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| Dir : //usr/include/rdma/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__ */