ionic-abi.h

  1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
  2/* Copyright (C) 2018-2025, Advanced Micro Devices, Inc */
  3
  4#ifndef IONIC_ABI_H
  5#define IONIC_ABI_H
  6
  7#include <linux/types.h>
  8
  9#define IONIC_ABI_VERSION	1
 10
 11#define IONIC_EXPDB_64		1
 12#define IONIC_EXPDB_128		2
 13#define IONIC_EXPDB_256		4
 14#define IONIC_EXPDB_512		8
 15
 16#define IONIC_EXPDB_SQ		1
 17#define IONIC_EXPDB_RQ		2
 18
 19#define IONIC_CMB_ENABLE	1
 20#define IONIC_CMB_REQUIRE	2
 21#define IONIC_CMB_EXPDB		4
 22#define IONIC_CMB_WC		8
 23#define IONIC_CMB_UC		16
 24
 25struct ionic_ctx_req {
 26	__u32 rsvd[2];
 27};
 28
 29struct ionic_ctx_resp {
 30	__u32 rsvd;
 31	__u32 page_shift;
 32
 33	__aligned_u64 dbell_offset;
 34
 35	__u16 version;
 36	__u8 qp_opcodes;
 37	__u8 admin_opcodes;
 38
 39	__u8 sq_qtype;
 40	__u8 rq_qtype;
 41	__u8 cq_qtype;
 42	__u8 admin_qtype;
 43
 44	__u8 max_stride;
 45	__u8 max_spec;
 46	__u8 udma_count;
 47	__u8 expdb_mask;
 48	__u8 expdb_qtypes;
 49
 50	__u8 rsvd2[3];
 51};
 52
 53struct ionic_qdesc {
 54	__aligned_u64 addr;
 55	__u32 size;
 56	__u16 mask;
 57	__u8 depth_log2;
 58	__u8 stride_log2;
 59};
 60
 61struct ionic_ah_resp {
 62	__u32 ahid;
 63	__u32 pad;
 64};
 65
 66struct ionic_cq_req {
 67	struct ionic_qdesc cq[2];
 68	__u8 udma_mask;
 69	__u8 rsvd[7];
 70};
 71
 72struct ionic_cq_resp {
 73	__u32 cqid[2];
 74	__u8 udma_mask;
 75	__u8 rsvd[7];
 76};
 77
 78struct ionic_qp_req {
 79	struct ionic_qdesc sq;
 80	struct ionic_qdesc rq;
 81	__u8 sq_spec;
 82	__u8 rq_spec;
 83	__u8 sq_cmb;
 84	__u8 rq_cmb;
 85	__u8 udma_mask;
 86	__u8 rsvd[3];
 87};
 88
 89struct ionic_qp_resp {
 90	__u32 qpid;
 91	__u8 sq_cmb;
 92	__u8 rq_cmb;
 93	__u8 udma_idx;
 94	__u8 rsvd[1];
 95	__aligned_u64 sq_cmb_offset;
 96	__aligned_u64 rq_cmb_offset;
 97};
 98
 99struct ionic_srq_req {
100	struct ionic_qdesc rq;
101	__u8 rq_spec;
102	__u8 rq_cmb;
103	__u8 udma_mask;
104	__u8 rsvd[5];
105};
106
107struct ionic_srq_resp {
108	__u32 qpid;
109	__u8 rq_cmb;
110	__u8 udma_idx;
111	__u8 rsvd[2];
112	__aligned_u64 rq_cmb_offset;
113};
114
115#endif /* IONIC_ABI_H */