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Aborting commands that have already been sent to the firmware can cause BUG in qlt_free_cmd(): BUG_ON(cmd->sg_mapped) For instance: - Command passes rdx_to_xfer state, maps sgl, sends to the firmware - Reset occurs, qla2xxx performs ISP error recovery, aborts the command - Target stack calls qlt_abort_cmd() and then qlt_free_cmd() - BUG_ON(cmd->sg_mapped) in qlt_free_cmd() occurs because sgl was not unmapped Thus, unmap sgl in qlt_abort_cmd() for commands with the aborted flag set. Link: https://lore.kernel.org/r/AS8PR10MB4952D545F84B6B1DFD39EC1E9DEE9@AS8PR10MB4952.EURPRD10.PROD.OUTLOOK.COM Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Gleb Chesnokov <Chesnokov.G@raidix.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> [ commit 26f9ce53817a upstream ]
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:
- The SCST core in the scst/ subdirectory.
- A tool for loading, saving and modifying the SCST configuration in directory scstadmin/.
- Several SCSI target drivers in the directories iscsi-scst/, qla2x00t/, srpt/, scst_local/ and fcst/.
- User space programs in the usr/ subdirectory, e.g. fileio_tgt.
- 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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