1 /* 2 * Copyright (c) 2016-2018 The Linux Foundation. All rights reserved. 3 * 4 * Permission to use, copy, modify, and/or distribute this software for 5 * any purpose with or without fee is hereby granted, provided that the 6 * above copyright notice and this permission notice appear in all 7 * copies. 8 * 9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL 10 * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED 11 * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE 12 * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL 13 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR 14 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER 15 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR 16 * PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19 #ifndef _DP_RX_H 20 #define _DP_RX_H 21 22 #include "hal_rx.h" 23 #include "dp_tx.h" 24 #include "dp_peer.h" 25 #include "dp_internal.h" 26 27 #ifdef RXDMA_OPTIMIZATION 28 #define RX_BUFFER_ALIGNMENT 128 29 #else /* RXDMA_OPTIMIZATION */ 30 #define RX_BUFFER_ALIGNMENT 4 31 #endif /* RXDMA_OPTIMIZATION */ 32 33 #ifdef QCA_HOST2FW_RXBUF_RING 34 #define DP_WBM2SW_RBM HAL_RX_BUF_RBM_SW1_BM 35 #else 36 #define DP_WBM2SW_RBM HAL_RX_BUF_RBM_SW3_BM 37 #endif 38 #define RX_BUFFER_SIZE 2048 39 #define RX_BUFFER_RESERVATION 0 40 41 #define DP_PEER_METADATA_PEER_ID_MASK 0x0000ffff 42 #define DP_PEER_METADATA_PEER_ID_SHIFT 0 43 #define DP_PEER_METADATA_VDEV_ID_MASK 0x00070000 44 #define DP_PEER_METADATA_VDEV_ID_SHIFT 16 45 46 #define DP_PEER_METADATA_PEER_ID_GET(_peer_metadata) \ 47 (((_peer_metadata) & DP_PEER_METADATA_PEER_ID_MASK) \ 48 >> DP_PEER_METADATA_PEER_ID_SHIFT) 49 50 #define DP_PEER_METADATA_ID_GET(_peer_metadata) \ 51 (((_peer_metadata) & DP_PEER_METADATA_VDEV_ID_MASK) \ 52 >> DP_PEER_METADATA_VDEV_ID_SHIFT) 53 54 #define DP_RX_DESC_MAGIC 0xdec0de 55 56 /** 57 * struct dp_rx_desc 58 * 59 * @nbuf : VA of the "skb" posted 60 * @rx_buf_start : VA of the original Rx buffer, before 61 * movement of any skb->data pointer 62 * @cookie : index into the sw array which holds 63 * the sw Rx descriptors 64 * Cookie space is 21 bits: 65 * lower 18 bits -- index 66 * upper 3 bits -- pool_id 67 * @pool_id : pool Id for which this allocated. 68 * Can only be used if there is no flow 69 * steering 70 * @in_use rx_desc is in use 71 * @unmapped used to mark rx_desc an unmapped if the corresponding 72 * nbuf is already unmapped 73 */ 74 struct dp_rx_desc { 75 qdf_nbuf_t nbuf; 76 uint8_t *rx_buf_start; 77 uint32_t cookie; 78 uint8_t pool_id; 79 #ifdef RX_DESC_DEBUG_CHECK 80 uint32_t magic; 81 #endif 82 uint8_t in_use:1, 83 unmapped:1; 84 }; 85 86 #define RX_DESC_COOKIE_INDEX_SHIFT 0 87 #define RX_DESC_COOKIE_INDEX_MASK 0x3ffff /* 18 bits */ 88 #define RX_DESC_COOKIE_POOL_ID_SHIFT 18 89 #define RX_DESC_COOKIE_POOL_ID_MASK 0x1c0000 90 91 #define DP_RX_DESC_COOKIE_POOL_ID_GET(_cookie) \ 92 (((_cookie) & RX_DESC_COOKIE_POOL_ID_MASK) >> \ 93 RX_DESC_COOKIE_POOL_ID_SHIFT) 94 95 #define DP_RX_DESC_COOKIE_INDEX_GET(_cookie) \ 96 (((_cookie) & RX_DESC_COOKIE_INDEX_MASK) >> \ 97 RX_DESC_COOKIE_INDEX_SHIFT) 98 99 /* 100 *dp_rx_xor_block() - xor block of data 101 *@b: destination data block 102 *@a: source data block 103 *@len: length of the data to process 104 * 105 *Returns: None 106 */ 107 static inline void dp_rx_xor_block(uint8_t *b, const uint8_t *a, qdf_size_t len) 108 { 109 qdf_size_t i; 110 111 for (i = 0; i < len; i++) 112 b[i] ^= a[i]; 113 } 114 115 /* 116 *dp_rx_rotl() - rotate the bits left 117 *@val: unsigned integer input value 118 *@bits: number of bits 119 * 120 *Returns: Integer with left rotated by number of 'bits' 121 */ 122 static inline uint32_t dp_rx_rotl(uint32_t val, int bits) 123 { 124 return (val << bits) | (val >> (32 - bits)); 125 } 126 127 /* 128 *dp_rx_rotr() - rotate the bits right 129 *@val: unsigned integer input value 130 *@bits: number of bits 131 * 132 *Returns: Integer with right rotated by number of 'bits' 133 */ 134 static inline uint32_t dp_rx_rotr(uint32_t val, int bits) 135 { 136 return (val >> bits) | (val << (32 - bits)); 137 } 138 139 /* 140 * dp_set_rx_queue() - set queue_mapping in skb 141 * @nbuf: skb 142 * @queue_id: rx queue_id 143 * 144 * Return: void 145 */ 146 #ifdef QCA_OL_RX_MULTIQ_SUPPORT 147 static inline void dp_set_rx_queue(qdf_nbuf_t nbuf, uint8_t queue_id) 148 { 149 qdf_nbuf_record_rx_queue(nbuf, queue_id); 150 return; 151 } 152 #else 153 static inline void dp_set_rx_queue(qdf_nbuf_t nbuf, uint8_t queue_id) 154 { 155 } 156 #endif 157 158 /* 159 *dp_rx_xswap() - swap the bits left 160 *@val: unsigned integer input value 161 * 162 *Returns: Integer with bits swapped 163 */ 164 static inline uint32_t dp_rx_xswap(uint32_t val) 165 { 166 return ((val & 0x00ff00ff) << 8) | ((val & 0xff00ff00) >> 8); 167 } 168 169 /* 170 *dp_rx_get_le32_split() - get little endian 32 bits split 171 *@b0: byte 0 172 *@b1: byte 1 173 *@b2: byte 2 174 *@b3: byte 3 175 * 176 *Returns: Integer with split little endian 32 bits 177 */ 178 static inline uint32_t dp_rx_get_le32_split(uint8_t b0, uint8_t b1, uint8_t b2, 179 uint8_t b3) 180 { 181 return b0 | (b1 << 8) | (b2 << 16) | (b3 << 24); 182 } 183 184 /* 185 *dp_rx_get_le32() - get little endian 32 bits 186 *@b0: byte 0 187 *@b1: byte 1 188 *@b2: byte 2 189 *@b3: byte 3 190 * 191 *Returns: Integer with little endian 32 bits 192 */ 193 static inline uint32_t dp_rx_get_le32(const uint8_t *p) 194 { 195 return dp_rx_get_le32_split(p[0], p[1], p[2], p[3]); 196 } 197 198 /* 199 * dp_rx_put_le32() - put little endian 32 bits 200 * @p: destination char array 201 * @v: source 32-bit integer 202 * 203 * Returns: None 204 */ 205 static inline void dp_rx_put_le32(uint8_t *p, uint32_t v) 206 { 207 p[0] = (v) & 0xff; 208 p[1] = (v >> 8) & 0xff; 209 p[2] = (v >> 16) & 0xff; 210 p[3] = (v >> 24) & 0xff; 211 } 212 213 /* Extract michal mic block of data */ 214 #define dp_rx_michael_block(l, r) \ 215 do { \ 216 r ^= dp_rx_rotl(l, 17); \ 217 l += r; \ 218 r ^= dp_rx_xswap(l); \ 219 l += r; \ 220 r ^= dp_rx_rotl(l, 3); \ 221 l += r; \ 222 r ^= dp_rx_rotr(l, 2); \ 223 l += r; \ 224 } while (0) 225 226 /** 227 * struct dp_rx_desc_list_elem_t 228 * 229 * @next : Next pointer to form free list 230 * @rx_desc : DP Rx descriptor 231 */ 232 union dp_rx_desc_list_elem_t { 233 union dp_rx_desc_list_elem_t *next; 234 struct dp_rx_desc rx_desc; 235 }; 236 237 /** 238 * dp_rx_cookie_2_va_rxdma_buf() - Converts cookie to a virtual address of 239 * the Rx descriptor on Rx DMA source ring buffer 240 * @soc: core txrx main context 241 * @cookie: cookie used to lookup virtual address 242 * 243 * Return: void *: Virtual Address of the Rx descriptor 244 */ 245 static inline 246 void *dp_rx_cookie_2_va_rxdma_buf(struct dp_soc *soc, uint32_t cookie) 247 { 248 uint8_t pool_id = DP_RX_DESC_COOKIE_POOL_ID_GET(cookie); 249 uint16_t index = DP_RX_DESC_COOKIE_INDEX_GET(cookie); 250 struct rx_desc_pool *rx_desc_pool; 251 252 if (qdf_unlikely(pool_id >= MAX_RXDESC_POOLS)) 253 return NULL; 254 255 rx_desc_pool = &soc->rx_desc_buf[pool_id]; 256 257 if (qdf_unlikely(index >= rx_desc_pool->pool_size)) 258 return NULL; 259 260 return &(soc->rx_desc_buf[pool_id].array[index].rx_desc); 261 } 262 263 /** 264 * dp_rx_cookie_2_va_mon_buf() - Converts cookie to a virtual address of 265 * the Rx descriptor on monitor ring buffer 266 * @soc: core txrx main context 267 * @cookie: cookie used to lookup virtual address 268 * 269 * Return: void *: Virtual Address of the Rx descriptor 270 */ 271 static inline 272 void *dp_rx_cookie_2_va_mon_buf(struct dp_soc *soc, uint32_t cookie) 273 { 274 uint8_t pool_id = DP_RX_DESC_COOKIE_POOL_ID_GET(cookie); 275 uint16_t index = DP_RX_DESC_COOKIE_INDEX_GET(cookie); 276 /* TODO */ 277 /* Add sanity for pool_id & index */ 278 return &(soc->rx_desc_mon[pool_id].array[index].rx_desc); 279 } 280 281 /** 282 * dp_rx_cookie_2_va_mon_status() - Converts cookie to a virtual address of 283 * the Rx descriptor on monitor status ring buffer 284 * @soc: core txrx main context 285 * @cookie: cookie used to lookup virtual address 286 * 287 * Return: void *: Virtual Address of the Rx descriptor 288 */ 289 static inline 290 void *dp_rx_cookie_2_va_mon_status(struct dp_soc *soc, uint32_t cookie) 291 { 292 uint8_t pool_id = DP_RX_DESC_COOKIE_POOL_ID_GET(cookie); 293 uint16_t index = DP_RX_DESC_COOKIE_INDEX_GET(cookie); 294 /* TODO */ 295 /* Add sanity for pool_id & index */ 296 return &(soc->rx_desc_status[pool_id].array[index].rx_desc); 297 } 298 299 void dp_rx_add_desc_list_to_free_list(struct dp_soc *soc, 300 union dp_rx_desc_list_elem_t **local_desc_list, 301 union dp_rx_desc_list_elem_t **tail, 302 uint16_t pool_id, 303 struct rx_desc_pool *rx_desc_pool); 304 305 uint16_t dp_rx_get_free_desc_list(struct dp_soc *soc, uint32_t pool_id, 306 struct rx_desc_pool *rx_desc_pool, 307 uint16_t num_descs, 308 union dp_rx_desc_list_elem_t **desc_list, 309 union dp_rx_desc_list_elem_t **tail); 310 311 312 QDF_STATUS dp_rx_pdev_attach(struct dp_pdev *pdev); 313 314 void dp_rx_pdev_detach(struct dp_pdev *pdev); 315 316 317 uint32_t 318 dp_rx_process(struct dp_intr *int_ctx, void *hal_ring, uint32_t quota); 319 320 uint32_t dp_rx_err_process(struct dp_soc *soc, void *hal_ring, uint32_t quota); 321 322 uint32_t 323 dp_rx_wbm_err_process(struct dp_soc *soc, void *hal_ring, uint32_t quota); 324 325 /** 326 * dp_rx_sg_create() - create a frag_list for MSDUs which are spread across 327 * multiple nbufs. 328 * @nbuf: pointer to the first msdu of an amsdu. 329 * @rx_tlv_hdr: pointer to the start of RX TLV headers. 330 * 331 * This function implements the creation of RX frag_list for cases 332 * where an MSDU is spread across multiple nbufs. 333 * 334 * Return: returns the head nbuf which contains complete frag_list. 335 */ 336 qdf_nbuf_t dp_rx_sg_create(qdf_nbuf_t nbuf, uint8_t *rx_tlv_hdr); 337 338 QDF_STATUS dp_rx_desc_pool_alloc(struct dp_soc *soc, 339 uint32_t pool_id, 340 uint32_t pool_size, 341 struct rx_desc_pool *rx_desc_pool); 342 343 void dp_rx_desc_pool_free(struct dp_soc *soc, 344 uint32_t pool_id, 345 struct rx_desc_pool *rx_desc_pool); 346 347 void dp_rx_deliver_raw(struct dp_vdev *vdev, qdf_nbuf_t nbuf_list, 348 struct dp_peer *peer); 349 350 /** 351 * dp_rx_add_to_free_desc_list() - Adds to a local free descriptor list 352 * 353 * @head: pointer to the head of local free list 354 * @tail: pointer to the tail of local free list 355 * @new: new descriptor that is added to the free list 356 * 357 * Return: void: 358 */ 359 static inline 360 void dp_rx_add_to_free_desc_list(union dp_rx_desc_list_elem_t **head, 361 union dp_rx_desc_list_elem_t **tail, 362 struct dp_rx_desc *new) 363 { 364 qdf_assert(head && new); 365 366 new->nbuf = NULL; 367 new->in_use = 0; 368 new->unmapped = 0; 369 370 ((union dp_rx_desc_list_elem_t *)new)->next = *head; 371 *head = (union dp_rx_desc_list_elem_t *)new; 372 if (*tail == NULL) 373 *tail = *head; 374 375 } 376 377 /** 378 * dp_rx_wds_srcport_learn() - Add or update the STA PEER which 379 * is behind the WDS repeater. 380 * 381 * @soc: core txrx main context 382 * @rx_tlv_hdr: base address of RX TLV header 383 * @ta_peer: WDS repeater peer 384 * @nbuf: rx pkt 385 * 386 * Return: void: 387 */ 388 #ifdef FEATURE_WDS 389 static inline void 390 dp_rx_wds_srcport_learn(struct dp_soc *soc, 391 uint8_t *rx_tlv_hdr, 392 struct dp_peer *ta_peer, 393 qdf_nbuf_t nbuf) 394 { 395 uint16_t sa_sw_peer_id = hal_rx_msdu_end_sa_sw_peer_id_get(rx_tlv_hdr); 396 uint32_t flags = IEEE80211_NODE_F_WDS_HM; 397 uint32_t ret = 0; 398 uint8_t wds_src_mac[IEEE80211_ADDR_LEN]; 399 struct dp_peer *sa_peer; 400 struct dp_ast_entry *ast; 401 uint16_t sa_idx; 402 403 if (qdf_unlikely(!ta_peer)) 404 return; 405 406 /* For AP mode : Do wds source port learning only if it is a 407 * 4-address mpdu 408 * 409 * For STA mode : Frames from RootAP backend will be in 3-address mode, 410 * till RootAP does the WDS source port learning; Hence in repeater/STA 411 * mode, we enable learning even in 3-address mode , to avoid RootAP 412 * backbone getting wrongly learnt as MEC on repeater 413 */ 414 if (ta_peer->vdev->opmode != wlan_op_mode_sta) { 415 if (!(qdf_nbuf_is_rx_chfrag_start(nbuf) && 416 hal_rx_get_mpdu_mac_ad4_valid(rx_tlv_hdr))) 417 return; 418 } 419 420 memcpy(wds_src_mac, (qdf_nbuf_data(nbuf) + IEEE80211_ADDR_LEN), 421 IEEE80211_ADDR_LEN); 422 423 if (qdf_unlikely(!hal_rx_msdu_end_sa_is_valid_get(rx_tlv_hdr))) { 424 ret = dp_peer_add_ast(soc, 425 ta_peer, 426 wds_src_mac, 427 CDP_TXRX_AST_TYPE_WDS, 428 flags); 429 return; 430 } 431 432 /* 433 * Get the AST entry from HW SA index and mark it as active 434 */ 435 sa_idx = hal_rx_msdu_end_sa_idx_get(rx_tlv_hdr); 436 437 qdf_spin_lock_bh(&soc->ast_lock); 438 ast = soc->ast_table[sa_idx]; 439 440 if (!ast) { 441 qdf_spin_unlock_bh(&soc->ast_lock); 442 return; 443 } 444 445 qdf_spin_unlock_bh(&soc->ast_lock); 446 447 /* 448 * Ensure we are updating the right AST entry by 449 * validating ast_idx. 450 * There is a possibility we might arrive here without 451 * AST MAP event , so this check is mandatory 452 */ 453 if (ast->ast_idx == sa_idx) 454 ast->is_active = TRUE; 455 456 if (sa_sw_peer_id != ta_peer->peer_ids[0]) { 457 sa_peer = ast->peer; 458 459 if ((ast->type != CDP_TXRX_AST_TYPE_STATIC) && 460 (ast->type != CDP_TXRX_AST_TYPE_SELF)) { 461 if (ast->pdev_id != ta_peer->vdev->pdev->pdev_id) { 462 ret = dp_peer_add_ast(soc, 463 ta_peer, wds_src_mac, 464 CDP_TXRX_AST_TYPE_WDS, 465 flags); 466 } else { 467 qdf_spin_lock_bh(&soc->ast_lock); 468 dp_peer_update_ast(soc, ta_peer, ast, flags); 469 qdf_spin_unlock_bh(&soc->ast_lock); 470 return; 471 } 472 } 473 /* 474 * Do not kickout STA if it belongs to a different radio. 475 * For DBDC repeater, it is possible to arrive here 476 * for multicast loopback frames originated from connected 477 * clients and looped back (intrabss) by Root AP 478 */ 479 if (ast->pdev_id != ta_peer->vdev->pdev->pdev_id) { 480 return; 481 } 482 483 /* 484 * Kickout, when direct associated peer(SA) roams 485 * to another AP and reachable via TA peer 486 */ 487 if (!sa_peer->delete_in_progress) { 488 sa_peer->delete_in_progress = true; 489 if (soc->cdp_soc.ol_ops->peer_sta_kickout) { 490 soc->cdp_soc.ol_ops->peer_sta_kickout( 491 sa_peer->vdev->pdev->ctrl_pdev, 492 wds_src_mac); 493 } 494 } 495 } 496 497 return; 498 } 499 #else 500 static inline void 501 dp_rx_wds_srcport_learn(struct dp_soc *soc, 502 uint8_t *rx_tlv_hdr, 503 struct dp_peer *ta_peer, 504 qdf_nbuf_t nbuf) 505 { 506 } 507 #endif 508 509 uint8_t dp_rx_process_invalid_peer(struct dp_soc *soc, qdf_nbuf_t nbuf); 510 void dp_rx_process_invalid_peer_wrapper(struct dp_soc *soc, 511 qdf_nbuf_t mpdu, bool mpdu_done); 512 void dp_rx_process_mic_error(struct dp_soc *soc, qdf_nbuf_t nbuf, uint8_t *rx_tlv_hdr); 513 514 #define DP_RX_LIST_APPEND(head, tail, elem) \ 515 do { \ 516 if (!(head)) { \ 517 (head) = (elem); \ 518 } else { \ 519 qdf_nbuf_set_next((tail), (elem)); \ 520 } \ 521 (tail) = (elem); \ 522 qdf_nbuf_set_next((tail), NULL); \ 523 } while (0) 524 525 #ifndef BUILD_X86 526 static inline int check_x86_paddr(struct dp_soc *dp_soc, qdf_nbuf_t *rx_netbuf, 527 qdf_dma_addr_t *paddr, struct dp_pdev *pdev) 528 { 529 return QDF_STATUS_SUCCESS; 530 } 531 #else 532 #define MAX_RETRY 100 533 static inline int check_x86_paddr(struct dp_soc *dp_soc, qdf_nbuf_t *rx_netbuf, 534 qdf_dma_addr_t *paddr, struct dp_pdev *pdev) 535 { 536 uint32_t nbuf_retry = 0; 537 int32_t ret; 538 const uint32_t x86_phy_addr = 0x50000000; 539 /* 540 * in M2M emulation platforms (x86) the memory below 0x50000000 541 * is reserved for target use, so any memory allocated in this 542 * region should not be used by host 543 */ 544 do { 545 if (qdf_likely(*paddr > x86_phy_addr)) 546 return QDF_STATUS_SUCCESS; 547 else { 548 QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_INFO, 549 "phy addr %pK exceeded 0x50000000 trying again", 550 paddr); 551 552 nbuf_retry++; 553 if ((*rx_netbuf)) { 554 qdf_nbuf_unmap_single(dp_soc->osdev, *rx_netbuf, 555 QDF_DMA_BIDIRECTIONAL); 556 /* Not freeing buffer intentionally. 557 * Observed that same buffer is getting 558 * re-allocated resulting in longer load time 559 * WMI init timeout. 560 * This buffer is anyway not useful so skip it. 561 **/ 562 } 563 564 *rx_netbuf = qdf_nbuf_alloc(dp_soc->osdev, 565 RX_BUFFER_SIZE, 566 RX_BUFFER_RESERVATION, 567 RX_BUFFER_ALIGNMENT, 568 FALSE); 569 570 if (qdf_unlikely(!(*rx_netbuf))) 571 return QDF_STATUS_E_FAILURE; 572 573 ret = qdf_nbuf_map_single(dp_soc->osdev, *rx_netbuf, 574 QDF_DMA_BIDIRECTIONAL); 575 576 if (qdf_unlikely(ret == QDF_STATUS_E_FAILURE)) { 577 qdf_nbuf_free(*rx_netbuf); 578 *rx_netbuf = NULL; 579 continue; 580 } 581 582 *paddr = qdf_nbuf_get_frag_paddr(*rx_netbuf, 0); 583 } 584 } while (nbuf_retry < MAX_RETRY); 585 586 if ((*rx_netbuf)) { 587 qdf_nbuf_unmap_single(dp_soc->osdev, *rx_netbuf, 588 QDF_DMA_BIDIRECTIONAL); 589 qdf_nbuf_free(*rx_netbuf); 590 } 591 592 return QDF_STATUS_E_FAILURE; 593 } 594 #endif 595 596 /** 597 * dp_rx_cookie_2_link_desc_va() - Converts cookie to a virtual address of 598 * the MSDU Link Descriptor 599 * @soc: core txrx main context 600 * @buf_info: buf_info include cookie that used to lookup virtual address of 601 * link descriptor Normally this is just an index into a per SOC array. 602 * 603 * This is the VA of the link descriptor, that HAL layer later uses to 604 * retrieve the list of MSDU's for a given MPDU. 605 * 606 * Return: void *: Virtual Address of the Rx descriptor 607 */ 608 static inline 609 void *dp_rx_cookie_2_link_desc_va(struct dp_soc *soc, 610 struct hal_buf_info *buf_info) 611 { 612 void *link_desc_va; 613 uint32_t bank_id = LINK_DESC_COOKIE_BANK_ID(buf_info->sw_cookie); 614 615 616 /* TODO */ 617 /* Add sanity for cookie */ 618 619 link_desc_va = soc->link_desc_banks[bank_id].base_vaddr + 620 (buf_info->paddr - 621 soc->link_desc_banks[bank_id].base_paddr); 622 623 return link_desc_va; 624 } 625 626 /** 627 * dp_rx_cookie_2_mon_link_desc_va() - Converts cookie to a virtual address of 628 * the MSDU Link Descriptor 629 * @pdev: core txrx pdev context 630 * @buf_info: buf_info includes cookie that used to lookup virtual address of 631 * link descriptor. Normally this is just an index into a per pdev array. 632 * 633 * This is the VA of the link descriptor in monitor mode destination ring, 634 * that HAL layer later uses to retrieve the list of MSDU's for a given MPDU. 635 * 636 * Return: void *: Virtual Address of the Rx descriptor 637 */ 638 static inline 639 void *dp_rx_cookie_2_mon_link_desc_va(struct dp_pdev *pdev, 640 struct hal_buf_info *buf_info, 641 int mac_id) 642 { 643 void *link_desc_va; 644 int mac_for_pdev = dp_get_mac_id_for_mac(pdev->soc, mac_id); 645 646 /* TODO */ 647 /* Add sanity for cookie */ 648 649 link_desc_va = 650 pdev->link_desc_banks[mac_for_pdev][buf_info->sw_cookie].base_vaddr + 651 (buf_info->paddr - 652 pdev->link_desc_banks[mac_for_pdev][buf_info->sw_cookie].base_paddr); 653 654 return link_desc_va; 655 } 656 657 /** 658 * dp_rx_defrag_concat() - Concatenate the fragments 659 * 660 * @dst: destination pointer to the buffer 661 * @src: source pointer from where the fragment payload is to be copied 662 * 663 * Return: QDF_STATUS 664 */ 665 static inline QDF_STATUS dp_rx_defrag_concat(qdf_nbuf_t dst, qdf_nbuf_t src) 666 { 667 /* 668 * Inside qdf_nbuf_cat, if it is necessary to reallocate dst 669 * to provide space for src, the headroom portion is copied from 670 * the original dst buffer to the larger new dst buffer. 671 * (This is needed, because the headroom of the dst buffer 672 * contains the rx desc.) 673 */ 674 if (qdf_nbuf_cat(dst, src)) 675 return QDF_STATUS_E_DEFRAG_ERROR; 676 677 return QDF_STATUS_SUCCESS; 678 } 679 680 /* 681 * dp_rx_ast_set_active() - set the active flag of the astentry 682 * corresponding to a hw index. 683 * @soc: core txrx main context 684 * @sa_idx: hw idx 685 * @is_active: active flag 686 * 687 */ 688 #ifdef FEATURE_WDS 689 static inline QDF_STATUS dp_rx_ast_set_active(struct dp_soc *soc, uint16_t sa_idx, bool is_active) 690 { 691 struct dp_ast_entry *ast; 692 qdf_spin_lock_bh(&soc->ast_lock); 693 ast = soc->ast_table[sa_idx]; 694 695 /* 696 * Ensure we are updating the right AST entry by 697 * validating ast_idx. 698 * There is a possibility we might arrive here without 699 * AST MAP event , so this check is mandatory 700 */ 701 if (ast && (ast->ast_idx == sa_idx)) { 702 ast->is_active = is_active; 703 qdf_spin_unlock_bh(&soc->ast_lock); 704 return QDF_STATUS_SUCCESS; 705 } 706 707 qdf_spin_unlock_bh(&soc->ast_lock); 708 return QDF_STATUS_E_FAILURE; 709 } 710 #else 711 static inline QDF_STATUS dp_rx_ast_set_active(struct dp_soc *soc, uint16_t sa_idx, bool is_active) 712 { 713 return QDF_STATUS_SUCCESS; 714 } 715 #endif 716 717 /* 718 * check_qwrap_multicast_loopback() - Check if rx packet is a loopback packet. 719 * In qwrap mode, packets originated from 720 * any vdev should not loopback and 721 * should be dropped. 722 * @vdev: vdev on which rx packet is received 723 * @nbuf: rx pkt 724 * 725 */ 726 #if ATH_SUPPORT_WRAP 727 static inline bool check_qwrap_multicast_loopback(struct dp_vdev *vdev, 728 qdf_nbuf_t nbuf) 729 { 730 struct dp_vdev *psta_vdev; 731 struct dp_pdev *pdev = vdev->pdev; 732 struct dp_soc *soc = pdev->soc; 733 uint8_t *data = qdf_nbuf_data(nbuf); 734 uint8_t i; 735 736 for (i = 0; i < MAX_PDEV_CNT && soc->pdev_list[i]; i++) { 737 pdev = soc->pdev_list[i]; 738 if (qdf_unlikely(vdev->proxysta_vdev)) { 739 /* In qwrap isolation mode, allow loopback packets as all 740 * packets go to RootAP and Loopback on the mpsta. 741 */ 742 if (vdev->isolation_vdev) 743 return false; 744 TAILQ_FOREACH(psta_vdev, &pdev->vdev_list, vdev_list_elem) { 745 if (qdf_unlikely(psta_vdev->proxysta_vdev && 746 !qdf_mem_cmp(psta_vdev->mac_addr.raw, 747 &data[DP_MAC_ADDR_LEN], DP_MAC_ADDR_LEN))) { 748 /* Drop packet if source address is equal to 749 * any of the vdev addresses. 750 */ 751 return true; 752 } 753 } 754 } 755 } 756 return false; 757 } 758 #else 759 static inline bool check_qwrap_multicast_loopback(struct dp_vdev *vdev, 760 qdf_nbuf_t nbuf) 761 { 762 return false; 763 } 764 #endif 765 766 /* 767 * dp_rx_buffers_replenish() - replenish rxdma ring with rx nbufs 768 * called during dp rx initialization 769 * and at the end of dp_rx_process. 770 * 771 * @soc: core txrx main context 772 * @mac_id: mac_id which is one of 3 mac_ids 773 * @dp_rxdma_srng: dp rxdma circular ring 774 * @rx_desc_pool: Pointer to free Rx descriptor pool 775 * @num_req_buffers: number of buffer to be replenished 776 * @desc_list: list of descs if called from dp_rx_process 777 * or NULL during dp rx initialization or out of buffer 778 * interrupt. 779 * @tail: tail of descs list 780 * Return: return success or failure 781 */ 782 QDF_STATUS dp_rx_buffers_replenish(struct dp_soc *dp_soc, uint32_t mac_id, 783 struct dp_srng *dp_rxdma_srng, 784 struct rx_desc_pool *rx_desc_pool, 785 uint32_t num_req_buffers, 786 union dp_rx_desc_list_elem_t **desc_list, 787 union dp_rx_desc_list_elem_t **tail); 788 789 /** 790 * dp_rx_link_desc_return() - Return a MPDU link descriptor to HW 791 * (WBM), following error handling 792 * 793 * @soc: core DP main context 794 * @buf_addr_info: opaque pointer to the REO error ring descriptor 795 * @buf_addr_info: void pointer to the buffer_addr_info 796 * @bm_action: put to idle_list or release to msdu_list 797 * Return: QDF_STATUS 798 */ 799 QDF_STATUS 800 dp_rx_link_desc_return(struct dp_soc *soc, void *ring_desc, uint8_t bm_action); 801 802 QDF_STATUS 803 dp_rx_link_desc_buf_return(struct dp_soc *soc, struct dp_srng *dp_rxdma_srng, 804 void *buf_addr_info, uint8_t bm_action); 805 /** 806 * dp_rx_link_desc_return_by_addr - Return a MPDU link descriptor to 807 * (WBM) by address 808 * 809 * @soc: core DP main context 810 * @link_desc_addr: link descriptor addr 811 * 812 * Return: QDF_STATUS 813 */ 814 QDF_STATUS 815 dp_rx_link_desc_return_by_addr(struct dp_soc *soc, void *link_desc_addr, 816 uint8_t bm_action); 817 818 uint32_t 819 dp_rxdma_err_process(struct dp_soc *soc, uint32_t mac_id, 820 uint32_t quota); 821 822 void dp_rx_fill_mesh_stats(struct dp_vdev *vdev, qdf_nbuf_t nbuf, 823 uint8_t *rx_tlv_hdr, struct dp_peer *peer); 824 QDF_STATUS dp_rx_filter_mesh_packets(struct dp_vdev *vdev, qdf_nbuf_t nbuf, 825 uint8_t *rx_tlv_hdr); 826 827 int dp_wds_rx_policy_check(uint8_t *rx_tlv_hdr, struct dp_vdev *vdev, 828 struct dp_peer *peer, int rx_mcast); 829 830 qdf_nbuf_t 831 dp_rx_nbuf_prepare(struct dp_soc *soc, struct dp_pdev *pdev); 832 833 #endif /* _DP_RX_H */ 834