diff options
Diffstat (limited to '')
| -rw-r--r-- | include/net/pkt_cls.h | 872 |
1 files changed, 872 insertions, 0 deletions
diff --git a/include/net/pkt_cls.h b/include/net/pkt_cls.h new file mode 100644 index 000000000..c1162f2fd --- /dev/null +++ b/include/net/pkt_cls.h @@ -0,0 +1,872 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __NET_PKT_CLS_H +#define __NET_PKT_CLS_H + +#include <linux/pkt_cls.h> +#include <linux/workqueue.h> +#include <net/sch_generic.h> +#include <net/act_api.h> + +/* TC action not accessible from user space */ +#define TC_ACT_REINSERT (TC_ACT_VALUE_MAX + 1) + +/* Basic packet classifier frontend definitions. */ + +struct tcf_walker { + int stop; + int skip; + int count; + unsigned long cookie; + int (*fn)(struct tcf_proto *, void *node, struct tcf_walker *); +}; + +int register_tcf_proto_ops(struct tcf_proto_ops *ops); +int unregister_tcf_proto_ops(struct tcf_proto_ops *ops); + +enum tcf_block_binder_type { + TCF_BLOCK_BINDER_TYPE_UNSPEC, + TCF_BLOCK_BINDER_TYPE_CLSACT_INGRESS, + TCF_BLOCK_BINDER_TYPE_CLSACT_EGRESS, +}; + +struct tcf_block_ext_info { + enum tcf_block_binder_type binder_type; + tcf_chain_head_change_t *chain_head_change; + void *chain_head_change_priv; + u32 block_index; +}; + +struct tcf_block_cb; +bool tcf_queue_work(struct rcu_work *rwork, work_func_t func); + +#ifdef CONFIG_NET_CLS +struct tcf_chain *tcf_chain_get_by_act(struct tcf_block *block, + u32 chain_index); +void tcf_chain_put_by_act(struct tcf_chain *chain); +void tcf_block_netif_keep_dst(struct tcf_block *block); +int tcf_block_get(struct tcf_block **p_block, + struct tcf_proto __rcu **p_filter_chain, struct Qdisc *q, + struct netlink_ext_ack *extack); +int tcf_block_get_ext(struct tcf_block **p_block, struct Qdisc *q, + struct tcf_block_ext_info *ei, + struct netlink_ext_ack *extack); +void tcf_block_put(struct tcf_block *block); +void tcf_block_put_ext(struct tcf_block *block, struct Qdisc *q, + struct tcf_block_ext_info *ei); + +static inline bool tcf_block_shared(struct tcf_block *block) +{ + return block->index; +} + +static inline struct Qdisc *tcf_block_q(struct tcf_block *block) +{ + WARN_ON(tcf_block_shared(block)); + return block->q; +} + +static inline struct net_device *tcf_block_dev(struct tcf_block *block) +{ + return tcf_block_q(block)->dev_queue->dev; +} + +void *tcf_block_cb_priv(struct tcf_block_cb *block_cb); +struct tcf_block_cb *tcf_block_cb_lookup(struct tcf_block *block, + tc_setup_cb_t *cb, void *cb_ident); +void tcf_block_cb_incref(struct tcf_block_cb *block_cb); +unsigned int tcf_block_cb_decref(struct tcf_block_cb *block_cb); +struct tcf_block_cb *__tcf_block_cb_register(struct tcf_block *block, + tc_setup_cb_t *cb, void *cb_ident, + void *cb_priv, + struct netlink_ext_ack *extack); +int tcf_block_cb_register(struct tcf_block *block, + tc_setup_cb_t *cb, void *cb_ident, + void *cb_priv, struct netlink_ext_ack *extack); +void __tcf_block_cb_unregister(struct tcf_block *block, + struct tcf_block_cb *block_cb); +void tcf_block_cb_unregister(struct tcf_block *block, + tc_setup_cb_t *cb, void *cb_ident); + +int tcf_classify(struct sk_buff *skb, const struct tcf_proto *tp, + struct tcf_result *res, bool compat_mode); + +#else +static inline +int tcf_block_get(struct tcf_block **p_block, + struct tcf_proto __rcu **p_filter_chain, struct Qdisc *q, + struct netlink_ext_ack *extack) +{ + return 0; +} + +static inline +int tcf_block_get_ext(struct tcf_block **p_block, struct Qdisc *q, + struct tcf_block_ext_info *ei, + struct netlink_ext_ack *extack) +{ + return 0; +} + +static inline void tcf_block_put(struct tcf_block *block) +{ +} + +static inline +void tcf_block_put_ext(struct tcf_block *block, struct Qdisc *q, + struct tcf_block_ext_info *ei) +{ +} + +static inline struct Qdisc *tcf_block_q(struct tcf_block *block) +{ + return NULL; +} + +static inline struct net_device *tcf_block_dev(struct tcf_block *block) +{ + return NULL; +} + +static inline +int tc_setup_cb_block_register(struct tcf_block *block, tc_setup_cb_t *cb, + void *cb_priv) +{ + return 0; +} + +static inline +void tc_setup_cb_block_unregister(struct tcf_block *block, tc_setup_cb_t *cb, + void *cb_priv) +{ +} + +static inline +void *tcf_block_cb_priv(struct tcf_block_cb *block_cb) +{ + return NULL; +} + +static inline +struct tcf_block_cb *tcf_block_cb_lookup(struct tcf_block *block, + tc_setup_cb_t *cb, void *cb_ident) +{ + return NULL; +} + +static inline +void tcf_block_cb_incref(struct tcf_block_cb *block_cb) +{ +} + +static inline +unsigned int tcf_block_cb_decref(struct tcf_block_cb *block_cb) +{ + return 0; +} + +static inline +struct tcf_block_cb *__tcf_block_cb_register(struct tcf_block *block, + tc_setup_cb_t *cb, void *cb_ident, + void *cb_priv, + struct netlink_ext_ack *extack) +{ + return NULL; +} + +static inline +int tcf_block_cb_register(struct tcf_block *block, + tc_setup_cb_t *cb, void *cb_ident, + void *cb_priv, struct netlink_ext_ack *extack) +{ + return 0; +} + +static inline +void __tcf_block_cb_unregister(struct tcf_block *block, + struct tcf_block_cb *block_cb) +{ +} + +static inline +void tcf_block_cb_unregister(struct tcf_block *block, + tc_setup_cb_t *cb, void *cb_ident) +{ +} + +static inline int tcf_classify(struct sk_buff *skb, const struct tcf_proto *tp, + struct tcf_result *res, bool compat_mode) +{ + return TC_ACT_UNSPEC; +} +#endif + +static inline unsigned long +__cls_set_class(unsigned long *clp, unsigned long cl) +{ + return xchg(clp, cl); +} + +static inline void +__tcf_bind_filter(struct Qdisc *q, struct tcf_result *r, unsigned long base) +{ + unsigned long cl; + + cl = q->ops->cl_ops->bind_tcf(q, base, r->classid); + cl = __cls_set_class(&r->class, cl); + if (cl) + q->ops->cl_ops->unbind_tcf(q, cl); +} + +static inline void +tcf_bind_filter(struct tcf_proto *tp, struct tcf_result *r, unsigned long base) +{ + struct Qdisc *q = tp->chain->block->q; + + /* Check q as it is not set for shared blocks. In that case, + * setting class is not supported. + */ + if (!q) + return; + sch_tree_lock(q); + __tcf_bind_filter(q, r, base); + sch_tree_unlock(q); +} + +static inline void +__tcf_unbind_filter(struct Qdisc *q, struct tcf_result *r) +{ + unsigned long cl; + + if ((cl = __cls_set_class(&r->class, 0)) != 0) + q->ops->cl_ops->unbind_tcf(q, cl); +} + +static inline void +tcf_unbind_filter(struct tcf_proto *tp, struct tcf_result *r) +{ + struct Qdisc *q = tp->chain->block->q; + + if (!q) + return; + __tcf_unbind_filter(q, r); +} + +struct tcf_exts { +#ifdef CONFIG_NET_CLS_ACT + __u32 type; /* for backward compat(TCA_OLD_COMPAT) */ + int nr_actions; + struct tc_action **actions; + struct net *net; +#endif + /* Map to export classifier specific extension TLV types to the + * generic extensions API. Unsupported extensions must be set to 0. + */ + int action; + int police; +}; + +static inline int tcf_exts_init(struct tcf_exts *exts, int action, int police) +{ +#ifdef CONFIG_NET_CLS_ACT + exts->type = 0; + exts->nr_actions = 0; + exts->net = NULL; + exts->actions = kcalloc(TCA_ACT_MAX_PRIO, sizeof(struct tc_action *), + GFP_KERNEL); + if (!exts->actions) + return -ENOMEM; +#endif + exts->action = action; + exts->police = police; + return 0; +} + +/* Return false if the netns is being destroyed in cleanup_net(). Callers + * need to do cleanup synchronously in this case, otherwise may race with + * tc_action_net_exit(). Return true for other cases. + */ +static inline bool tcf_exts_get_net(struct tcf_exts *exts) +{ +#ifdef CONFIG_NET_CLS_ACT + exts->net = maybe_get_net(exts->net); + return exts->net != NULL; +#else + return true; +#endif +} + +static inline void tcf_exts_put_net(struct tcf_exts *exts) +{ +#ifdef CONFIG_NET_CLS_ACT + if (exts->net) + put_net(exts->net); +#endif +} + +#ifdef CONFIG_NET_CLS_ACT +#define tcf_exts_for_each_action(i, a, exts) \ + for (i = 0; i < TCA_ACT_MAX_PRIO && ((a) = (exts)->actions[i]); i++) +#else +#define tcf_exts_for_each_action(i, a, exts) \ + for (; 0; (void)(i), (void)(a), (void)(exts)) +#endif + +static inline void +tcf_exts_stats_update(const struct tcf_exts *exts, + u64 bytes, u64 packets, u64 lastuse) +{ +#ifdef CONFIG_NET_CLS_ACT + int i; + + preempt_disable(); + + for (i = 0; i < exts->nr_actions; i++) { + struct tc_action *a = exts->actions[i]; + + tcf_action_stats_update(a, bytes, packets, lastuse); + } + + preempt_enable(); +#endif +} + +/** + * tcf_exts_has_actions - check if at least one action is present + * @exts: tc filter extensions handle + * + * Returns true if at least one action is present. + */ +static inline bool tcf_exts_has_actions(struct tcf_exts *exts) +{ +#ifdef CONFIG_NET_CLS_ACT + return exts->nr_actions; +#else + return false; +#endif +} + +/** + * tcf_exts_has_one_action - check if exactly one action is present + * @exts: tc filter extensions handle + * + * Returns true if exactly one action is present. + */ +static inline bool tcf_exts_has_one_action(struct tcf_exts *exts) +{ +#ifdef CONFIG_NET_CLS_ACT + return exts->nr_actions == 1; +#else + return false; +#endif +} + +static inline struct tc_action *tcf_exts_first_action(struct tcf_exts *exts) +{ +#ifdef CONFIG_NET_CLS_ACT + return exts->actions[0]; +#else + return NULL; +#endif +} + +/** + * tcf_exts_exec - execute tc filter extensions + * @skb: socket buffer + * @exts: tc filter extensions handle + * @res: desired result + * + * Executes all configured extensions. Returns TC_ACT_OK on a normal execution, + * a negative number if the filter must be considered unmatched or + * a positive action code (TC_ACT_*) which must be returned to the + * underlying layer. + */ +static inline int +tcf_exts_exec(struct sk_buff *skb, struct tcf_exts *exts, + struct tcf_result *res) +{ +#ifdef CONFIG_NET_CLS_ACT + return tcf_action_exec(skb, exts->actions, exts->nr_actions, res); +#endif + return TC_ACT_OK; +} + +int tcf_exts_validate(struct net *net, struct tcf_proto *tp, + struct nlattr **tb, struct nlattr *rate_tlv, + struct tcf_exts *exts, bool ovr, + struct netlink_ext_ack *extack); +void tcf_exts_destroy(struct tcf_exts *exts); +void tcf_exts_change(struct tcf_exts *dst, struct tcf_exts *src); +int tcf_exts_dump(struct sk_buff *skb, struct tcf_exts *exts); +int tcf_exts_dump_stats(struct sk_buff *skb, struct tcf_exts *exts); + +/** + * struct tcf_pkt_info - packet information + */ +struct tcf_pkt_info { + unsigned char * ptr; + int nexthdr; +}; + +#ifdef CONFIG_NET_EMATCH + +struct tcf_ematch_ops; + +/** + * struct tcf_ematch - extended match (ematch) + * + * @matchid: identifier to allow userspace to reidentify a match + * @flags: flags specifying attributes and the relation to other matches + * @ops: the operations lookup table of the corresponding ematch module + * @datalen: length of the ematch specific configuration data + * @data: ematch specific data + */ +struct tcf_ematch { + struct tcf_ematch_ops * ops; + unsigned long data; + unsigned int datalen; + u16 matchid; + u16 flags; + struct net *net; +}; + +static inline int tcf_em_is_container(struct tcf_ematch *em) +{ + return !em->ops; +} + +static inline int tcf_em_is_simple(struct tcf_ematch *em) +{ + return em->flags & TCF_EM_SIMPLE; +} + +static inline int tcf_em_is_inverted(struct tcf_ematch *em) +{ + return em->flags & TCF_EM_INVERT; +} + +static inline int tcf_em_last_match(struct tcf_ematch *em) +{ + return (em->flags & TCF_EM_REL_MASK) == TCF_EM_REL_END; +} + +static inline int tcf_em_early_end(struct tcf_ematch *em, int result) +{ + if (tcf_em_last_match(em)) + return 1; + + if (result == 0 && em->flags & TCF_EM_REL_AND) + return 1; + + if (result != 0 && em->flags & TCF_EM_REL_OR) + return 1; + + return 0; +} + +/** + * struct tcf_ematch_tree - ematch tree handle + * + * @hdr: ematch tree header supplied by userspace + * @matches: array of ematches + */ +struct tcf_ematch_tree { + struct tcf_ematch_tree_hdr hdr; + struct tcf_ematch * matches; + +}; + +/** + * struct tcf_ematch_ops - ematch module operations + * + * @kind: identifier (kind) of this ematch module + * @datalen: length of expected configuration data (optional) + * @change: called during validation (optional) + * @match: called during ematch tree evaluation, must return 1/0 + * @destroy: called during destroyage (optional) + * @dump: called during dumping process (optional) + * @owner: owner, must be set to THIS_MODULE + * @link: link to previous/next ematch module (internal use) + */ +struct tcf_ematch_ops { + int kind; + int datalen; + int (*change)(struct net *net, void *, + int, struct tcf_ematch *); + int (*match)(struct sk_buff *, struct tcf_ematch *, + struct tcf_pkt_info *); + void (*destroy)(struct tcf_ematch *); + int (*dump)(struct sk_buff *, struct tcf_ematch *); + struct module *owner; + struct list_head link; +}; + +int tcf_em_register(struct tcf_ematch_ops *); +void tcf_em_unregister(struct tcf_ematch_ops *); +int tcf_em_tree_validate(struct tcf_proto *, struct nlattr *, + struct tcf_ematch_tree *); +void tcf_em_tree_destroy(struct tcf_ematch_tree *); +int tcf_em_tree_dump(struct sk_buff *, struct tcf_ematch_tree *, int); +int __tcf_em_tree_match(struct sk_buff *, struct tcf_ematch_tree *, + struct tcf_pkt_info *); + +/** + * tcf_em_tree_match - evaulate an ematch tree + * + * @skb: socket buffer of the packet in question + * @tree: ematch tree to be used for evaluation + * @info: packet information examined by classifier + * + * This function matches @skb against the ematch tree in @tree by going + * through all ematches respecting their logic relations returning + * as soon as the result is obvious. + * + * Returns 1 if the ematch tree as-one matches, no ematches are configured + * or ematch is not enabled in the kernel, otherwise 0 is returned. + */ +static inline int tcf_em_tree_match(struct sk_buff *skb, + struct tcf_ematch_tree *tree, + struct tcf_pkt_info *info) +{ + if (tree->hdr.nmatches) + return __tcf_em_tree_match(skb, tree, info); + else + return 1; +} + +#define MODULE_ALIAS_TCF_EMATCH(kind) MODULE_ALIAS("ematch-kind-" __stringify(kind)) + +#else /* CONFIG_NET_EMATCH */ + +struct tcf_ematch_tree { +}; + +#define tcf_em_tree_validate(tp, tb, t) ((void)(t), 0) +#define tcf_em_tree_destroy(t) do { (void)(t); } while(0) +#define tcf_em_tree_dump(skb, t, tlv) (0) +#define tcf_em_tree_match(skb, t, info) ((void)(info), 1) + +#endif /* CONFIG_NET_EMATCH */ + +static inline unsigned char * tcf_get_base_ptr(struct sk_buff *skb, int layer) +{ + switch (layer) { + case TCF_LAYER_LINK: + return skb_mac_header(skb); + case TCF_LAYER_NETWORK: + return skb_network_header(skb); + case TCF_LAYER_TRANSPORT: + return skb_transport_header(skb); + } + + return NULL; +} + +static inline int tcf_valid_offset(const struct sk_buff *skb, + const unsigned char *ptr, const int len) +{ + return likely((ptr + len) <= skb_tail_pointer(skb) && + ptr >= skb->head && + (ptr <= (ptr + len))); +} + +#ifdef CONFIG_NET_CLS_IND +#include <net/net_namespace.h> + +static inline int +tcf_change_indev(struct net *net, struct nlattr *indev_tlv, + struct netlink_ext_ack *extack) +{ + char indev[IFNAMSIZ]; + struct net_device *dev; + + if (nla_strlcpy(indev, indev_tlv, IFNAMSIZ) >= IFNAMSIZ) { + NL_SET_ERR_MSG(extack, "Interface name too long"); + return -EINVAL; + } + dev = __dev_get_by_name(net, indev); + if (!dev) + return -ENODEV; + return dev->ifindex; +} + +static inline bool +tcf_match_indev(struct sk_buff *skb, int ifindex) +{ + if (!ifindex) + return true; + if (!skb->skb_iif) + return false; + return ifindex == skb->skb_iif; +} +#endif /* CONFIG_NET_CLS_IND */ + +int tc_setup_cb_call(struct tcf_block *block, struct tcf_exts *exts, + enum tc_setup_type type, void *type_data, bool err_stop); + +enum tc_block_command { + TC_BLOCK_BIND, + TC_BLOCK_UNBIND, +}; + +struct tc_block_offload { + enum tc_block_command command; + enum tcf_block_binder_type binder_type; + struct tcf_block *block; + struct netlink_ext_ack *extack; +}; + +struct tc_cls_common_offload { + u32 chain_index; + __be16 protocol; + u32 prio; + struct netlink_ext_ack *extack; +}; + +struct tc_cls_u32_knode { + struct tcf_exts *exts; + struct tc_u32_sel *sel; + u32 handle; + u32 val; + u32 mask; + u32 link_handle; + u8 fshift; +}; + +struct tc_cls_u32_hnode { + u32 handle; + u32 prio; + unsigned int divisor; +}; + +enum tc_clsu32_command { + TC_CLSU32_NEW_KNODE, + TC_CLSU32_REPLACE_KNODE, + TC_CLSU32_DELETE_KNODE, + TC_CLSU32_NEW_HNODE, + TC_CLSU32_REPLACE_HNODE, + TC_CLSU32_DELETE_HNODE, +}; + +struct tc_cls_u32_offload { + struct tc_cls_common_offload common; + /* knode values */ + enum tc_clsu32_command command; + union { + struct tc_cls_u32_knode knode; + struct tc_cls_u32_hnode hnode; + }; +}; + +static inline bool tc_can_offload(const struct net_device *dev) +{ + return dev->features & NETIF_F_HW_TC; +} + +static inline bool tc_can_offload_extack(const struct net_device *dev, + struct netlink_ext_ack *extack) +{ + bool can = tc_can_offload(dev); + + if (!can) + NL_SET_ERR_MSG(extack, "TC offload is disabled on net device"); + + return can; +} + +static inline bool +tc_cls_can_offload_and_chain0(const struct net_device *dev, + struct tc_cls_common_offload *common) +{ + if (!tc_can_offload_extack(dev, common->extack)) + return false; + if (common->chain_index) { + NL_SET_ERR_MSG(common->extack, + "Driver supports only offload of chain 0"); + return false; + } + return true; +} + +static inline bool tc_skip_hw(u32 flags) +{ + return (flags & TCA_CLS_FLAGS_SKIP_HW) ? true : false; +} + +static inline bool tc_skip_sw(u32 flags) +{ + return (flags & TCA_CLS_FLAGS_SKIP_SW) ? true : false; +} + +/* SKIP_HW and SKIP_SW are mutually exclusive flags. */ +static inline bool tc_flags_valid(u32 flags) +{ + if (flags & ~(TCA_CLS_FLAGS_SKIP_HW | TCA_CLS_FLAGS_SKIP_SW | + TCA_CLS_FLAGS_VERBOSE)) + return false; + + flags &= TCA_CLS_FLAGS_SKIP_HW | TCA_CLS_FLAGS_SKIP_SW; + if (!(flags ^ (TCA_CLS_FLAGS_SKIP_HW | TCA_CLS_FLAGS_SKIP_SW))) + return false; + + return true; +} + +static inline bool tc_in_hw(u32 flags) +{ + return (flags & TCA_CLS_FLAGS_IN_HW) ? true : false; +} + +static inline void +tc_cls_common_offload_init(struct tc_cls_common_offload *cls_common, + const struct tcf_proto *tp, u32 flags, + struct netlink_ext_ack *extack) +{ + cls_common->chain_index = tp->chain->index; + cls_common->protocol = tp->protocol; + cls_common->prio = tp->prio; + if (tc_skip_sw(flags) || flags & TCA_CLS_FLAGS_VERBOSE) + cls_common->extack = extack; +} + +enum tc_fl_command { + TC_CLSFLOWER_REPLACE, + TC_CLSFLOWER_DESTROY, + TC_CLSFLOWER_STATS, + TC_CLSFLOWER_TMPLT_CREATE, + TC_CLSFLOWER_TMPLT_DESTROY, +}; + +struct tc_cls_flower_offload { + struct tc_cls_common_offload common; + enum tc_fl_command command; + unsigned long cookie; + struct flow_dissector *dissector; + struct fl_flow_key *mask; + struct fl_flow_key *key; + struct tcf_exts *exts; + u32 classid; +}; + +enum tc_matchall_command { + TC_CLSMATCHALL_REPLACE, + TC_CLSMATCHALL_DESTROY, +}; + +struct tc_cls_matchall_offload { + struct tc_cls_common_offload common; + enum tc_matchall_command command; + struct tcf_exts *exts; + unsigned long cookie; +}; + +enum tc_clsbpf_command { + TC_CLSBPF_OFFLOAD, + TC_CLSBPF_STATS, +}; + +struct tc_cls_bpf_offload { + struct tc_cls_common_offload common; + enum tc_clsbpf_command command; + struct tcf_exts *exts; + struct bpf_prog *prog; + struct bpf_prog *oldprog; + const char *name; + bool exts_integrated; +}; + +struct tc_mqprio_qopt_offload { + /* struct tc_mqprio_qopt must always be the first element */ + struct tc_mqprio_qopt qopt; + u16 mode; + u16 shaper; + u32 flags; + u64 min_rate[TC_QOPT_MAX_QUEUE]; + u64 max_rate[TC_QOPT_MAX_QUEUE]; +}; + +/* This structure holds cookie structure that is passed from user + * to the kernel for actions and classifiers + */ +struct tc_cookie { + u8 *data; + u32 len; + struct rcu_head rcu; +}; + +struct tc_qopt_offload_stats { + struct gnet_stats_basic_packed *bstats; + struct gnet_stats_queue *qstats; +}; + +enum tc_mq_command { + TC_MQ_CREATE, + TC_MQ_DESTROY, + TC_MQ_STATS, +}; + +struct tc_mq_qopt_offload { + enum tc_mq_command command; + u32 handle; + struct tc_qopt_offload_stats stats; +}; + +enum tc_red_command { + TC_RED_REPLACE, + TC_RED_DESTROY, + TC_RED_STATS, + TC_RED_XSTATS, +}; + +struct tc_red_qopt_offload_params { + u32 min; + u32 max; + u32 probability; + bool is_ecn; + struct gnet_stats_queue *qstats; +}; + +struct tc_red_qopt_offload { + enum tc_red_command command; + u32 handle; + u32 parent; + union { + struct tc_red_qopt_offload_params set; + struct tc_qopt_offload_stats stats; + struct red_stats *xstats; + }; +}; + +enum tc_prio_command { + TC_PRIO_REPLACE, + TC_PRIO_DESTROY, + TC_PRIO_STATS, + TC_PRIO_GRAFT, +}; + +struct tc_prio_qopt_offload_params { + int bands; + u8 priomap[TC_PRIO_MAX + 1]; + /* In case that a prio qdisc is offloaded and now is changed to a + * non-offloadedable config, it needs to update the backlog & qlen + * values to negate the HW backlog & qlen values (and only them). + */ + struct gnet_stats_queue *qstats; +}; + +struct tc_prio_qopt_offload_graft_params { + u8 band; + u32 child_handle; +}; + +struct tc_prio_qopt_offload { + enum tc_prio_command command; + u32 handle; + u32 parent; + union { + struct tc_prio_qopt_offload_params replace_params; + struct tc_qopt_offload_stats stats; + struct tc_prio_qopt_offload_graft_params graft_params; + }; +}; + +#endif |