From: Raghava Aditya Renukunta Date: Thu, 16 Feb 2017 20:51:18 +0000 (-0800) Subject: scsi: aacraid: Reload offlined drives after controller reset X-Git-Tag: v4.14-rc1~1346^2~50 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=a2d0321dd532901ea64118ed5a752fa6e447d1da;p=platform%2Fkernel%2Flinux-rpi3.git 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 Reviewed-by: David Carroll Reviewed-by: Johannes Thumshirn Signed-off-by: Martin K. Petersen --- diff --git a/drivers/scsi/aacraid/commsup.c b/drivers/scsi/aacraid/commsup.c index eb4d8cf..1f716c0 100644 --- a/drivers/scsi/aacraid/commsup.c +++ b/drivers/scsi/aacraid/commsup.c @@ -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); }