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dpif-netdev: reduce netdev_flow_key size

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Signed-off-by: Daniele Di Proietto <ddiproietto@vmware.com>
Signed-off-by: Jarno Rajahalme <jrajahalme@nicira.com>
Acked-by: Jarno Rajahalme <jrajahalme@nicira.com>
This commit is contained in:
Daniele Di Proietto
2014-09-20 07:30:02 +00:00
committed by Jarno Rajahalme
parent 25f451432e
commit 154374a72b
2 changed files with 14 additions and 8 deletions
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13
lib/flow.h
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@@ -138,6 +138,19 @@ BUILD_ASSERT_DECL(sizeof(struct flow) % 4 == 0);
#define FLOW_U32S (sizeof(struct flow) / 4)
/* Some flow fields are mutually exclusive or only appear within the flow
* pipeline. IPv6 headers are bigger than IPv4 and MPLS, and IPv6 ND packets
* are bigger than TCP,UDP and IGMP packets. */
#define FLOW_MAX_PACKET_U32S (FLOW_U32S \
/* Unused in datapath */ - FLOW_U32_SIZE(regs) \
- FLOW_U32_SIZE(metadata) \
/* L2.5/3 */ - FLOW_U32_SIZE(nw_src) \
- FLOW_U32_SIZE(nw_dst) \
- FLOW_U32_SIZE(mpls_lse) \
/* L4 */ - FLOW_U32_SIZE(tcp_flags) /* incl. pad. */ \
- FLOW_U32_SIZE(igmp_group_ip4) \
)
/* Remember to update FLOW_WC_SEQ when changing 'struct flow'. */
BUILD_ASSERT_DECL(offsetof(struct flow, dp_hash) + sizeof(uint32_t)
== sizeof(struct flow_tnl) + 176