Commit a2d0321d authored Feb 16, 2017 by Raghava Aditya Renukunta Committed by Martin K. Petersen Feb 22, 2017

scsi: aacraid: Reload offlined drives after controller reset



During the IOP reset stress testing, it was found that the drives can be
marked offline when the adapter controller crashes and IO's are running
in parallel. When the controller  does come back from the reset, the drive
that is marked offline is not exposed.

Fixed by removing and adding drives that are marked offline. In addition
invoke a scsi host bus rescan to capture any additional configuration
changes.

Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: David Carroll <David.Carroll@microsemi.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

parent 849ac6a5

drivers/scsi/aacraid/commsup.c

+18 −0

Original line number	Diff line number	Diff line
		@@ -1637,11 +1637,29 @@ static int _aac_reset_adapter(struct aac_dev *aac, int forced, u8 reset_type)
		command->SCp.phase = AAC_OWNER_ERROR_HANDLER;
		command->scsi_done(command);
		}
		/*
		* Any Device that was already marked offline needs to be cleaned up
		*/
		__shost_for_each_device(dev, host) {
		if (!scsi_device_online(dev)) {
		sdev_printk(KERN_INFO, dev, "Removing offline device\n");
		scsi_remove_device(dev);
		scsi_device_put(dev);
		}
		}
		retval = 0;

		out:
		aac->in_reset = 0;
		scsi_unblock_requests(host);
		/*
		* Issue bus rescan to catch any configuration that might have
		* occurred
		*/
		if (!retval) {
		dev_info(&aac->pdev->dev, "Issuing bus rescan\n");
		scsi_scan_host(host);
		}
		if (jafo) {
		spin_lock_irq(host->host_lock);
		}