diff options
| author |   Nicholas Bellinger <nab@linux-iscsi.org> | 2012-05-16 21:52:10 -0700 |
|---|---|---|
| committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2012-05-17 00:45:58 -0700 |
| commit | ba539743b70cd160c84bab1c82910d0789b820f8 (patch) | |
| tree | dfcd54b96116920512e58301e682ffeec7c8f1ff | |
| parent | target: add support for the WRITE_VERIFY command (diff) | |
| download | linux-dev-ba539743b70cd160c84bab1c82910d0789b820f8.tar.xz linux-dev-ba539743b70cd160c84bab1c82910d0789b820f8.zip | |
target: Fix MAINTENANCE_IN service action CDB checks to use lower 5 bits
This patch fixes the MAINTENANCE_IN service action type checks to only
look at the proper lower 5 bits of cdb byte 1. This addresses the case
where MI_REPORT_TARGET_PGS w/ extended header using the upper three bits of
cdb byte 1 was not processed correctly in transport_generic_cmd_sequencer,
as well as the three cases for standby, unavailable, and transition ALUA
primary access state checks.
Also add MAINTENANCE_IN to the excluded list in transport_generic_prepare_cdb()
to prevent the PARAMETER DATA FORMAT bits from being cleared.
Cc: Hannes Reinecke <hare@suse.de>
Cc: Rob Evers <revers@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Roland Dreier <roland@purestorage.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
| -rw-r--r-- | drivers/target/target_core_alua.c | 6 | ||||
| -rw-r--r-- | drivers/target/target_core_transport.c | 3 |
2 files changed, 5 insertions, 4 deletions
diff --git a/drivers/target/target_core_alua.c b/drivers/target/target_core_alua.c index c39ae7cd9895..be7251ee8b3a 100644 --- a/drivers/target/target_core_alua.c +++ b/drivers/target/target_core_alua.c @@ -387,7 +387,7 @@ static inline int core_alua_state_standby( case RECEIVE_DIAGNOSTIC: case SEND_DIAGNOSTIC: case MAINTENANCE_IN: - switch (cdb[1]) { + switch (cdb[1] & 0x1f) { case MI_REPORT_TARGET_PGS: return 0; default: @@ -429,7 +429,7 @@ static inline int core_alua_state_unavailable( case INQUIRY: case REPORT_LUNS: case MAINTENANCE_IN: - switch (cdb[1]) { + switch (cdb[1] & 0x1f) { case MI_REPORT_TARGET_PGS: return 0; default: @@ -469,7 +469,7 @@ static inline int core_alua_state_transition( case INQUIRY: case REPORT_LUNS: case MAINTENANCE_IN: - switch (cdb[1]) { + switch (cdb[1] & 0x1f) { case MI_REPORT_TARGET_PGS: return 0; default: diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c index 2a34d0e4c24c..f95a74da4d40 100644 --- a/drivers/target/target_core_transport.c +++ b/drivers/target/target_core_transport.c @@ -1329,6 +1329,7 @@ static inline void transport_generic_prepare_cdb( case VERIFY_16: /* SBC - VRProtect */ case WRITE_VERIFY: /* SBC - VRProtect */ case WRITE_VERIFY_12: /* SBC - VRProtect */ + case MAINTENANCE_IN: /* SPC - Parameter Data Format for SA RTPG */ break; default: cdb[1] &= 0x1f; /* clear logical unit number */ @@ -2597,7 +2598,7 @@ static int transport_generic_cmd_sequencer( /* * Check for emulated MI_REPORT_TARGET_PGS. */ - if (cdb[1] == MI_REPORT_TARGET_PGS && + if ((cdb[1] & 0x1f) == MI_REPORT_TARGET_PGS && su_dev->t10_alua.alua_type == SPC3_ALUA_EMULATED) { cmd->execute_cmd = target_emulate_report_target_port_groups; |