1/**************************************************************************** 2 * Driver for Solarflare Solarstorm network controllers and boards 3 * Copyright 2005-2006 Fen Systems Ltd. 4 * Copyright 2006-2009 Solarflare Communications Inc. 5 * 6 * This program is free software; you can redistribute it and/or modify it 7 * under the terms of the GNU General Public License version 2 as published 8 * by the Free Software Foundation, incorporated herein by reference. 9 */ 10 11#ifndef EFX_NIC_H 12#define EFX_NIC_H 13 14#include <linux/i2c-algo-bit.h> 15#include "net_driver.h" 16#include "efx.h" 17#include "mcdi.h" 18 19/* 20 * Falcon hardware control 21 */ 22 23enum { 24 EFX_REV_FALCON_A0 = 0, 25 EFX_REV_FALCON_A1 = 1, 26 EFX_REV_FALCON_B0 = 2, 27 EFX_REV_SIENA_A0 = 3, 28}; 29 30static inline int efx_nic_rev(struct efx_nic *efx) 31{ 32 return efx->type->revision; 33} 34 35extern u32 efx_nic_fpga_ver(struct efx_nic *efx); 36 37static inline bool efx_nic_has_mc(struct efx_nic *efx) 38{ 39 return efx_nic_rev(efx) >= EFX_REV_SIENA_A0; 40} 41/* NIC has two interlinked PCI functions for the same port. */ 42static inline bool efx_nic_is_dual_func(struct efx_nic *efx) 43{ 44 return efx_nic_rev(efx) < EFX_REV_FALCON_B0; 45} 46 47enum { 48 PHY_TYPE_NONE = 0, 49 PHY_TYPE_TXC43128 = 1, 50 PHY_TYPE_88E1111 = 2, 51 PHY_TYPE_SFX7101 = 3, 52 PHY_TYPE_QT2022C2 = 4, 53 PHY_TYPE_PM8358 = 6, 54 PHY_TYPE_SFT9001A = 8, 55 PHY_TYPE_QT2025C = 9, 56 PHY_TYPE_SFT9001B = 10, 57}; 58 59#define FALCON_XMAC_LOOPBACKS \ 60 ((1 << LOOPBACK_XGMII) | \ 61 (1 << LOOPBACK_XGXS) | \ 62 (1 << LOOPBACK_XAUI)) 63 64#define FALCON_GMAC_LOOPBACKS \ 65 (1 << LOOPBACK_GMAC) 66 67/** 68 * struct falcon_board_type - board operations and type information 69 * @id: Board type id, as found in NVRAM 70 * @ref_model: Model number of Solarflare reference design 71 * @gen_type: Generic board type description 72 * @init: Allocate resources and initialise peripheral hardware 73 * @init_phy: Do board-specific PHY initialisation 74 * @fini: Shut down hardware and free resources 75 * @set_id_led: Set state of identifying LED or revert to automatic function 76 * @monitor: Board-specific health check function 77 */ 78struct falcon_board_type { 79 u8 id; 80 const char *ref_model; 81 const char *gen_type; 82 int (*init) (struct efx_nic *nic); 83 void (*init_phy) (struct efx_nic *efx); 84 void (*fini) (struct efx_nic *nic); 85 void (*set_id_led) (struct efx_nic *efx, enum efx_led_mode mode); 86 int (*monitor) (struct efx_nic *nic); 87}; 88 89/** 90 * struct falcon_board - board information 91 * @type: Type of board 92 * @major: Major rev. ('A', 'B' ...) 93 * @minor: Minor rev. (0, 1, ...) 94 * @i2c_adap: I2C adapter for on-board peripherals 95 * @i2c_data: Data for bit-banging algorithm 96 * @hwmon_client: I2C client for hardware monitor 97 * @ioexp_client: I2C client for power/port control 98 */ 99struct falcon_board { 100 const struct falcon_board_type *type; 101 int major; 102 int minor; 103 struct i2c_adapter i2c_adap; 104 struct i2c_algo_bit_data i2c_data; 105 struct i2c_client *hwmon_client, *ioexp_client; 106}; 107 108/** 109 * struct falcon_nic_data - Falcon NIC state 110 * @pci_dev2: Secondary function of Falcon A 111 * @board: Board state and functions 112 * @stats_disable_count: Nest count for disabling statistics fetches 113 * @stats_pending: Is there a pending DMA of MAC statistics. 114 * @stats_timer: A timer for regularly fetching MAC statistics. 115 * @stats_dma_done: Pointer to the flag which indicates DMA completion. 116 */ 117struct falcon_nic_data { 118 struct pci_dev *pci_dev2; 119 struct falcon_board board; 120 unsigned int stats_disable_count; 121 bool stats_pending; 122 struct timer_list stats_timer; 123 u32 *stats_dma_done; 124}; 125 126static inline struct falcon_board *falcon_board(struct efx_nic *efx) 127{ 128 struct falcon_nic_data *data = efx->nic_data; 129 return &data->board; 130} 131 132/** 133 * struct siena_nic_data - Siena NIC state 134 * @fw_version: Management controller firmware version 135 * @fw_build: Firmware build number 136 * @mcdi: Management-Controller-to-Driver Interface 137 * @wol_filter_id: Wake-on-LAN packet filter id 138 * @ipv6_rss_key: Toeplitz hash key for IPv6 RSS 139 */ 140struct siena_nic_data { 141 u64 fw_version; 142 u32 fw_build; 143 struct efx_mcdi_iface mcdi; 144 int wol_filter_id; 145}; 146 147extern void siena_print_fwver(struct efx_nic *efx, char *buf, size_t len); 148 149extern struct efx_nic_type falcon_a1_nic_type; 150extern struct efx_nic_type falcon_b0_nic_type; 151extern struct efx_nic_type siena_a0_nic_type; 152 153/************************************************************************** 154 * 155 * Externs 156 * 157 ************************************************************************** 158 */ 159 160extern int falcon_probe_board(struct efx_nic *efx, u16 revision_info); 161 162/* TX data path */ 163extern int efx_nic_probe_tx(struct efx_tx_queue *tx_queue); 164extern void efx_nic_init_tx(struct efx_tx_queue *tx_queue); 165extern void efx_nic_fini_tx(struct efx_tx_queue *tx_queue); 166extern void efx_nic_remove_tx(struct efx_tx_queue *tx_queue); 167extern void efx_nic_push_buffers(struct efx_tx_queue *tx_queue); 168 169/* RX data path */ 170extern int efx_nic_probe_rx(struct efx_rx_queue *rx_queue); 171extern void efx_nic_init_rx(struct efx_rx_queue *rx_queue); 172extern void efx_nic_fini_rx(struct efx_rx_queue *rx_queue); 173extern void efx_nic_remove_rx(struct efx_rx_queue *rx_queue); 174extern void efx_nic_notify_rx_desc(struct efx_rx_queue *rx_queue); 175 176/* Event data path */ 177extern int efx_nic_probe_eventq(struct efx_channel *channel); 178extern void efx_nic_init_eventq(struct efx_channel *channel); 179extern void efx_nic_fini_eventq(struct efx_channel *channel); 180extern void efx_nic_remove_eventq(struct efx_channel *channel); 181extern int efx_nic_process_eventq(struct efx_channel *channel, int rx_quota); 182extern void efx_nic_eventq_read_ack(struct efx_channel *channel); 183 184/* MAC/PHY */ 185extern void falcon_drain_tx_fifo(struct efx_nic *efx); 186extern void falcon_reconfigure_mac_wrapper(struct efx_nic *efx); 187extern int efx_nic_rx_xoff_thresh, efx_nic_rx_xon_thresh; 188 189/* Interrupts and test events */ 190extern int efx_nic_init_interrupt(struct efx_nic *efx); 191extern void efx_nic_enable_interrupts(struct efx_nic *efx); 192extern void efx_nic_generate_test_event(struct efx_channel *channel); 193extern void efx_nic_generate_fill_event(struct efx_channel *channel); 194extern void efx_nic_generate_interrupt(struct efx_nic *efx); 195extern void efx_nic_disable_interrupts(struct efx_nic *efx); 196extern void efx_nic_fini_interrupt(struct efx_nic *efx); 197extern irqreturn_t efx_nic_fatal_interrupt(struct efx_nic *efx); 198extern irqreturn_t falcon_legacy_interrupt_a1(int irq, void *dev_id); 199extern void falcon_irq_ack_a1(struct efx_nic *efx); 200 201#define EFX_IRQ_MOD_RESOLUTION 5 202 203/* Global Resources */ 204extern int efx_nic_flush_queues(struct efx_nic *efx); 205extern void falcon_start_nic_stats(struct efx_nic *efx); 206extern void falcon_stop_nic_stats(struct efx_nic *efx); 207extern void falcon_setup_xaui(struct efx_nic *efx); 208extern int falcon_reset_xaui(struct efx_nic *efx); 209extern void efx_nic_init_common(struct efx_nic *efx); 210extern void efx_nic_push_rx_indir_table(struct efx_nic *efx); 211 212int efx_nic_alloc_buffer(struct efx_nic *efx, struct efx_buffer *buffer, 213 unsigned int len); 214void efx_nic_free_buffer(struct efx_nic *efx, struct efx_buffer *buffer); 215 216/* Tests */ 217struct efx_nic_register_test { 218 unsigned address; 219 efx_oword_t mask; 220}; 221extern int efx_nic_test_registers(struct efx_nic *efx, 222 const struct efx_nic_register_test *regs, 223 size_t n_regs); 224 225extern size_t efx_nic_get_regs_len(struct efx_nic *efx); 226extern void efx_nic_get_regs(struct efx_nic *efx, void *buf); 227 228/************************************************************************** 229 * 230 * Falcon MAC stats 231 * 232 ************************************************************************** 233 */ 234 235#define FALCON_STAT_OFFSET(falcon_stat) EFX_VAL(falcon_stat, offset) 236#define FALCON_STAT_WIDTH(falcon_stat) EFX_VAL(falcon_stat, WIDTH) 237 238/* Retrieve statistic from statistics block */ 239#define FALCON_STAT(efx, falcon_stat, efx_stat) do { \ 240 if (FALCON_STAT_WIDTH(falcon_stat) == 16) \ 241 (efx)->mac_stats.efx_stat += le16_to_cpu( \ 242 *((__force __le16 *) \ 243 (efx->stats_buffer.addr + \ 244 FALCON_STAT_OFFSET(falcon_stat)))); \ 245 else if (FALCON_STAT_WIDTH(falcon_stat) == 32) \ 246 (efx)->mac_stats.efx_stat += le32_to_cpu( \ 247 *((__force __le32 *) \ 248 (efx->stats_buffer.addr + \ 249 FALCON_STAT_OFFSET(falcon_stat)))); \ 250 else \ 251 (efx)->mac_stats.efx_stat += le64_to_cpu( \ 252 *((__force __le64 *) \ 253 (efx->stats_buffer.addr + \ 254 FALCON_STAT_OFFSET(falcon_stat)))); \ 255 } while (0) 256 257#define FALCON_MAC_STATS_SIZE 0x100 258 259#define MAC_DATA_LBN 0 260#define MAC_DATA_WIDTH 32 261 262extern void efx_nic_generate_event(struct efx_channel *channel, 263 efx_qword_t *event); 264 265extern void falcon_poll_xmac(struct efx_nic *efx); 266 267#endif /* EFX_NIC_H */ 268