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authorYixian Liu <liuyixian@huawei.com>2021-02-05 12:39:33 +0300
committerJason Gunthorpe <jgg@nvidia.com>2021-02-09 03:25:26 +0300
commitcd0a4baf36dafb0a6d1a57be712ab6263ef169bc (patch)
tree64b93550bc14cc876f1d800a89266c65bcdcedc9 /drivers/infiniband
parent62490fd5a8654f9639a6766921ee72f5dbc6a479 (diff)
downloadlinux-cd0a4baf36dafb0a6d1a57be712ab6263ef169bc.tar.xz
RDMA/hns: Remove unnecessary wrap around for EQ's consumer index
The hns driver wrap around the consumer index of AEQ and CEQ when they reach to two times of queue entries number for owner mechanism, actually, it is unnecessary to wrap around since the hardware itself will mask it before use. Link: https://lore.kernel.org/r/1612517974-31867-12-git-send-email-liweihang@huawei.com Signed-off-by: Yixian Liu <liuyixian@huawei.com> Signed-off-by: Weihang Li <liweihang@huawei.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'drivers/infiniband')
-rw-r--r--drivers/infiniband/hw/hns/hns_roce_hw_v2.c6
1 files changed, 0 insertions, 6 deletions
diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
index 45a11fdaaa50..28c2deac58ff 100644
--- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
+++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
@@ -5669,9 +5669,6 @@ static int hns_roce_v2_aeq_int(struct hns_roce_dev *hr_dev,
++eq->cons_index;
aeqe_found = 1;
- if (eq->cons_index > (2 * eq->entries - 1))
- eq->cons_index = 0;
-
hns_roce_v2_init_irq_work(hr_dev, eq, queue_num);
aeqe = next_aeqe_sw_v2(eq);
@@ -5714,9 +5711,6 @@ static int hns_roce_v2_ceq_int(struct hns_roce_dev *hr_dev,
++eq->cons_index;
ceqe_found = 1;
- if (eq->cons_index > (EQ_DEPTH_COEFF * eq->entries - 1))
- eq->cons_index = 0;
-
ceqe = next_ceqe_sw_v2(eq);
}