mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-25 02:09:42 +00:00
RDMA/hns: Bugfix for mapping user db
When the maximum send wr delivered by the user is zero, the qp does not
have a sq.
When allocating the sq db buffer to store the user sq pi pointer and map
it to the kernel mode, max_send_wr is used as the trigger condition, while
the kernel does not consider the max_send_wr trigger condition when
mapmping db. It will cause sq record doorbell map fail and create qp fail.
The failed print information as follows:
hns3 0000:7d:00.1: Send cmd: tail - 418, opcode - 0x8504, flag - 0x0011, retval - 0x0000
hns3 0000:7d:00.1: Send cmd: 0xe59dc000 0x00000000 0x00000000 0x00000000 0x00000116 0x0000ffff
hns3 0000:7d:00.1: sq record doorbell map failed!
hns3 0000:7d:00.1: Create RC QP failed
Fixes: 0425e3e6e0
("RDMA/hns: Support flush cqe for hip08 in kernel space")
Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
parent
67f269b37f
commit
2557fabd6e
1 changed files with 1 additions and 1 deletions
|
@ -533,7 +533,7 @@ static int hns_roce_set_kernel_sq_size(struct hns_roce_dev *hr_dev,
|
|||
|
||||
static int hns_roce_qp_has_sq(struct ib_qp_init_attr *attr)
|
||||
{
|
||||
if (attr->qp_type == IB_QPT_XRC_TGT)
|
||||
if (attr->qp_type == IB_QPT_XRC_TGT || !attr->cap.max_send_wr)
|
||||
return 0;
|
||||
|
||||
return 1;
|
||||
|
|
Loading…
Reference in a new issue