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

From: Asutosh Das
Date: Wed Nov 30 2022 - 19:12:10 EST


Enable MCQ in the Host Controller.

Signed-off-by: Asutosh Das <quic_asutoshd@xxxxxxxxxxx>
Reviewed-by: Bart Van Assche <bvanassche@xxxxxxx>
Reviewed-by: Manivannan Sadhasivam <mani@xxxxxxxxxx>
---
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],
--
2.7.4