diff options
| author |   oulijun <oulijun@huawei.com> | 2017-11-10 16:55:53 +0800 |
|---|---|---|
| committer |   Doug Ledford <dledford@redhat.com> | 2017-11-10 12:32:43 -0500 |
| commit | 26beb85f4168dba76a197883065398a55ce11cf4 (patch) | |
| tree | 4698ae9976d10886a61cc40b5ddd8dbec863a14d /drivers/infiniband/hw/hns/hns_roce_cq.c | |
| parent | RDMA/hns: Unify the calculation for hem index in hip08 (diff) | |
| download | linux-dev-26beb85f4168dba76a197883065398a55ce11cf4.tar.xz linux-dev-26beb85f4168dba76a197883065398a55ce11cf4.zip | |
RDMA/hns: Modify the usage of cmd_sn in hip08
The cmd_sn field of CQ doorbell inits for 0. It should be
increment on each first db rung after a completion Event.
if the cmd_sn of notify doorbell Adjacent two times is the
same, the hardware will distinguish it for the same notify
request and update its type according to the priority level
of next event and solicited event.
Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/hw/hns/hns_roce_cq.c')
| -rw-r--r-- | drivers/infiniband/hw/hns/hns_roce_cq.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/hns/hns_roce_cq.c b/drivers/infiniband/hw/hns/hns_roce_cq.c index f558f95d8827..2111b57a3489 100644 --- a/drivers/infiniband/hw/hns/hns_roce_cq.c +++ b/drivers/infiniband/hw/hns/hns_roce_cq.c @@ -156,6 +156,7 @@ static int hns_roce_cq_alloc(struct hns_roce_dev *hr_dev, int nent, } hr_cq->cons_index = 0; + hr_cq->arm_sn = 1; hr_cq->uar = hr_uar; atomic_set(&hr_cq->refcount, 1); @@ -456,6 +457,7 @@ void hns_roce_cq_completion(struct hns_roce_dev *hr_dev, u32 cqn) return; } + ++cq->arm_sn; cq->comp(cq); } |