1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef __NET_PKT_CLS_H 3 #define __NET_PKT_CLS_H 4 5 #include <linux/pkt_cls.h> 6 #include <linux/workqueue.h> 7 #include <net/sch_generic.h> 8 #include <net/act_api.h> 9 #include <net/net_namespace.h> 10 11 /* TC action not accessible from user space */ 12 #define TC_ACT_CONSUMED (TC_ACT_VALUE_MAX + 1) 13 14 /* Basic packet classifier frontend definitions. */ 15 16 struct tcf_walker { 17 int stop; 18 int skip; 19 int count; 20 bool nonempty; 21 unsigned long cookie; 22 int (*fn)(struct tcf_proto *, void *node, struct tcf_walker *); 23 }; 24 25 int register_tcf_proto_ops(struct tcf_proto_ops *ops); 26 int unregister_tcf_proto_ops(struct tcf_proto_ops *ops); 27 28 struct tcf_block_ext_info { 29 enum flow_block_binder_type binder_type; 30 tcf_chain_head_change_t *chain_head_change; 31 void *chain_head_change_priv; 32 u32 block_index; 33 }; 34 35 struct tcf_block_cb; 36 bool tcf_queue_work(struct rcu_work *rwork, work_func_t func); 37 38 #ifdef CONFIG_NET_CLS 39 struct tcf_chain *tcf_chain_get_by_act(struct tcf_block *block, 40 u32 chain_index); 41 void tcf_chain_put_by_act(struct tcf_chain *chain); 42 struct tcf_chain *tcf_get_next_chain(struct tcf_block *block, 43 struct tcf_chain *chain); 44 struct tcf_proto *tcf_get_next_proto(struct tcf_chain *chain, 45 struct tcf_proto *tp, bool rtnl_held); 46 void tcf_block_netif_keep_dst(struct tcf_block *block); 47 int tcf_block_get(struct tcf_block **p_block, 48 struct tcf_proto __rcu **p_filter_chain, struct Qdisc *q, 49 struct netlink_ext_ack *extack); 50 int tcf_block_get_ext(struct tcf_block **p_block, struct Qdisc *q, 51 struct tcf_block_ext_info *ei, 52 struct netlink_ext_ack *extack); 53 void tcf_block_put(struct tcf_block *block); 54 void tcf_block_put_ext(struct tcf_block *block, struct Qdisc *q, 55 struct tcf_block_ext_info *ei); 56 57 static inline bool tcf_block_shared(struct tcf_block *block) 58 { 59 return block->index; 60 } 61 62 static inline bool tcf_block_non_null_shared(struct tcf_block *block) 63 { 64 return block && block->index; 65 } 66 67 static inline struct Qdisc *tcf_block_q(struct tcf_block *block) 68 { 69 WARN_ON(tcf_block_shared(block)); 70 return block->q; 71 } 72 73 int tcf_classify(struct sk_buff *skb, const struct tcf_proto *tp, 74 struct tcf_result *res, bool compat_mode); 75 76 #else 77 static inline bool tcf_block_shared(struct tcf_block *block) 78 { 79 return false; 80 } 81 82 static inline bool tcf_block_non_null_shared(struct tcf_block *block) 83 { 84 return false; 85 } 86 87 static inline 88 int tcf_block_get(struct tcf_block **p_block, 89 struct tcf_proto __rcu **p_filter_chain, struct Qdisc *q, 90 struct netlink_ext_ack *extack) 91 { 92 return 0; 93 } 94 95 static inline 96 int tcf_block_get_ext(struct tcf_block **p_block, struct Qdisc *q, 97 struct tcf_block_ext_info *ei, 98 struct netlink_ext_ack *extack) 99 { 100 return 0; 101 } 102 103 static inline void tcf_block_put(struct tcf_block *block) 104 { 105 } 106 107 static inline 108 void tcf_block_put_ext(struct tcf_block *block, struct Qdisc *q, 109 struct tcf_block_ext_info *ei) 110 { 111 } 112 113 static inline struct Qdisc *tcf_block_q(struct tcf_block *block) 114 { 115 return NULL; 116 } 117 118 static inline 119 int tc_setup_cb_block_register(struct tcf_block *block, flow_setup_cb_t *cb, 120 void *cb_priv) 121 { 122 return 0; 123 } 124 125 static inline 126 void tc_setup_cb_block_unregister(struct tcf_block *block, flow_setup_cb_t *cb, 127 void *cb_priv) 128 { 129 } 130 131 static inline int tcf_classify(struct sk_buff *skb, const struct tcf_proto *tp, 132 struct tcf_result *res, bool compat_mode) 133 { 134 return TC_ACT_UNSPEC; 135 } 136 #endif 137 138 static inline unsigned long 139 __cls_set_class(unsigned long *clp, unsigned long cl) 140 { 141 return xchg(clp, cl); 142 } 143 144 static inline unsigned long 145 cls_set_class(struct Qdisc *q, unsigned long *clp, unsigned long cl) 146 { 147 unsigned long old_cl; 148 149 sch_tree_lock(q); 150 old_cl = __cls_set_class(clp, cl); 151 sch_tree_unlock(q); 152 return old_cl; 153 } 154 155 static inline void 156 tcf_bind_filter(struct tcf_proto *tp, struct tcf_result *r, unsigned long base) 157 { 158 struct Qdisc *q = tp->chain->block->q; 159 unsigned long cl; 160 161 /* Check q as it is not set for shared blocks. In that case, 162 * setting class is not supported. 163 */ 164 if (!q) 165 return; 166 cl = q->ops->cl_ops->bind_tcf(q, base, r->classid); 167 cl = cls_set_class(q, &r->class, cl); 168 if (cl) 169 q->ops->cl_ops->unbind_tcf(q, cl); 170 } 171 172 static inline void 173 tcf_unbind_filter(struct tcf_proto *tp, struct tcf_result *r) 174 { 175 struct Qdisc *q = tp->chain->block->q; 176 unsigned long cl; 177 178 if (!q) 179 return; 180 if ((cl = __cls_set_class(&r->class, 0)) != 0) 181 q->ops->cl_ops->unbind_tcf(q, cl); 182 } 183 184 struct tcf_exts { 185 #ifdef CONFIG_NET_CLS_ACT 186 __u32 type; /* for backward compat(TCA_OLD_COMPAT) */ 187 int nr_actions; 188 struct tc_action **actions; 189 struct net *net; 190 #endif 191 /* Map to export classifier specific extension TLV types to the 192 * generic extensions API. Unsupported extensions must be set to 0. 193 */ 194 int action; 195 int police; 196 }; 197 198 static inline int tcf_exts_init(struct tcf_exts *exts, struct net *net, 199 int action, int police) 200 { 201 #ifdef CONFIG_NET_CLS_ACT 202 exts->type = 0; 203 exts->nr_actions = 0; 204 exts->net = net; 205 exts->actions = kcalloc(TCA_ACT_MAX_PRIO, sizeof(struct tc_action *), 206 GFP_KERNEL); 207 if (!exts->actions) 208 return -ENOMEM; 209 #endif 210 exts->action = action; 211 exts->police = police; 212 return 0; 213 } 214 215 /* Return false if the netns is being destroyed in cleanup_net(). Callers 216 * need to do cleanup synchronously in this case, otherwise may race with 217 * tc_action_net_exit(). Return true for other cases. 218 */ 219 static inline bool tcf_exts_get_net(struct tcf_exts *exts) 220 { 221 #ifdef CONFIG_NET_CLS_ACT 222 exts->net = maybe_get_net(exts->net); 223 return exts->net != NULL; 224 #else 225 return true; 226 #endif 227 } 228 229 static inline void tcf_exts_put_net(struct tcf_exts *exts) 230 { 231 #ifdef CONFIG_NET_CLS_ACT 232 if (exts->net) 233 put_net(exts->net); 234 #endif 235 } 236 237 #ifdef CONFIG_NET_CLS_ACT 238 #define tcf_exts_for_each_action(i, a, exts) \ 239 for (i = 0; i < TCA_ACT_MAX_PRIO && ((a) = (exts)->actions[i]); i++) 240 #else 241 #define tcf_exts_for_each_action(i, a, exts) \ 242 for (; 0; (void)(i), (void)(a), (void)(exts)) 243 #endif 244 245 static inline void 246 tcf_exts_stats_update(const struct tcf_exts *exts, 247 u64 bytes, u64 packets, u64 lastuse) 248 { 249 #ifdef CONFIG_NET_CLS_ACT 250 int i; 251 252 preempt_disable(); 253 254 for (i = 0; i < exts->nr_actions; i++) { 255 struct tc_action *a = exts->actions[i]; 256 257 tcf_action_stats_update(a, bytes, packets, lastuse, true); 258 } 259 260 preempt_enable(); 261 #endif 262 } 263 264 /** 265 * tcf_exts_has_actions - check if at least one action is present 266 * @exts: tc filter extensions handle 267 * 268 * Returns true if at least one action is present. 269 */ 270 static inline bool tcf_exts_has_actions(struct tcf_exts *exts) 271 { 272 #ifdef CONFIG_NET_CLS_ACT 273 return exts->nr_actions; 274 #else 275 return false; 276 #endif 277 } 278 279 /** 280 * tcf_exts_exec - execute tc filter extensions 281 * @skb: socket buffer 282 * @exts: tc filter extensions handle 283 * @res: desired result 284 * 285 * Executes all configured extensions. Returns TC_ACT_OK on a normal execution, 286 * a negative number if the filter must be considered unmatched or 287 * a positive action code (TC_ACT_*) which must be returned to the 288 * underlying layer. 289 */ 290 static inline int 291 tcf_exts_exec(struct sk_buff *skb, struct tcf_exts *exts, 292 struct tcf_result *res) 293 { 294 #ifdef CONFIG_NET_CLS_ACT 295 return tcf_action_exec(skb, exts->actions, exts->nr_actions, res); 296 #endif 297 return TC_ACT_OK; 298 } 299 300 int tcf_exts_validate(struct net *net, struct tcf_proto *tp, 301 struct nlattr **tb, struct nlattr *rate_tlv, 302 struct tcf_exts *exts, bool ovr, bool rtnl_held, 303 struct netlink_ext_ack *extack); 304 void tcf_exts_destroy(struct tcf_exts *exts); 305 void tcf_exts_change(struct tcf_exts *dst, struct tcf_exts *src); 306 int tcf_exts_dump(struct sk_buff *skb, struct tcf_exts *exts); 307 int tcf_exts_dump_stats(struct sk_buff *skb, struct tcf_exts *exts); 308 309 /** 310 * struct tcf_pkt_info - packet information 311 */ 312 struct tcf_pkt_info { 313 unsigned char * ptr; 314 int nexthdr; 315 }; 316 317 #ifdef CONFIG_NET_EMATCH 318 319 struct tcf_ematch_ops; 320 321 /** 322 * struct tcf_ematch - extended match (ematch) 323 * 324 * @matchid: identifier to allow userspace to reidentify a match 325 * @flags: flags specifying attributes and the relation to other matches 326 * @ops: the operations lookup table of the corresponding ematch module 327 * @datalen: length of the ematch specific configuration data 328 * @data: ematch specific data 329 */ 330 struct tcf_ematch { 331 struct tcf_ematch_ops * ops; 332 unsigned long data; 333 unsigned int datalen; 334 u16 matchid; 335 u16 flags; 336 struct net *net; 337 }; 338 339 static inline int tcf_em_is_container(struct tcf_ematch *em) 340 { 341 return !em->ops; 342 } 343 344 static inline int tcf_em_is_simple(struct tcf_ematch *em) 345 { 346 return em->flags & TCF_EM_SIMPLE; 347 } 348 349 static inline int tcf_em_is_inverted(struct tcf_ematch *em) 350 { 351 return em->flags & TCF_EM_INVERT; 352 } 353 354 static inline int tcf_em_last_match(struct tcf_ematch *em) 355 { 356 return (em->flags & TCF_EM_REL_MASK) == TCF_EM_REL_END; 357 } 358 359 static inline int tcf_em_early_end(struct tcf_ematch *em, int result) 360 { 361 if (tcf_em_last_match(em)) 362 return 1; 363 364 if (result == 0 && em->flags & TCF_EM_REL_AND) 365 return 1; 366 367 if (result != 0 && em->flags & TCF_EM_REL_OR) 368 return 1; 369 370 return 0; 371 } 372 373 /** 374 * struct tcf_ematch_tree - ematch tree handle 375 * 376 * @hdr: ematch tree header supplied by userspace 377 * @matches: array of ematches 378 */ 379 struct tcf_ematch_tree { 380 struct tcf_ematch_tree_hdr hdr; 381 struct tcf_ematch * matches; 382 383 }; 384 385 /** 386 * struct tcf_ematch_ops - ematch module operations 387 * 388 * @kind: identifier (kind) of this ematch module 389 * @datalen: length of expected configuration data (optional) 390 * @change: called during validation (optional) 391 * @match: called during ematch tree evaluation, must return 1/0 392 * @destroy: called during destroyage (optional) 393 * @dump: called during dumping process (optional) 394 * @owner: owner, must be set to THIS_MODULE 395 * @link: link to previous/next ematch module (internal use) 396 */ 397 struct tcf_ematch_ops { 398 int kind; 399 int datalen; 400 int (*change)(struct net *net, void *, 401 int, struct tcf_ematch *); 402 int (*match)(struct sk_buff *, struct tcf_ematch *, 403 struct tcf_pkt_info *); 404 void (*destroy)(struct tcf_ematch *); 405 int (*dump)(struct sk_buff *, struct tcf_ematch *); 406 struct module *owner; 407 struct list_head link; 408 }; 409 410 int tcf_em_register(struct tcf_ematch_ops *); 411 void tcf_em_unregister(struct tcf_ematch_ops *); 412 int tcf_em_tree_validate(struct tcf_proto *, struct nlattr *, 413 struct tcf_ematch_tree *); 414 void tcf_em_tree_destroy(struct tcf_ematch_tree *); 415 int tcf_em_tree_dump(struct sk_buff *, struct tcf_ematch_tree *, int); 416 int __tcf_em_tree_match(struct sk_buff *, struct tcf_ematch_tree *, 417 struct tcf_pkt_info *); 418 419 /** 420 * tcf_em_tree_match - evaulate an ematch tree 421 * 422 * @skb: socket buffer of the packet in question 423 * @tree: ematch tree to be used for evaluation 424 * @info: packet information examined by classifier 425 * 426 * This function matches @skb against the ematch tree in @tree by going 427 * through all ematches respecting their logic relations returning 428 * as soon as the result is obvious. 429 * 430 * Returns 1 if the ematch tree as-one matches, no ematches are configured 431 * or ematch is not enabled in the kernel, otherwise 0 is returned. 432 */ 433 static inline int tcf_em_tree_match(struct sk_buff *skb, 434 struct tcf_ematch_tree *tree, 435 struct tcf_pkt_info *info) 436 { 437 if (tree->hdr.nmatches) 438 return __tcf_em_tree_match(skb, tree, info); 439 else 440 return 1; 441 } 442 443 #define MODULE_ALIAS_TCF_EMATCH(kind) MODULE_ALIAS("ematch-kind-" __stringify(kind)) 444 445 #else /* CONFIG_NET_EMATCH */ 446 447 struct tcf_ematch_tree { 448 }; 449 450 #define tcf_em_tree_validate(tp, tb, t) ((void)(t), 0) 451 #define tcf_em_tree_destroy(t) do { (void)(t); } while(0) 452 #define tcf_em_tree_dump(skb, t, tlv) (0) 453 #define tcf_em_tree_match(skb, t, info) ((void)(info), 1) 454 455 #endif /* CONFIG_NET_EMATCH */ 456 457 static inline unsigned char * tcf_get_base_ptr(struct sk_buff *skb, int layer) 458 { 459 switch (layer) { 460 case TCF_LAYER_LINK: 461 return skb_mac_header(skb); 462 case TCF_LAYER_NETWORK: 463 return skb_network_header(skb); 464 case TCF_LAYER_TRANSPORT: 465 return skb_transport_header(skb); 466 } 467 468 return NULL; 469 } 470 471 static inline int tcf_valid_offset(const struct sk_buff *skb, 472 const unsigned char *ptr, const int len) 473 { 474 return likely((ptr + len) <= skb_tail_pointer(skb) && 475 ptr >= skb->head && 476 (ptr <= (ptr + len))); 477 } 478 479 static inline int 480 tcf_change_indev(struct net *net, struct nlattr *indev_tlv, 481 struct netlink_ext_ack *extack) 482 { 483 char indev[IFNAMSIZ]; 484 struct net_device *dev; 485 486 if (nla_strlcpy(indev, indev_tlv, IFNAMSIZ) >= IFNAMSIZ) { 487 NL_SET_ERR_MSG(extack, "Interface name too long"); 488 return -EINVAL; 489 } 490 dev = __dev_get_by_name(net, indev); 491 if (!dev) 492 return -ENODEV; 493 return dev->ifindex; 494 } 495 496 static inline bool 497 tcf_match_indev(struct sk_buff *skb, int ifindex) 498 { 499 if (!ifindex) 500 return true; 501 if (!skb->skb_iif) 502 return false; 503 return ifindex == skb->skb_iif; 504 } 505 506 int tc_setup_flow_action(struct flow_action *flow_action, 507 const struct tcf_exts *exts); 508 int tc_setup_cb_call(struct tcf_block *block, enum tc_setup_type type, 509 void *type_data, bool err_stop); 510 unsigned int tcf_exts_num_actions(struct tcf_exts *exts); 511 512 struct tc_cls_u32_knode { 513 struct tcf_exts *exts; 514 struct tcf_result *res; 515 struct tc_u32_sel *sel; 516 u32 handle; 517 u32 val; 518 u32 mask; 519 u32 link_handle; 520 u8 fshift; 521 }; 522 523 struct tc_cls_u32_hnode { 524 u32 handle; 525 u32 prio; 526 unsigned int divisor; 527 }; 528 529 enum tc_clsu32_command { 530 TC_CLSU32_NEW_KNODE, 531 TC_CLSU32_REPLACE_KNODE, 532 TC_CLSU32_DELETE_KNODE, 533 TC_CLSU32_NEW_HNODE, 534 TC_CLSU32_REPLACE_HNODE, 535 TC_CLSU32_DELETE_HNODE, 536 }; 537 538 struct tc_cls_u32_offload { 539 struct flow_cls_common_offload common; 540 /* knode values */ 541 enum tc_clsu32_command command; 542 union { 543 struct tc_cls_u32_knode knode; 544 struct tc_cls_u32_hnode hnode; 545 }; 546 }; 547 548 static inline bool tc_can_offload(const struct net_device *dev) 549 { 550 return dev->features & NETIF_F_HW_TC; 551 } 552 553 static inline bool tc_can_offload_extack(const struct net_device *dev, 554 struct netlink_ext_ack *extack) 555 { 556 bool can = tc_can_offload(dev); 557 558 if (!can) 559 NL_SET_ERR_MSG(extack, "TC offload is disabled on net device"); 560 561 return can; 562 } 563 564 static inline bool 565 tc_cls_can_offload_and_chain0(const struct net_device *dev, 566 struct flow_cls_common_offload *common) 567 { 568 if (!tc_can_offload_extack(dev, common->extack)) 569 return false; 570 if (common->chain_index) { 571 NL_SET_ERR_MSG(common->extack, 572 "Driver supports only offload of chain 0"); 573 return false; 574 } 575 return true; 576 } 577 578 static inline bool tc_skip_hw(u32 flags) 579 { 580 return (flags & TCA_CLS_FLAGS_SKIP_HW) ? true : false; 581 } 582 583 static inline bool tc_skip_sw(u32 flags) 584 { 585 return (flags & TCA_CLS_FLAGS_SKIP_SW) ? true : false; 586 } 587 588 /* SKIP_HW and SKIP_SW are mutually exclusive flags. */ 589 static inline bool tc_flags_valid(u32 flags) 590 { 591 if (flags & ~(TCA_CLS_FLAGS_SKIP_HW | TCA_CLS_FLAGS_SKIP_SW | 592 TCA_CLS_FLAGS_VERBOSE)) 593 return false; 594 595 flags &= TCA_CLS_FLAGS_SKIP_HW | TCA_CLS_FLAGS_SKIP_SW; 596 if (!(flags ^ (TCA_CLS_FLAGS_SKIP_HW | TCA_CLS_FLAGS_SKIP_SW))) 597 return false; 598 599 return true; 600 } 601 602 static inline bool tc_in_hw(u32 flags) 603 { 604 return (flags & TCA_CLS_FLAGS_IN_HW) ? true : false; 605 } 606 607 static inline void 608 tc_cls_common_offload_init(struct flow_cls_common_offload *cls_common, 609 const struct tcf_proto *tp, u32 flags, 610 struct netlink_ext_ack *extack) 611 { 612 cls_common->chain_index = tp->chain->index; 613 cls_common->protocol = tp->protocol; 614 cls_common->prio = tp->prio; 615 if (tc_skip_sw(flags) || flags & TCA_CLS_FLAGS_VERBOSE) 616 cls_common->extack = extack; 617 } 618 619 enum tc_matchall_command { 620 TC_CLSMATCHALL_REPLACE, 621 TC_CLSMATCHALL_DESTROY, 622 TC_CLSMATCHALL_STATS, 623 }; 624 625 struct tc_cls_matchall_offload { 626 struct flow_cls_common_offload common; 627 enum tc_matchall_command command; 628 struct flow_rule *rule; 629 struct flow_stats stats; 630 unsigned long cookie; 631 }; 632 633 enum tc_clsbpf_command { 634 TC_CLSBPF_OFFLOAD, 635 TC_CLSBPF_STATS, 636 }; 637 638 struct tc_cls_bpf_offload { 639 struct flow_cls_common_offload common; 640 enum tc_clsbpf_command command; 641 struct tcf_exts *exts; 642 struct bpf_prog *prog; 643 struct bpf_prog *oldprog; 644 const char *name; 645 bool exts_integrated; 646 }; 647 648 struct tc_mqprio_qopt_offload { 649 /* struct tc_mqprio_qopt must always be the first element */ 650 struct tc_mqprio_qopt qopt; 651 u16 mode; 652 u16 shaper; 653 u32 flags; 654 u64 min_rate[TC_QOPT_MAX_QUEUE]; 655 u64 max_rate[TC_QOPT_MAX_QUEUE]; 656 }; 657 658 /* This structure holds cookie structure that is passed from user 659 * to the kernel for actions and classifiers 660 */ 661 struct tc_cookie { 662 u8 *data; 663 u32 len; 664 struct rcu_head rcu; 665 }; 666 667 struct tc_qopt_offload_stats { 668 struct gnet_stats_basic_packed *bstats; 669 struct gnet_stats_queue *qstats; 670 }; 671 672 enum tc_mq_command { 673 TC_MQ_CREATE, 674 TC_MQ_DESTROY, 675 TC_MQ_STATS, 676 TC_MQ_GRAFT, 677 }; 678 679 struct tc_mq_opt_offload_graft_params { 680 unsigned long queue; 681 u32 child_handle; 682 }; 683 684 struct tc_mq_qopt_offload { 685 enum tc_mq_command command; 686 u32 handle; 687 union { 688 struct tc_qopt_offload_stats stats; 689 struct tc_mq_opt_offload_graft_params graft_params; 690 }; 691 }; 692 693 enum tc_red_command { 694 TC_RED_REPLACE, 695 TC_RED_DESTROY, 696 TC_RED_STATS, 697 TC_RED_XSTATS, 698 TC_RED_GRAFT, 699 }; 700 701 struct tc_red_qopt_offload_params { 702 u32 min; 703 u32 max; 704 u32 probability; 705 u32 limit; 706 bool is_ecn; 707 bool is_harddrop; 708 struct gnet_stats_queue *qstats; 709 }; 710 711 struct tc_red_qopt_offload { 712 enum tc_red_command command; 713 u32 handle; 714 u32 parent; 715 union { 716 struct tc_red_qopt_offload_params set; 717 struct tc_qopt_offload_stats stats; 718 struct red_stats *xstats; 719 u32 child_handle; 720 }; 721 }; 722 723 enum tc_gred_command { 724 TC_GRED_REPLACE, 725 TC_GRED_DESTROY, 726 TC_GRED_STATS, 727 }; 728 729 struct tc_gred_vq_qopt_offload_params { 730 bool present; 731 u32 limit; 732 u32 prio; 733 u32 min; 734 u32 max; 735 bool is_ecn; 736 bool is_harddrop; 737 u32 probability; 738 /* Only need backlog, see struct tc_prio_qopt_offload_params */ 739 u32 *backlog; 740 }; 741 742 struct tc_gred_qopt_offload_params { 743 bool grio_on; 744 bool wred_on; 745 unsigned int dp_cnt; 746 unsigned int dp_def; 747 struct gnet_stats_queue *qstats; 748 struct tc_gred_vq_qopt_offload_params tab[MAX_DPs]; 749 }; 750 751 struct tc_gred_qopt_offload_stats { 752 struct gnet_stats_basic_packed bstats[MAX_DPs]; 753 struct gnet_stats_queue qstats[MAX_DPs]; 754 struct red_stats *xstats[MAX_DPs]; 755 }; 756 757 struct tc_gred_qopt_offload { 758 enum tc_gred_command command; 759 u32 handle; 760 u32 parent; 761 union { 762 struct tc_gred_qopt_offload_params set; 763 struct tc_gred_qopt_offload_stats stats; 764 }; 765 }; 766 767 enum tc_prio_command { 768 TC_PRIO_REPLACE, 769 TC_PRIO_DESTROY, 770 TC_PRIO_STATS, 771 TC_PRIO_GRAFT, 772 }; 773 774 struct tc_prio_qopt_offload_params { 775 int bands; 776 u8 priomap[TC_PRIO_MAX + 1]; 777 /* In case that a prio qdisc is offloaded and now is changed to a 778 * non-offloadedable config, it needs to update the backlog & qlen 779 * values to negate the HW backlog & qlen values (and only them). 780 */ 781 struct gnet_stats_queue *qstats; 782 }; 783 784 struct tc_prio_qopt_offload_graft_params { 785 u8 band; 786 u32 child_handle; 787 }; 788 789 struct tc_prio_qopt_offload { 790 enum tc_prio_command command; 791 u32 handle; 792 u32 parent; 793 union { 794 struct tc_prio_qopt_offload_params replace_params; 795 struct tc_qopt_offload_stats stats; 796 struct tc_prio_qopt_offload_graft_params graft_params; 797 }; 798 }; 799 800 enum tc_root_command { 801 TC_ROOT_GRAFT, 802 }; 803 804 struct tc_root_qopt_offload { 805 enum tc_root_command command; 806 u32 handle; 807 bool ingress; 808 }; 809 810 #endif 811