1 /*
2 * Copyright (c) 2007, 2014 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/netdevice.h>
36 #include <linux/mlx4/driver.h>
37 #include <linux/in.h>
38 #include <net/ip.h>
39 #include <linux/bitmap.h>
40
41 #include "mlx4_en.h"
42 #include "en_port.h"
43
44 #define EN_ETHTOOL_QP_ATTACH (1ull << 63)
45
46 union mlx4_ethtool_flow_union {
47 struct ethtool_tcpip4_spec tcp_ip4_spec;
48 struct ethtool_tcpip4_spec udp_ip4_spec;
49 struct ethtool_tcpip4_spec sctp_ip4_spec;
50 struct ethtool_ah_espip4_spec ah_ip4_spec;
51 struct ethtool_ah_espip4_spec esp_ip4_spec;
52 struct ethtool_usrip4_spec usr_ip4_spec;
53 struct ethhdr ether_spec;
54 __u8 hdata[52];
55 };
56
57 struct mlx4_ethtool_flow_ext {
58 __u8 padding[2];
59 unsigned char h_dest[ETH_ALEN];
60 __be16 vlan_etype;
61 __be16 vlan_tci;
62 __be32 data[2];
63 };
64
65 struct mlx4_ethtool_rx_flow_spec {
66 __u32 flow_type;
67 union mlx4_ethtool_flow_union h_u;
68 struct mlx4_ethtool_flow_ext h_ext;
69 union mlx4_ethtool_flow_union m_u;
70 struct mlx4_ethtool_flow_ext m_ext;
71 __u64 ring_cookie;
72 __u32 location;
73 };
74
75 struct mlx4_ethtool_rxnfc {
76 __u32 cmd;
77 __u32 flow_type;
78 __u64 data;
79 struct mlx4_ethtool_rx_flow_spec fs;
80 __u32 rule_cnt;
81 __u32 rule_locs[0];
82 };
83
84 #ifndef FLOW_MAC_EXT
85 #define FLOW_MAC_EXT 0x40000000
86 #endif
87
88 static void
mlx4_en_get_drvinfo(struct net_device * dev,struct ethtool_drvinfo * drvinfo)89 mlx4_en_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *drvinfo)
90 {
91 struct mlx4_en_priv *priv = netdev_priv(dev);
92 struct mlx4_en_dev *mdev = priv->mdev;
93
94 strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver));
95 strlcpy(drvinfo->version, DRV_VERSION " (" DRV_RELDATE ")",
96 sizeof(drvinfo->version));
97 snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
98 "%d.%d.%d",
99 (u16) (mdev->dev->caps.fw_ver >> 32),
100 (u16) ((mdev->dev->caps.fw_ver >> 16) & 0xffff),
101 (u16) (mdev->dev->caps.fw_ver & 0xffff));
102 strlcpy(drvinfo->bus_info, pci_name(mdev->dev->pdev),
103 sizeof(drvinfo->bus_info));
104 drvinfo->n_stats = 0;
105 drvinfo->regdump_len = 0;
106 drvinfo->eedump_len = 0;
107 }
108
109 static const char main_strings[][ETH_GSTRING_LEN] = {
110 /* packet statistics */
111 "rx_packets",
112 "rx_bytes",
113 "rx_multicast_packets",
114 "rx_broadcast_packets",
115 "rx_errors",
116 "rx_dropped",
117 "rx_length_errors",
118 "rx_over_errors",
119 "rx_crc_errors",
120 "rx_jabbers",
121 "rx_in_range_length_error",
122 "rx_out_range_length_error",
123 "rx_lt_64_bytes_packets",
124 "rx_127_bytes_packets",
125 "rx_255_bytes_packets",
126 "rx_511_bytes_packets",
127 "rx_1023_bytes_packets",
128 "rx_1518_bytes_packets",
129 "rx_1522_bytes_packets",
130 "rx_1548_bytes_packets",
131 "rx_gt_1548_bytes_packets",
132 "tx_packets",
133 "tx_bytes",
134 "tx_multicast_packets",
135 "tx_broadcast_packets",
136 "tx_errors",
137 "tx_dropped",
138 "tx_lt_64_bytes_packets",
139 "tx_127_bytes_packets",
140 "tx_255_bytes_packets",
141 "tx_511_bytes_packets",
142 "tx_1023_bytes_packets",
143 "tx_1518_bytes_packets",
144 "tx_1522_bytes_packets",
145 "tx_1548_bytes_packets",
146 "tx_gt_1548_bytes_packets",
147 "rx_prio_0_packets", "rx_prio_0_bytes",
148 "rx_prio_1_packets", "rx_prio_1_bytes",
149 "rx_prio_2_packets", "rx_prio_2_bytes",
150 "rx_prio_3_packets", "rx_prio_3_bytes",
151 "rx_prio_4_packets", "rx_prio_4_bytes",
152 "rx_prio_5_packets", "rx_prio_5_bytes",
153 "rx_prio_6_packets", "rx_prio_6_bytes",
154 "rx_prio_7_packets", "rx_prio_7_bytes",
155 "rx_novlan_packets", "rx_novlan_bytes",
156 "tx_prio_0_packets", "tx_prio_0_bytes",
157 "tx_prio_1_packets", "tx_prio_1_bytes",
158 "tx_prio_2_packets", "tx_prio_2_bytes",
159 "tx_prio_3_packets", "tx_prio_3_bytes",
160 "tx_prio_4_packets", "tx_prio_4_bytes",
161 "tx_prio_5_packets", "tx_prio_5_bytes",
162 "tx_prio_6_packets", "tx_prio_6_bytes",
163 "tx_prio_7_packets", "tx_prio_7_bytes",
164 "tx_novlan_packets", "tx_novlan_bytes",
165
166 /* flow control statistics */
167 "rx_pause_prio_0", "rx_pause_duration_prio_0",
168 "rx_pause_transition_prio_0", "tx_pause_prio_0",
169 "tx_pause_duration_prio_0", "tx_pause_transition_prio_0",
170 "rx_pause_prio_1", "rx_pause_duration_prio_1",
171 "rx_pause_transition_prio_1", "tx_pause_prio_1",
172 "tx_pause_duration_prio_1", "tx_pause_transition_prio_1",
173 "rx_pause_prio_2", "rx_pause_duration_prio_2",
174 "rx_pause_transition_prio_2", "tx_pause_prio_2",
175 "tx_pause_duration_prio_2", "tx_pause_transition_prio_2",
176 "rx_pause_prio_3", "rx_pause_duration_prio_3",
177 "rx_pause_transition_prio_3", "tx_pause_prio_3",
178 "tx_pause_duration_prio_3", "tx_pause_transition_prio_3",
179 "rx_pause_prio_4", "rx_pause_duration_prio_4",
180 "rx_pause_transition_prio_4", "tx_pause_prio_4",
181 "tx_pause_duration_prio_4", "tx_pause_transition_prio_4",
182 "rx_pause_prio_5", "rx_pause_duration_prio_5",
183 "rx_pause_transition_prio_5", "tx_pause_prio_5",
184 "tx_pause_duration_prio_5", "tx_pause_transition_prio_5",
185 "rx_pause_prio_6", "rx_pause_duration_prio_6",
186 "rx_pause_transition_prio_6", "tx_pause_prio_6",
187 "tx_pause_duration_prio_6", "tx_pause_transition_prio_6",
188 "rx_pause_prio_7", "rx_pause_duration_prio_7",
189 "rx_pause_transition_prio_7", "tx_pause_prio_7",
190 "tx_pause_duration_prio_7", "tx_pause_transition_prio_7",
191
192 /* VF statistics */
193 "rx_packets",
194 "rx_bytes",
195 "rx_multicast_packets",
196 "rx_broadcast_packets",
197 "rx_errors",
198 "rx_dropped",
199 "tx_packets",
200 "tx_bytes",
201 "tx_multicast_packets",
202 "tx_broadcast_packets",
203 "tx_errors",
204
205 /* VPort statistics */
206 "vport_rx_unicast_packets",
207 "vport_rx_unicast_bytes",
208 "vport_rx_multicast_packets",
209 "vport_rx_multicast_bytes",
210 "vport_rx_broadcast_packets",
211 "vport_rx_broadcast_bytes",
212 "vport_rx_dropped",
213 "vport_rx_errors",
214 "vport_tx_unicast_packets",
215 "vport_tx_unicast_bytes",
216 "vport_tx_multicast_packets",
217 "vport_tx_multicast_bytes",
218 "vport_tx_broadcast_packets",
219 "vport_tx_broadcast_bytes",
220 "vport_tx_errors",
221
222 /* port statistics */
223 "tx_tso_packets",
224 "tx_queue_stopped", "tx_wake_queue", "tx_timeout", "rx_alloc_failed",
225 "rx_csum_good", "rx_csum_none", "tx_chksum_offload",
226 };
227
228 static const char mlx4_en_test_names[][ETH_GSTRING_LEN]= {
229 "Interrupt Test",
230 "Link Test",
231 "Speed Test",
232 "Register Test",
233 "Loopback Test",
234 };
235
mlx4_en_get_msglevel(struct net_device * dev)236 static u32 mlx4_en_get_msglevel(struct net_device *dev)
237 {
238 return ((struct mlx4_en_priv *) netdev_priv(dev))->msg_enable;
239 }
240
mlx4_en_set_msglevel(struct net_device * dev,u32 val)241 static void mlx4_en_set_msglevel(struct net_device *dev, u32 val)
242 {
243 ((struct mlx4_en_priv *) netdev_priv(dev))->msg_enable = val;
244 }
245
mlx4_en_get_wol(struct net_device * netdev,struct ethtool_wolinfo * wol)246 static void mlx4_en_get_wol(struct net_device *netdev,
247 struct ethtool_wolinfo *wol)
248 {
249 struct mlx4_en_priv *priv = netdev_priv(netdev);
250 int err = 0;
251 u64 config = 0;
252 u64 mask;
253
254 if ((priv->port < 1) || (priv->port > 2)) {
255 en_err(priv, "Failed to get WoL information\n");
256 return;
257 }
258
259 mask = (priv->port == 1) ? MLX4_DEV_CAP_FLAG_WOL_PORT1 :
260 MLX4_DEV_CAP_FLAG_WOL_PORT2;
261
262 if (!(priv->mdev->dev->caps.flags & mask)) {
263 wol->supported = 0;
264 wol->wolopts = 0;
265 return;
266 }
267
268 err = mlx4_wol_read(priv->mdev->dev, &config, priv->port);
269 if (err) {
270 en_err(priv, "Failed to get WoL information\n");
271 return;
272 }
273
274 if (config & MLX4_EN_WOL_MAGIC)
275 wol->supported = WAKE_MAGIC;
276 else
277 wol->supported = 0;
278
279 if (config & MLX4_EN_WOL_ENABLED)
280 wol->wolopts = WAKE_MAGIC;
281 else
282 wol->wolopts = 0;
283 }
284
mlx4_en_set_wol(struct net_device * netdev,struct ethtool_wolinfo * wol)285 static int mlx4_en_set_wol(struct net_device *netdev,
286 struct ethtool_wolinfo *wol)
287 {
288 struct mlx4_en_priv *priv = netdev_priv(netdev);
289 u64 config = 0;
290 int err = 0;
291 u64 mask;
292
293 if ((priv->port < 1) || (priv->port > 2))
294 return -EOPNOTSUPP;
295
296 mask = (priv->port == 1) ? MLX4_DEV_CAP_FLAG_WOL_PORT1 :
297 MLX4_DEV_CAP_FLAG_WOL_PORT2;
298
299 if (!(priv->mdev->dev->caps.flags & mask))
300 return -EOPNOTSUPP;
301
302 if (wol->supported & ~WAKE_MAGIC)
303 return -EINVAL;
304
305 err = mlx4_wol_read(priv->mdev->dev, &config, priv->port);
306 if (err) {
307 en_err(priv, "Failed to get WoL info, unable to modify\n");
308 return err;
309 }
310
311 if (wol->wolopts & WAKE_MAGIC) {
312 config |= MLX4_EN_WOL_DO_MODIFY | MLX4_EN_WOL_ENABLED |
313 MLX4_EN_WOL_MAGIC;
314 } else {
315 config &= ~(MLX4_EN_WOL_ENABLED | MLX4_EN_WOL_MAGIC);
316 config |= MLX4_EN_WOL_DO_MODIFY;
317 }
318
319 err = mlx4_wol_write(priv->mdev->dev, config, priv->port);
320 if (err)
321 en_err(priv, "Failed to set WoL information\n");
322
323 return err;
324 }
325
326 struct bitmap_sim_iterator {
327 bool advance_array;
328 unsigned long *stats_bitmap;
329 unsigned int count;
330 unsigned int j;
331 };
332
bitmap_sim_iterator_init(struct bitmap_sim_iterator * h,unsigned long * stats_bitmap,int count)333 static inline void bitmap_sim_iterator_init(struct bitmap_sim_iterator *h,
334 unsigned long *stats_bitmap,
335 int count)
336 {
337 h->j = 0;
338 h->advance_array = !bitmap_empty(stats_bitmap, count);
339 h->count = h->advance_array ? bitmap_weight(stats_bitmap, count)
340 : count;
341 h->stats_bitmap = stats_bitmap;
342 }
343
bitmap_sim_iterator_test(struct bitmap_sim_iterator * h)344 static inline int bitmap_sim_iterator_test(struct bitmap_sim_iterator *h)
345 {
346 return !h->advance_array ? 1 : test_bit(h->j, h->stats_bitmap);
347 }
348
bitmap_sim_iterator_inc(struct bitmap_sim_iterator * h)349 static inline int bitmap_sim_iterator_inc(struct bitmap_sim_iterator *h)
350 {
351 return h->j++;
352 }
353
bitmap_sim_iterator_count(struct bitmap_sim_iterator * h)354 static inline unsigned int bitmap_sim_iterator_count(
355 struct bitmap_sim_iterator *h)
356 {
357 return h->count;
358 }
359
mlx4_en_get_sset_count(struct net_device * dev,int sset)360 int mlx4_en_get_sset_count(struct net_device *dev, int sset)
361 {
362 struct mlx4_en_priv *priv = netdev_priv(dev);
363 struct bitmap_sim_iterator it;
364
365 int num_of_stats = NUM_ALL_STATS -
366 ((priv->mdev->dev->caps.flags2 &
367 MLX4_DEV_CAP_FLAG2_FLOWSTATS_EN) ? 0 : NUM_FLOW_STATS);
368
369 bitmap_sim_iterator_init(&it, priv->stats_bitmap, num_of_stats);
370
371 switch (sset) {
372 case ETH_SS_STATS:
373 return bitmap_sim_iterator_count(&it) +
374 (priv->tx_ring_num * 2) +
375 #ifdef LL_EXTENDED_STATS
376 (priv->rx_ring_num * 5);
377 #else
378 (priv->rx_ring_num * 2);
379 #endif
380 case ETH_SS_TEST:
381 return MLX4_EN_NUM_SELF_TEST - !(priv->mdev->dev->caps.flags
382 & MLX4_DEV_CAP_FLAG_UC_LOOPBACK) * 2;
383 default:
384 return -EOPNOTSUPP;
385 }
386 }
387
mlx4_en_get_ethtool_stats(struct net_device * dev,struct ethtool_stats * stats,u64 * data)388 void mlx4_en_get_ethtool_stats(struct net_device *dev,
389 struct ethtool_stats *stats, u64 *data)
390 {
391 struct mlx4_en_priv *priv = netdev_priv(dev);
392 int index = 0;
393 int i;
394 struct bitmap_sim_iterator it;
395
396 int num_of_stats = NUM_ALL_STATS -
397 ((priv->mdev->dev->caps.flags2 &
398 MLX4_DEV_CAP_FLAG2_FLOWSTATS_EN) ? 0 : NUM_FLOW_STATS);
399
400 bitmap_sim_iterator_init(&it, priv->stats_bitmap, num_of_stats);
401
402 if (!data || !priv->port_up)
403 return;
404
405 spin_lock_bh(&priv->stats_lock);
406
407 for (i = 0; i < NUM_PKT_STATS; i++,
408 bitmap_sim_iterator_inc(&it))
409 if (bitmap_sim_iterator_test(&it))
410 data[index++] =
411 ((unsigned long *)&priv->pkstats)[i];
412 for (i = 0; i < NUM_FLOW_STATS; i++,
413 bitmap_sim_iterator_inc(&it))
414 if (priv->mdev->dev->caps.flags2 &
415 MLX4_DEV_CAP_FLAG2_FLOWSTATS_EN)
416 if (bitmap_sim_iterator_test(&it))
417 data[index++] =
418 ((u64 *)&priv->flowstats)[i];
419 for (i = 0; i < NUM_VF_STATS; i++,
420 bitmap_sim_iterator_inc(&it))
421 if (bitmap_sim_iterator_test(&it))
422 data[index++] =
423 ((unsigned long *)&priv->vf_stats)[i];
424 for (i = 0; i < NUM_VPORT_STATS; i++,
425 bitmap_sim_iterator_inc(&it))
426 if (bitmap_sim_iterator_test(&it))
427 data[index++] =
428 ((unsigned long *)&priv->vport_stats)[i];
429 for (i = 0; i < NUM_PORT_STATS; i++,
430 bitmap_sim_iterator_inc(&it))
431 if (bitmap_sim_iterator_test(&it))
432 data[index++] =
433 ((unsigned long *)&priv->port_stats)[i];
434
435 for (i = 0; i < priv->tx_ring_num; i++) {
436 data[index++] = priv->tx_ring[i]->packets;
437 data[index++] = priv->tx_ring[i]->bytes;
438 }
439 for (i = 0; i < priv->rx_ring_num; i++) {
440 data[index++] = priv->rx_ring[i]->packets;
441 data[index++] = priv->rx_ring[i]->bytes;
442 #ifdef LL_EXTENDED_STATS
443 data[index++] = priv->rx_ring[i]->yields;
444 data[index++] = priv->rx_ring[i]->misses;
445 data[index++] = priv->rx_ring[i]->cleaned;
446 #endif
447 }
448 spin_unlock_bh(&priv->stats_lock);
449
450 }
451
mlx4_en_restore_ethtool_stats(struct mlx4_en_priv * priv,u64 * data)452 void mlx4_en_restore_ethtool_stats(struct mlx4_en_priv *priv, u64 *data)
453 {
454 int index = 0;
455 int i;
456 struct bitmap_sim_iterator it;
457
458 int num_of_stats = NUM_ALL_STATS -
459 ((priv->mdev->dev->caps.flags2 &
460 MLX4_DEV_CAP_FLAG2_FLOWSTATS_EN) ? 0 : NUM_FLOW_STATS);
461
462 bitmap_sim_iterator_init(&it, priv->stats_bitmap, num_of_stats);
463
464 if (!data || !priv->port_up)
465 return;
466
467 spin_lock_bh(&priv->stats_lock);
468
469 for (i = 0; i < NUM_PKT_STATS; i++,
470 bitmap_sim_iterator_inc(&it))
471 if (bitmap_sim_iterator_test(&it))
472 ((unsigned long *)&priv->pkstats)[i] =
473 data[index++];
474 for (i = 0; i < NUM_FLOW_STATS; i++,
475 bitmap_sim_iterator_inc(&it))
476 if (priv->mdev->dev->caps.flags2 &
477 MLX4_DEV_CAP_FLAG2_FLOWSTATS_EN)
478 if (bitmap_sim_iterator_test(&it))
479 ((u64 *)&priv->flowstats)[i] =
480 data[index++];
481 for (i = 0; i < NUM_VF_STATS; i++,
482 bitmap_sim_iterator_inc(&it))
483 if (bitmap_sim_iterator_test(&it))
484 ((unsigned long *)&priv->vf_stats)[i] =
485 data[index++];
486 for (i = 0; i < NUM_VPORT_STATS; i++,
487 bitmap_sim_iterator_inc(&it))
488 if (bitmap_sim_iterator_test(&it))
489 ((unsigned long *)&priv->vport_stats)[i] =
490 data[index++];
491 for (i = 0; i < NUM_PORT_STATS; i++,
492 bitmap_sim_iterator_inc(&it))
493 if (bitmap_sim_iterator_test(&it))
494 ((unsigned long *)&priv->port_stats)[i] =
495 data[index++];
496
497 for (i = 0; i < priv->tx_ring_num; i++) {
498 priv->tx_ring[i]->packets = data[index++];
499 priv->tx_ring[i]->bytes = data[index++];
500 }
501 for (i = 0; i < priv->rx_ring_num; i++) {
502 priv->rx_ring[i]->packets = data[index++];
503 priv->rx_ring[i]->bytes = data[index++];
504 }
505 spin_unlock_bh(&priv->stats_lock);
506 }
507
mlx4_en_self_test(struct net_device * dev,struct ethtool_test * etest,u64 * buf)508 static void mlx4_en_self_test(struct net_device *dev,
509 struct ethtool_test *etest, u64 *buf)
510 {
511 mlx4_en_ex_selftest(dev, &etest->flags, buf);
512 }
513
mlx4_en_get_strings(struct net_device * dev,uint32_t stringset,uint8_t * data)514 static void mlx4_en_get_strings(struct net_device *dev,
515 uint32_t stringset, uint8_t *data)
516 {
517 struct mlx4_en_priv *priv = netdev_priv(dev);
518 int index = 0;
519 int i, k;
520 struct bitmap_sim_iterator it;
521
522 int num_of_stats = NUM_ALL_STATS -
523 ((priv->mdev->dev->caps.flags2 &
524 MLX4_DEV_CAP_FLAG2_FLOWSTATS_EN) ? 0 : NUM_FLOW_STATS);
525
526 bitmap_sim_iterator_init(&it, priv->stats_bitmap, num_of_stats);
527
528 switch (stringset) {
529 case ETH_SS_TEST:
530 for (i = 0; i < MLX4_EN_NUM_SELF_TEST - 2; i++)
531 strcpy(data + i * ETH_GSTRING_LEN, mlx4_en_test_names[i]);
532 if (priv->mdev->dev->caps.flags & MLX4_DEV_CAP_FLAG_UC_LOOPBACK)
533 for (; i < MLX4_EN_NUM_SELF_TEST; i++)
534 strcpy(data + i * ETH_GSTRING_LEN, mlx4_en_test_names[i]);
535 break;
536
537 case ETH_SS_STATS:
538 /* Add main counters */
539 for (i = 0; i < NUM_PKT_STATS; i++,
540 bitmap_sim_iterator_inc(&it))
541 if (bitmap_sim_iterator_test(&it))
542 strcpy(data + (index++) * ETH_GSTRING_LEN,
543 main_strings[i]);
544
545 for (k = 0; k < NUM_FLOW_STATS; k++,
546 bitmap_sim_iterator_inc(&it))
547 if (priv->mdev->dev->caps.flags2 &
548 MLX4_DEV_CAP_FLAG2_FLOWSTATS_EN)
549 if (bitmap_sim_iterator_test(&it))
550 strcpy(data + (index++) *
551 ETH_GSTRING_LEN,
552 main_strings[i + k]);
553
554 for (; (i + k) < num_of_stats; i++,
555 bitmap_sim_iterator_inc(&it))
556 if (bitmap_sim_iterator_test(&it))
557 strcpy(data + (index++) * ETH_GSTRING_LEN,
558 main_strings[i + k]);
559
560 for (i = 0; i < priv->tx_ring_num; i++) {
561 sprintf(data + (index++) * ETH_GSTRING_LEN,
562 "tx%d_packets", i);
563 sprintf(data + (index++) * ETH_GSTRING_LEN,
564 "tx%d_bytes", i);
565 }
566 for (i = 0; i < priv->rx_ring_num; i++) {
567 sprintf(data + (index++) * ETH_GSTRING_LEN,
568 "rx%d_packets", i);
569 sprintf(data + (index++) * ETH_GSTRING_LEN,
570 "rx%d_bytes", i);
571 #ifdef LL_EXTENDED_STATS
572 sprintf(data + (index++) * ETH_GSTRING_LEN,
573 "rx%d_napi_yield", i);
574 sprintf(data + (index++) * ETH_GSTRING_LEN,
575 "rx%d_misses", i);
576 sprintf(data + (index++) * ETH_GSTRING_LEN,
577 "rx%d_cleaned", i);
578 #endif
579 }
580 break;
581 }
582 }
583
mlx4_en_autoneg_get(struct net_device * dev)584 static u32 mlx4_en_autoneg_get(struct net_device *dev)
585 {
586 struct mlx4_en_priv *priv = netdev_priv(dev);
587 struct mlx4_en_dev *mdev = priv->mdev;
588 u32 autoneg = AUTONEG_DISABLE;
589
590 if ((mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ETH_BACKPL_AN_REP) &&
591 priv->port_state.autoneg) {
592 autoneg = AUTONEG_ENABLE;
593 }
594
595 return autoneg;
596 }
597
mlx4_en_get_settings(struct net_device * dev,struct ethtool_cmd * cmd)598 static int mlx4_en_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
599 {
600 struct mlx4_en_priv *priv = netdev_priv(dev);
601 int trans_type;
602
603 /* SUPPORTED_1000baseT_Half isn't supported */
604 cmd->supported = SUPPORTED_1000baseT_Full
605 |SUPPORTED_10000baseT_Full;
606
607 cmd->advertising = ADVERTISED_1000baseT_Full
608 |ADVERTISED_10000baseT_Full;
609
610 cmd->supported |= SUPPORTED_1000baseKX_Full
611 |SUPPORTED_10000baseKX4_Full
612 |SUPPORTED_10000baseKR_Full
613 |SUPPORTED_10000baseR_FEC
614 |SUPPORTED_40000baseKR4_Full
615 |SUPPORTED_40000baseCR4_Full
616 |SUPPORTED_40000baseSR4_Full
617 |SUPPORTED_40000baseLR4_Full;
618
619 /* ADVERTISED_1000baseT_Half isn't advertised */
620 cmd->advertising |= ADVERTISED_1000baseKX_Full
621 |ADVERTISED_10000baseKX4_Full
622 |ADVERTISED_10000baseKR_Full
623 |ADVERTISED_10000baseR_FEC
624 |ADVERTISED_40000baseKR4_Full
625 |ADVERTISED_40000baseCR4_Full
626 |ADVERTISED_40000baseSR4_Full
627 |ADVERTISED_40000baseLR4_Full;
628
629 if (mlx4_en_QUERY_PORT(priv->mdev, priv->port))
630 return -ENOMEM;
631
632 cmd->autoneg = mlx4_en_autoneg_get(dev);
633 if (cmd->autoneg == AUTONEG_ENABLE) {
634 cmd->supported |= SUPPORTED_Autoneg;
635 cmd->advertising |= ADVERTISED_Autoneg;
636 }
637
638 trans_type = priv->port_state.transciver;
639 if (netif_carrier_ok(dev)) {
640 ethtool_cmd_speed_set(cmd, priv->port_state.link_speed);
641 cmd->duplex = DUPLEX_FULL;
642 } else {
643 ethtool_cmd_speed_set(cmd, -1);
644 cmd->duplex = -1;
645 }
646
647 if (trans_type > 0 && trans_type <= 0xC) {
648 cmd->port = PORT_FIBRE;
649 cmd->transceiver = XCVR_EXTERNAL;
650 cmd->supported |= SUPPORTED_FIBRE;
651 cmd->advertising |= ADVERTISED_FIBRE;
652 } else if (trans_type == 0x80 || trans_type == 0) {
653 cmd->port = PORT_TP;
654 cmd->transceiver = XCVR_INTERNAL;
655 cmd->supported |= SUPPORTED_TP;
656 cmd->advertising |= ADVERTISED_TP;
657 } else {
658 cmd->port = -1;
659 cmd->transceiver = -1;
660 }
661 return 0;
662 }
663
mlx4_en_duplex_to_string(int duplex)664 static const char *mlx4_en_duplex_to_string(int duplex)
665 {
666 switch (duplex) {
667 case DUPLEX_FULL:
668 return "FULL";
669 case DUPLEX_HALF:
670 return "HALF";
671 default:
672 break;
673 }
674 return "UNKNOWN";
675 }
676
mlx4_en_set_settings(struct net_device * dev,struct ethtool_cmd * cmd)677 static int mlx4_en_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
678 {
679 struct mlx4_en_priv *priv = netdev_priv(dev);
680 struct mlx4_en_port_state *port_state = &priv->port_state;
681
682 if ((cmd->autoneg != port_state->autoneg) ||
683 (ethtool_cmd_speed(cmd) != port_state->link_speed) ||
684 (cmd->duplex != DUPLEX_FULL)) {
685 en_info(priv, "Changing port state properties (auto-negotiation"
686 " , speed/duplex) is not supported. Current:"
687 " auto-negotiation=%d speed/duplex=%d/%s\n",
688 port_state->autoneg, port_state->link_speed,
689 mlx4_en_duplex_to_string(DUPLEX_FULL));
690 return -EOPNOTSUPP;
691 }
692
693 /* User provided same port state properties that are currently set.
694 * Nothing to change
695 */
696 return 0;
697 }
698
mlx4_en_get_coalesce(struct net_device * dev,struct ethtool_coalesce * coal)699 static int mlx4_en_get_coalesce(struct net_device *dev,
700 struct ethtool_coalesce *coal)
701 {
702 struct mlx4_en_priv *priv = netdev_priv(dev);
703
704 coal->tx_coalesce_usecs = priv->tx_usecs;
705 coal->tx_max_coalesced_frames = priv->tx_frames;
706 coal->rx_coalesce_usecs = priv->rx_usecs;
707 coal->rx_max_coalesced_frames = priv->rx_frames;
708
709 coal->pkt_rate_low = priv->pkt_rate_low;
710 coal->rx_coalesce_usecs_low = priv->rx_usecs_low;
711 coal->pkt_rate_high = priv->pkt_rate_high;
712 coal->rx_coalesce_usecs_high = priv->rx_usecs_high;
713 coal->rate_sample_interval = priv->sample_interval;
714 coal->use_adaptive_rx_coalesce = priv->adaptive_rx_coal;
715 return 0;
716 }
717
mlx4_en_set_coalesce(struct net_device * dev,struct ethtool_coalesce * coal)718 static int mlx4_en_set_coalesce(struct net_device *dev,
719 struct ethtool_coalesce *coal)
720 {
721 struct mlx4_en_priv *priv = netdev_priv(dev);
722 int err, i;
723
724 priv->rx_frames = (coal->rx_max_coalesced_frames ==
725 MLX4_EN_AUTO_CONF) ?
726 MLX4_EN_RX_COAL_TARGET /
727 priv->dev->mtu + 1 :
728 coal->rx_max_coalesced_frames;
729 priv->rx_usecs = (coal->rx_coalesce_usecs ==
730 MLX4_EN_AUTO_CONF) ?
731 MLX4_EN_RX_COAL_TIME :
732 coal->rx_coalesce_usecs;
733
734 /* Setting TX coalescing parameters */
735 if (coal->tx_coalesce_usecs != priv->tx_usecs ||
736 coal->tx_max_coalesced_frames != priv->tx_frames) {
737 priv->tx_usecs = coal->tx_coalesce_usecs;
738 priv->tx_frames = coal->tx_max_coalesced_frames;
739 if (priv->port_up) {
740 for (i = 0; i < priv->tx_ring_num; i++) {
741 priv->tx_cq[i]->moder_cnt = priv->tx_frames;
742 priv->tx_cq[i]->moder_time = priv->tx_usecs;
743 if (mlx4_en_set_cq_moder(priv, priv->tx_cq[i]))
744 en_warn(priv, "Failed changing moderation for TX cq %d\n", i);
745 }
746 }
747 }
748
749 /* Set adaptive coalescing params */
750 priv->pkt_rate_low = coal->pkt_rate_low;
751 priv->rx_usecs_low = coal->rx_coalesce_usecs_low;
752 priv->pkt_rate_high = coal->pkt_rate_high;
753 priv->rx_usecs_high = coal->rx_coalesce_usecs_high;
754 priv->sample_interval = coal->rate_sample_interval;
755 priv->adaptive_rx_coal = coal->use_adaptive_rx_coalesce;
756 if (priv->adaptive_rx_coal)
757 return 0;
758
759 if (priv->port_up) {
760 for (i = 0; i < priv->rx_ring_num; i++) {
761 priv->rx_cq[i]->moder_cnt = priv->rx_frames;
762 priv->rx_cq[i]->moder_time = priv->rx_usecs;
763 priv->last_moder_time[i] = MLX4_EN_AUTO_CONF;
764 err = mlx4_en_set_cq_moder(priv, priv->rx_cq[i]);
765 if (err)
766 return err;
767 }
768 }
769
770 return 0;
771 }
772
mlx4_en_set_pauseparam(struct net_device * dev,struct ethtool_pauseparam * pause)773 static int mlx4_en_set_pauseparam(struct net_device *dev,
774 struct ethtool_pauseparam *pause)
775 {
776 struct mlx4_en_priv *priv = netdev_priv(dev);
777 struct mlx4_en_dev *mdev = priv->mdev;
778 int err;
779
780 if (pause->autoneg)
781 return -EOPNOTSUPP;
782
783 priv->prof->tx_pause = pause->tx_pause != 0;
784 priv->prof->rx_pause = pause->rx_pause != 0;
785 err = mlx4_SET_PORT_general(mdev->dev, priv->port,
786 priv->rx_skb_size + ETH_FCS_LEN,
787 priv->prof->tx_pause,
788 priv->prof->tx_ppp,
789 priv->prof->rx_pause,
790 priv->prof->rx_ppp);
791 if (err)
792 en_err(priv, "Failed setting pause params\n");
793
794 return err;
795 }
796
mlx4_en_get_pauseparam(struct net_device * dev,struct ethtool_pauseparam * pause)797 static void mlx4_en_get_pauseparam(struct net_device *dev,
798 struct ethtool_pauseparam *pause)
799 {
800 struct mlx4_en_priv *priv = netdev_priv(dev);
801
802 pause->tx_pause = priv->prof->tx_pause;
803 pause->rx_pause = priv->prof->rx_pause;
804 pause->autoneg = mlx4_en_autoneg_get(dev);
805 }
806
807 /* rtnl lock must be taken before calling */
mlx4_en_pre_config(struct mlx4_en_priv * priv)808 int mlx4_en_pre_config(struct mlx4_en_priv *priv)
809 {
810 #ifdef CONFIG_RFS_ACCEL
811 struct cpu_rmap *rmap;
812
813 if (!priv->dev->rx_cpu_rmap)
814 return 0;
815
816 /* Disable RFS events
817 * Must have all RFS jobs flushed before freeing resources
818 */
819 rmap = priv->dev->rx_cpu_rmap;
820 priv->dev->rx_cpu_rmap = NULL;
821
822 rtnl_unlock();
823 free_irq_cpu_rmap(rmap);
824 rtnl_lock();
825
826 if (priv->dev->rx_cpu_rmap)
827 return -EBUSY; /* another configuration completed while lock
828 * was free
829 */
830
831 /* Make sure all currently running filter_work are being processed
832 * Other work will return immediatly because of disable_rfs
833 */
834 flush_workqueue(priv->mdev->workqueue);
835
836 #endif
837
838 return 0;
839 }
840
mlx4_en_set_ringparam(struct net_device * dev,struct ethtool_ringparam * param)841 static int mlx4_en_set_ringparam(struct net_device *dev,
842 struct ethtool_ringparam *param)
843 {
844 struct mlx4_en_priv *priv = netdev_priv(dev);
845 struct mlx4_en_dev *mdev = priv->mdev;
846 u32 rx_size, tx_size;
847 int port_up = 0;
848 int err = 0;
849 int i, n_stats;
850 u64 *data = NULL;
851
852 if (!priv->port_up)
853 return -ENOMEM;
854
855 if (param->rx_jumbo_pending || param->rx_mini_pending)
856 return -EINVAL;
857
858 rx_size = roundup_pow_of_two(param->rx_pending);
859 rx_size = max_t(u32, rx_size, MLX4_EN_MIN_RX_SIZE);
860 rx_size = min_t(u32, rx_size, MLX4_EN_MAX_RX_SIZE);
861 tx_size = roundup_pow_of_two(param->tx_pending);
862 tx_size = max_t(u32, tx_size, MLX4_EN_MIN_TX_SIZE);
863 tx_size = min_t(u32, tx_size, MLX4_EN_MAX_TX_SIZE);
864
865 if (rx_size == (priv->port_up ? priv->rx_ring[0]->actual_size :
866 priv->rx_ring[0]->size) &&
867 tx_size == priv->tx_ring[0]->size)
868 return 0;
869 err = mlx4_en_pre_config(priv);
870 if (err)
871 return err;
872
873 mutex_lock(&mdev->state_lock);
874 if (priv->port_up) {
875 port_up = 1;
876 mlx4_en_stop_port(dev);
877 }
878
879 /* Cache port statistics */
880 n_stats = mlx4_en_get_sset_count(dev, ETH_SS_STATS);
881 if (n_stats > 0) {
882 data = kmalloc(n_stats * sizeof(u64), GFP_KERNEL);
883 if (data)
884 mlx4_en_get_ethtool_stats(dev, NULL, data);
885 }
886
887 mlx4_en_free_resources(priv);
888
889 priv->prof->tx_ring_size = tx_size;
890 priv->prof->rx_ring_size = rx_size;
891
892 err = mlx4_en_alloc_resources(priv);
893 if (err) {
894 en_err(priv, "Failed reallocating port resources\n");
895 goto out;
896 }
897
898 /* Restore port statistics */
899 if (n_stats > 0 && data)
900 mlx4_en_restore_ethtool_stats(priv, data);
901
902 if (port_up) {
903 err = mlx4_en_start_port(dev);
904 if (err) {
905 en_err(priv, "Failed starting port\n");
906 goto out;
907 }
908
909 for (i = 0; i < priv->rx_ring_num; i++) {
910 priv->rx_cq[i]->moder_cnt = priv->rx_frames;
911 priv->rx_cq[i]->moder_time = priv->rx_usecs;
912 priv->last_moder_time[i] = MLX4_EN_AUTO_CONF;
913 err = mlx4_en_set_cq_moder(priv, priv->rx_cq[i]);
914 if (err)
915 goto out;
916 }
917 }
918
919 out:
920 kfree(data);
921 mutex_unlock(&mdev->state_lock);
922 return err;
923 }
924
mlx4_en_get_ringparam(struct net_device * dev,struct ethtool_ringparam * param)925 static void mlx4_en_get_ringparam(struct net_device *dev,
926 struct ethtool_ringparam *param)
927 {
928 struct mlx4_en_priv *priv = netdev_priv(dev);
929
930 if (!priv->port_up)
931 return;
932
933 memset(param, 0, sizeof(*param));
934 param->rx_max_pending = MLX4_EN_MAX_RX_SIZE;
935 param->tx_max_pending = MLX4_EN_MAX_TX_SIZE;
936 param->rx_pending = priv->port_up ?
937 priv->rx_ring[0]->actual_size : priv->rx_ring[0]->size;
938 param->tx_pending = priv->tx_ring[0]->size;
939 }
940
mlx4_en_get_rxfh_indir_size(struct net_device * dev)941 static u32 mlx4_en_get_rxfh_indir_size(struct net_device *dev)
942 {
943 struct mlx4_en_priv *priv = netdev_priv(dev);
944
945 return priv->rx_ring_num;
946 }
947
mlx4_en_get_rxfh_indir(struct net_device * dev,u32 * ring_index)948 static int mlx4_en_get_rxfh_indir(struct net_device *dev, u32 *ring_index)
949 {
950 struct mlx4_en_priv *priv = netdev_priv(dev);
951 struct mlx4_en_rss_map *rss_map = &priv->rss_map;
952 int rss_rings;
953 size_t n = priv->rx_ring_num;
954 int err = 0;
955
956 rss_rings = priv->prof->rss_rings ?: priv->rx_ring_num;
957 rss_rings = 1 << ilog2(rss_rings);
958
959 while (n--) {
960 ring_index[n] = rss_map->qps[n % rss_rings].qpn -
961 rss_map->base_qpn;
962 }
963
964 return err;
965 }
966
mlx4_en_set_rxfh_indir(struct net_device * dev,const u32 * ring_index)967 static int mlx4_en_set_rxfh_indir(struct net_device *dev,
968 const u32 *ring_index)
969 {
970 struct mlx4_en_priv *priv = netdev_priv(dev);
971 struct mlx4_en_dev *mdev = priv->mdev;
972 int port_up = 0;
973 int err = 0;
974 int i;
975 int rss_rings = 0;
976
977 /* Calculate RSS table size and make sure flows are spread evenly
978 * between rings
979 */
980 for (i = 0; i < priv->rx_ring_num; i++) {
981 if (i > 0 && !ring_index[i] && !rss_rings)
982 rss_rings = i;
983
984 if (ring_index[i] != (i % (rss_rings ?: priv->rx_ring_num)))
985 return -EINVAL;
986 }
987
988 if (!rss_rings)
989 rss_rings = priv->rx_ring_num;
990
991 /* RSS table size must be an order of 2 */
992 if (!is_power_of_2(rss_rings))
993 return -EINVAL;
994
995 mutex_lock(&mdev->state_lock);
996 if (priv->port_up) {
997 port_up = 1;
998 mlx4_en_stop_port(dev);
999 }
1000
1001 priv->prof->rss_rings = rss_rings;
1002
1003 if (port_up) {
1004 err = mlx4_en_start_port(dev);
1005 if (err)
1006 en_err(priv, "Failed starting port\n");
1007 }
1008
1009 mutex_unlock(&mdev->state_lock);
1010 return err;
1011 }
1012
1013 #define all_zeros_or_all_ones(field) \
1014 ((field) == 0 || (field) == (__force typeof(field))-1)
1015
mlx4_en_validate_flow(struct net_device * dev,struct mlx4_ethtool_rxnfc * cmd)1016 static int mlx4_en_validate_flow(struct net_device *dev,
1017 struct mlx4_ethtool_rxnfc *cmd)
1018 {
1019 struct ethtool_usrip4_spec *l3_mask;
1020 struct ethtool_tcpip4_spec *l4_mask;
1021 struct ethhdr *eth_mask;
1022
1023 if (cmd->fs.location >= MAX_NUM_OF_FS_RULES)
1024 return -EINVAL;
1025
1026 if (cmd->fs.flow_type & FLOW_MAC_EXT) {
1027 /* dest mac mask must be ff:ff:ff:ff:ff:ff */
1028 if (!is_broadcast_ether_addr(cmd->fs.m_ext.h_dest))
1029 return -EINVAL;
1030 }
1031
1032 switch (cmd->fs.flow_type & ~(FLOW_EXT | FLOW_MAC_EXT)) {
1033 case TCP_V4_FLOW:
1034 case UDP_V4_FLOW:
1035 if (cmd->fs.m_u.tcp_ip4_spec.tos)
1036 return -EINVAL;
1037 l4_mask = &cmd->fs.m_u.tcp_ip4_spec;
1038 /* don't allow mask which isn't all 0 or 1 */
1039 if (!all_zeros_or_all_ones(l4_mask->ip4src) ||
1040 !all_zeros_or_all_ones(l4_mask->ip4dst) ||
1041 !all_zeros_or_all_ones(l4_mask->psrc) ||
1042 !all_zeros_or_all_ones(l4_mask->pdst))
1043 return -EINVAL;
1044 break;
1045 case IP_USER_FLOW:
1046 l3_mask = &cmd->fs.m_u.usr_ip4_spec;
1047 if (l3_mask->l4_4_bytes || l3_mask->tos || l3_mask->proto ||
1048 cmd->fs.h_u.usr_ip4_spec.ip_ver != ETH_RX_NFC_IP4 ||
1049 (!l3_mask->ip4src && !l3_mask->ip4dst) ||
1050 !all_zeros_or_all_ones(l3_mask->ip4src) ||
1051 !all_zeros_or_all_ones(l3_mask->ip4dst))
1052 return -EINVAL;
1053 break;
1054 case ETHER_FLOW:
1055 eth_mask = &cmd->fs.m_u.ether_spec;
1056 /* source mac mask must not be set */
1057 if (!is_zero_ether_addr(eth_mask->h_source))
1058 return -EINVAL;
1059
1060 /* dest mac mask must be ff:ff:ff:ff:ff:ff */
1061 if (!is_broadcast_ether_addr(eth_mask->h_dest))
1062 return -EINVAL;
1063
1064 if (!all_zeros_or_all_ones(eth_mask->h_proto))
1065 return -EINVAL;
1066 break;
1067 default:
1068 return -EINVAL;
1069 }
1070
1071 if ((cmd->fs.flow_type & FLOW_EXT)) {
1072 if (cmd->fs.m_ext.vlan_etype ||
1073 !(cmd->fs.m_ext.vlan_tci == 0 ||
1074 cmd->fs.m_ext.vlan_tci == cpu_to_be16(0xfff)))
1075 return -EINVAL;
1076 if (cmd->fs.m_ext.vlan_tci) {
1077 if (be16_to_cpu(cmd->fs.h_ext.vlan_tci) <
1078 VLAN_MIN_VALUE ||
1079 be16_to_cpu(cmd->fs.h_ext.vlan_tci) >
1080 VLAN_MAX_VALUE)
1081 return -EINVAL;
1082 }
1083 }
1084
1085 return 0;
1086 }
1087
mlx4_en_ethtool_add_mac_rule(struct mlx4_ethtool_rxnfc * cmd,struct list_head * rule_list_h,struct mlx4_spec_list * spec_l2,unsigned char * mac)1088 static int mlx4_en_ethtool_add_mac_rule(struct mlx4_ethtool_rxnfc *cmd,
1089 struct list_head *rule_list_h,
1090 struct mlx4_spec_list *spec_l2,
1091 unsigned char *mac)
1092 {
1093 int err = 0;
1094 __be64 mac_msk = cpu_to_be64(MLX4_MAC_MASK << 16);
1095
1096 spec_l2->id = MLX4_NET_TRANS_RULE_ID_ETH;
1097 memcpy(spec_l2->eth.dst_mac_msk, &mac_msk, ETH_ALEN);
1098 memcpy(spec_l2->eth.dst_mac, mac, ETH_ALEN);
1099
1100 if ((cmd->fs.flow_type & FLOW_EXT) && cmd->fs.m_ext.vlan_tci) {
1101 spec_l2->eth.vlan_id = cmd->fs.h_ext.vlan_tci;
1102 spec_l2->eth.vlan_id_msk = cpu_to_be16(0xfff);
1103 }
1104
1105 list_add_tail(&spec_l2->list, rule_list_h);
1106
1107 return err;
1108 }
1109
mlx4_en_ethtool_add_mac_rule_by_ipv4(struct mlx4_en_priv * priv,struct mlx4_ethtool_rxnfc * cmd,struct list_head * rule_list_h,struct mlx4_spec_list * spec_l2,__be32 ipv4_dst)1110 static int mlx4_en_ethtool_add_mac_rule_by_ipv4(struct mlx4_en_priv *priv,
1111 struct mlx4_ethtool_rxnfc *cmd,
1112 struct list_head *rule_list_h,
1113 struct mlx4_spec_list *spec_l2,
1114 __be32 ipv4_dst)
1115 {
1116 unsigned char mac[ETH_ALEN];
1117
1118 if (!ipv4_is_multicast(ipv4_dst)) {
1119 if (cmd->fs.flow_type & FLOW_MAC_EXT)
1120 memcpy(&mac, cmd->fs.h_ext.h_dest, ETH_ALEN);
1121 else
1122 memcpy(&mac, priv->dev->dev_addr, ETH_ALEN);
1123 } else {
1124 ip_eth_mc_map(ipv4_dst, mac);
1125 }
1126
1127 return mlx4_en_ethtool_add_mac_rule(cmd, rule_list_h, spec_l2, &mac[0]);
1128 }
1129
add_ip_rule(struct mlx4_en_priv * priv,struct mlx4_ethtool_rxnfc * cmd,struct list_head * list_h)1130 static int add_ip_rule(struct mlx4_en_priv *priv,
1131 struct mlx4_ethtool_rxnfc *cmd,
1132 struct list_head *list_h)
1133 {
1134 struct mlx4_spec_list *spec_l2 = NULL;
1135 struct mlx4_spec_list *spec_l3 = NULL;
1136 struct ethtool_usrip4_spec *l3_mask = &cmd->fs.m_u.usr_ip4_spec;
1137
1138 spec_l3 = kzalloc(sizeof(*spec_l3), GFP_KERNEL);
1139 spec_l2 = kzalloc(sizeof(*spec_l2), GFP_KERNEL);
1140 if (!spec_l2 || !spec_l3) {
1141 en_err(priv, "Fail to alloc ethtool rule.\n");
1142 kfree(spec_l2);
1143 kfree(spec_l3);
1144 return -ENOMEM;
1145 }
1146
1147 mlx4_en_ethtool_add_mac_rule_by_ipv4(priv, cmd, list_h, spec_l2,
1148 cmd->fs.h_u.
1149 usr_ip4_spec.ip4dst);
1150 spec_l3->id = MLX4_NET_TRANS_RULE_ID_IPV4;
1151 spec_l3->ipv4.src_ip = cmd->fs.h_u.usr_ip4_spec.ip4src;
1152 if (l3_mask->ip4src)
1153 spec_l3->ipv4.src_ip_msk = MLX4_BE_WORD_MASK;
1154 spec_l3->ipv4.dst_ip = cmd->fs.h_u.usr_ip4_spec.ip4dst;
1155 if (l3_mask->ip4dst)
1156 spec_l3->ipv4.dst_ip_msk = MLX4_BE_WORD_MASK;
1157 list_add_tail(&spec_l3->list, list_h);
1158
1159 return 0;
1160 }
1161
add_tcp_udp_rule(struct mlx4_en_priv * priv,struct mlx4_ethtool_rxnfc * cmd,struct list_head * list_h,int proto)1162 static int add_tcp_udp_rule(struct mlx4_en_priv *priv,
1163 struct mlx4_ethtool_rxnfc *cmd,
1164 struct list_head *list_h, int proto)
1165 {
1166 struct mlx4_spec_list *spec_l2 = NULL;
1167 struct mlx4_spec_list *spec_l3 = NULL;
1168 struct mlx4_spec_list *spec_l4 = NULL;
1169 struct ethtool_tcpip4_spec *l4_mask = &cmd->fs.m_u.tcp_ip4_spec;
1170
1171 spec_l2 = kzalloc(sizeof(*spec_l2), GFP_KERNEL);
1172 spec_l3 = kzalloc(sizeof(*spec_l3), GFP_KERNEL);
1173 spec_l4 = kzalloc(sizeof(*spec_l4), GFP_KERNEL);
1174 if (!spec_l2 || !spec_l3 || !spec_l4) {
1175 en_err(priv, "Fail to alloc ethtool rule.\n");
1176 kfree(spec_l2);
1177 kfree(spec_l3);
1178 kfree(spec_l4);
1179 return -ENOMEM;
1180 }
1181
1182 spec_l3->id = MLX4_NET_TRANS_RULE_ID_IPV4;
1183
1184 if (proto == TCP_V4_FLOW) {
1185 mlx4_en_ethtool_add_mac_rule_by_ipv4(priv, cmd, list_h,
1186 spec_l2,
1187 cmd->fs.h_u.
1188 tcp_ip4_spec.ip4dst);
1189 spec_l4->id = MLX4_NET_TRANS_RULE_ID_TCP;
1190 spec_l3->ipv4.src_ip = cmd->fs.h_u.tcp_ip4_spec.ip4src;
1191 spec_l3->ipv4.dst_ip = cmd->fs.h_u.tcp_ip4_spec.ip4dst;
1192 spec_l4->tcp_udp.src_port = cmd->fs.h_u.tcp_ip4_spec.psrc;
1193 spec_l4->tcp_udp.dst_port = cmd->fs.h_u.tcp_ip4_spec.pdst;
1194 } else {
1195 mlx4_en_ethtool_add_mac_rule_by_ipv4(priv, cmd, list_h,
1196 spec_l2,
1197 cmd->fs.h_u.
1198 udp_ip4_spec.ip4dst);
1199 spec_l4->id = MLX4_NET_TRANS_RULE_ID_UDP;
1200 spec_l3->ipv4.src_ip = cmd->fs.h_u.udp_ip4_spec.ip4src;
1201 spec_l3->ipv4.dst_ip = cmd->fs.h_u.udp_ip4_spec.ip4dst;
1202 spec_l4->tcp_udp.src_port = cmd->fs.h_u.udp_ip4_spec.psrc;
1203 spec_l4->tcp_udp.dst_port = cmd->fs.h_u.udp_ip4_spec.pdst;
1204 }
1205
1206 if (l4_mask->ip4src)
1207 spec_l3->ipv4.src_ip_msk = MLX4_BE_WORD_MASK;
1208 if (l4_mask->ip4dst)
1209 spec_l3->ipv4.dst_ip_msk = MLX4_BE_WORD_MASK;
1210
1211 if (l4_mask->psrc)
1212 spec_l4->tcp_udp.src_port_msk = MLX4_BE_SHORT_MASK;
1213 if (l4_mask->pdst)
1214 spec_l4->tcp_udp.dst_port_msk = MLX4_BE_SHORT_MASK;
1215
1216 list_add_tail(&spec_l3->list, list_h);
1217 list_add_tail(&spec_l4->list, list_h);
1218
1219 return 0;
1220 }
1221
mlx4_en_ethtool_to_net_trans_rule(struct net_device * dev,struct mlx4_ethtool_rxnfc * cmd,struct list_head * rule_list_h)1222 static int mlx4_en_ethtool_to_net_trans_rule(struct net_device *dev,
1223 struct mlx4_ethtool_rxnfc *cmd,
1224 struct list_head *rule_list_h)
1225 {
1226 int err;
1227 struct ethhdr *eth_spec;
1228 struct mlx4_spec_list *spec_l2;
1229 struct mlx4_en_priv *priv = netdev_priv(dev);
1230
1231 err = mlx4_en_validate_flow(dev, cmd);
1232 if (err)
1233 return err;
1234
1235 switch (cmd->fs.flow_type & ~(FLOW_EXT | FLOW_MAC_EXT)) {
1236 case ETHER_FLOW:
1237 spec_l2 = kzalloc(sizeof(*spec_l2), GFP_KERNEL);
1238 if (!spec_l2)
1239 return -ENOMEM;
1240
1241 eth_spec = &cmd->fs.h_u.ether_spec;
1242 mlx4_en_ethtool_add_mac_rule(cmd, rule_list_h, spec_l2, ð_spec->h_dest[0]);
1243 spec_l2->eth.ether_type = eth_spec->h_proto;
1244 if (eth_spec->h_proto)
1245 spec_l2->eth.ether_type_enable = 1;
1246 break;
1247 case IP_USER_FLOW:
1248 err = add_ip_rule(priv, cmd, rule_list_h);
1249 break;
1250 case TCP_V4_FLOW:
1251 err = add_tcp_udp_rule(priv, cmd, rule_list_h, TCP_V4_FLOW);
1252 break;
1253 case UDP_V4_FLOW:
1254 err = add_tcp_udp_rule(priv, cmd, rule_list_h, UDP_V4_FLOW);
1255 break;
1256 }
1257
1258 return err;
1259 }
1260
mlx4_en_flow_replace(struct net_device * dev,struct mlx4_ethtool_rxnfc * cmd)1261 static int mlx4_en_flow_replace(struct net_device *dev,
1262 struct mlx4_ethtool_rxnfc *cmd)
1263 {
1264 int err;
1265 struct mlx4_en_priv *priv = netdev_priv(dev);
1266 struct mlx4_en_dev *mdev = priv->mdev;
1267 struct ethtool_flow_id *loc_rule;
1268 struct mlx4_spec_list *spec, *tmp_spec;
1269 u32 qpn;
1270 u64 reg_id;
1271
1272 struct mlx4_net_trans_rule rule = {
1273 .queue_mode = MLX4_NET_TRANS_Q_FIFO,
1274 .exclusive = 0,
1275 .allow_loopback = 1,
1276 .promisc_mode = MLX4_FS_REGULAR,
1277 };
1278
1279 rule.port = priv->port;
1280 rule.priority = MLX4_DOMAIN_ETHTOOL | cmd->fs.location;
1281 INIT_LIST_HEAD(&rule.list);
1282
1283 /* Allow direct QP attaches if the EN_ETHTOOL_QP_ATTACH flag is set */
1284 if (cmd->fs.ring_cookie == RX_CLS_FLOW_DISC)
1285 qpn = priv->drop_qp.qpn;
1286 else if (cmd->fs.ring_cookie & EN_ETHTOOL_QP_ATTACH) {
1287 qpn = cmd->fs.ring_cookie & (EN_ETHTOOL_QP_ATTACH - 1);
1288 } else {
1289 if (cmd->fs.ring_cookie >= priv->rx_ring_num) {
1290 en_warn(priv, "rxnfc: RX ring (%llu) doesn't exist.\n",
1291 cmd->fs.ring_cookie);
1292 return -EINVAL;
1293 }
1294 qpn = priv->rss_map.qps[cmd->fs.ring_cookie].qpn;
1295 if (!qpn) {
1296 en_warn(priv, "rxnfc: RX ring (%llu) is inactive.\n",
1297 cmd->fs.ring_cookie);
1298 return -EINVAL;
1299 }
1300 }
1301 rule.qpn = qpn;
1302 err = mlx4_en_ethtool_to_net_trans_rule(dev, cmd, &rule.list);
1303 if (err)
1304 goto out_free_list;
1305
1306 mutex_lock(&mdev->state_lock);
1307 loc_rule = &priv->ethtool_rules[cmd->fs.location];
1308 if (loc_rule->id) {
1309 err = mlx4_flow_detach(priv->mdev->dev, loc_rule->id);
1310 if (err) {
1311 en_err(priv, "Fail to detach network rule at location %d. registration id = %llx\n",
1312 cmd->fs.location, loc_rule->id);
1313 goto unlock;
1314 }
1315 loc_rule->id = 0;
1316 memset(&loc_rule->flow_spec, 0,
1317 sizeof(struct ethtool_rx_flow_spec));
1318 list_del(&loc_rule->list);
1319 }
1320 err = mlx4_flow_attach(priv->mdev->dev, &rule, ®_id);
1321 if (err) {
1322 en_err(priv, "Fail to attach network rule at location %d.\n",
1323 cmd->fs.location);
1324 goto unlock;
1325 }
1326 loc_rule->id = reg_id;
1327 memcpy(&loc_rule->flow_spec, &cmd->fs,
1328 sizeof(struct ethtool_rx_flow_spec));
1329 list_add_tail(&loc_rule->list, &priv->ethtool_list);
1330
1331 unlock:
1332 mutex_unlock(&mdev->state_lock);
1333 out_free_list:
1334 list_for_each_entry_safe(spec, tmp_spec, &rule.list, list) {
1335 list_del(&spec->list);
1336 kfree(spec);
1337 }
1338 return err;
1339 }
1340
mlx4_en_flow_detach(struct net_device * dev,struct mlx4_ethtool_rxnfc * cmd)1341 static int mlx4_en_flow_detach(struct net_device *dev,
1342 struct mlx4_ethtool_rxnfc *cmd)
1343 {
1344 int err = 0;
1345 struct ethtool_flow_id *rule;
1346 struct mlx4_en_priv *priv = netdev_priv(dev);
1347 struct mlx4_en_dev *mdev = priv->mdev;
1348
1349 if (cmd->fs.location >= MAX_NUM_OF_FS_RULES)
1350 return -EINVAL;
1351
1352 mutex_lock(&mdev->state_lock);
1353 rule = &priv->ethtool_rules[cmd->fs.location];
1354 if (!rule->id) {
1355 err = -ENOENT;
1356 goto out;
1357 }
1358
1359 err = mlx4_flow_detach(priv->mdev->dev, rule->id);
1360 if (err) {
1361 en_err(priv, "Fail to detach network rule at location %d. registration id = 0x%llx\n",
1362 cmd->fs.location, rule->id);
1363 goto out;
1364 }
1365 rule->id = 0;
1366 memset(&rule->flow_spec, 0, sizeof(struct ethtool_rx_flow_spec));
1367
1368 list_del(&rule->list);
1369 out:
1370 mutex_unlock(&mdev->state_lock);
1371 return err;
1372
1373 }
1374
mlx4_en_get_flow(struct net_device * dev,struct mlx4_ethtool_rxnfc * cmd,int loc)1375 static int mlx4_en_get_flow(struct net_device *dev, struct mlx4_ethtool_rxnfc *cmd,
1376 int loc)
1377 {
1378 int err = 0;
1379 struct ethtool_flow_id *rule;
1380 struct mlx4_en_priv *priv = netdev_priv(dev);
1381
1382 if (loc < 0 || loc >= MAX_NUM_OF_FS_RULES)
1383 return -EINVAL;
1384
1385 rule = &priv->ethtool_rules[loc];
1386 if (rule->id)
1387 memcpy(&cmd->fs, &rule->flow_spec,
1388 sizeof(struct ethtool_rx_flow_spec));
1389 else
1390 err = -ENOENT;
1391
1392 return err;
1393 }
1394
mlx4_en_get_num_flows(struct mlx4_en_priv * priv)1395 static int mlx4_en_get_num_flows(struct mlx4_en_priv *priv)
1396 {
1397
1398 int i, res = 0;
1399 for (i = 0; i < MAX_NUM_OF_FS_RULES; i++) {
1400 if (priv->ethtool_rules[i].id)
1401 res++;
1402 }
1403 return res;
1404
1405 }
1406
mlx4_en_get_rxnfc(struct net_device * dev,struct ethtool_rxnfc * c,u32 * rule_locs)1407 static int mlx4_en_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *c,
1408 u32 *rule_locs)
1409 {
1410 struct mlx4_en_priv *priv = netdev_priv(dev);
1411 struct mlx4_en_dev *mdev = priv->mdev;
1412 int err = 0;
1413 int i = 0, priority = 0;
1414 struct mlx4_ethtool_rxnfc *cmd = (struct mlx4_ethtool_rxnfc *)c;
1415
1416 if ((cmd->cmd == ETHTOOL_GRXCLSRLCNT ||
1417 cmd->cmd == ETHTOOL_GRXCLSRULE ||
1418 cmd->cmd == ETHTOOL_GRXCLSRLALL) &&
1419 (mdev->dev->caps.steering_mode !=
1420 MLX4_STEERING_MODE_DEVICE_MANAGED || !priv->port_up))
1421 return -EINVAL;
1422
1423 switch (cmd->cmd) {
1424 case ETHTOOL_GRXRINGS:
1425 cmd->data = priv->rx_ring_num;
1426 break;
1427 case ETHTOOL_GRXCLSRLCNT:
1428 cmd->rule_cnt = mlx4_en_get_num_flows(priv);
1429 break;
1430 case ETHTOOL_GRXCLSRULE:
1431 err = mlx4_en_get_flow(dev, cmd, cmd->fs.location);
1432 break;
1433 case ETHTOOL_GRXCLSRLALL:
1434 while ((!err || err == -ENOENT) && priority < cmd->rule_cnt) {
1435 err = mlx4_en_get_flow(dev, cmd, i);
1436 if (!err)
1437 rule_locs[priority++] = i;
1438 i++;
1439 }
1440 err = 0;
1441 break;
1442 default:
1443 err = -EOPNOTSUPP;
1444 break;
1445 }
1446
1447 return err;
1448 }
1449
mlx4_en_set_rxnfc(struct net_device * dev,struct ethtool_rxnfc * c)1450 static int mlx4_en_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *c)
1451 {
1452 int err = 0;
1453 struct mlx4_en_priv *priv = netdev_priv(dev);
1454 struct mlx4_en_dev *mdev = priv->mdev;
1455 struct mlx4_ethtool_rxnfc *cmd = (struct mlx4_ethtool_rxnfc *)c;
1456
1457 if (mdev->dev->caps.steering_mode !=
1458 MLX4_STEERING_MODE_DEVICE_MANAGED || !priv->port_up)
1459 return -EINVAL;
1460
1461 switch (cmd->cmd) {
1462 case ETHTOOL_SRXCLSRLINS:
1463 err = mlx4_en_flow_replace(dev, cmd);
1464 break;
1465 case ETHTOOL_SRXCLSRLDEL:
1466 err = mlx4_en_flow_detach(dev, cmd);
1467 break;
1468 default:
1469 en_warn(priv, "Unsupported ethtool command. (%d)\n", cmd->cmd);
1470 return -EINVAL;
1471 }
1472
1473 return err;
1474 }
1475
mlx4_en_get_channels(struct net_device * dev,struct ethtool_channels * channel)1476 static void mlx4_en_get_channels(struct net_device *dev,
1477 struct ethtool_channels *channel)
1478 {
1479 struct mlx4_en_priv *priv = netdev_priv(dev);
1480
1481 memset(channel, 0, sizeof(*channel));
1482
1483 channel->max_rx = MAX_RX_RINGS;
1484 channel->max_tx = MLX4_EN_MAX_TX_RING_P_UP;
1485
1486 channel->rx_count = priv->rx_ring_num;
1487 channel->tx_count = priv->tx_ring_num / MLX4_EN_NUM_UP;
1488 }
1489
mlx4_en_set_channels(struct net_device * dev,struct ethtool_channels * channel)1490 static int mlx4_en_set_channels(struct net_device *dev,
1491 struct ethtool_channels *channel)
1492 {
1493 struct mlx4_en_priv *priv = netdev_priv(dev);
1494 struct mlx4_en_dev *mdev = priv->mdev;
1495 int port_up = 0;
1496 int i;
1497 int err = 0;
1498
1499 if (channel->other_count || channel->combined_count ||
1500 channel->tx_count > MLX4_EN_MAX_TX_RING_P_UP ||
1501 channel->rx_count > MAX_RX_RINGS ||
1502 !channel->tx_count || !channel->rx_count)
1503 return -EINVAL;
1504
1505 err = mlx4_en_pre_config(priv);
1506 if (err)
1507 return err;
1508
1509 mutex_lock(&mdev->state_lock);
1510 if (priv->port_up) {
1511 port_up = 1;
1512 mlx4_en_stop_port(dev);
1513 }
1514
1515 mlx4_en_free_resources(priv);
1516
1517 priv->num_tx_rings_p_up = channel->tx_count;
1518 priv->tx_ring_num = channel->tx_count * MLX4_EN_NUM_UP;
1519 priv->rx_ring_num = channel->rx_count;
1520
1521 err = mlx4_en_alloc_resources(priv);
1522 if (err) {
1523 en_err(priv, "Failed reallocating port resources\n");
1524 goto out;
1525 }
1526
1527 netif_set_real_num_tx_queues(dev, priv->tx_ring_num);
1528 netif_set_real_num_rx_queues(dev, priv->rx_ring_num);
1529
1530 mlx4_en_setup_tc(dev, MLX4_EN_NUM_UP);
1531
1532 en_warn(priv, "Using %d TX rings\n", priv->tx_ring_num);
1533 en_warn(priv, "Using %d RX rings\n", priv->rx_ring_num);
1534
1535 if (port_up) {
1536 err = mlx4_en_start_port(dev);
1537 if (err)
1538 en_err(priv, "Failed starting port\n");
1539
1540 for (i = 0; i < priv->rx_ring_num; i++) {
1541 priv->rx_cq[i]->moder_cnt = priv->rx_frames;
1542 priv->rx_cq[i]->moder_time = priv->rx_usecs;
1543 priv->last_moder_time[i] = MLX4_EN_AUTO_CONF;
1544 err = mlx4_en_set_cq_moder(priv, priv->rx_cq[i]);
1545 if (err)
1546 goto out;
1547 }
1548 }
1549
1550 out:
1551 mutex_unlock(&mdev->state_lock);
1552 return err;
1553 }
1554
mlx4_en_get_ts_info(struct net_device * dev,struct ethtool_ts_info * info)1555 static int mlx4_en_get_ts_info(struct net_device *dev,
1556 struct ethtool_ts_info *info)
1557 {
1558 struct mlx4_en_priv *priv = netdev_priv(dev);
1559 struct mlx4_en_dev *mdev = priv->mdev;
1560 int ret;
1561
1562 ret = ethtool_op_get_ts_info(dev, info);
1563 if (ret)
1564 return ret;
1565
1566 if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_TS) {
1567 info->so_timestamping |=
1568 SOF_TIMESTAMPING_TX_HARDWARE |
1569 SOF_TIMESTAMPING_RX_HARDWARE |
1570 SOF_TIMESTAMPING_RAW_HARDWARE;
1571
1572 info->tx_types =
1573 (1 << HWTSTAMP_TX_OFF) |
1574 (1 << HWTSTAMP_TX_ON);
1575
1576 info->rx_filters =
1577 (1 << HWTSTAMP_FILTER_NONE) |
1578 (1 << HWTSTAMP_FILTER_ALL);
1579 }
1580
1581 return ret;
1582 }
1583
1584 const struct ethtool_ops mlx4_en_ethtool_ops = {
1585 .get_drvinfo = mlx4_en_get_drvinfo,
1586 .get_settings = mlx4_en_get_settings,
1587 .set_settings = mlx4_en_set_settings,
1588 .get_link = ethtool_op_get_link,
1589 .get_strings = mlx4_en_get_strings,
1590 .get_sset_count = mlx4_en_get_sset_count,
1591 .get_ethtool_stats = mlx4_en_get_ethtool_stats,
1592 .self_test = mlx4_en_self_test,
1593 .get_wol = mlx4_en_get_wol,
1594 .set_wol = mlx4_en_set_wol,
1595 .get_msglevel = mlx4_en_get_msglevel,
1596 .set_msglevel = mlx4_en_set_msglevel,
1597 .get_coalesce = mlx4_en_get_coalesce,
1598 .set_coalesce = mlx4_en_set_coalesce,
1599 .get_pauseparam = mlx4_en_get_pauseparam,
1600 .set_pauseparam = mlx4_en_set_pauseparam,
1601 .get_ringparam = mlx4_en_get_ringparam,
1602 .set_ringparam = mlx4_en_set_ringparam,
1603 .get_rxnfc = mlx4_en_get_rxnfc,
1604 .set_rxnfc = mlx4_en_set_rxnfc,
1605 .get_rxfh_indir_size = mlx4_en_get_rxfh_indir_size,
1606 .get_rxfh_indir = mlx4_en_get_rxfh_indir,
1607 .set_rxfh_indir = mlx4_en_set_rxfh_indir,
1608 .get_channels = mlx4_en_get_channels,
1609 .set_channels = mlx4_en_set_channels,
1610 .get_ts_info = mlx4_en_get_ts_info,
1611 };
1612
1613
1614
1615
1616
1617