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net/mlx5e: Fix checksum handling for non-stripped vlan packets
[linux-2.6/btrfs-unstable.git] / drivers / net / ethernet / mellanox / mlx5 / core / en_main.c
blob5bad17d37d7bcb590fedf465d17e3ee3b8d9148a
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 struct mlx5e_rq_param {
43 u32 rqc[MLX5_ST_SZ_DW(rqc)];
44 struct mlx5_wq_param wq;
45 };
46
47 struct mlx5e_sq_param {
48 u32 sqc[MLX5_ST_SZ_DW(sqc)];
49 struct mlx5_wq_param wq;
50 u16 max_inline;
51 bool icosq;
52 };
53
54 struct mlx5e_cq_param {
55 u32 cqc[MLX5_ST_SZ_DW(cqc)];
56 struct mlx5_wq_param wq;
57 u16 eq_ix;
58 };
59
60 struct mlx5e_channel_param {
61 struct mlx5e_rq_param rq;
62 struct mlx5e_sq_param sq;
63 struct mlx5e_sq_param icosq;
64 struct mlx5e_cq_param rx_cq;
65 struct mlx5e_cq_param tx_cq;
66 struct mlx5e_cq_param icosq_cq;
67 };
68
69 static void mlx5e_update_carrier(struct mlx5e_priv *priv)
70 {
71 struct mlx5_core_dev *mdev = priv->mdev;
72 u8 port_state;
73
74 port_state = mlx5_query_vport_state(mdev,
75 MLX5_QUERY_VPORT_STATE_IN_OP_MOD_VNIC_VPORT, 0);
76
77 if (port_state == VPORT_STATE_UP)
78 netif_carrier_on(priv->netdev);
79 else
80 netif_carrier_off(priv->netdev);
81 }
82
83 static void mlx5e_update_carrier_work(struct work_struct *work)
84 {
85 struct mlx5e_priv *priv = container_of(work, struct mlx5e_priv,
86 update_carrier_work);
87
88 mutex_lock(&priv->state_lock);
89 if (test_bit(MLX5E_STATE_OPENED, &priv->state))
90 mlx5e_update_carrier(priv);
91 mutex_unlock(&priv->state_lock);
92 }
93
94 static void mlx5e_update_sw_counters(struct mlx5e_priv *priv)
95 {
96 struct mlx5e_sw_stats *s = &priv->stats.sw;
97 struct mlx5e_rq_stats *rq_stats;
98 struct mlx5e_sq_stats *sq_stats;
99 u64 tx_offload_none = 0;
100 int i, j;
101
102 memset(s, 0, sizeof(*s));
103 for (i = 0; i < priv->params.num_channels; i++) {
104 rq_stats = &priv->channel[i]->rq.stats;
105
106 s->rx_packets += rq_stats->packets;
107 s->rx_bytes += rq_stats->bytes;
108 s->lro_packets += rq_stats->lro_packets;
109 s->lro_bytes += rq_stats->lro_bytes;
110 s->rx_csum_none += rq_stats->csum_none;
111 s->rx_csum_sw += rq_stats->csum_sw;
112 s->rx_csum_inner += rq_stats->csum_inner;
113 s->rx_wqe_err += rq_stats->wqe_err;
114 s->rx_mpwqe_filler += rq_stats->mpwqe_filler;
115 s->rx_mpwqe_frag += rq_stats->mpwqe_frag;
116 s->rx_buff_alloc_err += rq_stats->buff_alloc_err;
117
118 for (j = 0; j < priv->params.num_tc; j++) {
119 sq_stats = &priv->channel[i]->sq[j].stats;
120
121 s->tx_packets += sq_stats->packets;
122 s->tx_bytes += sq_stats->bytes;
123 s->tso_packets += sq_stats->tso_packets;
124 s->tso_bytes += sq_stats->tso_bytes;
125 s->tso_inner_packets += sq_stats->tso_inner_packets;
126 s->tso_inner_bytes += sq_stats->tso_inner_bytes;
127 s->tx_queue_stopped += sq_stats->stopped;
128 s->tx_queue_wake += sq_stats->wake;
129 s->tx_queue_dropped += sq_stats->dropped;
130 s->tx_csum_inner += sq_stats->csum_offload_inner;
131 tx_offload_none += sq_stats->csum_offload_none;
132 }
133 }
134
135 /* Update calculated offload counters */
136 s->tx_csum_offload = s->tx_packets - tx_offload_none - s->tx_csum_inner;
137 s->rx_csum_good = s->rx_packets - s->rx_csum_none -
138 s->rx_csum_sw;
139
140 s->link_down_events = MLX5_GET(ppcnt_reg,
141 priv->stats.pport.phy_counters,
142 counter_set.phys_layer_cntrs.link_down_events);
143 }
144
145 static void mlx5e_update_vport_counters(struct mlx5e_priv *priv)
146 {
147 int outlen = MLX5_ST_SZ_BYTES(query_vport_counter_out);
148 u32 *out = (u32 *)priv->stats.vport.query_vport_out;
149 u32 in[MLX5_ST_SZ_DW(query_vport_counter_in)];
150 struct mlx5_core_dev *mdev = priv->mdev;
151
152 memset(in, 0, sizeof(in));
153
154 MLX5_SET(query_vport_counter_in, in, opcode,
155 MLX5_CMD_OP_QUERY_VPORT_COUNTER);
156 MLX5_SET(query_vport_counter_in, in, op_mod, 0);
157 MLX5_SET(query_vport_counter_in, in, other_vport, 0);
158
159 memset(out, 0, outlen);
160
161 mlx5_cmd_exec(mdev, in, sizeof(in), out, outlen);
162 }
163
164 static void mlx5e_update_pport_counters(struct mlx5e_priv *priv)
165 {
166 struct mlx5e_pport_stats *pstats = &priv->stats.pport;
167 struct mlx5_core_dev *mdev = priv->mdev;
168 int sz = MLX5_ST_SZ_BYTES(ppcnt_reg);
169 int prio;
170 void *out;
171 u32 *in;
172
173 in = mlx5_vzalloc(sz);
174 if (!in)
175 goto free_out;
176
177 MLX5_SET(ppcnt_reg, in, local_port, 1);
178
179 out = pstats->IEEE_802_3_counters;
180 MLX5_SET(ppcnt_reg, in, grp, MLX5_IEEE_802_3_COUNTERS_GROUP);
181 mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0);
182
183 out = pstats->RFC_2863_counters;
184 MLX5_SET(ppcnt_reg, in, grp, MLX5_RFC_2863_COUNTERS_GROUP);
185 mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0);
186
187 out = pstats->RFC_2819_counters;
188 MLX5_SET(ppcnt_reg, in, grp, MLX5_RFC_2819_COUNTERS_GROUP);
189 mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0);
190
191 out = pstats->phy_counters;
192 MLX5_SET(ppcnt_reg, in, grp, MLX5_PHYSICAL_LAYER_COUNTERS_GROUP);
193 mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0);
194
195 MLX5_SET(ppcnt_reg, in, grp, MLX5_PER_PRIORITY_COUNTERS_GROUP);
196 for (prio = 0; prio < NUM_PPORT_PRIO; prio++) {
197 out = pstats->per_prio_counters[prio];
198 MLX5_SET(ppcnt_reg, in, prio_tc, prio);
199 mlx5_core_access_reg(mdev, in, sz, out, sz,
200 MLX5_REG_PPCNT, 0, 0);
201 }
202
203 free_out:
204 kvfree(in);
205 }
206
207 static void mlx5e_update_q_counter(struct mlx5e_priv *priv)
208 {
209 struct mlx5e_qcounter_stats *qcnt = &priv->stats.qcnt;
210
211 if (!priv->q_counter)
212 return;
213
214 mlx5_core_query_out_of_buffer(priv->mdev, priv->q_counter,
215 &qcnt->rx_out_of_buffer);
216 }
217
218 void mlx5e_update_stats(struct mlx5e_priv *priv)
219 {
220 mlx5e_update_q_counter(priv);
221 mlx5e_update_vport_counters(priv);
222 mlx5e_update_pport_counters(priv);
223 mlx5e_update_sw_counters(priv);
224 }
225
226 static void mlx5e_update_stats_work(struct work_struct *work)
227 {
228 struct delayed_work *dwork = to_delayed_work(work);
229 struct mlx5e_priv *priv = container_of(dwork, struct mlx5e_priv,
230 update_stats_work);
231 mutex_lock(&priv->state_lock);
232 if (test_bit(MLX5E_STATE_OPENED, &priv->state)) {
233 mlx5e_update_stats(priv);
234 schedule_delayed_work(dwork,
235 msecs_to_jiffies(
236 MLX5E_UPDATE_STATS_INTERVAL));
237 }
238 mutex_unlock(&priv->state_lock);
239 }
240
241 static void mlx5e_async_event(struct mlx5_core_dev *mdev, void *vpriv,
242 enum mlx5_dev_event event, unsigned long param)
243 {
244 struct mlx5e_priv *priv = vpriv;
245
246 if (!test_bit(MLX5E_STATE_ASYNC_EVENTS_ENABLE, &priv->state))
247 return;
248
249 switch (event) {
250 case MLX5_DEV_EVENT_PORT_UP:
251 case MLX5_DEV_EVENT_PORT_DOWN:
252 schedule_work(&priv->update_carrier_work);
253 break;
254
255 default:
256 break;
257 }
258 }
259
260 static void mlx5e_enable_async_events(struct mlx5e_priv *priv)
261 {
262 set_bit(MLX5E_STATE_ASYNC_EVENTS_ENABLE, &priv->state);
263 }
264
265 static void mlx5e_disable_async_events(struct mlx5e_priv *priv)
266 {
267 clear_bit(MLX5E_STATE_ASYNC_EVENTS_ENABLE, &priv->state);
268 synchronize_irq(mlx5_get_msix_vec(priv->mdev, MLX5_EQ_VEC_ASYNC));
269 }
270
271 #define MLX5E_HW2SW_MTU(hwmtu) (hwmtu - (ETH_HLEN + VLAN_HLEN + ETH_FCS_LEN))
272 #define MLX5E_SW2HW_MTU(swmtu) (swmtu + (ETH_HLEN + VLAN_HLEN + ETH_FCS_LEN))
273
274 static int mlx5e_create_rq(struct mlx5e_channel *c,
275 struct mlx5e_rq_param *param,
276 struct mlx5e_rq *rq)
277 {
278 struct mlx5e_priv *priv = c->priv;
279 struct mlx5_core_dev *mdev = priv->mdev;
280 void *rqc = param->rqc;
281 void *rqc_wq = MLX5_ADDR_OF(rqc, rqc, wq);
282 u32 byte_count;
283 int wq_sz;
284 int err;
285 int i;
286
287 param->wq.db_numa_node = cpu_to_node(c->cpu);
288
289 err = mlx5_wq_ll_create(mdev, &param->wq, rqc_wq, &rq->wq,
290 &rq->wq_ctrl);
291 if (err)
292 return err;
293
294 rq->wq.db = &rq->wq.db[MLX5_RCV_DBR];
295
296 wq_sz = mlx5_wq_ll_get_size(&rq->wq);
297
298 switch (priv->params.rq_wq_type) {
299 case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ:
300 rq->wqe_info = kzalloc_node(wq_sz * sizeof(*rq->wqe_info),
301 GFP_KERNEL, cpu_to_node(c->cpu));
302 if (!rq->wqe_info) {
303 err = -ENOMEM;
304 goto err_rq_wq_destroy;
305 }
306 rq->handle_rx_cqe = mlx5e_handle_rx_cqe_mpwrq;
307 rq->alloc_wqe = mlx5e_alloc_rx_mpwqe;
308
309 rq->wqe_sz = MLX5_MPWRQ_NUM_STRIDES * MLX5_MPWRQ_STRIDE_SIZE;
310 byte_count = rq->wqe_sz;
311 break;
312 default: /* MLX5_WQ_TYPE_LINKED_LIST */
313 rq->skb = kzalloc_node(wq_sz * sizeof(*rq->skb), GFP_KERNEL,
314 cpu_to_node(c->cpu));
315 if (!rq->skb) {
316 err = -ENOMEM;
317 goto err_rq_wq_destroy;
318 }
319 rq->handle_rx_cqe = mlx5e_handle_rx_cqe;
320 rq->alloc_wqe = mlx5e_alloc_rx_wqe;
321
322 rq->wqe_sz = (priv->params.lro_en) ?
323 priv->params.lro_wqe_sz :
324 MLX5E_SW2HW_MTU(priv->netdev->mtu);
325 rq->wqe_sz = SKB_DATA_ALIGN(rq->wqe_sz);
326 byte_count = rq->wqe_sz;
327 byte_count |= MLX5_HW_START_PADDING;
328 }
329
330 for (i = 0; i < wq_sz; i++) {
331 struct mlx5e_rx_wqe *wqe = mlx5_wq_ll_get_wqe(&rq->wq, i);
332
333 wqe->data.byte_count = cpu_to_be32(byte_count);
334 }
335
336 rq->wq_type = priv->params.rq_wq_type;
337 rq->pdev = c->pdev;
338 rq->netdev = c->netdev;
339 rq->tstamp = &priv->tstamp;
340 rq->channel = c;
341 rq->ix = c->ix;
342 rq->priv = c->priv;
343 rq->mkey_be = c->mkey_be;
344 rq->umr_mkey_be = cpu_to_be32(c->priv->umr_mkey.key);
345
346 return 0;
347
348 err_rq_wq_destroy:
349 mlx5_wq_destroy(&rq->wq_ctrl);
350
351 return err;
352 }
353
354 static void mlx5e_destroy_rq(struct mlx5e_rq *rq)
355 {
356 switch (rq->wq_type) {
357 case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ:
358 kfree(rq->wqe_info);
359 break;
360 default: /* MLX5_WQ_TYPE_LINKED_LIST */
361 kfree(rq->skb);
362 }
363
364 mlx5_wq_destroy(&rq->wq_ctrl);
365 }
366
367 static int mlx5e_enable_rq(struct mlx5e_rq *rq, struct mlx5e_rq_param *param)
368 {
369 struct mlx5e_priv *priv = rq->priv;
370 struct mlx5_core_dev *mdev = priv->mdev;
371
372 void *in;
373 void *rqc;
374 void *wq;
375 int inlen;
376 int err;
377
378 inlen = MLX5_ST_SZ_BYTES(create_rq_in) +
379 sizeof(u64) * rq->wq_ctrl.buf.npages;
380 in = mlx5_vzalloc(inlen);
381 if (!in)
382 return -ENOMEM;
383
384 rqc = MLX5_ADDR_OF(create_rq_in, in, ctx);
385 wq = MLX5_ADDR_OF(rqc, rqc, wq);
386
387 memcpy(rqc, param->rqc, sizeof(param->rqc));
388
389 MLX5_SET(rqc, rqc, cqn, rq->cq.mcq.cqn);
390 MLX5_SET(rqc, rqc, state, MLX5_RQC_STATE_RST);
391 MLX5_SET(rqc, rqc, flush_in_error_en, 1);
392 MLX5_SET(rqc, rqc, vsd, priv->params.vlan_strip_disable);
393 MLX5_SET(wq, wq, log_wq_pg_sz, rq->wq_ctrl.buf.page_shift -
394 MLX5_ADAPTER_PAGE_SHIFT);
395 MLX5_SET64(wq, wq, dbr_addr, rq->wq_ctrl.db.dma);
396
397 mlx5_fill_page_array(&rq->wq_ctrl.buf,
398 (__be64 *)MLX5_ADDR_OF(wq, wq, pas));
399
400 err = mlx5_core_create_rq(mdev, in, inlen, &rq->rqn);
401
402 kvfree(in);
403
404 return err;
405 }
406
407 static int mlx5e_modify_rq_state(struct mlx5e_rq *rq, int curr_state,
408 int next_state)
409 {
410 struct mlx5e_channel *c = rq->channel;
411 struct mlx5e_priv *priv = c->priv;
412 struct mlx5_core_dev *mdev = priv->mdev;
413
414 void *in;
415 void *rqc;
416 int inlen;
417 int err;
418
419 inlen = MLX5_ST_SZ_BYTES(modify_rq_in);
420 in = mlx5_vzalloc(inlen);
421 if (!in)
422 return -ENOMEM;
423
424 rqc = MLX5_ADDR_OF(modify_rq_in, in, ctx);
425
426 MLX5_SET(modify_rq_in, in, rq_state, curr_state);
427 MLX5_SET(rqc, rqc, state, next_state);
428
429 err = mlx5_core_modify_rq(mdev, rq->rqn, in, inlen);
430
431 kvfree(in);
432
433 return err;
434 }
435
436 static int mlx5e_modify_rq_vsd(struct mlx5e_rq *rq, bool vsd)
437 {
438 struct mlx5e_channel *c = rq->channel;
439 struct mlx5e_priv *priv = c->priv;
440 struct mlx5_core_dev *mdev = priv->mdev;
441
442 void *in;
443 void *rqc;
444 int inlen;
445 int err;
446
447 inlen = MLX5_ST_SZ_BYTES(modify_rq_in);
448 in = mlx5_vzalloc(inlen);
449 if (!in)
450 return -ENOMEM;
451
452 rqc = MLX5_ADDR_OF(modify_rq_in, in, ctx);
453
454 MLX5_SET(modify_rq_in, in, rq_state, MLX5_RQC_STATE_RDY);
455 MLX5_SET64(modify_rq_in, in, modify_bitmask, MLX5_RQ_BITMASK_VSD);
456 MLX5_SET(rqc, rqc, vsd, vsd);
457 MLX5_SET(rqc, rqc, state, MLX5_RQC_STATE_RDY);
458
459 err = mlx5_core_modify_rq(mdev, rq->rqn, in, inlen);
460
461 kvfree(in);
462
463 return err;
464 }
465
466 static void mlx5e_disable_rq(struct mlx5e_rq *rq)
467 {
468 mlx5_core_destroy_rq(rq->priv->mdev, rq->rqn);
469 }
470
471 static int mlx5e_wait_for_min_rx_wqes(struct mlx5e_rq *rq)
472 {
473 unsigned long exp_time = jiffies + msecs_to_jiffies(20000);
474 struct mlx5e_channel *c = rq->channel;
475 struct mlx5e_priv *priv = c->priv;
476 struct mlx5_wq_ll *wq = &rq->wq;
477
478 while (time_before(jiffies, exp_time)) {
479 if (wq->cur_sz >= priv->params.min_rx_wqes)
480 return 0;
481
482 msleep(20);
483 }
484
485 return -ETIMEDOUT;
486 }
487
488 static int mlx5e_open_rq(struct mlx5e_channel *c,
489 struct mlx5e_rq_param *param,
490 struct mlx5e_rq *rq)
491 {
492 struct mlx5e_sq *sq = &c->icosq;
493 u16 pi = sq->pc & sq->wq.sz_m1;
494 int err;
495
496 err = mlx5e_create_rq(c, param, rq);
497 if (err)
498 return err;
499
500 err = mlx5e_enable_rq(rq, param);
501 if (err)
502 goto err_destroy_rq;
503
504 err = mlx5e_modify_rq_state(rq, MLX5_RQC_STATE_RST, MLX5_RQC_STATE_RDY);
505 if (err)
506 goto err_disable_rq;
507
508 set_bit(MLX5E_RQ_STATE_POST_WQES_ENABLE, &rq->state);
509
510 sq->ico_wqe_info[pi].opcode = MLX5_OPCODE_NOP;
511 sq->ico_wqe_info[pi].num_wqebbs = 1;
512 mlx5e_send_nop(sq, true); /* trigger mlx5e_post_rx_wqes() */
513
514 return 0;
515
516 err_disable_rq:
517 mlx5e_disable_rq(rq);
518 err_destroy_rq:
519 mlx5e_destroy_rq(rq);
520
521 return err;
522 }
523
524 static void mlx5e_close_rq(struct mlx5e_rq *rq)
525 {
526 clear_bit(MLX5E_RQ_STATE_POST_WQES_ENABLE, &rq->state);
527 napi_synchronize(&rq->channel->napi); /* prevent mlx5e_post_rx_wqes */
528
529 mlx5e_modify_rq_state(rq, MLX5_RQC_STATE_RDY, MLX5_RQC_STATE_ERR);
530 while (!mlx5_wq_ll_is_empty(&rq->wq))
531 msleep(20);
532
533 /* avoid destroying rq before mlx5e_poll_rx_cq() is done with it */
534 napi_synchronize(&rq->channel->napi);
535
536 mlx5e_disable_rq(rq);
537 mlx5e_destroy_rq(rq);
538 }
539
540 static void mlx5e_free_sq_db(struct mlx5e_sq *sq)
541 {
542 kfree(sq->wqe_info);
543 kfree(sq->dma_fifo);
544 kfree(sq->skb);
545 }
546
547 static int mlx5e_alloc_sq_db(struct mlx5e_sq *sq, int numa)
548 {
549 int wq_sz = mlx5_wq_cyc_get_size(&sq->wq);
550 int df_sz = wq_sz * MLX5_SEND_WQEBB_NUM_DS;
551
552 sq->skb = kzalloc_node(wq_sz * sizeof(*sq->skb), GFP_KERNEL, numa);
553 sq->dma_fifo = kzalloc_node(df_sz * sizeof(*sq->dma_fifo), GFP_KERNEL,
554 numa);
555 sq->wqe_info = kzalloc_node(wq_sz * sizeof(*sq->wqe_info), GFP_KERNEL,
556 numa);
557
558 if (!sq->skb || !sq->dma_fifo || !sq->wqe_info) {
559 mlx5e_free_sq_db(sq);
560 return -ENOMEM;
561 }
562
563 sq->dma_fifo_mask = df_sz - 1;
564
565 return 0;
566 }
567
568 static int mlx5e_create_sq(struct mlx5e_channel *c,
569 int tc,
570 struct mlx5e_sq_param *param,
571 struct mlx5e_sq *sq)
572 {
573 struct mlx5e_priv *priv = c->priv;
574 struct mlx5_core_dev *mdev = priv->mdev;
575
576 void *sqc = param->sqc;
577 void *sqc_wq = MLX5_ADDR_OF(sqc, sqc, wq);
578 int err;
579
580 err = mlx5_alloc_map_uar(mdev, &sq->uar, true);
581 if (err)
582 return err;
583
584 param->wq.db_numa_node = cpu_to_node(c->cpu);
585
586 err = mlx5_wq_cyc_create(mdev, &param->wq, sqc_wq, &sq->wq,
587 &sq->wq_ctrl);
588 if (err)
589 goto err_unmap_free_uar;
590
591 sq->wq.db = &sq->wq.db[MLX5_SND_DBR];
592 if (sq->uar.bf_map) {
593 set_bit(MLX5E_SQ_STATE_BF_ENABLE, &sq->state);
594 sq->uar_map = sq->uar.bf_map;
595 } else {
596 sq->uar_map = sq->uar.map;
597 }
598 sq->bf_buf_size = (1 << MLX5_CAP_GEN(mdev, log_bf_reg_size)) / 2;
599 sq->max_inline = param->max_inline;
600
601 err = mlx5e_alloc_sq_db(sq, cpu_to_node(c->cpu));
602 if (err)
603 goto err_sq_wq_destroy;
604
605 if (param->icosq) {
606 u8 wq_sz = mlx5_wq_cyc_get_size(&sq->wq);
607
608 sq->ico_wqe_info = kzalloc_node(sizeof(*sq->ico_wqe_info) *
609 wq_sz,
610 GFP_KERNEL,
611 cpu_to_node(c->cpu));
612 if (!sq->ico_wqe_info) {
613 err = -ENOMEM;
614 goto err_free_sq_db;
615 }
616 } else {
617 int txq_ix;
618
619 txq_ix = c->ix + tc * priv->params.num_channels;
620 sq->txq = netdev_get_tx_queue(priv->netdev, txq_ix);
621 priv->txq_to_sq_map[txq_ix] = sq;
622 }
623
624 sq->pdev = c->pdev;
625 sq->tstamp = &priv->tstamp;
626 sq->mkey_be = c->mkey_be;
627 sq->channel = c;
628 sq->tc = tc;
629 sq->edge = (sq->wq.sz_m1 + 1) - MLX5_SEND_WQE_MAX_WQEBBS;
630 sq->bf_budget = MLX5E_SQ_BF_BUDGET;
631
632 return 0;
633
634 err_free_sq_db:
635 mlx5e_free_sq_db(sq);
636
637 err_sq_wq_destroy:
638 mlx5_wq_destroy(&sq->wq_ctrl);
639
640 err_unmap_free_uar:
641 mlx5_unmap_free_uar(mdev, &sq->uar);
642
643 return err;
644 }
645
646 static void mlx5e_destroy_sq(struct mlx5e_sq *sq)
647 {
648 struct mlx5e_channel *c = sq->channel;
649 struct mlx5e_priv *priv = c->priv;
650
651 kfree(sq->ico_wqe_info);
652 mlx5e_free_sq_db(sq);
653 mlx5_wq_destroy(&sq->wq_ctrl);
654 mlx5_unmap_free_uar(priv->mdev, &sq->uar);
655 }
656
657 static int mlx5e_enable_sq(struct mlx5e_sq *sq, struct mlx5e_sq_param *param)
658 {
659 struct mlx5e_channel *c = sq->channel;
660 struct mlx5e_priv *priv = c->priv;
661 struct mlx5_core_dev *mdev = priv->mdev;
662
663 void *in;
664 void *sqc;
665 void *wq;
666 int inlen;
667 int err;
668
669 inlen = MLX5_ST_SZ_BYTES(create_sq_in) +
670 sizeof(u64) * sq->wq_ctrl.buf.npages;
671 in = mlx5_vzalloc(inlen);
672 if (!in)
673 return -ENOMEM;
674
675 sqc = MLX5_ADDR_OF(create_sq_in, in, ctx);
676 wq = MLX5_ADDR_OF(sqc, sqc, wq);
677
678 memcpy(sqc, param->sqc, sizeof(param->sqc));
679
680 MLX5_SET(sqc, sqc, tis_num_0, param->icosq ? 0 : priv->tisn[sq->tc]);
681 MLX5_SET(sqc, sqc, cqn, sq->cq.mcq.cqn);
682 MLX5_SET(sqc, sqc, state, MLX5_SQC_STATE_RST);
683 MLX5_SET(sqc, sqc, tis_lst_sz, param->icosq ? 0 : 1);
684 MLX5_SET(sqc, sqc, flush_in_error_en, 1);
685
686 MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_CYCLIC);
687 MLX5_SET(wq, wq, uar_page, sq->uar.index);
688 MLX5_SET(wq, wq, log_wq_pg_sz, sq->wq_ctrl.buf.page_shift -
689 MLX5_ADAPTER_PAGE_SHIFT);
690 MLX5_SET64(wq, wq, dbr_addr, sq->wq_ctrl.db.dma);
691
692 mlx5_fill_page_array(&sq->wq_ctrl.buf,
693 (__be64 *)MLX5_ADDR_OF(wq, wq, pas));
694
695 err = mlx5_core_create_sq(mdev, in, inlen, &sq->sqn);
696
697 kvfree(in);
698
699 return err;
700 }
701
702 static int mlx5e_modify_sq(struct mlx5e_sq *sq, int curr_state, int next_state)
703 {
704 struct mlx5e_channel *c = sq->channel;
705 struct mlx5e_priv *priv = c->priv;
706 struct mlx5_core_dev *mdev = priv->mdev;
707
708 void *in;
709 void *sqc;
710 int inlen;
711 int err;
712
713 inlen = MLX5_ST_SZ_BYTES(modify_sq_in);
714 in = mlx5_vzalloc(inlen);
715 if (!in)
716 return -ENOMEM;
717
718 sqc = MLX5_ADDR_OF(modify_sq_in, in, ctx);
719
720 MLX5_SET(modify_sq_in, in, sq_state, curr_state);
721 MLX5_SET(sqc, sqc, state, next_state);
722
723 err = mlx5_core_modify_sq(mdev, sq->sqn, in, inlen);
724
725 kvfree(in);
726
727 return err;
728 }
729
730 static void mlx5e_disable_sq(struct mlx5e_sq *sq)
731 {
732 struct mlx5e_channel *c = sq->channel;
733 struct mlx5e_priv *priv = c->priv;
734 struct mlx5_core_dev *mdev = priv->mdev;
735
736 mlx5_core_destroy_sq(mdev, sq->sqn);
737 }
738
739 static int mlx5e_open_sq(struct mlx5e_channel *c,
740 int tc,
741 struct mlx5e_sq_param *param,
742 struct mlx5e_sq *sq)
743 {
744 int err;
745
746 err = mlx5e_create_sq(c, tc, param, sq);
747 if (err)
748 return err;
749
750 err = mlx5e_enable_sq(sq, param);
751 if (err)
752 goto err_destroy_sq;
753
754 err = mlx5e_modify_sq(sq, MLX5_SQC_STATE_RST, MLX5_SQC_STATE_RDY);
755 if (err)
756 goto err_disable_sq;
757
758 if (sq->txq) {
759 set_bit(MLX5E_SQ_STATE_WAKE_TXQ_ENABLE, &sq->state);
760 netdev_tx_reset_queue(sq->txq);
761 netif_tx_start_queue(sq->txq);
762 }
763
764 return 0;
765
766 err_disable_sq:
767 mlx5e_disable_sq(sq);
768 err_destroy_sq:
769 mlx5e_destroy_sq(sq);
770
771 return err;
772 }
773
774 static inline void netif_tx_disable_queue(struct netdev_queue *txq)
775 {
776 __netif_tx_lock_bh(txq);
777 netif_tx_stop_queue(txq);
778 __netif_tx_unlock_bh(txq);
779 }
780
781 static void mlx5e_close_sq(struct mlx5e_sq *sq)
782 {
783 if (sq->txq) {
784 clear_bit(MLX5E_SQ_STATE_WAKE_TXQ_ENABLE, &sq->state);
785 /* prevent netif_tx_wake_queue */
786 napi_synchronize(&sq->channel->napi);
787 netif_tx_disable_queue(sq->txq);
788
789 /* ensure hw is notified of all pending wqes */
790 if (mlx5e_sq_has_room_for(sq, 1))
791 mlx5e_send_nop(sq, true);
792
793 mlx5e_modify_sq(sq, MLX5_SQC_STATE_RDY, MLX5_SQC_STATE_ERR);
794 }
795
796 while (sq->cc != sq->pc) /* wait till sq is empty */
797 msleep(20);
798
799 /* avoid destroying sq before mlx5e_poll_tx_cq() is done with it */
800 napi_synchronize(&sq->channel->napi);
801
802 mlx5e_disable_sq(sq);
803 mlx5e_destroy_sq(sq);
804 }
805
806 static int mlx5e_create_cq(struct mlx5e_channel *c,
807 struct mlx5e_cq_param *param,
808 struct mlx5e_cq *cq)
809 {
810 struct mlx5e_priv *priv = c->priv;
811 struct mlx5_core_dev *mdev = priv->mdev;
812 struct mlx5_core_cq *mcq = &cq->mcq;
813 int eqn_not_used;
814 unsigned int irqn;
815 int err;
816 u32 i;
817
818 param->wq.buf_numa_node = cpu_to_node(c->cpu);
819 param->wq.db_numa_node = cpu_to_node(c->cpu);
820 param->eq_ix = c->ix;
821
822 err = mlx5_cqwq_create(mdev, &param->wq, param->cqc, &cq->wq,
823 &cq->wq_ctrl);
824 if (err)
825 return err;
826
827 mlx5_vector2eqn(mdev, param->eq_ix, &eqn_not_used, &irqn);
828
829 cq->napi = &c->napi;
830
831 mcq->cqe_sz = 64;
832 mcq->set_ci_db = cq->wq_ctrl.db.db;
833 mcq->arm_db = cq->wq_ctrl.db.db + 1;
834 *mcq->set_ci_db = 0;
835 *mcq->arm_db = 0;
836 mcq->vector = param->eq_ix;
837 mcq->comp = mlx5e_completion_event;
838 mcq->event = mlx5e_cq_error_event;
839 mcq->irqn = irqn;
840 mcq->uar = &priv->cq_uar;
841
842 for (i = 0; i < mlx5_cqwq_get_size(&cq->wq); i++) {
843 struct mlx5_cqe64 *cqe = mlx5_cqwq_get_wqe(&cq->wq, i);
844
845 cqe->op_own = 0xf1;
846 }
847
848 cq->channel = c;
849 cq->priv = priv;
850
851 return 0;
852 }
853
854 static void mlx5e_destroy_cq(struct mlx5e_cq *cq)
855 {
856 mlx5_wq_destroy(&cq->wq_ctrl);
857 }
858
859 static int mlx5e_enable_cq(struct mlx5e_cq *cq, struct mlx5e_cq_param *param)
860 {
861 struct mlx5e_priv *priv = cq->priv;
862 struct mlx5_core_dev *mdev = priv->mdev;
863 struct mlx5_core_cq *mcq = &cq->mcq;
864
865 void *in;
866 void *cqc;
867 int inlen;
868 unsigned int irqn_not_used;
869 int eqn;
870 int err;
871
872 inlen = MLX5_ST_SZ_BYTES(create_cq_in) +
873 sizeof(u64) * cq->wq_ctrl.buf.npages;
874 in = mlx5_vzalloc(inlen);
875 if (!in)
876 return -ENOMEM;
877
878 cqc = MLX5_ADDR_OF(create_cq_in, in, cq_context);
879
880 memcpy(cqc, param->cqc, sizeof(param->cqc));
881
882 mlx5_fill_page_array(&cq->wq_ctrl.buf,
883 (__be64 *)MLX5_ADDR_OF(create_cq_in, in, pas));
884
885 mlx5_vector2eqn(mdev, param->eq_ix, &eqn, &irqn_not_used);
886
887 MLX5_SET(cqc, cqc, c_eqn, eqn);
888 MLX5_SET(cqc, cqc, uar_page, mcq->uar->index);
889 MLX5_SET(cqc, cqc, log_page_size, cq->wq_ctrl.buf.page_shift -
890 MLX5_ADAPTER_PAGE_SHIFT);
891 MLX5_SET64(cqc, cqc, dbr_addr, cq->wq_ctrl.db.dma);
892
893 err = mlx5_core_create_cq(mdev, mcq, in, inlen);
894
895 kvfree(in);
896
897 if (err)
898 return err;
899
900 mlx5e_cq_arm(cq);
901
902 return 0;
903 }
904
905 static void mlx5e_disable_cq(struct mlx5e_cq *cq)
906 {
907 struct mlx5e_priv *priv = cq->priv;
908 struct mlx5_core_dev *mdev = priv->mdev;
909
910 mlx5_core_destroy_cq(mdev, &cq->mcq);
911 }
912
913 static int mlx5e_open_cq(struct mlx5e_channel *c,
914 struct mlx5e_cq_param *param,
915 struct mlx5e_cq *cq,
916 u16 moderation_usecs,
917 u16 moderation_frames)
918 {
919 int err;
920 struct mlx5e_priv *priv = c->priv;
921 struct mlx5_core_dev *mdev = priv->mdev;
922
923 err = mlx5e_create_cq(c, param, cq);
924 if (err)
925 return err;
926
927 err = mlx5e_enable_cq(cq, param);
928 if (err)
929 goto err_destroy_cq;
930
931 if (MLX5_CAP_GEN(mdev, cq_moderation))
932 mlx5_core_modify_cq_moderation(mdev, &cq->mcq,
933 moderation_usecs,
934 moderation_frames);
935 return 0;
936
937 err_destroy_cq:
938 mlx5e_destroy_cq(cq);
939
940 return err;
941 }
942
943 static void mlx5e_close_cq(struct mlx5e_cq *cq)
944 {
945 mlx5e_disable_cq(cq);
946 mlx5e_destroy_cq(cq);
947 }
948
949 static int mlx5e_get_cpu(struct mlx5e_priv *priv, int ix)
950 {
951 return cpumask_first(priv->mdev->priv.irq_info[ix].mask);
952 }
953
954 static int mlx5e_open_tx_cqs(struct mlx5e_channel *c,
955 struct mlx5e_channel_param *cparam)
956 {
957 struct mlx5e_priv *priv = c->priv;
958 int err;
959 int tc;
960
961 for (tc = 0; tc < c->num_tc; tc++) {
962 err = mlx5e_open_cq(c, &cparam->tx_cq, &c->sq[tc].cq,
963 priv->params.tx_cq_moderation_usec,
964 priv->params.tx_cq_moderation_pkts);
965 if (err)
966 goto err_close_tx_cqs;
967 }
968
969 return 0;
970
971 err_close_tx_cqs:
972 for (tc--; tc >= 0; tc--)
973 mlx5e_close_cq(&c->sq[tc].cq);
974
975 return err;
976 }
977
978 static void mlx5e_close_tx_cqs(struct mlx5e_channel *c)
979 {
980 int tc;
981
982 for (tc = 0; tc < c->num_tc; tc++)
983 mlx5e_close_cq(&c->sq[tc].cq);
984 }
985
986 static int mlx5e_open_sqs(struct mlx5e_channel *c,
987 struct mlx5e_channel_param *cparam)
988 {
989 int err;
990 int tc;
991
992 for (tc = 0; tc < c->num_tc; tc++) {
993 err = mlx5e_open_sq(c, tc, &cparam->sq, &c->sq[tc]);
994 if (err)
995 goto err_close_sqs;
996 }
997
998 return 0;
999
1000 err_close_sqs:
1001 for (tc--; tc >= 0; tc--)
1002 mlx5e_close_sq(&c->sq[tc]);
1003
1004 return err;
1005 }
1006
1007 static void mlx5e_close_sqs(struct mlx5e_channel *c)
1008 {
1009 int tc;
1010
1011 for (tc = 0; tc < c->num_tc; tc++)
1012 mlx5e_close_sq(&c->sq[tc]);
1013 }
1014
1015 static void mlx5e_build_channeltc_to_txq_map(struct mlx5e_priv *priv, int ix)
1016 {
1017 int i;
1018
1019 for (i = 0; i < MLX5E_MAX_NUM_TC; i++)
1020 priv->channeltc_to_txq_map[ix][i] =
1021 ix + i * priv->params.num_channels;
1022 }
1023
1024 static int mlx5e_open_channel(struct mlx5e_priv *priv, int ix,
1025 struct mlx5e_channel_param *cparam,
1026 struct mlx5e_channel **cp)
1027 {
1028 struct net_device *netdev = priv->netdev;
1029 int cpu = mlx5e_get_cpu(priv, ix);
1030 struct mlx5e_channel *c;
1031 int err;
1032
1033 c = kzalloc_node(sizeof(*c), GFP_KERNEL, cpu_to_node(cpu));
1034 if (!c)
1035 return -ENOMEM;
1036
1037 c->priv = priv;
1038 c->ix = ix;
1039 c->cpu = cpu;
1040 c->pdev = &priv->mdev->pdev->dev;
1041 c->netdev = priv->netdev;
1042 c->mkey_be = cpu_to_be32(priv->mkey.key);
1043 c->num_tc = priv->params.num_tc;
1044
1045 mlx5e_build_channeltc_to_txq_map(priv, ix);
1046
1047 netif_napi_add(netdev, &c->napi, mlx5e_napi_poll, 64);
1048
1049 err = mlx5e_open_cq(c, &cparam->icosq_cq, &c->icosq.cq, 0, 0);
1050 if (err)
1051 goto err_napi_del;
1052
1053 err = mlx5e_open_tx_cqs(c, cparam);
1054 if (err)
1055 goto err_close_icosq_cq;
1056
1057 err = mlx5e_open_cq(c, &cparam->rx_cq, &c->rq.cq,
1058 priv->params.rx_cq_moderation_usec,
1059 priv->params.rx_cq_moderation_pkts);
1060 if (err)
1061 goto err_close_tx_cqs;
1062
1063 napi_enable(&c->napi);
1064
1065 err = mlx5e_open_sq(c, 0, &cparam->icosq, &c->icosq);
1066 if (err)
1067 goto err_disable_napi;
1068
1069 err = mlx5e_open_sqs(c, cparam);
1070 if (err)
1071 goto err_close_icosq;
1072
1073 err = mlx5e_open_rq(c, &cparam->rq, &c->rq);
1074 if (err)
1075 goto err_close_sqs;
1076
1077 netif_set_xps_queue(netdev, get_cpu_mask(c->cpu), ix);
1078 *cp = c;
1079
1080 return 0;
1081
1082 err_close_sqs:
1083 mlx5e_close_sqs(c);
1084
1085 err_close_icosq:
1086 mlx5e_close_sq(&c->icosq);
1087
1088 err_disable_napi:
1089 napi_disable(&c->napi);
1090 mlx5e_close_cq(&c->rq.cq);
1091
1092 err_close_tx_cqs:
1093 mlx5e_close_tx_cqs(c);
1094
1095 err_close_icosq_cq:
1096 mlx5e_close_cq(&c->icosq.cq);
1097
1098 err_napi_del:
1099 netif_napi_del(&c->napi);
1100 napi_hash_del(&c->napi);
1101 kfree(c);
1102
1103 return err;
1104 }
1105
1106 static void mlx5e_close_channel(struct mlx5e_channel *c)
1107 {
1108 mlx5e_close_rq(&c->rq);
1109 mlx5e_close_sqs(c);
1110 mlx5e_close_sq(&c->icosq);
1111 napi_disable(&c->napi);
1112 mlx5e_close_cq(&c->rq.cq);
1113 mlx5e_close_tx_cqs(c);
1114 mlx5e_close_cq(&c->icosq.cq);
1115 netif_napi_del(&c->napi);
1116
1117 napi_hash_del(&c->napi);
1118 synchronize_rcu();
1119
1120 kfree(c);
1121 }
1122
1123 static void mlx5e_build_rq_param(struct mlx5e_priv *priv,
1124 struct mlx5e_rq_param *param)
1125 {
1126 void *rqc = param->rqc;
1127 void *wq = MLX5_ADDR_OF(rqc, rqc, wq);
1128
1129 switch (priv->params.rq_wq_type) {
1130 case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ:
1131 MLX5_SET(wq, wq, log_wqe_num_of_strides,
1132 MLX5_MPWRQ_LOG_NUM_STRIDES - 9);
1133 MLX5_SET(wq, wq, log_wqe_stride_size,
1134 MLX5_MPWRQ_LOG_STRIDE_SIZE - 6);
1135 MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ);
1136 break;
1137 default: /* MLX5_WQ_TYPE_LINKED_LIST */
1138 MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_LINKED_LIST);
1139 }
1140
1141 MLX5_SET(wq, wq, end_padding_mode, MLX5_WQ_END_PAD_MODE_ALIGN);
1142 MLX5_SET(wq, wq, log_wq_stride, ilog2(sizeof(struct mlx5e_rx_wqe)));
1143 MLX5_SET(wq, wq, log_wq_sz, priv->params.log_rq_size);
1144 MLX5_SET(wq, wq, pd, priv->pdn);
1145 MLX5_SET(rqc, rqc, counter_set_id, priv->q_counter);
1146
1147 param->wq.buf_numa_node = dev_to_node(&priv->mdev->pdev->dev);
1148 param->wq.linear = 1;
1149 }
1150
1151 static void mlx5e_build_drop_rq_param(struct mlx5e_rq_param *param)
1152 {
1153 void *rqc = param->rqc;
1154 void *wq = MLX5_ADDR_OF(rqc, rqc, wq);
1155
1156 MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_LINKED_LIST);
1157 MLX5_SET(wq, wq, log_wq_stride, ilog2(sizeof(struct mlx5e_rx_wqe)));
1158 }
1159
1160 static void mlx5e_build_sq_param_common(struct mlx5e_priv *priv,
1161 struct mlx5e_sq_param *param)
1162 {
1163 void *sqc = param->sqc;
1164 void *wq = MLX5_ADDR_OF(sqc, sqc, wq);
1165
1166 MLX5_SET(wq, wq, log_wq_stride, ilog2(MLX5_SEND_WQE_BB));
1167 MLX5_SET(wq, wq, pd, priv->pdn);
1168
1169 param->wq.buf_numa_node = dev_to_node(&priv->mdev->pdev->dev);
1170 }
1171
1172 static void mlx5e_build_sq_param(struct mlx5e_priv *priv,
1173 struct mlx5e_sq_param *param)
1174 {
1175 void *sqc = param->sqc;
1176 void *wq = MLX5_ADDR_OF(sqc, sqc, wq);
1177
1178 mlx5e_build_sq_param_common(priv, param);
1179 MLX5_SET(wq, wq, log_wq_sz, priv->params.log_sq_size);
1180
1181 param->max_inline = priv->params.tx_max_inline;
1182 }
1183
1184 static void mlx5e_build_common_cq_param(struct mlx5e_priv *priv,
1185 struct mlx5e_cq_param *param)
1186 {
1187 void *cqc = param->cqc;
1188
1189 MLX5_SET(cqc, cqc, uar_page, priv->cq_uar.index);
1190 }
1191
1192 static void mlx5e_build_rx_cq_param(struct mlx5e_priv *priv,
1193 struct mlx5e_cq_param *param)
1194 {
1195 void *cqc = param->cqc;
1196 u8 log_cq_size;
1197
1198 switch (priv->params.rq_wq_type) {
1199 case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ:
1200 log_cq_size = priv->params.log_rq_size +
1201 MLX5_MPWRQ_LOG_NUM_STRIDES;
1202 break;
1203 default: /* MLX5_WQ_TYPE_LINKED_LIST */
1204 log_cq_size = priv->params.log_rq_size;
1205 }
1206
1207 MLX5_SET(cqc, cqc, log_cq_size, log_cq_size);
1208
1209 mlx5e_build_common_cq_param(priv, param);
1210 }
1211
1212 static void mlx5e_build_tx_cq_param(struct mlx5e_priv *priv,
1213 struct mlx5e_cq_param *param)
1214 {
1215 void *cqc = param->cqc;
1216
1217 MLX5_SET(cqc, cqc, log_cq_size, priv->params.log_sq_size);
1218
1219 mlx5e_build_common_cq_param(priv, param);
1220 }
1221
1222 static void mlx5e_build_ico_cq_param(struct mlx5e_priv *priv,
1223 struct mlx5e_cq_param *param,
1224 u8 log_wq_size)
1225 {
1226 void *cqc = param->cqc;
1227
1228 MLX5_SET(cqc, cqc, log_cq_size, log_wq_size);
1229
1230 mlx5e_build_common_cq_param(priv, param);
1231 }
1232
1233 static void mlx5e_build_icosq_param(struct mlx5e_priv *priv,
1234 struct mlx5e_sq_param *param,
1235 u8 log_wq_size)
1236 {
1237 void *sqc = param->sqc;
1238 void *wq = MLX5_ADDR_OF(sqc, sqc, wq);
1239
1240 mlx5e_build_sq_param_common(priv, param);
1241
1242 MLX5_SET(wq, wq, log_wq_sz, log_wq_size);
1243 MLX5_SET(sqc, sqc, reg_umr, MLX5_CAP_ETH(priv->mdev, reg_umr_sq));
1244
1245 param->icosq = true;
1246 }
1247
1248 static void mlx5e_build_channel_param(struct mlx5e_priv *priv,
1249 struct mlx5e_channel_param *cparam)
1250 {
1251 u8 icosq_log_wq_sz = MLX5E_PARAMS_MINIMUM_LOG_SQ_SIZE;
1252
1253 memset(cparam, 0, sizeof(*cparam));
1254
1255 mlx5e_build_rq_param(priv, &cparam->rq);
1256 mlx5e_build_sq_param(priv, &cparam->sq);
1257 mlx5e_build_icosq_param(priv, &cparam->icosq, icosq_log_wq_sz);
1258 mlx5e_build_rx_cq_param(priv, &cparam->rx_cq);
1259 mlx5e_build_tx_cq_param(priv, &cparam->tx_cq);
1260 mlx5e_build_ico_cq_param(priv, &cparam->icosq_cq, icosq_log_wq_sz);
1261 }
1262
1263 static int mlx5e_open_channels(struct mlx5e_priv *priv)
1264 {
1265 struct mlx5e_channel_param cparam;
1266 int nch = priv->params.num_channels;
1267 int err = -ENOMEM;
1268 int i;
1269 int j;
1270
1271 priv->channel = kcalloc(nch, sizeof(struct mlx5e_channel *),
1272 GFP_KERNEL);
1273
1274 priv->txq_to_sq_map = kcalloc(nch * priv->params.num_tc,
1275 sizeof(struct mlx5e_sq *), GFP_KERNEL);
1276
1277 if (!priv->channel || !priv->txq_to_sq_map)
1278 goto err_free_txq_to_sq_map;
1279
1280 mlx5e_build_channel_param(priv, &cparam);
1281 for (i = 0; i < nch; i++) {
1282 err = mlx5e_open_channel(priv, i, &cparam, &priv->channel[i]);
1283 if (err)
1284 goto err_close_channels;
1285 }
1286
1287 for (j = 0; j < nch; j++) {
1288 err = mlx5e_wait_for_min_rx_wqes(&priv->channel[j]->rq);
1289 if (err)
1290 goto err_close_channels;
1291 }
1292
1293 return 0;
1294
1295 err_close_channels:
1296 for (i--; i >= 0; i--)
1297 mlx5e_close_channel(priv->channel[i]);
1298
1299 err_free_txq_to_sq_map:
1300 kfree(priv->txq_to_sq_map);
1301 kfree(priv->channel);
1302
1303 return err;
1304 }
1305
1306 static void mlx5e_close_channels(struct mlx5e_priv *priv)
1307 {
1308 int i;
1309
1310 for (i = 0; i < priv->params.num_channels; i++)
1311 mlx5e_close_channel(priv->channel[i]);
1312
1313 kfree(priv->txq_to_sq_map);
1314 kfree(priv->channel);
1315 }
1316
1317 static int mlx5e_rx_hash_fn(int hfunc)
1318 {
1319 return (hfunc == ETH_RSS_HASH_TOP) ?
1320 MLX5_RX_HASH_FN_TOEPLITZ :
1321 MLX5_RX_HASH_FN_INVERTED_XOR8;
1322 }
1323
1324 static int mlx5e_bits_invert(unsigned long a, int size)
1325 {
1326 int inv = 0;
1327 int i;
1328
1329 for (i = 0; i < size; i++)
1330 inv |= (test_bit(size - i - 1, &a) ? 1 : 0) << i;
1331
1332 return inv;
1333 }
1334
1335 static void mlx5e_fill_indir_rqt_rqns(struct mlx5e_priv *priv, void *rqtc)
1336 {
1337 int i;
1338
1339 for (i = 0; i < MLX5E_INDIR_RQT_SIZE; i++) {
1340 int ix = i;
1341
1342 if (priv->params.rss_hfunc == ETH_RSS_HASH_XOR)
1343 ix = mlx5e_bits_invert(i, MLX5E_LOG_INDIR_RQT_SIZE);
1344
1345 ix = priv->params.indirection_rqt[ix];
1346 MLX5_SET(rqtc, rqtc, rq_num[i],
1347 test_bit(MLX5E_STATE_OPENED, &priv->state) ?
1348 priv->channel[ix]->rq.rqn :
1349 priv->drop_rq.rqn);
1350 }
1351 }
1352
1353 static void mlx5e_fill_rqt_rqns(struct mlx5e_priv *priv, void *rqtc,
1354 enum mlx5e_rqt_ix rqt_ix)
1355 {
1356
1357 switch (rqt_ix) {
1358 case MLX5E_INDIRECTION_RQT:
1359 mlx5e_fill_indir_rqt_rqns(priv, rqtc);
1360
1361 break;
1362
1363 default: /* MLX5E_SINGLE_RQ_RQT */
1364 MLX5_SET(rqtc, rqtc, rq_num[0],
1365 test_bit(MLX5E_STATE_OPENED, &priv->state) ?
1366 priv->channel[0]->rq.rqn :
1367 priv->drop_rq.rqn);
1368
1369 break;
1370 }
1371 }
1372
1373 static int mlx5e_create_rqt(struct mlx5e_priv *priv, enum mlx5e_rqt_ix rqt_ix)
1374 {
1375 struct mlx5_core_dev *mdev = priv->mdev;
1376 u32 *in;
1377 void *rqtc;
1378 int inlen;
1379 int sz;
1380 int err;
1381
1382 sz = (rqt_ix == MLX5E_SINGLE_RQ_RQT) ? 1 : MLX5E_INDIR_RQT_SIZE;
1383
1384 inlen = MLX5_ST_SZ_BYTES(create_rqt_in) + sizeof(u32) * sz;
1385 in = mlx5_vzalloc(inlen);
1386 if (!in)
1387 return -ENOMEM;
1388
1389 rqtc = MLX5_ADDR_OF(create_rqt_in, in, rqt_context);
1390
1391 MLX5_SET(rqtc, rqtc, rqt_actual_size, sz);
1392 MLX5_SET(rqtc, rqtc, rqt_max_size, sz);
1393
1394 mlx5e_fill_rqt_rqns(priv, rqtc, rqt_ix);
1395
1396 err = mlx5_core_create_rqt(mdev, in, inlen, &priv->rqtn[rqt_ix]);
1397
1398 kvfree(in);
1399
1400 return err;
1401 }
1402
1403 int mlx5e_redirect_rqt(struct mlx5e_priv *priv, enum mlx5e_rqt_ix rqt_ix)
1404 {
1405 struct mlx5_core_dev *mdev = priv->mdev;
1406 u32 *in;
1407 void *rqtc;
1408 int inlen;
1409 int sz;
1410 int err;
1411
1412 sz = (rqt_ix == MLX5E_SINGLE_RQ_RQT) ? 1 : MLX5E_INDIR_RQT_SIZE;
1413
1414 inlen = MLX5_ST_SZ_BYTES(modify_rqt_in) + sizeof(u32) * sz;
1415 in = mlx5_vzalloc(inlen);
1416 if (!in)
1417 return -ENOMEM;
1418
1419 rqtc = MLX5_ADDR_OF(modify_rqt_in, in, ctx);
1420
1421 MLX5_SET(rqtc, rqtc, rqt_actual_size, sz);
1422
1423 mlx5e_fill_rqt_rqns(priv, rqtc, rqt_ix);
1424
1425 MLX5_SET(modify_rqt_in, in, bitmask.rqn_list, 1);
1426
1427 err = mlx5_core_modify_rqt(mdev, priv->rqtn[rqt_ix], in, inlen);
1428
1429 kvfree(in);
1430
1431 return err;
1432 }
1433
1434 static void mlx5e_destroy_rqt(struct mlx5e_priv *priv, enum mlx5e_rqt_ix rqt_ix)
1435 {
1436 mlx5_core_destroy_rqt(priv->mdev, priv->rqtn[rqt_ix]);
1437 }
1438
1439 static void mlx5e_redirect_rqts(struct mlx5e_priv *priv)
1440 {
1441 mlx5e_redirect_rqt(priv, MLX5E_INDIRECTION_RQT);
1442 mlx5e_redirect_rqt(priv, MLX5E_SINGLE_RQ_RQT);
1443 }
1444
1445 static void mlx5e_build_tir_ctx_lro(void *tirc, struct mlx5e_priv *priv)
1446 {
1447 if (!priv->params.lro_en)
1448 return;
1449
1450 #define ROUGH_MAX_L2_L3_HDR_SZ 256
1451
1452 MLX5_SET(tirc, tirc, lro_enable_mask,
1453 MLX5_TIRC_LRO_ENABLE_MASK_IPV4_LRO |
1454 MLX5_TIRC_LRO_ENABLE_MASK_IPV6_LRO);
1455 MLX5_SET(tirc, tirc, lro_max_ip_payload_size,
1456 (priv->params.lro_wqe_sz -
1457 ROUGH_MAX_L2_L3_HDR_SZ) >> 8);
1458 MLX5_SET(tirc, tirc, lro_timeout_period_usecs,
1459 MLX5_CAP_ETH(priv->mdev,
1460 lro_timer_supported_periods[2]));
1461 }
1462
1463 void mlx5e_build_tir_ctx_hash(void *tirc, struct mlx5e_priv *priv)
1464 {
1465 MLX5_SET(tirc, tirc, rx_hash_fn,
1466 mlx5e_rx_hash_fn(priv->params.rss_hfunc));
1467 if (priv->params.rss_hfunc == ETH_RSS_HASH_TOP) {
1468 void *rss_key = MLX5_ADDR_OF(tirc, tirc,
1469 rx_hash_toeplitz_key);
1470 size_t len = MLX5_FLD_SZ_BYTES(tirc,
1471 rx_hash_toeplitz_key);
1472
1473 MLX5_SET(tirc, tirc, rx_hash_symmetric, 1);
1474 memcpy(rss_key, priv->params.toeplitz_hash_key, len);
1475 }
1476 }
1477
1478 static int mlx5e_modify_tirs_lro(struct mlx5e_priv *priv)
1479 {
1480 struct mlx5_core_dev *mdev = priv->mdev;
1481
1482 void *in;
1483 void *tirc;
1484 int inlen;
1485 int err;
1486 int tt;
1487
1488 inlen = MLX5_ST_SZ_BYTES(modify_tir_in);
1489 in = mlx5_vzalloc(inlen);
1490 if (!in)
1491 return -ENOMEM;
1492
1493 MLX5_SET(modify_tir_in, in, bitmask.lro, 1);
1494 tirc = MLX5_ADDR_OF(modify_tir_in, in, ctx);
1495
1496 mlx5e_build_tir_ctx_lro(tirc, priv);
1497
1498 for (tt = 0; tt < MLX5E_NUM_TT; tt++) {
1499 err = mlx5_core_modify_tir(mdev, priv->tirn[tt], in, inlen);
1500 if (err)
1501 break;
1502 }
1503
1504 kvfree(in);
1505
1506 return err;
1507 }
1508
1509 static int mlx5e_refresh_tir_self_loopback_enable(struct mlx5_core_dev *mdev,
1510 u32 tirn)
1511 {
1512 void *in;
1513 int inlen;
1514 int err;
1515
1516 inlen = MLX5_ST_SZ_BYTES(modify_tir_in);
1517 in = mlx5_vzalloc(inlen);
1518 if (!in)
1519 return -ENOMEM;
1520
1521 MLX5_SET(modify_tir_in, in, bitmask.self_lb_en, 1);
1522
1523 err = mlx5_core_modify_tir(mdev, tirn, in, inlen);
1524
1525 kvfree(in);
1526
1527 return err;
1528 }
1529
1530 static int mlx5e_refresh_tirs_self_loopback_enable(struct mlx5e_priv *priv)
1531 {
1532 int err;
1533 int i;
1534
1535 for (i = 0; i < MLX5E_NUM_TT; i++) {
1536 err = mlx5e_refresh_tir_self_loopback_enable(priv->mdev,
1537 priv->tirn[i]);
1538 if (err)
1539 return err;
1540 }
1541
1542 return 0;
1543 }
1544
1545 static int mlx5e_set_dev_port_mtu(struct net_device *netdev)
1546 {
1547 struct mlx5e_priv *priv = netdev_priv(netdev);
1548 struct mlx5_core_dev *mdev = priv->mdev;
1549 int hw_mtu;
1550 int err;
1551
1552 err = mlx5_set_port_mtu(mdev, MLX5E_SW2HW_MTU(netdev->mtu), 1);
1553 if (err)
1554 return err;
1555
1556 mlx5_query_port_oper_mtu(mdev, &hw_mtu, 1);
1557
1558 if (MLX5E_HW2SW_MTU(hw_mtu) != netdev->mtu)
1559 netdev_warn(netdev, "%s: Port MTU %d is different than netdev mtu %d\n",
1560 __func__, MLX5E_HW2SW_MTU(hw_mtu), netdev->mtu);
1561
1562 netdev->mtu = MLX5E_HW2SW_MTU(hw_mtu);
1563 return 0;
1564 }
1565
1566 static void mlx5e_netdev_set_tcs(struct net_device *netdev)
1567 {
1568 struct mlx5e_priv *priv = netdev_priv(netdev);
1569 int nch = priv->params.num_channels;
1570 int ntc = priv->params.num_tc;
1571 int tc;
1572
1573 netdev_reset_tc(netdev);
1574
1575 if (ntc == 1)
1576 return;
1577
1578 netdev_set_num_tc(netdev, ntc);
1579
1580 for (tc = 0; tc < ntc; tc++)
1581 netdev_set_tc_queue(netdev, tc, nch, tc * nch);
1582 }
1583
1584 int mlx5e_open_locked(struct net_device *netdev)
1585 {
1586 struct mlx5e_priv *priv = netdev_priv(netdev);
1587 int num_txqs;
1588 int err;
1589
1590 set_bit(MLX5E_STATE_OPENED, &priv->state);
1591
1592 mlx5e_netdev_set_tcs(netdev);
1593
1594 num_txqs = priv->params.num_channels * priv->params.num_tc;
1595 netif_set_real_num_tx_queues(netdev, num_txqs);
1596 netif_set_real_num_rx_queues(netdev, priv->params.num_channels);
1597
1598 err = mlx5e_set_dev_port_mtu(netdev);
1599 if (err)
1600 goto err_clear_state_opened_flag;
1601
1602 err = mlx5e_open_channels(priv);
1603 if (err) {
1604 netdev_err(netdev, "%s: mlx5e_open_channels failed, %d\n",
1605 __func__, err);
1606 goto err_clear_state_opened_flag;
1607 }
1608
1609 err = mlx5e_refresh_tirs_self_loopback_enable(priv);
1610 if (err) {
1611 netdev_err(netdev, "%s: mlx5e_refresh_tirs_self_loopback_enable failed, %d\n",
1612 __func__, err);
1613 goto err_close_channels;
1614 }
1615
1616 mlx5e_redirect_rqts(priv);
1617 mlx5e_update_carrier(priv);
1618 mlx5e_timestamp_init(priv);
1619
1620 schedule_delayed_work(&priv->update_stats_work, 0);
1621
1622 return 0;
1623
1624 err_close_channels:
1625 mlx5e_close_channels(priv);
1626 err_clear_state_opened_flag:
1627 clear_bit(MLX5E_STATE_OPENED, &priv->state);
1628 return err;
1629 }
1630
1631 static int mlx5e_open(struct net_device *netdev)
1632 {
1633 struct mlx5e_priv *priv = netdev_priv(netdev);
1634 int err;
1635
1636 mutex_lock(&priv->state_lock);
1637 err = mlx5e_open_locked(netdev);
1638 mutex_unlock(&priv->state_lock);
1639
1640 return err;
1641 }
1642
1643 int mlx5e_close_locked(struct net_device *netdev)
1644 {
1645 struct mlx5e_priv *priv = netdev_priv(netdev);
1646
1647 /* May already be CLOSED in case a previous configuration operation
1648 * (e.g RX/TX queue size change) that involves close&open failed.
1649 */
1650 if (!test_bit(MLX5E_STATE_OPENED, &priv->state))
1651 return 0;
1652
1653 clear_bit(MLX5E_STATE_OPENED, &priv->state);
1654
1655 mlx5e_timestamp_cleanup(priv);
1656 netif_carrier_off(priv->netdev);
1657 mlx5e_redirect_rqts(priv);
1658 mlx5e_close_channels(priv);
1659
1660 return 0;
1661 }
1662
1663 static int mlx5e_close(struct net_device *netdev)
1664 {
1665 struct mlx5e_priv *priv = netdev_priv(netdev);
1666 int err;
1667
1668 mutex_lock(&priv->state_lock);
1669 err = mlx5e_close_locked(netdev);
1670 mutex_unlock(&priv->state_lock);
1671
1672 return err;
1673 }
1674
1675 static int mlx5e_create_drop_rq(struct mlx5e_priv *priv,
1676 struct mlx5e_rq *rq,
1677 struct mlx5e_rq_param *param)
1678 {
1679 struct mlx5_core_dev *mdev = priv->mdev;
1680 void *rqc = param->rqc;
1681 void *rqc_wq = MLX5_ADDR_OF(rqc, rqc, wq);
1682 int err;
1683
1684 param->wq.db_numa_node = param->wq.buf_numa_node;
1685
1686 err = mlx5_wq_ll_create(mdev, &param->wq, rqc_wq, &rq->wq,
1687 &rq->wq_ctrl);
1688 if (err)
1689 return err;
1690
1691 rq->priv = priv;
1692
1693 return 0;
1694 }
1695
1696 static int mlx5e_create_drop_cq(struct mlx5e_priv *priv,
1697 struct mlx5e_cq *cq,
1698 struct mlx5e_cq_param *param)
1699 {
1700 struct mlx5_core_dev *mdev = priv->mdev;
1701 struct mlx5_core_cq *mcq = &cq->mcq;
1702 int eqn_not_used;
1703 unsigned int irqn;
1704 int err;
1705
1706 err = mlx5_cqwq_create(mdev, &param->wq, param->cqc, &cq->wq,
1707 &cq->wq_ctrl);
1708 if (err)
1709 return err;
1710
1711 mlx5_vector2eqn(mdev, param->eq_ix, &eqn_not_used, &irqn);
1712
1713 mcq->cqe_sz = 64;
1714 mcq->set_ci_db = cq->wq_ctrl.db.db;
1715 mcq->arm_db = cq->wq_ctrl.db.db + 1;
1716 *mcq->set_ci_db = 0;
1717 *mcq->arm_db = 0;
1718 mcq->vector = param->eq_ix;
1719 mcq->comp = mlx5e_completion_event;
1720 mcq->event = mlx5e_cq_error_event;
1721 mcq->irqn = irqn;
1722 mcq->uar = &priv->cq_uar;
1723
1724 cq->priv = priv;
1725
1726 return 0;
1727 }
1728
1729 static int mlx5e_open_drop_rq(struct mlx5e_priv *priv)
1730 {
1731 struct mlx5e_cq_param cq_param;
1732 struct mlx5e_rq_param rq_param;
1733 struct mlx5e_rq *rq = &priv->drop_rq;
1734 struct mlx5e_cq *cq = &priv->drop_rq.cq;
1735 int err;
1736
1737 memset(&cq_param, 0, sizeof(cq_param));
1738 memset(&rq_param, 0, sizeof(rq_param));
1739 mlx5e_build_drop_rq_param(&rq_param);
1740
1741 err = mlx5e_create_drop_cq(priv, cq, &cq_param);
1742 if (err)
1743 return err;
1744
1745 err = mlx5e_enable_cq(cq, &cq_param);
1746 if (err)
1747 goto err_destroy_cq;
1748
1749 err = mlx5e_create_drop_rq(priv, rq, &rq_param);
1750 if (err)
1751 goto err_disable_cq;
1752
1753 err = mlx5e_enable_rq(rq, &rq_param);
1754 if (err)
1755 goto err_destroy_rq;
1756
1757 return 0;
1758
1759 err_destroy_rq:
1760 mlx5e_destroy_rq(&priv->drop_rq);
1761
1762 err_disable_cq:
1763 mlx5e_disable_cq(&priv->drop_rq.cq);
1764
1765 err_destroy_cq:
1766 mlx5e_destroy_cq(&priv->drop_rq.cq);
1767
1768 return err;
1769 }
1770
1771 static void mlx5e_close_drop_rq(struct mlx5e_priv *priv)
1772 {
1773 mlx5e_disable_rq(&priv->drop_rq);
1774 mlx5e_destroy_rq(&priv->drop_rq);
1775 mlx5e_disable_cq(&priv->drop_rq.cq);
1776 mlx5e_destroy_cq(&priv->drop_rq.cq);
1777 }
1778
1779 static int mlx5e_create_tis(struct mlx5e_priv *priv, int tc)
1780 {
1781 struct mlx5_core_dev *mdev = priv->mdev;
1782 u32 in[MLX5_ST_SZ_DW(create_tis_in)];
1783 void *tisc = MLX5_ADDR_OF(create_tis_in, in, ctx);
1784
1785 memset(in, 0, sizeof(in));
1786
1787 MLX5_SET(tisc, tisc, prio, tc << 1);
1788 MLX5_SET(tisc, tisc, transport_domain, priv->tdn);
1789
1790 return mlx5_core_create_tis(mdev, in, sizeof(in), &priv->tisn[tc]);
1791 }
1792
1793 static void mlx5e_destroy_tis(struct mlx5e_priv *priv, int tc)
1794 {
1795 mlx5_core_destroy_tis(priv->mdev, priv->tisn[tc]);
1796 }
1797
1798 static int mlx5e_create_tises(struct mlx5e_priv *priv)
1799 {
1800 int err;
1801 int tc;
1802
1803 for (tc = 0; tc < MLX5E_MAX_NUM_TC; tc++) {
1804 err = mlx5e_create_tis(priv, tc);
1805 if (err)
1806 goto err_close_tises;
1807 }
1808
1809 return 0;
1810
1811 err_close_tises:
1812 for (tc--; tc >= 0; tc--)
1813 mlx5e_destroy_tis(priv, tc);
1814
1815 return err;
1816 }
1817
1818 static void mlx5e_destroy_tises(struct mlx5e_priv *priv)
1819 {
1820 int tc;
1821
1822 for (tc = 0; tc < MLX5E_MAX_NUM_TC; tc++)
1823 mlx5e_destroy_tis(priv, tc);
1824 }
1825
1826 static void mlx5e_build_tir_ctx(struct mlx5e_priv *priv, u32 *tirc, int tt)
1827 {
1828 void *hfso = MLX5_ADDR_OF(tirc, tirc, rx_hash_field_selector_outer);
1829
1830 MLX5_SET(tirc, tirc, transport_domain, priv->tdn);
1831
1832 #define MLX5_HASH_IP (MLX5_HASH_FIELD_SEL_SRC_IP |\
1833 MLX5_HASH_FIELD_SEL_DST_IP)
1834
1835 #define MLX5_HASH_IP_L4PORTS (MLX5_HASH_FIELD_SEL_SRC_IP |\
1836 MLX5_HASH_FIELD_SEL_DST_IP |\
1837 MLX5_HASH_FIELD_SEL_L4_SPORT |\
1838 MLX5_HASH_FIELD_SEL_L4_DPORT)
1839
1840 #define MLX5_HASH_IP_IPSEC_SPI (MLX5_HASH_FIELD_SEL_SRC_IP |\
1841 MLX5_HASH_FIELD_SEL_DST_IP |\
1842 MLX5_HASH_FIELD_SEL_IPSEC_SPI)
1843
1844 mlx5e_build_tir_ctx_lro(tirc, priv);
1845
1846 MLX5_SET(tirc, tirc, disp_type, MLX5_TIRC_DISP_TYPE_INDIRECT);
1847
1848 switch (tt) {
1849 case MLX5E_TT_ANY:
1850 MLX5_SET(tirc, tirc, indirect_table,
1851 priv->rqtn[MLX5E_SINGLE_RQ_RQT]);
1852 MLX5_SET(tirc, tirc, rx_hash_fn, MLX5_RX_HASH_FN_INVERTED_XOR8);
1853 break;
1854 default:
1855 MLX5_SET(tirc, tirc, indirect_table,
1856 priv->rqtn[MLX5E_INDIRECTION_RQT]);
1857 mlx5e_build_tir_ctx_hash(tirc, priv);
1858 break;
1859 }
1860
1861 switch (tt) {
1862 case MLX5E_TT_IPV4_TCP:
1863 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
1864 MLX5_L3_PROT_TYPE_IPV4);
1865 MLX5_SET(rx_hash_field_select, hfso, l4_prot_type,
1866 MLX5_L4_PROT_TYPE_TCP);
1867 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
1868 MLX5_HASH_IP_L4PORTS);
1869 break;
1870
1871 case MLX5E_TT_IPV6_TCP:
1872 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
1873 MLX5_L3_PROT_TYPE_IPV6);
1874 MLX5_SET(rx_hash_field_select, hfso, l4_prot_type,
1875 MLX5_L4_PROT_TYPE_TCP);
1876 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
1877 MLX5_HASH_IP_L4PORTS);
1878 break;
1879
1880 case MLX5E_TT_IPV4_UDP:
1881 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
1882 MLX5_L3_PROT_TYPE_IPV4);
1883 MLX5_SET(rx_hash_field_select, hfso, l4_prot_type,
1884 MLX5_L4_PROT_TYPE_UDP);
1885 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
1886 MLX5_HASH_IP_L4PORTS);
1887 break;
1888
1889 case MLX5E_TT_IPV6_UDP:
1890 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
1891 MLX5_L3_PROT_TYPE_IPV6);
1892 MLX5_SET(rx_hash_field_select, hfso, l4_prot_type,
1893 MLX5_L4_PROT_TYPE_UDP);
1894 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
1895 MLX5_HASH_IP_L4PORTS);
1896 break;
1897
1898 case MLX5E_TT_IPV4_IPSEC_AH:
1899 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
1900 MLX5_L3_PROT_TYPE_IPV4);
1901 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
1902 MLX5_HASH_IP_IPSEC_SPI);
1903 break;
1904
1905 case MLX5E_TT_IPV6_IPSEC_AH:
1906 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
1907 MLX5_L3_PROT_TYPE_IPV6);
1908 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
1909 MLX5_HASH_IP_IPSEC_SPI);
1910 break;
1911
1912 case MLX5E_TT_IPV4_IPSEC_ESP:
1913 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
1914 MLX5_L3_PROT_TYPE_IPV4);
1915 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
1916 MLX5_HASH_IP_IPSEC_SPI);
1917 break;
1918
1919 case MLX5E_TT_IPV6_IPSEC_ESP:
1920 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
1921 MLX5_L3_PROT_TYPE_IPV6);
1922 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
1923 MLX5_HASH_IP_IPSEC_SPI);
1924 break;
1925
1926 case MLX5E_TT_IPV4:
1927 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
1928 MLX5_L3_PROT_TYPE_IPV4);
1929 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
1930 MLX5_HASH_IP);
1931 break;
1932
1933 case MLX5E_TT_IPV6:
1934 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
1935 MLX5_L3_PROT_TYPE_IPV6);
1936 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
1937 MLX5_HASH_IP);
1938 break;
1939 }
1940 }
1941
1942 static int mlx5e_create_tir(struct mlx5e_priv *priv, int tt)
1943 {
1944 struct mlx5_core_dev *mdev = priv->mdev;
1945 u32 *in;
1946 void *tirc;
1947 int inlen;
1948 int err;
1949
1950 inlen = MLX5_ST_SZ_BYTES(create_tir_in);
1951 in = mlx5_vzalloc(inlen);
1952 if (!in)
1953 return -ENOMEM;
1954
1955 tirc = MLX5_ADDR_OF(create_tir_in, in, ctx);
1956
1957 mlx5e_build_tir_ctx(priv, tirc, tt);
1958
1959 err = mlx5_core_create_tir(mdev, in, inlen, &priv->tirn[tt]);
1960
1961 kvfree(in);
1962
1963 return err;
1964 }
1965
1966 static void mlx5e_destroy_tir(struct mlx5e_priv *priv, int tt)
1967 {
1968 mlx5_core_destroy_tir(priv->mdev, priv->tirn[tt]);
1969 }
1970
1971 static int mlx5e_create_tirs(struct mlx5e_priv *priv)
1972 {
1973 int err;
1974 int i;
1975
1976 for (i = 0; i < MLX5E_NUM_TT; i++) {
1977 err = mlx5e_create_tir(priv, i);
1978 if (err)
1979 goto err_destroy_tirs;
1980 }
1981
1982 return 0;
1983
1984 err_destroy_tirs:
1985 for (i--; i >= 0; i--)
1986 mlx5e_destroy_tir(priv, i);
1987
1988 return err;
1989 }
1990
1991 static void mlx5e_destroy_tirs(struct mlx5e_priv *priv)
1992 {
1993 int i;
1994
1995 for (i = 0; i < MLX5E_NUM_TT; i++)
1996 mlx5e_destroy_tir(priv, i);
1997 }
1998
1999 int mlx5e_modify_rqs_vsd(struct mlx5e_priv *priv, bool vsd)
2000 {
2001 int err = 0;
2002 int i;
2003
2004 if (!test_bit(MLX5E_STATE_OPENED, &priv->state))
2005 return 0;
2006
2007 for (i = 0; i < priv->params.num_channels; i++) {
2008 err = mlx5e_modify_rq_vsd(&priv->channel[i]->rq, vsd);
2009 if (err)
2010 return err;
2011 }
2012
2013 return 0;
2014 }
2015
2016 static int mlx5e_setup_tc(struct net_device *netdev, u8 tc)
2017 {
2018 struct mlx5e_priv *priv = netdev_priv(netdev);
2019 bool was_opened;
2020 int err = 0;
2021
2022 if (tc && tc != MLX5E_MAX_NUM_TC)
2023 return -EINVAL;
2024
2025 mutex_lock(&priv->state_lock);
2026
2027 was_opened = test_bit(MLX5E_STATE_OPENED, &priv->state);
2028 if (was_opened)
2029 mlx5e_close_locked(priv->netdev);
2030
2031 priv->params.num_tc = tc ? tc : 1;
2032
2033 if (was_opened)
2034 err = mlx5e_open_locked(priv->netdev);
2035
2036 mutex_unlock(&priv->state_lock);
2037
2038 return err;
2039 }
2040
2041 static int mlx5e_ndo_setup_tc(struct net_device *dev, u32 handle,
2042 __be16 proto, struct tc_to_netdev *tc)
2043 {
2044 struct mlx5e_priv *priv = netdev_priv(dev);
2045
2046 if (TC_H_MAJ(handle) != TC_H_MAJ(TC_H_INGRESS))
2047 goto mqprio;
2048
2049 switch (tc->type) {
2050 case TC_SETUP_CLSFLOWER:
2051 switch (tc->cls_flower->command) {
2052 case TC_CLSFLOWER_REPLACE:
2053 return mlx5e_configure_flower(priv, proto, tc->cls_flower);
2054 case TC_CLSFLOWER_DESTROY:
2055 return mlx5e_delete_flower(priv, tc->cls_flower);
2056 }
2057 default:
2058 return -EOPNOTSUPP;
2059 }
2060
2061 mqprio:
2062 if (tc->type != TC_SETUP_MQPRIO)
2063 return -EINVAL;
2064
2065 return mlx5e_setup_tc(dev, tc->tc);
2066 }
2067
2068 static struct rtnl_link_stats64 *
2069 mlx5e_get_stats(struct net_device *dev, struct rtnl_link_stats64 *stats)
2070 {
2071 struct mlx5e_priv *priv = netdev_priv(dev);
2072 struct mlx5e_sw_stats *sstats = &priv->stats.sw;
2073 struct mlx5e_vport_stats *vstats = &priv->stats.vport;
2074 struct mlx5e_pport_stats *pstats = &priv->stats.pport;
2075
2076 stats->rx_packets = sstats->rx_packets;
2077 stats->rx_bytes = sstats->rx_bytes;
2078 stats->tx_packets = sstats->tx_packets;
2079 stats->tx_bytes = sstats->tx_bytes;
2080
2081 stats->rx_dropped = priv->stats.qcnt.rx_out_of_buffer;
2082 stats->tx_dropped = sstats->tx_queue_dropped;
2083
2084 stats->rx_length_errors =
2085 PPORT_802_3_GET(pstats, a_in_range_length_errors) +
2086 PPORT_802_3_GET(pstats, a_out_of_range_length_field) +
2087 PPORT_802_3_GET(pstats, a_frame_too_long_errors);
2088 stats->rx_crc_errors =
2089 PPORT_802_3_GET(pstats, a_frame_check_sequence_errors);
2090 stats->rx_frame_errors = PPORT_802_3_GET(pstats, a_alignment_errors);
2091 stats->tx_aborted_errors = PPORT_2863_GET(pstats, if_out_discards);
2092 stats->tx_carrier_errors =
2093 PPORT_802_3_GET(pstats, a_symbol_error_during_carrier);
2094 stats->rx_errors = stats->rx_length_errors + stats->rx_crc_errors +
2095 stats->rx_frame_errors;
2096 stats->tx_errors = stats->tx_aborted_errors + stats->tx_carrier_errors;
2097
2098 /* vport multicast also counts packets that are dropped due to steering
2099 * or rx out of buffer
2100 */
2101 stats->multicast =
2102 VPORT_COUNTER_GET(vstats, received_eth_multicast.packets);
2103
2104 return stats;
2105 }
2106
2107 static void mlx5e_set_rx_mode(struct net_device *dev)
2108 {
2109 struct mlx5e_priv *priv = netdev_priv(dev);
2110
2111 schedule_work(&priv->set_rx_mode_work);
2112 }
2113
2114 static int mlx5e_set_mac(struct net_device *netdev, void *addr)
2115 {
2116 struct mlx5e_priv *priv = netdev_priv(netdev);
2117 struct sockaddr *saddr = addr;
2118
2119 if (!is_valid_ether_addr(saddr->sa_data))
2120 return -EADDRNOTAVAIL;
2121
2122 netif_addr_lock_bh(netdev);
2123 ether_addr_copy(netdev->dev_addr, saddr->sa_data);
2124 netif_addr_unlock_bh(netdev);
2125
2126 schedule_work(&priv->set_rx_mode_work);
2127
2128 return 0;
2129 }
2130
2131 #define MLX5E_SET_FEATURE(netdev, feature, enable) \
2132 do { \
2133 if (enable) \
2134 netdev->features |= feature; \
2135 else \
2136 netdev->features &= ~feature; \
2137 } while (0)
2138
2139 typedef int (*mlx5e_feature_handler)(struct net_device *netdev, bool enable);
2140
2141 static int set_feature_lro(struct net_device *netdev, bool enable)
2142 {
2143 struct mlx5e_priv *priv = netdev_priv(netdev);
2144 bool was_opened = test_bit(MLX5E_STATE_OPENED, &priv->state);
2145 int err;
2146
2147 mutex_lock(&priv->state_lock);
2148
2149 if (was_opened && (priv->params.rq_wq_type == MLX5_WQ_TYPE_LINKED_LIST))
2150 mlx5e_close_locked(priv->netdev);
2151
2152 priv->params.lro_en = enable;
2153 err = mlx5e_modify_tirs_lro(priv);
2154 if (err) {
2155 netdev_err(netdev, "lro modify failed, %d\n", err);
2156 priv->params.lro_en = !enable;
2157 }
2158
2159 if (was_opened && (priv->params.rq_wq_type == MLX5_WQ_TYPE_LINKED_LIST))
2160 mlx5e_open_locked(priv->netdev);
2161
2162 mutex_unlock(&priv->state_lock);
2163
2164 return err;
2165 }
2166
2167 static int set_feature_vlan_filter(struct net_device *netdev, bool enable)
2168 {
2169 struct mlx5e_priv *priv = netdev_priv(netdev);
2170
2171 if (enable)
2172 mlx5e_enable_vlan_filter(priv);
2173 else
2174 mlx5e_disable_vlan_filter(priv);
2175
2176 return 0;
2177 }
2178
2179 static int set_feature_tc_num_filters(struct net_device *netdev, bool enable)
2180 {
2181 struct mlx5e_priv *priv = netdev_priv(netdev);
2182
2183 if (!enable && mlx5e_tc_num_filters(priv)) {
2184 netdev_err(netdev,
2185 "Active offloaded tc filters, can't turn hw_tc_offload off\n");
2186 return -EINVAL;
2187 }
2188
2189 return 0;
2190 }
2191
2192 static int set_feature_rx_all(struct net_device *netdev, bool enable)
2193 {
2194 struct mlx5e_priv *priv = netdev_priv(netdev);
2195 struct mlx5_core_dev *mdev = priv->mdev;
2196
2197 return mlx5_set_port_fcs(mdev, !enable);
2198 }
2199
2200 static int set_feature_rx_vlan(struct net_device *netdev, bool enable)
2201 {
2202 struct mlx5e_priv *priv = netdev_priv(netdev);
2203 int err;
2204
2205 mutex_lock(&priv->state_lock);
2206
2207 priv->params.vlan_strip_disable = !enable;
2208 err = mlx5e_modify_rqs_vsd(priv, !enable);
2209 if (err)
2210 priv->params.vlan_strip_disable = enable;
2211
2212 mutex_unlock(&priv->state_lock);
2213
2214 return err;
2215 }
2216
2217 static int mlx5e_handle_feature(struct net_device *netdev,
2218 netdev_features_t wanted_features,
2219 netdev_features_t feature,
2220 mlx5e_feature_handler feature_handler)
2221 {
2222 netdev_features_t changes = wanted_features ^ netdev->features;
2223 bool enable = !!(wanted_features & feature);
2224 int err;
2225
2226 if (!(changes & feature))
2227 return 0;
2228
2229 err = feature_handler(netdev, enable);
2230 if (err) {
2231 netdev_err(netdev, "%s feature 0x%llx failed err %d\n",
2232 enable ? "Enable" : "Disable", feature, err);
2233 return err;
2234 }
2235
2236 MLX5E_SET_FEATURE(netdev, feature, enable);
2237 return 0;
2238 }
2239
2240 static int mlx5e_set_features(struct net_device *netdev,
2241 netdev_features_t features)
2242 {
2243 int err;
2244
2245 err = mlx5e_handle_feature(netdev, features, NETIF_F_LRO,
2246 set_feature_lro);
2247 err |= mlx5e_handle_feature(netdev, features,
2248 NETIF_F_HW_VLAN_CTAG_FILTER,
2249 set_feature_vlan_filter);
2250 err |= mlx5e_handle_feature(netdev, features, NETIF_F_HW_TC,
2251 set_feature_tc_num_filters);
2252 err |= mlx5e_handle_feature(netdev, features, NETIF_F_RXALL,
2253 set_feature_rx_all);
2254 err |= mlx5e_handle_feature(netdev, features, NETIF_F_HW_VLAN_CTAG_RX,
2255 set_feature_rx_vlan);
2256
2257 return err ? -EINVAL : 0;
2258 }
2259
2260 static int mlx5e_change_mtu(struct net_device *netdev, int new_mtu)
2261 {
2262 struct mlx5e_priv *priv = netdev_priv(netdev);
2263 struct mlx5_core_dev *mdev = priv->mdev;
2264 bool was_opened;
2265 int max_mtu;
2266 int err = 0;
2267
2268 mlx5_query_port_max_mtu(mdev, &max_mtu, 1);
2269
2270 max_mtu = MLX5E_HW2SW_MTU(max_mtu);
2271
2272 if (new_mtu > max_mtu) {
2273 netdev_err(netdev,
2274 "%s: Bad MTU (%d) > (%d) Max\n",
2275 __func__, new_mtu, max_mtu);
2276 return -EINVAL;
2277 }
2278
2279 mutex_lock(&priv->state_lock);
2280
2281 was_opened = test_bit(MLX5E_STATE_OPENED, &priv->state);
2282 if (was_opened)
2283 mlx5e_close_locked(netdev);
2284
2285 netdev->mtu = new_mtu;
2286
2287 if (was_opened)
2288 err = mlx5e_open_locked(netdev);
2289
2290 mutex_unlock(&priv->state_lock);
2291
2292 return err;
2293 }
2294
2295 static int mlx5e_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
2296 {
2297 switch (cmd) {
2298 case SIOCSHWTSTAMP:
2299 return mlx5e_hwstamp_set(dev, ifr);
2300 case SIOCGHWTSTAMP:
2301 return mlx5e_hwstamp_get(dev, ifr);
2302 default:
2303 return -EOPNOTSUPP;
2304 }
2305 }
2306
2307 static int mlx5e_set_vf_mac(struct net_device *dev, int vf, u8 *mac)
2308 {
2309 struct mlx5e_priv *priv = netdev_priv(dev);
2310 struct mlx5_core_dev *mdev = priv->mdev;
2311
2312 return mlx5_eswitch_set_vport_mac(mdev->priv.eswitch, vf + 1, mac);
2313 }
2314
2315 static int mlx5e_set_vf_vlan(struct net_device *dev, int vf, u16 vlan, u8 qos)
2316 {
2317 struct mlx5e_priv *priv = netdev_priv(dev);
2318 struct mlx5_core_dev *mdev = priv->mdev;
2319
2320 return mlx5_eswitch_set_vport_vlan(mdev->priv.eswitch, vf + 1,
2321 vlan, qos);
2322 }
2323
2324 static int mlx5_vport_link2ifla(u8 esw_link)
2325 {
2326 switch (esw_link) {
2327 case MLX5_ESW_VPORT_ADMIN_STATE_DOWN:
2328 return IFLA_VF_LINK_STATE_DISABLE;
2329 case MLX5_ESW_VPORT_ADMIN_STATE_UP:
2330 return IFLA_VF_LINK_STATE_ENABLE;
2331 }
2332 return IFLA_VF_LINK_STATE_AUTO;
2333 }
2334
2335 static int mlx5_ifla_link2vport(u8 ifla_link)
2336 {
2337 switch (ifla_link) {
2338 case IFLA_VF_LINK_STATE_DISABLE:
2339 return MLX5_ESW_VPORT_ADMIN_STATE_DOWN;
2340 case IFLA_VF_LINK_STATE_ENABLE:
2341 return MLX5_ESW_VPORT_ADMIN_STATE_UP;
2342 }
2343 return MLX5_ESW_VPORT_ADMIN_STATE_AUTO;
2344 }
2345
2346 static int mlx5e_set_vf_link_state(struct net_device *dev, int vf,
2347 int link_state)
2348 {
2349 struct mlx5e_priv *priv = netdev_priv(dev);
2350 struct mlx5_core_dev *mdev = priv->mdev;
2351
2352 return mlx5_eswitch_set_vport_state(mdev->priv.eswitch, vf + 1,
2353 mlx5_ifla_link2vport(link_state));
2354 }
2355
2356 static int mlx5e_get_vf_config(struct net_device *dev,
2357 int vf, struct ifla_vf_info *ivi)
2358 {
2359 struct mlx5e_priv *priv = netdev_priv(dev);
2360 struct mlx5_core_dev *mdev = priv->mdev;
2361 int err;
2362
2363 err = mlx5_eswitch_get_vport_config(mdev->priv.eswitch, vf + 1, ivi);
2364 if (err)
2365 return err;
2366 ivi->linkstate = mlx5_vport_link2ifla(ivi->linkstate);
2367 return 0;
2368 }
2369
2370 static int mlx5e_get_vf_stats(struct net_device *dev,
2371 int vf, struct ifla_vf_stats *vf_stats)
2372 {
2373 struct mlx5e_priv *priv = netdev_priv(dev);
2374 struct mlx5_core_dev *mdev = priv->mdev;
2375
2376 return mlx5_eswitch_get_vport_stats(mdev->priv.eswitch, vf + 1,
2377 vf_stats);
2378 }
2379
2380 static void mlx5e_add_vxlan_port(struct net_device *netdev,
2381 sa_family_t sa_family, __be16 port)
2382 {
2383 struct mlx5e_priv *priv = netdev_priv(netdev);
2384
2385 if (!mlx5e_vxlan_allowed(priv->mdev))
2386 return;
2387
2388 mlx5e_vxlan_add_port(priv, be16_to_cpu(port));
2389 }
2390
2391 static void mlx5e_del_vxlan_port(struct net_device *netdev,
2392 sa_family_t sa_family, __be16 port)
2393 {
2394 struct mlx5e_priv *priv = netdev_priv(netdev);
2395
2396 if (!mlx5e_vxlan_allowed(priv->mdev))
2397 return;
2398
2399 mlx5e_vxlan_del_port(priv, be16_to_cpu(port));
2400 }
2401
2402 static netdev_features_t mlx5e_vxlan_features_check(struct mlx5e_priv *priv,
2403 struct sk_buff *skb,
2404 netdev_features_t features)
2405 {
2406 struct udphdr *udph;
2407 u16 proto;
2408 u16 port = 0;
2409
2410 switch (vlan_get_protocol(skb)) {
2411 case htons(ETH_P_IP):
2412 proto = ip_hdr(skb)->protocol;
2413 break;
2414 case htons(ETH_P_IPV6):
2415 proto = ipv6_hdr(skb)->nexthdr;
2416 break;
2417 default:
2418 goto out;
2419 }
2420
2421 if (proto == IPPROTO_UDP) {
2422 udph = udp_hdr(skb);
2423 port = be16_to_cpu(udph->dest);
2424 }
2425
2426 /* Verify if UDP port is being offloaded by HW */
2427 if (port && mlx5e_vxlan_lookup_port(priv, port))
2428 return features;
2429
2430 out:
2431 /* Disable CSUM and GSO if the udp dport is not offloaded by HW */
2432 return features & ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK);
2433 }
2434
2435 static netdev_features_t mlx5e_features_check(struct sk_buff *skb,
2436 struct net_device *netdev,
2437 netdev_features_t features)
2438 {
2439 struct mlx5e_priv *priv = netdev_priv(netdev);
2440
2441 features = vlan_features_check(skb, features);
2442 features = vxlan_features_check(skb, features);
2443
2444 /* Validate if the tunneled packet is being offloaded by HW */
2445 if (skb->encapsulation &&
2446 (features & NETIF_F_CSUM_MASK || features & NETIF_F_GSO_MASK))
2447 return mlx5e_vxlan_features_check(priv, skb, features);
2448
2449 return features;
2450 }
2451
2452 static const struct net_device_ops mlx5e_netdev_ops_basic = {
2453 .ndo_open = mlx5e_open,
2454 .ndo_stop = mlx5e_close,
2455 .ndo_start_xmit = mlx5e_xmit,
2456 .ndo_setup_tc = mlx5e_ndo_setup_tc,
2457 .ndo_select_queue = mlx5e_select_queue,
2458 .ndo_get_stats64 = mlx5e_get_stats,
2459 .ndo_set_rx_mode = mlx5e_set_rx_mode,
2460 .ndo_set_mac_address = mlx5e_set_mac,
2461 .ndo_vlan_rx_add_vid = mlx5e_vlan_rx_add_vid,
2462 .ndo_vlan_rx_kill_vid = mlx5e_vlan_rx_kill_vid,
2463 .ndo_set_features = mlx5e_set_features,
2464 .ndo_change_mtu = mlx5e_change_mtu,
2465 .ndo_do_ioctl = mlx5e_ioctl,
2466 };
2467
2468 static const struct net_device_ops mlx5e_netdev_ops_sriov = {
2469 .ndo_open = mlx5e_open,
2470 .ndo_stop = mlx5e_close,
2471 .ndo_start_xmit = mlx5e_xmit,
2472 .ndo_setup_tc = mlx5e_ndo_setup_tc,
2473 .ndo_select_queue = mlx5e_select_queue,
2474 .ndo_get_stats64 = mlx5e_get_stats,
2475 .ndo_set_rx_mode = mlx5e_set_rx_mode,
2476 .ndo_set_mac_address = mlx5e_set_mac,
2477 .ndo_vlan_rx_add_vid = mlx5e_vlan_rx_add_vid,
2478 .ndo_vlan_rx_kill_vid = mlx5e_vlan_rx_kill_vid,
2479 .ndo_set_features = mlx5e_set_features,
2480 .ndo_change_mtu = mlx5e_change_mtu,
2481 .ndo_do_ioctl = mlx5e_ioctl,
2482 .ndo_add_vxlan_port = mlx5e_add_vxlan_port,
2483 .ndo_del_vxlan_port = mlx5e_del_vxlan_port,
2484 .ndo_features_check = mlx5e_features_check,
2485 .ndo_set_vf_mac = mlx5e_set_vf_mac,
2486 .ndo_set_vf_vlan = mlx5e_set_vf_vlan,
2487 .ndo_get_vf_config = mlx5e_get_vf_config,
2488 .ndo_set_vf_link_state = mlx5e_set_vf_link_state,
2489 .ndo_get_vf_stats = mlx5e_get_vf_stats,
2490 };
2491
2492 static int mlx5e_check_required_hca_cap(struct mlx5_core_dev *mdev)
2493 {
2494 if (MLX5_CAP_GEN(mdev, port_type) != MLX5_CAP_PORT_TYPE_ETH)
2495 return -ENOTSUPP;
2496 if (!MLX5_CAP_GEN(mdev, eth_net_offloads) ||
2497 !MLX5_CAP_GEN(mdev, nic_flow_table) ||
2498 !MLX5_CAP_ETH(mdev, csum_cap) ||
2499 !MLX5_CAP_ETH(mdev, max_lso_cap) ||
2500 !MLX5_CAP_ETH(mdev, vlan_cap) ||
2501 !MLX5_CAP_ETH(mdev, rss_ind_tbl_cap) ||
2502 MLX5_CAP_FLOWTABLE(mdev,
2503 flow_table_properties_nic_receive.max_ft_level)
2504 < 3) {
2505 mlx5_core_warn(mdev,
2506 "Not creating net device, some required device capabilities are missing\n");
2507 return -ENOTSUPP;
2508 }
2509 if (!MLX5_CAP_ETH(mdev, self_lb_en_modifiable))
2510 mlx5_core_warn(mdev, "Self loop back prevention is not supported\n");
2511 if (!MLX5_CAP_GEN(mdev, cq_moderation))
2512 mlx5_core_warn(mdev, "CQ modiration is not supported\n");
2513
2514 return 0;
2515 }
2516
2517 u16 mlx5e_get_max_inline_cap(struct mlx5_core_dev *mdev)
2518 {
2519 int bf_buf_size = (1 << MLX5_CAP_GEN(mdev, log_bf_reg_size)) / 2;
2520
2521 return bf_buf_size -
2522 sizeof(struct mlx5e_tx_wqe) +
2523 2 /*sizeof(mlx5e_tx_wqe.inline_hdr_start)*/;
2524 }
2525
2526 #ifdef CONFIG_MLX5_CORE_EN_DCB
2527 static void mlx5e_ets_init(struct mlx5e_priv *priv)
2528 {
2529 int i;
2530
2531 priv->params.ets.ets_cap = mlx5_max_tc(priv->mdev) + 1;
2532 for (i = 0; i < priv->params.ets.ets_cap; i++) {
2533 priv->params.ets.tc_tx_bw[i] = MLX5E_MAX_BW_ALLOC;
2534 priv->params.ets.tc_tsa[i] = IEEE_8021QAZ_TSA_VENDOR;
2535 priv->params.ets.prio_tc[i] = i;
2536 }
2537
2538 /* tclass[prio=0]=1, tclass[prio=1]=0, tclass[prio=i]=i (for i>1) */
2539 priv->params.ets.prio_tc[0] = 1;
2540 priv->params.ets.prio_tc[1] = 0;
2541 }
2542 #endif
2543
2544 void mlx5e_build_default_indir_rqt(struct mlx5_core_dev *mdev,
2545 u32 *indirection_rqt, int len,
2546 int num_channels)
2547 {
2548 int node = mdev->priv.numa_node;
2549 int node_num_of_cores;
2550 int i;
2551
2552 if (node == -1)
2553 node = first_online_node;
2554
2555 node_num_of_cores = cpumask_weight(cpumask_of_node(node));
2556
2557 if (node_num_of_cores)
2558 num_channels = min_t(int, num_channels, node_num_of_cores);
2559
2560 for (i = 0; i < len; i++)
2561 indirection_rqt[i] = i % num_channels;
2562 }
2563
2564 static bool mlx5e_check_fragmented_striding_rq_cap(struct mlx5_core_dev *mdev)
2565 {
2566 return MLX5_CAP_GEN(mdev, striding_rq) &&
2567 MLX5_CAP_GEN(mdev, umr_ptr_rlky) &&
2568 MLX5_CAP_ETH(mdev, reg_umr_sq);
2569 }
2570
2571 static void mlx5e_build_netdev_priv(struct mlx5_core_dev *mdev,
2572 struct net_device *netdev,
2573 int num_channels)
2574 {
2575 struct mlx5e_priv *priv = netdev_priv(netdev);
2576
2577 priv->params.log_sq_size =
2578 MLX5E_PARAMS_DEFAULT_LOG_SQ_SIZE;
2579 priv->params.rq_wq_type = mlx5e_check_fragmented_striding_rq_cap(mdev) ?
2580 MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ :
2581 MLX5_WQ_TYPE_LINKED_LIST;
2582
2583 switch (priv->params.rq_wq_type) {
2584 case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ:
2585 priv->params.log_rq_size = MLX5E_PARAMS_DEFAULT_LOG_RQ_SIZE_MPW;
2586 priv->params.lro_en = true;
2587 break;
2588 default: /* MLX5_WQ_TYPE_LINKED_LIST */
2589 priv->params.log_rq_size = MLX5E_PARAMS_DEFAULT_LOG_RQ_SIZE;
2590 }
2591
2592 priv->params.min_rx_wqes = mlx5_min_rx_wqes(priv->params.rq_wq_type,
2593 BIT(priv->params.log_rq_size));
2594 priv->params.rx_cq_moderation_usec =
2595 MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_USEC;
2596 priv->params.rx_cq_moderation_pkts =
2597 MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_PKTS;
2598 priv->params.tx_cq_moderation_usec =
2599 MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_USEC;
2600 priv->params.tx_cq_moderation_pkts =
2601 MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_PKTS;
2602 priv->params.tx_max_inline = mlx5e_get_max_inline_cap(mdev);
2603 priv->params.num_tc = 1;
2604 priv->params.rss_hfunc = ETH_RSS_HASH_XOR;
2605
2606 netdev_rss_key_fill(priv->params.toeplitz_hash_key,
2607 sizeof(priv->params.toeplitz_hash_key));
2608
2609 mlx5e_build_default_indir_rqt(mdev, priv->params.indirection_rqt,
2610 MLX5E_INDIR_RQT_SIZE, num_channels);
2611
2612 priv->params.lro_wqe_sz =
2613 MLX5E_PARAMS_DEFAULT_LRO_WQE_SZ;
2614
2615 priv->mdev = mdev;
2616 priv->netdev = netdev;
2617 priv->params.num_channels = num_channels;
2618
2619 #ifdef CONFIG_MLX5_CORE_EN_DCB
2620 mlx5e_ets_init(priv);
2621 #endif
2622
2623 mutex_init(&priv->state_lock);
2624
2625 INIT_WORK(&priv->update_carrier_work, mlx5e_update_carrier_work);
2626 INIT_WORK(&priv->set_rx_mode_work, mlx5e_set_rx_mode_work);
2627 INIT_DELAYED_WORK(&priv->update_stats_work, mlx5e_update_stats_work);
2628 }
2629
2630 static void mlx5e_set_netdev_dev_addr(struct net_device *netdev)
2631 {
2632 struct mlx5e_priv *priv = netdev_priv(netdev);
2633
2634 mlx5_query_nic_vport_mac_address(priv->mdev, 0, netdev->dev_addr);
2635 if (is_zero_ether_addr(netdev->dev_addr) &&
2636 !MLX5_CAP_GEN(priv->mdev, vport_group_manager)) {
2637 eth_hw_addr_random(netdev);
2638 mlx5_core_info(priv->mdev, "Assigned random MAC address %pM\n", netdev->dev_addr);
2639 }
2640 }
2641
2642 static void mlx5e_build_netdev(struct net_device *netdev)
2643 {
2644 struct mlx5e_priv *priv = netdev_priv(netdev);
2645 struct mlx5_core_dev *mdev = priv->mdev;
2646 bool fcs_supported;
2647 bool fcs_enabled;
2648
2649 SET_NETDEV_DEV(netdev, &mdev->pdev->dev);
2650
2651 if (MLX5_CAP_GEN(mdev, vport_group_manager)) {
2652 netdev->netdev_ops = &mlx5e_netdev_ops_sriov;
2653 #ifdef CONFIG_MLX5_CORE_EN_DCB
2654 netdev->dcbnl_ops = &mlx5e_dcbnl_ops;
2655 #endif
2656 } else {
2657 netdev->netdev_ops = &mlx5e_netdev_ops_basic;
2658 }
2659
2660 netdev->watchdog_timeo = 15 * HZ;
2661
2662 netdev->ethtool_ops = &mlx5e_ethtool_ops;
2663
2664 netdev->vlan_features |= NETIF_F_SG;
2665 netdev->vlan_features |= NETIF_F_IP_CSUM;
2666 netdev->vlan_features |= NETIF_F_IPV6_CSUM;
2667 netdev->vlan_features |= NETIF_F_GRO;
2668 netdev->vlan_features |= NETIF_F_TSO;
2669 netdev->vlan_features |= NETIF_F_TSO6;
2670 netdev->vlan_features |= NETIF_F_RXCSUM;
2671 netdev->vlan_features |= NETIF_F_RXHASH;
2672
2673 if (!!MLX5_CAP_ETH(mdev, lro_cap))
2674 netdev->vlan_features |= NETIF_F_LRO;
2675
2676 netdev->hw_features = netdev->vlan_features;
2677 netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_TX;
2678 netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_RX;
2679 netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_FILTER;
2680
2681 if (mlx5e_vxlan_allowed(mdev)) {
2682 netdev->hw_features |= NETIF_F_GSO_UDP_TUNNEL;
2683 netdev->hw_enc_features |= NETIF_F_IP_CSUM;
2684 netdev->hw_enc_features |= NETIF_F_RXCSUM;
2685 netdev->hw_enc_features |= NETIF_F_TSO;
2686 netdev->hw_enc_features |= NETIF_F_TSO6;
2687 netdev->hw_enc_features |= NETIF_F_RXHASH;
2688 netdev->hw_enc_features |= NETIF_F_GSO_UDP_TUNNEL;
2689 }
2690
2691 mlx5_query_port_fcs(mdev, &fcs_supported, &fcs_enabled);
2692
2693 if (fcs_supported)
2694 netdev->hw_features |= NETIF_F_RXALL;
2695
2696 netdev->features = netdev->hw_features;
2697 if (!priv->params.lro_en)
2698 netdev->features &= ~NETIF_F_LRO;
2699
2700 if (fcs_enabled)
2701 netdev->features &= ~NETIF_F_RXALL;
2702
2703 #define FT_CAP(f) MLX5_CAP_FLOWTABLE(mdev, flow_table_properties_nic_receive.f)
2704 if (FT_CAP(flow_modify_en) &&
2705 FT_CAP(modify_root) &&
2706 FT_CAP(identified_miss_table_mode) &&
2707 FT_CAP(flow_table_modify))
2708 priv->netdev->hw_features |= NETIF_F_HW_TC;
2709
2710 netdev->features |= NETIF_F_HIGHDMA;
2711
2712 netdev->priv_flags |= IFF_UNICAST_FLT;
2713
2714 mlx5e_set_netdev_dev_addr(netdev);
2715 }
2716
2717 static int mlx5e_create_mkey(struct mlx5e_priv *priv, u32 pdn,
2718 struct mlx5_core_mkey *mkey)
2719 {
2720 struct mlx5_core_dev *mdev = priv->mdev;
2721 struct mlx5_create_mkey_mbox_in *in;
2722 int err;
2723
2724 in = mlx5_vzalloc(sizeof(*in));
2725 if (!in)
2726 return -ENOMEM;
2727
2728 in->seg.flags = MLX5_PERM_LOCAL_WRITE |
2729 MLX5_PERM_LOCAL_READ |
2730 MLX5_ACCESS_MODE_PA;
2731 in->seg.flags_pd = cpu_to_be32(pdn | MLX5_MKEY_LEN64);
2732 in->seg.qpn_mkey7_0 = cpu_to_be32(0xffffff << 8);
2733
2734 err = mlx5_core_create_mkey(mdev, mkey, in, sizeof(*in), NULL, NULL,
2735 NULL);
2736
2737 kvfree(in);
2738
2739 return err;
2740 }
2741
2742 static void mlx5e_create_q_counter(struct mlx5e_priv *priv)
2743 {
2744 struct mlx5_core_dev *mdev = priv->mdev;
2745 int err;
2746
2747 err = mlx5_core_alloc_q_counter(mdev, &priv->q_counter);
2748 if (err) {
2749 mlx5_core_warn(mdev, "alloc queue counter failed, %d\n", err);
2750 priv->q_counter = 0;
2751 }
2752 }
2753
2754 static void mlx5e_destroy_q_counter(struct mlx5e_priv *priv)
2755 {
2756 if (!priv->q_counter)
2757 return;
2758
2759 mlx5_core_dealloc_q_counter(priv->mdev, priv->q_counter);
2760 }
2761
2762 static int mlx5e_create_umr_mkey(struct mlx5e_priv *priv)
2763 {
2764 struct mlx5_core_dev *mdev = priv->mdev;
2765 struct mlx5_create_mkey_mbox_in *in;
2766 struct mlx5_mkey_seg *mkc;
2767 int inlen = sizeof(*in);
2768 u64 npages =
2769 mlx5e_get_max_num_channels(mdev) * MLX5_CHANNEL_MAX_NUM_MTTS;
2770 int err;
2771
2772 in = mlx5_vzalloc(inlen);
2773 if (!in)
2774 return -ENOMEM;
2775
2776 mkc = &in->seg;
2777 mkc->status = MLX5_MKEY_STATUS_FREE;
2778 mkc->flags = MLX5_PERM_UMR_EN |
2779 MLX5_PERM_LOCAL_READ |
2780 MLX5_PERM_LOCAL_WRITE |
2781 MLX5_ACCESS_MODE_MTT;
2782
2783 mkc->qpn_mkey7_0 = cpu_to_be32(0xffffff << 8);
2784 mkc->flags_pd = cpu_to_be32(priv->pdn);
2785 mkc->len = cpu_to_be64(npages << PAGE_SHIFT);
2786 mkc->xlt_oct_size = cpu_to_be32(mlx5e_get_mtt_octw(npages));
2787 mkc->log2_page_size = PAGE_SHIFT;
2788
2789 err = mlx5_core_create_mkey(mdev, &priv->umr_mkey, in, inlen, NULL,
2790 NULL, NULL);
2791
2792 kvfree(in);
2793
2794 return err;
2795 }
2796
2797 static void *mlx5e_create_netdev(struct mlx5_core_dev *mdev)
2798 {
2799 struct net_device *netdev;
2800 struct mlx5e_priv *priv;
2801 int nch = mlx5e_get_max_num_channels(mdev);
2802 int err;
2803
2804 if (mlx5e_check_required_hca_cap(mdev))
2805 return NULL;
2806
2807 netdev = alloc_etherdev_mqs(sizeof(struct mlx5e_priv),
2808 nch * MLX5E_MAX_NUM_TC,
2809 nch);
2810 if (!netdev) {
2811 mlx5_core_err(mdev, "alloc_etherdev_mqs() failed\n");
2812 return NULL;
2813 }
2814
2815 mlx5e_build_netdev_priv(mdev, netdev, nch);
2816 mlx5e_build_netdev(netdev);
2817
2818 netif_carrier_off(netdev);
2819
2820 priv = netdev_priv(netdev);
2821
2822 err = mlx5_alloc_map_uar(mdev, &priv->cq_uar, false);
2823 if (err) {
2824 mlx5_core_err(mdev, "alloc_map uar failed, %d\n", err);
2825 goto err_free_netdev;
2826 }
2827
2828 err = mlx5_core_alloc_pd(mdev, &priv->pdn);
2829 if (err) {
2830 mlx5_core_err(mdev, "alloc pd failed, %d\n", err);
2831 goto err_unmap_free_uar;
2832 }
2833
2834 err = mlx5_core_alloc_transport_domain(mdev, &priv->tdn);
2835 if (err) {
2836 mlx5_core_err(mdev, "alloc td failed, %d\n", err);
2837 goto err_dealloc_pd;
2838 }
2839
2840 err = mlx5e_create_mkey(priv, priv->pdn, &priv->mkey);
2841 if (err) {
2842 mlx5_core_err(mdev, "create mkey failed, %d\n", err);
2843 goto err_dealloc_transport_domain;
2844 }
2845
2846 err = mlx5e_create_umr_mkey(priv);
2847 if (err) {
2848 mlx5_core_err(mdev, "create umr mkey failed, %d\n", err);
2849 goto err_destroy_mkey;
2850 }
2851
2852 err = mlx5e_create_tises(priv);
2853 if (err) {
2854 mlx5_core_warn(mdev, "create tises failed, %d\n", err);
2855 goto err_destroy_umr_mkey;
2856 }
2857
2858 err = mlx5e_open_drop_rq(priv);
2859 if (err) {
2860 mlx5_core_err(mdev, "open drop rq failed, %d\n", err);
2861 goto err_destroy_tises;
2862 }
2863
2864 err = mlx5e_create_rqt(priv, MLX5E_INDIRECTION_RQT);
2865 if (err) {
2866 mlx5_core_warn(mdev, "create rqt(INDIR) failed, %d\n", err);
2867 goto err_close_drop_rq;
2868 }
2869
2870 err = mlx5e_create_rqt(priv, MLX5E_SINGLE_RQ_RQT);
2871 if (err) {
2872 mlx5_core_warn(mdev, "create rqt(SINGLE) failed, %d\n", err);
2873 goto err_destroy_rqt_indir;
2874 }
2875
2876 err = mlx5e_create_tirs(priv);
2877 if (err) {
2878 mlx5_core_warn(mdev, "create tirs failed, %d\n", err);
2879 goto err_destroy_rqt_single;
2880 }
2881
2882 err = mlx5e_create_flow_tables(priv);
2883 if (err) {
2884 mlx5_core_warn(mdev, "create flow tables failed, %d\n", err);
2885 goto err_destroy_tirs;
2886 }
2887
2888 mlx5e_create_q_counter(priv);
2889
2890 mlx5e_init_eth_addr(priv);
2891
2892 mlx5e_vxlan_init(priv);
2893
2894 err = mlx5e_tc_init(priv);
2895 if (err)
2896 goto err_dealloc_q_counters;
2897
2898 #ifdef CONFIG_MLX5_CORE_EN_DCB
2899 mlx5e_dcbnl_ieee_setets_core(priv, &priv->params.ets);
2900 #endif
2901
2902 err = register_netdev(netdev);
2903 if (err) {
2904 mlx5_core_err(mdev, "register_netdev failed, %d\n", err);
2905 goto err_tc_cleanup;
2906 }
2907
2908 if (mlx5e_vxlan_allowed(mdev))
2909 vxlan_get_rx_port(netdev);
2910
2911 mlx5e_enable_async_events(priv);
2912 schedule_work(&priv->set_rx_mode_work);
2913
2914 return priv;
2915
2916 err_tc_cleanup:
2917 mlx5e_tc_cleanup(priv);
2918
2919 err_dealloc_q_counters:
2920 mlx5e_destroy_q_counter(priv);
2921 mlx5e_destroy_flow_tables(priv);
2922
2923 err_destroy_tirs:
2924 mlx5e_destroy_tirs(priv);
2925
2926 err_destroy_rqt_single:
2927 mlx5e_destroy_rqt(priv, MLX5E_SINGLE_RQ_RQT);
2928
2929 err_destroy_rqt_indir:
2930 mlx5e_destroy_rqt(priv, MLX5E_INDIRECTION_RQT);
2931
2932 err_close_drop_rq:
2933 mlx5e_close_drop_rq(priv);
2934
2935 err_destroy_tises:
2936 mlx5e_destroy_tises(priv);
2937
2938 err_destroy_umr_mkey:
2939 mlx5_core_destroy_mkey(mdev, &priv->umr_mkey);
2940
2941 err_destroy_mkey:
2942 mlx5_core_destroy_mkey(mdev, &priv->mkey);
2943
2944 err_dealloc_transport_domain:
2945 mlx5_core_dealloc_transport_domain(mdev, priv->tdn);
2946
2947 err_dealloc_pd:
2948 mlx5_core_dealloc_pd(mdev, priv->pdn);
2949
2950 err_unmap_free_uar:
2951 mlx5_unmap_free_uar(mdev, &priv->cq_uar);
2952
2953 err_free_netdev:
2954 free_netdev(netdev);
2955
2956 return NULL;
2957 }
2958
2959 static void mlx5e_destroy_netdev(struct mlx5_core_dev *mdev, void *vpriv)
2960 {
2961 struct mlx5e_priv *priv = vpriv;
2962 struct net_device *netdev = priv->netdev;
2963
2964 set_bit(MLX5E_STATE_DESTROYING, &priv->state);
2965
2966 schedule_work(&priv->set_rx_mode_work);
2967 mlx5e_disable_async_events(priv);
2968 flush_scheduled_work();
2969 unregister_netdev(netdev);
2970 mlx5e_tc_cleanup(priv);
2971 mlx5e_vxlan_cleanup(priv);
2972 mlx5e_destroy_q_counter(priv);
2973 mlx5e_destroy_flow_tables(priv);
2974 mlx5e_destroy_tirs(priv);
2975 mlx5e_destroy_rqt(priv, MLX5E_SINGLE_RQ_RQT);
2976 mlx5e_destroy_rqt(priv, MLX5E_INDIRECTION_RQT);
2977 mlx5e_close_drop_rq(priv);
2978 mlx5e_destroy_tises(priv);
2979 mlx5_core_destroy_mkey(priv->mdev, &priv->umr_mkey);
2980 mlx5_core_destroy_mkey(priv->mdev, &priv->mkey);
2981 mlx5_core_dealloc_transport_domain(priv->mdev, priv->tdn);
2982 mlx5_core_dealloc_pd(priv->mdev, priv->pdn);
2983 mlx5_unmap_free_uar(priv->mdev, &priv->cq_uar);
2984 free_netdev(netdev);
2985 }
2986
2987 static void *mlx5e_get_netdev(void *vpriv)
2988 {
2989 struct mlx5e_priv *priv = vpriv;
2990
2991 return priv->netdev;
2992 }
2993
2994 static struct mlx5_interface mlx5e_interface = {
2995 .add = mlx5e_create_netdev,
2996 .remove = mlx5e_destroy_netdev,
2997 .event = mlx5e_async_event,
2998 .protocol = MLX5_INTERFACE_PROTOCOL_ETH,
2999 .get_dev = mlx5e_get_netdev,
3000 };
3001
3002 void mlx5e_init(void)
3003 {
3004 mlx5_register_interface(&mlx5e_interface);
3005 }
3006
3007 void mlx5e_cleanup(void)
3008 {
3009 mlx5_unregister_interface(&mlx5e_interface);
3010 }
(deprecated) Btrfs devel tree