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RDMA/drivers: Remove udata check from special QP

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GSI QP can't be created from the user space, hence the udata check is
always false (udata == NULL). Remove that check and simplify the flow.

Link: https://lore.kernel.org/r/20200926102450.2966017-9-leon@kernel.org
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
This commit is contained in:
Leon Romanovsky 2020-09-26 13:24:48 +03:00 committed by Jason Gunthorpe
parent 5807bb3205
commit b925c555a1
6 changed files with 20 additions and 69 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

59
drivers/infiniband/hw/hns/hns_roce_qp.c
View file

@ -1015,53 +1015,32 @@ struct ib_qp *hns_roce_create_qp(struct ib_pd *pd,
int ret;
switch (init_attr->qp_type) {
case IB_QPT_RC: {
hr_qp = kzalloc(sizeof(*hr_qp), GFP_KERNEL);
if (!hr_qp)
return ERR_PTR(-ENOMEM);
ret = hns_roce_create_qp_common(hr_dev, pd, init_attr, udata,
hr_qp);
if (ret) {
ibdev_err(ibdev, "Create QP 0x%06lx failed(%d)\n",
hr_qp->qpn, ret);
kfree(hr_qp);
return ERR_PTR(ret);
}
case IB_QPT_RC:
case IB_QPT_GSI:
break;
}
case IB_QPT_GSI: {
/* Userspace is not allowed to create special QPs: */
if (udata) {
ibdev_err(ibdev, "not support usr space GSI\n");
return ERR_PTR(-EINVAL);
}
hr_qp = kzalloc(sizeof(*hr_qp), GFP_KERNEL);
if (!hr_qp)
return ERR_PTR(-ENOMEM);
hr_qp->port = init_attr->port_num - 1;
hr_qp->phy_port = hr_dev->iboe.phy_port[hr_qp->port];
ret = hns_roce_create_qp_common(hr_dev, pd, init_attr, udata,
hr_qp);
if (ret) {
ibdev_err(ibdev, "Create GSI QP failed!\n");
kfree(hr_qp);
return ERR_PTR(ret);
}
break;
}
default:{
default:
ibdev_err(ibdev, "not support QP type %d\n",
init_attr->qp_type);
return ERR_PTR(-EOPNOTSUPP);
}
hr_qp = kzalloc(sizeof(*hr_qp), GFP_KERNEL);
if (!hr_qp)
return ERR_PTR(-ENOMEM);
if (init_attr->qp_type == IB_QPT_GSI) {
hr_qp->port = init_attr->port_num - 1;
hr_qp->phy_port = hr_dev->iboe.phy_port[hr_qp->port];
}
ret = hns_roce_create_qp_common(hr_dev, pd, init_attr, udata, hr_qp);
if (ret) {
ibdev_err(ibdev, "Create QP type 0x%x failed(%d)\n",
init_attr->qp_type, ret);
ibdev_err(ibdev, "Create GSI QP failed!\n");
kfree(hr_qp);
return ERR_PTR(ret);
}
return &hr_qp->ibqp;
}

3
drivers/infiniband/hw/mlx4/qp.c
View file

@ -1544,9 +1544,6 @@ static int _mlx4_ib_create_qp(struct ib_pd *pd, struct mlx4_ib_qp *qp,
{
int sqpn;
/* Userspace is not allowed to create special QPs: */
if (udata)
return -EINVAL;
if (init_attr->create_flags & MLX4_IB_QP_CREATE_ROCE_V2_GSI) {
int res = mlx4_qp_reserve_range(to_mdev(pd->device)->dev,
1, 1, &sqpn, 0,

12
drivers/infiniband/hw/mlx5/qp.c
View file

@ -2511,18 +2511,6 @@ static int check_valid_flow(struct mlx5_ib_dev *dev, struct ib_pd *pd,
return -EINVAL;
}
switch (attr->qp_type) {
case IB_QPT_SMI:
case MLX5_IB_QPT_HW_GSI:
case MLX5_IB_QPT_REG_UMR:
case IB_QPT_GSI:
mlx5_ib_dbg(dev, "Kernel doesn't support QP type %d\n",
attr->qp_type);
return -EINVAL;
default:
break;
}
/*
* We don't need to see this warning, it means that kernel code
* missing ib_pd. Placed here to catch developer's mistakes.

4
drivers/infiniband/hw/mthca/mthca_provider.c
View file

@ -535,10 +535,6 @@ static struct ib_qp *mthca_create_qp(struct ib_pd *pd,
case IB_QPT_SMI:
case IB_QPT_GSI:
{
/* Don't allow userspace to create special QPs */
if (udata)
return ERR_PTR(-EINVAL);
qp = kzalloc(sizeof(struct mthca_sqp), GFP_KERNEL);
if (!qp)
return ERR_PTR(-ENOMEM);

8
drivers/infiniband/hw/qedr/verbs.c
View file

@ -1235,14 +1235,6 @@ static int qedr_check_qp_attrs(struct ib_pd *ibpd, struct qedr_dev *dev,
return -EINVAL;
}
/* Unprivileged user space cannot create special QP */
if (udata && attrs->qp_type == IB_QPT_GSI) {
DP_ERR(dev,
"create qp: userspace can't create special QPs of type=0x%x\n",
attrs->qp_type);
return -EINVAL;
}
/* verify consumer QPs are not trying to use GSI QP's CQ.
* TGT QP isn't associated with RQ/SQ
*/

3
drivers/infiniband/hw/vmw_pvrdma/pvrdma_qp.c
View file

@ -232,8 +232,7 @@ struct ib_qp *pvrdma_create_qp(struct ib_pd *pd,
switch (init_attr->qp_type) {
case IB_QPT_GSI:
if (init_attr->port_num == 0 ||
init_attr->port_num > pd->device->phys_port_cnt ||
udata) {
init_attr->port_num > pd->device->phys_port_cnt) {
dev_warn(&dev->pdev->dev, "invalid queuepair attrs\n");
ret = -EINVAL;
goto err_qp;