/* * Copyright (c) 2016-2021 The Linux Foundation. All rights reserved. * Copyright (c) 2021-2022 Qualcomm Innovation Center, Inc. All rights reserved. * * Permission to use, copy, modify, and/or distribute this software for * any purpose with or without fee is hereby granted, provided that the * above copyright notice and this permission notice appear in all * copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR * PERFORMANCE OF THIS SOFTWARE. */ #include "htt.h" #include "dp_htt.h" #include "hal_hw_headers.h" #include "dp_tx.h" #include "dp_tx_desc.h" #include "dp_peer.h" #include "dp_types.h" #include "hal_tx.h" #include "qdf_mem.h" #include "qdf_nbuf.h" #include "qdf_net_types.h" #include "qdf_module.h" #include #include "dp_ipa.h" #if defined(MESH_MODE_SUPPORT) || defined(FEATURE_PERPKT_INFO) #include "if_meta_hdr.h" #endif #include "enet.h" #include "dp_internal.h" #ifdef ATH_SUPPORT_IQUE #include "dp_txrx_me.h" #endif #include "dp_hist.h" #ifdef WLAN_DP_FEATURE_SW_LATENCY_MGR #include #endif #ifdef WIFI_MONITOR_SUPPORT #include #endif #ifdef FEATURE_WDS #include "dp_txrx_wds.h" #endif #include "cdp_txrx_cmn_reg.h" /* Flag to skip CCE classify when mesh or tid override enabled */ #define DP_TX_SKIP_CCE_CLASSIFY \ (DP_TXRX_HLOS_TID_OVERRIDE_ENABLED | DP_TX_MESH_ENABLED) /* TODO Add support in TSO */ #define DP_DESC_NUM_FRAG(x) 0 /* disable TQM_BYPASS */ #define TQM_BYPASS_WAR 0 /* invalid peer id for reinject*/ #define DP_INVALID_PEER 0XFFFE #define DP_RETRY_COUNT 7 #ifdef WLAN_MCAST_MLO #define DP_TX_TCL_METADATA_PDEV_ID_SET(_var, _val)\ HTT_TX_TCL_METADATA_V2_PDEV_ID_SET(_var, _val) #define DP_TX_TCL_METADATA_VALID_HTT_SET(_var, _val) \ HTT_TX_TCL_METADATA_V2_VALID_HTT_SET(_var, _val) #define DP_TX_TCL_METADATA_TYPE_SET(_var, _val) \ HTT_TX_TCL_METADATA_TYPE_V2_SET(_var, _val) #define DP_TX_TCL_METADATA_HOST_INSPECTED_SET(_var, _val) \ HTT_TX_TCL_METADATA_V2_HOST_INSPECTED_SET(_var, _val) #define DP_TX_TCL_METADATA_PEER_ID_SET(_var, _val) \ HTT_TX_TCL_METADATA_V2_PEER_ID_SET(_var, _val) #define DP_TX_TCL_METADATA_VDEV_ID_SET(_var, _val) \ HTT_TX_TCL_METADATA_V2_VDEV_ID_SET(_var, _val) #define DP_TCL_METADATA_TYPE_PEER_BASED \ HTT_TCL_METADATA_V2_TYPE_PEER_BASED #define DP_TCL_METADATA_TYPE_VDEV_BASED \ HTT_TCL_METADATA_V2_TYPE_VDEV_BASED #else #define DP_TX_TCL_METADATA_PDEV_ID_SET(_var, _val)\ HTT_TX_TCL_METADATA_PDEV_ID_SET(_var, _val) #define DP_TX_TCL_METADATA_VALID_HTT_SET(_var, _val) \ HTT_TX_TCL_METADATA_VALID_HTT_SET(_var, _val) #define DP_TX_TCL_METADATA_TYPE_SET(_var, _val) \ HTT_TX_TCL_METADATA_TYPE_SET(_var, _val) #define DP_TX_TCL_METADATA_HOST_INSPECTED_SET(_var, _val) \ HTT_TX_TCL_METADATA_HOST_INSPECTED_SET(_var, _val) #define DP_TX_TCL_METADATA_PEER_ID_SET(_var, _val) \ HTT_TX_TCL_METADATA_PEER_ID_SET(_var, _val) #define DP_TX_TCL_METADATA_VDEV_ID_SET(_var, _val) \ HTT_TX_TCL_METADATA_VDEV_ID_SET(_var, _val) #define DP_TCL_METADATA_TYPE_PEER_BASED \ HTT_TCL_METADATA_TYPE_PEER_BASED #define DP_TCL_METADATA_TYPE_VDEV_BASED \ HTT_TCL_METADATA_TYPE_VDEV_BASED #endif /*mapping between hal encrypt type and cdp_sec_type*/ uint8_t sec_type_map[MAX_CDP_SEC_TYPE] = {HAL_TX_ENCRYPT_TYPE_NO_CIPHER, HAL_TX_ENCRYPT_TYPE_WEP_128, HAL_TX_ENCRYPT_TYPE_WEP_104, HAL_TX_ENCRYPT_TYPE_WEP_40, HAL_TX_ENCRYPT_TYPE_TKIP_WITH_MIC, HAL_TX_ENCRYPT_TYPE_TKIP_NO_MIC, HAL_TX_ENCRYPT_TYPE_AES_CCMP_128, HAL_TX_ENCRYPT_TYPE_WAPI, HAL_TX_ENCRYPT_TYPE_AES_CCMP_256, HAL_TX_ENCRYPT_TYPE_AES_GCMP_128, HAL_TX_ENCRYPT_TYPE_AES_GCMP_256, HAL_TX_ENCRYPT_TYPE_WAPI_GCM_SM4}; qdf_export_symbol(sec_type_map); #ifdef CONFIG_WLAN_SYSFS_MEM_STATS /** * dp_update_tx_desc_stats - Update the increase or decrease in * outstanding tx desc count * values on pdev and soc * @vdev: DP pdev handle * * Return: void */ static inline void dp_update_tx_desc_stats(struct dp_pdev *pdev) { int32_t tx_descs_cnt = qdf_atomic_read(&pdev->num_tx_outstanding); if (pdev->tx_descs_max < tx_descs_cnt) pdev->tx_descs_max = tx_descs_cnt; qdf_mem_tx_desc_cnt_update(pdev->num_tx_outstanding, pdev->tx_descs_max); } #else /* CONFIG_WLAN_SYSFS_MEM_STATS */ static inline void dp_update_tx_desc_stats(struct dp_pdev *pdev) { } #endif /* CONFIG_WLAN_SYSFS_MEM_STATS */ #if defined(WLAN_TX_PKT_CAPTURE_ENH) || defined(FEATURE_PERPKT_INFO) static inline void dp_tx_enh_unmap(struct dp_soc *soc, struct dp_tx_desc_s *desc) { qdf_nbuf_unmap_nbytes_single(soc->osdev, desc->nbuf, QDF_DMA_TO_DEVICE, desc->nbuf->len); desc->flags |= DP_TX_DESC_FLAG_UNMAP_DONE; } static inline void dp_tx_unmap(struct dp_soc *soc, struct dp_tx_desc_s *desc) { if (qdf_likely(!(desc->flags & DP_TX_DESC_FLAG_UNMAP_DONE))) qdf_nbuf_unmap_nbytes_single(soc->osdev, desc->nbuf, QDF_DMA_TO_DEVICE, desc->nbuf->len); } #else static inline void dp_tx_enh_unmap(struct dp_soc *soc, struct dp_tx_desc_s *desc) { } static inline void dp_tx_unmap(struct dp_soc *soc, struct dp_tx_desc_s *desc) { qdf_nbuf_unmap_nbytes_single(soc->osdev, desc->nbuf, QDF_DMA_TO_DEVICE, desc->nbuf->len); } #endif #ifdef QCA_TX_LIMIT_CHECK /** * dp_tx_limit_check - Check if allocated tx descriptors reached * soc max limit and pdev max limit * @vdev: DP vdev handle * * Return: true if allocated tx descriptors reached max configured value, else * false */ static inline bool dp_tx_limit_check(struct dp_vdev *vdev) { struct dp_pdev *pdev = vdev->pdev; struct dp_soc *soc = pdev->soc; if (qdf_atomic_read(&soc->num_tx_outstanding) >= soc->num_tx_allowed) { dp_tx_info("queued packets are more than max tx, drop the frame"); DP_STATS_INC(vdev, tx_i.dropped.desc_na.num, 1); return true; } if (qdf_atomic_read(&pdev->num_tx_outstanding) >= pdev->num_tx_allowed) { dp_tx_info("queued packets are more than max tx, drop the frame"); DP_STATS_INC(vdev, tx_i.dropped.desc_na.num, 1); DP_STATS_INC(vdev, tx_i.dropped.desc_na_exc_outstand.num, 1); return true; } return false; } /** * dp_tx_exception_limit_check - Check if allocated tx exception descriptors * reached soc max limit * @vdev: DP vdev handle * * Return: true if allocated tx descriptors reached max configured value, else * false */ static inline bool dp_tx_exception_limit_check(struct dp_vdev *vdev) { struct dp_pdev *pdev = vdev->pdev; struct dp_soc *soc = pdev->soc; if (qdf_atomic_read(&soc->num_tx_exception) >= soc->num_msdu_exception_desc) { dp_info("exc packets are more than max drop the exc pkt"); DP_STATS_INC(vdev, tx_i.dropped.exc_desc_na.num, 1); return true; } return false; } /** * dp_tx_outstanding_inc - Increment outstanding tx desc values on pdev and soc * @vdev: DP pdev handle * * Return: void */ static inline void dp_tx_outstanding_inc(struct dp_pdev *pdev) { struct dp_soc *soc = pdev->soc; qdf_atomic_inc(&pdev->num_tx_outstanding); qdf_atomic_inc(&soc->num_tx_outstanding); dp_update_tx_desc_stats(pdev); } /** * dp_tx_outstanding__dec - Decrement outstanding tx desc values on pdev and soc * @vdev: DP pdev handle * * Return: void */ static inline void dp_tx_outstanding_dec(struct dp_pdev *pdev) { struct dp_soc *soc = pdev->soc; qdf_atomic_dec(&pdev->num_tx_outstanding); qdf_atomic_dec(&soc->num_tx_outstanding); dp_update_tx_desc_stats(pdev); } #else //QCA_TX_LIMIT_CHECK static inline bool dp_tx_limit_check(struct dp_vdev *vdev) { return false; } static inline bool dp_tx_exception_limit_check(struct dp_vdev *vdev) { return false; } static inline void dp_tx_outstanding_inc(struct dp_pdev *pdev) { qdf_atomic_inc(&pdev->num_tx_outstanding); dp_update_tx_desc_stats(pdev); } static inline void dp_tx_outstanding_dec(struct dp_pdev *pdev) { qdf_atomic_dec(&pdev->num_tx_outstanding); dp_update_tx_desc_stats(pdev); } #endif //QCA_TX_LIMIT_CHECK #ifdef WLAN_FEATURE_DP_TX_DESC_HISTORY static inline enum dp_tx_event_type dp_tx_get_event_type(uint32_t flags) { enum dp_tx_event_type type; if (flags & DP_TX_DESC_FLAG_FLUSH) type = DP_TX_DESC_FLUSH; else if (flags & DP_TX_DESC_FLAG_TX_COMP_ERR) type = DP_TX_COMP_UNMAP_ERR; else if (flags & DP_TX_DESC_FLAG_COMPLETED_TX) type = DP_TX_COMP_UNMAP; else type = DP_TX_DESC_UNMAP; return type; } static inline void dp_tx_desc_history_add(struct dp_soc *soc, dma_addr_t paddr, qdf_nbuf_t skb, uint32_t sw_cookie, enum dp_tx_event_type type) { struct dp_tx_desc_event *entry; uint32_t idx; if (qdf_unlikely(!soc->tx_tcl_history || !soc->tx_comp_history)) return; switch (type) { case DP_TX_COMP_UNMAP: case DP_TX_COMP_UNMAP_ERR: case DP_TX_COMP_MSDU_EXT: idx = dp_history_get_next_index(&soc->tx_comp_history->index, DP_TX_COMP_HISTORY_SIZE); entry = &soc->tx_comp_history->entry[idx]; break; case DP_TX_DESC_MAP: case DP_TX_DESC_UNMAP: case DP_TX_DESC_COOKIE: case DP_TX_DESC_FLUSH: idx = dp_history_get_next_index(&soc->tx_tcl_history->index, DP_TX_TCL_HISTORY_SIZE); entry = &soc->tx_tcl_history->entry[idx]; break; default: dp_info_rl("Invalid dp_tx_event_type: %d", type); return; } entry->skb = skb; entry->paddr = paddr; entry->sw_cookie = sw_cookie; entry->type = type; entry->ts = qdf_get_log_timestamp(); } static inline void dp_tx_tso_seg_history_add(struct dp_soc *soc, struct qdf_tso_seg_elem_t *tso_seg, qdf_nbuf_t skb, uint32_t sw_cookie, enum dp_tx_event_type type) { int i; for (i = 1; i < tso_seg->seg.num_frags; i++) { dp_tx_desc_history_add(soc, tso_seg->seg.tso_frags[i].paddr, skb, sw_cookie, type); } if (!tso_seg->next) dp_tx_desc_history_add(soc, tso_seg->seg.tso_frags[0].paddr, skb, 0xFFFFFFFF, type); } static inline void dp_tx_tso_history_add(struct dp_soc *soc, struct qdf_tso_info_t tso_info, qdf_nbuf_t skb, uint32_t sw_cookie, enum dp_tx_event_type type) { struct qdf_tso_seg_elem_t *curr_seg = tso_info.tso_seg_list; uint32_t num_segs = tso_info.num_segs; while (num_segs) { dp_tx_tso_seg_history_add(soc, curr_seg, skb, sw_cookie, type); curr_seg = curr_seg->next; num_segs--; } } #else static inline enum dp_tx_event_type dp_tx_get_event_type(uint32_t flags) { return DP_TX_DESC_INVAL_EVT; } static inline void dp_tx_desc_history_add(struct dp_soc *soc, dma_addr_t paddr, qdf_nbuf_t skb, uint32_t sw_cookie, enum dp_tx_event_type type) { } static inline void dp_tx_tso_seg_history_add(struct dp_soc *soc, struct qdf_tso_seg_elem_t *tso_seg, qdf_nbuf_t skb, uint32_t sw_cookie, enum dp_tx_event_type type) { } static inline void dp_tx_tso_history_add(struct dp_soc *soc, struct qdf_tso_info_t tso_info, qdf_nbuf_t skb, uint32_t sw_cookie, enum dp_tx_event_type type) { } #endif /* WLAN_FEATURE_DP_TX_DESC_HISTORY */ static int dp_get_rtpm_tput_policy_requirement(struct dp_soc *soc); /** * dp_is_tput_high() - Check if throughput is high * * @soc - core txrx main context * * The current function is based of the RTPM tput policy variable where RTPM is * avoided based on throughput. */ static inline int dp_is_tput_high(struct dp_soc *soc) { return dp_get_rtpm_tput_policy_requirement(soc); } #if defined(FEATURE_TSO) /** * dp_tx_tso_unmap_segment() - Unmap TSO segment * * @soc - core txrx main context * @seg_desc - tso segment descriptor * @num_seg_desc - tso number segment descriptor */ static void dp_tx_tso_unmap_segment( struct dp_soc *soc, struct qdf_tso_seg_elem_t *seg_desc, struct qdf_tso_num_seg_elem_t *num_seg_desc) { TSO_DEBUG("%s: Unmap the tso segment", __func__); if (qdf_unlikely(!seg_desc)) { DP_TRACE(ERROR, "%s %d TSO desc is NULL!", __func__, __LINE__); qdf_assert(0); } else if (qdf_unlikely(!num_seg_desc)) { DP_TRACE(ERROR, "%s %d TSO num desc is NULL!", __func__, __LINE__); qdf_assert(0); } else { bool is_last_seg; /* no tso segment left to do dma unmap */ if (num_seg_desc->num_seg.tso_cmn_num_seg < 1) return; is_last_seg = (num_seg_desc->num_seg.tso_cmn_num_seg == 1) ? true : false; qdf_nbuf_unmap_tso_segment(soc->osdev, seg_desc, is_last_seg); num_seg_desc->num_seg.tso_cmn_num_seg--; } } /** * dp_tx_tso_desc_release() - Release the tso segment and tso_cmn_num_seg * back to the freelist * * @soc - soc device handle * @tx_desc - Tx software descriptor */ static void dp_tx_tso_desc_release(struct dp_soc *soc, struct dp_tx_desc_s *tx_desc) { TSO_DEBUG("%s: Free the tso descriptor", __func__); if (qdf_unlikely(!tx_desc->msdu_ext_desc->tso_desc)) { dp_tx_err("SO desc is NULL!"); qdf_assert(0); } else if (qdf_unlikely(!tx_desc->msdu_ext_desc->tso_num_desc)) { dp_tx_err("TSO num desc is NULL!"); qdf_assert(0); } else { struct qdf_tso_num_seg_elem_t *tso_num_desc = (struct qdf_tso_num_seg_elem_t *)tx_desc-> msdu_ext_desc->tso_num_desc; /* Add the tso num segment into the free list */ if (tso_num_desc->num_seg.tso_cmn_num_seg == 0) { dp_tso_num_seg_free(soc, tx_desc->pool_id, tx_desc->msdu_ext_desc-> tso_num_desc); tx_desc->msdu_ext_desc->tso_num_desc = NULL; DP_STATS_INC(tx_desc->pdev, tso_stats.tso_comp, 1); } /* Add the tso segment into the free list*/ dp_tx_tso_desc_free(soc, tx_desc->pool_id, tx_desc->msdu_ext_desc-> tso_desc); tx_desc->msdu_ext_desc->tso_desc = NULL; } } #else static void dp_tx_tso_unmap_segment( struct dp_soc *soc, struct qdf_tso_seg_elem_t *seg_desc, struct qdf_tso_num_seg_elem_t *num_seg_desc) { } static void dp_tx_tso_desc_release(struct dp_soc *soc, struct dp_tx_desc_s *tx_desc) { } #endif /** * dp_tx_desc_release() - Release Tx Descriptor * @tx_desc : Tx Descriptor * @desc_pool_id: Descriptor Pool ID * * Deallocate all resources attached to Tx descriptor and free the Tx * descriptor. * * Return: */ void dp_tx_desc_release(struct dp_tx_desc_s *tx_desc, uint8_t desc_pool_id) { struct dp_pdev *pdev = tx_desc->pdev; struct dp_soc *soc; uint8_t comp_status = 0; qdf_assert(pdev); soc = pdev->soc; dp_tx_outstanding_dec(pdev); if (tx_desc->msdu_ext_desc) { if (tx_desc->frm_type == dp_tx_frm_tso) dp_tx_tso_desc_release(soc, tx_desc); if (tx_desc->flags & DP_TX_DESC_FLAG_ME) dp_tx_me_free_buf(tx_desc->pdev, tx_desc->msdu_ext_desc->me_buffer); dp_tx_ext_desc_free(soc, tx_desc->msdu_ext_desc, desc_pool_id); } if (tx_desc->flags & DP_TX_DESC_FLAG_TO_FW) qdf_atomic_dec(&soc->num_tx_exception); if (HAL_TX_COMP_RELEASE_SOURCE_TQM == tx_desc->buffer_src) comp_status = hal_tx_comp_get_release_reason(&tx_desc->comp, soc->hal_soc); else comp_status = HAL_TX_COMP_RELEASE_REASON_FW; dp_tx_debug("Tx Completion Release desc %d status %d outstanding %d", tx_desc->id, comp_status, qdf_atomic_read(&pdev->num_tx_outstanding)); dp_tx_desc_free(soc, tx_desc, desc_pool_id); return; } /** * dp_tx_htt_metadata_prepare() - Prepare HTT metadata for special frames * @vdev: DP vdev Handle * @nbuf: skb * @msdu_info: msdu_info required to create HTT metadata * * Prepares and fills HTT metadata in the frame pre-header for special frames * that should be transmitted using varying transmit parameters. * There are 2 VDEV modes that currently needs this special metadata - * 1) Mesh Mode * 2) DSRC Mode * * Return: HTT metadata size * */ static uint8_t dp_tx_prepare_htt_metadata(struct dp_vdev *vdev, qdf_nbuf_t nbuf, struct dp_tx_msdu_info_s *msdu_info) { uint32_t *meta_data = msdu_info->meta_data; struct htt_tx_msdu_desc_ext2_t *desc_ext = (struct htt_tx_msdu_desc_ext2_t *) meta_data; uint8_t htt_desc_size; /* Size rounded of multiple of 8 bytes */ uint8_t htt_desc_size_aligned; uint8_t *hdr = NULL; /* * Metadata - HTT MSDU Extension header */ htt_desc_size = sizeof(struct htt_tx_msdu_desc_ext2_t); htt_desc_size_aligned = (htt_desc_size + 7) & ~0x7; if (vdev->mesh_vdev || msdu_info->is_tx_sniffer || HTT_TX_MSDU_EXT2_DESC_FLAG_VALID_KEY_FLAGS_GET(msdu_info-> meta_data[0])) { if (qdf_unlikely(qdf_nbuf_headroom(nbuf) < htt_desc_size_aligned)) { nbuf = qdf_nbuf_realloc_headroom(nbuf, htt_desc_size_aligned); if (!nbuf) { /* * qdf_nbuf_realloc_headroom won't do skb_clone * as skb_realloc_headroom does. so, no free is * needed here. */ DP_STATS_INC(vdev, tx_i.dropped.headroom_insufficient, 1); qdf_print(" %s[%d] skb_realloc_headroom failed", __func__, __LINE__); return 0; } } /* Fill and add HTT metaheader */ hdr = qdf_nbuf_push_head(nbuf, htt_desc_size_aligned); if (!hdr) { dp_tx_err("Error in filling HTT metadata"); return 0; } qdf_mem_copy(hdr, desc_ext, htt_desc_size); } else if (vdev->opmode == wlan_op_mode_ocb) { /* Todo - Add support for DSRC */ } return htt_desc_size_aligned; } /** * dp_tx_prepare_tso_ext_desc() - Prepare MSDU extension descriptor for TSO * @tso_seg: TSO segment to process * @ext_desc: Pointer to MSDU extension descriptor * * Return: void */ #if defined(FEATURE_TSO) static void dp_tx_prepare_tso_ext_desc(struct qdf_tso_seg_t *tso_seg, void *ext_desc) { uint8_t num_frag; uint32_t tso_flags; /* * Set tso_en, tcp_flags(NS, CWR, ECE, URG, ACK, PSH, RST, SYN, FIN), * tcp_flag_mask * * Checksum enable flags are set in TCL descriptor and not in Extension * Descriptor (H/W ignores checksum_en flags in MSDU ext descriptor) */ tso_flags = *(uint32_t *) &tso_seg->tso_flags; hal_tx_ext_desc_set_tso_flags(ext_desc, tso_flags); hal_tx_ext_desc_set_msdu_length(ext_desc, tso_seg->tso_flags.l2_len, tso_seg->tso_flags.ip_len); hal_tx_ext_desc_set_tcp_seq(ext_desc, tso_seg->tso_flags.tcp_seq_num); hal_tx_ext_desc_set_ip_id(ext_desc, tso_seg->tso_flags.ip_id); for (num_frag = 0; num_frag < tso_seg->num_frags; num_frag++) { uint32_t lo = 0; uint32_t hi = 0; qdf_assert_always((tso_seg->tso_frags[num_frag].paddr) && (tso_seg->tso_frags[num_frag].length)); qdf_dmaaddr_to_32s( tso_seg->tso_frags[num_frag].paddr, &lo, &hi); hal_tx_ext_desc_set_buffer(ext_desc, num_frag, lo, hi, tso_seg->tso_frags[num_frag].length); } return; } #else static void dp_tx_prepare_tso_ext_desc(struct qdf_tso_seg_t *tso_seg, void *ext_desc) { return; } #endif #if defined(FEATURE_TSO) /** * dp_tx_free_tso_seg_list() - Loop through the tso segments * allocated and free them * * @soc: soc handle * @free_seg: list of tso segments * @msdu_info: msdu descriptor * * Return - void */ static void dp_tx_free_tso_seg_list( struct dp_soc *soc, struct qdf_tso_seg_elem_t *free_seg, struct dp_tx_msdu_info_s *msdu_info) { struct qdf_tso_seg_elem_t *next_seg; while (free_seg) { next_seg = free_seg->next; dp_tx_tso_desc_free(soc, msdu_info->tx_queue.desc_pool_id, free_seg); free_seg = next_seg; } } /** * dp_tx_free_tso_num_seg_list() - Loop through the tso num segments * allocated and free them * * @soc: soc handle * @free_num_seg: list of tso number segments * @msdu_info: msdu descriptor * Return - void */ static void dp_tx_free_tso_num_seg_list( struct dp_soc *soc, struct qdf_tso_num_seg_elem_t *free_num_seg, struct dp_tx_msdu_info_s *msdu_info) { struct qdf_tso_num_seg_elem_t *next_num_seg; while (free_num_seg) { next_num_seg = free_num_seg->next; dp_tso_num_seg_free(soc, msdu_info->tx_queue.desc_pool_id, free_num_seg); free_num_seg = next_num_seg; } } /** * dp_tx_unmap_tso_seg_list() - Loop through the tso segments * do dma unmap for each segment * * @soc: soc handle * @free_seg: list of tso segments * @num_seg_desc: tso number segment descriptor * * Return - void */ static void dp_tx_unmap_tso_seg_list( struct dp_soc *soc, struct qdf_tso_seg_elem_t *free_seg, struct qdf_tso_num_seg_elem_t *num_seg_desc) { struct qdf_tso_seg_elem_t *next_seg; if (qdf_unlikely(!num_seg_desc)) { DP_TRACE(ERROR, "TSO number seg desc is NULL!"); return; } while (free_seg) { next_seg = free_seg->next; dp_tx_tso_unmap_segment(soc, free_seg, num_seg_desc); free_seg = next_seg; } } #ifdef FEATURE_TSO_STATS /** * dp_tso_get_stats_idx: Retrieve the tso packet id * @pdev - pdev handle * * Return: id */ static uint32_t dp_tso_get_stats_idx(struct dp_pdev *pdev) { uint32_t stats_idx; stats_idx = (((uint32_t)qdf_atomic_inc_return(&pdev->tso_idx)) % CDP_MAX_TSO_PACKETS); return stats_idx; } #else static int dp_tso_get_stats_idx(struct dp_pdev *pdev) { return 0; } #endif /* FEATURE_TSO_STATS */ /** * dp_tx_free_remaining_tso_desc() - do dma unmap for tso segments if any, * free the tso segments descriptor and * tso num segments descriptor * * @soc: soc handle * @msdu_info: msdu descriptor * @tso_seg_unmap: flag to show if dma unmap is necessary * * Return - void */ static void dp_tx_free_remaining_tso_desc(struct dp_soc *soc, struct dp_tx_msdu_info_s *msdu_info, bool tso_seg_unmap) { struct qdf_tso_info_t *tso_info = &msdu_info->u.tso_info; struct qdf_tso_seg_elem_t *free_seg = tso_info->tso_seg_list; struct qdf_tso_num_seg_elem_t *tso_num_desc = tso_info->tso_num_seg_list; /* do dma unmap for each segment */ if (tso_seg_unmap) dp_tx_unmap_tso_seg_list(soc, free_seg, tso_num_desc); /* free all tso number segment descriptor though looks only have 1 */ dp_tx_free_tso_num_seg_list(soc, tso_num_desc, msdu_info); /* free all tso segment descriptor */ dp_tx_free_tso_seg_list(soc, free_seg, msdu_info); } /** * dp_tx_prepare_tso() - Given a jumbo msdu, prepare the TSO info * @vdev: virtual device handle * @msdu: network buffer * @msdu_info: meta data associated with the msdu * * Return: QDF_STATUS_SUCCESS success */ static QDF_STATUS dp_tx_prepare_tso(struct dp_vdev *vdev, qdf_nbuf_t msdu, struct dp_tx_msdu_info_s *msdu_info) { struct qdf_tso_seg_elem_t *tso_seg; int num_seg = qdf_nbuf_get_tso_num_seg(msdu); struct dp_soc *soc = vdev->pdev->soc; struct dp_pdev *pdev = vdev->pdev; struct qdf_tso_info_t *tso_info; struct qdf_tso_num_seg_elem_t *tso_num_seg; tso_info = &msdu_info->u.tso_info; tso_info->curr_seg = NULL; tso_info->tso_seg_list = NULL; tso_info->num_segs = num_seg; msdu_info->frm_type = dp_tx_frm_tso; tso_info->tso_num_seg_list = NULL; TSO_DEBUG(" %s: num_seg: %d", __func__, num_seg); while (num_seg) { tso_seg = dp_tx_tso_desc_alloc( soc, msdu_info->tx_queue.desc_pool_id); if (tso_seg) { tso_seg->next = tso_info->tso_seg_list; tso_info->tso_seg_list = tso_seg; num_seg--; } else { dp_err_rl("Failed to alloc tso seg desc"); DP_STATS_INC_PKT(vdev->pdev, tso_stats.tso_no_mem_dropped, 1, qdf_nbuf_len(msdu)); dp_tx_free_remaining_tso_desc(soc, msdu_info, false); return QDF_STATUS_E_NOMEM; } } TSO_DEBUG(" %s: num_seg: %d", __func__, num_seg); tso_num_seg = dp_tso_num_seg_alloc(soc, msdu_info->tx_queue.desc_pool_id); if (tso_num_seg) { tso_num_seg->next = tso_info->tso_num_seg_list; tso_info->tso_num_seg_list = tso_num_seg; } else { DP_TRACE(ERROR, "%s: Failed to alloc - Number of segs desc", __func__); dp_tx_free_remaining_tso_desc(soc, msdu_info, false); return QDF_STATUS_E_NOMEM; } msdu_info->num_seg = qdf_nbuf_get_tso_info(soc->osdev, msdu, tso_info); TSO_DEBUG(" %s: msdu_info->num_seg: %d", __func__, msdu_info->num_seg); if (!(msdu_info->num_seg)) { /* * Free allocated TSO seg desc and number seg desc, * do unmap for segments if dma map has done. */ DP_TRACE(ERROR, "%s: Failed to get tso info", __func__); dp_tx_free_remaining_tso_desc(soc, msdu_info, true); return QDF_STATUS_E_INVAL; } dp_tx_tso_history_add(soc, msdu_info->u.tso_info, msdu, 0, DP_TX_DESC_MAP); tso_info->curr_seg = tso_info->tso_seg_list; tso_info->msdu_stats_idx = dp_tso_get_stats_idx(pdev); dp_tso_packet_update(pdev, tso_info->msdu_stats_idx, msdu, msdu_info->num_seg); dp_tso_segment_stats_update(pdev, tso_info->tso_seg_list, tso_info->msdu_stats_idx); dp_stats_tso_segment_histogram_update(pdev, msdu_info->num_seg); return QDF_STATUS_SUCCESS; } #else static QDF_STATUS dp_tx_prepare_tso(struct dp_vdev *vdev, qdf_nbuf_t msdu, struct dp_tx_msdu_info_s *msdu_info) { return QDF_STATUS_E_NOMEM; } #endif QDF_COMPILE_TIME_ASSERT(dp_tx_htt_metadata_len_check, (DP_TX_MSDU_INFO_META_DATA_DWORDS * 4 >= sizeof(struct htt_tx_msdu_desc_ext2_t))); /** * dp_tx_prepare_ext_desc() - Allocate and prepare MSDU extension descriptor * @vdev: DP Vdev handle * @msdu_info: MSDU info to be setup in MSDU extension descriptor * @desc_pool_id: Descriptor Pool ID * * Return: */ static struct dp_tx_ext_desc_elem_s *dp_tx_prepare_ext_desc(struct dp_vdev *vdev, struct dp_tx_msdu_info_s *msdu_info, uint8_t desc_pool_id) { uint8_t i; uint8_t cached_ext_desc[HAL_TX_EXT_DESC_WITH_META_DATA]; struct dp_tx_seg_info_s *seg_info; struct dp_tx_ext_desc_elem_s *msdu_ext_desc; struct dp_soc *soc = vdev->pdev->soc; /* Allocate an extension descriptor */ msdu_ext_desc = dp_tx_ext_desc_alloc(soc, desc_pool_id); qdf_mem_zero(&cached_ext_desc[0], HAL_TX_EXT_DESC_WITH_META_DATA); if (!msdu_ext_desc) { DP_STATS_INC(vdev, tx_i.dropped.desc_na.num, 1); return NULL; } if (msdu_info->exception_fw && qdf_unlikely(vdev->mesh_vdev)) { qdf_mem_copy(&cached_ext_desc[HAL_TX_EXTENSION_DESC_LEN_BYTES], &msdu_info->meta_data[0], sizeof(struct htt_tx_msdu_desc_ext2_t)); qdf_atomic_inc(&soc->num_tx_exception); msdu_ext_desc->flags |= DP_TX_EXT_DESC_FLAG_METADATA_VALID; } switch (msdu_info->frm_type) { case dp_tx_frm_sg: case dp_tx_frm_me: case dp_tx_frm_raw: seg_info = msdu_info->u.sg_info.curr_seg; /* Update the buffer pointers in MSDU Extension Descriptor */ for (i = 0; i < seg_info->frag_cnt; i++) { hal_tx_ext_desc_set_buffer(&cached_ext_desc[0], i, seg_info->frags[i].paddr_lo, seg_info->frags[i].paddr_hi, seg_info->frags[i].len); } break; case dp_tx_frm_tso: dp_tx_prepare_tso_ext_desc(&msdu_info->u.tso_info.curr_seg->seg, &cached_ext_desc[0]); break; default: break; } QDF_TRACE_HEX_DUMP(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_DEBUG, cached_ext_desc, HAL_TX_EXT_DESC_WITH_META_DATA); hal_tx_ext_desc_sync(&cached_ext_desc[0], msdu_ext_desc->vaddr); return msdu_ext_desc; } /** * dp_tx_trace_pkt() - Trace TX packet at DP layer * * @skb: skb to be traced * @msdu_id: msdu_id of the packet * @vdev_id: vdev_id of the packet * * Return: None */ #ifdef DP_DISABLE_TX_PKT_TRACE static void dp_tx_trace_pkt(struct dp_soc *soc, qdf_nbuf_t skb, uint16_t msdu_id, uint8_t vdev_id) { } #else static void dp_tx_trace_pkt(struct dp_soc *soc, qdf_nbuf_t skb, uint16_t msdu_id, uint8_t vdev_id) { if (dp_is_tput_high(soc)) return; QDF_NBUF_CB_TX_PACKET_TRACK(skb) = QDF_NBUF_TX_PKT_DATA_TRACK; QDF_NBUF_CB_TX_DP_TRACE(skb) = 1; DPTRACE(qdf_dp_trace_ptr(skb, QDF_DP_TRACE_LI_DP_TX_PACKET_PTR_RECORD, QDF_TRACE_DEFAULT_PDEV_ID, qdf_nbuf_data_addr(skb), sizeof(qdf_nbuf_data(skb)), msdu_id, vdev_id, 0)); qdf_dp_trace_log_pkt(vdev_id, skb, QDF_TX, QDF_TRACE_DEFAULT_PDEV_ID); DPTRACE(qdf_dp_trace_data_pkt(skb, QDF_TRACE_DEFAULT_PDEV_ID, QDF_DP_TRACE_LI_DP_TX_PACKET_RECORD, msdu_id, QDF_TX)); } #endif #ifdef WLAN_DP_FEATURE_MARK_ICMP_REQ_TO_FW /** * dp_tx_is_nbuf_marked_exception() - Check if the packet has been marked as * exception by the upper layer (OS_IF) * @soc: DP soc handle * @nbuf: packet to be transmitted * * Returns: 1 if the packet is marked as exception, * 0, if the packet is not marked as exception. */ static inline int dp_tx_is_nbuf_marked_exception(struct dp_soc *soc, qdf_nbuf_t nbuf) { return QDF_NBUF_CB_TX_PACKET_TO_FW(nbuf); } #else static inline int dp_tx_is_nbuf_marked_exception(struct dp_soc *soc, qdf_nbuf_t nbuf) { return 0; } #endif /** * dp_tx_desc_prepare_single - Allocate and prepare Tx descriptor * @vdev: DP vdev handle * @nbuf: skb * @desc_pool_id: Descriptor pool ID * @meta_data: Metadata to the fw * @tx_exc_metadata: Handle that holds exception path metadata * Allocate and prepare Tx descriptor with msdu information. * * Return: Pointer to Tx Descriptor on success, * NULL on failure */ static struct dp_tx_desc_s *dp_tx_prepare_desc_single(struct dp_vdev *vdev, qdf_nbuf_t nbuf, uint8_t desc_pool_id, struct dp_tx_msdu_info_s *msdu_info, struct cdp_tx_exception_metadata *tx_exc_metadata) { uint8_t align_pad; uint8_t is_exception = 0; uint8_t htt_hdr_size; struct dp_tx_desc_s *tx_desc; struct dp_pdev *pdev = vdev->pdev; struct dp_soc *soc = pdev->soc; if (dp_tx_limit_check(vdev)) return NULL; /* Allocate software Tx descriptor */ tx_desc = dp_tx_desc_alloc(soc, desc_pool_id); if (qdf_unlikely(!tx_desc)) { DP_STATS_INC(vdev, tx_i.dropped.desc_na.num, 1); DP_STATS_INC(vdev, tx_i.dropped.desc_na_exc_alloc_fail.num, 1); return NULL; } dp_tx_outstanding_inc(pdev); /* Initialize the SW tx descriptor */ tx_desc->nbuf = nbuf; tx_desc->frm_type = dp_tx_frm_std; tx_desc->tx_encap_type = ((tx_exc_metadata && (tx_exc_metadata->tx_encap_type != CDP_INVALID_TX_ENCAP_TYPE)) ? tx_exc_metadata->tx_encap_type : vdev->tx_encap_type); tx_desc->vdev_id = vdev->vdev_id; tx_desc->pdev = pdev; tx_desc->msdu_ext_desc = NULL; tx_desc->pkt_offset = 0; tx_desc->length = qdf_nbuf_headlen(nbuf); dp_tx_trace_pkt(soc, nbuf, tx_desc->id, vdev->vdev_id); if (qdf_unlikely(vdev->multipass_en)) { if (!dp_tx_multipass_process(soc, vdev, nbuf, msdu_info)) goto failure; } /* Packets marked by upper layer (OS-IF) to be sent to FW */ if (dp_tx_is_nbuf_marked_exception(soc, nbuf)) is_exception = 1; /* * For special modes (vdev_type == ocb or mesh), data frames should be * transmitted using varying transmit parameters (tx spec) which include * transmit rate, power, priority, channel, channel bandwidth , nss etc. * These are filled in HTT MSDU descriptor and sent in frame pre-header. * These frames are sent as exception packets to firmware. * * HW requirement is that metadata should always point to a * 8-byte aligned address. So we add alignment pad to start of buffer. * HTT Metadata should be ensured to be multiple of 8-bytes, * to get 8-byte aligned start address along with align_pad added * * |-----------------------------| * | | * |-----------------------------| <-----Buffer Pointer Address given * | | ^ in HW descriptor (aligned) * | HTT Metadata | | * | | | * | | | Packet Offset given in descriptor * | | | * |-----------------------------| | * | Alignment Pad | v * |-----------------------------| <----- Actual buffer start address * | SKB Data | (Unaligned) * | | * | | * | | * | | * | | * |-----------------------------| */ if (qdf_unlikely((msdu_info->exception_fw)) || (vdev->opmode == wlan_op_mode_ocb) || (tx_exc_metadata && tx_exc_metadata->is_tx_sniffer)) { align_pad = ((unsigned long) qdf_nbuf_data(nbuf)) & 0x7; if (qdf_unlikely(qdf_nbuf_headroom(nbuf) < align_pad)) { DP_STATS_INC(vdev, tx_i.dropped.headroom_insufficient, 1); goto failure; } if (qdf_nbuf_push_head(nbuf, align_pad) == NULL) { dp_tx_err("qdf_nbuf_push_head failed"); goto failure; } htt_hdr_size = dp_tx_prepare_htt_metadata(vdev, nbuf, msdu_info); if (htt_hdr_size == 0) goto failure; tx_desc->length = qdf_nbuf_headlen(nbuf); tx_desc->pkt_offset = align_pad + htt_hdr_size; tx_desc->flags |= DP_TX_DESC_FLAG_TO_FW; is_exception = 1; tx_desc->length -= tx_desc->pkt_offset; } #if !TQM_BYPASS_WAR if (is_exception || tx_exc_metadata) #endif { /* Temporary WAR due to TQM VP issues */ tx_desc->flags |= DP_TX_DESC_FLAG_TO_FW; qdf_atomic_inc(&soc->num_tx_exception); } return tx_desc; failure: dp_tx_desc_release(tx_desc, desc_pool_id); return NULL; } /** * dp_tx_prepare_desc() - Allocate and prepare Tx descriptor for multisegment frame * @vdev: DP vdev handle * @nbuf: skb * @msdu_info: Info to be setup in MSDU descriptor and MSDU extension descriptor * @desc_pool_id : Descriptor Pool ID * * Allocate and prepare Tx descriptor with msdu and fragment descritor * information. For frames wth fragments, allocate and prepare * an MSDU extension descriptor * * Return: Pointer to Tx Descriptor on success, * NULL on failure */ static struct dp_tx_desc_s *dp_tx_prepare_desc(struct dp_vdev *vdev, qdf_nbuf_t nbuf, struct dp_tx_msdu_info_s *msdu_info, uint8_t desc_pool_id) { struct dp_tx_desc_s *tx_desc; struct dp_tx_ext_desc_elem_s *msdu_ext_desc; struct dp_pdev *pdev = vdev->pdev; struct dp_soc *soc = pdev->soc; if (dp_tx_limit_check(vdev)) return NULL; /* Allocate software Tx descriptor */ tx_desc = dp_tx_desc_alloc(soc, desc_pool_id); if (!tx_desc) { DP_STATS_INC(vdev, tx_i.dropped.desc_na.num, 1); return NULL; } dp_tx_tso_seg_history_add(soc, msdu_info->u.tso_info.curr_seg, nbuf, tx_desc->id, DP_TX_DESC_COOKIE); dp_tx_outstanding_inc(pdev); /* Initialize the SW tx descriptor */ tx_desc->nbuf = nbuf; tx_desc->frm_type = msdu_info->frm_type; tx_desc->tx_encap_type = vdev->tx_encap_type; tx_desc->vdev_id = vdev->vdev_id; tx_desc->pdev = pdev; tx_desc->pkt_offset = 0; dp_tx_trace_pkt(soc, nbuf, tx_desc->id, vdev->vdev_id); /* Handle scattered frames - TSO/SG/ME */ /* Allocate and prepare an extension descriptor for scattered frames */ msdu_ext_desc = dp_tx_prepare_ext_desc(vdev, msdu_info, desc_pool_id); if (!msdu_ext_desc) { dp_tx_info("Tx Extension Descriptor Alloc Fail"); goto failure; } #if TQM_BYPASS_WAR /* Temporary WAR due to TQM VP issues */ tx_desc->flags |= DP_TX_DESC_FLAG_TO_FW; qdf_atomic_inc(&soc->num_tx_exception); #endif if (qdf_unlikely(msdu_info->exception_fw)) tx_desc->flags |= DP_TX_DESC_FLAG_TO_FW; tx_desc->msdu_ext_desc = msdu_ext_desc; tx_desc->flags |= DP_TX_DESC_FLAG_FRAG; msdu_ext_desc->tso_desc = msdu_info->u.tso_info.curr_seg; msdu_ext_desc->tso_num_desc = msdu_info->u.tso_info.tso_num_seg_list; tx_desc->dma_addr = msdu_ext_desc->paddr; if (msdu_ext_desc->flags & DP_TX_EXT_DESC_FLAG_METADATA_VALID) tx_desc->length = HAL_TX_EXT_DESC_WITH_META_DATA; else tx_desc->length = HAL_TX_EXTENSION_DESC_LEN_BYTES; return tx_desc; failure: dp_tx_desc_release(tx_desc, desc_pool_id); return NULL; } /** * dp_tx_prepare_raw() - Prepare RAW packet TX * @vdev: DP vdev handle * @nbuf: buffer pointer * @seg_info: Pointer to Segment info Descriptor to be prepared * @msdu_info: MSDU info to be setup in MSDU descriptor and MSDU extension * descriptor * * Return: */ static qdf_nbuf_t dp_tx_prepare_raw(struct dp_vdev *vdev, qdf_nbuf_t nbuf, struct dp_tx_seg_info_s *seg_info, struct dp_tx_msdu_info_s *msdu_info) { qdf_nbuf_t curr_nbuf = NULL; uint16_t total_len = 0; qdf_dma_addr_t paddr; int32_t i; int32_t mapped_buf_num = 0; struct dp_tx_sg_info_s *sg_info = &msdu_info->u.sg_info; qdf_dot3_qosframe_t *qos_wh = (qdf_dot3_qosframe_t *) nbuf->data; DP_STATS_INC_PKT(vdev, tx_i.raw.raw_pkt, 1, qdf_nbuf_len(nbuf)); /* Continue only if frames are of DATA type */ if (!DP_FRAME_IS_DATA(qos_wh)) { DP_STATS_INC(vdev, tx_i.raw.invalid_raw_pkt_datatype, 1); dp_tx_debug("Pkt. recd is of not data type"); goto error; } /* SWAR for HW: Enable WEP bit in the AMSDU frames for RAW mode */ if (vdev->raw_mode_war && (qos_wh->i_fc[0] & QDF_IEEE80211_FC0_SUBTYPE_QOS) && (qos_wh->i_qos[0] & IEEE80211_QOS_AMSDU)) qos_wh->i_fc[1] |= IEEE80211_FC1_WEP; for (curr_nbuf = nbuf, i = 0; curr_nbuf; curr_nbuf = qdf_nbuf_next(curr_nbuf), i++) { /* * Number of nbuf's must not exceed the size of the frags * array in seg_info. */ if (i >= DP_TX_MAX_NUM_FRAGS) { dp_err_rl("nbuf cnt exceeds the max number of segs"); DP_STATS_INC(vdev, tx_i.raw.num_frags_overflow_err, 1); goto error; } if (QDF_STATUS_SUCCESS != qdf_nbuf_map_nbytes_single(vdev->osdev, curr_nbuf, QDF_DMA_TO_DEVICE, curr_nbuf->len)) { dp_tx_err("%s dma map error ", __func__); DP_STATS_INC(vdev, tx_i.raw.dma_map_error, 1); goto error; } /* Update the count of mapped nbuf's */ mapped_buf_num++; paddr = qdf_nbuf_get_frag_paddr(curr_nbuf, 0); seg_info->frags[i].paddr_lo = paddr; seg_info->frags[i].paddr_hi = ((uint64_t)paddr >> 32); seg_info->frags[i].len = qdf_nbuf_len(curr_nbuf); seg_info->frags[i].vaddr = (void *) curr_nbuf; total_len += qdf_nbuf_len(curr_nbuf); } seg_info->frag_cnt = i; seg_info->total_len = total_len; seg_info->next = NULL; sg_info->curr_seg = seg_info; msdu_info->frm_type = dp_tx_frm_raw; msdu_info->num_seg = 1; return nbuf; error: i = 0; while (nbuf) { curr_nbuf = nbuf; if (i < mapped_buf_num) { qdf_nbuf_unmap_nbytes_single(vdev->osdev, curr_nbuf, QDF_DMA_TO_DEVICE, curr_nbuf->len); i++; } nbuf = qdf_nbuf_next(nbuf); qdf_nbuf_free(curr_nbuf); } return NULL; } /** * dp_tx_raw_prepare_unset() - unmap the chain of nbufs belonging to RAW frame. * @soc: DP soc handle * @nbuf: Buffer pointer * * unmap the chain of nbufs that belong to this RAW frame. * * Return: None */ static void dp_tx_raw_prepare_unset(struct dp_soc *soc, qdf_nbuf_t nbuf) { qdf_nbuf_t cur_nbuf = nbuf; do { qdf_nbuf_unmap_nbytes_single(soc->osdev, cur_nbuf, QDF_DMA_TO_DEVICE, cur_nbuf->len); cur_nbuf = qdf_nbuf_next(cur_nbuf); } while (cur_nbuf); } #ifdef VDEV_PEER_PROTOCOL_COUNT void dp_vdev_peer_stats_update_protocol_cnt_tx(struct dp_vdev *vdev_hdl, qdf_nbuf_t nbuf) { qdf_nbuf_t nbuf_local; struct dp_vdev *vdev_local = vdev_hdl; do { if (qdf_likely(!((vdev_local)->peer_protocol_count_track))) break; nbuf_local = nbuf; if (qdf_unlikely(((vdev_local)->tx_encap_type) == htt_cmn_pkt_type_raw)) break; else if (qdf_unlikely(qdf_nbuf_is_nonlinear((nbuf_local)))) break; else if (qdf_nbuf_is_tso((nbuf_local))) break; dp_vdev_peer_stats_update_protocol_cnt((vdev_local), (nbuf_local), NULL, 1, 0); } while (0); } #endif #ifdef WLAN_DP_FEATURE_SW_LATENCY_MGR /** * dp_tx_update_stats() - Update soc level tx stats * @soc: DP soc handle * @nbuf: packet being transmitted * * Returns: none */ void dp_tx_update_stats(struct dp_soc *soc, qdf_nbuf_t nbuf) { DP_STATS_INC_PKT(soc, tx.egress, 1, qdf_nbuf_len(nbuf)); } int dp_tx_attempt_coalescing(struct dp_soc *soc, struct dp_vdev *vdev, struct dp_tx_desc_s *tx_desc, uint8_t tid) { struct dp_swlm *swlm = &soc->swlm; union swlm_data swlm_query_data; struct dp_swlm_tcl_data tcl_data; QDF_STATUS status; int ret; if (qdf_unlikely(!swlm->is_enabled)) return 0; tcl_data.nbuf = tx_desc->nbuf; tcl_data.tid = tid; tcl_data.num_ll_connections = vdev->num_latency_critical_conn; swlm_query_data.tcl_data = &tcl_data; status = dp_swlm_tcl_pre_check(soc, &tcl_data); if (QDF_IS_STATUS_ERROR(status)) { dp_swlm_tcl_reset_session_data(soc); DP_STATS_INC(swlm, tcl.coalesce_fail, 1); return 0; } ret = dp_swlm_query_policy(soc, TCL_DATA, swlm_query_data); if (ret) { DP_STATS_INC(swlm, tcl.coalesce_success, 1); } else { DP_STATS_INC(swlm, tcl.coalesce_fail, 1); } return ret; } void dp_tx_ring_access_end(struct dp_soc *soc, hal_ring_handle_t hal_ring_hdl, int coalesce) { if (coalesce) dp_tx_hal_ring_access_end_reap(soc, hal_ring_hdl); else dp_tx_hal_ring_access_end(soc, hal_ring_hdl); } #endif #ifdef FEATURE_RUNTIME_PM static inline int dp_get_rtpm_tput_policy_requirement(struct dp_soc *soc) { return qdf_atomic_read(&soc->rtpm_high_tput_flag); } /** * dp_tx_ring_access_end_wrapper() - Wrapper for ring access end * @soc: Datapath soc handle * @hal_ring_hdl: HAL ring handle * @coalesce: Coalesce the current write or not * * Wrapper for HAL ring access end for data transmission for * FEATURE_RUNTIME_PM * * Returns: none */ void dp_tx_ring_access_end_wrapper(struct dp_soc *soc, hal_ring_handle_t hal_ring_hdl, int coalesce) { int ret; /* * Avoid runtime get and put APIs under high throughput scenarios. */ if (dp_get_rtpm_tput_policy_requirement(soc)) { dp_tx_ring_access_end(soc, hal_ring_hdl, coalesce); return; } ret = hif_pm_runtime_get(soc->hif_handle, RTPM_ID_DW_TX_HW_ENQUEUE, true); switch (ret) { case 0: if (hif_system_pm_state_check(soc->hif_handle)) { dp_tx_hal_ring_access_end_reap(soc, hal_ring_hdl); hal_srng_set_event(hal_ring_hdl, HAL_SRNG_FLUSH_EVENT); hal_srng_inc_flush_cnt(hal_ring_hdl); } else { dp_tx_ring_access_end(soc, hal_ring_hdl, coalesce); } hif_pm_runtime_put(soc->hif_handle, RTPM_ID_DW_TX_HW_ENQUEUE); break; /* * If hif_pm_runtime_get returns -EBUSY or -EINPROGRESS, * take the dp runtime refcount using dp_runtime_get, * check link state,if up, write TX ring HP, else just set flush event. * In dp_runtime_resume, wait until dp runtime refcount becomes * zero or time out, then flush pending tx. */ case -EBUSY: case -EINPROGRESS: dp_runtime_get(soc); if (hif_pm_get_link_state(soc->hif_handle) == HIF_PM_LINK_STATE_UP) { dp_tx_ring_access_end(soc, hal_ring_hdl, coalesce); } else { dp_tx_hal_ring_access_end_reap(soc, hal_ring_hdl); hal_srng_set_event(hal_ring_hdl, HAL_SRNG_FLUSH_EVENT); qdf_atomic_inc(&soc->tx_pending_rtpm); hal_srng_inc_flush_cnt(hal_ring_hdl); } dp_runtime_put(soc); break; default: dp_runtime_get(soc); dp_tx_hal_ring_access_end_reap(soc, hal_ring_hdl); hal_srng_set_event(hal_ring_hdl, HAL_SRNG_FLUSH_EVENT); qdf_atomic_inc(&soc->tx_pending_rtpm); hal_srng_inc_flush_cnt(hal_ring_hdl); dp_runtime_put(soc); } } #else #ifdef DP_POWER_SAVE void dp_tx_ring_access_end_wrapper(struct dp_soc *soc, hal_ring_handle_t hal_ring_hdl, int coalesce) { if (hif_system_pm_state_check(soc->hif_handle)) { dp_tx_hal_ring_access_end_reap(soc, hal_ring_hdl); hal_srng_set_event(hal_ring_hdl, HAL_SRNG_FLUSH_EVENT); hal_srng_inc_flush_cnt(hal_ring_hdl); } else { dp_tx_ring_access_end(soc, hal_ring_hdl, coalesce); } } #endif static inline int dp_get_rtpm_tput_policy_requirement(struct dp_soc *soc) { return 0; } #endif /** * dp_tx_get_tid() - Obtain TID to be used for this frame * @vdev: DP vdev handle * @nbuf: skb * * Extract the DSCP or PCP information from frame and map into TID value. * * Return: void */ static void dp_tx_get_tid(struct dp_vdev *vdev, qdf_nbuf_t nbuf, struct dp_tx_msdu_info_s *msdu_info) { uint8_t tos = 0, dscp_tid_override = 0; uint8_t *hdr_ptr, *L3datap; uint8_t is_mcast = 0; qdf_ether_header_t *eh = NULL; qdf_ethervlan_header_t *evh = NULL; uint16_t ether_type; qdf_llc_t *llcHdr; struct dp_pdev *pdev = (struct dp_pdev *)vdev->pdev; DP_TX_TID_OVERRIDE(msdu_info, nbuf); if (qdf_likely(vdev->tx_encap_type != htt_cmn_pkt_type_raw)) { eh = (qdf_ether_header_t *)nbuf->data; hdr_ptr = (uint8_t *)(eh->ether_dhost); L3datap = hdr_ptr + sizeof(qdf_ether_header_t); } else { qdf_dot3_qosframe_t *qos_wh = (qdf_dot3_qosframe_t *) nbuf->data; msdu_info->tid = qos_wh->i_fc[0] & DP_FC0_SUBTYPE_QOS ? qos_wh->i_qos[0] & DP_QOS_TID : 0; return; } is_mcast = DP_FRAME_IS_MULTICAST(hdr_ptr); ether_type = eh->ether_type; llcHdr = (qdf_llc_t *)(nbuf->data + sizeof(qdf_ether_header_t)); /* * Check if packet is dot3 or eth2 type. */ if (DP_FRAME_IS_LLC(ether_type) && DP_FRAME_IS_SNAP(llcHdr)) { ether_type = (uint16_t)*(nbuf->data + 2*QDF_MAC_ADDR_SIZE + sizeof(*llcHdr)); if (ether_type == htons(ETHERTYPE_VLAN)) { L3datap = hdr_ptr + sizeof(qdf_ethervlan_header_t) + sizeof(*llcHdr); ether_type = (uint16_t)*(nbuf->data + 2*QDF_MAC_ADDR_SIZE + sizeof(*llcHdr) + sizeof(qdf_net_vlanhdr_t)); } else { L3datap = hdr_ptr + sizeof(qdf_ether_header_t) + sizeof(*llcHdr); } } else { if (ether_type == htons(ETHERTYPE_VLAN)) { evh = (qdf_ethervlan_header_t *) eh; ether_type = evh->ether_type; L3datap = hdr_ptr + sizeof(qdf_ethervlan_header_t); } } /* * Find priority from IP TOS DSCP field */ if (qdf_nbuf_is_ipv4_pkt(nbuf)) { qdf_net_iphdr_t *ip = (qdf_net_iphdr_t *) L3datap; if (qdf_nbuf_is_ipv4_dhcp_pkt(nbuf)) { /* Only for unicast frames */ if (!is_mcast) { /* send it on VO queue */ msdu_info->tid = DP_VO_TID; } } else { /* * IP frame: exclude ECN bits 0-1 and map DSCP bits 2-7 * from TOS byte. */ tos = ip->ip_tos; dscp_tid_override = 1; } } else if (qdf_nbuf_is_ipv6_pkt(nbuf)) { /* TODO * use flowlabel *igmpmld cases to be handled in phase 2 */ unsigned long ver_pri_flowlabel; unsigned long pri; ver_pri_flowlabel = *(unsigned long *) L3datap; pri = (ntohl(ver_pri_flowlabel) & IPV6_FLOWINFO_PRIORITY) >> DP_IPV6_PRIORITY_SHIFT; tos = pri; dscp_tid_override = 1; } else if (qdf_nbuf_is_ipv4_eapol_pkt(nbuf)) msdu_info->tid = DP_VO_TID; else if (qdf_nbuf_is_ipv4_arp_pkt(nbuf)) { /* Only for unicast frames */ if (!is_mcast) { /* send ucast arp on VO queue */ msdu_info->tid = DP_VO_TID; } } /* * Assign all MCAST packets to BE */ if (qdf_unlikely(vdev->tx_encap_type != htt_cmn_pkt_type_raw)) { if (is_mcast) { tos = 0; dscp_tid_override = 1; } } if (dscp_tid_override == 1) { tos = (tos >> DP_IP_DSCP_SHIFT) & DP_IP_DSCP_MASK; msdu_info->tid = pdev->dscp_tid_map[vdev->dscp_tid_map_id][tos]; } if (msdu_info->tid >= CDP_MAX_DATA_TIDS) msdu_info->tid = CDP_MAX_DATA_TIDS - 1; return; } /** * dp_tx_classify_tid() - Obtain TID to be used for this frame * @vdev: DP vdev handle * @nbuf: skb * * Software based TID classification is required when more than 2 DSCP-TID * mapping tables are needed. * Hardware supports 2 DSCP-TID mapping tables for HKv1 and 48 for HKv2. * * Return: void */ static inline void dp_tx_classify_tid(struct dp_vdev *vdev, qdf_nbuf_t nbuf, struct dp_tx_msdu_info_s *msdu_info) { DP_TX_TID_OVERRIDE(msdu_info, nbuf); /* * skip_sw_tid_classification flag will set in below cases- * 1. vdev->dscp_tid_map_id < pdev->soc->num_hw_dscp_tid_map * 2. hlos_tid_override enabled for vdev * 3. mesh mode enabled for vdev */ if (qdf_likely(vdev->skip_sw_tid_classification)) { /* Update tid in msdu_info from skb priority */ if (qdf_unlikely(vdev->skip_sw_tid_classification & DP_TXRX_HLOS_TID_OVERRIDE_ENABLED)) { uint32_t tid = qdf_nbuf_get_priority(nbuf); if (tid == DP_TX_INVALID_QOS_TAG) return; msdu_info->tid = tid; return; } return; } dp_tx_get_tid(vdev, nbuf, msdu_info); } #ifdef FEATURE_WLAN_TDLS /** * dp_tx_update_tdls_flags() - Update descriptor flags for TDLS frame * @soc: datapath SOC * @vdev: datapath vdev * @tx_desc: TX descriptor * * Return: None */ static void dp_tx_update_tdls_flags(struct dp_soc *soc, struct dp_vdev *vdev, struct dp_tx_desc_s *tx_desc) { if (vdev) { if (vdev->is_tdls_frame) { tx_desc->flags |= DP_TX_DESC_FLAG_TDLS_FRAME; vdev->is_tdls_frame = false; } } } static uint8_t dp_htt_tx_comp_get_status(struct dp_soc *soc, char *htt_desc) { uint8_t tx_status = HTT_TX_FW2WBM_TX_STATUS_MAX; switch (soc->arch_id) { case CDP_ARCH_TYPE_LI: tx_status = HTT_TX_WBM_COMPLETION_V2_TX_STATUS_GET(htt_desc[0]); break; case CDP_ARCH_TYPE_BE: tx_status = HTT_TX_WBM_COMPLETION_V3_TX_STATUS_GET(htt_desc[0]); break; default: dp_err("Incorrect CDP_ARCH %d", soc->arch_id); QDF_BUG(0); } return tx_status; } /** * dp_non_std_htt_tx_comp_free_buff() - Free the non std tx packet buffer * @soc: dp_soc handle * @tx_desc: TX descriptor * @vdev: datapath vdev handle * * Return: None */ static void dp_non_std_htt_tx_comp_free_buff(struct dp_soc *soc, struct dp_tx_desc_s *tx_desc) { uint8_t tx_status = 0; uint8_t htt_tx_status[HAL_TX_COMP_HTT_STATUS_LEN]; qdf_nbuf_t nbuf = tx_desc->nbuf; struct dp_vdev *vdev = dp_vdev_get_ref_by_id(soc, tx_desc->vdev_id, DP_MOD_ID_TDLS); if (qdf_unlikely(!vdev)) { dp_err_rl("vdev is null!"); goto error; } hal_tx_comp_get_htt_desc(&tx_desc->comp, htt_tx_status); tx_status = dp_htt_tx_comp_get_status(soc, htt_tx_status); dp_debug("vdev_id: %d tx_status: %d", tx_desc->vdev_id, tx_status); if (vdev->tx_non_std_data_callback.func) { qdf_nbuf_set_next(nbuf, NULL); vdev->tx_non_std_data_callback.func( vdev->tx_non_std_data_callback.ctxt, nbuf, tx_status); dp_vdev_unref_delete(soc, vdev, DP_MOD_ID_TDLS); return; } else { dp_err_rl("callback func is null"); } dp_vdev_unref_delete(soc, vdev, DP_MOD_ID_TDLS); error: qdf_nbuf_unmap_single(soc->osdev, nbuf, QDF_DMA_TO_DEVICE); qdf_nbuf_free(nbuf); } /** * dp_tx_msdu_single_map() - do nbuf map * @vdev: DP vdev handle * @tx_desc: DP TX descriptor pointer * @nbuf: skb pointer * * For TDLS frame, use qdf_nbuf_map_single() to align with the unmap * operation done in other component. * * Return: QDF_STATUS */ static inline QDF_STATUS dp_tx_msdu_single_map(struct dp_vdev *vdev, struct dp_tx_desc_s *tx_desc, qdf_nbuf_t nbuf) { if (qdf_likely(!(tx_desc->flags & DP_TX_DESC_FLAG_TDLS_FRAME))) return qdf_nbuf_map_nbytes_single(vdev->osdev, nbuf, QDF_DMA_TO_DEVICE, nbuf->len); else return qdf_nbuf_map_single(vdev->osdev, nbuf, QDF_DMA_TO_DEVICE); } #else static inline void dp_tx_update_tdls_flags(struct dp_soc *soc, struct dp_vdev *vdev, struct dp_tx_desc_s *tx_desc) { } static inline void dp_non_std_htt_tx_comp_free_buff(struct dp_soc *soc, struct dp_tx_desc_s *tx_desc) { } static inline QDF_STATUS dp_tx_msdu_single_map(struct dp_vdev *vdev, struct dp_tx_desc_s *tx_desc, qdf_nbuf_t nbuf) { return qdf_nbuf_map_nbytes_single(vdev->osdev, nbuf, QDF_DMA_TO_DEVICE, nbuf->len); } #endif #if defined(QCA_DP_TX_NBUF_NO_MAP_UNMAP) && !defined(BUILD_X86) static inline qdf_dma_addr_t dp_tx_nbuf_map(struct dp_vdev *vdev, struct dp_tx_desc_s *tx_desc, qdf_nbuf_t nbuf) { qdf_nbuf_dma_clean_range((void *)nbuf->data, (void *)(nbuf->data + nbuf->len)); return (qdf_dma_addr_t)qdf_mem_virt_to_phys(nbuf->data); } static inline void dp_tx_nbuf_unmap(struct dp_soc *soc, struct dp_tx_desc_s *desc) { } #else static inline qdf_dma_addr_t dp_tx_nbuf_map(struct dp_vdev *vdev, struct dp_tx_desc_s *tx_desc, qdf_nbuf_t nbuf) { QDF_STATUS ret = QDF_STATUS_E_FAILURE; ret = dp_tx_msdu_single_map(vdev, tx_desc, nbuf); if (qdf_unlikely(QDF_IS_STATUS_ERROR(ret))) return 0; return qdf_nbuf_mapped_paddr_get(nbuf); } static inline void dp_tx_nbuf_unmap(struct dp_soc *soc, struct dp_tx_desc_s *desc) { qdf_nbuf_unmap_nbytes_single_paddr(soc->osdev, desc->nbuf, desc->dma_addr, QDF_DMA_TO_DEVICE, desc->length); } #endif #ifdef MESH_MODE_SUPPORT /** * dp_tx_update_mesh_flags() - Update descriptor flags for mesh VAP * @soc: datapath SOC * @vdev: datapath vdev * @tx_desc: TX descriptor * * Return: None */ static inline void dp_tx_update_mesh_flags(struct dp_soc *soc, struct dp_vdev *vdev, struct dp_tx_desc_s *tx_desc) { if (qdf_unlikely(vdev->mesh_vdev)) tx_desc->flags |= DP_TX_DESC_FLAG_MESH_MODE; } /** * dp_mesh_tx_comp_free_buff() - Free the mesh tx packet buffer * @soc: dp_soc handle * @tx_desc: TX descriptor * @vdev: datapath vdev handle * * Return: None */ static inline void dp_mesh_tx_comp_free_buff(struct dp_soc *soc, struct dp_tx_desc_s *tx_desc) { qdf_nbuf_t nbuf = tx_desc->nbuf; struct dp_vdev *vdev = NULL; if (tx_desc->flags & DP_TX_DESC_FLAG_TO_FW) { qdf_nbuf_free(nbuf); DP_STATS_INC(vdev, tx_i.mesh.completion_fw, 1); } else { vdev = dp_vdev_get_ref_by_id(soc, tx_desc->vdev_id, DP_MOD_ID_MESH); if (vdev && vdev->osif_tx_free_ext) vdev->osif_tx_free_ext((nbuf)); else qdf_nbuf_free(nbuf); if (vdev) dp_vdev_unref_delete(soc, vdev, DP_MOD_ID_MESH); } } #else static inline void dp_tx_update_mesh_flags(struct dp_soc *soc, struct dp_vdev *vdev, struct dp_tx_desc_s *tx_desc) { } static inline void dp_mesh_tx_comp_free_buff(struct dp_soc *soc, struct dp_tx_desc_s *tx_desc) { } #endif /** * dp_tx_frame_is_drop() - checks if the packet is loopback * @vdev: DP vdev handle * @nbuf: skb * * Return: 1 if frame needs to be dropped else 0 */ int dp_tx_frame_is_drop(struct dp_vdev *vdev, uint8_t *srcmac, uint8_t *dstmac) { struct dp_pdev *pdev = NULL; struct dp_ast_entry *src_ast_entry = NULL; struct dp_ast_entry *dst_ast_entry = NULL; struct dp_soc *soc = NULL; qdf_assert(vdev); pdev = vdev->pdev; qdf_assert(pdev); soc = pdev->soc; dst_ast_entry = dp_peer_ast_hash_find_by_pdevid (soc, dstmac, vdev->pdev->pdev_id); src_ast_entry = dp_peer_ast_hash_find_by_pdevid (soc, srcmac, vdev->pdev->pdev_id); if (dst_ast_entry && src_ast_entry) { if (dst_ast_entry->peer_id == src_ast_entry->peer_id) return 1; } return 0; } #if defined(WLAN_FEATURE_11BE_MLO) && defined(WLAN_MLO_MULTI_CHIP) && \ defined(WLAN_MCAST_MLO) /* MLO peer id for reinject*/ #define DP_MLO_MCAST_REINJECT_PEER_ID 0XFFFD /* MLO vdev id inc offset */ #define DP_MLO_VDEV_ID_OFFSET 0x80 static inline void dp_tx_update_mcast_param(uint16_t peer_id, uint16_t *htt_tcl_metadata, struct dp_vdev *vdev, struct dp_tx_msdu_info_s *msdu_info) { if (peer_id == DP_MLO_MCAST_REINJECT_PEER_ID) { *htt_tcl_metadata = 0; DP_TX_TCL_METADATA_TYPE_SET( *htt_tcl_metadata, HTT_TCL_METADATA_V2_TYPE_GLOBAL_SEQ_BASED); HTT_TX_TCL_METADATA_GLBL_SEQ_NO_SET(*htt_tcl_metadata, msdu_info->gsn); msdu_info->vdev_id = vdev->vdev_id + DP_MLO_VDEV_ID_OFFSET; } else { msdu_info->vdev_id = vdev->vdev_id; } } #else static inline void dp_tx_update_mcast_param(uint16_t peer_id, uint16_t *htt_tcl_metadata, struct dp_vdev *vdev, struct dp_tx_msdu_info_s *msdu_info) { } #endif /** * dp_tx_send_msdu_single() - Setup descriptor and enqueue single MSDU to TCL * @vdev: DP vdev handle * @nbuf: skb * @tid: TID from HLOS for overriding default DSCP-TID mapping * @meta_data: Metadata to the fw * @tx_q: Tx queue to be used for this Tx frame * @peer_id: peer_id of the peer in case of NAWDS frames * @tx_exc_metadata: Handle that holds exception path metadata * * Return: NULL on success, * nbuf when it fails to send */ qdf_nbuf_t dp_tx_send_msdu_single(struct dp_vdev *vdev, qdf_nbuf_t nbuf, struct dp_tx_msdu_info_s *msdu_info, uint16_t peer_id, struct cdp_tx_exception_metadata *tx_exc_metadata) { struct dp_pdev *pdev = vdev->pdev; struct dp_soc *soc = pdev->soc; struct dp_tx_desc_s *tx_desc; QDF_STATUS status; struct dp_tx_queue *tx_q = &(msdu_info->tx_queue); uint16_t htt_tcl_metadata = 0; enum cdp_tx_sw_drop drop_code = TX_MAX_DROP; uint8_t tid = msdu_info->tid; struct cdp_tid_tx_stats *tid_stats = NULL; qdf_dma_addr_t paddr; /* Setup Tx descriptor for an MSDU, and MSDU extension descriptor */ tx_desc = dp_tx_prepare_desc_single(vdev, nbuf, tx_q->desc_pool_id, msdu_info, tx_exc_metadata); if (!tx_desc) { dp_err_rl("Tx_desc prepare Fail vdev %pK queue %d", vdev, tx_q->desc_pool_id); drop_code = TX_DESC_ERR; goto fail_return; } dp_tx_update_tdls_flags(soc, vdev, tx_desc); if (qdf_unlikely(peer_id == DP_INVALID_PEER)) { htt_tcl_metadata = vdev->htt_tcl_metadata; DP_TX_TCL_METADATA_HOST_INSPECTED_SET(htt_tcl_metadata, 1); } else if (qdf_unlikely(peer_id != HTT_INVALID_PEER)) { DP_TX_TCL_METADATA_TYPE_SET(htt_tcl_metadata, DP_TCL_METADATA_TYPE_PEER_BASED); DP_TX_TCL_METADATA_PEER_ID_SET(htt_tcl_metadata, peer_id); } else htt_tcl_metadata = vdev->htt_tcl_metadata; if (msdu_info->exception_fw) DP_TX_TCL_METADATA_VALID_HTT_SET(htt_tcl_metadata, 1); dp_tx_desc_update_fast_comp_flag(soc, tx_desc, !pdev->enhanced_stats_en); dp_tx_update_mesh_flags(soc, vdev, tx_desc); paddr = dp_tx_nbuf_map(vdev, tx_desc, nbuf); if (!paddr) { /* Handle failure */ dp_err("qdf_nbuf_map failed"); DP_STATS_INC(vdev, tx_i.dropped.dma_error, 1); drop_code = TX_DMA_MAP_ERR; goto release_desc; } tx_desc->dma_addr = paddr; dp_tx_desc_history_add(soc, tx_desc->dma_addr, nbuf, tx_desc->id, DP_TX_DESC_MAP); dp_tx_update_mcast_param(peer_id, &htt_tcl_metadata, vdev, msdu_info); /* Enqueue the Tx MSDU descriptor to HW for transmit */ status = soc->arch_ops.tx_hw_enqueue(soc, vdev, tx_desc, htt_tcl_metadata, tx_exc_metadata, msdu_info); if (status != QDF_STATUS_SUCCESS) { dp_tx_err_rl("Tx_hw_enqueue Fail tx_desc %pK queue %d", tx_desc, tx_q->ring_id); dp_tx_desc_history_add(soc, tx_desc->dma_addr, nbuf, tx_desc->id, DP_TX_DESC_UNMAP); qdf_nbuf_unmap_nbytes_single(vdev->osdev, nbuf, QDF_DMA_TO_DEVICE, nbuf->len); drop_code = TX_HW_ENQUEUE; goto release_desc; } return NULL; release_desc: dp_tx_desc_release(tx_desc, tx_q->desc_pool_id); fail_return: dp_tx_get_tid(vdev, nbuf, msdu_info); tid_stats = &pdev->stats.tid_stats. tid_tx_stats[tx_q->ring_id][tid]; tid_stats->swdrop_cnt[drop_code]++; return nbuf; } /** * dp_tx_comp_free_buf() - Free nbuf associated with the Tx Descriptor * @soc: Soc handle * @desc: software Tx descriptor to be processed * * Return: none */ void dp_tx_comp_free_buf(struct dp_soc *soc, struct dp_tx_desc_s *desc) { qdf_nbuf_t nbuf = desc->nbuf; enum dp_tx_event_type type = dp_tx_get_event_type(desc->flags); /* nbuf already freed in vdev detach path */ if (!nbuf) return; /* If it is TDLS mgmt, don't unmap or free the frame */ if (desc->flags & DP_TX_DESC_FLAG_TDLS_FRAME) return dp_non_std_htt_tx_comp_free_buff(soc, desc); /* 0 : MSDU buffer, 1 : MLE */ if (desc->msdu_ext_desc) { /* TSO free */ if (hal_tx_ext_desc_get_tso_enable( desc->msdu_ext_desc->vaddr)) { dp_tx_desc_history_add(soc, desc->dma_addr, desc->nbuf, desc->id, DP_TX_COMP_MSDU_EXT); dp_tx_tso_seg_history_add(soc, desc->msdu_ext_desc->tso_desc, desc->nbuf, desc->id, type); /* unmap eash TSO seg before free the nbuf */ dp_tx_tso_unmap_segment(soc, desc->msdu_ext_desc->tso_desc, desc->msdu_ext_desc-> tso_num_desc); qdf_nbuf_free(nbuf); return; } if (qdf_unlikely(desc->frm_type == dp_tx_frm_sg)) { void *msdu_ext_desc = desc->msdu_ext_desc->vaddr; qdf_dma_addr_t iova; uint32_t frag_len; uint32_t i; qdf_nbuf_unmap_nbytes_single(soc->osdev, nbuf, QDF_DMA_TO_DEVICE, qdf_nbuf_headlen(nbuf)); for (i = 1; i < DP_TX_MAX_NUM_FRAGS; i++) { hal_tx_ext_desc_get_frag_info(msdu_ext_desc, i, &iova, &frag_len); if (!iova || !frag_len) break; qdf_mem_unmap_page(soc->osdev, iova, frag_len, QDF_DMA_TO_DEVICE); } qdf_nbuf_free(nbuf); return; } } /* If it's ME frame, dont unmap the cloned nbuf's */ if ((desc->flags & DP_TX_DESC_FLAG_ME) && qdf_nbuf_is_cloned(nbuf)) goto nbuf_free; dp_tx_desc_history_add(soc, desc->dma_addr, desc->nbuf, desc->id, type); dp_tx_unmap(soc, desc); if (desc->flags & DP_TX_DESC_FLAG_MESH_MODE) return dp_mesh_tx_comp_free_buff(soc, desc); nbuf_free: qdf_nbuf_free(nbuf); } /** * dp_tx_sg_unmap_buf() - Unmap scatter gather fragments * @soc: DP soc handle * @nbuf: skb * @msdu_info: MSDU info * * Return: None */ static inline void dp_tx_sg_unmap_buf(struct dp_soc *soc, qdf_nbuf_t nbuf, struct dp_tx_msdu_info_s *msdu_info) { uint32_t cur_idx; struct dp_tx_seg_info_s *seg = msdu_info->u.sg_info.curr_seg; qdf_nbuf_unmap_nbytes_single(soc->osdev, nbuf, QDF_DMA_TO_DEVICE, qdf_nbuf_headlen(nbuf)); for (cur_idx = 1; cur_idx < seg->frag_cnt; cur_idx++) qdf_mem_unmap_page(soc->osdev, (qdf_dma_addr_t) (seg->frags[cur_idx].paddr_lo | ((uint64_t) seg->frags[cur_idx].paddr_hi) << 32), seg->frags[cur_idx].len, QDF_DMA_TO_DEVICE); } /** * dp_tx_send_msdu_multiple() - Enqueue multiple MSDUs * @vdev: DP vdev handle * @nbuf: skb * @msdu_info: MSDU info to be setup in MSDU extension descriptor * * Prepare descriptors for multiple MSDUs (TSO segments) and enqueue to TCL * * Return: NULL on success, * nbuf when it fails to send */ #if QDF_LOCK_STATS noinline #else #endif qdf_nbuf_t dp_tx_send_msdu_multiple(struct dp_vdev *vdev, qdf_nbuf_t nbuf, struct dp_tx_msdu_info_s *msdu_info) { uint32_t i; struct dp_pdev *pdev = vdev->pdev; struct dp_soc *soc = pdev->soc; struct dp_tx_desc_s *tx_desc; bool is_cce_classified = false; QDF_STATUS status; uint16_t htt_tcl_metadata = 0; struct dp_tx_queue *tx_q = &msdu_info->tx_queue; struct cdp_tid_tx_stats *tid_stats = NULL; uint8_t prep_desc_fail = 0, hw_enq_fail = 0; if (msdu_info->frm_type == dp_tx_frm_me) nbuf = msdu_info->u.sg_info.curr_seg->nbuf; i = 0; /* Print statement to track i and num_seg */ /* * For each segment (maps to 1 MSDU) , prepare software and hardware * descriptors using information in msdu_info */ while (i < msdu_info->num_seg) { /* * Setup Tx descriptor for an MSDU, and MSDU extension * descriptor */ tx_desc = dp_tx_prepare_desc(vdev, nbuf, msdu_info, tx_q->desc_pool_id); if (!tx_desc) { if (msdu_info->frm_type == dp_tx_frm_me) { prep_desc_fail++; dp_tx_me_free_buf(pdev, (void *)(msdu_info->u.sg_info .curr_seg->frags[0].vaddr)); if (prep_desc_fail == msdu_info->num_seg) { /* * Unmap is needed only if descriptor * preparation failed for all segments. */ qdf_nbuf_unmap(soc->osdev, msdu_info->u.sg_info. curr_seg->nbuf, QDF_DMA_TO_DEVICE); } /* * Free the nbuf for the current segment * and make it point to the next in the list. * For me, there are as many segments as there * are no of clients. */ qdf_nbuf_free(msdu_info->u.sg_info .curr_seg->nbuf); if (msdu_info->u.sg_info.curr_seg->next) { msdu_info->u.sg_info.curr_seg = msdu_info->u.sg_info .curr_seg->next; nbuf = msdu_info->u.sg_info .curr_seg->nbuf; } i++; continue; } if (msdu_info->frm_type == dp_tx_frm_tso) { dp_tx_tso_seg_history_add( soc, msdu_info->u.tso_info.curr_seg, nbuf, 0, DP_TX_DESC_UNMAP); dp_tx_tso_unmap_segment(soc, msdu_info->u.tso_info. curr_seg, msdu_info->u.tso_info. tso_num_seg_list); if (msdu_info->u.tso_info.curr_seg->next) { msdu_info->u.tso_info.curr_seg = msdu_info->u.tso_info.curr_seg->next; i++; continue; } } if (msdu_info->frm_type == dp_tx_frm_sg) dp_tx_sg_unmap_buf(soc, nbuf, msdu_info); goto done; } if (msdu_info->frm_type == dp_tx_frm_me) { tx_desc->msdu_ext_desc->me_buffer = (struct dp_tx_me_buf_t *)msdu_info-> u.sg_info.curr_seg->frags[0].vaddr; tx_desc->flags |= DP_TX_DESC_FLAG_ME; } if (is_cce_classified) tx_desc->flags |= DP_TX_DESC_FLAG_TO_FW; htt_tcl_metadata = vdev->htt_tcl_metadata; if (msdu_info->exception_fw) { DP_TX_TCL_METADATA_VALID_HTT_SET(htt_tcl_metadata, 1); } /* * For frames with multiple segments (TSO, ME), jump to next * segment. */ if (msdu_info->frm_type == dp_tx_frm_tso) { if (msdu_info->u.tso_info.curr_seg->next) { msdu_info->u.tso_info.curr_seg = msdu_info->u.tso_info.curr_seg->next; /* * If this is a jumbo nbuf, then increment the * number of nbuf users for each additional * segment of the msdu. This will ensure that * the skb is freed only after receiving tx * completion for all segments of an nbuf */ qdf_nbuf_inc_users(nbuf); /* Check with MCL if this is needed */ /* nbuf = msdu_info->u.tso_info.curr_seg->nbuf; */ } } dp_tx_update_mcast_param(DP_INVALID_PEER, &htt_tcl_metadata, vdev, msdu_info); /* * Enqueue the Tx MSDU descriptor to HW for transmit */ status = soc->arch_ops.tx_hw_enqueue(soc, vdev, tx_desc, htt_tcl_metadata, NULL, msdu_info); if (status != QDF_STATUS_SUCCESS) { dp_info_rl("Tx_hw_enqueue Fail tx_desc %pK queue %d", tx_desc, tx_q->ring_id); dp_tx_get_tid(vdev, nbuf, msdu_info); tid_stats = &pdev->stats.tid_stats. tid_tx_stats[tx_q->ring_id][msdu_info->tid]; tid_stats->swdrop_cnt[TX_HW_ENQUEUE]++; if (msdu_info->frm_type == dp_tx_frm_me) { hw_enq_fail++; if (hw_enq_fail == msdu_info->num_seg) { /* * Unmap is needed only if enqueue * failed for all segments. */ qdf_nbuf_unmap(soc->osdev, msdu_info->u.sg_info. curr_seg->nbuf, QDF_DMA_TO_DEVICE); } /* * Free the nbuf for the current segment * and make it point to the next in the list. * For me, there are as many segments as there * are no of clients. */ qdf_nbuf_free(msdu_info->u.sg_info .curr_seg->nbuf); if (msdu_info->u.sg_info.curr_seg->next) { msdu_info->u.sg_info.curr_seg = msdu_info->u.sg_info .curr_seg->next; nbuf = msdu_info->u.sg_info .curr_seg->nbuf; } else break; i++; dp_tx_desc_release(tx_desc, tx_q->desc_pool_id); continue; } /* * For TSO frames, the nbuf users increment done for * the current segment has to be reverted, since the * hw enqueue for this segment failed */ if (msdu_info->frm_type == dp_tx_frm_tso && msdu_info->u.tso_info.curr_seg) { /* * unmap and free current, * retransmit remaining segments */ dp_tx_comp_free_buf(soc, tx_desc); i++; dp_tx_desc_release(tx_desc, tx_q->desc_pool_id); continue; } if (msdu_info->frm_type == dp_tx_frm_sg) dp_tx_sg_unmap_buf(soc, nbuf, msdu_info); dp_tx_desc_release(tx_desc, tx_q->desc_pool_id); goto done; } /* * TODO * if tso_info structure can be modified to have curr_seg * as first element, following 2 blocks of code (for TSO and SG) * can be combined into 1 */ /* * For Multicast-Unicast converted packets, * each converted frame (for a client) is represented as * 1 segment */ if ((msdu_info->frm_type == dp_tx_frm_sg) || (msdu_info->frm_type == dp_tx_frm_me)) { if (msdu_info->u.sg_info.curr_seg->next) { msdu_info->u.sg_info.curr_seg = msdu_info->u.sg_info.curr_seg->next; nbuf = msdu_info->u.sg_info.curr_seg->nbuf; } else break; } i++; } nbuf = NULL; done: return nbuf; } /** * dp_tx_prepare_sg()- Extract SG info from NBUF and prepare msdu_info * for SG frames * @vdev: DP vdev handle * @nbuf: skb * @seg_info: Pointer to Segment info Descriptor to be prepared * @msdu_info: MSDU info to be setup in MSDU descriptor and MSDU extension desc. * * Return: NULL on success, * nbuf when it fails to send */ static qdf_nbuf_t dp_tx_prepare_sg(struct dp_vdev *vdev, qdf_nbuf_t nbuf, struct dp_tx_seg_info_s *seg_info, struct dp_tx_msdu_info_s *msdu_info) { uint32_t cur_frag, nr_frags, i; qdf_dma_addr_t paddr; struct dp_tx_sg_info_s *sg_info; sg_info = &msdu_info->u.sg_info; nr_frags = qdf_nbuf_get_nr_frags(nbuf); if (QDF_STATUS_SUCCESS != qdf_nbuf_map_nbytes_single(vdev->osdev, nbuf, QDF_DMA_TO_DEVICE, qdf_nbuf_headlen(nbuf))) { dp_tx_err("dma map error"); DP_STATS_INC(vdev, tx_i.sg.dma_map_error, 1); qdf_nbuf_free(nbuf); return NULL; } paddr = qdf_nbuf_mapped_paddr_get(nbuf); seg_info->frags[0].paddr_lo = paddr; seg_info->frags[0].paddr_hi = ((uint64_t) paddr) >> 32; seg_info->frags[0].len = qdf_nbuf_headlen(nbuf); seg_info->frags[0].vaddr = (void *) nbuf; for (cur_frag = 0; cur_frag < nr_frags; cur_frag++) { if (QDF_STATUS_SUCCESS != qdf_nbuf_frag_map(vdev->osdev, nbuf, 0, QDF_DMA_TO_DEVICE, cur_frag)) { dp_tx_err("frag dma map error"); DP_STATS_INC(vdev, tx_i.sg.dma_map_error, 1); goto map_err; } paddr = qdf_nbuf_get_tx_frag_paddr(nbuf); seg_info->frags[cur_frag + 1].paddr_lo = paddr; seg_info->frags[cur_frag + 1].paddr_hi = ((uint64_t) paddr) >> 32; seg_info->frags[cur_frag + 1].len = qdf_nbuf_get_frag_size(nbuf, cur_frag); } seg_info->frag_cnt = (cur_frag + 1); seg_info->total_len = qdf_nbuf_len(nbuf); seg_info->next = NULL; sg_info->curr_seg = seg_info; msdu_info->frm_type = dp_tx_frm_sg; msdu_info->num_seg = 1; return nbuf; map_err: /* restore paddr into nbuf before calling unmap */ qdf_nbuf_mapped_paddr_set(nbuf, (qdf_dma_addr_t)(seg_info->frags[0].paddr_lo | ((uint64_t) seg_info->frags[0].paddr_hi) << 32)); qdf_nbuf_unmap_nbytes_single(vdev->osdev, nbuf, QDF_DMA_TO_DEVICE, seg_info->frags[0].len); for (i = 1; i <= cur_frag; i++) { qdf_mem_unmap_page(vdev->osdev, (qdf_dma_addr_t) (seg_info->frags[i].paddr_lo | ((uint64_t) seg_info->frags[i].paddr_hi) << 32), seg_info->frags[i].len, QDF_DMA_TO_DEVICE); } qdf_nbuf_free(nbuf); return NULL; } /** * dp_tx_add_tx_sniffer_meta_data()- Add tx_sniffer meta hdr info * @vdev: DP vdev handle * @msdu_info: MSDU info to be setup in MSDU descriptor and MSDU extension desc. * @ppdu_cookie: PPDU cookie that should be replayed in the ppdu completions * * Return: NULL on failure, * nbuf when extracted successfully */ static void dp_tx_add_tx_sniffer_meta_data(struct dp_vdev *vdev, struct dp_tx_msdu_info_s *msdu_info, uint16_t ppdu_cookie) { struct htt_tx_msdu_desc_ext2_t *meta_data = (struct htt_tx_msdu_desc_ext2_t *)&msdu_info->meta_data[0]; qdf_mem_zero(meta_data, sizeof(struct htt_tx_msdu_desc_ext2_t)); HTT_TX_MSDU_EXT2_DESC_FLAG_SEND_AS_STANDALONE_SET (msdu_info->meta_data[5], 1); HTT_TX_MSDU_EXT2_DESC_FLAG_HOST_OPAQUE_VALID_SET (msdu_info->meta_data[5], 1); HTT_TX_MSDU_EXT2_DESC_HOST_OPAQUE_COOKIE_SET (msdu_info->meta_data[6], ppdu_cookie); msdu_info->exception_fw = 1; msdu_info->is_tx_sniffer = 1; } #ifdef MESH_MODE_SUPPORT /** * dp_tx_extract_mesh_meta_data()- Extract mesh meta hdr info from nbuf and prepare msdu_info for mesh frames. * @vdev: DP vdev handle * @nbuf: skb * @msdu_info: MSDU info to be setup in MSDU descriptor and MSDU extension desc. * * Return: NULL on failure, * nbuf when extracted successfully */ static qdf_nbuf_t dp_tx_extract_mesh_meta_data(struct dp_vdev *vdev, qdf_nbuf_t nbuf, struct dp_tx_msdu_info_s *msdu_info) { struct meta_hdr_s *mhdr; struct htt_tx_msdu_desc_ext2_t *meta_data = (struct htt_tx_msdu_desc_ext2_t *)&msdu_info->meta_data[0]; mhdr = (struct meta_hdr_s *)qdf_nbuf_data(nbuf); if (CB_FTYPE_MESH_TX_INFO != qdf_nbuf_get_tx_ftype(nbuf)) { msdu_info->exception_fw = 0; goto remove_meta_hdr; } msdu_info->exception_fw = 1; qdf_mem_zero(meta_data, sizeof(struct htt_tx_msdu_desc_ext2_t)); meta_data->host_tx_desc_pool = 1; meta_data->update_peer_cache = 1; meta_data->learning_frame = 1; if (!(mhdr->flags & METAHDR_FLAG_AUTO_RATE)) { meta_data->power = mhdr->power; meta_data->mcs_mask = 1 << mhdr->rate_info[0].mcs; meta_data->nss_mask = 1 << mhdr->rate_info[0].nss; meta_data->pream_type = mhdr->rate_info[0].preamble_type; meta_data->retry_limit = mhdr->rate_info[0].max_tries; meta_data->dyn_bw = 1; meta_data->valid_pwr = 1; meta_data->valid_mcs_mask = 1; meta_data->valid_nss_mask = 1; meta_data->valid_preamble_type = 1; meta_data->valid_retries = 1; meta_data->valid_bw_info = 1; } if (mhdr->flags & METAHDR_FLAG_NOENCRYPT) { meta_data->encrypt_type = 0; meta_data->valid_encrypt_type = 1; meta_data->learning_frame = 0; } meta_data->valid_key_flags = 1; meta_data->key_flags = (mhdr->keyix & 0x3); remove_meta_hdr: if (qdf_nbuf_pull_head(nbuf, sizeof(struct meta_hdr_s)) == NULL) { dp_tx_err("qdf_nbuf_pull_head failed"); qdf_nbuf_free(nbuf); return NULL; } msdu_info->tid = qdf_nbuf_get_priority(nbuf); dp_tx_info("Meta hdr %0x %0x %0x %0x %0x %0x" " tid %d to_fw %d", msdu_info->meta_data[0], msdu_info->meta_data[1], msdu_info->meta_data[2], msdu_info->meta_data[3], msdu_info->meta_data[4], msdu_info->meta_data[5], msdu_info->tid, msdu_info->exception_fw); return nbuf; } #else static qdf_nbuf_t dp_tx_extract_mesh_meta_data(struct dp_vdev *vdev, qdf_nbuf_t nbuf, struct dp_tx_msdu_info_s *msdu_info) { return nbuf; } #endif /** * dp_check_exc_metadata() - Checks if parameters are valid * @tx_exc - holds all exception path parameters * * Returns true when all the parameters are valid else false * */ static bool dp_check_exc_metadata(struct cdp_tx_exception_metadata *tx_exc) { bool invalid_tid = (tx_exc->tid >= DP_MAX_TIDS && tx_exc->tid != HTT_INVALID_TID); bool invalid_encap_type = (tx_exc->tx_encap_type > htt_cmn_pkt_num_types && tx_exc->tx_encap_type != CDP_INVALID_TX_ENCAP_TYPE); bool invalid_sec_type = (tx_exc->sec_type > cdp_num_sec_types && tx_exc->sec_type != CDP_INVALID_SEC_TYPE); bool invalid_cookie = (tx_exc->is_tx_sniffer == 1 && tx_exc->ppdu_cookie == 0); if (invalid_tid || invalid_encap_type || invalid_sec_type || invalid_cookie) { return false; } return true; } #ifdef ATH_SUPPORT_IQUE /** * dp_tx_mcast_enhance() - Multicast enhancement on TX * @vdev: vdev handle * @nbuf: skb * * Return: true on success, * false on failure */ static inline bool dp_tx_mcast_enhance(struct dp_vdev *vdev, qdf_nbuf_t nbuf) { qdf_ether_header_t *eh; /* Mcast to Ucast Conversion*/ if (qdf_likely(!vdev->mcast_enhancement_en)) return true; eh = (qdf_ether_header_t *)qdf_nbuf_data(nbuf); if (DP_FRAME_IS_MULTICAST((eh)->ether_dhost) && !DP_FRAME_IS_BROADCAST((eh)->ether_dhost)) { dp_verbose_debug("Mcast frm for ME %pK", vdev); qdf_nbuf_set_next(nbuf, NULL); DP_STATS_INC_PKT(vdev, tx_i.mcast_en.mcast_pkt, 1, qdf_nbuf_len(nbuf)); if (dp_tx_prepare_send_me(vdev, nbuf) == QDF_STATUS_SUCCESS) { return false; } if (qdf_unlikely(vdev->igmp_mcast_enhanc_en > 0)) { if (dp_tx_prepare_send_igmp_me(vdev, nbuf) == QDF_STATUS_SUCCESS) { return false; } } } return true; } #else static inline bool dp_tx_mcast_enhance(struct dp_vdev *vdev, qdf_nbuf_t nbuf) { return true; } #endif /** * dp_tx_per_pkt_vdev_id_check() - vdev id check for frame * @nbuf: qdf_nbuf_t * @vdev: struct dp_vdev * * * Allow packet for processing only if it is for peer client which is * connected with same vap. Drop packet if client is connected to * different vap. * * Return: QDF_STATUS */ static inline QDF_STATUS dp_tx_per_pkt_vdev_id_check(qdf_nbuf_t nbuf, struct dp_vdev *vdev) { struct dp_ast_entry *dst_ast_entry = NULL; qdf_ether_header_t *eh = (qdf_ether_header_t *)qdf_nbuf_data(nbuf); if (DP_FRAME_IS_MULTICAST((eh)->ether_dhost) || DP_FRAME_IS_BROADCAST((eh)->ether_dhost)) return QDF_STATUS_SUCCESS; qdf_spin_lock_bh(&vdev->pdev->soc->ast_lock); dst_ast_entry = dp_peer_ast_hash_find_by_vdevid(vdev->pdev->soc, eh->ether_dhost, vdev->vdev_id); /* If there is no ast entry, return failure */ if (qdf_unlikely(!dst_ast_entry)) { qdf_spin_unlock_bh(&vdev->pdev->soc->ast_lock); return QDF_STATUS_E_FAILURE; } qdf_spin_unlock_bh(&vdev->pdev->soc->ast_lock); return QDF_STATUS_SUCCESS; } /** * dp_tx_send_exception() - Transmit a frame on a given VAP in exception path * @soc: DP soc handle * @vdev_id: id of DP vdev handle * @nbuf: skb * @tx_exc_metadata: Handle that holds exception path meta data * * Entry point for Core Tx layer (DP_TX) invoked from * hard_start_xmit in OSIF/HDD to transmit frames through fw * * Return: NULL on success, * nbuf when it fails to send */ qdf_nbuf_t dp_tx_send_exception(struct cdp_soc_t *soc_hdl, uint8_t vdev_id, qdf_nbuf_t nbuf, struct cdp_tx_exception_metadata *tx_exc_metadata) { struct dp_soc *soc = cdp_soc_t_to_dp_soc(soc_hdl); qdf_ether_header_t *eh = NULL; struct dp_tx_msdu_info_s msdu_info; struct dp_vdev *vdev = dp_vdev_get_ref_by_id(soc, vdev_id, DP_MOD_ID_TX_EXCEPTION); if (qdf_unlikely(!vdev)) goto fail; qdf_mem_zero(&msdu_info, sizeof(msdu_info)); if (!tx_exc_metadata) goto fail; msdu_info.tid = tx_exc_metadata->tid; eh = (qdf_ether_header_t *)qdf_nbuf_data(nbuf); dp_verbose_debug("skb "QDF_MAC_ADDR_FMT, QDF_MAC_ADDR_REF(nbuf->data)); DP_STATS_INC_PKT(vdev, tx_i.rcvd, 1, qdf_nbuf_len(nbuf)); if (qdf_unlikely(!dp_check_exc_metadata(tx_exc_metadata))) { dp_tx_err("Invalid parameters in exception path"); goto fail; } /* Basic sanity checks for unsupported packets */ /* MESH mode */ if (qdf_unlikely(vdev->mesh_vdev)) { dp_tx_err("Mesh mode is not supported in exception path"); goto fail; } /* * Classify the frame and call corresponding * "prepare" function which extracts the segment (TSO) * and fragmentation information (for TSO , SG, ME, or Raw) * into MSDU_INFO structure which is later used to fill * SW and HW descriptors. */ if (qdf_nbuf_is_tso(nbuf)) { dp_verbose_debug("TSO frame %pK", vdev); DP_STATS_INC_PKT(vdev->pdev, tso_stats.num_tso_pkts, 1, qdf_nbuf_len(nbuf)); if (dp_tx_prepare_tso(vdev, nbuf, &msdu_info)) { DP_STATS_INC_PKT(vdev->pdev, tso_stats.dropped_host, 1, qdf_nbuf_len(nbuf)); goto fail; } goto send_multiple; } /* SG */ if (qdf_unlikely(qdf_nbuf_is_nonlinear(nbuf))) { struct dp_tx_seg_info_s seg_info = {0}; nbuf = dp_tx_prepare_sg(vdev, nbuf, &seg_info, &msdu_info); if (!nbuf) goto fail; dp_verbose_debug("non-TSO SG frame %pK", vdev); DP_STATS_INC_PKT(vdev, tx_i.sg.sg_pkt, 1, qdf_nbuf_len(nbuf)); goto send_multiple; } if (qdf_likely(tx_exc_metadata->is_tx_sniffer)) { DP_STATS_INC_PKT(vdev, tx_i.sniffer_rcvd, 1, qdf_nbuf_len(nbuf)); dp_tx_add_tx_sniffer_meta_data(vdev, &msdu_info, tx_exc_metadata->ppdu_cookie); } /* * Get HW Queue to use for this frame. * TCL supports upto 4 DMA rings, out of which 3 rings are * dedicated for data and 1 for command. * "queue_id" maps to one hardware ring. * With each ring, we also associate a unique Tx descriptor pool * to minimize lock contention for these resources. */ dp_tx_get_queue(vdev, nbuf, &msdu_info.tx_queue); /* * Check exception descriptors */ if (dp_tx_exception_limit_check(vdev)) goto fail; /* Single linear frame */ /* * If nbuf is a simple linear frame, use send_single function to * prepare direct-buffer type TCL descriptor and enqueue to TCL * SRNG. There is no need to setup a MSDU extension descriptor. */ nbuf = dp_tx_send_msdu_single(vdev, nbuf, &msdu_info, tx_exc_metadata->peer_id, tx_exc_metadata); dp_vdev_unref_delete(soc, vdev, DP_MOD_ID_TX_EXCEPTION); return nbuf; send_multiple: nbuf = dp_tx_send_msdu_multiple(vdev, nbuf, &msdu_info); fail: if (vdev) dp_vdev_unref_delete(soc, vdev, DP_MOD_ID_TX_EXCEPTION); dp_verbose_debug("pkt send failed"); return nbuf; } /** * dp_tx_send_exception_vdev_id_check() - Transmit a frame on a given VAP * in exception path in special case to avoid regular exception path chk. * @soc: DP soc handle * @vdev_id: id of DP vdev handle * @nbuf: skb * @tx_exc_metadata: Handle that holds exception path meta data * * Entry point for Core Tx layer (DP_TX) invoked from * hard_start_xmit in OSIF/HDD to transmit frames through fw * * Return: NULL on success, * nbuf when it fails to send */ qdf_nbuf_t dp_tx_send_exception_vdev_id_check(struct cdp_soc_t *soc_hdl, uint8_t vdev_id, qdf_nbuf_t nbuf, struct cdp_tx_exception_metadata *tx_exc_metadata) { struct dp_soc *soc = cdp_soc_t_to_dp_soc(soc_hdl); struct dp_vdev *vdev = dp_vdev_get_ref_by_id(soc, vdev_id, DP_MOD_ID_TX_EXCEPTION); if (qdf_unlikely(!vdev)) goto fail; if (qdf_unlikely(dp_tx_per_pkt_vdev_id_check(nbuf, vdev) == QDF_STATUS_E_FAILURE)) { DP_STATS_INC(vdev, tx_i.dropped.fail_per_pkt_vdev_id_check, 1); goto fail; } /* Unref count as it will agin be taken inside dp_tx_exception */ dp_vdev_unref_delete(soc, vdev, DP_MOD_ID_TX_EXCEPTION); return dp_tx_send_exception(soc_hdl, vdev_id, nbuf, tx_exc_metadata); fail: if (vdev) dp_vdev_unref_delete(soc, vdev, DP_MOD_ID_TX_EXCEPTION); dp_verbose_debug("pkt send failed"); return nbuf; } /** * dp_tx_send_mesh() - Transmit mesh frame on a given VAP * @soc: DP soc handle * @vdev_id: DP vdev handle * @nbuf: skb * * Entry point for Core Tx layer (DP_TX) invoked from * hard_start_xmit in OSIF/HDD * * Return: NULL on success, * nbuf when it fails to send */ #ifdef MESH_MODE_SUPPORT qdf_nbuf_t dp_tx_send_mesh(struct cdp_soc_t *soc_hdl, uint8_t vdev_id, qdf_nbuf_t nbuf) { struct dp_soc *soc = cdp_soc_t_to_dp_soc(soc_hdl); struct meta_hdr_s *mhdr; qdf_nbuf_t nbuf_mesh = NULL; qdf_nbuf_t nbuf_clone = NULL; struct dp_vdev *vdev; uint8_t no_enc_frame = 0; nbuf_mesh = qdf_nbuf_unshare(nbuf); if (!nbuf_mesh) { QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_ERROR, "qdf_nbuf_unshare failed"); return nbuf; } vdev = dp_vdev_get_ref_by_id(soc, vdev_id, DP_MOD_ID_MESH); if (!vdev) { QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_ERROR, "vdev is NULL for vdev_id %d", vdev_id); return nbuf; } nbuf = nbuf_mesh; mhdr = (struct meta_hdr_s *)qdf_nbuf_data(nbuf); if ((vdev->sec_type != cdp_sec_type_none) && (mhdr->flags & METAHDR_FLAG_NOENCRYPT)) no_enc_frame = 1; if (mhdr->flags & METAHDR_FLAG_NOQOS) qdf_nbuf_set_priority(nbuf, HTT_TX_EXT_TID_NON_QOS_MCAST_BCAST); if ((mhdr->flags & METAHDR_FLAG_INFO_UPDATED) && !no_enc_frame) { nbuf_clone = qdf_nbuf_clone(nbuf); if (!nbuf_clone) { QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_ERROR, "qdf_nbuf_clone failed"); dp_vdev_unref_delete(soc, vdev, DP_MOD_ID_MESH); return nbuf; } qdf_nbuf_set_tx_ftype(nbuf_clone, CB_FTYPE_MESH_TX_INFO); } if (nbuf_clone) { if (!dp_tx_send(soc_hdl, vdev_id, nbuf_clone)) { DP_STATS_INC(vdev, tx_i.mesh.exception_fw, 1); } else { qdf_nbuf_free(nbuf_clone); } } if (no_enc_frame) qdf_nbuf_set_tx_ftype(nbuf, CB_FTYPE_MESH_TX_INFO); else qdf_nbuf_set_tx_ftype(nbuf, CB_FTYPE_INVALID); nbuf = dp_tx_send(soc_hdl, vdev_id, nbuf); if ((!nbuf) && no_enc_frame) { DP_STATS_INC(vdev, tx_i.mesh.exception_fw, 1); } dp_vdev_unref_delete(soc, vdev, DP_MOD_ID_MESH); return nbuf; } #else qdf_nbuf_t dp_tx_send_mesh(struct cdp_soc_t *soc, uint8_t vdev_id, qdf_nbuf_t nbuf) { return dp_tx_send(soc, vdev_id, nbuf); } #endif /** * dp_tx_nawds_handler() - NAWDS handler * * @soc: DP soc handle * @vdev_id: id of DP vdev handle * @msdu_info: msdu_info required to create HTT metadata * @nbuf: skb * * This API transfers the multicast frames with the peer id * on NAWDS enabled peer. * Return: none */ static inline void dp_tx_nawds_handler(struct dp_soc *soc, struct dp_vdev *vdev, struct dp_tx_msdu_info_s *msdu_info, qdf_nbuf_t nbuf) { struct dp_peer *peer = NULL; qdf_nbuf_t nbuf_clone = NULL; uint16_t peer_id = DP_INVALID_PEER; uint16_t sa_peer_id = DP_INVALID_PEER; struct dp_ast_entry *ast_entry = NULL; qdf_ether_header_t *eh = (qdf_ether_header_t *)qdf_nbuf_data(nbuf); struct dp_txrx_peer *txrx_peer; if (!soc->ast_offload_support) { if (qdf_nbuf_get_tx_ftype(nbuf) == CB_FTYPE_INTRABSS_FWD) { qdf_spin_lock_bh(&soc->ast_lock); ast_entry = dp_peer_ast_hash_find_by_pdevid (soc, (uint8_t *)(eh->ether_shost), vdev->pdev->pdev_id); if (ast_entry) sa_peer_id = ast_entry->peer_id; qdf_spin_unlock_bh(&soc->ast_lock); } } else { if ((qdf_nbuf_get_tx_ftype(nbuf) == CB_FTYPE_INTRABSS_FWD) && qdf_nbuf_get_tx_fctx(nbuf)) sa_peer_id = *(uint32_t *)qdf_nbuf_get_tx_fctx(nbuf); } qdf_spin_lock_bh(&vdev->peer_list_lock); TAILQ_FOREACH(peer, &vdev->peer_list, peer_list_elem) { txrx_peer = dp_get_txrx_peer(peer); qdf_assert_always(txrx_peer); if (!txrx_peer->bss_peer && txrx_peer->nawds_enabled) { peer_id = peer->peer_id; /* Multicast packets needs to be * dropped in case of intra bss forwarding */ if (sa_peer_id == peer->peer_id) { dp_tx_debug("multicast packet"); DP_STATS_INC(peer, tx.nawds_mcast_drop, 1); continue; } nbuf_clone = qdf_nbuf_clone(nbuf); if (!nbuf_clone) { QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_ERROR, FL("nbuf clone failed")); break; } nbuf_clone = dp_tx_send_msdu_single(vdev, nbuf_clone, msdu_info, peer_id, NULL); if (nbuf_clone) { dp_tx_debug("pkt send failed"); qdf_nbuf_free(nbuf_clone); } else { if (peer_id != DP_INVALID_PEER) DP_STATS_INC_PKT(peer, tx.nawds_mcast, 1, qdf_nbuf_len(nbuf)); } } } qdf_spin_unlock_bh(&vdev->peer_list_lock); } #ifdef QCA_DP_TX_NBUF_AND_NBUF_DATA_PREFETCH static inline void dp_tx_prefetch_nbuf_data(qdf_nbuf_t nbuf) { if (nbuf) { qdf_prefetch(&nbuf->len); qdf_prefetch(&nbuf->data); } } #else static inline void dp_tx_prefetch_nbuf_data(qdf_nbuf_t nbuf) { } #endif /** * dp_tx_send() - Transmit a frame on a given VAP * @soc: DP soc handle * @vdev_id: id of DP vdev handle * @nbuf: skb * * Entry point for Core Tx layer (DP_TX) invoked from * hard_start_xmit in OSIF/HDD or from dp_rx_process for intravap forwarding * cases * * Return: NULL on success, * nbuf when it fails to send */ qdf_nbuf_t dp_tx_send(struct cdp_soc_t *soc_hdl, uint8_t vdev_id, qdf_nbuf_t nbuf) { struct dp_soc *soc = cdp_soc_t_to_dp_soc(soc_hdl); uint16_t peer_id = HTT_INVALID_PEER; /* * doing a memzero is causing additional function call overhead * so doing static stack clearing */ struct dp_tx_msdu_info_s msdu_info = {0}; struct dp_vdev *vdev = NULL; if (qdf_unlikely(vdev_id >= MAX_VDEV_CNT)) return nbuf; /* * dp_vdev_get_ref_by_id does does a atomic operation avoid using * this in per packet path. * * As in this path vdev memory is already protected with netdev * tx lock */ vdev = soc->vdev_id_map[vdev_id]; if (qdf_unlikely(!vdev)) return nbuf; dp_verbose_debug("skb "QDF_MAC_ADDR_FMT, QDF_MAC_ADDR_REF(nbuf->data)); /* * Set Default Host TID value to invalid TID * (TID override disabled) */ msdu_info.tid = HTT_TX_EXT_TID_INVALID; DP_STATS_INC_PKT(vdev, tx_i.rcvd, 1, qdf_nbuf_len(nbuf)); if (qdf_unlikely(vdev->mesh_vdev)) { qdf_nbuf_t nbuf_mesh = dp_tx_extract_mesh_meta_data(vdev, nbuf, &msdu_info); if (!nbuf_mesh) { dp_verbose_debug("Extracting mesh metadata failed"); return nbuf; } nbuf = nbuf_mesh; } /* * Get HW Queue to use for this frame. * TCL supports upto 4 DMA rings, out of which 3 rings are * dedicated for data and 1 for command. * "queue_id" maps to one hardware ring. * With each ring, we also associate a unique Tx descriptor pool * to minimize lock contention for these resources. */ dp_tx_get_queue(vdev, nbuf, &msdu_info.tx_queue); /* * TCL H/W supports 2 DSCP-TID mapping tables. * Table 1 - Default DSCP-TID mapping table * Table 2 - 1 DSCP-TID override table * * If we need a different DSCP-TID mapping for this vap, * call tid_classify to extract DSCP/ToS from frame and * map to a TID and store in msdu_info. This is later used * to fill in TCL Input descriptor (per-packet TID override). */ dp_tx_classify_tid(vdev, nbuf, &msdu_info); /* * Classify the frame and call corresponding * "prepare" function which extracts the segment (TSO) * and fragmentation information (for TSO , SG, ME, or Raw) * into MSDU_INFO structure which is later used to fill * SW and HW descriptors. */ if (qdf_nbuf_is_tso(nbuf)) { dp_verbose_debug("TSO frame %pK", vdev); DP_STATS_INC_PKT(vdev->pdev, tso_stats.num_tso_pkts, 1, qdf_nbuf_len(nbuf)); if (dp_tx_prepare_tso(vdev, nbuf, &msdu_info)) { DP_STATS_INC_PKT(vdev->pdev, tso_stats.dropped_host, 1, qdf_nbuf_len(nbuf)); return nbuf; } goto send_multiple; } /* SG */ if (qdf_unlikely(qdf_nbuf_is_nonlinear(nbuf))) { if (qdf_nbuf_get_nr_frags(nbuf) > DP_TX_MAX_NUM_FRAGS - 1) { if (qdf_unlikely(qdf_nbuf_linearize(nbuf))) return nbuf; } else { struct dp_tx_seg_info_s seg_info = {0}; nbuf = dp_tx_prepare_sg(vdev, nbuf, &seg_info, &msdu_info); if (!nbuf) return NULL; dp_verbose_debug("non-TSO SG frame %pK", vdev); DP_STATS_INC_PKT(vdev, tx_i.sg.sg_pkt, 1, qdf_nbuf_len(nbuf)); goto send_multiple; } } if (qdf_unlikely(!dp_tx_mcast_enhance(vdev, nbuf))) return NULL; /* RAW */ if (qdf_unlikely(vdev->tx_encap_type == htt_cmn_pkt_type_raw)) { struct dp_tx_seg_info_s seg_info = {0}; nbuf = dp_tx_prepare_raw(vdev, nbuf, &seg_info, &msdu_info); if (!nbuf) return NULL; dp_verbose_debug("Raw frame %pK", vdev); goto send_multiple; } if (qdf_unlikely(vdev->nawds_enabled)) { qdf_ether_header_t *eh = (qdf_ether_header_t *) qdf_nbuf_data(nbuf); if (DP_FRAME_IS_MULTICAST((eh)->ether_dhost)) dp_tx_nawds_handler(soc, vdev, &msdu_info, nbuf); peer_id = DP_INVALID_PEER; DP_STATS_INC_PKT(vdev, tx_i.nawds_mcast, 1, qdf_nbuf_len(nbuf)); } /* Single linear frame */ /* * If nbuf is a simple linear frame, use send_single function to * prepare direct-buffer type TCL descriptor and enqueue to TCL * SRNG. There is no need to setup a MSDU extension descriptor. */ dp_tx_prefetch_nbuf_data(nbuf); nbuf = dp_tx_send_msdu_single(vdev, nbuf, &msdu_info, peer_id, NULL); return nbuf; send_multiple: nbuf = dp_tx_send_msdu_multiple(vdev, nbuf, &msdu_info); if (qdf_unlikely(nbuf && msdu_info.frm_type == dp_tx_frm_raw)) dp_tx_raw_prepare_unset(vdev->pdev->soc, nbuf); return nbuf; } /** * dp_tx_send_vdev_id_check() - Transmit a frame on a given VAP in special * case to vaoid check in perpkt path. * @soc: DP soc handle * @vdev_id: id of DP vdev handle * @nbuf: skb * * Entry point for Core Tx layer (DP_TX) invoked from * hard_start_xmit in OSIF/HDD to transmit packet through dp_tx_send * with special condition to avoid per pkt check in dp_tx_send * * Return: NULL on success, * nbuf when it fails to send */ qdf_nbuf_t dp_tx_send_vdev_id_check(struct cdp_soc_t *soc_hdl, uint8_t vdev_id, qdf_nbuf_t nbuf) { struct dp_soc *soc = cdp_soc_t_to_dp_soc(soc_hdl); struct dp_vdev *vdev = NULL; if (qdf_unlikely(vdev_id >= MAX_VDEV_CNT)) return nbuf; /* * dp_vdev_get_ref_by_id does does a atomic operation avoid using * this in per packet path. * * As in this path vdev memory is already protected with netdev * tx lock */ vdev = soc->vdev_id_map[vdev_id]; if (qdf_unlikely(!vdev)) return nbuf; if (qdf_unlikely(dp_tx_per_pkt_vdev_id_check(nbuf, vdev) == QDF_STATUS_E_FAILURE)) { DP_STATS_INC(vdev, tx_i.dropped.fail_per_pkt_vdev_id_check, 1); return nbuf; } return dp_tx_send(soc_hdl, vdev_id, nbuf); } #ifdef UMAC_SUPPORT_PROXY_ARP /** * dp_tx_proxy_arp() - Tx proxy arp handler * @vdev: datapath vdev handle * @buf: sk buffer * * Return: status */ static inline int dp_tx_proxy_arp(struct dp_vdev *vdev, qdf_nbuf_t nbuf) { if (vdev->osif_proxy_arp) return vdev->osif_proxy_arp(vdev->osif_vdev, nbuf); /* * when UMAC_SUPPORT_PROXY_ARP is defined, we expect * osif_proxy_arp has a valid function pointer assigned * to it */ dp_tx_err("valid function pointer for osif_proxy_arp is expected!!\n"); return QDF_STATUS_NOT_INITIALIZED; } #else /** * dp_tx_proxy_arp() - Tx proxy arp handler * @vdev: datapath vdev handle * @buf: sk buffer * * This function always return 0 when UMAC_SUPPORT_PROXY_ARP * is not defined. * * Return: status */ static inline int dp_tx_proxy_arp(struct dp_vdev *vdev, qdf_nbuf_t nbuf) { return QDF_STATUS_SUCCESS; } #endif /** * dp_tx_reinject_handler() - Tx Reinject Handler * @soc: datapath soc handle * @vdev: datapath vdev handle * @tx_desc: software descriptor head pointer * @status : Tx completion status from HTT descriptor * @reinject_reason : reinject reason from HTT descriptor * * This function reinjects frames back to Target. * Todo - Host queue needs to be added * * Return: none */ void dp_tx_reinject_handler(struct dp_soc *soc, struct dp_vdev *vdev, struct dp_tx_desc_s *tx_desc, uint8_t *status, uint8_t reinject_reason) { struct dp_peer *peer = NULL; uint32_t peer_id = HTT_INVALID_PEER; qdf_nbuf_t nbuf = tx_desc->nbuf; qdf_nbuf_t nbuf_copy = NULL; struct dp_tx_msdu_info_s msdu_info; #ifdef WDS_VENDOR_EXTENSION int is_mcast = 0, is_ucast = 0; int num_peers_3addr = 0; qdf_ether_header_t *eth_hdr = (qdf_ether_header_t *)(qdf_nbuf_data(nbuf)); struct ieee80211_frame_addr4 *wh = (struct ieee80211_frame_addr4 *)(qdf_nbuf_data(nbuf)); #endif struct dp_txrx_peer *txrx_peer; qdf_assert(vdev); dp_tx_debug("Tx reinject path"); DP_STATS_INC_PKT(vdev, tx_i.reinject_pkts, 1, qdf_nbuf_len(tx_desc->nbuf)); #if defined(WLAN_FEATURE_11BE_MLO) && defined(WLAN_MLO_MULTI_CHIP) #ifdef WLAN_MCAST_MLO if (reinject_reason == HTT_TX_FW2WBM_REINJECT_REASON_MLO_MCAST) { if (soc->arch_ops.dp_tx_mcast_handler) soc->arch_ops.dp_tx_mcast_handler(soc, vdev, nbuf); dp_tx_desc_release(tx_desc, tx_desc->pool_id); return; } #endif #endif #ifdef WDS_VENDOR_EXTENSION if (qdf_unlikely(vdev->tx_encap_type != htt_cmn_pkt_type_raw)) { is_mcast = (IS_MULTICAST(wh->i_addr1)) ? 1 : 0; } else { is_mcast = (IS_MULTICAST(eth_hdr->ether_dhost)) ? 1 : 0; } is_ucast = !is_mcast; qdf_spin_lock_bh(&vdev->peer_list_lock); TAILQ_FOREACH(peer, &vdev->peer_list, peer_list_elem) { txrx_peer = dp_get_txrx_peer(peer); qdf_assert_always(txrx_peer); if (txrx_peer->bss_peer) continue; /* Detect wds peers that use 3-addr framing for mcast. * if there are any, the bss_peer is used to send the * the mcast frame using 3-addr format. all wds enabled * peers that use 4-addr framing for mcast frames will * be duplicated and sent as 4-addr frames below. */ if (!txrx_peer->wds_enabled || !txrx_peer->wds_ecm.wds_tx_mcast_4addr) { num_peers_3addr = 1; break; } } qdf_spin_unlock_bh(&vdev->peer_list_lock); #endif if (qdf_unlikely(vdev->mesh_vdev)) { DP_TX_FREE_SINGLE_BUF(vdev->pdev->soc, tx_desc->nbuf); } else { qdf_spin_lock_bh(&vdev->peer_list_lock); TAILQ_FOREACH(peer, &vdev->peer_list, peer_list_elem) { txrx_peer = dp_get_txrx_peer(peer); qdf_assert_always(txrx_peer); if ((txrx_peer->peer_id != HTT_INVALID_PEER) && #ifdef WDS_VENDOR_EXTENSION /* * . if 3-addr STA, then send on BSS Peer * . if Peer WDS enabled and accept 4-addr mcast, * send mcast on that peer only * . if Peer WDS enabled and accept 4-addr ucast, * send ucast on that peer only */ ((txrx_peer->bss_peer && num_peers_3addr && is_mcast) || (txrx_peer->wds_enabled && ((is_mcast && txrx_peer->wds_ecm.wds_tx_mcast_4addr) || (is_ucast && txrx_peer->wds_ecm.wds_tx_ucast_4addr))))) { #else (txrx_peer->bss_peer && (dp_tx_proxy_arp(vdev, nbuf) == QDF_STATUS_SUCCESS))) { #endif peer_id = DP_INVALID_PEER; nbuf_copy = qdf_nbuf_copy(nbuf); if (!nbuf_copy) { dp_tx_debug("nbuf copy failed"); break; } qdf_mem_zero(&msdu_info, sizeof(msdu_info)); dp_tx_get_queue(vdev, nbuf, &msdu_info.tx_queue); nbuf_copy = dp_tx_send_msdu_single(vdev, nbuf_copy, &msdu_info, peer_id, NULL); if (nbuf_copy) { dp_tx_debug("pkt send failed"); qdf_nbuf_free(nbuf_copy); } } } qdf_spin_unlock_bh(&vdev->peer_list_lock); } qdf_nbuf_free(nbuf); dp_tx_desc_release(tx_desc, tx_desc->pool_id); } /** * dp_tx_inspect_handler() - Tx Inspect Handler * @soc: datapath soc handle * @vdev: datapath vdev handle * @tx_desc: software descriptor head pointer * @status : Tx completion status from HTT descriptor * * Handles Tx frames sent back to Host for inspection * (ProxyARP) * * Return: none */ void dp_tx_inspect_handler(struct dp_soc *soc, struct dp_vdev *vdev, struct dp_tx_desc_s *tx_desc, uint8_t *status) { QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_INFO, "%s Tx inspect path", __func__); DP_STATS_INC_PKT(vdev, tx_i.inspect_pkts, 1, qdf_nbuf_len(tx_desc->nbuf)); DP_TX_FREE_SINGLE_BUF(soc, tx_desc->nbuf); dp_tx_desc_release(tx_desc, tx_desc->pool_id); } #ifdef MESH_MODE_SUPPORT /** * dp_tx_comp_fill_tx_completion_stats() - Fill per packet Tx completion stats * in mesh meta header * @tx_desc: software descriptor head pointer * @ts: pointer to tx completion stats * Return: none */ static void dp_tx_comp_fill_tx_completion_stats(struct dp_tx_desc_s *tx_desc, struct hal_tx_completion_status *ts) { qdf_nbuf_t netbuf = tx_desc->nbuf; if (!tx_desc->msdu_ext_desc) { if (qdf_nbuf_pull_head(netbuf, tx_desc->pkt_offset) == NULL) { QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_ERROR, "netbuf %pK offset %d", netbuf, tx_desc->pkt_offset); return; } } } #else static void dp_tx_comp_fill_tx_completion_stats(struct dp_tx_desc_s *tx_desc, struct hal_tx_completion_status *ts) { } #endif #ifdef QCA_PEER_EXT_STATS /* * dp_tx_compute_tid_delay() - Compute per TID delay * @stats: Per TID delay stats * @tx_desc: Software Tx descriptor * * Compute the software enqueue and hw enqueue delays and * update the respective histograms * * Return: void */ static void dp_tx_compute_tid_delay(struct cdp_delay_tid_stats *stats, struct dp_tx_desc_s *tx_desc) { struct cdp_delay_tx_stats *tx_delay = &stats->tx_delay; int64_t current_timestamp, timestamp_ingress, timestamp_hw_enqueue; uint32_t sw_enqueue_delay, fwhw_transmit_delay; current_timestamp = qdf_ktime_to_ms(qdf_ktime_real_get()); timestamp_ingress = qdf_nbuf_get_timestamp(tx_desc->nbuf); timestamp_hw_enqueue = tx_desc->timestamp; sw_enqueue_delay = (uint32_t)(timestamp_hw_enqueue - timestamp_ingress); fwhw_transmit_delay = (uint32_t)(current_timestamp - timestamp_hw_enqueue); /* * Update the Tx software enqueue delay and HW enque-Completion delay. */ dp_hist_update_stats(&tx_delay->tx_swq_delay, sw_enqueue_delay); dp_hist_update_stats(&tx_delay->hwtx_delay, fwhw_transmit_delay); } /* * dp_tx_update_peer_ext_stats() - Update the peer extended stats * @peer: DP peer context * @tx_desc: Tx software descriptor * @tid: Transmission ID * @ring_id: Rx CPU context ID/CPU_ID * * Update the peer extended stats. These are enhanced other * delay stats per msdu level. * * Return: void */ static void dp_tx_update_peer_ext_stats(struct dp_peer *peer, struct dp_tx_desc_s *tx_desc, uint8_t tid, uint8_t ring_id) { struct dp_pdev *pdev = peer->vdev->pdev; struct dp_soc *soc = NULL; struct cdp_peer_ext_stats *pext_stats = NULL; soc = pdev->soc; if (qdf_likely(!wlan_cfg_is_peer_ext_stats_enabled(soc->wlan_cfg_ctx))) return; pext_stats = peer->pext_stats; qdf_assert(pext_stats); qdf_assert(ring < CDP_MAX_TXRX_CTX); /* * For non-TID packets use the TID 9 */ if (qdf_unlikely(tid >= CDP_MAX_DATA_TIDS)) tid = CDP_MAX_DATA_TIDS - 1; dp_tx_compute_tid_delay(&pext_stats->delay_stats[tid][ring_id], tx_desc); } #else static inline void dp_tx_update_peer_ext_stats(struct dp_peer *peer, struct dp_tx_desc_s *tx_desc, uint8_t tid, uint8_t ring_id) { } #endif /** * dp_tx_compute_delay() - Compute and fill in all timestamps * to pass in correct fields * * @vdev: pdev handle * @tx_desc: tx descriptor * @tid: tid value * @ring_id: TCL or WBM ring number for transmit path * Return: none */ void dp_tx_compute_delay(struct dp_vdev *vdev, struct dp_tx_desc_s *tx_desc, uint8_t tid, uint8_t ring_id) { int64_t current_timestamp, timestamp_ingress, timestamp_hw_enqueue; uint32_t sw_enqueue_delay, fwhw_transmit_delay, interframe_delay; if (qdf_likely(!vdev->pdev->delay_stats_flag)) return; current_timestamp = qdf_ktime_to_ms(qdf_ktime_real_get()); timestamp_ingress = qdf_nbuf_get_timestamp(tx_desc->nbuf); timestamp_hw_enqueue = tx_desc->timestamp; sw_enqueue_delay = (uint32_t)(timestamp_hw_enqueue - timestamp_ingress); fwhw_transmit_delay = (uint32_t)(current_timestamp - timestamp_hw_enqueue); interframe_delay = (uint32_t)(timestamp_ingress - vdev->prev_tx_enq_tstamp); /* * Delay in software enqueue */ dp_update_delay_stats(vdev->pdev, sw_enqueue_delay, tid, CDP_DELAY_STATS_SW_ENQ, ring_id); /* * Delay between packet enqueued to HW and Tx completion */ dp_update_delay_stats(vdev->pdev, fwhw_transmit_delay, tid, CDP_DELAY_STATS_FW_HW_TRANSMIT, ring_id); /* * Update interframe delay stats calculated at hardstart receive point. * Value of vdev->prev_tx_enq_tstamp will be 0 for 1st frame, so * interframe delay will not be calculate correctly for 1st frame. * On the other side, this will help in avoiding extra per packet check * of !vdev->prev_tx_enq_tstamp. */ dp_update_delay_stats(vdev->pdev, interframe_delay, tid, CDP_DELAY_STATS_TX_INTERFRAME, ring_id); vdev->prev_tx_enq_tstamp = timestamp_ingress; } #ifdef DISABLE_DP_STATS static inline void dp_update_no_ack_stats(qdf_nbuf_t nbuf, struct dp_txrx_peer *peer) { } #else static inline void dp_update_no_ack_stats(qdf_nbuf_t nbuf, struct dp_txrx_peer *txrx_peer) { enum qdf_proto_subtype subtype = QDF_PROTO_INVALID; DPTRACE(qdf_dp_track_noack_check(nbuf, &subtype)); if (subtype != QDF_PROTO_INVALID) DP_STATS_INC(peer, tx.no_ack_count[subtype], 1); } #endif /** * dp_tx_update_peer_stats() - Update peer stats from Tx completion indications * per wbm ring * * @tx_desc: software descriptor head pointer * @ts: Tx completion status * @peer: peer handle * @ring_id: ring number * * Return: None */ static inline void dp_tx_update_peer_stats(struct dp_tx_desc_s *tx_desc, struct hal_tx_completion_status *ts, struct dp_peer *peer, uint8_t ring_id) { struct dp_pdev *pdev = peer->vdev->pdev; struct dp_soc *soc = NULL; uint8_t mcs, pkt_type; uint8_t tid = ts->tid; uint32_t length; struct cdp_tid_tx_stats *tid_stats; if (!pdev) return; if (qdf_unlikely(tid >= CDP_MAX_DATA_TIDS)) tid = CDP_MAX_DATA_TIDS - 1; tid_stats = &pdev->stats.tid_stats.tid_tx_stats[ring_id][tid]; soc = pdev->soc; mcs = ts->mcs; pkt_type = ts->pkt_type; if (ts->release_src != HAL_TX_COMP_RELEASE_SOURCE_TQM) { dp_err("Release source is not from TQM"); return; } length = qdf_nbuf_len(tx_desc->nbuf); DP_STATS_INC_PKT(peer, tx.comp_pkt, 1, length); if (qdf_unlikely(pdev->delay_stats_flag)) dp_tx_compute_delay(peer->vdev, tx_desc, tid, ring_id); DP_STATS_INCC(peer, tx.dropped.age_out, 1, (ts->status == HAL_TX_TQM_RR_REM_CMD_AGED)); DP_STATS_INCC_PKT(peer, tx.dropped.fw_rem, 1, length, (ts->status == HAL_TX_TQM_RR_REM_CMD_REM)); DP_STATS_INCC(peer, tx.dropped.fw_rem_notx, 1, (ts->status == HAL_TX_TQM_RR_REM_CMD_NOTX)); DP_STATS_INCC(peer, tx.dropped.fw_rem_tx, 1, (ts->status == HAL_TX_TQM_RR_REM_CMD_TX)); DP_STATS_INCC(peer, tx.dropped.fw_reason1, 1, (ts->status == HAL_TX_TQM_RR_FW_REASON1)); DP_STATS_INCC(peer, tx.dropped.fw_reason2, 1, (ts->status == HAL_TX_TQM_RR_FW_REASON2)); DP_STATS_INCC(peer, tx.dropped.fw_reason3, 1, (ts->status == HAL_TX_TQM_RR_FW_REASON3)); /* * tx_failed is ideally supposed to be updated from HTT ppdu completion * stats. But in IPQ807X/IPQ6018 chipsets owing to hw limitation there * are no completions for failed cases. Hence updating tx_failed from * data path. Please note that if tx_failed is fixed to be from ppdu, * then this has to be removed */ peer->stats.tx.tx_failed = peer->stats.tx.dropped.fw_rem.num + peer->stats.tx.dropped.fw_rem_notx + peer->stats.tx.dropped.fw_rem_tx + peer->stats.tx.dropped.age_out + peer->stats.tx.dropped.fw_reason1 + peer->stats.tx.dropped.fw_reason2 + peer->stats.tx.dropped.fw_reason3; if (ts->status < CDP_MAX_TX_TQM_STATUS) { tid_stats->tqm_status_cnt[ts->status]++; } if (ts->status != HAL_TX_TQM_RR_FRAME_ACKED) { DP_STATS_INCC(peer, tx.failed_retry_count, 1, ts->transmit_cnt > DP_RETRY_COUNT); dp_update_no_ack_stats(tx_desc->nbuf, peer); return; } DP_STATS_INCC(peer, tx.retry_count, 1, ts->transmit_cnt > 1); DP_STATS_INCC(peer, tx.multiple_retry_count, 1, ts->transmit_cnt > 2); DP_STATS_INCC(peer, tx.ofdma, 1, ts->ofdma); DP_STATS_INCC(peer, tx.amsdu_cnt, 1, ts->msdu_part_of_amsdu); DP_STATS_INCC(peer, tx.non_amsdu_cnt, 1, !ts->msdu_part_of_amsdu); /* * Following Rate Statistics are updated from HTT PPDU events from FW. * Return from here if HTT PPDU events are enabled. */ if (!(soc->process_tx_status)) return; DP_STATS_INCC(peer, tx.pkt_type[pkt_type].mcs_count[MAX_MCS - 1], 1, ((mcs >= MAX_MCS_11A) && (pkt_type == DOT11_A))); DP_STATS_INCC(peer, tx.pkt_type[pkt_type].mcs_count[mcs], 1, ((mcs < (MAX_MCS_11A)) && (pkt_type == DOT11_A))); DP_STATS_INCC(peer, tx.pkt_type[pkt_type].mcs_count[MAX_MCS - 1], 1, ((mcs >= MAX_MCS_11B) && (pkt_type == DOT11_B))); DP_STATS_INCC(peer, tx.pkt_type[pkt_type].mcs_count[mcs], 1, ((mcs < MAX_MCS_11B) && (pkt_type == DOT11_B))); DP_STATS_INCC(peer, tx.pkt_type[pkt_type].mcs_count[MAX_MCS - 1], 1, ((mcs >= MAX_MCS_11A) && (pkt_type == DOT11_N))); DP_STATS_INCC(peer, tx.pkt_type[pkt_type].mcs_count[mcs], 1, ((mcs < MAX_MCS_11A) && (pkt_type == DOT11_N))); DP_STATS_INCC(peer, tx.pkt_type[pkt_type].mcs_count[MAX_MCS - 1], 1, ((mcs >= MAX_MCS_11AC) && (pkt_type == DOT11_AC))); DP_STATS_INCC(peer, tx.pkt_type[pkt_type].mcs_count[mcs], 1, ((mcs < MAX_MCS_11AC) && (pkt_type == DOT11_AC))); DP_STATS_INCC(peer, tx.pkt_type[pkt_type].mcs_count[MAX_MCS - 1], 1, ((mcs >= (MAX_MCS - 1)) && (pkt_type == DOT11_AX))); DP_STATS_INCC(peer, tx.pkt_type[pkt_type].mcs_count[mcs], 1, ((mcs < (MAX_MCS - 1)) && (pkt_type == DOT11_AX))); DP_STATS_INC(peer, tx.sgi_count[ts->sgi], 1); DP_STATS_INC(peer, tx.bw[ts->bw], 1); DP_STATS_UPD(peer, tx.last_ack_rssi, ts->ack_frame_rssi); DP_STATS_INC(peer, tx.wme_ac_type[TID_TO_WME_AC(ts->tid)], 1); DP_STATS_INCC(peer, tx.stbc, 1, ts->stbc); DP_STATS_INCC(peer, tx.ldpc, 1, ts->ldpc); DP_STATS_INCC(peer, tx.retries, 1, ts->transmit_cnt > 1); if (ts->first_msdu) { DP_STATS_INCC(peer, tx.retries_mpdu, 1, ts->transmit_cnt > 1); DP_STATS_INCC(peer, tx.mpdu_success_with_retries, qdf_do_div(ts->transmit_cnt, DP_RETRY_COUNT), ts->transmit_cnt > DP_RETRY_COUNT); } peer->stats.tx.last_tx_ts = qdf_system_ticks(); } #ifdef QCA_LL_TX_FLOW_CONTROL_V2 /** * dp_tx_flow_pool_lock() - take flow pool lock * @soc: core txrx main context * @tx_desc: tx desc * * Return: None */ static inline void dp_tx_flow_pool_lock(struct dp_soc *soc, struct dp_tx_desc_s *tx_desc) { struct dp_tx_desc_pool_s *pool; uint8_t desc_pool_id; desc_pool_id = tx_desc->pool_id; pool = &soc->tx_desc[desc_pool_id]; qdf_spin_lock_bh(&pool->flow_pool_lock); } /** * dp_tx_flow_pool_unlock() - release flow pool lock * @soc: core txrx main context * @tx_desc: tx desc * * Return: None */ static inline void dp_tx_flow_pool_unlock(struct dp_soc *soc, struct dp_tx_desc_s *tx_desc) { struct dp_tx_desc_pool_s *pool; uint8_t desc_pool_id; desc_pool_id = tx_desc->pool_id; pool = &soc->tx_desc[desc_pool_id]; qdf_spin_unlock_bh(&pool->flow_pool_lock); } #else static inline void dp_tx_flow_pool_lock(struct dp_soc *soc, struct dp_tx_desc_s *tx_desc) { } static inline void dp_tx_flow_pool_unlock(struct dp_soc *soc, struct dp_tx_desc_s *tx_desc) { } #endif /** * dp_tx_notify_completion() - Notify tx completion for this desc * @soc: core txrx main context * @vdev: datapath vdev handle * @tx_desc: tx desc * @netbuf: buffer * @status: tx status * * Return: none */ static inline void dp_tx_notify_completion(struct dp_soc *soc, struct dp_vdev *vdev, struct dp_tx_desc_s *tx_desc, qdf_nbuf_t netbuf, uint8_t status) { void *osif_dev; ol_txrx_completion_fp tx_compl_cbk = NULL; uint16_t flag = BIT(QDF_TX_RX_STATUS_DOWNLOAD_SUCC); qdf_assert(tx_desc); dp_tx_flow_pool_lock(soc, tx_desc); if (!vdev || !vdev->osif_vdev) { dp_tx_flow_pool_unlock(soc, tx_desc); return; } osif_dev = vdev->osif_vdev; tx_compl_cbk = vdev->tx_comp; dp_tx_flow_pool_unlock(soc, tx_desc); if (status == HAL_TX_TQM_RR_FRAME_ACKED) flag |= BIT(QDF_TX_RX_STATUS_OK); if (tx_compl_cbk) tx_compl_cbk(netbuf, osif_dev, flag); } /** dp_tx_sojourn_stats_process() - Collect sojourn stats * @pdev: pdev handle * @tid: tid value * @txdesc_ts: timestamp from txdesc * @ppdu_id: ppdu id * * Return: none */ #ifdef FEATURE_PERPKT_INFO static inline void dp_tx_sojourn_stats_process(struct dp_pdev *pdev, struct dp_peer *peer, uint8_t tid, uint64_t txdesc_ts, uint32_t ppdu_id) { uint64_t delta_ms; struct cdp_tx_sojourn_stats *sojourn_stats; if (qdf_unlikely(!pdev->enhanced_stats_en)) return; if (qdf_unlikely(tid == HTT_INVALID_TID || tid >= CDP_DATA_TID_MAX)) return; if (qdf_unlikely(!pdev->sojourn_buf)) return; sojourn_stats = (struct cdp_tx_sojourn_stats *) qdf_nbuf_data(pdev->sojourn_buf); sojourn_stats->cookie = (void *)peer->rdkstats_ctx; delta_ms = qdf_ktime_to_ms(qdf_ktime_real_get()) - txdesc_ts; qdf_ewma_tx_lag_add(&peer->avg_sojourn_msdu[tid], delta_ms); sojourn_stats->sum_sojourn_msdu[tid] = delta_ms; sojourn_stats->num_msdus[tid] = 1; sojourn_stats->avg_sojourn_msdu[tid].internal = peer->avg_sojourn_msdu[tid].internal; dp_wdi_event_handler(WDI_EVENT_TX_SOJOURN_STAT, pdev->soc, pdev->sojourn_buf, HTT_INVALID_PEER, WDI_NO_VAL, pdev->pdev_id); sojourn_stats->sum_sojourn_msdu[tid] = 0; sojourn_stats->num_msdus[tid] = 0; sojourn_stats->avg_sojourn_msdu[tid].internal = 0; } #else static inline void dp_tx_sojourn_stats_process(struct dp_pdev *pdev, struct dp_peer *peer, uint8_t tid, uint64_t txdesc_ts, uint32_t ppdu_id) { } #endif #ifdef WLAN_FEATURE_PKT_CAPTURE_V2 /** * dp_send_completion_to_pkt_capture() - send tx completion to packet capture * @soc: dp_soc handle * @desc: Tx Descriptor * @ts: HAL Tx completion descriptor contents * * This function is used to send tx completion to packet capture */ void dp_send_completion_to_pkt_capture(struct dp_soc *soc, struct dp_tx_desc_s *desc, struct hal_tx_completion_status *ts) { dp_wdi_event_handler(WDI_EVENT_PKT_CAPTURE_TX_DATA, soc, desc, ts->peer_id, WDI_NO_VAL, desc->pdev->pdev_id); } #endif /** * dp_tx_comp_process_desc() - Process tx descriptor and free associated nbuf * @soc: DP Soc handle * @tx_desc: software Tx descriptor * @ts : Tx completion status from HAL/HTT descriptor * * Return: none */ void dp_tx_comp_process_desc(struct dp_soc *soc, struct dp_tx_desc_s *desc, struct hal_tx_completion_status *ts, struct dp_txrx_peer *txrx_peer) { uint64_t time_latency = 0; uint16_t peer_id = DP_INVALID_PEER_ID; /* * m_copy/tx_capture modes are not supported for * scatter gather packets */ if (qdf_unlikely(!!desc->pdev->latency_capture_enable)) { time_latency = (qdf_ktime_to_ms(qdf_ktime_real_get()) - desc->timestamp); } dp_send_completion_to_pkt_capture(soc, desc, ts); if (dp_tx_pkt_tracepoints_enabled()) qdf_trace_dp_packet(desc->nbuf, QDF_TX, desc->msdu_ext_desc ? desc->msdu_ext_desc->tso_desc : NULL, desc->timestamp); if (!(desc->msdu_ext_desc)) { dp_tx_enh_unmap(soc, desc); if (txrx_peer) peer_id = txrx_peer->peer_id; if (QDF_STATUS_SUCCESS == dp_monitor_tx_add_to_comp_queue(soc, desc, ts, peer_id)) { return; } if (QDF_STATUS_SUCCESS == dp_get_completion_indication_for_stack(soc, desc->pdev, txrx_peer, ts, desc->nbuf, time_latency)) { dp_send_completion_to_stack(soc, desc->pdev, ts->peer_id, ts->ppdu_id, desc->nbuf); return; } } desc->flags |= DP_TX_DESC_FLAG_COMPLETED_TX; dp_tx_comp_free_buf(soc, desc); } #ifdef DISABLE_DP_STATS /** * dp_tx_update_connectivity_stats() - update tx connectivity stats * @soc: core txrx main context * @tx_desc: tx desc * @status: tx status * * Return: none */ static inline void dp_tx_update_connectivity_stats(struct dp_soc *soc, struct dp_vdev *vdev, struct dp_tx_desc_s *tx_desc, uint8_t status) { } #else static inline void dp_tx_update_connectivity_stats(struct dp_soc *soc, struct dp_vdev *vdev, struct dp_tx_desc_s *tx_desc, uint8_t status) { void *osif_dev; ol_txrx_stats_rx_fp stats_cbk; uint8_t pkt_type; qdf_assert(tx_desc); if (!vdev || !vdev->osif_vdev || !vdev->stats_cb) return; osif_dev = vdev->osif_vdev; stats_cbk = vdev->stats_cb; stats_cbk(tx_desc->nbuf, osif_dev, PKT_TYPE_TX_HOST_FW_SENT, &pkt_type); if (status == HAL_TX_TQM_RR_FRAME_ACKED) stats_cbk(tx_desc->nbuf, osif_dev, PKT_TYPE_TX_ACK_CNT, &pkt_type); } #endif #ifdef WLAN_FEATURE_TSF_UPLINK_DELAY void dp_set_delta_tsf(struct cdp_soc_t *soc_hdl, uint8_t vdev_id, uint32_t delta_tsf) { struct dp_soc *soc = cdp_soc_t_to_dp_soc(soc_hdl); struct dp_vdev *vdev = dp_vdev_get_ref_by_id(soc, vdev_id, DP_MOD_ID_CDP); if (!vdev) { dp_err_rl("vdev %d does not exist", vdev_id); return; } vdev->delta_tsf = delta_tsf; dp_debug("vdev id %u delta_tsf %u", vdev_id, delta_tsf); dp_vdev_unref_delete(soc, vdev, DP_MOD_ID_CDP); } QDF_STATUS dp_set_tsf_ul_delay_report(struct cdp_soc_t *soc_hdl, uint8_t vdev_id, bool enable) { struct dp_soc *soc = cdp_soc_t_to_dp_soc(soc_hdl); struct dp_vdev *vdev = dp_vdev_get_ref_by_id(soc, vdev_id, DP_MOD_ID_CDP); if (!vdev) { dp_err_rl("vdev %d does not exist", vdev_id); return QDF_STATUS_E_FAILURE; } qdf_atomic_set(&vdev->ul_delay_report, enable); dp_vdev_unref_delete(soc, vdev, DP_MOD_ID_CDP); return QDF_STATUS_SUCCESS; } QDF_STATUS dp_get_uplink_delay(struct cdp_soc_t *soc_hdl, uint8_t vdev_id, uint32_t *val) { struct dp_soc *soc = cdp_soc_t_to_dp_soc(soc_hdl); struct dp_vdev *vdev; uint32_t delay_accum; uint32_t pkts_accum; vdev = dp_vdev_get_ref_by_id(soc, vdev_id, DP_MOD_ID_CDP); if (!vdev) { dp_err_rl("vdev %d does not exist", vdev_id); return QDF_STATUS_E_FAILURE; } if (!qdf_atomic_read(&vdev->ul_delay_report)) { dp_vdev_unref_delete(soc, vdev, DP_MOD_ID_CDP); return QDF_STATUS_E_FAILURE; } /* Average uplink delay based on current accumulated values */ delay_accum = qdf_atomic_read(&vdev->ul_delay_accum); pkts_accum = qdf_atomic_read(&vdev->ul_pkts_accum); *val = delay_accum / pkts_accum; dp_debug("uplink_delay %u delay_accum %u pkts_accum %u", *val, delay_accum, pkts_accum); /* Reset accumulated values to 0 */ qdf_atomic_set(&vdev->ul_delay_accum, 0); qdf_atomic_set(&vdev->ul_pkts_accum, 0); dp_vdev_unref_delete(soc, vdev, DP_MOD_ID_CDP); return QDF_STATUS_SUCCESS; } static void dp_tx_update_uplink_delay(struct dp_soc *soc, struct dp_vdev *vdev, struct hal_tx_completion_status *ts) { uint32_t buffer_ts; uint32_t delta_tsf; uint32_t ul_delay; /* Tx_rate_stats_info_valid is 0 and tsf is invalid then */ if (!ts->valid) return; if (qdf_unlikely(!vdev)) { dp_info_rl("vdev is null or delete in progrss"); return; } if (!qdf_atomic_read(&vdev->ul_delay_report)) return; delta_tsf = vdev->delta_tsf; /* buffer_timestamp is in units of 1024 us and is [31:13] of * WBM_RELEASE_RING_4. After left shift 10 bits, it's * valid up to 29 bits. */ buffer_ts = ts->buffer_timestamp << 10; ul_delay = ts->tsf - buffer_ts - delta_tsf; ul_delay &= 0x1FFFFFFF; /* mask 29 BITS */ if (ul_delay > 0x1000000) { dp_info_rl("----------------------\n" "Tx completion status:\n" "----------------------\n" "release_src = %d\n" "ppdu_id = 0x%x\n" "release_reason = %d\n" "tsf = %u (0x%x)\n" "buffer_timestamp = %u (0x%x)\n" "delta_tsf = %u (0x%x)\n", ts->release_src, ts->ppdu_id, ts->status, ts->tsf, ts->tsf, ts->buffer_timestamp, ts->buffer_timestamp, delta_tsf, delta_tsf); return; } ul_delay /= 1000; /* in unit of ms */ qdf_atomic_add(ul_delay, &vdev->ul_delay_accum); qdf_atomic_inc(&vdev->ul_pkts_accum); } #else /* !WLAN_FEATURE_TSF_UPLINK_DELAY */ static inline void dp_tx_update_uplink_delay(struct dp_soc *soc, struct dp_vdev *vdev, struct hal_tx_completion_status *ts) { } #endif /* WLAN_FEATURE_TSF_UPLINK_DELAY */ /** * dp_tx_comp_process_tx_status() - Parse and Dump Tx completion status info * @soc: DP soc handle * @tx_desc: software descriptor head pointer * @ts: Tx completion status * @txrx_peer: txrx peer handle * @ring_id: ring number * * Return: none */ void dp_tx_comp_process_tx_status(struct dp_soc *soc, struct dp_tx_desc_s *tx_desc, struct hal_tx_completion_status *ts, struct dp_txrx_peer *txrx_peer, uint8_t ring_id) { uint32_t length; qdf_ether_header_t *eh; struct dp_vdev *vdev = NULL; qdf_nbuf_t nbuf = tx_desc->nbuf; enum qdf_dp_tx_rx_status dp_status; if (!nbuf) { dp_info_rl("invalid tx descriptor. nbuf NULL"); goto out; } eh = (qdf_ether_header_t *)qdf_nbuf_data(nbuf); length = qdf_nbuf_len(nbuf); dp_status = dp_tx_hw_to_qdf(ts->status); DPTRACE(qdf_dp_trace_ptr(tx_desc->nbuf, QDF_DP_TRACE_LI_DP_FREE_PACKET_PTR_RECORD, QDF_TRACE_DEFAULT_PDEV_ID, qdf_nbuf_data_addr(nbuf), sizeof(qdf_nbuf_data(nbuf)), tx_desc->id, ts->status, dp_status)); dp_tx_comp_debug("-------------------- \n" "Tx Completion Stats: \n" "-------------------- \n" "ack_frame_rssi = %d \n" "first_msdu = %d \n" "last_msdu = %d \n" "msdu_part_of_amsdu = %d \n" "rate_stats valid = %d \n" "bw = %d \n" "pkt_type = %d \n" "stbc = %d \n" "ldpc = %d \n" "sgi = %d \n" "mcs = %d \n" "ofdma = %d \n" "tones_in_ru = %d \n" "tsf = %d \n" "ppdu_id = %d \n" "transmit_cnt = %d \n" "tid = %d \n" "peer_id = %d\n" "tx_status = %d\n", ts->ack_frame_rssi, ts->first_msdu, ts->last_msdu, ts->msdu_part_of_amsdu, ts->valid, ts->bw, ts->pkt_type, ts->stbc, ts->ldpc, ts->sgi, ts->mcs, ts->ofdma, ts->tones_in_ru, ts->tsf, ts->ppdu_id, ts->transmit_cnt, ts->tid, ts->peer_id, ts->status); /* Update SoC level stats */ DP_STATS_INCC(soc, tx.dropped_fw_removed, 1, (ts->status == HAL_TX_TQM_RR_REM_CMD_REM)); if (!txrx_peer) { dp_info_rl("peer is null or deletion in progress"); DP_STATS_INC_PKT(soc, tx.tx_invalid_peer, 1, length); goto out; } vdev = txrx_peer->vdev; dp_tx_update_connectivity_stats(soc, vdev, tx_desc, ts->status); dp_tx_update_uplink_delay(soc, vdev, ts); /* Update per-packet stats for mesh mode */ if (qdf_unlikely(vdev->mesh_vdev) && !(tx_desc->flags & DP_TX_DESC_FLAG_TO_FW)) dp_tx_comp_fill_tx_completion_stats(tx_desc, ts); /* Update peer level stats */ if (qdf_unlikely(txrx_peer->bss_peer && vdev->opmode == wlan_op_mode_ap)) { if (ts->status != HAL_TX_TQM_RR_REM_CMD_REM) { DP_STATS_INC_PKT(peer, tx.mcast, 1, length); if (txrx_peer->vdev->tx_encap_type == htt_cmn_pkt_type_ethernet && QDF_IS_ADDR_BROADCAST(eh->ether_dhost)) { DP_STATS_INC_PKT(peer, tx.bcast, 1, length); } } } else { DP_STATS_INC_PKT(peer, tx.ucast, 1, length); if (ts->status == HAL_TX_TQM_RR_FRAME_ACKED) { DP_STATS_INC_PKT(peer, tx.tx_success, 1, length); if (qdf_unlikely(txrx_peer->in_twt)) { DP_STATS_INC_PKT(peer, tx.tx_success_twt, 1, length); } } } dp_tx_update_peer_stats(tx_desc, ts, peer, ring_id); dp_tx_update_peer_ext_stats(peer, tx_desc, ts->tid, ring_id); #ifdef QCA_SUPPORT_RDK_STATS if (soc->rdkstats_enabled) dp_tx_sojourn_stats_process(vdev->pdev, peer, ts->tid, tx_desc->timestamp, ts->ppdu_id); #endif out: return; } #if defined(QCA_VDEV_STATS_HW_OFFLOAD_SUPPORT) && \ defined(QCA_ENHANCED_STATS_SUPPORT) /* * dp_tx_update_peer_basic_stats(): Update peer basic stats * @peer: Datapath peer handle * @length: Length of the packet * @tx_status: Tx status from TQM/FW * @update: enhanced flag value present in dp_pdev * * Return: none */ void dp_tx_update_peer_basic_stats(struct dp_peer *peer, uint32_t length, uint8_t tx_status, bool update) { if ((!peer->hw_txrx_stats_en) || update) { DP_STATS_INC_PKT(peer, tx.comp_pkt, 1, length); DP_STATS_INCC(peer, tx.tx_failed, 1, tx_status != HAL_TX_TQM_RR_FRAME_ACKED); } } #elif defined(QCA_VDEV_STATS_HW_OFFLOAD_SUPPORT) void dp_tx_update_peer_basic_stats(struct dp_peer *peer, uint32_t length, uint8_t tx_status, bool update) { if (!peer->hw_txrx_stats_en) { DP_STATS_INC_PKT(peer, tx.comp_pkt, 1, length); DP_STATS_INCC(peer, tx.tx_failed, 1, tx_status != HAL_TX_TQM_RR_FRAME_ACKED); } } #else void dp_tx_update_peer_basic_stats(struct dp_peer *peer, uint32_t length, uint8_t tx_status, bool update) { DP_STATS_INC_PKT(peer, tx.comp_pkt, 1, length); DP_STATS_INCC(peer, tx.tx_failed, 1, tx_status != HAL_TX_TQM_RR_FRAME_ACKED); } #endif /* * dp_tx_prefetch_next_nbuf_data(): Prefetch nbuf and nbuf data * @nbuf: skb buffer * * Return: none */ #ifdef QCA_DP_RX_NBUF_AND_NBUF_DATA_PREFETCH static inline void dp_tx_prefetch_next_nbuf_data(struct dp_tx_desc_s *next) { qdf_nbuf_t nbuf = NULL; if (next) nbuf = next->nbuf; if (nbuf) { /* prefetch skb->next and first few bytes of skb->cb */ qdf_prefetch(nbuf); /* prefetch skb fields present in different cachelines */ qdf_prefetch(&nbuf->len); qdf_prefetch(&nbuf->users); } } #else static inline void dp_tx_prefetch_next_nbuf_data(struct dp_tx_desc_s *next) { } #endif /** * dp_tx_comp_process_desc_list() - Tx complete software descriptor handler * @soc: core txrx main context * @comp_head: software descriptor head pointer * @ring_id: ring number * * This function will process batch of descriptors reaped by dp_tx_comp_handler * and release the software descriptors after processing is complete * * Return: none */ static void dp_tx_comp_process_desc_list(struct dp_soc *soc, struct dp_tx_desc_s *comp_head, uint8_t ring_id) { struct dp_tx_desc_s *desc; struct dp_tx_desc_s *next; struct hal_tx_completion_status ts; struct dp_txrx_peer *txrx_peer = NULL; uint16_t peer_id = DP_INVALID_PEER; qdf_nbuf_t netbuf; dp_txrx_ref_handle txrx_ref_handle; desc = comp_head; while (desc) { next = desc->next; dp_tx_prefetch_next_nbuf_data(next); if (peer_id != desc->peer_id) { if (txrx_peer) dp_txrx_peer_unref_delete(txrx_ref_handle, DP_MOD_ID_TX_COMP); peer_id = desc->peer_id; txrx_peer = dp_txrx_peer_get_ref_by_id(soc, peer_id, &txrx_ref_handle, DP_MOD_ID_TX_COMP); } if (qdf_likely(desc->flags & DP_TX_DESC_FLAG_SIMPLE)) { struct dp_pdev *pdev = desc->pdev; if (qdf_likely(peer)) dp_tx_update_peer_basic_stats(peer, desc->length, desc->tx_status, false); qdf_assert(pdev); dp_tx_outstanding_dec(pdev); /* * Calling a QDF WRAPPER here is creating signifcant * performance impact so avoided the wrapper call here */ dp_tx_desc_history_add(soc, desc->dma_addr, desc->nbuf, desc->id, DP_TX_COMP_UNMAP); dp_tx_nbuf_unmap(soc, desc); qdf_nbuf_free(desc->nbuf); dp_tx_desc_free(soc, desc, desc->pool_id); desc = next; continue; } hal_tx_comp_get_status(&desc->comp, &ts, soc->hal_soc); dp_tx_comp_process_tx_status(soc, desc, &ts, txrx_peer, ring_id); netbuf = desc->nbuf; /* check tx complete notification */ if (txrx_peer && qdf_nbuf_tx_notify_comp_get(netbuf)) dp_tx_notify_completion(soc, txrx_peer->vdev, desc, netbuf, ts.status); dp_tx_comp_process_desc(soc, desc, &ts, txrx_peer); dp_tx_desc_release(desc, desc->pool_id); desc = next; } if (txrx_peer) dp_txrx_peer_unref_delete(txrx_ref_handle, DP_MOD_ID_TX_COMP); } #ifdef WLAN_FEATURE_RX_SOFTIRQ_TIME_LIMIT static inline bool dp_tx_comp_loop_pkt_limit_hit(struct dp_soc *soc, int num_reaped, int max_reap_limit) { bool limit_hit = false; limit_hit = (num_reaped >= max_reap_limit) ? true : false; if (limit_hit) DP_STATS_INC(soc, tx.tx_comp_loop_pkt_limit_hit, 1); return limit_hit; } static inline bool dp_tx_comp_enable_eol_data_check(struct dp_soc *soc) { return soc->wlan_cfg_ctx->tx_comp_enable_eol_data_check; } static inline int dp_tx_comp_get_loop_pkt_limit(struct dp_soc *soc) { struct wlan_cfg_dp_soc_ctxt *cfg = soc->wlan_cfg_ctx; return cfg->tx_comp_loop_pkt_limit; } #else static inline bool dp_tx_comp_loop_pkt_limit_hit(struct dp_soc *soc, int num_reaped, int max_reap_limit) { return false; } static inline bool dp_tx_comp_enable_eol_data_check(struct dp_soc *soc) { return false; } static inline int dp_tx_comp_get_loop_pkt_limit(struct dp_soc *soc) { return 0; } #endif #ifdef WLAN_FEATURE_NEAR_FULL_IRQ static inline int dp_srng_test_and_update_nf_params(struct dp_soc *soc, struct dp_srng *dp_srng, int *max_reap_limit) { return soc->arch_ops.dp_srng_test_and_update_nf_params(soc, dp_srng, max_reap_limit); } #else static inline int dp_srng_test_and_update_nf_params(struct dp_soc *soc, struct dp_srng *dp_srng, int *max_reap_limit) { return 0; } #endif #ifdef DP_TX_TRACKING void dp_tx_desc_check_corruption(struct dp_tx_desc_s *tx_desc) { if ((tx_desc->magic != DP_TX_MAGIC_PATTERN_INUSE) && (tx_desc->magic != DP_TX_MAGIC_PATTERN_FREE)) { dp_err_rl("tx_desc %u is corrupted", tx_desc->id); qdf_trigger_self_recovery(NULL, QDF_TX_DESC_LEAK); } } #endif uint32_t dp_tx_comp_handler(struct dp_intr *int_ctx, struct dp_soc *soc, hal_ring_handle_t hal_ring_hdl, uint8_t ring_id, uint32_t quota) { void *tx_comp_hal_desc; void *last_prefetched_hw_desc = NULL; struct dp_tx_desc_s *last_prefetched_sw_desc = NULL; hal_soc_handle_t hal_soc; uint8_t buffer_src; struct dp_tx_desc_s *tx_desc = NULL; struct dp_tx_desc_s *head_desc = NULL; struct dp_tx_desc_s *tail_desc = NULL; uint32_t num_processed = 0; uint32_t count; uint32_t num_avail_for_reap = 0; bool force_break = false; struct dp_srng *tx_comp_ring = &soc->tx_comp_ring[ring_id]; int max_reap_limit, ring_near_full; DP_HIST_INIT(); more_data: hal_soc = soc->hal_soc; /* Re-initialize local variables to be re-used */ head_desc = NULL; tail_desc = NULL; count = 0; max_reap_limit = dp_tx_comp_get_loop_pkt_limit(soc); ring_near_full = dp_srng_test_and_update_nf_params(soc, tx_comp_ring, &max_reap_limit); if (qdf_unlikely(dp_srng_access_start(int_ctx, soc, hal_ring_hdl))) { dp_err("HAL RING Access Failed -- %pK", hal_ring_hdl); return 0; } num_avail_for_reap = hal_srng_dst_num_valid(hal_soc, hal_ring_hdl, 0); if (num_avail_for_reap >= quota) num_avail_for_reap = quota; dp_srng_dst_inv_cached_descs(soc, hal_ring_hdl, num_avail_for_reap); last_prefetched_hw_desc = dp_srng_dst_prefetch(hal_soc, hal_ring_hdl, num_avail_for_reap); /* Find head descriptor from completion ring */ while (qdf_likely(num_avail_for_reap--)) { tx_comp_hal_desc = dp_srng_dst_get_next(soc, hal_ring_hdl); if (qdf_unlikely(!tx_comp_hal_desc)) break; buffer_src = hal_tx_comp_get_buffer_source(hal_soc, tx_comp_hal_desc); /* If this buffer was not released by TQM or FW, then it is not * Tx completion indication, assert */ if (qdf_unlikely(buffer_src != HAL_TX_COMP_RELEASE_SOURCE_TQM) && (qdf_unlikely(buffer_src != HAL_TX_COMP_RELEASE_SOURCE_FW))) { uint8_t wbm_internal_error; dp_err_rl( "Tx comp release_src != TQM | FW but from %d", buffer_src); hal_dump_comp_desc(tx_comp_hal_desc); DP_STATS_INC(soc, tx.invalid_release_source, 1); /* When WBM sees NULL buffer_addr_info in any of * ingress rings it sends an error indication, * with wbm_internal_error=1, to a specific ring. * The WBM2SW ring used to indicate these errors is * fixed in HW, and that ring is being used as Tx * completion ring. These errors are not related to * Tx completions, and should just be ignored */ wbm_internal_error = hal_get_wbm_internal_error( hal_soc, tx_comp_hal_desc); if (wbm_internal_error) { dp_err_rl("Tx comp wbm_internal_error!!"); DP_STATS_INC(soc, tx.wbm_internal_error[WBM_INT_ERROR_ALL], 1); if (HAL_TX_COMP_RELEASE_SOURCE_REO == buffer_src) dp_handle_wbm_internal_error( soc, tx_comp_hal_desc, hal_tx_comp_get_buffer_type( tx_comp_hal_desc)); } else { dp_err_rl("Tx comp wbm_internal_error false"); DP_STATS_INC(soc, tx.non_wbm_internal_err, 1); } continue; } soc->arch_ops.tx_comp_get_params_from_hal_desc(soc, tx_comp_hal_desc, &tx_desc); if (!tx_desc) { dp_err("unable to retrieve tx_desc!"); QDF_BUG(0); continue; } tx_desc->buffer_src = buffer_src; /* * If the release source is FW, process the HTT status */ if (qdf_unlikely(buffer_src == HAL_TX_COMP_RELEASE_SOURCE_FW)) { uint8_t htt_tx_status[HAL_TX_COMP_HTT_STATUS_LEN]; hal_tx_comp_get_htt_desc(tx_comp_hal_desc, htt_tx_status); /* Collect hw completion contents */ hal_tx_comp_desc_sync(tx_comp_hal_desc, &tx_desc->comp, 1); soc->arch_ops.dp_tx_process_htt_completion( soc, tx_desc, htt_tx_status, ring_id); } else { tx_desc->tx_status = hal_tx_comp_get_tx_status(tx_comp_hal_desc); tx_desc->buffer_src = buffer_src; /* * If the fast completion mode is enabled extended * metadata from descriptor is not copied */ if (qdf_likely(tx_desc->flags & DP_TX_DESC_FLAG_SIMPLE)) goto add_to_pool; /* * If the descriptor is already freed in vdev_detach, * continue to next descriptor */ if (qdf_unlikely ((tx_desc->vdev_id == DP_INVALID_VDEV_ID) && !tx_desc->flags)) { dp_tx_comp_info_rl("Descriptor freed in vdev_detach %d", tx_desc->id); DP_STATS_INC(soc, tx.tx_comp_exception, 1); dp_tx_desc_check_corruption(tx_desc); continue; } if (qdf_unlikely(tx_desc->pdev->is_pdev_down)) { dp_tx_comp_info_rl("pdev in down state %d", tx_desc->id); tx_desc->flags |= DP_TX_DESC_FLAG_TX_COMP_ERR; dp_tx_comp_free_buf(soc, tx_desc); dp_tx_desc_release(tx_desc, tx_desc->pool_id); goto next_desc; } if (!(tx_desc->flags & DP_TX_DESC_FLAG_ALLOCATED) || !(tx_desc->flags & DP_TX_DESC_FLAG_QUEUED_TX)) { dp_tx_comp_alert("Txdesc invalid, flgs = %x,id = %d", tx_desc->flags, tx_desc->id); qdf_assert_always(0); } /* Collect hw completion contents */ hal_tx_comp_desc_sync(tx_comp_hal_desc, &tx_desc->comp, 1); add_to_pool: DP_HIST_PACKET_COUNT_INC(tx_desc->pdev->pdev_id); /* First ring descriptor on the cycle */ if (!head_desc) { head_desc = tx_desc; tail_desc = tx_desc; } tail_desc->next = tx_desc; tx_desc->next = NULL; tail_desc = tx_desc; } next_desc: num_processed += !(count & DP_TX_NAPI_BUDGET_DIV_MASK); /* * Processed packet count is more than given quota * stop to processing */ count++; dp_tx_prefetch_hw_sw_nbuf_desc(soc, hal_soc, num_avail_for_reap, hal_ring_hdl, &last_prefetched_hw_desc, &last_prefetched_sw_desc); if (dp_tx_comp_loop_pkt_limit_hit(soc, count, max_reap_limit)) break; } dp_srng_access_end(int_ctx, soc, hal_ring_hdl); /* Process the reaped descriptors */ if (head_desc) dp_tx_comp_process_desc_list(soc, head_desc, ring_id); /* * If we are processing in near-full condition, there are 3 scenario * 1) Ring entries has reached critical state * 2) Ring entries are still near high threshold * 3) Ring entries are below the safe level * * One more loop will move te state to normal processing and yield */ if (ring_near_full) goto more_data; if (dp_tx_comp_enable_eol_data_check(soc)) { if (num_processed >= quota) force_break = true; if (!force_break && hal_srng_dst_peek_sync_locked(soc->hal_soc, hal_ring_hdl)) { DP_STATS_INC(soc, tx.hp_oos2, 1); if (!hif_exec_should_yield(soc->hif_handle, int_ctx->dp_intr_id)) goto more_data; } } DP_TX_HIST_STATS_PER_PDEV(); return num_processed; } #ifdef FEATURE_WLAN_TDLS qdf_nbuf_t dp_tx_non_std(struct cdp_soc_t *soc_hdl, uint8_t vdev_id, enum ol_tx_spec tx_spec, qdf_nbuf_t msdu_list) { struct dp_soc *soc = cdp_soc_t_to_dp_soc(soc_hdl); struct dp_vdev *vdev = dp_vdev_get_ref_by_id(soc, vdev_id, DP_MOD_ID_TDLS); if (!vdev) { dp_err("vdev handle for id %d is NULL", vdev_id); return NULL; } if (tx_spec & OL_TX_SPEC_NO_FREE) vdev->is_tdls_frame = true; dp_vdev_unref_delete(soc, vdev, DP_MOD_ID_TDLS); return dp_tx_send(soc_hdl, vdev_id, msdu_list); } #endif /** * dp_tx_vdev_attach() - attach vdev to dp tx * @vdev: virtual device instance * * Return: QDF_STATUS_SUCCESS: success * QDF_STATUS_E_RESOURCES: Error return */ QDF_STATUS dp_tx_vdev_attach(struct dp_vdev *vdev) { int pdev_id; /* * Fill HTT TCL Metadata with Vdev ID and MAC ID */ DP_TX_TCL_METADATA_TYPE_SET(vdev->htt_tcl_metadata, DP_TCL_METADATA_TYPE_VDEV_BASED); DP_TX_TCL_METADATA_VDEV_ID_SET(vdev->htt_tcl_metadata, vdev->vdev_id); pdev_id = dp_get_target_pdev_id_for_host_pdev_id(vdev->pdev->soc, vdev->pdev->pdev_id); DP_TX_TCL_METADATA_PDEV_ID_SET(vdev->htt_tcl_metadata, pdev_id); /* * Set HTT Extension Valid bit to 0 by default */ DP_TX_TCL_METADATA_VALID_HTT_SET(vdev->htt_tcl_metadata, 0); dp_tx_vdev_update_search_flags(vdev); return QDF_STATUS_SUCCESS; } #ifndef FEATURE_WDS static inline bool dp_tx_da_search_override(struct dp_vdev *vdev) { return false; } #endif /** * dp_tx_vdev_update_search_flags() - Update vdev flags as per opmode * @vdev: virtual device instance * * Return: void * */ void dp_tx_vdev_update_search_flags(struct dp_vdev *vdev) { struct dp_soc *soc = vdev->pdev->soc; /* * Enable both AddrY (SA based search) and AddrX (Da based search) * for TDLS link * * Enable AddrY (SA based search) only for non-WDS STA and * ProxySTA VAP (in HKv1) modes. * * In all other VAP modes, only DA based search should be * enabled */ if (vdev->opmode == wlan_op_mode_sta && vdev->tdls_link_connected) vdev->hal_desc_addr_search_flags = (HAL_TX_DESC_ADDRX_EN | HAL_TX_DESC_ADDRY_EN); else if ((vdev->opmode == wlan_op_mode_sta) && !dp_tx_da_search_override(vdev)) vdev->hal_desc_addr_search_flags = HAL_TX_DESC_ADDRY_EN; else vdev->hal_desc_addr_search_flags = HAL_TX_DESC_ADDRX_EN; if (vdev->opmode == wlan_op_mode_sta) vdev->search_type = soc->sta_mode_search_policy; else vdev->search_type = HAL_TX_ADDR_SEARCH_DEFAULT; } static inline bool dp_is_tx_desc_flush_match(struct dp_pdev *pdev, struct dp_vdev *vdev, struct dp_tx_desc_s *tx_desc) { if (!(tx_desc && (tx_desc->flags & DP_TX_DESC_FLAG_ALLOCATED))) return false; /* * if vdev is given, then only check whether desc * vdev match. if vdev is NULL, then check whether * desc pdev match. */ return vdev ? (tx_desc->vdev_id == vdev->vdev_id) : (tx_desc->pdev == pdev); } #ifdef QCA_LL_TX_FLOW_CONTROL_V2 /** * dp_tx_desc_flush() - release resources associated * to TX Desc * * @dp_pdev: Handle to DP pdev structure * @vdev: virtual device instance * NULL: no specific Vdev is required and check all allcated TX desc * on this pdev. * Non-NULL: only check the allocated TX Desc associated to this Vdev. * * @force_free: * true: flush the TX desc. * false: only reset the Vdev in each allocated TX desc * that associated to current Vdev. * * This function will go through the TX desc pool to flush * the outstanding TX data or reset Vdev to NULL in associated TX * Desc. */ void dp_tx_desc_flush(struct dp_pdev *pdev, struct dp_vdev *vdev, bool force_free) { uint8_t i; uint32_t j; uint32_t num_desc, page_id, offset; uint16_t num_desc_per_page; struct dp_soc *soc = pdev->soc; struct dp_tx_desc_s *tx_desc = NULL; struct dp_tx_desc_pool_s *tx_desc_pool = NULL; if (!vdev && !force_free) { dp_err("Reset TX desc vdev, Vdev param is required!"); return; } for (i = 0; i < MAX_TXDESC_POOLS; i++) { tx_desc_pool = &soc->tx_desc[i]; if (!(tx_desc_pool->pool_size) || IS_TX_DESC_POOL_STATUS_INACTIVE(tx_desc_pool) || !(tx_desc_pool->desc_pages.cacheable_pages)) continue; /* * Add flow pool lock protection in case pool is freed * due to all tx_desc is recycled when handle TX completion. * this is not necessary when do force flush as: * a. double lock will happen if dp_tx_desc_release is * also trying to acquire it. * b. dp interrupt has been disabled before do force TX desc * flush in dp_pdev_deinit(). */ if (!force_free) qdf_spin_lock_bh(&tx_desc_pool->flow_pool_lock); num_desc = tx_desc_pool->pool_size; num_desc_per_page = tx_desc_pool->desc_pages.num_element_per_page; for (j = 0; j < num_desc; j++) { page_id = j / num_desc_per_page; offset = j % num_desc_per_page; if (qdf_unlikely(!(tx_desc_pool-> desc_pages.cacheable_pages))) break; tx_desc = dp_tx_desc_find(soc, i, page_id, offset); if (dp_is_tx_desc_flush_match(pdev, vdev, tx_desc)) { /* * Free TX desc if force free is * required, otherwise only reset vdev * in this TX desc. */ if (force_free) { tx_desc->flags |= DP_TX_DESC_FLAG_FLUSH; dp_tx_comp_free_buf(soc, tx_desc); dp_tx_desc_release(tx_desc, i); } else { tx_desc->vdev_id = DP_INVALID_VDEV_ID; } } } if (!force_free) qdf_spin_unlock_bh(&tx_desc_pool->flow_pool_lock); } } #else /* QCA_LL_TX_FLOW_CONTROL_V2! */ /** * dp_tx_desc_reset_vdev() - reset vdev to NULL in TX Desc * * @soc: Handle to DP soc structure * @tx_desc: pointer of one TX desc * @desc_pool_id: TX Desc pool id */ static inline void dp_tx_desc_reset_vdev(struct dp_soc *soc, struct dp_tx_desc_s *tx_desc, uint8_t desc_pool_id) { TX_DESC_LOCK_LOCK(&soc->tx_desc[desc_pool_id].lock); tx_desc->vdev_id = DP_INVALID_VDEV_ID; TX_DESC_LOCK_UNLOCK(&soc->tx_desc[desc_pool_id].lock); } void dp_tx_desc_flush(struct dp_pdev *pdev, struct dp_vdev *vdev, bool force_free) { uint8_t i, num_pool; uint32_t j; uint32_t num_desc, page_id, offset; uint16_t num_desc_per_page; struct dp_soc *soc = pdev->soc; struct dp_tx_desc_s *tx_desc = NULL; struct dp_tx_desc_pool_s *tx_desc_pool = NULL; if (!vdev && !force_free) { dp_err("Reset TX desc vdev, Vdev param is required!"); return; } num_desc = wlan_cfg_get_num_tx_desc(soc->wlan_cfg_ctx); num_pool = wlan_cfg_get_num_tx_desc_pool(soc->wlan_cfg_ctx); for (i = 0; i < num_pool; i++) { tx_desc_pool = &soc->tx_desc[i]; if (!tx_desc_pool->desc_pages.cacheable_pages) continue; num_desc_per_page = tx_desc_pool->desc_pages.num_element_per_page; for (j = 0; j < num_desc; j++) { page_id = j / num_desc_per_page; offset = j % num_desc_per_page; tx_desc = dp_tx_desc_find(soc, i, page_id, offset); if (dp_is_tx_desc_flush_match(pdev, vdev, tx_desc)) { if (force_free) { tx_desc->flags |= DP_TX_DESC_FLAG_FLUSH; dp_tx_comp_free_buf(soc, tx_desc); dp_tx_desc_release(tx_desc, i); } else { dp_tx_desc_reset_vdev(soc, tx_desc, i); } } } } } #endif /* !QCA_LL_TX_FLOW_CONTROL_V2 */ /** * dp_tx_vdev_detach() - detach vdev from dp tx * @vdev: virtual device instance * * Return: QDF_STATUS_SUCCESS: success * QDF_STATUS_E_RESOURCES: Error return */ QDF_STATUS dp_tx_vdev_detach(struct dp_vdev *vdev) { struct dp_pdev *pdev = vdev->pdev; /* Reset TX desc associated to this Vdev as NULL */ dp_tx_desc_flush(pdev, vdev, false); return QDF_STATUS_SUCCESS; } #ifdef QCA_LL_TX_FLOW_CONTROL_V2 /* Pools will be allocated dynamically */ static QDF_STATUS dp_tx_alloc_static_pools(struct dp_soc *soc, int num_pool, int num_desc) { uint8_t i; for (i = 0; i < num_pool; i++) { qdf_spinlock_create(&soc->tx_desc[i].flow_pool_lock); soc->tx_desc[i].status = FLOW_POOL_INACTIVE; } return QDF_STATUS_SUCCESS; } static QDF_STATUS dp_tx_init_static_pools(struct dp_soc *soc, int num_pool, int num_desc) { return QDF_STATUS_SUCCESS; } static void dp_tx_deinit_static_pools(struct dp_soc *soc, int num_pool) { } static void dp_tx_delete_static_pools(struct dp_soc *soc, int num_pool) { uint8_t i; for (i = 0; i < num_pool; i++) qdf_spinlock_destroy(&soc->tx_desc[i].flow_pool_lock); } #else /* QCA_LL_TX_FLOW_CONTROL_V2! */ static QDF_STATUS dp_tx_alloc_static_pools(struct dp_soc *soc, int num_pool, int num_desc) { uint8_t i, count; /* Allocate software Tx descriptor pools */ for (i = 0; i < num_pool; i++) { if (dp_tx_desc_pool_alloc(soc, i, num_desc)) { QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_ERROR, FL("Tx Desc Pool alloc %d failed %pK"), i, soc); goto fail; } } return QDF_STATUS_SUCCESS; fail: for (count = 0; count < i; count++) dp_tx_desc_pool_free(soc, count); return QDF_STATUS_E_NOMEM; } static QDF_STATUS dp_tx_init_static_pools(struct dp_soc *soc, int num_pool, int num_desc) { uint8_t i; for (i = 0; i < num_pool; i++) { if (dp_tx_desc_pool_init(soc, i, num_desc)) { QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_ERROR, FL("Tx Desc Pool init %d failed %pK"), i, soc); return QDF_STATUS_E_NOMEM; } } return QDF_STATUS_SUCCESS; } static void dp_tx_deinit_static_pools(struct dp_soc *soc, int num_pool) { uint8_t i; for (i = 0; i < num_pool; i++) dp_tx_desc_pool_deinit(soc, i); } static void dp_tx_delete_static_pools(struct dp_soc *soc, int num_pool) { uint8_t i; for (i = 0; i < num_pool; i++) dp_tx_desc_pool_free(soc, i); } #endif /* !QCA_LL_TX_FLOW_CONTROL_V2 */ /** * dp_tx_tso_cmn_desc_pool_deinit() - de-initialize TSO descriptors * @soc: core txrx main context * @num_pool: number of pools * */ void dp_tx_tso_cmn_desc_pool_deinit(struct dp_soc *soc, uint8_t num_pool) { dp_tx_tso_desc_pool_deinit(soc, num_pool); dp_tx_tso_num_seg_pool_deinit(soc, num_pool); } /** * dp_tx_tso_cmn_desc_pool_free() - free TSO descriptors * @soc: core txrx main context * @num_pool: number of pools * */ void dp_tx_tso_cmn_desc_pool_free(struct dp_soc *soc, uint8_t num_pool) { dp_tx_tso_desc_pool_free(soc, num_pool); dp_tx_tso_num_seg_pool_free(soc, num_pool); } /** * dp_soc_tx_desc_sw_pools_free() - free all TX descriptors * @soc: core txrx main context * * This function frees all tx related descriptors as below * 1. Regular TX descriptors (static pools) * 2. extension TX descriptors (used for ME, RAW, TSO etc...) * 3. TSO descriptors * */ void dp_soc_tx_desc_sw_pools_free(struct dp_soc *soc) { uint8_t num_pool; num_pool = wlan_cfg_get_num_tx_desc_pool(soc->wlan_cfg_ctx); dp_tx_tso_cmn_desc_pool_free(soc, num_pool); dp_tx_ext_desc_pool_free(soc, num_pool); dp_tx_delete_static_pools(soc, num_pool); } /** * dp_soc_tx_desc_sw_pools_deinit() - de-initialize all TX descriptors * @soc: core txrx main context * * This function de-initializes all tx related descriptors as below * 1. Regular TX descriptors (static pools) * 2. extension TX descriptors (used for ME, RAW, TSO etc...) * 3. TSO descriptors * */ void dp_soc_tx_desc_sw_pools_deinit(struct dp_soc *soc) { uint8_t num_pool; num_pool = wlan_cfg_get_num_tx_desc_pool(soc->wlan_cfg_ctx); dp_tx_flow_control_deinit(soc); dp_tx_tso_cmn_desc_pool_deinit(soc, num_pool); dp_tx_ext_desc_pool_deinit(soc, num_pool); dp_tx_deinit_static_pools(soc, num_pool); } /** * dp_tso_attach() - TSO attach handler * @txrx_soc: Opaque Dp handle * * Reserve TSO descriptor buffers * * Return: QDF_STATUS_E_FAILURE on failure or * QDF_STATUS_SUCCESS on success */ QDF_STATUS dp_tx_tso_cmn_desc_pool_alloc(struct dp_soc *soc, uint8_t num_pool, uint16_t num_desc) { if (dp_tx_tso_desc_pool_alloc(soc, num_pool, num_desc)) { dp_err("TSO Desc Pool alloc %d failed %pK", num_pool, soc); return QDF_STATUS_E_FAILURE; } if (dp_tx_tso_num_seg_pool_alloc(soc, num_pool, num_desc)) { dp_err("TSO Num of seg Pool alloc %d failed %pK", num_pool, soc); return QDF_STATUS_E_FAILURE; } return QDF_STATUS_SUCCESS; } /** * dp_tx_tso_cmn_desc_pool_init() - TSO cmn desc pool init * @soc: DP soc handle * @num_pool: Number of pools * @num_desc: Number of descriptors * * Initialize TSO descriptor pools * * Return: QDF_STATUS_E_FAILURE on failure or * QDF_STATUS_SUCCESS on success */ QDF_STATUS dp_tx_tso_cmn_desc_pool_init(struct dp_soc *soc, uint8_t num_pool, uint16_t num_desc) { if (dp_tx_tso_desc_pool_init(soc, num_pool, num_desc)) { dp_err("TSO Desc Pool alloc %d failed %pK", num_pool, soc); return QDF_STATUS_E_FAILURE; } if (dp_tx_tso_num_seg_pool_init(soc, num_pool, num_desc)) { dp_err("TSO Num of seg Pool alloc %d failed %pK", num_pool, soc); return QDF_STATUS_E_FAILURE; } return QDF_STATUS_SUCCESS; } /** * dp_soc_tx_desc_sw_pools_alloc() - Allocate tx descriptor pool memory * @soc: core txrx main context * * This function allocates memory for following descriptor pools * 1. regular sw tx descriptor pools (static pools) * 2. TX extension descriptor pools (ME, RAW, TSO etc...) * 3. TSO descriptor pools * * Return: QDF_STATUS_SUCCESS: success * QDF_STATUS_E_RESOURCES: Error return */ QDF_STATUS dp_soc_tx_desc_sw_pools_alloc(struct dp_soc *soc) { uint8_t num_pool; uint32_t num_desc; uint32_t num_ext_desc; num_pool = wlan_cfg_get_num_tx_desc_pool(soc->wlan_cfg_ctx); num_desc = wlan_cfg_get_num_tx_desc(soc->wlan_cfg_ctx); num_ext_desc = wlan_cfg_get_num_tx_ext_desc(soc->wlan_cfg_ctx); QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_INFO, "%s Tx Desc Alloc num_pool = %d, descs = %d", __func__, num_pool, num_desc); if ((num_pool > MAX_TXDESC_POOLS) || (num_desc > WLAN_CFG_NUM_TX_DESC_MAX)) goto fail1; if (dp_tx_alloc_static_pools(soc, num_pool, num_desc)) goto fail1; if (dp_tx_ext_desc_pool_alloc(soc, num_pool, num_ext_desc)) goto fail2; if (wlan_cfg_is_tso_desc_attach_defer(soc->wlan_cfg_ctx)) return QDF_STATUS_SUCCESS; if (dp_tx_tso_cmn_desc_pool_alloc(soc, num_pool, num_ext_desc)) goto fail3; return QDF_STATUS_SUCCESS; fail3: dp_tx_ext_desc_pool_free(soc, num_pool); fail2: dp_tx_delete_static_pools(soc, num_pool); fail1: return QDF_STATUS_E_RESOURCES; } /** * dp_soc_tx_desc_sw_pools_init() - Initialise TX descriptor pools * @soc: core txrx main context * * This function initializes the following TX descriptor pools * 1. regular sw tx descriptor pools (static pools) * 2. TX extension descriptor pools (ME, RAW, TSO etc...) * 3. TSO descriptor pools * * Return: QDF_STATUS_SUCCESS: success * QDF_STATUS_E_RESOURCES: Error return */ QDF_STATUS dp_soc_tx_desc_sw_pools_init(struct dp_soc *soc) { uint8_t num_pool; uint32_t num_desc; uint32_t num_ext_desc; num_pool = wlan_cfg_get_num_tx_desc_pool(soc->wlan_cfg_ctx); num_desc = wlan_cfg_get_num_tx_desc(soc->wlan_cfg_ctx); num_ext_desc = wlan_cfg_get_num_tx_ext_desc(soc->wlan_cfg_ctx); if (dp_tx_init_static_pools(soc, num_pool, num_desc)) goto fail1; if (dp_tx_ext_desc_pool_init(soc, num_pool, num_ext_desc)) goto fail2; if (wlan_cfg_is_tso_desc_attach_defer(soc->wlan_cfg_ctx)) return QDF_STATUS_SUCCESS; if (dp_tx_tso_cmn_desc_pool_init(soc, num_pool, num_ext_desc)) goto fail3; dp_tx_flow_control_init(soc); soc->process_tx_status = CONFIG_PROCESS_TX_STATUS; return QDF_STATUS_SUCCESS; fail3: dp_tx_ext_desc_pool_deinit(soc, num_pool); fail2: dp_tx_deinit_static_pools(soc, num_pool); fail1: return QDF_STATUS_E_RESOURCES; } /** * dp_tso_soc_attach() - Allocate and initialize TSO descriptors * @txrx_soc: dp soc handle * * Return: QDF_STATUS - QDF_STATUS_SUCCESS * QDF_STATUS_E_FAILURE */ QDF_STATUS dp_tso_soc_attach(struct cdp_soc_t *txrx_soc) { struct dp_soc *soc = (struct dp_soc *)txrx_soc; uint8_t num_pool; uint32_t num_desc; uint32_t num_ext_desc; num_pool = wlan_cfg_get_num_tx_desc_pool(soc->wlan_cfg_ctx); num_desc = wlan_cfg_get_num_tx_desc(soc->wlan_cfg_ctx); num_ext_desc = wlan_cfg_get_num_tx_ext_desc(soc->wlan_cfg_ctx); if (dp_tx_tso_cmn_desc_pool_alloc(soc, num_pool, num_ext_desc)) return QDF_STATUS_E_FAILURE; if (dp_tx_tso_cmn_desc_pool_init(soc, num_pool, num_ext_desc)) return QDF_STATUS_E_FAILURE; return QDF_STATUS_SUCCESS; } /** * dp_tso_soc_detach() - de-initialize and free the TSO descriptors * @txrx_soc: dp soc handle * * Return: QDF_STATUS - QDF_STATUS_SUCCESS */ QDF_STATUS dp_tso_soc_detach(struct cdp_soc_t *txrx_soc) { struct dp_soc *soc = (struct dp_soc *)txrx_soc; uint8_t num_pool = wlan_cfg_get_num_tx_desc_pool(soc->wlan_cfg_ctx); dp_tx_tso_cmn_desc_pool_deinit(soc, num_pool); dp_tx_tso_cmn_desc_pool_free(soc, num_pool); return QDF_STATUS_SUCCESS; }