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Commit 43bb95c7 authored by Nicholas Bellinger's avatar Nicholas Bellinger
Browse files

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: default avatarMartin 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: default avatarNicholas Bellinger <nab@linux-iscsi.org>
parent bdbad2bd

drivers/target/target_core_spc.c

+9 −0
Original line number Original line Diff line number Diff line
@@ -475,6 +475,15 @@ spc_emulate_evpd_86(struct se_cmd *cmd, unsigned char *buf) 
	struct se_device *dev = cmd->se_dev;

	struct se_device *dev = cmd->se_dev;





	buf[3] = 0x3c;

	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 */

	/* Set HEADSUP, ORDSUP, SIMPSUP */

	buf[5] = 0x07;

	buf[5] = 0x07;