diff options
| author | Xiang Chen <chenxiang66@hisilicon.com> | 2017-12-08 20:16:39 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2017-12-15 05:25:02 +0300 |
| commit | 9f347b2face51d782d1e03f2f05b7c3f93a6dc9a (patch) | |
| tree | 99f5626ce03ba88ba46c1c44ec5389676d1a83d9 /drivers/scsi/hisi_sas | |
| parent | e402acdb664134f948b62d13b7db866295689f38 (diff) | |
| download | linux-9f347b2face51d782d1e03f2f05b7c3f93a6dc9a.tar.xz | |
scsi: hisi_sas: change ncq process for v3 hw
For v3 hw, each NCQ will return a CQ, so it is no need to acquire IPTT from
ITCT, just acquire it from IPTT field of CQ.
Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/hisi_sas')
| -rw-r--r-- | drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 40 |
1 files changed, 6 insertions, 34 deletions
diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c index 44f07bc37177..69aa7bc15783 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c +++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c @@ -1653,9 +1653,8 @@ static void cq_tasklet_v3_hw(unsigned long val) struct hisi_sas_cq *cq = (struct hisi_sas_cq *)val; struct hisi_hba *hisi_hba = cq->hisi_hba; struct hisi_sas_slot *slot; - struct hisi_sas_itct *itct; struct hisi_sas_complete_v3_hdr *complete_queue; - u32 rd_point = cq->rd_point, wr_point, dev_id; + u32 rd_point = cq->rd_point, wr_point; int queue = cq->id; struct hisi_sas_dq *dq = &hisi_hba->dq[queue]; @@ -1671,38 +1670,11 @@ static void cq_tasklet_v3_hw(unsigned long val) complete_hdr = &complete_queue[rd_point]; - /* Check for NCQ completion */ - if (complete_hdr->act) { - u32 act_tmp = complete_hdr->act; - int ncq_tag_count = ffs(act_tmp); - - dev_id = (complete_hdr->dw1 & CMPLT_HDR_DEV_ID_MSK) >> - CMPLT_HDR_DEV_ID_OFF; - itct = &hisi_hba->itct[dev_id]; - - /* The NCQ tags are held in the itct header */ - while (ncq_tag_count) { - __le64 *ncq_tag = &itct->qw4_15[0]; - - ncq_tag_count -= 1; - iptt = (ncq_tag[ncq_tag_count / 5] - >> (ncq_tag_count % 5) * 12) & 0xfff; - - slot = &hisi_hba->slot_info[iptt]; - slot->cmplt_queue_slot = rd_point; - slot->cmplt_queue = queue; - slot_complete_v3_hw(hisi_hba, slot); - - act_tmp &= ~(1 << ncq_tag_count); - ncq_tag_count = ffs(act_tmp); - } - } else { - iptt = (complete_hdr->dw1) & CMPLT_HDR_IPTT_MSK; - slot = &hisi_hba->slot_info[iptt]; - slot->cmplt_queue_slot = rd_point; - slot->cmplt_queue = queue; - slot_complete_v3_hw(hisi_hba, slot); - } + iptt = (complete_hdr->dw1) & CMPLT_HDR_IPTT_MSK; + slot = &hisi_hba->slot_info[iptt]; + slot->cmplt_queue_slot = rd_point; + slot->cmplt_queue = queue; + slot_complete_v3_hw(hisi_hba, slot); if (++rd_point >= HISI_SAS_QUEUE_SLOTS) rd_point = 0; |