Amir Vadai | f62b8bb8 | 2015-05-28 22:28:48 +0300 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2015, Mellanox Technologies. All rights reserved. |
| 3 | * |
| 4 | * This software is available to you under a choice of one of two |
| 5 | * licenses. You may choose to be licensed under the terms of the GNU |
| 6 | * General Public License (GPL) Version 2, available from the file |
| 7 | * COPYING in the main directory of this source tree, or the |
| 8 | * OpenIB.org BSD license below: |
| 9 | * |
| 10 | * Redistribution and use in source and binary forms, with or |
| 11 | * without modification, are permitted provided that the following |
| 12 | * conditions are met: |
| 13 | * |
| 14 | * - Redistributions of source code must retain the above |
| 15 | * copyright notice, this list of conditions and the following |
| 16 | * disclaimer. |
| 17 | * |
| 18 | * - Redistributions in binary form must reproduce the above |
| 19 | * copyright notice, this list of conditions and the following |
| 20 | * disclaimer in the documentation and/or other materials |
| 21 | * provided with the distribution. |
| 22 | * |
| 23 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| 24 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| 25 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| 26 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
| 27 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
| 28 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| 29 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 30 | * SOFTWARE. |
| 31 | */ |
| 32 | |
| 33 | #include <linux/mlx5/flow_table.h> |
| 34 | #include "en.h" |
| 35 | |
| 36 | struct mlx5e_rq_param { |
| 37 | u32 rqc[MLX5_ST_SZ_DW(rqc)]; |
| 38 | struct mlx5_wq_param wq; |
| 39 | }; |
| 40 | |
| 41 | struct mlx5e_sq_param { |
| 42 | u32 sqc[MLX5_ST_SZ_DW(sqc)]; |
| 43 | struct mlx5_wq_param wq; |
| 44 | }; |
| 45 | |
| 46 | struct mlx5e_cq_param { |
| 47 | u32 cqc[MLX5_ST_SZ_DW(cqc)]; |
| 48 | struct mlx5_wq_param wq; |
| 49 | u16 eq_ix; |
| 50 | }; |
| 51 | |
| 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; |
| 57 | }; |
| 58 | |
| 59 | static void mlx5e_update_carrier(struct mlx5e_priv *priv) |
| 60 | { |
| 61 | struct mlx5_core_dev *mdev = priv->mdev; |
| 62 | u8 port_state; |
| 63 | |
| 64 | port_state = mlx5_query_vport_state(mdev, |
| 65 | MLX5_QUERY_VPORT_STATE_IN_OP_MOD_VNIC_VPORT); |
| 66 | |
| 67 | if (port_state == VPORT_STATE_UP) |
| 68 | netif_carrier_on(priv->netdev); |
| 69 | else |
| 70 | netif_carrier_off(priv->netdev); |
| 71 | } |
| 72 | |
| 73 | static void mlx5e_update_carrier_work(struct work_struct *work) |
| 74 | { |
| 75 | struct mlx5e_priv *priv = container_of(work, struct mlx5e_priv, |
| 76 | update_carrier_work); |
| 77 | |
| 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); |
| 82 | } |
| 83 | |
| 84 | void mlx5e_update_stats(struct mlx5e_priv *priv) |
| 85 | { |
| 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)]; |
| 91 | u32 *out; |
| 92 | int outlen = MLX5_ST_SZ_BYTES(query_vport_counter_out); |
| 93 | u64 tx_offload_none; |
| 94 | int i, j; |
| 95 | |
| 96 | out = mlx5_vzalloc(outlen); |
| 97 | if (!out) |
| 98 | return; |
| 99 | |
| 100 | /* Collect firts the SW counters and then HW for consistency */ |
| 101 | s->tso_packets = 0; |
| 102 | s->tso_bytes = 0; |
| 103 | s->tx_queue_stopped = 0; |
| 104 | s->tx_queue_wake = 0; |
| 105 | s->tx_queue_dropped = 0; |
| 106 | tx_offload_none = 0; |
| 107 | s->lro_packets = 0; |
| 108 | s->lro_bytes = 0; |
| 109 | s->rx_csum_none = 0; |
| 110 | s->rx_wqe_err = 0; |
| 111 | for (i = 0; i < priv->params.num_channels; i++) { |
| 112 | rq_stats = &priv->channel[i]->rq.stats; |
| 113 | |
| 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; |
| 118 | |
| 119 | for (j = 0; j < priv->num_tc; j++) { |
| 120 | sq_stats = &priv->channel[i]->sq[j].stats; |
| 121 | |
| 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; |
| 128 | } |
| 129 | } |
| 130 | |
| 131 | /* HW counters */ |
| 132 | memset(in, 0, sizeof(in)); |
| 133 | |
| 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); |
| 138 | |
| 139 | memset(out, 0, outlen); |
| 140 | |
| 141 | if (mlx5_cmd_exec(mdev, in, sizeof(in), out, outlen)) |
| 142 | goto free_out; |
| 143 | |
| 144 | #define MLX5_GET_CTR(p, x) \ |
| 145 | MLX5_GET64(query_vport_counter_out, p, x) |
| 146 | |
| 147 | s->rx_error_packets = |
| 148 | MLX5_GET_CTR(out, received_errors.packets); |
| 149 | s->rx_error_bytes = |
| 150 | MLX5_GET_CTR(out, received_errors.octets); |
| 151 | s->tx_error_packets = |
| 152 | MLX5_GET_CTR(out, transmit_errors.packets); |
| 153 | s->tx_error_bytes = |
| 154 | MLX5_GET_CTR(out, transmit_errors.octets); |
| 155 | |
| 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); |
| 164 | |
| 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); |
| 173 | |
| 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); |
| 182 | |
| 183 | s->rx_packets = |
| 184 | s->rx_unicast_packets + |
| 185 | s->rx_multicast_packets + |
| 186 | s->rx_broadcast_packets; |
| 187 | s->rx_bytes = |
| 188 | s->rx_unicast_bytes + |
| 189 | s->rx_multicast_bytes + |
| 190 | s->rx_broadcast_bytes; |
| 191 | s->tx_packets = |
| 192 | s->tx_unicast_packets + |
| 193 | s->tx_multicast_packets + |
| 194 | s->tx_broadcast_packets; |
| 195 | s->tx_bytes = |
| 196 | s->tx_unicast_bytes + |
| 197 | s->tx_multicast_bytes + |
| 198 | s->tx_broadcast_bytes; |
| 199 | |
| 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; |
| 203 | |
| 204 | free_out: |
| 205 | kvfree(out); |
| 206 | } |
| 207 | |
| 208 | static void mlx5e_update_stats_work(struct work_struct *work) |
| 209 | { |
| 210 | struct delayed_work *dwork = to_delayed_work(work); |
| 211 | struct mlx5e_priv *priv = container_of(dwork, struct mlx5e_priv, |
| 212 | update_stats_work); |
| 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, |
| 217 | msecs_to_jiffies( |
| 218 | MLX5E_UPDATE_STATS_INTERVAL)); |
| 219 | } |
| 220 | mutex_unlock(&priv->state_lock); |
| 221 | } |
| 222 | |
| 223 | static void __mlx5e_async_event(struct mlx5e_priv *priv, |
| 224 | enum mlx5_dev_event event) |
| 225 | { |
| 226 | switch (event) { |
| 227 | case MLX5_DEV_EVENT_PORT_UP: |
| 228 | case MLX5_DEV_EVENT_PORT_DOWN: |
| 229 | schedule_work(&priv->update_carrier_work); |
| 230 | break; |
| 231 | |
| 232 | default: |
| 233 | break; |
| 234 | } |
| 235 | } |
| 236 | |
| 237 | static void mlx5e_async_event(struct mlx5_core_dev *mdev, void *vpriv, |
| 238 | enum mlx5_dev_event event, unsigned long param) |
| 239 | { |
| 240 | struct mlx5e_priv *priv = vpriv; |
| 241 | |
| 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); |
| 246 | } |
| 247 | |
| 248 | static void mlx5e_enable_async_events(struct mlx5e_priv *priv) |
| 249 | { |
| 250 | set_bit(MLX5E_STATE_ASYNC_EVENTS_ENABLE, &priv->state); |
| 251 | } |
| 252 | |
| 253 | static void mlx5e_disable_async_events(struct mlx5e_priv *priv) |
| 254 | { |
| 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); |
| 258 | } |
| 259 | |
| 260 | static void mlx5e_send_nop(struct mlx5e_sq *sq) |
| 261 | { |
| 262 | struct mlx5_wq_cyc *wq = &sq->wq; |
| 263 | |
| 264 | u16 pi = sq->pc & wq->sz_m1; |
| 265 | struct mlx5e_tx_wqe *wqe = mlx5_wq_cyc_get_wqe(wq, pi); |
| 266 | |
| 267 | struct mlx5_wqe_ctrl_seg *cseg = &wqe->ctrl; |
| 268 | |
| 269 | memset(cseg, 0, sizeof(*cseg)); |
| 270 | |
| 271 | cseg->opmod_idx_opcode = cpu_to_be32((sq->pc << 8) | MLX5_OPCODE_NOP); |
| 272 | cseg->qpn_ds = cpu_to_be32((sq->sqn << 8) | 0x01); |
| 273 | cseg->fm_ce_se = MLX5_WQE_CTRL_CQ_UPDATE; |
| 274 | |
| 275 | sq->skb[pi] = NULL; |
| 276 | sq->pc++; |
| 277 | mlx5e_tx_notify_hw(sq, wqe); |
| 278 | } |
| 279 | |
| 280 | static int mlx5e_create_rq(struct mlx5e_channel *c, |
| 281 | struct mlx5e_rq_param *param, |
| 282 | struct mlx5e_rq *rq) |
| 283 | { |
| 284 | struct mlx5e_priv *priv = c->priv; |
| 285 | struct mlx5_core_dev *mdev = priv->mdev; |
| 286 | void *rqc = param->rqc; |
| 287 | void *rqc_wq = MLX5_ADDR_OF(rqc, rqc, wq); |
| 288 | int wq_sz; |
| 289 | int err; |
| 290 | int i; |
| 291 | |
| 292 | err = mlx5_wq_ll_create(mdev, ¶m->wq, rqc_wq, &rq->wq, |
| 293 | &rq->wq_ctrl); |
| 294 | if (err) |
| 295 | return err; |
| 296 | |
| 297 | rq->wq.db = &rq->wq.db[MLX5_RCV_DBR]; |
| 298 | |
| 299 | wq_sz = mlx5_wq_ll_get_size(&rq->wq); |
| 300 | rq->skb = kzalloc_node(wq_sz * sizeof(*rq->skb), GFP_KERNEL, |
| 301 | cpu_to_node(c->cpu)); |
| 302 | if (!rq->skb) { |
| 303 | err = -ENOMEM; |
| 304 | goto err_rq_wq_destroy; |
| 305 | } |
| 306 | |
| 307 | rq->wqe_sz = (priv->params.lro_en) ? priv->params.lro_wqe_sz : |
| 308 | priv->netdev->mtu + ETH_HLEN + VLAN_HLEN; |
| 309 | |
| 310 | for (i = 0; i < wq_sz; i++) { |
| 311 | struct mlx5e_rx_wqe *wqe = mlx5_wq_ll_get_wqe(&rq->wq, i); |
| 312 | |
| 313 | wqe->data.lkey = c->mkey_be; |
| 314 | wqe->data.byte_count = cpu_to_be32(rq->wqe_sz); |
| 315 | } |
| 316 | |
| 317 | rq->pdev = c->pdev; |
| 318 | rq->netdev = c->netdev; |
| 319 | rq->channel = c; |
| 320 | rq->ix = c->ix; |
| 321 | |
| 322 | return 0; |
| 323 | |
| 324 | err_rq_wq_destroy: |
| 325 | mlx5_wq_destroy(&rq->wq_ctrl); |
| 326 | |
| 327 | return err; |
| 328 | } |
| 329 | |
| 330 | static void mlx5e_destroy_rq(struct mlx5e_rq *rq) |
| 331 | { |
| 332 | kfree(rq->skb); |
| 333 | mlx5_wq_destroy(&rq->wq_ctrl); |
| 334 | } |
| 335 | |
| 336 | static int mlx5e_enable_rq(struct mlx5e_rq *rq, struct mlx5e_rq_param *param) |
| 337 | { |
| 338 | struct mlx5e_channel *c = rq->channel; |
| 339 | struct mlx5e_priv *priv = c->priv; |
| 340 | struct mlx5_core_dev *mdev = priv->mdev; |
| 341 | |
| 342 | void *in; |
| 343 | void *rqc; |
| 344 | void *wq; |
| 345 | int inlen; |
| 346 | int err; |
| 347 | |
| 348 | inlen = MLX5_ST_SZ_BYTES(create_rq_in) + |
| 349 | sizeof(u64) * rq->wq_ctrl.buf.npages; |
| 350 | in = mlx5_vzalloc(inlen); |
| 351 | if (!in) |
| 352 | return -ENOMEM; |
| 353 | |
| 354 | rqc = MLX5_ADDR_OF(create_rq_in, in, ctx); |
| 355 | wq = MLX5_ADDR_OF(rqc, rqc, wq); |
| 356 | |
| 357 | memcpy(rqc, param->rqc, sizeof(param->rqc)); |
| 358 | |
| 359 | MLX5_SET(rqc, rqc, cqn, c->rq.cq.mcq.cqn); |
| 360 | MLX5_SET(rqc, rqc, state, MLX5_RQC_STATE_RST); |
| 361 | MLX5_SET(rqc, rqc, flush_in_error_en, 1); |
| 362 | MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_LINKED_LIST); |
| 363 | MLX5_SET(wq, wq, log_wq_pg_sz, rq->wq_ctrl.buf.page_shift - |
| 364 | PAGE_SHIFT); |
| 365 | MLX5_SET64(wq, wq, dbr_addr, rq->wq_ctrl.db.dma); |
| 366 | |
| 367 | mlx5_fill_page_array(&rq->wq_ctrl.buf, |
| 368 | (__be64 *)MLX5_ADDR_OF(wq, wq, pas)); |
| 369 | |
Haggai Abramonvsky | 7db22ff | 2015-06-04 19:30:37 +0300 | [diff] [blame^] | 370 | err = mlx5_core_create_rq(mdev, in, inlen, &rq->rqn); |
Amir Vadai | f62b8bb8 | 2015-05-28 22:28:48 +0300 | [diff] [blame] | 371 | |
| 372 | kvfree(in); |
| 373 | |
| 374 | return err; |
| 375 | } |
| 376 | |
| 377 | static int mlx5e_modify_rq(struct mlx5e_rq *rq, int curr_state, int next_state) |
| 378 | { |
| 379 | struct mlx5e_channel *c = rq->channel; |
| 380 | struct mlx5e_priv *priv = c->priv; |
| 381 | struct mlx5_core_dev *mdev = priv->mdev; |
| 382 | |
| 383 | void *in; |
| 384 | void *rqc; |
| 385 | int inlen; |
| 386 | int err; |
| 387 | |
| 388 | inlen = MLX5_ST_SZ_BYTES(modify_rq_in); |
| 389 | in = mlx5_vzalloc(inlen); |
| 390 | if (!in) |
| 391 | return -ENOMEM; |
| 392 | |
| 393 | rqc = MLX5_ADDR_OF(modify_rq_in, in, ctx); |
| 394 | |
| 395 | MLX5_SET(modify_rq_in, in, rq_state, curr_state); |
| 396 | MLX5_SET(rqc, rqc, state, next_state); |
| 397 | |
Haggai Abramonvsky | 7db22ff | 2015-06-04 19:30:37 +0300 | [diff] [blame^] | 398 | err = mlx5_core_modify_rq(mdev, rq->rqn, in, inlen); |
Amir Vadai | f62b8bb8 | 2015-05-28 22:28:48 +0300 | [diff] [blame] | 399 | |
| 400 | kvfree(in); |
| 401 | |
| 402 | return err; |
| 403 | } |
| 404 | |
| 405 | static void mlx5e_disable_rq(struct mlx5e_rq *rq) |
| 406 | { |
| 407 | struct mlx5e_channel *c = rq->channel; |
| 408 | struct mlx5e_priv *priv = c->priv; |
| 409 | struct mlx5_core_dev *mdev = priv->mdev; |
| 410 | |
Haggai Abramonvsky | 7db22ff | 2015-06-04 19:30:37 +0300 | [diff] [blame^] | 411 | mlx5_core_destroy_rq(mdev, rq->rqn); |
Amir Vadai | f62b8bb8 | 2015-05-28 22:28:48 +0300 | [diff] [blame] | 412 | } |
| 413 | |
| 414 | static int mlx5e_wait_for_min_rx_wqes(struct mlx5e_rq *rq) |
| 415 | { |
| 416 | struct mlx5e_channel *c = rq->channel; |
| 417 | struct mlx5e_priv *priv = c->priv; |
| 418 | struct mlx5_wq_ll *wq = &rq->wq; |
| 419 | int i; |
| 420 | |
| 421 | for (i = 0; i < 1000; i++) { |
| 422 | if (wq->cur_sz >= priv->params.min_rx_wqes) |
| 423 | return 0; |
| 424 | |
| 425 | msleep(20); |
| 426 | } |
| 427 | |
| 428 | return -ETIMEDOUT; |
| 429 | } |
| 430 | |
| 431 | static int mlx5e_open_rq(struct mlx5e_channel *c, |
| 432 | struct mlx5e_rq_param *param, |
| 433 | struct mlx5e_rq *rq) |
| 434 | { |
| 435 | int err; |
| 436 | |
| 437 | err = mlx5e_create_rq(c, param, rq); |
| 438 | if (err) |
| 439 | return err; |
| 440 | |
| 441 | err = mlx5e_enable_rq(rq, param); |
| 442 | if (err) |
| 443 | goto err_destroy_rq; |
| 444 | |
| 445 | err = mlx5e_modify_rq(rq, MLX5_RQC_STATE_RST, MLX5_RQC_STATE_RDY); |
| 446 | if (err) |
| 447 | goto err_disable_rq; |
| 448 | |
| 449 | set_bit(MLX5E_RQ_STATE_POST_WQES_ENABLE, &rq->state); |
| 450 | mlx5e_send_nop(&c->sq[0]); /* trigger mlx5e_post_rx_wqes() */ |
| 451 | |
| 452 | return 0; |
| 453 | |
| 454 | err_disable_rq: |
| 455 | mlx5e_disable_rq(rq); |
| 456 | err_destroy_rq: |
| 457 | mlx5e_destroy_rq(rq); |
| 458 | |
| 459 | return err; |
| 460 | } |
| 461 | |
| 462 | static void mlx5e_close_rq(struct mlx5e_rq *rq) |
| 463 | { |
| 464 | clear_bit(MLX5E_RQ_STATE_POST_WQES_ENABLE, &rq->state); |
| 465 | napi_synchronize(&rq->channel->napi); /* prevent mlx5e_post_rx_wqes */ |
| 466 | |
| 467 | mlx5e_modify_rq(rq, MLX5_RQC_STATE_RDY, MLX5_RQC_STATE_ERR); |
| 468 | while (!mlx5_wq_ll_is_empty(&rq->wq)) |
| 469 | msleep(20); |
| 470 | |
| 471 | /* avoid destroying rq before mlx5e_poll_rx_cq() is done with it */ |
| 472 | napi_synchronize(&rq->channel->napi); |
| 473 | |
| 474 | mlx5e_disable_rq(rq); |
| 475 | mlx5e_destroy_rq(rq); |
| 476 | } |
| 477 | |
| 478 | static void mlx5e_free_sq_db(struct mlx5e_sq *sq) |
| 479 | { |
| 480 | kfree(sq->dma_fifo); |
| 481 | kfree(sq->skb); |
| 482 | } |
| 483 | |
| 484 | static int mlx5e_alloc_sq_db(struct mlx5e_sq *sq, int numa) |
| 485 | { |
| 486 | int wq_sz = mlx5_wq_cyc_get_size(&sq->wq); |
| 487 | int df_sz = wq_sz * MLX5_SEND_WQEBB_NUM_DS; |
| 488 | |
| 489 | sq->skb = kzalloc_node(wq_sz * sizeof(*sq->skb), GFP_KERNEL, numa); |
| 490 | sq->dma_fifo = kzalloc_node(df_sz * sizeof(*sq->dma_fifo), GFP_KERNEL, |
| 491 | numa); |
| 492 | |
| 493 | if (!sq->skb || !sq->dma_fifo) { |
| 494 | mlx5e_free_sq_db(sq); |
| 495 | return -ENOMEM; |
| 496 | } |
| 497 | |
| 498 | sq->dma_fifo_mask = df_sz - 1; |
| 499 | |
| 500 | return 0; |
| 501 | } |
| 502 | |
| 503 | static int mlx5e_create_sq(struct mlx5e_channel *c, |
| 504 | int tc, |
| 505 | struct mlx5e_sq_param *param, |
| 506 | struct mlx5e_sq *sq) |
| 507 | { |
| 508 | struct mlx5e_priv *priv = c->priv; |
| 509 | struct mlx5_core_dev *mdev = priv->mdev; |
| 510 | |
| 511 | void *sqc = param->sqc; |
| 512 | void *sqc_wq = MLX5_ADDR_OF(sqc, sqc, wq); |
| 513 | int err; |
| 514 | |
| 515 | err = mlx5_alloc_map_uar(mdev, &sq->uar); |
| 516 | if (err) |
| 517 | return err; |
| 518 | |
| 519 | err = mlx5_wq_cyc_create(mdev, ¶m->wq, sqc_wq, &sq->wq, |
| 520 | &sq->wq_ctrl); |
| 521 | if (err) |
| 522 | goto err_unmap_free_uar; |
| 523 | |
| 524 | sq->wq.db = &sq->wq.db[MLX5_SND_DBR]; |
| 525 | sq->uar_map = sq->uar.map; |
| 526 | sq->bf_buf_size = (1 << MLX5_CAP_GEN(mdev, log_bf_reg_size)) / 2; |
| 527 | |
| 528 | if (mlx5e_alloc_sq_db(sq, cpu_to_node(c->cpu))) |
| 529 | goto err_sq_wq_destroy; |
| 530 | |
| 531 | sq->txq = netdev_get_tx_queue(priv->netdev, |
| 532 | c->ix + tc * priv->params.num_channels); |
| 533 | |
| 534 | sq->pdev = c->pdev; |
| 535 | sq->mkey_be = c->mkey_be; |
| 536 | sq->channel = c; |
| 537 | sq->tc = tc; |
| 538 | |
| 539 | return 0; |
| 540 | |
| 541 | err_sq_wq_destroy: |
| 542 | mlx5_wq_destroy(&sq->wq_ctrl); |
| 543 | |
| 544 | err_unmap_free_uar: |
| 545 | mlx5_unmap_free_uar(mdev, &sq->uar); |
| 546 | |
| 547 | return err; |
| 548 | } |
| 549 | |
| 550 | static void mlx5e_destroy_sq(struct mlx5e_sq *sq) |
| 551 | { |
| 552 | struct mlx5e_channel *c = sq->channel; |
| 553 | struct mlx5e_priv *priv = c->priv; |
| 554 | |
| 555 | mlx5e_free_sq_db(sq); |
| 556 | mlx5_wq_destroy(&sq->wq_ctrl); |
| 557 | mlx5_unmap_free_uar(priv->mdev, &sq->uar); |
| 558 | } |
| 559 | |
| 560 | static int mlx5e_enable_sq(struct mlx5e_sq *sq, struct mlx5e_sq_param *param) |
| 561 | { |
| 562 | struct mlx5e_channel *c = sq->channel; |
| 563 | struct mlx5e_priv *priv = c->priv; |
| 564 | struct mlx5_core_dev *mdev = priv->mdev; |
| 565 | |
| 566 | void *in; |
| 567 | void *sqc; |
| 568 | void *wq; |
| 569 | int inlen; |
| 570 | int err; |
| 571 | |
| 572 | inlen = MLX5_ST_SZ_BYTES(create_sq_in) + |
| 573 | sizeof(u64) * sq->wq_ctrl.buf.npages; |
| 574 | in = mlx5_vzalloc(inlen); |
| 575 | if (!in) |
| 576 | return -ENOMEM; |
| 577 | |
| 578 | sqc = MLX5_ADDR_OF(create_sq_in, in, ctx); |
| 579 | wq = MLX5_ADDR_OF(sqc, sqc, wq); |
| 580 | |
| 581 | memcpy(sqc, param->sqc, sizeof(param->sqc)); |
| 582 | |
| 583 | MLX5_SET(sqc, sqc, user_index, sq->tc); |
| 584 | MLX5_SET(sqc, sqc, tis_num_0, priv->tisn[sq->tc]); |
| 585 | MLX5_SET(sqc, sqc, cqn, c->sq[sq->tc].cq.mcq.cqn); |
| 586 | MLX5_SET(sqc, sqc, state, MLX5_SQC_STATE_RST); |
| 587 | MLX5_SET(sqc, sqc, tis_lst_sz, 1); |
| 588 | MLX5_SET(sqc, sqc, flush_in_error_en, 1); |
| 589 | |
| 590 | MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_CYCLIC); |
| 591 | MLX5_SET(wq, wq, uar_page, sq->uar.index); |
| 592 | MLX5_SET(wq, wq, log_wq_pg_sz, sq->wq_ctrl.buf.page_shift - |
| 593 | PAGE_SHIFT); |
| 594 | MLX5_SET64(wq, wq, dbr_addr, sq->wq_ctrl.db.dma); |
| 595 | |
| 596 | mlx5_fill_page_array(&sq->wq_ctrl.buf, |
| 597 | (__be64 *)MLX5_ADDR_OF(wq, wq, pas)); |
| 598 | |
Haggai Abramonvsky | 7db22ff | 2015-06-04 19:30:37 +0300 | [diff] [blame^] | 599 | err = mlx5_core_create_sq(mdev, in, inlen, &sq->sqn); |
Amir Vadai | f62b8bb8 | 2015-05-28 22:28:48 +0300 | [diff] [blame] | 600 | |
| 601 | kvfree(in); |
| 602 | |
| 603 | return err; |
| 604 | } |
| 605 | |
| 606 | static int mlx5e_modify_sq(struct mlx5e_sq *sq, int curr_state, int next_state) |
| 607 | { |
| 608 | struct mlx5e_channel *c = sq->channel; |
| 609 | struct mlx5e_priv *priv = c->priv; |
| 610 | struct mlx5_core_dev *mdev = priv->mdev; |
| 611 | |
| 612 | void *in; |
| 613 | void *sqc; |
| 614 | int inlen; |
| 615 | int err; |
| 616 | |
| 617 | inlen = MLX5_ST_SZ_BYTES(modify_sq_in); |
| 618 | in = mlx5_vzalloc(inlen); |
| 619 | if (!in) |
| 620 | return -ENOMEM; |
| 621 | |
| 622 | sqc = MLX5_ADDR_OF(modify_sq_in, in, ctx); |
| 623 | |
| 624 | MLX5_SET(modify_sq_in, in, sq_state, curr_state); |
| 625 | MLX5_SET(sqc, sqc, state, next_state); |
| 626 | |
Haggai Abramonvsky | 7db22ff | 2015-06-04 19:30:37 +0300 | [diff] [blame^] | 627 | err = mlx5_core_modify_sq(mdev, sq->sqn, in, inlen); |
Amir Vadai | f62b8bb8 | 2015-05-28 22:28:48 +0300 | [diff] [blame] | 628 | |
| 629 | kvfree(in); |
| 630 | |
| 631 | return err; |
| 632 | } |
| 633 | |
| 634 | static void mlx5e_disable_sq(struct mlx5e_sq *sq) |
| 635 | { |
| 636 | struct mlx5e_channel *c = sq->channel; |
| 637 | struct mlx5e_priv *priv = c->priv; |
| 638 | struct mlx5_core_dev *mdev = priv->mdev; |
| 639 | |
Haggai Abramonvsky | 7db22ff | 2015-06-04 19:30:37 +0300 | [diff] [blame^] | 640 | mlx5_core_destroy_sq(mdev, sq->sqn); |
Amir Vadai | f62b8bb8 | 2015-05-28 22:28:48 +0300 | [diff] [blame] | 641 | } |
| 642 | |
| 643 | static int mlx5e_open_sq(struct mlx5e_channel *c, |
| 644 | int tc, |
| 645 | struct mlx5e_sq_param *param, |
| 646 | struct mlx5e_sq *sq) |
| 647 | { |
| 648 | int err; |
| 649 | |
| 650 | err = mlx5e_create_sq(c, tc, param, sq); |
| 651 | if (err) |
| 652 | return err; |
| 653 | |
| 654 | err = mlx5e_enable_sq(sq, param); |
| 655 | if (err) |
| 656 | goto err_destroy_sq; |
| 657 | |
| 658 | err = mlx5e_modify_sq(sq, MLX5_SQC_STATE_RST, MLX5_SQC_STATE_RDY); |
| 659 | if (err) |
| 660 | goto err_disable_sq; |
| 661 | |
| 662 | set_bit(MLX5E_SQ_STATE_WAKE_TXQ_ENABLE, &sq->state); |
| 663 | netdev_tx_reset_queue(sq->txq); |
| 664 | netif_tx_start_queue(sq->txq); |
| 665 | |
| 666 | return 0; |
| 667 | |
| 668 | err_disable_sq: |
| 669 | mlx5e_disable_sq(sq); |
| 670 | err_destroy_sq: |
| 671 | mlx5e_destroy_sq(sq); |
| 672 | |
| 673 | return err; |
| 674 | } |
| 675 | |
| 676 | static inline void netif_tx_disable_queue(struct netdev_queue *txq) |
| 677 | { |
| 678 | __netif_tx_lock_bh(txq); |
| 679 | netif_tx_stop_queue(txq); |
| 680 | __netif_tx_unlock_bh(txq); |
| 681 | } |
| 682 | |
| 683 | static void mlx5e_close_sq(struct mlx5e_sq *sq) |
| 684 | { |
| 685 | clear_bit(MLX5E_SQ_STATE_WAKE_TXQ_ENABLE, &sq->state); |
| 686 | napi_synchronize(&sq->channel->napi); /* prevent netif_tx_wake_queue */ |
| 687 | netif_tx_disable_queue(sq->txq); |
| 688 | |
| 689 | /* ensure hw is notified of all pending wqes */ |
| 690 | if (mlx5e_sq_has_room_for(sq, 1)) |
| 691 | mlx5e_send_nop(sq); |
| 692 | |
| 693 | mlx5e_modify_sq(sq, MLX5_SQC_STATE_RDY, MLX5_SQC_STATE_ERR); |
| 694 | while (sq->cc != sq->pc) /* wait till sq is empty */ |
| 695 | msleep(20); |
| 696 | |
| 697 | /* avoid destroying sq before mlx5e_poll_tx_cq() is done with it */ |
| 698 | napi_synchronize(&sq->channel->napi); |
| 699 | |
| 700 | mlx5e_disable_sq(sq); |
| 701 | mlx5e_destroy_sq(sq); |
| 702 | } |
| 703 | |
| 704 | static int mlx5e_create_cq(struct mlx5e_channel *c, |
| 705 | struct mlx5e_cq_param *param, |
| 706 | struct mlx5e_cq *cq) |
| 707 | { |
| 708 | struct mlx5e_priv *priv = c->priv; |
| 709 | struct mlx5_core_dev *mdev = priv->mdev; |
| 710 | struct mlx5_core_cq *mcq = &cq->mcq; |
| 711 | int eqn_not_used; |
| 712 | int irqn; |
| 713 | int err; |
| 714 | u32 i; |
| 715 | |
| 716 | param->wq.numa = cpu_to_node(c->cpu); |
| 717 | param->eq_ix = c->ix; |
| 718 | |
| 719 | err = mlx5_cqwq_create(mdev, ¶m->wq, param->cqc, &cq->wq, |
| 720 | &cq->wq_ctrl); |
| 721 | if (err) |
| 722 | return err; |
| 723 | |
| 724 | mlx5_vector2eqn(mdev, param->eq_ix, &eqn_not_used, &irqn); |
| 725 | |
| 726 | cq->napi = &c->napi; |
| 727 | |
| 728 | mcq->cqe_sz = 64; |
| 729 | mcq->set_ci_db = cq->wq_ctrl.db.db; |
| 730 | mcq->arm_db = cq->wq_ctrl.db.db + 1; |
| 731 | *mcq->set_ci_db = 0; |
| 732 | *mcq->arm_db = 0; |
| 733 | mcq->vector = param->eq_ix; |
| 734 | mcq->comp = mlx5e_completion_event; |
| 735 | mcq->event = mlx5e_cq_error_event; |
| 736 | mcq->irqn = irqn; |
| 737 | mcq->uar = &priv->cq_uar; |
| 738 | |
| 739 | for (i = 0; i < mlx5_cqwq_get_size(&cq->wq); i++) { |
| 740 | struct mlx5_cqe64 *cqe = mlx5_cqwq_get_wqe(&cq->wq, i); |
| 741 | |
| 742 | cqe->op_own = 0xf1; |
| 743 | } |
| 744 | |
| 745 | cq->channel = c; |
| 746 | |
| 747 | return 0; |
| 748 | } |
| 749 | |
| 750 | static void mlx5e_destroy_cq(struct mlx5e_cq *cq) |
| 751 | { |
| 752 | mlx5_wq_destroy(&cq->wq_ctrl); |
| 753 | } |
| 754 | |
| 755 | static int mlx5e_enable_cq(struct mlx5e_cq *cq, struct mlx5e_cq_param *param) |
| 756 | { |
| 757 | struct mlx5e_channel *c = cq->channel; |
| 758 | struct mlx5e_priv *priv = c->priv; |
| 759 | struct mlx5_core_dev *mdev = priv->mdev; |
| 760 | struct mlx5_core_cq *mcq = &cq->mcq; |
| 761 | |
| 762 | void *in; |
| 763 | void *cqc; |
| 764 | int inlen; |
| 765 | int irqn_not_used; |
| 766 | int eqn; |
| 767 | int err; |
| 768 | |
| 769 | inlen = MLX5_ST_SZ_BYTES(create_cq_in) + |
| 770 | sizeof(u64) * cq->wq_ctrl.buf.npages; |
| 771 | in = mlx5_vzalloc(inlen); |
| 772 | if (!in) |
| 773 | return -ENOMEM; |
| 774 | |
| 775 | cqc = MLX5_ADDR_OF(create_cq_in, in, cq_context); |
| 776 | |
| 777 | memcpy(cqc, param->cqc, sizeof(param->cqc)); |
| 778 | |
| 779 | mlx5_fill_page_array(&cq->wq_ctrl.buf, |
| 780 | (__be64 *)MLX5_ADDR_OF(create_cq_in, in, pas)); |
| 781 | |
| 782 | mlx5_vector2eqn(mdev, param->eq_ix, &eqn, &irqn_not_used); |
| 783 | |
| 784 | MLX5_SET(cqc, cqc, c_eqn, eqn); |
| 785 | MLX5_SET(cqc, cqc, uar_page, mcq->uar->index); |
| 786 | MLX5_SET(cqc, cqc, log_page_size, cq->wq_ctrl.buf.page_shift - |
| 787 | PAGE_SHIFT); |
| 788 | MLX5_SET64(cqc, cqc, dbr_addr, cq->wq_ctrl.db.dma); |
| 789 | |
| 790 | err = mlx5_core_create_cq(mdev, mcq, in, inlen); |
| 791 | |
| 792 | kvfree(in); |
| 793 | |
| 794 | if (err) |
| 795 | return err; |
| 796 | |
| 797 | mlx5e_cq_arm(cq); |
| 798 | |
| 799 | return 0; |
| 800 | } |
| 801 | |
| 802 | static void mlx5e_disable_cq(struct mlx5e_cq *cq) |
| 803 | { |
| 804 | struct mlx5e_channel *c = cq->channel; |
| 805 | struct mlx5e_priv *priv = c->priv; |
| 806 | struct mlx5_core_dev *mdev = priv->mdev; |
| 807 | |
| 808 | mlx5_core_destroy_cq(mdev, &cq->mcq); |
| 809 | } |
| 810 | |
| 811 | static int mlx5e_open_cq(struct mlx5e_channel *c, |
| 812 | struct mlx5e_cq_param *param, |
| 813 | struct mlx5e_cq *cq, |
| 814 | u16 moderation_usecs, |
| 815 | u16 moderation_frames) |
| 816 | { |
| 817 | int err; |
| 818 | struct mlx5e_priv *priv = c->priv; |
| 819 | struct mlx5_core_dev *mdev = priv->mdev; |
| 820 | |
| 821 | err = mlx5e_create_cq(c, param, cq); |
| 822 | if (err) |
| 823 | return err; |
| 824 | |
| 825 | err = mlx5e_enable_cq(cq, param); |
| 826 | if (err) |
| 827 | goto err_destroy_cq; |
| 828 | |
| 829 | err = mlx5_core_modify_cq_moderation(mdev, &cq->mcq, |
| 830 | moderation_usecs, |
| 831 | moderation_frames); |
| 832 | if (err) |
| 833 | goto err_destroy_cq; |
| 834 | |
| 835 | return 0; |
| 836 | |
| 837 | err_destroy_cq: |
| 838 | mlx5e_destroy_cq(cq); |
| 839 | |
| 840 | return err; |
| 841 | } |
| 842 | |
| 843 | static void mlx5e_close_cq(struct mlx5e_cq *cq) |
| 844 | { |
| 845 | mlx5e_disable_cq(cq); |
| 846 | mlx5e_destroy_cq(cq); |
| 847 | } |
| 848 | |
| 849 | static int mlx5e_get_cpu(struct mlx5e_priv *priv, int ix) |
| 850 | { |
| 851 | return cpumask_first(priv->mdev->priv.irq_info[ix].mask); |
| 852 | } |
| 853 | |
| 854 | static int mlx5e_open_tx_cqs(struct mlx5e_channel *c, |
| 855 | struct mlx5e_channel_param *cparam) |
| 856 | { |
| 857 | struct mlx5e_priv *priv = c->priv; |
| 858 | int err; |
| 859 | int tc; |
| 860 | |
| 861 | for (tc = 0; tc < c->num_tc; tc++) { |
| 862 | err = mlx5e_open_cq(c, &cparam->tx_cq, &c->sq[tc].cq, |
| 863 | priv->params.tx_cq_moderation_usec, |
| 864 | priv->params.tx_cq_moderation_pkts); |
| 865 | if (err) |
| 866 | goto err_close_tx_cqs; |
| 867 | |
| 868 | c->sq[tc].cq.sqrq = &c->sq[tc]; |
| 869 | } |
| 870 | |
| 871 | return 0; |
| 872 | |
| 873 | err_close_tx_cqs: |
| 874 | for (tc--; tc >= 0; tc--) |
| 875 | mlx5e_close_cq(&c->sq[tc].cq); |
| 876 | |
| 877 | return err; |
| 878 | } |
| 879 | |
| 880 | static void mlx5e_close_tx_cqs(struct mlx5e_channel *c) |
| 881 | { |
| 882 | int tc; |
| 883 | |
| 884 | for (tc = 0; tc < c->num_tc; tc++) |
| 885 | mlx5e_close_cq(&c->sq[tc].cq); |
| 886 | } |
| 887 | |
| 888 | static int mlx5e_open_sqs(struct mlx5e_channel *c, |
| 889 | struct mlx5e_channel_param *cparam) |
| 890 | { |
| 891 | int err; |
| 892 | int tc; |
| 893 | |
| 894 | for (tc = 0; tc < c->num_tc; tc++) { |
| 895 | err = mlx5e_open_sq(c, tc, &cparam->sq, &c->sq[tc]); |
| 896 | if (err) |
| 897 | goto err_close_sqs; |
| 898 | } |
| 899 | |
| 900 | return 0; |
| 901 | |
| 902 | err_close_sqs: |
| 903 | for (tc--; tc >= 0; tc--) |
| 904 | mlx5e_close_sq(&c->sq[tc]); |
| 905 | |
| 906 | return err; |
| 907 | } |
| 908 | |
| 909 | static void mlx5e_close_sqs(struct mlx5e_channel *c) |
| 910 | { |
| 911 | int tc; |
| 912 | |
| 913 | for (tc = 0; tc < c->num_tc; tc++) |
| 914 | mlx5e_close_sq(&c->sq[tc]); |
| 915 | } |
| 916 | |
| 917 | static int mlx5e_open_channel(struct mlx5e_priv *priv, int ix, |
| 918 | struct mlx5e_channel_param *cparam, |
| 919 | struct mlx5e_channel **cp) |
| 920 | { |
| 921 | struct net_device *netdev = priv->netdev; |
| 922 | int cpu = mlx5e_get_cpu(priv, ix); |
| 923 | struct mlx5e_channel *c; |
| 924 | int err; |
| 925 | |
| 926 | c = kzalloc_node(sizeof(*c), GFP_KERNEL, cpu_to_node(cpu)); |
| 927 | if (!c) |
| 928 | return -ENOMEM; |
| 929 | |
| 930 | c->priv = priv; |
| 931 | c->ix = ix; |
| 932 | c->cpu = cpu; |
| 933 | c->pdev = &priv->mdev->pdev->dev; |
| 934 | c->netdev = priv->netdev; |
| 935 | c->mkey_be = cpu_to_be32(priv->mr.key); |
| 936 | c->num_tc = priv->num_tc; |
| 937 | |
| 938 | netif_napi_add(netdev, &c->napi, mlx5e_napi_poll, 64); |
| 939 | |
| 940 | err = mlx5e_open_tx_cqs(c, cparam); |
| 941 | if (err) |
| 942 | goto err_napi_del; |
| 943 | |
| 944 | err = mlx5e_open_cq(c, &cparam->rx_cq, &c->rq.cq, |
| 945 | priv->params.rx_cq_moderation_usec, |
| 946 | priv->params.rx_cq_moderation_pkts); |
| 947 | if (err) |
| 948 | goto err_close_tx_cqs; |
| 949 | c->rq.cq.sqrq = &c->rq; |
| 950 | |
| 951 | napi_enable(&c->napi); |
| 952 | |
| 953 | err = mlx5e_open_sqs(c, cparam); |
| 954 | if (err) |
| 955 | goto err_disable_napi; |
| 956 | |
| 957 | err = mlx5e_open_rq(c, &cparam->rq, &c->rq); |
| 958 | if (err) |
| 959 | goto err_close_sqs; |
| 960 | |
| 961 | netif_set_xps_queue(netdev, get_cpu_mask(c->cpu), ix); |
| 962 | *cp = c; |
| 963 | |
| 964 | return 0; |
| 965 | |
| 966 | err_close_sqs: |
| 967 | mlx5e_close_sqs(c); |
| 968 | |
| 969 | err_disable_napi: |
| 970 | napi_disable(&c->napi); |
| 971 | mlx5e_close_cq(&c->rq.cq); |
| 972 | |
| 973 | err_close_tx_cqs: |
| 974 | mlx5e_close_tx_cqs(c); |
| 975 | |
| 976 | err_napi_del: |
| 977 | netif_napi_del(&c->napi); |
| 978 | kfree(c); |
| 979 | |
| 980 | return err; |
| 981 | } |
| 982 | |
| 983 | static void mlx5e_close_channel(struct mlx5e_channel *c) |
| 984 | { |
| 985 | mlx5e_close_rq(&c->rq); |
| 986 | mlx5e_close_sqs(c); |
| 987 | napi_disable(&c->napi); |
| 988 | mlx5e_close_cq(&c->rq.cq); |
| 989 | mlx5e_close_tx_cqs(c); |
| 990 | netif_napi_del(&c->napi); |
| 991 | kfree(c); |
| 992 | } |
| 993 | |
| 994 | static void mlx5e_build_rq_param(struct mlx5e_priv *priv, |
| 995 | struct mlx5e_rq_param *param) |
| 996 | { |
| 997 | void *rqc = param->rqc; |
| 998 | void *wq = MLX5_ADDR_OF(rqc, rqc, wq); |
| 999 | |
| 1000 | MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_LINKED_LIST); |
| 1001 | MLX5_SET(wq, wq, end_padding_mode, MLX5_WQ_END_PAD_MODE_ALIGN); |
| 1002 | MLX5_SET(wq, wq, log_wq_stride, ilog2(sizeof(struct mlx5e_rx_wqe))); |
| 1003 | MLX5_SET(wq, wq, log_wq_sz, priv->params.log_rq_size); |
| 1004 | MLX5_SET(wq, wq, pd, priv->pdn); |
| 1005 | |
| 1006 | param->wq.numa = dev_to_node(&priv->mdev->pdev->dev); |
| 1007 | param->wq.linear = 1; |
| 1008 | } |
| 1009 | |
| 1010 | static void mlx5e_build_sq_param(struct mlx5e_priv *priv, |
| 1011 | struct mlx5e_sq_param *param) |
| 1012 | { |
| 1013 | void *sqc = param->sqc; |
| 1014 | void *wq = MLX5_ADDR_OF(sqc, sqc, wq); |
| 1015 | |
| 1016 | MLX5_SET(wq, wq, log_wq_sz, priv->params.log_sq_size); |
| 1017 | MLX5_SET(wq, wq, log_wq_stride, ilog2(MLX5_SEND_WQE_BB)); |
| 1018 | MLX5_SET(wq, wq, pd, priv->pdn); |
| 1019 | |
| 1020 | param->wq.numa = dev_to_node(&priv->mdev->pdev->dev); |
| 1021 | } |
| 1022 | |
| 1023 | static void mlx5e_build_common_cq_param(struct mlx5e_priv *priv, |
| 1024 | struct mlx5e_cq_param *param) |
| 1025 | { |
| 1026 | void *cqc = param->cqc; |
| 1027 | |
| 1028 | MLX5_SET(cqc, cqc, uar_page, priv->cq_uar.index); |
| 1029 | } |
| 1030 | |
| 1031 | static void mlx5e_build_rx_cq_param(struct mlx5e_priv *priv, |
| 1032 | struct mlx5e_cq_param *param) |
| 1033 | { |
| 1034 | void *cqc = param->cqc; |
| 1035 | |
| 1036 | MLX5_SET(cqc, cqc, log_cq_size, priv->params.log_rq_size); |
| 1037 | |
| 1038 | mlx5e_build_common_cq_param(priv, param); |
| 1039 | } |
| 1040 | |
| 1041 | static void mlx5e_build_tx_cq_param(struct mlx5e_priv *priv, |
| 1042 | struct mlx5e_cq_param *param) |
| 1043 | { |
| 1044 | void *cqc = param->cqc; |
| 1045 | |
| 1046 | MLX5_SET(cqc, cqc, log_cq_size, priv->params.log_sq_size); |
| 1047 | |
| 1048 | mlx5e_build_common_cq_param(priv, param); |
| 1049 | } |
| 1050 | |
| 1051 | static void mlx5e_build_channel_param(struct mlx5e_priv *priv, |
| 1052 | struct mlx5e_channel_param *cparam) |
| 1053 | { |
| 1054 | memset(cparam, 0, sizeof(*cparam)); |
| 1055 | |
| 1056 | mlx5e_build_rq_param(priv, &cparam->rq); |
| 1057 | mlx5e_build_sq_param(priv, &cparam->sq); |
| 1058 | mlx5e_build_rx_cq_param(priv, &cparam->rx_cq); |
| 1059 | mlx5e_build_tx_cq_param(priv, &cparam->tx_cq); |
| 1060 | } |
| 1061 | |
| 1062 | static int mlx5e_open_channels(struct mlx5e_priv *priv) |
| 1063 | { |
| 1064 | struct mlx5e_channel_param cparam; |
| 1065 | int err; |
| 1066 | int i; |
| 1067 | int j; |
| 1068 | |
| 1069 | priv->channel = kcalloc(priv->params.num_channels, |
| 1070 | sizeof(struct mlx5e_channel *), GFP_KERNEL); |
| 1071 | if (!priv->channel) |
| 1072 | return -ENOMEM; |
| 1073 | |
| 1074 | mlx5e_build_channel_param(priv, &cparam); |
| 1075 | for (i = 0; i < priv->params.num_channels; i++) { |
| 1076 | err = mlx5e_open_channel(priv, i, &cparam, &priv->channel[i]); |
| 1077 | if (err) |
| 1078 | goto err_close_channels; |
| 1079 | } |
| 1080 | |
| 1081 | for (j = 0; j < priv->params.num_channels; j++) { |
| 1082 | err = mlx5e_wait_for_min_rx_wqes(&priv->channel[j]->rq); |
| 1083 | if (err) |
| 1084 | goto err_close_channels; |
| 1085 | } |
| 1086 | |
| 1087 | return 0; |
| 1088 | |
| 1089 | err_close_channels: |
| 1090 | for (i--; i >= 0; i--) |
| 1091 | mlx5e_close_channel(priv->channel[i]); |
| 1092 | |
| 1093 | kfree(priv->channel); |
| 1094 | |
| 1095 | return err; |
| 1096 | } |
| 1097 | |
| 1098 | static void mlx5e_close_channels(struct mlx5e_priv *priv) |
| 1099 | { |
| 1100 | int i; |
| 1101 | |
| 1102 | for (i = 0; i < priv->params.num_channels; i++) |
| 1103 | mlx5e_close_channel(priv->channel[i]); |
| 1104 | |
| 1105 | kfree(priv->channel); |
| 1106 | } |
| 1107 | |
| 1108 | static int mlx5e_open_tis(struct mlx5e_priv *priv, int tc) |
| 1109 | { |
| 1110 | struct mlx5_core_dev *mdev = priv->mdev; |
| 1111 | u32 in[MLX5_ST_SZ_DW(create_tis_in)]; |
| 1112 | void *tisc = MLX5_ADDR_OF(create_tis_in, in, ctx); |
| 1113 | |
| 1114 | memset(in, 0, sizeof(in)); |
| 1115 | |
| 1116 | MLX5_SET(tisc, tisc, prio, tc); |
| 1117 | |
Haggai Abramonvsky | 7db22ff | 2015-06-04 19:30:37 +0300 | [diff] [blame^] | 1118 | return mlx5_core_create_tis(mdev, in, sizeof(in), &priv->tisn[tc]); |
Amir Vadai | f62b8bb8 | 2015-05-28 22:28:48 +0300 | [diff] [blame] | 1119 | } |
| 1120 | |
| 1121 | static void mlx5e_close_tis(struct mlx5e_priv *priv, int tc) |
| 1122 | { |
Haggai Abramonvsky | 7db22ff | 2015-06-04 19:30:37 +0300 | [diff] [blame^] | 1123 | mlx5_core_destroy_tis(priv->mdev, priv->tisn[tc]); |
Amir Vadai | f62b8bb8 | 2015-05-28 22:28:48 +0300 | [diff] [blame] | 1124 | } |
| 1125 | |
| 1126 | static int mlx5e_open_tises(struct mlx5e_priv *priv) |
| 1127 | { |
| 1128 | int num_tc = priv->num_tc; |
| 1129 | int err; |
| 1130 | int tc; |
| 1131 | |
| 1132 | for (tc = 0; tc < num_tc; tc++) { |
| 1133 | err = mlx5e_open_tis(priv, tc); |
| 1134 | if (err) |
| 1135 | goto err_close_tises; |
| 1136 | } |
| 1137 | |
| 1138 | return 0; |
| 1139 | |
| 1140 | err_close_tises: |
| 1141 | for (tc--; tc >= 0; tc--) |
| 1142 | mlx5e_close_tis(priv, tc); |
| 1143 | |
| 1144 | return err; |
| 1145 | } |
| 1146 | |
| 1147 | static void mlx5e_close_tises(struct mlx5e_priv *priv) |
| 1148 | { |
| 1149 | int num_tc = priv->num_tc; |
| 1150 | int tc; |
| 1151 | |
| 1152 | for (tc = 0; tc < num_tc; tc++) |
| 1153 | mlx5e_close_tis(priv, tc); |
| 1154 | } |
| 1155 | |
| 1156 | static int mlx5e_open_rqt(struct mlx5e_priv *priv) |
| 1157 | { |
| 1158 | struct mlx5_core_dev *mdev = priv->mdev; |
| 1159 | u32 *in; |
| 1160 | u32 out[MLX5_ST_SZ_DW(create_rqt_out)]; |
| 1161 | void *rqtc; |
| 1162 | int inlen; |
| 1163 | int err; |
| 1164 | int sz; |
| 1165 | int i; |
| 1166 | |
| 1167 | sz = 1 << priv->params.rx_hash_log_tbl_sz; |
| 1168 | |
| 1169 | inlen = MLX5_ST_SZ_BYTES(create_rqt_in) + sizeof(u32) * sz; |
| 1170 | in = mlx5_vzalloc(inlen); |
| 1171 | if (!in) |
| 1172 | return -ENOMEM; |
| 1173 | |
| 1174 | rqtc = MLX5_ADDR_OF(create_rqt_in, in, rqt_context); |
| 1175 | |
| 1176 | MLX5_SET(rqtc, rqtc, rqt_actual_size, sz); |
| 1177 | MLX5_SET(rqtc, rqtc, rqt_max_size, sz); |
| 1178 | |
| 1179 | for (i = 0; i < sz; i++) { |
| 1180 | int ix = i % priv->params.num_channels; |
| 1181 | |
| 1182 | MLX5_SET(rqtc, rqtc, rq_num[i], priv->channel[ix]->rq.rqn); |
| 1183 | } |
| 1184 | |
| 1185 | MLX5_SET(create_rqt_in, in, opcode, MLX5_CMD_OP_CREATE_RQT); |
| 1186 | |
| 1187 | memset(out, 0, sizeof(out)); |
| 1188 | err = mlx5_cmd_exec_check_status(mdev, in, inlen, out, sizeof(out)); |
| 1189 | if (!err) |
| 1190 | priv->rqtn = MLX5_GET(create_rqt_out, out, rqtn); |
| 1191 | |
| 1192 | kvfree(in); |
| 1193 | |
| 1194 | return err; |
| 1195 | } |
| 1196 | |
| 1197 | static void mlx5e_close_rqt(struct mlx5e_priv *priv) |
| 1198 | { |
| 1199 | u32 in[MLX5_ST_SZ_DW(destroy_rqt_in)]; |
| 1200 | u32 out[MLX5_ST_SZ_DW(destroy_rqt_out)]; |
| 1201 | |
| 1202 | memset(in, 0, sizeof(in)); |
| 1203 | |
| 1204 | MLX5_SET(destroy_rqt_in, in, opcode, MLX5_CMD_OP_DESTROY_RQT); |
| 1205 | MLX5_SET(destroy_rqt_in, in, rqtn, priv->rqtn); |
| 1206 | |
| 1207 | mlx5_cmd_exec_check_status(priv->mdev, in, sizeof(in), out, |
| 1208 | sizeof(out)); |
| 1209 | } |
| 1210 | |
| 1211 | static void mlx5e_build_tir_ctx(struct mlx5e_priv *priv, u32 *tirc, int tt) |
| 1212 | { |
| 1213 | void *hfso = MLX5_ADDR_OF(tirc, tirc, rx_hash_field_selector_outer); |
| 1214 | |
| 1215 | #define ROUGH_MAX_L2_L3_HDR_SZ 256 |
| 1216 | |
| 1217 | #define MLX5_HASH_IP (MLX5_HASH_FIELD_SEL_SRC_IP |\ |
| 1218 | MLX5_HASH_FIELD_SEL_DST_IP) |
| 1219 | |
| 1220 | #define MLX5_HASH_ALL (MLX5_HASH_FIELD_SEL_SRC_IP |\ |
| 1221 | MLX5_HASH_FIELD_SEL_DST_IP |\ |
| 1222 | MLX5_HASH_FIELD_SEL_L4_SPORT |\ |
| 1223 | MLX5_HASH_FIELD_SEL_L4_DPORT) |
| 1224 | |
| 1225 | if (priv->params.lro_en) { |
| 1226 | MLX5_SET(tirc, tirc, lro_enable_mask, |
| 1227 | MLX5_TIRC_LRO_ENABLE_MASK_IPV4_LRO | |
| 1228 | MLX5_TIRC_LRO_ENABLE_MASK_IPV6_LRO); |
| 1229 | MLX5_SET(tirc, tirc, lro_max_ip_payload_size, |
| 1230 | (priv->params.lro_wqe_sz - |
| 1231 | ROUGH_MAX_L2_L3_HDR_SZ) >> 8); |
| 1232 | MLX5_SET(tirc, tirc, lro_timeout_period_usecs, |
| 1233 | MLX5_CAP_ETH(priv->mdev, |
| 1234 | lro_timer_supported_periods[3])); |
| 1235 | } |
| 1236 | |
| 1237 | switch (tt) { |
| 1238 | case MLX5E_TT_ANY: |
| 1239 | MLX5_SET(tirc, tirc, disp_type, |
| 1240 | MLX5_TIRC_DISP_TYPE_DIRECT); |
| 1241 | MLX5_SET(tirc, tirc, inline_rqn, |
| 1242 | priv->channel[0]->rq.rqn); |
| 1243 | break; |
| 1244 | default: |
| 1245 | MLX5_SET(tirc, tirc, disp_type, |
| 1246 | MLX5_TIRC_DISP_TYPE_INDIRECT); |
| 1247 | MLX5_SET(tirc, tirc, indirect_table, |
| 1248 | priv->rqtn); |
| 1249 | MLX5_SET(tirc, tirc, rx_hash_fn, |
| 1250 | MLX5_TIRC_RX_HASH_FN_HASH_TOEPLITZ); |
| 1251 | MLX5_SET(tirc, tirc, rx_hash_symmetric, 1); |
| 1252 | netdev_rss_key_fill(MLX5_ADDR_OF(tirc, tirc, |
| 1253 | rx_hash_toeplitz_key), |
| 1254 | MLX5_FLD_SZ_BYTES(tirc, |
| 1255 | rx_hash_toeplitz_key)); |
| 1256 | break; |
| 1257 | } |
| 1258 | |
| 1259 | switch (tt) { |
| 1260 | case MLX5E_TT_IPV4_TCP: |
| 1261 | MLX5_SET(rx_hash_field_select, hfso, l3_prot_type, |
| 1262 | MLX5_L3_PROT_TYPE_IPV4); |
| 1263 | MLX5_SET(rx_hash_field_select, hfso, l4_prot_type, |
| 1264 | MLX5_L4_PROT_TYPE_TCP); |
| 1265 | MLX5_SET(rx_hash_field_select, hfso, selected_fields, |
| 1266 | MLX5_HASH_ALL); |
| 1267 | break; |
| 1268 | |
| 1269 | case MLX5E_TT_IPV6_TCP: |
| 1270 | MLX5_SET(rx_hash_field_select, hfso, l3_prot_type, |
| 1271 | MLX5_L3_PROT_TYPE_IPV6); |
| 1272 | MLX5_SET(rx_hash_field_select, hfso, l4_prot_type, |
| 1273 | MLX5_L4_PROT_TYPE_TCP); |
| 1274 | MLX5_SET(rx_hash_field_select, hfso, selected_fields, |
| 1275 | MLX5_HASH_ALL); |
| 1276 | break; |
| 1277 | |
| 1278 | case MLX5E_TT_IPV4_UDP: |
| 1279 | MLX5_SET(rx_hash_field_select, hfso, l3_prot_type, |
| 1280 | MLX5_L3_PROT_TYPE_IPV4); |
| 1281 | MLX5_SET(rx_hash_field_select, hfso, l4_prot_type, |
| 1282 | MLX5_L4_PROT_TYPE_UDP); |
| 1283 | MLX5_SET(rx_hash_field_select, hfso, selected_fields, |
| 1284 | MLX5_HASH_ALL); |
| 1285 | break; |
| 1286 | |
| 1287 | case MLX5E_TT_IPV6_UDP: |
| 1288 | MLX5_SET(rx_hash_field_select, hfso, l3_prot_type, |
| 1289 | MLX5_L3_PROT_TYPE_IPV6); |
| 1290 | MLX5_SET(rx_hash_field_select, hfso, l4_prot_type, |
| 1291 | MLX5_L4_PROT_TYPE_UDP); |
| 1292 | MLX5_SET(rx_hash_field_select, hfso, selected_fields, |
| 1293 | MLX5_HASH_ALL); |
| 1294 | break; |
| 1295 | |
| 1296 | case MLX5E_TT_IPV4: |
| 1297 | MLX5_SET(rx_hash_field_select, hfso, l3_prot_type, |
| 1298 | MLX5_L3_PROT_TYPE_IPV4); |
| 1299 | MLX5_SET(rx_hash_field_select, hfso, selected_fields, |
| 1300 | MLX5_HASH_IP); |
| 1301 | break; |
| 1302 | |
| 1303 | case MLX5E_TT_IPV6: |
| 1304 | MLX5_SET(rx_hash_field_select, hfso, l3_prot_type, |
| 1305 | MLX5_L3_PROT_TYPE_IPV6); |
| 1306 | MLX5_SET(rx_hash_field_select, hfso, selected_fields, |
| 1307 | MLX5_HASH_IP); |
| 1308 | break; |
| 1309 | } |
| 1310 | } |
| 1311 | |
| 1312 | static int mlx5e_open_tir(struct mlx5e_priv *priv, int tt) |
| 1313 | { |
| 1314 | struct mlx5_core_dev *mdev = priv->mdev; |
| 1315 | u32 *in; |
| 1316 | void *tirc; |
| 1317 | int inlen; |
| 1318 | int err; |
| 1319 | |
| 1320 | inlen = MLX5_ST_SZ_BYTES(create_tir_in); |
| 1321 | in = mlx5_vzalloc(inlen); |
| 1322 | if (!in) |
| 1323 | return -ENOMEM; |
| 1324 | |
| 1325 | tirc = MLX5_ADDR_OF(create_tir_in, in, ctx); |
| 1326 | |
| 1327 | mlx5e_build_tir_ctx(priv, tirc, tt); |
| 1328 | |
Haggai Abramonvsky | 7db22ff | 2015-06-04 19:30:37 +0300 | [diff] [blame^] | 1329 | err = mlx5_core_create_tir(mdev, in, inlen, &priv->tirn[tt]); |
Amir Vadai | f62b8bb8 | 2015-05-28 22:28:48 +0300 | [diff] [blame] | 1330 | |
| 1331 | kvfree(in); |
| 1332 | |
| 1333 | return err; |
| 1334 | } |
| 1335 | |
| 1336 | static void mlx5e_close_tir(struct mlx5e_priv *priv, int tt) |
| 1337 | { |
Haggai Abramonvsky | 7db22ff | 2015-06-04 19:30:37 +0300 | [diff] [blame^] | 1338 | mlx5_core_destroy_tir(priv->mdev, priv->tirn[tt]); |
Amir Vadai | f62b8bb8 | 2015-05-28 22:28:48 +0300 | [diff] [blame] | 1339 | } |
| 1340 | |
| 1341 | static int mlx5e_open_tirs(struct mlx5e_priv *priv) |
| 1342 | { |
| 1343 | int err; |
| 1344 | int i; |
| 1345 | |
| 1346 | for (i = 0; i < MLX5E_NUM_TT; i++) { |
| 1347 | err = mlx5e_open_tir(priv, i); |
| 1348 | if (err) |
| 1349 | goto err_close_tirs; |
| 1350 | } |
| 1351 | |
| 1352 | return 0; |
| 1353 | |
| 1354 | err_close_tirs: |
| 1355 | for (i--; i >= 0; i--) |
| 1356 | mlx5e_close_tir(priv, i); |
| 1357 | |
| 1358 | return err; |
| 1359 | } |
| 1360 | |
| 1361 | static void mlx5e_close_tirs(struct mlx5e_priv *priv) |
| 1362 | { |
| 1363 | int i; |
| 1364 | |
| 1365 | for (i = 0; i < MLX5E_NUM_TT; i++) |
| 1366 | mlx5e_close_tir(priv, i); |
| 1367 | } |
| 1368 | |
| 1369 | int mlx5e_open_locked(struct net_device *netdev) |
| 1370 | { |
| 1371 | struct mlx5e_priv *priv = netdev_priv(netdev); |
| 1372 | struct mlx5_core_dev *mdev = priv->mdev; |
| 1373 | int actual_mtu; |
| 1374 | int num_txqs; |
| 1375 | int err; |
| 1376 | |
| 1377 | num_txqs = roundup_pow_of_two(priv->params.num_channels) * |
| 1378 | priv->params.num_tc; |
| 1379 | netif_set_real_num_tx_queues(netdev, num_txqs); |
| 1380 | netif_set_real_num_rx_queues(netdev, priv->params.num_channels); |
| 1381 | |
| 1382 | err = mlx5_set_port_mtu(mdev, netdev->mtu); |
| 1383 | if (err) { |
| 1384 | netdev_err(netdev, "%s: mlx5_set_port_mtu failed %d\n", |
| 1385 | __func__, err); |
| 1386 | return err; |
| 1387 | } |
| 1388 | |
| 1389 | err = mlx5_query_port_oper_mtu(mdev, &actual_mtu); |
| 1390 | if (err) { |
| 1391 | netdev_err(netdev, "%s: mlx5_query_port_oper_mtu failed %d\n", |
| 1392 | __func__, err); |
| 1393 | return err; |
| 1394 | } |
| 1395 | |
| 1396 | if (actual_mtu != netdev->mtu) |
| 1397 | netdev_warn(netdev, "%s: Failed to set MTU to %d\n", |
| 1398 | __func__, netdev->mtu); |
| 1399 | |
| 1400 | netdev->mtu = actual_mtu; |
| 1401 | |
| 1402 | err = mlx5e_open_tises(priv); |
| 1403 | if (err) { |
| 1404 | netdev_err(netdev, "%s: mlx5e_open_tises failed, %d\n", |
| 1405 | __func__, err); |
| 1406 | return err; |
| 1407 | } |
| 1408 | |
| 1409 | err = mlx5e_open_channels(priv); |
| 1410 | if (err) { |
| 1411 | netdev_err(netdev, "%s: mlx5e_open_channels failed, %d\n", |
| 1412 | __func__, err); |
| 1413 | goto err_close_tises; |
| 1414 | } |
| 1415 | |
| 1416 | err = mlx5e_open_rqt(priv); |
| 1417 | if (err) { |
| 1418 | netdev_err(netdev, "%s: mlx5e_open_rqt failed, %d\n", |
| 1419 | __func__, err); |
| 1420 | goto err_close_channels; |
| 1421 | } |
| 1422 | |
| 1423 | err = mlx5e_open_tirs(priv); |
| 1424 | if (err) { |
| 1425 | netdev_err(netdev, "%s: mlx5e_open_tir failed, %d\n", |
| 1426 | __func__, err); |
| 1427 | goto err_close_rqls; |
| 1428 | } |
| 1429 | |
| 1430 | err = mlx5e_open_flow_table(priv); |
| 1431 | if (err) { |
| 1432 | netdev_err(netdev, "%s: mlx5e_open_flow_table failed, %d\n", |
| 1433 | __func__, err); |
| 1434 | goto err_close_tirs; |
| 1435 | } |
| 1436 | |
| 1437 | err = mlx5e_add_all_vlan_rules(priv); |
| 1438 | if (err) { |
| 1439 | netdev_err(netdev, "%s: mlx5e_add_all_vlan_rules failed, %d\n", |
| 1440 | __func__, err); |
| 1441 | goto err_close_flow_table; |
| 1442 | } |
| 1443 | |
| 1444 | mlx5e_init_eth_addr(priv); |
| 1445 | |
| 1446 | set_bit(MLX5E_STATE_OPENED, &priv->state); |
| 1447 | |
| 1448 | mlx5e_update_carrier(priv); |
| 1449 | mlx5e_set_rx_mode_core(priv); |
| 1450 | |
| 1451 | schedule_delayed_work(&priv->update_stats_work, 0); |
| 1452 | return 0; |
| 1453 | |
| 1454 | err_close_flow_table: |
| 1455 | mlx5e_close_flow_table(priv); |
| 1456 | |
| 1457 | err_close_tirs: |
| 1458 | mlx5e_close_tirs(priv); |
| 1459 | |
| 1460 | err_close_rqls: |
| 1461 | mlx5e_close_rqt(priv); |
| 1462 | |
| 1463 | err_close_channels: |
| 1464 | mlx5e_close_channels(priv); |
| 1465 | |
| 1466 | err_close_tises: |
| 1467 | mlx5e_close_tises(priv); |
| 1468 | |
| 1469 | return err; |
| 1470 | } |
| 1471 | |
| 1472 | static int mlx5e_open(struct net_device *netdev) |
| 1473 | { |
| 1474 | struct mlx5e_priv *priv = netdev_priv(netdev); |
| 1475 | int err; |
| 1476 | |
| 1477 | mutex_lock(&priv->state_lock); |
| 1478 | err = mlx5e_open_locked(netdev); |
| 1479 | mutex_unlock(&priv->state_lock); |
| 1480 | |
| 1481 | return err; |
| 1482 | } |
| 1483 | |
| 1484 | int mlx5e_close_locked(struct net_device *netdev) |
| 1485 | { |
| 1486 | struct mlx5e_priv *priv = netdev_priv(netdev); |
| 1487 | |
| 1488 | clear_bit(MLX5E_STATE_OPENED, &priv->state); |
| 1489 | |
| 1490 | mlx5e_set_rx_mode_core(priv); |
| 1491 | mlx5e_del_all_vlan_rules(priv); |
| 1492 | netif_carrier_off(priv->netdev); |
| 1493 | mlx5e_close_flow_table(priv); |
| 1494 | mlx5e_close_tirs(priv); |
| 1495 | mlx5e_close_rqt(priv); |
| 1496 | mlx5e_close_channels(priv); |
| 1497 | mlx5e_close_tises(priv); |
| 1498 | |
| 1499 | return 0; |
| 1500 | } |
| 1501 | |
| 1502 | static int mlx5e_close(struct net_device *netdev) |
| 1503 | { |
| 1504 | struct mlx5e_priv *priv = netdev_priv(netdev); |
| 1505 | int err; |
| 1506 | |
| 1507 | mutex_lock(&priv->state_lock); |
| 1508 | err = mlx5e_close_locked(netdev); |
| 1509 | mutex_unlock(&priv->state_lock); |
| 1510 | |
| 1511 | return err; |
| 1512 | } |
| 1513 | |
| 1514 | int mlx5e_update_priv_params(struct mlx5e_priv *priv, |
| 1515 | struct mlx5e_params *new_params) |
| 1516 | { |
| 1517 | int err = 0; |
| 1518 | int was_opened; |
| 1519 | |
| 1520 | WARN_ON(!mutex_is_locked(&priv->state_lock)); |
| 1521 | |
| 1522 | was_opened = test_bit(MLX5E_STATE_OPENED, &priv->state); |
| 1523 | if (was_opened) |
| 1524 | mlx5e_close_locked(priv->netdev); |
| 1525 | |
| 1526 | priv->params = *new_params; |
| 1527 | |
| 1528 | if (was_opened) |
| 1529 | err = mlx5e_open_locked(priv->netdev); |
| 1530 | |
| 1531 | return err; |
| 1532 | } |
| 1533 | |
| 1534 | static struct rtnl_link_stats64 * |
| 1535 | mlx5e_get_stats(struct net_device *dev, struct rtnl_link_stats64 *stats) |
| 1536 | { |
| 1537 | struct mlx5e_priv *priv = netdev_priv(dev); |
| 1538 | struct mlx5e_vport_stats *vstats = &priv->stats.vport; |
| 1539 | |
| 1540 | stats->rx_packets = vstats->rx_packets; |
| 1541 | stats->rx_bytes = vstats->rx_bytes; |
| 1542 | stats->tx_packets = vstats->tx_packets; |
| 1543 | stats->tx_bytes = vstats->tx_bytes; |
| 1544 | stats->multicast = vstats->rx_multicast_packets + |
| 1545 | vstats->tx_multicast_packets; |
| 1546 | stats->tx_errors = vstats->tx_error_packets; |
| 1547 | stats->rx_errors = vstats->rx_error_packets; |
| 1548 | stats->tx_dropped = vstats->tx_queue_dropped; |
| 1549 | stats->rx_crc_errors = 0; |
| 1550 | stats->rx_length_errors = 0; |
| 1551 | |
| 1552 | return stats; |
| 1553 | } |
| 1554 | |
| 1555 | static void mlx5e_set_rx_mode(struct net_device *dev) |
| 1556 | { |
| 1557 | struct mlx5e_priv *priv = netdev_priv(dev); |
| 1558 | |
| 1559 | schedule_work(&priv->set_rx_mode_work); |
| 1560 | } |
| 1561 | |
| 1562 | static int mlx5e_set_mac(struct net_device *netdev, void *addr) |
| 1563 | { |
| 1564 | struct mlx5e_priv *priv = netdev_priv(netdev); |
| 1565 | struct sockaddr *saddr = addr; |
| 1566 | |
| 1567 | if (!is_valid_ether_addr(saddr->sa_data)) |
| 1568 | return -EADDRNOTAVAIL; |
| 1569 | |
| 1570 | netif_addr_lock_bh(netdev); |
| 1571 | ether_addr_copy(netdev->dev_addr, saddr->sa_data); |
| 1572 | netif_addr_unlock_bh(netdev); |
| 1573 | |
| 1574 | schedule_work(&priv->set_rx_mode_work); |
| 1575 | |
| 1576 | return 0; |
| 1577 | } |
| 1578 | |
| 1579 | static int mlx5e_set_features(struct net_device *netdev, |
| 1580 | netdev_features_t features) |
| 1581 | { |
| 1582 | struct mlx5e_priv *priv = netdev_priv(netdev); |
| 1583 | netdev_features_t changes = features ^ netdev->features; |
| 1584 | struct mlx5e_params new_params; |
| 1585 | bool update_params = false; |
| 1586 | |
| 1587 | mutex_lock(&priv->state_lock); |
| 1588 | new_params = priv->params; |
| 1589 | |
| 1590 | if (changes & NETIF_F_LRO) { |
| 1591 | new_params.lro_en = !!(features & NETIF_F_LRO); |
| 1592 | update_params = true; |
| 1593 | } |
| 1594 | |
| 1595 | if (update_params) |
| 1596 | mlx5e_update_priv_params(priv, &new_params); |
| 1597 | |
| 1598 | if (changes & NETIF_F_HW_VLAN_CTAG_FILTER) { |
| 1599 | if (features & NETIF_F_HW_VLAN_CTAG_FILTER) |
| 1600 | mlx5e_enable_vlan_filter(priv); |
| 1601 | else |
| 1602 | mlx5e_disable_vlan_filter(priv); |
| 1603 | } |
| 1604 | |
| 1605 | mutex_unlock(&priv->state_lock); |
| 1606 | |
| 1607 | return 0; |
| 1608 | } |
| 1609 | |
| 1610 | static int mlx5e_change_mtu(struct net_device *netdev, int new_mtu) |
| 1611 | { |
| 1612 | struct mlx5e_priv *priv = netdev_priv(netdev); |
| 1613 | struct mlx5_core_dev *mdev = priv->mdev; |
| 1614 | int max_mtu; |
| 1615 | int err = 0; |
| 1616 | |
| 1617 | err = mlx5_query_port_max_mtu(mdev, &max_mtu); |
| 1618 | if (err) |
| 1619 | return err; |
| 1620 | |
| 1621 | if (new_mtu > max_mtu || new_mtu < MLX5E_PARAMS_MIN_MTU) { |
| 1622 | netdev_err(netdev, "%s: Bad MTU size, mtu must be [%d-%d]\n", |
| 1623 | __func__, MLX5E_PARAMS_MIN_MTU, max_mtu); |
| 1624 | return -EINVAL; |
| 1625 | } |
| 1626 | |
| 1627 | mutex_lock(&priv->state_lock); |
| 1628 | netdev->mtu = new_mtu; |
| 1629 | err = mlx5e_update_priv_params(priv, &priv->params); |
| 1630 | mutex_unlock(&priv->state_lock); |
| 1631 | |
| 1632 | return err; |
| 1633 | } |
| 1634 | |
| 1635 | static struct net_device_ops mlx5e_netdev_ops = { |
| 1636 | .ndo_open = mlx5e_open, |
| 1637 | .ndo_stop = mlx5e_close, |
| 1638 | .ndo_start_xmit = mlx5e_xmit, |
| 1639 | .ndo_get_stats64 = mlx5e_get_stats, |
| 1640 | .ndo_set_rx_mode = mlx5e_set_rx_mode, |
| 1641 | .ndo_set_mac_address = mlx5e_set_mac, |
| 1642 | .ndo_vlan_rx_add_vid = mlx5e_vlan_rx_add_vid, |
| 1643 | .ndo_vlan_rx_kill_vid = mlx5e_vlan_rx_kill_vid, |
| 1644 | .ndo_set_features = mlx5e_set_features, |
| 1645 | .ndo_change_mtu = mlx5e_change_mtu, |
| 1646 | }; |
| 1647 | |
| 1648 | static int mlx5e_check_required_hca_cap(struct mlx5_core_dev *mdev) |
| 1649 | { |
| 1650 | if (MLX5_CAP_GEN(mdev, port_type) != MLX5_CAP_PORT_TYPE_ETH) |
| 1651 | return -ENOTSUPP; |
| 1652 | if (!MLX5_CAP_GEN(mdev, eth_net_offloads) || |
| 1653 | !MLX5_CAP_GEN(mdev, nic_flow_table) || |
| 1654 | !MLX5_CAP_ETH(mdev, csum_cap) || |
| 1655 | !MLX5_CAP_ETH(mdev, max_lso_cap) || |
| 1656 | !MLX5_CAP_ETH(mdev, vlan_cap) || |
| 1657 | !MLX5_CAP_ETH(mdev, rss_ind_tbl_cap)) { |
| 1658 | mlx5_core_warn(mdev, |
| 1659 | "Not creating net device, some required device capabilities are missing\n"); |
| 1660 | return -ENOTSUPP; |
| 1661 | } |
| 1662 | return 0; |
| 1663 | } |
| 1664 | |
| 1665 | static void mlx5e_build_netdev_priv(struct mlx5_core_dev *mdev, |
| 1666 | struct net_device *netdev, |
| 1667 | int num_comp_vectors) |
| 1668 | { |
| 1669 | struct mlx5e_priv *priv = netdev_priv(netdev); |
| 1670 | |
| 1671 | priv->params.log_sq_size = |
| 1672 | MLX5E_PARAMS_DEFAULT_LOG_SQ_SIZE; |
| 1673 | priv->params.log_rq_size = |
| 1674 | MLX5E_PARAMS_DEFAULT_LOG_RQ_SIZE; |
| 1675 | priv->params.rx_cq_moderation_usec = |
| 1676 | MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_USEC; |
| 1677 | priv->params.rx_cq_moderation_pkts = |
| 1678 | MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_PKTS; |
| 1679 | priv->params.tx_cq_moderation_usec = |
| 1680 | MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_USEC; |
| 1681 | priv->params.tx_cq_moderation_pkts = |
| 1682 | MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_PKTS; |
| 1683 | priv->params.min_rx_wqes = |
| 1684 | MLX5E_PARAMS_DEFAULT_MIN_RX_WQES; |
| 1685 | priv->params.rx_hash_log_tbl_sz = |
| 1686 | (order_base_2(num_comp_vectors) > |
| 1687 | MLX5E_PARAMS_DEFAULT_RX_HASH_LOG_TBL_SZ) ? |
| 1688 | order_base_2(num_comp_vectors) : |
| 1689 | MLX5E_PARAMS_DEFAULT_RX_HASH_LOG_TBL_SZ; |
| 1690 | priv->params.num_tc = 1; |
| 1691 | priv->params.default_vlan_prio = 0; |
| 1692 | |
| 1693 | priv->params.lro_en = false && !!MLX5_CAP_ETH(priv->mdev, lro_cap); |
| 1694 | priv->params.lro_wqe_sz = |
| 1695 | MLX5E_PARAMS_DEFAULT_LRO_WQE_SZ; |
| 1696 | |
| 1697 | priv->mdev = mdev; |
| 1698 | priv->netdev = netdev; |
| 1699 | priv->params.num_channels = num_comp_vectors; |
| 1700 | priv->order_base_2_num_channels = order_base_2(num_comp_vectors); |
| 1701 | priv->queue_mapping_channel_mask = |
| 1702 | roundup_pow_of_two(num_comp_vectors) - 1; |
| 1703 | priv->num_tc = priv->params.num_tc; |
| 1704 | priv->default_vlan_prio = priv->params.default_vlan_prio; |
| 1705 | |
| 1706 | spin_lock_init(&priv->async_events_spinlock); |
| 1707 | mutex_init(&priv->state_lock); |
| 1708 | |
| 1709 | INIT_WORK(&priv->update_carrier_work, mlx5e_update_carrier_work); |
| 1710 | INIT_WORK(&priv->set_rx_mode_work, mlx5e_set_rx_mode_work); |
| 1711 | INIT_DELAYED_WORK(&priv->update_stats_work, mlx5e_update_stats_work); |
| 1712 | } |
| 1713 | |
| 1714 | static void mlx5e_set_netdev_dev_addr(struct net_device *netdev) |
| 1715 | { |
| 1716 | struct mlx5e_priv *priv = netdev_priv(netdev); |
| 1717 | |
| 1718 | mlx5_query_vport_mac_address(priv->mdev, netdev->dev_addr); |
| 1719 | } |
| 1720 | |
| 1721 | static void mlx5e_build_netdev(struct net_device *netdev) |
| 1722 | { |
| 1723 | struct mlx5e_priv *priv = netdev_priv(netdev); |
| 1724 | struct mlx5_core_dev *mdev = priv->mdev; |
| 1725 | |
| 1726 | SET_NETDEV_DEV(netdev, &mdev->pdev->dev); |
| 1727 | |
| 1728 | if (priv->num_tc > 1) { |
| 1729 | mlx5e_netdev_ops.ndo_select_queue = mlx5e_select_queue; |
| 1730 | mlx5e_netdev_ops.ndo_start_xmit = mlx5e_xmit_multi_tc; |
| 1731 | } |
| 1732 | |
| 1733 | netdev->netdev_ops = &mlx5e_netdev_ops; |
| 1734 | netdev->watchdog_timeo = 15 * HZ; |
| 1735 | |
| 1736 | netdev->ethtool_ops = &mlx5e_ethtool_ops; |
| 1737 | |
| 1738 | netdev->vlan_features |= NETIF_F_IP_CSUM; |
| 1739 | netdev->vlan_features |= NETIF_F_IPV6_CSUM; |
| 1740 | netdev->vlan_features |= NETIF_F_GRO; |
| 1741 | netdev->vlan_features |= NETIF_F_TSO; |
| 1742 | netdev->vlan_features |= NETIF_F_TSO6; |
| 1743 | netdev->vlan_features |= NETIF_F_RXCSUM; |
| 1744 | netdev->vlan_features |= NETIF_F_RXHASH; |
| 1745 | |
| 1746 | if (!!MLX5_CAP_ETH(mdev, lro_cap)) |
| 1747 | netdev->vlan_features |= NETIF_F_LRO; |
| 1748 | |
| 1749 | netdev->hw_features = netdev->vlan_features; |
| 1750 | netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_TX; |
| 1751 | netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_RX; |
| 1752 | netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_FILTER; |
| 1753 | |
| 1754 | netdev->features = netdev->hw_features; |
| 1755 | if (!priv->params.lro_en) |
| 1756 | netdev->features &= ~NETIF_F_LRO; |
| 1757 | |
| 1758 | netdev->features |= NETIF_F_HIGHDMA; |
| 1759 | |
| 1760 | netdev->priv_flags |= IFF_UNICAST_FLT; |
| 1761 | |
| 1762 | mlx5e_set_netdev_dev_addr(netdev); |
| 1763 | } |
| 1764 | |
| 1765 | static int mlx5e_create_mkey(struct mlx5e_priv *priv, u32 pdn, |
| 1766 | struct mlx5_core_mr *mr) |
| 1767 | { |
| 1768 | struct mlx5_core_dev *mdev = priv->mdev; |
| 1769 | struct mlx5_create_mkey_mbox_in *in; |
| 1770 | int err; |
| 1771 | |
| 1772 | in = mlx5_vzalloc(sizeof(*in)); |
| 1773 | if (!in) |
| 1774 | return -ENOMEM; |
| 1775 | |
| 1776 | in->seg.flags = MLX5_PERM_LOCAL_WRITE | |
| 1777 | MLX5_PERM_LOCAL_READ | |
| 1778 | MLX5_ACCESS_MODE_PA; |
| 1779 | in->seg.flags_pd = cpu_to_be32(pdn | MLX5_MKEY_LEN64); |
| 1780 | in->seg.qpn_mkey7_0 = cpu_to_be32(0xffffff << 8); |
| 1781 | |
| 1782 | err = mlx5_core_create_mkey(mdev, mr, in, sizeof(*in), NULL, NULL, |
| 1783 | NULL); |
| 1784 | |
| 1785 | kvfree(in); |
| 1786 | |
| 1787 | return err; |
| 1788 | } |
| 1789 | |
| 1790 | static void *mlx5e_create_netdev(struct mlx5_core_dev *mdev) |
| 1791 | { |
| 1792 | struct net_device *netdev; |
| 1793 | struct mlx5e_priv *priv; |
| 1794 | int ncv = mdev->priv.eq_table.num_comp_vectors; |
| 1795 | int err; |
| 1796 | |
| 1797 | if (mlx5e_check_required_hca_cap(mdev)) |
| 1798 | return NULL; |
| 1799 | |
| 1800 | netdev = alloc_etherdev_mqs(sizeof(struct mlx5e_priv), |
| 1801 | roundup_pow_of_two(ncv) * MLX5E_MAX_NUM_TC, |
| 1802 | ncv); |
| 1803 | if (!netdev) { |
| 1804 | mlx5_core_err(mdev, "alloc_etherdev_mqs() failed\n"); |
| 1805 | return NULL; |
| 1806 | } |
| 1807 | |
| 1808 | mlx5e_build_netdev_priv(mdev, netdev, ncv); |
| 1809 | mlx5e_build_netdev(netdev); |
| 1810 | |
| 1811 | netif_carrier_off(netdev); |
| 1812 | |
| 1813 | priv = netdev_priv(netdev); |
| 1814 | |
| 1815 | err = mlx5_alloc_map_uar(mdev, &priv->cq_uar); |
| 1816 | if (err) { |
| 1817 | netdev_err(netdev, "%s: mlx5_alloc_map_uar failed, %d\n", |
| 1818 | __func__, err); |
| 1819 | goto err_free_netdev; |
| 1820 | } |
| 1821 | |
| 1822 | err = mlx5_core_alloc_pd(mdev, &priv->pdn); |
| 1823 | if (err) { |
| 1824 | netdev_err(netdev, "%s: mlx5_core_alloc_pd failed, %d\n", |
| 1825 | __func__, err); |
| 1826 | goto err_unmap_free_uar; |
| 1827 | } |
| 1828 | |
| 1829 | err = mlx5e_create_mkey(priv, priv->pdn, &priv->mr); |
| 1830 | if (err) { |
| 1831 | netdev_err(netdev, "%s: mlx5e_create_mkey failed, %d\n", |
| 1832 | __func__, err); |
| 1833 | goto err_dealloc_pd; |
| 1834 | } |
| 1835 | |
| 1836 | err = register_netdev(netdev); |
| 1837 | if (err) { |
| 1838 | netdev_err(netdev, "%s: register_netdev failed, %d\n", |
| 1839 | __func__, err); |
| 1840 | goto err_destroy_mkey; |
| 1841 | } |
| 1842 | |
| 1843 | mlx5e_enable_async_events(priv); |
| 1844 | |
| 1845 | return priv; |
| 1846 | |
| 1847 | err_destroy_mkey: |
| 1848 | mlx5_core_destroy_mkey(mdev, &priv->mr); |
| 1849 | |
| 1850 | err_dealloc_pd: |
| 1851 | mlx5_core_dealloc_pd(mdev, priv->pdn); |
| 1852 | |
| 1853 | err_unmap_free_uar: |
| 1854 | mlx5_unmap_free_uar(mdev, &priv->cq_uar); |
| 1855 | |
| 1856 | err_free_netdev: |
| 1857 | free_netdev(netdev); |
| 1858 | |
| 1859 | return NULL; |
| 1860 | } |
| 1861 | |
| 1862 | static void mlx5e_destroy_netdev(struct mlx5_core_dev *mdev, void *vpriv) |
| 1863 | { |
| 1864 | struct mlx5e_priv *priv = vpriv; |
| 1865 | struct net_device *netdev = priv->netdev; |
| 1866 | |
| 1867 | unregister_netdev(netdev); |
| 1868 | mlx5_core_destroy_mkey(priv->mdev, &priv->mr); |
| 1869 | mlx5_core_dealloc_pd(priv->mdev, priv->pdn); |
| 1870 | mlx5_unmap_free_uar(priv->mdev, &priv->cq_uar); |
| 1871 | mlx5e_disable_async_events(priv); |
| 1872 | flush_scheduled_work(); |
| 1873 | free_netdev(netdev); |
| 1874 | } |
| 1875 | |
| 1876 | static void *mlx5e_get_netdev(void *vpriv) |
| 1877 | { |
| 1878 | struct mlx5e_priv *priv = vpriv; |
| 1879 | |
| 1880 | return priv->netdev; |
| 1881 | } |
| 1882 | |
| 1883 | static struct mlx5_interface mlx5e_interface = { |
| 1884 | .add = mlx5e_create_netdev, |
| 1885 | .remove = mlx5e_destroy_netdev, |
| 1886 | .event = mlx5e_async_event, |
| 1887 | .protocol = MLX5_INTERFACE_PROTOCOL_ETH, |
| 1888 | .get_dev = mlx5e_get_netdev, |
| 1889 | }; |
| 1890 | |
| 1891 | void mlx5e_init(void) |
| 1892 | { |
| 1893 | mlx5_register_interface(&mlx5e_interface); |
| 1894 | } |
| 1895 | |
| 1896 | void mlx5e_cleanup(void) |
| 1897 | { |
| 1898 | mlx5_unregister_interface(&mlx5e_interface); |
| 1899 | } |