[PATCH v12 15/15] ufs: core: mcq: Enable Multi Circular Queue
From: Asutosh Das <quic_asutoshd@quicinc.com>
Date: 2023-01-03 19:16:18
Also in:
linux-arm-msm, linux-mediatek, linux-scsi, lkml
Subsystem:
scsi subsystem, the rest, universal flash storage host controller driver · Maintainers:
"James E.J. Bottomley", "Martin K. Petersen", Linus Torvalds
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> Reviewed-by: Stanley Chu <redacted> --- 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 4d31131..8fae2ce 100644
--- a/drivers/ufs/core/ufshcd.c
+++ b/drivers/ufs/core/ufshcd.c@@ -8455,6 +8455,12 @@ 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],
--
2.7.4
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