This source file includes following definitions.
- get_sqe_pg
- get_sqe_idx
- get_psne_pg
- get_psne_idx
- bnxt_qplib_queue_full
- bnxt_qplib_ring_nq_db64
- bnxt_qplib_ring_nq_db_rearm
- bnxt_qplib_ring_nq_db
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39 #ifndef __BNXT_QPLIB_FP_H__
40 #define __BNXT_QPLIB_FP_H__
41
42 struct bnxt_qplib_srq {
43 struct bnxt_qplib_pd *pd;
44 struct bnxt_qplib_dpi *dpi;
45 void __iomem *dbr_base;
46 u64 srq_handle;
47 u32 id;
48 u32 max_wqe;
49 u32 max_sge;
50 u32 threshold;
51 bool arm_req;
52 struct bnxt_qplib_cq *cq;
53 struct bnxt_qplib_hwq hwq;
54 struct bnxt_qplib_swq *swq;
55 int start_idx;
56 int last_idx;
57 struct bnxt_qplib_sg_info sg_info;
58 u16 eventq_hw_ring_id;
59 spinlock_t lock;
60 };
61
62 struct bnxt_qplib_sge {
63 u64 addr;
64 u32 lkey;
65 u32 size;
66 };
67
68 #define BNXT_QPLIB_MAX_SQE_ENTRY_SIZE sizeof(struct sq_send)
69
70 #define SQE_CNT_PER_PG (PAGE_SIZE / BNXT_QPLIB_MAX_SQE_ENTRY_SIZE)
71 #define SQE_MAX_IDX_PER_PG (SQE_CNT_PER_PG - 1)
72
73 static inline u32 get_sqe_pg(u32 val)
74 {
75 return ((val & ~SQE_MAX_IDX_PER_PG) / SQE_CNT_PER_PG);
76 }
77
78 static inline u32 get_sqe_idx(u32 val)
79 {
80 return (val & SQE_MAX_IDX_PER_PG);
81 }
82
83 #define BNXT_QPLIB_MAX_PSNE_ENTRY_SIZE sizeof(struct sq_psn_search)
84
85 #define PSNE_CNT_PER_PG (PAGE_SIZE / BNXT_QPLIB_MAX_PSNE_ENTRY_SIZE)
86 #define PSNE_MAX_IDX_PER_PG (PSNE_CNT_PER_PG - 1)
87
88 static inline u32 get_psne_pg(u32 val)
89 {
90 return ((val & ~PSNE_MAX_IDX_PER_PG) / PSNE_CNT_PER_PG);
91 }
92
93 static inline u32 get_psne_idx(u32 val)
94 {
95 return (val & PSNE_MAX_IDX_PER_PG);
96 }
97
98 #define BNXT_QPLIB_QP_MAX_SGL 6
99
100 struct bnxt_qplib_swq {
101 u64 wr_id;
102 int next_idx;
103 u8 type;
104 u8 flags;
105 u32 start_psn;
106 u32 next_psn;
107 struct sq_psn_search *psn_search;
108 struct sq_psn_search_ext *psn_ext;
109 };
110
111 struct bnxt_qplib_swqe {
112
113 #define BNXT_QPLIB_FENCE_WRID 0x46454E43
114 u64 wr_id;
115 u8 reqs_type;
116 u8 type;
117 #define BNXT_QPLIB_SWQE_TYPE_SEND 0
118 #define BNXT_QPLIB_SWQE_TYPE_SEND_WITH_IMM 1
119 #define BNXT_QPLIB_SWQE_TYPE_SEND_WITH_INV 2
120 #define BNXT_QPLIB_SWQE_TYPE_RDMA_WRITE 4
121 #define BNXT_QPLIB_SWQE_TYPE_RDMA_WRITE_WITH_IMM 5
122 #define BNXT_QPLIB_SWQE_TYPE_RDMA_READ 6
123 #define BNXT_QPLIB_SWQE_TYPE_ATOMIC_CMP_AND_SWP 8
124 #define BNXT_QPLIB_SWQE_TYPE_ATOMIC_FETCH_AND_ADD 11
125 #define BNXT_QPLIB_SWQE_TYPE_LOCAL_INV 12
126 #define BNXT_QPLIB_SWQE_TYPE_FAST_REG_MR 13
127 #define BNXT_QPLIB_SWQE_TYPE_REG_MR 13
128 #define BNXT_QPLIB_SWQE_TYPE_BIND_MW 14
129 #define BNXT_QPLIB_SWQE_TYPE_RECV 128
130 #define BNXT_QPLIB_SWQE_TYPE_RECV_RDMA_IMM 129
131 u8 flags;
132 #define BNXT_QPLIB_SWQE_FLAGS_SIGNAL_COMP BIT(0)
133 #define BNXT_QPLIB_SWQE_FLAGS_RD_ATOMIC_FENCE BIT(1)
134 #define BNXT_QPLIB_SWQE_FLAGS_UC_FENCE BIT(2)
135 #define BNXT_QPLIB_SWQE_FLAGS_SOLICIT_EVENT BIT(3)
136 #define BNXT_QPLIB_SWQE_FLAGS_INLINE BIT(4)
137 struct bnxt_qplib_sge sg_list[BNXT_QPLIB_QP_MAX_SGL];
138 int num_sge;
139
140 u32 inline_len;
141 #define BNXT_QPLIB_SWQE_MAX_INLINE_LENGTH 96
142 u8 inline_data[BNXT_QPLIB_SWQE_MAX_INLINE_LENGTH];
143
144 union {
145
146 struct {
147 union {
148 __be32 imm_data;
149 u32 inv_key;
150 };
151 u32 q_key;
152 u32 dst_qp;
153 u16 avid;
154 } send;
155
156
157 struct {
158 u16 lflags;
159 u16 cfa_action;
160 u32 cfa_meta;
161 } rawqp1;
162
163
164 struct {
165 union {
166 __be32 imm_data;
167 u32 inv_key;
168 };
169 u64 remote_va;
170 u32 r_key;
171 } rdma;
172
173
174 struct {
175 u64 remote_va;
176 u32 r_key;
177 u64 swap_data;
178 u64 cmp_data;
179 } atomic;
180
181
182 struct {
183 u32 inv_l_key;
184 } local_inv;
185
186
187 struct {
188 u8 access_cntl;
189 u8 pg_sz_log;
190 bool zero_based;
191 u32 l_key;
192 u32 length;
193 u8 pbl_pg_sz_log;
194 #define BNXT_QPLIB_SWQE_PAGE_SIZE_4K 0
195 #define BNXT_QPLIB_SWQE_PAGE_SIZE_8K 1
196 #define BNXT_QPLIB_SWQE_PAGE_SIZE_64K 4
197 #define BNXT_QPLIB_SWQE_PAGE_SIZE_256K 6
198 #define BNXT_QPLIB_SWQE_PAGE_SIZE_1M 8
199 #define BNXT_QPLIB_SWQE_PAGE_SIZE_2M 9
200 #define BNXT_QPLIB_SWQE_PAGE_SIZE_4M 10
201 #define BNXT_QPLIB_SWQE_PAGE_SIZE_1G 18
202 u8 levels;
203 #define PAGE_SHIFT_4K 12
204 __le64 *pbl_ptr;
205 dma_addr_t pbl_dma_ptr;
206 u64 *page_list;
207 u16 page_list_len;
208 u64 va;
209 } frmr;
210
211
212 struct {
213 u8 access_cntl;
214 #define BNXT_QPLIB_BIND_SWQE_ACCESS_LOCAL_WRITE BIT(0)
215 #define BNXT_QPLIB_BIND_SWQE_ACCESS_REMOTE_READ BIT(1)
216 #define BNXT_QPLIB_BIND_SWQE_ACCESS_REMOTE_WRITE BIT(2)
217 #define BNXT_QPLIB_BIND_SWQE_ACCESS_REMOTE_ATOMIC BIT(3)
218 #define BNXT_QPLIB_BIND_SWQE_ACCESS_WINDOW_BIND BIT(4)
219 bool zero_based;
220 u8 mw_type;
221 u32 parent_l_key;
222 u32 r_key;
223 u64 va;
224 u32 length;
225 } bind;
226 };
227 };
228
229 #define BNXT_QPLIB_MAX_RQE_ENTRY_SIZE sizeof(struct rq_wqe)
230
231 #define RQE_CNT_PER_PG (PAGE_SIZE / BNXT_QPLIB_MAX_RQE_ENTRY_SIZE)
232 #define RQE_MAX_IDX_PER_PG (RQE_CNT_PER_PG - 1)
233 #define RQE_PG(x) (((x) & ~RQE_MAX_IDX_PER_PG) / RQE_CNT_PER_PG)
234 #define RQE_IDX(x) ((x) & RQE_MAX_IDX_PER_PG)
235
236 struct bnxt_qplib_q {
237 struct bnxt_qplib_hwq hwq;
238 struct bnxt_qplib_swq *swq;
239 struct bnxt_qplib_sg_info sg_info;
240 u32 max_wqe;
241 u16 q_full_delta;
242 u16 max_sge;
243 u32 psn;
244 bool condition;
245 bool single;
246 bool send_phantom;
247 u32 phantom_wqe_cnt;
248 u32 phantom_cqe_cnt;
249 u32 next_cq_cons;
250 bool flushed;
251 };
252
253 struct bnxt_qplib_qp {
254 struct bnxt_qplib_pd *pd;
255 struct bnxt_qplib_dpi *dpi;
256 struct bnxt_qplib_chip_ctx *cctx;
257 u64 qp_handle;
258 #define BNXT_QPLIB_QP_ID_INVALID 0xFFFFFFFF
259 u32 id;
260 u8 type;
261 u8 sig_type;
262 u32 modify_flags;
263 u8 state;
264 u8 cur_qp_state;
265 u32 max_inline_data;
266 u32 mtu;
267 u8 path_mtu;
268 bool en_sqd_async_notify;
269 u16 pkey_index;
270 u32 qkey;
271 u32 dest_qp_id;
272 u8 access;
273 u8 timeout;
274 u8 retry_cnt;
275 u8 rnr_retry;
276 u64 wqe_cnt;
277 u32 min_rnr_timer;
278 u32 max_rd_atomic;
279 u32 max_dest_rd_atomic;
280 u32 dest_qpn;
281 u8 smac[6];
282 u16 vlan_id;
283 u8 nw_type;
284 struct bnxt_qplib_ah ah;
285
286 #define BTH_PSN_MASK ((1 << 24) - 1)
287
288 struct bnxt_qplib_q sq;
289
290 struct bnxt_qplib_q rq;
291
292 struct bnxt_qplib_srq *srq;
293
294 struct bnxt_qplib_cq *scq;
295 struct bnxt_qplib_cq *rcq;
296
297 struct bnxt_qplib_hwq irrq;
298 struct bnxt_qplib_hwq orrq;
299
300 int sq_hdr_buf_size;
301 int rq_hdr_buf_size;
302
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305
306
307 #define BNXT_QPLIB_MAX_QP1_SQ_HDR_SIZE_V2 86
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312
313 #define BNXT_QPLIB_MAX_QP1_RQ_ETH_HDR_SIZE 14
314 #define BNXT_QPLIB_MAX_QP1_RQ_HDR_SIZE_V2 512
315 #define BNXT_QPLIB_MAX_GRH_HDR_SIZE_IPV4 20
316 #define BNXT_QPLIB_MAX_GRH_HDR_SIZE_IPV6 40
317 #define BNXT_QPLIB_MAX_QP1_RQ_BDETH_HDR_SIZE 20
318 void *sq_hdr_buf;
319 dma_addr_t sq_hdr_buf_map;
320 void *rq_hdr_buf;
321 dma_addr_t rq_hdr_buf_map;
322 struct list_head sq_flush;
323 struct list_head rq_flush;
324 };
325
326 #define BNXT_QPLIB_MAX_CQE_ENTRY_SIZE sizeof(struct cq_base)
327
328 #define CQE_CNT_PER_PG (PAGE_SIZE / BNXT_QPLIB_MAX_CQE_ENTRY_SIZE)
329 #define CQE_MAX_IDX_PER_PG (CQE_CNT_PER_PG - 1)
330 #define CQE_PG(x) (((x) & ~CQE_MAX_IDX_PER_PG) / CQE_CNT_PER_PG)
331 #define CQE_IDX(x) ((x) & CQE_MAX_IDX_PER_PG)
332
333 #define ROCE_CQE_CMP_V 0
334 #define CQE_CMP_VALID(hdr, raw_cons, cp_bit) \
335 (!!((hdr)->cqe_type_toggle & CQ_BASE_TOGGLE) == \
336 !((raw_cons) & (cp_bit)))
337
338 static inline bool bnxt_qplib_queue_full(struct bnxt_qplib_q *qplib_q)
339 {
340 return HWQ_CMP((qplib_q->hwq.prod + qplib_q->q_full_delta),
341 &qplib_q->hwq) == HWQ_CMP(qplib_q->hwq.cons,
342 &qplib_q->hwq);
343 }
344
345 struct bnxt_qplib_cqe {
346 u8 status;
347 u8 type;
348 u8 opcode;
349 u32 length;
350 u16 cfa_meta;
351 u64 wr_id;
352 union {
353 __be32 immdata;
354 u32 invrkey;
355 };
356 u64 qp_handle;
357 u64 mr_handle;
358 u16 flags;
359 u8 smac[6];
360 u32 src_qp;
361 u16 raweth_qp1_flags;
362 u16 raweth_qp1_errors;
363 u16 raweth_qp1_cfa_code;
364 u32 raweth_qp1_flags2;
365 u32 raweth_qp1_metadata;
366 u8 raweth_qp1_payload_offset;
367 u16 pkey_index;
368 };
369
370 #define BNXT_QPLIB_QUEUE_START_PERIOD 0x01
371 struct bnxt_qplib_cq {
372 struct bnxt_qplib_dpi *dpi;
373 void __iomem *dbr_base;
374 u32 max_wqe;
375 u32 id;
376 u16 count;
377 u16 period;
378 struct bnxt_qplib_hwq hwq;
379 u32 cnq_hw_ring_id;
380 struct bnxt_qplib_nq *nq;
381 bool resize_in_progress;
382 struct bnxt_qplib_sg_info sg_info;
383 u64 cq_handle;
384
385 #define CQ_RESIZE_WAIT_TIME_MS 500
386 unsigned long flags;
387 #define CQ_FLAGS_RESIZE_IN_PROG 1
388 wait_queue_head_t waitq;
389 struct list_head sqf_head, rqf_head;
390 atomic_t arm_state;
391 spinlock_t compl_lock;
392
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401
402
403 spinlock_t flush_lock;
404 };
405
406 #define BNXT_QPLIB_MAX_IRRQE_ENTRY_SIZE sizeof(struct xrrq_irrq)
407 #define BNXT_QPLIB_MAX_ORRQE_ENTRY_SIZE sizeof(struct xrrq_orrq)
408 #define IRD_LIMIT_TO_IRRQ_SLOTS(x) (2 * (x) + 2)
409 #define IRRQ_SLOTS_TO_IRD_LIMIT(s) (((s) >> 1) - 1)
410 #define ORD_LIMIT_TO_ORRQ_SLOTS(x) ((x) + 1)
411 #define ORRQ_SLOTS_TO_ORD_LIMIT(s) ((s) - 1)
412
413 #define BNXT_QPLIB_MAX_NQE_ENTRY_SIZE sizeof(struct nq_base)
414
415 #define NQE_CNT_PER_PG (PAGE_SIZE / BNXT_QPLIB_MAX_NQE_ENTRY_SIZE)
416 #define NQE_MAX_IDX_PER_PG (NQE_CNT_PER_PG - 1)
417 #define NQE_PG(x) (((x) & ~NQE_MAX_IDX_PER_PG) / NQE_CNT_PER_PG)
418 #define NQE_IDX(x) ((x) & NQE_MAX_IDX_PER_PG)
419
420 #define NQE_CMP_VALID(hdr, raw_cons, cp_bit) \
421 (!!(le32_to_cpu((hdr)->info63_v[0]) & NQ_BASE_V) == \
422 !((raw_cons) & (cp_bit)))
423
424 #define BNXT_QPLIB_NQE_MAX_CNT (128 * 1024)
425
426 #define NQ_CONS_PCI_BAR_REGION 2
427 #define NQ_DB_KEY_CP (0x2 << CMPL_DOORBELL_KEY_SFT)
428 #define NQ_DB_IDX_VALID CMPL_DOORBELL_IDX_VALID
429 #define NQ_DB_IRQ_DIS CMPL_DOORBELL_MASK
430 #define NQ_DB_CP_FLAGS_REARM (NQ_DB_KEY_CP | \
431 NQ_DB_IDX_VALID)
432 #define NQ_DB_CP_FLAGS (NQ_DB_KEY_CP | \
433 NQ_DB_IDX_VALID | \
434 NQ_DB_IRQ_DIS)
435
436 static inline void bnxt_qplib_ring_nq_db64(void __iomem *db, u32 index,
437 u32 xid, bool arm)
438 {
439 u64 val;
440
441 val = xid & DBC_DBC_XID_MASK;
442 val |= DBC_DBC_PATH_ROCE;
443 val |= arm ? DBC_DBC_TYPE_NQ_ARM : DBC_DBC_TYPE_NQ;
444 val <<= 32;
445 val |= index & DBC_DBC_INDEX_MASK;
446 writeq(val, db);
447 }
448
449 static inline void bnxt_qplib_ring_nq_db_rearm(void __iomem *db, u32 raw_cons,
450 u32 max_elements, u32 xid,
451 bool gen_p5)
452 {
453 u32 index = raw_cons & (max_elements - 1);
454
455 if (gen_p5)
456 bnxt_qplib_ring_nq_db64(db, index, xid, true);
457 else
458 writel(NQ_DB_CP_FLAGS_REARM | (index & DBC_DBC32_XID_MASK), db);
459 }
460
461 static inline void bnxt_qplib_ring_nq_db(void __iomem *db, u32 raw_cons,
462 u32 max_elements, u32 xid,
463 bool gen_p5)
464 {
465 u32 index = raw_cons & (max_elements - 1);
466
467 if (gen_p5)
468 bnxt_qplib_ring_nq_db64(db, index, xid, false);
469 else
470 writel(NQ_DB_CP_FLAGS | (index & DBC_DBC32_XID_MASK), db);
471 }
472
473 struct bnxt_qplib_nq {
474 struct pci_dev *pdev;
475 struct bnxt_qplib_res *res;
476
477 int vector;
478 cpumask_t mask;
479 int budget;
480 bool requested;
481 struct tasklet_struct worker;
482 struct bnxt_qplib_hwq hwq;
483
484 u16 bar_reg;
485 u32 bar_reg_off;
486 u16 ring_id;
487 void __iomem *bar_reg_iomem;
488
489 int (*cqn_handler)(struct bnxt_qplib_nq *nq,
490 struct bnxt_qplib_cq *cq);
491 int (*srqn_handler)(struct bnxt_qplib_nq *nq,
492 struct bnxt_qplib_srq *srq,
493 u8 event);
494 struct workqueue_struct *cqn_wq;
495 char name[32];
496 };
497
498 struct bnxt_qplib_nq_work {
499 struct work_struct work;
500 struct bnxt_qplib_nq *nq;
501 struct bnxt_qplib_cq *cq;
502 };
503
504 void bnxt_qplib_nq_stop_irq(struct bnxt_qplib_nq *nq, bool kill);
505 void bnxt_qplib_disable_nq(struct bnxt_qplib_nq *nq);
506 int bnxt_qplib_nq_start_irq(struct bnxt_qplib_nq *nq, int nq_indx,
507 int msix_vector, bool need_init);
508 int bnxt_qplib_enable_nq(struct pci_dev *pdev, struct bnxt_qplib_nq *nq,
509 int nq_idx, int msix_vector, int bar_reg_offset,
510 int (*cqn_handler)(struct bnxt_qplib_nq *nq,
511 struct bnxt_qplib_cq *cq),
512 int (*srqn_handler)(struct bnxt_qplib_nq *nq,
513 struct bnxt_qplib_srq *srq,
514 u8 event));
515 int bnxt_qplib_create_srq(struct bnxt_qplib_res *res,
516 struct bnxt_qplib_srq *srq);
517 int bnxt_qplib_modify_srq(struct bnxt_qplib_res *res,
518 struct bnxt_qplib_srq *srq);
519 int bnxt_qplib_query_srq(struct bnxt_qplib_res *res,
520 struct bnxt_qplib_srq *srq);
521 void bnxt_qplib_destroy_srq(struct bnxt_qplib_res *res,
522 struct bnxt_qplib_srq *srq);
523 int bnxt_qplib_post_srq_recv(struct bnxt_qplib_srq *srq,
524 struct bnxt_qplib_swqe *wqe);
525 int bnxt_qplib_create_qp1(struct bnxt_qplib_res *res, struct bnxt_qplib_qp *qp);
526 int bnxt_qplib_create_qp(struct bnxt_qplib_res *res, struct bnxt_qplib_qp *qp);
527 int bnxt_qplib_modify_qp(struct bnxt_qplib_res *res, struct bnxt_qplib_qp *qp);
528 int bnxt_qplib_query_qp(struct bnxt_qplib_res *res, struct bnxt_qplib_qp *qp);
529 int bnxt_qplib_destroy_qp(struct bnxt_qplib_res *res, struct bnxt_qplib_qp *qp);
530 void bnxt_qplib_clean_qp(struct bnxt_qplib_qp *qp);
531 void bnxt_qplib_free_qp_res(struct bnxt_qplib_res *res,
532 struct bnxt_qplib_qp *qp);
533 void *bnxt_qplib_get_qp1_sq_buf(struct bnxt_qplib_qp *qp,
534 struct bnxt_qplib_sge *sge);
535 void *bnxt_qplib_get_qp1_rq_buf(struct bnxt_qplib_qp *qp,
536 struct bnxt_qplib_sge *sge);
537 u32 bnxt_qplib_get_rq_prod_index(struct bnxt_qplib_qp *qp);
538 dma_addr_t bnxt_qplib_get_qp_buf_from_index(struct bnxt_qplib_qp *qp,
539 u32 index);
540 void bnxt_qplib_post_send_db(struct bnxt_qplib_qp *qp);
541 int bnxt_qplib_post_send(struct bnxt_qplib_qp *qp,
542 struct bnxt_qplib_swqe *wqe);
543 void bnxt_qplib_post_recv_db(struct bnxt_qplib_qp *qp);
544 int bnxt_qplib_post_recv(struct bnxt_qplib_qp *qp,
545 struct bnxt_qplib_swqe *wqe);
546 int bnxt_qplib_create_cq(struct bnxt_qplib_res *res, struct bnxt_qplib_cq *cq);
547 int bnxt_qplib_destroy_cq(struct bnxt_qplib_res *res, struct bnxt_qplib_cq *cq);
548 int bnxt_qplib_poll_cq(struct bnxt_qplib_cq *cq, struct bnxt_qplib_cqe *cqe,
549 int num, struct bnxt_qplib_qp **qp);
550 bool bnxt_qplib_is_cq_empty(struct bnxt_qplib_cq *cq);
551 void bnxt_qplib_req_notify_cq(struct bnxt_qplib_cq *cq, u32 arm_type);
552 void bnxt_qplib_free_nq(struct bnxt_qplib_nq *nq);
553 int bnxt_qplib_alloc_nq(struct pci_dev *pdev, struct bnxt_qplib_nq *nq);
554 void bnxt_qplib_add_flush_qp(struct bnxt_qplib_qp *qp);
555 void bnxt_qplib_acquire_cq_locks(struct bnxt_qplib_qp *qp,
556 unsigned long *flags);
557 void bnxt_qplib_release_cq_locks(struct bnxt_qplib_qp *qp,
558 unsigned long *flags);
559 int bnxt_qplib_process_flush_list(struct bnxt_qplib_cq *cq,
560 struct bnxt_qplib_cqe *cqe,
561 int num_cqes);
562 void bnxt_qplib_flush_cqn_wq(struct bnxt_qplib_qp *qp);
563 #endif