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, uint8_t reo_ring_num, 319 uint32_t quota); 320 321 uint32_t dp_rx_err_process(struct dp_soc *soc, void *hal_ring, uint32_t quota); 322 323 uint32_t 324 dp_rx_wbm_err_process(struct dp_soc *soc, void *hal_ring, uint32_t quota); 325 326 /** 327 * dp_rx_sg_create() - create a frag_list for MSDUs which are spread across 328 * multiple nbufs. 329 * @nbuf: pointer to the first msdu of an amsdu. 330 * @rx_tlv_hdr: pointer to the start of RX TLV headers. 331 * 332 * This function implements the creation of RX frag_list for cases 333 * where an MSDU is spread across multiple nbufs. 334 * 335 * Return: returns the head nbuf which contains complete frag_list. 336 */ 337 qdf_nbuf_t dp_rx_sg_create(qdf_nbuf_t nbuf, uint8_t *rx_tlv_hdr); 338 339 QDF_STATUS dp_rx_desc_pool_alloc(struct dp_soc *soc, 340 uint32_t pool_id, 341 uint32_t pool_size, 342 struct rx_desc_pool *rx_desc_pool); 343 344 void dp_rx_desc_pool_free(struct dp_soc *soc, 345 uint32_t pool_id, 346 struct rx_desc_pool *rx_desc_pool); 347 348 void dp_rx_deliver_raw(struct dp_vdev *vdev, qdf_nbuf_t nbuf_list, 349 struct dp_peer *peer); 350 351 /** 352 * dp_rx_add_to_free_desc_list() - Adds to a local free descriptor list 353 * 354 * @head: pointer to the head of local free list 355 * @tail: pointer to the tail of local free list 356 * @new: new descriptor that is added to the free list 357 * 358 * Return: void: 359 */ 360 static inline 361 void dp_rx_add_to_free_desc_list(union dp_rx_desc_list_elem_t **head, 362 union dp_rx_desc_list_elem_t **tail, 363 struct dp_rx_desc *new) 364 { 365 qdf_assert(head && new); 366 367 new->nbuf = NULL; 368 new->in_use = 0; 369 new->unmapped = 0; 370 371 ((union dp_rx_desc_list_elem_t *)new)->next = *head; 372 *head = (union dp_rx_desc_list_elem_t *)new; 373 if (*tail == NULL) 374 *tail = *head; 375 376 } 377 378 /** 379 * dp_rx_wds_srcport_learn() - Add or update the STA PEER which 380 * is behind the WDS repeater. 381 * 382 * @soc: core txrx main context 383 * @rx_tlv_hdr: base address of RX TLV header 384 * @ta_peer: WDS repeater peer 385 * @nbuf: rx pkt 386 * 387 * Return: void: 388 */ 389 #ifdef FEATURE_WDS 390 static inline void 391 dp_rx_wds_srcport_learn(struct dp_soc *soc, 392 uint8_t *rx_tlv_hdr, 393 struct dp_peer *ta_peer, 394 qdf_nbuf_t nbuf) 395 { 396 uint16_t sa_sw_peer_id = hal_rx_msdu_end_sa_sw_peer_id_get(rx_tlv_hdr); 397 uint32_t flags = IEEE80211_NODE_F_WDS_HM; 398 uint32_t ret = 0; 399 uint8_t wds_src_mac[IEEE80211_ADDR_LEN]; 400 struct dp_peer *sa_peer; 401 struct dp_ast_entry *ast; 402 uint16_t sa_idx; 403 404 if (qdf_unlikely(!ta_peer)) 405 return; 406 407 /* For AP mode : Do wds source port learning only if it is a 408 * 4-address mpdu 409 * 410 * For STA mode : Frames from RootAP backend will be in 3-address mode, 411 * till RootAP does the WDS source port learning; Hence in repeater/STA 412 * mode, we enable learning even in 3-address mode , to avoid RootAP 413 * backbone getting wrongly learnt as MEC on repeater 414 */ 415 if (ta_peer->vdev->opmode != wlan_op_mode_sta) { 416 if (!(qdf_nbuf_is_rx_chfrag_start(nbuf) && 417 hal_rx_get_mpdu_mac_ad4_valid(rx_tlv_hdr))) 418 return; 419 } else { 420 /* For HKv2 Source port learing is not needed in STA mode 421 * as we have support in HW 422 */ 423 if (soc->ast_override_support) 424 return; 425 } 426 427 memcpy(wds_src_mac, (qdf_nbuf_data(nbuf) + IEEE80211_ADDR_LEN), 428 IEEE80211_ADDR_LEN); 429 430 if (qdf_unlikely(!hal_rx_msdu_end_sa_is_valid_get(rx_tlv_hdr))) { 431 ret = dp_peer_add_ast(soc, 432 ta_peer, 433 wds_src_mac, 434 CDP_TXRX_AST_TYPE_WDS, 435 flags); 436 return; 437 } 438 439 /* 440 * Get the AST entry from HW SA index and mark it as active 441 */ 442 sa_idx = hal_rx_msdu_end_sa_idx_get(rx_tlv_hdr); 443 444 qdf_spin_lock_bh(&soc->ast_lock); 445 ast = soc->ast_table[sa_idx]; 446 447 if (!ast) { 448 qdf_spin_unlock_bh(&soc->ast_lock); 449 return; 450 } 451 452 qdf_spin_unlock_bh(&soc->ast_lock); 453 454 if ((ast->type == CDP_TXRX_AST_TYPE_WDS_HM) || 455 (ast->type == CDP_TXRX_AST_TYPE_WDS_HM_SEC)) 456 return; 457 458 /* 459 * Ensure we are updating the right AST entry by 460 * validating ast_idx. 461 * There is a possibility we might arrive here without 462 * AST MAP event , so this check is mandatory 463 */ 464 if (ast->ast_idx == sa_idx) 465 ast->is_active = TRUE; 466 467 if (sa_sw_peer_id != ta_peer->peer_ids[0]) { 468 sa_peer = ast->peer; 469 470 if ((ast->type != CDP_TXRX_AST_TYPE_STATIC) && 471 (ast->type != CDP_TXRX_AST_TYPE_SELF) && 472 (ast->type != CDP_TXRX_AST_TYPE_STA_BSS)) { 473 if (ast->pdev_id != ta_peer->vdev->pdev->pdev_id) { 474 ret = dp_peer_add_ast(soc, 475 ta_peer, wds_src_mac, 476 CDP_TXRX_AST_TYPE_WDS, 477 flags); 478 } else { 479 qdf_spin_lock_bh(&soc->ast_lock); 480 dp_peer_update_ast(soc, ta_peer, ast, flags); 481 qdf_spin_unlock_bh(&soc->ast_lock); 482 return; 483 } 484 } 485 /* 486 * Do not kickout STA if it belongs to a different radio. 487 * For DBDC repeater, it is possible to arrive here 488 * for multicast loopback frames originated from connected 489 * clients and looped back (intrabss) by Root AP 490 */ 491 if (ast->pdev_id != ta_peer->vdev->pdev->pdev_id) { 492 return; 493 } 494 495 /* 496 * Kickout, when direct associated peer(SA) roams 497 * to another AP and reachable via TA peer 498 */ 499 if ((sa_peer->vdev->opmode == wlan_op_mode_ap) && 500 !sa_peer->delete_in_progress) { 501 sa_peer->delete_in_progress = true; 502 if (soc->cdp_soc.ol_ops->peer_sta_kickout) { 503 soc->cdp_soc.ol_ops->peer_sta_kickout( 504 sa_peer->vdev->pdev->ctrl_pdev, 505 wds_src_mac); 506 } 507 } 508 } 509 510 return; 511 } 512 #else 513 static inline void 514 dp_rx_wds_srcport_learn(struct dp_soc *soc, 515 uint8_t *rx_tlv_hdr, 516 struct dp_peer *ta_peer, 517 qdf_nbuf_t nbuf) 518 { 519 } 520 #endif 521 522 uint8_t dp_rx_process_invalid_peer(struct dp_soc *soc, qdf_nbuf_t nbuf); 523 void dp_rx_process_invalid_peer_wrapper(struct dp_soc *soc, 524 qdf_nbuf_t mpdu, bool mpdu_done); 525 void dp_rx_process_mic_error(struct dp_soc *soc, qdf_nbuf_t nbuf, 526 uint8_t *rx_tlv_hdr, struct dp_peer *peer); 527 528 #define DP_RX_LIST_APPEND(head, tail, elem) \ 529 do { \ 530 if (!(head)) { \ 531 (head) = (elem); \ 532 QDF_NBUF_CB_RX_NUM_ELEMENTS_IN_LIST(head) = 1;\ 533 } else { \ 534 qdf_nbuf_set_next((tail), (elem)); \ 535 QDF_NBUF_CB_RX_NUM_ELEMENTS_IN_LIST(head)++; \ 536 } \ 537 (tail) = (elem); \ 538 qdf_nbuf_set_next((tail), NULL); \ 539 } while (0) 540 541 #ifndef BUILD_X86 542 static inline int check_x86_paddr(struct dp_soc *dp_soc, qdf_nbuf_t *rx_netbuf, 543 qdf_dma_addr_t *paddr, struct dp_pdev *pdev) 544 { 545 return QDF_STATUS_SUCCESS; 546 } 547 #else 548 #define MAX_RETRY 100 549 static inline int check_x86_paddr(struct dp_soc *dp_soc, qdf_nbuf_t *rx_netbuf, 550 qdf_dma_addr_t *paddr, struct dp_pdev *pdev) 551 { 552 uint32_t nbuf_retry = 0; 553 int32_t ret; 554 const uint32_t x86_phy_addr = 0x50000000; 555 /* 556 * in M2M emulation platforms (x86) the memory below 0x50000000 557 * is reserved for target use, so any memory allocated in this 558 * region should not be used by host 559 */ 560 do { 561 if (qdf_likely(*paddr > x86_phy_addr)) 562 return QDF_STATUS_SUCCESS; 563 else { 564 QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_INFO, 565 "phy addr %pK exceeded 0x50000000 trying again", 566 paddr); 567 568 nbuf_retry++; 569 if ((*rx_netbuf)) { 570 qdf_nbuf_unmap_single(dp_soc->osdev, *rx_netbuf, 571 QDF_DMA_BIDIRECTIONAL); 572 /* Not freeing buffer intentionally. 573 * Observed that same buffer is getting 574 * re-allocated resulting in longer load time 575 * WMI init timeout. 576 * This buffer is anyway not useful so skip it. 577 **/ 578 } 579 580 *rx_netbuf = qdf_nbuf_alloc(dp_soc->osdev, 581 RX_BUFFER_SIZE, 582 RX_BUFFER_RESERVATION, 583 RX_BUFFER_ALIGNMENT, 584 FALSE); 585 586 if (qdf_unlikely(!(*rx_netbuf))) 587 return QDF_STATUS_E_FAILURE; 588 589 ret = qdf_nbuf_map_single(dp_soc->osdev, *rx_netbuf, 590 QDF_DMA_BIDIRECTIONAL); 591 592 if (qdf_unlikely(ret == QDF_STATUS_E_FAILURE)) { 593 qdf_nbuf_free(*rx_netbuf); 594 *rx_netbuf = NULL; 595 continue; 596 } 597 598 *paddr = qdf_nbuf_get_frag_paddr(*rx_netbuf, 0); 599 } 600 } while (nbuf_retry < MAX_RETRY); 601 602 if ((*rx_netbuf)) { 603 qdf_nbuf_unmap_single(dp_soc->osdev, *rx_netbuf, 604 QDF_DMA_BIDIRECTIONAL); 605 qdf_nbuf_free(*rx_netbuf); 606 } 607 608 return QDF_STATUS_E_FAILURE; 609 } 610 #endif 611 612 /** 613 * dp_rx_cookie_2_link_desc_va() - Converts cookie to a virtual address of 614 * the MSDU Link Descriptor 615 * @soc: core txrx main context 616 * @buf_info: buf_info include cookie that used to lookup virtual address of 617 * link descriptor Normally this is just an index into a per SOC array. 618 * 619 * This is the VA of the link descriptor, that HAL layer later uses to 620 * retrieve the list of MSDU's for a given MPDU. 621 * 622 * Return: void *: Virtual Address of the Rx descriptor 623 */ 624 static inline 625 void *dp_rx_cookie_2_link_desc_va(struct dp_soc *soc, 626 struct hal_buf_info *buf_info) 627 { 628 void *link_desc_va; 629 uint32_t bank_id = LINK_DESC_COOKIE_BANK_ID(buf_info->sw_cookie); 630 631 632 /* TODO */ 633 /* Add sanity for cookie */ 634 635 link_desc_va = soc->link_desc_banks[bank_id].base_vaddr + 636 (buf_info->paddr - 637 soc->link_desc_banks[bank_id].base_paddr); 638 639 return link_desc_va; 640 } 641 642 /** 643 * dp_rx_cookie_2_mon_link_desc_va() - Converts cookie to a virtual address of 644 * the MSDU Link Descriptor 645 * @pdev: core txrx pdev context 646 * @buf_info: buf_info includes cookie that used to lookup virtual address of 647 * link descriptor. Normally this is just an index into a per pdev array. 648 * 649 * This is the VA of the link descriptor in monitor mode destination ring, 650 * that HAL layer later uses to retrieve the list of MSDU's for a given MPDU. 651 * 652 * Return: void *: Virtual Address of the Rx descriptor 653 */ 654 static inline 655 void *dp_rx_cookie_2_mon_link_desc_va(struct dp_pdev *pdev, 656 struct hal_buf_info *buf_info, 657 int mac_id) 658 { 659 void *link_desc_va; 660 int mac_for_pdev = dp_get_mac_id_for_mac(pdev->soc, mac_id); 661 662 /* TODO */ 663 /* Add sanity for cookie */ 664 665 link_desc_va = 666 pdev->link_desc_banks[mac_for_pdev][buf_info->sw_cookie].base_vaddr + 667 (buf_info->paddr - 668 pdev->link_desc_banks[mac_for_pdev][buf_info->sw_cookie].base_paddr); 669 670 return link_desc_va; 671 } 672 673 /** 674 * dp_rx_defrag_concat() - Concatenate the fragments 675 * 676 * @dst: destination pointer to the buffer 677 * @src: source pointer from where the fragment payload is to be copied 678 * 679 * Return: QDF_STATUS 680 */ 681 static inline QDF_STATUS dp_rx_defrag_concat(qdf_nbuf_t dst, qdf_nbuf_t src) 682 { 683 /* 684 * Inside qdf_nbuf_cat, if it is necessary to reallocate dst 685 * to provide space for src, the headroom portion is copied from 686 * the original dst buffer to the larger new dst buffer. 687 * (This is needed, because the headroom of the dst buffer 688 * contains the rx desc.) 689 */ 690 if (qdf_nbuf_cat(dst, src)) 691 return QDF_STATUS_E_DEFRAG_ERROR; 692 693 return QDF_STATUS_SUCCESS; 694 } 695 696 /* 697 * dp_rx_ast_set_active() - set the active flag of the astentry 698 * corresponding to a hw index. 699 * @soc: core txrx main context 700 * @sa_idx: hw idx 701 * @is_active: active flag 702 * 703 */ 704 #ifdef FEATURE_WDS 705 static inline QDF_STATUS dp_rx_ast_set_active(struct dp_soc *soc, uint16_t sa_idx, bool is_active) 706 { 707 struct dp_ast_entry *ast; 708 qdf_spin_lock_bh(&soc->ast_lock); 709 ast = soc->ast_table[sa_idx]; 710 711 /* 712 * Ensure we are updating the right AST entry by 713 * validating ast_idx. 714 * There is a possibility we might arrive here without 715 * AST MAP event , so this check is mandatory 716 */ 717 if (ast && (ast->ast_idx == sa_idx)) { 718 ast->is_active = is_active; 719 qdf_spin_unlock_bh(&soc->ast_lock); 720 return QDF_STATUS_SUCCESS; 721 } 722 723 qdf_spin_unlock_bh(&soc->ast_lock); 724 return QDF_STATUS_E_FAILURE; 725 } 726 #else 727 static inline QDF_STATUS dp_rx_ast_set_active(struct dp_soc *soc, uint16_t sa_idx, bool is_active) 728 { 729 return QDF_STATUS_SUCCESS; 730 } 731 #endif 732 733 /* 734 * check_qwrap_multicast_loopback() - Check if rx packet is a loopback packet. 735 * In qwrap mode, packets originated from 736 * any vdev should not loopback and 737 * should be dropped. 738 * @vdev: vdev on which rx packet is received 739 * @nbuf: rx pkt 740 * 741 */ 742 #if ATH_SUPPORT_WRAP 743 static inline bool check_qwrap_multicast_loopback(struct dp_vdev *vdev, 744 qdf_nbuf_t nbuf) 745 { 746 struct dp_vdev *psta_vdev; 747 struct dp_pdev *pdev = vdev->pdev; 748 struct dp_soc *soc = pdev->soc; 749 uint8_t *data = qdf_nbuf_data(nbuf); 750 uint8_t i; 751 752 for (i = 0; i < MAX_PDEV_CNT && soc->pdev_list[i]; i++) { 753 pdev = soc->pdev_list[i]; 754 if (qdf_unlikely(vdev->proxysta_vdev)) { 755 /* In qwrap isolation mode, allow loopback packets as all 756 * packets go to RootAP and Loopback on the mpsta. 757 */ 758 if (vdev->isolation_vdev) 759 return false; 760 TAILQ_FOREACH(psta_vdev, &pdev->vdev_list, vdev_list_elem) { 761 if (qdf_unlikely(psta_vdev->proxysta_vdev && 762 !qdf_mem_cmp(psta_vdev->mac_addr.raw, 763 &data[DP_MAC_ADDR_LEN], DP_MAC_ADDR_LEN))) { 764 /* Drop packet if source address is equal to 765 * any of the vdev addresses. 766 */ 767 return true; 768 } 769 } 770 } 771 } 772 return false; 773 } 774 #else 775 static inline bool check_qwrap_multicast_loopback(struct dp_vdev *vdev, 776 qdf_nbuf_t nbuf) 777 { 778 return false; 779 } 780 #endif 781 782 /* 783 * dp_rx_buffers_replenish() - replenish rxdma ring with rx nbufs 784 * called during dp rx initialization 785 * and at the end of dp_rx_process. 786 * 787 * @soc: core txrx main context 788 * @mac_id: mac_id which is one of 3 mac_ids 789 * @dp_rxdma_srng: dp rxdma circular ring 790 * @rx_desc_pool: Pointer to free Rx descriptor pool 791 * @num_req_buffers: number of buffer to be replenished 792 * @desc_list: list of descs if called from dp_rx_process 793 * or NULL during dp rx initialization or out of buffer 794 * interrupt. 795 * @tail: tail of descs list 796 * Return: return success or failure 797 */ 798 QDF_STATUS dp_rx_buffers_replenish(struct dp_soc *dp_soc, uint32_t mac_id, 799 struct dp_srng *dp_rxdma_srng, 800 struct rx_desc_pool *rx_desc_pool, 801 uint32_t num_req_buffers, 802 union dp_rx_desc_list_elem_t **desc_list, 803 union dp_rx_desc_list_elem_t **tail); 804 805 /** 806 * dp_rx_link_desc_return() - Return a MPDU link descriptor to HW 807 * (WBM), following error handling 808 * 809 * @soc: core DP main context 810 * @buf_addr_info: opaque pointer to the REO error ring descriptor 811 * @buf_addr_info: void pointer to the buffer_addr_info 812 * @bm_action: put to idle_list or release to msdu_list 813 * Return: QDF_STATUS 814 */ 815 QDF_STATUS 816 dp_rx_link_desc_return(struct dp_soc *soc, void *ring_desc, uint8_t bm_action); 817 818 QDF_STATUS 819 dp_rx_link_desc_buf_return(struct dp_soc *soc, struct dp_srng *dp_rxdma_srng, 820 void *buf_addr_info, uint8_t bm_action); 821 /** 822 * dp_rx_link_desc_return_by_addr - Return a MPDU link descriptor to 823 * (WBM) by address 824 * 825 * @soc: core DP main context 826 * @link_desc_addr: link descriptor addr 827 * 828 * Return: QDF_STATUS 829 */ 830 QDF_STATUS 831 dp_rx_link_desc_return_by_addr(struct dp_soc *soc, void *link_desc_addr, 832 uint8_t bm_action); 833 834 uint32_t 835 dp_rxdma_err_process(struct dp_soc *soc, uint32_t mac_id, 836 uint32_t quota); 837 838 void dp_rx_fill_mesh_stats(struct dp_vdev *vdev, qdf_nbuf_t nbuf, 839 uint8_t *rx_tlv_hdr, struct dp_peer *peer); 840 QDF_STATUS dp_rx_filter_mesh_packets(struct dp_vdev *vdev, qdf_nbuf_t nbuf, 841 uint8_t *rx_tlv_hdr); 842 843 int dp_wds_rx_policy_check(uint8_t *rx_tlv_hdr, struct dp_vdev *vdev, 844 struct dp_peer *peer, int rx_mcast); 845 846 qdf_nbuf_t 847 dp_rx_nbuf_prepare(struct dp_soc *soc, struct dp_pdev *pdev); 848 849 #endif /* _DP_RX_H */ 850