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From: Po-Wen Kao <powen.kao@mediatek.com>
To: <linux-scsi@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>,
	<linux-mediatek@lists.infradead.org>,
	Alim Akhtar <alim.akhtar@samsung.com>,
	Avri Altman <avri.altman@wdc.com>,
	Bart Van Assche <bvanassche@acm.org>,
	"James E.J. Bottomley" <jejb@linux.ibm.com>,
	"Martin K. Petersen" <martin.petersen@oracle.com>,
	Matthias Brugger <matthias.bgg@gmail.com>
Cc: <wsd_upstream@mediatek.com>, <peter.wang@mediatek.com>,
	<stanley.chu@mediatek.com>, <powen.kao@mediatek.com>,
	<alice.chao@mediatek.com>, <naomi.chu@mediatek.com>,
	<chun-hung.wu@mediatek.com>, <cc.chou@mediatek.com>,
	<eddie.huang@mediatek.com>, <mason.zhang@mediatek.com>,
	<chaotian.jing@mediatek.com>, <jiajie.hao@mediatek.com>
Subject: [PATCH v4 1/5] scsi: ufs: core: Fix mcq tag calcualtion
Date: Tue, 7 Mar 2023 14:54:42 +0800	[thread overview]
Message-ID: <20230307065448.15279-2-powen.kao@mediatek.com> (raw)
In-Reply-To: <20230307065448.15279-1-powen.kao@mediatek.com>

Transfer command descriptor is allocated in ufshcd_memory_alloc()
and referenced by transfer request descriptor with stride size
sizeof_utp_transfer_cmd_desc()
instead of
sizeof(struct utp_transfer_cmd_desc).

Consequently, computing tag by address offset should also refer to the
same stride.

Signed-off-by: Po-Wen Kao <powen.kao@mediatek.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Manivannan Sadhasivam <mani@kernel.org>
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Reviewed-by: Ziqi Chen <quic_ziqichen@quicinc.com>
---
 drivers/ufs/core/ufs-mcq.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/ufs/core/ufs-mcq.c b/drivers/ufs/core/ufs-mcq.c
index 31df052fbc41..3a27fa4b0024 100644
--- a/drivers/ufs/core/ufs-mcq.c
+++ b/drivers/ufs/core/ufs-mcq.c
@@ -265,7 +265,7 @@ static int ufshcd_mcq_get_tag(struct ufs_hba *hba,
 	addr = (le64_to_cpu(cqe->command_desc_base_addr) & CQE_UCD_BA) -
 		hba->ucdl_dma_addr;
 
-	return div_u64(addr, sizeof(struct utp_transfer_cmd_desc));
+	return div_u64(addr, sizeof_utp_transfer_cmd_desc(hba));
 }
 
 static void ufshcd_mcq_process_cqe(struct ufs_hba *hba,
-- 
2.18.0


WARNING: multiple messages have this Message-ID (diff)
From: Po-Wen Kao <powen.kao@mediatek.com>
To: <linux-scsi@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>,
	<linux-mediatek@lists.infradead.org>,
	Alim Akhtar <alim.akhtar@samsung.com>,
	Avri Altman <avri.altman@wdc.com>,
	Bart Van Assche <bvanassche@acm.org>,
	"James E.J. Bottomley" <jejb@linux.ibm.com>,
	"Martin K. Petersen" <martin.petersen@oracle.com>,
	Matthias Brugger <matthias.bgg@gmail.com>
Cc: <wsd_upstream@mediatek.com>, <peter.wang@mediatek.com>,
	<stanley.chu@mediatek.com>, <powen.kao@mediatek.com>,
	<alice.chao@mediatek.com>, <naomi.chu@mediatek.com>,
	<chun-hung.wu@mediatek.com>, <cc.chou@mediatek.com>,
	<eddie.huang@mediatek.com>, <mason.zhang@mediatek.com>,
	<chaotian.jing@mediatek.com>, <jiajie.hao@mediatek.com>
Subject: [PATCH v4 1/5] scsi: ufs: core: Fix mcq tag calcualtion
Date: Tue, 7 Mar 2023 14:54:42 +0800	[thread overview]
Message-ID: <20230307065448.15279-2-powen.kao@mediatek.com> (raw)
In-Reply-To: <20230307065448.15279-1-powen.kao@mediatek.com>

Transfer command descriptor is allocated in ufshcd_memory_alloc()
and referenced by transfer request descriptor with stride size
sizeof_utp_transfer_cmd_desc()
instead of
sizeof(struct utp_transfer_cmd_desc).

Consequently, computing tag by address offset should also refer to the
same stride.

Signed-off-by: Po-Wen Kao <powen.kao@mediatek.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Manivannan Sadhasivam <mani@kernel.org>
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Reviewed-by: Ziqi Chen <quic_ziqichen@quicinc.com>
---
 drivers/ufs/core/ufs-mcq.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/ufs/core/ufs-mcq.c b/drivers/ufs/core/ufs-mcq.c
index 31df052fbc41..3a27fa4b0024 100644
--- a/drivers/ufs/core/ufs-mcq.c
+++ b/drivers/ufs/core/ufs-mcq.c
@@ -265,7 +265,7 @@ static int ufshcd_mcq_get_tag(struct ufs_hba *hba,
 	addr = (le64_to_cpu(cqe->command_desc_base_addr) & CQE_UCD_BA) -
 		hba->ucdl_dma_addr;
 
-	return div_u64(addr, sizeof(struct utp_transfer_cmd_desc));
+	return div_u64(addr, sizeof_utp_transfer_cmd_desc(hba));
 }
 
 static void ufshcd_mcq_process_cqe(struct ufs_hba *hba,
-- 
2.18.0


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  reply	other threads:[~2023-03-07  6:55 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-03-07  6:54 [PATCH v4 0/5] Several UFS MCQ Code Changes Po-Wen Kao
2023-03-07  6:54 ` Po-Wen Kao
2023-03-07  6:54 ` Po-Wen Kao [this message]
2023-03-07  6:54   ` [PATCH v4 1/5] scsi: ufs: core: Fix mcq tag calcualtion Po-Wen Kao
2023-03-07  6:54 ` [PATCH v4 2/5] scsi: ufs: core: Rename symbol sizeof_utp_transfer_cmd_desc() Po-Wen Kao
2023-03-07  6:54   ` Po-Wen Kao
2023-03-07  6:54 ` [PATCH v4 3/5] scsi: ufs: core: Fix mcq nr_hw_queues Po-Wen Kao
2023-03-07  6:54   ` Po-Wen Kao
2023-04-21 20:06   ` Bart Van Assche
2023-04-21 20:06     ` Bart Van Assche
2023-03-07  6:54 ` [PATCH v4 4/5] scsi: ufs: core: Export symbols for MTK driver module Po-Wen Kao
2023-03-07  6:54   ` Po-Wen Kao
2023-03-07  6:54 ` [PATCH v4 5/5] scsi: ufs: ufs-mediatek: Add MCQ support for MTK platform Po-Wen Kao
2023-03-07  6:54   ` Po-Wen Kao
2023-03-11  2:05   ` Stanley Chu
2023-03-11  2:05     ` Stanley Chu
2023-03-13 21:36   ` Bart Van Assche
2023-03-13 21:36     ` Bart Van Assche
2023-03-14  3:29     ` Powen Kao (高伯文)
2023-03-14  3:29       ` Powen Kao (高伯文)
2023-03-15 16:00       ` Bart Van Assche
2023-03-15 16:00         ` Bart Van Assche

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