[ovs-build] Passed: ovsrobot/ovs#626 (series_96501 - 536c68e)

[Travis CI]

Build Update for ovsrobot/ovs
-------------------------------------

Build: #626
Status: Passed

Duration: 1 hr, 11 mins, and 13 secs
Commit: 536c68e (series_96501)
Author: Numan Siddique
Message: ovn-controller: Add a new thread in pinctrl module to handle packet-ins.

Prior to this patch, ovn-controller was single threaded and everytime the
poll_block() at the end of the main while() loop wakes up, it  processes
the whole SB DB and translates the logical flows to OF flows.

There are few issues with this -

  * For every packet-in received, ovn-controller does this translation
    resulting in unnecessary CPU cycles.

  * If the translation takes a lot of time, then the packet-in handling
    would get delayed. The delay in responses to DHCP requests could
    result in resending of these requests.

This patch addresses these issues by creating a new pthread in pinctrl module
to handle packet-ins. This thread doesn't access the Southbound DB IDL object.

Since some of the OVN actions - like dns_lookup, arp, put_arp, put_nd
require access to the Southbound DB contents and gARPs, periodic IPv6 RA
generation also requires the DB access, pinctrl_run() called by the main
ovn-controller thread accesses the Southbound DB IDL and builds the local
datastructures. pinctrl_handler thread accesses these data structures
in handling such requests. An ovs_mutex is used between the pinctr_run() and
the pinctrl_handler thread to protect these data structures.

Signed-off-by: Numan Siddique <nusiddiq at redhat.com>
Signed-off-by: 0-day Robot <robot at bytheb.org>

View the changeset: https://github.com/ovsrobot/ovs/commit/536c68e483a4

View the full build log and details: https://travis-ci.org/ovsrobot/ovs/builds/504796174?utm_medium=notification&utm_source=email

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