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net/mlx4_en: Use generic etherdevice.h functions.
[deliverable/linux.git] / drivers / net / ethernet / mellanox / mlx4 / en_ethtool.c
1 /*
2 * Copyright (c) 2007 Mellanox Technologies. All rights reserved.
3 *
4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
9 *
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
12 * conditions are met:
13 *
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
16 * disclaimer.
17 *
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and/or other materials
21 * provided with the distribution.
22 *
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30 * SOFTWARE.
31 *
32 */
33
34 #include <linux/kernel.h>
35 #include <linux/ethtool.h>
36 #include <linux/netdevice.h>
37 #include <linux/mlx4/driver.h>
38
39 #include "mlx4_en.h"
40 #include "en_port.h"
41
42 #define EN_ETHTOOL_QP_ATTACH (1ull << 63)
43 #define EN_ETHTOOL_SHORT_MASK cpu_to_be16(0xffff)
44 #define EN_ETHTOOL_WORD_MASK cpu_to_be32(0xffffffff)
45
46 static int mlx4_en_moderation_update(struct mlx4_en_priv *priv)
47 {
48 int i;
49 int err = 0;
50
51 for (i = 0; i < priv->tx_ring_num; i++) {
52 priv->tx_cq[i].moder_cnt = priv->tx_frames;
53 priv->tx_cq[i].moder_time = priv->tx_usecs;
54 err = mlx4_en_set_cq_moder(priv, &priv->tx_cq[i]);
55 if (err)
56 return err;
57 }
58
59 if (priv->adaptive_rx_coal)
60 return 0;
61
62 for (i = 0; i < priv->rx_ring_num; i++) {
63 priv->rx_cq[i].moder_cnt = priv->rx_frames;
64 priv->rx_cq[i].moder_time = priv->rx_usecs;
65 priv->last_moder_time[i] = MLX4_EN_AUTO_CONF;
66 err = mlx4_en_set_cq_moder(priv, &priv->rx_cq[i]);
67 if (err)
68 return err;
69 }
70
71 return err;
72 }
73
74 static void
75 mlx4_en_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *drvinfo)
76 {
77 struct mlx4_en_priv *priv = netdev_priv(dev);
78 struct mlx4_en_dev *mdev = priv->mdev;
79
80 strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver));
81 strlcpy(drvinfo->version, DRV_VERSION " (" DRV_RELDATE ")",
82 sizeof(drvinfo->version));
83 snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
84 "%d.%d.%d",
85 (u16) (mdev->dev->caps.fw_ver >> 32),
86 (u16) ((mdev->dev->caps.fw_ver >> 16) & 0xffff),
87 (u16) (mdev->dev->caps.fw_ver & 0xffff));
88 strlcpy(drvinfo->bus_info, pci_name(mdev->dev->pdev),
89 sizeof(drvinfo->bus_info));
90 drvinfo->n_stats = 0;
91 drvinfo->regdump_len = 0;
92 drvinfo->eedump_len = 0;
93 }
94
95 static const char main_strings[][ETH_GSTRING_LEN] = {
96 "rx_packets", "tx_packets", "rx_bytes", "tx_bytes", "rx_errors",
97 "tx_errors", "rx_dropped", "tx_dropped", "multicast", "collisions",
98 "rx_length_errors", "rx_over_errors", "rx_crc_errors",
99 "rx_frame_errors", "rx_fifo_errors", "rx_missed_errors",
100 "tx_aborted_errors", "tx_carrier_errors", "tx_fifo_errors",
101 "tx_heartbeat_errors", "tx_window_errors",
102
103 /* port statistics */
104 "tso_packets",
105 "queue_stopped", "wake_queue", "tx_timeout", "rx_alloc_failed",
106 "rx_csum_good", "rx_csum_none", "tx_chksum_offload",
107
108 /* packet statistics */
109 "broadcast", "rx_prio_0", "rx_prio_1", "rx_prio_2", "rx_prio_3",
110 "rx_prio_4", "rx_prio_5", "rx_prio_6", "rx_prio_7", "tx_prio_0",
111 "tx_prio_1", "tx_prio_2", "tx_prio_3", "tx_prio_4", "tx_prio_5",
112 "tx_prio_6", "tx_prio_7",
113 };
114 #define NUM_MAIN_STATS 21
115 #define NUM_ALL_STATS (NUM_MAIN_STATS + NUM_PORT_STATS + NUM_PKT_STATS + NUM_PERF_STATS)
116
117 static const char mlx4_en_test_names[][ETH_GSTRING_LEN]= {
118 "Interrupt Test",
119 "Link Test",
120 "Speed Test",
121 "Register Test",
122 "Loopback Test",
123 };
124
125 static u32 mlx4_en_get_msglevel(struct net_device *dev)
126 {
127 return ((struct mlx4_en_priv *) netdev_priv(dev))->msg_enable;
128 }
129
130 static void mlx4_en_set_msglevel(struct net_device *dev, u32 val)
131 {
132 ((struct mlx4_en_priv *) netdev_priv(dev))->msg_enable = val;
133 }
134
135 static void mlx4_en_get_wol(struct net_device *netdev,
136 struct ethtool_wolinfo *wol)
137 {
138 struct mlx4_en_priv *priv = netdev_priv(netdev);
139 int err = 0;
140 u64 config = 0;
141 u64 mask;
142
143 if ((priv->port < 1) || (priv->port > 2)) {
144 en_err(priv, "Failed to get WoL information\n");
145 return;
146 }
147
148 mask = (priv->port == 1) ? MLX4_DEV_CAP_FLAG_WOL_PORT1 :
149 MLX4_DEV_CAP_FLAG_WOL_PORT2;
150
151 if (!(priv->mdev->dev->caps.flags & mask)) {
152 wol->supported = 0;
153 wol->wolopts = 0;
154 return;
155 }
156
157 err = mlx4_wol_read(priv->mdev->dev, &config, priv->port);
158 if (err) {
159 en_err(priv, "Failed to get WoL information\n");
160 return;
161 }
162
163 if (config & MLX4_EN_WOL_MAGIC)
164 wol->supported = WAKE_MAGIC;
165 else
166 wol->supported = 0;
167
168 if (config & MLX4_EN_WOL_ENABLED)
169 wol->wolopts = WAKE_MAGIC;
170 else
171 wol->wolopts = 0;
172 }
173
174 static int mlx4_en_set_wol(struct net_device *netdev,
175 struct ethtool_wolinfo *wol)
176 {
177 struct mlx4_en_priv *priv = netdev_priv(netdev);
178 u64 config = 0;
179 int err = 0;
180 u64 mask;
181
182 if ((priv->port < 1) || (priv->port > 2))
183 return -EOPNOTSUPP;
184
185 mask = (priv->port == 1) ? MLX4_DEV_CAP_FLAG_WOL_PORT1 :
186 MLX4_DEV_CAP_FLAG_WOL_PORT2;
187
188 if (!(priv->mdev->dev->caps.flags & mask))
189 return -EOPNOTSUPP;
190
191 if (wol->supported & ~WAKE_MAGIC)
192 return -EINVAL;
193
194 err = mlx4_wol_read(priv->mdev->dev, &config, priv->port);
195 if (err) {
196 en_err(priv, "Failed to get WoL info, unable to modify\n");
197 return err;
198 }
199
200 if (wol->wolopts & WAKE_MAGIC) {
201 config |= MLX4_EN_WOL_DO_MODIFY | MLX4_EN_WOL_ENABLED |
202 MLX4_EN_WOL_MAGIC;
203 } else {
204 config &= ~(MLX4_EN_WOL_ENABLED | MLX4_EN_WOL_MAGIC);
205 config |= MLX4_EN_WOL_DO_MODIFY;
206 }
207
208 err = mlx4_wol_write(priv->mdev->dev, config, priv->port);
209 if (err)
210 en_err(priv, "Failed to set WoL information\n");
211
212 return err;
213 }
214
215 static int mlx4_en_get_sset_count(struct net_device *dev, int sset)
216 {
217 struct mlx4_en_priv *priv = netdev_priv(dev);
218 int bit_count = hweight64(priv->stats_bitmap);
219
220 switch (sset) {
221 case ETH_SS_STATS:
222 return (priv->stats_bitmap ? bit_count : NUM_ALL_STATS) +
223 (priv->tx_ring_num + priv->rx_ring_num) * 2;
224 case ETH_SS_TEST:
225 return MLX4_EN_NUM_SELF_TEST - !(priv->mdev->dev->caps.flags
226 & MLX4_DEV_CAP_FLAG_UC_LOOPBACK) * 2;
227 default:
228 return -EOPNOTSUPP;
229 }
230 }
231
232 static void mlx4_en_get_ethtool_stats(struct net_device *dev,
233 struct ethtool_stats *stats, uint64_t *data)
234 {
235 struct mlx4_en_priv *priv = netdev_priv(dev);
236 int index = 0;
237 int i, j = 0;
238
239 spin_lock_bh(&priv->stats_lock);
240
241 if (!(priv->stats_bitmap)) {
242 for (i = 0; i < NUM_MAIN_STATS; i++)
243 data[index++] =
244 ((unsigned long *) &priv->stats)[i];
245 for (i = 0; i < NUM_PORT_STATS; i++)
246 data[index++] =
247 ((unsigned long *) &priv->port_stats)[i];
248 for (i = 0; i < NUM_PKT_STATS; i++)
249 data[index++] =
250 ((unsigned long *) &priv->pkstats)[i];
251 } else {
252 for (i = 0; i < NUM_MAIN_STATS; i++) {
253 if ((priv->stats_bitmap >> j) & 1)
254 data[index++] =
255 ((unsigned long *) &priv->stats)[i];
256 j++;
257 }
258 for (i = 0; i < NUM_PORT_STATS; i++) {
259 if ((priv->stats_bitmap >> j) & 1)
260 data[index++] =
261 ((unsigned long *) &priv->port_stats)[i];
262 j++;
263 }
264 }
265 for (i = 0; i < priv->tx_ring_num; i++) {
266 data[index++] = priv->tx_ring[i].packets;
267 data[index++] = priv->tx_ring[i].bytes;
268 }
269 for (i = 0; i < priv->rx_ring_num; i++) {
270 data[index++] = priv->rx_ring[i].packets;
271 data[index++] = priv->rx_ring[i].bytes;
272 }
273 spin_unlock_bh(&priv->stats_lock);
274
275 }
276
277 static void mlx4_en_self_test(struct net_device *dev,
278 struct ethtool_test *etest, u64 *buf)
279 {
280 mlx4_en_ex_selftest(dev, &etest->flags, buf);
281 }
282
283 static void mlx4_en_get_strings(struct net_device *dev,
284 uint32_t stringset, uint8_t *data)
285 {
286 struct mlx4_en_priv *priv = netdev_priv(dev);
287 int index = 0;
288 int i;
289
290 switch (stringset) {
291 case ETH_SS_TEST:
292 for (i = 0; i < MLX4_EN_NUM_SELF_TEST - 2; i++)
293 strcpy(data + i * ETH_GSTRING_LEN, mlx4_en_test_names[i]);
294 if (priv->mdev->dev->caps.flags & MLX4_DEV_CAP_FLAG_UC_LOOPBACK)
295 for (; i < MLX4_EN_NUM_SELF_TEST; i++)
296 strcpy(data + i * ETH_GSTRING_LEN, mlx4_en_test_names[i]);
297 break;
298
299 case ETH_SS_STATS:
300 /* Add main counters */
301 if (!priv->stats_bitmap) {
302 for (i = 0; i < NUM_MAIN_STATS; i++)
303 strcpy(data + (index++) * ETH_GSTRING_LEN,
304 main_strings[i]);
305 for (i = 0; i < NUM_PORT_STATS; i++)
306 strcpy(data + (index++) * ETH_GSTRING_LEN,
307 main_strings[i +
308 NUM_MAIN_STATS]);
309 for (i = 0; i < NUM_PKT_STATS; i++)
310 strcpy(data + (index++) * ETH_GSTRING_LEN,
311 main_strings[i +
312 NUM_MAIN_STATS +
313 NUM_PORT_STATS]);
314 } else
315 for (i = 0; i < NUM_MAIN_STATS + NUM_PORT_STATS; i++) {
316 if ((priv->stats_bitmap >> i) & 1) {
317 strcpy(data +
318 (index++) * ETH_GSTRING_LEN,
319 main_strings[i]);
320 }
321 if (!(priv->stats_bitmap >> i))
322 break;
323 }
324 for (i = 0; i < priv->tx_ring_num; i++) {
325 sprintf(data + (index++) * ETH_GSTRING_LEN,
326 "tx%d_packets", i);
327 sprintf(data + (index++) * ETH_GSTRING_LEN,
328 "tx%d_bytes", i);
329 }
330 for (i = 0; i < priv->rx_ring_num; i++) {
331 sprintf(data + (index++) * ETH_GSTRING_LEN,
332 "rx%d_packets", i);
333 sprintf(data + (index++) * ETH_GSTRING_LEN,
334 "rx%d_bytes", i);
335 }
336 break;
337 }
338 }
339
340 static int mlx4_en_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
341 {
342 struct mlx4_en_priv *priv = netdev_priv(dev);
343 int trans_type;
344
345 cmd->autoneg = AUTONEG_DISABLE;
346 cmd->supported = SUPPORTED_10000baseT_Full;
347 cmd->advertising = ADVERTISED_10000baseT_Full;
348
349 if (mlx4_en_QUERY_PORT(priv->mdev, priv->port))
350 return -ENOMEM;
351
352 trans_type = priv->port_state.transciver;
353 if (netif_carrier_ok(dev)) {
354 ethtool_cmd_speed_set(cmd, priv->port_state.link_speed);
355 cmd->duplex = DUPLEX_FULL;
356 } else {
357 ethtool_cmd_speed_set(cmd, -1);
358 cmd->duplex = -1;
359 }
360
361 if (trans_type > 0 && trans_type <= 0xC) {
362 cmd->port = PORT_FIBRE;
363 cmd->transceiver = XCVR_EXTERNAL;
364 cmd->supported |= SUPPORTED_FIBRE;
365 cmd->advertising |= ADVERTISED_FIBRE;
366 } else if (trans_type == 0x80 || trans_type == 0) {
367 cmd->port = PORT_TP;
368 cmd->transceiver = XCVR_INTERNAL;
369 cmd->supported |= SUPPORTED_TP;
370 cmd->advertising |= ADVERTISED_TP;
371 } else {
372 cmd->port = -1;
373 cmd->transceiver = -1;
374 }
375 return 0;
376 }
377
378 static int mlx4_en_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
379 {
380 if ((cmd->autoneg == AUTONEG_ENABLE) ||
381 (ethtool_cmd_speed(cmd) != SPEED_10000) ||
382 (cmd->duplex != DUPLEX_FULL))
383 return -EINVAL;
384
385 /* Nothing to change */
386 return 0;
387 }
388
389 static int mlx4_en_get_coalesce(struct net_device *dev,
390 struct ethtool_coalesce *coal)
391 {
392 struct mlx4_en_priv *priv = netdev_priv(dev);
393
394 coal->tx_coalesce_usecs = priv->tx_usecs;
395 coal->tx_max_coalesced_frames = priv->tx_frames;
396 coal->rx_coalesce_usecs = priv->rx_usecs;
397 coal->rx_max_coalesced_frames = priv->rx_frames;
398
399 coal->pkt_rate_low = priv->pkt_rate_low;
400 coal->rx_coalesce_usecs_low = priv->rx_usecs_low;
401 coal->pkt_rate_high = priv->pkt_rate_high;
402 coal->rx_coalesce_usecs_high = priv->rx_usecs_high;
403 coal->rate_sample_interval = priv->sample_interval;
404 coal->use_adaptive_rx_coalesce = priv->adaptive_rx_coal;
405 return 0;
406 }
407
408 static int mlx4_en_set_coalesce(struct net_device *dev,
409 struct ethtool_coalesce *coal)
410 {
411 struct mlx4_en_priv *priv = netdev_priv(dev);
412
413 priv->rx_frames = (coal->rx_max_coalesced_frames ==
414 MLX4_EN_AUTO_CONF) ?
415 MLX4_EN_RX_COAL_TARGET :
416 coal->rx_max_coalesced_frames;
417 priv->rx_usecs = (coal->rx_coalesce_usecs ==
418 MLX4_EN_AUTO_CONF) ?
419 MLX4_EN_RX_COAL_TIME :
420 coal->rx_coalesce_usecs;
421
422 /* Setting TX coalescing parameters */
423 if (coal->tx_coalesce_usecs != priv->tx_usecs ||
424 coal->tx_max_coalesced_frames != priv->tx_frames) {
425 priv->tx_usecs = coal->tx_coalesce_usecs;
426 priv->tx_frames = coal->tx_max_coalesced_frames;
427 }
428
429 /* Set adaptive coalescing params */
430 priv->pkt_rate_low = coal->pkt_rate_low;
431 priv->rx_usecs_low = coal->rx_coalesce_usecs_low;
432 priv->pkt_rate_high = coal->pkt_rate_high;
433 priv->rx_usecs_high = coal->rx_coalesce_usecs_high;
434 priv->sample_interval = coal->rate_sample_interval;
435 priv->adaptive_rx_coal = coal->use_adaptive_rx_coalesce;
436
437 return mlx4_en_moderation_update(priv);
438 }
439
440 static int mlx4_en_set_pauseparam(struct net_device *dev,
441 struct ethtool_pauseparam *pause)
442 {
443 struct mlx4_en_priv *priv = netdev_priv(dev);
444 struct mlx4_en_dev *mdev = priv->mdev;
445 int err;
446
447 priv->prof->tx_pause = pause->tx_pause != 0;
448 priv->prof->rx_pause = pause->rx_pause != 0;
449 err = mlx4_SET_PORT_general(mdev->dev, priv->port,
450 priv->rx_skb_size + ETH_FCS_LEN,
451 priv->prof->tx_pause,
452 priv->prof->tx_ppp,
453 priv->prof->rx_pause,
454 priv->prof->rx_ppp);
455 if (err)
456 en_err(priv, "Failed setting pause params\n");
457
458 return err;
459 }
460
461 static void mlx4_en_get_pauseparam(struct net_device *dev,
462 struct ethtool_pauseparam *pause)
463 {
464 struct mlx4_en_priv *priv = netdev_priv(dev);
465
466 pause->tx_pause = priv->prof->tx_pause;
467 pause->rx_pause = priv->prof->rx_pause;
468 }
469
470 static int mlx4_en_set_ringparam(struct net_device *dev,
471 struct ethtool_ringparam *param)
472 {
473 struct mlx4_en_priv *priv = netdev_priv(dev);
474 struct mlx4_en_dev *mdev = priv->mdev;
475 u32 rx_size, tx_size;
476 int port_up = 0;
477 int err = 0;
478
479 if (param->rx_jumbo_pending || param->rx_mini_pending)
480 return -EINVAL;
481
482 rx_size = roundup_pow_of_two(param->rx_pending);
483 rx_size = max_t(u32, rx_size, MLX4_EN_MIN_RX_SIZE);
484 rx_size = min_t(u32, rx_size, MLX4_EN_MAX_RX_SIZE);
485 tx_size = roundup_pow_of_two(param->tx_pending);
486 tx_size = max_t(u32, tx_size, MLX4_EN_MIN_TX_SIZE);
487 tx_size = min_t(u32, tx_size, MLX4_EN_MAX_TX_SIZE);
488
489 if (rx_size == (priv->port_up ? priv->rx_ring[0].actual_size :
490 priv->rx_ring[0].size) &&
491 tx_size == priv->tx_ring[0].size)
492 return 0;
493
494 mutex_lock(&mdev->state_lock);
495 if (priv->port_up) {
496 port_up = 1;
497 mlx4_en_stop_port(dev);
498 }
499
500 mlx4_en_free_resources(priv);
501
502 priv->prof->tx_ring_size = tx_size;
503 priv->prof->rx_ring_size = rx_size;
504
505 err = mlx4_en_alloc_resources(priv);
506 if (err) {
507 en_err(priv, "Failed reallocating port resources\n");
508 goto out;
509 }
510 if (port_up) {
511 err = mlx4_en_start_port(dev);
512 if (err)
513 en_err(priv, "Failed starting port\n");
514 }
515
516 err = mlx4_en_moderation_update(priv);
517
518 out:
519 mutex_unlock(&mdev->state_lock);
520 return err;
521 }
522
523 static void mlx4_en_get_ringparam(struct net_device *dev,
524 struct ethtool_ringparam *param)
525 {
526 struct mlx4_en_priv *priv = netdev_priv(dev);
527
528 memset(param, 0, sizeof(*param));
529 param->rx_max_pending = MLX4_EN_MAX_RX_SIZE;
530 param->tx_max_pending = MLX4_EN_MAX_TX_SIZE;
531 param->rx_pending = priv->port_up ?
532 priv->rx_ring[0].actual_size : priv->rx_ring[0].size;
533 param->tx_pending = priv->tx_ring[0].size;
534 }
535
536 static u32 mlx4_en_get_rxfh_indir_size(struct net_device *dev)
537 {
538 struct mlx4_en_priv *priv = netdev_priv(dev);
539
540 return priv->rx_ring_num;
541 }
542
543 static int mlx4_en_get_rxfh_indir(struct net_device *dev, u32 *ring_index)
544 {
545 struct mlx4_en_priv *priv = netdev_priv(dev);
546 struct mlx4_en_rss_map *rss_map = &priv->rss_map;
547 int rss_rings;
548 size_t n = priv->rx_ring_num;
549 int err = 0;
550
551 rss_rings = priv->prof->rss_rings ?: priv->rx_ring_num;
552
553 while (n--) {
554 ring_index[n] = rss_map->qps[n % rss_rings].qpn -
555 rss_map->base_qpn;
556 }
557
558 return err;
559 }
560
561 static int mlx4_en_set_rxfh_indir(struct net_device *dev,
562 const u32 *ring_index)
563 {
564 struct mlx4_en_priv *priv = netdev_priv(dev);
565 struct mlx4_en_dev *mdev = priv->mdev;
566 int port_up = 0;
567 int err = 0;
568 int i;
569 int rss_rings = 0;
570
571 /* Calculate RSS table size and make sure flows are spread evenly
572 * between rings
573 */
574 for (i = 0; i < priv->rx_ring_num; i++) {
575 if (i > 0 && !ring_index[i] && !rss_rings)
576 rss_rings = i;
577
578 if (ring_index[i] != (i % (rss_rings ?: priv->rx_ring_num)))
579 return -EINVAL;
580 }
581
582 if (!rss_rings)
583 rss_rings = priv->rx_ring_num;
584
585 /* RSS table size must be an order of 2 */
586 if (!is_power_of_2(rss_rings))
587 return -EINVAL;
588
589 mutex_lock(&mdev->state_lock);
590 if (priv->port_up) {
591 port_up = 1;
592 mlx4_en_stop_port(dev);
593 }
594
595 priv->prof->rss_rings = rss_rings;
596
597 if (port_up) {
598 err = mlx4_en_start_port(dev);
599 if (err)
600 en_err(priv, "Failed starting port\n");
601 }
602
603 mutex_unlock(&mdev->state_lock);
604 return err;
605 }
606
607 #define all_zeros_or_all_ones(field) \
608 ((field) == 0 || (field) == (__force typeof(field))-1)
609
610 static int mlx4_en_validate_flow(struct net_device *dev,
611 struct ethtool_rxnfc *cmd)
612 {
613 struct ethtool_usrip4_spec *l3_mask;
614 struct ethtool_tcpip4_spec *l4_mask;
615 struct ethhdr *eth_mask;
616
617 if (cmd->fs.location >= MAX_NUM_OF_FS_RULES)
618 return -EINVAL;
619
620 switch (cmd->fs.flow_type & ~FLOW_EXT) {
621 case TCP_V4_FLOW:
622 case UDP_V4_FLOW:
623 if (cmd->fs.m_u.tcp_ip4_spec.tos)
624 return -EINVAL;
625 l4_mask = &cmd->fs.m_u.tcp_ip4_spec;
626 /* don't allow mask which isn't all 0 or 1 */
627 if (!all_zeros_or_all_ones(l4_mask->ip4src) ||
628 !all_zeros_or_all_ones(l4_mask->ip4dst) ||
629 !all_zeros_or_all_ones(l4_mask->psrc) ||
630 !all_zeros_or_all_ones(l4_mask->pdst))
631 return -EINVAL;
632 break;
633 case IP_USER_FLOW:
634 l3_mask = &cmd->fs.m_u.usr_ip4_spec;
635 if (l3_mask->l4_4_bytes || l3_mask->tos || l3_mask->proto ||
636 cmd->fs.h_u.usr_ip4_spec.ip_ver != ETH_RX_NFC_IP4 ||
637 (!l3_mask->ip4src && !l3_mask->ip4dst) ||
638 !all_zeros_or_all_ones(l3_mask->ip4src) ||
639 !all_zeros_or_all_ones(l3_mask->ip4dst))
640 return -EINVAL;
641 break;
642 case ETHER_FLOW:
643 eth_mask = &cmd->fs.m_u.ether_spec;
644 /* source mac mask must not be set */
645 if (!is_zero_ether_addr(eth_mask->h_source))
646 return -EINVAL;
647
648 /* dest mac mask must be ff:ff:ff:ff:ff:ff */
649 if (!is_broadcast_ether_addr(eth_mask->h_dest))
650 return -EINVAL;
651
652 if (!all_zeros_or_all_ones(eth_mask->h_proto))
653 return -EINVAL;
654 break;
655 default:
656 return -EINVAL;
657 }
658
659 if ((cmd->fs.flow_type & FLOW_EXT)) {
660 if (cmd->fs.m_ext.vlan_etype ||
661 !(cmd->fs.m_ext.vlan_tci == 0 ||
662 cmd->fs.m_ext.vlan_tci == cpu_to_be16(0xfff)))
663 return -EINVAL;
664 }
665
666 return 0;
667 }
668
669 static int add_ip_rule(struct mlx4_en_priv *priv,
670 struct ethtool_rxnfc *cmd,
671 struct list_head *list_h)
672 {
673 struct mlx4_spec_list *spec_l3;
674 struct ethtool_usrip4_spec *l3_mask = &cmd->fs.m_u.usr_ip4_spec;
675
676 spec_l3 = kzalloc(sizeof *spec_l3, GFP_KERNEL);
677 if (!spec_l3) {
678 en_err(priv, "Fail to alloc ethtool rule.\n");
679 return -ENOMEM;
680 }
681
682 spec_l3->id = MLX4_NET_TRANS_RULE_ID_IPV4;
683 spec_l3->ipv4.src_ip = cmd->fs.h_u.usr_ip4_spec.ip4src;
684 if (l3_mask->ip4src)
685 spec_l3->ipv4.src_ip_msk = EN_ETHTOOL_WORD_MASK;
686 spec_l3->ipv4.dst_ip = cmd->fs.h_u.usr_ip4_spec.ip4dst;
687 if (l3_mask->ip4dst)
688 spec_l3->ipv4.dst_ip_msk = EN_ETHTOOL_WORD_MASK;
689 list_add_tail(&spec_l3->list, list_h);
690
691 return 0;
692 }
693
694 static int add_tcp_udp_rule(struct mlx4_en_priv *priv,
695 struct ethtool_rxnfc *cmd,
696 struct list_head *list_h, int proto)
697 {
698 struct mlx4_spec_list *spec_l3;
699 struct mlx4_spec_list *spec_l4;
700 struct ethtool_tcpip4_spec *l4_mask = &cmd->fs.m_u.tcp_ip4_spec;
701
702 spec_l3 = kzalloc(sizeof *spec_l3, GFP_KERNEL);
703 spec_l4 = kzalloc(sizeof *spec_l4, GFP_KERNEL);
704 if (!spec_l4 || !spec_l3) {
705 en_err(priv, "Fail to alloc ethtool rule.\n");
706 kfree(spec_l3);
707 kfree(spec_l4);
708 return -ENOMEM;
709 }
710
711 spec_l3->id = MLX4_NET_TRANS_RULE_ID_IPV4;
712
713 if (proto == TCP_V4_FLOW) {
714 spec_l4->id = MLX4_NET_TRANS_RULE_ID_TCP;
715 spec_l3->ipv4.src_ip = cmd->fs.h_u.tcp_ip4_spec.ip4src;
716 spec_l3->ipv4.dst_ip = cmd->fs.h_u.tcp_ip4_spec.ip4dst;
717 spec_l4->tcp_udp.src_port = cmd->fs.h_u.tcp_ip4_spec.psrc;
718 spec_l4->tcp_udp.dst_port = cmd->fs.h_u.tcp_ip4_spec.pdst;
719 } else {
720 spec_l4->id = MLX4_NET_TRANS_RULE_ID_UDP;
721 spec_l3->ipv4.src_ip = cmd->fs.h_u.udp_ip4_spec.ip4src;
722 spec_l3->ipv4.dst_ip = cmd->fs.h_u.udp_ip4_spec.ip4dst;
723 spec_l4->tcp_udp.src_port = cmd->fs.h_u.udp_ip4_spec.psrc;
724 spec_l4->tcp_udp.dst_port = cmd->fs.h_u.udp_ip4_spec.pdst;
725 }
726
727 if (l4_mask->ip4src)
728 spec_l3->ipv4.src_ip_msk = EN_ETHTOOL_WORD_MASK;
729 if (l4_mask->ip4dst)
730 spec_l3->ipv4.dst_ip_msk = EN_ETHTOOL_WORD_MASK;
731
732 if (l4_mask->psrc)
733 spec_l4->tcp_udp.src_port_msk = EN_ETHTOOL_SHORT_MASK;
734 if (l4_mask->pdst)
735 spec_l4->tcp_udp.dst_port_msk = EN_ETHTOOL_SHORT_MASK;
736
737 list_add_tail(&spec_l3->list, list_h);
738 list_add_tail(&spec_l4->list, list_h);
739
740 return 0;
741 }
742
743 static int mlx4_en_ethtool_to_net_trans_rule(struct net_device *dev,
744 struct ethtool_rxnfc *cmd,
745 struct list_head *rule_list_h)
746 {
747 int err;
748 u64 mac;
749 __be64 be_mac;
750 struct ethhdr *eth_spec;
751 struct mlx4_en_priv *priv = netdev_priv(dev);
752 struct mlx4_spec_list *spec_l2;
753 __be64 mac_msk = cpu_to_be64(MLX4_MAC_MASK << 16);
754
755 err = mlx4_en_validate_flow(dev, cmd);
756 if (err)
757 return err;
758
759 spec_l2 = kzalloc(sizeof *spec_l2, GFP_KERNEL);
760 if (!spec_l2)
761 return -ENOMEM;
762
763 mac = priv->mac & MLX4_MAC_MASK;
764 be_mac = cpu_to_be64(mac << 16);
765
766 spec_l2->id = MLX4_NET_TRANS_RULE_ID_ETH;
767 memcpy(spec_l2->eth.dst_mac_msk, &mac_msk, ETH_ALEN);
768 if ((cmd->fs.flow_type & ~FLOW_EXT) != ETHER_FLOW)
769 memcpy(spec_l2->eth.dst_mac, &be_mac, ETH_ALEN);
770
771 if ((cmd->fs.flow_type & FLOW_EXT) && cmd->fs.m_ext.vlan_tci) {
772 spec_l2->eth.vlan_id = cmd->fs.h_ext.vlan_tci;
773 spec_l2->eth.vlan_id_msk = cpu_to_be16(0xfff);
774 }
775
776 list_add_tail(&spec_l2->list, rule_list_h);
777
778 switch (cmd->fs.flow_type & ~FLOW_EXT) {
779 case ETHER_FLOW:
780 eth_spec = &cmd->fs.h_u.ether_spec;
781 memcpy(&spec_l2->eth.dst_mac, eth_spec->h_dest, ETH_ALEN);
782 spec_l2->eth.ether_type = eth_spec->h_proto;
783 if (eth_spec->h_proto)
784 spec_l2->eth.ether_type_enable = 1;
785 break;
786 case IP_USER_FLOW:
787 err = add_ip_rule(priv, cmd, rule_list_h);
788 break;
789 case TCP_V4_FLOW:
790 err = add_tcp_udp_rule(priv, cmd, rule_list_h, TCP_V4_FLOW);
791 break;
792 case UDP_V4_FLOW:
793 err = add_tcp_udp_rule(priv, cmd, rule_list_h, UDP_V4_FLOW);
794 break;
795 }
796
797 return err;
798 }
799
800 static int mlx4_en_flow_replace(struct net_device *dev,
801 struct ethtool_rxnfc *cmd)
802 {
803 int err;
804 struct mlx4_en_priv *priv = netdev_priv(dev);
805 struct ethtool_flow_id *loc_rule;
806 struct mlx4_spec_list *spec, *tmp_spec;
807 u32 qpn;
808 u64 reg_id;
809
810 struct mlx4_net_trans_rule rule = {
811 .queue_mode = MLX4_NET_TRANS_Q_FIFO,
812 .exclusive = 0,
813 .allow_loopback = 1,
814 .promisc_mode = MLX4_FS_PROMISC_NONE,
815 };
816
817 rule.port = priv->port;
818 rule.priority = MLX4_DOMAIN_ETHTOOL | cmd->fs.location;
819 INIT_LIST_HEAD(&rule.list);
820
821 /* Allow direct QP attaches if the EN_ETHTOOL_QP_ATTACH flag is set */
822 if (cmd->fs.ring_cookie == RX_CLS_FLOW_DISC)
823 qpn = priv->drop_qp.qpn;
824 else if (cmd->fs.ring_cookie & EN_ETHTOOL_QP_ATTACH) {
825 qpn = cmd->fs.ring_cookie & (EN_ETHTOOL_QP_ATTACH - 1);
826 } else {
827 if (cmd->fs.ring_cookie >= priv->rx_ring_num) {
828 en_warn(priv, "rxnfc: RX ring (%llu) doesn't exist.\n",
829 cmd->fs.ring_cookie);
830 return -EINVAL;
831 }
832 qpn = priv->rss_map.qps[cmd->fs.ring_cookie].qpn;
833 if (!qpn) {
834 en_warn(priv, "rxnfc: RX ring (%llu) is inactive.\n",
835 cmd->fs.ring_cookie);
836 return -EINVAL;
837 }
838 }
839 rule.qpn = qpn;
840 err = mlx4_en_ethtool_to_net_trans_rule(dev, cmd, &rule.list);
841 if (err)
842 goto out_free_list;
843
844 loc_rule = &priv->ethtool_rules[cmd->fs.location];
845 if (loc_rule->id) {
846 err = mlx4_flow_detach(priv->mdev->dev, loc_rule->id);
847 if (err) {
848 en_err(priv, "Fail to detach network rule at location %d. registration id = %llx\n",
849 cmd->fs.location, loc_rule->id);
850 goto out_free_list;
851 }
852 loc_rule->id = 0;
853 memset(&loc_rule->flow_spec, 0,
854 sizeof(struct ethtool_rx_flow_spec));
855 }
856 err = mlx4_flow_attach(priv->mdev->dev, &rule, &reg_id);
857 if (err) {
858 en_err(priv, "Fail to attach network rule at location %d.\n",
859 cmd->fs.location);
860 goto out_free_list;
861 }
862 loc_rule->id = reg_id;
863 memcpy(&loc_rule->flow_spec, &cmd->fs,
864 sizeof(struct ethtool_rx_flow_spec));
865
866 out_free_list:
867 list_for_each_entry_safe(spec, tmp_spec, &rule.list, list) {
868 list_del(&spec->list);
869 kfree(spec);
870 }
871 return err;
872 }
873
874 static int mlx4_en_flow_detach(struct net_device *dev,
875 struct ethtool_rxnfc *cmd)
876 {
877 int err = 0;
878 struct ethtool_flow_id *rule;
879 struct mlx4_en_priv *priv = netdev_priv(dev);
880
881 if (cmd->fs.location >= MAX_NUM_OF_FS_RULES)
882 return -EINVAL;
883
884 rule = &priv->ethtool_rules[cmd->fs.location];
885 if (!rule->id) {
886 err = -ENOENT;
887 goto out;
888 }
889
890 err = mlx4_flow_detach(priv->mdev->dev, rule->id);
891 if (err) {
892 en_err(priv, "Fail to detach network rule at location %d. registration id = 0x%llx\n",
893 cmd->fs.location, rule->id);
894 goto out;
895 }
896 rule->id = 0;
897 memset(&rule->flow_spec, 0, sizeof(struct ethtool_rx_flow_spec));
898 out:
899 return err;
900
901 }
902
903 static int mlx4_en_get_flow(struct net_device *dev, struct ethtool_rxnfc *cmd,
904 int loc)
905 {
906 int err = 0;
907 struct ethtool_flow_id *rule;
908 struct mlx4_en_priv *priv = netdev_priv(dev);
909
910 if (loc < 0 || loc >= MAX_NUM_OF_FS_RULES)
911 return -EINVAL;
912
913 rule = &priv->ethtool_rules[loc];
914 if (rule->id)
915 memcpy(&cmd->fs, &rule->flow_spec,
916 sizeof(struct ethtool_rx_flow_spec));
917 else
918 err = -ENOENT;
919
920 return err;
921 }
922
923 static int mlx4_en_get_num_flows(struct mlx4_en_priv *priv)
924 {
925
926 int i, res = 0;
927 for (i = 0; i < MAX_NUM_OF_FS_RULES; i++) {
928 if (priv->ethtool_rules[i].id)
929 res++;
930 }
931 return res;
932
933 }
934
935 static int mlx4_en_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
936 u32 *rule_locs)
937 {
938 struct mlx4_en_priv *priv = netdev_priv(dev);
939 struct mlx4_en_dev *mdev = priv->mdev;
940 int err = 0;
941 int i = 0, priority = 0;
942
943 if ((cmd->cmd == ETHTOOL_GRXCLSRLCNT ||
944 cmd->cmd == ETHTOOL_GRXCLSRULE ||
945 cmd->cmd == ETHTOOL_GRXCLSRLALL) &&
946 mdev->dev->caps.steering_mode != MLX4_STEERING_MODE_DEVICE_MANAGED)
947 return -EINVAL;
948
949 switch (cmd->cmd) {
950 case ETHTOOL_GRXRINGS:
951 cmd->data = priv->rx_ring_num;
952 break;
953 case ETHTOOL_GRXCLSRLCNT:
954 cmd->rule_cnt = mlx4_en_get_num_flows(priv);
955 break;
956 case ETHTOOL_GRXCLSRULE:
957 err = mlx4_en_get_flow(dev, cmd, cmd->fs.location);
958 break;
959 case ETHTOOL_GRXCLSRLALL:
960 while ((!err || err == -ENOENT) && priority < cmd->rule_cnt) {
961 err = mlx4_en_get_flow(dev, cmd, i);
962 if (!err)
963 rule_locs[priority++] = i;
964 i++;
965 }
966 err = 0;
967 break;
968 default:
969 err = -EOPNOTSUPP;
970 break;
971 }
972
973 return err;
974 }
975
976 static int mlx4_en_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd)
977 {
978 int err = 0;
979 struct mlx4_en_priv *priv = netdev_priv(dev);
980 struct mlx4_en_dev *mdev = priv->mdev;
981
982 if (mdev->dev->caps.steering_mode != MLX4_STEERING_MODE_DEVICE_MANAGED)
983 return -EINVAL;
984
985 switch (cmd->cmd) {
986 case ETHTOOL_SRXCLSRLINS:
987 err = mlx4_en_flow_replace(dev, cmd);
988 break;
989 case ETHTOOL_SRXCLSRLDEL:
990 err = mlx4_en_flow_detach(dev, cmd);
991 break;
992 default:
993 en_warn(priv, "Unsupported ethtool command. (%d)\n", cmd->cmd);
994 return -EINVAL;
995 }
996
997 return err;
998 }
999
1000 static void mlx4_en_get_channels(struct net_device *dev,
1001 struct ethtool_channels *channel)
1002 {
1003 struct mlx4_en_priv *priv = netdev_priv(dev);
1004
1005 memset(channel, 0, sizeof(*channel));
1006
1007 channel->max_rx = MAX_RX_RINGS;
1008 channel->max_tx = MLX4_EN_MAX_TX_RING_P_UP;
1009
1010 channel->rx_count = priv->rx_ring_num;
1011 channel->tx_count = priv->tx_ring_num / MLX4_EN_NUM_UP;
1012 }
1013
1014 static int mlx4_en_set_channels(struct net_device *dev,
1015 struct ethtool_channels *channel)
1016 {
1017 struct mlx4_en_priv *priv = netdev_priv(dev);
1018 struct mlx4_en_dev *mdev = priv->mdev;
1019 int port_up;
1020 int err = 0;
1021
1022 if (channel->other_count || channel->combined_count ||
1023 channel->tx_count > MLX4_EN_MAX_TX_RING_P_UP ||
1024 channel->rx_count > MAX_RX_RINGS ||
1025 !channel->tx_count || !channel->rx_count)
1026 return -EINVAL;
1027
1028 mutex_lock(&mdev->state_lock);
1029 if (priv->port_up) {
1030 port_up = 1;
1031 mlx4_en_stop_port(dev);
1032 }
1033
1034 mlx4_en_free_resources(priv);
1035
1036 priv->num_tx_rings_p_up = channel->tx_count;
1037 priv->tx_ring_num = channel->tx_count * MLX4_EN_NUM_UP;
1038 priv->rx_ring_num = channel->rx_count;
1039
1040 err = mlx4_en_alloc_resources(priv);
1041 if (err) {
1042 en_err(priv, "Failed reallocating port resources\n");
1043 goto out;
1044 }
1045
1046 netif_set_real_num_tx_queues(dev, priv->tx_ring_num);
1047 netif_set_real_num_rx_queues(dev, priv->rx_ring_num);
1048
1049 mlx4_en_setup_tc(dev, MLX4_EN_NUM_UP);
1050
1051 en_warn(priv, "Using %d TX rings\n", priv->tx_ring_num);
1052 en_warn(priv, "Using %d RX rings\n", priv->rx_ring_num);
1053
1054 if (port_up) {
1055 err = mlx4_en_start_port(dev);
1056 if (err)
1057 en_err(priv, "Failed starting port\n");
1058 }
1059
1060 err = mlx4_en_moderation_update(priv);
1061
1062 out:
1063 mutex_unlock(&mdev->state_lock);
1064 return err;
1065 }
1066
1067 const struct ethtool_ops mlx4_en_ethtool_ops = {
1068 .get_drvinfo = mlx4_en_get_drvinfo,
1069 .get_settings = mlx4_en_get_settings,
1070 .set_settings = mlx4_en_set_settings,
1071 .get_link = ethtool_op_get_link,
1072 .get_strings = mlx4_en_get_strings,
1073 .get_sset_count = mlx4_en_get_sset_count,
1074 .get_ethtool_stats = mlx4_en_get_ethtool_stats,
1075 .self_test = mlx4_en_self_test,
1076 .get_wol = mlx4_en_get_wol,
1077 .set_wol = mlx4_en_set_wol,
1078 .get_msglevel = mlx4_en_get_msglevel,
1079 .set_msglevel = mlx4_en_set_msglevel,
1080 .get_coalesce = mlx4_en_get_coalesce,
1081 .set_coalesce = mlx4_en_set_coalesce,
1082 .get_pauseparam = mlx4_en_get_pauseparam,
1083 .set_pauseparam = mlx4_en_set_pauseparam,
1084 .get_ringparam = mlx4_en_get_ringparam,
1085 .set_ringparam = mlx4_en_set_ringparam,
1086 .get_rxnfc = mlx4_en_get_rxnfc,
1087 .set_rxnfc = mlx4_en_set_rxnfc,
1088 .get_rxfh_indir_size = mlx4_en_get_rxfh_indir_size,
1089 .get_rxfh_indir = mlx4_en_get_rxfh_indir,
1090 .set_rxfh_indir = mlx4_en_set_rxfh_indir,
1091 .get_channels = mlx4_en_get_channels,
1092 .set_channels = mlx4_en_set_channels,
1093 };
1094
1095
1096
1097
1098
Linux kernel - Deliverables
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