From 244faedfd4d8e8c8e9f3c628d29bb74196b49743 Mon Sep 17 00:00:00 2001 From: Raed Salem Date: Fri, 24 Apr 2020 12:45:05 -0700 Subject: [PATCH] net/mlx5: Refactor imm_inval_pkey field in cqe struct The imm_inval_pkey field can hold four different types of data, depends on the usage, the data could be one of the below: - Immediate field of the received message - Invalidate rkey - Pkey of the packet - Flow table metadata Current implementation doesn't reflect the intended usage of the field at usage time. Reflect the different types by replace this field with a union, modify code where this field is used to reflect its intended usage. Signed-off-by: Raed Salem Reviewed-by: Huy Nguyen Reviewed-by: Tariq Toukan Signed-off-by: Saeed Mahameed --- drivers/infiniband/hw/mlx5/cq.c | 8 ++++---- drivers/net/ethernet/mellanox/mlx5/core/en_tc.c | 2 +- include/linux/mlx5/device.h | 7 ++++++- 3 files changed, 11 insertions(+), 6 deletions(-) diff --git a/drivers/infiniband/hw/mlx5/cq.c b/drivers/infiniband/hw/mlx5/cq.c index 32c05730dfe9..0c18cb6a2f14 100644 --- a/drivers/infiniband/hw/mlx5/cq.c +++ b/drivers/infiniband/hw/mlx5/cq.c @@ -202,7 +202,7 @@ static void handle_responder(struct ib_wc *wc, struct mlx5_cqe64 *cqe, case MLX5_CQE_RESP_WR_IMM: wc->opcode = IB_WC_RECV_RDMA_WITH_IMM; wc->wc_flags = IB_WC_WITH_IMM; - wc->ex.imm_data = cqe->imm_inval_pkey; + wc->ex.imm_data = cqe->immediate; break; case MLX5_CQE_RESP_SEND: wc->opcode = IB_WC_RECV; @@ -214,12 +214,12 @@ static void handle_responder(struct ib_wc *wc, struct mlx5_cqe64 *cqe, case MLX5_CQE_RESP_SEND_IMM: wc->opcode = IB_WC_RECV; wc->wc_flags = IB_WC_WITH_IMM; - wc->ex.imm_data = cqe->imm_inval_pkey; + wc->ex.imm_data = cqe->immediate; break; case MLX5_CQE_RESP_SEND_INV: wc->opcode = IB_WC_RECV; wc->wc_flags = IB_WC_WITH_INVALIDATE; - wc->ex.invalidate_rkey = be32_to_cpu(cqe->imm_inval_pkey); + wc->ex.invalidate_rkey = be32_to_cpu(cqe->inval_rkey); break; } wc->src_qp = be32_to_cpu(cqe->flags_rqpn) & 0xffffff; @@ -227,7 +227,7 @@ static void handle_responder(struct ib_wc *wc, struct mlx5_cqe64 *cqe, g = (be32_to_cpu(cqe->flags_rqpn) >> 28) & 3; wc->wc_flags |= g ? IB_WC_GRH : 0; if (unlikely(is_qp1(qp->ibqp.qp_type))) { - u16 pkey = be32_to_cpu(cqe->imm_inval_pkey) & 0xffff; + u16 pkey = be32_to_cpu(cqe->pkey) & 0xffff; ib_find_cached_pkey(&dev->ib_dev, qp->port, pkey, &wc->pkey_index); diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c index 12c5ca5b93ca..5b632434866f 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c @@ -4891,7 +4891,7 @@ bool mlx5e_tc_rep_update_skb(struct mlx5_cqe64 *cqe, reg_c0 = (be32_to_cpu(cqe->sop_drop_qpn) & MLX5E_TC_FLOW_ID_MASK); if (reg_c0 == MLX5_FS_DEFAULT_FLOW_TAG) reg_c0 = 0; - reg_c1 = be32_to_cpu(cqe->imm_inval_pkey); + reg_c1 = be32_to_cpu(cqe->ft_metadata); if (!reg_c0) return true; diff --git a/include/linux/mlx5/device.h b/include/linux/mlx5/device.h index 7b57877e501e..746e17473d72 100644 --- a/include/linux/mlx5/device.h +++ b/include/linux/mlx5/device.h @@ -767,7 +767,12 @@ struct mlx5_cqe64 { u8 l4_l3_hdr_type; __be16 vlan_info; __be32 srqn; /* [31:24]: lro_num_seg, [23:0]: srqn */ - __be32 imm_inval_pkey; + union { + __be32 immediate; + __be32 inval_rkey; + __be32 pkey; + __be32 ft_metadata; + }; u8 rsvd40[4]; __be32 byte_cnt; __be32 timestamp_h;