[v9,16/16] ufs: core: mcq: Enable Multi Circular Queue

Message ID	9fa85d2d02e275ced5c92736587a42ef20bcbe21.1669850856.git.quic_asutoshd@quicinc.com
State	Superseded
Headers	show Return-Path: <linux-scsi-owner@kernel.org> From: Asutosh Das <quic_asutoshd@quicinc.com> To: <quic_cang@quicinc.com>, <martin.petersen@oracle.com>, <linux-scsi@vger.kernel.org> CC: <quic_nguyenb@quicinc.com>, <quic_xiaosenh@quicinc.com>, <stanley.chu@mediatek.com>, <eddie.huang@mediatek.com>, <daejun7.park@samsung.com>, <bvanassche@acm.org>, <avri.altman@wdc.com>, <mani@kernel.org>, <beanhuo@micron.com>, Asutosh Das <quic_asutoshd@quicinc.com>, <linux-arm-msm@vger.kernel.org>, Alim Akhtar <alim.akhtar@samsung.com>, "James E.J. Bottomley" <jejb@linux.ibm.com>, Jinyoung Choi <j-young.choi@samsung.com>, open list <linux-kernel@vger.kernel.org> Subject: [PATCH v9 16/16] ufs: core: mcq: Enable Multi Circular Queue Date: Wed, 30 Nov 2022 15:50:48 -0800 Message-ID: <9fa85d2d02e275ced5c92736587a42ef20bcbe21.1669850856.git.quic_asutoshd@quicinc.com> In-Reply-To: <cover.1669850856.git.quic_asutoshd@quicinc.com> References: <cover.1669850856.git.quic_asutoshd@quicinc.com> MIME-Version: 1.0 Content-Type: text/plain Precedence: bulk
Series	Add Multi Circular Queue Support \| expand [v9,00/16] Add Multi Circular Queue Support [v9,01/16] ufs: core: Optimize duplicate code to read extended feature [v9,02/16] ufs: core: Probe for ext_iid support [v9,03/16] ufs: core: Introduce Multi-circular queue capability [v9,04/16] ufs: core: Defer adding host to scsi if mcq is supported [v9,05/16] ufs: core: mcq: Add support to allocate multiple queues [v9,06/16] ufs: core: mcq: Configure resource regions [v9,07/16] ufs: core: mcq: Calculate queue depth [v9,08/16] ufs: core: mcq: Allocate memory for mcq mode [v9,09/16] ufs: core: mcq: Configure operation and runtime interface [v9,10/16] ufs: core: mcq: Use shared tags for MCQ mode [v9,11/16] ufs: core: Prepare ufshcd_send_command for mcq [v9,12/16] ufs: core: mcq: Find hardware queue to queue request [v9,13/16] ufs: core: Prepare for completion in mcq [v9,14/16] ufs: mcq: Add completion support of a cqe [v9,15/16] ufs: core: mcq: Add completion support in poll [v9,16/16] ufs: core: mcq: Enable Multi Circular Queue

Message ID

9fa85d2d02e275ced5c92736587a42ef20bcbe21.1669850856.git.quic_asutoshd@quicinc.com

State

Superseded

Headers

From: Asutosh Das <quic_asutoshd@quicinc.com>
To: <quic_cang@quicinc.com>, <martin.petersen@oracle.com>,
        <linux-scsi@vger.kernel.org>
CC: <quic_nguyenb@quicinc.com>, <quic_xiaosenh@quicinc.com>,
        <stanley.chu@mediatek.com>, <eddie.huang@mediatek.com>,
        <daejun7.park@samsung.com>, <bvanassche@acm.org>,
        <avri.altman@wdc.com>, <mani@kernel.org>, <beanhuo@micron.com>,
        Asutosh Das <quic_asutoshd@quicinc.com>,
        <linux-arm-msm@vger.kernel.org>,
        Alim Akhtar <alim.akhtar@samsung.com>,
        "James E.J. Bottomley" <jejb@linux.ibm.com>,
        Jinyoung Choi <j-young.choi@samsung.com>,
        open list <linux-kernel@vger.kernel.org>
Subject: [PATCH v9 16/16] ufs: core: mcq: Enable Multi Circular Queue
Date: Wed, 30 Nov 2022 15:50:48 -0800
Message-ID: 
 <9fa85d2d02e275ced5c92736587a42ef20bcbe21.1669850856.git.quic_asutoshd@quicinc.com>
In-Reply-To: <cover.1669850856.git.quic_asutoshd@quicinc.com>
References: <cover.1669850856.git.quic_asutoshd@quicinc.com>
MIME-Version: 1.0
Content-Type: text/plain
Precedence: bulk

Series

Add Multi Circular Queue Support | expand

Commit Message

Asutosh Das Nov. 30, 2022, 11:50 p.m. UTC

Enable MCQ in the Host Controller.

Signed-off-by: Asutosh Das <quic_asutoshd@quicinc.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Manivannan Sadhasivam <mani@kernel.org>
---
 drivers/ufs/core/ufshcd.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c
index adf3597..e9d6891 100644
--- a/drivers/ufs/core/ufshcd.c
+++ b/drivers/ufs/core/ufshcd.c
@@ -8381,6 +8381,12 @@  static void ufshcd_config_mcq(struct ufs_hba *hba)
 
 	hba->host->can_queue = hba->nutrs - UFSHCD_NUM_RESERVED;
 	hba->reserved_slot = hba->nutrs - UFSHCD_NUM_RESERVED;
+
+	/* Select MCQ mode */
+	ufshcd_writel(hba, ufshcd_readl(hba, REG_UFS_MEM_CFG) | 0x1,
+		      REG_UFS_MEM_CFG);
+	hba->mcq_enabled = true;
+
 	dev_info(hba->dev, "MCQ configured, nr_queues=%d, io_queues=%d, read_queue=%d, poll_queues=%d, queue_depth=%d\n",
 		 hba->nr_hw_queues, hba->nr_queues[HCTX_TYPE_DEFAULT],
 		 hba->nr_queues[HCTX_TYPE_READ], hba->nr_queues[HCTX_TYPE_POLL],

[v9,16/16] ufs: core: mcq: Enable Multi Circular Queue

Commit Message

Patch