From: Nicholas Bellinger <[email protected]> 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 <[email protected]> Cc: Christoph Hellwig <[email protected]> Cc: Hannes Reinecke <[email protected]> Cc: Sagi Grimberg <[email protected]> Cc: Or Gerlitz <[email protected]> Signed-off-by: Nicholas Bellinger <[email protected]> --- drivers/target/target_core_spc.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/target/target_core_spc.c b/drivers/target/target_core_spc.c index 4178c2a..73fdff5 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; -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
