diff mbox series

[for-next,11/12] RDMA/hns: Remove unnecessary wrap around for EQ's consumer index

Message ID 1612517974-31867-12-git-send-email-liweihang@huawei.com (mailing list archive)
State Accepted
Delegated to: Jason Gunthorpe
Headers show
Series RDMA/hns: Updates for 5.12 | expand

Commit Message

Weihang Li Feb. 5, 2021, 9:39 a.m. UTC 
From: Yixian Liu <liuyixian@huawei.com>

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.

Signed-off-by: Yixian Liu <liuyixian@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
---
 drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 6 ------
 1 file changed, 6 deletions(-)
diff mbox series

Patch

diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
index 55dfd44..9c6fe32 100644
--- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
+++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
@@ -5667,9 +5667,6 @@  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);
@@ -5712,9 +5709,6 @@  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);
 	}