3PAR driver hangs on ssh calls with hp3parclient version 3.1.1

[Kurt Martin]

In Kilo, we have removed the local file locks in the drivers recently, and part of that fix included making new SSH connection for each call in the hp3parclient as opposes to leaving a connection open. Older hp3parclients 3.1.1 and later will result in the SSH calls hanging at driver initialization with the following message.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/141937

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/141937
Committed: https://git.openstack.org/cgit/openstack/cinder/commit/?id=3f9770d2c0fd76070214ca85e0dd81b9f1924011
Submitter: Jenkins
Branch: master

commit 3f9770d2c0fd76070214ca85e0dd81b9f1924011
Author: Kurt Martin <email address hidden>
Date: Mon Dec 15 15:14:42 2014 -0800

    Fix 3PAR driver hang on SSH calls

    In removing the 3PAR driver local file locks, part of the fix included
    making a new SSH connection for each call in the hp3parclient as
    oppose to leaving a connection open. Older hp3parclients(3.1.1 and
    later) will result in the SSH calls hanging at driver initilization time.

    This patch will now check against the correct minimum hp3parclient version
    and remove the need for checking of the SSH args version since the minimum
    hp3parclient is now greater than 3.1.1
    Closes-Bug: #1402115

    Change-Id: Ic162a1a469e85fa36501d4de245fe16738d3aefa