/**************************************************************************** * Driver for Solarflare Solarstorm network controllers and boards * Copyright 2005-2006 Fen Systems Ltd. * Copyright 2006-2008 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 * by the Free Software Foundation, incorporated herein by reference. */ #ifndef EFX_FALCON_H #define EFX_FALCON_H #include #include "net_driver.h" #include "efx.h" /* * Falcon hardware control */ enum { EFX_REV_FALCON_A0 = 0, EFX_REV_FALCON_A1 = 1, EFX_REV_FALCON_B0 = 2, }; static inline int efx_nic_rev(struct efx_nic *efx) { return efx->type->revision; } /** * struct falcon_board_type - board operations and type information * @id: Board type id, as found in NVRAM * @ref_model: Model number of Solarflare reference design * @gen_type: Generic board type description * @init: Allocate resources and initialise peripheral hardware * @init_phy: Do board-specific PHY initialisation * @fini: Shut down hardware and free resources * @set_id_led: Set state of identifying LED or revert to automatic function * @monitor: Board-specific health check function */ struct falcon_board_type { u8 id; const char *ref_model; const char *gen_type; int (*init) (struct efx_nic *nic); void (*init_phy) (struct efx_nic *efx); void (*fini) (struct efx_nic *nic); void (*set_id_led) (struct efx_nic *efx, enum efx_led_mode mode); int (*monitor) (struct efx_nic *nic); }; /** * struct falcon_board - board information * @type: Type of board * @major: Major rev. ('A', 'B' ...) * @minor: Minor rev. (0, 1, ...) * @i2c_adap: I2C adapter for on-board peripherals * @i2c_data: Data for bit-banging algorithm * @hwmon_client: I2C client for hardware monitor * @ioexp_client: I2C client for power/port control */ struct falcon_board { const struct falcon_board_type *type; int major; int minor; struct i2c_adapter i2c_adap; struct i2c_algo_bit_data i2c_data; struct i2c_client *hwmon_client, *ioexp_client; }; /** * struct falcon_nic_data - Falcon NIC state * @pci_dev2: Secondary function of Falcon A * @board: Board state and functions * @stats_disable_count: Nest count for disabling statistics fetches * @stats_pending: Is there a pending DMA of MAC statistics. * @stats_timer: A timer for regularly fetching MAC statistics. * @stats_dma_done: Pointer to the flag which indicates DMA completion. */ struct falcon_nic_data { struct pci_dev *pci_dev2; struct falcon_board board; unsigned int stats_disable_count; bool stats_pending; struct timer_list stats_timer; u32 *stats_dma_done; }; static inline struct falcon_board *falcon_board(struct efx_nic *efx) { struct falcon_nic_data *data = efx->nic_data; return &data->board; } extern struct efx_nic_type falcon_a1_nic_type; extern struct efx_nic_type falcon_b0_nic_type; /************************************************************************** * * Externs * ************************************************************************** */ extern void falcon_probe_board(struct efx_nic *efx, u16 revision_info); /* TX data path */ extern int falcon_probe_tx(struct efx_tx_queue *tx_queue); extern void falcon_init_tx(struct efx_tx_queue *tx_queue); extern void falcon_fini_tx(struct efx_tx_queue *tx_queue); extern void falcon_remove_tx(struct efx_tx_queue *tx_queue); extern void falcon_push_buffers(struct efx_tx_queue *tx_queue); /* RX data path */ extern int falcon_probe_rx(struct efx_rx_queue *rx_queue); extern void falcon_init_rx(struct efx_rx_queue *rx_queue); extern void falcon_fini_rx(struct efx_rx_queue *rx_queue); extern void falcon_remove_rx(struct efx_rx_queue *rx_queue); extern void falcon_notify_rx_desc(struct efx_rx_queue *rx_queue); /* Event data path */ extern int falcon_probe_eventq(struct efx_channel *channel); extern void falcon_init_eventq(struct efx_channel *channel); extern void falcon_fini_eventq(struct efx_channel *channel); extern void falcon_remove_eventq(struct efx_channel *channel); extern int falcon_process_eventq(struct efx_channel *channel, int rx_quota); extern void falcon_eventq_read_ack(struct efx_channel *channel); /* MAC/PHY */ extern void falcon_drain_tx_fifo(struct efx_nic *efx); extern void falcon_reconfigure_mac_wrapper(struct efx_nic *efx); /* Interrupts and test events */ extern int falcon_init_interrupt(struct efx_nic *efx); extern void falcon_enable_interrupts(struct efx_nic *efx); extern void falcon_generate_test_event(struct efx_channel *channel, unsigned int magic); extern void falcon_generate_interrupt(struct efx_nic *efx); extern void falcon_disable_interrupts(struct efx_nic *efx); extern void falcon_fini_interrupt(struct efx_nic *efx); #define FALCON_IRQ_MOD_RESOLUTION 5 /* Global Resources */ extern int falcon_flush_queues(struct efx_nic *efx); extern void falcon_start_nic_stats(struct efx_nic *efx); extern void falcon_stop_nic_stats(struct efx_nic *efx); extern int falcon_reset_xaui(struct efx_nic *efx); /* Tests */ struct falcon_nvconfig; extern int falcon_read_nvram(struct efx_nic *efx, struct falcon_nvconfig *nvconfig); extern int falcon_test_registers(struct efx_nic *efx); /************************************************************************** * * Falcon MAC stats * ************************************************************************** */ #define FALCON_STAT_OFFSET(falcon_stat) EFX_VAL(falcon_stat, offset) #define FALCON_STAT_WIDTH(falcon_stat) EFX_VAL(falcon_stat, WIDTH) /* Retrieve statistic from statistics block */ #define FALCON_STAT(efx, falcon_stat, efx_stat) do { \ if (FALCON_STAT_WIDTH(falcon_stat) == 16) \ (efx)->mac_stats.efx_stat += le16_to_cpu( \ *((__force __le16 *) \ (efx->stats_buffer.addr + \ FALCON_STAT_OFFSET(falcon_stat)))); \ else if (FALCON_STAT_WIDTH(falcon_stat) == 32) \ (efx)->mac_stats.efx_stat += le32_to_cpu( \ *((__force __le32 *) \ (efx->stats_buffer.addr + \ FALCON_STAT_OFFSET(falcon_stat)))); \ else \ (efx)->mac_stats.efx_stat += le64_to_cpu( \ *((__force __le64 *) \ (efx->stats_buffer.addr + \ FALCON_STAT_OFFSET(falcon_stat)))); \ } while (0) #define FALCON_MAC_STATS_SIZE 0x100 #define MAC_DATA_LBN 0 #define MAC_DATA_WIDTH 32 extern void falcon_generate_event(struct efx_channel *channel, efx_qword_t *event); extern void falcon_poll_xmac(struct efx_nic *efx); #endif /* EFX_FALCON_H */