linux-kernel - [PATCH] scsi: ufs: ufs-mediatek: configure individual LU queue flags

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Message-ID: <20241008065950.23431-1-ed.tsai@mediatek.com>
Date: Tue, 8 Oct 2024 14:59:42 +0800
From: <ed.tsai@...iatek.com>
To: <peter.wang@...iatek.com>, Alim Akhtar <alim.akhtar@...sung.com>, Avri
 Altman <avri.altman@....com>, Bart Van Assche <bvanassche@....org>, "James
 E.J. Bottomley" <James.Bottomley@...senPartnership.com>, "Martin K. Petersen"
	<martin.petersen@...cle.com>, Stanley Jhu <chu.stanley@...il.com>, Matthias
 Brugger <matthias.bgg@...il.com>, AngeloGioacchino Del Regno
	<angelogioacchino.delregno@...labora.com>
CC: <wsd_upstream@...iatek.com>, <chun-hung.wu@...iatek.com>, Ed Tsai
	<ed.tsai@...iatek.com>, <linux-scsi@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <linux-mediatek@...ts.infradead.org>,
	<linux-arm-kernel@...ts.infradead.org>
Subject: [PATCH] scsi: ufs: ufs-mediatek: configure individual LU queue flags

From: Ed Tsai <ed.tsai@...iatek.com>

Previously, ufs vops config_scsi_dev was removed because there were no
users. ufs-mediatek needs it to configure the queue flags for each LU
individually. Therefore, bring it back and customize the queue flag as
we required.

Signed-off-by: Ed Tsai <ed.tsai@...iatek.com>
---
 drivers/ufs/core/ufshcd.c       |  3 +++
 drivers/ufs/host/ufs-mediatek.c | 10 ++++++++++
 include/ufs/ufshcd.h            |  1 +
 3 files changed, 14 insertions(+)

diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c
index 7cab103112e1..be50b86269bf 100644
--- a/drivers/ufs/core/ufshcd.c
+++ b/drivers/ufs/core/ufshcd.c
@@ -5253,6 +5253,9 @@ static int ufshcd_device_configure(struct scsi_device *sdev,
 	 */
 	sdev->silence_suspend = 1;
 
+	if (hba->vops && hba->vops->config_scsi_dev)
+		hba->vops->config_scsi_dev(sdev);
+
 	ufshcd_crypto_register(hba, q);
 
 	return 0;
diff --git a/drivers/ufs/host/ufs-mediatek.c b/drivers/ufs/host/ufs-mediatek.c
index 9a5919434c4e..0b57623edca5 100644
--- a/drivers/ufs/host/ufs-mediatek.c
+++ b/drivers/ufs/host/ufs-mediatek.c
@@ -1780,6 +1780,15 @@ static int ufs_mtk_config_esi(struct ufs_hba *hba)
 	return ufs_mtk_config_mcq(hba, true);
 }
 
+static void ufs_mtk_config_scsi_dev(struct scsi_device *sdev)
+{
+	struct ufs_hba *hba = shost_priv(sdev->host);
+
+	dev_dbg(hba->dev, "lu %llu scsi device configured", sdev->lun);
+	if (sdev->lun == 2)
+		blk_queue_flag_set(QUEUE_FLAG_SAME_FORCE, sdev->reqeust_queue);
+}
+
 /*
  * struct ufs_hba_mtk_vops - UFS MTK specific variant operations
  *
@@ -1809,6 +1818,7 @@ static const struct ufs_hba_variant_ops ufs_hba_mtk_vops = {
 	.op_runtime_config   = ufs_mtk_op_runtime_config,
 	.mcq_config_resource = ufs_mtk_mcq_config_resource,
 	.config_esi          = ufs_mtk_config_esi,
+	.config_scsi_dev     = ufs_mtk_config_scsi_dev,
 };
 
 /**
diff --git a/include/ufs/ufshcd.h b/include/ufs/ufshcd.h
index a95282b9f743..800d79dc91fc 100644
--- a/include/ufs/ufshcd.h
+++ b/include/ufs/ufshcd.h
@@ -383,6 +383,7 @@ struct ufs_hba_variant_ops {
 	int	(*get_outstanding_cqs)(struct ufs_hba *hba,
 				       unsigned long *ocqs);
 	int	(*config_esi)(struct ufs_hba *hba);
+	void	(*config_scsi_dev)(struct scsi_device *sdev);
 };
 
 /* clock gating state  */
-- 
2.45.2