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| author | Lijun Ou <oulijun@huawei.com> | 2020-05-08 17:45:59 +0800 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2020-05-19 20:54:59 -0300 |
| commit | 711195e57d341e58133d92cf8aaab1db24e4768d (patch) | |
| tree | 43ddd6a2777d93fbf3eda1f29f2d092267102ca4 /drivers/infiniband/hw/mlx5/devx.c | |
| parent | 9581a356ccadb24d4a18c62c5c8327997e47241e (diff) | |
RDMA/hns: Reserve one sge in order to avoid local length error
When rq/srq sge length is smaller than sq sge length, it will produce a
local length error and may cause the bus to hang. Therefore, for rq wqe
and srq wqe, one reserved sge pointing to a reserved mr is used to avoid
this error.
Link: https://lore.kernel.org/r/1588931159-56875-10-git-send-email-liweihang@huawei.com
Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers/infiniband/hw/mlx5/devx.c')
0 files changed, 0 insertions, 0 deletions