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