diff options
| author | Asutosh Das <quic_asutoshd@quicinc.com> | 2023-01-13 23:48:46 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2023-01-14 05:03:37 +0300 |
| commit | 0d33728fc0e77adeea95de6e53cf26a4f741e594 (patch) | |
| tree | b2b49e1655a766b399a904bc9c57ecae6a07e834 /drivers/ufs | |
| parent | 2468da61ea095162067ed408824298ba9c3661c8 (diff) | |
| download | linux-0d33728fc0e77adeea95de6e53cf26a4f741e594.tar.xz | |
scsi: ufs: core: mcq: Use shared tags for MCQ mode
Enable shared tags for MCQ. For UFS, this should not have a huge
performance impact. It however simplifies the MCQ implementation and reuses
most of the existing code in the issue and completion path. Also add
multiple queue mapping to map_queue().
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>
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/ufs')
| -rw-r--r-- | drivers/ufs/core/ufs-mcq.c | 2 | ||||
| -rw-r--r-- | drivers/ufs/core/ufshcd.c | 28 |
2 files changed, 18 insertions, 12 deletions
diff --git a/drivers/ufs/core/ufs-mcq.c b/drivers/ufs/core/ufs-mcq.c index 496e2b638c44..8bf222fb4b06 100644 --- a/drivers/ufs/core/ufs-mcq.c +++ b/drivers/ufs/core/ufs-mcq.c @@ -280,6 +280,7 @@ void ufshcd_mcq_make_queues_operational(struct ufs_hba *hba) int ufshcd_mcq_init(struct ufs_hba *hba) { + struct Scsi_Host *host = hba->host; struct ufs_hw_queue *hwq; int ret, i; @@ -315,5 +316,6 @@ int ufshcd_mcq_init(struct ufs_hba *hba) /* Give dev_cmd_queue the minimal number of entries */ hba->dev_cmd_queue->max_entries = MAX_DEV_CMD_ENTRIES; + host->host_tagset = 1; return 0; } diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c index 9d582786dabe..a492c88ccecb 100644 --- a/drivers/ufs/core/ufshcd.c +++ b/drivers/ufs/core/ufshcd.c @@ -2776,24 +2776,28 @@ static inline bool is_device_wlun(struct scsi_device *sdev) */ static void ufshcd_map_queues(struct Scsi_Host *shost) { - int i; + struct ufs_hba *hba = shost_priv(shost); + int i, queue_offset = 0; + + if (!is_mcq_supported(hba)) { + hba->nr_queues[HCTX_TYPE_DEFAULT] = 1; + hba->nr_queues[HCTX_TYPE_READ] = 0; + hba->nr_queues[HCTX_TYPE_POLL] = 1; + hba->nr_hw_queues = 1; + } for (i = 0; i < shost->nr_maps; i++) { struct blk_mq_queue_map *map = &shost->tag_set.map[i]; - switch (i) { - case HCTX_TYPE_DEFAULT: - case HCTX_TYPE_POLL: - map->nr_queues = 1; - break; - case HCTX_TYPE_READ: - map->nr_queues = 0; + map->nr_queues = hba->nr_queues[i]; + if (!map->nr_queues) continue; - default: - WARN_ON_ONCE(true); - } - map->queue_offset = 0; + map->queue_offset = queue_offset; + if (i == HCTX_TYPE_POLL && !is_mcq_supported(hba)) + map->queue_offset = 0; + blk_mq_map_queues(map); + queue_offset += map->nr_queues; } } |