1/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
2/* Copyright (c) 2015 - 2021 Intel Corporation */
3#ifndef IRDMA_VERBS_H
4#define IRDMA_VERBS_H
5
6#define IRDMA_MAX_SAVED_PHY_PGADDR 4
7#define IRDMA_FLUSH_DELAY_MS 20
8
9#define IRDMA_PKEY_TBL_SZ 1
10#define IRDMA_DEFAULT_PKEY 0xFFFF
11#define IRDMA_SHADOW_PGCNT 1
12
13struct irdma_ucontext {
14 struct ib_ucontext ibucontext;
15 struct irdma_device *iwdev;
16 struct rdma_user_mmap_entry *db_mmap_entry;
17 struct list_head cq_reg_mem_list;
18 spinlock_t cq_reg_mem_list_lock; /* protect CQ memory list */
19 struct list_head qp_reg_mem_list;
20 spinlock_t qp_reg_mem_list_lock; /* protect QP memory list */
21 struct list_head srq_reg_mem_list;
22 spinlock_t srq_reg_mem_list_lock; /* protect SRQ memory list */
23 int abi_ver;
24 u8 legacy_mode : 1;
25 u8 use_raw_attrs : 1;
26};
27
28struct irdma_pd {
29 struct ib_pd ibpd;
30 struct irdma_sc_pd sc_pd;
31};
32
33union irdma_sockaddr {
34 struct sockaddr_in saddr_in;
35 struct sockaddr_in6 saddr_in6;
36};
37
38struct irdma_av {
39 u8 macaddr[16];
40 struct rdma_ah_attr attrs;
41 union irdma_sockaddr sgid_addr;
42 union irdma_sockaddr dgid_addr;
43 u8 net_type;
44};
45
46struct irdma_ah {
47 struct ib_ah ibah;
48 struct irdma_sc_ah sc_ah;
49 struct irdma_pd *pd;
50 struct irdma_av av;
51 u8 sgid_index;
52 union ib_gid dgid;
53 struct hlist_node list;
54 refcount_t refcnt;
55 struct irdma_ah *parent_ah; /* AH from cached list */
56};
57
58struct irdma_hmc_pble {
59 union {
60 u32 idx;
61 dma_addr_t addr;
62 };
63};
64
65struct irdma_cq_mr {
66 struct irdma_hmc_pble cq_pbl;
67 dma_addr_t shadow;
68 bool split;
69};
70
71struct irdma_srq_mr {
72 struct irdma_hmc_pble srq_pbl;
73 dma_addr_t shadow;
74};
75
76struct irdma_qp_mr {
77 struct irdma_hmc_pble sq_pbl;
78 struct irdma_hmc_pble rq_pbl;
79 dma_addr_t shadow;
80 dma_addr_t rq_pa;
81 struct page *sq_page;
82};
83
84struct irdma_cq_buf {
85 struct irdma_dma_mem kmem_buf;
86 struct irdma_cq_uk cq_uk;
87 struct irdma_hw *hw;
88 struct list_head list;
89 struct work_struct work;
90};
91
92struct irdma_pbl {
93 struct list_head list;
94 union {
95 struct irdma_qp_mr qp_mr;
96 struct irdma_cq_mr cq_mr;
97 struct irdma_srq_mr srq_mr;
98 };
99
100 bool pbl_allocated:1;
101 bool on_list:1;
102 u64 user_base;
103 struct irdma_pble_alloc pble_alloc;
104 struct irdma_mr *iwmr;
105};
106
107struct irdma_mr {
108 union {
109 struct ib_mr ibmr;
110 struct ib_mw ibmw;
111 };
112 struct ib_umem *region;
113 int access;
114 bool is_hwreg:1;
115 bool dma_mr:1;
116 u16 type;
117 u32 page_cnt;
118 u64 page_size;
119 u32 npages;
120 u32 stag;
121 u64 len;
122 u64 pgaddrmem[IRDMA_MAX_SAVED_PHY_PGADDR];
123 struct irdma_pbl iwpbl;
124};
125
126struct irdma_srq {
127 struct ib_srq ibsrq;
128 struct irdma_sc_srq sc_srq __aligned(64);
129 struct irdma_dma_mem kmem;
130 u64 *srq_wrid_mem;
131 refcount_t refcnt;
132 spinlock_t lock; /* for poll srq */
133 struct irdma_pbl *iwpbl;
134 struct irdma_sge *sg_list;
135 u16 srq_head;
136 u32 srq_num;
137 u32 max_wr;
138 bool user_mode:1;
139};
140
141struct irdma_cq {
142 struct ib_cq ibcq;
143 struct irdma_sc_cq sc_cq;
144 u32 cq_num;
145 bool user_mode;
146 atomic_t armed;
147 enum irdma_cmpl_notify last_notify;
148 struct irdma_dma_mem kmem;
149 struct irdma_dma_mem kmem_shadow;
150 struct completion free_cq;
151 refcount_t refcnt;
152 spinlock_t lock; /* for poll cq */
153 struct list_head resize_list;
154 struct irdma_cq_poll_info cur_cqe;
155 struct list_head cmpl_generated;
156};
157
158struct irdma_cmpl_gen {
159 struct list_head list;
160 struct irdma_cq_poll_info cpi;
161};
162
163struct disconn_work {
164 struct work_struct work;
165 struct irdma_qp *iwqp;
166};
167
168struct iw_cm_id;
169
170struct irdma_qp_kmode {
171 struct irdma_dma_mem dma_mem;
172 struct irdma_sq_uk_wr_trk_info *sq_wrid_mem;
173 u64 *rq_wrid_mem;
174};
175
176struct irdma_qp {
177 struct ib_qp ibqp;
178 struct irdma_sc_qp sc_qp;
179 struct irdma_device *iwdev;
180 struct irdma_cq *iwscq;
181 struct irdma_cq *iwrcq;
182 struct irdma_pd *iwpd;
183 struct rdma_user_mmap_entry *push_wqe_mmap_entry;
184 struct rdma_user_mmap_entry *push_db_mmap_entry;
185 struct irdma_qp_host_ctx_info ctx_info;
186 union {
187 struct irdma_iwarp_offload_info iwarp_info;
188 struct irdma_roce_offload_info roce_info;
189 };
190
191 union {
192 struct irdma_tcp_offload_info tcp_info;
193 struct irdma_udp_offload_info udp_info;
194 };
195
196 struct irdma_ah roce_ah;
197 struct list_head teardown_entry;
198 refcount_t refcnt;
199 struct iw_cm_id *cm_id;
200 struct irdma_cm_node *cm_node;
201 struct delayed_work dwork_flush;
202 struct ib_mr *lsmm_mr;
203 atomic_t hw_mod_qp_pend;
204 enum ib_qp_state ibqp_state;
205 u32 qp_mem_size;
206 u32 last_aeq;
207 int max_send_wr;
208 int max_recv_wr;
209 atomic_t close_timer_started;
210 spinlock_t lock; /* serialize posting WRs to SQ/RQ */
211 struct irdma_qp_context *iwqp_context;
212 void *pbl_vbase;
213 dma_addr_t pbl_pbase;
214 struct page *page;
215 u8 active_conn : 1;
216 u8 user_mode : 1;
217 u8 hte_added : 1;
218 u8 flush_issued : 1;
219 u8 sig_all : 1;
220 u8 pau_mode : 1;
221 u8 suspend_pending : 1;
222 u8 rsvd : 1;
223 u8 iwarp_state;
224 u16 term_sq_flush_code;
225 u16 term_rq_flush_code;
226 u8 hw_iwarp_state;
227 u8 hw_tcp_state;
228 struct irdma_qp_kmode kqp;
229 struct irdma_dma_mem host_ctx;
230 struct timer_list terminate_timer;
231 struct irdma_pbl *iwpbl;
232 struct irdma_dma_mem q2_ctx_mem;
233 struct irdma_dma_mem ietf_mem;
234 struct completion free_qp;
235 wait_queue_head_t waitq;
236 wait_queue_head_t mod_qp_waitq;
237 u8 rts_ae_rcvd;
238};
239
240enum irdma_mmap_flag {
241 IRDMA_MMAP_IO_NC,
242 IRDMA_MMAP_IO_WC,
243};
244
245struct irdma_user_mmap_entry {
246 struct rdma_user_mmap_entry rdma_entry;
247 u64 bar_offset;
248 u8 mmap_flag;
249};
250
251static inline u16 irdma_fw_major_ver(struct irdma_sc_dev *dev)
252{
253 return (u16)FIELD_GET(IRDMA_FW_VER_MAJOR, dev->feature_info[IRDMA_FEATURE_FW_INFO]);
254}
255
256static inline u16 irdma_fw_minor_ver(struct irdma_sc_dev *dev)
257{
258 return (u16)FIELD_GET(IRDMA_FW_VER_MINOR, dev->feature_info[IRDMA_FEATURE_FW_INFO]);
259}
260
261static inline void set_ib_wc_op_sq(struct irdma_cq_poll_info *cq_poll_info,
262 struct ib_wc *entry)
263{
264 switch (cq_poll_info->op_type) {
265 case IRDMA_OP_TYPE_RDMA_WRITE:
266 case IRDMA_OP_TYPE_RDMA_WRITE_SOL:
267 entry->opcode = IB_WC_RDMA_WRITE;
268 break;
269 case IRDMA_OP_TYPE_RDMA_READ_INV_STAG:
270 case IRDMA_OP_TYPE_RDMA_READ:
271 entry->opcode = IB_WC_RDMA_READ;
272 break;
273 case IRDMA_OP_TYPE_SEND_SOL:
274 case IRDMA_OP_TYPE_SEND_SOL_INV:
275 case IRDMA_OP_TYPE_SEND_INV:
276 case IRDMA_OP_TYPE_SEND:
277 entry->opcode = IB_WC_SEND;
278 break;
279 case IRDMA_OP_TYPE_FAST_REG_NSMR:
280 entry->opcode = IB_WC_REG_MR;
281 break;
282 case IRDMA_OP_TYPE_ATOMIC_COMPARE_AND_SWAP:
283 entry->opcode = IB_WC_COMP_SWAP;
284 break;
285 case IRDMA_OP_TYPE_ATOMIC_FETCH_AND_ADD:
286 entry->opcode = IB_WC_FETCH_ADD;
287 break;
288 case IRDMA_OP_TYPE_INV_STAG:
289 entry->opcode = IB_WC_LOCAL_INV;
290 break;
291 default:
292 entry->status = IB_WC_GENERAL_ERR;
293 }
294}
295
296static inline void set_ib_wc_op_rq_gen_3(struct irdma_cq_poll_info *info,
297 struct ib_wc *entry)
298{
299 switch (info->op_type) {
300 case IRDMA_OP_TYPE_RDMA_WRITE:
301 case IRDMA_OP_TYPE_RDMA_WRITE_SOL:
302 entry->opcode = IB_WC_RECV_RDMA_WITH_IMM;
303 break;
304 default:
305 entry->opcode = IB_WC_RECV;
306 }
307}
308
309static inline void set_ib_wc_op_rq(struct irdma_cq_poll_info *cq_poll_info,
310 struct ib_wc *entry, bool send_imm_support)
311{
312 /**
313 * iWARP does not support sendImm, so the presence of Imm data
314 * must be WriteImm.
315 */
316 if (!send_imm_support) {
317 entry->opcode = cq_poll_info->imm_valid ?
318 IB_WC_RECV_RDMA_WITH_IMM :
319 IB_WC_RECV;
320 return;
321 }
322
323 switch (cq_poll_info->op_type) {
324 case IB_OPCODE_RDMA_WRITE_ONLY_WITH_IMMEDIATE:
325 case IB_OPCODE_RDMA_WRITE_LAST_WITH_IMMEDIATE:
326 entry->opcode = IB_WC_RECV_RDMA_WITH_IMM;
327 break;
328 default:
329 entry->opcode = IB_WC_RECV;
330 }
331}
332
333void irdma_mcast_mac(u32 *ip_addr, u8 *mac, bool ipv4);
334int irdma_ib_register_device(struct irdma_device *iwdev);
335void irdma_ib_unregister_device(struct irdma_device *iwdev);
336void irdma_ib_dealloc_device(struct ib_device *ibdev);
337void irdma_ib_qp_event(struct irdma_qp *iwqp, enum irdma_qp_event_type event);
338void irdma_generate_flush_completions(struct irdma_qp *iwqp);
339void irdma_remove_cmpls_list(struct irdma_cq *iwcq);
340int irdma_generated_cmpls(struct irdma_cq *iwcq, struct irdma_cq_poll_info *cq_poll_info);
341#endif /* IRDMA_VERBS_H */
342

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