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| author | Saloni Jain <saloni.jain@tcs.com> | 2015-11-24 17:49:42 +0530 |
|---|---|---|
| committer | Ben Pfaff <blp@ovn.org> | 2015-11-29 18:00:03 -0800 |
| commit | de7d3c0761a34232613ac60792c0f6cf75fdca8e (patch) | |
| tree | e70474c83d10451b40f97d6e1d452d7c136b241d /lib/ofp-print.c | |
| parent | 331e7aefe1c627d60fe60ce9b11fd3f308945603 (diff) | |
| download | openvswitch-de7d3c0761a34232613ac60792c0f6cf75fdca8e.tar.gz | |
Implement Openflow 1.4 Vacancy Events for OFPT_TABLE_MOD.
OpenFlow 1.4 introduces the ability to turn on vacancy events with an
OFPT_TABLE_MOD message specifying OFPTC_VACANCY_EVENTS. This commit adds
support for the new feature in ovs-ofctl mod-table.
As per the openflow specification-1.4, vacancy event adds a mechanism
enabling the controller to get an early warning based on capacity
threshold chosen by the controller.
With this commit, vacancy events can be configured as:
ovs-ofctl -O OpenFlow14 mod-table <bridge> <table> vacancy:<low,high>
<low,high> specify vacancy threshold values in percentage for vacancy_down
and vacancy_up respectively.
To disable vacancy events, following command should be given:
ovs-ofctl -O OpenFlow14 mod-table <bridge> <table> novacancy
Signed-off-by: Saloni Jain <saloni.jain@tcs.com>
Co-authored-by: Shashwat Srivastava <shashwat.srivastava@tcs.com>
Signed-off-by: Shashwat Srivastava <shashwat.srivastava@tcs.com>
Co-authored-by: Sandeep Kumar <sandeep.kumar16@tcs.com>
Signed-off-by: Sandeep Kumar <sandeep.kumar16@tcs.com>
[blp@ovn.org fixed a few typos]
Signed-off-by: Ben Pfaff <blp@ovn.org>
Diffstat (limited to 'lib/ofp-print.c')
| -rw-r--r-- | lib/ofp-print.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/lib/ofp-print.c b/lib/ofp-print.c index 9451e7a46..1f22dd753 100644 --- a/lib/ofp-print.c +++ b/lib/ofp-print.c @@ -990,6 +990,18 @@ ofputil_put_eviction_flags(struct ds *string, uint32_t eviction_flags) } } +static const char * +ofputil_table_vacancy_to_string(enum ofputil_table_vacancy vacancy) +{ + switch (vacancy) { + case OFPUTIL_TABLE_VACANCY_DEFAULT: return "default"; + case OFPUTIL_TABLE_VACANCY_ON: return "on"; + case OFPUTIL_TABLE_VACANCY_OFF: return "off"; + default: return "***error***"; + } + +} + static void ofp_print_table_mod(struct ds *string, const struct ofp_header *oh) { @@ -1020,6 +1032,15 @@ ofp_print_table_mod(struct ds *string, const struct ofp_header *oh) ds_put_cstr(string, "eviction_flags="); ofputil_put_eviction_flags(string, pm.eviction_flags); } + if (pm.vacancy != OFPUTIL_TABLE_VACANCY_DEFAULT) { + ds_put_format(string, ", vacancy=%s", + ofputil_table_vacancy_to_string(pm.vacancy)); + if (pm.vacancy == OFPUTIL_TABLE_VACANCY_ON) { + ds_put_format(string, " vacancy:%"PRIu8"" + ",%"PRIu8"", pm.table_vacancy.vacancy_down, + pm.table_vacancy.vacancy_up); + } + } } /* This function will print the Table description properties. */ |