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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 u32 irqn;
31 cpumask_t affinity_hint_mask;
32 char name[EFA_IRQNAME_SIZE];
33};
34
35
36struct efa_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 atomic64_t mmap_err;
44 atomic64_t keep_alive_rcvd;
45};
46
47struct efa_dev {
48 struct ib_device ibdev;
49 struct efa_com_dev edev;
50 struct pci_dev *pdev;
51 struct efa_com_get_device_attr_result dev_attr;
52
53 u64 reg_bar_addr;
54 u64 reg_bar_len;
55 u64 mem_bar_addr;
56 u64 mem_bar_len;
57 u64 db_bar_addr;
58 u64 db_bar_len;
59
60 int admin_msix_vector_idx;
61 struct efa_irq admin_irq;
62
63 struct efa_stats stats;
64};
65
66struct efa_ucontext {
67 struct ib_ucontext ibucontext;
68 u16 uarn;
69};
70
71struct efa_pd {
72 struct ib_pd ibpd;
73 u16 pdn;
74};
75
76struct efa_mr {
77 struct ib_mr ibmr;
78 struct ib_umem *umem;
79};
80
81struct efa_cq {
82 struct ib_cq ibcq;
83 struct efa_ucontext *ucontext;
84 dma_addr_t dma_addr;
85 void *cpu_addr;
86 struct rdma_user_mmap_entry *mmap_entry;
87 size_t size;
88 u16 cq_idx;
89};
90
91struct efa_qp {
92 struct ib_qp ibqp;
93 dma_addr_t rq_dma_addr;
94 void *rq_cpu_addr;
95 size_t rq_size;
96 enum ib_qp_state state;
97
98
99 struct rdma_user_mmap_entry *sq_db_mmap_entry;
100 struct rdma_user_mmap_entry *llq_desc_mmap_entry;
101 struct rdma_user_mmap_entry *rq_db_mmap_entry;
102 struct rdma_user_mmap_entry *rq_mmap_entry;
103
104 u32 qp_handle;
105 u32 max_send_wr;
106 u32 max_recv_wr;
107 u32 max_send_sge;
108 u32 max_recv_sge;
109 u32 max_inline_data;
110};
111
112struct efa_ah {
113 struct ib_ah ibah;
114 u16 ah;
115
116 u8 id[EFA_GID_SIZE];
117};
118
119int efa_query_device(struct ib_device *ibdev,
120 struct ib_device_attr *props,
121 struct ib_udata *udata);
122int efa_query_port(struct ib_device *ibdev, u32 port,
123 struct ib_port_attr *props);
124int efa_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr,
125 int qp_attr_mask,
126 struct ib_qp_init_attr *qp_init_attr);
127int efa_query_gid(struct ib_device *ibdev, u32 port, int index,
128 union ib_gid *gid);
129int efa_query_pkey(struct ib_device *ibdev, u32 port, u16 index,
130 u16 *pkey);
131int efa_alloc_pd(struct ib_pd *ibpd, struct ib_udata *udata);
132int efa_dealloc_pd(struct ib_pd *ibpd, struct ib_udata *udata);
133int efa_destroy_qp(struct ib_qp *ibqp, struct ib_udata *udata);
134int efa_create_qp(struct ib_qp *ibqp, struct ib_qp_init_attr *init_attr,
135 struct ib_udata *udata);
136int efa_destroy_cq(struct ib_cq *ibcq, struct ib_udata *udata);
137int efa_create_cq(struct ib_cq *ibcq, const struct ib_cq_init_attr *attr,
138 struct ib_udata *udata);
139struct ib_mr *efa_reg_mr(struct ib_pd *ibpd, u64 start, u64 length,
140 u64 virt_addr, int access_flags,
141 struct ib_udata *udata);
142int efa_dereg_mr(struct ib_mr *ibmr, struct ib_udata *udata);
143int efa_get_port_immutable(struct ib_device *ibdev, u32 port_num,
144 struct ib_port_immutable *immutable);
145int efa_alloc_ucontext(struct ib_ucontext *ibucontext, struct ib_udata *udata);
146void efa_dealloc_ucontext(struct ib_ucontext *ibucontext);
147int efa_mmap(struct ib_ucontext *ibucontext,
148 struct vm_area_struct *vma);
149void efa_mmap_free(struct rdma_user_mmap_entry *rdma_entry);
150int efa_create_ah(struct ib_ah *ibah,
151 struct rdma_ah_init_attr *init_attr,
152 struct ib_udata *udata);
153int efa_destroy_ah(struct ib_ah *ibah, u32 flags);
154int efa_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr,
155 int qp_attr_mask, struct ib_udata *udata);
156enum rdma_link_layer efa_port_link_layer(struct ib_device *ibdev,
157 u32 port_num);
158struct rdma_hw_stats *efa_alloc_hw_port_stats(struct ib_device *ibdev, u32 port_num);
159struct rdma_hw_stats *efa_alloc_hw_device_stats(struct ib_device *ibdev);
160int efa_get_hw_stats(struct ib_device *ibdev, struct rdma_hw_stats *stats,
161 u32 port_num, int index);
162
163#endif
164
