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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 | ||
36 | struct mlx5e_rq_param { | |
37 | u32 rqc[MLX5_ST_SZ_DW(rqc)]; | |
38 | struct mlx5_wq_param wq; | |
39 | }; | |
40 | ||
41 | struct mlx5e_sq_param { | |
42 | u32 sqc[MLX5_ST_SZ_DW(sqc)]; | |
43 | struct mlx5_wq_param wq; | |
44 | }; | |
45 | ||
46 | struct mlx5e_cq_param { | |
47 | u32 cqc[MLX5_ST_SZ_DW(cqc)]; | |
48 | struct mlx5_wq_param wq; | |
49 | u16 eq_ix; | |
50 | }; | |
51 | ||
52 | struct mlx5e_channel_param { | |
53 | struct mlx5e_rq_param rq; | |
54 | struct mlx5e_sq_param sq; | |
55 | struct mlx5e_cq_param rx_cq; | |
56 | struct mlx5e_cq_param tx_cq; | |
57 | }; | |
58 | ||
59 | static void mlx5e_update_carrier(struct mlx5e_priv *priv) | |
60 | { | |
61 | struct mlx5_core_dev *mdev = priv->mdev; | |
62 | u8 port_state; | |
63 | ||
64 | port_state = mlx5_query_vport_state(mdev, | |
65 | MLX5_QUERY_VPORT_STATE_IN_OP_MOD_VNIC_VPORT); | |
66 | ||
67 | if (port_state == VPORT_STATE_UP) | |
68 | netif_carrier_on(priv->netdev); | |
69 | else | |
70 | netif_carrier_off(priv->netdev); | |
71 | } | |
72 | ||
73 | static void mlx5e_update_carrier_work(struct work_struct *work) | |
74 | { | |
75 | struct mlx5e_priv *priv = container_of(work, struct mlx5e_priv, | |
76 | update_carrier_work); | |
77 | ||
78 | mutex_lock(&priv->state_lock); | |
79 | if (test_bit(MLX5E_STATE_OPENED, &priv->state)) | |
80 | mlx5e_update_carrier(priv); | |
81 | mutex_unlock(&priv->state_lock); | |
82 | } | |
83 | ||
84 | void mlx5e_update_stats(struct mlx5e_priv *priv) | |
85 | { | |
86 | struct mlx5_core_dev *mdev = priv->mdev; | |
87 | struct mlx5e_vport_stats *s = &priv->stats.vport; | |
88 | struct mlx5e_rq_stats *rq_stats; | |
89 | struct mlx5e_sq_stats *sq_stats; | |
90 | u32 in[MLX5_ST_SZ_DW(query_vport_counter_in)]; | |
91 | u32 *out; | |
92 | int outlen = MLX5_ST_SZ_BYTES(query_vport_counter_out); | |
93 | u64 tx_offload_none; | |
94 | int i, j; | |
95 | ||
96 | out = mlx5_vzalloc(outlen); | |
97 | if (!out) | |
98 | return; | |
99 | ||
100 | /* Collect firts the SW counters and then HW for consistency */ | |
101 | s->tso_packets = 0; | |
102 | s->tso_bytes = 0; | |
103 | s->tx_queue_stopped = 0; | |
104 | s->tx_queue_wake = 0; | |
105 | s->tx_queue_dropped = 0; | |
106 | tx_offload_none = 0; | |
107 | s->lro_packets = 0; | |
108 | s->lro_bytes = 0; | |
109 | s->rx_csum_none = 0; | |
110 | s->rx_wqe_err = 0; | |
111 | for (i = 0; i < priv->params.num_channels; i++) { | |
112 | rq_stats = &priv->channel[i]->rq.stats; | |
113 | ||
114 | s->lro_packets += rq_stats->lro_packets; | |
115 | s->lro_bytes += rq_stats->lro_bytes; | |
116 | s->rx_csum_none += rq_stats->csum_none; | |
117 | s->rx_wqe_err += rq_stats->wqe_err; | |
118 | ||
119 | for (j = 0; j < priv->num_tc; j++) { | |
120 | sq_stats = &priv->channel[i]->sq[j].stats; | |
121 | ||
122 | s->tso_packets += sq_stats->tso_packets; | |
123 | s->tso_bytes += sq_stats->tso_bytes; | |
124 | s->tx_queue_stopped += sq_stats->stopped; | |
125 | s->tx_queue_wake += sq_stats->wake; | |
126 | s->tx_queue_dropped += sq_stats->dropped; | |
127 | tx_offload_none += sq_stats->csum_offload_none; | |
128 | } | |
129 | } | |
130 | ||
131 | /* HW counters */ | |
132 | memset(in, 0, sizeof(in)); | |
133 | ||
134 | MLX5_SET(query_vport_counter_in, in, opcode, | |
135 | MLX5_CMD_OP_QUERY_VPORT_COUNTER); | |
136 | MLX5_SET(query_vport_counter_in, in, op_mod, 0); | |
137 | MLX5_SET(query_vport_counter_in, in, other_vport, 0); | |
138 | ||
139 | memset(out, 0, outlen); | |
140 | ||
141 | if (mlx5_cmd_exec(mdev, in, sizeof(in), out, outlen)) | |
142 | goto free_out; | |
143 | ||
144 | #define MLX5_GET_CTR(p, x) \ | |
145 | MLX5_GET64(query_vport_counter_out, p, x) | |
146 | ||
147 | s->rx_error_packets = | |
148 | MLX5_GET_CTR(out, received_errors.packets); | |
149 | s->rx_error_bytes = | |
150 | MLX5_GET_CTR(out, received_errors.octets); | |
151 | s->tx_error_packets = | |
152 | MLX5_GET_CTR(out, transmit_errors.packets); | |
153 | s->tx_error_bytes = | |
154 | MLX5_GET_CTR(out, transmit_errors.octets); | |
155 | ||
156 | s->rx_unicast_packets = | |
157 | MLX5_GET_CTR(out, received_eth_unicast.packets); | |
158 | s->rx_unicast_bytes = | |
159 | MLX5_GET_CTR(out, received_eth_unicast.octets); | |
160 | s->tx_unicast_packets = | |
161 | MLX5_GET_CTR(out, transmitted_eth_unicast.packets); | |
162 | s->tx_unicast_bytes = | |
163 | MLX5_GET_CTR(out, transmitted_eth_unicast.octets); | |
164 | ||
165 | s->rx_multicast_packets = | |
166 | MLX5_GET_CTR(out, received_eth_multicast.packets); | |
167 | s->rx_multicast_bytes = | |
168 | MLX5_GET_CTR(out, received_eth_multicast.octets); | |
169 | s->tx_multicast_packets = | |
170 | MLX5_GET_CTR(out, transmitted_eth_multicast.packets); | |
171 | s->tx_multicast_bytes = | |
172 | MLX5_GET_CTR(out, transmitted_eth_multicast.octets); | |
173 | ||
174 | s->rx_broadcast_packets = | |
175 | MLX5_GET_CTR(out, received_eth_broadcast.packets); | |
176 | s->rx_broadcast_bytes = | |
177 | MLX5_GET_CTR(out, received_eth_broadcast.octets); | |
178 | s->tx_broadcast_packets = | |
179 | MLX5_GET_CTR(out, transmitted_eth_broadcast.packets); | |
180 | s->tx_broadcast_bytes = | |
181 | MLX5_GET_CTR(out, transmitted_eth_broadcast.octets); | |
182 | ||
183 | s->rx_packets = | |
184 | s->rx_unicast_packets + | |
185 | s->rx_multicast_packets + | |
186 | s->rx_broadcast_packets; | |
187 | s->rx_bytes = | |
188 | s->rx_unicast_bytes + | |
189 | s->rx_multicast_bytes + | |
190 | s->rx_broadcast_bytes; | |
191 | s->tx_packets = | |
192 | s->tx_unicast_packets + | |
193 | s->tx_multicast_packets + | |
194 | s->tx_broadcast_packets; | |
195 | s->tx_bytes = | |
196 | s->tx_unicast_bytes + | |
197 | s->tx_multicast_bytes + | |
198 | s->tx_broadcast_bytes; | |
199 | ||
200 | /* Update calculated offload counters */ | |
201 | s->tx_csum_offload = s->tx_packets - tx_offload_none; | |
202 | s->rx_csum_good = s->rx_packets - s->rx_csum_none; | |
203 | ||
204 | free_out: | |
205 | kvfree(out); | |
206 | } | |
207 | ||
208 | static void mlx5e_update_stats_work(struct work_struct *work) | |
209 | { | |
210 | struct delayed_work *dwork = to_delayed_work(work); | |
211 | struct mlx5e_priv *priv = container_of(dwork, struct mlx5e_priv, | |
212 | update_stats_work); | |
213 | mutex_lock(&priv->state_lock); | |
214 | if (test_bit(MLX5E_STATE_OPENED, &priv->state)) { | |
215 | mlx5e_update_stats(priv); | |
216 | schedule_delayed_work(dwork, | |
217 | msecs_to_jiffies( | |
218 | MLX5E_UPDATE_STATS_INTERVAL)); | |
219 | } | |
220 | mutex_unlock(&priv->state_lock); | |
221 | } | |
222 | ||
223 | static void __mlx5e_async_event(struct mlx5e_priv *priv, | |
224 | enum mlx5_dev_event event) | |
225 | { | |
226 | switch (event) { | |
227 | case MLX5_DEV_EVENT_PORT_UP: | |
228 | case MLX5_DEV_EVENT_PORT_DOWN: | |
229 | schedule_work(&priv->update_carrier_work); | |
230 | break; | |
231 | ||
232 | default: | |
233 | break; | |
234 | } | |
235 | } | |
236 | ||
237 | static void mlx5e_async_event(struct mlx5_core_dev *mdev, void *vpriv, | |
238 | enum mlx5_dev_event event, unsigned long param) | |
239 | { | |
240 | struct mlx5e_priv *priv = vpriv; | |
241 | ||
242 | spin_lock(&priv->async_events_spinlock); | |
243 | if (test_bit(MLX5E_STATE_ASYNC_EVENTS_ENABLE, &priv->state)) | |
244 | __mlx5e_async_event(priv, event); | |
245 | spin_unlock(&priv->async_events_spinlock); | |
246 | } | |
247 | ||
248 | static void mlx5e_enable_async_events(struct mlx5e_priv *priv) | |
249 | { | |
250 | set_bit(MLX5E_STATE_ASYNC_EVENTS_ENABLE, &priv->state); | |
251 | } | |
252 | ||
253 | static void mlx5e_disable_async_events(struct mlx5e_priv *priv) | |
254 | { | |
255 | spin_lock_irq(&priv->async_events_spinlock); | |
256 | clear_bit(MLX5E_STATE_ASYNC_EVENTS_ENABLE, &priv->state); | |
257 | spin_unlock_irq(&priv->async_events_spinlock); | |
258 | } | |
259 | ||
260 | static void mlx5e_send_nop(struct mlx5e_sq *sq) | |
261 | { | |
262 | struct mlx5_wq_cyc *wq = &sq->wq; | |
263 | ||
264 | u16 pi = sq->pc & wq->sz_m1; | |
265 | struct mlx5e_tx_wqe *wqe = mlx5_wq_cyc_get_wqe(wq, pi); | |
266 | ||
267 | struct mlx5_wqe_ctrl_seg *cseg = &wqe->ctrl; | |
268 | ||
269 | memset(cseg, 0, sizeof(*cseg)); | |
270 | ||
271 | cseg->opmod_idx_opcode = cpu_to_be32((sq->pc << 8) | MLX5_OPCODE_NOP); | |
272 | cseg->qpn_ds = cpu_to_be32((sq->sqn << 8) | 0x01); | |
273 | cseg->fm_ce_se = MLX5_WQE_CTRL_CQ_UPDATE; | |
274 | ||
275 | sq->skb[pi] = NULL; | |
276 | sq->pc++; | |
277 | mlx5e_tx_notify_hw(sq, wqe); | |
278 | } | |
279 | ||
280 | static int mlx5e_create_rq(struct mlx5e_channel *c, | |
281 | struct mlx5e_rq_param *param, | |
282 | struct mlx5e_rq *rq) | |
283 | { | |
284 | struct mlx5e_priv *priv = c->priv; | |
285 | struct mlx5_core_dev *mdev = priv->mdev; | |
286 | void *rqc = param->rqc; | |
287 | void *rqc_wq = MLX5_ADDR_OF(rqc, rqc, wq); | |
288 | int wq_sz; | |
289 | int err; | |
290 | int i; | |
291 | ||
292 | err = mlx5_wq_ll_create(mdev, ¶m->wq, rqc_wq, &rq->wq, | |
293 | &rq->wq_ctrl); | |
294 | if (err) | |
295 | return err; | |
296 | ||
297 | rq->wq.db = &rq->wq.db[MLX5_RCV_DBR]; | |
298 | ||
299 | wq_sz = mlx5_wq_ll_get_size(&rq->wq); | |
300 | rq->skb = kzalloc_node(wq_sz * sizeof(*rq->skb), GFP_KERNEL, | |
301 | cpu_to_node(c->cpu)); | |
302 | if (!rq->skb) { | |
303 | err = -ENOMEM; | |
304 | goto err_rq_wq_destroy; | |
305 | } | |
306 | ||
307 | rq->wqe_sz = (priv->params.lro_en) ? priv->params.lro_wqe_sz : | |
308 | priv->netdev->mtu + ETH_HLEN + VLAN_HLEN; | |
309 | ||
310 | for (i = 0; i < wq_sz; i++) { | |
311 | struct mlx5e_rx_wqe *wqe = mlx5_wq_ll_get_wqe(&rq->wq, i); | |
312 | ||
313 | wqe->data.lkey = c->mkey_be; | |
314 | wqe->data.byte_count = cpu_to_be32(rq->wqe_sz); | |
315 | } | |
316 | ||
317 | rq->pdev = c->pdev; | |
318 | rq->netdev = c->netdev; | |
319 | rq->channel = c; | |
320 | rq->ix = c->ix; | |
321 | ||
322 | return 0; | |
323 | ||
324 | err_rq_wq_destroy: | |
325 | mlx5_wq_destroy(&rq->wq_ctrl); | |
326 | ||
327 | return err; | |
328 | } | |
329 | ||
330 | static void mlx5e_destroy_rq(struct mlx5e_rq *rq) | |
331 | { | |
332 | kfree(rq->skb); | |
333 | mlx5_wq_destroy(&rq->wq_ctrl); | |
334 | } | |
335 | ||
336 | static int mlx5e_enable_rq(struct mlx5e_rq *rq, struct mlx5e_rq_param *param) | |
337 | { | |
338 | struct mlx5e_channel *c = rq->channel; | |
339 | struct mlx5e_priv *priv = c->priv; | |
340 | struct mlx5_core_dev *mdev = priv->mdev; | |
341 | ||
342 | void *in; | |
343 | void *rqc; | |
344 | void *wq; | |
345 | int inlen; | |
346 | int err; | |
347 | ||
348 | inlen = MLX5_ST_SZ_BYTES(create_rq_in) + | |
349 | sizeof(u64) * rq->wq_ctrl.buf.npages; | |
350 | in = mlx5_vzalloc(inlen); | |
351 | if (!in) | |
352 | return -ENOMEM; | |
353 | ||
354 | rqc = MLX5_ADDR_OF(create_rq_in, in, ctx); | |
355 | wq = MLX5_ADDR_OF(rqc, rqc, wq); | |
356 | ||
357 | memcpy(rqc, param->rqc, sizeof(param->rqc)); | |
358 | ||
359 | MLX5_SET(rqc, rqc, cqn, c->rq.cq.mcq.cqn); | |
360 | MLX5_SET(rqc, rqc, state, MLX5_RQC_STATE_RST); | |
361 | MLX5_SET(rqc, rqc, flush_in_error_en, 1); | |
362 | MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_LINKED_LIST); | |
363 | MLX5_SET(wq, wq, log_wq_pg_sz, rq->wq_ctrl.buf.page_shift - | |
364 | PAGE_SHIFT); | |
365 | MLX5_SET64(wq, wq, dbr_addr, rq->wq_ctrl.db.dma); | |
366 | ||
367 | mlx5_fill_page_array(&rq->wq_ctrl.buf, | |
368 | (__be64 *)MLX5_ADDR_OF(wq, wq, pas)); | |
369 | ||
7db22ffb | 370 | err = mlx5_core_create_rq(mdev, in, inlen, &rq->rqn); |
f62b8bb8 AV |
371 | |
372 | kvfree(in); | |
373 | ||
374 | return err; | |
375 | } | |
376 | ||
377 | static int mlx5e_modify_rq(struct mlx5e_rq *rq, int curr_state, int next_state) | |
378 | { | |
379 | struct mlx5e_channel *c = rq->channel; | |
380 | struct mlx5e_priv *priv = c->priv; | |
381 | struct mlx5_core_dev *mdev = priv->mdev; | |
382 | ||
383 | void *in; | |
384 | void *rqc; | |
385 | int inlen; | |
386 | int err; | |
387 | ||
388 | inlen = MLX5_ST_SZ_BYTES(modify_rq_in); | |
389 | in = mlx5_vzalloc(inlen); | |
390 | if (!in) | |
391 | return -ENOMEM; | |
392 | ||
393 | rqc = MLX5_ADDR_OF(modify_rq_in, in, ctx); | |
394 | ||
395 | MLX5_SET(modify_rq_in, in, rq_state, curr_state); | |
396 | MLX5_SET(rqc, rqc, state, next_state); | |
397 | ||
7db22ffb | 398 | err = mlx5_core_modify_rq(mdev, rq->rqn, in, inlen); |
f62b8bb8 AV |
399 | |
400 | kvfree(in); | |
401 | ||
402 | return err; | |
403 | } | |
404 | ||
405 | static void mlx5e_disable_rq(struct mlx5e_rq *rq) | |
406 | { | |
407 | struct mlx5e_channel *c = rq->channel; | |
408 | struct mlx5e_priv *priv = c->priv; | |
409 | struct mlx5_core_dev *mdev = priv->mdev; | |
410 | ||
7db22ffb | 411 | mlx5_core_destroy_rq(mdev, rq->rqn); |
f62b8bb8 AV |
412 | } |
413 | ||
414 | static int mlx5e_wait_for_min_rx_wqes(struct mlx5e_rq *rq) | |
415 | { | |
416 | struct mlx5e_channel *c = rq->channel; | |
417 | struct mlx5e_priv *priv = c->priv; | |
418 | struct mlx5_wq_ll *wq = &rq->wq; | |
419 | int i; | |
420 | ||
421 | for (i = 0; i < 1000; i++) { | |
422 | if (wq->cur_sz >= priv->params.min_rx_wqes) | |
423 | return 0; | |
424 | ||
425 | msleep(20); | |
426 | } | |
427 | ||
428 | return -ETIMEDOUT; | |
429 | } | |
430 | ||
431 | static int mlx5e_open_rq(struct mlx5e_channel *c, | |
432 | struct mlx5e_rq_param *param, | |
433 | struct mlx5e_rq *rq) | |
434 | { | |
435 | int err; | |
436 | ||
437 | err = mlx5e_create_rq(c, param, rq); | |
438 | if (err) | |
439 | return err; | |
440 | ||
441 | err = mlx5e_enable_rq(rq, param); | |
442 | if (err) | |
443 | goto err_destroy_rq; | |
444 | ||
445 | err = mlx5e_modify_rq(rq, MLX5_RQC_STATE_RST, MLX5_RQC_STATE_RDY); | |
446 | if (err) | |
447 | goto err_disable_rq; | |
448 | ||
449 | set_bit(MLX5E_RQ_STATE_POST_WQES_ENABLE, &rq->state); | |
450 | mlx5e_send_nop(&c->sq[0]); /* trigger mlx5e_post_rx_wqes() */ | |
451 | ||
452 | return 0; | |
453 | ||
454 | err_disable_rq: | |
455 | mlx5e_disable_rq(rq); | |
456 | err_destroy_rq: | |
457 | mlx5e_destroy_rq(rq); | |
458 | ||
459 | return err; | |
460 | } | |
461 | ||
462 | static void mlx5e_close_rq(struct mlx5e_rq *rq) | |
463 | { | |
464 | clear_bit(MLX5E_RQ_STATE_POST_WQES_ENABLE, &rq->state); | |
465 | napi_synchronize(&rq->channel->napi); /* prevent mlx5e_post_rx_wqes */ | |
466 | ||
467 | mlx5e_modify_rq(rq, MLX5_RQC_STATE_RDY, MLX5_RQC_STATE_ERR); | |
468 | while (!mlx5_wq_ll_is_empty(&rq->wq)) | |
469 | msleep(20); | |
470 | ||
471 | /* avoid destroying rq before mlx5e_poll_rx_cq() is done with it */ | |
472 | napi_synchronize(&rq->channel->napi); | |
473 | ||
474 | mlx5e_disable_rq(rq); | |
475 | mlx5e_destroy_rq(rq); | |
476 | } | |
477 | ||
478 | static void mlx5e_free_sq_db(struct mlx5e_sq *sq) | |
479 | { | |
480 | kfree(sq->dma_fifo); | |
481 | kfree(sq->skb); | |
482 | } | |
483 | ||
484 | static int mlx5e_alloc_sq_db(struct mlx5e_sq *sq, int numa) | |
485 | { | |
486 | int wq_sz = mlx5_wq_cyc_get_size(&sq->wq); | |
487 | int df_sz = wq_sz * MLX5_SEND_WQEBB_NUM_DS; | |
488 | ||
489 | sq->skb = kzalloc_node(wq_sz * sizeof(*sq->skb), GFP_KERNEL, numa); | |
490 | sq->dma_fifo = kzalloc_node(df_sz * sizeof(*sq->dma_fifo), GFP_KERNEL, | |
491 | numa); | |
492 | ||
493 | if (!sq->skb || !sq->dma_fifo) { | |
494 | mlx5e_free_sq_db(sq); | |
495 | return -ENOMEM; | |
496 | } | |
497 | ||
498 | sq->dma_fifo_mask = df_sz - 1; | |
499 | ||
500 | return 0; | |
501 | } | |
502 | ||
503 | static int mlx5e_create_sq(struct mlx5e_channel *c, | |
504 | int tc, | |
505 | struct mlx5e_sq_param *param, | |
506 | struct mlx5e_sq *sq) | |
507 | { | |
508 | struct mlx5e_priv *priv = c->priv; | |
509 | struct mlx5_core_dev *mdev = priv->mdev; | |
510 | ||
511 | void *sqc = param->sqc; | |
512 | void *sqc_wq = MLX5_ADDR_OF(sqc, sqc, wq); | |
513 | int err; | |
514 | ||
515 | err = mlx5_alloc_map_uar(mdev, &sq->uar); | |
516 | if (err) | |
517 | return err; | |
518 | ||
519 | err = mlx5_wq_cyc_create(mdev, ¶m->wq, sqc_wq, &sq->wq, | |
520 | &sq->wq_ctrl); | |
521 | if (err) | |
522 | goto err_unmap_free_uar; | |
523 | ||
524 | sq->wq.db = &sq->wq.db[MLX5_SND_DBR]; | |
525 | sq->uar_map = sq->uar.map; | |
526 | sq->bf_buf_size = (1 << MLX5_CAP_GEN(mdev, log_bf_reg_size)) / 2; | |
527 | ||
7ec0bb22 DC |
528 | err = mlx5e_alloc_sq_db(sq, cpu_to_node(c->cpu)); |
529 | if (err) | |
f62b8bb8 AV |
530 | goto err_sq_wq_destroy; |
531 | ||
532 | sq->txq = netdev_get_tx_queue(priv->netdev, | |
533 | c->ix + tc * priv->params.num_channels); | |
534 | ||
535 | sq->pdev = c->pdev; | |
536 | sq->mkey_be = c->mkey_be; | |
537 | sq->channel = c; | |
538 | sq->tc = tc; | |
539 | ||
540 | return 0; | |
541 | ||
542 | err_sq_wq_destroy: | |
543 | mlx5_wq_destroy(&sq->wq_ctrl); | |
544 | ||
545 | err_unmap_free_uar: | |
546 | mlx5_unmap_free_uar(mdev, &sq->uar); | |
547 | ||
548 | return err; | |
549 | } | |
550 | ||
551 | static void mlx5e_destroy_sq(struct mlx5e_sq *sq) | |
552 | { | |
553 | struct mlx5e_channel *c = sq->channel; | |
554 | struct mlx5e_priv *priv = c->priv; | |
555 | ||
556 | mlx5e_free_sq_db(sq); | |
557 | mlx5_wq_destroy(&sq->wq_ctrl); | |
558 | mlx5_unmap_free_uar(priv->mdev, &sq->uar); | |
559 | } | |
560 | ||
561 | static int mlx5e_enable_sq(struct mlx5e_sq *sq, struct mlx5e_sq_param *param) | |
562 | { | |
563 | struct mlx5e_channel *c = sq->channel; | |
564 | struct mlx5e_priv *priv = c->priv; | |
565 | struct mlx5_core_dev *mdev = priv->mdev; | |
566 | ||
567 | void *in; | |
568 | void *sqc; | |
569 | void *wq; | |
570 | int inlen; | |
571 | int err; | |
572 | ||
573 | inlen = MLX5_ST_SZ_BYTES(create_sq_in) + | |
574 | sizeof(u64) * sq->wq_ctrl.buf.npages; | |
575 | in = mlx5_vzalloc(inlen); | |
576 | if (!in) | |
577 | return -ENOMEM; | |
578 | ||
579 | sqc = MLX5_ADDR_OF(create_sq_in, in, ctx); | |
580 | wq = MLX5_ADDR_OF(sqc, sqc, wq); | |
581 | ||
582 | memcpy(sqc, param->sqc, sizeof(param->sqc)); | |
583 | ||
584 | MLX5_SET(sqc, sqc, user_index, sq->tc); | |
585 | MLX5_SET(sqc, sqc, tis_num_0, priv->tisn[sq->tc]); | |
586 | MLX5_SET(sqc, sqc, cqn, c->sq[sq->tc].cq.mcq.cqn); | |
587 | MLX5_SET(sqc, sqc, state, MLX5_SQC_STATE_RST); | |
588 | MLX5_SET(sqc, sqc, tis_lst_sz, 1); | |
589 | MLX5_SET(sqc, sqc, flush_in_error_en, 1); | |
590 | ||
591 | MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_CYCLIC); | |
592 | MLX5_SET(wq, wq, uar_page, sq->uar.index); | |
593 | MLX5_SET(wq, wq, log_wq_pg_sz, sq->wq_ctrl.buf.page_shift - | |
594 | PAGE_SHIFT); | |
595 | MLX5_SET64(wq, wq, dbr_addr, sq->wq_ctrl.db.dma); | |
596 | ||
597 | mlx5_fill_page_array(&sq->wq_ctrl.buf, | |
598 | (__be64 *)MLX5_ADDR_OF(wq, wq, pas)); | |
599 | ||
7db22ffb | 600 | err = mlx5_core_create_sq(mdev, in, inlen, &sq->sqn); |
f62b8bb8 AV |
601 | |
602 | kvfree(in); | |
603 | ||
604 | return err; | |
605 | } | |
606 | ||
607 | static int mlx5e_modify_sq(struct mlx5e_sq *sq, int curr_state, int next_state) | |
608 | { | |
609 | struct mlx5e_channel *c = sq->channel; | |
610 | struct mlx5e_priv *priv = c->priv; | |
611 | struct mlx5_core_dev *mdev = priv->mdev; | |
612 | ||
613 | void *in; | |
614 | void *sqc; | |
615 | int inlen; | |
616 | int err; | |
617 | ||
618 | inlen = MLX5_ST_SZ_BYTES(modify_sq_in); | |
619 | in = mlx5_vzalloc(inlen); | |
620 | if (!in) | |
621 | return -ENOMEM; | |
622 | ||
623 | sqc = MLX5_ADDR_OF(modify_sq_in, in, ctx); | |
624 | ||
625 | MLX5_SET(modify_sq_in, in, sq_state, curr_state); | |
626 | MLX5_SET(sqc, sqc, state, next_state); | |
627 | ||
7db22ffb | 628 | err = mlx5_core_modify_sq(mdev, sq->sqn, in, inlen); |
f62b8bb8 AV |
629 | |
630 | kvfree(in); | |
631 | ||
632 | return err; | |
633 | } | |
634 | ||
635 | static void mlx5e_disable_sq(struct mlx5e_sq *sq) | |
636 | { | |
637 | struct mlx5e_channel *c = sq->channel; | |
638 | struct mlx5e_priv *priv = c->priv; | |
639 | struct mlx5_core_dev *mdev = priv->mdev; | |
640 | ||
7db22ffb | 641 | mlx5_core_destroy_sq(mdev, sq->sqn); |
f62b8bb8 AV |
642 | } |
643 | ||
644 | static int mlx5e_open_sq(struct mlx5e_channel *c, | |
645 | int tc, | |
646 | struct mlx5e_sq_param *param, | |
647 | struct mlx5e_sq *sq) | |
648 | { | |
649 | int err; | |
650 | ||
651 | err = mlx5e_create_sq(c, tc, param, sq); | |
652 | if (err) | |
653 | return err; | |
654 | ||
655 | err = mlx5e_enable_sq(sq, param); | |
656 | if (err) | |
657 | goto err_destroy_sq; | |
658 | ||
659 | err = mlx5e_modify_sq(sq, MLX5_SQC_STATE_RST, MLX5_SQC_STATE_RDY); | |
660 | if (err) | |
661 | goto err_disable_sq; | |
662 | ||
663 | set_bit(MLX5E_SQ_STATE_WAKE_TXQ_ENABLE, &sq->state); | |
664 | netdev_tx_reset_queue(sq->txq); | |
665 | netif_tx_start_queue(sq->txq); | |
666 | ||
667 | return 0; | |
668 | ||
669 | err_disable_sq: | |
670 | mlx5e_disable_sq(sq); | |
671 | err_destroy_sq: | |
672 | mlx5e_destroy_sq(sq); | |
673 | ||
674 | return err; | |
675 | } | |
676 | ||
677 | static inline void netif_tx_disable_queue(struct netdev_queue *txq) | |
678 | { | |
679 | __netif_tx_lock_bh(txq); | |
680 | netif_tx_stop_queue(txq); | |
681 | __netif_tx_unlock_bh(txq); | |
682 | } | |
683 | ||
684 | static void mlx5e_close_sq(struct mlx5e_sq *sq) | |
685 | { | |
686 | clear_bit(MLX5E_SQ_STATE_WAKE_TXQ_ENABLE, &sq->state); | |
687 | napi_synchronize(&sq->channel->napi); /* prevent netif_tx_wake_queue */ | |
688 | netif_tx_disable_queue(sq->txq); | |
689 | ||
690 | /* ensure hw is notified of all pending wqes */ | |
691 | if (mlx5e_sq_has_room_for(sq, 1)) | |
692 | mlx5e_send_nop(sq); | |
693 | ||
694 | mlx5e_modify_sq(sq, MLX5_SQC_STATE_RDY, MLX5_SQC_STATE_ERR); | |
695 | while (sq->cc != sq->pc) /* wait till sq is empty */ | |
696 | msleep(20); | |
697 | ||
698 | /* avoid destroying sq before mlx5e_poll_tx_cq() is done with it */ | |
699 | napi_synchronize(&sq->channel->napi); | |
700 | ||
701 | mlx5e_disable_sq(sq); | |
702 | mlx5e_destroy_sq(sq); | |
703 | } | |
704 | ||
705 | static int mlx5e_create_cq(struct mlx5e_channel *c, | |
706 | struct mlx5e_cq_param *param, | |
707 | struct mlx5e_cq *cq) | |
708 | { | |
709 | struct mlx5e_priv *priv = c->priv; | |
710 | struct mlx5_core_dev *mdev = priv->mdev; | |
711 | struct mlx5_core_cq *mcq = &cq->mcq; | |
712 | int eqn_not_used; | |
713 | int irqn; | |
714 | int err; | |
715 | u32 i; | |
716 | ||
717 | param->wq.numa = cpu_to_node(c->cpu); | |
718 | param->eq_ix = c->ix; | |
719 | ||
720 | err = mlx5_cqwq_create(mdev, ¶m->wq, param->cqc, &cq->wq, | |
721 | &cq->wq_ctrl); | |
722 | if (err) | |
723 | return err; | |
724 | ||
725 | mlx5_vector2eqn(mdev, param->eq_ix, &eqn_not_used, &irqn); | |
726 | ||
727 | cq->napi = &c->napi; | |
728 | ||
729 | mcq->cqe_sz = 64; | |
730 | mcq->set_ci_db = cq->wq_ctrl.db.db; | |
731 | mcq->arm_db = cq->wq_ctrl.db.db + 1; | |
732 | *mcq->set_ci_db = 0; | |
733 | *mcq->arm_db = 0; | |
734 | mcq->vector = param->eq_ix; | |
735 | mcq->comp = mlx5e_completion_event; | |
736 | mcq->event = mlx5e_cq_error_event; | |
737 | mcq->irqn = irqn; | |
738 | mcq->uar = &priv->cq_uar; | |
739 | ||
740 | for (i = 0; i < mlx5_cqwq_get_size(&cq->wq); i++) { | |
741 | struct mlx5_cqe64 *cqe = mlx5_cqwq_get_wqe(&cq->wq, i); | |
742 | ||
743 | cqe->op_own = 0xf1; | |
744 | } | |
745 | ||
746 | cq->channel = c; | |
747 | ||
748 | return 0; | |
749 | } | |
750 | ||
751 | static void mlx5e_destroy_cq(struct mlx5e_cq *cq) | |
752 | { | |
753 | mlx5_wq_destroy(&cq->wq_ctrl); | |
754 | } | |
755 | ||
756 | static int mlx5e_enable_cq(struct mlx5e_cq *cq, struct mlx5e_cq_param *param) | |
757 | { | |
758 | struct mlx5e_channel *c = cq->channel; | |
759 | struct mlx5e_priv *priv = c->priv; | |
760 | struct mlx5_core_dev *mdev = priv->mdev; | |
761 | struct mlx5_core_cq *mcq = &cq->mcq; | |
762 | ||
763 | void *in; | |
764 | void *cqc; | |
765 | int inlen; | |
766 | int irqn_not_used; | |
767 | int eqn; | |
768 | int err; | |
769 | ||
770 | inlen = MLX5_ST_SZ_BYTES(create_cq_in) + | |
771 | sizeof(u64) * cq->wq_ctrl.buf.npages; | |
772 | in = mlx5_vzalloc(inlen); | |
773 | if (!in) | |
774 | return -ENOMEM; | |
775 | ||
776 | cqc = MLX5_ADDR_OF(create_cq_in, in, cq_context); | |
777 | ||
778 | memcpy(cqc, param->cqc, sizeof(param->cqc)); | |
779 | ||
780 | mlx5_fill_page_array(&cq->wq_ctrl.buf, | |
781 | (__be64 *)MLX5_ADDR_OF(create_cq_in, in, pas)); | |
782 | ||
783 | mlx5_vector2eqn(mdev, param->eq_ix, &eqn, &irqn_not_used); | |
784 | ||
785 | MLX5_SET(cqc, cqc, c_eqn, eqn); | |
786 | MLX5_SET(cqc, cqc, uar_page, mcq->uar->index); | |
787 | MLX5_SET(cqc, cqc, log_page_size, cq->wq_ctrl.buf.page_shift - | |
788 | PAGE_SHIFT); | |
789 | MLX5_SET64(cqc, cqc, dbr_addr, cq->wq_ctrl.db.dma); | |
790 | ||
791 | err = mlx5_core_create_cq(mdev, mcq, in, inlen); | |
792 | ||
793 | kvfree(in); | |
794 | ||
795 | if (err) | |
796 | return err; | |
797 | ||
798 | mlx5e_cq_arm(cq); | |
799 | ||
800 | return 0; | |
801 | } | |
802 | ||
803 | static void mlx5e_disable_cq(struct mlx5e_cq *cq) | |
804 | { | |
805 | struct mlx5e_channel *c = cq->channel; | |
806 | struct mlx5e_priv *priv = c->priv; | |
807 | struct mlx5_core_dev *mdev = priv->mdev; | |
808 | ||
809 | mlx5_core_destroy_cq(mdev, &cq->mcq); | |
810 | } | |
811 | ||
812 | static int mlx5e_open_cq(struct mlx5e_channel *c, | |
813 | struct mlx5e_cq_param *param, | |
814 | struct mlx5e_cq *cq, | |
815 | u16 moderation_usecs, | |
816 | u16 moderation_frames) | |
817 | { | |
818 | int err; | |
819 | struct mlx5e_priv *priv = c->priv; | |
820 | struct mlx5_core_dev *mdev = priv->mdev; | |
821 | ||
822 | err = mlx5e_create_cq(c, param, cq); | |
823 | if (err) | |
824 | return err; | |
825 | ||
826 | err = mlx5e_enable_cq(cq, param); | |
827 | if (err) | |
828 | goto err_destroy_cq; | |
829 | ||
830 | err = mlx5_core_modify_cq_moderation(mdev, &cq->mcq, | |
831 | moderation_usecs, | |
832 | moderation_frames); | |
833 | if (err) | |
834 | goto err_destroy_cq; | |
835 | ||
836 | return 0; | |
837 | ||
838 | err_destroy_cq: | |
839 | mlx5e_destroy_cq(cq); | |
840 | ||
841 | return err; | |
842 | } | |
843 | ||
844 | static void mlx5e_close_cq(struct mlx5e_cq *cq) | |
845 | { | |
846 | mlx5e_disable_cq(cq); | |
847 | mlx5e_destroy_cq(cq); | |
848 | } | |
849 | ||
850 | static int mlx5e_get_cpu(struct mlx5e_priv *priv, int ix) | |
851 | { | |
852 | return cpumask_first(priv->mdev->priv.irq_info[ix].mask); | |
853 | } | |
854 | ||
855 | static int mlx5e_open_tx_cqs(struct mlx5e_channel *c, | |
856 | struct mlx5e_channel_param *cparam) | |
857 | { | |
858 | struct mlx5e_priv *priv = c->priv; | |
859 | int err; | |
860 | int tc; | |
861 | ||
862 | for (tc = 0; tc < c->num_tc; tc++) { | |
863 | err = mlx5e_open_cq(c, &cparam->tx_cq, &c->sq[tc].cq, | |
864 | priv->params.tx_cq_moderation_usec, | |
865 | priv->params.tx_cq_moderation_pkts); | |
866 | if (err) | |
867 | goto err_close_tx_cqs; | |
868 | ||
869 | c->sq[tc].cq.sqrq = &c->sq[tc]; | |
870 | } | |
871 | ||
872 | return 0; | |
873 | ||
874 | err_close_tx_cqs: | |
875 | for (tc--; tc >= 0; tc--) | |
876 | mlx5e_close_cq(&c->sq[tc].cq); | |
877 | ||
878 | return err; | |
879 | } | |
880 | ||
881 | static void mlx5e_close_tx_cqs(struct mlx5e_channel *c) | |
882 | { | |
883 | int tc; | |
884 | ||
885 | for (tc = 0; tc < c->num_tc; tc++) | |
886 | mlx5e_close_cq(&c->sq[tc].cq); | |
887 | } | |
888 | ||
889 | static int mlx5e_open_sqs(struct mlx5e_channel *c, | |
890 | struct mlx5e_channel_param *cparam) | |
891 | { | |
892 | int err; | |
893 | int tc; | |
894 | ||
895 | for (tc = 0; tc < c->num_tc; tc++) { | |
896 | err = mlx5e_open_sq(c, tc, &cparam->sq, &c->sq[tc]); | |
897 | if (err) | |
898 | goto err_close_sqs; | |
899 | } | |
900 | ||
901 | return 0; | |
902 | ||
903 | err_close_sqs: | |
904 | for (tc--; tc >= 0; tc--) | |
905 | mlx5e_close_sq(&c->sq[tc]); | |
906 | ||
907 | return err; | |
908 | } | |
909 | ||
910 | static void mlx5e_close_sqs(struct mlx5e_channel *c) | |
911 | { | |
912 | int tc; | |
913 | ||
914 | for (tc = 0; tc < c->num_tc; tc++) | |
915 | mlx5e_close_sq(&c->sq[tc]); | |
916 | } | |
917 | ||
918 | static int mlx5e_open_channel(struct mlx5e_priv *priv, int ix, | |
919 | struct mlx5e_channel_param *cparam, | |
920 | struct mlx5e_channel **cp) | |
921 | { | |
922 | struct net_device *netdev = priv->netdev; | |
923 | int cpu = mlx5e_get_cpu(priv, ix); | |
924 | struct mlx5e_channel *c; | |
925 | int err; | |
926 | ||
927 | c = kzalloc_node(sizeof(*c), GFP_KERNEL, cpu_to_node(cpu)); | |
928 | if (!c) | |
929 | return -ENOMEM; | |
930 | ||
931 | c->priv = priv; | |
932 | c->ix = ix; | |
933 | c->cpu = cpu; | |
934 | c->pdev = &priv->mdev->pdev->dev; | |
935 | c->netdev = priv->netdev; | |
936 | c->mkey_be = cpu_to_be32(priv->mr.key); | |
937 | c->num_tc = priv->num_tc; | |
938 | ||
939 | netif_napi_add(netdev, &c->napi, mlx5e_napi_poll, 64); | |
940 | ||
941 | err = mlx5e_open_tx_cqs(c, cparam); | |
942 | if (err) | |
943 | goto err_napi_del; | |
944 | ||
945 | err = mlx5e_open_cq(c, &cparam->rx_cq, &c->rq.cq, | |
946 | priv->params.rx_cq_moderation_usec, | |
947 | priv->params.rx_cq_moderation_pkts); | |
948 | if (err) | |
949 | goto err_close_tx_cqs; | |
950 | c->rq.cq.sqrq = &c->rq; | |
951 | ||
952 | napi_enable(&c->napi); | |
953 | ||
954 | err = mlx5e_open_sqs(c, cparam); | |
955 | if (err) | |
956 | goto err_disable_napi; | |
957 | ||
958 | err = mlx5e_open_rq(c, &cparam->rq, &c->rq); | |
959 | if (err) | |
960 | goto err_close_sqs; | |
961 | ||
962 | netif_set_xps_queue(netdev, get_cpu_mask(c->cpu), ix); | |
963 | *cp = c; | |
964 | ||
965 | return 0; | |
966 | ||
967 | err_close_sqs: | |
968 | mlx5e_close_sqs(c); | |
969 | ||
970 | err_disable_napi: | |
971 | napi_disable(&c->napi); | |
972 | mlx5e_close_cq(&c->rq.cq); | |
973 | ||
974 | err_close_tx_cqs: | |
975 | mlx5e_close_tx_cqs(c); | |
976 | ||
977 | err_napi_del: | |
978 | netif_napi_del(&c->napi); | |
979 | kfree(c); | |
980 | ||
981 | return err; | |
982 | } | |
983 | ||
984 | static void mlx5e_close_channel(struct mlx5e_channel *c) | |
985 | { | |
986 | mlx5e_close_rq(&c->rq); | |
987 | mlx5e_close_sqs(c); | |
988 | napi_disable(&c->napi); | |
989 | mlx5e_close_cq(&c->rq.cq); | |
990 | mlx5e_close_tx_cqs(c); | |
991 | netif_napi_del(&c->napi); | |
992 | kfree(c); | |
993 | } | |
994 | ||
995 | static void mlx5e_build_rq_param(struct mlx5e_priv *priv, | |
996 | struct mlx5e_rq_param *param) | |
997 | { | |
998 | void *rqc = param->rqc; | |
999 | void *wq = MLX5_ADDR_OF(rqc, rqc, wq); | |
1000 | ||
1001 | MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_LINKED_LIST); | |
1002 | MLX5_SET(wq, wq, end_padding_mode, MLX5_WQ_END_PAD_MODE_ALIGN); | |
1003 | MLX5_SET(wq, wq, log_wq_stride, ilog2(sizeof(struct mlx5e_rx_wqe))); | |
1004 | MLX5_SET(wq, wq, log_wq_sz, priv->params.log_rq_size); | |
1005 | MLX5_SET(wq, wq, pd, priv->pdn); | |
1006 | ||
1007 | param->wq.numa = dev_to_node(&priv->mdev->pdev->dev); | |
1008 | param->wq.linear = 1; | |
1009 | } | |
1010 | ||
1011 | static void mlx5e_build_sq_param(struct mlx5e_priv *priv, | |
1012 | struct mlx5e_sq_param *param) | |
1013 | { | |
1014 | void *sqc = param->sqc; | |
1015 | void *wq = MLX5_ADDR_OF(sqc, sqc, wq); | |
1016 | ||
1017 | MLX5_SET(wq, wq, log_wq_sz, priv->params.log_sq_size); | |
1018 | MLX5_SET(wq, wq, log_wq_stride, ilog2(MLX5_SEND_WQE_BB)); | |
1019 | MLX5_SET(wq, wq, pd, priv->pdn); | |
1020 | ||
1021 | param->wq.numa = dev_to_node(&priv->mdev->pdev->dev); | |
1022 | } | |
1023 | ||
1024 | static void mlx5e_build_common_cq_param(struct mlx5e_priv *priv, | |
1025 | struct mlx5e_cq_param *param) | |
1026 | { | |
1027 | void *cqc = param->cqc; | |
1028 | ||
1029 | MLX5_SET(cqc, cqc, uar_page, priv->cq_uar.index); | |
1030 | } | |
1031 | ||
1032 | static void mlx5e_build_rx_cq_param(struct mlx5e_priv *priv, | |
1033 | struct mlx5e_cq_param *param) | |
1034 | { | |
1035 | void *cqc = param->cqc; | |
1036 | ||
1037 | MLX5_SET(cqc, cqc, log_cq_size, priv->params.log_rq_size); | |
1038 | ||
1039 | mlx5e_build_common_cq_param(priv, param); | |
1040 | } | |
1041 | ||
1042 | static void mlx5e_build_tx_cq_param(struct mlx5e_priv *priv, | |
1043 | struct mlx5e_cq_param *param) | |
1044 | { | |
1045 | void *cqc = param->cqc; | |
1046 | ||
1047 | MLX5_SET(cqc, cqc, log_cq_size, priv->params.log_sq_size); | |
1048 | ||
1049 | mlx5e_build_common_cq_param(priv, param); | |
1050 | } | |
1051 | ||
1052 | static void mlx5e_build_channel_param(struct mlx5e_priv *priv, | |
1053 | struct mlx5e_channel_param *cparam) | |
1054 | { | |
1055 | memset(cparam, 0, sizeof(*cparam)); | |
1056 | ||
1057 | mlx5e_build_rq_param(priv, &cparam->rq); | |
1058 | mlx5e_build_sq_param(priv, &cparam->sq); | |
1059 | mlx5e_build_rx_cq_param(priv, &cparam->rx_cq); | |
1060 | mlx5e_build_tx_cq_param(priv, &cparam->tx_cq); | |
1061 | } | |
1062 | ||
1063 | static int mlx5e_open_channels(struct mlx5e_priv *priv) | |
1064 | { | |
1065 | struct mlx5e_channel_param cparam; | |
1066 | int err; | |
1067 | int i; | |
1068 | int j; | |
1069 | ||
1070 | priv->channel = kcalloc(priv->params.num_channels, | |
1071 | sizeof(struct mlx5e_channel *), GFP_KERNEL); | |
1072 | if (!priv->channel) | |
1073 | return -ENOMEM; | |
1074 | ||
1075 | mlx5e_build_channel_param(priv, &cparam); | |
1076 | for (i = 0; i < priv->params.num_channels; i++) { | |
1077 | err = mlx5e_open_channel(priv, i, &cparam, &priv->channel[i]); | |
1078 | if (err) | |
1079 | goto err_close_channels; | |
1080 | } | |
1081 | ||
1082 | for (j = 0; j < priv->params.num_channels; j++) { | |
1083 | err = mlx5e_wait_for_min_rx_wqes(&priv->channel[j]->rq); | |
1084 | if (err) | |
1085 | goto err_close_channels; | |
1086 | } | |
1087 | ||
1088 | return 0; | |
1089 | ||
1090 | err_close_channels: | |
1091 | for (i--; i >= 0; i--) | |
1092 | mlx5e_close_channel(priv->channel[i]); | |
1093 | ||
1094 | kfree(priv->channel); | |
1095 | ||
1096 | return err; | |
1097 | } | |
1098 | ||
1099 | static void mlx5e_close_channels(struct mlx5e_priv *priv) | |
1100 | { | |
1101 | int i; | |
1102 | ||
1103 | for (i = 0; i < priv->params.num_channels; i++) | |
1104 | mlx5e_close_channel(priv->channel[i]); | |
1105 | ||
1106 | kfree(priv->channel); | |
1107 | } | |
1108 | ||
1109 | static int mlx5e_open_tis(struct mlx5e_priv *priv, int tc) | |
1110 | { | |
1111 | struct mlx5_core_dev *mdev = priv->mdev; | |
1112 | u32 in[MLX5_ST_SZ_DW(create_tis_in)]; | |
1113 | void *tisc = MLX5_ADDR_OF(create_tis_in, in, ctx); | |
1114 | ||
1115 | memset(in, 0, sizeof(in)); | |
1116 | ||
1117 | MLX5_SET(tisc, tisc, prio, tc); | |
1118 | ||
7db22ffb | 1119 | return mlx5_core_create_tis(mdev, in, sizeof(in), &priv->tisn[tc]); |
f62b8bb8 AV |
1120 | } |
1121 | ||
1122 | static void mlx5e_close_tis(struct mlx5e_priv *priv, int tc) | |
1123 | { | |
7db22ffb | 1124 | mlx5_core_destroy_tis(priv->mdev, priv->tisn[tc]); |
f62b8bb8 AV |
1125 | } |
1126 | ||
1127 | static int mlx5e_open_tises(struct mlx5e_priv *priv) | |
1128 | { | |
1129 | int num_tc = priv->num_tc; | |
1130 | int err; | |
1131 | int tc; | |
1132 | ||
1133 | for (tc = 0; tc < num_tc; tc++) { | |
1134 | err = mlx5e_open_tis(priv, tc); | |
1135 | if (err) | |
1136 | goto err_close_tises; | |
1137 | } | |
1138 | ||
1139 | return 0; | |
1140 | ||
1141 | err_close_tises: | |
1142 | for (tc--; tc >= 0; tc--) | |
1143 | mlx5e_close_tis(priv, tc); | |
1144 | ||
1145 | return err; | |
1146 | } | |
1147 | ||
1148 | static void mlx5e_close_tises(struct mlx5e_priv *priv) | |
1149 | { | |
1150 | int num_tc = priv->num_tc; | |
1151 | int tc; | |
1152 | ||
1153 | for (tc = 0; tc < num_tc; tc++) | |
1154 | mlx5e_close_tis(priv, tc); | |
1155 | } | |
1156 | ||
1157 | static int mlx5e_open_rqt(struct mlx5e_priv *priv) | |
1158 | { | |
1159 | struct mlx5_core_dev *mdev = priv->mdev; | |
1160 | u32 *in; | |
1161 | u32 out[MLX5_ST_SZ_DW(create_rqt_out)]; | |
1162 | void *rqtc; | |
1163 | int inlen; | |
1164 | int err; | |
1165 | int sz; | |
1166 | int i; | |
1167 | ||
1168 | sz = 1 << priv->params.rx_hash_log_tbl_sz; | |
1169 | ||
1170 | inlen = MLX5_ST_SZ_BYTES(create_rqt_in) + sizeof(u32) * sz; | |
1171 | in = mlx5_vzalloc(inlen); | |
1172 | if (!in) | |
1173 | return -ENOMEM; | |
1174 | ||
1175 | rqtc = MLX5_ADDR_OF(create_rqt_in, in, rqt_context); | |
1176 | ||
1177 | MLX5_SET(rqtc, rqtc, rqt_actual_size, sz); | |
1178 | MLX5_SET(rqtc, rqtc, rqt_max_size, sz); | |
1179 | ||
1180 | for (i = 0; i < sz; i++) { | |
1181 | int ix = i % priv->params.num_channels; | |
1182 | ||
1183 | MLX5_SET(rqtc, rqtc, rq_num[i], priv->channel[ix]->rq.rqn); | |
1184 | } | |
1185 | ||
1186 | MLX5_SET(create_rqt_in, in, opcode, MLX5_CMD_OP_CREATE_RQT); | |
1187 | ||
1188 | memset(out, 0, sizeof(out)); | |
1189 | err = mlx5_cmd_exec_check_status(mdev, in, inlen, out, sizeof(out)); | |
1190 | if (!err) | |
1191 | priv->rqtn = MLX5_GET(create_rqt_out, out, rqtn); | |
1192 | ||
1193 | kvfree(in); | |
1194 | ||
1195 | return err; | |
1196 | } | |
1197 | ||
1198 | static void mlx5e_close_rqt(struct mlx5e_priv *priv) | |
1199 | { | |
1200 | u32 in[MLX5_ST_SZ_DW(destroy_rqt_in)]; | |
1201 | u32 out[MLX5_ST_SZ_DW(destroy_rqt_out)]; | |
1202 | ||
1203 | memset(in, 0, sizeof(in)); | |
1204 | ||
1205 | MLX5_SET(destroy_rqt_in, in, opcode, MLX5_CMD_OP_DESTROY_RQT); | |
1206 | MLX5_SET(destroy_rqt_in, in, rqtn, priv->rqtn); | |
1207 | ||
1208 | mlx5_cmd_exec_check_status(priv->mdev, in, sizeof(in), out, | |
1209 | sizeof(out)); | |
1210 | } | |
1211 | ||
1212 | static void mlx5e_build_tir_ctx(struct mlx5e_priv *priv, u32 *tirc, int tt) | |
1213 | { | |
1214 | void *hfso = MLX5_ADDR_OF(tirc, tirc, rx_hash_field_selector_outer); | |
1215 | ||
1216 | #define ROUGH_MAX_L2_L3_HDR_SZ 256 | |
1217 | ||
1218 | #define MLX5_HASH_IP (MLX5_HASH_FIELD_SEL_SRC_IP |\ | |
1219 | MLX5_HASH_FIELD_SEL_DST_IP) | |
1220 | ||
1221 | #define MLX5_HASH_ALL (MLX5_HASH_FIELD_SEL_SRC_IP |\ | |
1222 | MLX5_HASH_FIELD_SEL_DST_IP |\ | |
1223 | MLX5_HASH_FIELD_SEL_L4_SPORT |\ | |
1224 | MLX5_HASH_FIELD_SEL_L4_DPORT) | |
1225 | ||
1226 | if (priv->params.lro_en) { | |
1227 | MLX5_SET(tirc, tirc, lro_enable_mask, | |
1228 | MLX5_TIRC_LRO_ENABLE_MASK_IPV4_LRO | | |
1229 | MLX5_TIRC_LRO_ENABLE_MASK_IPV6_LRO); | |
1230 | MLX5_SET(tirc, tirc, lro_max_ip_payload_size, | |
1231 | (priv->params.lro_wqe_sz - | |
1232 | ROUGH_MAX_L2_L3_HDR_SZ) >> 8); | |
1233 | MLX5_SET(tirc, tirc, lro_timeout_period_usecs, | |
1234 | MLX5_CAP_ETH(priv->mdev, | |
1235 | lro_timer_supported_periods[3])); | |
1236 | } | |
1237 | ||
1238 | switch (tt) { | |
1239 | case MLX5E_TT_ANY: | |
1240 | MLX5_SET(tirc, tirc, disp_type, | |
1241 | MLX5_TIRC_DISP_TYPE_DIRECT); | |
1242 | MLX5_SET(tirc, tirc, inline_rqn, | |
1243 | priv->channel[0]->rq.rqn); | |
1244 | break; | |
1245 | default: | |
1246 | MLX5_SET(tirc, tirc, disp_type, | |
1247 | MLX5_TIRC_DISP_TYPE_INDIRECT); | |
1248 | MLX5_SET(tirc, tirc, indirect_table, | |
1249 | priv->rqtn); | |
1250 | MLX5_SET(tirc, tirc, rx_hash_fn, | |
1251 | MLX5_TIRC_RX_HASH_FN_HASH_TOEPLITZ); | |
1252 | MLX5_SET(tirc, tirc, rx_hash_symmetric, 1); | |
1253 | netdev_rss_key_fill(MLX5_ADDR_OF(tirc, tirc, | |
1254 | rx_hash_toeplitz_key), | |
1255 | MLX5_FLD_SZ_BYTES(tirc, | |
1256 | rx_hash_toeplitz_key)); | |
1257 | break; | |
1258 | } | |
1259 | ||
1260 | switch (tt) { | |
1261 | case MLX5E_TT_IPV4_TCP: | |
1262 | MLX5_SET(rx_hash_field_select, hfso, l3_prot_type, | |
1263 | MLX5_L3_PROT_TYPE_IPV4); | |
1264 | MLX5_SET(rx_hash_field_select, hfso, l4_prot_type, | |
1265 | MLX5_L4_PROT_TYPE_TCP); | |
1266 | MLX5_SET(rx_hash_field_select, hfso, selected_fields, | |
1267 | MLX5_HASH_ALL); | |
1268 | break; | |
1269 | ||
1270 | case MLX5E_TT_IPV6_TCP: | |
1271 | MLX5_SET(rx_hash_field_select, hfso, l3_prot_type, | |
1272 | MLX5_L3_PROT_TYPE_IPV6); | |
1273 | MLX5_SET(rx_hash_field_select, hfso, l4_prot_type, | |
1274 | MLX5_L4_PROT_TYPE_TCP); | |
1275 | MLX5_SET(rx_hash_field_select, hfso, selected_fields, | |
1276 | MLX5_HASH_ALL); | |
1277 | break; | |
1278 | ||
1279 | case MLX5E_TT_IPV4_UDP: | |
1280 | MLX5_SET(rx_hash_field_select, hfso, l3_prot_type, | |
1281 | MLX5_L3_PROT_TYPE_IPV4); | |
1282 | MLX5_SET(rx_hash_field_select, hfso, l4_prot_type, | |
1283 | MLX5_L4_PROT_TYPE_UDP); | |
1284 | MLX5_SET(rx_hash_field_select, hfso, selected_fields, | |
1285 | MLX5_HASH_ALL); | |
1286 | break; | |
1287 | ||
1288 | case MLX5E_TT_IPV6_UDP: | |
1289 | MLX5_SET(rx_hash_field_select, hfso, l3_prot_type, | |
1290 | MLX5_L3_PROT_TYPE_IPV6); | |
1291 | MLX5_SET(rx_hash_field_select, hfso, l4_prot_type, | |
1292 | MLX5_L4_PROT_TYPE_UDP); | |
1293 | MLX5_SET(rx_hash_field_select, hfso, selected_fields, | |
1294 | MLX5_HASH_ALL); | |
1295 | break; | |
1296 | ||
1297 | case MLX5E_TT_IPV4: | |
1298 | MLX5_SET(rx_hash_field_select, hfso, l3_prot_type, | |
1299 | MLX5_L3_PROT_TYPE_IPV4); | |
1300 | MLX5_SET(rx_hash_field_select, hfso, selected_fields, | |
1301 | MLX5_HASH_IP); | |
1302 | break; | |
1303 | ||
1304 | case MLX5E_TT_IPV6: | |
1305 | MLX5_SET(rx_hash_field_select, hfso, l3_prot_type, | |
1306 | MLX5_L3_PROT_TYPE_IPV6); | |
1307 | MLX5_SET(rx_hash_field_select, hfso, selected_fields, | |
1308 | MLX5_HASH_IP); | |
1309 | break; | |
1310 | } | |
1311 | } | |
1312 | ||
1313 | static int mlx5e_open_tir(struct mlx5e_priv *priv, int tt) | |
1314 | { | |
1315 | struct mlx5_core_dev *mdev = priv->mdev; | |
1316 | u32 *in; | |
1317 | void *tirc; | |
1318 | int inlen; | |
1319 | int err; | |
1320 | ||
1321 | inlen = MLX5_ST_SZ_BYTES(create_tir_in); | |
1322 | in = mlx5_vzalloc(inlen); | |
1323 | if (!in) | |
1324 | return -ENOMEM; | |
1325 | ||
1326 | tirc = MLX5_ADDR_OF(create_tir_in, in, ctx); | |
1327 | ||
1328 | mlx5e_build_tir_ctx(priv, tirc, tt); | |
1329 | ||
7db22ffb | 1330 | err = mlx5_core_create_tir(mdev, in, inlen, &priv->tirn[tt]); |
f62b8bb8 AV |
1331 | |
1332 | kvfree(in); | |
1333 | ||
1334 | return err; | |
1335 | } | |
1336 | ||
1337 | static void mlx5e_close_tir(struct mlx5e_priv *priv, int tt) | |
1338 | { | |
7db22ffb | 1339 | mlx5_core_destroy_tir(priv->mdev, priv->tirn[tt]); |
f62b8bb8 AV |
1340 | } |
1341 | ||
1342 | static int mlx5e_open_tirs(struct mlx5e_priv *priv) | |
1343 | { | |
1344 | int err; | |
1345 | int i; | |
1346 | ||
1347 | for (i = 0; i < MLX5E_NUM_TT; i++) { | |
1348 | err = mlx5e_open_tir(priv, i); | |
1349 | if (err) | |
1350 | goto err_close_tirs; | |
1351 | } | |
1352 | ||
1353 | return 0; | |
1354 | ||
1355 | err_close_tirs: | |
1356 | for (i--; i >= 0; i--) | |
1357 | mlx5e_close_tir(priv, i); | |
1358 | ||
1359 | return err; | |
1360 | } | |
1361 | ||
1362 | static void mlx5e_close_tirs(struct mlx5e_priv *priv) | |
1363 | { | |
1364 | int i; | |
1365 | ||
1366 | for (i = 0; i < MLX5E_NUM_TT; i++) | |
1367 | mlx5e_close_tir(priv, i); | |
1368 | } | |
1369 | ||
1370 | int mlx5e_open_locked(struct net_device *netdev) | |
1371 | { | |
1372 | struct mlx5e_priv *priv = netdev_priv(netdev); | |
1373 | struct mlx5_core_dev *mdev = priv->mdev; | |
1374 | int actual_mtu; | |
1375 | int num_txqs; | |
1376 | int err; | |
1377 | ||
1378 | num_txqs = roundup_pow_of_two(priv->params.num_channels) * | |
1379 | priv->params.num_tc; | |
1380 | netif_set_real_num_tx_queues(netdev, num_txqs); | |
1381 | netif_set_real_num_rx_queues(netdev, priv->params.num_channels); | |
1382 | ||
1383 | err = mlx5_set_port_mtu(mdev, netdev->mtu); | |
1384 | if (err) { | |
1385 | netdev_err(netdev, "%s: mlx5_set_port_mtu failed %d\n", | |
1386 | __func__, err); | |
1387 | return err; | |
1388 | } | |
1389 | ||
e760152d | 1390 | err = mlx5_query_port_oper_mtu(mdev, &actual_mtu, 1); |
f62b8bb8 AV |
1391 | if (err) { |
1392 | netdev_err(netdev, "%s: mlx5_query_port_oper_mtu failed %d\n", | |
1393 | __func__, err); | |
1394 | return err; | |
1395 | } | |
1396 | ||
1397 | if (actual_mtu != netdev->mtu) | |
1398 | netdev_warn(netdev, "%s: Failed to set MTU to %d\n", | |
1399 | __func__, netdev->mtu); | |
1400 | ||
1401 | netdev->mtu = actual_mtu; | |
1402 | ||
1403 | err = mlx5e_open_tises(priv); | |
1404 | if (err) { | |
1405 | netdev_err(netdev, "%s: mlx5e_open_tises failed, %d\n", | |
1406 | __func__, err); | |
1407 | return err; | |
1408 | } | |
1409 | ||
1410 | err = mlx5e_open_channels(priv); | |
1411 | if (err) { | |
1412 | netdev_err(netdev, "%s: mlx5e_open_channels failed, %d\n", | |
1413 | __func__, err); | |
1414 | goto err_close_tises; | |
1415 | } | |
1416 | ||
1417 | err = mlx5e_open_rqt(priv); | |
1418 | if (err) { | |
1419 | netdev_err(netdev, "%s: mlx5e_open_rqt failed, %d\n", | |
1420 | __func__, err); | |
1421 | goto err_close_channels; | |
1422 | } | |
1423 | ||
1424 | err = mlx5e_open_tirs(priv); | |
1425 | if (err) { | |
1426 | netdev_err(netdev, "%s: mlx5e_open_tir failed, %d\n", | |
1427 | __func__, err); | |
1428 | goto err_close_rqls; | |
1429 | } | |
1430 | ||
1431 | err = mlx5e_open_flow_table(priv); | |
1432 | if (err) { | |
1433 | netdev_err(netdev, "%s: mlx5e_open_flow_table failed, %d\n", | |
1434 | __func__, err); | |
1435 | goto err_close_tirs; | |
1436 | } | |
1437 | ||
1438 | err = mlx5e_add_all_vlan_rules(priv); | |
1439 | if (err) { | |
1440 | netdev_err(netdev, "%s: mlx5e_add_all_vlan_rules failed, %d\n", | |
1441 | __func__, err); | |
1442 | goto err_close_flow_table; | |
1443 | } | |
1444 | ||
1445 | mlx5e_init_eth_addr(priv); | |
1446 | ||
1447 | set_bit(MLX5E_STATE_OPENED, &priv->state); | |
1448 | ||
1449 | mlx5e_update_carrier(priv); | |
1450 | mlx5e_set_rx_mode_core(priv); | |
1451 | ||
1452 | schedule_delayed_work(&priv->update_stats_work, 0); | |
1453 | return 0; | |
1454 | ||
1455 | err_close_flow_table: | |
1456 | mlx5e_close_flow_table(priv); | |
1457 | ||
1458 | err_close_tirs: | |
1459 | mlx5e_close_tirs(priv); | |
1460 | ||
1461 | err_close_rqls: | |
1462 | mlx5e_close_rqt(priv); | |
1463 | ||
1464 | err_close_channels: | |
1465 | mlx5e_close_channels(priv); | |
1466 | ||
1467 | err_close_tises: | |
1468 | mlx5e_close_tises(priv); | |
1469 | ||
1470 | return err; | |
1471 | } | |
1472 | ||
1473 | static int mlx5e_open(struct net_device *netdev) | |
1474 | { | |
1475 | struct mlx5e_priv *priv = netdev_priv(netdev); | |
1476 | int err; | |
1477 | ||
1478 | mutex_lock(&priv->state_lock); | |
1479 | err = mlx5e_open_locked(netdev); | |
1480 | mutex_unlock(&priv->state_lock); | |
1481 | ||
1482 | return err; | |
1483 | } | |
1484 | ||
1485 | int mlx5e_close_locked(struct net_device *netdev) | |
1486 | { | |
1487 | struct mlx5e_priv *priv = netdev_priv(netdev); | |
1488 | ||
1489 | clear_bit(MLX5E_STATE_OPENED, &priv->state); | |
1490 | ||
1491 | mlx5e_set_rx_mode_core(priv); | |
1492 | mlx5e_del_all_vlan_rules(priv); | |
1493 | netif_carrier_off(priv->netdev); | |
1494 | mlx5e_close_flow_table(priv); | |
1495 | mlx5e_close_tirs(priv); | |
1496 | mlx5e_close_rqt(priv); | |
1497 | mlx5e_close_channels(priv); | |
1498 | mlx5e_close_tises(priv); | |
1499 | ||
1500 | return 0; | |
1501 | } | |
1502 | ||
1503 | static int mlx5e_close(struct net_device *netdev) | |
1504 | { | |
1505 | struct mlx5e_priv *priv = netdev_priv(netdev); | |
1506 | int err; | |
1507 | ||
1508 | mutex_lock(&priv->state_lock); | |
1509 | err = mlx5e_close_locked(netdev); | |
1510 | mutex_unlock(&priv->state_lock); | |
1511 | ||
1512 | return err; | |
1513 | } | |
1514 | ||
1515 | int mlx5e_update_priv_params(struct mlx5e_priv *priv, | |
1516 | struct mlx5e_params *new_params) | |
1517 | { | |
1518 | int err = 0; | |
1519 | int was_opened; | |
1520 | ||
1521 | WARN_ON(!mutex_is_locked(&priv->state_lock)); | |
1522 | ||
1523 | was_opened = test_bit(MLX5E_STATE_OPENED, &priv->state); | |
1524 | if (was_opened) | |
1525 | mlx5e_close_locked(priv->netdev); | |
1526 | ||
1527 | priv->params = *new_params; | |
1528 | ||
1529 | if (was_opened) | |
1530 | err = mlx5e_open_locked(priv->netdev); | |
1531 | ||
1532 | return err; | |
1533 | } | |
1534 | ||
1535 | static struct rtnl_link_stats64 * | |
1536 | mlx5e_get_stats(struct net_device *dev, struct rtnl_link_stats64 *stats) | |
1537 | { | |
1538 | struct mlx5e_priv *priv = netdev_priv(dev); | |
1539 | struct mlx5e_vport_stats *vstats = &priv->stats.vport; | |
1540 | ||
1541 | stats->rx_packets = vstats->rx_packets; | |
1542 | stats->rx_bytes = vstats->rx_bytes; | |
1543 | stats->tx_packets = vstats->tx_packets; | |
1544 | stats->tx_bytes = vstats->tx_bytes; | |
1545 | stats->multicast = vstats->rx_multicast_packets + | |
1546 | vstats->tx_multicast_packets; | |
1547 | stats->tx_errors = vstats->tx_error_packets; | |
1548 | stats->rx_errors = vstats->rx_error_packets; | |
1549 | stats->tx_dropped = vstats->tx_queue_dropped; | |
1550 | stats->rx_crc_errors = 0; | |
1551 | stats->rx_length_errors = 0; | |
1552 | ||
1553 | return stats; | |
1554 | } | |
1555 | ||
1556 | static void mlx5e_set_rx_mode(struct net_device *dev) | |
1557 | { | |
1558 | struct mlx5e_priv *priv = netdev_priv(dev); | |
1559 | ||
1560 | schedule_work(&priv->set_rx_mode_work); | |
1561 | } | |
1562 | ||
1563 | static int mlx5e_set_mac(struct net_device *netdev, void *addr) | |
1564 | { | |
1565 | struct mlx5e_priv *priv = netdev_priv(netdev); | |
1566 | struct sockaddr *saddr = addr; | |
1567 | ||
1568 | if (!is_valid_ether_addr(saddr->sa_data)) | |
1569 | return -EADDRNOTAVAIL; | |
1570 | ||
1571 | netif_addr_lock_bh(netdev); | |
1572 | ether_addr_copy(netdev->dev_addr, saddr->sa_data); | |
1573 | netif_addr_unlock_bh(netdev); | |
1574 | ||
1575 | schedule_work(&priv->set_rx_mode_work); | |
1576 | ||
1577 | return 0; | |
1578 | } | |
1579 | ||
1580 | static int mlx5e_set_features(struct net_device *netdev, | |
1581 | netdev_features_t features) | |
1582 | { | |
1583 | struct mlx5e_priv *priv = netdev_priv(netdev); | |
1584 | netdev_features_t changes = features ^ netdev->features; | |
1585 | struct mlx5e_params new_params; | |
1586 | bool update_params = false; | |
1587 | ||
1588 | mutex_lock(&priv->state_lock); | |
1589 | new_params = priv->params; | |
1590 | ||
1591 | if (changes & NETIF_F_LRO) { | |
1592 | new_params.lro_en = !!(features & NETIF_F_LRO); | |
1593 | update_params = true; | |
1594 | } | |
1595 | ||
1596 | if (update_params) | |
1597 | mlx5e_update_priv_params(priv, &new_params); | |
1598 | ||
1599 | if (changes & NETIF_F_HW_VLAN_CTAG_FILTER) { | |
1600 | if (features & NETIF_F_HW_VLAN_CTAG_FILTER) | |
1601 | mlx5e_enable_vlan_filter(priv); | |
1602 | else | |
1603 | mlx5e_disable_vlan_filter(priv); | |
1604 | } | |
1605 | ||
1606 | mutex_unlock(&priv->state_lock); | |
1607 | ||
1608 | return 0; | |
1609 | } | |
1610 | ||
1611 | static int mlx5e_change_mtu(struct net_device *netdev, int new_mtu) | |
1612 | { | |
1613 | struct mlx5e_priv *priv = netdev_priv(netdev); | |
1614 | struct mlx5_core_dev *mdev = priv->mdev; | |
1615 | int max_mtu; | |
1616 | int err = 0; | |
1617 | ||
e760152d | 1618 | err = mlx5_query_port_max_mtu(mdev, &max_mtu, 1); |
f62b8bb8 AV |
1619 | if (err) |
1620 | return err; | |
1621 | ||
1622 | if (new_mtu > max_mtu || new_mtu < MLX5E_PARAMS_MIN_MTU) { | |
1623 | netdev_err(netdev, "%s: Bad MTU size, mtu must be [%d-%d]\n", | |
1624 | __func__, MLX5E_PARAMS_MIN_MTU, max_mtu); | |
1625 | return -EINVAL; | |
1626 | } | |
1627 | ||
1628 | mutex_lock(&priv->state_lock); | |
1629 | netdev->mtu = new_mtu; | |
1630 | err = mlx5e_update_priv_params(priv, &priv->params); | |
1631 | mutex_unlock(&priv->state_lock); | |
1632 | ||
1633 | return err; | |
1634 | } | |
1635 | ||
1636 | static struct net_device_ops mlx5e_netdev_ops = { | |
1637 | .ndo_open = mlx5e_open, | |
1638 | .ndo_stop = mlx5e_close, | |
1639 | .ndo_start_xmit = mlx5e_xmit, | |
1640 | .ndo_get_stats64 = mlx5e_get_stats, | |
1641 | .ndo_set_rx_mode = mlx5e_set_rx_mode, | |
1642 | .ndo_set_mac_address = mlx5e_set_mac, | |
1643 | .ndo_vlan_rx_add_vid = mlx5e_vlan_rx_add_vid, | |
1644 | .ndo_vlan_rx_kill_vid = mlx5e_vlan_rx_kill_vid, | |
1645 | .ndo_set_features = mlx5e_set_features, | |
1646 | .ndo_change_mtu = mlx5e_change_mtu, | |
1647 | }; | |
1648 | ||
1649 | static int mlx5e_check_required_hca_cap(struct mlx5_core_dev *mdev) | |
1650 | { | |
1651 | if (MLX5_CAP_GEN(mdev, port_type) != MLX5_CAP_PORT_TYPE_ETH) | |
1652 | return -ENOTSUPP; | |
1653 | if (!MLX5_CAP_GEN(mdev, eth_net_offloads) || | |
1654 | !MLX5_CAP_GEN(mdev, nic_flow_table) || | |
1655 | !MLX5_CAP_ETH(mdev, csum_cap) || | |
1656 | !MLX5_CAP_ETH(mdev, max_lso_cap) || | |
1657 | !MLX5_CAP_ETH(mdev, vlan_cap) || | |
1658 | !MLX5_CAP_ETH(mdev, rss_ind_tbl_cap)) { | |
1659 | mlx5_core_warn(mdev, | |
1660 | "Not creating net device, some required device capabilities are missing\n"); | |
1661 | return -ENOTSUPP; | |
1662 | } | |
1663 | return 0; | |
1664 | } | |
1665 | ||
1666 | static void mlx5e_build_netdev_priv(struct mlx5_core_dev *mdev, | |
1667 | struct net_device *netdev, | |
1668 | int num_comp_vectors) | |
1669 | { | |
1670 | struct mlx5e_priv *priv = netdev_priv(netdev); | |
1671 | ||
1672 | priv->params.log_sq_size = | |
1673 | MLX5E_PARAMS_DEFAULT_LOG_SQ_SIZE; | |
1674 | priv->params.log_rq_size = | |
1675 | MLX5E_PARAMS_DEFAULT_LOG_RQ_SIZE; | |
1676 | priv->params.rx_cq_moderation_usec = | |
1677 | MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_USEC; | |
1678 | priv->params.rx_cq_moderation_pkts = | |
1679 | MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_PKTS; | |
1680 | priv->params.tx_cq_moderation_usec = | |
1681 | MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_USEC; | |
1682 | priv->params.tx_cq_moderation_pkts = | |
1683 | MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_PKTS; | |
1684 | priv->params.min_rx_wqes = | |
1685 | MLX5E_PARAMS_DEFAULT_MIN_RX_WQES; | |
1686 | priv->params.rx_hash_log_tbl_sz = | |
1687 | (order_base_2(num_comp_vectors) > | |
1688 | MLX5E_PARAMS_DEFAULT_RX_HASH_LOG_TBL_SZ) ? | |
1689 | order_base_2(num_comp_vectors) : | |
1690 | MLX5E_PARAMS_DEFAULT_RX_HASH_LOG_TBL_SZ; | |
1691 | priv->params.num_tc = 1; | |
1692 | priv->params.default_vlan_prio = 0; | |
1693 | ||
1694 | priv->params.lro_en = false && !!MLX5_CAP_ETH(priv->mdev, lro_cap); | |
1695 | priv->params.lro_wqe_sz = | |
1696 | MLX5E_PARAMS_DEFAULT_LRO_WQE_SZ; | |
1697 | ||
1698 | priv->mdev = mdev; | |
1699 | priv->netdev = netdev; | |
1700 | priv->params.num_channels = num_comp_vectors; | |
1701 | priv->order_base_2_num_channels = order_base_2(num_comp_vectors); | |
1702 | priv->queue_mapping_channel_mask = | |
1703 | roundup_pow_of_two(num_comp_vectors) - 1; | |
1704 | priv->num_tc = priv->params.num_tc; | |
1705 | priv->default_vlan_prio = priv->params.default_vlan_prio; | |
1706 | ||
1707 | spin_lock_init(&priv->async_events_spinlock); | |
1708 | mutex_init(&priv->state_lock); | |
1709 | ||
1710 | INIT_WORK(&priv->update_carrier_work, mlx5e_update_carrier_work); | |
1711 | INIT_WORK(&priv->set_rx_mode_work, mlx5e_set_rx_mode_work); | |
1712 | INIT_DELAYED_WORK(&priv->update_stats_work, mlx5e_update_stats_work); | |
1713 | } | |
1714 | ||
1715 | static void mlx5e_set_netdev_dev_addr(struct net_device *netdev) | |
1716 | { | |
1717 | struct mlx5e_priv *priv = netdev_priv(netdev); | |
1718 | ||
d18a9470 | 1719 | mlx5_query_nic_vport_mac_address(priv->mdev, netdev->dev_addr); |
f62b8bb8 AV |
1720 | } |
1721 | ||
1722 | static void mlx5e_build_netdev(struct net_device *netdev) | |
1723 | { | |
1724 | struct mlx5e_priv *priv = netdev_priv(netdev); | |
1725 | struct mlx5_core_dev *mdev = priv->mdev; | |
1726 | ||
1727 | SET_NETDEV_DEV(netdev, &mdev->pdev->dev); | |
1728 | ||
1729 | if (priv->num_tc > 1) { | |
1730 | mlx5e_netdev_ops.ndo_select_queue = mlx5e_select_queue; | |
1731 | mlx5e_netdev_ops.ndo_start_xmit = mlx5e_xmit_multi_tc; | |
1732 | } | |
1733 | ||
1734 | netdev->netdev_ops = &mlx5e_netdev_ops; | |
1735 | netdev->watchdog_timeo = 15 * HZ; | |
1736 | ||
1737 | netdev->ethtool_ops = &mlx5e_ethtool_ops; | |
1738 | ||
1739 | netdev->vlan_features |= NETIF_F_IP_CSUM; | |
1740 | netdev->vlan_features |= NETIF_F_IPV6_CSUM; | |
1741 | netdev->vlan_features |= NETIF_F_GRO; | |
1742 | netdev->vlan_features |= NETIF_F_TSO; | |
1743 | netdev->vlan_features |= NETIF_F_TSO6; | |
1744 | netdev->vlan_features |= NETIF_F_RXCSUM; | |
1745 | netdev->vlan_features |= NETIF_F_RXHASH; | |
1746 | ||
1747 | if (!!MLX5_CAP_ETH(mdev, lro_cap)) | |
1748 | netdev->vlan_features |= NETIF_F_LRO; | |
1749 | ||
1750 | netdev->hw_features = netdev->vlan_features; | |
1751 | netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_TX; | |
1752 | netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_RX; | |
1753 | netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_FILTER; | |
1754 | ||
1755 | netdev->features = netdev->hw_features; | |
1756 | if (!priv->params.lro_en) | |
1757 | netdev->features &= ~NETIF_F_LRO; | |
1758 | ||
1759 | netdev->features |= NETIF_F_HIGHDMA; | |
1760 | ||
1761 | netdev->priv_flags |= IFF_UNICAST_FLT; | |
1762 | ||
1763 | mlx5e_set_netdev_dev_addr(netdev); | |
1764 | } | |
1765 | ||
1766 | static int mlx5e_create_mkey(struct mlx5e_priv *priv, u32 pdn, | |
1767 | struct mlx5_core_mr *mr) | |
1768 | { | |
1769 | struct mlx5_core_dev *mdev = priv->mdev; | |
1770 | struct mlx5_create_mkey_mbox_in *in; | |
1771 | int err; | |
1772 | ||
1773 | in = mlx5_vzalloc(sizeof(*in)); | |
1774 | if (!in) | |
1775 | return -ENOMEM; | |
1776 | ||
1777 | in->seg.flags = MLX5_PERM_LOCAL_WRITE | | |
1778 | MLX5_PERM_LOCAL_READ | | |
1779 | MLX5_ACCESS_MODE_PA; | |
1780 | in->seg.flags_pd = cpu_to_be32(pdn | MLX5_MKEY_LEN64); | |
1781 | in->seg.qpn_mkey7_0 = cpu_to_be32(0xffffff << 8); | |
1782 | ||
1783 | err = mlx5_core_create_mkey(mdev, mr, in, sizeof(*in), NULL, NULL, | |
1784 | NULL); | |
1785 | ||
1786 | kvfree(in); | |
1787 | ||
1788 | return err; | |
1789 | } | |
1790 | ||
1791 | static void *mlx5e_create_netdev(struct mlx5_core_dev *mdev) | |
1792 | { | |
1793 | struct net_device *netdev; | |
1794 | struct mlx5e_priv *priv; | |
1795 | int ncv = mdev->priv.eq_table.num_comp_vectors; | |
1796 | int err; | |
1797 | ||
1798 | if (mlx5e_check_required_hca_cap(mdev)) | |
1799 | return NULL; | |
1800 | ||
1801 | netdev = alloc_etherdev_mqs(sizeof(struct mlx5e_priv), | |
1802 | roundup_pow_of_two(ncv) * MLX5E_MAX_NUM_TC, | |
1803 | ncv); | |
1804 | if (!netdev) { | |
1805 | mlx5_core_err(mdev, "alloc_etherdev_mqs() failed\n"); | |
1806 | return NULL; | |
1807 | } | |
1808 | ||
1809 | mlx5e_build_netdev_priv(mdev, netdev, ncv); | |
1810 | mlx5e_build_netdev(netdev); | |
1811 | ||
1812 | netif_carrier_off(netdev); | |
1813 | ||
1814 | priv = netdev_priv(netdev); | |
1815 | ||
1816 | err = mlx5_alloc_map_uar(mdev, &priv->cq_uar); | |
1817 | if (err) { | |
1818 | netdev_err(netdev, "%s: mlx5_alloc_map_uar failed, %d\n", | |
1819 | __func__, err); | |
1820 | goto err_free_netdev; | |
1821 | } | |
1822 | ||
1823 | err = mlx5_core_alloc_pd(mdev, &priv->pdn); | |
1824 | if (err) { | |
1825 | netdev_err(netdev, "%s: mlx5_core_alloc_pd failed, %d\n", | |
1826 | __func__, err); | |
1827 | goto err_unmap_free_uar; | |
1828 | } | |
1829 | ||
1830 | err = mlx5e_create_mkey(priv, priv->pdn, &priv->mr); | |
1831 | if (err) { | |
1832 | netdev_err(netdev, "%s: mlx5e_create_mkey failed, %d\n", | |
1833 | __func__, err); | |
1834 | goto err_dealloc_pd; | |
1835 | } | |
1836 | ||
1837 | err = register_netdev(netdev); | |
1838 | if (err) { | |
1839 | netdev_err(netdev, "%s: register_netdev failed, %d\n", | |
1840 | __func__, err); | |
1841 | goto err_destroy_mkey; | |
1842 | } | |
1843 | ||
1844 | mlx5e_enable_async_events(priv); | |
1845 | ||
1846 | return priv; | |
1847 | ||
1848 | err_destroy_mkey: | |
1849 | mlx5_core_destroy_mkey(mdev, &priv->mr); | |
1850 | ||
1851 | err_dealloc_pd: | |
1852 | mlx5_core_dealloc_pd(mdev, priv->pdn); | |
1853 | ||
1854 | err_unmap_free_uar: | |
1855 | mlx5_unmap_free_uar(mdev, &priv->cq_uar); | |
1856 | ||
1857 | err_free_netdev: | |
1858 | free_netdev(netdev); | |
1859 | ||
1860 | return NULL; | |
1861 | } | |
1862 | ||
1863 | static void mlx5e_destroy_netdev(struct mlx5_core_dev *mdev, void *vpriv) | |
1864 | { | |
1865 | struct mlx5e_priv *priv = vpriv; | |
1866 | struct net_device *netdev = priv->netdev; | |
1867 | ||
1868 | unregister_netdev(netdev); | |
1869 | mlx5_core_destroy_mkey(priv->mdev, &priv->mr); | |
1870 | mlx5_core_dealloc_pd(priv->mdev, priv->pdn); | |
1871 | mlx5_unmap_free_uar(priv->mdev, &priv->cq_uar); | |
1872 | mlx5e_disable_async_events(priv); | |
1873 | flush_scheduled_work(); | |
1874 | free_netdev(netdev); | |
1875 | } | |
1876 | ||
1877 | static void *mlx5e_get_netdev(void *vpriv) | |
1878 | { | |
1879 | struct mlx5e_priv *priv = vpriv; | |
1880 | ||
1881 | return priv->netdev; | |
1882 | } | |
1883 | ||
1884 | static struct mlx5_interface mlx5e_interface = { | |
1885 | .add = mlx5e_create_netdev, | |
1886 | .remove = mlx5e_destroy_netdev, | |
1887 | .event = mlx5e_async_event, | |
1888 | .protocol = MLX5_INTERFACE_PROTOCOL_ETH, | |
1889 | .get_dev = mlx5e_get_netdev, | |
1890 | }; | |
1891 | ||
1892 | void mlx5e_init(void) | |
1893 | { | |
1894 | mlx5_register_interface(&mlx5e_interface); | |
1895 | } | |
1896 | ||
1897 | void mlx5e_cleanup(void) | |
1898 | { | |
1899 | mlx5_unregister_interface(&mlx5e_interface); | |
1900 | } |