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Diffstat (limited to 'include/uapi/rdma/qedr-abi.h')
| -rw-r--r-- | include/uapi/rdma/qedr-abi.h | 174 |
1 files changed, 174 insertions, 0 deletions
diff --git a/include/uapi/rdma/qedr-abi.h b/include/uapi/rdma/qedr-abi.h new file mode 100644 index 000000000..bf7333b2b --- /dev/null +++ b/include/uapi/rdma/qedr-abi.h @@ -0,0 +1,174 @@ +/* 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__ */ |