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-rw-r--r--drivers/net/atl1/atl1.h283
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diff --git a/drivers/net/atl1/atl1.h b/drivers/net/atl1/atl1.h
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1/*
2 * Copyright(c) 2005 - 2006 Attansic Corporation. All rights reserved.
3 * Copyright(c) 2006 Chris Snook <csnook@redhat.com>
4 * Copyright(c) 2006 Jay Cliburn <jcliburn@gmail.com>
5 *
6 * Derived from Intel e1000 driver
7 * Copyright(c) 1999 - 2005 Intel Corporation. All rights reserved.
8 *
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License as published by the Free
11 * Software Foundation; either version 2 of the License, or (at your option)
12 * any later version.
13 *
14 * This program is distributed in the hope that it will be useful, but WITHOUT
15 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
16 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
17 * more details.
18 *
19 * You should have received a copy of the GNU General Public License along with
20 * this program; if not, write to the Free Software Foundation, Inc., 59
21 * Temple Place - Suite 330, Boston, MA 02111-1307, USA.
22 */
23
24#ifndef _ATL1_H_
25#define _ATL1_H_
26
27#include <linux/types.h>
28#include <linux/if_vlan.h>
29
30#include "atl1_hw.h"
31
32/* function prototypes needed by multiple files */
33s32 atl1_up(struct atl1_adapter *adapter);
34void atl1_down(struct atl1_adapter *adapter);
35int atl1_reset(struct atl1_adapter *adapter);
36s32 atl1_setup_ring_resources(struct atl1_adapter *adapter);
37void atl1_free_ring_resources(struct atl1_adapter *adapter);
38
39extern char atl1_driver_name[];
40extern char atl1_driver_version[];
41extern const struct ethtool_ops atl1_ethtool_ops;
42
43struct atl1_adapter;
44
45#define ATL1_MAX_INTR 3
46
47#define ATL1_DEFAULT_TPD 256
48#define ATL1_MAX_TPD 1024
49#define ATL1_MIN_TPD 64
50#define ATL1_DEFAULT_RFD 512
51#define ATL1_MIN_RFD 128
52#define ATL1_MAX_RFD 2048
53
54#define ATL1_GET_DESC(R, i, type) (&(((type *)((R)->desc))[i]))
55#define ATL1_RFD_DESC(R, i) ATL1_GET_DESC(R, i, struct rx_free_desc)
56#define ATL1_TPD_DESC(R, i) ATL1_GET_DESC(R, i, struct tx_packet_desc)
57#define ATL1_RRD_DESC(R, i) ATL1_GET_DESC(R, i, struct rx_return_desc)
58
59/*
60 * Some workarounds require millisecond delays and are run during interrupt
61 * context. Most notably, when establishing link, the phy may need tweaking
62 * but cannot process phy register reads/writes faster than millisecond
63 * intervals...and we establish link due to a "link status change" interrupt.
64 */
65
66/*
67 * wrapper around a pointer to a socket buffer,
68 * so a DMA handle can be stored along with the buffer
69 */
70struct atl1_buffer {
71 struct sk_buff *skb;
72 u16 length;
73 u16 alloced;
74 dma_addr_t dma;
75};
76
77#define MAX_TX_BUF_LEN 0x3000 /* 12KB */
78
79struct atl1_tpd_ring {
80 void *desc; /* pointer to the descriptor ring memory */
81 dma_addr_t dma; /* physical adress of the descriptor ring */
82 u16 size; /* length of descriptor ring in bytes */
83 u16 count; /* number of descriptors in the ring */
84 u16 hw_idx; /* hardware index */
85 atomic_t next_to_clean;
86 atomic_t next_to_use;
87 struct atl1_buffer *buffer_info;
88};
89
90struct atl1_rfd_ring {
91 void *desc;
92 dma_addr_t dma;
93 u16 size;
94 u16 count;
95 atomic_t next_to_use;
96 u16 next_to_clean;
97 struct atl1_buffer *buffer_info;
98};
99
100struct atl1_rrd_ring {
101 void *desc;
102 dma_addr_t dma;
103 unsigned int size;
104 u16 count;
105 u16 next_to_use;
106 atomic_t next_to_clean;
107};
108
109struct atl1_ring_header {
110 void *desc; /* pointer to the descriptor ring memory */
111 dma_addr_t dma; /* physical adress of the descriptor ring */
112 unsigned int size; /* length of descriptor ring in bytes */
113};
114
115struct atl1_cmb {
116 struct coals_msg_block *cmb;
117 dma_addr_t dma;
118};
119
120struct atl1_smb {
121 struct stats_msg_block *smb;
122 dma_addr_t dma;
123};
124
125/* Statistics counters */
126struct atl1_sft_stats {
127 u64 rx_packets;
128 u64 tx_packets;
129 u64 rx_bytes;
130 u64 tx_bytes;
131 u64 multicast;
132 u64 collisions;
133 u64 rx_errors;
134 u64 rx_length_errors;
135 u64 rx_crc_errors;
136 u64 rx_frame_errors;
137 u64 rx_fifo_errors;
138 u64 rx_missed_errors;
139 u64 tx_errors;
140 u64 tx_fifo_errors;
141 u64 tx_aborted_errors;
142 u64 tx_window_errors;
143 u64 tx_carrier_errors;
144
145 u64 tx_pause; /* num Pause packet transmitted. */
146 u64 excecol; /* num tx packets aborted due to excessive collisions. */
147 u64 deffer; /* num deferred tx packets */
148 u64 scc; /* num packets subsequently transmitted successfully w/ single prior collision. */
149 u64 mcc; /* num packets subsequently transmitted successfully w/ multiple prior collisions. */
150 u64 latecol; /* num tx packets w/ late collisions. */
151 u64 tx_underun; /* num tx packets aborted due to transmit FIFO underrun, or TRD FIFO underrun */
152 u64 tx_trunc; /* num tx packets truncated due to size exceeding MTU, regardless whether truncated by Selene or not. (The name doesn't really reflect the meaning in this case.) */
153 u64 rx_pause; /* num Pause packets received. */
154 u64 rx_rrd_ov;
155 u64 rx_trunc;
156};
157
158/* board specific private data structure */
159#define ATL1_REGS_LEN 8
160
161/* Structure containing variables used by the shared code */
162struct atl1_hw {
163 u8 __iomem *hw_addr;
164 struct atl1_adapter *back;
165 enum atl1_dma_order dma_ord;
166 enum atl1_dma_rcb rcb_value;
167 enum atl1_dma_req_block dmar_block;
168 enum atl1_dma_req_block dmaw_block;
169 u8 preamble_len;
170 u8 max_retry; /* Retransmission maximum, after which the packet will be discarded */
171 u8 jam_ipg; /* IPG to start JAM for collision based flow control in half-duplex mode. In units of 8-bit time */
172 u8 ipgt; /* Desired back to back inter-packet gap. The default is 96-bit time */
173 u8 min_ifg; /* Minimum number of IFG to enforce in between RX frames. Frame gap below such IFP is dropped */
174 u8 ipgr1; /* 64bit Carrier-Sense window */
175 u8 ipgr2; /* 96-bit IPG window */
176 u8 tpd_burst; /* Number of TPD to prefetch in cache-aligned burst. Each TPD is 16 bytes long */
177 u8 rfd_burst; /* Number of RFD to prefetch in cache-aligned burst. Each RFD is 12 bytes long */
178 u8 rfd_fetch_gap;
179 u8 rrd_burst; /* Threshold number of RRDs that can be retired in a burst. Each RRD is 16 bytes long */
180 u8 tpd_fetch_th;
181 u8 tpd_fetch_gap;
182 u16 tx_jumbo_task_th;
183 u16 txf_burst; /* Number of data bytes to read in a cache-aligned burst. Each SRAM entry is
184 8 bytes long */
185 u16 rx_jumbo_th; /* Jumbo packet size for non-VLAN packet. VLAN packets should add 4 bytes */
186 u16 rx_jumbo_lkah;
187 u16 rrd_ret_timer; /* RRD retirement timer. Decrement by 1 after every 512ns passes. */
188 u16 lcol; /* Collision Window */
189
190 u16 cmb_tpd;
191 u16 cmb_rrd;
192 u16 cmb_rx_timer;
193 u16 cmb_tx_timer;
194 u32 smb_timer;
195 u16 media_type;
196 u16 autoneg_advertised;
197 u16 pci_cmd_word;
198
199 u16 mii_autoneg_adv_reg;
200 u16 mii_1000t_ctrl_reg;
201
202 u32 mem_rang;
203 u32 txcw;
204 u32 max_frame_size;
205 u32 min_frame_size;
206 u32 mc_filter_type;
207 u32 num_mc_addrs;
208 u32 collision_delta;
209 u32 tx_packet_delta;
210 u16 phy_spd_default;
211
212 u16 dev_rev;
213 u8 revision_id;
214
215 /* spi flash */
216 u8 flash_vendor;
217
218 u8 dma_fairness;
219 u8 mac_addr[ETH_ALEN];
220 u8 perm_mac_addr[ETH_ALEN];
221
222 /* bool phy_preamble_sup; */
223 bool phy_configured;
224};
225
226struct atl1_adapter {
227 /* OS defined structs */
228 struct net_device *netdev;
229 struct pci_dev *pdev;
230 struct net_device_stats net_stats;
231 struct atl1_sft_stats soft_stats;
232
233 struct vlan_group *vlgrp;
234 u32 rx_buffer_len;
235 u32 wol;
236 u16 link_speed;
237 u16 link_duplex;
238 spinlock_t lock;
239 atomic_t irq_sem;
240 struct work_struct tx_timeout_task;
241 struct work_struct link_chg_task;
242 struct work_struct pcie_dma_to_rst_task;
243 struct timer_list watchdog_timer;
244 struct timer_list phy_config_timer;
245 bool phy_timer_pending;
246
247 bool mac_disabled;
248
249 /* All descriptor rings' memory */
250 struct atl1_ring_header ring_header;
251
252 /* TX */
253 struct atl1_tpd_ring tpd_ring;
254 spinlock_t mb_lock;
255
256 /* RX */
257 struct atl1_rfd_ring rfd_ring;
258 struct atl1_rrd_ring rrd_ring;
259 u64 hw_csum_err;
260 u64 hw_csum_good;
261
262 u32 gorcl;
263 u64 gorcl_old;
264
265 /* Interrupt Moderator timer ( 2us resolution) */
266 u16 imt;
267 /* Interrupt Clear timer (2us resolution) */
268 u16 ict;
269
270 /* MII interface info */
271 struct mii_if_info mii;
272
273 /* structs defined in atl1_hw.h */
274 u32 bd_number; /* board number */
275 bool pci_using_64;
276 struct atl1_hw hw;
277 struct atl1_smb smb;
278 struct atl1_cmb cmb;
279
280 u32 pci_state[16];
281};
282
283#endif /* _ATL1_H_ */