1 /****************************************************************************
2 * Driver for Solarflare Solarstorm network controllers and boards
3 * Copyright 2005-2006 Fen Systems Ltd.
4 * Copyright 2006-2011 Solarflare Communications Inc.
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.
14 #include <linux/i2c-algo-bit.h>
15 #include "net_driver.h"
21 * Falcon hardware control
25 EFX_REV_FALCON_A0 = 0,
26 EFX_REV_FALCON_A1 = 1,
27 EFX_REV_FALCON_B0 = 2,
31 static inline int efx_nic_rev(struct efx_nic *efx)
33 return efx->type->revision;
36 extern u32 efx_nic_fpga_ver(struct efx_nic *efx);
38 static inline bool efx_nic_has_mc(struct efx_nic *efx)
40 return efx_nic_rev(efx) >= EFX_REV_SIENA_A0;
42 /* NIC has two interlinked PCI functions for the same port. */
43 static inline bool efx_nic_is_dual_func(struct efx_nic *efx)
45 return efx_nic_rev(efx) < EFX_REV_FALCON_B0;
50 PHY_TYPE_TXC43128 = 1,
53 PHY_TYPE_QT2022C2 = 4,
55 PHY_TYPE_SFT9001A = 8,
57 PHY_TYPE_SFT9001B = 10,
60 #define FALCON_XMAC_LOOPBACKS \
61 ((1 << LOOPBACK_XGMII) | \
62 (1 << LOOPBACK_XGXS) | \
65 #define FALCON_GMAC_LOOPBACKS \
68 /* Alignment of PCIe DMA boundaries (4KB) */
69 #define EFX_PAGE_SIZE 4096
72 * struct falcon_board_type - board operations and type information
73 * @id: Board type id, as found in NVRAM
74 * @ref_model: Model number of Solarflare reference design
75 * @gen_type: Generic board type description
76 * @init: Allocate resources and initialise peripheral hardware
77 * @init_phy: Do board-specific PHY initialisation
78 * @fini: Shut down hardware and free resources
79 * @set_id_led: Set state of identifying LED or revert to automatic function
80 * @monitor: Board-specific health check function
82 struct falcon_board_type {
84 const char *ref_model;
86 int (*init) (struct efx_nic *nic);
87 void (*init_phy) (struct efx_nic *efx);
88 void (*fini) (struct efx_nic *nic);
89 void (*set_id_led) (struct efx_nic *efx, enum efx_led_mode mode);
90 int (*monitor) (struct efx_nic *nic);
94 * struct falcon_board - board information
95 * @type: Type of board
96 * @major: Major rev. ('A', 'B' ...)
97 * @minor: Minor rev. (0, 1, ...)
98 * @i2c_adap: I2C adapter for on-board peripherals
99 * @i2c_data: Data for bit-banging algorithm
100 * @hwmon_client: I2C client for hardware monitor
101 * @ioexp_client: I2C client for power/port control
103 struct falcon_board {
104 const struct falcon_board_type *type;
107 struct i2c_adapter i2c_adap;
108 struct i2c_algo_bit_data i2c_data;
109 struct i2c_client *hwmon_client, *ioexp_client;
113 * struct falcon_nic_data - Falcon NIC state
114 * @pci_dev2: Secondary function of Falcon A
115 * @board: Board state and functions
116 * @stats_disable_count: Nest count for disabling statistics fetches
117 * @stats_pending: Is there a pending DMA of MAC statistics.
118 * @stats_timer: A timer for regularly fetching MAC statistics.
119 * @stats_dma_done: Pointer to the flag which indicates DMA completion.
120 * @spi_flash: SPI flash device
121 * @spi_eeprom: SPI EEPROM device
122 * @spi_lock: SPI bus lock
123 * @mdio_lock: MDIO bus lock
124 * @xmac_poll_required: XMAC link state needs polling
126 struct falcon_nic_data {
127 struct pci_dev *pci_dev2;
128 struct falcon_board board;
129 unsigned int stats_disable_count;
131 struct timer_list stats_timer;
133 struct efx_spi_device spi_flash;
134 struct efx_spi_device spi_eeprom;
135 struct mutex spi_lock;
136 struct mutex mdio_lock;
137 bool xmac_poll_required;
140 static inline struct falcon_board *falcon_board(struct efx_nic *efx)
142 struct falcon_nic_data *data = efx->nic_data;
147 * struct siena_nic_data - Siena NIC state
148 * @mcdi: Management-Controller-to-Driver Interface
149 * @wol_filter_id: Wake-on-LAN packet filter id
151 struct siena_nic_data {
152 struct efx_mcdi_iface mcdi;
156 extern const struct efx_nic_type falcon_a1_nic_type;
157 extern const struct efx_nic_type falcon_b0_nic_type;
158 extern const struct efx_nic_type siena_a0_nic_type;
160 /**************************************************************************
164 **************************************************************************
167 extern int falcon_probe_board(struct efx_nic *efx, u16 revision_info);
170 extern int efx_nic_probe_tx(struct efx_tx_queue *tx_queue);
171 extern void efx_nic_init_tx(struct efx_tx_queue *tx_queue);
172 extern void efx_nic_fini_tx(struct efx_tx_queue *tx_queue);
173 extern void efx_nic_remove_tx(struct efx_tx_queue *tx_queue);
174 extern void efx_nic_push_buffers(struct efx_tx_queue *tx_queue);
177 extern int efx_nic_probe_rx(struct efx_rx_queue *rx_queue);
178 extern void efx_nic_init_rx(struct efx_rx_queue *rx_queue);
179 extern void efx_nic_fini_rx(struct efx_rx_queue *rx_queue);
180 extern void efx_nic_remove_rx(struct efx_rx_queue *rx_queue);
181 extern void efx_nic_notify_rx_desc(struct efx_rx_queue *rx_queue);
183 /* Event data path */
184 extern int efx_nic_probe_eventq(struct efx_channel *channel);
185 extern void efx_nic_init_eventq(struct efx_channel *channel);
186 extern void efx_nic_fini_eventq(struct efx_channel *channel);
187 extern void efx_nic_remove_eventq(struct efx_channel *channel);
188 extern int efx_nic_process_eventq(struct efx_channel *channel, int rx_quota);
189 extern void efx_nic_eventq_read_ack(struct efx_channel *channel);
190 extern bool efx_nic_event_present(struct efx_channel *channel);
193 extern void falcon_drain_tx_fifo(struct efx_nic *efx);
194 extern void falcon_reconfigure_mac_wrapper(struct efx_nic *efx);
196 /* Interrupts and test events */
197 extern int efx_nic_init_interrupt(struct efx_nic *efx);
198 extern void efx_nic_enable_interrupts(struct efx_nic *efx);
199 extern void efx_nic_generate_test_event(struct efx_channel *channel);
200 extern void efx_nic_generate_fill_event(struct efx_channel *channel);
201 extern void efx_nic_generate_interrupt(struct efx_nic *efx);
202 extern void efx_nic_disable_interrupts(struct efx_nic *efx);
203 extern void efx_nic_fini_interrupt(struct efx_nic *efx);
204 extern irqreturn_t efx_nic_fatal_interrupt(struct efx_nic *efx);
205 extern irqreturn_t falcon_legacy_interrupt_a1(int irq, void *dev_id);
206 extern void falcon_irq_ack_a1(struct efx_nic *efx);
208 #define EFX_IRQ_MOD_RESOLUTION 5
209 #define EFX_IRQ_MOD_MAX 0x1000
211 /* Global Resources */
212 extern int efx_nic_flush_queues(struct efx_nic *efx);
213 extern void falcon_start_nic_stats(struct efx_nic *efx);
214 extern void falcon_stop_nic_stats(struct efx_nic *efx);
215 extern void falcon_setup_xaui(struct efx_nic *efx);
216 extern int falcon_reset_xaui(struct efx_nic *efx);
217 extern void efx_nic_init_common(struct efx_nic *efx);
218 extern void efx_nic_push_rx_indir_table(struct efx_nic *efx);
220 int efx_nic_alloc_buffer(struct efx_nic *efx, struct efx_buffer *buffer,
222 void efx_nic_free_buffer(struct efx_nic *efx, struct efx_buffer *buffer);
225 struct efx_nic_register_test {
229 extern int efx_nic_test_registers(struct efx_nic *efx,
230 const struct efx_nic_register_test *regs,
233 extern size_t efx_nic_get_regs_len(struct efx_nic *efx);
234 extern void efx_nic_get_regs(struct efx_nic *efx, void *buf);
236 /**************************************************************************
240 **************************************************************************
243 #define FALCON_STAT_OFFSET(falcon_stat) EFX_VAL(falcon_stat, offset)
244 #define FALCON_STAT_WIDTH(falcon_stat) EFX_VAL(falcon_stat, WIDTH)
246 /* Retrieve statistic from statistics block */
247 #define FALCON_STAT(efx, falcon_stat, efx_stat) do { \
248 if (FALCON_STAT_WIDTH(falcon_stat) == 16) \
249 (efx)->mac_stats.efx_stat += le16_to_cpu( \
250 *((__force __le16 *) \
251 (efx->stats_buffer.addr + \
252 FALCON_STAT_OFFSET(falcon_stat)))); \
253 else if (FALCON_STAT_WIDTH(falcon_stat) == 32) \
254 (efx)->mac_stats.efx_stat += le32_to_cpu( \
255 *((__force __le32 *) \
256 (efx->stats_buffer.addr + \
257 FALCON_STAT_OFFSET(falcon_stat)))); \
259 (efx)->mac_stats.efx_stat += le64_to_cpu( \
260 *((__force __le64 *) \
261 (efx->stats_buffer.addr + \
262 FALCON_STAT_OFFSET(falcon_stat)))); \
265 #define FALCON_MAC_STATS_SIZE 0x100
267 #define MAC_DATA_LBN 0
268 #define MAC_DATA_WIDTH 32
270 extern void efx_nic_generate_event(struct efx_channel *channel,
273 extern void falcon_poll_xmac(struct efx_nic *efx);
275 #endif /* EFX_NIC_H */