From 59082a327d0145c69b419a0f5bed96b13c5e9ed4 Mon Sep 17 00:00:00 2001 From: Matan Barak Date: Thu, 31 May 2018 16:43:35 +0300 Subject: [PATCH] IB/core: Support passing uhw for create_flow This is required when user-space drivers need to pass extra information regarding how to handle this flow steering specification. Reviewed-by: Yishai Hadas Signed-off-by: Matan Barak Signed-off-by: Boris Pismenny Signed-off-by: Leon Romanovsky Signed-off-by: Jason Gunthorpe --- drivers/infiniband/core/uverbs_cmd.c | 7 ++++++- drivers/infiniband/core/verbs.c | 2 +- drivers/infiniband/hw/mlx4/main.c | 6 +++++- drivers/infiniband/hw/mlx5/main.c | 7 ++++++- include/rdma/ib_verbs.h | 3 ++- 5 files changed, 20 insertions(+), 5 deletions(-) diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c index 13cb5e4deb86..c735c13e53b0 100644 --- a/drivers/infiniband/core/uverbs_cmd.c +++ b/drivers/infiniband/core/uverbs_cmd.c @@ -3513,11 +3513,16 @@ int ib_uverbs_ex_create_flow(struct ib_uverbs_file *file, err = -EINVAL; goto err_free; } - flow_id = ib_create_flow(qp, flow_attr, IB_FLOW_DOMAIN_USER); + + flow_id = qp->device->create_flow(qp, flow_attr, + IB_FLOW_DOMAIN_USER, uhw); + if (IS_ERR(flow_id)) { err = PTR_ERR(flow_id); goto err_free; } + atomic_inc(&qp->usecnt); + flow_id->qp = qp; flow_id->uobject = uobj; uobj->object = flow_id; uflow = container_of(uobj, typeof(*uflow), uobject); diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c index 7eff3aeffe01..9a3e886c12fd 100644 --- a/drivers/infiniband/core/verbs.c +++ b/drivers/infiniband/core/verbs.c @@ -1982,7 +1982,7 @@ struct ib_flow *ib_create_flow(struct ib_qp *qp, if (!qp->device->create_flow) return ERR_PTR(-EOPNOTSUPP); - flow_id = qp->device->create_flow(qp, flow_attr, domain); + flow_id = qp->device->create_flow(qp, flow_attr, domain, NULL); if (!IS_ERR(flow_id)) { atomic_inc(&qp->usecnt); flow_id->qp = qp; diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c index 5b70744f414a..5b88bdd1ecef 100644 --- a/drivers/infiniband/hw/mlx4/main.c +++ b/drivers/infiniband/hw/mlx4/main.c @@ -1847,7 +1847,7 @@ static int mlx4_ib_add_dont_trap_rule(struct mlx4_dev *dev, static struct ib_flow *mlx4_ib_create_flow(struct ib_qp *qp, struct ib_flow_attr *flow_attr, - int domain) + int domain, struct ib_udata *udata) { int err = 0, i = 0, j = 0; struct mlx4_ib_flow *mflow; @@ -1865,6 +1865,10 @@ static struct ib_flow *mlx4_ib_create_flow(struct ib_qp *qp, (flow_attr->type != IB_FLOW_ATTR_NORMAL)) return ERR_PTR(-EOPNOTSUPP); + if (udata && + udata->inlen && !ib_is_udata_cleared(udata, 0, udata->inlen)) + return ERR_PTR(-EOPNOTSUPP); + memset(type, 0, sizeof(type)); mflow = kzalloc(sizeof(*mflow), GFP_KERNEL); diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c index daa919e5a442..e94df85ddf08 100644 --- a/drivers/infiniband/hw/mlx5/main.c +++ b/drivers/infiniband/hw/mlx5/main.c @@ -3245,7 +3245,8 @@ static struct mlx5_ib_flow_handler *create_sniffer_rule(struct mlx5_ib_dev *dev, static struct ib_flow *mlx5_ib_create_flow(struct ib_qp *qp, struct ib_flow_attr *flow_attr, - int domain) + int domain, + struct ib_udata *udata) { struct mlx5_ib_dev *dev = to_mdev(qp->device); struct mlx5_ib_qp *mqp = to_mqp(qp); @@ -3257,6 +3258,10 @@ static struct ib_flow *mlx5_ib_create_flow(struct ib_qp *qp, int err; int underlay_qpn; + if (udata && + udata->inlen && !ib_is_udata_cleared(udata, 0, udata->inlen)) + return ERR_PTR(-EOPNOTSUPP); + if (flow_attr->priority > MLX5_IB_FLOW_LAST_PRIO) return ERR_PTR(-ENOMEM); diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index 3769a1cc99b0..ea97b91dd88c 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -2427,7 +2427,8 @@ struct ib_device { struct ib_flow * (*create_flow)(struct ib_qp *qp, struct ib_flow_attr *flow_attr, - int domain); + int domain, + struct ib_udata *udata); int (*destroy_flow)(struct ib_flow *flow_id); int (*check_mr_status)(struct ib_mr *mr, u32 check_mask, struct ib_mr_status *mr_status); -- GitLab