Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757559AbaAHUgf (ORCPT ); Wed, 8 Jan 2014 15:36:35 -0500 Received: from mail.linux-iscsi.org ([67.23.28.174]:49862 "EHLO linux-iscsi.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757509AbaAHUgZ (ORCPT ); Wed, 8 Jan 2014 15:36:25 -0500 From: "Nicholas A. Bellinger" To: target-devel Cc: linux-scsi , linux-kernel , "Martin K. Petersen" , Christoph Hellwig , Hannes Reinecke , Sagi Grimberg , Or Gerlitz , Nicholas Bellinger Subject: [PATCH 06/14] target/spc: Add protection related bits to INQUIRY EVPD=0x86 Date: Wed, 8 Jan 2014 20:15:49 +0000 Message-Id: <1389212157-14540-7-git-send-email-nab@daterainc.com> X-Mailer: git-send-email 1.7.2.5 In-Reply-To: <1389212157-14540-1-git-send-email-nab@daterainc.com> References: <1389212157-14540-1-git-send-email-nab@daterainc.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Nicholas Bellinger 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. Cc: Martin K. Petersen Cc: Christoph Hellwig Cc: Hannes Reinecke Cc: Sagi Grimberg Cc: Or Gerlitz Signed-off-by: Nicholas Bellinger --- 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 6b06f01..d99eb95 100644 --- a/drivers/target/target_core_spc.c +++ b/drivers/target/target_core_spc.c @@ -441,6 +441,15 @@ 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 majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/