| /**************************************************************************** |
| * Driver for Solarflare Solarstorm network controllers and boards |
| * Copyright 2005-2006 Fen Systems Ltd. |
| * Copyright 2006-2011 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_NIC_H |
| #define EFX_NIC_H |
| |
| #include <linux/i2c-algo-bit.h> |
| #include "net_driver.h" |
| #include "efx.h" |
| #include "mcdi.h" |
| #include "spi.h" |
| |
| /* |
| * Falcon hardware control |
| */ |
| |
| enum { |
| EFX_REV_FALCON_A0 = 0, |
| EFX_REV_FALCON_A1 = 1, |
| EFX_REV_FALCON_B0 = 2, |
| EFX_REV_SIENA_A0 = 3, |
| }; |
| |
| static inline int efx_nic_rev(struct efx_nic *efx) |
| { |
| return efx->type->revision; |
| } |
| |
| extern u32 efx_nic_fpga_ver(struct efx_nic *efx); |
| |
| static inline bool efx_nic_has_mc(struct efx_nic *efx) |
| { |
| return efx_nic_rev(efx) >= EFX_REV_SIENA_A0; |
| } |
| /* NIC has two interlinked PCI functions for the same port. */ |
| static inline bool efx_nic_is_dual_func(struct efx_nic *efx) |
| { |
| return efx_nic_rev(efx) < EFX_REV_FALCON_B0; |
| } |
| |
| enum { |
| 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, |
| }; |
| |
| #define FALCON_XMAC_LOOPBACKS \ |
| ((1 << LOOPBACK_XGMII) | \ |
| (1 << LOOPBACK_XGXS) | \ |
| (1 << LOOPBACK_XAUI)) |
| |
| #define FALCON_GMAC_LOOPBACKS \ |
| (1 << LOOPBACK_GMAC) |
| |
| /** |
| * 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. |
| * @spi_flash: SPI flash device |
| * @spi_eeprom: SPI EEPROM device |
| * @spi_lock: SPI bus lock |
| * @mdio_lock: MDIO bus lock |
| * @xmac_poll_required: XMAC link state needs polling |
| */ |
| 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; |
| struct efx_spi_device spi_flash; |
| struct efx_spi_device spi_eeprom; |
| struct mutex spi_lock; |
| struct mutex mdio_lock; |
| bool xmac_poll_required; |
| }; |
| |
| static inline struct falcon_board *falcon_board(struct efx_nic *efx) |
| { |
| struct falcon_nic_data *data = efx->nic_data; |
| return &data->board; |
| } |
| |
| /** |
| * struct siena_nic_data - Siena NIC state |
| * @mcdi: Management-Controller-to-Driver Interface |
| * @mcdi_smem: MCDI shared memory mapping. The mapping is always uncacheable. |
| * @wol_filter_id: Wake-on-LAN packet filter id |
| */ |
| struct siena_nic_data { |
| struct efx_mcdi_iface mcdi; |
| void __iomem *mcdi_smem; |
| int wol_filter_id; |
| }; |
| |
| extern const struct efx_nic_type falcon_a1_nic_type; |
| extern const struct efx_nic_type falcon_b0_nic_type; |
| extern const struct efx_nic_type siena_a0_nic_type; |
| |
| /************************************************************************** |
| * |
| * Externs |
| * |
| ************************************************************************** |
| */ |
| |
| extern int falcon_probe_board(struct efx_nic *efx, u16 revision_info); |
| |
| /* TX data path */ |
| extern int efx_nic_probe_tx(struct efx_tx_queue *tx_queue); |
| extern void efx_nic_init_tx(struct efx_tx_queue *tx_queue); |
| extern void efx_nic_fini_tx(struct efx_tx_queue *tx_queue); |
| extern void efx_nic_remove_tx(struct efx_tx_queue *tx_queue); |
| extern void efx_nic_push_buffers(struct efx_tx_queue *tx_queue); |
| |
| /* RX data path */ |
| extern int efx_nic_probe_rx(struct efx_rx_queue *rx_queue); |
| extern void efx_nic_init_rx(struct efx_rx_queue *rx_queue); |
| extern void efx_nic_fini_rx(struct efx_rx_queue *rx_queue); |
| extern void efx_nic_remove_rx(struct efx_rx_queue *rx_queue); |
| extern void efx_nic_notify_rx_desc(struct efx_rx_queue *rx_queue); |
| |
| /* Event data path */ |
| extern int efx_nic_probe_eventq(struct efx_channel *channel); |
| extern void efx_nic_init_eventq(struct efx_channel *channel); |
| extern void efx_nic_fini_eventq(struct efx_channel *channel); |
| extern void efx_nic_remove_eventq(struct efx_channel *channel); |
| extern int efx_nic_process_eventq(struct efx_channel *channel, int rx_quota); |
| extern void efx_nic_eventq_read_ack(struct efx_channel *channel); |
| extern bool efx_nic_event_present(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 efx_nic_init_interrupt(struct efx_nic *efx); |
| extern void efx_nic_enable_interrupts(struct efx_nic *efx); |
| extern void efx_nic_generate_test_event(struct efx_channel *channel); |
| extern void efx_nic_generate_fill_event(struct efx_channel *channel); |
| extern void efx_nic_generate_interrupt(struct efx_nic *efx); |
| extern void efx_nic_disable_interrupts(struct efx_nic *efx); |
| extern void efx_nic_fini_interrupt(struct efx_nic *efx); |
| extern irqreturn_t efx_nic_fatal_interrupt(struct efx_nic *efx); |
| extern irqreturn_t falcon_legacy_interrupt_a1(int irq, void *dev_id); |
| extern void falcon_irq_ack_a1(struct efx_nic *efx); |
| |
| #define EFX_IRQ_MOD_RESOLUTION 5 |
| |
| /* Global Resources */ |
| extern int efx_nic_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 void falcon_setup_xaui(struct efx_nic *efx); |
| extern int falcon_reset_xaui(struct efx_nic *efx); |
| extern void efx_nic_init_common(struct efx_nic *efx); |
| extern void efx_nic_push_rx_indir_table(struct efx_nic *efx); |
| |
| int efx_nic_alloc_buffer(struct efx_nic *efx, struct efx_buffer *buffer, |
| unsigned int len); |
| void efx_nic_free_buffer(struct efx_nic *efx, struct efx_buffer *buffer); |
| |
| /* Tests */ |
| struct efx_nic_register_test { |
| unsigned address; |
| efx_oword_t mask; |
| }; |
| extern int efx_nic_test_registers(struct efx_nic *efx, |
| const struct efx_nic_register_test *regs, |
| size_t n_regs); |
| |
| extern size_t efx_nic_get_regs_len(struct efx_nic *efx); |
| extern void efx_nic_get_regs(struct efx_nic *efx, void *buf); |
| |
| /************************************************************************** |
| * |
| * 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 efx_nic_generate_event(struct efx_channel *channel, |
| efx_qword_t *event); |
| |
| extern void falcon_poll_xmac(struct efx_nic *efx); |
| |
| #endif /* EFX_NIC_H */ |
