mirror of
https://github.com/torvalds/linux.git
synced 2024-11-21 19:41:42 +00:00
53062ace0b
For the cases where you want to export a device to a VM via a single I_T nexus and want to passthrough the PR handling to the physical/real device you have to use pscsi or tcmu. Both are good for specific uses however for the case where you want good performance, and are not using SCSI devices directly (using DM/MD RAID or multipath devices) then we are out of luck. The following patches allow iblock to mimimally hook into the LIO PR code and then pass the PR handling to the physical device. Note that like with the tcmu an pscsi cases it's only supported when you export the device via one I_T nexus. This patch adds the initial LIO callouts. The next patch will modify iblock. Signed-off-by: Mike Christie <michael.christie@oracle.com> Link: https://lore.kernel.org/r/20230407200551.12660-16-michael.christie@oracle.com Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> |
||
|---|---|---|
| .. | ||
| iscsi | ||
| target_core_backend.h | ||
| target_core_base.h | ||
| target_core_fabric.h | ||