1 /****************************************************************************
2 * Driver for Solarflare Solarstorm network controllers and boards
3 * Copyright 2005-2006 Fen Systems Ltd.
4 * Copyright 2006-2008 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"
19 * Falcon hardware control
23 EFX_REV_FALCON_A0 = 0,
24 EFX_REV_FALCON_A1 = 1,
25 EFX_REV_FALCON_B0 = 2,
28 static inline int efx_nic_rev(struct efx_nic *efx)
30 return efx->type->revision;
34 * struct falcon_board_type - board operations and type information
35 * @id: Board type id, as found in NVRAM
36 * @ref_model: Model number of Solarflare reference design
37 * @gen_type: Generic board type description
38 * @init: Allocate resources and initialise peripheral hardware
39 * @init_phy: Do board-specific PHY initialisation
40 * @fini: Shut down hardware and free resources
41 * @set_id_led: Set state of identifying LED or revert to automatic function
42 * @monitor: Board-specific health check function
44 struct falcon_board_type {
46 const char *ref_model;
48 int (*init) (struct efx_nic *nic);
49 void (*init_phy) (struct efx_nic *efx);
50 void (*fini) (struct efx_nic *nic);
51 void (*set_id_led) (struct efx_nic *efx, enum efx_led_mode mode);
52 int (*monitor) (struct efx_nic *nic);
56 * struct falcon_board - board information
57 * @type: Type of board
58 * @major: Major rev. ('A', 'B' ...)
59 * @minor: Minor rev. (0, 1, ...)
60 * @i2c_adap: I2C adapter for on-board peripherals
61 * @i2c_data: Data for bit-banging algorithm
62 * @hwmon_client: I2C client for hardware monitor
63 * @ioexp_client: I2C client for power/port control
66 const struct falcon_board_type *type;
69 struct i2c_adapter i2c_adap;
70 struct i2c_algo_bit_data i2c_data;
71 struct i2c_client *hwmon_client, *ioexp_client;
75 * struct falcon_nic_data - Falcon NIC state
76 * @pci_dev2: Secondary function of Falcon A
77 * @board: Board state and functions
78 * @stats_disable_count: Nest count for disabling statistics fetches
79 * @stats_pending: Is there a pending DMA of MAC statistics.
80 * @stats_timer: A timer for regularly fetching MAC statistics.
81 * @stats_dma_done: Pointer to the flag which indicates DMA completion.
83 struct falcon_nic_data {
84 struct pci_dev *pci_dev2;
85 struct falcon_board board;
86 unsigned int stats_disable_count;
88 struct timer_list stats_timer;
92 static inline struct falcon_board *falcon_board(struct efx_nic *efx)
94 struct falcon_nic_data *data = efx->nic_data;
98 extern struct efx_nic_type falcon_a1_nic_type;
99 extern struct efx_nic_type falcon_b0_nic_type;
101 /**************************************************************************
105 **************************************************************************
108 extern void falcon_probe_board(struct efx_nic *efx, u16 revision_info);
111 extern int falcon_probe_tx(struct efx_tx_queue *tx_queue);
112 extern void falcon_init_tx(struct efx_tx_queue *tx_queue);
113 extern void falcon_fini_tx(struct efx_tx_queue *tx_queue);
114 extern void falcon_remove_tx(struct efx_tx_queue *tx_queue);
115 extern void falcon_push_buffers(struct efx_tx_queue *tx_queue);
118 extern int falcon_probe_rx(struct efx_rx_queue *rx_queue);
119 extern void falcon_init_rx(struct efx_rx_queue *rx_queue);
120 extern void falcon_fini_rx(struct efx_rx_queue *rx_queue);
121 extern void falcon_remove_rx(struct efx_rx_queue *rx_queue);
122 extern void falcon_notify_rx_desc(struct efx_rx_queue *rx_queue);
124 /* Event data path */
125 extern int falcon_probe_eventq(struct efx_channel *channel);
126 extern void falcon_init_eventq(struct efx_channel *channel);
127 extern void falcon_fini_eventq(struct efx_channel *channel);
128 extern void falcon_remove_eventq(struct efx_channel *channel);
129 extern int falcon_process_eventq(struct efx_channel *channel, int rx_quota);
130 extern void falcon_eventq_read_ack(struct efx_channel *channel);
133 extern void falcon_drain_tx_fifo(struct efx_nic *efx);
134 extern void falcon_reconfigure_mac_wrapper(struct efx_nic *efx);
136 /* Interrupts and test events */
137 extern int falcon_init_interrupt(struct efx_nic *efx);
138 extern void falcon_enable_interrupts(struct efx_nic *efx);
139 extern void falcon_generate_test_event(struct efx_channel *channel,
141 extern void falcon_generate_interrupt(struct efx_nic *efx);
142 extern void falcon_disable_interrupts(struct efx_nic *efx);
143 extern void falcon_fini_interrupt(struct efx_nic *efx);
145 #define FALCON_IRQ_MOD_RESOLUTION 5
147 /* Global Resources */
148 extern int falcon_flush_queues(struct efx_nic *efx);
149 extern void falcon_start_nic_stats(struct efx_nic *efx);
150 extern void falcon_stop_nic_stats(struct efx_nic *efx);
151 extern int falcon_reset_xaui(struct efx_nic *efx);
154 struct falcon_nvconfig;
155 extern int falcon_read_nvram(struct efx_nic *efx,
156 struct falcon_nvconfig *nvconfig);
158 /**************************************************************************
162 **************************************************************************
165 #define FALCON_STAT_OFFSET(falcon_stat) EFX_VAL(falcon_stat, offset)
166 #define FALCON_STAT_WIDTH(falcon_stat) EFX_VAL(falcon_stat, WIDTH)
168 /* Retrieve statistic from statistics block */
169 #define FALCON_STAT(efx, falcon_stat, efx_stat) do { \
170 if (FALCON_STAT_WIDTH(falcon_stat) == 16) \
171 (efx)->mac_stats.efx_stat += le16_to_cpu( \
172 *((__force __le16 *) \
173 (efx->stats_buffer.addr + \
174 FALCON_STAT_OFFSET(falcon_stat)))); \
175 else if (FALCON_STAT_WIDTH(falcon_stat) == 32) \
176 (efx)->mac_stats.efx_stat += le32_to_cpu( \
177 *((__force __le32 *) \
178 (efx->stats_buffer.addr + \
179 FALCON_STAT_OFFSET(falcon_stat)))); \
181 (efx)->mac_stats.efx_stat += le64_to_cpu( \
182 *((__force __le64 *) \
183 (efx->stats_buffer.addr + \
184 FALCON_STAT_OFFSET(falcon_stat)))); \
187 #define FALCON_MAC_STATS_SIZE 0x100
189 #define MAC_DATA_LBN 0
190 #define MAC_DATA_WIDTH 32
192 extern void falcon_generate_event(struct efx_channel *channel,
195 extern void falcon_poll_xmac(struct efx_nic *efx);
197 #endif /* EFX_FALCON_H */