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sfc: Refactor link configuration
[deliverable/linux.git] / drivers / net / sfc / falcon.h
CommitLineData
8ceee660
BH		 1/****************************************************************************
2 * Driver for Solarflare Solarstorm network controllers and boards
3 * Copyright 2005-2006 Fen Systems Ltd.
4 * Copyright 2006-2008 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_FALCON_H
12#define EFX_FALCON_H
13
5c16a96c 14#include <linux/i2c-algo-bit.h>
8ceee660 15#include "net_driver.h"
177dfcd8 16#include "efx.h"
8ceee660
BH		 17
18/*
19 * Falcon hardware control
20 */
21
daeda630
BH		 22enum {
23 EFX_REV_FALCON_A0 = 0,
24 EFX_REV_FALCON_A1 = 1,
25 EFX_REV_FALCON_B0 = 2,
8ceee660
BH		 26};
27
daeda630 28static inline int efx_nic_rev(struct efx_nic *efx)
55668611 29{
daeda630 30 return efx->type->revision;
55668611 31}
8ceee660 32
3759433d 33/**
44838a44
BH		 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
3759433d
BH		 38 * @init: Allocate resources and initialise peripheral hardware
39 * @init_phy: Do board-specific PHY initialisation
44838a44 40 * @fini: Shut down hardware and free resources
3759433d
BH		 41 * @set_id_led: Set state of identifying LED or revert to automatic function
42 * @monitor: Board-specific health check function
44838a44
BH		 43 */
44struct falcon_board_type {
45 u8 id;
46 const char *ref_model;
47 const char *gen_type;
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);
53};
54
55/**
56 * struct falcon_board - board information
57 * @type: Type of board
58 * @major: Major rev. ('A', 'B' ...)
59 * @minor: Minor rev. (0, 1, ...)
e775fb93
BH		 60 * @i2c_adap: I2C adapter for on-board peripherals
61 * @i2c_data: Data for bit-banging algorithm
3759433d
BH		 62 * @hwmon_client: I2C client for hardware monitor
63 * @ioexp_client: I2C client for power/port control
64 */
65struct falcon_board {
44838a44 66 const struct falcon_board_type *type;
3759433d
BH		 67 int major;
68 int minor;
e775fb93
BH		 69 struct i2c_adapter i2c_adap;
70 struct i2c_algo_bit_data i2c_data;
3759433d
BH		 71 struct i2c_client *hwmon_client, *ioexp_client;
72};
73
5c16a96c
BH		 74/**
75 * struct falcon_nic_data - Falcon NIC state
8986352a 76 * @pci_dev2: Secondary function of Falcon A
3759433d 77 * @board: Board state and functions
55edc6e6
BH		 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.
5c16a96c
BH		 82 */
83struct falcon_nic_data {
84 struct pci_dev *pci_dev2;
3759433d 85 struct falcon_board board;
55edc6e6
BH		 86 unsigned int stats_disable_count;
87 bool stats_pending;
88 struct timer_list stats_timer;
89 u32 *stats_dma_done;
5c16a96c
BH		 90};
91
278c0621
BH		 92static inline struct falcon_board *falcon_board(struct efx_nic *efx)
93{
3759433d
BH		 94 struct falcon_nic_data *data = efx->nic_data;
95 return &data->board;
278c0621
BH		 96}
97
daeda630
BH		 98extern struct efx_nic_type falcon_a1_nic_type;
99extern struct efx_nic_type falcon_b0_nic_type;
8ceee660
BH		 100
101/**************************************************************************
102 *
103 * Externs
104 *
105 **************************************************************************
106 */
107
5087b54d
BH		 108extern void falcon_probe_board(struct efx_nic *efx, u16 revision_info);
109
8ceee660
BH		 110/* TX data path */
111extern int falcon_probe_tx(struct efx_tx_queue *tx_queue);
bc3c90a2 112extern void falcon_init_tx(struct efx_tx_queue *tx_queue);
8ceee660
BH		 113extern void falcon_fini_tx(struct efx_tx_queue *tx_queue);
114extern void falcon_remove_tx(struct efx_tx_queue *tx_queue);
115extern void falcon_push_buffers(struct efx_tx_queue *tx_queue);
116
117/* RX data path */
118extern int falcon_probe_rx(struct efx_rx_queue *rx_queue);
bc3c90a2 119extern void falcon_init_rx(struct efx_rx_queue *rx_queue);
8ceee660
BH		 120extern void falcon_fini_rx(struct efx_rx_queue *rx_queue);
121extern void falcon_remove_rx(struct efx_rx_queue *rx_queue);
122extern void falcon_notify_rx_desc(struct efx_rx_queue *rx_queue);
123
124/* Event data path */
125extern int falcon_probe_eventq(struct efx_channel *channel);
bc3c90a2 126extern void falcon_init_eventq(struct efx_channel *channel);
8ceee660
BH		 127extern void falcon_fini_eventq(struct efx_channel *channel);
128extern void falcon_remove_eventq(struct efx_channel *channel);
42cbe2d7 129extern int falcon_process_eventq(struct efx_channel *channel, int rx_quota);
8ceee660
BH		 130extern void falcon_eventq_read_ack(struct efx_channel *channel);
131
8ceee660 132/* MAC/PHY */
8ceee660 133extern void falcon_drain_tx_fifo(struct efx_nic *efx);
8ceee660
BH		 134extern void falcon_reconfigure_mac_wrapper(struct efx_nic *efx);
135
136/* Interrupts and test events */
137extern int falcon_init_interrupt(struct efx_nic *efx);
138extern void falcon_enable_interrupts(struct efx_nic *efx);
139extern void falcon_generate_test_event(struct efx_channel *channel,
140 unsigned int magic);
141extern void falcon_generate_interrupt(struct efx_nic *efx);
8ceee660
BH		 142extern void falcon_disable_interrupts(struct efx_nic *efx);
143extern void falcon_fini_interrupt(struct efx_nic *efx);
144
6fb70fd1
BH		 145#define FALCON_IRQ_MOD_RESOLUTION 5
146
8ceee660 147/* Global Resources */
6bc5d3a9 148extern int falcon_flush_queues(struct efx_nic *efx);
55edc6e6
BH		 149extern void falcon_start_nic_stats(struct efx_nic *efx);
150extern void falcon_stop_nic_stats(struct efx_nic *efx);
8ceee660
BH		 151extern int falcon_reset_xaui(struct efx_nic *efx);
152
8c8661e4
BH		 153/* Tests */
154struct falcon_nvconfig;
155extern int falcon_read_nvram(struct efx_nic *efx,
156 struct falcon_nvconfig *nvconfig);
157extern int falcon_test_registers(struct efx_nic *efx);
158
8ceee660
BH		 159/**************************************************************************
160 *
161 * Falcon MAC stats
162 *
163 **************************************************************************
164 */
165
166#define FALCON_STAT_OFFSET(falcon_stat) EFX_VAL(falcon_stat, offset)
167#define FALCON_STAT_WIDTH(falcon_stat) EFX_VAL(falcon_stat, WIDTH)
168
169/* Retrieve statistic from statistics block */
170#define FALCON_STAT(efx, falcon_stat, efx_stat) do { \
171 if (FALCON_STAT_WIDTH(falcon_stat) == 16) \
172 (efx)->mac_stats.efx_stat += le16_to_cpu( \
173 *((__force __le16 *) \
174 (efx->stats_buffer.addr + \
175 FALCON_STAT_OFFSET(falcon_stat)))); \
176 else if (FALCON_STAT_WIDTH(falcon_stat) == 32) \
177 (efx)->mac_stats.efx_stat += le32_to_cpu( \
178 *((__force __le32 *) \
179 (efx->stats_buffer.addr + \
180 FALCON_STAT_OFFSET(falcon_stat)))); \
181 else \
182 (efx)->mac_stats.efx_stat += le64_to_cpu( \
183 *((__force __le64 *) \
184 (efx->stats_buffer.addr + \
185 FALCON_STAT_OFFSET(falcon_stat)))); \
186 } while (0)
187
188#define FALCON_MAC_STATS_SIZE 0x100
189
190#define MAC_DATA_LBN 0
191#define MAC_DATA_WIDTH 32
192
193extern void falcon_generate_event(struct efx_channel *channel,
194 efx_qword_t *event);
195
9007b9fa
BH		 196extern void falcon_poll_xmac(struct efx_nic *efx);
197
8ceee660 198#endif /* EFX_FALCON_H */
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