X-Git-Url: http://git.cascardo.eti.br/?a=blobdiff_plain;f=lib%2Fnx-match.h;h=6248b2a4d8f10a38e45cfbb7745518f9d93991b0;hb=f25d0cf3c366;hp=346604e4d0b927870374b00c4912ac24392bca05;hpb=fa8223b7fd02890647eb2bf3d3b5b27ee4d32a21;p=cascardo%2Fovs.git diff --git a/lib/nx-match.h b/lib/nx-match.h index 346604e4d..6248b2a4d 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 Nicira, Inc. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. @@ -20,11 +20,17 @@ #include #include #include +#include "flow.h" +#include "ofp-errors.h" #include "openvswitch/types.h" +#include "ofp-errors.h" struct cls_rule; struct ds; struct flow; +struct mf_subfield; +struct ofpact_reg_move; +struct ofpact_reg_load; struct ofpbuf; struct nx_action_reg_load; struct nx_action_reg_move; @@ -34,44 +40,48 @@ struct nx_action_reg_move; * 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, + uint16_t priority, struct cls_rule *, + ovs_be64 *cookie, ovs_be64 *cookie_mask); +enum ofperr nx_pull_match_loose(struct ofpbuf *, unsigned int match_len, + uint16_t priority, struct cls_rule *, + ovs_be64 *cookie, ovs_be64 *cookie_mask); +int nx_put_match(struct ofpbuf *, bool oxm, const struct cls_rule *, + ovs_be64 cookie, ovs_be64 cookie_mask); char *nx_match_to_string(const uint8_t *, 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 ofpact_reg_move *, const char *); +void nxm_parse_reg_load(struct ofpact_reg_load *, const char *); -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 ofpact_reg_move *, struct ds *); +void nxm_format_reg_load(const struct ofpact_reg_load *, struct ds *); -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 *); +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); -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 *); +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_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, +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 *); +void nxm_execute_reg_load(const struct ofpact_reg_load *, struct flow *); +void nxm_reg_load(const struct mf_subfield *, uint64_t src_data, struct flow *); 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) @@ -91,17 +101,20 @@ nxm_decode_n_bits(ovs_be16 ofs_nbits) return (ntohs(ofs_nbits) & 0x3f) + 1; } +BUILD_ASSERT_DECL(FLOW_WC_SEQ == 12); /* Upper bound on the length of an nx_match. The longest nx_match (an - * IPV6 neighbor discovery message using 5 registers) would be: + * IPV6 neighbor discovery message using all the 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_SRC_W 4 6 6 16 * NXM_OF_ETH_TYPE 4 2 -- 6 * NXM_OF_VLAN_TCI 4 2 2 8 * NXM_OF_IP_TOS 4 1 -- 5 + * NXM_NX_IP_ECN 4 1 -- 5 + * NXM_OF_IP_TTL 4 1 -- 5 * NXM_NX_IP_FRAG 4 1 1 8 * NXM_OF_IP_PROTO 4 2 -- 6 * NXM_OF_IPV6_SRC_W 4 16 16 36 @@ -109,20 +122,24 @@ nxm_decode_n_bits(ovs_be16 ofs_nbits) * NXM_OF_IPV6_LABEL 4 4 -- 8 * NXM_OF_ICMP_TYPE 4 1 -- 5 * NXM_OF_ICMP_CODE 4 1 -- 5 - * NXM_NX_ND_TARGET 4 16 -- 20 + * NXM_NX_ND_TARGET 4 16 16 36 * 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_REG_W(4) 4 4 4 12 + * NXM_NX_REG_W(5) 4 4 4 12 + * NXM_NX_REG_W(6) 4 4 4 12 + * NXM_NX_REG_W(7) 4 4 4 12 * NXM_NX_TUN_ID_W 4 8 8 20 + * OXM_OF_METADATA 4 8 8 20 * ------------------------------------------- - * total 265 + * total 353 * * So this value is conservative. */ -#define NXM_MAX_LEN 384 +#define NXM_MAX_LEN 400 /* This is my guess at the length of a "typical" nx_match, for use in * predicting space requirements. */