From b925c555a15de8443ecb2e147b54b1bbe9b71fe3 Mon Sep 17 00:00:00 2001 From: Leon Romanovsky Date: Sat, 26 Sep 2020 13:24:48 +0300 Subject: [PATCH] RDMA/drivers: Remove udata check from special QP 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 Signed-off-by: Leon Romanovsky Signed-off-by: Jason Gunthorpe --- drivers/infiniband/hw/hns/hns_roce_qp.c | 57 +++++++------------- drivers/infiniband/hw/mlx4/qp.c | 3 -- drivers/infiniband/hw/mlx5/qp.c | 12 ----- drivers/infiniband/hw/mthca/mthca_provider.c | 4 -- drivers/infiniband/hw/qedr/verbs.c | 8 --- drivers/infiniband/hw/vmw_pvrdma/pvrdma_qp.c | 3 +- 6 files changed, 19 insertions(+), 68 deletions(-) diff --git a/drivers/infiniband/hw/hns/hns_roce_qp.c b/drivers/infiniband/hw/hns/hns_roce_qp.c index 7c3b54881d46..6e06f42be5eb 100644 --- a/drivers/infiniband/hw/hns/hns_roce_qp.c +++ b/drivers/infiniband/hw/hns/hns_roce_qp.c @@ -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; + default: + ibdev_err(ibdev, "not support QP type %d\n", + init_attr->qp_type); + return ERR_PTR(-EOPNOTSUPP); } - 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 = 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 GSI QP failed!\n"); - kfree(hr_qp); - return ERR_PTR(ret); - } - - break; - } - default:{ - ibdev_err(ibdev, "not support QP type %d\n", - init_attr->qp_type); - return ERR_PTR(-EOPNOTSUPP); - } } + 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; } diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c index f810e4df3fbf..5cb8e602294c 100644 --- a/drivers/infiniband/hw/mlx4/qp.c +++ b/drivers/infiniband/hw/mlx4/qp.c @@ -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, diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c index a251aa9da201..600e056798c0 100644 --- a/drivers/infiniband/hw/mlx5/qp.c +++ b/drivers/infiniband/hw/mlx5/qp.c @@ -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. diff --git a/drivers/infiniband/hw/mthca/mthca_provider.c b/drivers/infiniband/hw/mthca/mthca_provider.c index 82ee252fe5aa..5dbddf8faf99 100644 --- a/drivers/infiniband/hw/mthca/mthca_provider.c +++ b/drivers/infiniband/hw/mthca/mthca_provider.c @@ -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); diff --git a/drivers/infiniband/hw/qedr/verbs.c b/drivers/infiniband/hw/qedr/verbs.c index da42cc70e372..23559f1fe96e 100644 --- a/drivers/infiniband/hw/qedr/verbs.c +++ b/drivers/infiniband/hw/qedr/verbs.c @@ -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 */ diff --git a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_qp.c b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_qp.c index 8a385acf6f0c..428256c55065 100644 --- a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_qp.c +++ b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_qp.c @@ -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; -- 2.25.1