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i40evf: quoth the VF driver, Nevermore

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If, upon a midnight dreary, the PF returns ERR_PARAM when the VF is
requesting resources, that's fatal. Either the firmware or NVM is badly,
badly misconfigured, or this VF has been disabled due to a previous VF
driver sending a bunch of bogus messages.

Either way, there is no recovery from this. Don't ponder weak and weary,
just quit.

Change-ID: I09d9f16cc4ee7fec3b57646a289d33838c1c5bf5
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 2015-10-26 19:44:38 -04:00 committed by Jeff Kirsher
parent e7ffb72d65
commit e743072fd1
1 changed files with 8 additions and 0 deletions
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8
drivers/net/ethernet/intel/i40evf/i40evf_main.c
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@ -2435,6 +2435,14 @@ static void i40evf_init_task(struct work_struct *work)
if (err == I40E_ERR_ADMIN_QUEUE_NO_WORK) {
err = i40evf_send_vf_config_msg(adapter);
goto err;
} else if (err == I40E_ERR_PARAM) {
/* We only get ERR_PARAM if the device is in a very bad
* state or if we've been disabled for previous bad
* behavior. Either way, we're done now.
*/
i40evf_shutdown_adminq(hw);
dev_err(&pdev->dev, "Unable to get VF config due to PF error condition, not retrying\n");
return;
}
if (err) {
dev_err(&pdev->dev, "Unable to get VF config (%d)\n",