tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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
14#include "net_driver.h"
15#include "efx.h"
16
17/*
18 * Falcon hardware control
19 */
20
21enum falcon_revision {
22 FALCON_REV_A0 = 0,
23 FALCON_REV_A1 = 1,
24 FALCON_REV_B0 = 2,
25};
26
27static inline int falcon_rev(struct efx_nic *efx)
28{
29 return efx->pci_dev->revision;
30}
31
32extern struct efx_nic_type falcon_a_nic_type;
33extern struct efx_nic_type falcon_b_nic_type;
34
35/**************************************************************************
36 *
37 * Externs
38 *
39 **************************************************************************
40 */
41
42/* TX data path */
43extern int falcon_probe_tx(struct efx_tx_queue *tx_queue);
44extern void falcon_init_tx(struct efx_tx_queue *tx_queue);
45extern void falcon_fini_tx(struct efx_tx_queue *tx_queue);
46extern void falcon_remove_tx(struct efx_tx_queue *tx_queue);
47extern void falcon_push_buffers(struct efx_tx_queue *tx_queue);
48
49/* RX data path */
50extern int falcon_probe_rx(struct efx_rx_queue *rx_queue);
51extern void falcon_init_rx(struct efx_rx_queue *rx_queue);
52extern void falcon_fini_rx(struct efx_rx_queue *rx_queue);
53extern void falcon_remove_rx(struct efx_rx_queue *rx_queue);
54extern void falcon_notify_rx_desc(struct efx_rx_queue *rx_queue);
55
56/* Event data path */
57extern int falcon_probe_eventq(struct efx_channel *channel);
58extern void falcon_init_eventq(struct efx_channel *channel);
59extern void falcon_fini_eventq(struct efx_channel *channel);
60extern void falcon_remove_eventq(struct efx_channel *channel);
61extern int falcon_process_eventq(struct efx_channel *channel, int rx_quota);
62extern void falcon_eventq_read_ack(struct efx_channel *channel);
63
64/* Ports */
65extern int falcon_probe_port(struct efx_nic *efx);
66extern void falcon_remove_port(struct efx_nic *efx);
67
68/* MAC/PHY */
69extern int falcon_switch_mac(struct efx_nic *efx);
70extern bool falcon_xaui_link_ok(struct efx_nic *efx);
71extern int falcon_dma_stats(struct efx_nic *efx,
72 unsigned int done_offset);
73extern void falcon_drain_tx_fifo(struct efx_nic *efx);
74extern void falcon_deconfigure_mac_wrapper(struct efx_nic *efx);
75extern void falcon_reconfigure_mac_wrapper(struct efx_nic *efx);
76
77/* Interrupts and test events */
78extern int falcon_init_interrupt(struct efx_nic *efx);
79extern void falcon_enable_interrupts(struct efx_nic *efx);
80extern void falcon_generate_test_event(struct efx_channel *channel,
81 unsigned int magic);
82extern void falcon_sim_phy_event(struct efx_nic *efx);
83extern void falcon_generate_interrupt(struct efx_nic *efx);
84extern void falcon_set_int_moderation(struct efx_channel *channel);
85extern void falcon_disable_interrupts(struct efx_nic *efx);
86extern void falcon_fini_interrupt(struct efx_nic *efx);
87
88#define FALCON_IRQ_MOD_RESOLUTION 5
89
90/* Global Resources */
91extern int falcon_probe_nic(struct efx_nic *efx);
92extern int falcon_probe_resources(struct efx_nic *efx);
93extern int falcon_init_nic(struct efx_nic *efx);
94extern int falcon_flush_queues(struct efx_nic *efx);
95extern int falcon_reset_hw(struct efx_nic *efx, enum reset_type method);
96extern void falcon_remove_resources(struct efx_nic *efx);
97extern void falcon_remove_nic(struct efx_nic *efx);
98extern void falcon_update_nic_stats(struct efx_nic *efx);
99extern void falcon_set_multicast_hash(struct efx_nic *efx);
100extern int falcon_reset_xaui(struct efx_nic *efx);
101
102/* Tests */
103struct falcon_nvconfig;
104extern int falcon_read_nvram(struct efx_nic *efx,
105 struct falcon_nvconfig *nvconfig);
106extern int falcon_test_registers(struct efx_nic *efx);
107
108/**************************************************************************
109 *
110 * Falcon MAC stats
111 *
112 **************************************************************************
113 */
114
115#define FALCON_STAT_OFFSET(falcon_stat) EFX_VAL(falcon_stat, offset)
116#define FALCON_STAT_WIDTH(falcon_stat) EFX_VAL(falcon_stat, WIDTH)
117
118/* Retrieve statistic from statistics block */
119#define FALCON_STAT(efx, falcon_stat, efx_stat) do { \
120 if (FALCON_STAT_WIDTH(falcon_stat) == 16) \
121 (efx)->mac_stats.efx_stat += le16_to_cpu( \
122 *((__force __le16 *) \
123 (efx->stats_buffer.addr + \
124 FALCON_STAT_OFFSET(falcon_stat)))); \
125 else if (FALCON_STAT_WIDTH(falcon_stat) == 32) \
126 (efx)->mac_stats.efx_stat += le32_to_cpu( \
127 *((__force __le32 *) \
128 (efx->stats_buffer.addr + \
129 FALCON_STAT_OFFSET(falcon_stat)))); \
130 else \
131 (efx)->mac_stats.efx_stat += le64_to_cpu( \
132 *((__force __le64 *) \
133 (efx->stats_buffer.addr + \
134 FALCON_STAT_OFFSET(falcon_stat)))); \
135 } while (0)
136
137#define FALCON_MAC_STATS_SIZE 0x100
138
139#define MAC_DATA_LBN 0
140#define MAC_DATA_WIDTH 32
141
142extern void falcon_generate_event(struct efx_channel *channel,
143 efx_qword_t *event);
144
145#endif /* EFX_FALCON_H */