1 /* 2 * Broadcom NetXtreme-E RoCE driver. 3 * 4 * Copyright (c) 2016 - 2017, Broadcom. All rights reserved. The term 5 * Broadcom refers to Broadcom Limited and/or its subsidiaries. 6 * 7 * This software is available to you under a choice of one of two 8 * licenses. You may choose to be licensed under the terms of the GNU 9 * General Public License (GPL) Version 2, available from the file 10 * COPYING in the main directory of this source tree, or the 11 * BSD license below: 12 * 13 * Redistribution and use in source and binary forms, with or without 14 * modification, are permitted provided that the following conditions 15 * are met: 16 * 17 * 1. Redistributions of source code must retain the above copyright 18 * notice, this list of conditions and the following disclaimer. 19 * 2. Redistributions in binary form must reproduce the above copyright 20 * notice, this list of conditions and the following disclaimer in 21 * the documentation and/or other materials provided with the 22 * distribution. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' 25 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 26 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 27 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS 28 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 29 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 30 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 31 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 32 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE 33 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN 34 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 35 * 36 * Description: Fast Path Operators (header) 37 */ 38 39 #ifndef __BNXT_QPLIB_FP_H__ 40 #define __BNXT_QPLIB_FP_H__ 41 42 /* Few helper structures temporarily defined here 43 * should get rid of these when roce_hsi.h is updated 44 * in original code base 45 */ 46 struct sq_ud_ext_hdr { 47 __le32 dst_qp; 48 __le32 avid; 49 __le64 rsvd; 50 }; 51 52 struct sq_raw_ext_hdr { 53 __le32 cfa_meta; 54 __le32 rsvd0; 55 __le64 rsvd1; 56 }; 57 58 struct sq_rdma_ext_hdr { 59 __le64 remote_va; 60 __le32 remote_key; 61 __le32 rsvd; 62 }; 63 64 struct sq_atomic_ext_hdr { 65 __le64 swap_data; 66 __le64 cmp_data; 67 }; 68 69 struct sq_fr_pmr_ext_hdr { 70 __le64 pblptr; 71 __le64 va; 72 }; 73 74 struct sq_bind_ext_hdr { 75 __le64 va; 76 __le32 length_lo; 77 __le32 length_hi; 78 }; 79 80 struct rq_ext_hdr { 81 __le64 rsvd1; 82 __le64 rsvd2; 83 }; 84 85 /* Helper structures end */ 86 87 struct bnxt_qplib_srq { 88 struct bnxt_qplib_pd *pd; 89 struct bnxt_qplib_dpi *dpi; 90 struct bnxt_qplib_db_info dbinfo; 91 u64 srq_handle; 92 u32 id; 93 u16 wqe_size; 94 u32 max_wqe; 95 u32 max_sge; 96 u32 threshold; 97 bool arm_req; 98 struct bnxt_qplib_cq *cq; 99 struct bnxt_qplib_hwq hwq; 100 struct bnxt_qplib_swq *swq; 101 int start_idx; 102 int last_idx; 103 struct bnxt_qplib_sg_info sg_info; 104 u16 eventq_hw_ring_id; 105 spinlock_t lock; /* protect SRQE link list */ 106 }; 107 108 struct bnxt_qplib_sge { 109 u64 addr; 110 u32 lkey; 111 u32 size; 112 }; 113 114 #define BNXT_QPLIB_QP_MAX_SGL 6 115 struct bnxt_qplib_swq { 116 u64 wr_id; 117 int next_idx; 118 u8 type; 119 u8 flags; 120 u32 start_psn; 121 u32 next_psn; 122 u32 slot_idx; 123 u8 slots; 124 struct sq_psn_search *psn_search; 125 struct sq_psn_search_ext *psn_ext; 126 }; 127 128 struct bnxt_qplib_swqe { 129 /* General */ 130 #define BNXT_QPLIB_FENCE_WRID 0x46454E43 /* "FENC" */ 131 u64 wr_id; 132 u8 reqs_type; 133 u8 type; 134 #define BNXT_QPLIB_SWQE_TYPE_SEND 0 135 #define BNXT_QPLIB_SWQE_TYPE_SEND_WITH_IMM 1 136 #define BNXT_QPLIB_SWQE_TYPE_SEND_WITH_INV 2 137 #define BNXT_QPLIB_SWQE_TYPE_RDMA_WRITE 4 138 #define BNXT_QPLIB_SWQE_TYPE_RDMA_WRITE_WITH_IMM 5 139 #define BNXT_QPLIB_SWQE_TYPE_RDMA_READ 6 140 #define BNXT_QPLIB_SWQE_TYPE_ATOMIC_CMP_AND_SWP 8 141 #define BNXT_QPLIB_SWQE_TYPE_ATOMIC_FETCH_AND_ADD 11 142 #define BNXT_QPLIB_SWQE_TYPE_LOCAL_INV 12 143 #define BNXT_QPLIB_SWQE_TYPE_FAST_REG_MR 13 144 #define BNXT_QPLIB_SWQE_TYPE_REG_MR 13 145 #define BNXT_QPLIB_SWQE_TYPE_BIND_MW 14 146 #define BNXT_QPLIB_SWQE_TYPE_RECV 128 147 #define BNXT_QPLIB_SWQE_TYPE_RECV_RDMA_IMM 129 148 u8 flags; 149 #define BNXT_QPLIB_SWQE_FLAGS_SIGNAL_COMP BIT(0) 150 #define BNXT_QPLIB_SWQE_FLAGS_RD_ATOMIC_FENCE BIT(1) 151 #define BNXT_QPLIB_SWQE_FLAGS_UC_FENCE BIT(2) 152 #define BNXT_QPLIB_SWQE_FLAGS_SOLICIT_EVENT BIT(3) 153 #define BNXT_QPLIB_SWQE_FLAGS_INLINE BIT(4) 154 struct bnxt_qplib_sge sg_list[BNXT_QPLIB_QP_MAX_SGL]; 155 int num_sge; 156 /* Max inline data is 96 bytes */ 157 u32 inline_len; 158 #define BNXT_QPLIB_SWQE_MAX_INLINE_LENGTH 96 159 u8 inline_data[BNXT_QPLIB_SWQE_MAX_INLINE_LENGTH]; 160 161 union { 162 /* Send, with imm, inval key */ 163 struct { 164 union { 165 __be32 imm_data; 166 u32 inv_key; 167 }; 168 u32 q_key; 169 u32 dst_qp; 170 u16 avid; 171 } send; 172 173 /* Send Raw Ethernet and QP1 */ 174 struct { 175 u16 lflags; 176 u16 cfa_action; 177 u32 cfa_meta; 178 } rawqp1; 179 180 /* RDMA write, with imm, read */ 181 struct { 182 union { 183 __be32 imm_data; 184 u32 inv_key; 185 }; 186 u64 remote_va; 187 u32 r_key; 188 } rdma; 189 190 /* Atomic cmp/swap, fetch/add */ 191 struct { 192 u64 remote_va; 193 u32 r_key; 194 u64 swap_data; 195 u64 cmp_data; 196 } atomic; 197 198 /* Local Invalidate */ 199 struct { 200 u32 inv_l_key; 201 } local_inv; 202 203 /* FR-PMR */ 204 struct { 205 u8 access_cntl; 206 u8 pg_sz_log; 207 bool zero_based; 208 u32 l_key; 209 u32 length; 210 u8 pbl_pg_sz_log; 211 #define BNXT_QPLIB_SWQE_PAGE_SIZE_4K 0 212 #define BNXT_QPLIB_SWQE_PAGE_SIZE_8K 1 213 #define BNXT_QPLIB_SWQE_PAGE_SIZE_64K 4 214 #define BNXT_QPLIB_SWQE_PAGE_SIZE_256K 6 215 #define BNXT_QPLIB_SWQE_PAGE_SIZE_1M 8 216 #define BNXT_QPLIB_SWQE_PAGE_SIZE_2M 9 217 #define BNXT_QPLIB_SWQE_PAGE_SIZE_4M 10 218 #define BNXT_QPLIB_SWQE_PAGE_SIZE_1G 18 219 u8 levels; 220 #define PAGE_SHIFT_4K 12 221 __le64 *pbl_ptr; 222 dma_addr_t pbl_dma_ptr; 223 u64 *page_list; 224 u16 page_list_len; 225 u64 va; 226 } frmr; 227 228 /* Bind */ 229 struct { 230 u8 access_cntl; 231 #define BNXT_QPLIB_BIND_SWQE_ACCESS_LOCAL_WRITE BIT(0) 232 #define BNXT_QPLIB_BIND_SWQE_ACCESS_REMOTE_READ BIT(1) 233 #define BNXT_QPLIB_BIND_SWQE_ACCESS_REMOTE_WRITE BIT(2) 234 #define BNXT_QPLIB_BIND_SWQE_ACCESS_REMOTE_ATOMIC BIT(3) 235 #define BNXT_QPLIB_BIND_SWQE_ACCESS_WINDOW_BIND BIT(4) 236 bool zero_based; 237 u8 mw_type; 238 u32 parent_l_key; 239 u32 r_key; 240 u64 va; 241 u32 length; 242 } bind; 243 }; 244 }; 245 246 struct bnxt_qplib_q { 247 struct bnxt_qplib_hwq hwq; 248 struct bnxt_qplib_swq *swq; 249 struct bnxt_qplib_db_info dbinfo; 250 struct bnxt_qplib_sg_info sg_info; 251 u32 max_wqe; 252 u16 wqe_size; 253 u16 q_full_delta; 254 u16 max_sge; 255 u32 psn; 256 bool condition; 257 bool single; 258 bool send_phantom; 259 u32 phantom_wqe_cnt; 260 u32 phantom_cqe_cnt; 261 u32 next_cq_cons; 262 bool flushed; 263 u32 swq_start; 264 u32 swq_last; 265 }; 266 267 struct bnxt_qplib_qp { 268 struct bnxt_qplib_pd *pd; 269 struct bnxt_qplib_dpi *dpi; 270 struct bnxt_qplib_chip_ctx *cctx; 271 u64 qp_handle; 272 #define BNXT_QPLIB_QP_ID_INVALID 0xFFFFFFFF 273 u32 id; 274 u8 type; 275 u8 sig_type; 276 u8 wqe_mode; 277 u8 state; 278 u8 cur_qp_state; 279 u64 modify_flags; 280 u32 max_inline_data; 281 u32 mtu; 282 u8 path_mtu; 283 bool en_sqd_async_notify; 284 u16 pkey_index; 285 u32 qkey; 286 u32 dest_qp_id; 287 u8 access; 288 u8 timeout; 289 u8 retry_cnt; 290 u8 rnr_retry; 291 u64 wqe_cnt; 292 u32 min_rnr_timer; 293 u32 max_rd_atomic; 294 u32 max_dest_rd_atomic; 295 u32 dest_qpn; 296 u8 smac[6]; 297 u16 vlan_id; 298 u8 nw_type; 299 struct bnxt_qplib_ah ah; 300 301 #define BTH_PSN_MASK ((1 << 24) - 1) 302 /* SQ */ 303 struct bnxt_qplib_q sq; 304 /* RQ */ 305 struct bnxt_qplib_q rq; 306 /* SRQ */ 307 struct bnxt_qplib_srq *srq; 308 /* CQ */ 309 struct bnxt_qplib_cq *scq; 310 struct bnxt_qplib_cq *rcq; 311 /* IRRQ and ORRQ */ 312 struct bnxt_qplib_hwq irrq; 313 struct bnxt_qplib_hwq orrq; 314 /* Header buffer for QP1 */ 315 int sq_hdr_buf_size; 316 int rq_hdr_buf_size; 317 /* 318 * Buffer space for ETH(14), IP or GRH(40), UDP header(8) 319 * and ib_bth + ib_deth (20). 320 * Max required is 82 when RoCE V2 is enabled 321 */ 322 #define BNXT_QPLIB_MAX_QP1_SQ_HDR_SIZE_V2 86 323 /* Ethernet header = 14 */ 324 /* ib_grh = 40 (provided by MAD) */ 325 /* ib_bth + ib_deth = 20 */ 326 /* MAD = 256 (provided by MAD) */ 327 /* iCRC = 4 */ 328 #define BNXT_QPLIB_MAX_QP1_RQ_ETH_HDR_SIZE 14 329 #define BNXT_QPLIB_MAX_QP1_RQ_HDR_SIZE_V2 512 330 #define BNXT_QPLIB_MAX_GRH_HDR_SIZE_IPV4 20 331 #define BNXT_QPLIB_MAX_GRH_HDR_SIZE_IPV6 40 332 #define BNXT_QPLIB_MAX_QP1_RQ_BDETH_HDR_SIZE 20 333 void *sq_hdr_buf; 334 dma_addr_t sq_hdr_buf_map; 335 void *rq_hdr_buf; 336 dma_addr_t rq_hdr_buf_map; 337 struct list_head sq_flush; 338 struct list_head rq_flush; 339 }; 340 341 #define BNXT_QPLIB_MAX_CQE_ENTRY_SIZE sizeof(struct cq_base) 342 343 #define CQE_CNT_PER_PG (PAGE_SIZE / BNXT_QPLIB_MAX_CQE_ENTRY_SIZE) 344 #define CQE_MAX_IDX_PER_PG (CQE_CNT_PER_PG - 1) 345 #define CQE_PG(x) (((x) & ~CQE_MAX_IDX_PER_PG) / CQE_CNT_PER_PG) 346 #define CQE_IDX(x) ((x) & CQE_MAX_IDX_PER_PG) 347 348 #define ROCE_CQE_CMP_V 0 349 #define CQE_CMP_VALID(hdr, raw_cons, cp_bit) \ 350 (!!((hdr)->cqe_type_toggle & CQ_BASE_TOGGLE) == \ 351 !((raw_cons) & (cp_bit))) 352 353 static inline bool bnxt_qplib_queue_full(struct bnxt_qplib_q *que, 354 u8 slots) 355 { 356 struct bnxt_qplib_hwq *hwq; 357 int avail; 358 359 hwq = &que->hwq; 360 /* False full is possible, retrying post-send makes sense */ 361 avail = hwq->cons - hwq->prod; 362 if (hwq->cons <= hwq->prod) 363 avail += hwq->depth; 364 return avail <= slots; 365 } 366 367 struct bnxt_qplib_cqe { 368 u8 status; 369 u8 type; 370 u8 opcode; 371 u32 length; 372 u16 cfa_meta; 373 u64 wr_id; 374 union { 375 __be32 immdata; 376 u32 invrkey; 377 }; 378 u64 qp_handle; 379 u64 mr_handle; 380 u16 flags; 381 u8 smac[6]; 382 u32 src_qp; 383 u16 raweth_qp1_flags; 384 u16 raweth_qp1_errors; 385 u16 raweth_qp1_cfa_code; 386 u32 raweth_qp1_flags2; 387 u32 raweth_qp1_metadata; 388 u8 raweth_qp1_payload_offset; 389 u16 pkey_index; 390 }; 391 392 #define BNXT_QPLIB_QUEUE_START_PERIOD 0x01 393 struct bnxt_qplib_cq { 394 struct bnxt_qplib_dpi *dpi; 395 struct bnxt_qplib_db_info dbinfo; 396 u32 max_wqe; 397 u32 id; 398 u16 count; 399 u16 period; 400 struct bnxt_qplib_hwq hwq; 401 u32 cnq_hw_ring_id; 402 struct bnxt_qplib_nq *nq; 403 bool resize_in_progress; 404 struct bnxt_qplib_sg_info sg_info; 405 u64 cq_handle; 406 407 #define CQ_RESIZE_WAIT_TIME_MS 500 408 unsigned long flags; 409 #define CQ_FLAGS_RESIZE_IN_PROG 1 410 wait_queue_head_t waitq; 411 struct list_head sqf_head, rqf_head; 412 atomic_t arm_state; 413 spinlock_t compl_lock; /* synch CQ handlers */ 414 /* Locking Notes: 415 * QP can move to error state from modify_qp, async error event or error 416 * CQE as part of poll_cq. When QP is moved to error state, it gets added 417 * to two flush lists, one each for SQ and RQ. 418 * Each flush list is protected by qplib_cq->flush_lock. Both scq and rcq 419 * flush_locks should be acquired when QP is moved to error. The control path 420 * operations(modify_qp and async error events) are synchronized with poll_cq 421 * using upper level CQ locks (bnxt_re_cq->cq_lock) of both SCQ and RCQ. 422 * The qplib_cq->flush_lock is required to synchronize two instances of poll_cq 423 * of the same QP while manipulating the flush list. 424 */ 425 spinlock_t flush_lock; /* QP flush management */ 426 u16 cnq_events; 427 }; 428 429 #define BNXT_QPLIB_MAX_IRRQE_ENTRY_SIZE sizeof(struct xrrq_irrq) 430 #define BNXT_QPLIB_MAX_ORRQE_ENTRY_SIZE sizeof(struct xrrq_orrq) 431 #define IRD_LIMIT_TO_IRRQ_SLOTS(x) (2 * (x) + 2) 432 #define IRRQ_SLOTS_TO_IRD_LIMIT(s) (((s) >> 1) - 1) 433 #define ORD_LIMIT_TO_ORRQ_SLOTS(x) ((x) + 1) 434 #define ORRQ_SLOTS_TO_ORD_LIMIT(s) ((s) - 1) 435 436 #define BNXT_QPLIB_MAX_NQE_ENTRY_SIZE sizeof(struct nq_base) 437 438 #define NQE_CNT_PER_PG (PAGE_SIZE / BNXT_QPLIB_MAX_NQE_ENTRY_SIZE) 439 #define NQE_MAX_IDX_PER_PG (NQE_CNT_PER_PG - 1) 440 #define NQE_PG(x) (((x) & ~NQE_MAX_IDX_PER_PG) / NQE_CNT_PER_PG) 441 #define NQE_IDX(x) ((x) & NQE_MAX_IDX_PER_PG) 442 443 #define NQE_CMP_VALID(hdr, raw_cons, cp_bit) \ 444 (!!(le32_to_cpu((hdr)->info63_v[0]) & NQ_BASE_V) == \ 445 !((raw_cons) & (cp_bit))) 446 447 #define BNXT_QPLIB_NQE_MAX_CNT (128 * 1024) 448 449 #define NQ_CONS_PCI_BAR_REGION 2 450 #define NQ_DB_KEY_CP (0x2 << CMPL_DOORBELL_KEY_SFT) 451 #define NQ_DB_IDX_VALID CMPL_DOORBELL_IDX_VALID 452 #define NQ_DB_IRQ_DIS CMPL_DOORBELL_MASK 453 #define NQ_DB_CP_FLAGS_REARM (NQ_DB_KEY_CP | \ 454 NQ_DB_IDX_VALID) 455 #define NQ_DB_CP_FLAGS (NQ_DB_KEY_CP | \ 456 NQ_DB_IDX_VALID | \ 457 NQ_DB_IRQ_DIS) 458 459 struct bnxt_qplib_nq_db { 460 struct bnxt_qplib_reg_desc reg; 461 struct bnxt_qplib_db_info dbinfo; 462 }; 463 464 typedef int (*cqn_handler_t)(struct bnxt_qplib_nq *nq, 465 struct bnxt_qplib_cq *cq); 466 typedef int (*srqn_handler_t)(struct bnxt_qplib_nq *nq, 467 struct bnxt_qplib_srq *srq, u8 event); 468 469 struct bnxt_qplib_nq { 470 struct pci_dev *pdev; 471 struct bnxt_qplib_res *res; 472 char name[32]; 473 struct bnxt_qplib_hwq hwq; 474 struct bnxt_qplib_nq_db nq_db; 475 u16 ring_id; 476 int msix_vec; 477 cpumask_t mask; 478 struct tasklet_struct nq_tasklet; 479 bool requested; 480 int budget; 481 482 cqn_handler_t cqn_handler; 483 srqn_handler_t srqn_handler; 484 struct workqueue_struct *cqn_wq; 485 }; 486 487 struct bnxt_qplib_nq_work { 488 struct work_struct work; 489 struct bnxt_qplib_nq *nq; 490 struct bnxt_qplib_cq *cq; 491 }; 492 493 void bnxt_qplib_nq_stop_irq(struct bnxt_qplib_nq *nq, bool kill); 494 void bnxt_qplib_disable_nq(struct bnxt_qplib_nq *nq); 495 int bnxt_qplib_nq_start_irq(struct bnxt_qplib_nq *nq, int nq_indx, 496 int msix_vector, bool need_init); 497 int bnxt_qplib_enable_nq(struct pci_dev *pdev, struct bnxt_qplib_nq *nq, 498 int nq_idx, int msix_vector, int bar_reg_offset, 499 cqn_handler_t cqn_handler, 500 srqn_handler_t srq_handler); 501 int bnxt_qplib_create_srq(struct bnxt_qplib_res *res, 502 struct bnxt_qplib_srq *srq); 503 int bnxt_qplib_modify_srq(struct bnxt_qplib_res *res, 504 struct bnxt_qplib_srq *srq); 505 int bnxt_qplib_query_srq(struct bnxt_qplib_res *res, 506 struct bnxt_qplib_srq *srq); 507 void bnxt_qplib_destroy_srq(struct bnxt_qplib_res *res, 508 struct bnxt_qplib_srq *srq); 509 int bnxt_qplib_post_srq_recv(struct bnxt_qplib_srq *srq, 510 struct bnxt_qplib_swqe *wqe); 511 int bnxt_qplib_create_qp1(struct bnxt_qplib_res *res, struct bnxt_qplib_qp *qp); 512 int bnxt_qplib_create_qp(struct bnxt_qplib_res *res, struct bnxt_qplib_qp *qp); 513 int bnxt_qplib_modify_qp(struct bnxt_qplib_res *res, struct bnxt_qplib_qp *qp); 514 int bnxt_qplib_query_qp(struct bnxt_qplib_res *res, struct bnxt_qplib_qp *qp); 515 int bnxt_qplib_destroy_qp(struct bnxt_qplib_res *res, struct bnxt_qplib_qp *qp); 516 void bnxt_qplib_clean_qp(struct bnxt_qplib_qp *qp); 517 void bnxt_qplib_free_qp_res(struct bnxt_qplib_res *res, 518 struct bnxt_qplib_qp *qp); 519 void *bnxt_qplib_get_qp1_sq_buf(struct bnxt_qplib_qp *qp, 520 struct bnxt_qplib_sge *sge); 521 void *bnxt_qplib_get_qp1_rq_buf(struct bnxt_qplib_qp *qp, 522 struct bnxt_qplib_sge *sge); 523 u32 bnxt_qplib_get_rq_prod_index(struct bnxt_qplib_qp *qp); 524 dma_addr_t bnxt_qplib_get_qp_buf_from_index(struct bnxt_qplib_qp *qp, 525 u32 index); 526 void bnxt_qplib_post_send_db(struct bnxt_qplib_qp *qp); 527 int bnxt_qplib_post_send(struct bnxt_qplib_qp *qp, 528 struct bnxt_qplib_swqe *wqe); 529 void bnxt_qplib_post_recv_db(struct bnxt_qplib_qp *qp); 530 int bnxt_qplib_post_recv(struct bnxt_qplib_qp *qp, 531 struct bnxt_qplib_swqe *wqe); 532 int bnxt_qplib_create_cq(struct bnxt_qplib_res *res, struct bnxt_qplib_cq *cq); 533 int bnxt_qplib_destroy_cq(struct bnxt_qplib_res *res, struct bnxt_qplib_cq *cq); 534 int bnxt_qplib_poll_cq(struct bnxt_qplib_cq *cq, struct bnxt_qplib_cqe *cqe, 535 int num, struct bnxt_qplib_qp **qp); 536 bool bnxt_qplib_is_cq_empty(struct bnxt_qplib_cq *cq); 537 void bnxt_qplib_req_notify_cq(struct bnxt_qplib_cq *cq, u32 arm_type); 538 void bnxt_qplib_free_nq(struct bnxt_qplib_nq *nq); 539 int bnxt_qplib_alloc_nq(struct bnxt_qplib_res *res, struct bnxt_qplib_nq *nq); 540 void bnxt_qplib_add_flush_qp(struct bnxt_qplib_qp *qp); 541 void bnxt_qplib_acquire_cq_locks(struct bnxt_qplib_qp *qp, 542 unsigned long *flags); 543 void bnxt_qplib_release_cq_locks(struct bnxt_qplib_qp *qp, 544 unsigned long *flags); 545 int bnxt_qplib_process_flush_list(struct bnxt_qplib_cq *cq, 546 struct bnxt_qplib_cqe *cqe, 547 int num_cqes); 548 void bnxt_qplib_flush_cqn_wq(struct bnxt_qplib_qp *qp); 549 550 static inline void *bnxt_qplib_get_swqe(struct bnxt_qplib_q *que, u32 *swq_idx) 551 { 552 u32 idx; 553 554 idx = que->swq_start; 555 if (swq_idx) 556 *swq_idx = idx; 557 return &que->swq[idx]; 558 } 559 560 static inline void bnxt_qplib_swq_mod_start(struct bnxt_qplib_q *que, u32 idx) 561 { 562 que->swq_start = que->swq[idx].next_idx; 563 } 564 565 static inline u32 bnxt_qplib_get_depth(struct bnxt_qplib_q *que) 566 { 567 return (que->wqe_size * que->max_wqe) / sizeof(struct sq_sge); 568 } 569 570 static inline u32 bnxt_qplib_set_sq_size(struct bnxt_qplib_q *que, u8 wqe_mode) 571 { 572 return (wqe_mode == BNXT_QPLIB_WQE_MODE_STATIC) ? 573 que->max_wqe : bnxt_qplib_get_depth(que); 574 } 575 576 static inline u32 bnxt_qplib_set_sq_max_slot(u8 wqe_mode) 577 { 578 return (wqe_mode == BNXT_QPLIB_WQE_MODE_STATIC) ? 579 sizeof(struct sq_send) / sizeof(struct sq_sge) : 1; 580 } 581 582 static inline u32 bnxt_qplib_set_rq_max_slot(u32 wqe_size) 583 { 584 return (wqe_size / sizeof(struct sq_sge)); 585 } 586 587 static inline u16 __xlate_qfd(u16 delta, u16 wqe_bytes) 588 { 589 /* For Cu/Wh delta = 128, stride = 16, wqe_bytes = 128 590 * For Gen-p5 B/C mode delta = 0, stride = 16, wqe_bytes = 128. 591 * For Gen-p5 delta = 0, stride = 16, 32 <= wqe_bytes <= 512. 592 * when 8916 is disabled. 593 */ 594 return (delta * wqe_bytes) / sizeof(struct sq_sge); 595 } 596 597 static inline u16 bnxt_qplib_calc_ilsize(struct bnxt_qplib_swqe *wqe, u16 max) 598 { 599 u16 size = 0; 600 int indx; 601 602 for (indx = 0; indx < wqe->num_sge; indx++) 603 size += wqe->sg_list[indx].size; 604 if (size > max) 605 size = max; 606 607 return size; 608 } 609 #endif /* __BNXT_QPLIB_FP_H__ */ 610