K 10
svn:author
V 8
arybchik
K 8
svn:date
V 27
2015-12-01T15:54:46.760641Z
K 7
svn:log
V 586
sfxge: retry VF vAdaptor allocation if it fails because of no EVB port yet

After an MC reboot, a VF driver may reset before the PF driver has
finished bringing everything back up. This includes the VFs EVB port.
MC_CMD_VADAPTOR_ALLOC is the first MCDI call after an MC reboot to
require the EVB port, so if it fails with MC_CMD_ERR_NO_EVB_PORT,
retry the command a few times after waiting a while.

Submitted by:   Mark Spender <mspender at solarflare.com>
Sponsored by:   Solarflare Communications, Inc.
MFC after:      2 days
Differential Revision: https://reviews.freebsd.org/D4333

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