From mboxrd@z Thu Jan 1 00:00:00 1970 From: Leon Romanovsky Subject: [PATCH mlx5-next v1 1/7] net/mlx5: Set uid as part of CQ commands Date: Thu, 20 Sep 2018 21:35:20 +0300 Message-ID: <20180920183526.13995-2-leon@kernel.org> References: <20180920183526.13995-1-leon@kernel.org> Return-path: In-Reply-To: <20180920183526.13995-1-leon@kernel.org> Sender: netdev-owner@vger.kernel.org To: Doug Ledford , Jason Gunthorpe Cc: Leon Romanovsky , RDMA mailing list , Yishai Hadas , Saeed Mahameed , linux-netdev List-Id: linux-rdma@vger.kernel.org From: Yishai Hadas Set uid as part of CQ commands so that the firmware can manage the CQ object in a secured way. The firmware should mark this CQ with the given uid so that it can be used later on only by objects with the same uid. Upon DEVX flows that use this CQ (e.g. create QP command), the pointed CQ must have the same uid as of the issuer uid command. When a command is issued with uid=0 it means that the issuer of the command is trusted (i.e. kernel), in that case any pointed object can be used regardless of its uid. Signed-off-by: Yishai Hadas Signed-off-by: Leon Romanovsky --- drivers/net/ethernet/mellanox/mlx5/core/cq.c | 4 ++++ include/linux/mlx5/cq.h | 1 + include/linux/mlx5/mlx5_ifc.h | 6 +++--- 3 files changed, 8 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/cq.c b/drivers/net/ethernet/mellanox/mlx5/core/cq.c index a4179122a279..4b85abb5c9f7 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/cq.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/cq.c @@ -109,6 +109,7 @@ int mlx5_core_create_cq(struct mlx5_core_dev *dev, struct mlx5_core_cq *cq, cq->cons_index = 0; cq->arm_sn = 0; cq->eq = eq; + cq->uid = MLX5_GET(create_cq_in, in, uid); refcount_set(&cq->refcount, 1); init_completion(&cq->free); if (!cq->comp) @@ -144,6 +145,7 @@ int mlx5_core_create_cq(struct mlx5_core_dev *dev, struct mlx5_core_cq *cq, memset(dout, 0, sizeof(dout)); MLX5_SET(destroy_cq_in, din, opcode, MLX5_CMD_OP_DESTROY_CQ); MLX5_SET(destroy_cq_in, din, cqn, cq->cqn); + MLX5_SET(destroy_cq_in, din, uid, cq->uid); mlx5_cmd_exec(dev, din, sizeof(din), dout, sizeof(dout)); return err; } @@ -165,6 +167,7 @@ int mlx5_core_destroy_cq(struct mlx5_core_dev *dev, struct mlx5_core_cq *cq) MLX5_SET(destroy_cq_in, in, opcode, MLX5_CMD_OP_DESTROY_CQ); MLX5_SET(destroy_cq_in, in, cqn, cq->cqn); + MLX5_SET(destroy_cq_in, in, uid, cq->uid); err = mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out)); if (err) return err; @@ -196,6 +199,7 @@ int mlx5_core_modify_cq(struct mlx5_core_dev *dev, struct mlx5_core_cq *cq, u32 out[MLX5_ST_SZ_DW(modify_cq_out)] = {0}; MLX5_SET(modify_cq_in, in, opcode, MLX5_CMD_OP_MODIFY_CQ); + MLX5_SET(modify_cq_in, in, uid, cq->uid); return mlx5_cmd_exec(dev, in, inlen, out, sizeof(out)); } EXPORT_SYMBOL(mlx5_core_modify_cq); diff --git a/include/linux/mlx5/cq.h b/include/linux/mlx5/cq.h index 0ef6138eca49..31a750570c38 100644 --- a/include/linux/mlx5/cq.h +++ b/include/linux/mlx5/cq.h @@ -61,6 +61,7 @@ struct mlx5_core_cq { int reset_notify_added; struct list_head reset_notify; struct mlx5_eq *eq; + u16 uid; }; diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h index a14c4eaff53f..e62a0825d35c 100644 --- a/include/linux/mlx5/mlx5_ifc.h +++ b/include/linux/mlx5/mlx5_ifc.h @@ -5630,7 +5630,7 @@ enum { struct mlx5_ifc_modify_cq_in_bits { u8 opcode[0x10]; - u8 reserved_at_10[0x10]; + u8 uid[0x10]; u8 reserved_at_20[0x10]; u8 op_mod[0x10]; @@ -6405,7 +6405,7 @@ struct mlx5_ifc_destroy_cq_out_bits { struct mlx5_ifc_destroy_cq_in_bits { u8 opcode[0x10]; - u8 reserved_at_10[0x10]; + u8 uid[0x10]; u8 reserved_at_20[0x10]; u8 op_mod[0x10]; @@ -7165,7 +7165,7 @@ struct mlx5_ifc_create_cq_out_bits { struct mlx5_ifc_create_cq_in_bits { u8 opcode[0x10]; - u8 reserved_at_10[0x10]; + u8 uid[0x10]; u8 reserved_at_20[0x10]; u8 op_mod[0x10];