diff options
| author | Asutosh Das <quic_asutoshd@quicinc.com> | 2023-01-13 12:48:41 -0800 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2023-01-13 21:03:36 -0500 |
| commit | 57b1c0ef89ac9d9e7475df7843aeb7672ebcd197 (patch) | |
| tree | 692fbc3c040a4e6c44dc72e5ab6f0c8b0ea9a817 /drivers/ufs/core/ufshcd.c | |
| parent | 0cab4023ec7b49b18145f74ab8389678d6d58878 (diff) | |
scsi: ufs: core: mcq: Add support to allocate multiple queues
Multi-circular queue (MCQ) has been added in UFSHC v4.0 standard in
addition to the Single Doorbell mode. The MCQ mode supports multiple
submission and completion queues. Add support to allocate and configure
the queues. Add module parameters support to configure the queues.
Co-developed-by: Can Guo <quic_cang@quicinc.com>
Signed-off-by: Can Guo <quic_cang@quicinc.com>
Signed-off-by: Asutosh Das <quic_asutoshd@quicinc.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Manivannan Sadhasivam <mani@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/ufs/core/ufshcd.c')
| -rw-r--r-- | drivers/ufs/core/ufshcd.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c index 2cb05a6a0142..97120867a2a0 100644 --- a/drivers/ufs/core/ufshcd.c +++ b/drivers/ufs/core/ufshcd.c @@ -8294,6 +8294,11 @@ out: return ret; } +static int ufshcd_alloc_mcq(struct ufs_hba *hba) +{ + return ufshcd_mcq_init(hba); +} + static int ufshcd_device_init(struct ufs_hba *hba, bool init_dev_params) { int ret; @@ -8333,6 +8338,13 @@ static int ufshcd_device_init(struct ufs_hba *hba, bool init_dev_params) if (ret) return ret; if (is_mcq_supported(hba) && !hba->scsi_host_added) { + ret = ufshcd_alloc_mcq(hba); + if (ret) { + /* Continue with SDB mode */ + use_mcq_mode = false; + dev_err(hba->dev, "MCQ mode is disabled, err=%d\n", + ret); + } ret = scsi_add_host(host, hba->dev); if (ret) { dev_err(hba->dev, "scsi_add_host failed\n"); |