1/* SPDX-License-Identifier: GPL-2.0 or Linux-OpenIB */
2/* Copyright (c) 2015 - 2024 Intel Corporation */
3#ifndef IRDMA_VIRTCHNL_H
4#define IRDMA_VIRTCHNL_H
5
6#include "hmc.h"
7#include "irdma.h"
8
9/* IRDMA_VCHNL_CHNL_VER_V0 is for legacy hw, no longer supported. */
10#define IRDMA_VCHNL_CHNL_VER_V2 2
11#define IRDMA_VCHNL_CHNL_VER_MIN IRDMA_VCHNL_CHNL_VER_V2
12#define IRDMA_VCHNL_CHNL_VER_MAX IRDMA_VCHNL_CHNL_VER_V2
13#define IRDMA_VCHNL_OP_GET_HMC_FCN_V0 0
14#define IRDMA_VCHNL_OP_GET_HMC_FCN_V1 1
15#define IRDMA_VCHNL_OP_GET_HMC_FCN_V2 2
16#define IRDMA_VCHNL_OP_PUT_HMC_FCN_V0 0
17#define IRDMA_VCHNL_OP_GET_REG_LAYOUT_V0 0
18#define IRDMA_VCHNL_OP_QUEUE_VECTOR_MAP_V0 0
19#define IRDMA_VCHNL_OP_QUEUE_VECTOR_UNMAP_V0 0
20#define IRDMA_VCHNL_OP_ADD_VPORT_V0 0
21#define IRDMA_VCHNL_OP_DEL_VPORT_V0 0
22#define IRDMA_VCHNL_OP_GET_RDMA_CAPS_V0 0
23#define IRDMA_VCHNL_OP_GET_RDMA_CAPS_MIN_SIZE 1
24
25#define IRDMA_VCHNL_REG_ID_CQPTAIL 0
26#define IRDMA_VCHNL_REG_ID_CQPDB 1
27#define IRDMA_VCHNL_REG_ID_CCQPSTATUS 2
28#define IRDMA_VCHNL_REG_ID_CCQPHIGH 3
29#define IRDMA_VCHNL_REG_ID_CCQPLOW 4
30#define IRDMA_VCHNL_REG_ID_CQARM 5
31#define IRDMA_VCHNL_REG_ID_CQACK 6
32#define IRDMA_VCHNL_REG_ID_AEQALLOC 7
33#define IRDMA_VCHNL_REG_ID_CQPERRCODES 8
34#define IRDMA_VCHNL_REG_ID_WQEALLOC 9
35#define IRDMA_VCHNL_REG_ID_IPCONFIG0 10
36#define IRDMA_VCHNL_REG_ID_DB_ADDR_OFFSET 11
37#define IRDMA_VCHNL_REG_ID_DYN_CTL 12
38#define IRDMA_VCHNL_REG_ID_AEQITRMASK 13
39#define IRDMA_VCHNL_REG_ID_CEQITRMASK 14
40#define IRDMA_VCHNL_REG_INV_ID 0xFFFF
41#define IRDMA_VCHNL_REG_PAGE_REL 0x8000
42
43#define IRDMA_VCHNL_REGFLD_ID_CCQPSTATUS_CQP_OP_ERR 2
44#define IRDMA_VCHNL_REGFLD_ID_CCQPSTATUS_CCQP_DONE 5
45#define IRDMA_VCHNL_REGFLD_ID_CQPSQ_STAG_PDID 6
46#define IRDMA_VCHNL_REGFLD_ID_CQPSQ_CQ_CEQID 7
47#define IRDMA_VCHNL_REGFLD_ID_CQPSQ_CQ_CQID 8
48#define IRDMA_VCHNL_REGFLD_ID_COMMIT_FPM_CQCNT 9
49#define IRDMA_VCHNL_REGFLD_ID_UPESD_HMCN_ID 10
50#define IRDMA_VCHNL_REGFLD_INV_ID 0xFFFF
51
52#define IRDMA_VCHNL_RESP_MIN_SIZE (sizeof(struct irdma_vchnl_resp_buf))
53
54enum irdma_vchnl_ops {
55 IRDMA_VCHNL_OP_GET_VER = 0,
56 IRDMA_VCHNL_OP_GET_HMC_FCN = 1,
57 IRDMA_VCHNL_OP_PUT_HMC_FCN = 2,
58 IRDMA_VCHNL_OP_GET_REG_LAYOUT = 11,
59 IRDMA_VCHNL_OP_GET_RDMA_CAPS = 13,
60 IRDMA_VCHNL_OP_QUEUE_VECTOR_MAP = 14,
61 IRDMA_VCHNL_OP_QUEUE_VECTOR_UNMAP = 15,
62 IRDMA_VCHNL_OP_ADD_VPORT = 16,
63 IRDMA_VCHNL_OP_DEL_VPORT = 17,
64};
65
66struct irdma_vchnl_req_hmc_info {
67 u8 protocol_used;
68 u8 disable_qos;
69} __packed;
70
71struct irdma_vchnl_resp_hmc_info {
72 u16 hmc_func;
73 u16 qs_handle[IRDMA_MAX_USER_PRIORITY];
74} __packed;
75
76struct irdma_vchnl_qv_info {
77 u32 v_idx;
78 u16 ceq_idx;
79 u16 aeq_idx;
80 u8 itr_idx;
81};
82
83struct irdma_vchnl_qvlist_info {
84 u32 num_vectors;
85 struct irdma_vchnl_qv_info qv_info[];
86};
87
88struct irdma_vchnl_req_vport_info {
89 u16 vport_id;
90 u32 qp1_id;
91};
92
93struct irdma_vchnl_resp_vport_info {
94 u16 qs_handle[IRDMA_MAX_USER_PRIORITY];
95};
96
97struct irdma_vchnl_op_buf {
98 u16 op_code;
99 u16 op_ver;
100 u16 buf_len;
101 u16 rsvd;
102 u64 op_ctx;
103 u8 buf[];
104} __packed;
105
106struct irdma_vchnl_resp_buf {
107 u64 op_ctx;
108 u16 buf_len;
109 s16 op_ret;
110 u16 rsvd[2];
111 u8 buf[];
112} __packed;
113
114struct irdma_vchnl_rdma_caps {
115 u8 hw_rev;
116 u16 cqp_timeout_s;
117 u16 cqp_def_timeout_s;
118 u16 max_hw_push_len;
119} __packed;
120
121struct irdma_vchnl_init_info {
122 struct workqueue_struct *vchnl_wq;
123 enum irdma_vers hw_rev;
124 bool privileged;
125 bool is_pf;
126};
127
128struct irdma_vchnl_reg_info {
129 u32 reg_offset;
130 u16 field_cnt;
131 u16 reg_id; /* High bit of reg_id: bar or page relative */
132};
133
134struct irdma_vchnl_reg_field_info {
135 u8 fld_shift;
136 u8 fld_bits;
137 u16 fld_id;
138};
139
140struct irdma_vchnl_req {
141 struct irdma_vchnl_op_buf *vchnl_msg;
142 void *parm;
143 u32 vf_id;
144 u16 parm_len;
145 u16 resp_len;
146};
147
148struct irdma_vchnl_req_init_info {
149 void *req_parm;
150 void *resp_parm;
151 u16 req_parm_len;
152 u16 resp_parm_len;
153 u16 op_code;
154 u16 op_ver;
155} __packed;
156
157struct irdma_qos;
158
159int irdma_sc_vchnl_init(struct irdma_sc_dev *dev,
160 struct irdma_vchnl_init_info *info);
161int irdma_vchnl_req_get_ver(struct irdma_sc_dev *dev, u16 ver_req,
162 u32 *ver_res);
163int irdma_vchnl_req_get_hmc_fcn(struct irdma_sc_dev *dev);
164int irdma_vchnl_req_put_hmc_fcn(struct irdma_sc_dev *dev);
165int irdma_vchnl_req_get_caps(struct irdma_sc_dev *dev);
166int irdma_vchnl_req_get_resp(struct irdma_sc_dev *dev,
167 struct irdma_vchnl_req *vc_req);
168int irdma_vchnl_req_get_reg_layout(struct irdma_sc_dev *dev);
169int irdma_vchnl_req_aeq_vec_map(struct irdma_sc_dev *dev, u32 v_idx);
170int irdma_vchnl_req_ceq_vec_map(struct irdma_sc_dev *dev, u16 ceq_id,
171 u32 v_idx);
172int irdma_vchnl_req_add_vport(struct irdma_sc_dev *dev, u16 vport_id,
173 u32 qp1_id, struct irdma_qos *qos);
174int irdma_vchnl_req_del_vport(struct irdma_sc_dev *dev, u16 vport_id,
175 u32 qp1_id);
176#endif /* IRDMA_VIRTCHNL_H */
177

source code of linux/drivers/infiniband/hw/irdma/virtchnl.h