/* * 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_QP_H #define MLX4_QP_H #include <linux/types.h> #include <linux/mlx4/device.h> #define MLX4_INVALID_LKEY 0x100 enum mlx4_qp_optpar { MLX4_QP_OPTPAR_ALT_ADDR_PATH = 1 << 0, MLX4_QP_OPTPAR_RRE = 1 << 1, MLX4_QP_OPTPAR_RAE = 1 << 2, MLX4_QP_OPTPAR_RWE = 1 << 3, MLX4_QP_OPTPAR_PKEY_INDEX = 1 << 4, MLX4_QP_OPTPAR_Q_KEY = 1 << 5, MLX4_QP_OPTPAR_RNR_TIMEOUT = 1 << 6, MLX4_QP_OPTPAR_PRIMARY_ADDR_PATH = 1 << 7, MLX4_QP_OPTPAR_SRA_MAX = 1 << 8, MLX4_QP_OPTPAR_RRA_MAX = 1 << 9, MLX4_QP_OPTPAR_PM_STATE = 1 << 10, MLX4_QP_OPTPAR_RETRY_COUNT = 1 << 12, MLX4_QP_OPTPAR_RNR_RETRY = 1 << 13, MLX4_QP_OPTPAR_ACK_TIMEOUT = 1 << 14, MLX4_QP_OPTPAR_SCHED_QUEUE = 1 << 16 }; enum mlx4_qp_state { MLX4_QP_STATE_RST = 0, MLX4_QP_STATE_INIT = 1, MLX4_QP_STATE_RTR = 2, MLX4_QP_STATE_RTS = 3, MLX4_QP_STATE_SQER = 4, MLX4_QP_STATE_SQD = 5, MLX4_QP_STATE_ERR = 6, MLX4_QP_STATE_SQ_DRAINING = 7, MLX4_QP_NUM_STATE }; enum { MLX4_QP_ST_RC = 0x0, MLX4_QP_ST_UC = 0x1, MLX4_QP_ST_RD = 0x2, MLX4_QP_ST_UD = 0x3, MLX4_QP_ST_MLX = 0x7 }; enum { MLX4_QP_PM_MIGRATED = 0x3, MLX4_QP_PM_ARMED = 0x0, MLX4_QP_PM_REARM = 0x1 }; enum { /* params1 */ MLX4_QP_BIT_SRE = 1 << 15, MLX4_QP_BIT_SWE = 1 << 14, MLX4_QP_BIT_SAE = 1 << 13, /* params2 */ MLX4_QP_BIT_RRE = 1 << 15, MLX4_QP_BIT_RWE = 1 << 14, MLX4_QP_BIT_RAE = 1 << 13, MLX4_QP_BIT_RIC = 1 << 4, }; struct mlx4_qp_path { u8 fl; u8 reserved1[2]; u8 pkey_index; u8 reserved2; u8 grh_mylmc; __be16 rlid; u8 ackto; u8 mgid_index; u8 static_rate; u8 hop_limit; __be32 tclass_flowlabel; u8 rgid[16]; u8 sched_queue; u8 snooper_flags; u8 reserved3[2]; u8 counter_index; u8 reserved4[7]; }; struct mlx4_qp_context { __be32 flags; __be32 pd; u8 mtu_msgmax; u8 rq_size_stride; u8 sq_size_stride; u8 rlkey; __be32 usr_page; __be32 local_qpn; __be32 remote_qpn; struct mlx4_qp_path pri_path; struct mlx4_qp_path alt_path; __be32 params1; u32 reserved1; __be32 next_send_psn; __be32 cqn_send; u32 reserved2[2]; __be32 last_acked_psn; __be32 ssn; __be32 params2; __be32 rnr_nextrecvpsn; __be32 srcd; __be32 cqn_recv; __be64 db_rec_addr; __be32 qkey; __be32 srqn; __be32 msn; __be16 rq_wqe_counter; __be16 sq_wqe_counter; u32 reserved3[2]; __be32 param3; __be32 nummmcpeers_basemkey; u8 log_page_size; u8 reserved4[2]; u8 mtt_base_addr_h; __be32 mtt_base_addr_l; u32 reserved5[10]; }; enum { MLX4_WQE_CTRL_FENCE = 1 << 6, MLX4_WQE_CTRL_CQ_UPDATE = 3 << 2, MLX4_WQE_CTRL_SOLICITED = 1 << 1, }; struct mlx4_wqe_ctrl_seg { __be32 owner_opcode; u8 reserved2[3]; u8 fence_size; /* * High 24 bits are SRC remote buffer; low 8 bits are flags: * [7] SO (strong ordering) * [5] TCP/UDP checksum * [4] IP checksum * [3:2] C (generate completion queue entry) * [1] SE (solicited event) */ __be32 srcrb_flags; /* * imm is immediate data for send/RDMA write w/ immediate; * also invalidation key for send with invalidate; input * modifier for WQEs on CCQs. */ __be32 imm; }; enum { MLX4_WQE_MLX_VL15 = 1 << 17, MLX4_WQE_MLX_SLR = 1 << 16 }; struct mlx4_wqe_mlx_seg { u8 owner; u8 reserved1[2]; u8 opcode; u8 reserved2[3]; u8 size; /* * [17] VL15 * [16] SLR * [15:12] static rate * [11:8] SL * [4] ICRC * [3:2] C * [0] FL (force loopback) */ __be32 flags; __be16 rlid; u16 reserved3; }; struct mlx4_wqe_datagram_seg { __be32 av[8]; __be32 dqpn; __be32 qkey; __be32 reservd[2]; }; struct mlx4_wqe_bind_seg { __be32 flags1; __be32 flags2; __be32 new_rkey; __be32 lkey; __be64 addr; __be64 length; }; struct mlx4_wqe_fmr_seg { __be32 flags; __be32 mem_key; __be64 buf_list; __be64 start_addr; __be64 reg_len; __be32 offset; __be32 page_size; u32 reserved[2]; }; struct mlx4_wqe_fmr_ext_seg { u8 flags; u8 reserved; __be16 app_mask; __be16 wire_app_tag; __be16 mem_app_tag; __be32 wire_ref_tag_base; __be32 mem_ref_tag_base; }; struct mlx4_wqe_local_inval_seg { u8 flags; u8 reserved1[3]; __be32 mem_key; u8 reserved2[3]; u8 guest_id; __be64 pa; }; struct mlx4_wqe_raddr_seg { __be64 raddr; __be32 rkey; u32 reserved; }; struct mlx4_wqe_atomic_seg { __be64 swap_add; __be64 compare; }; struct mlx4_wqe_data_seg { __be32 byte_count; __be32 lkey; __be64 addr; }; enum { MLX4_INLINE_ALIGN = 64, }; struct mlx4_wqe_inline_seg { __be32 byte_count; }; int mlx4_qp_modify(struct mlx4_dev *dev, struct mlx4_mtt *mtt, enum mlx4_qp_state cur_state, enum mlx4_qp_state new_state, struct mlx4_qp_context *context, enum mlx4_qp_optpar optpar, int sqd_event, struct mlx4_qp *qp); int mlx4_qp_query(struct mlx4_dev *dev, struct mlx4_qp *qp, struct mlx4_qp_context *context); static inline struct mlx4_qp *__mlx4_qp_lookup(struct mlx4_dev *dev, u32 qpn) { return radix_tree_lookup(&dev->qp_table_tree, qpn & (dev->caps.num_qps - 1)); } void mlx4_qp_remove(struct mlx4_dev *dev, struct mlx4_qp *qp); #endif /* MLX4_QP_H */