From a2d0321dd532901ea64118ed5a752fa6e447d1da Mon Sep 17 00:00:00 2001 From: Raghava Aditya Renukunta Date: Thu, 16 Feb 2017 12:51:18 -0800 Subject: [PATCH] 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 --- drivers/scsi/aacraid/commsup.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/drivers/scsi/aacraid/commsup.c b/drivers/scsi/aacraid/commsup.c index eb4d8cfc3194..1f716c01708b 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); } -- 2.20.1