#include <linux/highmem.h>
#include <linux/workqueue.h>
#include <linux/inet_lro.h>
+#include <linux/i2c.h>
#include "enum.h"
#include "bitfield.h"
-#include "i2c-direct.h"
#define EFX_MAX_LRO_DESCRIPTORS 8
#define EFX_MAX_LRO_AGGR MAX_SKB_FRAGS
**************************************************************************/
#define EFX_MAX_CHANNELS 32
-#define EFX_MAX_TX_QUEUES 1
#define EFX_MAX_RX_QUEUES EFX_MAX_CHANNELS
+#define EFX_TX_QUEUE_OFFLOAD_CSUM 0
+#define EFX_TX_QUEUE_NO_CSUM 1
+#define EFX_TX_QUEUE_COUNT 2
+
/**
* struct efx_special_buffer - An Efx special buffer
* @addr: CPU base address of the buffer
* This field is zero when the queue slot is empty.
* @continuation: True if this fragment is not the end of a packet.
* @unmap_single: True if pci_unmap_single should be used.
- * @unmap_addr: DMA address to unmap
* @unmap_len: Length of this fragment to unmap
*/
struct efx_tx_buffer {
struct efx_tso_header *tsoh;
dma_addr_t dma_addr;
unsigned short len;
- unsigned char continuation;
- unsigned char unmap_single;
- dma_addr_t unmap_addr;
+ bool continuation;
+ bool unmap_single;
unsigned short unmap_len;
};
*
* @efx: The associated Efx NIC
* @queue: DMA queue number
- * @used: Queue is used by net driver
* @channel: The associated channel
* @buffer: The software buffer ring
* @txd: The hardware descriptor ring
+ * @flushed: Used when handling queue flushing
* @read_count: Current read pointer.
* This is the number of buffers that have been removed from both rings.
- * @stopped: Stopped flag.
+ * @stopped: Stopped count.
* Set if this TX queue is currently stopping its port.
* @insert_count: Current insert pointer
* This is the number of buffers that have been added to the
/* Members which don't change on the fast path */
struct efx_nic *efx ____cacheline_aligned_in_smp;
int queue;
- int used;
struct efx_channel *channel;
struct efx_nic *nic;
struct efx_tx_buffer *buffer;
struct efx_special_buffer txd;
+ bool flushed;
/* Members used mainly on the completion path */
unsigned int read_count ____cacheline_aligned_in_smp;
* struct efx_rx_queue - An Efx RX queue
* @efx: The associated Efx NIC
* @queue: DMA queue number
- * @used: Queue is used by net driver
* @channel: The associated channel
* @buffer: The software buffer ring
* @rxd: The hardware descriptor ring
* the remaining space in the allocation.
* @buf_dma_addr: Page's DMA address.
* @buf_data: Page's host address.
+ * @flushed: Use when handling queue flushing
*/
struct efx_rx_queue {
struct efx_nic *efx;
int queue;
- int used;
struct efx_channel *channel;
struct efx_rx_buffer *buffer;
struct efx_special_buffer rxd;
struct page *buf_page;
dma_addr_t buf_dma_addr;
char *buf_data;
+ bool flushed;
};
/**
* queue.
*
* @efx: Associated Efx NIC
- * @evqnum: Event queue number
* @channel: Channel instance number
* @used_flags: Channel is used by net driver
* @enabled: Channel enabled indicator
* @irq: IRQ number (MSI and MSI-X only)
- * @has_interrupt: Channel has an interrupt
* @irq_moderation: IRQ moderation value (in us)
* @napi_dev: Net device used with NAPI
* @napi_str: NAPI control structure
*/
struct efx_channel {
struct efx_nic *efx;
- int evqnum;
int channel;
int used_flags;
- int enabled;
+ bool enabled;
int irq;
- unsigned int has_interrupt;
unsigned int irq_moderation;
struct net_device *napi_dev;
struct napi_struct napi_str;
- struct work_struct reset_work;
- int work_pending;
+ bool work_pending;
struct efx_special_buffer eventq;
unsigned int eventq_read_ptr;
unsigned int last_eventq_read_ptr;
* access with prefetches.
*/
struct efx_rx_buffer *rx_pkt;
- int rx_pkt_csummed;
+ bool rx_pkt_csummed;
};
*/
struct efx_blinker {
int led_num;
- int state;
- int resubmit;
+ bool state;
+ bool resubmit;
struct timer_list timer;
};
* @init_leds: Sets up board LEDs
* @set_fault_led: Turns the fault LED on or off
* @blink: Starts/stops blinking
+ * @fini: Cleanup function
* @blinker: used to blink LEDs in software
+ * @hwmon_client: I2C client for hardware monitor
+ * @ioexp_client: I2C client for power/port control
*/
struct efx_board {
int type;
* have a separate init callback that happens later than
* board init. */
int (*init_leds)(struct efx_nic *efx);
- void (*set_fault_led) (struct efx_nic *efx, int state);
- void (*blink) (struct efx_nic *efx, int start);
+ void (*set_fault_led) (struct efx_nic *efx, bool state);
+ void (*blink) (struct efx_nic *efx, bool start);
+ void (*fini) (struct efx_nic *nic);
struct efx_blinker blinker;
+ struct i2c_client *hwmon_client, *ioexp_client;
};
#define STRING_TABLE_LOOKUP(val, member) \
STATE_INIT = 0,
STATE_RUNNING = 1,
STATE_FINI = 2,
- STATE_RESETTING = 3, /* rtnl_lock always held */
- STATE_DISABLED = 4,
+ STATE_DISABLED = 3,
STATE_MAX,
};
* @clear_interrupt: Clear down interrupt
* @blink: Blink LEDs
* @check_hw: Check hardware
- * @reset_xaui: Reset XAUI side of PHY for (software sequenced reset)
* @mmds: MMD presence mask
* @loopbacks: Supported loopback modes mask
*/
void (*reconfigure) (struct efx_nic *efx);
void (*clear_interrupt) (struct efx_nic *efx);
int (*check_hw) (struct efx_nic *efx);
- void (*reset_xaui) (struct efx_nic *efx);
+ int (*test) (struct efx_nic *efx);
int mmds;
unsigned loopbacks;
};
+/**
+ * @enum efx_phy_mode - PHY operating mode flags
+ * @PHY_MODE_NORMAL: on and should pass traffic
+ * @PHY_MODE_TX_DISABLED: on with TX disabled
+ * @PHY_MODE_SPECIAL: on but will not pass traffic
+ */
+enum efx_phy_mode {
+ PHY_MODE_NORMAL = 0,
+ PHY_MODE_TX_DISABLED = 1,
+ PHY_MODE_SPECIAL = 8,
+};
+
+static inline bool efx_phy_mode_disabled(enum efx_phy_mode mode)
+{
+ return !!(mode & ~PHY_MODE_TX_DISABLED);
+}
+
/*
* Efx extended statistics
*
* @pci_dev: The PCI device
* @type: Controller type attributes
* @legacy_irq: IRQ number
- * @workqueue: Workqueue for resets, port reconfigures and the HW monitor
+ * @workqueue: Workqueue for port reconfigures and the HW monitor.
+ * Work items do not hold and must not acquire RTNL.
+ * @reset_workqueue: Workqueue for resets. Work item will acquire RTNL.
* @reset_work: Scheduled reset workitem
* @monitor_work: Hardware monitor workitem
* @membase_phys: Memory BAR value as physical address
* @membase: Memory BAR value
* @biu_lock: BIU (bus interface unit) lock
* @interrupt_mode: Interrupt mode
- * @i2c: I2C interface
+ * @i2c_adap: I2C adapter
* @board_info: Board-level information
* @state: Device state flag. Serialised by the rtnl_lock.
* @reset_pending: Pending reset method (normally RESET_TYPE_NONE)
* @tx_queue: TX DMA queues
* @rx_queue: RX DMA queues
* @channel: Channels
- * @rss_queues: Number of RSS queues
+ * @n_rx_queues: Number of RX queues
* @rx_buffer_len: RX buffer length
* @rx_buffer_order: Order (log2) of number of pages for each RX buffer
* @irq_status: Interrupt status buffer
* This register is written with the SMP processor ID whenever an
* interrupt is handled. It is used by falcon_test_interrupt()
* to verify that an interrupt has occurred.
+ * @spi_flash: SPI flash device
+ * This field will be %NULL if no flash device is present.
+ * @spi_eeprom: SPI EEPROM device
+ * This field will be %NULL if no EEPROM device is present.
* @n_rx_nodesc_drop_cnt: RX no descriptor drop count
* @nic_data: Hardware dependant state
- * @mac_lock: MAC access lock. Protects @port_enabled, efx_monitor() and
- * efx_reconfigure_port()
+ * @mac_lock: MAC access lock. Protects @port_enabled, @phy_mode,
+ * @port_inhibited, efx_monitor() and efx_reconfigure_port()
* @port_enabled: Port enabled indicator.
* Serialises efx_stop_all(), efx_start_all() and efx_monitor() and
* efx_reconfigure_work with kernel interfaces. Safe to read under any
* one of the rtnl_lock, mac_lock, or netif_tx_lock, but all three must
* be held to modify it.
+ * @port_inhibited: If set, the netif_carrier is always off. Hold the mac_lock
* @port_initialized: Port initialized?
* @net_dev: Operating system network device. Consider holding the rtnl lock
* @rx_checksum_enabled: RX checksumming enabled
* can provide. Generic code converts these into a standard
* &struct net_device_stats.
* @stats_buffer: DMA buffer for statistics
- * @stats_lock: Statistics update lock
+ * @stats_lock: Statistics update lock. Serialises statistics fetches
+ * @stats_enabled: Temporarily disable statistics fetches.
+ * Serialised by @stats_lock
* @mac_address: Permanent MAC address
* @phy_type: PHY type
* @phy_lock: PHY access lock
* @phy_op: PHY interface
* @phy_data: PHY private data (including PHY-specific stats)
* @mii: PHY interface
- * @tx_disabled: PHY transmitter turned off
+ * @phy_mode: PHY operating mode. Serialised by @mac_lock.
* @link_up: Link status
* @link_options: Link options (MII/GMII format)
* @n_link_state_changes: Number of times the link has changed state
const struct efx_nic_type *type;
int legacy_irq;
struct workqueue_struct *workqueue;
+ struct workqueue_struct *reset_workqueue;
struct work_struct reset_work;
struct delayed_work monitor_work;
resource_size_t membase_phys;
spinlock_t biu_lock;
enum efx_int_mode interrupt_mode;
- struct efx_i2c_interface i2c;
+ struct i2c_adapter i2c_adap;
struct efx_board board_info;
enum nic_state state;
enum reset_type reset_pending;
- struct efx_tx_queue tx_queue[EFX_MAX_TX_QUEUES];
+ struct efx_tx_queue tx_queue[EFX_TX_QUEUE_COUNT];
struct efx_rx_queue rx_queue[EFX_MAX_RX_QUEUES];
struct efx_channel channel[EFX_MAX_CHANNELS];
- int rss_queues;
+ int n_rx_queues;
unsigned int rx_buffer_len;
unsigned int rx_buffer_order;
struct efx_buffer irq_status;
volatile signed int last_irq_cpu;
+ struct efx_spi_device *spi_flash;
+ struct efx_spi_device *spi_eeprom;
+
unsigned n_rx_nodesc_drop_cnt;
struct falcon_nic_data *nic_data;
struct mutex mac_lock;
- int port_enabled;
+ bool port_enabled;
+ bool port_inhibited;
- int port_initialized;
+ bool port_initialized;
struct net_device *net_dev;
- int rx_checksum_enabled;
+ bool rx_checksum_enabled;
atomic_t netif_stop_count;
spinlock_t netif_stop_lock;
struct efx_mac_stats mac_stats;
struct efx_buffer stats_buffer;
spinlock_t stats_lock;
+ bool stats_enabled;
unsigned char mac_address[ETH_ALEN];
struct efx_phy_operations *phy_op;
void *phy_data;
struct mii_if_info mii;
- unsigned tx_disabled;
+ enum efx_phy_mode phy_mode;
- int link_up;
+ bool link_up;
unsigned int link_options;
unsigned int n_link_state_changes;
- int promiscuous;
+ bool promiscuous;
union efx_multicast_hash multicast_hash;
enum efx_fc_type flow_control;
struct work_struct reconfigure_work;
continue; \
else
-/* Iterate over all used channels with interrupts */
-#define efx_for_each_channel_with_interrupt(_channel, _efx) \
- for (_channel = &_efx->channel[0]; \
- _channel < &_efx->channel[EFX_MAX_CHANNELS]; \
- _channel++) \
- if (!(_channel->used_flags && _channel->has_interrupt)) \
- continue; \
- else
-
/* Iterate over all used TX queues */
#define efx_for_each_tx_queue(_tx_queue, _efx) \
for (_tx_queue = &_efx->tx_queue[0]; \
- _tx_queue < &_efx->tx_queue[EFX_MAX_TX_QUEUES]; \
- _tx_queue++) \
- if (!_tx_queue->used) \
- continue; \
- else
+ _tx_queue < &_efx->tx_queue[EFX_TX_QUEUE_COUNT]; \
+ _tx_queue++)
/* Iterate over all TX queues belonging to a channel */
#define efx_for_each_channel_tx_queue(_tx_queue, _channel) \
for (_tx_queue = &_channel->efx->tx_queue[0]; \
- _tx_queue < &_channel->efx->tx_queue[EFX_MAX_TX_QUEUES]; \
+ _tx_queue < &_channel->efx->tx_queue[EFX_TX_QUEUE_COUNT]; \
_tx_queue++) \
- if ((!_tx_queue->used) || \
- (_tx_queue->channel != _channel)) \
+ if (_tx_queue->channel != _channel) \
continue; \
else
/* Iterate over all used RX queues */
#define efx_for_each_rx_queue(_rx_queue, _efx) \
for (_rx_queue = &_efx->rx_queue[0]; \
- _rx_queue < &_efx->rx_queue[EFX_MAX_RX_QUEUES]; \
- _rx_queue++) \
- if (!_rx_queue->used) \
- continue; \
- else
+ _rx_queue < &_efx->rx_queue[_efx->n_rx_queues]; \
+ _rx_queue++)
/* Iterate over all RX queues belonging to a channel */
#define efx_for_each_channel_rx_queue(_rx_queue, _channel) \
- for (_rx_queue = &_channel->efx->rx_queue[0]; \
- _rx_queue < &_channel->efx->rx_queue[EFX_MAX_RX_QUEUES]; \
- _rx_queue++) \
- if ((!_rx_queue->used) || \
- (_rx_queue->channel != _channel)) \
+ for (_rx_queue = &_channel->efx->rx_queue[_channel->channel]; \
+ _rx_queue; \
+ _rx_queue = NULL) \
+ if (_rx_queue->channel != _channel) \
continue; \
else
}
/* Set bit in a little-endian bitfield */
-static inline void set_bit_le(int nr, unsigned char *addr)
+static inline void set_bit_le(unsigned nr, unsigned char *addr)
{
addr[nr / 8] |= (1 << (nr % 8));
}
/* Clear bit in a little-endian bitfield */
-static inline void clear_bit_le(int nr, unsigned char *addr)
+static inline void clear_bit_le(unsigned nr, unsigned char *addr)
{
addr[nr / 8] &= ~(1 << (nr % 8));
}
git.openpandora.org / pandora-kernel.git / blobdiff