1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
|
/* SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause */
/*
* Copyright 2018-2024 Amazon.com, Inc. or its affiliates. All rights reserved.
*/
#ifndef _EFA_H_
#define _EFA_H_
#include <linux/bitops.h>
#include <linux/interrupt.h>
#include <linux/pci.h>
#include <rdma/efa-abi.h>
#include <rdma/ib_verbs.h>
#include "efa_com_cmd.h"
#define DRV_MODULE_NAME "efa"
#define DEVICE_NAME "Elastic Fabric Adapter (EFA)"
#define EFA_IRQNAME_SIZE 40
#define EFA_MGMNT_MSIX_VEC_IDX 0
#define EFA_COMP_EQS_VEC_BASE 1
struct efa_irq {
irq_handler_t handler;
void *data;
u32 irqn;
u32 vector;
cpumask_t affinity_hint_mask;
char name[EFA_IRQNAME_SIZE];
};
/* Don't use anything other than atomic64 */
struct efa_stats {
atomic64_t alloc_pd_err;
atomic64_t create_qp_err;
atomic64_t create_cq_err;
atomic64_t reg_mr_err;
atomic64_t alloc_ucontext_err;
atomic64_t create_ah_err;
atomic64_t mmap_err;
atomic64_t keep_alive_rcvd;
};
struct efa_dev {
struct ib_device ibdev;
struct efa_com_dev edev;
struct pci_dev *pdev;
struct efa_com_get_device_attr_result dev_attr;
u64 reg_bar_addr;
u64 reg_bar_len;
u64 mem_bar_addr;
u64 mem_bar_len;
u64 db_bar_addr;
u64 db_bar_len;
unsigned int num_irq_vectors;
int admin_msix_vector_idx;
struct efa_irq admin_irq;
struct efa_stats stats;
/* Array of completion EQs */
struct efa_eq *eqs;
unsigned int neqs;
/* Only stores CQs with interrupts enabled */
struct xarray cqs_xa;
};
struct efa_ucontext {
struct ib_ucontext ibucontext;
u16 uarn;
};
struct efa_pd {
struct ib_pd ibpd;
u16 pdn;
};
struct efa_mr_interconnect_info {
u16 recv_ic_id;
u16 rdma_read_ic_id;
u16 rdma_recv_ic_id;
u8 recv_ic_id_valid : 1;
u8 rdma_read_ic_id_valid : 1;
u8 rdma_recv_ic_id_valid : 1;
};
struct efa_mr {
struct ib_mr ibmr;
struct ib_umem *umem;
struct efa_mr_interconnect_info ic_info;
};
struct efa_cq {
struct ib_cq ibcq;
struct efa_ucontext *ucontext;
dma_addr_t dma_addr;
void *cpu_addr;
struct rdma_user_mmap_entry *mmap_entry;
struct rdma_user_mmap_entry *db_mmap_entry;
size_t size;
u16 cq_idx;
/* NULL when no interrupts requested */
struct efa_eq *eq;
};
struct efa_qp {
struct ib_qp ibqp;
dma_addr_t rq_dma_addr;
void *rq_cpu_addr;
size_t rq_size;
enum ib_qp_state state;
/* Used for saving mmap_xa entries */
struct rdma_user_mmap_entry *sq_db_mmap_entry;
struct rdma_user_mmap_entry *llq_desc_mmap_entry;
struct rdma_user_mmap_entry *rq_db_mmap_entry;
struct rdma_user_mmap_entry *rq_mmap_entry;
u32 qp_handle;
u32 max_send_wr;
u32 max_recv_wr;
u32 max_send_sge;
u32 max_recv_sge;
u32 max_inline_data;
};
struct efa_ah {
struct ib_ah ibah;
u16 ah;
/* dest_addr */
u8 id[EFA_GID_SIZE];
};
struct efa_eq {
struct efa_com_eq eeq;
struct efa_irq irq;
};
int efa_query_device(struct ib_device *ibdev,
struct ib_device_attr *props,
struct ib_udata *udata);
int efa_query_port(struct ib_device *ibdev, u32 port,
struct ib_port_attr *props);
int efa_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr,
int qp_attr_mask,
struct ib_qp_init_attr *qp_init_attr);
int efa_query_gid(struct ib_device *ibdev, u32 port, int index,
union ib_gid *gid);
int efa_query_pkey(struct ib_device *ibdev, u32 port, u16 index,
u16 *pkey);
int efa_alloc_pd(struct ib_pd *ibpd, struct ib_udata *udata);
int efa_dealloc_pd(struct ib_pd *ibpd, struct ib_udata *udata);
int efa_destroy_qp(struct ib_qp *ibqp, struct ib_udata *udata);
int efa_create_qp(struct ib_qp *ibqp, struct ib_qp_init_attr *init_attr,
struct ib_udata *udata);
int efa_destroy_cq(struct ib_cq *ibcq, struct ib_udata *udata);
int efa_create_cq(struct ib_cq *ibcq, const struct ib_cq_init_attr *attr,
struct uverbs_attr_bundle *attrs);
struct ib_mr *efa_reg_mr(struct ib_pd *ibpd, u64 start, u64 length,
u64 virt_addr, int access_flags,
struct ib_udata *udata);
struct ib_mr *efa_reg_user_mr_dmabuf(struct ib_pd *ibpd, u64 start,
u64 length, u64 virt_addr,
int fd, int access_flags,
struct uverbs_attr_bundle *attrs);
int efa_dereg_mr(struct ib_mr *ibmr, struct ib_udata *udata);
int efa_get_port_immutable(struct ib_device *ibdev, u32 port_num,
struct ib_port_immutable *immutable);
int efa_alloc_ucontext(struct ib_ucontext *ibucontext, struct ib_udata *udata);
void efa_dealloc_ucontext(struct ib_ucontext *ibucontext);
int efa_mmap(struct ib_ucontext *ibucontext,
struct vm_area_struct *vma);
void efa_mmap_free(struct rdma_user_mmap_entry *rdma_entry);
int efa_create_ah(struct ib_ah *ibah,
struct rdma_ah_init_attr *init_attr,
struct ib_udata *udata);
int efa_destroy_ah(struct ib_ah *ibah, u32 flags);
int efa_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr,
int qp_attr_mask, struct ib_udata *udata);
enum rdma_link_layer efa_port_link_layer(struct ib_device *ibdev,
u32 port_num);
struct rdma_hw_stats *efa_alloc_hw_port_stats(struct ib_device *ibdev, u32 port_num);
struct rdma_hw_stats *efa_alloc_hw_device_stats(struct ib_device *ibdev);
int efa_get_hw_stats(struct ib_device *ibdev, struct rdma_hw_stats *stats,
u32 port_num, int index);
#endif /* _EFA_H_ */
|
