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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 | ||
21 | struct be_ethtool_stat { | |
22 | char desc[ETH_GSTRING_LEN]; | |
23 | int type; | |
24 | int size; | |
25 | int offset; | |
26 | }; | |
27 | ||
28 | enum {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 | ||
44 | static 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 | ||
109 | static void | |
110 | be_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 | ||
123 | static int | |
124 | be_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 | */ | |
150 | static int | |
151 | be_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; | |
bd46cb6c AK |
165 | if (adapter->max_rx_coal > BE_MAX_FRAGS_PER_FRAME) |
166 | adapter->max_rx_coal = BE_MAX_FRAGS_PER_FRAME; | |
6b7c5b94 SP |
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 | ||
214 | static 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 | ||
221 | static 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 | ||
233 | static void | |
234 | be_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 | ||
275 | static void | |
276 | be_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 | ||
290 | static int be_get_stats_count(struct net_device *netdev) | |
291 | { | |
292 | return ETHTOOL_STATS_NUM; | |
293 | } | |
294 | ||
295 | static 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 | ||
303 | static void | |
304 | be_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 | ||
315 | static void | |
316 | be_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); | |
03a980d1 | 322 | ecmd->autoneg = 0; |
6b7c5b94 SP |
323 | } |
324 | ||
325 | static int | |
326 | be_set_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *ecmd) | |
327 | { | |
328 | struct be_adapter *adapter = netdev_priv(netdev); | |
329 | int status; | |
330 | ||
03a980d1 | 331 | if (ecmd->autoneg != 0) |
6b7c5b94 SP |
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 | ||
342 | struct 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 | }; |