2 * Copyright (c) 2015, 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
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29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
33 #include <linux/mlx5/flow_table.h>
36 struct mlx5e_rq_param {
37 u32 rqc[MLX5_ST_SZ_DW(rqc)];
38 struct mlx5_wq_param wq;
41 struct mlx5e_sq_param {
42 u32 sqc[MLX5_ST_SZ_DW(sqc)];
43 struct mlx5_wq_param wq;
46 struct mlx5e_cq_param {
47 u32 cqc[MLX5_ST_SZ_DW(cqc)];
48 struct mlx5_wq_param wq;
52 struct mlx5e_channel_param {
53 struct mlx5e_rq_param rq;
54 struct mlx5e_sq_param sq;
55 struct mlx5e_cq_param rx_cq;
56 struct mlx5e_cq_param tx_cq;
59 static void mlx5e_update_carrier(struct mlx5e_priv *priv)
61 struct mlx5_core_dev *mdev = priv->mdev;
64 port_state = mlx5_query_vport_state(mdev,
65 MLX5_QUERY_VPORT_STATE_IN_OP_MOD_VNIC_VPORT);
67 if (port_state == VPORT_STATE_UP)
68 netif_carrier_on(priv->netdev);
70 netif_carrier_off(priv->netdev);
73 static void mlx5e_update_carrier_work(struct work_struct *work)
75 struct mlx5e_priv *priv = container_of(work, struct mlx5e_priv,
78 mutex_lock(&priv->state_lock);
79 if (test_bit(MLX5E_STATE_OPENED, &priv->state))
80 mlx5e_update_carrier(priv);
81 mutex_unlock(&priv->state_lock);
84 void mlx5e_update_stats(struct mlx5e_priv *priv)
86 struct mlx5_core_dev *mdev = priv->mdev;
87 struct mlx5e_vport_stats *s = &priv->stats.vport;
88 struct mlx5e_rq_stats *rq_stats;
89 struct mlx5e_sq_stats *sq_stats;
90 u32 in[MLX5_ST_SZ_DW(query_vport_counter_in)];
92 int outlen = MLX5_ST_SZ_BYTES(query_vport_counter_out);
96 out = mlx5_vzalloc(outlen);
100 /* Collect firts the SW counters and then HW for consistency */
103 s->tx_queue_stopped = 0;
104 s->tx_queue_wake = 0;
105 s->tx_queue_dropped = 0;
111 for (i = 0; i < priv->params.num_channels; i++) {
112 rq_stats = &priv->channel[i]->rq.stats;
114 s->lro_packets += rq_stats->lro_packets;
115 s->lro_bytes += rq_stats->lro_bytes;
116 s->rx_csum_none += rq_stats->csum_none;
117 s->rx_wqe_err += rq_stats->wqe_err;
119 for (j = 0; j < priv->num_tc; j++) {
120 sq_stats = &priv->channel[i]->sq[j].stats;
122 s->tso_packets += sq_stats->tso_packets;
123 s->tso_bytes += sq_stats->tso_bytes;
124 s->tx_queue_stopped += sq_stats->stopped;
125 s->tx_queue_wake += sq_stats->wake;
126 s->tx_queue_dropped += sq_stats->dropped;
127 tx_offload_none += sq_stats->csum_offload_none;
132 memset(in, 0, sizeof(in));
134 MLX5_SET(query_vport_counter_in, in, opcode,
135 MLX5_CMD_OP_QUERY_VPORT_COUNTER);
136 MLX5_SET(query_vport_counter_in, in, op_mod, 0);
137 MLX5_SET(query_vport_counter_in, in, other_vport, 0);
139 memset(out, 0, outlen);
141 if (mlx5_cmd_exec(mdev, in, sizeof(in), out, outlen))
144 #define MLX5_GET_CTR(p, x) \
145 MLX5_GET64(query_vport_counter_out, p, x)
147 s->rx_error_packets =
148 MLX5_GET_CTR(out, received_errors.packets);
150 MLX5_GET_CTR(out, received_errors.octets);
151 s->tx_error_packets =
152 MLX5_GET_CTR(out, transmit_errors.packets);
154 MLX5_GET_CTR(out, transmit_errors.octets);
156 s->rx_unicast_packets =
157 MLX5_GET_CTR(out, received_eth_unicast.packets);
158 s->rx_unicast_bytes =
159 MLX5_GET_CTR(out, received_eth_unicast.octets);
160 s->tx_unicast_packets =
161 MLX5_GET_CTR(out, transmitted_eth_unicast.packets);
162 s->tx_unicast_bytes =
163 MLX5_GET_CTR(out, transmitted_eth_unicast.octets);
165 s->rx_multicast_packets =
166 MLX5_GET_CTR(out, received_eth_multicast.packets);
167 s->rx_multicast_bytes =
168 MLX5_GET_CTR(out, received_eth_multicast.octets);
169 s->tx_multicast_packets =
170 MLX5_GET_CTR(out, transmitted_eth_multicast.packets);
171 s->tx_multicast_bytes =
172 MLX5_GET_CTR(out, transmitted_eth_multicast.octets);
174 s->rx_broadcast_packets =
175 MLX5_GET_CTR(out, received_eth_broadcast.packets);
176 s->rx_broadcast_bytes =
177 MLX5_GET_CTR(out, received_eth_broadcast.octets);
178 s->tx_broadcast_packets =
179 MLX5_GET_CTR(out, transmitted_eth_broadcast.packets);
180 s->tx_broadcast_bytes =
181 MLX5_GET_CTR(out, transmitted_eth_broadcast.octets);
184 s->rx_unicast_packets +
185 s->rx_multicast_packets +
186 s->rx_broadcast_packets;
188 s->rx_unicast_bytes +
189 s->rx_multicast_bytes +
190 s->rx_broadcast_bytes;
192 s->tx_unicast_packets +
193 s->tx_multicast_packets +
194 s->tx_broadcast_packets;
196 s->tx_unicast_bytes +
197 s->tx_multicast_bytes +
198 s->tx_broadcast_bytes;
200 /* Update calculated offload counters */
201 s->tx_csum_offload = s->tx_packets - tx_offload_none;
202 s->rx_csum_good = s->rx_packets - s->rx_csum_none;
208 static void mlx5e_update_stats_work(struct work_struct *work)
210 struct delayed_work *dwork = to_delayed_work(work);
211 struct mlx5e_priv *priv = container_of(dwork, struct mlx5e_priv,
213 mutex_lock(&priv->state_lock);
214 if (test_bit(MLX5E_STATE_OPENED, &priv->state)) {
215 mlx5e_update_stats(priv);
216 schedule_delayed_work(dwork,
218 MLX5E_UPDATE_STATS_INTERVAL));
220 mutex_unlock(&priv->state_lock);
223 static void __mlx5e_async_event(struct mlx5e_priv *priv,
224 enum mlx5_dev_event event)
227 case MLX5_DEV_EVENT_PORT_UP:
228 case MLX5_DEV_EVENT_PORT_DOWN:
229 schedule_work(&priv->update_carrier_work);
237 static void mlx5e_async_event(struct mlx5_core_dev *mdev, void *vpriv,
238 enum mlx5_dev_event event, unsigned long param)
240 struct mlx5e_priv *priv = vpriv;
242 spin_lock(&priv->async_events_spinlock);
243 if (test_bit(MLX5E_STATE_ASYNC_EVENTS_ENABLE, &priv->state))
244 __mlx5e_async_event(priv, event);
245 spin_unlock(&priv->async_events_spinlock);
248 static void mlx5e_enable_async_events(struct mlx5e_priv *priv)
250 set_bit(MLX5E_STATE_ASYNC_EVENTS_ENABLE, &priv->state);
253 static void mlx5e_disable_async_events(struct mlx5e_priv *priv)
255 spin_lock_irq(&priv->async_events_spinlock);
256 clear_bit(MLX5E_STATE_ASYNC_EVENTS_ENABLE, &priv->state);
257 spin_unlock_irq(&priv->async_events_spinlock);
260 #define MLX5E_HW2SW_MTU(hwmtu) (hwmtu - (ETH_HLEN + VLAN_HLEN + ETH_FCS_LEN))
261 #define MLX5E_SW2HW_MTU(swmtu) (swmtu + (ETH_HLEN + VLAN_HLEN + ETH_FCS_LEN))
263 static int mlx5e_create_rq(struct mlx5e_channel *c,
264 struct mlx5e_rq_param *param,
267 struct mlx5e_priv *priv = c->priv;
268 struct mlx5_core_dev *mdev = priv->mdev;
269 void *rqc = param->rqc;
270 void *rqc_wq = MLX5_ADDR_OF(rqc, rqc, wq);
275 err = mlx5_wq_ll_create(mdev, ¶m->wq, rqc_wq, &rq->wq,
280 rq->wq.db = &rq->wq.db[MLX5_RCV_DBR];
282 wq_sz = mlx5_wq_ll_get_size(&rq->wq);
283 rq->skb = kzalloc_node(wq_sz * sizeof(*rq->skb), GFP_KERNEL,
284 cpu_to_node(c->cpu));
287 goto err_rq_wq_destroy;
290 rq->wqe_sz = (priv->params.lro_en) ? priv->params.lro_wqe_sz :
291 MLX5E_SW2HW_MTU(priv->netdev->mtu);
292 rq->wqe_sz = SKB_DATA_ALIGN(rq->wqe_sz + MLX5E_NET_IP_ALIGN);
294 for (i = 0; i < wq_sz; i++) {
295 struct mlx5e_rx_wqe *wqe = mlx5_wq_ll_get_wqe(&rq->wq, i);
296 u32 byte_count = rq->wqe_sz - MLX5E_NET_IP_ALIGN;
298 wqe->data.lkey = c->mkey_be;
299 wqe->data.byte_count =
300 cpu_to_be32(byte_count | MLX5_HW_START_PADDING);
304 rq->netdev = c->netdev;
311 mlx5_wq_destroy(&rq->wq_ctrl);
316 static void mlx5e_destroy_rq(struct mlx5e_rq *rq)
319 mlx5_wq_destroy(&rq->wq_ctrl);
322 static int mlx5e_enable_rq(struct mlx5e_rq *rq, struct mlx5e_rq_param *param)
324 struct mlx5e_channel *c = rq->channel;
325 struct mlx5e_priv *priv = c->priv;
326 struct mlx5_core_dev *mdev = priv->mdev;
334 inlen = MLX5_ST_SZ_BYTES(create_rq_in) +
335 sizeof(u64) * rq->wq_ctrl.buf.npages;
336 in = mlx5_vzalloc(inlen);
340 rqc = MLX5_ADDR_OF(create_rq_in, in, ctx);
341 wq = MLX5_ADDR_OF(rqc, rqc, wq);
343 memcpy(rqc, param->rqc, sizeof(param->rqc));
345 MLX5_SET(rqc, rqc, cqn, c->rq.cq.mcq.cqn);
346 MLX5_SET(rqc, rqc, state, MLX5_RQC_STATE_RST);
347 MLX5_SET(rqc, rqc, flush_in_error_en, 1);
348 MLX5_SET(wq, wq, log_wq_pg_sz, rq->wq_ctrl.buf.page_shift -
350 MLX5_SET64(wq, wq, dbr_addr, rq->wq_ctrl.db.dma);
352 mlx5_fill_page_array(&rq->wq_ctrl.buf,
353 (__be64 *)MLX5_ADDR_OF(wq, wq, pas));
355 err = mlx5_core_create_rq(mdev, in, inlen, &rq->rqn);
362 static int mlx5e_modify_rq(struct mlx5e_rq *rq, int curr_state, int next_state)
364 struct mlx5e_channel *c = rq->channel;
365 struct mlx5e_priv *priv = c->priv;
366 struct mlx5_core_dev *mdev = priv->mdev;
373 inlen = MLX5_ST_SZ_BYTES(modify_rq_in);
374 in = mlx5_vzalloc(inlen);
378 rqc = MLX5_ADDR_OF(modify_rq_in, in, ctx);
380 MLX5_SET(modify_rq_in, in, rq_state, curr_state);
381 MLX5_SET(rqc, rqc, state, next_state);
383 err = mlx5_core_modify_rq(mdev, rq->rqn, in, inlen);
390 static void mlx5e_disable_rq(struct mlx5e_rq *rq)
392 struct mlx5e_channel *c = rq->channel;
393 struct mlx5e_priv *priv = c->priv;
394 struct mlx5_core_dev *mdev = priv->mdev;
396 mlx5_core_destroy_rq(mdev, rq->rqn);
399 static int mlx5e_wait_for_min_rx_wqes(struct mlx5e_rq *rq)
401 struct mlx5e_channel *c = rq->channel;
402 struct mlx5e_priv *priv = c->priv;
403 struct mlx5_wq_ll *wq = &rq->wq;
406 for (i = 0; i < 1000; i++) {
407 if (wq->cur_sz >= priv->params.min_rx_wqes)
416 static int mlx5e_open_rq(struct mlx5e_channel *c,
417 struct mlx5e_rq_param *param,
422 err = mlx5e_create_rq(c, param, rq);
426 err = mlx5e_enable_rq(rq, param);
430 err = mlx5e_modify_rq(rq, MLX5_RQC_STATE_RST, MLX5_RQC_STATE_RDY);
434 set_bit(MLX5E_RQ_STATE_POST_WQES_ENABLE, &rq->state);
435 mlx5e_send_nop(&c->sq[0], true); /* trigger mlx5e_post_rx_wqes() */
440 mlx5e_disable_rq(rq);
442 mlx5e_destroy_rq(rq);
447 static void mlx5e_close_rq(struct mlx5e_rq *rq)
449 clear_bit(MLX5E_RQ_STATE_POST_WQES_ENABLE, &rq->state);
450 napi_synchronize(&rq->channel->napi); /* prevent mlx5e_post_rx_wqes */
452 mlx5e_modify_rq(rq, MLX5_RQC_STATE_RDY, MLX5_RQC_STATE_ERR);
453 while (!mlx5_wq_ll_is_empty(&rq->wq))
456 /* avoid destroying rq before mlx5e_poll_rx_cq() is done with it */
457 napi_synchronize(&rq->channel->napi);
459 mlx5e_disable_rq(rq);
460 mlx5e_destroy_rq(rq);
463 static void mlx5e_free_sq_db(struct mlx5e_sq *sq)
469 static int mlx5e_alloc_sq_db(struct mlx5e_sq *sq, int numa)
471 int wq_sz = mlx5_wq_cyc_get_size(&sq->wq);
472 int df_sz = wq_sz * MLX5_SEND_WQEBB_NUM_DS;
474 sq->skb = kzalloc_node(wq_sz * sizeof(*sq->skb), GFP_KERNEL, numa);
475 sq->dma_fifo = kzalloc_node(df_sz * sizeof(*sq->dma_fifo), GFP_KERNEL,
478 if (!sq->skb || !sq->dma_fifo) {
479 mlx5e_free_sq_db(sq);
483 sq->dma_fifo_mask = df_sz - 1;
488 static int mlx5e_create_sq(struct mlx5e_channel *c,
490 struct mlx5e_sq_param *param,
493 struct mlx5e_priv *priv = c->priv;
494 struct mlx5_core_dev *mdev = priv->mdev;
496 void *sqc = param->sqc;
497 void *sqc_wq = MLX5_ADDR_OF(sqc, sqc, wq);
501 err = mlx5_alloc_map_uar(mdev, &sq->uar);
505 err = mlx5_wq_cyc_create(mdev, ¶m->wq, sqc_wq, &sq->wq,
508 goto err_unmap_free_uar;
510 sq->wq.db = &sq->wq.db[MLX5_SND_DBR];
511 sq->uar_map = sq->uar.map;
512 sq->bf_buf_size = (1 << MLX5_CAP_GEN(mdev, log_bf_reg_size)) / 2;
514 err = mlx5e_alloc_sq_db(sq, cpu_to_node(c->cpu));
516 goto err_sq_wq_destroy;
518 txq_ix = c->ix + tc * priv->params.num_channels;
519 sq->txq = netdev_get_tx_queue(priv->netdev, txq_ix);
522 sq->mkey_be = c->mkey_be;
525 sq->edge = (sq->wq.sz_m1 + 1) - MLX5_SEND_WQE_MAX_WQEBBS;
526 priv->txq_to_sq_map[txq_ix] = sq;
531 mlx5_wq_destroy(&sq->wq_ctrl);
534 mlx5_unmap_free_uar(mdev, &sq->uar);
539 static void mlx5e_destroy_sq(struct mlx5e_sq *sq)
541 struct mlx5e_channel *c = sq->channel;
542 struct mlx5e_priv *priv = c->priv;
544 mlx5e_free_sq_db(sq);
545 mlx5_wq_destroy(&sq->wq_ctrl);
546 mlx5_unmap_free_uar(priv->mdev, &sq->uar);
549 static int mlx5e_enable_sq(struct mlx5e_sq *sq, struct mlx5e_sq_param *param)
551 struct mlx5e_channel *c = sq->channel;
552 struct mlx5e_priv *priv = c->priv;
553 struct mlx5_core_dev *mdev = priv->mdev;
561 inlen = MLX5_ST_SZ_BYTES(create_sq_in) +
562 sizeof(u64) * sq->wq_ctrl.buf.npages;
563 in = mlx5_vzalloc(inlen);
567 sqc = MLX5_ADDR_OF(create_sq_in, in, ctx);
568 wq = MLX5_ADDR_OF(sqc, sqc, wq);
570 memcpy(sqc, param->sqc, sizeof(param->sqc));
572 MLX5_SET(sqc, sqc, user_index, sq->tc);
573 MLX5_SET(sqc, sqc, tis_num_0, priv->tisn[sq->tc]);
574 MLX5_SET(sqc, sqc, cqn, c->sq[sq->tc].cq.mcq.cqn);
575 MLX5_SET(sqc, sqc, state, MLX5_SQC_STATE_RST);
576 MLX5_SET(sqc, sqc, tis_lst_sz, 1);
577 MLX5_SET(sqc, sqc, flush_in_error_en, 1);
579 MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_CYCLIC);
580 MLX5_SET(wq, wq, uar_page, sq->uar.index);
581 MLX5_SET(wq, wq, log_wq_pg_sz, sq->wq_ctrl.buf.page_shift -
583 MLX5_SET64(wq, wq, dbr_addr, sq->wq_ctrl.db.dma);
585 mlx5_fill_page_array(&sq->wq_ctrl.buf,
586 (__be64 *)MLX5_ADDR_OF(wq, wq, pas));
588 err = mlx5_core_create_sq(mdev, in, inlen, &sq->sqn);
595 static int mlx5e_modify_sq(struct mlx5e_sq *sq, int curr_state, int next_state)
597 struct mlx5e_channel *c = sq->channel;
598 struct mlx5e_priv *priv = c->priv;
599 struct mlx5_core_dev *mdev = priv->mdev;
606 inlen = MLX5_ST_SZ_BYTES(modify_sq_in);
607 in = mlx5_vzalloc(inlen);
611 sqc = MLX5_ADDR_OF(modify_sq_in, in, ctx);
613 MLX5_SET(modify_sq_in, in, sq_state, curr_state);
614 MLX5_SET(sqc, sqc, state, next_state);
616 err = mlx5_core_modify_sq(mdev, sq->sqn, in, inlen);
623 static void mlx5e_disable_sq(struct mlx5e_sq *sq)
625 struct mlx5e_channel *c = sq->channel;
626 struct mlx5e_priv *priv = c->priv;
627 struct mlx5_core_dev *mdev = priv->mdev;
629 mlx5_core_destroy_sq(mdev, sq->sqn);
632 static int mlx5e_open_sq(struct mlx5e_channel *c,
634 struct mlx5e_sq_param *param,
639 err = mlx5e_create_sq(c, tc, param, sq);
643 err = mlx5e_enable_sq(sq, param);
647 err = mlx5e_modify_sq(sq, MLX5_SQC_STATE_RST, MLX5_SQC_STATE_RDY);
651 set_bit(MLX5E_SQ_STATE_WAKE_TXQ_ENABLE, &sq->state);
652 netdev_tx_reset_queue(sq->txq);
653 netif_tx_start_queue(sq->txq);
658 mlx5e_disable_sq(sq);
660 mlx5e_destroy_sq(sq);
665 static inline void netif_tx_disable_queue(struct netdev_queue *txq)
667 __netif_tx_lock_bh(txq);
668 netif_tx_stop_queue(txq);
669 __netif_tx_unlock_bh(txq);
672 static void mlx5e_close_sq(struct mlx5e_sq *sq)
674 clear_bit(MLX5E_SQ_STATE_WAKE_TXQ_ENABLE, &sq->state);
675 napi_synchronize(&sq->channel->napi); /* prevent netif_tx_wake_queue */
676 netif_tx_disable_queue(sq->txq);
678 /* ensure hw is notified of all pending wqes */
679 if (mlx5e_sq_has_room_for(sq, 1))
680 mlx5e_send_nop(sq, true);
682 mlx5e_modify_sq(sq, MLX5_SQC_STATE_RDY, MLX5_SQC_STATE_ERR);
683 while (sq->cc != sq->pc) /* wait till sq is empty */
686 /* avoid destroying sq before mlx5e_poll_tx_cq() is done with it */
687 napi_synchronize(&sq->channel->napi);
689 mlx5e_disable_sq(sq);
690 mlx5e_destroy_sq(sq);
693 static int mlx5e_create_cq(struct mlx5e_channel *c,
694 struct mlx5e_cq_param *param,
697 struct mlx5e_priv *priv = c->priv;
698 struct mlx5_core_dev *mdev = priv->mdev;
699 struct mlx5_core_cq *mcq = &cq->mcq;
705 param->wq.numa = cpu_to_node(c->cpu);
706 param->eq_ix = c->ix;
708 err = mlx5_cqwq_create(mdev, ¶m->wq, param->cqc, &cq->wq,
713 mlx5_vector2eqn(mdev, param->eq_ix, &eqn_not_used, &irqn);
718 mcq->set_ci_db = cq->wq_ctrl.db.db;
719 mcq->arm_db = cq->wq_ctrl.db.db + 1;
722 mcq->vector = param->eq_ix;
723 mcq->comp = mlx5e_completion_event;
724 mcq->event = mlx5e_cq_error_event;
726 mcq->uar = &priv->cq_uar;
728 for (i = 0; i < mlx5_cqwq_get_size(&cq->wq); i++) {
729 struct mlx5_cqe64 *cqe = mlx5_cqwq_get_wqe(&cq->wq, i);
739 static void mlx5e_destroy_cq(struct mlx5e_cq *cq)
741 mlx5_wq_destroy(&cq->wq_ctrl);
744 static int mlx5e_enable_cq(struct mlx5e_cq *cq, struct mlx5e_cq_param *param)
746 struct mlx5e_channel *c = cq->channel;
747 struct mlx5e_priv *priv = c->priv;
748 struct mlx5_core_dev *mdev = priv->mdev;
749 struct mlx5_core_cq *mcq = &cq->mcq;
758 inlen = MLX5_ST_SZ_BYTES(create_cq_in) +
759 sizeof(u64) * cq->wq_ctrl.buf.npages;
760 in = mlx5_vzalloc(inlen);
764 cqc = MLX5_ADDR_OF(create_cq_in, in, cq_context);
766 memcpy(cqc, param->cqc, sizeof(param->cqc));
768 mlx5_fill_page_array(&cq->wq_ctrl.buf,
769 (__be64 *)MLX5_ADDR_OF(create_cq_in, in, pas));
771 mlx5_vector2eqn(mdev, param->eq_ix, &eqn, &irqn_not_used);
773 MLX5_SET(cqc, cqc, c_eqn, eqn);
774 MLX5_SET(cqc, cqc, uar_page, mcq->uar->index);
775 MLX5_SET(cqc, cqc, log_page_size, cq->wq_ctrl.buf.page_shift -
777 MLX5_SET64(cqc, cqc, dbr_addr, cq->wq_ctrl.db.dma);
779 err = mlx5_core_create_cq(mdev, mcq, in, inlen);
791 static void mlx5e_disable_cq(struct mlx5e_cq *cq)
793 struct mlx5e_channel *c = cq->channel;
794 struct mlx5e_priv *priv = c->priv;
795 struct mlx5_core_dev *mdev = priv->mdev;
797 mlx5_core_destroy_cq(mdev, &cq->mcq);
800 static int mlx5e_open_cq(struct mlx5e_channel *c,
801 struct mlx5e_cq_param *param,
803 u16 moderation_usecs,
804 u16 moderation_frames)
807 struct mlx5e_priv *priv = c->priv;
808 struct mlx5_core_dev *mdev = priv->mdev;
810 err = mlx5e_create_cq(c, param, cq);
814 err = mlx5e_enable_cq(cq, param);
818 err = mlx5_core_modify_cq_moderation(mdev, &cq->mcq,
827 mlx5e_destroy_cq(cq);
832 static void mlx5e_close_cq(struct mlx5e_cq *cq)
834 mlx5e_disable_cq(cq);
835 mlx5e_destroy_cq(cq);
838 static int mlx5e_get_cpu(struct mlx5e_priv *priv, int ix)
840 return cpumask_first(priv->mdev->priv.irq_info[ix].mask);
843 static int mlx5e_open_tx_cqs(struct mlx5e_channel *c,
844 struct mlx5e_channel_param *cparam)
846 struct mlx5e_priv *priv = c->priv;
850 for (tc = 0; tc < c->num_tc; tc++) {
851 err = mlx5e_open_cq(c, &cparam->tx_cq, &c->sq[tc].cq,
852 priv->params.tx_cq_moderation_usec,
853 priv->params.tx_cq_moderation_pkts);
855 goto err_close_tx_cqs;
861 for (tc--; tc >= 0; tc--)
862 mlx5e_close_cq(&c->sq[tc].cq);
867 static void mlx5e_close_tx_cqs(struct mlx5e_channel *c)
871 for (tc = 0; tc < c->num_tc; tc++)
872 mlx5e_close_cq(&c->sq[tc].cq);
875 static int mlx5e_open_sqs(struct mlx5e_channel *c,
876 struct mlx5e_channel_param *cparam)
881 for (tc = 0; tc < c->num_tc; tc++) {
882 err = mlx5e_open_sq(c, tc, &cparam->sq, &c->sq[tc]);
890 for (tc--; tc >= 0; tc--)
891 mlx5e_close_sq(&c->sq[tc]);
896 static void mlx5e_close_sqs(struct mlx5e_channel *c)
900 for (tc = 0; tc < c->num_tc; tc++)
901 mlx5e_close_sq(&c->sq[tc]);
904 static void mlx5e_build_tc_to_txq_map(struct mlx5e_channel *c,
909 for (i = 0; i < MLX5E_MAX_NUM_TC; i++)
910 c->tc_to_txq_map[i] = c->ix + i * num_channels;
913 static int mlx5e_open_channel(struct mlx5e_priv *priv, int ix,
914 struct mlx5e_channel_param *cparam,
915 struct mlx5e_channel **cp)
917 struct net_device *netdev = priv->netdev;
918 int cpu = mlx5e_get_cpu(priv, ix);
919 struct mlx5e_channel *c;
922 c = kzalloc_node(sizeof(*c), GFP_KERNEL, cpu_to_node(cpu));
929 c->pdev = &priv->mdev->pdev->dev;
930 c->netdev = priv->netdev;
931 c->mkey_be = cpu_to_be32(priv->mr.key);
932 c->num_tc = priv->num_tc;
934 mlx5e_build_tc_to_txq_map(c, priv->params.num_channels);
936 netif_napi_add(netdev, &c->napi, mlx5e_napi_poll, 64);
938 err = mlx5e_open_tx_cqs(c, cparam);
942 err = mlx5e_open_cq(c, &cparam->rx_cq, &c->rq.cq,
943 priv->params.rx_cq_moderation_usec,
944 priv->params.rx_cq_moderation_pkts);
946 goto err_close_tx_cqs;
948 napi_enable(&c->napi);
950 err = mlx5e_open_sqs(c, cparam);
952 goto err_disable_napi;
954 err = mlx5e_open_rq(c, &cparam->rq, &c->rq);
958 netif_set_xps_queue(netdev, get_cpu_mask(c->cpu), ix);
967 napi_disable(&c->napi);
968 mlx5e_close_cq(&c->rq.cq);
971 mlx5e_close_tx_cqs(c);
974 netif_napi_del(&c->napi);
980 static void mlx5e_close_channel(struct mlx5e_channel *c)
982 mlx5e_close_rq(&c->rq);
984 napi_disable(&c->napi);
985 mlx5e_close_cq(&c->rq.cq);
986 mlx5e_close_tx_cqs(c);
987 netif_napi_del(&c->napi);
991 static void mlx5e_build_rq_param(struct mlx5e_priv *priv,
992 struct mlx5e_rq_param *param)
994 void *rqc = param->rqc;
995 void *wq = MLX5_ADDR_OF(rqc, rqc, wq);
997 MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_LINKED_LIST);
998 MLX5_SET(wq, wq, end_padding_mode, MLX5_WQ_END_PAD_MODE_ALIGN);
999 MLX5_SET(wq, wq, log_wq_stride, ilog2(sizeof(struct mlx5e_rx_wqe)));
1000 MLX5_SET(wq, wq, log_wq_sz, priv->params.log_rq_size);
1001 MLX5_SET(wq, wq, pd, priv->pdn);
1003 param->wq.numa = dev_to_node(&priv->mdev->pdev->dev);
1004 param->wq.linear = 1;
1007 static void mlx5e_build_sq_param(struct mlx5e_priv *priv,
1008 struct mlx5e_sq_param *param)
1010 void *sqc = param->sqc;
1011 void *wq = MLX5_ADDR_OF(sqc, sqc, wq);
1013 MLX5_SET(wq, wq, log_wq_sz, priv->params.log_sq_size);
1014 MLX5_SET(wq, wq, log_wq_stride, ilog2(MLX5_SEND_WQE_BB));
1015 MLX5_SET(wq, wq, pd, priv->pdn);
1017 param->wq.numa = dev_to_node(&priv->mdev->pdev->dev);
1020 static void mlx5e_build_common_cq_param(struct mlx5e_priv *priv,
1021 struct mlx5e_cq_param *param)
1023 void *cqc = param->cqc;
1025 MLX5_SET(cqc, cqc, uar_page, priv->cq_uar.index);
1028 static void mlx5e_build_rx_cq_param(struct mlx5e_priv *priv,
1029 struct mlx5e_cq_param *param)
1031 void *cqc = param->cqc;
1033 MLX5_SET(cqc, cqc, log_cq_size, priv->params.log_rq_size);
1035 mlx5e_build_common_cq_param(priv, param);
1038 static void mlx5e_build_tx_cq_param(struct mlx5e_priv *priv,
1039 struct mlx5e_cq_param *param)
1041 void *cqc = param->cqc;
1043 MLX5_SET(cqc, cqc, log_cq_size, priv->params.log_sq_size);
1045 mlx5e_build_common_cq_param(priv, param);
1048 static void mlx5e_build_channel_param(struct mlx5e_priv *priv,
1049 struct mlx5e_channel_param *cparam)
1051 memset(cparam, 0, sizeof(*cparam));
1053 mlx5e_build_rq_param(priv, &cparam->rq);
1054 mlx5e_build_sq_param(priv, &cparam->sq);
1055 mlx5e_build_rx_cq_param(priv, &cparam->rx_cq);
1056 mlx5e_build_tx_cq_param(priv, &cparam->tx_cq);
1059 static int mlx5e_open_channels(struct mlx5e_priv *priv)
1061 struct mlx5e_channel_param cparam;
1066 priv->channel = kcalloc(priv->params.num_channels,
1067 sizeof(struct mlx5e_channel *), GFP_KERNEL);
1069 priv->txq_to_sq_map = kcalloc(priv->params.num_channels * priv->num_tc,
1070 sizeof(struct mlx5e_sq *), GFP_KERNEL);
1072 if (!priv->channel || !priv->txq_to_sq_map)
1073 goto err_free_txq_to_sq_map;
1075 mlx5e_build_channel_param(priv, &cparam);
1076 for (i = 0; i < priv->params.num_channels; i++) {
1077 err = mlx5e_open_channel(priv, i, &cparam, &priv->channel[i]);
1079 goto err_close_channels;
1082 for (j = 0; j < priv->params.num_channels; j++) {
1083 err = mlx5e_wait_for_min_rx_wqes(&priv->channel[j]->rq);
1085 goto err_close_channels;
1091 for (i--; i >= 0; i--)
1092 mlx5e_close_channel(priv->channel[i]);
1094 err_free_txq_to_sq_map:
1095 kfree(priv->txq_to_sq_map);
1096 kfree(priv->channel);
1101 static void mlx5e_close_channels(struct mlx5e_priv *priv)
1105 for (i = 0; i < priv->params.num_channels; i++)
1106 mlx5e_close_channel(priv->channel[i]);
1108 kfree(priv->txq_to_sq_map);
1109 kfree(priv->channel);
1112 static int mlx5e_open_tis(struct mlx5e_priv *priv, int tc)
1114 struct mlx5_core_dev *mdev = priv->mdev;
1115 u32 in[MLX5_ST_SZ_DW(create_tis_in)];
1116 void *tisc = MLX5_ADDR_OF(create_tis_in, in, ctx);
1118 memset(in, 0, sizeof(in));
1120 MLX5_SET(tisc, tisc, prio, tc);
1121 MLX5_SET(tisc, tisc, transport_domain, priv->tdn);
1123 return mlx5_core_create_tis(mdev, in, sizeof(in), &priv->tisn[tc]);
1126 static void mlx5e_close_tis(struct mlx5e_priv *priv, int tc)
1128 mlx5_core_destroy_tis(priv->mdev, priv->tisn[tc]);
1131 static int mlx5e_open_tises(struct mlx5e_priv *priv)
1133 int num_tc = priv->num_tc;
1137 for (tc = 0; tc < num_tc; tc++) {
1138 err = mlx5e_open_tis(priv, tc);
1140 goto err_close_tises;
1146 for (tc--; tc >= 0; tc--)
1147 mlx5e_close_tis(priv, tc);
1152 static void mlx5e_close_tises(struct mlx5e_priv *priv)
1154 int num_tc = priv->num_tc;
1157 for (tc = 0; tc < num_tc; tc++)
1158 mlx5e_close_tis(priv, tc);
1161 static int mlx5e_rx_hash_fn(int hfunc)
1163 return (hfunc == ETH_RSS_HASH_TOP) ?
1164 MLX5_RX_HASH_FN_TOEPLITZ :
1165 MLX5_RX_HASH_FN_INVERTED_XOR8;
1168 static int mlx5e_bits_invert(unsigned long a, int size)
1173 for (i = 0; i < size; i++)
1174 inv |= (test_bit(size - i - 1, &a) ? 1 : 0) << i;
1179 static int mlx5e_open_rqt(struct mlx5e_priv *priv)
1181 struct mlx5_core_dev *mdev = priv->mdev;
1183 u32 out[MLX5_ST_SZ_DW(create_rqt_out)];
1187 int log_tbl_sz = priv->params.rx_hash_log_tbl_sz;
1188 int sz = 1 << log_tbl_sz;
1191 inlen = MLX5_ST_SZ_BYTES(create_rqt_in) + sizeof(u32) * sz;
1192 in = mlx5_vzalloc(inlen);
1196 rqtc = MLX5_ADDR_OF(create_rqt_in, in, rqt_context);
1198 MLX5_SET(rqtc, rqtc, rqt_actual_size, sz);
1199 MLX5_SET(rqtc, rqtc, rqt_max_size, sz);
1201 for (i = 0; i < sz; i++) {
1204 if (priv->params.rss_hfunc == ETH_RSS_HASH_XOR)
1205 ix = mlx5e_bits_invert(i, log_tbl_sz);
1207 ix = ix % priv->params.num_channels;
1208 MLX5_SET(rqtc, rqtc, rq_num[i], priv->channel[ix]->rq.rqn);
1211 MLX5_SET(create_rqt_in, in, opcode, MLX5_CMD_OP_CREATE_RQT);
1213 memset(out, 0, sizeof(out));
1214 err = mlx5_cmd_exec_check_status(mdev, in, inlen, out, sizeof(out));
1216 priv->rqtn = MLX5_GET(create_rqt_out, out, rqtn);
1223 static void mlx5e_close_rqt(struct mlx5e_priv *priv)
1225 u32 in[MLX5_ST_SZ_DW(destroy_rqt_in)];
1226 u32 out[MLX5_ST_SZ_DW(destroy_rqt_out)];
1228 memset(in, 0, sizeof(in));
1230 MLX5_SET(destroy_rqt_in, in, opcode, MLX5_CMD_OP_DESTROY_RQT);
1231 MLX5_SET(destroy_rqt_in, in, rqtn, priv->rqtn);
1233 mlx5_cmd_exec_check_status(priv->mdev, in, sizeof(in), out,
1237 static void mlx5e_build_tir_ctx(struct mlx5e_priv *priv, u32 *tirc, int tt)
1239 void *hfso = MLX5_ADDR_OF(tirc, tirc, rx_hash_field_selector_outer);
1241 MLX5_SET(tirc, tirc, transport_domain, priv->tdn);
1243 #define ROUGH_MAX_L2_L3_HDR_SZ 256
1245 #define MLX5_HASH_IP (MLX5_HASH_FIELD_SEL_SRC_IP |\
1246 MLX5_HASH_FIELD_SEL_DST_IP)
1248 #define MLX5_HASH_ALL (MLX5_HASH_FIELD_SEL_SRC_IP |\
1249 MLX5_HASH_FIELD_SEL_DST_IP |\
1250 MLX5_HASH_FIELD_SEL_L4_SPORT |\
1251 MLX5_HASH_FIELD_SEL_L4_DPORT)
1253 if (priv->params.lro_en) {
1254 MLX5_SET(tirc, tirc, lro_enable_mask,
1255 MLX5_TIRC_LRO_ENABLE_MASK_IPV4_LRO |
1256 MLX5_TIRC_LRO_ENABLE_MASK_IPV6_LRO);
1257 MLX5_SET(tirc, tirc, lro_max_ip_payload_size,
1258 (priv->params.lro_wqe_sz -
1259 ROUGH_MAX_L2_L3_HDR_SZ) >> 8);
1260 MLX5_SET(tirc, tirc, lro_timeout_period_usecs,
1261 MLX5_CAP_ETH(priv->mdev,
1262 lro_timer_supported_periods[3]));
1267 MLX5_SET(tirc, tirc, disp_type,
1268 MLX5_TIRC_DISP_TYPE_DIRECT);
1269 MLX5_SET(tirc, tirc, inline_rqn,
1270 priv->channel[0]->rq.rqn);
1273 MLX5_SET(tirc, tirc, disp_type,
1274 MLX5_TIRC_DISP_TYPE_INDIRECT);
1275 MLX5_SET(tirc, tirc, indirect_table,
1277 MLX5_SET(tirc, tirc, rx_hash_fn,
1278 mlx5e_rx_hash_fn(priv->params.rss_hfunc));
1279 if (priv->params.rss_hfunc == ETH_RSS_HASH_TOP) {
1280 void *rss_key = MLX5_ADDR_OF(tirc, tirc,
1281 rx_hash_toeplitz_key);
1282 size_t len = MLX5_FLD_SZ_BYTES(tirc,
1283 rx_hash_toeplitz_key);
1285 MLX5_SET(tirc, tirc, rx_hash_symmetric, 1);
1286 netdev_rss_key_fill(rss_key, len);
1292 case MLX5E_TT_IPV4_TCP:
1293 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
1294 MLX5_L3_PROT_TYPE_IPV4);
1295 MLX5_SET(rx_hash_field_select, hfso, l4_prot_type,
1296 MLX5_L4_PROT_TYPE_TCP);
1297 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
1301 case MLX5E_TT_IPV6_TCP:
1302 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
1303 MLX5_L3_PROT_TYPE_IPV6);
1304 MLX5_SET(rx_hash_field_select, hfso, l4_prot_type,
1305 MLX5_L4_PROT_TYPE_TCP);
1306 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
1310 case MLX5E_TT_IPV4_UDP:
1311 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
1312 MLX5_L3_PROT_TYPE_IPV4);
1313 MLX5_SET(rx_hash_field_select, hfso, l4_prot_type,
1314 MLX5_L4_PROT_TYPE_UDP);
1315 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
1319 case MLX5E_TT_IPV6_UDP:
1320 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
1321 MLX5_L3_PROT_TYPE_IPV6);
1322 MLX5_SET(rx_hash_field_select, hfso, l4_prot_type,
1323 MLX5_L4_PROT_TYPE_UDP);
1324 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
1329 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
1330 MLX5_L3_PROT_TYPE_IPV4);
1331 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
1336 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
1337 MLX5_L3_PROT_TYPE_IPV6);
1338 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
1344 static int mlx5e_open_tir(struct mlx5e_priv *priv, int tt)
1346 struct mlx5_core_dev *mdev = priv->mdev;
1352 inlen = MLX5_ST_SZ_BYTES(create_tir_in);
1353 in = mlx5_vzalloc(inlen);
1357 tirc = MLX5_ADDR_OF(create_tir_in, in, ctx);
1359 mlx5e_build_tir_ctx(priv, tirc, tt);
1361 err = mlx5_core_create_tir(mdev, in, inlen, &priv->tirn[tt]);
1368 static void mlx5e_close_tir(struct mlx5e_priv *priv, int tt)
1370 mlx5_core_destroy_tir(priv->mdev, priv->tirn[tt]);
1373 static int mlx5e_open_tirs(struct mlx5e_priv *priv)
1378 for (i = 0; i < MLX5E_NUM_TT; i++) {
1379 err = mlx5e_open_tir(priv, i);
1381 goto err_close_tirs;
1387 for (i--; i >= 0; i--)
1388 mlx5e_close_tir(priv, i);
1393 static void mlx5e_close_tirs(struct mlx5e_priv *priv)
1397 for (i = 0; i < MLX5E_NUM_TT; i++)
1398 mlx5e_close_tir(priv, i);
1401 static int mlx5e_set_dev_port_mtu(struct net_device *netdev)
1403 struct mlx5e_priv *priv = netdev_priv(netdev);
1404 struct mlx5_core_dev *mdev = priv->mdev;
1408 err = mlx5_set_port_mtu(mdev, MLX5E_SW2HW_MTU(netdev->mtu), 1);
1412 mlx5_query_port_oper_mtu(mdev, &hw_mtu, 1);
1414 if (MLX5E_HW2SW_MTU(hw_mtu) != netdev->mtu)
1415 netdev_warn(netdev, "%s: Port MTU %d is different than netdev mtu %d\n",
1416 __func__, MLX5E_HW2SW_MTU(hw_mtu), netdev->mtu);
1418 netdev->mtu = MLX5E_HW2SW_MTU(hw_mtu);
1422 int mlx5e_open_locked(struct net_device *netdev)
1424 struct mlx5e_priv *priv = netdev_priv(netdev);
1428 num_txqs = priv->params.num_channels * priv->params.num_tc;
1429 netif_set_real_num_tx_queues(netdev, num_txqs);
1430 netif_set_real_num_rx_queues(netdev, priv->params.num_channels);
1432 err = mlx5e_set_dev_port_mtu(netdev);
1436 err = mlx5e_open_tises(priv);
1438 netdev_err(netdev, "%s: mlx5e_open_tises failed, %d\n",
1443 err = mlx5e_open_channels(priv);
1445 netdev_err(netdev, "%s: mlx5e_open_channels failed, %d\n",
1447 goto err_close_tises;
1450 err = mlx5e_open_rqt(priv);
1452 netdev_err(netdev, "%s: mlx5e_open_rqt failed, %d\n",
1454 goto err_close_channels;
1457 err = mlx5e_open_tirs(priv);
1459 netdev_err(netdev, "%s: mlx5e_open_tir failed, %d\n",
1461 goto err_close_rqls;
1464 err = mlx5e_open_flow_table(priv);
1466 netdev_err(netdev, "%s: mlx5e_open_flow_table failed, %d\n",
1468 goto err_close_tirs;
1471 err = mlx5e_add_all_vlan_rules(priv);
1473 netdev_err(netdev, "%s: mlx5e_add_all_vlan_rules failed, %d\n",
1475 goto err_close_flow_table;
1478 mlx5e_init_eth_addr(priv);
1480 set_bit(MLX5E_STATE_OPENED, &priv->state);
1482 mlx5e_update_carrier(priv);
1483 mlx5e_set_rx_mode_core(priv);
1485 schedule_delayed_work(&priv->update_stats_work, 0);
1488 err_close_flow_table:
1489 mlx5e_close_flow_table(priv);
1492 mlx5e_close_tirs(priv);
1495 mlx5e_close_rqt(priv);
1498 mlx5e_close_channels(priv);
1501 mlx5e_close_tises(priv);
1506 static int mlx5e_open(struct net_device *netdev)
1508 struct mlx5e_priv *priv = netdev_priv(netdev);
1511 mutex_lock(&priv->state_lock);
1512 err = mlx5e_open_locked(netdev);
1513 mutex_unlock(&priv->state_lock);
1518 int mlx5e_close_locked(struct net_device *netdev)
1520 struct mlx5e_priv *priv = netdev_priv(netdev);
1522 clear_bit(MLX5E_STATE_OPENED, &priv->state);
1524 mlx5e_set_rx_mode_core(priv);
1525 mlx5e_del_all_vlan_rules(priv);
1526 netif_carrier_off(priv->netdev);
1527 mlx5e_close_flow_table(priv);
1528 mlx5e_close_tirs(priv);
1529 mlx5e_close_rqt(priv);
1530 mlx5e_close_channels(priv);
1531 mlx5e_close_tises(priv);
1536 static int mlx5e_close(struct net_device *netdev)
1538 struct mlx5e_priv *priv = netdev_priv(netdev);
1541 mutex_lock(&priv->state_lock);
1542 err = mlx5e_close_locked(netdev);
1543 mutex_unlock(&priv->state_lock);
1548 int mlx5e_update_priv_params(struct mlx5e_priv *priv,
1549 struct mlx5e_params *new_params)
1554 WARN_ON(!mutex_is_locked(&priv->state_lock));
1556 was_opened = test_bit(MLX5E_STATE_OPENED, &priv->state);
1558 mlx5e_close_locked(priv->netdev);
1560 priv->params = *new_params;
1563 err = mlx5e_open_locked(priv->netdev);
1568 static struct rtnl_link_stats64 *
1569 mlx5e_get_stats(struct net_device *dev, struct rtnl_link_stats64 *stats)
1571 struct mlx5e_priv *priv = netdev_priv(dev);
1572 struct mlx5e_vport_stats *vstats = &priv->stats.vport;
1574 stats->rx_packets = vstats->rx_packets;
1575 stats->rx_bytes = vstats->rx_bytes;
1576 stats->tx_packets = vstats->tx_packets;
1577 stats->tx_bytes = vstats->tx_bytes;
1578 stats->multicast = vstats->rx_multicast_packets +
1579 vstats->tx_multicast_packets;
1580 stats->tx_errors = vstats->tx_error_packets;
1581 stats->rx_errors = vstats->rx_error_packets;
1582 stats->tx_dropped = vstats->tx_queue_dropped;
1583 stats->rx_crc_errors = 0;
1584 stats->rx_length_errors = 0;
1589 static void mlx5e_set_rx_mode(struct net_device *dev)
1591 struct mlx5e_priv *priv = netdev_priv(dev);
1593 schedule_work(&priv->set_rx_mode_work);
1596 static int mlx5e_set_mac(struct net_device *netdev, void *addr)
1598 struct mlx5e_priv *priv = netdev_priv(netdev);
1599 struct sockaddr *saddr = addr;
1601 if (!is_valid_ether_addr(saddr->sa_data))
1602 return -EADDRNOTAVAIL;
1604 netif_addr_lock_bh(netdev);
1605 ether_addr_copy(netdev->dev_addr, saddr->sa_data);
1606 netif_addr_unlock_bh(netdev);
1608 schedule_work(&priv->set_rx_mode_work);
1613 static int mlx5e_set_features(struct net_device *netdev,
1614 netdev_features_t features)
1616 struct mlx5e_priv *priv = netdev_priv(netdev);
1617 netdev_features_t changes = features ^ netdev->features;
1618 struct mlx5e_params new_params;
1619 bool update_params = false;
1621 mutex_lock(&priv->state_lock);
1622 new_params = priv->params;
1624 if (changes & NETIF_F_LRO) {
1625 new_params.lro_en = !!(features & NETIF_F_LRO);
1626 update_params = true;
1630 mlx5e_update_priv_params(priv, &new_params);
1632 if (changes & NETIF_F_HW_VLAN_CTAG_FILTER) {
1633 if (features & NETIF_F_HW_VLAN_CTAG_FILTER)
1634 mlx5e_enable_vlan_filter(priv);
1636 mlx5e_disable_vlan_filter(priv);
1639 mutex_unlock(&priv->state_lock);
1644 static int mlx5e_change_mtu(struct net_device *netdev, int new_mtu)
1646 struct mlx5e_priv *priv = netdev_priv(netdev);
1647 struct mlx5_core_dev *mdev = priv->mdev;
1651 mlx5_query_port_max_mtu(mdev, &max_mtu, 1);
1653 if (new_mtu > max_mtu) {
1655 "%s: Bad MTU (%d) > (%d) Max\n",
1656 __func__, new_mtu, max_mtu);
1660 mutex_lock(&priv->state_lock);
1661 netdev->mtu = new_mtu;
1662 err = mlx5e_update_priv_params(priv, &priv->params);
1663 mutex_unlock(&priv->state_lock);
1668 static struct net_device_ops mlx5e_netdev_ops = {
1669 .ndo_open = mlx5e_open,
1670 .ndo_stop = mlx5e_close,
1671 .ndo_start_xmit = mlx5e_xmit,
1672 .ndo_get_stats64 = mlx5e_get_stats,
1673 .ndo_set_rx_mode = mlx5e_set_rx_mode,
1674 .ndo_set_mac_address = mlx5e_set_mac,
1675 .ndo_vlan_rx_add_vid = mlx5e_vlan_rx_add_vid,
1676 .ndo_vlan_rx_kill_vid = mlx5e_vlan_rx_kill_vid,
1677 .ndo_set_features = mlx5e_set_features,
1678 .ndo_change_mtu = mlx5e_change_mtu,
1681 static int mlx5e_check_required_hca_cap(struct mlx5_core_dev *mdev)
1683 if (MLX5_CAP_GEN(mdev, port_type) != MLX5_CAP_PORT_TYPE_ETH)
1685 if (!MLX5_CAP_GEN(mdev, eth_net_offloads) ||
1686 !MLX5_CAP_GEN(mdev, nic_flow_table) ||
1687 !MLX5_CAP_ETH(mdev, csum_cap) ||
1688 !MLX5_CAP_ETH(mdev, max_lso_cap) ||
1689 !MLX5_CAP_ETH(mdev, vlan_cap) ||
1690 !MLX5_CAP_ETH(mdev, rss_ind_tbl_cap) ||
1691 MLX5_CAP_FLOWTABLE(mdev,
1692 flow_table_properties_nic_receive.max_ft_level)
1694 mlx5_core_warn(mdev,
1695 "Not creating net device, some required device capabilities are missing\n");
1701 static void mlx5e_build_netdev_priv(struct mlx5_core_dev *mdev,
1702 struct net_device *netdev,
1703 int num_comp_vectors)
1705 struct mlx5e_priv *priv = netdev_priv(netdev);
1707 priv->params.log_sq_size =
1708 MLX5E_PARAMS_DEFAULT_LOG_SQ_SIZE;
1709 priv->params.log_rq_size =
1710 MLX5E_PARAMS_DEFAULT_LOG_RQ_SIZE;
1711 priv->params.rx_cq_moderation_usec =
1712 MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_USEC;
1713 priv->params.rx_cq_moderation_pkts =
1714 MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_PKTS;
1715 priv->params.tx_cq_moderation_usec =
1716 MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_USEC;
1717 priv->params.tx_cq_moderation_pkts =
1718 MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_PKTS;
1719 priv->params.min_rx_wqes =
1720 MLX5E_PARAMS_DEFAULT_MIN_RX_WQES;
1721 priv->params.rx_hash_log_tbl_sz =
1722 (order_base_2(num_comp_vectors) >
1723 MLX5E_PARAMS_DEFAULT_RX_HASH_LOG_TBL_SZ) ?
1724 order_base_2(num_comp_vectors) :
1725 MLX5E_PARAMS_DEFAULT_RX_HASH_LOG_TBL_SZ;
1726 priv->params.num_tc = 1;
1727 priv->params.default_vlan_prio = 0;
1728 priv->params.rss_hfunc = ETH_RSS_HASH_XOR;
1730 priv->params.lro_en = false && !!MLX5_CAP_ETH(priv->mdev, lro_cap);
1731 priv->params.lro_wqe_sz =
1732 MLX5E_PARAMS_DEFAULT_LRO_WQE_SZ;
1735 priv->netdev = netdev;
1736 priv->params.num_channels = num_comp_vectors;
1737 priv->num_tc = priv->params.num_tc;
1738 priv->default_vlan_prio = priv->params.default_vlan_prio;
1740 spin_lock_init(&priv->async_events_spinlock);
1741 mutex_init(&priv->state_lock);
1743 INIT_WORK(&priv->update_carrier_work, mlx5e_update_carrier_work);
1744 INIT_WORK(&priv->set_rx_mode_work, mlx5e_set_rx_mode_work);
1745 INIT_DELAYED_WORK(&priv->update_stats_work, mlx5e_update_stats_work);
1748 static void mlx5e_set_netdev_dev_addr(struct net_device *netdev)
1750 struct mlx5e_priv *priv = netdev_priv(netdev);
1752 mlx5_query_nic_vport_mac_address(priv->mdev, netdev->dev_addr);
1755 static void mlx5e_build_netdev(struct net_device *netdev)
1757 struct mlx5e_priv *priv = netdev_priv(netdev);
1758 struct mlx5_core_dev *mdev = priv->mdev;
1760 SET_NETDEV_DEV(netdev, &mdev->pdev->dev);
1762 if (priv->num_tc > 1) {
1763 mlx5e_netdev_ops.ndo_select_queue = mlx5e_select_queue;
1766 netdev->netdev_ops = &mlx5e_netdev_ops;
1767 netdev->watchdog_timeo = 15 * HZ;
1769 netdev->ethtool_ops = &mlx5e_ethtool_ops;
1771 netdev->vlan_features |= NETIF_F_SG;
1772 netdev->vlan_features |= NETIF_F_IP_CSUM;
1773 netdev->vlan_features |= NETIF_F_IPV6_CSUM;
1774 netdev->vlan_features |= NETIF_F_GRO;
1775 netdev->vlan_features |= NETIF_F_TSO;
1776 netdev->vlan_features |= NETIF_F_TSO6;
1777 netdev->vlan_features |= NETIF_F_RXCSUM;
1778 netdev->vlan_features |= NETIF_F_RXHASH;
1780 if (!!MLX5_CAP_ETH(mdev, lro_cap))
1781 netdev->vlan_features |= NETIF_F_LRO;
1783 netdev->hw_features = netdev->vlan_features;
1784 netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_RX;
1785 netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_FILTER;
1787 netdev->features = netdev->hw_features;
1788 if (!priv->params.lro_en)
1789 netdev->features &= ~NETIF_F_LRO;
1791 netdev->features |= NETIF_F_HIGHDMA;
1793 netdev->priv_flags |= IFF_UNICAST_FLT;
1795 mlx5e_set_netdev_dev_addr(netdev);
1798 static int mlx5e_create_mkey(struct mlx5e_priv *priv, u32 pdn,
1799 struct mlx5_core_mr *mr)
1801 struct mlx5_core_dev *mdev = priv->mdev;
1802 struct mlx5_create_mkey_mbox_in *in;
1805 in = mlx5_vzalloc(sizeof(*in));
1809 in->seg.flags = MLX5_PERM_LOCAL_WRITE |
1810 MLX5_PERM_LOCAL_READ |
1811 MLX5_ACCESS_MODE_PA;
1812 in->seg.flags_pd = cpu_to_be32(pdn | MLX5_MKEY_LEN64);
1813 in->seg.qpn_mkey7_0 = cpu_to_be32(0xffffff << 8);
1815 err = mlx5_core_create_mkey(mdev, mr, in, sizeof(*in), NULL, NULL,
1823 static void *mlx5e_create_netdev(struct mlx5_core_dev *mdev)
1825 struct net_device *netdev;
1826 struct mlx5e_priv *priv;
1827 int ncv = mdev->priv.eq_table.num_comp_vectors;
1830 if (mlx5e_check_required_hca_cap(mdev))
1833 netdev = alloc_etherdev_mqs(sizeof(struct mlx5e_priv), ncv, ncv);
1835 mlx5_core_err(mdev, "alloc_etherdev_mqs() failed\n");
1839 mlx5e_build_netdev_priv(mdev, netdev, ncv);
1840 mlx5e_build_netdev(netdev);
1842 netif_carrier_off(netdev);
1844 priv = netdev_priv(netdev);
1846 err = mlx5_alloc_map_uar(mdev, &priv->cq_uar);
1848 netdev_err(netdev, "%s: mlx5_alloc_map_uar failed, %d\n",
1850 goto err_free_netdev;
1853 err = mlx5_core_alloc_pd(mdev, &priv->pdn);
1855 netdev_err(netdev, "%s: mlx5_core_alloc_pd failed, %d\n",
1857 goto err_unmap_free_uar;
1860 err = mlx5_alloc_transport_domain(mdev, &priv->tdn);
1862 netdev_err(netdev, "%s: mlx5_alloc_transport_domain failed, %d\n",
1864 goto err_dealloc_pd;
1867 err = mlx5e_create_mkey(priv, priv->pdn, &priv->mr);
1869 netdev_err(netdev, "%s: mlx5e_create_mkey failed, %d\n",
1871 goto err_dealloc_transport_domain;
1874 err = register_netdev(netdev);
1876 netdev_err(netdev, "%s: register_netdev failed, %d\n",
1878 goto err_destroy_mkey;
1881 mlx5e_enable_async_events(priv);
1886 mlx5_core_destroy_mkey(mdev, &priv->mr);
1888 err_dealloc_transport_domain:
1889 mlx5_dealloc_transport_domain(mdev, priv->tdn);
1892 mlx5_core_dealloc_pd(mdev, priv->pdn);
1895 mlx5_unmap_free_uar(mdev, &priv->cq_uar);
1898 free_netdev(netdev);
1903 static void mlx5e_destroy_netdev(struct mlx5_core_dev *mdev, void *vpriv)
1905 struct mlx5e_priv *priv = vpriv;
1906 struct net_device *netdev = priv->netdev;
1908 unregister_netdev(netdev);
1909 mlx5_core_destroy_mkey(priv->mdev, &priv->mr);
1910 mlx5_dealloc_transport_domain(priv->mdev, priv->tdn);
1911 mlx5_core_dealloc_pd(priv->mdev, priv->pdn);
1912 mlx5_unmap_free_uar(priv->mdev, &priv->cq_uar);
1913 mlx5e_disable_async_events(priv);
1914 flush_scheduled_work();
1915 free_netdev(netdev);
1918 static void *mlx5e_get_netdev(void *vpriv)
1920 struct mlx5e_priv *priv = vpriv;
1922 return priv->netdev;
1925 static struct mlx5_interface mlx5e_interface = {
1926 .add = mlx5e_create_netdev,
1927 .remove = mlx5e_destroy_netdev,
1928 .event = mlx5e_async_event,
1929 .protocol = MLX5_INTERFACE_PROTOCOL_ETH,
1930 .get_dev = mlx5e_get_netdev,
1933 void mlx5e_init(void)
1935 mlx5_register_interface(&mlx5e_interface);
1938 void mlx5e_cleanup(void)
1940 mlx5_unregister_interface(&mlx5e_interface);