linux-kernel - [PATCH v7 6/8] mpt3sas: Don't modify EEDPTagMode field setting on SAS3.5 HBA devices

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Date:   Wed, 31 Oct 2018 18:53:37 +0530
From:   Suganath Prabu <suganath-prabu.subramani@...adcom.com>
To:     linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Sathya.Prakash@...adcom.com, sreekanth.reddy@...adcom.com,
        Suganath Prabu <suganath-prabu.subramani@...adcom.com>
Subject: [PATCH v7 6/8] mpt3sas: Don't modify EEDPTagMode field setting on SAS3.5 HBA devices

If EEDPTagMode field in manufacturing page11 is set then
unset it. This is needed to fix a hardware bug only
in SAS3/SAS2 cards. So, skipping EEDPTagMode changes
in Manufacturing page11 for SAS 3.5 controllers.

Signed-off-by: Suganath Prabu <suganath-prabu.subramani@...adcom.com>
---
 drivers/scsi/mpt3sas/mpt3sas_base.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.c b/drivers/scsi/mpt3sas/mpt3sas_base.c
index f25bc3c..9254b52 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_base.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_base.c
@@ -4060,7 +4060,7 @@ _base_static_config_pages(struct MPT3SAS_ADAPTER *ioc)
 	 * flag unset in NVDATA.
 	 */
 	mpt3sas_config_get_manufacturing_pg11(ioc, &mpi_reply, &ioc->manu_pg11);
-	if (ioc->manu_pg11.EEDPTagMode == 0) {
+	if (!ioc->is_gen35_ioc && ioc->manu_pg11.EEDPTagMode == 0) {
 		pr_err("%s: overriding NVDATA EEDPTagMode setting\n",
 		    ioc->name);
 		ioc->manu_pg11.EEDPTagMode &= ~0x3;
-- 
1.8.3.1