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qedr-abi.h
/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR Linux-OpenIB) */ /* QLogic qedr NIC Driver * Copyright (c) 2015-2016 QLogic Corporation * * 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 __QEDR_USER_H__ #define __QEDR_USER_H__ #include <linux/types.h> #define QEDR_ABI_VERSION (8) /* user kernel communication data structures. */ enum qedr_alloc_ucontext_flags { QEDR_ALLOC_UCTX_EDPM_MODE = 1 << 0, QEDR_ALLOC_UCTX_DB_REC = 1 << 1, QEDR_SUPPORT_DPM_SIZES = 1 << 2, }; struct qedr_alloc_ucontext_req { __u32 context_flags; __u32 reserved; }; #define QEDR_LDPM_MAX_SIZE (8192) #define QEDR_EDPM_TRANS_SIZE (64) #define QEDR_EDPM_MAX_SIZE (ROCE_REQ_MAX_INLINE_DATA_SIZE) enum qedr_rdma_dpm_type { QEDR_DPM_TYPE_NONE = 0, QEDR_DPM_TYPE_ROCE_ENHANCED = 1 << 0, QEDR_DPM_TYPE_ROCE_LEGACY = 1 << 1, QEDR_DPM_TYPE_IWARP_LEGACY = 1 << 2, QEDR_DPM_TYPE_ROCE_EDPM_MODE = 1 << 3, QEDR_DPM_SIZES_SET = 1 << 4, }; struct qedr_alloc_ucontext_resp { __aligned_u64 db_pa; __u32 db_size; __u32 max_send_wr; __u32 max_recv_wr; __u32 max_srq_wr; __u32 sges_per_send_wr; __u32 sges_per_recv_wr; __u32 sges_per_srq_wr; __u32 max_cqes; __u8 dpm_flags; __u8 wids_enabled; __u16 wid_count; __u16 ldpm_limit_size; __u8 edpm_trans_size; __u8 reserved; __u16 edpm_limit_size; __u8 padding[6]; }; struct qedr_alloc_pd_ureq { __aligned_u64 rsvd1; }; struct qedr_alloc_pd_uresp { __u32 pd_id; __u32 reserved; }; struct qedr_create_cq_ureq { __aligned_u64 addr; __aligned_u64 len; }; struct qedr_create_cq_uresp { __u32 db_offset; __u16 icid; __u16 reserved; __aligned_u64 db_rec_addr; }; struct qedr_create_qp_ureq { __u32 qp_handle_hi; __u32 qp_handle_lo; /* SQ */ /* user space virtual address of SQ buffer */ __aligned_u64 sq_addr; /* length of SQ buffer */ __aligned_u64 sq_len; /* RQ */ /* user space virtual address of RQ buffer */ __aligned_u64 rq_addr; /* length of RQ buffer */ __aligned_u64 rq_len; }; struct qedr_create_qp_uresp { __u32 qp_id; __u32 atomic_supported; /* SQ */ __u32 sq_db_offset; __u16 sq_icid; /* RQ */ __u32 rq_db_offset; __u16 rq_icid; __u32 rq_db2_offset; __u32 reserved; /* address of SQ doorbell recovery user entry */ __aligned_u64 sq_db_rec_addr; /* address of RQ doorbell recovery user entry */ __aligned_u64 rq_db_rec_addr; }; struct qedr_create_srq_ureq { /* user space virtual address of producer pair */ __aligned_u64 prod_pair_addr; /* user space virtual address of SRQ buffer */ __aligned_u64 srq_addr; /* length of SRQ buffer */ __aligned_u64 srq_len; }; struct qedr_create_srq_uresp { __u16 srq_id; __u16 reserved0; __u32 reserved1; }; /* doorbell recovery entry allocated and populated by userspace doorbelling * entities and mapped to kernel. Kernel uses this to register doorbell * information with doorbell drop recovery mechanism. */ struct qedr_user_db_rec { __aligned_u64 db_data; /* doorbell data */ }; #endif /* __QEDR_USER_H__ */