if (pwm == NULL) {
- dev_err(&pdev->dev, "failed to allocate memory\n");
- return ERR_PTR(-ENOMEM);
- }
-
- pwm->clk = clk_get(NULL, "OST_CLK");
- if (IS_ERR(pwm->clk)) {
- ret = PTR_ERR(pwm->clk);
- goto err_free;
- }
- pwm->clk_enabled = 0;
-
- pwm->use_count = 0;
- pwm->pwm_id = pwm_id;
- pwm->pdev = pdev;
-
- r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (r == NULL) {
- dev_err(&pdev->dev, "no memory resource defined\n");
- ret = -ENODEV;
- goto err_free_clk;
- }
-
- r = request_mem_region(r->start, resource_size(r), pdev->name);
- if (r == NULL) {
- dev_err(&pdev->dev, "failed to request memory resource\n");
- ret = -EBUSY;
- goto err_free_clk;
- }
-
- __add_pwm(pwm);
- platform_set_drvdata(pdev, pwm);
- return pwm;
-
-err_free_clk:
- clk_put(pwm->clk);
-err_free:
- kfree(pwm);
- return ERR_PTR(ret);
-}
-
-static int __devinit puv3_pwm_probe(struct platform_device *pdev)
-{
- struct pwm_device *pwm = pwm_probe(pdev, pdev->id, NULL);
-
- if (IS_ERR(pwm))
- return PTR_ERR(pwm);
-
- return 0;
-}
-
-static int __devexit pwm_remove(struct platform_device *pdev)
-{
- struct pwm_device *pwm;
- struct resource *r;
-
- pwm = platform_get_drvdata(pdev);
- if (pwm == NULL)
- return -ENODEV;
-
- mutex_lock(&pwm_lock);
- list_del(&pwm->node);
- mutex_unlock(&pwm_lock);
-
- r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- release_mem_region(r->start, resource_size(r));
-
- clk_put(pwm->clk);
- kfree(pwm);
- return 0;
-}
-
-static struct platform_driver puv3_pwm_driver = {
- .driver = {
- .name = "PKUnity-v3-PWM",
- },
- .probe = puv3_pwm_probe,
- .remove = __devexit_p(pwm_remove),
-};
-
-static int __init pwm_init(void)
-{
- int ret = 0;
-
- ret = platform_driver_register(&puv3_pwm_driver);
- if (ret) {
- printk(KERN_ERR "failed to register puv3_pwm_driver\n");
- return ret;
- }
-
- return ret;
-}
-arch_initcall(pwm_init);
-
-static void __exit pwm_exit(void)
-{
- platform_driver_unregister(&puv3_pwm_driver);
-}
-module_exit(pwm_exit);
-
-MODULE_LICENSE("GPL v2");
return 0;
}
-int
-_nouveau_parent_ctor(struct nouveau_object *parent,
- struct nouveau_object *engine,
- struct nouveau_oclass *oclass, void *data, u32 size,
- struct nouveau_object **pobject)
-{
- struct nouveau_parent *object;
- int ret;
-
- ret = nouveau_parent_create(parent, engine, oclass, 0, NULL, 0, &object);
- *pobject = nv_object(object);
- if (ret)
- return ret;
-
- return 0;
-}
-
void
nouveau_parent_destroy(struct nouveau_parent *parent)
{
int size, void **);
void nouveau_parent_destroy(struct nouveau_parent *);
-int _nouveau_parent_ctor(struct nouveau_object *, struct nouveau_object *,
- struct nouveau_oclass *, void *, u32,
- struct nouveau_object **);
void _nouveau_parent_dtor(struct nouveau_object *);
#define _nouveau_parent_init _nouveau_object_init
#define _nouveau_parent_fini _nouveau_object_fini
struct nouveau_timer {
struct nouveau_subdev base;
u64 (*read)(struct nouveau_timer *);
- void (*alarm)(struct nouveau_timer *, u32 time, struct nouveau_alarm *);
+ void (*alarm)(struct nouveau_timer *, u64 time, struct nouveau_alarm *);
};
static inline struct nouveau_timer *
nouveau_bios_shadow_acpi(struct nouveau_bios *bios)
{
struct pci_dev *pdev = nv_device(bios)->pdev;
- int cnt = 65536 / 4096;
- int ret;
+ int ret, cnt, i;
+ u8 data[3];
if (!nouveau_acpi_rom_supported(pdev))
return;
- bios->data = kmalloc(65536, GFP_KERNEL);
bios->size = 0;
- if (!bios->data)
- return;
-
- while (cnt--) {
- ret = nouveau_acpi_get_bios_chunk(bios->data, bios->size, 4096);
- if (ret != 4096)
- return;
+ if (nouveau_acpi_get_bios_chunk(data, 0, 3) == 3)
+ bios->size = data[2] * 512;
- bios->size += 4096;
+ bios->data = kmalloc(bios->size, GFP_KERNEL);
+ for (i = 0; bios->data && i < bios->size; i += cnt) {
+ cnt = min((bios->size - i), (u32)4096);
+ ret = nouveau_acpi_get_bios_chunk(bios->data, i, cnt);
+ if (ret != cnt)
+ break;
}
}
return ret;
priv->base.pll_set = nv50_clock_pll_set;
+ priv->base.pll_calc = nv04_clock_pll_calc;
return 0;
}
if (nv_rd32(therm, 0xc040) & 0x800000) {
/* Use the HOST clock (100 MHz)
* Where does this constant(2.4) comes from? */
- pwm_clock = (100000000 >> pwm_div) / 10 / 24;
+ pwm_clock = (100000000 >> pwm_div) * 10 / 24;
} else {
/* Where does this constant(20) comes from? */
pwm_clock = (crystal * 1000) >> pwm_div;
}
static void
-nv04_timer_alarm(struct nouveau_timer *ptimer, u32 time,
+nv04_timer_alarm(struct nouveau_timer *ptimer, u64 time,
struct nouveau_alarm *alarm)
{
struct nv04_timer_priv *priv = (void *)ptimer;
return srpt_get_cmd_state(ioctx);
}
-static u16 srpt_set_fabric_sense_len(struct se_cmd *cmd, u32 sense_length)
-{
- return 0;
-}
-
-static u16 srpt_get_fabric_sense_len(void)
-{
- return 0;
-}
-
/**
* srpt_parse_i_port_id() - Parse an initiator port ID.
* @name: ASCII representation of a 128-bit initiator port ID.
.queue_data_in = srpt_queue_response,
.queue_status = srpt_queue_status,
.queue_tm_rsp = srpt_queue_response,
- .get_fabric_sense_len = srpt_get_fabric_sense_len,
- .set_fabric_sense_len = srpt_set_fabric_sense_len,
/*
* Setup function pointers for generic logic in
* target_core_fabric_configfs.c
hardware-accelerated blinking with maximum on and off periods of 9.8
and 77 seconds respectively.
+config LEDS_LM3642
+ tristate "LED support for LM3642 Chip"
+ depends on LEDS_CLASS && I2C
+ select REGMAP_I2C
+ help
+ This option enables support for LEDs connected to LM3642.
+ The LM3642 is a 4MHz fixed-frequency synchronous boost
+ converter plus 1.5A constant current driver for a high-current
+ white LED.
+
+
config LEDS_LOCOMO
tristate "LED Support for Locomo device"
depends on LEDS_CLASS
programming the engines.
config LEDS_LP5523
- tristate "LED Support for N.S. LP5523 LED driver chip"
+ tristate "LED Support for TI/National LP5523/55231 LED driver chip"
depends on LEDS_CLASS && I2C
help
- If you say yes here you get support for the National Semiconductor
- LP5523 LED driver. It is 9 channel chip with programmable engines.
+ If you say yes here you get support for TI/National Semiconductor
+ LP5523/55231 LED driver.
+ It is 9 channel chip with programmable engines.
Driver provides direct control via LED class and interface for
programming the engines.
This option enables support for on-chip LED drivers on
MAXIM MAX8997 PMIC.
-config LEDS_LM3556
- tristate "LED support for LM3556 Chip"
+config LEDS_LM355x
+ tristate "LED support for LM355x Chips, LM3554 and LM3556"
depends on LEDS_CLASS && I2C
select REGMAP_I2C
help
- This option enables support for LEDs connected to LM3556.
- LM3556 includes Torch, Flash and Indicator functions.
+ This option enables support for LEDs connected to LM355x.
+ LM355x includes Torch, Flash and Indicator functions.
config LEDS_OT200
tristate "LED support for the Bachmann OT200"
obj-$(CONFIG_LEDS_LOCOMO) += leds-locomo.o
obj-$(CONFIG_LEDS_LM3530) += leds-lm3530.o
obj-$(CONFIG_LEDS_LM3533) += leds-lm3533.o
+obj-$(CONFIG_LEDS_LM3642) += leds-lm3642.o
obj-$(CONFIG_LEDS_MIKROTIK_RB532) += leds-rb532.o
obj-$(CONFIG_LEDS_S3C24XX) += leds-s3c24xx.o
obj-$(CONFIG_LEDS_NET48XX) += leds-net48xx.o
obj-$(CONFIG_LEDS_ASIC3) += leds-asic3.o
obj-$(CONFIG_LEDS_RENESAS_TPU) += leds-renesas-tpu.o
obj-$(CONFIG_LEDS_MAX8997) += leds-max8997.o
-obj-$(CONFIG_LEDS_LM3556) += leds-lm3556.o
+obj-$(CONFIG_LEDS_LM355x) += leds-lm355x.o
obj-$(CONFIG_LEDS_BLINKM) += leds-blinkm.o
# LED SPI Drivers
mod_timer(&led_cdev->blink_timer, jiffies + msecs_to_jiffies(delay));
}
+static void set_brightness_delayed(struct work_struct *ws)
+{
+ struct led_classdev *led_cdev =
+ container_of(ws, struct led_classdev, set_brightness_work);
+
+ led_stop_software_blink(led_cdev);
+
+ __led_set_brightness(led_cdev, led_cdev->delayed_set_value);
+}
+
/**
* led_classdev_suspend - suspend an led_classdev.
* @led_cdev: the led_classdev to suspend.
led_update_brightness(led_cdev);
+ INIT_WORK(&led_cdev->set_brightness_work, set_brightness_delayed);
+
init_timer(&led_cdev->blink_timer);
led_cdev->blink_timer.function = led_timer_function;
led_cdev->blink_timer.data = (unsigned long)led_cdev;
up_write(&led_cdev->trigger_lock);
#endif
+ cancel_work_sync(&led_cdev->set_brightness_work);
+
/* Stop blinking */
+ led_stop_software_blink(led_cdev);
led_set_brightness(led_cdev, LED_OFF);
device_unregister(led_cdev->dev);
}
EXPORT_SYMBOL(led_blink_set_oneshot);
-void led_set_brightness(struct led_classdev *led_cdev,
- enum led_brightness brightness)
+void led_stop_software_blink(struct led_classdev *led_cdev)
{
- /* stop and clear soft-blink timer */
del_timer_sync(&led_cdev->blink_timer);
led_cdev->blink_delay_on = 0;
led_cdev->blink_delay_off = 0;
+}
+EXPORT_SYMBOL_GPL(led_stop_software_blink);
+
+void led_set_brightness(struct led_classdev *led_cdev,
+ enum led_brightness brightness)
+{
+ /* delay brightness setting if need to stop soft-blink timer */
+ if (led_cdev->blink_delay_on || led_cdev->blink_delay_off) {
+ led_cdev->delayed_set_value = brightness;
+ schedule_work(&led_cdev->set_brightness_work);
+ return;
+ }
__led_set_brightness(led_cdev, brightness);
}
void led_trigger_set(struct led_classdev *led_cdev, struct led_trigger *trig)
{
unsigned long flags;
+ char *event = NULL;
+ char *envp[2];
+ const char *name;
+
+ name = trig ? trig->name : "none";
+ event = kasprintf(GFP_KERNEL, "TRIGGER=%s", name);
/* Remove any existing trigger */
if (led_cdev->trigger) {
list_del(&led_cdev->trig_list);
write_unlock_irqrestore(&led_cdev->trigger->leddev_list_lock,
flags);
+ cancel_work_sync(&led_cdev->set_brightness_work);
+ led_stop_software_blink(led_cdev);
if (led_cdev->trigger->deactivate)
led_cdev->trigger->deactivate(led_cdev);
led_cdev->trigger = NULL;
if (trig->activate)
trig->activate(led_cdev);
}
+
+ if (event) {
+ envp[0] = event;
+ envp[1] = NULL;
+ kobject_uevent_env(&led_cdev->dev->kobj, KOBJ_CHANGE, envp);
+ kfree(event);
+ }
}
EXPORT_SYMBOL_GPL(led_trigger_set);
struct led_classdev *led_cdev;
led_cdev = list_entry(entry, struct led_classdev, trig_list);
- __led_set_brightness(led_cdev, brightness);
+ led_set_brightness(led_cdev, brightness);
}
read_unlock(&trig->leddev_list_lock);
}
}
/*
- * struct mail_led_whitelist - List of known good models
+ * struct clevo_mail_led_dmi_table - List of known good models
*
* Contains the known good models this driver is compatible with.
* When adding a new model try to be as strict as possible. This
* detected as working, but in reality it is not) as low as
* possible.
*/
-static struct dmi_system_id __initdata mail_led_whitelist[] = {
+static struct dmi_system_id __initdata clevo_mail_led_dmi_table[] = {
{
.callback = clevo_mail_led_dmi_callback,
.ident = "Clevo D410J",
},
{
.callback = clevo_mail_led_dmi_callback,
- .ident = "Positivo Mobile",
+ .ident = "Clevo M5x0V",
.matches = {
DMI_MATCH(DMI_BOARD_VENDOR, "CLEVO Co. "),
DMI_MATCH(DMI_BOARD_NAME, "M5X0V "),
- DMI_MATCH(DMI_PRODUCT_NAME, "Positivo Mobile"),
DMI_MATCH(DMI_PRODUCT_VERSION, "VT6198")
}
},
},
{ }
};
+MODULE_DEVICE_TABLE(dmi, clevo_mail_led_dmi_table);
static void clevo_mail_led_set(struct led_classdev *led_cdev,
enum led_brightness value)
/* Check with the help of DMI if we are running on supported hardware */
if (!nodetect) {
- count = dmi_check_system(mail_led_whitelist);
+ count = dmi_check_system(clevo_mail_led_dmi_table);
} else {
count = 1;
printk(KERN_ERR KBUILD_MODNAME ": Skipping DMI detection. "
#include <linux/slab.h>
#include <linux/workqueue.h>
#include <linux/module.h>
+#include <linux/pinctrl/consumer.h>
struct gpio_led_data {
struct led_classdev cdev;
{
struct device_node *np = pdev->dev.of_node, *child;
struct gpio_leds_priv *priv;
- int count = 0, ret;
+ int count, ret;
/* count LEDs in this device, so we know how much to allocate */
- for_each_child_of_node(np, child)
- count++;
+ count = of_get_child_count(np);
if (!count)
return NULL;
{
return NULL;
}
-#define of_gpio_leds_match NULL
#endif /* CONFIG_OF_GPIO */
{
struct gpio_led_platform_data *pdata = pdev->dev.platform_data;
struct gpio_leds_priv *priv;
+ struct pinctrl *pinctrl;
int i, ret = 0;
+ pinctrl = devm_pinctrl_get_select_default(&pdev->dev);
+ if (IS_ERR(pinctrl))
+ dev_warn(&pdev->dev,
+ "pins are not configured from the driver\n");
+
if (pdata && pdata->num_leds) {
priv = devm_kzalloc(&pdev->dev,
sizeof_gpio_leds_priv(pdata->num_leds),
static int __devexit gpio_led_remove(struct platform_device *pdev)
{
- struct gpio_leds_priv *priv = dev_get_drvdata(&pdev->dev);
+ struct gpio_leds_priv *priv = platform_get_drvdata(pdev);
int i;
for (i = 0; i < priv->num_leds; i++)
delete_gpio_led(&priv->leds[i]);
- dev_set_drvdata(&pdev->dev, NULL);
+ platform_set_drvdata(pdev, NULL);
return 0;
}
.driver = {
.name = "leds-gpio",
.owner = THIS_MODULE,
- .of_match_table = of_gpio_leds_match,
+ .of_match_table = of_match_ptr(of_gpio_leds_match),
},
};
if (sysfs_streq(str, mode_map[i].mode))
return mode_map[i].mode_val;
- return -1;
+ return -EINVAL;
}
static void lm3530_als_configure(struct lm3530_platform_data *pdata,
mode = lm3530_get_mode_from_str(buf);
if (mode < 0) {
dev_err(dev, "Invalid mode\n");
- return -EINVAL;
+ return mode;
}
drvdata->mode = mode;
i2c_set_clientdata(client, drvdata);
- drvdata->regulator = regulator_get(&client->dev, "vin");
+ drvdata->regulator = devm_regulator_get(&client->dev, "vin");
if (IS_ERR(drvdata->regulator)) {
dev_err(&client->dev, "regulator get failed\n");
err = PTR_ERR(drvdata->regulator);
if (err < 0) {
dev_err(&client->dev,
"Register Init failed: %d\n", err);
- err = -ENODEV;
- goto err_reg_init;
+ return err;
}
}
err = led_classdev_register(&client->dev, &drvdata->led_dev);
if (err < 0) {
dev_err(&client->dev, "Register led class failed: %d\n", err);
- err = -ENODEV;
- goto err_class_register;
+ return err;
}
err = device_create_file(drvdata->led_dev.dev, &dev_attr_mode);
err_create_file:
led_classdev_unregister(&drvdata->led_dev);
-err_class_register:
-err_reg_init:
- regulator_put(drvdata->regulator);
return err;
}
if (drvdata->enable)
regulator_disable(drvdata->regulator);
- regulator_put(drvdata->regulator);
led_classdev_unregister(&drvdata->led_dev);
return 0;
}
+++ /dev/null
-/*
- * Simple driver for Texas Instruments LM3556 LED Flash driver chip (Rev0x03)
- * Copyright (C) 2012 Texas Instruments
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * Please refer Documentation/leds/leds-lm3556.txt file.
- */
-#include <linux/module.h>
-#include <linux/delay.h>
-#include <linux/i2c.h>
-#include <linux/leds.h>
-#include <linux/slab.h>
-#include <linux/platform_device.h>
-#include <linux/fs.h>
-#include <linux/regmap.h>
-#include <linux/platform_data/leds-lm3556.h>
-
-#define REG_FILT_TIME (0x0)
-#define REG_IVFM_MODE (0x1)
-#define REG_NTC (0x2)
-#define REG_INDIC_TIME (0x3)
-#define REG_INDIC_BLINK (0x4)
-#define REG_INDIC_PERIOD (0x5)
-#define REG_TORCH_TIME (0x6)
-#define REG_CONF (0x7)
-#define REG_FLASH (0x8)
-#define REG_I_CTRL (0x9)
-#define REG_ENABLE (0xA)
-#define REG_FLAG (0xB)
-#define REG_MAX (0xB)
-
-#define IVFM_FILTER_TIME_SHIFT (3)
-#define UVLO_EN_SHIFT (7)
-#define HYSTERSIS_SHIFT (5)
-#define IVM_D_TH_SHIFT (2)
-#define IVFM_ADJ_MODE_SHIFT (0)
-#define NTC_EVENT_LVL_SHIFT (5)
-#define NTC_TRIP_TH_SHIFT (2)
-#define NTC_BIAS_I_LVL_SHIFT (0)
-#define INDIC_RAMP_UP_TIME_SHIFT (3)
-#define INDIC_RAMP_DN_TIME_SHIFT (0)
-#define INDIC_N_BLANK_SHIFT (4)
-#define INDIC_PULSE_TIME_SHIFT (0)
-#define INDIC_N_PERIOD_SHIFT (0)
-#define TORCH_RAMP_UP_TIME_SHIFT (3)
-#define TORCH_RAMP_DN_TIME_SHIFT (0)
-#define STROBE_USUAGE_SHIFT (7)
-#define STROBE_PIN_POLARITY_SHIFT (6)
-#define TORCH_PIN_POLARITY_SHIFT (5)
-#define TX_PIN_POLARITY_SHIFT (4)
-#define TX_EVENT_LVL_SHIFT (3)
-#define IVFM_EN_SHIFT (2)
-#define NTC_MODE_SHIFT (1)
-#define INDIC_MODE_SHIFT (0)
-#define INDUCTOR_I_LIMIT_SHIFT (6)
-#define FLASH_RAMP_TIME_SHIFT (3)
-#define FLASH_TOUT_TIME_SHIFT (0)
-#define TORCH_I_SHIFT (4)
-#define FLASH_I_SHIFT (0)
-#define NTC_EN_SHIFT (7)
-#define TX_PIN_EN_SHIFT (6)
-#define STROBE_PIN_EN_SHIFT (5)
-#define TORCH_PIN_EN_SHIFT (4)
-#define PRECHG_MODE_EN_SHIFT (3)
-#define PASS_MODE_ONLY_EN_SHIFT (2)
-#define MODE_BITS_SHIFT (0)
-
-#define IVFM_FILTER_TIME_MASK (0x3)
-#define UVLO_EN_MASK (0x1)
-#define HYSTERSIS_MASK (0x3)
-#define IVM_D_TH_MASK (0x7)
-#define IVFM_ADJ_MODE_MASK (0x3)
-#define NTC_EVENT_LVL_MASK (0x1)
-#define NTC_TRIP_TH_MASK (0x7)
-#define NTC_BIAS_I_LVL_MASK (0x3)
-#define INDIC_RAMP_UP_TIME_MASK (0x7)
-#define INDIC_RAMP_DN_TIME_MASK (0x7)
-#define INDIC_N_BLANK_MASK (0x7)
-#define INDIC_PULSE_TIME_MASK (0x7)
-#define INDIC_N_PERIOD_MASK (0x7)
-#define TORCH_RAMP_UP_TIME_MASK (0x7)
-#define TORCH_RAMP_DN_TIME_MASK (0x7)
-#define STROBE_USUAGE_MASK (0x1)
-#define STROBE_PIN_POLARITY_MASK (0x1)
-#define TORCH_PIN_POLARITY_MASK (0x1)
-#define TX_PIN_POLARITY_MASK (0x1)
-#define TX_EVENT_LVL_MASK (0x1)
-#define IVFM_EN_MASK (0x1)
-#define NTC_MODE_MASK (0x1)
-#define INDIC_MODE_MASK (0x1)
-#define INDUCTOR_I_LIMIT_MASK (0x3)
-#define FLASH_RAMP_TIME_MASK (0x7)
-#define FLASH_TOUT_TIME_MASK (0x7)
-#define TORCH_I_MASK (0x7)
-#define FLASH_I_MASK (0xF)
-#define NTC_EN_MASK (0x1)
-#define TX_PIN_EN_MASK (0x1)
-#define STROBE_PIN_EN_MASK (0x1)
-#define TORCH_PIN_EN_MASK (0x1)
-#define PRECHG_MODE_EN_MASK (0x1)
-#define PASS_MODE_ONLY_EN_MASK (0x1)
-#define MODE_BITS_MASK (0x13)
-#define EX_PIN_CONTROL_MASK (0xF1)
-#define EX_PIN_ENABLE_MASK (0x70)
-
-enum lm3556_indic_pulse_time {
- PULSE_TIME_0_MS = 0,
- PULSE_TIME_32_MS,
- PULSE_TIME_64_MS,
- PULSE_TIME_92_MS,
- PULSE_TIME_128_MS,
- PULSE_TIME_160_MS,
- PULSE_TIME_196_MS,
- PULSE_TIME_224_MS,
- PULSE_TIME_256_MS,
- PULSE_TIME_288_MS,
- PULSE_TIME_320_MS,
- PULSE_TIME_352_MS,
- PULSE_TIME_384_MS,
- PULSE_TIME_416_MS,
- PULSE_TIME_448_MS,
- PULSE_TIME_480_MS,
-};
-
-enum lm3556_indic_n_blank {
- INDIC_N_BLANK_0 = 0,
- INDIC_N_BLANK_1,
- INDIC_N_BLANK_2,
- INDIC_N_BLANK_3,
- INDIC_N_BLANK_4,
- INDIC_N_BLANK_5,
- INDIC_N_BLANK_6,
- INDIC_N_BLANK_7,
- INDIC_N_BLANK_8,
- INDIC_N_BLANK_9,
- INDIC_N_BLANK_10,
- INDIC_N_BLANK_11,
- INDIC_N_BLANK_12,
- INDIC_N_BLANK_13,
- INDIC_N_BLANK_14,
- INDIC_N_BLANK_15,
-};
-
-enum lm3556_indic_period {
- INDIC_PERIOD_0 = 0,
- INDIC_PERIOD_1,
- INDIC_PERIOD_2,
- INDIC_PERIOD_3,
- INDIC_PERIOD_4,
- INDIC_PERIOD_5,
- INDIC_PERIOD_6,
- INDIC_PERIOD_7,
-};
-
-enum lm3556_mode {
- MODES_STASNDBY = 0,
- MODES_INDIC,
- MODES_TORCH,
- MODES_FLASH
-};
-
-#define INDIC_PATTERN_SIZE 4
-
-struct indicator {
- u8 blinking;
- u8 period_cnt;
-};
-
-struct lm3556_chip_data {
- struct device *dev;
-
- struct led_classdev cdev_flash;
- struct led_classdev cdev_torch;
- struct led_classdev cdev_indicator;
-
- struct lm3556_platform_data *pdata;
- struct regmap *regmap;
- struct mutex lock;
-
- unsigned int last_flag;
-};
-
-/* indicator pattern */
-static struct indicator indicator_pattern[INDIC_PATTERN_SIZE] = {
- [0] = {(INDIC_N_BLANK_1 << INDIC_N_BLANK_SHIFT)
- | PULSE_TIME_32_MS, INDIC_PERIOD_1},
- [1] = {(INDIC_N_BLANK_15 << INDIC_N_BLANK_SHIFT)
- | PULSE_TIME_32_MS, INDIC_PERIOD_2},
- [2] = {(INDIC_N_BLANK_10 << INDIC_N_BLANK_SHIFT)
- | PULSE_TIME_32_MS, INDIC_PERIOD_4},
- [3] = {(INDIC_N_BLANK_5 << INDIC_N_BLANK_SHIFT)
- | PULSE_TIME_32_MS, INDIC_PERIOD_7},
-};
-
-/* chip initialize */
-static int __devinit lm3556_chip_init(struct lm3556_chip_data *chip)
-{
- unsigned int reg_val;
- int ret;
- struct lm3556_platform_data *pdata = chip->pdata;
-
- /* set config register */
- ret = regmap_read(chip->regmap, REG_CONF, ®_val);
- if (ret < 0) {
- dev_err(chip->dev, "Failed to read REG_CONF Register\n");
- goto out;
- }
-
- reg_val &= (~EX_PIN_CONTROL_MASK);
- reg_val |= ((pdata->torch_pin_polarity & 0x01)
- << TORCH_PIN_POLARITY_SHIFT);
- reg_val |= ((pdata->strobe_usuage & 0x01) << STROBE_USUAGE_SHIFT);
- reg_val |= ((pdata->strobe_pin_polarity & 0x01)
- << STROBE_PIN_POLARITY_SHIFT);
- reg_val |= ((pdata->tx_pin_polarity & 0x01) << TX_PIN_POLARITY_SHIFT);
- reg_val |= ((pdata->indicator_mode & 0x01) << INDIC_MODE_SHIFT);
-
- ret = regmap_write(chip->regmap, REG_CONF, reg_val);
- if (ret < 0) {
- dev_err(chip->dev, "Failed to write REG_CONF Regisgter\n");
- goto out;
- }
-
- /* set enable register */
- ret = regmap_read(chip->regmap, REG_ENABLE, ®_val);
- if (ret < 0) {
- dev_err(chip->dev, "Failed to read REG_ENABLE Register\n");
- goto out;
- }
-
- reg_val &= (~EX_PIN_ENABLE_MASK);
- reg_val |= ((pdata->torch_pin_en & 0x01) << TORCH_PIN_EN_SHIFT);
- reg_val |= ((pdata->strobe_pin_en & 0x01) << STROBE_PIN_EN_SHIFT);
- reg_val |= ((pdata->tx_pin_en & 0x01) << TX_PIN_EN_SHIFT);
-
- ret = regmap_write(chip->regmap, REG_ENABLE, reg_val);
- if (ret < 0) {
- dev_err(chip->dev, "Failed to write REG_ENABLE Regisgter\n");
- goto out;
- }
-
-out:
- return ret;
-}
-
-/* chip control */
-static int lm3556_control(struct lm3556_chip_data *chip,
- u8 brightness, enum lm3556_mode opmode)
-{
- int ret;
- struct lm3556_platform_data *pdata = chip->pdata;
-
- ret = regmap_read(chip->regmap, REG_FLAG, &chip->last_flag);
- if (ret < 0) {
- dev_err(chip->dev, "Failed to read REG_FLAG Register\n");
- goto out;
- }
-
- if (chip->last_flag)
- dev_info(chip->dev, "Last FLAG is 0x%x\n", chip->last_flag);
-
- /* brightness 0 means off-state */
- if (!brightness)
- opmode = MODES_STASNDBY;
-
- switch (opmode) {
- case MODES_TORCH:
- ret = regmap_update_bits(chip->regmap, REG_I_CTRL,
- TORCH_I_MASK << TORCH_I_SHIFT,
- (brightness - 1) << TORCH_I_SHIFT);
-
- if (pdata->torch_pin_en)
- opmode |= (TORCH_PIN_EN_MASK << TORCH_PIN_EN_SHIFT);
- break;
-
- case MODES_FLASH:
- ret = regmap_update_bits(chip->regmap, REG_I_CTRL,
- FLASH_I_MASK << FLASH_I_SHIFT,
- (brightness - 1) << FLASH_I_SHIFT);
- break;
-
- case MODES_INDIC:
- ret = regmap_update_bits(chip->regmap, REG_I_CTRL,
- TORCH_I_MASK << TORCH_I_SHIFT,
- (brightness - 1) << TORCH_I_SHIFT);
- break;
-
- case MODES_STASNDBY:
- if (pdata->torch_pin_en)
- opmode |= (TORCH_PIN_EN_MASK << TORCH_PIN_EN_SHIFT);
- break;
-
- default:
- return ret;
- }
- if (ret < 0) {
- dev_err(chip->dev, "Failed to write REG_I_CTRL Register\n");
- goto out;
- }
- ret = regmap_update_bits(chip->regmap, REG_ENABLE,
- MODE_BITS_MASK << MODE_BITS_SHIFT,
- opmode << MODE_BITS_SHIFT);
-
-out:
- return ret;
-}
-
-/* torch */
-static void lm3556_torch_brightness_set(struct led_classdev *cdev,
- enum led_brightness brightness)
-{
- struct lm3556_chip_data *chip =
- container_of(cdev, struct lm3556_chip_data, cdev_torch);
-
- mutex_lock(&chip->lock);
- lm3556_control(chip, brightness, MODES_TORCH);
- mutex_unlock(&chip->lock);
-}
-
-/* flash */
-static void lm3556_strobe_brightness_set(struct led_classdev *cdev,
- enum led_brightness brightness)
-{
- struct lm3556_chip_data *chip =
- container_of(cdev, struct lm3556_chip_data, cdev_flash);
-
- mutex_lock(&chip->lock);
- lm3556_control(chip, brightness, MODES_FLASH);
- mutex_unlock(&chip->lock);
-}
-
-/* indicator */
-static void lm3556_indicator_brightness_set(struct led_classdev *cdev,
- enum led_brightness brightness)
-{
- struct lm3556_chip_data *chip =
- container_of(cdev, struct lm3556_chip_data, cdev_indicator);
-
- mutex_lock(&chip->lock);
- lm3556_control(chip, brightness, MODES_INDIC);
- mutex_unlock(&chip->lock);
-}
-
-/* indicator pattern */
-static ssize_t lm3556_indicator_pattern_store(struct device *dev,
- struct device_attribute *devAttr,
- const char *buf, size_t size)
-{
- ssize_t ret;
- struct led_classdev *led_cdev = dev_get_drvdata(dev);
- struct lm3556_chip_data *chip =
- container_of(led_cdev, struct lm3556_chip_data, cdev_indicator);
- unsigned int state;
-
- ret = kstrtouint(buf, 10, &state);
- if (ret)
- goto out;
- if (state > INDIC_PATTERN_SIZE - 1)
- state = INDIC_PATTERN_SIZE - 1;
-
- ret = regmap_write(chip->regmap, REG_INDIC_BLINK,
- indicator_pattern[state].blinking);
- if (ret < 0) {
- dev_err(chip->dev, "Failed to write REG_ENABLE Regisgter\n");
- goto out;
- }
-
- ret = regmap_write(chip->regmap, REG_INDIC_PERIOD,
- indicator_pattern[state].period_cnt);
- if (ret < 0) {
- dev_err(chip->dev, "Failed to write REG_ENABLE Regisgter\n");
- goto out;
- }
-
- return size;
-out:
- dev_err(chip->dev, "Indicator pattern doesn't saved\n");
- return size;
-}
-
-static DEVICE_ATTR(pattern, 0666, NULL, lm3556_indicator_pattern_store);
-
-static const struct regmap_config lm3556_regmap = {
- .reg_bits = 8,
- .val_bits = 8,
- .max_register = REG_MAX,
-};
-
-/* module initialize */
-static int __devinit lm3556_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
-{
- struct lm3556_platform_data *pdata = client->dev.platform_data;
- struct lm3556_chip_data *chip;
-
- int err;
-
- if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
- dev_err(&client->dev, "i2c functionality check fail.\n");
- return -EOPNOTSUPP;
- }
-
- if (pdata == NULL) {
- dev_err(&client->dev, "Needs Platform Data.\n");
- return -ENODATA;
- }
-
- chip =
- devm_kzalloc(&client->dev, sizeof(struct lm3556_chip_data),
- GFP_KERNEL);
- if (!chip)
- return -ENOMEM;
-
- chip->dev = &client->dev;
- chip->pdata = pdata;
-
- chip->regmap = devm_regmap_init_i2c(client, &lm3556_regmap);
- if (IS_ERR(chip->regmap)) {
- err = PTR_ERR(chip->regmap);
- dev_err(&client->dev, "Failed to allocate register map: %d\n",
- err);
- return err;
- }
-
- mutex_init(&chip->lock);
- i2c_set_clientdata(client, chip);
-
- err = lm3556_chip_init(chip);
- if (err < 0)
- goto err_out;
-
- /* flash */
- chip->cdev_flash.name = "flash";
- chip->cdev_flash.max_brightness = 16;
- chip->cdev_flash.brightness_set = lm3556_strobe_brightness_set;
- err = led_classdev_register((struct device *)
- &client->dev, &chip->cdev_flash);
- if (err < 0)
- goto err_out;
- /* torch */
- chip->cdev_torch.name = "torch";
- chip->cdev_torch.max_brightness = 8;
- chip->cdev_torch.brightness_set = lm3556_torch_brightness_set;
- err = led_classdev_register((struct device *)
- &client->dev, &chip->cdev_torch);
- if (err < 0)
- goto err_create_torch_file;
- /* indicator */
- chip->cdev_indicator.name = "indicator";
- chip->cdev_indicator.max_brightness = 8;
- chip->cdev_indicator.brightness_set = lm3556_indicator_brightness_set;
- err = led_classdev_register((struct device *)
- &client->dev, &chip->cdev_indicator);
- if (err < 0)
- goto err_create_indicator_file;
-
- err = device_create_file(chip->cdev_indicator.dev, &dev_attr_pattern);
- if (err < 0)
- goto err_create_pattern_file;
-
- dev_info(&client->dev, "LM3556 is initialized\n");
- return 0;
-
-err_create_pattern_file:
- led_classdev_unregister(&chip->cdev_indicator);
-err_create_indicator_file:
- led_classdev_unregister(&chip->cdev_torch);
-err_create_torch_file:
- led_classdev_unregister(&chip->cdev_flash);
-err_out:
- return err;
-}
-
-static int __devexit lm3556_remove(struct i2c_client *client)
-{
- struct lm3556_chip_data *chip = i2c_get_clientdata(client);
-
- device_remove_file(chip->cdev_indicator.dev, &dev_attr_pattern);
- led_classdev_unregister(&chip->cdev_indicator);
- led_classdev_unregister(&chip->cdev_torch);
- led_classdev_unregister(&chip->cdev_flash);
- regmap_write(chip->regmap, REG_ENABLE, 0);
- return 0;
-}
-
-static const struct i2c_device_id lm3556_id[] = {
- {LM3556_NAME, 0},
- {}
-};
-
-MODULE_DEVICE_TABLE(i2c, lm3556_id);
-
-static struct i2c_driver lm3556_i2c_driver = {
- .driver = {
- .name = LM3556_NAME,
- .owner = THIS_MODULE,
- .pm = NULL,
- },
- .probe = lm3556_probe,
- .remove = __devexit_p(lm3556_remove),
- .id_table = lm3556_id,
-};
-
-module_i2c_driver(lm3556_i2c_driver);
-
-MODULE_DESCRIPTION("Texas Instruments Flash Lighting driver for LM3556");
-MODULE_AUTHOR("Daniel Jeong <daniel.jeong@ti.com>");
-MODULE_AUTHOR("G.Shark Jeong <gshark.jeong@gmail.com>");
-MODULE_LICENSE("GPL v2");
--- /dev/null
+/*
+* Simple driver for Texas Instruments LM355x LED Flash driver chip
+* Copyright (C) 2012 Texas Instruments
+*
+* This program is free software; you can redistribute it and/or modify
+* it under the terms of the GNU General Public License version 2 as
+* published by the Free Software Foundation.
+*/
+
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/i2c.h>
+#include <linux/gpio.h>
+#include <linux/leds.h>
+#include <linux/slab.h>
+#include <linux/platform_device.h>
+#include <linux/fs.h>
+#include <linux/regmap.h>
+#include <linux/workqueue.h>
+#include <linux/platform_data/leds-lm355x.h>
+
+enum lm355x_type {
+ CHIP_LM3554 = 0,
+ CHIP_LM3556,
+};
+
+enum lm355x_regs {
+ REG_FLAG = 0,
+ REG_TORCH_CFG,
+ REG_TORCH_CTRL,
+ REG_STROBE_CFG,
+ REG_FLASH_CTRL,
+ REG_INDI_CFG,
+ REG_INDI_CTRL,
+ REG_OPMODE,
+ REG_MAX,
+};
+
+/* operation mode */
+enum lm355x_mode {
+ MODE_SHDN = 0,
+ MODE_INDIC,
+ MODE_TORCH,
+ MODE_FLASH
+};
+
+/* register map info. */
+struct lm355x_reg_data {
+ u8 regno;
+ u8 mask;
+ u8 shift;
+};
+
+struct lm355x_chip_data {
+ struct device *dev;
+ enum lm355x_type type;
+
+ struct led_classdev cdev_flash;
+ struct led_classdev cdev_torch;
+ struct led_classdev cdev_indicator;
+
+ struct work_struct work_flash;
+ struct work_struct work_torch;
+ struct work_struct work_indicator;
+
+ u8 br_flash;
+ u8 br_torch;
+ u8 br_indicator;
+
+ struct lm355x_platform_data *pdata;
+ struct regmap *regmap;
+ struct mutex lock;
+
+ unsigned int last_flag;
+ struct lm355x_reg_data *regs;
+};
+
+/* specific indicator function for lm3556 */
+enum lm3556_indic_pulse_time {
+ PULSE_TIME_0_MS = 0,
+ PULSE_TIME_32_MS,
+ PULSE_TIME_64_MS,
+ PULSE_TIME_92_MS,
+ PULSE_TIME_128_MS,
+ PULSE_TIME_160_MS,
+ PULSE_TIME_196_MS,
+ PULSE_TIME_224_MS,
+ PULSE_TIME_256_MS,
+ PULSE_TIME_288_MS,
+ PULSE_TIME_320_MS,
+ PULSE_TIME_352_MS,
+ PULSE_TIME_384_MS,
+ PULSE_TIME_416_MS,
+ PULSE_TIME_448_MS,
+ PULSE_TIME_480_MS,
+};
+
+enum lm3556_indic_n_blank {
+ INDIC_N_BLANK_0 = 0,
+ INDIC_N_BLANK_1,
+ INDIC_N_BLANK_2,
+ INDIC_N_BLANK_3,
+ INDIC_N_BLANK_4,
+ INDIC_N_BLANK_5,
+ INDIC_N_BLANK_6,
+ INDIC_N_BLANK_7,
+ INDIC_N_BLANK_8,
+ INDIC_N_BLANK_9,
+ INDIC_N_BLANK_10,
+ INDIC_N_BLANK_11,
+ INDIC_N_BLANK_12,
+ INDIC_N_BLANK_13,
+ INDIC_N_BLANK_14,
+ INDIC_N_BLANK_15,
+};
+
+enum lm3556_indic_period {
+ INDIC_PERIOD_0 = 0,
+ INDIC_PERIOD_1,
+ INDIC_PERIOD_2,
+ INDIC_PERIOD_3,
+ INDIC_PERIOD_4,
+ INDIC_PERIOD_5,
+ INDIC_PERIOD_6,
+ INDIC_PERIOD_7,
+};
+
+#define INDIC_PATTERN_SIZE 4
+
+struct indicator {
+ u8 blinking;
+ u8 period_cnt;
+};
+
+/* indicator pattern data only for lm3556 */
+static struct indicator indicator_pattern[INDIC_PATTERN_SIZE] = {
+ [0] = {(INDIC_N_BLANK_1 << 4) | PULSE_TIME_32_MS, INDIC_PERIOD_1},
+ [1] = {(INDIC_N_BLANK_15 << 4) | PULSE_TIME_32_MS, INDIC_PERIOD_2},
+ [2] = {(INDIC_N_BLANK_10 << 4) | PULSE_TIME_32_MS, INDIC_PERIOD_4},
+ [3] = {(INDIC_N_BLANK_5 << 4) | PULSE_TIME_32_MS, INDIC_PERIOD_7},
+};
+
+static struct lm355x_reg_data lm3554_regs[REG_MAX] = {
+ [REG_FLAG] = {0xD0, 0xBF, 0},
+ [REG_TORCH_CFG] = {0xE0, 0x80, 7},
+ [REG_TORCH_CTRL] = {0xA0, 0x38, 3},
+ [REG_STROBE_CFG] = {0xE0, 0x04, 2},
+ [REG_FLASH_CTRL] = {0xB0, 0x78, 3},
+ [REG_INDI_CFG] = {0xE0, 0x08, 3},
+ [REG_INDI_CTRL] = {0xA0, 0xC0, 6},
+ [REG_OPMODE] = {0xA0, 0x03, 0},
+};
+
+static struct lm355x_reg_data lm3556_regs[REG_MAX] = {
+ [REG_FLAG] = {0x0B, 0xFF, 0},
+ [REG_TORCH_CFG] = {0x0A, 0x10, 4},
+ [REG_TORCH_CTRL] = {0x09, 0x70, 4},
+ [REG_STROBE_CFG] = {0x0A, 0x20, 5},
+ [REG_FLASH_CTRL] = {0x09, 0x0F, 0},
+ [REG_INDI_CFG] = {0xFF, 0xFF, 0},
+ [REG_INDI_CTRL] = {0x09, 0x70, 4},
+ [REG_OPMODE] = {0x0A, 0x03, 0},
+};
+
+static char lm355x_name[][I2C_NAME_SIZE] = {
+ [CHIP_LM3554] = LM3554_NAME,
+ [CHIP_LM3556] = LM3556_NAME,
+};
+
+/* chip initialize */
+static int __devinit lm355x_chip_init(struct lm355x_chip_data *chip)
+{
+ int ret;
+ unsigned int reg_val;
+ struct lm355x_platform_data *pdata = chip->pdata;
+
+ /* input and output pins configuration */
+ switch (chip->type) {
+ case CHIP_LM3554:
+ reg_val = pdata->pin_tx2 | pdata->ntc_pin;
+ ret = regmap_update_bits(chip->regmap, 0xE0, 0x28, reg_val);
+ if (ret < 0)
+ goto out;
+ reg_val = pdata->pass_mode;
+ ret = regmap_update_bits(chip->regmap, 0xA0, 0x04, reg_val);
+ if (ret < 0)
+ goto out;
+ break;
+
+ case CHIP_LM3556:
+ reg_val = pdata->pin_tx2 | pdata->ntc_pin | pdata->pass_mode;
+ ret = regmap_update_bits(chip->regmap, 0x0A, 0xC4, reg_val);
+ if (ret < 0)
+ goto out;
+ break;
+ default:
+ return -ENODATA;
+ }
+
+ return ret;
+out:
+ dev_err(chip->dev, "%s:i2c access fail to register\n", __func__);
+ return ret;
+}
+
+/* chip control */
+static void lm355x_control(struct lm355x_chip_data *chip,
+ u8 brightness, enum lm355x_mode opmode)
+{
+ int ret;
+ unsigned int reg_val;
+ struct lm355x_platform_data *pdata = chip->pdata;
+ struct lm355x_reg_data *preg = chip->regs;
+
+ ret = regmap_read(chip->regmap, preg[REG_FLAG].regno, &chip->last_flag);
+ if (ret < 0)
+ goto out;
+ if (chip->last_flag & preg[REG_FLAG].mask)
+ dev_info(chip->dev, "%s Last FLAG is 0x%x\n",
+ lm355x_name[chip->type],
+ chip->last_flag & preg[REG_FLAG].mask);
+ /* brightness 0 means shutdown */
+ if (!brightness)
+ opmode = MODE_SHDN;
+
+ switch (opmode) {
+ case MODE_TORCH:
+ ret =
+ regmap_update_bits(chip->regmap, preg[REG_TORCH_CTRL].regno,
+ preg[REG_TORCH_CTRL].mask,
+ (brightness - 1)
+ << preg[REG_TORCH_CTRL].shift);
+ if (ret < 0)
+ goto out;
+
+ if (pdata->pin_tx1 != LM355x_PIN_TORCH_DISABLE) {
+ ret =
+ regmap_update_bits(chip->regmap,
+ preg[REG_TORCH_CFG].regno,
+ preg[REG_TORCH_CFG].mask,
+ 0x01 <<
+ preg[REG_TORCH_CFG].shift);
+ if (ret < 0)
+ goto out;
+ opmode = MODE_SHDN;
+ dev_info(chip->dev,
+ "torch brt is set - ext. torch pin mode\n");
+ }
+ break;
+
+ case MODE_FLASH:
+
+ ret =
+ regmap_update_bits(chip->regmap, preg[REG_FLASH_CTRL].regno,
+ preg[REG_FLASH_CTRL].mask,
+ (brightness - 1)
+ << preg[REG_FLASH_CTRL].shift);
+ if (ret < 0)
+ goto out;
+
+ if (pdata->pin_strobe != LM355x_PIN_STROBE_DISABLE) {
+ if (chip->type == CHIP_LM3554)
+ reg_val = 0x00;
+ else
+ reg_val = 0x01;
+ ret =
+ regmap_update_bits(chip->regmap,
+ preg[REG_STROBE_CFG].regno,
+ preg[REG_STROBE_CFG].mask,
+ reg_val <<
+ preg[REG_STROBE_CFG].shift);
+ if (ret < 0)
+ goto out;
+ opmode = MODE_SHDN;
+ dev_info(chip->dev,
+ "flash brt is set - ext. strobe pin mode\n");
+ }
+ break;
+
+ case MODE_INDIC:
+ ret =
+ regmap_update_bits(chip->regmap, preg[REG_INDI_CTRL].regno,
+ preg[REG_INDI_CTRL].mask,
+ (brightness - 1)
+ << preg[REG_INDI_CTRL].shift);
+ if (ret < 0)
+ goto out;
+
+ if (pdata->pin_tx2 != LM355x_PIN_TX_DISABLE) {
+ ret =
+ regmap_update_bits(chip->regmap,
+ preg[REG_INDI_CFG].regno,
+ preg[REG_INDI_CFG].mask,
+ 0x01 <<
+ preg[REG_INDI_CFG].shift);
+ if (ret < 0)
+ goto out;
+ opmode = MODE_SHDN;
+ }
+ break;
+ case MODE_SHDN:
+ break;
+ default:
+ return;
+ }
+ /* operation mode control */
+ ret = regmap_update_bits(chip->regmap, preg[REG_OPMODE].regno,
+ preg[REG_OPMODE].mask,
+ opmode << preg[REG_OPMODE].shift);
+ if (ret < 0)
+ goto out;
+ return;
+out:
+ dev_err(chip->dev, "%s:i2c access fail to register\n", __func__);
+ return;
+}
+
+/* torch */
+static void lm355x_deferred_torch_brightness_set(struct work_struct *work)
+{
+ struct lm355x_chip_data *chip =
+ container_of(work, struct lm355x_chip_data, work_torch);
+
+ mutex_lock(&chip->lock);
+ lm355x_control(chip, chip->br_torch, MODE_TORCH);
+ mutex_unlock(&chip->lock);
+}
+
+static void lm355x_torch_brightness_set(struct led_classdev *cdev,
+ enum led_brightness brightness)
+{
+ struct lm355x_chip_data *chip =
+ container_of(cdev, struct lm355x_chip_data, cdev_torch);
+
+ chip->br_torch = brightness;
+ schedule_work(&chip->work_torch);
+}
+
+/* flash */
+static void lm355x_deferred_strobe_brightness_set(struct work_struct *work)
+{
+ struct lm355x_chip_data *chip =
+ container_of(work, struct lm355x_chip_data, work_flash);
+
+ mutex_lock(&chip->lock);
+ lm355x_control(chip, chip->br_flash, MODE_FLASH);
+ mutex_unlock(&chip->lock);
+}
+
+static void lm355x_strobe_brightness_set(struct led_classdev *cdev,
+ enum led_brightness brightness)
+{
+ struct lm355x_chip_data *chip =
+ container_of(cdev, struct lm355x_chip_data, cdev_flash);
+
+ chip->br_flash = brightness;
+ schedule_work(&chip->work_flash);
+}
+
+/* indicator */
+static void lm355x_deferred_indicator_brightness_set(struct work_struct *work)
+{
+ struct lm355x_chip_data *chip =
+ container_of(work, struct lm355x_chip_data, work_indicator);
+
+ mutex_lock(&chip->lock);
+ lm355x_control(chip, chip->br_indicator, MODE_INDIC);
+ mutex_unlock(&chip->lock);
+}
+
+static void lm355x_indicator_brightness_set(struct led_classdev *cdev,
+ enum led_brightness brightness)
+{
+ struct lm355x_chip_data *chip =
+ container_of(cdev, struct lm355x_chip_data, cdev_indicator);
+
+ chip->br_indicator = brightness;
+ schedule_work(&chip->work_indicator);
+}
+
+/* indicator pattern only for lm3556*/
+static ssize_t lm3556_indicator_pattern_store(struct device *dev,
+ struct device_attribute *devAttr,
+ const char *buf, size_t size)
+{
+ ssize_t ret;
+ struct led_classdev *led_cdev = dev_get_drvdata(dev);
+ struct lm355x_chip_data *chip =
+ container_of(led_cdev, struct lm355x_chip_data, cdev_indicator);
+ unsigned int state;
+
+ ret = kstrtouint(buf, 10, &state);
+ if (ret)
+ goto out;
+ if (state > INDIC_PATTERN_SIZE - 1)
+ state = INDIC_PATTERN_SIZE - 1;
+
+ ret = regmap_write(chip->regmap, 0x04,
+ indicator_pattern[state].blinking);
+ if (ret < 0)
+ goto out;
+
+ ret = regmap_write(chip->regmap, 0x05,
+ indicator_pattern[state].period_cnt);
+ if (ret < 0)
+ goto out;
+
+ return size;
+out:
+ dev_err(chip->dev, "%s:i2c access fail to register\n", __func__);
+ return size;
+}
+
+static DEVICE_ATTR(pattern, 0666, NULL, lm3556_indicator_pattern_store);
+
+static const struct regmap_config lm355x_regmap = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .max_register = 0xFF,
+};
+
+/* module initialize */
+static int __devinit lm355x_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct lm355x_platform_data *pdata = client->dev.platform_data;
+ struct lm355x_chip_data *chip;
+
+ int err;
+
+ if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
+ dev_err(&client->dev, "i2c functionality check fail.\n");
+ return -EOPNOTSUPP;
+ }
+
+ if (pdata == NULL) {
+ dev_err(&client->dev, "needs Platform Data.\n");
+ return -ENODATA;
+ }
+
+ chip = devm_kzalloc(&client->dev,
+ sizeof(struct lm355x_chip_data), GFP_KERNEL);
+ if (!chip)
+ return -ENOMEM;
+
+ chip->dev = &client->dev;
+ chip->type = id->driver_data;
+ switch (id->driver_data) {
+ case CHIP_LM3554:
+ chip->regs = lm3554_regs;
+ break;
+ case CHIP_LM3556:
+ chip->regs = lm3556_regs;
+ break;
+ default:
+ return -ENOSYS;
+ }
+ chip->pdata = pdata;
+
+ chip->regmap = devm_regmap_init_i2c(client, &lm355x_regmap);
+ if (IS_ERR(chip->regmap)) {
+ err = PTR_ERR(chip->regmap);
+ dev_err(&client->dev,
+ "Failed to allocate register map: %d\n", err);
+ return err;
+ }
+
+ mutex_init(&chip->lock);
+ i2c_set_clientdata(client, chip);
+
+ err = lm355x_chip_init(chip);
+ if (err < 0)
+ goto err_out;
+
+ /* flash */
+ INIT_WORK(&chip->work_flash, lm355x_deferred_strobe_brightness_set);
+ chip->cdev_flash.name = "flash";
+ chip->cdev_flash.max_brightness = 16;
+ chip->cdev_flash.brightness_set = lm355x_strobe_brightness_set;
+ err = led_classdev_register((struct device *)
+ &client->dev, &chip->cdev_flash);
+ if (err < 0)
+ goto err_out;
+ /* torch */
+ INIT_WORK(&chip->work_torch, lm355x_deferred_torch_brightness_set);
+ chip->cdev_torch.name = "torch";
+ chip->cdev_torch.max_brightness = 8;
+ chip->cdev_torch.brightness_set = lm355x_torch_brightness_set;
+ err = led_classdev_register((struct device *)
+ &client->dev, &chip->cdev_torch);
+ if (err < 0)
+ goto err_create_torch_file;
+ /* indicator */
+ INIT_WORK(&chip->work_indicator,
+ lm355x_deferred_indicator_brightness_set);
+ chip->cdev_indicator.name = "indicator";
+ if (id->driver_data == CHIP_LM3554)
+ chip->cdev_indicator.max_brightness = 4;
+ else
+ chip->cdev_indicator.max_brightness = 8;
+ chip->cdev_indicator.brightness_set = lm355x_indicator_brightness_set;
+ err = led_classdev_register((struct device *)
+ &client->dev, &chip->cdev_indicator);
+ if (err < 0)
+ goto err_create_indicator_file;
+ /* indicator pattern control only for LM3554 */
+ if (id->driver_data == CHIP_LM3556) {
+ err =
+ device_create_file(chip->cdev_indicator.dev,
+ &dev_attr_pattern);
+ if (err < 0)
+ goto err_create_pattern_file;
+ }
+
+ dev_info(&client->dev, "%s is initialized\n",
+ lm355x_name[id->driver_data]);
+ return 0;
+
+err_create_pattern_file:
+ led_classdev_unregister(&chip->cdev_indicator);
+err_create_indicator_file:
+ led_classdev_unregister(&chip->cdev_torch);
+err_create_torch_file:
+ led_classdev_unregister(&chip->cdev_flash);
+err_out:
+ return err;
+}
+
+static int __devexit lm355x_remove(struct i2c_client *client)
+{
+ struct lm355x_chip_data *chip = i2c_get_clientdata(client);
+ struct lm355x_reg_data *preg = chip->regs;
+
+ regmap_write(chip->regmap, preg[REG_OPMODE].regno, 0);
+ if (chip->type == CHIP_LM3556)
+ device_remove_file(chip->cdev_indicator.dev, &dev_attr_pattern);
+ led_classdev_unregister(&chip->cdev_indicator);
+ flush_work(&chip->work_indicator);
+ led_classdev_unregister(&chip->cdev_torch);
+ flush_work(&chip->work_torch);
+ led_classdev_unregister(&chip->cdev_flash);
+ flush_work(&chip->work_flash);
+ dev_info(&client->dev, "%s is removed\n", lm355x_name[chip->type]);
+
+ return 0;
+}
+
+static const struct i2c_device_id lm355x_id[] = {
+ {LM3554_NAME, CHIP_LM3554},
+ {LM3556_NAME, CHIP_LM3556},
+ {}
+};
+
+MODULE_DEVICE_TABLE(i2c, lm355x_id);
+
+static struct i2c_driver lm355x_i2c_driver = {
+ .driver = {
+ .name = LM355x_NAME,
+ .owner = THIS_MODULE,
+ .pm = NULL,
+ },
+ .probe = lm355x_probe,
+ .remove = __devexit_p(lm355x_remove),
+ .id_table = lm355x_id,
+};
+
+module_i2c_driver(lm355x_i2c_driver);
+
+MODULE_DESCRIPTION("Texas Instruments Flash Lighting driver for LM355x");
+MODULE_AUTHOR("Daniel Jeong <daniel.jeong@ti.com>");
+MODULE_AUTHOR("G.Shark Jeong <gshark.jeong@gmail.com>");
+MODULE_LICENSE("GPL v2");
--- /dev/null
+/*
+* Simple driver for Texas Instruments LM3642 LED Flash driver chip
+* Copyright (C) 2012 Texas Instruments
+*
+* This program is free software; you can redistribute it and/or modify
+* it under the terms of the GNU General Public License version 2 as
+* published by the Free Software Foundation.
+*
+*/
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/i2c.h>
+#include <linux/leds.h>
+#include <linux/slab.h>
+#include <linux/platform_device.h>
+#include <linux/fs.h>
+#include <linux/regmap.h>
+#include <linux/workqueue.h>
+#include <linux/platform_data/leds-lm3642.h>
+
+#define REG_FILT_TIME (0x0)
+#define REG_IVFM_MODE (0x1)
+#define REG_TORCH_TIME (0x6)
+#define REG_FLASH (0x8)
+#define REG_I_CTRL (0x9)
+#define REG_ENABLE (0xA)
+#define REG_FLAG (0xB)
+#define REG_MAX (0xB)
+
+#define UVLO_EN_SHIFT (7)
+#define IVM_D_TH_SHIFT (2)
+#define TORCH_RAMP_UP_TIME_SHIFT (3)
+#define TORCH_RAMP_DN_TIME_SHIFT (0)
+#define INDUCTOR_I_LIMIT_SHIFT (6)
+#define FLASH_RAMP_TIME_SHIFT (3)
+#define FLASH_TOUT_TIME_SHIFT (0)
+#define TORCH_I_SHIFT (4)
+#define FLASH_I_SHIFT (0)
+#define IVFM_SHIFT (7)
+#define TX_PIN_EN_SHIFT (6)
+#define STROBE_PIN_EN_SHIFT (5)
+#define TORCH_PIN_EN_SHIFT (4)
+#define MODE_BITS_SHIFT (0)
+
+#define UVLO_EN_MASK (0x1)
+#define IVM_D_TH_MASK (0x7)
+#define TORCH_RAMP_UP_TIME_MASK (0x7)
+#define TORCH_RAMP_DN_TIME_MASK (0x7)
+#define INDUCTOR_I_LIMIT_MASK (0x1)
+#define FLASH_RAMP_TIME_MASK (0x7)
+#define FLASH_TOUT_TIME_MASK (0x7)
+#define TORCH_I_MASK (0x7)
+#define FLASH_I_MASK (0xF)
+#define IVFM_MASK (0x1)
+#define TX_PIN_EN_MASK (0x1)
+#define STROBE_PIN_EN_MASK (0x1)
+#define TORCH_PIN_EN_MASK (0x1)
+#define MODE_BITS_MASK (0x73)
+#define EX_PIN_CONTROL_MASK (0x71)
+#define EX_PIN_ENABLE_MASK (0x70)
+
+enum lm3642_mode {
+ MODES_STASNDBY = 0,
+ MODES_INDIC,
+ MODES_TORCH,
+ MODES_FLASH
+};
+
+struct lm3642_chip_data {
+ struct device *dev;
+
+ struct led_classdev cdev_flash;
+ struct led_classdev cdev_torch;
+ struct led_classdev cdev_indicator;
+
+ struct work_struct work_flash;
+ struct work_struct work_torch;
+ struct work_struct work_indicator;
+
+ u8 br_flash;
+ u8 br_torch;
+ u8 br_indicator;
+
+ enum lm3642_torch_pin_enable torch_pin;
+ enum lm3642_strobe_pin_enable strobe_pin;
+ enum lm3642_tx_pin_enable tx_pin;
+
+ struct lm3642_platform_data *pdata;
+ struct regmap *regmap;
+ struct mutex lock;
+
+ unsigned int last_flag;
+};
+
+/* chip initialize */
+static int __devinit lm3642_chip_init(struct lm3642_chip_data *chip)
+{
+ int ret;
+ struct lm3642_platform_data *pdata = chip->pdata;
+
+ /* set enable register */
+ ret = regmap_update_bits(chip->regmap, REG_ENABLE, EX_PIN_ENABLE_MASK,
+ pdata->tx_pin);
+ if (ret < 0)
+ dev_err(chip->dev, "Failed to update REG_ENABLE Register\n");
+ return ret;
+}
+
+/* chip control */
+static int lm3642_control(struct lm3642_chip_data *chip,
+ u8 brightness, enum lm3642_mode opmode)
+{
+ int ret;
+
+ ret = regmap_read(chip->regmap, REG_FLAG, &chip->last_flag);
+ if (ret < 0) {
+ dev_err(chip->dev, "Failed to read REG_FLAG Register\n");
+ goto out;
+ }
+
+ if (chip->last_flag)
+ dev_info(chip->dev, "Last FLAG is 0x%x\n", chip->last_flag);
+
+ /* brightness 0 means off-state */
+ if (!brightness)
+ opmode = MODES_STASNDBY;
+
+ switch (opmode) {
+ case MODES_TORCH:
+ ret = regmap_update_bits(chip->regmap, REG_I_CTRL,
+ TORCH_I_MASK << TORCH_I_SHIFT,
+ (brightness - 1) << TORCH_I_SHIFT);
+
+ if (chip->torch_pin)
+ opmode |= (TORCH_PIN_EN_MASK << TORCH_PIN_EN_SHIFT);
+ break;
+
+ case MODES_FLASH:
+ ret = regmap_update_bits(chip->regmap, REG_I_CTRL,
+ FLASH_I_MASK << FLASH_I_SHIFT,
+ (brightness - 1) << FLASH_I_SHIFT);
+
+ if (chip->strobe_pin)
+ opmode |= (STROBE_PIN_EN_MASK << STROBE_PIN_EN_SHIFT);
+ break;
+
+ case MODES_INDIC:
+ ret = regmap_update_bits(chip->regmap, REG_I_CTRL,
+ TORCH_I_MASK << TORCH_I_SHIFT,
+ (brightness - 1) << TORCH_I_SHIFT);
+ break;
+
+ case MODES_STASNDBY:
+
+ break;
+
+ default:
+ return ret;
+ }
+ if (ret < 0) {
+ dev_err(chip->dev, "Failed to write REG_I_CTRL Register\n");
+ goto out;
+ }
+
+ if (chip->tx_pin)
+ opmode |= (TX_PIN_EN_MASK << TX_PIN_EN_SHIFT);
+
+ ret = regmap_update_bits(chip->regmap, REG_ENABLE,
+ MODE_BITS_MASK << MODE_BITS_SHIFT,
+ opmode << MODE_BITS_SHIFT);
+out:
+ return ret;
+}
+
+/* torch */
+
+/* torch pin config for lm3642*/
+static ssize_t lm3642_torch_pin_store(struct device *dev,
+ struct device_attribute *devAttr,
+ const char *buf, size_t size)
+{
+ ssize_t ret;
+ struct led_classdev *led_cdev = dev_get_drvdata(dev);
+ struct lm3642_chip_data *chip =
+ container_of(led_cdev, struct lm3642_chip_data, cdev_indicator);
+ unsigned int state;
+
+ ret = kstrtouint(buf, 10, &state);
+ if (ret)
+ goto out_strtoint;
+ if (state != 0)
+ state = 0x01 << TORCH_PIN_EN_SHIFT;
+
+ chip->torch_pin = state;
+ ret = regmap_update_bits(chip->regmap, REG_ENABLE,
+ TORCH_PIN_EN_MASK << TORCH_PIN_EN_SHIFT,
+ state);
+ if (ret < 0)
+ goto out;
+
+ return size;
+out:
+ dev_err(chip->dev, "%s:i2c access fail to register\n", __func__);
+ return size;
+out_strtoint:
+ dev_err(chip->dev, "%s: fail to change str to int\n", __func__);
+ return size;
+}
+
+static DEVICE_ATTR(torch_pin, 0666, NULL, lm3642_torch_pin_store);
+
+static void lm3642_deferred_torch_brightness_set(struct work_struct *work)
+{
+ struct lm3642_chip_data *chip =
+ container_of(work, struct lm3642_chip_data, work_torch);
+
+ mutex_lock(&chip->lock);
+ lm3642_control(chip, chip->br_torch, MODES_TORCH);
+ mutex_unlock(&chip->lock);
+}
+
+static void lm3642_torch_brightness_set(struct led_classdev *cdev,
+ enum led_brightness brightness)
+{
+ struct lm3642_chip_data *chip =
+ container_of(cdev, struct lm3642_chip_data, cdev_torch);
+
+ chip->br_torch = brightness;
+ schedule_work(&chip->work_torch);
+}
+
+/* flash */
+
+/* strobe pin config for lm3642*/
+static ssize_t lm3642_strobe_pin_store(struct device *dev,
+ struct device_attribute *devAttr,
+ const char *buf, size_t size)
+{
+ ssize_t ret;
+ struct led_classdev *led_cdev = dev_get_drvdata(dev);
+ struct lm3642_chip_data *chip =
+ container_of(led_cdev, struct lm3642_chip_data, cdev_indicator);
+ unsigned int state;
+
+ ret = kstrtouint(buf, 10, &state);
+ if (ret)
+ goto out_strtoint;
+ if (state != 0)
+ state = 0x01 << STROBE_PIN_EN_SHIFT;
+
+ chip->strobe_pin = state;
+ ret = regmap_update_bits(chip->regmap, REG_ENABLE,
+ STROBE_PIN_EN_MASK << STROBE_PIN_EN_SHIFT,
+ state);
+ if (ret < 0)
+ goto out;
+
+ return size;
+out:
+ dev_err(chip->dev, "%s:i2c access fail to register\n", __func__);
+ return size;
+out_strtoint:
+ dev_err(chip->dev, "%s: fail to change str to int\n", __func__);
+ return size;
+}
+
+static DEVICE_ATTR(strobe_pin, 0666, NULL, lm3642_strobe_pin_store);
+
+static void lm3642_deferred_strobe_brightness_set(struct work_struct *work)
+{
+ struct lm3642_chip_data *chip =
+ container_of(work, struct lm3642_chip_data, work_flash);
+
+ mutex_lock(&chip->lock);
+ lm3642_control(chip, chip->br_flash, MODES_FLASH);
+ mutex_unlock(&chip->lock);
+}
+
+static void lm3642_strobe_brightness_set(struct led_classdev *cdev,
+ enum led_brightness brightness)
+{
+ struct lm3642_chip_data *chip =
+ container_of(cdev, struct lm3642_chip_data, cdev_flash);
+
+ chip->br_flash = brightness;
+ schedule_work(&chip->work_flash);
+}
+
+/* indicator */
+static void lm3642_deferred_indicator_brightness_set(struct work_struct *work)
+{
+ struct lm3642_chip_data *chip =
+ container_of(work, struct lm3642_chip_data, work_indicator);
+
+ mutex_lock(&chip->lock);
+ lm3642_control(chip, chip->br_indicator, MODES_INDIC);
+ mutex_unlock(&chip->lock);
+}
+
+static void lm3642_indicator_brightness_set(struct led_classdev *cdev,
+ enum led_brightness brightness)
+{
+ struct lm3642_chip_data *chip =
+ container_of(cdev, struct lm3642_chip_data, cdev_indicator);
+
+ chip->br_indicator = brightness;
+ schedule_work(&chip->work_indicator);
+}
+
+static const struct regmap_config lm3642_regmap = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .max_register = REG_MAX,
+};
+
+static int __devinit lm3642_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct lm3642_platform_data *pdata = client->dev.platform_data;
+ struct lm3642_chip_data *chip;
+
+ int err;
+
+ if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
+ dev_err(&client->dev, "i2c functionality check fail.\n");
+ return -EOPNOTSUPP;
+ }
+
+ if (pdata == NULL) {
+ dev_err(&client->dev, "needs Platform Data.\n");
+ return -ENODATA;
+ }
+
+ chip = devm_kzalloc(&client->dev,
+ sizeof(struct lm3642_chip_data), GFP_KERNEL);
+ if (!chip)
+ return -ENOMEM;
+
+ chip->dev = &client->dev;
+ chip->pdata = pdata;
+
+ chip->tx_pin = pdata->tx_pin;
+ chip->torch_pin = pdata->torch_pin;
+ chip->strobe_pin = pdata->strobe_pin;
+
+ chip->regmap = devm_regmap_init_i2c(client, &lm3642_regmap);
+ if (IS_ERR(chip->regmap)) {
+ err = PTR_ERR(chip->regmap);
+ dev_err(&client->dev, "Failed to allocate register map: %d\n",
+ err);
+ return err;
+ }
+
+ mutex_init(&chip->lock);
+ i2c_set_clientdata(client, chip);
+
+ err = lm3642_chip_init(chip);
+ if (err < 0)
+ goto err_out;
+
+ /* flash */
+ INIT_WORK(&chip->work_flash, lm3642_deferred_strobe_brightness_set);
+ chip->cdev_flash.name = "flash";
+ chip->cdev_flash.max_brightness = 16;
+ chip->cdev_flash.brightness_set = lm3642_strobe_brightness_set;
+ err = led_classdev_register((struct device *)
+ &client->dev, &chip->cdev_flash);
+ if (err < 0) {
+ dev_err(chip->dev, "failed to register flash\n");
+ goto err_out;
+ }
+ err = device_create_file(chip->cdev_flash.dev, &dev_attr_strobe_pin);
+ if (err < 0) {
+ dev_err(chip->dev, "failed to create strobe-pin file\n");
+ goto err_create_flash_pin_file;
+ }
+
+ /* torch */
+ INIT_WORK(&chip->work_torch, lm3642_deferred_torch_brightness_set);
+ chip->cdev_torch.name = "torch";
+ chip->cdev_torch.max_brightness = 8;
+ chip->cdev_torch.brightness_set = lm3642_torch_brightness_set;
+ err = led_classdev_register((struct device *)
+ &client->dev, &chip->cdev_torch);
+ if (err < 0) {
+ dev_err(chip->dev, "failed to register torch\n");
+ goto err_create_torch_file;
+ }
+ err = device_create_file(chip->cdev_torch.dev, &dev_attr_torch_pin);
+ if (err < 0) {
+ dev_err(chip->dev, "failed to create torch-pin file\n");
+ goto err_create_torch_pin_file;
+ }
+
+ /* indicator */
+ INIT_WORK(&chip->work_indicator,
+ lm3642_deferred_indicator_brightness_set);
+ chip->cdev_indicator.name = "indicator";
+ chip->cdev_indicator.max_brightness = 8;
+ chip->cdev_indicator.brightness_set = lm3642_indicator_brightness_set;
+ err = led_classdev_register((struct device *)
+ &client->dev, &chip->cdev_indicator);
+ if (err < 0) {
+ dev_err(chip->dev, "failed to register indicator\n");
+ goto err_create_indicator_file;
+ }
+
+ dev_info(&client->dev, "LM3642 is initialized\n");
+ return 0;
+
+err_create_indicator_file:
+ device_remove_file(chip->cdev_torch.dev, &dev_attr_torch_pin);
+err_create_torch_pin_file:
+ led_classdev_unregister(&chip->cdev_torch);
+err_create_torch_file:
+ device_remove_file(chip->cdev_flash.dev, &dev_attr_strobe_pin);
+err_create_flash_pin_file:
+ led_classdev_unregister(&chip->cdev_flash);
+err_out:
+ return err;
+}
+
+static int __devexit lm3642_remove(struct i2c_client *client)
+{
+ struct lm3642_chip_data *chip = i2c_get_clientdata(client);
+
+ led_classdev_unregister(&chip->cdev_indicator);
+ flush_work(&chip->work_indicator);
+ device_remove_file(chip->cdev_torch.dev, &dev_attr_torch_pin);
+ led_classdev_unregister(&chip->cdev_torch);
+ flush_work(&chip->work_torch);
+ device_remove_file(chip->cdev_flash.dev, &dev_attr_strobe_pin);
+ led_classdev_unregister(&chip->cdev_flash);
+ flush_work(&chip->work_flash);
+ regmap_write(chip->regmap, REG_ENABLE, 0);
+ return 0;
+}
+
+static const struct i2c_device_id lm3642_id[] = {
+ {LM3642_NAME, 0},
+ {}
+};
+
+MODULE_DEVICE_TABLE(i2c, lm3642_id);
+
+static struct i2c_driver lm3642_i2c_driver = {
+ .driver = {
+ .name = LM3642_NAME,
+ .owner = THIS_MODULE,
+ .pm = NULL,
+ },
+ .probe = lm3642_probe,
+ .remove = __devexit_p(lm3642_remove),
+ .id_table = lm3642_id,
+};
+
+module_i2c_driver(lm3642_i2c_driver);
+
+MODULE_DESCRIPTION("Texas Instruments Flash Lighting driver for LM3642");
+MODULE_AUTHOR("Daniel Jeong <daniel.jeong@ti.com>");
+MODULE_AUTHOR("G.Shark Jeong <gshark.jeong@gmail.com>");
+MODULE_LICENSE("GPL v2");
#define LED_ACTIVE(mux, led) (!!(mux & (0x0001 << led)))
#define SHIFT_MASK(id) (((id) - 1) * 2)
+enum lp5523_chip_id {
+ LP5523,
+ LP55231,
+};
+
struct lp5523_engine {
int id;
u8 mode;
leds[led->id]);
}
-static int lp5523_set_mode(struct lp5523_engine *engine, u8 mode);
+static void lp5523_set_mode(struct lp5523_engine *engine, u8 mode);
static int lp5523_set_engine_mode(struct lp5523_engine *engine, u8 mode);
static int lp5523_load_program(struct lp5523_engine *engine, const u8 *pattern);
int ret;
u8 buf;
- ret = lp5523_write(client, LP5523_REG_ENABLE, 0x40);
+ ret = lp5523_write(client, LP5523_REG_ENABLE, LP5523_ENABLE);
if (ret)
return ret;
ret = lp5523_read(client, LP5523_REG_ENABLE, &buf);
{
int i;
u16 tmp_mux = 0;
- len = len < LP5523_LEDS ? len : LP5523_LEDS;
+
+ len = min_t(int, len, LP5523_LEDS);
for (i = 0; i < len; i++) {
switch (buf[i]) {
case '1':
unsigned cmd;
u8 pattern[LP5523_PROGRAM_LENGTH] = {0};
+ if (engine->mode != LP5523_CMD_LOAD)
+ return -EINVAL;
+
while ((offset < len - 1) && (i < LP5523_PROGRAM_LENGTH)) {
/* separate sscanfs because length is working only for %s */
ret = sscanf(buf + offset, "%2s%n ", c, &nrchars);
goto fail;
mutex_lock(&chip->lock);
-
- if (engine->mode == LP5523_CMD_LOAD)
- ret = lp5523_load_program(engine, pattern);
- else
- ret = -EINVAL;
-
+ ret = lp5523_load_program(engine, pattern);
mutex_unlock(&chip->lock);
if (ret) {
&dev_attr_engine2_leds.attr,
&dev_attr_engine3_load.attr,
&dev_attr_engine3_leds.attr,
+ NULL,
};
static const struct attribute_group lp5523_group = {
/*--------------------------------------------------------------*/
/* Set chip operating mode */
/*--------------------------------------------------------------*/
-static int lp5523_set_mode(struct lp5523_engine *engine, u8 mode)
+static void lp5523_set_mode(struct lp5523_engine *engine, u8 mode)
{
- int ret = 0;
-
/* if in that mode already do nothing, except for run */
if (mode == engine->mode && mode != LP5523_CMD_RUN)
- return 0;
+ return;
- if (mode == LP5523_CMD_RUN) {
- ret = lp5523_run_program(engine);
- } else if (mode == LP5523_CMD_LOAD) {
+ switch (mode) {
+ case LP5523_CMD_RUN:
+ lp5523_run_program(engine);
+ break;
+ case LP5523_CMD_LOAD:
lp5523_set_engine_mode(engine, LP5523_CMD_DISABLED);
lp5523_set_engine_mode(engine, LP5523_CMD_LOAD);
- } else if (mode == LP5523_CMD_DISABLED) {
+ break;
+ case LP5523_CMD_DISABLED:
lp5523_set_engine_mode(engine, LP5523_CMD_DISABLED);
+ break;
+ default:
+ return;
}
engine->mode = mode;
-
- return ret;
}
/*--------------------------------------------------------------*/
}
static int __devinit lp5523_init_led(struct lp5523_led *led, struct device *dev,
- int chan, struct lp5523_platform_data *pdata)
+ int chan, struct lp5523_platform_data *pdata,
+ const char *chip_name)
{
char name[32];
int res;
return -EINVAL;
}
- snprintf(name, sizeof(name), "%s:channel%d",
- pdata->label ?: "lp5523", chan);
+ if (pdata->led_config[chan].name) {
+ led->cdev.name = pdata->led_config[chan].name;
+ } else {
+ snprintf(name, sizeof(name), "%s:channel%d",
+ pdata->label ? : chip_name, chan);
+ led->cdev.name = name;
+ }
- led->cdev.name = name;
led->cdev.brightness_set = lp5523_set_brightness;
res = led_classdev_register(dev, &led->cdev);
if (res < 0) {
if (ret)
goto fail1;
- dev_info(&client->dev, "LP5523 Programmable led chip found\n");
+ dev_info(&client->dev, "%s Programmable led chip found\n", id->name);
/* Initialize engines */
for (i = 0; i < ARRAY_SIZE(chip->engines); i++) {
INIT_WORK(&chip->leds[led].brightness_work,
lp5523_led_brightness_work);
- ret = lp5523_init_led(&chip->leds[led], &client->dev, i, pdata);
+ ret = lp5523_init_led(&chip->leds[led], &client->dev, i, pdata,
+ id->name);
if (ret) {
dev_err(&client->dev, "error initializing leds\n");
goto fail2;
fail2:
for (i = 0; i < chip->num_leds; i++) {
led_classdev_unregister(&chip->leds[i].cdev);
- cancel_work_sync(&chip->leds[i].brightness_work);
+ flush_work(&chip->leds[i].brightness_work);
}
fail1:
if (pdata->enable)
struct lp5523_chip *chip = i2c_get_clientdata(client);
int i;
+ /* Disable engine mode */
+ lp5523_write(client, LP5523_REG_OP_MODE, LP5523_CMD_DISABLED);
+
lp5523_unregister_sysfs(client);
for (i = 0; i < chip->num_leds; i++) {
led_classdev_unregister(&chip->leds[i].cdev);
- cancel_work_sync(&chip->leds[i].brightness_work);
+ flush_work(&chip->leds[i].brightness_work);
}
if (chip->pdata->enable)
}
static const struct i2c_device_id lp5523_id[] = {
- { "lp5523", 0 },
+ { "lp5523", LP5523 },
+ { "lp55231", LP55231 },
{ }
};
static struct i2c_driver lp5523_driver = {
.driver = {
- .name = "lp5523",
+ .name = "lp5523x",
},
.probe = lp5523_probe,
.remove = lp5523_remove,
#include <linux/i2c.h>
#include <linux/workqueue.h>
#include <linux/slab.h>
+#include <linux/platform_data/leds-pca9633.h>
/* LED select registers determine the source that drives LED outputs */
#define PCA9633_LED_OFF 0x0 /* LED driver off */
const struct i2c_device_id *id)
{
struct pca9633_led *pca9633;
- struct led_platform_data *pdata;
+ struct pca9633_platform_data *pdata;
int i, err;
pdata = client->dev.platform_data;
if (pdata) {
- if (pdata->num_leds <= 0 || pdata->num_leds > 4) {
+ if (pdata->leds.num_leds <= 0 || pdata->leds.num_leds > 4) {
dev_err(&client->dev, "board info must claim at most 4 LEDs");
return -EINVAL;
}
pca9633[i].led_num = i;
/* Platform data can specify LED names and default triggers */
- if (pdata && i < pdata->num_leds) {
- if (pdata->leds[i].name)
+ if (pdata && i < pdata->leds.num_leds) {
+ if (pdata->leds.leds[i].name)
snprintf(pca9633[i].name,
sizeof(pca9633[i].name), "pca9633:%s",
- pdata->leds[i].name);
- if (pdata->leds[i].default_trigger)
+ pdata->leds.leds[i].name);
+ if (pdata->leds.leds[i].default_trigger)
pca9633[i].led_cdev.default_trigger =
- pdata->leds[i].default_trigger;
+ pdata->leds.leds[i].default_trigger;
} else {
snprintf(pca9633[i].name, sizeof(pca9633[i].name),
"pca9633:%d", i);
/* Disable LED all-call address and set normal mode */
i2c_smbus_write_byte_data(client, PCA9633_MODE1, 0x00);
+ /* Configure output: open-drain or totem pole (push-pull) */
+ if (pdata && pdata->outdrv == PCA9633_OPEN_DRAIN)
+ i2c_smbus_write_byte_data(client, PCA9633_MODE2, 0x01);
+
/* Turn off LEDs */
i2c_smbus_write_byte_data(client, PCA9633_LEDOUT, 0x00);
struct regulator *isink, *dcdc;
struct wm8350_led *led;
struct wm8350_led_platform_data *pdata = pdev->dev.platform_data;
- int ret, i;
+ int i;
if (pdata == NULL) {
dev_err(&pdev->dev, "no platform data\n");
return -EINVAL;
}
- isink = regulator_get(&pdev->dev, "led_isink");
+ isink = devm_regulator_get(&pdev->dev, "led_isink");
if (IS_ERR(isink)) {
printk(KERN_ERR "%s: can't get ISINK\n", __func__);
return PTR_ERR(isink);
}
- dcdc = regulator_get(&pdev->dev, "led_vcc");
+ dcdc = devm_regulator_get(&pdev->dev, "led_vcc");
if (IS_ERR(dcdc)) {
printk(KERN_ERR "%s: can't get DCDC\n", __func__);
- ret = PTR_ERR(dcdc);
- goto err_isink;
+ return PTR_ERR(dcdc);
}
led = devm_kzalloc(&pdev->dev, sizeof(*led), GFP_KERNEL);
- if (led == NULL) {
- ret = -ENOMEM;
- goto err_dcdc;
- }
+ if (led == NULL)
+ return -ENOMEM;
led->cdev.brightness_set = wm8350_led_set;
led->cdev.default_trigger = pdata->default_trigger;
led->value = LED_OFF;
platform_set_drvdata(pdev, led);
- ret = led_classdev_register(&pdev->dev, &led->cdev);
- if (ret < 0)
- goto err_dcdc;
-
- return 0;
-
- err_dcdc:
- regulator_put(dcdc);
- err_isink:
- regulator_put(isink);
- return ret;
+ return led_classdev_register(&pdev->dev, &led->cdev);
}
static int wm8350_led_remove(struct platform_device *pdev)
led_classdev_unregister(&led->cdev);
flush_work(&led->work);
wm8350_led_disable(led);
- regulator_put(led->dcdc);
- regulator_put(led->isink);
return 0;
}
return led_cdev->brightness;
}
+void led_stop_software_blink(struct led_classdev *led_cdev);
+
extern struct rw_semaphore leds_list_lock;
extern struct list_head leds_list;
purposes including software controlled power-efficient backlights
on LCD displays, motor control, and waveform generation.
-config AB8500_PWM
- bool "AB8500 PWM support"
- depends on AB8500_CORE && ARCH_U8500
- select HAVE_PWM
- depends on !PWM
- help
- This driver exports functions to enable/disble/config/free Pulse
- Width Modulation in the Analog Baseband Chip AB8500.
- It is used by led and backlight driver to control the intensity.
-
config ATMEL_TCLIB
bool "Atmel AT32/AT91 Timer/Counter Library"
depends on (AVR32 || ARCH_AT91)
obj-$(CONFIG_ARM_CHARLCD) += arm-charlcd.o
obj-$(CONFIG_PCH_PHUB) += pch_phub.o
obj-y += ti-st/
-obj-$(CONFIG_AB8500_PWM) += ab8500-pwm.o
obj-y += lis3lv02d/
obj-y += carma/
obj-$(CONFIG_USB_SWITCH_FSA9480) += fsa9480.o
menuconfig PWM
bool "Pulse-Width Modulation (PWM) Support"
- depends on !MACH_JZ4740 && !PUV3_PWM
help
Generic Pulse-Width Modulation (PWM) support.
if PWM
+config PWM_AB8500
+ tristate "AB8500 PWM support"
+ depends on AB8500_CORE && ARCH_U8500
+ help
+ Generic PWM framework driver for Analog Baseband AB8500.
+
+ To compile this driver as a module, choose M here: the module
+ will be called pwm-ab8500.
+
config PWM_BFIN
tristate "Blackfin PWM support"
depends on BFIN_GPTIMERS
To compile this driver as a module, choose M here: the module
will be called pwm-imx.
+config PWM_JZ4740
+ tristate "Ingenic JZ4740 PWM support"
+ depends on MACH_JZ4740
+ help
+ Generic PWM framework driver for Ingenic JZ4740 based
+ machines.
+
+ To compile this driver as a module, choose M here: the module
+ will be called pwm-jz4740.
+
config PWM_LPC32XX
tristate "LPC32XX PWM support"
depends on ARCH_LPC32XX
To compile this driver as a module, choose M here: the module
will be called pwm-mxs.
+config PWM_PUV3
+ tristate "PKUnity NetBook-0916 PWM support"
+ depends on ARCH_PUV3
+ help
+ Generic PWM framework driver for PKUnity NetBook-0916.
+
+ To compile this driver as a module, choose M here: the module
+ will be called pwm-puv3.
+
config PWM_PXA
tristate "PXA PWM support"
depends on ARCH_PXA
obj-$(CONFIG_PWM) += core.o
+obj-$(CONFIG_PWM_AB8500) += pwm-ab8500.o
obj-$(CONFIG_PWM_BFIN) += pwm-bfin.o
obj-$(CONFIG_PWM_IMX) += pwm-imx.o
+obj-$(CONFIG_PWM_JZ4740) += pwm-jz4740.o
obj-$(CONFIG_PWM_LPC32XX) += pwm-lpc32xx.o
obj-$(CONFIG_PWM_MXS) += pwm-mxs.o
+obj-$(CONFIG_PWM_PUV3) += pwm-puv3.o
obj-$(CONFIG_PWM_PXA) += pwm-pxa.o
obj-$(CONFIG_PWM_SAMSUNG) += pwm-samsung.o
obj-$(CONFIG_PWM_TEGRA) += pwm-tegra.o
*/
int pwm_config(struct pwm_device *pwm, int duty_ns, int period_ns)
{
- if (!pwm || period_ns == 0 || duty_ns > period_ns)
+ if (!pwm || duty_ns < 0 || period_ns <= 0 || duty_ns > period_ns)
return -EINVAL;
return pwm->chip->ops->config(pwm->chip, pwm, duty_ns, period_ns);
}
EXPORT_SYMBOL_GPL(pwm_config);
+/**
+ * pwm_set_polarity() - configure the polarity of a PWM signal
+ * @pwm: PWM device
+ * @polarity: new polarity of the PWM signal
+ *
+ * Note that the polarity cannot be configured while the PWM device is enabled
+ */
+int pwm_set_polarity(struct pwm_device *pwm, enum pwm_polarity polarity)
+{
+ if (!pwm || !pwm->chip->ops)
+ return -EINVAL;
+
+ if (!pwm->chip->ops->set_polarity)
+ return -ENOSYS;
+
+ if (test_bit(PWMF_ENABLED, &pwm->flags))
+ return -EBUSY;
+
+ return pwm->chip->ops->set_polarity(pwm->chip, pwm, polarity);
+}
+EXPORT_SYMBOL_GPL(pwm_set_polarity);
+
/**
* pwm_enable() - start a PWM output toggling
* @pwm: PWM device
}
EXPORT_SYMBOL_GPL(pwm_put);
+static void devm_pwm_release(struct device *dev, void *res)
+{
+ pwm_put(*(struct pwm_device **)res);
+}
+
+/**
+ * devm_pwm_get() - resource managed pwm_get()
+ * @dev: device for PWM consumer
+ * @con_id: consumer name
+ *
+ * This function performs like pwm_get() but the acquired PWM device will
+ * automatically be released on driver detach.
+ */
+struct pwm_device *devm_pwm_get(struct device *dev, const char *con_id)
+{
+ struct pwm_device **ptr, *pwm;
+
+ ptr = devres_alloc(devm_pwm_release, sizeof(**ptr), GFP_KERNEL);
+ if (!ptr)
+ return ERR_PTR(-ENOMEM);
+
+ pwm = pwm_get(dev, con_id);
+ if (!IS_ERR(pwm)) {
+ *ptr = pwm;
+ devres_add(dev, ptr);
+ } else {
+ devres_free(ptr);
+ }
+
+ return pwm;
+}
+EXPORT_SYMBOL_GPL(devm_pwm_get);
+
+static int devm_pwm_match(struct device *dev, void *res, void *data)
+{
+ struct pwm_device **p = res;
+
+ if (WARN_ON(!p || !*p))
+ return 0;
+
+ return *p == data;
+}
+
+/**
+ * devm_pwm_put() - resource managed pwm_put()
+ * @dev: device for PWM consumer
+ * @pwm: PWM device
+ *
+ * Release a PWM previously allocated using devm_pwm_get(). Calling this
+ * function is usually not needed because devm-allocated resources are
+ * automatically released on driver detach.
+ */
+void devm_pwm_put(struct device *dev, struct pwm_device *pwm)
+{
+ WARN_ON(devres_release(dev, devm_pwm_release, devm_pwm_match, pwm));
+}
+EXPORT_SYMBOL_GPL(devm_pwm_put);
+
#ifdef CONFIG_DEBUG_FS
static void pwm_dbg_show(struct pwm_chip *chip, struct seq_file *s)
{
#define ENABLE_PWM 1
#define DISABLE_PWM 0
-struct pwm_device {
- struct device *dev;
- struct list_head node;
- const char *label;
- unsigned int pwm_id;
+struct ab8500_pwm_chip {
+ struct pwm_chip chip;
};
-static LIST_HEAD(pwm_list);
-
-int pwm_config(struct pwm_device *pwm, int duty_ns, int period_ns)
+static int ab8500_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
+ int duty_ns, int period_ns)
{
int ret = 0;
unsigned int higher_val, lower_val;
*/
higher_val = ((duty_ns & 0x0300) >> 8);
- reg = AB8500_PWM_OUT_CTRL1_REG + ((pwm->pwm_id - 1) * 2);
+ reg = AB8500_PWM_OUT_CTRL1_REG + ((chip->base - 1) * 2);
- ret = abx500_set_register_interruptible(pwm->dev, AB8500_MISC,
+ ret = abx500_set_register_interruptible(chip->dev, AB8500_MISC,
reg, (u8)lower_val);
if (ret < 0)
return ret;
- ret = abx500_set_register_interruptible(pwm->dev, AB8500_MISC,
+ ret = abx500_set_register_interruptible(chip->dev, AB8500_MISC,
(reg + 1), (u8)higher_val);
return ret;
}
-EXPORT_SYMBOL(pwm_config);
-int pwm_enable(struct pwm_device *pwm)
+static int ab8500_pwm_enable(struct pwm_chip *chip, struct pwm_device *pwm)
{
int ret;
- ret = abx500_mask_and_set_register_interruptible(pwm->dev,
+ ret = abx500_mask_and_set_register_interruptible(chip->dev,
AB8500_MISC, AB8500_PWM_OUT_CTRL7_REG,
- 1 << (pwm->pwm_id-1), ENABLE_PWM);
+ 1 << (chip->base - 1), ENABLE_PWM);
if (ret < 0)
- dev_err(pwm->dev, "%s: Failed to disable PWM, Error %d\n",
+ dev_err(chip->dev, "%s: Failed to disable PWM, Error %d\n",
pwm->label, ret);
return ret;
}
-EXPORT_SYMBOL(pwm_enable);
-void pwm_disable(struct pwm_device *pwm)
+static void ab8500_pwm_disable(struct pwm_chip *chip, struct pwm_device *pwm)
{
int ret;
- ret = abx500_mask_and_set_register_interruptible(pwm->dev,
+ ret = abx500_mask_and_set_register_interruptible(chip->dev,
AB8500_MISC, AB8500_PWM_OUT_CTRL7_REG,
- 1 << (pwm->pwm_id-1), DISABLE_PWM);
+ 1 << (chip->base - 1), DISABLE_PWM);
if (ret < 0)
- dev_err(pwm->dev, "%s: Failed to disable PWM, Error %d\n",
+ dev_err(chip->dev, "%s: Failed to disable PWM, Error %d\n",
pwm->label, ret);
return;
}
-EXPORT_SYMBOL(pwm_disable);
-
-struct pwm_device *pwm_request(int pwm_id, const char *label)
-{
- struct pwm_device *pwm;
-
- list_for_each_entry(pwm, &pwm_list, node) {
- if (pwm->pwm_id == pwm_id) {
- pwm->label = label;
- pwm->pwm_id = pwm_id;
- return pwm;
- }
- }
-
- return ERR_PTR(-ENOENT);
-}
-EXPORT_SYMBOL(pwm_request);
-void pwm_free(struct pwm_device *pwm)
-{
- pwm_disable(pwm);
-}
-EXPORT_SYMBOL(pwm_free);
+static const struct pwm_ops ab8500_pwm_ops = {
+ .config = ab8500_pwm_config,
+ .enable = ab8500_pwm_enable,
+ .disable = ab8500_pwm_disable,
+};
static int __devinit ab8500_pwm_probe(struct platform_device *pdev)
{
- struct pwm_device *pwm;
+ struct ab8500_pwm_chip *ab8500;
+ int err;
+
/*
* Nothing to be done in probe, this is required to get the
* device which is required for ab8500 read and write
*/
- pwm = kzalloc(sizeof(struct pwm_device), GFP_KERNEL);
- if (pwm == NULL) {
+ ab8500 = kzalloc(sizeof(*ab8500), GFP_KERNEL);
+ if (ab8500 == NULL) {
dev_err(&pdev->dev, "failed to allocate memory\n");
return -ENOMEM;
}
- pwm->dev = &pdev->dev;
- pwm->pwm_id = pdev->id;
- list_add_tail(&pwm->node, &pwm_list);
- platform_set_drvdata(pdev, pwm);
- dev_dbg(pwm->dev, "pwm probe successful\n");
+
+ ab8500->chip.dev = &pdev->dev;
+ ab8500->chip.ops = &ab8500_pwm_ops;
+ ab8500->chip.base = pdev->id;
+ ab8500->chip.npwm = 1;
+
+ err = pwmchip_add(&ab8500->chip);
+ if (err < 0) {
+ kfree(ab8500);
+ return err;
+ }
+
+ dev_dbg(&pdev->dev, "pwm probe successful\n");
+ platform_set_drvdata(pdev, ab8500);
+
return 0;
}
static int __devexit ab8500_pwm_remove(struct platform_device *pdev)
{
- struct pwm_device *pwm = platform_get_drvdata(pdev);
- list_del(&pwm->node);
+ struct ab8500_pwm_chip *ab8500 = platform_get_drvdata(pdev);
+ int err;
+
+ err = pwmchip_remove(&ab8500->chip);
+ if (err < 0)
+ return err;
+
dev_dbg(&pdev->dev, "pwm driver removed\n");
- kfree(pwm);
+ kfree(ab8500);
+
return 0;
}
.probe = ab8500_pwm_probe,
.remove = __devexit_p(ab8500_pwm_remove),
};
+module_platform_driver(ab8500_pwm_driver);
-static int __init ab8500_pwm_init(void)
-{
- return platform_driver_register(&ab8500_pwm_driver);
-}
-
-static void __exit ab8500_pwm_exit(void)
-{
- platform_driver_unregister(&ab8500_pwm_driver);
-}
-
-subsys_initcall(ab8500_pwm_init);
-module_exit(ab8500_pwm_exit);
MODULE_AUTHOR("Arun MURTHY <arun.murthy@stericsson.com>");
MODULE_DESCRIPTION("AB8500 Pulse Width Modulation Driver");
MODULE_ALIAS("platform:ab8500-pwm");
unsigned long period, duty;
unsigned long long val;
- if (duty_ns < 0 || duty_ns > period_ns)
- return -EINVAL;
-
val = (unsigned long long)get_sclk() * period_ns;
do_div(val, NSEC_PER_SEC);
period = val;
#include <linux/clk.h>
#include <linux/io.h>
#include <linux/pwm.h>
-#include <mach/hardware.h>
-
+#include <linux/of_device.h>
/* i.MX1 and i.MX21 share the same PWM function block: */
#define MX1_PWMS 0x04 /* PWM Sample Register */
#define MX1_PWMP 0x08 /* PWM Period Register */
+#define MX1_PWMC_EN (1 << 4)
/* i.MX27, i.MX31, i.MX35 share the same PWM function block: */
#define MX3_PWMCR_EN (1 << 0)
struct imx_chip {
- struct clk *clk;
+ struct clk *clk_per;
+ struct clk *clk_ipg;
- int clk_enabled;
+ int enabled;
void __iomem *mmio_base;
struct pwm_chip chip;
+
+ int (*config)(struct pwm_chip *chip,
+ struct pwm_device *pwm, int duty_ns, int period_ns);
+ void (*set_enable)(struct pwm_chip *chip, bool enable);
};
#define to_imx_chip(chip) container_of(chip, struct imx_chip, chip)
-static int imx_pwm_config(struct pwm_chip *chip,
+static int imx_pwm_config_v1(struct pwm_chip *chip,
struct pwm_device *pwm, int duty_ns, int period_ns)
{
struct imx_chip *imx = to_imx_chip(chip);
- if (!(cpu_is_mx1() || cpu_is_mx21())) {
- unsigned long long c;
- unsigned long period_cycles, duty_cycles, prescale;
- u32 cr;
-
- c = clk_get_rate(imx->clk);
- c = c * period_ns;
- do_div(c, 1000000000);
- period_cycles = c;
-
- prescale = period_cycles / 0x10000 + 1;
-
- period_cycles /= prescale;
- c = (unsigned long long)period_cycles * duty_ns;
- do_div(c, period_ns);
- duty_cycles = c;
-
- /*
- * according to imx pwm RM, the real period value should be
- * PERIOD value in PWMPR plus 2.
- */
- if (period_cycles > 2)
- period_cycles -= 2;
- else
- period_cycles = 0;
-
- writel(duty_cycles, imx->mmio_base + MX3_PWMSAR);
- writel(period_cycles, imx->mmio_base + MX3_PWMPR);
-
- cr = MX3_PWMCR_PRESCALER(prescale) |
- MX3_PWMCR_DOZEEN | MX3_PWMCR_WAITEN |
- MX3_PWMCR_DBGEN | MX3_PWMCR_EN;
-
- if (cpu_is_mx25())
- cr |= MX3_PWMCR_CLKSRC_IPG;
- else
- cr |= MX3_PWMCR_CLKSRC_IPG_HIGH;
-
- writel(cr, imx->mmio_base + MX3_PWMCR);
- } else if (cpu_is_mx1() || cpu_is_mx21()) {
- /* The PWM subsystem allows for exact frequencies. However,
- * I cannot connect a scope on my device to the PWM line and
- * thus cannot provide the program the PWM controller
- * exactly. Instead, I'm relying on the fact that the
- * Bootloader (u-boot or WinCE+haret) has programmed the PWM
- * function group already. So I'll just modify the PWM sample
- * register to follow the ratio of duty_ns vs. period_ns
- * accordingly.
- *
- * This is good enough for programming the brightness of
- * the LCD backlight.
- *
- * The real implementation would divide PERCLK[0] first by
- * both the prescaler (/1 .. /128) and then by CLKSEL
- * (/2 .. /16).
- */
- u32 max = readl(imx->mmio_base + MX1_PWMP);
- u32 p = max * duty_ns / period_ns;
- writel(max - p, imx->mmio_base + MX1_PWMS);
- } else {
- BUG();
- }
+ /*
+ * The PWM subsystem allows for exact frequencies. However,
+ * I cannot connect a scope on my device to the PWM line and
+ * thus cannot provide the program the PWM controller
+ * exactly. Instead, I'm relying on the fact that the
+ * Bootloader (u-boot or WinCE+haret) has programmed the PWM
+ * function group already. So I'll just modify the PWM sample
+ * register to follow the ratio of duty_ns vs. period_ns
+ * accordingly.
+ *
+ * This is good enough for programming the brightness of
+ * the LCD backlight.
+ *
+ * The real implementation would divide PERCLK[0] first by
+ * both the prescaler (/1 .. /128) and then by CLKSEL
+ * (/2 .. /16).
+ */
+ u32 max = readl(imx->mmio_base + MX1_PWMP);
+ u32 p = max * duty_ns / period_ns;
+ writel(max - p, imx->mmio_base + MX1_PWMS);
return 0;
}
+static void imx_pwm_set_enable_v1(struct pwm_chip *chip, bool enable)
+{
+ struct imx_chip *imx = to_imx_chip(chip);
+ u32 val;
+
+ val = readl(imx->mmio_base + MX1_PWMC);
+
+ if (enable)
+ val |= MX1_PWMC_EN;
+ else
+ val &= ~MX1_PWMC_EN;
+
+ writel(val, imx->mmio_base + MX1_PWMC);
+}
+
+static int imx_pwm_config_v2(struct pwm_chip *chip,
+ struct pwm_device *pwm, int duty_ns, int period_ns)
+{
+ struct imx_chip *imx = to_imx_chip(chip);
+ unsigned long long c;
+ unsigned long period_cycles, duty_cycles, prescale;
+ u32 cr;
+
+ c = clk_get_rate(imx->clk_per);
+ c = c * period_ns;
+ do_div(c, 1000000000);
+ period_cycles = c;
+
+ prescale = period_cycles / 0x10000 + 1;
+
+ period_cycles /= prescale;
+ c = (unsigned long long)period_cycles * duty_ns;
+ do_div(c, period_ns);
+ duty_cycles = c;
+
+ /*
+ * according to imx pwm RM, the real period value should be
+ * PERIOD value in PWMPR plus 2.
+ */
+ if (period_cycles > 2)
+ period_cycles -= 2;
+ else
+ period_cycles = 0;
+
+ writel(duty_cycles, imx->mmio_base + MX3_PWMSAR);
+ writel(period_cycles, imx->mmio_base + MX3_PWMPR);
+
+ cr = MX3_PWMCR_PRESCALER(prescale) |
+ MX3_PWMCR_DOZEEN | MX3_PWMCR_WAITEN |
+ MX3_PWMCR_DBGEN | MX3_PWMCR_CLKSRC_IPG_HIGH;
+
+ if (imx->enabled)
+ cr |= MX3_PWMCR_EN;
+
+ writel(cr, imx->mmio_base + MX3_PWMCR);
+
+ return 0;
+}
+
+static void imx_pwm_set_enable_v2(struct pwm_chip *chip, bool enable)
+{
+ struct imx_chip *imx = to_imx_chip(chip);
+ u32 val;
+
+ val = readl(imx->mmio_base + MX3_PWMCR);
+
+ if (enable)
+ val |= MX3_PWMCR_EN;
+ else
+ val &= ~MX3_PWMCR_EN;
+
+ writel(val, imx->mmio_base + MX3_PWMCR);
+}
+
+static int imx_pwm_config(struct pwm_chip *chip,
+ struct pwm_device *pwm, int duty_ns, int period_ns)
+{
+ struct imx_chip *imx = to_imx_chip(chip);
+ int ret;
+
+ ret = clk_prepare_enable(imx->clk_ipg);
+ if (ret)
+ return ret;
+
+ ret = imx->config(chip, pwm, duty_ns, period_ns);
+
+ clk_disable_unprepare(imx->clk_ipg);
+
+ return ret;
+}
+
static int imx_pwm_enable(struct pwm_chip *chip, struct pwm_device *pwm)
{
struct imx_chip *imx = to_imx_chip(chip);
- int rc = 0;
+ int ret;
- if (!imx->clk_enabled) {
- rc = clk_prepare_enable(imx->clk);
- if (!rc)
- imx->clk_enabled = 1;
- }
- return rc;
+ ret = clk_prepare_enable(imx->clk_per);
+ if (ret)
+ return ret;
+
+ imx->set_enable(chip, true);
+
+ imx->enabled = 1;
+
+ return 0;
}
static void imx_pwm_disable(struct pwm_chip *chip, struct pwm_device *pwm)
{
struct imx_chip *imx = to_imx_chip(chip);
- writel(0, imx->mmio_base + MX3_PWMCR);
+ imx->set_enable(chip, false);
- if (imx->clk_enabled) {
- clk_disable_unprepare(imx->clk);
- imx->clk_enabled = 0;
- }
+ clk_disable_unprepare(imx->clk_per);
+ imx->enabled = 0;
}
static struct pwm_ops imx_pwm_ops = {
.owner = THIS_MODULE,
};
+struct imx_pwm_data {
+ int (*config)(struct pwm_chip *chip,
+ struct pwm_device *pwm, int duty_ns, int period_ns);
+ void (*set_enable)(struct pwm_chip *chip, bool enable);
+};
+
+static struct imx_pwm_data imx_pwm_data_v1 = {
+ .config = imx_pwm_config_v1,
+ .set_enable = imx_pwm_set_enable_v1,
+};
+
+static struct imx_pwm_data imx_pwm_data_v2 = {
+ .config = imx_pwm_config_v2,
+ .set_enable = imx_pwm_set_enable_v2,
+};
+
+static const struct of_device_id imx_pwm_dt_ids[] = {
+ { .compatible = "fsl,imx1-pwm", .data = &imx_pwm_data_v1, },
+ { .compatible = "fsl,imx27-pwm", .data = &imx_pwm_data_v2, },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, imx_pwm_dt_ids);
+
static int __devinit imx_pwm_probe(struct platform_device *pdev)
{
+ const struct of_device_id *of_id =
+ of_match_device(imx_pwm_dt_ids, &pdev->dev);
+ struct imx_pwm_data *data;
struct imx_chip *imx;
struct resource *r;
int ret = 0;
+ if (!of_id)
+ return -ENODEV;
+
imx = devm_kzalloc(&pdev->dev, sizeof(*imx), GFP_KERNEL);
if (imx == NULL) {
dev_err(&pdev->dev, "failed to allocate memory\n");
return -ENOMEM;
}
- imx->clk = devm_clk_get(&pdev->dev, "pwm");
+ imx->clk_per = devm_clk_get(&pdev->dev, "per");
+ if (IS_ERR(imx->clk_per)) {
+ dev_err(&pdev->dev, "getting per clock failed with %ld\n",
+ PTR_ERR(imx->clk_per));
+ return PTR_ERR(imx->clk_per);
+ }
- if (IS_ERR(imx->clk))
- return PTR_ERR(imx->clk);
+ imx->clk_ipg = devm_clk_get(&pdev->dev, "ipg");
+ if (IS_ERR(imx->clk_ipg)) {
+ dev_err(&pdev->dev, "getting ipg clock failed with %ld\n",
+ PTR_ERR(imx->clk_ipg));
+ return PTR_ERR(imx->clk_ipg);
+ }
imx->chip.ops = &imx_pwm_ops;
imx->chip.dev = &pdev->dev;
imx->chip.base = -1;
imx->chip.npwm = 1;
- imx->clk_enabled = 0;
-
r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (r == NULL) {
dev_err(&pdev->dev, "no memory resource defined\n");
if (imx->mmio_base == NULL)
return -EADDRNOTAVAIL;
+ data = of_id->data;
+ imx->config = data->config;
+ imx->set_enable = data->set_enable;
+
ret = pwmchip_add(&imx->chip);
if (ret < 0)
return ret;
static struct platform_driver imx_pwm_driver = {
.driver = {
- .name = "mxc_pwm",
+ .name = "imx-pwm",
+ .of_match_table = of_match_ptr(imx_pwm_dt_ids),
},
.probe = imx_pwm_probe,
.remove = __devexit_p(imx_pwm_remove),
};
-static int __init imx_pwm_init(void)
-{
- return platform_driver_register(&imx_pwm_driver);
-}
-arch_initcall(imx_pwm_init);
-
-static void __exit imx_pwm_exit(void)
-{
- platform_driver_unregister(&imx_pwm_driver);
-}
-module_exit(imx_pwm_exit);
+module_platform_driver(imx_pwm_driver);
MODULE_LICENSE("GPL v2");
MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>");
--- /dev/null
+/*
+ * Copyright (C) 2010, Lars-Peter Clausen <lars@metafoo.de>
+ * JZ4740 platform PWM support
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#include <linux/clk.h>
+#include <linux/err.h>
+#include <linux/gpio.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/pwm.h>
+
+#include <asm/mach-jz4740/gpio.h>
+#include <asm/mach-jz4740/timer.h>
+
+#define NUM_PWM 8
+
+static const unsigned int jz4740_pwm_gpio_list[NUM_PWM] = {
+ JZ_GPIO_PWM0,
+ JZ_GPIO_PWM1,
+ JZ_GPIO_PWM2,
+ JZ_GPIO_PWM3,
+ JZ_GPIO_PWM4,
+ JZ_GPIO_PWM5,
+ JZ_GPIO_PWM6,
+ JZ_GPIO_PWM7,
+};
+
+struct jz4740_pwm_chip {
+ struct pwm_chip chip;
+ struct clk *clk;
+};
+
+static inline struct jz4740_pwm_chip *to_jz4740(struct pwm_chip *chip)
+{
+ return container_of(chip, struct jz4740_pwm_chip, chip);
+}
+
+static int jz4740_pwm_request(struct pwm_chip *chip, struct pwm_device *pwm)
+{
+ unsigned int gpio = jz4740_pwm_gpio_list[pwm->hwpwm];
+ int ret;
+
+ /*
+ * Timers 0 and 1 are used for system tasks, so they are unavailable
+ * for use as PWMs.
+ */
+ if (pwm->hwpwm < 2)
+ return -EBUSY;
+
+ ret = gpio_request(gpio, pwm->label);
+ if (ret) {
+ dev_err(chip->dev, "Failed to request GPIO#%u for PWM: %d\n",
+ gpio, ret);
+ return ret;
+ }
+
+ jz_gpio_set_function(gpio, JZ_GPIO_FUNC_PWM);
+
+ jz4740_timer_start(pwm->hwpwm);
+
+ return 0;
+}
+
+static void jz4740_pwm_free(struct pwm_chip *chip, struct pwm_device *pwm)
+{
+ unsigned int gpio = jz4740_pwm_gpio_list[pwm->hwpwm];
+
+ jz4740_timer_set_ctrl(pwm->hwpwm, 0);
+
+ jz_gpio_set_function(gpio, JZ_GPIO_FUNC_NONE);
+ gpio_free(gpio);
+
+ jz4740_timer_stop(pwm->hwpwm);
+}
+
+static int jz4740_pwm_enable(struct pwm_chip *chip, struct pwm_device *pwm)
+{
+ uint32_t ctrl = jz4740_timer_get_ctrl(pwm->pwm);
+
+ ctrl |= JZ_TIMER_CTRL_PWM_ENABLE;
+ jz4740_timer_set_ctrl(pwm->hwpwm, ctrl);
+ jz4740_timer_enable(pwm->hwpwm);
+
+ return 0;
+}
+
+static void jz4740_pwm_disable(struct pwm_chip *chip, struct pwm_device *pwm)
+{
+ uint32_t ctrl = jz4740_timer_get_ctrl(pwm->hwpwm);
+
+ ctrl &= ~JZ_TIMER_CTRL_PWM_ENABLE;
+ jz4740_timer_disable(pwm->hwpwm);
+ jz4740_timer_set_ctrl(pwm->hwpwm, ctrl);
+}
+
+static int jz4740_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
+ int duty_ns, int period_ns)
+{
+ struct jz4740_pwm_chip *jz4740 = to_jz4740(pwm->chip);
+ unsigned long long tmp;
+ unsigned long period, duty;
+ unsigned int prescaler = 0;
+ uint16_t ctrl;
+ bool is_enabled;
+
+ tmp = (unsigned long long)clk_get_rate(jz4740->clk) * period_ns;
+ do_div(tmp, 1000000000);
+ period = tmp;
+
+ while (period > 0xffff && prescaler < 6) {
+ period >>= 2;
+ ++prescaler;
+ }
+
+ if (prescaler == 6)
+ return -EINVAL;
+
+ tmp = (unsigned long long)period * duty_ns;
+ do_div(tmp, period_ns);
+ duty = period - tmp;
+
+ if (duty >= period)
+ duty = period - 1;
+
+ is_enabled = jz4740_timer_is_enabled(pwm->hwpwm);
+ if (is_enabled)
+ jz4740_pwm_disable(chip, pwm);
+
+ jz4740_timer_set_count(pwm->hwpwm, 0);
+ jz4740_timer_set_duty(pwm->hwpwm, duty);
+ jz4740_timer_set_period(pwm->hwpwm, period);
+
+ ctrl = JZ_TIMER_CTRL_PRESCALER(prescaler) | JZ_TIMER_CTRL_SRC_EXT |
+ JZ_TIMER_CTRL_PWM_ABBRUPT_SHUTDOWN;
+
+ jz4740_timer_set_ctrl(pwm->hwpwm, ctrl);
+
+ if (is_enabled)
+ jz4740_pwm_enable(chip, pwm);
+
+ return 0;
+}
+
+static const struct pwm_ops jz4740_pwm_ops = {
+ .request = jz4740_pwm_request,
+ .free = jz4740_pwm_free,
+ .config = jz4740_pwm_config,
+ .enable = jz4740_pwm_enable,
+ .disable = jz4740_pwm_disable,
+ .owner = THIS_MODULE,
+};
+
+static int __devinit jz4740_pwm_probe(struct platform_device *pdev)
+{
+ struct jz4740_pwm_chip *jz4740;
+ int ret;
+
+ jz4740 = devm_kzalloc(&pdev->dev, sizeof(*jz4740), GFP_KERNEL);
+ if (!jz4740)
+ return -ENOMEM;
+
+ jz4740->clk = clk_get(NULL, "ext");
+ if (IS_ERR(jz4740->clk))
+ return PTR_ERR(jz4740->clk);
+
+ jz4740->chip.dev = &pdev->dev;
+ jz4740->chip.ops = &jz4740_pwm_ops;
+ jz4740->chip.npwm = NUM_PWM;
+ jz4740->chip.base = -1;
+
+ ret = pwmchip_add(&jz4740->chip);
+ if (ret < 0) {
+ clk_put(jz4740->clk);
+ return ret;
+ }
+
+ platform_set_drvdata(pdev, jz4740);
+
+ return 0;
+}
+
+static int __devexit jz4740_pwm_remove(struct platform_device *pdev)
+{
+ struct jz4740_pwm_chip *jz4740 = platform_get_drvdata(pdev);
+ int ret;
+
+ ret = pwmchip_remove(&jz4740->chip);
+ if (ret < 0)
+ return ret;
+
+ clk_put(jz4740->clk);
+
+ return 0;
+}
+
+static struct platform_driver jz4740_pwm_driver = {
+ .driver = {
+ .name = "jz4740-pwm",
+ .owner = THIS_MODULE,
+ },
+ .probe = jz4740_pwm_probe,
+ .remove = __devexit_p(jz4740_pwm_remove),
+};
+module_platform_driver(jz4740_pwm_driver);
+
+MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
+MODULE_DESCRIPTION("Ingenic JZ4740 PWM driver");
+MODULE_ALIAS("platform:jz4740-pwm");
+MODULE_LICENSE("GPL");
--- /dev/null
+/*
+ * linux/arch/unicore32/kernel/pwm.c
+ *
+ * Code specific to PKUnity SoC and UniCore ISA
+ *
+ * Maintained by GUAN Xue-tao <gxt@mprc.pku.edu.cn>
+ * Copyright (C) 2001-2010 Guan Xuetao
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/err.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+#include <linux/pwm.h>
+
+#include <asm/div64.h>
+#include <mach/hardware.h>
+
+struct puv3_pwm_chip {
+ struct pwm_chip chip;
+ void __iomem *base;
+ struct clk *clk;
+ bool enabled;
+};
+
+static inline struct puv3_pwm_chip *to_puv3(struct pwm_chip *chip)
+{
+ return container_of(chip, struct puv3_pwm_chip, chip);
+}
+
+/*
+ * period_ns = 10^9 * (PRESCALE + 1) * (PV + 1) / PWM_CLK_RATE
+ * duty_ns = 10^9 * (PRESCALE + 1) * DC / PWM_CLK_RATE
+ */
+static int puv3_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
+ int duty_ns, int period_ns)
+{
+ unsigned long period_cycles, prescale, pv, dc;
+ struct puv3_pwm_chip *puv3 = to_puv3(chip);
+ unsigned long long c;
+
+ c = clk_get_rate(puv3->clk);
+ c = c * period_ns;
+ do_div(c, 1000000000);
+ period_cycles = c;
+
+ if (period_cycles < 1)
+ period_cycles = 1;
+
+ prescale = (period_cycles - 1) / 1024;
+ pv = period_cycles / (prescale + 1) - 1;
+
+ if (prescale > 63)
+ return -EINVAL;
+
+ if (duty_ns == period_ns)
+ dc = OST_PWMDCCR_FDCYCLE;
+ else
+ dc = (pv + 1) * duty_ns / period_ns;
+
+ /*
+ * NOTE: the clock to PWM has to be enabled first
+ * before writing to the registers
+ */
+ clk_prepare_enable(puv3->clk);
+
+ writel(prescale, puv3->base + OST_PWM_PWCR);
+ writel(pv - dc, puv3->base + OST_PWM_DCCR);
+ writel(pv, puv3->base + OST_PWM_PCR);
+
+ clk_disable_unprepare(puv3->clk);
+
+ return 0;
+}
+
+static int puv3_pwm_enable(struct pwm_chip *chip, struct pwm_device *pwm)
+{
+ struct puv3_pwm_chip *puv3 = to_puv3(chip);
+
+ return clk_prepare_enable(puv3->clk);
+}
+
+static void puv3_pwm_disable(struct pwm_chip *chip, struct pwm_device *pwm)
+{
+ struct puv3_pwm_chip *puv3 = to_puv3(chip);
+
+ clk_disable_unprepare(puv3->clk);
+}
+
+static const struct pwm_ops puv3_pwm_ops = {
+ .config = puv3_pwm_config,
+ .enable = puv3_pwm_enable,
+ .disable = puv3_pwm_disable,
+ .owner = THIS_MODULE,
+};
+
+static int __devinit pwm_probe(struct platform_device *pdev)
+{
+ struct puv3_pwm_chip *puv3;
+ struct resource *r;
+ int ret;
+
+ puv3 = devm_kzalloc(&pdev->dev, sizeof(*puv3), GFP_KERNEL);
+ if (puv3 == NULL) {
+ dev_err(&pdev->dev, "failed to allocate memory\n");
+ return -ENOMEM;
+ }
+
+ puv3->clk = devm_clk_get(&pdev->dev, "OST_CLK");
+ if (IS_ERR(puv3->clk))
+ return PTR_ERR(puv3->clk);
+
+ r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (r == NULL) {
+ dev_err(&pdev->dev, "no memory resource defined\n");
+ return -ENODEV;
+ }
+
+ puv3->base = devm_request_and_ioremap(&pdev->dev, r);
+ if (puv3->base == NULL)
+ return -EADDRNOTAVAIL;
+
+ puv3->chip.dev = &pdev->dev;
+ puv3->chip.ops = &puv3_pwm_ops;
+ puv3->chip.base = -1;
+ puv3->chip.npwm = 1;
+
+ ret = pwmchip_add(&puv3->chip);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "pwmchip_add() failed: %d\n", ret);
+ return ret;
+ }
+
+ platform_set_drvdata(pdev, puv3);
+ return 0;
+}
+
+static int __devexit pwm_remove(struct platform_device *pdev)
+{
+ struct puv3_pwm_chip *puv3 = platform_get_drvdata(pdev);
+
+ return pwmchip_remove(&puv3->chip);
+}
+
+static struct platform_driver puv3_pwm_driver = {
+ .driver = {
+ .name = "PKUnity-v3-PWM",
+ },
+ .probe = pwm_probe,
+ .remove = __devexit_p(pwm_remove),
+};
+module_platform_driver(puv3_pwm_driver);
+
+MODULE_LICENSE("GPL v2");
unsigned long offset;
int rc;
- if (period_ns == 0 || duty_ns > period_ns)
- return -EINVAL;
-
offset = pwm->hwpwm ? 0x10 : 0;
c = clk_get_rate(pc->clk);
if (period_ns > NS_IN_HZ || duty_ns > NS_IN_HZ)
return -ERANGE;
- if (duty_ns > period_ns)
- return -EINVAL;
-
if (period_ns == s3c->period_ns &&
duty_ns == s3c->duty_ns)
return 0;
#define CAP3 0x10
#define CAP4 0x14
#define ECCTL2 0x2A
+#define ECCTL2_APWM_POL_LOW BIT(10)
#define ECCTL2_APWM_MODE BIT(9)
#define ECCTL2_SYNC_SEL_DISA (BIT(7) | BIT(6))
#define ECCTL2_TSCTR_FREERUN BIT(4)
unsigned long period_cycles, duty_cycles;
unsigned int reg_val;
- if (period_ns < 0 || duty_ns < 0 || period_ns > NSEC_PER_SEC)
+ if (period_ns > NSEC_PER_SEC)
return -ERANGE;
c = pc->clk_rate;
return 0;
}
+static int ecap_pwm_set_polarity(struct pwm_chip *chip, struct pwm_device *pwm,
+ enum pwm_polarity polarity)
+{
+ struct ecap_pwm_chip *pc = to_ecap_pwm_chip(chip);
+ unsigned short reg_val;
+
+ pm_runtime_get_sync(pc->chip.dev);
+ reg_val = readw(pc->mmio_base + ECCTL2);
+ if (polarity == PWM_POLARITY_INVERSED)
+ /* Duty cycle defines LOW period of PWM */
+ reg_val |= ECCTL2_APWM_POL_LOW;
+ else
+ /* Duty cycle defines HIGH period of PWM */
+ reg_val &= ~ECCTL2_APWM_POL_LOW;
+
+ writew(reg_val, pc->mmio_base + ECCTL2);
+ pm_runtime_put_sync(pc->chip.dev);
+ return 0;
+}
+
static int ecap_pwm_enable(struct pwm_chip *chip, struct pwm_device *pwm)
{
struct ecap_pwm_chip *pc = to_ecap_pwm_chip(chip);
static const struct pwm_ops ecap_pwm_ops = {
.free = ecap_pwm_free,
.config = ecap_pwm_config,
+ .set_polarity = ecap_pwm_set_polarity,
.enable = ecap_pwm_enable,
.disable = ecap_pwm_disable,
.owner = THIS_MODULE,
#define AQCTL_ZRO_FRCHIGH BIT(1)
#define AQCTL_ZRO_FRCTOGGLE (BIT(1) | BIT(0))
+#define AQCTL_CHANA_POLNORMAL (AQCTL_CAU_FRCLOW | AQCTL_PRD_FRCHIGH | \
+ AQCTL_ZRO_FRCHIGH)
+#define AQCTL_CHANA_POLINVERSED (AQCTL_CAU_FRCHIGH | AQCTL_PRD_FRCLOW | \
+ AQCTL_ZRO_FRCLOW)
+#define AQCTL_CHANB_POLNORMAL (AQCTL_CBU_FRCLOW | AQCTL_PRD_FRCHIGH | \
+ AQCTL_ZRO_FRCHIGH)
+#define AQCTL_CHANB_POLINVERSED (AQCTL_CBU_FRCHIGH | AQCTL_PRD_FRCLOW | \
+ AQCTL_ZRO_FRCLOW)
+
#define AQSFRC_RLDCSF_MASK (BIT(7) | BIT(6))
#define AQSFRC_RLDCSF_ZRO 0
#define AQSFRC_RLDCSF_PRD BIT(6)
unsigned int clk_rate;
void __iomem *mmio_base;
unsigned long period_cycles[NUM_PWM_CHANNEL];
+ enum pwm_polarity polarity[NUM_PWM_CHANNEL];
};
static inline struct ehrpwm_pwm_chip *to_ehrpwm_pwm_chip(struct pwm_chip *chip)
return 1;
}
-static void configure_chans(struct ehrpwm_pwm_chip *pc, int chan,
- unsigned long duty_cycles)
+static void configure_polarity(struct ehrpwm_pwm_chip *pc, int chan)
{
- int cmp_reg, aqctl_reg;
+ int aqctl_reg;
unsigned short aqctl_val, aqctl_mask;
/*
- * Channels can be configured from action qualifier module.
- * Channel 0 configured with compare A register and for
- * up-counter mode.
- * Channel 1 configured with compare B register and for
- * up-counter mode.
+ * Configure PWM output to HIGH/LOW level on counter
+ * reaches compare register value and LOW/HIGH level
+ * on counter value reaches period register value and
+ * zero value on counter
*/
if (chan == 1) {
aqctl_reg = AQCTLB;
- cmp_reg = CMPB;
- /* Configure PWM Low from compare B value */
- aqctl_val = AQCTL_CBU_FRCLOW;
aqctl_mask = AQCTL_CBU_MASK;
+
+ if (pc->polarity[chan] == PWM_POLARITY_INVERSED)
+ aqctl_val = AQCTL_CHANB_POLINVERSED;
+ else
+ aqctl_val = AQCTL_CHANB_POLNORMAL;
} else {
- cmp_reg = CMPA;
aqctl_reg = AQCTLA;
- /* Configure PWM Low from compare A value*/
- aqctl_val = AQCTL_CAU_FRCLOW;
aqctl_mask = AQCTL_CAU_MASK;
+
+ if (pc->polarity[chan] == PWM_POLARITY_INVERSED)
+ aqctl_val = AQCTL_CHANA_POLINVERSED;
+ else
+ aqctl_val = AQCTL_CHANA_POLNORMAL;
}
- /* Configure PWM High from period value and zero value */
- aqctl_val |= AQCTL_PRD_FRCHIGH | AQCTL_ZRO_FRCHIGH;
aqctl_mask |= AQCTL_PRD_MASK | AQCTL_ZRO_MASK;
- ehrpwm_modify(pc->mmio_base, aqctl_reg, aqctl_mask, aqctl_val);
-
- ehrpwm_write(pc->mmio_base, cmp_reg, duty_cycles);
+ ehrpwm_modify(pc->mmio_base, aqctl_reg, aqctl_mask, aqctl_val);
}
/*
unsigned long long c;
unsigned long period_cycles, duty_cycles;
unsigned short ps_divval, tb_divval;
- int i;
+ int i, cmp_reg;
- if (period_ns < 0 || duty_ns < 0 || period_ns > NSEC_PER_SEC)
+ if (period_ns > NSEC_PER_SEC)
return -ERANGE;
c = pc->clk_rate;
ehrpwm_modify(pc->mmio_base, TBCTL, TBCTL_CTRMODE_MASK,
TBCTL_CTRMODE_UP);
- /* Configure the channel for duty cycle */
- configure_chans(pc, pwm->hwpwm, duty_cycles);
+ if (pwm->hwpwm == 1)
+ /* Channel 1 configured with compare B register */
+ cmp_reg = CMPB;
+ else
+ /* Channel 0 configured with compare A register */
+ cmp_reg = CMPA;
+
+ ehrpwm_write(pc->mmio_base, cmp_reg, duty_cycles);
+
pm_runtime_put_sync(chip->dev);
return 0;
}
+static int ehrpwm_pwm_set_polarity(struct pwm_chip *chip,
+ struct pwm_device *pwm, enum pwm_polarity polarity)
+{
+ struct ehrpwm_pwm_chip *pc = to_ehrpwm_pwm_chip(chip);
+
+ /* Configuration of polarity in hardware delayed, do at enable */
+ pc->polarity[pwm->hwpwm] = polarity;
+ return 0;
+}
+
static int ehrpwm_pwm_enable(struct pwm_chip *chip, struct pwm_device *pwm)
{
struct ehrpwm_pwm_chip *pc = to_ehrpwm_pwm_chip(chip);
ehrpwm_modify(pc->mmio_base, AQCSFRC, aqcsfrc_mask, aqcsfrc_val);
+ /* Channels polarity can be configured from action qualifier module */
+ configure_polarity(pc, pwm->hwpwm);
+
/* Enable time counter for free_run */
ehrpwm_modify(pc->mmio_base, TBCTL, TBCTL_RUN_MASK, TBCTL_FREE_RUN);
return 0;
static const struct pwm_ops ehrpwm_pwm_ops = {
.free = ehrpwm_pwm_free,
.config = ehrpwm_pwm_config,
+ .set_polarity = ehrpwm_pwm_set_polarity,
.enable = ehrpwm_pwm_enable,
.disable = ehrpwm_pwm_disable,
.owner = THIS_MODULE,
size_t count);
static ssize_t dcssblk_remove_store(struct device * dev, struct device_attribute *attr, const char * buf,
size_t count);
-static ssize_t dcssblk_save_store(struct device * dev, struct device_attribute *attr, const char * buf,
- size_t count);
-static ssize_t dcssblk_save_show(struct device *dev, struct device_attribute *attr, char *buf);
-static ssize_t dcssblk_shared_store(struct device * dev, struct device_attribute *attr, const char * buf,
- size_t count);
-static ssize_t dcssblk_shared_show(struct device *dev, struct device_attribute *attr, char *buf);
-static ssize_t dcssblk_seglist_show(struct device *dev,
- struct device_attribute *attr,
- char *buf);
static DEVICE_ATTR(add, S_IWUSR, NULL, dcssblk_add_store);
static DEVICE_ATTR(remove, S_IWUSR, NULL, dcssblk_remove_store);
-static DEVICE_ATTR(save, S_IWUSR | S_IRUSR, dcssblk_save_show,
- dcssblk_save_store);
-static DEVICE_ATTR(shared, S_IWUSR | S_IRUSR, dcssblk_shared_show,
- dcssblk_shared_store);
-static DEVICE_ATTR(seglist, S_IRUSR, dcssblk_seglist_show, NULL);
static struct device *dcssblk_root_dev;
up_write(&dcssblk_devices_sem);
return rc;
}
+static DEVICE_ATTR(shared, S_IWUSR | S_IRUSR, dcssblk_shared_show,
+ dcssblk_shared_store);
/*
* device attribute for save operation on current copy
up_write(&dcssblk_devices_sem);
return count;
}
+static DEVICE_ATTR(save, S_IWUSR | S_IRUSR, dcssblk_save_show,
+ dcssblk_save_store);
/*
* device attribute for showing all segments in a device
up_read(&dcssblk_devices_sem);
return i;
}
+static DEVICE_ATTR(seglist, S_IRUSR, dcssblk_seglist_show, NULL);
+
+static struct attribute *dcssblk_dev_attrs[] = {
+ &dev_attr_shared.attr,
+ &dev_attr_save.attr,
+ &dev_attr_seglist.attr,
+ NULL,
+};
+static struct attribute_group dcssblk_dev_attr_group = {
+ .attrs = dcssblk_dev_attrs,
+};
+static const struct attribute_group *dcssblk_dev_attr_groups[] = {
+ &dcssblk_dev_attr_group,
+ NULL,
+};
/*
* device attribute for adding devices
dev_set_name(&dev_info->dev, dev_info->segment_name);
dev_info->dev.release = dcssblk_release_segment;
+ dev_info->dev.groups = dcssblk_dev_attr_groups;
INIT_LIST_HEAD(&dev_info->lh);
dev_info->gd = alloc_disk(DCSSBLK_MINORS_PER_DISK);
if (dev_info->gd == NULL) {
* register the device
*/
rc = device_register(&dev_info->dev);
- if (rc) {
- module_put(THIS_MODULE);
- goto dev_list_del;
- }
- get_device(&dev_info->dev);
- rc = device_create_file(&dev_info->dev, &dev_attr_shared);
- if (rc)
- goto unregister_dev;
- rc = device_create_file(&dev_info->dev, &dev_attr_save);
- if (rc)
- goto unregister_dev;
- rc = device_create_file(&dev_info->dev, &dev_attr_seglist);
if (rc)
- goto unregister_dev;
+ goto put_dev;
+ get_device(&dev_info->dev);
add_disk(dev_info->gd);
switch (dev_info->segment_type) {
rc = count;
goto out;
-unregister_dev:
+put_dev:
list_del(&dev_info->lh);
blk_cleanup_queue(dev_info->dcssblk_queue);
dev_info->gd->queue = NULL;
put_disk(dev_info->gd);
- device_unregister(&dev_info->dev);
list_for_each_entry(seg_info, &dev_info->seg_list, lh) {
segment_unload(seg_info->segment_name);
}
#include "zcrypt_msgtype6.h"
#include "zcrypt_pcixcc.h"
#include "zcrypt_cca_key.h"
-#include "zcrypt_msgtype6.h"
#define PCIXCC_MIN_MOD_SIZE 16 /* 128 bits */
#define PCIXCC_MIN_MOD_SIZE_OLD 64 /* 512 bits */
ctio->u.status1.scsi_status =
__constant_cpu_to_le16(SS_RESPONSE_INFO_LEN_VALID);
ctio->u.status1.response_len = __constant_cpu_to_le16(8);
- ((uint32_t *)ctio->u.status1.sense_data)[0] = cpu_to_be32(resp_code);
+ ctio->u.status1.sense_data[0] = resp_code;
qla2x00_start_iocbs(ha, ha->req);
}
return 0;
}
-static u16 tcm_qla2xxx_get_fabric_sense_len(void)
-{
- return 0;
-}
-
-static u16 tcm_qla2xxx_set_fabric_sense_len(struct se_cmd *se_cmd,
- u32 sense_length)
-{
- return 0;
-}
-
/* Local pointer to allocated TCM configfs fabric module */
struct target_fabric_configfs *tcm_qla2xxx_fabric_configfs;
struct target_fabric_configfs *tcm_qla2xxx_npiv_fabric_configfs;
.queue_data_in = tcm_qla2xxx_queue_data_in,
.queue_status = tcm_qla2xxx_queue_status,
.queue_tm_rsp = tcm_qla2xxx_queue_tm_rsp,
- .get_fabric_sense_len = tcm_qla2xxx_get_fabric_sense_len,
- .set_fabric_sense_len = tcm_qla2xxx_set_fabric_sense_len,
/*
* Setup function pointers for generic logic in
* target_core_fabric_configfs.c
.queue_data_in = tcm_qla2xxx_queue_data_in,
.queue_status = tcm_qla2xxx_queue_status,
.queue_tm_rsp = tcm_qla2xxx_queue_tm_rsp,
- .get_fabric_sense_len = tcm_qla2xxx_get_fabric_sense_len,
- .set_fabric_sense_len = tcm_qla2xxx_set_fabric_sense_len,
/*
* Setup function pointers for generic logic in
* target_core_fabric_configfs.c
return 0;
}
-int iscsit_del_np_comm(struct iscsi_np *np)
+static int iscsit_del_np_comm(struct iscsi_np *np)
{
if (np->np_socket)
sock_release(np->np_socket);
hdr = (struct iscsi_scsi_req *) buf;
payload_length = ntoh24(hdr->dlength);
- hdr->itt = be32_to_cpu(hdr->itt);
- hdr->data_length = be32_to_cpu(hdr->data_length);
- hdr->cmdsn = be32_to_cpu(hdr->cmdsn);
- hdr->exp_statsn = be32_to_cpu(hdr->exp_statsn);
/* FIXME; Add checks for AdditionalHeaderSegment */
buf, conn);
}
- if ((hdr->data_length == payload_length) &&
+ if ((be32_to_cpu(hdr->data_length )== payload_length) &&
(!(hdr->flags & ISCSI_FLAG_CMD_FINAL))) {
pr_err("Expected Data Transfer Length and Length of"
" Immediate Data are the same, but ISCSI_FLAG_CMD_FINAL"
buf, conn);
}
- if (payload_length > hdr->data_length) {
+ if (payload_length > be32_to_cpu(hdr->data_length)) {
pr_err("DataSegmentLength: %u is greater than"
" EDTL: %u, protocol error.\n", payload_length,
hdr->data_length);
buf, conn);
}
- if (payload_length > conn->conn_ops->MaxRecvDataSegmentLength) {
+ if (payload_length > conn->conn_ops->MaxXmitDataSegmentLength) {
pr_err("DataSegmentLength: %u is greater than"
- " MaxRecvDataSegmentLength: %u, protocol error.\n",
- payload_length, conn->conn_ops->MaxRecvDataSegmentLength);
+ " MaxXmitDataSegmentLength: %u, protocol error.\n",
+ payload_length, conn->conn_ops->MaxXmitDataSegmentLength);
return iscsit_add_reject(ISCSI_REASON_PROTOCOL_ERROR, 1,
buf, conn);
}
spin_unlock_bh(&conn->sess->ttt_lock);
} else if (hdr->flags & ISCSI_FLAG_CMD_WRITE)
cmd->targ_xfer_tag = 0xFFFFFFFF;
- cmd->cmd_sn = hdr->cmdsn;
- cmd->exp_stat_sn = hdr->exp_statsn;
+ cmd->cmd_sn = be32_to_cpu(hdr->cmdsn);
+ cmd->exp_stat_sn = be32_to_cpu(hdr->exp_statsn);
cmd->first_burst_len = payload_length;
if (cmd->data_direction == DMA_FROM_DEVICE) {
* Initialize struct se_cmd descriptor from target_core_mod infrastructure
*/
transport_init_se_cmd(&cmd->se_cmd, &lio_target_fabric_configfs->tf_ops,
- conn->sess->se_sess, hdr->data_length, cmd->data_direction,
- sam_task_attr, &cmd->sense_buffer[0]);
+ conn->sess->se_sess, be32_to_cpu(hdr->data_length),
+ cmd->data_direction, sam_task_attr,
+ cmd->sense_buffer + 2);
pr_debug("Got SCSI Command, ITT: 0x%08x, CmdSN: 0x%08x,"
" ExpXferLen: %u, Length: %u, CID: %hu\n", hdr->itt,
1, 0, buf, cmd);
}
- iscsit_ack_from_expstatsn(conn, hdr->exp_statsn);
+ iscsit_ack_from_expstatsn(conn, be32_to_cpu(hdr->exp_statsn));
/*
* If no Immediate Data is attached, it's OK to return now.
hdr = (struct iscsi_data *) buf;
payload_length = ntoh24(hdr->dlength);
- hdr->itt = be32_to_cpu(hdr->itt);
- hdr->ttt = be32_to_cpu(hdr->ttt);
- hdr->exp_statsn = be32_to_cpu(hdr->exp_statsn);
- hdr->datasn = be32_to_cpu(hdr->datasn);
- hdr->offset = be32_to_cpu(hdr->offset);
if (!payload_length) {
pr_err("DataOUT payload is ZERO, protocol error.\n");
}
spin_unlock_bh(&conn->sess->session_stats_lock);
- if (payload_length > conn->conn_ops->MaxRecvDataSegmentLength) {
+ if (payload_length > conn->conn_ops->MaxXmitDataSegmentLength) {
pr_err("DataSegmentLength: %u is greater than"
- " MaxRecvDataSegmentLength: %u\n", payload_length,
- conn->conn_ops->MaxRecvDataSegmentLength);
+ " MaxXmitDataSegmentLength: %u\n", payload_length,
+ conn->conn_ops->MaxXmitDataSegmentLength);
return iscsit_add_reject(ISCSI_REASON_PROTOCOL_ERROR, 1,
buf, conn);
}
se_cmd = &cmd->se_cmd;
iscsit_mod_dataout_timer(cmd);
- if ((hdr->offset + payload_length) > cmd->se_cmd.data_length) {
+ if ((be32_to_cpu(hdr->offset) + payload_length) > cmd->se_cmd.data_length) {
pr_err("DataOut Offset: %u, Length %u greater than"
" iSCSI Command EDTL %u, protocol error.\n",
hdr->offset, payload_length, cmd->se_cmd.data_length);
rx_size += payload_length;
iov = &cmd->iov_data[0];
- iov_ret = iscsit_map_iovec(cmd, iov, hdr->offset, payload_length);
+ iov_ret = iscsit_map_iovec(cmd, iov, be32_to_cpu(hdr->offset),
+ payload_length);
if (iov_ret < 0)
return -1;
u32 data_crc;
data_crc = iscsit_do_crypto_hash_sg(&conn->conn_rx_hash, cmd,
- hdr->offset, payload_length, padding,
+ be32_to_cpu(hdr->offset),
+ payload_length, padding,
cmd->pad_bytes);
if (checksum != data_crc) {
hdr = (struct iscsi_nopout *) buf;
payload_length = ntoh24(hdr->dlength);
- hdr->itt = be32_to_cpu(hdr->itt);
- hdr->ttt = be32_to_cpu(hdr->ttt);
- hdr->cmdsn = be32_to_cpu(hdr->cmdsn);
- hdr->exp_statsn = be32_to_cpu(hdr->exp_statsn);
- if ((hdr->itt == 0xFFFFFFFF) && !(hdr->opcode & ISCSI_OP_IMMEDIATE)) {
+ if (hdr->itt == RESERVED_ITT && !(hdr->opcode & ISCSI_OP_IMMEDIATE)) {
pr_err("NOPOUT ITT is reserved, but Immediate Bit is"
" not set, protocol error.\n");
return iscsit_add_reject(ISCSI_REASON_PROTOCOL_ERROR, 1,
buf, conn);
}
- if (payload_length > conn->conn_ops->MaxRecvDataSegmentLength) {
+ if (payload_length > conn->conn_ops->MaxXmitDataSegmentLength) {
pr_err("NOPOUT Ping Data DataSegmentLength: %u is"
- " greater than MaxRecvDataSegmentLength: %u, protocol"
+ " greater than MaxXmitDataSegmentLength: %u, protocol"
" error.\n", payload_length,
- conn->conn_ops->MaxRecvDataSegmentLength);
+ conn->conn_ops->MaxXmitDataSegmentLength);
return iscsit_add_reject(ISCSI_REASON_PROTOCOL_ERROR, 1,
buf, conn);
}
pr_debug("Got NOPOUT Ping %s ITT: 0x%08x, TTT: 0x%09x,"
" CmdSN: 0x%08x, ExpStatSN: 0x%08x, Length: %u\n",
- (hdr->itt == 0xFFFFFFFF) ? "Response" : "Request",
+ hdr->itt == RESERVED_ITT ? "Response" : "Request",
hdr->itt, hdr->ttt, hdr->cmdsn, hdr->exp_statsn,
payload_length);
/*
* Either way, make sure we allocate an struct iscsi_cmd, as both
* can contain ping data.
*/
- if (hdr->ttt == 0xFFFFFFFF) {
+ if (hdr->ttt == cpu_to_be32(0xFFFFFFFF)) {
cmd = iscsit_allocate_cmd(conn, GFP_KERNEL);
if (!cmd)
return iscsit_add_reject(
1 : 0);
conn->sess->init_task_tag = cmd->init_task_tag = hdr->itt;
cmd->targ_xfer_tag = 0xFFFFFFFF;
- cmd->cmd_sn = hdr->cmdsn;
- cmd->exp_stat_sn = hdr->exp_statsn;
+ cmd->cmd_sn = be32_to_cpu(hdr->cmdsn);
+ cmd->exp_stat_sn = be32_to_cpu(hdr->exp_statsn);
cmd->data_direction = DMA_NONE;
}
- if (payload_length && (hdr->ttt == 0xFFFFFFFF)) {
+ if (payload_length && hdr->ttt == cpu_to_be32(0xFFFFFFFF)) {
rx_size = payload_length;
ping_data = kzalloc(payload_length + 1, GFP_KERNEL);
if (!ping_data) {
pr_debug("Ping Data: \"%s\"\n", ping_data);
}
- if (hdr->itt != 0xFFFFFFFF) {
+ if (hdr->itt != RESERVED_ITT) {
if (!cmd) {
pr_err("Checking CmdSN for NOPOUT,"
" but cmd is NULL!\n");
list_add_tail(&cmd->i_conn_node, &conn->conn_cmd_list);
spin_unlock_bh(&conn->cmd_lock);
- iscsit_ack_from_expstatsn(conn, hdr->exp_statsn);
+ iscsit_ack_from_expstatsn(conn, be32_to_cpu(hdr->exp_statsn));
if (hdr->opcode & ISCSI_OP_IMMEDIATE) {
iscsit_add_cmd_to_response_queue(cmd, conn,
return 0;
}
- if (hdr->ttt != 0xFFFFFFFF) {
+ if (hdr->ttt != cpu_to_be32(0xFFFFFFFF)) {
/*
* This was a response to a unsolicited NOPIN ping.
*/
- cmd = iscsit_find_cmd_from_ttt(conn, hdr->ttt);
+ cmd = iscsit_find_cmd_from_ttt(conn, be32_to_cpu(hdr->ttt));
if (!cmd)
return -1;
u8 function;
hdr = (struct iscsi_tm *) buf;
- hdr->itt = be32_to_cpu(hdr->itt);
- hdr->rtt = be32_to_cpu(hdr->rtt);
- hdr->cmdsn = be32_to_cpu(hdr->cmdsn);
- hdr->exp_statsn = be32_to_cpu(hdr->exp_statsn);
- hdr->refcmdsn = be32_to_cpu(hdr->refcmdsn);
- hdr->exp_datasn = be32_to_cpu(hdr->exp_datasn);
hdr->flags &= ~ISCSI_FLAG_CMD_FINAL;
function = hdr->flags;
if ((function != ISCSI_TM_FUNC_ABORT_TASK) &&
((function != ISCSI_TM_FUNC_TASK_REASSIGN) &&
- (hdr->rtt != ISCSI_RESERVED_TAG))) {
+ hdr->rtt != RESERVED_ITT)) {
pr_err("RefTaskTag should be set to 0xFFFFFFFF.\n");
- hdr->rtt = ISCSI_RESERVED_TAG;
+ hdr->rtt = RESERVED_ITT;
}
if ((function == ISCSI_TM_FUNC_TASK_REASSIGN) &&
buf, conn);
}
if ((function != ISCSI_TM_FUNC_ABORT_TASK) &&
- (hdr->refcmdsn != ISCSI_RESERVED_TAG))
- hdr->refcmdsn = ISCSI_RESERVED_TAG;
+ be32_to_cpu(hdr->refcmdsn) != ISCSI_RESERVED_TAG)
+ hdr->refcmdsn = cpu_to_be32(ISCSI_RESERVED_TAG);
cmd = iscsit_allocate_cmd(conn, GFP_KERNEL);
if (!cmd)
transport_init_se_cmd(&cmd->se_cmd,
&lio_target_fabric_configfs->tf_ops,
conn->sess->se_sess, 0, DMA_NONE,
- MSG_SIMPLE_TAG, &cmd->sense_buffer[0]);
+ MSG_SIMPLE_TAG, cmd->sense_buffer + 2);
switch (function) {
case ISCSI_TM_FUNC_ABORT_TASK:
cmd->immediate_cmd = ((hdr->opcode & ISCSI_OP_IMMEDIATE) ? 1 : 0);
cmd->init_task_tag = hdr->itt;
cmd->targ_xfer_tag = 0xFFFFFFFF;
- cmd->cmd_sn = hdr->cmdsn;
- cmd->exp_stat_sn = hdr->exp_statsn;
+ cmd->cmd_sn = be32_to_cpu(hdr->cmdsn);
+ cmd->exp_stat_sn = be32_to_cpu(hdr->exp_statsn);
se_tmr = cmd->se_cmd.se_tmr_req;
tmr_req = cmd->tmr_req;
/*
ISCSI_REASON_PROTOCOL_ERROR,
1, 0, buf, cmd);
}
- iscsit_ack_from_expstatsn(conn, hdr->exp_statsn);
+ iscsit_ack_from_expstatsn(conn, be32_to_cpu(hdr->exp_statsn));
if (out_of_order_cmdsn || !(hdr->opcode & ISCSI_OP_IMMEDIATE))
return 0;
hdr = (struct iscsi_text *) buf;
payload_length = ntoh24(hdr->dlength);
- hdr->itt = be32_to_cpu(hdr->itt);
- hdr->ttt = be32_to_cpu(hdr->ttt);
- hdr->cmdsn = be32_to_cpu(hdr->cmdsn);
- hdr->exp_statsn = be32_to_cpu(hdr->exp_statsn);
- if (payload_length > conn->conn_ops->MaxRecvDataSegmentLength) {
+ if (payload_length > conn->conn_ops->MaxXmitDataSegmentLength) {
pr_err("Unable to accept text parameter length: %u"
- "greater than MaxRecvDataSegmentLength %u.\n",
- payload_length, conn->conn_ops->MaxRecvDataSegmentLength);
+ "greater than MaxXmitDataSegmentLength %u.\n",
+ payload_length, conn->conn_ops->MaxXmitDataSegmentLength);
return iscsit_add_reject(ISCSI_REASON_PROTOCOL_ERROR, 1,
buf, conn);
}
cmd->immediate_cmd = ((hdr->opcode & ISCSI_OP_IMMEDIATE) ? 1 : 0);
conn->sess->init_task_tag = cmd->init_task_tag = hdr->itt;
cmd->targ_xfer_tag = 0xFFFFFFFF;
- cmd->cmd_sn = hdr->cmdsn;
- cmd->exp_stat_sn = hdr->exp_statsn;
+ cmd->cmd_sn = be32_to_cpu(hdr->cmdsn);
+ cmd->exp_stat_sn = be32_to_cpu(hdr->exp_statsn);
cmd->data_direction = DMA_NONE;
spin_lock_bh(&conn->cmd_lock);
list_add_tail(&cmd->i_conn_node, &conn->conn_cmd_list);
spin_unlock_bh(&conn->cmd_lock);
- iscsit_ack_from_expstatsn(conn, hdr->exp_statsn);
+ iscsit_ack_from_expstatsn(conn, be32_to_cpu(hdr->exp_statsn));
if (!(hdr->opcode & ISCSI_OP_IMMEDIATE)) {
cmdsn_ret = iscsit_sequence_cmd(conn, cmd, hdr->cmdsn);
hdr = (struct iscsi_logout *) buf;
reason_code = (hdr->flags & 0x7f);
- hdr->itt = be32_to_cpu(hdr->itt);
- hdr->cid = be16_to_cpu(hdr->cid);
- hdr->cmdsn = be32_to_cpu(hdr->cmdsn);
- hdr->exp_statsn = be32_to_cpu(hdr->exp_statsn);
if (tiqn) {
spin_lock(&tiqn->logout_stats.lock);
cmd->immediate_cmd = ((hdr->opcode & ISCSI_OP_IMMEDIATE) ? 1 : 0);
conn->sess->init_task_tag = cmd->init_task_tag = hdr->itt;
cmd->targ_xfer_tag = 0xFFFFFFFF;
- cmd->cmd_sn = hdr->cmdsn;
- cmd->exp_stat_sn = hdr->exp_statsn;
- cmd->logout_cid = hdr->cid;
+ cmd->cmd_sn = be32_to_cpu(hdr->cmdsn);
+ cmd->exp_stat_sn = be32_to_cpu(hdr->exp_statsn);
+ cmd->logout_cid = be16_to_cpu(hdr->cid);
cmd->logout_reason = reason_code;
cmd->data_direction = DMA_NONE;
*/
if ((reason_code == ISCSI_LOGOUT_REASON_CLOSE_SESSION) ||
((reason_code == ISCSI_LOGOUT_REASON_CLOSE_CONNECTION) &&
- (hdr->cid == conn->cid)))
+ be16_to_cpu(hdr->cid) == conn->cid))
logout_remove = 1;
spin_lock_bh(&conn->cmd_lock);
spin_unlock_bh(&conn->cmd_lock);
if (reason_code != ISCSI_LOGOUT_REASON_RECOVERY)
- iscsit_ack_from_expstatsn(conn, hdr->exp_statsn);
+ iscsit_ack_from_expstatsn(conn, be32_to_cpu(hdr->exp_statsn));
/*
* Immediate commands are executed, well, immediately.
hdr = (struct iscsi_snack *) buf;
hdr->flags &= ~ISCSI_FLAG_CMD_FINAL;
- hdr->itt = be32_to_cpu(hdr->itt);
- hdr->ttt = be32_to_cpu(hdr->ttt);
- hdr->exp_statsn = be32_to_cpu(hdr->exp_statsn);
- hdr->begrun = be32_to_cpu(hdr->begrun);
- hdr->runlength = be32_to_cpu(hdr->runlength);
pr_debug("Got ISCSI_INIT_SNACK, ITT: 0x%08x, ExpStatSN:"
" 0x%08x, Type: 0x%02x, BegRun: 0x%08x, RunLength: 0x%08x,"
switch (hdr->flags & ISCSI_FLAG_SNACK_TYPE_MASK) {
case 0:
return iscsit_handle_recovery_datain_or_r2t(conn, buf,
- hdr->itt, hdr->ttt, hdr->begrun, hdr->runlength);
+ hdr->itt,
+ be32_to_cpu(hdr->ttt),
+ be32_to_cpu(hdr->begrun),
+ be32_to_cpu(hdr->runlength));
case ISCSI_FLAG_SNACK_TYPE_STATUS:
- return iscsit_handle_status_snack(conn, hdr->itt, hdr->ttt,
- hdr->begrun, hdr->runlength);
+ return iscsit_handle_status_snack(conn, hdr->itt,
+ be32_to_cpu(hdr->ttt),
+ be32_to_cpu(hdr->begrun), be32_to_cpu(hdr->runlength));
case ISCSI_FLAG_SNACK_TYPE_DATA_ACK:
- return iscsit_handle_data_ack(conn, hdr->ttt, hdr->begrun,
- hdr->runlength);
+ return iscsit_handle_data_ack(conn, be32_to_cpu(hdr->ttt),
+ be32_to_cpu(hdr->begrun),
+ be32_to_cpu(hdr->runlength));
case ISCSI_FLAG_SNACK_TYPE_RDATA:
/* FIXME: Support R-Data SNACK */
pr_err("R-Data SNACK Not Supported.\n");
hdr = (struct iscsi_async *) cmd->pdu;
hdr->opcode = ISCSI_OP_ASYNC_EVENT;
hdr->flags = ISCSI_FLAG_CMD_FINAL;
- cmd->init_task_tag = 0xFFFFFFFF;
+ cmd->init_task_tag = RESERVED_ITT;
cmd->targ_xfer_tag = 0xFFFFFFFF;
put_unaligned_be64(0xFFFFFFFFFFFFFFFFULL, &hdr->rsvd4[0]);
cmd->stat_sn = conn->stat_sn++;
else
put_unaligned_le64(0xFFFFFFFFFFFFFFFFULL, &hdr->lun);
- hdr->itt = cpu_to_be32(cmd->init_task_tag);
- hdr->ttt = (hdr->flags & ISCSI_FLAG_DATA_ACK) ?
- cpu_to_be32(cmd->targ_xfer_tag) :
- 0xFFFFFFFF;
- hdr->statsn = (set_statsn) ? cpu_to_be32(cmd->stat_sn) :
- 0xFFFFFFFF;
+ hdr->itt = cmd->init_task_tag;
+
+ if (hdr->flags & ISCSI_FLAG_DATA_ACK)
+ hdr->ttt = cpu_to_be32(cmd->targ_xfer_tag);
+ else
+ hdr->ttt = cpu_to_be32(0xFFFFFFFF);
+ if (set_statsn)
+ hdr->statsn = cpu_to_be32(cmd->stat_sn);
+ else
+ hdr->statsn = cpu_to_be32(0xFFFFFFFF);
+
hdr->exp_cmdsn = cpu_to_be32(conn->sess->exp_cmd_sn);
hdr->max_cmdsn = cpu_to_be32(conn->sess->max_cmd_sn);
hdr->datasn = cpu_to_be32(datain.data_sn);
hdr->opcode = ISCSI_OP_LOGOUT_RSP;
hdr->flags |= ISCSI_FLAG_CMD_FINAL;
hdr->response = cmd->logout_response;
- hdr->itt = cpu_to_be32(cmd->init_task_tag);
+ hdr->itt = cmd->init_task_tag;
cmd->stat_sn = conn->stat_sn++;
hdr->statsn = cpu_to_be32(cmd->stat_sn);
memset(hdr, 0, ISCSI_HDR_LEN);
hdr->opcode = ISCSI_OP_NOOP_IN;
hdr->flags |= ISCSI_FLAG_CMD_FINAL;
- hdr->itt = cpu_to_be32(cmd->init_task_tag);
+ hdr->itt = cmd->init_task_tag;
hdr->ttt = cpu_to_be32(cmd->targ_xfer_tag);
cmd->stat_sn = conn->stat_sn;
hdr->statsn = cpu_to_be32(cmd->stat_sn);
hdr->flags |= ISCSI_FLAG_CMD_FINAL;
hton24(hdr->dlength, cmd->buf_ptr_size);
put_unaligned_le64(0xFFFFFFFFFFFFFFFFULL, &hdr->lun);
- hdr->itt = cpu_to_be32(cmd->init_task_tag);
+ hdr->itt = cmd->init_task_tag;
hdr->ttt = cpu_to_be32(cmd->targ_xfer_tag);
cmd->stat_sn = conn->stat_sn++;
hdr->statsn = cpu_to_be32(cmd->stat_sn);
hdr->flags |= ISCSI_FLAG_CMD_FINAL;
int_to_scsilun(cmd->se_cmd.orig_fe_lun,
(struct scsi_lun *)&hdr->lun);
- hdr->itt = cpu_to_be32(cmd->init_task_tag);
+ hdr->itt = cmd->init_task_tag;
spin_lock_bh(&conn->sess->ttt_lock);
r2t->targ_xfer_tag = conn->sess->targ_xfer_tag++;
if (r2t->targ_xfer_tag == 0xFFFFFFFF)
}
hdr->response = cmd->iscsi_response;
hdr->cmd_status = cmd->se_cmd.scsi_status;
- hdr->itt = cpu_to_be32(cmd->init_task_tag);
+ hdr->itt = cmd->init_task_tag;
hdr->statsn = cpu_to_be32(cmd->stat_sn);
iscsit_increment_maxcmdsn(cmd, conn->sess);
if (cmd->se_cmd.sense_buffer &&
((cmd->se_cmd.se_cmd_flags & SCF_TRANSPORT_TASK_SENSE) ||
(cmd->se_cmd.se_cmd_flags & SCF_EMULATED_TASK_SENSE))) {
+ put_unaligned_be16(cmd->se_cmd.scsi_sense_length, cmd->sense_buffer);
+ cmd->se_cmd.scsi_sense_length += sizeof (__be16);
+
padding = -(cmd->se_cmd.scsi_sense_length) & 3;
- hton24(hdr->dlength, cmd->se_cmd.scsi_sense_length);
- iov[iov_count].iov_base = cmd->se_cmd.sense_buffer;
+ hton24(hdr->dlength, (u32)cmd->se_cmd.scsi_sense_length);
+ iov[iov_count].iov_base = cmd->sense_buffer;
iov[iov_count++].iov_len =
(cmd->se_cmd.scsi_sense_length + padding);
tx_size += cmd->se_cmd.scsi_sense_length;
if (padding) {
- memset(cmd->se_cmd.sense_buffer +
+ memset(cmd->sense_buffer +
cmd->se_cmd.scsi_sense_length, 0, padding);
tx_size += padding;
pr_debug("Adding %u bytes of padding to"
if (conn->conn_ops->DataDigest) {
iscsit_do_crypto_hash_buf(&conn->conn_tx_hash,
- cmd->se_cmd.sense_buffer,
+ cmd->sense_buffer,
(cmd->se_cmd.scsi_sense_length + padding),
0, NULL, (u8 *)&cmd->data_crc);
hdr->opcode = ISCSI_OP_SCSI_TMFUNC_RSP;
hdr->flags = ISCSI_FLAG_CMD_FINAL;
hdr->response = iscsit_convert_tcm_tmr_rsp(se_tmr);
- hdr->itt = cpu_to_be32(cmd->init_task_tag);
+ hdr->itt = cmd->init_task_tag;
cmd->stat_sn = conn->stat_sn++;
hdr->statsn = cpu_to_be32(cmd->stat_sn);
struct sockaddr_in * sock_in =
(struct sockaddr_in *)&np->np_sockaddr;
- if (sock_in->sin_addr.s_addr == INADDR_ANY)
+ if (sock_in->sin_addr.s_addr == htonl(INADDR_ANY))
ret = true;
}
len += 1;
if ((len + payload_len) > buffer_len) {
- spin_unlock(&tiqn->tiqn_tpg_lock);
end_of_buf = 1;
goto eob;
}
hdr->opcode = ISCSI_OP_TEXT_RSP;
hdr->flags |= ISCSI_FLAG_CMD_FINAL;
hton24(hdr->dlength, text_length);
- hdr->itt = cpu_to_be32(cmd->init_task_tag);
+ hdr->itt = cmd->init_task_tag;
hdr->ttt = cpu_to_be32(cmd->targ_xfer_tag);
cmd->stat_sn = conn->stat_sn++;
hdr->statsn = cpu_to_be32(cmd->stat_sn);
hdr->opcode = ISCSI_OP_REJECT;
hdr->flags |= ISCSI_FLAG_CMD_FINAL;
hton24(hdr->dlength, ISCSI_HDR_LEN);
+ hdr->ffffffff = cpu_to_be32(0xffffffff);
cmd->stat_sn = conn->stat_sn++;
hdr->statsn = cpu_to_be32(cmd->stat_sn);
hdr->exp_cmdsn = cpu_to_be32(conn->sess->exp_cmd_sn);
extern struct kmem_cache *lio_qr_cache;
extern struct kmem_cache *lio_r2t_cache;
+extern struct idr sess_idr;
+extern struct mutex auth_id_lock;
+extern spinlock_t sess_idr_lock;
+
+
#endif /*** ISCSI_TARGET_H ***/
#define MAX_PORTAL_LEN 256
-struct se_tpg_np *lio_target_call_addnptotpg(
+static struct se_tpg_np *lio_target_call_addnptotpg(
struct se_portal_group *se_tpg,
struct config_group *group,
const char *name)
DEF_TPG_PARAM(MaxRecvDataSegmentLength);
TPG_PARAM_ATTR(MaxRecvDataSegmentLength, S_IRUGO | S_IWUSR);
+DEF_TPG_PARAM(MaxXmitDataSegmentLength);
+TPG_PARAM_ATTR(MaxXmitDataSegmentLength, S_IRUGO | S_IWUSR);
+
DEF_TPG_PARAM(MaxBurstLength);
TPG_PARAM_ATTR(MaxBurstLength, S_IRUGO | S_IWUSR);
&iscsi_tpg_param_InitialR2T.attr,
&iscsi_tpg_param_ImmediateData.attr,
&iscsi_tpg_param_MaxRecvDataSegmentLength.attr,
+ &iscsi_tpg_param_MaxXmitDataSegmentLength.attr,
&iscsi_tpg_param_MaxBurstLength.attr,
&iscsi_tpg_param_FirstBurstLength.attr,
&iscsi_tpg_param_DefaultTime2Wait.attr,
/* Start items for lio_target_tiqn_cit */
-struct se_portal_group *lio_target_tiqn_addtpg(
+static struct se_portal_group *lio_target_tiqn_addtpg(
struct se_wwn *wwn,
struct config_group *group,
const char *name)
return NULL;
}
-void lio_target_tiqn_deltpg(struct se_portal_group *se_tpg)
+static void lio_target_tiqn_deltpg(struct se_portal_group *se_tpg)
{
struct iscsi_portal_group *tpg;
struct iscsi_tiqn *tiqn;
NULL,
};
-struct se_wwn *lio_target_call_coreaddtiqn(
+static struct se_wwn *lio_target_call_coreaddtiqn(
struct target_fabric_configfs *tf,
struct config_group *group,
const char *name)
return &tiqn->tiqn_wwn;
}
-void lio_target_call_coredeltiqn(
+static void lio_target_call_coredeltiqn(
struct se_wwn *wwn)
{
struct iscsi_tiqn *tiqn = container_of(wwn, struct iscsi_tiqn, tiqn_wwn);
{
struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
- return cmd->init_task_tag;
+ /* only used for printks or comparism with ->ref_task_tag */
+ return (__force u32)cmd->init_task_tag;
}
static int iscsi_get_cmd_state(struct se_cmd *se_cmd)
return 0;
}
-static u16 lio_set_fabric_sense_len(struct se_cmd *se_cmd, u32 sense_length)
-{
- unsigned char *buffer = se_cmd->sense_buffer;
- /*
- * From RFC-3720 10.4.7. Data Segment - Sense and Response Data Segment
- * 16-bit SenseLength.
- */
- buffer[0] = ((sense_length >> 8) & 0xff);
- buffer[1] = (sense_length & 0xff);
- /*
- * Return two byte offset into allocated sense_buffer.
- */
- return 2;
-}
-
-static u16 lio_get_fabric_sense_len(void)
-{
- /*
- * Return two byte offset into allocated sense_buffer.
- */
- return 2;
-}
-
static int lio_queue_tm_rsp(struct se_cmd *se_cmd)
{
struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
fabric->tf_ops.queue_data_in = &lio_queue_data_in;
fabric->tf_ops.queue_status = &lio_queue_status;
fabric->tf_ops.queue_tm_rsp = &lio_queue_tm_rsp;
- fabric->tf_ops.set_fabric_sense_len = &lio_set_fabric_sense_len;
- fabric->tf_ops.get_fabric_sense_len = &lio_get_fabric_sense_len;
/*
* Setup function pointers for generic logic in target_core_fabric_configfs.c
*/
#define NA_DATAOUT_TIMEOUT_RETRIES 5
#define NA_DATAOUT_TIMEOUT_RETRIES_MAX 15
#define NA_DATAOUT_TIMEOUT_RETRIES_MIN 1
-#define NA_NOPIN_TIMEOUT 5
+#define NA_NOPIN_TIMEOUT 15
#define NA_NOPIN_TIMEOUT_MAX 60
#define NA_NOPIN_TIMEOUT_MIN 3
-#define NA_NOPIN_RESPONSE_TIMEOUT 5
+#define NA_NOPIN_RESPONSE_TIMEOUT 30
#define NA_NOPIN_RESPONSE_TIMEOUT_MAX 60
#define NA_NOPIN_RESPONSE_TIMEOUT_MIN 3
#define NA_RANDOM_DATAIN_PDU_OFFSETS 0
u8 HeaderDigest; /* [0,1] == [None,CRC32C] */
u8 DataDigest; /* [0,1] == [None,CRC32C] */
u32 MaxRecvDataSegmentLength; /* [512..2**24-1] */
+ u32 MaxXmitDataSegmentLength; /* [512..2**24-1] */
u8 OFMarker; /* [0,1] == [No,Yes] */
u8 IFMarker; /* [0,1] == [No,Yes] */
u32 OFMarkInt; /* [1..65535] */
/* Command flags */
enum cmd_flags_table cmd_flags;
/* Initiator Task Tag assigned from Initiator */
- u32 init_task_tag;
+ itt_t init_task_tag;
/* Target Transfer Tag assigned from Target */
u32 targ_xfer_tag;
/* CmdSN assigned from Initiator */
struct iscsi_tmr_req {
bool task_reassign:1;
- u32 ref_cmd_sn;
u32 exp_data_sn;
struct iscsi_cmd *ref_cmd;
struct iscsi_conn_recovery *conn_recovery;
u32 auth_id;
u32 conn_flags;
/* Used for iscsi_tx_login_rsp() */
- u32 login_itt;
+ itt_t login_itt;
u32 exp_statsn;
/* Per connection status sequence number */
u32 stat_sn;
u16 cid;
u32 cmd_count;
u32 maxrecvdatasegmentlength;
+ u32 maxxmitdatasegmentlength;
int ready_for_reallegiance;
struct list_head conn_recovery_cmd_list;
spinlock_t conn_recovery_cmd_lock;
/* state session is currently in */
u32 session_state;
/* session wide counter: initiator assigned task tag */
- u32 init_task_tag;
+ itt_t init_task_tag;
/* session wide counter: target assigned task tag */
u32 targ_xfer_tag;
u32 cmdsn_window;
u8 version_max;
char isid[6];
u32 cmd_sn;
- u32 init_task_tag;
+ itt_t init_task_tag;
u32 initial_exp_statsn;
u32 rsp_length;
u16 cid;
if (cmd->unsolicited_data) {
cmd->seq_start_offset = cmd->write_data_done;
cmd->seq_end_offset = (cmd->write_data_done +
- (cmd->se_cmd.data_length >
- conn->sess->sess_ops->FirstBurstLength) ?
- conn->sess->sess_ops->FirstBurstLength : cmd->se_cmd.data_length);
+ ((cmd->se_cmd.data_length >
+ conn->sess->sess_ops->FirstBurstLength) ?
+ conn->sess->sess_ops->FirstBurstLength : cmd->se_cmd.data_length));
return;
}
*/
if (conn->sess->sess_ops->DataSequenceInOrder) {
if ((cmd->cmd_flags & ICF_WITHIN_COMMAND_RECOVERY) &&
- (cmd->write_data_done != hdr->offset))
+ cmd->write_data_done != be32_to_cpu(hdr->offset))
goto dump;
cmd->cmd_flags &= ~ICF_WITHIN_COMMAND_RECOVERY;
} else {
struct iscsi_seq *seq;
- seq = iscsit_get_seq_holder(cmd, hdr->offset, payload_length);
+ seq = iscsit_get_seq_holder(cmd, be32_to_cpu(hdr->offset),
+ payload_length);
if (!seq)
return DATAOUT_CANNOT_RECOVER;
/*
cmd->seq_ptr = seq;
if (conn->sess->sess_ops->DataPDUInOrder) {
- if ((seq->status ==
- DATAOUT_SEQUENCE_WITHIN_COMMAND_RECOVERY) &&
- ((seq->offset != hdr->offset) ||
- (seq->data_sn != hdr->datasn)))
+ if (seq->status ==
+ DATAOUT_SEQUENCE_WITHIN_COMMAND_RECOVERY &&
+ (seq->offset != be32_to_cpu(hdr->offset) ||
+ seq->data_sn != be32_to_cpu(hdr->datasn)))
goto dump;
} else {
- if ((seq->status ==
- DATAOUT_SEQUENCE_WITHIN_COMMAND_RECOVERY) &&
- (seq->data_sn != hdr->datasn))
+ if (seq->status ==
+ DATAOUT_SEQUENCE_WITHIN_COMMAND_RECOVERY &&
+ seq->data_sn != be32_to_cpu(hdr->datasn))
goto dump;
}
u32 payload_length = ntoh24(hdr->dlength);
- if ((hdr->offset < cmd->seq_start_offset) ||
- ((hdr->offset + payload_length) > cmd->seq_end_offset)) {
+ if ((be32_to_cpu(hdr->offset) < cmd->seq_start_offset) ||
+ ((be32_to_cpu(hdr->offset) + payload_length) > cmd->seq_end_offset)) {
pr_err("Command ITT: 0x%08x with Offset: %u,"
" Length: %u outside of Unsolicited Sequence %u:%u while"
" DataSequenceInOrder=Yes.\n", cmd->init_task_tag,
- hdr->offset, payload_length, cmd->seq_start_offset,
+ be32_to_cpu(hdr->offset), payload_length, cmd->seq_start_offset,
cmd->seq_end_offset);
return DATAOUT_CANNOT_RECOVER;
}
* fullfilling an Recovery R2T, it's best to just dump the
* payload here, instead of erroring out.
*/
- if ((hdr->offset < cmd->seq_start_offset) ||
- ((hdr->offset + payload_length) > cmd->seq_end_offset)) {
+ if ((be32_to_cpu(hdr->offset) < cmd->seq_start_offset) ||
+ ((be32_to_cpu(hdr->offset) + payload_length) > cmd->seq_end_offset)) {
pr_err("Command ITT: 0x%08x with Offset: %u,"
" Length: %u outside of Sequence %u:%u while"
" DataSequenceInOrder=Yes.\n", cmd->init_task_tag,
- hdr->offset, payload_length, cmd->seq_start_offset,
+ be32_to_cpu(hdr->offset), payload_length, cmd->seq_start_offset,
cmd->seq_end_offset);
if (iscsit_dump_data_payload(conn, payload_length, 1) < 0)
next_burst_len = (cmd->next_burst_len + payload_length);
} else {
- seq = iscsit_get_seq_holder(cmd, hdr->offset, payload_length);
+ seq = iscsit_get_seq_holder(cmd, be32_to_cpu(hdr->offset),
+ payload_length);
if (!seq)
return DATAOUT_CANNOT_RECOVER;
/*
data_sn = seq->data_sn;
}
- if (hdr->datasn > data_sn) {
+ if (be32_to_cpu(hdr->datasn) > data_sn) {
pr_err("Command ITT: 0x%08x, received DataSN: 0x%08x"
" higher than expected 0x%08x.\n", cmd->init_task_tag,
- hdr->datasn, data_sn);
+ be32_to_cpu(hdr->datasn), data_sn);
recovery = 1;
goto recover;
- } else if (hdr->datasn < data_sn) {
+ } else if (be32_to_cpu(hdr->datasn) < data_sn) {
pr_err("Command ITT: 0x%08x, received DataSN: 0x%08x"
" lower than expected 0x%08x, discarding payload.\n",
- cmd->init_task_tag, hdr->datasn, data_sn);
+ cmd->init_task_tag, be32_to_cpu(hdr->datasn), data_sn);
dump = 1;
goto dump;
}
* error has occured and fail the connection.
*/
if (conn->sess->sess_ops->DataSequenceInOrder) {
- if (hdr->offset != cmd->write_data_done) {
+ if (be32_to_cpu(hdr->offset) != cmd->write_data_done) {
pr_err("Command ITT: 0x%08x, received offset"
" %u different than expected %u.\n", cmd->init_task_tag,
- hdr->offset, cmd->write_data_done);
+ be32_to_cpu(hdr->offset), cmd->write_data_done);
recovery = 1;
goto recover;
}
} else {
struct iscsi_seq *seq = cmd->seq_ptr;
- if (hdr->offset > seq->offset) {
+ if (be32_to_cpu(hdr->offset) > seq->offset) {
pr_err("Command ITT: 0x%08x, received offset"
" %u greater than expected %u.\n", cmd->init_task_tag,
- hdr->offset, seq->offset);
+ be32_to_cpu(hdr->offset), seq->offset);
recovery = 1;
goto recover;
- } else if (hdr->offset < seq->offset) {
+ } else if (be32_to_cpu(hdr->offset) < seq->offset) {
pr_err("Command ITT: 0x%08x, received offset"
" %u less than expected %u, discarding payload.\n",
- cmd->init_task_tag, hdr->offset, seq->offset);
+ cmd->init_task_tag, be32_to_cpu(hdr->offset),
+ seq->offset);
dump = 1;
goto dump;
}
return DATAOUT_CANNOT_RECOVER;
return (recovery) ? iscsit_recover_dataout_sequence(cmd,
- hdr->offset, payload_length) :
+ be32_to_cpu(hdr->offset), payload_length) :
(dump) ? DATAOUT_WITHIN_COMMAND_RECOVERY : DATAOUT_NORMAL;
}
struct iscsi_data *hdr = (struct iscsi_data *) buf;
u32 payload_length = ntoh24(hdr->dlength);
- pdu = iscsit_get_pdu_holder(cmd, hdr->offset, payload_length);
+ pdu = iscsit_get_pdu_holder(cmd, be32_to_cpu(hdr->offset),
+ payload_length);
if (!pdu)
return DATAOUT_CANNOT_RECOVER;
case ISCSI_PDU_RECEIVED_OK:
pr_err("Command ITT: 0x%08x received already gotten"
" Offset: %u, Length: %u\n", cmd->init_task_tag,
- hdr->offset, payload_length);
+ be32_to_cpu(hdr->offset), payload_length);
return iscsit_dump_data_payload(cmd->conn, payload_length, 1);
default:
return DATAOUT_CANNOT_RECOVER;
if (cmd->unsolicited_data) {
if ((cmd->first_burst_len + payload_length) ==
conn->sess->sess_ops->FirstBurstLength) {
- if (iscsit_dataout_update_r2t(cmd, hdr->offset,
+ if (iscsit_dataout_update_r2t(cmd, be32_to_cpu(hdr->offset),
payload_length) < 0)
return DATAOUT_CANNOT_RECOVER;
send_r2t = 1;
if (!conn->sess->sess_ops->DataPDUInOrder) {
ret = iscsit_dataout_update_datapduinorder_no(cmd,
- hdr->datasn, (hdr->flags & ISCSI_FLAG_CMD_FINAL));
+ be32_to_cpu(hdr->datasn),
+ (hdr->flags & ISCSI_FLAG_CMD_FINAL));
if (ret == DATAOUT_CANNOT_RECOVER)
return ret;
}
if (conn->sess->sess_ops->DataSequenceInOrder) {
if ((cmd->next_burst_len + payload_length) ==
conn->sess->sess_ops->MaxBurstLength) {
- if (iscsit_dataout_update_r2t(cmd, hdr->offset,
+ if (iscsit_dataout_update_r2t(cmd,
+ be32_to_cpu(hdr->offset),
payload_length) < 0)
return DATAOUT_CANNOT_RECOVER;
send_r2t = 1;
if (!conn->sess->sess_ops->DataPDUInOrder) {
ret = iscsit_dataout_update_datapduinorder_no(
- cmd, hdr->datasn,
+ cmd, be32_to_cpu(hdr->datasn),
(hdr->flags & ISCSI_FLAG_CMD_FINAL));
if (ret == DATAOUT_CANNOT_RECOVER)
return ret;
if ((seq->next_burst_len + payload_length) ==
seq->xfer_len) {
- if (iscsit_dataout_update_r2t(cmd, hdr->offset,
+ if (iscsit_dataout_update_r2t(cmd,
+ be32_to_cpu(hdr->offset),
payload_length) < 0)
return DATAOUT_CANNOT_RECOVER;
send_r2t = 1;
if (!conn->sess->sess_ops->DataPDUInOrder) {
ret = iscsit_dataout_update_datapduinorder_no(
- cmd, hdr->datasn,
+ cmd, be32_to_cpu(hdr->datasn),
(hdr->flags & ISCSI_FLAG_CMD_FINAL));
if (ret == DATAOUT_CANNOT_RECOVER)
return ret;
}
recover:
- return iscsit_recover_dataout_sequence(cmd, hdr->offset, payload_length);
+ return iscsit_recover_dataout_sequence(cmd, be32_to_cpu(hdr->offset),
+ payload_length);
}
/*
* Called from iscsit_handle_data_out() before DataOUT Payload is received
* and CRC computed.
*/
-extern int iscsit_check_pre_dataout(
+int iscsit_check_pre_dataout(
struct iscsi_cmd *cmd,
unsigned char *buf)
{
target_put_session(sess->se_sess);
}
-extern void iscsit_start_time2retain_handler(struct iscsi_session *sess)
+void iscsit_start_time2retain_handler(struct iscsi_session *sess)
{
int tpg_active;
/*
/*
* Called with spin_lock_bh(&struct se_portal_group->session_lock) held
*/
-extern int iscsit_stop_time2retain_timer(struct iscsi_session *sess)
+int iscsit_stop_time2retain_timer(struct iscsi_session *sess)
{
struct iscsi_portal_group *tpg = ISCSI_TPG_S(sess);
struct se_portal_group *se_tpg = &tpg->tpg_se_tpg;
}
}
-extern void iscsit_take_action_for_connection_exit(struct iscsi_conn *conn)
+void iscsit_take_action_for_connection_exit(struct iscsi_conn *conn)
{
spin_lock_bh(&conn->state_lock);
if (atomic_read(&conn->connection_exit)) {
int iscsit_handle_recovery_datain_or_r2t(
struct iscsi_conn *conn,
unsigned char *buf,
- u32 init_task_tag,
+ itt_t init_task_tag,
u32 targ_xfer_tag,
u32 begrun,
u32 runlength)
/* #warning FIXME: Status SNACK needs to be dependent on OPCODE!!! */
int iscsit_handle_status_snack(
struct iscsi_conn *conn,
- u32 init_task_tag,
+ itt_t init_task_tag,
u32 targ_xfer_tag,
u32 begrun,
u32 runlength)
extern int iscsit_create_recovery_datain_values_datasequenceinorder_no(
struct iscsi_cmd *, struct iscsi_datain_req *);
extern int iscsit_handle_recovery_datain_or_r2t(struct iscsi_conn *, unsigned char *,
- u32, u32, u32, u32);
-extern int iscsit_handle_status_snack(struct iscsi_conn *, u32, u32,
+ itt_t, u32, u32, u32);
+extern int iscsit_handle_status_snack(struct iscsi_conn *, itt_t, u32,
u32, u32);
extern int iscsit_handle_data_ack(struct iscsi_conn *, u32, u32, u32);
extern int iscsit_dataout_datapduinorder_no_fbit(struct iscsi_cmd *, struct iscsi_pdu *);
*/
void iscsit_create_conn_recovery_datain_values(
struct iscsi_cmd *cmd,
- u32 exp_data_sn)
+ __be32 exp_data_sn)
{
u32 data_sn = 0;
struct iscsi_conn *conn = cmd->conn;
cmd->next_burst_len = 0;
cmd->read_data_done = 0;
- while (exp_data_sn > data_sn) {
+ while (be32_to_cpu(exp_data_sn) > data_sn) {
if ((cmd->next_burst_len +
conn->conn_ops->MaxRecvDataSegmentLength) <
conn->sess->sess_ops->MaxBurstLength) {
return 0;
}
-int iscsit_remove_inactive_connection_recovery_entry(
+static void iscsit_remove_inactive_connection_recovery_entry(
struct iscsi_conn_recovery *cr,
struct iscsi_session *sess)
{
spin_lock(&sess->cr_i_lock);
list_del(&cr->cr_list);
spin_unlock(&sess->cr_i_lock);
-
- return 0;
}
/*
cr->cid = conn->cid;
cr->cmd_count = cmd_count;
cr->maxrecvdatasegmentlength = conn->conn_ops->MaxRecvDataSegmentLength;
+ cr->maxxmitdatasegmentlength = conn->conn_ops->MaxXmitDataSegmentLength;
cr->sess = conn->sess;
iscsit_attach_inactive_connection_recovery_entry(conn->sess, cr);
#ifndef ISCSI_TARGET_ERL2_H
#define ISCSI_TARGET_ERL2_H
-extern void iscsit_create_conn_recovery_datain_values(struct iscsi_cmd *, u32);
+extern void iscsit_create_conn_recovery_datain_values(struct iscsi_cmd *, __be32);
extern void iscsit_create_conn_recovery_dataout_values(struct iscsi_cmd *);
extern struct iscsi_conn_recovery *iscsit_get_inactive_connection_recovery_entry(
struct iscsi_session *, u16);
#include "iscsi_target.h"
#include "iscsi_target_parameters.h"
-extern struct idr sess_idr;
-extern struct mutex auth_id_lock;
-extern spinlock_t sess_idr_lock;
-
static int iscsi_login_init_conn(struct iscsi_conn *conn)
{
INIT_LIST_HEAD(&conn->conn_list);
static void iscsi_login_set_conn_values(
struct iscsi_session *sess,
struct iscsi_conn *conn,
- u16 cid)
+ __be16 cid)
{
conn->sess = sess;
- conn->cid = cid;
+ conn->cid = be16_to_cpu(cid);
/*
* Generate a random Status sequence number (statsn) for the new
* iSCSI connection.
iscsi_login_set_conn_values(sess, conn, pdu->cid);
sess->init_task_tag = pdu->itt;
memcpy(&sess->isid, pdu->isid, 6);
- sess->exp_cmd_sn = pdu->cmdsn;
+ sess->exp_cmd_sn = be32_to_cpu(pdu->cmdsn);
INIT_LIST_HEAD(&sess->sess_conn_list);
INIT_LIST_HEAD(&sess->sess_ooo_cmdsn_list);
INIT_LIST_HEAD(&sess->cr_active_list);
* The FFP CmdSN window values will be allocated from the TPG's
* Initiator Node's ACL once the login has been successfully completed.
*/
- sess->max_cmd_sn = pdu->cmdsn;
+ sess->max_cmd_sn = be32_to_cpu(pdu->cmdsn);
sess->sess_ops = kzalloc(sizeof(struct iscsi_sess_ops), GFP_KERNEL);
if (!sess->sess_ops) {
(sess_p->time2retain_timer_flags & ISCSI_TF_EXPIRED))
continue;
if (!memcmp(sess_p->isid, pdu->isid, 6) &&
- (sess_p->tsih == pdu->tsih)) {
+ (sess_p->tsih == be16_to_cpu(pdu->tsih))) {
iscsit_inc_session_usage_count(sess_p);
iscsit_stop_time2retain_timer(sess_p);
sess = sess_p;
}
pdu = (struct iscsi_login_req *) buffer;
- pdu->cid = be16_to_cpu(pdu->cid);
- pdu->tsih = be16_to_cpu(pdu->tsih);
- pdu->itt = be32_to_cpu(pdu->itt);
- pdu->cmdsn = be32_to_cpu(pdu->cmdsn);
- pdu->exp_statsn = be32_to_cpu(pdu->exp_statsn);
+
/*
* Used by iscsit_tx_login_rsp() for Login Resonses PDUs
* when Status-Class != 0.
buf[i] = ';';
}
-int strlen_semi(char *buf)
+static int strlen_semi(char *buf)
{
int i = 0;
hton24(login_rsp->dlength, login->rsp_length);
memcpy(login_rsp->isid, login->isid, 6);
login_rsp->tsih = cpu_to_be16(login->tsih);
- login_rsp->itt = cpu_to_be32(login->init_task_tag);
+ login_rsp->itt = login->init_task_tag;
login_rsp->statsn = cpu_to_be32(conn->stat_sn++);
login_rsp->exp_cmdsn = cpu_to_be32(conn->sess->exp_cmd_sn);
login_rsp->max_cmdsn = cpu_to_be32(conn->sess->max_cmd_sn);
pr_debug("Sending Login Response, Flags: 0x%02x, ITT: 0x%08x,"
" ExpCmdSN; 0x%08x, MaxCmdSN: 0x%08x, StatSN: 0x%08x, Length:"
- " %u\n", login_rsp->flags, ntohl(login_rsp->itt),
+ " %u\n", login_rsp->flags, (__force u32)login_rsp->itt,
ntohl(login_rsp->exp_cmdsn), ntohl(login_rsp->max_cmdsn),
ntohl(login_rsp->statsn), login->rsp_length);
return -1;
login->rsp_length = 0;
- login_rsp->tsih = be16_to_cpu(login_rsp->tsih);
- login_rsp->itt = be32_to_cpu(login_rsp->itt);
- login_rsp->statsn = be32_to_cpu(login_rsp->statsn);
mutex_lock(&sess->cmdsn_mutex);
- login_rsp->exp_cmdsn = be32_to_cpu(sess->exp_cmd_sn);
- login_rsp->max_cmdsn = be32_to_cpu(sess->max_cmd_sn);
+ login_rsp->exp_cmdsn = cpu_to_be32(sess->exp_cmd_sn);
+ login_rsp->max_cmdsn = cpu_to_be32(sess->max_cmd_sn);
mutex_unlock(&sess->cmdsn_mutex);
return 0;
login_req = (struct iscsi_login_req *) login->req;
payload_length = ntoh24(login_req->dlength);
- login_req->tsih = be16_to_cpu(login_req->tsih);
- login_req->itt = be32_to_cpu(login_req->itt);
- login_req->cid = be16_to_cpu(login_req->cid);
- login_req->cmdsn = be32_to_cpu(login_req->cmdsn);
- login_req->exp_statsn = be32_to_cpu(login_req->exp_statsn);
pr_debug("Got Login Command, Flags 0x%02x, ITT: 0x%08x,"
" CmdSN: 0x%08x, ExpStatSN: 0x%08x, CID: %hu, Length: %u\n",
SENDER_INITIATOR|SENDER_RECEIVER,
login->req_buf,
payload_length,
- conn->param_list);
+ conn);
if (ret < 0)
return -1;
SENDER_INITIATOR|SENDER_RECEIVER,
login->req_buf,
payload_length,
- conn->param_list);
+ conn);
if (ret < 0)
return -1;
login->version_min = login_req->min_version;
login->version_max = login_req->max_version;
memcpy(login->isid, login_req->isid, 6);
- login->cmd_sn = login_req->cmdsn;
+ login->cmd_sn = be32_to_cpu(login_req->cmdsn);
login->init_task_tag = login_req->itt;
- login->initial_exp_statsn = login_req->exp_statsn;
- login->cid = login_req->cid;
- login->tsih = login_req->tsih;
+ login->initial_exp_statsn = be32_to_cpu(login_req->exp_statsn);
+ login->cid = be16_to_cpu(login_req->cid);
+ login->tsih = be16_to_cpu(login_req->tsih);
if (iscsi_target_get_initial_payload(conn, login) < 0)
return -1;
* Locates Target Portal from NP -> Target IQN
*/
if (iscsi_target_locate_portal(np, conn, login) < 0) {
- pr_err("iSCSI Login negotiation failed.\n");
goto out;
}
if (!param)
goto out;
+ param = iscsi_set_default_param(pl, MAXXMITDATASEGMENTLENGTH,
+ INITIAL_MAXXMITDATASEGMENTLENGTH,
+ PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH,
+ TYPERANGE_512_TO_16777215, USE_ALL);
+ if (!param)
+ goto out;
+
param = iscsi_set_default_param(pl, MAXRECVDATASEGMENTLENGTH,
INITIAL_MAXRECVDATASEGMENTLENGTH,
PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH,
SET_PSTATE_NEGOTIATE(param);
} else if (!strcmp(param->name, MAXRECVDATASEGMENTLENGTH)) {
SET_PSTATE_NEGOTIATE(param);
+ } else if (!strcmp(param->name, MAXXMITDATASEGMENTLENGTH)) {
+ continue;
} else if (!strcmp(param->name, MAXBURSTLENGTH)) {
SET_PSTATE_NEGOTIATE(param);
} else if (!strcmp(param->name, FIRSTBURSTLENGTH)) {
return proposer_values;
}
-static int iscsi_check_acceptor_state(struct iscsi_param *param, char *value)
+static int iscsi_check_acceptor_state(struct iscsi_param *param, char *value,
+ struct iscsi_conn *conn)
{
u8 acceptor_boolean_value = 0, proposer_boolean_value = 0;
char *negoitated_value = NULL;
return -1;
}
- if (!strcmp(param->name, MAXRECVDATASEGMENTLENGTH))
- SET_PSTATE_REPLY_OPTIONAL(param);
+ if (!strcmp(param->name, MAXRECVDATASEGMENTLENGTH)) {
+ struct iscsi_param *param_mxdsl;
+ unsigned long long tmp;
+ int rc;
+
+ rc = strict_strtoull(param->value, 0, &tmp);
+ if (rc < 0)
+ return -1;
+
+ conn->conn_ops->MaxRecvDataSegmentLength = tmp;
+ pr_debug("Saving op->MaxRecvDataSegmentLength from"
+ " original initiator received value: %u\n",
+ conn->conn_ops->MaxRecvDataSegmentLength);
+
+ param_mxdsl = iscsi_find_param_from_key(
+ MAXXMITDATASEGMENTLENGTH,
+ conn->param_list);
+ if (!param_mxdsl)
+ return -1;
+
+ rc = iscsi_update_param_value(param,
+ param_mxdsl->value);
+ if (rc < 0)
+ return -1;
+
+ pr_debug("Updated %s to target MXDSL value: %s\n",
+ param->name, param->value);
+ }
+
} else if (IS_TYPE_NUMBER_RANGE(param)) {
negoitated_value = iscsi_get_value_from_number_range(
param, value);
u8 sender,
char *textbuf,
u32 length,
- struct iscsi_param_list *param_list)
+ struct iscsi_conn *conn)
{
+ struct iscsi_param_list *param_list = conn->param_list;
char *tmpbuf, *start = NULL, *end = NULL;
tmpbuf = kzalloc(length + 1, GFP_KERNEL);
}
SET_PSTATE_RESPONSE_GOT(param);
} else {
- if (iscsi_check_acceptor_state(param, value) < 0) {
+ if (iscsi_check_acceptor_state(param, value, conn) < 0) {
kfree(tmpbuf);
return -1;
}
pr_debug("---------------------------------------------------"
"---------------\n");
list_for_each_entry(param, ¶m_list->param_list, p_list) {
+ /*
+ * Special case to set MAXXMITDATASEGMENTLENGTH from the
+ * target requested MaxRecvDataSegmentLength, even though
+ * this key is not sent over the wire.
+ */
+ if (!strcmp(param->name, MAXXMITDATASEGMENTLENGTH)) {
+ ops->MaxXmitDataSegmentLength =
+ simple_strtoul(param->value, &tmpptr, 0);
+ pr_debug("MaxXmitDataSegmentLength: %s\n",
+ param->value);
+ }
+
if (!IS_PSTATE_ACCEPTOR(param) && !IS_PSTATE_PROPOSER(param))
continue;
if (!strcmp(param->name, AUTHMETHOD)) {
pr_debug("DataDigest: %s\n",
param->value);
} else if (!strcmp(param->name, MAXRECVDATASEGMENTLENGTH)) {
- ops->MaxRecvDataSegmentLength =
- simple_strtoul(param->value, &tmpptr, 0);
- pr_debug("MaxRecvDataSegmentLength: %s\n",
- param->value);
+ /*
+ * At this point iscsi_check_acceptor_state() will have
+ * set ops->MaxRecvDataSegmentLength from the original
+ * initiator provided value.
+ */
+ pr_debug("MaxRecvDataSegmentLength: %u\n",
+ ops->MaxRecvDataSegmentLength);
} else if (!strcmp(param->name, OFMARKER)) {
ops->OFMarker = !strcmp(param->value, YES);
pr_debug("OFMarker: %s\n",
extern struct iscsi_param *iscsi_find_param_from_key(char *, struct iscsi_param_list *);
extern int iscsi_extract_key_value(char *, char **, char **);
extern int iscsi_update_param_value(struct iscsi_param *, char *);
-extern int iscsi_decode_text_input(u8, u8, char *, u32, struct iscsi_param_list *);
+extern int iscsi_decode_text_input(u8, u8, char *, u32, struct iscsi_conn *);
extern int iscsi_encode_text_output(u8, u8, char *, u32 *,
struct iscsi_param_list *);
extern int iscsi_check_negotiated_keys(struct iscsi_param_list *);
#define INITIALR2T "InitialR2T"
#define IMMEDIATEDATA "ImmediateData"
#define MAXRECVDATASEGMENTLENGTH "MaxRecvDataSegmentLength"
+#define MAXXMITDATASEGMENTLENGTH "MaxXmitDataSegmentLength"
#define MAXBURSTLENGTH "MaxBurstLength"
#define FIRSTBURSTLENGTH "FirstBurstLength"
#define DEFAULTTIME2WAIT "DefaultTime2Wait"
#define INITIAL_INITIALR2T YES
#define INITIAL_IMMEDIATEDATA YES
#define INITIAL_MAXRECVDATASEGMENTLENGTH "8192"
+/*
+ * Match outgoing MXDSL default to incoming Open-iSCSI default
+ */
+#define INITIAL_MAXXMITDATASEGMENTLENGTH "262144"
#define INITIAL_MAXBURSTLENGTH "262144"
#define INITIAL_FIRSTBURSTLENGTH "65536"
#define INITIAL_DEFAULTTIME2WAIT "2"
int check_immediate = 0;
u32 burstlength = 0, offset = 0;
u32 unsolicited_data_length = 0;
+ u32 mdsl;
struct iscsi_conn *conn = cmd->conn;
+ if (cmd->se_cmd.data_direction == DMA_TO_DEVICE)
+ mdsl = cmd->conn->conn_ops->MaxXmitDataSegmentLength;
+ else
+ mdsl = cmd->conn->conn_ops->MaxRecvDataSegmentLength;
+
if ((bl->type == PDULIST_IMMEDIATE) ||
(bl->type == PDULIST_IMMEDIATE_AND_UNSOLICITED))
check_immediate = 1;
continue;
}
if (unsolicited_data_length > 0) {
- if ((offset + conn->conn_ops->MaxRecvDataSegmentLength)
- >= cmd->se_cmd.data_length) {
+ if ((offset + mdsl) >= cmd->se_cmd.data_length) {
unsolicited_data_length -=
(cmd->se_cmd.data_length - offset);
offset += (cmd->se_cmd.data_length - offset);
continue;
}
- if ((offset + conn->conn_ops->MaxRecvDataSegmentLength)
+ if ((offset + mdsl)
>= conn->sess->sess_ops->FirstBurstLength) {
unsolicited_data_length -=
(conn->sess->sess_ops->FirstBurstLength -
continue;
}
- offset += conn->conn_ops->MaxRecvDataSegmentLength;
- unsolicited_data_length -=
- conn->conn_ops->MaxRecvDataSegmentLength;
+ offset += mdsl;
+ unsolicited_data_length -= mdsl;
continue;
}
- if ((offset + conn->conn_ops->MaxRecvDataSegmentLength) >=
- cmd->se_cmd.data_length) {
+ if ((offset + mdsl) >= cmd->se_cmd.data_length) {
offset += (cmd->se_cmd.data_length - offset);
continue;
}
- if ((burstlength + conn->conn_ops->MaxRecvDataSegmentLength) >=
+ if ((burstlength + mdsl) >=
conn->sess->sess_ops->MaxBurstLength) {
offset += (conn->sess->sess_ops->MaxBurstLength -
burstlength);
continue;
}
- burstlength += conn->conn_ops->MaxRecvDataSegmentLength;
- offset += conn->conn_ops->MaxRecvDataSegmentLength;
+ burstlength += mdsl;
+ offset += mdsl;
}
}
struct iscsi_build_list *bl)
{
int check_immediate = 0, datapduinorder, datasequenceinorder;
- u32 burstlength = 0, offset = 0, i = 0;
+ u32 burstlength = 0, offset = 0, i = 0, mdsl;
u32 pdu_count = 0, seq_no = 0, unsolicited_data_length = 0;
struct iscsi_conn *conn = cmd->conn;
struct iscsi_pdu *pdu = cmd->pdu_list;
struct iscsi_seq *seq = cmd->seq_list;
+ if (cmd->se_cmd.data_direction == DMA_TO_DEVICE)
+ mdsl = cmd->conn->conn_ops->MaxXmitDataSegmentLength;
+ else
+ mdsl = cmd->conn->conn_ops->MaxRecvDataSegmentLength;
+
datapduinorder = conn->sess->sess_ops->DataPDUInOrder;
datasequenceinorder = conn->sess->sess_ops->DataSequenceInOrder;
continue;
}
if (unsolicited_data_length > 0) {
- if ((offset +
- conn->conn_ops->MaxRecvDataSegmentLength) >=
- cmd->se_cmd.data_length) {
+ if ((offset + mdsl) >= cmd->se_cmd.data_length) {
if (!datapduinorder) {
pdu[i].type = PDUTYPE_UNSOLICITED;
pdu[i].length =
offset += (cmd->se_cmd.data_length - offset);
continue;
}
- if ((offset +
- conn->conn_ops->MaxRecvDataSegmentLength) >=
+ if ((offset + mdsl) >=
conn->sess->sess_ops->FirstBurstLength) {
if (!datapduinorder) {
pdu[i].type = PDUTYPE_UNSOLICITED;
if (!datapduinorder) {
pdu[i].type = PDUTYPE_UNSOLICITED;
- pdu[i++].length =
- conn->conn_ops->MaxRecvDataSegmentLength;
+ pdu[i++].length = mdsl;
}
- burstlength += conn->conn_ops->MaxRecvDataSegmentLength;
- offset += conn->conn_ops->MaxRecvDataSegmentLength;
- unsolicited_data_length -=
- conn->conn_ops->MaxRecvDataSegmentLength;
+ burstlength += mdsl;
+ offset += mdsl;
+ unsolicited_data_length -= mdsl;
continue;
}
- if ((offset + conn->conn_ops->MaxRecvDataSegmentLength) >=
- cmd->se_cmd.data_length) {
+ if ((offset + mdsl) >= cmd->se_cmd.data_length) {
if (!datapduinorder) {
pdu[i].type = PDUTYPE_NORMAL;
pdu[i].length = (cmd->se_cmd.data_length - offset);
offset += (cmd->se_cmd.data_length - offset);
continue;
}
- if ((burstlength + conn->conn_ops->MaxRecvDataSegmentLength) >=
+ if ((burstlength + mdsl) >=
conn->sess->sess_ops->MaxBurstLength) {
if (!datapduinorder) {
pdu[i].type = PDUTYPE_NORMAL;
if (!datapduinorder) {
pdu[i].type = PDUTYPE_NORMAL;
- pdu[i++].length =
- conn->conn_ops->MaxRecvDataSegmentLength;
+ pdu[i++].length = mdsl;
}
- burstlength += conn->conn_ops->MaxRecvDataSegmentLength;
- offset += conn->conn_ops->MaxRecvDataSegmentLength;
+ burstlength += mdsl;
+ offset += mdsl;
}
if (!datasequenceinorder) {
if (!ref_cmd) {
pr_err("Unable to locate RefTaskTag: 0x%08x on CID:"
" %hu.\n", hdr->rtt, conn->cid);
- return ((hdr->refcmdsn >= conn->sess->exp_cmd_sn) &&
- (hdr->refcmdsn <= conn->sess->max_cmd_sn)) ?
+ return (be32_to_cpu(hdr->refcmdsn) >= conn->sess->exp_cmd_sn &&
+ be32_to_cpu(hdr->refcmdsn) <= conn->sess->max_cmd_sn) ?
ISCSI_TMF_RSP_COMPLETE : ISCSI_TMF_RSP_NO_TASK;
}
- if (ref_cmd->cmd_sn != hdr->refcmdsn) {
+ if (ref_cmd->cmd_sn != be32_to_cpu(hdr->refcmdsn)) {
pr_err("RefCmdSN 0x%08x does not equal"
" task's CmdSN 0x%08x. Rejecting ABORT_TASK.\n",
hdr->refcmdsn, ref_cmd->cmd_sn);
return ISCSI_TMF_RSP_REJECTED;
}
- se_tmr->ref_task_tag = hdr->rtt;
+ se_tmr->ref_task_tag = (__force u32)hdr->rtt;
tmr_req->ref_cmd = ref_cmd;
- tmr_req->ref_cmd_sn = hdr->refcmdsn;
- tmr_req->exp_data_sn = hdr->exp_datasn;
+ tmr_req->exp_data_sn = be32_to_cpu(hdr->exp_datasn);
return ISCSI_TMF_RSP_COMPLETE;
}
}
/*
* Temporary check to prevent connection recovery for
- * connections with a differing MaxRecvDataSegmentLength.
+ * connections with a differing Max*DataSegmentLength.
*/
if (cr->maxrecvdatasegmentlength !=
conn->conn_ops->MaxRecvDataSegmentLength) {
" TMR TASK_REASSIGN.\n");
return ISCSI_TMF_RSP_REJECTED;
}
+ if (cr->maxxmitdatasegmentlength !=
+ conn->conn_ops->MaxXmitDataSegmentLength) {
+ pr_err("Unable to perform connection recovery for"
+ " differing MaxXmitDataSegmentLength, rejecting"
+ " TMR TASK_REASSIGN.\n");
+ return ISCSI_TMF_RSP_REJECTED;
+ }
ref_lun = scsilun_to_int(&hdr->lun);
if (ref_lun != ref_cmd->se_cmd.orig_fe_lun) {
return ISCSI_TMF_RSP_REJECTED;
}
- se_tmr->ref_task_tag = hdr->rtt;
+ se_tmr->ref_task_tag = (__force u32)hdr->rtt;
tmr_req->ref_cmd = ref_cmd;
- tmr_req->ref_cmd_sn = hdr->refcmdsn;
- tmr_req->exp_data_sn = hdr->exp_datasn;
+ tmr_req->exp_data_sn = be32_to_cpu(hdr->exp_datasn);
tmr_req->conn_recovery = cr;
tmr_req->task_reassign = 1;
/*
* Right now the only one that its really needed for is
* connection recovery releated TASK_REASSIGN.
*/
-extern int iscsit_tmr_post_handler(struct iscsi_cmd *cmd, struct iscsi_conn *conn)
+int iscsit_tmr_post_handler(struct iscsi_cmd *cmd, struct iscsi_conn *conn)
{
struct iscsi_tmr_req *tmr_req = cmd->tmr_req;
struct se_tmr_req *se_tmr = cmd->se_cmd.se_tmr_req;
/*
* Nothing to do here, but leave it for good measure. :-)
*/
-int iscsit_task_reassign_prepare_read(
+static int iscsit_task_reassign_prepare_read(
struct iscsi_tmr_req *tmr_req,
struct iscsi_conn *conn)
{
}
}
-int iscsit_task_reassign_prepare_write(
+static int iscsit_task_reassign_prepare_write(
struct iscsi_tmr_req *tmr_req,
struct iscsi_conn *conn)
{
pr_debug("iSCSI_TPG[%hu] - Generate Initiator Portal Group ACLs: %s\n",
tpg->tpgt, (a->generate_node_acls) ? "Enabled" : "Disabled");
+ if (flag == 1 && a->cache_dynamic_acls == 0) {
+ pr_debug("Explicitly setting cache_dynamic_acls=1 when "
+ "generate_node_acls=1\n");
+ a->cache_dynamic_acls = 1;
+ }
+
return 0;
}
return -EINVAL;
}
+ if (a->generate_node_acls == 1 && flag == 0) {
+ pr_debug("Skipping cache_dynamic_acls=0 when"
+ " generate_node_acls=1\n");
+ return 0;
+ }
+
a->cache_dynamic_acls = flag;
pr_debug("iSCSI_TPG[%hu] - Cache Dynamic Initiator Portal Group"
" ACLs %s\n", tpg->tpgt, (a->cache_dynamic_acls) ?
spin_unlock(&active_ts_lock);
}
-extern void iscsi_add_ts_to_inactive_list(struct iscsi_thread_set *ts)
+static void iscsi_add_ts_to_inactive_list(struct iscsi_thread_set *ts)
{
spin_lock(&inactive_ts_lock);
list_add_tail(&ts->ts_list, &inactive_ts_list);
return ts;
}
-extern int iscsi_allocate_thread_sets(u32 thread_pair_count)
+int iscsi_allocate_thread_sets(u32 thread_pair_count)
{
int allocated_thread_pair_count = 0, i, thread_id;
struct iscsi_thread_set *ts = NULL;
return allocated_thread_pair_count;
}
-extern void iscsi_deallocate_thread_sets(void)
+void iscsi_deallocate_thread_sets(void)
{
u32 released_count = 0;
struct iscsi_thread_set *ts = NULL;
* Defines for thread sets.
*/
extern int iscsi_thread_set_force_reinstatement(struct iscsi_conn *);
-extern void iscsi_add_ts_to_inactive_list(struct iscsi_thread_set *);
extern int iscsi_allocate_thread_sets(u32);
extern void iscsi_deallocate_thread_sets(void);
extern void iscsi_activate_thread_set(struct iscsi_conn *, struct iscsi_thread_set *);
int iscsit_sequence_cmd(
struct iscsi_conn *conn,
struct iscsi_cmd *cmd,
- u32 cmdsn)
+ __be32 cmdsn)
{
int ret;
int cmdsn_ret;
mutex_lock(&conn->sess->cmdsn_mutex);
- cmdsn_ret = iscsit_check_received_cmdsn(conn->sess, cmdsn);
+ cmdsn_ret = iscsit_check_received_cmdsn(conn->sess, be32_to_cpu(cmdsn));
switch (cmdsn_ret) {
case CMDSN_NORMAL_OPERATION:
ret = iscsit_execute_cmd(cmd, 0);
iscsit_execute_ooo_cmdsns(conn->sess);
break;
case CMDSN_HIGHER_THAN_EXP:
- ret = iscsit_handle_ooo_cmdsn(conn->sess, cmd, cmdsn);
+ ret = iscsit_handle_ooo_cmdsn(conn->sess, cmd, be32_to_cpu(cmdsn));
break;
case CMDSN_LOWER_THAN_EXP:
cmd->i_state = ISTATE_REMOVE;
struct iscsi_cmd *iscsit_find_cmd_from_itt(
struct iscsi_conn *conn,
- u32 init_task_tag)
+ itt_t init_task_tag)
{
struct iscsi_cmd *cmd;
struct iscsi_cmd *iscsit_find_cmd_from_itt_or_dump(
struct iscsi_conn *conn,
- u32 init_task_tag,
+ itt_t init_task_tag,
u32 length)
{
struct iscsi_cmd *cmd;
struct iscsi_session *sess,
struct iscsi_cmd **cmd_ptr,
struct iscsi_conn_recovery **cr_ptr,
- u32 init_task_tag)
+ itt_t init_task_tag)
{
struct iscsi_cmd *cmd = NULL;
struct iscsi_conn_recovery *cr;
cmd->iscsi_opcode = ISCSI_OP_NOOP_IN;
state = (want_response) ? ISTATE_SEND_NOPIN_WANT_RESPONSE :
ISTATE_SEND_NOPIN_NO_RESPONSE;
- cmd->init_task_tag = 0xFFFFFFFF;
+ cmd->init_task_tag = RESERVED_ITT;
spin_lock_bh(&conn->sess->ttt_lock);
cmd->targ_xfer_tag = (want_response) ? conn->sess->targ_xfer_tag++ :
0xFFFFFFFF;
hdr->opcode = ISCSI_OP_LOGIN_RSP;
hdr->status_class = status_class;
hdr->status_detail = status_detail;
- hdr->itt = cpu_to_be32(conn->login_itt);
+ hdr->itt = conn->login_itt;
iov.iov_base = &iscsi_hdr;
iov.iov_len = ISCSI_HDR_LEN;
extern struct iscsi_seq *iscsit_get_seq_holder_for_datain(struct iscsi_cmd *, u32);
extern struct iscsi_seq *iscsit_get_seq_holder_for_r2t(struct iscsi_cmd *);
extern struct iscsi_r2t *iscsit_get_holder_for_r2tsn(struct iscsi_cmd *, u32);
-int iscsit_sequence_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd, u32 cmdsn);
+int iscsit_sequence_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd, __be32 cmdsn);
extern int iscsit_check_unsolicited_dataout(struct iscsi_cmd *, unsigned char *);
-extern struct iscsi_cmd *iscsit_find_cmd_from_itt(struct iscsi_conn *, u32);
+extern struct iscsi_cmd *iscsit_find_cmd_from_itt(struct iscsi_conn *, itt_t);
extern struct iscsi_cmd *iscsit_find_cmd_from_itt_or_dump(struct iscsi_conn *,
- u32, u32);
+ itt_t, u32);
extern struct iscsi_cmd *iscsit_find_cmd_from_ttt(struct iscsi_conn *, u32);
extern int iscsit_find_cmd_for_recovery(struct iscsi_session *, struct iscsi_cmd **,
- struct iscsi_conn_recovery **, u32);
+ struct iscsi_conn_recovery **, itt_t);
extern void iscsit_add_cmd_to_immediate_queue(struct iscsi_cmd *, struct iscsi_conn *, u8);
extern struct iscsi_queue_req *iscsit_get_cmd_from_immediate_queue(struct iscsi_conn *);
extern void iscsit_add_cmd_to_response_queue(struct iscsi_cmd *, struct iscsi_conn *, u8);
struct tcm_loop_tpg *tl_tpg;
struct scatterlist *sgl_bidi = NULL;
u32 sgl_bidi_count = 0;
- int ret;
+ int rc;
tl_hba = *(struct tcm_loop_hba **)shost_priv(sc->device->host);
tl_tpg = &tl_hba->tl_hba_tpgs[sc->device->id];
set_host_byte(sc, DID_ERROR);
goto out_done;
}
-
- transport_init_se_cmd(se_cmd, tl_tpg->tl_se_tpg.se_tpg_tfo,
- tl_nexus->se_sess,
- scsi_bufflen(sc), sc->sc_data_direction,
- tcm_loop_sam_attr(sc), &tl_cmd->tl_sense_buf[0]);
-
if (scsi_bidi_cmnd(sc)) {
struct scsi_data_buffer *sdb = scsi_in(sc);
se_cmd->se_cmd_flags |= SCF_BIDI;
}
-
- if (transport_lookup_cmd_lun(se_cmd, tl_cmd->sc->device->lun) < 0) {
- kmem_cache_free(tcm_loop_cmd_cache, tl_cmd);
+ rc = target_submit_cmd_map_sgls(se_cmd, tl_nexus->se_sess, sc->cmnd,
+ &tl_cmd->tl_sense_buf[0], tl_cmd->sc->device->lun,
+ scsi_bufflen(sc), tcm_loop_sam_attr(sc),
+ sc->sc_data_direction, 0,
+ scsi_sglist(sc), scsi_sg_count(sc),
+ sgl_bidi, sgl_bidi_count);
+ if (rc < 0) {
set_host_byte(sc, DID_NO_CONNECT);
goto out_done;
}
-
- /*
- * Because some userspace code via scsi-generic do not memset their
- * associated read buffers, go ahead and do that here for type
- * non-data CDBs. Also note that this is currently guaranteed to be a
- * single SGL for this case by target core in
- * target_setup_cmd_from_cdb() -> transport_generic_cmd_sequencer().
- */
- if (!(se_cmd->se_cmd_flags & SCF_SCSI_DATA_CDB) &&
- se_cmd->data_direction == DMA_FROM_DEVICE) {
- struct scatterlist *sg = scsi_sglist(sc);
- unsigned char *buf = kmap(sg_page(sg)) + sg->offset;
-
- if (buf != NULL) {
- memset(buf, 0, sg->length);
- kunmap(sg_page(sg));
- }
- }
-
- ret = target_setup_cmd_from_cdb(se_cmd, sc->cmnd);
- if (ret == -ENOMEM) {
- transport_send_check_condition_and_sense(se_cmd,
- TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE, 0);
- transport_generic_free_cmd(se_cmd, 0);
- return;
- } else if (ret < 0) {
- if (se_cmd->se_cmd_flags & SCF_SCSI_RESERVATION_CONFLICT)
- tcm_loop_queue_status(se_cmd);
- else
- transport_send_check_condition_and_sense(se_cmd,
- se_cmd->scsi_sense_reason, 0);
- transport_generic_free_cmd(se_cmd, 0);
- return;
- }
-
- ret = transport_generic_map_mem_to_cmd(se_cmd, scsi_sglist(sc),
- scsi_sg_count(sc), sgl_bidi, sgl_bidi_count);
- if (ret) {
- transport_send_check_condition_and_sense(se_cmd,
- se_cmd->scsi_sense_reason, 0);
- transport_generic_free_cmd(se_cmd, 0);
- return;
- }
- transport_handle_cdb_direct(se_cmd);
return;
out_done:
return 0;
}
-static u16 tcm_loop_set_fabric_sense_len(struct se_cmd *se_cmd, u32 sense_length)
-{
- return 0;
-}
-
-static u16 tcm_loop_get_fabric_sense_len(void)
-{
- return 0;
-}
-
static char *tcm_loop_dump_proto_id(struct tcm_loop_hba *tl_hba)
{
switch (tl_hba->tl_proto_id) {
fabric->tf_ops.queue_data_in = &tcm_loop_queue_data_in;
fabric->tf_ops.queue_status = &tcm_loop_queue_status;
fabric->tf_ops.queue_tm_rsp = &tcm_loop_queue_tm_rsp;
- fabric->tf_ops.set_fabric_sense_len = &tcm_loop_set_fabric_sense_len;
- fabric->tf_ops.get_fabric_sense_len = &tcm_loop_get_fabric_sense_len;
/*
* Setup function pointers for generic logic in target_core_fabric_configfs.c
spin_lock_bh(&sess->lock);
list_for_each_entry_safe(login, temp, &sess->login_list, link) {
login->sess = NULL;
- list_del(&login->link);
- list_add_tail(&login->link, &login_list);
+ list_move_tail(&login->link, &login_list);
}
spin_unlock_bh(&sess->lock);
return 0;
}
-static u16 sbp_set_fabric_sense_len(struct se_cmd *se_cmd, u32 sense_length)
-{
- return 0;
-}
-
-static u16 sbp_get_fabric_sense_len(void)
-{
- return 0;
-}
-
static int sbp_check_stop_free(struct se_cmd *se_cmd)
{
struct sbp_target_request *req = container_of(se_cmd,
return ret;
}
-static ssize_t sbp_parse_wwn(const char *name, u64 *wwn, int strict)
+static ssize_t sbp_parse_wwn(const char *name, u64 *wwn)
{
const char *cp;
char c, nibble;
err = 3;
if (isdigit(c))
nibble = c - '0';
- else if (isxdigit(c) && (islower(c) || !strict))
+ else if (isxdigit(c))
nibble = tolower(c) - 'a' + 10;
else
goto fail;
u64 guid = 0;
u32 nexus_depth = 1;
- if (sbp_parse_wwn(name, &guid, 1) < 0)
+ if (sbp_parse_wwn(name, &guid) < 0)
return ERR_PTR(-EINVAL);
se_nacl_new = sbp_alloc_fabric_acl(se_tpg);
struct sbp_tport *tport;
u64 guid = 0;
- if (sbp_parse_wwn(name, &guid, 1) < 0)
+ if (sbp_parse_wwn(name, &guid) < 0)
return ERR_PTR(-EINVAL);
tport = kzalloc(sizeof(*tport), GFP_KERNEL);
.queue_data_in = sbp_queue_data_in,
.queue_status = sbp_queue_status,
.queue_tm_rsp = sbp_queue_tm_rsp,
- .get_fabric_sense_len = sbp_get_fabric_sense_len,
- .set_fabric_sense_len = sbp_set_fabric_sense_len,
.check_stop_free = sbp_check_stop_free,
.fabric_make_wwn = sbp_make_tport,
int ret;
fabric = target_fabric_configfs_init(THIS_MODULE, "sbp");
- if (!fabric) {
+ if (IS_ERR(fabric)) {
pr_err("target_fabric_configfs_init() failed\n");
- return -ENOMEM;
+ return PTR_ERR(fabric);
}
fabric->tf_ops = sbp_ops;
*/
rtpi = get_unaligned_be16(ptr + 2);
/*
- * Locate the matching relative target port identifer
+ * Locate the matching relative target port identifier
* for the struct se_device storage object.
*/
spin_lock(&dev->se_port_lock);
pr_err("Missing tfo->queue_tm_rsp()\n");
return -EINVAL;
}
- if (!tfo->set_fabric_sense_len) {
- pr_err("Missing tfo->set_fabric_sense_len()\n");
- return -EINVAL;
- }
- if (!tfo->get_fabric_sense_len) {
- pr_err("Missing tfo->get_fabric_sense_len()\n");
- return -EINVAL;
- }
/*
* We at least require tfo->fabric_make_wwn(), tfo->fabric_drop_wwn()
* tfo->fabric_make_tpg() and tfo->fabric_drop_tpg() in
" Target Node Endpoint: %s\n", tfo->get_fabric_name(),
tfo->tpg_get_wwn(se_tpg));
len += sprintf(page+len, "SPC-3 Reservation: Relative Port"
- " Identifer Tag: %hu %s Portal Group Tag: %hu"
+ " Identifier Tag: %hu %s Portal Group Tag: %hu"
" %s Logical Unit: %u\n", lun->lun_sep->sep_rtpi,
tfo->get_fabric_name(), tfo->tpg_get_tag(se_tpg),
tfo->get_fabric_name(), lun->unpacked_lun);
GFP_KERNEL);
if (!target_cg->default_groups) {
pr_err("Unable to allocate target_cg->default_groups\n");
+ ret = -ENOMEM;
goto out_global;
}
GFP_KERNEL);
if (!hba_cg->default_groups) {
pr_err("Unable to allocate hba_cg->default_groups\n");
+ ret = -ENOMEM;
goto out_global;
}
config_group_init_type_name(&alua_group,
GFP_KERNEL);
if (!alua_cg->default_groups) {
pr_err("Unable to allocate alua_cg->default_groups\n");
+ ret = -ENOMEM;
goto out_global;
}
* Add core/alua/lu_gps/default_lu_gp
*/
lu_gp = core_alua_allocate_lu_gp("default_lu_gp", 1);
- if (IS_ERR(lu_gp))
+ if (IS_ERR(lu_gp)) {
+ ret = -ENOMEM;
goto out_global;
+ }
lu_gp_cg = &alua_lu_gps_group;
lu_gp_cg->default_groups = kzalloc(sizeof(struct config_group) * 2,
GFP_KERNEL);
if (!lu_gp_cg->default_groups) {
pr_err("Unable to allocate lu_gp_cg->default_groups\n");
+ ret = -ENOMEM;
goto out_global;
}
}
again:
/*
- * Allocate the next RELATIVE TARGET PORT IDENTIFER for this struct se_device
+ * Allocate the next RELATIVE TARGET PORT IDENTIFIER for this struct se_device
* Here is the table from spc4r17 section 7.7.3.8.
*
* Table 473 -- RELATIVE TARGET PORT IDENTIFIER field
list_for_each_entry(port_tmp, &dev->dev_sep_list, sep_list) {
/*
- * Make sure RELATIVE TARGET PORT IDENTIFER is unique
+ * Make sure RELATIVE TARGET PORT IDENTIFIER is unique
* for 16-bit wrap..
*/
if (port->sep_rtpi == port_tmp->sep_rtpi)
}
dev->dev_port_count++;
- port->sep_index = port->sep_rtpi; /* RELATIVE TARGET PORT IDENTIFER */
+ port->sep_index = port->sep_rtpi; /* RELATIVE TARGET PORT IDENTIFIER */
}
/*
return -EINVAL;
}
- if (flag && dev->transport->fua_write_emulated == 0) {
- pr_err("fua_write_emulated not supported\n");
+ if (flag &&
+ dev->transport->transport_type == TRANSPORT_PLUGIN_PHBA_PDEV) {
+ pr_err("emulate_fua_write not supported for pSCSI\n");
return -EINVAL;
}
dev->se_sub_dev->se_dev_attrib.emulate_fua_write = flag;
pr_err("Illegal value %d\n", flag);
return -EINVAL;
}
- if (flag && dev->transport->write_cache_emulated == 0) {
- pr_err("write_cache_emulated not supported\n");
+ if (flag &&
+ dev->transport->transport_type == TRANSPORT_PLUGIN_PHBA_PDEV) {
+ pr_err("emulate_write_cache not supported for pSCSI\n");
return -EINVAL;
}
dev->se_sub_dev->se_dev_attrib.emulate_write_cache = flag;
#include <linux/module.h>
#include <linux/moduleparam.h>
-#include <generated/utsrelease.h>
#include <linux/utsname.h>
#include <linux/init.h>
#include <linux/fs.h>
* 00b: iSCSI Initiator device TransportID format
*/
if (pr_reg->isid_present_at_reg) {
- len += 5; /* For ",i,0x" ASCII seperator */
+ len += 5; /* For ",i,0x" ASCII separator */
len += 7; /* For iSCSI Initiator Session ID + Null terminator */
*format_code = 1;
} else
*out_tid_len = (add_len + 4);
}
/*
- * Check for ',i,0x' seperator between iSCSI Name and iSCSI Initiator
+ * Check for ',i,0x' separator between iSCSI Name and iSCSI Initiator
* Session ID as defined in Table 390 - iSCSI initiator port TransportID
* format.
*/
if (format_code == 0x40) {
p = strstr(&buf[4], ",i,0x");
if (!p) {
- pr_err("Unable to locate \",i,0x\" seperator"
+ pr_err("Unable to locate \",i,0x\" separator"
" for Initiator port identifier: %s\n",
&buf[4]);
return NULL;
}
*p = '\0'; /* Terminate iSCSI Name */
- p += 5; /* Skip over ",i,0x" seperator */
+ p += 5; /* Skip over ",i,0x" separator */
*port_nexus_ptr = p;
/*
* of pure timestamp updates.
*/
flags = O_RDWR | O_CREAT | O_LARGEFILE | O_DSYNC;
+ /*
+ * Optionally allow fd_buffered_io=1 to be enabled for people
+ * who want use the fs buffer cache as an WriteCache mechanism.
+ *
+ * This means that in event of a hard failure, there is a risk
+ * of silent data-loss if the SCSI client has *not* performed a
+ * forced unit access (FUA) write, or issued SYNCHRONIZE_CACHE
+ * to write-out the entire device cache.
+ */
+ if (fd_dev->fbd_flags & FDBD_HAS_BUFFERED_IO_WCE) {
+ pr_debug("FILEIO: Disabling O_DSYNC, using buffered FILEIO\n");
+ flags &= ~O_DSYNC;
+ }
file = filp_open(fd_dev->fd_dev_name, flags, 0600);
if (IS_ERR(file)) {
if (!dev)
goto fail;
+ if (fd_dev->fbd_flags & FDBD_HAS_BUFFERED_IO_WCE) {
+ pr_debug("FILEIO: Forcing setting of emulate_write_cache=1"
+ " with FDBD_HAS_BUFFERED_IO_WCE\n");
+ dev->se_sub_dev->se_dev_attrib.emulate_write_cache = 1;
+ }
+
fd_dev->fd_dev_id = fd_host->fd_host_dev_id_count++;
fd_dev->fd_queue_depth = dev->queue_depth;
static match_table_t tokens = {
{Opt_fd_dev_name, "fd_dev_name=%s"},
{Opt_fd_dev_size, "fd_dev_size=%s"},
+ {Opt_fd_buffered_io, "fd_buffered_io=%d"},
{Opt_err, NULL}
};
struct fd_dev *fd_dev = se_dev->se_dev_su_ptr;
char *orig, *ptr, *arg_p, *opts;
substring_t args[MAX_OPT_ARGS];
- int ret = 0, token;
+ int ret = 0, arg, token;
opts = kstrdup(page, GFP_KERNEL);
if (!opts)
" bytes\n", fd_dev->fd_dev_size);
fd_dev->fbd_flags |= FBDF_HAS_SIZE;
break;
+ case Opt_fd_buffered_io:
+ match_int(args, &arg);
+ if (arg != 1) {
+ pr_err("bogus fd_buffered_io=%d value\n", arg);
+ ret = -EINVAL;
+ goto out;
+ }
+
+ pr_debug("FILEIO: Using buffered I/O"
+ " operations for struct fd_dev\n");
+
+ fd_dev->fbd_flags |= FDBD_HAS_BUFFERED_IO_WCE;
+ break;
default:
break;
}
ssize_t bl = 0;
bl = sprintf(b + bl, "TCM FILEIO ID: %u", fd_dev->fd_dev_id);
- bl += sprintf(b + bl, " File: %s Size: %llu Mode: O_DSYNC\n",
- fd_dev->fd_dev_name, fd_dev->fd_dev_size);
+ bl += sprintf(b + bl, " File: %s Size: %llu Mode: %s\n",
+ fd_dev->fd_dev_name, fd_dev->fd_dev_size,
+ (fd_dev->fbd_flags & FDBD_HAS_BUFFERED_IO_WCE) ?
+ "Buffered-WCE" : "O_DSYNC");
return bl;
}
.name = "fileio",
.owner = THIS_MODULE,
.transport_type = TRANSPORT_PLUGIN_VHBA_PDEV,
- .write_cache_emulated = 1,
- .fua_write_emulated = 1,
.attach_hba = fd_attach_hba,
.detach_hba = fd_detach_hba,
.allocate_virtdevice = fd_allocate_virtdevice,
#define FBDF_HAS_PATH 0x01
#define FBDF_HAS_SIZE 0x02
+#define FDBD_HAS_BUFFERED_IO_WCE 0x04
struct fd_dev {
u32 fbd_flags;
ret = -EEXIST;
goto out;
}
- arg_p = match_strdup(&args[0]);
- if (!arg_p) {
- ret = -ENOMEM;
+ if (match_strlcpy(ib_dev->ibd_udev_path, &args[0],
+ SE_UDEV_PATH_LEN) == 0) {
+ ret = -EINVAL;
break;
}
- snprintf(ib_dev->ibd_udev_path, SE_UDEV_PATH_LEN,
- "%s", arg_p);
- kfree(arg_p);
pr_debug("IBLOCK: Referencing UDEV path: %s\n",
ib_dev->ibd_udev_path);
ib_dev->ibd_flags |= IBDF_HAS_UDEV_PATH;
goto fail;
cmd->priv = ibr;
+ if (!sgl_nents) {
+ atomic_set(&ibr->pending, 1);
+ iblock_complete_cmd(cmd);
+ return 0;
+ }
+
bio = iblock_get_bio(cmd, block_lba, sgl_nents);
if (!bio)
goto fail_free_ibr;
.name = "iblock",
.owner = THIS_MODULE,
.transport_type = TRANSPORT_PLUGIN_VHBA_PDEV,
- .write_cache_emulated = 1,
- .fua_write_emulated = 1,
.attach_hba = iblock_attach_hba,
.detach_hba = iblock_detach_hba,
.allocate_virtdevice = iblock_allocate_virtdevice,
{
struct se_device *dev = cmd->se_dev;
struct se_session *sess = cmd->se_sess;
- struct se_portal_group *tpg = sess->se_tpg;
+ struct se_portal_group *tpg;
int ret = 0, rc;
- if (!sess || !tpg)
+ if (!sess || !sess->se_tpg)
goto out;
rc = target_check_scsi2_reservation_conflict(cmd);
if (rc == 1)
dev->dev_res_bin_isid = 0;
dev->dev_flags &= ~DF_SPC2_RESERVATIONS_WITH_ISID;
}
+ tpg = sess->se_tpg;
pr_debug("SCSI-2 Released reservation for %s LUN: %u ->"
" MAPPED LUN: %u for %s\n", tpg->se_tpg_tfo->get_fabric_name(),
cmd->se_lun->unpacked_lun, cmd->se_deve->mapped_lun,
{
struct se_device *dev = cmd->se_dev;
struct se_session *sess = cmd->se_sess;
- struct se_portal_group *tpg = sess->se_tpg;
+ struct se_portal_group *tpg;
int ret = 0, rc;
if ((cmd->t_task_cdb[1] & 0x01) &&
* This is currently the case for target_core_mod passthrough struct se_cmd
* ops
*/
- if (!sess || !tpg)
+ if (!sess || !sess->se_tpg)
goto out;
rc = target_check_scsi2_reservation_conflict(cmd);
if (rc == 1)
}
ret = 0;
+ tpg = sess->se_tpg;
spin_lock(&dev->dev_reservation_lock);
if (dev->dev_reserved_node_acl &&
(dev->dev_reserved_node_acl != sess->se_node_acl)) {
goto out;
}
/*
- * Locate the desination initiator ACL to be registered
+ * Locate the destination initiator ACL to be registered
* from the decoded fabric module specific TransportID
* at *i_str.
*/
buf[off++] = ((port->sep_rtpi >> 8) & 0xff);
buf[off++] = (port->sep_rtpi & 0xff);
} else
- off += 2; /* Skip over RELATIVE TARGET PORT IDENTIFER */
+ off += 2; /* Skip over RELATIVE TARGET PORT IDENTIFIER */
/*
* Now, have the $FABRIC_MOD fill in the protocol identifier
" length zero!\n");
break;
}
- pr_debug("T10 VPD Identifer Length: %d\n", ident_len);
+ pr_debug("T10 VPD Identifier Length: %d\n", ident_len);
vpd = kzalloc(sizeof(struct t10_vpd), GFP_KERNEL);
if (!vpd) {
static int sbc_emulate_readcapacity(struct se_cmd *cmd)
{
struct se_device *dev = cmd->se_dev;
- unsigned char *buf;
unsigned long long blocks_long = dev->transport->get_blocks(dev);
+ unsigned char *rbuf;
+ unsigned char buf[8];
u32 blocks;
if (blocks_long >= 0x00000000ffffffff)
else
blocks = (u32)blocks_long;
- buf = transport_kmap_data_sg(cmd);
-
buf[0] = (blocks >> 24) & 0xff;
buf[1] = (blocks >> 16) & 0xff;
buf[2] = (blocks >> 8) & 0xff;
buf[6] = (dev->se_sub_dev->se_dev_attrib.block_size >> 8) & 0xff;
buf[7] = dev->se_sub_dev->se_dev_attrib.block_size & 0xff;
- transport_kunmap_data_sg(cmd);
+ rbuf = transport_kmap_data_sg(cmd);
+ if (rbuf) {
+ memcpy(rbuf, buf, min_t(u32, sizeof(buf), cmd->data_length));
+ transport_kunmap_data_sg(cmd);
+ }
target_complete_cmd(cmd, GOOD);
return 0;
static int sbc_emulate_readcapacity_16(struct se_cmd *cmd)
{
struct se_device *dev = cmd->se_dev;
- unsigned char *buf;
+ unsigned char *rbuf;
+ unsigned char buf[32];
unsigned long long blocks = dev->transport->get_blocks(dev);
- buf = transport_kmap_data_sg(cmd);
-
+ memset(buf, 0, sizeof(buf));
buf[0] = (blocks >> 56) & 0xff;
buf[1] = (blocks >> 48) & 0xff;
buf[2] = (blocks >> 40) & 0xff;
if (dev->se_sub_dev->se_dev_attrib.emulate_tpu || dev->se_sub_dev->se_dev_attrib.emulate_tpws)
buf[14] = 0x80;
- transport_kunmap_data_sg(cmd);
+ rbuf = transport_kmap_data_sg(cmd);
+ if (rbuf) {
+ memcpy(rbuf, buf, min_t(u32, sizeof(buf), cmd->data_length));
+ transport_kunmap_data_sg(cmd);
+ }
target_complete_cmd(cmd, GOOD);
return 0;
{
struct se_device *dev = cmd->se_dev;
struct se_portal_group *tpg = cmd->se_lun->lun_sep->sep_tpg;
- unsigned char *buf, *map_buf;
+ unsigned char *rbuf;
unsigned char *cdb = cmd->t_task_cdb;
+ unsigned char buf[SE_INQUIRY_BUF];
int p, ret;
- map_buf = transport_kmap_data_sg(cmd);
- /*
- * If SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC is not set, then we
- * know we actually allocated a full page. Otherwise, if the
- * data buffer is too small, allocate a temporary buffer so we
- * don't have to worry about overruns in all our INQUIRY
- * emulation handling.
- */
- if (cmd->data_length < SE_INQUIRY_BUF &&
- (cmd->se_cmd_flags & SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC)) {
- buf = kzalloc(SE_INQUIRY_BUF, GFP_KERNEL);
- if (!buf) {
- transport_kunmap_data_sg(cmd);
- cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
- return -ENOMEM;
- }
- } else {
- buf = map_buf;
- }
-
if (dev == tpg->tpg_virt_lun0.lun_se_dev)
buf[0] = 0x3f; /* Not connected */
else
ret = -EINVAL;
out:
- if (buf != map_buf) {
- memcpy(map_buf, buf, cmd->data_length);
- kfree(buf);
+ rbuf = transport_kmap_data_sg(cmd);
+ if (rbuf) {
+ memcpy(rbuf, buf, min_t(u32, sizeof(buf), cmd->data_length));
+ transport_kunmap_data_sg(cmd);
}
- transport_kunmap_data_sg(cmd);
if (!ret)
target_complete_cmd(cmd, GOOD);
unsigned char *rbuf;
int type = dev->transport->get_device_type(dev);
int ten = (cmd->t_task_cdb[0] == MODE_SENSE_10);
- int offset = ten ? 8 : 4;
+ u32 offset = ten ? 8 : 4;
int length = 0;
unsigned char buf[SE_MODE_PAGE_BUF];
offset -= 2;
buf[0] = (offset >> 8) & 0xff;
buf[1] = offset & 0xff;
+ offset += 2;
if ((cmd->se_lun->lun_access & TRANSPORT_LUNFLAGS_READ_ONLY) ||
(cmd->se_deve &&
if ((dev->se_sub_dev->se_dev_attrib.emulate_write_cache > 0) &&
(dev->se_sub_dev->se_dev_attrib.emulate_fua_write > 0))
spc_modesense_dpofua(&buf[3], type);
-
- if ((offset + 2) > cmd->data_length)
- offset = cmd->data_length;
-
} else {
offset -= 1;
buf[0] = offset & 0xff;
+ offset += 1;
if ((cmd->se_lun->lun_access & TRANSPORT_LUNFLAGS_READ_ONLY) ||
(cmd->se_deve &&
if ((dev->se_sub_dev->se_dev_attrib.emulate_write_cache > 0) &&
(dev->se_sub_dev->se_dev_attrib.emulate_fua_write > 0))
spc_modesense_dpofua(&buf[2], type);
-
- if ((offset + 1) > cmd->data_length)
- offset = cmd->data_length;
}
rbuf = transport_kmap_data_sg(cmd);
- memcpy(rbuf, buf, offset);
- transport_kunmap_data_sg(cmd);
+ if (rbuf) {
+ memcpy(rbuf, buf, min(offset, cmd->data_length));
+ transport_kunmap_data_sg(cmd);
+ }
target_complete_cmd(cmd, GOOD);
return 0;
#include <linux/delay.h>
#include <linux/timer.h>
#include <linux/string.h>
-#include <generated/utsrelease.h>
#include <linux/utsname.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
}
/*
* Here we only create demo-mode MappedLUNs from the active
- * TPG LUNs if the fabric is not explictly asking for
+ * TPG LUNs if the fabric is not explicitly asking for
* tpg_check_demo_mode_login_only() == 1.
*/
if ((tpg->se_tpg_tfo->tpg_check_demo_mode_login_only == NULL) ||
#include "target_core_pr.h"
#include "target_core_ua.h"
-static int sub_api_initialized;
-
static struct workqueue_struct *target_completion_wq;
static struct kmem_cache *se_sess_cache;
struct kmem_cache *se_ua_cache;
void transport_subsystem_check_init(void)
{
int ret;
+ static int sub_api_initialized;
if (sub_api_initialized)
return;
if (ret != 0)
pr_err("Unable to load target_core_pscsi\n");
- ret = request_module("target_core_stgt");
- if (ret != 0)
- pr_err("Unable to load target_core_stgt\n");
-
sub_api_initialized = 1;
- return;
}
struct se_session *transport_init_session(void)
*/
static unsigned char *transport_get_sense_buffer(struct se_cmd *cmd)
{
- unsigned char *buffer = cmd->sense_buffer;
struct se_device *dev = cmd->se_dev;
- u32 offset = 0;
WARN_ON(!cmd->se_lun);
if (cmd->se_cmd_flags & SCF_SENT_CHECK_CONDITION)
return NULL;
- offset = cmd->se_tfo->set_fabric_sense_len(cmd, TRANSPORT_SENSE_BUFFER);
-
- /* Automatically padded */
- cmd->scsi_sense_length = TRANSPORT_SENSE_BUFFER + offset;
+ cmd->scsi_sense_length = TRANSPORT_SENSE_BUFFER;
pr_debug("HBA_[%u]_PLUG[%s]: Requesting sense for SAM STATUS: 0x%02x\n",
dev->se_hba->hba_id, dev->transport->name, cmd->scsi_status);
- return &buffer[offset];
+ return cmd->sense_buffer;
}
void target_complete_cmd(struct se_cmd *cmd, u8 scsi_status)
transport_set_vpd_ident(struct t10_vpd *vpd, unsigned char *page_83)
{
static const char hex_str[] = "0123456789abcdef";
- int j = 0, i = 4; /* offset to start of the identifer */
+ int j = 0, i = 4; /* offset to start of the identifier */
/*
* The VPD Code Set (encoding)
}
EXPORT_SYMBOL(transport_handle_cdb_direct);
-/**
- * target_submit_cmd - lookup unpacked lun and submit uninitialized se_cmd
+/*
+ * target_submit_cmd_map_sgls - lookup unpacked lun and submit uninitialized
+ * se_cmd + use pre-allocated SGL memory.
*
* @se_cmd: command descriptor to submit
* @se_sess: associated se_sess for endpoint
* @task_addr: SAM task attribute
* @data_dir: DMA data direction
* @flags: flags for command submission from target_sc_flags_tables
+ * @sgl: struct scatterlist memory for unidirectional mapping
+ * @sgl_count: scatterlist count for unidirectional mapping
+ * @sgl_bidi: struct scatterlist memory for bidirectional READ mapping
+ * @sgl_bidi_count: scatterlist count for bidirectional READ mapping
*
* Returns non zero to signal active I/O shutdown failure. All other
* setup exceptions will be returned as a SCSI CHECK_CONDITION response,
*
* This may only be called from process context, and also currently
* assumes internal allocation of fabric payload buffer by target-core.
- **/
-int target_submit_cmd(struct se_cmd *se_cmd, struct se_session *se_sess,
+ */
+int target_submit_cmd_map_sgls(struct se_cmd *se_cmd, struct se_session *se_sess,
unsigned char *cdb, unsigned char *sense, u32 unpacked_lun,
- u32 data_length, int task_attr, int data_dir, int flags)
+ u32 data_length, int task_attr, int data_dir, int flags,
+ struct scatterlist *sgl, u32 sgl_count,
+ struct scatterlist *sgl_bidi, u32 sgl_bidi_count)
{
struct se_portal_group *se_tpg;
int rc;
transport_generic_request_failure(se_cmd);
return 0;
}
+ /*
+ * When a non zero sgl_count has been passed perform SGL passthrough
+ * mapping for pre-allocated fabric memory instead of having target
+ * core perform an internal SGL allocation..
+ */
+ if (sgl_count != 0) {
+ BUG_ON(!sgl);
+
+ /*
+ * A work-around for tcm_loop as some userspace code via
+ * scsi-generic do not memset their associated read buffers,
+ * so go ahead and do that here for type non-data CDBs. Also
+ * note that this is currently guaranteed to be a single SGL
+ * for this case by target core in target_setup_cmd_from_cdb()
+ * -> transport_generic_cmd_sequencer().
+ */
+ if (!(se_cmd->se_cmd_flags & SCF_SCSI_DATA_CDB) &&
+ se_cmd->data_direction == DMA_FROM_DEVICE) {
+ unsigned char *buf = NULL;
+
+ if (sgl)
+ buf = kmap(sg_page(sgl)) + sgl->offset;
+
+ if (buf) {
+ memset(buf, 0, sgl->length);
+ kunmap(sg_page(sgl));
+ }
+ }
+ rc = transport_generic_map_mem_to_cmd(se_cmd, sgl, sgl_count,
+ sgl_bidi, sgl_bidi_count);
+ if (rc != 0) {
+ transport_generic_request_failure(se_cmd);
+ return 0;
+ }
+ }
/*
* Check if we need to delay processing because of ALUA
* Active/NonOptimized primary access state..
transport_handle_cdb_direct(se_cmd);
return 0;
}
+EXPORT_SYMBOL(target_submit_cmd_map_sgls);
+
+/*
+ * target_submit_cmd - lookup unpacked lun and submit uninitialized se_cmd
+ *
+ * @se_cmd: command descriptor to submit
+ * @se_sess: associated se_sess for endpoint
+ * @cdb: pointer to SCSI CDB
+ * @sense: pointer to SCSI sense buffer
+ * @unpacked_lun: unpacked LUN to reference for struct se_lun
+ * @data_length: fabric expected data transfer length
+ * @task_addr: SAM task attribute
+ * @data_dir: DMA data direction
+ * @flags: flags for command submission from target_sc_flags_tables
+ *
+ * Returns non zero to signal active I/O shutdown failure. All other
+ * setup exceptions will be returned as a SCSI CHECK_CONDITION response,
+ * but still return zero here.
+ *
+ * This may only be called from process context, and also currently
+ * assumes internal allocation of fabric payload buffer by target-core.
+ *
+ * It also assumes interal target core SGL memory allocation.
+ */
+int target_submit_cmd(struct se_cmd *se_cmd, struct se_session *se_sess,
+ unsigned char *cdb, unsigned char *sense, u32 unpacked_lun,
+ u32 data_length, int task_attr, int data_dir, int flags)
+{
+ return target_submit_cmd_map_sgls(se_cmd, se_sess, cdb, sense,
+ unpacked_lun, data_length, task_attr, data_dir,
+ flags, NULL, 0, NULL, 0);
+}
EXPORT_SYMBOL(target_submit_cmd);
static void target_complete_tmr_failure(struct work_struct *work)
if (ret < 0)
goto out_fail;
}
- /*
- * If this command doesn't have any payload and we don't have to call
- * into the fabric for data transfers, go ahead and complete it right
- * away.
- */
- if (!cmd->data_length &&
- cmd->t_task_cdb[0] != REQUEST_SENSE &&
- cmd->se_dev->transport->transport_type != TRANSPORT_PLUGIN_PHBA_PDEV) {
- spin_lock_irq(&cmd->t_state_lock);
- cmd->t_state = TRANSPORT_COMPLETE;
- cmd->transport_state |= CMD_T_ACTIVE;
- spin_unlock_irq(&cmd->t_state_lock);
-
- INIT_WORK(&cmd->work, target_complete_ok_work);
- queue_work(target_completion_wq, &cmd->work);
- return 0;
- }
atomic_inc(&cmd->t_fe_count);
spin_lock_irqsave(&cmd->t_state_lock, flags);
cmd->transport_state &= ~(CMD_T_ACTIVE | CMD_T_STOP);
- pr_debug("wait_for_tasks: Stopped wait_for_compltion("
+ pr_debug("wait_for_tasks: Stopped wait_for_completion("
"&cmd->t_transport_stop_comp) for ITT: 0x%08x\n",
cmd->se_tfo->get_task_tag(cmd));
{
unsigned char *buffer = cmd->sense_buffer;
unsigned long flags;
- int offset;
u8 asc = 0, ascq = 0;
spin_lock_irqsave(&cmd->t_state_lock, flags);
if (!from_transport)
cmd->se_cmd_flags |= SCF_EMULATED_TASK_SENSE;
- /*
- * Data Segment and SenseLength of the fabric response PDU.
- *
- * TRANSPORT_SENSE_BUFFER is now set to SCSI_SENSE_BUFFERSIZE
- * from include/scsi/scsi_cmnd.h
- */
- offset = cmd->se_tfo->set_fabric_sense_len(cmd,
- TRANSPORT_SENSE_BUFFER);
+
/*
* Actual SENSE DATA, see SPC-3 7.23.2 SPC_SENSE_KEY_OFFSET uses
* SENSE KEY values from include/scsi/scsi.h
switch (reason) {
case TCM_NON_EXISTENT_LUN:
/* CURRENT ERROR */
- buffer[offset] = 0x70;
- buffer[offset+SPC_ADD_SENSE_LEN_OFFSET] = 10;
+ buffer[0] = 0x70;
+ buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10;
/* ILLEGAL REQUEST */
- buffer[offset+SPC_SENSE_KEY_OFFSET] = ILLEGAL_REQUEST;
+ buffer[SPC_SENSE_KEY_OFFSET] = ILLEGAL_REQUEST;
/* LOGICAL UNIT NOT SUPPORTED */
- buffer[offset+SPC_ASC_KEY_OFFSET] = 0x25;
+ buffer[SPC_ASC_KEY_OFFSET] = 0x25;
break;
case TCM_UNSUPPORTED_SCSI_OPCODE:
case TCM_SECTOR_COUNT_TOO_MANY:
/* CURRENT ERROR */
- buffer[offset] = 0x70;
- buffer[offset+SPC_ADD_SENSE_LEN_OFFSET] = 10;
+ buffer[0] = 0x70;
+ buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10;
/* ILLEGAL REQUEST */
- buffer[offset+SPC_SENSE_KEY_OFFSET] = ILLEGAL_REQUEST;
+ buffer[SPC_SENSE_KEY_OFFSET] = ILLEGAL_REQUEST;
/* INVALID COMMAND OPERATION CODE */
- buffer[offset+SPC_ASC_KEY_OFFSET] = 0x20;
+ buffer[SPC_ASC_KEY_OFFSET] = 0x20;
break;
case TCM_UNKNOWN_MODE_PAGE:
/* CURRENT ERROR */
- buffer[offset] = 0x70;
- buffer[offset+SPC_ADD_SENSE_LEN_OFFSET] = 10;
+ buffer[0] = 0x70;
+ buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10;
/* ILLEGAL REQUEST */
- buffer[offset+SPC_SENSE_KEY_OFFSET] = ILLEGAL_REQUEST;
+ buffer[SPC_SENSE_KEY_OFFSET] = ILLEGAL_REQUEST;
/* INVALID FIELD IN CDB */
- buffer[offset+SPC_ASC_KEY_OFFSET] = 0x24;
+ buffer[SPC_ASC_KEY_OFFSET] = 0x24;
break;
case TCM_CHECK_CONDITION_ABORT_CMD:
/* CURRENT ERROR */
- buffer[offset] = 0x70;
- buffer[offset+SPC_ADD_SENSE_LEN_OFFSET] = 10;
+ buffer[0] = 0x70;
+ buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10;
/* ABORTED COMMAND */
- buffer[offset+SPC_SENSE_KEY_OFFSET] = ABORTED_COMMAND;
+ buffer[SPC_SENSE_KEY_OFFSET] = ABORTED_COMMAND;
/* BUS DEVICE RESET FUNCTION OCCURRED */
- buffer[offset+SPC_ASC_KEY_OFFSET] = 0x29;
- buffer[offset+SPC_ASCQ_KEY_OFFSET] = 0x03;
+ buffer[SPC_ASC_KEY_OFFSET] = 0x29;
+ buffer[SPC_ASCQ_KEY_OFFSET] = 0x03;
break;
case TCM_INCORRECT_AMOUNT_OF_DATA:
/* CURRENT ERROR */
- buffer[offset] = 0x70;
- buffer[offset+SPC_ADD_SENSE_LEN_OFFSET] = 10;
+ buffer[0] = 0x70;
+ buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10;
/* ABORTED COMMAND */
- buffer[offset+SPC_SENSE_KEY_OFFSET] = ABORTED_COMMAND;
+ buffer[SPC_SENSE_KEY_OFFSET] = ABORTED_COMMAND;
/* WRITE ERROR */
- buffer[offset+SPC_ASC_KEY_OFFSET] = 0x0c;
+ buffer[SPC_ASC_KEY_OFFSET] = 0x0c;
/* NOT ENOUGH UNSOLICITED DATA */
- buffer[offset+SPC_ASCQ_KEY_OFFSET] = 0x0d;
+ buffer[SPC_ASCQ_KEY_OFFSET] = 0x0d;
break;
case TCM_INVALID_CDB_FIELD:
/* CURRENT ERROR */
- buffer[offset] = 0x70;
- buffer[offset+SPC_ADD_SENSE_LEN_OFFSET] = 10;
+ buffer[0] = 0x70;
+ buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10;
/* ILLEGAL REQUEST */
- buffer[offset+SPC_SENSE_KEY_OFFSET] = ILLEGAL_REQUEST;
+ buffer[SPC_SENSE_KEY_OFFSET] = ILLEGAL_REQUEST;
/* INVALID FIELD IN CDB */
- buffer[offset+SPC_ASC_KEY_OFFSET] = 0x24;
+ buffer[SPC_ASC_KEY_OFFSET] = 0x24;
break;
case TCM_INVALID_PARAMETER_LIST:
/* CURRENT ERROR */
- buffer[offset] = 0x70;
- buffer[offset+SPC_ADD_SENSE_LEN_OFFSET] = 10;
+ buffer[0] = 0x70;
+ buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10;
/* ILLEGAL REQUEST */
- buffer[offset+SPC_SENSE_KEY_OFFSET] = ILLEGAL_REQUEST;
+ buffer[SPC_SENSE_KEY_OFFSET] = ILLEGAL_REQUEST;
/* INVALID FIELD IN PARAMETER LIST */
- buffer[offset+SPC_ASC_KEY_OFFSET] = 0x26;
+ buffer[SPC_ASC_KEY_OFFSET] = 0x26;
break;
case TCM_UNEXPECTED_UNSOLICITED_DATA:
/* CURRENT ERROR */
- buffer[offset] = 0x70;
- buffer[offset+SPC_ADD_SENSE_LEN_OFFSET] = 10;
+ buffer[0] = 0x70;
+ buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10;
/* ABORTED COMMAND */
- buffer[offset+SPC_SENSE_KEY_OFFSET] = ABORTED_COMMAND;
+ buffer[SPC_SENSE_KEY_OFFSET] = ABORTED_COMMAND;
/* WRITE ERROR */
- buffer[offset+SPC_ASC_KEY_OFFSET] = 0x0c;
+ buffer[SPC_ASC_KEY_OFFSET] = 0x0c;
/* UNEXPECTED_UNSOLICITED_DATA */
- buffer[offset+SPC_ASCQ_KEY_OFFSET] = 0x0c;
+ buffer[SPC_ASCQ_KEY_OFFSET] = 0x0c;
break;
case TCM_SERVICE_CRC_ERROR:
/* CURRENT ERROR */
- buffer[offset] = 0x70;
- buffer[offset+SPC_ADD_SENSE_LEN_OFFSET] = 10;
+ buffer[0] = 0x70;
+ buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10;
/* ABORTED COMMAND */
- buffer[offset+SPC_SENSE_KEY_OFFSET] = ABORTED_COMMAND;
+ buffer[SPC_SENSE_KEY_OFFSET] = ABORTED_COMMAND;
/* PROTOCOL SERVICE CRC ERROR */
- buffer[offset+SPC_ASC_KEY_OFFSET] = 0x47;
+ buffer[SPC_ASC_KEY_OFFSET] = 0x47;
/* N/A */
- buffer[offset+SPC_ASCQ_KEY_OFFSET] = 0x05;
+ buffer[SPC_ASCQ_KEY_OFFSET] = 0x05;
break;
case TCM_SNACK_REJECTED:
/* CURRENT ERROR */
- buffer[offset] = 0x70;
- buffer[offset+SPC_ADD_SENSE_LEN_OFFSET] = 10;
+ buffer[0] = 0x70;
+ buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10;
/* ABORTED COMMAND */
- buffer[offset+SPC_SENSE_KEY_OFFSET] = ABORTED_COMMAND;
+ buffer[SPC_SENSE_KEY_OFFSET] = ABORTED_COMMAND;
/* READ ERROR */
- buffer[offset+SPC_ASC_KEY_OFFSET] = 0x11;
+ buffer[SPC_ASC_KEY_OFFSET] = 0x11;
/* FAILED RETRANSMISSION REQUEST */
- buffer[offset+SPC_ASCQ_KEY_OFFSET] = 0x13;
+ buffer[SPC_ASCQ_KEY_OFFSET] = 0x13;
break;
case TCM_WRITE_PROTECTED:
/* CURRENT ERROR */
- buffer[offset] = 0x70;
- buffer[offset+SPC_ADD_SENSE_LEN_OFFSET] = 10;
+ buffer[0] = 0x70;
+ buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10;
/* DATA PROTECT */
- buffer[offset+SPC_SENSE_KEY_OFFSET] = DATA_PROTECT;
+ buffer[SPC_SENSE_KEY_OFFSET] = DATA_PROTECT;
/* WRITE PROTECTED */
- buffer[offset+SPC_ASC_KEY_OFFSET] = 0x27;
+ buffer[SPC_ASC_KEY_OFFSET] = 0x27;
break;
case TCM_ADDRESS_OUT_OF_RANGE:
/* CURRENT ERROR */
- buffer[offset] = 0x70;
- buffer[offset+SPC_ADD_SENSE_LEN_OFFSET] = 10;
+ buffer[0] = 0x70;
+ buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10;
/* ILLEGAL REQUEST */
- buffer[offset+SPC_SENSE_KEY_OFFSET] = ILLEGAL_REQUEST;
+ buffer[SPC_SENSE_KEY_OFFSET] = ILLEGAL_REQUEST;
/* LOGICAL BLOCK ADDRESS OUT OF RANGE */
- buffer[offset+SPC_ASC_KEY_OFFSET] = 0x21;
+ buffer[SPC_ASC_KEY_OFFSET] = 0x21;
break;
case TCM_CHECK_CONDITION_UNIT_ATTENTION:
/* CURRENT ERROR */
- buffer[offset] = 0x70;
- buffer[offset+SPC_ADD_SENSE_LEN_OFFSET] = 10;
+ buffer[0] = 0x70;
+ buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10;
/* UNIT ATTENTION */
- buffer[offset+SPC_SENSE_KEY_OFFSET] = UNIT_ATTENTION;
+ buffer[SPC_SENSE_KEY_OFFSET] = UNIT_ATTENTION;
core_scsi3_ua_for_check_condition(cmd, &asc, &ascq);
- buffer[offset+SPC_ASC_KEY_OFFSET] = asc;
- buffer[offset+SPC_ASCQ_KEY_OFFSET] = ascq;
+ buffer[SPC_ASC_KEY_OFFSET] = asc;
+ buffer[SPC_ASCQ_KEY_OFFSET] = ascq;
break;
case TCM_CHECK_CONDITION_NOT_READY:
/* CURRENT ERROR */
- buffer[offset] = 0x70;
- buffer[offset+SPC_ADD_SENSE_LEN_OFFSET] = 10;
+ buffer[0] = 0x70;
+ buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10;
/* Not Ready */
- buffer[offset+SPC_SENSE_KEY_OFFSET] = NOT_READY;
+ buffer[SPC_SENSE_KEY_OFFSET] = NOT_READY;
transport_get_sense_codes(cmd, &asc, &ascq);
- buffer[offset+SPC_ASC_KEY_OFFSET] = asc;
- buffer[offset+SPC_ASCQ_KEY_OFFSET] = ascq;
+ buffer[SPC_ASC_KEY_OFFSET] = asc;
+ buffer[SPC_ASCQ_KEY_OFFSET] = ascq;
break;
case TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE:
default:
/* CURRENT ERROR */
- buffer[offset] = 0x70;
- buffer[offset+SPC_ADD_SENSE_LEN_OFFSET] = 10;
+ buffer[0] = 0x70;
+ buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10;
/* ILLEGAL REQUEST */
- buffer[offset+SPC_SENSE_KEY_OFFSET] = ILLEGAL_REQUEST;
+ buffer[SPC_SENSE_KEY_OFFSET] = ILLEGAL_REQUEST;
/* LOGICAL UNIT COMMUNICATION FAILURE */
- buffer[offset+SPC_ASC_KEY_OFFSET] = 0x80;
+ buffer[SPC_ASC_KEY_OFFSET] = 0x80;
break;
}
/*
* Automatically padded, this value is encoded in the fabric's
* data_length response PDU containing the SCSI defined sense data.
*/
- cmd->scsi_sense_length = TRANSPORT_SENSE_BUFFER + offset;
+ cmd->scsi_sense_length = TRANSPORT_SENSE_BUFFER;
after_reason:
return cmd->se_tfo->queue_status(cmd);
#include <linux/module.h>
#include <linux/moduleparam.h>
-#include <generated/utsrelease.h>
#include <linux/utsname.h>
#include <linux/init.h>
#include <linux/slab.h>
{
}
-static u16 ft_get_fabric_sense_len(void)
-{
- return 0;
-}
-
-static u16 ft_set_fabric_sense_len(struct se_cmd *se_cmd, u32 sense_len)
-{
- return 0;
-}
-
static u32 ft_tpg_get_inst_index(struct se_portal_group *se_tpg)
{
struct ft_tpg *tpg = se_tpg->se_tpg_fabric_ptr;
.queue_data_in = ft_queue_data_in,
.queue_status = ft_queue_status,
.queue_tm_rsp = ft_queue_tm_resp,
- .get_fabric_sense_len = ft_get_fabric_sense_len,
- .set_fabric_sense_len = ft_set_fabric_sense_len,
/*
* Setup function pointers for generic logic in
* target_core_fabric_configfs.c
#include <linux/module.h>
#include <linux/moduleparam.h>
-#include <generated/utsrelease.h>
#include <linux/utsname.h>
#include <linux/init.h>
#include <linux/slab.h>
*/
void ft_invl_hw_context(struct ft_cmd *cmd)
{
- struct fc_seq *seq = cmd->seq;
+ struct fc_seq *seq;
struct fc_exch *ep = NULL;
struct fc_lport *lport = NULL;
BUG_ON(!cmd);
+ seq = cmd->seq;
/* Cleanup the DDP context in HW if DDP was setup */
if (cmd->was_ddp_setup && seq) {
#include <linux/module.h>
#include <linux/moduleparam.h>
-#include <generated/utsrelease.h>
#include <linux/utsname.h>
#include <linux/init.h>
#include <linux/slab.h>
return 0;
}
-static u16 usbg_set_fabric_sense_len(struct se_cmd *se_cmd, u32 sense_length)
-{
- return 0;
-}
-
-static u16 usbg_get_fabric_sense_len(void)
-{
- return 0;
-}
-
static const char *usbg_check_wwn(const char *name)
{
const char *n;
ret = tcm_usbg_drop_nexus(tpg);
return (!ret) ? count : ret;
}
- if (strlen(page) > USBG_NAMELEN) {
+ if (strlen(page) >= USBG_NAMELEN) {
pr_err("Emulated NAA Sas Address: %s, exceeds"
" max: %d\n", page, USBG_NAMELEN);
return -EINVAL;
.queue_data_in = usbg_send_read_response,
.queue_status = usbg_send_status_response,
.queue_tm_rsp = usbg_queue_tm_rsp,
- .get_fabric_sense_len = usbg_get_fabric_sense_len,
- .set_fabric_sense_len = usbg_set_fabric_sense_len,
.check_stop_free = usbg_check_stop_free,
.fabric_make_wwn = usbg_make_tport,
static struct usb_interface_descriptor bot_intf_desc = {
.bLength = sizeof(bot_intf_desc),
.bDescriptorType = USB_DT_INTERFACE,
- .bAlternateSetting = 0,
.bNumEndpoints = 2,
.bAlternateSetting = USB_G_ALT_INT_BBB,
.bInterfaceClass = USB_CLASS_MASS_STORAGE,
return 0;
}
-static u16 tcm_vhost_set_fabric_sense_len(struct se_cmd *se_cmd,
- u32 sense_length)
-{
- return 0;
-}
-
-static u16 tcm_vhost_get_fabric_sense_len(void)
-{
- return 0;
-}
-
static void vhost_scsi_free_cmd(struct tcm_vhost_cmd *tv_cmd)
{
struct se_cmd *se_cmd = &tv_cmd->tvc_se_cmd;
{
struct tcm_vhost_cmd *tv_cmd;
struct tcm_vhost_nexus *tv_nexus;
- struct se_portal_group *se_tpg = &tv_tpg->se_tpg;
struct se_session *se_sess;
- struct se_cmd *se_cmd;
- int sam_task_attr;
tv_nexus = tv_tpg->tpg_nexus;
if (!tv_nexus) {
}
INIT_LIST_HEAD(&tv_cmd->tvc_completion_list);
tv_cmd->tvc_tag = v_req->tag;
+ tv_cmd->tvc_task_attr = v_req->task_attr;
+ tv_cmd->tvc_exp_data_len = exp_data_len;
+ tv_cmd->tvc_data_direction = data_direction;
+ tv_cmd->tvc_nexus = tv_nexus;
- se_cmd = &tv_cmd->tvc_se_cmd;
- /*
- * Locate the SAM Task Attr from virtio_scsi_cmd_req
- */
- sam_task_attr = v_req->task_attr;
- /*
- * Initialize struct se_cmd descriptor from TCM infrastructure
- */
- transport_init_se_cmd(se_cmd, se_tpg->se_tpg_tfo, se_sess, exp_data_len,
- data_direction, sam_task_attr,
- &tv_cmd->tvc_sense_buf[0]);
-
-#if 0 /* FIXME: vhost_scsi_allocate_cmd() BIDI operation */
- if (bidi)
- se_cmd->se_cmd_flags |= SCF_BIDI;
-#endif
return tv_cmd;
}
{
struct tcm_vhost_cmd *tv_cmd =
container_of(work, struct tcm_vhost_cmd, work);
+ struct tcm_vhost_nexus *tv_nexus;
struct se_cmd *se_cmd = &tv_cmd->tvc_se_cmd;
struct scatterlist *sg_ptr, *sg_bidi_ptr = NULL;
int rc, sg_no_bidi = 0;
- /*
- * Locate the struct se_lun pointer based on v_req->lun, and
- * attach it to struct se_cmd
- */
- rc = transport_lookup_cmd_lun(&tv_cmd->tvc_se_cmd, tv_cmd->tvc_lun);
- if (rc < 0) {
- pr_err("Failed to look up lun: %d\n", tv_cmd->tvc_lun);
- transport_send_check_condition_and_sense(&tv_cmd->tvc_se_cmd,
- tv_cmd->tvc_se_cmd.scsi_sense_reason, 0);
- transport_generic_free_cmd(se_cmd, 0);
- return;
- }
-
- rc = target_setup_cmd_from_cdb(se_cmd, tv_cmd->tvc_cdb);
- if (rc == -ENOMEM) {
- transport_send_check_condition_and_sense(se_cmd,
- TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE, 0);
- transport_generic_free_cmd(se_cmd, 0);
- return;
- } else if (rc < 0) {
- if (se_cmd->se_cmd_flags & SCF_SCSI_RESERVATION_CONFLICT)
- tcm_vhost_queue_status(se_cmd);
- else
- transport_send_check_condition_and_sense(se_cmd,
- se_cmd->scsi_sense_reason, 0);
- transport_generic_free_cmd(se_cmd, 0);
- return;
- }
if (tv_cmd->tvc_sgl_count) {
sg_ptr = tv_cmd->tvc_sgl;
} else {
sg_ptr = NULL;
}
-
- rc = transport_generic_map_mem_to_cmd(se_cmd, sg_ptr,
- tv_cmd->tvc_sgl_count, sg_bidi_ptr,
- sg_no_bidi);
+ tv_nexus = tv_cmd->tvc_nexus;
+
+ rc = target_submit_cmd_map_sgls(se_cmd, tv_nexus->tvn_se_sess,
+ tv_cmd->tvc_cdb, &tv_cmd->tvc_sense_buf[0],
+ tv_cmd->tvc_lun, tv_cmd->tvc_exp_data_len,
+ tv_cmd->tvc_task_attr, tv_cmd->tvc_data_direction,
+ 0, sg_ptr, tv_cmd->tvc_sgl_count,
+ sg_bidi_ptr, sg_no_bidi);
if (rc < 0) {
transport_send_check_condition_and_sense(se_cmd,
- se_cmd->scsi_sense_reason, 0);
+ TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE, 0);
transport_generic_free_cmd(se_cmd, 0);
- return;
}
- transport_handle_cdb_direct(se_cmd);
}
static void vhost_scsi_handle_vq(struct vhost_scsi *vs)
.queue_data_in = tcm_vhost_queue_data_in,
.queue_status = tcm_vhost_queue_status,
.queue_tm_rsp = tcm_vhost_queue_tm_rsp,
- .get_fabric_sense_len = tcm_vhost_get_fabric_sense_len,
- .set_fabric_sense_len = tcm_vhost_set_fabric_sense_len,
/*
* Setup callers for generic logic in target_core_fabric_configfs.c
*/
struct tcm_vhost_cmd {
/* Descriptor from vhost_get_vq_desc() for virt_queue segment */
int tvc_vq_desc;
+ /* virtio-scsi initiator task attribute */
+ int tvc_task_attr;
+ /* virtio-scsi initiator data direction */
+ enum dma_data_direction tvc_data_direction;
+ /* Expected data transfer length from virtio-scsi header */
+ u32 tvc_exp_data_len;
/* The Tag from include/linux/virtio_scsi.h:struct virtio_scsi_cmd_req */
u64 tvc_tag;
/* The number of scatterlists associated with this cmd */
struct virtio_scsi_cmd_resp __user *tvc_resp;
/* Pointer to vhost_scsi for our device */
struct vhost_scsi *tvc_vhost;
+ /* Pointer to vhost nexus memory */
+ struct tcm_vhost_nexus *tvc_nexus;
/* The TCM I/O descriptor that is accessed via container_of() */
struct se_cmd tvc_se_cmd;
/* work item used for cmwq dispatch to tcm_vhost_submission_work() */
pb->exit = data->exit;
pb->dev = &pdev->dev;
- pb->pwm = pwm_get(&pdev->dev, NULL);
+ pb->pwm = devm_pwm_get(&pdev->dev, NULL);
if (IS_ERR(pb->pwm)) {
dev_err(&pdev->dev, "unable to request PWM, trying legacy API\n");
if (IS_ERR(bl)) {
dev_err(&pdev->dev, "failed to register backlight\n");
ret = PTR_ERR(bl);
- goto err_bl;
+ goto err_alloc;
}
bl->props.brightness = data->dft_brightness;
platform_set_drvdata(pdev, bl);
return 0;
-err_bl:
- pwm_put(pb->pwm);
err_alloc:
if (data->exit)
data->exit(&pdev->dev);
backlight_device_unregister(bl);
pwm_config(pb->pwm, 0, pb->period);
pwm_disable(pb->pwm);
- pwm_put(pb->pwm);
if (pb->exit)
pb->exit(&pdev->dev);
return 0;
*/
#include <linux/types.h>
-#include <linux/utsname.h>
#include <linux/kernel.h>
#include <linux/ktime.h>
#include <linux/slab.h>
#include <asm/unaligned.h>
+#include "netns.h"
+
#define NLMDBG_FACILITY NLMDBG_MONITOR
#define NSM_PROGRAM 100024
#define NSM_VERSION 1
u32 proc;
char *mon_name;
+ char *nodename;
};
struct nsm_res {
};
struct rpc_create_args args = {
.net = net,
- .protocol = XPRT_TRANSPORT_UDP,
+ .protocol = XPRT_TRANSPORT_TCP,
.address = (struct sockaddr *)&sin,
.addrsize = sizeof(sin),
.servername = "rpc.statd",
return rpc_create(&args);
}
-static int nsm_mon_unmon(struct nsm_handle *nsm, u32 proc, struct nsm_res *res,
- struct net *net)
+static struct rpc_clnt *nsm_client_get(struct net *net)
{
+ static DEFINE_MUTEX(nsm_create_mutex);
struct rpc_clnt *clnt;
+ struct lockd_net *ln = net_generic(net, lockd_net_id);
+
+ spin_lock(&ln->nsm_clnt_lock);
+ if (ln->nsm_users) {
+ ln->nsm_users++;
+ clnt = ln->nsm_clnt;
+ spin_unlock(&ln->nsm_clnt_lock);
+ goto out;
+ }
+ spin_unlock(&ln->nsm_clnt_lock);
+
+ mutex_lock(&nsm_create_mutex);
+ clnt = nsm_create(net);
+ if (!IS_ERR(clnt)) {
+ ln->nsm_clnt = clnt;
+ smp_wmb();
+ ln->nsm_users = 1;
+ }
+ mutex_unlock(&nsm_create_mutex);
+out:
+ return clnt;
+}
+
+static void nsm_client_put(struct net *net)
+{
+ struct lockd_net *ln = net_generic(net, lockd_net_id);
+ struct rpc_clnt *clnt = ln->nsm_clnt;
+ int shutdown = 0;
+
+ spin_lock(&ln->nsm_clnt_lock);
+ if (ln->nsm_users) {
+ if (--ln->nsm_users)
+ ln->nsm_clnt = NULL;
+ shutdown = !ln->nsm_users;
+ }
+ spin_unlock(&ln->nsm_clnt_lock);
+
+ if (shutdown)
+ rpc_shutdown_client(clnt);
+}
+
+static int nsm_mon_unmon(struct nsm_handle *nsm, u32 proc, struct nsm_res *res,
+ struct rpc_clnt *clnt)
+{
int status;
struct nsm_args args = {
.priv = &nsm->sm_priv,
.vers = 3,
.proc = NLMPROC_NSM_NOTIFY,
.mon_name = nsm->sm_mon_name,
+ .nodename = clnt->cl_nodename,
};
struct rpc_message msg = {
.rpc_argp = &args,
.rpc_resp = res,
};
- clnt = nsm_create(net);
- if (IS_ERR(clnt)) {
- status = PTR_ERR(clnt);
- dprintk("lockd: failed to create NSM upcall transport, "
- "status=%d\n", status);
- goto out;
- }
+ BUG_ON(clnt == NULL);
memset(res, 0, sizeof(*res));
msg.rpc_proc = &clnt->cl_procinfo[proc];
- status = rpc_call_sync(clnt, &msg, 0);
+ status = rpc_call_sync(clnt, &msg, RPC_TASK_SOFTCONN);
if (status < 0)
dprintk("lockd: NSM upcall RPC failed, status=%d\n",
status);
else
status = 0;
- rpc_shutdown_client(clnt);
- out:
return status;
}
struct nsm_handle *nsm = host->h_nsmhandle;
struct nsm_res res;
int status;
+ struct rpc_clnt *clnt;
dprintk("lockd: nsm_monitor(%s)\n", nsm->sm_name);
*/
nsm->sm_mon_name = nsm_use_hostnames ? nsm->sm_name : nsm->sm_addrbuf;
- status = nsm_mon_unmon(nsm, NSMPROC_MON, &res, host->net);
+ clnt = nsm_client_get(host->net);
+ if (IS_ERR(clnt)) {
+ status = PTR_ERR(clnt);
+ dprintk("lockd: failed to create NSM upcall transport, "
+ "status=%d, net=%p\n", status, host->net);
+ return status;
+ }
+
+ status = nsm_mon_unmon(nsm, NSMPROC_MON, &res, clnt);
if (unlikely(res.status != 0))
status = -EIO;
if (unlikely(status < 0)) {
if (atomic_read(&nsm->sm_count) == 1
&& nsm->sm_monitored && !nsm->sm_sticky) {
+ struct lockd_net *ln = net_generic(host->net, lockd_net_id);
+
dprintk("lockd: nsm_unmonitor(%s)\n", nsm->sm_name);
- status = nsm_mon_unmon(nsm, NSMPROC_UNMON, &res, host->net);
+ status = nsm_mon_unmon(nsm, NSMPROC_UNMON, &res, ln->nsm_clnt);
if (res.status != 0)
status = -EIO;
if (status < 0)
nsm->sm_name);
else
nsm->sm_monitored = 0;
+
+ nsm_client_put(host->net);
}
}
{
__be32 *p;
- encode_nsm_string(xdr, utsname()->nodename);
+ encode_nsm_string(xdr, argp->nodename);
p = xdr_reserve_space(xdr, 4 + 4 + 4);
*p++ = cpu_to_be32(argp->prog);
*p++ = cpu_to_be32(argp->vers);
struct delayed_work grace_period_end;
struct lock_manager lockd_manager;
struct list_head grace_list;
+
+ spinlock_t nsm_clnt_lock;
+ unsigned int nsm_users;
+ struct rpc_clnt *nsm_clnt;
};
extern int lockd_net_id;
INIT_DELAYED_WORK(&ln->grace_period_end, grace_ender);
INIT_LIST_HEAD(&ln->grace_list);
+ spin_lock_init(&ln->nsm_clnt_lock);
return 0;
}
This option enables swapon to work on files located on NFS mounts.
config NFS_V4_1
- bool "NFS client support for NFSv4.1 (EXPERIMENTAL)"
- depends on NFS_V4 && EXPERIMENTAL
+ bool "NFS client support for NFSv4.1"
+ depends on NFS_V4
select SUNRPC_BACKCHANNEL
help
This option enables support for minor version 1 of the NFSv4 protocol
#include <linux/bio.h> /* struct bio */
#include <linux/buffer_head.h> /* various write calls */
#include <linux/prefetch.h>
+#include <linux/pagevec.h>
#include "../pnfs.h"
#include "../internal.h"
return bio;
}
-static struct bio *bl_add_page_to_bio(struct bio *bio, int npg, int rw,
+static struct bio *do_add_page_to_bio(struct bio *bio, int npg, int rw,
sector_t isect, struct page *page,
struct pnfs_block_extent *be,
void (*end_io)(struct bio *, int err),
- struct parallel_io *par)
+ struct parallel_io *par,
+ unsigned int offset, int len)
{
+ isect = isect + (offset >> SECTOR_SHIFT);
+ dprintk("%s: npg %d rw %d isect %llu offset %u len %d\n", __func__,
+ npg, rw, (unsigned long long)isect, offset, len);
retry:
if (!bio) {
bio = bl_alloc_init_bio(npg, isect, be, end_io, par);
if (!bio)
return ERR_PTR(-ENOMEM);
}
- if (bio_add_page(bio, page, PAGE_CACHE_SIZE, 0) < PAGE_CACHE_SIZE) {
+ if (bio_add_page(bio, page, len, offset) < len) {
bio = bl_submit_bio(rw, bio);
goto retry;
}
return bio;
}
+static struct bio *bl_add_page_to_bio(struct bio *bio, int npg, int rw,
+ sector_t isect, struct page *page,
+ struct pnfs_block_extent *be,
+ void (*end_io)(struct bio *, int err),
+ struct parallel_io *par)
+{
+ return do_add_page_to_bio(bio, npg, rw, isect, page, be,
+ end_io, par, 0, PAGE_CACHE_SIZE);
+}
+
/* This is basically copied from mpage_end_io_read */
static void bl_end_io_read(struct bio *bio, int err)
{
schedule_work(&rdata->task.u.tk_work);
}
-static bool
-bl_check_alignment(u64 offset, u32 len, unsigned long blkmask)
-{
- if ((offset & blkmask) || (len & blkmask))
- return false;
- return true;
-}
-
static enum pnfs_try_status
bl_read_pagelist(struct nfs_read_data *rdata)
{
sector_t isect, extent_length = 0;
struct parallel_io *par;
loff_t f_offset = rdata->args.offset;
+ size_t bytes_left = rdata->args.count;
+ unsigned int pg_offset, pg_len;
struct page **pages = rdata->args.pages;
int pg_index = rdata->args.pgbase >> PAGE_CACHE_SHIFT;
+ const bool is_dio = (header->dreq != NULL);
dprintk("%s enter nr_pages %u offset %lld count %u\n", __func__,
rdata->pages.npages, f_offset, (unsigned int)rdata->args.count);
- if (!bl_check_alignment(f_offset, rdata->args.count, PAGE_CACHE_MASK))
- goto use_mds;
-
par = alloc_parallel(rdata);
if (!par)
goto use_mds;
extent_length = min(extent_length, cow_length);
}
}
+
+ if (is_dio) {
+ pg_offset = f_offset & ~PAGE_CACHE_MASK;
+ if (pg_offset + bytes_left > PAGE_CACHE_SIZE)
+ pg_len = PAGE_CACHE_SIZE - pg_offset;
+ else
+ pg_len = bytes_left;
+
+ f_offset += pg_len;
+ bytes_left -= pg_len;
+ isect += (pg_offset >> SECTOR_SHIFT);
+ } else {
+ pg_offset = 0;
+ pg_len = PAGE_CACHE_SIZE;
+ }
+
hole = is_hole(be, isect);
if (hole && !cow_read) {
bio = bl_submit_bio(READ, bio);
/* Fill hole w/ zeroes w/o accessing device */
dprintk("%s Zeroing page for hole\n", __func__);
- zero_user_segment(pages[i], 0, PAGE_CACHE_SIZE);
+ zero_user_segment(pages[i], pg_offset, pg_len);
print_page(pages[i]);
SetPageUptodate(pages[i]);
} else {
struct pnfs_block_extent *be_read;
be_read = (hole && cow_read) ? cow_read : be;
- bio = bl_add_page_to_bio(bio, rdata->pages.npages - i,
+ bio = do_add_page_to_bio(bio, rdata->pages.npages - i,
READ,
isect, pages[i], be_read,
- bl_end_io_read, par);
+ bl_end_io_read, par,
+ pg_offset, pg_len);
if (IS_ERR(bio)) {
header->pnfs_error = PTR_ERR(bio);
bio = NULL;
goto out;
}
}
- isect += PAGE_CACHE_SECTORS;
+ isect += (pg_len >> SECTOR_SHIFT);
extent_length -= PAGE_CACHE_SECTORS;
}
if ((isect << SECTOR_SHIFT) >= header->inode->i_size) {
rdata->res.eof = 1;
- rdata->res.count = header->inode->i_size - f_offset;
+ rdata->res.count = header->inode->i_size - rdata->args.offset;
} else {
- rdata->res.count = (isect << SECTOR_SHIFT) - f_offset;
+ rdata->res.count = (isect << SECTOR_SHIFT) - rdata->args.offset;
}
out:
bl_put_extent(be);
return;
}
+static void
+bl_read_single_end_io(struct bio *bio, int error)
+{
+ struct bio_vec *bvec = bio->bi_io_vec + bio->bi_vcnt - 1;
+ struct page *page = bvec->bv_page;
+
+ /* Only one page in bvec */
+ unlock_page(page);
+}
+
+static int
+bl_do_readpage_sync(struct page *page, struct pnfs_block_extent *be,
+ unsigned int offset, unsigned int len)
+{
+ struct bio *bio;
+ struct page *shadow_page;
+ sector_t isect;
+ char *kaddr, *kshadow_addr;
+ int ret = 0;
+
+ dprintk("%s: offset %u len %u\n", __func__, offset, len);
+
+ shadow_page = alloc_page(GFP_NOFS | __GFP_HIGHMEM);
+ if (shadow_page == NULL)
+ return -ENOMEM;
+
+ bio = bio_alloc(GFP_NOIO, 1);
+ if (bio == NULL)
+ return -ENOMEM;
+
+ isect = (page->index << PAGE_CACHE_SECTOR_SHIFT) +
+ (offset / SECTOR_SIZE);
+
+ bio->bi_sector = isect - be->be_f_offset + be->be_v_offset;
+ bio->bi_bdev = be->be_mdev;
+ bio->bi_end_io = bl_read_single_end_io;
+
+ lock_page(shadow_page);
+ if (bio_add_page(bio, shadow_page,
+ SECTOR_SIZE, round_down(offset, SECTOR_SIZE)) == 0) {
+ unlock_page(shadow_page);
+ bio_put(bio);
+ return -EIO;
+ }
+
+ submit_bio(READ, bio);
+ wait_on_page_locked(shadow_page);
+ if (unlikely(!test_bit(BIO_UPTODATE, &bio->bi_flags))) {
+ ret = -EIO;
+ } else {
+ kaddr = kmap_atomic(page);
+ kshadow_addr = kmap_atomic(shadow_page);
+ memcpy(kaddr + offset, kshadow_addr + offset, len);
+ kunmap_atomic(kshadow_addr);
+ kunmap_atomic(kaddr);
+ }
+ __free_page(shadow_page);
+ bio_put(bio);
+
+ return ret;
+}
+
+static int
+bl_read_partial_page_sync(struct page *page, struct pnfs_block_extent *be,
+ unsigned int dirty_offset, unsigned int dirty_len,
+ bool full_page)
+{
+ int ret = 0;
+ unsigned int start, end;
+
+ if (full_page) {
+ start = 0;
+ end = PAGE_CACHE_SIZE;
+ } else {
+ start = round_down(dirty_offset, SECTOR_SIZE);
+ end = round_up(dirty_offset + dirty_len, SECTOR_SIZE);
+ }
+
+ dprintk("%s: offset %u len %d\n", __func__, dirty_offset, dirty_len);
+ if (!be) {
+ zero_user_segments(page, start, dirty_offset,
+ dirty_offset + dirty_len, end);
+ if (start == 0 && end == PAGE_CACHE_SIZE &&
+ trylock_page(page)) {
+ SetPageUptodate(page);
+ unlock_page(page);
+ }
+ return ret;
+ }
+
+ if (start != dirty_offset)
+ ret = bl_do_readpage_sync(page, be, start, dirty_offset - start);
+
+ if (!ret && (dirty_offset + dirty_len < end))
+ ret = bl_do_readpage_sync(page, be, dirty_offset + dirty_len,
+ end - dirty_offset - dirty_len);
+
+ return ret;
+}
+
/* Given an unmapped page, zero it or read in page for COW, page is locked
* by caller.
*/
SetPageUptodate(page);
cleanup:
- bl_put_extent(cow_read);
if (bh)
free_buffer_head(bh);
if (ret) {
struct parallel_io *par = NULL;
loff_t offset = wdata->args.offset;
size_t count = wdata->args.count;
+ unsigned int pg_offset, pg_len, saved_len;
struct page **pages = wdata->args.pages;
struct page *page;
pgoff_t index;
NFS_SERVER(header->inode)->pnfs_blksize >> PAGE_CACHE_SHIFT;
dprintk("%s enter, %Zu@%lld\n", __func__, count, offset);
- /* Check for alignment first */
- if (!bl_check_alignment(offset, count, PAGE_CACHE_MASK))
- goto out_mds;
+ if (header->dreq != NULL &&
+ (!IS_ALIGNED(offset, NFS_SERVER(header->inode)->pnfs_blksize) ||
+ !IS_ALIGNED(count, NFS_SERVER(header->inode)->pnfs_blksize))) {
+ dprintk("pnfsblock nonblock aligned DIO writes. Resend MDS\n");
+ goto out_mds;
+ }
/* At this point, wdata->pages is a (sequential) list of nfs_pages.
* We want to write each, and if there is an error set pnfs_error
* to have it redone using nfs.
if (!extent_length) {
/* We've used up the previous extent */
bl_put_extent(be);
+ bl_put_extent(cow_read);
bio = bl_submit_bio(WRITE, bio);
/* Get the next one */
be = bl_find_get_extent(BLK_LSEG2EXT(header->lseg),
- isect, NULL);
+ isect, &cow_read);
if (!be || !is_writable(be, isect)) {
header->pnfs_error = -EINVAL;
goto out;
extent_length = be->be_length -
(isect - be->be_f_offset);
}
- if (be->be_state == PNFS_BLOCK_INVALID_DATA) {
+
+ dprintk("%s offset %lld count %Zu\n", __func__, offset, count);
+ pg_offset = offset & ~PAGE_CACHE_MASK;
+ if (pg_offset + count > PAGE_CACHE_SIZE)
+ pg_len = PAGE_CACHE_SIZE - pg_offset;
+ else
+ pg_len = count;
+
+ saved_len = pg_len;
+ if (be->be_state == PNFS_BLOCK_INVALID_DATA &&
+ !bl_is_sector_init(be->be_inval, isect)) {
+ ret = bl_read_partial_page_sync(pages[i], cow_read,
+ pg_offset, pg_len, true);
+ if (ret) {
+ dprintk("%s bl_read_partial_page_sync fail %d\n",
+ __func__, ret);
+ header->pnfs_error = ret;
+ goto out;
+ }
+
ret = bl_mark_sectors_init(be->be_inval, isect,
PAGE_CACHE_SECTORS);
if (unlikely(ret)) {
header->pnfs_error = ret;
goto out;
}
+
+ /* Expand to full page write */
+ pg_offset = 0;
+ pg_len = PAGE_CACHE_SIZE;
+ } else if ((pg_offset & (SECTOR_SIZE - 1)) ||
+ (pg_len & (SECTOR_SIZE - 1))){
+ /* ahh, nasty case. We have to do sync full sector
+ * read-modify-write cycles.
+ */
+ unsigned int saved_offset = pg_offset;
+ ret = bl_read_partial_page_sync(pages[i], be, pg_offset,
+ pg_len, false);
+ pg_offset = round_down(pg_offset, SECTOR_SIZE);
+ pg_len = round_up(saved_offset + pg_len, SECTOR_SIZE)
+ - pg_offset;
}
- bio = bl_add_page_to_bio(bio, wdata->pages.npages - i, WRITE,
+
+
+ bio = do_add_page_to_bio(bio, wdata->pages.npages - i, WRITE,
isect, pages[i], be,
- bl_end_io_write, par);
+ bl_end_io_write, par,
+ pg_offset, pg_len);
if (IS_ERR(bio)) {
header->pnfs_error = PTR_ERR(bio);
bio = NULL;
goto out;
}
+ offset += saved_len;
+ count -= saved_len;
isect += PAGE_CACHE_SECTORS;
last_isect = isect;
extent_length -= PAGE_CACHE_SECTORS;
}
write_done:
- wdata->res.count = (last_isect << SECTOR_SHIFT) - (offset);
- if (count < wdata->res.count) {
- wdata->res.count = count;
- }
+ wdata->res.count = wdata->args.count;
out:
bl_put_extent(be);
+ bl_put_extent(cow_read);
bl_submit_bio(WRITE, bio);
put_parallel(par);
return PNFS_ATTEMPTED;
out_mds:
bl_put_extent(be);
+ bl_put_extent(cow_read);
kfree(par);
return PNFS_NOT_ATTEMPTED;
}
}
}
-/* This is mostly copied from the filelayout's get_device_info function.
+/* This is mostly copied from the filelayout_get_device_info function.
* It seems much of this should be at the generic pnfs level.
*/
static struct pnfs_block_dev *
return 0;
}
+static bool
+is_aligned_req(struct nfs_page *req, unsigned int alignment)
+{
+ return IS_ALIGNED(req->wb_offset, alignment) &&
+ IS_ALIGNED(req->wb_bytes, alignment);
+}
+
static void
bl_pg_init_read(struct nfs_pageio_descriptor *pgio, struct nfs_page *req)
{
- if (!bl_check_alignment(req->wb_offset, req->wb_bytes, PAGE_CACHE_MASK))
+ if (pgio->pg_dreq != NULL &&
+ !is_aligned_req(req, SECTOR_SIZE))
nfs_pageio_reset_read_mds(pgio);
else
pnfs_generic_pg_init_read(pgio, req);
}
+static bool
+bl_pg_test_read(struct nfs_pageio_descriptor *pgio, struct nfs_page *prev,
+ struct nfs_page *req)
+{
+ if (pgio->pg_dreq != NULL &&
+ !is_aligned_req(req, SECTOR_SIZE))
+ return false;
+
+ return pnfs_generic_pg_test(pgio, prev, req);
+}
+
+/*
+ * Return the number of contiguous bytes for a given inode
+ * starting at page frame idx.
+ */
+static u64 pnfs_num_cont_bytes(struct inode *inode, pgoff_t idx)
+{
+ struct address_space *mapping = inode->i_mapping;
+ pgoff_t end;
+
+ /* Optimize common case that writes from 0 to end of file */
+ end = DIV_ROUND_UP(i_size_read(inode), PAGE_CACHE_SIZE);
+ if (end != NFS_I(inode)->npages) {
+ rcu_read_lock();
+ end = radix_tree_next_hole(&mapping->page_tree, idx + 1, ULONG_MAX);
+ rcu_read_unlock();
+ }
+
+ if (!end)
+ return i_size_read(inode) - (idx << PAGE_CACHE_SHIFT);
+ else
+ return (end - idx) << PAGE_CACHE_SHIFT;
+}
+
static void
bl_pg_init_write(struct nfs_pageio_descriptor *pgio, struct nfs_page *req)
{
- if (!bl_check_alignment(req->wb_offset, req->wb_bytes, PAGE_CACHE_MASK))
+ if (pgio->pg_dreq != NULL &&
+ !is_aligned_req(req, PAGE_CACHE_SIZE)) {
nfs_pageio_reset_write_mds(pgio);
- else
- pnfs_generic_pg_init_write(pgio, req);
+ } else {
+ u64 wb_size;
+ if (pgio->pg_dreq == NULL)
+ wb_size = pnfs_num_cont_bytes(pgio->pg_inode,
+ req->wb_index);
+ else
+ wb_size = nfs_dreq_bytes_left(pgio->pg_dreq);
+
+ pnfs_generic_pg_init_write(pgio, req, wb_size);
+ }
+}
+
+static bool
+bl_pg_test_write(struct nfs_pageio_descriptor *pgio, struct nfs_page *prev,
+ struct nfs_page *req)
+{
+ if (pgio->pg_dreq != NULL &&
+ !is_aligned_req(req, PAGE_CACHE_SIZE))
+ return false;
+
+ return pnfs_generic_pg_test(pgio, prev, req);
}
static const struct nfs_pageio_ops bl_pg_read_ops = {
.pg_init = bl_pg_init_read,
- .pg_test = pnfs_generic_pg_test,
+ .pg_test = bl_pg_test_read,
.pg_doio = pnfs_generic_pg_readpages,
};
static const struct nfs_pageio_ops bl_pg_write_ops = {
.pg_init = bl_pg_init_write,
- .pg_test = pnfs_generic_pg_test,
+ .pg_test = bl_pg_test_write,
.pg_doio = pnfs_generic_pg_writepages,
};
#define PAGE_CACHE_SECTORS (PAGE_CACHE_SIZE >> SECTOR_SHIFT)
#define PAGE_CACHE_SECTOR_SHIFT (PAGE_CACHE_SHIFT - SECTOR_SHIFT)
+#define SECTOR_SIZE (1 << SECTOR_SHIFT)
struct block_mount_id {
spinlock_t bm_lock; /* protects list */
/* blocklayoutdev.c */
ssize_t bl_pipe_downcall(struct file *, const char __user *, size_t);
void bl_pipe_destroy_msg(struct rpc_pipe_msg *);
-struct block_device *nfs4_blkdev_get(dev_t dev);
int nfs4_blkdev_put(struct block_device *bdev);
struct pnfs_block_dev *nfs4_blk_decode_device(struct nfs_server *server,
struct pnfs_device *dev);
return 0;
}
-/* Open a block_device by device number. */
-struct block_device *nfs4_blkdev_get(dev_t dev)
-{
- struct block_device *bd;
-
- dprintk("%s enter\n", __func__);
- bd = blkdev_get_by_dev(dev, FMODE_READ, NULL);
- if (IS_ERR(bd))
- goto fail;
- return bd;
-fail:
- dprintk("%s failed to open device : %ld\n",
- __func__, PTR_ERR(bd));
- return NULL;
-}
-
/*
* Release the block device
*/
goto out;
}
- bd = nfs4_blkdev_get(MKDEV(reply->major, reply->minor));
+ bd = blkdev_get_by_dev(MKDEV(reply->major, reply->minor),
+ FMODE_READ, NULL);
if (IS_ERR(bd)) {
- rc = PTR_ERR(bd);
- dprintk("%s failed to open device : %d\n", __func__, rc);
- rv = ERR_PTR(rc);
+ dprintk("%s failed to open device : %ld\n", __func__,
+ PTR_ERR(bd));
+ rv = ERR_CAST(bd);
goto out;
}
p = xdr_encode_hyper(p, lce->bse_length << SECTOR_SHIFT);
p = xdr_encode_hyper(p, 0LL);
*p++ = cpu_to_be32(PNFS_BLOCK_READWRITE_DATA);
- list_del(&lce->bse_node);
- list_add_tail(&lce->bse_node, &bl->bl_committing);
+ list_move_tail(&lce->bse_node, &bl->bl_committing);
bl->bl_count--;
count++;
}
#include <linux/sunrpc/svc.h>
#include <linux/sunrpc/svcsock.h>
#include <linux/nfs_fs.h>
+#include <linux/errno.h>
#include <linux/mutex.h>
#include <linux/freezer.h>
#include <linux/kthread.h>
#include "nfs4_fs.h"
#include "callback.h"
#include "internal.h"
+#include "netns.h"
#define NFSDBG_FACILITY NFSDBG_CALLBACK
static DEFINE_MUTEX(nfs_callback_mutex);
static struct svc_program nfs4_callback_program;
-unsigned short nfs_callback_tcpport6;
+static int nfs4_callback_up_net(struct svc_serv *serv, struct net *net)
+{
+ int ret;
+ struct nfs_net *nn = net_generic(net, nfs_net_id);
+
+ ret = svc_create_xprt(serv, "tcp", net, PF_INET,
+ nfs_callback_set_tcpport, SVC_SOCK_ANONYMOUS);
+ if (ret <= 0)
+ goto out_err;
+ nn->nfs_callback_tcpport = ret;
+ dprintk("NFS: Callback listener port = %u (af %u, net %p)\n",
+ nn->nfs_callback_tcpport, PF_INET, net);
+
+ ret = svc_create_xprt(serv, "tcp", net, PF_INET6,
+ nfs_callback_set_tcpport, SVC_SOCK_ANONYMOUS);
+ if (ret > 0) {
+ nn->nfs_callback_tcpport6 = ret;
+ dprintk("NFS: Callback listener port = %u (af %u, net %p)\n",
+ nn->nfs_callback_tcpport6, PF_INET6, net);
+ } else if (ret != -EAFNOSUPPORT)
+ goto out_err;
+ return 0;
+
+out_err:
+ return (ret) ? ret : -ENOMEM;
+}
/*
* This is the NFSv4 callback kernel thread.
* Prepare to bring up the NFSv4 callback service
*/
static struct svc_rqst *
-nfs4_callback_up(struct svc_serv *serv, struct rpc_xprt *xprt)
+nfs4_callback_up(struct svc_serv *serv)
{
- int ret;
-
- ret = svc_create_xprt(serv, "tcp", &init_net, PF_INET,
- nfs_callback_set_tcpport, SVC_SOCK_ANONYMOUS);
- if (ret <= 0)
- goto out_err;
- nfs_callback_tcpport = ret;
- dprintk("NFS: Callback listener port = %u (af %u)\n",
- nfs_callback_tcpport, PF_INET);
-
- ret = svc_create_xprt(serv, "tcp", &init_net, PF_INET6,
- nfs_callback_set_tcpport, SVC_SOCK_ANONYMOUS);
- if (ret > 0) {
- nfs_callback_tcpport6 = ret;
- dprintk("NFS: Callback listener port = %u (af %u)\n",
- nfs_callback_tcpport6, PF_INET6);
- } else if (ret == -EAFNOSUPPORT)
- ret = 0;
- else
- goto out_err;
-
return svc_prepare_thread(serv, &serv->sv_pools[0], NUMA_NO_NODE);
-
-out_err:
- if (ret == 0)
- ret = -ENOMEM;
- return ERR_PTR(ret);
}
#if defined(CONFIG_NFS_V4_1)
+static int nfs41_callback_up_net(struct svc_serv *serv, struct net *net)
+{
+ /*
+ * Create an svc_sock for the back channel service that shares the
+ * fore channel connection.
+ * Returns the input port (0) and sets the svc_serv bc_xprt on success
+ */
+ return svc_create_xprt(serv, "tcp-bc", net, PF_INET, 0,
+ SVC_SOCK_ANONYMOUS);
+}
+
/*
* The callback service for NFSv4.1 callbacks
*/
* Bring up the NFSv4.1 callback service
*/
static struct svc_rqst *
-nfs41_callback_up(struct svc_serv *serv, struct rpc_xprt *xprt)
+nfs41_callback_up(struct svc_serv *serv)
{
struct svc_rqst *rqstp;
- int ret;
-
- /*
- * Create an svc_sock for the back channel service that shares the
- * fore channel connection.
- * Returns the input port (0) and sets the svc_serv bc_xprt on success
- */
- ret = svc_create_xprt(serv, "tcp-bc", &init_net, PF_INET, 0,
- SVC_SOCK_ANONYMOUS);
- if (ret < 0) {
- rqstp = ERR_PTR(ret);
- goto out;
- }
-
- /*
- * Save the svc_serv in the transport so that it can
- * be referenced when the session backchannel is initialized
- */
- xprt->bc_serv = serv;
INIT_LIST_HEAD(&serv->sv_cb_list);
spin_lock_init(&serv->sv_cb_lock);
svc_xprt_put(serv->sv_bc_xprt);
serv->sv_bc_xprt = NULL;
}
-out:
dprintk("--> %s return %ld\n", __func__,
IS_ERR(rqstp) ? PTR_ERR(rqstp) : 0);
return rqstp;
}
-static inline int nfs_minorversion_callback_svc_setup(u32 minorversion,
- struct svc_serv *serv, struct rpc_xprt *xprt,
+static void nfs_minorversion_callback_svc_setup(struct svc_serv *serv,
struct svc_rqst **rqstpp, int (**callback_svc)(void *vrqstp))
{
- if (minorversion) {
- *rqstpp = nfs41_callback_up(serv, xprt);
- *callback_svc = nfs41_callback_svc;
- }
- return minorversion;
+ *rqstpp = nfs41_callback_up(serv);
+ *callback_svc = nfs41_callback_svc;
}
static inline void nfs_callback_bc_serv(u32 minorversion, struct rpc_xprt *xprt,
- struct nfs_callback_data *cb_info)
+ struct svc_serv *serv)
{
if (minorversion)
- xprt->bc_serv = cb_info->serv;
+ /*
+ * Save the svc_serv in the transport so that it can
+ * be referenced when the session backchannel is initialized
+ */
+ xprt->bc_serv = serv;
}
#else
-static inline int nfs_minorversion_callback_svc_setup(u32 minorversion,
- struct svc_serv *serv, struct rpc_xprt *xprt,
- struct svc_rqst **rqstpp, int (**callback_svc)(void *vrqstp))
+static int nfs41_callback_up_net(struct svc_serv *serv, struct net *net)
{
return 0;
}
+static void nfs_minorversion_callback_svc_setup(struct svc_serv *serv,
+ struct svc_rqst **rqstpp, int (**callback_svc)(void *vrqstp))
+{
+ *rqstpp = ERR_PTR(-ENOTSUPP);
+ *callback_svc = ERR_PTR(-ENOTSUPP);
+}
+
static inline void nfs_callback_bc_serv(u32 minorversion, struct rpc_xprt *xprt,
- struct nfs_callback_data *cb_info)
+ struct svc_serv *serv)
{
}
#endif /* CONFIG_NFS_V4_1 */
-/*
- * Bring up the callback thread if it is not already up.
- */
-int nfs_callback_up(u32 minorversion, struct rpc_xprt *xprt)
+static int nfs_callback_start_svc(int minorversion, struct rpc_xprt *xprt,
+ struct svc_serv *serv)
{
- struct svc_serv *serv = NULL;
struct svc_rqst *rqstp;
int (*callback_svc)(void *vrqstp);
struct nfs_callback_data *cb_info = &nfs_callback_info[minorversion];
char svc_name[12];
- int ret = 0;
- int minorversion_setup;
- struct net *net = &init_net;
+ int ret;
- mutex_lock(&nfs_callback_mutex);
- if (cb_info->users++ || cb_info->task != NULL) {
- nfs_callback_bc_serv(minorversion, xprt, cb_info);
- goto out;
- }
- serv = svc_create(&nfs4_callback_program, NFS4_CALLBACK_BUFSIZE, NULL);
- if (!serv) {
- ret = -ENOMEM;
- goto out_err;
- }
- /* As there is only one thread we need to over-ride the
- * default maximum of 80 connections
- */
- serv->sv_maxconn = 1024;
+ nfs_callback_bc_serv(minorversion, xprt, serv);
- ret = svc_bind(serv, net);
- if (ret < 0) {
- printk(KERN_WARNING "NFS: bind callback service failed\n");
- goto out_err;
- }
+ if (cb_info->task)
+ return 0;
- minorversion_setup = nfs_minorversion_callback_svc_setup(minorversion,
- serv, xprt, &rqstp, &callback_svc);
- if (!minorversion_setup) {
+ switch (minorversion) {
+ case 0:
/* v4.0 callback setup */
- rqstp = nfs4_callback_up(serv, xprt);
+ rqstp = nfs4_callback_up(serv);
callback_svc = nfs4_callback_svc;
+ break;
+ default:
+ nfs_minorversion_callback_svc_setup(serv,
+ &rqstp, &callback_svc);
}
- if (IS_ERR(rqstp)) {
- ret = PTR_ERR(rqstp);
- goto out_err;
- }
+ if (IS_ERR(rqstp))
+ return PTR_ERR(rqstp);
svc_sock_update_bufs(serv);
svc_exit_thread(cb_info->rqst);
cb_info->rqst = NULL;
cb_info->task = NULL;
- goto out_err;
+ return PTR_ERR(cb_info->task);
+ }
+ dprintk("nfs_callback_up: service started\n");
+ return 0;
+}
+
+static void nfs_callback_down_net(u32 minorversion, struct svc_serv *serv, struct net *net)
+{
+ struct nfs_net *nn = net_generic(net, nfs_net_id);
+
+ if (--nn->cb_users[minorversion])
+ return;
+
+ dprintk("NFS: destroy per-net callback data; net=%p\n", net);
+ svc_shutdown_net(serv, net);
+}
+
+static int nfs_callback_up_net(int minorversion, struct svc_serv *serv, struct net *net)
+{
+ struct nfs_net *nn = net_generic(net, nfs_net_id);
+ int ret;
+
+ if (nn->cb_users[minorversion]++)
+ return 0;
+
+ dprintk("NFS: create per-net callback data; net=%p\n", net);
+
+ ret = svc_bind(serv, net);
+ if (ret < 0) {
+ printk(KERN_WARNING "NFS: bind callback service failed\n");
+ goto err_bind;
+ }
+
+ switch (minorversion) {
+ case 0:
+ ret = nfs4_callback_up_net(serv, net);
+ break;
+ case 1:
+ ret = nfs41_callback_up_net(serv, net);
+ break;
+ default:
+ printk(KERN_ERR "NFS: unknown callback version: %d\n",
+ minorversion);
+ ret = -EINVAL;
+ break;
}
-out:
+
+ if (ret < 0) {
+ printk(KERN_ERR "NFS: callback service start failed\n");
+ goto err_socks;
+ }
+ return 0;
+
+err_socks:
+ svc_rpcb_cleanup(serv, net);
+err_bind:
+ dprintk("NFS: Couldn't create callback socket: err = %d; "
+ "net = %p\n", ret, net);
+ return ret;
+}
+
+static struct svc_serv *nfs_callback_create_svc(int minorversion)
+{
+ struct nfs_callback_data *cb_info = &nfs_callback_info[minorversion];
+ struct svc_serv *serv;
+
+ /*
+ * Check whether we're already up and running.
+ */
+ if (cb_info->task) {
+ /*
+ * Note: increase service usage, because later in case of error
+ * svc_destroy() will be called.
+ */
+ svc_get(cb_info->serv);
+ return cb_info->serv;
+ }
+
+ /*
+ * Sanity check: if there's no task,
+ * we should be the first user ...
+ */
+ if (cb_info->users)
+ printk(KERN_WARNING "nfs_callback_create_svc: no kthread, %d users??\n",
+ cb_info->users);
+
+ serv = svc_create(&nfs4_callback_program, NFS4_CALLBACK_BUFSIZE, NULL);
+ if (!serv) {
+ printk(KERN_ERR "nfs_callback_create_svc: create service failed\n");
+ return ERR_PTR(-ENOMEM);
+ }
+ /* As there is only one thread we need to over-ride the
+ * default maximum of 80 connections
+ */
+ serv->sv_maxconn = 1024;
+ dprintk("nfs_callback_create_svc: service created\n");
+ return serv;
+}
+
+/*
+ * Bring up the callback thread if it is not already up.
+ */
+int nfs_callback_up(u32 minorversion, struct rpc_xprt *xprt)
+{
+ struct svc_serv *serv;
+ struct nfs_callback_data *cb_info = &nfs_callback_info[minorversion];
+ int ret;
+ struct net *net = xprt->xprt_net;
+
+ mutex_lock(&nfs_callback_mutex);
+
+ serv = nfs_callback_create_svc(minorversion);
+ if (IS_ERR(serv)) {
+ ret = PTR_ERR(serv);
+ goto err_create;
+ }
+
+ ret = nfs_callback_up_net(minorversion, serv, net);
+ if (ret < 0)
+ goto err_net;
+
+ ret = nfs_callback_start_svc(minorversion, xprt, serv);
+ if (ret < 0)
+ goto err_start;
+
+ cb_info->users++;
/*
* svc_create creates the svc_serv with sv_nrthreads == 1, and then
* svc_prepare_thread increments that. So we need to call svc_destroy
* on both success and failure so that the refcount is 1 when the
* thread exits.
*/
- if (serv)
- svc_destroy(serv);
+err_net:
+ svc_destroy(serv);
+err_create:
mutex_unlock(&nfs_callback_mutex);
return ret;
-out_err:
- dprintk("NFS: Couldn't create callback socket or server thread; "
- "err = %d\n", ret);
- cb_info->users--;
- if (serv)
- svc_shutdown_net(serv, net);
- goto out;
+
+err_start:
+ nfs_callback_down_net(minorversion, serv, net);
+ dprintk("NFS: Couldn't create server thread; err = %d\n", ret);
+ goto err_net;
}
/*
* Kill the callback thread if it's no longer being used.
*/
-void nfs_callback_down(int minorversion)
+void nfs_callback_down(int minorversion, struct net *net)
{
struct nfs_callback_data *cb_info = &nfs_callback_info[minorversion];
mutex_lock(&nfs_callback_mutex);
+ nfs_callback_down_net(minorversion, cb_info->serv, net);
cb_info->users--;
if (cb_info->users == 0 && cb_info->task != NULL) {
kthread_stop(cb_info->task);
- svc_shutdown_net(cb_info->serv, &init_net);
+ dprintk("nfs_callback_down: service stopped\n");
svc_exit_thread(cb_info->rqst);
+ dprintk("nfs_callback_down: service destroyed\n");
cb_info->serv = NULL;
cb_info->rqst = NULL;
cb_info->task = NULL;
struct cb_process_state *cps);
#if IS_ENABLED(CONFIG_NFS_V4)
extern int nfs_callback_up(u32 minorversion, struct rpc_xprt *xprt);
-extern void nfs_callback_down(int minorversion);
+extern void nfs_callback_down(int minorversion, struct net *net);
extern int nfs4_validate_delegation_stateid(struct nfs_delegation *delegation,
const nfs4_stateid *stateid);
extern int nfs4_set_callback_sessionid(struct nfs_client *clp);
extern unsigned int nfs_callback_set_tcpport;
extern unsigned short nfs_callback_tcpport;
-extern unsigned short nfs_callback_tcpport6;
#endif /* __LINUX_FS_NFS_CALLBACK_H */
ino = igrab(lo->plh_inode);
if (!ino)
continue;
- get_layout_hdr(lo);
+ spin_lock(&ino->i_lock);
+ /* Is this layout in the process of being freed? */
+ if (NFS_I(ino)->layout != lo) {
+ spin_unlock(&ino->i_lock);
+ iput(ino);
+ continue;
+ }
+ pnfs_get_layout_hdr(lo);
+ spin_unlock(&ino->i_lock);
return lo;
}
}
ino = lo->plh_inode;
spin_lock(&ino->i_lock);
if (test_bit(NFS_LAYOUT_BULK_RECALL, &lo->plh_flags) ||
- mark_matching_lsegs_invalid(lo, &free_me_list,
+ pnfs_mark_matching_lsegs_invalid(lo, &free_me_list,
&args->cbl_range))
rv = NFS4ERR_DELAY;
else
pnfs_set_layout_stateid(lo, &args->cbl_stateid, true);
spin_unlock(&ino->i_lock);
pnfs_free_lseg_list(&free_me_list);
- put_layout_hdr(lo);
+ pnfs_put_layout_hdr(lo);
iput(ino);
return rv;
}
continue;
list_for_each_entry(lo, &server->layouts, plh_layouts) {
- if (!igrab(lo->plh_inode))
+ ino = igrab(lo->plh_inode);
+ if (ino)
+ continue;
+ spin_lock(&ino->i_lock);
+ /* Is this layout in the process of being freed? */
+ if (NFS_I(ino)->layout != lo) {
+ spin_unlock(&ino->i_lock);
+ iput(ino);
continue;
- get_layout_hdr(lo);
+ }
+ pnfs_get_layout_hdr(lo);
+ spin_unlock(&ino->i_lock);
BUG_ON(!list_empty(&lo->plh_bulk_recall));
list_add(&lo->plh_bulk_recall, &recall_list);
}
ino = lo->plh_inode;
spin_lock(&ino->i_lock);
set_bit(NFS_LAYOUT_BULK_RECALL, &lo->plh_flags);
- if (mark_matching_lsegs_invalid(lo, &free_me_list, &range))
+ if (pnfs_mark_matching_lsegs_invalid(lo, &free_me_list, &range))
rv = NFS4ERR_DELAY;
list_del_init(&lo->plh_bulk_recall);
spin_unlock(&ino->i_lock);
pnfs_free_lseg_list(&free_me_list);
- put_layout_hdr(lo);
+ pnfs_put_layout_hdr(lo);
iput(ino);
}
return rv;
spin_unlock(&nfs_version_lock);
return nfs;
}
- };
+ }
spin_unlock(&nfs_version_lock);
- return ERR_PTR(-EPROTONOSUPPORT);;
+ return ERR_PTR(-EPROTONOSUPPORT);
}
struct nfs_subversion *get_nfs_version(unsigned int version)
return nfs_found_client(cl_init, clp);
}
if (new) {
- list_add(&new->cl_share_link, &nn->nfs_client_list);
+ list_add_tail(&new->cl_share_link,
+ &nn->nfs_client_list);
spin_unlock(&nn->nfs_client_lock);
new->cl_flags = cl_init->init_flags;
return rpc_ops->init_client(new, timeparms, ip_addr,
{
struct nfs_client *clp = server->nfs_client;
- server->client = rpc_clone_client(clp->cl_rpcclient);
+ server->client = rpc_clone_client_set_auth(clp->cl_rpcclient,
+ pseudoflavour);
if (IS_ERR(server->client)) {
dprintk("%s: couldn't create rpc_client!\n", __func__);
return PTR_ERR(server->client);
timeo,
sizeof(server->client->cl_timeout_default));
server->client->cl_timeout = &server->client->cl_timeout_default;
-
- if (pseudoflavour != clp->cl_rpcclient->cl_auth->au_flavor) {
- struct rpc_auth *auth;
-
- auth = rpcauth_create(pseudoflavour, server->client);
- if (IS_ERR(auth)) {
- dprintk("%s: couldn't create credcache!\n", __func__);
- return PTR_ERR(auth);
- }
- }
server->client->cl_softrtry = 0;
if (server->flags & NFS_MOUNT_SOFT)
server->client->cl_softrtry = 1;
data->timeo, data->retrans);
if (data->flags & NFS_MOUNT_NORESVPORT)
set_bit(NFS_CS_NORESVPORT, &cl_init.init_flags);
+ if (server->options & NFS_OPTION_MIGRATION)
+ set_bit(NFS_CS_MIGRATION, &cl_init.init_flags);
/* Allocate or find a client reference we can use */
clp = nfs_get_client(&cl_init, &timeparms, NULL, RPC_AUTH_UNIX);
if (server->wsize > NFS_MAX_FILE_IO_SIZE)
server->wsize = NFS_MAX_FILE_IO_SIZE;
server->wpages = (server->wsize + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
- server->pnfs_blksize = fsinfo->blksize;
server->wtmult = nfs_block_bits(fsinfo->wtmult, NULL);
nfs_access_free_entry(entry);
}
-static void nfs_access_add_cache(struct inode *inode, struct nfs_access_entry *set)
+void nfs_access_add_cache(struct inode *inode, struct nfs_access_entry *set)
{
struct nfs_access_entry *cache = kmalloc(sizeof(*cache), GFP_KERNEL);
if (cache == NULL)
spin_unlock(&nfs_access_lru_lock);
}
}
+EXPORT_SYMBOL_GPL(nfs_access_add_cache);
+
+void nfs_access_set_mask(struct nfs_access_entry *entry, u32 access_result)
+{
+ entry->mask = 0;
+ if (access_result & NFS4_ACCESS_READ)
+ entry->mask |= MAY_READ;
+ if (access_result &
+ (NFS4_ACCESS_MODIFY | NFS4_ACCESS_EXTEND | NFS4_ACCESS_DELETE))
+ entry->mask |= MAY_WRITE;
+ if (access_result & (NFS4_ACCESS_LOOKUP|NFS4_ACCESS_EXECUTE))
+ entry->mask |= MAY_EXEC;
+}
+EXPORT_SYMBOL_GPL(nfs_access_set_mask);
static int nfs_do_access(struct inode *inode, struct rpc_cred *cred, int mask)
{
#include <linux/kref.h>
#include <linux/slab.h>
#include <linux/task_io_accounting_ops.h>
+#include <linux/module.h>
#include <linux/nfs_fs.h>
#include <linux/nfs_page.h>
atomic_t io_count; /* i/os we're waiting for */
spinlock_t lock; /* protect completion state */
ssize_t count, /* bytes actually processed */
+ bytes_left, /* bytes left to be sent */
error; /* any reported error */
struct completion completion; /* wait for i/o completion */
kref_put(&dreq->kref, nfs_direct_req_free);
}
+ssize_t nfs_dreq_bytes_left(struct nfs_direct_req *dreq)
+{
+ return dreq->bytes_left;
+}
+EXPORT_SYMBOL_GPL(nfs_dreq_bytes_left);
+
/*
* Collects and returns the final error value/byte-count.
*/
user_addr += req_len;
pos += req_len;
count -= req_len;
+ dreq->bytes_left -= req_len;
}
/* The nfs_page now hold references to these pages */
nfs_direct_release_pages(pagevec, npages);
ssize_t result = -ENOMEM;
struct inode *inode = iocb->ki_filp->f_mapping->host;
struct nfs_direct_req *dreq;
+ struct nfs_lock_context *l_ctx;
dreq = nfs_direct_req_alloc();
if (dreq == NULL)
goto out;
dreq->inode = inode;
+ dreq->bytes_left = iov_length(iov, nr_segs);
dreq->ctx = get_nfs_open_context(nfs_file_open_context(iocb->ki_filp));
- dreq->l_ctx = nfs_get_lock_context(dreq->ctx);
- if (dreq->l_ctx == NULL)
+ l_ctx = nfs_get_lock_context(dreq->ctx);
+ if (IS_ERR(l_ctx)) {
+ result = PTR_ERR(l_ctx);
goto out_release;
+ }
+ dreq->l_ctx = l_ctx;
if (!is_sync_kiocb(iocb))
dreq->iocb = iocb;
+ NFS_I(inode)->read_io += iov_length(iov, nr_segs);
result = nfs_direct_read_schedule_iovec(dreq, iov, nr_segs, pos, uio);
if (!result)
result = nfs_direct_wait(dreq);
- NFS_I(inode)->read_io += result;
out_release:
nfs_direct_req_release(dreq);
out:
user_addr += req_len;
pos += req_len;
count -= req_len;
+ dreq->bytes_left -= req_len;
}
/* The nfs_page now hold references to these pages */
nfs_direct_release_pages(pagevec, npages);
get_dreq(dreq);
atomic_inc(&inode->i_dio_count);
+ NFS_I(dreq->inode)->write_io += iov_length(iov, nr_segs);
for (seg = 0; seg < nr_segs; seg++) {
const struct iovec *vec = &iov[seg];
result = nfs_direct_write_schedule_segment(&desc, vec, pos, uio);
pos += vec->iov_len;
}
nfs_pageio_complete(&desc);
- NFS_I(dreq->inode)->write_io += desc.pg_bytes_written;
/*
* If no bytes were started, return the error, and let the
ssize_t result = -ENOMEM;
struct inode *inode = iocb->ki_filp->f_mapping->host;
struct nfs_direct_req *dreq;
+ struct nfs_lock_context *l_ctx;
dreq = nfs_direct_req_alloc();
if (!dreq)
goto out;
dreq->inode = inode;
+ dreq->bytes_left = count;
dreq->ctx = get_nfs_open_context(nfs_file_open_context(iocb->ki_filp));
- dreq->l_ctx = nfs_get_lock_context(dreq->ctx);
- if (dreq->l_ctx == NULL)
+ l_ctx = nfs_get_lock_context(dreq->ctx);
+ if (IS_ERR(l_ctx)) {
+ result = PTR_ERR(l_ctx);
goto out_release;
+ }
+ dreq->l_ctx = l_ctx;
if (!is_sync_kiocb(iocb))
dreq->iocb = iocb;
struct dentry *dentry = file->f_path.dentry;
struct nfs_open_context *ctx = nfs_file_open_context(file);
struct inode *inode = dentry->d_inode;
- int have_error, status;
+ int have_error, do_resend, status;
int ret = 0;
dprintk("NFS: fsync file(%s/%s) datasync %d\n",
datasync);
nfs_inc_stats(inode, NFSIOS_VFSFSYNC);
+ do_resend = test_and_clear_bit(NFS_CONTEXT_RESEND_WRITES, &ctx->flags);
have_error = test_and_clear_bit(NFS_CONTEXT_ERROR_WRITE, &ctx->flags);
status = nfs_commit_inode(inode, FLUSH_SYNC);
- if (status >= 0 && ret < 0)
- status = ret;
have_error |= test_bit(NFS_CONTEXT_ERROR_WRITE, &ctx->flags);
- if (have_error)
+ if (have_error) {
ret = xchg(&ctx->error, 0);
- if (!ret && status < 0)
+ if (ret)
+ goto out;
+ }
+ if (status < 0) {
ret = status;
+ goto out;
+ }
+ do_resend |= test_bit(NFS_CONTEXT_RESEND_WRITES, &ctx->flags);
+ if (do_resend)
+ ret = -EAGAIN;
+out:
return ret;
}
EXPORT_SYMBOL_GPL(nfs_file_fsync_commit);
int ret;
struct inode *inode = file->f_path.dentry->d_inode;
- ret = filemap_write_and_wait_range(inode->i_mapping, start, end);
- if (ret != 0)
- goto out;
- mutex_lock(&inode->i_mutex);
- ret = nfs_file_fsync_commit(file, start, end, datasync);
- mutex_unlock(&inode->i_mutex);
-out:
+ do {
+ ret = filemap_write_and_wait_range(inode->i_mapping, start, end);
+ if (ret != 0)
+ break;
+ mutex_lock(&inode->i_mutex);
+ ret = nfs_file_fsync_commit(file, start, end, datasync);
+ mutex_unlock(&inode->i_mutex);
+ /*
+ * If nfs_file_fsync_commit detected a server reboot, then
+ * resend all dirty pages that might have been covered by
+ * the NFS_CONTEXT_RESEND_WRITES flag
+ */
+ start = 0;
+ end = LLONG_MAX;
+ } while (ret == -EAGAIN);
+
return ret;
}
#include <asm/uaccess.h>
+#include "internal.h"
+
#define NFSDBG_FACILITY NFSDBG_CLIENT
/*
static const struct cred *id_resolver_cache;
static struct key_type key_type_id_resolver_legacy;
-struct idmap {
- struct rpc_pipe *idmap_pipe;
- struct key_construction *idmap_key_cons;
- struct mutex idmap_mutex;
-};
-
struct idmap_legacy_upcalldata {
struct rpc_pipe_msg pipe_msg;
struct idmap_msg idmap_msg;
+ struct key_construction *key_cons;
struct idmap *idmap;
};
+struct idmap {
+ struct rpc_pipe *idmap_pipe;
+ struct idmap_legacy_upcalldata *idmap_upcall_data;
+ struct mutex idmap_mutex;
+};
+
/**
* nfs_fattr_init_names - initialise the nfs_fattr owner_name/group_name fields
* @fattr: fully initialised struct nfs_fattr
return 0;
memcpy(buf, name, namelen);
buf[namelen] = '\0';
- if (strict_strtoul(buf, 0, &val) != 0)
+ if (kstrtoul(buf, 0, &val) != 0)
return 0;
*res = val;
return 1;
ret = nfs_idmap_request_key(&key_type_id_resolver_legacy,
name, namelen, type, data,
data_size, idmap);
- idmap->idmap_key_cons = NULL;
mutex_unlock(&idmap->idmap_mutex);
}
return ret;
if (data_size <= 0) {
ret = -EINVAL;
} else {
- ret = strict_strtol(id_str, 10, &id_long);
+ ret = kstrtol(id_str, 10, &id_long);
*id = (__u32)id_long;
}
return ret;
struct rpc_pipe *pipe;
int error;
- BUG_ON(clp->cl_idmap != NULL);
-
idmap = kzalloc(sizeof(*idmap), GFP_KERNEL);
if (idmap == NULL)
return -ENOMEM;
switch (event) {
case RPC_PIPEFS_MOUNT:
- BUG_ON(clp->cl_rpcclient->cl_dentry == NULL);
err = __nfs_idmap_register(clp->cl_rpcclient->cl_dentry,
clp->cl_idmap,
clp->cl_idmap->idmap_pipe);
substring_t substr;
int token, ret;
- memset(im, 0, sizeof(*im));
- memset(msg, 0, sizeof(*msg));
-
im->im_type = IDMAP_TYPE_GROUP;
token = match_token(desc, nfs_idmap_tokens, &substr);
return ret;
}
+static bool
+nfs_idmap_prepare_pipe_upcall(struct idmap *idmap,
+ struct idmap_legacy_upcalldata *data)
+{
+ if (idmap->idmap_upcall_data != NULL) {
+ WARN_ON_ONCE(1);
+ return false;
+ }
+ idmap->idmap_upcall_data = data;
+ return true;
+}
+
+static void
+nfs_idmap_complete_pipe_upcall_locked(struct idmap *idmap, int ret)
+{
+ struct key_construction *cons = idmap->idmap_upcall_data->key_cons;
+
+ kfree(idmap->idmap_upcall_data);
+ idmap->idmap_upcall_data = NULL;
+ complete_request_key(cons, ret);
+}
+
+static void
+nfs_idmap_abort_pipe_upcall(struct idmap *idmap, int ret)
+{
+ if (idmap->idmap_upcall_data != NULL)
+ nfs_idmap_complete_pipe_upcall_locked(idmap, ret);
+}
+
static int nfs_idmap_legacy_upcall(struct key_construction *cons,
const char *op,
void *aux)
int ret = -ENOMEM;
/* msg and im are freed in idmap_pipe_destroy_msg */
- data = kmalloc(sizeof(*data), GFP_KERNEL);
+ data = kzalloc(sizeof(*data), GFP_KERNEL);
if (!data)
goto out1;
msg = &data->pipe_msg;
im = &data->idmap_msg;
data->idmap = idmap;
+ data->key_cons = cons;
ret = nfs_idmap_prepare_message(key->description, idmap, im, msg);
if (ret < 0)
goto out2;
- BUG_ON(idmap->idmap_key_cons != NULL);
- idmap->idmap_key_cons = cons;
+ ret = -EAGAIN;
+ if (!nfs_idmap_prepare_pipe_upcall(idmap, data))
+ goto out2;
ret = rpc_queue_upcall(idmap->idmap_pipe, msg);
if (ret < 0)
- goto out3;
+ nfs_idmap_abort_pipe_upcall(idmap, ret);
return ret;
-
-out3:
- idmap->idmap_key_cons = NULL;
out2:
kfree(data);
out1:
authkey);
}
-static int nfs_idmap_read_message(struct idmap_msg *im, struct key *key, struct key *authkey)
+static int nfs_idmap_read_and_verify_message(struct idmap_msg *im,
+ struct idmap_msg *upcall,
+ struct key *key, struct key *authkey)
{
char id_str[NFS_UINT_MAXLEN];
- int ret = -EINVAL;
+ int ret = -ENOKEY;
+ /* ret = -ENOKEY */
+ if (upcall->im_type != im->im_type || upcall->im_conv != im->im_conv)
+ goto out;
switch (im->im_conv) {
case IDMAP_CONV_NAMETOID:
+ if (strcmp(upcall->im_name, im->im_name) != 0)
+ break;
sprintf(id_str, "%d", im->im_id);
ret = nfs_idmap_instantiate(key, authkey, id_str);
break;
case IDMAP_CONV_IDTONAME:
+ if (upcall->im_id != im->im_id)
+ break;
ret = nfs_idmap_instantiate(key, authkey, im->im_name);
break;
+ default:
+ ret = -EINVAL;
}
-
+out:
return ret;
}
struct key_construction *cons;
struct idmap_msg im;
size_t namelen_in;
- int ret;
+ int ret = -ENOKEY;
/* If instantiation is successful, anyone waiting for key construction
* will have been woken up and someone else may now have used
* idmap_key_cons - so after this point we may no longer touch it.
*/
- cons = ACCESS_ONCE(idmap->idmap_key_cons);
- idmap->idmap_key_cons = NULL;
+ if (idmap->idmap_upcall_data == NULL)
+ goto out_noupcall;
+
+ cons = idmap->idmap_upcall_data->key_cons;
if (mlen != sizeof(im)) {
ret = -ENOSPC;
if (namelen_in == 0 || namelen_in == IDMAP_NAMESZ) {
ret = -EINVAL;
goto out;
- }
+}
- ret = nfs_idmap_read_message(&im, cons->key, cons->authkey);
+ ret = nfs_idmap_read_and_verify_message(&im,
+ &idmap->idmap_upcall_data->idmap_msg,
+ cons->key, cons->authkey);
if (ret >= 0) {
key_set_timeout(cons->key, nfs_idmap_cache_timeout);
ret = mlen;
}
out:
- complete_request_key(cons, ret);
+ nfs_idmap_complete_pipe_upcall_locked(idmap, ret);
+out_noupcall:
return ret;
}
struct idmap_legacy_upcalldata,
pipe_msg);
struct idmap *idmap = data->idmap;
- struct key_construction *cons;
- if (msg->errno) {
- cons = ACCESS_ONCE(idmap->idmap_key_cons);
- idmap->idmap_key_cons = NULL;
- complete_request_key(cons, msg->errno);
- }
- /* Free memory allocated in nfs_idmap_legacy_upcall() */
- kfree(data);
+
+ if (msg->errno)
+ nfs_idmap_abort_pipe_upcall(idmap, msg->errno);
}
static void
{
struct rpc_inode *rpci = RPC_I(inode);
struct idmap *idmap = (struct idmap *)rpci->private;
- idmap->idmap_key_cons = NULL;
+
+ nfs_idmap_abort_pipe_upcall(idmap, -EPIPE);
}
int nfs_map_name_to_uid(const struct nfs_server *server, const char *name, size_t namelen, __u32 *uid)
static void nfs_init_lock_context(struct nfs_lock_context *l_ctx)
{
atomic_set(&l_ctx->count, 1);
- l_ctx->lockowner = current->files;
- l_ctx->pid = current->tgid;
+ l_ctx->lockowner.l_owner = current->files;
+ l_ctx->lockowner.l_pid = current->tgid;
INIT_LIST_HEAD(&l_ctx->list);
}
struct nfs_lock_context *pos;
list_for_each_entry(pos, &ctx->lock_context.list, list) {
- if (pos->lockowner != current->files)
+ if (pos->lockowner.l_owner != current->files)
continue;
- if (pos->pid != current->tgid)
+ if (pos->lockowner.l_pid != current->tgid)
continue;
atomic_inc(&pos->count);
return pos;
spin_unlock(&inode->i_lock);
new = kmalloc(sizeof(*new), GFP_KERNEL);
if (new == NULL)
- return NULL;
+ return ERR_PTR(-ENOMEM);
nfs_init_lock_context(new);
spin_lock(&inode->i_lock);
res = __nfs_find_lock_context(ctx);
*/
struct nfs_parsed_mount_data {
int flags;
- int rsize, wsize;
- int timeo, retrans;
- int acregmin, acregmax,
+ unsigned int rsize, wsize;
+ unsigned int timeo, retrans;
+ unsigned int acregmin, acregmax,
acdirmin, acdirmax;
- int namlen;
+ unsigned int namlen;
unsigned int options;
unsigned int bsize;
unsigned int auth_flavor_len;
{
inode_dio_wait(inode);
}
+extern ssize_t nfs_dreq_bytes_left(struct nfs_direct_req *dreq);
/* nfs4proc.c */
extern void __nfs4_read_done_cb(struct nfs_read_data *);
struct nfs4_sequence_args *args,
struct nfs4_sequence_res *res,
int cache_reply);
+extern int nfs40_walk_client_list(struct nfs_client *clp,
+ struct nfs_client **result,
+ struct rpc_cred *cred);
+extern int nfs41_walk_client_list(struct nfs_client *clp,
+ struct nfs_client **result,
+ struct rpc_cred *cred);
/*
* Determine the device name as a string
#ifndef __NFS_NETNS_H__
#define __NFS_NETNS_H__
+#include <linux/nfs4.h>
#include <net/net_namespace.h>
#include <net/netns/generic.h>
struct list_head nfs_volume_list;
#if IS_ENABLED(CONFIG_NFS_V4)
struct idr cb_ident_idr; /* Protected by nfs_client_lock */
+ unsigned short nfs_callback_tcpport;
+ unsigned short nfs_callback_tcpport6;
+ int cb_users[NFS4_MAX_MINOR_VERSION + 1];
#endif
spinlock_t nfs_client_lock;
struct timespec boot_time;
struct nfs4_lock_state {
struct list_head ls_locks; /* Other lock stateids */
struct nfs4_state * ls_state; /* Pointer to open state */
-#define NFS_LOCK_INITIALIZED 1
- int ls_flags;
+#define NFS_LOCK_INITIALIZED 0
+ unsigned long ls_flags;
struct nfs_seqid_counter ls_seqid;
nfs4_stateid ls_stateid;
atomic_t ls_count;
int (*establish_clid)(struct nfs_client *, struct rpc_cred *);
struct rpc_cred * (*get_clid_cred)(struct nfs_client *);
int (*reclaim_complete)(struct nfs_client *);
+ int (*detect_trunking)(struct nfs_client *, struct nfs_client **,
+ struct rpc_cred *);
};
struct nfs4_state_maintenance_ops {
extern int nfs4_destroy_clientid(struct nfs_client *clp);
extern int nfs4_init_clientid(struct nfs_client *, struct rpc_cred *);
extern int nfs41_init_clientid(struct nfs_client *, struct rpc_cred *);
-extern int nfs4_do_close(struct nfs4_state *state, gfp_t gfp_mask, int wait, bool roc);
+extern int nfs4_do_close(struct nfs4_state *state, gfp_t gfp_mask, int wait);
extern int nfs4_server_capabilities(struct nfs_server *server, struct nfs_fh *fhandle);
extern int nfs4_proc_fs_locations(struct rpc_clnt *, struct inode *, const struct qstr *,
struct nfs4_fs_locations *, struct page *);
/* nfs4state.c */
struct rpc_cred *nfs4_get_setclientid_cred(struct nfs_client *clp);
struct rpc_cred *nfs4_get_renew_cred_locked(struct nfs_client *clp);
+int nfs4_discover_server_trunking(struct nfs_client *clp,
+ struct nfs_client **);
+int nfs40_discover_server_trunking(struct nfs_client *clp,
+ struct nfs_client **, struct rpc_cred *);
#if defined(CONFIG_NFS_V4_1)
struct rpc_cred *nfs4_get_machine_cred_locked(struct nfs_client *clp);
struct rpc_cred *nfs4_get_exchange_id_cred(struct nfs_client *clp);
+int nfs41_discover_server_trunking(struct nfs_client *clp,
+ struct nfs_client **, struct rpc_cred *);
extern void nfs4_schedule_session_recovery(struct nfs4_session *, int);
#else
static inline void nfs4_schedule_session_recovery(struct nfs4_session *session, int err)
extern void nfs4_put_lock_state(struct nfs4_lock_state *lsp);
extern int nfs4_set_lock_state(struct nfs4_state *state, struct file_lock *fl);
extern void nfs4_select_rw_stateid(nfs4_stateid *, struct nfs4_state *,
- fmode_t, fl_owner_t, pid_t);
+ fmode_t, const struct nfs_lockowner *);
extern struct nfs_seqid *nfs_alloc_seqid(struct nfs_seqid_counter *counter, gfp_t gfp_mask);
extern int nfs_wait_on_sequence(struct nfs_seqid *seqid, struct rpc_task *task);
extern unsigned short max_session_slots;
extern unsigned short send_implementation_id;
+#define NFS4_CLIENT_ID_UNIQ_LEN (64)
+extern char nfs4_client_id_uniquifier[NFS4_CLIENT_ID_UNIQ_LEN];
+
/* nfs4sysctl.c */
#ifdef CONFIG_SYSCTL
int nfs4_register_sysctl(void);
static void nfs4_destroy_callback(struct nfs_client *clp)
{
if (__test_and_clear_bit(NFS_CS_CALLBACK, &clp->cl_res_state))
- nfs_callback_down(clp->cl_mvops->minor_version);
+ nfs_callback_down(clp->cl_mvops->minor_version, clp->cl_net);
}
static void nfs4_shutdown_client(struct nfs_client *clp)
rpc_authflavor_t authflavour)
{
char buf[INET6_ADDRSTRLEN + 1];
+ struct nfs_client *old;
int error;
if (clp->cl_cons_state == NFS_CS_READY) {
if (!nfs4_has_session(clp))
nfs_mark_client_ready(clp, NFS_CS_READY);
+
+ error = nfs4_discover_server_trunking(clp, &old);
+ if (error < 0)
+ goto error;
+ if (clp != old) {
+ clp->cl_preserve_clid = true;
+ nfs_put_client(clp);
+ clp = old;
+ atomic_inc(&clp->cl_count);
+ }
+
return clp;
error:
return ERR_PTR(error);
}
+/*
+ * SETCLIENTID just did a callback update with the callback ident in
+ * "drop," but server trunking discovery claims "drop" and "keep" are
+ * actually the same server. Swap the callback IDs so that "keep"
+ * will continue to use the callback ident the server now knows about,
+ * and so that "keep"'s original callback ident is destroyed when
+ * "drop" is freed.
+ */
+static void nfs4_swap_callback_idents(struct nfs_client *keep,
+ struct nfs_client *drop)
+{
+ struct nfs_net *nn = net_generic(keep->cl_net, nfs_net_id);
+ unsigned int save = keep->cl_cb_ident;
+
+ if (keep->cl_cb_ident == drop->cl_cb_ident)
+ return;
+
+ dprintk("%s: keeping callback ident %u and dropping ident %u\n",
+ __func__, keep->cl_cb_ident, drop->cl_cb_ident);
+
+ spin_lock(&nn->nfs_client_lock);
+
+ idr_replace(&nn->cb_ident_idr, keep, drop->cl_cb_ident);
+ keep->cl_cb_ident = drop->cl_cb_ident;
+
+ idr_replace(&nn->cb_ident_idr, drop, save);
+ drop->cl_cb_ident = save;
+
+ spin_unlock(&nn->nfs_client_lock);
+}
+
+/**
+ * nfs40_walk_client_list - Find server that recognizes a client ID
+ *
+ * @new: nfs_client with client ID to test
+ * @result: OUT: found nfs_client, or new
+ * @cred: credential to use for trunking test
+ *
+ * Returns zero, a negative errno, or a negative NFS4ERR status.
+ * If zero is returned, an nfs_client pointer is planted in "result."
+ *
+ * NB: nfs40_walk_client_list() relies on the new nfs_client being
+ * the last nfs_client on the list.
+ */
+int nfs40_walk_client_list(struct nfs_client *new,
+ struct nfs_client **result,
+ struct rpc_cred *cred)
+{
+ struct nfs_net *nn = net_generic(new->cl_net, nfs_net_id);
+ struct nfs_client *pos, *n, *prev = NULL;
+ struct nfs4_setclientid_res clid = {
+ .clientid = new->cl_clientid,
+ .confirm = new->cl_confirm,
+ };
+ int status;
+
+ spin_lock(&nn->nfs_client_lock);
+ list_for_each_entry_safe(pos, n, &nn->nfs_client_list, cl_share_link) {
+ /* If "pos" isn't marked ready, we can't trust the
+ * remaining fields in "pos" */
+ if (pos->cl_cons_state < NFS_CS_READY)
+ continue;
+
+ if (pos->rpc_ops != new->rpc_ops)
+ continue;
+
+ if (pos->cl_proto != new->cl_proto)
+ continue;
+
+ if (pos->cl_minorversion != new->cl_minorversion)
+ continue;
+
+ if (pos->cl_clientid != new->cl_clientid)
+ continue;
+
+ atomic_inc(&pos->cl_count);
+ spin_unlock(&nn->nfs_client_lock);
+
+ if (prev)
+ nfs_put_client(prev);
+
+ status = nfs4_proc_setclientid_confirm(pos, &clid, cred);
+ if (status == 0) {
+ nfs4_swap_callback_idents(pos, new);
+
+ nfs_put_client(pos);
+ *result = pos;
+ dprintk("NFS: <-- %s using nfs_client = %p ({%d})\n",
+ __func__, pos, atomic_read(&pos->cl_count));
+ return 0;
+ }
+ if (status != -NFS4ERR_STALE_CLIENTID) {
+ nfs_put_client(pos);
+ dprintk("NFS: <-- %s status = %d, no result\n",
+ __func__, status);
+ return status;
+ }
+
+ spin_lock(&nn->nfs_client_lock);
+ prev = pos;
+ }
+
+ /*
+ * No matching nfs_client found. This should be impossible,
+ * because the new nfs_client has already been added to
+ * nfs_client_list by nfs_get_client().
+ *
+ * Don't BUG(), since the caller is holding a mutex.
+ */
+ if (prev)
+ nfs_put_client(prev);
+ spin_unlock(&nn->nfs_client_lock);
+ pr_err("NFS: %s Error: no matching nfs_client found\n", __func__);
+ return -NFS4ERR_STALE_CLIENTID;
+}
+
+#ifdef CONFIG_NFS_V4_1
+/*
+ * Returns true if the client IDs match
+ */
+static bool nfs4_match_clientids(struct nfs_client *a, struct nfs_client *b)
+{
+ if (a->cl_clientid != b->cl_clientid) {
+ dprintk("NFS: --> %s client ID %llx does not match %llx\n",
+ __func__, a->cl_clientid, b->cl_clientid);
+ return false;
+ }
+ dprintk("NFS: --> %s client ID %llx matches %llx\n",
+ __func__, a->cl_clientid, b->cl_clientid);
+ return true;
+}
+
+/*
+ * Returns true if the server owners match
+ */
+static bool
+nfs4_match_serverowners(struct nfs_client *a, struct nfs_client *b)
+{
+ struct nfs41_server_owner *o1 = a->cl_serverowner;
+ struct nfs41_server_owner *o2 = b->cl_serverowner;
+
+ if (o1->minor_id != o2->minor_id) {
+ dprintk("NFS: --> %s server owner minor IDs do not match\n",
+ __func__);
+ return false;
+ }
+
+ if (o1->major_id_sz != o2->major_id_sz)
+ goto out_major_mismatch;
+ if (memcmp(o1->major_id, o2->major_id, o1->major_id_sz) != 0)
+ goto out_major_mismatch;
+
+ dprintk("NFS: --> %s server owners match\n", __func__);
+ return true;
+
+out_major_mismatch:
+ dprintk("NFS: --> %s server owner major IDs do not match\n",
+ __func__);
+ return false;
+}
+
+/**
+ * nfs41_walk_client_list - Find nfs_client that matches a client/server owner
+ *
+ * @new: nfs_client with client ID to test
+ * @result: OUT: found nfs_client, or new
+ * @cred: credential to use for trunking test
+ *
+ * Returns zero, a negative errno, or a negative NFS4ERR status.
+ * If zero is returned, an nfs_client pointer is planted in "result."
+ *
+ * NB: nfs41_walk_client_list() relies on the new nfs_client being
+ * the last nfs_client on the list.
+ */
+int nfs41_walk_client_list(struct nfs_client *new,
+ struct nfs_client **result,
+ struct rpc_cred *cred)
+{
+ struct nfs_net *nn = net_generic(new->cl_net, nfs_net_id);
+ struct nfs_client *pos, *n, *prev = NULL;
+ int error;
+
+ spin_lock(&nn->nfs_client_lock);
+ list_for_each_entry_safe(pos, n, &nn->nfs_client_list, cl_share_link) {
+ /* If "pos" isn't marked ready, we can't trust the
+ * remaining fields in "pos", especially the client
+ * ID and serverowner fields. Wait for CREATE_SESSION
+ * to finish. */
+ if (pos->cl_cons_state < NFS_CS_READY) {
+ atomic_inc(&pos->cl_count);
+ spin_unlock(&nn->nfs_client_lock);
+
+ if (prev)
+ nfs_put_client(prev);
+ prev = pos;
+
+ error = nfs_wait_client_init_complete(pos);
+ if (error < 0) {
+ nfs_put_client(pos);
+ spin_lock(&nn->nfs_client_lock);
+ continue;
+ }
+
+ spin_lock(&nn->nfs_client_lock);
+ }
+
+ if (pos->rpc_ops != new->rpc_ops)
+ continue;
+
+ if (pos->cl_proto != new->cl_proto)
+ continue;
+
+ if (pos->cl_minorversion != new->cl_minorversion)
+ continue;
+
+ if (!nfs4_match_clientids(pos, new))
+ continue;
+
+ if (!nfs4_match_serverowners(pos, new))
+ continue;
+
+ spin_unlock(&nn->nfs_client_lock);
+ dprintk("NFS: <-- %s using nfs_client = %p ({%d})\n",
+ __func__, pos, atomic_read(&pos->cl_count));
+
+ *result = pos;
+ return 0;
+ }
+
+ /*
+ * No matching nfs_client found. This should be impossible,
+ * because the new nfs_client has already been added to
+ * nfs_client_list by nfs_get_client().
+ *
+ * Don't BUG(), since the caller is holding a mutex.
+ */
+ spin_unlock(&nn->nfs_client_lock);
+ pr_err("NFS: %s Error: no matching nfs_client found\n", __func__);
+ return -NFS4ERR_STALE_CLIENTID;
+}
+#endif /* CONFIG_NFS_V4_1 */
+
static void nfs4_destroy_server(struct nfs_server *server)
{
nfs_server_return_all_delegations(server);
int ret;
struct inode *inode = file->f_path.dentry->d_inode;
- ret = filemap_write_and_wait_range(inode->i_mapping, start, end);
- if (ret != 0)
- goto out;
- mutex_lock(&inode->i_mutex);
- ret = nfs_file_fsync_commit(file, start, end, datasync);
- if (!ret && !datasync)
- /* application has asked for meta-data sync */
- ret = pnfs_layoutcommit_inode(inode, true);
- mutex_unlock(&inode->i_mutex);
-out:
+ do {
+ ret = filemap_write_and_wait_range(inode->i_mapping, start, end);
+ if (ret != 0)
+ break;
+ mutex_lock(&inode->i_mutex);
+ ret = nfs_file_fsync_commit(file, start, end, datasync);
+ if (!ret && !datasync)
+ /* application has asked for meta-data sync */
+ ret = pnfs_layoutcommit_inode(inode, true);
+ mutex_unlock(&inode->i_mutex);
+ /*
+ * If nfs_file_fsync_commit detected a server reboot, then
+ * resend all dirty pages that might have been covered by
+ * the NFS_CONTEXT_RESEND_WRITES flag
+ */
+ start = 0;
+ end = LLONG_MAX;
+ } while (ret == -EAGAIN);
+
return ret;
}
* i/o and all i/o waiting on the slot table to the MDS until
* layout is destroyed and a new valid layout is obtained.
*/
- set_bit(NFS_LAYOUT_INVALID,
- &NFS_I(inode)->layout->plh_flags);
pnfs_destroy_layout(NFS_I(inode));
rpc_wake_up(&tbl->slot_tbl_waitq);
goto reset;
case -EPIPE:
dprintk("%s DS connection error %d\n", __func__,
task->tk_status);
- filelayout_mark_devid_invalid(devid);
+ nfs4_mark_deviceid_unavailable(devid);
clear_bit(NFS_INO_LAYOUTCOMMIT, &NFS_I(inode)->flags);
_pnfs_return_layout(inode);
rpc_wake_up(&tbl->slot_tbl_waitq);
(unsigned long) NFS_I(hdr->inode)->layout->plh_lwb);
}
+bool
+filelayout_test_devid_unavailable(struct nfs4_deviceid_node *node)
+{
+ return filelayout_test_devid_invalid(node) ||
+ nfs4_test_deviceid_unavailable(node);
+}
+
+static bool
+filelayout_reset_to_mds(struct pnfs_layout_segment *lseg)
+{
+ struct nfs4_deviceid_node *node = FILELAYOUT_DEVID_NODE(lseg);
+
+ return filelayout_test_devid_unavailable(node);
+}
+
/*
* Call ops for the async read/write cases
* In the case of dense layouts, the offset needs to be reset to its
struct nfs_commit_data *data = calldata;
data->completion_ops->completion(data);
- put_lseg(data->lseg);
+ pnfs_put_lseg(data->lseg);
nfs_put_client(data->ds_clp);
nfs_commitdata_release(data);
}
d = nfs4_find_get_deviceid(NFS_SERVER(lo->plh_inode)->pnfs_curr_ld,
NFS_SERVER(lo->plh_inode)->nfs_client, id);
if (d == NULL) {
- dsaddr = get_device_info(lo->plh_inode, id, gfp_flags);
+ dsaddr = filelayout_get_device_info(lo->plh_inode, id, gfp_flags);
if (dsaddr == NULL)
goto out;
} else
dsaddr = container_of(d, struct nfs4_file_layout_dsaddr, id_node);
- /* Found deviceid is being reaped */
- if (test_bit(NFS_DEVICEID_INVALID, &dsaddr->id_node.flags))
+ /* Found deviceid is unavailable */
+ if (filelayout_test_devid_unavailable(&dsaddr->id_node))
goto out_put;
fl->dsaddr = dsaddr;
nfs_init_cinfo(&cinfo, pgio->pg_inode, pgio->pg_dreq);
status = filelayout_alloc_commit_info(pgio->pg_lseg, &cinfo, GFP_NOFS);
if (status < 0) {
- put_lseg(pgio->pg_lseg);
+ pnfs_put_lseg(pgio->pg_lseg);
pgio->pg_lseg = NULL;
goto out_mds;
}
out:
nfs_request_remove_commit_list(req, cinfo);
spin_unlock(cinfo->lock);
- put_lseg(freeme);
+ pnfs_put_lseg(freeme);
}
static struct list_head *
* off due to a rewrite, in which case it will be done in
* filelayout_clear_request_commit
*/
- buckets[i].wlseg = get_lseg(lseg);
+ buckets[i].wlseg = pnfs_get_lseg(lseg);
}
set_bit(PG_COMMIT_TO_DS, &req->wb_flags);
cinfo->ds->nwritten++;
if (list_empty(src))
bucket->wlseg = NULL;
else
- get_lseg(bucket->clseg);
+ pnfs_get_lseg(bucket->clseg);
}
return ret;
}
/* NOTE cinfo->lock is NOT held, relying on fact that this is
* only called on single thread per dreq.
- * Can't take the lock because need to do put_lseg
+ * Can't take the lock because need to do pnfs_put_lseg
*/
for (i = 0, b = cinfo->ds->buckets; i < cinfo->ds->nbuckets; i++, b++) {
if (transfer_commit_list(&b->written, dst, cinfo, 0)) {
BUG_ON(!list_empty(&b->written));
- put_lseg(b->wlseg);
+ pnfs_put_lseg(b->wlseg);
b->wlseg = NULL;
}
}
if (list_empty(&bucket->committing))
continue;
nfs_retry_commit(&bucket->committing, bucket->clseg, cinfo);
- put_lseg(bucket->clseg);
+ pnfs_put_lseg(bucket->clseg);
bucket->clseg = NULL;
}
/* Caller will clean up entries put on list */
set_bit(NFS_DEVICEID_INVALID, &node->flags);
}
-static inline bool
-filelayout_test_layout_invalid(struct pnfs_layout_hdr *lo)
-{
- return test_bit(NFS_LAYOUT_INVALID, &lo->plh_flags);
-}
-
static inline bool
filelayout_test_devid_invalid(struct nfs4_deviceid_node *node)
{
return test_bit(NFS_DEVICEID_INVALID, &node->flags);
}
-static inline bool
-filelayout_reset_to_mds(struct pnfs_layout_segment *lseg)
-{
- return filelayout_test_devid_invalid(FILELAYOUT_DEVID_NODE(lseg)) ||
- filelayout_test_layout_invalid(lseg->pls_layout);
-}
+extern bool
+filelayout_test_devid_unavailable(struct nfs4_deviceid_node *node);
extern struct nfs_fh *
nfs4_fl_select_ds_fh(struct pnfs_layout_segment *lseg, u32 j);
extern void nfs4_fl_put_deviceid(struct nfs4_file_layout_dsaddr *dsaddr);
extern void nfs4_fl_free_deviceid(struct nfs4_file_layout_dsaddr *dsaddr);
struct nfs4_file_layout_dsaddr *
-get_device_info(struct inode *inode, struct nfs4_deviceid *dev_id, gfp_t gfp_flags);
+filelayout_get_device_info(struct inode *inode, struct nfs4_deviceid *dev_id, gfp_t gfp_flags);
void nfs4_ds_disconnect(struct nfs_client *clp);
#endif /* FS_NFS_NFS4FILELAYOUT_H */
* of available devices, and return it.
*/
struct nfs4_file_layout_dsaddr *
-get_device_info(struct inode *inode, struct nfs4_deviceid *dev_id, gfp_t gfp_flags)
+filelayout_get_device_info(struct inode *inode, struct nfs4_deviceid *dev_id, gfp_t gfp_flags)
{
struct pnfs_device *pdev = NULL;
u32 max_resp_sz;
struct nfs4_pnfs_ds *ds = dsaddr->ds_list[ds_idx];
struct nfs4_deviceid_node *devid = FILELAYOUT_DEVID_NODE(lseg);
- if (filelayout_test_devid_invalid(devid))
+ if (filelayout_test_devid_unavailable(devid))
return NULL;
if (ds == NULL) {
printk(KERN_ERR "NFS: %s: No data server for offset index %d\n",
__func__, ds_idx);
- goto mark_dev_invalid;
+ filelayout_mark_devid_invalid(devid);
+ return NULL;
}
if (!ds->ds_clp) {
int err;
err = nfs4_ds_connect(s, ds);
- if (err)
- goto mark_dev_invalid;
+ if (err) {
+ nfs4_mark_deviceid_unavailable(devid);
+ return NULL;
+ }
}
return ds;
-
-mark_dev_invalid:
- filelayout_mark_devid_invalid(devid);
- return NULL;
}
module_param(dataserver_retrans, uint, 0644);
struct rpc_clnt *nfs4_create_sec_client(struct rpc_clnt *clnt, struct inode *inode,
struct qstr *name)
{
- struct rpc_clnt *clone;
- struct rpc_auth *auth;
rpc_authflavor_t flavor;
flavor = nfs4_negotiate_security(inode, name);
if ((int)flavor < 0)
- return ERR_PTR(flavor);
+ return ERR_PTR((int)flavor);
- clone = rpc_clone_client(clnt);
- if (IS_ERR(clone))
- return clone;
-
- auth = rpcauth_create(flavor, clone);
- if (!auth) {
- rpc_shutdown_client(clone);
- clone = ERR_PTR(-EIO);
- }
-
- return clone;
+ return rpc_clone_client_set_auth(clnt, flavor);
}
static struct vfsmount *try_location(struct nfs_clone_mount *mountdata,
return -EACCES;
case -NFS4ERR_MINOR_VERS_MISMATCH:
return -EPROTONOSUPPORT;
+ case -NFS4ERR_ACCESS:
+ return -EACCES;
default:
dprintk("%s could not handle NFSv4 error %d\n",
__func__, -err);
FATTR4_WORD2_MDSTHRESHOLD
};
+static const u32 nfs4_open_noattr_bitmap[3] = {
+ FATTR4_WORD0_TYPE
+ | FATTR4_WORD0_CHANGE
+ | FATTR4_WORD0_FILEID,
+};
+
const u32 nfs4_statfs_bitmap[2] = {
FATTR4_WORD0_FILES_AVAIL
| FATTR4_WORD0_FILES_FREE
p->o_res.seqid = p->o_arg.seqid;
p->c_res.seqid = p->c_arg.seqid;
p->o_res.server = p->o_arg.server;
+ p->o_res.access_request = p->o_arg.access;
nfs_fattr_init(&p->f_attr);
nfs_fattr_init_names(&p->f_attr, &p->owner_name, &p->group_name);
}
p->o_arg.fh = NFS_FH(dir);
p->o_arg.open_flags = flags;
p->o_arg.fmode = fmode & (FMODE_READ|FMODE_WRITE);
+ /* don't put an ACCESS op in OPEN compound if O_EXCL, because ACCESS
+ * will return permission denied for all bits until close */
+ if (!(flags & O_EXCL)) {
+ /* ask server to check for all possible rights as results
+ * are cached */
+ p->o_arg.access = NFS4_ACCESS_READ | NFS4_ACCESS_MODIFY |
+ NFS4_ACCESS_EXTEND | NFS4_ACCESS_EXECUTE;
+ }
p->o_arg.clientid = server->nfs_client->cl_clientid;
p->o_arg.id.create_time = ktime_to_ns(sp->so_seqid.create_time);
p->o_arg.id.uniquifier = sp->so_seqid.owner_id;
return state;
}
-static struct nfs4_state *nfs4_opendata_to_nfs4_state(struct nfs4_opendata *data)
+static void
+nfs4_opendata_check_deleg(struct nfs4_opendata *data, struct nfs4_state *state)
+{
+ struct nfs_client *clp = NFS_SERVER(state->inode)->nfs_client;
+ struct nfs_delegation *delegation;
+ int delegation_flags = 0;
+
+ rcu_read_lock();
+ delegation = rcu_dereference(NFS_I(state->inode)->delegation);
+ if (delegation)
+ delegation_flags = delegation->flags;
+ rcu_read_unlock();
+ if (data->o_arg.claim == NFS4_OPEN_CLAIM_DELEGATE_CUR) {
+ pr_err_ratelimited("NFS: Broken NFSv4 server %s is "
+ "returning a delegation for "
+ "OPEN(CLAIM_DELEGATE_CUR)\n",
+ clp->cl_hostname);
+ } else if ((delegation_flags & 1UL<<NFS_DELEGATION_NEED_RECLAIM) == 0)
+ nfs_inode_set_delegation(state->inode,
+ data->owner->so_cred,
+ &data->o_res);
+ else
+ nfs_inode_reclaim_delegation(state->inode,
+ data->owner->so_cred,
+ &data->o_res);
+}
+
+/*
+ * Check the inode attributes against the CLAIM_PREVIOUS returned attributes
+ * and update the nfs4_state.
+ */
+static struct nfs4_state *
+_nfs4_opendata_reclaim_to_nfs4_state(struct nfs4_opendata *data)
+{
+ struct inode *inode = data->state->inode;
+ struct nfs4_state *state = data->state;
+ int ret;
+
+ if (!data->rpc_done) {
+ ret = data->rpc_status;
+ goto err;
+ }
+
+ ret = -ESTALE;
+ if (!(data->f_attr.valid & NFS_ATTR_FATTR_TYPE) ||
+ !(data->f_attr.valid & NFS_ATTR_FATTR_FILEID) ||
+ !(data->f_attr.valid & NFS_ATTR_FATTR_CHANGE))
+ goto err;
+
+ ret = -ENOMEM;
+ state = nfs4_get_open_state(inode, data->owner);
+ if (state == NULL)
+ goto err;
+
+ ret = nfs_refresh_inode(inode, &data->f_attr);
+ if (ret)
+ goto err;
+
+ if (data->o_res.delegation_type != 0)
+ nfs4_opendata_check_deleg(data, state);
+ update_open_stateid(state, &data->o_res.stateid, NULL,
+ data->o_arg.fmode);
+
+ return state;
+err:
+ return ERR_PTR(ret);
+
+}
+
+static struct nfs4_state *
+_nfs4_opendata_to_nfs4_state(struct nfs4_opendata *data)
{
struct inode *inode;
struct nfs4_state *state = NULL;
- struct nfs_delegation *delegation;
int ret;
if (!data->rpc_done) {
state = nfs4_get_open_state(inode, data->owner);
if (state == NULL)
goto err_put_inode;
- if (data->o_res.delegation_type != 0) {
- struct nfs_client *clp = NFS_SERVER(inode)->nfs_client;
- int delegation_flags = 0;
-
- rcu_read_lock();
- delegation = rcu_dereference(NFS_I(inode)->delegation);
- if (delegation)
- delegation_flags = delegation->flags;
- rcu_read_unlock();
- if (data->o_arg.claim == NFS4_OPEN_CLAIM_DELEGATE_CUR) {
- pr_err_ratelimited("NFS: Broken NFSv4 server %s is "
- "returning a delegation for "
- "OPEN(CLAIM_DELEGATE_CUR)\n",
- clp->cl_hostname);
- } else if ((delegation_flags & 1UL<<NFS_DELEGATION_NEED_RECLAIM) == 0)
- nfs_inode_set_delegation(state->inode,
- data->owner->so_cred,
- &data->o_res);
- else
- nfs_inode_reclaim_delegation(state->inode,
- data->owner->so_cred,
- &data->o_res);
- }
-
+ if (data->o_res.delegation_type != 0)
+ nfs4_opendata_check_deleg(data, state);
update_open_stateid(state, &data->o_res.stateid, NULL,
data->o_arg.fmode);
iput(inode);
return ERR_PTR(ret);
}
+static struct nfs4_state *
+nfs4_opendata_to_nfs4_state(struct nfs4_opendata *data)
+{
+ if (data->o_arg.claim == NFS4_OPEN_CLAIM_PREVIOUS)
+ return _nfs4_opendata_reclaim_to_nfs4_state(data);
+ return _nfs4_opendata_to_nfs4_state(data);
+}
+
static struct nfs_open_context *nfs4_state_find_open_context(struct nfs4_state *state)
{
struct nfs_inode *nfsi = NFS_I(state->inode);
data->o_arg.clientid = sp->so_server->nfs_client->cl_clientid;
if (data->o_arg.claim == NFS4_OPEN_CLAIM_PREVIOUS) {
task->tk_msg.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_OPEN_NOATTR];
+ data->o_arg.open_bitmap = &nfs4_open_noattr_bitmap[0];
nfs_copy_fh(&data->o_res.fh, data->o_arg.fh);
}
data->timestamp = jiffies;
return;
if (task->tk_status == 0) {
- switch (data->o_res.f_attr->mode & S_IFMT) {
+ if (data->o_res.f_attr->valid & NFS_ATTR_FATTR_TYPE) {
+ switch (data->o_res.f_attr->mode & S_IFMT) {
case S_IFREG:
break;
case S_IFLNK:
break;
default:
data->rpc_status = -ENOTDIR;
+ }
}
renew_lease(data->o_res.server, data->timestamp);
if (!(data->o_res.rflags & NFS4_OPEN_RESULT_CONFIRM))
return status;
}
+static int nfs4_opendata_access(struct rpc_cred *cred,
+ struct nfs4_opendata *opendata,
+ struct nfs4_state *state, fmode_t fmode)
+{
+ struct nfs_access_entry cache;
+ u32 mask;
+
+ /* access call failed or for some reason the server doesn't
+ * support any access modes -- defer access call until later */
+ if (opendata->o_res.access_supported == 0)
+ return 0;
+
+ mask = 0;
+ /* don't check MAY_WRITE - a newly created file may not have
+ * write mode bits, but POSIX allows the creating process to write */
+ if (fmode & FMODE_READ)
+ mask |= MAY_READ;
+ if (fmode & FMODE_EXEC)
+ mask |= MAY_EXEC;
+
+ cache.cred = cred;
+ cache.jiffies = jiffies;
+ nfs_access_set_mask(&cache, opendata->o_res.access_result);
+ nfs_access_add_cache(state->inode, &cache);
+
+ if ((mask & ~cache.mask & (MAY_READ | MAY_EXEC)) == 0)
+ return 0;
+
+ /* even though OPEN succeeded, access is denied. Close the file */
+ nfs4_close_state(state, fmode);
+ return -NFS4ERR_ACCESS;
+}
+
/*
* Note: On error, nfs4_proc_open will free the struct nfs4_opendata
*/
* informs us the stateid is unrecognized. */
if (status != -NFS4ERR_BAD_STATEID)
nfs41_free_stateid(server, stateid);
+ nfs_remove_bad_delegation(state->inode);
+ write_seqlock(&state->seqlock);
+ nfs4_stateid_copy(&state->stateid, &state->open_stateid);
+ write_sequnlock(&state->seqlock);
clear_bit(NFS_DELEGATED_STATE, &state->flags);
}
}
static int nfs41_check_open_stateid(struct nfs4_state *state)
{
struct nfs_server *server = NFS_SERVER(state->inode);
- nfs4_stateid *stateid = &state->stateid;
+ nfs4_stateid *stateid = &state->open_stateid;
int status;
/* If a state reset has been done, test_stateid is unneeded */
if (server->caps & NFS_CAP_POSIX_LOCK)
set_bit(NFS_STATE_POSIX_LOCKS, &state->flags);
+ status = nfs4_opendata_access(cred, opendata, state, fmode);
+ if (status != 0)
+ goto err_opendata_put;
+
if (opendata->o_arg.open_flags & O_EXCL) {
nfs4_exclusive_attrset(opendata, sattr);
struct nfs4_state *res;
int status;
- fmode &= FMODE_READ|FMODE_WRITE;
+ fmode &= FMODE_READ|FMODE_WRITE|FMODE_EXEC;
do {
status = _nfs4_do_open(dir, dentry, fmode, flags, sattr, cred,
&res, ctx_th);
nfs_fattr_init(fattr);
if (state != NULL) {
+ struct nfs_lockowner lockowner = {
+ .l_owner = current->files,
+ .l_pid = current->tgid,
+ };
nfs4_select_rw_stateid(&arg.stateid, state, FMODE_WRITE,
- current->files, current->tgid);
+ &lockowner);
} else if (nfs4_copy_delegation_stateid(&arg.stateid, inode,
FMODE_WRITE)) {
/* Use that stateid */
{
struct nfs4_closedata *calldata = data;
struct nfs4_state *state = calldata->state;
+ struct inode *inode = calldata->inode;
int call_close = 0;
dprintk("%s: begin!\n", __func__);
if (calldata->arg.fmode == 0) {
task->tk_msg.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_CLOSE];
if (calldata->roc &&
- pnfs_roc_drain(calldata->inode, &calldata->roc_barrier)) {
- rpc_sleep_on(&NFS_SERVER(calldata->inode)->roc_rpcwaitq,
- task, NULL);
+ pnfs_roc_drain(inode, &calldata->roc_barrier, task))
goto out;
- }
}
nfs_fattr_init(calldata->res.fattr);
calldata->timestamp = jiffies;
- if (nfs4_setup_sequence(NFS_SERVER(calldata->inode),
+ if (nfs4_setup_sequence(NFS_SERVER(inode),
&calldata->arg.seq_args,
&calldata->res.seq_res,
task))
*
* NOTE: Caller must be holding the sp->so_owner semaphore!
*/
-int nfs4_do_close(struct nfs4_state *state, gfp_t gfp_mask, int wait, bool roc)
+int nfs4_do_close(struct nfs4_state *state, gfp_t gfp_mask, int wait)
{
struct nfs_server *server = NFS_SERVER(state->inode);
struct nfs4_closedata *calldata;
calldata->res.fattr = &calldata->fattr;
calldata->res.seqid = calldata->arg.seqid;
calldata->res.server = server;
- calldata->roc = roc;
+ calldata->roc = pnfs_roc(state->inode);
nfs_sb_active(calldata->inode->i_sb);
msg.rpc_argp = &calldata->arg;
out_free_calldata:
kfree(calldata);
out:
- if (roc)
- pnfs_roc_release(state->inode);
nfs4_put_open_state(state);
nfs4_put_state_owner(sp);
return status;
int ret;
auth = rpcauth_create(flavor, server->client);
- if (!auth) {
+ if (IS_ERR(auth)) {
ret = -EIO;
goto out;
}
status = nfs4_call_sync(server->client, server, &msg, &args.seq_args, &res.seq_res, 0);
if (!status) {
- entry->mask = 0;
- if (res.access & NFS4_ACCESS_READ)
- entry->mask |= MAY_READ;
- if (res.access & (NFS4_ACCESS_MODIFY | NFS4_ACCESS_EXTEND | NFS4_ACCESS_DELETE))
- entry->mask |= MAY_WRITE;
- if (res.access & (NFS4_ACCESS_LOOKUP|NFS4_ACCESS_EXECUTE))
- entry->mask |= MAY_EXEC;
+ nfs_access_set_mask(entry, res.access);
nfs_refresh_inode(inode, res.fattr);
}
nfs_free_fattr(res.fattr);
nfs_fattr_init(fsinfo->fattr);
error = nfs4_do_fsinfo(server, fhandle, fsinfo);
- if (error == 0)
+ if (error == 0) {
+ /* block layout checks this! */
+ server->pnfs_blksize = fsinfo->blksize;
set_pnfs_layoutdriver(server, fhandle, fsinfo->layouttype);
+ }
return error;
}
memcpy(bootverf->data, verf, sizeof(bootverf->data));
}
+static unsigned int
+nfs4_init_nonuniform_client_string(const struct nfs_client *clp,
+ char *buf, size_t len)
+{
+ unsigned int result;
+
+ rcu_read_lock();
+ result = scnprintf(buf, len, "Linux NFSv4.0 %s/%s %s",
+ clp->cl_ipaddr,
+ rpc_peeraddr2str(clp->cl_rpcclient,
+ RPC_DISPLAY_ADDR),
+ rpc_peeraddr2str(clp->cl_rpcclient,
+ RPC_DISPLAY_PROTO));
+ rcu_read_unlock();
+ return result;
+}
+
+static unsigned int
+nfs4_init_uniform_client_string(const struct nfs_client *clp,
+ char *buf, size_t len)
+{
+ char *nodename = clp->cl_rpcclient->cl_nodename;
+
+ if (nfs4_client_id_uniquifier[0] != '\0')
+ nodename = nfs4_client_id_uniquifier;
+ return scnprintf(buf, len, "Linux NFSv%u.%u %s",
+ clp->rpc_ops->version, clp->cl_minorversion,
+ nodename);
+}
+
/**
* nfs4_proc_setclientid - Negotiate client ID
* @clp: state data structure
/* nfs_client_id4 */
nfs4_init_boot_verifier(clp, &sc_verifier);
- rcu_read_lock();
- setclientid.sc_name_len = scnprintf(setclientid.sc_name,
- sizeof(setclientid.sc_name), "%s/%s %s",
- clp->cl_ipaddr,
- rpc_peeraddr2str(clp->cl_rpcclient,
- RPC_DISPLAY_ADDR),
- rpc_peeraddr2str(clp->cl_rpcclient,
- RPC_DISPLAY_PROTO));
+ if (test_bit(NFS_CS_MIGRATION, &clp->cl_flags))
+ setclientid.sc_name_len =
+ nfs4_init_uniform_client_string(clp,
+ setclientid.sc_name,
+ sizeof(setclientid.sc_name));
+ else
+ setclientid.sc_name_len =
+ nfs4_init_nonuniform_client_string(clp,
+ setclientid.sc_name,
+ sizeof(setclientid.sc_name));
/* cb_client4 */
+ rcu_read_lock();
setclientid.sc_netid_len = scnprintf(setclientid.sc_netid,
sizeof(setclientid.sc_netid),
rpc_peeraddr2str(clp->cl_rpcclient,
if (nfs_wait_on_sequence(calldata->arg.seqid, task) != 0)
return;
- if ((calldata->lsp->ls_flags & NFS_LOCK_INITIALIZED) == 0) {
+ if (test_bit(NFS_LOCK_INITIALIZED, &calldata->lsp->ls_flags) == 0) {
/* Note: exit _without_ running nfs4_locku_done */
task->tk_action = NULL;
return;
}
if (data->rpc_status == 0) {
nfs4_stateid_copy(&data->lsp->ls_stateid, &data->res.stateid);
- data->lsp->ls_flags |= NFS_LOCK_INITIALIZED;
+ set_bit(NFS_LOCK_INITIALIZED, &data->lsp->ls_flags);
renew_lease(NFS_SERVER(data->ctx->dentry->d_inode), data->timestamp);
}
out:
case -NFS4ERR_BAD_STATEID:
lsp->ls_seqid.flags &= ~NFS_SEQID_CONFIRMED;
if (new_lock_owner != 0 ||
- (lsp->ls_flags & NFS_LOCK_INITIALIZED) != 0)
+ test_bit(NFS_LOCK_INITIALIZED, &lsp->ls_flags) != 0)
nfs4_schedule_stateid_recovery(server, lsp->ls_state);
break;
case -NFS4ERR_STALE_STATEID:
struct nfs_server *server = NFS_SERVER(state->inode);
list_for_each_entry(lsp, &state->lock_states, ls_locks) {
- if (lsp->ls_flags & NFS_LOCK_INITIALIZED) {
+ if (test_bit(NFS_LOCK_INITIALIZED, &lsp->ls_flags)) {
status = nfs41_test_stateid(server, &lsp->ls_stateid);
if (status != NFS_OK) {
/* Free the stateid unless the server
if (status != -NFS4ERR_BAD_STATEID)
nfs41_free_stateid(server,
&lsp->ls_stateid);
- lsp->ls_flags &= ~NFS_LOCK_INITIALIZED;
+ clear_bit(NFS_LOCK_INITIALIZED, &lsp->ls_flags);
ret = status;
}
}
};
nfs4_init_boot_verifier(clp, &verifier);
- args.id_len = scnprintf(args.id, sizeof(args.id),
- "%s/%s",
- clp->cl_ipaddr,
- clp->cl_rpcclient->cl_nodename);
+ args.id_len = nfs4_init_uniform_client_string(clp, args.id,
+ sizeof(args.id));
dprintk("NFS call exchange_id auth=%s, '%.*s'\n",
clp->cl_rpcclient->cl_auth->au_ops->au_name,
args.id_len, args.id);
goto out;
if (clp->cl_exchange_flags == 0)
goto out;
+ if (clp->cl_preserve_clid)
+ goto out;
cred = nfs4_get_exchange_id_cred(clp);
ret = nfs4_proc_destroy_clientid(clp, cred);
if (cred)
static void nfs4_layoutget_done(struct rpc_task *task, void *calldata)
{
struct nfs4_layoutget *lgp = calldata;
- struct nfs_server *server = NFS_SERVER(lgp->args.inode);
+ struct inode *inode = lgp->args.inode;
+ struct nfs_server *server = NFS_SERVER(inode);
+ struct pnfs_layout_hdr *lo;
+ struct nfs4_state *state = NULL;
dprintk("--> %s\n", __func__);
if (!nfs4_sequence_done(task, &lgp->res.seq_res))
- return;
+ goto out;
switch (task->tk_status) {
case 0:
- break;
+ goto out;
case -NFS4ERR_LAYOUTTRYLATER:
case -NFS4ERR_RECALLCONFLICT:
task->tk_status = -NFS4ERR_DELAY;
- /* Fall through */
- default:
- if (nfs4_async_handle_error(task, server, NULL) == -EAGAIN) {
- rpc_restart_call_prepare(task);
- return;
+ break;
+ case -NFS4ERR_EXPIRED:
+ case -NFS4ERR_BAD_STATEID:
+ spin_lock(&inode->i_lock);
+ lo = NFS_I(inode)->layout;
+ if (!lo || list_empty(&lo->plh_segs)) {
+ spin_unlock(&inode->i_lock);
+ /* If the open stateid was bad, then recover it. */
+ state = lgp->args.ctx->state;
+ } else {
+ LIST_HEAD(head);
+
+ pnfs_mark_matching_lsegs_invalid(lo, &head, NULL);
+ spin_unlock(&inode->i_lock);
+ /* Mark the bad layout state as invalid, then
+ * retry using the open stateid. */
+ pnfs_free_lseg_list(&head);
}
}
+ if (nfs4_async_handle_error(task, server, state) == -EAGAIN)
+ rpc_restart_call_prepare(task);
+out:
dprintk("<-- %s\n", __func__);
}
.rpc_release = nfs4_layoutget_release,
};
-void nfs4_proc_layoutget(struct nfs4_layoutget *lgp, gfp_t gfp_flags)
+struct pnfs_layout_segment *
+nfs4_proc_layoutget(struct nfs4_layoutget *lgp, gfp_t gfp_flags)
{
struct nfs_server *server = NFS_SERVER(lgp->args.inode);
size_t max_pages = max_response_pages(server);
.callback_data = lgp,
.flags = RPC_TASK_ASYNC,
};
+ struct pnfs_layout_segment *lseg = NULL;
int status = 0;
dprintk("--> %s\n", __func__);
lgp->args.layout.pages = nfs4_alloc_pages(max_pages, gfp_flags);
if (!lgp->args.layout.pages) {
nfs4_layoutget_release(lgp);
- return;
+ return ERR_PTR(-ENOMEM);
}
lgp->args.layout.pglen = max_pages * PAGE_SIZE;
nfs41_init_sequence(&lgp->args.seq_args, &lgp->res.seq_res, 0);
task = rpc_run_task(&task_setup_data);
if (IS_ERR(task))
- return;
+ return ERR_CAST(task);
status = nfs4_wait_for_completion_rpc_task(task);
if (status == 0)
status = task->tk_status;
if (status == 0)
- status = pnfs_layout_process(lgp);
+ lseg = pnfs_layout_process(lgp);
rpc_put_task(task);
dprintk("<-- %s status=%d\n", __func__, status);
- return;
+ if (status)
+ return ERR_PTR(status);
+ return lseg;
}
static void
{
struct nfs4_layoutreturn *lrp = calldata;
struct nfs_server *server;
- struct pnfs_layout_hdr *lo = lrp->args.layout;
dprintk("--> %s\n", __func__);
rpc_restart_call_prepare(task);
return;
}
- spin_lock(&lo->plh_inode->i_lock);
- if (task->tk_status == 0 && lrp->res.lrs_present)
- pnfs_set_layout_stateid(lo, &lrp->res.stateid, true);
- lo->plh_block_lgets--;
- spin_unlock(&lo->plh_inode->i_lock);
dprintk("<-- %s\n", __func__);
}
static void nfs4_layoutreturn_release(void *calldata)
{
struct nfs4_layoutreturn *lrp = calldata;
+ struct pnfs_layout_hdr *lo = lrp->args.layout;
dprintk("--> %s\n", __func__);
- put_layout_hdr(lrp->args.layout);
+ spin_lock(&lo->plh_inode->i_lock);
+ if (lrp->res.lrs_present)
+ pnfs_set_layout_stateid(lo, &lrp->res.stateid, true);
+ lo->plh_block_lgets--;
+ spin_unlock(&lo->plh_inode->i_lock);
+ pnfs_put_layout_hdr(lrp->args.layout);
kfree(calldata);
dprintk("<-- %s\n", __func__);
}
list_del_init(&lseg->pls_lc_list);
if (test_and_clear_bit(NFS_LSEG_LAYOUTCOMMIT,
&lseg->pls_flags))
- put_lseg(lseg);
+ pnfs_put_lseg(lseg);
}
clear_bit_unlock(NFS_INO_LAYOUTCOMMITTING, bitlock);
.recover_lock = nfs4_lock_reclaim,
.establish_clid = nfs4_init_clientid,
.get_clid_cred = nfs4_get_setclientid_cred,
+ .detect_trunking = nfs40_discover_server_trunking,
};
#if defined(CONFIG_NFS_V4_1)
.establish_clid = nfs41_init_clientid,
.get_clid_cred = nfs4_get_exchange_id_cred,
.reclaim_complete = nfs41_proc_reclaim_complete,
+ .detect_trunking = nfs41_discover_server_trunking,
};
#endif /* CONFIG_NFS_V4_1 */
#include <linux/bitops.h>
#include <linux/jiffies.h>
+#include <linux/sunrpc/clnt.h>
+
#include "nfs4_fs.h"
#include "callback.h"
#include "delegation.h"
#include "internal.h"
#include "pnfs.h"
+#include "netns.h"
#define NFSDBG_FACILITY NFSDBG_STATE
#define OPENOWNER_POOL_SIZE 8
const nfs4_stateid zero_stateid;
-
+static DEFINE_MUTEX(nfs_clid_init_mutex);
static LIST_HEAD(nfs4_clientid_list);
int nfs4_init_clientid(struct nfs_client *clp, struct rpc_cred *cred)
};
unsigned short port;
int status;
+ struct nfs_net *nn = net_generic(clp->cl_net, nfs_net_id);
if (test_bit(NFS4CLNT_LEASE_CONFIRM, &clp->cl_state))
goto do_confirm;
- port = nfs_callback_tcpport;
+ port = nn->nfs_callback_tcpport;
if (clp->cl_addr.ss_family == AF_INET6)
- port = nfs_callback_tcpport6;
+ port = nn->nfs_callback_tcpport6;
status = nfs4_proc_setclientid(clp, NFS4_CALLBACK, port, cred, &clid);
if (status != 0)
return status;
}
+/**
+ * nfs40_discover_server_trunking - Detect server IP address trunking (mv0)
+ *
+ * @clp: nfs_client under test
+ * @result: OUT: found nfs_client, or clp
+ * @cred: credential to use for trunking test
+ *
+ * Returns zero, a negative errno, or a negative NFS4ERR status.
+ * If zero is returned, an nfs_client pointer is planted in
+ * "result".
+ *
+ * Note: The returned client may not yet be marked ready.
+ */
+int nfs40_discover_server_trunking(struct nfs_client *clp,
+ struct nfs_client **result,
+ struct rpc_cred *cred)
+{
+ struct nfs4_setclientid_res clid = {
+ .clientid = clp->cl_clientid,
+ .confirm = clp->cl_confirm,
+ };
+ struct nfs_net *nn = net_generic(clp->cl_net, nfs_net_id);
+ unsigned short port;
+ int status;
+
+ port = nn->nfs_callback_tcpport;
+ if (clp->cl_addr.ss_family == AF_INET6)
+ port = nn->nfs_callback_tcpport6;
+
+ status = nfs4_proc_setclientid(clp, NFS4_CALLBACK, port, cred, &clid);
+ if (status != 0)
+ goto out;
+ clp->cl_clientid = clid.clientid;
+ clp->cl_confirm = clid.confirm;
+
+ status = nfs40_walk_client_list(clp, result, cred);
+ switch (status) {
+ case -NFS4ERR_STALE_CLIENTID:
+ set_bit(NFS4CLNT_LEASE_CONFIRM, &clp->cl_state);
+ case 0:
+ /* Sustain the lease, even if it's empty. If the clientid4
+ * goes stale it's of no use for trunking discovery. */
+ nfs4_schedule_state_renewal(*result);
+ break;
+ }
+
+out:
+ return status;
+}
+
struct rpc_cred *nfs4_get_machine_cred_locked(struct nfs_client *clp)
{
struct rpc_cred *cred = NULL;
return status;
}
+/**
+ * nfs41_discover_server_trunking - Detect server IP address trunking (mv1)
+ *
+ * @clp: nfs_client under test
+ * @result: OUT: found nfs_client, or clp
+ * @cred: credential to use for trunking test
+ *
+ * Returns NFS4_OK, a negative errno, or a negative NFS4ERR status.
+ * If NFS4_OK is returned, an nfs_client pointer is planted in
+ * "result".
+ *
+ * Note: The returned client may not yet be marked ready.
+ */
+int nfs41_discover_server_trunking(struct nfs_client *clp,
+ struct nfs_client **result,
+ struct rpc_cred *cred)
+{
+ int status;
+
+ status = nfs4_proc_exchange_id(clp, cred);
+ if (status != NFS4_OK)
+ return status;
+ set_bit(NFS4CLNT_LEASE_CONFIRM, &clp->cl_state);
+
+ return nfs41_walk_client_list(clp, result, cred);
+}
+
struct rpc_cred *nfs4_get_exchange_id_cred(struct nfs_client *clp)
{
struct rpc_cred *cred;
if (!call_close) {
nfs4_put_open_state(state);
nfs4_put_state_owner(owner);
- } else {
- bool roc = pnfs_roc(state->inode);
-
- nfs4_do_close(state, gfp_mask, wait, roc);
- }
+ } else
+ nfs4_do_close(state, gfp_mask, wait);
}
void nfs4_close_state(struct nfs4_state *state, fmode_t fmode)
if (list_empty(&state->lock_states))
clear_bit(LK_STATE_IN_USE, &state->flags);
spin_unlock(&state->state_lock);
- if (lsp->ls_flags & NFS_LOCK_INITIALIZED) {
+ if (test_bit(NFS_LOCK_INITIALIZED, &lsp->ls_flags)) {
if (nfs4_release_lockowner(lsp) == 0)
return;
}
}
static bool nfs4_copy_lock_stateid(nfs4_stateid *dst, struct nfs4_state *state,
- fl_owner_t fl_owner, pid_t fl_pid)
+ const struct nfs_lockowner *lockowner)
{
struct nfs4_lock_state *lsp;
+ fl_owner_t fl_owner;
+ pid_t fl_pid;
bool ret = false;
+
+ if (lockowner == NULL)
+ goto out;
+
if (test_bit(LK_STATE_IN_USE, &state->flags) == 0)
goto out;
+ fl_owner = lockowner->l_owner;
+ fl_pid = lockowner->l_pid;
spin_lock(&state->state_lock);
lsp = __nfs4_find_lock_state(state, fl_owner, fl_pid, NFS4_ANY_LOCK_TYPE);
- if (lsp != NULL && (lsp->ls_flags & NFS_LOCK_INITIALIZED) != 0) {
+ if (lsp != NULL && test_bit(NFS_LOCK_INITIALIZED, &lsp->ls_flags) != 0) {
nfs4_stateid_copy(dst, &lsp->ls_stateid);
ret = true;
}
* requests.
*/
void nfs4_select_rw_stateid(nfs4_stateid *dst, struct nfs4_state *state,
- fmode_t fmode, fl_owner_t fl_owner, pid_t fl_pid)
+ fmode_t fmode, const struct nfs_lockowner *lockowner)
{
if (nfs4_copy_delegation_stateid(dst, state->inode, fmode))
return;
- if (nfs4_copy_lock_stateid(dst, state, fl_owner, fl_pid))
+ if (nfs4_copy_lock_stateid(dst, state, lockowner))
return;
nfs4_copy_open_stateid(dst, state);
}
if (status >= 0) {
spin_lock(&state->state_lock);
list_for_each_entry(lock, &state->lock_states, ls_locks) {
- if (!(lock->ls_flags & NFS_LOCK_INITIALIZED))
+ if (!test_bit(NFS_LOCK_INITIALIZED, &lock->ls_flags))
pr_warn_ratelimited("NFS: "
"%s: Lock reclaim "
"failed!\n", __func__);
spin_lock(&state->state_lock);
list_for_each_entry(lock, &state->lock_states, ls_locks) {
lock->ls_seqid.flags = 0;
- lock->ls_flags &= ~NFS_LOCK_INITIALIZED;
+ clear_bit(NFS_LOCK_INITIALIZED, &lock->ls_flags);
}
spin_unlock(&state->state_lock);
}
return nfs4_recovery_handle_error(clp, status);
}
-/* Set NFS4CLNT_LEASE_EXPIRED for all v4.0 errors and for recoverable errors
- * on EXCHANGE_ID for v4.1
+/* Set NFS4CLNT_LEASE_EXPIRED and reclaim reboot state for all v4.0 errors
+ * and for recoverable errors on EXCHANGE_ID for v4.1
*/
static int nfs4_handle_reclaim_lease_error(struct nfs_client *clp, int status)
{
return -ESERVERFAULT;
/* Lease confirmation error: retry after purging the lease */
ssleep(1);
+ clear_bit(NFS4CLNT_LEASE_CONFIRM, &clp->cl_state);
+ break;
case -NFS4ERR_STALE_CLIENTID:
clear_bit(NFS4CLNT_LEASE_CONFIRM, &clp->cl_state);
+ nfs4_state_clear_reclaim_reboot(clp);
+ nfs4_state_start_reclaim_reboot(clp);
break;
case -NFS4ERR_CLID_INUSE:
pr_err("NFS: Server %s reports our clientid is in use\n",
return 0;
}
+/**
+ * nfs4_discover_server_trunking - Detect server IP address trunking
+ *
+ * @clp: nfs_client under test
+ * @result: OUT: found nfs_client, or clp
+ *
+ * Returns zero or a negative errno. If zero is returned,
+ * an nfs_client pointer is planted in "result".
+ *
+ * Note: since we are invoked in process context, and
+ * not from inside the state manager, we cannot use
+ * nfs4_handle_reclaim_lease_error().
+ */
+int nfs4_discover_server_trunking(struct nfs_client *clp,
+ struct nfs_client **result)
+{
+ const struct nfs4_state_recovery_ops *ops =
+ clp->cl_mvops->reboot_recovery_ops;
+ rpc_authflavor_t *flavors, flav, save;
+ struct rpc_clnt *clnt;
+ struct rpc_cred *cred;
+ int i, len, status;
+
+ dprintk("NFS: %s: testing '%s'\n", __func__, clp->cl_hostname);
+
+ len = NFS_MAX_SECFLAVORS;
+ flavors = kcalloc(len, sizeof(*flavors), GFP_KERNEL);
+ if (flavors == NULL) {
+ status = -ENOMEM;
+ goto out;
+ }
+ len = rpcauth_list_flavors(flavors, len);
+ if (len < 0) {
+ status = len;
+ goto out_free;
+ }
+ clnt = clp->cl_rpcclient;
+ save = clnt->cl_auth->au_flavor;
+ i = 0;
+
+ mutex_lock(&nfs_clid_init_mutex);
+ status = -ENOENT;
+again:
+ cred = ops->get_clid_cred(clp);
+ if (cred == NULL)
+ goto out_unlock;
+
+ status = ops->detect_trunking(clp, result, cred);
+ put_rpccred(cred);
+ switch (status) {
+ case 0:
+ break;
+
+ case -EACCES:
+ if (clp->cl_machine_cred == NULL)
+ break;
+ /* Handle case where the user hasn't set up machine creds */
+ nfs4_clear_machine_cred(clp);
+ case -NFS4ERR_DELAY:
+ case -ETIMEDOUT:
+ case -EAGAIN:
+ ssleep(1);
+ dprintk("NFS: %s after status %d, retrying\n",
+ __func__, status);
+ goto again;
+
+ case -NFS4ERR_CLID_INUSE:
+ case -NFS4ERR_WRONGSEC:
+ status = -EPERM;
+ if (i >= len)
+ break;
+
+ flav = flavors[i++];
+ if (flav == save)
+ flav = flavors[i++];
+ clnt = rpc_clone_client_set_auth(clnt, flav);
+ if (IS_ERR(clnt)) {
+ status = PTR_ERR(clnt);
+ break;
+ }
+ clp->cl_rpcclient = clnt;
+ goto again;
+
+ case -NFS4ERR_MINOR_VERS_MISMATCH:
+ status = -EPROTONOSUPPORT;
+ break;
+
+ case -EKEYEXPIRED:
+ nfs4_warn_keyexpired(clp->cl_hostname);
+ case -NFS4ERR_NOT_SAME: /* FixMe: implement recovery
+ * in nfs4_exchange_id */
+ status = -EKEYEXPIRED;
+ }
+
+out_unlock:
+ mutex_unlock(&nfs_clid_init_mutex);
+out_free:
+ kfree(flavors);
+out:
+ dprintk("NFS: %s: status = %d\n", __func__, status);
+ return status;
+}
+
#ifdef CONFIG_NFS_V4_1
void nfs4_schedule_session_recovery(struct nfs4_session *session, int err)
{
pr_warn_ratelimited("NFS: state manager%s%s failed on NFSv4 server %s"
" with error %d\n", section_sep, section,
clp->cl_hostname, -status);
+ ssleep(1);
nfs4_end_drain_session(clp);
nfs4_clear_state_manager_bit(clp);
}
#include <linux/nfs_idmap.h>
#include <linux/nfs_fs.h>
+#include "nfs4_fs.h"
#include "callback.h"
static const int nfs_set_port_min = 0;
encode_sequence_maxsz + \
encode_putfh_maxsz + \
encode_open_maxsz + \
+ encode_access_maxsz + \
encode_getfh_maxsz + \
encode_getattr_maxsz)
#define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \
decode_sequence_maxsz + \
decode_putfh_maxsz + \
decode_open_maxsz + \
+ decode_access_maxsz + \
decode_getfh_maxsz + \
decode_getattr_maxsz)
#define NFS4_enc_open_confirm_sz \
encode_sequence_maxsz + \
encode_putfh_maxsz + \
encode_open_maxsz + \
+ encode_access_maxsz + \
encode_getattr_maxsz)
#define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \
decode_sequence_maxsz + \
decode_putfh_maxsz + \
decode_open_maxsz + \
+ decode_access_maxsz + \
decode_getattr_maxsz)
#define NFS4_enc_open_downgrade_sz \
(compound_encode_hdr_maxsz + \
nfs4_stateid stateid;
if (ctx->state != NULL) {
+ const struct nfs_lockowner *lockowner = NULL;
+
+ if (l_ctx != NULL)
+ lockowner = &l_ctx->lockowner;
nfs4_select_rw_stateid(&stateid, ctx->state,
- fmode, l_ctx->lockowner, l_ctx->pid);
+ fmode, lockowner);
if (zero_seqid)
stateid.seqid = 0;
encode_nfs4_stateid(xdr, &stateid);
encode_putfh(xdr, args->fh, &hdr);
encode_open(xdr, args, &hdr);
encode_getfh(xdr, &hdr);
+ if (args->access)
+ encode_access(xdr, args->access, &hdr);
encode_getfattr_open(xdr, args->bitmask, args->open_bitmap, &hdr);
encode_nops(&hdr);
}
encode_sequence(xdr, &args->seq_args, &hdr);
encode_putfh(xdr, args->fh, &hdr);
encode_open(xdr, args, &hdr);
- encode_getfattr(xdr, args->bitmask, &hdr);
+ if (args->access)
+ encode_access(xdr, args->access, &hdr);
+ encode_getfattr_open(xdr, args->bitmask, args->open_bitmap, &hdr);
encode_nops(&hdr);
}
return -EIO;
}
-static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access)
+static int decode_access(struct xdr_stream *xdr, u32 *supported, u32 *access)
{
__be32 *p;
uint32_t supp, acc;
goto out_overflow;
supp = be32_to_cpup(p++);
acc = be32_to_cpup(p);
- access->supported = supp;
- access->access = acc;
+ *supported = supp;
+ *access = acc;
return 0;
out_overflow:
print_overflow_msg(__func__, xdr);
* and places the remaining xdr data in xdr_buf->tail
*/
pdev->mincount = be32_to_cpup(p);
- xdr_read_pages(xdr, pdev->mincount); /* include space for the length */
+ if (xdr_read_pages(xdr, pdev->mincount) != pdev->mincount)
+ goto out_overflow;
/* Parse notification bitmap, verifying that it is zero. */
p = xdr_inline_decode(xdr, 4);
status = decode_putfh(xdr);
if (status != 0)
goto out;
- status = decode_access(xdr, res);
+ status = decode_access(xdr, &res->supported, &res->access);
if (status != 0)
goto out;
decode_getfattr(xdr, res->fattr, res->server);
status = decode_getfh(xdr, &res->fh);
if (status)
goto out;
+ if (res->access_request)
+ decode_access(xdr, &res->access_supported, &res->access_result);
decode_getfattr(xdr, res->f_attr, res->server);
out:
return status;
status = decode_open(xdr, res);
if (status)
goto out;
+ if (res->access_request)
+ decode_access(xdr, &res->access_supported, &res->access_result);
decode_getfattr(xdr, res->f_attr, res->server);
out:
return status;
#include <scsi/osd_ore.h>
#include "objlayout.h"
+#include "../internal.h"
#define NFSDBG_FACILITY NFSDBG_PNFS_LD
void objio_init_write(struct nfs_pageio_descriptor *pgio, struct nfs_page *req)
{
unsigned long stripe_end = 0;
+ u64 wb_size;
- pnfs_generic_pg_init_write(pgio, req);
+ if (pgio->pg_dreq == NULL)
+ wb_size = i_size_read(pgio->pg_inode) - req_offset(req);
+ else
+ wb_size = nfs_dreq_bytes_left(pgio->pg_dreq);
+
+ pnfs_generic_pg_init_write(pgio, req, wb_size);
if (unlikely(pgio->pg_lseg == NULL))
return; /* Not pNFS */
unsigned int offset, unsigned int count)
{
struct nfs_page *req;
+ struct nfs_lock_context *l_ctx;
/* try to allocate the request struct */
req = nfs_page_alloc();
return ERR_PTR(-ENOMEM);
/* get lock context early so we can deal with alloc failures */
- req->wb_lock_context = nfs_get_lock_context(ctx);
- if (req->wb_lock_context == NULL) {
+ l_ctx = nfs_get_lock_context(ctx);
+ if (IS_ERR(l_ctx)) {
nfs_page_free(req);
- return ERR_PTR(-ENOMEM);
+ return ERR_CAST(l_ctx);
}
+ req->wb_lock_context = l_ctx;
/* Initialize the request struct. Initially, we assume a
* long write-back delay. This will be adjusted in
{
if (req->wb_context->cred != prev->wb_context->cred)
return false;
- if (req->wb_lock_context->lockowner != prev->wb_lock_context->lockowner)
+ if (req->wb_lock_context->lockowner.l_owner != prev->wb_lock_context->lockowner.l_owner)
+ return false;
+ if (req->wb_lock_context->lockowner.l_pid != prev->wb_lock_context->lockowner.l_pid)
return false;
if (req->wb_context->state != prev->wb_context->state)
return false;
#include "iostat.h"
#define NFSDBG_FACILITY NFSDBG_PNFS
+#define PNFS_LAYOUTGET_RETRY_TIMEOUT (120*HZ)
/* Locking:
*
/* Need to hold i_lock if caller does not already hold reference */
void
-get_layout_hdr(struct pnfs_layout_hdr *lo)
+pnfs_get_layout_hdr(struct pnfs_layout_hdr *lo)
{
atomic_inc(&lo->plh_refcount);
}
pnfs_alloc_layout_hdr(struct inode *ino, gfp_t gfp_flags)
{
struct pnfs_layoutdriver_type *ld = NFS_SERVER(ino)->pnfs_curr_ld;
- return ld->alloc_layout_hdr ? ld->alloc_layout_hdr(ino, gfp_flags) :
- kzalloc(sizeof(struct pnfs_layout_hdr), gfp_flags);
+ return ld->alloc_layout_hdr(ino, gfp_flags);
}
static void
pnfs_free_layout_hdr(struct pnfs_layout_hdr *lo)
{
- struct pnfs_layoutdriver_type *ld = NFS_SERVER(lo->plh_inode)->pnfs_curr_ld;
+ struct nfs_server *server = NFS_SERVER(lo->plh_inode);
+ struct pnfs_layoutdriver_type *ld = server->pnfs_curr_ld;
+
+ if (!list_empty(&lo->plh_layouts)) {
+ struct nfs_client *clp = server->nfs_client;
+
+ spin_lock(&clp->cl_lock);
+ list_del_init(&lo->plh_layouts);
+ spin_unlock(&clp->cl_lock);
+ }
put_rpccred(lo->plh_lc_cred);
- return ld->alloc_layout_hdr ? ld->free_layout_hdr(lo) : kfree(lo);
+ return ld->free_layout_hdr(lo);
}
static void
-destroy_layout_hdr(struct pnfs_layout_hdr *lo)
+pnfs_detach_layout_hdr(struct pnfs_layout_hdr *lo)
{
+ struct nfs_inode *nfsi = NFS_I(lo->plh_inode);
dprintk("%s: freeing layout cache %p\n", __func__, lo);
- BUG_ON(!list_empty(&lo->plh_layouts));
- NFS_I(lo->plh_inode)->layout = NULL;
- pnfs_free_layout_hdr(lo);
+ nfsi->layout = NULL;
+ /* Reset MDS Threshold I/O counters */
+ nfsi->write_io = 0;
+ nfsi->read_io = 0;
+}
+
+void
+pnfs_put_layout_hdr(struct pnfs_layout_hdr *lo)
+{
+ struct inode *inode = lo->plh_inode;
+
+ if (atomic_dec_and_lock(&lo->plh_refcount, &inode->i_lock)) {
+ pnfs_detach_layout_hdr(lo);
+ spin_unlock(&inode->i_lock);
+ pnfs_free_layout_hdr(lo);
+ }
+}
+
+static int
+pnfs_iomode_to_fail_bit(u32 iomode)
+{
+ return iomode == IOMODE_RW ?
+ NFS_LAYOUT_RW_FAILED : NFS_LAYOUT_RO_FAILED;
}
static void
-put_layout_hdr_locked(struct pnfs_layout_hdr *lo)
+pnfs_layout_set_fail_bit(struct pnfs_layout_hdr *lo, int fail_bit)
{
- if (atomic_dec_and_test(&lo->plh_refcount))
- destroy_layout_hdr(lo);
+ lo->plh_retry_timestamp = jiffies;
+ if (test_and_set_bit(fail_bit, &lo->plh_flags))
+ atomic_inc(&lo->plh_refcount);
}
-void
-put_layout_hdr(struct pnfs_layout_hdr *lo)
+static void
+pnfs_layout_clear_fail_bit(struct pnfs_layout_hdr *lo, int fail_bit)
+{
+ if (test_and_clear_bit(fail_bit, &lo->plh_flags))
+ atomic_dec(&lo->plh_refcount);
+}
+
+static void
+pnfs_layout_io_set_failed(struct pnfs_layout_hdr *lo, u32 iomode)
{
struct inode *inode = lo->plh_inode;
+ struct pnfs_layout_range range = {
+ .iomode = iomode,
+ .offset = 0,
+ .length = NFS4_MAX_UINT64,
+ };
+ LIST_HEAD(head);
- if (atomic_dec_and_lock(&lo->plh_refcount, &inode->i_lock)) {
- destroy_layout_hdr(lo);
- spin_unlock(&inode->i_lock);
+ spin_lock(&inode->i_lock);
+ pnfs_layout_set_fail_bit(lo, pnfs_iomode_to_fail_bit(iomode));
+ pnfs_mark_matching_lsegs_invalid(lo, &head, &range);
+ spin_unlock(&inode->i_lock);
+ pnfs_free_lseg_list(&head);
+ dprintk("%s Setting layout IOMODE_%s fail bit\n", __func__,
+ iomode == IOMODE_RW ? "RW" : "READ");
+}
+
+static bool
+pnfs_layout_io_test_failed(struct pnfs_layout_hdr *lo, u32 iomode)
+{
+ unsigned long start, end;
+ int fail_bit = pnfs_iomode_to_fail_bit(iomode);
+
+ if (test_bit(fail_bit, &lo->plh_flags) == 0)
+ return false;
+ end = jiffies;
+ start = end - PNFS_LAYOUTGET_RETRY_TIMEOUT;
+ if (!time_in_range(lo->plh_retry_timestamp, start, end)) {
+ /* It is time to retry the failed layoutgets */
+ pnfs_layout_clear_fail_bit(lo, fail_bit);
+ return false;
}
+ return true;
}
static void
lseg->pls_layout = lo;
}
-static void free_lseg(struct pnfs_layout_segment *lseg)
+static void pnfs_free_lseg(struct pnfs_layout_segment *lseg)
{
struct inode *ino = lseg->pls_layout->plh_inode;
NFS_SERVER(ino)->pnfs_curr_ld->free_lseg(lseg);
- /* Matched by get_layout_hdr in pnfs_insert_layout */
- put_layout_hdr(NFS_I(ino)->layout);
}
static void
-put_lseg_common(struct pnfs_layout_segment *lseg)
+pnfs_layout_remove_lseg(struct pnfs_layout_hdr *lo,
+ struct pnfs_layout_segment *lseg)
{
- struct inode *inode = lseg->pls_layout->plh_inode;
+ struct inode *inode = lo->plh_inode;
WARN_ON(test_bit(NFS_LSEG_VALID, &lseg->pls_flags));
list_del_init(&lseg->pls_list);
- if (list_empty(&lseg->pls_layout->plh_segs)) {
- set_bit(NFS_LAYOUT_DESTROYED, &lseg->pls_layout->plh_flags);
- /* Matched by initial refcount set in alloc_init_layout_hdr */
- put_layout_hdr_locked(lseg->pls_layout);
- }
+ /* Matched by pnfs_get_layout_hdr in pnfs_layout_insert_lseg */
+ atomic_dec(&lo->plh_refcount);
+ if (list_empty(&lo->plh_segs))
+ clear_bit(NFS_LAYOUT_BULK_RECALL, &lo->plh_flags);
rpc_wake_up(&NFS_SERVER(inode)->roc_rpcwaitq);
}
void
-put_lseg(struct pnfs_layout_segment *lseg)
+pnfs_put_lseg(struct pnfs_layout_segment *lseg)
{
+ struct pnfs_layout_hdr *lo;
struct inode *inode;
if (!lseg)
dprintk("%s: lseg %p ref %d valid %d\n", __func__, lseg,
atomic_read(&lseg->pls_refcount),
test_bit(NFS_LSEG_VALID, &lseg->pls_flags));
- inode = lseg->pls_layout->plh_inode;
+ lo = lseg->pls_layout;
+ inode = lo->plh_inode;
if (atomic_dec_and_lock(&lseg->pls_refcount, &inode->i_lock)) {
- LIST_HEAD(free_me);
-
- put_lseg_common(lseg);
- list_add(&lseg->pls_list, &free_me);
+ pnfs_get_layout_hdr(lo);
+ pnfs_layout_remove_lseg(lo, lseg);
spin_unlock(&inode->i_lock);
- pnfs_free_lseg_list(&free_me);
+ pnfs_free_lseg(lseg);
+ pnfs_put_layout_hdr(lo);
}
}
-EXPORT_SYMBOL_GPL(put_lseg);
+EXPORT_SYMBOL_GPL(pnfs_put_lseg);
static inline u64
end_offset(u64 start, u64 len)
dprintk("%s: lseg %p ref %d\n", __func__, lseg,
atomic_read(&lseg->pls_refcount));
if (atomic_dec_and_test(&lseg->pls_refcount)) {
- put_lseg_common(lseg);
+ pnfs_layout_remove_lseg(lseg->pls_layout, lseg);
list_add(&lseg->pls_list, tmp_list);
rv = 1;
}
* after call.
*/
int
-mark_matching_lsegs_invalid(struct pnfs_layout_hdr *lo,
+pnfs_mark_matching_lsegs_invalid(struct pnfs_layout_hdr *lo,
struct list_head *tmp_list,
struct pnfs_layout_range *recall_range)
{
dprintk("%s:Begin lo %p\n", __func__, lo);
- if (list_empty(&lo->plh_segs)) {
- /* Reset MDS Threshold I/O counters */
- NFS_I(lo->plh_inode)->write_io = 0;
- NFS_I(lo->plh_inode)->read_io = 0;
- if (!test_and_set_bit(NFS_LAYOUT_DESTROYED, &lo->plh_flags))
- put_layout_hdr_locked(lo);
+ if (list_empty(&lo->plh_segs))
return 0;
- }
list_for_each_entry_safe(lseg, next, &lo->plh_segs, pls_list)
if (!recall_range ||
should_free_lseg(&lseg->pls_range, recall_range)) {
pnfs_free_lseg_list(struct list_head *free_me)
{
struct pnfs_layout_segment *lseg, *tmp;
- struct pnfs_layout_hdr *lo;
if (list_empty(free_me))
return;
- lo = list_first_entry(free_me, struct pnfs_layout_segment,
- pls_list)->pls_layout;
-
- if (test_bit(NFS_LAYOUT_DESTROYED, &lo->plh_flags)) {
- struct nfs_client *clp;
-
- clp = NFS_SERVER(lo->plh_inode)->nfs_client;
- spin_lock(&clp->cl_lock);
- list_del_init(&lo->plh_layouts);
- spin_unlock(&clp->cl_lock);
- }
list_for_each_entry_safe(lseg, tmp, free_me, pls_list) {
list_del(&lseg->pls_list);
- free_lseg(lseg);
+ pnfs_free_lseg(lseg);
}
}
lo = nfsi->layout;
if (lo) {
lo->plh_block_lgets++; /* permanently block new LAYOUTGETs */
- mark_matching_lsegs_invalid(lo, &tmp_list, NULL);
- }
- spin_unlock(&nfsi->vfs_inode.i_lock);
- pnfs_free_lseg_list(&tmp_list);
+ pnfs_mark_matching_lsegs_invalid(lo, &tmp_list, NULL);
+ pnfs_get_layout_hdr(lo);
+ pnfs_layout_clear_fail_bit(lo, NFS_LAYOUT_RO_FAILED);
+ pnfs_layout_clear_fail_bit(lo, NFS_LAYOUT_RW_FAILED);
+ spin_unlock(&nfsi->vfs_inode.i_lock);
+ pnfs_free_lseg_list(&tmp_list);
+ pnfs_put_layout_hdr(lo);
+ } else
+ spin_unlock(&nfsi->vfs_inode.i_lock);
}
EXPORT_SYMBOL_GPL(pnfs_destroy_layout);
}
}
+/*
+ * Compare 2 layout stateid sequence ids, to see which is newer,
+ * taking into account wraparound issues.
+ */
+static bool pnfs_seqid_is_newer(u32 s1, u32 s2)
+{
+ return (s32)s1 - (s32)s2 > 0;
+}
+
/* update lo->plh_stateid with new if is more recent */
void
pnfs_set_layout_stateid(struct pnfs_layout_hdr *lo, const nfs4_stateid *new,
bool update_barrier)
{
- u32 oldseq, newseq;
+ u32 oldseq, newseq, new_barrier;
+ int empty = list_empty(&lo->plh_segs);
oldseq = be32_to_cpu(lo->plh_stateid.seqid);
newseq = be32_to_cpu(new->seqid);
- if ((int)(newseq - oldseq) > 0) {
+ if (empty || pnfs_seqid_is_newer(newseq, oldseq)) {
nfs4_stateid_copy(&lo->plh_stateid, new);
if (update_barrier) {
- u32 new_barrier = be32_to_cpu(new->seqid);
-
- if ((int)(new_barrier - lo->plh_barrier))
- lo->plh_barrier = new_barrier;
+ new_barrier = be32_to_cpu(new->seqid);
} else {
/* Because of wraparound, we want to keep the barrier
- * "close" to the current seqids. It needs to be
- * within 2**31 to count as "behind", so if it
- * gets too near that limit, give us a litle leeway
- * and bring it to within 2**30.
- * NOTE - and yes, this is all unsigned arithmetic.
+ * "close" to the current seqids.
*/
- if (unlikely((newseq - lo->plh_barrier) > (3 << 29)))
- lo->plh_barrier = newseq - (1 << 30);
+ new_barrier = newseq - atomic_read(&lo->plh_outstanding);
}
+ if (empty || pnfs_seqid_is_newer(new_barrier, lo->plh_barrier))
+ lo->plh_barrier = new_barrier;
}
}
+static bool
+pnfs_layout_stateid_blocked(const struct pnfs_layout_hdr *lo,
+ const nfs4_stateid *stateid)
+{
+ u32 seqid = be32_to_cpu(stateid->seqid);
+
+ return !pnfs_seqid_is_newer(seqid, lo->plh_barrier);
+}
+
/* lget is set to 1 if called from inside send_layoutget call chain */
static bool
-pnfs_layoutgets_blocked(struct pnfs_layout_hdr *lo, nfs4_stateid *stateid,
- int lget)
+pnfs_layoutgets_blocked(const struct pnfs_layout_hdr *lo, int lget)
{
- if ((stateid) &&
- (int)(lo->plh_barrier - be32_to_cpu(stateid->seqid)) >= 0)
- return true;
return lo->plh_block_lgets ||
- test_bit(NFS_LAYOUT_DESTROYED, &lo->plh_flags) ||
test_bit(NFS_LAYOUT_BULK_RECALL, &lo->plh_flags) ||
(list_empty(&lo->plh_segs) &&
(atomic_read(&lo->plh_outstanding) > lget));
dprintk("--> %s\n", __func__);
spin_lock(&lo->plh_inode->i_lock);
- if (pnfs_layoutgets_blocked(lo, NULL, 1)) {
+ if (pnfs_layoutgets_blocked(lo, 1)) {
status = -EAGAIN;
} else if (list_empty(&lo->plh_segs)) {
int seq;
struct inode *ino = lo->plh_inode;
struct nfs_server *server = NFS_SERVER(ino);
struct nfs4_layoutget *lgp;
- struct pnfs_layout_segment *lseg = NULL;
+ struct pnfs_layout_segment *lseg;
dprintk("--> %s\n", __func__);
lgp->args.type = server->pnfs_curr_ld->id;
lgp->args.inode = ino;
lgp->args.ctx = get_nfs_open_context(ctx);
- lgp->lsegpp = &lseg;
lgp->gfp_flags = gfp_flags;
/* Synchronously retrieve layout information from server and
* store in lseg.
*/
- nfs4_proc_layoutget(lgp, gfp_flags);
- if (!lseg) {
- /* remember that LAYOUTGET failed and suspend trying */
- set_bit(lo_fail_bit(range->iomode), &lo->plh_flags);
+ lseg = nfs4_proc_layoutget(lgp, gfp_flags);
+ if (IS_ERR(lseg)) {
+ switch (PTR_ERR(lseg)) {
+ case -ENOMEM:
+ case -ERESTARTSYS:
+ break;
+ default:
+ /* remember that LAYOUTGET failed and suspend trying */
+ pnfs_layout_io_set_failed(lo, range->iomode);
+ }
+ return NULL;
}
return lseg;
spin_lock(&ino->i_lock);
lo = nfsi->layout;
- if (!lo || pnfs_test_layout_returned(lo)) {
+ if (!lo) {
spin_unlock(&ino->i_lock);
dprintk("NFS: %s no layout to return\n", __func__);
goto out;
}
stateid = nfsi->layout->plh_stateid;
/* Reference matched in nfs4_layoutreturn_release */
- get_layout_hdr(lo);
+ pnfs_get_layout_hdr(lo);
empty = list_empty(&lo->plh_segs);
- mark_matching_lsegs_invalid(lo, &tmp_list, NULL);
+ pnfs_mark_matching_lsegs_invalid(lo, &tmp_list, NULL);
/* Don't send a LAYOUTRETURN if list was initially empty */
if (empty) {
spin_unlock(&ino->i_lock);
- put_layout_hdr(lo);
+ pnfs_put_layout_hdr(lo);
dprintk("NFS: %s no layout segments to return\n", __func__);
goto out;
}
lo->plh_block_lgets++;
- pnfs_mark_layout_returned(lo);
spin_unlock(&ino->i_lock);
pnfs_free_lseg_list(&tmp_list);
lrp = kzalloc(sizeof(*lrp), GFP_KERNEL);
if (unlikely(lrp == NULL)) {
status = -ENOMEM;
- set_bit(NFS_LAYOUT_RW_FAILED, &lo->plh_flags);
- set_bit(NFS_LAYOUT_RO_FAILED, &lo->plh_flags);
- pnfs_clear_layout_returned(lo);
- put_layout_hdr(lo);
+ spin_lock(&ino->i_lock);
+ lo->plh_block_lgets--;
+ spin_unlock(&ino->i_lock);
+ pnfs_put_layout_hdr(lo);
goto out;
}
if (!found)
goto out_nolayout;
lo->plh_block_lgets++;
- get_layout_hdr(lo); /* matched in pnfs_roc_release */
+ pnfs_get_layout_hdr(lo); /* matched in pnfs_roc_release */
spin_unlock(&ino->i_lock);
pnfs_free_lseg_list(&tmp_list);
return true;
spin_lock(&ino->i_lock);
lo = NFS_I(ino)->layout;
lo->plh_block_lgets--;
- put_layout_hdr_locked(lo);
- spin_unlock(&ino->i_lock);
+ if (atomic_dec_and_test(&lo->plh_refcount)) {
+ pnfs_detach_layout_hdr(lo);
+ spin_unlock(&ino->i_lock);
+ pnfs_free_layout_hdr(lo);
+ } else
+ spin_unlock(&ino->i_lock);
}
void pnfs_roc_set_barrier(struct inode *ino, u32 barrier)
spin_lock(&ino->i_lock);
lo = NFS_I(ino)->layout;
- if ((int)(barrier - lo->plh_barrier) > 0)
+ if (pnfs_seqid_is_newer(barrier, lo->plh_barrier))
lo->plh_barrier = barrier;
spin_unlock(&ino->i_lock);
}
-bool pnfs_roc_drain(struct inode *ino, u32 *barrier)
+bool pnfs_roc_drain(struct inode *ino, u32 *barrier, struct rpc_task *task)
{
struct nfs_inode *nfsi = NFS_I(ino);
+ struct pnfs_layout_hdr *lo;
struct pnfs_layout_segment *lseg;
+ u32 current_seqid;
bool found = false;
spin_lock(&ino->i_lock);
list_for_each_entry(lseg, &nfsi->layout->plh_segs, pls_list)
if (test_bit(NFS_LSEG_ROC, &lseg->pls_flags)) {
+ rpc_sleep_on(&NFS_SERVER(ino)->roc_rpcwaitq, task, NULL);
found = true;
- break;
+ goto out;
}
- if (!found) {
- struct pnfs_layout_hdr *lo = nfsi->layout;
- u32 current_seqid = be32_to_cpu(lo->plh_stateid.seqid);
+ lo = nfsi->layout;
+ current_seqid = be32_to_cpu(lo->plh_stateid.seqid);
- /* Since close does not return a layout stateid for use as
- * a barrier, we choose the worst-case barrier.
- */
- *barrier = current_seqid + atomic_read(&lo->plh_outstanding);
- }
+ /* Since close does not return a layout stateid for use as
+ * a barrier, we choose the worst-case barrier.
+ */
+ *barrier = current_seqid + atomic_read(&lo->plh_outstanding);
+out:
spin_unlock(&ino->i_lock);
return found;
}
}
static void
-pnfs_insert_layout(struct pnfs_layout_hdr *lo,
+pnfs_layout_insert_lseg(struct pnfs_layout_hdr *lo,
struct pnfs_layout_segment *lseg)
{
struct pnfs_layout_segment *lp;
dprintk("%s:Begin\n", __func__);
- assert_spin_locked(&lo->plh_inode->i_lock);
list_for_each_entry(lp, &lo->plh_segs, pls_list) {
if (cmp_layout(&lseg->pls_range, &lp->pls_range) > 0)
continue;
__func__, lseg, lseg->pls_range.iomode,
lseg->pls_range.offset, lseg->pls_range.length);
out:
- get_layout_hdr(lo);
+ pnfs_get_layout_hdr(lo);
dprintk("%s:Return\n", __func__);
}
dprintk("%s Begin ino=%p layout=%p\n", __func__, ino, nfsi->layout);
- assert_spin_locked(&ino->i_lock);
- if (nfsi->layout) {
- if (test_bit(NFS_LAYOUT_DESTROYED, &nfsi->layout->plh_flags))
- return NULL;
- else
- return nfsi->layout;
- }
+ if (nfsi->layout != NULL)
+ goto out_existing;
spin_unlock(&ino->i_lock);
new = alloc_init_layout_hdr(ino, ctx, gfp_flags);
spin_lock(&ino->i_lock);
- if (likely(nfsi->layout == NULL)) /* Won the race? */
+ if (likely(nfsi->layout == NULL)) { /* Won the race? */
nfsi->layout = new;
- else
- pnfs_free_layout_hdr(new);
+ return new;
+ }
+ pnfs_free_layout_hdr(new);
+out_existing:
+ pnfs_get_layout_hdr(nfsi->layout);
return nfsi->layout;
}
dprintk("%s:Begin\n", __func__);
- assert_spin_locked(&lo->plh_inode->i_lock);
list_for_each_entry(lseg, &lo->plh_segs, pls_list) {
if (test_bit(NFS_LSEG_VALID, &lseg->pls_flags) &&
is_matching_lseg(&lseg->pls_range, range)) {
- ret = get_lseg(lseg);
+ ret = pnfs_get_lseg(lseg);
break;
}
if (lseg->pls_range.offset > range->offset)
.length = count,
};
unsigned pg_offset;
- struct nfs_inode *nfsi = NFS_I(ino);
struct nfs_server *server = NFS_SERVER(ino);
struct nfs_client *clp = server->nfs_client;
struct pnfs_layout_hdr *lo;
bool first = false;
if (!pnfs_enabled_sb(NFS_SERVER(ino)))
- return NULL;
+ goto out;
if (pnfs_within_mdsthreshold(ctx, ino, iomode))
- return NULL;
+ goto out;
spin_lock(&ino->i_lock);
lo = pnfs_find_alloc_layout(ino, ctx, gfp_flags);
if (lo == NULL) {
- dprintk("%s ERROR: can't get pnfs_layout_hdr\n", __func__);
- goto out_unlock;
+ spin_unlock(&ino->i_lock);
+ goto out;
}
/* Do we even need to bother with this? */
}
/* if LAYOUTGET already failed once we don't try again */
- if (test_bit(lo_fail_bit(iomode), &nfsi->layout->plh_flags))
+ if (pnfs_layout_io_test_failed(lo, iomode))
goto out_unlock;
/* Check to see if the layout for the given range already exists */
if (lseg)
goto out_unlock;
- if (pnfs_layoutgets_blocked(lo, NULL, 0))
+ if (pnfs_layoutgets_blocked(lo, 0))
goto out_unlock;
atomic_inc(&lo->plh_outstanding);
- get_layout_hdr(lo);
if (list_empty(&lo->plh_segs))
first = true;
- /* Enable LAYOUTRETURNs */
- pnfs_clear_layout_returned(lo);
-
spin_unlock(&ino->i_lock);
if (first) {
/* The lo must be on the clp list if there is any
arg.length = PAGE_CACHE_ALIGN(arg.length);
lseg = send_layoutget(lo, ctx, &arg, gfp_flags);
- if (!lseg && first) {
- spin_lock(&clp->cl_lock);
- list_del_init(&lo->plh_layouts);
- spin_unlock(&clp->cl_lock);
- }
atomic_dec(&lo->plh_outstanding);
- put_layout_hdr(lo);
+out_put_layout_hdr:
+ pnfs_put_layout_hdr(lo);
out:
- dprintk("%s end, state 0x%lx lseg %p\n", __func__,
- nfsi->layout ? nfsi->layout->plh_flags : -1, lseg);
+ dprintk("%s: inode %s/%llu pNFS layout segment %s for "
+ "(%s, offset: %llu, length: %llu)\n",
+ __func__, ino->i_sb->s_id,
+ (unsigned long long)NFS_FILEID(ino),
+ lseg == NULL ? "not found" : "found",
+ iomode==IOMODE_RW ? "read/write" : "read-only",
+ (unsigned long long)pos,
+ (unsigned long long)count);
return lseg;
out_unlock:
spin_unlock(&ino->i_lock);
- goto out;
+ goto out_put_layout_hdr;
}
EXPORT_SYMBOL_GPL(pnfs_update_layout);
-int
+struct pnfs_layout_segment *
pnfs_layout_process(struct nfs4_layoutget *lgp)
{
struct pnfs_layout_hdr *lo = NFS_I(lgp->args.inode)->layout;
goto out_forget_reply;
}
- if (pnfs_layoutgets_blocked(lo, &res->stateid, 1)) {
+ if (pnfs_layoutgets_blocked(lo, 1) ||
+ pnfs_layout_stateid_blocked(lo, &res->stateid)) {
dprintk("%s forget reply due to state\n", __func__);
goto out_forget_reply;
}
+
+ /* Done processing layoutget. Set the layout stateid */
+ pnfs_set_layout_stateid(lo, &res->stateid, false);
+
init_lseg(lo, lseg);
lseg->pls_range = res->range;
- *lgp->lsegpp = get_lseg(lseg);
- pnfs_insert_layout(lo, lseg);
+ pnfs_get_lseg(lseg);
+ pnfs_layout_insert_lseg(lo, lseg);
if (res->return_on_close) {
set_bit(NFS_LSEG_ROC, &lseg->pls_flags);
set_bit(NFS_LAYOUT_ROC, &lo->plh_flags);
}
- /* Done processing layoutget. Set the layout stateid */
- pnfs_set_layout_stateid(lo, &res->stateid, false);
spin_unlock(&ino->i_lock);
+ return lseg;
out:
- return status;
+ return ERR_PTR(status);
out_forget_reply:
spin_unlock(&ino->i_lock);
void
pnfs_generic_pg_init_read(struct nfs_pageio_descriptor *pgio, struct nfs_page *req)
{
+ u64 rd_size = req->wb_bytes;
+
BUG_ON(pgio->pg_lseg != NULL);
if (req->wb_offset != req->wb_pgbase) {
nfs_pageio_reset_read_mds(pgio);
return;
}
+
+ if (pgio->pg_dreq == NULL)
+ rd_size = i_size_read(pgio->pg_inode) - req_offset(req);
+ else
+ rd_size = nfs_dreq_bytes_left(pgio->pg_dreq);
+
pgio->pg_lseg = pnfs_update_layout(pgio->pg_inode,
req->wb_context,
req_offset(req),
- req->wb_bytes,
+ rd_size,
IOMODE_READ,
GFP_KERNEL);
/* If no lseg, fall back to read through mds */
EXPORT_SYMBOL_GPL(pnfs_generic_pg_init_read);
void
-pnfs_generic_pg_init_write(struct nfs_pageio_descriptor *pgio, struct nfs_page *req)
+pnfs_generic_pg_init_write(struct nfs_pageio_descriptor *pgio,
+ struct nfs_page *req, u64 wb_size)
{
BUG_ON(pgio->pg_lseg != NULL);
nfs_pageio_reset_write_mds(pgio);
return;
}
+
pgio->pg_lseg = pnfs_update_layout(pgio->pg_inode,
req->wb_context,
req_offset(req),
- req->wb_bytes,
+ wb_size,
IOMODE_RW,
GFP_NOFS);
/* If no lseg, fall back to write through mds */
if (trypnfs == PNFS_NOT_ATTEMPTED)
pnfs_write_through_mds(desc, data);
}
- put_lseg(lseg);
+ pnfs_put_lseg(lseg);
}
static void pnfs_writehdr_free(struct nfs_pgio_header *hdr)
{
- put_lseg(hdr->lseg);
+ pnfs_put_lseg(hdr->lseg);
nfs_writehdr_free(hdr);
}
EXPORT_SYMBOL_GPL(pnfs_writehdr_free);
whdr = nfs_writehdr_alloc();
if (!whdr) {
desc->pg_completion_ops->error_cleanup(&desc->pg_list);
- put_lseg(desc->pg_lseg);
+ pnfs_put_lseg(desc->pg_lseg);
desc->pg_lseg = NULL;
return -ENOMEM;
}
hdr = &whdr->header;
nfs_pgheader_init(desc, hdr, pnfs_writehdr_free);
- hdr->lseg = get_lseg(desc->pg_lseg);
+ hdr->lseg = pnfs_get_lseg(desc->pg_lseg);
atomic_inc(&hdr->refcnt);
ret = nfs_generic_flush(desc, hdr);
if (ret != 0) {
- put_lseg(desc->pg_lseg);
+ pnfs_put_lseg(desc->pg_lseg);
desc->pg_lseg = NULL;
} else
pnfs_do_multiple_writes(desc, &hdr->rpc_list, desc->pg_ioflags);
if (trypnfs == PNFS_NOT_ATTEMPTED)
pnfs_read_through_mds(desc, data);
}
- put_lseg(lseg);
+ pnfs_put_lseg(lseg);
}
static void pnfs_readhdr_free(struct nfs_pgio_header *hdr)
{
- put_lseg(hdr->lseg);
+ pnfs_put_lseg(hdr->lseg);
nfs_readhdr_free(hdr);
}
EXPORT_SYMBOL_GPL(pnfs_readhdr_free);
if (!rhdr) {
desc->pg_completion_ops->error_cleanup(&desc->pg_list);
ret = -ENOMEM;
- put_lseg(desc->pg_lseg);
+ pnfs_put_lseg(desc->pg_lseg);
desc->pg_lseg = NULL;
return ret;
}
hdr = &rhdr->header;
nfs_pgheader_init(desc, hdr, pnfs_readhdr_free);
- hdr->lseg = get_lseg(desc->pg_lseg);
+ hdr->lseg = pnfs_get_lseg(desc->pg_lseg);
atomic_inc(&hdr->refcnt);
ret = nfs_generic_pagein(desc, hdr);
if (ret != 0) {
- put_lseg(desc->pg_lseg);
+ pnfs_put_lseg(desc->pg_lseg);
desc->pg_lseg = NULL;
} else
pnfs_do_multiple_reads(desc, &hdr->rpc_list);
void pnfs_set_lo_fail(struct pnfs_layout_segment *lseg)
{
- if (lseg->pls_range.iomode == IOMODE_RW) {
- dprintk("%s Setting layout IOMODE_RW fail bit\n", __func__);
- set_bit(lo_fail_bit(IOMODE_RW), &lseg->pls_layout->plh_flags);
- } else {
- dprintk("%s Setting layout IOMODE_READ fail bit\n", __func__);
- set_bit(lo_fail_bit(IOMODE_READ), &lseg->pls_layout->plh_flags);
- }
+ pnfs_layout_io_set_failed(lseg->pls_layout, lseg->pls_range.iomode);
}
EXPORT_SYMBOL_GPL(pnfs_set_lo_fail);
}
if (!test_and_set_bit(NFS_LSEG_LAYOUTCOMMIT, &hdr->lseg->pls_flags)) {
/* references matched in nfs4_layoutcommit_release */
- get_lseg(hdr->lseg);
+ pnfs_get_lseg(hdr->lseg);
}
if (end_pos > nfsi->layout->plh_lwb)
nfsi->layout->plh_lwb = end_pos;
NFS_LAYOUT_RW_FAILED, /* get rw layout failed stop trying */
NFS_LAYOUT_BULK_RECALL, /* bulk recall affecting layout */
NFS_LAYOUT_ROC, /* some lseg had roc bit set */
- NFS_LAYOUT_DESTROYED, /* no new use of layout allowed */
- NFS_LAYOUT_INVALID, /* layout is being destroyed */
- NFS_LAYOUT_RETURNED, /* layout has already been returned */
};
enum layoutdriver_policy_flags {
atomic_t plh_outstanding; /* number of RPCs out */
unsigned long plh_block_lgets; /* block LAYOUTGET if >0 */
u32 plh_barrier; /* ignore lower seqids */
+ unsigned long plh_retry_timestamp;
unsigned long plh_flags;
loff_t plh_lwb; /* last write byte for layoutcommit */
struct rpc_cred *plh_lc_cred; /* layoutcommit cred */
struct pnfs_devicelist *devlist);
extern int nfs4_proc_getdeviceinfo(struct nfs_server *server,
struct pnfs_device *dev);
-extern void nfs4_proc_layoutget(struct nfs4_layoutget *lgp, gfp_t gfp_flags);
+extern struct pnfs_layout_segment* nfs4_proc_layoutget(struct nfs4_layoutget *lgp, gfp_t gfp_flags);
extern int nfs4_proc_layoutreturn(struct nfs4_layoutreturn *lrp);
/* pnfs.c */
-void get_layout_hdr(struct pnfs_layout_hdr *lo);
-void put_lseg(struct pnfs_layout_segment *lseg);
+void pnfs_get_layout_hdr(struct pnfs_layout_hdr *lo);
+void pnfs_put_lseg(struct pnfs_layout_segment *lseg);
void pnfs_pageio_init_read(struct nfs_pageio_descriptor *, struct inode *,
const struct nfs_pgio_completion_ops *);
void unset_pnfs_layoutdriver(struct nfs_server *);
void pnfs_generic_pg_init_read(struct nfs_pageio_descriptor *, struct nfs_page *);
int pnfs_generic_pg_readpages(struct nfs_pageio_descriptor *desc);
-void pnfs_generic_pg_init_write(struct nfs_pageio_descriptor *, struct nfs_page *);
+void pnfs_generic_pg_init_write(struct nfs_pageio_descriptor *pgio,
+ struct nfs_page *req, u64 wb_size);
int pnfs_generic_pg_writepages(struct nfs_pageio_descriptor *desc);
bool pnfs_generic_pg_test(struct nfs_pageio_descriptor *pgio, struct nfs_page *prev, struct nfs_page *req);
void pnfs_set_lo_fail(struct pnfs_layout_segment *lseg);
-int pnfs_layout_process(struct nfs4_layoutget *lgp);
+struct pnfs_layout_segment *pnfs_layout_process(struct nfs4_layoutget *lgp);
void pnfs_free_lseg_list(struct list_head *tmp_list);
void pnfs_destroy_layout(struct nfs_inode *);
void pnfs_destroy_all_layouts(struct nfs_client *);
-void put_layout_hdr(struct pnfs_layout_hdr *lo);
+void pnfs_put_layout_hdr(struct pnfs_layout_hdr *lo);
void pnfs_set_layout_stateid(struct pnfs_layout_hdr *lo,
const nfs4_stateid *new,
bool update_barrier);
int pnfs_choose_layoutget_stateid(nfs4_stateid *dst,
struct pnfs_layout_hdr *lo,
struct nfs4_state *open_state);
-int mark_matching_lsegs_invalid(struct pnfs_layout_hdr *lo,
+int pnfs_mark_matching_lsegs_invalid(struct pnfs_layout_hdr *lo,
struct list_head *tmp_list,
struct pnfs_layout_range *recall_range);
bool pnfs_roc(struct inode *ino);
void pnfs_roc_release(struct inode *ino);
void pnfs_roc_set_barrier(struct inode *ino, u32 barrier);
-bool pnfs_roc_drain(struct inode *ino, u32 *barrier);
+bool pnfs_roc_drain(struct inode *ino, u32 *barrier, struct rpc_task *task);
void pnfs_set_layoutcommit(struct nfs_write_data *wdata);
void pnfs_cleanup_layoutcommit(struct nfs4_layoutcommit_data *data);
int pnfs_layoutcommit_inode(struct inode *inode, bool sync);
/* nfs4_deviceid_flags */
enum {
NFS_DEVICEID_INVALID = 0, /* set when MDS clientid recalled */
+ NFS_DEVICEID_UNAVAILABLE, /* device temporarily unavailable */
};
/* pnfs_dev.c */
const struct pnfs_layoutdriver_type *ld;
const struct nfs_client *nfs_client;
unsigned long flags;
+ unsigned long timestamp_unavailable;
struct nfs4_deviceid deviceid;
atomic_t ref;
};
const struct nfs4_deviceid *);
struct nfs4_deviceid_node *nfs4_insert_deviceid_node(struct nfs4_deviceid_node *);
bool nfs4_put_deviceid_node(struct nfs4_deviceid_node *);
+void nfs4_mark_deviceid_unavailable(struct nfs4_deviceid_node *node);
+bool nfs4_test_deviceid_unavailable(struct nfs4_deviceid_node *node);
void nfs4_deviceid_purge_client(const struct nfs_client *);
-static inline void
-pnfs_mark_layout_returned(struct pnfs_layout_hdr *lo)
-{
- set_bit(NFS_LAYOUT_RETURNED, &lo->plh_flags);
-}
-
-static inline void
-pnfs_clear_layout_returned(struct pnfs_layout_hdr *lo)
-{
- clear_bit(NFS_LAYOUT_RETURNED, &lo->plh_flags);
-}
-
-static inline bool
-pnfs_test_layout_returned(struct pnfs_layout_hdr *lo)
-{
- return test_bit(NFS_LAYOUT_RETURNED, &lo->plh_flags);
-}
-
-static inline int lo_fail_bit(u32 iomode)
-{
- return iomode == IOMODE_RW ?
- NFS_LAYOUT_RW_FAILED : NFS_LAYOUT_RO_FAILED;
-}
-
static inline struct pnfs_layout_segment *
-get_lseg(struct pnfs_layout_segment *lseg)
+pnfs_get_lseg(struct pnfs_layout_segment *lseg)
{
if (lseg) {
atomic_inc(&lseg->pls_refcount);
}
static inline struct pnfs_layout_segment *
-get_lseg(struct pnfs_layout_segment *lseg)
+pnfs_get_lseg(struct pnfs_layout_segment *lseg)
{
return NULL;
}
-static inline void put_lseg(struct pnfs_layout_segment *lseg)
+static inline void pnfs_put_lseg(struct pnfs_layout_segment *lseg)
{
}
}
static inline bool
-pnfs_roc_drain(struct inode *ino, u32 *barrier)
+pnfs_roc_drain(struct inode *ino, u32 *barrier, struct rpc_task *task)
{
return false;
}
#define NFS4_DEVICE_ID_HASH_SIZE (1 << NFS4_DEVICE_ID_HASH_BITS)
#define NFS4_DEVICE_ID_HASH_MASK (NFS4_DEVICE_ID_HASH_SIZE - 1)
+#define PNFS_DEVICE_RETRY_TIMEOUT (120*HZ)
+
static struct hlist_head nfs4_deviceid_cache[NFS4_DEVICE_ID_HASH_SIZE];
static DEFINE_SPINLOCK(nfs4_deviceid_lock);
}
EXPORT_SYMBOL_GPL(nfs4_put_deviceid_node);
+void
+nfs4_mark_deviceid_unavailable(struct nfs4_deviceid_node *node)
+{
+ node->timestamp_unavailable = jiffies;
+ set_bit(NFS_DEVICEID_UNAVAILABLE, &node->flags);
+}
+EXPORT_SYMBOL_GPL(nfs4_mark_deviceid_unavailable);
+
+bool
+nfs4_test_deviceid_unavailable(struct nfs4_deviceid_node *node)
+{
+ if (test_bit(NFS_DEVICEID_UNAVAILABLE, &node->flags)) {
+ unsigned long start, end;
+
+ end = jiffies;
+ start = end - PNFS_DEVICE_RETRY_TIMEOUT;
+ if (time_in_range(node->timestamp_unavailable, start, end))
+ return true;
+ clear_bit(NFS_DEVICEID_UNAVAILABLE, &node->flags);
+ }
+ return false;
+}
+EXPORT_SYMBOL_GPL(nfs4_test_deviceid_unavailable);
+
static void
_deviceid_purge_client(const struct nfs_client *clp, long hash)
{
}
rcu_read_unlock();
}
+
Opt_sharecache, Opt_nosharecache,
Opt_resvport, Opt_noresvport,
Opt_fscache, Opt_nofscache,
+ Opt_migration, Opt_nomigration,
/* Mount options that take integer arguments */
Opt_port,
{ Opt_noresvport, "noresvport" },
{ Opt_fscache, "fsc" },
{ Opt_nofscache, "nofsc" },
+ { Opt_migration, "migration" },
+ { Opt_nomigration, "nomigration" },
{ Opt_port, "port=%s" },
{ Opt_rsize, "rsize=%s" },
if (nfss->options & NFS_OPTION_FSCACHE)
seq_printf(m, ",fsc");
+ if (nfss->options & NFS_OPTION_MIGRATION)
+ seq_printf(m, ",migration");
+
if (nfss->flags & NFS_MOUNT_LOOKUP_CACHE_NONEG) {
if (nfss->flags & NFS_MOUNT_LOOKUP_CACHE_NONE)
seq_printf(m, ",lookupcache=none");
string = match_strdup(args);
if (string == NULL)
return -ENOMEM;
- rc = strict_strtoul(string, 10, option);
+ rc = kstrtoul(string, 10, option);
kfree(string);
return rc;
kfree(mnt->fscache_uniq);
mnt->fscache_uniq = NULL;
break;
+ case Opt_migration:
+ mnt->options |= NFS_OPTION_MIGRATION;
+ break;
+ case Opt_nomigration:
+ mnt->options &= NFS_OPTION_MIGRATION;
+ break;
/*
* options that take numeric values
if (mnt->minorversion && mnt->version != 4)
goto out_minorversion_mismatch;
+ if (mnt->options & NFS_OPTION_MIGRATION &&
+ mnt->version != 4 && mnt->minorversion != 0)
+ goto out_migration_misuse;
+
/*
* verify that any proto=/mountproto= options match the address
* families in the addr=/mountaddr= options.
printk(KERN_INFO "NFS: mount option vers=%u does not support "
"minorversion=%u\n", mnt->version, mnt->minorversion);
return 0;
+out_migration_misuse:
+ printk(KERN_INFO
+ "NFS: 'migration' not supported for this NFS version\n");
+ return 0;
out_nomem:
printk(KERN_INFO "NFS: not enough memory to parse option\n");
return 0;
/*
* Clone an NFS2/3/4 server record on xdev traversal (FSID-change)
*/
-struct dentry *
+static struct dentry *
nfs_xdev_mount(struct file_system_type *fs_type, int flags,
const char *dev_name, void *raw_data)
{
bool nfs4_disable_idmapping = true;
unsigned short max_session_slots = NFS4_DEF_SLOT_TABLE_SIZE;
unsigned short send_implementation_id = 1;
+char nfs4_client_id_uniquifier[NFS4_CLIENT_ID_UNIQ_LEN] = "";
EXPORT_SYMBOL_GPL(nfs_callback_set_tcpport);
EXPORT_SYMBOL_GPL(nfs_callback_tcpport);
EXPORT_SYMBOL_GPL(nfs4_disable_idmapping);
EXPORT_SYMBOL_GPL(max_session_slots);
EXPORT_SYMBOL_GPL(send_implementation_id);
+EXPORT_SYMBOL_GPL(nfs4_client_id_uniquifier);
#define NFS_CALLBACK_MAXPORTNR (65535U)
if (!val)
return -EINVAL;
- ret = strict_strtoul(val, 0, &num);
+ ret = kstrtoul(val, 0, &num);
if (ret == -EINVAL || num > NFS_CALLBACK_MAXPORTNR)
return -EINVAL;
*((unsigned int *)kp->arg) = num;
module_param_named(callback_tcpport, nfs_callback_set_tcpport, portnr, 0644);
module_param(nfs_idmap_cache_timeout, int, 0644);
module_param(nfs4_disable_idmapping, bool, 0644);
+module_param_string(nfs4_unique_id, nfs4_client_id_uniquifier,
+ NFS4_CLIENT_ID_UNIQ_LEN, 0600);
MODULE_PARM_DESC(nfs4_disable_idmapping,
"Turn off NFSv4 idmapping when using 'sec=sys'");
module_param(max_session_slots, ushort, 0644);
module_param(send_implementation_id, ushort, 0644);
MODULE_PARM_DESC(send_implementation_id,
"Send implementation ID with NFSv4.1 exchange_id");
+MODULE_PARM_DESC(nfs4_unique_id, "nfs_client_id4 uniquifier string");
MODULE_ALIAS("nfs4");
#endif /* CONFIG_NFS_V4 */
int nfs_flush_incompatible(struct file *file, struct page *page)
{
struct nfs_open_context *ctx = nfs_file_open_context(file);
+ struct nfs_lock_context *l_ctx;
struct nfs_page *req;
int do_flush, status;
/*
req = nfs_page_find_request(page);
if (req == NULL)
return 0;
- do_flush = req->wb_page != page || req->wb_context != ctx ||
- req->wb_lock_context->lockowner != current->files ||
- req->wb_lock_context->pid != current->tgid;
+ l_ctx = req->wb_lock_context;
+ do_flush = req->wb_page != page || req->wb_context != ctx;
+ if (l_ctx) {
+ do_flush |= l_ctx->lockowner.l_owner != current->files
+ || l_ctx->lockowner.l_pid != current->tgid;
+ }
nfs_release_request(req);
if (!do_flush)
return 0;
/* We have a mismatch. Write the page again */
dprintk(" mismatch\n");
nfs_mark_request_dirty(req);
+ set_bit(NFS_CONTEXT_RESEND_WRITES, &req->wb_context->flags);
next:
nfs_unlock_and_release_request(req);
}
/* See Documentation/leds/leds-lp5523.txt */
struct lp5523_led_config {
+ const char *name;
u8 chan_nr;
u8 led_current; /* mA x10, 0 if led is not connected */
u8 max_current;
#include <linux/spinlock.h>
#include <linux/rwsem.h>
#include <linux/timer.h>
+#include <linux/workqueue.h>
struct device;
/*
struct timer_list blink_timer;
int blink_brightness;
+ struct work_struct set_brightness_work;
+ int delayed_set_value;
+
#ifdef CONFIG_LEDS_TRIGGERS
/* Protects the trigger data below */
struct rw_semaphore trigger_lock;
int mask;
};
+struct nfs_lockowner {
+ fl_owner_t l_owner;
+ pid_t l_pid;
+};
+
struct nfs_lock_context {
atomic_t count;
struct list_head list;
struct nfs_open_context *open_context;
- fl_owner_t lockowner;
- pid_t pid;
+ struct nfs_lockowner lockowner;
};
struct nfs4_state;
unsigned long flags;
#define NFS_CONTEXT_ERROR_WRITE (0)
+#define NFS_CONTEXT_RESEND_WRITES (1)
int error;
struct list_head list;
extern int nfs_post_op_update_inode(struct inode *inode, struct nfs_fattr *fattr);
extern int nfs_post_op_update_inode_force_wcc(struct inode *inode, struct nfs_fattr *fattr);
extern int nfs_getattr(struct vfsmount *, struct dentry *, struct kstat *);
+extern void nfs_access_add_cache(struct inode *, struct nfs_access_entry *);
+extern void nfs_access_set_mask(struct nfs_access_entry *, u32);
extern int nfs_permission(struct inode *, int);
extern int nfs_open(struct inode *, struct file *);
extern int nfs_release(struct inode *, struct file *);
unsigned long cl_flags; /* behavior switches */
#define NFS_CS_NORESVPORT 0 /* - use ephemeral src port */
#define NFS_CS_DISCRTRY 1 /* - disconnect on RPC retry */
+#define NFS_CS_MIGRATION 2 /* - transparent state migr */
struct sockaddr_storage cl_addr; /* server identifier */
size_t cl_addrlen;
char * cl_hostname; /* hostname of server */
/* The flags used for obtaining the clientid during EXCHANGE_ID */
u32 cl_exchange_flags;
struct nfs4_session *cl_session; /* shared session */
+ bool cl_preserve_clid;
struct nfs41_server_owner *cl_serverowner;
struct nfs41_server_scope *cl_serverscope;
struct nfs41_impl_id *cl_implid;
unsigned int namelen;
unsigned int options; /* extra options enabled by mount */
#define NFS_OPTION_FSCACHE 0x00000001 /* - local caching enabled */
+#define NFS_OPTION_MIGRATION 0x00000002 /* - NFSv4 migration enabled */
struct nfs_fsid fsid;
__u64 maxfilesize; /* maximum file size */
struct nfs4_layoutget {
struct nfs4_layoutget_args args;
struct nfs4_layoutget_res res;
- struct pnfs_layout_segment **lsegpp;
gfp_t gfp_flags;
};
struct nfs_seqid * seqid;
int open_flags;
fmode_t fmode;
+ u32 access;
__u64 clientid;
struct stateowner_id id;
union {
struct nfs4_string *owner;
struct nfs4_string *group_owner;
struct nfs4_sequence_res seq_res;
+ __u32 access_request;
+ __u32 access_supported;
+ __u32 access_result;
};
/*
+++ /dev/null
-/*
- * Simple driver for Texas Instruments LM3556 LED Flash driver chip (Rev0x03)
- * Copyright (C) 2012 Texas Instruments
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- */
-
-#ifndef __LINUX_LM3556_H
-#define __LINUX_LM3556_H
-
-#define LM3556_NAME "leds-lm3556"
-
-enum lm3556_pin_polarity {
- PIN_LOW_ACTIVE = 0,
- PIN_HIGH_ACTIVE,
-};
-
-enum lm3556_pin_enable {
- PIN_DISABLED = 0,
- PIN_ENABLED,
-};
-
-enum lm3556_strobe_usuage {
- STROBE_EDGE_DETECT = 0,
- STROBE_LEVEL_DETECT,
-};
-
-enum lm3556_indic_mode {
- INDIC_MODE_INTERNAL = 0,
- INDIC_MODE_EXTERNAL,
-};
-
-struct lm3556_platform_data {
- enum lm3556_pin_enable torch_pin_en;
- enum lm3556_pin_polarity torch_pin_polarity;
-
- enum lm3556_strobe_usuage strobe_usuage;
- enum lm3556_pin_enable strobe_pin_en;
- enum lm3556_pin_polarity strobe_pin_polarity;
-
- enum lm3556_pin_enable tx_pin_en;
- enum lm3556_pin_polarity tx_pin_polarity;
-
- enum lm3556_indic_mode indicator_mode;
-};
-
-#endif /* __LINUX_LM3556_H */
--- /dev/null
+/*
+ * Copyright (C) 2012 Texas Instruments
+ *
+ * License Terms: GNU General Public License v2
+ *
+ * Simple driver for Texas Instruments LM355x LED driver chip
+ *
+ * Author: G.Shark Jeong <gshark.jeong@gmail.com>
+ * Daniel Jeong <daniel.jeong@ti.com>
+ */
+
+#define LM355x_NAME "leds-lm355x"
+#define LM3554_NAME "leds-lm3554"
+#define LM3556_NAME "leds-lm3556"
+
+/* lm3554 : strobe def. on */
+enum lm355x_strobe {
+ LM355x_PIN_STROBE_DISABLE = 0x00,
+ LM355x_PIN_STROBE_ENABLE = 0x01,
+};
+
+enum lm355x_torch {
+ LM355x_PIN_TORCH_DISABLE = 0,
+ LM3554_PIN_TORCH_ENABLE = 0x80,
+ LM3556_PIN_TORCH_ENABLE = 0x10,
+};
+
+enum lm355x_tx2 {
+ LM355x_PIN_TX_DISABLE = 0,
+ LM3554_PIN_TX_ENABLE = 0x20,
+ LM3556_PIN_TX_ENABLE = 0x40,
+};
+
+enum lm355x_ntc {
+ LM355x_PIN_NTC_DISABLE = 0,
+ LM3554_PIN_NTC_ENABLE = 0x08,
+ LM3556_PIN_NTC_ENABLE = 0x80,
+};
+
+enum lm355x_pmode {
+ LM355x_PMODE_DISABLE = 0,
+ LM355x_PMODE_ENABLE = 0x04,
+};
+
+/*
+ * struct lm3554_platform_data
+ * @pin_strobe: strobe input
+ * @pin_torch : input pin
+ * lm3554-tx1/torch/gpio1
+ * lm3556-torch
+ * @pin_tx2 : input pin
+ * lm3554-envm/tx2/gpio2
+ * lm3556-tx pin
+ * @ntc_pin : output pin
+ * lm3554-ledi/ntc
+ * lm3556-temp pin
+ * @pass_mode : pass mode
+ */
+struct lm355x_platform_data {
+ enum lm355x_strobe pin_strobe;
+ enum lm355x_torch pin_tx1;
+ enum lm355x_tx2 pin_tx2;
+ enum lm355x_ntc ntc_pin;
+
+ enum lm355x_pmode pass_mode;
+};
--- /dev/null
+/*
+* Copyright (C) 2012 Texas Instruments
+*
+* License Terms: GNU General Public License v2
+*
+* Simple driver for Texas Instruments LM3642 LED driver chip
+*
+* Author: G.Shark Jeong <gshark.jeong@gmail.com>
+* Daniel Jeong <daniel.jeong@ti.com>
+*/
+
+#ifndef __LINUX_LM3642_H
+#define __LINUX_LM3642_H
+
+#define LM3642_NAME "leds-lm3642"
+
+enum lm3642_torch_pin_enable {
+ LM3642_TORCH_PIN_DISABLE = 0x00,
+ LM3642_TORCH_PIN_ENABLE = 0x10,
+};
+
+enum lm3642_strobe_pin_enable {
+ LM3642_STROBE_PIN_DISABLE = 0x00,
+ LM3642_STROBE_PIN_ENABLE = 0x20,
+};
+
+enum lm3642_tx_pin_enable {
+ LM3642_TX_PIN_DISABLE = 0x00,
+ LM3642_TX_PIN_ENABLE = 0x40,
+};
+
+struct lm3642_platform_data {
+ enum lm3642_torch_pin_enable torch_pin;
+ enum lm3642_strobe_pin_enable strobe_pin;
+ enum lm3642_tx_pin_enable tx_pin;
+};
+
+#endif /* __LINUX_LM3642_H */
--- /dev/null
+/*
+ * PCA9633 LED chip driver.
+ *
+ * Copyright 2012 bct electronic GmbH
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ */
+
+#ifndef __LINUX_PCA9633_H
+#define __LINUX_PCA9633_H
+#include <linux/leds.h>
+
+enum pca9633_outdrv {
+ PCA9633_OPEN_DRAIN,
+ PCA9633_TOTEM_POLE, /* aka push-pull */
+};
+
+struct pca9633_platform_data {
+ struct led_platform_data leds;
+ enum pca9633_outdrv outdrv;
+};
+
+#endif /* __LINUX_PCA9633_H*/
#ifndef __LINUX_PWM_H
#define __LINUX_PWM_H
+#include <linux/err.h>
#include <linux/of.h>
struct pwm_device;
struct seq_file;
+#if IS_ENABLED(CONFIG_PWM) || IS_ENABLED(CONFIG_HAVE_PWM)
/*
* pwm_request - request a PWM device
*/
* pwm_disable - stop a PWM output toggling
*/
void pwm_disable(struct pwm_device *pwm);
+#else
+static inline struct pwm_device *pwm_request(int pwm_id, const char *label)
+{
+ return ERR_PTR(-ENODEV);
+}
+
+static inline void pwm_free(struct pwm_device *pwm)
+{
+}
+
+static inline int pwm_config(struct pwm_device *pwm, int duty_ns, int period_ns)
+{
+ return -EINVAL;
+}
+
+static inline int pwm_enable(struct pwm_device *pwm)
+{
+ return -EINVAL;
+}
+
+static inline void pwm_disable(struct pwm_device *pwm)
+{
+}
+#endif
-#ifdef CONFIG_PWM
struct pwm_chip;
+/**
+ * enum pwm_polarity - polarity of a PWM signal
+ * @PWM_POLARITY_NORMAL: a high signal for the duration of the duty-
+ * cycle, followed by a low signal for the remainder of the pulse
+ * period
+ * @PWM_POLARITY_INVERSED: a low signal for the duration of the duty-
+ * cycle, followed by a high signal for the remainder of the pulse
+ * period
+ */
+enum pwm_polarity {
+ PWM_POLARITY_NORMAL,
+ PWM_POLARITY_INVERSED,
+};
+
enum {
PWMF_REQUESTED = 1 << 0,
PWMF_ENABLED = 1 << 1,
return pwm ? pwm->period : 0;
}
+/*
+ * pwm_set_polarity - configure the polarity of a PWM signal
+ */
+int pwm_set_polarity(struct pwm_device *pwm, enum pwm_polarity polarity);
+
/**
* struct pwm_ops - PWM controller operations
* @request: optional hook for requesting a PWM
* @free: optional hook for freeing a PWM
* @config: configure duty cycles and period length for this PWM
+ * @set_polarity: configure the polarity of this PWM
* @enable: enable PWM output toggling
* @disable: disable PWM output toggling
* @dbg_show: optional routine to show contents in debugfs
int (*config)(struct pwm_chip *chip,
struct pwm_device *pwm,
int duty_ns, int period_ns);
+ int (*set_polarity)(struct pwm_chip *chip,
+ struct pwm_device *pwm,
+ enum pwm_polarity polarity);
int (*enable)(struct pwm_chip *chip,
struct pwm_device *pwm);
void (*disable)(struct pwm_chip *chip,
unsigned int of_pwm_n_cells;
};
+#if IS_ENABLED(CONFIG_PWM)
int pwm_set_chip_data(struct pwm_device *pwm, void *data);
void *pwm_get_chip_data(struct pwm_device *pwm);
struct pwm_device *pwm_get(struct device *dev, const char *consumer);
void pwm_put(struct pwm_device *pwm);
+struct pwm_device *devm_pwm_get(struct device *dev, const char *consumer);
+void devm_pwm_put(struct device *dev, struct pwm_device *pwm);
+#else
+static inline int pwm_set_chip_data(struct pwm_device *pwm, void *data)
+{
+ return -EINVAL;
+}
+
+static inline void *pwm_get_chip_data(struct pwm_device *pwm)
+{
+ return NULL;
+}
+
+static inline int pwmchip_add(struct pwm_chip *chip)
+{
+ return -EINVAL;
+}
+
+static inline int pwmchip_remove(struct pwm_chip *chip)
+{
+ return -EINVAL;
+}
+
+static inline struct pwm_device *pwm_request_from_chip(struct pwm_chip *chip,
+ unsigned int index,
+ const char *label)
+{
+ return ERR_PTR(-ENODEV);
+}
+
+static inline struct pwm_device *pwm_get(struct device *dev,
+ const char *consumer)
+{
+ return ERR_PTR(-ENODEV);
+}
+
+static inline void pwm_put(struct pwm_device *pwm)
+{
+}
+
+static inline struct pwm_device *devm_pwm_get(struct device *dev,
+ const char *consumer)
+{
+ return ERR_PTR(-ENODEV);
+}
+
+static inline void devm_pwm_put(struct device *dev, struct pwm_device *pwm)
+{
+}
+#endif
+
struct pwm_lookup {
struct list_head list;
const char *provider;
.con_id = _con_id, \
}
+#if IS_ENABLED(CONFIG_PWM)
void pwm_add_table(struct pwm_lookup *table, size_t num);
-
+#else
+static inline void pwm_add_table(struct pwm_lookup *table, size_t num)
+{
+}
#endif
#endif /* __LINUX_PWM_H */
const struct rpc_program *, u32);
void rpc_task_reset_client(struct rpc_task *task, struct rpc_clnt *clnt);
struct rpc_clnt *rpc_clone_client(struct rpc_clnt *);
+struct rpc_clnt *rpc_clone_client_set_auth(struct rpc_clnt *,
+ rpc_authflavor_t);
void rpc_shutdown_client(struct rpc_clnt *);
void rpc_release_client(struct rpc_clnt *);
void rpc_task_release_client(struct rpc_task *);
unsigned int min_reqs; /* min number of slots */
atomic_t num_reqs; /* total slots */
unsigned long state; /* transport state */
- unsigned char shutdown : 1, /* being shut down */
- resvport : 1; /* use a reserved port */
+ unsigned char resvport : 1; /* use a reserved port */
unsigned int swapper; /* we're swapping over this
transport */
unsigned int bind_index; /* bind function index */
u8 transport_type;
- unsigned int fua_write_emulated : 1;
- unsigned int write_cache_emulated : 1;
-
int (*attach_hba)(struct se_hba *, u32);
void (*detach_hba)(struct se_hba *);
int (*pmode_enable_hba)(struct se_hba *, unsigned long);
int (*queue_data_in)(struct se_cmd *);
int (*queue_status)(struct se_cmd *);
int (*queue_tm_rsp)(struct se_cmd *);
- u16 (*set_fabric_sense_len)(struct se_cmd *, u32);
- u16 (*get_fabric_sense_len)(void);
/*
* fabric module calls for target_core_fabric_configfs.c
*/
struct se_session *, u32, int, int, unsigned char *);
int transport_lookup_cmd_lun(struct se_cmd *, u32);
int target_setup_cmd_from_cdb(struct se_cmd *, unsigned char *);
+int target_submit_cmd_map_sgls(struct se_cmd *, struct se_session *,
+ unsigned char *, unsigned char *, u32, u32, int, int, int,
+ struct scatterlist *, u32, struct scatterlist *, u32);
int target_submit_cmd(struct se_cmd *, struct se_session *, unsigned char *,
unsigned char *, u32, u32, int, int, int);
int target_submit_tmr(struct se_cmd *se_cmd, struct se_session *se_sess,
}
return q;
err:
- dprintk("RPC: gss_fill_context returning %ld\n", -PTR_ERR(p));
+ dprintk("RPC: %s returning %ld\n", __func__, -PTR_ERR(p));
return p;
}
if (pos->uid != uid)
continue;
atomic_inc(&pos->count);
- dprintk("RPC: gss_find_upcall found msg %p\n", pos);
+ dprintk("RPC: %s found msg %p\n", __func__, pos);
return pos;
}
- dprintk("RPC: gss_find_upcall found nothing\n");
+ dprintk("RPC: %s found nothing\n", __func__);
return NULL;
}
struct rpc_pipe *pipe;
int err = 0;
- dprintk("RPC: %5u gss_refresh_upcall for uid %u\n", task->tk_pid,
- cred->cr_uid);
+ dprintk("RPC: %5u %s for uid %u\n",
+ task->tk_pid, __func__, cred->cr_uid);
gss_msg = gss_setup_upcall(task->tk_client, gss_auth, cred);
if (PTR_ERR(gss_msg) == -EAGAIN) {
/* XXX: warning on the first, under the assumption we
spin_unlock(&pipe->lock);
gss_release_msg(gss_msg);
out:
- dprintk("RPC: %5u gss_refresh_upcall for uid %u result %d\n",
- task->tk_pid, cred->cr_uid, err);
+ dprintk("RPC: %5u %s for uid %u result %d\n",
+ task->tk_pid, __func__, cred->cr_uid, err);
return err;
}
DEFINE_WAIT(wait);
int err = 0;
- dprintk("RPC: gss_upcall for uid %u\n", cred->cr_uid);
+ dprintk("RPC: %s for uid %u\n", __func__, cred->cr_uid);
retry:
gss_msg = gss_setup_upcall(gss_auth->client, gss_auth, cred);
if (PTR_ERR(gss_msg) == -EAGAIN) {
finish_wait(&gss_msg->waitqueue, &wait);
gss_release_msg(gss_msg);
out:
- dprintk("RPC: gss_create_upcall for uid %u result %d\n",
- cred->cr_uid, err);
+ dprintk("RPC: %s for uid %u result %d\n",
+ __func__, cred->cr_uid, err);
return err;
}
err:
kfree(buf);
out:
- dprintk("RPC: gss_pipe_downcall returning %Zd\n", err);
+ dprintk("RPC: %s returning %Zd\n", __func__, err);
return err;
}
struct gss_upcall_msg *gss_msg = container_of(msg, struct gss_upcall_msg, msg);
if (msg->errno < 0) {
- dprintk("RPC: gss_pipe_destroy_msg releasing msg %p\n",
- gss_msg);
+ dprintk("RPC: %s releasing msg %p\n",
+ __func__, gss_msg);
atomic_inc(&gss_msg->count);
gss_unhash_msg(gss_msg);
if (msg->errno == -ETIMEDOUT)
static void
gss_do_free_ctx(struct gss_cl_ctx *ctx)
{
- dprintk("RPC: gss_free_ctx\n");
+ dprintk("RPC: %s\n", __func__);
gss_delete_sec_context(&ctx->gc_gss_ctx);
kfree(ctx->gc_wire_ctx.data);
static void
gss_free_cred(struct gss_cred *gss_cred)
{
- dprintk("RPC: gss_free_cred %p\n", gss_cred);
+ dprintk("RPC: %s cred=%p\n", __func__, gss_cred);
kfree(gss_cred);
}
struct gss_cred *cred = NULL;
int err = -ENOMEM;
- dprintk("RPC: gss_create_cred for uid %d, flavor %d\n",
- acred->uid, auth->au_flavor);
+ dprintk("RPC: %s for uid %d, flavor %d\n",
+ __func__, acred->uid, auth->au_flavor);
if (!(cred = kzalloc(sizeof(*cred), GFP_NOFS)))
goto out_err;
return &cred->gc_base;
out_err:
- dprintk("RPC: gss_create_cred failed with error %d\n", err);
+ dprintk("RPC: %s failed with error %d\n", __func__, err);
return ERR_PTR(err);
}
struct kvec iov;
struct xdr_buf verf_buf;
- dprintk("RPC: %5u gss_marshal\n", task->tk_pid);
+ dprintk("RPC: %5u %s\n", task->tk_pid, __func__);
*p++ = htonl(RPC_AUTH_GSS);
cred_len = p++;
u32 flav,len;
u32 maj_stat;
- dprintk("RPC: %5u gss_validate\n", task->tk_pid);
+ dprintk("RPC: %5u %s\n", task->tk_pid, __func__);
flav = ntohl(*p++);
if ((len = ntohl(*p++)) > RPC_MAX_AUTH_SIZE)
if (maj_stat == GSS_S_CONTEXT_EXPIRED)
clear_bit(RPCAUTH_CRED_UPTODATE, &cred->cr_flags);
if (maj_stat) {
- dprintk("RPC: %5u gss_validate: gss_verify_mic returned "
- "error 0x%08x\n", task->tk_pid, maj_stat);
+ dprintk("RPC: %5u %s: gss_verify_mic returned error 0x%08x\n",
+ task->tk_pid, __func__, maj_stat);
goto out_bad;
}
/* We leave it to unwrap to calculate au_rslack. For now we just
* calculate the length of the verifier: */
cred->cr_auth->au_verfsize = XDR_QUADLEN(len) + 2;
gss_put_ctx(ctx);
- dprintk("RPC: %5u gss_validate: gss_verify_mic succeeded.\n",
- task->tk_pid);
+ dprintk("RPC: %5u %s: gss_verify_mic succeeded.\n",
+ task->tk_pid, __func__);
return p + XDR_QUADLEN(len);
out_bad:
gss_put_ctx(ctx);
- dprintk("RPC: %5u gss_validate failed.\n", task->tk_pid);
+ dprintk("RPC: %5u %s failed.\n", task->tk_pid, __func__);
return NULL;
}
struct gss_cl_ctx *ctx = gss_cred_get_ctx(cred);
int status = -EIO;
- dprintk("RPC: %5u gss_wrap_req\n", task->tk_pid);
+ dprintk("RPC: %5u %s\n", task->tk_pid, __func__);
if (ctx->gc_proc != RPC_GSS_PROC_DATA) {
/* The spec seems a little ambiguous here, but I think that not
* wrapping context destruction requests makes the most sense.
}
out:
gss_put_ctx(ctx);
- dprintk("RPC: %5u gss_wrap_req returning %d\n", task->tk_pid, status);
+ dprintk("RPC: %5u %s returning %d\n", task->tk_pid, __func__, status);
return status;
}
status = gss_unwrap_req_decode(decode, rqstp, p, obj);
out:
gss_put_ctx(ctx);
- dprintk("RPC: %5u gss_unwrap_resp returning %d\n", task->tk_pid,
- status);
+ dprintk("RPC: %5u %s returning %d\n",
+ task->tk_pid, __func__, status);
return status;
}
* same transport while varying parameters such as the authentication
* flavour.
*/
-struct rpc_clnt *
-rpc_clone_client(struct rpc_clnt *clnt)
+static struct rpc_clnt *__rpc_clone_client(struct rpc_create_args *args,
+ struct rpc_clnt *clnt)
{
- struct rpc_clnt *new;
struct rpc_xprt *xprt;
- int err = -ENOMEM;
+ struct rpc_clnt *new;
+ int err;
- new = kmemdup(clnt, sizeof(*new), GFP_KERNEL);
- if (!new)
- goto out_no_clnt;
- new->cl_parent = clnt;
- /* Turn off autobind on clones */
- new->cl_autobind = 0;
- INIT_LIST_HEAD(&new->cl_tasks);
- spin_lock_init(&new->cl_lock);
- rpc_init_rtt(&new->cl_rtt_default, clnt->cl_timeout->to_initval);
- new->cl_metrics = rpc_alloc_iostats(clnt);
- if (new->cl_metrics == NULL)
- goto out_no_stats;
- if (clnt->cl_principal) {
- new->cl_principal = kstrdup(clnt->cl_principal, GFP_KERNEL);
- if (new->cl_principal == NULL)
- goto out_no_principal;
- }
+ err = -ENOMEM;
rcu_read_lock();
xprt = xprt_get(rcu_dereference(clnt->cl_xprt));
rcu_read_unlock();
if (xprt == NULL)
- goto out_no_transport;
- rcu_assign_pointer(new->cl_xprt, xprt);
- atomic_set(&new->cl_count, 1);
- err = rpc_setup_pipedir(new, clnt->cl_program->pipe_dir_name);
- if (err != 0)
- goto out_no_path;
- rpc_clnt_set_nodename(new, utsname()->nodename);
- if (new->cl_auth)
- atomic_inc(&new->cl_auth->au_count);
+ goto out_err;
+ args->servername = xprt->servername;
+
+ new = rpc_new_client(args, xprt);
+ if (IS_ERR(new)) {
+ err = PTR_ERR(new);
+ goto out_put;
+ }
+
atomic_inc(&clnt->cl_count);
- rpc_register_client(new);
- rpciod_up();
+ new->cl_parent = clnt;
+
+ /* Turn off autobind on clones */
+ new->cl_autobind = 0;
+ new->cl_softrtry = clnt->cl_softrtry;
+ new->cl_discrtry = clnt->cl_discrtry;
+ new->cl_chatty = clnt->cl_chatty;
return new;
-out_no_path:
+
+out_put:
xprt_put(xprt);
-out_no_transport:
- kfree(new->cl_principal);
-out_no_principal:
- rpc_free_iostats(new->cl_metrics);
-out_no_stats:
- kfree(new);
-out_no_clnt:
+out_err:
dprintk("RPC: %s: returned error %d\n", __func__, err);
return ERR_PTR(err);
}
+
+/**
+ * rpc_clone_client - Clone an RPC client structure
+ *
+ * @clnt: RPC client whose parameters are copied
+ *
+ * Returns a fresh RPC client or an ERR_PTR.
+ */
+struct rpc_clnt *rpc_clone_client(struct rpc_clnt *clnt)
+{
+ struct rpc_create_args args = {
+ .program = clnt->cl_program,
+ .prognumber = clnt->cl_prog,
+ .version = clnt->cl_vers,
+ .authflavor = clnt->cl_auth->au_flavor,
+ .client_name = clnt->cl_principal,
+ };
+ return __rpc_clone_client(&args, clnt);
+}
EXPORT_SYMBOL_GPL(rpc_clone_client);
+/**
+ * rpc_clone_client_set_auth - Clone an RPC client structure and set its auth
+ *
+ * @clnt: RPC client whose parameters are copied
+ * @auth: security flavor for new client
+ *
+ * Returns a fresh RPC client or an ERR_PTR.
+ */
+struct rpc_clnt *
+rpc_clone_client_set_auth(struct rpc_clnt *clnt, rpc_authflavor_t flavor)
+{
+ struct rpc_create_args args = {
+ .program = clnt->cl_program,
+ .prognumber = clnt->cl_prog,
+ .version = clnt->cl_vers,
+ .authflavor = flavor,
+ .client_name = clnt->cl_principal,
+ };
+ return __rpc_clone_client(&args, clnt);
+}
+EXPORT_SYMBOL_GPL(rpc_clone_client_set_auth);
+
/*
* Kill all tasks for the given client.
* XXX: kill their descendants as well?
return -ENOMEM;
if (rpc_populate(root, files, RPCAUTH_lockd, RPCAUTH_RootEOF, NULL))
return -ENOMEM;
- dprintk("RPC: sending pipefs MOUNT notification for net %p%s\n", net,
- NET_NAME(net));
+ dprintk("RPC: sending pipefs MOUNT notification for net %p%s\n",
+ net, NET_NAME(net));
sn->pipefs_sb = sb;
err = blocking_notifier_call_chain(&rpc_pipefs_notifier_list,
RPC_PIPEFS_MOUNT,
sn->pipefs_sb = NULL;
mutex_unlock(&sn->pipefs_sb_lock);
put_net(net);
- dprintk("RPC: sending pipefs UMOUNT notification for net %p%s\n", net,
- NET_NAME(net));
+ dprintk("RPC: sending pipefs UMOUNT notification for net %p%s\n",
+ net, NET_NAME(net));
blocking_notifier_call_chain(&rpc_pipefs_notifier_list,
RPC_PIPEFS_UMOUNT,
sb);
* Create the rpciod thread and wait for it to start.
*/
dprintk("RPC: creating workqueue rpciod\n");
- wq = alloc_workqueue("rpciod", WQ_MEM_RECLAIM, 0);
+ wq = alloc_workqueue("rpciod", WQ_MEM_RECLAIM, 1);
rpciod_workqueue = wq;
return rpciod_workqueue != NULL;
}
if (xdr->nwords == 0)
return 0;
- if (nwords > xdr->nwords) {
- nwords = xdr->nwords;
- len = nwords << 2;
- }
/* Realign pages to current pointer position */
iov = buf->head;
- if (iov->iov_len > cur)
+ if (iov->iov_len > cur) {
xdr_shrink_bufhead(buf, iov->iov_len - cur);
+ xdr->nwords = XDR_QUADLEN(buf->len - cur);
+ }
- /* Truncate page data and move it into the tail */
- if (buf->page_len > len)
+ if (nwords > xdr->nwords) {
+ nwords = xdr->nwords;
+ len = nwords << 2;
+ }
+ if (buf->page_len <= len)
+ len = buf->page_len;
+ else if (nwords < xdr->nwords) {
+ /* Truncate page data and move it into the tail */
xdr_shrink_pagelen(buf, buf->page_len - len);
- xdr->nwords = XDR_QUADLEN(buf->len - cur);
+ xdr->nwords = XDR_QUADLEN(buf->len - cur);
+ }
return len;
}
static void xprt_clear_locked(struct rpc_xprt *xprt)
{
xprt->snd_task = NULL;
- if (!test_bit(XPRT_CLOSE_WAIT, &xprt->state) || xprt->shutdown) {
+ if (!test_bit(XPRT_CLOSE_WAIT, &xprt->state)) {
smp_mb__before_clear_bit();
clear_bit(XPRT_LOCKED, &xprt->state);
smp_mb__after_clear_bit();
*/
void xprt_write_space(struct rpc_xprt *xprt)
{
- if (unlikely(xprt->shutdown))
- return;
-
spin_lock_bh(&xprt->transport_lock);
if (xprt->snd_task) {
dprintk("RPC: write space: waking waiting task on "
struct rpc_xprt *xprt = (struct rpc_xprt *)data;
spin_lock(&xprt->transport_lock);
- if (!list_empty(&xprt->recv) || xprt->shutdown)
+ if (!list_empty(&xprt->recv))
goto out_abort;
if (test_and_set_bit(XPRT_LOCKED, &xprt->state))
goto out_abort;
static void xprt_destroy(struct rpc_xprt *xprt)
{
dprintk("RPC: destroying transport %p\n", xprt);
- xprt->shutdown = 1;
del_timer_sync(&xprt->timer);
rpc_destroy_wait_queue(&xprt->binding);
struct rpc_xprt *xprt = &r_xprt->xprt;
int rc = 0;
- if (!xprt->shutdown) {
- current->flags |= PF_FSTRANS;
- xprt_clear_connected(xprt);
-
- dprintk("RPC: %s: %sconnect\n", __func__,
- r_xprt->rx_ep.rep_connected != 0 ? "re" : "");
- rc = rpcrdma_ep_connect(&r_xprt->rx_ep, &r_xprt->rx_ia);
- if (rc)
- goto out;
- }
- goto out_clear;
+ current->flags |= PF_FSTRANS;
+ xprt_clear_connected(xprt);
+
+ dprintk("RPC: %s: %sconnect\n", __func__,
+ r_xprt->rx_ep.rep_connected != 0 ? "re" : "");
+ rc = rpcrdma_ep_connect(&r_xprt->rx_ep, &r_xprt->rx_ia);
+ if (rc)
+ xprt_wake_pending_tasks(xprt, rc);
-out:
- xprt_wake_pending_tasks(xprt, rc);
-out_clear:
dprintk("RPC: %s: exit\n", __func__);
xprt_clear_connecting(xprt);
current->flags &= ~PF_FSTRANS;
if (skb == NULL)
goto out;
- if (xprt->shutdown)
- goto dropit;
-
repsize = skb->len - sizeof(rpc_fraghdr);
if (repsize < 4) {
dprintk("RPC: impossible RPC reply size %d\n", repsize);
if ((skb = skb_recv_datagram(sk, 0, 1, &err)) == NULL)
goto out;
- if (xprt->shutdown)
- goto dropit;
-
repsize = skb->len - sizeof(struct udphdr);
if (repsize < 4) {
dprintk("RPC: impossible RPC reply size %d!\n", repsize);
read_unlock_bh(&sk->sk_callback_lock);
}
+/*
+ * Helper function to force a TCP close if the server is sending
+ * junk and/or it has put us in CLOSE_WAIT
+ */
+static void xs_tcp_force_close(struct rpc_xprt *xprt)
+{
+ set_bit(XPRT_CONNECTION_CLOSE, &xprt->state);
+ xprt_force_disconnect(xprt);
+}
+
static inline void xs_tcp_read_fraghdr(struct rpc_xprt *xprt, struct xdr_skb_reader *desc)
{
struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt);
/* Sanity check of the record length */
if (unlikely(transport->tcp_reclen < 8)) {
dprintk("RPC: invalid TCP record fragment length\n");
- xprt_force_disconnect(xprt);
+ xs_tcp_force_close(xprt);
return;
}
dprintk("RPC: reading TCP record fragment of length %d\n",
break;
default:
dprintk("RPC: invalid request message type\n");
- xprt_force_disconnect(&transport->xprt);
+ xs_tcp_force_close(&transport->xprt);
}
xs_tcp_check_fraghdr(transport);
}
read_lock_bh(&sk->sk_callback_lock);
if (!(xprt = xprt_from_sock(sk)))
goto out;
- if (xprt->shutdown)
- goto out;
-
/* Any data means we had a useful conversation, so
* the we don't need to delay the next reconnect
*/
static void xs_sock_mark_closed(struct rpc_xprt *xprt)
{
smp_mb__before_clear_bit();
+ clear_bit(XPRT_CONNECTION_ABORT, &xprt->state);
+ clear_bit(XPRT_CONNECTION_CLOSE, &xprt->state);
clear_bit(XPRT_CLOSE_WAIT, &xprt->state);
clear_bit(XPRT_CLOSING, &xprt->state);
smp_mb__after_clear_bit();
break;
case TCP_CLOSE_WAIT:
/* The server initiated a shutdown of the socket */
- xprt_force_disconnect(xprt);
xprt->connect_cookie++;
+ xs_tcp_force_close(xprt);
case TCP_CLOSING:
/*
* If the server closed down the connection, make sure that
struct socket *sock;
int status = -EIO;
- if (xprt->shutdown)
- goto out;
-
current->flags |= PF_FSTRANS;
clear_bit(XPRT_CONNECTION_ABORT, &xprt->state);
struct socket *sock = transport->sock;
int status = -EIO;
- if (xprt->shutdown)
- goto out;
-
current->flags |= PF_FSTRANS;
/* Start by resetting any existing state */
struct rpc_xprt *xprt = &transport->xprt;
int status = -EIO;
- if (xprt->shutdown)
- goto out;
-
current->flags |= PF_FSTRANS;
if (!sock) {
/* We're probably in TIME_WAIT. Get rid of existing socket,
* and retry
*/
- set_bit(XPRT_CONNECTION_CLOSE, &xprt->state);
- xprt_force_disconnect(xprt);
+ xs_tcp_force_close(xprt);
break;
case -ECONNREFUSED:
case -ECONNRESET:
static struct rpc_xprt_ops bc_tcp_ops = {
.reserve_xprt = xprt_reserve_xprt,
.release_xprt = xprt_release_xprt,
+ .alloc_slot = xprt_alloc_slot,
.rpcbind = xs_local_rpcbind,
.buf_alloc = bc_malloc,
.buf_free = bc_free,
git.openpandora.org / pandora-kernel.git / commitdiff