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Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
[mirror_ubuntu-artful-kernel.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 #include <linux/mlx4/device.h>
39 #include <linux/in.h>
40 #include <net/ip.h>
41 #include <linux/bitmap.h>
42
43 #include "mlx4_en.h"
44 #include "en_port.h"
45
46 #define EN_ETHTOOL_QP_ATTACH (1ull << 63)
47 #define EN_ETHTOOL_SHORT_MASK cpu_to_be16(0xffff)
48 #define EN_ETHTOOL_WORD_MASK cpu_to_be32(0xffffffff)
49
50 static int mlx4_en_moderation_update(struct mlx4_en_priv *priv)
51 {
52 int i;
53 int err = 0;
54
55 for (i = 0; i < priv->tx_ring_num; i++) {
56 priv->tx_cq[i]->moder_cnt = priv->tx_frames;
57 priv->tx_cq[i]->moder_time = priv->tx_usecs;
58 if (priv->port_up) {
59 err = mlx4_en_set_cq_moder(priv, priv->tx_cq[i]);
60 if (err)
61 return err;
62 }
63 }
64
65 if (priv->adaptive_rx_coal)
66 return 0;
67
68 for (i = 0; i < priv->rx_ring_num; i++) {
69 priv->rx_cq[i]->moder_cnt = priv->rx_frames;
70 priv->rx_cq[i]->moder_time = priv->rx_usecs;
71 priv->last_moder_time[i] = MLX4_EN_AUTO_CONF;
72 if (priv->port_up) {
73 err = mlx4_en_set_cq_moder(priv, priv->rx_cq[i]);
74 if (err)
75 return err;
76 }
77 }
78
79 return err;
80 }
81
82 static void
83 mlx4_en_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *drvinfo)
84 {
85 struct mlx4_en_priv *priv = netdev_priv(dev);
86 struct mlx4_en_dev *mdev = priv->mdev;
87
88 strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver));
89 strlcpy(drvinfo->version, DRV_VERSION " (" DRV_RELDATE ")",
90 sizeof(drvinfo->version));
91 snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
92 "%d.%d.%d",
93 (u16) (mdev->dev->caps.fw_ver >> 32),
94 (u16) ((mdev->dev->caps.fw_ver >> 16) & 0xffff),
95 (u16) (mdev->dev->caps.fw_ver & 0xffff));
96 strlcpy(drvinfo->bus_info, pci_name(mdev->dev->persist->pdev),
97 sizeof(drvinfo->bus_info));
98 }
99
100 static const char mlx4_en_priv_flags[][ETH_GSTRING_LEN] = {
101 "blueflame",
102 "phv-bit"
103 };
104
105 static const char main_strings[][ETH_GSTRING_LEN] = {
106 /* main statistics */
107 "rx_packets", "tx_packets", "rx_bytes", "tx_bytes", "rx_errors",
108 "tx_errors", "rx_dropped", "tx_dropped", "multicast", "collisions",
109 "rx_length_errors", "rx_over_errors", "rx_crc_errors",
110 "rx_frame_errors", "rx_fifo_errors", "rx_missed_errors",
111 "tx_aborted_errors", "tx_carrier_errors", "tx_fifo_errors",
112 "tx_heartbeat_errors", "tx_window_errors",
113
114 /* port statistics */
115 "tso_packets",
116 "xmit_more",
117 "queue_stopped", "wake_queue", "tx_timeout", "rx_alloc_failed",
118 "rx_csum_good", "rx_csum_none", "rx_csum_complete", "tx_chksum_offload",
119
120 /* pf statistics */
121 "pf_rx_packets",
122 "pf_rx_bytes",
123 "pf_tx_packets",
124 "pf_tx_bytes",
125
126 /* priority flow control statistics rx */
127 "rx_pause_prio_0", "rx_pause_duration_prio_0",
128 "rx_pause_transition_prio_0",
129 "rx_pause_prio_1", "rx_pause_duration_prio_1",
130 "rx_pause_transition_prio_1",
131 "rx_pause_prio_2", "rx_pause_duration_prio_2",
132 "rx_pause_transition_prio_2",
133 "rx_pause_prio_3", "rx_pause_duration_prio_3",
134 "rx_pause_transition_prio_3",
135 "rx_pause_prio_4", "rx_pause_duration_prio_4",
136 "rx_pause_transition_prio_4",
137 "rx_pause_prio_5", "rx_pause_duration_prio_5",
138 "rx_pause_transition_prio_5",
139 "rx_pause_prio_6", "rx_pause_duration_prio_6",
140 "rx_pause_transition_prio_6",
141 "rx_pause_prio_7", "rx_pause_duration_prio_7",
142 "rx_pause_transition_prio_7",
143
144 /* flow control statistics rx */
145 "rx_pause", "rx_pause_duration", "rx_pause_transition",
146
147 /* priority flow control statistics tx */
148 "tx_pause_prio_0", "tx_pause_duration_prio_0",
149 "tx_pause_transition_prio_0",
150 "tx_pause_prio_1", "tx_pause_duration_prio_1",
151 "tx_pause_transition_prio_1",
152 "tx_pause_prio_2", "tx_pause_duration_prio_2",
153 "tx_pause_transition_prio_2",
154 "tx_pause_prio_3", "tx_pause_duration_prio_3",
155 "tx_pause_transition_prio_3",
156 "tx_pause_prio_4", "tx_pause_duration_prio_4",
157 "tx_pause_transition_prio_4",
158 "tx_pause_prio_5", "tx_pause_duration_prio_5",
159 "tx_pause_transition_prio_5",
160 "tx_pause_prio_6", "tx_pause_duration_prio_6",
161 "tx_pause_transition_prio_6",
162 "tx_pause_prio_7", "tx_pause_duration_prio_7",
163 "tx_pause_transition_prio_7",
164
165 /* flow control statistics tx */
166 "tx_pause", "tx_pause_duration", "tx_pause_transition",
167
168 /* packet statistics */
169 "rx_multicast_packets",
170 "rx_broadcast_packets",
171 "rx_jabbers",
172 "rx_in_range_length_error",
173 "rx_out_range_length_error",
174 "tx_multicast_packets",
175 "tx_broadcast_packets",
176 "rx_prio_0_packets", "rx_prio_0_bytes",
177 "rx_prio_1_packets", "rx_prio_1_bytes",
178 "rx_prio_2_packets", "rx_prio_2_bytes",
179 "rx_prio_3_packets", "rx_prio_3_bytes",
180 "rx_prio_4_packets", "rx_prio_4_bytes",
181 "rx_prio_5_packets", "rx_prio_5_bytes",
182 "rx_prio_6_packets", "rx_prio_6_bytes",
183 "rx_prio_7_packets", "rx_prio_7_bytes",
184 "rx_novlan_packets", "rx_novlan_bytes",
185 "tx_prio_0_packets", "tx_prio_0_bytes",
186 "tx_prio_1_packets", "tx_prio_1_bytes",
187 "tx_prio_2_packets", "tx_prio_2_bytes",
188 "tx_prio_3_packets", "tx_prio_3_bytes",
189 "tx_prio_4_packets", "tx_prio_4_bytes",
190 "tx_prio_5_packets", "tx_prio_5_bytes",
191 "tx_prio_6_packets", "tx_prio_6_bytes",
192 "tx_prio_7_packets", "tx_prio_7_bytes",
193 "tx_novlan_packets", "tx_novlan_bytes",
194
195 };
196
197 static const char mlx4_en_test_names[][ETH_GSTRING_LEN]= {
198 "Interrupt Test",
199 "Link Test",
200 "Speed Test",
201 "Register Test",
202 "Loopback Test",
203 };
204
205 static u32 mlx4_en_get_msglevel(struct net_device *dev)
206 {
207 return ((struct mlx4_en_priv *) netdev_priv(dev))->msg_enable;
208 }
209
210 static void mlx4_en_set_msglevel(struct net_device *dev, u32 val)
211 {
212 ((struct mlx4_en_priv *) netdev_priv(dev))->msg_enable = val;
213 }
214
215 static void mlx4_en_get_wol(struct net_device *netdev,
216 struct ethtool_wolinfo *wol)
217 {
218 struct mlx4_en_priv *priv = netdev_priv(netdev);
219 int err = 0;
220 u64 config = 0;
221 u64 mask;
222
223 if ((priv->port < 1) || (priv->port > 2)) {
224 en_err(priv, "Failed to get WoL information\n");
225 return;
226 }
227
228 mask = (priv->port == 1) ? MLX4_DEV_CAP_FLAG_WOL_PORT1 :
229 MLX4_DEV_CAP_FLAG_WOL_PORT2;
230
231 if (!(priv->mdev->dev->caps.flags & mask)) {
232 wol->supported = 0;
233 wol->wolopts = 0;
234 return;
235 }
236
237 err = mlx4_wol_read(priv->mdev->dev, &config, priv->port);
238 if (err) {
239 en_err(priv, "Failed to get WoL information\n");
240 return;
241 }
242
243 if (config & MLX4_EN_WOL_MAGIC)
244 wol->supported = WAKE_MAGIC;
245 else
246 wol->supported = 0;
247
248 if (config & MLX4_EN_WOL_ENABLED)
249 wol->wolopts = WAKE_MAGIC;
250 else
251 wol->wolopts = 0;
252 }
253
254 static int mlx4_en_set_wol(struct net_device *netdev,
255 struct ethtool_wolinfo *wol)
256 {
257 struct mlx4_en_priv *priv = netdev_priv(netdev);
258 u64 config = 0;
259 int err = 0;
260 u64 mask;
261
262 if ((priv->port < 1) || (priv->port > 2))
263 return -EOPNOTSUPP;
264
265 mask = (priv->port == 1) ? MLX4_DEV_CAP_FLAG_WOL_PORT1 :
266 MLX4_DEV_CAP_FLAG_WOL_PORT2;
267
268 if (!(priv->mdev->dev->caps.flags & mask))
269 return -EOPNOTSUPP;
270
271 if (wol->supported & ~WAKE_MAGIC)
272 return -EINVAL;
273
274 err = mlx4_wol_read(priv->mdev->dev, &config, priv->port);
275 if (err) {
276 en_err(priv, "Failed to get WoL info, unable to modify\n");
277 return err;
278 }
279
280 if (wol->wolopts & WAKE_MAGIC) {
281 config |= MLX4_EN_WOL_DO_MODIFY | MLX4_EN_WOL_ENABLED |
282 MLX4_EN_WOL_MAGIC;
283 } else {
284 config &= ~(MLX4_EN_WOL_ENABLED | MLX4_EN_WOL_MAGIC);
285 config |= MLX4_EN_WOL_DO_MODIFY;
286 }
287
288 err = mlx4_wol_write(priv->mdev->dev, config, priv->port);
289 if (err)
290 en_err(priv, "Failed to set WoL information\n");
291
292 return err;
293 }
294
295 struct bitmap_iterator {
296 unsigned long *stats_bitmap;
297 unsigned int count;
298 unsigned int iterator;
299 bool advance_array; /* if set, force no increments */
300 };
301
302 static inline void bitmap_iterator_init(struct bitmap_iterator *h,
303 unsigned long *stats_bitmap,
304 int count)
305 {
306 h->iterator = 0;
307 h->advance_array = !bitmap_empty(stats_bitmap, count);
308 h->count = h->advance_array ? bitmap_weight(stats_bitmap, count)
309 : count;
310 h->stats_bitmap = stats_bitmap;
311 }
312
313 static inline int bitmap_iterator_test(struct bitmap_iterator *h)
314 {
315 return !h->advance_array ? 1 : test_bit(h->iterator, h->stats_bitmap);
316 }
317
318 static inline int bitmap_iterator_inc(struct bitmap_iterator *h)
319 {
320 return h->iterator++;
321 }
322
323 static inline unsigned int
324 bitmap_iterator_count(struct bitmap_iterator *h)
325 {
326 return h->count;
327 }
328
329 static int mlx4_en_get_sset_count(struct net_device *dev, int sset)
330 {
331 struct mlx4_en_priv *priv = netdev_priv(dev);
332 struct bitmap_iterator it;
333
334 bitmap_iterator_init(&it, priv->stats_bitmap.bitmap, NUM_ALL_STATS);
335
336 switch (sset) {
337 case ETH_SS_STATS:
338 return bitmap_iterator_count(&it) +
339 (priv->tx_ring_num * 2) +
340 (priv->rx_ring_num * 3);
341 case ETH_SS_TEST:
342 return MLX4_EN_NUM_SELF_TEST - !(priv->mdev->dev->caps.flags
343 & MLX4_DEV_CAP_FLAG_UC_LOOPBACK) * 2;
344 case ETH_SS_PRIV_FLAGS:
345 return ARRAY_SIZE(mlx4_en_priv_flags);
346 default:
347 return -EOPNOTSUPP;
348 }
349 }
350
351 static void mlx4_en_get_ethtool_stats(struct net_device *dev,
352 struct ethtool_stats *stats, uint64_t *data)
353 {
354 struct mlx4_en_priv *priv = netdev_priv(dev);
355 int index = 0;
356 int i;
357 struct bitmap_iterator it;
358
359 bitmap_iterator_init(&it, priv->stats_bitmap.bitmap, NUM_ALL_STATS);
360
361 spin_lock_bh(&priv->stats_lock);
362
363 for (i = 0; i < NUM_MAIN_STATS; i++, bitmap_iterator_inc(&it))
364 if (bitmap_iterator_test(&it))
365 data[index++] = ((unsigned long *)&dev->stats)[i];
366
367 for (i = 0; i < NUM_PORT_STATS; i++, bitmap_iterator_inc(&it))
368 if (bitmap_iterator_test(&it))
369 data[index++] = ((unsigned long *)&priv->port_stats)[i];
370
371 for (i = 0; i < NUM_PF_STATS; i++, bitmap_iterator_inc(&it))
372 if (bitmap_iterator_test(&it))
373 data[index++] =
374 ((unsigned long *)&priv->pf_stats)[i];
375
376 for (i = 0; i < NUM_FLOW_PRIORITY_STATS_RX;
377 i++, bitmap_iterator_inc(&it))
378 if (bitmap_iterator_test(&it))
379 data[index++] =
380 ((u64 *)&priv->rx_priority_flowstats)[i];
381
382 for (i = 0; i < NUM_FLOW_STATS_RX; i++, bitmap_iterator_inc(&it))
383 if (bitmap_iterator_test(&it))
384 data[index++] = ((u64 *)&priv->rx_flowstats)[i];
385
386 for (i = 0; i < NUM_FLOW_PRIORITY_STATS_TX;
387 i++, bitmap_iterator_inc(&it))
388 if (bitmap_iterator_test(&it))
389 data[index++] =
390 ((u64 *)&priv->tx_priority_flowstats)[i];
391
392 for (i = 0; i < NUM_FLOW_STATS_TX; i++, bitmap_iterator_inc(&it))
393 if (bitmap_iterator_test(&it))
394 data[index++] = ((u64 *)&priv->tx_flowstats)[i];
395
396 for (i = 0; i < NUM_PKT_STATS; i++, bitmap_iterator_inc(&it))
397 if (bitmap_iterator_test(&it))
398 data[index++] = ((unsigned long *)&priv->pkstats)[i];
399
400 for (i = 0; i < priv->tx_ring_num; i++) {
401 data[index++] = priv->tx_ring[i]->packets;
402 data[index++] = priv->tx_ring[i]->bytes;
403 }
404 for (i = 0; i < priv->rx_ring_num; i++) {
405 data[index++] = priv->rx_ring[i]->packets;
406 data[index++] = priv->rx_ring[i]->bytes;
407 data[index++] = priv->rx_ring[i]->dropped;
408 }
409 spin_unlock_bh(&priv->stats_lock);
410
411 }
412
413 static void mlx4_en_self_test(struct net_device *dev,
414 struct ethtool_test *etest, u64 *buf)
415 {
416 mlx4_en_ex_selftest(dev, &etest->flags, buf);
417 }
418
419 static void mlx4_en_get_strings(struct net_device *dev,
420 uint32_t stringset, uint8_t *data)
421 {
422 struct mlx4_en_priv *priv = netdev_priv(dev);
423 int index = 0;
424 int i, strings = 0;
425 struct bitmap_iterator it;
426
427 bitmap_iterator_init(&it, priv->stats_bitmap.bitmap, NUM_ALL_STATS);
428
429 switch (stringset) {
430 case ETH_SS_TEST:
431 for (i = 0; i < MLX4_EN_NUM_SELF_TEST - 2; i++)
432 strcpy(data + i * ETH_GSTRING_LEN, mlx4_en_test_names[i]);
433 if (priv->mdev->dev->caps.flags & MLX4_DEV_CAP_FLAG_UC_LOOPBACK)
434 for (; i < MLX4_EN_NUM_SELF_TEST; i++)
435 strcpy(data + i * ETH_GSTRING_LEN, mlx4_en_test_names[i]);
436 break;
437
438 case ETH_SS_STATS:
439 /* Add main counters */
440 for (i = 0; i < NUM_MAIN_STATS; i++, strings++,
441 bitmap_iterator_inc(&it))
442 if (bitmap_iterator_test(&it))
443 strcpy(data + (index++) * ETH_GSTRING_LEN,
444 main_strings[strings]);
445
446 for (i = 0; i < NUM_PORT_STATS; i++, strings++,
447 bitmap_iterator_inc(&it))
448 if (bitmap_iterator_test(&it))
449 strcpy(data + (index++) * ETH_GSTRING_LEN,
450 main_strings[strings]);
451
452 for (i = 0; i < NUM_PF_STATS; i++, strings++,
453 bitmap_iterator_inc(&it))
454 if (bitmap_iterator_test(&it))
455 strcpy(data + (index++) * ETH_GSTRING_LEN,
456 main_strings[strings]);
457
458 for (i = 0; i < NUM_FLOW_STATS; i++, strings++,
459 bitmap_iterator_inc(&it))
460 if (bitmap_iterator_test(&it))
461 strcpy(data + (index++) * ETH_GSTRING_LEN,
462 main_strings[strings]);
463
464 for (i = 0; i < NUM_PKT_STATS; i++, strings++,
465 bitmap_iterator_inc(&it))
466 if (bitmap_iterator_test(&it))
467 strcpy(data + (index++) * ETH_GSTRING_LEN,
468 main_strings[strings]);
469
470 for (i = 0; i < priv->tx_ring_num; i++) {
471 sprintf(data + (index++) * ETH_GSTRING_LEN,
472 "tx%d_packets", i);
473 sprintf(data + (index++) * ETH_GSTRING_LEN,
474 "tx%d_bytes", i);
475 }
476 for (i = 0; i < priv->rx_ring_num; i++) {
477 sprintf(data + (index++) * ETH_GSTRING_LEN,
478 "rx%d_packets", i);
479 sprintf(data + (index++) * ETH_GSTRING_LEN,
480 "rx%d_bytes", i);
481 sprintf(data + (index++) * ETH_GSTRING_LEN,
482 "rx%d_dropped", i);
483 }
484 break;
485 case ETH_SS_PRIV_FLAGS:
486 for (i = 0; i < ARRAY_SIZE(mlx4_en_priv_flags); i++)
487 strcpy(data + i * ETH_GSTRING_LEN,
488 mlx4_en_priv_flags[i]);
489 break;
490
491 }
492 }
493
494 static u32 mlx4_en_autoneg_get(struct net_device *dev)
495 {
496 struct mlx4_en_priv *priv = netdev_priv(dev);
497 struct mlx4_en_dev *mdev = priv->mdev;
498 u32 autoneg = AUTONEG_DISABLE;
499
500 if ((mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ETH_BACKPL_AN_REP) &&
501 (priv->port_state.flags & MLX4_EN_PORT_ANE))
502 autoneg = AUTONEG_ENABLE;
503
504 return autoneg;
505 }
506
507 static void ptys2ethtool_update_supported_port(unsigned long *mask,
508 struct mlx4_ptys_reg *ptys_reg)
509 {
510 u32 eth_proto = be32_to_cpu(ptys_reg->eth_proto_cap);
511
512 if (eth_proto & (MLX4_PROT_MASK(MLX4_10GBASE_T)
513 | MLX4_PROT_MASK(MLX4_1000BASE_T)
514 | MLX4_PROT_MASK(MLX4_100BASE_TX))) {
515 __set_bit(ETHTOOL_LINK_MODE_TP_BIT, mask);
516 } else if (eth_proto & (MLX4_PROT_MASK(MLX4_10GBASE_CR)
517 | MLX4_PROT_MASK(MLX4_10GBASE_SR)
518 | MLX4_PROT_MASK(MLX4_56GBASE_SR4)
519 | MLX4_PROT_MASK(MLX4_40GBASE_CR4)
520 | MLX4_PROT_MASK(MLX4_40GBASE_SR4)
521 | MLX4_PROT_MASK(MLX4_1000BASE_CX_SGMII))) {
522 __set_bit(ETHTOOL_LINK_MODE_FIBRE_BIT, mask);
523 } else if (eth_proto & (MLX4_PROT_MASK(MLX4_56GBASE_KR4)
524 | MLX4_PROT_MASK(MLX4_40GBASE_KR4)
525 | MLX4_PROT_MASK(MLX4_20GBASE_KR2)
526 | MLX4_PROT_MASK(MLX4_10GBASE_KR)
527 | MLX4_PROT_MASK(MLX4_10GBASE_KX4)
528 | MLX4_PROT_MASK(MLX4_1000BASE_KX))) {
529 __set_bit(ETHTOOL_LINK_MODE_Backplane_BIT, mask);
530 }
531 }
532
533 static u32 ptys_get_active_port(struct mlx4_ptys_reg *ptys_reg)
534 {
535 u32 eth_proto = be32_to_cpu(ptys_reg->eth_proto_oper);
536
537 if (!eth_proto) /* link down */
538 eth_proto = be32_to_cpu(ptys_reg->eth_proto_cap);
539
540 if (eth_proto & (MLX4_PROT_MASK(MLX4_10GBASE_T)
541 | MLX4_PROT_MASK(MLX4_1000BASE_T)
542 | MLX4_PROT_MASK(MLX4_100BASE_TX))) {
543 return PORT_TP;
544 }
545
546 if (eth_proto & (MLX4_PROT_MASK(MLX4_10GBASE_SR)
547 | MLX4_PROT_MASK(MLX4_56GBASE_SR4)
548 | MLX4_PROT_MASK(MLX4_40GBASE_SR4)
549 | MLX4_PROT_MASK(MLX4_1000BASE_CX_SGMII))) {
550 return PORT_FIBRE;
551 }
552
553 if (eth_proto & (MLX4_PROT_MASK(MLX4_10GBASE_CR)
554 | MLX4_PROT_MASK(MLX4_56GBASE_CR4)
555 | MLX4_PROT_MASK(MLX4_40GBASE_CR4))) {
556 return PORT_DA;
557 }
558
559 if (eth_proto & (MLX4_PROT_MASK(MLX4_56GBASE_KR4)
560 | MLX4_PROT_MASK(MLX4_40GBASE_KR4)
561 | MLX4_PROT_MASK(MLX4_20GBASE_KR2)
562 | MLX4_PROT_MASK(MLX4_10GBASE_KR)
563 | MLX4_PROT_MASK(MLX4_10GBASE_KX4)
564 | MLX4_PROT_MASK(MLX4_1000BASE_KX))) {
565 return PORT_NONE;
566 }
567 return PORT_OTHER;
568 }
569
570 #define MLX4_LINK_MODES_SZ \
571 (FIELD_SIZEOF(struct mlx4_ptys_reg, eth_proto_cap) * 8)
572
573 enum ethtool_report {
574 SUPPORTED = 0,
575 ADVERTISED = 1,
576 };
577
578 struct ptys2ethtool_config {
579 __ETHTOOL_DECLARE_LINK_MODE_MASK(supported);
580 __ETHTOOL_DECLARE_LINK_MODE_MASK(advertised);
581 u32 speed;
582 };
583
584 static unsigned long *ptys2ethtool_link_mode(struct ptys2ethtool_config *cfg,
585 enum ethtool_report report)
586 {
587 switch (report) {
588 case SUPPORTED:
589 return cfg->supported;
590 case ADVERTISED:
591 return cfg->advertised;
592 }
593 return NULL;
594 }
595
596 #define MLX4_BUILD_PTYS2ETHTOOL_CONFIG(reg_, speed_, ...) \
597 ({ \
598 struct ptys2ethtool_config *cfg; \
599 const unsigned int modes[] = { __VA_ARGS__ }; \
600 unsigned int i; \
601 cfg = &ptys2ethtool_map[reg_]; \
602 cfg->speed = speed_; \
603 bitmap_zero(cfg->supported, \
604 __ETHTOOL_LINK_MODE_MASK_NBITS); \
605 bitmap_zero(cfg->advertised, \
606 __ETHTOOL_LINK_MODE_MASK_NBITS); \
607 for (i = 0 ; i < ARRAY_SIZE(modes) ; ++i) { \
608 __set_bit(modes[i], cfg->supported); \
609 __set_bit(modes[i], cfg->advertised); \
610 } \
611 })
612
613 /* Translates mlx4 link mode to equivalent ethtool Link modes/speed */
614 static struct ptys2ethtool_config ptys2ethtool_map[MLX4_LINK_MODES_SZ];
615
616 void __init mlx4_en_init_ptys2ethtool_map(void)
617 {
618 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_100BASE_TX, SPEED_100,
619 ETHTOOL_LINK_MODE_100baseT_Full_BIT);
620 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_1000BASE_T, SPEED_1000,
621 ETHTOOL_LINK_MODE_1000baseT_Full_BIT);
622 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_1000BASE_CX_SGMII, SPEED_1000,
623 ETHTOOL_LINK_MODE_1000baseKX_Full_BIT);
624 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_1000BASE_KX, SPEED_1000,
625 ETHTOOL_LINK_MODE_1000baseKX_Full_BIT);
626 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_10GBASE_T, SPEED_10000,
627 ETHTOOL_LINK_MODE_10000baseT_Full_BIT);
628 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_10GBASE_CX4, SPEED_10000,
629 ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT);
630 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_10GBASE_KX4, SPEED_10000,
631 ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT);
632 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_10GBASE_KR, SPEED_10000,
633 ETHTOOL_LINK_MODE_10000baseKR_Full_BIT);
634 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_10GBASE_CR, SPEED_10000,
635 ETHTOOL_LINK_MODE_10000baseKR_Full_BIT);
636 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_10GBASE_SR, SPEED_10000,
637 ETHTOOL_LINK_MODE_10000baseKR_Full_BIT);
638 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_20GBASE_KR2, SPEED_20000,
639 ETHTOOL_LINK_MODE_20000baseMLD2_Full_BIT,
640 ETHTOOL_LINK_MODE_20000baseKR2_Full_BIT);
641 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_40GBASE_CR4, SPEED_40000,
642 ETHTOOL_LINK_MODE_40000baseCR4_Full_BIT);
643 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_40GBASE_KR4, SPEED_40000,
644 ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT);
645 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_40GBASE_SR4, SPEED_40000,
646 ETHTOOL_LINK_MODE_40000baseSR4_Full_BIT);
647 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_56GBASE_KR4, SPEED_56000,
648 ETHTOOL_LINK_MODE_56000baseKR4_Full_BIT);
649 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_56GBASE_CR4, SPEED_56000,
650 ETHTOOL_LINK_MODE_56000baseCR4_Full_BIT);
651 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_56GBASE_SR4, SPEED_56000,
652 ETHTOOL_LINK_MODE_56000baseSR4_Full_BIT);
653 };
654
655 static void ptys2ethtool_update_link_modes(unsigned long *link_modes,
656 u32 eth_proto,
657 enum ethtool_report report)
658 {
659 int i;
660 for (i = 0; i < MLX4_LINK_MODES_SZ; i++) {
661 if (eth_proto & MLX4_PROT_MASK(i))
662 bitmap_or(link_modes, link_modes,
663 ptys2ethtool_link_mode(&ptys2ethtool_map[i],
664 report),
665 __ETHTOOL_LINK_MODE_MASK_NBITS);
666 }
667 }
668
669 static u32 ethtool2ptys_link_modes(const unsigned long *link_modes,
670 enum ethtool_report report)
671 {
672 int i;
673 u32 ptys_modes = 0;
674
675 for (i = 0; i < MLX4_LINK_MODES_SZ; i++) {
676 if (bitmap_intersects(
677 ptys2ethtool_link_mode(&ptys2ethtool_map[i],
678 report),
679 link_modes,
680 __ETHTOOL_LINK_MODE_MASK_NBITS))
681 ptys_modes |= 1 << i;
682 }
683 return ptys_modes;
684 }
685
686 /* Convert actual speed (SPEED_XXX) to ptys link modes */
687 static u32 speed2ptys_link_modes(u32 speed)
688 {
689 int i;
690 u32 ptys_modes = 0;
691
692 for (i = 0; i < MLX4_LINK_MODES_SZ; i++) {
693 if (ptys2ethtool_map[i].speed == speed)
694 ptys_modes |= 1 << i;
695 }
696 return ptys_modes;
697 }
698
699 static int
700 ethtool_get_ptys_link_ksettings(struct net_device *dev,
701 struct ethtool_link_ksettings *link_ksettings)
702 {
703 struct mlx4_en_priv *priv = netdev_priv(dev);
704 struct mlx4_ptys_reg ptys_reg;
705 u32 eth_proto;
706 int ret;
707
708 memset(&ptys_reg, 0, sizeof(ptys_reg));
709 ptys_reg.local_port = priv->port;
710 ptys_reg.proto_mask = MLX4_PTYS_EN;
711 ret = mlx4_ACCESS_PTYS_REG(priv->mdev->dev,
712 MLX4_ACCESS_REG_QUERY, &ptys_reg);
713 if (ret) {
714 en_warn(priv, "Failed to run mlx4_ACCESS_PTYS_REG status(%x)",
715 ret);
716 return ret;
717 }
718 en_dbg(DRV, priv, "ptys_reg.proto_mask %x\n",
719 ptys_reg.proto_mask);
720 en_dbg(DRV, priv, "ptys_reg.eth_proto_cap %x\n",
721 be32_to_cpu(ptys_reg.eth_proto_cap));
722 en_dbg(DRV, priv, "ptys_reg.eth_proto_admin %x\n",
723 be32_to_cpu(ptys_reg.eth_proto_admin));
724 en_dbg(DRV, priv, "ptys_reg.eth_proto_oper %x\n",
725 be32_to_cpu(ptys_reg.eth_proto_oper));
726 en_dbg(DRV, priv, "ptys_reg.eth_proto_lp_adv %x\n",
727 be32_to_cpu(ptys_reg.eth_proto_lp_adv));
728
729 /* reset supported/advertising masks */
730 ethtool_link_ksettings_zero_link_mode(link_ksettings, supported);
731 ethtool_link_ksettings_zero_link_mode(link_ksettings, advertising);
732
733 ptys2ethtool_update_supported_port(link_ksettings->link_modes.supported,
734 &ptys_reg);
735
736 eth_proto = be32_to_cpu(ptys_reg.eth_proto_cap);
737 ptys2ethtool_update_link_modes(link_ksettings->link_modes.supported,
738 eth_proto, SUPPORTED);
739
740 eth_proto = be32_to_cpu(ptys_reg.eth_proto_admin);
741 ptys2ethtool_update_link_modes(link_ksettings->link_modes.advertising,
742 eth_proto, ADVERTISED);
743
744 ethtool_link_ksettings_add_link_mode(link_ksettings, supported,
745 Pause);
746 ethtool_link_ksettings_add_link_mode(link_ksettings, supported,
747 Asym_Pause);
748
749 if (priv->prof->tx_pause)
750 ethtool_link_ksettings_add_link_mode(link_ksettings,
751 advertising, Pause);
752 if (priv->prof->tx_pause ^ priv->prof->rx_pause)
753 ethtool_link_ksettings_add_link_mode(link_ksettings,
754 advertising, Asym_Pause);
755
756 link_ksettings->base.port = ptys_get_active_port(&ptys_reg);
757
758 if (mlx4_en_autoneg_get(dev)) {
759 ethtool_link_ksettings_add_link_mode(link_ksettings,
760 supported, Autoneg);
761 ethtool_link_ksettings_add_link_mode(link_ksettings,
762 advertising, Autoneg);
763 }
764
765 link_ksettings->base.autoneg
766 = (priv->port_state.flags & MLX4_EN_PORT_ANC) ?
767 AUTONEG_ENABLE : AUTONEG_DISABLE;
768
769 eth_proto = be32_to_cpu(ptys_reg.eth_proto_lp_adv);
770
771 ethtool_link_ksettings_zero_link_mode(link_ksettings, lp_advertising);
772 ptys2ethtool_update_link_modes(
773 link_ksettings->link_modes.lp_advertising,
774 eth_proto, ADVERTISED);
775 if (priv->port_state.flags & MLX4_EN_PORT_ANC)
776 ethtool_link_ksettings_add_link_mode(link_ksettings,
777 lp_advertising, Autoneg);
778
779 link_ksettings->base.phy_address = 0;
780 link_ksettings->base.mdio_support = 0;
781 link_ksettings->base.eth_tp_mdix = ETH_TP_MDI_INVALID;
782 link_ksettings->base.eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO;
783
784 return ret;
785 }
786
787 static void
788 ethtool_get_default_link_ksettings(
789 struct net_device *dev, struct ethtool_link_ksettings *link_ksettings)
790 {
791 struct mlx4_en_priv *priv = netdev_priv(dev);
792 int trans_type;
793
794 link_ksettings->base.autoneg = AUTONEG_DISABLE;
795
796 ethtool_link_ksettings_zero_link_mode(link_ksettings, supported);
797 ethtool_link_ksettings_add_link_mode(link_ksettings, supported,
798 10000baseT_Full);
799
800 ethtool_link_ksettings_zero_link_mode(link_ksettings, advertising);
801 ethtool_link_ksettings_add_link_mode(link_ksettings, advertising,
802 10000baseT_Full);
803
804 trans_type = priv->port_state.transceiver;
805 if (trans_type > 0 && trans_type <= 0xC) {
806 link_ksettings->base.port = PORT_FIBRE;
807 ethtool_link_ksettings_add_link_mode(link_ksettings,
808 supported, FIBRE);
809 ethtool_link_ksettings_add_link_mode(link_ksettings,
810 advertising, FIBRE);
811 } else if (trans_type == 0x80 || trans_type == 0) {
812 link_ksettings->base.port = PORT_TP;
813 ethtool_link_ksettings_add_link_mode(link_ksettings,
814 supported, TP);
815 ethtool_link_ksettings_add_link_mode(link_ksettings,
816 advertising, TP);
817 } else {
818 link_ksettings->base.port = -1;
819 }
820 }
821
822 static int
823 mlx4_en_get_link_ksettings(struct net_device *dev,
824 struct ethtool_link_ksettings *link_ksettings)
825 {
826 struct mlx4_en_priv *priv = netdev_priv(dev);
827 int ret = -EINVAL;
828
829 if (mlx4_en_QUERY_PORT(priv->mdev, priv->port))
830 return -ENOMEM;
831
832 en_dbg(DRV, priv, "query port state.flags ANC(%x) ANE(%x)\n",
833 priv->port_state.flags & MLX4_EN_PORT_ANC,
834 priv->port_state.flags & MLX4_EN_PORT_ANE);
835
836 if (priv->mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ETH_PROT_CTRL)
837 ret = ethtool_get_ptys_link_ksettings(dev, link_ksettings);
838 if (ret) /* ETH PROT CRTL is not supported or PTYS CMD failed */
839 ethtool_get_default_link_ksettings(dev, link_ksettings);
840
841 if (netif_carrier_ok(dev)) {
842 link_ksettings->base.speed = priv->port_state.link_speed;
843 link_ksettings->base.duplex = DUPLEX_FULL;
844 } else {
845 link_ksettings->base.speed = SPEED_UNKNOWN;
846 link_ksettings->base.duplex = DUPLEX_UNKNOWN;
847 }
848 return 0;
849 }
850
851 /* Calculate PTYS admin according ethtool speed (SPEED_XXX) */
852 static __be32 speed_set_ptys_admin(struct mlx4_en_priv *priv, u32 speed,
853 __be32 proto_cap)
854 {
855 __be32 proto_admin = 0;
856
857 if (!speed) { /* Speed = 0 ==> Reset Link modes */
858 proto_admin = proto_cap;
859 en_info(priv, "Speed was set to 0, Reset advertised Link Modes to default (%x)\n",
860 be32_to_cpu(proto_cap));
861 } else {
862 u32 ptys_link_modes = speed2ptys_link_modes(speed);
863
864 proto_admin = cpu_to_be32(ptys_link_modes) & proto_cap;
865 en_info(priv, "Setting Speed to %d\n", speed);
866 }
867 return proto_admin;
868 }
869
870 static int
871 mlx4_en_set_link_ksettings(struct net_device *dev,
872 const struct ethtool_link_ksettings *link_ksettings)
873 {
874 struct mlx4_en_priv *priv = netdev_priv(dev);
875 struct mlx4_ptys_reg ptys_reg;
876 __be32 proto_admin;
877 int ret;
878
879 u32 ptys_adv = ethtool2ptys_link_modes(
880 link_ksettings->link_modes.advertising, ADVERTISED);
881 const int speed = link_ksettings->base.speed;
882
883 en_dbg(DRV, priv,
884 "Set Speed=%d adv={%*pbl} autoneg=%d duplex=%d\n",
885 speed, __ETHTOOL_LINK_MODE_MASK_NBITS,
886 link_ksettings->link_modes.advertising,
887 link_ksettings->base.autoneg,
888 link_ksettings->base.duplex);
889
890 if (!(priv->mdev->dev->caps.flags2 &
891 MLX4_DEV_CAP_FLAG2_ETH_PROT_CTRL) ||
892 (link_ksettings->base.duplex == DUPLEX_HALF))
893 return -EINVAL;
894
895 memset(&ptys_reg, 0, sizeof(ptys_reg));
896 ptys_reg.local_port = priv->port;
897 ptys_reg.proto_mask = MLX4_PTYS_EN;
898 ret = mlx4_ACCESS_PTYS_REG(priv->mdev->dev,
899 MLX4_ACCESS_REG_QUERY, &ptys_reg);
900 if (ret) {
901 en_warn(priv, "Failed to QUERY mlx4_ACCESS_PTYS_REG status(%x)\n",
902 ret);
903 return 0;
904 }
905
906 proto_admin = link_ksettings->base.autoneg == AUTONEG_ENABLE ?
907 cpu_to_be32(ptys_adv) :
908 speed_set_ptys_admin(priv, speed,
909 ptys_reg.eth_proto_cap);
910
911 proto_admin &= ptys_reg.eth_proto_cap;
912 if (!proto_admin) {
913 en_warn(priv, "Not supported link mode(s) requested, check supported link modes.\n");
914 return -EINVAL; /* nothing to change due to bad input */
915 }
916
917 if (proto_admin == ptys_reg.eth_proto_admin)
918 return 0; /* Nothing to change */
919
920 en_dbg(DRV, priv, "mlx4_ACCESS_PTYS_REG SET: ptys_reg.eth_proto_admin = 0x%x\n",
921 be32_to_cpu(proto_admin));
922
923 ptys_reg.eth_proto_admin = proto_admin;
924 ret = mlx4_ACCESS_PTYS_REG(priv->mdev->dev, MLX4_ACCESS_REG_WRITE,
925 &ptys_reg);
926 if (ret) {
927 en_warn(priv, "Failed to write mlx4_ACCESS_PTYS_REG eth_proto_admin(0x%x) status(0x%x)",
928 be32_to_cpu(ptys_reg.eth_proto_admin), ret);
929 return ret;
930 }
931
932 mutex_lock(&priv->mdev->state_lock);
933 if (priv->port_up) {
934 en_warn(priv, "Port link mode changed, restarting port...\n");
935 mlx4_en_stop_port(dev, 1);
936 if (mlx4_en_start_port(dev))
937 en_err(priv, "Failed restarting port %d\n", priv->port);
938 }
939 mutex_unlock(&priv->mdev->state_lock);
940 return 0;
941 }
942
943 static int mlx4_en_get_coalesce(struct net_device *dev,
944 struct ethtool_coalesce *coal)
945 {
946 struct mlx4_en_priv *priv = netdev_priv(dev);
947
948 coal->tx_coalesce_usecs = priv->tx_usecs;
949 coal->tx_max_coalesced_frames = priv->tx_frames;
950 coal->tx_max_coalesced_frames_irq = priv->tx_work_limit;
951
952 coal->rx_coalesce_usecs = priv->rx_usecs;
953 coal->rx_max_coalesced_frames = priv->rx_frames;
954
955 coal->pkt_rate_low = priv->pkt_rate_low;
956 coal->rx_coalesce_usecs_low = priv->rx_usecs_low;
957 coal->pkt_rate_high = priv->pkt_rate_high;
958 coal->rx_coalesce_usecs_high = priv->rx_usecs_high;
959 coal->rate_sample_interval = priv->sample_interval;
960 coal->use_adaptive_rx_coalesce = priv->adaptive_rx_coal;
961
962 return 0;
963 }
964
965 static int mlx4_en_set_coalesce(struct net_device *dev,
966 struct ethtool_coalesce *coal)
967 {
968 struct mlx4_en_priv *priv = netdev_priv(dev);
969
970 if (!coal->tx_max_coalesced_frames_irq)
971 return -EINVAL;
972
973 priv->rx_frames = (coal->rx_max_coalesced_frames ==
974 MLX4_EN_AUTO_CONF) ?
975 MLX4_EN_RX_COAL_TARGET :
976 coal->rx_max_coalesced_frames;
977 priv->rx_usecs = (coal->rx_coalesce_usecs ==
978 MLX4_EN_AUTO_CONF) ?
979 MLX4_EN_RX_COAL_TIME :
980 coal->rx_coalesce_usecs;
981
982 /* Setting TX coalescing parameters */
983 if (coal->tx_coalesce_usecs != priv->tx_usecs ||
984 coal->tx_max_coalesced_frames != priv->tx_frames) {
985 priv->tx_usecs = coal->tx_coalesce_usecs;
986 priv->tx_frames = coal->tx_max_coalesced_frames;
987 }
988
989 /* Set adaptive coalescing params */
990 priv->pkt_rate_low = coal->pkt_rate_low;
991 priv->rx_usecs_low = coal->rx_coalesce_usecs_low;
992 priv->pkt_rate_high = coal->pkt_rate_high;
993 priv->rx_usecs_high = coal->rx_coalesce_usecs_high;
994 priv->sample_interval = coal->rate_sample_interval;
995 priv->adaptive_rx_coal = coal->use_adaptive_rx_coalesce;
996 priv->tx_work_limit = coal->tx_max_coalesced_frames_irq;
997
998 return mlx4_en_moderation_update(priv);
999 }
1000
1001 static int mlx4_en_set_pauseparam(struct net_device *dev,
1002 struct ethtool_pauseparam *pause)
1003 {
1004 struct mlx4_en_priv *priv = netdev_priv(dev);
1005 struct mlx4_en_dev *mdev = priv->mdev;
1006 int err;
1007
1008 if (pause->autoneg)
1009 return -EINVAL;
1010
1011 priv->prof->tx_pause = pause->tx_pause != 0;
1012 priv->prof->rx_pause = pause->rx_pause != 0;
1013 err = mlx4_SET_PORT_general(mdev->dev, priv->port,
1014 priv->rx_skb_size + ETH_FCS_LEN,
1015 priv->prof->tx_pause,
1016 priv->prof->tx_ppp,
1017 priv->prof->rx_pause,
1018 priv->prof->rx_ppp);
1019 if (err)
1020 en_err(priv, "Failed setting pause params\n");
1021 else
1022 mlx4_en_update_pfc_stats_bitmap(mdev->dev, &priv->stats_bitmap,
1023 priv->prof->rx_ppp,
1024 priv->prof->rx_pause,
1025 priv->prof->tx_ppp,
1026 priv->prof->tx_pause);
1027
1028 return err;
1029 }
1030
1031 static void mlx4_en_get_pauseparam(struct net_device *dev,
1032 struct ethtool_pauseparam *pause)
1033 {
1034 struct mlx4_en_priv *priv = netdev_priv(dev);
1035
1036 pause->tx_pause = priv->prof->tx_pause;
1037 pause->rx_pause = priv->prof->rx_pause;
1038 }
1039
1040 static int mlx4_en_set_ringparam(struct net_device *dev,
1041 struct ethtool_ringparam *param)
1042 {
1043 struct mlx4_en_priv *priv = netdev_priv(dev);
1044 struct mlx4_en_dev *mdev = priv->mdev;
1045 struct mlx4_en_port_profile new_prof;
1046 struct mlx4_en_priv *tmp;
1047 u32 rx_size, tx_size;
1048 int port_up = 0;
1049 int err = 0;
1050
1051 if (param->rx_jumbo_pending || param->rx_mini_pending)
1052 return -EINVAL;
1053
1054 rx_size = roundup_pow_of_two(param->rx_pending);
1055 rx_size = max_t(u32, rx_size, MLX4_EN_MIN_RX_SIZE);
1056 rx_size = min_t(u32, rx_size, MLX4_EN_MAX_RX_SIZE);
1057 tx_size = roundup_pow_of_two(param->tx_pending);
1058 tx_size = max_t(u32, tx_size, MLX4_EN_MIN_TX_SIZE);
1059 tx_size = min_t(u32, tx_size, MLX4_EN_MAX_TX_SIZE);
1060
1061 if (rx_size == (priv->port_up ? priv->rx_ring[0]->actual_size :
1062 priv->rx_ring[0]->size) &&
1063 tx_size == priv->tx_ring[0]->size)
1064 return 0;
1065
1066 tmp = kzalloc(sizeof(*tmp), GFP_KERNEL);
1067 if (!tmp)
1068 return -ENOMEM;
1069
1070 mutex_lock(&mdev->state_lock);
1071 memcpy(&new_prof, priv->prof, sizeof(struct mlx4_en_port_profile));
1072 new_prof.tx_ring_size = tx_size;
1073 new_prof.rx_ring_size = rx_size;
1074 err = mlx4_en_try_alloc_resources(priv, tmp, &new_prof);
1075 if (err)
1076 goto out;
1077
1078 if (priv->port_up) {
1079 port_up = 1;
1080 mlx4_en_stop_port(dev, 1);
1081 }
1082
1083 mlx4_en_safe_replace_resources(priv, tmp);
1084
1085 if (port_up) {
1086 err = mlx4_en_start_port(dev);
1087 if (err)
1088 en_err(priv, "Failed starting port\n");
1089 }
1090
1091 err = mlx4_en_moderation_update(priv);
1092 out:
1093 kfree(tmp);
1094 mutex_unlock(&mdev->state_lock);
1095 return err;
1096 }
1097
1098 static void mlx4_en_get_ringparam(struct net_device *dev,
1099 struct ethtool_ringparam *param)
1100 {
1101 struct mlx4_en_priv *priv = netdev_priv(dev);
1102
1103 memset(param, 0, sizeof(*param));
1104 param->rx_max_pending = MLX4_EN_MAX_RX_SIZE;
1105 param->tx_max_pending = MLX4_EN_MAX_TX_SIZE;
1106 param->rx_pending = priv->port_up ?
1107 priv->rx_ring[0]->actual_size : priv->rx_ring[0]->size;
1108 param->tx_pending = priv->tx_ring[0]->size;
1109 }
1110
1111 static u32 mlx4_en_get_rxfh_indir_size(struct net_device *dev)
1112 {
1113 struct mlx4_en_priv *priv = netdev_priv(dev);
1114
1115 return rounddown_pow_of_two(priv->rx_ring_num);
1116 }
1117
1118 static u32 mlx4_en_get_rxfh_key_size(struct net_device *netdev)
1119 {
1120 return MLX4_EN_RSS_KEY_SIZE;
1121 }
1122
1123 static int mlx4_en_check_rxfh_func(struct net_device *dev, u8 hfunc)
1124 {
1125 struct mlx4_en_priv *priv = netdev_priv(dev);
1126
1127 /* check if requested function is supported by the device */
1128 if (hfunc == ETH_RSS_HASH_TOP) {
1129 if (!(priv->mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_RSS_TOP))
1130 return -EINVAL;
1131 if (!(dev->features & NETIF_F_RXHASH))
1132 en_warn(priv, "Toeplitz hash function should be used in conjunction with RX hashing for optimal performance\n");
1133 return 0;
1134 } else if (hfunc == ETH_RSS_HASH_XOR) {
1135 if (!(priv->mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_RSS_XOR))
1136 return -EINVAL;
1137 if (dev->features & NETIF_F_RXHASH)
1138 en_warn(priv, "Enabling both XOR Hash function and RX Hashing can limit RPS functionality\n");
1139 return 0;
1140 }
1141
1142 return -EINVAL;
1143 }
1144
1145 static int mlx4_en_get_rxfh(struct net_device *dev, u32 *ring_index, u8 *key,
1146 u8 *hfunc)
1147 {
1148 struct mlx4_en_priv *priv = netdev_priv(dev);
1149 u32 n = mlx4_en_get_rxfh_indir_size(dev);
1150 u32 i, rss_rings;
1151 int err = 0;
1152
1153 rss_rings = priv->prof->rss_rings ?: n;
1154 rss_rings = rounddown_pow_of_two(rss_rings);
1155
1156 for (i = 0; i < n; i++) {
1157 if (!ring_index)
1158 break;
1159 ring_index[i] = i % rss_rings;
1160 }
1161 if (key)
1162 memcpy(key, priv->rss_key, MLX4_EN_RSS_KEY_SIZE);
1163 if (hfunc)
1164 *hfunc = priv->rss_hash_fn;
1165 return err;
1166 }
1167
1168 static int mlx4_en_set_rxfh(struct net_device *dev, const u32 *ring_index,
1169 const u8 *key, const u8 hfunc)
1170 {
1171 struct mlx4_en_priv *priv = netdev_priv(dev);
1172 u32 n = mlx4_en_get_rxfh_indir_size(dev);
1173 struct mlx4_en_dev *mdev = priv->mdev;
1174 int port_up = 0;
1175 int err = 0;
1176 int i;
1177 int rss_rings = 0;
1178
1179 /* Calculate RSS table size and make sure flows are spread evenly
1180 * between rings
1181 */
1182 for (i = 0; i < n; i++) {
1183 if (!ring_index)
1184 break;
1185 if (i > 0 && !ring_index[i] && !rss_rings)
1186 rss_rings = i;
1187
1188 if (ring_index[i] != (i % (rss_rings ?: n)))
1189 return -EINVAL;
1190 }
1191
1192 if (!rss_rings)
1193 rss_rings = n;
1194
1195 /* RSS table size must be an order of 2 */
1196 if (!is_power_of_2(rss_rings))
1197 return -EINVAL;
1198
1199 if (hfunc != ETH_RSS_HASH_NO_CHANGE) {
1200 err = mlx4_en_check_rxfh_func(dev, hfunc);
1201 if (err)
1202 return err;
1203 }
1204
1205 mutex_lock(&mdev->state_lock);
1206 if (priv->port_up) {
1207 port_up = 1;
1208 mlx4_en_stop_port(dev, 1);
1209 }
1210
1211 if (ring_index)
1212 priv->prof->rss_rings = rss_rings;
1213 if (key)
1214 memcpy(priv->rss_key, key, MLX4_EN_RSS_KEY_SIZE);
1215 if (hfunc != ETH_RSS_HASH_NO_CHANGE)
1216 priv->rss_hash_fn = hfunc;
1217
1218 if (port_up) {
1219 err = mlx4_en_start_port(dev);
1220 if (err)
1221 en_err(priv, "Failed starting port\n");
1222 }
1223
1224 mutex_unlock(&mdev->state_lock);
1225 return err;
1226 }
1227
1228 #define all_zeros_or_all_ones(field) \
1229 ((field) == 0 || (field) == (__force typeof(field))-1)
1230
1231 static int mlx4_en_validate_flow(struct net_device *dev,
1232 struct ethtool_rxnfc *cmd)
1233 {
1234 struct ethtool_usrip4_spec *l3_mask;
1235 struct ethtool_tcpip4_spec *l4_mask;
1236 struct ethhdr *eth_mask;
1237
1238 if (cmd->fs.location >= MAX_NUM_OF_FS_RULES)
1239 return -EINVAL;
1240
1241 if (cmd->fs.flow_type & FLOW_MAC_EXT) {
1242 /* dest mac mask must be ff:ff:ff:ff:ff:ff */
1243 if (!is_broadcast_ether_addr(cmd->fs.m_ext.h_dest))
1244 return -EINVAL;
1245 }
1246
1247 switch (cmd->fs.flow_type & ~(FLOW_EXT | FLOW_MAC_EXT)) {
1248 case TCP_V4_FLOW:
1249 case UDP_V4_FLOW:
1250 if (cmd->fs.m_u.tcp_ip4_spec.tos)
1251 return -EINVAL;
1252 l4_mask = &cmd->fs.m_u.tcp_ip4_spec;
1253 /* don't allow mask which isn't all 0 or 1 */
1254 if (!all_zeros_or_all_ones(l4_mask->ip4src) ||
1255 !all_zeros_or_all_ones(l4_mask->ip4dst) ||
1256 !all_zeros_or_all_ones(l4_mask->psrc) ||
1257 !all_zeros_or_all_ones(l4_mask->pdst))
1258 return -EINVAL;
1259 break;
1260 case IP_USER_FLOW:
1261 l3_mask = &cmd->fs.m_u.usr_ip4_spec;
1262 if (l3_mask->l4_4_bytes || l3_mask->tos || l3_mask->proto ||
1263 cmd->fs.h_u.usr_ip4_spec.ip_ver != ETH_RX_NFC_IP4 ||
1264 (!l3_mask->ip4src && !l3_mask->ip4dst) ||
1265 !all_zeros_or_all_ones(l3_mask->ip4src) ||
1266 !all_zeros_or_all_ones(l3_mask->ip4dst))
1267 return -EINVAL;
1268 break;
1269 case ETHER_FLOW:
1270 eth_mask = &cmd->fs.m_u.ether_spec;
1271 /* source mac mask must not be set */
1272 if (!is_zero_ether_addr(eth_mask->h_source))
1273 return -EINVAL;
1274
1275 /* dest mac mask must be ff:ff:ff:ff:ff:ff */
1276 if (!is_broadcast_ether_addr(eth_mask->h_dest))
1277 return -EINVAL;
1278
1279 if (!all_zeros_or_all_ones(eth_mask->h_proto))
1280 return -EINVAL;
1281 break;
1282 default:
1283 return -EINVAL;
1284 }
1285
1286 if ((cmd->fs.flow_type & FLOW_EXT)) {
1287 if (cmd->fs.m_ext.vlan_etype ||
1288 !((cmd->fs.m_ext.vlan_tci & cpu_to_be16(VLAN_VID_MASK)) ==
1289 0 ||
1290 (cmd->fs.m_ext.vlan_tci & cpu_to_be16(VLAN_VID_MASK)) ==
1291 cpu_to_be16(VLAN_VID_MASK)))
1292 return -EINVAL;
1293
1294 if (cmd->fs.m_ext.vlan_tci) {
1295 if (be16_to_cpu(cmd->fs.h_ext.vlan_tci) >= VLAN_N_VID)
1296 return -EINVAL;
1297
1298 }
1299 }
1300
1301 return 0;
1302 }
1303
1304 static int mlx4_en_ethtool_add_mac_rule(struct ethtool_rxnfc *cmd,
1305 struct list_head *rule_list_h,
1306 struct mlx4_spec_list *spec_l2,
1307 unsigned char *mac)
1308 {
1309 int err = 0;
1310 __be64 mac_msk = cpu_to_be64(MLX4_MAC_MASK << 16);
1311
1312 spec_l2->id = MLX4_NET_TRANS_RULE_ID_ETH;
1313 memcpy(spec_l2->eth.dst_mac_msk, &mac_msk, ETH_ALEN);
1314 memcpy(spec_l2->eth.dst_mac, mac, ETH_ALEN);
1315
1316 if ((cmd->fs.flow_type & FLOW_EXT) &&
1317 (cmd->fs.m_ext.vlan_tci & cpu_to_be16(VLAN_VID_MASK))) {
1318 spec_l2->eth.vlan_id = cmd->fs.h_ext.vlan_tci;
1319 spec_l2->eth.vlan_id_msk = cpu_to_be16(VLAN_VID_MASK);
1320 }
1321
1322 list_add_tail(&spec_l2->list, rule_list_h);
1323
1324 return err;
1325 }
1326
1327 static int mlx4_en_ethtool_add_mac_rule_by_ipv4(struct mlx4_en_priv *priv,
1328 struct ethtool_rxnfc *cmd,
1329 struct list_head *rule_list_h,
1330 struct mlx4_spec_list *spec_l2,
1331 __be32 ipv4_dst)
1332 {
1333 #ifdef CONFIG_INET
1334 unsigned char mac[ETH_ALEN];
1335
1336 if (!ipv4_is_multicast(ipv4_dst)) {
1337 if (cmd->fs.flow_type & FLOW_MAC_EXT)
1338 memcpy(&mac, cmd->fs.h_ext.h_dest, ETH_ALEN);
1339 else
1340 memcpy(&mac, priv->dev->dev_addr, ETH_ALEN);
1341 } else {
1342 ip_eth_mc_map(ipv4_dst, mac);
1343 }
1344
1345 return mlx4_en_ethtool_add_mac_rule(cmd, rule_list_h, spec_l2, &mac[0]);
1346 #else
1347 return -EINVAL;
1348 #endif
1349 }
1350
1351 static int add_ip_rule(struct mlx4_en_priv *priv,
1352 struct ethtool_rxnfc *cmd,
1353 struct list_head *list_h)
1354 {
1355 int err;
1356 struct mlx4_spec_list *spec_l2 = NULL;
1357 struct mlx4_spec_list *spec_l3 = NULL;
1358 struct ethtool_usrip4_spec *l3_mask = &cmd->fs.m_u.usr_ip4_spec;
1359
1360 spec_l3 = kzalloc(sizeof(*spec_l3), GFP_KERNEL);
1361 spec_l2 = kzalloc(sizeof(*spec_l2), GFP_KERNEL);
1362 if (!spec_l2 || !spec_l3) {
1363 err = -ENOMEM;
1364 goto free_spec;
1365 }
1366
1367 err = mlx4_en_ethtool_add_mac_rule_by_ipv4(priv, cmd, list_h, spec_l2,
1368 cmd->fs.h_u.
1369 usr_ip4_spec.ip4dst);
1370 if (err)
1371 goto free_spec;
1372 spec_l3->id = MLX4_NET_TRANS_RULE_ID_IPV4;
1373 spec_l3->ipv4.src_ip = cmd->fs.h_u.usr_ip4_spec.ip4src;
1374 if (l3_mask->ip4src)
1375 spec_l3->ipv4.src_ip_msk = EN_ETHTOOL_WORD_MASK;
1376 spec_l3->ipv4.dst_ip = cmd->fs.h_u.usr_ip4_spec.ip4dst;
1377 if (l3_mask->ip4dst)
1378 spec_l3->ipv4.dst_ip_msk = EN_ETHTOOL_WORD_MASK;
1379 list_add_tail(&spec_l3->list, list_h);
1380
1381 return 0;
1382
1383 free_spec:
1384 kfree(spec_l2);
1385 kfree(spec_l3);
1386 return err;
1387 }
1388
1389 static int add_tcp_udp_rule(struct mlx4_en_priv *priv,
1390 struct ethtool_rxnfc *cmd,
1391 struct list_head *list_h, int proto)
1392 {
1393 int err;
1394 struct mlx4_spec_list *spec_l2 = NULL;
1395 struct mlx4_spec_list *spec_l3 = NULL;
1396 struct mlx4_spec_list *spec_l4 = NULL;
1397 struct ethtool_tcpip4_spec *l4_mask = &cmd->fs.m_u.tcp_ip4_spec;
1398
1399 spec_l2 = kzalloc(sizeof(*spec_l2), GFP_KERNEL);
1400 spec_l3 = kzalloc(sizeof(*spec_l3), GFP_KERNEL);
1401 spec_l4 = kzalloc(sizeof(*spec_l4), GFP_KERNEL);
1402 if (!spec_l2 || !spec_l3 || !spec_l4) {
1403 err = -ENOMEM;
1404 goto free_spec;
1405 }
1406
1407 spec_l3->id = MLX4_NET_TRANS_RULE_ID_IPV4;
1408
1409 if (proto == TCP_V4_FLOW) {
1410 err = mlx4_en_ethtool_add_mac_rule_by_ipv4(priv, cmd, list_h,
1411 spec_l2,
1412 cmd->fs.h_u.
1413 tcp_ip4_spec.ip4dst);
1414 if (err)
1415 goto free_spec;
1416 spec_l4->id = MLX4_NET_TRANS_RULE_ID_TCP;
1417 spec_l3->ipv4.src_ip = cmd->fs.h_u.tcp_ip4_spec.ip4src;
1418 spec_l3->ipv4.dst_ip = cmd->fs.h_u.tcp_ip4_spec.ip4dst;
1419 spec_l4->tcp_udp.src_port = cmd->fs.h_u.tcp_ip4_spec.psrc;
1420 spec_l4->tcp_udp.dst_port = cmd->fs.h_u.tcp_ip4_spec.pdst;
1421 } else {
1422 err = mlx4_en_ethtool_add_mac_rule_by_ipv4(priv, cmd, list_h,
1423 spec_l2,
1424 cmd->fs.h_u.
1425 udp_ip4_spec.ip4dst);
1426 if (err)
1427 goto free_spec;
1428 spec_l4->id = MLX4_NET_TRANS_RULE_ID_UDP;
1429 spec_l3->ipv4.src_ip = cmd->fs.h_u.udp_ip4_spec.ip4src;
1430 spec_l3->ipv4.dst_ip = cmd->fs.h_u.udp_ip4_spec.ip4dst;
1431 spec_l4->tcp_udp.src_port = cmd->fs.h_u.udp_ip4_spec.psrc;
1432 spec_l4->tcp_udp.dst_port = cmd->fs.h_u.udp_ip4_spec.pdst;
1433 }
1434
1435 if (l4_mask->ip4src)
1436 spec_l3->ipv4.src_ip_msk = EN_ETHTOOL_WORD_MASK;
1437 if (l4_mask->ip4dst)
1438 spec_l3->ipv4.dst_ip_msk = EN_ETHTOOL_WORD_MASK;
1439
1440 if (l4_mask->psrc)
1441 spec_l4->tcp_udp.src_port_msk = EN_ETHTOOL_SHORT_MASK;
1442 if (l4_mask->pdst)
1443 spec_l4->tcp_udp.dst_port_msk = EN_ETHTOOL_SHORT_MASK;
1444
1445 list_add_tail(&spec_l3->list, list_h);
1446 list_add_tail(&spec_l4->list, list_h);
1447
1448 return 0;
1449
1450 free_spec:
1451 kfree(spec_l2);
1452 kfree(spec_l3);
1453 kfree(spec_l4);
1454 return err;
1455 }
1456
1457 static int mlx4_en_ethtool_to_net_trans_rule(struct net_device *dev,
1458 struct ethtool_rxnfc *cmd,
1459 struct list_head *rule_list_h)
1460 {
1461 int err;
1462 struct ethhdr *eth_spec;
1463 struct mlx4_spec_list *spec_l2;
1464 struct mlx4_en_priv *priv = netdev_priv(dev);
1465
1466 err = mlx4_en_validate_flow(dev, cmd);
1467 if (err)
1468 return err;
1469
1470 switch (cmd->fs.flow_type & ~(FLOW_EXT | FLOW_MAC_EXT)) {
1471 case ETHER_FLOW:
1472 spec_l2 = kzalloc(sizeof(*spec_l2), GFP_KERNEL);
1473 if (!spec_l2)
1474 return -ENOMEM;
1475
1476 eth_spec = &cmd->fs.h_u.ether_spec;
1477 mlx4_en_ethtool_add_mac_rule(cmd, rule_list_h, spec_l2,
1478 &eth_spec->h_dest[0]);
1479 spec_l2->eth.ether_type = eth_spec->h_proto;
1480 if (eth_spec->h_proto)
1481 spec_l2->eth.ether_type_enable = 1;
1482 break;
1483 case IP_USER_FLOW:
1484 err = add_ip_rule(priv, cmd, rule_list_h);
1485 break;
1486 case TCP_V4_FLOW:
1487 err = add_tcp_udp_rule(priv, cmd, rule_list_h, TCP_V4_FLOW);
1488 break;
1489 case UDP_V4_FLOW:
1490 err = add_tcp_udp_rule(priv, cmd, rule_list_h, UDP_V4_FLOW);
1491 break;
1492 }
1493
1494 return err;
1495 }
1496
1497 static int mlx4_en_flow_replace(struct net_device *dev,
1498 struct ethtool_rxnfc *cmd)
1499 {
1500 int err;
1501 struct mlx4_en_priv *priv = netdev_priv(dev);
1502 struct ethtool_flow_id *loc_rule;
1503 struct mlx4_spec_list *spec, *tmp_spec;
1504 u32 qpn;
1505 u64 reg_id;
1506
1507 struct mlx4_net_trans_rule rule = {
1508 .queue_mode = MLX4_NET_TRANS_Q_FIFO,
1509 .exclusive = 0,
1510 .allow_loopback = 1,
1511 .promisc_mode = MLX4_FS_REGULAR,
1512 };
1513
1514 rule.port = priv->port;
1515 rule.priority = MLX4_DOMAIN_ETHTOOL | cmd->fs.location;
1516 INIT_LIST_HEAD(&rule.list);
1517
1518 /* Allow direct QP attaches if the EN_ETHTOOL_QP_ATTACH flag is set */
1519 if (cmd->fs.ring_cookie == RX_CLS_FLOW_DISC)
1520 qpn = priv->drop_qp.qpn;
1521 else if (cmd->fs.ring_cookie & EN_ETHTOOL_QP_ATTACH) {
1522 qpn = cmd->fs.ring_cookie & (EN_ETHTOOL_QP_ATTACH - 1);
1523 } else {
1524 if (cmd->fs.ring_cookie >= priv->rx_ring_num) {
1525 en_warn(priv, "rxnfc: RX ring (%llu) doesn't exist\n",
1526 cmd->fs.ring_cookie);
1527 return -EINVAL;
1528 }
1529 qpn = priv->rss_map.qps[cmd->fs.ring_cookie].qpn;
1530 if (!qpn) {
1531 en_warn(priv, "rxnfc: RX ring (%llu) is inactive\n",
1532 cmd->fs.ring_cookie);
1533 return -EINVAL;
1534 }
1535 }
1536 rule.qpn = qpn;
1537 err = mlx4_en_ethtool_to_net_trans_rule(dev, cmd, &rule.list);
1538 if (err)
1539 goto out_free_list;
1540
1541 loc_rule = &priv->ethtool_rules[cmd->fs.location];
1542 if (loc_rule->id) {
1543 err = mlx4_flow_detach(priv->mdev->dev, loc_rule->id);
1544 if (err) {
1545 en_err(priv, "Fail to detach network rule at location %d. registration id = %llx\n",
1546 cmd->fs.location, loc_rule->id);
1547 goto out_free_list;
1548 }
1549 loc_rule->id = 0;
1550 memset(&loc_rule->flow_spec, 0,
1551 sizeof(struct ethtool_rx_flow_spec));
1552 list_del(&loc_rule->list);
1553 }
1554 err = mlx4_flow_attach(priv->mdev->dev, &rule, &reg_id);
1555 if (err) {
1556 en_err(priv, "Fail to attach network rule at location %d\n",
1557 cmd->fs.location);
1558 goto out_free_list;
1559 }
1560 loc_rule->id = reg_id;
1561 memcpy(&loc_rule->flow_spec, &cmd->fs,
1562 sizeof(struct ethtool_rx_flow_spec));
1563 list_add_tail(&loc_rule->list, &priv->ethtool_list);
1564
1565 out_free_list:
1566 list_for_each_entry_safe(spec, tmp_spec, &rule.list, list) {
1567 list_del(&spec->list);
1568 kfree(spec);
1569 }
1570 return err;
1571 }
1572
1573 static int mlx4_en_flow_detach(struct net_device *dev,
1574 struct ethtool_rxnfc *cmd)
1575 {
1576 int err = 0;
1577 struct ethtool_flow_id *rule;
1578 struct mlx4_en_priv *priv = netdev_priv(dev);
1579
1580 if (cmd->fs.location >= MAX_NUM_OF_FS_RULES)
1581 return -EINVAL;
1582
1583 rule = &priv->ethtool_rules[cmd->fs.location];
1584 if (!rule->id) {
1585 err = -ENOENT;
1586 goto out;
1587 }
1588
1589 err = mlx4_flow_detach(priv->mdev->dev, rule->id);
1590 if (err) {
1591 en_err(priv, "Fail to detach network rule at location %d. registration id = 0x%llx\n",
1592 cmd->fs.location, rule->id);
1593 goto out;
1594 }
1595 rule->id = 0;
1596 memset(&rule->flow_spec, 0, sizeof(struct ethtool_rx_flow_spec));
1597 list_del(&rule->list);
1598 out:
1599 return err;
1600
1601 }
1602
1603 static int mlx4_en_get_flow(struct net_device *dev, struct ethtool_rxnfc *cmd,
1604 int loc)
1605 {
1606 int err = 0;
1607 struct ethtool_flow_id *rule;
1608 struct mlx4_en_priv *priv = netdev_priv(dev);
1609
1610 if (loc < 0 || loc >= MAX_NUM_OF_FS_RULES)
1611 return -EINVAL;
1612
1613 rule = &priv->ethtool_rules[loc];
1614 if (rule->id)
1615 memcpy(&cmd->fs, &rule->flow_spec,
1616 sizeof(struct ethtool_rx_flow_spec));
1617 else
1618 err = -ENOENT;
1619
1620 return err;
1621 }
1622
1623 static int mlx4_en_get_num_flows(struct mlx4_en_priv *priv)
1624 {
1625
1626 int i, res = 0;
1627 for (i = 0; i < MAX_NUM_OF_FS_RULES; i++) {
1628 if (priv->ethtool_rules[i].id)
1629 res++;
1630 }
1631 return res;
1632
1633 }
1634
1635 static int mlx4_en_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
1636 u32 *rule_locs)
1637 {
1638 struct mlx4_en_priv *priv = netdev_priv(dev);
1639 struct mlx4_en_dev *mdev = priv->mdev;
1640 int err = 0;
1641 int i = 0, priority = 0;
1642
1643 if ((cmd->cmd == ETHTOOL_GRXCLSRLCNT ||
1644 cmd->cmd == ETHTOOL_GRXCLSRULE ||
1645 cmd->cmd == ETHTOOL_GRXCLSRLALL) &&
1646 (mdev->dev->caps.steering_mode !=
1647 MLX4_STEERING_MODE_DEVICE_MANAGED || !priv->port_up))
1648 return -EINVAL;
1649
1650 switch (cmd->cmd) {
1651 case ETHTOOL_GRXRINGS:
1652 cmd->data = priv->rx_ring_num;
1653 break;
1654 case ETHTOOL_GRXCLSRLCNT:
1655 cmd->rule_cnt = mlx4_en_get_num_flows(priv);
1656 break;
1657 case ETHTOOL_GRXCLSRULE:
1658 err = mlx4_en_get_flow(dev, cmd, cmd->fs.location);
1659 break;
1660 case ETHTOOL_GRXCLSRLALL:
1661 while ((!err || err == -ENOENT) && priority < cmd->rule_cnt) {
1662 err = mlx4_en_get_flow(dev, cmd, i);
1663 if (!err)
1664 rule_locs[priority++] = i;
1665 i++;
1666 }
1667 err = 0;
1668 break;
1669 default:
1670 err = -EOPNOTSUPP;
1671 break;
1672 }
1673
1674 return err;
1675 }
1676
1677 static int mlx4_en_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd)
1678 {
1679 int err = 0;
1680 struct mlx4_en_priv *priv = netdev_priv(dev);
1681 struct mlx4_en_dev *mdev = priv->mdev;
1682
1683 if (mdev->dev->caps.steering_mode !=
1684 MLX4_STEERING_MODE_DEVICE_MANAGED || !priv->port_up)
1685 return -EINVAL;
1686
1687 switch (cmd->cmd) {
1688 case ETHTOOL_SRXCLSRLINS:
1689 err = mlx4_en_flow_replace(dev, cmd);
1690 break;
1691 case ETHTOOL_SRXCLSRLDEL:
1692 err = mlx4_en_flow_detach(dev, cmd);
1693 break;
1694 default:
1695 en_warn(priv, "Unsupported ethtool command. (%d)\n", cmd->cmd);
1696 return -EINVAL;
1697 }
1698
1699 return err;
1700 }
1701
1702 static void mlx4_en_get_channels(struct net_device *dev,
1703 struct ethtool_channels *channel)
1704 {
1705 struct mlx4_en_priv *priv = netdev_priv(dev);
1706
1707 memset(channel, 0, sizeof(*channel));
1708
1709 channel->max_rx = MAX_RX_RINGS;
1710 channel->max_tx = MLX4_EN_MAX_TX_RING_P_UP;
1711
1712 channel->rx_count = priv->rx_ring_num;
1713 channel->tx_count = priv->tx_ring_num / MLX4_EN_NUM_UP;
1714 }
1715
1716 static int mlx4_en_set_channels(struct net_device *dev,
1717 struct ethtool_channels *channel)
1718 {
1719 struct mlx4_en_priv *priv = netdev_priv(dev);
1720 struct mlx4_en_dev *mdev = priv->mdev;
1721 struct mlx4_en_port_profile new_prof;
1722 struct mlx4_en_priv *tmp;
1723 int port_up = 0;
1724 int err = 0;
1725
1726 if (channel->other_count || channel->combined_count ||
1727 channel->tx_count > MLX4_EN_MAX_TX_RING_P_UP ||
1728 channel->rx_count > MAX_RX_RINGS ||
1729 !channel->tx_count || !channel->rx_count)
1730 return -EINVAL;
1731
1732 if (channel->tx_count * MLX4_EN_NUM_UP <= priv->xdp_ring_num) {
1733 en_err(priv, "Minimum %d tx channels required with XDP on\n",
1734 priv->xdp_ring_num / MLX4_EN_NUM_UP + 1);
1735 return -EINVAL;
1736 }
1737
1738 tmp = kzalloc(sizeof(*tmp), GFP_KERNEL);
1739 if (!tmp)
1740 return -ENOMEM;
1741
1742 mutex_lock(&mdev->state_lock);
1743 memcpy(&new_prof, priv->prof, sizeof(struct mlx4_en_port_profile));
1744 new_prof.num_tx_rings_p_up = channel->tx_count;
1745 new_prof.tx_ring_num = channel->tx_count * MLX4_EN_NUM_UP;
1746 new_prof.rx_ring_num = channel->rx_count;
1747
1748 err = mlx4_en_try_alloc_resources(priv, tmp, &new_prof);
1749 if (err)
1750 goto out;
1751
1752 if (priv->port_up) {
1753 port_up = 1;
1754 mlx4_en_stop_port(dev, 1);
1755 }
1756
1757 mlx4_en_safe_replace_resources(priv, tmp);
1758
1759 netif_set_real_num_tx_queues(dev, priv->tx_ring_num -
1760 priv->xdp_ring_num);
1761 netif_set_real_num_rx_queues(dev, priv->rx_ring_num);
1762
1763 if (dev->num_tc)
1764 mlx4_en_setup_tc(dev, MLX4_EN_NUM_UP);
1765
1766 en_warn(priv, "Using %d TX rings\n", priv->tx_ring_num);
1767 en_warn(priv, "Using %d RX rings\n", priv->rx_ring_num);
1768
1769 if (port_up) {
1770 err = mlx4_en_start_port(dev);
1771 if (err)
1772 en_err(priv, "Failed starting port\n");
1773 }
1774
1775 err = mlx4_en_moderation_update(priv);
1776 out:
1777 kfree(tmp);
1778 mutex_unlock(&mdev->state_lock);
1779 return err;
1780 }
1781
1782 static int mlx4_en_get_ts_info(struct net_device *dev,
1783 struct ethtool_ts_info *info)
1784 {
1785 struct mlx4_en_priv *priv = netdev_priv(dev);
1786 struct mlx4_en_dev *mdev = priv->mdev;
1787 int ret;
1788
1789 ret = ethtool_op_get_ts_info(dev, info);
1790 if (ret)
1791 return ret;
1792
1793 if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_TS) {
1794 info->so_timestamping |=
1795 SOF_TIMESTAMPING_TX_HARDWARE |
1796 SOF_TIMESTAMPING_RX_HARDWARE |
1797 SOF_TIMESTAMPING_RAW_HARDWARE;
1798
1799 info->tx_types =
1800 (1 << HWTSTAMP_TX_OFF) |
1801 (1 << HWTSTAMP_TX_ON);
1802
1803 info->rx_filters =
1804 (1 << HWTSTAMP_FILTER_NONE) |
1805 (1 << HWTSTAMP_FILTER_ALL);
1806
1807 if (mdev->ptp_clock)
1808 info->phc_index = ptp_clock_index(mdev->ptp_clock);
1809 }
1810
1811 return ret;
1812 }
1813
1814 static int mlx4_en_set_priv_flags(struct net_device *dev, u32 flags)
1815 {
1816 struct mlx4_en_priv *priv = netdev_priv(dev);
1817 struct mlx4_en_dev *mdev = priv->mdev;
1818 bool bf_enabled_new = !!(flags & MLX4_EN_PRIV_FLAGS_BLUEFLAME);
1819 bool bf_enabled_old = !!(priv->pflags & MLX4_EN_PRIV_FLAGS_BLUEFLAME);
1820 bool phv_enabled_new = !!(flags & MLX4_EN_PRIV_FLAGS_PHV);
1821 bool phv_enabled_old = !!(priv->pflags & MLX4_EN_PRIV_FLAGS_PHV);
1822 int i;
1823 int ret = 0;
1824
1825 if (bf_enabled_new != bf_enabled_old) {
1826 if (bf_enabled_new) {
1827 bool bf_supported = true;
1828
1829 for (i = 0; i < priv->tx_ring_num; i++)
1830 bf_supported &= priv->tx_ring[i]->bf_alloced;
1831
1832 if (!bf_supported) {
1833 en_err(priv, "BlueFlame is not supported\n");
1834 return -EINVAL;
1835 }
1836
1837 priv->pflags |= MLX4_EN_PRIV_FLAGS_BLUEFLAME;
1838 } else {
1839 priv->pflags &= ~MLX4_EN_PRIV_FLAGS_BLUEFLAME;
1840 }
1841
1842 for (i = 0; i < priv->tx_ring_num; i++)
1843 priv->tx_ring[i]->bf_enabled = bf_enabled_new;
1844
1845 en_info(priv, "BlueFlame %s\n",
1846 bf_enabled_new ? "Enabled" : "Disabled");
1847 }
1848
1849 if (phv_enabled_new != phv_enabled_old) {
1850 ret = set_phv_bit(mdev->dev, priv->port, (int)phv_enabled_new);
1851 if (ret)
1852 return ret;
1853 else if (phv_enabled_new)
1854 priv->pflags |= MLX4_EN_PRIV_FLAGS_PHV;
1855 else
1856 priv->pflags &= ~MLX4_EN_PRIV_FLAGS_PHV;
1857 en_info(priv, "PHV bit %s\n",
1858 phv_enabled_new ? "Enabled" : "Disabled");
1859 }
1860 return 0;
1861 }
1862
1863 static u32 mlx4_en_get_priv_flags(struct net_device *dev)
1864 {
1865 struct mlx4_en_priv *priv = netdev_priv(dev);
1866
1867 return priv->pflags;
1868 }
1869
1870 static int mlx4_en_get_tunable(struct net_device *dev,
1871 const struct ethtool_tunable *tuna,
1872 void *data)
1873 {
1874 const struct mlx4_en_priv *priv = netdev_priv(dev);
1875 int ret = 0;
1876
1877 switch (tuna->id) {
1878 case ETHTOOL_TX_COPYBREAK:
1879 *(u32 *)data = priv->prof->inline_thold;
1880 break;
1881 default:
1882 ret = -EINVAL;
1883 break;
1884 }
1885
1886 return ret;
1887 }
1888
1889 static int mlx4_en_set_tunable(struct net_device *dev,
1890 const struct ethtool_tunable *tuna,
1891 const void *data)
1892 {
1893 struct mlx4_en_priv *priv = netdev_priv(dev);
1894 int val, ret = 0;
1895
1896 switch (tuna->id) {
1897 case ETHTOOL_TX_COPYBREAK:
1898 val = *(u32 *)data;
1899 if (val < MIN_PKT_LEN || val > MAX_INLINE)
1900 ret = -EINVAL;
1901 else
1902 priv->prof->inline_thold = val;
1903 break;
1904 default:
1905 ret = -EINVAL;
1906 break;
1907 }
1908
1909 return ret;
1910 }
1911
1912 static int mlx4_en_get_module_info(struct net_device *dev,
1913 struct ethtool_modinfo *modinfo)
1914 {
1915 struct mlx4_en_priv *priv = netdev_priv(dev);
1916 struct mlx4_en_dev *mdev = priv->mdev;
1917 int ret;
1918 u8 data[4];
1919
1920 /* Read first 2 bytes to get Module & REV ID */
1921 ret = mlx4_get_module_info(mdev->dev, priv->port,
1922 0/*offset*/, 2/*size*/, data);
1923 if (ret < 2)
1924 return -EIO;
1925
1926 switch (data[0] /* identifier */) {
1927 case MLX4_MODULE_ID_QSFP:
1928 modinfo->type = ETH_MODULE_SFF_8436;
1929 modinfo->eeprom_len = ETH_MODULE_SFF_8436_LEN;
1930 break;
1931 case MLX4_MODULE_ID_QSFP_PLUS:
1932 if (data[1] >= 0x3) { /* revision id */
1933 modinfo->type = ETH_MODULE_SFF_8636;
1934 modinfo->eeprom_len = ETH_MODULE_SFF_8636_LEN;
1935 } else {
1936 modinfo->type = ETH_MODULE_SFF_8436;
1937 modinfo->eeprom_len = ETH_MODULE_SFF_8436_LEN;
1938 }
1939 break;
1940 case MLX4_MODULE_ID_QSFP28:
1941 modinfo->type = ETH_MODULE_SFF_8636;
1942 modinfo->eeprom_len = ETH_MODULE_SFF_8636_LEN;
1943 break;
1944 case MLX4_MODULE_ID_SFP:
1945 modinfo->type = ETH_MODULE_SFF_8472;
1946 modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN;
1947 break;
1948 default:
1949 return -ENOSYS;
1950 }
1951
1952 return 0;
1953 }
1954
1955 static int mlx4_en_get_module_eeprom(struct net_device *dev,
1956 struct ethtool_eeprom *ee,
1957 u8 *data)
1958 {
1959 struct mlx4_en_priv *priv = netdev_priv(dev);
1960 struct mlx4_en_dev *mdev = priv->mdev;
1961 int offset = ee->offset;
1962 int i = 0, ret;
1963
1964 if (ee->len == 0)
1965 return -EINVAL;
1966
1967 memset(data, 0, ee->len);
1968
1969 while (i < ee->len) {
1970 en_dbg(DRV, priv,
1971 "mlx4_get_module_info i(%d) offset(%d) len(%d)\n",
1972 i, offset, ee->len - i);
1973
1974 ret = mlx4_get_module_info(mdev->dev, priv->port,
1975 offset, ee->len - i, data + i);
1976
1977 if (!ret) /* Done reading */
1978 return 0;
1979
1980 if (ret < 0) {
1981 en_err(priv,
1982 "mlx4_get_module_info i(%d) offset(%d) bytes_to_read(%d) - FAILED (0x%x)\n",
1983 i, offset, ee->len - i, ret);
1984 return 0;
1985 }
1986
1987 i += ret;
1988 offset += ret;
1989 }
1990 return 0;
1991 }
1992
1993 static int mlx4_en_set_phys_id(struct net_device *dev,
1994 enum ethtool_phys_id_state state)
1995 {
1996 int err;
1997 u16 beacon_duration;
1998 struct mlx4_en_priv *priv = netdev_priv(dev);
1999 struct mlx4_en_dev *mdev = priv->mdev;
2000
2001 if (!(mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_PORT_BEACON))
2002 return -EOPNOTSUPP;
2003
2004 switch (state) {
2005 case ETHTOOL_ID_ACTIVE:
2006 beacon_duration = PORT_BEACON_MAX_LIMIT;
2007 break;
2008 case ETHTOOL_ID_INACTIVE:
2009 beacon_duration = 0;
2010 break;
2011 default:
2012 return -EOPNOTSUPP;
2013 }
2014
2015 err = mlx4_SET_PORT_BEACON(mdev->dev, priv->port, beacon_duration);
2016 return err;
2017 }
2018
2019 const struct ethtool_ops mlx4_en_ethtool_ops = {
2020 .get_drvinfo = mlx4_en_get_drvinfo,
2021 .get_link_ksettings = mlx4_en_get_link_ksettings,
2022 .set_link_ksettings = mlx4_en_set_link_ksettings,
2023 .get_link = ethtool_op_get_link,
2024 .get_strings = mlx4_en_get_strings,
2025 .get_sset_count = mlx4_en_get_sset_count,
2026 .get_ethtool_stats = mlx4_en_get_ethtool_stats,
2027 .self_test = mlx4_en_self_test,
2028 .set_phys_id = mlx4_en_set_phys_id,
2029 .get_wol = mlx4_en_get_wol,
2030 .set_wol = mlx4_en_set_wol,
2031 .get_msglevel = mlx4_en_get_msglevel,
2032 .set_msglevel = mlx4_en_set_msglevel,
2033 .get_coalesce = mlx4_en_get_coalesce,
2034 .set_coalesce = mlx4_en_set_coalesce,
2035 .get_pauseparam = mlx4_en_get_pauseparam,
2036 .set_pauseparam = mlx4_en_set_pauseparam,
2037 .get_ringparam = mlx4_en_get_ringparam,
2038 .set_ringparam = mlx4_en_set_ringparam,
2039 .get_rxnfc = mlx4_en_get_rxnfc,
2040 .set_rxnfc = mlx4_en_set_rxnfc,
2041 .get_rxfh_indir_size = mlx4_en_get_rxfh_indir_size,
2042 .get_rxfh_key_size = mlx4_en_get_rxfh_key_size,
2043 .get_rxfh = mlx4_en_get_rxfh,
2044 .set_rxfh = mlx4_en_set_rxfh,
2045 .get_channels = mlx4_en_get_channels,
2046 .set_channels = mlx4_en_set_channels,
2047 .get_ts_info = mlx4_en_get_ts_info,
2048 .set_priv_flags = mlx4_en_set_priv_flags,
2049 .get_priv_flags = mlx4_en_get_priv_flags,
2050 .get_tunable = mlx4_en_get_tunable,
2051 .set_tunable = mlx4_en_set_tunable,
2052 .get_module_info = mlx4_en_get_module_info,
2053 .get_module_eeprom = mlx4_en_get_module_eeprom
2054 };
2055
2056
2057
2058
2059
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