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>
41 #include <net/xdp_sock.h>
47 #include "en_accel/ipsec.h"
48 #include "en_accel/ipsec_rxtx.h"
49 #include "en_accel/en_accel.h"
50 #include "en_accel/tls.h"
51 #include "accel/ipsec.h"
52 #include "accel/tls.h"
53 #include "lib/vxlan.h"
54 #include "lib/clock.h"
58 #include "en/monitor_stats.h"
59 #include "en/health.h"
60 #include "en/params.h"
61 #include "en/xsk/umem.h"
62 #include "en/xsk/setup.h"
63 #include "en/xsk/rx.h"
64 #include "en/xsk/tx.h"
65 #include "en/hv_vhca_stats.h"
69 bool mlx5e_check_fragmented_striding_rq_cap(struct mlx5_core_dev *mdev)
71 bool striding_rq_umr = MLX5_CAP_GEN(mdev, striding_rq) &&
72 MLX5_CAP_GEN(mdev, umr_ptr_rlky) &&
73 MLX5_CAP_ETH(mdev, reg_umr_sq);
74 u16 max_wqe_sz_cap = MLX5_CAP_GEN(mdev, max_wqe_sz_sq);
75 bool inline_umr = MLX5E_UMR_WQE_INLINE_SZ <= max_wqe_sz_cap;
80 mlx5_core_warn(mdev, "Cannot support Striding RQ: UMR WQE size (%d) exceeds maximum supported (%d).\n",
81 (int)MLX5E_UMR_WQE_INLINE_SZ, max_wqe_sz_cap);
87 void mlx5e_init_rq_type_params(struct mlx5_core_dev *mdev,
88 struct mlx5e_params *params)
90 params->log_rq_mtu_frames = is_kdump_kernel() ?
91 MLX5E_PARAMS_MINIMUM_LOG_RQ_SIZE :
92 MLX5E_PARAMS_DEFAULT_LOG_RQ_SIZE;
94 mlx5_core_info(mdev, "MLX5E: StrdRq(%d) RqSz(%ld) StrdSz(%ld) RxCqeCmprss(%d)\n",
95 params->rq_wq_type == MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ,
96 params->rq_wq_type == MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ ?
97 BIT(mlx5e_mpwqe_get_log_rq_size(params, NULL)) :
98 BIT(params->log_rq_mtu_frames),
99 BIT(mlx5e_mpwqe_get_log_stride_size(mdev, params, NULL)),
100 MLX5E_GET_PFLAG(params, MLX5E_PFLAG_RX_CQE_COMPRESS));
103 bool mlx5e_striding_rq_possible(struct mlx5_core_dev *mdev,
104 struct mlx5e_params *params)
106 if (!mlx5e_check_fragmented_striding_rq_cap(mdev))
109 if (MLX5_IPSEC_DEV(mdev))
112 if (params->xdp_prog) {
113 /* XSK params are not considered here. If striding RQ is in use,
114 * and an XSK is being opened, mlx5e_rx_mpwqe_is_linear_skb will
115 * be called with the known XSK params.
117 if (!mlx5e_rx_mpwqe_is_linear_skb(mdev, params, NULL))
124 void mlx5e_set_rq_type(struct mlx5_core_dev *mdev, struct mlx5e_params *params)
126 params->rq_wq_type = mlx5e_striding_rq_possible(mdev, params) &&
127 MLX5E_GET_PFLAG(params, MLX5E_PFLAG_RX_STRIDING_RQ) ?
128 MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ :
132 void mlx5e_update_carrier(struct mlx5e_priv *priv)
134 struct mlx5_core_dev *mdev = priv->mdev;
137 port_state = mlx5_query_vport_state(mdev,
138 MLX5_VPORT_STATE_OP_MOD_VNIC_VPORT,
141 if (port_state == VPORT_STATE_UP) {
142 netdev_info(priv->netdev, "Link up\n");
143 netif_carrier_on(priv->netdev);
145 netdev_info(priv->netdev, "Link down\n");
146 netif_carrier_off(priv->netdev);
150 static void mlx5e_update_carrier_work(struct work_struct *work)
152 struct mlx5e_priv *priv = container_of(work, struct mlx5e_priv,
153 update_carrier_work);
155 mutex_lock(&priv->state_lock);
156 if (test_bit(MLX5E_STATE_OPENED, &priv->state))
157 if (priv->profile->update_carrier)
158 priv->profile->update_carrier(priv);
159 mutex_unlock(&priv->state_lock);
162 void mlx5e_update_ndo_stats(struct mlx5e_priv *priv)
166 for (i = mlx5e_nic_stats_grps_num(priv) - 1; i >= 0; i--)
167 if (mlx5e_nic_stats_grps[i]->update_stats_mask &
168 MLX5E_NDO_UPDATE_STATS)
169 mlx5e_nic_stats_grps[i]->update_stats(priv);
172 static void mlx5e_update_stats_work(struct work_struct *work)
174 struct mlx5e_priv *priv = container_of(work, struct mlx5e_priv,
177 mutex_lock(&priv->state_lock);
178 priv->profile->update_stats(priv);
179 mutex_unlock(&priv->state_lock);
182 void mlx5e_queue_update_stats(struct mlx5e_priv *priv)
184 if (!priv->profile->update_stats)
187 if (unlikely(test_bit(MLX5E_STATE_DESTROYING, &priv->state)))
190 queue_work(priv->wq, &priv->update_stats_work);
193 static int async_event(struct notifier_block *nb, unsigned long event, void *data)
195 struct mlx5e_priv *priv = container_of(nb, struct mlx5e_priv, events_nb);
196 struct mlx5_eqe *eqe = data;
198 if (event != MLX5_EVENT_TYPE_PORT_CHANGE)
201 switch (eqe->sub_type) {
202 case MLX5_PORT_CHANGE_SUBTYPE_DOWN:
203 case MLX5_PORT_CHANGE_SUBTYPE_ACTIVE:
204 queue_work(priv->wq, &priv->update_carrier_work);
213 static void mlx5e_enable_async_events(struct mlx5e_priv *priv)
215 priv->events_nb.notifier_call = async_event;
216 mlx5_notifier_register(priv->mdev, &priv->events_nb);
219 static void mlx5e_disable_async_events(struct mlx5e_priv *priv)
221 mlx5_notifier_unregister(priv->mdev, &priv->events_nb);
224 static inline void mlx5e_build_umr_wqe(struct mlx5e_rq *rq,
225 struct mlx5e_icosq *sq,
226 struct mlx5e_umr_wqe *wqe)
228 struct mlx5_wqe_ctrl_seg *cseg = &wqe->ctrl;
229 struct mlx5_wqe_umr_ctrl_seg *ucseg = &wqe->uctrl;
230 u8 ds_cnt = DIV_ROUND_UP(MLX5E_UMR_WQE_INLINE_SZ, MLX5_SEND_WQE_DS);
232 cseg->qpn_ds = cpu_to_be32((sq->sqn << MLX5_WQE_CTRL_QPN_SHIFT) |
234 cseg->fm_ce_se = MLX5_WQE_CTRL_CQ_UPDATE;
235 cseg->imm = rq->mkey_be;
237 ucseg->flags = MLX5_UMR_TRANSLATION_OFFSET_EN | MLX5_UMR_INLINE;
238 ucseg->xlt_octowords =
239 cpu_to_be16(MLX5_MTT_OCTW(MLX5_MPWRQ_PAGES_PER_WQE));
240 ucseg->mkey_mask = cpu_to_be64(MLX5_MKEY_MASK_FREE);
243 static int mlx5e_rq_alloc_mpwqe_info(struct mlx5e_rq *rq,
244 struct mlx5e_channel *c)
246 int wq_sz = mlx5_wq_ll_get_size(&rq->mpwqe.wq);
248 rq->mpwqe.info = kvzalloc_node(array_size(wq_sz,
249 sizeof(*rq->mpwqe.info)),
250 GFP_KERNEL, cpu_to_node(c->cpu));
254 mlx5e_build_umr_wqe(rq, &c->icosq, &rq->mpwqe.umr_wqe);
259 static int mlx5e_create_umr_mkey(struct mlx5_core_dev *mdev,
260 u64 npages, u8 page_shift,
261 struct mlx5_core_mkey *umr_mkey)
263 int inlen = MLX5_ST_SZ_BYTES(create_mkey_in);
268 in = kvzalloc(inlen, GFP_KERNEL);
272 mkc = MLX5_ADDR_OF(create_mkey_in, in, memory_key_mkey_entry);
274 MLX5_SET(mkc, mkc, free, 1);
275 MLX5_SET(mkc, mkc, umr_en, 1);
276 MLX5_SET(mkc, mkc, lw, 1);
277 MLX5_SET(mkc, mkc, lr, 1);
278 MLX5_SET(mkc, mkc, access_mode_1_0, MLX5_MKC_ACCESS_MODE_MTT);
280 MLX5_SET(mkc, mkc, qpn, 0xffffff);
281 MLX5_SET(mkc, mkc, pd, mdev->mlx5e_res.pdn);
282 MLX5_SET64(mkc, mkc, len, npages << page_shift);
283 MLX5_SET(mkc, mkc, translations_octword_size,
284 MLX5_MTT_OCTW(npages));
285 MLX5_SET(mkc, mkc, log_page_size, page_shift);
287 err = mlx5_core_create_mkey(mdev, umr_mkey, in, inlen);
293 static int mlx5e_create_rq_umr_mkey(struct mlx5_core_dev *mdev, struct mlx5e_rq *rq)
295 u64 num_mtts = MLX5E_REQUIRED_MTTS(mlx5_wq_ll_get_size(&rq->mpwqe.wq));
297 return mlx5e_create_umr_mkey(mdev, num_mtts, PAGE_SHIFT, &rq->umr_mkey);
300 static inline u64 mlx5e_get_mpwqe_offset(struct mlx5e_rq *rq, u16 wqe_ix)
302 return (wqe_ix << MLX5E_LOG_ALIGNED_MPWQE_PPW) << PAGE_SHIFT;
305 static void mlx5e_init_frags_partition(struct mlx5e_rq *rq)
307 struct mlx5e_wqe_frag_info next_frag = {};
308 struct mlx5e_wqe_frag_info *prev = NULL;
311 next_frag.di = &rq->wqe.di[0];
313 for (i = 0; i < mlx5_wq_cyc_get_size(&rq->wqe.wq); i++) {
314 struct mlx5e_rq_frag_info *frag_info = &rq->wqe.info.arr[0];
315 struct mlx5e_wqe_frag_info *frag =
316 &rq->wqe.frags[i << rq->wqe.info.log_num_frags];
319 for (f = 0; f < rq->wqe.info.num_frags; f++, frag++) {
320 if (next_frag.offset + frag_info[f].frag_stride > PAGE_SIZE) {
322 next_frag.offset = 0;
324 prev->last_in_page = true;
329 next_frag.offset += frag_info[f].frag_stride;
335 prev->last_in_page = true;
338 static int mlx5e_init_di_list(struct mlx5e_rq *rq,
341 int len = wq_sz << rq->wqe.info.log_num_frags;
343 rq->wqe.di = kvzalloc_node(array_size(len, sizeof(*rq->wqe.di)),
344 GFP_KERNEL, cpu_to_node(cpu));
348 mlx5e_init_frags_partition(rq);
353 static void mlx5e_free_di_list(struct mlx5e_rq *rq)
358 static void mlx5e_rq_err_cqe_work(struct work_struct *recover_work)
360 struct mlx5e_rq *rq = container_of(recover_work, struct mlx5e_rq, recover_work);
362 mlx5e_reporter_rq_cqe_err(rq);
365 static int mlx5e_alloc_rq(struct mlx5e_channel *c,
366 struct mlx5e_params *params,
367 struct mlx5e_xsk_param *xsk,
368 struct xdp_umem *umem,
369 struct mlx5e_rq_param *rqp,
372 struct page_pool_params pp_params = { 0 };
373 struct mlx5_core_dev *mdev = c->mdev;
374 void *rqc = rqp->rqc;
375 void *rqc_wq = MLX5_ADDR_OF(rqc, rqc, wq);
376 u32 num_xsk_frames = 0;
383 rqp->wq.db_numa_node = cpu_to_node(c->cpu);
385 rq->wq_type = params->rq_wq_type;
387 rq->netdev = c->netdev;
388 rq->tstamp = c->tstamp;
389 rq->clock = &mdev->clock;
393 rq->hw_mtu = MLX5E_SW2HW_MTU(params, params->sw_mtu);
394 rq->xdpsq = &c->rq_xdpsq;
398 rq->stats = &c->priv->channel_stats[c->ix].xskrq;
400 rq->stats = &c->priv->channel_stats[c->ix].rq;
401 INIT_WORK(&rq->recover_work, mlx5e_rq_err_cqe_work);
403 if (params->xdp_prog)
404 bpf_prog_inc(params->xdp_prog);
405 rq->xdp_prog = params->xdp_prog;
409 rq_xdp_ix += params->num_channels * MLX5E_RQ_GROUP_XSK;
410 err = xdp_rxq_info_reg(&rq->xdp_rxq, rq->netdev, rq_xdp_ix);
412 goto err_rq_wq_destroy;
414 rq->buff.map_dir = rq->xdp_prog ? DMA_BIDIRECTIONAL : DMA_FROM_DEVICE;
415 rq->buff.headroom = mlx5e_get_rq_headroom(mdev, params, xsk);
416 rq->buff.umem_headroom = xsk ? xsk->headroom : 0;
417 pool_size = 1 << params->log_rq_mtu_frames;
419 switch (rq->wq_type) {
420 case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ:
421 err = mlx5_wq_ll_create(mdev, &rqp->wq, rqc_wq, &rq->mpwqe.wq,
426 rq->mpwqe.wq.db = &rq->mpwqe.wq.db[MLX5_RCV_DBR];
428 wq_sz = mlx5_wq_ll_get_size(&rq->mpwqe.wq);
431 num_xsk_frames = wq_sz <<
432 mlx5e_mpwqe_get_log_num_strides(mdev, params, xsk);
434 pool_size = MLX5_MPWRQ_PAGES_PER_WQE <<
435 mlx5e_mpwqe_get_log_rq_size(params, xsk);
437 rq->post_wqes = mlx5e_post_rx_mpwqes;
438 rq->dealloc_wqe = mlx5e_dealloc_rx_mpwqe;
440 rq->handle_rx_cqe = c->priv->profile->rx_handlers.handle_rx_cqe_mpwqe;
441 #ifdef CONFIG_MLX5_EN_IPSEC
442 if (MLX5_IPSEC_DEV(mdev)) {
444 netdev_err(c->netdev, "MPWQE RQ with IPSec offload not supported\n");
445 goto err_rq_wq_destroy;
448 if (!rq->handle_rx_cqe) {
450 netdev_err(c->netdev, "RX handler of MPWQE RQ is not set, err %d\n", err);
451 goto err_rq_wq_destroy;
454 rq->mpwqe.skb_from_cqe_mpwrq = xsk ?
455 mlx5e_xsk_skb_from_cqe_mpwrq_linear :
456 mlx5e_rx_mpwqe_is_linear_skb(mdev, params, NULL) ?
457 mlx5e_skb_from_cqe_mpwrq_linear :
458 mlx5e_skb_from_cqe_mpwrq_nonlinear;
460 rq->mpwqe.log_stride_sz = mlx5e_mpwqe_get_log_stride_size(mdev, params, xsk);
461 rq->mpwqe.num_strides =
462 BIT(mlx5e_mpwqe_get_log_num_strides(mdev, params, xsk));
464 err = mlx5e_create_rq_umr_mkey(mdev, rq);
466 goto err_rq_wq_destroy;
467 rq->mkey_be = cpu_to_be32(rq->umr_mkey.key);
469 err = mlx5e_rq_alloc_mpwqe_info(rq, c);
473 default: /* MLX5_WQ_TYPE_CYCLIC */
474 err = mlx5_wq_cyc_create(mdev, &rqp->wq, rqc_wq, &rq->wqe.wq,
479 rq->wqe.wq.db = &rq->wqe.wq.db[MLX5_RCV_DBR];
481 wq_sz = mlx5_wq_cyc_get_size(&rq->wqe.wq);
484 num_xsk_frames = wq_sz << rq->wqe.info.log_num_frags;
486 rq->wqe.info = rqp->frags_info;
488 kvzalloc_node(array_size(sizeof(*rq->wqe.frags),
489 (wq_sz << rq->wqe.info.log_num_frags)),
490 GFP_KERNEL, cpu_to_node(c->cpu));
491 if (!rq->wqe.frags) {
496 err = mlx5e_init_di_list(rq, wq_sz, c->cpu);
500 rq->post_wqes = mlx5e_post_rx_wqes;
501 rq->dealloc_wqe = mlx5e_dealloc_rx_wqe;
503 #ifdef CONFIG_MLX5_EN_IPSEC
505 rq->handle_rx_cqe = mlx5e_ipsec_handle_rx_cqe;
508 rq->handle_rx_cqe = c->priv->profile->rx_handlers.handle_rx_cqe;
509 if (!rq->handle_rx_cqe) {
511 netdev_err(c->netdev, "RX handler of RQ is not set, err %d\n", err);
515 rq->wqe.skb_from_cqe = xsk ?
516 mlx5e_xsk_skb_from_cqe_linear :
517 mlx5e_rx_is_linear_skb(params, NULL) ?
518 mlx5e_skb_from_cqe_linear :
519 mlx5e_skb_from_cqe_nonlinear;
520 rq->mkey_be = c->mkey_be;
524 err = mlx5e_xsk_resize_reuseq(umem, num_xsk_frames);
526 mlx5_core_err(mdev, "Unable to allocate the Reuse Ring for %u frames\n",
531 rq->zca.free = mlx5e_xsk_zca_free;
532 err = xdp_rxq_info_reg_mem_model(&rq->xdp_rxq,
536 /* Create a page_pool and register it with rxq */
538 pp_params.flags = 0; /* No-internal DMA mapping in page_pool */
539 pp_params.pool_size = pool_size;
540 pp_params.nid = cpu_to_node(c->cpu);
541 pp_params.dev = c->pdev;
542 pp_params.dma_dir = rq->buff.map_dir;
544 /* page_pool can be used even when there is no rq->xdp_prog,
545 * given page_pool does not handle DMA mapping there is no
546 * required state to clear. And page_pool gracefully handle
549 rq->page_pool = page_pool_create(&pp_params);
550 if (IS_ERR(rq->page_pool)) {
551 err = PTR_ERR(rq->page_pool);
552 rq->page_pool = NULL;
555 err = xdp_rxq_info_reg_mem_model(&rq->xdp_rxq,
556 MEM_TYPE_PAGE_POOL, rq->page_pool);
561 for (i = 0; i < wq_sz; i++) {
562 if (rq->wq_type == MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ) {
563 struct mlx5e_rx_wqe_ll *wqe =
564 mlx5_wq_ll_get_wqe(&rq->mpwqe.wq, i);
566 rq->mpwqe.num_strides << rq->mpwqe.log_stride_sz;
567 u64 dma_offset = mlx5e_get_mpwqe_offset(rq, i);
569 wqe->data[0].addr = cpu_to_be64(dma_offset + rq->buff.headroom);
570 wqe->data[0].byte_count = cpu_to_be32(byte_count);
571 wqe->data[0].lkey = rq->mkey_be;
573 struct mlx5e_rx_wqe_cyc *wqe =
574 mlx5_wq_cyc_get_wqe(&rq->wqe.wq, i);
577 for (f = 0; f < rq->wqe.info.num_frags; f++) {
578 u32 frag_size = rq->wqe.info.arr[f].frag_size |
579 MLX5_HW_START_PADDING;
581 wqe->data[f].byte_count = cpu_to_be32(frag_size);
582 wqe->data[f].lkey = rq->mkey_be;
584 /* check if num_frags is not a pow of two */
585 if (rq->wqe.info.num_frags < (1 << rq->wqe.info.log_num_frags)) {
586 wqe->data[f].byte_count = 0;
587 wqe->data[f].lkey = cpu_to_be32(MLX5_INVALID_LKEY);
588 wqe->data[f].addr = 0;
593 INIT_WORK(&rq->dim.work, mlx5e_rx_dim_work);
595 switch (params->rx_cq_moderation.cq_period_mode) {
596 case MLX5_CQ_PERIOD_MODE_START_FROM_CQE:
597 rq->dim.mode = DIM_CQ_PERIOD_MODE_START_FROM_CQE;
599 case MLX5_CQ_PERIOD_MODE_START_FROM_EQE:
601 rq->dim.mode = DIM_CQ_PERIOD_MODE_START_FROM_EQE;
604 rq->page_cache.head = 0;
605 rq->page_cache.tail = 0;
610 switch (rq->wq_type) {
611 case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ:
612 kvfree(rq->mpwqe.info);
613 mlx5_core_destroy_mkey(mdev, &rq->umr_mkey);
615 default: /* MLX5_WQ_TYPE_CYCLIC */
616 kvfree(rq->wqe.frags);
617 mlx5e_free_di_list(rq);
622 bpf_prog_put(rq->xdp_prog);
623 xdp_rxq_info_unreg(&rq->xdp_rxq);
624 page_pool_destroy(rq->page_pool);
625 mlx5_wq_destroy(&rq->wq_ctrl);
630 static void mlx5e_free_rq(struct mlx5e_rq *rq)
635 bpf_prog_put(rq->xdp_prog);
637 switch (rq->wq_type) {
638 case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ:
639 kvfree(rq->mpwqe.info);
640 mlx5_core_destroy_mkey(rq->mdev, &rq->umr_mkey);
642 default: /* MLX5_WQ_TYPE_CYCLIC */
643 kvfree(rq->wqe.frags);
644 mlx5e_free_di_list(rq);
647 for (i = rq->page_cache.head; i != rq->page_cache.tail;
648 i = (i + 1) & (MLX5E_CACHE_SIZE - 1)) {
649 struct mlx5e_dma_info *dma_info = &rq->page_cache.page_cache[i];
651 /* With AF_XDP, page_cache is not used, so this loop is not
652 * entered, and it's safe to call mlx5e_page_release_dynamic
655 mlx5e_page_release_dynamic(rq, dma_info, false);
658 xdp_rxq_info_unreg(&rq->xdp_rxq);
659 page_pool_destroy(rq->page_pool);
660 mlx5_wq_destroy(&rq->wq_ctrl);
663 static int mlx5e_create_rq(struct mlx5e_rq *rq,
664 struct mlx5e_rq_param *param)
666 struct mlx5_core_dev *mdev = rq->mdev;
674 inlen = MLX5_ST_SZ_BYTES(create_rq_in) +
675 sizeof(u64) * rq->wq_ctrl.buf.npages;
676 in = kvzalloc(inlen, GFP_KERNEL);
680 rqc = MLX5_ADDR_OF(create_rq_in, in, ctx);
681 wq = MLX5_ADDR_OF(rqc, rqc, wq);
683 memcpy(rqc, param->rqc, sizeof(param->rqc));
685 MLX5_SET(rqc, rqc, cqn, rq->cq.mcq.cqn);
686 MLX5_SET(rqc, rqc, state, MLX5_RQC_STATE_RST);
687 MLX5_SET(wq, wq, log_wq_pg_sz, rq->wq_ctrl.buf.page_shift -
688 MLX5_ADAPTER_PAGE_SHIFT);
689 MLX5_SET64(wq, wq, dbr_addr, rq->wq_ctrl.db.dma);
691 mlx5_fill_page_frag_array(&rq->wq_ctrl.buf,
692 (__be64 *)MLX5_ADDR_OF(wq, wq, pas));
694 err = mlx5_core_create_rq(mdev, in, inlen, &rq->rqn);
701 int mlx5e_modify_rq_state(struct mlx5e_rq *rq, int curr_state, int next_state)
703 struct mlx5_core_dev *mdev = rq->mdev;
710 inlen = MLX5_ST_SZ_BYTES(modify_rq_in);
711 in = kvzalloc(inlen, GFP_KERNEL);
715 if (curr_state == MLX5_RQC_STATE_RST && next_state == MLX5_RQC_STATE_RDY)
716 mlx5e_rqwq_reset(rq);
718 rqc = MLX5_ADDR_OF(modify_rq_in, in, ctx);
720 MLX5_SET(modify_rq_in, in, rq_state, curr_state);
721 MLX5_SET(rqc, rqc, state, next_state);
723 err = mlx5_core_modify_rq(mdev, rq->rqn, in, inlen);
730 static int mlx5e_modify_rq_scatter_fcs(struct mlx5e_rq *rq, bool enable)
732 struct mlx5e_channel *c = rq->channel;
733 struct mlx5e_priv *priv = c->priv;
734 struct mlx5_core_dev *mdev = priv->mdev;
741 inlen = MLX5_ST_SZ_BYTES(modify_rq_in);
742 in = kvzalloc(inlen, GFP_KERNEL);
746 rqc = MLX5_ADDR_OF(modify_rq_in, in, ctx);
748 MLX5_SET(modify_rq_in, in, rq_state, MLX5_RQC_STATE_RDY);
749 MLX5_SET64(modify_rq_in, in, modify_bitmask,
750 MLX5_MODIFY_RQ_IN_MODIFY_BITMASK_SCATTER_FCS);
751 MLX5_SET(rqc, rqc, scatter_fcs, enable);
752 MLX5_SET(rqc, rqc, state, MLX5_RQC_STATE_RDY);
754 err = mlx5_core_modify_rq(mdev, rq->rqn, in, inlen);
761 static int mlx5e_modify_rq_vsd(struct mlx5e_rq *rq, bool vsd)
763 struct mlx5e_channel *c = rq->channel;
764 struct mlx5_core_dev *mdev = c->mdev;
770 inlen = MLX5_ST_SZ_BYTES(modify_rq_in);
771 in = kvzalloc(inlen, GFP_KERNEL);
775 rqc = MLX5_ADDR_OF(modify_rq_in, in, ctx);
777 MLX5_SET(modify_rq_in, in, rq_state, MLX5_RQC_STATE_RDY);
778 MLX5_SET64(modify_rq_in, in, modify_bitmask,
779 MLX5_MODIFY_RQ_IN_MODIFY_BITMASK_VSD);
780 MLX5_SET(rqc, rqc, vsd, vsd);
781 MLX5_SET(rqc, rqc, state, MLX5_RQC_STATE_RDY);
783 err = mlx5_core_modify_rq(mdev, rq->rqn, in, inlen);
790 static void mlx5e_destroy_rq(struct mlx5e_rq *rq)
792 mlx5_core_destroy_rq(rq->mdev, rq->rqn);
795 int mlx5e_wait_for_min_rx_wqes(struct mlx5e_rq *rq, int wait_time)
797 unsigned long exp_time = jiffies + msecs_to_jiffies(wait_time);
798 struct mlx5e_channel *c = rq->channel;
800 u16 min_wqes = mlx5_min_rx_wqes(rq->wq_type, mlx5e_rqwq_get_size(rq));
803 if (mlx5e_rqwq_get_cur_sz(rq) >= min_wqes)
807 } while (time_before(jiffies, exp_time));
809 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",
810 c->ix, rq->rqn, mlx5e_rqwq_get_cur_sz(rq), min_wqes);
812 mlx5e_reporter_rx_timeout(rq);
816 void mlx5e_free_rx_descs(struct mlx5e_rq *rq)
821 if (rq->wq_type == MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ) {
822 struct mlx5_wq_ll *wq = &rq->mpwqe.wq;
826 /* Outstanding UMR WQEs (in progress) start at wq->head */
827 for (i = 0; i < rq->mpwqe.umr_in_progress; i++) {
828 rq->dealloc_wqe(rq, head);
829 head = mlx5_wq_ll_get_wqe_next_ix(wq, head);
832 while (!mlx5_wq_ll_is_empty(wq)) {
833 struct mlx5e_rx_wqe_ll *wqe;
835 wqe_ix_be = *wq->tail_next;
836 wqe_ix = be16_to_cpu(wqe_ix_be);
837 wqe = mlx5_wq_ll_get_wqe(wq, wqe_ix);
838 rq->dealloc_wqe(rq, wqe_ix);
839 mlx5_wq_ll_pop(wq, wqe_ix_be,
840 &wqe->next.next_wqe_index);
843 struct mlx5_wq_cyc *wq = &rq->wqe.wq;
845 while (!mlx5_wq_cyc_is_empty(wq)) {
846 wqe_ix = mlx5_wq_cyc_get_tail(wq);
847 rq->dealloc_wqe(rq, wqe_ix);
854 int mlx5e_open_rq(struct mlx5e_channel *c, struct mlx5e_params *params,
855 struct mlx5e_rq_param *param, struct mlx5e_xsk_param *xsk,
856 struct xdp_umem *umem, struct mlx5e_rq *rq)
860 err = mlx5e_alloc_rq(c, params, xsk, umem, param, rq);
864 err = mlx5e_create_rq(rq, param);
868 err = mlx5e_modify_rq_state(rq, MLX5_RQC_STATE_RST, MLX5_RQC_STATE_RDY);
872 if (MLX5_CAP_ETH(c->mdev, cqe_checksum_full))
873 __set_bit(MLX5E_RQ_STATE_CSUM_FULL, &c->rq.state);
875 if (params->rx_dim_enabled)
876 __set_bit(MLX5E_RQ_STATE_AM, &c->rq.state);
878 /* We disable csum_complete when XDP is enabled since
879 * XDP programs might manipulate packets which will render
880 * skb->checksum incorrect.
882 if (MLX5E_GET_PFLAG(params, MLX5E_PFLAG_RX_NO_CSUM_COMPLETE) || c->xdp)
883 __set_bit(MLX5E_RQ_STATE_NO_CSUM_COMPLETE, &c->rq.state);
888 mlx5e_destroy_rq(rq);
895 void mlx5e_activate_rq(struct mlx5e_rq *rq)
897 set_bit(MLX5E_RQ_STATE_ENABLED, &rq->state);
898 mlx5e_trigger_irq(&rq->channel->icosq);
901 void mlx5e_deactivate_rq(struct mlx5e_rq *rq)
903 clear_bit(MLX5E_RQ_STATE_ENABLED, &rq->state);
904 napi_synchronize(&rq->channel->napi); /* prevent mlx5e_post_rx_wqes */
907 void mlx5e_close_rq(struct mlx5e_rq *rq)
909 cancel_work_sync(&rq->dim.work);
910 cancel_work_sync(&rq->channel->icosq.recover_work);
911 cancel_work_sync(&rq->recover_work);
912 mlx5e_destroy_rq(rq);
913 mlx5e_free_rx_descs(rq);
917 static void mlx5e_free_xdpsq_db(struct mlx5e_xdpsq *sq)
919 kvfree(sq->db.xdpi_fifo.xi);
920 kvfree(sq->db.wqe_info);
923 static int mlx5e_alloc_xdpsq_fifo(struct mlx5e_xdpsq *sq, int numa)
925 struct mlx5e_xdp_info_fifo *xdpi_fifo = &sq->db.xdpi_fifo;
926 int wq_sz = mlx5_wq_cyc_get_size(&sq->wq);
927 int dsegs_per_wq = wq_sz * MLX5_SEND_WQEBB_NUM_DS;
929 xdpi_fifo->xi = kvzalloc_node(sizeof(*xdpi_fifo->xi) * dsegs_per_wq,
934 xdpi_fifo->pc = &sq->xdpi_fifo_pc;
935 xdpi_fifo->cc = &sq->xdpi_fifo_cc;
936 xdpi_fifo->mask = dsegs_per_wq - 1;
941 static int mlx5e_alloc_xdpsq_db(struct mlx5e_xdpsq *sq, int numa)
943 int wq_sz = mlx5_wq_cyc_get_size(&sq->wq);
946 sq->db.wqe_info = kvzalloc_node(sizeof(*sq->db.wqe_info) * wq_sz,
948 if (!sq->db.wqe_info)
951 err = mlx5e_alloc_xdpsq_fifo(sq, numa);
953 mlx5e_free_xdpsq_db(sq);
960 static int mlx5e_alloc_xdpsq(struct mlx5e_channel *c,
961 struct mlx5e_params *params,
962 struct xdp_umem *umem,
963 struct mlx5e_sq_param *param,
964 struct mlx5e_xdpsq *sq,
967 void *sqc_wq = MLX5_ADDR_OF(sqc, param->sqc, wq);
968 struct mlx5_core_dev *mdev = c->mdev;
969 struct mlx5_wq_cyc *wq = &sq->wq;
973 sq->mkey_be = c->mkey_be;
975 sq->uar_map = mdev->mlx5e_res.bfreg.map;
976 sq->min_inline_mode = params->tx_min_inline_mode;
977 sq->hw_mtu = MLX5E_SW2HW_MTU(params, params->sw_mtu);
980 sq->stats = sq->umem ?
981 &c->priv->channel_stats[c->ix].xsksq :
983 &c->priv->channel_stats[c->ix].xdpsq :
984 &c->priv->channel_stats[c->ix].rq_xdpsq;
986 param->wq.db_numa_node = cpu_to_node(c->cpu);
987 err = mlx5_wq_cyc_create(mdev, ¶m->wq, sqc_wq, wq, &sq->wq_ctrl);
990 wq->db = &wq->db[MLX5_SND_DBR];
992 err = mlx5e_alloc_xdpsq_db(sq, cpu_to_node(c->cpu));
994 goto err_sq_wq_destroy;
999 mlx5_wq_destroy(&sq->wq_ctrl);
1004 static void mlx5e_free_xdpsq(struct mlx5e_xdpsq *sq)
1006 mlx5e_free_xdpsq_db(sq);
1007 mlx5_wq_destroy(&sq->wq_ctrl);
1010 static void mlx5e_free_icosq_db(struct mlx5e_icosq *sq)
1012 kvfree(sq->db.ico_wqe);
1015 static int mlx5e_alloc_icosq_db(struct mlx5e_icosq *sq, int numa)
1017 int wq_sz = mlx5_wq_cyc_get_size(&sq->wq);
1019 sq->db.ico_wqe = kvzalloc_node(array_size(wq_sz,
1020 sizeof(*sq->db.ico_wqe)),
1022 if (!sq->db.ico_wqe)
1028 static void mlx5e_icosq_err_cqe_work(struct work_struct *recover_work)
1030 struct mlx5e_icosq *sq = container_of(recover_work, struct mlx5e_icosq,
1033 mlx5e_reporter_icosq_cqe_err(sq);
1036 static int mlx5e_alloc_icosq(struct mlx5e_channel *c,
1037 struct mlx5e_sq_param *param,
1038 struct mlx5e_icosq *sq)
1040 void *sqc_wq = MLX5_ADDR_OF(sqc, param->sqc, wq);
1041 struct mlx5_core_dev *mdev = c->mdev;
1042 struct mlx5_wq_cyc *wq = &sq->wq;
1046 sq->uar_map = mdev->mlx5e_res.bfreg.map;
1048 param->wq.db_numa_node = cpu_to_node(c->cpu);
1049 err = mlx5_wq_cyc_create(mdev, ¶m->wq, sqc_wq, wq, &sq->wq_ctrl);
1052 wq->db = &wq->db[MLX5_SND_DBR];
1054 err = mlx5e_alloc_icosq_db(sq, cpu_to_node(c->cpu));
1056 goto err_sq_wq_destroy;
1058 INIT_WORK(&sq->recover_work, mlx5e_icosq_err_cqe_work);
1063 mlx5_wq_destroy(&sq->wq_ctrl);
1068 static void mlx5e_free_icosq(struct mlx5e_icosq *sq)
1070 mlx5e_free_icosq_db(sq);
1071 mlx5_wq_destroy(&sq->wq_ctrl);
1074 static void mlx5e_free_txqsq_db(struct mlx5e_txqsq *sq)
1076 kvfree(sq->db.wqe_info);
1077 kvfree(sq->db.dma_fifo);
1080 static int mlx5e_alloc_txqsq_db(struct mlx5e_txqsq *sq, int numa)
1082 int wq_sz = mlx5_wq_cyc_get_size(&sq->wq);
1083 int df_sz = wq_sz * MLX5_SEND_WQEBB_NUM_DS;
1085 sq->db.dma_fifo = kvzalloc_node(array_size(df_sz,
1086 sizeof(*sq->db.dma_fifo)),
1088 sq->db.wqe_info = kvzalloc_node(array_size(wq_sz,
1089 sizeof(*sq->db.wqe_info)),
1091 if (!sq->db.dma_fifo || !sq->db.wqe_info) {
1092 mlx5e_free_txqsq_db(sq);
1096 sq->dma_fifo_mask = df_sz - 1;
1101 static void mlx5e_tx_err_cqe_work(struct work_struct *recover_work);
1102 static int mlx5e_alloc_txqsq(struct mlx5e_channel *c,
1104 struct mlx5e_params *params,
1105 struct mlx5e_sq_param *param,
1106 struct mlx5e_txqsq *sq,
1109 void *sqc_wq = MLX5_ADDR_OF(sqc, param->sqc, wq);
1110 struct mlx5_core_dev *mdev = c->mdev;
1111 struct mlx5_wq_cyc *wq = &sq->wq;
1115 sq->tstamp = c->tstamp;
1116 sq->clock = &mdev->clock;
1117 sq->mkey_be = c->mkey_be;
1120 sq->txq_ix = txq_ix;
1121 sq->uar_map = mdev->mlx5e_res.bfreg.map;
1122 sq->min_inline_mode = params->tx_min_inline_mode;
1123 sq->hw_mtu = MLX5E_SW2HW_MTU(params, params->sw_mtu);
1124 sq->stats = &c->priv->channel_stats[c->ix].sq[tc];
1125 sq->stop_room = MLX5E_SQ_STOP_ROOM;
1126 INIT_WORK(&sq->recover_work, mlx5e_tx_err_cqe_work);
1127 if (!MLX5_CAP_ETH(mdev, wqe_vlan_insert))
1128 set_bit(MLX5E_SQ_STATE_VLAN_NEED_L2_INLINE, &sq->state);
1129 if (MLX5_IPSEC_DEV(c->priv->mdev))
1130 set_bit(MLX5E_SQ_STATE_IPSEC, &sq->state);
1131 #ifdef CONFIG_MLX5_EN_TLS
1132 if (mlx5_accel_is_tls_device(c->priv->mdev)) {
1133 set_bit(MLX5E_SQ_STATE_TLS, &sq->state);
1134 sq->stop_room += MLX5E_SQ_TLS_ROOM +
1135 mlx5e_ktls_dumps_num_wqebbs(sq, MAX_SKB_FRAGS,
1136 TLS_MAX_PAYLOAD_SIZE);
1140 param->wq.db_numa_node = cpu_to_node(c->cpu);
1141 err = mlx5_wq_cyc_create(mdev, ¶m->wq, sqc_wq, wq, &sq->wq_ctrl);
1144 wq->db = &wq->db[MLX5_SND_DBR];
1146 err = mlx5e_alloc_txqsq_db(sq, cpu_to_node(c->cpu));
1148 goto err_sq_wq_destroy;
1150 INIT_WORK(&sq->dim.work, mlx5e_tx_dim_work);
1151 sq->dim.mode = params->tx_cq_moderation.cq_period_mode;
1156 mlx5_wq_destroy(&sq->wq_ctrl);
1161 static void mlx5e_free_txqsq(struct mlx5e_txqsq *sq)
1163 mlx5e_free_txqsq_db(sq);
1164 mlx5_wq_destroy(&sq->wq_ctrl);
1167 struct mlx5e_create_sq_param {
1168 struct mlx5_wq_ctrl *wq_ctrl;
1175 static int mlx5e_create_sq(struct mlx5_core_dev *mdev,
1176 struct mlx5e_sq_param *param,
1177 struct mlx5e_create_sq_param *csp,
1186 inlen = MLX5_ST_SZ_BYTES(create_sq_in) +
1187 sizeof(u64) * csp->wq_ctrl->buf.npages;
1188 in = kvzalloc(inlen, GFP_KERNEL);
1192 sqc = MLX5_ADDR_OF(create_sq_in, in, ctx);
1193 wq = MLX5_ADDR_OF(sqc, sqc, wq);
1195 memcpy(sqc, param->sqc, sizeof(param->sqc));
1196 MLX5_SET(sqc, sqc, tis_lst_sz, csp->tis_lst_sz);
1197 MLX5_SET(sqc, sqc, tis_num_0, csp->tisn);
1198 MLX5_SET(sqc, sqc, cqn, csp->cqn);
1200 if (MLX5_CAP_ETH(mdev, wqe_inline_mode) == MLX5_CAP_INLINE_MODE_VPORT_CONTEXT)
1201 MLX5_SET(sqc, sqc, min_wqe_inline_mode, csp->min_inline_mode);
1203 MLX5_SET(sqc, sqc, state, MLX5_SQC_STATE_RST);
1204 MLX5_SET(sqc, sqc, flush_in_error_en, 1);
1206 MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_CYCLIC);
1207 MLX5_SET(wq, wq, uar_page, mdev->mlx5e_res.bfreg.index);
1208 MLX5_SET(wq, wq, log_wq_pg_sz, csp->wq_ctrl->buf.page_shift -
1209 MLX5_ADAPTER_PAGE_SHIFT);
1210 MLX5_SET64(wq, wq, dbr_addr, csp->wq_ctrl->db.dma);
1212 mlx5_fill_page_frag_array(&csp->wq_ctrl->buf,
1213 (__be64 *)MLX5_ADDR_OF(wq, wq, pas));
1215 err = mlx5_core_create_sq(mdev, in, inlen, sqn);
1222 int mlx5e_modify_sq(struct mlx5_core_dev *mdev, u32 sqn,
1223 struct mlx5e_modify_sq_param *p)
1230 inlen = MLX5_ST_SZ_BYTES(modify_sq_in);
1231 in = kvzalloc(inlen, GFP_KERNEL);
1235 sqc = MLX5_ADDR_OF(modify_sq_in, in, ctx);
1237 MLX5_SET(modify_sq_in, in, sq_state, p->curr_state);
1238 MLX5_SET(sqc, sqc, state, p->next_state);
1239 if (p->rl_update && p->next_state == MLX5_SQC_STATE_RDY) {
1240 MLX5_SET64(modify_sq_in, in, modify_bitmask, 1);
1241 MLX5_SET(sqc, sqc, packet_pacing_rate_limit_index, p->rl_index);
1244 err = mlx5_core_modify_sq(mdev, sqn, in, inlen);
1251 static void mlx5e_destroy_sq(struct mlx5_core_dev *mdev, u32 sqn)
1253 mlx5_core_destroy_sq(mdev, sqn);
1256 static int mlx5e_create_sq_rdy(struct mlx5_core_dev *mdev,
1257 struct mlx5e_sq_param *param,
1258 struct mlx5e_create_sq_param *csp,
1261 struct mlx5e_modify_sq_param msp = {0};
1264 err = mlx5e_create_sq(mdev, param, csp, sqn);
1268 msp.curr_state = MLX5_SQC_STATE_RST;
1269 msp.next_state = MLX5_SQC_STATE_RDY;
1270 err = mlx5e_modify_sq(mdev, *sqn, &msp);
1272 mlx5e_destroy_sq(mdev, *sqn);
1277 static int mlx5e_set_sq_maxrate(struct net_device *dev,
1278 struct mlx5e_txqsq *sq, u32 rate);
1280 static int mlx5e_open_txqsq(struct mlx5e_channel *c,
1283 struct mlx5e_params *params,
1284 struct mlx5e_sq_param *param,
1285 struct mlx5e_txqsq *sq,
1288 struct mlx5e_create_sq_param csp = {};
1292 err = mlx5e_alloc_txqsq(c, txq_ix, params, param, sq, tc);
1298 csp.cqn = sq->cq.mcq.cqn;
1299 csp.wq_ctrl = &sq->wq_ctrl;
1300 csp.min_inline_mode = sq->min_inline_mode;
1301 err = mlx5e_create_sq_rdy(c->mdev, param, &csp, &sq->sqn);
1303 goto err_free_txqsq;
1305 tx_rate = c->priv->tx_rates[sq->txq_ix];
1307 mlx5e_set_sq_maxrate(c->netdev, sq, tx_rate);
1309 if (params->tx_dim_enabled)
1310 sq->state |= BIT(MLX5E_SQ_STATE_AM);
1315 mlx5e_free_txqsq(sq);
1320 void mlx5e_activate_txqsq(struct mlx5e_txqsq *sq)
1322 sq->txq = netdev_get_tx_queue(sq->channel->netdev, sq->txq_ix);
1323 set_bit(MLX5E_SQ_STATE_ENABLED, &sq->state);
1324 netdev_tx_reset_queue(sq->txq);
1325 netif_tx_start_queue(sq->txq);
1328 void mlx5e_tx_disable_queue(struct netdev_queue *txq)
1330 __netif_tx_lock_bh(txq);
1331 netif_tx_stop_queue(txq);
1332 __netif_tx_unlock_bh(txq);
1335 static void mlx5e_deactivate_txqsq(struct mlx5e_txqsq *sq)
1337 struct mlx5e_channel *c = sq->channel;
1338 struct mlx5_wq_cyc *wq = &sq->wq;
1340 clear_bit(MLX5E_SQ_STATE_ENABLED, &sq->state);
1341 /* prevent netif_tx_wake_queue */
1342 napi_synchronize(&c->napi);
1344 mlx5e_tx_disable_queue(sq->txq);
1346 /* last doorbell out, godspeed .. */
1347 if (mlx5e_wqc_has_room_for(wq, sq->cc, sq->pc, 1)) {
1348 u16 pi = mlx5_wq_cyc_ctr2ix(wq, sq->pc);
1349 struct mlx5e_tx_wqe_info *wi;
1350 struct mlx5e_tx_wqe *nop;
1352 wi = &sq->db.wqe_info[pi];
1354 memset(wi, 0, sizeof(*wi));
1356 nop = mlx5e_post_nop(wq, sq->sqn, &sq->pc);
1357 mlx5e_notify_hw(wq, sq->pc, sq->uar_map, &nop->ctrl);
1361 static void mlx5e_close_txqsq(struct mlx5e_txqsq *sq)
1363 struct mlx5e_channel *c = sq->channel;
1364 struct mlx5_core_dev *mdev = c->mdev;
1365 struct mlx5_rate_limit rl = {0};
1367 cancel_work_sync(&sq->dim.work);
1368 cancel_work_sync(&sq->recover_work);
1369 mlx5e_destroy_sq(mdev, sq->sqn);
1370 if (sq->rate_limit) {
1371 rl.rate = sq->rate_limit;
1372 mlx5_rl_remove_rate(mdev, &rl);
1374 mlx5e_free_txqsq_descs(sq);
1375 mlx5e_free_txqsq(sq);
1378 static void mlx5e_tx_err_cqe_work(struct work_struct *recover_work)
1380 struct mlx5e_txqsq *sq = container_of(recover_work, struct mlx5e_txqsq,
1383 mlx5e_reporter_tx_err_cqe(sq);
1386 int mlx5e_open_icosq(struct mlx5e_channel *c, struct mlx5e_params *params,
1387 struct mlx5e_sq_param *param, struct mlx5e_icosq *sq)
1389 struct mlx5e_create_sq_param csp = {};
1392 err = mlx5e_alloc_icosq(c, param, sq);
1396 csp.cqn = sq->cq.mcq.cqn;
1397 csp.wq_ctrl = &sq->wq_ctrl;
1398 csp.min_inline_mode = params->tx_min_inline_mode;
1399 err = mlx5e_create_sq_rdy(c->mdev, param, &csp, &sq->sqn);
1401 goto err_free_icosq;
1406 mlx5e_free_icosq(sq);
1411 void mlx5e_activate_icosq(struct mlx5e_icosq *icosq)
1413 set_bit(MLX5E_SQ_STATE_ENABLED, &icosq->state);
1416 void mlx5e_deactivate_icosq(struct mlx5e_icosq *icosq)
1418 struct mlx5e_channel *c = icosq->channel;
1420 clear_bit(MLX5E_SQ_STATE_ENABLED, &icosq->state);
1421 napi_synchronize(&c->napi);
1424 void mlx5e_close_icosq(struct mlx5e_icosq *sq)
1426 struct mlx5e_channel *c = sq->channel;
1428 mlx5e_destroy_sq(c->mdev, sq->sqn);
1429 mlx5e_free_icosq(sq);
1432 int mlx5e_open_xdpsq(struct mlx5e_channel *c, struct mlx5e_params *params,
1433 struct mlx5e_sq_param *param, struct xdp_umem *umem,
1434 struct mlx5e_xdpsq *sq, bool is_redirect)
1436 struct mlx5e_create_sq_param csp = {};
1439 err = mlx5e_alloc_xdpsq(c, params, umem, param, sq, is_redirect);
1444 csp.tisn = c->priv->tisn[c->lag_port][0]; /* tc = 0 */
1445 csp.cqn = sq->cq.mcq.cqn;
1446 csp.wq_ctrl = &sq->wq_ctrl;
1447 csp.min_inline_mode = sq->min_inline_mode;
1448 set_bit(MLX5E_SQ_STATE_ENABLED, &sq->state);
1449 err = mlx5e_create_sq_rdy(c->mdev, param, &csp, &sq->sqn);
1451 goto err_free_xdpsq;
1453 mlx5e_set_xmit_fp(sq, param->is_mpw);
1455 if (!param->is_mpw) {
1456 unsigned int ds_cnt = MLX5E_XDP_TX_DS_COUNT;
1457 unsigned int inline_hdr_sz = 0;
1460 if (sq->min_inline_mode != MLX5_INLINE_MODE_NONE) {
1461 inline_hdr_sz = MLX5E_XDP_MIN_INLINE;
1465 /* Pre initialize fixed WQE fields */
1466 for (i = 0; i < mlx5_wq_cyc_get_size(&sq->wq); i++) {
1467 struct mlx5e_xdp_wqe_info *wi = &sq->db.wqe_info[i];
1468 struct mlx5e_tx_wqe *wqe = mlx5_wq_cyc_get_wqe(&sq->wq, i);
1469 struct mlx5_wqe_ctrl_seg *cseg = &wqe->ctrl;
1470 struct mlx5_wqe_eth_seg *eseg = &wqe->eth;
1471 struct mlx5_wqe_data_seg *dseg;
1473 cseg->qpn_ds = cpu_to_be32((sq->sqn << 8) | ds_cnt);
1474 eseg->inline_hdr.sz = cpu_to_be16(inline_hdr_sz);
1476 dseg = (struct mlx5_wqe_data_seg *)cseg + (ds_cnt - 1);
1477 dseg->lkey = sq->mkey_be;
1487 clear_bit(MLX5E_SQ_STATE_ENABLED, &sq->state);
1488 mlx5e_free_xdpsq(sq);
1493 void mlx5e_close_xdpsq(struct mlx5e_xdpsq *sq)
1495 struct mlx5e_channel *c = sq->channel;
1497 clear_bit(MLX5E_SQ_STATE_ENABLED, &sq->state);
1498 napi_synchronize(&c->napi);
1500 mlx5e_destroy_sq(c->mdev, sq->sqn);
1501 mlx5e_free_xdpsq_descs(sq);
1502 mlx5e_free_xdpsq(sq);
1505 static int mlx5e_alloc_cq_common(struct mlx5_core_dev *mdev,
1506 struct mlx5e_cq_param *param,
1507 struct mlx5e_cq *cq)
1509 struct mlx5_core_cq *mcq = &cq->mcq;
1515 err = mlx5_vector2eqn(mdev, param->eq_ix, &eqn_not_used, &irqn);
1519 err = mlx5_cqwq_create(mdev, ¶m->wq, param->cqc, &cq->wq,
1525 mcq->set_ci_db = cq->wq_ctrl.db.db;
1526 mcq->arm_db = cq->wq_ctrl.db.db + 1;
1527 *mcq->set_ci_db = 0;
1529 mcq->vector = param->eq_ix;
1530 mcq->comp = mlx5e_completion_event;
1531 mcq->event = mlx5e_cq_error_event;
1534 for (i = 0; i < mlx5_cqwq_get_size(&cq->wq); i++) {
1535 struct mlx5_cqe64 *cqe = mlx5_cqwq_get_wqe(&cq->wq, i);
1545 static int mlx5e_alloc_cq(struct mlx5e_channel *c,
1546 struct mlx5e_cq_param *param,
1547 struct mlx5e_cq *cq)
1549 struct mlx5_core_dev *mdev = c->priv->mdev;
1552 param->wq.buf_numa_node = cpu_to_node(c->cpu);
1553 param->wq.db_numa_node = cpu_to_node(c->cpu);
1554 param->eq_ix = c->ix;
1556 err = mlx5e_alloc_cq_common(mdev, param, cq);
1558 cq->napi = &c->napi;
1564 static void mlx5e_free_cq(struct mlx5e_cq *cq)
1566 mlx5_wq_destroy(&cq->wq_ctrl);
1569 static int mlx5e_create_cq(struct mlx5e_cq *cq, struct mlx5e_cq_param *param)
1571 u32 out[MLX5_ST_SZ_DW(create_cq_out)];
1572 struct mlx5_core_dev *mdev = cq->mdev;
1573 struct mlx5_core_cq *mcq = &cq->mcq;
1578 unsigned int irqn_not_used;
1582 err = mlx5_vector2eqn(mdev, param->eq_ix, &eqn, &irqn_not_used);
1586 inlen = MLX5_ST_SZ_BYTES(create_cq_in) +
1587 sizeof(u64) * cq->wq_ctrl.buf.npages;
1588 in = kvzalloc(inlen, GFP_KERNEL);
1592 cqc = MLX5_ADDR_OF(create_cq_in, in, cq_context);
1594 memcpy(cqc, param->cqc, sizeof(param->cqc));
1596 mlx5_fill_page_frag_array(&cq->wq_ctrl.buf,
1597 (__be64 *)MLX5_ADDR_OF(create_cq_in, in, pas));
1599 MLX5_SET(cqc, cqc, cq_period_mode, param->cq_period_mode);
1600 MLX5_SET(cqc, cqc, c_eqn, eqn);
1601 MLX5_SET(cqc, cqc, uar_page, mdev->priv.uar->index);
1602 MLX5_SET(cqc, cqc, log_page_size, cq->wq_ctrl.buf.page_shift -
1603 MLX5_ADAPTER_PAGE_SHIFT);
1604 MLX5_SET64(cqc, cqc, dbr_addr, cq->wq_ctrl.db.dma);
1606 err = mlx5_core_create_cq(mdev, mcq, in, inlen, out, sizeof(out));
1618 static void mlx5e_destroy_cq(struct mlx5e_cq *cq)
1620 mlx5_core_destroy_cq(cq->mdev, &cq->mcq);
1623 int mlx5e_open_cq(struct mlx5e_channel *c, struct dim_cq_moder moder,
1624 struct mlx5e_cq_param *param, struct mlx5e_cq *cq)
1626 struct mlx5_core_dev *mdev = c->mdev;
1629 err = mlx5e_alloc_cq(c, param, cq);
1633 err = mlx5e_create_cq(cq, param);
1637 if (MLX5_CAP_GEN(mdev, cq_moderation))
1638 mlx5_core_modify_cq_moderation(mdev, &cq->mcq, moder.usec, moder.pkts);
1647 void mlx5e_close_cq(struct mlx5e_cq *cq)
1649 mlx5e_destroy_cq(cq);
1653 static int mlx5e_open_tx_cqs(struct mlx5e_channel *c,
1654 struct mlx5e_params *params,
1655 struct mlx5e_channel_param *cparam)
1660 for (tc = 0; tc < c->num_tc; tc++) {
1661 err = mlx5e_open_cq(c, params->tx_cq_moderation,
1662 &cparam->tx_cq, &c->sq[tc].cq);
1664 goto err_close_tx_cqs;
1670 for (tc--; tc >= 0; tc--)
1671 mlx5e_close_cq(&c->sq[tc].cq);
1676 static void mlx5e_close_tx_cqs(struct mlx5e_channel *c)
1680 for (tc = 0; tc < c->num_tc; tc++)
1681 mlx5e_close_cq(&c->sq[tc].cq);
1684 static int mlx5e_open_sqs(struct mlx5e_channel *c,
1685 struct mlx5e_params *params,
1686 struct mlx5e_channel_param *cparam)
1690 for (tc = 0; tc < params->num_tc; tc++) {
1691 int txq_ix = c->ix + tc * params->num_channels;
1693 err = mlx5e_open_txqsq(c, c->priv->tisn[c->lag_port][tc], txq_ix,
1694 params, &cparam->sq, &c->sq[tc], tc);
1702 for (tc--; tc >= 0; tc--)
1703 mlx5e_close_txqsq(&c->sq[tc]);
1708 static void mlx5e_close_sqs(struct mlx5e_channel *c)
1712 for (tc = 0; tc < c->num_tc; tc++)
1713 mlx5e_close_txqsq(&c->sq[tc]);
1716 static int mlx5e_set_sq_maxrate(struct net_device *dev,
1717 struct mlx5e_txqsq *sq, u32 rate)
1719 struct mlx5e_priv *priv = netdev_priv(dev);
1720 struct mlx5_core_dev *mdev = priv->mdev;
1721 struct mlx5e_modify_sq_param msp = {0};
1722 struct mlx5_rate_limit rl = {0};
1726 if (rate == sq->rate_limit)
1730 if (sq->rate_limit) {
1731 rl.rate = sq->rate_limit;
1732 /* remove current rl index to free space to next ones */
1733 mlx5_rl_remove_rate(mdev, &rl);
1740 err = mlx5_rl_add_rate(mdev, &rl_index, &rl);
1742 netdev_err(dev, "Failed configuring rate %u: %d\n",
1748 msp.curr_state = MLX5_SQC_STATE_RDY;
1749 msp.next_state = MLX5_SQC_STATE_RDY;
1750 msp.rl_index = rl_index;
1751 msp.rl_update = true;
1752 err = mlx5e_modify_sq(mdev, sq->sqn, &msp);
1754 netdev_err(dev, "Failed configuring rate %u: %d\n",
1756 /* remove the rate from the table */
1758 mlx5_rl_remove_rate(mdev, &rl);
1762 sq->rate_limit = rate;
1766 static int mlx5e_set_tx_maxrate(struct net_device *dev, int index, u32 rate)
1768 struct mlx5e_priv *priv = netdev_priv(dev);
1769 struct mlx5_core_dev *mdev = priv->mdev;
1770 struct mlx5e_txqsq *sq = priv->txq2sq[index];
1773 if (!mlx5_rl_is_supported(mdev)) {
1774 netdev_err(dev, "Rate limiting is not supported on this device\n");
1778 /* rate is given in Mb/sec, HW config is in Kb/sec */
1781 /* Check whether rate in valid range, 0 is always valid */
1782 if (rate && !mlx5_rl_is_in_range(mdev, rate)) {
1783 netdev_err(dev, "TX rate %u, is not in range\n", rate);
1787 mutex_lock(&priv->state_lock);
1788 if (test_bit(MLX5E_STATE_OPENED, &priv->state))
1789 err = mlx5e_set_sq_maxrate(dev, sq, rate);
1791 priv->tx_rates[index] = rate;
1792 mutex_unlock(&priv->state_lock);
1797 static int mlx5e_alloc_xps_cpumask(struct mlx5e_channel *c,
1798 struct mlx5e_params *params)
1800 int num_comp_vectors = mlx5_comp_vectors_count(c->mdev);
1803 if (!zalloc_cpumask_var(&c->xps_cpumask, GFP_KERNEL))
1806 for (irq = c->ix; irq < num_comp_vectors; irq += params->num_channels) {
1807 int cpu = cpumask_first(mlx5_comp_irq_get_affinity_mask(c->mdev, irq));
1809 cpumask_set_cpu(cpu, c->xps_cpumask);
1815 static void mlx5e_free_xps_cpumask(struct mlx5e_channel *c)
1817 free_cpumask_var(c->xps_cpumask);
1820 static int mlx5e_open_queues(struct mlx5e_channel *c,
1821 struct mlx5e_params *params,
1822 struct mlx5e_channel_param *cparam)
1824 struct dim_cq_moder icocq_moder = {0, 0};
1827 err = mlx5e_open_cq(c, icocq_moder, &cparam->icosq_cq, &c->icosq.cq);
1831 err = mlx5e_open_tx_cqs(c, params, cparam);
1833 goto err_close_icosq_cq;
1835 err = mlx5e_open_cq(c, params->tx_cq_moderation, &cparam->tx_cq, &c->xdpsq.cq);
1837 goto err_close_tx_cqs;
1839 err = mlx5e_open_cq(c, params->rx_cq_moderation, &cparam->rx_cq, &c->rq.cq);
1841 goto err_close_xdp_tx_cqs;
1843 /* XDP SQ CQ params are same as normal TXQ sq CQ params */
1844 err = c->xdp ? mlx5e_open_cq(c, params->tx_cq_moderation,
1845 &cparam->tx_cq, &c->rq_xdpsq.cq) : 0;
1847 goto err_close_rx_cq;
1849 napi_enable(&c->napi);
1851 err = mlx5e_open_icosq(c, params, &cparam->icosq, &c->icosq);
1853 goto err_disable_napi;
1855 err = mlx5e_open_sqs(c, params, cparam);
1857 goto err_close_icosq;
1860 err = mlx5e_open_xdpsq(c, params, &cparam->xdp_sq, NULL,
1861 &c->rq_xdpsq, false);
1866 err = mlx5e_open_rq(c, params, &cparam->rq, NULL, NULL, &c->rq);
1868 goto err_close_xdp_sq;
1870 err = mlx5e_open_xdpsq(c, params, &cparam->xdp_sq, NULL, &c->xdpsq, true);
1877 mlx5e_close_rq(&c->rq);
1881 mlx5e_close_xdpsq(&c->rq_xdpsq);
1887 mlx5e_close_icosq(&c->icosq);
1890 napi_disable(&c->napi);
1893 mlx5e_close_cq(&c->rq_xdpsq.cq);
1896 mlx5e_close_cq(&c->rq.cq);
1898 err_close_xdp_tx_cqs:
1899 mlx5e_close_cq(&c->xdpsq.cq);
1902 mlx5e_close_tx_cqs(c);
1905 mlx5e_close_cq(&c->icosq.cq);
1910 static void mlx5e_close_queues(struct mlx5e_channel *c)
1912 mlx5e_close_xdpsq(&c->xdpsq);
1913 mlx5e_close_rq(&c->rq);
1915 mlx5e_close_xdpsq(&c->rq_xdpsq);
1917 mlx5e_close_icosq(&c->icosq);
1918 napi_disable(&c->napi);
1920 mlx5e_close_cq(&c->rq_xdpsq.cq);
1921 mlx5e_close_cq(&c->rq.cq);
1922 mlx5e_close_cq(&c->xdpsq.cq);
1923 mlx5e_close_tx_cqs(c);
1924 mlx5e_close_cq(&c->icosq.cq);
1927 static u8 mlx5e_enumerate_lag_port(struct mlx5_core_dev *mdev, int ix)
1929 u16 port_aff_bias = mlx5_core_is_pf(mdev) ? 0 : MLX5_CAP_GEN(mdev, vhca_id);
1931 return (ix + port_aff_bias) % mlx5e_get_num_lag_ports(mdev);
1934 static int mlx5e_open_channel(struct mlx5e_priv *priv, int ix,
1935 struct mlx5e_params *params,
1936 struct mlx5e_channel_param *cparam,
1937 struct xdp_umem *umem,
1938 struct mlx5e_channel **cp)
1940 int cpu = cpumask_first(mlx5_comp_irq_get_affinity_mask(priv->mdev, ix));
1941 struct net_device *netdev = priv->netdev;
1942 struct mlx5e_xsk_param xsk;
1943 struct mlx5e_channel *c;
1948 err = mlx5_vector2eqn(priv->mdev, ix, &eqn, &irq);
1952 c = kvzalloc_node(sizeof(*c), GFP_KERNEL, cpu_to_node(cpu));
1957 c->mdev = priv->mdev;
1958 c->tstamp = &priv->tstamp;
1961 c->pdev = priv->mdev->device;
1962 c->netdev = priv->netdev;
1963 c->mkey_be = cpu_to_be32(priv->mdev->mlx5e_res.mkey.key);
1964 c->num_tc = params->num_tc;
1965 c->xdp = !!params->xdp_prog;
1966 c->stats = &priv->channel_stats[ix].ch;
1967 c->irq_desc = irq_to_desc(irq);
1968 c->lag_port = mlx5e_enumerate_lag_port(priv->mdev, ix);
1970 err = mlx5e_alloc_xps_cpumask(c, params);
1972 goto err_free_channel;
1974 netif_napi_add(netdev, &c->napi, mlx5e_napi_poll, 64);
1976 err = mlx5e_open_queues(c, params, cparam);
1981 mlx5e_build_xsk_param(umem, &xsk);
1982 err = mlx5e_open_xsk(priv, params, &xsk, umem, c);
1984 goto err_close_queues;
1992 mlx5e_close_queues(c);
1995 netif_napi_del(&c->napi);
1996 mlx5e_free_xps_cpumask(c);
2004 static void mlx5e_activate_channel(struct mlx5e_channel *c)
2008 for (tc = 0; tc < c->num_tc; tc++)
2009 mlx5e_activate_txqsq(&c->sq[tc]);
2010 mlx5e_activate_icosq(&c->icosq);
2011 mlx5e_activate_rq(&c->rq);
2012 netif_set_xps_queue(c->netdev, c->xps_cpumask, c->ix);
2014 if (test_bit(MLX5E_CHANNEL_STATE_XSK, c->state))
2015 mlx5e_activate_xsk(c);
2018 static void mlx5e_deactivate_channel(struct mlx5e_channel *c)
2022 if (test_bit(MLX5E_CHANNEL_STATE_XSK, c->state))
2023 mlx5e_deactivate_xsk(c);
2025 mlx5e_deactivate_rq(&c->rq);
2026 mlx5e_deactivate_icosq(&c->icosq);
2027 for (tc = 0; tc < c->num_tc; tc++)
2028 mlx5e_deactivate_txqsq(&c->sq[tc]);
2031 static void mlx5e_close_channel(struct mlx5e_channel *c)
2033 if (test_bit(MLX5E_CHANNEL_STATE_XSK, c->state))
2035 mlx5e_close_queues(c);
2036 netif_napi_del(&c->napi);
2037 mlx5e_free_xps_cpumask(c);
2042 #define DEFAULT_FRAG_SIZE (2048)
2044 static void mlx5e_build_rq_frags_info(struct mlx5_core_dev *mdev,
2045 struct mlx5e_params *params,
2046 struct mlx5e_xsk_param *xsk,
2047 struct mlx5e_rq_frags_info *info)
2049 u32 byte_count = MLX5E_SW2HW_MTU(params, params->sw_mtu);
2050 int frag_size_max = DEFAULT_FRAG_SIZE;
2054 #ifdef CONFIG_MLX5_EN_IPSEC
2055 if (MLX5_IPSEC_DEV(mdev))
2056 byte_count += MLX5E_METADATA_ETHER_LEN;
2059 if (mlx5e_rx_is_linear_skb(params, xsk)) {
2062 frag_stride = mlx5e_rx_get_linear_frag_sz(params, xsk);
2063 frag_stride = roundup_pow_of_two(frag_stride);
2065 info->arr[0].frag_size = byte_count;
2066 info->arr[0].frag_stride = frag_stride;
2067 info->num_frags = 1;
2068 info->wqe_bulk = PAGE_SIZE / frag_stride;
2072 if (byte_count > PAGE_SIZE +
2073 (MLX5E_MAX_RX_FRAGS - 1) * frag_size_max)
2074 frag_size_max = PAGE_SIZE;
2077 while (buf_size < byte_count) {
2078 int frag_size = byte_count - buf_size;
2080 if (i < MLX5E_MAX_RX_FRAGS - 1)
2081 frag_size = min(frag_size, frag_size_max);
2083 info->arr[i].frag_size = frag_size;
2084 info->arr[i].frag_stride = roundup_pow_of_two(frag_size);
2086 buf_size += frag_size;
2089 info->num_frags = i;
2090 /* number of different wqes sharing a page */
2091 info->wqe_bulk = 1 + (info->num_frags % 2);
2094 info->wqe_bulk = max_t(u8, info->wqe_bulk, 8);
2095 info->log_num_frags = order_base_2(info->num_frags);
2098 static inline u8 mlx5e_get_rqwq_log_stride(u8 wq_type, int ndsegs)
2100 int sz = sizeof(struct mlx5_wqe_data_seg) * ndsegs;
2103 case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ:
2104 sz += sizeof(struct mlx5e_rx_wqe_ll);
2106 default: /* MLX5_WQ_TYPE_CYCLIC */
2107 sz += sizeof(struct mlx5e_rx_wqe_cyc);
2110 return order_base_2(sz);
2113 static u8 mlx5e_get_rq_log_wq_sz(void *rqc)
2115 void *wq = MLX5_ADDR_OF(rqc, rqc, wq);
2117 return MLX5_GET(wq, wq, log_wq_sz);
2120 void mlx5e_build_rq_param(struct mlx5e_priv *priv,
2121 struct mlx5e_params *params,
2122 struct mlx5e_xsk_param *xsk,
2123 struct mlx5e_rq_param *param)
2125 struct mlx5_core_dev *mdev = priv->mdev;
2126 void *rqc = param->rqc;
2127 void *wq = MLX5_ADDR_OF(rqc, rqc, wq);
2130 switch (params->rq_wq_type) {
2131 case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ:
2132 MLX5_SET(wq, wq, log_wqe_num_of_strides,
2133 mlx5e_mpwqe_get_log_num_strides(mdev, params, xsk) -
2134 MLX5_MPWQE_LOG_NUM_STRIDES_BASE);
2135 MLX5_SET(wq, wq, log_wqe_stride_size,
2136 mlx5e_mpwqe_get_log_stride_size(mdev, params, xsk) -
2137 MLX5_MPWQE_LOG_STRIDE_SZ_BASE);
2138 MLX5_SET(wq, wq, log_wq_sz, mlx5e_mpwqe_get_log_rq_size(params, xsk));
2140 default: /* MLX5_WQ_TYPE_CYCLIC */
2141 MLX5_SET(wq, wq, log_wq_sz, params->log_rq_mtu_frames);
2142 mlx5e_build_rq_frags_info(mdev, params, xsk, ¶m->frags_info);
2143 ndsegs = param->frags_info.num_frags;
2146 MLX5_SET(wq, wq, wq_type, params->rq_wq_type);
2147 MLX5_SET(wq, wq, end_padding_mode, MLX5_WQ_END_PAD_MODE_ALIGN);
2148 MLX5_SET(wq, wq, log_wq_stride,
2149 mlx5e_get_rqwq_log_stride(params->rq_wq_type, ndsegs));
2150 MLX5_SET(wq, wq, pd, mdev->mlx5e_res.pdn);
2151 MLX5_SET(rqc, rqc, counter_set_id, priv->q_counter);
2152 MLX5_SET(rqc, rqc, vsd, params->vlan_strip_disable);
2153 MLX5_SET(rqc, rqc, scatter_fcs, params->scatter_fcs_en);
2155 param->wq.buf_numa_node = dev_to_node(mdev->device);
2158 static void mlx5e_build_drop_rq_param(struct mlx5e_priv *priv,
2159 struct mlx5e_rq_param *param)
2161 struct mlx5_core_dev *mdev = priv->mdev;
2162 void *rqc = param->rqc;
2163 void *wq = MLX5_ADDR_OF(rqc, rqc, wq);
2165 MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_CYCLIC);
2166 MLX5_SET(wq, wq, log_wq_stride,
2167 mlx5e_get_rqwq_log_stride(MLX5_WQ_TYPE_CYCLIC, 1));
2168 MLX5_SET(rqc, rqc, counter_set_id, priv->drop_rq_q_counter);
2170 param->wq.buf_numa_node = dev_to_node(mdev->device);
2173 void mlx5e_build_sq_param_common(struct mlx5e_priv *priv,
2174 struct mlx5e_sq_param *param)
2176 void *sqc = param->sqc;
2177 void *wq = MLX5_ADDR_OF(sqc, sqc, wq);
2179 MLX5_SET(wq, wq, log_wq_stride, ilog2(MLX5_SEND_WQE_BB));
2180 MLX5_SET(wq, wq, pd, priv->mdev->mlx5e_res.pdn);
2182 param->wq.buf_numa_node = dev_to_node(priv->mdev->device);
2185 static void mlx5e_build_sq_param(struct mlx5e_priv *priv,
2186 struct mlx5e_params *params,
2187 struct mlx5e_sq_param *param)
2189 void *sqc = param->sqc;
2190 void *wq = MLX5_ADDR_OF(sqc, sqc, wq);
2193 allow_swp = mlx5_geneve_tx_allowed(priv->mdev) ||
2194 !!MLX5_IPSEC_DEV(priv->mdev);
2195 mlx5e_build_sq_param_common(priv, param);
2196 MLX5_SET(wq, wq, log_wq_sz, params->log_sq_size);
2197 MLX5_SET(sqc, sqc, allow_swp, allow_swp);
2200 static void mlx5e_build_common_cq_param(struct mlx5e_priv *priv,
2201 struct mlx5e_cq_param *param)
2203 void *cqc = param->cqc;
2205 MLX5_SET(cqc, cqc, uar_page, priv->mdev->priv.uar->index);
2206 if (MLX5_CAP_GEN(priv->mdev, cqe_128_always) && cache_line_size() >= 128)
2207 MLX5_SET(cqc, cqc, cqe_sz, CQE_STRIDE_128_PAD);
2210 void mlx5e_build_rx_cq_param(struct mlx5e_priv *priv,
2211 struct mlx5e_params *params,
2212 struct mlx5e_xsk_param *xsk,
2213 struct mlx5e_cq_param *param)
2215 struct mlx5_core_dev *mdev = priv->mdev;
2216 void *cqc = param->cqc;
2219 switch (params->rq_wq_type) {
2220 case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ:
2221 log_cq_size = mlx5e_mpwqe_get_log_rq_size(params, xsk) +
2222 mlx5e_mpwqe_get_log_num_strides(mdev, params, xsk);
2224 default: /* MLX5_WQ_TYPE_CYCLIC */
2225 log_cq_size = params->log_rq_mtu_frames;
2228 MLX5_SET(cqc, cqc, log_cq_size, log_cq_size);
2229 if (MLX5E_GET_PFLAG(params, MLX5E_PFLAG_RX_CQE_COMPRESS)) {
2230 MLX5_SET(cqc, cqc, mini_cqe_res_format, MLX5_CQE_FORMAT_CSUM);
2231 MLX5_SET(cqc, cqc, cqe_comp_en, 1);
2234 mlx5e_build_common_cq_param(priv, param);
2235 param->cq_period_mode = params->rx_cq_moderation.cq_period_mode;
2238 void mlx5e_build_tx_cq_param(struct mlx5e_priv *priv,
2239 struct mlx5e_params *params,
2240 struct mlx5e_cq_param *param)
2242 void *cqc = param->cqc;
2244 MLX5_SET(cqc, cqc, log_cq_size, params->log_sq_size);
2246 mlx5e_build_common_cq_param(priv, param);
2247 param->cq_period_mode = params->tx_cq_moderation.cq_period_mode;
2250 void mlx5e_build_ico_cq_param(struct mlx5e_priv *priv,
2252 struct mlx5e_cq_param *param)
2254 void *cqc = param->cqc;
2256 MLX5_SET(cqc, cqc, log_cq_size, log_wq_size);
2258 mlx5e_build_common_cq_param(priv, param);
2260 param->cq_period_mode = DIM_CQ_PERIOD_MODE_START_FROM_EQE;
2263 void mlx5e_build_icosq_param(struct mlx5e_priv *priv,
2265 struct mlx5e_sq_param *param)
2267 void *sqc = param->sqc;
2268 void *wq = MLX5_ADDR_OF(sqc, sqc, wq);
2270 mlx5e_build_sq_param_common(priv, param);
2272 MLX5_SET(wq, wq, log_wq_sz, log_wq_size);
2273 MLX5_SET(sqc, sqc, reg_umr, MLX5_CAP_ETH(priv->mdev, reg_umr_sq));
2276 void mlx5e_build_xdpsq_param(struct mlx5e_priv *priv,
2277 struct mlx5e_params *params,
2278 struct mlx5e_sq_param *param)
2280 void *sqc = param->sqc;
2281 void *wq = MLX5_ADDR_OF(sqc, sqc, wq);
2283 mlx5e_build_sq_param_common(priv, param);
2284 MLX5_SET(wq, wq, log_wq_sz, params->log_sq_size);
2285 param->is_mpw = MLX5E_GET_PFLAG(params, MLX5E_PFLAG_XDP_TX_MPWQE);
2288 static u8 mlx5e_build_icosq_log_wq_sz(struct mlx5e_params *params,
2289 struct mlx5e_rq_param *rqp)
2291 switch (params->rq_wq_type) {
2292 case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ:
2293 return order_base_2(MLX5E_UMR_WQEBBS) +
2294 mlx5e_get_rq_log_wq_sz(rqp->rqc);
2295 default: /* MLX5_WQ_TYPE_CYCLIC */
2296 return MLX5E_PARAMS_MINIMUM_LOG_SQ_SIZE;
2300 static void mlx5e_build_channel_param(struct mlx5e_priv *priv,
2301 struct mlx5e_params *params,
2302 struct mlx5e_channel_param *cparam)
2306 mlx5e_build_rq_param(priv, params, NULL, &cparam->rq);
2308 icosq_log_wq_sz = mlx5e_build_icosq_log_wq_sz(params, &cparam->rq);
2310 mlx5e_build_sq_param(priv, params, &cparam->sq);
2311 mlx5e_build_xdpsq_param(priv, params, &cparam->xdp_sq);
2312 mlx5e_build_icosq_param(priv, icosq_log_wq_sz, &cparam->icosq);
2313 mlx5e_build_rx_cq_param(priv, params, NULL, &cparam->rx_cq);
2314 mlx5e_build_tx_cq_param(priv, params, &cparam->tx_cq);
2315 mlx5e_build_ico_cq_param(priv, icosq_log_wq_sz, &cparam->icosq_cq);
2318 int mlx5e_open_channels(struct mlx5e_priv *priv,
2319 struct mlx5e_channels *chs)
2321 struct mlx5e_channel_param *cparam;
2325 chs->num = chs->params.num_channels;
2327 chs->c = kcalloc(chs->num, sizeof(struct mlx5e_channel *), GFP_KERNEL);
2328 cparam = kvzalloc(sizeof(struct mlx5e_channel_param), GFP_KERNEL);
2329 if (!chs->c || !cparam)
2332 mlx5e_build_channel_param(priv, &chs->params, cparam);
2333 for (i = 0; i < chs->num; i++) {
2334 struct xdp_umem *umem = NULL;
2336 if (chs->params.xdp_prog)
2337 umem = mlx5e_xsk_get_umem(&chs->params, chs->params.xsk, i);
2339 err = mlx5e_open_channel(priv, i, &chs->params, cparam, umem, &chs->c[i]);
2341 goto err_close_channels;
2344 mlx5e_health_channels_update(priv);
2349 for (i--; i >= 0; i--)
2350 mlx5e_close_channel(chs->c[i]);
2359 static void mlx5e_activate_channels(struct mlx5e_channels *chs)
2363 for (i = 0; i < chs->num; i++)
2364 mlx5e_activate_channel(chs->c[i]);
2367 #define MLX5E_RQ_WQES_TIMEOUT 20000 /* msecs */
2369 static int mlx5e_wait_channels_min_rx_wqes(struct mlx5e_channels *chs)
2374 for (i = 0; i < chs->num; i++) {
2375 int timeout = err ? 0 : MLX5E_RQ_WQES_TIMEOUT;
2377 err |= mlx5e_wait_for_min_rx_wqes(&chs->c[i]->rq, timeout);
2379 /* Don't wait on the XSK RQ, because the newer xdpsock sample
2380 * doesn't provide any Fill Ring entries at the setup stage.
2384 return err ? -ETIMEDOUT : 0;
2387 static void mlx5e_deactivate_channels(struct mlx5e_channels *chs)
2391 for (i = 0; i < chs->num; i++)
2392 mlx5e_deactivate_channel(chs->c[i]);
2395 void mlx5e_close_channels(struct mlx5e_channels *chs)
2399 for (i = 0; i < chs->num; i++)
2400 mlx5e_close_channel(chs->c[i]);
2407 mlx5e_create_rqt(struct mlx5e_priv *priv, int sz, struct mlx5e_rqt *rqt)
2409 struct mlx5_core_dev *mdev = priv->mdev;
2416 inlen = MLX5_ST_SZ_BYTES(create_rqt_in) + sizeof(u32) * sz;
2417 in = kvzalloc(inlen, GFP_KERNEL);
2421 rqtc = MLX5_ADDR_OF(create_rqt_in, in, rqt_context);
2423 MLX5_SET(rqtc, rqtc, rqt_actual_size, sz);
2424 MLX5_SET(rqtc, rqtc, rqt_max_size, sz);
2426 for (i = 0; i < sz; i++)
2427 MLX5_SET(rqtc, rqtc, rq_num[i], priv->drop_rq.rqn);
2429 err = mlx5_core_create_rqt(mdev, in, inlen, &rqt->rqtn);
2431 rqt->enabled = true;
2437 void mlx5e_destroy_rqt(struct mlx5e_priv *priv, struct mlx5e_rqt *rqt)
2439 rqt->enabled = false;
2440 mlx5_core_destroy_rqt(priv->mdev, rqt->rqtn);
2443 int mlx5e_create_indirect_rqt(struct mlx5e_priv *priv)
2445 struct mlx5e_rqt *rqt = &priv->indir_rqt;
2448 err = mlx5e_create_rqt(priv, MLX5E_INDIR_RQT_SIZE, rqt);
2450 mlx5_core_warn(priv->mdev, "create indirect rqts failed, %d\n", err);
2454 int mlx5e_create_direct_rqts(struct mlx5e_priv *priv, struct mlx5e_tir *tirs)
2459 for (ix = 0; ix < priv->max_nch; ix++) {
2460 err = mlx5e_create_rqt(priv, 1 /*size */, &tirs[ix].rqt);
2462 goto err_destroy_rqts;
2468 mlx5_core_warn(priv->mdev, "create rqts failed, %d\n", err);
2469 for (ix--; ix >= 0; ix--)
2470 mlx5e_destroy_rqt(priv, &tirs[ix].rqt);
2475 void mlx5e_destroy_direct_rqts(struct mlx5e_priv *priv, struct mlx5e_tir *tirs)
2479 for (i = 0; i < priv->max_nch; i++)
2480 mlx5e_destroy_rqt(priv, &tirs[i].rqt);
2483 static int mlx5e_rx_hash_fn(int hfunc)
2485 return (hfunc == ETH_RSS_HASH_TOP) ?
2486 MLX5_RX_HASH_FN_TOEPLITZ :
2487 MLX5_RX_HASH_FN_INVERTED_XOR8;
2490 int mlx5e_bits_invert(unsigned long a, int size)
2495 for (i = 0; i < size; i++)
2496 inv |= (test_bit(size - i - 1, &a) ? 1 : 0) << i;
2501 static void mlx5e_fill_rqt_rqns(struct mlx5e_priv *priv, int sz,
2502 struct mlx5e_redirect_rqt_param rrp, void *rqtc)
2506 for (i = 0; i < sz; i++) {
2512 if (rrp.rss.hfunc == ETH_RSS_HASH_XOR)
2513 ix = mlx5e_bits_invert(i, ilog2(sz));
2515 ix = priv->rss_params.indirection_rqt[ix];
2516 rqn = rrp.rss.channels->c[ix]->rq.rqn;
2520 MLX5_SET(rqtc, rqtc, rq_num[i], rqn);
2524 int mlx5e_redirect_rqt(struct mlx5e_priv *priv, u32 rqtn, int sz,
2525 struct mlx5e_redirect_rqt_param rrp)
2527 struct mlx5_core_dev *mdev = priv->mdev;
2533 inlen = MLX5_ST_SZ_BYTES(modify_rqt_in) + sizeof(u32) * sz;
2534 in = kvzalloc(inlen, GFP_KERNEL);
2538 rqtc = MLX5_ADDR_OF(modify_rqt_in, in, ctx);
2540 MLX5_SET(rqtc, rqtc, rqt_actual_size, sz);
2541 MLX5_SET(modify_rqt_in, in, bitmask.rqn_list, 1);
2542 mlx5e_fill_rqt_rqns(priv, sz, rrp, rqtc);
2543 err = mlx5_core_modify_rqt(mdev, rqtn, in, inlen);
2549 static u32 mlx5e_get_direct_rqn(struct mlx5e_priv *priv, int ix,
2550 struct mlx5e_redirect_rqt_param rrp)
2555 if (ix >= rrp.rss.channels->num)
2556 return priv->drop_rq.rqn;
2558 return rrp.rss.channels->c[ix]->rq.rqn;
2561 static void mlx5e_redirect_rqts(struct mlx5e_priv *priv,
2562 struct mlx5e_redirect_rqt_param rrp)
2567 if (priv->indir_rqt.enabled) {
2569 rqtn = priv->indir_rqt.rqtn;
2570 mlx5e_redirect_rqt(priv, rqtn, MLX5E_INDIR_RQT_SIZE, rrp);
2573 for (ix = 0; ix < priv->max_nch; ix++) {
2574 struct mlx5e_redirect_rqt_param direct_rrp = {
2577 .rqn = mlx5e_get_direct_rqn(priv, ix, rrp)
2581 /* Direct RQ Tables */
2582 if (!priv->direct_tir[ix].rqt.enabled)
2585 rqtn = priv->direct_tir[ix].rqt.rqtn;
2586 mlx5e_redirect_rqt(priv, rqtn, 1, direct_rrp);
2590 static void mlx5e_redirect_rqts_to_channels(struct mlx5e_priv *priv,
2591 struct mlx5e_channels *chs)
2593 struct mlx5e_redirect_rqt_param rrp = {
2598 .hfunc = priv->rss_params.hfunc,
2603 mlx5e_redirect_rqts(priv, rrp);
2606 static void mlx5e_redirect_rqts_to_drop(struct mlx5e_priv *priv)
2608 struct mlx5e_redirect_rqt_param drop_rrp = {
2611 .rqn = priv->drop_rq.rqn,
2615 mlx5e_redirect_rqts(priv, drop_rrp);
2618 static const struct mlx5e_tirc_config tirc_default_config[MLX5E_NUM_INDIR_TIRS] = {
2619 [MLX5E_TT_IPV4_TCP] = { .l3_prot_type = MLX5_L3_PROT_TYPE_IPV4,
2620 .l4_prot_type = MLX5_L4_PROT_TYPE_TCP,
2621 .rx_hash_fields = MLX5_HASH_IP_L4PORTS,
2623 [MLX5E_TT_IPV6_TCP] = { .l3_prot_type = MLX5_L3_PROT_TYPE_IPV6,
2624 .l4_prot_type = MLX5_L4_PROT_TYPE_TCP,
2625 .rx_hash_fields = MLX5_HASH_IP_L4PORTS,
2627 [MLX5E_TT_IPV4_UDP] = { .l3_prot_type = MLX5_L3_PROT_TYPE_IPV4,
2628 .l4_prot_type = MLX5_L4_PROT_TYPE_UDP,
2629 .rx_hash_fields = MLX5_HASH_IP_L4PORTS,
2631 [MLX5E_TT_IPV6_UDP] = { .l3_prot_type = MLX5_L3_PROT_TYPE_IPV6,
2632 .l4_prot_type = MLX5_L4_PROT_TYPE_UDP,
2633 .rx_hash_fields = MLX5_HASH_IP_L4PORTS,
2635 [MLX5E_TT_IPV4_IPSEC_AH] = { .l3_prot_type = MLX5_L3_PROT_TYPE_IPV4,
2637 .rx_hash_fields = MLX5_HASH_IP_IPSEC_SPI,
2639 [MLX5E_TT_IPV6_IPSEC_AH] = { .l3_prot_type = MLX5_L3_PROT_TYPE_IPV6,
2641 .rx_hash_fields = MLX5_HASH_IP_IPSEC_SPI,
2643 [MLX5E_TT_IPV4_IPSEC_ESP] = { .l3_prot_type = MLX5_L3_PROT_TYPE_IPV4,
2645 .rx_hash_fields = MLX5_HASH_IP_IPSEC_SPI,
2647 [MLX5E_TT_IPV6_IPSEC_ESP] = { .l3_prot_type = MLX5_L3_PROT_TYPE_IPV6,
2649 .rx_hash_fields = MLX5_HASH_IP_IPSEC_SPI,
2651 [MLX5E_TT_IPV4] = { .l3_prot_type = MLX5_L3_PROT_TYPE_IPV4,
2653 .rx_hash_fields = MLX5_HASH_IP,
2655 [MLX5E_TT_IPV6] = { .l3_prot_type = MLX5_L3_PROT_TYPE_IPV6,
2657 .rx_hash_fields = MLX5_HASH_IP,
2661 struct mlx5e_tirc_config mlx5e_tirc_get_default_config(enum mlx5e_traffic_types tt)
2663 return tirc_default_config[tt];
2666 static void mlx5e_build_tir_ctx_lro(struct mlx5e_params *params, void *tirc)
2668 if (!params->lro_en)
2671 #define ROUGH_MAX_L2_L3_HDR_SZ 256
2673 MLX5_SET(tirc, tirc, lro_enable_mask,
2674 MLX5_TIRC_LRO_ENABLE_MASK_IPV4_LRO |
2675 MLX5_TIRC_LRO_ENABLE_MASK_IPV6_LRO);
2676 MLX5_SET(tirc, tirc, lro_max_ip_payload_size,
2677 (MLX5E_PARAMS_DEFAULT_LRO_WQE_SZ - ROUGH_MAX_L2_L3_HDR_SZ) >> 8);
2678 MLX5_SET(tirc, tirc, lro_timeout_period_usecs, params->lro_timeout);
2681 void mlx5e_build_indir_tir_ctx_hash(struct mlx5e_rss_params *rss_params,
2682 const struct mlx5e_tirc_config *ttconfig,
2683 void *tirc, bool inner)
2685 void *hfso = inner ? MLX5_ADDR_OF(tirc, tirc, rx_hash_field_selector_inner) :
2686 MLX5_ADDR_OF(tirc, tirc, rx_hash_field_selector_outer);
2688 MLX5_SET(tirc, tirc, rx_hash_fn, mlx5e_rx_hash_fn(rss_params->hfunc));
2689 if (rss_params->hfunc == ETH_RSS_HASH_TOP) {
2690 void *rss_key = MLX5_ADDR_OF(tirc, tirc,
2691 rx_hash_toeplitz_key);
2692 size_t len = MLX5_FLD_SZ_BYTES(tirc,
2693 rx_hash_toeplitz_key);
2695 MLX5_SET(tirc, tirc, rx_hash_symmetric, 1);
2696 memcpy(rss_key, rss_params->toeplitz_hash_key, len);
2698 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
2699 ttconfig->l3_prot_type);
2700 MLX5_SET(rx_hash_field_select, hfso, l4_prot_type,
2701 ttconfig->l4_prot_type);
2702 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
2703 ttconfig->rx_hash_fields);
2706 static void mlx5e_update_rx_hash_fields(struct mlx5e_tirc_config *ttconfig,
2707 enum mlx5e_traffic_types tt,
2710 *ttconfig = tirc_default_config[tt];
2711 ttconfig->rx_hash_fields = rx_hash_fields;
2714 void mlx5e_modify_tirs_hash(struct mlx5e_priv *priv, void *in, int inlen)
2716 void *tirc = MLX5_ADDR_OF(modify_tir_in, in, ctx);
2717 struct mlx5e_rss_params *rss = &priv->rss_params;
2718 struct mlx5_core_dev *mdev = priv->mdev;
2719 int ctxlen = MLX5_ST_SZ_BYTES(tirc);
2720 struct mlx5e_tirc_config ttconfig;
2723 MLX5_SET(modify_tir_in, in, bitmask.hash, 1);
2725 for (tt = 0; tt < MLX5E_NUM_INDIR_TIRS; tt++) {
2726 memset(tirc, 0, ctxlen);
2727 mlx5e_update_rx_hash_fields(&ttconfig, tt,
2728 rss->rx_hash_fields[tt]);
2729 mlx5e_build_indir_tir_ctx_hash(rss, &ttconfig, tirc, false);
2730 mlx5_core_modify_tir(mdev, priv->indir_tir[tt].tirn, in, inlen);
2733 if (!mlx5e_tunnel_inner_ft_supported(priv->mdev))
2736 for (tt = 0; tt < MLX5E_NUM_INDIR_TIRS; tt++) {
2737 memset(tirc, 0, ctxlen);
2738 mlx5e_update_rx_hash_fields(&ttconfig, tt,
2739 rss->rx_hash_fields[tt]);
2740 mlx5e_build_indir_tir_ctx_hash(rss, &ttconfig, tirc, true);
2741 mlx5_core_modify_tir(mdev, priv->inner_indir_tir[tt].tirn, in,
2746 static int mlx5e_modify_tirs_lro(struct mlx5e_priv *priv)
2748 struct mlx5_core_dev *mdev = priv->mdev;
2757 inlen = MLX5_ST_SZ_BYTES(modify_tir_in);
2758 in = kvzalloc(inlen, GFP_KERNEL);
2762 MLX5_SET(modify_tir_in, in, bitmask.lro, 1);
2763 tirc = MLX5_ADDR_OF(modify_tir_in, in, ctx);
2765 mlx5e_build_tir_ctx_lro(&priv->channels.params, tirc);
2767 for (tt = 0; tt < MLX5E_NUM_INDIR_TIRS; tt++) {
2768 err = mlx5_core_modify_tir(mdev, priv->indir_tir[tt].tirn, in,
2774 for (ix = 0; ix < priv->max_nch; ix++) {
2775 err = mlx5_core_modify_tir(mdev, priv->direct_tir[ix].tirn,
2787 static int mlx5e_set_mtu(struct mlx5_core_dev *mdev,
2788 struct mlx5e_params *params, u16 mtu)
2790 u16 hw_mtu = MLX5E_SW2HW_MTU(params, mtu);
2793 err = mlx5_set_port_mtu(mdev, hw_mtu, 1);
2797 /* Update vport context MTU */
2798 mlx5_modify_nic_vport_mtu(mdev, hw_mtu);
2802 static void mlx5e_query_mtu(struct mlx5_core_dev *mdev,
2803 struct mlx5e_params *params, u16 *mtu)
2808 err = mlx5_query_nic_vport_mtu(mdev, &hw_mtu);
2809 if (err || !hw_mtu) /* fallback to port oper mtu */
2810 mlx5_query_port_oper_mtu(mdev, &hw_mtu, 1);
2812 *mtu = MLX5E_HW2SW_MTU(params, hw_mtu);
2815 int mlx5e_set_dev_port_mtu(struct mlx5e_priv *priv)
2817 struct mlx5e_params *params = &priv->channels.params;
2818 struct net_device *netdev = priv->netdev;
2819 struct mlx5_core_dev *mdev = priv->mdev;
2823 err = mlx5e_set_mtu(mdev, params, params->sw_mtu);
2827 mlx5e_query_mtu(mdev, params, &mtu);
2828 if (mtu != params->sw_mtu)
2829 netdev_warn(netdev, "%s: VPort MTU %d is different than netdev mtu %d\n",
2830 __func__, mtu, params->sw_mtu);
2832 params->sw_mtu = mtu;
2836 void mlx5e_set_netdev_mtu_boundaries(struct mlx5e_priv *priv)
2838 struct mlx5e_params *params = &priv->channels.params;
2839 struct net_device *netdev = priv->netdev;
2840 struct mlx5_core_dev *mdev = priv->mdev;
2843 /* MTU range: 68 - hw-specific max */
2844 netdev->min_mtu = ETH_MIN_MTU;
2846 mlx5_query_port_max_mtu(mdev, &max_mtu, 1);
2847 netdev->max_mtu = min_t(unsigned int, MLX5E_HW2SW_MTU(params, max_mtu),
2851 static void mlx5e_netdev_set_tcs(struct net_device *netdev)
2853 struct mlx5e_priv *priv = netdev_priv(netdev);
2854 int nch = priv->channels.params.num_channels;
2855 int ntc = priv->channels.params.num_tc;
2858 netdev_reset_tc(netdev);
2863 netdev_set_num_tc(netdev, ntc);
2865 /* Map netdev TCs to offset 0
2866 * We have our own UP to TXQ mapping for QoS
2868 for (tc = 0; tc < ntc; tc++)
2869 netdev_set_tc_queue(netdev, tc, nch, 0);
2872 static void mlx5e_build_txq_maps(struct mlx5e_priv *priv)
2876 ch = priv->channels.num;
2878 for (i = 0; i < ch; i++) {
2881 for (tc = 0; tc < priv->channels.params.num_tc; tc++) {
2882 struct mlx5e_channel *c = priv->channels.c[i];
2883 struct mlx5e_txqsq *sq = &c->sq[tc];
2885 priv->txq2sq[sq->txq_ix] = sq;
2886 priv->channel_tc2realtxq[i][tc] = i + tc * ch;
2891 void mlx5e_activate_priv_channels(struct mlx5e_priv *priv)
2893 int num_txqs = priv->channels.num * priv->channels.params.num_tc;
2894 int num_rxqs = priv->channels.num * priv->profile->rq_groups;
2895 struct net_device *netdev = priv->netdev;
2897 mlx5e_netdev_set_tcs(netdev);
2898 netif_set_real_num_tx_queues(netdev, num_txqs);
2899 netif_set_real_num_rx_queues(netdev, num_rxqs);
2901 mlx5e_build_txq_maps(priv);
2902 mlx5e_activate_channels(&priv->channels);
2903 mlx5e_xdp_tx_enable(priv);
2904 netif_tx_start_all_queues(priv->netdev);
2906 if (mlx5e_is_vport_rep(priv))
2907 mlx5e_add_sqs_fwd_rules(priv);
2909 mlx5e_wait_channels_min_rx_wqes(&priv->channels);
2910 mlx5e_redirect_rqts_to_channels(priv, &priv->channels);
2912 mlx5e_xsk_redirect_rqts_to_channels(priv, &priv->channels);
2915 void mlx5e_deactivate_priv_channels(struct mlx5e_priv *priv)
2917 mlx5e_xsk_redirect_rqts_to_drop(priv, &priv->channels);
2919 mlx5e_redirect_rqts_to_drop(priv);
2921 if (mlx5e_is_vport_rep(priv))
2922 mlx5e_remove_sqs_fwd_rules(priv);
2924 /* FIXME: This is a W/A only for tx timeout watch dog false alarm when
2925 * polling for inactive tx queues.
2927 netif_tx_stop_all_queues(priv->netdev);
2928 netif_tx_disable(priv->netdev);
2929 mlx5e_xdp_tx_disable(priv);
2930 mlx5e_deactivate_channels(&priv->channels);
2933 static void mlx5e_switch_priv_channels(struct mlx5e_priv *priv,
2934 struct mlx5e_channels *new_chs,
2935 mlx5e_fp_hw_modify hw_modify)
2937 struct net_device *netdev = priv->netdev;
2941 new_num_txqs = new_chs->num * new_chs->params.num_tc;
2943 carrier_ok = netif_carrier_ok(netdev);
2944 netif_carrier_off(netdev);
2946 if (new_num_txqs < netdev->real_num_tx_queues)
2947 netif_set_real_num_tx_queues(netdev, new_num_txqs);
2949 mlx5e_deactivate_priv_channels(priv);
2950 mlx5e_close_channels(&priv->channels);
2952 priv->channels = *new_chs;
2954 /* New channels are ready to roll, modify HW settings if needed */
2958 priv->profile->update_rx(priv);
2959 mlx5e_activate_priv_channels(priv);
2961 /* return carrier back if needed */
2963 netif_carrier_on(netdev);
2966 int mlx5e_safe_switch_channels(struct mlx5e_priv *priv,
2967 struct mlx5e_channels *new_chs,
2968 mlx5e_fp_hw_modify hw_modify)
2972 err = mlx5e_open_channels(priv, new_chs);
2976 mlx5e_switch_priv_channels(priv, new_chs, hw_modify);
2980 int mlx5e_safe_reopen_channels(struct mlx5e_priv *priv)
2982 struct mlx5e_channels new_channels = {};
2984 new_channels.params = priv->channels.params;
2985 return mlx5e_safe_switch_channels(priv, &new_channels, NULL);
2988 void mlx5e_timestamp_init(struct mlx5e_priv *priv)
2990 priv->tstamp.tx_type = HWTSTAMP_TX_OFF;
2991 priv->tstamp.rx_filter = HWTSTAMP_FILTER_NONE;
2994 int mlx5e_open_locked(struct net_device *netdev)
2996 struct mlx5e_priv *priv = netdev_priv(netdev);
2999 set_bit(MLX5E_STATE_OPENED, &priv->state);
3001 err = mlx5e_open_channels(priv, &priv->channels);
3003 goto err_clear_state_opened_flag;
3005 priv->profile->update_rx(priv);
3006 mlx5e_activate_priv_channels(priv);
3007 if (priv->profile->update_carrier)
3008 priv->profile->update_carrier(priv);
3010 mlx5e_queue_update_stats(priv);
3013 err_clear_state_opened_flag:
3014 clear_bit(MLX5E_STATE_OPENED, &priv->state);
3018 int mlx5e_open(struct net_device *netdev)
3020 struct mlx5e_priv *priv = netdev_priv(netdev);
3023 mutex_lock(&priv->state_lock);
3024 err = mlx5e_open_locked(netdev);
3026 mlx5_set_port_admin_status(priv->mdev, MLX5_PORT_UP);
3027 mutex_unlock(&priv->state_lock);
3029 if (mlx5_vxlan_allowed(priv->mdev->vxlan))
3030 udp_tunnel_get_rx_info(netdev);
3035 int mlx5e_close_locked(struct net_device *netdev)
3037 struct mlx5e_priv *priv = netdev_priv(netdev);
3039 /* May already be CLOSED in case a previous configuration operation
3040 * (e.g RX/TX queue size change) that involves close&open failed.
3042 if (!test_bit(MLX5E_STATE_OPENED, &priv->state))
3045 clear_bit(MLX5E_STATE_OPENED, &priv->state);
3047 netif_carrier_off(priv->netdev);
3048 mlx5e_deactivate_priv_channels(priv);
3049 mlx5e_close_channels(&priv->channels);
3054 int mlx5e_close(struct net_device *netdev)
3056 struct mlx5e_priv *priv = netdev_priv(netdev);
3059 if (!netif_device_present(netdev))
3062 mutex_lock(&priv->state_lock);
3063 mlx5_set_port_admin_status(priv->mdev, MLX5_PORT_DOWN);
3064 err = mlx5e_close_locked(netdev);
3065 mutex_unlock(&priv->state_lock);
3070 static int mlx5e_alloc_drop_rq(struct mlx5_core_dev *mdev,
3071 struct mlx5e_rq *rq,
3072 struct mlx5e_rq_param *param)
3074 void *rqc = param->rqc;
3075 void *rqc_wq = MLX5_ADDR_OF(rqc, rqc, wq);
3078 param->wq.db_numa_node = param->wq.buf_numa_node;
3080 err = mlx5_wq_cyc_create(mdev, ¶m->wq, rqc_wq, &rq->wqe.wq,
3085 /* Mark as unused given "Drop-RQ" packets never reach XDP */
3086 xdp_rxq_info_unused(&rq->xdp_rxq);
3093 static int mlx5e_alloc_drop_cq(struct mlx5_core_dev *mdev,
3094 struct mlx5e_cq *cq,
3095 struct mlx5e_cq_param *param)
3097 param->wq.buf_numa_node = dev_to_node(mdev->device);
3098 param->wq.db_numa_node = dev_to_node(mdev->device);
3100 return mlx5e_alloc_cq_common(mdev, param, cq);
3103 int mlx5e_open_drop_rq(struct mlx5e_priv *priv,
3104 struct mlx5e_rq *drop_rq)
3106 struct mlx5_core_dev *mdev = priv->mdev;
3107 struct mlx5e_cq_param cq_param = {};
3108 struct mlx5e_rq_param rq_param = {};
3109 struct mlx5e_cq *cq = &drop_rq->cq;
3112 mlx5e_build_drop_rq_param(priv, &rq_param);
3114 err = mlx5e_alloc_drop_cq(mdev, cq, &cq_param);
3118 err = mlx5e_create_cq(cq, &cq_param);
3122 err = mlx5e_alloc_drop_rq(mdev, drop_rq, &rq_param);
3124 goto err_destroy_cq;
3126 err = mlx5e_create_rq(drop_rq, &rq_param);
3130 err = mlx5e_modify_rq_state(drop_rq, MLX5_RQC_STATE_RST, MLX5_RQC_STATE_RDY);
3132 mlx5_core_warn(priv->mdev, "modify_rq_state failed, rx_if_down_packets won't be counted %d\n", err);
3137 mlx5e_free_rq(drop_rq);
3140 mlx5e_destroy_cq(cq);
3148 void mlx5e_close_drop_rq(struct mlx5e_rq *drop_rq)
3150 mlx5e_destroy_rq(drop_rq);
3151 mlx5e_free_rq(drop_rq);
3152 mlx5e_destroy_cq(&drop_rq->cq);
3153 mlx5e_free_cq(&drop_rq->cq);
3156 int mlx5e_create_tis(struct mlx5_core_dev *mdev, void *in, u32 *tisn)
3158 void *tisc = MLX5_ADDR_OF(create_tis_in, in, ctx);
3160 MLX5_SET(tisc, tisc, transport_domain, mdev->mlx5e_res.td.tdn);
3162 if (MLX5_GET(tisc, tisc, tls_en))
3163 MLX5_SET(tisc, tisc, pd, mdev->mlx5e_res.pdn);
3165 if (mlx5_lag_is_lacp_owner(mdev))
3166 MLX5_SET(tisc, tisc, strict_lag_tx_port_affinity, 1);
3168 return mlx5_core_create_tis(mdev, in, MLX5_ST_SZ_BYTES(create_tis_in), tisn);
3171 void mlx5e_destroy_tis(struct mlx5_core_dev *mdev, u32 tisn)
3173 mlx5_core_destroy_tis(mdev, tisn);
3176 void mlx5e_destroy_tises(struct mlx5e_priv *priv)
3180 for (i = 0; i < mlx5e_get_num_lag_ports(priv->mdev); i++)
3181 for (tc = 0; tc < priv->profile->max_tc; tc++)
3182 mlx5e_destroy_tis(priv->mdev, priv->tisn[i][tc]);
3185 static bool mlx5e_lag_should_assign_affinity(struct mlx5_core_dev *mdev)
3187 return MLX5_CAP_GEN(mdev, lag_tx_port_affinity) && mlx5e_get_num_lag_ports(mdev) > 1;
3190 int mlx5e_create_tises(struct mlx5e_priv *priv)
3195 for (i = 0; i < mlx5e_get_num_lag_ports(priv->mdev); i++) {
3196 for (tc = 0; tc < priv->profile->max_tc; tc++) {
3197 u32 in[MLX5_ST_SZ_DW(create_tis_in)] = {};
3200 tisc = MLX5_ADDR_OF(create_tis_in, in, ctx);
3202 MLX5_SET(tisc, tisc, prio, tc << 1);
3204 if (mlx5e_lag_should_assign_affinity(priv->mdev))
3205 MLX5_SET(tisc, tisc, lag_tx_port_affinity, i + 1);
3207 err = mlx5e_create_tis(priv->mdev, in, &priv->tisn[i][tc]);
3209 goto err_close_tises;
3216 for (; i >= 0; i--) {
3217 for (tc--; tc >= 0; tc--)
3218 mlx5e_destroy_tis(priv->mdev, priv->tisn[i][tc]);
3219 tc = priv->profile->max_tc;
3225 static void mlx5e_cleanup_nic_tx(struct mlx5e_priv *priv)
3227 mlx5e_destroy_tises(priv);
3230 static void mlx5e_build_indir_tir_ctx_common(struct mlx5e_priv *priv,
3231 u32 rqtn, u32 *tirc)
3233 MLX5_SET(tirc, tirc, transport_domain, priv->mdev->mlx5e_res.td.tdn);
3234 MLX5_SET(tirc, tirc, disp_type, MLX5_TIRC_DISP_TYPE_INDIRECT);
3235 MLX5_SET(tirc, tirc, indirect_table, rqtn);
3236 MLX5_SET(tirc, tirc, tunneled_offload_en,
3237 priv->channels.params.tunneled_offload_en);
3239 mlx5e_build_tir_ctx_lro(&priv->channels.params, tirc);
3242 static void mlx5e_build_indir_tir_ctx(struct mlx5e_priv *priv,
3243 enum mlx5e_traffic_types tt,
3246 mlx5e_build_indir_tir_ctx_common(priv, priv->indir_rqt.rqtn, tirc);
3247 mlx5e_build_indir_tir_ctx_hash(&priv->rss_params,
3248 &tirc_default_config[tt], tirc, false);
3251 static void mlx5e_build_direct_tir_ctx(struct mlx5e_priv *priv, u32 rqtn, u32 *tirc)
3253 mlx5e_build_indir_tir_ctx_common(priv, rqtn, tirc);
3254 MLX5_SET(tirc, tirc, rx_hash_fn, MLX5_RX_HASH_FN_INVERTED_XOR8);
3257 static void mlx5e_build_inner_indir_tir_ctx(struct mlx5e_priv *priv,
3258 enum mlx5e_traffic_types tt,
3261 mlx5e_build_indir_tir_ctx_common(priv, priv->indir_rqt.rqtn, tirc);
3262 mlx5e_build_indir_tir_ctx_hash(&priv->rss_params,
3263 &tirc_default_config[tt], tirc, true);
3266 int mlx5e_create_indirect_tirs(struct mlx5e_priv *priv, bool inner_ttc)
3268 struct mlx5e_tir *tir;
3276 inlen = MLX5_ST_SZ_BYTES(create_tir_in);
3277 in = kvzalloc(inlen, GFP_KERNEL);
3281 for (tt = 0; tt < MLX5E_NUM_INDIR_TIRS; tt++) {
3282 memset(in, 0, inlen);
3283 tir = &priv->indir_tir[tt];
3284 tirc = MLX5_ADDR_OF(create_tir_in, in, ctx);
3285 mlx5e_build_indir_tir_ctx(priv, tt, tirc);
3286 err = mlx5e_create_tir(priv->mdev, tir, in, inlen);
3288 mlx5_core_warn(priv->mdev, "create indirect tirs failed, %d\n", err);
3289 goto err_destroy_inner_tirs;
3293 if (!inner_ttc || !mlx5e_tunnel_inner_ft_supported(priv->mdev))
3296 for (i = 0; i < MLX5E_NUM_INDIR_TIRS; i++) {
3297 memset(in, 0, inlen);
3298 tir = &priv->inner_indir_tir[i];
3299 tirc = MLX5_ADDR_OF(create_tir_in, in, ctx);
3300 mlx5e_build_inner_indir_tir_ctx(priv, i, tirc);
3301 err = mlx5e_create_tir(priv->mdev, tir, in, inlen);
3303 mlx5_core_warn(priv->mdev, "create inner indirect tirs failed, %d\n", err);
3304 goto err_destroy_inner_tirs;
3313 err_destroy_inner_tirs:
3314 for (i--; i >= 0; i--)
3315 mlx5e_destroy_tir(priv->mdev, &priv->inner_indir_tir[i]);
3317 for (tt--; tt >= 0; tt--)
3318 mlx5e_destroy_tir(priv->mdev, &priv->indir_tir[tt]);
3325 int mlx5e_create_direct_tirs(struct mlx5e_priv *priv, struct mlx5e_tir *tirs)
3327 struct mlx5e_tir *tir;
3334 inlen = MLX5_ST_SZ_BYTES(create_tir_in);
3335 in = kvzalloc(inlen, GFP_KERNEL);
3339 for (ix = 0; ix < priv->max_nch; ix++) {
3340 memset(in, 0, inlen);
3342 tirc = MLX5_ADDR_OF(create_tir_in, in, ctx);
3343 mlx5e_build_direct_tir_ctx(priv, tir->rqt.rqtn, tirc);
3344 err = mlx5e_create_tir(priv->mdev, tir, in, inlen);
3346 goto err_destroy_ch_tirs;
3351 err_destroy_ch_tirs:
3352 mlx5_core_warn(priv->mdev, "create tirs failed, %d\n", err);
3353 for (ix--; ix >= 0; ix--)
3354 mlx5e_destroy_tir(priv->mdev, &tirs[ix]);
3362 void mlx5e_destroy_indirect_tirs(struct mlx5e_priv *priv, bool inner_ttc)
3366 for (i = 0; i < MLX5E_NUM_INDIR_TIRS; i++)
3367 mlx5e_destroy_tir(priv->mdev, &priv->indir_tir[i]);
3369 if (!inner_ttc || !mlx5e_tunnel_inner_ft_supported(priv->mdev))
3372 for (i = 0; i < MLX5E_NUM_INDIR_TIRS; i++)
3373 mlx5e_destroy_tir(priv->mdev, &priv->inner_indir_tir[i]);
3376 void mlx5e_destroy_direct_tirs(struct mlx5e_priv *priv, struct mlx5e_tir *tirs)
3380 for (i = 0; i < priv->max_nch; i++)
3381 mlx5e_destroy_tir(priv->mdev, &tirs[i]);
3384 static int mlx5e_modify_channels_scatter_fcs(struct mlx5e_channels *chs, bool enable)
3389 for (i = 0; i < chs->num; i++) {
3390 err = mlx5e_modify_rq_scatter_fcs(&chs->c[i]->rq, enable);
3398 static int mlx5e_modify_channels_vsd(struct mlx5e_channels *chs, bool vsd)
3403 for (i = 0; i < chs->num; i++) {
3404 err = mlx5e_modify_rq_vsd(&chs->c[i]->rq, vsd);
3412 static int mlx5e_setup_tc_mqprio(struct mlx5e_priv *priv,
3413 struct tc_mqprio_qopt *mqprio)
3415 struct mlx5e_channels new_channels = {};
3416 u8 tc = mqprio->num_tc;
3419 mqprio->hw = TC_MQPRIO_HW_OFFLOAD_TCS;
3421 if (tc && tc != MLX5E_MAX_NUM_TC)
3424 mutex_lock(&priv->state_lock);
3426 new_channels.params = priv->channels.params;
3427 new_channels.params.num_tc = tc ? tc : 1;
3429 if (!test_bit(MLX5E_STATE_OPENED, &priv->state)) {
3430 priv->channels.params = new_channels.params;
3434 err = mlx5e_safe_switch_channels(priv, &new_channels, NULL);
3438 priv->max_opened_tc = max_t(u8, priv->max_opened_tc,
3439 new_channels.params.num_tc);
3441 mutex_unlock(&priv->state_lock);
3445 #ifdef CONFIG_MLX5_ESWITCH
3446 static int mlx5e_setup_tc_cls_flower(struct mlx5e_priv *priv,
3447 struct flow_cls_offload *cls_flower,
3448 unsigned long flags)
3450 switch (cls_flower->command) {
3451 case FLOW_CLS_REPLACE:
3452 return mlx5e_configure_flower(priv->netdev, priv, cls_flower,
3454 case FLOW_CLS_DESTROY:
3455 return mlx5e_delete_flower(priv->netdev, priv, cls_flower,
3457 case FLOW_CLS_STATS:
3458 return mlx5e_stats_flower(priv->netdev, priv, cls_flower,
3465 static int mlx5e_setup_tc_block_cb(enum tc_setup_type type, void *type_data,
3468 unsigned long flags = MLX5_TC_FLAG(INGRESS) | MLX5_TC_FLAG(NIC_OFFLOAD);
3469 struct mlx5e_priv *priv = cb_priv;
3472 case TC_SETUP_CLSFLOWER:
3473 return mlx5e_setup_tc_cls_flower(priv, type_data, flags);
3480 static LIST_HEAD(mlx5e_block_cb_list);
3482 static int mlx5e_setup_tc(struct net_device *dev, enum tc_setup_type type,
3485 struct mlx5e_priv *priv = netdev_priv(dev);
3488 #ifdef CONFIG_MLX5_ESWITCH
3489 case TC_SETUP_BLOCK: {
3490 struct flow_block_offload *f = type_data;
3492 f->unlocked_driver_cb = true;
3493 return flow_block_cb_setup_simple(type_data,
3494 &mlx5e_block_cb_list,
3495 mlx5e_setup_tc_block_cb,
3499 case TC_SETUP_QDISC_MQPRIO:
3500 return mlx5e_setup_tc_mqprio(priv, type_data);
3506 void mlx5e_fold_sw_stats64(struct mlx5e_priv *priv, struct rtnl_link_stats64 *s)
3510 for (i = 0; i < priv->max_nch; i++) {
3511 struct mlx5e_channel_stats *channel_stats = &priv->channel_stats[i];
3512 struct mlx5e_rq_stats *xskrq_stats = &channel_stats->xskrq;
3513 struct mlx5e_rq_stats *rq_stats = &channel_stats->rq;
3516 s->rx_packets += rq_stats->packets + xskrq_stats->packets;
3517 s->rx_bytes += rq_stats->bytes + xskrq_stats->bytes;
3519 for (j = 0; j < priv->max_opened_tc; j++) {
3520 struct mlx5e_sq_stats *sq_stats = &channel_stats->sq[j];
3522 s->tx_packets += sq_stats->packets;
3523 s->tx_bytes += sq_stats->bytes;
3524 s->tx_dropped += sq_stats->dropped;
3530 mlx5e_get_stats(struct net_device *dev, struct rtnl_link_stats64 *stats)
3532 struct mlx5e_priv *priv = netdev_priv(dev);
3533 struct mlx5e_vport_stats *vstats = &priv->stats.vport;
3534 struct mlx5e_pport_stats *pstats = &priv->stats.pport;
3536 if (!mlx5e_monitor_counter_supported(priv)) {
3537 /* update HW stats in background for next time */
3538 mlx5e_queue_update_stats(priv);
3541 if (mlx5e_is_uplink_rep(priv)) {
3542 stats->rx_packets = PPORT_802_3_GET(pstats, a_frames_received_ok);
3543 stats->rx_bytes = PPORT_802_3_GET(pstats, a_octets_received_ok);
3544 stats->tx_packets = PPORT_802_3_GET(pstats, a_frames_transmitted_ok);
3545 stats->tx_bytes = PPORT_802_3_GET(pstats, a_octets_transmitted_ok);
3547 mlx5e_fold_sw_stats64(priv, stats);
3550 stats->rx_dropped = priv->stats.qcnt.rx_out_of_buffer;
3552 stats->rx_length_errors =
3553 PPORT_802_3_GET(pstats, a_in_range_length_errors) +
3554 PPORT_802_3_GET(pstats, a_out_of_range_length_field) +
3555 PPORT_802_3_GET(pstats, a_frame_too_long_errors);
3556 stats->rx_crc_errors =
3557 PPORT_802_3_GET(pstats, a_frame_check_sequence_errors);
3558 stats->rx_frame_errors = PPORT_802_3_GET(pstats, a_alignment_errors);
3559 stats->tx_aborted_errors = PPORT_2863_GET(pstats, if_out_discards);
3560 stats->rx_errors = stats->rx_length_errors + stats->rx_crc_errors +
3561 stats->rx_frame_errors;
3562 stats->tx_errors = stats->tx_aborted_errors + stats->tx_carrier_errors;
3564 /* vport multicast also counts packets that are dropped due to steering
3565 * or rx out of buffer
3568 VPORT_COUNTER_GET(vstats, received_eth_multicast.packets);
3571 static void mlx5e_set_rx_mode(struct net_device *dev)
3573 struct mlx5e_priv *priv = netdev_priv(dev);
3575 queue_work(priv->wq, &priv->set_rx_mode_work);
3578 static int mlx5e_set_mac(struct net_device *netdev, void *addr)
3580 struct mlx5e_priv *priv = netdev_priv(netdev);
3581 struct sockaddr *saddr = addr;
3583 if (!is_valid_ether_addr(saddr->sa_data))
3584 return -EADDRNOTAVAIL;
3586 netif_addr_lock_bh(netdev);
3587 ether_addr_copy(netdev->dev_addr, saddr->sa_data);
3588 netif_addr_unlock_bh(netdev);
3590 queue_work(priv->wq, &priv->set_rx_mode_work);
3595 #define MLX5E_SET_FEATURE(features, feature, enable) \
3598 *features |= feature; \
3600 *features &= ~feature; \
3603 typedef int (*mlx5e_feature_handler)(struct net_device *netdev, bool enable);
3605 static int set_feature_lro(struct net_device *netdev, bool enable)
3607 struct mlx5e_priv *priv = netdev_priv(netdev);
3608 struct mlx5_core_dev *mdev = priv->mdev;
3609 struct mlx5e_channels new_channels = {};
3610 struct mlx5e_params *old_params;
3614 mutex_lock(&priv->state_lock);
3616 if (enable && priv->xsk.refcnt) {
3617 netdev_warn(netdev, "LRO is incompatible with AF_XDP (%hu XSKs are active)\n",
3623 old_params = &priv->channels.params;
3624 if (enable && !MLX5E_GET_PFLAG(old_params, MLX5E_PFLAG_RX_STRIDING_RQ)) {
3625 netdev_warn(netdev, "can't set LRO with legacy RQ\n");
3630 reset = test_bit(MLX5E_STATE_OPENED, &priv->state);
3632 new_channels.params = *old_params;
3633 new_channels.params.lro_en = enable;
3635 if (old_params->rq_wq_type != MLX5_WQ_TYPE_CYCLIC) {
3636 if (mlx5e_rx_mpwqe_is_linear_skb(mdev, old_params, NULL) ==
3637 mlx5e_rx_mpwqe_is_linear_skb(mdev, &new_channels.params, NULL))
3642 *old_params = new_channels.params;
3643 err = mlx5e_modify_tirs_lro(priv);
3647 err = mlx5e_safe_switch_channels(priv, &new_channels, mlx5e_modify_tirs_lro);
3649 mutex_unlock(&priv->state_lock);
3653 static int set_feature_cvlan_filter(struct net_device *netdev, bool enable)
3655 struct mlx5e_priv *priv = netdev_priv(netdev);
3658 mlx5e_enable_cvlan_filter(priv);
3660 mlx5e_disable_cvlan_filter(priv);
3665 #ifdef CONFIG_MLX5_ESWITCH
3666 static int set_feature_tc_num_filters(struct net_device *netdev, bool enable)
3668 struct mlx5e_priv *priv = netdev_priv(netdev);
3670 if (!enable && mlx5e_tc_num_filters(priv, MLX5_TC_FLAG(NIC_OFFLOAD))) {
3672 "Active offloaded tc filters, can't turn hw_tc_offload off\n");
3680 static int set_feature_rx_all(struct net_device *netdev, bool enable)
3682 struct mlx5e_priv *priv = netdev_priv(netdev);
3683 struct mlx5_core_dev *mdev = priv->mdev;
3685 return mlx5_set_port_fcs(mdev, !enable);
3688 static int set_feature_rx_fcs(struct net_device *netdev, bool enable)
3690 struct mlx5e_priv *priv = netdev_priv(netdev);
3693 mutex_lock(&priv->state_lock);
3695 priv->channels.params.scatter_fcs_en = enable;
3696 err = mlx5e_modify_channels_scatter_fcs(&priv->channels, enable);
3698 priv->channels.params.scatter_fcs_en = !enable;
3700 mutex_unlock(&priv->state_lock);
3705 static int set_feature_rx_vlan(struct net_device *netdev, bool enable)
3707 struct mlx5e_priv *priv = netdev_priv(netdev);
3710 mutex_lock(&priv->state_lock);
3712 priv->channels.params.vlan_strip_disable = !enable;
3713 if (!test_bit(MLX5E_STATE_OPENED, &priv->state))
3716 err = mlx5e_modify_channels_vsd(&priv->channels, !enable);
3718 priv->channels.params.vlan_strip_disable = enable;
3721 mutex_unlock(&priv->state_lock);
3726 #ifdef CONFIG_MLX5_EN_ARFS
3727 static int set_feature_arfs(struct net_device *netdev, bool enable)
3729 struct mlx5e_priv *priv = netdev_priv(netdev);
3733 err = mlx5e_arfs_enable(priv);
3735 err = mlx5e_arfs_disable(priv);
3741 static int mlx5e_handle_feature(struct net_device *netdev,
3742 netdev_features_t *features,
3743 netdev_features_t wanted_features,
3744 netdev_features_t feature,
3745 mlx5e_feature_handler feature_handler)
3747 netdev_features_t changes = wanted_features ^ netdev->features;
3748 bool enable = !!(wanted_features & feature);
3751 if (!(changes & feature))
3754 err = feature_handler(netdev, enable);
3756 netdev_err(netdev, "%s feature %pNF failed, err %d\n",
3757 enable ? "Enable" : "Disable", &feature, err);
3761 MLX5E_SET_FEATURE(features, feature, enable);
3765 int mlx5e_set_features(struct net_device *netdev, netdev_features_t features)
3767 netdev_features_t oper_features = netdev->features;
3770 #define MLX5E_HANDLE_FEATURE(feature, handler) \
3771 mlx5e_handle_feature(netdev, &oper_features, features, feature, handler)
3773 err |= MLX5E_HANDLE_FEATURE(NETIF_F_LRO, set_feature_lro);
3774 err |= MLX5E_HANDLE_FEATURE(NETIF_F_HW_VLAN_CTAG_FILTER,
3775 set_feature_cvlan_filter);
3776 #ifdef CONFIG_MLX5_ESWITCH
3777 err |= MLX5E_HANDLE_FEATURE(NETIF_F_HW_TC, set_feature_tc_num_filters);
3779 err |= MLX5E_HANDLE_FEATURE(NETIF_F_RXALL, set_feature_rx_all);
3780 err |= MLX5E_HANDLE_FEATURE(NETIF_F_RXFCS, set_feature_rx_fcs);
3781 err |= MLX5E_HANDLE_FEATURE(NETIF_F_HW_VLAN_CTAG_RX, set_feature_rx_vlan);
3782 #ifdef CONFIG_MLX5_EN_ARFS
3783 err |= MLX5E_HANDLE_FEATURE(NETIF_F_NTUPLE, set_feature_arfs);
3787 netdev->features = oper_features;
3794 static netdev_features_t mlx5e_fix_features(struct net_device *netdev,
3795 netdev_features_t features)
3797 struct mlx5e_priv *priv = netdev_priv(netdev);
3798 struct mlx5e_params *params;
3800 mutex_lock(&priv->state_lock);
3801 params = &priv->channels.params;
3802 if (!bitmap_empty(priv->fs.vlan.active_svlans, VLAN_N_VID)) {
3803 /* HW strips the outer C-tag header, this is a problem
3804 * for S-tag traffic.
3806 features &= ~NETIF_F_HW_VLAN_CTAG_RX;
3807 if (!params->vlan_strip_disable)
3808 netdev_warn(netdev, "Dropping C-tag vlan stripping offload due to S-tag vlan\n");
3810 if (!MLX5E_GET_PFLAG(params, MLX5E_PFLAG_RX_STRIDING_RQ)) {
3811 if (features & NETIF_F_LRO) {
3812 netdev_warn(netdev, "Disabling LRO, not supported in legacy RQ\n");
3813 features &= ~NETIF_F_LRO;
3817 if (MLX5E_GET_PFLAG(params, MLX5E_PFLAG_RX_CQE_COMPRESS)) {
3818 features &= ~NETIF_F_RXHASH;
3819 if (netdev->features & NETIF_F_RXHASH)
3820 netdev_warn(netdev, "Disabling rxhash, not supported when CQE compress is active\n");
3823 mutex_unlock(&priv->state_lock);
3828 static bool mlx5e_xsk_validate_mtu(struct net_device *netdev,
3829 struct mlx5e_channels *chs,
3830 struct mlx5e_params *new_params,
3831 struct mlx5_core_dev *mdev)
3835 for (ix = 0; ix < chs->params.num_channels; ix++) {
3836 struct xdp_umem *umem = mlx5e_xsk_get_umem(&chs->params, chs->params.xsk, ix);
3837 struct mlx5e_xsk_param xsk;
3842 mlx5e_build_xsk_param(umem, &xsk);
3844 if (!mlx5e_validate_xsk_param(new_params, &xsk, mdev)) {
3845 u32 hr = mlx5e_get_linear_rq_headroom(new_params, &xsk);
3846 int max_mtu_frame, max_mtu_page, max_mtu;
3848 /* Two criteria must be met:
3849 * 1. HW MTU + all headrooms <= XSK frame size.
3850 * 2. Size of SKBs allocated on XDP_PASS <= PAGE_SIZE.
3852 max_mtu_frame = MLX5E_HW2SW_MTU(new_params, xsk.chunk_size - hr);
3853 max_mtu_page = mlx5e_xdp_max_mtu(new_params, &xsk);
3854 max_mtu = min(max_mtu_frame, max_mtu_page);
3856 netdev_err(netdev, "MTU %d is too big for an XSK running on channel %hu. Try MTU <= %d\n",
3857 new_params->sw_mtu, ix, max_mtu);
3865 int mlx5e_change_mtu(struct net_device *netdev, int new_mtu,
3866 change_hw_mtu_cb set_mtu_cb)
3868 struct mlx5e_priv *priv = netdev_priv(netdev);
3869 struct mlx5e_channels new_channels = {};
3870 struct mlx5e_params *params;
3874 mutex_lock(&priv->state_lock);
3876 params = &priv->channels.params;
3878 reset = !params->lro_en;
3879 reset = reset && test_bit(MLX5E_STATE_OPENED, &priv->state);
3881 new_channels.params = *params;
3882 new_channels.params.sw_mtu = new_mtu;
3884 if (params->xdp_prog &&
3885 !mlx5e_rx_is_linear_skb(&new_channels.params, NULL)) {
3886 netdev_err(netdev, "MTU(%d) > %d is not allowed while XDP enabled\n",
3887 new_mtu, mlx5e_xdp_max_mtu(params, NULL));
3892 if (priv->xsk.refcnt &&
3893 !mlx5e_xsk_validate_mtu(netdev, &priv->channels,
3894 &new_channels.params, priv->mdev)) {
3899 if (params->rq_wq_type == MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ) {
3900 bool is_linear = mlx5e_rx_mpwqe_is_linear_skb(priv->mdev,
3901 &new_channels.params,
3903 u8 ppw_old = mlx5e_mpwqe_log_pkts_per_wqe(params, NULL);
3904 u8 ppw_new = mlx5e_mpwqe_log_pkts_per_wqe(&new_channels.params, NULL);
3906 /* If XSK is active, XSK RQs are linear. */
3907 is_linear |= priv->xsk.refcnt;
3909 /* Always reset in linear mode - hw_mtu is used in data path. */
3910 reset = reset && (is_linear || (ppw_old != ppw_new));
3914 params->sw_mtu = new_mtu;
3917 netdev->mtu = params->sw_mtu;
3921 err = mlx5e_safe_switch_channels(priv, &new_channels, set_mtu_cb);
3925 netdev->mtu = new_channels.params.sw_mtu;
3928 mutex_unlock(&priv->state_lock);
3932 static int mlx5e_change_nic_mtu(struct net_device *netdev, int new_mtu)
3934 return mlx5e_change_mtu(netdev, new_mtu, mlx5e_set_dev_port_mtu);
3937 int mlx5e_hwstamp_set(struct mlx5e_priv *priv, struct ifreq *ifr)
3939 struct hwtstamp_config config;
3942 if (!MLX5_CAP_GEN(priv->mdev, device_frequency_khz) ||
3943 (mlx5_clock_get_ptp_index(priv->mdev) == -1))
3946 if (copy_from_user(&config, ifr->ifr_data, sizeof(config)))
3949 /* TX HW timestamp */
3950 switch (config.tx_type) {
3951 case HWTSTAMP_TX_OFF:
3952 case HWTSTAMP_TX_ON:
3958 mutex_lock(&priv->state_lock);
3959 /* RX HW timestamp */
3960 switch (config.rx_filter) {
3961 case HWTSTAMP_FILTER_NONE:
3962 /* Reset CQE compression to Admin default */
3963 mlx5e_modify_rx_cqe_compression_locked(priv, priv->channels.params.rx_cqe_compress_def);
3965 case HWTSTAMP_FILTER_ALL:
3966 case HWTSTAMP_FILTER_SOME:
3967 case HWTSTAMP_FILTER_PTP_V1_L4_EVENT:
3968 case HWTSTAMP_FILTER_PTP_V1_L4_SYNC:
3969 case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ:
3970 case HWTSTAMP_FILTER_PTP_V2_L4_EVENT:
3971 case HWTSTAMP_FILTER_PTP_V2_L4_SYNC:
3972 case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ:
3973 case HWTSTAMP_FILTER_PTP_V2_L2_EVENT:
3974 case HWTSTAMP_FILTER_PTP_V2_L2_SYNC:
3975 case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ:
3976 case HWTSTAMP_FILTER_PTP_V2_EVENT:
3977 case HWTSTAMP_FILTER_PTP_V2_SYNC:
3978 case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ:
3979 case HWTSTAMP_FILTER_NTP_ALL:
3980 /* Disable CQE compression */
3981 if (MLX5E_GET_PFLAG(&priv->channels.params, MLX5E_PFLAG_RX_CQE_COMPRESS))
3982 netdev_warn(priv->netdev, "Disabling RX cqe compression\n");
3983 err = mlx5e_modify_rx_cqe_compression_locked(priv, false);
3985 netdev_err(priv->netdev, "Failed disabling cqe compression err=%d\n", err);
3986 mutex_unlock(&priv->state_lock);
3989 config.rx_filter = HWTSTAMP_FILTER_ALL;
3992 mutex_unlock(&priv->state_lock);
3996 memcpy(&priv->tstamp, &config, sizeof(config));
3997 mutex_unlock(&priv->state_lock);
3999 /* might need to fix some features */
4000 netdev_update_features(priv->netdev);
4002 return copy_to_user(ifr->ifr_data, &config,
4003 sizeof(config)) ? -EFAULT : 0;
4006 int mlx5e_hwstamp_get(struct mlx5e_priv *priv, struct ifreq *ifr)
4008 struct hwtstamp_config *cfg = &priv->tstamp;
4010 if (!MLX5_CAP_GEN(priv->mdev, device_frequency_khz))
4013 return copy_to_user(ifr->ifr_data, cfg, sizeof(*cfg)) ? -EFAULT : 0;
4016 static int mlx5e_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
4018 struct mlx5e_priv *priv = netdev_priv(dev);
4022 return mlx5e_hwstamp_set(priv, ifr);
4024 return mlx5e_hwstamp_get(priv, ifr);
4030 #ifdef CONFIG_MLX5_ESWITCH
4031 int mlx5e_set_vf_mac(struct net_device *dev, int vf, u8 *mac)
4033 struct mlx5e_priv *priv = netdev_priv(dev);
4034 struct mlx5_core_dev *mdev = priv->mdev;
4036 return mlx5_eswitch_set_vport_mac(mdev->priv.eswitch, vf + 1, mac);
4039 static int mlx5e_set_vf_vlan(struct net_device *dev, int vf, u16 vlan, u8 qos,
4042 struct mlx5e_priv *priv = netdev_priv(dev);
4043 struct mlx5_core_dev *mdev = priv->mdev;
4045 if (vlan_proto != htons(ETH_P_8021Q))
4046 return -EPROTONOSUPPORT;
4048 return mlx5_eswitch_set_vport_vlan(mdev->priv.eswitch, vf + 1,
4052 static int mlx5e_set_vf_spoofchk(struct net_device *dev, int vf, bool setting)
4054 struct mlx5e_priv *priv = netdev_priv(dev);
4055 struct mlx5_core_dev *mdev = priv->mdev;
4057 return mlx5_eswitch_set_vport_spoofchk(mdev->priv.eswitch, vf + 1, setting);
4060 static int mlx5e_set_vf_trust(struct net_device *dev, int vf, bool setting)
4062 struct mlx5e_priv *priv = netdev_priv(dev);
4063 struct mlx5_core_dev *mdev = priv->mdev;
4065 return mlx5_eswitch_set_vport_trust(mdev->priv.eswitch, vf + 1, setting);
4068 int mlx5e_set_vf_rate(struct net_device *dev, int vf, int min_tx_rate,
4071 struct mlx5e_priv *priv = netdev_priv(dev);
4072 struct mlx5_core_dev *mdev = priv->mdev;
4074 return mlx5_eswitch_set_vport_rate(mdev->priv.eswitch, vf + 1,
4075 max_tx_rate, min_tx_rate);
4078 static int mlx5_vport_link2ifla(u8 esw_link)
4081 case MLX5_VPORT_ADMIN_STATE_DOWN:
4082 return IFLA_VF_LINK_STATE_DISABLE;
4083 case MLX5_VPORT_ADMIN_STATE_UP:
4084 return IFLA_VF_LINK_STATE_ENABLE;
4086 return IFLA_VF_LINK_STATE_AUTO;
4089 static int mlx5_ifla_link2vport(u8 ifla_link)
4091 switch (ifla_link) {
4092 case IFLA_VF_LINK_STATE_DISABLE:
4093 return MLX5_VPORT_ADMIN_STATE_DOWN;
4094 case IFLA_VF_LINK_STATE_ENABLE:
4095 return MLX5_VPORT_ADMIN_STATE_UP;
4097 return MLX5_VPORT_ADMIN_STATE_AUTO;
4100 static int mlx5e_set_vf_link_state(struct net_device *dev, int vf,
4103 struct mlx5e_priv *priv = netdev_priv(dev);
4104 struct mlx5_core_dev *mdev = priv->mdev;
4106 return mlx5_eswitch_set_vport_state(mdev->priv.eswitch, vf + 1,
4107 mlx5_ifla_link2vport(link_state));
4110 int mlx5e_get_vf_config(struct net_device *dev,
4111 int vf, struct ifla_vf_info *ivi)
4113 struct mlx5e_priv *priv = netdev_priv(dev);
4114 struct mlx5_core_dev *mdev = priv->mdev;
4117 err = mlx5_eswitch_get_vport_config(mdev->priv.eswitch, vf + 1, ivi);
4120 ivi->linkstate = mlx5_vport_link2ifla(ivi->linkstate);
4124 int mlx5e_get_vf_stats(struct net_device *dev,
4125 int vf, struct ifla_vf_stats *vf_stats)
4127 struct mlx5e_priv *priv = netdev_priv(dev);
4128 struct mlx5_core_dev *mdev = priv->mdev;
4130 return mlx5_eswitch_get_vport_stats(mdev->priv.eswitch, vf + 1,
4135 struct mlx5e_vxlan_work {
4136 struct work_struct work;
4137 struct mlx5e_priv *priv;
4141 static void mlx5e_vxlan_add_work(struct work_struct *work)
4143 struct mlx5e_vxlan_work *vxlan_work =
4144 container_of(work, struct mlx5e_vxlan_work, work);
4145 struct mlx5e_priv *priv = vxlan_work->priv;
4146 u16 port = vxlan_work->port;
4148 mutex_lock(&priv->state_lock);
4149 mlx5_vxlan_add_port(priv->mdev->vxlan, port);
4150 mutex_unlock(&priv->state_lock);
4155 static void mlx5e_vxlan_del_work(struct work_struct *work)
4157 struct mlx5e_vxlan_work *vxlan_work =
4158 container_of(work, struct mlx5e_vxlan_work, work);
4159 struct mlx5e_priv *priv = vxlan_work->priv;
4160 u16 port = vxlan_work->port;
4162 mutex_lock(&priv->state_lock);
4163 mlx5_vxlan_del_port(priv->mdev->vxlan, port);
4164 mutex_unlock(&priv->state_lock);
4168 static void mlx5e_vxlan_queue_work(struct mlx5e_priv *priv, u16 port, int add)
4170 struct mlx5e_vxlan_work *vxlan_work;
4172 vxlan_work = kmalloc(sizeof(*vxlan_work), GFP_ATOMIC);
4177 INIT_WORK(&vxlan_work->work, mlx5e_vxlan_add_work);
4179 INIT_WORK(&vxlan_work->work, mlx5e_vxlan_del_work);
4181 vxlan_work->priv = priv;
4182 vxlan_work->port = port;
4183 queue_work(priv->wq, &vxlan_work->work);
4186 void mlx5e_add_vxlan_port(struct net_device *netdev, struct udp_tunnel_info *ti)
4188 struct mlx5e_priv *priv = netdev_priv(netdev);
4190 if (ti->type != UDP_TUNNEL_TYPE_VXLAN)
4193 if (!mlx5_vxlan_allowed(priv->mdev->vxlan))
4196 mlx5e_vxlan_queue_work(priv, be16_to_cpu(ti->port), 1);
4199 void mlx5e_del_vxlan_port(struct net_device *netdev, struct udp_tunnel_info *ti)
4201 struct mlx5e_priv *priv = netdev_priv(netdev);
4203 if (ti->type != UDP_TUNNEL_TYPE_VXLAN)
4206 if (!mlx5_vxlan_allowed(priv->mdev->vxlan))
4209 mlx5e_vxlan_queue_work(priv, be16_to_cpu(ti->port), 0);
4212 static netdev_features_t mlx5e_tunnel_features_check(struct mlx5e_priv *priv,
4213 struct sk_buff *skb,
4214 netdev_features_t features)
4216 unsigned int offset = 0;
4217 struct udphdr *udph;
4221 switch (vlan_get_protocol(skb)) {
4222 case htons(ETH_P_IP):
4223 proto = ip_hdr(skb)->protocol;
4225 case htons(ETH_P_IPV6):
4226 proto = ipv6_find_hdr(skb, &offset, -1, NULL, NULL);
4237 if (mlx5e_tunnel_proto_supported(priv->mdev, IPPROTO_IPIP))
4241 udph = udp_hdr(skb);
4242 port = be16_to_cpu(udph->dest);
4244 /* Verify if UDP port is being offloaded by HW */
4245 if (mlx5_vxlan_lookup_port(priv->mdev->vxlan, port))
4248 #if IS_ENABLED(CONFIG_GENEVE)
4249 /* Support Geneve offload for default UDP port */
4250 if (port == GENEVE_UDP_PORT && mlx5_geneve_tx_allowed(priv->mdev))
4256 /* Disable CSUM and GSO if the udp dport is not offloaded by HW */
4257 return features & ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK);
4260 netdev_features_t mlx5e_features_check(struct sk_buff *skb,
4261 struct net_device *netdev,
4262 netdev_features_t features)
4264 struct mlx5e_priv *priv = netdev_priv(netdev);
4266 features = vlan_features_check(skb, features);
4267 features = vxlan_features_check(skb, features);
4269 #ifdef CONFIG_MLX5_EN_IPSEC
4270 if (mlx5e_ipsec_feature_check(skb, netdev, features))
4274 /* Validate if the tunneled packet is being offloaded by HW */
4275 if (skb->encapsulation &&
4276 (features & NETIF_F_CSUM_MASK || features & NETIF_F_GSO_MASK))
4277 return mlx5e_tunnel_features_check(priv, skb, features);
4282 static void mlx5e_tx_timeout_work(struct work_struct *work)
4284 struct mlx5e_priv *priv = container_of(work, struct mlx5e_priv,
4286 bool report_failed = false;
4291 mutex_lock(&priv->state_lock);
4293 if (!test_bit(MLX5E_STATE_OPENED, &priv->state))
4296 for (i = 0; i < priv->channels.num * priv->channels.params.num_tc; i++) {
4297 struct netdev_queue *dev_queue =
4298 netdev_get_tx_queue(priv->netdev, i);
4299 struct mlx5e_txqsq *sq = priv->txq2sq[i];
4301 if (!netif_xmit_stopped(dev_queue))
4304 if (mlx5e_reporter_tx_timeout(sq))
4305 report_failed = true;
4311 err = mlx5e_safe_reopen_channels(priv);
4313 netdev_err(priv->netdev,
4314 "mlx5e_safe_reopen_channels failed recovering from a tx_timeout, err(%d).\n",
4318 mutex_unlock(&priv->state_lock);
4322 static void mlx5e_tx_timeout(struct net_device *dev, unsigned int txqueue)
4324 struct mlx5e_priv *priv = netdev_priv(dev);
4326 netdev_err(dev, "TX timeout detected\n");
4327 queue_work(priv->wq, &priv->tx_timeout_work);
4330 static int mlx5e_xdp_allowed(struct mlx5e_priv *priv, struct bpf_prog *prog)
4332 struct net_device *netdev = priv->netdev;
4333 struct mlx5e_channels new_channels = {};
4335 if (priv->channels.params.lro_en) {
4336 netdev_warn(netdev, "can't set XDP while LRO is on, disable LRO first\n");
4340 if (MLX5_IPSEC_DEV(priv->mdev)) {
4341 netdev_warn(netdev, "can't set XDP with IPSec offload\n");
4345 new_channels.params = priv->channels.params;
4346 new_channels.params.xdp_prog = prog;
4348 /* No XSK params: AF_XDP can't be enabled yet at the point of setting
4351 if (!mlx5e_rx_is_linear_skb(&new_channels.params, NULL)) {
4352 netdev_warn(netdev, "XDP is not allowed with MTU(%d) > %d\n",
4353 new_channels.params.sw_mtu,
4354 mlx5e_xdp_max_mtu(&new_channels.params, NULL));
4361 static int mlx5e_xdp_set(struct net_device *netdev, struct bpf_prog *prog)
4363 struct mlx5e_priv *priv = netdev_priv(netdev);
4364 struct bpf_prog *old_prog;
4365 bool reset, was_opened;
4369 mutex_lock(&priv->state_lock);
4372 err = mlx5e_xdp_allowed(priv, prog);
4377 was_opened = test_bit(MLX5E_STATE_OPENED, &priv->state);
4378 /* no need for full reset when exchanging programs */
4379 reset = (!priv->channels.params.xdp_prog || !prog);
4381 if (was_opened && !reset)
4382 /* num_channels is invariant here, so we can take the
4383 * batched reference right upfront.
4385 bpf_prog_add(prog, priv->channels.num);
4387 if (was_opened && reset) {
4388 struct mlx5e_channels new_channels = {};
4390 new_channels.params = priv->channels.params;
4391 new_channels.params.xdp_prog = prog;
4392 mlx5e_set_rq_type(priv->mdev, &new_channels.params);
4393 old_prog = priv->channels.params.xdp_prog;
4395 err = mlx5e_safe_switch_channels(priv, &new_channels, NULL);
4399 /* exchange programs, extra prog reference we got from caller
4400 * as long as we don't fail from this point onwards.
4402 old_prog = xchg(&priv->channels.params.xdp_prog, prog);
4406 bpf_prog_put(old_prog);
4408 if (!was_opened && reset) /* change RQ type according to priv->xdp_prog */
4409 mlx5e_set_rq_type(priv->mdev, &priv->channels.params);
4411 if (!was_opened || reset)
4414 /* exchanging programs w/o reset, we update ref counts on behalf
4415 * of the channels RQs here.
4417 for (i = 0; i < priv->channels.num; i++) {
4418 struct mlx5e_channel *c = priv->channels.c[i];
4419 bool xsk_open = test_bit(MLX5E_CHANNEL_STATE_XSK, c->state);
4421 clear_bit(MLX5E_RQ_STATE_ENABLED, &c->rq.state);
4423 clear_bit(MLX5E_RQ_STATE_ENABLED, &c->xskrq.state);
4424 napi_synchronize(&c->napi);
4425 /* prevent mlx5e_poll_rx_cq from accessing rq->xdp_prog */
4427 old_prog = xchg(&c->rq.xdp_prog, prog);
4429 bpf_prog_put(old_prog);
4432 old_prog = xchg(&c->xskrq.xdp_prog, prog);
4434 bpf_prog_put(old_prog);
4437 set_bit(MLX5E_RQ_STATE_ENABLED, &c->rq.state);
4439 set_bit(MLX5E_RQ_STATE_ENABLED, &c->xskrq.state);
4440 /* napi_schedule in case we have missed anything */
4441 napi_schedule(&c->napi);
4445 mutex_unlock(&priv->state_lock);
4449 static u32 mlx5e_xdp_query(struct net_device *dev)
4451 struct mlx5e_priv *priv = netdev_priv(dev);
4452 const struct bpf_prog *xdp_prog;
4455 mutex_lock(&priv->state_lock);
4456 xdp_prog = priv->channels.params.xdp_prog;
4458 prog_id = xdp_prog->aux->id;
4459 mutex_unlock(&priv->state_lock);
4464 static int mlx5e_xdp(struct net_device *dev, struct netdev_bpf *xdp)
4466 switch (xdp->command) {
4467 case XDP_SETUP_PROG:
4468 return mlx5e_xdp_set(dev, xdp->prog);
4469 case XDP_QUERY_PROG:
4470 xdp->prog_id = mlx5e_xdp_query(dev);
4472 case XDP_SETUP_XSK_UMEM:
4473 return mlx5e_xsk_setup_umem(dev, xdp->xsk.umem,
4480 #ifdef CONFIG_MLX5_ESWITCH
4481 static int mlx5e_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
4482 struct net_device *dev, u32 filter_mask,
4485 struct mlx5e_priv *priv = netdev_priv(dev);
4486 struct mlx5_core_dev *mdev = priv->mdev;
4490 err = mlx5_eswitch_get_vepa(mdev->priv.eswitch, &setting);
4493 mode = setting ? BRIDGE_MODE_VEPA : BRIDGE_MODE_VEB;
4494 return ndo_dflt_bridge_getlink(skb, pid, seq, dev,
4496 0, 0, nlflags, filter_mask, NULL);
4499 static int mlx5e_bridge_setlink(struct net_device *dev, struct nlmsghdr *nlh,
4500 u16 flags, struct netlink_ext_ack *extack)
4502 struct mlx5e_priv *priv = netdev_priv(dev);
4503 struct mlx5_core_dev *mdev = priv->mdev;
4504 struct nlattr *attr, *br_spec;
4505 u16 mode = BRIDGE_MODE_UNDEF;
4509 br_spec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC);
4513 nla_for_each_nested(attr, br_spec, rem) {
4514 if (nla_type(attr) != IFLA_BRIDGE_MODE)
4517 if (nla_len(attr) < sizeof(mode))
4520 mode = nla_get_u16(attr);
4521 if (mode > BRIDGE_MODE_VEPA)
4527 if (mode == BRIDGE_MODE_UNDEF)
4530 setting = (mode == BRIDGE_MODE_VEPA) ? 1 : 0;
4531 return mlx5_eswitch_set_vepa(mdev->priv.eswitch, setting);
4535 const struct net_device_ops mlx5e_netdev_ops = {
4536 .ndo_open = mlx5e_open,
4537 .ndo_stop = mlx5e_close,
4538 .ndo_start_xmit = mlx5e_xmit,
4539 .ndo_setup_tc = mlx5e_setup_tc,
4540 .ndo_select_queue = mlx5e_select_queue,
4541 .ndo_get_stats64 = mlx5e_get_stats,
4542 .ndo_set_rx_mode = mlx5e_set_rx_mode,
4543 .ndo_set_mac_address = mlx5e_set_mac,
4544 .ndo_vlan_rx_add_vid = mlx5e_vlan_rx_add_vid,
4545 .ndo_vlan_rx_kill_vid = mlx5e_vlan_rx_kill_vid,
4546 .ndo_set_features = mlx5e_set_features,
4547 .ndo_fix_features = mlx5e_fix_features,
4548 .ndo_change_mtu = mlx5e_change_nic_mtu,
4549 .ndo_do_ioctl = mlx5e_ioctl,
4550 .ndo_set_tx_maxrate = mlx5e_set_tx_maxrate,
4551 .ndo_udp_tunnel_add = mlx5e_add_vxlan_port,
4552 .ndo_udp_tunnel_del = mlx5e_del_vxlan_port,
4553 .ndo_features_check = mlx5e_features_check,
4554 .ndo_tx_timeout = mlx5e_tx_timeout,
4555 .ndo_bpf = mlx5e_xdp,
4556 .ndo_xdp_xmit = mlx5e_xdp_xmit,
4557 .ndo_xsk_wakeup = mlx5e_xsk_wakeup,
4558 #ifdef CONFIG_MLX5_EN_ARFS
4559 .ndo_rx_flow_steer = mlx5e_rx_flow_steer,
4561 #ifdef CONFIG_MLX5_ESWITCH
4562 .ndo_bridge_setlink = mlx5e_bridge_setlink,
4563 .ndo_bridge_getlink = mlx5e_bridge_getlink,
4565 /* SRIOV E-Switch NDOs */
4566 .ndo_set_vf_mac = mlx5e_set_vf_mac,
4567 .ndo_set_vf_vlan = mlx5e_set_vf_vlan,
4568 .ndo_set_vf_spoofchk = mlx5e_set_vf_spoofchk,
4569 .ndo_set_vf_trust = mlx5e_set_vf_trust,
4570 .ndo_set_vf_rate = mlx5e_set_vf_rate,
4571 .ndo_get_vf_config = mlx5e_get_vf_config,
4572 .ndo_set_vf_link_state = mlx5e_set_vf_link_state,
4573 .ndo_get_vf_stats = mlx5e_get_vf_stats,
4577 static int mlx5e_check_required_hca_cap(struct mlx5_core_dev *mdev)
4579 if (MLX5_CAP_GEN(mdev, port_type) != MLX5_CAP_PORT_TYPE_ETH)
4581 if (!MLX5_CAP_GEN(mdev, eth_net_offloads) ||
4582 !MLX5_CAP_GEN(mdev, nic_flow_table) ||
4583 !MLX5_CAP_ETH(mdev, csum_cap) ||
4584 !MLX5_CAP_ETH(mdev, max_lso_cap) ||
4585 !MLX5_CAP_ETH(mdev, vlan_cap) ||
4586 !MLX5_CAP_ETH(mdev, rss_ind_tbl_cap) ||
4587 MLX5_CAP_FLOWTABLE(mdev,
4588 flow_table_properties_nic_receive.max_ft_level)
4590 mlx5_core_warn(mdev,
4591 "Not creating net device, some required device capabilities are missing\n");
4594 if (!MLX5_CAP_ETH(mdev, self_lb_en_modifiable))
4595 mlx5_core_warn(mdev, "Self loop back prevention is not supported\n");
4596 if (!MLX5_CAP_GEN(mdev, cq_moderation))
4597 mlx5_core_warn(mdev, "CQ moderation is not supported\n");
4602 void mlx5e_build_default_indir_rqt(u32 *indirection_rqt, int len,
4607 for (i = 0; i < len; i++)
4608 indirection_rqt[i] = i % num_channels;
4611 static bool slow_pci_heuristic(struct mlx5_core_dev *mdev)
4616 mlx5e_port_max_linkspeed(mdev, &link_speed);
4617 pci_bw = pcie_bandwidth_available(mdev->pdev, NULL, NULL, NULL);
4618 mlx5_core_dbg_once(mdev, "Max link speed = %d, PCI BW = %d\n",
4619 link_speed, pci_bw);
4621 #define MLX5E_SLOW_PCI_RATIO (2)
4623 return link_speed && pci_bw &&
4624 link_speed > MLX5E_SLOW_PCI_RATIO * pci_bw;
4627 static struct dim_cq_moder mlx5e_get_def_tx_moderation(u8 cq_period_mode)
4629 struct dim_cq_moder moder;
4631 moder.cq_period_mode = cq_period_mode;
4632 moder.pkts = MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_PKTS;
4633 moder.usec = MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_USEC;
4634 if (cq_period_mode == MLX5_CQ_PERIOD_MODE_START_FROM_CQE)
4635 moder.usec = MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_USEC_FROM_CQE;
4640 static struct dim_cq_moder mlx5e_get_def_rx_moderation(u8 cq_period_mode)
4642 struct dim_cq_moder moder;
4644 moder.cq_period_mode = cq_period_mode;
4645 moder.pkts = MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_PKTS;
4646 moder.usec = MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_USEC;
4647 if (cq_period_mode == MLX5_CQ_PERIOD_MODE_START_FROM_CQE)
4648 moder.usec = MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_USEC_FROM_CQE;
4653 static u8 mlx5_to_net_dim_cq_period_mode(u8 cq_period_mode)
4655 return cq_period_mode == MLX5_CQ_PERIOD_MODE_START_FROM_CQE ?
4656 DIM_CQ_PERIOD_MODE_START_FROM_CQE :
4657 DIM_CQ_PERIOD_MODE_START_FROM_EQE;
4660 void mlx5e_set_tx_cq_mode_params(struct mlx5e_params *params, u8 cq_period_mode)
4662 if (params->tx_dim_enabled) {
4663 u8 dim_period_mode = mlx5_to_net_dim_cq_period_mode(cq_period_mode);
4665 params->tx_cq_moderation = net_dim_get_def_tx_moderation(dim_period_mode);
4667 params->tx_cq_moderation = mlx5e_get_def_tx_moderation(cq_period_mode);
4670 MLX5E_SET_PFLAG(params, MLX5E_PFLAG_TX_CQE_BASED_MODER,
4671 params->tx_cq_moderation.cq_period_mode ==
4672 MLX5_CQ_PERIOD_MODE_START_FROM_CQE);
4675 void mlx5e_set_rx_cq_mode_params(struct mlx5e_params *params, u8 cq_period_mode)
4677 if (params->rx_dim_enabled) {
4678 u8 dim_period_mode = mlx5_to_net_dim_cq_period_mode(cq_period_mode);
4680 params->rx_cq_moderation = net_dim_get_def_rx_moderation(dim_period_mode);
4682 params->rx_cq_moderation = mlx5e_get_def_rx_moderation(cq_period_mode);
4685 MLX5E_SET_PFLAG(params, MLX5E_PFLAG_RX_CQE_BASED_MODER,
4686 params->rx_cq_moderation.cq_period_mode ==
4687 MLX5_CQ_PERIOD_MODE_START_FROM_CQE);
4690 static u32 mlx5e_choose_lro_timeout(struct mlx5_core_dev *mdev, u32 wanted_timeout)
4694 /* The supported periods are organized in ascending order */
4695 for (i = 0; i < MLX5E_LRO_TIMEOUT_ARR_SIZE - 1; i++)
4696 if (MLX5_CAP_ETH(mdev, lro_timer_supported_periods[i]) >= wanted_timeout)
4699 return MLX5_CAP_ETH(mdev, lro_timer_supported_periods[i]);
4702 void mlx5e_build_rq_params(struct mlx5_core_dev *mdev,
4703 struct mlx5e_params *params)
4705 /* Prefer Striding RQ, unless any of the following holds:
4706 * - Striding RQ configuration is not possible/supported.
4707 * - Slow PCI heuristic.
4708 * - Legacy RQ would use linear SKB while Striding RQ would use non-linear.
4710 * No XSK params: checking the availability of striding RQ in general.
4712 if (!slow_pci_heuristic(mdev) &&
4713 mlx5e_striding_rq_possible(mdev, params) &&
4714 (mlx5e_rx_mpwqe_is_linear_skb(mdev, params, NULL) ||
4715 !mlx5e_rx_is_linear_skb(params, NULL)))
4716 MLX5E_SET_PFLAG(params, MLX5E_PFLAG_RX_STRIDING_RQ, true);
4717 mlx5e_set_rq_type(mdev, params);
4718 mlx5e_init_rq_type_params(mdev, params);
4721 void mlx5e_build_rss_params(struct mlx5e_rss_params *rss_params,
4724 enum mlx5e_traffic_types tt;
4726 rss_params->hfunc = ETH_RSS_HASH_TOP;
4727 netdev_rss_key_fill(rss_params->toeplitz_hash_key,
4728 sizeof(rss_params->toeplitz_hash_key));
4729 mlx5e_build_default_indir_rqt(rss_params->indirection_rqt,
4730 MLX5E_INDIR_RQT_SIZE, num_channels);
4731 for (tt = 0; tt < MLX5E_NUM_INDIR_TIRS; tt++)
4732 rss_params->rx_hash_fields[tt] =
4733 tirc_default_config[tt].rx_hash_fields;
4736 void mlx5e_build_nic_params(struct mlx5e_priv *priv,
4737 struct mlx5e_xsk *xsk,
4738 struct mlx5e_rss_params *rss_params,
4739 struct mlx5e_params *params,
4742 struct mlx5_core_dev *mdev = priv->mdev;
4743 u8 rx_cq_period_mode;
4745 params->sw_mtu = mtu;
4746 params->hard_mtu = MLX5E_ETH_HARD_MTU;
4747 params->num_channels = min_t(unsigned int, MLX5E_MAX_NUM_CHANNELS / 2,
4752 params->log_sq_size = is_kdump_kernel() ?
4753 MLX5E_PARAMS_MINIMUM_LOG_SQ_SIZE :
4754 MLX5E_PARAMS_DEFAULT_LOG_SQ_SIZE;
4757 MLX5E_SET_PFLAG(params, MLX5E_PFLAG_XDP_TX_MPWQE,
4758 MLX5_CAP_ETH(mdev, enhanced_multi_pkt_send_wqe));
4760 /* set CQE compression */
4761 params->rx_cqe_compress_def = false;
4762 if (MLX5_CAP_GEN(mdev, cqe_compression) &&
4763 MLX5_CAP_GEN(mdev, vport_group_manager))
4764 params->rx_cqe_compress_def = slow_pci_heuristic(mdev);
4766 MLX5E_SET_PFLAG(params, MLX5E_PFLAG_RX_CQE_COMPRESS, params->rx_cqe_compress_def);
4767 MLX5E_SET_PFLAG(params, MLX5E_PFLAG_RX_NO_CSUM_COMPLETE, false);
4770 mlx5e_build_rq_params(mdev, params);
4773 if (MLX5_CAP_ETH(mdev, lro_cap) &&
4774 params->rq_wq_type == MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ) {
4775 /* No XSK params: checking the availability of striding RQ in general. */
4776 if (!mlx5e_rx_mpwqe_is_linear_skb(mdev, params, NULL))
4777 params->lro_en = !slow_pci_heuristic(mdev);
4779 params->lro_timeout = mlx5e_choose_lro_timeout(mdev, MLX5E_DEFAULT_LRO_TIMEOUT);
4781 /* CQ moderation params */
4782 rx_cq_period_mode = MLX5_CAP_GEN(mdev, cq_period_start_from_cqe) ?
4783 MLX5_CQ_PERIOD_MODE_START_FROM_CQE :
4784 MLX5_CQ_PERIOD_MODE_START_FROM_EQE;
4785 params->rx_dim_enabled = MLX5_CAP_GEN(mdev, cq_moderation);
4786 params->tx_dim_enabled = MLX5_CAP_GEN(mdev, cq_moderation);
4787 mlx5e_set_rx_cq_mode_params(params, rx_cq_period_mode);
4788 mlx5e_set_tx_cq_mode_params(params, MLX5_CQ_PERIOD_MODE_START_FROM_EQE);
4791 mlx5_query_min_inline(mdev, ¶ms->tx_min_inline_mode);
4794 mlx5e_build_rss_params(rss_params, params->num_channels);
4795 params->tunneled_offload_en =
4796 mlx5e_tunnel_inner_ft_supported(mdev);
4802 static void mlx5e_set_netdev_dev_addr(struct net_device *netdev)
4804 struct mlx5e_priv *priv = netdev_priv(netdev);
4806 mlx5_query_mac_address(priv->mdev, netdev->dev_addr);
4807 if (is_zero_ether_addr(netdev->dev_addr) &&
4808 !MLX5_CAP_GEN(priv->mdev, vport_group_manager)) {
4809 eth_hw_addr_random(netdev);
4810 mlx5_core_info(priv->mdev, "Assigned random MAC address %pM\n", netdev->dev_addr);
4814 static void mlx5e_build_nic_netdev(struct net_device *netdev)
4816 struct mlx5e_priv *priv = netdev_priv(netdev);
4817 struct mlx5_core_dev *mdev = priv->mdev;
4821 SET_NETDEV_DEV(netdev, mdev->device);
4823 netdev->netdev_ops = &mlx5e_netdev_ops;
4825 #ifdef CONFIG_MLX5_CORE_EN_DCB
4826 if (MLX5_CAP_GEN(mdev, vport_group_manager) && MLX5_CAP_GEN(mdev, qos))
4827 netdev->dcbnl_ops = &mlx5e_dcbnl_ops;
4830 netdev->watchdog_timeo = 15 * HZ;
4832 netdev->ethtool_ops = &mlx5e_ethtool_ops;
4834 netdev->vlan_features |= NETIF_F_SG;
4835 netdev->vlan_features |= NETIF_F_HW_CSUM;
4836 netdev->vlan_features |= NETIF_F_GRO;
4837 netdev->vlan_features |= NETIF_F_TSO;
4838 netdev->vlan_features |= NETIF_F_TSO6;
4839 netdev->vlan_features |= NETIF_F_RXCSUM;
4840 netdev->vlan_features |= NETIF_F_RXHASH;
4842 netdev->mpls_features |= NETIF_F_SG;
4843 netdev->mpls_features |= NETIF_F_HW_CSUM;
4844 netdev->mpls_features |= NETIF_F_TSO;
4845 netdev->mpls_features |= NETIF_F_TSO6;
4847 netdev->hw_enc_features |= NETIF_F_HW_VLAN_CTAG_TX;
4848 netdev->hw_enc_features |= NETIF_F_HW_VLAN_CTAG_RX;
4850 if (!!MLX5_CAP_ETH(mdev, lro_cap) &&
4851 mlx5e_check_fragmented_striding_rq_cap(mdev))
4852 netdev->vlan_features |= NETIF_F_LRO;
4854 netdev->hw_features = netdev->vlan_features;
4855 netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_TX;
4856 netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_RX;
4857 netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_FILTER;
4858 netdev->hw_features |= NETIF_F_HW_VLAN_STAG_TX;
4860 if (mlx5_vxlan_allowed(mdev->vxlan) || mlx5_geneve_tx_allowed(mdev) ||
4861 mlx5e_any_tunnel_proto_supported(mdev)) {
4862 netdev->hw_enc_features |= NETIF_F_HW_CSUM;
4863 netdev->hw_enc_features |= NETIF_F_TSO;
4864 netdev->hw_enc_features |= NETIF_F_TSO6;
4865 netdev->hw_enc_features |= NETIF_F_GSO_PARTIAL;
4868 if (mlx5_vxlan_allowed(mdev->vxlan) || mlx5_geneve_tx_allowed(mdev)) {
4869 netdev->hw_features |= NETIF_F_GSO_UDP_TUNNEL |
4870 NETIF_F_GSO_UDP_TUNNEL_CSUM;
4871 netdev->hw_enc_features |= NETIF_F_GSO_UDP_TUNNEL |
4872 NETIF_F_GSO_UDP_TUNNEL_CSUM;
4873 netdev->gso_partial_features = NETIF_F_GSO_UDP_TUNNEL_CSUM;
4874 netdev->vlan_features |= NETIF_F_GSO_UDP_TUNNEL |
4875 NETIF_F_GSO_UDP_TUNNEL_CSUM;
4878 if (mlx5e_tunnel_proto_supported(mdev, IPPROTO_GRE)) {
4879 netdev->hw_features |= NETIF_F_GSO_GRE |
4880 NETIF_F_GSO_GRE_CSUM;
4881 netdev->hw_enc_features |= NETIF_F_GSO_GRE |
4882 NETIF_F_GSO_GRE_CSUM;
4883 netdev->gso_partial_features |= NETIF_F_GSO_GRE |
4884 NETIF_F_GSO_GRE_CSUM;
4887 if (mlx5e_tunnel_proto_supported(mdev, IPPROTO_IPIP)) {
4888 netdev->hw_features |= NETIF_F_GSO_IPXIP4 |
4890 netdev->hw_enc_features |= NETIF_F_GSO_IPXIP4 |
4892 netdev->gso_partial_features |= NETIF_F_GSO_IPXIP4 |
4896 netdev->hw_features |= NETIF_F_GSO_PARTIAL;
4897 netdev->gso_partial_features |= NETIF_F_GSO_UDP_L4;
4898 netdev->hw_features |= NETIF_F_GSO_UDP_L4;
4899 netdev->features |= NETIF_F_GSO_UDP_L4;
4901 mlx5_query_port_fcs(mdev, &fcs_supported, &fcs_enabled);
4904 netdev->hw_features |= NETIF_F_RXALL;
4906 if (MLX5_CAP_ETH(mdev, scatter_fcs))
4907 netdev->hw_features |= NETIF_F_RXFCS;
4909 netdev->features = netdev->hw_features;
4910 if (!priv->channels.params.lro_en)
4911 netdev->features &= ~NETIF_F_LRO;
4914 netdev->features &= ~NETIF_F_RXALL;
4916 if (!priv->channels.params.scatter_fcs_en)
4917 netdev->features &= ~NETIF_F_RXFCS;
4919 /* prefere CQE compression over rxhash */
4920 if (MLX5E_GET_PFLAG(&priv->channels.params, MLX5E_PFLAG_RX_CQE_COMPRESS))
4921 netdev->features &= ~NETIF_F_RXHASH;
4923 #define FT_CAP(f) MLX5_CAP_FLOWTABLE(mdev, flow_table_properties_nic_receive.f)
4924 if (FT_CAP(flow_modify_en) &&
4925 FT_CAP(modify_root) &&
4926 FT_CAP(identified_miss_table_mode) &&
4927 FT_CAP(flow_table_modify)) {
4928 #ifdef CONFIG_MLX5_ESWITCH
4929 netdev->hw_features |= NETIF_F_HW_TC;
4931 #ifdef CONFIG_MLX5_EN_ARFS
4932 netdev->hw_features |= NETIF_F_NTUPLE;
4936 netdev->features |= NETIF_F_HIGHDMA;
4937 netdev->features |= NETIF_F_HW_VLAN_STAG_FILTER;
4939 netdev->priv_flags |= IFF_UNICAST_FLT;
4941 mlx5e_set_netdev_dev_addr(netdev);
4942 mlx5e_ipsec_build_netdev(priv);
4943 mlx5e_tls_build_netdev(priv);
4946 void mlx5e_create_q_counters(struct mlx5e_priv *priv)
4948 struct mlx5_core_dev *mdev = priv->mdev;
4951 err = mlx5_core_alloc_q_counter(mdev, &priv->q_counter);
4953 mlx5_core_warn(mdev, "alloc queue counter failed, %d\n", err);
4954 priv->q_counter = 0;
4957 err = mlx5_core_alloc_q_counter(mdev, &priv->drop_rq_q_counter);
4959 mlx5_core_warn(mdev, "alloc drop RQ counter failed, %d\n", err);
4960 priv->drop_rq_q_counter = 0;
4964 void mlx5e_destroy_q_counters(struct mlx5e_priv *priv)
4966 if (priv->q_counter)
4967 mlx5_core_dealloc_q_counter(priv->mdev, priv->q_counter);
4969 if (priv->drop_rq_q_counter)
4970 mlx5_core_dealloc_q_counter(priv->mdev, priv->drop_rq_q_counter);
4973 static int mlx5e_nic_init(struct mlx5_core_dev *mdev,
4974 struct net_device *netdev,
4975 const struct mlx5e_profile *profile,
4978 struct mlx5e_priv *priv = netdev_priv(netdev);
4979 struct mlx5e_rss_params *rss = &priv->rss_params;
4982 err = mlx5e_netdev_init(netdev, priv, mdev, profile, ppriv);
4986 mlx5e_build_nic_params(priv, &priv->xsk, rss, &priv->channels.params,
4989 mlx5e_timestamp_init(priv);
4991 err = mlx5e_ipsec_init(priv);
4993 mlx5_core_err(mdev, "IPSec initialization failed, %d\n", err);
4994 err = mlx5e_tls_init(priv);
4996 mlx5_core_err(mdev, "TLS initialization failed, %d\n", err);
4997 mlx5e_build_nic_netdev(netdev);
4998 mlx5e_health_create_reporters(priv);
5003 static void mlx5e_nic_cleanup(struct mlx5e_priv *priv)
5005 mlx5e_health_destroy_reporters(priv);
5006 mlx5e_tls_cleanup(priv);
5007 mlx5e_ipsec_cleanup(priv);
5008 mlx5e_netdev_cleanup(priv->netdev, priv);
5011 static int mlx5e_init_nic_rx(struct mlx5e_priv *priv)
5013 struct mlx5_core_dev *mdev = priv->mdev;
5016 mlx5e_create_q_counters(priv);
5018 err = mlx5e_open_drop_rq(priv, &priv->drop_rq);
5020 mlx5_core_err(mdev, "open drop rq failed, %d\n", err);
5021 goto err_destroy_q_counters;
5024 err = mlx5e_create_indirect_rqt(priv);
5026 goto err_close_drop_rq;
5028 err = mlx5e_create_direct_rqts(priv, priv->direct_tir);
5030 goto err_destroy_indirect_rqts;
5032 err = mlx5e_create_indirect_tirs(priv, true);
5034 goto err_destroy_direct_rqts;
5036 err = mlx5e_create_direct_tirs(priv, priv->direct_tir);
5038 goto err_destroy_indirect_tirs;
5040 err = mlx5e_create_direct_rqts(priv, priv->xsk_tir);
5042 goto err_destroy_direct_tirs;
5044 err = mlx5e_create_direct_tirs(priv, priv->xsk_tir);
5046 goto err_destroy_xsk_rqts;
5048 err = mlx5e_create_flow_steering(priv);
5050 mlx5_core_warn(mdev, "create flow steering failed, %d\n", err);
5051 goto err_destroy_xsk_tirs;
5054 err = mlx5e_tc_nic_init(priv);
5056 goto err_destroy_flow_steering;
5060 err_destroy_flow_steering:
5061 mlx5e_destroy_flow_steering(priv);
5062 err_destroy_xsk_tirs:
5063 mlx5e_destroy_direct_tirs(priv, priv->xsk_tir);
5064 err_destroy_xsk_rqts:
5065 mlx5e_destroy_direct_rqts(priv, priv->xsk_tir);
5066 err_destroy_direct_tirs:
5067 mlx5e_destroy_direct_tirs(priv, priv->direct_tir);
5068 err_destroy_indirect_tirs:
5069 mlx5e_destroy_indirect_tirs(priv, true);
5070 err_destroy_direct_rqts:
5071 mlx5e_destroy_direct_rqts(priv, priv->direct_tir);
5072 err_destroy_indirect_rqts:
5073 mlx5e_destroy_rqt(priv, &priv->indir_rqt);
5075 mlx5e_close_drop_rq(&priv->drop_rq);
5076 err_destroy_q_counters:
5077 mlx5e_destroy_q_counters(priv);
5081 static void mlx5e_cleanup_nic_rx(struct mlx5e_priv *priv)
5083 mlx5e_tc_nic_cleanup(priv);
5084 mlx5e_destroy_flow_steering(priv);
5085 mlx5e_destroy_direct_tirs(priv, priv->xsk_tir);
5086 mlx5e_destroy_direct_rqts(priv, priv->xsk_tir);
5087 mlx5e_destroy_direct_tirs(priv, priv->direct_tir);
5088 mlx5e_destroy_indirect_tirs(priv, true);
5089 mlx5e_destroy_direct_rqts(priv, priv->direct_tir);
5090 mlx5e_destroy_rqt(priv, &priv->indir_rqt);
5091 mlx5e_close_drop_rq(&priv->drop_rq);
5092 mlx5e_destroy_q_counters(priv);
5095 static int mlx5e_init_nic_tx(struct mlx5e_priv *priv)
5099 err = mlx5e_create_tises(priv);
5101 mlx5_core_warn(priv->mdev, "create tises failed, %d\n", err);
5105 #ifdef CONFIG_MLX5_CORE_EN_DCB
5106 mlx5e_dcbnl_initialize(priv);
5111 static void mlx5e_nic_enable(struct mlx5e_priv *priv)
5113 struct net_device *netdev = priv->netdev;
5114 struct mlx5_core_dev *mdev = priv->mdev;
5116 mlx5e_init_l2_addr(priv);
5118 /* Marking the link as currently not needed by the Driver */
5119 if (!netif_running(netdev))
5120 mlx5_set_port_admin_status(mdev, MLX5_PORT_DOWN);
5122 mlx5e_set_netdev_mtu_boundaries(priv);
5123 mlx5e_set_dev_port_mtu(priv);
5125 mlx5_lag_add(mdev, netdev);
5127 mlx5e_enable_async_events(priv);
5128 if (mlx5e_monitor_counter_supported(priv))
5129 mlx5e_monitor_counter_init(priv);
5131 mlx5e_hv_vhca_stats_create(priv);
5132 if (netdev->reg_state != NETREG_REGISTERED)
5134 #ifdef CONFIG_MLX5_CORE_EN_DCB
5135 mlx5e_dcbnl_init_app(priv);
5138 queue_work(priv->wq, &priv->set_rx_mode_work);
5141 if (netif_running(netdev))
5143 netif_device_attach(netdev);
5147 static void mlx5e_nic_disable(struct mlx5e_priv *priv)
5149 struct net_device *netdev = priv->netdev;
5150 struct mlx5_core_dev *mdev = priv->mdev;
5152 #ifdef CONFIG_MLX5_CORE_EN_DCB
5153 if (priv->netdev->reg_state == NETREG_REGISTERED)
5154 mlx5e_dcbnl_delete_app(priv);
5158 if (netif_running(priv->netdev))
5159 mlx5e_close(priv->netdev);
5160 netif_device_detach(priv->netdev);
5163 queue_work(priv->wq, &priv->set_rx_mode_work);
5165 mlx5e_hv_vhca_stats_destroy(priv);
5166 if (mlx5e_monitor_counter_supported(priv))
5167 mlx5e_monitor_counter_cleanup(priv);
5169 mlx5e_disable_async_events(priv);
5170 mlx5_lag_remove(mdev, netdev);
5173 int mlx5e_update_nic_rx(struct mlx5e_priv *priv)
5175 return mlx5e_refresh_tirs(priv, false);
5178 static const struct mlx5e_profile mlx5e_nic_profile = {
5179 .init = mlx5e_nic_init,
5180 .cleanup = mlx5e_nic_cleanup,
5181 .init_rx = mlx5e_init_nic_rx,
5182 .cleanup_rx = mlx5e_cleanup_nic_rx,
5183 .init_tx = mlx5e_init_nic_tx,
5184 .cleanup_tx = mlx5e_cleanup_nic_tx,
5185 .enable = mlx5e_nic_enable,
5186 .disable = mlx5e_nic_disable,
5187 .update_rx = mlx5e_update_nic_rx,
5188 .update_stats = mlx5e_update_ndo_stats,
5189 .update_carrier = mlx5e_update_carrier,
5190 .rx_handlers.handle_rx_cqe = mlx5e_handle_rx_cqe,
5191 .rx_handlers.handle_rx_cqe_mpwqe = mlx5e_handle_rx_cqe_mpwrq,
5192 .max_tc = MLX5E_MAX_NUM_TC,
5193 .rq_groups = MLX5E_NUM_RQ_GROUPS(XSK),
5194 .stats_grps = mlx5e_nic_stats_grps,
5195 .stats_grps_num = mlx5e_nic_stats_grps_num,
5198 /* mlx5e generic netdev management API (move to en_common.c) */
5200 /* mlx5e_netdev_init/cleanup must be called from profile->init/cleanup callbacks */
5201 int mlx5e_netdev_init(struct net_device *netdev,
5202 struct mlx5e_priv *priv,
5203 struct mlx5_core_dev *mdev,
5204 const struct mlx5e_profile *profile,
5209 priv->netdev = netdev;
5210 priv->profile = profile;
5211 priv->ppriv = ppriv;
5212 priv->msglevel = MLX5E_MSG_LEVEL;
5213 priv->max_nch = netdev->num_rx_queues / max_t(u8, profile->rq_groups, 1);
5214 priv->max_opened_tc = 1;
5216 mutex_init(&priv->state_lock);
5217 INIT_WORK(&priv->update_carrier_work, mlx5e_update_carrier_work);
5218 INIT_WORK(&priv->set_rx_mode_work, mlx5e_set_rx_mode_work);
5219 INIT_WORK(&priv->tx_timeout_work, mlx5e_tx_timeout_work);
5220 INIT_WORK(&priv->update_stats_work, mlx5e_update_stats_work);
5222 priv->wq = create_singlethread_workqueue("mlx5e");
5227 netif_carrier_off(netdev);
5229 #ifdef CONFIG_MLX5_EN_ARFS
5230 netdev->rx_cpu_rmap = mlx5_eq_table_get_rmap(mdev);
5236 void mlx5e_netdev_cleanup(struct net_device *netdev, struct mlx5e_priv *priv)
5238 destroy_workqueue(priv->wq);
5241 struct net_device *mlx5e_create_netdev(struct mlx5_core_dev *mdev,
5242 const struct mlx5e_profile *profile,
5246 struct net_device *netdev;
5249 netdev = alloc_etherdev_mqs(sizeof(struct mlx5e_priv),
5250 nch * profile->max_tc,
5251 nch * profile->rq_groups);
5253 mlx5_core_err(mdev, "alloc_etherdev_mqs() failed\n");
5257 err = profile->init(mdev, netdev, profile, ppriv);
5259 mlx5_core_err(mdev, "failed to init mlx5e profile %d\n", err);
5260 goto err_free_netdev;
5266 free_netdev(netdev);
5271 int mlx5e_attach_netdev(struct mlx5e_priv *priv)
5273 const struct mlx5e_profile *profile;
5277 profile = priv->profile;
5278 clear_bit(MLX5E_STATE_DESTROYING, &priv->state);
5280 /* max number of channels may have changed */
5281 max_nch = mlx5e_get_max_num_channels(priv->mdev);
5282 if (priv->channels.params.num_channels > max_nch) {
5283 mlx5_core_warn(priv->mdev, "MLX5E: Reducing number of channels to %d\n", max_nch);
5284 priv->channels.params.num_channels = max_nch;
5285 mlx5e_build_default_indir_rqt(priv->rss_params.indirection_rqt,
5286 MLX5E_INDIR_RQT_SIZE, max_nch);
5289 err = profile->init_tx(priv);
5293 err = profile->init_rx(priv);
5295 goto err_cleanup_tx;
5297 if (profile->enable)
5298 profile->enable(priv);
5303 profile->cleanup_tx(priv);
5309 void mlx5e_detach_netdev(struct mlx5e_priv *priv)
5311 const struct mlx5e_profile *profile = priv->profile;
5313 set_bit(MLX5E_STATE_DESTROYING, &priv->state);
5315 if (profile->disable)
5316 profile->disable(priv);
5317 flush_workqueue(priv->wq);
5319 profile->cleanup_rx(priv);
5320 profile->cleanup_tx(priv);
5321 cancel_work_sync(&priv->update_stats_work);
5324 void mlx5e_destroy_netdev(struct mlx5e_priv *priv)
5326 const struct mlx5e_profile *profile = priv->profile;
5327 struct net_device *netdev = priv->netdev;
5329 if (profile->cleanup)
5330 profile->cleanup(priv);
5331 free_netdev(netdev);
5334 /* mlx5e_attach and mlx5e_detach scope should be only creating/destroying
5335 * hardware contexts and to connect it to the current netdev.
5337 static int mlx5e_attach(struct mlx5_core_dev *mdev, void *vpriv)
5339 struct mlx5e_priv *priv = vpriv;
5340 struct net_device *netdev = priv->netdev;
5343 if (netif_device_present(netdev))
5346 err = mlx5e_create_mdev_resources(mdev);
5350 err = mlx5e_attach_netdev(priv);
5352 mlx5e_destroy_mdev_resources(mdev);
5359 static void mlx5e_detach(struct mlx5_core_dev *mdev, void *vpriv)
5361 struct mlx5e_priv *priv = vpriv;
5362 struct net_device *netdev = priv->netdev;
5364 #ifdef CONFIG_MLX5_ESWITCH
5365 if (MLX5_ESWITCH_MANAGER(mdev) && vpriv == mdev)
5369 if (!netif_device_present(netdev))
5372 mlx5e_detach_netdev(priv);
5373 mlx5e_destroy_mdev_resources(mdev);
5376 static void *mlx5e_add(struct mlx5_core_dev *mdev)
5378 struct net_device *netdev;
5383 err = mlx5e_check_required_hca_cap(mdev);
5387 #ifdef CONFIG_MLX5_ESWITCH
5388 if (MLX5_ESWITCH_MANAGER(mdev) &&
5389 mlx5_eswitch_mode(mdev->priv.eswitch) == MLX5_ESWITCH_OFFLOADS) {
5390 mlx5e_rep_register_vport_reps(mdev);
5395 nch = mlx5e_get_max_num_channels(mdev);
5396 netdev = mlx5e_create_netdev(mdev, &mlx5e_nic_profile, nch, NULL);
5398 mlx5_core_err(mdev, "mlx5e_create_netdev failed\n");
5402 dev_net_set(netdev, mlx5_core_net(mdev));
5403 priv = netdev_priv(netdev);
5405 err = mlx5e_attach(mdev, priv);
5407 mlx5_core_err(mdev, "mlx5e_attach failed, %d\n", err);
5408 goto err_destroy_netdev;
5411 err = register_netdev(netdev);
5413 mlx5_core_err(mdev, "register_netdev failed, %d\n", err);
5417 #ifdef CONFIG_MLX5_CORE_EN_DCB
5418 mlx5e_dcbnl_init_app(priv);
5423 mlx5e_detach(mdev, priv);
5425 mlx5e_destroy_netdev(priv);
5429 static void mlx5e_remove(struct mlx5_core_dev *mdev, void *vpriv)
5431 struct mlx5e_priv *priv;
5433 #ifdef CONFIG_MLX5_ESWITCH
5434 if (MLX5_ESWITCH_MANAGER(mdev) && vpriv == mdev) {
5435 mlx5e_rep_unregister_vport_reps(mdev);
5440 #ifdef CONFIG_MLX5_CORE_EN_DCB
5441 mlx5e_dcbnl_delete_app(priv);
5443 unregister_netdev(priv->netdev);
5444 mlx5e_detach(mdev, vpriv);
5445 mlx5e_destroy_netdev(priv);
5448 static struct mlx5_interface mlx5e_interface = {
5450 .remove = mlx5e_remove,
5451 .attach = mlx5e_attach,
5452 .detach = mlx5e_detach,
5453 .protocol = MLX5_INTERFACE_PROTOCOL_ETH,
5456 void mlx5e_init(void)
5458 mlx5e_ipsec_build_inverse_table();
5459 mlx5e_build_ptys2ethtool_map();
5460 mlx5_register_interface(&mlx5e_interface);
5463 void mlx5e_cleanup(void)
5465 mlx5_unregister_interface(&mlx5e_interface);