diff options
Diffstat (limited to 'drivers/net/sfc/net_driver.h')
| -rw-r--r-- | drivers/net/sfc/net_driver.h | 302 |
1 files changed, 157 insertions, 145 deletions
diff --git a/drivers/net/sfc/net_driver.h b/drivers/net/sfc/net_driver.h index 298566da638..34c381f009b 100644 --- a/drivers/net/sfc/net_driver.h +++ b/drivers/net/sfc/net_driver.h @@ -1,7 +1,7 @@ /**************************************************************************** * Driver for Solarflare Solarstorm network controllers and boards * Copyright 2005-2006 Fen Systems Ltd. - * Copyright 2005-2008 Solarflare Communications Inc. + * Copyright 2005-2009 Solarflare Communications Inc. * * 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 @@ -38,7 +38,7 @@ #ifndef EFX_DRIVER_NAME #define EFX_DRIVER_NAME "sfc" #endif -#define EFX_DRIVER_VERSION "2.3" +#define EFX_DRIVER_VERSION "3.0" #ifdef EFX_ENABLE_DEBUG #define EFX_BUG_ON_PARANOID(x) BUG_ON(x) @@ -113,6 +113,13 @@ struct efx_special_buffer { int entries; }; +enum efx_flush_state { + FLUSH_NONE, + FLUSH_PENDING, + FLUSH_FAILED, + FLUSH_DONE, +}; + /** * struct efx_tx_buffer - An Efx TX buffer * @skb: The associated socket buffer. @@ -189,7 +196,7 @@ struct efx_tx_queue { struct efx_nic *nic; struct efx_tx_buffer *buffer; struct efx_special_buffer txd; - bool flushed; + enum efx_flush_state flushed; /* Members used mainly on the completion path */ unsigned int read_count ____cacheline_aligned_in_smp; @@ -284,7 +291,7 @@ struct efx_rx_queue { struct page *buf_page; dma_addr_t buf_dma_addr; char *buf_data; - bool flushed; + enum efx_flush_state flushed; }; /** @@ -327,7 +334,7 @@ enum efx_rx_alloc_method { * @used_flags: Channel is used by net driver * @enabled: Channel enabled indicator * @irq: IRQ number (MSI and MSI-X only) - * @irq_moderation: IRQ moderation value (in us) + * @irq_moderation: IRQ moderation value (in hardware ticks) * @napi_dev: Net device used with NAPI * @napi_str: NAPI control structure * @reset_work: Scheduled reset work thread @@ -343,9 +350,9 @@ enum efx_rx_alloc_method { * @rx_alloc_push_pages: RX allocation method currently in use for pushing * descriptors * @n_rx_tobe_disc: Count of RX_TOBE_DISC errors - * @n_rx_ip_frag_err: Count of RX IP fragment errors * @n_rx_ip_hdr_chksum_err: Count of RX IP header checksum errors * @n_rx_tcp_udp_chksum_err: Count of RX TCP and UDP checksum errors + * @n_rx_mcast_mismatch: Count of unmatched multicast frames * @n_rx_frm_trunc: Count of RX_FRM_TRUNC errors * @n_rx_overlength: Count of RX_OVERLENGTH errors * @n_skbuff_leaks: Count of skbuffs leaked due to RX overrun @@ -373,9 +380,9 @@ struct efx_channel { int rx_alloc_push_pages; unsigned n_rx_tobe_disc; - unsigned n_rx_ip_frag_err; unsigned n_rx_ip_hdr_chksum_err; unsigned n_rx_tcp_udp_chksum_err; + unsigned n_rx_mcast_mismatch; unsigned n_rx_frm_trunc; unsigned n_rx_overlength; unsigned n_skbuff_leaks; @@ -388,53 +395,29 @@ struct efx_channel { }; -/** - * struct efx_blinker - S/W LED blinking context - * @state: Current state - on or off - * @resubmit: Timer resubmission flag - * @timer: Control timer for blinking - */ -struct efx_blinker { - bool state; - bool resubmit; - struct timer_list timer; +enum efx_led_mode { + EFX_LED_OFF = 0, + EFX_LED_ON = 1, + EFX_LED_DEFAULT = 2 }; +#define STRING_TABLE_LOOKUP(val, member) \ + ((val) < member ## _max) ? member ## _names[val] : "(invalid)" -/** - * struct efx_board - board information - * @type: Board model type - * @major: Major rev. ('A', 'B' ...) - * @minor: Minor rev. (0, 1, ...) - * @init: Initialisation function - * @init_leds: Sets up board LEDs. May be called repeatedly. - * @set_id_led: Turns the identification LED on or off - * @blink: Starts/stops blinking - * @monitor: Board-specific health check function - * @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; - int major; - int minor; - int (*init) (struct efx_nic *nic); - /* As the LEDs are typically attached to the PHY, LEDs - * have a separate init callback that happens later than - * board init. */ - void (*init_leds)(struct efx_nic *efx); - void (*set_id_led) (struct efx_nic *efx, bool state); - int (*monitor) (struct efx_nic *nic); - 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; -}; +extern const char *efx_loopback_mode_names[]; +extern const unsigned int efx_loopback_mode_max; +#define LOOPBACK_MODE(efx) \ + STRING_TABLE_LOOKUP((efx)->loopback_mode, efx_loopback_mode) + +extern const char *efx_interrupt_mode_names[]; +extern const unsigned int efx_interrupt_mode_max; +#define INT_MODE(efx) \ + STRING_TABLE_LOOKUP(efx->interrupt_mode, efx_interrupt_mode) -#define STRING_TABLE_LOOKUP(val, member) \ - member ## _names[val] +extern const char *efx_reset_type_names[]; +extern const unsigned int efx_reset_type_max; +#define RESET_TYPE(type) \ + STRING_TABLE_LOOKUP(type, efx_reset_type) enum efx_int_mode { /* Be careful if altering to correct macro below */ @@ -445,20 +428,7 @@ enum efx_int_mode { }; #define EFX_INT_MODE_USE_MSI(x) (((x)->interrupt_mode) <= EFX_INT_MODE_MSI) -enum phy_type { - PHY_TYPE_NONE = 0, - PHY_TYPE_TXC43128 = 1, - PHY_TYPE_88E1111 = 2, - PHY_TYPE_SFX7101 = 3, - PHY_TYPE_QT2022C2 = 4, - PHY_TYPE_PM8358 = 6, - PHY_TYPE_SFT9001A = 8, - PHY_TYPE_QT2025C = 9, - PHY_TYPE_SFT9001B = 10, - PHY_TYPE_MAX /* Insert any new items before this */ -}; - -#define EFX_IS10G(efx) ((efx)->link_speed == 10000) +#define EFX_IS10G(efx) ((efx)->link_state.speed == 10000) enum nic_state { STATE_INIT = 0, @@ -500,73 +470,69 @@ enum efx_fc_type { EFX_FC_AUTO = 4, }; -/* Supported MAC bit-mask */ -enum efx_mac_type { - EFX_GMAC = 1, - EFX_XMAC = 2, +/** + * struct efx_link_state - Current state of the link + * @up: Link is up + * @fd: Link is full-duplex + * @fc: Actual flow control flags + * @speed: Link speed (Mbps) + */ +struct efx_link_state { + bool up; + bool fd; + enum efx_fc_type fc; + unsigned int speed; }; -static inline enum efx_fc_type efx_fc_resolve(enum efx_fc_type wanted_fc, - unsigned int lpa) +static inline bool efx_link_state_equal(const struct efx_link_state *left, + const struct efx_link_state *right) { - BUILD_BUG_ON(EFX_FC_AUTO & (EFX_FC_RX | EFX_FC_TX)); - - if (!(wanted_fc & EFX_FC_AUTO)) - return wanted_fc; - - return mii_resolve_flowctrl_fdx(mii_advertise_flowctrl(wanted_fc), lpa); + return left->up == right->up && left->fd == right->fd && + left->fc == right->fc && left->speed == right->speed; } /** * struct efx_mac_operations - Efx MAC operations table * @reconfigure: Reconfigure MAC. Serialised by the mac_lock * @update_stats: Update statistics - * @irq: Hardware MAC event callback. Serialised by the mac_lock - * @poll: Poll for hardware state. Serialised by the mac_lock + * @check_fault: Check fault state. True if fault present. */ struct efx_mac_operations { - void (*reconfigure) (struct efx_nic *efx); + int (*reconfigure) (struct efx_nic *efx); void (*update_stats) (struct efx_nic *efx); - void (*irq) (struct efx_nic *efx); - void (*poll) (struct efx_nic *efx); + bool (*check_fault)(struct efx_nic *efx); }; /** * struct efx_phy_operations - Efx PHY operations table + * @probe: Probe PHY and initialise efx->mdio.mode_support, efx->mdio.mmds, + * efx->loopback_modes. * @init: Initialise PHY * @fini: Shut down PHY * @reconfigure: Reconfigure PHY (e.g. for new link parameters) - * @clear_interrupt: Clear down interrupt - * @blink: Blink LEDs - * @poll: Poll for hardware state. Serialised by the mac_lock. + * @poll: Update @link_state and report whether it changed. + * Serialised by the mac_lock. * @get_settings: Get ethtool settings. Serialised by the mac_lock. * @set_settings: Set ethtool settings. Serialised by the mac_lock. * @set_npage_adv: Set abilities advertised in (Extended) Next Page * (only needed where AN bit is set in mmds) - * @num_tests: Number of PHY-specific tests/results - * @test_names: Names of the tests/results + * @test_name: Get the name of a PHY-specific test/result * @run_tests: Run tests and record results as appropriate. * Flags are the ethtool tests flags. - * @mmds: MMD presence mask - * @loopbacks: Supported loopback modes mask */ struct efx_phy_operations { - enum efx_mac_type macs; + int (*probe) (struct efx_nic *efx); int (*init) (struct efx_nic *efx); void (*fini) (struct efx_nic *efx); - void (*reconfigure) (struct efx_nic *efx); - void (*clear_interrupt) (struct efx_nic *efx); - void (*poll) (struct efx_nic *efx); + int (*reconfigure) (struct efx_nic *efx); + bool (*poll) (struct efx_nic *efx); void (*get_settings) (struct efx_nic *efx, struct ethtool_cmd *ecmd); int (*set_settings) (struct efx_nic *efx, struct ethtool_cmd *ecmd); void (*set_npage_adv) (struct efx_nic *efx, u32); - u32 num_tests; - const char *const *test_names; + const char *(*test_name) (struct efx_nic *efx, unsigned int index); int (*run_tests) (struct efx_nic *efx, int *results, unsigned flags); - int mmds; - unsigned loopbacks; }; /** @@ -690,36 +656,38 @@ union efx_multicast_hash { * @interrupt_mode: Interrupt mode * @irq_rx_adaptive: Adaptive IRQ moderation enabled for RX event queues * @irq_rx_moderation: IRQ moderation time for RX event queues - * @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 + * @next_buffer_table: First available buffer table id * @n_rx_queues: Number of RX queues * @n_channels: Number of channels in use * @rx_buffer_len: RX buffer length * @rx_buffer_order: Order (log2) of number of pages for each RX buffer + * @int_error_count: Number of internal errors seen recently + * @int_error_expire: Time at which error count will be expired * @irq_status: Interrupt status buffer * @last_irq_cpu: Last CPU to handle interrupt. * 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. + * This field will be %NULL if no flash device is present (or for Siena). * @spi_eeprom: SPI EEPROM device - * This field will be %NULL if no EEPROM device is present. + * This field will be %NULL if no EEPROM device is present (or for Siena). * @spi_lock: SPI bus lock + * @mtd_list: List of MTDs attached to the NIC * @n_rx_nodesc_drop_cnt: RX no descriptor drop count * @nic_data: Hardware dependant state * @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(), efx_monitor(), - * efx_phy_work(), and efx_mac_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. + * Serialises efx_stop_all(), efx_start_all(), efx_monitor() and + * efx_mac_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 @@ -731,26 +699,23 @@ union efx_multicast_hash { * &struct net_device_stats. * @stats_buffer: DMA buffer for statistics * @stats_lock: Statistics update lock. Serialises statistics fetches - * @stats_disable_count: Nest count for disabling statistics fetches * @mac_op: MAC interface * @mac_address: Permanent MAC address * @phy_type: PHY type - * @phy_lock: PHY access lock + * @mdio_lock: MDIO lock * @phy_op: PHY interface * @phy_data: PHY private data (including PHY-specific stats) * @mdio: PHY MDIO interface + * @mdio_bus: PHY MDIO bus ID (only used by Siena) * @phy_mode: PHY operating mode. Serialised by @mac_lock. - * @mac_up: MAC link state - * @link_up: Link status - * @link_fd: Link is full duplex - * @link_fc: Actualy flow control flags - * @link_speed: Link speed (Mbps) + * @xmac_poll_required: XMAC link state needs polling + * @link_advertising: Autonegotiation advertising flags + * @link_state: Current state of the link * @n_link_state_changes: Number of times the link has changed state * @promiscuous: Promiscuous flag. Protected by netif_tx_lock. * @multicast_hash: Multicast hash table * @wanted_fc: Wanted flow control flags - * @phy_work: work item for dealing with PHY events - * @mac_work: work item for dealing with MAC events + * @mac_work: Work item for changing MAC promiscuity and multicast hash * @loopback_mode: Loopback status * @loopback_modes: Supported loopback mode bitmask * @loopback_selftest: Offline self-test private state @@ -774,9 +739,6 @@ struct efx_nic { bool irq_rx_adaptive; unsigned int irq_rx_moderation; - struct i2c_adapter i2c_adap; - struct efx_board board_info; - enum nic_state state; enum reset_type reset_pending; @@ -784,21 +746,29 @@ struct efx_nic { struct efx_rx_queue rx_queue[EFX_MAX_RX_QUEUES]; struct efx_channel channel[EFX_MAX_CHANNELS]; + unsigned next_buffer_table; int n_rx_queues; int n_channels; unsigned int rx_buffer_len; unsigned int rx_buffer_order; + unsigned int_error_count; + unsigned long int_error_expire; + struct efx_buffer irq_status; volatile signed int last_irq_cpu; + unsigned long irq_zero_count; struct efx_spi_device *spi_flash; struct efx_spi_device *spi_eeprom; struct mutex spi_lock; +#ifdef CONFIG_SFC_MTD + struct list_head mtd_list; +#endif unsigned n_rx_nodesc_drop_cnt; - struct falcon_nic_data *nic_data; + void *nic_data; struct mutex mac_lock; struct work_struct mac_work; @@ -815,24 +785,21 @@ struct efx_nic { struct efx_mac_stats mac_stats; struct efx_buffer stats_buffer; spinlock_t stats_lock; - unsigned int stats_disable_count; struct efx_mac_operations *mac_op; unsigned char mac_address[ETH_ALEN]; - enum phy_type phy_type; - spinlock_t phy_lock; - struct work_struct phy_work; + unsigned int phy_type; + struct mutex mdio_lock; struct efx_phy_operations *phy_op; void *phy_data; struct mdio_if_info mdio; + unsigned int mdio_bus; enum efx_phy_mode phy_mode; - bool mac_up; - bool link_up; - bool link_fd; - enum efx_fc_type link_fc; - unsigned int link_speed; + bool xmac_poll_required; + u32 link_advertising; + struct efx_link_state link_state; unsigned int n_link_state_changes; bool promiscuous; @@ -841,7 +808,7 @@ struct efx_nic { atomic_t rx_reset; enum efx_loopback_mode loopback_mode; - unsigned int loopback_modes; + u64 loopback_modes; void *loopback_selftest; }; @@ -860,50 +827,95 @@ static inline const char *efx_dev_name(struct efx_nic *efx) return efx_dev_registered(efx) ? efx->name : ""; } +static inline unsigned int efx_port_num(struct efx_nic *efx) +{ + return PCI_FUNC(efx->pci_dev->devfn); +} + /** * struct efx_nic_type - Efx device type definition - * @mem_bar: Memory BAR number + * @probe: Probe the controller + * @remove: Free resources allocated by probe() + * @init: Initialise the controller + * @fini: Shut down the controller + * @monitor: Periodic function for polling link state and hardware monitor + * @reset: Reset the controller hardware and possibly the PHY. This will + * be called while the controller is uninitialised. + * @probe_port: Probe the MAC and PHY + * @remove_port: Free resources allocated by probe_port() + * @prepare_flush: Prepare the hardware for flushing the DMA queues + * @update_stats: Update statistics not provided by event handling + * @start_stats: Start the regular fetching of statistics + * @stop_stats: Stop the regular fetching of statistics + * @set_id_led: Set state of identifying LED or revert to automatic function + * @push_irq_moderation: Apply interrupt moderation value + * @push_multicast_hash: Apply multicast hash table + * @reconfigure_port: Push loopback/power/txdis changes to the MAC and PHY + * @get_wol: Get WoL configuration from driver state + * @set_wol: Push WoL configuration to the NIC + * @resume_wol: Synchronise WoL state between driver and MC (e.g. after resume) + * @test_registers: Test read/write functionality of control registers + * @test_nvram: Test validity of NVRAM contents + * @default_mac_ops: efx_mac_operations to set at startup + * @revision: Hardware architecture revision * @mem_map_size: Memory BAR mapped size * @txd_ptr_tbl_base: TX descriptor ring base address * @rxd_ptr_tbl_base: RX descriptor ring base address * @buf_tbl_base: Buffer table base address * @evq_ptr_tbl_base: Event queue pointer table base address * @evq_rptr_tbl_base: Event queue read-pointer table base address - * @txd_ring_mask: TX descriptor ring size - 1 (must be a power of two - 1) - * @rxd_ring_mask: RX descriptor ring size - 1 (must be a power of two - 1) - * @evq_size: Event queue size (must be a power of two) * @max_dma_mask: Maximum possible DMA mask - * @tx_dma_mask: TX DMA mask - * @bug5391_mask: Address mask for bug 5391 workaround - * @rx_xoff_thresh: RX FIFO XOFF watermark (bytes) - * @rx_xon_thresh: RX FIFO XON watermark (bytes) * @rx_buffer_padding: Padding added to each RX buffer * @max_interrupt_mode: Highest capability interrupt mode supported * from &enum efx_init_mode. * @phys_addr_channels: Number of channels with physically addressed * descriptors + * @tx_dc_base: Base address in SRAM of TX queue descriptor caches + * @rx_dc_base: Base address in SRAM of RX queue descriptor caches + * @offload_features: net_device feature flags for protocol offload + * features implemented in hardware + * @reset_world_flags: Flags for additional components covered by + * reset method RESET_TYPE_WORLD */ struct efx_nic_type { - unsigned int mem_bar; + int (*probe)(struct efx_nic *efx); + void (*remove)(struct efx_nic *efx); + int (*init)(struct efx_nic *efx); + void (*fini)(struct efx_nic *efx); + void (*monitor)(struct efx_nic *efx); + int (*reset)(struct efx_nic *efx, enum reset_type method); + int (*probe_port)(struct efx_nic *efx); + void (*remove_port)(struct efx_nic *efx); + void (*prepare_flush)(struct efx_nic *efx); + void (*update_stats)(struct efx_nic *efx); + void (*start_stats)(struct efx_nic *efx); + void (*stop_stats)(struct efx_nic *efx); + void (*set_id_led)(struct efx_nic *efx, enum efx_led_mode mode); + void (*push_irq_moderation)(struct efx_channel *channel); + void (*push_multicast_hash)(struct efx_nic *efx); + int (*reconfigure_port)(struct efx_nic *efx); + void (*get_wol)(struct efx_nic *efx, struct ethtool_wolinfo *wol); + int (*set_wol)(struct efx_nic *efx, u32 type); + void (*resume_wol)(struct efx_nic *efx); + int (*test_registers)(struct efx_nic *efx); + int (*test_nvram)(struct efx_nic *efx); + struct efx_mac_operations *default_mac_ops; + + int revision; unsigned int mem_map_size; unsigned int txd_ptr_tbl_base; unsigned int rxd_ptr_tbl_base; unsigned int buf_tbl_base; unsigned int evq_ptr_tbl_base; unsigned int evq_rptr_tbl_base; - - unsigned int txd_ring_mask; - unsigned int rxd_ring_mask; - unsigned int evq_size; u64 max_dma_mask; - unsigned int tx_dma_mask; - unsigned bug5391_mask; - - int rx_xoff_thresh; - int rx_xon_thresh; unsigned int rx_buffer_padding; unsigned int max_interrupt_mode; unsigned int phys_addr_channels; + unsigned int tx_dc_base; + unsigned int rx_dc_base; + unsigned long offload_features; + u32 reset_world_flags; }; /************************************************************************** |