1 // SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB 2 /* Copyright (c) 2020 Mellanox Technologies. */ 3 4 #include <linux/netdevice.h> 5 #include <linux/if_macvlan.h> 6 #include <linux/list.h> 7 #include <linux/rculist.h> 8 #include <linux/rtnetlink.h> 9 #include <linux/workqueue.h> 10 #include <linux/spinlock.h> 11 #include "tc.h" 12 #include "neigh.h" 13 #include "en_rep.h" 14 #include "eswitch.h" 15 #include "lib/fs_chains.h" 16 #include "en/tc_ct.h" 17 #include "en/mapping.h" 18 #include "en/tc_tun.h" 19 #include "lib/port_tun.h" 20 #include "en/tc/sample.h" 21 #include "en_accel/ipsec_rxtx.h" 22 #include "en/tc/int_port.h" 23 #include "en/tc/act/act.h" 24 25 struct mlx5e_rep_indr_block_priv { 26 struct net_device *netdev; 27 struct mlx5e_rep_priv *rpriv; 28 enum flow_block_binder_type binder_type; 29 30 struct list_head list; 31 }; 32 33 int mlx5e_rep_encap_entry_attach(struct mlx5e_priv *priv, 34 struct mlx5e_encap_entry *e, 35 struct mlx5e_neigh *m_neigh, 36 struct net_device *neigh_dev) 37 { 38 struct mlx5e_rep_priv *rpriv = priv->ppriv; 39 struct mlx5_rep_uplink_priv *uplink_priv = &rpriv->uplink_priv; 40 struct mlx5_tun_entropy *tun_entropy = &uplink_priv->tun_entropy; 41 struct mlx5e_neigh_hash_entry *nhe; 42 int err; 43 44 err = mlx5_tun_entropy_refcount_inc(tun_entropy, e->reformat_type); 45 if (err) 46 return err; 47 48 mutex_lock(&rpriv->neigh_update.encap_lock); 49 nhe = mlx5e_rep_neigh_entry_lookup(priv, m_neigh); 50 if (!nhe) { 51 err = mlx5e_rep_neigh_entry_create(priv, m_neigh, neigh_dev, &nhe); 52 if (err) { 53 mutex_unlock(&rpriv->neigh_update.encap_lock); 54 mlx5_tun_entropy_refcount_dec(tun_entropy, 55 e->reformat_type); 56 return err; 57 } 58 } 59 60 e->nhe = nhe; 61 spin_lock(&nhe->encap_list_lock); 62 list_add_rcu(&e->encap_list, &nhe->encap_list); 63 spin_unlock(&nhe->encap_list_lock); 64 65 mutex_unlock(&rpriv->neigh_update.encap_lock); 66 67 return 0; 68 } 69 70 void mlx5e_rep_encap_entry_detach(struct mlx5e_priv *priv, 71 struct mlx5e_encap_entry *e) 72 { 73 struct mlx5e_rep_priv *rpriv = priv->ppriv; 74 struct mlx5_rep_uplink_priv *uplink_priv = &rpriv->uplink_priv; 75 struct mlx5_tun_entropy *tun_entropy = &uplink_priv->tun_entropy; 76 77 if (!e->nhe) 78 return; 79 80 spin_lock(&e->nhe->encap_list_lock); 81 list_del_rcu(&e->encap_list); 82 spin_unlock(&e->nhe->encap_list_lock); 83 84 mlx5e_rep_neigh_entry_release(e->nhe); 85 e->nhe = NULL; 86 mlx5_tun_entropy_refcount_dec(tun_entropy, e->reformat_type); 87 } 88 89 void mlx5e_rep_update_flows(struct mlx5e_priv *priv, 90 struct mlx5e_encap_entry *e, 91 bool neigh_connected, 92 unsigned char ha[ETH_ALEN]) 93 { 94 struct ethhdr *eth = (struct ethhdr *)e->encap_header; 95 struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; 96 bool encap_connected; 97 LIST_HEAD(flow_list); 98 99 ASSERT_RTNL(); 100 101 mutex_lock(&esw->offloads.encap_tbl_lock); 102 encap_connected = !!(e->flags & MLX5_ENCAP_ENTRY_VALID); 103 if (encap_connected == neigh_connected && ether_addr_equal(e->h_dest, ha)) 104 goto unlock; 105 106 mlx5e_take_all_encap_flows(e, &flow_list); 107 108 if ((e->flags & MLX5_ENCAP_ENTRY_VALID) && 109 (!neigh_connected || !ether_addr_equal(e->h_dest, ha))) 110 mlx5e_tc_encap_flows_del(priv, e, &flow_list); 111 112 if (neigh_connected && !(e->flags & MLX5_ENCAP_ENTRY_VALID)) { 113 struct net_device *route_dev; 114 115 ether_addr_copy(e->h_dest, ha); 116 ether_addr_copy(eth->h_dest, ha); 117 /* Update the encap source mac, in case that we delete 118 * the flows when encap source mac changed. 119 */ 120 route_dev = __dev_get_by_index(dev_net(priv->netdev), e->route_dev_ifindex); 121 if (route_dev) 122 ether_addr_copy(eth->h_source, route_dev->dev_addr); 123 124 mlx5e_tc_encap_flows_add(priv, e, &flow_list); 125 } 126 unlock: 127 mutex_unlock(&esw->offloads.encap_tbl_lock); 128 mlx5e_put_flow_list(priv, &flow_list); 129 } 130 131 static int 132 mlx5e_rep_setup_tc_cls_flower(struct mlx5e_priv *priv, 133 struct flow_cls_offload *cls_flower, int flags) 134 { 135 switch (cls_flower->command) { 136 case FLOW_CLS_REPLACE: 137 return mlx5e_configure_flower(priv->netdev, priv, cls_flower, 138 flags); 139 case FLOW_CLS_DESTROY: 140 return mlx5e_delete_flower(priv->netdev, priv, cls_flower, 141 flags); 142 case FLOW_CLS_STATS: 143 return mlx5e_stats_flower(priv->netdev, priv, cls_flower, 144 flags); 145 default: 146 return -EOPNOTSUPP; 147 } 148 } 149 150 static 151 int mlx5e_rep_setup_tc_cls_matchall(struct mlx5e_priv *priv, 152 struct tc_cls_matchall_offload *ma) 153 { 154 switch (ma->command) { 155 case TC_CLSMATCHALL_REPLACE: 156 return mlx5e_tc_configure_matchall(priv, ma); 157 case TC_CLSMATCHALL_DESTROY: 158 return mlx5e_tc_delete_matchall(priv, ma); 159 case TC_CLSMATCHALL_STATS: 160 mlx5e_tc_stats_matchall(priv, ma); 161 return 0; 162 default: 163 return -EOPNOTSUPP; 164 } 165 } 166 167 static int mlx5e_rep_setup_tc_cb(enum tc_setup_type type, void *type_data, 168 void *cb_priv) 169 { 170 unsigned long flags = MLX5_TC_FLAG(INGRESS) | MLX5_TC_FLAG(ESW_OFFLOAD); 171 struct mlx5e_priv *priv = cb_priv; 172 173 if (!priv->netdev || !netif_device_present(priv->netdev)) 174 return -EOPNOTSUPP; 175 176 switch (type) { 177 case TC_SETUP_CLSFLOWER: 178 return mlx5e_rep_setup_tc_cls_flower(priv, type_data, flags); 179 case TC_SETUP_CLSMATCHALL: 180 return mlx5e_rep_setup_tc_cls_matchall(priv, type_data); 181 default: 182 return -EOPNOTSUPP; 183 } 184 } 185 186 static int mlx5e_rep_setup_ft_cb(enum tc_setup_type type, void *type_data, 187 void *cb_priv) 188 { 189 struct flow_cls_offload tmp, *f = type_data; 190 struct mlx5e_priv *priv = cb_priv; 191 struct mlx5_eswitch *esw; 192 unsigned long flags; 193 int err; 194 195 flags = MLX5_TC_FLAG(INGRESS) | 196 MLX5_TC_FLAG(ESW_OFFLOAD) | 197 MLX5_TC_FLAG(FT_OFFLOAD); 198 esw = priv->mdev->priv.eswitch; 199 200 switch (type) { 201 case TC_SETUP_CLSFLOWER: 202 memcpy(&tmp, f, sizeof(*f)); 203 204 if (!mlx5_chains_prios_supported(esw_chains(esw))) 205 return -EOPNOTSUPP; 206 207 /* Re-use tc offload path by moving the ft flow to the 208 * reserved ft chain. 209 * 210 * FT offload can use prio range [0, INT_MAX], so we normalize 211 * it to range [1, mlx5_esw_chains_get_prio_range(esw)] 212 * as with tc, where prio 0 isn't supported. 213 * 214 * We only support chain 0 of FT offload. 215 */ 216 if (tmp.common.prio >= mlx5_chains_get_prio_range(esw_chains(esw))) 217 return -EOPNOTSUPP; 218 if (tmp.common.chain_index != 0) 219 return -EOPNOTSUPP; 220 221 tmp.common.chain_index = mlx5_chains_get_nf_ft_chain(esw_chains(esw)); 222 tmp.common.prio++; 223 err = mlx5e_rep_setup_tc_cls_flower(priv, &tmp, flags); 224 memcpy(&f->stats, &tmp.stats, sizeof(f->stats)); 225 return err; 226 default: 227 return -EOPNOTSUPP; 228 } 229 } 230 231 static LIST_HEAD(mlx5e_rep_block_tc_cb_list); 232 static LIST_HEAD(mlx5e_rep_block_ft_cb_list); 233 int mlx5e_rep_setup_tc(struct net_device *dev, enum tc_setup_type type, 234 void *type_data) 235 { 236 struct mlx5e_priv *priv = netdev_priv(dev); 237 struct flow_block_offload *f = type_data; 238 239 f->unlocked_driver_cb = true; 240 241 switch (type) { 242 case TC_SETUP_BLOCK: 243 return flow_block_cb_setup_simple(type_data, 244 &mlx5e_rep_block_tc_cb_list, 245 mlx5e_rep_setup_tc_cb, 246 priv, priv, true); 247 case TC_SETUP_FT: 248 return flow_block_cb_setup_simple(type_data, 249 &mlx5e_rep_block_ft_cb_list, 250 mlx5e_rep_setup_ft_cb, 251 priv, priv, true); 252 default: 253 return -EOPNOTSUPP; 254 } 255 } 256 257 int mlx5e_rep_tc_init(struct mlx5e_rep_priv *rpriv) 258 { 259 struct mlx5_rep_uplink_priv *uplink_priv = &rpriv->uplink_priv; 260 int err; 261 262 mutex_init(&uplink_priv->unready_flows_lock); 263 INIT_LIST_HEAD(&uplink_priv->unready_flows); 264 265 /* init shared tc flow table */ 266 err = mlx5e_tc_esw_init(uplink_priv); 267 return err; 268 } 269 270 void mlx5e_rep_tc_cleanup(struct mlx5e_rep_priv *rpriv) 271 { 272 /* delete shared tc flow table */ 273 mlx5e_tc_esw_cleanup(&rpriv->uplink_priv); 274 mutex_destroy(&rpriv->uplink_priv.unready_flows_lock); 275 } 276 277 void mlx5e_rep_tc_enable(struct mlx5e_priv *priv) 278 { 279 struct mlx5e_rep_priv *rpriv = priv->ppriv; 280 281 INIT_WORK(&rpriv->uplink_priv.reoffload_flows_work, 282 mlx5e_tc_reoffload_flows_work); 283 } 284 285 void mlx5e_rep_tc_disable(struct mlx5e_priv *priv) 286 { 287 struct mlx5e_rep_priv *rpriv = priv->ppriv; 288 289 cancel_work_sync(&rpriv->uplink_priv.reoffload_flows_work); 290 } 291 292 int mlx5e_rep_tc_event_port_affinity(struct mlx5e_priv *priv) 293 { 294 struct mlx5e_rep_priv *rpriv = priv->ppriv; 295 296 queue_work(priv->wq, &rpriv->uplink_priv.reoffload_flows_work); 297 298 return NOTIFY_OK; 299 } 300 301 static struct mlx5e_rep_indr_block_priv * 302 mlx5e_rep_indr_block_priv_lookup(struct mlx5e_rep_priv *rpriv, 303 struct net_device *netdev, 304 enum flow_block_binder_type binder_type) 305 { 306 struct mlx5e_rep_indr_block_priv *cb_priv; 307 308 list_for_each_entry(cb_priv, 309 &rpriv->uplink_priv.tc_indr_block_priv_list, 310 list) 311 if (cb_priv->netdev == netdev && 312 cb_priv->binder_type == binder_type) 313 return cb_priv; 314 315 return NULL; 316 } 317 318 static int 319 mlx5e_rep_indr_offload(struct net_device *netdev, 320 struct flow_cls_offload *flower, 321 struct mlx5e_rep_indr_block_priv *indr_priv, 322 unsigned long flags) 323 { 324 struct mlx5e_priv *priv = netdev_priv(indr_priv->rpriv->netdev); 325 int err = 0; 326 327 if (!netif_device_present(indr_priv->rpriv->netdev)) 328 return -EOPNOTSUPP; 329 330 switch (flower->command) { 331 case FLOW_CLS_REPLACE: 332 err = mlx5e_configure_flower(netdev, priv, flower, flags); 333 break; 334 case FLOW_CLS_DESTROY: 335 err = mlx5e_delete_flower(netdev, priv, flower, flags); 336 break; 337 case FLOW_CLS_STATS: 338 err = mlx5e_stats_flower(netdev, priv, flower, flags); 339 break; 340 default: 341 err = -EOPNOTSUPP; 342 } 343 344 return err; 345 } 346 347 static int mlx5e_rep_indr_setup_tc_cb(enum tc_setup_type type, 348 void *type_data, void *indr_priv) 349 { 350 unsigned long flags = MLX5_TC_FLAG(ESW_OFFLOAD); 351 struct mlx5e_rep_indr_block_priv *priv = indr_priv; 352 353 flags |= (priv->binder_type == FLOW_BLOCK_BINDER_TYPE_CLSACT_EGRESS) ? 354 MLX5_TC_FLAG(EGRESS) : 355 MLX5_TC_FLAG(INGRESS); 356 357 switch (type) { 358 case TC_SETUP_CLSFLOWER: 359 return mlx5e_rep_indr_offload(priv->netdev, type_data, priv, 360 flags); 361 default: 362 return -EOPNOTSUPP; 363 } 364 } 365 366 static int mlx5e_rep_indr_setup_ft_cb(enum tc_setup_type type, 367 void *type_data, void *indr_priv) 368 { 369 struct mlx5e_rep_indr_block_priv *priv = indr_priv; 370 struct flow_cls_offload *f = type_data; 371 struct flow_cls_offload tmp; 372 struct mlx5e_priv *mpriv; 373 struct mlx5_eswitch *esw; 374 unsigned long flags; 375 int err; 376 377 mpriv = netdev_priv(priv->rpriv->netdev); 378 esw = mpriv->mdev->priv.eswitch; 379 380 flags = MLX5_TC_FLAG(EGRESS) | 381 MLX5_TC_FLAG(ESW_OFFLOAD) | 382 MLX5_TC_FLAG(FT_OFFLOAD); 383 384 switch (type) { 385 case TC_SETUP_CLSFLOWER: 386 memcpy(&tmp, f, sizeof(*f)); 387 388 /* Re-use tc offload path by moving the ft flow to the 389 * reserved ft chain. 390 * 391 * FT offload can use prio range [0, INT_MAX], so we normalize 392 * it to range [1, mlx5_esw_chains_get_prio_range(esw)] 393 * as with tc, where prio 0 isn't supported. 394 * 395 * We only support chain 0 of FT offload. 396 */ 397 if (!mlx5_chains_prios_supported(esw_chains(esw)) || 398 tmp.common.prio >= mlx5_chains_get_prio_range(esw_chains(esw)) || 399 tmp.common.chain_index) 400 return -EOPNOTSUPP; 401 402 tmp.common.chain_index = mlx5_chains_get_nf_ft_chain(esw_chains(esw)); 403 tmp.common.prio++; 404 err = mlx5e_rep_indr_offload(priv->netdev, &tmp, priv, flags); 405 memcpy(&f->stats, &tmp.stats, sizeof(f->stats)); 406 return err; 407 default: 408 return -EOPNOTSUPP; 409 } 410 } 411 412 static void mlx5e_rep_indr_block_unbind(void *cb_priv) 413 { 414 struct mlx5e_rep_indr_block_priv *indr_priv = cb_priv; 415 416 list_del(&indr_priv->list); 417 kfree(indr_priv); 418 } 419 420 static LIST_HEAD(mlx5e_block_cb_list); 421 422 static bool mlx5e_rep_macvlan_mode_supported(const struct net_device *dev) 423 { 424 struct macvlan_dev *macvlan = netdev_priv(dev); 425 426 return macvlan->mode == MACVLAN_MODE_PASSTHRU; 427 } 428 429 static bool 430 mlx5e_rep_check_indr_block_supported(struct mlx5e_rep_priv *rpriv, 431 struct net_device *netdev, 432 struct flow_block_offload *f) 433 { 434 struct mlx5e_priv *priv = netdev_priv(rpriv->netdev); 435 struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; 436 struct net_device *macvlan_real_dev; 437 438 if (f->binder_type != FLOW_BLOCK_BINDER_TYPE_CLSACT_INGRESS && 439 f->binder_type != FLOW_BLOCK_BINDER_TYPE_CLSACT_EGRESS) 440 return false; 441 442 if (mlx5e_tc_tun_device_to_offload(priv, netdev)) 443 return true; 444 445 if (is_vlan_dev(netdev) && vlan_dev_real_dev(netdev) == rpriv->netdev) 446 return true; 447 448 if (netif_is_macvlan(netdev)) { 449 if (!mlx5e_rep_macvlan_mode_supported(netdev)) { 450 netdev_warn(netdev, "Offloading ingress filter is supported only with macvlan passthru mode"); 451 return false; 452 } 453 454 macvlan_real_dev = macvlan_dev_real_dev(netdev); 455 456 if (macvlan_real_dev == rpriv->netdev) 457 return true; 458 if (netif_is_bond_master(macvlan_real_dev)) 459 return true; 460 } 461 462 if (netif_is_ovs_master(netdev) && f->binder_type == FLOW_BLOCK_BINDER_TYPE_CLSACT_EGRESS && 463 mlx5e_tc_int_port_supported(esw)) 464 return true; 465 466 return false; 467 } 468 469 static int 470 mlx5e_rep_indr_setup_block(struct net_device *netdev, struct Qdisc *sch, 471 struct mlx5e_rep_priv *rpriv, 472 struct flow_block_offload *f, 473 flow_setup_cb_t *setup_cb, 474 void *data, 475 void (*cleanup)(struct flow_block_cb *block_cb)) 476 { 477 struct mlx5e_rep_indr_block_priv *indr_priv; 478 struct flow_block_cb *block_cb; 479 480 if (!mlx5e_rep_check_indr_block_supported(rpriv, netdev, f)) 481 return -EOPNOTSUPP; 482 483 f->unlocked_driver_cb = true; 484 f->driver_block_list = &mlx5e_block_cb_list; 485 486 switch (f->command) { 487 case FLOW_BLOCK_BIND: 488 indr_priv = mlx5e_rep_indr_block_priv_lookup(rpriv, netdev, f->binder_type); 489 if (indr_priv) 490 return -EEXIST; 491 492 indr_priv = kmalloc(sizeof(*indr_priv), GFP_KERNEL); 493 if (!indr_priv) 494 return -ENOMEM; 495 496 indr_priv->netdev = netdev; 497 indr_priv->rpriv = rpriv; 498 indr_priv->binder_type = f->binder_type; 499 list_add(&indr_priv->list, 500 &rpriv->uplink_priv.tc_indr_block_priv_list); 501 502 block_cb = flow_indr_block_cb_alloc(setup_cb, indr_priv, indr_priv, 503 mlx5e_rep_indr_block_unbind, 504 f, netdev, sch, data, rpriv, 505 cleanup); 506 if (IS_ERR(block_cb)) { 507 list_del(&indr_priv->list); 508 kfree(indr_priv); 509 return PTR_ERR(block_cb); 510 } 511 flow_block_cb_add(block_cb, f); 512 list_add_tail(&block_cb->driver_list, &mlx5e_block_cb_list); 513 514 return 0; 515 case FLOW_BLOCK_UNBIND: 516 indr_priv = mlx5e_rep_indr_block_priv_lookup(rpriv, netdev, f->binder_type); 517 if (!indr_priv) 518 return -ENOENT; 519 520 block_cb = flow_block_cb_lookup(f->block, setup_cb, indr_priv); 521 if (!block_cb) 522 return -ENOENT; 523 524 flow_indr_block_cb_remove(block_cb, f); 525 list_del(&block_cb->driver_list); 526 return 0; 527 default: 528 return -EOPNOTSUPP; 529 } 530 return 0; 531 } 532 533 static int 534 mlx5e_rep_indr_replace_act(struct mlx5e_rep_priv *rpriv, 535 struct flow_offload_action *fl_act) 536 537 { 538 struct mlx5e_priv *priv = netdev_priv(rpriv->netdev); 539 struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; 540 enum mlx5_flow_namespace_type ns_type; 541 struct flow_action_entry *action; 542 struct mlx5e_tc_act *act; 543 bool add = false; 544 int i; 545 546 /* There is no use case currently for more than one action (e.g. pedit). 547 * when there will be, need to handle cleaning multiple actions on err. 548 */ 549 if (!flow_offload_has_one_action(&fl_act->action)) 550 return -EOPNOTSUPP; 551 552 if (esw && esw->mode == MLX5_ESWITCH_OFFLOADS) 553 ns_type = MLX5_FLOW_NAMESPACE_FDB; 554 else 555 ns_type = MLX5_FLOW_NAMESPACE_KERNEL; 556 557 flow_action_for_each(i, action, &fl_act->action) { 558 act = mlx5e_tc_act_get(action->id, ns_type); 559 if (!act) 560 continue; 561 562 if (!act->offload_action) 563 continue; 564 565 if (!act->offload_action(priv, fl_act, action)) 566 add = true; 567 } 568 569 return add ? 0 : -EOPNOTSUPP; 570 } 571 572 static int 573 mlx5e_rep_indr_destroy_act(struct mlx5e_rep_priv *rpriv, 574 struct flow_offload_action *fl_act) 575 { 576 struct mlx5e_priv *priv = netdev_priv(rpriv->netdev); 577 struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; 578 enum mlx5_flow_namespace_type ns_type; 579 struct mlx5e_tc_act *act; 580 581 if (esw && esw->mode == MLX5_ESWITCH_OFFLOADS) 582 ns_type = MLX5_FLOW_NAMESPACE_FDB; 583 else 584 ns_type = MLX5_FLOW_NAMESPACE_KERNEL; 585 586 act = mlx5e_tc_act_get(fl_act->id, ns_type); 587 if (!act || !act->destroy_action) 588 return -EOPNOTSUPP; 589 590 return act->destroy_action(priv, fl_act); 591 } 592 593 static int 594 mlx5e_rep_indr_stats_act(struct mlx5e_rep_priv *rpriv, 595 struct flow_offload_action *fl_act) 596 597 { 598 struct mlx5e_priv *priv = netdev_priv(rpriv->netdev); 599 struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; 600 enum mlx5_flow_namespace_type ns_type; 601 struct mlx5e_tc_act *act; 602 603 if (esw && esw->mode == MLX5_ESWITCH_OFFLOADS) 604 ns_type = MLX5_FLOW_NAMESPACE_FDB; 605 else 606 ns_type = MLX5_FLOW_NAMESPACE_KERNEL; 607 608 act = mlx5e_tc_act_get(fl_act->id, ns_type); 609 if (!act || !act->stats_action) 610 return mlx5e_tc_fill_action_stats(priv, fl_act); 611 612 return act->stats_action(priv, fl_act); 613 } 614 615 static int 616 mlx5e_rep_indr_setup_act(struct mlx5e_rep_priv *rpriv, 617 struct flow_offload_action *fl_act) 618 { 619 switch (fl_act->command) { 620 case FLOW_ACT_REPLACE: 621 return mlx5e_rep_indr_replace_act(rpriv, fl_act); 622 case FLOW_ACT_DESTROY: 623 return mlx5e_rep_indr_destroy_act(rpriv, fl_act); 624 case FLOW_ACT_STATS: 625 return mlx5e_rep_indr_stats_act(rpriv, fl_act); 626 default: 627 return -EOPNOTSUPP; 628 } 629 } 630 631 static int 632 mlx5e_rep_indr_no_dev_setup(struct mlx5e_rep_priv *rpriv, 633 enum tc_setup_type type, 634 void *data) 635 { 636 if (!data) 637 return -EOPNOTSUPP; 638 639 switch (type) { 640 case TC_SETUP_ACT: 641 return mlx5e_rep_indr_setup_act(rpriv, data); 642 default: 643 return -EOPNOTSUPP; 644 } 645 } 646 647 static 648 int mlx5e_rep_indr_setup_cb(struct net_device *netdev, struct Qdisc *sch, void *cb_priv, 649 enum tc_setup_type type, void *type_data, 650 void *data, 651 void (*cleanup)(struct flow_block_cb *block_cb)) 652 { 653 if (!netdev) 654 return mlx5e_rep_indr_no_dev_setup(cb_priv, type, data); 655 656 switch (type) { 657 case TC_SETUP_BLOCK: 658 return mlx5e_rep_indr_setup_block(netdev, sch, cb_priv, type_data, 659 mlx5e_rep_indr_setup_tc_cb, 660 data, cleanup); 661 case TC_SETUP_FT: 662 return mlx5e_rep_indr_setup_block(netdev, sch, cb_priv, type_data, 663 mlx5e_rep_indr_setup_ft_cb, 664 data, cleanup); 665 default: 666 return -EOPNOTSUPP; 667 } 668 } 669 670 int mlx5e_rep_tc_netdevice_event_register(struct mlx5e_rep_priv *rpriv) 671 { 672 struct mlx5_rep_uplink_priv *uplink_priv = &rpriv->uplink_priv; 673 674 /* init indirect block notifications */ 675 INIT_LIST_HEAD(&uplink_priv->tc_indr_block_priv_list); 676 677 return flow_indr_dev_register(mlx5e_rep_indr_setup_cb, rpriv); 678 } 679 680 void mlx5e_rep_tc_netdevice_event_unregister(struct mlx5e_rep_priv *rpriv) 681 { 682 flow_indr_dev_unregister(mlx5e_rep_indr_setup_cb, rpriv, 683 mlx5e_rep_indr_block_unbind); 684 } 685 686 void mlx5e_rep_tc_receive(struct mlx5_cqe64 *cqe, struct mlx5e_rq *rq, 687 struct sk_buff *skb) 688 { 689 u32 reg_c0, reg_c1, zone_restore_id, tunnel_id; 690 struct mlx5e_tc_update_priv tc_priv = {}; 691 struct mlx5_rep_uplink_priv *uplink_priv; 692 struct mlx5e_rep_priv *uplink_rpriv; 693 struct mlx5_tc_ct_priv *ct_priv; 694 struct mapping_ctx *mapping_ctx; 695 struct mlx5_eswitch *esw; 696 struct mlx5e_priv *priv; 697 698 reg_c0 = (be32_to_cpu(cqe->sop_drop_qpn) & MLX5E_TC_FLOW_ID_MASK); 699 if (!reg_c0 || reg_c0 == MLX5_FS_DEFAULT_FLOW_TAG) 700 goto forward; 701 702 /* If mapped_obj_id is not equal to the default flow tag then skb->mark 703 * is not supported and must be reset back to 0. 704 */ 705 skb->mark = 0; 706 707 priv = netdev_priv(skb->dev); 708 esw = priv->mdev->priv.eswitch; 709 mapping_ctx = esw->offloads.reg_c0_obj_pool; 710 reg_c1 = be32_to_cpu(cqe->ft_metadata); 711 zone_restore_id = reg_c1 & ESW_ZONE_ID_MASK; 712 tunnel_id = (reg_c1 >> ESW_TUN_OFFSET) & TUNNEL_ID_MASK; 713 714 uplink_rpriv = mlx5_eswitch_get_uplink_priv(esw, REP_ETH); 715 uplink_priv = &uplink_rpriv->uplink_priv; 716 ct_priv = uplink_priv->ct_priv; 717 718 #ifdef CONFIG_MLX5_EN_IPSEC 719 if (!(tunnel_id >> ESW_TUN_OPTS_BITS)) { 720 u32 mapped_id; 721 u32 metadata; 722 723 mapped_id = tunnel_id & ESW_IPSEC_RX_MAPPED_ID_MASK; 724 if (mapped_id && 725 !mlx5_esw_ipsec_rx_make_metadata(priv, mapped_id, &metadata)) 726 mlx5e_ipsec_offload_handle_rx_skb(priv->netdev, skb, metadata); 727 } 728 #endif 729 730 if (!mlx5e_tc_update_skb(cqe, skb, mapping_ctx, reg_c0, ct_priv, 731 zone_restore_id, tunnel_id, &tc_priv)) 732 goto free_skb; 733 734 forward: 735 if (tc_priv.skb_done) 736 goto free_skb; 737 738 if (tc_priv.forward_tx) 739 dev_queue_xmit(skb); 740 else 741 napi_gro_receive(rq->cq.napi, skb); 742 743 dev_put(tc_priv.fwd_dev); 744 745 return; 746 747 free_skb: 748 dev_put(tc_priv.fwd_dev); 749 dev_kfree_skb_any(skb); 750 } 751