X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=ofproto%2Fofproto-dpif-xlate.h;h=760736a645d984859e63a4385491b17880230c58;hb=92c08f09804c4a32ecc5f24473f3e15cbbdb1d5e;hp=bffd21727882890c3535aacac8381bb047b55d7a;hpb=9583bc14430acc0578c1d00a78143c01d9cf7bee;p=sliver-openvswitch.git diff --git a/ofproto/ofproto-dpif-xlate.h b/ofproto/ofproto-dpif-xlate.h index bffd21727..760736a64 100644 --- a/ofproto/ofproto-dpif-xlate.h +++ b/ofproto/ofproto-dpif-xlate.h @@ -12,21 +12,32 @@ * See the License for the specific language governing permissions and * limitations under the License. */ -#ifndef OFPROT_DPIF_XLATE_H -#define OFPROT_DPIF_XLATE_H 1 +#ifndef OFPROTO_DPIF_XLATE_H +#define OFPROTO_DPIF_XLATE_H 1 #include "flow.h" #include "meta-flow.h" #include "odp-util.h" #include "ofpbuf.h" +#include "ofproto-dpif-mirror.h" #include "ofproto-dpif.h" -#include "tag.h" - -/* Maximum depth of flow table recursion (due to resubmit actions) in a - * flow translation. */ -#define MAX_RESUBMIT_RECURSION 64 - -struct xlate_ctx; +#include "ofproto.h" +#include "stp.h" + +struct bfd; +struct bond; +struct dpif; +struct lacp; +struct dpif_ipfix; +struct dpif_sflow; +struct mac_learning; +struct xlate_cache; + +struct xlate_recirc { + uint32_t recirc_id; /* !0 Use recirculation instead of output. */ + uint8_t hash_alg; /* !0 Compute hash for recirc before. */ + uint32_t hash_basis; /* Compute hash for recirc before. */ +}; struct xlate_out { /* Wildcards relevant in translation. Any fields that were used to @@ -38,12 +49,12 @@ struct xlate_out { * set. */ struct flow_wildcards wc; - tag_type tags; /* Tags associated with actions. */ enum slow_path_reason slow; /* 0 if fast path may be used. */ + bool fail_open; /* Initial rule is fail open? */ bool has_learn; /* Actions include NXAST_LEARN? */ bool has_normal; /* Actions output to OFPP_NORMAL? */ bool has_fin_timeout; /* Actions include NXAST_FIN_TIMEOUT? */ - uint16_t nf_output_iface; /* Output interface index for NetFlow. */ + ofp_port_t nf_output_iface; /* Output interface index for NetFlow. */ mirror_mask_t mirrors; /* Bitmap of associated mirrors. */ uint64_t odp_actions_stub[256 / 8]; @@ -69,7 +80,14 @@ struct xlate_in { * not if we are just revalidating. */ bool may_learn; - /* The rule initiating translation or NULL. */ + /* If the caller of xlate_actions() doesn't need the flow_wildcards + * contained in struct xlate_out. 'skip_wildcards' can be set to true + * disabling the expensive wildcard computation. When true, 'wc' in struct + * xlate_out is undefined and should not be read. */ + bool skip_wildcards; + + /* The rule initiating translation or NULL. If both 'rule' and 'ofpacts' + * are NULL, xlate_actions() will do the initial rule lookup itself. */ struct rule_dpif *rule; /* The actions to translate. If 'rule' is not NULL, these may be NULL. */ @@ -79,7 +97,7 @@ struct xlate_in { /* Union of the set of TCP flags seen so far in this flow. (Used only by * NXAST_FIN_TIMEOUT. Set to zero to avoid updating updating rules' * timeouts.) */ - uint8_t tcp_flags; + uint16_t tcp_flags; /* If nonnull, flow translation calls this function just before executing a * resubmit or OFPP_TABLE action. In addition, disables logging of traces @@ -88,14 +106,18 @@ struct xlate_in { * 'rule' is the rule being submitted into. It will be null if the * resubmit or OFPP_TABLE action didn't find a matching rule. * + * 'recurse' is the resubmit recursion depth at time of invocation. + * * This is normally null so the client has to set it manually after * calling xlate_in_init(). */ - void (*resubmit_hook)(struct xlate_ctx *, struct rule_dpif *rule); + void (*resubmit_hook)(struct xlate_in *, struct rule_dpif *rule, + int recurse); /* If nonnull, flow translation calls this function to report some * significant decision, e.g. to explain why OFPP_NORMAL translation - * dropped a packet. */ - void (*report_hook)(struct xlate_ctx *, const char *s); + * dropped a packet. 'recurse' is the resubmit recursion depth at time of + * invocation. */ + void (*report_hook)(struct xlate_in *, const char *s, int recurse); /* If nonnull, flow translation credits the specified statistics to each * rule reached through a resubmit or OFPP_TABLE action. @@ -103,50 +125,71 @@ struct xlate_in { * This is normally null so the client has to set it manually after * calling xlate_in_init(). */ const struct dpif_flow_stats *resubmit_stats; -}; - -/* Context used by xlate_actions() and its callees. */ -struct xlate_ctx { - struct xlate_in *xin; - struct xlate_out *xout; - - struct ofproto_dpif *ofproto; - - /* Flow at the last commit. */ - struct flow base_flow; - /* Tunnel IP destination address as received. This is stored separately - * as the base_flow.tunnel is cleared on init to reflect the datapath - * behavior. Used to make sure not to send tunneled output to ourselves, - * which might lead to an infinite loop. This could happen easily - * if a tunnel is marked as 'ip_remote=flow', and the flow does not - * actually set the tun_dst field. */ - ovs_be32 orig_tunnel_ip_dst; - - /* Stack for the push and pop actions. Each stack element is of type - * "union mf_subvalue". */ - union mf_subvalue init_stack[1024 / sizeof(union mf_subvalue)]; - struct ofpbuf stack; - - /* The rule that we are currently translating, or NULL. */ - struct rule_dpif *rule; - - int recurse; /* Recursion level, via xlate_table_action. */ - bool max_resubmit_trigger; /* Recursed too deeply during translation. */ - uint32_t orig_skb_priority; /* Priority when packet arrived. */ - uint8_t table_id; /* OpenFlow table ID where flow was found. */ - uint32_t sflow_n_outputs; /* Number of output ports. */ - uint32_t sflow_odp_port; /* Output port for composing sFlow action. */ - uint16_t user_cookie_offset;/* Used for user_action_cookie fixup. */ - bool exit; /* No further actions should be processed. */ + /* If nonnull, flow translation populates this cache with references to all + * modules that are affected by translation. This 'xlate_cache' may be + * passed to xlate_push_stats() to perform the same function as + * xlate_actions() without the full cost of translation. + * + * This is normally null so the client has to set it manually after + * calling xlate_in_init(). */ + struct xlate_cache *xcache; }; -void xlate_actions(struct xlate_in *, struct xlate_out *); +extern struct ovs_rwlock xlate_rwlock; + +void xlate_ofproto_set(struct ofproto_dpif *, const char *name, + struct dpif *, struct rule_dpif *miss_rule, + struct rule_dpif *no_packet_in_rule, + const struct mac_learning *, struct stp *, + const struct mbridge *, const struct dpif_sflow *, + const struct dpif_ipfix *, const struct netflow *, + enum ofp_config_flags, bool forward_bpdu, + bool has_in_band, bool enable_recirc, + bool variable_length_userdata, + size_t mpls_label_stack_length) + OVS_REQ_WRLOCK(xlate_rwlock); +void xlate_remove_ofproto(struct ofproto_dpif *) OVS_REQ_WRLOCK(xlate_rwlock); + +void xlate_bundle_set(struct ofproto_dpif *, struct ofbundle *, + const char *name, enum port_vlan_mode, int vlan, + unsigned long *trunks, bool use_priority_tags, + const struct bond *, const struct lacp *, + bool floodable) OVS_REQ_WRLOCK(xlate_rwlock); +void xlate_bundle_remove(struct ofbundle *) OVS_REQ_WRLOCK(xlate_rwlock); + +void xlate_ofport_set(struct ofproto_dpif *, struct ofbundle *, + struct ofport_dpif *, ofp_port_t, odp_port_t, + const struct netdev *, const struct cfm *, + const struct bfd *, struct ofport_dpif *peer, + int stp_port_no, const struct ofproto_port_queue *qdscp, + size_t n_qdscp, enum ofputil_port_config, + enum ofputil_port_state, bool is_tunnel, + bool may_enable) OVS_REQ_WRLOCK(xlate_rwlock); +void xlate_ofport_remove(struct ofport_dpif *) OVS_REQ_WRLOCK(xlate_rwlock); + +int xlate_receive(const struct dpif_backer *, struct ofpbuf *packet, + const struct nlattr *key, size_t key_len, + struct flow *, struct ofproto_dpif **, struct dpif_ipfix **, + struct dpif_sflow **, struct netflow **, + odp_port_t *odp_in_port) + OVS_EXCLUDED(xlate_rwlock); + +void xlate_actions(struct xlate_in *, struct xlate_out *) + OVS_EXCLUDED(xlate_rwlock); void xlate_in_init(struct xlate_in *, struct ofproto_dpif *, const struct flow *, struct rule_dpif *, - uint8_t tcp_flags, const struct ofpbuf *packet); + uint16_t tcp_flags, const struct ofpbuf *packet); void xlate_out_uninit(struct xlate_out *); void xlate_actions_for_side_effects(struct xlate_in *); void xlate_out_copy(struct xlate_out *dst, const struct xlate_out *src); +int xlate_send_packet(const struct ofport_dpif *, struct ofpbuf *); + +struct xlate_cache *xlate_cache_new(void); +void xlate_push_stats(struct xlate_cache *, bool may_learn, + const struct dpif_flow_stats *); +void xlate_cache_clear(struct xlate_cache *); +void xlate_cache_delete(struct xlate_cache *); + #endif /* ofproto-dpif-xlate.h */