/* * Copyright (c) 2016-2021 The Linux Foundation. All rights reserved. * Copyright (c) 2021-2024 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 "cdp_txrx_cmn_struct.h" #include "hal_hw_headers.h" #include "dp_types.h" #include "dp_rx.h" #include "dp_tx.h" #include "dp_be_rx.h" #include "dp_peer.h" #include "hal_rx.h" #include "hal_be_rx.h" #include "hal_api.h" #include "hal_be_api.h" #include "qdf_nbuf.h" #ifdef MESH_MODE_SUPPORT #include "if_meta_hdr.h" #endif #include "dp_internal.h" #include "dp_ipa.h" #ifdef FEATURE_WDS #include "dp_txrx_wds.h" #endif #include "dp_hist.h" #include "dp_rx_buffer_pool.h" #ifdef WLAN_SUPPORT_RX_FLOW_TAG static inline void dp_rx_update_flow_info(qdf_nbuf_t nbuf, uint8_t *rx_tlv_hdr) { uint32_t fse_metadata; /* Set the flow idx valid flag only when there is no timeout */ if (hal_rx_msdu_flow_idx_timeout_be(rx_tlv_hdr)) return; /* * If invalid bit is not set and the fse metadata indicates that it is * a valid SFE flow match in FSE, do not set the rx flow tag and let it * go via stack instead of VP. */ fse_metadata = hal_rx_msdu_fse_metadata_get_be(rx_tlv_hdr); if (!hal_rx_msdu_flow_idx_invalid_be(rx_tlv_hdr) && (fse_metadata == DP_RX_FSE_FLOW_MATCH_SFE)) return; qdf_nbuf_set_rx_flow_idx_valid(nbuf, !hal_rx_msdu_flow_idx_invalid_be(rx_tlv_hdr)); } #else static inline void dp_rx_update_flow_info(qdf_nbuf_t nbuf, uint8_t *rx_tlv_hdr) { } #endif #ifdef DP_RX_MSDU_DONE_FAIL_HISTORY static inline void dp_rx_msdu_done_fail_event_record(struct dp_soc *soc, struct dp_rx_desc *rx_desc, qdf_nbuf_t nbuf) { struct dp_msdu_done_fail_entry *entry; uint32_t idx; if (qdf_unlikely(!soc->msdu_done_fail_hist)) return; idx = dp_history_get_next_index(&soc->msdu_done_fail_hist->index, DP_MSDU_DONE_FAIL_HIST_MAX); entry = &soc->msdu_done_fail_hist->entry[idx]; entry->paddr = qdf_nbuf_get_frag_paddr(nbuf, 0); if (rx_desc) entry->sw_cookie = rx_desc->cookie; else entry->sw_cookie = 0xDEAD; } #else static inline void dp_rx_msdu_done_fail_event_record(struct dp_soc *soc, struct dp_rx_desc *rx_desc, qdf_nbuf_t nbuf) { } #endif #ifndef AST_OFFLOAD_ENABLE static void dp_rx_wds_learn(struct dp_soc *soc, struct dp_vdev *vdev, uint8_t *rx_tlv_hdr, struct dp_txrx_peer *txrx_peer, qdf_nbuf_t nbuf) { struct hal_rx_msdu_metadata msdu_metadata; hal_rx_msdu_packet_metadata_get_generic_be(rx_tlv_hdr, &msdu_metadata); /* WDS Source Port Learning */ if (qdf_likely(vdev->wds_enabled)) dp_rx_wds_srcport_learn(soc, rx_tlv_hdr, txrx_peer, nbuf, msdu_metadata); } #else #ifdef QCA_SUPPORT_WDS_EXTENDED /** * dp_wds_ext_peer_learn_be() - function to send event to control * path on receiving 1st 4-address frame from backhaul. * @soc: DP soc * @ta_txrx_peer: WDS repeater txrx peer * @rx_tlv_hdr: start address of rx tlvs * @nbuf: RX packet buffer * * Return: void */ static inline void dp_wds_ext_peer_learn_be(struct dp_soc *soc, struct dp_txrx_peer *ta_txrx_peer, uint8_t *rx_tlv_hdr, qdf_nbuf_t nbuf) { uint8_t wds_ext_src_mac[QDF_MAC_ADDR_SIZE]; struct dp_peer *ta_base_peer; /* instead of checking addr4 is valid or not in per packet path * check for init bit, which will be set on reception of * first addr4 valid packet. */ if (!ta_txrx_peer->vdev->wds_ext_enabled || qdf_atomic_test_bit(WDS_EXT_PEER_INIT_BIT, &ta_txrx_peer->wds_ext.init)) return; if (qdf_nbuf_is_rx_chfrag_start(nbuf) && (qdf_nbuf_is_fr_ds_set(nbuf) && qdf_nbuf_is_to_ds_set(nbuf))) { qdf_atomic_test_and_set_bit(WDS_EXT_PEER_INIT_BIT, &ta_txrx_peer->wds_ext.init); if (qdf_unlikely(ta_txrx_peer->nawds_enabled && ta_txrx_peer->is_mld_peer)) { ta_base_peer = dp_get_primary_link_peer_by_id( soc, ta_txrx_peer->peer_id, DP_MOD_ID_RX); } else { ta_base_peer = dp_peer_get_ref_by_id( soc, ta_txrx_peer->peer_id, DP_MOD_ID_RX); } if (!ta_base_peer) return; qdf_mem_copy(wds_ext_src_mac, &ta_base_peer->mac_addr.raw[0], QDF_MAC_ADDR_SIZE); dp_peer_unref_delete(ta_base_peer, DP_MOD_ID_RX); soc->cdp_soc.ol_ops->rx_wds_ext_peer_learn( soc->ctrl_psoc, ta_txrx_peer->peer_id, ta_txrx_peer->vdev->vdev_id, wds_ext_src_mac); } } #else static inline void dp_wds_ext_peer_learn_be(struct dp_soc *soc, struct dp_txrx_peer *ta_txrx_peer, uint8_t *rx_tlv_hdr, qdf_nbuf_t nbuf) { } #endif static void dp_rx_wds_learn(struct dp_soc *soc, struct dp_vdev *vdev, uint8_t *rx_tlv_hdr, struct dp_txrx_peer *ta_txrx_peer, qdf_nbuf_t nbuf) { dp_wds_ext_peer_learn_be(soc, ta_txrx_peer, rx_tlv_hdr, nbuf); } #endif #ifdef DP_RX_PEEK_MSDU_DONE_WAR static inline int dp_rx_war_peek_msdu_done(struct dp_soc *soc, struct dp_rx_desc *rx_desc) { uint8_t *rx_tlv_hdr; qdf_nbuf_sync_for_cpu(soc->osdev, rx_desc->nbuf, QDF_DMA_FROM_DEVICE); rx_tlv_hdr = qdf_nbuf_data(rx_desc->nbuf); return hal_rx_tlv_msdu_done_get_be(rx_tlv_hdr); } /** * dp_rx_delink_n_rel_rx_desc() - unmap & free the nbuf in the rx_desc * @soc: DP SoC handle * @rx_desc: rx_desc handle of the nbuf to be unmapped & freed * @reo_ring_num: REO_RING_NUM corresponding to the REO for which the * bottom half is being serviced. * * Return: None */ static inline void dp_rx_delink_n_rel_rx_desc(struct dp_soc *soc, struct dp_rx_desc *rx_desc, uint8_t reo_ring_num) { if (!rx_desc) return; dp_rx_nbuf_unmap(soc, rx_desc, reo_ring_num); dp_rx_nbuf_free(rx_desc->nbuf); /* * RX_DESC flags: * in_use = 0 will be set when this rx_desc is added to local freelist * unmapped = 1 will be set by dp_rx_nbuf_unmap * in_err_state = 0 will be set during replenish * has_reuse_nbuf need not be touched. * msdu_done_fail = 0 should be set here ..!! */ rx_desc->msdu_done_fail = 0; } static inline struct dp_rx_desc * dp_rx_war_store_msdu_done_fail_desc(struct dp_soc *soc, struct dp_rx_desc *rx_desc, uint8_t reo_ring_num) { struct dp_rx_msdu_done_fail_desc_list *msdu_done_fail_desc_list = &soc->msdu_done_fail_desc_list; struct dp_rx_desc *old_rx_desc; uint32_t idx; idx = dp_get_next_index(&msdu_done_fail_desc_list->index, DP_MSDU_DONE_FAIL_DESCS_MAX); old_rx_desc = msdu_done_fail_desc_list->msdu_done_fail_descs[idx]; dp_rx_delink_n_rel_rx_desc(soc, old_rx_desc, reo_ring_num); msdu_done_fail_desc_list->msdu_done_fail_descs[idx] = rx_desc; return old_rx_desc; } #else static inline int dp_rx_war_peek_msdu_done(struct dp_soc *soc, struct dp_rx_desc *rx_desc) { return 1; } static inline struct dp_rx_desc * dp_rx_war_store_msdu_done_fail_desc(struct dp_soc *soc, struct dp_rx_desc *rx_desc, uint8_t reo_ring_num) { return NULL; } #endif uint32_t dp_rx_process_be(struct dp_intr *int_ctx, hal_ring_handle_t hal_ring_hdl, uint8_t reo_ring_num, uint32_t quota) { hal_ring_desc_t ring_desc; hal_ring_desc_t last_prefetched_hw_desc; hal_soc_handle_t hal_soc; struct dp_rx_desc *rx_desc = NULL; struct dp_rx_desc *last_prefetched_sw_desc = NULL; qdf_nbuf_t nbuf, next; bool near_full; union dp_rx_desc_list_elem_t *head[WLAN_MAX_MLO_CHIPS][MAX_PDEV_CNT]; union dp_rx_desc_list_elem_t *tail[WLAN_MAX_MLO_CHIPS][MAX_PDEV_CNT]; uint32_t num_pending = 0; uint32_t rx_bufs_used = 0, rx_buf_cookie; uint16_t msdu_len = 0; uint16_t peer_id; uint8_t vdev_id; struct dp_txrx_peer *txrx_peer; dp_txrx_ref_handle txrx_ref_handle = NULL; struct dp_vdev *vdev; uint32_t pkt_len = 0; enum hal_reo_error_status error; uint8_t *rx_tlv_hdr; uint32_t rx_bufs_reaped[WLAN_MAX_MLO_CHIPS][MAX_PDEV_CNT]; uint8_t mac_id = 0; struct dp_pdev *rx_pdev; uint8_t enh_flag; struct dp_srng *dp_rxdma_srng; struct rx_desc_pool *rx_desc_pool; struct dp_soc *soc = int_ctx->soc; struct cdp_tid_rx_stats *tid_stats; qdf_nbuf_t nbuf_head; qdf_nbuf_t nbuf_tail; qdf_nbuf_t deliver_list_head; qdf_nbuf_t deliver_list_tail; uint32_t num_rx_bufs_reaped = 0; uint32_t intr_id; struct hif_opaque_softc *scn; int32_t tid = 0; bool is_prev_msdu_last = true; uint32_t num_entries_avail = 0; uint32_t rx_ol_pkt_cnt = 0; uint32_t num_entries = 0; QDF_STATUS status; qdf_nbuf_t ebuf_head; qdf_nbuf_t ebuf_tail; uint8_t pkt_capture_offload = 0; struct dp_srng *rx_ring = &soc->reo_dest_ring[reo_ring_num]; int max_reap_limit, ring_near_full; struct dp_soc *replenish_soc; uint8_t chip_id; uint64_t current_time = 0; uint32_t old_tid; uint32_t peer_ext_stats; uint32_t dsf; uint32_t l3_pad; uint8_t link_id = 0; uint16_t buf_size; DP_HIST_INIT(); qdf_assert_always(soc && hal_ring_hdl); hal_soc = soc->hal_soc; qdf_assert_always(hal_soc); scn = soc->hif_handle; intr_id = int_ctx->dp_intr_id; num_entries = hal_srng_get_num_entries(hal_soc, hal_ring_hdl); dp_runtime_pm_mark_last_busy(soc); buf_size = wlan_cfg_rx_buffer_size(soc->wlan_cfg_ctx); more_data: /* reset local variables here to be re-used in the function */ nbuf_head = NULL; nbuf_tail = NULL; deliver_list_head = NULL; deliver_list_tail = NULL; txrx_peer = NULL; vdev = NULL; num_rx_bufs_reaped = 0; ebuf_head = NULL; ebuf_tail = NULL; ring_near_full = 0; max_reap_limit = dp_rx_get_loop_pkt_limit(soc); qdf_mem_zero(rx_bufs_reaped, sizeof(rx_bufs_reaped)); qdf_mem_zero(head, sizeof(head)); qdf_mem_zero(tail, sizeof(tail)); old_tid = 0xff; dsf = 0; peer_ext_stats = 0; rx_pdev = NULL; tid_stats = NULL; dp_pkt_get_timestamp(¤t_time); ring_near_full = _dp_srng_test_and_update_nf_params(soc, rx_ring, &max_reap_limit); peer_ext_stats = wlan_cfg_is_peer_ext_stats_enabled(soc->wlan_cfg_ctx); if (qdf_unlikely(dp_rx_srng_access_start(int_ctx, soc, hal_ring_hdl))) { /* * Need API to convert from hal_ring pointer to * Ring Type / Ring Id combo */ DP_STATS_INC(soc, rx.err.hal_ring_access_fail, 1); QDF_TRACE(QDF_MODULE_ID_TXRX, QDF_TRACE_LEVEL_ERROR, FL("HAL RING Access Failed -- %pK"), hal_ring_hdl); goto done; } hal_srng_update_ring_usage_wm_no_lock(soc->hal_soc, hal_ring_hdl); if (!num_pending) num_pending = hal_srng_dst_num_valid(hal_soc, hal_ring_hdl, 0); if (num_pending > quota) num_pending = quota; dp_srng_dst_inv_cached_descs(soc, hal_ring_hdl, num_pending); last_prefetched_hw_desc = dp_srng_dst_prefetch_32_byte_desc(hal_soc, hal_ring_hdl, num_pending); /* * start reaping the buffers from reo ring and queue * them in per vdev queue. * Process the received pkts in a different per vdev loop. */ while (qdf_likely(num_pending)) { ring_desc = dp_srng_dst_get_next(soc, hal_ring_hdl); if (qdf_unlikely(!ring_desc)) break; error = HAL_RX_ERROR_STATUS_GET(ring_desc); if (qdf_unlikely(error == HAL_REO_ERROR_DETECTED)) { dp_rx_err("%pK: HAL RING 0x%pK:error %d", soc, hal_ring_hdl, error); DP_STATS_INC(soc, rx.err.hal_reo_error[reo_ring_num], 1); /* Don't know how to deal with this -- assert */ qdf_assert(0); } dp_rx_ring_record_entry(soc, reo_ring_num, ring_desc); rx_buf_cookie = HAL_RX_REO_BUF_COOKIE_GET(ring_desc); status = dp_rx_cookie_check_and_invalidate(ring_desc); if (qdf_unlikely(QDF_IS_STATUS_ERROR(status))) { DP_STATS_INC(soc, rx.err.stale_cookie, 1); break; } rx_desc = (struct dp_rx_desc *) hal_rx_get_reo_desc_va(ring_desc); dp_rx_desc_sw_cc_check(soc, rx_buf_cookie, &rx_desc); status = dp_rx_desc_sanity(soc, hal_soc, hal_ring_hdl, ring_desc, rx_desc); if (QDF_IS_STATUS_ERROR(status)) { if (qdf_unlikely(rx_desc && rx_desc->nbuf)) { qdf_assert_always(!rx_desc->unmapped); dp_rx_nbuf_unmap(soc, rx_desc, reo_ring_num); dp_rx_buffer_pool_nbuf_free(soc, rx_desc->nbuf, rx_desc->pool_id); dp_rx_add_to_free_desc_list( &head[rx_desc->chip_id][rx_desc->pool_id], &tail[rx_desc->chip_id][rx_desc->pool_id], rx_desc); } continue; } /* * this is a unlikely scenario where the host is reaping * a descriptor which it already reaped just a while ago * but is yet to replenish it back to HW. * In this case host will dump the last 128 descriptors * including the software descriptor rx_desc and assert. */ if (qdf_unlikely(!rx_desc->in_use)) { DP_STATS_INC(soc, rx.err.hal_reo_dest_dup, 1); dp_info_rl("Reaping rx_desc not in use!"); dp_rx_dump_info_and_assert(soc, hal_ring_hdl, ring_desc, rx_desc); continue; } status = dp_rx_desc_nbuf_sanity_check(soc, ring_desc, rx_desc); if (qdf_unlikely(QDF_IS_STATUS_ERROR(status))) { DP_STATS_INC(soc, rx.err.nbuf_sanity_fail, 1); dp_info_rl("Nbuf sanity check failure!"); dp_rx_dump_info_and_assert(soc, hal_ring_hdl, ring_desc, rx_desc); rx_desc->in_err_state = 1; continue; } if (qdf_unlikely(!dp_rx_desc_check_magic(rx_desc))) { dp_err("Invalid rx_desc cookie=%d", rx_buf_cookie); DP_STATS_INC(soc, rx.err.rx_desc_invalid_magic, 1); dp_rx_dump_info_and_assert(soc, hal_ring_hdl, ring_desc, rx_desc); } pkt_capture_offload = dp_rx_copy_desc_info_in_nbuf_cb(soc, ring_desc, rx_desc->nbuf, reo_ring_num); if (qdf_unlikely(qdf_nbuf_is_rx_chfrag_cont(rx_desc->nbuf))) { /* In dp_rx_sg_create() until the last buffer, * end bit should not be set. As continuation bit set, * this is not a last buffer. */ qdf_nbuf_set_rx_chfrag_end(rx_desc->nbuf, 0); /* previous msdu has end bit set, so current one is * the new MPDU */ if (is_prev_msdu_last) { /* Get number of entries available in HW ring */ num_entries_avail = hal_srng_dst_num_valid(hal_soc, hal_ring_hdl, 1); /* For new MPDU check if we can read complete * MPDU by comparing the number of buffers * available and number of buffers needed to * reap this MPDU */ if ((QDF_NBUF_CB_RX_PKT_LEN(rx_desc->nbuf) / (buf_size - soc->rx_pkt_tlv_size) + 1) > num_pending) { DP_STATS_INC(soc, rx.msdu_scatter_wait_break, 1); dp_rx_cookie_reset_invalid_bit( ring_desc); /* As we are going to break out of the * loop because of unavailability of * descs to form complete SG, we need to * reset the TP in the REO destination * ring. */ hal_srng_dst_dec_tp(hal_soc, hal_ring_hdl); break; } is_prev_msdu_last = false; } } else if (qdf_unlikely(!dp_rx_war_peek_msdu_done(soc, rx_desc))) { struct dp_rx_desc *old_rx_desc = dp_rx_war_store_msdu_done_fail_desc( soc, rx_desc, reo_ring_num); if (qdf_likely(old_rx_desc)) { rx_bufs_reaped[rx_desc->chip_id][rx_desc->pool_id]++; dp_rx_add_to_free_desc_list (&head[rx_desc->chip_id][rx_desc->pool_id], &tail[rx_desc->chip_id][rx_desc->pool_id], old_rx_desc); quota -= 1; num_pending -= 1; num_rx_bufs_reaped++; } rx_desc->msdu_done_fail = 1; DP_STATS_INC(soc, rx.err.msdu_done_fail, 1); dp_err("MSDU DONE failure %d", soc->stats.rx.err.msdu_done_fail); dp_rx_msdu_done_fail_event_record(soc, rx_desc, rx_desc->nbuf); continue; } if (!is_prev_msdu_last && !(qdf_nbuf_is_rx_chfrag_cont(rx_desc->nbuf))) is_prev_msdu_last = true; rx_bufs_reaped[rx_desc->chip_id][rx_desc->pool_id]++; /* * move unmap after scattered msdu waiting break logic * in case double skb unmap happened. */ dp_rx_nbuf_unmap(soc, rx_desc, reo_ring_num); DP_RX_PROCESS_NBUF(soc, nbuf_head, nbuf_tail, ebuf_head, ebuf_tail, rx_desc); quota -= 1; num_pending -= 1; dp_rx_add_to_free_desc_list (&head[rx_desc->chip_id][rx_desc->pool_id], &tail[rx_desc->chip_id][rx_desc->pool_id], rx_desc); num_rx_bufs_reaped++; dp_rx_prefetch_hw_sw_nbuf_32_byte_desc(soc, hal_soc, num_pending, hal_ring_hdl, &last_prefetched_hw_desc, &last_prefetched_sw_desc); /* * only if complete msdu is received for scatter case, * then allow break. */ if (is_prev_msdu_last && dp_rx_reap_loop_pkt_limit_hit(soc, num_rx_bufs_reaped, max_reap_limit)) break; } done: dp_rx_srng_access_end(int_ctx, soc, hal_ring_hdl); qdf_dsb(); dp_rx_per_core_stats_update(soc, reo_ring_num, num_rx_bufs_reaped); for (chip_id = 0; chip_id < WLAN_MAX_MLO_CHIPS; chip_id++) { for (mac_id = 0; mac_id < MAX_PDEV_CNT; mac_id++) { /* * continue with next mac_id if no pkts were reaped * from that pool */ if (!rx_bufs_reaped[chip_id][mac_id]) continue; replenish_soc = dp_rx_replenish_soc_get(soc, chip_id); dp_rxdma_srng = &replenish_soc->rx_refill_buf_ring[mac_id]; rx_desc_pool = &replenish_soc->rx_desc_buf[mac_id]; dp_rx_buffers_replenish_simple(replenish_soc, mac_id, dp_rxdma_srng, rx_desc_pool, rx_bufs_reaped[chip_id][mac_id], &head[chip_id][mac_id], &tail[chip_id][mac_id]); } } /* Peer can be NULL is case of LFR */ if (qdf_likely(txrx_peer)) vdev = NULL; /* * BIG loop where each nbuf is dequeued from global queue, * processed and queued back on a per vdev basis. These nbufs * are sent to stack as and when we run out of nbufs * or a new nbuf dequeued from global queue has a different * vdev when compared to previous nbuf. */ nbuf = nbuf_head; while (nbuf) { next = nbuf->next; dp_rx_prefetch_nbuf_data_be(nbuf, next); if (qdf_unlikely(dp_rx_is_raw_frame_dropped(nbuf))) { nbuf = next; dp_verbose_debug("drop raw frame"); DP_STATS_INC(soc, rx.err.raw_frm_drop, 1); continue; } rx_tlv_hdr = qdf_nbuf_data(nbuf); vdev_id = QDF_NBUF_CB_RX_VDEV_ID(nbuf); peer_id = dp_rx_get_peer_id_be(nbuf); dp_rx_set_mpdu_seq_number_be(nbuf, rx_tlv_hdr); if (dp_rx_is_list_ready(deliver_list_head, vdev, txrx_peer, peer_id, vdev_id)) { dp_rx_deliver_to_stack(soc, vdev, txrx_peer, deliver_list_head, deliver_list_tail); deliver_list_head = NULL; deliver_list_tail = NULL; } /* Get TID from struct cb->tid_val, save to tid */ tid = qdf_nbuf_get_tid_val(nbuf); if (qdf_unlikely(tid >= CDP_MAX_DATA_TIDS)) { DP_STATS_INC(soc, rx.err.rx_invalid_tid_err, 1); dp_verbose_debug("drop invalid tid"); dp_rx_nbuf_free(nbuf); nbuf = next; continue; } if (qdf_unlikely(!txrx_peer)) { txrx_peer = dp_rx_get_txrx_peer_and_vdev(soc, nbuf, peer_id, &txrx_ref_handle, pkt_capture_offload, &vdev, &rx_pdev, &dsf, &old_tid); if (qdf_unlikely(!txrx_peer) || qdf_unlikely(!vdev)) { dp_verbose_debug("drop no peer frame"); nbuf = next; continue; } enh_flag = rx_pdev->enhanced_stats_en; } else if (txrx_peer && txrx_peer->peer_id != peer_id) { dp_txrx_peer_unref_delete(txrx_ref_handle, DP_MOD_ID_RX); txrx_peer = dp_rx_get_txrx_peer_and_vdev(soc, nbuf, peer_id, &txrx_ref_handle, pkt_capture_offload, &vdev, &rx_pdev, &dsf, &old_tid); if (qdf_unlikely(!txrx_peer) || qdf_unlikely(!vdev)) { dp_verbose_debug("drop by unmatch peer_id"); nbuf = next; continue; } enh_flag = rx_pdev->enhanced_stats_en; } if (txrx_peer) { QDF_NBUF_CB_DP_TRACE_PRINT(nbuf) = false; qdf_dp_trace_set_track(nbuf, QDF_RX); QDF_NBUF_CB_RX_DP_TRACE(nbuf) = 1; QDF_NBUF_CB_RX_PACKET_TRACK(nbuf) = QDF_NBUF_RX_PKT_DATA_TRACK; } rx_bufs_used++; /* MLD Link Peer Statistics support */ if (txrx_peer->is_mld_peer && rx_pdev->link_peer_stats) { link_id = dp_rx_get_stats_arr_idx_from_link_id( nbuf, txrx_peer); } else { link_id = 0; } dp_rx_set_nbuf_band(nbuf, txrx_peer, link_id); /* when hlos tid override is enabled, save tid in * skb->priority */ if (qdf_unlikely(vdev->skip_sw_tid_classification & DP_TXRX_HLOS_TID_OVERRIDE_ENABLED)) qdf_nbuf_set_priority(nbuf, tid); DP_RX_TID_SAVE(nbuf, tid); if (qdf_unlikely(dsf) || qdf_unlikely(peer_ext_stats) || dp_rx_pkt_tracepoints_enabled()) qdf_nbuf_set_timestamp(nbuf); if (qdf_likely(old_tid != tid)) { tid_stats = &rx_pdev->stats.tid_stats.tid_rx_stats[reo_ring_num][tid]; old_tid = tid; } /* * Check if DMA completed -- msdu_done is the last bit * to be written */ if (qdf_unlikely(!qdf_nbuf_is_rx_chfrag_cont(nbuf) && !hal_rx_tlv_msdu_done_get_be(rx_tlv_hdr))) { DP_STATS_INC(soc, rx.err.msdu_done_fail, 1); dp_err("MSDU DONE failure %d", soc->stats.rx.err.msdu_done_fail); hal_rx_dump_pkt_tlvs(hal_soc, rx_tlv_hdr, QDF_TRACE_LEVEL_INFO); dp_rx_msdu_done_fail_event_record(soc, NULL, nbuf); tid_stats->fail_cnt[MSDU_DONE_FAILURE]++; dp_rx_nbuf_free(nbuf); qdf_assert(0); nbuf = next; continue; } DP_HIST_PACKET_COUNT_INC(vdev->pdev->pdev_id); /* * First IF condition: * 802.11 Fragmented pkts are reinjected to REO * HW block as SG pkts and for these pkts we only * need to pull the RX TLVS header length. * Second IF condition: * The below condition happens when an MSDU is spread * across multiple buffers. This can happen in two cases * 1. The nbuf size is smaller then the received msdu. * ex: we have set the nbuf size to 2048 during * nbuf_alloc. but we received an msdu which is * 2304 bytes in size then this msdu is spread * across 2 nbufs. * * 2. AMSDUs when RAW mode is enabled. * ex: 1st MSDU is in 1st nbuf and 2nd MSDU is spread * across 1st nbuf and 2nd nbuf and last MSDU is * spread across 2nd nbuf and 3rd nbuf. * * for these scenarios let us create a skb frag_list and * append these buffers till the last MSDU of the AMSDU * Third condition: * This is the most likely case, we receive 802.3 pkts * decapsulated by HW, here we need to set the pkt length. */ if (qdf_unlikely(qdf_nbuf_is_frag(nbuf))) { bool is_mcbc, is_sa_vld, is_da_vld; is_mcbc = hal_rx_msdu_end_da_is_mcbc_get(soc->hal_soc, rx_tlv_hdr); is_sa_vld = hal_rx_msdu_end_sa_is_valid_get(soc->hal_soc, rx_tlv_hdr); is_da_vld = hal_rx_msdu_end_da_is_valid_get(soc->hal_soc, rx_tlv_hdr); qdf_nbuf_set_da_mcbc(nbuf, is_mcbc); qdf_nbuf_set_da_valid(nbuf, is_da_vld); qdf_nbuf_set_sa_valid(nbuf, is_sa_vld); qdf_nbuf_pull_head(nbuf, soc->rx_pkt_tlv_size); } else if (qdf_nbuf_is_rx_chfrag_cont(nbuf)) { msdu_len = QDF_NBUF_CB_RX_PKT_LEN(nbuf); nbuf = dp_rx_sg_create(soc, nbuf); next = nbuf->next; if (qdf_nbuf_is_raw_frame(nbuf)) { DP_STATS_INC(vdev->pdev, rx_raw_pkts, 1); DP_PEER_PER_PKT_STATS_INC_PKT(txrx_peer, rx.raw, 1, msdu_len, link_id); } else { DP_STATS_INC(soc, rx.err.scatter_msdu, 1); if (!dp_rx_is_sg_supported()) { dp_rx_nbuf_free(nbuf); dp_info_rl("sg msdu len %d, dropped", msdu_len); nbuf = next; continue; } } } else { l3_pad = hal_rx_get_l3_pad_bytes_be(nbuf, rx_tlv_hdr); msdu_len = QDF_NBUF_CB_RX_PKT_LEN(nbuf); pkt_len = msdu_len + l3_pad + soc->rx_pkt_tlv_size; qdf_nbuf_set_pktlen(nbuf, pkt_len); dp_rx_skip_tlvs(soc, nbuf, l3_pad); } dp_rx_send_pktlog(soc, rx_pdev, nbuf, QDF_TX_RX_STATUS_OK); if (!dp_wds_rx_policy_check(rx_tlv_hdr, vdev, txrx_peer)) { dp_rx_err("%pK: Policy Check Drop pkt", soc); DP_PEER_PER_PKT_STATS_INC(txrx_peer, rx.policy_check_drop, 1, link_id); tid_stats->fail_cnt[POLICY_CHECK_DROP]++; /* Drop & free packet */ dp_rx_nbuf_free(nbuf); /* Statistics */ nbuf = next; continue; } /* * Drop non-EAPOL frames from unauthorized peer. */ if (qdf_likely(txrx_peer) && qdf_unlikely(!txrx_peer->authorize) && !qdf_nbuf_is_raw_frame(nbuf)) { bool is_eapol = qdf_nbuf_is_ipv4_eapol_pkt(nbuf) || qdf_nbuf_is_ipv4_wapi_pkt(nbuf); if (!is_eapol) { DP_PEER_PER_PKT_STATS_INC(txrx_peer, rx.peer_unauth_rx_pkt_drop, 1, link_id); dp_verbose_debug("drop by unauthorized peer"); dp_rx_nbuf_free(nbuf); nbuf = next; continue; } } dp_rx_cksum_offload(vdev->pdev, nbuf, rx_tlv_hdr); dp_rx_update_flow_info(nbuf, rx_tlv_hdr); if (qdf_unlikely(!rx_pdev->rx_fast_flag)) { /* * process frame for mulitpass phrase processing */ if (qdf_unlikely(vdev->multipass_en)) { if (dp_rx_multipass_process(txrx_peer, nbuf, tid) == false) { DP_PEER_PER_PKT_STATS_INC (txrx_peer, rx.multipass_rx_pkt_drop, 1, link_id); dp_verbose_debug("drop multi pass"); dp_rx_nbuf_free(nbuf); nbuf = next; continue; } } if (qdf_unlikely(txrx_peer && (txrx_peer->nawds_enabled) && (qdf_nbuf_is_da_mcbc(nbuf)) && (hal_rx_get_mpdu_mac_ad4_valid_be (rx_tlv_hdr) == false))) { tid_stats->fail_cnt[NAWDS_MCAST_DROP]++; DP_PEER_PER_PKT_STATS_INC(txrx_peer, rx.nawds_mcast_drop, 1, link_id); dp_verbose_debug("drop nawds"); dp_rx_nbuf_free(nbuf); nbuf = next; continue; } /* Update the protocol tag in SKB based on CCE metadata */ dp_rx_update_protocol_tag(soc, vdev, nbuf, rx_tlv_hdr, reo_ring_num, false, true); /* Update the flow tag in SKB based on FSE metadata */ dp_rx_update_flow_tag(soc, vdev, nbuf, rx_tlv_hdr, true); if (qdf_unlikely(vdev->mesh_vdev)) { if (dp_rx_filter_mesh_packets(vdev, nbuf, rx_tlv_hdr) == QDF_STATUS_SUCCESS) { dp_rx_info("%pK: mesh pkt filtered", soc); tid_stats->fail_cnt[MESH_FILTER_DROP]++; DP_STATS_INC(vdev->pdev, dropped.mesh_filter, 1); dp_rx_nbuf_free(nbuf); nbuf = next; continue; } dp_rx_fill_mesh_stats(vdev, nbuf, rx_tlv_hdr, txrx_peer); } } if (qdf_likely(vdev->rx_decap_type == htt_cmn_pkt_type_ethernet) && qdf_likely(!vdev->mesh_vdev)) { dp_rx_wds_learn(soc, vdev, rx_tlv_hdr, txrx_peer, nbuf); } dp_rx_msdu_stats_update(soc, nbuf, rx_tlv_hdr, txrx_peer, reo_ring_num, tid_stats, link_id); if (qdf_likely(vdev->rx_decap_type == htt_cmn_pkt_type_ethernet) && qdf_likely(!vdev->mesh_vdev)) { /* Intrabss-fwd */ if (dp_rx_check_ap_bridge(vdev)) if (dp_rx_intrabss_fwd_be(soc, txrx_peer, rx_tlv_hdr, nbuf, link_id)) { nbuf = next; tid_stats->intrabss_cnt++; continue; /* Get next desc */ } } dp_rx_fill_gro_info(soc, rx_tlv_hdr, nbuf, &rx_ol_pkt_cnt); dp_rx_mark_first_packet_after_wow_wakeup(vdev->pdev, rx_tlv_hdr, nbuf); dp_rx_update_stats(soc, nbuf); dp_pkt_add_timestamp(txrx_peer->vdev, QDF_PKT_RX_DRIVER_ENTRY, current_time, nbuf); DP_RX_LIST_APPEND(deliver_list_head, deliver_list_tail, nbuf); DP_PEER_TO_STACK_INCC_PKT(txrx_peer, 1, QDF_NBUF_CB_RX_PKT_LEN(nbuf), enh_flag); DP_PEER_PER_PKT_STATS_INC_PKT(txrx_peer, rx.rx_success, 1, QDF_NBUF_CB_RX_PKT_LEN(nbuf), link_id); if (qdf_unlikely(txrx_peer->in_twt)) DP_PEER_PER_PKT_STATS_INC_PKT(txrx_peer, rx.to_stack_twt, 1, QDF_NBUF_CB_RX_PKT_LEN(nbuf), link_id); tid_stats->delivered_to_stack++; nbuf = next; } DP_RX_DELIVER_TO_STACK(soc, vdev, txrx_peer, peer_id, pkt_capture_offload, deliver_list_head, deliver_list_tail); if (qdf_likely(txrx_peer)) dp_txrx_peer_unref_delete(txrx_ref_handle, DP_MOD_ID_RX); /* * 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 the state to normal processing and yield */ if (ring_near_full && quota) goto more_data; if (dp_rx_enable_eol_data_check(soc) && rx_bufs_used) { if (quota) { num_pending = dp_rx_srng_get_num_pending(hal_soc, hal_ring_hdl, num_entries, &near_full); if (num_pending) { DP_STATS_INC(soc, rx.hp_oos2, 1); if (!hif_exec_should_yield(scn, intr_id)) goto more_data; if (qdf_unlikely(near_full)) { DP_STATS_INC(soc, rx.near_full, 1); goto more_data; } } } if (vdev && vdev->osif_fisa_flush) vdev->osif_fisa_flush(soc, reo_ring_num); if (vdev && vdev->osif_gro_flush && rx_ol_pkt_cnt) { vdev->osif_gro_flush(vdev->osif_vdev, reo_ring_num); } } /* Update histogram statistics by looping through pdev's */ DP_RX_HIST_STATS_PER_PDEV(); return rx_bufs_used; /* Assume no scale factor for now */ } #ifdef RX_DESC_MULTI_PAGE_ALLOC /** * dp_rx_desc_pool_init_be_cc() - initial RX desc pool for cookie conversion * @soc: Handle to DP Soc structure * @rx_desc_pool: Rx descriptor pool handler * @pool_id: Rx descriptor pool ID * * Return: QDF_STATUS_SUCCESS - succeeded, others - failed */ static QDF_STATUS dp_rx_desc_pool_init_be_cc(struct dp_soc *soc, struct rx_desc_pool *rx_desc_pool, uint32_t pool_id) { struct dp_hw_cookie_conversion_t *cc_ctx; struct dp_soc_be *be_soc; union dp_rx_desc_list_elem_t *rx_desc_elem; struct dp_spt_page_desc *page_desc; uint32_t ppt_idx = 0; uint32_t avail_entry_index = 0; if (!rx_desc_pool->pool_size) { dp_err("desc_num 0 !!"); return QDF_STATUS_E_FAILURE; } be_soc = dp_get_be_soc_from_dp_soc(soc); cc_ctx = &be_soc->rx_cc_ctx[pool_id]; page_desc = &cc_ctx->page_desc_base[0]; rx_desc_elem = rx_desc_pool->freelist; while (rx_desc_elem) { if (avail_entry_index == 0) { if (ppt_idx >= cc_ctx->total_page_num) { dp_alert("insufficient secondary page tables"); qdf_assert_always(0); } page_desc = &cc_ctx->page_desc_base[ppt_idx++]; } /* put each RX Desc VA to SPT pages and * get corresponding ID */ DP_CC_SPT_PAGE_UPDATE_VA(page_desc->page_v_addr, avail_entry_index, &rx_desc_elem->rx_desc); rx_desc_elem->rx_desc.cookie = dp_cc_desc_id_generate(page_desc->ppt_index, avail_entry_index); rx_desc_elem->rx_desc.chip_id = dp_mlo_get_chip_id(soc); rx_desc_elem->rx_desc.pool_id = pool_id; rx_desc_elem->rx_desc.in_use = 0; rx_desc_elem = rx_desc_elem->next; avail_entry_index = (avail_entry_index + 1) & DP_CC_SPT_PAGE_MAX_ENTRIES_MASK; } return QDF_STATUS_SUCCESS; } #else static QDF_STATUS dp_rx_desc_pool_init_be_cc(struct dp_soc *soc, struct rx_desc_pool *rx_desc_pool, uint32_t pool_id) { struct dp_hw_cookie_conversion_t *cc_ctx; struct dp_soc_be *be_soc; struct dp_spt_page_desc *page_desc; uint32_t ppt_idx = 0; uint32_t avail_entry_index = 0; int i = 0; if (!rx_desc_pool->pool_size) { dp_err("desc_num 0 !!"); return QDF_STATUS_E_FAILURE; } be_soc = dp_get_be_soc_from_dp_soc(soc); cc_ctx = &be_soc->rx_cc_ctx[pool_id]; page_desc = &cc_ctx->page_desc_base[0]; for (i = 0; i <= rx_desc_pool->pool_size - 1; i++) { if (i == rx_desc_pool->pool_size - 1) rx_desc_pool->array[i].next = NULL; else rx_desc_pool->array[i].next = &rx_desc_pool->array[i + 1]; if (avail_entry_index == 0) { if (ppt_idx >= cc_ctx->total_page_num) { dp_alert("insufficient secondary page tables"); qdf_assert_always(0); } page_desc = &cc_ctx->page_desc_base[ppt_idx++]; } /* put each RX Desc VA to SPT pages and * get corresponding ID */ DP_CC_SPT_PAGE_UPDATE_VA(page_desc->page_v_addr, avail_entry_index, &rx_desc_pool->array[i].rx_desc); rx_desc_pool->array[i].rx_desc.cookie = dp_cc_desc_id_generate(page_desc->ppt_index, avail_entry_index); rx_desc_pool->array[i].rx_desc.pool_id = pool_id; rx_desc_pool->array[i].rx_desc.in_use = 0; rx_desc_pool->array[i].rx_desc.chip_id = dp_mlo_get_chip_id(soc); avail_entry_index = (avail_entry_index + 1) & DP_CC_SPT_PAGE_MAX_ENTRIES_MASK; } return QDF_STATUS_SUCCESS; } #endif static void dp_rx_desc_pool_deinit_be_cc(struct dp_soc *soc, struct rx_desc_pool *rx_desc_pool, uint32_t pool_id) { struct dp_spt_page_desc *page_desc; struct dp_soc_be *be_soc; int i = 0; struct dp_hw_cookie_conversion_t *cc_ctx; be_soc = dp_get_be_soc_from_dp_soc(soc); cc_ctx = &be_soc->rx_cc_ctx[pool_id]; for (i = 0; i < cc_ctx->total_page_num; i++) { page_desc = &cc_ctx->page_desc_base[i]; qdf_mem_zero(page_desc->page_v_addr, qdf_page_size); } } QDF_STATUS dp_rx_desc_pool_init_be(struct dp_soc *soc, struct rx_desc_pool *rx_desc_pool, uint32_t pool_id) { QDF_STATUS status = QDF_STATUS_SUCCESS; /* Only regular RX buffer desc pool use HW cookie conversion */ if (rx_desc_pool->desc_type == QDF_DP_RX_DESC_BUF_TYPE) { dp_info("rx_desc_buf pool init"); status = dp_rx_desc_pool_init_be_cc(soc, rx_desc_pool, pool_id); } else { dp_info("non_rx_desc_buf_pool init"); status = dp_rx_desc_pool_init_generic(soc, rx_desc_pool, pool_id); } return status; } void dp_rx_desc_pool_deinit_be(struct dp_soc *soc, struct rx_desc_pool *rx_desc_pool, uint32_t pool_id) { if (rx_desc_pool->desc_type == QDF_DP_RX_DESC_BUF_TYPE) dp_rx_desc_pool_deinit_be_cc(soc, rx_desc_pool, pool_id); } #ifdef DP_FEATURE_HW_COOKIE_CONVERSION #ifdef DP_HW_COOKIE_CONVERT_EXCEPTION QDF_STATUS dp_wbm_get_rx_desc_from_hal_desc_be(struct dp_soc *soc, void *ring_desc, struct dp_rx_desc **r_rx_desc) { if (hal_rx_wbm_get_cookie_convert_done(ring_desc)) { /* HW cookie conversion done */ *r_rx_desc = (struct dp_rx_desc *) hal_rx_wbm_get_desc_va(ring_desc); } else { /* SW do cookie conversion */ uint32_t cookie = HAL_RX_BUF_COOKIE_GET(ring_desc); *r_rx_desc = (struct dp_rx_desc *) dp_cc_desc_find(soc, cookie); } return QDF_STATUS_SUCCESS; } #else QDF_STATUS dp_wbm_get_rx_desc_from_hal_desc_be(struct dp_soc *soc, void *ring_desc, struct dp_rx_desc **r_rx_desc) { *r_rx_desc = (struct dp_rx_desc *) hal_rx_wbm_get_desc_va(ring_desc); return QDF_STATUS_SUCCESS; } #endif /* DP_HW_COOKIE_CONVERT_EXCEPTION */ struct dp_rx_desc *dp_rx_desc_ppeds_cookie_2_va(struct dp_soc *soc, unsigned long cookie) { return (struct dp_rx_desc *)cookie; } #else struct dp_rx_desc *dp_rx_desc_ppeds_cookie_2_va(struct dp_soc *soc, unsigned long cookie) { if (!cookie) return NULL; return (struct dp_rx_desc *)dp_cc_desc_find(soc, cookie); } QDF_STATUS dp_wbm_get_rx_desc_from_hal_desc_be(struct dp_soc *soc, void *ring_desc, struct dp_rx_desc **r_rx_desc) { /* SW do cookie conversion */ uint32_t cookie = HAL_RX_BUF_COOKIE_GET(ring_desc); *r_rx_desc = (struct dp_rx_desc *) dp_cc_desc_find(soc, cookie); return QDF_STATUS_SUCCESS; } #endif /* DP_FEATURE_HW_COOKIE_CONVERSION */ struct dp_rx_desc *dp_rx_desc_cookie_2_va_be(struct dp_soc *soc, uint32_t cookie) { return (struct dp_rx_desc *)dp_cc_desc_find(soc, cookie); } #if defined(WLAN_FEATURE_11BE_MLO) #if defined(WLAN_MLO_MULTI_CHIP) && defined(WLAN_MCAST_MLO) #define DP_RANDOM_MAC_ID_BIT_MASK 0xC0 #define DP_RANDOM_MAC_OFFSET 1 #define DP_MAC_LOCAL_ADMBIT_MASK 0x2 #define DP_MAC_LOCAL_ADMBIT_OFFSET 0 static inline void dp_rx_dummy_src_mac(struct dp_vdev *vdev, qdf_nbuf_t nbuf) { qdf_ether_header_t *eh = (qdf_ether_header_t *)qdf_nbuf_data(nbuf); eh->ether_shost[DP_MAC_LOCAL_ADMBIT_OFFSET] = eh->ether_shost[DP_MAC_LOCAL_ADMBIT_OFFSET] | DP_MAC_LOCAL_ADMBIT_MASK; } #ifdef QCA_SUPPORT_WDS_EXTENDED static inline bool dp_rx_mlo_igmp_wds_ext_handler(struct dp_txrx_peer *peer) { return qdf_atomic_test_bit(WDS_EXT_PEER_INIT_BIT, &peer->wds_ext.init); } #else static inline bool dp_rx_mlo_igmp_wds_ext_handler(struct dp_txrx_peer *peer) { return false; } #endif #ifdef EXT_HYBRID_MLO_MODE static inline bool dp_rx_check_ext_hybrid_mode(struct dp_soc *soc, struct dp_vdev *vdev) { return ((DP_MLD_MODE_HYBRID_NONBOND == soc->mld_mode_ap) && (wlan_op_mode_ap == vdev->opmode)); } #else static inline bool dp_rx_check_ext_hybrid_mode(struct dp_soc *soc, struct dp_vdev *vdev) { return false; } #endif bool dp_rx_mlo_igmp_handler(struct dp_soc *soc, struct dp_vdev *vdev, struct dp_txrx_peer *peer, qdf_nbuf_t nbuf, uint8_t link_id) { qdf_nbuf_t nbuf_copy; struct dp_vdev_be *be_vdev = dp_get_be_vdev_from_dp_vdev(vdev); uint8_t tid = qdf_nbuf_get_tid_val(nbuf); struct cdp_tid_rx_stats *tid_stats = &peer->vdev->pdev->stats. tid_stats.tid_rx_wbm_stats[0][tid]; if (!(qdf_nbuf_is_ipv4_igmp_pkt(nbuf) || qdf_nbuf_is_ipv6_igmp_pkt(nbuf))) return false; if (qdf_unlikely(vdev->multipass_en)) { if (dp_rx_multipass_process(peer, nbuf, tid) == false) { DP_PEER_PER_PKT_STATS_INC(peer, rx.multipass_rx_pkt_drop, 1, link_id); return false; } } if (!peer->bss_peer) { if (dp_rx_intrabss_mcbc_fwd(soc, peer, NULL, nbuf, tid_stats, link_id)) dp_rx_err("forwarding failed"); } qdf_nbuf_set_next(nbuf, NULL); /* REO sends IGMP to driver only if AP is operating in hybrid * mld mode. */ if (qdf_unlikely(dp_rx_mlo_igmp_wds_ext_handler(peer))) { /* send the IGMP to the netdev corresponding to the interface * its received on */ goto send_pkt; } if (dp_rx_check_ext_hybrid_mode(soc, vdev)) { /* send the IGMP to the netdev corresponding to the interface * its received on */ goto send_pkt; } /* * In the case of ME5/ME6, Backhaul WDS for a mld peer, NAWDS, * legacy non-mlo AP vdev & non-AP vdev(which is very unlikely), * send the igmp pkt on the same link where it received, as these * features will use peer based tcl metadata. */ if (vdev->mcast_enhancement_en || peer->is_mld_peer || peer->nawds_enabled || !vdev->mlo_vdev || qdf_unlikely(wlan_op_mode_ap != vdev->opmode)) { /* send the IGMP to the netdev corresponding to the interface * its received on */ goto send_pkt; } /* We are here, it means a legacy non-wds sta is connected * to a hybrid mld ap, So send a clone of the IGPMP packet * on the interface where it was received. */ nbuf_copy = qdf_nbuf_copy(nbuf); if (qdf_likely(nbuf_copy)) dp_rx_deliver_to_stack(soc, vdev, peer, nbuf_copy, NULL); dp_rx_dummy_src_mac(vdev, nbuf); /* Set the ml peer valid bit in skb peer metadata, so that osif * can deliver the SA mangled IGMP packet to mld netdev. */ QDF_NBUF_CB_RX_PEER_ID(nbuf) |= CDP_RX_ML_PEER_VALID_MASK; /* Deliver the original IGMP with dummy src on the mld netdev */ send_pkt: dp_rx_deliver_to_stack(be_vdev->vdev.pdev->soc, &be_vdev->vdev, peer, nbuf, NULL); return true; } #else bool dp_rx_mlo_igmp_handler(struct dp_soc *soc, struct dp_vdev *vdev, struct dp_txrx_peer *peer, qdf_nbuf_t nbuf, uint8_t link_id) { return false; } #endif #endif #ifdef WLAN_FEATURE_NEAR_FULL_IRQ uint32_t dp_rx_nf_process(struct dp_intr *int_ctx, hal_ring_handle_t hal_ring_hdl, uint8_t reo_ring_num, uint32_t quota) { struct dp_soc *soc = int_ctx->soc; struct dp_srng *rx_ring = &soc->reo_dest_ring[reo_ring_num]; uint32_t work_done = 0; if (dp_srng_get_near_full_level(soc, rx_ring) < DP_SRNG_THRESH_NEAR_FULL) return 0; qdf_atomic_set(&rx_ring->near_full, 1); work_done++; return work_done; } #endif #ifndef QCA_HOST_MODE_WIFI_DISABLED #ifdef WLAN_FEATURE_11BE_MLO /** * dp_rx_intrabss_fwd_mlo_allow() - check if MLO forwarding is allowed * @ta_peer: transmitter peer handle * @da_peer: destination peer handle * * Return: true - MLO forwarding case, false: not */ static inline bool dp_rx_intrabss_fwd_mlo_allow(struct dp_txrx_peer *ta_peer, struct dp_txrx_peer *da_peer) { /* TA peer and DA peer's vdev should be partner MLO vdevs */ if (dp_peer_find_mac_addr_cmp(&ta_peer->vdev->mld_mac_addr, &da_peer->vdev->mld_mac_addr)) return false; return true; } #else static inline bool dp_rx_intrabss_fwd_mlo_allow(struct dp_txrx_peer *ta_peer, struct dp_txrx_peer *da_peer) { return false; } #endif #ifdef INTRA_BSS_FWD_OFFLOAD /** * dp_rx_intrabss_ucast_check_be() - Check if intrabss is allowed * for unicast frame * @nbuf: RX packet buffer * @ta_peer: transmitter DP peer handle * @rx_tlv_hdr: Rx TLV header * @msdu_metadata: MSDU meta data info * @params: params to be filled in * * Return: true - intrabss allowed * false - not allow */ static bool dp_rx_intrabss_ucast_check_be(qdf_nbuf_t nbuf, struct dp_txrx_peer *ta_peer, uint8_t *rx_tlv_hdr, struct hal_rx_msdu_metadata *msdu_metadata, struct dp_be_intrabss_params *params) { uint8_t dest_chip_id, dest_chip_pmac_id; struct dp_vdev_be *be_vdev = dp_get_be_vdev_from_dp_vdev(ta_peer->vdev); struct dp_soc_be *be_soc = dp_get_be_soc_from_dp_soc(params->dest_soc); uint16_t da_peer_id; struct dp_peer *da_peer = NULL; if (!qdf_nbuf_is_intra_bss(nbuf)) return false; hal_rx_tlv_get_dest_chip_pmac_id(rx_tlv_hdr, &dest_chip_id, &dest_chip_pmac_id); if (dp_assert_always_internal_stat( (dest_chip_id <= (DP_MLO_MAX_DEST_CHIP_ID - 1)), &be_soc->soc, rx.err.intra_bss_bad_chipid)) return false; params->dest_soc = dp_mlo_get_soc_ref_by_chip_id(be_soc->ml_ctxt, dest_chip_id); if (!params->dest_soc) return false; da_peer_id = HAL_RX_PEER_ID_GET(msdu_metadata); da_peer = dp_peer_get_tgt_peer_by_id(params->dest_soc, da_peer_id, DP_MOD_ID_RX); if (da_peer) { if (da_peer->bss_peer || (da_peer->txrx_peer == ta_peer)) { dp_peer_unref_delete(da_peer, DP_MOD_ID_RX); return false; } dp_peer_unref_delete(da_peer, DP_MOD_ID_RX); } if (!be_vdev->mlo_dev_ctxt) { params->tx_vdev_id = ta_peer->vdev->vdev_id; return true; } if (dest_chip_id == be_soc->mlo_chip_id) { if (dest_chip_pmac_id == ta_peer->vdev->pdev->pdev_id) params->tx_vdev_id = ta_peer->vdev->vdev_id; else params->tx_vdev_id = be_vdev->mlo_dev_ctxt->vdev_list[dest_chip_id] [dest_chip_pmac_id]; return true; } params->tx_vdev_id = be_vdev->mlo_dev_ctxt->vdev_list[dest_chip_id] [dest_chip_pmac_id]; return true; } #else #ifdef WLAN_MLO_MULTI_CHIP static bool dp_rx_intrabss_ucast_check_be(qdf_nbuf_t nbuf, struct dp_txrx_peer *ta_peer, uint8_t *rx_tlv_hdr, struct hal_rx_msdu_metadata *msdu_metadata, struct dp_be_intrabss_params *params) { uint16_t da_peer_id; struct dp_txrx_peer *da_peer; bool ret = false; uint8_t dest_chip_id; dp_txrx_ref_handle txrx_ref_handle = NULL; struct dp_vdev_be *be_vdev = dp_get_be_vdev_from_dp_vdev(ta_peer->vdev); struct dp_soc_be *be_soc = dp_get_be_soc_from_dp_soc(params->dest_soc); if (!(qdf_nbuf_is_da_valid(nbuf) || qdf_nbuf_is_da_mcbc(nbuf))) return false; dest_chip_id = HAL_RX_DEST_CHIP_ID_GET(msdu_metadata); if (dp_assert_always_internal_stat( (dest_chip_id <= (DP_MLO_MAX_DEST_CHIP_ID - 1)), &be_soc->soc, rx.err.intra_bss_bad_chipid)) return false; da_peer_id = HAL_RX_PEER_ID_GET(msdu_metadata); /* use dest chip id when TA is MLD peer and DA is legacy */ if (be_soc->mlo_enabled && ta_peer->mld_peer && !(da_peer_id & HAL_RX_DA_IDX_ML_PEER_MASK)) { /* validate chip_id, get a ref, and re-assign soc */ params->dest_soc = dp_mlo_get_soc_ref_by_chip_id(be_soc->ml_ctxt, dest_chip_id); if (!params->dest_soc) return false; da_peer = dp_txrx_peer_get_ref_by_id(params->dest_soc, da_peer_id, &txrx_ref_handle, DP_MOD_ID_RX); if (!da_peer) return false; } else { da_peer = dp_txrx_peer_get_ref_by_id(params->dest_soc, da_peer_id, &txrx_ref_handle, DP_MOD_ID_RX); if (!da_peer) return false; params->dest_soc = da_peer->vdev->pdev->soc; if (!params->dest_soc) goto rel_da_peer; } params->tx_vdev_id = da_peer->vdev->vdev_id; /* If the source or destination peer in the isolation * list then dont forward instead push to bridge stack. */ if (dp_get_peer_isolation(ta_peer) || dp_get_peer_isolation(da_peer)) { ret = false; goto rel_da_peer; } if (da_peer->bss_peer || (da_peer == ta_peer)) { ret = false; goto rel_da_peer; } /* Same vdev, support Inra-BSS */ if (da_peer->vdev == ta_peer->vdev) { ret = true; goto rel_da_peer; } if (!be_vdev->mlo_dev_ctxt) ret = false; goto rel_da_peer; } /* MLO specific Intra-BSS check */ if (dp_rx_intrabss_fwd_mlo_allow(ta_peer, da_peer)) { /* use dest chip id for legacy dest peer */ if (!(da_peer_id & HAL_RX_DA_IDX_ML_PEER_MASK)) { if (!(be_vdev->mlo_dev_ctxt->vdev_list[dest_chip_id][0] == params->tx_vdev_id) && !(be_vdev->mlo_dev_ctxt->vdev_list[dest_chip_id][1] == params->tx_vdev_id)) { /*dp_soc_unref_delete(soc);*/ goto rel_da_peer; } } ret = true; } rel_da_peer: dp_txrx_peer_unref_delete(txrx_ref_handle, DP_MOD_ID_RX); return ret; } #else static bool dp_rx_intrabss_ucast_check_be(qdf_nbuf_t nbuf, struct dp_txrx_peer *ta_peer, uint8_t *rx_tlv_hdr, struct hal_rx_msdu_metadata *msdu_metadata, struct dp_be_intrabss_params *params) { uint16_t da_peer_id; struct dp_txrx_peer *da_peer; bool ret = false; dp_txrx_ref_handle txrx_ref_handle = NULL; if (!qdf_nbuf_is_da_valid(nbuf) || qdf_nbuf_is_da_mcbc(nbuf)) return false; da_peer_id = dp_rx_peer_metadata_peer_id_get_be( params->dest_soc, msdu_metadata->da_idx); da_peer = dp_txrx_peer_get_ref_by_id(params->dest_soc, da_peer_id, &txrx_ref_handle, DP_MOD_ID_RX); if (!da_peer) return false; params->tx_vdev_id = da_peer->vdev->vdev_id; /* If the source or destination peer in the isolation * list then dont forward instead push to bridge stack. */ if (dp_get_peer_isolation(ta_peer) || dp_get_peer_isolation(da_peer)) goto rel_da_peer; if (da_peer->bss_peer || da_peer == ta_peer) goto rel_da_peer; /* Same vdev, support Inra-BSS */ if (da_peer->vdev == ta_peer->vdev) { ret = true; goto rel_da_peer; } /* MLO specific Intra-BSS check */ if (dp_rx_intrabss_fwd_mlo_allow(ta_peer, da_peer)) { ret = true; goto rel_da_peer; } rel_da_peer: dp_txrx_peer_unref_delete(txrx_ref_handle, DP_MOD_ID_RX); return ret; } #endif /* WLAN_MLO_MULTI_CHIP */ #endif /* INTRA_BSS_FWD_OFFLOAD */ #if defined(WLAN_PKT_CAPTURE_RX_2_0) || defined(CONFIG_WORD_BASED_TLV) void dp_rx_word_mask_subscribe_be(struct dp_soc *soc, uint32_t *msg_word, void *rx_filter) { struct htt_rx_ring_tlv_filter *tlv_filter = (struct htt_rx_ring_tlv_filter *)rx_filter; if (!msg_word || !tlv_filter) return; /* tlv_filter->enable is set to 1 for monitor rings */ if (tlv_filter->enable) return; /* if word mask is zero, FW will set the default values */ if (!(tlv_filter->rx_mpdu_start_wmask > 0 && tlv_filter->rx_msdu_end_wmask > 0)) { return; } HTT_RX_RING_SELECTION_CFG_WORD_MASK_COMPACTION_ENABLE_SET(*msg_word, 1); /* word 14 */ msg_word += 3; *msg_word = 0; HTT_RX_RING_SELECTION_CFG_RX_MPDU_START_WORD_MASK_SET( *msg_word, tlv_filter->rx_mpdu_start_wmask); /* word 15 */ msg_word++; *msg_word = 0; HTT_RX_RING_SELECTION_CFG_RX_MSDU_END_WORD_MASK_SET( *msg_word, tlv_filter->rx_msdu_end_wmask); } #else void dp_rx_word_mask_subscribe_be(struct dp_soc *soc, uint32_t *msg_word, void *rx_filter) { } #endif #if defined(WLAN_MCAST_MLO) && defined(CONFIG_MLO_SINGLE_DEV) static inline bool dp_rx_intrabss_mlo_mcbc_fwd(struct dp_soc *soc, struct dp_vdev *vdev, qdf_nbuf_t nbuf_copy) { struct dp_vdev *mcast_primary_vdev = NULL; struct dp_vdev_be *be_vdev = dp_get_be_vdev_from_dp_vdev(vdev); struct dp_soc_be *be_soc = dp_get_be_soc_from_dp_soc(soc); struct cdp_tx_exception_metadata tx_exc_metadata = {0}; tx_exc_metadata.is_mlo_mcast = 1; tx_exc_metadata.tx_encap_type = CDP_INVALID_TX_ENCAP_TYPE; tx_exc_metadata.sec_type = CDP_INVALID_SEC_TYPE; tx_exc_metadata.peer_id = CDP_INVALID_PEER; tx_exc_metadata.tid = CDP_INVALID_TID; mcast_primary_vdev = dp_mlo_get_mcast_primary_vdev(be_soc, be_vdev, DP_MOD_ID_RX); if (!mcast_primary_vdev) return false; nbuf_copy = dp_tx_send_exception((struct cdp_soc_t *) mcast_primary_vdev->pdev->soc, mcast_primary_vdev->vdev_id, nbuf_copy, &tx_exc_metadata); if (nbuf_copy) qdf_nbuf_free(nbuf_copy); dp_vdev_unref_delete(mcast_primary_vdev->pdev->soc, mcast_primary_vdev, DP_MOD_ID_RX); return true; } #else static inline bool dp_rx_intrabss_mlo_mcbc_fwd(struct dp_soc *soc, struct dp_vdev *vdev, qdf_nbuf_t nbuf_copy) { return false; } #endif bool dp_rx_intrabss_mcast_handler_be(struct dp_soc *soc, struct dp_txrx_peer *ta_txrx_peer, qdf_nbuf_t nbuf_copy, struct cdp_tid_rx_stats *tid_stats, uint8_t link_id) { if (qdf_unlikely(ta_txrx_peer->vdev->nawds_enabled)) { struct cdp_tx_exception_metadata tx_exc_metadata = {0}; uint16_t len = QDF_NBUF_CB_RX_PKT_LEN(nbuf_copy); tx_exc_metadata.peer_id = ta_txrx_peer->peer_id; tx_exc_metadata.is_intrabss_fwd = 1; tx_exc_metadata.tid = HTT_TX_EXT_TID_INVALID; if (dp_tx_send_exception((struct cdp_soc_t *)soc, ta_txrx_peer->vdev->vdev_id, nbuf_copy, &tx_exc_metadata)) { DP_PEER_PER_PKT_STATS_INC_PKT(ta_txrx_peer, rx.intra_bss.fail, 1, len, link_id); tid_stats->fail_cnt[INTRABSS_DROP]++; qdf_nbuf_free(nbuf_copy); } else { DP_PEER_PER_PKT_STATS_INC_PKT(ta_txrx_peer, rx.intra_bss.pkts, 1, len, link_id); tid_stats->intrabss_cnt++; } return true; } if (dp_rx_intrabss_mlo_mcbc_fwd(soc, ta_txrx_peer->vdev, nbuf_copy)) return true; return false; } bool dp_rx_intrabss_fwd_be(struct dp_soc *soc, struct dp_txrx_peer *ta_peer, uint8_t *rx_tlv_hdr, qdf_nbuf_t nbuf, uint8_t link_id) { uint8_t tid = qdf_nbuf_get_tid_val(nbuf); uint8_t ring_id = QDF_NBUF_CB_RX_CTX_ID(nbuf); struct cdp_tid_rx_stats *tid_stats = &ta_peer->vdev->pdev->stats. tid_stats.tid_rx_stats[ring_id][tid]; bool ret = false; struct dp_be_intrabss_params params; struct hal_rx_msdu_metadata msdu_metadata; /* if it is a broadcast pkt (eg: ARP) and it is not its own * source, then clone the pkt and send the cloned pkt for * intra BSS forwarding and original pkt up the network stack * Note: how do we handle multicast pkts. do we forward * all multicast pkts as is or let a higher layer module * like igmpsnoop decide whether to forward or not with * Mcast enhancement. */ if (qdf_nbuf_is_da_mcbc(nbuf) && !ta_peer->bss_peer) { return dp_rx_intrabss_mcbc_fwd(soc, ta_peer, rx_tlv_hdr, nbuf, tid_stats, link_id); } if (dp_rx_intrabss_eapol_drop_check(soc, ta_peer, rx_tlv_hdr, nbuf)) return true; hal_rx_msdu_packet_metadata_get_generic_be(rx_tlv_hdr, &msdu_metadata); params.dest_soc = soc; if (dp_rx_intrabss_ucast_check_be(nbuf, ta_peer, rx_tlv_hdr, &msdu_metadata, ¶ms)) { ret = dp_rx_intrabss_ucast_fwd(params.dest_soc, ta_peer, params.tx_vdev_id, rx_tlv_hdr, nbuf, tid_stats, link_id); } return ret; } #endif #ifndef BE_WBM_RELEASE_DESC_RX_SG_SUPPORT /** * dp_rx_chain_msdus_be() - Function to chain all msdus of a mpdu * to pdev invalid peer list * * @soc: core DP main context * @nbuf: Buffer pointer * @rx_tlv_hdr: start of rx tlv header * @mac_id: mac id * * Return: bool: true for last msdu of mpdu */ static bool dp_rx_chain_msdus_be(struct dp_soc *soc, qdf_nbuf_t nbuf, uint8_t *rx_tlv_hdr, uint8_t mac_id) { bool mpdu_done = false; qdf_nbuf_t curr_nbuf = NULL; qdf_nbuf_t tmp_nbuf = NULL; struct dp_pdev *dp_pdev = dp_get_pdev_for_lmac_id(soc, mac_id); if (!dp_pdev) { dp_rx_debug("%pK: pdev is null for mac_id = %d", soc, mac_id); return mpdu_done; } /* if invalid peer SG list has max values free the buffers in list * and treat current buffer as start of list * * current logic to detect the last buffer from attn_tlv is not reliable * in OFDMA UL scenario hence add max buffers check to avoid list pile * up */ if (!dp_pdev->first_nbuf || (dp_pdev->invalid_peer_head_msdu && QDF_NBUF_CB_RX_NUM_ELEMENTS_IN_LIST (dp_pdev->invalid_peer_head_msdu) >= DP_MAX_INVALID_BUFFERS)) { qdf_nbuf_set_rx_chfrag_start(nbuf, 1); dp_pdev->first_nbuf = true; /* If the new nbuf received is the first msdu of the * amsdu and there are msdus in the invalid peer msdu * list, then let us free all the msdus of the invalid * peer msdu list. * This scenario can happen when we start receiving * new a-msdu even before the previous a-msdu is completely * received. */ curr_nbuf = dp_pdev->invalid_peer_head_msdu; while (curr_nbuf) { tmp_nbuf = curr_nbuf->next; dp_rx_nbuf_free(curr_nbuf); curr_nbuf = tmp_nbuf; } dp_pdev->invalid_peer_head_msdu = NULL; dp_pdev->invalid_peer_tail_msdu = NULL; dp_monitor_get_mpdu_status(dp_pdev, soc, rx_tlv_hdr); } if (qdf_nbuf_is_rx_chfrag_end(nbuf) && hal_rx_attn_msdu_done_get(soc->hal_soc, rx_tlv_hdr)) { qdf_assert_always(dp_pdev->first_nbuf); dp_pdev->first_nbuf = false; mpdu_done = true; } /* * For MCL, invalid_peer_head_msdu and invalid_peer_tail_msdu * should be NULL here, add the checking for debugging purpose * in case some corner case. */ DP_PDEV_INVALID_PEER_MSDU_CHECK(dp_pdev->invalid_peer_head_msdu, dp_pdev->invalid_peer_tail_msdu); DP_RX_LIST_APPEND(dp_pdev->invalid_peer_head_msdu, dp_pdev->invalid_peer_tail_msdu, nbuf); return mpdu_done; } #else static bool dp_rx_chain_msdus_be(struct dp_soc *soc, qdf_nbuf_t nbuf, uint8_t *rx_tlv_hdr, uint8_t mac_id) { return false; } #endif qdf_nbuf_t dp_rx_wbm_err_reap_desc_be(struct dp_intr *int_ctx, struct dp_soc *soc, hal_ring_handle_t hal_ring_hdl, uint32_t quota, uint32_t *rx_bufs_used) { hal_ring_desc_t ring_desc; hal_soc_handle_t hal_soc; struct dp_rx_desc *rx_desc; union dp_rx_desc_list_elem_t *head[WLAN_MAX_MLO_CHIPS][MAX_PDEV_CNT] = { { NULL } }; union dp_rx_desc_list_elem_t *tail[WLAN_MAX_MLO_CHIPS][MAX_PDEV_CNT] = { { NULL } }; uint32_t rx_bufs_reaped[WLAN_MAX_MLO_CHIPS][MAX_PDEV_CNT] = { { 0 } }; uint8_t mac_id; struct dp_srng *dp_rxdma_srng; struct rx_desc_pool *rx_desc_pool; qdf_nbuf_t nbuf_head = NULL; qdf_nbuf_t nbuf_tail = NULL; qdf_nbuf_t nbuf; uint8_t msdu_continuation = 0; bool process_sg_buf = false; QDF_STATUS status; struct dp_soc *replenish_soc; uint8_t chip_id; union hal_wbm_err_info_u wbm_err = { 0 }; qdf_assert(soc && hal_ring_hdl); hal_soc = soc->hal_soc; qdf_assert(hal_soc); if (qdf_unlikely(dp_srng_access_start(int_ctx, soc, hal_ring_hdl))) { /* TODO */ /* * Need API to convert from hal_ring pointer to * Ring Type / Ring Id combo */ dp_rx_err_err("%pK: HAL RING Access Failed -- %pK", soc, hal_ring_hdl); goto done; } while (qdf_likely(quota)) { ring_desc = hal_srng_dst_get_next(hal_soc, hal_ring_hdl); if (qdf_unlikely(!ring_desc)) break; /* Get SW Desc from HAL desc */ if (dp_wbm_get_rx_desc_from_hal_desc_be(soc, ring_desc, &rx_desc)) { dp_rx_err_err("get rx sw desc from hal_desc failed"); continue; } if (dp_assert_always_internal_stat(rx_desc, soc, rx.err.rx_desc_null)) continue; if (!dp_rx_desc_check_magic(rx_desc)) { dp_rx_err_err("%pK: Invalid rx_desc %pK", soc, rx_desc); continue; } /* * this is a unlikely scenario where the host is reaping * a descriptor which it already reaped just a while ago * but is yet to replenish it back to HW. * In this case host will dump the last 128 descriptors * including the software descriptor rx_desc and assert. */ if (qdf_unlikely(!rx_desc->in_use)) { DP_STATS_INC(soc, rx.err.hal_wbm_rel_dup, 1); dp_rx_dump_info_and_assert(soc, hal_ring_hdl, ring_desc, rx_desc); continue; } status = dp_rx_wbm_desc_nbuf_sanity_check(soc, hal_ring_hdl, ring_desc, rx_desc); if (qdf_unlikely(QDF_IS_STATUS_ERROR(status))) { DP_STATS_INC(soc, rx.err.nbuf_sanity_fail, 1); dp_info_rl("Rx error Nbuf %pK sanity check failure!", rx_desc->nbuf); rx_desc->in_err_state = 1; continue; } nbuf = rx_desc->nbuf; /* * Read wbm err info , MSDU info , MPDU info , peer meta data, * from desc. Save all the info in nbuf CB/TLV. * We will need this info when we do the actual nbuf processing */ wbm_err.info = dp_rx_wbm_err_copy_desc_info_in_nbuf( soc, ring_desc, nbuf, rx_desc->pool_id); /* * For WBM ring, expect only MSDU buffers */ if (dp_assert_always_internal_stat( wbm_err.info_bit.buffer_or_desc_type == HAL_RX_WBM_BUF_TYPE_REL_BUF, soc, rx.err.wbm_err_buf_rel_type)) continue; /* * Errors are handled only if the source is RXDMA or REO */ qdf_assert((wbm_err.info_bit.wbm_err_src == HAL_RX_WBM_ERR_SRC_RXDMA) || (wbm_err.info_bit.wbm_err_src == HAL_RX_WBM_ERR_SRC_REO)); rx_desc_pool = &soc->rx_desc_buf[rx_desc->pool_id]; dp_ipa_rx_buf_smmu_mapping_lock(soc); dp_rx_nbuf_unmap_pool(soc, rx_desc_pool, nbuf); rx_desc->unmapped = 1; dp_ipa_rx_buf_smmu_mapping_unlock(soc); if (qdf_unlikely( soc->wbm_release_desc_rx_sg_support && dp_rx_is_sg_formation_required(&wbm_err.info_bit))) { /* SG is detected from continuation bit */ msdu_continuation = dp_rx_wbm_err_msdu_continuation_get(soc, ring_desc, nbuf); if (msdu_continuation && !(soc->wbm_sg_param.wbm_is_first_msdu_in_sg)) { /* Update length from first buffer in SG */ soc->wbm_sg_param.wbm_sg_desc_msdu_len = hal_rx_msdu_start_msdu_len_get( soc->hal_soc, qdf_nbuf_data(nbuf)); soc->wbm_sg_param.wbm_is_first_msdu_in_sg = true; } if (msdu_continuation) { /* MSDU continued packets */ qdf_nbuf_set_rx_chfrag_cont(nbuf, 1); QDF_NBUF_CB_RX_PKT_LEN(nbuf) = soc->wbm_sg_param.wbm_sg_desc_msdu_len; } else { /* This is the terminal packet in SG */ qdf_nbuf_set_rx_chfrag_start(nbuf, 1); qdf_nbuf_set_rx_chfrag_end(nbuf, 1); QDF_NBUF_CB_RX_PKT_LEN(nbuf) = soc->wbm_sg_param.wbm_sg_desc_msdu_len; process_sg_buf = true; } } else { qdf_nbuf_set_rx_chfrag_cont(nbuf, 0); } rx_bufs_reaped[rx_desc->chip_id][rx_desc->pool_id]++; if (qdf_nbuf_is_rx_chfrag_cont(nbuf) || process_sg_buf) { DP_RX_LIST_APPEND(soc->wbm_sg_param.wbm_sg_nbuf_head, soc->wbm_sg_param.wbm_sg_nbuf_tail, nbuf); if (process_sg_buf) { if (!dp_rx_buffer_pool_refill( soc, soc->wbm_sg_param.wbm_sg_nbuf_head, rx_desc->pool_id)) DP_RX_MERGE_TWO_LIST( nbuf_head, nbuf_tail, soc->wbm_sg_param.wbm_sg_nbuf_head, soc->wbm_sg_param.wbm_sg_nbuf_tail); dp_rx_wbm_sg_list_last_msdu_war(soc); dp_rx_wbm_sg_list_reset(soc); process_sg_buf = false; } } else if (!dp_rx_buffer_pool_refill(soc, nbuf, rx_desc->pool_id)) { DP_RX_LIST_APPEND(nbuf_head, nbuf_tail, nbuf); } dp_rx_add_to_free_desc_list (&head[rx_desc->chip_id][rx_desc->pool_id], &tail[rx_desc->chip_id][rx_desc->pool_id], rx_desc); /* * if continuation bit is set then we have MSDU spread * across multiple buffers, let us not decrement quota * till we reap all buffers of that MSDU. */ if (qdf_likely(!msdu_continuation)) quota -= 1; } done: dp_srng_access_end(int_ctx, soc, hal_ring_hdl); for (chip_id = 0; chip_id < WLAN_MAX_MLO_CHIPS; chip_id++) { for (mac_id = 0; mac_id < MAX_PDEV_CNT; mac_id++) { /* * continue with next mac_id if no pkts were reaped * from that pool */ if (!rx_bufs_reaped[chip_id][mac_id]) continue; replenish_soc = dp_rx_replenish_soc_get(soc, chip_id); dp_rxdma_srng = &replenish_soc->rx_refill_buf_ring[mac_id]; rx_desc_pool = &replenish_soc->rx_desc_buf[mac_id]; dp_rx_buffers_replenish_simple(replenish_soc, mac_id, dp_rxdma_srng, rx_desc_pool, rx_bufs_reaped[chip_id][mac_id], &head[chip_id][mac_id], &tail[chip_id][mac_id]); *rx_bufs_used += rx_bufs_reaped[chip_id][mac_id]; } } return nbuf_head; } #ifdef WLAN_FEATURE_11BE_MLO /** * check_extap_multicast_loopback() - Check if rx packet is a loopback packet. * * @vdev: vdev on which rx packet is received * @addr: src address of the received packet * */ static bool check_extap_multicast_loopback(struct dp_vdev *vdev, uint8_t *addr) { /* if src mac addr matches with vdev mac address then drop the pkt */ if (!(qdf_mem_cmp(addr, vdev->mac_addr.raw, QDF_MAC_ADDR_SIZE))) return true; /* if src mac addr matches with mld mac address then drop the pkt */ if (!(qdf_mem_cmp(addr, vdev->mld_mac_addr.raw, QDF_MAC_ADDR_SIZE))) return true; return false; } #else static bool check_extap_multicast_loopback(struct dp_vdev *vdev, uint8_t *addr) { return false; } #endif QDF_STATUS dp_rx_null_q_desc_handle_be(struct dp_soc *soc, qdf_nbuf_t nbuf, uint8_t *rx_tlv_hdr, uint8_t pool_id, struct dp_txrx_peer *txrx_peer, bool is_reo_exception, uint8_t link_id) { uint32_t pkt_len; uint16_t msdu_len; struct dp_vdev *vdev; uint8_t tid; qdf_ether_header_t *eh; struct hal_rx_msdu_metadata msdu_metadata; uint16_t sa_idx = 0; bool is_eapol = 0; bool enh_flag; uint16_t buf_size; buf_size = wlan_cfg_rx_buffer_size(soc->wlan_cfg_ctx); qdf_nbuf_set_rx_chfrag_start( nbuf, hal_rx_msdu_end_first_msdu_get(soc->hal_soc, rx_tlv_hdr)); qdf_nbuf_set_rx_chfrag_end(nbuf, hal_rx_msdu_end_last_msdu_get(soc->hal_soc, rx_tlv_hdr)); qdf_nbuf_set_da_mcbc(nbuf, hal_rx_msdu_end_da_is_mcbc_get(soc->hal_soc, rx_tlv_hdr)); qdf_nbuf_set_da_valid(nbuf, hal_rx_msdu_end_da_is_valid_get(soc->hal_soc, rx_tlv_hdr)); qdf_nbuf_set_sa_valid(nbuf, hal_rx_msdu_end_sa_is_valid_get(soc->hal_soc, rx_tlv_hdr)); tid = hal_rx_tid_get(soc->hal_soc, rx_tlv_hdr); hal_rx_msdu_metadata_get(soc->hal_soc, rx_tlv_hdr, &msdu_metadata); msdu_len = hal_rx_msdu_start_msdu_len_get(soc->hal_soc, rx_tlv_hdr); pkt_len = msdu_len + msdu_metadata.l3_hdr_pad + soc->rx_pkt_tlv_size; if (qdf_likely(!qdf_nbuf_is_frag(nbuf))) { if (dp_rx_check_pkt_len(soc, pkt_len)) goto drop_nbuf; /* Set length in nbuf */ qdf_nbuf_set_pktlen(nbuf, qdf_min(pkt_len, (uint32_t)buf_size)); } /* * Check if DMA completed -- msdu_done is the last bit * to be written */ if (!hal_rx_attn_msdu_done_get(soc->hal_soc, rx_tlv_hdr)) { dp_err_rl("MSDU DONE failure"); hal_rx_dump_pkt_tlvs(soc->hal_soc, rx_tlv_hdr, QDF_TRACE_LEVEL_INFO); qdf_assert(0); } if (!txrx_peer && dp_rx_null_q_handle_invalid_peer_id_exception(soc, pool_id, rx_tlv_hdr, nbuf)) return QDF_STATUS_E_FAILURE; if (!txrx_peer) { bool mpdu_done = false; struct dp_pdev *pdev = dp_get_pdev_for_lmac_id(soc, pool_id); if (!pdev) { dp_err_rl("pdev is null for pool_id = %d", pool_id); return QDF_STATUS_E_FAILURE; } dp_err_rl("txrx_peer is NULL"); DP_STATS_INC_PKT(soc, rx.err.rx_invalid_peer, 1, qdf_nbuf_len(nbuf)); /* QCN9000 has the support enabled */ if (qdf_unlikely(soc->wbm_release_desc_rx_sg_support)) { mpdu_done = true; nbuf->next = NULL; /* Trigger invalid peer handler wrapper */ dp_rx_process_invalid_peer_wrapper(soc, nbuf, mpdu_done, pool_id); } else { mpdu_done = dp_rx_chain_msdus_be(soc, nbuf, rx_tlv_hdr, pool_id); /* Trigger invalid peer handler wrapper */ dp_rx_process_invalid_peer_wrapper( soc, pdev->invalid_peer_head_msdu, mpdu_done, pool_id); } if (mpdu_done) { pdev->invalid_peer_head_msdu = NULL; pdev->invalid_peer_tail_msdu = NULL; } return QDF_STATUS_E_FAILURE; } vdev = txrx_peer->vdev; if (!vdev) { dp_err_rl("Null vdev!"); DP_STATS_INC(soc, rx.err.invalid_vdev, 1); goto drop_nbuf; } /* * Advance the packet start pointer by total size of * pre-header TLV's */ if (qdf_nbuf_is_frag(nbuf)) qdf_nbuf_pull_head(nbuf, soc->rx_pkt_tlv_size); else qdf_nbuf_pull_head(nbuf, (msdu_metadata.l3_hdr_pad + soc->rx_pkt_tlv_size)); DP_STATS_INC_PKT(vdev, rx_i.null_q_desc_pkt, 1, qdf_nbuf_len(nbuf)); dp_vdev_peer_stats_update_protocol_cnt(vdev, nbuf, NULL, 0, 1); if (dp_rx_err_drop_3addr_mcast(vdev, rx_tlv_hdr)) { DP_PEER_PER_PKT_STATS_INC(txrx_peer, rx.mcast_3addr_drop, 1, link_id); goto drop_nbuf; } if (hal_rx_msdu_end_sa_is_valid_get(soc->hal_soc, rx_tlv_hdr)) { sa_idx = hal_rx_msdu_end_sa_idx_get(soc->hal_soc, rx_tlv_hdr); if ((sa_idx < 0) || (sa_idx >= wlan_cfg_get_max_ast_idx(soc->wlan_cfg_ctx))) { DP_STATS_INC(soc, rx.err.invalid_sa_da_idx, 1); goto drop_nbuf; } } if ((!soc->mec_fw_offload) && dp_rx_mcast_echo_check(soc, txrx_peer, rx_tlv_hdr, nbuf)) { /* this is a looped back MCBC pkt, drop it */ DP_PEER_PER_PKT_STATS_INC_PKT(txrx_peer, rx.mec_drop, 1, qdf_nbuf_len(nbuf), link_id); goto drop_nbuf; } /* * In qwrap mode if the received packet matches with any of the vdev * mac addresses, drop it. Donot receive multicast packets originated * from any proxysta. */ if (check_qwrap_multicast_loopback(vdev, nbuf)) { DP_PEER_PER_PKT_STATS_INC_PKT(txrx_peer, rx.mec_drop, 1, qdf_nbuf_len(nbuf), link_id); goto drop_nbuf; } if (qdf_unlikely(txrx_peer->nawds_enabled && hal_rx_msdu_end_da_is_mcbc_get(soc->hal_soc, rx_tlv_hdr))) { dp_err_rl("free buffer for multicast packet"); DP_PEER_PER_PKT_STATS_INC(txrx_peer, rx.nawds_mcast_drop, 1, link_id); goto drop_nbuf; } if (!dp_wds_rx_policy_check(rx_tlv_hdr, vdev, txrx_peer)) { dp_err_rl("mcast Policy Check Drop pkt"); DP_PEER_PER_PKT_STATS_INC(txrx_peer, rx.policy_check_drop, 1, link_id); goto drop_nbuf; } /* WDS Source Port Learning */ if (!soc->ast_offload_support && qdf_likely(vdev->rx_decap_type == htt_cmn_pkt_type_ethernet && vdev->wds_enabled)) dp_rx_wds_srcport_learn(soc, rx_tlv_hdr, txrx_peer, nbuf, msdu_metadata); if (hal_rx_is_unicast(soc->hal_soc, rx_tlv_hdr)) { struct dp_peer *peer; struct dp_rx_tid *rx_tid; peer = dp_peer_get_ref_by_id(soc, txrx_peer->peer_id, DP_MOD_ID_RX_ERR); if (peer) { rx_tid = &peer->rx_tid[tid]; qdf_spin_lock_bh(&rx_tid->tid_lock); if (!peer->rx_tid[tid].hw_qdesc_vaddr_unaligned) { /* For Mesh peer, if on one of the mesh AP the * mesh peer is not deleted, the new addition of mesh * peer on other mesh AP doesn't do BA negotiation * leading to mismatch in BA windows. * To avoid this send max BA window during init. */ if (qdf_unlikely(vdev->mesh_vdev) || qdf_unlikely(txrx_peer->nawds_enabled)) dp_rx_tid_setup_wifi3( peer, BIT(tid), hal_get_rx_max_ba_window(soc->hal_soc,tid), IEEE80211_SEQ_MAX); else dp_rx_tid_setup_wifi3(peer, BIT(tid), 1, IEEE80211_SEQ_MAX); } qdf_spin_unlock_bh(&rx_tid->tid_lock); /* IEEE80211_SEQ_MAX indicates invalid start_seq */ dp_peer_unref_delete(peer, DP_MOD_ID_RX_ERR); } } eh = (qdf_ether_header_t *)qdf_nbuf_data(nbuf); if (!txrx_peer->authorize) { is_eapol = qdf_nbuf_is_ipv4_eapol_pkt(nbuf); if (is_eapol || qdf_nbuf_is_ipv4_wapi_pkt(nbuf)) { if (!dp_rx_err_match_dhost(eh, vdev)) goto drop_nbuf; } else { goto drop_nbuf; } } /* * Drop packets in this path if cce_match is found. Packets will come * in following path depending on whether tidQ is setup. * 1. If tidQ is setup: WIFILI_HAL_RX_WBM_REO_PSH_RSN_ROUTE and * cce_match = 1 * Packets with WIFILI_HAL_RX_WBM_REO_PSH_RSN_ROUTE are already * dropped. * 2. If tidQ is not setup: WIFILI_HAL_RX_WBM_REO_PSH_RSN_ERROR and * cce_match = 1 * These packets need to be dropped and should not get delivered * to stack. */ if (qdf_unlikely(dp_rx_err_cce_drop(soc, vdev, nbuf, rx_tlv_hdr))) goto drop_nbuf; /* * In extap mode if the received packet matches with mld mac address * drop it. For non IP packets conversion might not be possible * due to that MEC entry will not be updated, resulting loopback. */ if (qdf_unlikely(check_extap_multicast_loopback(vdev, eh->ether_shost))) { DP_PEER_PER_PKT_STATS_INC_PKT(txrx_peer, rx.mec_drop, 1, qdf_nbuf_len(nbuf), link_id); goto drop_nbuf; } if (qdf_unlikely(vdev->rx_decap_type == htt_cmn_pkt_type_raw)) { qdf_nbuf_set_raw_frame(nbuf, 1); qdf_nbuf_set_next(nbuf, NULL); dp_rx_deliver_raw(vdev, nbuf, txrx_peer, link_id); } else { enh_flag = vdev->pdev->enhanced_stats_en; qdf_nbuf_set_next(nbuf, NULL); DP_PEER_TO_STACK_INCC_PKT(txrx_peer, 1, qdf_nbuf_len(nbuf), enh_flag); DP_PEER_PER_PKT_STATS_INC_PKT(txrx_peer, rx.rx_success, 1, qdf_nbuf_len(nbuf), link_id); /* * Update the protocol tag in SKB based on * CCE metadata */ dp_rx_update_protocol_tag(soc, vdev, nbuf, rx_tlv_hdr, EXCEPTION_DEST_RING_ID, true, true); /* Update the flow tag in SKB based on FSE metadata */ dp_rx_update_flow_tag(soc, vdev, nbuf, rx_tlv_hdr, true); if (qdf_unlikely(hal_rx_msdu_end_da_is_mcbc_get( soc->hal_soc, rx_tlv_hdr) && (vdev->rx_decap_type == htt_cmn_pkt_type_ethernet))) { DP_PEER_MC_INCC_PKT(txrx_peer, 1, qdf_nbuf_len(nbuf), enh_flag, link_id); if (QDF_IS_ADDR_BROADCAST(eh->ether_dhost)) DP_PEER_BC_INCC_PKT(txrx_peer, 1, qdf_nbuf_len(nbuf), enh_flag, link_id); } else { DP_PEER_UC_INCC_PKT(txrx_peer, 1, qdf_nbuf_len(nbuf), enh_flag, link_id); } qdf_nbuf_set_exc_frame(nbuf, 1); if (qdf_unlikely(vdev->multipass_en)) { if (dp_rx_multipass_process(txrx_peer, nbuf, tid) == false) { DP_PEER_PER_PKT_STATS_INC (txrx_peer, rx.multipass_rx_pkt_drop, 1, link_id); goto drop_nbuf; } } dp_rx_deliver_to_osif_stack(soc, vdev, txrx_peer, nbuf, NULL, is_eapol); } return QDF_STATUS_SUCCESS; drop_nbuf: dp_rx_nbuf_free(nbuf); return QDF_STATUS_E_FAILURE; }