2 * Copyright (c) 2015-2016, Mellanox Technologies. All rights reserved.
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:
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
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.
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
33 #include <net/tc_act/tc_gact.h>
34 #include <net/pkt_cls.h>
35 #include <linux/mlx5/fs.h>
36 #include <net/vxlan.h>
37 #include <net/geneve.h>
38 #include <linux/bpf.h>
39 #include <linux/if_bridge.h>
40 #include <net/page_pool.h>
45 #include "en_accel/ipsec.h"
46 #include "en_accel/ipsec_rxtx.h"
47 #include "en_accel/en_accel.h"
48 #include "en_accel/tls.h"
49 #include "accel/ipsec.h"
50 #include "accel/tls.h"
51 #include "lib/vxlan.h"
52 #include "lib/clock.h"
56 #include "en/monitor_stats.h"
57 #include "en/reporter.h"
58 #include "en/params.h"
60 struct mlx5e_rq_param {
61 u32 rqc[MLX5_ST_SZ_DW(rqc)];
62 struct mlx5_wq_param wq;
63 struct mlx5e_rq_frags_info frags_info;
66 struct mlx5e_sq_param {
67 u32 sqc[MLX5_ST_SZ_DW(sqc)];
68 struct mlx5_wq_param wq;
72 struct mlx5e_cq_param {
73 u32 cqc[MLX5_ST_SZ_DW(cqc)];
74 struct mlx5_wq_param wq;
79 struct mlx5e_channel_param {
80 struct mlx5e_rq_param rq;
81 struct mlx5e_sq_param sq;
82 struct mlx5e_sq_param xdp_sq;
83 struct mlx5e_sq_param icosq;
84 struct mlx5e_cq_param rx_cq;
85 struct mlx5e_cq_param tx_cq;
86 struct mlx5e_cq_param icosq_cq;
89 bool mlx5e_check_fragmented_striding_rq_cap(struct mlx5_core_dev *mdev)
91 bool striding_rq_umr = MLX5_CAP_GEN(mdev, striding_rq) &&
92 MLX5_CAP_GEN(mdev, umr_ptr_rlky) &&
93 MLX5_CAP_ETH(mdev, reg_umr_sq);
94 u16 max_wqe_sz_cap = MLX5_CAP_GEN(mdev, max_wqe_sz_sq);
95 bool inline_umr = MLX5E_UMR_WQE_INLINE_SZ <= max_wqe_sz_cap;
100 mlx5_core_warn(mdev, "Cannot support Striding RQ: UMR WQE size (%d) exceeds maximum supported (%d).\n",
101 (int)MLX5E_UMR_WQE_INLINE_SZ, max_wqe_sz_cap);
107 void mlx5e_init_rq_type_params(struct mlx5_core_dev *mdev,
108 struct mlx5e_params *params)
110 params->log_rq_mtu_frames = is_kdump_kernel() ?
111 MLX5E_PARAMS_MINIMUM_LOG_RQ_SIZE :
112 MLX5E_PARAMS_DEFAULT_LOG_RQ_SIZE;
114 mlx5_core_info(mdev, "MLX5E: StrdRq(%d) RqSz(%ld) StrdSz(%ld) RxCqeCmprss(%d)\n",
115 params->rq_wq_type == MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ,
116 params->rq_wq_type == MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ ?
117 BIT(mlx5e_mpwqe_get_log_rq_size(params)) :
118 BIT(params->log_rq_mtu_frames),
119 BIT(mlx5e_mpwqe_get_log_stride_size(mdev, params)),
120 MLX5E_GET_PFLAG(params, MLX5E_PFLAG_RX_CQE_COMPRESS));
123 bool mlx5e_striding_rq_possible(struct mlx5_core_dev *mdev,
124 struct mlx5e_params *params)
126 return mlx5e_check_fragmented_striding_rq_cap(mdev) &&
127 !MLX5_IPSEC_DEV(mdev) &&
128 !(params->xdp_prog && !mlx5e_rx_mpwqe_is_linear_skb(mdev, params));
131 void mlx5e_set_rq_type(struct mlx5_core_dev *mdev, struct mlx5e_params *params)
133 params->rq_wq_type = mlx5e_striding_rq_possible(mdev, params) &&
134 MLX5E_GET_PFLAG(params, MLX5E_PFLAG_RX_STRIDING_RQ) ?
135 MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ :
139 void mlx5e_update_carrier(struct mlx5e_priv *priv)
141 struct mlx5_core_dev *mdev = priv->mdev;
144 port_state = mlx5_query_vport_state(mdev,
145 MLX5_VPORT_STATE_OP_MOD_VNIC_VPORT,
148 if (port_state == VPORT_STATE_UP) {
149 netdev_info(priv->netdev, "Link up\n");
150 netif_carrier_on(priv->netdev);
152 netdev_info(priv->netdev, "Link down\n");
153 netif_carrier_off(priv->netdev);
157 static void mlx5e_update_carrier_work(struct work_struct *work)
159 struct mlx5e_priv *priv = container_of(work, struct mlx5e_priv,
160 update_carrier_work);
162 mutex_lock(&priv->state_lock);
163 if (test_bit(MLX5E_STATE_OPENED, &priv->state))
164 if (priv->profile->update_carrier)
165 priv->profile->update_carrier(priv);
166 mutex_unlock(&priv->state_lock);
169 void mlx5e_update_stats(struct mlx5e_priv *priv)
173 for (i = mlx5e_num_stats_grps - 1; i >= 0; i--)
174 if (mlx5e_stats_grps[i].update_stats)
175 mlx5e_stats_grps[i].update_stats(priv);
178 void mlx5e_update_ndo_stats(struct mlx5e_priv *priv)
182 for (i = mlx5e_num_stats_grps - 1; i >= 0; i--)
183 if (mlx5e_stats_grps[i].update_stats_mask &
184 MLX5E_NDO_UPDATE_STATS)
185 mlx5e_stats_grps[i].update_stats(priv);
188 static void mlx5e_update_stats_work(struct work_struct *work)
190 struct mlx5e_priv *priv = container_of(work, struct mlx5e_priv,
193 mutex_lock(&priv->state_lock);
194 priv->profile->update_stats(priv);
195 mutex_unlock(&priv->state_lock);
198 void mlx5e_queue_update_stats(struct mlx5e_priv *priv)
200 if (!priv->profile->update_stats)
203 if (unlikely(test_bit(MLX5E_STATE_DESTROYING, &priv->state)))
206 queue_work(priv->wq, &priv->update_stats_work);
209 static int async_event(struct notifier_block *nb, unsigned long event, void *data)
211 struct mlx5e_priv *priv = container_of(nb, struct mlx5e_priv, events_nb);
212 struct mlx5_eqe *eqe = data;
214 if (event != MLX5_EVENT_TYPE_PORT_CHANGE)
217 switch (eqe->sub_type) {
218 case MLX5_PORT_CHANGE_SUBTYPE_DOWN:
219 case MLX5_PORT_CHANGE_SUBTYPE_ACTIVE:
220 queue_work(priv->wq, &priv->update_carrier_work);
229 static void mlx5e_enable_async_events(struct mlx5e_priv *priv)
231 priv->events_nb.notifier_call = async_event;
232 mlx5_notifier_register(priv->mdev, &priv->events_nb);
235 static void mlx5e_disable_async_events(struct mlx5e_priv *priv)
237 mlx5_notifier_unregister(priv->mdev, &priv->events_nb);
240 static inline void mlx5e_build_umr_wqe(struct mlx5e_rq *rq,
241 struct mlx5e_icosq *sq,
242 struct mlx5e_umr_wqe *wqe)
244 struct mlx5_wqe_ctrl_seg *cseg = &wqe->ctrl;
245 struct mlx5_wqe_umr_ctrl_seg *ucseg = &wqe->uctrl;
246 u8 ds_cnt = DIV_ROUND_UP(MLX5E_UMR_WQE_INLINE_SZ, MLX5_SEND_WQE_DS);
248 cseg->qpn_ds = cpu_to_be32((sq->sqn << MLX5_WQE_CTRL_QPN_SHIFT) |
250 cseg->fm_ce_se = MLX5_WQE_CTRL_CQ_UPDATE;
251 cseg->imm = rq->mkey_be;
253 ucseg->flags = MLX5_UMR_TRANSLATION_OFFSET_EN | MLX5_UMR_INLINE;
254 ucseg->xlt_octowords =
255 cpu_to_be16(MLX5_MTT_OCTW(MLX5_MPWRQ_PAGES_PER_WQE));
256 ucseg->mkey_mask = cpu_to_be64(MLX5_MKEY_MASK_FREE);
259 static u32 mlx5e_rqwq_get_size(struct mlx5e_rq *rq)
261 switch (rq->wq_type) {
262 case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ:
263 return mlx5_wq_ll_get_size(&rq->mpwqe.wq);
265 return mlx5_wq_cyc_get_size(&rq->wqe.wq);
269 static u32 mlx5e_rqwq_get_cur_sz(struct mlx5e_rq *rq)
271 switch (rq->wq_type) {
272 case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ:
273 return rq->mpwqe.wq.cur_sz;
275 return rq->wqe.wq.cur_sz;
279 static int mlx5e_rq_alloc_mpwqe_info(struct mlx5e_rq *rq,
280 struct mlx5e_channel *c)
282 int wq_sz = mlx5_wq_ll_get_size(&rq->mpwqe.wq);
284 rq->mpwqe.info = kvzalloc_node(array_size(wq_sz,
285 sizeof(*rq->mpwqe.info)),
286 GFP_KERNEL, cpu_to_node(c->cpu));
290 mlx5e_build_umr_wqe(rq, &c->icosq, &rq->mpwqe.umr_wqe);
295 static int mlx5e_create_umr_mkey(struct mlx5_core_dev *mdev,
296 u64 npages, u8 page_shift,
297 struct mlx5_core_mkey *umr_mkey)
299 int inlen = MLX5_ST_SZ_BYTES(create_mkey_in);
304 in = kvzalloc(inlen, GFP_KERNEL);
308 mkc = MLX5_ADDR_OF(create_mkey_in, in, memory_key_mkey_entry);
310 MLX5_SET(mkc, mkc, free, 1);
311 MLX5_SET(mkc, mkc, umr_en, 1);
312 MLX5_SET(mkc, mkc, lw, 1);
313 MLX5_SET(mkc, mkc, lr, 1);
314 MLX5_SET(mkc, mkc, access_mode_1_0, MLX5_MKC_ACCESS_MODE_MTT);
316 MLX5_SET(mkc, mkc, qpn, 0xffffff);
317 MLX5_SET(mkc, mkc, pd, mdev->mlx5e_res.pdn);
318 MLX5_SET64(mkc, mkc, len, npages << page_shift);
319 MLX5_SET(mkc, mkc, translations_octword_size,
320 MLX5_MTT_OCTW(npages));
321 MLX5_SET(mkc, mkc, log_page_size, page_shift);
323 err = mlx5_core_create_mkey(mdev, umr_mkey, in, inlen);
329 static int mlx5e_create_rq_umr_mkey(struct mlx5_core_dev *mdev, struct mlx5e_rq *rq)
331 u64 num_mtts = MLX5E_REQUIRED_MTTS(mlx5_wq_ll_get_size(&rq->mpwqe.wq));
333 return mlx5e_create_umr_mkey(mdev, num_mtts, PAGE_SHIFT, &rq->umr_mkey);
336 static inline u64 mlx5e_get_mpwqe_offset(struct mlx5e_rq *rq, u16 wqe_ix)
338 return (wqe_ix << MLX5E_LOG_ALIGNED_MPWQE_PPW) << PAGE_SHIFT;
341 static void mlx5e_init_frags_partition(struct mlx5e_rq *rq)
343 struct mlx5e_wqe_frag_info next_frag, *prev;
346 next_frag.di = &rq->wqe.di[0];
347 next_frag.offset = 0;
350 for (i = 0; i < mlx5_wq_cyc_get_size(&rq->wqe.wq); i++) {
351 struct mlx5e_rq_frag_info *frag_info = &rq->wqe.info.arr[0];
352 struct mlx5e_wqe_frag_info *frag =
353 &rq->wqe.frags[i << rq->wqe.info.log_num_frags];
356 for (f = 0; f < rq->wqe.info.num_frags; f++, frag++) {
357 if (next_frag.offset + frag_info[f].frag_stride > PAGE_SIZE) {
359 next_frag.offset = 0;
361 prev->last_in_page = true;
366 next_frag.offset += frag_info[f].frag_stride;
372 prev->last_in_page = true;
375 static int mlx5e_init_di_list(struct mlx5e_rq *rq,
378 int len = wq_sz << rq->wqe.info.log_num_frags;
380 rq->wqe.di = kvzalloc_node(array_size(len, sizeof(*rq->wqe.di)),
381 GFP_KERNEL, cpu_to_node(cpu));
385 mlx5e_init_frags_partition(rq);
390 static void mlx5e_free_di_list(struct mlx5e_rq *rq)
395 static int mlx5e_alloc_rq(struct mlx5e_channel *c,
396 struct mlx5e_params *params,
397 struct mlx5e_rq_param *rqp,
400 struct page_pool_params pp_params = { 0 };
401 struct mlx5_core_dev *mdev = c->mdev;
402 void *rqc = rqp->rqc;
403 void *rqc_wq = MLX5_ADDR_OF(rqc, rqc, wq);
409 rqp->wq.db_numa_node = cpu_to_node(c->cpu);
411 rq->wq_type = params->rq_wq_type;
413 rq->netdev = c->netdev;
414 rq->tstamp = c->tstamp;
415 rq->clock = &mdev->clock;
419 rq->hw_mtu = MLX5E_SW2HW_MTU(params, params->sw_mtu);
420 rq->stats = &c->priv->channel_stats[c->ix].rq;
422 rq->xdp_prog = params->xdp_prog ? bpf_prog_inc(params->xdp_prog) : NULL;
423 if (IS_ERR(rq->xdp_prog)) {
424 err = PTR_ERR(rq->xdp_prog);
426 goto err_rq_wq_destroy;
429 err = xdp_rxq_info_reg(&rq->xdp_rxq, rq->netdev, rq->ix);
431 goto err_rq_wq_destroy;
433 rq->buff.map_dir = rq->xdp_prog ? DMA_BIDIRECTIONAL : DMA_FROM_DEVICE;
434 rq->buff.headroom = mlx5e_get_rq_headroom(mdev, params);
435 pool_size = 1 << params->log_rq_mtu_frames;
437 switch (rq->wq_type) {
438 case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ:
439 err = mlx5_wq_ll_create(mdev, &rqp->wq, rqc_wq, &rq->mpwqe.wq,
444 rq->mpwqe.wq.db = &rq->mpwqe.wq.db[MLX5_RCV_DBR];
446 wq_sz = mlx5_wq_ll_get_size(&rq->mpwqe.wq);
448 pool_size = MLX5_MPWRQ_PAGES_PER_WQE << mlx5e_mpwqe_get_log_rq_size(params);
450 rq->post_wqes = mlx5e_post_rx_mpwqes;
451 rq->dealloc_wqe = mlx5e_dealloc_rx_mpwqe;
453 rq->handle_rx_cqe = c->priv->profile->rx_handlers.handle_rx_cqe_mpwqe;
454 #ifdef CONFIG_MLX5_EN_IPSEC
455 if (MLX5_IPSEC_DEV(mdev)) {
457 netdev_err(c->netdev, "MPWQE RQ with IPSec offload not supported\n");
458 goto err_rq_wq_destroy;
461 if (!rq->handle_rx_cqe) {
463 netdev_err(c->netdev, "RX handler of MPWQE RQ is not set, err %d\n", err);
464 goto err_rq_wq_destroy;
467 rq->mpwqe.skb_from_cqe_mpwrq =
468 mlx5e_rx_mpwqe_is_linear_skb(mdev, params) ?
469 mlx5e_skb_from_cqe_mpwrq_linear :
470 mlx5e_skb_from_cqe_mpwrq_nonlinear;
471 rq->mpwqe.log_stride_sz = mlx5e_mpwqe_get_log_stride_size(mdev, params);
472 rq->mpwqe.num_strides = BIT(mlx5e_mpwqe_get_log_num_strides(mdev, params));
474 err = mlx5e_create_rq_umr_mkey(mdev, rq);
476 goto err_rq_wq_destroy;
477 rq->mkey_be = cpu_to_be32(rq->umr_mkey.key);
479 err = mlx5e_rq_alloc_mpwqe_info(rq, c);
483 default: /* MLX5_WQ_TYPE_CYCLIC */
484 err = mlx5_wq_cyc_create(mdev, &rqp->wq, rqc_wq, &rq->wqe.wq,
489 rq->wqe.wq.db = &rq->wqe.wq.db[MLX5_RCV_DBR];
491 wq_sz = mlx5_wq_cyc_get_size(&rq->wqe.wq);
493 rq->wqe.info = rqp->frags_info;
495 kvzalloc_node(array_size(sizeof(*rq->wqe.frags),
496 (wq_sz << rq->wqe.info.log_num_frags)),
497 GFP_KERNEL, cpu_to_node(c->cpu));
498 if (!rq->wqe.frags) {
503 err = mlx5e_init_di_list(rq, wq_sz, c->cpu);
506 rq->post_wqes = mlx5e_post_rx_wqes;
507 rq->dealloc_wqe = mlx5e_dealloc_rx_wqe;
509 #ifdef CONFIG_MLX5_EN_IPSEC
511 rq->handle_rx_cqe = mlx5e_ipsec_handle_rx_cqe;
514 rq->handle_rx_cqe = c->priv->profile->rx_handlers.handle_rx_cqe;
515 if (!rq->handle_rx_cqe) {
517 netdev_err(c->netdev, "RX handler of RQ is not set, err %d\n", err);
521 rq->wqe.skb_from_cqe = mlx5e_rx_is_linear_skb(params) ?
522 mlx5e_skb_from_cqe_linear :
523 mlx5e_skb_from_cqe_nonlinear;
524 rq->mkey_be = c->mkey_be;
527 /* Create a page_pool and register it with rxq */
529 pp_params.flags = 0; /* No-internal DMA mapping in page_pool */
530 pp_params.pool_size = pool_size;
531 pp_params.nid = cpu_to_node(c->cpu);
532 pp_params.dev = c->pdev;
533 pp_params.dma_dir = rq->buff.map_dir;
535 /* page_pool can be used even when there is no rq->xdp_prog,
536 * given page_pool does not handle DMA mapping there is no
537 * required state to clear. And page_pool gracefully handle
540 rq->page_pool = page_pool_create(&pp_params);
541 if (IS_ERR(rq->page_pool)) {
542 err = PTR_ERR(rq->page_pool);
543 rq->page_pool = NULL;
546 err = xdp_rxq_info_reg_mem_model(&rq->xdp_rxq,
547 MEM_TYPE_PAGE_POOL, rq->page_pool);
551 for (i = 0; i < wq_sz; i++) {
552 if (rq->wq_type == MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ) {
553 struct mlx5e_rx_wqe_ll *wqe =
554 mlx5_wq_ll_get_wqe(&rq->mpwqe.wq, i);
556 rq->mpwqe.num_strides << rq->mpwqe.log_stride_sz;
557 u64 dma_offset = mlx5e_get_mpwqe_offset(rq, i);
559 wqe->data[0].addr = cpu_to_be64(dma_offset + rq->buff.headroom);
560 wqe->data[0].byte_count = cpu_to_be32(byte_count);
561 wqe->data[0].lkey = rq->mkey_be;
563 struct mlx5e_rx_wqe_cyc *wqe =
564 mlx5_wq_cyc_get_wqe(&rq->wqe.wq, i);
567 for (f = 0; f < rq->wqe.info.num_frags; f++) {
568 u32 frag_size = rq->wqe.info.arr[f].frag_size |
569 MLX5_HW_START_PADDING;
571 wqe->data[f].byte_count = cpu_to_be32(frag_size);
572 wqe->data[f].lkey = rq->mkey_be;
574 /* check if num_frags is not a pow of two */
575 if (rq->wqe.info.num_frags < (1 << rq->wqe.info.log_num_frags)) {
576 wqe->data[f].byte_count = 0;
577 wqe->data[f].lkey = cpu_to_be32(MLX5_INVALID_LKEY);
578 wqe->data[f].addr = 0;
583 INIT_WORK(&rq->dim.work, mlx5e_rx_dim_work);
585 switch (params->rx_cq_moderation.cq_period_mode) {
586 case MLX5_CQ_PERIOD_MODE_START_FROM_CQE:
587 rq->dim.mode = NET_DIM_CQ_PERIOD_MODE_START_FROM_CQE;
589 case MLX5_CQ_PERIOD_MODE_START_FROM_EQE:
591 rq->dim.mode = NET_DIM_CQ_PERIOD_MODE_START_FROM_EQE;
594 rq->page_cache.head = 0;
595 rq->page_cache.tail = 0;
600 switch (rq->wq_type) {
601 case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ:
602 kvfree(rq->mpwqe.info);
603 mlx5_core_destroy_mkey(mdev, &rq->umr_mkey);
605 default: /* MLX5_WQ_TYPE_CYCLIC */
606 kvfree(rq->wqe.frags);
607 mlx5e_free_di_list(rq);
612 bpf_prog_put(rq->xdp_prog);
613 xdp_rxq_info_unreg(&rq->xdp_rxq);
615 page_pool_destroy(rq->page_pool);
616 mlx5_wq_destroy(&rq->wq_ctrl);
621 static void mlx5e_free_rq(struct mlx5e_rq *rq)
626 bpf_prog_put(rq->xdp_prog);
628 xdp_rxq_info_unreg(&rq->xdp_rxq);
630 page_pool_destroy(rq->page_pool);
632 switch (rq->wq_type) {
633 case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ:
634 kvfree(rq->mpwqe.info);
635 mlx5_core_destroy_mkey(rq->mdev, &rq->umr_mkey);
637 default: /* MLX5_WQ_TYPE_CYCLIC */
638 kvfree(rq->wqe.frags);
639 mlx5e_free_di_list(rq);
642 for (i = rq->page_cache.head; i != rq->page_cache.tail;
643 i = (i + 1) & (MLX5E_CACHE_SIZE - 1)) {
644 struct mlx5e_dma_info *dma_info = &rq->page_cache.page_cache[i];
646 mlx5e_page_release(rq, dma_info, false);
648 mlx5_wq_destroy(&rq->wq_ctrl);
651 static int mlx5e_create_rq(struct mlx5e_rq *rq,
652 struct mlx5e_rq_param *param)
654 struct mlx5_core_dev *mdev = rq->mdev;
662 inlen = MLX5_ST_SZ_BYTES(create_rq_in) +
663 sizeof(u64) * rq->wq_ctrl.buf.npages;
664 in = kvzalloc(inlen, GFP_KERNEL);
668 rqc = MLX5_ADDR_OF(create_rq_in, in, ctx);
669 wq = MLX5_ADDR_OF(rqc, rqc, wq);
671 memcpy(rqc, param->rqc, sizeof(param->rqc));
673 MLX5_SET(rqc, rqc, cqn, rq->cq.mcq.cqn);
674 MLX5_SET(rqc, rqc, state, MLX5_RQC_STATE_RST);
675 MLX5_SET(wq, wq, log_wq_pg_sz, rq->wq_ctrl.buf.page_shift -
676 MLX5_ADAPTER_PAGE_SHIFT);
677 MLX5_SET64(wq, wq, dbr_addr, rq->wq_ctrl.db.dma);
679 mlx5_fill_page_frag_array(&rq->wq_ctrl.buf,
680 (__be64 *)MLX5_ADDR_OF(wq, wq, pas));
682 err = mlx5_core_create_rq(mdev, in, inlen, &rq->rqn);
689 static int mlx5e_modify_rq_state(struct mlx5e_rq *rq, int curr_state,
692 struct mlx5_core_dev *mdev = rq->mdev;
699 inlen = MLX5_ST_SZ_BYTES(modify_rq_in);
700 in = kvzalloc(inlen, GFP_KERNEL);
704 rqc = MLX5_ADDR_OF(modify_rq_in, in, ctx);
706 MLX5_SET(modify_rq_in, in, rq_state, curr_state);
707 MLX5_SET(rqc, rqc, state, next_state);
709 err = mlx5_core_modify_rq(mdev, rq->rqn, in, inlen);
716 static int mlx5e_modify_rq_scatter_fcs(struct mlx5e_rq *rq, bool enable)
718 struct mlx5e_channel *c = rq->channel;
719 struct mlx5e_priv *priv = c->priv;
720 struct mlx5_core_dev *mdev = priv->mdev;
727 inlen = MLX5_ST_SZ_BYTES(modify_rq_in);
728 in = kvzalloc(inlen, GFP_KERNEL);
732 rqc = MLX5_ADDR_OF(modify_rq_in, in, ctx);
734 MLX5_SET(modify_rq_in, in, rq_state, MLX5_RQC_STATE_RDY);
735 MLX5_SET64(modify_rq_in, in, modify_bitmask,
736 MLX5_MODIFY_RQ_IN_MODIFY_BITMASK_SCATTER_FCS);
737 MLX5_SET(rqc, rqc, scatter_fcs, enable);
738 MLX5_SET(rqc, rqc, state, MLX5_RQC_STATE_RDY);
740 err = mlx5_core_modify_rq(mdev, rq->rqn, in, inlen);
747 static int mlx5e_modify_rq_vsd(struct mlx5e_rq *rq, bool vsd)
749 struct mlx5e_channel *c = rq->channel;
750 struct mlx5_core_dev *mdev = c->mdev;
756 inlen = MLX5_ST_SZ_BYTES(modify_rq_in);
757 in = kvzalloc(inlen, GFP_KERNEL);
761 rqc = MLX5_ADDR_OF(modify_rq_in, in, ctx);
763 MLX5_SET(modify_rq_in, in, rq_state, MLX5_RQC_STATE_RDY);
764 MLX5_SET64(modify_rq_in, in, modify_bitmask,
765 MLX5_MODIFY_RQ_IN_MODIFY_BITMASK_VSD);
766 MLX5_SET(rqc, rqc, vsd, vsd);
767 MLX5_SET(rqc, rqc, state, MLX5_RQC_STATE_RDY);
769 err = mlx5_core_modify_rq(mdev, rq->rqn, in, inlen);
776 static void mlx5e_destroy_rq(struct mlx5e_rq *rq)
778 mlx5_core_destroy_rq(rq->mdev, rq->rqn);
781 static int mlx5e_wait_for_min_rx_wqes(struct mlx5e_rq *rq, int wait_time)
783 unsigned long exp_time = jiffies + msecs_to_jiffies(wait_time);
784 struct mlx5e_channel *c = rq->channel;
786 u16 min_wqes = mlx5_min_rx_wqes(rq->wq_type, mlx5e_rqwq_get_size(rq));
789 if (mlx5e_rqwq_get_cur_sz(rq) >= min_wqes)
793 } while (time_before(jiffies, exp_time));
795 netdev_warn(c->netdev, "Failed to get min RX wqes on Channel[%d] RQN[0x%x] wq cur_sz(%d) min_rx_wqes(%d)\n",
796 c->ix, rq->rqn, mlx5e_rqwq_get_cur_sz(rq), min_wqes);
801 static void mlx5e_free_rx_descs(struct mlx5e_rq *rq)
806 if (rq->wq_type == MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ) {
807 struct mlx5_wq_ll *wq = &rq->mpwqe.wq;
811 /* Outstanding UMR WQEs (in progress) start at wq->head */
812 for (i = 0; i < rq->mpwqe.umr_in_progress; i++) {
813 rq->dealloc_wqe(rq, head);
814 head = mlx5_wq_ll_get_wqe_next_ix(wq, head);
817 while (!mlx5_wq_ll_is_empty(wq)) {
818 struct mlx5e_rx_wqe_ll *wqe;
820 wqe_ix_be = *wq->tail_next;
821 wqe_ix = be16_to_cpu(wqe_ix_be);
822 wqe = mlx5_wq_ll_get_wqe(wq, wqe_ix);
823 rq->dealloc_wqe(rq, wqe_ix);
824 mlx5_wq_ll_pop(wq, wqe_ix_be,
825 &wqe->next.next_wqe_index);
828 struct mlx5_wq_cyc *wq = &rq->wqe.wq;
830 while (!mlx5_wq_cyc_is_empty(wq)) {
831 wqe_ix = mlx5_wq_cyc_get_tail(wq);
832 rq->dealloc_wqe(rq, wqe_ix);
839 static int mlx5e_open_rq(struct mlx5e_channel *c,
840 struct mlx5e_params *params,
841 struct mlx5e_rq_param *param,
846 err = mlx5e_alloc_rq(c, params, param, rq);
850 err = mlx5e_create_rq(rq, param);
854 err = mlx5e_modify_rq_state(rq, MLX5_RQC_STATE_RST, MLX5_RQC_STATE_RDY);
858 if (params->rx_dim_enabled)
859 __set_bit(MLX5E_RQ_STATE_AM, &c->rq.state);
861 /* We disable csum_complete when XDP is enabled since
862 * XDP programs might manipulate packets which will render
863 * skb->checksum incorrect.
865 if (MLX5E_GET_PFLAG(params, MLX5E_PFLAG_RX_NO_CSUM_COMPLETE) || c->xdp)
866 __set_bit(MLX5E_RQ_STATE_NO_CSUM_COMPLETE, &c->rq.state);
871 mlx5e_destroy_rq(rq);
878 static void mlx5e_activate_rq(struct mlx5e_rq *rq)
880 set_bit(MLX5E_RQ_STATE_ENABLED, &rq->state);
881 mlx5e_trigger_irq(&rq->channel->icosq);
884 static void mlx5e_deactivate_rq(struct mlx5e_rq *rq)
886 clear_bit(MLX5E_RQ_STATE_ENABLED, &rq->state);
887 napi_synchronize(&rq->channel->napi); /* prevent mlx5e_post_rx_wqes */
890 static void mlx5e_close_rq(struct mlx5e_rq *rq)
892 cancel_work_sync(&rq->dim.work);
893 mlx5e_destroy_rq(rq);
894 mlx5e_free_rx_descs(rq);
898 static void mlx5e_free_xdpsq_db(struct mlx5e_xdpsq *sq)
900 kvfree(sq->db.xdpi_fifo.xi);
901 kvfree(sq->db.wqe_info);
904 static int mlx5e_alloc_xdpsq_fifo(struct mlx5e_xdpsq *sq, int numa)
906 struct mlx5e_xdp_info_fifo *xdpi_fifo = &sq->db.xdpi_fifo;
907 int wq_sz = mlx5_wq_cyc_get_size(&sq->wq);
908 int dsegs_per_wq = wq_sz * MLX5_SEND_WQEBB_NUM_DS;
910 xdpi_fifo->xi = kvzalloc_node(sizeof(*xdpi_fifo->xi) * dsegs_per_wq,
915 xdpi_fifo->pc = &sq->xdpi_fifo_pc;
916 xdpi_fifo->cc = &sq->xdpi_fifo_cc;
917 xdpi_fifo->mask = dsegs_per_wq - 1;
922 static int mlx5e_alloc_xdpsq_db(struct mlx5e_xdpsq *sq, int numa)
924 int wq_sz = mlx5_wq_cyc_get_size(&sq->wq);
927 sq->db.wqe_info = kvzalloc_node(sizeof(*sq->db.wqe_info) * wq_sz,
929 if (!sq->db.wqe_info)
932 err = mlx5e_alloc_xdpsq_fifo(sq, numa);
934 mlx5e_free_xdpsq_db(sq);
941 static int mlx5e_alloc_xdpsq(struct mlx5e_channel *c,
942 struct mlx5e_params *params,
943 struct mlx5e_sq_param *param,
944 struct mlx5e_xdpsq *sq,
947 void *sqc_wq = MLX5_ADDR_OF(sqc, param->sqc, wq);
948 struct mlx5_core_dev *mdev = c->mdev;
949 struct mlx5_wq_cyc *wq = &sq->wq;
953 sq->mkey_be = c->mkey_be;
955 sq->uar_map = mdev->mlx5e_res.bfreg.map;
956 sq->min_inline_mode = params->tx_min_inline_mode;
957 sq->hw_mtu = MLX5E_SW2HW_MTU(params, params->sw_mtu);
958 sq->stats = is_redirect ?
959 &c->priv->channel_stats[c->ix].xdpsq :
960 &c->priv->channel_stats[c->ix].rq_xdpsq;
962 param->wq.db_numa_node = cpu_to_node(c->cpu);
963 err = mlx5_wq_cyc_create(mdev, ¶m->wq, sqc_wq, wq, &sq->wq_ctrl);
966 wq->db = &wq->db[MLX5_SND_DBR];
968 err = mlx5e_alloc_xdpsq_db(sq, cpu_to_node(c->cpu));
970 goto err_sq_wq_destroy;
975 mlx5_wq_destroy(&sq->wq_ctrl);
980 static void mlx5e_free_xdpsq(struct mlx5e_xdpsq *sq)
982 mlx5e_free_xdpsq_db(sq);
983 mlx5_wq_destroy(&sq->wq_ctrl);
986 static void mlx5e_free_icosq_db(struct mlx5e_icosq *sq)
988 kvfree(sq->db.ico_wqe);
991 static int mlx5e_alloc_icosq_db(struct mlx5e_icosq *sq, int numa)
993 int wq_sz = mlx5_wq_cyc_get_size(&sq->wq);
995 sq->db.ico_wqe = kvzalloc_node(array_size(wq_sz,
996 sizeof(*sq->db.ico_wqe)),
1004 static int mlx5e_alloc_icosq(struct mlx5e_channel *c,
1005 struct mlx5e_sq_param *param,
1006 struct mlx5e_icosq *sq)
1008 void *sqc_wq = MLX5_ADDR_OF(sqc, param->sqc, wq);
1009 struct mlx5_core_dev *mdev = c->mdev;
1010 struct mlx5_wq_cyc *wq = &sq->wq;
1014 sq->uar_map = mdev->mlx5e_res.bfreg.map;
1016 param->wq.db_numa_node = cpu_to_node(c->cpu);
1017 err = mlx5_wq_cyc_create(mdev, ¶m->wq, sqc_wq, wq, &sq->wq_ctrl);
1020 wq->db = &wq->db[MLX5_SND_DBR];
1022 err = mlx5e_alloc_icosq_db(sq, cpu_to_node(c->cpu));
1024 goto err_sq_wq_destroy;
1029 mlx5_wq_destroy(&sq->wq_ctrl);
1034 static void mlx5e_free_icosq(struct mlx5e_icosq *sq)
1036 mlx5e_free_icosq_db(sq);
1037 mlx5_wq_destroy(&sq->wq_ctrl);
1040 static void mlx5e_free_txqsq_db(struct mlx5e_txqsq *sq)
1042 kvfree(sq->db.wqe_info);
1043 kvfree(sq->db.dma_fifo);
1046 static int mlx5e_alloc_txqsq_db(struct mlx5e_txqsq *sq, int numa)
1048 int wq_sz = mlx5_wq_cyc_get_size(&sq->wq);
1049 int df_sz = wq_sz * MLX5_SEND_WQEBB_NUM_DS;
1051 sq->db.dma_fifo = kvzalloc_node(array_size(df_sz,
1052 sizeof(*sq->db.dma_fifo)),
1054 sq->db.wqe_info = kvzalloc_node(array_size(wq_sz,
1055 sizeof(*sq->db.wqe_info)),
1057 if (!sq->db.dma_fifo || !sq->db.wqe_info) {
1058 mlx5e_free_txqsq_db(sq);
1062 sq->dma_fifo_mask = df_sz - 1;
1067 static void mlx5e_tx_err_cqe_work(struct work_struct *recover_work);
1068 static int mlx5e_alloc_txqsq(struct mlx5e_channel *c,
1070 struct mlx5e_params *params,
1071 struct mlx5e_sq_param *param,
1072 struct mlx5e_txqsq *sq,
1075 void *sqc_wq = MLX5_ADDR_OF(sqc, param->sqc, wq);
1076 struct mlx5_core_dev *mdev = c->mdev;
1077 struct mlx5_wq_cyc *wq = &sq->wq;
1081 sq->tstamp = c->tstamp;
1082 sq->clock = &mdev->clock;
1083 sq->mkey_be = c->mkey_be;
1085 sq->txq_ix = txq_ix;
1086 sq->uar_map = mdev->mlx5e_res.bfreg.map;
1087 sq->min_inline_mode = params->tx_min_inline_mode;
1088 sq->stats = &c->priv->channel_stats[c->ix].sq[tc];
1089 INIT_WORK(&sq->recover_work, mlx5e_tx_err_cqe_work);
1090 if (MLX5_IPSEC_DEV(c->priv->mdev))
1091 set_bit(MLX5E_SQ_STATE_IPSEC, &sq->state);
1092 if (mlx5_accel_is_tls_device(c->priv->mdev))
1093 set_bit(MLX5E_SQ_STATE_TLS, &sq->state);
1095 param->wq.db_numa_node = cpu_to_node(c->cpu);
1096 err = mlx5_wq_cyc_create(mdev, ¶m->wq, sqc_wq, wq, &sq->wq_ctrl);
1099 wq->db = &wq->db[MLX5_SND_DBR];
1101 err = mlx5e_alloc_txqsq_db(sq, cpu_to_node(c->cpu));
1103 goto err_sq_wq_destroy;
1105 INIT_WORK(&sq->dim.work, mlx5e_tx_dim_work);
1106 sq->dim.mode = params->tx_cq_moderation.cq_period_mode;
1111 mlx5_wq_destroy(&sq->wq_ctrl);
1116 static void mlx5e_free_txqsq(struct mlx5e_txqsq *sq)
1118 mlx5e_free_txqsq_db(sq);
1119 mlx5_wq_destroy(&sq->wq_ctrl);
1122 struct mlx5e_create_sq_param {
1123 struct mlx5_wq_ctrl *wq_ctrl;
1130 static int mlx5e_create_sq(struct mlx5_core_dev *mdev,
1131 struct mlx5e_sq_param *param,
1132 struct mlx5e_create_sq_param *csp,
1141 inlen = MLX5_ST_SZ_BYTES(create_sq_in) +
1142 sizeof(u64) * csp->wq_ctrl->buf.npages;
1143 in = kvzalloc(inlen, GFP_KERNEL);
1147 sqc = MLX5_ADDR_OF(create_sq_in, in, ctx);
1148 wq = MLX5_ADDR_OF(sqc, sqc, wq);
1150 memcpy(sqc, param->sqc, sizeof(param->sqc));
1151 MLX5_SET(sqc, sqc, tis_lst_sz, csp->tis_lst_sz);
1152 MLX5_SET(sqc, sqc, tis_num_0, csp->tisn);
1153 MLX5_SET(sqc, sqc, cqn, csp->cqn);
1155 if (MLX5_CAP_ETH(mdev, wqe_inline_mode) == MLX5_CAP_INLINE_MODE_VPORT_CONTEXT)
1156 MLX5_SET(sqc, sqc, min_wqe_inline_mode, csp->min_inline_mode);
1158 MLX5_SET(sqc, sqc, state, MLX5_SQC_STATE_RST);
1159 MLX5_SET(sqc, sqc, flush_in_error_en, 1);
1161 MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_CYCLIC);
1162 MLX5_SET(wq, wq, uar_page, mdev->mlx5e_res.bfreg.index);
1163 MLX5_SET(wq, wq, log_wq_pg_sz, csp->wq_ctrl->buf.page_shift -
1164 MLX5_ADAPTER_PAGE_SHIFT);
1165 MLX5_SET64(wq, wq, dbr_addr, csp->wq_ctrl->db.dma);
1167 mlx5_fill_page_frag_array(&csp->wq_ctrl->buf,
1168 (__be64 *)MLX5_ADDR_OF(wq, wq, pas));
1170 err = mlx5_core_create_sq(mdev, in, inlen, sqn);
1177 int mlx5e_modify_sq(struct mlx5_core_dev *mdev, u32 sqn,
1178 struct mlx5e_modify_sq_param *p)
1185 inlen = MLX5_ST_SZ_BYTES(modify_sq_in);
1186 in = kvzalloc(inlen, GFP_KERNEL);
1190 sqc = MLX5_ADDR_OF(modify_sq_in, in, ctx);
1192 MLX5_SET(modify_sq_in, in, sq_state, p->curr_state);
1193 MLX5_SET(sqc, sqc, state, p->next_state);
1194 if (p->rl_update && p->next_state == MLX5_SQC_STATE_RDY) {
1195 MLX5_SET64(modify_sq_in, in, modify_bitmask, 1);
1196 MLX5_SET(sqc, sqc, packet_pacing_rate_limit_index, p->rl_index);
1199 err = mlx5_core_modify_sq(mdev, sqn, in, inlen);
1206 static void mlx5e_destroy_sq(struct mlx5_core_dev *mdev, u32 sqn)
1208 mlx5_core_destroy_sq(mdev, sqn);
1211 static int mlx5e_create_sq_rdy(struct mlx5_core_dev *mdev,
1212 struct mlx5e_sq_param *param,
1213 struct mlx5e_create_sq_param *csp,
1216 struct mlx5e_modify_sq_param msp = {0};
1219 err = mlx5e_create_sq(mdev, param, csp, sqn);
1223 msp.curr_state = MLX5_SQC_STATE_RST;
1224 msp.next_state = MLX5_SQC_STATE_RDY;
1225 err = mlx5e_modify_sq(mdev, *sqn, &msp);
1227 mlx5e_destroy_sq(mdev, *sqn);
1232 static int mlx5e_set_sq_maxrate(struct net_device *dev,
1233 struct mlx5e_txqsq *sq, u32 rate);
1235 static int mlx5e_open_txqsq(struct mlx5e_channel *c,
1238 struct mlx5e_params *params,
1239 struct mlx5e_sq_param *param,
1240 struct mlx5e_txqsq *sq,
1243 struct mlx5e_create_sq_param csp = {};
1247 err = mlx5e_alloc_txqsq(c, txq_ix, params, param, sq, tc);
1253 csp.cqn = sq->cq.mcq.cqn;
1254 csp.wq_ctrl = &sq->wq_ctrl;
1255 csp.min_inline_mode = sq->min_inline_mode;
1256 err = mlx5e_create_sq_rdy(c->mdev, param, &csp, &sq->sqn);
1258 goto err_free_txqsq;
1260 tx_rate = c->priv->tx_rates[sq->txq_ix];
1262 mlx5e_set_sq_maxrate(c->netdev, sq, tx_rate);
1264 if (params->tx_dim_enabled)
1265 sq->state |= BIT(MLX5E_SQ_STATE_AM);
1270 clear_bit(MLX5E_SQ_STATE_ENABLED, &sq->state);
1271 mlx5e_free_txqsq(sq);
1276 void mlx5e_activate_txqsq(struct mlx5e_txqsq *sq)
1278 sq->txq = netdev_get_tx_queue(sq->channel->netdev, sq->txq_ix);
1279 clear_bit(MLX5E_SQ_STATE_RECOVERING, &sq->state);
1280 set_bit(MLX5E_SQ_STATE_ENABLED, &sq->state);
1281 netdev_tx_reset_queue(sq->txq);
1282 netif_tx_start_queue(sq->txq);
1285 void mlx5e_tx_disable_queue(struct netdev_queue *txq)
1287 __netif_tx_lock_bh(txq);
1288 netif_tx_stop_queue(txq);
1289 __netif_tx_unlock_bh(txq);
1292 static void mlx5e_deactivate_txqsq(struct mlx5e_txqsq *sq)
1294 struct mlx5e_channel *c = sq->channel;
1295 struct mlx5_wq_cyc *wq = &sq->wq;
1297 clear_bit(MLX5E_SQ_STATE_ENABLED, &sq->state);
1298 /* prevent netif_tx_wake_queue */
1299 napi_synchronize(&c->napi);
1301 mlx5e_tx_disable_queue(sq->txq);
1303 /* last doorbell out, godspeed .. */
1304 if (mlx5e_wqc_has_room_for(wq, sq->cc, sq->pc, 1)) {
1305 u16 pi = mlx5_wq_cyc_ctr2ix(wq, sq->pc);
1306 struct mlx5e_tx_wqe *nop;
1308 sq->db.wqe_info[pi].skb = NULL;
1309 nop = mlx5e_post_nop(wq, sq->sqn, &sq->pc);
1310 mlx5e_notify_hw(wq, sq->pc, sq->uar_map, &nop->ctrl);
1314 static void mlx5e_close_txqsq(struct mlx5e_txqsq *sq)
1316 struct mlx5e_channel *c = sq->channel;
1317 struct mlx5_core_dev *mdev = c->mdev;
1318 struct mlx5_rate_limit rl = {0};
1320 cancel_work_sync(&sq->dim.work);
1321 cancel_work_sync(&sq->recover_work);
1322 mlx5e_destroy_sq(mdev, sq->sqn);
1323 if (sq->rate_limit) {
1324 rl.rate = sq->rate_limit;
1325 mlx5_rl_remove_rate(mdev, &rl);
1327 mlx5e_free_txqsq_descs(sq);
1328 mlx5e_free_txqsq(sq);
1331 static void mlx5e_tx_err_cqe_work(struct work_struct *recover_work)
1333 struct mlx5e_txqsq *sq = container_of(recover_work, struct mlx5e_txqsq,
1336 mlx5e_tx_reporter_err_cqe(sq);
1339 static int mlx5e_open_icosq(struct mlx5e_channel *c,
1340 struct mlx5e_params *params,
1341 struct mlx5e_sq_param *param,
1342 struct mlx5e_icosq *sq)
1344 struct mlx5e_create_sq_param csp = {};
1347 err = mlx5e_alloc_icosq(c, param, sq);
1351 csp.cqn = sq->cq.mcq.cqn;
1352 csp.wq_ctrl = &sq->wq_ctrl;
1353 csp.min_inline_mode = params->tx_min_inline_mode;
1354 set_bit(MLX5E_SQ_STATE_ENABLED, &sq->state);
1355 err = mlx5e_create_sq_rdy(c->mdev, param, &csp, &sq->sqn);
1357 goto err_free_icosq;
1362 clear_bit(MLX5E_SQ_STATE_ENABLED, &sq->state);
1363 mlx5e_free_icosq(sq);
1368 static void mlx5e_close_icosq(struct mlx5e_icosq *sq)
1370 struct mlx5e_channel *c = sq->channel;
1372 clear_bit(MLX5E_SQ_STATE_ENABLED, &sq->state);
1373 napi_synchronize(&c->napi);
1375 mlx5e_destroy_sq(c->mdev, sq->sqn);
1376 mlx5e_free_icosq(sq);
1379 static int mlx5e_open_xdpsq(struct mlx5e_channel *c,
1380 struct mlx5e_params *params,
1381 struct mlx5e_sq_param *param,
1382 struct mlx5e_xdpsq *sq,
1385 struct mlx5e_create_sq_param csp = {};
1388 err = mlx5e_alloc_xdpsq(c, params, param, sq, is_redirect);
1393 csp.tisn = c->priv->tisn[0]; /* tc = 0 */
1394 csp.cqn = sq->cq.mcq.cqn;
1395 csp.wq_ctrl = &sq->wq_ctrl;
1396 csp.min_inline_mode = sq->min_inline_mode;
1397 set_bit(MLX5E_SQ_STATE_ENABLED, &sq->state);
1398 err = mlx5e_create_sq_rdy(c->mdev, param, &csp, &sq->sqn);
1400 goto err_free_xdpsq;
1402 mlx5e_set_xmit_fp(sq, param->is_mpw);
1404 if (!param->is_mpw) {
1405 unsigned int ds_cnt = MLX5E_XDP_TX_DS_COUNT;
1406 unsigned int inline_hdr_sz = 0;
1409 if (sq->min_inline_mode != MLX5_INLINE_MODE_NONE) {
1410 inline_hdr_sz = MLX5E_XDP_MIN_INLINE;
1414 /* Pre initialize fixed WQE fields */
1415 for (i = 0; i < mlx5_wq_cyc_get_size(&sq->wq); i++) {
1416 struct mlx5e_xdp_wqe_info *wi = &sq->db.wqe_info[i];
1417 struct mlx5e_tx_wqe *wqe = mlx5_wq_cyc_get_wqe(&sq->wq, i);
1418 struct mlx5_wqe_ctrl_seg *cseg = &wqe->ctrl;
1419 struct mlx5_wqe_eth_seg *eseg = &wqe->eth;
1420 struct mlx5_wqe_data_seg *dseg;
1422 cseg->qpn_ds = cpu_to_be32((sq->sqn << 8) | ds_cnt);
1423 eseg->inline_hdr.sz = cpu_to_be16(inline_hdr_sz);
1425 dseg = (struct mlx5_wqe_data_seg *)cseg + (ds_cnt - 1);
1426 dseg->lkey = sq->mkey_be;
1436 clear_bit(MLX5E_SQ_STATE_ENABLED, &sq->state);
1437 mlx5e_free_xdpsq(sq);
1442 static void mlx5e_close_xdpsq(struct mlx5e_xdpsq *sq, struct mlx5e_rq *rq)
1444 struct mlx5e_channel *c = sq->channel;
1446 clear_bit(MLX5E_SQ_STATE_ENABLED, &sq->state);
1447 napi_synchronize(&c->napi);
1449 mlx5e_destroy_sq(c->mdev, sq->sqn);
1450 mlx5e_free_xdpsq_descs(sq, rq);
1451 mlx5e_free_xdpsq(sq);
1454 static int mlx5e_alloc_cq_common(struct mlx5_core_dev *mdev,
1455 struct mlx5e_cq_param *param,
1456 struct mlx5e_cq *cq)
1458 struct mlx5_core_cq *mcq = &cq->mcq;
1464 err = mlx5_vector2eqn(mdev, param->eq_ix, &eqn_not_used, &irqn);
1468 err = mlx5_cqwq_create(mdev, ¶m->wq, param->cqc, &cq->wq,
1474 mcq->set_ci_db = cq->wq_ctrl.db.db;
1475 mcq->arm_db = cq->wq_ctrl.db.db + 1;
1476 *mcq->set_ci_db = 0;
1478 mcq->vector = param->eq_ix;
1479 mcq->comp = mlx5e_completion_event;
1480 mcq->event = mlx5e_cq_error_event;
1483 for (i = 0; i < mlx5_cqwq_get_size(&cq->wq); i++) {
1484 struct mlx5_cqe64 *cqe = mlx5_cqwq_get_wqe(&cq->wq, i);
1494 static int mlx5e_alloc_cq(struct mlx5e_channel *c,
1495 struct mlx5e_cq_param *param,
1496 struct mlx5e_cq *cq)
1498 struct mlx5_core_dev *mdev = c->priv->mdev;
1501 param->wq.buf_numa_node = cpu_to_node(c->cpu);
1502 param->wq.db_numa_node = cpu_to_node(c->cpu);
1503 param->eq_ix = c->ix;
1505 err = mlx5e_alloc_cq_common(mdev, param, cq);
1507 cq->napi = &c->napi;
1513 static void mlx5e_free_cq(struct mlx5e_cq *cq)
1515 mlx5_wq_destroy(&cq->wq_ctrl);
1518 static int mlx5e_create_cq(struct mlx5e_cq *cq, struct mlx5e_cq_param *param)
1520 struct mlx5_core_dev *mdev = cq->mdev;
1521 struct mlx5_core_cq *mcq = &cq->mcq;
1526 unsigned int irqn_not_used;
1530 err = mlx5_vector2eqn(mdev, param->eq_ix, &eqn, &irqn_not_used);
1534 inlen = MLX5_ST_SZ_BYTES(create_cq_in) +
1535 sizeof(u64) * cq->wq_ctrl.buf.npages;
1536 in = kvzalloc(inlen, GFP_KERNEL);
1540 cqc = MLX5_ADDR_OF(create_cq_in, in, cq_context);
1542 memcpy(cqc, param->cqc, sizeof(param->cqc));
1544 mlx5_fill_page_frag_array(&cq->wq_ctrl.buf,
1545 (__be64 *)MLX5_ADDR_OF(create_cq_in, in, pas));
1547 MLX5_SET(cqc, cqc, cq_period_mode, param->cq_period_mode);
1548 MLX5_SET(cqc, cqc, c_eqn, eqn);
1549 MLX5_SET(cqc, cqc, uar_page, mdev->priv.uar->index);
1550 MLX5_SET(cqc, cqc, log_page_size, cq->wq_ctrl.buf.page_shift -
1551 MLX5_ADAPTER_PAGE_SHIFT);
1552 MLX5_SET64(cqc, cqc, dbr_addr, cq->wq_ctrl.db.dma);
1554 err = mlx5_core_create_cq(mdev, mcq, in, inlen);
1566 static void mlx5e_destroy_cq(struct mlx5e_cq *cq)
1568 mlx5_core_destroy_cq(cq->mdev, &cq->mcq);
1571 static int mlx5e_open_cq(struct mlx5e_channel *c,
1572 struct net_dim_cq_moder moder,
1573 struct mlx5e_cq_param *param,
1574 struct mlx5e_cq *cq)
1576 struct mlx5_core_dev *mdev = c->mdev;
1579 err = mlx5e_alloc_cq(c, param, cq);
1583 err = mlx5e_create_cq(cq, param);
1587 if (MLX5_CAP_GEN(mdev, cq_moderation))
1588 mlx5_core_modify_cq_moderation(mdev, &cq->mcq, moder.usec, moder.pkts);
1597 static void mlx5e_close_cq(struct mlx5e_cq *cq)
1599 mlx5e_destroy_cq(cq);
1603 static int mlx5e_open_tx_cqs(struct mlx5e_channel *c,
1604 struct mlx5e_params *params,
1605 struct mlx5e_channel_param *cparam)
1610 for (tc = 0; tc < c->num_tc; tc++) {
1611 err = mlx5e_open_cq(c, params->tx_cq_moderation,
1612 &cparam->tx_cq, &c->sq[tc].cq);
1614 goto err_close_tx_cqs;
1620 for (tc--; tc >= 0; tc--)
1621 mlx5e_close_cq(&c->sq[tc].cq);
1626 static void mlx5e_close_tx_cqs(struct mlx5e_channel *c)
1630 for (tc = 0; tc < c->num_tc; tc++)
1631 mlx5e_close_cq(&c->sq[tc].cq);
1634 static int mlx5e_open_sqs(struct mlx5e_channel *c,
1635 struct mlx5e_params *params,
1636 struct mlx5e_channel_param *cparam)
1638 struct mlx5e_priv *priv = c->priv;
1639 int err, tc, max_nch = mlx5e_get_netdev_max_channels(priv->netdev);
1641 for (tc = 0; tc < params->num_tc; tc++) {
1642 int txq_ix = c->ix + tc * max_nch;
1644 err = mlx5e_open_txqsq(c, c->priv->tisn[tc], txq_ix,
1645 params, &cparam->sq, &c->sq[tc], tc);
1653 for (tc--; tc >= 0; tc--)
1654 mlx5e_close_txqsq(&c->sq[tc]);
1659 static void mlx5e_close_sqs(struct mlx5e_channel *c)
1663 for (tc = 0; tc < c->num_tc; tc++)
1664 mlx5e_close_txqsq(&c->sq[tc]);
1667 static int mlx5e_set_sq_maxrate(struct net_device *dev,
1668 struct mlx5e_txqsq *sq, u32 rate)
1670 struct mlx5e_priv *priv = netdev_priv(dev);
1671 struct mlx5_core_dev *mdev = priv->mdev;
1672 struct mlx5e_modify_sq_param msp = {0};
1673 struct mlx5_rate_limit rl = {0};
1677 if (rate == sq->rate_limit)
1681 if (sq->rate_limit) {
1682 rl.rate = sq->rate_limit;
1683 /* remove current rl index to free space to next ones */
1684 mlx5_rl_remove_rate(mdev, &rl);
1691 err = mlx5_rl_add_rate(mdev, &rl_index, &rl);
1693 netdev_err(dev, "Failed configuring rate %u: %d\n",
1699 msp.curr_state = MLX5_SQC_STATE_RDY;
1700 msp.next_state = MLX5_SQC_STATE_RDY;
1701 msp.rl_index = rl_index;
1702 msp.rl_update = true;
1703 err = mlx5e_modify_sq(mdev, sq->sqn, &msp);
1705 netdev_err(dev, "Failed configuring rate %u: %d\n",
1707 /* remove the rate from the table */
1709 mlx5_rl_remove_rate(mdev, &rl);
1713 sq->rate_limit = rate;
1717 static int mlx5e_set_tx_maxrate(struct net_device *dev, int index, u32 rate)
1719 struct mlx5e_priv *priv = netdev_priv(dev);
1720 struct mlx5_core_dev *mdev = priv->mdev;
1721 struct mlx5e_txqsq *sq = priv->txq2sq[index];
1724 if (!mlx5_rl_is_supported(mdev)) {
1725 netdev_err(dev, "Rate limiting is not supported on this device\n");
1729 /* rate is given in Mb/sec, HW config is in Kb/sec */
1732 /* Check whether rate in valid range, 0 is always valid */
1733 if (rate && !mlx5_rl_is_in_range(mdev, rate)) {
1734 netdev_err(dev, "TX rate %u, is not in range\n", rate);
1738 mutex_lock(&priv->state_lock);
1739 if (test_bit(MLX5E_STATE_OPENED, &priv->state))
1740 err = mlx5e_set_sq_maxrate(dev, sq, rate);
1742 priv->tx_rates[index] = rate;
1743 mutex_unlock(&priv->state_lock);
1748 static int mlx5e_alloc_xps_cpumask(struct mlx5e_channel *c,
1749 struct mlx5e_params *params)
1751 int num_comp_vectors = mlx5_comp_vectors_count(c->mdev);
1754 if (!zalloc_cpumask_var(&c->xps_cpumask, GFP_KERNEL))
1757 for (irq = c->ix; irq < num_comp_vectors; irq += params->num_channels) {
1758 int cpu = cpumask_first(mlx5_comp_irq_get_affinity_mask(c->mdev, irq));
1760 cpumask_set_cpu(cpu, c->xps_cpumask);
1766 static void mlx5e_free_xps_cpumask(struct mlx5e_channel *c)
1768 free_cpumask_var(c->xps_cpumask);
1771 static int mlx5e_open_channel(struct mlx5e_priv *priv, int ix,
1772 struct mlx5e_params *params,
1773 struct mlx5e_channel_param *cparam,
1774 struct mlx5e_channel **cp)
1776 int cpu = cpumask_first(mlx5_comp_irq_get_affinity_mask(priv->mdev, ix));
1777 struct net_dim_cq_moder icocq_moder = {0, 0};
1778 struct net_device *netdev = priv->netdev;
1779 struct mlx5e_channel *c;
1784 err = mlx5_vector2eqn(priv->mdev, ix, &eqn, &irq);
1788 c = kvzalloc_node(sizeof(*c), GFP_KERNEL, cpu_to_node(cpu));
1793 c->mdev = priv->mdev;
1794 c->tstamp = &priv->tstamp;
1797 c->pdev = &priv->mdev->pdev->dev;
1798 c->netdev = priv->netdev;
1799 c->mkey_be = cpu_to_be32(priv->mdev->mlx5e_res.mkey.key);
1800 c->num_tc = params->num_tc;
1801 c->xdp = !!params->xdp_prog;
1802 c->stats = &priv->channel_stats[ix].ch;
1803 c->irq_desc = irq_to_desc(irq);
1805 err = mlx5e_alloc_xps_cpumask(c, params);
1807 goto err_free_channel;
1809 netif_napi_add(netdev, &c->napi, mlx5e_napi_poll, 64);
1811 err = mlx5e_open_cq(c, icocq_moder, &cparam->icosq_cq, &c->icosq.cq);
1815 err = mlx5e_open_tx_cqs(c, params, cparam);
1817 goto err_close_icosq_cq;
1819 err = mlx5e_open_cq(c, params->tx_cq_moderation, &cparam->tx_cq, &c->xdpsq.cq);
1821 goto err_close_tx_cqs;
1823 err = mlx5e_open_cq(c, params->rx_cq_moderation, &cparam->rx_cq, &c->rq.cq);
1825 goto err_close_xdp_tx_cqs;
1827 /* XDP SQ CQ params are same as normal TXQ sq CQ params */
1828 err = c->xdp ? mlx5e_open_cq(c, params->tx_cq_moderation,
1829 &cparam->tx_cq, &c->rq.xdpsq.cq) : 0;
1831 goto err_close_rx_cq;
1833 napi_enable(&c->napi);
1835 err = mlx5e_open_icosq(c, params, &cparam->icosq, &c->icosq);
1837 goto err_disable_napi;
1839 err = mlx5e_open_sqs(c, params, cparam);
1841 goto err_close_icosq;
1843 err = c->xdp ? mlx5e_open_xdpsq(c, params, &cparam->xdp_sq, &c->rq.xdpsq, false) : 0;
1847 err = mlx5e_open_rq(c, params, &cparam->rq, &c->rq);
1849 goto err_close_xdp_sq;
1851 err = mlx5e_open_xdpsq(c, params, &cparam->xdp_sq, &c->xdpsq, true);
1860 mlx5e_close_rq(&c->rq);
1864 mlx5e_close_xdpsq(&c->rq.xdpsq, &c->rq);
1870 mlx5e_close_icosq(&c->icosq);
1873 napi_disable(&c->napi);
1875 mlx5e_close_cq(&c->rq.xdpsq.cq);
1878 mlx5e_close_cq(&c->rq.cq);
1880 err_close_xdp_tx_cqs:
1881 mlx5e_close_cq(&c->xdpsq.cq);
1884 mlx5e_close_tx_cqs(c);
1887 mlx5e_close_cq(&c->icosq.cq);
1890 netif_napi_del(&c->napi);
1891 mlx5e_free_xps_cpumask(c);
1899 static void mlx5e_activate_channel(struct mlx5e_channel *c)
1903 for (tc = 0; tc < c->num_tc; tc++)
1904 mlx5e_activate_txqsq(&c->sq[tc]);
1905 mlx5e_activate_rq(&c->rq);
1906 netif_set_xps_queue(c->netdev, c->xps_cpumask, c->ix);
1909 static void mlx5e_deactivate_channel(struct mlx5e_channel *c)
1913 mlx5e_deactivate_rq(&c->rq);
1914 for (tc = 0; tc < c->num_tc; tc++)
1915 mlx5e_deactivate_txqsq(&c->sq[tc]);
1918 static void mlx5e_close_channel(struct mlx5e_channel *c)
1920 mlx5e_close_xdpsq(&c->xdpsq, NULL);
1921 mlx5e_close_rq(&c->rq);
1923 mlx5e_close_xdpsq(&c->rq.xdpsq, &c->rq);
1925 mlx5e_close_icosq(&c->icosq);
1926 napi_disable(&c->napi);
1928 mlx5e_close_cq(&c->rq.xdpsq.cq);
1929 mlx5e_close_cq(&c->rq.cq);
1930 mlx5e_close_cq(&c->xdpsq.cq);
1931 mlx5e_close_tx_cqs(c);
1932 mlx5e_close_cq(&c->icosq.cq);
1933 netif_napi_del(&c->napi);
1934 mlx5e_free_xps_cpumask(c);
1939 #define DEFAULT_FRAG_SIZE (2048)
1941 static void mlx5e_build_rq_frags_info(struct mlx5_core_dev *mdev,
1942 struct mlx5e_params *params,
1943 struct mlx5e_rq_frags_info *info)
1945 u32 byte_count = MLX5E_SW2HW_MTU(params, params->sw_mtu);
1946 int frag_size_max = DEFAULT_FRAG_SIZE;
1950 #ifdef CONFIG_MLX5_EN_IPSEC
1951 if (MLX5_IPSEC_DEV(mdev))
1952 byte_count += MLX5E_METADATA_ETHER_LEN;
1955 if (mlx5e_rx_is_linear_skb(params)) {
1958 frag_stride = mlx5e_rx_get_linear_frag_sz(params);
1959 frag_stride = roundup_pow_of_two(frag_stride);
1961 info->arr[0].frag_size = byte_count;
1962 info->arr[0].frag_stride = frag_stride;
1963 info->num_frags = 1;
1964 info->wqe_bulk = PAGE_SIZE / frag_stride;
1968 if (byte_count > PAGE_SIZE +
1969 (MLX5E_MAX_RX_FRAGS - 1) * frag_size_max)
1970 frag_size_max = PAGE_SIZE;
1973 while (buf_size < byte_count) {
1974 int frag_size = byte_count - buf_size;
1976 if (i < MLX5E_MAX_RX_FRAGS - 1)
1977 frag_size = min(frag_size, frag_size_max);
1979 info->arr[i].frag_size = frag_size;
1980 info->arr[i].frag_stride = roundup_pow_of_two(frag_size);
1982 buf_size += frag_size;
1985 info->num_frags = i;
1986 /* number of different wqes sharing a page */
1987 info->wqe_bulk = 1 + (info->num_frags % 2);
1990 info->wqe_bulk = max_t(u8, info->wqe_bulk, 8);
1991 info->log_num_frags = order_base_2(info->num_frags);
1994 static inline u8 mlx5e_get_rqwq_log_stride(u8 wq_type, int ndsegs)
1996 int sz = sizeof(struct mlx5_wqe_data_seg) * ndsegs;
1999 case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ:
2000 sz += sizeof(struct mlx5e_rx_wqe_ll);
2002 default: /* MLX5_WQ_TYPE_CYCLIC */
2003 sz += sizeof(struct mlx5e_rx_wqe_cyc);
2006 return order_base_2(sz);
2009 static u8 mlx5e_get_rq_log_wq_sz(void *rqc)
2011 void *wq = MLX5_ADDR_OF(rqc, rqc, wq);
2013 return MLX5_GET(wq, wq, log_wq_sz);
2016 static void mlx5e_build_rq_param(struct mlx5e_priv *priv,
2017 struct mlx5e_params *params,
2018 struct mlx5e_rq_param *param)
2020 struct mlx5_core_dev *mdev = priv->mdev;
2021 void *rqc = param->rqc;
2022 void *wq = MLX5_ADDR_OF(rqc, rqc, wq);
2025 switch (params->rq_wq_type) {
2026 case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ:
2027 MLX5_SET(wq, wq, log_wqe_num_of_strides,
2028 mlx5e_mpwqe_get_log_num_strides(mdev, params) -
2029 MLX5_MPWQE_LOG_NUM_STRIDES_BASE);
2030 MLX5_SET(wq, wq, log_wqe_stride_size,
2031 mlx5e_mpwqe_get_log_stride_size(mdev, params) -
2032 MLX5_MPWQE_LOG_STRIDE_SZ_BASE);
2033 MLX5_SET(wq, wq, log_wq_sz, mlx5e_mpwqe_get_log_rq_size(params));
2035 default: /* MLX5_WQ_TYPE_CYCLIC */
2036 MLX5_SET(wq, wq, log_wq_sz, params->log_rq_mtu_frames);
2037 mlx5e_build_rq_frags_info(mdev, params, ¶m->frags_info);
2038 ndsegs = param->frags_info.num_frags;
2041 MLX5_SET(wq, wq, wq_type, params->rq_wq_type);
2042 MLX5_SET(wq, wq, end_padding_mode, MLX5_WQ_END_PAD_MODE_ALIGN);
2043 MLX5_SET(wq, wq, log_wq_stride,
2044 mlx5e_get_rqwq_log_stride(params->rq_wq_type, ndsegs));
2045 MLX5_SET(wq, wq, pd, mdev->mlx5e_res.pdn);
2046 MLX5_SET(rqc, rqc, counter_set_id, priv->q_counter);
2047 MLX5_SET(rqc, rqc, vsd, params->vlan_strip_disable);
2048 MLX5_SET(rqc, rqc, scatter_fcs, params->scatter_fcs_en);
2050 param->wq.buf_numa_node = dev_to_node(&mdev->pdev->dev);
2053 static void mlx5e_build_drop_rq_param(struct mlx5e_priv *priv,
2054 struct mlx5e_rq_param *param)
2056 struct mlx5_core_dev *mdev = priv->mdev;
2057 void *rqc = param->rqc;
2058 void *wq = MLX5_ADDR_OF(rqc, rqc, wq);
2060 MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_CYCLIC);
2061 MLX5_SET(wq, wq, log_wq_stride,
2062 mlx5e_get_rqwq_log_stride(MLX5_WQ_TYPE_CYCLIC, 1));
2063 MLX5_SET(rqc, rqc, counter_set_id, priv->drop_rq_q_counter);
2065 param->wq.buf_numa_node = dev_to_node(&mdev->pdev->dev);
2068 static void mlx5e_build_sq_param_common(struct mlx5e_priv *priv,
2069 struct mlx5e_sq_param *param)
2071 void *sqc = param->sqc;
2072 void *wq = MLX5_ADDR_OF(sqc, sqc, wq);
2074 MLX5_SET(wq, wq, log_wq_stride, ilog2(MLX5_SEND_WQE_BB));
2075 MLX5_SET(wq, wq, pd, priv->mdev->mlx5e_res.pdn);
2077 param->wq.buf_numa_node = dev_to_node(&priv->mdev->pdev->dev);
2080 static void mlx5e_build_sq_param(struct mlx5e_priv *priv,
2081 struct mlx5e_params *params,
2082 struct mlx5e_sq_param *param)
2084 void *sqc = param->sqc;
2085 void *wq = MLX5_ADDR_OF(sqc, sqc, wq);
2088 allow_swp = mlx5_geneve_tx_allowed(priv->mdev) ||
2089 !!MLX5_IPSEC_DEV(priv->mdev);
2090 mlx5e_build_sq_param_common(priv, param);
2091 MLX5_SET(wq, wq, log_wq_sz, params->log_sq_size);
2092 MLX5_SET(sqc, sqc, allow_swp, allow_swp);
2095 static void mlx5e_build_common_cq_param(struct mlx5e_priv *priv,
2096 struct mlx5e_cq_param *param)
2098 void *cqc = param->cqc;
2100 MLX5_SET(cqc, cqc, uar_page, priv->mdev->priv.uar->index);
2101 if (MLX5_CAP_GEN(priv->mdev, cqe_128_always) && cache_line_size() >= 128)
2102 MLX5_SET(cqc, cqc, cqe_sz, CQE_STRIDE_128_PAD);
2105 static void mlx5e_build_rx_cq_param(struct mlx5e_priv *priv,
2106 struct mlx5e_params *params,
2107 struct mlx5e_cq_param *param)
2109 struct mlx5_core_dev *mdev = priv->mdev;
2110 void *cqc = param->cqc;
2113 switch (params->rq_wq_type) {
2114 case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ:
2115 log_cq_size = mlx5e_mpwqe_get_log_rq_size(params) +
2116 mlx5e_mpwqe_get_log_num_strides(mdev, params);
2118 default: /* MLX5_WQ_TYPE_CYCLIC */
2119 log_cq_size = params->log_rq_mtu_frames;
2122 MLX5_SET(cqc, cqc, log_cq_size, log_cq_size);
2123 if (MLX5E_GET_PFLAG(params, MLX5E_PFLAG_RX_CQE_COMPRESS)) {
2124 MLX5_SET(cqc, cqc, mini_cqe_res_format, MLX5_CQE_FORMAT_CSUM);
2125 MLX5_SET(cqc, cqc, cqe_comp_en, 1);
2128 mlx5e_build_common_cq_param(priv, param);
2129 param->cq_period_mode = params->rx_cq_moderation.cq_period_mode;
2132 static void mlx5e_build_tx_cq_param(struct mlx5e_priv *priv,
2133 struct mlx5e_params *params,
2134 struct mlx5e_cq_param *param)
2136 void *cqc = param->cqc;
2138 MLX5_SET(cqc, cqc, log_cq_size, params->log_sq_size);
2140 mlx5e_build_common_cq_param(priv, param);
2141 param->cq_period_mode = params->tx_cq_moderation.cq_period_mode;
2144 static void mlx5e_build_ico_cq_param(struct mlx5e_priv *priv,
2146 struct mlx5e_cq_param *param)
2148 void *cqc = param->cqc;
2150 MLX5_SET(cqc, cqc, log_cq_size, log_wq_size);
2152 mlx5e_build_common_cq_param(priv, param);
2154 param->cq_period_mode = NET_DIM_CQ_PERIOD_MODE_START_FROM_EQE;
2157 static void mlx5e_build_icosq_param(struct mlx5e_priv *priv,
2159 struct mlx5e_sq_param *param)
2161 void *sqc = param->sqc;
2162 void *wq = MLX5_ADDR_OF(sqc, sqc, wq);
2164 mlx5e_build_sq_param_common(priv, param);
2166 MLX5_SET(wq, wq, log_wq_sz, log_wq_size);
2167 MLX5_SET(sqc, sqc, reg_umr, MLX5_CAP_ETH(priv->mdev, reg_umr_sq));
2170 static void mlx5e_build_xdpsq_param(struct mlx5e_priv *priv,
2171 struct mlx5e_params *params,
2172 struct mlx5e_sq_param *param)
2174 void *sqc = param->sqc;
2175 void *wq = MLX5_ADDR_OF(sqc, sqc, wq);
2177 mlx5e_build_sq_param_common(priv, param);
2178 MLX5_SET(wq, wq, log_wq_sz, params->log_sq_size);
2179 param->is_mpw = MLX5E_GET_PFLAG(params, MLX5E_PFLAG_XDP_TX_MPWQE);
2182 static u8 mlx5e_build_icosq_log_wq_sz(struct mlx5e_params *params,
2183 struct mlx5e_rq_param *rqp)
2185 switch (params->rq_wq_type) {
2186 case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ:
2187 return order_base_2(MLX5E_UMR_WQEBBS) +
2188 mlx5e_get_rq_log_wq_sz(rqp->rqc);
2189 default: /* MLX5_WQ_TYPE_CYCLIC */
2190 return MLX5E_PARAMS_MINIMUM_LOG_SQ_SIZE;
2194 static void mlx5e_build_channel_param(struct mlx5e_priv *priv,
2195 struct mlx5e_params *params,
2196 struct mlx5e_channel_param *cparam)
2200 mlx5e_build_rq_param(priv, params, &cparam->rq);
2202 icosq_log_wq_sz = mlx5e_build_icosq_log_wq_sz(params, &cparam->rq);
2204 mlx5e_build_sq_param(priv, params, &cparam->sq);
2205 mlx5e_build_xdpsq_param(priv, params, &cparam->xdp_sq);
2206 mlx5e_build_icosq_param(priv, icosq_log_wq_sz, &cparam->icosq);
2207 mlx5e_build_rx_cq_param(priv, params, &cparam->rx_cq);
2208 mlx5e_build_tx_cq_param(priv, params, &cparam->tx_cq);
2209 mlx5e_build_ico_cq_param(priv, icosq_log_wq_sz, &cparam->icosq_cq);
2212 int mlx5e_open_channels(struct mlx5e_priv *priv,
2213 struct mlx5e_channels *chs)
2215 struct mlx5e_channel_param *cparam;
2219 chs->num = chs->params.num_channels;
2221 chs->c = kcalloc(chs->num, sizeof(struct mlx5e_channel *), GFP_KERNEL);
2222 cparam = kvzalloc(sizeof(struct mlx5e_channel_param), GFP_KERNEL);
2223 if (!chs->c || !cparam)
2226 mlx5e_build_channel_param(priv, &chs->params, cparam);
2227 for (i = 0; i < chs->num; i++) {
2228 err = mlx5e_open_channel(priv, i, &chs->params, cparam, &chs->c[i]);
2230 goto err_close_channels;
2233 if (!IS_ERR_OR_NULL(priv->tx_reporter))
2234 devlink_health_reporter_state_update(priv->tx_reporter,
2235 DEVLINK_HEALTH_REPORTER_STATE_HEALTHY);
2241 for (i--; i >= 0; i--)
2242 mlx5e_close_channel(chs->c[i]);
2251 static void mlx5e_activate_channels(struct mlx5e_channels *chs)
2255 for (i = 0; i < chs->num; i++)
2256 mlx5e_activate_channel(chs->c[i]);
2259 #define MLX5E_RQ_WQES_TIMEOUT 20000 /* msecs */
2261 static int mlx5e_wait_channels_min_rx_wqes(struct mlx5e_channels *chs)
2266 for (i = 0; i < chs->num; i++) {
2267 int timeout = err ? 0 : MLX5E_RQ_WQES_TIMEOUT;
2269 err |= mlx5e_wait_for_min_rx_wqes(&chs->c[i]->rq, timeout);
2272 return err ? -ETIMEDOUT : 0;
2275 static void mlx5e_deactivate_channels(struct mlx5e_channels *chs)
2279 for (i = 0; i < chs->num; i++)
2280 mlx5e_deactivate_channel(chs->c[i]);
2283 void mlx5e_close_channels(struct mlx5e_channels *chs)
2287 for (i = 0; i < chs->num; i++)
2288 mlx5e_close_channel(chs->c[i]);
2295 mlx5e_create_rqt(struct mlx5e_priv *priv, int sz, struct mlx5e_rqt *rqt)
2297 struct mlx5_core_dev *mdev = priv->mdev;
2304 inlen = MLX5_ST_SZ_BYTES(create_rqt_in) + sizeof(u32) * sz;
2305 in = kvzalloc(inlen, GFP_KERNEL);
2309 rqtc = MLX5_ADDR_OF(create_rqt_in, in, rqt_context);
2311 MLX5_SET(rqtc, rqtc, rqt_actual_size, sz);
2312 MLX5_SET(rqtc, rqtc, rqt_max_size, sz);
2314 for (i = 0; i < sz; i++)
2315 MLX5_SET(rqtc, rqtc, rq_num[i], priv->drop_rq.rqn);
2317 err = mlx5_core_create_rqt(mdev, in, inlen, &rqt->rqtn);
2319 rqt->enabled = true;
2325 void mlx5e_destroy_rqt(struct mlx5e_priv *priv, struct mlx5e_rqt *rqt)
2327 rqt->enabled = false;
2328 mlx5_core_destroy_rqt(priv->mdev, rqt->rqtn);
2331 int mlx5e_create_indirect_rqt(struct mlx5e_priv *priv)
2333 struct mlx5e_rqt *rqt = &priv->indir_rqt;
2336 err = mlx5e_create_rqt(priv, MLX5E_INDIR_RQT_SIZE, rqt);
2338 mlx5_core_warn(priv->mdev, "create indirect rqts failed, %d\n", err);
2342 int mlx5e_create_direct_rqts(struct mlx5e_priv *priv)
2344 struct mlx5e_rqt *rqt;
2348 for (ix = 0; ix < mlx5e_get_netdev_max_channels(priv->netdev); ix++) {
2349 rqt = &priv->direct_tir[ix].rqt;
2350 err = mlx5e_create_rqt(priv, 1 /*size */, rqt);
2352 goto err_destroy_rqts;
2358 mlx5_core_warn(priv->mdev, "create direct rqts failed, %d\n", err);
2359 for (ix--; ix >= 0; ix--)
2360 mlx5e_destroy_rqt(priv, &priv->direct_tir[ix].rqt);
2365 void mlx5e_destroy_direct_rqts(struct mlx5e_priv *priv)
2369 for (i = 0; i < mlx5e_get_netdev_max_channels(priv->netdev); i++)
2370 mlx5e_destroy_rqt(priv, &priv->direct_tir[i].rqt);
2373 static int mlx5e_rx_hash_fn(int hfunc)
2375 return (hfunc == ETH_RSS_HASH_TOP) ?
2376 MLX5_RX_HASH_FN_TOEPLITZ :
2377 MLX5_RX_HASH_FN_INVERTED_XOR8;
2380 int mlx5e_bits_invert(unsigned long a, int size)
2385 for (i = 0; i < size; i++)
2386 inv |= (test_bit(size - i - 1, &a) ? 1 : 0) << i;
2391 static void mlx5e_fill_rqt_rqns(struct mlx5e_priv *priv, int sz,
2392 struct mlx5e_redirect_rqt_param rrp, void *rqtc)
2396 for (i = 0; i < sz; i++) {
2402 if (rrp.rss.hfunc == ETH_RSS_HASH_XOR)
2403 ix = mlx5e_bits_invert(i, ilog2(sz));
2405 ix = priv->rss_params.indirection_rqt[ix];
2406 rqn = rrp.rss.channels->c[ix]->rq.rqn;
2410 MLX5_SET(rqtc, rqtc, rq_num[i], rqn);
2414 int mlx5e_redirect_rqt(struct mlx5e_priv *priv, u32 rqtn, int sz,
2415 struct mlx5e_redirect_rqt_param rrp)
2417 struct mlx5_core_dev *mdev = priv->mdev;
2423 inlen = MLX5_ST_SZ_BYTES(modify_rqt_in) + sizeof(u32) * sz;
2424 in = kvzalloc(inlen, GFP_KERNEL);
2428 rqtc = MLX5_ADDR_OF(modify_rqt_in, in, ctx);
2430 MLX5_SET(rqtc, rqtc, rqt_actual_size, sz);
2431 MLX5_SET(modify_rqt_in, in, bitmask.rqn_list, 1);
2432 mlx5e_fill_rqt_rqns(priv, sz, rrp, rqtc);
2433 err = mlx5_core_modify_rqt(mdev, rqtn, in, inlen);
2439 static u32 mlx5e_get_direct_rqn(struct mlx5e_priv *priv, int ix,
2440 struct mlx5e_redirect_rqt_param rrp)
2445 if (ix >= rrp.rss.channels->num)
2446 return priv->drop_rq.rqn;
2448 return rrp.rss.channels->c[ix]->rq.rqn;
2451 static void mlx5e_redirect_rqts(struct mlx5e_priv *priv,
2452 struct mlx5e_redirect_rqt_param rrp)
2457 if (priv->indir_rqt.enabled) {
2459 rqtn = priv->indir_rqt.rqtn;
2460 mlx5e_redirect_rqt(priv, rqtn, MLX5E_INDIR_RQT_SIZE, rrp);
2463 for (ix = 0; ix < mlx5e_get_netdev_max_channels(priv->netdev); ix++) {
2464 struct mlx5e_redirect_rqt_param direct_rrp = {
2467 .rqn = mlx5e_get_direct_rqn(priv, ix, rrp)
2471 /* Direct RQ Tables */
2472 if (!priv->direct_tir[ix].rqt.enabled)
2475 rqtn = priv->direct_tir[ix].rqt.rqtn;
2476 mlx5e_redirect_rqt(priv, rqtn, 1, direct_rrp);
2480 static void mlx5e_redirect_rqts_to_channels(struct mlx5e_priv *priv,
2481 struct mlx5e_channels *chs)
2483 struct mlx5e_redirect_rqt_param rrp = {
2488 .hfunc = priv->rss_params.hfunc,
2493 mlx5e_redirect_rqts(priv, rrp);
2496 static void mlx5e_redirect_rqts_to_drop(struct mlx5e_priv *priv)
2498 struct mlx5e_redirect_rqt_param drop_rrp = {
2501 .rqn = priv->drop_rq.rqn,
2505 mlx5e_redirect_rqts(priv, drop_rrp);
2508 static const struct mlx5e_tirc_config tirc_default_config[MLX5E_NUM_INDIR_TIRS] = {
2509 [MLX5E_TT_IPV4_TCP] = { .l3_prot_type = MLX5_L3_PROT_TYPE_IPV4,
2510 .l4_prot_type = MLX5_L4_PROT_TYPE_TCP,
2511 .rx_hash_fields = MLX5_HASH_IP_L4PORTS,
2513 [MLX5E_TT_IPV6_TCP] = { .l3_prot_type = MLX5_L3_PROT_TYPE_IPV6,
2514 .l4_prot_type = MLX5_L4_PROT_TYPE_TCP,
2515 .rx_hash_fields = MLX5_HASH_IP_L4PORTS,
2517 [MLX5E_TT_IPV4_UDP] = { .l3_prot_type = MLX5_L3_PROT_TYPE_IPV4,
2518 .l4_prot_type = MLX5_L4_PROT_TYPE_UDP,
2519 .rx_hash_fields = MLX5_HASH_IP_L4PORTS,
2521 [MLX5E_TT_IPV6_UDP] = { .l3_prot_type = MLX5_L3_PROT_TYPE_IPV6,
2522 .l4_prot_type = MLX5_L4_PROT_TYPE_UDP,
2523 .rx_hash_fields = MLX5_HASH_IP_L4PORTS,
2525 [MLX5E_TT_IPV4_IPSEC_AH] = { .l3_prot_type = MLX5_L3_PROT_TYPE_IPV4,
2527 .rx_hash_fields = MLX5_HASH_IP_IPSEC_SPI,
2529 [MLX5E_TT_IPV6_IPSEC_AH] = { .l3_prot_type = MLX5_L3_PROT_TYPE_IPV6,
2531 .rx_hash_fields = MLX5_HASH_IP_IPSEC_SPI,
2533 [MLX5E_TT_IPV4_IPSEC_ESP] = { .l3_prot_type = MLX5_L3_PROT_TYPE_IPV4,
2535 .rx_hash_fields = MLX5_HASH_IP_IPSEC_SPI,
2537 [MLX5E_TT_IPV6_IPSEC_ESP] = { .l3_prot_type = MLX5_L3_PROT_TYPE_IPV6,
2539 .rx_hash_fields = MLX5_HASH_IP_IPSEC_SPI,
2541 [MLX5E_TT_IPV4] = { .l3_prot_type = MLX5_L3_PROT_TYPE_IPV4,
2543 .rx_hash_fields = MLX5_HASH_IP,
2545 [MLX5E_TT_IPV6] = { .l3_prot_type = MLX5_L3_PROT_TYPE_IPV6,
2547 .rx_hash_fields = MLX5_HASH_IP,
2551 struct mlx5e_tirc_config mlx5e_tirc_get_default_config(enum mlx5e_traffic_types tt)
2553 return tirc_default_config[tt];
2556 static void mlx5e_build_tir_ctx_lro(struct mlx5e_params *params, void *tirc)
2558 if (!params->lro_en)
2561 #define ROUGH_MAX_L2_L3_HDR_SZ 256
2563 MLX5_SET(tirc, tirc, lro_enable_mask,
2564 MLX5_TIRC_LRO_ENABLE_MASK_IPV4_LRO |
2565 MLX5_TIRC_LRO_ENABLE_MASK_IPV6_LRO);
2566 MLX5_SET(tirc, tirc, lro_max_ip_payload_size,
2567 (MLX5E_PARAMS_DEFAULT_LRO_WQE_SZ - ROUGH_MAX_L2_L3_HDR_SZ) >> 8);
2568 MLX5_SET(tirc, tirc, lro_timeout_period_usecs, params->lro_timeout);
2571 void mlx5e_build_indir_tir_ctx_hash(struct mlx5e_rss_params *rss_params,
2572 const struct mlx5e_tirc_config *ttconfig,
2573 void *tirc, bool inner)
2575 void *hfso = inner ? MLX5_ADDR_OF(tirc, tirc, rx_hash_field_selector_inner) :
2576 MLX5_ADDR_OF(tirc, tirc, rx_hash_field_selector_outer);
2578 MLX5_SET(tirc, tirc, rx_hash_fn, mlx5e_rx_hash_fn(rss_params->hfunc));
2579 if (rss_params->hfunc == ETH_RSS_HASH_TOP) {
2580 void *rss_key = MLX5_ADDR_OF(tirc, tirc,
2581 rx_hash_toeplitz_key);
2582 size_t len = MLX5_FLD_SZ_BYTES(tirc,
2583 rx_hash_toeplitz_key);
2585 MLX5_SET(tirc, tirc, rx_hash_symmetric, 1);
2586 memcpy(rss_key, rss_params->toeplitz_hash_key, len);
2588 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
2589 ttconfig->l3_prot_type);
2590 MLX5_SET(rx_hash_field_select, hfso, l4_prot_type,
2591 ttconfig->l4_prot_type);
2592 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
2593 ttconfig->rx_hash_fields);
2596 static void mlx5e_update_rx_hash_fields(struct mlx5e_tirc_config *ttconfig,
2597 enum mlx5e_traffic_types tt,
2600 *ttconfig = tirc_default_config[tt];
2601 ttconfig->rx_hash_fields = rx_hash_fields;
2604 void mlx5e_modify_tirs_hash(struct mlx5e_priv *priv, void *in, int inlen)
2606 void *tirc = MLX5_ADDR_OF(modify_tir_in, in, ctx);
2607 struct mlx5e_rss_params *rss = &priv->rss_params;
2608 struct mlx5_core_dev *mdev = priv->mdev;
2609 int ctxlen = MLX5_ST_SZ_BYTES(tirc);
2610 struct mlx5e_tirc_config ttconfig;
2613 MLX5_SET(modify_tir_in, in, bitmask.hash, 1);
2615 for (tt = 0; tt < MLX5E_NUM_INDIR_TIRS; tt++) {
2616 memset(tirc, 0, ctxlen);
2617 mlx5e_update_rx_hash_fields(&ttconfig, tt,
2618 rss->rx_hash_fields[tt]);
2619 mlx5e_build_indir_tir_ctx_hash(rss, &ttconfig, tirc, false);
2620 mlx5_core_modify_tir(mdev, priv->indir_tir[tt].tirn, in, inlen);
2623 if (!mlx5e_tunnel_inner_ft_supported(priv->mdev))
2626 for (tt = 0; tt < MLX5E_NUM_INDIR_TIRS; tt++) {
2627 memset(tirc, 0, ctxlen);
2628 mlx5e_update_rx_hash_fields(&ttconfig, tt,
2629 rss->rx_hash_fields[tt]);
2630 mlx5e_build_indir_tir_ctx_hash(rss, &ttconfig, tirc, true);
2631 mlx5_core_modify_tir(mdev, priv->inner_indir_tir[tt].tirn, in,
2636 static int mlx5e_modify_tirs_lro(struct mlx5e_priv *priv)
2638 struct mlx5_core_dev *mdev = priv->mdev;
2647 inlen = MLX5_ST_SZ_BYTES(modify_tir_in);
2648 in = kvzalloc(inlen, GFP_KERNEL);
2652 MLX5_SET(modify_tir_in, in, bitmask.lro, 1);
2653 tirc = MLX5_ADDR_OF(modify_tir_in, in, ctx);
2655 mlx5e_build_tir_ctx_lro(&priv->channels.params, tirc);
2657 for (tt = 0; tt < MLX5E_NUM_INDIR_TIRS; tt++) {
2658 err = mlx5_core_modify_tir(mdev, priv->indir_tir[tt].tirn, in,
2664 for (ix = 0; ix < mlx5e_get_netdev_max_channels(priv->netdev); ix++) {
2665 err = mlx5_core_modify_tir(mdev, priv->direct_tir[ix].tirn,
2677 static void mlx5e_build_inner_indir_tir_ctx(struct mlx5e_priv *priv,
2678 enum mlx5e_traffic_types tt,
2681 MLX5_SET(tirc, tirc, transport_domain, priv->mdev->mlx5e_res.td.tdn);
2683 mlx5e_build_tir_ctx_lro(&priv->channels.params, tirc);
2685 MLX5_SET(tirc, tirc, disp_type, MLX5_TIRC_DISP_TYPE_INDIRECT);
2686 MLX5_SET(tirc, tirc, indirect_table, priv->indir_rqt.rqtn);
2687 MLX5_SET(tirc, tirc, tunneled_offload_en, 0x1);
2689 mlx5e_build_indir_tir_ctx_hash(&priv->rss_params,
2690 &tirc_default_config[tt], tirc, true);
2693 static int mlx5e_set_mtu(struct mlx5_core_dev *mdev,
2694 struct mlx5e_params *params, u16 mtu)
2696 u16 hw_mtu = MLX5E_SW2HW_MTU(params, mtu);
2699 err = mlx5_set_port_mtu(mdev, hw_mtu, 1);
2703 /* Update vport context MTU */
2704 mlx5_modify_nic_vport_mtu(mdev, hw_mtu);
2708 static void mlx5e_query_mtu(struct mlx5_core_dev *mdev,
2709 struct mlx5e_params *params, u16 *mtu)
2714 err = mlx5_query_nic_vport_mtu(mdev, &hw_mtu);
2715 if (err || !hw_mtu) /* fallback to port oper mtu */
2716 mlx5_query_port_oper_mtu(mdev, &hw_mtu, 1);
2718 *mtu = MLX5E_HW2SW_MTU(params, hw_mtu);
2721 int mlx5e_set_dev_port_mtu(struct mlx5e_priv *priv)
2723 struct mlx5e_params *params = &priv->channels.params;
2724 struct net_device *netdev = priv->netdev;
2725 struct mlx5_core_dev *mdev = priv->mdev;
2729 err = mlx5e_set_mtu(mdev, params, params->sw_mtu);
2733 mlx5e_query_mtu(mdev, params, &mtu);
2734 if (mtu != params->sw_mtu)
2735 netdev_warn(netdev, "%s: VPort MTU %d is different than netdev mtu %d\n",
2736 __func__, mtu, params->sw_mtu);
2738 params->sw_mtu = mtu;
2742 void mlx5e_set_netdev_mtu_boundaries(struct mlx5e_priv *priv)
2744 struct mlx5e_params *params = &priv->channels.params;
2745 struct net_device *netdev = priv->netdev;
2746 struct mlx5_core_dev *mdev = priv->mdev;
2749 /* MTU range: 68 - hw-specific max */
2750 netdev->min_mtu = ETH_MIN_MTU;
2752 mlx5_query_port_max_mtu(mdev, &max_mtu, 1);
2753 netdev->max_mtu = min_t(unsigned int, MLX5E_HW2SW_MTU(params, max_mtu),
2757 static void mlx5e_netdev_set_tcs(struct net_device *netdev)
2759 struct mlx5e_priv *priv = netdev_priv(netdev);
2760 int nch = priv->channels.params.num_channels;
2761 int ntc = priv->channels.params.num_tc;
2764 netdev_reset_tc(netdev);
2769 netdev_set_num_tc(netdev, ntc);
2771 /* Map netdev TCs to offset 0
2772 * We have our own UP to TXQ mapping for QoS
2774 for (tc = 0; tc < ntc; tc++)
2775 netdev_set_tc_queue(netdev, tc, nch, 0);
2778 static void mlx5e_build_tc2txq_maps(struct mlx5e_priv *priv)
2780 int max_nch = mlx5e_get_netdev_max_channels(priv->netdev);
2783 for (i = 0; i < max_nch; i++)
2784 for (tc = 0; tc < priv->profile->max_tc; tc++)
2785 priv->channel_tc2txq[i][tc] = i + tc * max_nch;
2788 static void mlx5e_build_tx2sq_maps(struct mlx5e_priv *priv)
2790 struct mlx5e_channel *c;
2791 struct mlx5e_txqsq *sq;
2794 for (i = 0; i < priv->channels.num; i++) {
2795 c = priv->channels.c[i];
2796 for (tc = 0; tc < c->num_tc; tc++) {
2798 priv->txq2sq[sq->txq_ix] = sq;
2803 void mlx5e_activate_priv_channels(struct mlx5e_priv *priv)
2805 int num_txqs = priv->channels.num * priv->channels.params.num_tc;
2806 struct net_device *netdev = priv->netdev;
2808 mlx5e_netdev_set_tcs(netdev);
2809 netif_set_real_num_tx_queues(netdev, num_txqs);
2810 netif_set_real_num_rx_queues(netdev, priv->channels.num);
2812 mlx5e_build_tx2sq_maps(priv);
2813 mlx5e_activate_channels(&priv->channels);
2814 mlx5e_xdp_tx_enable(priv);
2815 netif_tx_start_all_queues(priv->netdev);
2817 if (mlx5e_is_vport_rep(priv))
2818 mlx5e_add_sqs_fwd_rules(priv);
2820 mlx5e_wait_channels_min_rx_wqes(&priv->channels);
2821 mlx5e_redirect_rqts_to_channels(priv, &priv->channels);
2824 void mlx5e_deactivate_priv_channels(struct mlx5e_priv *priv)
2826 mlx5e_redirect_rqts_to_drop(priv);
2828 if (mlx5e_is_vport_rep(priv))
2829 mlx5e_remove_sqs_fwd_rules(priv);
2831 /* FIXME: This is a W/A only for tx timeout watch dog false alarm when
2832 * polling for inactive tx queues.
2834 netif_tx_stop_all_queues(priv->netdev);
2835 netif_tx_disable(priv->netdev);
2836 mlx5e_xdp_tx_disable(priv);
2837 mlx5e_deactivate_channels(&priv->channels);
2840 static void mlx5e_switch_priv_channels(struct mlx5e_priv *priv,
2841 struct mlx5e_channels *new_chs,
2842 mlx5e_fp_hw_modify hw_modify)
2844 struct net_device *netdev = priv->netdev;
2848 new_num_txqs = new_chs->num * new_chs->params.num_tc;
2850 carrier_ok = netif_carrier_ok(netdev);
2851 netif_carrier_off(netdev);
2853 if (new_num_txqs < netdev->real_num_tx_queues)
2854 netif_set_real_num_tx_queues(netdev, new_num_txqs);
2856 mlx5e_deactivate_priv_channels(priv);
2857 mlx5e_close_channels(&priv->channels);
2859 priv->channels = *new_chs;
2861 /* New channels are ready to roll, modify HW settings if needed */
2865 mlx5e_refresh_tirs(priv, false);
2866 mlx5e_activate_priv_channels(priv);
2868 /* return carrier back if needed */
2870 netif_carrier_on(netdev);
2873 int mlx5e_safe_switch_channels(struct mlx5e_priv *priv,
2874 struct mlx5e_channels *new_chs,
2875 mlx5e_fp_hw_modify hw_modify)
2879 err = mlx5e_open_channels(priv, new_chs);
2883 mlx5e_switch_priv_channels(priv, new_chs, hw_modify);
2887 int mlx5e_safe_reopen_channels(struct mlx5e_priv *priv)
2889 struct mlx5e_channels new_channels = {};
2891 new_channels.params = priv->channels.params;
2892 return mlx5e_safe_switch_channels(priv, &new_channels, NULL);
2895 void mlx5e_timestamp_init(struct mlx5e_priv *priv)
2897 priv->tstamp.tx_type = HWTSTAMP_TX_OFF;
2898 priv->tstamp.rx_filter = HWTSTAMP_FILTER_NONE;
2901 int mlx5e_open_locked(struct net_device *netdev)
2903 struct mlx5e_priv *priv = netdev_priv(netdev);
2906 set_bit(MLX5E_STATE_OPENED, &priv->state);
2908 err = mlx5e_open_channels(priv, &priv->channels);
2910 goto err_clear_state_opened_flag;
2912 mlx5e_refresh_tirs(priv, false);
2913 mlx5e_activate_priv_channels(priv);
2914 if (priv->profile->update_carrier)
2915 priv->profile->update_carrier(priv);
2917 mlx5e_queue_update_stats(priv);
2920 err_clear_state_opened_flag:
2921 clear_bit(MLX5E_STATE_OPENED, &priv->state);
2925 int mlx5e_open(struct net_device *netdev)
2927 struct mlx5e_priv *priv = netdev_priv(netdev);
2930 mutex_lock(&priv->state_lock);
2931 err = mlx5e_open_locked(netdev);
2933 mlx5_set_port_admin_status(priv->mdev, MLX5_PORT_UP);
2934 mutex_unlock(&priv->state_lock);
2936 if (mlx5_vxlan_allowed(priv->mdev->vxlan))
2937 udp_tunnel_get_rx_info(netdev);
2942 int mlx5e_close_locked(struct net_device *netdev)
2944 struct mlx5e_priv *priv = netdev_priv(netdev);
2946 /* May already be CLOSED in case a previous configuration operation
2947 * (e.g RX/TX queue size change) that involves close&open failed.
2949 if (!test_bit(MLX5E_STATE_OPENED, &priv->state))
2952 clear_bit(MLX5E_STATE_OPENED, &priv->state);
2954 netif_carrier_off(priv->netdev);
2955 mlx5e_deactivate_priv_channels(priv);
2956 mlx5e_close_channels(&priv->channels);
2961 int mlx5e_close(struct net_device *netdev)
2963 struct mlx5e_priv *priv = netdev_priv(netdev);
2966 if (!netif_device_present(netdev))
2969 mutex_lock(&priv->state_lock);
2970 mlx5_set_port_admin_status(priv->mdev, MLX5_PORT_DOWN);
2971 err = mlx5e_close_locked(netdev);
2972 mutex_unlock(&priv->state_lock);
2977 static int mlx5e_alloc_drop_rq(struct mlx5_core_dev *mdev,
2978 struct mlx5e_rq *rq,
2979 struct mlx5e_rq_param *param)
2981 void *rqc = param->rqc;
2982 void *rqc_wq = MLX5_ADDR_OF(rqc, rqc, wq);
2985 param->wq.db_numa_node = param->wq.buf_numa_node;
2987 err = mlx5_wq_cyc_create(mdev, ¶m->wq, rqc_wq, &rq->wqe.wq,
2992 /* Mark as unused given "Drop-RQ" packets never reach XDP */
2993 xdp_rxq_info_unused(&rq->xdp_rxq);
3000 static int mlx5e_alloc_drop_cq(struct mlx5_core_dev *mdev,
3001 struct mlx5e_cq *cq,
3002 struct mlx5e_cq_param *param)
3004 param->wq.buf_numa_node = dev_to_node(&mdev->pdev->dev);
3005 param->wq.db_numa_node = dev_to_node(&mdev->pdev->dev);
3007 return mlx5e_alloc_cq_common(mdev, param, cq);
3010 int mlx5e_open_drop_rq(struct mlx5e_priv *priv,
3011 struct mlx5e_rq *drop_rq)
3013 struct mlx5_core_dev *mdev = priv->mdev;
3014 struct mlx5e_cq_param cq_param = {};
3015 struct mlx5e_rq_param rq_param = {};
3016 struct mlx5e_cq *cq = &drop_rq->cq;
3019 mlx5e_build_drop_rq_param(priv, &rq_param);
3021 err = mlx5e_alloc_drop_cq(mdev, cq, &cq_param);
3025 err = mlx5e_create_cq(cq, &cq_param);
3029 err = mlx5e_alloc_drop_rq(mdev, drop_rq, &rq_param);
3031 goto err_destroy_cq;
3033 err = mlx5e_create_rq(drop_rq, &rq_param);
3037 err = mlx5e_modify_rq_state(drop_rq, MLX5_RQC_STATE_RST, MLX5_RQC_STATE_RDY);
3039 mlx5_core_warn(priv->mdev, "modify_rq_state failed, rx_if_down_packets won't be counted %d\n", err);
3044 mlx5e_free_rq(drop_rq);
3047 mlx5e_destroy_cq(cq);
3055 void mlx5e_close_drop_rq(struct mlx5e_rq *drop_rq)
3057 mlx5e_destroy_rq(drop_rq);
3058 mlx5e_free_rq(drop_rq);
3059 mlx5e_destroy_cq(&drop_rq->cq);
3060 mlx5e_free_cq(&drop_rq->cq);
3063 int mlx5e_create_tis(struct mlx5_core_dev *mdev, int tc,
3064 u32 underlay_qpn, u32 *tisn)
3066 u32 in[MLX5_ST_SZ_DW(create_tis_in)] = {0};
3067 void *tisc = MLX5_ADDR_OF(create_tis_in, in, ctx);
3069 MLX5_SET(tisc, tisc, prio, tc << 1);
3070 MLX5_SET(tisc, tisc, underlay_qpn, underlay_qpn);
3071 MLX5_SET(tisc, tisc, transport_domain, mdev->mlx5e_res.td.tdn);
3073 if (mlx5_lag_is_lacp_owner(mdev))
3074 MLX5_SET(tisc, tisc, strict_lag_tx_port_affinity, 1);
3076 return mlx5_core_create_tis(mdev, in, sizeof(in), tisn);
3079 void mlx5e_destroy_tis(struct mlx5_core_dev *mdev, u32 tisn)
3081 mlx5_core_destroy_tis(mdev, tisn);
3084 int mlx5e_create_tises(struct mlx5e_priv *priv)
3089 for (tc = 0; tc < priv->profile->max_tc; tc++) {
3090 err = mlx5e_create_tis(priv->mdev, tc, 0, &priv->tisn[tc]);
3092 goto err_close_tises;
3098 for (tc--; tc >= 0; tc--)
3099 mlx5e_destroy_tis(priv->mdev, priv->tisn[tc]);
3104 static void mlx5e_cleanup_nic_tx(struct mlx5e_priv *priv)
3108 mlx5e_tx_reporter_destroy(priv);
3109 for (tc = 0; tc < priv->profile->max_tc; tc++)
3110 mlx5e_destroy_tis(priv->mdev, priv->tisn[tc]);
3113 static void mlx5e_build_indir_tir_ctx(struct mlx5e_priv *priv,
3114 enum mlx5e_traffic_types tt,
3117 MLX5_SET(tirc, tirc, transport_domain, priv->mdev->mlx5e_res.td.tdn);
3119 mlx5e_build_tir_ctx_lro(&priv->channels.params, tirc);
3121 MLX5_SET(tirc, tirc, disp_type, MLX5_TIRC_DISP_TYPE_INDIRECT);
3122 MLX5_SET(tirc, tirc, indirect_table, priv->indir_rqt.rqtn);
3124 mlx5e_build_indir_tir_ctx_hash(&priv->rss_params,
3125 &tirc_default_config[tt], tirc, false);
3128 static void mlx5e_build_direct_tir_ctx(struct mlx5e_priv *priv, u32 rqtn, u32 *tirc)
3130 MLX5_SET(tirc, tirc, transport_domain, priv->mdev->mlx5e_res.td.tdn);
3132 mlx5e_build_tir_ctx_lro(&priv->channels.params, tirc);
3134 MLX5_SET(tirc, tirc, disp_type, MLX5_TIRC_DISP_TYPE_INDIRECT);
3135 MLX5_SET(tirc, tirc, indirect_table, rqtn);
3136 MLX5_SET(tirc, tirc, rx_hash_fn, MLX5_RX_HASH_FN_INVERTED_XOR8);
3139 int mlx5e_create_indirect_tirs(struct mlx5e_priv *priv, bool inner_ttc)
3141 struct mlx5e_tir *tir;
3149 inlen = MLX5_ST_SZ_BYTES(create_tir_in);
3150 in = kvzalloc(inlen, GFP_KERNEL);
3154 for (tt = 0; tt < MLX5E_NUM_INDIR_TIRS; tt++) {
3155 memset(in, 0, inlen);
3156 tir = &priv->indir_tir[tt];
3157 tirc = MLX5_ADDR_OF(create_tir_in, in, ctx);
3158 mlx5e_build_indir_tir_ctx(priv, tt, tirc);
3159 err = mlx5e_create_tir(priv->mdev, tir, in, inlen);
3161 mlx5_core_warn(priv->mdev, "create indirect tirs failed, %d\n", err);
3162 goto err_destroy_inner_tirs;
3166 if (!inner_ttc || !mlx5e_tunnel_inner_ft_supported(priv->mdev))
3169 for (i = 0; i < MLX5E_NUM_INDIR_TIRS; i++) {
3170 memset(in, 0, inlen);
3171 tir = &priv->inner_indir_tir[i];
3172 tirc = MLX5_ADDR_OF(create_tir_in, in, ctx);
3173 mlx5e_build_inner_indir_tir_ctx(priv, i, tirc);
3174 err = mlx5e_create_tir(priv->mdev, tir, in, inlen);
3176 mlx5_core_warn(priv->mdev, "create inner indirect tirs failed, %d\n", err);
3177 goto err_destroy_inner_tirs;
3186 err_destroy_inner_tirs:
3187 for (i--; i >= 0; i--)
3188 mlx5e_destroy_tir(priv->mdev, &priv->inner_indir_tir[i]);
3190 for (tt--; tt >= 0; tt--)
3191 mlx5e_destroy_tir(priv->mdev, &priv->indir_tir[tt]);
3198 int mlx5e_create_direct_tirs(struct mlx5e_priv *priv)
3200 int nch = mlx5e_get_netdev_max_channels(priv->netdev);
3201 struct mlx5e_tir *tir;
3208 inlen = MLX5_ST_SZ_BYTES(create_tir_in);
3209 in = kvzalloc(inlen, GFP_KERNEL);
3213 for (ix = 0; ix < nch; ix++) {
3214 memset(in, 0, inlen);
3215 tir = &priv->direct_tir[ix];
3216 tirc = MLX5_ADDR_OF(create_tir_in, in, ctx);
3217 mlx5e_build_direct_tir_ctx(priv, priv->direct_tir[ix].rqt.rqtn, tirc);
3218 err = mlx5e_create_tir(priv->mdev, tir, in, inlen);
3220 goto err_destroy_ch_tirs;
3227 err_destroy_ch_tirs:
3228 mlx5_core_warn(priv->mdev, "create direct tirs failed, %d\n", err);
3229 for (ix--; ix >= 0; ix--)
3230 mlx5e_destroy_tir(priv->mdev, &priv->direct_tir[ix]);
3237 void mlx5e_destroy_indirect_tirs(struct mlx5e_priv *priv, bool inner_ttc)
3241 for (i = 0; i < MLX5E_NUM_INDIR_TIRS; i++)
3242 mlx5e_destroy_tir(priv->mdev, &priv->indir_tir[i]);
3244 if (!inner_ttc || !mlx5e_tunnel_inner_ft_supported(priv->mdev))
3247 for (i = 0; i < MLX5E_NUM_INDIR_TIRS; i++)
3248 mlx5e_destroy_tir(priv->mdev, &priv->inner_indir_tir[i]);
3251 void mlx5e_destroy_direct_tirs(struct mlx5e_priv *priv)
3253 int nch = mlx5e_get_netdev_max_channels(priv->netdev);
3256 for (i = 0; i < nch; i++)
3257 mlx5e_destroy_tir(priv->mdev, &priv->direct_tir[i]);
3260 static int mlx5e_modify_channels_scatter_fcs(struct mlx5e_channels *chs, bool enable)
3265 for (i = 0; i < chs->num; i++) {
3266 err = mlx5e_modify_rq_scatter_fcs(&chs->c[i]->rq, enable);
3274 static int mlx5e_modify_channels_vsd(struct mlx5e_channels *chs, bool vsd)
3279 for (i = 0; i < chs->num; i++) {
3280 err = mlx5e_modify_rq_vsd(&chs->c[i]->rq, vsd);
3288 static int mlx5e_setup_tc_mqprio(struct net_device *netdev,
3289 struct tc_mqprio_qopt *mqprio)
3291 struct mlx5e_priv *priv = netdev_priv(netdev);
3292 struct mlx5e_channels new_channels = {};
3293 u8 tc = mqprio->num_tc;
3296 mqprio->hw = TC_MQPRIO_HW_OFFLOAD_TCS;
3298 if (tc && tc != MLX5E_MAX_NUM_TC)
3301 mutex_lock(&priv->state_lock);
3303 new_channels.params = priv->channels.params;
3304 new_channels.params.num_tc = tc ? tc : 1;
3306 if (!test_bit(MLX5E_STATE_OPENED, &priv->state)) {
3307 priv->channels.params = new_channels.params;
3311 err = mlx5e_safe_switch_channels(priv, &new_channels, NULL);
3315 priv->max_opened_tc = max_t(u8, priv->max_opened_tc,
3316 new_channels.params.num_tc);
3318 mutex_unlock(&priv->state_lock);
3322 #ifdef CONFIG_MLX5_ESWITCH
3323 static int mlx5e_setup_tc_cls_flower(struct mlx5e_priv *priv,
3324 struct tc_cls_flower_offload *cls_flower,
3327 switch (cls_flower->command) {
3328 case TC_CLSFLOWER_REPLACE:
3329 return mlx5e_configure_flower(priv->netdev, priv, cls_flower,
3331 case TC_CLSFLOWER_DESTROY:
3332 return mlx5e_delete_flower(priv->netdev, priv, cls_flower,
3334 case TC_CLSFLOWER_STATS:
3335 return mlx5e_stats_flower(priv->netdev, priv, cls_flower,
3342 static int mlx5e_setup_tc_block_cb(enum tc_setup_type type, void *type_data,
3345 struct mlx5e_priv *priv = cb_priv;
3348 case TC_SETUP_CLSFLOWER:
3349 return mlx5e_setup_tc_cls_flower(priv, type_data, MLX5E_TC_INGRESS |
3350 MLX5E_TC_NIC_OFFLOAD);
3356 static int mlx5e_setup_tc_block(struct net_device *dev,
3357 struct tc_block_offload *f)
3359 struct mlx5e_priv *priv = netdev_priv(dev);
3361 if (f->binder_type != TCF_BLOCK_BINDER_TYPE_CLSACT_INGRESS)
3364 switch (f->command) {
3366 return tcf_block_cb_register(f->block, mlx5e_setup_tc_block_cb,
3367 priv, priv, f->extack);
3368 case TC_BLOCK_UNBIND:
3369 tcf_block_cb_unregister(f->block, mlx5e_setup_tc_block_cb,
3378 static int mlx5e_setup_tc(struct net_device *dev, enum tc_setup_type type,
3382 #ifdef CONFIG_MLX5_ESWITCH
3383 case TC_SETUP_BLOCK:
3384 return mlx5e_setup_tc_block(dev, type_data);
3386 case TC_SETUP_QDISC_MQPRIO:
3387 return mlx5e_setup_tc_mqprio(dev, type_data);
3393 void mlx5e_fold_sw_stats64(struct mlx5e_priv *priv, struct rtnl_link_stats64 *s)
3397 for (i = 0; i < mlx5e_get_netdev_max_channels(priv->netdev); i++) {
3398 struct mlx5e_channel_stats *channel_stats = &priv->channel_stats[i];
3399 struct mlx5e_rq_stats *rq_stats = &channel_stats->rq;
3402 s->rx_packets += rq_stats->packets;
3403 s->rx_bytes += rq_stats->bytes;
3405 for (j = 0; j < priv->max_opened_tc; j++) {
3406 struct mlx5e_sq_stats *sq_stats = &channel_stats->sq[j];
3408 s->tx_packets += sq_stats->packets;
3409 s->tx_bytes += sq_stats->bytes;
3410 s->tx_dropped += sq_stats->dropped;
3416 mlx5e_get_stats(struct net_device *dev, struct rtnl_link_stats64 *stats)
3418 struct mlx5e_priv *priv = netdev_priv(dev);
3419 struct mlx5e_vport_stats *vstats = &priv->stats.vport;
3420 struct mlx5e_pport_stats *pstats = &priv->stats.pport;
3422 if (!mlx5e_monitor_counter_supported(priv)) {
3423 /* update HW stats in background for next time */
3424 mlx5e_queue_update_stats(priv);
3427 if (mlx5e_is_uplink_rep(priv)) {
3428 stats->rx_packets = PPORT_802_3_GET(pstats, a_frames_received_ok);
3429 stats->rx_bytes = PPORT_802_3_GET(pstats, a_octets_received_ok);
3430 stats->tx_packets = PPORT_802_3_GET(pstats, a_frames_transmitted_ok);
3431 stats->tx_bytes = PPORT_802_3_GET(pstats, a_octets_transmitted_ok);
3433 mlx5e_fold_sw_stats64(priv, stats);
3436 stats->rx_dropped = priv->stats.qcnt.rx_out_of_buffer;
3438 stats->rx_length_errors =
3439 PPORT_802_3_GET(pstats, a_in_range_length_errors) +
3440 PPORT_802_3_GET(pstats, a_out_of_range_length_field) +
3441 PPORT_802_3_GET(pstats, a_frame_too_long_errors);
3442 stats->rx_crc_errors =
3443 PPORT_802_3_GET(pstats, a_frame_check_sequence_errors);
3444 stats->rx_frame_errors = PPORT_802_3_GET(pstats, a_alignment_errors);
3445 stats->tx_aborted_errors = PPORT_2863_GET(pstats, if_out_discards);
3446 stats->rx_errors = stats->rx_length_errors + stats->rx_crc_errors +
3447 stats->rx_frame_errors;
3448 stats->tx_errors = stats->tx_aborted_errors + stats->tx_carrier_errors;
3450 /* vport multicast also counts packets that are dropped due to steering
3451 * or rx out of buffer
3454 VPORT_COUNTER_GET(vstats, received_eth_multicast.packets);
3457 static void mlx5e_set_rx_mode(struct net_device *dev)
3459 struct mlx5e_priv *priv = netdev_priv(dev);
3461 queue_work(priv->wq, &priv->set_rx_mode_work);
3464 static int mlx5e_set_mac(struct net_device *netdev, void *addr)
3466 struct mlx5e_priv *priv = netdev_priv(netdev);
3467 struct sockaddr *saddr = addr;
3469 if (!is_valid_ether_addr(saddr->sa_data))
3470 return -EADDRNOTAVAIL;
3472 netif_addr_lock_bh(netdev);
3473 ether_addr_copy(netdev->dev_addr, saddr->sa_data);
3474 netif_addr_unlock_bh(netdev);
3476 queue_work(priv->wq, &priv->set_rx_mode_work);
3481 #define MLX5E_SET_FEATURE(features, feature, enable) \
3484 *features |= feature; \
3486 *features &= ~feature; \
3489 typedef int (*mlx5e_feature_handler)(struct net_device *netdev, bool enable);
3491 static int set_feature_lro(struct net_device *netdev, bool enable)
3493 struct mlx5e_priv *priv = netdev_priv(netdev);
3494 struct mlx5_core_dev *mdev = priv->mdev;
3495 struct mlx5e_channels new_channels = {};
3496 struct mlx5e_params *old_params;
3500 mutex_lock(&priv->state_lock);
3502 old_params = &priv->channels.params;
3503 if (enable && !MLX5E_GET_PFLAG(old_params, MLX5E_PFLAG_RX_STRIDING_RQ)) {
3504 netdev_warn(netdev, "can't set LRO with legacy RQ\n");
3509 reset = test_bit(MLX5E_STATE_OPENED, &priv->state);
3511 new_channels.params = *old_params;
3512 new_channels.params.lro_en = enable;
3514 if (old_params->rq_wq_type != MLX5_WQ_TYPE_CYCLIC) {
3515 if (mlx5e_rx_mpwqe_is_linear_skb(mdev, old_params) ==
3516 mlx5e_rx_mpwqe_is_linear_skb(mdev, &new_channels.params))
3521 *old_params = new_channels.params;
3522 err = mlx5e_modify_tirs_lro(priv);
3526 err = mlx5e_safe_switch_channels(priv, &new_channels, mlx5e_modify_tirs_lro);
3528 mutex_unlock(&priv->state_lock);
3532 static int set_feature_cvlan_filter(struct net_device *netdev, bool enable)
3534 struct mlx5e_priv *priv = netdev_priv(netdev);
3537 mlx5e_enable_cvlan_filter(priv);
3539 mlx5e_disable_cvlan_filter(priv);
3544 #ifdef CONFIG_MLX5_ESWITCH
3545 static int set_feature_tc_num_filters(struct net_device *netdev, bool enable)
3547 struct mlx5e_priv *priv = netdev_priv(netdev);
3549 if (!enable && mlx5e_tc_num_filters(priv, MLX5E_TC_NIC_OFFLOAD)) {
3551 "Active offloaded tc filters, can't turn hw_tc_offload off\n");
3559 static int set_feature_rx_all(struct net_device *netdev, bool enable)
3561 struct mlx5e_priv *priv = netdev_priv(netdev);
3562 struct mlx5_core_dev *mdev = priv->mdev;
3564 return mlx5_set_port_fcs(mdev, !enable);
3567 static int set_feature_rx_fcs(struct net_device *netdev, bool enable)
3569 struct mlx5e_priv *priv = netdev_priv(netdev);
3572 mutex_lock(&priv->state_lock);
3574 priv->channels.params.scatter_fcs_en = enable;
3575 err = mlx5e_modify_channels_scatter_fcs(&priv->channels, enable);
3577 priv->channels.params.scatter_fcs_en = !enable;
3579 mutex_unlock(&priv->state_lock);
3584 static int set_feature_rx_vlan(struct net_device *netdev, bool enable)
3586 struct mlx5e_priv *priv = netdev_priv(netdev);
3589 mutex_lock(&priv->state_lock);
3591 priv->channels.params.vlan_strip_disable = !enable;
3592 if (!test_bit(MLX5E_STATE_OPENED, &priv->state))
3595 err = mlx5e_modify_channels_vsd(&priv->channels, !enable);
3597 priv->channels.params.vlan_strip_disable = enable;
3600 mutex_unlock(&priv->state_lock);
3605 #ifdef CONFIG_MLX5_EN_ARFS
3606 static int set_feature_arfs(struct net_device *netdev, bool enable)
3608 struct mlx5e_priv *priv = netdev_priv(netdev);
3612 err = mlx5e_arfs_enable(priv);
3614 err = mlx5e_arfs_disable(priv);
3620 static int mlx5e_handle_feature(struct net_device *netdev,
3621 netdev_features_t *features,
3622 netdev_features_t wanted_features,
3623 netdev_features_t feature,
3624 mlx5e_feature_handler feature_handler)
3626 netdev_features_t changes = wanted_features ^ netdev->features;
3627 bool enable = !!(wanted_features & feature);
3630 if (!(changes & feature))
3633 err = feature_handler(netdev, enable);
3635 netdev_err(netdev, "%s feature %pNF failed, err %d\n",
3636 enable ? "Enable" : "Disable", &feature, err);
3640 MLX5E_SET_FEATURE(features, feature, enable);
3644 static int mlx5e_set_features(struct net_device *netdev,
3645 netdev_features_t features)
3647 netdev_features_t oper_features = netdev->features;
3650 #define MLX5E_HANDLE_FEATURE(feature, handler) \
3651 mlx5e_handle_feature(netdev, &oper_features, features, feature, handler)
3653 err |= MLX5E_HANDLE_FEATURE(NETIF_F_LRO, set_feature_lro);
3654 err |= MLX5E_HANDLE_FEATURE(NETIF_F_HW_VLAN_CTAG_FILTER,
3655 set_feature_cvlan_filter);
3656 #ifdef CONFIG_MLX5_ESWITCH
3657 err |= MLX5E_HANDLE_FEATURE(NETIF_F_HW_TC, set_feature_tc_num_filters);
3659 err |= MLX5E_HANDLE_FEATURE(NETIF_F_RXALL, set_feature_rx_all);
3660 err |= MLX5E_HANDLE_FEATURE(NETIF_F_RXFCS, set_feature_rx_fcs);
3661 err |= MLX5E_HANDLE_FEATURE(NETIF_F_HW_VLAN_CTAG_RX, set_feature_rx_vlan);
3662 #ifdef CONFIG_MLX5_EN_ARFS
3663 err |= MLX5E_HANDLE_FEATURE(NETIF_F_NTUPLE, set_feature_arfs);
3667 netdev->features = oper_features;
3674 static netdev_features_t mlx5e_fix_features(struct net_device *netdev,
3675 netdev_features_t features)
3677 struct mlx5e_priv *priv = netdev_priv(netdev);
3678 struct mlx5e_params *params;
3680 mutex_lock(&priv->state_lock);
3681 params = &priv->channels.params;
3682 if (!bitmap_empty(priv->fs.vlan.active_svlans, VLAN_N_VID)) {
3683 /* HW strips the outer C-tag header, this is a problem
3684 * for S-tag traffic.
3686 features &= ~NETIF_F_HW_VLAN_CTAG_RX;
3687 if (!params->vlan_strip_disable)
3688 netdev_warn(netdev, "Dropping C-tag vlan stripping offload due to S-tag vlan\n");
3690 if (!MLX5E_GET_PFLAG(params, MLX5E_PFLAG_RX_STRIDING_RQ)) {
3691 features &= ~NETIF_F_LRO;
3693 netdev_warn(netdev, "Disabling LRO, not supported in legacy RQ\n");
3696 mutex_unlock(&priv->state_lock);
3701 int mlx5e_change_mtu(struct net_device *netdev, int new_mtu,
3702 change_hw_mtu_cb set_mtu_cb)
3704 struct mlx5e_priv *priv = netdev_priv(netdev);
3705 struct mlx5e_channels new_channels = {};
3706 struct mlx5e_params *params;
3710 mutex_lock(&priv->state_lock);
3712 params = &priv->channels.params;
3714 reset = !params->lro_en;
3715 reset = reset && test_bit(MLX5E_STATE_OPENED, &priv->state);
3717 new_channels.params = *params;
3718 new_channels.params.sw_mtu = new_mtu;
3720 if (params->xdp_prog &&
3721 !mlx5e_rx_is_linear_skb(&new_channels.params)) {
3722 netdev_err(netdev, "MTU(%d) > %d is not allowed while XDP enabled\n",
3723 new_mtu, MLX5E_XDP_MAX_MTU);
3728 if (params->rq_wq_type == MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ) {
3729 bool is_linear = mlx5e_rx_mpwqe_is_linear_skb(priv->mdev, &new_channels.params);
3730 u8 ppw_old = mlx5e_mpwqe_log_pkts_per_wqe(params);
3731 u8 ppw_new = mlx5e_mpwqe_log_pkts_per_wqe(&new_channels.params);
3733 reset = reset && (is_linear || (ppw_old != ppw_new));
3737 params->sw_mtu = new_mtu;
3740 netdev->mtu = params->sw_mtu;
3744 err = mlx5e_safe_switch_channels(priv, &new_channels, set_mtu_cb);
3748 netdev->mtu = new_channels.params.sw_mtu;
3751 mutex_unlock(&priv->state_lock);
3755 static int mlx5e_change_nic_mtu(struct net_device *netdev, int new_mtu)
3757 return mlx5e_change_mtu(netdev, new_mtu, mlx5e_set_dev_port_mtu);
3760 int mlx5e_hwstamp_set(struct mlx5e_priv *priv, struct ifreq *ifr)
3762 struct hwtstamp_config config;
3765 if (!MLX5_CAP_GEN(priv->mdev, device_frequency_khz) ||
3766 (mlx5_clock_get_ptp_index(priv->mdev) == -1))
3769 if (copy_from_user(&config, ifr->ifr_data, sizeof(config)))
3772 /* TX HW timestamp */
3773 switch (config.tx_type) {
3774 case HWTSTAMP_TX_OFF:
3775 case HWTSTAMP_TX_ON:
3781 mutex_lock(&priv->state_lock);
3782 /* RX HW timestamp */
3783 switch (config.rx_filter) {
3784 case HWTSTAMP_FILTER_NONE:
3785 /* Reset CQE compression to Admin default */
3786 mlx5e_modify_rx_cqe_compression_locked(priv, priv->channels.params.rx_cqe_compress_def);
3788 case HWTSTAMP_FILTER_ALL:
3789 case HWTSTAMP_FILTER_SOME:
3790 case HWTSTAMP_FILTER_PTP_V1_L4_EVENT:
3791 case HWTSTAMP_FILTER_PTP_V1_L4_SYNC:
3792 case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ:
3793 case HWTSTAMP_FILTER_PTP_V2_L4_EVENT:
3794 case HWTSTAMP_FILTER_PTP_V2_L4_SYNC:
3795 case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ:
3796 case HWTSTAMP_FILTER_PTP_V2_L2_EVENT:
3797 case HWTSTAMP_FILTER_PTP_V2_L2_SYNC:
3798 case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ:
3799 case HWTSTAMP_FILTER_PTP_V2_EVENT:
3800 case HWTSTAMP_FILTER_PTP_V2_SYNC:
3801 case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ:
3802 case HWTSTAMP_FILTER_NTP_ALL:
3803 /* Disable CQE compression */
3804 netdev_warn(priv->netdev, "Disabling cqe compression");
3805 err = mlx5e_modify_rx_cqe_compression_locked(priv, false);
3807 netdev_err(priv->netdev, "Failed disabling cqe compression err=%d\n", err);
3808 mutex_unlock(&priv->state_lock);
3811 config.rx_filter = HWTSTAMP_FILTER_ALL;
3814 mutex_unlock(&priv->state_lock);
3818 memcpy(&priv->tstamp, &config, sizeof(config));
3819 mutex_unlock(&priv->state_lock);
3821 return copy_to_user(ifr->ifr_data, &config,
3822 sizeof(config)) ? -EFAULT : 0;
3825 int mlx5e_hwstamp_get(struct mlx5e_priv *priv, struct ifreq *ifr)
3827 struct hwtstamp_config *cfg = &priv->tstamp;
3829 if (!MLX5_CAP_GEN(priv->mdev, device_frequency_khz))
3832 return copy_to_user(ifr->ifr_data, cfg, sizeof(*cfg)) ? -EFAULT : 0;
3835 static int mlx5e_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
3837 struct mlx5e_priv *priv = netdev_priv(dev);
3841 return mlx5e_hwstamp_set(priv, ifr);
3843 return mlx5e_hwstamp_get(priv, ifr);
3849 #ifdef CONFIG_MLX5_ESWITCH
3850 int mlx5e_set_vf_mac(struct net_device *dev, int vf, u8 *mac)
3852 struct mlx5e_priv *priv = netdev_priv(dev);
3853 struct mlx5_core_dev *mdev = priv->mdev;
3855 return mlx5_eswitch_set_vport_mac(mdev->priv.eswitch, vf + 1, mac);
3858 static int mlx5e_set_vf_vlan(struct net_device *dev, int vf, u16 vlan, u8 qos,
3861 struct mlx5e_priv *priv = netdev_priv(dev);
3862 struct mlx5_core_dev *mdev = priv->mdev;
3864 if (vlan_proto != htons(ETH_P_8021Q))
3865 return -EPROTONOSUPPORT;
3867 return mlx5_eswitch_set_vport_vlan(mdev->priv.eswitch, vf + 1,
3871 static int mlx5e_set_vf_spoofchk(struct net_device *dev, int vf, bool setting)
3873 struct mlx5e_priv *priv = netdev_priv(dev);
3874 struct mlx5_core_dev *mdev = priv->mdev;
3876 return mlx5_eswitch_set_vport_spoofchk(mdev->priv.eswitch, vf + 1, setting);
3879 static int mlx5e_set_vf_trust(struct net_device *dev, int vf, bool setting)
3881 struct mlx5e_priv *priv = netdev_priv(dev);
3882 struct mlx5_core_dev *mdev = priv->mdev;
3884 return mlx5_eswitch_set_vport_trust(mdev->priv.eswitch, vf + 1, setting);
3887 int mlx5e_set_vf_rate(struct net_device *dev, int vf, int min_tx_rate,
3890 struct mlx5e_priv *priv = netdev_priv(dev);
3891 struct mlx5_core_dev *mdev = priv->mdev;
3893 return mlx5_eswitch_set_vport_rate(mdev->priv.eswitch, vf + 1,
3894 max_tx_rate, min_tx_rate);
3897 static int mlx5_vport_link2ifla(u8 esw_link)
3900 case MLX5_VPORT_ADMIN_STATE_DOWN:
3901 return IFLA_VF_LINK_STATE_DISABLE;
3902 case MLX5_VPORT_ADMIN_STATE_UP:
3903 return IFLA_VF_LINK_STATE_ENABLE;
3905 return IFLA_VF_LINK_STATE_AUTO;
3908 static int mlx5_ifla_link2vport(u8 ifla_link)
3910 switch (ifla_link) {
3911 case IFLA_VF_LINK_STATE_DISABLE:
3912 return MLX5_VPORT_ADMIN_STATE_DOWN;
3913 case IFLA_VF_LINK_STATE_ENABLE:
3914 return MLX5_VPORT_ADMIN_STATE_UP;
3916 return MLX5_VPORT_ADMIN_STATE_AUTO;
3919 static int mlx5e_set_vf_link_state(struct net_device *dev, int vf,
3922 struct mlx5e_priv *priv = netdev_priv(dev);
3923 struct mlx5_core_dev *mdev = priv->mdev;
3925 return mlx5_eswitch_set_vport_state(mdev->priv.eswitch, vf + 1,
3926 mlx5_ifla_link2vport(link_state));
3929 int mlx5e_get_vf_config(struct net_device *dev,
3930 int vf, struct ifla_vf_info *ivi)
3932 struct mlx5e_priv *priv = netdev_priv(dev);
3933 struct mlx5_core_dev *mdev = priv->mdev;
3936 err = mlx5_eswitch_get_vport_config(mdev->priv.eswitch, vf + 1, ivi);
3939 ivi->linkstate = mlx5_vport_link2ifla(ivi->linkstate);
3943 int mlx5e_get_vf_stats(struct net_device *dev,
3944 int vf, struct ifla_vf_stats *vf_stats)
3946 struct mlx5e_priv *priv = netdev_priv(dev);
3947 struct mlx5_core_dev *mdev = priv->mdev;
3949 return mlx5_eswitch_get_vport_stats(mdev->priv.eswitch, vf + 1,
3954 struct mlx5e_vxlan_work {
3955 struct work_struct work;
3956 struct mlx5e_priv *priv;
3960 static void mlx5e_vxlan_add_work(struct work_struct *work)
3962 struct mlx5e_vxlan_work *vxlan_work =
3963 container_of(work, struct mlx5e_vxlan_work, work);
3964 struct mlx5e_priv *priv = vxlan_work->priv;
3965 u16 port = vxlan_work->port;
3967 mutex_lock(&priv->state_lock);
3968 mlx5_vxlan_add_port(priv->mdev->vxlan, port);
3969 mutex_unlock(&priv->state_lock);
3974 static void mlx5e_vxlan_del_work(struct work_struct *work)
3976 struct mlx5e_vxlan_work *vxlan_work =
3977 container_of(work, struct mlx5e_vxlan_work, work);
3978 struct mlx5e_priv *priv = vxlan_work->priv;
3979 u16 port = vxlan_work->port;
3981 mutex_lock(&priv->state_lock);
3982 mlx5_vxlan_del_port(priv->mdev->vxlan, port);
3983 mutex_unlock(&priv->state_lock);
3987 static void mlx5e_vxlan_queue_work(struct mlx5e_priv *priv, u16 port, int add)
3989 struct mlx5e_vxlan_work *vxlan_work;
3991 vxlan_work = kmalloc(sizeof(*vxlan_work), GFP_ATOMIC);
3996 INIT_WORK(&vxlan_work->work, mlx5e_vxlan_add_work);
3998 INIT_WORK(&vxlan_work->work, mlx5e_vxlan_del_work);
4000 vxlan_work->priv = priv;
4001 vxlan_work->port = port;
4002 queue_work(priv->wq, &vxlan_work->work);
4005 void mlx5e_add_vxlan_port(struct net_device *netdev, struct udp_tunnel_info *ti)
4007 struct mlx5e_priv *priv = netdev_priv(netdev);
4009 if (ti->type != UDP_TUNNEL_TYPE_VXLAN)
4012 if (!mlx5_vxlan_allowed(priv->mdev->vxlan))
4015 mlx5e_vxlan_queue_work(priv, be16_to_cpu(ti->port), 1);
4018 void mlx5e_del_vxlan_port(struct net_device *netdev, struct udp_tunnel_info *ti)
4020 struct mlx5e_priv *priv = netdev_priv(netdev);
4022 if (ti->type != UDP_TUNNEL_TYPE_VXLAN)
4025 if (!mlx5_vxlan_allowed(priv->mdev->vxlan))
4028 mlx5e_vxlan_queue_work(priv, be16_to_cpu(ti->port), 0);
4031 static netdev_features_t mlx5e_tunnel_features_check(struct mlx5e_priv *priv,
4032 struct sk_buff *skb,
4033 netdev_features_t features)
4035 unsigned int offset = 0;
4036 struct udphdr *udph;
4040 switch (vlan_get_protocol(skb)) {
4041 case htons(ETH_P_IP):
4042 proto = ip_hdr(skb)->protocol;
4044 case htons(ETH_P_IPV6):
4045 proto = ipv6_find_hdr(skb, &offset, -1, NULL, NULL);
4055 udph = udp_hdr(skb);
4056 port = be16_to_cpu(udph->dest);
4058 /* Verify if UDP port is being offloaded by HW */
4059 if (mlx5_vxlan_lookup_port(priv->mdev->vxlan, port))
4062 #if IS_ENABLED(CONFIG_GENEVE)
4063 /* Support Geneve offload for default UDP port */
4064 if (port == GENEVE_UDP_PORT && mlx5_geneve_tx_allowed(priv->mdev))
4070 /* Disable CSUM and GSO if the udp dport is not offloaded by HW */
4071 return features & ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK);
4074 netdev_features_t mlx5e_features_check(struct sk_buff *skb,
4075 struct net_device *netdev,
4076 netdev_features_t features)
4078 struct mlx5e_priv *priv = netdev_priv(netdev);
4080 features = vlan_features_check(skb, features);
4081 features = vxlan_features_check(skb, features);
4083 #ifdef CONFIG_MLX5_EN_IPSEC
4084 if (mlx5e_ipsec_feature_check(skb, netdev, features))
4088 /* Validate if the tunneled packet is being offloaded by HW */
4089 if (skb->encapsulation &&
4090 (features & NETIF_F_CSUM_MASK || features & NETIF_F_GSO_MASK))
4091 return mlx5e_tunnel_features_check(priv, skb, features);
4096 static void mlx5e_tx_timeout_work(struct work_struct *work)
4098 struct mlx5e_priv *priv = container_of(work, struct mlx5e_priv,
4100 bool report_failed = false;
4105 mutex_lock(&priv->state_lock);
4107 if (!test_bit(MLX5E_STATE_OPENED, &priv->state))
4110 for (i = 0; i < priv->channels.num * priv->channels.params.num_tc; i++) {
4111 struct netdev_queue *dev_queue =
4112 netdev_get_tx_queue(priv->netdev, i);
4113 struct mlx5e_txqsq *sq = priv->txq2sq[i];
4115 if (!netif_xmit_stopped(dev_queue))
4118 if (mlx5e_tx_reporter_timeout(sq))
4119 report_failed = true;
4125 err = mlx5e_safe_reopen_channels(priv);
4127 netdev_err(priv->netdev,
4128 "mlx5e_safe_reopen_channels failed recovering from a tx_timeout, err(%d).\n",
4132 mutex_unlock(&priv->state_lock);
4136 static void mlx5e_tx_timeout(struct net_device *dev)
4138 struct mlx5e_priv *priv = netdev_priv(dev);
4140 netdev_err(dev, "TX timeout detected\n");
4141 queue_work(priv->wq, &priv->tx_timeout_work);
4144 static int mlx5e_xdp_allowed(struct mlx5e_priv *priv, struct bpf_prog *prog)
4146 struct net_device *netdev = priv->netdev;
4147 struct mlx5e_channels new_channels = {};
4149 if (priv->channels.params.lro_en) {
4150 netdev_warn(netdev, "can't set XDP while LRO is on, disable LRO first\n");
4154 if (MLX5_IPSEC_DEV(priv->mdev)) {
4155 netdev_warn(netdev, "can't set XDP with IPSec offload\n");
4159 new_channels.params = priv->channels.params;
4160 new_channels.params.xdp_prog = prog;
4162 if (!mlx5e_rx_is_linear_skb(&new_channels.params)) {
4163 netdev_warn(netdev, "XDP is not allowed with MTU(%d) > %d\n",
4164 new_channels.params.sw_mtu, MLX5E_XDP_MAX_MTU);
4171 static int mlx5e_xdp_set(struct net_device *netdev, struct bpf_prog *prog)
4173 struct mlx5e_priv *priv = netdev_priv(netdev);
4174 struct bpf_prog *old_prog;
4175 bool reset, was_opened;
4179 mutex_lock(&priv->state_lock);
4182 err = mlx5e_xdp_allowed(priv, prog);
4187 was_opened = test_bit(MLX5E_STATE_OPENED, &priv->state);
4188 /* no need for full reset when exchanging programs */
4189 reset = (!priv->channels.params.xdp_prog || !prog);
4191 if (was_opened && reset)
4192 mlx5e_close_locked(netdev);
4193 if (was_opened && !reset) {
4194 /* num_channels is invariant here, so we can take the
4195 * batched reference right upfront.
4197 prog = bpf_prog_add(prog, priv->channels.num);
4199 err = PTR_ERR(prog);
4204 /* exchange programs, extra prog reference we got from caller
4205 * as long as we don't fail from this point onwards.
4207 old_prog = xchg(&priv->channels.params.xdp_prog, prog);
4209 bpf_prog_put(old_prog);
4211 if (reset) /* change RQ type according to priv->xdp_prog */
4212 mlx5e_set_rq_type(priv->mdev, &priv->channels.params);
4214 if (was_opened && reset)
4215 err = mlx5e_open_locked(netdev);
4217 if (!test_bit(MLX5E_STATE_OPENED, &priv->state) || reset)
4220 /* exchanging programs w/o reset, we update ref counts on behalf
4221 * of the channels RQs here.
4223 for (i = 0; i < priv->channels.num; i++) {
4224 struct mlx5e_channel *c = priv->channels.c[i];
4226 clear_bit(MLX5E_RQ_STATE_ENABLED, &c->rq.state);
4227 napi_synchronize(&c->napi);
4228 /* prevent mlx5e_poll_rx_cq from accessing rq->xdp_prog */
4230 old_prog = xchg(&c->rq.xdp_prog, prog);
4232 set_bit(MLX5E_RQ_STATE_ENABLED, &c->rq.state);
4233 /* napi_schedule in case we have missed anything */
4234 napi_schedule(&c->napi);
4237 bpf_prog_put(old_prog);
4241 mutex_unlock(&priv->state_lock);
4245 static u32 mlx5e_xdp_query(struct net_device *dev)
4247 struct mlx5e_priv *priv = netdev_priv(dev);
4248 const struct bpf_prog *xdp_prog;
4251 mutex_lock(&priv->state_lock);
4252 xdp_prog = priv->channels.params.xdp_prog;
4254 prog_id = xdp_prog->aux->id;
4255 mutex_unlock(&priv->state_lock);
4260 static int mlx5e_xdp(struct net_device *dev, struct netdev_bpf *xdp)
4262 switch (xdp->command) {
4263 case XDP_SETUP_PROG:
4264 return mlx5e_xdp_set(dev, xdp->prog);
4265 case XDP_QUERY_PROG:
4266 xdp->prog_id = mlx5e_xdp_query(dev);
4273 #ifdef CONFIG_MLX5_ESWITCH
4274 static int mlx5e_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
4275 struct net_device *dev, u32 filter_mask,
4278 struct mlx5e_priv *priv = netdev_priv(dev);
4279 struct mlx5_core_dev *mdev = priv->mdev;
4283 err = mlx5_eswitch_get_vepa(mdev->priv.eswitch, &setting);
4286 mode = setting ? BRIDGE_MODE_VEPA : BRIDGE_MODE_VEB;
4287 return ndo_dflt_bridge_getlink(skb, pid, seq, dev,
4289 0, 0, nlflags, filter_mask, NULL);
4292 static int mlx5e_bridge_setlink(struct net_device *dev, struct nlmsghdr *nlh,
4293 u16 flags, struct netlink_ext_ack *extack)
4295 struct mlx5e_priv *priv = netdev_priv(dev);
4296 struct mlx5_core_dev *mdev = priv->mdev;
4297 struct nlattr *attr, *br_spec;
4298 u16 mode = BRIDGE_MODE_UNDEF;
4302 br_spec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC);
4306 nla_for_each_nested(attr, br_spec, rem) {
4307 if (nla_type(attr) != IFLA_BRIDGE_MODE)
4310 if (nla_len(attr) < sizeof(mode))
4313 mode = nla_get_u16(attr);
4314 if (mode > BRIDGE_MODE_VEPA)
4320 if (mode == BRIDGE_MODE_UNDEF)
4323 setting = (mode == BRIDGE_MODE_VEPA) ? 1 : 0;
4324 return mlx5_eswitch_set_vepa(mdev->priv.eswitch, setting);
4328 const struct net_device_ops mlx5e_netdev_ops = {
4329 .ndo_open = mlx5e_open,
4330 .ndo_stop = mlx5e_close,
4331 .ndo_start_xmit = mlx5e_xmit,
4332 .ndo_setup_tc = mlx5e_setup_tc,
4333 .ndo_select_queue = mlx5e_select_queue,
4334 .ndo_get_stats64 = mlx5e_get_stats,
4335 .ndo_set_rx_mode = mlx5e_set_rx_mode,
4336 .ndo_set_mac_address = mlx5e_set_mac,
4337 .ndo_vlan_rx_add_vid = mlx5e_vlan_rx_add_vid,
4338 .ndo_vlan_rx_kill_vid = mlx5e_vlan_rx_kill_vid,
4339 .ndo_set_features = mlx5e_set_features,
4340 .ndo_fix_features = mlx5e_fix_features,
4341 .ndo_change_mtu = mlx5e_change_nic_mtu,
4342 .ndo_do_ioctl = mlx5e_ioctl,
4343 .ndo_set_tx_maxrate = mlx5e_set_tx_maxrate,
4344 .ndo_udp_tunnel_add = mlx5e_add_vxlan_port,
4345 .ndo_udp_tunnel_del = mlx5e_del_vxlan_port,
4346 .ndo_features_check = mlx5e_features_check,
4347 .ndo_tx_timeout = mlx5e_tx_timeout,
4348 .ndo_bpf = mlx5e_xdp,
4349 .ndo_xdp_xmit = mlx5e_xdp_xmit,
4350 #ifdef CONFIG_MLX5_EN_ARFS
4351 .ndo_rx_flow_steer = mlx5e_rx_flow_steer,
4353 #ifdef CONFIG_MLX5_ESWITCH
4354 .ndo_bridge_setlink = mlx5e_bridge_setlink,
4355 .ndo_bridge_getlink = mlx5e_bridge_getlink,
4357 /* SRIOV E-Switch NDOs */
4358 .ndo_set_vf_mac = mlx5e_set_vf_mac,
4359 .ndo_set_vf_vlan = mlx5e_set_vf_vlan,
4360 .ndo_set_vf_spoofchk = mlx5e_set_vf_spoofchk,
4361 .ndo_set_vf_trust = mlx5e_set_vf_trust,
4362 .ndo_set_vf_rate = mlx5e_set_vf_rate,
4363 .ndo_get_vf_config = mlx5e_get_vf_config,
4364 .ndo_set_vf_link_state = mlx5e_set_vf_link_state,
4365 .ndo_get_vf_stats = mlx5e_get_vf_stats,
4369 static int mlx5e_check_required_hca_cap(struct mlx5_core_dev *mdev)
4371 if (MLX5_CAP_GEN(mdev, port_type) != MLX5_CAP_PORT_TYPE_ETH)
4373 if (!MLX5_CAP_GEN(mdev, eth_net_offloads) ||
4374 !MLX5_CAP_GEN(mdev, nic_flow_table) ||
4375 !MLX5_CAP_ETH(mdev, csum_cap) ||
4376 !MLX5_CAP_ETH(mdev, max_lso_cap) ||
4377 !MLX5_CAP_ETH(mdev, vlan_cap) ||
4378 !MLX5_CAP_ETH(mdev, rss_ind_tbl_cap) ||
4379 MLX5_CAP_FLOWTABLE(mdev,
4380 flow_table_properties_nic_receive.max_ft_level)
4382 mlx5_core_warn(mdev,
4383 "Not creating net device, some required device capabilities are missing\n");
4386 if (!MLX5_CAP_ETH(mdev, self_lb_en_modifiable))
4387 mlx5_core_warn(mdev, "Self loop back prevention is not supported\n");
4388 if (!MLX5_CAP_GEN(mdev, cq_moderation))
4389 mlx5_core_warn(mdev, "CQ moderation is not supported\n");
4394 void mlx5e_build_default_indir_rqt(u32 *indirection_rqt, int len,
4399 for (i = 0; i < len; i++)
4400 indirection_rqt[i] = i % num_channels;
4403 static bool slow_pci_heuristic(struct mlx5_core_dev *mdev)
4408 mlx5e_port_max_linkspeed(mdev, &link_speed);
4409 pci_bw = pcie_bandwidth_available(mdev->pdev, NULL, NULL, NULL);
4410 mlx5_core_dbg_once(mdev, "Max link speed = %d, PCI BW = %d\n",
4411 link_speed, pci_bw);
4413 #define MLX5E_SLOW_PCI_RATIO (2)
4415 return link_speed && pci_bw &&
4416 link_speed > MLX5E_SLOW_PCI_RATIO * pci_bw;
4419 static struct net_dim_cq_moder mlx5e_get_def_tx_moderation(u8 cq_period_mode)
4421 struct net_dim_cq_moder moder;
4423 moder.cq_period_mode = cq_period_mode;
4424 moder.pkts = MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_PKTS;
4425 moder.usec = MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_USEC;
4426 if (cq_period_mode == MLX5_CQ_PERIOD_MODE_START_FROM_CQE)
4427 moder.usec = MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_USEC_FROM_CQE;
4432 static struct net_dim_cq_moder mlx5e_get_def_rx_moderation(u8 cq_period_mode)
4434 struct net_dim_cq_moder moder;
4436 moder.cq_period_mode = cq_period_mode;
4437 moder.pkts = MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_PKTS;
4438 moder.usec = MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_USEC;
4439 if (cq_period_mode == MLX5_CQ_PERIOD_MODE_START_FROM_CQE)
4440 moder.usec = MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_USEC_FROM_CQE;
4445 static u8 mlx5_to_net_dim_cq_period_mode(u8 cq_period_mode)
4447 return cq_period_mode == MLX5_CQ_PERIOD_MODE_START_FROM_CQE ?
4448 NET_DIM_CQ_PERIOD_MODE_START_FROM_CQE :
4449 NET_DIM_CQ_PERIOD_MODE_START_FROM_EQE;
4452 void mlx5e_set_tx_cq_mode_params(struct mlx5e_params *params, u8 cq_period_mode)
4454 if (params->tx_dim_enabled) {
4455 u8 dim_period_mode = mlx5_to_net_dim_cq_period_mode(cq_period_mode);
4457 params->tx_cq_moderation = net_dim_get_def_tx_moderation(dim_period_mode);
4459 params->tx_cq_moderation = mlx5e_get_def_tx_moderation(cq_period_mode);
4462 MLX5E_SET_PFLAG(params, MLX5E_PFLAG_TX_CQE_BASED_MODER,
4463 params->tx_cq_moderation.cq_period_mode ==
4464 MLX5_CQ_PERIOD_MODE_START_FROM_CQE);
4467 void mlx5e_set_rx_cq_mode_params(struct mlx5e_params *params, u8 cq_period_mode)
4469 if (params->rx_dim_enabled) {
4470 u8 dim_period_mode = mlx5_to_net_dim_cq_period_mode(cq_period_mode);
4472 params->rx_cq_moderation = net_dim_get_def_rx_moderation(dim_period_mode);
4474 params->rx_cq_moderation = mlx5e_get_def_rx_moderation(cq_period_mode);
4477 MLX5E_SET_PFLAG(params, MLX5E_PFLAG_RX_CQE_BASED_MODER,
4478 params->rx_cq_moderation.cq_period_mode ==
4479 MLX5_CQ_PERIOD_MODE_START_FROM_CQE);
4482 static u32 mlx5e_choose_lro_timeout(struct mlx5_core_dev *mdev, u32 wanted_timeout)
4486 /* The supported periods are organized in ascending order */
4487 for (i = 0; i < MLX5E_LRO_TIMEOUT_ARR_SIZE - 1; i++)
4488 if (MLX5_CAP_ETH(mdev, lro_timer_supported_periods[i]) >= wanted_timeout)
4491 return MLX5_CAP_ETH(mdev, lro_timer_supported_periods[i]);
4494 void mlx5e_build_rq_params(struct mlx5_core_dev *mdev,
4495 struct mlx5e_params *params)
4497 /* Prefer Striding RQ, unless any of the following holds:
4498 * - Striding RQ configuration is not possible/supported.
4499 * - Slow PCI heuristic.
4500 * - Legacy RQ would use linear SKB while Striding RQ would use non-linear.
4502 if (!slow_pci_heuristic(mdev) &&
4503 mlx5e_striding_rq_possible(mdev, params) &&
4504 (mlx5e_rx_mpwqe_is_linear_skb(mdev, params) ||
4505 !mlx5e_rx_is_linear_skb(params)))
4506 MLX5E_SET_PFLAG(params, MLX5E_PFLAG_RX_STRIDING_RQ, true);
4507 mlx5e_set_rq_type(mdev, params);
4508 mlx5e_init_rq_type_params(mdev, params);
4511 void mlx5e_build_rss_params(struct mlx5e_rss_params *rss_params,
4514 enum mlx5e_traffic_types tt;
4516 rss_params->hfunc = ETH_RSS_HASH_TOP;
4517 netdev_rss_key_fill(rss_params->toeplitz_hash_key,
4518 sizeof(rss_params->toeplitz_hash_key));
4519 mlx5e_build_default_indir_rqt(rss_params->indirection_rqt,
4520 MLX5E_INDIR_RQT_SIZE, num_channels);
4521 for (tt = 0; tt < MLX5E_NUM_INDIR_TIRS; tt++)
4522 rss_params->rx_hash_fields[tt] =
4523 tirc_default_config[tt].rx_hash_fields;
4526 void mlx5e_build_nic_params(struct mlx5_core_dev *mdev,
4527 struct mlx5e_rss_params *rss_params,
4528 struct mlx5e_params *params,
4529 u16 max_channels, u16 mtu)
4531 u8 rx_cq_period_mode;
4533 params->sw_mtu = mtu;
4534 params->hard_mtu = MLX5E_ETH_HARD_MTU;
4535 params->num_channels = max_channels;
4539 params->log_sq_size = is_kdump_kernel() ?
4540 MLX5E_PARAMS_MINIMUM_LOG_SQ_SIZE :
4541 MLX5E_PARAMS_DEFAULT_LOG_SQ_SIZE;
4544 MLX5E_SET_PFLAG(params, MLX5E_PFLAG_XDP_TX_MPWQE,
4545 MLX5_CAP_ETH(mdev, enhanced_multi_pkt_send_wqe));
4547 /* set CQE compression */
4548 params->rx_cqe_compress_def = false;
4549 if (MLX5_CAP_GEN(mdev, cqe_compression) &&
4550 MLX5_CAP_GEN(mdev, vport_group_manager))
4551 params->rx_cqe_compress_def = slow_pci_heuristic(mdev);
4553 MLX5E_SET_PFLAG(params, MLX5E_PFLAG_RX_CQE_COMPRESS, params->rx_cqe_compress_def);
4554 MLX5E_SET_PFLAG(params, MLX5E_PFLAG_RX_NO_CSUM_COMPLETE, false);
4557 mlx5e_build_rq_params(mdev, params);
4561 /* TODO: && MLX5_CAP_ETH(mdev, lro_cap) */
4562 if (params->rq_wq_type == MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ)
4563 if (!mlx5e_rx_mpwqe_is_linear_skb(mdev, params))
4564 params->lro_en = !slow_pci_heuristic(mdev);
4565 params->lro_timeout = mlx5e_choose_lro_timeout(mdev, MLX5E_DEFAULT_LRO_TIMEOUT);
4567 /* CQ moderation params */
4568 rx_cq_period_mode = MLX5_CAP_GEN(mdev, cq_period_start_from_cqe) ?
4569 MLX5_CQ_PERIOD_MODE_START_FROM_CQE :
4570 MLX5_CQ_PERIOD_MODE_START_FROM_EQE;
4571 params->rx_dim_enabled = MLX5_CAP_GEN(mdev, cq_moderation);
4572 params->tx_dim_enabled = MLX5_CAP_GEN(mdev, cq_moderation);
4573 mlx5e_set_rx_cq_mode_params(params, rx_cq_period_mode);
4574 mlx5e_set_tx_cq_mode_params(params, MLX5_CQ_PERIOD_MODE_START_FROM_EQE);
4577 params->tx_min_inline_mode = mlx5e_params_calculate_tx_min_inline(mdev);
4580 mlx5e_build_rss_params(rss_params, params->num_channels);
4583 static void mlx5e_set_netdev_dev_addr(struct net_device *netdev)
4585 struct mlx5e_priv *priv = netdev_priv(netdev);
4587 mlx5_query_nic_vport_mac_address(priv->mdev, 0, netdev->dev_addr);
4588 if (is_zero_ether_addr(netdev->dev_addr) &&
4589 !MLX5_CAP_GEN(priv->mdev, vport_group_manager)) {
4590 eth_hw_addr_random(netdev);
4591 mlx5_core_info(priv->mdev, "Assigned random MAC address %pM\n", netdev->dev_addr);
4595 static void mlx5e_build_nic_netdev(struct net_device *netdev)
4597 struct mlx5e_priv *priv = netdev_priv(netdev);
4598 struct mlx5_core_dev *mdev = priv->mdev;
4602 SET_NETDEV_DEV(netdev, &mdev->pdev->dev);
4604 netdev->netdev_ops = &mlx5e_netdev_ops;
4606 #ifdef CONFIG_MLX5_CORE_EN_DCB
4607 if (MLX5_CAP_GEN(mdev, vport_group_manager) && MLX5_CAP_GEN(mdev, qos))
4608 netdev->dcbnl_ops = &mlx5e_dcbnl_ops;
4611 netdev->watchdog_timeo = 15 * HZ;
4613 netdev->ethtool_ops = &mlx5e_ethtool_ops;
4615 netdev->vlan_features |= NETIF_F_SG;
4616 netdev->vlan_features |= NETIF_F_IP_CSUM;
4617 netdev->vlan_features |= NETIF_F_IPV6_CSUM;
4618 netdev->vlan_features |= NETIF_F_GRO;
4619 netdev->vlan_features |= NETIF_F_TSO;
4620 netdev->vlan_features |= NETIF_F_TSO6;
4621 netdev->vlan_features |= NETIF_F_RXCSUM;
4622 netdev->vlan_features |= NETIF_F_RXHASH;
4624 netdev->hw_enc_features |= NETIF_F_HW_VLAN_CTAG_TX;
4625 netdev->hw_enc_features |= NETIF_F_HW_VLAN_CTAG_RX;
4627 if (!!MLX5_CAP_ETH(mdev, lro_cap) &&
4628 mlx5e_check_fragmented_striding_rq_cap(mdev))
4629 netdev->vlan_features |= NETIF_F_LRO;
4631 netdev->hw_features = netdev->vlan_features;
4632 netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_TX;
4633 netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_RX;
4634 netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_FILTER;
4635 netdev->hw_features |= NETIF_F_HW_VLAN_STAG_TX;
4637 if (mlx5_vxlan_allowed(mdev->vxlan) || mlx5_geneve_tx_allowed(mdev) ||
4638 MLX5_CAP_ETH(mdev, tunnel_stateless_gre)) {
4639 netdev->hw_enc_features |= NETIF_F_IP_CSUM;
4640 netdev->hw_enc_features |= NETIF_F_IPV6_CSUM;
4641 netdev->hw_enc_features |= NETIF_F_TSO;
4642 netdev->hw_enc_features |= NETIF_F_TSO6;
4643 netdev->hw_enc_features |= NETIF_F_GSO_PARTIAL;
4646 if (mlx5_vxlan_allowed(mdev->vxlan) || mlx5_geneve_tx_allowed(mdev)) {
4647 netdev->hw_features |= NETIF_F_GSO_UDP_TUNNEL |
4648 NETIF_F_GSO_UDP_TUNNEL_CSUM;
4649 netdev->hw_enc_features |= NETIF_F_GSO_UDP_TUNNEL |
4650 NETIF_F_GSO_UDP_TUNNEL_CSUM;
4651 netdev->gso_partial_features = NETIF_F_GSO_UDP_TUNNEL_CSUM;
4654 if (MLX5_CAP_ETH(mdev, tunnel_stateless_gre)) {
4655 netdev->hw_features |= NETIF_F_GSO_GRE |
4656 NETIF_F_GSO_GRE_CSUM;
4657 netdev->hw_enc_features |= NETIF_F_GSO_GRE |
4658 NETIF_F_GSO_GRE_CSUM;
4659 netdev->gso_partial_features |= NETIF_F_GSO_GRE |
4660 NETIF_F_GSO_GRE_CSUM;
4663 netdev->hw_features |= NETIF_F_GSO_PARTIAL;
4664 netdev->gso_partial_features |= NETIF_F_GSO_UDP_L4;
4665 netdev->hw_features |= NETIF_F_GSO_UDP_L4;
4666 netdev->features |= NETIF_F_GSO_UDP_L4;
4668 mlx5_query_port_fcs(mdev, &fcs_supported, &fcs_enabled);
4671 netdev->hw_features |= NETIF_F_RXALL;
4673 if (MLX5_CAP_ETH(mdev, scatter_fcs))
4674 netdev->hw_features |= NETIF_F_RXFCS;
4676 netdev->features = netdev->hw_features;
4677 if (!priv->channels.params.lro_en)
4678 netdev->features &= ~NETIF_F_LRO;
4681 netdev->features &= ~NETIF_F_RXALL;
4683 if (!priv->channels.params.scatter_fcs_en)
4684 netdev->features &= ~NETIF_F_RXFCS;
4686 #define FT_CAP(f) MLX5_CAP_FLOWTABLE(mdev, flow_table_properties_nic_receive.f)
4687 if (FT_CAP(flow_modify_en) &&
4688 FT_CAP(modify_root) &&
4689 FT_CAP(identified_miss_table_mode) &&
4690 FT_CAP(flow_table_modify)) {
4691 #ifdef CONFIG_MLX5_ESWITCH
4692 netdev->hw_features |= NETIF_F_HW_TC;
4694 #ifdef CONFIG_MLX5_EN_ARFS
4695 netdev->hw_features |= NETIF_F_NTUPLE;
4699 netdev->features |= NETIF_F_HIGHDMA;
4700 netdev->features |= NETIF_F_HW_VLAN_STAG_FILTER;
4702 netdev->priv_flags |= IFF_UNICAST_FLT;
4704 mlx5e_set_netdev_dev_addr(netdev);
4705 mlx5e_ipsec_build_netdev(priv);
4706 mlx5e_tls_build_netdev(priv);
4709 void mlx5e_create_q_counters(struct mlx5e_priv *priv)
4711 struct mlx5_core_dev *mdev = priv->mdev;
4714 err = mlx5_core_alloc_q_counter(mdev, &priv->q_counter);
4716 mlx5_core_warn(mdev, "alloc queue counter failed, %d\n", err);
4717 priv->q_counter = 0;
4720 err = mlx5_core_alloc_q_counter(mdev, &priv->drop_rq_q_counter);
4722 mlx5_core_warn(mdev, "alloc drop RQ counter failed, %d\n", err);
4723 priv->drop_rq_q_counter = 0;
4727 void mlx5e_destroy_q_counters(struct mlx5e_priv *priv)
4729 if (priv->q_counter)
4730 mlx5_core_dealloc_q_counter(priv->mdev, priv->q_counter);
4732 if (priv->drop_rq_q_counter)
4733 mlx5_core_dealloc_q_counter(priv->mdev, priv->drop_rq_q_counter);
4736 static int mlx5e_nic_init(struct mlx5_core_dev *mdev,
4737 struct net_device *netdev,
4738 const struct mlx5e_profile *profile,
4741 struct mlx5e_priv *priv = netdev_priv(netdev);
4742 struct mlx5e_rss_params *rss = &priv->rss_params;
4745 err = mlx5e_netdev_init(netdev, priv, mdev, profile, ppriv);
4749 mlx5e_build_nic_params(mdev, rss, &priv->channels.params,
4750 mlx5e_get_netdev_max_channels(netdev),
4753 mlx5e_timestamp_init(priv);
4755 err = mlx5e_ipsec_init(priv);
4757 mlx5_core_err(mdev, "IPSec initialization failed, %d\n", err);
4758 err = mlx5e_tls_init(priv);
4760 mlx5_core_err(mdev, "TLS initialization failed, %d\n", err);
4761 mlx5e_build_nic_netdev(netdev);
4762 mlx5e_build_tc2txq_maps(priv);
4767 static void mlx5e_nic_cleanup(struct mlx5e_priv *priv)
4769 mlx5e_tls_cleanup(priv);
4770 mlx5e_ipsec_cleanup(priv);
4771 mlx5e_netdev_cleanup(priv->netdev, priv);
4774 static int mlx5e_init_nic_rx(struct mlx5e_priv *priv)
4776 struct mlx5_core_dev *mdev = priv->mdev;
4779 mlx5e_create_q_counters(priv);
4781 err = mlx5e_open_drop_rq(priv, &priv->drop_rq);
4783 mlx5_core_err(mdev, "open drop rq failed, %d\n", err);
4784 goto err_destroy_q_counters;
4787 err = mlx5e_create_indirect_rqt(priv);
4789 goto err_close_drop_rq;
4791 err = mlx5e_create_direct_rqts(priv);
4793 goto err_destroy_indirect_rqts;
4795 err = mlx5e_create_indirect_tirs(priv, true);
4797 goto err_destroy_direct_rqts;
4799 err = mlx5e_create_direct_tirs(priv);
4801 goto err_destroy_indirect_tirs;
4803 err = mlx5e_create_flow_steering(priv);
4805 mlx5_core_warn(mdev, "create flow steering failed, %d\n", err);
4806 goto err_destroy_direct_tirs;
4809 err = mlx5e_tc_nic_init(priv);
4811 goto err_destroy_flow_steering;
4815 err_destroy_flow_steering:
4816 mlx5e_destroy_flow_steering(priv);
4817 err_destroy_direct_tirs:
4818 mlx5e_destroy_direct_tirs(priv);
4819 err_destroy_indirect_tirs:
4820 mlx5e_destroy_indirect_tirs(priv, true);
4821 err_destroy_direct_rqts:
4822 mlx5e_destroy_direct_rqts(priv);
4823 err_destroy_indirect_rqts:
4824 mlx5e_destroy_rqt(priv, &priv->indir_rqt);
4826 mlx5e_close_drop_rq(&priv->drop_rq);
4827 err_destroy_q_counters:
4828 mlx5e_destroy_q_counters(priv);
4832 static void mlx5e_cleanup_nic_rx(struct mlx5e_priv *priv)
4834 mlx5e_tc_nic_cleanup(priv);
4835 mlx5e_destroy_flow_steering(priv);
4836 mlx5e_destroy_direct_tirs(priv);
4837 mlx5e_destroy_indirect_tirs(priv, true);
4838 mlx5e_destroy_direct_rqts(priv);
4839 mlx5e_destroy_rqt(priv, &priv->indir_rqt);
4840 mlx5e_close_drop_rq(&priv->drop_rq);
4841 mlx5e_destroy_q_counters(priv);
4844 static int mlx5e_init_nic_tx(struct mlx5e_priv *priv)
4848 err = mlx5e_create_tises(priv);
4850 mlx5_core_warn(priv->mdev, "create tises failed, %d\n", err);
4854 #ifdef CONFIG_MLX5_CORE_EN_DCB
4855 mlx5e_dcbnl_initialize(priv);
4857 mlx5e_tx_reporter_create(priv);
4861 static void mlx5e_nic_enable(struct mlx5e_priv *priv)
4863 struct net_device *netdev = priv->netdev;
4864 struct mlx5_core_dev *mdev = priv->mdev;
4866 mlx5e_init_l2_addr(priv);
4868 /* Marking the link as currently not needed by the Driver */
4869 if (!netif_running(netdev))
4870 mlx5_set_port_admin_status(mdev, MLX5_PORT_DOWN);
4872 mlx5e_set_netdev_mtu_boundaries(priv);
4873 mlx5e_set_dev_port_mtu(priv);
4875 mlx5_lag_add(mdev, netdev);
4877 mlx5e_enable_async_events(priv);
4878 if (mlx5e_monitor_counter_supported(priv))
4879 mlx5e_monitor_counter_init(priv);
4881 if (netdev->reg_state != NETREG_REGISTERED)
4883 #ifdef CONFIG_MLX5_CORE_EN_DCB
4884 mlx5e_dcbnl_init_app(priv);
4887 queue_work(priv->wq, &priv->set_rx_mode_work);
4890 if (netif_running(netdev))
4892 netif_device_attach(netdev);
4896 static void mlx5e_nic_disable(struct mlx5e_priv *priv)
4898 struct mlx5_core_dev *mdev = priv->mdev;
4900 #ifdef CONFIG_MLX5_CORE_EN_DCB
4901 if (priv->netdev->reg_state == NETREG_REGISTERED)
4902 mlx5e_dcbnl_delete_app(priv);
4906 if (netif_running(priv->netdev))
4907 mlx5e_close(priv->netdev);
4908 netif_device_detach(priv->netdev);
4911 queue_work(priv->wq, &priv->set_rx_mode_work);
4913 if (mlx5e_monitor_counter_supported(priv))
4914 mlx5e_monitor_counter_cleanup(priv);
4916 mlx5e_disable_async_events(priv);
4917 mlx5_lag_remove(mdev);
4920 static const struct mlx5e_profile mlx5e_nic_profile = {
4921 .init = mlx5e_nic_init,
4922 .cleanup = mlx5e_nic_cleanup,
4923 .init_rx = mlx5e_init_nic_rx,
4924 .cleanup_rx = mlx5e_cleanup_nic_rx,
4925 .init_tx = mlx5e_init_nic_tx,
4926 .cleanup_tx = mlx5e_cleanup_nic_tx,
4927 .enable = mlx5e_nic_enable,
4928 .disable = mlx5e_nic_disable,
4929 .update_stats = mlx5e_update_ndo_stats,
4930 .update_carrier = mlx5e_update_carrier,
4931 .rx_handlers.handle_rx_cqe = mlx5e_handle_rx_cqe,
4932 .rx_handlers.handle_rx_cqe_mpwqe = mlx5e_handle_rx_cqe_mpwrq,
4933 .max_tc = MLX5E_MAX_NUM_TC,
4936 /* mlx5e generic netdev management API (move to en_common.c) */
4938 /* mlx5e_netdev_init/cleanup must be called from profile->init/cleanup callbacks */
4939 int mlx5e_netdev_init(struct net_device *netdev,
4940 struct mlx5e_priv *priv,
4941 struct mlx5_core_dev *mdev,
4942 const struct mlx5e_profile *profile,
4947 priv->netdev = netdev;
4948 priv->profile = profile;
4949 priv->ppriv = ppriv;
4950 priv->msglevel = MLX5E_MSG_LEVEL;
4951 priv->max_opened_tc = 1;
4953 mutex_init(&priv->state_lock);
4954 INIT_WORK(&priv->update_carrier_work, mlx5e_update_carrier_work);
4955 INIT_WORK(&priv->set_rx_mode_work, mlx5e_set_rx_mode_work);
4956 INIT_WORK(&priv->tx_timeout_work, mlx5e_tx_timeout_work);
4957 INIT_WORK(&priv->update_stats_work, mlx5e_update_stats_work);
4959 priv->wq = create_singlethread_workqueue("mlx5e");
4964 netif_carrier_off(netdev);
4966 #ifdef CONFIG_MLX5_EN_ARFS
4967 netdev->rx_cpu_rmap = mlx5_eq_table_get_rmap(mdev);
4973 void mlx5e_netdev_cleanup(struct net_device *netdev, struct mlx5e_priv *priv)
4975 destroy_workqueue(priv->wq);
4978 struct net_device *mlx5e_create_netdev(struct mlx5_core_dev *mdev,
4979 const struct mlx5e_profile *profile,
4983 struct net_device *netdev;
4986 netdev = alloc_etherdev_mqs(sizeof(struct mlx5e_priv),
4987 nch * profile->max_tc,
4990 mlx5_core_err(mdev, "alloc_etherdev_mqs() failed\n");
4994 err = profile->init(mdev, netdev, profile, ppriv);
4996 mlx5_core_err(mdev, "failed to init mlx5e profile %d\n", err);
4997 goto err_free_netdev;
5003 free_netdev(netdev);
5008 int mlx5e_attach_netdev(struct mlx5e_priv *priv)
5010 const struct mlx5e_profile *profile;
5014 profile = priv->profile;
5015 clear_bit(MLX5E_STATE_DESTROYING, &priv->state);
5017 /* max number of channels may have changed */
5018 max_nch = mlx5e_get_max_num_channels(priv->mdev);
5019 if (priv->channels.params.num_channels > max_nch) {
5020 mlx5_core_warn(priv->mdev, "MLX5E: Reducing number of channels to %d\n", max_nch);
5021 priv->channels.params.num_channels = max_nch;
5022 mlx5e_build_default_indir_rqt(priv->rss_params.indirection_rqt,
5023 MLX5E_INDIR_RQT_SIZE, max_nch);
5026 err = profile->init_tx(priv);
5030 err = profile->init_rx(priv);
5032 goto err_cleanup_tx;
5034 if (profile->enable)
5035 profile->enable(priv);
5040 profile->cleanup_tx(priv);
5046 void mlx5e_detach_netdev(struct mlx5e_priv *priv)
5048 const struct mlx5e_profile *profile = priv->profile;
5050 set_bit(MLX5E_STATE_DESTROYING, &priv->state);
5052 if (profile->disable)
5053 profile->disable(priv);
5054 flush_workqueue(priv->wq);
5056 profile->cleanup_rx(priv);
5057 profile->cleanup_tx(priv);
5058 cancel_work_sync(&priv->update_stats_work);
5061 void mlx5e_destroy_netdev(struct mlx5e_priv *priv)
5063 const struct mlx5e_profile *profile = priv->profile;
5064 struct net_device *netdev = priv->netdev;
5066 if (profile->cleanup)
5067 profile->cleanup(priv);
5068 free_netdev(netdev);
5071 /* mlx5e_attach and mlx5e_detach scope should be only creating/destroying
5072 * hardware contexts and to connect it to the current netdev.
5074 static int mlx5e_attach(struct mlx5_core_dev *mdev, void *vpriv)
5076 struct mlx5e_priv *priv = vpriv;
5077 struct net_device *netdev = priv->netdev;
5080 if (netif_device_present(netdev))
5083 err = mlx5e_create_mdev_resources(mdev);
5087 err = mlx5e_attach_netdev(priv);
5089 mlx5e_destroy_mdev_resources(mdev);
5096 static void mlx5e_detach(struct mlx5_core_dev *mdev, void *vpriv)
5098 struct mlx5e_priv *priv = vpriv;
5099 struct net_device *netdev = priv->netdev;
5101 if (!netif_device_present(netdev))
5104 mlx5e_detach_netdev(priv);
5105 mlx5e_destroy_mdev_resources(mdev);
5108 static void *mlx5e_add(struct mlx5_core_dev *mdev)
5110 struct net_device *netdev;
5115 err = mlx5e_check_required_hca_cap(mdev);
5119 #ifdef CONFIG_MLX5_ESWITCH
5120 if (MLX5_ESWITCH_MANAGER(mdev) &&
5121 mlx5_eswitch_mode(mdev->priv.eswitch) == SRIOV_OFFLOADS) {
5122 mlx5e_rep_register_vport_reps(mdev);
5127 nch = mlx5e_get_max_num_channels(mdev);
5128 netdev = mlx5e_create_netdev(mdev, &mlx5e_nic_profile, nch, NULL);
5130 mlx5_core_err(mdev, "mlx5e_create_netdev failed\n");
5134 priv = netdev_priv(netdev);
5136 err = mlx5e_attach(mdev, priv);
5138 mlx5_core_err(mdev, "mlx5e_attach failed, %d\n", err);
5139 goto err_destroy_netdev;
5142 err = register_netdev(netdev);
5144 mlx5_core_err(mdev, "register_netdev failed, %d\n", err);
5148 #ifdef CONFIG_MLX5_CORE_EN_DCB
5149 mlx5e_dcbnl_init_app(priv);
5154 mlx5e_detach(mdev, priv);
5156 mlx5e_destroy_netdev(priv);
5160 static void mlx5e_remove(struct mlx5_core_dev *mdev, void *vpriv)
5162 struct mlx5e_priv *priv;
5164 #ifdef CONFIG_MLX5_ESWITCH
5165 if (MLX5_ESWITCH_MANAGER(mdev) && vpriv == mdev) {
5166 mlx5e_rep_unregister_vport_reps(mdev);
5171 #ifdef CONFIG_MLX5_CORE_EN_DCB
5172 mlx5e_dcbnl_delete_app(priv);
5174 unregister_netdev(priv->netdev);
5175 mlx5e_detach(mdev, vpriv);
5176 mlx5e_destroy_netdev(priv);
5179 static struct mlx5_interface mlx5e_interface = {
5181 .remove = mlx5e_remove,
5182 .attach = mlx5e_attach,
5183 .detach = mlx5e_detach,
5184 .protocol = MLX5_INTERFACE_PROTOCOL_ETH,
5187 void mlx5e_init(void)
5189 mlx5e_ipsec_build_inverse_table();
5190 mlx5e_build_ptys2ethtool_map();
5191 mlx5_register_interface(&mlx5e_interface);
5194 void mlx5e_cleanup(void)
5196 mlx5_unregister_interface(&mlx5e_interface);