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lib/flow: add dp_hash and recirc_id to struct flow

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Signed-off-by: Andy Zhou <azhou@nicira.com>
Acked-by: Ben Pfaff <blp@nicira.com>
This commit is contained in:
Andy Zhou
2014-03-04 14:20:19 -08:00
parent a0cbddc04b
commit a79f29f20e
10 changed files with 158 additions and 9 deletions
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13
lib/flow.h
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@@ -37,7 +37,7 @@ struct pkt_metadata;
/* This sequence number should be incremented whenever anything involving flows
* or the wildcarding of flows changes. This will cause build assertion
* failures in places which likely need to be updated. */
#define FLOW_WC_SEQ 24
#define FLOW_WC_SEQ 25
#define FLOW_N_REGS 8
BUILD_ASSERT_DECL(FLOW_N_REGS <= NXM_NX_MAX_REGS);
@@ -97,6 +97,11 @@ union flow_in_port {
* be looked at. This enables better wildcarding for datapath flows.
*/
struct flow {
/* Recirculation */
uint32_t dp_hash; /* Datapath computed hash value. The exact
computation is opaque to the user space.*/
uint32_t recirc_id; /* Must be exact match. */
/* L1 */
struct flow_tnl tunnel; /* Encapsulating tunnel parameters. */
ovs_be64 metadata; /* OpenFlow Metadata. */
@@ -139,8 +144,8 @@ BUILD_ASSERT_DECL(sizeof(struct flow) % 4 == 0);
/* Remember to update FLOW_WC_SEQ when changing 'struct flow'. */
BUILD_ASSERT_DECL(offsetof(struct flow, tp_dst) + 2
== sizeof(struct flow_tnl) + 164
&& FLOW_WC_SEQ == 24);
== sizeof(struct flow_tnl) + 172
&& FLOW_WC_SEQ == 25);
/* Incremental points at which flow classification may be performed in
* segments.
@@ -165,6 +170,8 @@ extern const uint8_t flow_segment_u32s[];
/* Represents the metadata fields of struct flow. */
struct flow_metadata {
uint32_t dp_hash; /* Datapath computed hash field. */
uint32_t recirc_id; /* Recirculation ID. */
ovs_be64 tun_id; /* Encapsulating tunnel ID. */
ovs_be32 tun_src; /* Tunnel outer IPv4 src addr */
ovs_be32 tun_dst; /* Tunnel outer IPv4 dst addr */