diff options
| author | Nicholas Bellinger <nab@linux-iscsi.org> | 2013-12-23 20:33:21 +0000 |
|---|---|---|
| committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2014-01-18 09:53:13 +0000 |
| commit | 43bb95c7c06de358de7ab525d28bb89b470c1892 (patch) | |
| tree | b9060e1dd8c2e5789b83447e6188fd062c14b43f | |
| parent | bdbad2bdcbda68746cdff36459cfb1bf4b1d5e59 (diff) | |
| download | linux-43bb95c7c06de358de7ab525d28bb89b470c1892.tar.bz2 | |
target/spc: Add protection related bits to INQUIRY EVPD=0x86
This patch updates spc_emulate_evpd_86() (extended INQUIRY) to
report GRD_CHK (Guard Check) and REF_CHK (Reference Check) bits
when DIF emulation is enabled by the backend device.
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.de>
Cc: Sagi Grimberg <sagig@mellanox.com>
Cc: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
| -rw-r--r-- | drivers/target/target_core_spc.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/target/target_core_spc.c b/drivers/target/target_core_spc.c index 4178c2a0f210..73fdff58d88d 100644 --- a/drivers/target/target_core_spc.c +++ b/drivers/target/target_core_spc.c @@ -475,6 +475,15 @@ spc_emulate_evpd_86(struct se_cmd *cmd, unsigned char *buf) struct se_device *dev = cmd->se_dev; buf[3] = 0x3c; + /* + * Set GRD_CHK + REF_CHK for TYPE1 protection, or GRD_CHK + * only for TYPE3 protection. + */ + if (dev->dev_attrib.pi_prot_type == TARGET_DIF_TYPE1_PROT) + buf[4] = 0x5; + else if (dev->dev_attrib.pi_prot_type == TARGET_DIF_TYPE3_PROT) + buf[4] = 0x4; + /* Set HEADSUP, ORDSUP, SIMPSUP */ buf[5] = 0x07; |