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net/mlx5e: Introduce create/destroy RSS indir table access functions
[deliverable/linux.git] / drivers / net / ethernet / mellanox / mlx5 / core / en_main.c
CommitLineData
f62b8bb8
AV		 1/*
2 * Copyright (c) 2015, 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 <linux/mlx5/flow_table.h>
34#include "en.h"
35
36struct mlx5e_rq_param {
37 u32 rqc[MLX5_ST_SZ_DW(rqc)];
38 struct mlx5_wq_param wq;
39};
40
41struct mlx5e_sq_param {
42 u32 sqc[MLX5_ST_SZ_DW(sqc)];
43 struct mlx5_wq_param wq;
58d52291 44 u16 max_inline;
f62b8bb8
AV		 45};
46
47struct mlx5e_cq_param {
48 u32 cqc[MLX5_ST_SZ_DW(cqc)];
49 struct mlx5_wq_param wq;
50 u16 eq_ix;
51};
52
53struct mlx5e_channel_param {
54 struct mlx5e_rq_param rq;
55 struct mlx5e_sq_param sq;
56 struct mlx5e_cq_param rx_cq;
57 struct mlx5e_cq_param tx_cq;
58};
59
60static void mlx5e_update_carrier(struct mlx5e_priv *priv)
61{
62 struct mlx5_core_dev *mdev = priv->mdev;
63 u8 port_state;
64
65 port_state = mlx5_query_vport_state(mdev,
66 MLX5_QUERY_VPORT_STATE_IN_OP_MOD_VNIC_VPORT);
67
68 if (port_state == VPORT_STATE_UP)
69 netif_carrier_on(priv->netdev);
70 else
71 netif_carrier_off(priv->netdev);
72}
73
74static void mlx5e_update_carrier_work(struct work_struct *work)
75{
76 struct mlx5e_priv *priv = container_of(work, struct mlx5e_priv,
77 update_carrier_work);
78
79 mutex_lock(&priv->state_lock);
80 if (test_bit(MLX5E_STATE_OPENED, &priv->state))
81 mlx5e_update_carrier(priv);
82 mutex_unlock(&priv->state_lock);
83}
84
85void mlx5e_update_stats(struct mlx5e_priv *priv)
86{
87 struct mlx5_core_dev *mdev = priv->mdev;
88 struct mlx5e_vport_stats *s = &priv->stats.vport;
89 struct mlx5e_rq_stats *rq_stats;
90 struct mlx5e_sq_stats *sq_stats;
91 u32 in[MLX5_ST_SZ_DW(query_vport_counter_in)];
92 u32 *out;
93 int outlen = MLX5_ST_SZ_BYTES(query_vport_counter_out);
94 u64 tx_offload_none;
95 int i, j;
96
97 out = mlx5_vzalloc(outlen);
98 if (!out)
99 return;
100
101 /* Collect firts the SW counters and then HW for consistency */
102 s->tso_packets = 0;
103 s->tso_bytes = 0;
104 s->tx_queue_stopped = 0;
105 s->tx_queue_wake = 0;
106 s->tx_queue_dropped = 0;
107 tx_offload_none = 0;
108 s->lro_packets = 0;
109 s->lro_bytes = 0;
110 s->rx_csum_none = 0;
111 s->rx_wqe_err = 0;
112 for (i = 0; i < priv->params.num_channels; i++) {
113 rq_stats = &priv->channel[i]->rq.stats;
114
115 s->lro_packets += rq_stats->lro_packets;
116 s->lro_bytes += rq_stats->lro_bytes;
117 s->rx_csum_none += rq_stats->csum_none;
118 s->rx_wqe_err += rq_stats->wqe_err;
119
a4418a6c 120 for (j = 0; j < priv->params.num_tc; j++) {
f62b8bb8
AV		 121 sq_stats = &priv->channel[i]->sq[j].stats;
122
123 s->tso_packets += sq_stats->tso_packets;
124 s->tso_bytes += sq_stats->tso_bytes;
125 s->tx_queue_stopped += sq_stats->stopped;
126 s->tx_queue_wake += sq_stats->wake;
127 s->tx_queue_dropped += sq_stats->dropped;
128 tx_offload_none += sq_stats->csum_offload_none;
129 }
130 }
131
132 /* HW counters */
133 memset(in, 0, sizeof(in));
134
135 MLX5_SET(query_vport_counter_in, in, opcode,
136 MLX5_CMD_OP_QUERY_VPORT_COUNTER);
137 MLX5_SET(query_vport_counter_in, in, op_mod, 0);
138 MLX5_SET(query_vport_counter_in, in, other_vport, 0);
139
140 memset(out, 0, outlen);
141
142 if (mlx5_cmd_exec(mdev, in, sizeof(in), out, outlen))
143 goto free_out;
144
145#define MLX5_GET_CTR(p, x) \
146 MLX5_GET64(query_vport_counter_out, p, x)
147
148 s->rx_error_packets =
149 MLX5_GET_CTR(out, received_errors.packets);
150 s->rx_error_bytes =
151 MLX5_GET_CTR(out, received_errors.octets);
152 s->tx_error_packets =
153 MLX5_GET_CTR(out, transmit_errors.packets);
154 s->tx_error_bytes =
155 MLX5_GET_CTR(out, transmit_errors.octets);
156
157 s->rx_unicast_packets =
158 MLX5_GET_CTR(out, received_eth_unicast.packets);
159 s->rx_unicast_bytes =
160 MLX5_GET_CTR(out, received_eth_unicast.octets);
161 s->tx_unicast_packets =
162 MLX5_GET_CTR(out, transmitted_eth_unicast.packets);
163 s->tx_unicast_bytes =
164 MLX5_GET_CTR(out, transmitted_eth_unicast.octets);
165
166 s->rx_multicast_packets =
167 MLX5_GET_CTR(out, received_eth_multicast.packets);
168 s->rx_multicast_bytes =
169 MLX5_GET_CTR(out, received_eth_multicast.octets);
170 s->tx_multicast_packets =
171 MLX5_GET_CTR(out, transmitted_eth_multicast.packets);
172 s->tx_multicast_bytes =
173 MLX5_GET_CTR(out, transmitted_eth_multicast.octets);
174
175 s->rx_broadcast_packets =
176 MLX5_GET_CTR(out, received_eth_broadcast.packets);
177 s->rx_broadcast_bytes =
178 MLX5_GET_CTR(out, received_eth_broadcast.octets);
179 s->tx_broadcast_packets =
180 MLX5_GET_CTR(out, transmitted_eth_broadcast.packets);
181 s->tx_broadcast_bytes =
182 MLX5_GET_CTR(out, transmitted_eth_broadcast.octets);
183
184 s->rx_packets =
185 s->rx_unicast_packets +
186 s->rx_multicast_packets +
187 s->rx_broadcast_packets;
188 s->rx_bytes =
189 s->rx_unicast_bytes +
190 s->rx_multicast_bytes +
191 s->rx_broadcast_bytes;
192 s->tx_packets =
193 s->tx_unicast_packets +
194 s->tx_multicast_packets +
195 s->tx_broadcast_packets;
196 s->tx_bytes =
197 s->tx_unicast_bytes +
198 s->tx_multicast_bytes +
199 s->tx_broadcast_bytes;
200
201 /* Update calculated offload counters */
202 s->tx_csum_offload = s->tx_packets - tx_offload_none;
203 s->rx_csum_good = s->rx_packets - s->rx_csum_none;
204
205free_out:
206 kvfree(out);
207}
208
209static void mlx5e_update_stats_work(struct work_struct *work)
210{
211 struct delayed_work *dwork = to_delayed_work(work);
212 struct mlx5e_priv *priv = container_of(dwork, struct mlx5e_priv,
213 update_stats_work);
214 mutex_lock(&priv->state_lock);
215 if (test_bit(MLX5E_STATE_OPENED, &priv->state)) {
216 mlx5e_update_stats(priv);
217 schedule_delayed_work(dwork,
218 msecs_to_jiffies(
219 MLX5E_UPDATE_STATS_INTERVAL));
220 }
221 mutex_unlock(&priv->state_lock);
222}
223
224static void __mlx5e_async_event(struct mlx5e_priv *priv,
225 enum mlx5_dev_event event)
226{
227 switch (event) {
228 case MLX5_DEV_EVENT_PORT_UP:
229 case MLX5_DEV_EVENT_PORT_DOWN:
230 schedule_work(&priv->update_carrier_work);
231 break;
232
233 default:
234 break;
235 }
236}
237
238static void mlx5e_async_event(struct mlx5_core_dev *mdev, void *vpriv,
239 enum mlx5_dev_event event, unsigned long param)
240{
241 struct mlx5e_priv *priv = vpriv;
242
243 spin_lock(&priv->async_events_spinlock);
244 if (test_bit(MLX5E_STATE_ASYNC_EVENTS_ENABLE, &priv->state))
245 __mlx5e_async_event(priv, event);
246 spin_unlock(&priv->async_events_spinlock);
247}
248
249static void mlx5e_enable_async_events(struct mlx5e_priv *priv)
250{
251 set_bit(MLX5E_STATE_ASYNC_EVENTS_ENABLE, &priv->state);
252}
253
254static void mlx5e_disable_async_events(struct mlx5e_priv *priv)
255{
256 spin_lock_irq(&priv->async_events_spinlock);
257 clear_bit(MLX5E_STATE_ASYNC_EVENTS_ENABLE, &priv->state);
258 spin_unlock_irq(&priv->async_events_spinlock);
259}
260
facc9699
SM		 261#define MLX5E_HW2SW_MTU(hwmtu) (hwmtu - (ETH_HLEN + VLAN_HLEN + ETH_FCS_LEN))
262#define MLX5E_SW2HW_MTU(swmtu) (swmtu + (ETH_HLEN + VLAN_HLEN + ETH_FCS_LEN))
263
f62b8bb8
AV		 264static int mlx5e_create_rq(struct mlx5e_channel *c,
265 struct mlx5e_rq_param *param,
266 struct mlx5e_rq *rq)
267{
268 struct mlx5e_priv *priv = c->priv;
269 struct mlx5_core_dev *mdev = priv->mdev;
270 void *rqc = param->rqc;
271 void *rqc_wq = MLX5_ADDR_OF(rqc, rqc, wq);
272 int wq_sz;
273 int err;
274 int i;
275
311c7c71
SM		 276 param->wq.db_numa_node = cpu_to_node(c->cpu);
277
f62b8bb8
AV		 278 err = mlx5_wq_ll_create(mdev, &param->wq, rqc_wq, &rq->wq,
279 &rq->wq_ctrl);
280 if (err)
281 return err;
282
283 rq->wq.db = &rq->wq.db[MLX5_RCV_DBR];
284
285 wq_sz = mlx5_wq_ll_get_size(&rq->wq);
286 rq->skb = kzalloc_node(wq_sz * sizeof(*rq->skb), GFP_KERNEL,
287 cpu_to_node(c->cpu));
288 if (!rq->skb) {
289 err = -ENOMEM;
290 goto err_rq_wq_destroy;
291 }
292
293 rq->wqe_sz = (priv->params.lro_en) ? priv->params.lro_wqe_sz :
facc9699 294 MLX5E_SW2HW_MTU(priv->netdev->mtu);
fc11fbf9 295 rq->wqe_sz = SKB_DATA_ALIGN(rq->wqe_sz + MLX5E_NET_IP_ALIGN);
f62b8bb8
AV		 296
297 for (i = 0; i < wq_sz; i++) {
298 struct mlx5e_rx_wqe *wqe = mlx5_wq_ll_get_wqe(&rq->wq, i);
fc11fbf9 299 u32 byte_count = rq->wqe_sz - MLX5E_NET_IP_ALIGN;
f62b8bb8
AV		 300
301 wqe->data.lkey = c->mkey_be;
fc11fbf9
SM		 302 wqe->data.byte_count =
303 cpu_to_be32(byte_count | MLX5_HW_START_PADDING);
f62b8bb8
AV		 304 }
305
306 rq->pdev = c->pdev;
307 rq->netdev = c->netdev;
308 rq->channel = c;
309 rq->ix = c->ix;
310
311 return 0;
312
313err_rq_wq_destroy:
314 mlx5_wq_destroy(&rq->wq_ctrl);
315
316 return err;
317}
318
319static void mlx5e_destroy_rq(struct mlx5e_rq *rq)
320{
321 kfree(rq->skb);
322 mlx5_wq_destroy(&rq->wq_ctrl);
323}
324
325static int mlx5e_enable_rq(struct mlx5e_rq *rq, struct mlx5e_rq_param *param)
326{
327 struct mlx5e_channel *c = rq->channel;
328 struct mlx5e_priv *priv = c->priv;
329 struct mlx5_core_dev *mdev = priv->mdev;
330
331 void *in;
332 void *rqc;
333 void *wq;
334 int inlen;
335 int err;
336
337 inlen = MLX5_ST_SZ_BYTES(create_rq_in) +
338 sizeof(u64) * rq->wq_ctrl.buf.npages;
339 in = mlx5_vzalloc(inlen);
340 if (!in)
341 return -ENOMEM;
342
343 rqc = MLX5_ADDR_OF(create_rq_in, in, ctx);
344 wq = MLX5_ADDR_OF(rqc, rqc, wq);
345
346 memcpy(rqc, param->rqc, sizeof(param->rqc));
347
97de9f31 348 MLX5_SET(rqc, rqc, cqn, rq->cq.mcq.cqn);
f62b8bb8
AV		 349 MLX5_SET(rqc, rqc, state, MLX5_RQC_STATE_RST);
350 MLX5_SET(rqc, rqc, flush_in_error_en, 1);
f62b8bb8 351 MLX5_SET(wq, wq, log_wq_pg_sz, rq->wq_ctrl.buf.page_shift -
68cdf5d6 352 MLX5_ADAPTER_PAGE_SHIFT);
f62b8bb8
AV		 353 MLX5_SET64(wq, wq, dbr_addr, rq->wq_ctrl.db.dma);
354
355 mlx5_fill_page_array(&rq->wq_ctrl.buf,
356 (__be64 *)MLX5_ADDR_OF(wq, wq, pas));
357
7db22ffb 358 err = mlx5_core_create_rq(mdev, in, inlen, &rq->rqn);
f62b8bb8
AV		 359
360 kvfree(in);
361
362 return err;
363}
364
365static int mlx5e_modify_rq(struct mlx5e_rq *rq, int curr_state, int next_state)
366{
367 struct mlx5e_channel *c = rq->channel;
368 struct mlx5e_priv *priv = c->priv;
369 struct mlx5_core_dev *mdev = priv->mdev;
370
371 void *in;
372 void *rqc;
373 int inlen;
374 int err;
375
376 inlen = MLX5_ST_SZ_BYTES(modify_rq_in);
377 in = mlx5_vzalloc(inlen);
378 if (!in)
379 return -ENOMEM;
380
381 rqc = MLX5_ADDR_OF(modify_rq_in, in, ctx);
382
383 MLX5_SET(modify_rq_in, in, rq_state, curr_state);
384 MLX5_SET(rqc, rqc, state, next_state);
385
7db22ffb 386 err = mlx5_core_modify_rq(mdev, rq->rqn, in, inlen);
f62b8bb8
AV		 387
388 kvfree(in);
389
390 return err;
391}
392
393static void mlx5e_disable_rq(struct mlx5e_rq *rq)
394{
395 struct mlx5e_channel *c = rq->channel;
396 struct mlx5e_priv *priv = c->priv;
397 struct mlx5_core_dev *mdev = priv->mdev;
398
7db22ffb 399 mlx5_core_destroy_rq(mdev, rq->rqn);
f62b8bb8
AV		 400}
401
402static int mlx5e_wait_for_min_rx_wqes(struct mlx5e_rq *rq)
403{
404 struct mlx5e_channel *c = rq->channel;
405 struct mlx5e_priv *priv = c->priv;
406 struct mlx5_wq_ll *wq = &rq->wq;
407 int i;
408
409 for (i = 0; i < 1000; i++) {
410 if (wq->cur_sz >= priv->params.min_rx_wqes)
411 return 0;
412
413 msleep(20);
414 }
415
416 return -ETIMEDOUT;
417}
418
419static int mlx5e_open_rq(struct mlx5e_channel *c,
420 struct mlx5e_rq_param *param,
421 struct mlx5e_rq *rq)
422{
423 int err;
424
425 err = mlx5e_create_rq(c, param, rq);
426 if (err)
427 return err;
428
429 err = mlx5e_enable_rq(rq, param);
430 if (err)
431 goto err_destroy_rq;
432
433 err = mlx5e_modify_rq(rq, MLX5_RQC_STATE_RST, MLX5_RQC_STATE_RDY);
434 if (err)
435 goto err_disable_rq;
436
437 set_bit(MLX5E_RQ_STATE_POST_WQES_ENABLE, &rq->state);
12be4b21 438 mlx5e_send_nop(&c->sq[0], true); /* trigger mlx5e_post_rx_wqes() */
f62b8bb8
AV		 439
440 return 0;
441
442err_disable_rq:
443 mlx5e_disable_rq(rq);
444err_destroy_rq:
445 mlx5e_destroy_rq(rq);
446
447 return err;
448}
449
450static void mlx5e_close_rq(struct mlx5e_rq *rq)
451{
452 clear_bit(MLX5E_RQ_STATE_POST_WQES_ENABLE, &rq->state);
453 napi_synchronize(&rq->channel->napi); /* prevent mlx5e_post_rx_wqes */
454
455 mlx5e_modify_rq(rq, MLX5_RQC_STATE_RDY, MLX5_RQC_STATE_ERR);
456 while (!mlx5_wq_ll_is_empty(&rq->wq))
457 msleep(20);
458
459 /* avoid destroying rq before mlx5e_poll_rx_cq() is done with it */
460 napi_synchronize(&rq->channel->napi);
461
462 mlx5e_disable_rq(rq);
463 mlx5e_destroy_rq(rq);
464}
465
466static void mlx5e_free_sq_db(struct mlx5e_sq *sq)
467{
468 kfree(sq->dma_fifo);
469 kfree(sq->skb);
470}
471
472static int mlx5e_alloc_sq_db(struct mlx5e_sq *sq, int numa)
473{
474 int wq_sz = mlx5_wq_cyc_get_size(&sq->wq);
475 int df_sz = wq_sz * MLX5_SEND_WQEBB_NUM_DS;
476
477 sq->skb = kzalloc_node(wq_sz * sizeof(*sq->skb), GFP_KERNEL, numa);
478 sq->dma_fifo = kzalloc_node(df_sz * sizeof(*sq->dma_fifo), GFP_KERNEL,
479 numa);
480
481 if (!sq->skb || !sq->dma_fifo) {
482 mlx5e_free_sq_db(sq);
483 return -ENOMEM;
484 }
485
486 sq->dma_fifo_mask = df_sz - 1;
487
488 return 0;
489}
490
491static int mlx5e_create_sq(struct mlx5e_channel *c,
492 int tc,
493 struct mlx5e_sq_param *param,
494 struct mlx5e_sq *sq)
495{
496 struct mlx5e_priv *priv = c->priv;
497 struct mlx5_core_dev *mdev = priv->mdev;
498
499 void *sqc = param->sqc;
500 void *sqc_wq = MLX5_ADDR_OF(sqc, sqc, wq);
03289b88 501 int txq_ix;
f62b8bb8
AV		 502 int err;
503
504 err = mlx5_alloc_map_uar(mdev, &sq->uar);
505 if (err)
506 return err;
507
311c7c71
SM		 508 param->wq.db_numa_node = cpu_to_node(c->cpu);
509
f62b8bb8
AV		 510 err = mlx5_wq_cyc_create(mdev, &param->wq, sqc_wq, &sq->wq,
511 &sq->wq_ctrl);
512 if (err)
513 goto err_unmap_free_uar;
514
515 sq->wq.db = &sq->wq.db[MLX5_SND_DBR];
516 sq->uar_map = sq->uar.map;
88a85f99 517 sq->uar_bf_map = sq->uar.bf_map;
f62b8bb8 518 sq->bf_buf_size = (1 << MLX5_CAP_GEN(mdev, log_bf_reg_size)) / 2;
58d52291 519 sq->max_inline = param->max_inline;
f62b8bb8 520
7ec0bb22
DC		 521 err = mlx5e_alloc_sq_db(sq, cpu_to_node(c->cpu));
522 if (err)
f62b8bb8
AV		 523 goto err_sq_wq_destroy;
524
03289b88
SM		 525 txq_ix = c->ix + tc * priv->params.num_channels;
526 sq->txq = netdev_get_tx_queue(priv->netdev, txq_ix);
f62b8bb8 527
88a85f99
AS		 528 sq->pdev = c->pdev;
529 sq->mkey_be = c->mkey_be;
530 sq->channel = c;
531 sq->tc = tc;
532 sq->edge = (sq->wq.sz_m1 + 1) - MLX5_SEND_WQE_MAX_WQEBBS;
533 sq->bf_budget = MLX5E_SQ_BF_BUDGET;
03289b88 534 priv->txq_to_sq_map[txq_ix] = sq;
f62b8bb8
AV		 535
536 return 0;
537
538err_sq_wq_destroy:
539 mlx5_wq_destroy(&sq->wq_ctrl);
540
541err_unmap_free_uar:
542 mlx5_unmap_free_uar(mdev, &sq->uar);
543
544 return err;
545}
546
547static void mlx5e_destroy_sq(struct mlx5e_sq *sq)
548{
549 struct mlx5e_channel *c = sq->channel;
550 struct mlx5e_priv *priv = c->priv;
551
552 mlx5e_free_sq_db(sq);
553 mlx5_wq_destroy(&sq->wq_ctrl);
554 mlx5_unmap_free_uar(priv->mdev, &sq->uar);
555}
556
557static int mlx5e_enable_sq(struct mlx5e_sq *sq, struct mlx5e_sq_param *param)
558{
559 struct mlx5e_channel *c = sq->channel;
560 struct mlx5e_priv *priv = c->priv;
561 struct mlx5_core_dev *mdev = priv->mdev;
562
563 void *in;
564 void *sqc;
565 void *wq;
566 int inlen;
567 int err;
568
569 inlen = MLX5_ST_SZ_BYTES(create_sq_in) +
570 sizeof(u64) * sq->wq_ctrl.buf.npages;
571 in = mlx5_vzalloc(inlen);
572 if (!in)
573 return -ENOMEM;
574
575 sqc = MLX5_ADDR_OF(create_sq_in, in, ctx);
576 wq = MLX5_ADDR_OF(sqc, sqc, wq);
577
578 memcpy(sqc, param->sqc, sizeof(param->sqc));
579
f62b8bb8
AV		 580 MLX5_SET(sqc, sqc, tis_num_0, priv->tisn[sq->tc]);
581 MLX5_SET(sqc, sqc, cqn, c->sq[sq->tc].cq.mcq.cqn);
582 MLX5_SET(sqc, sqc, state, MLX5_SQC_STATE_RST);
583 MLX5_SET(sqc, sqc, tis_lst_sz, 1);
584 MLX5_SET(sqc, sqc, flush_in_error_en, 1);
585
586 MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_CYCLIC);
587 MLX5_SET(wq, wq, uar_page, sq->uar.index);
588 MLX5_SET(wq, wq, log_wq_pg_sz, sq->wq_ctrl.buf.page_shift -
68cdf5d6 589 MLX5_ADAPTER_PAGE_SHIFT);
f62b8bb8
AV		 590 MLX5_SET64(wq, wq, dbr_addr, sq->wq_ctrl.db.dma);
591
592 mlx5_fill_page_array(&sq->wq_ctrl.buf,
593 (__be64 *)MLX5_ADDR_OF(wq, wq, pas));
594
7db22ffb 595 err = mlx5_core_create_sq(mdev, in, inlen, &sq->sqn);
f62b8bb8
AV		 596
597 kvfree(in);
598
599 return err;
600}
601
602static int mlx5e_modify_sq(struct mlx5e_sq *sq, int curr_state, int next_state)
603{
604 struct mlx5e_channel *c = sq->channel;
605 struct mlx5e_priv *priv = c->priv;
606 struct mlx5_core_dev *mdev = priv->mdev;
607
608 void *in;
609 void *sqc;
610 int inlen;
611 int err;
612
613 inlen = MLX5_ST_SZ_BYTES(modify_sq_in);
614 in = mlx5_vzalloc(inlen);
615 if (!in)
616 return -ENOMEM;
617
618 sqc = MLX5_ADDR_OF(modify_sq_in, in, ctx);
619
620 MLX5_SET(modify_sq_in, in, sq_state, curr_state);
621 MLX5_SET(sqc, sqc, state, next_state);
622
7db22ffb 623 err = mlx5_core_modify_sq(mdev, sq->sqn, in, inlen);
f62b8bb8
AV		 624
625 kvfree(in);
626
627 return err;
628}
629
630static void mlx5e_disable_sq(struct mlx5e_sq *sq)
631{
632 struct mlx5e_channel *c = sq->channel;
633 struct mlx5e_priv *priv = c->priv;
634 struct mlx5_core_dev *mdev = priv->mdev;
635
7db22ffb 636 mlx5_core_destroy_sq(mdev, sq->sqn);
f62b8bb8
AV		 637}
638
639static int mlx5e_open_sq(struct mlx5e_channel *c,
640 int tc,
641 struct mlx5e_sq_param *param,
642 struct mlx5e_sq *sq)
643{
644 int err;
645
646 err = mlx5e_create_sq(c, tc, param, sq);
647 if (err)
648 return err;
649
650 err = mlx5e_enable_sq(sq, param);
651 if (err)
652 goto err_destroy_sq;
653
654 err = mlx5e_modify_sq(sq, MLX5_SQC_STATE_RST, MLX5_SQC_STATE_RDY);
655 if (err)
656 goto err_disable_sq;
657
658 set_bit(MLX5E_SQ_STATE_WAKE_TXQ_ENABLE, &sq->state);
659 netdev_tx_reset_queue(sq->txq);
660 netif_tx_start_queue(sq->txq);
661
662 return 0;
663
664err_disable_sq:
665 mlx5e_disable_sq(sq);
666err_destroy_sq:
667 mlx5e_destroy_sq(sq);
668
669 return err;
670}
671
672static inline void netif_tx_disable_queue(struct netdev_queue *txq)
673{
674 __netif_tx_lock_bh(txq);
675 netif_tx_stop_queue(txq);
676 __netif_tx_unlock_bh(txq);
677}
678
679static void mlx5e_close_sq(struct mlx5e_sq *sq)
680{
681 clear_bit(MLX5E_SQ_STATE_WAKE_TXQ_ENABLE, &sq->state);
682 napi_synchronize(&sq->channel->napi); /* prevent netif_tx_wake_queue */
683 netif_tx_disable_queue(sq->txq);
684
685 /* ensure hw is notified of all pending wqes */
686 if (mlx5e_sq_has_room_for(sq, 1))
12be4b21 687 mlx5e_send_nop(sq, true);
f62b8bb8
AV		 688
689 mlx5e_modify_sq(sq, MLX5_SQC_STATE_RDY, MLX5_SQC_STATE_ERR);
690 while (sq->cc != sq->pc) /* wait till sq is empty */
691 msleep(20);
692
693 /* avoid destroying sq before mlx5e_poll_tx_cq() is done with it */
694 napi_synchronize(&sq->channel->napi);
695
696 mlx5e_disable_sq(sq);
697 mlx5e_destroy_sq(sq);
698}
699
700static int mlx5e_create_cq(struct mlx5e_channel *c,
701 struct mlx5e_cq_param *param,
702 struct mlx5e_cq *cq)
703{
704 struct mlx5e_priv *priv = c->priv;
705 struct mlx5_core_dev *mdev = priv->mdev;
706 struct mlx5_core_cq *mcq = &cq->mcq;
707 int eqn_not_used;
708 int irqn;
709 int err;
710 u32 i;
711
311c7c71
SM		 712 param->wq.buf_numa_node = cpu_to_node(c->cpu);
713 param->wq.db_numa_node = cpu_to_node(c->cpu);
f62b8bb8
AV		 714 param->eq_ix = c->ix;
715
716 err = mlx5_cqwq_create(mdev, &param->wq, param->cqc, &cq->wq,
717 &cq->wq_ctrl);
718 if (err)
719 return err;
720
721 mlx5_vector2eqn(mdev, param->eq_ix, &eqn_not_used, &irqn);
722
723 cq->napi = &c->napi;
724
725 mcq->cqe_sz = 64;
726 mcq->set_ci_db = cq->wq_ctrl.db.db;
727 mcq->arm_db = cq->wq_ctrl.db.db + 1;
728 *mcq->set_ci_db = 0;
729 *mcq->arm_db = 0;
730 mcq->vector = param->eq_ix;
731 mcq->comp = mlx5e_completion_event;
732 mcq->event = mlx5e_cq_error_event;
733 mcq->irqn = irqn;
734 mcq->uar = &priv->cq_uar;
735
736 for (i = 0; i < mlx5_cqwq_get_size(&cq->wq); i++) {
737 struct mlx5_cqe64 *cqe = mlx5_cqwq_get_wqe(&cq->wq, i);
738
739 cqe->op_own = 0xf1;
740 }
741
742 cq->channel = c;
743
744 return 0;
745}
746
747static void mlx5e_destroy_cq(struct mlx5e_cq *cq)
748{
749 mlx5_wq_destroy(&cq->wq_ctrl);
750}
751
752static int mlx5e_enable_cq(struct mlx5e_cq *cq, struct mlx5e_cq_param *param)
753{
754 struct mlx5e_channel *c = cq->channel;
755 struct mlx5e_priv *priv = c->priv;
756 struct mlx5_core_dev *mdev = priv->mdev;
757 struct mlx5_core_cq *mcq = &cq->mcq;
758
759 void *in;
760 void *cqc;
761 int inlen;
762 int irqn_not_used;
763 int eqn;
764 int err;
765
766 inlen = MLX5_ST_SZ_BYTES(create_cq_in) +
767 sizeof(u64) * cq->wq_ctrl.buf.npages;
768 in = mlx5_vzalloc(inlen);
769 if (!in)
770 return -ENOMEM;
771
772 cqc = MLX5_ADDR_OF(create_cq_in, in, cq_context);
773
774 memcpy(cqc, param->cqc, sizeof(param->cqc));
775
776 mlx5_fill_page_array(&cq->wq_ctrl.buf,
777 (__be64 *)MLX5_ADDR_OF(create_cq_in, in, pas));
778
779 mlx5_vector2eqn(mdev, param->eq_ix, &eqn, &irqn_not_used);
780
781 MLX5_SET(cqc, cqc, c_eqn, eqn);
782 MLX5_SET(cqc, cqc, uar_page, mcq->uar->index);
783 MLX5_SET(cqc, cqc, log_page_size, cq->wq_ctrl.buf.page_shift -
68cdf5d6 784 MLX5_ADAPTER_PAGE_SHIFT);
f62b8bb8
AV		 785 MLX5_SET64(cqc, cqc, dbr_addr, cq->wq_ctrl.db.dma);
786
787 err = mlx5_core_create_cq(mdev, mcq, in, inlen);
788
789 kvfree(in);
790
791 if (err)
792 return err;
793
794 mlx5e_cq_arm(cq);
795
796 return 0;
797}
798
799static void mlx5e_disable_cq(struct mlx5e_cq *cq)
800{
801 struct mlx5e_channel *c = cq->channel;
802 struct mlx5e_priv *priv = c->priv;
803 struct mlx5_core_dev *mdev = priv->mdev;
804
805 mlx5_core_destroy_cq(mdev, &cq->mcq);
806}
807
808static int mlx5e_open_cq(struct mlx5e_channel *c,
809 struct mlx5e_cq_param *param,
810 struct mlx5e_cq *cq,
811 u16 moderation_usecs,
812 u16 moderation_frames)
813{
814 int err;
815 struct mlx5e_priv *priv = c->priv;
816 struct mlx5_core_dev *mdev = priv->mdev;
817
818 err = mlx5e_create_cq(c, param, cq);
819 if (err)
820 return err;
821
822 err = mlx5e_enable_cq(cq, param);
823 if (err)
824 goto err_destroy_cq;
825
826 err = mlx5_core_modify_cq_moderation(mdev, &cq->mcq,
827 moderation_usecs,
828 moderation_frames);
829 if (err)
830 goto err_destroy_cq;
831
832 return 0;
833
834err_destroy_cq:
835 mlx5e_destroy_cq(cq);
836
837 return err;
838}
839
840static void mlx5e_close_cq(struct mlx5e_cq *cq)
841{
842 mlx5e_disable_cq(cq);
843 mlx5e_destroy_cq(cq);
844}
845
846static int mlx5e_get_cpu(struct mlx5e_priv *priv, int ix)
847{
848 return cpumask_first(priv->mdev->priv.irq_info[ix].mask);
849}
850
851static int mlx5e_open_tx_cqs(struct mlx5e_channel *c,
852 struct mlx5e_channel_param *cparam)
853{
854 struct mlx5e_priv *priv = c->priv;
855 int err;
856 int tc;
857
858 for (tc = 0; tc < c->num_tc; tc++) {
859 err = mlx5e_open_cq(c, &cparam->tx_cq, &c->sq[tc].cq,
860 priv->params.tx_cq_moderation_usec,
861 priv->params.tx_cq_moderation_pkts);
862 if (err)
863 goto err_close_tx_cqs;
f62b8bb8
AV		 864 }
865
866 return 0;
867
868err_close_tx_cqs:
869 for (tc--; tc >= 0; tc--)
870 mlx5e_close_cq(&c->sq[tc].cq);
871
872 return err;
873}
874
875static void mlx5e_close_tx_cqs(struct mlx5e_channel *c)
876{
877 int tc;
878
879 for (tc = 0; tc < c->num_tc; tc++)
880 mlx5e_close_cq(&c->sq[tc].cq);
881}
882
883static int mlx5e_open_sqs(struct mlx5e_channel *c,
884 struct mlx5e_channel_param *cparam)
885{
886 int err;
887 int tc;
888
889 for (tc = 0; tc < c->num_tc; tc++) {
890 err = mlx5e_open_sq(c, tc, &cparam->sq, &c->sq[tc]);
891 if (err)
892 goto err_close_sqs;
893 }
894
895 return 0;
896
897err_close_sqs:
898 for (tc--; tc >= 0; tc--)
899 mlx5e_close_sq(&c->sq[tc]);
900
901 return err;
902}
903
904static void mlx5e_close_sqs(struct mlx5e_channel *c)
905{
906 int tc;
907
908 for (tc = 0; tc < c->num_tc; tc++)
909 mlx5e_close_sq(&c->sq[tc]);
910}
911
03289b88
SM		 912static void mlx5e_build_tc_to_txq_map(struct mlx5e_channel *c,
913 int num_channels)
914{
915 int i;
916
917 for (i = 0; i < MLX5E_MAX_NUM_TC; i++)
918 c->tc_to_txq_map[i] = c->ix + i * num_channels;
919}
920
f62b8bb8
AV		 921static int mlx5e_open_channel(struct mlx5e_priv *priv, int ix,
922 struct mlx5e_channel_param *cparam,
923 struct mlx5e_channel **cp)
924{
925 struct net_device *netdev = priv->netdev;
926 int cpu = mlx5e_get_cpu(priv, ix);
927 struct mlx5e_channel *c;
928 int err;
929
930 c = kzalloc_node(sizeof(*c), GFP_KERNEL, cpu_to_node(cpu));
931 if (!c)
932 return -ENOMEM;
933
934 c->priv = priv;
935 c->ix = ix;
936 c->cpu = cpu;
937 c->pdev = &priv->mdev->pdev->dev;
938 c->netdev = priv->netdev;
939 c->mkey_be = cpu_to_be32(priv->mr.key);
a4418a6c 940 c->num_tc = priv->params.num_tc;
f62b8bb8 941
03289b88
SM		 942 mlx5e_build_tc_to_txq_map(c, priv->params.num_channels);
943
f62b8bb8
AV		 944 netif_napi_add(netdev, &c->napi, mlx5e_napi_poll, 64);
945
946 err = mlx5e_open_tx_cqs(c, cparam);
947 if (err)
948 goto err_napi_del;
949
950 err = mlx5e_open_cq(c, &cparam->rx_cq, &c->rq.cq,
951 priv->params.rx_cq_moderation_usec,
952 priv->params.rx_cq_moderation_pkts);
953 if (err)
954 goto err_close_tx_cqs;
f62b8bb8
AV		 955
956 napi_enable(&c->napi);
957
958 err = mlx5e_open_sqs(c, cparam);
959 if (err)
960 goto err_disable_napi;
961
962 err = mlx5e_open_rq(c, &cparam->rq, &c->rq);
963 if (err)
964 goto err_close_sqs;
965
966 netif_set_xps_queue(netdev, get_cpu_mask(c->cpu), ix);
967 *cp = c;
968
969 return 0;
970
971err_close_sqs:
972 mlx5e_close_sqs(c);
973
974err_disable_napi:
975 napi_disable(&c->napi);
976 mlx5e_close_cq(&c->rq.cq);
977
978err_close_tx_cqs:
979 mlx5e_close_tx_cqs(c);
980
981err_napi_del:
982 netif_napi_del(&c->napi);
983 kfree(c);
984
985 return err;
986}
987
988static void mlx5e_close_channel(struct mlx5e_channel *c)
989{
990 mlx5e_close_rq(&c->rq);
991 mlx5e_close_sqs(c);
992 napi_disable(&c->napi);
993 mlx5e_close_cq(&c->rq.cq);
994 mlx5e_close_tx_cqs(c);
995 netif_napi_del(&c->napi);
996 kfree(c);
997}
998
999static void mlx5e_build_rq_param(struct mlx5e_priv *priv,
1000 struct mlx5e_rq_param *param)
1001{
1002 void *rqc = param->rqc;
1003 void *wq = MLX5_ADDR_OF(rqc, rqc, wq);
1004
1005 MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_LINKED_LIST);
1006 MLX5_SET(wq, wq, end_padding_mode, MLX5_WQ_END_PAD_MODE_ALIGN);
1007 MLX5_SET(wq, wq, log_wq_stride, ilog2(sizeof(struct mlx5e_rx_wqe)));
1008 MLX5_SET(wq, wq, log_wq_sz, priv->params.log_rq_size);
1009 MLX5_SET(wq, wq, pd, priv->pdn);
1010
311c7c71 1011 param->wq.buf_numa_node = dev_to_node(&priv->mdev->pdev->dev);
f62b8bb8
AV		 1012 param->wq.linear = 1;
1013}
1014
1015static void mlx5e_build_sq_param(struct mlx5e_priv *priv,
1016 struct mlx5e_sq_param *param)
1017{
1018 void *sqc = param->sqc;
1019 void *wq = MLX5_ADDR_OF(sqc, sqc, wq);
1020
1021 MLX5_SET(wq, wq, log_wq_sz, priv->params.log_sq_size);
1022 MLX5_SET(wq, wq, log_wq_stride, ilog2(MLX5_SEND_WQE_BB));
1023 MLX5_SET(wq, wq, pd, priv->pdn);
1024
311c7c71 1025 param->wq.buf_numa_node = dev_to_node(&priv->mdev->pdev->dev);
58d52291 1026 param->max_inline = priv->params.tx_max_inline;
f62b8bb8
AV		 1027}
1028
1029static void mlx5e_build_common_cq_param(struct mlx5e_priv *priv,
1030 struct mlx5e_cq_param *param)
1031{
1032 void *cqc = param->cqc;
1033
1034 MLX5_SET(cqc, cqc, uar_page, priv->cq_uar.index);
1035}
1036
1037static void mlx5e_build_rx_cq_param(struct mlx5e_priv *priv,
1038 struct mlx5e_cq_param *param)
1039{
1040 void *cqc = param->cqc;
1041
1042 MLX5_SET(cqc, cqc, log_cq_size, priv->params.log_rq_size);
1043
1044 mlx5e_build_common_cq_param(priv, param);
1045}
1046
1047static void mlx5e_build_tx_cq_param(struct mlx5e_priv *priv,
1048 struct mlx5e_cq_param *param)
1049{
1050 void *cqc = param->cqc;
1051
1052 MLX5_SET(cqc, cqc, log_cq_size, priv->params.log_sq_size);
1053
1054 mlx5e_build_common_cq_param(priv, param);
1055}
1056
1057static void mlx5e_build_channel_param(struct mlx5e_priv *priv,
1058 struct mlx5e_channel_param *cparam)
1059{
1060 memset(cparam, 0, sizeof(*cparam));
1061
1062 mlx5e_build_rq_param(priv, &cparam->rq);
1063 mlx5e_build_sq_param(priv, &cparam->sq);
1064 mlx5e_build_rx_cq_param(priv, &cparam->rx_cq);
1065 mlx5e_build_tx_cq_param(priv, &cparam->tx_cq);
1066}
1067
1068static int mlx5e_open_channels(struct mlx5e_priv *priv)
1069{
1070 struct mlx5e_channel_param cparam;
a4418a6c 1071 int nch = priv->params.num_channels;
03289b88 1072 int err = -ENOMEM;
f62b8bb8
AV		 1073 int i;
1074 int j;
1075
a4418a6c
AS		 1076 priv->channel = kcalloc(nch, sizeof(struct mlx5e_channel *),
1077 GFP_KERNEL);
03289b88 1078
a4418a6c 1079 priv->txq_to_sq_map = kcalloc(nch * priv->params.num_tc,
03289b88
SM		 1080 sizeof(struct mlx5e_sq *), GFP_KERNEL);
1081
1082 if (!priv->channel || !priv->txq_to_sq_map)
1083 goto err_free_txq_to_sq_map;
f62b8bb8
AV		 1084
1085 mlx5e_build_channel_param(priv, &cparam);
a4418a6c 1086 for (i = 0; i < nch; i++) {
f62b8bb8
AV		 1087 err = mlx5e_open_channel(priv, i, &cparam, &priv->channel[i]);
1088 if (err)
1089 goto err_close_channels;
1090 }
1091
a4418a6c 1092 for (j = 0; j < nch; j++) {
f62b8bb8
AV		 1093 err = mlx5e_wait_for_min_rx_wqes(&priv->channel[j]->rq);
1094 if (err)
1095 goto err_close_channels;
1096 }
1097
1098 return 0;
1099
1100err_close_channels:
1101 for (i--; i >= 0; i--)
1102 mlx5e_close_channel(priv->channel[i]);
1103
03289b88
SM		 1104err_free_txq_to_sq_map:
1105 kfree(priv->txq_to_sq_map);
f62b8bb8
AV		 1106 kfree(priv->channel);
1107
1108 return err;
1109}
1110
1111static void mlx5e_close_channels(struct mlx5e_priv *priv)
1112{
1113 int i;
1114
1115 for (i = 0; i < priv->params.num_channels; i++)
1116 mlx5e_close_channel(priv->channel[i]);
1117
03289b88 1118 kfree(priv->txq_to_sq_map);
f62b8bb8
AV		 1119 kfree(priv->channel);
1120}
1121
1122static int mlx5e_open_tis(struct mlx5e_priv *priv, int tc)
1123{
1124 struct mlx5_core_dev *mdev = priv->mdev;
1125 u32 in[MLX5_ST_SZ_DW(create_tis_in)];
1126 void *tisc = MLX5_ADDR_OF(create_tis_in, in, ctx);
1127
1128 memset(in, 0, sizeof(in));
1129
1130 MLX5_SET(tisc, tisc, prio, tc);
3191e05f 1131 MLX5_SET(tisc, tisc, transport_domain, priv->tdn);
f62b8bb8 1132
7db22ffb 1133 return mlx5_core_create_tis(mdev, in, sizeof(in), &priv->tisn[tc]);
f62b8bb8
AV		 1134}
1135
1136static void mlx5e_close_tis(struct mlx5e_priv *priv, int tc)
1137{
7db22ffb 1138 mlx5_core_destroy_tis(priv->mdev, priv->tisn[tc]);
f62b8bb8
AV		 1139}
1140
1141static int mlx5e_open_tises(struct mlx5e_priv *priv)
1142{
f62b8bb8
AV		 1143 int err;
1144 int tc;
1145
a4418a6c 1146 for (tc = 0; tc < priv->params.num_tc; tc++) {
f62b8bb8
AV		 1147 err = mlx5e_open_tis(priv, tc);
1148 if (err)
1149 goto err_close_tises;
1150 }
1151
1152 return 0;
1153
1154err_close_tises:
1155 for (tc--; tc >= 0; tc--)
1156 mlx5e_close_tis(priv, tc);
1157
1158 return err;
1159}
1160
1161static void mlx5e_close_tises(struct mlx5e_priv *priv)
1162{
f62b8bb8
AV		 1163 int tc;
1164
a4418a6c 1165 for (tc = 0; tc < priv->params.num_tc; tc++)
f62b8bb8
AV		 1166 mlx5e_close_tis(priv, tc);
1167}
1168
2be6967c
SM		 1169static int mlx5e_rx_hash_fn(int hfunc)
1170{
1171 return (hfunc == ETH_RSS_HASH_TOP) ?
1172 MLX5_RX_HASH_FN_TOEPLITZ :
1173 MLX5_RX_HASH_FN_INVERTED_XOR8;
1174}
1175
1176static int mlx5e_bits_invert(unsigned long a, int size)
1177{
1178 int inv = 0;
1179 int i;
1180
1181 for (i = 0; i < size; i++)
1182 inv |= (test_bit(size - i - 1, &a) ? 1 : 0) << i;
1183
1184 return inv;
1185}
1186
f62b8bb8
AV		 1187static int mlx5e_open_rqt(struct mlx5e_priv *priv)
1188{
1189 struct mlx5_core_dev *mdev = priv->mdev;
1190 u32 *in;
f62b8bb8
AV		 1191 void *rqtc;
1192 int inlen;
1193 int err;
2be6967c
SM		 1194 int log_tbl_sz = priv->params.rx_hash_log_tbl_sz;
1195 int sz = 1 << log_tbl_sz;
f62b8bb8
AV		 1196 int i;
1197
f62b8bb8
AV		 1198 inlen = MLX5_ST_SZ_BYTES(create_rqt_in) + sizeof(u32) * sz;
1199 in = mlx5_vzalloc(inlen);
1200 if (!in)
1201 return -ENOMEM;
1202
1203 rqtc = MLX5_ADDR_OF(create_rqt_in, in, rqt_context);
1204
1205 MLX5_SET(rqtc, rqtc, rqt_actual_size, sz);
1206 MLX5_SET(rqtc, rqtc, rqt_max_size, sz);
1207
1208 for (i = 0; i < sz; i++) {
2be6967c
SM		 1209 int ix = i;
1210
1211 if (priv->params.rss_hfunc == ETH_RSS_HASH_XOR)
1212 ix = mlx5e_bits_invert(i, log_tbl_sz);
f62b8bb8 1213
2be6967c 1214 ix = ix % priv->params.num_channels;
f62b8bb8
AV		 1215 MLX5_SET(rqtc, rqtc, rq_num[i], priv->channel[ix]->rq.rqn);
1216 }
1217
1fc22739 1218 err = mlx5_core_create_rqt(mdev, in, inlen, &priv->rqtn);
f62b8bb8
AV		 1219
1220 kvfree(in);
1221
1222 return err;
1223}
1224
1225static void mlx5e_close_rqt(struct mlx5e_priv *priv)
1226{
1fc22739 1227 mlx5_core_destroy_rqt(priv->mdev, priv->rqtn);
f62b8bb8
AV		 1228}
1229
1230static void mlx5e_build_tir_ctx(struct mlx5e_priv *priv, u32 *tirc, int tt)
1231{
1232 void *hfso = MLX5_ADDR_OF(tirc, tirc, rx_hash_field_selector_outer);
1233
3191e05f
AS		 1234 MLX5_SET(tirc, tirc, transport_domain, priv->tdn);
1235
f62b8bb8
AV		 1236#define ROUGH_MAX_L2_L3_HDR_SZ 256
1237
5a6f8aef
AS		 1238#define MLX5_HASH_IP (MLX5_HASH_FIELD_SEL_SRC_IP |\
1239 MLX5_HASH_FIELD_SEL_DST_IP)
f62b8bb8 1240
5a6f8aef
AS		 1241#define MLX5_HASH_IP_L4PORTS (MLX5_HASH_FIELD_SEL_SRC_IP |\
1242 MLX5_HASH_FIELD_SEL_DST_IP |\
1243 MLX5_HASH_FIELD_SEL_L4_SPORT |\
1244 MLX5_HASH_FIELD_SEL_L4_DPORT)
f62b8bb8 1245
a741749f
AS		 1246#define MLX5_HASH_IP_IPSEC_SPI (MLX5_HASH_FIELD_SEL_SRC_IP |\
1247 MLX5_HASH_FIELD_SEL_DST_IP |\
1248 MLX5_HASH_FIELD_SEL_IPSEC_SPI)
1249
f62b8bb8
AV		 1250 if (priv->params.lro_en) {
1251 MLX5_SET(tirc, tirc, lro_enable_mask,
1252 MLX5_TIRC_LRO_ENABLE_MASK_IPV4_LRO |
1253 MLX5_TIRC_LRO_ENABLE_MASK_IPV6_LRO);
1254 MLX5_SET(tirc, tirc, lro_max_ip_payload_size,
1255 (priv->params.lro_wqe_sz -
1256 ROUGH_MAX_L2_L3_HDR_SZ) >> 8);
1257 MLX5_SET(tirc, tirc, lro_timeout_period_usecs,
1258 MLX5_CAP_ETH(priv->mdev,
1259 lro_timer_supported_periods[3]));
1260 }
1261
1262 switch (tt) {
1263 case MLX5E_TT_ANY:
1264 MLX5_SET(tirc, tirc, disp_type,
1265 MLX5_TIRC_DISP_TYPE_DIRECT);
1266 MLX5_SET(tirc, tirc, inline_rqn,
1267 priv->channel[0]->rq.rqn);
1268 break;
1269 default:
1270 MLX5_SET(tirc, tirc, disp_type,
1271 MLX5_TIRC_DISP_TYPE_INDIRECT);
1272 MLX5_SET(tirc, tirc, indirect_table,
1273 priv->rqtn);
1274 MLX5_SET(tirc, tirc, rx_hash_fn,
2be6967c
SM		 1275 mlx5e_rx_hash_fn(priv->params.rss_hfunc));
1276 if (priv->params.rss_hfunc == ETH_RSS_HASH_TOP) {
1277 void *rss_key = MLX5_ADDR_OF(tirc, tirc,
1278 rx_hash_toeplitz_key);
1279 size_t len = MLX5_FLD_SZ_BYTES(tirc,
1280 rx_hash_toeplitz_key);
1281
1282 MLX5_SET(tirc, tirc, rx_hash_symmetric, 1);
1283 netdev_rss_key_fill(rss_key, len);
1284 }
f62b8bb8
AV		 1285 break;
1286 }
1287
1288 switch (tt) {
1289 case MLX5E_TT_IPV4_TCP:
1290 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
1291 MLX5_L3_PROT_TYPE_IPV4);
1292 MLX5_SET(rx_hash_field_select, hfso, l4_prot_type,
1293 MLX5_L4_PROT_TYPE_TCP);
1294 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
5a6f8aef 1295 MLX5_HASH_IP_L4PORTS);
f62b8bb8
AV		 1296 break;
1297
1298 case MLX5E_TT_IPV6_TCP:
1299 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
1300 MLX5_L3_PROT_TYPE_IPV6);
1301 MLX5_SET(rx_hash_field_select, hfso, l4_prot_type,
1302 MLX5_L4_PROT_TYPE_TCP);
1303 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
5a6f8aef 1304 MLX5_HASH_IP_L4PORTS);
f62b8bb8
AV		 1305 break;
1306
1307 case MLX5E_TT_IPV4_UDP:
1308 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
1309 MLX5_L3_PROT_TYPE_IPV4);
1310 MLX5_SET(rx_hash_field_select, hfso, l4_prot_type,
1311 MLX5_L4_PROT_TYPE_UDP);
1312 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
5a6f8aef 1313 MLX5_HASH_IP_L4PORTS);
f62b8bb8
AV		 1314 break;
1315
1316 case MLX5E_TT_IPV6_UDP:
1317 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
1318 MLX5_L3_PROT_TYPE_IPV6);
1319 MLX5_SET(rx_hash_field_select, hfso, l4_prot_type,
1320 MLX5_L4_PROT_TYPE_UDP);
1321 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
5a6f8aef 1322 MLX5_HASH_IP_L4PORTS);
f62b8bb8
AV		 1323 break;
1324
a741749f
AS		 1325 case MLX5E_TT_IPV4_IPSEC_AH:
1326 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
1327 MLX5_L3_PROT_TYPE_IPV4);
1328 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
1329 MLX5_HASH_IP_IPSEC_SPI);
1330 break;
1331
1332 case MLX5E_TT_IPV6_IPSEC_AH:
1333 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
1334 MLX5_L3_PROT_TYPE_IPV6);
1335 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
1336 MLX5_HASH_IP_IPSEC_SPI);
1337 break;
1338
1339 case MLX5E_TT_IPV4_IPSEC_ESP:
1340 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
1341 MLX5_L3_PROT_TYPE_IPV4);
1342 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
1343 MLX5_HASH_IP_IPSEC_SPI);
1344 break;
1345
1346 case MLX5E_TT_IPV6_IPSEC_ESP:
1347 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
1348 MLX5_L3_PROT_TYPE_IPV6);
1349 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
1350 MLX5_HASH_IP_IPSEC_SPI);
1351 break;
1352
f62b8bb8
AV		 1353 case MLX5E_TT_IPV4:
1354 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
1355 MLX5_L3_PROT_TYPE_IPV4);
1356 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
1357 MLX5_HASH_IP);
1358 break;
1359
1360 case MLX5E_TT_IPV6:
1361 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
1362 MLX5_L3_PROT_TYPE_IPV6);
1363 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
1364 MLX5_HASH_IP);
1365 break;
1366 }
1367}
1368
1369static int mlx5e_open_tir(struct mlx5e_priv *priv, int tt)
1370{
1371 struct mlx5_core_dev *mdev = priv->mdev;
1372 u32 *in;
1373 void *tirc;
1374 int inlen;
1375 int err;
1376
1377 inlen = MLX5_ST_SZ_BYTES(create_tir_in);
1378 in = mlx5_vzalloc(inlen);
1379 if (!in)
1380 return -ENOMEM;
1381
1382 tirc = MLX5_ADDR_OF(create_tir_in, in, ctx);
1383
1384 mlx5e_build_tir_ctx(priv, tirc, tt);
1385
7db22ffb 1386 err = mlx5_core_create_tir(mdev, in, inlen, &priv->tirn[tt]);
f62b8bb8
AV		 1387
1388 kvfree(in);
1389
1390 return err;
1391}
1392
1393static void mlx5e_close_tir(struct mlx5e_priv *priv, int tt)
1394{
7db22ffb 1395 mlx5_core_destroy_tir(priv->mdev, priv->tirn[tt]);
f62b8bb8
AV		 1396}
1397
1398static int mlx5e_open_tirs(struct mlx5e_priv *priv)
1399{
1400 int err;
1401 int i;
1402
1403 for (i = 0; i < MLX5E_NUM_TT; i++) {
1404 err = mlx5e_open_tir(priv, i);
1405 if (err)
1406 goto err_close_tirs;
1407 }
1408
1409 return 0;
1410
1411err_close_tirs:
1412 for (i--; i >= 0; i--)
1413 mlx5e_close_tir(priv, i);
1414
1415 return err;
1416}
1417
1418static void mlx5e_close_tirs(struct mlx5e_priv *priv)
1419{
1420 int i;
1421
1422 for (i = 0; i < MLX5E_NUM_TT; i++)
1423 mlx5e_close_tir(priv, i);
1424}
1425
facc9699 1426static int mlx5e_set_dev_port_mtu(struct net_device *netdev)
f62b8bb8
AV		 1427{
1428 struct mlx5e_priv *priv = netdev_priv(netdev);
1429 struct mlx5_core_dev *mdev = priv->mdev;
facc9699
SM		 1430 int hw_mtu;
1431 int err;
1432
1433 err = mlx5_set_port_mtu(mdev, MLX5E_SW2HW_MTU(netdev->mtu), 1);
1434 if (err)
1435 return err;
1436
1437 mlx5_query_port_oper_mtu(mdev, &hw_mtu, 1);
1438
1439 if (MLX5E_HW2SW_MTU(hw_mtu) != netdev->mtu)
1440 netdev_warn(netdev, "%s: Port MTU %d is different than netdev mtu %d\n",
1441 __func__, MLX5E_HW2SW_MTU(hw_mtu), netdev->mtu);
1442
1443 netdev->mtu = MLX5E_HW2SW_MTU(hw_mtu);
1444 return 0;
1445}
1446
1447int mlx5e_open_locked(struct net_device *netdev)
1448{
1449 struct mlx5e_priv *priv = netdev_priv(netdev);
f62b8bb8
AV		 1450 int num_txqs;
1451 int err;
1452
03289b88 1453 num_txqs = priv->params.num_channels * priv->params.num_tc;
f62b8bb8
AV		 1454 netif_set_real_num_tx_queues(netdev, num_txqs);
1455 netif_set_real_num_rx_queues(netdev, priv->params.num_channels);
1456
facc9699
SM		 1457 err = mlx5e_set_dev_port_mtu(netdev);
1458 if (err)
f62b8bb8 1459 return err;
f62b8bb8
AV		 1460
1461 err = mlx5e_open_tises(priv);
1462 if (err) {
1463 netdev_err(netdev, "%s: mlx5e_open_tises failed, %d\n",
1464 __func__, err);
1465 return err;
1466 }
1467
1468 err = mlx5e_open_channels(priv);
1469 if (err) {
1470 netdev_err(netdev, "%s: mlx5e_open_channels failed, %d\n",
1471 __func__, err);
1472 goto err_close_tises;
1473 }
1474
1475 err = mlx5e_open_rqt(priv);
1476 if (err) {
1477 netdev_err(netdev, "%s: mlx5e_open_rqt failed, %d\n",
1478 __func__, err);
1479 goto err_close_channels;
1480 }
1481
1482 err = mlx5e_open_tirs(priv);
1483 if (err) {
1484 netdev_err(netdev, "%s: mlx5e_open_tir failed, %d\n",
1485 __func__, err);
1486 goto err_close_rqls;
1487 }
1488
1489 err = mlx5e_open_flow_table(priv);
1490 if (err) {
1491 netdev_err(netdev, "%s: mlx5e_open_flow_table failed, %d\n",
1492 __func__, err);
1493 goto err_close_tirs;
1494 }
1495
1496 err = mlx5e_add_all_vlan_rules(priv);
1497 if (err) {
1498 netdev_err(netdev, "%s: mlx5e_add_all_vlan_rules failed, %d\n",
1499 __func__, err);
1500 goto err_close_flow_table;
1501 }
1502
1503 mlx5e_init_eth_addr(priv);
1504
1505 set_bit(MLX5E_STATE_OPENED, &priv->state);
1506
1507 mlx5e_update_carrier(priv);
1508 mlx5e_set_rx_mode_core(priv);
1509
1510 schedule_delayed_work(&priv->update_stats_work, 0);
1511 return 0;
1512
1513err_close_flow_table:
1514 mlx5e_close_flow_table(priv);
1515
1516err_close_tirs:
1517 mlx5e_close_tirs(priv);
1518
1519err_close_rqls:
1520 mlx5e_close_rqt(priv);
1521
1522err_close_channels:
1523 mlx5e_close_channels(priv);
1524
1525err_close_tises:
1526 mlx5e_close_tises(priv);
1527
1528 return err;
1529}
1530
1531static int mlx5e_open(struct net_device *netdev)
1532{
1533 struct mlx5e_priv *priv = netdev_priv(netdev);
1534 int err;
1535
1536 mutex_lock(&priv->state_lock);
1537 err = mlx5e_open_locked(netdev);
1538 mutex_unlock(&priv->state_lock);
1539
1540 return err;
1541}
1542
1543int mlx5e_close_locked(struct net_device *netdev)
1544{
1545 struct mlx5e_priv *priv = netdev_priv(netdev);
1546
1547 clear_bit(MLX5E_STATE_OPENED, &priv->state);
1548
1549 mlx5e_set_rx_mode_core(priv);
1550 mlx5e_del_all_vlan_rules(priv);
1551 netif_carrier_off(priv->netdev);
1552 mlx5e_close_flow_table(priv);
1553 mlx5e_close_tirs(priv);
1554 mlx5e_close_rqt(priv);
1555 mlx5e_close_channels(priv);
1556 mlx5e_close_tises(priv);
1557
1558 return 0;
1559}
1560
1561static int mlx5e_close(struct net_device *netdev)
1562{
1563 struct mlx5e_priv *priv = netdev_priv(netdev);
1564 int err;
1565
1566 mutex_lock(&priv->state_lock);
1567 err = mlx5e_close_locked(netdev);
1568 mutex_unlock(&priv->state_lock);
1569
1570 return err;
1571}
1572
1573int mlx5e_update_priv_params(struct mlx5e_priv *priv,
1574 struct mlx5e_params *new_params)
1575{
1576 int err = 0;
1577 int was_opened;
1578
1579 WARN_ON(!mutex_is_locked(&priv->state_lock));
1580
1581 was_opened = test_bit(MLX5E_STATE_OPENED, &priv->state);
1582 if (was_opened)
1583 mlx5e_close_locked(priv->netdev);
1584
1585 priv->params = *new_params;
1586
1587 if (was_opened)
1588 err = mlx5e_open_locked(priv->netdev);
1589
1590 return err;
1591}
1592
1593static struct rtnl_link_stats64 *
1594mlx5e_get_stats(struct net_device *dev, struct rtnl_link_stats64 *stats)
1595{
1596 struct mlx5e_priv *priv = netdev_priv(dev);
1597 struct mlx5e_vport_stats *vstats = &priv->stats.vport;
1598
1599 stats->rx_packets = vstats->rx_packets;
1600 stats->rx_bytes = vstats->rx_bytes;
1601 stats->tx_packets = vstats->tx_packets;
1602 stats->tx_bytes = vstats->tx_bytes;
1603 stats->multicast = vstats->rx_multicast_packets +
1604 vstats->tx_multicast_packets;
1605 stats->tx_errors = vstats->tx_error_packets;
1606 stats->rx_errors = vstats->rx_error_packets;
1607 stats->tx_dropped = vstats->tx_queue_dropped;
1608 stats->rx_crc_errors = 0;
1609 stats->rx_length_errors = 0;
1610
1611 return stats;
1612}
1613
1614static void mlx5e_set_rx_mode(struct net_device *dev)
1615{
1616 struct mlx5e_priv *priv = netdev_priv(dev);
1617
1618 schedule_work(&priv->set_rx_mode_work);
1619}
1620
1621static int mlx5e_set_mac(struct net_device *netdev, void *addr)
1622{
1623 struct mlx5e_priv *priv = netdev_priv(netdev);
1624 struct sockaddr *saddr = addr;
1625
1626 if (!is_valid_ether_addr(saddr->sa_data))
1627 return -EADDRNOTAVAIL;
1628
1629 netif_addr_lock_bh(netdev);
1630 ether_addr_copy(netdev->dev_addr, saddr->sa_data);
1631 netif_addr_unlock_bh(netdev);
1632
1633 schedule_work(&priv->set_rx_mode_work);
1634
1635 return 0;
1636}
1637
1638static int mlx5e_set_features(struct net_device *netdev,
1639 netdev_features_t features)
1640{
1641 struct mlx5e_priv *priv = netdev_priv(netdev);
1642 netdev_features_t changes = features ^ netdev->features;
1643 struct mlx5e_params new_params;
1644 bool update_params = false;
1645
1646 mutex_lock(&priv->state_lock);
1647 new_params = priv->params;
1648
1649 if (changes & NETIF_F_LRO) {
1650 new_params.lro_en = !!(features & NETIF_F_LRO);
1651 update_params = true;
1652 }
1653
1654 if (update_params)
1655 mlx5e_update_priv_params(priv, &new_params);
1656
1657 if (changes & NETIF_F_HW_VLAN_CTAG_FILTER) {
1658 if (features & NETIF_F_HW_VLAN_CTAG_FILTER)
1659 mlx5e_enable_vlan_filter(priv);
1660 else
1661 mlx5e_disable_vlan_filter(priv);
1662 }
1663
1664 mutex_unlock(&priv->state_lock);
1665
1666 return 0;
1667}
1668
1669static int mlx5e_change_mtu(struct net_device *netdev, int new_mtu)
1670{
1671 struct mlx5e_priv *priv = netdev_priv(netdev);
1672 struct mlx5_core_dev *mdev = priv->mdev;
1673 int max_mtu;
facc9699 1674 int err;
f62b8bb8 1675
facc9699 1676 mlx5_query_port_max_mtu(mdev, &max_mtu, 1);
f62b8bb8 1677
facc9699
SM		 1678 if (new_mtu > max_mtu) {
1679 netdev_err(netdev,
1680 "%s: Bad MTU (%d) > (%d) Max\n",
1681 __func__, new_mtu, max_mtu);
f62b8bb8
AV		 1682 return -EINVAL;
1683 }
1684
1685 mutex_lock(&priv->state_lock);
1686 netdev->mtu = new_mtu;
1687 err = mlx5e_update_priv_params(priv, &priv->params);
1688 mutex_unlock(&priv->state_lock);
1689
1690 return err;
1691}
1692
1693static struct net_device_ops mlx5e_netdev_ops = {
1694 .ndo_open = mlx5e_open,
1695 .ndo_stop = mlx5e_close,
1696 .ndo_start_xmit = mlx5e_xmit,
1697 .ndo_get_stats64 = mlx5e_get_stats,
1698 .ndo_set_rx_mode = mlx5e_set_rx_mode,
1699 .ndo_set_mac_address = mlx5e_set_mac,
1700 .ndo_vlan_rx_add_vid = mlx5e_vlan_rx_add_vid,
1701 .ndo_vlan_rx_kill_vid = mlx5e_vlan_rx_kill_vid,
1702 .ndo_set_features = mlx5e_set_features,
1703 .ndo_change_mtu = mlx5e_change_mtu,
1704};
1705
1706static int mlx5e_check_required_hca_cap(struct mlx5_core_dev *mdev)
1707{
1708 if (MLX5_CAP_GEN(mdev, port_type) != MLX5_CAP_PORT_TYPE_ETH)
1709 return -ENOTSUPP;
1710 if (!MLX5_CAP_GEN(mdev, eth_net_offloads) ||
1711 !MLX5_CAP_GEN(mdev, nic_flow_table) ||
1712 !MLX5_CAP_ETH(mdev, csum_cap) ||
1713 !MLX5_CAP_ETH(mdev, max_lso_cap) ||
1714 !MLX5_CAP_ETH(mdev, vlan_cap) ||
796a27ec
GP		 1715 !MLX5_CAP_ETH(mdev, rss_ind_tbl_cap) ||
1716 MLX5_CAP_FLOWTABLE(mdev,
1717 flow_table_properties_nic_receive.max_ft_level)
1718 < 3) {
f62b8bb8
AV		 1719 mlx5_core_warn(mdev,
1720 "Not creating net device, some required device capabilities are missing\n");
1721 return -ENOTSUPP;
1722 }
1723 return 0;
1724}
1725
58d52291
AS		 1726u16 mlx5e_get_max_inline_cap(struct mlx5_core_dev *mdev)
1727{
1728 int bf_buf_size = (1 << MLX5_CAP_GEN(mdev, log_bf_reg_size)) / 2;
1729
1730 return bf_buf_size -
1731 sizeof(struct mlx5e_tx_wqe) +
1732 2 /*sizeof(mlx5e_tx_wqe.inline_hdr_start)*/;
1733}
1734
f62b8bb8
AV		 1735static void mlx5e_build_netdev_priv(struct mlx5_core_dev *mdev,
1736 struct net_device *netdev,
1737 int num_comp_vectors)
1738{
1739 struct mlx5e_priv *priv = netdev_priv(netdev);
1740
1741 priv->params.log_sq_size =
1742 MLX5E_PARAMS_DEFAULT_LOG_SQ_SIZE;
1743 priv->params.log_rq_size =
1744 MLX5E_PARAMS_DEFAULT_LOG_RQ_SIZE;
1745 priv->params.rx_cq_moderation_usec =
1746 MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_USEC;
1747 priv->params.rx_cq_moderation_pkts =
1748 MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_PKTS;
1749 priv->params.tx_cq_moderation_usec =
1750 MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_USEC;
1751 priv->params.tx_cq_moderation_pkts =
1752 MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_PKTS;
58d52291 1753 priv->params.tx_max_inline = mlx5e_get_max_inline_cap(mdev);
f62b8bb8
AV		 1754 priv->params.min_rx_wqes =
1755 MLX5E_PARAMS_DEFAULT_MIN_RX_WQES;
1756 priv->params.rx_hash_log_tbl_sz =
1757 (order_base_2(num_comp_vectors) >
1758 MLX5E_PARAMS_DEFAULT_RX_HASH_LOG_TBL_SZ) ?
1759 order_base_2(num_comp_vectors) :
1760 MLX5E_PARAMS_DEFAULT_RX_HASH_LOG_TBL_SZ;
1761 priv->params.num_tc = 1;
1762 priv->params.default_vlan_prio = 0;
2be6967c 1763 priv->params.rss_hfunc = ETH_RSS_HASH_XOR;
f62b8bb8
AV		 1764
1765 priv->params.lro_en = false && !!MLX5_CAP_ETH(priv->mdev, lro_cap);
1766 priv->params.lro_wqe_sz =
1767 MLX5E_PARAMS_DEFAULT_LRO_WQE_SZ;
1768
1769 priv->mdev = mdev;
1770 priv->netdev = netdev;
1771 priv->params.num_channels = num_comp_vectors;
f62b8bb8
AV		 1772 priv->default_vlan_prio = priv->params.default_vlan_prio;
1773
1774 spin_lock_init(&priv->async_events_spinlock);
1775 mutex_init(&priv->state_lock);
1776
1777 INIT_WORK(&priv->update_carrier_work, mlx5e_update_carrier_work);
1778 INIT_WORK(&priv->set_rx_mode_work, mlx5e_set_rx_mode_work);
1779 INIT_DELAYED_WORK(&priv->update_stats_work, mlx5e_update_stats_work);
1780}
1781
1782static void mlx5e_set_netdev_dev_addr(struct net_device *netdev)
1783{
1784 struct mlx5e_priv *priv = netdev_priv(netdev);
1785
d18a9470 1786 mlx5_query_nic_vport_mac_address(priv->mdev, netdev->dev_addr);
f62b8bb8
AV		 1787}
1788
1789static void mlx5e_build_netdev(struct net_device *netdev)
1790{
1791 struct mlx5e_priv *priv = netdev_priv(netdev);
1792 struct mlx5_core_dev *mdev = priv->mdev;
1793
1794 SET_NETDEV_DEV(netdev, &mdev->pdev->dev);
1795
a4418a6c 1796 if (priv->params.num_tc > 1)
f62b8bb8 1797 mlx5e_netdev_ops.ndo_select_queue = mlx5e_select_queue;
f62b8bb8
AV		 1798
1799 netdev->netdev_ops = &mlx5e_netdev_ops;
1800 netdev->watchdog_timeo = 15 * HZ;
1801
1802 netdev->ethtool_ops = &mlx5e_ethtool_ops;
1803
12be4b21 1804 netdev->vlan_features |= NETIF_F_SG;
f62b8bb8
AV		 1805 netdev->vlan_features |= NETIF_F_IP_CSUM;
1806 netdev->vlan_features |= NETIF_F_IPV6_CSUM;
1807 netdev->vlan_features |= NETIF_F_GRO;
1808 netdev->vlan_features |= NETIF_F_TSO;
1809 netdev->vlan_features |= NETIF_F_TSO6;
1810 netdev->vlan_features |= NETIF_F_RXCSUM;
1811 netdev->vlan_features |= NETIF_F_RXHASH;
1812
1813 if (!!MLX5_CAP_ETH(mdev, lro_cap))
1814 netdev->vlan_features |= NETIF_F_LRO;
1815
1816 netdev->hw_features = netdev->vlan_features;
f62b8bb8
AV		 1817 netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_RX;
1818 netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_FILTER;
1819
1820 netdev->features = netdev->hw_features;
1821 if (!priv->params.lro_en)
1822 netdev->features &= ~NETIF_F_LRO;
1823
1824 netdev->features |= NETIF_F_HIGHDMA;
1825
1826 netdev->priv_flags |= IFF_UNICAST_FLT;
1827
1828 mlx5e_set_netdev_dev_addr(netdev);
1829}
1830
1831static int mlx5e_create_mkey(struct mlx5e_priv *priv, u32 pdn,
1832 struct mlx5_core_mr *mr)
1833{
1834 struct mlx5_core_dev *mdev = priv->mdev;
1835 struct mlx5_create_mkey_mbox_in *in;
1836 int err;
1837
1838 in = mlx5_vzalloc(sizeof(*in));
1839 if (!in)
1840 return -ENOMEM;
1841
1842 in->seg.flags = MLX5_PERM_LOCAL_WRITE |
1843 MLX5_PERM_LOCAL_READ |
1844 MLX5_ACCESS_MODE_PA;
1845 in->seg.flags_pd = cpu_to_be32(pdn | MLX5_MKEY_LEN64);
1846 in->seg.qpn_mkey7_0 = cpu_to_be32(0xffffff << 8);
1847
1848 err = mlx5_core_create_mkey(mdev, mr, in, sizeof(*in), NULL, NULL,
1849 NULL);
1850
1851 kvfree(in);
1852
1853 return err;
1854}
1855
1856static void *mlx5e_create_netdev(struct mlx5_core_dev *mdev)
1857{
1858 struct net_device *netdev;
1859 struct mlx5e_priv *priv;
1860 int ncv = mdev->priv.eq_table.num_comp_vectors;
1861 int err;
1862
1863 if (mlx5e_check_required_hca_cap(mdev))
1864 return NULL;
1865
03289b88 1866 netdev = alloc_etherdev_mqs(sizeof(struct mlx5e_priv), ncv, ncv);
f62b8bb8
AV		 1867 if (!netdev) {
1868 mlx5_core_err(mdev, "alloc_etherdev_mqs() failed\n");
1869 return NULL;
1870 }
1871
1872 mlx5e_build_netdev_priv(mdev, netdev, ncv);
1873 mlx5e_build_netdev(netdev);
1874
1875 netif_carrier_off(netdev);
1876
1877 priv = netdev_priv(netdev);
1878
1879 err = mlx5_alloc_map_uar(mdev, &priv->cq_uar);
1880 if (err) {
1f2a3003 1881 mlx5_core_err(mdev, "alloc_map uar failed, %d\n", err);
f62b8bb8
AV		 1882 goto err_free_netdev;
1883 }
1884
1885 err = mlx5_core_alloc_pd(mdev, &priv->pdn);
1886 if (err) {
1f2a3003 1887 mlx5_core_err(mdev, "alloc pd failed, %d\n", err);
f62b8bb8
AV		 1888 goto err_unmap_free_uar;
1889 }
1890
3191e05f
AS		 1891 err = mlx5_alloc_transport_domain(mdev, &priv->tdn);
1892 if (err) {
1f2a3003 1893 mlx5_core_err(mdev, "alloc td failed, %d\n", err);
3191e05f
AS		 1894 goto err_dealloc_pd;
1895 }
1896
f62b8bb8
AV		 1897 err = mlx5e_create_mkey(priv, priv->pdn, &priv->mr);
1898 if (err) {
1f2a3003 1899 mlx5_core_err(mdev, "create mkey failed, %d\n", err);
3191e05f 1900 goto err_dealloc_transport_domain;
f62b8bb8
AV		 1901 }
1902
1903 err = register_netdev(netdev);
1904 if (err) {
1f2a3003 1905 mlx5_core_err(mdev, "register_netdev failed, %d\n", err);
f62b8bb8
AV		 1906 goto err_destroy_mkey;
1907 }
1908
1909 mlx5e_enable_async_events(priv);
1910
1911 return priv;
1912
1913err_destroy_mkey:
1914 mlx5_core_destroy_mkey(mdev, &priv->mr);
1915
3191e05f
AS		 1916err_dealloc_transport_domain:
1917 mlx5_dealloc_transport_domain(mdev, priv->tdn);
1918
f62b8bb8
AV		 1919err_dealloc_pd:
1920 mlx5_core_dealloc_pd(mdev, priv->pdn);
1921
1922err_unmap_free_uar:
1923 mlx5_unmap_free_uar(mdev, &priv->cq_uar);
1924
1925err_free_netdev:
1926 free_netdev(netdev);
1927
1928 return NULL;
1929}
1930
1931static void mlx5e_destroy_netdev(struct mlx5_core_dev *mdev, void *vpriv)
1932{
1933 struct mlx5e_priv *priv = vpriv;
1934 struct net_device *netdev = priv->netdev;
1935
1936 unregister_netdev(netdev);
1937 mlx5_core_destroy_mkey(priv->mdev, &priv->mr);
3191e05f 1938 mlx5_dealloc_transport_domain(priv->mdev, priv->tdn);
f62b8bb8
AV		 1939 mlx5_core_dealloc_pd(priv->mdev, priv->pdn);
1940 mlx5_unmap_free_uar(priv->mdev, &priv->cq_uar);
1941 mlx5e_disable_async_events(priv);
1942 flush_scheduled_work();
1943 free_netdev(netdev);
1944}
1945
1946static void *mlx5e_get_netdev(void *vpriv)
1947{
1948 struct mlx5e_priv *priv = vpriv;
1949
1950 return priv->netdev;
1951}
1952
1953static struct mlx5_interface mlx5e_interface = {
1954 .add = mlx5e_create_netdev,
1955 .remove = mlx5e_destroy_netdev,
1956 .event = mlx5e_async_event,
1957 .protocol = MLX5_INTERFACE_PROTOCOL_ETH,
1958 .get_dev = mlx5e_get_netdev,
1959};
1960
1961void mlx5e_init(void)
1962{
1963 mlx5_register_interface(&mlx5e_interface);
1964}
1965
1966void mlx5e_cleanup(void)
1967{
1968 mlx5_unregister_interface(&mlx5e_interface);
1969}
Linux kernel - Deliverables
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