/* * Copyright (c) 2007 Cisco Systems, Inc. All rights reserved. * * This software is available to you under a choice of one of two * licenses. You may choose to be licensed under the terms of the GNU * General Public License (GPL) Version 2, available from the file * COPYING in the main directory of this source tree, or the * OpenIB.org BSD license below: * * Redistribution and use in source and binary forms, with or * without modification, are permitted provided that the following * conditions are met: * * - Redistributions of source code must retain the above * copyright notice, this list of conditions and the following * disclaimer. * * - Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following * disclaimer in the documentation and/or other materials * provided with the distribution. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #ifndef MLX4_CQ_H #define MLX4_CQ_H #include <linux/types.h> #include <linux/mlx4/device.h> #include <linux/mlx4/doorbell.h> struct mlx4_cqe { __be32 my_qpn; __be32 immed_rss_invalid; __be32 g_mlpath_rqpn; u8 sl; u8 reserved1; __be16 rlid; u32 reserved2; __be32 byte_cnt; __be16 wqe_index; __be16 checksum; u8 reserved3[3]; u8 owner_sr_opcode; }; struct mlx4_err_cqe { __be32 my_qpn; u32 reserved1[5]; __be16 wqe_index; u8 vendor_err_syndrome; u8 syndrome; u8 reserved2[3]; u8 owner_sr_opcode; }; enum { MLX4_CQE_OWNER_MASK = 0x80, MLX4_CQE_IS_SEND_MASK = 0x40, MLX4_CQE_OPCODE_MASK = 0x1f }; enum { MLX4_CQE_SYNDROME_LOCAL_LENGTH_ERR = 0x01, MLX4_CQE_SYNDROME_LOCAL_QP_OP_ERR = 0x02, MLX4_CQE_SYNDROME_LOCAL_PROT_ERR = 0x04, MLX4_CQE_SYNDROME_WR_FLUSH_ERR = 0x05, MLX4_CQE_SYNDROME_MW_BIND_ERR = 0x06, MLX4_CQE_SYNDROME_BAD_RESP_ERR = 0x10, MLX4_CQE_SYNDROME_LOCAL_ACCESS_ERR = 0x11, MLX4_CQE_SYNDROME_REMOTE_INVAL_REQ_ERR = 0x12, MLX4_CQE_SYNDROME_REMOTE_ACCESS_ERR = 0x13, MLX4_CQE_SYNDROME_REMOTE_OP_ERR = 0x14, MLX4_CQE_SYNDROME_TRANSPORT_RETRY_EXC_ERR = 0x15, MLX4_CQE_SYNDROME_RNR_RETRY_EXC_ERR = 0x16, MLX4_CQE_SYNDROME_REMOTE_ABORTED_ERR = 0x22, }; static inline void mlx4_cq_arm(struct mlx4_cq *cq, u32 cmd, void __iomem *uar_page, spinlock_t *doorbell_lock) { __be32 doorbell[2]; u32 sn; u32 ci; sn = cq->arm_sn & 3; ci = cq->cons_index & 0xffffff; *cq->arm_db = cpu_to_be32(sn << 28 | cmd | ci); /* * Make sure that the doorbell record in host memory is * written before ringing the doorbell via PCI MMIO. */ wmb(); doorbell[0] = cpu_to_be32(sn << 28 | cmd | cq->cqn); doorbell[1] = cpu_to_be32(ci); mlx4_write64(doorbell, uar_page + MLX4_CQ_DOORBELL, doorbell_lock); } static inline void mlx4_cq_set_ci(struct mlx4_cq *cq) { *cq->set_ci_db = cpu_to_be32(cq->cons_index & 0xffffff); } enum { MLX4_CQ_DB_REQ_NOT_SOL = 1 << 24, MLX4_CQ_DB_REQ_NOT = 2 << 24 }; #endif /* MLX4_CQ_H */