mir/openvswitch
2
0
Fork 0
mirror of https://github.com/openvswitch/ovs synced 2025-10-29 15:28:56 +00:00
Code Issues Releases Wiki Activity

packets: Reduce redundant copies of connection states.

Browse Source 
I was about to add another complete list of all the connection states but
this eliminates the need.

Signed-off-by: Ben Pfaff <blp@ovn.org>
Acked-by: Miguel Angel Ajo <majopela@redhat.com>
This commit is contained in:
Ben Pfaff
2017-04-17 13:43:48 -07:00
parent a96d26d78e
commit fd6cd1bf9e
4 changed files with 51 additions and 108 deletions
Download Patch File Download Diff File Expand all files Collapse all files

45
lib/packets.h
View File

@@ -794,33 +794,34 @@ struct tcp_header {
};
BUILD_ASSERT_DECL(TCP_HEADER_LEN == sizeof(struct tcp_header));
/* Connection states */
enum {
CS_NEW_BIT = 0,
CS_ESTABLISHED_BIT = 1,
CS_RELATED_BIT = 2,
CS_REPLY_DIR_BIT = 3,
CS_INVALID_BIT = 4,
CS_TRACKED_BIT = 5,
CS_SRC_NAT_BIT = 6,
CS_DST_NAT_BIT = 7,
};
/* Connection states.
*
* Names like CS_RELATED are bit values, e.g. 1 << 2.
* Names like CS_RELATED_BIT are bit indexes, e.g. 2. */
#define CS_STATES \
CS_STATE(NEW, 0, "new") \
CS_STATE(ESTABLISHED, 1, "est") \
CS_STATE(RELATED, 2, "rel") \
CS_STATE(REPLY_DIR, 3, "rpl") \
CS_STATE(INVALID, 4, "inv") \
CS_STATE(TRACKED, 5, "trk") \
CS_STATE(SRC_NAT, 6, "snat") \
CS_STATE(DST_NAT, 7, "dnat")
enum {
CS_NEW = (1 << CS_NEW_BIT),
CS_ESTABLISHED = (1 << CS_ESTABLISHED_BIT),
CS_RELATED = (1 << CS_RELATED_BIT),
CS_REPLY_DIR = (1 << CS_REPLY_DIR_BIT),
CS_INVALID = (1 << CS_INVALID_BIT),
CS_TRACKED = (1 << CS_TRACKED_BIT),
CS_SRC_NAT = (1 << CS_SRC_NAT_BIT),
CS_DST_NAT = (1 << CS_DST_NAT_BIT),
#define CS_STATE(ENUM, INDEX, NAME) \
CS_##ENUM = 1 << INDEX, \
CS_##ENUM##_BIT = INDEX,
CS_STATES
#undef CS_STATE
};
/* Undefined connection state bits. */
#define CS_SUPPORTED_MASK (CS_NEW | CS_ESTABLISHED | CS_RELATED \
| CS_INVALID | CS_REPLY_DIR | CS_TRACKED \
| CS_SRC_NAT | CS_DST_NAT)
enum {
#define CS_STATE(ENUM, INDEX, NAME) +CS_##ENUM
CS_SUPPORTED_MASK = CS_STATES
#undef CS_STATE
};
#define CS_UNSUPPORTED_MASK (~(uint32_t)CS_SUPPORTED_MASK)
#define ARP_HRD_ETHERNET 1