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fb: adv7393: off by one in probe function
[deliverable/linux.git] / drivers / net / ethernet / mellanox / mlx5 / core / en_main.c
1 /*
2 * Copyright (c) 2015-2016, 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 #include <net/tc_act/tc_gact.h>
34 #include <net/pkt_cls.h>
35 #include <linux/mlx5/fs.h>
36 #include <net/vxlan.h>
37 #include "en.h"
38 #include "en_tc.h"
39 #include "eswitch.h"
40 #include "vxlan.h"
41
42 enum {
43 MLX5_EN_QP_FLUSH_TIMEOUT_MS = 5000,
44 MLX5_EN_QP_FLUSH_MSLEEP_QUANT = 20,
45 MLX5_EN_QP_FLUSH_MAX_ITER = MLX5_EN_QP_FLUSH_TIMEOUT_MS /
46 MLX5_EN_QP_FLUSH_MSLEEP_QUANT,
47 };
48
49 struct mlx5e_rq_param {
50 u32 rqc[MLX5_ST_SZ_DW(rqc)];
51 struct mlx5_wq_param wq;
52 bool am_enabled;
53 };
54
55 struct mlx5e_sq_param {
56 u32 sqc[MLX5_ST_SZ_DW(sqc)];
57 struct mlx5_wq_param wq;
58 u16 max_inline;
59 u8 min_inline_mode;
60 bool icosq;
61 };
62
63 struct mlx5e_cq_param {
64 u32 cqc[MLX5_ST_SZ_DW(cqc)];
65 struct mlx5_wq_param wq;
66 u16 eq_ix;
67 u8 cq_period_mode;
68 };
69
70 struct mlx5e_channel_param {
71 struct mlx5e_rq_param rq;
72 struct mlx5e_sq_param sq;
73 struct mlx5e_sq_param icosq;
74 struct mlx5e_cq_param rx_cq;
75 struct mlx5e_cq_param tx_cq;
76 struct mlx5e_cq_param icosq_cq;
77 };
78
79 static void mlx5e_update_carrier(struct mlx5e_priv *priv)
80 {
81 struct mlx5_core_dev *mdev = priv->mdev;
82 u8 port_state;
83
84 port_state = mlx5_query_vport_state(mdev,
85 MLX5_QUERY_VPORT_STATE_IN_OP_MOD_VNIC_VPORT, 0);
86
87 if (port_state == VPORT_STATE_UP) {
88 netdev_info(priv->netdev, "Link up\n");
89 netif_carrier_on(priv->netdev);
90 } else {
91 netdev_info(priv->netdev, "Link down\n");
92 netif_carrier_off(priv->netdev);
93 }
94 }
95
96 static void mlx5e_update_carrier_work(struct work_struct *work)
97 {
98 struct mlx5e_priv *priv = container_of(work, struct mlx5e_priv,
99 update_carrier_work);
100
101 mutex_lock(&priv->state_lock);
102 if (test_bit(MLX5E_STATE_OPENED, &priv->state))
103 mlx5e_update_carrier(priv);
104 mutex_unlock(&priv->state_lock);
105 }
106
107 static void mlx5e_tx_timeout_work(struct work_struct *work)
108 {
109 struct mlx5e_priv *priv = container_of(work, struct mlx5e_priv,
110 tx_timeout_work);
111 int err;
112
113 rtnl_lock();
114 mutex_lock(&priv->state_lock);
115 if (!test_bit(MLX5E_STATE_OPENED, &priv->state))
116 goto unlock;
117 mlx5e_close_locked(priv->netdev);
118 err = mlx5e_open_locked(priv->netdev);
119 if (err)
120 netdev_err(priv->netdev, "mlx5e_open_locked failed recovering from a tx_timeout, err(%d).\n",
121 err);
122 unlock:
123 mutex_unlock(&priv->state_lock);
124 rtnl_unlock();
125 }
126
127 static void mlx5e_update_sw_counters(struct mlx5e_priv *priv)
128 {
129 struct mlx5e_sw_stats *s = &priv->stats.sw;
130 struct mlx5e_rq_stats *rq_stats;
131 struct mlx5e_sq_stats *sq_stats;
132 u64 tx_offload_none = 0;
133 int i, j;
134
135 memset(s, 0, sizeof(*s));
136 for (i = 0; i < priv->params.num_channels; i++) {
137 rq_stats = &priv->channel[i]->rq.stats;
138
139 s->rx_packets += rq_stats->packets;
140 s->rx_bytes += rq_stats->bytes;
141 s->rx_lro_packets += rq_stats->lro_packets;
142 s->rx_lro_bytes += rq_stats->lro_bytes;
143 s->rx_csum_none += rq_stats->csum_none;
144 s->rx_csum_complete += rq_stats->csum_complete;
145 s->rx_csum_unnecessary_inner += rq_stats->csum_unnecessary_inner;
146 s->rx_wqe_err += rq_stats->wqe_err;
147 s->rx_mpwqe_filler += rq_stats->mpwqe_filler;
148 s->rx_mpwqe_frag += rq_stats->mpwqe_frag;
149 s->rx_buff_alloc_err += rq_stats->buff_alloc_err;
150 s->rx_cqe_compress_blks += rq_stats->cqe_compress_blks;
151 s->rx_cqe_compress_pkts += rq_stats->cqe_compress_pkts;
152
153 for (j = 0; j < priv->params.num_tc; j++) {
154 sq_stats = &priv->channel[i]->sq[j].stats;
155
156 s->tx_packets += sq_stats->packets;
157 s->tx_bytes += sq_stats->bytes;
158 s->tx_tso_packets += sq_stats->tso_packets;
159 s->tx_tso_bytes += sq_stats->tso_bytes;
160 s->tx_tso_inner_packets += sq_stats->tso_inner_packets;
161 s->tx_tso_inner_bytes += sq_stats->tso_inner_bytes;
162 s->tx_queue_stopped += sq_stats->stopped;
163 s->tx_queue_wake += sq_stats->wake;
164 s->tx_queue_dropped += sq_stats->dropped;
165 s->tx_csum_partial_inner += sq_stats->csum_partial_inner;
166 tx_offload_none += sq_stats->csum_none;
167 }
168 }
169
170 /* Update calculated offload counters */
171 s->tx_csum_partial = s->tx_packets - tx_offload_none - s->tx_csum_partial_inner;
172 s->rx_csum_unnecessary = s->rx_packets - s->rx_csum_none - s->rx_csum_complete;
173
174 s->link_down_events_phy = MLX5_GET(ppcnt_reg,
175 priv->stats.pport.phy_counters,
176 counter_set.phys_layer_cntrs.link_down_events);
177 }
178
179 static void mlx5e_update_vport_counters(struct mlx5e_priv *priv)
180 {
181 int outlen = MLX5_ST_SZ_BYTES(query_vport_counter_out);
182 u32 *out = (u32 *)priv->stats.vport.query_vport_out;
183 u32 in[MLX5_ST_SZ_DW(query_vport_counter_in)];
184 struct mlx5_core_dev *mdev = priv->mdev;
185
186 memset(in, 0, sizeof(in));
187
188 MLX5_SET(query_vport_counter_in, in, opcode,
189 MLX5_CMD_OP_QUERY_VPORT_COUNTER);
190 MLX5_SET(query_vport_counter_in, in, op_mod, 0);
191 MLX5_SET(query_vport_counter_in, in, other_vport, 0);
192
193 memset(out, 0, outlen);
194
195 mlx5_cmd_exec(mdev, in, sizeof(in), out, outlen);
196 }
197
198 static void mlx5e_update_pport_counters(struct mlx5e_priv *priv)
199 {
200 struct mlx5e_pport_stats *pstats = &priv->stats.pport;
201 struct mlx5_core_dev *mdev = priv->mdev;
202 int sz = MLX5_ST_SZ_BYTES(ppcnt_reg);
203 int prio;
204 void *out;
205 u32 *in;
206
207 in = mlx5_vzalloc(sz);
208 if (!in)
209 goto free_out;
210
211 MLX5_SET(ppcnt_reg, in, local_port, 1);
212
213 out = pstats->IEEE_802_3_counters;
214 MLX5_SET(ppcnt_reg, in, grp, MLX5_IEEE_802_3_COUNTERS_GROUP);
215 mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0);
216
217 out = pstats->RFC_2863_counters;
218 MLX5_SET(ppcnt_reg, in, grp, MLX5_RFC_2863_COUNTERS_GROUP);
219 mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0);
220
221 out = pstats->RFC_2819_counters;
222 MLX5_SET(ppcnt_reg, in, grp, MLX5_RFC_2819_COUNTERS_GROUP);
223 mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0);
224
225 out = pstats->phy_counters;
226 MLX5_SET(ppcnt_reg, in, grp, MLX5_PHYSICAL_LAYER_COUNTERS_GROUP);
227 mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0);
228
229 MLX5_SET(ppcnt_reg, in, grp, MLX5_PER_PRIORITY_COUNTERS_GROUP);
230 for (prio = 0; prio < NUM_PPORT_PRIO; prio++) {
231 out = pstats->per_prio_counters[prio];
232 MLX5_SET(ppcnt_reg, in, prio_tc, prio);
233 mlx5_core_access_reg(mdev, in, sz, out, sz,
234 MLX5_REG_PPCNT, 0, 0);
235 }
236
237 free_out:
238 kvfree(in);
239 }
240
241 static void mlx5e_update_q_counter(struct mlx5e_priv *priv)
242 {
243 struct mlx5e_qcounter_stats *qcnt = &priv->stats.qcnt;
244
245 if (!priv->q_counter)
246 return;
247
248 mlx5_core_query_out_of_buffer(priv->mdev, priv->q_counter,
249 &qcnt->rx_out_of_buffer);
250 }
251
252 void mlx5e_update_stats(struct mlx5e_priv *priv)
253 {
254 mlx5e_update_q_counter(priv);
255 mlx5e_update_vport_counters(priv);
256 mlx5e_update_pport_counters(priv);
257 mlx5e_update_sw_counters(priv);
258 }
259
260 void mlx5e_update_stats_work(struct work_struct *work)
261 {
262 struct delayed_work *dwork = to_delayed_work(work);
263 struct mlx5e_priv *priv = container_of(dwork, struct mlx5e_priv,
264 update_stats_work);
265 mutex_lock(&priv->state_lock);
266 if (test_bit(MLX5E_STATE_OPENED, &priv->state)) {
267 priv->profile->update_stats(priv);
268 queue_delayed_work(priv->wq, dwork,
269 msecs_to_jiffies(MLX5E_UPDATE_STATS_INTERVAL));
270 }
271 mutex_unlock(&priv->state_lock);
272 }
273
274 static void mlx5e_async_event(struct mlx5_core_dev *mdev, void *vpriv,
275 enum mlx5_dev_event event, unsigned long param)
276 {
277 struct mlx5e_priv *priv = vpriv;
278
279 if (!test_bit(MLX5E_STATE_ASYNC_EVENTS_ENABLED, &priv->state))
280 return;
281
282 switch (event) {
283 case MLX5_DEV_EVENT_PORT_UP:
284 case MLX5_DEV_EVENT_PORT_DOWN:
285 queue_work(priv->wq, &priv->update_carrier_work);
286 break;
287
288 default:
289 break;
290 }
291 }
292
293 static void mlx5e_enable_async_events(struct mlx5e_priv *priv)
294 {
295 set_bit(MLX5E_STATE_ASYNC_EVENTS_ENABLED, &priv->state);
296 }
297
298 static void mlx5e_disable_async_events(struct mlx5e_priv *priv)
299 {
300 clear_bit(MLX5E_STATE_ASYNC_EVENTS_ENABLED, &priv->state);
301 synchronize_irq(mlx5_get_msix_vec(priv->mdev, MLX5_EQ_VEC_ASYNC));
302 }
303
304 #define MLX5E_HW2SW_MTU(hwmtu) (hwmtu - (ETH_HLEN + VLAN_HLEN + ETH_FCS_LEN))
305 #define MLX5E_SW2HW_MTU(swmtu) (swmtu + (ETH_HLEN + VLAN_HLEN + ETH_FCS_LEN))
306
307 static int mlx5e_create_rq(struct mlx5e_channel *c,
308 struct mlx5e_rq_param *param,
309 struct mlx5e_rq *rq)
310 {
311 struct mlx5e_priv *priv = c->priv;
312 struct mlx5_core_dev *mdev = priv->mdev;
313 void *rqc = param->rqc;
314 void *rqc_wq = MLX5_ADDR_OF(rqc, rqc, wq);
315 u32 byte_count;
316 int wq_sz;
317 int err;
318 int i;
319
320 param->wq.db_numa_node = cpu_to_node(c->cpu);
321
322 err = mlx5_wq_ll_create(mdev, &param->wq, rqc_wq, &rq->wq,
323 &rq->wq_ctrl);
324 if (err)
325 return err;
326
327 rq->wq.db = &rq->wq.db[MLX5_RCV_DBR];
328
329 wq_sz = mlx5_wq_ll_get_size(&rq->wq);
330
331 switch (priv->params.rq_wq_type) {
332 case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ:
333 rq->wqe_info = kzalloc_node(wq_sz * sizeof(*rq->wqe_info),
334 GFP_KERNEL, cpu_to_node(c->cpu));
335 if (!rq->wqe_info) {
336 err = -ENOMEM;
337 goto err_rq_wq_destroy;
338 }
339 rq->handle_rx_cqe = mlx5e_handle_rx_cqe_mpwrq;
340 rq->alloc_wqe = mlx5e_alloc_rx_mpwqe;
341 rq->dealloc_wqe = mlx5e_dealloc_rx_mpwqe;
342
343 rq->mpwqe_stride_sz = BIT(priv->params.mpwqe_log_stride_sz);
344 rq->mpwqe_num_strides = BIT(priv->params.mpwqe_log_num_strides);
345 rq->wqe_sz = rq->mpwqe_stride_sz * rq->mpwqe_num_strides;
346 byte_count = rq->wqe_sz;
347 break;
348 default: /* MLX5_WQ_TYPE_LINKED_LIST */
349 rq->skb = kzalloc_node(wq_sz * sizeof(*rq->skb), GFP_KERNEL,
350 cpu_to_node(c->cpu));
351 if (!rq->skb) {
352 err = -ENOMEM;
353 goto err_rq_wq_destroy;
354 }
355 rq->handle_rx_cqe = mlx5e_handle_rx_cqe;
356 rq->alloc_wqe = mlx5e_alloc_rx_wqe;
357 rq->dealloc_wqe = mlx5e_dealloc_rx_wqe;
358
359 rq->wqe_sz = (priv->params.lro_en) ?
360 priv->params.lro_wqe_sz :
361 MLX5E_SW2HW_MTU(priv->netdev->mtu);
362 rq->wqe_sz = SKB_DATA_ALIGN(rq->wqe_sz);
363 byte_count = rq->wqe_sz;
364 byte_count |= MLX5_HW_START_PADDING;
365 }
366
367 for (i = 0; i < wq_sz; i++) {
368 struct mlx5e_rx_wqe *wqe = mlx5_wq_ll_get_wqe(&rq->wq, i);
369
370 wqe->data.byte_count = cpu_to_be32(byte_count);
371 }
372
373 INIT_WORK(&rq->am.work, mlx5e_rx_am_work);
374 rq->am.mode = priv->params.rx_cq_period_mode;
375
376 rq->wq_type = priv->params.rq_wq_type;
377 rq->pdev = c->pdev;
378 rq->netdev = c->netdev;
379 rq->tstamp = &priv->tstamp;
380 rq->channel = c;
381 rq->ix = c->ix;
382 rq->priv = c->priv;
383 rq->mkey_be = c->mkey_be;
384 rq->umr_mkey_be = cpu_to_be32(c->priv->umr_mkey.key);
385
386 return 0;
387
388 err_rq_wq_destroy:
389 mlx5_wq_destroy(&rq->wq_ctrl);
390
391 return err;
392 }
393
394 static void mlx5e_destroy_rq(struct mlx5e_rq *rq)
395 {
396 switch (rq->wq_type) {
397 case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ:
398 kfree(rq->wqe_info);
399 break;
400 default: /* MLX5_WQ_TYPE_LINKED_LIST */
401 kfree(rq->skb);
402 }
403
404 mlx5_wq_destroy(&rq->wq_ctrl);
405 }
406
407 static int mlx5e_enable_rq(struct mlx5e_rq *rq, struct mlx5e_rq_param *param)
408 {
409 struct mlx5e_priv *priv = rq->priv;
410 struct mlx5_core_dev *mdev = priv->mdev;
411
412 void *in;
413 void *rqc;
414 void *wq;
415 int inlen;
416 int err;
417
418 inlen = MLX5_ST_SZ_BYTES(create_rq_in) +
419 sizeof(u64) * rq->wq_ctrl.buf.npages;
420 in = mlx5_vzalloc(inlen);
421 if (!in)
422 return -ENOMEM;
423
424 rqc = MLX5_ADDR_OF(create_rq_in, in, ctx);
425 wq = MLX5_ADDR_OF(rqc, rqc, wq);
426
427 memcpy(rqc, param->rqc, sizeof(param->rqc));
428
429 MLX5_SET(rqc, rqc, cqn, rq->cq.mcq.cqn);
430 MLX5_SET(rqc, rqc, state, MLX5_RQC_STATE_RST);
431 MLX5_SET(rqc, rqc, flush_in_error_en, 1);
432 MLX5_SET(rqc, rqc, vsd, priv->params.vlan_strip_disable);
433 MLX5_SET(wq, wq, log_wq_pg_sz, rq->wq_ctrl.buf.page_shift -
434 MLX5_ADAPTER_PAGE_SHIFT);
435 MLX5_SET64(wq, wq, dbr_addr, rq->wq_ctrl.db.dma);
436
437 mlx5_fill_page_array(&rq->wq_ctrl.buf,
438 (__be64 *)MLX5_ADDR_OF(wq, wq, pas));
439
440 err = mlx5_core_create_rq(mdev, in, inlen, &rq->rqn);
441
442 kvfree(in);
443
444 return err;
445 }
446
447 static int mlx5e_modify_rq_state(struct mlx5e_rq *rq, int curr_state,
448 int next_state)
449 {
450 struct mlx5e_channel *c = rq->channel;
451 struct mlx5e_priv *priv = c->priv;
452 struct mlx5_core_dev *mdev = priv->mdev;
453
454 void *in;
455 void *rqc;
456 int inlen;
457 int err;
458
459 inlen = MLX5_ST_SZ_BYTES(modify_rq_in);
460 in = mlx5_vzalloc(inlen);
461 if (!in)
462 return -ENOMEM;
463
464 rqc = MLX5_ADDR_OF(modify_rq_in, in, ctx);
465
466 MLX5_SET(modify_rq_in, in, rq_state, curr_state);
467 MLX5_SET(rqc, rqc, state, next_state);
468
469 err = mlx5_core_modify_rq(mdev, rq->rqn, in, inlen);
470
471 kvfree(in);
472
473 return err;
474 }
475
476 static int mlx5e_modify_rq_vsd(struct mlx5e_rq *rq, bool vsd)
477 {
478 struct mlx5e_channel *c = rq->channel;
479 struct mlx5e_priv *priv = c->priv;
480 struct mlx5_core_dev *mdev = priv->mdev;
481
482 void *in;
483 void *rqc;
484 int inlen;
485 int err;
486
487 inlen = MLX5_ST_SZ_BYTES(modify_rq_in);
488 in = mlx5_vzalloc(inlen);
489 if (!in)
490 return -ENOMEM;
491
492 rqc = MLX5_ADDR_OF(modify_rq_in, in, ctx);
493
494 MLX5_SET(modify_rq_in, in, rq_state, MLX5_RQC_STATE_RDY);
495 MLX5_SET64(modify_rq_in, in, modify_bitmask, MLX5_RQ_BITMASK_VSD);
496 MLX5_SET(rqc, rqc, vsd, vsd);
497 MLX5_SET(rqc, rqc, state, MLX5_RQC_STATE_RDY);
498
499 err = mlx5_core_modify_rq(mdev, rq->rqn, in, inlen);
500
501 kvfree(in);
502
503 return err;
504 }
505
506 static void mlx5e_disable_rq(struct mlx5e_rq *rq)
507 {
508 mlx5_core_destroy_rq(rq->priv->mdev, rq->rqn);
509 }
510
511 static int mlx5e_wait_for_min_rx_wqes(struct mlx5e_rq *rq)
512 {
513 unsigned long exp_time = jiffies + msecs_to_jiffies(20000);
514 struct mlx5e_channel *c = rq->channel;
515 struct mlx5e_priv *priv = c->priv;
516 struct mlx5_wq_ll *wq = &rq->wq;
517
518 while (time_before(jiffies, exp_time)) {
519 if (wq->cur_sz >= priv->params.min_rx_wqes)
520 return 0;
521
522 msleep(20);
523 }
524
525 return -ETIMEDOUT;
526 }
527
528 static int mlx5e_open_rq(struct mlx5e_channel *c,
529 struct mlx5e_rq_param *param,
530 struct mlx5e_rq *rq)
531 {
532 struct mlx5e_sq *sq = &c->icosq;
533 u16 pi = sq->pc & sq->wq.sz_m1;
534 int err;
535
536 err = mlx5e_create_rq(c, param, rq);
537 if (err)
538 return err;
539
540 err = mlx5e_enable_rq(rq, param);
541 if (err)
542 goto err_destroy_rq;
543
544 err = mlx5e_modify_rq_state(rq, MLX5_RQC_STATE_RST, MLX5_RQC_STATE_RDY);
545 if (err)
546 goto err_disable_rq;
547
548 if (param->am_enabled)
549 set_bit(MLX5E_RQ_STATE_AM, &c->rq.state);
550
551 set_bit(MLX5E_RQ_STATE_POST_WQES_ENABLE, &rq->state);
552
553 sq->ico_wqe_info[pi].opcode = MLX5_OPCODE_NOP;
554 sq->ico_wqe_info[pi].num_wqebbs = 1;
555 mlx5e_send_nop(sq, true); /* trigger mlx5e_post_rx_wqes() */
556
557 return 0;
558
559 err_disable_rq:
560 mlx5e_disable_rq(rq);
561 err_destroy_rq:
562 mlx5e_destroy_rq(rq);
563
564 return err;
565 }
566
567 static void mlx5e_close_rq(struct mlx5e_rq *rq)
568 {
569 int tout = 0;
570 int err;
571
572 clear_bit(MLX5E_RQ_STATE_POST_WQES_ENABLE, &rq->state);
573 napi_synchronize(&rq->channel->napi); /* prevent mlx5e_post_rx_wqes */
574
575 err = mlx5e_modify_rq_state(rq, MLX5_RQC_STATE_RDY, MLX5_RQC_STATE_ERR);
576 while (!mlx5_wq_ll_is_empty(&rq->wq) && !err &&
577 tout++ < MLX5_EN_QP_FLUSH_MAX_ITER)
578 msleep(MLX5_EN_QP_FLUSH_MSLEEP_QUANT);
579
580 if (err || tout == MLX5_EN_QP_FLUSH_MAX_ITER)
581 set_bit(MLX5E_RQ_STATE_FLUSH_TIMEOUT, &rq->state);
582
583 /* avoid destroying rq before mlx5e_poll_rx_cq() is done with it */
584 napi_synchronize(&rq->channel->napi);
585
586 cancel_work_sync(&rq->am.work);
587
588 mlx5e_disable_rq(rq);
589 mlx5e_free_rx_descs(rq);
590 mlx5e_destroy_rq(rq);
591 }
592
593 static void mlx5e_free_sq_db(struct mlx5e_sq *sq)
594 {
595 kfree(sq->wqe_info);
596 kfree(sq->dma_fifo);
597 kfree(sq->skb);
598 }
599
600 static int mlx5e_alloc_sq_db(struct mlx5e_sq *sq, int numa)
601 {
602 int wq_sz = mlx5_wq_cyc_get_size(&sq->wq);
603 int df_sz = wq_sz * MLX5_SEND_WQEBB_NUM_DS;
604
605 sq->skb = kzalloc_node(wq_sz * sizeof(*sq->skb), GFP_KERNEL, numa);
606 sq->dma_fifo = kzalloc_node(df_sz * sizeof(*sq->dma_fifo), GFP_KERNEL,
607 numa);
608 sq->wqe_info = kzalloc_node(wq_sz * sizeof(*sq->wqe_info), GFP_KERNEL,
609 numa);
610
611 if (!sq->skb || !sq->dma_fifo || !sq->wqe_info) {
612 mlx5e_free_sq_db(sq);
613 return -ENOMEM;
614 }
615
616 sq->dma_fifo_mask = df_sz - 1;
617
618 return 0;
619 }
620
621 static int mlx5e_create_sq(struct mlx5e_channel *c,
622 int tc,
623 struct mlx5e_sq_param *param,
624 struct mlx5e_sq *sq)
625 {
626 struct mlx5e_priv *priv = c->priv;
627 struct mlx5_core_dev *mdev = priv->mdev;
628
629 void *sqc = param->sqc;
630 void *sqc_wq = MLX5_ADDR_OF(sqc, sqc, wq);
631 int err;
632
633 err = mlx5_alloc_map_uar(mdev, &sq->uar, !!MLX5_CAP_GEN(mdev, bf));
634 if (err)
635 return err;
636
637 param->wq.db_numa_node = cpu_to_node(c->cpu);
638
639 err = mlx5_wq_cyc_create(mdev, &param->wq, sqc_wq, &sq->wq,
640 &sq->wq_ctrl);
641 if (err)
642 goto err_unmap_free_uar;
643
644 sq->wq.db = &sq->wq.db[MLX5_SND_DBR];
645 if (sq->uar.bf_map) {
646 set_bit(MLX5E_SQ_STATE_BF_ENABLE, &sq->state);
647 sq->uar_map = sq->uar.bf_map;
648 } else {
649 sq->uar_map = sq->uar.map;
650 }
651 sq->bf_buf_size = (1 << MLX5_CAP_GEN(mdev, log_bf_reg_size)) / 2;
652 sq->max_inline = param->max_inline;
653 sq->min_inline_mode =
654 MLX5_CAP_ETH(mdev, wqe_inline_mode) == MLX5E_INLINE_MODE_VPORT_CONTEXT ?
655 param->min_inline_mode : 0;
656
657 err = mlx5e_alloc_sq_db(sq, cpu_to_node(c->cpu));
658 if (err)
659 goto err_sq_wq_destroy;
660
661 if (param->icosq) {
662 u8 wq_sz = mlx5_wq_cyc_get_size(&sq->wq);
663
664 sq->ico_wqe_info = kzalloc_node(sizeof(*sq->ico_wqe_info) *
665 wq_sz,
666 GFP_KERNEL,
667 cpu_to_node(c->cpu));
668 if (!sq->ico_wqe_info) {
669 err = -ENOMEM;
670 goto err_free_sq_db;
671 }
672 } else {
673 int txq_ix;
674
675 txq_ix = c->ix + tc * priv->params.num_channels;
676 sq->txq = netdev_get_tx_queue(priv->netdev, txq_ix);
677 priv->txq_to_sq_map[txq_ix] = sq;
678 }
679
680 sq->pdev = c->pdev;
681 sq->tstamp = &priv->tstamp;
682 sq->mkey_be = c->mkey_be;
683 sq->channel = c;
684 sq->tc = tc;
685 sq->edge = (sq->wq.sz_m1 + 1) - MLX5_SEND_WQE_MAX_WQEBBS;
686 sq->bf_budget = MLX5E_SQ_BF_BUDGET;
687
688 return 0;
689
690 err_free_sq_db:
691 mlx5e_free_sq_db(sq);
692
693 err_sq_wq_destroy:
694 mlx5_wq_destroy(&sq->wq_ctrl);
695
696 err_unmap_free_uar:
697 mlx5_unmap_free_uar(mdev, &sq->uar);
698
699 return err;
700 }
701
702 static void mlx5e_destroy_sq(struct mlx5e_sq *sq)
703 {
704 struct mlx5e_channel *c = sq->channel;
705 struct mlx5e_priv *priv = c->priv;
706
707 kfree(sq->ico_wqe_info);
708 mlx5e_free_sq_db(sq);
709 mlx5_wq_destroy(&sq->wq_ctrl);
710 mlx5_unmap_free_uar(priv->mdev, &sq->uar);
711 }
712
713 static int mlx5e_enable_sq(struct mlx5e_sq *sq, struct mlx5e_sq_param *param)
714 {
715 struct mlx5e_channel *c = sq->channel;
716 struct mlx5e_priv *priv = c->priv;
717 struct mlx5_core_dev *mdev = priv->mdev;
718
719 void *in;
720 void *sqc;
721 void *wq;
722 int inlen;
723 int err;
724
725 inlen = MLX5_ST_SZ_BYTES(create_sq_in) +
726 sizeof(u64) * sq->wq_ctrl.buf.npages;
727 in = mlx5_vzalloc(inlen);
728 if (!in)
729 return -ENOMEM;
730
731 sqc = MLX5_ADDR_OF(create_sq_in, in, ctx);
732 wq = MLX5_ADDR_OF(sqc, sqc, wq);
733
734 memcpy(sqc, param->sqc, sizeof(param->sqc));
735
736 MLX5_SET(sqc, sqc, tis_num_0, param->icosq ? 0 : priv->tisn[sq->tc]);
737 MLX5_SET(sqc, sqc, cqn, sq->cq.mcq.cqn);
738 MLX5_SET(sqc, sqc, min_wqe_inline_mode, sq->min_inline_mode);
739 MLX5_SET(sqc, sqc, state, MLX5_SQC_STATE_RST);
740 MLX5_SET(sqc, sqc, tis_lst_sz, param->icosq ? 0 : 1);
741 MLX5_SET(sqc, sqc, flush_in_error_en, 1);
742
743 MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_CYCLIC);
744 MLX5_SET(wq, wq, uar_page, sq->uar.index);
745 MLX5_SET(wq, wq, log_wq_pg_sz, sq->wq_ctrl.buf.page_shift -
746 MLX5_ADAPTER_PAGE_SHIFT);
747 MLX5_SET64(wq, wq, dbr_addr, sq->wq_ctrl.db.dma);
748
749 mlx5_fill_page_array(&sq->wq_ctrl.buf,
750 (__be64 *)MLX5_ADDR_OF(wq, wq, pas));
751
752 err = mlx5_core_create_sq(mdev, in, inlen, &sq->sqn);
753
754 kvfree(in);
755
756 return err;
757 }
758
759 static int mlx5e_modify_sq(struct mlx5e_sq *sq, int curr_state,
760 int next_state, bool update_rl, int rl_index)
761 {
762 struct mlx5e_channel *c = sq->channel;
763 struct mlx5e_priv *priv = c->priv;
764 struct mlx5_core_dev *mdev = priv->mdev;
765
766 void *in;
767 void *sqc;
768 int inlen;
769 int err;
770
771 inlen = MLX5_ST_SZ_BYTES(modify_sq_in);
772 in = mlx5_vzalloc(inlen);
773 if (!in)
774 return -ENOMEM;
775
776 sqc = MLX5_ADDR_OF(modify_sq_in, in, ctx);
777
778 MLX5_SET(modify_sq_in, in, sq_state, curr_state);
779 MLX5_SET(sqc, sqc, state, next_state);
780 if (update_rl && next_state == MLX5_SQC_STATE_RDY) {
781 MLX5_SET64(modify_sq_in, in, modify_bitmask, 1);
782 MLX5_SET(sqc, sqc, packet_pacing_rate_limit_index, rl_index);
783 }
784
785 err = mlx5_core_modify_sq(mdev, sq->sqn, in, inlen);
786
787 kvfree(in);
788
789 return err;
790 }
791
792 static void mlx5e_disable_sq(struct mlx5e_sq *sq)
793 {
794 struct mlx5e_channel *c = sq->channel;
795 struct mlx5e_priv *priv = c->priv;
796 struct mlx5_core_dev *mdev = priv->mdev;
797
798 mlx5_core_destroy_sq(mdev, sq->sqn);
799 if (sq->rate_limit)
800 mlx5_rl_remove_rate(mdev, sq->rate_limit);
801 }
802
803 static int mlx5e_open_sq(struct mlx5e_channel *c,
804 int tc,
805 struct mlx5e_sq_param *param,
806 struct mlx5e_sq *sq)
807 {
808 int err;
809
810 err = mlx5e_create_sq(c, tc, param, sq);
811 if (err)
812 return err;
813
814 err = mlx5e_enable_sq(sq, param);
815 if (err)
816 goto err_destroy_sq;
817
818 err = mlx5e_modify_sq(sq, MLX5_SQC_STATE_RST, MLX5_SQC_STATE_RDY,
819 false, 0);
820 if (err)
821 goto err_disable_sq;
822
823 if (sq->txq) {
824 set_bit(MLX5E_SQ_STATE_WAKE_TXQ_ENABLE, &sq->state);
825 netdev_tx_reset_queue(sq->txq);
826 netif_tx_start_queue(sq->txq);
827 }
828
829 return 0;
830
831 err_disable_sq:
832 mlx5e_disable_sq(sq);
833 err_destroy_sq:
834 mlx5e_destroy_sq(sq);
835
836 return err;
837 }
838
839 static inline void netif_tx_disable_queue(struct netdev_queue *txq)
840 {
841 __netif_tx_lock_bh(txq);
842 netif_tx_stop_queue(txq);
843 __netif_tx_unlock_bh(txq);
844 }
845
846 static void mlx5e_close_sq(struct mlx5e_sq *sq)
847 {
848 int tout = 0;
849 int err;
850
851 if (sq->txq) {
852 clear_bit(MLX5E_SQ_STATE_WAKE_TXQ_ENABLE, &sq->state);
853 /* prevent netif_tx_wake_queue */
854 napi_synchronize(&sq->channel->napi);
855 netif_tx_disable_queue(sq->txq);
856
857 /* ensure hw is notified of all pending wqes */
858 if (mlx5e_sq_has_room_for(sq, 1))
859 mlx5e_send_nop(sq, true);
860
861 err = mlx5e_modify_sq(sq, MLX5_SQC_STATE_RDY,
862 MLX5_SQC_STATE_ERR, false, 0);
863 if (err)
864 set_bit(MLX5E_SQ_STATE_TX_TIMEOUT, &sq->state);
865 }
866
867 /* wait till sq is empty, unless a TX timeout occurred on this SQ */
868 while (sq->cc != sq->pc &&
869 !test_bit(MLX5E_SQ_STATE_TX_TIMEOUT, &sq->state)) {
870 msleep(MLX5_EN_QP_FLUSH_MSLEEP_QUANT);
871 if (tout++ > MLX5_EN_QP_FLUSH_MAX_ITER)
872 set_bit(MLX5E_SQ_STATE_TX_TIMEOUT, &sq->state);
873 }
874
875 /* avoid destroying sq before mlx5e_poll_tx_cq() is done with it */
876 napi_synchronize(&sq->channel->napi);
877
878 mlx5e_free_tx_descs(sq);
879 mlx5e_disable_sq(sq);
880 mlx5e_destroy_sq(sq);
881 }
882
883 static int mlx5e_create_cq(struct mlx5e_channel *c,
884 struct mlx5e_cq_param *param,
885 struct mlx5e_cq *cq)
886 {
887 struct mlx5e_priv *priv = c->priv;
888 struct mlx5_core_dev *mdev = priv->mdev;
889 struct mlx5_core_cq *mcq = &cq->mcq;
890 int eqn_not_used;
891 unsigned int irqn;
892 int err;
893 u32 i;
894
895 param->wq.buf_numa_node = cpu_to_node(c->cpu);
896 param->wq.db_numa_node = cpu_to_node(c->cpu);
897 param->eq_ix = c->ix;
898
899 err = mlx5_cqwq_create(mdev, &param->wq, param->cqc, &cq->wq,
900 &cq->wq_ctrl);
901 if (err)
902 return err;
903
904 mlx5_vector2eqn(mdev, param->eq_ix, &eqn_not_used, &irqn);
905
906 cq->napi = &c->napi;
907
908 mcq->cqe_sz = 64;
909 mcq->set_ci_db = cq->wq_ctrl.db.db;
910 mcq->arm_db = cq->wq_ctrl.db.db + 1;
911 *mcq->set_ci_db = 0;
912 *mcq->arm_db = 0;
913 mcq->vector = param->eq_ix;
914 mcq->comp = mlx5e_completion_event;
915 mcq->event = mlx5e_cq_error_event;
916 mcq->irqn = irqn;
917 mcq->uar = &mdev->mlx5e_res.cq_uar;
918
919 for (i = 0; i < mlx5_cqwq_get_size(&cq->wq); i++) {
920 struct mlx5_cqe64 *cqe = mlx5_cqwq_get_wqe(&cq->wq, i);
921
922 cqe->op_own = 0xf1;
923 }
924
925 cq->channel = c;
926 cq->priv = priv;
927
928 return 0;
929 }
930
931 static void mlx5e_destroy_cq(struct mlx5e_cq *cq)
932 {
933 mlx5_wq_destroy(&cq->wq_ctrl);
934 }
935
936 static int mlx5e_enable_cq(struct mlx5e_cq *cq, struct mlx5e_cq_param *param)
937 {
938 struct mlx5e_priv *priv = cq->priv;
939 struct mlx5_core_dev *mdev = priv->mdev;
940 struct mlx5_core_cq *mcq = &cq->mcq;
941
942 void *in;
943 void *cqc;
944 int inlen;
945 unsigned int irqn_not_used;
946 int eqn;
947 int err;
948
949 inlen = MLX5_ST_SZ_BYTES(create_cq_in) +
950 sizeof(u64) * cq->wq_ctrl.buf.npages;
951 in = mlx5_vzalloc(inlen);
952 if (!in)
953 return -ENOMEM;
954
955 cqc = MLX5_ADDR_OF(create_cq_in, in, cq_context);
956
957 memcpy(cqc, param->cqc, sizeof(param->cqc));
958
959 mlx5_fill_page_array(&cq->wq_ctrl.buf,
960 (__be64 *)MLX5_ADDR_OF(create_cq_in, in, pas));
961
962 mlx5_vector2eqn(mdev, param->eq_ix, &eqn, &irqn_not_used);
963
964 MLX5_SET(cqc, cqc, cq_period_mode, param->cq_period_mode);
965 MLX5_SET(cqc, cqc, c_eqn, eqn);
966 MLX5_SET(cqc, cqc, uar_page, mcq->uar->index);
967 MLX5_SET(cqc, cqc, log_page_size, cq->wq_ctrl.buf.page_shift -
968 MLX5_ADAPTER_PAGE_SHIFT);
969 MLX5_SET64(cqc, cqc, dbr_addr, cq->wq_ctrl.db.dma);
970
971 err = mlx5_core_create_cq(mdev, mcq, in, inlen);
972
973 kvfree(in);
974
975 if (err)
976 return err;
977
978 mlx5e_cq_arm(cq);
979
980 return 0;
981 }
982
983 static void mlx5e_disable_cq(struct mlx5e_cq *cq)
984 {
985 struct mlx5e_priv *priv = cq->priv;
986 struct mlx5_core_dev *mdev = priv->mdev;
987
988 mlx5_core_destroy_cq(mdev, &cq->mcq);
989 }
990
991 static int mlx5e_open_cq(struct mlx5e_channel *c,
992 struct mlx5e_cq_param *param,
993 struct mlx5e_cq *cq,
994 struct mlx5e_cq_moder moderation)
995 {
996 int err;
997 struct mlx5e_priv *priv = c->priv;
998 struct mlx5_core_dev *mdev = priv->mdev;
999
1000 err = mlx5e_create_cq(c, param, cq);
1001 if (err)
1002 return err;
1003
1004 err = mlx5e_enable_cq(cq, param);
1005 if (err)
1006 goto err_destroy_cq;
1007
1008 if (MLX5_CAP_GEN(mdev, cq_moderation))
1009 mlx5_core_modify_cq_moderation(mdev, &cq->mcq,
1010 moderation.usec,
1011 moderation.pkts);
1012 return 0;
1013
1014 err_destroy_cq:
1015 mlx5e_destroy_cq(cq);
1016
1017 return err;
1018 }
1019
1020 static void mlx5e_close_cq(struct mlx5e_cq *cq)
1021 {
1022 mlx5e_disable_cq(cq);
1023 mlx5e_destroy_cq(cq);
1024 }
1025
1026 static int mlx5e_get_cpu(struct mlx5e_priv *priv, int ix)
1027 {
1028 return cpumask_first(priv->mdev->priv.irq_info[ix].mask);
1029 }
1030
1031 static int mlx5e_open_tx_cqs(struct mlx5e_channel *c,
1032 struct mlx5e_channel_param *cparam)
1033 {
1034 struct mlx5e_priv *priv = c->priv;
1035 int err;
1036 int tc;
1037
1038 for (tc = 0; tc < c->num_tc; tc++) {
1039 err = mlx5e_open_cq(c, &cparam->tx_cq, &c->sq[tc].cq,
1040 priv->params.tx_cq_moderation);
1041 if (err)
1042 goto err_close_tx_cqs;
1043 }
1044
1045 return 0;
1046
1047 err_close_tx_cqs:
1048 for (tc--; tc >= 0; tc--)
1049 mlx5e_close_cq(&c->sq[tc].cq);
1050
1051 return err;
1052 }
1053
1054 static void mlx5e_close_tx_cqs(struct mlx5e_channel *c)
1055 {
1056 int tc;
1057
1058 for (tc = 0; tc < c->num_tc; tc++)
1059 mlx5e_close_cq(&c->sq[tc].cq);
1060 }
1061
1062 static int mlx5e_open_sqs(struct mlx5e_channel *c,
1063 struct mlx5e_channel_param *cparam)
1064 {
1065 int err;
1066 int tc;
1067
1068 for (tc = 0; tc < c->num_tc; tc++) {
1069 err = mlx5e_open_sq(c, tc, &cparam->sq, &c->sq[tc]);
1070 if (err)
1071 goto err_close_sqs;
1072 }
1073
1074 return 0;
1075
1076 err_close_sqs:
1077 for (tc--; tc >= 0; tc--)
1078 mlx5e_close_sq(&c->sq[tc]);
1079
1080 return err;
1081 }
1082
1083 static void mlx5e_close_sqs(struct mlx5e_channel *c)
1084 {
1085 int tc;
1086
1087 for (tc = 0; tc < c->num_tc; tc++)
1088 mlx5e_close_sq(&c->sq[tc]);
1089 }
1090
1091 static void mlx5e_build_channeltc_to_txq_map(struct mlx5e_priv *priv, int ix)
1092 {
1093 int i;
1094
1095 for (i = 0; i < priv->profile->max_tc; i++)
1096 priv->channeltc_to_txq_map[ix][i] =
1097 ix + i * priv->params.num_channels;
1098 }
1099
1100 static int mlx5e_set_sq_maxrate(struct net_device *dev,
1101 struct mlx5e_sq *sq, u32 rate)
1102 {
1103 struct mlx5e_priv *priv = netdev_priv(dev);
1104 struct mlx5_core_dev *mdev = priv->mdev;
1105 u16 rl_index = 0;
1106 int err;
1107
1108 if (rate == sq->rate_limit)
1109 /* nothing to do */
1110 return 0;
1111
1112 if (sq->rate_limit)
1113 /* remove current rl index to free space to next ones */
1114 mlx5_rl_remove_rate(mdev, sq->rate_limit);
1115
1116 sq->rate_limit = 0;
1117
1118 if (rate) {
1119 err = mlx5_rl_add_rate(mdev, rate, &rl_index);
1120 if (err) {
1121 netdev_err(dev, "Failed configuring rate %u: %d\n",
1122 rate, err);
1123 return err;
1124 }
1125 }
1126
1127 err = mlx5e_modify_sq(sq, MLX5_SQC_STATE_RDY,
1128 MLX5_SQC_STATE_RDY, true, rl_index);
1129 if (err) {
1130 netdev_err(dev, "Failed configuring rate %u: %d\n",
1131 rate, err);
1132 /* remove the rate from the table */
1133 if (rate)
1134 mlx5_rl_remove_rate(mdev, rate);
1135 return err;
1136 }
1137
1138 sq->rate_limit = rate;
1139 return 0;
1140 }
1141
1142 static int mlx5e_set_tx_maxrate(struct net_device *dev, int index, u32 rate)
1143 {
1144 struct mlx5e_priv *priv = netdev_priv(dev);
1145 struct mlx5_core_dev *mdev = priv->mdev;
1146 struct mlx5e_sq *sq = priv->txq_to_sq_map[index];
1147 int err = 0;
1148
1149 if (!mlx5_rl_is_supported(mdev)) {
1150 netdev_err(dev, "Rate limiting is not supported on this device\n");
1151 return -EINVAL;
1152 }
1153
1154 /* rate is given in Mb/sec, HW config is in Kb/sec */
1155 rate = rate << 10;
1156
1157 /* Check whether rate in valid range, 0 is always valid */
1158 if (rate && !mlx5_rl_is_in_range(mdev, rate)) {
1159 netdev_err(dev, "TX rate %u, is not in range\n", rate);
1160 return -ERANGE;
1161 }
1162
1163 mutex_lock(&priv->state_lock);
1164 if (test_bit(MLX5E_STATE_OPENED, &priv->state))
1165 err = mlx5e_set_sq_maxrate(dev, sq, rate);
1166 if (!err)
1167 priv->tx_rates[index] = rate;
1168 mutex_unlock(&priv->state_lock);
1169
1170 return err;
1171 }
1172
1173 static int mlx5e_open_channel(struct mlx5e_priv *priv, int ix,
1174 struct mlx5e_channel_param *cparam,
1175 struct mlx5e_channel **cp)
1176 {
1177 struct mlx5e_cq_moder icosq_cq_moder = {0, 0};
1178 struct net_device *netdev = priv->netdev;
1179 struct mlx5e_cq_moder rx_cq_profile;
1180 int cpu = mlx5e_get_cpu(priv, ix);
1181 struct mlx5e_channel *c;
1182 struct mlx5e_sq *sq;
1183 int err;
1184 int i;
1185
1186 c = kzalloc_node(sizeof(*c), GFP_KERNEL, cpu_to_node(cpu));
1187 if (!c)
1188 return -ENOMEM;
1189
1190 c->priv = priv;
1191 c->ix = ix;
1192 c->cpu = cpu;
1193 c->pdev = &priv->mdev->pdev->dev;
1194 c->netdev = priv->netdev;
1195 c->mkey_be = cpu_to_be32(priv->mdev->mlx5e_res.mkey.key);
1196 c->num_tc = priv->params.num_tc;
1197
1198 if (priv->params.rx_am_enabled)
1199 rx_cq_profile = mlx5e_am_get_def_profile(priv->params.rx_cq_period_mode);
1200 else
1201 rx_cq_profile = priv->params.rx_cq_moderation;
1202
1203 mlx5e_build_channeltc_to_txq_map(priv, ix);
1204
1205 netif_napi_add(netdev, &c->napi, mlx5e_napi_poll, 64);
1206
1207 err = mlx5e_open_cq(c, &cparam->icosq_cq, &c->icosq.cq, icosq_cq_moder);
1208 if (err)
1209 goto err_napi_del;
1210
1211 err = mlx5e_open_tx_cqs(c, cparam);
1212 if (err)
1213 goto err_close_icosq_cq;
1214
1215 err = mlx5e_open_cq(c, &cparam->rx_cq, &c->rq.cq,
1216 rx_cq_profile);
1217 if (err)
1218 goto err_close_tx_cqs;
1219
1220 napi_enable(&c->napi);
1221
1222 err = mlx5e_open_sq(c, 0, &cparam->icosq, &c->icosq);
1223 if (err)
1224 goto err_disable_napi;
1225
1226 err = mlx5e_open_sqs(c, cparam);
1227 if (err)
1228 goto err_close_icosq;
1229
1230 for (i = 0; i < priv->params.num_tc; i++) {
1231 u32 txq_ix = priv->channeltc_to_txq_map[ix][i];
1232
1233 if (priv->tx_rates[txq_ix]) {
1234 sq = priv->txq_to_sq_map[txq_ix];
1235 mlx5e_set_sq_maxrate(priv->netdev, sq,
1236 priv->tx_rates[txq_ix]);
1237 }
1238 }
1239
1240 err = mlx5e_open_rq(c, &cparam->rq, &c->rq);
1241 if (err)
1242 goto err_close_sqs;
1243
1244 netif_set_xps_queue(netdev, get_cpu_mask(c->cpu), ix);
1245 *cp = c;
1246
1247 return 0;
1248
1249 err_close_sqs:
1250 mlx5e_close_sqs(c);
1251
1252 err_close_icosq:
1253 mlx5e_close_sq(&c->icosq);
1254
1255 err_disable_napi:
1256 napi_disable(&c->napi);
1257 mlx5e_close_cq(&c->rq.cq);
1258
1259 err_close_tx_cqs:
1260 mlx5e_close_tx_cqs(c);
1261
1262 err_close_icosq_cq:
1263 mlx5e_close_cq(&c->icosq.cq);
1264
1265 err_napi_del:
1266 netif_napi_del(&c->napi);
1267 napi_hash_del(&c->napi);
1268 kfree(c);
1269
1270 return err;
1271 }
1272
1273 static void mlx5e_close_channel(struct mlx5e_channel *c)
1274 {
1275 mlx5e_close_rq(&c->rq);
1276 mlx5e_close_sqs(c);
1277 mlx5e_close_sq(&c->icosq);
1278 napi_disable(&c->napi);
1279 mlx5e_close_cq(&c->rq.cq);
1280 mlx5e_close_tx_cqs(c);
1281 mlx5e_close_cq(&c->icosq.cq);
1282 netif_napi_del(&c->napi);
1283
1284 napi_hash_del(&c->napi);
1285 synchronize_rcu();
1286
1287 kfree(c);
1288 }
1289
1290 static void mlx5e_build_rq_param(struct mlx5e_priv *priv,
1291 struct mlx5e_rq_param *param)
1292 {
1293 void *rqc = param->rqc;
1294 void *wq = MLX5_ADDR_OF(rqc, rqc, wq);
1295
1296 switch (priv->params.rq_wq_type) {
1297 case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ:
1298 MLX5_SET(wq, wq, log_wqe_num_of_strides,
1299 priv->params.mpwqe_log_num_strides - 9);
1300 MLX5_SET(wq, wq, log_wqe_stride_size,
1301 priv->params.mpwqe_log_stride_sz - 6);
1302 MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ);
1303 break;
1304 default: /* MLX5_WQ_TYPE_LINKED_LIST */
1305 MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_LINKED_LIST);
1306 }
1307
1308 MLX5_SET(wq, wq, end_padding_mode, MLX5_WQ_END_PAD_MODE_ALIGN);
1309 MLX5_SET(wq, wq, log_wq_stride, ilog2(sizeof(struct mlx5e_rx_wqe)));
1310 MLX5_SET(wq, wq, log_wq_sz, priv->params.log_rq_size);
1311 MLX5_SET(wq, wq, pd, priv->mdev->mlx5e_res.pdn);
1312 MLX5_SET(rqc, rqc, counter_set_id, priv->q_counter);
1313
1314 param->wq.buf_numa_node = dev_to_node(&priv->mdev->pdev->dev);
1315 param->wq.linear = 1;
1316
1317 param->am_enabled = priv->params.rx_am_enabled;
1318 }
1319
1320 static void mlx5e_build_drop_rq_param(struct mlx5e_rq_param *param)
1321 {
1322 void *rqc = param->rqc;
1323 void *wq = MLX5_ADDR_OF(rqc, rqc, wq);
1324
1325 MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_LINKED_LIST);
1326 MLX5_SET(wq, wq, log_wq_stride, ilog2(sizeof(struct mlx5e_rx_wqe)));
1327 }
1328
1329 static void mlx5e_build_sq_param_common(struct mlx5e_priv *priv,
1330 struct mlx5e_sq_param *param)
1331 {
1332 void *sqc = param->sqc;
1333 void *wq = MLX5_ADDR_OF(sqc, sqc, wq);
1334
1335 MLX5_SET(wq, wq, log_wq_stride, ilog2(MLX5_SEND_WQE_BB));
1336 MLX5_SET(wq, wq, pd, priv->mdev->mlx5e_res.pdn);
1337
1338 param->wq.buf_numa_node = dev_to_node(&priv->mdev->pdev->dev);
1339 }
1340
1341 static void mlx5e_build_sq_param(struct mlx5e_priv *priv,
1342 struct mlx5e_sq_param *param)
1343 {
1344 void *sqc = param->sqc;
1345 void *wq = MLX5_ADDR_OF(sqc, sqc, wq);
1346
1347 mlx5e_build_sq_param_common(priv, param);
1348 MLX5_SET(wq, wq, log_wq_sz, priv->params.log_sq_size);
1349
1350 param->max_inline = priv->params.tx_max_inline;
1351 param->min_inline_mode = priv->params.tx_min_inline_mode;
1352 }
1353
1354 static void mlx5e_build_common_cq_param(struct mlx5e_priv *priv,
1355 struct mlx5e_cq_param *param)
1356 {
1357 void *cqc = param->cqc;
1358
1359 MLX5_SET(cqc, cqc, uar_page, priv->mdev->mlx5e_res.cq_uar.index);
1360 }
1361
1362 static void mlx5e_build_rx_cq_param(struct mlx5e_priv *priv,
1363 struct mlx5e_cq_param *param)
1364 {
1365 void *cqc = param->cqc;
1366 u8 log_cq_size;
1367
1368 switch (priv->params.rq_wq_type) {
1369 case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ:
1370 log_cq_size = priv->params.log_rq_size +
1371 priv->params.mpwqe_log_num_strides;
1372 break;
1373 default: /* MLX5_WQ_TYPE_LINKED_LIST */
1374 log_cq_size = priv->params.log_rq_size;
1375 }
1376
1377 MLX5_SET(cqc, cqc, log_cq_size, log_cq_size);
1378 if (priv->params.rx_cqe_compress) {
1379 MLX5_SET(cqc, cqc, mini_cqe_res_format, MLX5_CQE_FORMAT_CSUM);
1380 MLX5_SET(cqc, cqc, cqe_comp_en, 1);
1381 }
1382
1383 mlx5e_build_common_cq_param(priv, param);
1384
1385 param->cq_period_mode = priv->params.rx_cq_period_mode;
1386 }
1387
1388 static void mlx5e_build_tx_cq_param(struct mlx5e_priv *priv,
1389 struct mlx5e_cq_param *param)
1390 {
1391 void *cqc = param->cqc;
1392
1393 MLX5_SET(cqc, cqc, log_cq_size, priv->params.log_sq_size);
1394
1395 mlx5e_build_common_cq_param(priv, param);
1396
1397 param->cq_period_mode = MLX5_CQ_PERIOD_MODE_START_FROM_EQE;
1398 }
1399
1400 static void mlx5e_build_ico_cq_param(struct mlx5e_priv *priv,
1401 struct mlx5e_cq_param *param,
1402 u8 log_wq_size)
1403 {
1404 void *cqc = param->cqc;
1405
1406 MLX5_SET(cqc, cqc, log_cq_size, log_wq_size);
1407
1408 mlx5e_build_common_cq_param(priv, param);
1409
1410 param->cq_period_mode = MLX5_CQ_PERIOD_MODE_START_FROM_EQE;
1411 }
1412
1413 static void mlx5e_build_icosq_param(struct mlx5e_priv *priv,
1414 struct mlx5e_sq_param *param,
1415 u8 log_wq_size)
1416 {
1417 void *sqc = param->sqc;
1418 void *wq = MLX5_ADDR_OF(sqc, sqc, wq);
1419
1420 mlx5e_build_sq_param_common(priv, param);
1421
1422 MLX5_SET(wq, wq, log_wq_sz, log_wq_size);
1423 MLX5_SET(sqc, sqc, reg_umr, MLX5_CAP_ETH(priv->mdev, reg_umr_sq));
1424
1425 param->icosq = true;
1426 }
1427
1428 static void mlx5e_build_channel_param(struct mlx5e_priv *priv, struct mlx5e_channel_param *cparam)
1429 {
1430 u8 icosq_log_wq_sz = MLX5E_PARAMS_MINIMUM_LOG_SQ_SIZE;
1431
1432 mlx5e_build_rq_param(priv, &cparam->rq);
1433 mlx5e_build_sq_param(priv, &cparam->sq);
1434 mlx5e_build_icosq_param(priv, &cparam->icosq, icosq_log_wq_sz);
1435 mlx5e_build_rx_cq_param(priv, &cparam->rx_cq);
1436 mlx5e_build_tx_cq_param(priv, &cparam->tx_cq);
1437 mlx5e_build_ico_cq_param(priv, &cparam->icosq_cq, icosq_log_wq_sz);
1438 }
1439
1440 static int mlx5e_open_channels(struct mlx5e_priv *priv)
1441 {
1442 struct mlx5e_channel_param *cparam;
1443 int nch = priv->params.num_channels;
1444 int err = -ENOMEM;
1445 int i;
1446 int j;
1447
1448 priv->channel = kcalloc(nch, sizeof(struct mlx5e_channel *),
1449 GFP_KERNEL);
1450
1451 priv->txq_to_sq_map = kcalloc(nch * priv->params.num_tc,
1452 sizeof(struct mlx5e_sq *), GFP_KERNEL);
1453
1454 cparam = kzalloc(sizeof(struct mlx5e_channel_param), GFP_KERNEL);
1455
1456 if (!priv->channel || !priv->txq_to_sq_map || !cparam)
1457 goto err_free_txq_to_sq_map;
1458
1459 mlx5e_build_channel_param(priv, cparam);
1460
1461 for (i = 0; i < nch; i++) {
1462 err = mlx5e_open_channel(priv, i, cparam, &priv->channel[i]);
1463 if (err)
1464 goto err_close_channels;
1465 }
1466
1467 for (j = 0; j < nch; j++) {
1468 err = mlx5e_wait_for_min_rx_wqes(&priv->channel[j]->rq);
1469 if (err)
1470 goto err_close_channels;
1471 }
1472
1473 /* FIXME: This is a W/A for tx timeout watch dog false alarm when
1474 * polling for inactive tx queues.
1475 */
1476 netif_tx_start_all_queues(priv->netdev);
1477
1478 kfree(cparam);
1479 return 0;
1480
1481 err_close_channels:
1482 for (i--; i >= 0; i--)
1483 mlx5e_close_channel(priv->channel[i]);
1484
1485 err_free_txq_to_sq_map:
1486 kfree(priv->txq_to_sq_map);
1487 kfree(priv->channel);
1488 kfree(cparam);
1489
1490 return err;
1491 }
1492
1493 static void mlx5e_close_channels(struct mlx5e_priv *priv)
1494 {
1495 int i;
1496
1497 /* FIXME: This is a W/A only for tx timeout watch dog false alarm when
1498 * polling for inactive tx queues.
1499 */
1500 netif_tx_stop_all_queues(priv->netdev);
1501 netif_tx_disable(priv->netdev);
1502
1503 for (i = 0; i < priv->params.num_channels; i++)
1504 mlx5e_close_channel(priv->channel[i]);
1505
1506 kfree(priv->txq_to_sq_map);
1507 kfree(priv->channel);
1508 }
1509
1510 static int mlx5e_rx_hash_fn(int hfunc)
1511 {
1512 return (hfunc == ETH_RSS_HASH_TOP) ?
1513 MLX5_RX_HASH_FN_TOEPLITZ :
1514 MLX5_RX_HASH_FN_INVERTED_XOR8;
1515 }
1516
1517 static int mlx5e_bits_invert(unsigned long a, int size)
1518 {
1519 int inv = 0;
1520 int i;
1521
1522 for (i = 0; i < size; i++)
1523 inv |= (test_bit(size - i - 1, &a) ? 1 : 0) << i;
1524
1525 return inv;
1526 }
1527
1528 static void mlx5e_fill_indir_rqt_rqns(struct mlx5e_priv *priv, void *rqtc)
1529 {
1530 int i;
1531
1532 for (i = 0; i < MLX5E_INDIR_RQT_SIZE; i++) {
1533 int ix = i;
1534 u32 rqn;
1535
1536 if (priv->params.rss_hfunc == ETH_RSS_HASH_XOR)
1537 ix = mlx5e_bits_invert(i, MLX5E_LOG_INDIR_RQT_SIZE);
1538
1539 ix = priv->params.indirection_rqt[ix];
1540 rqn = test_bit(MLX5E_STATE_OPENED, &priv->state) ?
1541 priv->channel[ix]->rq.rqn :
1542 priv->drop_rq.rqn;
1543 MLX5_SET(rqtc, rqtc, rq_num[i], rqn);
1544 }
1545 }
1546
1547 static void mlx5e_fill_direct_rqt_rqn(struct mlx5e_priv *priv, void *rqtc,
1548 int ix)
1549 {
1550 u32 rqn = test_bit(MLX5E_STATE_OPENED, &priv->state) ?
1551 priv->channel[ix]->rq.rqn :
1552 priv->drop_rq.rqn;
1553
1554 MLX5_SET(rqtc, rqtc, rq_num[0], rqn);
1555 }
1556
1557 static int mlx5e_create_rqt(struct mlx5e_priv *priv, int sz,
1558 int ix, struct mlx5e_rqt *rqt)
1559 {
1560 struct mlx5_core_dev *mdev = priv->mdev;
1561 void *rqtc;
1562 int inlen;
1563 int err;
1564 u32 *in;
1565
1566 inlen = MLX5_ST_SZ_BYTES(create_rqt_in) + sizeof(u32) * sz;
1567 in = mlx5_vzalloc(inlen);
1568 if (!in)
1569 return -ENOMEM;
1570
1571 rqtc = MLX5_ADDR_OF(create_rqt_in, in, rqt_context);
1572
1573 MLX5_SET(rqtc, rqtc, rqt_actual_size, sz);
1574 MLX5_SET(rqtc, rqtc, rqt_max_size, sz);
1575
1576 if (sz > 1) /* RSS */
1577 mlx5e_fill_indir_rqt_rqns(priv, rqtc);
1578 else
1579 mlx5e_fill_direct_rqt_rqn(priv, rqtc, ix);
1580
1581 err = mlx5_core_create_rqt(mdev, in, inlen, &rqt->rqtn);
1582 if (!err)
1583 rqt->enabled = true;
1584
1585 kvfree(in);
1586 return err;
1587 }
1588
1589 void mlx5e_destroy_rqt(struct mlx5e_priv *priv, struct mlx5e_rqt *rqt)
1590 {
1591 rqt->enabled = false;
1592 mlx5_core_destroy_rqt(priv->mdev, rqt->rqtn);
1593 }
1594
1595 static int mlx5e_create_indirect_rqts(struct mlx5e_priv *priv)
1596 {
1597 struct mlx5e_rqt *rqt = &priv->indir_rqt;
1598
1599 return mlx5e_create_rqt(priv, MLX5E_INDIR_RQT_SIZE, 0, rqt);
1600 }
1601
1602 int mlx5e_create_direct_rqts(struct mlx5e_priv *priv)
1603 {
1604 struct mlx5e_rqt *rqt;
1605 int err;
1606 int ix;
1607
1608 for (ix = 0; ix < priv->profile->max_nch(priv->mdev); ix++) {
1609 rqt = &priv->direct_tir[ix].rqt;
1610 err = mlx5e_create_rqt(priv, 1 /*size */, ix, rqt);
1611 if (err)
1612 goto err_destroy_rqts;
1613 }
1614
1615 return 0;
1616
1617 err_destroy_rqts:
1618 for (ix--; ix >= 0; ix--)
1619 mlx5e_destroy_rqt(priv, &priv->direct_tir[ix].rqt);
1620
1621 return err;
1622 }
1623
1624 int mlx5e_redirect_rqt(struct mlx5e_priv *priv, u32 rqtn, int sz, int ix)
1625 {
1626 struct mlx5_core_dev *mdev = priv->mdev;
1627 void *rqtc;
1628 int inlen;
1629 u32 *in;
1630 int err;
1631
1632 inlen = MLX5_ST_SZ_BYTES(modify_rqt_in) + sizeof(u32) * sz;
1633 in = mlx5_vzalloc(inlen);
1634 if (!in)
1635 return -ENOMEM;
1636
1637 rqtc = MLX5_ADDR_OF(modify_rqt_in, in, ctx);
1638
1639 MLX5_SET(rqtc, rqtc, rqt_actual_size, sz);
1640 if (sz > 1) /* RSS */
1641 mlx5e_fill_indir_rqt_rqns(priv, rqtc);
1642 else
1643 mlx5e_fill_direct_rqt_rqn(priv, rqtc, ix);
1644
1645 MLX5_SET(modify_rqt_in, in, bitmask.rqn_list, 1);
1646
1647 err = mlx5_core_modify_rqt(mdev, rqtn, in, inlen);
1648
1649 kvfree(in);
1650
1651 return err;
1652 }
1653
1654 static void mlx5e_redirect_rqts(struct mlx5e_priv *priv)
1655 {
1656 u32 rqtn;
1657 int ix;
1658
1659 if (priv->indir_rqt.enabled) {
1660 rqtn = priv->indir_rqt.rqtn;
1661 mlx5e_redirect_rqt(priv, rqtn, MLX5E_INDIR_RQT_SIZE, 0);
1662 }
1663
1664 for (ix = 0; ix < priv->params.num_channels; ix++) {
1665 if (!priv->direct_tir[ix].rqt.enabled)
1666 continue;
1667 rqtn = priv->direct_tir[ix].rqt.rqtn;
1668 mlx5e_redirect_rqt(priv, rqtn, 1, ix);
1669 }
1670 }
1671
1672 static void mlx5e_build_tir_ctx_lro(void *tirc, struct mlx5e_priv *priv)
1673 {
1674 if (!priv->params.lro_en)
1675 return;
1676
1677 #define ROUGH_MAX_L2_L3_HDR_SZ 256
1678
1679 MLX5_SET(tirc, tirc, lro_enable_mask,
1680 MLX5_TIRC_LRO_ENABLE_MASK_IPV4_LRO |
1681 MLX5_TIRC_LRO_ENABLE_MASK_IPV6_LRO);
1682 MLX5_SET(tirc, tirc, lro_max_ip_payload_size,
1683 (priv->params.lro_wqe_sz -
1684 ROUGH_MAX_L2_L3_HDR_SZ) >> 8);
1685 MLX5_SET(tirc, tirc, lro_timeout_period_usecs,
1686 MLX5_CAP_ETH(priv->mdev,
1687 lro_timer_supported_periods[2]));
1688 }
1689
1690 void mlx5e_build_tir_ctx_hash(void *tirc, struct mlx5e_priv *priv)
1691 {
1692 MLX5_SET(tirc, tirc, rx_hash_fn,
1693 mlx5e_rx_hash_fn(priv->params.rss_hfunc));
1694 if (priv->params.rss_hfunc == ETH_RSS_HASH_TOP) {
1695 void *rss_key = MLX5_ADDR_OF(tirc, tirc,
1696 rx_hash_toeplitz_key);
1697 size_t len = MLX5_FLD_SZ_BYTES(tirc,
1698 rx_hash_toeplitz_key);
1699
1700 MLX5_SET(tirc, tirc, rx_hash_symmetric, 1);
1701 memcpy(rss_key, priv->params.toeplitz_hash_key, len);
1702 }
1703 }
1704
1705 static int mlx5e_modify_tirs_lro(struct mlx5e_priv *priv)
1706 {
1707 struct mlx5_core_dev *mdev = priv->mdev;
1708
1709 void *in;
1710 void *tirc;
1711 int inlen;
1712 int err;
1713 int tt;
1714 int ix;
1715
1716 inlen = MLX5_ST_SZ_BYTES(modify_tir_in);
1717 in = mlx5_vzalloc(inlen);
1718 if (!in)
1719 return -ENOMEM;
1720
1721 MLX5_SET(modify_tir_in, in, bitmask.lro, 1);
1722 tirc = MLX5_ADDR_OF(modify_tir_in, in, ctx);
1723
1724 mlx5e_build_tir_ctx_lro(tirc, priv);
1725
1726 for (tt = 0; tt < MLX5E_NUM_INDIR_TIRS; tt++) {
1727 err = mlx5_core_modify_tir(mdev, priv->indir_tir[tt].tirn, in,
1728 inlen);
1729 if (err)
1730 goto free_in;
1731 }
1732
1733 for (ix = 0; ix < priv->profile->max_nch(priv->mdev); ix++) {
1734 err = mlx5_core_modify_tir(mdev, priv->direct_tir[ix].tirn,
1735 in, inlen);
1736 if (err)
1737 goto free_in;
1738 }
1739
1740 free_in:
1741 kvfree(in);
1742
1743 return err;
1744 }
1745
1746 static int mlx5e_set_mtu(struct mlx5e_priv *priv, u16 mtu)
1747 {
1748 struct mlx5_core_dev *mdev = priv->mdev;
1749 u16 hw_mtu = MLX5E_SW2HW_MTU(mtu);
1750 int err;
1751
1752 err = mlx5_set_port_mtu(mdev, hw_mtu, 1);
1753 if (err)
1754 return err;
1755
1756 /* Update vport context MTU */
1757 mlx5_modify_nic_vport_mtu(mdev, hw_mtu);
1758 return 0;
1759 }
1760
1761 static void mlx5e_query_mtu(struct mlx5e_priv *priv, u16 *mtu)
1762 {
1763 struct mlx5_core_dev *mdev = priv->mdev;
1764 u16 hw_mtu = 0;
1765 int err;
1766
1767 err = mlx5_query_nic_vport_mtu(mdev, &hw_mtu);
1768 if (err || !hw_mtu) /* fallback to port oper mtu */
1769 mlx5_query_port_oper_mtu(mdev, &hw_mtu, 1);
1770
1771 *mtu = MLX5E_HW2SW_MTU(hw_mtu);
1772 }
1773
1774 static int mlx5e_set_dev_port_mtu(struct net_device *netdev)
1775 {
1776 struct mlx5e_priv *priv = netdev_priv(netdev);
1777 u16 mtu;
1778 int err;
1779
1780 err = mlx5e_set_mtu(priv, netdev->mtu);
1781 if (err)
1782 return err;
1783
1784 mlx5e_query_mtu(priv, &mtu);
1785 if (mtu != netdev->mtu)
1786 netdev_warn(netdev, "%s: VPort MTU %d is different than netdev mtu %d\n",
1787 __func__, mtu, netdev->mtu);
1788
1789 netdev->mtu = mtu;
1790 return 0;
1791 }
1792
1793 static void mlx5e_netdev_set_tcs(struct net_device *netdev)
1794 {
1795 struct mlx5e_priv *priv = netdev_priv(netdev);
1796 int nch = priv->params.num_channels;
1797 int ntc = priv->params.num_tc;
1798 int tc;
1799
1800 netdev_reset_tc(netdev);
1801
1802 if (ntc == 1)
1803 return;
1804
1805 netdev_set_num_tc(netdev, ntc);
1806
1807 /* Map netdev TCs to offset 0
1808 * We have our own UP to TXQ mapping for QoS
1809 */
1810 for (tc = 0; tc < ntc; tc++)
1811 netdev_set_tc_queue(netdev, tc, nch, 0);
1812 }
1813
1814 int mlx5e_open_locked(struct net_device *netdev)
1815 {
1816 struct mlx5e_priv *priv = netdev_priv(netdev);
1817 struct mlx5_core_dev *mdev = priv->mdev;
1818 int num_txqs;
1819 int err;
1820
1821 set_bit(MLX5E_STATE_OPENED, &priv->state);
1822
1823 mlx5e_netdev_set_tcs(netdev);
1824
1825 num_txqs = priv->params.num_channels * priv->params.num_tc;
1826 netif_set_real_num_tx_queues(netdev, num_txqs);
1827 netif_set_real_num_rx_queues(netdev, priv->params.num_channels);
1828
1829 err = mlx5e_set_dev_port_mtu(netdev);
1830 if (err)
1831 goto err_clear_state_opened_flag;
1832
1833 err = mlx5e_open_channels(priv);
1834 if (err) {
1835 netdev_err(netdev, "%s: mlx5e_open_channels failed, %d\n",
1836 __func__, err);
1837 goto err_clear_state_opened_flag;
1838 }
1839
1840 err = mlx5e_refresh_tirs_self_loopback_enable(priv->mdev);
1841 if (err) {
1842 netdev_err(netdev, "%s: mlx5e_refresh_tirs_self_loopback_enable failed, %d\n",
1843 __func__, err);
1844 goto err_close_channels;
1845 }
1846
1847 mlx5e_redirect_rqts(priv);
1848 mlx5e_update_carrier(priv);
1849 mlx5e_timestamp_init(priv);
1850 #ifdef CONFIG_RFS_ACCEL
1851 priv->netdev->rx_cpu_rmap = priv->mdev->rmap;
1852 #endif
1853 if (priv->profile->update_stats)
1854 queue_delayed_work(priv->wq, &priv->update_stats_work, 0);
1855
1856 if (MLX5_CAP_GEN(mdev, vport_group_manager)) {
1857 err = mlx5e_add_sqs_fwd_rules(priv);
1858 if (err)
1859 goto err_close_channels;
1860 }
1861 return 0;
1862
1863 err_close_channels:
1864 mlx5e_close_channels(priv);
1865 err_clear_state_opened_flag:
1866 clear_bit(MLX5E_STATE_OPENED, &priv->state);
1867 return err;
1868 }
1869
1870 int mlx5e_open(struct net_device *netdev)
1871 {
1872 struct mlx5e_priv *priv = netdev_priv(netdev);
1873 int err;
1874
1875 mutex_lock(&priv->state_lock);
1876 err = mlx5e_open_locked(netdev);
1877 mutex_unlock(&priv->state_lock);
1878
1879 return err;
1880 }
1881
1882 int mlx5e_close_locked(struct net_device *netdev)
1883 {
1884 struct mlx5e_priv *priv = netdev_priv(netdev);
1885 struct mlx5_core_dev *mdev = priv->mdev;
1886
1887 /* May already be CLOSED in case a previous configuration operation
1888 * (e.g RX/TX queue size change) that involves close&open failed.
1889 */
1890 if (!test_bit(MLX5E_STATE_OPENED, &priv->state))
1891 return 0;
1892
1893 clear_bit(MLX5E_STATE_OPENED, &priv->state);
1894
1895 if (MLX5_CAP_GEN(mdev, vport_group_manager))
1896 mlx5e_remove_sqs_fwd_rules(priv);
1897
1898 mlx5e_timestamp_cleanup(priv);
1899 netif_carrier_off(priv->netdev);
1900 mlx5e_redirect_rqts(priv);
1901 mlx5e_close_channels(priv);
1902
1903 return 0;
1904 }
1905
1906 int mlx5e_close(struct net_device *netdev)
1907 {
1908 struct mlx5e_priv *priv = netdev_priv(netdev);
1909 int err;
1910
1911 mutex_lock(&priv->state_lock);
1912 err = mlx5e_close_locked(netdev);
1913 mutex_unlock(&priv->state_lock);
1914
1915 return err;
1916 }
1917
1918 static int mlx5e_create_drop_rq(struct mlx5e_priv *priv,
1919 struct mlx5e_rq *rq,
1920 struct mlx5e_rq_param *param)
1921 {
1922 struct mlx5_core_dev *mdev = priv->mdev;
1923 void *rqc = param->rqc;
1924 void *rqc_wq = MLX5_ADDR_OF(rqc, rqc, wq);
1925 int err;
1926
1927 param->wq.db_numa_node = param->wq.buf_numa_node;
1928
1929 err = mlx5_wq_ll_create(mdev, &param->wq, rqc_wq, &rq->wq,
1930 &rq->wq_ctrl);
1931 if (err)
1932 return err;
1933
1934 rq->priv = priv;
1935
1936 return 0;
1937 }
1938
1939 static int mlx5e_create_drop_cq(struct mlx5e_priv *priv,
1940 struct mlx5e_cq *cq,
1941 struct mlx5e_cq_param *param)
1942 {
1943 struct mlx5_core_dev *mdev = priv->mdev;
1944 struct mlx5_core_cq *mcq = &cq->mcq;
1945 int eqn_not_used;
1946 unsigned int irqn;
1947 int err;
1948
1949 err = mlx5_cqwq_create(mdev, &param->wq, param->cqc, &cq->wq,
1950 &cq->wq_ctrl);
1951 if (err)
1952 return err;
1953
1954 mlx5_vector2eqn(mdev, param->eq_ix, &eqn_not_used, &irqn);
1955
1956 mcq->cqe_sz = 64;
1957 mcq->set_ci_db = cq->wq_ctrl.db.db;
1958 mcq->arm_db = cq->wq_ctrl.db.db + 1;
1959 *mcq->set_ci_db = 0;
1960 *mcq->arm_db = 0;
1961 mcq->vector = param->eq_ix;
1962 mcq->comp = mlx5e_completion_event;
1963 mcq->event = mlx5e_cq_error_event;
1964 mcq->irqn = irqn;
1965 mcq->uar = &mdev->mlx5e_res.cq_uar;
1966
1967 cq->priv = priv;
1968
1969 return 0;
1970 }
1971
1972 static int mlx5e_open_drop_rq(struct mlx5e_priv *priv)
1973 {
1974 struct mlx5e_cq_param cq_param;
1975 struct mlx5e_rq_param rq_param;
1976 struct mlx5e_rq *rq = &priv->drop_rq;
1977 struct mlx5e_cq *cq = &priv->drop_rq.cq;
1978 int err;
1979
1980 memset(&cq_param, 0, sizeof(cq_param));
1981 memset(&rq_param, 0, sizeof(rq_param));
1982 mlx5e_build_drop_rq_param(&rq_param);
1983
1984 err = mlx5e_create_drop_cq(priv, cq, &cq_param);
1985 if (err)
1986 return err;
1987
1988 err = mlx5e_enable_cq(cq, &cq_param);
1989 if (err)
1990 goto err_destroy_cq;
1991
1992 err = mlx5e_create_drop_rq(priv, rq, &rq_param);
1993 if (err)
1994 goto err_disable_cq;
1995
1996 err = mlx5e_enable_rq(rq, &rq_param);
1997 if (err)
1998 goto err_destroy_rq;
1999
2000 return 0;
2001
2002 err_destroy_rq:
2003 mlx5e_destroy_rq(&priv->drop_rq);
2004
2005 err_disable_cq:
2006 mlx5e_disable_cq(&priv->drop_rq.cq);
2007
2008 err_destroy_cq:
2009 mlx5e_destroy_cq(&priv->drop_rq.cq);
2010
2011 return err;
2012 }
2013
2014 static void mlx5e_close_drop_rq(struct mlx5e_priv *priv)
2015 {
2016 mlx5e_disable_rq(&priv->drop_rq);
2017 mlx5e_destroy_rq(&priv->drop_rq);
2018 mlx5e_disable_cq(&priv->drop_rq.cq);
2019 mlx5e_destroy_cq(&priv->drop_rq.cq);
2020 }
2021
2022 static int mlx5e_create_tis(struct mlx5e_priv *priv, int tc)
2023 {
2024 struct mlx5_core_dev *mdev = priv->mdev;
2025 u32 in[MLX5_ST_SZ_DW(create_tis_in)];
2026 void *tisc = MLX5_ADDR_OF(create_tis_in, in, ctx);
2027
2028 memset(in, 0, sizeof(in));
2029
2030 MLX5_SET(tisc, tisc, prio, tc << 1);
2031 MLX5_SET(tisc, tisc, transport_domain, mdev->mlx5e_res.td.tdn);
2032
2033 return mlx5_core_create_tis(mdev, in, sizeof(in), &priv->tisn[tc]);
2034 }
2035
2036 static void mlx5e_destroy_tis(struct mlx5e_priv *priv, int tc)
2037 {
2038 mlx5_core_destroy_tis(priv->mdev, priv->tisn[tc]);
2039 }
2040
2041 int mlx5e_create_tises(struct mlx5e_priv *priv)
2042 {
2043 int err;
2044 int tc;
2045
2046 for (tc = 0; tc < priv->profile->max_tc; tc++) {
2047 err = mlx5e_create_tis(priv, tc);
2048 if (err)
2049 goto err_close_tises;
2050 }
2051
2052 return 0;
2053
2054 err_close_tises:
2055 for (tc--; tc >= 0; tc--)
2056 mlx5e_destroy_tis(priv, tc);
2057
2058 return err;
2059 }
2060
2061 void mlx5e_cleanup_nic_tx(struct mlx5e_priv *priv)
2062 {
2063 int tc;
2064
2065 for (tc = 0; tc < priv->profile->max_tc; tc++)
2066 mlx5e_destroy_tis(priv, tc);
2067 }
2068
2069 static void mlx5e_build_indir_tir_ctx(struct mlx5e_priv *priv, u32 *tirc,
2070 enum mlx5e_traffic_types tt)
2071 {
2072 void *hfso = MLX5_ADDR_OF(tirc, tirc, rx_hash_field_selector_outer);
2073
2074 MLX5_SET(tirc, tirc, transport_domain, priv->mdev->mlx5e_res.td.tdn);
2075
2076 #define MLX5_HASH_IP (MLX5_HASH_FIELD_SEL_SRC_IP |\
2077 MLX5_HASH_FIELD_SEL_DST_IP)
2078
2079 #define MLX5_HASH_IP_L4PORTS (MLX5_HASH_FIELD_SEL_SRC_IP |\
2080 MLX5_HASH_FIELD_SEL_DST_IP |\
2081 MLX5_HASH_FIELD_SEL_L4_SPORT |\
2082 MLX5_HASH_FIELD_SEL_L4_DPORT)
2083
2084 #define MLX5_HASH_IP_IPSEC_SPI (MLX5_HASH_FIELD_SEL_SRC_IP |\
2085 MLX5_HASH_FIELD_SEL_DST_IP |\
2086 MLX5_HASH_FIELD_SEL_IPSEC_SPI)
2087
2088 mlx5e_build_tir_ctx_lro(tirc, priv);
2089
2090 MLX5_SET(tirc, tirc, disp_type, MLX5_TIRC_DISP_TYPE_INDIRECT);
2091 MLX5_SET(tirc, tirc, indirect_table, priv->indir_rqt.rqtn);
2092 mlx5e_build_tir_ctx_hash(tirc, priv);
2093
2094 switch (tt) {
2095 case MLX5E_TT_IPV4_TCP:
2096 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
2097 MLX5_L3_PROT_TYPE_IPV4);
2098 MLX5_SET(rx_hash_field_select, hfso, l4_prot_type,
2099 MLX5_L4_PROT_TYPE_TCP);
2100 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
2101 MLX5_HASH_IP_L4PORTS);
2102 break;
2103
2104 case MLX5E_TT_IPV6_TCP:
2105 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
2106 MLX5_L3_PROT_TYPE_IPV6);
2107 MLX5_SET(rx_hash_field_select, hfso, l4_prot_type,
2108 MLX5_L4_PROT_TYPE_TCP);
2109 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
2110 MLX5_HASH_IP_L4PORTS);
2111 break;
2112
2113 case MLX5E_TT_IPV4_UDP:
2114 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
2115 MLX5_L3_PROT_TYPE_IPV4);
2116 MLX5_SET(rx_hash_field_select, hfso, l4_prot_type,
2117 MLX5_L4_PROT_TYPE_UDP);
2118 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
2119 MLX5_HASH_IP_L4PORTS);
2120 break;
2121
2122 case MLX5E_TT_IPV6_UDP:
2123 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
2124 MLX5_L3_PROT_TYPE_IPV6);
2125 MLX5_SET(rx_hash_field_select, hfso, l4_prot_type,
2126 MLX5_L4_PROT_TYPE_UDP);
2127 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
2128 MLX5_HASH_IP_L4PORTS);
2129 break;
2130
2131 case MLX5E_TT_IPV4_IPSEC_AH:
2132 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
2133 MLX5_L3_PROT_TYPE_IPV4);
2134 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
2135 MLX5_HASH_IP_IPSEC_SPI);
2136 break;
2137
2138 case MLX5E_TT_IPV6_IPSEC_AH:
2139 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
2140 MLX5_L3_PROT_TYPE_IPV6);
2141 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
2142 MLX5_HASH_IP_IPSEC_SPI);
2143 break;
2144
2145 case MLX5E_TT_IPV4_IPSEC_ESP:
2146 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
2147 MLX5_L3_PROT_TYPE_IPV4);
2148 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
2149 MLX5_HASH_IP_IPSEC_SPI);
2150 break;
2151
2152 case MLX5E_TT_IPV6_IPSEC_ESP:
2153 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
2154 MLX5_L3_PROT_TYPE_IPV6);
2155 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
2156 MLX5_HASH_IP_IPSEC_SPI);
2157 break;
2158
2159 case MLX5E_TT_IPV4:
2160 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
2161 MLX5_L3_PROT_TYPE_IPV4);
2162 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
2163 MLX5_HASH_IP);
2164 break;
2165
2166 case MLX5E_TT_IPV6:
2167 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
2168 MLX5_L3_PROT_TYPE_IPV6);
2169 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
2170 MLX5_HASH_IP);
2171 break;
2172 default:
2173 WARN_ONCE(true,
2174 "mlx5e_build_indir_tir_ctx: bad traffic type!\n");
2175 }
2176 }
2177
2178 static void mlx5e_build_direct_tir_ctx(struct mlx5e_priv *priv, u32 *tirc,
2179 u32 rqtn)
2180 {
2181 MLX5_SET(tirc, tirc, transport_domain, priv->mdev->mlx5e_res.td.tdn);
2182
2183 mlx5e_build_tir_ctx_lro(tirc, priv);
2184
2185 MLX5_SET(tirc, tirc, disp_type, MLX5_TIRC_DISP_TYPE_INDIRECT);
2186 MLX5_SET(tirc, tirc, indirect_table, rqtn);
2187 MLX5_SET(tirc, tirc, rx_hash_fn, MLX5_RX_HASH_FN_INVERTED_XOR8);
2188 }
2189
2190 static int mlx5e_create_indirect_tirs(struct mlx5e_priv *priv)
2191 {
2192 struct mlx5e_tir *tir;
2193 void *tirc;
2194 int inlen;
2195 int err;
2196 u32 *in;
2197 int tt;
2198
2199 inlen = MLX5_ST_SZ_BYTES(create_tir_in);
2200 in = mlx5_vzalloc(inlen);
2201 if (!in)
2202 return -ENOMEM;
2203
2204 for (tt = 0; tt < MLX5E_NUM_INDIR_TIRS; tt++) {
2205 memset(in, 0, inlen);
2206 tir = &priv->indir_tir[tt];
2207 tirc = MLX5_ADDR_OF(create_tir_in, in, ctx);
2208 mlx5e_build_indir_tir_ctx(priv, tirc, tt);
2209 err = mlx5e_create_tir(priv->mdev, tir, in, inlen);
2210 if (err)
2211 goto err_destroy_tirs;
2212 }
2213
2214 kvfree(in);
2215
2216 return 0;
2217
2218 err_destroy_tirs:
2219 for (tt--; tt >= 0; tt--)
2220 mlx5e_destroy_tir(priv->mdev, &priv->indir_tir[tt]);
2221
2222 kvfree(in);
2223
2224 return err;
2225 }
2226
2227 int mlx5e_create_direct_tirs(struct mlx5e_priv *priv)
2228 {
2229 int nch = priv->profile->max_nch(priv->mdev);
2230 struct mlx5e_tir *tir;
2231 void *tirc;
2232 int inlen;
2233 int err;
2234 u32 *in;
2235 int ix;
2236
2237 inlen = MLX5_ST_SZ_BYTES(create_tir_in);
2238 in = mlx5_vzalloc(inlen);
2239 if (!in)
2240 return -ENOMEM;
2241
2242 for (ix = 0; ix < nch; ix++) {
2243 memset(in, 0, inlen);
2244 tir = &priv->direct_tir[ix];
2245 tirc = MLX5_ADDR_OF(create_tir_in, in, ctx);
2246 mlx5e_build_direct_tir_ctx(priv, tirc,
2247 priv->direct_tir[ix].rqt.rqtn);
2248 err = mlx5e_create_tir(priv->mdev, tir, in, inlen);
2249 if (err)
2250 goto err_destroy_ch_tirs;
2251 }
2252
2253 kvfree(in);
2254
2255 return 0;
2256
2257 err_destroy_ch_tirs:
2258 for (ix--; ix >= 0; ix--)
2259 mlx5e_destroy_tir(priv->mdev, &priv->direct_tir[ix]);
2260
2261 kvfree(in);
2262
2263 return err;
2264 }
2265
2266 static void mlx5e_destroy_indirect_tirs(struct mlx5e_priv *priv)
2267 {
2268 int i;
2269
2270 for (i = 0; i < MLX5E_NUM_INDIR_TIRS; i++)
2271 mlx5e_destroy_tir(priv->mdev, &priv->indir_tir[i]);
2272 }
2273
2274 void mlx5e_destroy_direct_tirs(struct mlx5e_priv *priv)
2275 {
2276 int nch = priv->profile->max_nch(priv->mdev);
2277 int i;
2278
2279 for (i = 0; i < nch; i++)
2280 mlx5e_destroy_tir(priv->mdev, &priv->direct_tir[i]);
2281 }
2282
2283 int mlx5e_modify_rqs_vsd(struct mlx5e_priv *priv, bool vsd)
2284 {
2285 int err = 0;
2286 int i;
2287
2288 if (!test_bit(MLX5E_STATE_OPENED, &priv->state))
2289 return 0;
2290
2291 for (i = 0; i < priv->params.num_channels; i++) {
2292 err = mlx5e_modify_rq_vsd(&priv->channel[i]->rq, vsd);
2293 if (err)
2294 return err;
2295 }
2296
2297 return 0;
2298 }
2299
2300 static int mlx5e_setup_tc(struct net_device *netdev, u8 tc)
2301 {
2302 struct mlx5e_priv *priv = netdev_priv(netdev);
2303 bool was_opened;
2304 int err = 0;
2305
2306 if (tc && tc != MLX5E_MAX_NUM_TC)
2307 return -EINVAL;
2308
2309 mutex_lock(&priv->state_lock);
2310
2311 was_opened = test_bit(MLX5E_STATE_OPENED, &priv->state);
2312 if (was_opened)
2313 mlx5e_close_locked(priv->netdev);
2314
2315 priv->params.num_tc = tc ? tc : 1;
2316
2317 if (was_opened)
2318 err = mlx5e_open_locked(priv->netdev);
2319
2320 mutex_unlock(&priv->state_lock);
2321
2322 return err;
2323 }
2324
2325 static int mlx5e_ndo_setup_tc(struct net_device *dev, u32 handle,
2326 __be16 proto, struct tc_to_netdev *tc)
2327 {
2328 struct mlx5e_priv *priv = netdev_priv(dev);
2329
2330 if (TC_H_MAJ(handle) != TC_H_MAJ(TC_H_INGRESS))
2331 goto mqprio;
2332
2333 switch (tc->type) {
2334 case TC_SETUP_CLSFLOWER:
2335 switch (tc->cls_flower->command) {
2336 case TC_CLSFLOWER_REPLACE:
2337 return mlx5e_configure_flower(priv, proto, tc->cls_flower);
2338 case TC_CLSFLOWER_DESTROY:
2339 return mlx5e_delete_flower(priv, tc->cls_flower);
2340 case TC_CLSFLOWER_STATS:
2341 return mlx5e_stats_flower(priv, tc->cls_flower);
2342 }
2343 default:
2344 return -EOPNOTSUPP;
2345 }
2346
2347 mqprio:
2348 if (tc->type != TC_SETUP_MQPRIO)
2349 return -EINVAL;
2350
2351 return mlx5e_setup_tc(dev, tc->tc);
2352 }
2353
2354 struct rtnl_link_stats64 *
2355 mlx5e_get_stats(struct net_device *dev, struct rtnl_link_stats64 *stats)
2356 {
2357 struct mlx5e_priv *priv = netdev_priv(dev);
2358 struct mlx5e_sw_stats *sstats = &priv->stats.sw;
2359 struct mlx5e_vport_stats *vstats = &priv->stats.vport;
2360 struct mlx5e_pport_stats *pstats = &priv->stats.pport;
2361
2362 stats->rx_packets = sstats->rx_packets;
2363 stats->rx_bytes = sstats->rx_bytes;
2364 stats->tx_packets = sstats->tx_packets;
2365 stats->tx_bytes = sstats->tx_bytes;
2366
2367 stats->rx_dropped = priv->stats.qcnt.rx_out_of_buffer;
2368 stats->tx_dropped = sstats->tx_queue_dropped;
2369
2370 stats->rx_length_errors =
2371 PPORT_802_3_GET(pstats, a_in_range_length_errors) +
2372 PPORT_802_3_GET(pstats, a_out_of_range_length_field) +
2373 PPORT_802_3_GET(pstats, a_frame_too_long_errors);
2374 stats->rx_crc_errors =
2375 PPORT_802_3_GET(pstats, a_frame_check_sequence_errors);
2376 stats->rx_frame_errors = PPORT_802_3_GET(pstats, a_alignment_errors);
2377 stats->tx_aborted_errors = PPORT_2863_GET(pstats, if_out_discards);
2378 stats->tx_carrier_errors =
2379 PPORT_802_3_GET(pstats, a_symbol_error_during_carrier);
2380 stats->rx_errors = stats->rx_length_errors + stats->rx_crc_errors +
2381 stats->rx_frame_errors;
2382 stats->tx_errors = stats->tx_aborted_errors + stats->tx_carrier_errors;
2383
2384 /* vport multicast also counts packets that are dropped due to steering
2385 * or rx out of buffer
2386 */
2387 stats->multicast =
2388 VPORT_COUNTER_GET(vstats, received_eth_multicast.packets);
2389
2390 return stats;
2391 }
2392
2393 static void mlx5e_set_rx_mode(struct net_device *dev)
2394 {
2395 struct mlx5e_priv *priv = netdev_priv(dev);
2396
2397 queue_work(priv->wq, &priv->set_rx_mode_work);
2398 }
2399
2400 static int mlx5e_set_mac(struct net_device *netdev, void *addr)
2401 {
2402 struct mlx5e_priv *priv = netdev_priv(netdev);
2403 struct sockaddr *saddr = addr;
2404
2405 if (!is_valid_ether_addr(saddr->sa_data))
2406 return -EADDRNOTAVAIL;
2407
2408 netif_addr_lock_bh(netdev);
2409 ether_addr_copy(netdev->dev_addr, saddr->sa_data);
2410 netif_addr_unlock_bh(netdev);
2411
2412 queue_work(priv->wq, &priv->set_rx_mode_work);
2413
2414 return 0;
2415 }
2416
2417 #define MLX5E_SET_FEATURE(netdev, feature, enable) \
2418 do { \
2419 if (enable) \
2420 netdev->features |= feature; \
2421 else \
2422 netdev->features &= ~feature; \
2423 } while (0)
2424
2425 typedef int (*mlx5e_feature_handler)(struct net_device *netdev, bool enable);
2426
2427 static int set_feature_lro(struct net_device *netdev, bool enable)
2428 {
2429 struct mlx5e_priv *priv = netdev_priv(netdev);
2430 bool was_opened = test_bit(MLX5E_STATE_OPENED, &priv->state);
2431 int err;
2432
2433 mutex_lock(&priv->state_lock);
2434
2435 if (was_opened && (priv->params.rq_wq_type == MLX5_WQ_TYPE_LINKED_LIST))
2436 mlx5e_close_locked(priv->netdev);
2437
2438 priv->params.lro_en = enable;
2439 err = mlx5e_modify_tirs_lro(priv);
2440 if (err) {
2441 netdev_err(netdev, "lro modify failed, %d\n", err);
2442 priv->params.lro_en = !enable;
2443 }
2444
2445 if (was_opened && (priv->params.rq_wq_type == MLX5_WQ_TYPE_LINKED_LIST))
2446 mlx5e_open_locked(priv->netdev);
2447
2448 mutex_unlock(&priv->state_lock);
2449
2450 return err;
2451 }
2452
2453 static int set_feature_vlan_filter(struct net_device *netdev, bool enable)
2454 {
2455 struct mlx5e_priv *priv = netdev_priv(netdev);
2456
2457 if (enable)
2458 mlx5e_enable_vlan_filter(priv);
2459 else
2460 mlx5e_disable_vlan_filter(priv);
2461
2462 return 0;
2463 }
2464
2465 static int set_feature_tc_num_filters(struct net_device *netdev, bool enable)
2466 {
2467 struct mlx5e_priv *priv = netdev_priv(netdev);
2468
2469 if (!enable && mlx5e_tc_num_filters(priv)) {
2470 netdev_err(netdev,
2471 "Active offloaded tc filters, can't turn hw_tc_offload off\n");
2472 return -EINVAL;
2473 }
2474
2475 return 0;
2476 }
2477
2478 static int set_feature_rx_all(struct net_device *netdev, bool enable)
2479 {
2480 struct mlx5e_priv *priv = netdev_priv(netdev);
2481 struct mlx5_core_dev *mdev = priv->mdev;
2482
2483 return mlx5_set_port_fcs(mdev, !enable);
2484 }
2485
2486 static int set_feature_rx_vlan(struct net_device *netdev, bool enable)
2487 {
2488 struct mlx5e_priv *priv = netdev_priv(netdev);
2489 int err;
2490
2491 mutex_lock(&priv->state_lock);
2492
2493 priv->params.vlan_strip_disable = !enable;
2494 err = mlx5e_modify_rqs_vsd(priv, !enable);
2495 if (err)
2496 priv->params.vlan_strip_disable = enable;
2497
2498 mutex_unlock(&priv->state_lock);
2499
2500 return err;
2501 }
2502
2503 #ifdef CONFIG_RFS_ACCEL
2504 static int set_feature_arfs(struct net_device *netdev, bool enable)
2505 {
2506 struct mlx5e_priv *priv = netdev_priv(netdev);
2507 int err;
2508
2509 if (enable)
2510 err = mlx5e_arfs_enable(priv);
2511 else
2512 err = mlx5e_arfs_disable(priv);
2513
2514 return err;
2515 }
2516 #endif
2517
2518 static int mlx5e_handle_feature(struct net_device *netdev,
2519 netdev_features_t wanted_features,
2520 netdev_features_t feature,
2521 mlx5e_feature_handler feature_handler)
2522 {
2523 netdev_features_t changes = wanted_features ^ netdev->features;
2524 bool enable = !!(wanted_features & feature);
2525 int err;
2526
2527 if (!(changes & feature))
2528 return 0;
2529
2530 err = feature_handler(netdev, enable);
2531 if (err) {
2532 netdev_err(netdev, "%s feature 0x%llx failed err %d\n",
2533 enable ? "Enable" : "Disable", feature, err);
2534 return err;
2535 }
2536
2537 MLX5E_SET_FEATURE(netdev, feature, enable);
2538 return 0;
2539 }
2540
2541 static int mlx5e_set_features(struct net_device *netdev,
2542 netdev_features_t features)
2543 {
2544 int err;
2545
2546 err = mlx5e_handle_feature(netdev, features, NETIF_F_LRO,
2547 set_feature_lro);
2548 err |= mlx5e_handle_feature(netdev, features,
2549 NETIF_F_HW_VLAN_CTAG_FILTER,
2550 set_feature_vlan_filter);
2551 err |= mlx5e_handle_feature(netdev, features, NETIF_F_HW_TC,
2552 set_feature_tc_num_filters);
2553 err |= mlx5e_handle_feature(netdev, features, NETIF_F_RXALL,
2554 set_feature_rx_all);
2555 err |= mlx5e_handle_feature(netdev, features, NETIF_F_HW_VLAN_CTAG_RX,
2556 set_feature_rx_vlan);
2557 #ifdef CONFIG_RFS_ACCEL
2558 err |= mlx5e_handle_feature(netdev, features, NETIF_F_NTUPLE,
2559 set_feature_arfs);
2560 #endif
2561
2562 return err ? -EINVAL : 0;
2563 }
2564
2565 #define MXL5_HW_MIN_MTU 64
2566 #define MXL5E_MIN_MTU (MXL5_HW_MIN_MTU + ETH_FCS_LEN)
2567
2568 static int mlx5e_change_mtu(struct net_device *netdev, int new_mtu)
2569 {
2570 struct mlx5e_priv *priv = netdev_priv(netdev);
2571 struct mlx5_core_dev *mdev = priv->mdev;
2572 bool was_opened;
2573 u16 max_mtu;
2574 u16 min_mtu;
2575 int err = 0;
2576
2577 mlx5_query_port_max_mtu(mdev, &max_mtu, 1);
2578
2579 max_mtu = MLX5E_HW2SW_MTU(max_mtu);
2580 min_mtu = MLX5E_HW2SW_MTU(MXL5E_MIN_MTU);
2581
2582 if (new_mtu > max_mtu || new_mtu < min_mtu) {
2583 netdev_err(netdev,
2584 "%s: Bad MTU (%d), valid range is: [%d..%d]\n",
2585 __func__, new_mtu, min_mtu, max_mtu);
2586 return -EINVAL;
2587 }
2588
2589 mutex_lock(&priv->state_lock);
2590
2591 was_opened = test_bit(MLX5E_STATE_OPENED, &priv->state);
2592 if (was_opened)
2593 mlx5e_close_locked(netdev);
2594
2595 netdev->mtu = new_mtu;
2596
2597 if (was_opened)
2598 err = mlx5e_open_locked(netdev);
2599
2600 mutex_unlock(&priv->state_lock);
2601
2602 return err;
2603 }
2604
2605 static int mlx5e_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
2606 {
2607 switch (cmd) {
2608 case SIOCSHWTSTAMP:
2609 return mlx5e_hwstamp_set(dev, ifr);
2610 case SIOCGHWTSTAMP:
2611 return mlx5e_hwstamp_get(dev, ifr);
2612 default:
2613 return -EOPNOTSUPP;
2614 }
2615 }
2616
2617 static int mlx5e_set_vf_mac(struct net_device *dev, int vf, u8 *mac)
2618 {
2619 struct mlx5e_priv *priv = netdev_priv(dev);
2620 struct mlx5_core_dev *mdev = priv->mdev;
2621
2622 return mlx5_eswitch_set_vport_mac(mdev->priv.eswitch, vf + 1, mac);
2623 }
2624
2625 static int mlx5e_set_vf_vlan(struct net_device *dev, int vf, u16 vlan, u8 qos)
2626 {
2627 struct mlx5e_priv *priv = netdev_priv(dev);
2628 struct mlx5_core_dev *mdev = priv->mdev;
2629
2630 return mlx5_eswitch_set_vport_vlan(mdev->priv.eswitch, vf + 1,
2631 vlan, qos);
2632 }
2633
2634 static int mlx5e_set_vf_spoofchk(struct net_device *dev, int vf, bool setting)
2635 {
2636 struct mlx5e_priv *priv = netdev_priv(dev);
2637 struct mlx5_core_dev *mdev = priv->mdev;
2638
2639 return mlx5_eswitch_set_vport_spoofchk(mdev->priv.eswitch, vf + 1, setting);
2640 }
2641
2642 static int mlx5e_set_vf_trust(struct net_device *dev, int vf, bool setting)
2643 {
2644 struct mlx5e_priv *priv = netdev_priv(dev);
2645 struct mlx5_core_dev *mdev = priv->mdev;
2646
2647 return mlx5_eswitch_set_vport_trust(mdev->priv.eswitch, vf + 1, setting);
2648 }
2649 static int mlx5_vport_link2ifla(u8 esw_link)
2650 {
2651 switch (esw_link) {
2652 case MLX5_ESW_VPORT_ADMIN_STATE_DOWN:
2653 return IFLA_VF_LINK_STATE_DISABLE;
2654 case MLX5_ESW_VPORT_ADMIN_STATE_UP:
2655 return IFLA_VF_LINK_STATE_ENABLE;
2656 }
2657 return IFLA_VF_LINK_STATE_AUTO;
2658 }
2659
2660 static int mlx5_ifla_link2vport(u8 ifla_link)
2661 {
2662 switch (ifla_link) {
2663 case IFLA_VF_LINK_STATE_DISABLE:
2664 return MLX5_ESW_VPORT_ADMIN_STATE_DOWN;
2665 case IFLA_VF_LINK_STATE_ENABLE:
2666 return MLX5_ESW_VPORT_ADMIN_STATE_UP;
2667 }
2668 return MLX5_ESW_VPORT_ADMIN_STATE_AUTO;
2669 }
2670
2671 static int mlx5e_set_vf_link_state(struct net_device *dev, int vf,
2672 int link_state)
2673 {
2674 struct mlx5e_priv *priv = netdev_priv(dev);
2675 struct mlx5_core_dev *mdev = priv->mdev;
2676
2677 return mlx5_eswitch_set_vport_state(mdev->priv.eswitch, vf + 1,
2678 mlx5_ifla_link2vport(link_state));
2679 }
2680
2681 static int mlx5e_get_vf_config(struct net_device *dev,
2682 int vf, struct ifla_vf_info *ivi)
2683 {
2684 struct mlx5e_priv *priv = netdev_priv(dev);
2685 struct mlx5_core_dev *mdev = priv->mdev;
2686 int err;
2687
2688 err = mlx5_eswitch_get_vport_config(mdev->priv.eswitch, vf + 1, ivi);
2689 if (err)
2690 return err;
2691 ivi->linkstate = mlx5_vport_link2ifla(ivi->linkstate);
2692 return 0;
2693 }
2694
2695 static int mlx5e_get_vf_stats(struct net_device *dev,
2696 int vf, struct ifla_vf_stats *vf_stats)
2697 {
2698 struct mlx5e_priv *priv = netdev_priv(dev);
2699 struct mlx5_core_dev *mdev = priv->mdev;
2700
2701 return mlx5_eswitch_get_vport_stats(mdev->priv.eswitch, vf + 1,
2702 vf_stats);
2703 }
2704
2705 static void mlx5e_add_vxlan_port(struct net_device *netdev,
2706 struct udp_tunnel_info *ti)
2707 {
2708 struct mlx5e_priv *priv = netdev_priv(netdev);
2709
2710 if (ti->type != UDP_TUNNEL_TYPE_VXLAN)
2711 return;
2712
2713 if (!mlx5e_vxlan_allowed(priv->mdev))
2714 return;
2715
2716 mlx5e_vxlan_queue_work(priv, ti->sa_family, be16_to_cpu(ti->port), 1);
2717 }
2718
2719 static void mlx5e_del_vxlan_port(struct net_device *netdev,
2720 struct udp_tunnel_info *ti)
2721 {
2722 struct mlx5e_priv *priv = netdev_priv(netdev);
2723
2724 if (ti->type != UDP_TUNNEL_TYPE_VXLAN)
2725 return;
2726
2727 if (!mlx5e_vxlan_allowed(priv->mdev))
2728 return;
2729
2730 mlx5e_vxlan_queue_work(priv, ti->sa_family, be16_to_cpu(ti->port), 0);
2731 }
2732
2733 static netdev_features_t mlx5e_vxlan_features_check(struct mlx5e_priv *priv,
2734 struct sk_buff *skb,
2735 netdev_features_t features)
2736 {
2737 struct udphdr *udph;
2738 u16 proto;
2739 u16 port = 0;
2740
2741 switch (vlan_get_protocol(skb)) {
2742 case htons(ETH_P_IP):
2743 proto = ip_hdr(skb)->protocol;
2744 break;
2745 case htons(ETH_P_IPV6):
2746 proto = ipv6_hdr(skb)->nexthdr;
2747 break;
2748 default:
2749 goto out;
2750 }
2751
2752 if (proto == IPPROTO_UDP) {
2753 udph = udp_hdr(skb);
2754 port = be16_to_cpu(udph->dest);
2755 }
2756
2757 /* Verify if UDP port is being offloaded by HW */
2758 if (port && mlx5e_vxlan_lookup_port(priv, port))
2759 return features;
2760
2761 out:
2762 /* Disable CSUM and GSO if the udp dport is not offloaded by HW */
2763 return features & ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK);
2764 }
2765
2766 static netdev_features_t mlx5e_features_check(struct sk_buff *skb,
2767 struct net_device *netdev,
2768 netdev_features_t features)
2769 {
2770 struct mlx5e_priv *priv = netdev_priv(netdev);
2771
2772 features = vlan_features_check(skb, features);
2773 features = vxlan_features_check(skb, features);
2774
2775 /* Validate if the tunneled packet is being offloaded by HW */
2776 if (skb->encapsulation &&
2777 (features & NETIF_F_CSUM_MASK || features & NETIF_F_GSO_MASK))
2778 return mlx5e_vxlan_features_check(priv, skb, features);
2779
2780 return features;
2781 }
2782
2783 static void mlx5e_tx_timeout(struct net_device *dev)
2784 {
2785 struct mlx5e_priv *priv = netdev_priv(dev);
2786 bool sched_work = false;
2787 int i;
2788
2789 netdev_err(dev, "TX timeout detected\n");
2790
2791 for (i = 0; i < priv->params.num_channels * priv->params.num_tc; i++) {
2792 struct mlx5e_sq *sq = priv->txq_to_sq_map[i];
2793
2794 if (!netif_xmit_stopped(netdev_get_tx_queue(dev, i)))
2795 continue;
2796 sched_work = true;
2797 set_bit(MLX5E_SQ_STATE_TX_TIMEOUT, &sq->state);
2798 netdev_err(dev, "TX timeout on queue: %d, SQ: 0x%x, CQ: 0x%x, SQ Cons: 0x%x SQ Prod: 0x%x\n",
2799 i, sq->sqn, sq->cq.mcq.cqn, sq->cc, sq->pc);
2800 }
2801
2802 if (sched_work && test_bit(MLX5E_STATE_OPENED, &priv->state))
2803 schedule_work(&priv->tx_timeout_work);
2804 }
2805
2806 static const struct net_device_ops mlx5e_netdev_ops_basic = {
2807 .ndo_open = mlx5e_open,
2808 .ndo_stop = mlx5e_close,
2809 .ndo_start_xmit = mlx5e_xmit,
2810 .ndo_setup_tc = mlx5e_ndo_setup_tc,
2811 .ndo_select_queue = mlx5e_select_queue,
2812 .ndo_get_stats64 = mlx5e_get_stats,
2813 .ndo_set_rx_mode = mlx5e_set_rx_mode,
2814 .ndo_set_mac_address = mlx5e_set_mac,
2815 .ndo_vlan_rx_add_vid = mlx5e_vlan_rx_add_vid,
2816 .ndo_vlan_rx_kill_vid = mlx5e_vlan_rx_kill_vid,
2817 .ndo_set_features = mlx5e_set_features,
2818 .ndo_change_mtu = mlx5e_change_mtu,
2819 .ndo_do_ioctl = mlx5e_ioctl,
2820 .ndo_set_tx_maxrate = mlx5e_set_tx_maxrate,
2821 #ifdef CONFIG_RFS_ACCEL
2822 .ndo_rx_flow_steer = mlx5e_rx_flow_steer,
2823 #endif
2824 .ndo_tx_timeout = mlx5e_tx_timeout,
2825 };
2826
2827 static const struct net_device_ops mlx5e_netdev_ops_sriov = {
2828 .ndo_open = mlx5e_open,
2829 .ndo_stop = mlx5e_close,
2830 .ndo_start_xmit = mlx5e_xmit,
2831 .ndo_setup_tc = mlx5e_ndo_setup_tc,
2832 .ndo_select_queue = mlx5e_select_queue,
2833 .ndo_get_stats64 = mlx5e_get_stats,
2834 .ndo_set_rx_mode = mlx5e_set_rx_mode,
2835 .ndo_set_mac_address = mlx5e_set_mac,
2836 .ndo_vlan_rx_add_vid = mlx5e_vlan_rx_add_vid,
2837 .ndo_vlan_rx_kill_vid = mlx5e_vlan_rx_kill_vid,
2838 .ndo_set_features = mlx5e_set_features,
2839 .ndo_change_mtu = mlx5e_change_mtu,
2840 .ndo_do_ioctl = mlx5e_ioctl,
2841 .ndo_udp_tunnel_add = mlx5e_add_vxlan_port,
2842 .ndo_udp_tunnel_del = mlx5e_del_vxlan_port,
2843 .ndo_set_tx_maxrate = mlx5e_set_tx_maxrate,
2844 .ndo_features_check = mlx5e_features_check,
2845 #ifdef CONFIG_RFS_ACCEL
2846 .ndo_rx_flow_steer = mlx5e_rx_flow_steer,
2847 #endif
2848 .ndo_set_vf_mac = mlx5e_set_vf_mac,
2849 .ndo_set_vf_vlan = mlx5e_set_vf_vlan,
2850 .ndo_set_vf_spoofchk = mlx5e_set_vf_spoofchk,
2851 .ndo_set_vf_trust = mlx5e_set_vf_trust,
2852 .ndo_get_vf_config = mlx5e_get_vf_config,
2853 .ndo_set_vf_link_state = mlx5e_set_vf_link_state,
2854 .ndo_get_vf_stats = mlx5e_get_vf_stats,
2855 .ndo_tx_timeout = mlx5e_tx_timeout,
2856 };
2857
2858 static int mlx5e_check_required_hca_cap(struct mlx5_core_dev *mdev)
2859 {
2860 if (MLX5_CAP_GEN(mdev, port_type) != MLX5_CAP_PORT_TYPE_ETH)
2861 return -ENOTSUPP;
2862 if (!MLX5_CAP_GEN(mdev, eth_net_offloads) ||
2863 !MLX5_CAP_GEN(mdev, nic_flow_table) ||
2864 !MLX5_CAP_ETH(mdev, csum_cap) ||
2865 !MLX5_CAP_ETH(mdev, max_lso_cap) ||
2866 !MLX5_CAP_ETH(mdev, vlan_cap) ||
2867 !MLX5_CAP_ETH(mdev, rss_ind_tbl_cap) ||
2868 MLX5_CAP_FLOWTABLE(mdev,
2869 flow_table_properties_nic_receive.max_ft_level)
2870 < 3) {
2871 mlx5_core_warn(mdev,
2872 "Not creating net device, some required device capabilities are missing\n");
2873 return -ENOTSUPP;
2874 }
2875 if (!MLX5_CAP_ETH(mdev, self_lb_en_modifiable))
2876 mlx5_core_warn(mdev, "Self loop back prevention is not supported\n");
2877 if (!MLX5_CAP_GEN(mdev, cq_moderation))
2878 mlx5_core_warn(mdev, "CQ modiration is not supported\n");
2879
2880 return 0;
2881 }
2882
2883 u16 mlx5e_get_max_inline_cap(struct mlx5_core_dev *mdev)
2884 {
2885 int bf_buf_size = (1 << MLX5_CAP_GEN(mdev, log_bf_reg_size)) / 2;
2886
2887 return bf_buf_size -
2888 sizeof(struct mlx5e_tx_wqe) +
2889 2 /*sizeof(mlx5e_tx_wqe.inline_hdr_start)*/;
2890 }
2891
2892 #ifdef CONFIG_MLX5_CORE_EN_DCB
2893 static void mlx5e_ets_init(struct mlx5e_priv *priv)
2894 {
2895 int i;
2896
2897 priv->params.ets.ets_cap = mlx5_max_tc(priv->mdev) + 1;
2898 for (i = 0; i < priv->params.ets.ets_cap; i++) {
2899 priv->params.ets.tc_tx_bw[i] = MLX5E_MAX_BW_ALLOC;
2900 priv->params.ets.tc_tsa[i] = IEEE_8021QAZ_TSA_VENDOR;
2901 priv->params.ets.prio_tc[i] = i;
2902 }
2903
2904 /* tclass[prio=0]=1, tclass[prio=1]=0, tclass[prio=i]=i (for i>1) */
2905 priv->params.ets.prio_tc[0] = 1;
2906 priv->params.ets.prio_tc[1] = 0;
2907 }
2908 #endif
2909
2910 void mlx5e_build_default_indir_rqt(struct mlx5_core_dev *mdev,
2911 u32 *indirection_rqt, int len,
2912 int num_channels)
2913 {
2914 int node = mdev->priv.numa_node;
2915 int node_num_of_cores;
2916 int i;
2917
2918 if (node == -1)
2919 node = first_online_node;
2920
2921 node_num_of_cores = cpumask_weight(cpumask_of_node(node));
2922
2923 if (node_num_of_cores)
2924 num_channels = min_t(int, num_channels, node_num_of_cores);
2925
2926 for (i = 0; i < len; i++)
2927 indirection_rqt[i] = i % num_channels;
2928 }
2929
2930 static bool mlx5e_check_fragmented_striding_rq_cap(struct mlx5_core_dev *mdev)
2931 {
2932 return MLX5_CAP_GEN(mdev, striding_rq) &&
2933 MLX5_CAP_GEN(mdev, umr_ptr_rlky) &&
2934 MLX5_CAP_ETH(mdev, reg_umr_sq);
2935 }
2936
2937 static int mlx5e_get_pci_bw(struct mlx5_core_dev *mdev, u32 *pci_bw)
2938 {
2939 enum pcie_link_width width;
2940 enum pci_bus_speed speed;
2941 int err = 0;
2942
2943 err = pcie_get_minimum_link(mdev->pdev, &speed, &width);
2944 if (err)
2945 return err;
2946
2947 if (speed == PCI_SPEED_UNKNOWN || width == PCIE_LNK_WIDTH_UNKNOWN)
2948 return -EINVAL;
2949
2950 switch (speed) {
2951 case PCIE_SPEED_2_5GT:
2952 *pci_bw = 2500 * width;
2953 break;
2954 case PCIE_SPEED_5_0GT:
2955 *pci_bw = 5000 * width;
2956 break;
2957 case PCIE_SPEED_8_0GT:
2958 *pci_bw = 8000 * width;
2959 break;
2960 default:
2961 return -EINVAL;
2962 }
2963
2964 return 0;
2965 }
2966
2967 static bool cqe_compress_heuristic(u32 link_speed, u32 pci_bw)
2968 {
2969 return (link_speed && pci_bw &&
2970 (pci_bw < 40000) && (pci_bw < link_speed));
2971 }
2972
2973 void mlx5e_set_rx_cq_mode_params(struct mlx5e_params *params, u8 cq_period_mode)
2974 {
2975 params->rx_cq_period_mode = cq_period_mode;
2976
2977 params->rx_cq_moderation.pkts =
2978 MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_PKTS;
2979 params->rx_cq_moderation.usec =
2980 MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_USEC;
2981
2982 if (cq_period_mode == MLX5_CQ_PERIOD_MODE_START_FROM_CQE)
2983 params->rx_cq_moderation.usec =
2984 MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_USEC_FROM_CQE;
2985 }
2986
2987 static void mlx5e_query_min_inline(struct mlx5_core_dev *mdev,
2988 u8 *min_inline_mode)
2989 {
2990 switch (MLX5_CAP_ETH(mdev, wqe_inline_mode)) {
2991 case MLX5E_INLINE_MODE_L2:
2992 *min_inline_mode = MLX5_INLINE_MODE_L2;
2993 break;
2994 case MLX5E_INLINE_MODE_VPORT_CONTEXT:
2995 mlx5_query_nic_vport_min_inline(mdev,
2996 min_inline_mode);
2997 break;
2998 case MLX5_INLINE_MODE_NOT_REQUIRED:
2999 *min_inline_mode = MLX5_INLINE_MODE_NONE;
3000 break;
3001 }
3002 }
3003
3004 static void mlx5e_build_nic_netdev_priv(struct mlx5_core_dev *mdev,
3005 struct net_device *netdev,
3006 const struct mlx5e_profile *profile,
3007 void *ppriv)
3008 {
3009 struct mlx5e_priv *priv = netdev_priv(netdev);
3010 u32 link_speed = 0;
3011 u32 pci_bw = 0;
3012 u8 cq_period_mode = MLX5_CAP_GEN(mdev, cq_period_start_from_cqe) ?
3013 MLX5_CQ_PERIOD_MODE_START_FROM_CQE :
3014 MLX5_CQ_PERIOD_MODE_START_FROM_EQE;
3015
3016 priv->params.log_sq_size =
3017 MLX5E_PARAMS_DEFAULT_LOG_SQ_SIZE;
3018 priv->params.rq_wq_type = mlx5e_check_fragmented_striding_rq_cap(mdev) ?
3019 MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ :
3020 MLX5_WQ_TYPE_LINKED_LIST;
3021
3022 /* set CQE compression */
3023 priv->params.rx_cqe_compress_admin = false;
3024 if (MLX5_CAP_GEN(mdev, cqe_compression) &&
3025 MLX5_CAP_GEN(mdev, vport_group_manager)) {
3026 mlx5e_get_max_linkspeed(mdev, &link_speed);
3027 mlx5e_get_pci_bw(mdev, &pci_bw);
3028 mlx5_core_dbg(mdev, "Max link speed = %d, PCI BW = %d\n",
3029 link_speed, pci_bw);
3030 priv->params.rx_cqe_compress_admin =
3031 cqe_compress_heuristic(link_speed, pci_bw);
3032 }
3033
3034 priv->params.rx_cqe_compress = priv->params.rx_cqe_compress_admin;
3035
3036 switch (priv->params.rq_wq_type) {
3037 case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ:
3038 priv->params.log_rq_size = MLX5E_PARAMS_DEFAULT_LOG_RQ_SIZE_MPW;
3039 priv->params.mpwqe_log_stride_sz =
3040 priv->params.rx_cqe_compress ?
3041 MLX5_MPWRQ_LOG_STRIDE_SIZE_CQE_COMPRESS :
3042 MLX5_MPWRQ_LOG_STRIDE_SIZE;
3043 priv->params.mpwqe_log_num_strides = MLX5_MPWRQ_LOG_WQE_SZ -
3044 priv->params.mpwqe_log_stride_sz;
3045 priv->params.lro_en = true;
3046 break;
3047 default: /* MLX5_WQ_TYPE_LINKED_LIST */
3048 priv->params.log_rq_size = MLX5E_PARAMS_DEFAULT_LOG_RQ_SIZE;
3049 }
3050
3051 mlx5_core_info(mdev,
3052 "MLX5E: StrdRq(%d) RqSz(%ld) StrdSz(%ld) RxCqeCmprss(%d)\n",
3053 priv->params.rq_wq_type == MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ,
3054 BIT(priv->params.log_rq_size),
3055 BIT(priv->params.mpwqe_log_stride_sz),
3056 priv->params.rx_cqe_compress_admin);
3057
3058 priv->params.min_rx_wqes = mlx5_min_rx_wqes(priv->params.rq_wq_type,
3059 BIT(priv->params.log_rq_size));
3060
3061 priv->params.rx_am_enabled = MLX5_CAP_GEN(mdev, cq_moderation);
3062 mlx5e_set_rx_cq_mode_params(&priv->params, cq_period_mode);
3063
3064 priv->params.tx_cq_moderation.usec =
3065 MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_USEC;
3066 priv->params.tx_cq_moderation.pkts =
3067 MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_PKTS;
3068 priv->params.tx_max_inline = mlx5e_get_max_inline_cap(mdev);
3069 mlx5e_query_min_inline(mdev, &priv->params.tx_min_inline_mode);
3070 priv->params.num_tc = 1;
3071 priv->params.rss_hfunc = ETH_RSS_HASH_XOR;
3072
3073 netdev_rss_key_fill(priv->params.toeplitz_hash_key,
3074 sizeof(priv->params.toeplitz_hash_key));
3075
3076 mlx5e_build_default_indir_rqt(mdev, priv->params.indirection_rqt,
3077 MLX5E_INDIR_RQT_SIZE, profile->max_nch(mdev));
3078
3079 priv->params.lro_wqe_sz =
3080 MLX5E_PARAMS_DEFAULT_LRO_WQE_SZ;
3081
3082 /* Initialize pflags */
3083 MLX5E_SET_PRIV_FLAG(priv, MLX5E_PFLAG_RX_CQE_BASED_MODER,
3084 priv->params.rx_cq_period_mode == MLX5_CQ_PERIOD_MODE_START_FROM_CQE);
3085
3086 priv->mdev = mdev;
3087 priv->netdev = netdev;
3088 priv->params.num_channels = profile->max_nch(mdev);
3089 priv->profile = profile;
3090 priv->ppriv = ppriv;
3091
3092 #ifdef CONFIG_MLX5_CORE_EN_DCB
3093 mlx5e_ets_init(priv);
3094 #endif
3095
3096 mutex_init(&priv->state_lock);
3097
3098 INIT_WORK(&priv->update_carrier_work, mlx5e_update_carrier_work);
3099 INIT_WORK(&priv->set_rx_mode_work, mlx5e_set_rx_mode_work);
3100 INIT_WORK(&priv->tx_timeout_work, mlx5e_tx_timeout_work);
3101 INIT_DELAYED_WORK(&priv->update_stats_work, mlx5e_update_stats_work);
3102 }
3103
3104 static void mlx5e_set_netdev_dev_addr(struct net_device *netdev)
3105 {
3106 struct mlx5e_priv *priv = netdev_priv(netdev);
3107
3108 mlx5_query_nic_vport_mac_address(priv->mdev, 0, netdev->dev_addr);
3109 if (is_zero_ether_addr(netdev->dev_addr) &&
3110 !MLX5_CAP_GEN(priv->mdev, vport_group_manager)) {
3111 eth_hw_addr_random(netdev);
3112 mlx5_core_info(priv->mdev, "Assigned random MAC address %pM\n", netdev->dev_addr);
3113 }
3114 }
3115
3116 static const struct switchdev_ops mlx5e_switchdev_ops = {
3117 .switchdev_port_attr_get = mlx5e_attr_get,
3118 };
3119
3120 static void mlx5e_build_nic_netdev(struct net_device *netdev)
3121 {
3122 struct mlx5e_priv *priv = netdev_priv(netdev);
3123 struct mlx5_core_dev *mdev = priv->mdev;
3124 bool fcs_supported;
3125 bool fcs_enabled;
3126
3127 SET_NETDEV_DEV(netdev, &mdev->pdev->dev);
3128
3129 if (MLX5_CAP_GEN(mdev, vport_group_manager)) {
3130 netdev->netdev_ops = &mlx5e_netdev_ops_sriov;
3131 #ifdef CONFIG_MLX5_CORE_EN_DCB
3132 netdev->dcbnl_ops = &mlx5e_dcbnl_ops;
3133 #endif
3134 } else {
3135 netdev->netdev_ops = &mlx5e_netdev_ops_basic;
3136 }
3137
3138 netdev->watchdog_timeo = 15 * HZ;
3139
3140 netdev->ethtool_ops = &mlx5e_ethtool_ops;
3141
3142 netdev->vlan_features |= NETIF_F_SG;
3143 netdev->vlan_features |= NETIF_F_IP_CSUM;
3144 netdev->vlan_features |= NETIF_F_IPV6_CSUM;
3145 netdev->vlan_features |= NETIF_F_GRO;
3146 netdev->vlan_features |= NETIF_F_TSO;
3147 netdev->vlan_features |= NETIF_F_TSO6;
3148 netdev->vlan_features |= NETIF_F_RXCSUM;
3149 netdev->vlan_features |= NETIF_F_RXHASH;
3150
3151 if (!!MLX5_CAP_ETH(mdev, lro_cap))
3152 netdev->vlan_features |= NETIF_F_LRO;
3153
3154 netdev->hw_features = netdev->vlan_features;
3155 netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_TX;
3156 netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_RX;
3157 netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_FILTER;
3158
3159 if (mlx5e_vxlan_allowed(mdev)) {
3160 netdev->hw_features |= NETIF_F_GSO_UDP_TUNNEL |
3161 NETIF_F_GSO_UDP_TUNNEL_CSUM |
3162 NETIF_F_GSO_PARTIAL;
3163 netdev->hw_enc_features |= NETIF_F_IP_CSUM;
3164 netdev->hw_enc_features |= NETIF_F_IPV6_CSUM;
3165 netdev->hw_enc_features |= NETIF_F_TSO;
3166 netdev->hw_enc_features |= NETIF_F_TSO6;
3167 netdev->hw_enc_features |= NETIF_F_GSO_UDP_TUNNEL;
3168 netdev->hw_enc_features |= NETIF_F_GSO_UDP_TUNNEL_CSUM |
3169 NETIF_F_GSO_PARTIAL;
3170 netdev->gso_partial_features = NETIF_F_GSO_UDP_TUNNEL_CSUM;
3171 }
3172
3173 mlx5_query_port_fcs(mdev, &fcs_supported, &fcs_enabled);
3174
3175 if (fcs_supported)
3176 netdev->hw_features |= NETIF_F_RXALL;
3177
3178 netdev->features = netdev->hw_features;
3179 if (!priv->params.lro_en)
3180 netdev->features &= ~NETIF_F_LRO;
3181
3182 if (fcs_enabled)
3183 netdev->features &= ~NETIF_F_RXALL;
3184
3185 #define FT_CAP(f) MLX5_CAP_FLOWTABLE(mdev, flow_table_properties_nic_receive.f)
3186 if (FT_CAP(flow_modify_en) &&
3187 FT_CAP(modify_root) &&
3188 FT_CAP(identified_miss_table_mode) &&
3189 FT_CAP(flow_table_modify)) {
3190 netdev->hw_features |= NETIF_F_HW_TC;
3191 #ifdef CONFIG_RFS_ACCEL
3192 netdev->hw_features |= NETIF_F_NTUPLE;
3193 #endif
3194 }
3195
3196 netdev->features |= NETIF_F_HIGHDMA;
3197
3198 netdev->priv_flags |= IFF_UNICAST_FLT;
3199
3200 mlx5e_set_netdev_dev_addr(netdev);
3201
3202 #ifdef CONFIG_NET_SWITCHDEV
3203 if (MLX5_CAP_GEN(mdev, vport_group_manager))
3204 netdev->switchdev_ops = &mlx5e_switchdev_ops;
3205 #endif
3206 }
3207
3208 static void mlx5e_create_q_counter(struct mlx5e_priv *priv)
3209 {
3210 struct mlx5_core_dev *mdev = priv->mdev;
3211 int err;
3212
3213 err = mlx5_core_alloc_q_counter(mdev, &priv->q_counter);
3214 if (err) {
3215 mlx5_core_warn(mdev, "alloc queue counter failed, %d\n", err);
3216 priv->q_counter = 0;
3217 }
3218 }
3219
3220 static void mlx5e_destroy_q_counter(struct mlx5e_priv *priv)
3221 {
3222 if (!priv->q_counter)
3223 return;
3224
3225 mlx5_core_dealloc_q_counter(priv->mdev, priv->q_counter);
3226 }
3227
3228 static int mlx5e_create_umr_mkey(struct mlx5e_priv *priv)
3229 {
3230 struct mlx5_core_dev *mdev = priv->mdev;
3231 struct mlx5_create_mkey_mbox_in *in;
3232 struct mlx5_mkey_seg *mkc;
3233 int inlen = sizeof(*in);
3234 u64 npages =
3235 priv->profile->max_nch(mdev) * MLX5_CHANNEL_MAX_NUM_MTTS;
3236 int err;
3237
3238 in = mlx5_vzalloc(inlen);
3239 if (!in)
3240 return -ENOMEM;
3241
3242 mkc = &in->seg;
3243 mkc->status = MLX5_MKEY_STATUS_FREE;
3244 mkc->flags = MLX5_PERM_UMR_EN |
3245 MLX5_PERM_LOCAL_READ |
3246 MLX5_PERM_LOCAL_WRITE |
3247 MLX5_ACCESS_MODE_MTT;
3248
3249 mkc->qpn_mkey7_0 = cpu_to_be32(0xffffff << 8);
3250 mkc->flags_pd = cpu_to_be32(mdev->mlx5e_res.pdn);
3251 mkc->len = cpu_to_be64(npages << PAGE_SHIFT);
3252 mkc->xlt_oct_size = cpu_to_be32(mlx5e_get_mtt_octw(npages));
3253 mkc->log2_page_size = PAGE_SHIFT;
3254
3255 err = mlx5_core_create_mkey(mdev, &priv->umr_mkey, in, inlen, NULL,
3256 NULL, NULL);
3257
3258 kvfree(in);
3259
3260 return err;
3261 }
3262
3263 static void mlx5e_nic_init(struct mlx5_core_dev *mdev,
3264 struct net_device *netdev,
3265 const struct mlx5e_profile *profile,
3266 void *ppriv)
3267 {
3268 struct mlx5e_priv *priv = netdev_priv(netdev);
3269
3270 mlx5e_build_nic_netdev_priv(mdev, netdev, profile, ppriv);
3271 mlx5e_build_nic_netdev(netdev);
3272 mlx5e_vxlan_init(priv);
3273 }
3274
3275 static void mlx5e_nic_cleanup(struct mlx5e_priv *priv)
3276 {
3277 struct mlx5_core_dev *mdev = priv->mdev;
3278 struct mlx5_eswitch *esw = mdev->priv.eswitch;
3279
3280 mlx5e_vxlan_cleanup(priv);
3281
3282 if (MLX5_CAP_GEN(mdev, vport_group_manager))
3283 mlx5_eswitch_unregister_vport_rep(esw, 0);
3284 }
3285
3286 static int mlx5e_init_nic_rx(struct mlx5e_priv *priv)
3287 {
3288 struct mlx5_core_dev *mdev = priv->mdev;
3289 int err;
3290 int i;
3291
3292 err = mlx5e_create_indirect_rqts(priv);
3293 if (err) {
3294 mlx5_core_warn(mdev, "create indirect rqts failed, %d\n", err);
3295 return err;
3296 }
3297
3298 err = mlx5e_create_direct_rqts(priv);
3299 if (err) {
3300 mlx5_core_warn(mdev, "create direct rqts failed, %d\n", err);
3301 goto err_destroy_indirect_rqts;
3302 }
3303
3304 err = mlx5e_create_indirect_tirs(priv);
3305 if (err) {
3306 mlx5_core_warn(mdev, "create indirect tirs failed, %d\n", err);
3307 goto err_destroy_direct_rqts;
3308 }
3309
3310 err = mlx5e_create_direct_tirs(priv);
3311 if (err) {
3312 mlx5_core_warn(mdev, "create direct tirs failed, %d\n", err);
3313 goto err_destroy_indirect_tirs;
3314 }
3315
3316 err = mlx5e_create_flow_steering(priv);
3317 if (err) {
3318 mlx5_core_warn(mdev, "create flow steering failed, %d\n", err);
3319 goto err_destroy_direct_tirs;
3320 }
3321
3322 err = mlx5e_tc_init(priv);
3323 if (err)
3324 goto err_destroy_flow_steering;
3325
3326 return 0;
3327
3328 err_destroy_flow_steering:
3329 mlx5e_destroy_flow_steering(priv);
3330 err_destroy_direct_tirs:
3331 mlx5e_destroy_direct_tirs(priv);
3332 err_destroy_indirect_tirs:
3333 mlx5e_destroy_indirect_tirs(priv);
3334 err_destroy_direct_rqts:
3335 for (i = 0; i < priv->profile->max_nch(mdev); i++)
3336 mlx5e_destroy_rqt(priv, &priv->direct_tir[i].rqt);
3337 err_destroy_indirect_rqts:
3338 mlx5e_destroy_rqt(priv, &priv->indir_rqt);
3339 return err;
3340 }
3341
3342 static void mlx5e_cleanup_nic_rx(struct mlx5e_priv *priv)
3343 {
3344 int i;
3345
3346 mlx5e_tc_cleanup(priv);
3347 mlx5e_destroy_flow_steering(priv);
3348 mlx5e_destroy_direct_tirs(priv);
3349 mlx5e_destroy_indirect_tirs(priv);
3350 for (i = 0; i < priv->profile->max_nch(priv->mdev); i++)
3351 mlx5e_destroy_rqt(priv, &priv->direct_tir[i].rqt);
3352 mlx5e_destroy_rqt(priv, &priv->indir_rqt);
3353 }
3354
3355 static int mlx5e_init_nic_tx(struct mlx5e_priv *priv)
3356 {
3357 int err;
3358
3359 err = mlx5e_create_tises(priv);
3360 if (err) {
3361 mlx5_core_warn(priv->mdev, "create tises failed, %d\n", err);
3362 return err;
3363 }
3364
3365 #ifdef CONFIG_MLX5_CORE_EN_DCB
3366 mlx5e_dcbnl_ieee_setets_core(priv, &priv->params.ets);
3367 #endif
3368 return 0;
3369 }
3370
3371 static void mlx5e_nic_enable(struct mlx5e_priv *priv)
3372 {
3373 struct net_device *netdev = priv->netdev;
3374 struct mlx5_core_dev *mdev = priv->mdev;
3375 struct mlx5_eswitch *esw = mdev->priv.eswitch;
3376 struct mlx5_eswitch_rep rep;
3377
3378 if (mlx5e_vxlan_allowed(mdev)) {
3379 rtnl_lock();
3380 udp_tunnel_get_rx_info(netdev);
3381 rtnl_unlock();
3382 }
3383
3384 mlx5e_enable_async_events(priv);
3385 queue_work(priv->wq, &priv->set_rx_mode_work);
3386
3387 if (MLX5_CAP_GEN(mdev, vport_group_manager)) {
3388 rep.load = mlx5e_nic_rep_load;
3389 rep.unload = mlx5e_nic_rep_unload;
3390 rep.vport = 0;
3391 rep.priv_data = priv;
3392 mlx5_eswitch_register_vport_rep(esw, &rep);
3393 }
3394 }
3395
3396 static void mlx5e_nic_disable(struct mlx5e_priv *priv)
3397 {
3398 queue_work(priv->wq, &priv->set_rx_mode_work);
3399 mlx5e_disable_async_events(priv);
3400 }
3401
3402 static const struct mlx5e_profile mlx5e_nic_profile = {
3403 .init = mlx5e_nic_init,
3404 .cleanup = mlx5e_nic_cleanup,
3405 .init_rx = mlx5e_init_nic_rx,
3406 .cleanup_rx = mlx5e_cleanup_nic_rx,
3407 .init_tx = mlx5e_init_nic_tx,
3408 .cleanup_tx = mlx5e_cleanup_nic_tx,
3409 .enable = mlx5e_nic_enable,
3410 .disable = mlx5e_nic_disable,
3411 .update_stats = mlx5e_update_stats,
3412 .max_nch = mlx5e_get_max_num_channels,
3413 .max_tc = MLX5E_MAX_NUM_TC,
3414 };
3415
3416 void *mlx5e_create_netdev(struct mlx5_core_dev *mdev,
3417 const struct mlx5e_profile *profile, void *ppriv)
3418 {
3419 struct net_device *netdev;
3420 struct mlx5e_priv *priv;
3421 int nch = profile->max_nch(mdev);
3422 int err;
3423
3424 netdev = alloc_etherdev_mqs(sizeof(struct mlx5e_priv),
3425 nch * profile->max_tc,
3426 nch);
3427 if (!netdev) {
3428 mlx5_core_err(mdev, "alloc_etherdev_mqs() failed\n");
3429 return NULL;
3430 }
3431
3432 profile->init(mdev, netdev, profile, ppriv);
3433
3434 netif_carrier_off(netdev);
3435
3436 priv = netdev_priv(netdev);
3437
3438 priv->wq = create_singlethread_workqueue("mlx5e");
3439 if (!priv->wq)
3440 goto err_free_netdev;
3441
3442 err = mlx5e_create_umr_mkey(priv);
3443 if (err) {
3444 mlx5_core_err(mdev, "create umr mkey failed, %d\n", err);
3445 goto err_destroy_wq;
3446 }
3447
3448 err = profile->init_tx(priv);
3449 if (err)
3450 goto err_destroy_umr_mkey;
3451
3452 err = mlx5e_open_drop_rq(priv);
3453 if (err) {
3454 mlx5_core_err(mdev, "open drop rq failed, %d\n", err);
3455 goto err_cleanup_tx;
3456 }
3457
3458 err = profile->init_rx(priv);
3459 if (err)
3460 goto err_close_drop_rq;
3461
3462 mlx5e_create_q_counter(priv);
3463
3464 mlx5e_init_l2_addr(priv);
3465
3466 err = register_netdev(netdev);
3467 if (err) {
3468 mlx5_core_err(mdev, "register_netdev failed, %d\n", err);
3469 goto err_dealloc_q_counters;
3470 }
3471
3472 if (profile->enable)
3473 profile->enable(priv);
3474
3475 return priv;
3476
3477 err_dealloc_q_counters:
3478 mlx5e_destroy_q_counter(priv);
3479 profile->cleanup_rx(priv);
3480
3481 err_close_drop_rq:
3482 mlx5e_close_drop_rq(priv);
3483
3484 err_cleanup_tx:
3485 profile->cleanup_tx(priv);
3486
3487 err_destroy_umr_mkey:
3488 mlx5_core_destroy_mkey(mdev, &priv->umr_mkey);
3489
3490 err_destroy_wq:
3491 destroy_workqueue(priv->wq);
3492
3493 err_free_netdev:
3494 free_netdev(netdev);
3495
3496 return NULL;
3497 }
3498
3499 static void mlx5e_register_vport_rep(struct mlx5_core_dev *mdev)
3500 {
3501 struct mlx5_eswitch *esw = mdev->priv.eswitch;
3502 int total_vfs = MLX5_TOTAL_VPORTS(mdev);
3503 int vport;
3504
3505 if (!MLX5_CAP_GEN(mdev, vport_group_manager))
3506 return;
3507
3508 for (vport = 1; vport < total_vfs; vport++) {
3509 struct mlx5_eswitch_rep rep;
3510
3511 rep.load = mlx5e_vport_rep_load;
3512 rep.unload = mlx5e_vport_rep_unload;
3513 rep.vport = vport;
3514 mlx5_eswitch_register_vport_rep(esw, &rep);
3515 }
3516 }
3517
3518 static void *mlx5e_add(struct mlx5_core_dev *mdev)
3519 {
3520 struct mlx5_eswitch *esw = mdev->priv.eswitch;
3521 void *ppriv = NULL;
3522 void *ret;
3523
3524 if (mlx5e_check_required_hca_cap(mdev))
3525 return NULL;
3526
3527 if (mlx5e_create_mdev_resources(mdev))
3528 return NULL;
3529
3530 mlx5e_register_vport_rep(mdev);
3531
3532 if (MLX5_CAP_GEN(mdev, vport_group_manager))
3533 ppriv = &esw->offloads.vport_reps[0];
3534
3535 ret = mlx5e_create_netdev(mdev, &mlx5e_nic_profile, ppriv);
3536 if (!ret) {
3537 mlx5e_destroy_mdev_resources(mdev);
3538 return NULL;
3539 }
3540 return ret;
3541 }
3542
3543 void mlx5e_destroy_netdev(struct mlx5_core_dev *mdev, struct mlx5e_priv *priv)
3544 {
3545 const struct mlx5e_profile *profile = priv->profile;
3546 struct net_device *netdev = priv->netdev;
3547
3548 set_bit(MLX5E_STATE_DESTROYING, &priv->state);
3549 if (profile->disable)
3550 profile->disable(priv);
3551
3552 flush_workqueue(priv->wq);
3553 if (test_bit(MLX5_INTERFACE_STATE_SHUTDOWN, &mdev->intf_state)) {
3554 netif_device_detach(netdev);
3555 mlx5e_close(netdev);
3556 } else {
3557 unregister_netdev(netdev);
3558 }
3559
3560 mlx5e_destroy_q_counter(priv);
3561 profile->cleanup_rx(priv);
3562 mlx5e_close_drop_rq(priv);
3563 profile->cleanup_tx(priv);
3564 mlx5_core_destroy_mkey(priv->mdev, &priv->umr_mkey);
3565 cancel_delayed_work_sync(&priv->update_stats_work);
3566 destroy_workqueue(priv->wq);
3567 if (profile->cleanup)
3568 profile->cleanup(priv);
3569
3570 if (!test_bit(MLX5_INTERFACE_STATE_SHUTDOWN, &mdev->intf_state))
3571 free_netdev(netdev);
3572 }
3573
3574 static void mlx5e_remove(struct mlx5_core_dev *mdev, void *vpriv)
3575 {
3576 struct mlx5_eswitch *esw = mdev->priv.eswitch;
3577 int total_vfs = MLX5_TOTAL_VPORTS(mdev);
3578 struct mlx5e_priv *priv = vpriv;
3579 int vport;
3580
3581 mlx5e_destroy_netdev(mdev, priv);
3582
3583 for (vport = 1; vport < total_vfs; vport++)
3584 mlx5_eswitch_unregister_vport_rep(esw, vport);
3585
3586 mlx5e_destroy_mdev_resources(mdev);
3587 }
3588
3589 static void *mlx5e_get_netdev(void *vpriv)
3590 {
3591 struct mlx5e_priv *priv = vpriv;
3592
3593 return priv->netdev;
3594 }
3595
3596 static struct mlx5_interface mlx5e_interface = {
3597 .add = mlx5e_add,
3598 .remove = mlx5e_remove,
3599 .event = mlx5e_async_event,
3600 .protocol = MLX5_INTERFACE_PROTOCOL_ETH,
3601 .get_dev = mlx5e_get_netdev,
3602 };
3603
3604 void mlx5e_init(void)
3605 {
3606 mlx5e_build_ptys2ethtool_map();
3607 mlx5_register_interface(&mlx5e_interface);
3608 }
3609
3610 void mlx5e_cleanup(void)
3611 {
3612 mlx5_unregister_interface(&mlx5e_interface);
3613 }
Linux kernel - Deliverables
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