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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
27 struct 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
36 struct 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
46 struct efa_stats {
47 struct efa_sw_stats sw_stats;
48 atomic64_t keep_alive_rcvd;
49 };
50
51 struct 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 u8 addr[EFA_GID_SIZE];
64 u32 mtu;
65
66 int admin_msix_vector_idx;
67 struct efa_irq admin_irq;
68
69 struct efa_stats stats;
70 };
71
72 struct efa_ucontext {
73 struct ib_ucontext ibucontext;
74 struct xarray mmap_xa;
75 u32 mmap_xa_page;
76 u16 uarn;
77 };
78
79 struct efa_pd {
80 struct ib_pd ibpd;
81 u16 pdn;
82 };
83
84 struct efa_mr {
85 struct ib_mr ibmr;
86 struct ib_umem *umem;
87 };
88
89 struct efa_cq {
90 struct ib_cq ibcq;
91 struct efa_ucontext *ucontext;
92 dma_addr_t dma_addr;
93 void *cpu_addr;
94 size_t size;
95 u16 cq_idx;
96 };
97
98 struct efa_qp {
99 struct ib_qp ibqp;
100 dma_addr_t rq_dma_addr;
101 void *rq_cpu_addr;
102 size_t rq_size;
103 enum ib_qp_state state;
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
112 struct efa_ah {
113 struct ib_ah ibah;
114 u16 ah;
115
116 u8 id[EFA_GID_SIZE];
117 };
118
119 int efa_query_device(struct ib_device *ibdev,
120 struct ib_device_attr *props,
121 struct ib_udata *udata);
122 int efa_query_port(struct ib_device *ibdev, u8 port,
123 struct ib_port_attr *props);
124 int 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);
127 int efa_query_gid(struct ib_device *ibdev, u8 port, int index,
128 union ib_gid *gid);
129 int efa_query_pkey(struct ib_device *ibdev, u8 port, u16 index,
130 u16 *pkey);
131 int efa_alloc_pd(struct ib_pd *ibpd, struct ib_udata *udata);
132 void efa_dealloc_pd(struct ib_pd *ibpd, struct ib_udata *udata);
133 int efa_destroy_qp(struct ib_qp *ibqp, struct ib_udata *udata);
134 struct ib_qp *efa_create_qp(struct ib_pd *ibpd,
135 struct ib_qp_init_attr *init_attr,
136 struct ib_udata *udata);
137 void efa_destroy_cq(struct ib_cq *ibcq, struct ib_udata *udata);
138 int efa_create_cq(struct ib_cq *ibcq, const struct ib_cq_init_attr *attr,
139 struct ib_udata *udata);
140 struct ib_mr *efa_reg_mr(struct ib_pd *ibpd, u64 start, u64 length,
141 u64 virt_addr, int access_flags,
142 struct ib_udata *udata);
143 int efa_dereg_mr(struct ib_mr *ibmr, struct ib_udata *udata);
144 int efa_get_port_immutable(struct ib_device *ibdev, u8 port_num,
145 struct ib_port_immutable *immutable);
146 int efa_alloc_ucontext(struct ib_ucontext *ibucontext, struct ib_udata *udata);
147 void efa_dealloc_ucontext(struct ib_ucontext *ibucontext);
148 int efa_mmap(struct ib_ucontext *ibucontext,
149 struct vm_area_struct *vma);
150 int efa_create_ah(struct ib_ah *ibah,
151 struct rdma_ah_attr *ah_attr,
152 u32 flags,
153 struct ib_udata *udata);
154 void efa_destroy_ah(struct ib_ah *ibah, u32 flags);
155 int efa_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr,
156 int qp_attr_mask, struct ib_udata *udata);
157 enum rdma_link_layer efa_port_link_layer(struct ib_device *ibdev,
158 u8 port_num);
159 struct rdma_hw_stats *efa_alloc_hw_stats(struct ib_device *ibdev, u8 port_num);
160 int efa_get_hw_stats(struct ib_device *ibdev, struct rdma_hw_stats *stats,
161 u8 port_num, int index);
162
163 #endif