diff options
| author | Asutosh Das <quic_asutoshd@quicinc.com> | 2023-01-13 12:48:43 -0800 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2023-01-13 21:03:37 -0500 |
| commit | 7224c806876e46cfaf46b1c90da8d5c2e1f2108f (patch) | |
| tree | f70fed34f15b3333b9a4d069b3bb54ea0ee46e0b /drivers/ufs/host | |
| parent | c263b4ef737e622e2a908c58ca4bb68a89376387 (diff) | |
scsi: ufs: core: mcq: Calculate queue depth
The UFS device defines the supported queuedepth by bqueuedepth which has a
max value of 256. The HC defines MAC (Max Active Commands) that defines
the max number of commands that in flight to the UFS device. Calculate and
configure the nutrs based on both these values.
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: Manivannan Sadhasivam <mani@kernel.org>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/ufs/host')
| -rw-r--r-- | drivers/ufs/host/ufs-qcom.c | 7 | ||||
| -rw-r--r-- | drivers/ufs/host/ufs-qcom.h | 1 |
2 files changed, 8 insertions, 0 deletions
diff --git a/drivers/ufs/host/ufs-qcom.c b/drivers/ufs/host/ufs-qcom.c index 2a1434ff0501..edd7225065df 100644 --- a/drivers/ufs/host/ufs-qcom.c +++ b/drivers/ufs/host/ufs-qcom.c @@ -1496,6 +1496,12 @@ insert_res_err: return ret; } +static int ufs_qcom_get_hba_mac(struct ufs_hba *hba) +{ + /* Qualcomm HC supports up to 64 */ + return MAX_SUPP_MAC; +} + /* * struct ufs_hba_qcom_vops - UFS QCOM specific variant operations * @@ -1521,6 +1527,7 @@ static const struct ufs_hba_variant_ops ufs_hba_qcom_vops = { .program_key = ufs_qcom_ice_program_key, .reinit_notify = ufs_qcom_reinit_notify, .mcq_config_resource = ufs_qcom_mcq_config_resource, + .get_hba_mac = ufs_qcom_get_hba_mac, }; /** diff --git a/drivers/ufs/host/ufs-qcom.h b/drivers/ufs/host/ufs-qcom.h index f744a9e62002..164e18b6b1fb 100644 --- a/drivers/ufs/host/ufs-qcom.h +++ b/drivers/ufs/host/ufs-qcom.h @@ -16,6 +16,7 @@ #define HBRN8_POLL_TOUT_MS 100 #define DEFAULT_CLK_RATE_HZ 1000000 #define BUS_VECTOR_NAME_LEN 32 +#define MAX_SUPP_MAC 64 #define UFS_HW_VER_MAJOR_MASK GENMASK(31, 28) #define UFS_HW_VER_MINOR_MASK GENMASK(27, 16) |