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-rw-r--r--drivers/net/atlx/atl1.h286
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diff --git a/drivers/net/atlx/atl1.h b/drivers/net/atlx/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#define ATL1_MAX_TX_BUF_LEN 0x3000 /* 12288 bytes */
47
48#define ATL1_DEFAULT_TPD 256
49#define ATL1_MAX_TPD 1024
50#define ATL1_MIN_TPD 64
51#define ATL1_DEFAULT_RFD 512
52#define ATL1_MIN_RFD 128
53#define ATL1_MAX_RFD 2048
54
55#define ATL1_GET_DESC(R, i, type) (&(((type *)((R)->desc))[i]))
56#define ATL1_RFD_DESC(R, i) ATL1_GET_DESC(R, i, struct rx_free_desc)
57#define ATL1_TPD_DESC(R, i) ATL1_GET_DESC(R, i, struct tx_packet_desc)
58#define ATL1_RRD_DESC(R, i) ATL1_GET_DESC(R, i, struct rx_return_desc)
59
60/*
61 * This detached comment is preserved for documentation purposes only.
62 * It was originally attached to some code that got deleted, but seems
63 * important enough to keep around...
64 *
65 * <begin detached comment>
66 * Some workarounds require millisecond delays and are run during interrupt
67 * context. Most notably, when establishing link, the phy may need tweaking
68 * but cannot process phy register reads/writes faster than millisecond
69 * intervals...and we establish link due to a "link status change" interrupt.
70 * <end detached comment>
71 */
72
73/*
74 * atl1_ring_header represents a single, contiguous block of DMA space
75 * mapped for the three descriptor rings (tpd, rfd, rrd) and the two
76 * message blocks (cmb, smb) described below
77 */
78struct atl1_ring_header {
79 void *desc; /* virtual address */
80 dma_addr_t dma; /* physical address*/
81 unsigned int size; /* length in bytes */
82};
83
84/*
85 * atl1_buffer is wrapper around a pointer to a socket buffer
86 * so a DMA handle can be stored along with the skb
87 */
88struct atl1_buffer {
89 struct sk_buff *skb; /* socket buffer */
90 u16 length; /* rx buffer length */
91 u16 alloced; /* 1 if skb allocated */
92 dma_addr_t dma;
93};
94
95/* transmit packet descriptor (tpd) ring */
96struct atl1_tpd_ring {
97 void *desc; /* descriptor ring virtual address */
98 dma_addr_t dma; /* descriptor ring physical address */
99 u16 size; /* descriptor ring length in bytes */
100 u16 count; /* number of descriptors in the ring */
101 u16 hw_idx; /* hardware index */
102 atomic_t next_to_clean;
103 atomic_t next_to_use;
104 struct atl1_buffer *buffer_info;
105};
106
107/* receive free descriptor (rfd) ring */
108struct atl1_rfd_ring {
109 void *desc; /* descriptor ring virtual address */
110 dma_addr_t dma; /* descriptor ring physical address */
111 u16 size; /* descriptor ring length in bytes */
112 u16 count; /* number of descriptors in the ring */
113 atomic_t next_to_use;
114 u16 next_to_clean;
115 struct atl1_buffer *buffer_info;
116};
117
118/* receive return descriptor (rrd) ring */
119struct atl1_rrd_ring {
120 void *desc; /* descriptor ring virtual address */
121 dma_addr_t dma; /* descriptor ring physical address */
122 unsigned int size; /* descriptor ring length in bytes */
123 u16 count; /* number of descriptors in the ring */
124 u16 next_to_use;
125 atomic_t next_to_clean;
126};
127
128/* coalescing message block (cmb) */
129struct atl1_cmb {
130 struct coals_msg_block *cmb;
131 dma_addr_t dma;
132};
133
134/* statistics message block (smb) */
135struct atl1_smb {
136 struct stats_msg_block *smb;
137 dma_addr_t dma;
138};
139
140/* Statistics counters */
141struct atl1_sft_stats {
142 u64 rx_packets;
143 u64 tx_packets;
144 u64 rx_bytes;
145 u64 tx_bytes;
146 u64 multicast;
147 u64 collisions;
148 u64 rx_errors;
149 u64 rx_length_errors;
150 u64 rx_crc_errors;
151 u64 rx_frame_errors;
152 u64 rx_fifo_errors;
153 u64 rx_missed_errors;
154 u64 tx_errors;
155 u64 tx_fifo_errors;
156 u64 tx_aborted_errors;
157 u64 tx_window_errors;
158 u64 tx_carrier_errors;
159 u64 tx_pause; /* num pause packets transmitted. */
160 u64 excecol; /* num tx packets w/ excessive collisions. */
161 u64 deffer; /* num tx packets deferred */
162 u64 scc; /* num packets subsequently transmitted
163 * successfully w/ single prior collision. */
164 u64 mcc; /* num packets subsequently transmitted
165 * successfully w/ multiple prior collisions. */
166 u64 latecol; /* num tx packets w/ late collisions. */
167 u64 tx_underun; /* num tx packets aborted due to transmit
168 * FIFO underrun, or TRD FIFO underrun */
169 u64 tx_trunc; /* num tx packets truncated due to size
170 * exceeding MTU, regardless whether truncated
171 * by the chip or not. (The name doesn't really
172 * reflect the meaning in this case.) */
173 u64 rx_pause; /* num Pause packets received. */
174 u64 rx_rrd_ov;
175 u64 rx_trunc;
176};
177
178/* hardware structure */
179struct atl1_hw {
180 u8 __iomem *hw_addr;
181 struct atl1_adapter *back;
182 enum atl1_dma_order dma_ord;
183 enum atl1_dma_rcb rcb_value;
184 enum atl1_dma_req_block dmar_block;
185 enum atl1_dma_req_block dmaw_block;
186 u8 preamble_len;
187 u8 max_retry; /* Retransmission maximum, after which the
188 * packet will be discarded */
189 u8 jam_ipg; /* IPG to start JAM for collision based flow
190 * control in half-duplex mode. In units of
191 * 8-bit time */
192 u8 ipgt; /* Desired back to back inter-packet gap.
193 * The default is 96-bit time */
194 u8 min_ifg; /* Minimum number of IFG to enforce in between
195 * receive frames. Frame gap below such IFP
196 * is dropped */
197 u8 ipgr1; /* 64bit Carrier-Sense window */
198 u8 ipgr2; /* 96-bit IPG window */
199 u8 tpd_burst; /* Number of TPD to prefetch in cache-aligned
200 * burst. Each TPD is 16 bytes long */
201 u8 rfd_burst; /* Number of RFD to prefetch in cache-aligned
202 * burst. Each RFD is 12 bytes long */
203 u8 rfd_fetch_gap;
204 u8 rrd_burst; /* Threshold number of RRDs that can be retired
205 * in a burst. Each RRD is 16 bytes long */
206 u8 tpd_fetch_th;
207 u8 tpd_fetch_gap;
208 u16 tx_jumbo_task_th;
209 u16 txf_burst; /* Number of data bytes to read in a cache-
210 * aligned burst. Each SRAM entry is 8 bytes */
211 u16 rx_jumbo_th; /* Jumbo packet size for non-VLAN packet. VLAN
212 * packets should add 4 bytes */
213 u16 rx_jumbo_lkah;
214 u16 rrd_ret_timer; /* RRD retirement timer. Decrement by 1 after
215 * every 512ns passes. */
216 u16 lcol; /* Collision Window */
217
218 u16 cmb_tpd;
219 u16 cmb_rrd;
220 u16 cmb_rx_timer;
221 u16 cmb_tx_timer;
222 u32 smb_timer;
223 u16 media_type;
224 u16 autoneg_advertised;
225
226 u16 mii_autoneg_adv_reg;
227 u16 mii_1000t_ctrl_reg;
228
229 u32 max_frame_size;
230 u32 min_frame_size;
231
232 u16 dev_rev;
233
234 /* spi flash */
235 u8 flash_vendor;
236
237 u8 mac_addr[ETH_ALEN];
238 u8 perm_mac_addr[ETH_ALEN];
239
240 bool phy_configured;
241};
242
243struct atl1_adapter {
244 struct net_device *netdev;
245 struct pci_dev *pdev;
246 struct net_device_stats net_stats;
247 struct atl1_sft_stats soft_stats;
248 struct vlan_group *vlgrp;
249 u32 rx_buffer_len;
250 u32 wol;
251 u16 link_speed;
252 u16 link_duplex;
253 spinlock_t lock;
254 struct work_struct tx_timeout_task;
255 struct work_struct link_chg_task;
256 struct work_struct pcie_dma_to_rst_task;
257 struct timer_list watchdog_timer;
258 struct timer_list phy_config_timer;
259 bool phy_timer_pending;
260
261 /* all descriptor rings' memory */
262 struct atl1_ring_header ring_header;
263
264 /* TX */
265 struct atl1_tpd_ring tpd_ring;
266 spinlock_t mb_lock;
267
268 /* RX */
269 struct atl1_rfd_ring rfd_ring;
270 struct atl1_rrd_ring rrd_ring;
271 u64 hw_csum_err;
272 u64 hw_csum_good;
273
274 u16 imt; /* interrupt moderator timer (2us resolution */
275 u16 ict; /* interrupt clear timer (2us resolution */
276 struct mii_if_info mii; /* MII interface info */
277
278 /* structs defined in atl1_hw.h */
279 u32 bd_number; /* board number */
280 bool pci_using_64;
281 struct atl1_hw hw;
282 struct atl1_smb smb;
283 struct atl1_cmb cmb;
284};
285
286#endif /* _ATL1_H_ */
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-24 13:14:36 -0500