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author | Chad Dupuis | 2017-05-31 15:33:56 +0200 |
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committer | Martin K. Petersen | 2017-06-13 02:48:06 +0200 |
commit | b09fdc3aac6acc20587713e306692b12d31a2008 (patch) | |
tree | bf7d15c5cf973a891aaed8d519ffb5d4fce81b7a /drivers/scsi/qedf/qedf_els.c | |
parent | scsi: qedf: Use same logic for SCSI host reset and FC lip_reset. (diff) | |
download | kernel-qcow2-linux-b09fdc3aac6acc20587713e306692b12d31a2008.tar.gz kernel-qcow2-linux-b09fdc3aac6acc20587713e306692b12d31a2008.tar.xz kernel-qcow2-linux-b09fdc3aac6acc20587713e306692b12d31a2008.zip |
scsi: qedf: Add bus_reset No-op.
We need to add a bus reset no-op as without it some of the LUNs attached to a
vport may go offline when the error handler escalates to host reset due to not
having a bus reset handler in the driver. What happens is we escalate to host
reset which does a soft link down/link up to reset the adapter. However with
multiple vports attached it's been observed that if the vports do log back into
the target within 5 seconds, the SCSI layer offlines the devices most likely
due to a TUR timing out to verify that the device is online. Adding a bus
reset handler will cause the TUR to be sent after the bus reset handler where
the devices will still be online if the bus reset is initiated by sg_reset
(which is the case in the test that was failing). The bus reset will succeed
and not needlessly bring the device offline/online.
Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/qedf/qedf_els.c')
0 files changed, 0 insertions, 0 deletions