tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * Copyright (C) 2005 - 2009 ServerEngines
3 * All rights reserved.
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License version 2
7 * as published by the Free Software Foundation. The full GNU General
8 * Public License is included in this distribution in the file called COPYING.
9 *
10 * Contact Information:
11 * linux-drivers@serverengines.com
12 *
13 * ServerEngines
14 * 209 N. Fair Oaks Ave
15 * Sunnyvale, CA 94085
16 */
17
18#include "be.h"
19#include <linux/ethtool.h>
20
21struct be_ethtool_stat {
22 char desc[ETH_GSTRING_LEN];
23 int type;
24 int size;
25 int offset;
26};
27
28enum {NETSTAT, PORTSTAT, MISCSTAT, DRVSTAT, ERXSTAT};
29#define FIELDINFO(_struct, field) FIELD_SIZEOF(_struct, field), \
30 offsetof(_struct, field)
31#define NETSTAT_INFO(field) #field, NETSTAT,\
32 FIELDINFO(struct net_device_stats,\
33 field)
34#define DRVSTAT_INFO(field) #field, DRVSTAT,\
35 FIELDINFO(struct be_drvr_stats, field)
36#define MISCSTAT_INFO(field) #field, MISCSTAT,\
37 FIELDINFO(struct be_rxf_stats, field)
38#define PORTSTAT_INFO(field) #field, PORTSTAT,\
39 FIELDINFO(struct be_port_rxf_stats, \
40 field)
41#define ERXSTAT_INFO(field) #field, ERXSTAT,\
42 FIELDINFO(struct be_erx_stats, field)
43
44static const struct be_ethtool_stat et_stats[] = {
45 {NETSTAT_INFO(rx_packets)},
46 {NETSTAT_INFO(tx_packets)},
47 {NETSTAT_INFO(rx_bytes)},
48 {NETSTAT_INFO(tx_bytes)},
49 {NETSTAT_INFO(rx_errors)},
50 {NETSTAT_INFO(tx_errors)},
51 {NETSTAT_INFO(rx_dropped)},
52 {NETSTAT_INFO(tx_dropped)},
53 {DRVSTAT_INFO(be_tx_reqs)},
54 {DRVSTAT_INFO(be_tx_stops)},
55 {DRVSTAT_INFO(be_fwd_reqs)},
56 {DRVSTAT_INFO(be_tx_wrbs)},
57 {DRVSTAT_INFO(be_polls)},
58 {DRVSTAT_INFO(be_tx_events)},
59 {DRVSTAT_INFO(be_rx_events)},
60 {DRVSTAT_INFO(be_tx_compl)},
61 {DRVSTAT_INFO(be_rx_compl)},
62 {DRVSTAT_INFO(be_ethrx_post_fail)},
63 {DRVSTAT_INFO(be_802_3_dropped_frames)},
64 {DRVSTAT_INFO(be_802_3_malformed_frames)},
65 {DRVSTAT_INFO(be_tx_rate)},
66 {DRVSTAT_INFO(be_rx_rate)},
67 {PORTSTAT_INFO(rx_unicast_frames)},
68 {PORTSTAT_INFO(rx_multicast_frames)},
69 {PORTSTAT_INFO(rx_broadcast_frames)},
70 {PORTSTAT_INFO(rx_crc_errors)},
71 {PORTSTAT_INFO(rx_alignment_symbol_errors)},
72 {PORTSTAT_INFO(rx_pause_frames)},
73 {PORTSTAT_INFO(rx_control_frames)},
74 {PORTSTAT_INFO(rx_in_range_errors)},
75 {PORTSTAT_INFO(rx_out_range_errors)},
76 {PORTSTAT_INFO(rx_frame_too_long)},
77 {PORTSTAT_INFO(rx_address_match_errors)},
78 {PORTSTAT_INFO(rx_vlan_mismatch)},
79 {PORTSTAT_INFO(rx_dropped_too_small)},
80 {PORTSTAT_INFO(rx_dropped_too_short)},
81 {PORTSTAT_INFO(rx_dropped_header_too_small)},
82 {PORTSTAT_INFO(rx_dropped_tcp_length)},
83 {PORTSTAT_INFO(rx_dropped_runt)},
84 {PORTSTAT_INFO(rx_fifo_overflow)},
85 {PORTSTAT_INFO(rx_input_fifo_overflow)},
86 {PORTSTAT_INFO(rx_ip_checksum_errs)},
87 {PORTSTAT_INFO(rx_tcp_checksum_errs)},
88 {PORTSTAT_INFO(rx_udp_checksum_errs)},
89 {PORTSTAT_INFO(rx_non_rss_packets)},
90 {PORTSTAT_INFO(rx_ipv4_packets)},
91 {PORTSTAT_INFO(rx_ipv6_packets)},
92 {PORTSTAT_INFO(tx_unicastframes)},
93 {PORTSTAT_INFO(tx_multicastframes)},
94 {PORTSTAT_INFO(tx_broadcastframes)},
95 {PORTSTAT_INFO(tx_pauseframes)},
96 {PORTSTAT_INFO(tx_controlframes)},
97 {MISCSTAT_INFO(rx_drops_no_pbuf)},
98 {MISCSTAT_INFO(rx_drops_no_txpb)},
99 {MISCSTAT_INFO(rx_drops_no_erx_descr)},
100 {MISCSTAT_INFO(rx_drops_no_tpre_descr)},
101 {MISCSTAT_INFO(rx_drops_too_many_frags)},
102 {MISCSTAT_INFO(rx_drops_invalid_ring)},
103 {MISCSTAT_INFO(forwarded_packets)},
104 {MISCSTAT_INFO(rx_drops_mtu)},
105 {ERXSTAT_INFO(rx_drops_no_fragments)},
106};
107#define ETHTOOL_STATS_NUM ARRAY_SIZE(et_stats)
108
109static void
110be_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo)
111{
112 struct be_adapter *adapter = netdev_priv(netdev);
113
114 strcpy(drvinfo->driver, DRV_NAME);
115 strcpy(drvinfo->version, DRV_VER);
116 strncpy(drvinfo->fw_version, adapter->fw_ver, FW_VER_LEN);
117 strcpy(drvinfo->bus_info, pci_name(adapter->pdev));
118 drvinfo->testinfo_len = 0;
119 drvinfo->regdump_len = 0;
120 drvinfo->eedump_len = 0;
121}
122
123static int
124be_get_coalesce(struct net_device *netdev, struct ethtool_coalesce *coalesce)
125{
126 struct be_adapter *adapter = netdev_priv(netdev);
127 struct be_eq_obj *rx_eq = &adapter->rx_eq;
128 struct be_eq_obj *tx_eq = &adapter->tx_eq;
129
130 coalesce->rx_max_coalesced_frames = adapter->max_rx_coal;
131
132 coalesce->rx_coalesce_usecs = rx_eq->cur_eqd;
133 coalesce->rx_coalesce_usecs_high = rx_eq->max_eqd;
134 coalesce->rx_coalesce_usecs_low = rx_eq->min_eqd;
135
136 coalesce->tx_coalesce_usecs = tx_eq->cur_eqd;
137 coalesce->tx_coalesce_usecs_high = tx_eq->max_eqd;
138 coalesce->tx_coalesce_usecs_low = tx_eq->min_eqd;
139
140 coalesce->use_adaptive_rx_coalesce = rx_eq->enable_aic;
141 coalesce->use_adaptive_tx_coalesce = tx_eq->enable_aic;
142
143 return 0;
144}
145
146/*
147 * This routine is used to set interrup coalescing delay *as well as*
148 * the number of pkts to coalesce for LRO.
149 */
150static int
151be_set_coalesce(struct net_device *netdev, struct ethtool_coalesce *coalesce)
152{
153 struct be_adapter *adapter = netdev_priv(netdev);
154 struct be_ctrl_info *ctrl = &adapter->ctrl;
155 struct be_eq_obj *rx_eq = &adapter->rx_eq;
156 struct be_eq_obj *tx_eq = &adapter->tx_eq;
157 u32 tx_max, tx_min, tx_cur;
158 u32 rx_max, rx_min, rx_cur;
159 int status = 0;
160
161 if (coalesce->use_adaptive_tx_coalesce == 1)
162 return -EINVAL;
163
164 adapter->max_rx_coal = coalesce->rx_max_coalesced_frames;
165 if (adapter->max_rx_coal > BE_MAX_FRAGS_PER_FRAME)
166 adapter->max_rx_coal = BE_MAX_FRAGS_PER_FRAME;
167
168 /* if AIC is being turned on now, start with an EQD of 0 */
169 if (rx_eq->enable_aic == 0 &&
170 coalesce->use_adaptive_rx_coalesce == 1) {
171 rx_eq->cur_eqd = 0;
172 }
173 rx_eq->enable_aic = coalesce->use_adaptive_rx_coalesce;
174
175 rx_max = coalesce->rx_coalesce_usecs_high;
176 rx_min = coalesce->rx_coalesce_usecs_low;
177 rx_cur = coalesce->rx_coalesce_usecs;
178
179 tx_max = coalesce->tx_coalesce_usecs_high;
180 tx_min = coalesce->tx_coalesce_usecs_low;
181 tx_cur = coalesce->tx_coalesce_usecs;
182
183 if (tx_cur > BE_MAX_EQD)
184 tx_cur = BE_MAX_EQD;
185 if (tx_eq->cur_eqd != tx_cur) {
186 status = be_cmd_modify_eqd(ctrl, tx_eq->q.id, tx_cur);
187 if (!status)
188 tx_eq->cur_eqd = tx_cur;
189 }
190
191 if (rx_eq->enable_aic) {
192 if (rx_max > BE_MAX_EQD)
193 rx_max = BE_MAX_EQD;
194 if (rx_min > rx_max)
195 rx_min = rx_max;
196 rx_eq->max_eqd = rx_max;
197 rx_eq->min_eqd = rx_min;
198 if (rx_eq->cur_eqd > rx_max)
199 rx_eq->cur_eqd = rx_max;
200 if (rx_eq->cur_eqd < rx_min)
201 rx_eq->cur_eqd = rx_min;
202 } else {
203 if (rx_cur > BE_MAX_EQD)
204 rx_cur = BE_MAX_EQD;
205 if (rx_eq->cur_eqd != rx_cur) {
206 status = be_cmd_modify_eqd(ctrl, rx_eq->q.id, rx_cur);
207 if (!status)
208 rx_eq->cur_eqd = rx_cur;
209 }
210 }
211 return 0;
212}
213
214static u32 be_get_rx_csum(struct net_device *netdev)
215{
216 struct be_adapter *adapter = netdev_priv(netdev);
217
218 return adapter->rx_csum;
219}
220
221static int be_set_rx_csum(struct net_device *netdev, uint32_t data)
222{
223 struct be_adapter *adapter = netdev_priv(netdev);
224
225 if (data)
226 adapter->rx_csum = true;
227 else
228 adapter->rx_csum = false;
229
230 return 0;
231}
232
233static void
234be_get_ethtool_stats(struct net_device *netdev,
235 struct ethtool_stats *stats, uint64_t *data)
236{
237 struct be_adapter *adapter = netdev_priv(netdev);
238 struct be_drvr_stats *drvr_stats = &adapter->stats.drvr_stats;
239 struct be_hw_stats *hw_stats = hw_stats_from_cmd(adapter->stats.cmd.va);
240 struct be_rxf_stats *rxf_stats = &hw_stats->rxf;
241 struct be_port_rxf_stats *port_stats =
242 &rxf_stats->port[adapter->port_num];
243 struct net_device_stats *net_stats = &adapter->stats.net_stats;
244 struct be_erx_stats *erx_stats = &hw_stats->erx;
245 void *p = NULL;
246 int i;
247
248 for (i = 0; i < ETHTOOL_STATS_NUM; i++) {
249 switch (et_stats[i].type) {
250 case NETSTAT:
251 p = net_stats;
252 break;
253 case DRVSTAT:
254 p = drvr_stats;
255 break;
256 case PORTSTAT:
257 p = port_stats;
258 break;
259 case MISCSTAT:
260 p = rxf_stats;
261 break;
262 case ERXSTAT: /* Currently only one ERX stat is provided */
263 p = (u32 *)erx_stats + adapter->rx_obj.q.id;
264 break;
265 }
266
267 p = (u8 *)p + et_stats[i].offset;
268 data[i] = (et_stats[i].size == sizeof(u64)) ?
269 *(u64 *)p: *(u32 *)p;
270 }
271
272 return;
273}
274
275static void
276be_get_stat_strings(struct net_device *netdev, uint32_t stringset,
277 uint8_t *data)
278{
279 int i;
280 switch (stringset) {
281 case ETH_SS_STATS:
282 for (i = 0; i < ETHTOOL_STATS_NUM; i++) {
283 memcpy(data, et_stats[i].desc, ETH_GSTRING_LEN);
284 data += ETH_GSTRING_LEN;
285 }
286 break;
287 }
288}
289
290static int be_get_stats_count(struct net_device *netdev)
291{
292 return ETHTOOL_STATS_NUM;
293}
294
295static int be_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
296{
297 ecmd->speed = SPEED_10000;
298 ecmd->duplex = DUPLEX_FULL;
299 ecmd->autoneg = AUTONEG_DISABLE;
300 return 0;
301}
302
303static void
304be_get_ringparam(struct net_device *netdev, struct ethtool_ringparam *ring)
305{
306 struct be_adapter *adapter = netdev_priv(netdev);
307
308 ring->rx_max_pending = adapter->rx_obj.q.len;
309 ring->tx_max_pending = adapter->tx_obj.q.len;
310
311 ring->rx_pending = atomic_read(&adapter->rx_obj.q.used);
312 ring->tx_pending = atomic_read(&adapter->tx_obj.q.used);
313}
314
315static void
316be_get_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *ecmd)
317{
318 struct be_adapter *adapter = netdev_priv(netdev);
319
320 be_cmd_get_flow_control(&adapter->ctrl, &ecmd->tx_pause,
321 &ecmd->rx_pause);
322 ecmd->autoneg = 0;
323}
324
325static int
326be_set_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *ecmd)
327{
328 struct be_adapter *adapter = netdev_priv(netdev);
329 int status;
330
331 if (ecmd->autoneg != 0)
332 return -EINVAL;
333
334 status = be_cmd_set_flow_control(&adapter->ctrl, ecmd->tx_pause,
335 ecmd->rx_pause);
336 if (!status)
337 dev_warn(&adapter->pdev->dev, "Pause param set failed.\n");
338
339 return status;
340}
341
342struct ethtool_ops be_ethtool_ops = {
343 .get_settings = be_get_settings,
344 .get_drvinfo = be_get_drvinfo,
345 .get_link = ethtool_op_get_link,
346 .get_coalesce = be_get_coalesce,
347 .set_coalesce = be_set_coalesce,
348 .get_ringparam = be_get_ringparam,
349 .get_pauseparam = be_get_pauseparam,
350 .set_pauseparam = be_set_pauseparam,
351 .get_rx_csum = be_get_rx_csum,
352 .set_rx_csum = be_set_rx_csum,
353 .get_tx_csum = ethtool_op_get_tx_csum,
354 .set_tx_csum = ethtool_op_set_tx_csum,
355 .get_sg = ethtool_op_get_sg,
356 .set_sg = ethtool_op_set_sg,
357 .get_tso = ethtool_op_get_tso,
358 .set_tso = ethtool_op_set_tso,
359 .get_strings = be_get_stat_strings,
360 .get_stats_count = be_get_stats_count,
361 .get_ethtool_stats = be_get_ethtool_stats,
362};