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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
[mirror_ubuntu-bionic-kernel.git] / drivers / net / ethernet / mellanox / mlx5 / core / en_main.c
1 /*
2 * Copyright (c) 2015-2016, Mellanox Technologies. All rights reserved.
3 *
4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
9 *
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
12 * conditions are met:
13 *
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
16 * disclaimer.
17 *
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and/or other materials
21 * provided with the distribution.
22 *
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30 * SOFTWARE.
31 */
32
33 #include <net/tc_act/tc_gact.h>
34 #include <linux/crash_dump.h>
35 #include <net/pkt_cls.h>
36 #include <linux/mlx5/fs.h>
37 #include <net/vxlan.h>
38 #include <linux/bpf.h>
39 #include "en.h"
40 #include "en_tc.h"
41 #include "eswitch.h"
42 #include "vxlan.h"
43
44 struct mlx5e_rq_param {
45 u32 rqc[MLX5_ST_SZ_DW(rqc)];
46 struct mlx5_wq_param wq;
47 bool am_enabled;
48 };
49
50 struct mlx5e_sq_param {
51 u32 sqc[MLX5_ST_SZ_DW(sqc)];
52 struct mlx5_wq_param wq;
53 u16 max_inline;
54 u8 min_inline_mode;
55 enum mlx5e_sq_type type;
56 };
57
58 struct mlx5e_cq_param {
59 u32 cqc[MLX5_ST_SZ_DW(cqc)];
60 struct mlx5_wq_param wq;
61 u16 eq_ix;
62 u8 cq_period_mode;
63 };
64
65 struct mlx5e_channel_param {
66 struct mlx5e_rq_param rq;
67 struct mlx5e_sq_param sq;
68 struct mlx5e_sq_param xdp_sq;
69 struct mlx5e_sq_param icosq;
70 struct mlx5e_cq_param rx_cq;
71 struct mlx5e_cq_param tx_cq;
72 struct mlx5e_cq_param icosq_cq;
73 };
74
75 static bool mlx5e_check_fragmented_striding_rq_cap(struct mlx5_core_dev *mdev)
76 {
77 return MLX5_CAP_GEN(mdev, striding_rq) &&
78 MLX5_CAP_GEN(mdev, umr_ptr_rlky) &&
79 MLX5_CAP_ETH(mdev, reg_umr_sq);
80 }
81
82 void mlx5e_set_rq_type_params(struct mlx5e_priv *priv, u8 rq_type)
83 {
84 priv->params.rq_wq_type = rq_type;
85 priv->params.lro_wqe_sz = MLX5E_PARAMS_DEFAULT_LRO_WQE_SZ;
86 switch (priv->params.rq_wq_type) {
87 case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ:
88 priv->params.log_rq_size = is_kdump_kernel() ?
89 MLX5E_PARAMS_MINIMUM_LOG_RQ_SIZE_MPW :
90 MLX5E_PARAMS_DEFAULT_LOG_RQ_SIZE_MPW;
91 priv->params.mpwqe_log_stride_sz =
92 MLX5E_GET_PFLAG(priv, MLX5E_PFLAG_RX_CQE_COMPRESS) ?
93 MLX5_MPWRQ_CQE_CMPRS_LOG_STRIDE_SZ(priv->mdev) :
94 MLX5_MPWRQ_DEF_LOG_STRIDE_SZ(priv->mdev);
95 priv->params.mpwqe_log_num_strides = MLX5_MPWRQ_LOG_WQE_SZ -
96 priv->params.mpwqe_log_stride_sz;
97 break;
98 default: /* MLX5_WQ_TYPE_LINKED_LIST */
99 priv->params.log_rq_size = is_kdump_kernel() ?
100 MLX5E_PARAMS_MINIMUM_LOG_RQ_SIZE :
101 MLX5E_PARAMS_DEFAULT_LOG_RQ_SIZE;
102
103 /* Extra room needed for build_skb */
104 priv->params.lro_wqe_sz -= MLX5_RX_HEADROOM +
105 SKB_DATA_ALIGN(sizeof(struct skb_shared_info));
106 }
107 priv->params.min_rx_wqes = mlx5_min_rx_wqes(priv->params.rq_wq_type,
108 BIT(priv->params.log_rq_size));
109
110 mlx5_core_info(priv->mdev,
111 "MLX5E: StrdRq(%d) RqSz(%ld) StrdSz(%ld) RxCqeCmprss(%d)\n",
112 priv->params.rq_wq_type == MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ,
113 BIT(priv->params.log_rq_size),
114 BIT(priv->params.mpwqe_log_stride_sz),
115 MLX5E_GET_PFLAG(priv, MLX5E_PFLAG_RX_CQE_COMPRESS));
116 }
117
118 static void mlx5e_set_rq_priv_params(struct mlx5e_priv *priv)
119 {
120 u8 rq_type = mlx5e_check_fragmented_striding_rq_cap(priv->mdev) &&
121 !priv->xdp_prog ?
122 MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ :
123 MLX5_WQ_TYPE_LINKED_LIST;
124 mlx5e_set_rq_type_params(priv, rq_type);
125 }
126
127 static void mlx5e_update_carrier(struct mlx5e_priv *priv)
128 {
129 struct mlx5_core_dev *mdev = priv->mdev;
130 u8 port_state;
131
132 port_state = mlx5_query_vport_state(mdev,
133 MLX5_QUERY_VPORT_STATE_IN_OP_MOD_VNIC_VPORT, 0);
134
135 if (port_state == VPORT_STATE_UP) {
136 netdev_info(priv->netdev, "Link up\n");
137 netif_carrier_on(priv->netdev);
138 } else {
139 netdev_info(priv->netdev, "Link down\n");
140 netif_carrier_off(priv->netdev);
141 }
142 }
143
144 static void mlx5e_update_carrier_work(struct work_struct *work)
145 {
146 struct mlx5e_priv *priv = container_of(work, struct mlx5e_priv,
147 update_carrier_work);
148
149 mutex_lock(&priv->state_lock);
150 if (test_bit(MLX5E_STATE_OPENED, &priv->state))
151 mlx5e_update_carrier(priv);
152 mutex_unlock(&priv->state_lock);
153 }
154
155 static void mlx5e_tx_timeout_work(struct work_struct *work)
156 {
157 struct mlx5e_priv *priv = container_of(work, struct mlx5e_priv,
158 tx_timeout_work);
159 int err;
160
161 rtnl_lock();
162 mutex_lock(&priv->state_lock);
163 if (!test_bit(MLX5E_STATE_OPENED, &priv->state))
164 goto unlock;
165 mlx5e_close_locked(priv->netdev);
166 err = mlx5e_open_locked(priv->netdev);
167 if (err)
168 netdev_err(priv->netdev, "mlx5e_open_locked failed recovering from a tx_timeout, err(%d).\n",
169 err);
170 unlock:
171 mutex_unlock(&priv->state_lock);
172 rtnl_unlock();
173 }
174
175 static void mlx5e_update_sw_counters(struct mlx5e_priv *priv)
176 {
177 struct mlx5e_sw_stats *s = &priv->stats.sw;
178 struct mlx5e_rq_stats *rq_stats;
179 struct mlx5e_sq_stats *sq_stats;
180 u64 tx_offload_none = 0;
181 int i, j;
182
183 memset(s, 0, sizeof(*s));
184 for (i = 0; i < priv->params.num_channels; i++) {
185 rq_stats = &priv->channel[i]->rq.stats;
186
187 s->rx_packets += rq_stats->packets;
188 s->rx_bytes += rq_stats->bytes;
189 s->rx_lro_packets += rq_stats->lro_packets;
190 s->rx_lro_bytes += rq_stats->lro_bytes;
191 s->rx_csum_none += rq_stats->csum_none;
192 s->rx_csum_complete += rq_stats->csum_complete;
193 s->rx_csum_unnecessary_inner += rq_stats->csum_unnecessary_inner;
194 s->rx_xdp_drop += rq_stats->xdp_drop;
195 s->rx_xdp_tx += rq_stats->xdp_tx;
196 s->rx_xdp_tx_full += rq_stats->xdp_tx_full;
197 s->rx_wqe_err += rq_stats->wqe_err;
198 s->rx_mpwqe_filler += rq_stats->mpwqe_filler;
199 s->rx_buff_alloc_err += rq_stats->buff_alloc_err;
200 s->rx_cqe_compress_blks += rq_stats->cqe_compress_blks;
201 s->rx_cqe_compress_pkts += rq_stats->cqe_compress_pkts;
202 s->rx_cache_reuse += rq_stats->cache_reuse;
203 s->rx_cache_full += rq_stats->cache_full;
204 s->rx_cache_empty += rq_stats->cache_empty;
205 s->rx_cache_busy += rq_stats->cache_busy;
206
207 for (j = 0; j < priv->params.num_tc; j++) {
208 sq_stats = &priv->channel[i]->sq[j].stats;
209
210 s->tx_packets += sq_stats->packets;
211 s->tx_bytes += sq_stats->bytes;
212 s->tx_tso_packets += sq_stats->tso_packets;
213 s->tx_tso_bytes += sq_stats->tso_bytes;
214 s->tx_tso_inner_packets += sq_stats->tso_inner_packets;
215 s->tx_tso_inner_bytes += sq_stats->tso_inner_bytes;
216 s->tx_queue_stopped += sq_stats->stopped;
217 s->tx_queue_wake += sq_stats->wake;
218 s->tx_queue_dropped += sq_stats->dropped;
219 s->tx_xmit_more += sq_stats->xmit_more;
220 s->tx_csum_partial_inner += sq_stats->csum_partial_inner;
221 tx_offload_none += sq_stats->csum_none;
222 }
223 }
224
225 /* Update calculated offload counters */
226 s->tx_csum_partial = s->tx_packets - tx_offload_none - s->tx_csum_partial_inner;
227 s->rx_csum_unnecessary = s->rx_packets - s->rx_csum_none - s->rx_csum_complete;
228
229 s->link_down_events_phy = MLX5_GET(ppcnt_reg,
230 priv->stats.pport.phy_counters,
231 counter_set.phys_layer_cntrs.link_down_events);
232 }
233
234 static void mlx5e_update_vport_counters(struct mlx5e_priv *priv)
235 {
236 int outlen = MLX5_ST_SZ_BYTES(query_vport_counter_out);
237 u32 *out = (u32 *)priv->stats.vport.query_vport_out;
238 u32 in[MLX5_ST_SZ_DW(query_vport_counter_in)] = {0};
239 struct mlx5_core_dev *mdev = priv->mdev;
240
241 MLX5_SET(query_vport_counter_in, in, opcode,
242 MLX5_CMD_OP_QUERY_VPORT_COUNTER);
243 MLX5_SET(query_vport_counter_in, in, op_mod, 0);
244 MLX5_SET(query_vport_counter_in, in, other_vport, 0);
245
246 memset(out, 0, outlen);
247 mlx5_cmd_exec(mdev, in, sizeof(in), out, outlen);
248 }
249
250 static void mlx5e_update_pport_counters(struct mlx5e_priv *priv)
251 {
252 struct mlx5e_pport_stats *pstats = &priv->stats.pport;
253 struct mlx5_core_dev *mdev = priv->mdev;
254 int sz = MLX5_ST_SZ_BYTES(ppcnt_reg);
255 int prio;
256 void *out;
257 u32 *in;
258
259 in = mlx5_vzalloc(sz);
260 if (!in)
261 goto free_out;
262
263 MLX5_SET(ppcnt_reg, in, local_port, 1);
264
265 out = pstats->IEEE_802_3_counters;
266 MLX5_SET(ppcnt_reg, in, grp, MLX5_IEEE_802_3_COUNTERS_GROUP);
267 mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0);
268
269 out = pstats->RFC_2863_counters;
270 MLX5_SET(ppcnt_reg, in, grp, MLX5_RFC_2863_COUNTERS_GROUP);
271 mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0);
272
273 out = pstats->RFC_2819_counters;
274 MLX5_SET(ppcnt_reg, in, grp, MLX5_RFC_2819_COUNTERS_GROUP);
275 mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0);
276
277 out = pstats->phy_counters;
278 MLX5_SET(ppcnt_reg, in, grp, MLX5_PHYSICAL_LAYER_COUNTERS_GROUP);
279 mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0);
280
281 if (MLX5_CAP_PCAM_FEATURE(mdev, ppcnt_statistical_group)) {
282 out = pstats->phy_statistical_counters;
283 MLX5_SET(ppcnt_reg, in, grp, MLX5_PHYSICAL_LAYER_STATISTICAL_GROUP);
284 mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0);
285 }
286
287 MLX5_SET(ppcnt_reg, in, grp, MLX5_PER_PRIORITY_COUNTERS_GROUP);
288 for (prio = 0; prio < NUM_PPORT_PRIO; prio++) {
289 out = pstats->per_prio_counters[prio];
290 MLX5_SET(ppcnt_reg, in, prio_tc, prio);
291 mlx5_core_access_reg(mdev, in, sz, out, sz,
292 MLX5_REG_PPCNT, 0, 0);
293 }
294
295 free_out:
296 kvfree(in);
297 }
298
299 static void mlx5e_update_q_counter(struct mlx5e_priv *priv)
300 {
301 struct mlx5e_qcounter_stats *qcnt = &priv->stats.qcnt;
302
303 if (!priv->q_counter)
304 return;
305
306 mlx5_core_query_out_of_buffer(priv->mdev, priv->q_counter,
307 &qcnt->rx_out_of_buffer);
308 }
309
310 static void mlx5e_update_pcie_counters(struct mlx5e_priv *priv)
311 {
312 struct mlx5e_pcie_stats *pcie_stats = &priv->stats.pcie;
313 struct mlx5_core_dev *mdev = priv->mdev;
314 int sz = MLX5_ST_SZ_BYTES(mpcnt_reg);
315 void *out;
316 u32 *in;
317
318 if (!MLX5_CAP_MCAM_FEATURE(mdev, pcie_performance_group))
319 return;
320
321 in = mlx5_vzalloc(sz);
322 if (!in)
323 return;
324
325 out = pcie_stats->pcie_perf_counters;
326 MLX5_SET(mpcnt_reg, in, grp, MLX5_PCIE_PERFORMANCE_COUNTERS_GROUP);
327 mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_MPCNT, 0, 0);
328
329 kvfree(in);
330 }
331
332 void mlx5e_update_stats(struct mlx5e_priv *priv)
333 {
334 mlx5e_update_pcie_counters(priv);
335 mlx5e_update_pport_counters(priv);
336 mlx5e_update_vport_counters(priv);
337 mlx5e_update_q_counter(priv);
338 mlx5e_update_sw_counters(priv);
339 }
340
341 void mlx5e_update_stats_work(struct work_struct *work)
342 {
343 struct delayed_work *dwork = to_delayed_work(work);
344 struct mlx5e_priv *priv = container_of(dwork, struct mlx5e_priv,
345 update_stats_work);
346 mutex_lock(&priv->state_lock);
347 if (test_bit(MLX5E_STATE_OPENED, &priv->state)) {
348 priv->profile->update_stats(priv);
349 queue_delayed_work(priv->wq, dwork,
350 msecs_to_jiffies(MLX5E_UPDATE_STATS_INTERVAL));
351 }
352 mutex_unlock(&priv->state_lock);
353 }
354
355 static void mlx5e_async_event(struct mlx5_core_dev *mdev, void *vpriv,
356 enum mlx5_dev_event event, unsigned long param)
357 {
358 struct mlx5e_priv *priv = vpriv;
359 struct ptp_clock_event ptp_event;
360 struct mlx5_eqe *eqe = NULL;
361
362 if (!test_bit(MLX5E_STATE_ASYNC_EVENTS_ENABLED, &priv->state))
363 return;
364
365 switch (event) {
366 case MLX5_DEV_EVENT_PORT_UP:
367 case MLX5_DEV_EVENT_PORT_DOWN:
368 queue_work(priv->wq, &priv->update_carrier_work);
369 break;
370 case MLX5_DEV_EVENT_PPS:
371 eqe = (struct mlx5_eqe *)param;
372 ptp_event.type = PTP_CLOCK_EXTTS;
373 ptp_event.index = eqe->data.pps.pin;
374 ptp_event.timestamp =
375 timecounter_cyc2time(&priv->tstamp.clock,
376 be64_to_cpu(eqe->data.pps.time_stamp));
377 mlx5e_pps_event_handler(vpriv, &ptp_event);
378 break;
379 default:
380 break;
381 }
382 }
383
384 static void mlx5e_enable_async_events(struct mlx5e_priv *priv)
385 {
386 set_bit(MLX5E_STATE_ASYNC_EVENTS_ENABLED, &priv->state);
387 }
388
389 static void mlx5e_disable_async_events(struct mlx5e_priv *priv)
390 {
391 clear_bit(MLX5E_STATE_ASYNC_EVENTS_ENABLED, &priv->state);
392 synchronize_irq(mlx5_get_msix_vec(priv->mdev, MLX5_EQ_VEC_ASYNC));
393 }
394
395 static inline int mlx5e_get_wqe_mtt_sz(void)
396 {
397 /* UMR copies MTTs in units of MLX5_UMR_MTT_ALIGNMENT bytes.
398 * To avoid copying garbage after the mtt array, we allocate
399 * a little more.
400 */
401 return ALIGN(MLX5_MPWRQ_PAGES_PER_WQE * sizeof(__be64),
402 MLX5_UMR_MTT_ALIGNMENT);
403 }
404
405 static inline void mlx5e_build_umr_wqe(struct mlx5e_rq *rq, struct mlx5e_sq *sq,
406 struct mlx5e_umr_wqe *wqe, u16 ix)
407 {
408 struct mlx5_wqe_ctrl_seg *cseg = &wqe->ctrl;
409 struct mlx5_wqe_umr_ctrl_seg *ucseg = &wqe->uctrl;
410 struct mlx5_wqe_data_seg *dseg = &wqe->data;
411 struct mlx5e_mpw_info *wi = &rq->mpwqe.info[ix];
412 u8 ds_cnt = DIV_ROUND_UP(sizeof(*wqe), MLX5_SEND_WQE_DS);
413 u32 umr_wqe_mtt_offset = mlx5e_get_wqe_mtt_offset(rq, ix);
414
415 cseg->qpn_ds = cpu_to_be32((sq->sqn << MLX5_WQE_CTRL_QPN_SHIFT) |
416 ds_cnt);
417 cseg->fm_ce_se = MLX5_WQE_CTRL_CQ_UPDATE;
418 cseg->imm = rq->mkey_be;
419
420 ucseg->flags = MLX5_UMR_TRANSLATION_OFFSET_EN;
421 ucseg->xlt_octowords =
422 cpu_to_be16(MLX5_MTT_OCTW(MLX5_MPWRQ_PAGES_PER_WQE));
423 ucseg->bsf_octowords =
424 cpu_to_be16(MLX5_MTT_OCTW(umr_wqe_mtt_offset));
425 ucseg->mkey_mask = cpu_to_be64(MLX5_MKEY_MASK_FREE);
426
427 dseg->lkey = sq->mkey_be;
428 dseg->addr = cpu_to_be64(wi->umr.mtt_addr);
429 }
430
431 static int mlx5e_rq_alloc_mpwqe_info(struct mlx5e_rq *rq,
432 struct mlx5e_channel *c)
433 {
434 int wq_sz = mlx5_wq_ll_get_size(&rq->wq);
435 int mtt_sz = mlx5e_get_wqe_mtt_sz();
436 int mtt_alloc = mtt_sz + MLX5_UMR_ALIGN - 1;
437 int i;
438
439 rq->mpwqe.info = kzalloc_node(wq_sz * sizeof(*rq->mpwqe.info),
440 GFP_KERNEL, cpu_to_node(c->cpu));
441 if (!rq->mpwqe.info)
442 goto err_out;
443
444 /* We allocate more than mtt_sz as we will align the pointer */
445 rq->mpwqe.mtt_no_align = kzalloc_node(mtt_alloc * wq_sz, GFP_KERNEL,
446 cpu_to_node(c->cpu));
447 if (unlikely(!rq->mpwqe.mtt_no_align))
448 goto err_free_wqe_info;
449
450 for (i = 0; i < wq_sz; i++) {
451 struct mlx5e_mpw_info *wi = &rq->mpwqe.info[i];
452
453 wi->umr.mtt = PTR_ALIGN(rq->mpwqe.mtt_no_align + i * mtt_alloc,
454 MLX5_UMR_ALIGN);
455 wi->umr.mtt_addr = dma_map_single(c->pdev, wi->umr.mtt, mtt_sz,
456 PCI_DMA_TODEVICE);
457 if (unlikely(dma_mapping_error(c->pdev, wi->umr.mtt_addr)))
458 goto err_unmap_mtts;
459
460 mlx5e_build_umr_wqe(rq, &c->icosq, &wi->umr.wqe, i);
461 }
462
463 return 0;
464
465 err_unmap_mtts:
466 while (--i >= 0) {
467 struct mlx5e_mpw_info *wi = &rq->mpwqe.info[i];
468
469 dma_unmap_single(c->pdev, wi->umr.mtt_addr, mtt_sz,
470 PCI_DMA_TODEVICE);
471 }
472 kfree(rq->mpwqe.mtt_no_align);
473 err_free_wqe_info:
474 kfree(rq->mpwqe.info);
475
476 err_out:
477 return -ENOMEM;
478 }
479
480 static void mlx5e_rq_free_mpwqe_info(struct mlx5e_rq *rq)
481 {
482 int wq_sz = mlx5_wq_ll_get_size(&rq->wq);
483 int mtt_sz = mlx5e_get_wqe_mtt_sz();
484 int i;
485
486 for (i = 0; i < wq_sz; i++) {
487 struct mlx5e_mpw_info *wi = &rq->mpwqe.info[i];
488
489 dma_unmap_single(rq->pdev, wi->umr.mtt_addr, mtt_sz,
490 PCI_DMA_TODEVICE);
491 }
492 kfree(rq->mpwqe.mtt_no_align);
493 kfree(rq->mpwqe.info);
494 }
495
496 static int mlx5e_create_umr_mkey(struct mlx5e_priv *priv,
497 u64 npages, u8 page_shift,
498 struct mlx5_core_mkey *umr_mkey)
499 {
500 struct mlx5_core_dev *mdev = priv->mdev;
501 int inlen = MLX5_ST_SZ_BYTES(create_mkey_in);
502 void *mkc;
503 u32 *in;
504 int err;
505
506 if (!MLX5E_VALID_NUM_MTTS(npages))
507 return -EINVAL;
508
509 in = mlx5_vzalloc(inlen);
510 if (!in)
511 return -ENOMEM;
512
513 mkc = MLX5_ADDR_OF(create_mkey_in, in, memory_key_mkey_entry);
514
515 MLX5_SET(mkc, mkc, free, 1);
516 MLX5_SET(mkc, mkc, umr_en, 1);
517 MLX5_SET(mkc, mkc, lw, 1);
518 MLX5_SET(mkc, mkc, lr, 1);
519 MLX5_SET(mkc, mkc, access_mode, MLX5_MKC_ACCESS_MODE_MTT);
520
521 MLX5_SET(mkc, mkc, qpn, 0xffffff);
522 MLX5_SET(mkc, mkc, pd, mdev->mlx5e_res.pdn);
523 MLX5_SET64(mkc, mkc, len, npages << page_shift);
524 MLX5_SET(mkc, mkc, translations_octword_size,
525 MLX5_MTT_OCTW(npages));
526 MLX5_SET(mkc, mkc, log_page_size, page_shift);
527
528 err = mlx5_core_create_mkey(mdev, umr_mkey, in, inlen);
529
530 kvfree(in);
531 return err;
532 }
533
534 static int mlx5e_create_rq_umr_mkey(struct mlx5e_rq *rq)
535 {
536 struct mlx5e_priv *priv = rq->priv;
537 u64 num_mtts = MLX5E_REQUIRED_MTTS(BIT(priv->params.log_rq_size));
538
539 return mlx5e_create_umr_mkey(priv, num_mtts, PAGE_SHIFT, &rq->umr_mkey);
540 }
541
542 static int mlx5e_create_rq(struct mlx5e_channel *c,
543 struct mlx5e_rq_param *param,
544 struct mlx5e_rq *rq)
545 {
546 struct mlx5e_priv *priv = c->priv;
547 struct mlx5_core_dev *mdev = priv->mdev;
548 void *rqc = param->rqc;
549 void *rqc_wq = MLX5_ADDR_OF(rqc, rqc, wq);
550 u32 byte_count;
551 u32 frag_sz;
552 int npages;
553 int wq_sz;
554 int err;
555 int i;
556
557 param->wq.db_numa_node = cpu_to_node(c->cpu);
558
559 err = mlx5_wq_ll_create(mdev, &param->wq, rqc_wq, &rq->wq,
560 &rq->wq_ctrl);
561 if (err)
562 return err;
563
564 rq->wq.db = &rq->wq.db[MLX5_RCV_DBR];
565
566 wq_sz = mlx5_wq_ll_get_size(&rq->wq);
567
568 rq->wq_type = priv->params.rq_wq_type;
569 rq->pdev = c->pdev;
570 rq->netdev = c->netdev;
571 rq->tstamp = &priv->tstamp;
572 rq->channel = c;
573 rq->ix = c->ix;
574 rq->priv = c->priv;
575
576 rq->xdp_prog = priv->xdp_prog ? bpf_prog_inc(priv->xdp_prog) : NULL;
577 if (IS_ERR(rq->xdp_prog)) {
578 err = PTR_ERR(rq->xdp_prog);
579 rq->xdp_prog = NULL;
580 goto err_rq_wq_destroy;
581 }
582
583 if (rq->xdp_prog) {
584 rq->buff.map_dir = DMA_BIDIRECTIONAL;
585 rq->rx_headroom = XDP_PACKET_HEADROOM;
586 } else {
587 rq->buff.map_dir = DMA_FROM_DEVICE;
588 rq->rx_headroom = MLX5_RX_HEADROOM;
589 }
590
591 switch (priv->params.rq_wq_type) {
592 case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ:
593 if (mlx5e_is_vf_vport_rep(priv)) {
594 err = -EINVAL;
595 goto err_rq_wq_destroy;
596 }
597
598 rq->handle_rx_cqe = mlx5e_handle_rx_cqe_mpwrq;
599 rq->alloc_wqe = mlx5e_alloc_rx_mpwqe;
600 rq->dealloc_wqe = mlx5e_dealloc_rx_mpwqe;
601
602 rq->mpwqe_stride_sz = BIT(priv->params.mpwqe_log_stride_sz);
603 rq->mpwqe_num_strides = BIT(priv->params.mpwqe_log_num_strides);
604
605 rq->buff.wqe_sz = rq->mpwqe_stride_sz * rq->mpwqe_num_strides;
606 byte_count = rq->buff.wqe_sz;
607
608 err = mlx5e_create_rq_umr_mkey(rq);
609 if (err)
610 goto err_rq_wq_destroy;
611 rq->mkey_be = cpu_to_be32(rq->umr_mkey.key);
612
613 err = mlx5e_rq_alloc_mpwqe_info(rq, c);
614 if (err)
615 goto err_destroy_umr_mkey;
616 break;
617 default: /* MLX5_WQ_TYPE_LINKED_LIST */
618 rq->dma_info = kzalloc_node(wq_sz * sizeof(*rq->dma_info),
619 GFP_KERNEL, cpu_to_node(c->cpu));
620 if (!rq->dma_info) {
621 err = -ENOMEM;
622 goto err_rq_wq_destroy;
623 }
624
625 if (mlx5e_is_vf_vport_rep(priv))
626 rq->handle_rx_cqe = mlx5e_handle_rx_cqe_rep;
627 else
628 rq->handle_rx_cqe = mlx5e_handle_rx_cqe;
629
630 rq->alloc_wqe = mlx5e_alloc_rx_wqe;
631 rq->dealloc_wqe = mlx5e_dealloc_rx_wqe;
632
633 rq->buff.wqe_sz = (priv->params.lro_en) ?
634 priv->params.lro_wqe_sz :
635 MLX5E_SW2HW_MTU(priv->netdev->mtu);
636 byte_count = rq->buff.wqe_sz;
637
638 /* calc the required page order */
639 frag_sz = rq->rx_headroom +
640 byte_count /* packet data */ +
641 SKB_DATA_ALIGN(sizeof(struct skb_shared_info));
642 frag_sz = SKB_DATA_ALIGN(frag_sz);
643
644 npages = DIV_ROUND_UP(frag_sz, PAGE_SIZE);
645 rq->buff.page_order = order_base_2(npages);
646
647 byte_count |= MLX5_HW_START_PADDING;
648 rq->mkey_be = c->mkey_be;
649 }
650
651 for (i = 0; i < wq_sz; i++) {
652 struct mlx5e_rx_wqe *wqe = mlx5_wq_ll_get_wqe(&rq->wq, i);
653
654 wqe->data.byte_count = cpu_to_be32(byte_count);
655 wqe->data.lkey = rq->mkey_be;
656 }
657
658 INIT_WORK(&rq->am.work, mlx5e_rx_am_work);
659 rq->am.mode = priv->params.rx_cq_period_mode;
660
661 rq->page_cache.head = 0;
662 rq->page_cache.tail = 0;
663
664 return 0;
665
666 err_destroy_umr_mkey:
667 mlx5_core_destroy_mkey(mdev, &rq->umr_mkey);
668
669 err_rq_wq_destroy:
670 if (rq->xdp_prog)
671 bpf_prog_put(rq->xdp_prog);
672 mlx5_wq_destroy(&rq->wq_ctrl);
673
674 return err;
675 }
676
677 static void mlx5e_destroy_rq(struct mlx5e_rq *rq)
678 {
679 int i;
680
681 if (rq->xdp_prog)
682 bpf_prog_put(rq->xdp_prog);
683
684 switch (rq->wq_type) {
685 case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ:
686 mlx5e_rq_free_mpwqe_info(rq);
687 mlx5_core_destroy_mkey(rq->priv->mdev, &rq->umr_mkey);
688 break;
689 default: /* MLX5_WQ_TYPE_LINKED_LIST */
690 kfree(rq->dma_info);
691 }
692
693 for (i = rq->page_cache.head; i != rq->page_cache.tail;
694 i = (i + 1) & (MLX5E_CACHE_SIZE - 1)) {
695 struct mlx5e_dma_info *dma_info = &rq->page_cache.page_cache[i];
696
697 mlx5e_page_release(rq, dma_info, false);
698 }
699 mlx5_wq_destroy(&rq->wq_ctrl);
700 }
701
702 static int mlx5e_enable_rq(struct mlx5e_rq *rq, struct mlx5e_rq_param *param)
703 {
704 struct mlx5e_priv *priv = rq->priv;
705 struct mlx5_core_dev *mdev = priv->mdev;
706
707 void *in;
708 void *rqc;
709 void *wq;
710 int inlen;
711 int err;
712
713 inlen = MLX5_ST_SZ_BYTES(create_rq_in) +
714 sizeof(u64) * rq->wq_ctrl.buf.npages;
715 in = mlx5_vzalloc(inlen);
716 if (!in)
717 return -ENOMEM;
718
719 rqc = MLX5_ADDR_OF(create_rq_in, in, ctx);
720 wq = MLX5_ADDR_OF(rqc, rqc, wq);
721
722 memcpy(rqc, param->rqc, sizeof(param->rqc));
723
724 MLX5_SET(rqc, rqc, cqn, rq->cq.mcq.cqn);
725 MLX5_SET(rqc, rqc, state, MLX5_RQC_STATE_RST);
726 MLX5_SET(rqc, rqc, vsd, priv->params.vlan_strip_disable);
727 MLX5_SET(wq, wq, log_wq_pg_sz, rq->wq_ctrl.buf.page_shift -
728 MLX5_ADAPTER_PAGE_SHIFT);
729 MLX5_SET64(wq, wq, dbr_addr, rq->wq_ctrl.db.dma);
730
731 mlx5_fill_page_array(&rq->wq_ctrl.buf,
732 (__be64 *)MLX5_ADDR_OF(wq, wq, pas));
733
734 err = mlx5_core_create_rq(mdev, in, inlen, &rq->rqn);
735
736 kvfree(in);
737
738 return err;
739 }
740
741 static int mlx5e_modify_rq_state(struct mlx5e_rq *rq, int curr_state,
742 int next_state)
743 {
744 struct mlx5e_channel *c = rq->channel;
745 struct mlx5e_priv *priv = c->priv;
746 struct mlx5_core_dev *mdev = priv->mdev;
747
748 void *in;
749 void *rqc;
750 int inlen;
751 int err;
752
753 inlen = MLX5_ST_SZ_BYTES(modify_rq_in);
754 in = mlx5_vzalloc(inlen);
755 if (!in)
756 return -ENOMEM;
757
758 rqc = MLX5_ADDR_OF(modify_rq_in, in, ctx);
759
760 MLX5_SET(modify_rq_in, in, rq_state, curr_state);
761 MLX5_SET(rqc, rqc, state, next_state);
762
763 err = mlx5_core_modify_rq(mdev, rq->rqn, in, inlen);
764
765 kvfree(in);
766
767 return err;
768 }
769
770 static int mlx5e_modify_rq_vsd(struct mlx5e_rq *rq, bool vsd)
771 {
772 struct mlx5e_channel *c = rq->channel;
773 struct mlx5e_priv *priv = c->priv;
774 struct mlx5_core_dev *mdev = priv->mdev;
775
776 void *in;
777 void *rqc;
778 int inlen;
779 int err;
780
781 inlen = MLX5_ST_SZ_BYTES(modify_rq_in);
782 in = mlx5_vzalloc(inlen);
783 if (!in)
784 return -ENOMEM;
785
786 rqc = MLX5_ADDR_OF(modify_rq_in, in, ctx);
787
788 MLX5_SET(modify_rq_in, in, rq_state, MLX5_RQC_STATE_RDY);
789 MLX5_SET64(modify_rq_in, in, modify_bitmask,
790 MLX5_MODIFY_RQ_IN_MODIFY_BITMASK_VSD);
791 MLX5_SET(rqc, rqc, vsd, vsd);
792 MLX5_SET(rqc, rqc, state, MLX5_RQC_STATE_RDY);
793
794 err = mlx5_core_modify_rq(mdev, rq->rqn, in, inlen);
795
796 kvfree(in);
797
798 return err;
799 }
800
801 static void mlx5e_disable_rq(struct mlx5e_rq *rq)
802 {
803 mlx5_core_destroy_rq(rq->priv->mdev, rq->rqn);
804 }
805
806 static int mlx5e_wait_for_min_rx_wqes(struct mlx5e_rq *rq)
807 {
808 unsigned long exp_time = jiffies + msecs_to_jiffies(20000);
809 struct mlx5e_channel *c = rq->channel;
810 struct mlx5e_priv *priv = c->priv;
811 struct mlx5_wq_ll *wq = &rq->wq;
812
813 while (time_before(jiffies, exp_time)) {
814 if (wq->cur_sz >= priv->params.min_rx_wqes)
815 return 0;
816
817 msleep(20);
818 }
819
820 return -ETIMEDOUT;
821 }
822
823 static void mlx5e_free_rx_descs(struct mlx5e_rq *rq)
824 {
825 struct mlx5_wq_ll *wq = &rq->wq;
826 struct mlx5e_rx_wqe *wqe;
827 __be16 wqe_ix_be;
828 u16 wqe_ix;
829
830 /* UMR WQE (if in progress) is always at wq->head */
831 if (test_bit(MLX5E_RQ_STATE_UMR_WQE_IN_PROGRESS, &rq->state))
832 mlx5e_free_rx_mpwqe(rq, &rq->mpwqe.info[wq->head]);
833
834 while (!mlx5_wq_ll_is_empty(wq)) {
835 wqe_ix_be = *wq->tail_next;
836 wqe_ix = be16_to_cpu(wqe_ix_be);
837 wqe = mlx5_wq_ll_get_wqe(&rq->wq, wqe_ix);
838 rq->dealloc_wqe(rq, wqe_ix);
839 mlx5_wq_ll_pop(&rq->wq, wqe_ix_be,
840 &wqe->next.next_wqe_index);
841 }
842 }
843
844 static int mlx5e_open_rq(struct mlx5e_channel *c,
845 struct mlx5e_rq_param *param,
846 struct mlx5e_rq *rq)
847 {
848 struct mlx5e_sq *sq = &c->icosq;
849 u16 pi = sq->pc & sq->wq.sz_m1;
850 int err;
851
852 err = mlx5e_create_rq(c, param, rq);
853 if (err)
854 return err;
855
856 err = mlx5e_enable_rq(rq, param);
857 if (err)
858 goto err_destroy_rq;
859
860 set_bit(MLX5E_RQ_STATE_ENABLED, &rq->state);
861 err = mlx5e_modify_rq_state(rq, MLX5_RQC_STATE_RST, MLX5_RQC_STATE_RDY);
862 if (err)
863 goto err_disable_rq;
864
865 if (param->am_enabled)
866 set_bit(MLX5E_RQ_STATE_AM, &c->rq.state);
867
868 sq->db.ico_wqe[pi].opcode = MLX5_OPCODE_NOP;
869 sq->db.ico_wqe[pi].num_wqebbs = 1;
870 mlx5e_send_nop(sq, true); /* trigger mlx5e_post_rx_wqes() */
871
872 return 0;
873
874 err_disable_rq:
875 clear_bit(MLX5E_RQ_STATE_ENABLED, &rq->state);
876 mlx5e_disable_rq(rq);
877 err_destroy_rq:
878 mlx5e_destroy_rq(rq);
879
880 return err;
881 }
882
883 static void mlx5e_close_rq(struct mlx5e_rq *rq)
884 {
885 clear_bit(MLX5E_RQ_STATE_ENABLED, &rq->state);
886 napi_synchronize(&rq->channel->napi); /* prevent mlx5e_post_rx_wqes */
887 cancel_work_sync(&rq->am.work);
888
889 mlx5e_disable_rq(rq);
890 mlx5e_free_rx_descs(rq);
891 mlx5e_destroy_rq(rq);
892 }
893
894 static void mlx5e_free_sq_xdp_db(struct mlx5e_sq *sq)
895 {
896 kfree(sq->db.xdp.di);
897 kfree(sq->db.xdp.wqe_info);
898 }
899
900 static int mlx5e_alloc_sq_xdp_db(struct mlx5e_sq *sq, int numa)
901 {
902 int wq_sz = mlx5_wq_cyc_get_size(&sq->wq);
903
904 sq->db.xdp.di = kzalloc_node(sizeof(*sq->db.xdp.di) * wq_sz,
905 GFP_KERNEL, numa);
906 sq->db.xdp.wqe_info = kzalloc_node(sizeof(*sq->db.xdp.wqe_info) * wq_sz,
907 GFP_KERNEL, numa);
908 if (!sq->db.xdp.di || !sq->db.xdp.wqe_info) {
909 mlx5e_free_sq_xdp_db(sq);
910 return -ENOMEM;
911 }
912
913 return 0;
914 }
915
916 static void mlx5e_free_sq_ico_db(struct mlx5e_sq *sq)
917 {
918 kfree(sq->db.ico_wqe);
919 }
920
921 static int mlx5e_alloc_sq_ico_db(struct mlx5e_sq *sq, int numa)
922 {
923 u8 wq_sz = mlx5_wq_cyc_get_size(&sq->wq);
924
925 sq->db.ico_wqe = kzalloc_node(sizeof(*sq->db.ico_wqe) * wq_sz,
926 GFP_KERNEL, numa);
927 if (!sq->db.ico_wqe)
928 return -ENOMEM;
929
930 return 0;
931 }
932
933 static void mlx5e_free_sq_txq_db(struct mlx5e_sq *sq)
934 {
935 kfree(sq->db.txq.wqe_info);
936 kfree(sq->db.txq.dma_fifo);
937 kfree(sq->db.txq.skb);
938 }
939
940 static int mlx5e_alloc_sq_txq_db(struct mlx5e_sq *sq, int numa)
941 {
942 int wq_sz = mlx5_wq_cyc_get_size(&sq->wq);
943 int df_sz = wq_sz * MLX5_SEND_WQEBB_NUM_DS;
944
945 sq->db.txq.skb = kzalloc_node(wq_sz * sizeof(*sq->db.txq.skb),
946 GFP_KERNEL, numa);
947 sq->db.txq.dma_fifo = kzalloc_node(df_sz * sizeof(*sq->db.txq.dma_fifo),
948 GFP_KERNEL, numa);
949 sq->db.txq.wqe_info = kzalloc_node(wq_sz * sizeof(*sq->db.txq.wqe_info),
950 GFP_KERNEL, numa);
951 if (!sq->db.txq.skb || !sq->db.txq.dma_fifo || !sq->db.txq.wqe_info) {
952 mlx5e_free_sq_txq_db(sq);
953 return -ENOMEM;
954 }
955
956 sq->dma_fifo_mask = df_sz - 1;
957
958 return 0;
959 }
960
961 static void mlx5e_free_sq_db(struct mlx5e_sq *sq)
962 {
963 switch (sq->type) {
964 case MLX5E_SQ_TXQ:
965 mlx5e_free_sq_txq_db(sq);
966 break;
967 case MLX5E_SQ_ICO:
968 mlx5e_free_sq_ico_db(sq);
969 break;
970 case MLX5E_SQ_XDP:
971 mlx5e_free_sq_xdp_db(sq);
972 break;
973 }
974 }
975
976 static int mlx5e_alloc_sq_db(struct mlx5e_sq *sq, int numa)
977 {
978 switch (sq->type) {
979 case MLX5E_SQ_TXQ:
980 return mlx5e_alloc_sq_txq_db(sq, numa);
981 case MLX5E_SQ_ICO:
982 return mlx5e_alloc_sq_ico_db(sq, numa);
983 case MLX5E_SQ_XDP:
984 return mlx5e_alloc_sq_xdp_db(sq, numa);
985 }
986
987 return 0;
988 }
989
990 static int mlx5e_sq_get_max_wqebbs(u8 sq_type)
991 {
992 switch (sq_type) {
993 case MLX5E_SQ_ICO:
994 return MLX5E_ICOSQ_MAX_WQEBBS;
995 case MLX5E_SQ_XDP:
996 return MLX5E_XDP_TX_WQEBBS;
997 }
998 return MLX5_SEND_WQE_MAX_WQEBBS;
999 }
1000
1001 static int mlx5e_create_sq(struct mlx5e_channel *c,
1002 int tc,
1003 struct mlx5e_sq_param *param,
1004 struct mlx5e_sq *sq)
1005 {
1006 struct mlx5e_priv *priv = c->priv;
1007 struct mlx5_core_dev *mdev = priv->mdev;
1008
1009 void *sqc = param->sqc;
1010 void *sqc_wq = MLX5_ADDR_OF(sqc, sqc, wq);
1011 int err;
1012
1013 sq->type = param->type;
1014 sq->pdev = c->pdev;
1015 sq->tstamp = &priv->tstamp;
1016 sq->mkey_be = c->mkey_be;
1017 sq->channel = c;
1018 sq->tc = tc;
1019
1020 err = mlx5_alloc_bfreg(mdev, &sq->bfreg, MLX5_CAP_GEN(mdev, bf), false);
1021 if (err)
1022 return err;
1023
1024 sq->uar_map = sq->bfreg.map;
1025 param->wq.db_numa_node = cpu_to_node(c->cpu);
1026
1027 err = mlx5_wq_cyc_create(mdev, &param->wq, sqc_wq, &sq->wq,
1028 &sq->wq_ctrl);
1029 if (err)
1030 goto err_unmap_free_uar;
1031
1032 sq->wq.db = &sq->wq.db[MLX5_SND_DBR];
1033 if (sq->bfreg.wc)
1034 set_bit(MLX5E_SQ_STATE_BF_ENABLE, &sq->state);
1035
1036 sq->bf_buf_size = (1 << MLX5_CAP_GEN(mdev, log_bf_reg_size)) / 2;
1037 sq->max_inline = param->max_inline;
1038 sq->min_inline_mode = param->min_inline_mode;
1039
1040 err = mlx5e_alloc_sq_db(sq, cpu_to_node(c->cpu));
1041 if (err)
1042 goto err_sq_wq_destroy;
1043
1044 if (sq->type == MLX5E_SQ_TXQ) {
1045 int txq_ix;
1046
1047 txq_ix = c->ix + tc * priv->params.num_channels;
1048 sq->txq = netdev_get_tx_queue(priv->netdev, txq_ix);
1049 priv->txq_to_sq_map[txq_ix] = sq;
1050 }
1051
1052 sq->edge = (sq->wq.sz_m1 + 1) - mlx5e_sq_get_max_wqebbs(sq->type);
1053 sq->bf_budget = MLX5E_SQ_BF_BUDGET;
1054
1055 return 0;
1056
1057 err_sq_wq_destroy:
1058 mlx5_wq_destroy(&sq->wq_ctrl);
1059
1060 err_unmap_free_uar:
1061 mlx5_free_bfreg(mdev, &sq->bfreg);
1062
1063 return err;
1064 }
1065
1066 static void mlx5e_destroy_sq(struct mlx5e_sq *sq)
1067 {
1068 struct mlx5e_channel *c = sq->channel;
1069 struct mlx5e_priv *priv = c->priv;
1070
1071 mlx5e_free_sq_db(sq);
1072 mlx5_wq_destroy(&sq->wq_ctrl);
1073 mlx5_free_bfreg(priv->mdev, &sq->bfreg);
1074 }
1075
1076 static int mlx5e_enable_sq(struct mlx5e_sq *sq, struct mlx5e_sq_param *param)
1077 {
1078 struct mlx5e_channel *c = sq->channel;
1079 struct mlx5e_priv *priv = c->priv;
1080 struct mlx5_core_dev *mdev = priv->mdev;
1081
1082 void *in;
1083 void *sqc;
1084 void *wq;
1085 int inlen;
1086 int err;
1087
1088 inlen = MLX5_ST_SZ_BYTES(create_sq_in) +
1089 sizeof(u64) * sq->wq_ctrl.buf.npages;
1090 in = mlx5_vzalloc(inlen);
1091 if (!in)
1092 return -ENOMEM;
1093
1094 sqc = MLX5_ADDR_OF(create_sq_in, in, ctx);
1095 wq = MLX5_ADDR_OF(sqc, sqc, wq);
1096
1097 memcpy(sqc, param->sqc, sizeof(param->sqc));
1098
1099 MLX5_SET(sqc, sqc, tis_num_0, param->type == MLX5E_SQ_ICO ?
1100 0 : priv->tisn[sq->tc]);
1101 MLX5_SET(sqc, sqc, cqn, sq->cq.mcq.cqn);
1102
1103 if (MLX5_CAP_ETH(mdev, wqe_inline_mode) == MLX5_CAP_INLINE_MODE_VPORT_CONTEXT)
1104 MLX5_SET(sqc, sqc, min_wqe_inline_mode, sq->min_inline_mode);
1105
1106 MLX5_SET(sqc, sqc, state, MLX5_SQC_STATE_RST);
1107 MLX5_SET(sqc, sqc, tis_lst_sz, param->type == MLX5E_SQ_ICO ? 0 : 1);
1108
1109 MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_CYCLIC);
1110 MLX5_SET(wq, wq, uar_page, sq->bfreg.index);
1111 MLX5_SET(wq, wq, log_wq_pg_sz, sq->wq_ctrl.buf.page_shift -
1112 MLX5_ADAPTER_PAGE_SHIFT);
1113 MLX5_SET64(wq, wq, dbr_addr, sq->wq_ctrl.db.dma);
1114
1115 mlx5_fill_page_array(&sq->wq_ctrl.buf,
1116 (__be64 *)MLX5_ADDR_OF(wq, wq, pas));
1117
1118 err = mlx5_core_create_sq(mdev, in, inlen, &sq->sqn);
1119
1120 kvfree(in);
1121
1122 return err;
1123 }
1124
1125 static int mlx5e_modify_sq(struct mlx5e_sq *sq, int curr_state,
1126 int next_state, bool update_rl, int rl_index)
1127 {
1128 struct mlx5e_channel *c = sq->channel;
1129 struct mlx5e_priv *priv = c->priv;
1130 struct mlx5_core_dev *mdev = priv->mdev;
1131
1132 void *in;
1133 void *sqc;
1134 int inlen;
1135 int err;
1136
1137 inlen = MLX5_ST_SZ_BYTES(modify_sq_in);
1138 in = mlx5_vzalloc(inlen);
1139 if (!in)
1140 return -ENOMEM;
1141
1142 sqc = MLX5_ADDR_OF(modify_sq_in, in, ctx);
1143
1144 MLX5_SET(modify_sq_in, in, sq_state, curr_state);
1145 MLX5_SET(sqc, sqc, state, next_state);
1146 if (update_rl && next_state == MLX5_SQC_STATE_RDY) {
1147 MLX5_SET64(modify_sq_in, in, modify_bitmask, 1);
1148 MLX5_SET(sqc, sqc, packet_pacing_rate_limit_index, rl_index);
1149 }
1150
1151 err = mlx5_core_modify_sq(mdev, sq->sqn, in, inlen);
1152
1153 kvfree(in);
1154
1155 return err;
1156 }
1157
1158 static void mlx5e_disable_sq(struct mlx5e_sq *sq)
1159 {
1160 struct mlx5e_channel *c = sq->channel;
1161 struct mlx5e_priv *priv = c->priv;
1162 struct mlx5_core_dev *mdev = priv->mdev;
1163
1164 mlx5_core_destroy_sq(mdev, sq->sqn);
1165 if (sq->rate_limit)
1166 mlx5_rl_remove_rate(mdev, sq->rate_limit);
1167 }
1168
1169 static int mlx5e_open_sq(struct mlx5e_channel *c,
1170 int tc,
1171 struct mlx5e_sq_param *param,
1172 struct mlx5e_sq *sq)
1173 {
1174 int err;
1175
1176 err = mlx5e_create_sq(c, tc, param, sq);
1177 if (err)
1178 return err;
1179
1180 err = mlx5e_enable_sq(sq, param);
1181 if (err)
1182 goto err_destroy_sq;
1183
1184 set_bit(MLX5E_SQ_STATE_ENABLED, &sq->state);
1185 err = mlx5e_modify_sq(sq, MLX5_SQC_STATE_RST, MLX5_SQC_STATE_RDY,
1186 false, 0);
1187 if (err)
1188 goto err_disable_sq;
1189
1190 if (sq->txq) {
1191 netdev_tx_reset_queue(sq->txq);
1192 netif_tx_start_queue(sq->txq);
1193 }
1194
1195 return 0;
1196
1197 err_disable_sq:
1198 clear_bit(MLX5E_SQ_STATE_ENABLED, &sq->state);
1199 mlx5e_disable_sq(sq);
1200 err_destroy_sq:
1201 mlx5e_destroy_sq(sq);
1202
1203 return err;
1204 }
1205
1206 static inline void netif_tx_disable_queue(struct netdev_queue *txq)
1207 {
1208 __netif_tx_lock_bh(txq);
1209 netif_tx_stop_queue(txq);
1210 __netif_tx_unlock_bh(txq);
1211 }
1212
1213 static void mlx5e_close_sq(struct mlx5e_sq *sq)
1214 {
1215 clear_bit(MLX5E_SQ_STATE_ENABLED, &sq->state);
1216 /* prevent netif_tx_wake_queue */
1217 napi_synchronize(&sq->channel->napi);
1218
1219 if (sq->txq) {
1220 netif_tx_disable_queue(sq->txq);
1221
1222 /* last doorbell out, godspeed .. */
1223 if (mlx5e_sq_has_room_for(sq, 1)) {
1224 sq->db.txq.skb[(sq->pc & sq->wq.sz_m1)] = NULL;
1225 mlx5e_send_nop(sq, true);
1226 }
1227 }
1228
1229 mlx5e_disable_sq(sq);
1230 mlx5e_free_sq_descs(sq);
1231 mlx5e_destroy_sq(sq);
1232 }
1233
1234 static int mlx5e_create_cq(struct mlx5e_channel *c,
1235 struct mlx5e_cq_param *param,
1236 struct mlx5e_cq *cq)
1237 {
1238 struct mlx5e_priv *priv = c->priv;
1239 struct mlx5_core_dev *mdev = priv->mdev;
1240 struct mlx5_core_cq *mcq = &cq->mcq;
1241 int eqn_not_used;
1242 unsigned int irqn;
1243 int err;
1244 u32 i;
1245
1246 param->wq.buf_numa_node = cpu_to_node(c->cpu);
1247 param->wq.db_numa_node = cpu_to_node(c->cpu);
1248 param->eq_ix = c->ix;
1249
1250 err = mlx5_cqwq_create(mdev, &param->wq, param->cqc, &cq->wq,
1251 &cq->wq_ctrl);
1252 if (err)
1253 return err;
1254
1255 mlx5_vector2eqn(mdev, param->eq_ix, &eqn_not_used, &irqn);
1256
1257 cq->napi = &c->napi;
1258
1259 mcq->cqe_sz = 64;
1260 mcq->set_ci_db = cq->wq_ctrl.db.db;
1261 mcq->arm_db = cq->wq_ctrl.db.db + 1;
1262 *mcq->set_ci_db = 0;
1263 *mcq->arm_db = 0;
1264 mcq->vector = param->eq_ix;
1265 mcq->comp = mlx5e_completion_event;
1266 mcq->event = mlx5e_cq_error_event;
1267 mcq->irqn = irqn;
1268
1269 for (i = 0; i < mlx5_cqwq_get_size(&cq->wq); i++) {
1270 struct mlx5_cqe64 *cqe = mlx5_cqwq_get_wqe(&cq->wq, i);
1271
1272 cqe->op_own = 0xf1;
1273 }
1274
1275 cq->channel = c;
1276 cq->priv = priv;
1277
1278 return 0;
1279 }
1280
1281 static void mlx5e_destroy_cq(struct mlx5e_cq *cq)
1282 {
1283 mlx5_cqwq_destroy(&cq->wq_ctrl);
1284 }
1285
1286 static int mlx5e_enable_cq(struct mlx5e_cq *cq, struct mlx5e_cq_param *param)
1287 {
1288 struct mlx5e_priv *priv = cq->priv;
1289 struct mlx5_core_dev *mdev = priv->mdev;
1290 struct mlx5_core_cq *mcq = &cq->mcq;
1291
1292 void *in;
1293 void *cqc;
1294 int inlen;
1295 unsigned int irqn_not_used;
1296 int eqn;
1297 int err;
1298
1299 inlen = MLX5_ST_SZ_BYTES(create_cq_in) +
1300 sizeof(u64) * cq->wq_ctrl.frag_buf.npages;
1301 in = mlx5_vzalloc(inlen);
1302 if (!in)
1303 return -ENOMEM;
1304
1305 cqc = MLX5_ADDR_OF(create_cq_in, in, cq_context);
1306
1307 memcpy(cqc, param->cqc, sizeof(param->cqc));
1308
1309 mlx5_fill_page_frag_array(&cq->wq_ctrl.frag_buf,
1310 (__be64 *)MLX5_ADDR_OF(create_cq_in, in, pas));
1311
1312 mlx5_vector2eqn(mdev, param->eq_ix, &eqn, &irqn_not_used);
1313
1314 MLX5_SET(cqc, cqc, cq_period_mode, param->cq_period_mode);
1315 MLX5_SET(cqc, cqc, c_eqn, eqn);
1316 MLX5_SET(cqc, cqc, uar_page, mdev->priv.uar->index);
1317 MLX5_SET(cqc, cqc, log_page_size, cq->wq_ctrl.frag_buf.page_shift -
1318 MLX5_ADAPTER_PAGE_SHIFT);
1319 MLX5_SET64(cqc, cqc, dbr_addr, cq->wq_ctrl.db.dma);
1320
1321 err = mlx5_core_create_cq(mdev, mcq, in, inlen);
1322
1323 kvfree(in);
1324
1325 if (err)
1326 return err;
1327
1328 mlx5e_cq_arm(cq);
1329
1330 return 0;
1331 }
1332
1333 static void mlx5e_disable_cq(struct mlx5e_cq *cq)
1334 {
1335 struct mlx5e_priv *priv = cq->priv;
1336 struct mlx5_core_dev *mdev = priv->mdev;
1337
1338 mlx5_core_destroy_cq(mdev, &cq->mcq);
1339 }
1340
1341 static int mlx5e_open_cq(struct mlx5e_channel *c,
1342 struct mlx5e_cq_param *param,
1343 struct mlx5e_cq *cq,
1344 struct mlx5e_cq_moder moderation)
1345 {
1346 int err;
1347 struct mlx5e_priv *priv = c->priv;
1348 struct mlx5_core_dev *mdev = priv->mdev;
1349
1350 err = mlx5e_create_cq(c, param, cq);
1351 if (err)
1352 return err;
1353
1354 err = mlx5e_enable_cq(cq, param);
1355 if (err)
1356 goto err_destroy_cq;
1357
1358 if (MLX5_CAP_GEN(mdev, cq_moderation))
1359 mlx5_core_modify_cq_moderation(mdev, &cq->mcq,
1360 moderation.usec,
1361 moderation.pkts);
1362 return 0;
1363
1364 err_destroy_cq:
1365 mlx5e_destroy_cq(cq);
1366
1367 return err;
1368 }
1369
1370 static void mlx5e_close_cq(struct mlx5e_cq *cq)
1371 {
1372 mlx5e_disable_cq(cq);
1373 mlx5e_destroy_cq(cq);
1374 }
1375
1376 static int mlx5e_get_cpu(struct mlx5e_priv *priv, int ix)
1377 {
1378 return cpumask_first(priv->mdev->priv.irq_info[ix].mask);
1379 }
1380
1381 static int mlx5e_open_tx_cqs(struct mlx5e_channel *c,
1382 struct mlx5e_channel_param *cparam)
1383 {
1384 struct mlx5e_priv *priv = c->priv;
1385 int err;
1386 int tc;
1387
1388 for (tc = 0; tc < c->num_tc; tc++) {
1389 err = mlx5e_open_cq(c, &cparam->tx_cq, &c->sq[tc].cq,
1390 priv->params.tx_cq_moderation);
1391 if (err)
1392 goto err_close_tx_cqs;
1393 }
1394
1395 return 0;
1396
1397 err_close_tx_cqs:
1398 for (tc--; tc >= 0; tc--)
1399 mlx5e_close_cq(&c->sq[tc].cq);
1400
1401 return err;
1402 }
1403
1404 static void mlx5e_close_tx_cqs(struct mlx5e_channel *c)
1405 {
1406 int tc;
1407
1408 for (tc = 0; tc < c->num_tc; tc++)
1409 mlx5e_close_cq(&c->sq[tc].cq);
1410 }
1411
1412 static int mlx5e_open_sqs(struct mlx5e_channel *c,
1413 struct mlx5e_channel_param *cparam)
1414 {
1415 int err;
1416 int tc;
1417
1418 for (tc = 0; tc < c->num_tc; tc++) {
1419 err = mlx5e_open_sq(c, tc, &cparam->sq, &c->sq[tc]);
1420 if (err)
1421 goto err_close_sqs;
1422 }
1423
1424 return 0;
1425
1426 err_close_sqs:
1427 for (tc--; tc >= 0; tc--)
1428 mlx5e_close_sq(&c->sq[tc]);
1429
1430 return err;
1431 }
1432
1433 static void mlx5e_close_sqs(struct mlx5e_channel *c)
1434 {
1435 int tc;
1436
1437 for (tc = 0; tc < c->num_tc; tc++)
1438 mlx5e_close_sq(&c->sq[tc]);
1439 }
1440
1441 static void mlx5e_build_channeltc_to_txq_map(struct mlx5e_priv *priv, int ix)
1442 {
1443 int i;
1444
1445 for (i = 0; i < priv->profile->max_tc; i++)
1446 priv->channeltc_to_txq_map[ix][i] =
1447 ix + i * priv->params.num_channels;
1448 }
1449
1450 static int mlx5e_set_sq_maxrate(struct net_device *dev,
1451 struct mlx5e_sq *sq, u32 rate)
1452 {
1453 struct mlx5e_priv *priv = netdev_priv(dev);
1454 struct mlx5_core_dev *mdev = priv->mdev;
1455 u16 rl_index = 0;
1456 int err;
1457
1458 if (rate == sq->rate_limit)
1459 /* nothing to do */
1460 return 0;
1461
1462 if (sq->rate_limit)
1463 /* remove current rl index to free space to next ones */
1464 mlx5_rl_remove_rate(mdev, sq->rate_limit);
1465
1466 sq->rate_limit = 0;
1467
1468 if (rate) {
1469 err = mlx5_rl_add_rate(mdev, rate, &rl_index);
1470 if (err) {
1471 netdev_err(dev, "Failed configuring rate %u: %d\n",
1472 rate, err);
1473 return err;
1474 }
1475 }
1476
1477 err = mlx5e_modify_sq(sq, MLX5_SQC_STATE_RDY,
1478 MLX5_SQC_STATE_RDY, true, rl_index);
1479 if (err) {
1480 netdev_err(dev, "Failed configuring rate %u: %d\n",
1481 rate, err);
1482 /* remove the rate from the table */
1483 if (rate)
1484 mlx5_rl_remove_rate(mdev, rate);
1485 return err;
1486 }
1487
1488 sq->rate_limit = rate;
1489 return 0;
1490 }
1491
1492 static int mlx5e_set_tx_maxrate(struct net_device *dev, int index, u32 rate)
1493 {
1494 struct mlx5e_priv *priv = netdev_priv(dev);
1495 struct mlx5_core_dev *mdev = priv->mdev;
1496 struct mlx5e_sq *sq = priv->txq_to_sq_map[index];
1497 int err = 0;
1498
1499 if (!mlx5_rl_is_supported(mdev)) {
1500 netdev_err(dev, "Rate limiting is not supported on this device\n");
1501 return -EINVAL;
1502 }
1503
1504 /* rate is given in Mb/sec, HW config is in Kb/sec */
1505 rate = rate << 10;
1506
1507 /* Check whether rate in valid range, 0 is always valid */
1508 if (rate && !mlx5_rl_is_in_range(mdev, rate)) {
1509 netdev_err(dev, "TX rate %u, is not in range\n", rate);
1510 return -ERANGE;
1511 }
1512
1513 mutex_lock(&priv->state_lock);
1514 if (test_bit(MLX5E_STATE_OPENED, &priv->state))
1515 err = mlx5e_set_sq_maxrate(dev, sq, rate);
1516 if (!err)
1517 priv->tx_rates[index] = rate;
1518 mutex_unlock(&priv->state_lock);
1519
1520 return err;
1521 }
1522
1523 static inline int mlx5e_get_max_num_channels(struct mlx5_core_dev *mdev)
1524 {
1525 return is_kdump_kernel() ?
1526 MLX5E_MIN_NUM_CHANNELS :
1527 min_t(int, mdev->priv.eq_table.num_comp_vectors,
1528 MLX5E_MAX_NUM_CHANNELS);
1529 }
1530
1531 static int mlx5e_open_channel(struct mlx5e_priv *priv, int ix,
1532 struct mlx5e_channel_param *cparam,
1533 struct mlx5e_channel **cp)
1534 {
1535 struct mlx5e_cq_moder icosq_cq_moder = {0, 0};
1536 struct net_device *netdev = priv->netdev;
1537 struct mlx5e_cq_moder rx_cq_profile;
1538 int cpu = mlx5e_get_cpu(priv, ix);
1539 struct mlx5e_channel *c;
1540 struct mlx5e_sq *sq;
1541 int err;
1542 int i;
1543
1544 c = kzalloc_node(sizeof(*c), GFP_KERNEL, cpu_to_node(cpu));
1545 if (!c)
1546 return -ENOMEM;
1547
1548 c->priv = priv;
1549 c->ix = ix;
1550 c->cpu = cpu;
1551 c->pdev = &priv->mdev->pdev->dev;
1552 c->netdev = priv->netdev;
1553 c->mkey_be = cpu_to_be32(priv->mdev->mlx5e_res.mkey.key);
1554 c->num_tc = priv->params.num_tc;
1555 c->xdp = !!priv->xdp_prog;
1556
1557 if (priv->params.rx_am_enabled)
1558 rx_cq_profile = mlx5e_am_get_def_profile(priv->params.rx_cq_period_mode);
1559 else
1560 rx_cq_profile = priv->params.rx_cq_moderation;
1561
1562 mlx5e_build_channeltc_to_txq_map(priv, ix);
1563
1564 netif_napi_add(netdev, &c->napi, mlx5e_napi_poll, 64);
1565
1566 err = mlx5e_open_cq(c, &cparam->icosq_cq, &c->icosq.cq, icosq_cq_moder);
1567 if (err)
1568 goto err_napi_del;
1569
1570 err = mlx5e_open_tx_cqs(c, cparam);
1571 if (err)
1572 goto err_close_icosq_cq;
1573
1574 err = mlx5e_open_cq(c, &cparam->rx_cq, &c->rq.cq,
1575 rx_cq_profile);
1576 if (err)
1577 goto err_close_tx_cqs;
1578
1579 /* XDP SQ CQ params are same as normal TXQ sq CQ params */
1580 err = c->xdp ? mlx5e_open_cq(c, &cparam->tx_cq, &c->xdp_sq.cq,
1581 priv->params.tx_cq_moderation) : 0;
1582 if (err)
1583 goto err_close_rx_cq;
1584
1585 napi_enable(&c->napi);
1586
1587 err = mlx5e_open_sq(c, 0, &cparam->icosq, &c->icosq);
1588 if (err)
1589 goto err_disable_napi;
1590
1591 err = mlx5e_open_sqs(c, cparam);
1592 if (err)
1593 goto err_close_icosq;
1594
1595 for (i = 0; i < priv->params.num_tc; i++) {
1596 u32 txq_ix = priv->channeltc_to_txq_map[ix][i];
1597
1598 if (priv->tx_rates[txq_ix]) {
1599 sq = priv->txq_to_sq_map[txq_ix];
1600 mlx5e_set_sq_maxrate(priv->netdev, sq,
1601 priv->tx_rates[txq_ix]);
1602 }
1603 }
1604
1605 err = c->xdp ? mlx5e_open_sq(c, 0, &cparam->xdp_sq, &c->xdp_sq) : 0;
1606 if (err)
1607 goto err_close_sqs;
1608
1609 err = mlx5e_open_rq(c, &cparam->rq, &c->rq);
1610 if (err)
1611 goto err_close_xdp_sq;
1612
1613 netif_set_xps_queue(netdev, get_cpu_mask(c->cpu), ix);
1614 *cp = c;
1615
1616 return 0;
1617 err_close_xdp_sq:
1618 if (c->xdp)
1619 mlx5e_close_sq(&c->xdp_sq);
1620
1621 err_close_sqs:
1622 mlx5e_close_sqs(c);
1623
1624 err_close_icosq:
1625 mlx5e_close_sq(&c->icosq);
1626
1627 err_disable_napi:
1628 napi_disable(&c->napi);
1629 if (c->xdp)
1630 mlx5e_close_cq(&c->xdp_sq.cq);
1631
1632 err_close_rx_cq:
1633 mlx5e_close_cq(&c->rq.cq);
1634
1635 err_close_tx_cqs:
1636 mlx5e_close_tx_cqs(c);
1637
1638 err_close_icosq_cq:
1639 mlx5e_close_cq(&c->icosq.cq);
1640
1641 err_napi_del:
1642 netif_napi_del(&c->napi);
1643 kfree(c);
1644
1645 return err;
1646 }
1647
1648 static void mlx5e_close_channel(struct mlx5e_channel *c)
1649 {
1650 mlx5e_close_rq(&c->rq);
1651 if (c->xdp)
1652 mlx5e_close_sq(&c->xdp_sq);
1653 mlx5e_close_sqs(c);
1654 mlx5e_close_sq(&c->icosq);
1655 napi_disable(&c->napi);
1656 if (c->xdp)
1657 mlx5e_close_cq(&c->xdp_sq.cq);
1658 mlx5e_close_cq(&c->rq.cq);
1659 mlx5e_close_tx_cqs(c);
1660 mlx5e_close_cq(&c->icosq.cq);
1661 netif_napi_del(&c->napi);
1662
1663 kfree(c);
1664 }
1665
1666 static void mlx5e_build_rq_param(struct mlx5e_priv *priv,
1667 struct mlx5e_rq_param *param)
1668 {
1669 void *rqc = param->rqc;
1670 void *wq = MLX5_ADDR_OF(rqc, rqc, wq);
1671
1672 switch (priv->params.rq_wq_type) {
1673 case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ:
1674 MLX5_SET(wq, wq, log_wqe_num_of_strides,
1675 priv->params.mpwqe_log_num_strides - 9);
1676 MLX5_SET(wq, wq, log_wqe_stride_size,
1677 priv->params.mpwqe_log_stride_sz - 6);
1678 MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ);
1679 break;
1680 default: /* MLX5_WQ_TYPE_LINKED_LIST */
1681 MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_LINKED_LIST);
1682 }
1683
1684 MLX5_SET(wq, wq, end_padding_mode, MLX5_WQ_END_PAD_MODE_ALIGN);
1685 MLX5_SET(wq, wq, log_wq_stride, ilog2(sizeof(struct mlx5e_rx_wqe)));
1686 MLX5_SET(wq, wq, log_wq_sz, priv->params.log_rq_size);
1687 MLX5_SET(wq, wq, pd, priv->mdev->mlx5e_res.pdn);
1688 MLX5_SET(rqc, rqc, counter_set_id, priv->q_counter);
1689
1690 param->wq.buf_numa_node = dev_to_node(&priv->mdev->pdev->dev);
1691 param->wq.linear = 1;
1692
1693 param->am_enabled = priv->params.rx_am_enabled;
1694 }
1695
1696 static void mlx5e_build_drop_rq_param(struct mlx5e_rq_param *param)
1697 {
1698 void *rqc = param->rqc;
1699 void *wq = MLX5_ADDR_OF(rqc, rqc, wq);
1700
1701 MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_LINKED_LIST);
1702 MLX5_SET(wq, wq, log_wq_stride, ilog2(sizeof(struct mlx5e_rx_wqe)));
1703 }
1704
1705 static void mlx5e_build_sq_param_common(struct mlx5e_priv *priv,
1706 struct mlx5e_sq_param *param)
1707 {
1708 void *sqc = param->sqc;
1709 void *wq = MLX5_ADDR_OF(sqc, sqc, wq);
1710
1711 MLX5_SET(wq, wq, log_wq_stride, ilog2(MLX5_SEND_WQE_BB));
1712 MLX5_SET(wq, wq, pd, priv->mdev->mlx5e_res.pdn);
1713
1714 param->wq.buf_numa_node = dev_to_node(&priv->mdev->pdev->dev);
1715 }
1716
1717 static void mlx5e_build_sq_param(struct mlx5e_priv *priv,
1718 struct mlx5e_sq_param *param)
1719 {
1720 void *sqc = param->sqc;
1721 void *wq = MLX5_ADDR_OF(sqc, sqc, wq);
1722
1723 mlx5e_build_sq_param_common(priv, param);
1724 MLX5_SET(wq, wq, log_wq_sz, priv->params.log_sq_size);
1725
1726 param->max_inline = priv->params.tx_max_inline;
1727 param->min_inline_mode = priv->params.tx_min_inline_mode;
1728 param->type = MLX5E_SQ_TXQ;
1729 }
1730
1731 static void mlx5e_build_common_cq_param(struct mlx5e_priv *priv,
1732 struct mlx5e_cq_param *param)
1733 {
1734 void *cqc = param->cqc;
1735
1736 MLX5_SET(cqc, cqc, uar_page, priv->mdev->priv.uar->index);
1737 }
1738
1739 static void mlx5e_build_rx_cq_param(struct mlx5e_priv *priv,
1740 struct mlx5e_cq_param *param)
1741 {
1742 void *cqc = param->cqc;
1743 u8 log_cq_size;
1744
1745 switch (priv->params.rq_wq_type) {
1746 case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ:
1747 log_cq_size = priv->params.log_rq_size +
1748 priv->params.mpwqe_log_num_strides;
1749 break;
1750 default: /* MLX5_WQ_TYPE_LINKED_LIST */
1751 log_cq_size = priv->params.log_rq_size;
1752 }
1753
1754 MLX5_SET(cqc, cqc, log_cq_size, log_cq_size);
1755 if (MLX5E_GET_PFLAG(priv, MLX5E_PFLAG_RX_CQE_COMPRESS)) {
1756 MLX5_SET(cqc, cqc, mini_cqe_res_format, MLX5_CQE_FORMAT_CSUM);
1757 MLX5_SET(cqc, cqc, cqe_comp_en, 1);
1758 }
1759
1760 mlx5e_build_common_cq_param(priv, param);
1761
1762 param->cq_period_mode = priv->params.rx_cq_period_mode;
1763 }
1764
1765 static void mlx5e_build_tx_cq_param(struct mlx5e_priv *priv,
1766 struct mlx5e_cq_param *param)
1767 {
1768 void *cqc = param->cqc;
1769
1770 MLX5_SET(cqc, cqc, log_cq_size, priv->params.log_sq_size);
1771
1772 mlx5e_build_common_cq_param(priv, param);
1773
1774 param->cq_period_mode = MLX5_CQ_PERIOD_MODE_START_FROM_EQE;
1775 }
1776
1777 static void mlx5e_build_ico_cq_param(struct mlx5e_priv *priv,
1778 struct mlx5e_cq_param *param,
1779 u8 log_wq_size)
1780 {
1781 void *cqc = param->cqc;
1782
1783 MLX5_SET(cqc, cqc, log_cq_size, log_wq_size);
1784
1785 mlx5e_build_common_cq_param(priv, param);
1786
1787 param->cq_period_mode = MLX5_CQ_PERIOD_MODE_START_FROM_EQE;
1788 }
1789
1790 static void mlx5e_build_icosq_param(struct mlx5e_priv *priv,
1791 struct mlx5e_sq_param *param,
1792 u8 log_wq_size)
1793 {
1794 void *sqc = param->sqc;
1795 void *wq = MLX5_ADDR_OF(sqc, sqc, wq);
1796
1797 mlx5e_build_sq_param_common(priv, param);
1798
1799 MLX5_SET(wq, wq, log_wq_sz, log_wq_size);
1800 MLX5_SET(sqc, sqc, reg_umr, MLX5_CAP_ETH(priv->mdev, reg_umr_sq));
1801
1802 param->type = MLX5E_SQ_ICO;
1803 }
1804
1805 static void mlx5e_build_xdpsq_param(struct mlx5e_priv *priv,
1806 struct mlx5e_sq_param *param)
1807 {
1808 void *sqc = param->sqc;
1809 void *wq = MLX5_ADDR_OF(sqc, sqc, wq);
1810
1811 mlx5e_build_sq_param_common(priv, param);
1812 MLX5_SET(wq, wq, log_wq_sz, priv->params.log_sq_size);
1813
1814 param->max_inline = priv->params.tx_max_inline;
1815 param->min_inline_mode = priv->params.tx_min_inline_mode;
1816 param->type = MLX5E_SQ_XDP;
1817 }
1818
1819 static void mlx5e_build_channel_param(struct mlx5e_priv *priv, struct mlx5e_channel_param *cparam)
1820 {
1821 u8 icosq_log_wq_sz = MLX5E_PARAMS_MINIMUM_LOG_SQ_SIZE;
1822
1823 mlx5e_build_rq_param(priv, &cparam->rq);
1824 mlx5e_build_sq_param(priv, &cparam->sq);
1825 mlx5e_build_xdpsq_param(priv, &cparam->xdp_sq);
1826 mlx5e_build_icosq_param(priv, &cparam->icosq, icosq_log_wq_sz);
1827 mlx5e_build_rx_cq_param(priv, &cparam->rx_cq);
1828 mlx5e_build_tx_cq_param(priv, &cparam->tx_cq);
1829 mlx5e_build_ico_cq_param(priv, &cparam->icosq_cq, icosq_log_wq_sz);
1830 }
1831
1832 static int mlx5e_open_channels(struct mlx5e_priv *priv)
1833 {
1834 struct mlx5e_channel_param *cparam;
1835 int nch = priv->params.num_channels;
1836 int err = -ENOMEM;
1837 int i;
1838 int j;
1839
1840 priv->channel = kcalloc(nch, sizeof(struct mlx5e_channel *),
1841 GFP_KERNEL);
1842
1843 priv->txq_to_sq_map = kcalloc(nch * priv->params.num_tc,
1844 sizeof(struct mlx5e_sq *), GFP_KERNEL);
1845
1846 cparam = kzalloc(sizeof(struct mlx5e_channel_param), GFP_KERNEL);
1847
1848 if (!priv->channel || !priv->txq_to_sq_map || !cparam)
1849 goto err_free_txq_to_sq_map;
1850
1851 mlx5e_build_channel_param(priv, cparam);
1852
1853 for (i = 0; i < nch; i++) {
1854 err = mlx5e_open_channel(priv, i, cparam, &priv->channel[i]);
1855 if (err)
1856 goto err_close_channels;
1857 }
1858
1859 for (j = 0; j < nch; j++) {
1860 err = mlx5e_wait_for_min_rx_wqes(&priv->channel[j]->rq);
1861 if (err)
1862 goto err_close_channels;
1863 }
1864
1865 /* FIXME: This is a W/A for tx timeout watch dog false alarm when
1866 * polling for inactive tx queues.
1867 */
1868 netif_tx_start_all_queues(priv->netdev);
1869
1870 kfree(cparam);
1871 return 0;
1872
1873 err_close_channels:
1874 for (i--; i >= 0; i--)
1875 mlx5e_close_channel(priv->channel[i]);
1876
1877 err_free_txq_to_sq_map:
1878 kfree(priv->txq_to_sq_map);
1879 kfree(priv->channel);
1880 kfree(cparam);
1881
1882 return err;
1883 }
1884
1885 static void mlx5e_close_channels(struct mlx5e_priv *priv)
1886 {
1887 int i;
1888
1889 /* FIXME: This is a W/A only for tx timeout watch dog false alarm when
1890 * polling for inactive tx queues.
1891 */
1892 netif_tx_stop_all_queues(priv->netdev);
1893 netif_tx_disable(priv->netdev);
1894
1895 for (i = 0; i < priv->params.num_channels; i++)
1896 mlx5e_close_channel(priv->channel[i]);
1897
1898 kfree(priv->txq_to_sq_map);
1899 kfree(priv->channel);
1900 }
1901
1902 static int mlx5e_rx_hash_fn(int hfunc)
1903 {
1904 return (hfunc == ETH_RSS_HASH_TOP) ?
1905 MLX5_RX_HASH_FN_TOEPLITZ :
1906 MLX5_RX_HASH_FN_INVERTED_XOR8;
1907 }
1908
1909 static int mlx5e_bits_invert(unsigned long a, int size)
1910 {
1911 int inv = 0;
1912 int i;
1913
1914 for (i = 0; i < size; i++)
1915 inv |= (test_bit(size - i - 1, &a) ? 1 : 0) << i;
1916
1917 return inv;
1918 }
1919
1920 static void mlx5e_fill_indir_rqt_rqns(struct mlx5e_priv *priv, void *rqtc)
1921 {
1922 int i;
1923
1924 for (i = 0; i < MLX5E_INDIR_RQT_SIZE; i++) {
1925 int ix = i;
1926 u32 rqn;
1927
1928 if (priv->params.rss_hfunc == ETH_RSS_HASH_XOR)
1929 ix = mlx5e_bits_invert(i, MLX5E_LOG_INDIR_RQT_SIZE);
1930
1931 ix = priv->params.indirection_rqt[ix];
1932 rqn = test_bit(MLX5E_STATE_OPENED, &priv->state) ?
1933 priv->channel[ix]->rq.rqn :
1934 priv->drop_rq.rqn;
1935 MLX5_SET(rqtc, rqtc, rq_num[i], rqn);
1936 }
1937 }
1938
1939 static void mlx5e_fill_direct_rqt_rqn(struct mlx5e_priv *priv, void *rqtc,
1940 int ix)
1941 {
1942 u32 rqn = test_bit(MLX5E_STATE_OPENED, &priv->state) ?
1943 priv->channel[ix]->rq.rqn :
1944 priv->drop_rq.rqn;
1945
1946 MLX5_SET(rqtc, rqtc, rq_num[0], rqn);
1947 }
1948
1949 static int mlx5e_create_rqt(struct mlx5e_priv *priv, int sz,
1950 int ix, struct mlx5e_rqt *rqt)
1951 {
1952 struct mlx5_core_dev *mdev = priv->mdev;
1953 void *rqtc;
1954 int inlen;
1955 int err;
1956 u32 *in;
1957
1958 inlen = MLX5_ST_SZ_BYTES(create_rqt_in) + sizeof(u32) * sz;
1959 in = mlx5_vzalloc(inlen);
1960 if (!in)
1961 return -ENOMEM;
1962
1963 rqtc = MLX5_ADDR_OF(create_rqt_in, in, rqt_context);
1964
1965 MLX5_SET(rqtc, rqtc, rqt_actual_size, sz);
1966 MLX5_SET(rqtc, rqtc, rqt_max_size, sz);
1967
1968 if (sz > 1) /* RSS */
1969 mlx5e_fill_indir_rqt_rqns(priv, rqtc);
1970 else
1971 mlx5e_fill_direct_rqt_rqn(priv, rqtc, ix);
1972
1973 err = mlx5_core_create_rqt(mdev, in, inlen, &rqt->rqtn);
1974 if (!err)
1975 rqt->enabled = true;
1976
1977 kvfree(in);
1978 return err;
1979 }
1980
1981 void mlx5e_destroy_rqt(struct mlx5e_priv *priv, struct mlx5e_rqt *rqt)
1982 {
1983 rqt->enabled = false;
1984 mlx5_core_destroy_rqt(priv->mdev, rqt->rqtn);
1985 }
1986
1987 static int mlx5e_create_indirect_rqts(struct mlx5e_priv *priv)
1988 {
1989 struct mlx5e_rqt *rqt = &priv->indir_rqt;
1990
1991 return mlx5e_create_rqt(priv, MLX5E_INDIR_RQT_SIZE, 0, rqt);
1992 }
1993
1994 int mlx5e_create_direct_rqts(struct mlx5e_priv *priv)
1995 {
1996 struct mlx5e_rqt *rqt;
1997 int err;
1998 int ix;
1999
2000 for (ix = 0; ix < priv->profile->max_nch(priv->mdev); ix++) {
2001 rqt = &priv->direct_tir[ix].rqt;
2002 err = mlx5e_create_rqt(priv, 1 /*size */, ix, rqt);
2003 if (err)
2004 goto err_destroy_rqts;
2005 }
2006
2007 return 0;
2008
2009 err_destroy_rqts:
2010 for (ix--; ix >= 0; ix--)
2011 mlx5e_destroy_rqt(priv, &priv->direct_tir[ix].rqt);
2012
2013 return err;
2014 }
2015
2016 int mlx5e_redirect_rqt(struct mlx5e_priv *priv, u32 rqtn, int sz, int ix)
2017 {
2018 struct mlx5_core_dev *mdev = priv->mdev;
2019 void *rqtc;
2020 int inlen;
2021 u32 *in;
2022 int err;
2023
2024 inlen = MLX5_ST_SZ_BYTES(modify_rqt_in) + sizeof(u32) * sz;
2025 in = mlx5_vzalloc(inlen);
2026 if (!in)
2027 return -ENOMEM;
2028
2029 rqtc = MLX5_ADDR_OF(modify_rqt_in, in, ctx);
2030
2031 MLX5_SET(rqtc, rqtc, rqt_actual_size, sz);
2032 if (sz > 1) /* RSS */
2033 mlx5e_fill_indir_rqt_rqns(priv, rqtc);
2034 else
2035 mlx5e_fill_direct_rqt_rqn(priv, rqtc, ix);
2036
2037 MLX5_SET(modify_rqt_in, in, bitmask.rqn_list, 1);
2038
2039 err = mlx5_core_modify_rqt(mdev, rqtn, in, inlen);
2040
2041 kvfree(in);
2042
2043 return err;
2044 }
2045
2046 static void mlx5e_redirect_rqts(struct mlx5e_priv *priv)
2047 {
2048 u32 rqtn;
2049 int ix;
2050
2051 if (priv->indir_rqt.enabled) {
2052 rqtn = priv->indir_rqt.rqtn;
2053 mlx5e_redirect_rqt(priv, rqtn, MLX5E_INDIR_RQT_SIZE, 0);
2054 }
2055
2056 for (ix = 0; ix < priv->params.num_channels; ix++) {
2057 if (!priv->direct_tir[ix].rqt.enabled)
2058 continue;
2059 rqtn = priv->direct_tir[ix].rqt.rqtn;
2060 mlx5e_redirect_rqt(priv, rqtn, 1, ix);
2061 }
2062 }
2063
2064 static void mlx5e_build_tir_ctx_lro(void *tirc, struct mlx5e_priv *priv)
2065 {
2066 if (!priv->params.lro_en)
2067 return;
2068
2069 #define ROUGH_MAX_L2_L3_HDR_SZ 256
2070
2071 MLX5_SET(tirc, tirc, lro_enable_mask,
2072 MLX5_TIRC_LRO_ENABLE_MASK_IPV4_LRO |
2073 MLX5_TIRC_LRO_ENABLE_MASK_IPV6_LRO);
2074 MLX5_SET(tirc, tirc, lro_max_ip_payload_size,
2075 (priv->params.lro_wqe_sz -
2076 ROUGH_MAX_L2_L3_HDR_SZ) >> 8);
2077 MLX5_SET(tirc, tirc, lro_timeout_period_usecs, priv->params.lro_timeout);
2078 }
2079
2080 void mlx5e_build_indir_tir_ctx_hash(struct mlx5e_priv *priv, void *tirc,
2081 enum mlx5e_traffic_types tt)
2082 {
2083 void *hfso = MLX5_ADDR_OF(tirc, tirc, rx_hash_field_selector_outer);
2084
2085 #define MLX5_HASH_IP (MLX5_HASH_FIELD_SEL_SRC_IP |\
2086 MLX5_HASH_FIELD_SEL_DST_IP)
2087
2088 #define MLX5_HASH_IP_L4PORTS (MLX5_HASH_FIELD_SEL_SRC_IP |\
2089 MLX5_HASH_FIELD_SEL_DST_IP |\
2090 MLX5_HASH_FIELD_SEL_L4_SPORT |\
2091 MLX5_HASH_FIELD_SEL_L4_DPORT)
2092
2093 #define MLX5_HASH_IP_IPSEC_SPI (MLX5_HASH_FIELD_SEL_SRC_IP |\
2094 MLX5_HASH_FIELD_SEL_DST_IP |\
2095 MLX5_HASH_FIELD_SEL_IPSEC_SPI)
2096
2097 MLX5_SET(tirc, tirc, rx_hash_fn,
2098 mlx5e_rx_hash_fn(priv->params.rss_hfunc));
2099 if (priv->params.rss_hfunc == ETH_RSS_HASH_TOP) {
2100 void *rss_key = MLX5_ADDR_OF(tirc, tirc,
2101 rx_hash_toeplitz_key);
2102 size_t len = MLX5_FLD_SZ_BYTES(tirc,
2103 rx_hash_toeplitz_key);
2104
2105 MLX5_SET(tirc, tirc, rx_hash_symmetric, 1);
2106 memcpy(rss_key, priv->params.toeplitz_hash_key, len);
2107 }
2108
2109 switch (tt) {
2110 case MLX5E_TT_IPV4_TCP:
2111 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
2112 MLX5_L3_PROT_TYPE_IPV4);
2113 MLX5_SET(rx_hash_field_select, hfso, l4_prot_type,
2114 MLX5_L4_PROT_TYPE_TCP);
2115 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
2116 MLX5_HASH_IP_L4PORTS);
2117 break;
2118
2119 case MLX5E_TT_IPV6_TCP:
2120 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
2121 MLX5_L3_PROT_TYPE_IPV6);
2122 MLX5_SET(rx_hash_field_select, hfso, l4_prot_type,
2123 MLX5_L4_PROT_TYPE_TCP);
2124 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
2125 MLX5_HASH_IP_L4PORTS);
2126 break;
2127
2128 case MLX5E_TT_IPV4_UDP:
2129 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
2130 MLX5_L3_PROT_TYPE_IPV4);
2131 MLX5_SET(rx_hash_field_select, hfso, l4_prot_type,
2132 MLX5_L4_PROT_TYPE_UDP);
2133 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
2134 MLX5_HASH_IP_L4PORTS);
2135 break;
2136
2137 case MLX5E_TT_IPV6_UDP:
2138 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
2139 MLX5_L3_PROT_TYPE_IPV6);
2140 MLX5_SET(rx_hash_field_select, hfso, l4_prot_type,
2141 MLX5_L4_PROT_TYPE_UDP);
2142 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
2143 MLX5_HASH_IP_L4PORTS);
2144 break;
2145
2146 case MLX5E_TT_IPV4_IPSEC_AH:
2147 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
2148 MLX5_L3_PROT_TYPE_IPV4);
2149 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
2150 MLX5_HASH_IP_IPSEC_SPI);
2151 break;
2152
2153 case MLX5E_TT_IPV6_IPSEC_AH:
2154 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
2155 MLX5_L3_PROT_TYPE_IPV6);
2156 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
2157 MLX5_HASH_IP_IPSEC_SPI);
2158 break;
2159
2160 case MLX5E_TT_IPV4_IPSEC_ESP:
2161 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
2162 MLX5_L3_PROT_TYPE_IPV4);
2163 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
2164 MLX5_HASH_IP_IPSEC_SPI);
2165 break;
2166
2167 case MLX5E_TT_IPV6_IPSEC_ESP:
2168 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
2169 MLX5_L3_PROT_TYPE_IPV6);
2170 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
2171 MLX5_HASH_IP_IPSEC_SPI);
2172 break;
2173
2174 case MLX5E_TT_IPV4:
2175 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
2176 MLX5_L3_PROT_TYPE_IPV4);
2177 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
2178 MLX5_HASH_IP);
2179 break;
2180
2181 case MLX5E_TT_IPV6:
2182 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
2183 MLX5_L3_PROT_TYPE_IPV6);
2184 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
2185 MLX5_HASH_IP);
2186 break;
2187 default:
2188 WARN_ONCE(true, "%s: bad traffic type!\n", __func__);
2189 }
2190 }
2191
2192 static int mlx5e_modify_tirs_lro(struct mlx5e_priv *priv)
2193 {
2194 struct mlx5_core_dev *mdev = priv->mdev;
2195
2196 void *in;
2197 void *tirc;
2198 int inlen;
2199 int err;
2200 int tt;
2201 int ix;
2202
2203 inlen = MLX5_ST_SZ_BYTES(modify_tir_in);
2204 in = mlx5_vzalloc(inlen);
2205 if (!in)
2206 return -ENOMEM;
2207
2208 MLX5_SET(modify_tir_in, in, bitmask.lro, 1);
2209 tirc = MLX5_ADDR_OF(modify_tir_in, in, ctx);
2210
2211 mlx5e_build_tir_ctx_lro(tirc, priv);
2212
2213 for (tt = 0; tt < MLX5E_NUM_INDIR_TIRS; tt++) {
2214 err = mlx5_core_modify_tir(mdev, priv->indir_tir[tt].tirn, in,
2215 inlen);
2216 if (err)
2217 goto free_in;
2218 }
2219
2220 for (ix = 0; ix < priv->profile->max_nch(priv->mdev); ix++) {
2221 err = mlx5_core_modify_tir(mdev, priv->direct_tir[ix].tirn,
2222 in, inlen);
2223 if (err)
2224 goto free_in;
2225 }
2226
2227 free_in:
2228 kvfree(in);
2229
2230 return err;
2231 }
2232
2233 static int mlx5e_set_mtu(struct mlx5e_priv *priv, u16 mtu)
2234 {
2235 struct mlx5_core_dev *mdev = priv->mdev;
2236 u16 hw_mtu = MLX5E_SW2HW_MTU(mtu);
2237 int err;
2238
2239 err = mlx5_set_port_mtu(mdev, hw_mtu, 1);
2240 if (err)
2241 return err;
2242
2243 /* Update vport context MTU */
2244 mlx5_modify_nic_vport_mtu(mdev, hw_mtu);
2245 return 0;
2246 }
2247
2248 static void mlx5e_query_mtu(struct mlx5e_priv *priv, u16 *mtu)
2249 {
2250 struct mlx5_core_dev *mdev = priv->mdev;
2251 u16 hw_mtu = 0;
2252 int err;
2253
2254 err = mlx5_query_nic_vport_mtu(mdev, &hw_mtu);
2255 if (err || !hw_mtu) /* fallback to port oper mtu */
2256 mlx5_query_port_oper_mtu(mdev, &hw_mtu, 1);
2257
2258 *mtu = MLX5E_HW2SW_MTU(hw_mtu);
2259 }
2260
2261 static int mlx5e_set_dev_port_mtu(struct net_device *netdev)
2262 {
2263 struct mlx5e_priv *priv = netdev_priv(netdev);
2264 u16 mtu;
2265 int err;
2266
2267 err = mlx5e_set_mtu(priv, netdev->mtu);
2268 if (err)
2269 return err;
2270
2271 mlx5e_query_mtu(priv, &mtu);
2272 if (mtu != netdev->mtu)
2273 netdev_warn(netdev, "%s: VPort MTU %d is different than netdev mtu %d\n",
2274 __func__, mtu, netdev->mtu);
2275
2276 netdev->mtu = mtu;
2277 return 0;
2278 }
2279
2280 static void mlx5e_netdev_set_tcs(struct net_device *netdev)
2281 {
2282 struct mlx5e_priv *priv = netdev_priv(netdev);
2283 int nch = priv->params.num_channels;
2284 int ntc = priv->params.num_tc;
2285 int tc;
2286
2287 netdev_reset_tc(netdev);
2288
2289 if (ntc == 1)
2290 return;
2291
2292 netdev_set_num_tc(netdev, ntc);
2293
2294 /* Map netdev TCs to offset 0
2295 * We have our own UP to TXQ mapping for QoS
2296 */
2297 for (tc = 0; tc < ntc; tc++)
2298 netdev_set_tc_queue(netdev, tc, nch, 0);
2299 }
2300
2301 int mlx5e_open_locked(struct net_device *netdev)
2302 {
2303 struct mlx5e_priv *priv = netdev_priv(netdev);
2304 struct mlx5_core_dev *mdev = priv->mdev;
2305 int num_txqs;
2306 int err;
2307
2308 set_bit(MLX5E_STATE_OPENED, &priv->state);
2309
2310 mlx5e_netdev_set_tcs(netdev);
2311
2312 num_txqs = priv->params.num_channels * priv->params.num_tc;
2313 netif_set_real_num_tx_queues(netdev, num_txqs);
2314 netif_set_real_num_rx_queues(netdev, priv->params.num_channels);
2315
2316 err = mlx5e_open_channels(priv);
2317 if (err) {
2318 netdev_err(netdev, "%s: mlx5e_open_channels failed, %d\n",
2319 __func__, err);
2320 goto err_clear_state_opened_flag;
2321 }
2322
2323 err = mlx5e_refresh_tirs_self_loopback(priv->mdev, false);
2324 if (err) {
2325 netdev_err(netdev, "%s: mlx5e_refresh_tirs_self_loopback_enable failed, %d\n",
2326 __func__, err);
2327 goto err_close_channels;
2328 }
2329
2330 mlx5e_redirect_rqts(priv);
2331 mlx5e_update_carrier(priv);
2332 mlx5e_timestamp_init(priv);
2333 #ifdef CONFIG_RFS_ACCEL
2334 priv->netdev->rx_cpu_rmap = priv->mdev->rmap;
2335 #endif
2336 if (priv->profile->update_stats)
2337 queue_delayed_work(priv->wq, &priv->update_stats_work, 0);
2338
2339 if (MLX5_CAP_GEN(mdev, vport_group_manager)) {
2340 err = mlx5e_add_sqs_fwd_rules(priv);
2341 if (err)
2342 goto err_close_channels;
2343 }
2344 return 0;
2345
2346 err_close_channels:
2347 mlx5e_close_channels(priv);
2348 err_clear_state_opened_flag:
2349 clear_bit(MLX5E_STATE_OPENED, &priv->state);
2350 return err;
2351 }
2352
2353 int mlx5e_open(struct net_device *netdev)
2354 {
2355 struct mlx5e_priv *priv = netdev_priv(netdev);
2356 int err;
2357
2358 mutex_lock(&priv->state_lock);
2359 err = mlx5e_open_locked(netdev);
2360 mutex_unlock(&priv->state_lock);
2361
2362 return err;
2363 }
2364
2365 int mlx5e_close_locked(struct net_device *netdev)
2366 {
2367 struct mlx5e_priv *priv = netdev_priv(netdev);
2368 struct mlx5_core_dev *mdev = priv->mdev;
2369
2370 /* May already be CLOSED in case a previous configuration operation
2371 * (e.g RX/TX queue size change) that involves close&open failed.
2372 */
2373 if (!test_bit(MLX5E_STATE_OPENED, &priv->state))
2374 return 0;
2375
2376 clear_bit(MLX5E_STATE_OPENED, &priv->state);
2377
2378 if (MLX5_CAP_GEN(mdev, vport_group_manager))
2379 mlx5e_remove_sqs_fwd_rules(priv);
2380
2381 mlx5e_timestamp_cleanup(priv);
2382 netif_carrier_off(priv->netdev);
2383 mlx5e_redirect_rqts(priv);
2384 mlx5e_close_channels(priv);
2385
2386 return 0;
2387 }
2388
2389 int mlx5e_close(struct net_device *netdev)
2390 {
2391 struct mlx5e_priv *priv = netdev_priv(netdev);
2392 int err;
2393
2394 if (!netif_device_present(netdev))
2395 return -ENODEV;
2396
2397 mutex_lock(&priv->state_lock);
2398 err = mlx5e_close_locked(netdev);
2399 mutex_unlock(&priv->state_lock);
2400
2401 return err;
2402 }
2403
2404 static int mlx5e_create_drop_rq(struct mlx5e_priv *priv,
2405 struct mlx5e_rq *rq,
2406 struct mlx5e_rq_param *param)
2407 {
2408 struct mlx5_core_dev *mdev = priv->mdev;
2409 void *rqc = param->rqc;
2410 void *rqc_wq = MLX5_ADDR_OF(rqc, rqc, wq);
2411 int err;
2412
2413 param->wq.db_numa_node = param->wq.buf_numa_node;
2414
2415 err = mlx5_wq_ll_create(mdev, &param->wq, rqc_wq, &rq->wq,
2416 &rq->wq_ctrl);
2417 if (err)
2418 return err;
2419
2420 rq->priv = priv;
2421
2422 return 0;
2423 }
2424
2425 static int mlx5e_create_drop_cq(struct mlx5e_priv *priv,
2426 struct mlx5e_cq *cq,
2427 struct mlx5e_cq_param *param)
2428 {
2429 struct mlx5_core_dev *mdev = priv->mdev;
2430 struct mlx5_core_cq *mcq = &cq->mcq;
2431 int eqn_not_used;
2432 unsigned int irqn;
2433 int err;
2434
2435 err = mlx5_cqwq_create(mdev, &param->wq, param->cqc, &cq->wq,
2436 &cq->wq_ctrl);
2437 if (err)
2438 return err;
2439
2440 mlx5_vector2eqn(mdev, param->eq_ix, &eqn_not_used, &irqn);
2441
2442 mcq->cqe_sz = 64;
2443 mcq->set_ci_db = cq->wq_ctrl.db.db;
2444 mcq->arm_db = cq->wq_ctrl.db.db + 1;
2445 *mcq->set_ci_db = 0;
2446 *mcq->arm_db = 0;
2447 mcq->vector = param->eq_ix;
2448 mcq->comp = mlx5e_completion_event;
2449 mcq->event = mlx5e_cq_error_event;
2450 mcq->irqn = irqn;
2451
2452 cq->priv = priv;
2453
2454 return 0;
2455 }
2456
2457 static int mlx5e_open_drop_rq(struct mlx5e_priv *priv)
2458 {
2459 struct mlx5e_cq_param cq_param;
2460 struct mlx5e_rq_param rq_param;
2461 struct mlx5e_rq *rq = &priv->drop_rq;
2462 struct mlx5e_cq *cq = &priv->drop_rq.cq;
2463 int err;
2464
2465 memset(&cq_param, 0, sizeof(cq_param));
2466 memset(&rq_param, 0, sizeof(rq_param));
2467 mlx5e_build_drop_rq_param(&rq_param);
2468
2469 err = mlx5e_create_drop_cq(priv, cq, &cq_param);
2470 if (err)
2471 return err;
2472
2473 err = mlx5e_enable_cq(cq, &cq_param);
2474 if (err)
2475 goto err_destroy_cq;
2476
2477 err = mlx5e_create_drop_rq(priv, rq, &rq_param);
2478 if (err)
2479 goto err_disable_cq;
2480
2481 err = mlx5e_enable_rq(rq, &rq_param);
2482 if (err)
2483 goto err_destroy_rq;
2484
2485 return 0;
2486
2487 err_destroy_rq:
2488 mlx5e_destroy_rq(&priv->drop_rq);
2489
2490 err_disable_cq:
2491 mlx5e_disable_cq(&priv->drop_rq.cq);
2492
2493 err_destroy_cq:
2494 mlx5e_destroy_cq(&priv->drop_rq.cq);
2495
2496 return err;
2497 }
2498
2499 static void mlx5e_close_drop_rq(struct mlx5e_priv *priv)
2500 {
2501 mlx5e_disable_rq(&priv->drop_rq);
2502 mlx5e_destroy_rq(&priv->drop_rq);
2503 mlx5e_disable_cq(&priv->drop_rq.cq);
2504 mlx5e_destroy_cq(&priv->drop_rq.cq);
2505 }
2506
2507 static int mlx5e_create_tis(struct mlx5e_priv *priv, int tc)
2508 {
2509 struct mlx5_core_dev *mdev = priv->mdev;
2510 u32 in[MLX5_ST_SZ_DW(create_tis_in)] = {0};
2511 void *tisc = MLX5_ADDR_OF(create_tis_in, in, ctx);
2512
2513 MLX5_SET(tisc, tisc, prio, tc << 1);
2514 MLX5_SET(tisc, tisc, transport_domain, mdev->mlx5e_res.td.tdn);
2515
2516 if (mlx5_lag_is_lacp_owner(mdev))
2517 MLX5_SET(tisc, tisc, strict_lag_tx_port_affinity, 1);
2518
2519 return mlx5_core_create_tis(mdev, in, sizeof(in), &priv->tisn[tc]);
2520 }
2521
2522 static void mlx5e_destroy_tis(struct mlx5e_priv *priv, int tc)
2523 {
2524 mlx5_core_destroy_tis(priv->mdev, priv->tisn[tc]);
2525 }
2526
2527 int mlx5e_create_tises(struct mlx5e_priv *priv)
2528 {
2529 int err;
2530 int tc;
2531
2532 for (tc = 0; tc < priv->profile->max_tc; tc++) {
2533 err = mlx5e_create_tis(priv, tc);
2534 if (err)
2535 goto err_close_tises;
2536 }
2537
2538 return 0;
2539
2540 err_close_tises:
2541 for (tc--; tc >= 0; tc--)
2542 mlx5e_destroy_tis(priv, tc);
2543
2544 return err;
2545 }
2546
2547 void mlx5e_cleanup_nic_tx(struct mlx5e_priv *priv)
2548 {
2549 int tc;
2550
2551 for (tc = 0; tc < priv->profile->max_tc; tc++)
2552 mlx5e_destroy_tis(priv, tc);
2553 }
2554
2555 static void mlx5e_build_indir_tir_ctx(struct mlx5e_priv *priv, u32 *tirc,
2556 enum mlx5e_traffic_types tt)
2557 {
2558 MLX5_SET(tirc, tirc, transport_domain, priv->mdev->mlx5e_res.td.tdn);
2559
2560 mlx5e_build_tir_ctx_lro(tirc, priv);
2561
2562 MLX5_SET(tirc, tirc, disp_type, MLX5_TIRC_DISP_TYPE_INDIRECT);
2563 MLX5_SET(tirc, tirc, indirect_table, priv->indir_rqt.rqtn);
2564 mlx5e_build_indir_tir_ctx_hash(priv, tirc, tt);
2565 }
2566
2567 static void mlx5e_build_direct_tir_ctx(struct mlx5e_priv *priv, u32 *tirc,
2568 u32 rqtn)
2569 {
2570 MLX5_SET(tirc, tirc, transport_domain, priv->mdev->mlx5e_res.td.tdn);
2571
2572 mlx5e_build_tir_ctx_lro(tirc, priv);
2573
2574 MLX5_SET(tirc, tirc, disp_type, MLX5_TIRC_DISP_TYPE_INDIRECT);
2575 MLX5_SET(tirc, tirc, indirect_table, rqtn);
2576 MLX5_SET(tirc, tirc, rx_hash_fn, MLX5_RX_HASH_FN_INVERTED_XOR8);
2577 }
2578
2579 static int mlx5e_create_indirect_tirs(struct mlx5e_priv *priv)
2580 {
2581 struct mlx5e_tir *tir;
2582 void *tirc;
2583 int inlen;
2584 int err;
2585 u32 *in;
2586 int tt;
2587
2588 inlen = MLX5_ST_SZ_BYTES(create_tir_in);
2589 in = mlx5_vzalloc(inlen);
2590 if (!in)
2591 return -ENOMEM;
2592
2593 for (tt = 0; tt < MLX5E_NUM_INDIR_TIRS; tt++) {
2594 memset(in, 0, inlen);
2595 tir = &priv->indir_tir[tt];
2596 tirc = MLX5_ADDR_OF(create_tir_in, in, ctx);
2597 mlx5e_build_indir_tir_ctx(priv, tirc, tt);
2598 err = mlx5e_create_tir(priv->mdev, tir, in, inlen);
2599 if (err)
2600 goto err_destroy_tirs;
2601 }
2602
2603 kvfree(in);
2604
2605 return 0;
2606
2607 err_destroy_tirs:
2608 for (tt--; tt >= 0; tt--)
2609 mlx5e_destroy_tir(priv->mdev, &priv->indir_tir[tt]);
2610
2611 kvfree(in);
2612
2613 return err;
2614 }
2615
2616 int mlx5e_create_direct_tirs(struct mlx5e_priv *priv)
2617 {
2618 int nch = priv->profile->max_nch(priv->mdev);
2619 struct mlx5e_tir *tir;
2620 void *tirc;
2621 int inlen;
2622 int err;
2623 u32 *in;
2624 int ix;
2625
2626 inlen = MLX5_ST_SZ_BYTES(create_tir_in);
2627 in = mlx5_vzalloc(inlen);
2628 if (!in)
2629 return -ENOMEM;
2630
2631 for (ix = 0; ix < nch; ix++) {
2632 memset(in, 0, inlen);
2633 tir = &priv->direct_tir[ix];
2634 tirc = MLX5_ADDR_OF(create_tir_in, in, ctx);
2635 mlx5e_build_direct_tir_ctx(priv, tirc,
2636 priv->direct_tir[ix].rqt.rqtn);
2637 err = mlx5e_create_tir(priv->mdev, tir, in, inlen);
2638 if (err)
2639 goto err_destroy_ch_tirs;
2640 }
2641
2642 kvfree(in);
2643
2644 return 0;
2645
2646 err_destroy_ch_tirs:
2647 for (ix--; ix >= 0; ix--)
2648 mlx5e_destroy_tir(priv->mdev, &priv->direct_tir[ix]);
2649
2650 kvfree(in);
2651
2652 return err;
2653 }
2654
2655 static void mlx5e_destroy_indirect_tirs(struct mlx5e_priv *priv)
2656 {
2657 int i;
2658
2659 for (i = 0; i < MLX5E_NUM_INDIR_TIRS; i++)
2660 mlx5e_destroy_tir(priv->mdev, &priv->indir_tir[i]);
2661 }
2662
2663 void mlx5e_destroy_direct_tirs(struct mlx5e_priv *priv)
2664 {
2665 int nch = priv->profile->max_nch(priv->mdev);
2666 int i;
2667
2668 for (i = 0; i < nch; i++)
2669 mlx5e_destroy_tir(priv->mdev, &priv->direct_tir[i]);
2670 }
2671
2672 int mlx5e_modify_rqs_vsd(struct mlx5e_priv *priv, bool vsd)
2673 {
2674 int err = 0;
2675 int i;
2676
2677 if (!test_bit(MLX5E_STATE_OPENED, &priv->state))
2678 return 0;
2679
2680 for (i = 0; i < priv->params.num_channels; i++) {
2681 err = mlx5e_modify_rq_vsd(&priv->channel[i]->rq, vsd);
2682 if (err)
2683 return err;
2684 }
2685
2686 return 0;
2687 }
2688
2689 static int mlx5e_setup_tc(struct net_device *netdev, u8 tc)
2690 {
2691 struct mlx5e_priv *priv = netdev_priv(netdev);
2692 bool was_opened;
2693 int err = 0;
2694
2695 if (tc && tc != MLX5E_MAX_NUM_TC)
2696 return -EINVAL;
2697
2698 mutex_lock(&priv->state_lock);
2699
2700 was_opened = test_bit(MLX5E_STATE_OPENED, &priv->state);
2701 if (was_opened)
2702 mlx5e_close_locked(priv->netdev);
2703
2704 priv->params.num_tc = tc ? tc : 1;
2705
2706 if (was_opened)
2707 err = mlx5e_open_locked(priv->netdev);
2708
2709 mutex_unlock(&priv->state_lock);
2710
2711 return err;
2712 }
2713
2714 static int mlx5e_ndo_setup_tc(struct net_device *dev, u32 handle,
2715 __be16 proto, struct tc_to_netdev *tc)
2716 {
2717 struct mlx5e_priv *priv = netdev_priv(dev);
2718
2719 if (TC_H_MAJ(handle) != TC_H_MAJ(TC_H_INGRESS))
2720 goto mqprio;
2721
2722 switch (tc->type) {
2723 case TC_SETUP_CLSFLOWER:
2724 switch (tc->cls_flower->command) {
2725 case TC_CLSFLOWER_REPLACE:
2726 return mlx5e_configure_flower(priv, proto, tc->cls_flower);
2727 case TC_CLSFLOWER_DESTROY:
2728 return mlx5e_delete_flower(priv, tc->cls_flower);
2729 case TC_CLSFLOWER_STATS:
2730 return mlx5e_stats_flower(priv, tc->cls_flower);
2731 }
2732 default:
2733 return -EOPNOTSUPP;
2734 }
2735
2736 mqprio:
2737 if (tc->type != TC_SETUP_MQPRIO)
2738 return -EINVAL;
2739
2740 return mlx5e_setup_tc(dev, tc->tc);
2741 }
2742
2743 static void
2744 mlx5e_get_stats(struct net_device *dev, struct rtnl_link_stats64 *stats)
2745 {
2746 struct mlx5e_priv *priv = netdev_priv(dev);
2747 struct mlx5e_sw_stats *sstats = &priv->stats.sw;
2748 struct mlx5e_vport_stats *vstats = &priv->stats.vport;
2749 struct mlx5e_pport_stats *pstats = &priv->stats.pport;
2750
2751 if (mlx5e_is_uplink_rep(priv)) {
2752 stats->rx_packets = PPORT_802_3_GET(pstats, a_frames_received_ok);
2753 stats->rx_bytes = PPORT_802_3_GET(pstats, a_octets_received_ok);
2754 stats->tx_packets = PPORT_802_3_GET(pstats, a_frames_transmitted_ok);
2755 stats->tx_bytes = PPORT_802_3_GET(pstats, a_octets_transmitted_ok);
2756 } else {
2757 stats->rx_packets = sstats->rx_packets;
2758 stats->rx_bytes = sstats->rx_bytes;
2759 stats->tx_packets = sstats->tx_packets;
2760 stats->tx_bytes = sstats->tx_bytes;
2761 stats->tx_dropped = sstats->tx_queue_dropped;
2762 }
2763
2764 stats->rx_dropped = priv->stats.qcnt.rx_out_of_buffer;
2765
2766 stats->rx_length_errors =
2767 PPORT_802_3_GET(pstats, a_in_range_length_errors) +
2768 PPORT_802_3_GET(pstats, a_out_of_range_length_field) +
2769 PPORT_802_3_GET(pstats, a_frame_too_long_errors);
2770 stats->rx_crc_errors =
2771 PPORT_802_3_GET(pstats, a_frame_check_sequence_errors);
2772 stats->rx_frame_errors = PPORT_802_3_GET(pstats, a_alignment_errors);
2773 stats->tx_aborted_errors = PPORT_2863_GET(pstats, if_out_discards);
2774 stats->tx_carrier_errors =
2775 PPORT_802_3_GET(pstats, a_symbol_error_during_carrier);
2776 stats->rx_errors = stats->rx_length_errors + stats->rx_crc_errors +
2777 stats->rx_frame_errors;
2778 stats->tx_errors = stats->tx_aborted_errors + stats->tx_carrier_errors;
2779
2780 /* vport multicast also counts packets that are dropped due to steering
2781 * or rx out of buffer
2782 */
2783 stats->multicast =
2784 VPORT_COUNTER_GET(vstats, received_eth_multicast.packets);
2785
2786 }
2787
2788 static void mlx5e_set_rx_mode(struct net_device *dev)
2789 {
2790 struct mlx5e_priv *priv = netdev_priv(dev);
2791
2792 queue_work(priv->wq, &priv->set_rx_mode_work);
2793 }
2794
2795 static int mlx5e_set_mac(struct net_device *netdev, void *addr)
2796 {
2797 struct mlx5e_priv *priv = netdev_priv(netdev);
2798 struct sockaddr *saddr = addr;
2799
2800 if (!is_valid_ether_addr(saddr->sa_data))
2801 return -EADDRNOTAVAIL;
2802
2803 netif_addr_lock_bh(netdev);
2804 ether_addr_copy(netdev->dev_addr, saddr->sa_data);
2805 netif_addr_unlock_bh(netdev);
2806
2807 queue_work(priv->wq, &priv->set_rx_mode_work);
2808
2809 return 0;
2810 }
2811
2812 #define MLX5E_SET_FEATURE(netdev, feature, enable) \
2813 do { \
2814 if (enable) \
2815 netdev->features |= feature; \
2816 else \
2817 netdev->features &= ~feature; \
2818 } while (0)
2819
2820 typedef int (*mlx5e_feature_handler)(struct net_device *netdev, bool enable);
2821
2822 static int set_feature_lro(struct net_device *netdev, bool enable)
2823 {
2824 struct mlx5e_priv *priv = netdev_priv(netdev);
2825 bool was_opened = test_bit(MLX5E_STATE_OPENED, &priv->state);
2826 int err;
2827
2828 mutex_lock(&priv->state_lock);
2829
2830 if (was_opened && (priv->params.rq_wq_type == MLX5_WQ_TYPE_LINKED_LIST))
2831 mlx5e_close_locked(priv->netdev);
2832
2833 priv->params.lro_en = enable;
2834 err = mlx5e_modify_tirs_lro(priv);
2835 if (err) {
2836 netdev_err(netdev, "lro modify failed, %d\n", err);
2837 priv->params.lro_en = !enable;
2838 }
2839
2840 if (was_opened && (priv->params.rq_wq_type == MLX5_WQ_TYPE_LINKED_LIST))
2841 mlx5e_open_locked(priv->netdev);
2842
2843 mutex_unlock(&priv->state_lock);
2844
2845 return err;
2846 }
2847
2848 static int set_feature_vlan_filter(struct net_device *netdev, bool enable)
2849 {
2850 struct mlx5e_priv *priv = netdev_priv(netdev);
2851
2852 if (enable)
2853 mlx5e_enable_vlan_filter(priv);
2854 else
2855 mlx5e_disable_vlan_filter(priv);
2856
2857 return 0;
2858 }
2859
2860 static int set_feature_tc_num_filters(struct net_device *netdev, bool enable)
2861 {
2862 struct mlx5e_priv *priv = netdev_priv(netdev);
2863
2864 if (!enable && mlx5e_tc_num_filters(priv)) {
2865 netdev_err(netdev,
2866 "Active offloaded tc filters, can't turn hw_tc_offload off\n");
2867 return -EINVAL;
2868 }
2869
2870 return 0;
2871 }
2872
2873 static int set_feature_rx_all(struct net_device *netdev, bool enable)
2874 {
2875 struct mlx5e_priv *priv = netdev_priv(netdev);
2876 struct mlx5_core_dev *mdev = priv->mdev;
2877
2878 return mlx5_set_port_fcs(mdev, !enable);
2879 }
2880
2881 static int set_feature_rx_vlan(struct net_device *netdev, bool enable)
2882 {
2883 struct mlx5e_priv *priv = netdev_priv(netdev);
2884 int err;
2885
2886 mutex_lock(&priv->state_lock);
2887
2888 priv->params.vlan_strip_disable = !enable;
2889 err = mlx5e_modify_rqs_vsd(priv, !enable);
2890 if (err)
2891 priv->params.vlan_strip_disable = enable;
2892
2893 mutex_unlock(&priv->state_lock);
2894
2895 return err;
2896 }
2897
2898 #ifdef CONFIG_RFS_ACCEL
2899 static int set_feature_arfs(struct net_device *netdev, bool enable)
2900 {
2901 struct mlx5e_priv *priv = netdev_priv(netdev);
2902 int err;
2903
2904 if (enable)
2905 err = mlx5e_arfs_enable(priv);
2906 else
2907 err = mlx5e_arfs_disable(priv);
2908
2909 return err;
2910 }
2911 #endif
2912
2913 static int mlx5e_handle_feature(struct net_device *netdev,
2914 netdev_features_t wanted_features,
2915 netdev_features_t feature,
2916 mlx5e_feature_handler feature_handler)
2917 {
2918 netdev_features_t changes = wanted_features ^ netdev->features;
2919 bool enable = !!(wanted_features & feature);
2920 int err;
2921
2922 if (!(changes & feature))
2923 return 0;
2924
2925 err = feature_handler(netdev, enable);
2926 if (err) {
2927 netdev_err(netdev, "%s feature 0x%llx failed err %d\n",
2928 enable ? "Enable" : "Disable", feature, err);
2929 return err;
2930 }
2931
2932 MLX5E_SET_FEATURE(netdev, feature, enable);
2933 return 0;
2934 }
2935
2936 static int mlx5e_set_features(struct net_device *netdev,
2937 netdev_features_t features)
2938 {
2939 int err;
2940
2941 err = mlx5e_handle_feature(netdev, features, NETIF_F_LRO,
2942 set_feature_lro);
2943 err |= mlx5e_handle_feature(netdev, features,
2944 NETIF_F_HW_VLAN_CTAG_FILTER,
2945 set_feature_vlan_filter);
2946 err |= mlx5e_handle_feature(netdev, features, NETIF_F_HW_TC,
2947 set_feature_tc_num_filters);
2948 err |= mlx5e_handle_feature(netdev, features, NETIF_F_RXALL,
2949 set_feature_rx_all);
2950 err |= mlx5e_handle_feature(netdev, features, NETIF_F_HW_VLAN_CTAG_RX,
2951 set_feature_rx_vlan);
2952 #ifdef CONFIG_RFS_ACCEL
2953 err |= mlx5e_handle_feature(netdev, features, NETIF_F_NTUPLE,
2954 set_feature_arfs);
2955 #endif
2956
2957 return err ? -EINVAL : 0;
2958 }
2959
2960 static int mlx5e_change_mtu(struct net_device *netdev, int new_mtu)
2961 {
2962 struct mlx5e_priv *priv = netdev_priv(netdev);
2963 bool was_opened;
2964 int err = 0;
2965 bool reset;
2966
2967 mutex_lock(&priv->state_lock);
2968
2969 reset = !priv->params.lro_en &&
2970 (priv->params.rq_wq_type !=
2971 MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ);
2972
2973 was_opened = test_bit(MLX5E_STATE_OPENED, &priv->state);
2974 if (was_opened && reset)
2975 mlx5e_close_locked(netdev);
2976
2977 netdev->mtu = new_mtu;
2978 mlx5e_set_dev_port_mtu(netdev);
2979
2980 if (was_opened && reset)
2981 err = mlx5e_open_locked(netdev);
2982
2983 mutex_unlock(&priv->state_lock);
2984
2985 return err;
2986 }
2987
2988 static int mlx5e_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
2989 {
2990 switch (cmd) {
2991 case SIOCSHWTSTAMP:
2992 return mlx5e_hwstamp_set(dev, ifr);
2993 case SIOCGHWTSTAMP:
2994 return mlx5e_hwstamp_get(dev, ifr);
2995 default:
2996 return -EOPNOTSUPP;
2997 }
2998 }
2999
3000 static int mlx5e_set_vf_mac(struct net_device *dev, int vf, u8 *mac)
3001 {
3002 struct mlx5e_priv *priv = netdev_priv(dev);
3003 struct mlx5_core_dev *mdev = priv->mdev;
3004
3005 return mlx5_eswitch_set_vport_mac(mdev->priv.eswitch, vf + 1, mac);
3006 }
3007
3008 static int mlx5e_set_vf_vlan(struct net_device *dev, int vf, u16 vlan, u8 qos,
3009 __be16 vlan_proto)
3010 {
3011 struct mlx5e_priv *priv = netdev_priv(dev);
3012 struct mlx5_core_dev *mdev = priv->mdev;
3013
3014 if (vlan_proto != htons(ETH_P_8021Q))
3015 return -EPROTONOSUPPORT;
3016
3017 return mlx5_eswitch_set_vport_vlan(mdev->priv.eswitch, vf + 1,
3018 vlan, qos);
3019 }
3020
3021 static int mlx5e_set_vf_spoofchk(struct net_device *dev, int vf, bool setting)
3022 {
3023 struct mlx5e_priv *priv = netdev_priv(dev);
3024 struct mlx5_core_dev *mdev = priv->mdev;
3025
3026 return mlx5_eswitch_set_vport_spoofchk(mdev->priv.eswitch, vf + 1, setting);
3027 }
3028
3029 static int mlx5e_set_vf_trust(struct net_device *dev, int vf, bool setting)
3030 {
3031 struct mlx5e_priv *priv = netdev_priv(dev);
3032 struct mlx5_core_dev *mdev = priv->mdev;
3033
3034 return mlx5_eswitch_set_vport_trust(mdev->priv.eswitch, vf + 1, setting);
3035 }
3036
3037 static int mlx5e_set_vf_rate(struct net_device *dev, int vf, int min_tx_rate,
3038 int max_tx_rate)
3039 {
3040 struct mlx5e_priv *priv = netdev_priv(dev);
3041 struct mlx5_core_dev *mdev = priv->mdev;
3042
3043 return mlx5_eswitch_set_vport_rate(mdev->priv.eswitch, vf + 1,
3044 max_tx_rate, min_tx_rate);
3045 }
3046
3047 static int mlx5_vport_link2ifla(u8 esw_link)
3048 {
3049 switch (esw_link) {
3050 case MLX5_ESW_VPORT_ADMIN_STATE_DOWN:
3051 return IFLA_VF_LINK_STATE_DISABLE;
3052 case MLX5_ESW_VPORT_ADMIN_STATE_UP:
3053 return IFLA_VF_LINK_STATE_ENABLE;
3054 }
3055 return IFLA_VF_LINK_STATE_AUTO;
3056 }
3057
3058 static int mlx5_ifla_link2vport(u8 ifla_link)
3059 {
3060 switch (ifla_link) {
3061 case IFLA_VF_LINK_STATE_DISABLE:
3062 return MLX5_ESW_VPORT_ADMIN_STATE_DOWN;
3063 case IFLA_VF_LINK_STATE_ENABLE:
3064 return MLX5_ESW_VPORT_ADMIN_STATE_UP;
3065 }
3066 return MLX5_ESW_VPORT_ADMIN_STATE_AUTO;
3067 }
3068
3069 static int mlx5e_set_vf_link_state(struct net_device *dev, int vf,
3070 int link_state)
3071 {
3072 struct mlx5e_priv *priv = netdev_priv(dev);
3073 struct mlx5_core_dev *mdev = priv->mdev;
3074
3075 return mlx5_eswitch_set_vport_state(mdev->priv.eswitch, vf + 1,
3076 mlx5_ifla_link2vport(link_state));
3077 }
3078
3079 static int mlx5e_get_vf_config(struct net_device *dev,
3080 int vf, struct ifla_vf_info *ivi)
3081 {
3082 struct mlx5e_priv *priv = netdev_priv(dev);
3083 struct mlx5_core_dev *mdev = priv->mdev;
3084 int err;
3085
3086 err = mlx5_eswitch_get_vport_config(mdev->priv.eswitch, vf + 1, ivi);
3087 if (err)
3088 return err;
3089 ivi->linkstate = mlx5_vport_link2ifla(ivi->linkstate);
3090 return 0;
3091 }
3092
3093 static int mlx5e_get_vf_stats(struct net_device *dev,
3094 int vf, struct ifla_vf_stats *vf_stats)
3095 {
3096 struct mlx5e_priv *priv = netdev_priv(dev);
3097 struct mlx5_core_dev *mdev = priv->mdev;
3098
3099 return mlx5_eswitch_get_vport_stats(mdev->priv.eswitch, vf + 1,
3100 vf_stats);
3101 }
3102
3103 static void mlx5e_add_vxlan_port(struct net_device *netdev,
3104 struct udp_tunnel_info *ti)
3105 {
3106 struct mlx5e_priv *priv = netdev_priv(netdev);
3107
3108 if (ti->type != UDP_TUNNEL_TYPE_VXLAN)
3109 return;
3110
3111 if (!mlx5e_vxlan_allowed(priv->mdev))
3112 return;
3113
3114 mlx5e_vxlan_queue_work(priv, ti->sa_family, be16_to_cpu(ti->port), 1);
3115 }
3116
3117 static void mlx5e_del_vxlan_port(struct net_device *netdev,
3118 struct udp_tunnel_info *ti)
3119 {
3120 struct mlx5e_priv *priv = netdev_priv(netdev);
3121
3122 if (ti->type != UDP_TUNNEL_TYPE_VXLAN)
3123 return;
3124
3125 if (!mlx5e_vxlan_allowed(priv->mdev))
3126 return;
3127
3128 mlx5e_vxlan_queue_work(priv, ti->sa_family, be16_to_cpu(ti->port), 0);
3129 }
3130
3131 static netdev_features_t mlx5e_vxlan_features_check(struct mlx5e_priv *priv,
3132 struct sk_buff *skb,
3133 netdev_features_t features)
3134 {
3135 struct udphdr *udph;
3136 u16 proto;
3137 u16 port = 0;
3138
3139 switch (vlan_get_protocol(skb)) {
3140 case htons(ETH_P_IP):
3141 proto = ip_hdr(skb)->protocol;
3142 break;
3143 case htons(ETH_P_IPV6):
3144 proto = ipv6_hdr(skb)->nexthdr;
3145 break;
3146 default:
3147 goto out;
3148 }
3149
3150 if (proto == IPPROTO_UDP) {
3151 udph = udp_hdr(skb);
3152 port = be16_to_cpu(udph->dest);
3153 }
3154
3155 /* Verify if UDP port is being offloaded by HW */
3156 if (port && mlx5e_vxlan_lookup_port(priv, port))
3157 return features;
3158
3159 out:
3160 /* Disable CSUM and GSO if the udp dport is not offloaded by HW */
3161 return features & ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK);
3162 }
3163
3164 static netdev_features_t mlx5e_features_check(struct sk_buff *skb,
3165 struct net_device *netdev,
3166 netdev_features_t features)
3167 {
3168 struct mlx5e_priv *priv = netdev_priv(netdev);
3169
3170 features = vlan_features_check(skb, features);
3171 features = vxlan_features_check(skb, features);
3172
3173 /* Validate if the tunneled packet is being offloaded by HW */
3174 if (skb->encapsulation &&
3175 (features & NETIF_F_CSUM_MASK || features & NETIF_F_GSO_MASK))
3176 return mlx5e_vxlan_features_check(priv, skb, features);
3177
3178 return features;
3179 }
3180
3181 static void mlx5e_tx_timeout(struct net_device *dev)
3182 {
3183 struct mlx5e_priv *priv = netdev_priv(dev);
3184 bool sched_work = false;
3185 int i;
3186
3187 netdev_err(dev, "TX timeout detected\n");
3188
3189 for (i = 0; i < priv->params.num_channels * priv->params.num_tc; i++) {
3190 struct mlx5e_sq *sq = priv->txq_to_sq_map[i];
3191
3192 if (!netif_xmit_stopped(netdev_get_tx_queue(dev, i)))
3193 continue;
3194 sched_work = true;
3195 clear_bit(MLX5E_SQ_STATE_ENABLED, &sq->state);
3196 netdev_err(dev, "TX timeout on queue: %d, SQ: 0x%x, CQ: 0x%x, SQ Cons: 0x%x SQ Prod: 0x%x\n",
3197 i, sq->sqn, sq->cq.mcq.cqn, sq->cc, sq->pc);
3198 }
3199
3200 if (sched_work && test_bit(MLX5E_STATE_OPENED, &priv->state))
3201 schedule_work(&priv->tx_timeout_work);
3202 }
3203
3204 static int mlx5e_xdp_set(struct net_device *netdev, struct bpf_prog *prog)
3205 {
3206 struct mlx5e_priv *priv = netdev_priv(netdev);
3207 struct bpf_prog *old_prog;
3208 int err = 0;
3209 bool reset, was_opened;
3210 int i;
3211
3212 mutex_lock(&priv->state_lock);
3213
3214 if ((netdev->features & NETIF_F_LRO) && prog) {
3215 netdev_warn(netdev, "can't set XDP while LRO is on, disable LRO first\n");
3216 err = -EINVAL;
3217 goto unlock;
3218 }
3219
3220 was_opened = test_bit(MLX5E_STATE_OPENED, &priv->state);
3221 /* no need for full reset when exchanging programs */
3222 reset = (!priv->xdp_prog || !prog);
3223
3224 if (was_opened && reset)
3225 mlx5e_close_locked(netdev);
3226 if (was_opened && !reset) {
3227 /* num_channels is invariant here, so we can take the
3228 * batched reference right upfront.
3229 */
3230 prog = bpf_prog_add(prog, priv->params.num_channels);
3231 if (IS_ERR(prog)) {
3232 err = PTR_ERR(prog);
3233 goto unlock;
3234 }
3235 }
3236
3237 /* exchange programs, extra prog reference we got from caller
3238 * as long as we don't fail from this point onwards.
3239 */
3240 old_prog = xchg(&priv->xdp_prog, prog);
3241 if (old_prog)
3242 bpf_prog_put(old_prog);
3243
3244 if (reset) /* change RQ type according to priv->xdp_prog */
3245 mlx5e_set_rq_priv_params(priv);
3246
3247 if (was_opened && reset)
3248 mlx5e_open_locked(netdev);
3249
3250 if (!test_bit(MLX5E_STATE_OPENED, &priv->state) || reset)
3251 goto unlock;
3252
3253 /* exchanging programs w/o reset, we update ref counts on behalf
3254 * of the channels RQs here.
3255 */
3256 for (i = 0; i < priv->params.num_channels; i++) {
3257 struct mlx5e_channel *c = priv->channel[i];
3258
3259 clear_bit(MLX5E_RQ_STATE_ENABLED, &c->rq.state);
3260 napi_synchronize(&c->napi);
3261 /* prevent mlx5e_poll_rx_cq from accessing rq->xdp_prog */
3262
3263 old_prog = xchg(&c->rq.xdp_prog, prog);
3264
3265 set_bit(MLX5E_RQ_STATE_ENABLED, &c->rq.state);
3266 /* napi_schedule in case we have missed anything */
3267 set_bit(MLX5E_CHANNEL_NAPI_SCHED, &c->flags);
3268 napi_schedule(&c->napi);
3269
3270 if (old_prog)
3271 bpf_prog_put(old_prog);
3272 }
3273
3274 unlock:
3275 mutex_unlock(&priv->state_lock);
3276 return err;
3277 }
3278
3279 static bool mlx5e_xdp_attached(struct net_device *dev)
3280 {
3281 struct mlx5e_priv *priv = netdev_priv(dev);
3282
3283 return !!priv->xdp_prog;
3284 }
3285
3286 static int mlx5e_xdp(struct net_device *dev, struct netdev_xdp *xdp)
3287 {
3288 switch (xdp->command) {
3289 case XDP_SETUP_PROG:
3290 return mlx5e_xdp_set(dev, xdp->prog);
3291 case XDP_QUERY_PROG:
3292 xdp->prog_attached = mlx5e_xdp_attached(dev);
3293 return 0;
3294 default:
3295 return -EINVAL;
3296 }
3297 }
3298
3299 #ifdef CONFIG_NET_POLL_CONTROLLER
3300 /* Fake "interrupt" called by netpoll (eg netconsole) to send skbs without
3301 * reenabling interrupts.
3302 */
3303 static void mlx5e_netpoll(struct net_device *dev)
3304 {
3305 struct mlx5e_priv *priv = netdev_priv(dev);
3306 int i;
3307
3308 for (i = 0; i < priv->params.num_channels; i++)
3309 napi_schedule(&priv->channel[i]->napi);
3310 }
3311 #endif
3312
3313 static const struct net_device_ops mlx5e_netdev_ops_basic = {
3314 .ndo_open = mlx5e_open,
3315 .ndo_stop = mlx5e_close,
3316 .ndo_start_xmit = mlx5e_xmit,
3317 .ndo_setup_tc = mlx5e_ndo_setup_tc,
3318 .ndo_select_queue = mlx5e_select_queue,
3319 .ndo_get_stats64 = mlx5e_get_stats,
3320 .ndo_set_rx_mode = mlx5e_set_rx_mode,
3321 .ndo_set_mac_address = mlx5e_set_mac,
3322 .ndo_vlan_rx_add_vid = mlx5e_vlan_rx_add_vid,
3323 .ndo_vlan_rx_kill_vid = mlx5e_vlan_rx_kill_vid,
3324 .ndo_set_features = mlx5e_set_features,
3325 .ndo_change_mtu = mlx5e_change_mtu,
3326 .ndo_do_ioctl = mlx5e_ioctl,
3327 .ndo_set_tx_maxrate = mlx5e_set_tx_maxrate,
3328 #ifdef CONFIG_RFS_ACCEL
3329 .ndo_rx_flow_steer = mlx5e_rx_flow_steer,
3330 #endif
3331 .ndo_tx_timeout = mlx5e_tx_timeout,
3332 .ndo_xdp = mlx5e_xdp,
3333 #ifdef CONFIG_NET_POLL_CONTROLLER
3334 .ndo_poll_controller = mlx5e_netpoll,
3335 #endif
3336 };
3337
3338 static const struct net_device_ops mlx5e_netdev_ops_sriov = {
3339 .ndo_open = mlx5e_open,
3340 .ndo_stop = mlx5e_close,
3341 .ndo_start_xmit = mlx5e_xmit,
3342 .ndo_setup_tc = mlx5e_ndo_setup_tc,
3343 .ndo_select_queue = mlx5e_select_queue,
3344 .ndo_get_stats64 = mlx5e_get_stats,
3345 .ndo_set_rx_mode = mlx5e_set_rx_mode,
3346 .ndo_set_mac_address = mlx5e_set_mac,
3347 .ndo_vlan_rx_add_vid = mlx5e_vlan_rx_add_vid,
3348 .ndo_vlan_rx_kill_vid = mlx5e_vlan_rx_kill_vid,
3349 .ndo_set_features = mlx5e_set_features,
3350 .ndo_change_mtu = mlx5e_change_mtu,
3351 .ndo_do_ioctl = mlx5e_ioctl,
3352 .ndo_udp_tunnel_add = mlx5e_add_vxlan_port,
3353 .ndo_udp_tunnel_del = mlx5e_del_vxlan_port,
3354 .ndo_set_tx_maxrate = mlx5e_set_tx_maxrate,
3355 .ndo_features_check = mlx5e_features_check,
3356 #ifdef CONFIG_RFS_ACCEL
3357 .ndo_rx_flow_steer = mlx5e_rx_flow_steer,
3358 #endif
3359 .ndo_set_vf_mac = mlx5e_set_vf_mac,
3360 .ndo_set_vf_vlan = mlx5e_set_vf_vlan,
3361 .ndo_set_vf_spoofchk = mlx5e_set_vf_spoofchk,
3362 .ndo_set_vf_trust = mlx5e_set_vf_trust,
3363 .ndo_set_vf_rate = mlx5e_set_vf_rate,
3364 .ndo_get_vf_config = mlx5e_get_vf_config,
3365 .ndo_set_vf_link_state = mlx5e_set_vf_link_state,
3366 .ndo_get_vf_stats = mlx5e_get_vf_stats,
3367 .ndo_tx_timeout = mlx5e_tx_timeout,
3368 .ndo_xdp = mlx5e_xdp,
3369 #ifdef CONFIG_NET_POLL_CONTROLLER
3370 .ndo_poll_controller = mlx5e_netpoll,
3371 #endif
3372 .ndo_has_offload_stats = mlx5e_has_offload_stats,
3373 .ndo_get_offload_stats = mlx5e_get_offload_stats,
3374 };
3375
3376 static int mlx5e_check_required_hca_cap(struct mlx5_core_dev *mdev)
3377 {
3378 if (MLX5_CAP_GEN(mdev, port_type) != MLX5_CAP_PORT_TYPE_ETH)
3379 return -EOPNOTSUPP;
3380 if (!MLX5_CAP_GEN(mdev, eth_net_offloads) ||
3381 !MLX5_CAP_GEN(mdev, nic_flow_table) ||
3382 !MLX5_CAP_ETH(mdev, csum_cap) ||
3383 !MLX5_CAP_ETH(mdev, max_lso_cap) ||
3384 !MLX5_CAP_ETH(mdev, vlan_cap) ||
3385 !MLX5_CAP_ETH(mdev, rss_ind_tbl_cap) ||
3386 MLX5_CAP_FLOWTABLE(mdev,
3387 flow_table_properties_nic_receive.max_ft_level)
3388 < 3) {
3389 mlx5_core_warn(mdev,
3390 "Not creating net device, some required device capabilities are missing\n");
3391 return -EOPNOTSUPP;
3392 }
3393 if (!MLX5_CAP_ETH(mdev, self_lb_en_modifiable))
3394 mlx5_core_warn(mdev, "Self loop back prevention is not supported\n");
3395 if (!MLX5_CAP_GEN(mdev, cq_moderation))
3396 mlx5_core_warn(mdev, "CQ modiration is not supported\n");
3397
3398 return 0;
3399 }
3400
3401 u16 mlx5e_get_max_inline_cap(struct mlx5_core_dev *mdev)
3402 {
3403 int bf_buf_size = (1 << MLX5_CAP_GEN(mdev, log_bf_reg_size)) / 2;
3404
3405 return bf_buf_size -
3406 sizeof(struct mlx5e_tx_wqe) +
3407 2 /*sizeof(mlx5e_tx_wqe.inline_hdr_start)*/;
3408 }
3409
3410 void mlx5e_build_default_indir_rqt(struct mlx5_core_dev *mdev,
3411 u32 *indirection_rqt, int len,
3412 int num_channels)
3413 {
3414 int node = mdev->priv.numa_node;
3415 int node_num_of_cores;
3416 int i;
3417
3418 if (node == -1)
3419 node = first_online_node;
3420
3421 node_num_of_cores = cpumask_weight(cpumask_of_node(node));
3422
3423 if (node_num_of_cores)
3424 num_channels = min_t(int, num_channels, node_num_of_cores);
3425
3426 for (i = 0; i < len; i++)
3427 indirection_rqt[i] = i % num_channels;
3428 }
3429
3430 static int mlx5e_get_pci_bw(struct mlx5_core_dev *mdev, u32 *pci_bw)
3431 {
3432 enum pcie_link_width width;
3433 enum pci_bus_speed speed;
3434 int err = 0;
3435
3436 err = pcie_get_minimum_link(mdev->pdev, &speed, &width);
3437 if (err)
3438 return err;
3439
3440 if (speed == PCI_SPEED_UNKNOWN || width == PCIE_LNK_WIDTH_UNKNOWN)
3441 return -EINVAL;
3442
3443 switch (speed) {
3444 case PCIE_SPEED_2_5GT:
3445 *pci_bw = 2500 * width;
3446 break;
3447 case PCIE_SPEED_5_0GT:
3448 *pci_bw = 5000 * width;
3449 break;
3450 case PCIE_SPEED_8_0GT:
3451 *pci_bw = 8000 * width;
3452 break;
3453 default:
3454 return -EINVAL;
3455 }
3456
3457 return 0;
3458 }
3459
3460 static bool cqe_compress_heuristic(u32 link_speed, u32 pci_bw)
3461 {
3462 return (link_speed && pci_bw &&
3463 (pci_bw < 40000) && (pci_bw < link_speed));
3464 }
3465
3466 void mlx5e_set_rx_cq_mode_params(struct mlx5e_params *params, u8 cq_period_mode)
3467 {
3468 params->rx_cq_period_mode = cq_period_mode;
3469
3470 params->rx_cq_moderation.pkts =
3471 MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_PKTS;
3472 params->rx_cq_moderation.usec =
3473 MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_USEC;
3474
3475 if (cq_period_mode == MLX5_CQ_PERIOD_MODE_START_FROM_CQE)
3476 params->rx_cq_moderation.usec =
3477 MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_USEC_FROM_CQE;
3478 }
3479
3480 u32 mlx5e_choose_lro_timeout(struct mlx5_core_dev *mdev, u32 wanted_timeout)
3481 {
3482 int i;
3483
3484 /* The supported periods are organized in ascending order */
3485 for (i = 0; i < MLX5E_LRO_TIMEOUT_ARR_SIZE - 1; i++)
3486 if (MLX5_CAP_ETH(mdev, lro_timer_supported_periods[i]) >= wanted_timeout)
3487 break;
3488
3489 return MLX5_CAP_ETH(mdev, lro_timer_supported_periods[i]);
3490 }
3491
3492 static void mlx5e_build_nic_netdev_priv(struct mlx5_core_dev *mdev,
3493 struct net_device *netdev,
3494 const struct mlx5e_profile *profile,
3495 void *ppriv)
3496 {
3497 struct mlx5e_priv *priv = netdev_priv(netdev);
3498 u32 link_speed = 0;
3499 u32 pci_bw = 0;
3500 u8 cq_period_mode = MLX5_CAP_GEN(mdev, cq_period_start_from_cqe) ?
3501 MLX5_CQ_PERIOD_MODE_START_FROM_CQE :
3502 MLX5_CQ_PERIOD_MODE_START_FROM_EQE;
3503
3504 priv->mdev = mdev;
3505 priv->netdev = netdev;
3506 priv->params.num_channels = profile->max_nch(mdev);
3507 priv->profile = profile;
3508 priv->ppriv = ppriv;
3509
3510 priv->params.lro_timeout =
3511 mlx5e_choose_lro_timeout(mdev, MLX5E_DEFAULT_LRO_TIMEOUT);
3512
3513 priv->params.log_sq_size = is_kdump_kernel() ?
3514 MLX5E_PARAMS_MINIMUM_LOG_SQ_SIZE :
3515 MLX5E_PARAMS_DEFAULT_LOG_SQ_SIZE;
3516
3517 /* set CQE compression */
3518 priv->params.rx_cqe_compress_def = false;
3519 if (MLX5_CAP_GEN(mdev, cqe_compression) &&
3520 MLX5_CAP_GEN(mdev, vport_group_manager)) {
3521 mlx5e_get_max_linkspeed(mdev, &link_speed);
3522 mlx5e_get_pci_bw(mdev, &pci_bw);
3523 mlx5_core_dbg(mdev, "Max link speed = %d, PCI BW = %d\n",
3524 link_speed, pci_bw);
3525 priv->params.rx_cqe_compress_def =
3526 cqe_compress_heuristic(link_speed, pci_bw);
3527 }
3528
3529 MLX5E_SET_PFLAG(priv, MLX5E_PFLAG_RX_CQE_COMPRESS,
3530 priv->params.rx_cqe_compress_def);
3531
3532 mlx5e_set_rq_priv_params(priv);
3533 if (priv->params.rq_wq_type == MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ)
3534 priv->params.lro_en = true;
3535
3536 priv->params.rx_am_enabled = MLX5_CAP_GEN(mdev, cq_moderation);
3537 mlx5e_set_rx_cq_mode_params(&priv->params, cq_period_mode);
3538
3539 priv->params.tx_cq_moderation.usec =
3540 MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_USEC;
3541 priv->params.tx_cq_moderation.pkts =
3542 MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_PKTS;
3543 priv->params.tx_max_inline = mlx5e_get_max_inline_cap(mdev);
3544 mlx5_query_min_inline(mdev, &priv->params.tx_min_inline_mode);
3545 if (priv->params.tx_min_inline_mode == MLX5_INLINE_MODE_NONE &&
3546 !MLX5_CAP_ETH(mdev, wqe_vlan_insert))
3547 priv->params.tx_min_inline_mode = MLX5_INLINE_MODE_L2;
3548
3549 priv->params.num_tc = 1;
3550 priv->params.rss_hfunc = ETH_RSS_HASH_XOR;
3551
3552 netdev_rss_key_fill(priv->params.toeplitz_hash_key,
3553 sizeof(priv->params.toeplitz_hash_key));
3554
3555 mlx5e_build_default_indir_rqt(mdev, priv->params.indirection_rqt,
3556 MLX5E_INDIR_RQT_SIZE, profile->max_nch(mdev));
3557
3558 /* Initialize pflags */
3559 MLX5E_SET_PFLAG(priv, MLX5E_PFLAG_RX_CQE_BASED_MODER,
3560 priv->params.rx_cq_period_mode == MLX5_CQ_PERIOD_MODE_START_FROM_CQE);
3561
3562 mutex_init(&priv->state_lock);
3563
3564 INIT_WORK(&priv->update_carrier_work, mlx5e_update_carrier_work);
3565 INIT_WORK(&priv->set_rx_mode_work, mlx5e_set_rx_mode_work);
3566 INIT_WORK(&priv->tx_timeout_work, mlx5e_tx_timeout_work);
3567 INIT_DELAYED_WORK(&priv->update_stats_work, mlx5e_update_stats_work);
3568 }
3569
3570 static void mlx5e_set_netdev_dev_addr(struct net_device *netdev)
3571 {
3572 struct mlx5e_priv *priv = netdev_priv(netdev);
3573
3574 mlx5_query_nic_vport_mac_address(priv->mdev, 0, netdev->dev_addr);
3575 if (is_zero_ether_addr(netdev->dev_addr) &&
3576 !MLX5_CAP_GEN(priv->mdev, vport_group_manager)) {
3577 eth_hw_addr_random(netdev);
3578 mlx5_core_info(priv->mdev, "Assigned random MAC address %pM\n", netdev->dev_addr);
3579 }
3580 }
3581
3582 static const struct switchdev_ops mlx5e_switchdev_ops = {
3583 .switchdev_port_attr_get = mlx5e_attr_get,
3584 };
3585
3586 static void mlx5e_build_nic_netdev(struct net_device *netdev)
3587 {
3588 struct mlx5e_priv *priv = netdev_priv(netdev);
3589 struct mlx5_core_dev *mdev = priv->mdev;
3590 bool fcs_supported;
3591 bool fcs_enabled;
3592
3593 SET_NETDEV_DEV(netdev, &mdev->pdev->dev);
3594
3595 if (MLX5_CAP_GEN(mdev, vport_group_manager)) {
3596 netdev->netdev_ops = &mlx5e_netdev_ops_sriov;
3597 #ifdef CONFIG_MLX5_CORE_EN_DCB
3598 if (MLX5_CAP_GEN(mdev, qos))
3599 netdev->dcbnl_ops = &mlx5e_dcbnl_ops;
3600 #endif
3601 } else {
3602 netdev->netdev_ops = &mlx5e_netdev_ops_basic;
3603 }
3604
3605 netdev->watchdog_timeo = 15 * HZ;
3606
3607 netdev->ethtool_ops = &mlx5e_ethtool_ops;
3608
3609 netdev->vlan_features |= NETIF_F_SG;
3610 netdev->vlan_features |= NETIF_F_IP_CSUM;
3611 netdev->vlan_features |= NETIF_F_IPV6_CSUM;
3612 netdev->vlan_features |= NETIF_F_GRO;
3613 netdev->vlan_features |= NETIF_F_TSO;
3614 netdev->vlan_features |= NETIF_F_TSO6;
3615 netdev->vlan_features |= NETIF_F_RXCSUM;
3616 netdev->vlan_features |= NETIF_F_RXHASH;
3617
3618 if (!!MLX5_CAP_ETH(mdev, lro_cap))
3619 netdev->vlan_features |= NETIF_F_LRO;
3620
3621 netdev->hw_features = netdev->vlan_features;
3622 netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_TX;
3623 netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_RX;
3624 netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_FILTER;
3625
3626 if (mlx5e_vxlan_allowed(mdev)) {
3627 netdev->hw_features |= NETIF_F_GSO_UDP_TUNNEL |
3628 NETIF_F_GSO_UDP_TUNNEL_CSUM |
3629 NETIF_F_GSO_PARTIAL;
3630 netdev->hw_enc_features |= NETIF_F_IP_CSUM;
3631 netdev->hw_enc_features |= NETIF_F_IPV6_CSUM;
3632 netdev->hw_enc_features |= NETIF_F_TSO;
3633 netdev->hw_enc_features |= NETIF_F_TSO6;
3634 netdev->hw_enc_features |= NETIF_F_GSO_UDP_TUNNEL;
3635 netdev->hw_enc_features |= NETIF_F_GSO_UDP_TUNNEL_CSUM |
3636 NETIF_F_GSO_PARTIAL;
3637 netdev->gso_partial_features = NETIF_F_GSO_UDP_TUNNEL_CSUM;
3638 }
3639
3640 mlx5_query_port_fcs(mdev, &fcs_supported, &fcs_enabled);
3641
3642 if (fcs_supported)
3643 netdev->hw_features |= NETIF_F_RXALL;
3644
3645 netdev->features = netdev->hw_features;
3646 if (!priv->params.lro_en)
3647 netdev->features &= ~NETIF_F_LRO;
3648
3649 if (fcs_enabled)
3650 netdev->features &= ~NETIF_F_RXALL;
3651
3652 #define FT_CAP(f) MLX5_CAP_FLOWTABLE(mdev, flow_table_properties_nic_receive.f)
3653 if (FT_CAP(flow_modify_en) &&
3654 FT_CAP(modify_root) &&
3655 FT_CAP(identified_miss_table_mode) &&
3656 FT_CAP(flow_table_modify)) {
3657 netdev->hw_features |= NETIF_F_HW_TC;
3658 #ifdef CONFIG_RFS_ACCEL
3659 netdev->hw_features |= NETIF_F_NTUPLE;
3660 #endif
3661 }
3662
3663 netdev->features |= NETIF_F_HIGHDMA;
3664
3665 netdev->priv_flags |= IFF_UNICAST_FLT;
3666
3667 mlx5e_set_netdev_dev_addr(netdev);
3668
3669 #ifdef CONFIG_NET_SWITCHDEV
3670 if (MLX5_CAP_GEN(mdev, vport_group_manager))
3671 netdev->switchdev_ops = &mlx5e_switchdev_ops;
3672 #endif
3673 }
3674
3675 static void mlx5e_create_q_counter(struct mlx5e_priv *priv)
3676 {
3677 struct mlx5_core_dev *mdev = priv->mdev;
3678 int err;
3679
3680 err = mlx5_core_alloc_q_counter(mdev, &priv->q_counter);
3681 if (err) {
3682 mlx5_core_warn(mdev, "alloc queue counter failed, %d\n", err);
3683 priv->q_counter = 0;
3684 }
3685 }
3686
3687 static void mlx5e_destroy_q_counter(struct mlx5e_priv *priv)
3688 {
3689 if (!priv->q_counter)
3690 return;
3691
3692 mlx5_core_dealloc_q_counter(priv->mdev, priv->q_counter);
3693 }
3694
3695 static void mlx5e_nic_init(struct mlx5_core_dev *mdev,
3696 struct net_device *netdev,
3697 const struct mlx5e_profile *profile,
3698 void *ppriv)
3699 {
3700 struct mlx5e_priv *priv = netdev_priv(netdev);
3701
3702 mlx5e_build_nic_netdev_priv(mdev, netdev, profile, ppriv);
3703 mlx5e_build_nic_netdev(netdev);
3704 mlx5e_vxlan_init(priv);
3705 }
3706
3707 static void mlx5e_nic_cleanup(struct mlx5e_priv *priv)
3708 {
3709 mlx5e_vxlan_cleanup(priv);
3710
3711 if (priv->xdp_prog)
3712 bpf_prog_put(priv->xdp_prog);
3713 }
3714
3715 static int mlx5e_init_nic_rx(struct mlx5e_priv *priv)
3716 {
3717 struct mlx5_core_dev *mdev = priv->mdev;
3718 int err;
3719 int i;
3720
3721 err = mlx5e_create_indirect_rqts(priv);
3722 if (err) {
3723 mlx5_core_warn(mdev, "create indirect rqts failed, %d\n", err);
3724 return err;
3725 }
3726
3727 err = mlx5e_create_direct_rqts(priv);
3728 if (err) {
3729 mlx5_core_warn(mdev, "create direct rqts failed, %d\n", err);
3730 goto err_destroy_indirect_rqts;
3731 }
3732
3733 err = mlx5e_create_indirect_tirs(priv);
3734 if (err) {
3735 mlx5_core_warn(mdev, "create indirect tirs failed, %d\n", err);
3736 goto err_destroy_direct_rqts;
3737 }
3738
3739 err = mlx5e_create_direct_tirs(priv);
3740 if (err) {
3741 mlx5_core_warn(mdev, "create direct tirs failed, %d\n", err);
3742 goto err_destroy_indirect_tirs;
3743 }
3744
3745 err = mlx5e_create_flow_steering(priv);
3746 if (err) {
3747 mlx5_core_warn(mdev, "create flow steering failed, %d\n", err);
3748 goto err_destroy_direct_tirs;
3749 }
3750
3751 err = mlx5e_tc_init(priv);
3752 if (err)
3753 goto err_destroy_flow_steering;
3754
3755 return 0;
3756
3757 err_destroy_flow_steering:
3758 mlx5e_destroy_flow_steering(priv);
3759 err_destroy_direct_tirs:
3760 mlx5e_destroy_direct_tirs(priv);
3761 err_destroy_indirect_tirs:
3762 mlx5e_destroy_indirect_tirs(priv);
3763 err_destroy_direct_rqts:
3764 for (i = 0; i < priv->profile->max_nch(mdev); i++)
3765 mlx5e_destroy_rqt(priv, &priv->direct_tir[i].rqt);
3766 err_destroy_indirect_rqts:
3767 mlx5e_destroy_rqt(priv, &priv->indir_rqt);
3768 return err;
3769 }
3770
3771 static void mlx5e_cleanup_nic_rx(struct mlx5e_priv *priv)
3772 {
3773 int i;
3774
3775 mlx5e_tc_cleanup(priv);
3776 mlx5e_destroy_flow_steering(priv);
3777 mlx5e_destroy_direct_tirs(priv);
3778 mlx5e_destroy_indirect_tirs(priv);
3779 for (i = 0; i < priv->profile->max_nch(priv->mdev); i++)
3780 mlx5e_destroy_rqt(priv, &priv->direct_tir[i].rqt);
3781 mlx5e_destroy_rqt(priv, &priv->indir_rqt);
3782 }
3783
3784 static int mlx5e_init_nic_tx(struct mlx5e_priv *priv)
3785 {
3786 int err;
3787
3788 err = mlx5e_create_tises(priv);
3789 if (err) {
3790 mlx5_core_warn(priv->mdev, "create tises failed, %d\n", err);
3791 return err;
3792 }
3793
3794 #ifdef CONFIG_MLX5_CORE_EN_DCB
3795 mlx5e_dcbnl_initialize(priv);
3796 #endif
3797 return 0;
3798 }
3799
3800 static void mlx5e_nic_enable(struct mlx5e_priv *priv)
3801 {
3802 struct net_device *netdev = priv->netdev;
3803 struct mlx5_core_dev *mdev = priv->mdev;
3804 struct mlx5_eswitch *esw = mdev->priv.eswitch;
3805 struct mlx5_eswitch_rep rep;
3806
3807 mlx5_lag_add(mdev, netdev);
3808
3809 mlx5e_enable_async_events(priv);
3810
3811 if (MLX5_CAP_GEN(mdev, vport_group_manager)) {
3812 mlx5_query_nic_vport_mac_address(mdev, 0, rep.hw_id);
3813 rep.load = mlx5e_nic_rep_load;
3814 rep.unload = mlx5e_nic_rep_unload;
3815 rep.vport = FDB_UPLINK_VPORT;
3816 rep.netdev = netdev;
3817 mlx5_eswitch_register_vport_rep(esw, 0, &rep);
3818 }
3819
3820 if (netdev->reg_state != NETREG_REGISTERED)
3821 return;
3822
3823 /* Device already registered: sync netdev system state */
3824 if (mlx5e_vxlan_allowed(mdev)) {
3825 rtnl_lock();
3826 udp_tunnel_get_rx_info(netdev);
3827 rtnl_unlock();
3828 }
3829
3830 queue_work(priv->wq, &priv->set_rx_mode_work);
3831 }
3832
3833 static void mlx5e_nic_disable(struct mlx5e_priv *priv)
3834 {
3835 struct mlx5_core_dev *mdev = priv->mdev;
3836 struct mlx5_eswitch *esw = mdev->priv.eswitch;
3837
3838 queue_work(priv->wq, &priv->set_rx_mode_work);
3839 if (MLX5_CAP_GEN(mdev, vport_group_manager))
3840 mlx5_eswitch_unregister_vport_rep(esw, 0);
3841 mlx5e_disable_async_events(priv);
3842 mlx5_lag_remove(mdev);
3843 }
3844
3845 static const struct mlx5e_profile mlx5e_nic_profile = {
3846 .init = mlx5e_nic_init,
3847 .cleanup = mlx5e_nic_cleanup,
3848 .init_rx = mlx5e_init_nic_rx,
3849 .cleanup_rx = mlx5e_cleanup_nic_rx,
3850 .init_tx = mlx5e_init_nic_tx,
3851 .cleanup_tx = mlx5e_cleanup_nic_tx,
3852 .enable = mlx5e_nic_enable,
3853 .disable = mlx5e_nic_disable,
3854 .update_stats = mlx5e_update_stats,
3855 .max_nch = mlx5e_get_max_num_channels,
3856 .max_tc = MLX5E_MAX_NUM_TC,
3857 };
3858
3859 struct net_device *mlx5e_create_netdev(struct mlx5_core_dev *mdev,
3860 const struct mlx5e_profile *profile,
3861 void *ppriv)
3862 {
3863 int nch = profile->max_nch(mdev);
3864 struct net_device *netdev;
3865 struct mlx5e_priv *priv;
3866
3867 netdev = alloc_etherdev_mqs(sizeof(struct mlx5e_priv),
3868 nch * profile->max_tc,
3869 nch);
3870 if (!netdev) {
3871 mlx5_core_err(mdev, "alloc_etherdev_mqs() failed\n");
3872 return NULL;
3873 }
3874
3875 profile->init(mdev, netdev, profile, ppriv);
3876
3877 netif_carrier_off(netdev);
3878
3879 priv = netdev_priv(netdev);
3880
3881 priv->wq = create_singlethread_workqueue("mlx5e");
3882 if (!priv->wq)
3883 goto err_cleanup_nic;
3884
3885 return netdev;
3886
3887 err_cleanup_nic:
3888 profile->cleanup(priv);
3889 free_netdev(netdev);
3890
3891 return NULL;
3892 }
3893
3894 int mlx5e_attach_netdev(struct mlx5_core_dev *mdev, struct net_device *netdev)
3895 {
3896 const struct mlx5e_profile *profile;
3897 struct mlx5e_priv *priv;
3898 u16 max_mtu;
3899 int err;
3900
3901 priv = netdev_priv(netdev);
3902 profile = priv->profile;
3903 clear_bit(MLX5E_STATE_DESTROYING, &priv->state);
3904
3905 err = profile->init_tx(priv);
3906 if (err)
3907 goto out;
3908
3909 err = mlx5e_open_drop_rq(priv);
3910 if (err) {
3911 mlx5_core_err(mdev, "open drop rq failed, %d\n", err);
3912 goto err_cleanup_tx;
3913 }
3914
3915 err = profile->init_rx(priv);
3916 if (err)
3917 goto err_close_drop_rq;
3918
3919 mlx5e_create_q_counter(priv);
3920
3921 mlx5e_init_l2_addr(priv);
3922
3923 /* MTU range: 68 - hw-specific max */
3924 netdev->min_mtu = ETH_MIN_MTU;
3925 mlx5_query_port_max_mtu(priv->mdev, &max_mtu, 1);
3926 netdev->max_mtu = MLX5E_HW2SW_MTU(max_mtu);
3927
3928 mlx5e_set_dev_port_mtu(netdev);
3929
3930 if (profile->enable)
3931 profile->enable(priv);
3932
3933 rtnl_lock();
3934 if (netif_running(netdev))
3935 mlx5e_open(netdev);
3936 netif_device_attach(netdev);
3937 rtnl_unlock();
3938
3939 return 0;
3940
3941 err_close_drop_rq:
3942 mlx5e_close_drop_rq(priv);
3943
3944 err_cleanup_tx:
3945 profile->cleanup_tx(priv);
3946
3947 out:
3948 return err;
3949 }
3950
3951 static void mlx5e_register_vport_rep(struct mlx5_core_dev *mdev)
3952 {
3953 struct mlx5_eswitch *esw = mdev->priv.eswitch;
3954 int total_vfs = MLX5_TOTAL_VPORTS(mdev);
3955 int vport;
3956 u8 mac[ETH_ALEN];
3957
3958 if (!MLX5_CAP_GEN(mdev, vport_group_manager))
3959 return;
3960
3961 mlx5_query_nic_vport_mac_address(mdev, 0, mac);
3962
3963 for (vport = 1; vport < total_vfs; vport++) {
3964 struct mlx5_eswitch_rep rep;
3965
3966 rep.load = mlx5e_vport_rep_load;
3967 rep.unload = mlx5e_vport_rep_unload;
3968 rep.vport = vport;
3969 ether_addr_copy(rep.hw_id, mac);
3970 mlx5_eswitch_register_vport_rep(esw, vport, &rep);
3971 }
3972 }
3973
3974 static void mlx5e_unregister_vport_rep(struct mlx5_core_dev *mdev)
3975 {
3976 struct mlx5_eswitch *esw = mdev->priv.eswitch;
3977 int total_vfs = MLX5_TOTAL_VPORTS(mdev);
3978 int vport;
3979
3980 if (!MLX5_CAP_GEN(mdev, vport_group_manager))
3981 return;
3982
3983 for (vport = 1; vport < total_vfs; vport++)
3984 mlx5_eswitch_unregister_vport_rep(esw, vport);
3985 }
3986
3987 void mlx5e_detach_netdev(struct mlx5_core_dev *mdev, struct net_device *netdev)
3988 {
3989 struct mlx5e_priv *priv = netdev_priv(netdev);
3990 const struct mlx5e_profile *profile = priv->profile;
3991
3992 set_bit(MLX5E_STATE_DESTROYING, &priv->state);
3993
3994 rtnl_lock();
3995 if (netif_running(netdev))
3996 mlx5e_close(netdev);
3997 netif_device_detach(netdev);
3998 rtnl_unlock();
3999
4000 if (profile->disable)
4001 profile->disable(priv);
4002 flush_workqueue(priv->wq);
4003
4004 mlx5e_destroy_q_counter(priv);
4005 profile->cleanup_rx(priv);
4006 mlx5e_close_drop_rq(priv);
4007 profile->cleanup_tx(priv);
4008 cancel_delayed_work_sync(&priv->update_stats_work);
4009 }
4010
4011 /* mlx5e_attach and mlx5e_detach scope should be only creating/destroying
4012 * hardware contexts and to connect it to the current netdev.
4013 */
4014 static int mlx5e_attach(struct mlx5_core_dev *mdev, void *vpriv)
4015 {
4016 struct mlx5e_priv *priv = vpriv;
4017 struct net_device *netdev = priv->netdev;
4018 int err;
4019
4020 if (netif_device_present(netdev))
4021 return 0;
4022
4023 err = mlx5e_create_mdev_resources(mdev);
4024 if (err)
4025 return err;
4026
4027 err = mlx5e_attach_netdev(mdev, netdev);
4028 if (err) {
4029 mlx5e_destroy_mdev_resources(mdev);
4030 return err;
4031 }
4032
4033 mlx5e_register_vport_rep(mdev);
4034 return 0;
4035 }
4036
4037 static void mlx5e_detach(struct mlx5_core_dev *mdev, void *vpriv)
4038 {
4039 struct mlx5e_priv *priv = vpriv;
4040 struct net_device *netdev = priv->netdev;
4041
4042 if (!netif_device_present(netdev))
4043 return;
4044
4045 mlx5e_unregister_vport_rep(mdev);
4046 mlx5e_detach_netdev(mdev, netdev);
4047 mlx5e_destroy_mdev_resources(mdev);
4048 }
4049
4050 static void *mlx5e_add(struct mlx5_core_dev *mdev)
4051 {
4052 struct mlx5_eswitch *esw = mdev->priv.eswitch;
4053 int total_vfs = MLX5_TOTAL_VPORTS(mdev);
4054 void *ppriv = NULL;
4055 void *priv;
4056 int vport;
4057 int err;
4058 struct net_device *netdev;
4059
4060 err = mlx5e_check_required_hca_cap(mdev);
4061 if (err)
4062 return NULL;
4063
4064 if (MLX5_CAP_GEN(mdev, vport_group_manager))
4065 ppriv = &esw->offloads.vport_reps[0];
4066
4067 netdev = mlx5e_create_netdev(mdev, &mlx5e_nic_profile, ppriv);
4068 if (!netdev) {
4069 mlx5_core_err(mdev, "mlx5e_create_netdev failed\n");
4070 goto err_unregister_reps;
4071 }
4072
4073 priv = netdev_priv(netdev);
4074
4075 err = mlx5e_attach(mdev, priv);
4076 if (err) {
4077 mlx5_core_err(mdev, "mlx5e_attach failed, %d\n", err);
4078 goto err_destroy_netdev;
4079 }
4080
4081 err = register_netdev(netdev);
4082 if (err) {
4083 mlx5_core_err(mdev, "register_netdev failed, %d\n", err);
4084 goto err_detach;
4085 }
4086
4087 return priv;
4088
4089 err_detach:
4090 mlx5e_detach(mdev, priv);
4091
4092 err_destroy_netdev:
4093 mlx5e_destroy_netdev(mdev, priv);
4094
4095 err_unregister_reps:
4096 for (vport = 1; vport < total_vfs; vport++)
4097 mlx5_eswitch_unregister_vport_rep(esw, vport);
4098
4099 return NULL;
4100 }
4101
4102 void mlx5e_destroy_netdev(struct mlx5_core_dev *mdev, struct mlx5e_priv *priv)
4103 {
4104 const struct mlx5e_profile *profile = priv->profile;
4105 struct net_device *netdev = priv->netdev;
4106
4107 destroy_workqueue(priv->wq);
4108 if (profile->cleanup)
4109 profile->cleanup(priv);
4110 free_netdev(netdev);
4111 }
4112
4113 static void mlx5e_remove(struct mlx5_core_dev *mdev, void *vpriv)
4114 {
4115 struct mlx5e_priv *priv = vpriv;
4116
4117 unregister_netdev(priv->netdev);
4118 mlx5e_detach(mdev, vpriv);
4119 mlx5e_destroy_netdev(mdev, priv);
4120 }
4121
4122 static void *mlx5e_get_netdev(void *vpriv)
4123 {
4124 struct mlx5e_priv *priv = vpriv;
4125
4126 return priv->netdev;
4127 }
4128
4129 static struct mlx5_interface mlx5e_interface = {
4130 .add = mlx5e_add,
4131 .remove = mlx5e_remove,
4132 .attach = mlx5e_attach,
4133 .detach = mlx5e_detach,
4134 .event = mlx5e_async_event,
4135 .protocol = MLX5_INTERFACE_PROTOCOL_ETH,
4136 .get_dev = mlx5e_get_netdev,
4137 };
4138
4139 void mlx5e_init(void)
4140 {
4141 mlx5e_build_ptys2ethtool_map();
4142 mlx5_register_interface(&mlx5e_interface);
4143 }
4144
4145 void mlx5e_cleanup(void)
4146 {
4147 mlx5_unregister_interface(&mlx5e_interface);
4148 }
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