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From: Ranjan Kumar <ranjan.kumar@broadcom.com>
To: linux-scsi@vger.kernel.org, martin.petersen@oracle.com
Cc: rajsekhar.chundru@broadcom.com, sathya.prakash@broadcom.com,
	sumit.saxena@broadcom.com,
	Ranjan Kumar <ranjan.kumar@broadcom.com>,
	Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Subject: [PATCH 5/6] mpi3mr: NVMe commands size greater than 8K fails
Date: Tue, 28 Feb 2023 06:08:34 -0800	[thread overview]
Message-ID: <20230228140835.4075-6-ranjan.kumar@broadcom.com> (raw)
In-Reply-To: <20230228140835.4075-1-ranjan.kumar@broadcom.com>

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A wrong variable is checked while populating PRP entries in the PRP
page and that results in failure .Hence no PRP entries in the PRP
page were successfully created and any NVMe Encapsulated commands
with PRP of size greater than 8K failed

Signed-off-by: Ranjan Kumar <ranjan.kumar@broadcom.com>
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
---
 drivers/scsi/mpi3mr/mpi3mr_app.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/mpi3mr/mpi3mr_app.c b/drivers/scsi/mpi3mr/mpi3mr_app.c
index 9baac224b213..49318ba893c8 100644
--- a/drivers/scsi/mpi3mr/mpi3mr_app.c
+++ b/drivers/scsi/mpi3mr/mpi3mr_app.c
@@ -894,7 +894,7 @@ static int mpi3mr_build_nvme_prp(struct mpi3mr_ioc *mrioc,
 			 * each time through the loop.
 			 */
 			*prp_entry = cpu_to_le64(dma_addr);
-			if (*prp1_entry & sgemod_mask) {
+			if (*prp_entry & sgemod_mask) {
 				dprint_bsg_err(mrioc,
 				    "%s: PRP address collides with SGE modifier\n",
 				    __func__);
@@ -903,7 +903,7 @@ static int mpi3mr_build_nvme_prp(struct mpi3mr_ioc *mrioc,
 			*prp_entry &= ~sgemod_mask;
 			*prp_entry |= sgemod_val;
 			prp_entry++;
-			prp_entry_dma++;
+			prp_entry_dma += prp_size;
 		}
 
 		/*
-- 
2.31.1


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  parent reply	other threads:[~2023-02-28 14:09 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-02-28 14:08 [PATCH 0/6] This patchset contains critical Bug fixes Ranjan Kumar
2023-02-28 14:08 ` [PATCH 1/6] mpi3mr: IOCTL timeout when disable/enable Interpt Ranjan Kumar
2023-02-28 14:08 ` [PATCH 2/6] mpi3mr: Driver unload crash host when enhanced logging is enabled Ranjan Kumar
2023-02-28 14:08 ` [PATCH 3/6] mpi3mr: Wait for diagnostic save during controller init Ranjan Kumar
2023-02-28 14:08 ` [PATCH 4/6] mpi3mr: appropriate return values for failures in firmware init path Ranjan Kumar
2023-02-28 14:08 ` Ranjan Kumar [this message]
2023-02-28 14:08 ` [PATCH 6/6] mpi3mr: Bad drive in topology results kernel crash Ranjan Kumar
2023-03-07  2:57 ` [PATCH 0/6] This patchset contains critical Bug fixes Martin K. Petersen
2023-03-27 16:13   ` Salvatore Bonaccorso
2023-04-03  1:04     ` Martin K. Petersen

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