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Implement OpenFlow 1.4+ OFPTC_EVICTION.

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OpenFlow 1.4 introduces the ability to turn on flow table eviction with an
OFPT_TABLE_MOD message specifying OFPTC_EVICTION.  It also adds related
machinery to other messages that mention OFPTC_* fields.  This commit adds
support for the new feature, implementing it as a second, parallel way to
enable flow table eviction.  It takes more work than it seems like it
should because there is so much weirdness with the treatment of OFPTC_*
flags over the evolution of OpenFlow; please refer to the explanation in
DESIGN.md for more information.

This commit also adds related support to ovs-ofctl, plus tests.

Signed-off-by: Ben Pfaff <blp@nicira.com>
Co-authored-by: Saloni Jain <saloni.jain@tcs.com>
Signed-off-by: Saloni Jain <saloni.jain@tcs.com>
Acked-by: Jarno Rajahalme <jrajahalme@nicira.com>
This commit is contained in:
Ben Pfaff
2015-07-02 20:33:08 -07:00
parent f70b94debc
commit 82c22d34b5
17 changed files with 723 additions and 329 deletions
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2
lib/ofp-parse.h
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@@ -49,7 +49,7 @@ char *parse_ofp_flow_mod_str(struct ofputil_flow_mod *, const char *string,
char *parse_ofp_table_mod(struct ofputil_table_mod *,
const char *table_id, const char *flow_miss_handling,
enum ofputil_protocol *usable_protocols)
uint32_t *usable_versions)
OVS_WARN_UNUSED_RESULT;
char *parse_ofp_flow_mod_file(const char *file_name, int command,