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i40evf: don't give up

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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);
}