v4.19.13 snapshot.
diff --git a/include/net/pkt_cls.h b/include/net/pkt_cls.h
new file mode 100644
index 0000000..75a3f3f
--- /dev/null
+++ b/include/net/pkt_cls.h
@@ -0,0 +1,867 @@
+/* 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 unsigned long
+cls_set_class(struct Qdisc *q, unsigned long *clp, unsigned long cl)
+{
+ unsigned long old_cl;
+
+ sch_tree_lock(q);
+ old_cl = __cls_set_class(clp, cl);
+ sch_tree_unlock(q);
+ return old_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;
+ unsigned long cl;
+
+ /* Check q as it is not set for shared blocks. In that case,
+ * setting class is not supported.
+ */
+ if (!q)
+ return;
+ cl = q->ops->cl_ops->bind_tcf(q, base, r->classid);
+ cl = cls_set_class(q, &r->class, cl);
+ if (cl)
+ 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;
+ unsigned long cl;
+
+ if (!q)
+ return;
+ if ((cl = __cls_set_class(&r->class, 0)) != 0)
+ q->ops->cl_ops->unbind_tcf(q, cl);
+}
+
+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