diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/openflow/nicira-ext.h | 31 |
1 files changed, 29 insertions, 2 deletions
diff --git a/include/openflow/nicira-ext.h b/include/openflow/nicira-ext.h index f449329f..1dcd32b5 100644 --- a/include/openflow/nicira-ext.h +++ b/include/openflow/nicira-ext.h @@ -1641,6 +1641,22 @@ OFP_ASSERT(sizeof(struct nx_action_output_reg) == 24); * Masking: Not maskable. */ #define NXM_NX_IP_TTL NXM_HEADER (0x0001, 29, 1) +/* Flow cookie. + * + * This may be used to gain the OpenFlow 1.1-like ability to restrict + * certain NXM-based Flow Mod and Flow Stats Request messages to flows + * with specific cookies. See the "nx_flow_mod" and "nx_flow_stats_request" + * structure definitions for more details. This match is otherwise not + * allowed. + * + * Prereqs: None. + * + * Format: 64-bit integer in network byte order. + * + * Masking: Arbitrary masks. */ +#define NXM_NX_COOKIE NXM_HEADER (0x0001, 30, 8) +#define NXM_NX_COOKIE_W NXM_HEADER_W(0x0001, 30, 8) + /* ## --------------------- ## */ /* ## Requests and replies. ## */ /* ## --------------------- ## */ @@ -1659,7 +1675,14 @@ struct nxt_set_flow_format { }; OFP_ASSERT(sizeof(struct nxt_set_flow_format) == 20); -/* NXT_FLOW_MOD (analogous to OFPT_FLOW_MOD). */ +/* NXT_FLOW_MOD (analogous to OFPT_FLOW_MOD). + * + * It is possible to limit flow deletions and modifications to certain + * cookies by using the NXM_NX_COOKIE and NXM_NX_COOKIE_W matches. For + * these commands, the "cookie" field is always ignored. Flow additions + * make use of the "cookie" field and ignore any NXM_NX_COOKIE* + * definitions. + */ struct nx_flow_mod { struct nicira_header nxh; ovs_be64 cookie; /* Opaque controller-issued identifier. */ @@ -1708,7 +1731,11 @@ struct nx_flow_removed { OFP_ASSERT(sizeof(struct nx_flow_removed) == 56); /* Nicira vendor stats request of type NXST_FLOW (analogous to OFPST_FLOW - * request). */ + * request). + * + * It is possible to limit matches to certain cookies by using the + * NXM_NX_COOKIE and NXM_NX_COOKIE_W matches. + */ struct nx_flow_stats_request { struct nicira_stats_msg nsm; ovs_be16 out_port; /* Require matching entries to include this |