dp_tx.h 16 KB

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  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. #ifndef __DP_TX_H
  19. #define __DP_TX_H
  20. #include <qdf_types.h>
  21. #include <qdf_nbuf.h>
  22. #include "dp_types.h"
  23. #define DP_INVALID_VDEV_ID 0xFF
  24. #define DP_TX_MAX_NUM_FRAGS 6
  25. #define DP_TX_DESC_FLAG_SIMPLE 0x1
  26. #define DP_TX_DESC_FLAG_TO_FW 0x2
  27. #define DP_TX_DESC_FLAG_FRAG 0x4
  28. #define DP_TX_DESC_FLAG_RAW 0x8
  29. #define DP_TX_DESC_FLAG_MESH 0x10
  30. #define DP_TX_DESC_FLAG_QUEUED_TX 0x20
  31. #define DP_TX_DESC_FLAG_COMPLETED_TX 0x40
  32. #define DP_TX_DESC_FLAG_ME 0x80
  33. #define DP_TX_DESC_FLAG_TDLS_FRAME 0x100
  34. #define DP_TX_DESC_FLAG_ALLOCATED 0x200
  35. #define DP_TX_DESC_FLAG_MESH_MODE 0x400
  36. #define DP_TX_EXT_DESC_FLAG_METADATA_VALID 0x1
  37. #define DP_TX_FREE_SINGLE_BUF(soc, buf) \
  38. do { \
  39. qdf_nbuf_unmap(soc->osdev, buf, QDF_DMA_TO_DEVICE); \
  40. qdf_nbuf_free(buf); \
  41. } while (0)
  42. #define OCB_HEADER_VERSION 1
  43. #ifdef TX_PER_PDEV_DESC_POOL
  44. #ifdef QCA_LL_TX_FLOW_CONTROL_V2
  45. #define DP_TX_GET_DESC_POOL_ID(vdev) (vdev->vdev_id)
  46. #else /* QCA_LL_TX_FLOW_CONTROL_V2 */
  47. #define DP_TX_GET_DESC_POOL_ID(vdev) (vdev->pdev->pdev_id)
  48. #endif /* QCA_LL_TX_FLOW_CONTROL_V2 */
  49. #define DP_TX_GET_RING_ID(vdev) (vdev->pdev->pdev_id)
  50. #else
  51. #ifdef TX_PER_VDEV_DESC_POOL
  52. #define DP_TX_GET_DESC_POOL_ID(vdev) (vdev->vdev_id)
  53. #define DP_TX_GET_RING_ID(vdev) (vdev->pdev->pdev_id)
  54. #endif /* TX_PER_VDEV_DESC_POOL */
  55. #endif /* TX_PER_PDEV_DESC_POOL */
  56. #define DP_TX_QUEUE_MASK 0x3
  57. /* number of dwords for htt_tx_msdu_desc_ext2_t */
  58. #define DP_TX_MSDU_INFO_META_DATA_DWORDS 7
  59. /**
  60. * struct dp_tx_frag_info_s
  61. * @vaddr: hlos vritual address for buffer
  62. * @paddr_lo: physical address lower 32bits
  63. * @paddr_hi: physical address higher bits
  64. * @len: length of the buffer
  65. */
  66. struct dp_tx_frag_info_s {
  67. uint8_t *vaddr;
  68. uint32_t paddr_lo;
  69. uint16_t paddr_hi;
  70. uint16_t len;
  71. };
  72. /**
  73. * struct dp_tx_seg_info_s - Segmentation Descriptor
  74. * @nbuf: NBUF pointer if segment corresponds to separate nbuf
  75. * @frag_cnt: Fragment count in this segment
  76. * @total_len: Total length of segment
  77. * @frags: per-Fragment information
  78. * @next: pointer to next MSDU segment
  79. */
  80. struct dp_tx_seg_info_s {
  81. qdf_nbuf_t nbuf;
  82. uint16_t frag_cnt;
  83. uint16_t total_len;
  84. struct dp_tx_frag_info_s frags[DP_TX_MAX_NUM_FRAGS];
  85. struct dp_tx_seg_info_s *next;
  86. };
  87. /**
  88. * struct dp_tx_sg_info_s - Scatter Gather Descriptor
  89. * @num_segs: Number of segments (TSO/ME) in the frame
  90. * @total_len: Total length of the frame
  91. * @curr_seg: Points to current segment descriptor to be processed. Chain of
  92. * descriptors for SG frames/multicast-unicast converted packets.
  93. *
  94. * Used for SG (802.3 or Raw) frames and Multicast-Unicast converted frames to
  95. * carry fragmentation information
  96. * Raw Frames will be handed over to driver as an SKB chain with MPDU boundaries
  97. * indicated through flags in SKB CB (first_msdu and last_msdu). This will be
  98. * converted into set of skb sg (nr_frags) structures.
  99. */
  100. struct dp_tx_sg_info_s {
  101. uint32_t num_segs;
  102. uint32_t total_len;
  103. struct dp_tx_seg_info_s *curr_seg;
  104. };
  105. /**
  106. * struct dp_tx_queue - Tx queue
  107. * @desc_pool_id: Descriptor Pool to be used for the tx queue
  108. * @ring_id: TCL descriptor ring ID corresponding to the tx queue
  109. *
  110. * Tx queue contains information of the software (Descriptor pool)
  111. * and hardware resources (TCL ring id) to be used for a particular
  112. * transmit queue (obtained from skb_queue_mapping in case of linux)
  113. */
  114. struct dp_tx_queue {
  115. uint8_t desc_pool_id;
  116. uint8_t ring_id;
  117. };
  118. /**
  119. * struct dp_tx_msdu_info_s - MSDU Descriptor
  120. * @frm_type: Frame type - Regular/TSO/SG/Multicast enhancement
  121. * @tx_queue: Tx queue on which this MSDU should be transmitted
  122. * @num_seg: Number of segments (TSO)
  123. * @tid: TID (override) that is sent from HLOS
  124. * @u.tso_info: TSO information for TSO frame types
  125. * (chain of the TSO segments, number of segments)
  126. * @u.sg_info: Scatter Gather information for non-TSO SG frames
  127. * @meta_data: Mesh meta header information
  128. * @exception_fw: Duplicate frame to be sent to firmware
  129. * @ppdu_cookie: 16-bit ppdu_cookie that has to be replayed back in completions
  130. * @ix_tx_sniffer: Indicates if the packet has to be sniffed
  131. *
  132. * This structure holds the complete MSDU information needed to program the
  133. * Hardware TCL and MSDU extension descriptors for different frame types
  134. *
  135. */
  136. struct dp_tx_msdu_info_s {
  137. enum dp_tx_frm_type frm_type;
  138. struct dp_tx_queue tx_queue;
  139. uint32_t num_seg;
  140. uint8_t tid;
  141. union {
  142. struct qdf_tso_info_t tso_info;
  143. struct dp_tx_sg_info_s sg_info;
  144. } u;
  145. uint32_t meta_data[DP_TX_MSDU_INFO_META_DATA_DWORDS];
  146. uint8_t exception_fw;
  147. uint16_t ppdu_cookie;
  148. uint8_t is_tx_sniffer;
  149. };
  150. /**
  151. * dp_tx_deinit_pair_by_index() - Deinit TX rings based on index
  152. * @soc: core txrx context
  153. * @index: index of ring to deinit
  154. *
  155. * Deinit 1 TCL and 1 WBM2SW release ring on as needed basis using
  156. * index of the respective TCL/WBM2SW release in soc structure.
  157. * For example, if the index is 2 then &soc->tcl_data_ring[2]
  158. * and &soc->tx_comp_ring[2] will be deinitialized.
  159. *
  160. * Return: none
  161. */
  162. void dp_tx_deinit_pair_by_index(struct dp_soc *soc, int index);
  163. QDF_STATUS dp_tx_vdev_attach(struct dp_vdev *vdev);
  164. QDF_STATUS dp_tx_vdev_detach(struct dp_vdev *vdev);
  165. void dp_tx_vdev_update_search_flags(struct dp_vdev *vdev);
  166. void dp_tx_tso_cmn_desc_pool_deinit(struct dp_soc *soc, uint8_t num_pool);
  167. void dp_tx_tso_cmn_desc_pool_free(struct dp_soc *soc, uint8_t num_pool);
  168. QDF_STATUS dp_tx_tso_cmn_desc_pool_alloc(struct dp_soc *soc,
  169. uint8_t num_pool,
  170. uint16_t num_desc);
  171. QDF_STATUS dp_tx_tso_cmn_desc_pool_init(struct dp_soc *soc,
  172. uint8_t num_pool,
  173. uint16_t num_desc);
  174. QDF_STATUS dp_tx_pdev_detach(struct dp_pdev *pdev);
  175. QDF_STATUS dp_tx_pdev_attach(struct dp_pdev *pdev);
  176. void dp_tx_tso_cmn_desc_pool_deinit(struct dp_soc *soc, uint8_t num_pool);
  177. void dp_tx_tso_cmn_desc_pool_free(struct dp_soc *soc, uint8_t num_pool);
  178. void dp_soc_tx_desc_sw_pools_free(struct dp_soc *soc);
  179. void dp_soc_tx_desc_sw_pools_deinit(struct dp_soc *soc);
  180. QDF_STATUS dp_tx_tso_cmn_desc_pool_alloc(struct dp_soc *soc,
  181. uint8_t num_pool,
  182. uint16_t num_desc);
  183. QDF_STATUS dp_tx_tso_cmn_desc_pool_init(struct dp_soc *soc,
  184. uint8_t num_pool,
  185. uint16_t num_desc);
  186. QDF_STATUS dp_soc_tx_desc_sw_pools_alloc(struct dp_soc *soc);
  187. QDF_STATUS dp_soc_tx_desc_sw_pools_init(struct dp_soc *soc);
  188. /**
  189. * dp_tso_attach() - TSO Attach handler
  190. * @txrx_soc: Opaque Dp handle
  191. *
  192. * Reserve TSO descriptor buffers
  193. *
  194. * Return: QDF_STATUS_E_FAILURE on failure or
  195. * QDF_STATUS_SUCCESS on success
  196. */
  197. QDF_STATUS dp_tso_soc_attach(struct cdp_soc_t *txrx_soc);
  198. /**
  199. * dp_tso_detach() - TSO Detach handler
  200. * @txrx_soc: Opaque Dp handle
  201. *
  202. * Deallocate TSO descriptor buffers
  203. *
  204. * Return: QDF_STATUS_E_FAILURE on failure or
  205. * QDF_STATUS_SUCCESS on success
  206. */
  207. QDF_STATUS dp_tso_soc_detach(struct cdp_soc_t *txrx_soc);
  208. QDF_STATUS dp_tx_pdev_init(struct dp_pdev *pdev);
  209. qdf_nbuf_t dp_tx_send(struct cdp_soc_t *soc, uint8_t vdev_id, qdf_nbuf_t nbuf);
  210. qdf_nbuf_t dp_tx_send_exception(struct cdp_soc_t *soc, uint8_t vdev_id,
  211. qdf_nbuf_t nbuf,
  212. struct cdp_tx_exception_metadata *tx_exc);
  213. qdf_nbuf_t dp_tx_send_mesh(struct cdp_soc_t *soc, uint8_t vdev_id,
  214. qdf_nbuf_t nbuf);
  215. qdf_nbuf_t
  216. dp_tx_send_msdu_single(struct dp_vdev *vdev, qdf_nbuf_t nbuf,
  217. struct dp_tx_msdu_info_s *msdu_info, uint16_t peer_id,
  218. struct cdp_tx_exception_metadata *tx_exc_metadata);
  219. #if QDF_LOCK_STATS
  220. noinline qdf_nbuf_t
  221. dp_tx_send_msdu_multiple(struct dp_vdev *vdev, qdf_nbuf_t nbuf,
  222. struct dp_tx_msdu_info_s *msdu_info);
  223. #else
  224. qdf_nbuf_t dp_tx_send_msdu_multiple(struct dp_vdev *vdev, qdf_nbuf_t nbuf,
  225. struct dp_tx_msdu_info_s *msdu_info);
  226. #endif
  227. #ifdef FEATURE_WLAN_TDLS
  228. /**
  229. * dp_tx_non_std() - Allow the control-path SW to send data frames
  230. * @soc_hdl: Datapath soc handle
  231. * @vdev_id: id of vdev
  232. * @tx_spec: what non-standard handling to apply to the tx data frames
  233. * @msdu_list: NULL-terminated list of tx MSDUs
  234. *
  235. * Return: NULL on success,
  236. * nbuf when it fails to send
  237. */
  238. qdf_nbuf_t dp_tx_non_std(struct cdp_soc_t *soc_hdl, uint8_t vdev_id,
  239. enum ol_tx_spec tx_spec, qdf_nbuf_t msdu_list);
  240. #endif
  241. int dp_tx_frame_is_drop(struct dp_vdev *vdev, uint8_t *srcmac, uint8_t *dstmac);
  242. /**
  243. * dp_tx_comp_handler() - Tx completion handler
  244. * @int_ctx: pointer to DP interrupt context
  245. * @soc: core txrx main context
  246. * @hal_srng: Opaque HAL SRNG pointer
  247. * @ring_id: completion ring id
  248. * @quota: No. of packets/descriptors that can be serviced in one loop
  249. *
  250. * This function will collect hardware release ring element contents and
  251. * handle descriptor contents. Based on contents, free packet or handle error
  252. * conditions
  253. *
  254. * Return: Number of TX completions processed
  255. */
  256. uint32_t dp_tx_comp_handler(struct dp_intr *int_ctx, struct dp_soc *soc,
  257. hal_ring_handle_t hal_srng, uint8_t ring_id,
  258. uint32_t quota);
  259. QDF_STATUS
  260. dp_tx_prepare_send_me(struct dp_vdev *vdev, qdf_nbuf_t nbuf);
  261. QDF_STATUS
  262. dp_tx_prepare_send_igmp_me(struct dp_vdev *vdev, qdf_nbuf_t nbuf);
  263. #ifndef FEATURE_WDS
  264. static inline void dp_tx_mec_handler(struct dp_vdev *vdev, uint8_t *status)
  265. {
  266. return;
  267. }
  268. #endif
  269. #ifndef ATH_SUPPORT_IQUE
  270. static inline void dp_tx_me_exit(struct dp_pdev *pdev)
  271. {
  272. return;
  273. }
  274. #endif
  275. #ifndef QCA_MULTIPASS_SUPPORT
  276. static inline
  277. bool dp_tx_multipass_process(struct dp_soc *soc, struct dp_vdev *vdev,
  278. qdf_nbuf_t nbuf,
  279. struct dp_tx_msdu_info_s *msdu_info)
  280. {
  281. return true;
  282. }
  283. static inline
  284. void dp_tx_vdev_multipass_deinit(struct dp_vdev *vdev)
  285. {
  286. }
  287. #else
  288. bool dp_tx_multipass_process(struct dp_soc *soc, struct dp_vdev *vdev,
  289. qdf_nbuf_t nbuf,
  290. struct dp_tx_msdu_info_s *msdu_info);
  291. void dp_tx_vdev_multipass_deinit(struct dp_vdev *vdev);
  292. #endif
  293. /**
  294. * dp_tx_get_queue() - Returns Tx queue IDs to be used for this Tx frame
  295. * @vdev: DP Virtual device handle
  296. * @nbuf: Buffer pointer
  297. * @queue: queue ids container for nbuf
  298. *
  299. * TX packet queue has 2 instances, software descriptors id and dma ring id
  300. * Based on tx feature and hardware configuration queue id combination could be
  301. * different.
  302. * For example -
  303. * With XPS enabled,all TX descriptor pools and dma ring are assigned per cpu id
  304. * With no XPS,lock based resource protection, Descriptor pool ids are different
  305. * for each vdev, dma ring id will be same as single pdev id
  306. *
  307. * Return: None
  308. */
  309. #ifdef QCA_OL_TX_MULTIQ_SUPPORT
  310. static inline void dp_tx_get_queue(struct dp_vdev *vdev,
  311. qdf_nbuf_t nbuf, struct dp_tx_queue *queue)
  312. {
  313. uint16_t queue_offset = qdf_nbuf_get_queue_mapping(nbuf) &
  314. DP_TX_QUEUE_MASK;
  315. queue->desc_pool_id = queue_offset;
  316. queue->ring_id = qdf_get_cpu();
  317. QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_DEBUG,
  318. "%s, pool_id:%d ring_id: %d",
  319. __func__, queue->desc_pool_id, queue->ring_id);
  320. }
  321. /*
  322. * dp_tx_get_hal_ring_hdl()- Get the hal_tx_ring_hdl for data transmission
  323. * @dp_soc - DP soc structure pointer
  324. * @ring_id - Transmit Queue/ring_id to be used when XPS is enabled
  325. *
  326. * Return - HAL ring handle
  327. */
  328. static inline hal_ring_handle_t dp_tx_get_hal_ring_hdl(struct dp_soc *soc,
  329. uint8_t ring_id)
  330. {
  331. if (ring_id == soc->num_tcl_data_rings)
  332. return soc->tcl_cmd_credit_ring.hal_srng;
  333. return soc->tcl_data_ring[ring_id].hal_srng;
  334. }
  335. /*
  336. * dp_tx_get_rbm_id()- Get the RBM ID for data transmission completion.
  337. * @dp_soc - DP soc structure pointer
  338. * @ring_id - Transmit Queue/ring_id to be used when XPS is enabled
  339. *
  340. * Return - HAL ring handle
  341. */
  342. static inline uint8_t dp_tx_get_rbm_id(struct dp_soc *doc,
  343. uint8_t ring_id)
  344. {
  345. return (ring_id ? HAL_WBM_SW0_BM_ID + (ring_id - 1) :
  346. HAL_WBM_SW2_BM_ID);
  347. }
  348. #else /* QCA_OL_TX_MULTIQ_SUPPORT */
  349. static inline void dp_tx_get_queue(struct dp_vdev *vdev,
  350. qdf_nbuf_t nbuf, struct dp_tx_queue *queue)
  351. {
  352. /* get flow id */
  353. queue->desc_pool_id = DP_TX_GET_DESC_POOL_ID(vdev);
  354. queue->ring_id = DP_TX_GET_RING_ID(vdev);
  355. QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_DEBUG,
  356. "%s, pool_id:%d ring_id: %d",
  357. __func__, queue->desc_pool_id, queue->ring_id);
  358. }
  359. static inline hal_ring_handle_t dp_tx_get_hal_ring_hdl(struct dp_soc *soc,
  360. uint8_t ring_id)
  361. {
  362. return soc->tcl_data_ring[ring_id].hal_srng;
  363. }
  364. static inline uint8_t dp_tx_get_rbm_id(struct dp_soc *soc,
  365. uint8_t ring_id)
  366. {
  367. return (ring_id + HAL_WBM_SW0_BM_ID);
  368. }
  369. #endif
  370. #ifdef QCA_OL_TX_LOCK_LESS_ACCESS
  371. /*
  372. * dp_tx_hal_ring_access_start()- hal_tx_ring access for data transmission
  373. * @dp_soc - DP soc structure pointer
  374. * @hal_ring_hdl - HAL ring handle
  375. *
  376. * Return - None
  377. */
  378. static inline int dp_tx_hal_ring_access_start(struct dp_soc *soc,
  379. hal_ring_handle_t hal_ring_hdl)
  380. {
  381. return hal_srng_access_start_unlocked(soc->hal_soc, hal_ring_hdl);
  382. }
  383. /*
  384. * dp_tx_hal_ring_access_end()- hal_tx_ring access for data transmission
  385. * @dp_soc - DP soc structure pointer
  386. * @hal_ring_hdl - HAL ring handle
  387. *
  388. * Return - None
  389. */
  390. static inline void dp_tx_hal_ring_access_end(struct dp_soc *soc,
  391. hal_ring_handle_t hal_ring_hdl)
  392. {
  393. hal_srng_access_end_unlocked(soc->hal_soc, hal_ring_hdl);
  394. }
  395. /*
  396. * dp_tx_hal_ring_access_reap()- hal_tx_ring access for data transmission
  397. * @dp_soc - DP soc structure pointer
  398. * @hal_ring_hdl - HAL ring handle
  399. *
  400. * Return - None
  401. */
  402. static inline void dp_tx_hal_ring_access_end_reap(struct dp_soc *soc,
  403. hal_ring_handle_t
  404. hal_ring_hdl)
  405. {
  406. }
  407. #else
  408. static inline int dp_tx_hal_ring_access_start(struct dp_soc *soc,
  409. hal_ring_handle_t hal_ring_hdl)
  410. {
  411. return hal_srng_access_start(soc->hal_soc, hal_ring_hdl);
  412. }
  413. static inline void dp_tx_hal_ring_access_end(struct dp_soc *soc,
  414. hal_ring_handle_t hal_ring_hdl)
  415. {
  416. hal_srng_access_end(soc->hal_soc, hal_ring_hdl);
  417. }
  418. static inline void dp_tx_hal_ring_access_end_reap(struct dp_soc *soc,
  419. hal_ring_handle_t
  420. hal_ring_hdl)
  421. {
  422. hal_srng_access_end_reap(soc->hal_soc, hal_ring_hdl);
  423. }
  424. #endif
  425. #ifdef FEATURE_PERPKT_INFO
  426. QDF_STATUS
  427. dp_get_completion_indication_for_stack(struct dp_soc *soc,
  428. struct dp_pdev *pdev,
  429. struct dp_peer *peer,
  430. struct hal_tx_completion_status *ts,
  431. qdf_nbuf_t netbuf,
  432. uint64_t time_latency);
  433. void dp_send_completion_to_stack(struct dp_soc *soc, struct dp_pdev *pdev,
  434. uint16_t peer_id, uint32_t ppdu_id,
  435. qdf_nbuf_t netbuf);
  436. #endif
  437. void dp_iterate_update_peer_list(struct cdp_pdev *pdev_hdl);
  438. #ifdef ATH_TX_PRI_OVERRIDE
  439. #define DP_TX_TID_OVERRIDE(_msdu_info, _nbuf) \
  440. ((_msdu_info)->tid = qdf_nbuf_get_priority(_nbuf))
  441. #else
  442. #define DP_TX_TID_OVERRIDE(_msdu_info, _nbuf)
  443. #endif
  444. void
  445. dp_handle_wbm_internal_error(struct dp_soc *soc, void *hal_desc,
  446. uint32_t buf_type);
  447. /* TODO TX_FEATURE_NOT_YET */
  448. static inline void dp_tx_comp_process_exception(struct dp_tx_desc_s *tx_desc)
  449. {
  450. return;
  451. }
  452. /* TODO TX_FEATURE_NOT_YET */
  453. #ifndef WLAN_TX_PKT_CAPTURE_ENH
  454. static inline
  455. QDF_STATUS dp_peer_set_tx_capture_enabled(struct dp_pdev *pdev,
  456. struct dp_peer *peer_handle,
  457. uint8_t value, uint8_t *peer_mac)
  458. {
  459. return QDF_STATUS_SUCCESS;
  460. }
  461. #endif
  462. void dp_tx_desc_flush(struct dp_pdev *pdev, struct dp_vdev *vdev,
  463. bool force_free);
  464. #endif