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i40evf: don't give up 

When the VF driver is unable to communicate with the PF, it just gives
up and never tries again. Aside from the obvious character flaw that
this shows, it's also a lousy user experience.

When PF communications fail, wait five seconds, and try again. And
again. Don't give up, little VF driver! Your prince will come!

Change-ID: Ia1378a39879883563b8faffce819f375821f9585
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Mitch Williams 2015-09-28 14:16:50 -04:00 committed by Jeff Kirsher
parent 5d3465a1e4
commit b9029e941d
1 changed files with 5 additions and 2 deletions
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7
drivers/net/ethernet/intel/i40evf/i40evf_main.c
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@ -2357,9 +2357,12 @@ err_alloc:
err:
/* Things went into the weeds, so try again later */
if (++adapter->aq_wait_count > I40EVF_AQ_MAX_ERR) {
dev_err(&pdev->dev, "Failed to communicate with PF; giving up\n");
dev_err(&pdev->dev, "Failed to communicate with PF; waiting before retry\n");
adapter->flags |= I40EVF_FLAG_PF_COMMS_FAILED;
return; /* do not reschedule */
i40evf_shutdown_adminq(hw);
adapter->state = __I40EVF_STARTUP;
schedule_delayed_work(&adapter->init_task, HZ * 5);
return;
}
schedule_delayed_work(&adapter->init_task, HZ);
}