diff options
| author |   Krishna Gudipati <kgudipat@brocade.com> | 2011-12-20 18:58:32 -0800 |
|---|---|---|
| committer |   James Bottomley <JBottomley@Parallels.com> | 2012-01-10 17:01:24 -0600 |
| commit | 5b7db7af522d9f281ff8bf540d2b5cbea2206b27 (patch) | |
| tree | 7e2b2750a13a5ee9794d1893a0b575419cde95cf /lib/parser.c | |
| parent | [SCSI] bfa: Revert back the current LUN Masking Implementation. (diff) | |
| download | wireguard-linux-5b7db7af522d9f281ff8bf540d2b5cbea2206b27.tar.xz wireguard-linux-5b7db7af522d9f281ff8bf540d2b5cbea2206b27.zip | |
[SCSI] bfa: Implement LUN Masking feature using the SCSI Slave Callouts.
This patch re-implements LUN Masking feature using SCSI Slave Callouts. With
the new design in the slave_alloc entry point; for each new LUN discovered we
check with our internal LUN Masking config whether to expose or to mask this
particular LUN. We return -ENXIO (No such device or address) from slave_alloc
for the LUNs we don't want to be exposed. We also notify the SCSI mid-layer
to do a sequential LUN scan rather than REPORT_LUNS based scan if LUN masking
is enabled on our HBA port, since a -ENXIO from any LUN in REPORT_LUNS based
scan translates to a scan abort. This patch also handles the dynamic lun
masking config change from enable to disable or vice-versa by resetting
sdev_bflags of LUN 0 appropriately.
Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'lib/parser.c')
0 files changed, 0 insertions, 0 deletions