1 /* 2 * Copyright (c) 2016-2020 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 #ifndef RX_DATA_BUFFER_ALIGNMENT 29 #define RX_DATA_BUFFER_ALIGNMENT 128 30 #endif 31 #ifndef RX_MONITOR_BUFFER_ALIGNMENT 32 #define RX_MONITOR_BUFFER_ALIGNMENT 128 33 #endif 34 #else /* RXDMA_OPTIMIZATION */ 35 #define RX_DATA_BUFFER_ALIGNMENT 4 36 #define RX_MONITOR_BUFFER_ALIGNMENT 4 37 #endif /* RXDMA_OPTIMIZATION */ 38 39 #ifdef QCA_HOST2FW_RXBUF_RING 40 #define DP_WBM2SW_RBM HAL_RX_BUF_RBM_SW1_BM 41 /* RBM value used for re-injecting defragmented packets into REO */ 42 #define DP_DEFRAG_RBM HAL_RX_BUF_RBM_SW3_BM 43 #else 44 #define DP_WBM2SW_RBM HAL_RX_BUF_RBM_SW3_BM 45 #define DP_DEFRAG_RBM DP_WBM2SW_RBM 46 #endif /* QCA_HOST2FW_RXBUF_RING */ 47 48 #define RX_BUFFER_RESERVATION 0 49 50 #define DP_PEER_METADATA_PEER_ID_MASK 0x0000ffff 51 #define DP_PEER_METADATA_PEER_ID_SHIFT 0 52 #define DP_PEER_METADATA_VDEV_ID_MASK 0x003f0000 53 #define DP_PEER_METADATA_VDEV_ID_SHIFT 16 54 55 #define DP_PEER_METADATA_PEER_ID_GET(_peer_metadata) \ 56 (((_peer_metadata) & DP_PEER_METADATA_PEER_ID_MASK) \ 57 >> DP_PEER_METADATA_PEER_ID_SHIFT) 58 59 #define DP_PEER_METADATA_VDEV_ID_GET(_peer_metadata) \ 60 (((_peer_metadata) & DP_PEER_METADATA_VDEV_ID_MASK) \ 61 >> DP_PEER_METADATA_VDEV_ID_SHIFT) 62 63 #define DP_RX_DESC_MAGIC 0xdec0de 64 65 /** 66 * enum dp_rx_desc_state 67 * 68 * @RX_DESC_REPLENISH: rx desc replenished 69 * @RX_DESC_FREELIST: rx desc in freelist 70 */ 71 enum dp_rx_desc_state { 72 RX_DESC_REPLENISHED, 73 RX_DESC_IN_FREELIST, 74 }; 75 76 /** 77 * struct dp_rx_desc_dbg_info 78 * 79 * @freelist_caller: name of the function that put the 80 * the rx desc in freelist 81 * @freelist_ts: timestamp when the rx desc is put in 82 * a freelist 83 * @replenish_caller: name of the function that last 84 * replenished the rx desc 85 * @replenish_ts: last replenish timestamp 86 */ 87 struct dp_rx_desc_dbg_info { 88 char freelist_caller[QDF_MEM_FUNC_NAME_SIZE]; 89 uint64_t freelist_ts; 90 char replenish_caller[QDF_MEM_FUNC_NAME_SIZE]; 91 uint64_t replenish_ts; 92 }; 93 94 /** 95 * struct dp_rx_desc 96 * 97 * @nbuf : VA of the "skb" posted 98 * @rx_buf_start : VA of the original Rx buffer, before 99 * movement of any skb->data pointer 100 * @paddr_buf_start : PA of the original Rx buffer, before 101 * movement of any frag pointer 102 * @cookie : index into the sw array which holds 103 * the sw Rx descriptors 104 * Cookie space is 21 bits: 105 * lower 18 bits -- index 106 * upper 3 bits -- pool_id 107 * @pool_id : pool Id for which this allocated. 108 * Can only be used if there is no flow 109 * steering 110 * @in_use rx_desc is in use 111 * @unmapped used to mark rx_desc an unmapped if the corresponding 112 * nbuf is already unmapped 113 * @in_err_state : Nbuf sanity failed for this descriptor. 114 */ 115 struct dp_rx_desc { 116 qdf_nbuf_t nbuf; 117 uint8_t *rx_buf_start; 118 qdf_dma_addr_t paddr_buf_start; 119 uint32_t cookie; 120 uint8_t pool_id; 121 #ifdef RX_DESC_DEBUG_CHECK 122 uint32_t magic; 123 struct dp_rx_desc_dbg_info *dbg_info; 124 #endif 125 uint8_t in_use:1, 126 unmapped:1, 127 in_err_state:1; 128 }; 129 130 /* RX Descriptor Multi Page memory alloc related */ 131 #define DP_RX_DESC_OFFSET_NUM_BITS 8 132 #define DP_RX_DESC_PAGE_ID_NUM_BITS 8 133 #define DP_RX_DESC_POOL_ID_NUM_BITS 4 134 135 #define DP_RX_DESC_PAGE_ID_SHIFT DP_RX_DESC_OFFSET_NUM_BITS 136 #define DP_RX_DESC_POOL_ID_SHIFT \ 137 (DP_RX_DESC_OFFSET_NUM_BITS + DP_RX_DESC_PAGE_ID_NUM_BITS) 138 #define RX_DESC_MULTI_PAGE_COOKIE_POOL_ID_MASK \ 139 (((1 << DP_RX_DESC_POOL_ID_NUM_BITS) - 1) << DP_RX_DESC_POOL_ID_SHIFT) 140 #define RX_DESC_MULTI_PAGE_COOKIE_PAGE_ID_MASK \ 141 (((1 << DP_RX_DESC_PAGE_ID_NUM_BITS) - 1) << \ 142 DP_RX_DESC_PAGE_ID_SHIFT) 143 #define RX_DESC_MULTI_PAGE_COOKIE_OFFSET_MASK \ 144 ((1 << DP_RX_DESC_OFFSET_NUM_BITS) - 1) 145 #define DP_RX_DESC_MULTI_PAGE_COOKIE_GET_POOL_ID(_cookie) \ 146 (((_cookie) & RX_DESC_MULTI_PAGE_COOKIE_POOL_ID_MASK) >> \ 147 DP_RX_DESC_POOL_ID_SHIFT) 148 #define DP_RX_DESC_MULTI_PAGE_COOKIE_GET_PAGE_ID(_cookie) \ 149 (((_cookie) & RX_DESC_MULTI_PAGE_COOKIE_PAGE_ID_MASK) >> \ 150 DP_RX_DESC_PAGE_ID_SHIFT) 151 #define DP_RX_DESC_MULTI_PAGE_COOKIE_GET_OFFSET(_cookie) \ 152 ((_cookie) & RX_DESC_MULTI_PAGE_COOKIE_OFFSET_MASK) 153 154 #define RX_DESC_COOKIE_INDEX_SHIFT 0 155 #define RX_DESC_COOKIE_INDEX_MASK 0x3ffff /* 18 bits */ 156 #define RX_DESC_COOKIE_POOL_ID_SHIFT 18 157 #define RX_DESC_COOKIE_POOL_ID_MASK 0x1c0000 158 159 #define DP_RX_DESC_COOKIE_MAX \ 160 (RX_DESC_COOKIE_INDEX_MASK | RX_DESC_COOKIE_POOL_ID_MASK) 161 162 #define DP_RX_DESC_COOKIE_POOL_ID_GET(_cookie) \ 163 (((_cookie) & RX_DESC_COOKIE_POOL_ID_MASK) >> \ 164 RX_DESC_COOKIE_POOL_ID_SHIFT) 165 166 #define DP_RX_DESC_COOKIE_INDEX_GET(_cookie) \ 167 (((_cookie) & RX_DESC_COOKIE_INDEX_MASK) >> \ 168 RX_DESC_COOKIE_INDEX_SHIFT) 169 170 #define dp_rx_add_to_free_desc_list(head, tail, new) \ 171 __dp_rx_add_to_free_desc_list(head, tail, new, __func__) 172 173 #define dp_rx_buffers_replenish(soc, mac_id, rxdma_srng, rx_desc_pool, \ 174 num_buffers, desc_list, tail) \ 175 __dp_rx_buffers_replenish(soc, mac_id, rxdma_srng, rx_desc_pool, \ 176 num_buffers, desc_list, tail, __func__) 177 178 #ifdef DP_RX_SPECIAL_FRAME_NEED 179 /** 180 * dp_rx_is_special_frame() - check is RX frame special needed 181 * 182 * @nbuf: RX skb pointer 183 * @frame_mask: the mask for speical frame needed 184 * 185 * Check is RX frame wanted matched with mask 186 * 187 * Return: true - special frame needed, false - no 188 */ 189 static inline 190 bool dp_rx_is_special_frame(qdf_nbuf_t nbuf, uint32_t frame_mask) 191 { 192 if (((frame_mask & FRAME_MASK_IPV4_ARP) && 193 qdf_nbuf_is_ipv4_arp_pkt(nbuf)) || 194 ((frame_mask & FRAME_MASK_IPV4_DHCP) && 195 qdf_nbuf_is_ipv4_dhcp_pkt(nbuf)) || 196 ((frame_mask & FRAME_MASK_IPV4_EAPOL) && 197 qdf_nbuf_is_ipv4_eapol_pkt(nbuf)) || 198 ((frame_mask & FRAME_MASK_IPV6_DHCP) && 199 qdf_nbuf_is_ipv6_dhcp_pkt(nbuf))) 200 return true; 201 202 return false; 203 } 204 205 /** 206 * dp_rx_deliver_special_frame() - Deliver the RX special frame to stack 207 * if matches mask 208 * 209 * @soc: Datapath soc handler 210 * @peer: pointer to DP peer 211 * @nbuf: pointer to the skb of RX frame 212 * @frame_mask: the mask for speical frame needed 213 * @rx_tlv_hdr: start of rx tlv header 214 * 215 * note: Msdu_len must have been stored in QDF_NBUF_CB_RX_PKT_LEN(nbuf) and 216 * single nbuf is expected. 217 * 218 * return: true - nbuf has been delivered to stack, false - not. 219 */ 220 bool dp_rx_deliver_special_frame(struct dp_soc *soc, struct dp_peer *peer, 221 qdf_nbuf_t nbuf, uint32_t frame_mask, 222 uint8_t *rx_tlv_hdr); 223 #else 224 static inline 225 bool dp_rx_is_special_frame(qdf_nbuf_t nbuf, uint32_t frame_mask) 226 { 227 return false; 228 } 229 230 static inline 231 bool dp_rx_deliver_special_frame(struct dp_soc *soc, struct dp_peer *peer, 232 qdf_nbuf_t nbuf, uint32_t frame_mask, 233 uint8_t *rx_tlv_hdr) 234 { 235 return false; 236 } 237 #endif 238 239 /* DOC: Offset to obtain LLC hdr 240 * 241 * In the case of Wifi parse error 242 * to reach LLC header from beginning 243 * of VLAN tag we need to skip 8 bytes. 244 * Vlan_tag(4)+length(2)+length added 245 * by HW(2) = 8 bytes. 246 */ 247 #define DP_SKIP_VLAN 8 248 249 /** 250 * struct dp_rx_cached_buf - rx cached buffer 251 * @list: linked list node 252 * @buf: skb buffer 253 */ 254 struct dp_rx_cached_buf { 255 qdf_list_node_t node; 256 qdf_nbuf_t buf; 257 }; 258 259 /* 260 *dp_rx_xor_block() - xor block of data 261 *@b: destination data block 262 *@a: source data block 263 *@len: length of the data to process 264 * 265 *Returns: None 266 */ 267 static inline void dp_rx_xor_block(uint8_t *b, const uint8_t *a, qdf_size_t len) 268 { 269 qdf_size_t i; 270 271 for (i = 0; i < len; i++) 272 b[i] ^= a[i]; 273 } 274 275 /* 276 *dp_rx_rotl() - rotate the bits left 277 *@val: unsigned integer input value 278 *@bits: number of bits 279 * 280 *Returns: Integer with left rotated by number of 'bits' 281 */ 282 static inline uint32_t dp_rx_rotl(uint32_t val, int bits) 283 { 284 return (val << bits) | (val >> (32 - bits)); 285 } 286 287 /* 288 *dp_rx_rotr() - rotate the bits right 289 *@val: unsigned integer input value 290 *@bits: number of bits 291 * 292 *Returns: Integer with right rotated by number of 'bits' 293 */ 294 static inline uint32_t dp_rx_rotr(uint32_t val, int bits) 295 { 296 return (val >> bits) | (val << (32 - bits)); 297 } 298 299 /* 300 * dp_set_rx_queue() - set queue_mapping in skb 301 * @nbuf: skb 302 * @queue_id: rx queue_id 303 * 304 * Return: void 305 */ 306 #ifdef QCA_OL_RX_MULTIQ_SUPPORT 307 static inline void dp_set_rx_queue(qdf_nbuf_t nbuf, uint8_t queue_id) 308 { 309 qdf_nbuf_record_rx_queue(nbuf, queue_id); 310 return; 311 } 312 #else 313 static inline void dp_set_rx_queue(qdf_nbuf_t nbuf, uint8_t queue_id) 314 { 315 } 316 #endif 317 318 /* 319 *dp_rx_xswap() - swap the bits left 320 *@val: unsigned integer input value 321 * 322 *Returns: Integer with bits swapped 323 */ 324 static inline uint32_t dp_rx_xswap(uint32_t val) 325 { 326 return ((val & 0x00ff00ff) << 8) | ((val & 0xff00ff00) >> 8); 327 } 328 329 /* 330 *dp_rx_get_le32_split() - get little endian 32 bits split 331 *@b0: byte 0 332 *@b1: byte 1 333 *@b2: byte 2 334 *@b3: byte 3 335 * 336 *Returns: Integer with split little endian 32 bits 337 */ 338 static inline uint32_t dp_rx_get_le32_split(uint8_t b0, uint8_t b1, uint8_t b2, 339 uint8_t b3) 340 { 341 return b0 | (b1 << 8) | (b2 << 16) | (b3 << 24); 342 } 343 344 /* 345 *dp_rx_get_le32() - get little endian 32 bits 346 *@b0: byte 0 347 *@b1: byte 1 348 *@b2: byte 2 349 *@b3: byte 3 350 * 351 *Returns: Integer with little endian 32 bits 352 */ 353 static inline uint32_t dp_rx_get_le32(const uint8_t *p) 354 { 355 return dp_rx_get_le32_split(p[0], p[1], p[2], p[3]); 356 } 357 358 /* 359 * dp_rx_put_le32() - put little endian 32 bits 360 * @p: destination char array 361 * @v: source 32-bit integer 362 * 363 * Returns: None 364 */ 365 static inline void dp_rx_put_le32(uint8_t *p, uint32_t v) 366 { 367 p[0] = (v) & 0xff; 368 p[1] = (v >> 8) & 0xff; 369 p[2] = (v >> 16) & 0xff; 370 p[3] = (v >> 24) & 0xff; 371 } 372 373 /* Extract michal mic block of data */ 374 #define dp_rx_michael_block(l, r) \ 375 do { \ 376 r ^= dp_rx_rotl(l, 17); \ 377 l += r; \ 378 r ^= dp_rx_xswap(l); \ 379 l += r; \ 380 r ^= dp_rx_rotl(l, 3); \ 381 l += r; \ 382 r ^= dp_rx_rotr(l, 2); \ 383 l += r; \ 384 } while (0) 385 386 /** 387 * struct dp_rx_desc_list_elem_t 388 * 389 * @next : Next pointer to form free list 390 * @rx_desc : DP Rx descriptor 391 */ 392 union dp_rx_desc_list_elem_t { 393 union dp_rx_desc_list_elem_t *next; 394 struct dp_rx_desc rx_desc; 395 }; 396 397 #ifdef RX_DESC_MULTI_PAGE_ALLOC 398 /** 399 * dp_rx_desc_find() - find dp rx descriptor from page ID and offset 400 * @page_id: Page ID 401 * @offset: Offset of the descriptor element 402 * 403 * Return: RX descriptor element 404 */ 405 union dp_rx_desc_list_elem_t *dp_rx_desc_find(uint16_t page_id, uint16_t offset, 406 struct rx_desc_pool *rx_pool); 407 408 static inline 409 struct dp_rx_desc *dp_get_rx_desc_from_cookie(struct dp_soc *soc, 410 struct rx_desc_pool *pool, 411 uint32_t cookie) 412 { 413 uint8_t pool_id = DP_RX_DESC_MULTI_PAGE_COOKIE_GET_POOL_ID(cookie); 414 uint16_t page_id = DP_RX_DESC_MULTI_PAGE_COOKIE_GET_PAGE_ID(cookie); 415 uint8_t offset = DP_RX_DESC_MULTI_PAGE_COOKIE_GET_OFFSET(cookie); 416 struct rx_desc_pool *rx_desc_pool; 417 union dp_rx_desc_list_elem_t *rx_desc_elem; 418 419 if (qdf_unlikely(pool_id >= MAX_RXDESC_POOLS)) 420 return NULL; 421 422 rx_desc_pool = &pool[pool_id]; 423 rx_desc_elem = (union dp_rx_desc_list_elem_t *) 424 (rx_desc_pool->desc_pages.cacheable_pages[page_id] + 425 rx_desc_pool->elem_size * offset); 426 427 return &rx_desc_elem->rx_desc; 428 } 429 430 /** 431 * dp_rx_cookie_2_va_rxdma_buf() - Converts cookie to a virtual address of 432 * the Rx descriptor on Rx DMA source ring buffer 433 * @soc: core txrx main context 434 * @cookie: cookie used to lookup virtual address 435 * 436 * Return: Pointer to the Rx descriptor 437 */ 438 static inline 439 struct dp_rx_desc *dp_rx_cookie_2_va_rxdma_buf(struct dp_soc *soc, 440 uint32_t cookie) 441 { 442 return dp_get_rx_desc_from_cookie(soc, &soc->rx_desc_buf[0], cookie); 443 } 444 445 /** 446 * dp_rx_cookie_2_va_mon_buf() - Converts cookie to a virtual address of 447 * the Rx descriptor on monitor ring buffer 448 * @soc: core txrx main context 449 * @cookie: cookie used to lookup virtual address 450 * 451 * Return: Pointer to the Rx descriptor 452 */ 453 static inline 454 struct dp_rx_desc *dp_rx_cookie_2_va_mon_buf(struct dp_soc *soc, 455 uint32_t cookie) 456 { 457 return dp_get_rx_desc_from_cookie(soc, &soc->rx_desc_mon[0], cookie); 458 } 459 460 /** 461 * dp_rx_cookie_2_va_mon_status() - Converts cookie to a virtual address of 462 * the Rx descriptor on monitor status ring buffer 463 * @soc: core txrx main context 464 * @cookie: cookie used to lookup virtual address 465 * 466 * Return: Pointer to the Rx descriptor 467 */ 468 static inline 469 struct dp_rx_desc *dp_rx_cookie_2_va_mon_status(struct dp_soc *soc, 470 uint32_t cookie) 471 { 472 return dp_get_rx_desc_from_cookie(soc, &soc->rx_desc_status[0], cookie); 473 } 474 #else 475 476 void dp_rx_desc_pool_init(struct dp_soc *soc, uint32_t pool_id, 477 uint32_t pool_size, 478 struct rx_desc_pool *rx_desc_pool); 479 480 /** 481 * dp_rx_cookie_2_va_rxdma_buf() - Converts cookie to a virtual address of 482 * the Rx descriptor on Rx DMA source ring buffer 483 * @soc: core txrx main context 484 * @cookie: cookie used to lookup virtual address 485 * 486 * Return: void *: Virtual Address of the Rx descriptor 487 */ 488 static inline 489 void *dp_rx_cookie_2_va_rxdma_buf(struct dp_soc *soc, uint32_t cookie) 490 { 491 uint8_t pool_id = DP_RX_DESC_COOKIE_POOL_ID_GET(cookie); 492 uint16_t index = DP_RX_DESC_COOKIE_INDEX_GET(cookie); 493 struct rx_desc_pool *rx_desc_pool; 494 495 if (qdf_unlikely(pool_id >= MAX_RXDESC_POOLS)) 496 return NULL; 497 498 rx_desc_pool = &soc->rx_desc_buf[pool_id]; 499 500 if (qdf_unlikely(index >= rx_desc_pool->pool_size)) 501 return NULL; 502 503 return &(soc->rx_desc_buf[pool_id].array[index].rx_desc); 504 } 505 506 /** 507 * dp_rx_cookie_2_va_mon_buf() - Converts cookie to a virtual address of 508 * the Rx descriptor on monitor ring buffer 509 * @soc: core txrx main context 510 * @cookie: cookie used to lookup virtual address 511 * 512 * Return: void *: Virtual Address of the Rx descriptor 513 */ 514 static inline 515 void *dp_rx_cookie_2_va_mon_buf(struct dp_soc *soc, uint32_t cookie) 516 { 517 uint8_t pool_id = DP_RX_DESC_COOKIE_POOL_ID_GET(cookie); 518 uint16_t index = DP_RX_DESC_COOKIE_INDEX_GET(cookie); 519 /* TODO */ 520 /* Add sanity for pool_id & index */ 521 return &(soc->rx_desc_mon[pool_id].array[index].rx_desc); 522 } 523 524 /** 525 * dp_rx_cookie_2_va_mon_status() - Converts cookie to a virtual address of 526 * the Rx descriptor on monitor status ring buffer 527 * @soc: core txrx main context 528 * @cookie: cookie used to lookup virtual address 529 * 530 * Return: void *: Virtual Address of the Rx descriptor 531 */ 532 static inline 533 void *dp_rx_cookie_2_va_mon_status(struct dp_soc *soc, uint32_t cookie) 534 { 535 uint8_t pool_id = DP_RX_DESC_COOKIE_POOL_ID_GET(cookie); 536 uint16_t index = DP_RX_DESC_COOKIE_INDEX_GET(cookie); 537 /* TODO */ 538 /* Add sanity for pool_id & index */ 539 return &(soc->rx_desc_status[pool_id].array[index].rx_desc); 540 } 541 #endif /* RX_DESC_MULTI_PAGE_ALLOC */ 542 543 #ifdef DP_RX_DESC_COOKIE_INVALIDATE 544 static inline QDF_STATUS 545 dp_rx_cookie_check_and_invalidate(hal_ring_desc_t ring_desc) 546 { 547 if (qdf_unlikely(HAL_RX_REO_BUF_COOKIE_INVALID_GET(ring_desc))) 548 return QDF_STATUS_E_FAILURE; 549 550 HAL_RX_REO_BUF_COOKIE_INVALID_SET(ring_desc); 551 return QDF_STATUS_SUCCESS; 552 } 553 #else 554 static inline QDF_STATUS 555 dp_rx_cookie_check_and_invalidate(hal_ring_desc_t ring_desc) 556 { 557 return QDF_STATUS_SUCCESS; 558 } 559 #endif 560 561 QDF_STATUS dp_rx_desc_pool_is_allocated(struct rx_desc_pool *rx_desc_pool); 562 QDF_STATUS dp_rx_desc_pool_alloc(struct dp_soc *soc, 563 uint32_t pool_size, 564 struct rx_desc_pool *rx_desc_pool); 565 566 void dp_rx_desc_pool_init(struct dp_soc *soc, uint32_t pool_id, 567 uint32_t pool_size, 568 struct rx_desc_pool *rx_desc_pool); 569 void dp_rx_pdev_mon_buf_buffers_free(struct dp_pdev *pdev, uint32_t mac_id); 570 571 void dp_rx_add_desc_list_to_free_list(struct dp_soc *soc, 572 union dp_rx_desc_list_elem_t **local_desc_list, 573 union dp_rx_desc_list_elem_t **tail, 574 uint16_t pool_id, 575 struct rx_desc_pool *rx_desc_pool); 576 577 uint16_t dp_rx_get_free_desc_list(struct dp_soc *soc, uint32_t pool_id, 578 struct rx_desc_pool *rx_desc_pool, 579 uint16_t num_descs, 580 union dp_rx_desc_list_elem_t **desc_list, 581 union dp_rx_desc_list_elem_t **tail); 582 583 584 QDF_STATUS dp_rx_pdev_desc_pool_alloc(struct dp_pdev *pdev); 585 void dp_rx_pdev_desc_pool_free(struct dp_pdev *pdev); 586 587 QDF_STATUS dp_rx_pdev_desc_pool_init(struct dp_pdev *pdev); 588 void dp_rx_pdev_desc_pool_deinit(struct dp_pdev *pdev); 589 void dp_rx_desc_pool_deinit(struct dp_soc *soc, 590 struct rx_desc_pool *rx_desc_pool); 591 592 QDF_STATUS dp_rx_pdev_attach(struct dp_pdev *pdev); 593 QDF_STATUS dp_rx_pdev_buffers_alloc(struct dp_pdev *pdev); 594 void dp_rx_pdev_buffers_free(struct dp_pdev *pdev); 595 596 void dp_rx_pdev_detach(struct dp_pdev *pdev); 597 598 void dp_print_napi_stats(struct dp_soc *soc); 599 600 /** 601 * dp_rx_vdev_detach() - detach vdev from dp rx 602 * @vdev: virtual device instance 603 * 604 * Return: QDF_STATUS_SUCCESS: success 605 * QDF_STATUS_E_RESOURCES: Error return 606 */ 607 QDF_STATUS dp_rx_vdev_detach(struct dp_vdev *vdev); 608 609 uint32_t 610 dp_rx_process(struct dp_intr *int_ctx, hal_ring_handle_t hal_ring_hdl, 611 uint8_t reo_ring_num, 612 uint32_t quota); 613 614 /** 615 * dp_rx_err_process() - Processes error frames routed to REO error ring 616 * @int_ctx: pointer to DP interrupt context 617 * @soc: core txrx main context 618 * @hal_ring: opaque pointer to the HAL Rx Error Ring, which will be serviced 619 * @quota: No. of units (packets) that can be serviced in one shot. 620 * 621 * This function implements error processing and top level demultiplexer 622 * for all the frames routed to REO error ring. 623 * 624 * Return: uint32_t: No. of elements processed 625 */ 626 uint32_t dp_rx_err_process(struct dp_intr *int_ctx, struct dp_soc *soc, 627 hal_ring_handle_t hal_ring_hdl, uint32_t quota); 628 629 /** 630 * dp_rx_wbm_err_process() - Processes error frames routed to WBM release ring 631 * @int_ctx: pointer to DP interrupt context 632 * @soc: core txrx main context 633 * @hal_ring: opaque pointer to the HAL Rx Error Ring, which will be serviced 634 * @quota: No. of units (packets) that can be serviced in one shot. 635 * 636 * This function implements error processing and top level demultiplexer 637 * for all the frames routed to WBM2HOST sw release ring. 638 * 639 * Return: uint32_t: No. of elements processed 640 */ 641 uint32_t 642 dp_rx_wbm_err_process(struct dp_intr *int_ctx, struct dp_soc *soc, 643 hal_ring_handle_t hal_ring_hdl, uint32_t quota); 644 645 /** 646 * dp_rx_sg_create() - create a frag_list for MSDUs which are spread across 647 * multiple nbufs. 648 * @nbuf: pointer to the first msdu of an amsdu. 649 * 650 * This function implements the creation of RX frag_list for cases 651 * where an MSDU is spread across multiple nbufs. 652 * 653 * Return: returns the head nbuf which contains complete frag_list. 654 */ 655 qdf_nbuf_t dp_rx_sg_create(qdf_nbuf_t nbuf); 656 657 658 /* 659 * dp_rx_desc_nbuf_and_pool_free() - free the sw rx desc pool called during 660 * de-initialization of wifi module. 661 * 662 * @soc: core txrx main context 663 * @pool_id: pool_id which is one of 3 mac_ids 664 * @rx_desc_pool: rx descriptor pool pointer 665 * 666 * Return: None 667 */ 668 void dp_rx_desc_nbuf_and_pool_free(struct dp_soc *soc, uint32_t pool_id, 669 struct rx_desc_pool *rx_desc_pool); 670 671 /* 672 * dp_rx_desc_nbuf_free() - free the sw rx desc nbufs called during 673 * de-initialization of wifi module. 674 * 675 * @soc: core txrx main context 676 * @pool_id: pool_id which is one of 3 mac_ids 677 * @rx_desc_pool: rx descriptor pool pointer 678 * 679 * Return: None 680 */ 681 void dp_rx_desc_nbuf_free(struct dp_soc *soc, 682 struct rx_desc_pool *rx_desc_pool); 683 684 #ifdef DP_RX_MON_MEM_FRAG 685 /* 686 * dp_rx_desc_frag_free() - free the sw rx desc frag called during 687 * de-initialization of wifi module. 688 * 689 * @soc: core txrx main context 690 * @rx_desc_pool: rx descriptor pool pointer 691 * 692 * Return: None 693 */ 694 void dp_rx_desc_frag_free(struct dp_soc *soc, 695 struct rx_desc_pool *rx_desc_pool); 696 #else 697 static inline 698 void dp_rx_desc_frag_free(struct dp_soc *soc, 699 struct rx_desc_pool *rx_desc_pool) 700 { 701 } 702 #endif 703 /* 704 * dp_rx_desc_pool_free() - free the sw rx desc array called during 705 * de-initialization of wifi module. 706 * 707 * @soc: core txrx main context 708 * @rx_desc_pool: rx descriptor pool pointer 709 * 710 * Return: None 711 */ 712 void dp_rx_desc_pool_free(struct dp_soc *soc, 713 struct rx_desc_pool *rx_desc_pool); 714 715 void dp_rx_deliver_raw(struct dp_vdev *vdev, qdf_nbuf_t nbuf_list, 716 struct dp_peer *peer); 717 718 #ifdef RX_DESC_DEBUG_CHECK 719 /** 720 * dp_rx_desc_paddr_sanity_check() - paddr sanity for ring desc vs rx_desc 721 * @rx_desc: rx descriptor 722 * @ring_paddr: paddr obatined from the ring 723 * 724 * Returns: QDF_STATUS 725 */ 726 static inline 727 bool dp_rx_desc_paddr_sanity_check(struct dp_rx_desc *rx_desc, 728 uint64_t ring_paddr) 729 { 730 return (ring_paddr == qdf_nbuf_get_frag_paddr(rx_desc->nbuf, 0)); 731 } 732 733 /* 734 * dp_rx_desc_alloc_dbg_info() - Alloc memory for rx descriptor debug 735 * structure 736 * @rx_desc: rx descriptor pointer 737 * 738 * Return: None 739 */ 740 static inline 741 void dp_rx_desc_alloc_dbg_info(struct dp_rx_desc *rx_desc) 742 { 743 rx_desc->dbg_info = qdf_mem_malloc(sizeof(struct dp_rx_desc_dbg_info)); 744 } 745 746 /* 747 * dp_rx_desc_free_dbg_info() - Free rx descriptor debug 748 * structure memory 749 * @rx_desc: rx descriptor pointer 750 * 751 * Return: None 752 */ 753 static inline 754 void dp_rx_desc_free_dbg_info(struct dp_rx_desc *rx_desc) 755 { 756 qdf_mem_free(rx_desc->dbg_info); 757 } 758 759 /* 760 * dp_rx_desc_update_dbg_info() - Update rx descriptor debug info 761 * structure memory 762 * @rx_desc: rx descriptor pointer 763 * 764 * Return: None 765 */ 766 static 767 void dp_rx_desc_update_dbg_info(struct dp_rx_desc *rx_desc, 768 const char *func_name, uint8_t flag) 769 { 770 struct dp_rx_desc_dbg_info *info = rx_desc->dbg_info; 771 772 if (!info) 773 return; 774 775 if (flag == RX_DESC_REPLENISHED) { 776 qdf_str_lcopy(info->replenish_caller, func_name, 777 QDF_MEM_FUNC_NAME_SIZE); 778 info->replenish_ts = qdf_get_log_timestamp(); 779 } else { 780 qdf_str_lcopy(info->freelist_caller, func_name, 781 QDF_MEM_FUNC_NAME_SIZE); 782 info->freelist_ts = qdf_get_log_timestamp(); 783 } 784 } 785 #else 786 787 static inline 788 bool dp_rx_desc_paddr_sanity_check(struct dp_rx_desc *rx_desc, 789 uint64_t ring_paddr) 790 { 791 return true; 792 } 793 794 static inline 795 void dp_rx_desc_alloc_dbg_info(struct dp_rx_desc *rx_desc) 796 { 797 } 798 799 static inline 800 void dp_rx_desc_free_dbg_info(struct dp_rx_desc *rx_desc) 801 { 802 } 803 804 static inline 805 void dp_rx_desc_update_dbg_info(struct dp_rx_desc *rx_desc, 806 const char *func_name, uint8_t flag) 807 { 808 } 809 #endif /* RX_DESC_DEBUG_CHECK */ 810 811 /** 812 * dp_rx_add_to_free_desc_list() - Adds to a local free descriptor list 813 * 814 * @head: pointer to the head of local free list 815 * @tail: pointer to the tail of local free list 816 * @new: new descriptor that is added to the free list 817 * @func_name: caller func name 818 * 819 * Return: void: 820 */ 821 static inline 822 void __dp_rx_add_to_free_desc_list(union dp_rx_desc_list_elem_t **head, 823 union dp_rx_desc_list_elem_t **tail, 824 struct dp_rx_desc *new, const char *func_name) 825 { 826 qdf_assert(head && new); 827 828 new->nbuf = NULL; 829 new->in_use = 0; 830 831 ((union dp_rx_desc_list_elem_t *)new)->next = *head; 832 *head = (union dp_rx_desc_list_elem_t *)new; 833 /* reset tail if head->next is NULL */ 834 if (!*tail || !(*head)->next) 835 *tail = *head; 836 837 dp_rx_desc_update_dbg_info(new, func_name, RX_DESC_IN_FREELIST); 838 } 839 840 uint8_t dp_rx_process_invalid_peer(struct dp_soc *soc, qdf_nbuf_t nbuf, 841 uint8_t mac_id); 842 void dp_rx_process_invalid_peer_wrapper(struct dp_soc *soc, 843 qdf_nbuf_t mpdu, bool mpdu_done, uint8_t mac_id); 844 void dp_rx_process_mic_error(struct dp_soc *soc, qdf_nbuf_t nbuf, 845 uint8_t *rx_tlv_hdr, struct dp_peer *peer); 846 void dp_2k_jump_handle(struct dp_soc *soc, qdf_nbuf_t nbuf, uint8_t *rx_tlv_hdr, 847 uint16_t peer_id, uint8_t tid); 848 849 #define DP_RX_HEAD_APPEND(head, elem) \ 850 do { \ 851 qdf_nbuf_set_next((elem), (head)); \ 852 (head) = (elem); \ 853 } while (0) 854 855 856 #define DP_RX_LIST_APPEND(head, tail, elem) \ 857 do { \ 858 if (!(head)) { \ 859 (head) = (elem); \ 860 QDF_NBUF_CB_RX_NUM_ELEMENTS_IN_LIST(head) = 1;\ 861 } else { \ 862 qdf_nbuf_set_next((tail), (elem)); \ 863 QDF_NBUF_CB_RX_NUM_ELEMENTS_IN_LIST(head)++; \ 864 } \ 865 (tail) = (elem); \ 866 qdf_nbuf_set_next((tail), NULL); \ 867 } while (0) 868 869 #define DP_RX_MERGE_TWO_LIST(phead, ptail, chead, ctail) \ 870 do { \ 871 if (!(phead)) { \ 872 (phead) = (chead); \ 873 } else { \ 874 qdf_nbuf_set_next((ptail), (chead)); \ 875 QDF_NBUF_CB_RX_NUM_ELEMENTS_IN_LIST(phead) += \ 876 QDF_NBUF_CB_RX_NUM_ELEMENTS_IN_LIST(chead); \ 877 } \ 878 (ptail) = (ctail); \ 879 qdf_nbuf_set_next((ptail), NULL); \ 880 } while (0) 881 882 /*for qcn9000 emulation the pcie is complete phy and no address restrictions*/ 883 #if !defined(BUILD_X86) || defined(QCA_WIFI_QCN9000) 884 static inline int check_x86_paddr(struct dp_soc *dp_soc, qdf_nbuf_t *rx_netbuf, 885 qdf_dma_addr_t *paddr, struct rx_desc_pool *rx_desc_pool) 886 { 887 return QDF_STATUS_SUCCESS; 888 } 889 #else 890 #define MAX_RETRY 100 891 static inline int check_x86_paddr(struct dp_soc *dp_soc, qdf_nbuf_t *rx_netbuf, 892 qdf_dma_addr_t *paddr, struct rx_desc_pool *rx_desc_pool) 893 { 894 uint32_t nbuf_retry = 0; 895 int32_t ret; 896 const uint32_t x86_phy_addr = 0x50000000; 897 /* 898 * in M2M emulation platforms (x86) the memory below 0x50000000 899 * is reserved for target use, so any memory allocated in this 900 * region should not be used by host 901 */ 902 do { 903 if (qdf_likely(*paddr > x86_phy_addr)) 904 return QDF_STATUS_SUCCESS; 905 else { 906 QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_INFO, 907 "phy addr %pK exceeded 0x50000000 trying again", 908 paddr); 909 910 nbuf_retry++; 911 if ((*rx_netbuf)) { 912 qdf_nbuf_unmap_single(dp_soc->osdev, *rx_netbuf, 913 QDF_DMA_FROM_DEVICE); 914 /* Not freeing buffer intentionally. 915 * Observed that same buffer is getting 916 * re-allocated resulting in longer load time 917 * WMI init timeout. 918 * This buffer is anyway not useful so skip it. 919 **/ 920 } 921 922 *rx_netbuf = qdf_nbuf_alloc(dp_soc->osdev, 923 rx_desc_pool->buf_size, 924 RX_BUFFER_RESERVATION, 925 rx_desc_pool->buf_alignment, 926 FALSE); 927 928 if (qdf_unlikely(!(*rx_netbuf))) 929 return QDF_STATUS_E_FAILURE; 930 931 ret = qdf_nbuf_map_single(dp_soc->osdev, *rx_netbuf, 932 QDF_DMA_FROM_DEVICE); 933 934 if (qdf_unlikely(ret == QDF_STATUS_E_FAILURE)) { 935 qdf_nbuf_free(*rx_netbuf); 936 *rx_netbuf = NULL; 937 continue; 938 } 939 940 *paddr = qdf_nbuf_get_frag_paddr(*rx_netbuf, 0); 941 } 942 } while (nbuf_retry < MAX_RETRY); 943 944 if ((*rx_netbuf)) { 945 qdf_nbuf_unmap_single(dp_soc->osdev, *rx_netbuf, 946 QDF_DMA_FROM_DEVICE); 947 qdf_nbuf_free(*rx_netbuf); 948 } 949 950 return QDF_STATUS_E_FAILURE; 951 } 952 #endif 953 954 /** 955 * dp_rx_cookie_2_link_desc_va() - Converts cookie to a virtual address of 956 * the MSDU Link Descriptor 957 * @soc: core txrx main context 958 * @buf_info: buf_info includes cookie that is used to lookup 959 * virtual address of link descriptor after deriving the page id 960 * and the offset or index of the desc on the associatde page. 961 * 962 * This is the VA of the link descriptor, that HAL layer later uses to 963 * retrieve the list of MSDU's for a given MPDU. 964 * 965 * Return: void *: Virtual Address of the Rx descriptor 966 */ 967 static inline 968 void *dp_rx_cookie_2_link_desc_va(struct dp_soc *soc, 969 struct hal_buf_info *buf_info) 970 { 971 void *link_desc_va; 972 struct qdf_mem_multi_page_t *pages; 973 uint16_t page_id = LINK_DESC_COOKIE_PAGE_ID(buf_info->sw_cookie); 974 975 pages = &soc->link_desc_pages; 976 if (!pages) 977 return NULL; 978 if (qdf_unlikely(page_id >= pages->num_pages)) 979 return NULL; 980 link_desc_va = pages->dma_pages[page_id].page_v_addr_start + 981 (buf_info->paddr - pages->dma_pages[page_id].page_p_addr); 982 return link_desc_va; 983 } 984 985 /** 986 * dp_rx_cookie_2_mon_link_desc_va() - Converts cookie to a virtual address of 987 * the MSDU Link Descriptor 988 * @pdev: core txrx pdev context 989 * @buf_info: buf_info includes cookie that used to lookup virtual address of 990 * link descriptor. Normally this is just an index into a per pdev array. 991 * 992 * This is the VA of the link descriptor in monitor mode destination ring, 993 * that HAL layer later uses to retrieve the list of MSDU's for a given MPDU. 994 * 995 * Return: void *: Virtual Address of the Rx descriptor 996 */ 997 static inline 998 void *dp_rx_cookie_2_mon_link_desc_va(struct dp_pdev *pdev, 999 struct hal_buf_info *buf_info, 1000 int mac_id) 1001 { 1002 void *link_desc_va; 1003 struct qdf_mem_multi_page_t *pages; 1004 uint16_t page_id = LINK_DESC_COOKIE_PAGE_ID(buf_info->sw_cookie); 1005 1006 pages = &pdev->soc->mon_link_desc_pages[mac_id]; 1007 if (!pages) 1008 return NULL; 1009 1010 if (qdf_unlikely(page_id >= pages->num_pages)) 1011 return NULL; 1012 1013 link_desc_va = pages->dma_pages[page_id].page_v_addr_start + 1014 (buf_info->paddr - pages->dma_pages[page_id].page_p_addr); 1015 1016 return link_desc_va; 1017 } 1018 1019 /** 1020 * dp_rx_defrag_concat() - Concatenate the fragments 1021 * 1022 * @dst: destination pointer to the buffer 1023 * @src: source pointer from where the fragment payload is to be copied 1024 * 1025 * Return: QDF_STATUS 1026 */ 1027 static inline QDF_STATUS dp_rx_defrag_concat(qdf_nbuf_t dst, qdf_nbuf_t src) 1028 { 1029 /* 1030 * Inside qdf_nbuf_cat, if it is necessary to reallocate dst 1031 * to provide space for src, the headroom portion is copied from 1032 * the original dst buffer to the larger new dst buffer. 1033 * (This is needed, because the headroom of the dst buffer 1034 * contains the rx desc.) 1035 */ 1036 if (!qdf_nbuf_cat(dst, src)) { 1037 /* 1038 * qdf_nbuf_cat does not free the src memory. 1039 * Free src nbuf before returning 1040 * For failure case the caller takes of freeing the nbuf 1041 */ 1042 qdf_nbuf_free(src); 1043 return QDF_STATUS_SUCCESS; 1044 } 1045 1046 return QDF_STATUS_E_DEFRAG_ERROR; 1047 } 1048 1049 #ifndef FEATURE_WDS 1050 static inline QDF_STATUS dp_rx_ast_set_active(struct dp_soc *soc, uint16_t sa_idx, bool is_active) 1051 { 1052 return QDF_STATUS_SUCCESS; 1053 } 1054 1055 static inline void 1056 dp_rx_wds_srcport_learn(struct dp_soc *soc, 1057 uint8_t *rx_tlv_hdr, 1058 struct dp_peer *ta_peer, 1059 qdf_nbuf_t nbuf, 1060 struct hal_rx_msdu_metadata msdu_metadata) 1061 { 1062 } 1063 #endif 1064 1065 /* 1066 * dp_rx_desc_dump() - dump the sw rx descriptor 1067 * 1068 * @rx_desc: sw rx descriptor 1069 */ 1070 static inline void dp_rx_desc_dump(struct dp_rx_desc *rx_desc) 1071 { 1072 dp_info("rx_desc->nbuf: %pK, rx_desc->cookie: %d, rx_desc->pool_id: %d, rx_desc->in_use: %d, rx_desc->unmapped: %d", 1073 rx_desc->nbuf, rx_desc->cookie, rx_desc->pool_id, 1074 rx_desc->in_use, rx_desc->unmapped); 1075 } 1076 1077 /* 1078 * check_qwrap_multicast_loopback() - Check if rx packet is a loopback packet. 1079 * In qwrap mode, packets originated from 1080 * any vdev should not loopback and 1081 * should be dropped. 1082 * @vdev: vdev on which rx packet is received 1083 * @nbuf: rx pkt 1084 * 1085 */ 1086 #if ATH_SUPPORT_WRAP 1087 static inline bool check_qwrap_multicast_loopback(struct dp_vdev *vdev, 1088 qdf_nbuf_t nbuf) 1089 { 1090 struct dp_vdev *psta_vdev; 1091 struct dp_pdev *pdev = vdev->pdev; 1092 uint8_t *data = qdf_nbuf_data(nbuf); 1093 1094 if (qdf_unlikely(vdev->proxysta_vdev)) { 1095 /* In qwrap isolation mode, allow loopback packets as all 1096 * packets go to RootAP and Loopback on the mpsta. 1097 */ 1098 if (vdev->isolation_vdev) 1099 return false; 1100 TAILQ_FOREACH(psta_vdev, &pdev->vdev_list, vdev_list_elem) { 1101 if (qdf_unlikely(psta_vdev->proxysta_vdev && 1102 !qdf_mem_cmp(psta_vdev->mac_addr.raw, 1103 &data[QDF_MAC_ADDR_SIZE], 1104 QDF_MAC_ADDR_SIZE))) { 1105 /* Drop packet if source address is equal to 1106 * any of the vdev addresses. 1107 */ 1108 return true; 1109 } 1110 } 1111 } 1112 return false; 1113 } 1114 #else 1115 static inline bool check_qwrap_multicast_loopback(struct dp_vdev *vdev, 1116 qdf_nbuf_t nbuf) 1117 { 1118 return false; 1119 } 1120 #endif 1121 1122 #if defined(WLAN_SUPPORT_RX_PROTOCOL_TYPE_TAG) ||\ 1123 defined(WLAN_SUPPORT_RX_TAG_STATISTICS) ||\ 1124 defined(WLAN_SUPPORT_RX_FLOW_TAG) 1125 #include "dp_rx_tag.h" 1126 #endif 1127 1128 #ifndef WLAN_SUPPORT_RX_PROTOCOL_TYPE_TAG 1129 /** 1130 * dp_rx_update_protocol_tag() - Reads CCE metadata from the RX MSDU end TLV 1131 * and set the corresponding tag in QDF packet 1132 * @soc: core txrx main context 1133 * @vdev: vdev on which the packet is received 1134 * @nbuf: QDF pkt buffer on which the protocol tag should be set 1135 * @rx_tlv_hdr: rBbase address where the RX TLVs starts 1136 * @ring_index: REO ring number, not used for error & monitor ring 1137 * @is_reo_exception: flag to indicate if rx from REO ring or exception ring 1138 * @is_update_stats: flag to indicate whether to update stats or not 1139 * Return: void 1140 */ 1141 static inline void 1142 dp_rx_update_protocol_tag(struct dp_soc *soc, struct dp_vdev *vdev, 1143 qdf_nbuf_t nbuf, uint8_t *rx_tlv_hdr, 1144 uint16_t ring_index, 1145 bool is_reo_exception, bool is_update_stats) 1146 { 1147 } 1148 #endif /* WLAN_SUPPORT_RX_PROTOCOL_TYPE_TAG */ 1149 1150 #ifndef WLAN_SUPPORT_RX_FLOW_TAG 1151 /** 1152 * dp_rx_update_flow_tag() - Reads FSE metadata from the RX MSDU end TLV 1153 * and set the corresponding tag in QDF packet 1154 * @soc: core txrx main context 1155 * @vdev: vdev on which the packet is received 1156 * @nbuf: QDF pkt buffer on which the protocol tag should be set 1157 * @rx_tlv_hdr: base address where the RX TLVs starts 1158 * @is_update_stats: flag to indicate whether to update stats or not 1159 * 1160 * Return: void 1161 */ 1162 static inline void 1163 dp_rx_update_flow_tag(struct dp_soc *soc, struct dp_vdev *vdev, 1164 qdf_nbuf_t nbuf, uint8_t *rx_tlv_hdr, bool update_stats) 1165 { 1166 } 1167 #endif /* WLAN_SUPPORT_RX_FLOW_TAG */ 1168 1169 #if !defined(WLAN_SUPPORT_RX_PROTOCOL_TYPE_TAG) &&\ 1170 !defined(WLAN_SUPPORT_RX_FLOW_TAG) 1171 /** 1172 * dp_rx_mon_update_protocol_flow_tag() - Performs necessary checks for monitor 1173 * mode and then tags appropriate packets 1174 * @soc: core txrx main context 1175 * @vdev: pdev on which packet is received 1176 * @msdu: QDF packet buffer on which the protocol tag should be set 1177 * @rx_desc: base address where the RX TLVs start 1178 * Return: void 1179 */ 1180 static inline 1181 void dp_rx_mon_update_protocol_flow_tag(struct dp_soc *soc, 1182 struct dp_pdev *dp_pdev, 1183 qdf_nbuf_t msdu, void *rx_desc) 1184 { 1185 } 1186 #endif /* WLAN_SUPPORT_RX_PROTOCOL_TYPE_TAG || WLAN_SUPPORT_RX_FLOW_TAG */ 1187 1188 /* 1189 * dp_rx_buffers_replenish() - replenish rxdma ring with rx nbufs 1190 * called during dp rx initialization 1191 * and at the end of dp_rx_process. 1192 * 1193 * @soc: core txrx main context 1194 * @mac_id: mac_id which is one of 3 mac_ids 1195 * @dp_rxdma_srng: dp rxdma circular ring 1196 * @rx_desc_pool: Pointer to free Rx descriptor pool 1197 * @num_req_buffers: number of buffer to be replenished 1198 * @desc_list: list of descs if called from dp_rx_process 1199 * or NULL during dp rx initialization or out of buffer 1200 * interrupt. 1201 * @tail: tail of descs list 1202 * @func_name: name of the caller function 1203 * Return: return success or failure 1204 */ 1205 QDF_STATUS __dp_rx_buffers_replenish(struct dp_soc *dp_soc, uint32_t mac_id, 1206 struct dp_srng *dp_rxdma_srng, 1207 struct rx_desc_pool *rx_desc_pool, 1208 uint32_t num_req_buffers, 1209 union dp_rx_desc_list_elem_t **desc_list, 1210 union dp_rx_desc_list_elem_t **tail, 1211 const char *func_name); 1212 1213 /* 1214 * dp_pdev_rx_buffers_attach() - replenish rxdma ring with rx nbufs 1215 * called during dp rx initialization 1216 * 1217 * @soc: core txrx main context 1218 * @mac_id: mac_id which is one of 3 mac_ids 1219 * @dp_rxdma_srng: dp rxdma circular ring 1220 * @rx_desc_pool: Pointer to free Rx descriptor pool 1221 * @num_req_buffers: number of buffer to be replenished 1222 * 1223 * Return: return success or failure 1224 */ 1225 QDF_STATUS 1226 dp_pdev_rx_buffers_attach(struct dp_soc *dp_soc, uint32_t mac_id, 1227 struct dp_srng *dp_rxdma_srng, 1228 struct rx_desc_pool *rx_desc_pool, 1229 uint32_t num_req_buffers); 1230 1231 /** 1232 * dp_rx_link_desc_return() - Return a MPDU link descriptor to HW 1233 * (WBM), following error handling 1234 * 1235 * @soc: core DP main context 1236 * @buf_addr_info: opaque pointer to the REO error ring descriptor 1237 * @buf_addr_info: void pointer to the buffer_addr_info 1238 * @bm_action: put to idle_list or release to msdu_list 1239 * 1240 * Return: QDF_STATUS_E_FAILURE for failure else QDF_STATUS_SUCCESS 1241 */ 1242 QDF_STATUS 1243 dp_rx_link_desc_return(struct dp_soc *soc, hal_ring_desc_t ring_desc, 1244 uint8_t bm_action); 1245 1246 /** 1247 * dp_rx_link_desc_return_by_addr - Return a MPDU link descriptor to 1248 * (WBM) by address 1249 * 1250 * @soc: core DP main context 1251 * @link_desc_addr: link descriptor addr 1252 * 1253 * Return: QDF_STATUS_E_FAILURE for failure else QDF_STATUS_SUCCESS 1254 */ 1255 QDF_STATUS 1256 dp_rx_link_desc_return_by_addr(struct dp_soc *soc, 1257 hal_buff_addrinfo_t link_desc_addr, 1258 uint8_t bm_action); 1259 1260 /** 1261 * dp_rxdma_err_process() - RxDMA error processing functionality 1262 * @soc: core txrx main contex 1263 * @mac_id: mac id which is one of 3 mac_ids 1264 * @hal_ring: opaque pointer to the HAL Rx Ring, which will be serviced 1265 * @quota: No. of units (packets) that can be serviced in one shot. 1266 * 1267 * Return: num of buffers processed 1268 */ 1269 uint32_t 1270 dp_rxdma_err_process(struct dp_intr *int_ctx, struct dp_soc *soc, 1271 uint32_t mac_id, uint32_t quota); 1272 1273 void dp_rx_fill_mesh_stats(struct dp_vdev *vdev, qdf_nbuf_t nbuf, 1274 uint8_t *rx_tlv_hdr, struct dp_peer *peer); 1275 QDF_STATUS dp_rx_filter_mesh_packets(struct dp_vdev *vdev, qdf_nbuf_t nbuf, 1276 uint8_t *rx_tlv_hdr); 1277 1278 int dp_wds_rx_policy_check(uint8_t *rx_tlv_hdr, struct dp_vdev *vdev, 1279 struct dp_peer *peer); 1280 1281 /* 1282 * dp_rx_dump_info_and_assert() - dump RX Ring info and Rx Desc info 1283 * 1284 * @soc: core txrx main context 1285 * @hal_ring: opaque pointer to the HAL Rx Ring, which will be serviced 1286 * @ring_desc: opaque pointer to the RX ring descriptor 1287 * @rx_desc: host rs descriptor 1288 * 1289 * Return: void 1290 */ 1291 void dp_rx_dump_info_and_assert(struct dp_soc *soc, 1292 hal_ring_handle_t hal_ring_hdl, 1293 hal_ring_desc_t ring_desc, 1294 struct dp_rx_desc *rx_desc); 1295 1296 void dp_rx_compute_delay(struct dp_vdev *vdev, qdf_nbuf_t nbuf); 1297 1298 #ifdef QCA_PEER_EXT_STATS 1299 void dp_rx_compute_tid_delay(struct cdp_delay_tid_stats *stats, 1300 qdf_nbuf_t nbuf); 1301 #endif /* QCA_PEER_EXT_STATS */ 1302 1303 #ifdef RX_DESC_DEBUG_CHECK 1304 /** 1305 * dp_rx_desc_check_magic() - check the magic value in dp_rx_desc 1306 * @rx_desc: rx descriptor pointer 1307 * 1308 * Return: true, if magic is correct, else false. 1309 */ 1310 static inline bool dp_rx_desc_check_magic(struct dp_rx_desc *rx_desc) 1311 { 1312 if (qdf_unlikely(rx_desc->magic != DP_RX_DESC_MAGIC)) 1313 return false; 1314 1315 rx_desc->magic = 0; 1316 return true; 1317 } 1318 1319 /** 1320 * dp_rx_desc_prep() - prepare rx desc 1321 * @rx_desc: rx descriptor pointer to be prepared 1322 * @nbuf_frag_info_t: struct dp_rx_nbuf_frag_info * 1323 * 1324 * Note: assumption is that we are associating a nbuf which is mapped 1325 * 1326 * Return: none 1327 */ 1328 static inline 1329 void dp_rx_desc_prep(struct dp_rx_desc *rx_desc, 1330 struct dp_rx_nbuf_frag_info *nbuf_frag_info_t) 1331 { 1332 rx_desc->magic = DP_RX_DESC_MAGIC; 1333 rx_desc->nbuf = (nbuf_frag_info_t->virt_addr).nbuf; 1334 rx_desc->unmapped = 0; 1335 } 1336 1337 /** 1338 * dp_rx_desc_frag_prep() - prepare rx desc 1339 * @rx_desc: rx descriptor pointer to be prepared 1340 * @nbuf_frag_info_t: struct dp_rx_nbuf_frag_info * 1341 * 1342 * Note: assumption is that we frag address is mapped 1343 * 1344 * Return: none 1345 */ 1346 #ifdef DP_RX_MON_MEM_FRAG 1347 static inline 1348 void dp_rx_desc_frag_prep(struct dp_rx_desc *rx_desc, 1349 struct dp_rx_nbuf_frag_info *nbuf_frag_info_t) 1350 { 1351 rx_desc->magic = DP_RX_DESC_MAGIC; 1352 rx_desc->rx_buf_start = 1353 (uint8_t *)((nbuf_frag_info_t->virt_addr).vaddr); 1354 rx_desc->paddr_buf_start = nbuf_frag_info_t->paddr; 1355 rx_desc->unmapped = 0; 1356 } 1357 #else 1358 static inline 1359 void dp_rx_desc_frag_prep(struct dp_rx_desc *rx_desc, 1360 struct dp_rx_nbuf_frag_info *nbuf_frag_info_t) 1361 { 1362 } 1363 #endif /* DP_RX_MON_MEM_FRAG */ 1364 #else 1365 1366 static inline bool dp_rx_desc_check_magic(struct dp_rx_desc *rx_desc) 1367 { 1368 return true; 1369 } 1370 1371 static inline 1372 void dp_rx_desc_prep(struct dp_rx_desc *rx_desc, 1373 struct dp_rx_nbuf_frag_info *nbuf_frag_info_t) 1374 { 1375 rx_desc->nbuf = (nbuf_frag_info_t->virt_addr).nbuf; 1376 rx_desc->unmapped = 0; 1377 } 1378 1379 #ifdef DP_RX_MON_MEM_FRAG 1380 static inline 1381 void dp_rx_desc_frag_prep(struct dp_rx_desc *rx_desc, 1382 struct dp_rx_nbuf_frag_info *nbuf_frag_info_t) 1383 { 1384 rx_desc->rx_buf_start = 1385 (uint8_t *)((nbuf_frag_info_t->virt_addr).vaddr); 1386 rx_desc->paddr_buf_start = nbuf_frag_info_t->paddr; 1387 rx_desc->unmapped = 0; 1388 } 1389 #else 1390 static inline 1391 void dp_rx_desc_frag_prep(struct dp_rx_desc *rx_desc, 1392 struct dp_rx_nbuf_frag_info *nbuf_frag_info_t) 1393 { 1394 } 1395 #endif /* DP_RX_MON_MEM_FRAG */ 1396 1397 #endif /* RX_DESC_DEBUG_CHECK */ 1398 1399 void dp_rx_enable_mon_dest_frag(struct rx_desc_pool *rx_desc_pool, 1400 bool is_mon_dest_desc); 1401 1402 void dp_rx_process_rxdma_err(struct dp_soc *soc, qdf_nbuf_t nbuf, 1403 uint8_t *rx_tlv_hdr, struct dp_peer *peer, 1404 uint8_t err_code, uint8_t mac_id); 1405 1406 #ifndef QCA_MULTIPASS_SUPPORT 1407 static inline 1408 bool dp_rx_multipass_process(struct dp_peer *peer, qdf_nbuf_t nbuf, uint8_t tid) 1409 { 1410 return false; 1411 } 1412 #else 1413 bool dp_rx_multipass_process(struct dp_peer *peer, qdf_nbuf_t nbuf, 1414 uint8_t tid); 1415 #endif 1416 1417 #ifndef WLAN_RX_PKT_CAPTURE_ENH 1418 static inline 1419 QDF_STATUS dp_peer_set_rx_capture_enabled(struct dp_pdev *pdev, 1420 struct dp_peer *peer_handle, 1421 bool value, uint8_t *mac_addr) 1422 { 1423 return QDF_STATUS_SUCCESS; 1424 } 1425 #endif 1426 1427 /** 1428 * dp_rx_deliver_to_stack() - deliver pkts to network stack 1429 * Caller to hold peer refcount and check for valid peer 1430 * @soc: soc 1431 * @vdev: vdev 1432 * @peer: peer 1433 * @nbuf_head: skb list head 1434 * @nbuf_tail: skb list tail 1435 * 1436 * Return: None 1437 */ 1438 void dp_rx_deliver_to_stack(struct dp_soc *soc, 1439 struct dp_vdev *vdev, 1440 struct dp_peer *peer, 1441 qdf_nbuf_t nbuf_head, 1442 qdf_nbuf_t nbuf_tail); 1443 1444 #ifdef QCA_OL_RX_LOCK_LESS_ACCESS 1445 /* 1446 * dp_rx_ring_access_start()- Wrapper function to log access start of a hal ring 1447 * @int_ctx: pointer to DP interrupt context 1448 * @dp_soc - DP soc structure pointer 1449 * @hal_ring_hdl - HAL ring handle 1450 * 1451 * Return: 0 on success; error on failure 1452 */ 1453 static inline int 1454 dp_rx_srng_access_start(struct dp_intr *int_ctx, struct dp_soc *soc, 1455 hal_ring_handle_t hal_ring_hdl) 1456 { 1457 return hal_srng_access_start_unlocked(soc->hal_soc, hal_ring_hdl); 1458 } 1459 1460 /* 1461 * dp_rx_ring_access_end()- Wrapper function to log access end of a hal ring 1462 * @int_ctx: pointer to DP interrupt context 1463 * @dp_soc - DP soc structure pointer 1464 * @hal_ring_hdl - HAL ring handle 1465 * 1466 * Return - None 1467 */ 1468 static inline void 1469 dp_rx_srng_access_end(struct dp_intr *int_ctx, struct dp_soc *soc, 1470 hal_ring_handle_t hal_ring_hdl) 1471 { 1472 hal_srng_access_end_unlocked(soc->hal_soc, hal_ring_hdl); 1473 } 1474 #else 1475 static inline int 1476 dp_rx_srng_access_start(struct dp_intr *int_ctx, struct dp_soc *soc, 1477 hal_ring_handle_t hal_ring_hdl) 1478 { 1479 return dp_srng_access_start(int_ctx, soc, hal_ring_hdl); 1480 } 1481 1482 static inline void 1483 dp_rx_srng_access_end(struct dp_intr *int_ctx, struct dp_soc *soc, 1484 hal_ring_handle_t hal_ring_hdl) 1485 { 1486 dp_srng_access_end(int_ctx, soc, hal_ring_hdl); 1487 } 1488 #endif 1489 1490 /* 1491 * dp_rx_wbm_sg_list_reset() - Initialize sg list 1492 * 1493 * This api should be called at soc init and afterevery sg processing. 1494 *@soc: DP SOC handle 1495 */ 1496 static inline void dp_rx_wbm_sg_list_reset(struct dp_soc *soc) 1497 { 1498 if (soc) { 1499 soc->wbm_sg_param.wbm_is_first_msdu_in_sg = false; 1500 soc->wbm_sg_param.wbm_sg_nbuf_head = NULL; 1501 soc->wbm_sg_param.wbm_sg_nbuf_tail = NULL; 1502 soc->wbm_sg_param.wbm_sg_desc_msdu_len = 0; 1503 } 1504 } 1505 1506 /* 1507 * dp_rx_wbm_sg_list_deinit() - De-initialize sg list 1508 * 1509 * This api should be called in down path, to avoid any leak. 1510 *@soc: DP SOC handle 1511 */ 1512 static inline void dp_rx_wbm_sg_list_deinit(struct dp_soc *soc) 1513 { 1514 if (soc) { 1515 if (soc->wbm_sg_param.wbm_sg_nbuf_head) 1516 qdf_nbuf_list_free(soc->wbm_sg_param.wbm_sg_nbuf_head); 1517 1518 dp_rx_wbm_sg_list_reset(soc); 1519 } 1520 } 1521 1522 #ifdef WLAN_FEATURE_RX_PREALLOC_BUFFER_POOL 1523 #define DP_RX_PROCESS_NBUF(soc, head, tail, ebuf_head, ebuf_tail, rx_desc) \ 1524 do { \ 1525 if (!soc->rx_buff_pool[rx_desc->pool_id].is_initialized) { \ 1526 DP_RX_LIST_APPEND(head, tail, rx_desc->nbuf); \ 1527 break; \ 1528 } \ 1529 DP_RX_LIST_APPEND(ebuf_head, ebuf_tail, rx_desc->nbuf); \ 1530 if (!qdf_nbuf_is_rx_chfrag_cont(rx_desc->nbuf)) { \ 1531 if (!dp_rx_buffer_pool_refill(soc, ebuf_head, \ 1532 rx_desc->pool_id)) \ 1533 DP_RX_MERGE_TWO_LIST(head, tail, \ 1534 ebuf_head, ebuf_tail);\ 1535 ebuf_head = NULL; \ 1536 ebuf_tail = NULL; \ 1537 } \ 1538 } while (0) 1539 #else 1540 #define DP_RX_PROCESS_NBUF(soc, head, tail, ebuf_head, ebuf_tail, rx_desc) \ 1541 DP_RX_LIST_APPEND(head, tail, rx_desc->nbuf) 1542 #endif /* WLAN_FEATURE_RX_PREALLOC_BUFFER_POOL */ 1543 1544 /* 1545 * dp_rx_link_desc_refill_duplicate_check() - check if link desc duplicate 1546 to refill 1547 * @soc: DP SOC handle 1548 * @buf_info: the last link desc buf info 1549 * @ring_buf_info: current buf address pointor including link desc 1550 * 1551 * return: none. 1552 */ 1553 void dp_rx_link_desc_refill_duplicate_check( 1554 struct dp_soc *soc, 1555 struct hal_buf_info *buf_info, 1556 hal_buff_addrinfo_t ring_buf_info); 1557 #endif /* _DP_RX_H */ 1558