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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>
This commit is contained in:
Yixian Liu 2021-02-05 17:39:33 +08:00 committed by Jason Gunthorpe
parent 62490fd5a8
commit cd0a4baf36
1 changed files with 0 additions and 6 deletions
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6
drivers/infiniband/hw/hns/hns_roce_hw_v2.c
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@ -5669,9 +5669,6 @@ static int hns_roce_v2_aeq_int(struct hns_roce_dev *hr_dev,
++eq->cons_index; ++eq->cons_index;
aeqe_found = 1; 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); hns_roce_v2_init_irq_work(hr_dev, eq, queue_num);
aeqe = next_aeqe_sw_v2(eq); 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; ++eq->cons_index;
ceqe_found = 1; ceqe_found = 1;
if (eq->cons_index > (EQ_DEPTH_COEFF * eq->entries - 1))
eq->cons_index = 0;
ceqe = next_ceqe_sw_v2(eq); ceqe = next_ceqe_sw_v2(eq);
} }