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1/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR Linux-OpenIB) */2/* QLogic qedr NIC Driver3 * Copyright (c) 2015-2016 QLogic Corporation4 *5 * This software is available to you under a choice of one of two6 * licenses. You may choose to be licensed under the terms of the GNU7 * General Public License (GPL) Version 2, available from the file8 * COPYING in the main directory of this source tree, or the9 * OpenIB.org BSD license below:10 *11 * Redistribution and use in source and binary forms, with or12 * without modification, are permitted provided that the following13 * conditions are met:14 *15 * - Redistributions of source code must retain the above16 * copyright notice, this list of conditions and the following17 * disclaimer.18 *19 * - Redistributions in binary form must reproduce the above20 * copyright notice, this list of conditions and the following21 * disclaimer in the documentation and /or other materials22 * provided with the distribution.23 *24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,25 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF26 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND27 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS28 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN29 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN30 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE31 * SOFTWARE.32 */33#ifndef __QEDR_USER_H__34#define __QEDR_USER_H__35 36#include <linux/types.h>37 38#define QEDR_ABI_VERSION (8)39 40/* user kernel communication data structures. */41enum qedr_alloc_ucontext_flags {42 QEDR_ALLOC_UCTX_EDPM_MODE = 1 << 0,43 QEDR_ALLOC_UCTX_DB_REC = 1 << 1,44 QEDR_SUPPORT_DPM_SIZES = 1 << 2,45};46 47struct qedr_alloc_ucontext_req {48 __u32 context_flags;49 __u32 reserved;50};51 52#define QEDR_LDPM_MAX_SIZE (8192)53#define QEDR_EDPM_TRANS_SIZE (64)54#define QEDR_EDPM_MAX_SIZE (ROCE_REQ_MAX_INLINE_DATA_SIZE)55 56enum qedr_rdma_dpm_type {57 QEDR_DPM_TYPE_NONE = 0,58 QEDR_DPM_TYPE_ROCE_ENHANCED = 1 << 0,59 QEDR_DPM_TYPE_ROCE_LEGACY = 1 << 1,60 QEDR_DPM_TYPE_IWARP_LEGACY = 1 << 2,61 QEDR_DPM_TYPE_ROCE_EDPM_MODE = 1 << 3,62 QEDR_DPM_SIZES_SET = 1 << 4,63};64 65struct qedr_alloc_ucontext_resp {66 __aligned_u64 db_pa;67 __u32 db_size;68 69 __u32 max_send_wr;70 __u32 max_recv_wr;71 __u32 max_srq_wr;72 __u32 sges_per_send_wr;73 __u32 sges_per_recv_wr;74 __u32 sges_per_srq_wr;75 __u32 max_cqes;76 __u8 dpm_flags;77 __u8 wids_enabled;78 __u16 wid_count;79 __u16 ldpm_limit_size;80 __u8 edpm_trans_size;81 __u8 reserved;82 __u16 edpm_limit_size;83 __u8 padding[6];84};85 86struct qedr_alloc_pd_ureq {87 __aligned_u64 rsvd1;88};89 90struct qedr_alloc_pd_uresp {91 __u32 pd_id;92 __u32 reserved;93};94 95struct qedr_create_cq_ureq {96 __aligned_u64 addr;97 __aligned_u64 len;98};99 100struct qedr_create_cq_uresp {101 __u32 db_offset;102 __u16 icid;103 __u16 reserved;104 __aligned_u64 db_rec_addr;105};106 107struct qedr_create_qp_ureq {108 __u32 qp_handle_hi;109 __u32 qp_handle_lo;110 111 /* SQ */112 /* user space virtual address of SQ buffer */113 __aligned_u64 sq_addr;114 115 /* length of SQ buffer */116 __aligned_u64 sq_len;117 118 /* RQ */119 /* user space virtual address of RQ buffer */120 __aligned_u64 rq_addr;121 122 /* length of RQ buffer */123 __aligned_u64 rq_len;124};125 126struct qedr_create_qp_uresp {127 __u32 qp_id;128 __u32 atomic_supported;129 130 /* SQ */131 __u32 sq_db_offset;132 __u16 sq_icid;133 134 /* RQ */135 __u32 rq_db_offset;136 __u16 rq_icid;137 138 __u32 rq_db2_offset;139 __u32 reserved;140 141 /* address of SQ doorbell recovery user entry */142 __aligned_u64 sq_db_rec_addr;143 144 /* address of RQ doorbell recovery user entry */145 __aligned_u64 rq_db_rec_addr;146 147};148 149struct qedr_create_srq_ureq {150 /* user space virtual address of producer pair */151 __aligned_u64 prod_pair_addr;152 153 /* user space virtual address of SRQ buffer */154 __aligned_u64 srq_addr;155 156 /* length of SRQ buffer */157 __aligned_u64 srq_len;158};159 160struct qedr_create_srq_uresp {161 __u16 srq_id;162 __u16 reserved0;163 __u32 reserved1;164};165 166/* doorbell recovery entry allocated and populated by userspace doorbelling167 * entities and mapped to kernel. Kernel uses this to register doorbell168 * information with doorbell drop recovery mechanism.169 */170struct qedr_user_db_rec {171 __aligned_u64 db_data; /* doorbell data */172};173 174#endif /* __QEDR_USER_H__ */175