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 * @soc: core txrx main context 649 * @nbuf: pointer to the first msdu of an amsdu. 650 * 651 * This function implements the creation of RX frag_list for cases 652 * where an MSDU is spread across multiple nbufs. 653 * 654 * Return: returns the head nbuf which contains complete frag_list. 655 */ 656 qdf_nbuf_t dp_rx_sg_create(struct dp_soc *soc, qdf_nbuf_t nbuf); 657 658 659 /* 660 * dp_rx_desc_nbuf_and_pool_free() - free the sw rx desc pool called during 661 * de-initialization of wifi module. 662 * 663 * @soc: core txrx main context 664 * @pool_id: pool_id which is one of 3 mac_ids 665 * @rx_desc_pool: rx descriptor pool pointer 666 * 667 * Return: None 668 */ 669 void dp_rx_desc_nbuf_and_pool_free(struct dp_soc *soc, uint32_t pool_id, 670 struct rx_desc_pool *rx_desc_pool); 671 672 /* 673 * dp_rx_desc_nbuf_free() - free the sw rx desc nbufs called during 674 * de-initialization of wifi module. 675 * 676 * @soc: core txrx main context 677 * @pool_id: pool_id which is one of 3 mac_ids 678 * @rx_desc_pool: rx descriptor pool pointer 679 * 680 * Return: None 681 */ 682 void dp_rx_desc_nbuf_free(struct dp_soc *soc, 683 struct rx_desc_pool *rx_desc_pool); 684 685 #ifdef DP_RX_MON_MEM_FRAG 686 /* 687 * dp_rx_desc_frag_free() - free the sw rx desc frag called during 688 * de-initialization of wifi module. 689 * 690 * @soc: core txrx main context 691 * @rx_desc_pool: rx descriptor pool pointer 692 * 693 * Return: None 694 */ 695 void dp_rx_desc_frag_free(struct dp_soc *soc, 696 struct rx_desc_pool *rx_desc_pool); 697 #else 698 static inline 699 void dp_rx_desc_frag_free(struct dp_soc *soc, 700 struct rx_desc_pool *rx_desc_pool) 701 { 702 } 703 #endif 704 /* 705 * dp_rx_desc_pool_free() - free the sw rx desc array called during 706 * de-initialization of wifi module. 707 * 708 * @soc: core txrx main context 709 * @rx_desc_pool: rx descriptor pool pointer 710 * 711 * Return: None 712 */ 713 void dp_rx_desc_pool_free(struct dp_soc *soc, 714 struct rx_desc_pool *rx_desc_pool); 715 716 void dp_rx_deliver_raw(struct dp_vdev *vdev, qdf_nbuf_t nbuf_list, 717 struct dp_peer *peer); 718 719 #ifdef RX_DESC_DEBUG_CHECK 720 /** 721 * dp_rx_desc_paddr_sanity_check() - paddr sanity for ring desc vs rx_desc 722 * @rx_desc: rx descriptor 723 * @ring_paddr: paddr obatined from the ring 724 * 725 * Returns: QDF_STATUS 726 */ 727 static inline 728 bool dp_rx_desc_paddr_sanity_check(struct dp_rx_desc *rx_desc, 729 uint64_t ring_paddr) 730 { 731 return (ring_paddr == qdf_nbuf_get_frag_paddr(rx_desc->nbuf, 0)); 732 } 733 734 /* 735 * dp_rx_desc_alloc_dbg_info() - Alloc memory for rx descriptor debug 736 * structure 737 * @rx_desc: rx descriptor pointer 738 * 739 * Return: None 740 */ 741 static inline 742 void dp_rx_desc_alloc_dbg_info(struct dp_rx_desc *rx_desc) 743 { 744 rx_desc->dbg_info = qdf_mem_malloc(sizeof(struct dp_rx_desc_dbg_info)); 745 } 746 747 /* 748 * dp_rx_desc_free_dbg_info() - Free rx descriptor debug 749 * structure memory 750 * @rx_desc: rx descriptor pointer 751 * 752 * Return: None 753 */ 754 static inline 755 void dp_rx_desc_free_dbg_info(struct dp_rx_desc *rx_desc) 756 { 757 qdf_mem_free(rx_desc->dbg_info); 758 } 759 760 /* 761 * dp_rx_desc_update_dbg_info() - Update rx descriptor debug info 762 * structure memory 763 * @rx_desc: rx descriptor pointer 764 * 765 * Return: None 766 */ 767 static 768 void dp_rx_desc_update_dbg_info(struct dp_rx_desc *rx_desc, 769 const char *func_name, uint8_t flag) 770 { 771 struct dp_rx_desc_dbg_info *info = rx_desc->dbg_info; 772 773 if (!info) 774 return; 775 776 if (flag == RX_DESC_REPLENISHED) { 777 qdf_str_lcopy(info->replenish_caller, func_name, 778 QDF_MEM_FUNC_NAME_SIZE); 779 info->replenish_ts = qdf_get_log_timestamp(); 780 } else { 781 qdf_str_lcopy(info->freelist_caller, func_name, 782 QDF_MEM_FUNC_NAME_SIZE); 783 info->freelist_ts = qdf_get_log_timestamp(); 784 } 785 } 786 #else 787 788 static inline 789 bool dp_rx_desc_paddr_sanity_check(struct dp_rx_desc *rx_desc, 790 uint64_t ring_paddr) 791 { 792 return true; 793 } 794 795 static inline 796 void dp_rx_desc_alloc_dbg_info(struct dp_rx_desc *rx_desc) 797 { 798 } 799 800 static inline 801 void dp_rx_desc_free_dbg_info(struct dp_rx_desc *rx_desc) 802 { 803 } 804 805 static inline 806 void dp_rx_desc_update_dbg_info(struct dp_rx_desc *rx_desc, 807 const char *func_name, uint8_t flag) 808 { 809 } 810 #endif /* RX_DESC_DEBUG_CHECK */ 811 812 /** 813 * dp_rx_add_to_free_desc_list() - Adds to a local free descriptor list 814 * 815 * @head: pointer to the head of local free list 816 * @tail: pointer to the tail of local free list 817 * @new: new descriptor that is added to the free list 818 * @func_name: caller func name 819 * 820 * Return: void: 821 */ 822 static inline 823 void __dp_rx_add_to_free_desc_list(union dp_rx_desc_list_elem_t **head, 824 union dp_rx_desc_list_elem_t **tail, 825 struct dp_rx_desc *new, const char *func_name) 826 { 827 qdf_assert(head && new); 828 829 new->nbuf = NULL; 830 new->in_use = 0; 831 832 ((union dp_rx_desc_list_elem_t *)new)->next = *head; 833 *head = (union dp_rx_desc_list_elem_t *)new; 834 /* reset tail if head->next is NULL */ 835 if (!*tail || !(*head)->next) 836 *tail = *head; 837 838 dp_rx_desc_update_dbg_info(new, func_name, RX_DESC_IN_FREELIST); 839 } 840 841 uint8_t dp_rx_process_invalid_peer(struct dp_soc *soc, qdf_nbuf_t nbuf, 842 uint8_t mac_id); 843 void dp_rx_process_invalid_peer_wrapper(struct dp_soc *soc, 844 qdf_nbuf_t mpdu, bool mpdu_done, uint8_t mac_id); 845 void dp_rx_process_mic_error(struct dp_soc *soc, qdf_nbuf_t nbuf, 846 uint8_t *rx_tlv_hdr, struct dp_peer *peer); 847 void dp_2k_jump_handle(struct dp_soc *soc, qdf_nbuf_t nbuf, uint8_t *rx_tlv_hdr, 848 uint16_t peer_id, uint8_t tid); 849 850 #define DP_RX_HEAD_APPEND(head, elem) \ 851 do { \ 852 qdf_nbuf_set_next((elem), (head)); \ 853 (head) = (elem); \ 854 } while (0) 855 856 857 #define DP_RX_LIST_APPEND(head, tail, elem) \ 858 do { \ 859 if (!(head)) { \ 860 (head) = (elem); \ 861 QDF_NBUF_CB_RX_NUM_ELEMENTS_IN_LIST(head) = 1;\ 862 } else { \ 863 qdf_nbuf_set_next((tail), (elem)); \ 864 QDF_NBUF_CB_RX_NUM_ELEMENTS_IN_LIST(head)++; \ 865 } \ 866 (tail) = (elem); \ 867 qdf_nbuf_set_next((tail), NULL); \ 868 } while (0) 869 870 #define DP_RX_MERGE_TWO_LIST(phead, ptail, chead, ctail) \ 871 do { \ 872 if (!(phead)) { \ 873 (phead) = (chead); \ 874 } else { \ 875 qdf_nbuf_set_next((ptail), (chead)); \ 876 QDF_NBUF_CB_RX_NUM_ELEMENTS_IN_LIST(phead) += \ 877 QDF_NBUF_CB_RX_NUM_ELEMENTS_IN_LIST(chead); \ 878 } \ 879 (ptail) = (ctail); \ 880 qdf_nbuf_set_next((ptail), NULL); \ 881 } while (0) 882 883 /*for qcn9000 emulation the pcie is complete phy and no address restrictions*/ 884 #if !defined(BUILD_X86) || defined(QCA_WIFI_QCN9000) 885 static inline int check_x86_paddr(struct dp_soc *dp_soc, qdf_nbuf_t *rx_netbuf, 886 qdf_dma_addr_t *paddr, struct rx_desc_pool *rx_desc_pool) 887 { 888 return QDF_STATUS_SUCCESS; 889 } 890 #else 891 #define MAX_RETRY 100 892 static inline int check_x86_paddr(struct dp_soc *dp_soc, qdf_nbuf_t *rx_netbuf, 893 qdf_dma_addr_t *paddr, struct rx_desc_pool *rx_desc_pool) 894 { 895 uint32_t nbuf_retry = 0; 896 int32_t ret; 897 const uint32_t x86_phy_addr = 0x50000000; 898 /* 899 * in M2M emulation platforms (x86) the memory below 0x50000000 900 * is reserved for target use, so any memory allocated in this 901 * region should not be used by host 902 */ 903 do { 904 if (qdf_likely(*paddr > x86_phy_addr)) 905 return QDF_STATUS_SUCCESS; 906 else { 907 QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_INFO, 908 "phy addr %pK exceeded 0x50000000 trying again", 909 paddr); 910 911 nbuf_retry++; 912 if ((*rx_netbuf)) { 913 qdf_nbuf_unmap_single(dp_soc->osdev, *rx_netbuf, 914 QDF_DMA_FROM_DEVICE); 915 /* Not freeing buffer intentionally. 916 * Observed that same buffer is getting 917 * re-allocated resulting in longer load time 918 * WMI init timeout. 919 * This buffer is anyway not useful so skip it. 920 **/ 921 } 922 923 *rx_netbuf = qdf_nbuf_alloc(dp_soc->osdev, 924 rx_desc_pool->buf_size, 925 RX_BUFFER_RESERVATION, 926 rx_desc_pool->buf_alignment, 927 FALSE); 928 929 if (qdf_unlikely(!(*rx_netbuf))) 930 return QDF_STATUS_E_FAILURE; 931 932 ret = qdf_nbuf_map_single(dp_soc->osdev, *rx_netbuf, 933 QDF_DMA_FROM_DEVICE); 934 935 if (qdf_unlikely(ret == QDF_STATUS_E_FAILURE)) { 936 qdf_nbuf_free(*rx_netbuf); 937 *rx_netbuf = NULL; 938 continue; 939 } 940 941 *paddr = qdf_nbuf_get_frag_paddr(*rx_netbuf, 0); 942 } 943 } while (nbuf_retry < MAX_RETRY); 944 945 if ((*rx_netbuf)) { 946 qdf_nbuf_unmap_single(dp_soc->osdev, *rx_netbuf, 947 QDF_DMA_FROM_DEVICE); 948 qdf_nbuf_free(*rx_netbuf); 949 } 950 951 return QDF_STATUS_E_FAILURE; 952 } 953 #endif 954 955 /** 956 * dp_rx_cookie_2_link_desc_va() - Converts cookie to a virtual address of 957 * the MSDU Link Descriptor 958 * @soc: core txrx main context 959 * @buf_info: buf_info includes cookie that is used to lookup 960 * virtual address of link descriptor after deriving the page id 961 * and the offset or index of the desc on the associatde page. 962 * 963 * This is the VA of the link descriptor, that HAL layer later uses to 964 * retrieve the list of MSDU's for a given MPDU. 965 * 966 * Return: void *: Virtual Address of the Rx descriptor 967 */ 968 static inline 969 void *dp_rx_cookie_2_link_desc_va(struct dp_soc *soc, 970 struct hal_buf_info *buf_info) 971 { 972 void *link_desc_va; 973 struct qdf_mem_multi_page_t *pages; 974 uint16_t page_id = LINK_DESC_COOKIE_PAGE_ID(buf_info->sw_cookie); 975 976 pages = &soc->link_desc_pages; 977 if (!pages) 978 return NULL; 979 if (qdf_unlikely(page_id >= pages->num_pages)) 980 return NULL; 981 link_desc_va = pages->dma_pages[page_id].page_v_addr_start + 982 (buf_info->paddr - pages->dma_pages[page_id].page_p_addr); 983 return link_desc_va; 984 } 985 986 /** 987 * dp_rx_cookie_2_mon_link_desc_va() - Converts cookie to a virtual address of 988 * the MSDU Link Descriptor 989 * @pdev: core txrx pdev context 990 * @buf_info: buf_info includes cookie that used to lookup virtual address of 991 * link descriptor. Normally this is just an index into a per pdev array. 992 * 993 * This is the VA of the link descriptor in monitor mode destination ring, 994 * that HAL layer later uses to retrieve the list of MSDU's for a given MPDU. 995 * 996 * Return: void *: Virtual Address of the Rx descriptor 997 */ 998 static inline 999 void *dp_rx_cookie_2_mon_link_desc_va(struct dp_pdev *pdev, 1000 struct hal_buf_info *buf_info, 1001 int mac_id) 1002 { 1003 void *link_desc_va; 1004 struct qdf_mem_multi_page_t *pages; 1005 uint16_t page_id = LINK_DESC_COOKIE_PAGE_ID(buf_info->sw_cookie); 1006 1007 pages = &pdev->soc->mon_link_desc_pages[mac_id]; 1008 if (!pages) 1009 return NULL; 1010 1011 if (qdf_unlikely(page_id >= pages->num_pages)) 1012 return NULL; 1013 1014 link_desc_va = pages->dma_pages[page_id].page_v_addr_start + 1015 (buf_info->paddr - pages->dma_pages[page_id].page_p_addr); 1016 1017 return link_desc_va; 1018 } 1019 1020 /** 1021 * dp_rx_defrag_concat() - Concatenate the fragments 1022 * 1023 * @dst: destination pointer to the buffer 1024 * @src: source pointer from where the fragment payload is to be copied 1025 * 1026 * Return: QDF_STATUS 1027 */ 1028 static inline QDF_STATUS dp_rx_defrag_concat(qdf_nbuf_t dst, qdf_nbuf_t src) 1029 { 1030 /* 1031 * Inside qdf_nbuf_cat, if it is necessary to reallocate dst 1032 * to provide space for src, the headroom portion is copied from 1033 * the original dst buffer to the larger new dst buffer. 1034 * (This is needed, because the headroom of the dst buffer 1035 * contains the rx desc.) 1036 */ 1037 if (!qdf_nbuf_cat(dst, src)) { 1038 /* 1039 * qdf_nbuf_cat does not free the src memory. 1040 * Free src nbuf before returning 1041 * For failure case the caller takes of freeing the nbuf 1042 */ 1043 qdf_nbuf_free(src); 1044 return QDF_STATUS_SUCCESS; 1045 } 1046 1047 return QDF_STATUS_E_DEFRAG_ERROR; 1048 } 1049 1050 #ifndef FEATURE_WDS 1051 static inline QDF_STATUS dp_rx_ast_set_active(struct dp_soc *soc, uint16_t sa_idx, bool is_active) 1052 { 1053 return QDF_STATUS_SUCCESS; 1054 } 1055 1056 static inline void 1057 dp_rx_wds_srcport_learn(struct dp_soc *soc, 1058 uint8_t *rx_tlv_hdr, 1059 struct dp_peer *ta_peer, 1060 qdf_nbuf_t nbuf, 1061 struct hal_rx_msdu_metadata msdu_metadata) 1062 { 1063 } 1064 #endif 1065 1066 /* 1067 * dp_rx_desc_dump() - dump the sw rx descriptor 1068 * 1069 * @rx_desc: sw rx descriptor 1070 */ 1071 static inline void dp_rx_desc_dump(struct dp_rx_desc *rx_desc) 1072 { 1073 dp_info("rx_desc->nbuf: %pK, rx_desc->cookie: %d, rx_desc->pool_id: %d, rx_desc->in_use: %d, rx_desc->unmapped: %d", 1074 rx_desc->nbuf, rx_desc->cookie, rx_desc->pool_id, 1075 rx_desc->in_use, rx_desc->unmapped); 1076 } 1077 1078 /* 1079 * check_qwrap_multicast_loopback() - Check if rx packet is a loopback packet. 1080 * In qwrap mode, packets originated from 1081 * any vdev should not loopback and 1082 * should be dropped. 1083 * @vdev: vdev on which rx packet is received 1084 * @nbuf: rx pkt 1085 * 1086 */ 1087 #if ATH_SUPPORT_WRAP 1088 static inline bool check_qwrap_multicast_loopback(struct dp_vdev *vdev, 1089 qdf_nbuf_t nbuf) 1090 { 1091 struct dp_vdev *psta_vdev; 1092 struct dp_pdev *pdev = vdev->pdev; 1093 uint8_t *data = qdf_nbuf_data(nbuf); 1094 1095 if (qdf_unlikely(vdev->proxysta_vdev)) { 1096 /* In qwrap isolation mode, allow loopback packets as all 1097 * packets go to RootAP and Loopback on the mpsta. 1098 */ 1099 if (vdev->isolation_vdev) 1100 return false; 1101 TAILQ_FOREACH(psta_vdev, &pdev->vdev_list, vdev_list_elem) { 1102 if (qdf_unlikely(psta_vdev->proxysta_vdev && 1103 !qdf_mem_cmp(psta_vdev->mac_addr.raw, 1104 &data[QDF_MAC_ADDR_SIZE], 1105 QDF_MAC_ADDR_SIZE))) { 1106 /* Drop packet if source address is equal to 1107 * any of the vdev addresses. 1108 */ 1109 return true; 1110 } 1111 } 1112 } 1113 return false; 1114 } 1115 #else 1116 static inline bool check_qwrap_multicast_loopback(struct dp_vdev *vdev, 1117 qdf_nbuf_t nbuf) 1118 { 1119 return false; 1120 } 1121 #endif 1122 1123 #if defined(WLAN_SUPPORT_RX_PROTOCOL_TYPE_TAG) ||\ 1124 defined(WLAN_SUPPORT_RX_TAG_STATISTICS) ||\ 1125 defined(WLAN_SUPPORT_RX_FLOW_TAG) 1126 #include "dp_rx_tag.h" 1127 #endif 1128 1129 #ifndef WLAN_SUPPORT_RX_PROTOCOL_TYPE_TAG 1130 /** 1131 * dp_rx_update_protocol_tag() - Reads CCE metadata from the RX MSDU end TLV 1132 * and set the corresponding tag in QDF packet 1133 * @soc: core txrx main context 1134 * @vdev: vdev on which the packet is received 1135 * @nbuf: QDF pkt buffer on which the protocol tag should be set 1136 * @rx_tlv_hdr: rBbase address where the RX TLVs starts 1137 * @ring_index: REO ring number, not used for error & monitor ring 1138 * @is_reo_exception: flag to indicate if rx from REO ring or exception ring 1139 * @is_update_stats: flag to indicate whether to update stats or not 1140 * Return: void 1141 */ 1142 static inline void 1143 dp_rx_update_protocol_tag(struct dp_soc *soc, struct dp_vdev *vdev, 1144 qdf_nbuf_t nbuf, uint8_t *rx_tlv_hdr, 1145 uint16_t ring_index, 1146 bool is_reo_exception, bool is_update_stats) 1147 { 1148 } 1149 #endif /* WLAN_SUPPORT_RX_PROTOCOL_TYPE_TAG */ 1150 1151 #ifndef WLAN_SUPPORT_RX_FLOW_TAG 1152 /** 1153 * dp_rx_update_flow_tag() - Reads FSE metadata from the RX MSDU end TLV 1154 * and set the corresponding tag in QDF packet 1155 * @soc: core txrx main context 1156 * @vdev: vdev on which the packet is received 1157 * @nbuf: QDF pkt buffer on which the protocol tag should be set 1158 * @rx_tlv_hdr: base address where the RX TLVs starts 1159 * @is_update_stats: flag to indicate whether to update stats or not 1160 * 1161 * Return: void 1162 */ 1163 static inline void 1164 dp_rx_update_flow_tag(struct dp_soc *soc, struct dp_vdev *vdev, 1165 qdf_nbuf_t nbuf, uint8_t *rx_tlv_hdr, bool update_stats) 1166 { 1167 } 1168 #endif /* WLAN_SUPPORT_RX_FLOW_TAG */ 1169 1170 #if !defined(WLAN_SUPPORT_RX_PROTOCOL_TYPE_TAG) &&\ 1171 !defined(WLAN_SUPPORT_RX_FLOW_TAG) 1172 /** 1173 * dp_rx_mon_update_protocol_flow_tag() - Performs necessary checks for monitor 1174 * mode and then tags appropriate packets 1175 * @soc: core txrx main context 1176 * @vdev: pdev on which packet is received 1177 * @msdu: QDF packet buffer on which the protocol tag should be set 1178 * @rx_desc: base address where the RX TLVs start 1179 * Return: void 1180 */ 1181 static inline 1182 void dp_rx_mon_update_protocol_flow_tag(struct dp_soc *soc, 1183 struct dp_pdev *dp_pdev, 1184 qdf_nbuf_t msdu, void *rx_desc) 1185 { 1186 } 1187 #endif /* WLAN_SUPPORT_RX_PROTOCOL_TYPE_TAG || WLAN_SUPPORT_RX_FLOW_TAG */ 1188 1189 /* 1190 * dp_rx_buffers_replenish() - replenish rxdma ring with rx nbufs 1191 * called during dp rx initialization 1192 * and at the end of dp_rx_process. 1193 * 1194 * @soc: core txrx main context 1195 * @mac_id: mac_id which is one of 3 mac_ids 1196 * @dp_rxdma_srng: dp rxdma circular ring 1197 * @rx_desc_pool: Pointer to free Rx descriptor pool 1198 * @num_req_buffers: number of buffer to be replenished 1199 * @desc_list: list of descs if called from dp_rx_process 1200 * or NULL during dp rx initialization or out of buffer 1201 * interrupt. 1202 * @tail: tail of descs list 1203 * @func_name: name of the caller function 1204 * Return: return success or failure 1205 */ 1206 QDF_STATUS __dp_rx_buffers_replenish(struct dp_soc *dp_soc, uint32_t mac_id, 1207 struct dp_srng *dp_rxdma_srng, 1208 struct rx_desc_pool *rx_desc_pool, 1209 uint32_t num_req_buffers, 1210 union dp_rx_desc_list_elem_t **desc_list, 1211 union dp_rx_desc_list_elem_t **tail, 1212 const char *func_name); 1213 1214 /* 1215 * dp_pdev_rx_buffers_attach() - replenish rxdma ring with rx nbufs 1216 * called during dp rx initialization 1217 * 1218 * @soc: core txrx main context 1219 * @mac_id: mac_id which is one of 3 mac_ids 1220 * @dp_rxdma_srng: dp rxdma circular ring 1221 * @rx_desc_pool: Pointer to free Rx descriptor pool 1222 * @num_req_buffers: number of buffer to be replenished 1223 * 1224 * Return: return success or failure 1225 */ 1226 QDF_STATUS 1227 dp_pdev_rx_buffers_attach(struct dp_soc *dp_soc, uint32_t mac_id, 1228 struct dp_srng *dp_rxdma_srng, 1229 struct rx_desc_pool *rx_desc_pool, 1230 uint32_t num_req_buffers); 1231 1232 /** 1233 * dp_rx_link_desc_return() - Return a MPDU link descriptor to HW 1234 * (WBM), following error handling 1235 * 1236 * @soc: core DP main context 1237 * @buf_addr_info: opaque pointer to the REO error ring descriptor 1238 * @buf_addr_info: void pointer to the buffer_addr_info 1239 * @bm_action: put to idle_list or release to msdu_list 1240 * 1241 * Return: QDF_STATUS_E_FAILURE for failure else QDF_STATUS_SUCCESS 1242 */ 1243 QDF_STATUS 1244 dp_rx_link_desc_return(struct dp_soc *soc, hal_ring_desc_t ring_desc, 1245 uint8_t bm_action); 1246 1247 /** 1248 * dp_rx_link_desc_return_by_addr - Return a MPDU link descriptor to 1249 * (WBM) by address 1250 * 1251 * @soc: core DP main context 1252 * @link_desc_addr: link descriptor addr 1253 * 1254 * Return: QDF_STATUS_E_FAILURE for failure else QDF_STATUS_SUCCESS 1255 */ 1256 QDF_STATUS 1257 dp_rx_link_desc_return_by_addr(struct dp_soc *soc, 1258 hal_buff_addrinfo_t link_desc_addr, 1259 uint8_t bm_action); 1260 1261 /** 1262 * dp_rxdma_err_process() - RxDMA error processing functionality 1263 * @soc: core txrx main contex 1264 * @mac_id: mac id which is one of 3 mac_ids 1265 * @hal_ring: opaque pointer to the HAL Rx Ring, which will be serviced 1266 * @quota: No. of units (packets) that can be serviced in one shot. 1267 * 1268 * Return: num of buffers processed 1269 */ 1270 uint32_t 1271 dp_rxdma_err_process(struct dp_intr *int_ctx, struct dp_soc *soc, 1272 uint32_t mac_id, uint32_t quota); 1273 1274 void dp_rx_fill_mesh_stats(struct dp_vdev *vdev, qdf_nbuf_t nbuf, 1275 uint8_t *rx_tlv_hdr, struct dp_peer *peer); 1276 QDF_STATUS dp_rx_filter_mesh_packets(struct dp_vdev *vdev, qdf_nbuf_t nbuf, 1277 uint8_t *rx_tlv_hdr); 1278 1279 int dp_wds_rx_policy_check(uint8_t *rx_tlv_hdr, struct dp_vdev *vdev, 1280 struct dp_peer *peer); 1281 1282 /* 1283 * dp_rx_dump_info_and_assert() - dump RX Ring info and Rx Desc info 1284 * 1285 * @soc: core txrx main context 1286 * @hal_ring: opaque pointer to the HAL Rx Ring, which will be serviced 1287 * @ring_desc: opaque pointer to the RX ring descriptor 1288 * @rx_desc: host rx descriptor 1289 * 1290 * Return: void 1291 */ 1292 void dp_rx_dump_info_and_assert(struct dp_soc *soc, 1293 hal_ring_handle_t hal_ring_hdl, 1294 hal_ring_desc_t ring_desc, 1295 struct dp_rx_desc *rx_desc); 1296 1297 void dp_rx_compute_delay(struct dp_vdev *vdev, qdf_nbuf_t nbuf); 1298 1299 #ifdef QCA_PEER_EXT_STATS 1300 void dp_rx_compute_tid_delay(struct cdp_delay_tid_stats *stats, 1301 qdf_nbuf_t nbuf); 1302 #endif /* QCA_PEER_EXT_STATS */ 1303 1304 #ifdef RX_DESC_DEBUG_CHECK 1305 /** 1306 * dp_rx_desc_check_magic() - check the magic value in dp_rx_desc 1307 * @rx_desc: rx descriptor pointer 1308 * 1309 * Return: true, if magic is correct, else false. 1310 */ 1311 static inline bool dp_rx_desc_check_magic(struct dp_rx_desc *rx_desc) 1312 { 1313 if (qdf_unlikely(rx_desc->magic != DP_RX_DESC_MAGIC)) 1314 return false; 1315 1316 rx_desc->magic = 0; 1317 return true; 1318 } 1319 1320 /** 1321 * dp_rx_desc_prep() - prepare rx desc 1322 * @rx_desc: rx descriptor pointer to be prepared 1323 * @nbuf_frag_info_t: struct dp_rx_nbuf_frag_info * 1324 * 1325 * Note: assumption is that we are associating a nbuf which is mapped 1326 * 1327 * Return: none 1328 */ 1329 static inline 1330 void dp_rx_desc_prep(struct dp_rx_desc *rx_desc, 1331 struct dp_rx_nbuf_frag_info *nbuf_frag_info_t) 1332 { 1333 rx_desc->magic = DP_RX_DESC_MAGIC; 1334 rx_desc->nbuf = (nbuf_frag_info_t->virt_addr).nbuf; 1335 rx_desc->unmapped = 0; 1336 } 1337 1338 /** 1339 * dp_rx_desc_frag_prep() - prepare rx desc 1340 * @rx_desc: rx descriptor pointer to be prepared 1341 * @nbuf_frag_info_t: struct dp_rx_nbuf_frag_info * 1342 * 1343 * Note: assumption is that we frag address is mapped 1344 * 1345 * Return: none 1346 */ 1347 #ifdef DP_RX_MON_MEM_FRAG 1348 static inline 1349 void dp_rx_desc_frag_prep(struct dp_rx_desc *rx_desc, 1350 struct dp_rx_nbuf_frag_info *nbuf_frag_info_t) 1351 { 1352 rx_desc->magic = DP_RX_DESC_MAGIC; 1353 rx_desc->rx_buf_start = 1354 (uint8_t *)((nbuf_frag_info_t->virt_addr).vaddr); 1355 rx_desc->paddr_buf_start = nbuf_frag_info_t->paddr; 1356 rx_desc->unmapped = 0; 1357 } 1358 #else 1359 static inline 1360 void dp_rx_desc_frag_prep(struct dp_rx_desc *rx_desc, 1361 struct dp_rx_nbuf_frag_info *nbuf_frag_info_t) 1362 { 1363 } 1364 #endif /* DP_RX_MON_MEM_FRAG */ 1365 #else 1366 1367 static inline bool dp_rx_desc_check_magic(struct dp_rx_desc *rx_desc) 1368 { 1369 return true; 1370 } 1371 1372 static inline 1373 void dp_rx_desc_prep(struct dp_rx_desc *rx_desc, 1374 struct dp_rx_nbuf_frag_info *nbuf_frag_info_t) 1375 { 1376 rx_desc->nbuf = (nbuf_frag_info_t->virt_addr).nbuf; 1377 rx_desc->unmapped = 0; 1378 } 1379 1380 #ifdef DP_RX_MON_MEM_FRAG 1381 static inline 1382 void dp_rx_desc_frag_prep(struct dp_rx_desc *rx_desc, 1383 struct dp_rx_nbuf_frag_info *nbuf_frag_info_t) 1384 { 1385 rx_desc->rx_buf_start = 1386 (uint8_t *)((nbuf_frag_info_t->virt_addr).vaddr); 1387 rx_desc->paddr_buf_start = nbuf_frag_info_t->paddr; 1388 rx_desc->unmapped = 0; 1389 } 1390 #else 1391 static inline 1392 void dp_rx_desc_frag_prep(struct dp_rx_desc *rx_desc, 1393 struct dp_rx_nbuf_frag_info *nbuf_frag_info_t) 1394 { 1395 } 1396 #endif /* DP_RX_MON_MEM_FRAG */ 1397 1398 #endif /* RX_DESC_DEBUG_CHECK */ 1399 1400 void dp_rx_enable_mon_dest_frag(struct rx_desc_pool *rx_desc_pool, 1401 bool is_mon_dest_desc); 1402 1403 void dp_rx_process_rxdma_err(struct dp_soc *soc, qdf_nbuf_t nbuf, 1404 uint8_t *rx_tlv_hdr, struct dp_peer *peer, 1405 uint8_t err_code, uint8_t mac_id); 1406 1407 #ifndef QCA_MULTIPASS_SUPPORT 1408 static inline 1409 bool dp_rx_multipass_process(struct dp_peer *peer, qdf_nbuf_t nbuf, uint8_t tid) 1410 { 1411 return false; 1412 } 1413 #else 1414 bool dp_rx_multipass_process(struct dp_peer *peer, qdf_nbuf_t nbuf, 1415 uint8_t tid); 1416 #endif 1417 1418 #ifndef WLAN_RX_PKT_CAPTURE_ENH 1419 static inline 1420 QDF_STATUS dp_peer_set_rx_capture_enabled(struct dp_pdev *pdev, 1421 struct dp_peer *peer_handle, 1422 bool value, uint8_t *mac_addr) 1423 { 1424 return QDF_STATUS_SUCCESS; 1425 } 1426 #endif 1427 1428 /** 1429 * dp_rx_deliver_to_stack() - deliver pkts to network stack 1430 * Caller to hold peer refcount and check for valid peer 1431 * @soc: soc 1432 * @vdev: vdev 1433 * @peer: peer 1434 * @nbuf_head: skb list head 1435 * @nbuf_tail: skb list tail 1436 * 1437 * Return: None 1438 */ 1439 void dp_rx_deliver_to_stack(struct dp_soc *soc, 1440 struct dp_vdev *vdev, 1441 struct dp_peer *peer, 1442 qdf_nbuf_t nbuf_head, 1443 qdf_nbuf_t nbuf_tail); 1444 1445 #ifdef QCA_OL_RX_LOCK_LESS_ACCESS 1446 /* 1447 * dp_rx_ring_access_start()- Wrapper function to log access start of a hal ring 1448 * @int_ctx: pointer to DP interrupt context 1449 * @dp_soc - DP soc structure pointer 1450 * @hal_ring_hdl - HAL ring handle 1451 * 1452 * Return: 0 on success; error on failure 1453 */ 1454 static inline int 1455 dp_rx_srng_access_start(struct dp_intr *int_ctx, struct dp_soc *soc, 1456 hal_ring_handle_t hal_ring_hdl) 1457 { 1458 return hal_srng_access_start_unlocked(soc->hal_soc, hal_ring_hdl); 1459 } 1460 1461 /* 1462 * dp_rx_ring_access_end()- Wrapper function to log access end of a hal ring 1463 * @int_ctx: pointer to DP interrupt context 1464 * @dp_soc - DP soc structure pointer 1465 * @hal_ring_hdl - HAL ring handle 1466 * 1467 * Return - None 1468 */ 1469 static inline void 1470 dp_rx_srng_access_end(struct dp_intr *int_ctx, struct dp_soc *soc, 1471 hal_ring_handle_t hal_ring_hdl) 1472 { 1473 hal_srng_access_end_unlocked(soc->hal_soc, hal_ring_hdl); 1474 } 1475 #else 1476 static inline int 1477 dp_rx_srng_access_start(struct dp_intr *int_ctx, struct dp_soc *soc, 1478 hal_ring_handle_t hal_ring_hdl) 1479 { 1480 return dp_srng_access_start(int_ctx, soc, hal_ring_hdl); 1481 } 1482 1483 static inline void 1484 dp_rx_srng_access_end(struct dp_intr *int_ctx, struct dp_soc *soc, 1485 hal_ring_handle_t hal_ring_hdl) 1486 { 1487 dp_srng_access_end(int_ctx, soc, hal_ring_hdl); 1488 } 1489 #endif 1490 1491 /* 1492 * dp_rx_wbm_sg_list_reset() - Initialize sg list 1493 * 1494 * This api should be called at soc init and afterevery sg processing. 1495 *@soc: DP SOC handle 1496 */ 1497 static inline void dp_rx_wbm_sg_list_reset(struct dp_soc *soc) 1498 { 1499 if (soc) { 1500 soc->wbm_sg_param.wbm_is_first_msdu_in_sg = false; 1501 soc->wbm_sg_param.wbm_sg_nbuf_head = NULL; 1502 soc->wbm_sg_param.wbm_sg_nbuf_tail = NULL; 1503 soc->wbm_sg_param.wbm_sg_desc_msdu_len = 0; 1504 } 1505 } 1506 1507 /* 1508 * dp_rx_wbm_sg_list_deinit() - De-initialize sg list 1509 * 1510 * This api should be called in down path, to avoid any leak. 1511 *@soc: DP SOC handle 1512 */ 1513 static inline void dp_rx_wbm_sg_list_deinit(struct dp_soc *soc) 1514 { 1515 if (soc) { 1516 if (soc->wbm_sg_param.wbm_sg_nbuf_head) 1517 qdf_nbuf_list_free(soc->wbm_sg_param.wbm_sg_nbuf_head); 1518 1519 dp_rx_wbm_sg_list_reset(soc); 1520 } 1521 } 1522 1523 #ifdef WLAN_FEATURE_RX_PREALLOC_BUFFER_POOL 1524 #define DP_RX_PROCESS_NBUF(soc, head, tail, ebuf_head, ebuf_tail, rx_desc) \ 1525 do { \ 1526 if (!soc->rx_buff_pool[rx_desc->pool_id].is_initialized) { \ 1527 DP_RX_LIST_APPEND(head, tail, rx_desc->nbuf); \ 1528 break; \ 1529 } \ 1530 DP_RX_LIST_APPEND(ebuf_head, ebuf_tail, rx_desc->nbuf); \ 1531 if (!qdf_nbuf_is_rx_chfrag_cont(rx_desc->nbuf)) { \ 1532 if (!dp_rx_buffer_pool_refill(soc, ebuf_head, \ 1533 rx_desc->pool_id)) \ 1534 DP_RX_MERGE_TWO_LIST(head, tail, \ 1535 ebuf_head, ebuf_tail);\ 1536 ebuf_head = NULL; \ 1537 ebuf_tail = NULL; \ 1538 } \ 1539 } while (0) 1540 #else 1541 #define DP_RX_PROCESS_NBUF(soc, head, tail, ebuf_head, ebuf_tail, rx_desc) \ 1542 DP_RX_LIST_APPEND(head, tail, rx_desc->nbuf) 1543 #endif /* WLAN_FEATURE_RX_PREALLOC_BUFFER_POOL */ 1544 1545 /* 1546 * dp_rx_link_desc_refill_duplicate_check() - check if link desc duplicate 1547 to refill 1548 * @soc: DP SOC handle 1549 * @buf_info: the last link desc buf info 1550 * @ring_buf_info: current buf address pointor including link desc 1551 * 1552 * return: none. 1553 */ 1554 void dp_rx_link_desc_refill_duplicate_check( 1555 struct dp_soc *soc, 1556 struct hal_buf_info *buf_info, 1557 hal_buff_addrinfo_t ring_buf_info); 1558 #endif /* _DP_RX_H */ 1559