| /* |
| * Copyright (c) 2016-2019 The Linux Foundation. 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 "hal_hw_headers.h" |
| #include "dp_types.h" |
| #include "dp_rx.h" |
| #include "dp_peer.h" |
| #include "hal_rx.h" |
| #include "hal_api.h" |
| #include "qdf_nbuf.h" |
| #ifdef MESH_MODE_SUPPORT |
| #include "if_meta_hdr.h" |
| #endif |
| #include "dp_internal.h" |
| #include "dp_rx_mon.h" |
| #include "dp_ipa.h" |
| #ifdef FEATURE_WDS |
| #include "dp_txrx_wds.h" |
| #endif |
| |
| #ifdef ATH_RX_PRI_SAVE |
| #define DP_RX_TID_SAVE(_nbuf, _tid) \ |
| (qdf_nbuf_set_priority(_nbuf, _tid)) |
| #else |
| #define DP_RX_TID_SAVE(_nbuf, _tid) |
| #endif |
| |
| #ifdef DP_RX_DISABLE_NDI_MDNS_FORWARDING |
| static inline |
| bool dp_rx_check_ndi_mdns_fwding(struct dp_peer *ta_peer, qdf_nbuf_t nbuf) |
| { |
| if (ta_peer->vdev->opmode == wlan_op_mode_ndi && |
| qdf_nbuf_is_ipv6_mdns_pkt(nbuf)) { |
| DP_STATS_INC(ta_peer, rx.intra_bss.mdns_no_fwd, 1); |
| return false; |
| } |
| return true; |
| } |
| #else |
| static inline |
| bool dp_rx_check_ndi_mdns_fwding(struct dp_peer *ta_peer, qdf_nbuf_t nbuf) |
| { |
| return true; |
| } |
| #endif |
| static inline bool dp_rx_check_ap_bridge(struct dp_vdev *vdev) |
| { |
| return vdev->ap_bridge_enabled; |
| } |
| |
| #ifdef DUP_RX_DESC_WAR |
| void dp_rx_dump_info_and_assert(struct dp_soc *soc, |
| hal_ring_handle_t hal_ring, |
| hal_ring_desc_t ring_desc, |
| struct dp_rx_desc *rx_desc) |
| { |
| void *hal_soc = soc->hal_soc; |
| |
| hal_srng_dump_ring_desc(hal_soc, hal_ring, ring_desc); |
| dp_rx_desc_dump(rx_desc); |
| } |
| #else |
| void dp_rx_dump_info_and_assert(struct dp_soc *soc, |
| hal_ring_handle_t hal_ring_hdl, |
| hal_ring_desc_t ring_desc, |
| struct dp_rx_desc *rx_desc) |
| { |
| hal_soc_handle_t hal_soc = soc->hal_soc; |
| |
| dp_rx_desc_dump(rx_desc); |
| hal_srng_dump_ring_desc(hal_soc, hal_ring_hdl, ring_desc); |
| hal_srng_dump_ring(hal_soc, hal_ring_hdl); |
| qdf_assert_always(0); |
| } |
| #endif |
| |
| /* |
| * dp_rx_buffers_replenish() - replenish rxdma ring with rx nbufs |
| * called during dp rx initialization |
| * and at the end of dp_rx_process. |
| * |
| * @soc: core txrx main context |
| * @mac_id: mac_id which is one of 3 mac_ids |
| * @dp_rxdma_srng: dp rxdma circular ring |
| * @rx_desc_pool: Pointer to free Rx descriptor pool |
| * @num_req_buffers: number of buffer to be replenished |
| * @desc_list: list of descs if called from dp_rx_process |
| * or NULL during dp rx initialization or out of buffer |
| * interrupt. |
| * @tail: tail of descs list |
| * Return: return success or failure |
| */ |
| QDF_STATUS dp_rx_buffers_replenish(struct dp_soc *dp_soc, uint32_t mac_id, |
| struct dp_srng *dp_rxdma_srng, |
| struct rx_desc_pool *rx_desc_pool, |
| uint32_t num_req_buffers, |
| union dp_rx_desc_list_elem_t **desc_list, |
| union dp_rx_desc_list_elem_t **tail) |
| { |
| uint32_t num_alloc_desc; |
| uint16_t num_desc_to_free = 0; |
| struct dp_pdev *dp_pdev = dp_get_pdev_for_mac_id(dp_soc, mac_id); |
| uint32_t num_entries_avail; |
| uint32_t count; |
| int sync_hw_ptr = 1; |
| qdf_dma_addr_t paddr; |
| qdf_nbuf_t rx_netbuf; |
| void *rxdma_ring_entry; |
| union dp_rx_desc_list_elem_t *next; |
| QDF_STATUS ret; |
| |
| void *rxdma_srng; |
| |
| rxdma_srng = dp_rxdma_srng->hal_srng; |
| |
| if (!rxdma_srng) { |
| QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_DEBUG, |
| "rxdma srng not initialized"); |
| DP_STATS_INC(dp_pdev, replenish.rxdma_err, num_req_buffers); |
| return QDF_STATUS_E_FAILURE; |
| } |
| |
| QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_DEBUG, |
| "requested %d buffers for replenish", num_req_buffers); |
| |
| hal_srng_access_start(dp_soc->hal_soc, rxdma_srng); |
| num_entries_avail = hal_srng_src_num_avail(dp_soc->hal_soc, |
| rxdma_srng, |
| sync_hw_ptr); |
| |
| QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_DEBUG, |
| "no of available entries in rxdma ring: %d", |
| num_entries_avail); |
| |
| if (!(*desc_list) && (num_entries_avail > |
| ((dp_rxdma_srng->num_entries * 3) / 4))) { |
| num_req_buffers = num_entries_avail; |
| } else if (num_entries_avail < num_req_buffers) { |
| num_desc_to_free = num_req_buffers - num_entries_avail; |
| num_req_buffers = num_entries_avail; |
| } |
| |
| if (qdf_unlikely(!num_req_buffers)) { |
| num_desc_to_free = num_req_buffers; |
| hal_srng_access_end(dp_soc->hal_soc, rxdma_srng); |
| goto free_descs; |
| } |
| |
| /* |
| * if desc_list is NULL, allocate the descs from freelist |
| */ |
| if (!(*desc_list)) { |
| num_alloc_desc = dp_rx_get_free_desc_list(dp_soc, mac_id, |
| rx_desc_pool, |
| num_req_buffers, |
| desc_list, |
| tail); |
| |
| if (!num_alloc_desc) { |
| QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_ERROR, |
| "no free rx_descs in freelist"); |
| DP_STATS_INC(dp_pdev, err.desc_alloc_fail, |
| num_req_buffers); |
| hal_srng_access_end(dp_soc->hal_soc, rxdma_srng); |
| return QDF_STATUS_E_NOMEM; |
| } |
| |
| QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_DEBUG, |
| "%d rx desc allocated", num_alloc_desc); |
| num_req_buffers = num_alloc_desc; |
| } |
| |
| |
| count = 0; |
| |
| while (count < num_req_buffers) { |
| rx_netbuf = qdf_nbuf_alloc(dp_soc->osdev, |
| RX_BUFFER_SIZE, |
| RX_BUFFER_RESERVATION, |
| RX_BUFFER_ALIGNMENT, |
| FALSE); |
| |
| if (qdf_unlikely(!rx_netbuf)) { |
| DP_STATS_INC(dp_pdev, replenish.nbuf_alloc_fail, 1); |
| break; |
| } |
| |
| ret = qdf_nbuf_map_single(dp_soc->osdev, rx_netbuf, |
| QDF_DMA_FROM_DEVICE); |
| if (qdf_unlikely(QDF_IS_STATUS_ERROR(ret))) { |
| qdf_nbuf_free(rx_netbuf); |
| DP_STATS_INC(dp_pdev, replenish.map_err, 1); |
| continue; |
| } |
| |
| paddr = qdf_nbuf_get_frag_paddr(rx_netbuf, 0); |
| |
| dp_ipa_handle_rx_buf_smmu_mapping(dp_soc, rx_netbuf, true); |
| /* |
| * check if the physical address of nbuf->data is |
| * less then 0x50000000 then free the nbuf and try |
| * allocating new nbuf. We can try for 100 times. |
| * this is a temp WAR till we fix it properly. |
| */ |
| ret = check_x86_paddr(dp_soc, &rx_netbuf, &paddr, dp_pdev); |
| if (ret == QDF_STATUS_E_FAILURE) { |
| DP_STATS_INC(dp_pdev, replenish.x86_fail, 1); |
| break; |
| } |
| |
| count++; |
| |
| rxdma_ring_entry = hal_srng_src_get_next(dp_soc->hal_soc, |
| rxdma_srng); |
| qdf_assert_always(rxdma_ring_entry); |
| |
| next = (*desc_list)->next; |
| |
| dp_rx_desc_prep(&((*desc_list)->rx_desc), rx_netbuf); |
| |
| /* rx_desc.in_use should be zero at this time*/ |
| qdf_assert_always((*desc_list)->rx_desc.in_use == 0); |
| |
| (*desc_list)->rx_desc.in_use = 1; |
| |
| dp_verbose_debug("rx_netbuf=%pK, buf=%pK, paddr=0x%llx, cookie=%d", |
| rx_netbuf, qdf_nbuf_data(rx_netbuf), |
| (unsigned long long)paddr, |
| (*desc_list)->rx_desc.cookie); |
| |
| hal_rxdma_buff_addr_info_set(rxdma_ring_entry, paddr, |
| (*desc_list)->rx_desc.cookie, |
| rx_desc_pool->owner); |
| |
| *desc_list = next; |
| |
| } |
| |
| hal_srng_access_end(dp_soc->hal_soc, rxdma_srng); |
| |
| dp_verbose_debug("replenished buffers %d, rx desc added back to free list %u", |
| count, num_desc_to_free); |
| |
| DP_STATS_INC_PKT(dp_pdev, replenish.pkts, count, |
| (RX_BUFFER_SIZE * count)); |
| |
| free_descs: |
| DP_STATS_INC(dp_pdev, buf_freelist, num_desc_to_free); |
| /* |
| * add any available free desc back to the free list |
| */ |
| if (*desc_list) |
| dp_rx_add_desc_list_to_free_list(dp_soc, desc_list, tail, |
| mac_id, rx_desc_pool); |
| |
| return QDF_STATUS_SUCCESS; |
| } |
| |
| /* |
| * dp_rx_deliver_raw() - process RAW mode pkts and hand over the |
| * pkts to RAW mode simulation to |
| * decapsulate the pkt. |
| * |
| * @vdev: vdev on which RAW mode is enabled |
| * @nbuf_list: list of RAW pkts to process |
| * @peer: peer object from which the pkt is rx |
| * |
| * Return: void |
| */ |
| void |
| dp_rx_deliver_raw(struct dp_vdev *vdev, qdf_nbuf_t nbuf_list, |
| struct dp_peer *peer) |
| { |
| qdf_nbuf_t deliver_list_head = NULL; |
| qdf_nbuf_t deliver_list_tail = NULL; |
| qdf_nbuf_t nbuf; |
| |
| nbuf = nbuf_list; |
| while (nbuf) { |
| qdf_nbuf_t next = qdf_nbuf_next(nbuf); |
| |
| DP_RX_LIST_APPEND(deliver_list_head, deliver_list_tail, nbuf); |
| |
| DP_STATS_INC(vdev->pdev, rx_raw_pkts, 1); |
| DP_STATS_INC_PKT(peer, rx.raw, 1, qdf_nbuf_len(nbuf)); |
| /* |
| * reset the chfrag_start and chfrag_end bits in nbuf cb |
| * as this is a non-amsdu pkt and RAW mode simulation expects |
| * these bit s to be 0 for non-amsdu pkt. |
| */ |
| if (qdf_nbuf_is_rx_chfrag_start(nbuf) && |
| qdf_nbuf_is_rx_chfrag_end(nbuf)) { |
| qdf_nbuf_set_rx_chfrag_start(nbuf, 0); |
| qdf_nbuf_set_rx_chfrag_end(nbuf, 0); |
| } |
| |
| nbuf = next; |
| } |
| |
| vdev->osif_rsim_rx_decap(vdev->osif_vdev, &deliver_list_head, |
| &deliver_list_tail, (struct cdp_peer*) peer); |
| |
| vdev->osif_rx(vdev->osif_vdev, deliver_list_head); |
| } |
| |
| |
| #ifdef DP_LFR |
| /* |
| * In case of LFR, data of a new peer might be sent up |
| * even before peer is added. |
| */ |
| static inline struct dp_vdev * |
| dp_get_vdev_from_peer(struct dp_soc *soc, |
| uint16_t peer_id, |
| struct dp_peer *peer, |
| struct hal_rx_mpdu_desc_info mpdu_desc_info) |
| { |
| struct dp_vdev *vdev; |
| uint8_t vdev_id; |
| |
| if (unlikely(!peer)) { |
| if (peer_id != HTT_INVALID_PEER) { |
| vdev_id = DP_PEER_METADATA_ID_GET( |
| mpdu_desc_info.peer_meta_data); |
| QDF_TRACE(QDF_MODULE_ID_DP, |
| QDF_TRACE_LEVEL_DEBUG, |
| FL("PeerID %d not found use vdevID %d"), |
| peer_id, vdev_id); |
| vdev = dp_get_vdev_from_soc_vdev_id_wifi3(soc, |
| vdev_id); |
| } else { |
| QDF_TRACE(QDF_MODULE_ID_DP, |
| QDF_TRACE_LEVEL_DEBUG, |
| FL("Invalid PeerID %d"), |
| peer_id); |
| return NULL; |
| } |
| } else { |
| vdev = peer->vdev; |
| } |
| return vdev; |
| } |
| #else |
| static inline struct dp_vdev * |
| dp_get_vdev_from_peer(struct dp_soc *soc, |
| uint16_t peer_id, |
| struct dp_peer *peer, |
| struct hal_rx_mpdu_desc_info mpdu_desc_info) |
| { |
| if (unlikely(!peer)) { |
| QDF_TRACE(QDF_MODULE_ID_DP, |
| QDF_TRACE_LEVEL_DEBUG, |
| FL("Peer not found for peerID %d"), |
| peer_id); |
| return NULL; |
| } else { |
| return peer->vdev; |
| } |
| } |
| #endif |
| |
| #ifndef FEATURE_WDS |
| static void |
| dp_rx_da_learn(struct dp_soc *soc, |
| uint8_t *rx_tlv_hdr, |
| struct dp_peer *ta_peer, |
| qdf_nbuf_t nbuf) |
| { |
| } |
| #endif |
| /* |
| * dp_rx_intrabss_fwd() - Implements the Intra-BSS forwarding logic |
| * |
| * @soc: core txrx main context |
| * @ta_peer : source peer entry |
| * @rx_tlv_hdr : start address of rx tlvs |
| * @nbuf : nbuf that has to be intrabss forwarded |
| * |
| * Return: bool: true if it is forwarded else false |
| */ |
| static bool |
| dp_rx_intrabss_fwd(struct dp_soc *soc, |
| struct dp_peer *ta_peer, |
| uint8_t *rx_tlv_hdr, |
| qdf_nbuf_t nbuf) |
| { |
| uint16_t da_idx; |
| uint16_t len; |
| uint8_t is_frag; |
| struct dp_peer *da_peer; |
| struct dp_ast_entry *ast_entry; |
| qdf_nbuf_t nbuf_copy; |
| 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]; |
| |
| /* check if the destination peer is available in peer table |
| * and also check if the source peer and destination peer |
| * belong to the same vap and destination peer is not bss peer. |
| */ |
| |
| if ((qdf_nbuf_is_da_valid(nbuf) && !qdf_nbuf_is_da_mcbc(nbuf))) { |
| da_idx = hal_rx_msdu_end_da_idx_get(soc->hal_soc, rx_tlv_hdr); |
| |
| ast_entry = soc->ast_table[da_idx]; |
| if (!ast_entry) |
| return false; |
| |
| if (ast_entry->type == CDP_TXRX_AST_TYPE_DA) { |
| ast_entry->is_active = TRUE; |
| return false; |
| } |
| |
| da_peer = ast_entry->peer; |
| |
| if (!da_peer) |
| return false; |
| /* TA peer cannot be same as peer(DA) on which AST is present |
| * this indicates a change in topology and that AST entries |
| * are yet to be updated. |
| */ |
| if (da_peer == ta_peer) |
| return false; |
| |
| if (da_peer->vdev == ta_peer->vdev && !da_peer->bss_peer) { |
| len = QDF_NBUF_CB_RX_PKT_LEN(nbuf); |
| is_frag = qdf_nbuf_is_frag(nbuf); |
| memset(nbuf->cb, 0x0, sizeof(nbuf->cb)); |
| |
| /* linearize the nbuf just before we send to |
| * dp_tx_send() |
| */ |
| if (qdf_unlikely(is_frag)) { |
| if (qdf_nbuf_linearize(nbuf) == -ENOMEM) |
| return false; |
| |
| nbuf = qdf_nbuf_unshare(nbuf); |
| if (!nbuf) { |
| DP_STATS_INC_PKT(ta_peer, |
| rx.intra_bss.fail, |
| 1, |
| len); |
| /* return true even though the pkt is |
| * not forwarded. Basically skb_unshare |
| * failed and we want to continue with |
| * next nbuf. |
| */ |
| tid_stats->fail_cnt[INTRABSS_DROP]++; |
| return true; |
| } |
| } |
| |
| if (!dp_tx_send(dp_vdev_to_cdp_vdev(ta_peer->vdev), |
| nbuf)) { |
| DP_STATS_INC_PKT(ta_peer, rx.intra_bss.pkts, 1, |
| len); |
| return true; |
| } else { |
| DP_STATS_INC_PKT(ta_peer, rx.intra_bss.fail, 1, |
| len); |
| tid_stats->fail_cnt[INTRABSS_DROP]++; |
| return false; |
| } |
| } |
| } |
| /* 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. |
| */ |
| else if (qdf_unlikely((qdf_nbuf_is_da_mcbc(nbuf) && |
| !ta_peer->bss_peer))) { |
| if (!dp_rx_check_ndi_mdns_fwding(ta_peer, nbuf)) |
| goto end; |
| |
| nbuf_copy = qdf_nbuf_copy(nbuf); |
| if (!nbuf_copy) |
| goto end; |
| |
| len = QDF_NBUF_CB_RX_PKT_LEN(nbuf); |
| memset(nbuf_copy->cb, 0x0, sizeof(nbuf_copy->cb)); |
| |
| /* Set cb->ftype to intrabss FWD */ |
| qdf_nbuf_set_tx_ftype(nbuf_copy, CB_FTYPE_INTRABSS_FWD); |
| if (dp_tx_send(dp_vdev_to_cdp_vdev(ta_peer->vdev), nbuf_copy)) { |
| DP_STATS_INC_PKT(ta_peer, rx.intra_bss.fail, 1, len); |
| tid_stats->fail_cnt[INTRABSS_DROP]++; |
| qdf_nbuf_free(nbuf_copy); |
| } else { |
| DP_STATS_INC_PKT(ta_peer, rx.intra_bss.pkts, 1, len); |
| tid_stats->intrabss_cnt++; |
| } |
| } |
| |
| end: |
| /* return false as we have to still send the original pkt |
| * up the stack |
| */ |
| return false; |
| } |
| |
| #ifdef MESH_MODE_SUPPORT |
| |
| /** |
| * dp_rx_fill_mesh_stats() - Fills the mesh per packet receive stats |
| * |
| * @vdev: DP Virtual device handle |
| * @nbuf: Buffer pointer |
| * @rx_tlv_hdr: start of rx tlv header |
| * @peer: pointer to peer |
| * |
| * This function allocated memory for mesh receive stats and fill the |
| * required stats. Stores the memory address in skb cb. |
| * |
| * Return: void |
| */ |
| |
| void dp_rx_fill_mesh_stats(struct dp_vdev *vdev, qdf_nbuf_t nbuf, |
| uint8_t *rx_tlv_hdr, struct dp_peer *peer) |
| { |
| struct mesh_recv_hdr_s *rx_info = NULL; |
| uint32_t pkt_type; |
| uint32_t nss; |
| uint32_t rate_mcs; |
| uint32_t bw; |
| |
| /* fill recv mesh stats */ |
| rx_info = qdf_mem_malloc(sizeof(struct mesh_recv_hdr_s)); |
| |
| /* upper layers are resposible to free this memory */ |
| |
| if (!rx_info) { |
| QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_ERROR, |
| "Memory allocation failed for mesh rx stats"); |
| DP_STATS_INC(vdev->pdev, mesh_mem_alloc, 1); |
| return; |
| } |
| |
| rx_info->rs_flags = MESH_RXHDR_VER1; |
| if (qdf_nbuf_is_rx_chfrag_start(nbuf)) |
| rx_info->rs_flags |= MESH_RX_FIRST_MSDU; |
| |
| if (qdf_nbuf_is_rx_chfrag_end(nbuf)) |
| rx_info->rs_flags |= MESH_RX_LAST_MSDU; |
| |
| if (hal_rx_attn_msdu_get_is_decrypted(rx_tlv_hdr)) { |
| rx_info->rs_flags |= MESH_RX_DECRYPTED; |
| rx_info->rs_keyix = hal_rx_msdu_get_keyid(rx_tlv_hdr); |
| if (vdev->osif_get_key) |
| vdev->osif_get_key(vdev->osif_vdev, |
| &rx_info->rs_decryptkey[0], |
| &peer->mac_addr.raw[0], |
| rx_info->rs_keyix); |
| } |
| |
| rx_info->rs_rssi = hal_rx_msdu_start_get_rssi(rx_tlv_hdr); |
| rx_info->rs_channel = hal_rx_msdu_start_get_freq(rx_tlv_hdr); |
| pkt_type = hal_rx_msdu_start_get_pkt_type(rx_tlv_hdr); |
| rate_mcs = hal_rx_msdu_start_rate_mcs_get(rx_tlv_hdr); |
| bw = hal_rx_msdu_start_bw_get(rx_tlv_hdr); |
| nss = hal_rx_msdu_start_nss_get(vdev->pdev->soc->hal_soc, rx_tlv_hdr); |
| rx_info->rs_ratephy1 = rate_mcs | (nss << 0x8) | (pkt_type << 16) | |
| (bw << 24); |
| |
| qdf_nbuf_set_rx_fctx_type(nbuf, (void *)rx_info, CB_FTYPE_MESH_RX_INFO); |
| |
| QDF_TRACE(QDF_MODULE_ID_TXRX, QDF_TRACE_LEVEL_INFO_MED, |
| FL("Mesh rx stats: flags %x, rssi %x, chn %x, rate %x, kix %x"), |
| rx_info->rs_flags, |
| rx_info->rs_rssi, |
| rx_info->rs_channel, |
| rx_info->rs_ratephy1, |
| rx_info->rs_keyix); |
| |
| } |
| |
| /** |
| * dp_rx_filter_mesh_packets() - Filters mesh unwanted packets |
| * |
| * @vdev: DP Virtual device handle |
| * @nbuf: Buffer pointer |
| * @rx_tlv_hdr: start of rx tlv header |
| * |
| * This checks if the received packet is matching any filter out |
| * catogery and and drop the packet if it matches. |
| * |
| * Return: status(0 indicates drop, 1 indicate to no drop) |
| */ |
| |
| QDF_STATUS dp_rx_filter_mesh_packets(struct dp_vdev *vdev, qdf_nbuf_t nbuf, |
| uint8_t *rx_tlv_hdr) |
| { |
| union dp_align_mac_addr mac_addr; |
| struct dp_soc *soc = vdev->pdev->soc; |
| |
| if (qdf_unlikely(vdev->mesh_rx_filter)) { |
| if (vdev->mesh_rx_filter & MESH_FILTER_OUT_FROMDS) |
| if (hal_rx_mpdu_get_fr_ds(soc->hal_soc, |
| rx_tlv_hdr)) |
| return QDF_STATUS_SUCCESS; |
| |
| if (vdev->mesh_rx_filter & MESH_FILTER_OUT_TODS) |
| if (hal_rx_mpdu_get_to_ds(soc->hal_soc, |
| rx_tlv_hdr)) |
| return QDF_STATUS_SUCCESS; |
| |
| if (vdev->mesh_rx_filter & MESH_FILTER_OUT_NODS) |
| if (!hal_rx_mpdu_get_fr_ds(soc->hal_soc, |
| rx_tlv_hdr) && |
| !hal_rx_mpdu_get_to_ds(soc->hal_soc, |
| rx_tlv_hdr)) |
| return QDF_STATUS_SUCCESS; |
| |
| if (vdev->mesh_rx_filter & MESH_FILTER_OUT_RA) { |
| if (hal_rx_mpdu_get_addr1(soc->hal_soc, |
| rx_tlv_hdr, |
| &mac_addr.raw[0])) |
| return QDF_STATUS_E_FAILURE; |
| |
| if (!qdf_mem_cmp(&mac_addr.raw[0], |
| &vdev->mac_addr.raw[0], |
| QDF_MAC_ADDR_SIZE)) |
| return QDF_STATUS_SUCCESS; |
| } |
| |
| if (vdev->mesh_rx_filter & MESH_FILTER_OUT_TA) { |
| if (hal_rx_mpdu_get_addr2(soc->hal_soc, |
| rx_tlv_hdr, |
| &mac_addr.raw[0])) |
| return QDF_STATUS_E_FAILURE; |
| |
| if (!qdf_mem_cmp(&mac_addr.raw[0], |
| &vdev->mac_addr.raw[0], |
| QDF_MAC_ADDR_SIZE)) |
| return QDF_STATUS_SUCCESS; |
| } |
| } |
| |
| return QDF_STATUS_E_FAILURE; |
| } |
| |
| #else |
| void dp_rx_fill_mesh_stats(struct dp_vdev *vdev, qdf_nbuf_t nbuf, |
| uint8_t *rx_tlv_hdr, struct dp_peer *peer) |
| { |
| } |
| |
| QDF_STATUS dp_rx_filter_mesh_packets(struct dp_vdev *vdev, qdf_nbuf_t nbuf, |
| uint8_t *rx_tlv_hdr) |
| { |
| return QDF_STATUS_E_FAILURE; |
| } |
| |
| #endif |
| |
| #ifdef FEATURE_NAC_RSSI |
| /** |
| * dp_rx_nac_filter(): Function to perform filtering of non-associated |
| * clients |
| * @pdev: DP pdev handle |
| * @rx_pkt_hdr: Rx packet Header |
| * |
| * return: dp_vdev* |
| */ |
| static |
| struct dp_vdev *dp_rx_nac_filter(struct dp_pdev *pdev, |
| uint8_t *rx_pkt_hdr) |
| { |
| struct ieee80211_frame *wh; |
| struct dp_neighbour_peer *peer = NULL; |
| |
| wh = (struct ieee80211_frame *)rx_pkt_hdr; |
| |
| if ((wh->i_fc[1] & IEEE80211_FC1_DIR_MASK) != IEEE80211_FC1_DIR_TODS) |
| return NULL; |
| |
| qdf_spin_lock_bh(&pdev->neighbour_peer_mutex); |
| TAILQ_FOREACH(peer, &pdev->neighbour_peers_list, |
| neighbour_peer_list_elem) { |
| if (qdf_mem_cmp(&peer->neighbour_peers_macaddr.raw[0], |
| wh->i_addr2, QDF_MAC_ADDR_SIZE) == 0) { |
| QDF_TRACE( |
| QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_DEBUG, |
| FL("NAC configuration matched for mac-%2x:%2x:%2x:%2x:%2x:%2x"), |
| peer->neighbour_peers_macaddr.raw[0], |
| peer->neighbour_peers_macaddr.raw[1], |
| peer->neighbour_peers_macaddr.raw[2], |
| peer->neighbour_peers_macaddr.raw[3], |
| peer->neighbour_peers_macaddr.raw[4], |
| peer->neighbour_peers_macaddr.raw[5]); |
| |
| qdf_spin_unlock_bh(&pdev->neighbour_peer_mutex); |
| |
| return pdev->monitor_vdev; |
| } |
| } |
| qdf_spin_unlock_bh(&pdev->neighbour_peer_mutex); |
| |
| return NULL; |
| } |
| |
| /** |
| * dp_rx_process_invalid_peer(): Function to pass invalid peer list to umac |
| * @soc: DP SOC handle |
| * @mpdu: mpdu for which peer is invalid |
| * @mac_id: mac_id which is one of 3 mac_ids(Assuming mac_id and |
| * pool_id has same mapping) |
| * |
| * return: integer type |
| */ |
| uint8_t dp_rx_process_invalid_peer(struct dp_soc *soc, qdf_nbuf_t mpdu, |
| uint8_t mac_id) |
| { |
| struct dp_invalid_peer_msg msg; |
| struct dp_vdev *vdev = NULL; |
| struct dp_pdev *pdev = NULL; |
| struct ieee80211_frame *wh; |
| qdf_nbuf_t curr_nbuf, next_nbuf; |
| uint8_t *rx_tlv_hdr = qdf_nbuf_data(mpdu); |
| uint8_t *rx_pkt_hdr = hal_rx_pkt_hdr_get(rx_tlv_hdr); |
| |
| rx_pkt_hdr = hal_rx_pkt_hdr_get(rx_tlv_hdr); |
| |
| if (!HAL_IS_DECAP_FORMAT_RAW(soc->hal_soc, rx_tlv_hdr)) { |
| QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_DEBUG, |
| "Drop decapped frames"); |
| goto free; |
| } |
| |
| wh = (struct ieee80211_frame *)rx_pkt_hdr; |
| |
| if (!DP_FRAME_IS_DATA(wh)) { |
| QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_DEBUG, |
| "NAWDS valid only for data frames"); |
| goto free; |
| } |
| |
| if (qdf_nbuf_len(mpdu) < sizeof(struct ieee80211_frame)) { |
| QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_ERROR, |
| "Invalid nbuf length"); |
| goto free; |
| } |
| |
| pdev = dp_get_pdev_for_mac_id(soc, mac_id); |
| |
| if (!pdev || qdf_unlikely(pdev->is_pdev_down)) { |
| QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_ERROR, |
| "PDEV %s", !pdev ? "not found" : "down"); |
| goto free; |
| } |
| |
| if (pdev->filter_neighbour_peers) { |
| /* Next Hop scenario not yet handle */ |
| vdev = dp_rx_nac_filter(pdev, rx_pkt_hdr); |
| if (vdev) { |
| dp_rx_mon_deliver(soc, pdev->pdev_id, |
| pdev->invalid_peer_head_msdu, |
| pdev->invalid_peer_tail_msdu); |
| |
| pdev->invalid_peer_head_msdu = NULL; |
| pdev->invalid_peer_tail_msdu = NULL; |
| |
| return 0; |
| } |
| } |
| |
| TAILQ_FOREACH(vdev, &pdev->vdev_list, vdev_list_elem) { |
| |
| if (qdf_mem_cmp(wh->i_addr1, vdev->mac_addr.raw, |
| QDF_MAC_ADDR_SIZE) == 0) { |
| goto out; |
| } |
| } |
| |
| if (!vdev) { |
| QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_ERROR, |
| "VDEV not found"); |
| goto free; |
| } |
| |
| out: |
| msg.wh = wh; |
| qdf_nbuf_pull_head(mpdu, RX_PKT_TLVS_LEN); |
| msg.nbuf = mpdu; |
| msg.vdev_id = vdev->vdev_id; |
| if (pdev->soc->cdp_soc.ol_ops->rx_invalid_peer) |
| pdev->soc->cdp_soc.ol_ops->rx_invalid_peer(pdev->ctrl_pdev, |
| &msg); |
| |
| free: |
| /* Drop and free packet */ |
| curr_nbuf = mpdu; |
| while (curr_nbuf) { |
| next_nbuf = qdf_nbuf_next(curr_nbuf); |
| qdf_nbuf_free(curr_nbuf); |
| curr_nbuf = next_nbuf; |
| } |
| |
| return 0; |
| } |
| |
| /** |
| * dp_rx_process_invalid_peer_wrapper(): Function to wrap invalid peer handler |
| * @soc: DP SOC handle |
| * @mpdu: mpdu for which peer is invalid |
| * @mpdu_done: if an mpdu is completed |
| * @mac_id: mac_id which is one of 3 mac_ids(Assuming mac_id and |
| * pool_id has same mapping) |
| * |
| * return: integer type |
| */ |
| void dp_rx_process_invalid_peer_wrapper(struct dp_soc *soc, |
| qdf_nbuf_t mpdu, bool mpdu_done, |
| uint8_t mac_id) |
| { |
| /* Only trigger the process when mpdu is completed */ |
| if (mpdu_done) |
| dp_rx_process_invalid_peer(soc, mpdu, mac_id); |
| } |
| #else |
| uint8_t dp_rx_process_invalid_peer(struct dp_soc *soc, qdf_nbuf_t mpdu, |
| uint8_t mac_id) |
| { |
| qdf_nbuf_t curr_nbuf, next_nbuf; |
| struct dp_pdev *pdev; |
| struct dp_vdev *vdev = NULL; |
| struct ieee80211_frame *wh; |
| uint8_t *rx_tlv_hdr = qdf_nbuf_data(mpdu); |
| uint8_t *rx_pkt_hdr = hal_rx_pkt_hdr_get(rx_tlv_hdr); |
| |
| wh = (struct ieee80211_frame *)rx_pkt_hdr; |
| |
| if (!DP_FRAME_IS_DATA(wh)) { |
| QDF_TRACE_ERROR_RL(QDF_MODULE_ID_DP, |
| "only for data frames"); |
| goto free; |
| } |
| |
| if (qdf_nbuf_len(mpdu) < sizeof(struct ieee80211_frame)) { |
| QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_ERROR, |
| "Invalid nbuf length"); |
| goto free; |
| } |
| |
| pdev = dp_get_pdev_for_mac_id(soc, mac_id); |
| if (!pdev) { |
| QDF_TRACE(QDF_MODULE_ID_DP, |
| QDF_TRACE_LEVEL_ERROR, |
| "PDEV not found"); |
| goto free; |
| } |
| |
| qdf_spin_lock_bh(&pdev->vdev_list_lock); |
| DP_PDEV_ITERATE_VDEV_LIST(pdev, vdev) { |
| if (qdf_mem_cmp(wh->i_addr1, vdev->mac_addr.raw, |
| QDF_MAC_ADDR_SIZE) == 0) { |
| qdf_spin_unlock_bh(&pdev->vdev_list_lock); |
| goto out; |
| } |
| } |
| qdf_spin_unlock_bh(&pdev->vdev_list_lock); |
| |
| if (!vdev) { |
| QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_ERROR, |
| "VDEV not found"); |
| goto free; |
| } |
| |
| out: |
| if (soc->cdp_soc.ol_ops->rx_invalid_peer) |
| soc->cdp_soc.ol_ops->rx_invalid_peer(vdev->vdev_id, wh); |
| free: |
| /* reset the head and tail pointers */ |
| pdev = dp_get_pdev_for_mac_id(soc, mac_id); |
| if (pdev) { |
| pdev->invalid_peer_head_msdu = NULL; |
| pdev->invalid_peer_tail_msdu = NULL; |
| } |
| |
| /* Drop and free packet */ |
| curr_nbuf = mpdu; |
| while (curr_nbuf) { |
| next_nbuf = qdf_nbuf_next(curr_nbuf); |
| qdf_nbuf_free(curr_nbuf); |
| curr_nbuf = next_nbuf; |
| } |
| |
| return 0; |
| } |
| |
| void dp_rx_process_invalid_peer_wrapper(struct dp_soc *soc, |
| qdf_nbuf_t mpdu, bool mpdu_done, |
| uint8_t mac_id) |
| { |
| /* Process the nbuf */ |
| dp_rx_process_invalid_peer(soc, mpdu, mac_id); |
| } |
| #endif |
| |
| #ifdef RECEIVE_OFFLOAD |
| /** |
| * dp_rx_print_offload_info() - Print offload info from RX TLV |
| * @soc: dp soc handle |
| * @rx_tlv: RX TLV for which offload information is to be printed |
| * |
| * Return: None |
| */ |
| static void dp_rx_print_offload_info(struct dp_soc *soc, uint8_t *rx_tlv) |
| { |
| dp_verbose_debug("----------------------RX DESC LRO/GRO----------------------"); |
| dp_verbose_debug("lro_eligible 0x%x", HAL_RX_TLV_GET_LRO_ELIGIBLE(rx_tlv)); |
| dp_verbose_debug("pure_ack 0x%x", HAL_RX_TLV_GET_TCP_PURE_ACK(rx_tlv)); |
| dp_verbose_debug("chksum 0x%x", hal_rx_tlv_get_tcp_chksum(soc->hal_soc, |
| rx_tlv)); |
| dp_verbose_debug("TCP seq num 0x%x", HAL_RX_TLV_GET_TCP_SEQ(rx_tlv)); |
| dp_verbose_debug("TCP ack num 0x%x", HAL_RX_TLV_GET_TCP_ACK(rx_tlv)); |
| dp_verbose_debug("TCP window 0x%x", HAL_RX_TLV_GET_TCP_WIN(rx_tlv)); |
| dp_verbose_debug("TCP protocol 0x%x", HAL_RX_TLV_GET_TCP_PROTO(rx_tlv)); |
| dp_verbose_debug("TCP offset 0x%x", HAL_RX_TLV_GET_TCP_OFFSET(rx_tlv)); |
| dp_verbose_debug("toeplitz 0x%x", HAL_RX_TLV_GET_FLOW_ID_TOEPLITZ(rx_tlv)); |
| dp_verbose_debug("---------------------------------------------------------"); |
| } |
| |
| /** |
| * dp_rx_fill_gro_info() - Fill GRO info from RX TLV into skb->cb |
| * @soc: DP SOC handle |
| * @rx_tlv: RX TLV received for the msdu |
| * @msdu: msdu for which GRO info needs to be filled |
| * @rx_ol_pkt_cnt: counter to be incremented for GRO eligible packets |
| * |
| * Return: None |
| */ |
| static |
| void dp_rx_fill_gro_info(struct dp_soc *soc, uint8_t *rx_tlv, |
| qdf_nbuf_t msdu, uint32_t *rx_ol_pkt_cnt) |
| { |
| if (!wlan_cfg_is_gro_enabled(soc->wlan_cfg_ctx)) |
| return; |
| |
| /* Filling up RX offload info only for TCP packets */ |
| if (!HAL_RX_TLV_GET_TCP_PROTO(rx_tlv)) |
| return; |
| |
| *rx_ol_pkt_cnt = *rx_ol_pkt_cnt + 1; |
| |
| QDF_NBUF_CB_RX_LRO_ELIGIBLE(msdu) = |
| HAL_RX_TLV_GET_LRO_ELIGIBLE(rx_tlv); |
| QDF_NBUF_CB_RX_TCP_PURE_ACK(msdu) = |
| HAL_RX_TLV_GET_TCP_PURE_ACK(rx_tlv); |
| QDF_NBUF_CB_RX_TCP_CHKSUM(msdu) = |
| hal_rx_tlv_get_tcp_chksum(soc->hal_soc, |
| rx_tlv); |
| QDF_NBUF_CB_RX_TCP_SEQ_NUM(msdu) = |
| HAL_RX_TLV_GET_TCP_SEQ(rx_tlv); |
| QDF_NBUF_CB_RX_TCP_ACK_NUM(msdu) = |
| HAL_RX_TLV_GET_TCP_ACK(rx_tlv); |
| QDF_NBUF_CB_RX_TCP_WIN(msdu) = |
| HAL_RX_TLV_GET_TCP_WIN(rx_tlv); |
| QDF_NBUF_CB_RX_TCP_PROTO(msdu) = |
| HAL_RX_TLV_GET_TCP_PROTO(rx_tlv); |
| QDF_NBUF_CB_RX_IPV6_PROTO(msdu) = |
| HAL_RX_TLV_GET_IPV6(rx_tlv); |
| QDF_NBUF_CB_RX_TCP_OFFSET(msdu) = |
| HAL_RX_TLV_GET_TCP_OFFSET(rx_tlv); |
| QDF_NBUF_CB_RX_FLOW_ID(msdu) = |
| HAL_RX_TLV_GET_FLOW_ID_TOEPLITZ(rx_tlv); |
| |
| dp_rx_print_offload_info(soc, rx_tlv); |
| } |
| #else |
| static void dp_rx_fill_gro_info(struct dp_soc *soc, uint8_t *rx_tlv, |
| qdf_nbuf_t msdu, uint32_t *rx_ol_pkt_cnt) |
| { |
| } |
| #endif /* RECEIVE_OFFLOAD */ |
| |
| /** |
| * dp_rx_adjust_nbuf_len() - set appropriate msdu length in nbuf. |
| * |
| * @nbuf: pointer to msdu. |
| * @mpdu_len: mpdu length |
| * |
| * Return: returns true if nbuf is last msdu of mpdu else retuns false. |
| */ |
| static inline bool dp_rx_adjust_nbuf_len(qdf_nbuf_t nbuf, uint16_t *mpdu_len) |
| { |
| bool last_nbuf; |
| |
| if (*mpdu_len > (RX_BUFFER_SIZE - RX_PKT_TLVS_LEN)) { |
| qdf_nbuf_set_pktlen(nbuf, RX_BUFFER_SIZE); |
| last_nbuf = false; |
| } else { |
| qdf_nbuf_set_pktlen(nbuf, (*mpdu_len + RX_PKT_TLVS_LEN)); |
| last_nbuf = true; |
| } |
| |
| *mpdu_len -= (RX_BUFFER_SIZE - RX_PKT_TLVS_LEN); |
| |
| return last_nbuf; |
| } |
| |
| /** |
| * dp_rx_sg_create() - create a frag_list for MSDUs which are spread across |
| * multiple nbufs. |
| * @nbuf: pointer to the first msdu of an amsdu. |
| * @rx_tlv_hdr: pointer to the start of RX TLV headers. |
| * |
| * |
| * This function implements the creation of RX frag_list for cases |
| * where an MSDU is spread across multiple nbufs. |
| * |
| * Return: returns the head nbuf which contains complete frag_list. |
| */ |
| qdf_nbuf_t dp_rx_sg_create(qdf_nbuf_t nbuf, uint8_t *rx_tlv_hdr) |
| { |
| qdf_nbuf_t parent, next, frag_list; |
| uint16_t frag_list_len = 0; |
| uint16_t mpdu_len; |
| bool last_nbuf; |
| |
| mpdu_len = hal_rx_msdu_start_msdu_len_get(rx_tlv_hdr); |
| /* |
| * this is a case where the complete msdu fits in one single nbuf. |
| * in this case HW sets both start and end bit and we only need to |
| * reset these bits for RAW mode simulator to decap the pkt |
| */ |
| if (qdf_nbuf_is_rx_chfrag_start(nbuf) && |
| qdf_nbuf_is_rx_chfrag_end(nbuf)) { |
| qdf_nbuf_set_pktlen(nbuf, mpdu_len + RX_PKT_TLVS_LEN); |
| qdf_nbuf_pull_head(nbuf, RX_PKT_TLVS_LEN); |
| return nbuf; |
| } |
| |
| /* |
| * This is a case where we have multiple msdus (A-MSDU) spread across |
| * multiple nbufs. here we create a fraglist out of these nbufs. |
| * |
| * the moment we encounter a nbuf with continuation bit set we |
| * know for sure we have an MSDU which is spread across multiple |
| * nbufs. We loop through and reap nbufs till we reach last nbuf. |
| */ |
| parent = nbuf; |
| frag_list = nbuf->next; |
| nbuf = nbuf->next; |
| |
| /* |
| * set the start bit in the first nbuf we encounter with continuation |
| * bit set. This has the proper mpdu length set as it is the first |
| * msdu of the mpdu. this becomes the parent nbuf and the subsequent |
| * nbufs will form the frag_list of the parent nbuf. |
| */ |
| qdf_nbuf_set_rx_chfrag_start(parent, 1); |
| last_nbuf = dp_rx_adjust_nbuf_len(parent, &mpdu_len); |
| |
| /* |
| * this is where we set the length of the fragments which are |
| * associated to the parent nbuf. We iterate through the frag_list |
| * till we hit the last_nbuf of the list. |
| */ |
| do { |
| last_nbuf = dp_rx_adjust_nbuf_len(nbuf, &mpdu_len); |
| qdf_nbuf_pull_head(nbuf, RX_PKT_TLVS_LEN); |
| frag_list_len += qdf_nbuf_len(nbuf); |
| |
| if (last_nbuf) { |
| next = nbuf->next; |
| nbuf->next = NULL; |
| break; |
| } |
| |
| nbuf = nbuf->next; |
| } while (!last_nbuf); |
| |
| qdf_nbuf_set_rx_chfrag_start(nbuf, 0); |
| qdf_nbuf_append_ext_list(parent, frag_list, frag_list_len); |
| parent->next = next; |
| |
| qdf_nbuf_pull_head(parent, RX_PKT_TLVS_LEN); |
| return parent; |
| } |
| |
| /** |
| * dp_rx_compute_delay() - Compute and fill in all timestamps |
| * to pass in correct fields |
| * |
| * @vdev: pdev handle |
| * @tx_desc: tx descriptor |
| * @tid: tid value |
| * Return: none |
| */ |
| void dp_rx_compute_delay(struct dp_vdev *vdev, qdf_nbuf_t nbuf) |
| { |
| uint8_t ring_id = QDF_NBUF_CB_RX_CTX_ID(nbuf); |
| int64_t current_ts = qdf_ktime_to_ms(qdf_ktime_get()); |
| uint32_t to_stack = qdf_nbuf_get_timedelta_ms(nbuf); |
| uint8_t tid = qdf_nbuf_get_tid_val(nbuf); |
| uint32_t interframe_delay = |
| (uint32_t)(current_ts - vdev->prev_rx_deliver_tstamp); |
| |
| dp_update_delay_stats(vdev->pdev, to_stack, tid, |
| CDP_DELAY_STATS_REAP_STACK, ring_id); |
| /* |
| * Update interframe delay stats calculated at deliver_data_ol point. |
| * Value of vdev->prev_rx_deliver_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_rx_deliver_tstamp. |
| */ |
| dp_update_delay_stats(vdev->pdev, interframe_delay, tid, |
| CDP_DELAY_STATS_RX_INTERFRAME, ring_id); |
| vdev->prev_rx_deliver_tstamp = current_ts; |
| } |
| |
| /** |
| * dp_rx_drop_nbuf_list() - drop an nbuf list |
| * @pdev: dp pdev reference |
| * @buf_list: buffer list to be dropepd |
| * |
| * Return: int (number of bufs dropped) |
| */ |
| static inline int dp_rx_drop_nbuf_list(struct dp_pdev *pdev, |
| qdf_nbuf_t buf_list) |
| { |
| struct cdp_tid_rx_stats *stats = NULL; |
| uint8_t tid = 0, ring_id = 0; |
| int num_dropped = 0; |
| qdf_nbuf_t buf, next_buf; |
| |
| buf = buf_list; |
| while (buf) { |
| ring_id = QDF_NBUF_CB_RX_CTX_ID(buf); |
| next_buf = qdf_nbuf_queue_next(buf); |
| tid = qdf_nbuf_get_tid_val(buf); |
| stats = &pdev->stats.tid_stats.tid_rx_stats[ring_id][tid]; |
| stats->fail_cnt[INVALID_PEER_VDEV]++; |
| stats->delivered_to_stack--; |
| qdf_nbuf_free(buf); |
| buf = next_buf; |
| num_dropped++; |
| } |
| |
| return num_dropped; |
| } |
| |
| #ifdef PEER_CACHE_RX_PKTS |
| /** |
| * dp_rx_flush_rx_cached() - flush cached rx frames |
| * @peer: peer |
| * @drop: flag to drop frames or forward to net stack |
| * |
| * Return: None |
| */ |
| void dp_rx_flush_rx_cached(struct dp_peer *peer, bool drop) |
| { |
| struct dp_peer_cached_bufq *bufqi; |
| struct dp_rx_cached_buf *cache_buf = NULL; |
| ol_txrx_rx_fp data_rx = NULL; |
| int num_buff_elem; |
| QDF_STATUS status; |
| |
| if (qdf_atomic_inc_return(&peer->flush_in_progress) > 1) { |
| qdf_atomic_dec(&peer->flush_in_progress); |
| return; |
| } |
| |
| qdf_spin_lock_bh(&peer->peer_info_lock); |
| if (peer->state >= OL_TXRX_PEER_STATE_CONN && peer->vdev->osif_rx) |
| data_rx = peer->vdev->osif_rx; |
| else |
| drop = true; |
| qdf_spin_unlock_bh(&peer->peer_info_lock); |
| |
| bufqi = &peer->bufq_info; |
| |
| qdf_spin_lock_bh(&bufqi->bufq_lock); |
| qdf_list_remove_front(&bufqi->cached_bufq, |
| (qdf_list_node_t **)&cache_buf); |
| while (cache_buf) { |
| num_buff_elem = QDF_NBUF_CB_RX_NUM_ELEMENTS_IN_LIST( |
| cache_buf->buf); |
| bufqi->entries -= num_buff_elem; |
| qdf_spin_unlock_bh(&bufqi->bufq_lock); |
| if (drop) { |
| bufqi->dropped = dp_rx_drop_nbuf_list(peer->vdev->pdev, |
| cache_buf->buf); |
| } else { |
| /* Flush the cached frames to OSIF DEV */ |
| status = data_rx(peer->vdev->osif_vdev, cache_buf->buf); |
| if (status != QDF_STATUS_SUCCESS) |
| bufqi->dropped = dp_rx_drop_nbuf_list( |
| peer->vdev->pdev, |
| cache_buf->buf); |
| } |
| qdf_mem_free(cache_buf); |
| cache_buf = NULL; |
| qdf_spin_lock_bh(&bufqi->bufq_lock); |
| qdf_list_remove_front(&bufqi->cached_bufq, |
| (qdf_list_node_t **)&cache_buf); |
| } |
| qdf_spin_unlock_bh(&bufqi->bufq_lock); |
| qdf_atomic_dec(&peer->flush_in_progress); |
| } |
| |
| /** |
| * dp_rx_enqueue_rx() - cache rx frames |
| * @peer: peer |
| * @rx_buf_list: cache buffer list |
| * |
| * Return: None |
| */ |
| static QDF_STATUS |
| dp_rx_enqueue_rx(struct dp_peer *peer, qdf_nbuf_t rx_buf_list) |
| { |
| struct dp_rx_cached_buf *cache_buf; |
| struct dp_peer_cached_bufq *bufqi = &peer->bufq_info; |
| int num_buff_elem; |
| |
| QDF_TRACE_DEBUG_RL(QDF_MODULE_ID_TXRX, "bufq->curr %d bufq->drops %d", |
| bufqi->entries, bufqi->dropped); |
| |
| if (!peer->valid) { |
| bufqi->dropped = dp_rx_drop_nbuf_list(peer->vdev->pdev, |
| rx_buf_list); |
| return QDF_STATUS_E_INVAL; |
| } |
| |
| qdf_spin_lock_bh(&bufqi->bufq_lock); |
| if (bufqi->entries >= bufqi->thresh) { |
| bufqi->dropped = dp_rx_drop_nbuf_list(peer->vdev->pdev, |
| rx_buf_list); |
| qdf_spin_unlock_bh(&bufqi->bufq_lock); |
| return QDF_STATUS_E_RESOURCES; |
| } |
| qdf_spin_unlock_bh(&bufqi->bufq_lock); |
| |
| num_buff_elem = QDF_NBUF_CB_RX_NUM_ELEMENTS_IN_LIST(rx_buf_list); |
| |
| cache_buf = qdf_mem_malloc_atomic(sizeof(*cache_buf)); |
| if (!cache_buf) { |
| QDF_TRACE(QDF_MODULE_ID_TXRX, QDF_TRACE_LEVEL_ERROR, |
| "Failed to allocate buf to cache rx frames"); |
| bufqi->dropped = dp_rx_drop_nbuf_list(peer->vdev->pdev, |
| rx_buf_list); |
| return QDF_STATUS_E_NOMEM; |
| } |
| |
| cache_buf->buf = rx_buf_list; |
| |
| qdf_spin_lock_bh(&bufqi->bufq_lock); |
| qdf_list_insert_back(&bufqi->cached_bufq, |
| &cache_buf->node); |
| bufqi->entries += num_buff_elem; |
| qdf_spin_unlock_bh(&bufqi->bufq_lock); |
| |
| return QDF_STATUS_SUCCESS; |
| } |
| |
| static inline |
| bool dp_rx_is_peer_cache_bufq_supported(void) |
| { |
| return true; |
| } |
| #else |
| static inline |
| bool dp_rx_is_peer_cache_bufq_supported(void) |
| { |
| return false; |
| } |
| |
| static inline QDF_STATUS |
| dp_rx_enqueue_rx(struct dp_peer *peer, qdf_nbuf_t rx_buf_list) |
| { |
| return QDF_STATUS_SUCCESS; |
| } |
| #endif |
| |
| static inline void dp_rx_deliver_to_stack(struct dp_vdev *vdev, |
| struct dp_peer *peer, |
| qdf_nbuf_t nbuf_head, |
| qdf_nbuf_t nbuf_tail) |
| { |
| /* |
| * highly unlikely to have a vdev without a registered rx |
| * callback function. if so let us free the nbuf_list. |
| */ |
| if (qdf_unlikely(!vdev->osif_rx)) { |
| if (dp_rx_is_peer_cache_bufq_supported()) |
| dp_rx_enqueue_rx(peer, nbuf_head); |
| else |
| dp_rx_drop_nbuf_list(vdev->pdev, nbuf_head); |
| |
| return; |
| } |
| |
| if (qdf_unlikely(vdev->rx_decap_type == htt_cmn_pkt_type_raw) || |
| (vdev->rx_decap_type == htt_cmn_pkt_type_native_wifi)) { |
| vdev->osif_rsim_rx_decap(vdev->osif_vdev, &nbuf_head, |
| &nbuf_tail, (struct cdp_peer *) peer); |
| } |
| |
| vdev->osif_rx(vdev->osif_vdev, nbuf_head); |
| } |
| |
| /** |
| * dp_rx_cksum_offload() - set the nbuf checksum as defined by hardware. |
| * @nbuf: pointer to the first msdu of an amsdu. |
| * @rx_tlv_hdr: pointer to the start of RX TLV headers. |
| * |
| * The ipsumed field of the skb is set based on whether HW validated the |
| * IP/TCP/UDP checksum. |
| * |
| * Return: void |
| */ |
| static inline void dp_rx_cksum_offload(struct dp_pdev *pdev, |
| qdf_nbuf_t nbuf, |
| uint8_t *rx_tlv_hdr) |
| { |
| qdf_nbuf_rx_cksum_t cksum = {0}; |
| bool ip_csum_err = hal_rx_attn_ip_cksum_fail_get(rx_tlv_hdr); |
| bool tcp_udp_csum_er = hal_rx_attn_tcp_udp_cksum_fail_get(rx_tlv_hdr); |
| |
| if (qdf_likely(!ip_csum_err && !tcp_udp_csum_er)) { |
| cksum.l4_result = QDF_NBUF_RX_CKSUM_TCP_UDP_UNNECESSARY; |
| qdf_nbuf_set_rx_cksum(nbuf, &cksum); |
| } else { |
| DP_STATS_INCC(pdev, err.ip_csum_err, 1, ip_csum_err); |
| DP_STATS_INCC(pdev, err.tcp_udp_csum_err, 1, tcp_udp_csum_er); |
| } |
| } |
| |
| /** |
| * dp_rx_msdu_stats_update() - update per msdu stats. |
| * @soc: core txrx main context |
| * @nbuf: pointer to the first msdu of an amsdu. |
| * @rx_tlv_hdr: pointer to the start of RX TLV headers. |
| * @peer: pointer to the peer object. |
| * @ring_id: reo dest ring number on which pkt is reaped. |
| * @tid_stats: per tid rx stats. |
| * |
| * update all the per msdu stats for that nbuf. |
| * Return: void |
| */ |
| static void dp_rx_msdu_stats_update(struct dp_soc *soc, |
| qdf_nbuf_t nbuf, |
| uint8_t *rx_tlv_hdr, |
| struct dp_peer *peer, |
| uint8_t ring_id, |
| struct cdp_tid_rx_stats *tid_stats) |
| { |
| bool is_ampdu, is_not_amsdu; |
| uint32_t sgi, mcs, tid, nss, bw, reception_type, pkt_type; |
| struct dp_vdev *vdev = peer->vdev; |
| qdf_ether_header_t *eh; |
| uint16_t msdu_len = QDF_NBUF_CB_RX_PKT_LEN(nbuf); |
| |
| is_not_amsdu = qdf_nbuf_is_rx_chfrag_start(nbuf) & |
| qdf_nbuf_is_rx_chfrag_end(nbuf); |
| |
| DP_STATS_INC_PKT(peer, rx.rcvd_reo[ring_id], 1, msdu_len); |
| DP_STATS_INCC(peer, rx.non_amsdu_cnt, 1, is_not_amsdu); |
| DP_STATS_INCC(peer, rx.amsdu_cnt, 1, !is_not_amsdu); |
| DP_STATS_INCC(peer, rx.rx_retries, 1, qdf_nbuf_is_rx_retry_flag(nbuf)); |
| |
| tid_stats->msdu_cnt++; |
| if (qdf_unlikely(qdf_nbuf_is_da_mcbc(nbuf) && |
| (vdev->rx_decap_type == htt_cmn_pkt_type_ethernet))) { |
| eh = (qdf_ether_header_t *)qdf_nbuf_data(nbuf); |
| DP_STATS_INC_PKT(peer, rx.multicast, 1, msdu_len); |
| tid_stats->mcast_msdu_cnt++; |
| if (QDF_IS_ADDR_BROADCAST(eh->ether_dhost)) { |
| DP_STATS_INC_PKT(peer, rx.bcast, 1, msdu_len); |
| tid_stats->bcast_msdu_cnt++; |
| } |
| } |
| |
| /* |
| * currently we can return from here as we have similar stats |
| * updated at per ppdu level instead of msdu level |
| */ |
| if (!soc->process_rx_status) |
| return; |
| |
| is_ampdu = hal_rx_mpdu_info_ampdu_flag_get(rx_tlv_hdr); |
| DP_STATS_INCC(peer, rx.ampdu_cnt, 1, is_ampdu); |
| DP_STATS_INCC(peer, rx.non_ampdu_cnt, 1, !(is_ampdu)); |
| |
| sgi = hal_rx_msdu_start_sgi_get(rx_tlv_hdr); |
| mcs = hal_rx_msdu_start_rate_mcs_get(rx_tlv_hdr); |
| tid = qdf_nbuf_get_tid_val(nbuf); |
| bw = hal_rx_msdu_start_bw_get(rx_tlv_hdr); |
| reception_type = hal_rx_msdu_start_reception_type_get(soc->hal_soc, |
| rx_tlv_hdr); |
| nss = hal_rx_msdu_start_nss_get(soc->hal_soc, rx_tlv_hdr); |
| pkt_type = hal_rx_msdu_start_get_pkt_type(rx_tlv_hdr); |
| |
| DP_STATS_INC(peer, rx.bw[bw], 1); |
| /* |
| * only if nss > 0 and pkt_type is 11N/AC/AX, |
| * then increase index [nss - 1] in array counter. |
| */ |
| if (nss > 0 && (pkt_type == DOT11_N || |
| pkt_type == DOT11_AC || |
| pkt_type == DOT11_AX)) |
| DP_STATS_INC(peer, rx.nss[nss - 1], 1); |
| |
| DP_STATS_INC(peer, rx.sgi_count[sgi], 1); |
| DP_STATS_INCC(peer, rx.err.mic_err, 1, |
| hal_rx_mpdu_end_mic_err_get(rx_tlv_hdr)); |
| DP_STATS_INCC(peer, rx.err.decrypt_err, 1, |
| hal_rx_mpdu_end_decrypt_err_get(rx_tlv_hdr)); |
| |
| DP_STATS_INC(peer, rx.wme_ac_type[TID_TO_WME_AC(tid)], 1); |
| DP_STATS_INC(peer, rx.reception_type[reception_type], 1); |
| |
| DP_STATS_INCC(peer, rx.pkt_type[pkt_type].mcs_count[MAX_MCS - 1], 1, |
| ((mcs >= MAX_MCS_11A) && (pkt_type == DOT11_A))); |
| DP_STATS_INCC(peer, rx.pkt_type[pkt_type].mcs_count[mcs], 1, |
| ((mcs <= MAX_MCS_11A) && (pkt_type == DOT11_A))); |
| DP_STATS_INCC(peer, rx.pkt_type[pkt_type].mcs_count[MAX_MCS - 1], 1, |
| ((mcs >= MAX_MCS_11B) && (pkt_type == DOT11_B))); |
| DP_STATS_INCC(peer, rx.pkt_type[pkt_type].mcs_count[mcs], 1, |
| ((mcs <= MAX_MCS_11B) && (pkt_type == DOT11_B))); |
| DP_STATS_INCC(peer, rx.pkt_type[pkt_type].mcs_count[MAX_MCS - 1], 1, |
| ((mcs >= MAX_MCS_11A) && (pkt_type == DOT11_N))); |
| DP_STATS_INCC(peer, rx.pkt_type[pkt_type].mcs_count[mcs], 1, |
| ((mcs <= MAX_MCS_11A) && (pkt_type == DOT11_N))); |
| DP_STATS_INCC(peer, rx.pkt_type[pkt_type].mcs_count[MAX_MCS - 1], 1, |
| ((mcs >= MAX_MCS_11AC) && (pkt_type == DOT11_AC))); |
| DP_STATS_INCC(peer, rx.pkt_type[pkt_type].mcs_count[mcs], 1, |
| ((mcs <= MAX_MCS_11AC) && (pkt_type == DOT11_AC))); |
| DP_STATS_INCC(peer, rx.pkt_type[pkt_type].mcs_count[MAX_MCS - 1], 1, |
| ((mcs >= MAX_MCS) && (pkt_type == DOT11_AX))); |
| DP_STATS_INCC(peer, rx.pkt_type[pkt_type].mcs_count[mcs], 1, |
| ((mcs < MAX_MCS) && (pkt_type == DOT11_AX))); |
| |
| if ((soc->process_rx_status) && |
| hal_rx_attn_first_mpdu_get(rx_tlv_hdr)) { |
| #if defined(FEATURE_PERPKT_INFO) && WDI_EVENT_ENABLE |
| if (!vdev->pdev) |
| return; |
| |
| dp_wdi_event_handler(WDI_EVENT_UPDATE_DP_STATS, vdev->pdev->soc, |
| &peer->stats, peer->peer_ids[0], |
| UPDATE_PEER_STATS, |
| vdev->pdev->pdev_id); |
| #endif |
| |
| } |
| } |
| |
| static inline bool is_sa_da_idx_valid(struct dp_soc *soc, |
| uint8_t *rx_tlv_hdr, |
| qdf_nbuf_t nbuf) |
| { |
| if ((qdf_nbuf_is_sa_valid(nbuf) && |
| (hal_rx_msdu_end_sa_idx_get(soc->hal_soc, rx_tlv_hdr) > |
| wlan_cfg_get_max_ast_idx(soc->wlan_cfg_ctx))) || |
| (!qdf_nbuf_is_da_mcbc(nbuf) && |
| qdf_nbuf_is_da_valid(nbuf) && |
| (hal_rx_msdu_end_da_idx_get(soc->hal_soc, rx_tlv_hdr) > |
| wlan_cfg_get_max_ast_idx(soc->wlan_cfg_ctx)))) |
| return false; |
| |
| return true; |
| } |
| |
| #ifndef WDS_VENDOR_EXTENSION |
| int dp_wds_rx_policy_check(uint8_t *rx_tlv_hdr, |
| struct dp_vdev *vdev, |
| struct dp_peer *peer) |
| { |
| return 1; |
| } |
| #endif |
| |
| #ifdef RX_DESC_DEBUG_CHECK |
| /** |
| * dp_rx_desc_nbuf_sanity_check - Add sanity check to catch REO rx_desc paddr |
| * corruption |
| * |
| * @ring_desc: REO ring descriptor |
| * @rx_desc: Rx descriptor |
| * |
| * Return: NONE |
| */ |
| static inline |
| void dp_rx_desc_nbuf_sanity_check(hal_ring_desc_t ring_desc, |
| struct dp_rx_desc *rx_desc) |
| { |
| struct hal_buf_info hbi; |
| |
| hal_rx_reo_buf_paddr_get(ring_desc, &hbi); |
| /* Sanity check for possible buffer paddr corruption */ |
| qdf_assert_always((&hbi)->paddr == |
| qdf_nbuf_get_frag_paddr(rx_desc->nbuf, 0)); |
| } |
| #else |
| static inline |
| void dp_rx_desc_nbuf_sanity_check(hal_ring_desc_t ring_desc, |
| struct dp_rx_desc *rx_desc) |
| { |
| } |
| #endif |
| |
| #ifdef WLAN_FEATURE_RX_SOFTIRQ_TIME_LIMIT |
| static inline |
| bool dp_rx_reap_loop_pkt_limit_hit(struct dp_soc *soc, int num_reaped) |
| { |
| bool limit_hit = false; |
| struct wlan_cfg_dp_soc_ctxt *cfg = soc->wlan_cfg_ctx; |
| |
| limit_hit = |
| (num_reaped >= cfg->rx_reap_loop_pkt_limit) ? true : false; |
| |
| if (limit_hit) |
| DP_STATS_INC(soc, rx.reap_loop_pkt_limit_hit, 1) |
| |
| return limit_hit; |
| } |
| |
| static inline bool dp_rx_enable_eol_data_check(struct dp_soc *soc) |
| { |
| return soc->wlan_cfg_ctx->rx_enable_eol_data_check; |
| } |
| |
| #else |
| static inline |
| bool dp_rx_reap_loop_pkt_limit_hit(struct dp_soc *soc, int num_reaped) |
| { |
| return false; |
| } |
| |
| static inline bool dp_rx_enable_eol_data_check(struct dp_soc *soc) |
| { |
| return false; |
| } |
| |
| #endif /* WLAN_FEATURE_RX_SOFTIRQ_TIME_LIMIT */ |
| |
| /** |
| * dp_is_special_data() - check is the pkt special like eapol, dhcp, etc |
| * |
| * @nbuf: pkt skb pointer |
| * |
| * Return: true if matched, false if not |
| */ |
| static inline |
| bool dp_is_special_data(qdf_nbuf_t nbuf) |
| { |
| if (qdf_nbuf_is_ipv4_arp_pkt(nbuf) || |
| qdf_nbuf_is_ipv4_dhcp_pkt(nbuf) || |
| qdf_nbuf_is_ipv4_eapol_pkt(nbuf) || |
| qdf_nbuf_is_ipv6_dhcp_pkt(nbuf)) |
| return true; |
| else |
| return false; |
| } |
| |
| #ifdef DP_RX_PKT_NO_PEER_DELIVER |
| /** |
| * dp_rx_deliver_to_stack_no_peer() - try deliver rx data even if |
| * no corresbonding peer found |
| * @soc: core txrx main context |
| * @nbuf: pkt skb pointer |
| * |
| * This function will try to deliver some RX special frames to stack |
| * even there is no peer matched found. for instance, LFR case, some |
| * eapol data will be sent to host before peer_map done. |
| * |
| * Return: None |
| */ |
| static inline |
| void dp_rx_deliver_to_stack_no_peer(struct dp_soc *soc, qdf_nbuf_t nbuf) |
| { |
| uint32_t peer_mdata; |
| uint16_t peer_id; |
| uint8_t vdev_id; |
| struct dp_vdev *vdev; |
| uint32_t l2_hdr_offset = 0; |
| uint16_t msdu_len = 0; |
| uint32_t pkt_len = 0; |
| uint8_t *rx_tlv_hdr; |
| |
| peer_mdata = QDF_NBUF_CB_RX_PEER_ID(nbuf); |
| |
| peer_id = DP_PEER_METADATA_PEER_ID_GET(peer_mdata); |
| if (peer_id > soc->max_peers) |
| goto deliver_fail; |
| |
| vdev_id = DP_PEER_METADATA_ID_GET(peer_mdata); |
| vdev = dp_get_vdev_from_soc_vdev_id_wifi3(soc, vdev_id); |
| if (!vdev || !vdev->osif_rx) |
| goto deliver_fail; |
| |
| rx_tlv_hdr = qdf_nbuf_data(nbuf); |
| l2_hdr_offset = |
| hal_rx_msdu_end_l3_hdr_padding_get(soc->hal_soc, rx_tlv_hdr); |
| |
| msdu_len = QDF_NBUF_CB_RX_PKT_LEN(nbuf); |
| pkt_len = msdu_len + l2_hdr_offset + RX_PKT_TLVS_LEN; |
| |
| if (qdf_unlikely(qdf_nbuf_is_frag(nbuf))) { |
| qdf_nbuf_pull_head(nbuf, RX_PKT_TLVS_LEN); |
| } else { |
| qdf_nbuf_set_pktlen(nbuf, pkt_len); |
| qdf_nbuf_pull_head(nbuf, |
| RX_PKT_TLVS_LEN + |
| l2_hdr_offset); |
| } |
| |
| /* only allow special frames */ |
| if (!dp_is_special_data(nbuf)) |
| goto deliver_fail; |
| |
| vdev->osif_rx(vdev->osif_vdev, nbuf); |
| DP_STATS_INC(soc, rx.err.pkt_delivered_no_peer, 1); |
| return; |
| |
| deliver_fail: |
| DP_STATS_INC_PKT(soc, rx.err.rx_invalid_peer, 1, |
| QDF_NBUF_CB_RX_PKT_LEN(nbuf)); |
| qdf_nbuf_free(nbuf); |
| } |
| #else |
| static inline |
| void dp_rx_deliver_to_stack_no_peer(struct dp_soc *soc, qdf_nbuf_t nbuf) |
| { |
| DP_STATS_INC_PKT(soc, rx.err.rx_invalid_peer, 1, |
| QDF_NBUF_CB_RX_PKT_LEN(nbuf)); |
| qdf_nbuf_free(nbuf); |
| } |
| #endif |
| |
| /** |
| * dp_rx_srng_get_num_pending() - get number of pending entries |
| * @hal_soc: hal soc opaque pointer |
| * @hal_ring: opaque pointer to the HAL Rx Ring |
| * @num_entries: number of entries in the hal_ring. |
| * @near_full: pointer to a boolean. This is set if ring is near full. |
| * |
| * The function returns the number of entries in a destination ring which are |
| * yet to be reaped. The function also checks if the ring is near full. |
| * If more than half of the ring needs to be reaped, the ring is considered |
| * approaching full. |
| * The function useses hal_srng_dst_num_valid_locked to get the number of valid |
| * entries. It should not be called within a SRNG lock. HW pointer value is |
| * synced into cached_hp. |
| * |
| * Return: Number of pending entries if any |
| */ |
| static |
| uint32_t dp_rx_srng_get_num_pending(hal_soc_handle_t hal_soc, |
| hal_ring_handle_t hal_ring_hdl, |
| uint32_t num_entries, |
| bool *near_full) |
| { |
| uint32_t num_pending = 0; |
| |
| num_pending = hal_srng_dst_num_valid_locked(hal_soc, |
| hal_ring_hdl, |
| true); |
| |
| if (num_entries && (num_pending >= num_entries >> 1)) |
| *near_full = true; |
| else |
| *near_full = false; |
| |
| return num_pending; |
| } |
| |
| /** |
| * dp_rx_process() - Brain of the Rx processing functionality |
| * Called from the bottom half (tasklet/NET_RX_SOFTIRQ) |
| * @int_ctx: per interrupt context |
| * @hal_ring: opaque pointer to the HAL Rx Ring, which will be serviced |
| * @reo_ring_num: ring number (0, 1, 2 or 3) of the reo ring. |
| * @quota: No. of units (packets) that can be serviced in one shot. |
| * |
| * This function implements the core of Rx functionality. This is |
| * expected to handle only non-error frames. |
| * |
| * Return: uint32_t: No. of elements processed |
| */ |
| uint32_t dp_rx_process(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_soc_handle_t hal_soc; |
| struct dp_rx_desc *rx_desc = NULL; |
| qdf_nbuf_t nbuf, next; |
| bool near_full; |
| union dp_rx_desc_list_elem_t *head[MAX_PDEV_CNT]; |
| union dp_rx_desc_list_elem_t *tail[MAX_PDEV_CNT]; |
| uint32_t num_pending; |
| uint32_t rx_bufs_used = 0, rx_buf_cookie; |
| uint32_t l2_hdr_offset = 0; |
| uint16_t msdu_len = 0; |
| uint16_t peer_id; |
| struct dp_peer *peer; |
| struct dp_vdev *vdev; |
| uint32_t pkt_len = 0; |
| struct hal_rx_mpdu_desc_info mpdu_desc_info; |
| struct hal_rx_msdu_desc_info msdu_desc_info; |
| enum hal_reo_error_status error; |
| uint32_t peer_mdata; |
| uint8_t *rx_tlv_hdr; |
| uint32_t rx_bufs_reaped[MAX_PDEV_CNT]; |
| uint8_t mac_id = 0; |
| struct dp_pdev *pdev; |
| struct dp_pdev *rx_pdev; |
| struct dp_srng *dp_rxdma_srng; |
| struct rx_desc_pool *rx_desc_pool; |
| struct dp_soc *soc = int_ctx->soc; |
| uint8_t ring_id = 0; |
| uint8_t core_id = 0; |
| 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; |
| |
| DP_HIST_INIT(); |
| |
| qdf_assert_always(soc && hal_ring_hdl); |
| hal_soc = soc->hal_soc; |
| qdf_assert_always(hal_soc); |
| |
| scn = soc->hif_handle; |
| hif_pm_runtime_mark_dp_rx_busy(scn); |
| intr_id = int_ctx->dp_intr_id; |
| num_entries = hal_srng_get_num_entries(hal_soc, hal_ring_hdl); |
| |
| 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; |
| peer = NULL; |
| vdev = NULL; |
| num_rx_bufs_reaped = 0; |
| |
| qdf_mem_zero(rx_bufs_reaped, sizeof(rx_bufs_reaped)); |
| qdf_mem_zero(&mpdu_desc_info, sizeof(mpdu_desc_info)); |
| qdf_mem_zero(&msdu_desc_info, sizeof(msdu_desc_info)); |
| qdf_mem_zero(head, sizeof(head)); |
| qdf_mem_zero(tail, sizeof(tail)); |
| |
| if (qdf_unlikely(dp_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; |
| } |
| |
| /* |
| * 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(quota && |
| (ring_desc = hal_srng_dst_peek(hal_soc, |
| hal_ring_hdl)))) { |
| |
| error = HAL_RX_ERROR_STATUS_GET(ring_desc); |
| ring_id = hal_srng_ring_id_get(hal_ring_hdl); |
| |
| if (qdf_unlikely(error == HAL_REO_ERROR_DETECTED)) { |
| QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_ERROR, |
| FL("HAL RING 0x%pK:error %d"), hal_ring_hdl, error); |
| DP_STATS_INC(soc, rx.err.hal_reo_error[ring_id], 1); |
| /* Don't know how to deal with this -- assert */ |
| qdf_assert(0); |
| } |
| |
| rx_buf_cookie = HAL_RX_REO_BUF_COOKIE_GET(ring_desc); |
| |
| rx_desc = dp_rx_cookie_2_va_rxdma_buf(soc, rx_buf_cookie); |
| qdf_assert(rx_desc); |
| |
| /* |
| * 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); |
| /* ignore duplicate RX desc and continue to process */ |
| /* Pop out the descriptor */ |
| hal_srng_dst_get_next(hal_soc, hal_ring_hdl); |
| 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); |
| } |
| |
| dp_rx_desc_nbuf_sanity_check(ring_desc, rx_desc); |
| |
| /* TODO */ |
| /* |
| * Need a separate API for unmapping based on |
| * phyiscal address |
| */ |
| qdf_nbuf_unmap_single(soc->osdev, rx_desc->nbuf, |
| QDF_DMA_FROM_DEVICE); |
| rx_desc->unmapped = 1; |
| |
| core_id = smp_processor_id(); |
| DP_STATS_INC(soc, rx.ring_packets[core_id][ring_id], 1); |
| |
| /* Get MPDU DESC info */ |
| hal_rx_mpdu_desc_info_get(ring_desc, &mpdu_desc_info); |
| |
| /* Get MSDU DESC info */ |
| hal_rx_msdu_desc_info_get(ring_desc, &msdu_desc_info); |
| |
| if (mpdu_desc_info.mpdu_flags & HAL_MPDU_F_RETRY_BIT) |
| qdf_nbuf_set_rx_retry_flag(rx_desc->nbuf, 1); |
| |
| if (qdf_unlikely(mpdu_desc_info.mpdu_flags & |
| HAL_MPDU_F_RAW_AMPDU)) { |
| /* previous msdu has end bit set, so current one is |
| * the new MPDU |
| */ |
| if (is_prev_msdu_last) { |
| is_prev_msdu_last = false; |
| /* 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 (((msdu_desc_info.msdu_len / |
| (RX_BUFFER_SIZE - RX_PKT_TLVS_LEN) + 1)) > |
| num_entries_avail) |
| break; |
| } else { |
| if (msdu_desc_info.msdu_flags & |
| HAL_MSDU_F_LAST_MSDU_IN_MPDU) |
| is_prev_msdu_last = true; |
| } |
| qdf_nbuf_set_raw_frame(rx_desc->nbuf, 1); |
| } |
| |
| /* Pop out the descriptor*/ |
| hal_srng_dst_get_next(hal_soc, hal_ring_hdl); |
| |
| rx_bufs_reaped[rx_desc->pool_id]++; |
| peer_mdata = mpdu_desc_info.peer_meta_data; |
| QDF_NBUF_CB_RX_PEER_ID(rx_desc->nbuf) = |
| DP_PEER_METADATA_PEER_ID_GET(peer_mdata); |
| |
| /* |
| * save msdu flags first, last and continuation msdu in |
| * nbuf->cb, also save mcbc, is_da_valid, is_sa_valid and |
| * length to nbuf->cb. This ensures the info required for |
| * per pkt processing is always in the same cache line. |
| * This helps in improving throughput for smaller pkt |
| * sizes. |
| */ |
| if (msdu_desc_info.msdu_flags & HAL_MSDU_F_FIRST_MSDU_IN_MPDU) |
| qdf_nbuf_set_rx_chfrag_start(rx_desc->nbuf, 1); |
| |
| if (msdu_desc_info.msdu_flags & HAL_MSDU_F_MSDU_CONTINUATION) |
| qdf_nbuf_set_rx_chfrag_cont(rx_desc->nbuf, 1); |
| |
| if (msdu_desc_info.msdu_flags & HAL_MSDU_F_LAST_MSDU_IN_MPDU) |
| qdf_nbuf_set_rx_chfrag_end(rx_desc->nbuf, 1); |
| |
| if (msdu_desc_info.msdu_flags & HAL_MSDU_F_DA_IS_MCBC) |
| qdf_nbuf_set_da_mcbc(rx_desc->nbuf, 1); |
| |
| if (msdu_desc_info.msdu_flags & HAL_MSDU_F_DA_IS_VALID) |
| qdf_nbuf_set_da_valid(rx_desc->nbuf, 1); |
| |
| if (msdu_desc_info.msdu_flags & HAL_MSDU_F_SA_IS_VALID) |
| qdf_nbuf_set_sa_valid(rx_desc->nbuf, 1); |
| |
| qdf_nbuf_set_tid_val(rx_desc->nbuf, |
| HAL_RX_REO_QUEUE_NUMBER_GET(ring_desc)); |
| |
| QDF_NBUF_CB_RX_PKT_LEN(rx_desc->nbuf) = msdu_desc_info.msdu_len; |
| |
| QDF_NBUF_CB_RX_CTX_ID(rx_desc->nbuf) = reo_ring_num; |
| |
| DP_RX_LIST_APPEND(nbuf_head, nbuf_tail, rx_desc->nbuf); |
| |
| /* |
| * 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(!qdf_nbuf_is_rx_chfrag_cont(rx_desc->nbuf))) |
| quota -= 1; |
| |
| dp_rx_add_to_free_desc_list(&head[rx_desc->pool_id], |
| &tail[rx_desc->pool_id], |
| rx_desc); |
| |
| num_rx_bufs_reaped++; |
| if (dp_rx_reap_loop_pkt_limit_hit(soc, num_rx_bufs_reaped)) |
| break; |
| } |
| done: |
| dp_srng_access_end(int_ctx, soc, hal_ring_hdl); |
| |
| 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[mac_id]) |
| continue; |
| |
| pdev = soc->pdev_list[mac_id]; |
| dp_rxdma_srng = &pdev->rx_refill_buf_ring; |
| rx_desc_pool = &soc->rx_desc_buf[mac_id]; |
| |
| dp_rx_buffers_replenish(soc, mac_id, dp_rxdma_srng, |
| rx_desc_pool, rx_bufs_reaped[mac_id], |
| &head[mac_id], &tail[mac_id]); |
| } |
| |
| dp_verbose_debug("replenished %u\n", rx_bufs_reaped[0]); |
| /* Peer can be NULL is case of LFR */ |
| if (qdf_likely(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; |
| rx_tlv_hdr = qdf_nbuf_data(nbuf); |
| /* Get TID from struct cb->tid_val, save to tid */ |
| if (qdf_nbuf_is_rx_chfrag_start(nbuf)) |
| tid = qdf_nbuf_get_tid_val(nbuf); |
| |
| peer_mdata = QDF_NBUF_CB_RX_PEER_ID(nbuf); |
| peer_id = DP_PEER_METADATA_PEER_ID_GET(peer_mdata); |
| peer = dp_peer_find_by_id(soc, peer_id); |
| |
| if (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++; |
| |
| if (deliver_list_head && peer && (vdev != peer->vdev)) { |
| dp_rx_deliver_to_stack(vdev, peer, deliver_list_head, |
| deliver_list_tail); |
| deliver_list_head = NULL; |
| deliver_list_tail = NULL; |
| } |
| |
| if (qdf_likely(peer)) { |
| vdev = peer->vdev; |
| } else { |
| nbuf->next = NULL; |
| dp_rx_deliver_to_stack_no_peer(soc, nbuf); |
| nbuf = next; |
| continue; |
| } |
| |
| if (qdf_unlikely(!vdev)) { |
| qdf_nbuf_free(nbuf); |
| nbuf = next; |
| DP_STATS_INC(soc, rx.err.invalid_vdev, 1); |
| dp_peer_unref_del_find_by_id(peer); |
| continue; |
| } |
| |
| rx_pdev = vdev->pdev; |
| DP_RX_TID_SAVE(nbuf, tid); |
| if (qdf_unlikely(rx_pdev->delay_stats_flag)) |
| qdf_nbuf_set_timestamp(nbuf); |
| |
| ring_id = QDF_NBUF_CB_RX_CTX_ID(nbuf); |
| tid_stats = |
| &rx_pdev->stats.tid_stats.tid_rx_stats[ring_id][tid]; |
| |
| /* |
| * Check if DMA completed -- msdu_done is the last bit |
| * to be written |
| */ |
| if (qdf_unlikely(!qdf_nbuf_is_raw_frame(nbuf) && |
| !hal_rx_attn_msdu_done_get(rx_tlv_hdr))) { |
| dp_err("MSDU DONE failure"); |
| DP_STATS_INC(soc, rx.err.msdu_done_fail, 1); |
| hal_rx_dump_pkt_tlvs(hal_soc, rx_tlv_hdr, |
| QDF_TRACE_LEVEL_INFO); |
| tid_stats->fail_cnt[MSDU_DONE_FAILURE]++; |
| qdf_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, RX_PKT_TLVS_LEN); |
| } else if (qdf_nbuf_is_raw_frame(nbuf)) { |
| msdu_len = QDF_NBUF_CB_RX_PKT_LEN(nbuf); |
| nbuf = dp_rx_sg_create(nbuf, rx_tlv_hdr); |
| |
| DP_STATS_INC(vdev->pdev, rx_raw_pkts, 1); |
| DP_STATS_INC_PKT(peer, rx.raw, 1, msdu_len); |
| |
| next = nbuf->next; |
| } else { |
| l2_hdr_offset = |
| hal_rx_msdu_end_l3_hdr_padding_get(soc->hal_soc, |
| rx_tlv_hdr); |
| |
| msdu_len = QDF_NBUF_CB_RX_PKT_LEN(nbuf); |
| pkt_len = msdu_len + l2_hdr_offset + RX_PKT_TLVS_LEN; |
| |
| qdf_nbuf_set_pktlen(nbuf, pkt_len); |
| qdf_nbuf_pull_head(nbuf, |
| RX_PKT_TLVS_LEN + |
| l2_hdr_offset); |
| } |
| |
| /* |
| * process frame for mulitpass phrase processing |
| */ |
| if (qdf_unlikely(vdev->multipass_en)) { |
| dp_rx_multipass_process(peer, nbuf, tid); |
| } |
| |
| if (!dp_wds_rx_policy_check(rx_tlv_hdr, vdev, peer)) { |
| QDF_TRACE(QDF_MODULE_ID_DP, |
| QDF_TRACE_LEVEL_ERROR, |
| FL("Policy Check Drop pkt")); |
| tid_stats->fail_cnt[POLICY_CHECK_DROP]++; |
| /* Drop & free packet */ |
| qdf_nbuf_free(nbuf); |
| /* Statistics */ |
| nbuf = next; |
| dp_peer_unref_del_find_by_id(peer); |
| continue; |
| } |
| |
| if (qdf_unlikely(peer && (peer->nawds_enabled) && |
| (qdf_nbuf_is_da_mcbc(nbuf)) && |
| (hal_rx_get_mpdu_mac_ad4_valid(soc->hal_soc, |
| rx_tlv_hdr) == |
| false))) { |
| tid_stats->fail_cnt[NAWDS_MCAST_DROP]++; |
| DP_STATS_INC(peer, rx.nawds_mcast_drop, 1); |
| qdf_nbuf_free(nbuf); |
| nbuf = next; |
| dp_peer_unref_del_find_by_id(peer); |
| continue; |
| } |
| |
| if (soc->process_rx_status) |
| dp_rx_cksum_offload(vdev->pdev, nbuf, rx_tlv_hdr); |
| |
| /* 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); |
| |
| dp_rx_msdu_stats_update(soc, nbuf, rx_tlv_hdr, peer, |
| ring_id, tid_stats); |
| |
| if (qdf_unlikely(vdev->mesh_vdev)) { |
| if (dp_rx_filter_mesh_packets(vdev, nbuf, rx_tlv_hdr) |
| == QDF_STATUS_SUCCESS) { |
| QDF_TRACE(QDF_MODULE_ID_DP, |
| QDF_TRACE_LEVEL_INFO_MED, |
| FL("mesh pkt filtered")); |
| tid_stats->fail_cnt[MESH_FILTER_DROP]++; |
| DP_STATS_INC(vdev->pdev, dropped.mesh_filter, |
| 1); |
| |
| qdf_nbuf_free(nbuf); |
| nbuf = next; |
| dp_peer_unref_del_find_by_id(peer); |
| continue; |
| } |
| dp_rx_fill_mesh_stats(vdev, nbuf, rx_tlv_hdr, peer); |
| } |
| |
| if (qdf_likely(vdev->rx_decap_type == |
| htt_cmn_pkt_type_ethernet) && |
| qdf_likely(!vdev->mesh_vdev)) { |
| /* WDS Destination Address Learning */ |
| dp_rx_da_learn(soc, rx_tlv_hdr, peer, nbuf); |
| |
| /* Due to HW issue, sometimes we see that the sa_idx |
| * and da_idx are invalid with sa_valid and da_valid |
| * bits set |
| * |
| * in this case we also see that value of |
| * sa_sw_peer_id is set as 0 |
| * |
| * Drop the packet if sa_idx and da_idx OOB or |
| * sa_sw_peerid is 0 |
| */ |
| if (!is_sa_da_idx_valid(soc, rx_tlv_hdr, nbuf)) { |
| qdf_nbuf_free(nbuf); |
| nbuf = next; |
| DP_STATS_INC(soc, rx.err.invalid_sa_da_idx, 1); |
| dp_peer_unref_del_find_by_id(peer); |
| continue; |
| } |
| /* WDS Source Port Learning */ |
| if (qdf_likely(vdev->wds_enabled)) |
| dp_rx_wds_srcport_learn(soc, rx_tlv_hdr, |
| peer, nbuf); |
| |
| /* Intrabss-fwd */ |
| if (dp_rx_check_ap_bridge(vdev)) |
| if (dp_rx_intrabss_fwd(soc, |
| peer, |
| rx_tlv_hdr, |
| nbuf)) { |
| nbuf = next; |
| dp_peer_unref_del_find_by_id(peer); |
| tid_stats->intrabss_cnt++; |
| continue; /* Get next desc */ |
| } |
| } |
| |
| dp_rx_fill_gro_info(soc, rx_tlv_hdr, nbuf, &rx_ol_pkt_cnt); |
| |
| DP_RX_LIST_APPEND(deliver_list_head, |
| deliver_list_tail, |
| nbuf); |
| DP_STATS_INC_PKT(peer, rx.to_stack, 1, |
| QDF_NBUF_CB_RX_PKT_LEN(nbuf)); |
| |
| tid_stats->delivered_to_stack++; |
| nbuf = next; |
| dp_peer_unref_del_find_by_id(peer); |
| } |
| |
| if (deliver_list_head && peer) |
| dp_rx_deliver_to_stack(vdev, peer, deliver_list_head, |
| deliver_list_tail); |
| |
| 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_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 */ |
| } |
| |
| QDF_STATUS dp_rx_vdev_detach(struct dp_vdev *vdev) |
| { |
| QDF_STATUS ret; |
| |
| if (vdev->osif_rx_flush) { |
| ret = vdev->osif_rx_flush(vdev->osif_vdev, vdev->vdev_id); |
| if (!ret) { |
| dp_err("Failed to flush rx pkts for vdev %d\n", |
| vdev->vdev_id); |
| return ret; |
| } |
| } |
| |
| return QDF_STATUS_SUCCESS; |
| } |
| |
| /** |
| * dp_rx_pdev_detach() - detach dp rx |
| * @pdev: core txrx pdev context |
| * |
| * This function will detach DP RX into main device context |
| * will free DP Rx resources. |
| * |
| * Return: void |
| */ |
| void |
| dp_rx_pdev_detach(struct dp_pdev *pdev) |
| { |
| uint8_t pdev_id = pdev->pdev_id; |
| struct dp_soc *soc = pdev->soc; |
| struct rx_desc_pool *rx_desc_pool; |
| |
| rx_desc_pool = &soc->rx_desc_buf[pdev_id]; |
| |
| if (rx_desc_pool->pool_size != 0) { |
| if (!dp_is_soc_reinit(soc)) |
| dp_rx_desc_nbuf_and_pool_free(soc, pdev_id, |
| rx_desc_pool); |
| else |
| dp_rx_desc_nbuf_free(soc, rx_desc_pool); |
| } |
| |
| return; |
| } |
| |
| static QDF_STATUS |
| dp_pdev_nbuf_alloc_and_map(struct dp_soc *dp_soc, qdf_nbuf_t *nbuf, |
| struct dp_pdev *dp_pdev) |
| { |
| qdf_dma_addr_t paddr; |
| QDF_STATUS ret = QDF_STATUS_E_FAILURE; |
| |
| *nbuf = qdf_nbuf_alloc(dp_soc->osdev, RX_BUFFER_SIZE, |
| RX_BUFFER_RESERVATION, RX_BUFFER_ALIGNMENT, |
| FALSE); |
| if (!(*nbuf)) { |
| dp_err("nbuf alloc failed"); |
| DP_STATS_INC(dp_pdev, replenish.nbuf_alloc_fail, 1); |
| return ret; |
| } |
| |
| ret = qdf_nbuf_map_single(dp_soc->osdev, *nbuf, |
| QDF_DMA_FROM_DEVICE); |
| if (qdf_unlikely(QDF_IS_STATUS_ERROR(ret))) { |
| qdf_nbuf_free(*nbuf); |
| dp_err("nbuf map failed"); |
| DP_STATS_INC(dp_pdev, replenish.map_err, 1); |
| return ret; |
| } |
| |
| paddr = qdf_nbuf_get_frag_paddr(*nbuf, 0); |
| |
| ret = check_x86_paddr(dp_soc, nbuf, &paddr, dp_pdev); |
| if (ret == QDF_STATUS_E_FAILURE) { |
| qdf_nbuf_unmap_single(dp_soc->osdev, *nbuf, |
| QDF_DMA_FROM_DEVICE); |
| qdf_nbuf_free(*nbuf); |
| dp_err("nbuf check x86 failed"); |
| DP_STATS_INC(dp_pdev, replenish.x86_fail, 1); |
| return ret; |
| } |
| |
| return QDF_STATUS_SUCCESS; |
| } |
| |
| QDF_STATUS |
| dp_pdev_rx_buffers_attach(struct dp_soc *dp_soc, uint32_t mac_id, |
| struct dp_srng *dp_rxdma_srng, |
| struct rx_desc_pool *rx_desc_pool, |
| uint32_t num_req_buffers) |
| { |
| struct dp_pdev *dp_pdev = dp_get_pdev_for_mac_id(dp_soc, mac_id); |
| hal_ring_handle_t rxdma_srng = dp_rxdma_srng->hal_srng; |
| union dp_rx_desc_list_elem_t *next; |
| void *rxdma_ring_entry; |
| qdf_dma_addr_t paddr; |
| qdf_nbuf_t *rx_nbuf_arr; |
| uint32_t nr_descs, nr_nbuf = 0, nr_nbuf_total = 0; |
| uint32_t buffer_index, nbuf_ptrs_per_page; |
| qdf_nbuf_t nbuf; |
| QDF_STATUS ret; |
| int page_idx, total_pages; |
| union dp_rx_desc_list_elem_t *desc_list = NULL; |
| union dp_rx_desc_list_elem_t *tail = NULL; |
| |
| if (qdf_unlikely(!rxdma_srng)) { |
| DP_STATS_INC(dp_pdev, replenish.rxdma_err, num_req_buffers); |
| return QDF_STATUS_E_FAILURE; |
| } |
| |
| dp_debug("requested %u RX buffers for driver attach", num_req_buffers); |
| |
| nr_descs = dp_rx_get_free_desc_list(dp_soc, mac_id, rx_desc_pool, |
| num_req_buffers, &desc_list, &tail); |
| if (!nr_descs) { |
| dp_err("no free rx_descs in freelist"); |
| DP_STATS_INC(dp_pdev, err.desc_alloc_fail, num_req_buffers); |
| return QDF_STATUS_E_NOMEM; |
| } |
| |
| dp_debug("got %u RX descs for driver attach", nr_descs); |
| |
| /* |
| * Try to allocate pointers to the nbuf one page at a time. |
| * Take pointers that can fit in one page of memory and |
| * iterate through the total descriptors that need to be |
| * allocated in order of pages. Reuse the pointers that |
| * have been allocated to fit in one page across each |
| * iteration to index into the nbuf. |
| */ |
| total_pages = (nr_descs * sizeof(*rx_nbuf_arr)) / PAGE_SIZE; |
| |
| /* |
| * Add an extra page to store the remainder if any |
| */ |
| if ((nr_descs * sizeof(*rx_nbuf_arr)) % PAGE_SIZE) |
| total_pages++; |
| rx_nbuf_arr = qdf_mem_malloc(PAGE_SIZE); |
| if (!rx_nbuf_arr) { |
| dp_err("failed to allocate nbuf array"); |
| DP_STATS_INC(dp_pdev, replenish.rxdma_err, num_req_buffers); |
| QDF_BUG(0); |
| return QDF_STATUS_E_NOMEM; |
| } |
| nbuf_ptrs_per_page = PAGE_SIZE / sizeof(*rx_nbuf_arr); |
| |
| for (page_idx = 0; page_idx < total_pages; page_idx++) { |
| qdf_mem_zero(rx_nbuf_arr, PAGE_SIZE); |
| |
| for (nr_nbuf = 0; nr_nbuf < nbuf_ptrs_per_page; nr_nbuf++) { |
| /* |
| * The last page of buffer pointers may not be required |
| * completely based on the number of descriptors. Below |
| * check will ensure we are allocating only the |
| * required number of descriptors. |
| */ |
| if (nr_nbuf_total >= nr_descs) |
| break; |
| ret = dp_pdev_nbuf_alloc_and_map(dp_soc, |
| &rx_nbuf_arr[nr_nbuf], |
| dp_pdev); |
| if (QDF_IS_STATUS_ERROR(ret)) |
| break; |
| |
| nr_nbuf_total++; |
| } |
| |
| hal_srng_access_start(dp_soc->hal_soc, rxdma_srng); |
| |
| for (buffer_index = 0; buffer_index < nr_nbuf; buffer_index++) { |
| rxdma_ring_entry = |
| hal_srng_src_get_next(dp_soc->hal_soc, |
| rxdma_srng); |
| qdf_assert_always(rxdma_ring_entry); |
| |
| next = desc_list->next; |
| nbuf = rx_nbuf_arr[buffer_index]; |
| paddr = qdf_nbuf_get_frag_paddr(nbuf, 0); |
| |
| dp_rx_desc_prep(&desc_list->rx_desc, nbuf); |
| desc_list->rx_desc.in_use = 1; |
| |
| hal_rxdma_buff_addr_info_set(rxdma_ring_entry, paddr, |
| desc_list->rx_desc.cookie, |
| rx_desc_pool->owner); |
| |
| dp_ipa_handle_rx_buf_smmu_mapping(dp_soc, nbuf, true); |
| |
| desc_list = next; |
| } |
| |
| hal_srng_access_end(dp_soc->hal_soc, rxdma_srng); |
| } |
| |
| dp_info("filled %u RX buffers for driver attach", nr_nbuf_total); |
| qdf_mem_free(rx_nbuf_arr); |
| |
| if (!nr_nbuf_total) { |
| dp_err("No nbuf's allocated"); |
| QDF_BUG(0); |
| return QDF_STATUS_E_RESOURCES; |
| } |
| DP_STATS_INC_PKT(dp_pdev, replenish.pkts, nr_nbuf, |
| RX_BUFFER_SIZE * nr_nbuf_total); |
| |
| return QDF_STATUS_SUCCESS; |
| } |
| |
| /** |
| * dp_rx_attach() - attach DP RX |
| * @pdev: core txrx pdev context |
| * |
| * This function will attach a DP RX instance into the main |
| * device (SOC) context. Will allocate dp rx resource and |
| * initialize resources. |
| * |
| * Return: QDF_STATUS_SUCCESS: success |
| * QDF_STATUS_E_RESOURCES: Error return |
| */ |
| QDF_STATUS |
| dp_rx_pdev_attach(struct dp_pdev *pdev) |
| { |
| uint8_t pdev_id = pdev->pdev_id; |
| struct dp_soc *soc = pdev->soc; |
| uint32_t rxdma_entries; |
| uint32_t rx_sw_desc_weight; |
| struct dp_srng *dp_rxdma_srng; |
| struct rx_desc_pool *rx_desc_pool; |
| QDF_STATUS ret_val; |
| |
| |
| if (wlan_cfg_get_dp_pdev_nss_enabled(pdev->wlan_cfg_ctx)) { |
| QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_INFO, |
| "nss-wifi<4> skip Rx refil %d", pdev_id); |
| return QDF_STATUS_SUCCESS; |
| } |
| |
| pdev = soc->pdev_list[pdev_id]; |
| dp_rxdma_srng = &pdev->rx_refill_buf_ring; |
| rxdma_entries = dp_rxdma_srng->num_entries; |
| |
| soc->process_rx_status = CONFIG_PROCESS_RX_STATUS; |
| |
| rx_desc_pool = &soc->rx_desc_buf[pdev_id]; |
| rx_sw_desc_weight = wlan_cfg_get_dp_soc_rx_sw_desc_weight(soc->wlan_cfg_ctx); |
| |
| dp_rx_desc_pool_alloc(soc, pdev_id, |
| rx_sw_desc_weight * rxdma_entries, |
| rx_desc_pool); |
| |
| rx_desc_pool->owner = DP_WBM2SW_RBM; |
| /* For Rx buffers, WBM release ring is SW RING 3,for all pdev's */ |
| |
| ret_val = dp_rx_fst_attach(soc, pdev); |
| if ((ret_val != QDF_STATUS_SUCCESS) && |
| (ret_val != QDF_STATUS_E_NOSUPPORT)) { |
| QDF_TRACE(QDF_MODULE_ID_ANY, QDF_TRACE_LEVEL_ERROR, |
| "RX Flow Search Table attach failed: pdev %d err %d", |
| pdev_id, ret_val); |
| return ret_val; |
| } |
| |
| return dp_pdev_rx_buffers_attach(soc, pdev_id, dp_rxdma_srng, |
| rx_desc_pool, rxdma_entries - 1); |
| } |
| |
| /* |
| * dp_rx_nbuf_prepare() - prepare RX nbuf |
| * @soc: core txrx main context |
| * @pdev: core txrx pdev context |
| * |
| * This function alloc & map nbuf for RX dma usage, retry it if failed |
| * until retry times reaches max threshold or succeeded. |
| * |
| * Return: qdf_nbuf_t pointer if succeeded, NULL if failed. |
| */ |
| qdf_nbuf_t |
| dp_rx_nbuf_prepare(struct dp_soc *soc, struct dp_pdev *pdev) |
| { |
| uint8_t *buf; |
| int32_t nbuf_retry_count; |
| QDF_STATUS ret; |
| qdf_nbuf_t nbuf = NULL; |
| |
| for (nbuf_retry_count = 0; nbuf_retry_count < |
| QDF_NBUF_ALLOC_MAP_RETRY_THRESHOLD; |
| nbuf_retry_count++) { |
| /* Allocate a new skb */ |
| nbuf = qdf_nbuf_alloc(soc->osdev, |
| RX_BUFFER_SIZE, |
| RX_BUFFER_RESERVATION, |
| RX_BUFFER_ALIGNMENT, |
| FALSE); |
| |
| if (!nbuf) { |
| DP_STATS_INC(pdev, |
| replenish.nbuf_alloc_fail, 1); |
| continue; |
| } |
| |
| buf = qdf_nbuf_data(nbuf); |
| |
| memset(buf, 0, RX_BUFFER_SIZE); |
| |
| ret = qdf_nbuf_map_single(soc->osdev, nbuf, |
| QDF_DMA_FROM_DEVICE); |
| |
| /* nbuf map failed */ |
| if (qdf_unlikely(QDF_IS_STATUS_ERROR(ret))) { |
| qdf_nbuf_free(nbuf); |
| DP_STATS_INC(pdev, replenish.map_err, 1); |
| continue; |
| } |
| /* qdf_nbuf alloc and map succeeded */ |
| break; |
| } |
| |
| /* qdf_nbuf still alloc or map failed */ |
| if (qdf_unlikely(nbuf_retry_count >= |
| QDF_NBUF_ALLOC_MAP_RETRY_THRESHOLD)) |
| return NULL; |
| |
| return nbuf; |
| } |