#include "lpfc_compat.h"
#include "lpfc_crtn.h"
+#define LPFC_DEF_DEVLOSS_TMO 30
+#define LPFC_MIN_DEVLOSS_TMO 1
+#define LPFC_MAX_DEVLOSS_TMO 255
static void
lpfc_jedec_to_ascii(int incr, char hdw[])
lpfc_board_mode_show, lpfc_board_mode_store);
static CLASS_DEVICE_ATTR(issue_reset, S_IWUSR, NULL, lpfc_issue_reset);
+
+static char *lpfc_soft_wwpn_key = "C99G71SL8032A";
+
+static ssize_t
+lpfc_soft_wwpn_enable_store(struct class_device *cdev, const char *buf,
+ size_t count)
+{
+ struct Scsi_Host *host = class_to_shost(cdev);
+ struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
+ unsigned int cnt = count;
+
+ /*
+ * We're doing a simple sanity check for soft_wwpn setting.
+ * We require that the user write a specific key to enable
+ * the soft_wwpn attribute to be settable. Once the attribute
+ * is written, the enable key resets. If further updates are
+ * desired, the key must be written again to re-enable the
+ * attribute.
+ *
+ * The "key" is not secret - it is a hardcoded string shown
+ * here. The intent is to protect against the random user or
+ * application that is just writing attributes.
+ */
+
+ /* count may include a LF at end of string */
+ if (buf[cnt-1] == '\n')
+ cnt--;
+
+ if ((cnt != strlen(lpfc_soft_wwpn_key)) ||
+ (strncmp(buf, lpfc_soft_wwpn_key, strlen(lpfc_soft_wwpn_key)) != 0))
+ return -EINVAL;
+
+ phba->soft_wwpn_enable = 1;
+ return count;
+}
+static CLASS_DEVICE_ATTR(lpfc_soft_wwpn_enable, S_IWUSR, NULL,
+ lpfc_soft_wwpn_enable_store);
+
+static ssize_t
+lpfc_soft_wwpn_show(struct class_device *cdev, char *buf)
+{
+ struct Scsi_Host *host = class_to_shost(cdev);
+ struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
+ return snprintf(buf, PAGE_SIZE, "0x%llx\n", phba->cfg_soft_wwpn);
+}
+
+
+static ssize_t
+lpfc_soft_wwpn_store(struct class_device *cdev, const char *buf, size_t count)
+{
+ struct Scsi_Host *host = class_to_shost(cdev);
+ struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
+ struct completion online_compl;
+ int stat1=0, stat2=0;
+ unsigned int i, j, cnt=count;
+ u8 wwpn[8];
+
+ /* count may include a LF at end of string */
+ if (buf[cnt-1] == '\n')
+ cnt--;
+
+ if (!phba->soft_wwpn_enable || (cnt < 16) || (cnt > 18) ||
+ ((cnt == 17) && (*buf++ != 'x')) ||
+ ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x'))))
+ return -EINVAL;
+
+ phba->soft_wwpn_enable = 0;
+
+ memset(wwpn, 0, sizeof(wwpn));
+
+ /* Validate and store the new name */
+ for (i=0, j=0; i < 16; i++) {
+ if ((*buf >= 'a') && (*buf <= 'f'))
+ j = ((j << 4) | ((*buf++ -'a') + 10));
+ else if ((*buf >= 'A') && (*buf <= 'F'))
+ j = ((j << 4) | ((*buf++ -'A') + 10));
+ else if ((*buf >= '0') && (*buf <= '9'))
+ j = ((j << 4) | (*buf++ -'0'));
+ else
+ return -EINVAL;
+ if (i % 2) {
+ wwpn[i/2] = j & 0xff;
+ j = 0;
+ }
+ }
+ phba->cfg_soft_wwpn = wwn_to_u64(wwpn);
+ fc_host_port_name(host) = phba->cfg_soft_wwpn;
+
+ dev_printk(KERN_NOTICE, &phba->pcidev->dev,
+ "lpfc%d: Reinitializing to use soft_wwpn\n", phba->brd_no);
+
+ init_completion(&online_compl);
+ lpfc_workq_post_event(phba, &stat1, &online_compl, LPFC_EVT_OFFLINE);
+ wait_for_completion(&online_compl);
+ if (stat1)
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "%d:0463 lpfc_soft_wwpn attribute set failed to reinit "
+ "adapter - %d\n", phba->brd_no, stat1);
+
+ init_completion(&online_compl);
+ lpfc_workq_post_event(phba, &stat2, &online_compl, LPFC_EVT_ONLINE);
+ wait_for_completion(&online_compl);
+ if (stat2)
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "%d:0464 lpfc_soft_wwpn attribute set failed to reinit "
+ "adapter - %d\n", phba->brd_no, stat2);
+
+ return (stat1 || stat2) ? -EIO : count;
+}
+static CLASS_DEVICE_ATTR(lpfc_soft_wwpn, S_IRUGO | S_IWUSR,\
+ lpfc_soft_wwpn_show, lpfc_soft_wwpn_store);
+
+
static int lpfc_poll = 0;
module_param(lpfc_poll, int, 0);
MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:"
static CLASS_DEVICE_ATTR(lpfc_poll, S_IRUGO | S_IWUSR,
lpfc_poll_show, lpfc_poll_store);
+/*
+# lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear
+# until the timer expires. Value range is [0,255]. Default value is 30.
+*/
+static int lpfc_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
+static int lpfc_devloss_tmo = LPFC_DEF_DEVLOSS_TMO;
+module_param(lpfc_nodev_tmo, int, 0);
+MODULE_PARM_DESC(lpfc_nodev_tmo,
+ "Seconds driver will hold I/O waiting "
+ "for a device to come back");
+static ssize_t
+lpfc_nodev_tmo_show(struct class_device *cdev, char *buf)
+{
+ struct Scsi_Host *host = class_to_shost(cdev);
+ struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
+ int val = 0;
+ val = phba->cfg_devloss_tmo;
+ return snprintf(buf, PAGE_SIZE, "%d\n",
+ phba->cfg_devloss_tmo);
+}
+
+static int
+lpfc_nodev_tmo_init(struct lpfc_hba *phba, int val)
+{
+ static int warned;
+ if (phba->cfg_devloss_tmo != LPFC_DEF_DEVLOSS_TMO) {
+ phba->cfg_nodev_tmo = phba->cfg_devloss_tmo;
+ if (!warned && val != LPFC_DEF_DEVLOSS_TMO) {
+ warned = 1;
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "%d:0402 Ignoring nodev_tmo module "
+ "parameter because devloss_tmo is"
+ " set.\n",
+ phba->brd_no);
+ }
+ return 0;
+ }
+
+ if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
+ phba->cfg_nodev_tmo = val;
+ phba->cfg_devloss_tmo = val;
+ return 0;
+ }
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "%d:0400 lpfc_nodev_tmo attribute cannot be set to %d, "
+ "allowed range is [%d, %d]\n",
+ phba->brd_no, val,
+ LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
+ phba->cfg_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
+ return -EINVAL;
+}
+
+static int
+lpfc_nodev_tmo_set(struct lpfc_hba *phba, int val)
+{
+ if (phba->dev_loss_tmo_changed ||
+ (lpfc_devloss_tmo != LPFC_DEF_DEVLOSS_TMO)) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "%d:0401 Ignoring change to nodev_tmo "
+ "because devloss_tmo is set.\n",
+ phba->brd_no);
+ return 0;
+ }
+
+ if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
+ phba->cfg_nodev_tmo = val;
+ phba->cfg_devloss_tmo = val;
+ return 0;
+ }
+
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "%d:0403 lpfc_nodev_tmo attribute cannot be set to %d, "
+ "allowed range is [%d, %d]\n",
+ phba->brd_no, val, LPFC_MIN_DEVLOSS_TMO,
+ LPFC_MAX_DEVLOSS_TMO);
+ return -EINVAL;
+}
+
+lpfc_param_store(nodev_tmo)
+
+static CLASS_DEVICE_ATTR(lpfc_nodev_tmo, S_IRUGO | S_IWUSR,
+ lpfc_nodev_tmo_show, lpfc_nodev_tmo_store);
+
+/*
+# lpfc_devloss_tmo: If set, it will hold all I/O errors on devices that
+# disappear until the timer expires. Value range is [0,255]. Default
+# value is 30.
+*/
+module_param(lpfc_devloss_tmo, int, 0);
+MODULE_PARM_DESC(lpfc_devloss_tmo,
+ "Seconds driver will hold I/O waiting "
+ "for a device to come back");
+lpfc_param_init(devloss_tmo, LPFC_DEF_DEVLOSS_TMO,
+ LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO)
+lpfc_param_show(devloss_tmo)
+static int
+lpfc_devloss_tmo_set(struct lpfc_hba *phba, int val)
+{
+ if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
+ phba->cfg_nodev_tmo = val;
+ phba->cfg_devloss_tmo = val;
+ phba->dev_loss_tmo_changed = 1;
+ return 0;
+ }
+
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "%d:0404 lpfc_devloss_tmo attribute cannot be set to"
+ " %d, allowed range is [%d, %d]\n",
+ phba->brd_no, val, LPFC_MIN_DEVLOSS_TMO,
+ LPFC_MAX_DEVLOSS_TMO);
+ return -EINVAL;
+}
+
+lpfc_param_store(devloss_tmo)
+static CLASS_DEVICE_ATTR(lpfc_devloss_tmo, S_IRUGO | S_IWUSR,
+ lpfc_devloss_tmo_show, lpfc_devloss_tmo_store);
+
/*
# lpfc_log_verbose: Only turn this flag on if you are willing to risk being
# deluged with LOTS of information.
LPFC_ATTR_R(scan_down, 1, 0, 1,
"Start scanning for devices from highest ALPA to lowest");
-/*
-# lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear
-# until the timer expires. Value range is [0,255]. Default value is 30.
-# NOTE: this MUST be less then the SCSI Layer command timeout - 1.
-*/
-LPFC_ATTR_RW(nodev_tmo, 30, 0, 255,
- "Seconds driver will hold I/O waiting for a device to come back");
-
/*
# lpfc_topology: link topology for init link
# 0x0 = attempt loop mode then point-to-point
LPFC_ATTR_RW(poll_tmo, 10, 1, 255,
"Milliseconds driver will wait between polling FCP ring");
+
struct class_device_attribute *lpfc_host_attrs[] = {
&class_device_attr_info,
&class_device_attr_serialnum,
&class_device_attr_lpfc_lun_queue_depth,
&class_device_attr_lpfc_hba_queue_depth,
&class_device_attr_lpfc_nodev_tmo,
+ &class_device_attr_lpfc_devloss_tmo,
&class_device_attr_lpfc_fcp_class,
&class_device_attr_lpfc_use_adisc,
&class_device_attr_lpfc_ack0,
&class_device_attr_issue_reset,
&class_device_attr_lpfc_poll,
&class_device_attr_lpfc_poll_tmo,
+ &class_device_attr_lpfc_soft_wwpn,
+ &class_device_attr_lpfc_soft_wwpn_enable,
NULL,
};
fc_host_fabric_name(shost) = node_name;
}
+static void
+lpfc_get_host_symbolic_name (struct Scsi_Host *shost)
+{
+ struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata;
+
+ spin_lock_irq(shost->host_lock);
+ lpfc_get_hba_sym_node_name(phba, fc_host_symbolic_name(shost));
+ spin_unlock_irq(shost->host_lock);
+}
static struct fc_host_statistics *
lpfc_get_stats(struct Scsi_Host *shost)
fc_starget_port_name(starget) = port_name;
}
-static void
-lpfc_get_rport_loss_tmo(struct fc_rport *rport)
-{
- /*
- * Return the driver's global value for device loss timeout plus
- * five seconds to allow the driver's nodev timer to run.
- */
- rport->dev_loss_tmo = lpfc_nodev_tmo + 5;
-}
-
static void
lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
{
- /*
- * The driver doesn't have a per-target timeout setting. Set
- * this value globally. lpfc_nodev_tmo should be greater then 0.
- */
if (timeout)
- lpfc_nodev_tmo = timeout;
+ rport->dev_loss_tmo = timeout;
else
- lpfc_nodev_tmo = 1;
- rport->dev_loss_tmo = lpfc_nodev_tmo + 5;
+ rport->dev_loss_tmo = 1;
}
.show_host_port_name = 1,
.show_host_supported_classes = 1,
.show_host_supported_fc4s = 1,
- .show_host_symbolic_name = 1,
.show_host_supported_speeds = 1,
.show_host_maxframe_size = 1,
.get_host_fabric_name = lpfc_get_host_fabric_name,
.show_host_fabric_name = 1,
+ .get_host_symbolic_name = lpfc_get_host_symbolic_name,
+ .show_host_symbolic_name = 1,
+
/*
* The LPFC driver treats linkdown handling as target loss events
* so there are no sysfs handlers for link_down_tmo.
.show_rport_maxframe_size = 1,
.show_rport_supported_classes = 1,
- .get_rport_dev_loss_tmo = lpfc_get_rport_loss_tmo,
.set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
.show_rport_dev_loss_tmo = 1,
.show_starget_port_name = 1,
.issue_fc_host_lip = lpfc_issue_lip,
+ .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk,
+ .terminate_rport_io = lpfc_terminate_rport_io,
};
void
lpfc_ack0_init(phba, lpfc_ack0);
lpfc_topology_init(phba, lpfc_topology);
lpfc_scan_down_init(phba, lpfc_scan_down);
- lpfc_nodev_tmo_init(phba, lpfc_nodev_tmo);
lpfc_link_speed_init(phba, lpfc_link_speed);
lpfc_fdmi_on_init(phba, lpfc_fdmi_on);
lpfc_discovery_threads_init(phba, lpfc_discovery_threads);
lpfc_max_luns_init(phba, lpfc_max_luns);
lpfc_poll_tmo_init(phba, lpfc_poll_tmo);
-
+ lpfc_devloss_tmo_init(phba, lpfc_devloss_tmo);
+ lpfc_nodev_tmo_init(phba, lpfc_nodev_tmo);
phba->cfg_poll = lpfc_poll;
+ phba->cfg_soft_wwpn = 0L;
/*
* The total number of segments is the configuration value plus 2
git.openpandora.org / pandora-kernel.git / blobdiff