From: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx>
Greetings SCSI folks
This patch series adds proper support for >= SPC-3 defined compatible reservation handling (CRH=1)
within lio-core-2.6.git/drivers/target/target_core_pr.c. It also adds the necessary checks to handle
when >= SPC-3 PR and legacy SPC-2 reservation logic is intermixed and RESERVATION_CONFLICT status
should be returned.
The patch logic is following spc4r17 for CRH=1 and spc2r20 for PR <-> Legacy Reservation interaction,
but it would be great if any other SCSI folks would have a look and verify.
Also, in order to test the >= SPC-3 PR + legacy SPC-2 intermixed RESERVATION_CONFLICT cases, I ended up
adding simple legacy RESERVE/RELEASE support to sg_persist.
Doug, would you be willing to accept a patch so that sg3_utils can have this test case..?
Best,
--nab
Nicholas Bellinger (3):
[TCM/PR]: Add support for compatible reservation handling (CRH=1)
[TCM]: Make legacy RESERVE_* and RELEASE_* use
se_cmd_t->transport_emulate_cdb()
[TCM]: Release legacy SPC-2 reservation during TMR LUN_RESET
drivers/target/target_core_pr.c | 176 +++++++++++++++++++++++--------
drivers/target/target_core_tmr.c | 12 ++
drivers/target/target_core_transport.c | 25 +++--
include/target/target_core_base.h | 2 -
include/target/target_core_pr.h | 1 +
5 files changed, 158 insertions(+), 58 deletions(-)
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