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From: Sreekanth Reddy <sreekanth.reddy@avagotech.com>
To: jejb@kernel.org, hch@infradead.org
Cc: martin.petersen@oracle.com, linux-scsi@vger.kernel.org,
	JBottomley@Parallels.com, Sathya.Prakash@avagotech.com,
	linux-kernel@vger.kernel.org,
	Sreekanth Reddy <Sreekanth.Reddy@avagotech.com>
Subject: [PATCH 14/20] [SCSI] mpt3sas: Complete the SCSI command with  DID_RESET status for log_info value 0x0x32010081
Date: Fri, 12 Jun 2015 15:12:26 +0530	[thread overview]
Message-ID: <1434102153-38581-15-git-send-email-Sreekanth.Reddy@avagotech.com> (raw)
In-Reply-To: <1434102153-38581-1-git-send-email-Sreekanth.Reddy@avagotech.com>

For any SCSI command, if the driver receives
IOC status = SCSI_IOC_TERMINATED and log info = 0x32010081 then
that command will be completed with DID_RESET host status.

The definition of this log info value is
"Virtual IO has failed and has to be retried".

Firmware will provide this log info value with IOC Status
"SCSI_IOC_TERMINATED", whenever a drive (with is a part of a volume)
is pulled and pushed back within some minimal delay.
With this log info value, firmware informs the driver to retry the
failed IO command infinite times, so to provide some time for the
firmware to discover the reinserted drive successfully instated of
just retrying failed command for five times(doesn't giving enough
time for firmware to complete the drive discovery) and failing the
IO permanently even though drive came back successfully.

Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@avagotech.com>
---
 drivers/scsi/mpt3sas/mpt3sas_scsih.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
index 64dd90b..837c22a 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
@@ -4241,6 +4241,9 @@ _scsih_io_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
 				scmd->device->expecting_cc_ua = 1;
 			}
 			break;
+		} else if (log_info == 0x32010081) {
+			scmd->result = DID_RESET << 16;
+			break;
 		}
 		scmd->result = DID_SOFT_ERROR << 16;
 		break;
-- 
2.0.2


  parent reply	other threads:[~2015-06-12  9:44 UTC|newest]

Thread overview: 82+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-06-12  9:42 [PATCH 00/20] mpt3sas: driver update Sreekanth Reddy
2015-06-12  9:42 ` [PATCH 01/20] [SCSI] mpt3sas: Added Combined Reply Queue feature to extend up-to 96 MSIX vector support Sreekanth Reddy
2015-06-12 11:09   ` Johannes Thumshirn
2015-06-12 11:16     ` Sreekanth Reddy
2015-06-18  9:57       ` Sreekanth Reddy
2015-06-19  9:14         ` Johannes Thumshirn
2015-06-19  9:21           ` Sreekanth Reddy
2015-06-19  9:55             ` Johannes Thumshirn
2015-06-12  9:42 ` [PATCH 02/20] [SCSI] mpt3sas: Get IOC_FACTS information using handshake protocol only after HBA card gets into READY or Operational state Sreekanth Reddy
2015-06-16 15:59   ` Tomas Henzl
2015-06-17  9:08     ` Sreekanth Reddy
2015-06-12  9:42 ` [PATCH 03/20] [SCSI] mpt3sas: Don't block the drive when drive addition under the control of SML Sreekanth Reddy
2015-06-19 15:05   ` Martin K. Petersen
2015-06-12  9:42 ` [PATCH 04/20] [SCSI] mpt3sas: Remove redundancy code while freeing the controller resources Sreekanth Reddy
2015-06-12 11:28   ` Johannes Thumshirn
2015-06-12 12:18     ` Sreekanth Reddy
2015-06-12 12:40       ` Johannes Thumshirn
2015-06-15 10:26         ` Sreekanth Reddy
2015-06-15 10:48           ` Johannes Thumshirn
2015-06-18  9:52             ` Sreekanth Reddy
2015-06-18 10:08   ` Johannes Thumshirn
2015-06-19 15:09   ` Martin K. Petersen
2015-06-12  9:42 ` [PATCH 05/20] [SCSI] mpt3sas: MPI 2.5 Rev I (2.5.4) specifications Sreekanth Reddy
2015-06-15  9:51   ` Johannes Thumshirn
2015-06-19 15:10   ` Martin K. Petersen
2015-06-12  9:42 ` [PATCH 06/20] [SCSI] mpt3sas: Provides the physical location of sas drives Sreekanth Reddy
2015-06-18  9:56   ` Sreekanth Reddy
2015-06-19  9:19   ` Johannes Thumshirn
2015-06-19 10:53     ` Sreekanth Reddy
2015-06-12  9:42 ` [PATCH 07/20] [SCSI] mpt3sas: Bump mpt3sas Driver version to v5.100.00.00 Sreekanth Reddy
2015-06-15  9:52   ` Johannes Thumshirn
2015-06-19 20:22   ` Martin K. Petersen
2015-06-12  9:42 ` [PATCH 08/20] [SCSI] mpt3sas: Update MPI2 strings to MPI2.5 Sreekanth Reddy
2015-06-15  9:52   ` Johannes Thumshirn
2015-06-19 20:24   ` Martin K. Petersen
2015-06-12  9:42 ` [PATCH 09/20] [SCSI] mpt3sas: MPI 2.5 Rev J (2.5.5) specification and 2.00.34 header files Sreekanth Reddy
2015-06-15  9:53   ` Johannes Thumshirn
2015-06-19 20:27   ` Martin K. Petersen
2015-06-22 12:18     ` Sreekanth Reddy
2015-06-12  9:42 ` [PATCH 10/20] [SCSI] mpt3sas: Add branding string support for OEM's HBA Sreekanth Reddy
2015-06-15  9:46   ` Johannes Thumshirn
2015-06-15 11:11     ` Sreekanth Reddy
2015-06-15 11:53       ` Johannes Thumshirn
2015-06-15 12:00         ` Sreekanth Reddy
2015-06-18  9:51           ` Sreekanth Reddy
2015-06-18 10:09   ` Johannes Thumshirn
2015-06-19 20:30   ` Martin K. Petersen
2015-06-12  9:42 ` [PATCH 11/20] [SCSI] mpt3sas: Add branding string support for OEM custom HBA Sreekanth Reddy
2015-06-18  9:55   ` Sreekanth Reddy
2015-06-19 20:34   ` Martin K. Petersen
2015-06-12  9:42 ` [PATCH 12/20] [SCSI] mpt3sas: Bump mpt3sas driver version to v6.100.00.00 Sreekanth Reddy
2015-06-15  9:53   ` Johannes Thumshirn
2015-06-19 20:35   ` Martin K. Petersen
2015-06-12  9:42 ` [PATCH 13/20] [SCSI] mpt3sas: MPI 2.5 Rev K (2.5.6) specifications Sreekanth Reddy
2015-06-15  9:54   ` Johannes Thumshirn
2015-06-19 20:36   ` Martin K. Petersen
2015-06-12  9:42 ` Sreekanth Reddy [this message]
2015-06-15 10:01   ` [PATCH 14/20] [SCSI] mpt3sas: Complete the SCSI command with DID_RESET status for log_info value 0x0x32010081 Johannes Thumshirn
2015-06-15 11:01     ` Sreekanth Reddy
2015-06-12  9:42 ` [PATCH 15/20] [SCSI] mpt3sas: Return host busy error status to SML when DMA mapping of scatter gather list fails for a SCSI command Sreekanth Reddy
2015-06-15  9:54   ` Johannes Thumshirn
2015-06-19 20:40   ` Martin K. Petersen
2015-06-12  9:42 ` [PATCH 16/20] [SCSI] mpt3sas: Added support for customer specific branding Sreekanth Reddy
2015-06-18  9:53   ` Sreekanth Reddy
2015-06-19 20:44   ` Martin K. Petersen
2015-06-22 12:26     ` Sreekanth Reddy
2015-06-22 20:36       ` Martin K. Petersen
2015-06-25 13:40         ` Sreekanth Reddy
2015-06-12  9:42 ` [PATCH 17/20] [SCSI] mpt3sas: Use alloc_ordered_workqueue() API instead of create_singlethread_workqueue() API Sreekanth Reddy
2015-06-12 21:03   ` Joe Lawrence
2015-06-15 10:56     ` Sreekanth Reddy
2015-06-15 21:05       ` James Bottomley
2015-06-16  5:03         ` Sreekanth Reddy
2015-06-12  9:42 ` [PATCH 18/20] [SCSI] mpt3sas: Call dma_mapping_error() API after mapping an address with dma_map_single() API Sreekanth Reddy
2015-06-15  9:55   ` Johannes Thumshirn
2015-06-19 20:47   ` Martin K. Petersen
2015-06-12  9:42 ` [PATCH 19/20] [SCSI] mpt3sas: When device is blocked followed by unblock fails, unfreeze the I/Os Sreekanth Reddy
2015-06-15  9:58   ` Johannes Thumshirn
2015-06-12  9:42 ` [PATCH 20/20] [SCSI] mpt3sas : Bump mpt3sas driver version to 9.100.00.00 Sreekanth Reddy
2015-06-15  9:56   ` Johannes Thumshirn
2015-06-19 21:01   ` Martin K. Petersen
  -- strict thread matches above, loose matches on Subject: below --
2015-03-30 13:55 [PATCH 00/20] mpt3sas: driver update Sreekanth Reddy
2015-03-30 13:55 ` [PATCH 14/20] [SCSI] mpt3sas: Complete the SCSI command with DID_RESET status for log_info value 0x0x32010081 Sreekanth Reddy

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