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6#ifndef _EFA_H_
7#define _EFA_H_
8
9#include <linux/bitops.h>
10#include <linux/interrupt.h>
11#include <linux/pci.h>
12
13#include <rdma/efa-abi.h>
14#include <rdma/ib_verbs.h>
15
16#include "efa_com_cmd.h"
17
18#define DRV_MODULE_NAME "efa"
19#define DEVICE_NAME "Elastic Fabric Adapter (EFA)"
20
21#define EFA_IRQNAME_SIZE 40
22
23
24#define EFA_NUM_MSIX_VEC 1
25#define EFA_MGMNT_MSIX_VEC_IDX 0
26
27struct efa_irq {
28 irq_handler_t handler;
29 void *data;
30 int cpu;
31 u32 vector;
32 cpumask_t affinity_hint_mask;
33 char name[EFA_IRQNAME_SIZE];
34};
35
36struct efa_sw_stats {
37 atomic64_t alloc_pd_err;
38 atomic64_t create_qp_err;
39 atomic64_t create_cq_err;
40 atomic64_t reg_mr_err;
41 atomic64_t alloc_ucontext_err;
42 atomic64_t create_ah_err;
43};
44
45
46struct efa_stats {
47 struct efa_sw_stats sw_stats;
48 atomic64_t keep_alive_rcvd;
49};
50
51struct efa_dev {
52 struct ib_device ibdev;
53 struct efa_com_dev edev;
54 struct pci_dev *pdev;
55 struct efa_com_get_device_attr_result dev_attr;
56
57 u64 reg_bar_addr;
58 u64 reg_bar_len;
59 u64 mem_bar_addr;
60 u64 mem_bar_len;
61 u64 db_bar_addr;
62 u64 db_bar_len;
63
64 int admin_msix_vector_idx;
65 struct efa_irq admin_irq;
66
67 struct efa_stats stats;
68};
69
70struct efa_ucontext {
71 struct ib_ucontext ibucontext;
72 u16 uarn;
73};
74
75struct efa_pd {
76 struct ib_pd ibpd;
77 u16 pdn;
78};
79
80struct efa_mr {
81 struct ib_mr ibmr;
82 struct ib_umem *umem;
83};
84
85struct efa_cq {
86 struct ib_cq ibcq;
87 struct efa_ucontext *ucontext;
88 dma_addr_t dma_addr;
89 void *cpu_addr;
90 struct rdma_user_mmap_entry *mmap_entry;
91 size_t size;
92 u16 cq_idx;
93};
94
95struct efa_qp {
96 struct ib_qp ibqp;
97 dma_addr_t rq_dma_addr;
98 void *rq_cpu_addr;
99 size_t rq_size;
100 enum ib_qp_state state;
101
102
103 struct rdma_user_mmap_entry *sq_db_mmap_entry;
104 struct rdma_user_mmap_entry *llq_desc_mmap_entry;
105 struct rdma_user_mmap_entry *rq_db_mmap_entry;
106 struct rdma_user_mmap_entry *rq_mmap_entry;
107
108 u32 qp_handle;
109 u32 max_send_wr;
110 u32 max_recv_wr;
111 u32 max_send_sge;
112 u32 max_recv_sge;
113 u32 max_inline_data;
114};
115
116struct efa_ah {
117 struct ib_ah ibah;
118 u16 ah;
119
120 u8 id[EFA_GID_SIZE];
121};
122
123int efa_query_device(struct ib_device *ibdev,
124 struct ib_device_attr *props,
125 struct ib_udata *udata);
126int efa_query_port(struct ib_device *ibdev, u8 port,
127 struct ib_port_attr *props);
128int efa_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr,
129 int qp_attr_mask,
130 struct ib_qp_init_attr *qp_init_attr);
131int efa_query_gid(struct ib_device *ibdev, u8 port, int index,
132 union ib_gid *gid);
133int efa_query_pkey(struct ib_device *ibdev, u8 port, u16 index,
134 u16 *pkey);
135int efa_alloc_pd(struct ib_pd *ibpd, struct ib_udata *udata);
136void efa_dealloc_pd(struct ib_pd *ibpd, struct ib_udata *udata);
137int efa_destroy_qp(struct ib_qp *ibqp, struct ib_udata *udata);
138struct ib_qp *efa_create_qp(struct ib_pd *ibpd,
139 struct ib_qp_init_attr *init_attr,
140 struct ib_udata *udata);
141void efa_destroy_cq(struct ib_cq *ibcq, struct ib_udata *udata);
142int efa_create_cq(struct ib_cq *ibcq, const struct ib_cq_init_attr *attr,
143 struct ib_udata *udata);
144struct ib_mr *efa_reg_mr(struct ib_pd *ibpd, u64 start, u64 length,
145 u64 virt_addr, int access_flags,
146 struct ib_udata *udata);
147int efa_dereg_mr(struct ib_mr *ibmr, struct ib_udata *udata);
148int efa_get_port_immutable(struct ib_device *ibdev, u8 port_num,
149 struct ib_port_immutable *immutable);
150int efa_alloc_ucontext(struct ib_ucontext *ibucontext, struct ib_udata *udata);
151void efa_dealloc_ucontext(struct ib_ucontext *ibucontext);
152int efa_mmap(struct ib_ucontext *ibucontext,
153 struct vm_area_struct *vma);
154void efa_mmap_free(struct rdma_user_mmap_entry *rdma_entry);
155int efa_create_ah(struct ib_ah *ibah,
156 struct rdma_ah_attr *ah_attr,
157 u32 flags,
158 struct ib_udata *udata);
159void efa_destroy_ah(struct ib_ah *ibah, u32 flags);
160int efa_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr,
161 int qp_attr_mask, struct ib_udata *udata);
162enum rdma_link_layer efa_port_link_layer(struct ib_device *ibdev,
163 u8 port_num);
164struct rdma_hw_stats *efa_alloc_hw_stats(struct ib_device *ibdev, u8 port_num);
165int efa_get_hw_stats(struct ib_device *ibdev, struct rdma_hw_stats *stats,
166 u8 port_num, int index);
167
168#endif
169
