X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=lib%2Fnx-match.h;h=edd79481a5d3b3a1ebc61491f11187146a5306a7;hb=003ce655b7116d18c86a74c50391e54990346931;hp=64e22c9b57540493c923581fa1dd6e8ffe953447;hpb=6a885fd0589fdfa3b5d05ca3ff4af52b085a1816;p=sliver-openvswitch.git diff --git a/lib/nx-match.h b/lib/nx-match.h index 64e22c9b5..edd79481a 100644 --- a/lib/nx-match.h +++ b/lib/nx-match.h @@ -1,5 +1,5 @@ /* - * Copyright (c) 2010, 2011 Nicira Networks. + * Copyright (c) 2010, 2011, 2012, 2013, 2014 Nicira, Inc. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. @@ -20,58 +20,106 @@ #include #include #include +#include "compiler.h" +#include "flow.h" +#include "ofp-errors.h" #include "openvswitch/types.h" -struct cls_rule; struct ds; -struct flow; +struct match; +struct mf_field; +struct mf_subfield; +struct ofpact_reg_move; +struct ofpact_reg_load; +struct ofpact_stack; struct ofpbuf; struct nx_action_reg_load; struct nx_action_reg_move; + /* Nicira Extended Match (NXM) flexible flow match helper functions. * * See include/openflow/nicira-ext.h for NXM specification. */ -int nx_pull_match(struct ofpbuf *, unsigned int match_len, uint16_t priority, - struct cls_rule *); -int nx_put_match(struct ofpbuf *, const struct cls_rule *); +enum ofperr nx_pull_match(struct ofpbuf *, unsigned int match_len, + struct match *, + ovs_be64 *cookie, ovs_be64 *cookie_mask); +enum ofperr nx_pull_match_loose(struct ofpbuf *, unsigned int match_len, + struct match *, ovs_be64 *cookie, + ovs_be64 *cookie_mask); +enum ofperr oxm_pull_match(struct ofpbuf *, struct match *); +enum ofperr oxm_pull_match_loose(struct ofpbuf *, struct match *); +int nx_put_match(struct ofpbuf *, const struct match *, + ovs_be64 cookie, ovs_be64 cookie_mask); +int oxm_put_match(struct ofpbuf *, const struct match *); char *nx_match_to_string(const uint8_t *, unsigned int match_len); +char *oxm_match_to_string(const struct ofpbuf *, unsigned int match_len); int nx_match_from_string(const char *, struct ofpbuf *); - -uint64_t nxm_read_field_bits(ovs_be32 header, ovs_be16 ofs_nbits, - const struct flow *); - -void nxm_parse_reg_move(struct nx_action_reg_move *, const char *); -void nxm_parse_reg_load(struct nx_action_reg_load *, const char *); - -void nxm_format_reg_move(const struct nx_action_reg_move *, struct ds *); -void nxm_format_reg_load(const struct nx_action_reg_load *, struct ds *); - -int nxm_check_reg_move(const struct nx_action_reg_move *, const struct flow *); -int nxm_check_reg_load(const struct nx_action_reg_load *, const struct flow *); -int nxm_src_check(ovs_be32 src, unsigned int ofs, unsigned int n_bits, - const struct flow *); -int nxm_dst_check(ovs_be32 dst, unsigned int ofs, unsigned int n_bits, - const struct flow *); - -void nxm_execute_reg_move(const struct nx_action_reg_move *, struct flow *); -void nxm_execute_reg_load(const struct nx_action_reg_load *, struct flow *); -void nxm_reg_load(ovs_be32 dst, ovs_be16 ofs_nbits, uint64_t src_data, - struct flow *); +int oxm_match_from_string(const char *, struct ofpbuf *); + +char *nxm_parse_reg_move(struct ofpact_reg_move *, const char *) + WARN_UNUSED_RESULT; +char *nxm_parse_reg_load(struct ofpact_reg_load *, const char *) + WARN_UNUSED_RESULT; + +void nxm_format_reg_move(const struct ofpact_reg_move *, struct ds *); +void nxm_format_reg_load(const struct ofpact_reg_load *, struct ds *); + +enum ofperr nxm_reg_move_from_openflow(const struct nx_action_reg_move *, + struct ofpbuf *ofpacts); +enum ofperr nxm_reg_load_from_openflow(const struct nx_action_reg_load *, + struct ofpbuf *ofpacts); + +enum ofperr nxm_reg_move_check(const struct ofpact_reg_move *, + const struct flow *); +enum ofperr nxm_reg_load_check(const struct ofpact_reg_load *, + const struct flow *); + +void nxm_reg_move_to_nxast(const struct ofpact_reg_move *, + struct ofpbuf *openflow); +void nxm_reg_load_to_nxast(const struct ofpact_reg_load *, + struct ofpbuf *openflow); + +void nxm_execute_reg_move(const struct ofpact_reg_move *, struct flow *, + struct flow_wildcards *); +void nxm_execute_reg_load(const struct ofpact_reg_load *, struct flow *, + struct flow_wildcards *); +void nxm_reg_load(const struct mf_subfield *, uint64_t src_data, + struct flow *, struct flow_wildcards *); + +char *nxm_parse_stack_action(struct ofpact_stack *, const char *) + WARN_UNUSED_RESULT; + +void nxm_format_stack_push(const struct ofpact_stack *, struct ds *); +void nxm_format_stack_pop(const struct ofpact_stack *, struct ds *); + +enum ofperr nxm_stack_push_from_openflow(const struct nx_action_stack *, + struct ofpbuf *ofpacts); +enum ofperr nxm_stack_pop_from_openflow(const struct nx_action_stack *, + struct ofpbuf *ofpacts); +enum ofperr nxm_stack_push_check(const struct ofpact_stack *, + const struct flow *); +enum ofperr nxm_stack_pop_check(const struct ofpact_stack *, + const struct flow *); + +void nxm_stack_push_to_nxast(const struct ofpact_stack *, + struct ofpbuf *openflow); +void nxm_stack_pop_to_nxast(const struct ofpact_stack *, + struct ofpbuf *openflow); + +void nxm_execute_stack_push(const struct ofpact_stack *, + const struct flow *, struct flow_wildcards *, + struct ofpbuf *); +void nxm_execute_stack_pop(const struct ofpact_stack *, + struct flow *, struct flow_wildcards *, + struct ofpbuf *); int nxm_field_bytes(uint32_t header); int nxm_field_bits(uint32_t header); -const struct mf_field *nxm_field_to_mf_field(uint32_t header); -const char *nxm_parse_field_bits(const char *s, - uint32_t *headerp, int *ofsp, int *n_bitsp); -void nxm_format_field_bits(struct ds *, uint32_t header, int ofs, int n_bits); - -/* Dealing with the 'ofs_nbits' members of struct nx_action_reg_load and struct - * nx_action_multipath. */ +/* Dealing with the 'ofs_nbits' members in several Nicira extensions. */ static inline ovs_be16 nxm_encode_ofs_nbits(int ofs, int n_bits) @@ -91,36 +139,6 @@ nxm_decode_n_bits(ovs_be16 ofs_nbits) return (ntohs(ofs_nbits) & 0x3f) + 1; } -/* Upper bound on the length of an nx_match. The longest nx_match (assuming - * we implement 4 registers) would be: - * - * header value mask total - * ------ ----- ---- ----- - * NXM_OF_IN_PORT 4 2 -- 6 - * NXM_OF_ETH_DST_W 4 6 6 16 - * NXM_OF_ETH_SRC 4 6 -- 10 - * NXM_OF_ETH_TYPE 4 2 -- 6 - * NXM_OF_VLAN_TCI 4 2 2 8 - * NXM_OF_IP_TOS 4 1 -- 5 - * NXM_OF_IP_PROTO 4 2 -- 6 - * NXM_OF_IPV6_SRC_W 4 16 16 36 - * NXM_OF_IPV6_DST_W 4 16 16 36 - * NXM_OF_ICMP_TYPE 4 1 -- 5 - * NXM_OF_ICMP_CODE 4 1 -- 5 - * NXM_NX_ND_TARGET 4 16 -- 20 - * NXM_NX_ND_SLL 4 6 -- 10 - * NXM_NX_REG_W(0) 4 4 4 12 - * NXM_NX_REG_W(1) 4 4 4 12 - * NXM_NX_REG_W(2) 4 4 4 12 - * NXM_NX_REG_W(3) 4 4 4 12 - * NXM_NX_TUN_ID_W 4 8 8 20 - * ------------------------------------------- - * total 237 - * - * So this value is conservative. - */ -#define NXM_MAX_LEN 256 - /* This is my guess at the length of a "typical" nx_match, for use in * predicting space requirements. */ #define NXM_TYPICAL_LEN 64