Gleb Chesnokov 7eddc7eed5 qla2x00t-32gbit: Fix erroneous mailbox timeout after PCI error injection
Clear wait for mailbox interrupt flag to prevent stale mailbox:

Feb 22 05:22:56 ltcden4-lp7 kernel: qla2xxx [0135:90:00.1]-500a:4: LOOP UP detected (16 Gbps).
Feb 22 05:22:59 ltcden4-lp7 kernel: qla2xxx [0135:90:00.1]-d04c:4: MBX Command timeout for cmd 69, ...

To fix the issue, driver needs to clear the MBX_INTR_WAIT flag on purging
the mailbox. When the stale mailbox completion does arrive, it will be
dropped.

Link: https://lore.kernel.org/r/20220616053508.27186-11-njavali@marvell.com
Fixes: b6faaaf796d7 ("scsi: qla2xxx: Serialize mailbox request")
Cc: Naresh Bannoth <nbannoth@in.ibm.com>
Cc: Kyle Mahlkuch <Kyle.Mahlkuch@ibm.com>
Cc: stable@vger.kernel.org
Reported-by: Naresh Bannoth <nbannoth@in.ibm.com>
Tested-by: Naresh Bannoth <nbannoth@in.ibm.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
[ commit f260694e6463 upstream ]
2022-09-13 11:29:40 +03:00
2021-08-17 09:40:21 -04:00
2022-01-11 16:37:34 +03:00
2022-07-07 13:52:01 +03:00
2022-01-11 16:37:34 +03:00
2022-05-18 11:14:17 +03:00
2021-03-15 04:06:56 +00:00

Coverity

Overview

This is the source code repository of the SCST project. SCST is a collection of Linux kernel drivers that implement SCSI target functionality. The SCST project includes:

  1. The SCST core in the scst/ subdirectory.
  2. A tool for loading, saving and modifying the SCST configuration in directory scstadmin/.
  3. Several SCSI target drivers in the directories iscsi-scst/, qla2x00t/, srpt/, scst_local/ and fcst/.
  4. User space programs in the usr/ subdirectory, e.g. fileio_tgt.
  5. Various documentation in the doc/ subdirectory.

Instructions for building and installing SCST are available in the INSTALL.md file.

QLogic target driver

Two QLogic target drivers are included in the SCST project.

The default driver is located in qla2x00t-32gbit directory and it supports up to 32 Gb/s FC. It is the newer one.

May anyone wish to switch back to the older driver that only supported up to 16 Gb/s adapters, it is located in qla2x00t directory. To make use of the older driver build scst with environment variable QLA_32GBIT=no set.

Vladislav Bolkhovitin vst@vlnb.net, http://scst.sourceforge.net

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