RDMA/hns: Bugfix for posting multiple srq work request

Browse source

When the user submits more than 32 work request to a srq queue
at a time, it needs to find the corresponding number of entries
in the bitmap in the idx queue. However, the original lookup
function named ffs only processes 32 bits of the array element,
When the number of srq wqe issued exceeds 32, the ffs will only
process the lower 32 bits of the elements, it will not be able
to get the correct wqe index for srq wqe.

Signed-off-by: Xi Wang <wangxi11@huawei.com>
Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

...

This commit is contained in:

Lijun Ou 2019-05-30 23:55:53 +08:00 • committed by Jason Gunthorpe

parent cac2a301c0

commit 97545b1022

3 changed files with 22 additions and 29 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

2

drivers/infiniband/hw/hns/hns_roce_device.h

View file

34

drivers/infiniband/hw/hns/hns_roce_hw_v2.c

View file

15

drivers/infiniband/hw/hns/hns_roce_srq.c

View file