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
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 <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;
47 struct mlx5e_cq_param {
48 u32 cqc[MLX5_ST_SZ_DW(cqc)];
49 struct mlx5_wq_param wq;
53 struct mlx5e_channel_param {
54 struct mlx5e_rq_param rq;
55 struct mlx5e_sq_param sq;
56 struct mlx5e_cq_param rx_cq;
57 struct mlx5e_cq_param tx_cq;
60 static void mlx5e_update_carrier(struct mlx5e_priv *priv)
62 struct mlx5_core_dev *mdev = priv->mdev;
65 port_state = mlx5_query_vport_state(mdev,
66 MLX5_QUERY_VPORT_STATE_IN_OP_MOD_VNIC_VPORT);
68 if (port_state == VPORT_STATE_UP)
69 netif_carrier_on(priv->netdev);
71 netif_carrier_off(priv->netdev);
74 static void mlx5e_update_carrier_work(struct work_struct *work)
76 struct mlx5e_priv *priv = container_of(work, struct mlx5e_priv,
79 mutex_lock(&priv->state_lock);
80 if (test_bit(MLX5E_STATE_OPENED, &priv->state))
81 mlx5e_update_carrier(priv);
82 mutex_unlock(&priv->state_lock);
85 static void mlx5e_update_pport_counters(struct mlx5e_priv *priv)
87 struct mlx5_core_dev *mdev = priv->mdev;
88 struct mlx5e_pport_stats *s = &priv->stats.pport;
91 int sz = MLX5_ST_SZ_BYTES(ppcnt_reg);
93 in = mlx5_vzalloc(sz);
94 out = mlx5_vzalloc(sz);
98 MLX5_SET(ppcnt_reg, in, local_port, 1);
100 MLX5_SET(ppcnt_reg, in, grp, MLX5_IEEE_802_3_COUNTERS_GROUP);
101 mlx5_core_access_reg(mdev, in, sz, out,
102 sz, MLX5_REG_PPCNT, 0, 0);
103 memcpy(s->IEEE_802_3_counters,
104 MLX5_ADDR_OF(ppcnt_reg, out, counter_set),
105 sizeof(s->IEEE_802_3_counters));
107 MLX5_SET(ppcnt_reg, in, grp, MLX5_RFC_2863_COUNTERS_GROUP);
108 mlx5_core_access_reg(mdev, in, sz, out,
109 sz, MLX5_REG_PPCNT, 0, 0);
110 memcpy(s->RFC_2863_counters,
111 MLX5_ADDR_OF(ppcnt_reg, out, counter_set),
112 sizeof(s->RFC_2863_counters));
114 MLX5_SET(ppcnt_reg, in, grp, MLX5_RFC_2819_COUNTERS_GROUP);
115 mlx5_core_access_reg(mdev, in, sz, out,
116 sz, MLX5_REG_PPCNT, 0, 0);
117 memcpy(s->RFC_2819_counters,
118 MLX5_ADDR_OF(ppcnt_reg, out, counter_set),
119 sizeof(s->RFC_2819_counters));
126 void mlx5e_update_stats(struct mlx5e_priv *priv)
128 struct mlx5_core_dev *mdev = priv->mdev;
129 struct mlx5e_vport_stats *s = &priv->stats.vport;
130 struct mlx5e_rq_stats *rq_stats;
131 struct mlx5e_sq_stats *sq_stats;
132 u32 in[MLX5_ST_SZ_DW(query_vport_counter_in)];
134 int outlen = MLX5_ST_SZ_BYTES(query_vport_counter_out);
138 out = mlx5_vzalloc(outlen);
142 /* Collect firts the SW counters and then HW for consistency */
145 s->tx_queue_stopped = 0;
146 s->tx_queue_wake = 0;
147 s->tx_queue_dropped = 0;
154 for (i = 0; i < priv->params.num_channels; i++) {
155 rq_stats = &priv->channel[i]->rq.stats;
157 s->lro_packets += rq_stats->lro_packets;
158 s->lro_bytes += rq_stats->lro_bytes;
159 s->rx_csum_none += rq_stats->csum_none;
160 s->rx_csum_sw += rq_stats->csum_sw;
161 s->rx_wqe_err += rq_stats->wqe_err;
163 for (j = 0; j < priv->params.num_tc; j++) {
164 sq_stats = &priv->channel[i]->sq[j].stats;
166 s->tso_packets += sq_stats->tso_packets;
167 s->tso_bytes += sq_stats->tso_bytes;
168 s->tx_queue_stopped += sq_stats->stopped;
169 s->tx_queue_wake += sq_stats->wake;
170 s->tx_queue_dropped += sq_stats->dropped;
171 tx_offload_none += sq_stats->csum_offload_none;
176 memset(in, 0, sizeof(in));
178 MLX5_SET(query_vport_counter_in, in, opcode,
179 MLX5_CMD_OP_QUERY_VPORT_COUNTER);
180 MLX5_SET(query_vport_counter_in, in, op_mod, 0);
181 MLX5_SET(query_vport_counter_in, in, other_vport, 0);
183 memset(out, 0, outlen);
185 if (mlx5_cmd_exec(mdev, in, sizeof(in), out, outlen))
188 #define MLX5_GET_CTR(p, x) \
189 MLX5_GET64(query_vport_counter_out, p, x)
191 s->rx_error_packets =
192 MLX5_GET_CTR(out, received_errors.packets);
194 MLX5_GET_CTR(out, received_errors.octets);
195 s->tx_error_packets =
196 MLX5_GET_CTR(out, transmit_errors.packets);
198 MLX5_GET_CTR(out, transmit_errors.octets);
200 s->rx_unicast_packets =
201 MLX5_GET_CTR(out, received_eth_unicast.packets);
202 s->rx_unicast_bytes =
203 MLX5_GET_CTR(out, received_eth_unicast.octets);
204 s->tx_unicast_packets =
205 MLX5_GET_CTR(out, transmitted_eth_unicast.packets);
206 s->tx_unicast_bytes =
207 MLX5_GET_CTR(out, transmitted_eth_unicast.octets);
209 s->rx_multicast_packets =
210 MLX5_GET_CTR(out, received_eth_multicast.packets);
211 s->rx_multicast_bytes =
212 MLX5_GET_CTR(out, received_eth_multicast.octets);
213 s->tx_multicast_packets =
214 MLX5_GET_CTR(out, transmitted_eth_multicast.packets);
215 s->tx_multicast_bytes =
216 MLX5_GET_CTR(out, transmitted_eth_multicast.octets);
218 s->rx_broadcast_packets =
219 MLX5_GET_CTR(out, received_eth_broadcast.packets);
220 s->rx_broadcast_bytes =
221 MLX5_GET_CTR(out, received_eth_broadcast.octets);
222 s->tx_broadcast_packets =
223 MLX5_GET_CTR(out, transmitted_eth_broadcast.packets);
224 s->tx_broadcast_bytes =
225 MLX5_GET_CTR(out, transmitted_eth_broadcast.octets);
228 s->rx_unicast_packets +
229 s->rx_multicast_packets +
230 s->rx_broadcast_packets;
232 s->rx_unicast_bytes +
233 s->rx_multicast_bytes +
234 s->rx_broadcast_bytes;
236 s->tx_unicast_packets +
237 s->tx_multicast_packets +
238 s->tx_broadcast_packets;
240 s->tx_unicast_bytes +
241 s->tx_multicast_bytes +
242 s->tx_broadcast_bytes;
244 /* Update calculated offload counters */
245 s->tx_csum_offload = s->tx_packets - tx_offload_none;
246 s->rx_csum_good = s->rx_packets - s->rx_csum_none -
249 mlx5e_update_pport_counters(priv);
254 static void mlx5e_update_stats_work(struct work_struct *work)
256 struct delayed_work *dwork = to_delayed_work(work);
257 struct mlx5e_priv *priv = container_of(dwork, struct mlx5e_priv,
259 mutex_lock(&priv->state_lock);
260 if (test_bit(MLX5E_STATE_OPENED, &priv->state)) {
261 mlx5e_update_stats(priv);
262 schedule_delayed_work(dwork,
264 MLX5E_UPDATE_STATS_INTERVAL));
266 mutex_unlock(&priv->state_lock);
269 static void __mlx5e_async_event(struct mlx5e_priv *priv,
270 enum mlx5_dev_event event)
273 case MLX5_DEV_EVENT_PORT_UP:
274 case MLX5_DEV_EVENT_PORT_DOWN:
275 schedule_work(&priv->update_carrier_work);
283 static void mlx5e_async_event(struct mlx5_core_dev *mdev, void *vpriv,
284 enum mlx5_dev_event event, unsigned long param)
286 struct mlx5e_priv *priv = vpriv;
288 spin_lock(&priv->async_events_spinlock);
289 if (test_bit(MLX5E_STATE_ASYNC_EVENTS_ENABLE, &priv->state))
290 __mlx5e_async_event(priv, event);
291 spin_unlock(&priv->async_events_spinlock);
294 static void mlx5e_enable_async_events(struct mlx5e_priv *priv)
296 set_bit(MLX5E_STATE_ASYNC_EVENTS_ENABLE, &priv->state);
299 static void mlx5e_disable_async_events(struct mlx5e_priv *priv)
301 spin_lock_irq(&priv->async_events_spinlock);
302 clear_bit(MLX5E_STATE_ASYNC_EVENTS_ENABLE, &priv->state);
303 spin_unlock_irq(&priv->async_events_spinlock);
306 #define MLX5E_HW2SW_MTU(hwmtu) (hwmtu - (ETH_HLEN + VLAN_HLEN + ETH_FCS_LEN))
307 #define MLX5E_SW2HW_MTU(swmtu) (swmtu + (ETH_HLEN + VLAN_HLEN + ETH_FCS_LEN))
309 static int mlx5e_create_rq(struct mlx5e_channel *c,
310 struct mlx5e_rq_param *param,
313 struct mlx5e_priv *priv = c->priv;
314 struct mlx5_core_dev *mdev = priv->mdev;
315 void *rqc = param->rqc;
316 void *rqc_wq = MLX5_ADDR_OF(rqc, rqc, wq);
321 param->wq.db_numa_node = cpu_to_node(c->cpu);
323 err = mlx5_wq_ll_create(mdev, ¶m->wq, rqc_wq, &rq->wq,
328 rq->wq.db = &rq->wq.db[MLX5_RCV_DBR];
330 wq_sz = mlx5_wq_ll_get_size(&rq->wq);
331 rq->skb = kzalloc_node(wq_sz * sizeof(*rq->skb), GFP_KERNEL,
332 cpu_to_node(c->cpu));
335 goto err_rq_wq_destroy;
338 rq->wqe_sz = (priv->params.lro_en) ? priv->params.lro_wqe_sz :
339 MLX5E_SW2HW_MTU(priv->netdev->mtu);
340 rq->wqe_sz = SKB_DATA_ALIGN(rq->wqe_sz + MLX5E_NET_IP_ALIGN);
342 for (i = 0; i < wq_sz; i++) {
343 struct mlx5e_rx_wqe *wqe = mlx5_wq_ll_get_wqe(&rq->wq, i);
344 u32 byte_count = rq->wqe_sz - MLX5E_NET_IP_ALIGN;
346 wqe->data.lkey = c->mkey_be;
347 wqe->data.byte_count =
348 cpu_to_be32(byte_count | MLX5_HW_START_PADDING);
352 rq->netdev = c->netdev;
360 mlx5_wq_destroy(&rq->wq_ctrl);
365 static void mlx5e_destroy_rq(struct mlx5e_rq *rq)
368 mlx5_wq_destroy(&rq->wq_ctrl);
371 static int mlx5e_enable_rq(struct mlx5e_rq *rq, struct mlx5e_rq_param *param)
373 struct mlx5e_priv *priv = rq->priv;
374 struct mlx5_core_dev *mdev = priv->mdev;
382 inlen = MLX5_ST_SZ_BYTES(create_rq_in) +
383 sizeof(u64) * rq->wq_ctrl.buf.npages;
384 in = mlx5_vzalloc(inlen);
388 rqc = MLX5_ADDR_OF(create_rq_in, in, ctx);
389 wq = MLX5_ADDR_OF(rqc, rqc, wq);
391 memcpy(rqc, param->rqc, sizeof(param->rqc));
393 MLX5_SET(rqc, rqc, cqn, rq->cq.mcq.cqn);
394 MLX5_SET(rqc, rqc, state, MLX5_RQC_STATE_RST);
395 MLX5_SET(rqc, rqc, flush_in_error_en, 1);
396 MLX5_SET(wq, wq, log_wq_pg_sz, rq->wq_ctrl.buf.page_shift -
397 MLX5_ADAPTER_PAGE_SHIFT);
398 MLX5_SET64(wq, wq, dbr_addr, rq->wq_ctrl.db.dma);
400 mlx5_fill_page_array(&rq->wq_ctrl.buf,
401 (__be64 *)MLX5_ADDR_OF(wq, wq, pas));
403 err = mlx5_core_create_rq(mdev, in, inlen, &rq->rqn);
410 static int mlx5e_modify_rq(struct mlx5e_rq *rq, int curr_state, int next_state)
412 struct mlx5e_channel *c = rq->channel;
413 struct mlx5e_priv *priv = c->priv;
414 struct mlx5_core_dev *mdev = priv->mdev;
421 inlen = MLX5_ST_SZ_BYTES(modify_rq_in);
422 in = mlx5_vzalloc(inlen);
426 rqc = MLX5_ADDR_OF(modify_rq_in, in, ctx);
428 MLX5_SET(modify_rq_in, in, rq_state, curr_state);
429 MLX5_SET(rqc, rqc, state, next_state);
431 err = mlx5_core_modify_rq(mdev, rq->rqn, in, inlen);
438 static void mlx5e_disable_rq(struct mlx5e_rq *rq)
440 mlx5_core_destroy_rq(rq->priv->mdev, rq->rqn);
443 static int mlx5e_wait_for_min_rx_wqes(struct mlx5e_rq *rq)
445 struct mlx5e_channel *c = rq->channel;
446 struct mlx5e_priv *priv = c->priv;
447 struct mlx5_wq_ll *wq = &rq->wq;
450 for (i = 0; i < 1000; i++) {
451 if (wq->cur_sz >= priv->params.min_rx_wqes)
460 static int mlx5e_open_rq(struct mlx5e_channel *c,
461 struct mlx5e_rq_param *param,
466 err = mlx5e_create_rq(c, param, rq);
470 err = mlx5e_enable_rq(rq, param);
474 err = mlx5e_modify_rq(rq, MLX5_RQC_STATE_RST, MLX5_RQC_STATE_RDY);
478 set_bit(MLX5E_RQ_STATE_POST_WQES_ENABLE, &rq->state);
479 mlx5e_send_nop(&c->sq[0], true); /* trigger mlx5e_post_rx_wqes() */
484 mlx5e_disable_rq(rq);
486 mlx5e_destroy_rq(rq);
491 static void mlx5e_close_rq(struct mlx5e_rq *rq)
493 clear_bit(MLX5E_RQ_STATE_POST_WQES_ENABLE, &rq->state);
494 napi_synchronize(&rq->channel->napi); /* prevent mlx5e_post_rx_wqes */
496 mlx5e_modify_rq(rq, MLX5_RQC_STATE_RDY, MLX5_RQC_STATE_ERR);
497 while (!mlx5_wq_ll_is_empty(&rq->wq))
500 /* avoid destroying rq before mlx5e_poll_rx_cq() is done with it */
501 napi_synchronize(&rq->channel->napi);
503 mlx5e_disable_rq(rq);
504 mlx5e_destroy_rq(rq);
507 static void mlx5e_free_sq_db(struct mlx5e_sq *sq)
513 static int mlx5e_alloc_sq_db(struct mlx5e_sq *sq, int numa)
515 int wq_sz = mlx5_wq_cyc_get_size(&sq->wq);
516 int df_sz = wq_sz * MLX5_SEND_WQEBB_NUM_DS;
518 sq->skb = kzalloc_node(wq_sz * sizeof(*sq->skb), GFP_KERNEL, numa);
519 sq->dma_fifo = kzalloc_node(df_sz * sizeof(*sq->dma_fifo), GFP_KERNEL,
522 if (!sq->skb || !sq->dma_fifo) {
523 mlx5e_free_sq_db(sq);
527 sq->dma_fifo_mask = df_sz - 1;
532 static int mlx5e_create_sq(struct mlx5e_channel *c,
534 struct mlx5e_sq_param *param,
537 struct mlx5e_priv *priv = c->priv;
538 struct mlx5_core_dev *mdev = priv->mdev;
540 void *sqc = param->sqc;
541 void *sqc_wq = MLX5_ADDR_OF(sqc, sqc, wq);
545 err = mlx5_alloc_map_uar(mdev, &sq->uar);
549 param->wq.db_numa_node = cpu_to_node(c->cpu);
551 err = mlx5_wq_cyc_create(mdev, ¶m->wq, sqc_wq, &sq->wq,
554 goto err_unmap_free_uar;
556 sq->wq.db = &sq->wq.db[MLX5_SND_DBR];
557 sq->uar_map = sq->uar.map;
558 sq->uar_bf_map = sq->uar.bf_map;
559 sq->bf_buf_size = (1 << MLX5_CAP_GEN(mdev, log_bf_reg_size)) / 2;
560 sq->max_inline = param->max_inline;
562 err = mlx5e_alloc_sq_db(sq, cpu_to_node(c->cpu));
564 goto err_sq_wq_destroy;
566 txq_ix = c->ix + tc * priv->params.num_channels;
567 sq->txq = netdev_get_tx_queue(priv->netdev, txq_ix);
570 sq->mkey_be = c->mkey_be;
573 sq->edge = (sq->wq.sz_m1 + 1) - MLX5_SEND_WQE_MAX_WQEBBS;
574 sq->bf_budget = MLX5E_SQ_BF_BUDGET;
575 priv->txq_to_sq_map[txq_ix] = sq;
580 mlx5_wq_destroy(&sq->wq_ctrl);
583 mlx5_unmap_free_uar(mdev, &sq->uar);
588 static void mlx5e_destroy_sq(struct mlx5e_sq *sq)
590 struct mlx5e_channel *c = sq->channel;
591 struct mlx5e_priv *priv = c->priv;
593 mlx5e_free_sq_db(sq);
594 mlx5_wq_destroy(&sq->wq_ctrl);
595 mlx5_unmap_free_uar(priv->mdev, &sq->uar);
598 static int mlx5e_enable_sq(struct mlx5e_sq *sq, struct mlx5e_sq_param *param)
600 struct mlx5e_channel *c = sq->channel;
601 struct mlx5e_priv *priv = c->priv;
602 struct mlx5_core_dev *mdev = priv->mdev;
610 inlen = MLX5_ST_SZ_BYTES(create_sq_in) +
611 sizeof(u64) * sq->wq_ctrl.buf.npages;
612 in = mlx5_vzalloc(inlen);
616 sqc = MLX5_ADDR_OF(create_sq_in, in, ctx);
617 wq = MLX5_ADDR_OF(sqc, sqc, wq);
619 memcpy(sqc, param->sqc, sizeof(param->sqc));
621 MLX5_SET(sqc, sqc, tis_num_0, priv->tisn[sq->tc]);
622 MLX5_SET(sqc, sqc, cqn, c->sq[sq->tc].cq.mcq.cqn);
623 MLX5_SET(sqc, sqc, state, MLX5_SQC_STATE_RST);
624 MLX5_SET(sqc, sqc, tis_lst_sz, 1);
625 MLX5_SET(sqc, sqc, flush_in_error_en, 1);
627 MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_CYCLIC);
628 MLX5_SET(wq, wq, uar_page, sq->uar.index);
629 MLX5_SET(wq, wq, log_wq_pg_sz, sq->wq_ctrl.buf.page_shift -
630 MLX5_ADAPTER_PAGE_SHIFT);
631 MLX5_SET64(wq, wq, dbr_addr, sq->wq_ctrl.db.dma);
633 mlx5_fill_page_array(&sq->wq_ctrl.buf,
634 (__be64 *)MLX5_ADDR_OF(wq, wq, pas));
636 err = mlx5_core_create_sq(mdev, in, inlen, &sq->sqn);
643 static int mlx5e_modify_sq(struct mlx5e_sq *sq, int curr_state, int next_state)
645 struct mlx5e_channel *c = sq->channel;
646 struct mlx5e_priv *priv = c->priv;
647 struct mlx5_core_dev *mdev = priv->mdev;
654 inlen = MLX5_ST_SZ_BYTES(modify_sq_in);
655 in = mlx5_vzalloc(inlen);
659 sqc = MLX5_ADDR_OF(modify_sq_in, in, ctx);
661 MLX5_SET(modify_sq_in, in, sq_state, curr_state);
662 MLX5_SET(sqc, sqc, state, next_state);
664 err = mlx5_core_modify_sq(mdev, sq->sqn, in, inlen);
671 static void mlx5e_disable_sq(struct mlx5e_sq *sq)
673 struct mlx5e_channel *c = sq->channel;
674 struct mlx5e_priv *priv = c->priv;
675 struct mlx5_core_dev *mdev = priv->mdev;
677 mlx5_core_destroy_sq(mdev, sq->sqn);
680 static int mlx5e_open_sq(struct mlx5e_channel *c,
682 struct mlx5e_sq_param *param,
687 err = mlx5e_create_sq(c, tc, param, sq);
691 err = mlx5e_enable_sq(sq, param);
695 err = mlx5e_modify_sq(sq, MLX5_SQC_STATE_RST, MLX5_SQC_STATE_RDY);
699 set_bit(MLX5E_SQ_STATE_WAKE_TXQ_ENABLE, &sq->state);
700 netdev_tx_reset_queue(sq->txq);
701 netif_tx_start_queue(sq->txq);
706 mlx5e_disable_sq(sq);
708 mlx5e_destroy_sq(sq);
713 static inline void netif_tx_disable_queue(struct netdev_queue *txq)
715 __netif_tx_lock_bh(txq);
716 netif_tx_stop_queue(txq);
717 __netif_tx_unlock_bh(txq);
720 static void mlx5e_close_sq(struct mlx5e_sq *sq)
722 clear_bit(MLX5E_SQ_STATE_WAKE_TXQ_ENABLE, &sq->state);
723 napi_synchronize(&sq->channel->napi); /* prevent netif_tx_wake_queue */
724 netif_tx_disable_queue(sq->txq);
726 /* ensure hw is notified of all pending wqes */
727 if (mlx5e_sq_has_room_for(sq, 1))
728 mlx5e_send_nop(sq, true);
730 mlx5e_modify_sq(sq, MLX5_SQC_STATE_RDY, MLX5_SQC_STATE_ERR);
731 while (sq->cc != sq->pc) /* wait till sq is empty */
734 /* avoid destroying sq before mlx5e_poll_tx_cq() is done with it */
735 napi_synchronize(&sq->channel->napi);
737 mlx5e_disable_sq(sq);
738 mlx5e_destroy_sq(sq);
741 static int mlx5e_create_cq(struct mlx5e_channel *c,
742 struct mlx5e_cq_param *param,
745 struct mlx5e_priv *priv = c->priv;
746 struct mlx5_core_dev *mdev = priv->mdev;
747 struct mlx5_core_cq *mcq = &cq->mcq;
753 param->wq.buf_numa_node = cpu_to_node(c->cpu);
754 param->wq.db_numa_node = cpu_to_node(c->cpu);
755 param->eq_ix = c->ix;
757 err = mlx5_cqwq_create(mdev, ¶m->wq, param->cqc, &cq->wq,
762 mlx5_vector2eqn(mdev, param->eq_ix, &eqn_not_used, &irqn);
767 mcq->set_ci_db = cq->wq_ctrl.db.db;
768 mcq->arm_db = cq->wq_ctrl.db.db + 1;
771 mcq->vector = param->eq_ix;
772 mcq->comp = mlx5e_completion_event;
773 mcq->event = mlx5e_cq_error_event;
775 mcq->uar = &priv->cq_uar;
777 for (i = 0; i < mlx5_cqwq_get_size(&cq->wq); i++) {
778 struct mlx5_cqe64 *cqe = mlx5_cqwq_get_wqe(&cq->wq, i);
789 static void mlx5e_destroy_cq(struct mlx5e_cq *cq)
791 mlx5_wq_destroy(&cq->wq_ctrl);
794 static int mlx5e_enable_cq(struct mlx5e_cq *cq, struct mlx5e_cq_param *param)
796 struct mlx5e_priv *priv = cq->priv;
797 struct mlx5_core_dev *mdev = priv->mdev;
798 struct mlx5_core_cq *mcq = &cq->mcq;
807 inlen = MLX5_ST_SZ_BYTES(create_cq_in) +
808 sizeof(u64) * cq->wq_ctrl.buf.npages;
809 in = mlx5_vzalloc(inlen);
813 cqc = MLX5_ADDR_OF(create_cq_in, in, cq_context);
815 memcpy(cqc, param->cqc, sizeof(param->cqc));
817 mlx5_fill_page_array(&cq->wq_ctrl.buf,
818 (__be64 *)MLX5_ADDR_OF(create_cq_in, in, pas));
820 mlx5_vector2eqn(mdev, param->eq_ix, &eqn, &irqn_not_used);
822 MLX5_SET(cqc, cqc, c_eqn, eqn);
823 MLX5_SET(cqc, cqc, uar_page, mcq->uar->index);
824 MLX5_SET(cqc, cqc, log_page_size, cq->wq_ctrl.buf.page_shift -
825 MLX5_ADAPTER_PAGE_SHIFT);
826 MLX5_SET64(cqc, cqc, dbr_addr, cq->wq_ctrl.db.dma);
828 err = mlx5_core_create_cq(mdev, mcq, in, inlen);
840 static void mlx5e_disable_cq(struct mlx5e_cq *cq)
842 struct mlx5e_priv *priv = cq->priv;
843 struct mlx5_core_dev *mdev = priv->mdev;
845 mlx5_core_destroy_cq(mdev, &cq->mcq);
848 static int mlx5e_open_cq(struct mlx5e_channel *c,
849 struct mlx5e_cq_param *param,
851 u16 moderation_usecs,
852 u16 moderation_frames)
855 struct mlx5e_priv *priv = c->priv;
856 struct mlx5_core_dev *mdev = priv->mdev;
858 err = mlx5e_create_cq(c, param, cq);
862 err = mlx5e_enable_cq(cq, param);
866 err = mlx5_core_modify_cq_moderation(mdev, &cq->mcq,
875 mlx5e_destroy_cq(cq);
880 static void mlx5e_close_cq(struct mlx5e_cq *cq)
882 mlx5e_disable_cq(cq);
883 mlx5e_destroy_cq(cq);
886 static int mlx5e_get_cpu(struct mlx5e_priv *priv, int ix)
888 return cpumask_first(priv->mdev->priv.irq_info[ix].mask);
891 static int mlx5e_open_tx_cqs(struct mlx5e_channel *c,
892 struct mlx5e_channel_param *cparam)
894 struct mlx5e_priv *priv = c->priv;
898 for (tc = 0; tc < c->num_tc; tc++) {
899 err = mlx5e_open_cq(c, &cparam->tx_cq, &c->sq[tc].cq,
900 priv->params.tx_cq_moderation_usec,
901 priv->params.tx_cq_moderation_pkts);
903 goto err_close_tx_cqs;
909 for (tc--; tc >= 0; tc--)
910 mlx5e_close_cq(&c->sq[tc].cq);
915 static void mlx5e_close_tx_cqs(struct mlx5e_channel *c)
919 for (tc = 0; tc < c->num_tc; tc++)
920 mlx5e_close_cq(&c->sq[tc].cq);
923 static int mlx5e_open_sqs(struct mlx5e_channel *c,
924 struct mlx5e_channel_param *cparam)
929 for (tc = 0; tc < c->num_tc; tc++) {
930 err = mlx5e_open_sq(c, tc, &cparam->sq, &c->sq[tc]);
938 for (tc--; tc >= 0; tc--)
939 mlx5e_close_sq(&c->sq[tc]);
944 static void mlx5e_close_sqs(struct mlx5e_channel *c)
948 for (tc = 0; tc < c->num_tc; tc++)
949 mlx5e_close_sq(&c->sq[tc]);
952 static void mlx5e_build_channeltc_to_txq_map(struct mlx5e_priv *priv, int ix)
956 for (i = 0; i < MLX5E_MAX_NUM_TC; i++)
957 priv->channeltc_to_txq_map[ix][i] =
958 ix + i * priv->params.num_channels;
961 static int mlx5e_open_channel(struct mlx5e_priv *priv, int ix,
962 struct mlx5e_channel_param *cparam,
963 struct mlx5e_channel **cp)
965 struct net_device *netdev = priv->netdev;
966 int cpu = mlx5e_get_cpu(priv, ix);
967 struct mlx5e_channel *c;
970 c = kzalloc_node(sizeof(*c), GFP_KERNEL, cpu_to_node(cpu));
977 c->pdev = &priv->mdev->pdev->dev;
978 c->netdev = priv->netdev;
979 c->mkey_be = cpu_to_be32(priv->mr.key);
980 c->num_tc = priv->params.num_tc;
982 mlx5e_build_channeltc_to_txq_map(priv, ix);
984 netif_napi_add(netdev, &c->napi, mlx5e_napi_poll, 64);
986 err = mlx5e_open_tx_cqs(c, cparam);
990 err = mlx5e_open_cq(c, &cparam->rx_cq, &c->rq.cq,
991 priv->params.rx_cq_moderation_usec,
992 priv->params.rx_cq_moderation_pkts);
994 goto err_close_tx_cqs;
996 napi_enable(&c->napi);
998 err = mlx5e_open_sqs(c, cparam);
1000 goto err_disable_napi;
1002 err = mlx5e_open_rq(c, &cparam->rq, &c->rq);
1006 netif_set_xps_queue(netdev, get_cpu_mask(c->cpu), ix);
1015 napi_disable(&c->napi);
1016 mlx5e_close_cq(&c->rq.cq);
1019 mlx5e_close_tx_cqs(c);
1022 netif_napi_del(&c->napi);
1028 static void mlx5e_close_channel(struct mlx5e_channel *c)
1030 mlx5e_close_rq(&c->rq);
1032 napi_disable(&c->napi);
1033 mlx5e_close_cq(&c->rq.cq);
1034 mlx5e_close_tx_cqs(c);
1035 netif_napi_del(&c->napi);
1039 static void mlx5e_build_rq_param(struct mlx5e_priv *priv,
1040 struct mlx5e_rq_param *param)
1042 void *rqc = param->rqc;
1043 void *wq = MLX5_ADDR_OF(rqc, rqc, wq);
1045 MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_LINKED_LIST);
1046 MLX5_SET(wq, wq, end_padding_mode, MLX5_WQ_END_PAD_MODE_ALIGN);
1047 MLX5_SET(wq, wq, log_wq_stride, ilog2(sizeof(struct mlx5e_rx_wqe)));
1048 MLX5_SET(wq, wq, log_wq_sz, priv->params.log_rq_size);
1049 MLX5_SET(wq, wq, pd, priv->pdn);
1051 param->wq.buf_numa_node = dev_to_node(&priv->mdev->pdev->dev);
1052 param->wq.linear = 1;
1055 static void mlx5e_build_sq_param(struct mlx5e_priv *priv,
1056 struct mlx5e_sq_param *param)
1058 void *sqc = param->sqc;
1059 void *wq = MLX5_ADDR_OF(sqc, sqc, wq);
1061 MLX5_SET(wq, wq, log_wq_sz, priv->params.log_sq_size);
1062 MLX5_SET(wq, wq, log_wq_stride, ilog2(MLX5_SEND_WQE_BB));
1063 MLX5_SET(wq, wq, pd, priv->pdn);
1065 param->wq.buf_numa_node = dev_to_node(&priv->mdev->pdev->dev);
1066 param->max_inline = priv->params.tx_max_inline;
1069 static void mlx5e_build_common_cq_param(struct mlx5e_priv *priv,
1070 struct mlx5e_cq_param *param)
1072 void *cqc = param->cqc;
1074 MLX5_SET(cqc, cqc, uar_page, priv->cq_uar.index);
1077 static void mlx5e_build_rx_cq_param(struct mlx5e_priv *priv,
1078 struct mlx5e_cq_param *param)
1080 void *cqc = param->cqc;
1082 MLX5_SET(cqc, cqc, log_cq_size, priv->params.log_rq_size);
1084 mlx5e_build_common_cq_param(priv, param);
1087 static void mlx5e_build_tx_cq_param(struct mlx5e_priv *priv,
1088 struct mlx5e_cq_param *param)
1090 void *cqc = param->cqc;
1092 MLX5_SET(cqc, cqc, log_cq_size, priv->params.log_sq_size);
1094 mlx5e_build_common_cq_param(priv, param);
1097 static void mlx5e_build_channel_param(struct mlx5e_priv *priv,
1098 struct mlx5e_channel_param *cparam)
1100 memset(cparam, 0, sizeof(*cparam));
1102 mlx5e_build_rq_param(priv, &cparam->rq);
1103 mlx5e_build_sq_param(priv, &cparam->sq);
1104 mlx5e_build_rx_cq_param(priv, &cparam->rx_cq);
1105 mlx5e_build_tx_cq_param(priv, &cparam->tx_cq);
1108 static int mlx5e_open_channels(struct mlx5e_priv *priv)
1110 struct mlx5e_channel_param cparam;
1111 int nch = priv->params.num_channels;
1116 priv->channel = kcalloc(nch, sizeof(struct mlx5e_channel *),
1119 priv->txq_to_sq_map = kcalloc(nch * priv->params.num_tc,
1120 sizeof(struct mlx5e_sq *), GFP_KERNEL);
1122 if (!priv->channel || !priv->txq_to_sq_map)
1123 goto err_free_txq_to_sq_map;
1125 mlx5e_build_channel_param(priv, &cparam);
1126 for (i = 0; i < nch; i++) {
1127 err = mlx5e_open_channel(priv, i, &cparam, &priv->channel[i]);
1129 goto err_close_channels;
1132 for (j = 0; j < nch; j++) {
1133 err = mlx5e_wait_for_min_rx_wqes(&priv->channel[j]->rq);
1135 goto err_close_channels;
1141 for (i--; i >= 0; i--)
1142 mlx5e_close_channel(priv->channel[i]);
1144 err_free_txq_to_sq_map:
1145 kfree(priv->txq_to_sq_map);
1146 kfree(priv->channel);
1151 static void mlx5e_close_channels(struct mlx5e_priv *priv)
1155 for (i = 0; i < priv->params.num_channels; i++)
1156 mlx5e_close_channel(priv->channel[i]);
1158 kfree(priv->txq_to_sq_map);
1159 kfree(priv->channel);
1162 static int mlx5e_rx_hash_fn(int hfunc)
1164 return (hfunc == ETH_RSS_HASH_TOP) ?
1165 MLX5_RX_HASH_FN_TOEPLITZ :
1166 MLX5_RX_HASH_FN_INVERTED_XOR8;
1169 static int mlx5e_bits_invert(unsigned long a, int size)
1174 for (i = 0; i < size; i++)
1175 inv |= (test_bit(size - i - 1, &a) ? 1 : 0) << i;
1180 static void mlx5e_fill_indir_rqt_rqns(struct mlx5e_priv *priv, void *rqtc)
1184 for (i = 0; i < MLX5E_INDIR_RQT_SIZE; i++) {
1187 if (priv->params.rss_hfunc == ETH_RSS_HASH_XOR)
1188 ix = mlx5e_bits_invert(i, MLX5E_LOG_INDIR_RQT_SIZE);
1190 ix = priv->params.indirection_rqt[ix];
1191 ix = ix % priv->params.num_channels;
1192 MLX5_SET(rqtc, rqtc, rq_num[i],
1193 test_bit(MLX5E_STATE_OPENED, &priv->state) ?
1194 priv->channel[ix]->rq.rqn :
1199 static void mlx5e_fill_rqt_rqns(struct mlx5e_priv *priv, void *rqtc,
1200 enum mlx5e_rqt_ix rqt_ix)
1204 case MLX5E_INDIRECTION_RQT:
1205 mlx5e_fill_indir_rqt_rqns(priv, rqtc);
1209 default: /* MLX5E_SINGLE_RQ_RQT */
1210 MLX5_SET(rqtc, rqtc, rq_num[0],
1211 test_bit(MLX5E_STATE_OPENED, &priv->state) ?
1212 priv->channel[0]->rq.rqn :
1219 static int mlx5e_create_rqt(struct mlx5e_priv *priv, enum mlx5e_rqt_ix rqt_ix)
1221 struct mlx5_core_dev *mdev = priv->mdev;
1228 sz = (rqt_ix == MLX5E_SINGLE_RQ_RQT) ? 1 : MLX5E_INDIR_RQT_SIZE;
1230 inlen = MLX5_ST_SZ_BYTES(create_rqt_in) + sizeof(u32) * sz;
1231 in = mlx5_vzalloc(inlen);
1235 rqtc = MLX5_ADDR_OF(create_rqt_in, in, rqt_context);
1237 MLX5_SET(rqtc, rqtc, rqt_actual_size, sz);
1238 MLX5_SET(rqtc, rqtc, rqt_max_size, sz);
1240 mlx5e_fill_rqt_rqns(priv, rqtc, rqt_ix);
1242 err = mlx5_core_create_rqt(mdev, in, inlen, &priv->rqtn[rqt_ix]);
1249 int mlx5e_redirect_rqt(struct mlx5e_priv *priv, enum mlx5e_rqt_ix rqt_ix)
1251 struct mlx5_core_dev *mdev = priv->mdev;
1258 sz = (rqt_ix == MLX5E_SINGLE_RQ_RQT) ? 1 : MLX5E_INDIR_RQT_SIZE;
1260 inlen = MLX5_ST_SZ_BYTES(modify_rqt_in) + sizeof(u32) * sz;
1261 in = mlx5_vzalloc(inlen);
1265 rqtc = MLX5_ADDR_OF(modify_rqt_in, in, ctx);
1267 MLX5_SET(rqtc, rqtc, rqt_actual_size, sz);
1269 mlx5e_fill_rqt_rqns(priv, rqtc, rqt_ix);
1271 MLX5_SET(modify_rqt_in, in, bitmask.rqn_list, 1);
1273 err = mlx5_core_modify_rqt(mdev, priv->rqtn[rqt_ix], in, inlen);
1280 static void mlx5e_destroy_rqt(struct mlx5e_priv *priv, enum mlx5e_rqt_ix rqt_ix)
1282 mlx5_core_destroy_rqt(priv->mdev, priv->rqtn[rqt_ix]);
1285 static void mlx5e_redirect_rqts(struct mlx5e_priv *priv)
1287 mlx5e_redirect_rqt(priv, MLX5E_INDIRECTION_RQT);
1288 mlx5e_redirect_rqt(priv, MLX5E_SINGLE_RQ_RQT);
1291 static void mlx5e_build_tir_ctx_lro(void *tirc, struct mlx5e_priv *priv)
1293 if (!priv->params.lro_en)
1296 #define ROUGH_MAX_L2_L3_HDR_SZ 256
1298 MLX5_SET(tirc, tirc, lro_enable_mask,
1299 MLX5_TIRC_LRO_ENABLE_MASK_IPV4_LRO |
1300 MLX5_TIRC_LRO_ENABLE_MASK_IPV6_LRO);
1301 MLX5_SET(tirc, tirc, lro_max_ip_payload_size,
1302 (priv->params.lro_wqe_sz -
1303 ROUGH_MAX_L2_L3_HDR_SZ) >> 8);
1304 MLX5_SET(tirc, tirc, lro_timeout_period_usecs,
1305 MLX5_CAP_ETH(priv->mdev,
1306 lro_timer_supported_periods[2]));
1309 static int mlx5e_modify_tir_lro(struct mlx5e_priv *priv, int tt)
1311 struct mlx5_core_dev *mdev = priv->mdev;
1318 inlen = MLX5_ST_SZ_BYTES(modify_tir_in);
1319 in = mlx5_vzalloc(inlen);
1323 MLX5_SET(modify_tir_in, in, bitmask.lro, 1);
1324 tirc = MLX5_ADDR_OF(modify_tir_in, in, ctx);
1326 mlx5e_build_tir_ctx_lro(tirc, priv);
1328 err = mlx5_core_modify_tir(mdev, priv->tirn[tt], in, inlen);
1335 static int mlx5e_set_dev_port_mtu(struct net_device *netdev)
1337 struct mlx5e_priv *priv = netdev_priv(netdev);
1338 struct mlx5_core_dev *mdev = priv->mdev;
1342 err = mlx5_set_port_mtu(mdev, MLX5E_SW2HW_MTU(netdev->mtu), 1);
1346 mlx5_query_port_oper_mtu(mdev, &hw_mtu, 1);
1348 if (MLX5E_HW2SW_MTU(hw_mtu) != netdev->mtu)
1349 netdev_warn(netdev, "%s: Port MTU %d is different than netdev mtu %d\n",
1350 __func__, MLX5E_HW2SW_MTU(hw_mtu), netdev->mtu);
1352 netdev->mtu = MLX5E_HW2SW_MTU(hw_mtu);
1356 int mlx5e_open_locked(struct net_device *netdev)
1358 struct mlx5e_priv *priv = netdev_priv(netdev);
1362 set_bit(MLX5E_STATE_OPENED, &priv->state);
1364 num_txqs = priv->params.num_channels * priv->params.num_tc;
1365 netif_set_real_num_tx_queues(netdev, num_txqs);
1366 netif_set_real_num_rx_queues(netdev, priv->params.num_channels);
1368 err = mlx5e_set_dev_port_mtu(netdev);
1372 err = mlx5e_open_channels(priv);
1374 netdev_err(netdev, "%s: mlx5e_open_channels failed, %d\n",
1379 mlx5e_update_carrier(priv);
1380 mlx5e_redirect_rqts(priv);
1382 schedule_delayed_work(&priv->update_stats_work, 0);
1387 static int mlx5e_open(struct net_device *netdev)
1389 struct mlx5e_priv *priv = netdev_priv(netdev);
1392 mutex_lock(&priv->state_lock);
1393 err = mlx5e_open_locked(netdev);
1394 mutex_unlock(&priv->state_lock);
1399 int mlx5e_close_locked(struct net_device *netdev)
1401 struct mlx5e_priv *priv = netdev_priv(netdev);
1403 clear_bit(MLX5E_STATE_OPENED, &priv->state);
1405 mlx5e_redirect_rqts(priv);
1406 netif_carrier_off(priv->netdev);
1407 mlx5e_close_channels(priv);
1412 static int mlx5e_close(struct net_device *netdev)
1414 struct mlx5e_priv *priv = netdev_priv(netdev);
1417 mutex_lock(&priv->state_lock);
1418 err = mlx5e_close_locked(netdev);
1419 mutex_unlock(&priv->state_lock);
1424 static int mlx5e_create_drop_rq(struct mlx5e_priv *priv,
1425 struct mlx5e_rq *rq,
1426 struct mlx5e_rq_param *param)
1428 struct mlx5_core_dev *mdev = priv->mdev;
1429 void *rqc = param->rqc;
1430 void *rqc_wq = MLX5_ADDR_OF(rqc, rqc, wq);
1433 param->wq.db_numa_node = param->wq.buf_numa_node;
1435 err = mlx5_wq_ll_create(mdev, ¶m->wq, rqc_wq, &rq->wq,
1445 static int mlx5e_create_drop_cq(struct mlx5e_priv *priv,
1446 struct mlx5e_cq *cq,
1447 struct mlx5e_cq_param *param)
1449 struct mlx5_core_dev *mdev = priv->mdev;
1450 struct mlx5_core_cq *mcq = &cq->mcq;
1455 err = mlx5_cqwq_create(mdev, ¶m->wq, param->cqc, &cq->wq,
1460 mlx5_vector2eqn(mdev, param->eq_ix, &eqn_not_used, &irqn);
1463 mcq->set_ci_db = cq->wq_ctrl.db.db;
1464 mcq->arm_db = cq->wq_ctrl.db.db + 1;
1465 *mcq->set_ci_db = 0;
1467 mcq->vector = param->eq_ix;
1468 mcq->comp = mlx5e_completion_event;
1469 mcq->event = mlx5e_cq_error_event;
1471 mcq->uar = &priv->cq_uar;
1478 static int mlx5e_open_drop_rq(struct mlx5e_priv *priv)
1480 struct mlx5e_cq_param cq_param;
1481 struct mlx5e_rq_param rq_param;
1482 struct mlx5e_rq *rq = &priv->drop_rq;
1483 struct mlx5e_cq *cq = &priv->drop_rq.cq;
1486 memset(&cq_param, 0, sizeof(cq_param));
1487 memset(&rq_param, 0, sizeof(rq_param));
1488 mlx5e_build_rx_cq_param(priv, &cq_param);
1489 mlx5e_build_rq_param(priv, &rq_param);
1491 err = mlx5e_create_drop_cq(priv, cq, &cq_param);
1495 err = mlx5e_enable_cq(cq, &cq_param);
1497 goto err_destroy_cq;
1499 err = mlx5e_create_drop_rq(priv, rq, &rq_param);
1501 goto err_disable_cq;
1503 err = mlx5e_enable_rq(rq, &rq_param);
1505 goto err_destroy_rq;
1510 mlx5e_destroy_rq(&priv->drop_rq);
1513 mlx5e_disable_cq(&priv->drop_rq.cq);
1516 mlx5e_destroy_cq(&priv->drop_rq.cq);
1521 static void mlx5e_close_drop_rq(struct mlx5e_priv *priv)
1523 mlx5e_disable_rq(&priv->drop_rq);
1524 mlx5e_destroy_rq(&priv->drop_rq);
1525 mlx5e_disable_cq(&priv->drop_rq.cq);
1526 mlx5e_destroy_cq(&priv->drop_rq.cq);
1529 static int mlx5e_create_tis(struct mlx5e_priv *priv, int tc)
1531 struct mlx5_core_dev *mdev = priv->mdev;
1532 u32 in[MLX5_ST_SZ_DW(create_tis_in)];
1533 void *tisc = MLX5_ADDR_OF(create_tis_in, in, ctx);
1535 memset(in, 0, sizeof(in));
1537 MLX5_SET(tisc, tisc, prio, tc);
1538 MLX5_SET(tisc, tisc, transport_domain, priv->tdn);
1540 return mlx5_core_create_tis(mdev, in, sizeof(in), &priv->tisn[tc]);
1543 static void mlx5e_destroy_tis(struct mlx5e_priv *priv, int tc)
1545 mlx5_core_destroy_tis(priv->mdev, priv->tisn[tc]);
1548 static int mlx5e_create_tises(struct mlx5e_priv *priv)
1553 for (tc = 0; tc < priv->params.num_tc; tc++) {
1554 err = mlx5e_create_tis(priv, tc);
1556 goto err_close_tises;
1562 for (tc--; tc >= 0; tc--)
1563 mlx5e_destroy_tis(priv, tc);
1568 static void mlx5e_destroy_tises(struct mlx5e_priv *priv)
1572 for (tc = 0; tc < priv->params.num_tc; tc++)
1573 mlx5e_destroy_tis(priv, tc);
1576 static void mlx5e_build_tir_ctx(struct mlx5e_priv *priv, u32 *tirc, int tt)
1578 void *hfso = MLX5_ADDR_OF(tirc, tirc, rx_hash_field_selector_outer);
1580 MLX5_SET(tirc, tirc, transport_domain, priv->tdn);
1582 #define MLX5_HASH_IP (MLX5_HASH_FIELD_SEL_SRC_IP |\
1583 MLX5_HASH_FIELD_SEL_DST_IP)
1585 #define MLX5_HASH_IP_L4PORTS (MLX5_HASH_FIELD_SEL_SRC_IP |\
1586 MLX5_HASH_FIELD_SEL_DST_IP |\
1587 MLX5_HASH_FIELD_SEL_L4_SPORT |\
1588 MLX5_HASH_FIELD_SEL_L4_DPORT)
1590 #define MLX5_HASH_IP_IPSEC_SPI (MLX5_HASH_FIELD_SEL_SRC_IP |\
1591 MLX5_HASH_FIELD_SEL_DST_IP |\
1592 MLX5_HASH_FIELD_SEL_IPSEC_SPI)
1594 mlx5e_build_tir_ctx_lro(tirc, priv);
1596 MLX5_SET(tirc, tirc, disp_type, MLX5_TIRC_DISP_TYPE_INDIRECT);
1600 MLX5_SET(tirc, tirc, indirect_table,
1601 priv->rqtn[MLX5E_SINGLE_RQ_RQT]);
1602 MLX5_SET(tirc, tirc, rx_hash_fn, MLX5_RX_HASH_FN_INVERTED_XOR8);
1605 MLX5_SET(tirc, tirc, indirect_table,
1606 priv->rqtn[MLX5E_INDIRECTION_RQT]);
1607 MLX5_SET(tirc, tirc, rx_hash_fn,
1608 mlx5e_rx_hash_fn(priv->params.rss_hfunc));
1609 if (priv->params.rss_hfunc == ETH_RSS_HASH_TOP) {
1610 void *rss_key = MLX5_ADDR_OF(tirc, tirc,
1611 rx_hash_toeplitz_key);
1612 size_t len = MLX5_FLD_SZ_BYTES(tirc,
1613 rx_hash_toeplitz_key);
1615 MLX5_SET(tirc, tirc, rx_hash_symmetric, 1);
1616 memcpy(rss_key, priv->params.toeplitz_hash_key, len);
1622 case MLX5E_TT_IPV4_TCP:
1623 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
1624 MLX5_L3_PROT_TYPE_IPV4);
1625 MLX5_SET(rx_hash_field_select, hfso, l4_prot_type,
1626 MLX5_L4_PROT_TYPE_TCP);
1627 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
1628 MLX5_HASH_IP_L4PORTS);
1631 case MLX5E_TT_IPV6_TCP:
1632 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
1633 MLX5_L3_PROT_TYPE_IPV6);
1634 MLX5_SET(rx_hash_field_select, hfso, l4_prot_type,
1635 MLX5_L4_PROT_TYPE_TCP);
1636 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
1637 MLX5_HASH_IP_L4PORTS);
1640 case MLX5E_TT_IPV4_UDP:
1641 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
1642 MLX5_L3_PROT_TYPE_IPV4);
1643 MLX5_SET(rx_hash_field_select, hfso, l4_prot_type,
1644 MLX5_L4_PROT_TYPE_UDP);
1645 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
1646 MLX5_HASH_IP_L4PORTS);
1649 case MLX5E_TT_IPV6_UDP:
1650 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
1651 MLX5_L3_PROT_TYPE_IPV6);
1652 MLX5_SET(rx_hash_field_select, hfso, l4_prot_type,
1653 MLX5_L4_PROT_TYPE_UDP);
1654 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
1655 MLX5_HASH_IP_L4PORTS);
1658 case MLX5E_TT_IPV4_IPSEC_AH:
1659 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
1660 MLX5_L3_PROT_TYPE_IPV4);
1661 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
1662 MLX5_HASH_IP_IPSEC_SPI);
1665 case MLX5E_TT_IPV6_IPSEC_AH:
1666 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
1667 MLX5_L3_PROT_TYPE_IPV6);
1668 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
1669 MLX5_HASH_IP_IPSEC_SPI);
1672 case MLX5E_TT_IPV4_IPSEC_ESP:
1673 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
1674 MLX5_L3_PROT_TYPE_IPV4);
1675 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
1676 MLX5_HASH_IP_IPSEC_SPI);
1679 case MLX5E_TT_IPV6_IPSEC_ESP:
1680 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
1681 MLX5_L3_PROT_TYPE_IPV6);
1682 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
1683 MLX5_HASH_IP_IPSEC_SPI);
1687 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
1688 MLX5_L3_PROT_TYPE_IPV4);
1689 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
1694 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
1695 MLX5_L3_PROT_TYPE_IPV6);
1696 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
1702 static int mlx5e_create_tir(struct mlx5e_priv *priv, int tt)
1704 struct mlx5_core_dev *mdev = priv->mdev;
1710 inlen = MLX5_ST_SZ_BYTES(create_tir_in);
1711 in = mlx5_vzalloc(inlen);
1715 tirc = MLX5_ADDR_OF(create_tir_in, in, ctx);
1717 mlx5e_build_tir_ctx(priv, tirc, tt);
1719 err = mlx5_core_create_tir(mdev, in, inlen, &priv->tirn[tt]);
1726 static void mlx5e_destroy_tir(struct mlx5e_priv *priv, int tt)
1728 mlx5_core_destroy_tir(priv->mdev, priv->tirn[tt]);
1731 static int mlx5e_create_tirs(struct mlx5e_priv *priv)
1736 for (i = 0; i < MLX5E_NUM_TT; i++) {
1737 err = mlx5e_create_tir(priv, i);
1739 goto err_destroy_tirs;
1745 for (i--; i >= 0; i--)
1746 mlx5e_destroy_tir(priv, i);
1751 static void mlx5e_destroy_tirs(struct mlx5e_priv *priv)
1755 for (i = 0; i < MLX5E_NUM_TT; i++)
1756 mlx5e_destroy_tir(priv, i);
1759 static struct rtnl_link_stats64 *
1760 mlx5e_get_stats(struct net_device *dev, struct rtnl_link_stats64 *stats)
1762 struct mlx5e_priv *priv = netdev_priv(dev);
1763 struct mlx5e_vport_stats *vstats = &priv->stats.vport;
1765 stats->rx_packets = vstats->rx_packets;
1766 stats->rx_bytes = vstats->rx_bytes;
1767 stats->tx_packets = vstats->tx_packets;
1768 stats->tx_bytes = vstats->tx_bytes;
1769 stats->multicast = vstats->rx_multicast_packets +
1770 vstats->tx_multicast_packets;
1771 stats->tx_errors = vstats->tx_error_packets;
1772 stats->rx_errors = vstats->rx_error_packets;
1773 stats->tx_dropped = vstats->tx_queue_dropped;
1774 stats->rx_crc_errors = 0;
1775 stats->rx_length_errors = 0;
1780 static void mlx5e_set_rx_mode(struct net_device *dev)
1782 struct mlx5e_priv *priv = netdev_priv(dev);
1784 schedule_work(&priv->set_rx_mode_work);
1787 static int mlx5e_set_mac(struct net_device *netdev, void *addr)
1789 struct mlx5e_priv *priv = netdev_priv(netdev);
1790 struct sockaddr *saddr = addr;
1792 if (!is_valid_ether_addr(saddr->sa_data))
1793 return -EADDRNOTAVAIL;
1795 netif_addr_lock_bh(netdev);
1796 ether_addr_copy(netdev->dev_addr, saddr->sa_data);
1797 netif_addr_unlock_bh(netdev);
1799 schedule_work(&priv->set_rx_mode_work);
1804 static int mlx5e_set_features(struct net_device *netdev,
1805 netdev_features_t features)
1807 struct mlx5e_priv *priv = netdev_priv(netdev);
1809 netdev_features_t changes = features ^ netdev->features;
1811 mutex_lock(&priv->state_lock);
1813 if (changes & NETIF_F_LRO) {
1814 bool was_opened = test_bit(MLX5E_STATE_OPENED, &priv->state);
1817 mlx5e_close_locked(priv->netdev);
1819 priv->params.lro_en = !!(features & NETIF_F_LRO);
1820 mlx5e_modify_tir_lro(priv, MLX5E_TT_IPV4_TCP);
1821 mlx5e_modify_tir_lro(priv, MLX5E_TT_IPV6_TCP);
1824 err = mlx5e_open_locked(priv->netdev);
1827 mutex_unlock(&priv->state_lock);
1829 if (changes & NETIF_F_HW_VLAN_CTAG_FILTER) {
1830 if (features & NETIF_F_HW_VLAN_CTAG_FILTER)
1831 mlx5e_enable_vlan_filter(priv);
1833 mlx5e_disable_vlan_filter(priv);
1839 static int mlx5e_change_mtu(struct net_device *netdev, int new_mtu)
1841 struct mlx5e_priv *priv = netdev_priv(netdev);
1842 struct mlx5_core_dev *mdev = priv->mdev;
1847 mlx5_query_port_max_mtu(mdev, &max_mtu, 1);
1849 if (new_mtu > max_mtu) {
1851 "%s: Bad MTU (%d) > (%d) Max\n",
1852 __func__, new_mtu, max_mtu);
1856 mutex_lock(&priv->state_lock);
1858 was_opened = test_bit(MLX5E_STATE_OPENED, &priv->state);
1860 mlx5e_close_locked(netdev);
1862 netdev->mtu = new_mtu;
1865 err = mlx5e_open_locked(netdev);
1867 mutex_unlock(&priv->state_lock);
1872 static struct net_device_ops mlx5e_netdev_ops = {
1873 .ndo_open = mlx5e_open,
1874 .ndo_stop = mlx5e_close,
1875 .ndo_start_xmit = mlx5e_xmit,
1876 .ndo_get_stats64 = mlx5e_get_stats,
1877 .ndo_set_rx_mode = mlx5e_set_rx_mode,
1878 .ndo_set_mac_address = mlx5e_set_mac,
1879 .ndo_vlan_rx_add_vid = mlx5e_vlan_rx_add_vid,
1880 .ndo_vlan_rx_kill_vid = mlx5e_vlan_rx_kill_vid,
1881 .ndo_set_features = mlx5e_set_features,
1882 .ndo_change_mtu = mlx5e_change_mtu,
1885 static int mlx5e_check_required_hca_cap(struct mlx5_core_dev *mdev)
1887 if (MLX5_CAP_GEN(mdev, port_type) != MLX5_CAP_PORT_TYPE_ETH)
1889 if (!MLX5_CAP_GEN(mdev, eth_net_offloads) ||
1890 !MLX5_CAP_GEN(mdev, nic_flow_table) ||
1891 !MLX5_CAP_ETH(mdev, csum_cap) ||
1892 !MLX5_CAP_ETH(mdev, max_lso_cap) ||
1893 !MLX5_CAP_ETH(mdev, vlan_cap) ||
1894 !MLX5_CAP_ETH(mdev, rss_ind_tbl_cap) ||
1895 MLX5_CAP_FLOWTABLE(mdev,
1896 flow_table_properties_nic_receive.max_ft_level)
1898 mlx5_core_warn(mdev,
1899 "Not creating net device, some required device capabilities are missing\n");
1905 u16 mlx5e_get_max_inline_cap(struct mlx5_core_dev *mdev)
1907 int bf_buf_size = (1 << MLX5_CAP_GEN(mdev, log_bf_reg_size)) / 2;
1909 return bf_buf_size -
1910 sizeof(struct mlx5e_tx_wqe) +
1911 2 /*sizeof(mlx5e_tx_wqe.inline_hdr_start)*/;
1914 static void mlx5e_build_netdev_priv(struct mlx5_core_dev *mdev,
1915 struct net_device *netdev,
1918 struct mlx5e_priv *priv = netdev_priv(netdev);
1921 priv->params.log_sq_size =
1922 MLX5E_PARAMS_DEFAULT_LOG_SQ_SIZE;
1923 priv->params.log_rq_size =
1924 MLX5E_PARAMS_DEFAULT_LOG_RQ_SIZE;
1925 priv->params.rx_cq_moderation_usec =
1926 MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_USEC;
1927 priv->params.rx_cq_moderation_pkts =
1928 MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_PKTS;
1929 priv->params.tx_cq_moderation_usec =
1930 MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_USEC;
1931 priv->params.tx_cq_moderation_pkts =
1932 MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_PKTS;
1933 priv->params.tx_max_inline = mlx5e_get_max_inline_cap(mdev);
1934 priv->params.min_rx_wqes =
1935 MLX5E_PARAMS_DEFAULT_MIN_RX_WQES;
1936 priv->params.num_tc = 1;
1937 priv->params.default_vlan_prio = 0;
1938 priv->params.rss_hfunc = ETH_RSS_HASH_XOR;
1940 netdev_rss_key_fill(priv->params.toeplitz_hash_key,
1941 sizeof(priv->params.toeplitz_hash_key));
1943 for (i = 0; i < MLX5E_INDIR_RQT_SIZE; i++)
1944 priv->params.indirection_rqt[i] = i % num_channels;
1946 priv->params.lro_wqe_sz =
1947 MLX5E_PARAMS_DEFAULT_LRO_WQE_SZ;
1950 priv->netdev = netdev;
1951 priv->params.num_channels = num_channels;
1952 priv->default_vlan_prio = priv->params.default_vlan_prio;
1954 spin_lock_init(&priv->async_events_spinlock);
1955 mutex_init(&priv->state_lock);
1957 INIT_WORK(&priv->update_carrier_work, mlx5e_update_carrier_work);
1958 INIT_WORK(&priv->set_rx_mode_work, mlx5e_set_rx_mode_work);
1959 INIT_DELAYED_WORK(&priv->update_stats_work, mlx5e_update_stats_work);
1962 static void mlx5e_set_netdev_dev_addr(struct net_device *netdev)
1964 struct mlx5e_priv *priv = netdev_priv(netdev);
1966 mlx5_query_nic_vport_mac_address(priv->mdev, netdev->dev_addr);
1969 static void mlx5e_build_netdev(struct net_device *netdev)
1971 struct mlx5e_priv *priv = netdev_priv(netdev);
1972 struct mlx5_core_dev *mdev = priv->mdev;
1974 SET_NETDEV_DEV(netdev, &mdev->pdev->dev);
1976 if (priv->params.num_tc > 1)
1977 mlx5e_netdev_ops.ndo_select_queue = mlx5e_select_queue;
1979 netdev->netdev_ops = &mlx5e_netdev_ops;
1980 netdev->watchdog_timeo = 15 * HZ;
1982 netdev->ethtool_ops = &mlx5e_ethtool_ops;
1984 netdev->vlan_features |= NETIF_F_SG;
1985 netdev->vlan_features |= NETIF_F_IP_CSUM;
1986 netdev->vlan_features |= NETIF_F_IPV6_CSUM;
1987 netdev->vlan_features |= NETIF_F_GRO;
1988 netdev->vlan_features |= NETIF_F_TSO;
1989 netdev->vlan_features |= NETIF_F_TSO6;
1990 netdev->vlan_features |= NETIF_F_RXCSUM;
1991 netdev->vlan_features |= NETIF_F_RXHASH;
1993 if (!!MLX5_CAP_ETH(mdev, lro_cap))
1994 netdev->vlan_features |= NETIF_F_LRO;
1996 netdev->hw_features = netdev->vlan_features;
1997 netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_RX;
1998 netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_FILTER;
2000 netdev->features = netdev->hw_features;
2001 if (!priv->params.lro_en)
2002 netdev->features &= ~NETIF_F_LRO;
2004 netdev->features |= NETIF_F_HIGHDMA;
2006 netdev->priv_flags |= IFF_UNICAST_FLT;
2008 mlx5e_set_netdev_dev_addr(netdev);
2011 static int mlx5e_create_mkey(struct mlx5e_priv *priv, u32 pdn,
2012 struct mlx5_core_mr *mr)
2014 struct mlx5_core_dev *mdev = priv->mdev;
2015 struct mlx5_create_mkey_mbox_in *in;
2018 in = mlx5_vzalloc(sizeof(*in));
2022 in->seg.flags = MLX5_PERM_LOCAL_WRITE |
2023 MLX5_PERM_LOCAL_READ |
2024 MLX5_ACCESS_MODE_PA;
2025 in->seg.flags_pd = cpu_to_be32(pdn | MLX5_MKEY_LEN64);
2026 in->seg.qpn_mkey7_0 = cpu_to_be32(0xffffff << 8);
2028 err = mlx5_core_create_mkey(mdev, mr, in, sizeof(*in), NULL, NULL,
2036 static void *mlx5e_create_netdev(struct mlx5_core_dev *mdev)
2038 struct net_device *netdev;
2039 struct mlx5e_priv *priv;
2040 int nch = min_t(int, mdev->priv.eq_table.num_comp_vectors,
2041 MLX5E_MAX_NUM_CHANNELS);
2044 if (mlx5e_check_required_hca_cap(mdev))
2047 netdev = alloc_etherdev_mqs(sizeof(struct mlx5e_priv), nch, nch);
2049 mlx5_core_err(mdev, "alloc_etherdev_mqs() failed\n");
2053 mlx5e_build_netdev_priv(mdev, netdev, nch);
2054 mlx5e_build_netdev(netdev);
2056 netif_carrier_off(netdev);
2058 priv = netdev_priv(netdev);
2060 err = mlx5_alloc_map_uar(mdev, &priv->cq_uar);
2062 mlx5_core_err(mdev, "alloc_map uar failed, %d\n", err);
2063 goto err_free_netdev;
2066 err = mlx5_core_alloc_pd(mdev, &priv->pdn);
2068 mlx5_core_err(mdev, "alloc pd failed, %d\n", err);
2069 goto err_unmap_free_uar;
2072 err = mlx5_alloc_transport_domain(mdev, &priv->tdn);
2074 mlx5_core_err(mdev, "alloc td failed, %d\n", err);
2075 goto err_dealloc_pd;
2078 err = mlx5e_create_mkey(priv, priv->pdn, &priv->mr);
2080 mlx5_core_err(mdev, "create mkey failed, %d\n", err);
2081 goto err_dealloc_transport_domain;
2084 err = mlx5e_create_tises(priv);
2086 mlx5_core_warn(mdev, "create tises failed, %d\n", err);
2087 goto err_destroy_mkey;
2090 err = mlx5e_open_drop_rq(priv);
2092 mlx5_core_err(mdev, "open drop rq failed, %d\n", err);
2093 goto err_destroy_tises;
2096 err = mlx5e_create_rqt(priv, MLX5E_INDIRECTION_RQT);
2098 mlx5_core_warn(mdev, "create rqt(INDIR) failed, %d\n", err);
2099 goto err_close_drop_rq;
2102 err = mlx5e_create_rqt(priv, MLX5E_SINGLE_RQ_RQT);
2104 mlx5_core_warn(mdev, "create rqt(SINGLE) failed, %d\n", err);
2105 goto err_destroy_rqt_indir;
2108 err = mlx5e_create_tirs(priv);
2110 mlx5_core_warn(mdev, "create tirs failed, %d\n", err);
2111 goto err_destroy_rqt_single;
2114 err = mlx5e_create_flow_tables(priv);
2116 mlx5_core_warn(mdev, "create flow tables failed, %d\n", err);
2117 goto err_destroy_tirs;
2120 mlx5e_init_eth_addr(priv);
2122 err = register_netdev(netdev);
2124 mlx5_core_err(mdev, "register_netdev failed, %d\n", err);
2125 goto err_destroy_flow_tables;
2128 mlx5e_enable_async_events(priv);
2129 schedule_work(&priv->set_rx_mode_work);
2133 err_destroy_flow_tables:
2134 mlx5e_destroy_flow_tables(priv);
2137 mlx5e_destroy_tirs(priv);
2139 err_destroy_rqt_single:
2140 mlx5e_destroy_rqt(priv, MLX5E_SINGLE_RQ_RQT);
2142 err_destroy_rqt_indir:
2143 mlx5e_destroy_rqt(priv, MLX5E_INDIRECTION_RQT);
2146 mlx5e_close_drop_rq(priv);
2149 mlx5e_destroy_tises(priv);
2152 mlx5_core_destroy_mkey(mdev, &priv->mr);
2154 err_dealloc_transport_domain:
2155 mlx5_dealloc_transport_domain(mdev, priv->tdn);
2158 mlx5_core_dealloc_pd(mdev, priv->pdn);
2161 mlx5_unmap_free_uar(mdev, &priv->cq_uar);
2164 free_netdev(netdev);
2169 static void mlx5e_destroy_netdev(struct mlx5_core_dev *mdev, void *vpriv)
2171 struct mlx5e_priv *priv = vpriv;
2172 struct net_device *netdev = priv->netdev;
2174 set_bit(MLX5E_STATE_DESTROYING, &priv->state);
2176 schedule_work(&priv->set_rx_mode_work);
2177 mlx5e_disable_async_events(priv);
2178 flush_scheduled_work();
2179 unregister_netdev(netdev);
2180 mlx5e_destroy_flow_tables(priv);
2181 mlx5e_destroy_tirs(priv);
2182 mlx5e_destroy_rqt(priv, MLX5E_SINGLE_RQ_RQT);
2183 mlx5e_destroy_rqt(priv, MLX5E_INDIRECTION_RQT);
2184 mlx5e_close_drop_rq(priv);
2185 mlx5e_destroy_tises(priv);
2186 mlx5_core_destroy_mkey(priv->mdev, &priv->mr);
2187 mlx5_dealloc_transport_domain(priv->mdev, priv->tdn);
2188 mlx5_core_dealloc_pd(priv->mdev, priv->pdn);
2189 mlx5_unmap_free_uar(priv->mdev, &priv->cq_uar);
2190 free_netdev(netdev);
2193 static void *mlx5e_get_netdev(void *vpriv)
2195 struct mlx5e_priv *priv = vpriv;
2197 return priv->netdev;
2200 static struct mlx5_interface mlx5e_interface = {
2201 .add = mlx5e_create_netdev,
2202 .remove = mlx5e_destroy_netdev,
2203 .event = mlx5e_async_event,
2204 .protocol = MLX5_INTERFACE_PROTOCOL_ETH,
2205 .get_dev = mlx5e_get_netdev,
2208 void mlx5e_init(void)
2210 mlx5_register_interface(&mlx5e_interface);
2213 void mlx5e_cleanup(void)
2215 mlx5_unregister_interface(&mlx5e_interface);