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- /*
- * Copyright (c) 2016-2021 The Linux Foundation. All rights reserved.
- * Copyright (c) 2021-2023 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_li_rx.h"
- #include "dp_peer.h"
- #include "hal_rx.h"
- #include "hal_li_rx.h"
- #include "hal_api.h"
- #include "hal_li_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 WIFI_MONITOR_SUPPORT
- #include <dp_mon.h>
- #endif
- #ifdef FEATURE_WDS
- #include "dp_txrx_wds.h"
- #endif
- #include "dp_hist.h"
- #include "dp_rx_buffer_pool.h"
- #include "dp_li.h"
- static inline
- bool is_sa_da_idx_valid(uint32_t max_ast,
- qdf_nbuf_t nbuf, struct hal_rx_msdu_metadata msdu_info)
- {
- if ((qdf_nbuf_is_sa_valid(nbuf) && (msdu_info.sa_idx > max_ast)) ||
- (!qdf_nbuf_is_da_mcbc(nbuf) && qdf_nbuf_is_da_valid(nbuf) &&
- (msdu_info.da_idx > max_ast)))
- return false;
- return true;
- }
- #ifndef QCA_HOST_MODE_WIFI_DISABLED
- #if defined(FEATURE_MCL_REPEATER) && defined(FEATURE_MEC)
- /**
- * dp_rx_mec_check_wrapper() - wrapper to dp_rx_mcast_echo_check
- * @soc: core DP main context
- * @txrx_peer: dp peer handler
- * @rx_tlv_hdr: start of the rx TLV header
- * @nbuf: pkt buffer
- *
- * Return: bool (true if it is a looped back pkt else false)
- */
- static inline bool dp_rx_mec_check_wrapper(struct dp_soc *soc,
- struct dp_txrx_peer *txrx_peer,
- uint8_t *rx_tlv_hdr,
- qdf_nbuf_t nbuf)
- {
- return dp_rx_mcast_echo_check(soc, txrx_peer, rx_tlv_hdr, nbuf);
- }
- #else
- static inline bool dp_rx_mec_check_wrapper(struct dp_soc *soc,
- struct dp_txrx_peer *txrx_peer,
- uint8_t *rx_tlv_hdr,
- qdf_nbuf_t nbuf)
- {
- return false;
- }
- #endif
- #endif
- #ifndef QCA_HOST_MODE_WIFI_DISABLE
- static bool
- dp_rx_intrabss_ucast_check_li(struct dp_soc *soc, qdf_nbuf_t nbuf,
- struct dp_txrx_peer *ta_txrx_peer,
- struct hal_rx_msdu_metadata *msdu_metadata,
- uint8_t *p_tx_vdev_id)
- {
- uint16_t da_peer_id;
- struct dp_txrx_peer *da_peer;
- struct dp_ast_entry *ast_entry;
- dp_txrx_ref_handle txrx_ref_handle = NULL;
- if (!qdf_nbuf_is_da_valid(nbuf) || qdf_nbuf_is_da_mcbc(nbuf))
- return false;
- ast_entry = soc->ast_table[msdu_metadata->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_id = ast_entry->peer_id;
- /* 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_id == ta_txrx_peer->peer_id ||
- da_peer_id == HTT_INVALID_PEER)
- return false;
- da_peer = dp_txrx_peer_get_ref_by_id(soc, da_peer_id,
- &txrx_ref_handle, DP_MOD_ID_RX);
- if (!da_peer)
- return false;
- *p_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_txrx_peer) ||
- dp_get_peer_isolation(da_peer) ||
- da_peer->vdev->vdev_id != ta_txrx_peer->vdev->vdev_id) {
- dp_txrx_peer_unref_delete(txrx_ref_handle, DP_MOD_ID_RX);
- return false;
- }
- if (da_peer->bss_peer) {
- dp_txrx_peer_unref_delete(txrx_ref_handle, DP_MOD_ID_RX);
- return false;
- }
- dp_txrx_peer_unref_delete(txrx_ref_handle, DP_MOD_ID_RX);
- return true;
- }
- /*
- * dp_rx_intrabss_fwd_li() - Implements the Intra-BSS forwarding logic
- *
- * @soc: core txrx main context
- * @ta_txrx_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_li(struct dp_soc *soc,
- struct dp_txrx_peer *ta_txrx_peer,
- uint8_t *rx_tlv_hdr,
- qdf_nbuf_t nbuf,
- struct hal_rx_msdu_metadata msdu_metadata,
- struct cdp_tid_rx_stats *tid_stats)
- {
- uint8_t tx_vdev_id;
- /* 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_txrx_peer->bss_peer)
- return dp_rx_intrabss_mcbc_fwd(soc, ta_txrx_peer, rx_tlv_hdr,
- nbuf, tid_stats, 0);
- if (dp_rx_intrabss_eapol_drop_check(soc, ta_txrx_peer, rx_tlv_hdr,
- nbuf))
- return true;
- if (dp_rx_intrabss_ucast_check_li(soc, nbuf, ta_txrx_peer,
- &msdu_metadata, &tx_vdev_id))
- return dp_rx_intrabss_ucast_fwd(soc, ta_txrx_peer, tx_vdev_id,
- rx_tlv_hdr, nbuf, tid_stats,
- 0);
- return false;
- }
- #endif
- uint32_t dp_rx_process_li(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[MAX_PDEV_CNT];
- union dp_rx_desc_list_elem_t *tail[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;
- 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 *rx_pdev;
- 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 rx_ol_pkt_cnt = 0;
- uint32_t num_entries = 0;
- struct hal_rx_msdu_metadata msdu_metadata;
- QDF_STATUS status;
- qdf_nbuf_t ebuf_head;
- qdf_nbuf_t ebuf_tail;
- uint8_t pkt_capture_offload = 0;
- int max_reap_limit;
- uint32_t old_tid;
- uint32_t peer_ext_stats;
- uint32_t dsf;
- uint32_t max_ast;
- uint64_t current_time = 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);
- buf_size = wlan_cfg_rx_buffer_size(soc->wlan_cfg_ctx);
- 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);
- 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;
- max_reap_limit = dp_rx_get_loop_pkt_limit(soc);
- 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));
- old_tid = 0xff;
- dsf = 0;
- peer_ext_stats = 0;
- max_ast = 0;
- rx_pdev = NULL;
- tid_stats = NULL;
- dp_pkt_get_timestamp(¤t_time);
- 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;
- }
- if (!num_pending)
- num_pending = hal_srng_dst_num_valid(hal_soc, hal_ring_hdl, 0);
- dp_srng_dst_inv_cached_descs(soc, hal_ring_hdl, num_pending);
- if (num_pending > quota)
- num_pending = quota;
- last_prefetched_hw_desc = dp_srng_dst_prefetch(hal_soc, hal_ring_hdl,
- num_pending);
- peer_ext_stats = wlan_cfg_is_peer_ext_stats_enabled(soc->wlan_cfg_ctx);
- max_ast = wlan_cfg_get_max_ast_idx(soc->wlan_cfg_ctx);
- /*
- * 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 = dp_rx_cookie_2_va_rxdma_buf(soc, rx_buf_cookie);
- 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->pool_id],
- &tail[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);
- /* ignore duplicate RX desc and continue to process */
- /* Pop out the descriptor */
- 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);
- }
- /* Get MPDU DESC info */
- hal_rx_mpdu_desc_info_get_li(ring_desc, &mpdu_desc_info);
- /* Get MSDU DESC info */
- hal_rx_msdu_desc_info_get_li(ring_desc, &msdu_desc_info);
- if (qdf_unlikely(msdu_desc_info.msdu_flags &
- HAL_MSDU_F_MSDU_CONTINUATION)) {
- /* previous msdu has end bit set, so current one is
- * the new MPDU
- */
- if (is_prev_msdu_last) {
- /* 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 /
- (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;
- }
- }
- 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))
- qdf_nbuf_set_raw_frame(rx_desc->nbuf, 1);
- if (!is_prev_msdu_last &&
- !(msdu_desc_info.msdu_flags & HAL_MSDU_F_MSDU_CONTINUATION))
- is_prev_msdu_last = true;
- 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_rx_peer_metadata_peer_id_get_li(soc, peer_mdata);
- QDF_NBUF_CB_RX_VDEV_ID(rx_desc->nbuf) =
- DP_PEER_METADATA_VDEV_ID_GET_LI(peer_mdata);
- /* to indicate whether this msdu is rx offload */
- pkt_capture_offload =
- DP_PEER_METADATA_OFFLOAD_GET_LI(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));
- /* set reo dest indication */
- qdf_nbuf_set_rx_reo_dest_ind_or_sw_excpt(
- rx_desc->nbuf,
- HAL_RX_REO_MSDU_REO_DST_IND_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;
- /*
- * 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->pool_id],
- &tail[rx_desc->pool_id], rx_desc);
- num_rx_bufs_reaped++;
- dp_rx_prefetch_hw_sw_nbuf_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);
- dp_rx_per_core_stats_update(soc, reo_ring_num, num_rx_bufs_reaped);
- 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;
- dp_rxdma_srng = &soc->rx_refill_buf_ring[mac_id];
- rx_desc_pool = &soc->rx_desc_buf[mac_id];
- dp_rx_buffers_replenish_simple(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", rx_bufs_reaped[0]);
- /* 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(nbuf, next);
- if (qdf_unlikely(dp_rx_is_raw_frame_dropped(nbuf))) {
- nbuf = next;
- 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 = QDF_NBUF_CB_RX_PEER_ID(nbuf);
- 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 */
- if (qdf_nbuf_is_rx_chfrag_start(nbuf))
- 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_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)) {
- nbuf = next;
- continue;
- }
- } 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)) {
- nbuf = next;
- continue;
- }
- }
- 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++;
- /* 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_likely(!qdf_nbuf_is_rx_chfrag_cont(nbuf))) {
- if (qdf_unlikely(!hal_rx_attn_msdu_done_get_li(
- rx_tlv_hdr))) {
- dp_err_rl("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_assert(0);
- dp_rx_nbuf_free(nbuf);
- nbuf = next;
- continue;
- } else if (qdf_unlikely(hal_rx_attn_msdu_len_err_get_li(
- rx_tlv_hdr))) {
- DP_STATS_INC(soc, rx.err.msdu_len_err, 1);
- dp_rx_nbuf_free(nbuf);
- 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.
- */
- hal_rx_msdu_metadata_get(hal_soc, rx_tlv_hdr, &msdu_metadata);
- 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,
- 0);
- } 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 {
- msdu_len = QDF_NBUF_CB_RX_PKT_LEN(nbuf);
- pkt_len = msdu_len +
- msdu_metadata.l3_hdr_pad +
- soc->rx_pkt_tlv_size;
- qdf_nbuf_set_pktlen(nbuf, pkt_len);
- dp_rx_skip_tlvs(soc, nbuf, msdu_metadata.l3_hdr_pad);
- }
- dp_rx_send_pktlog(soc, rx_pdev, nbuf, QDF_TX_RX_STATUS_OK);
- /*
- * 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, 0);
- dp_rx_nbuf_free(nbuf);
- nbuf = next;
- continue;
- }
- }
- 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, 0);
- tid_stats->fail_cnt[POLICY_CHECK_DROP]++;
- /* Drop & free packet */
- dp_rx_nbuf_free(nbuf);
- /* Statistics */
- 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(soc->hal_soc,
- rx_tlv_hdr) ==
- false))) {
- tid_stats->fail_cnt[NAWDS_MCAST_DROP]++;
- DP_PEER_PER_PKT_STATS_INC(txrx_peer,
- rx.nawds_mcast_drop,
- 1, 0);
- dp_rx_nbuf_free(nbuf);
- 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, 0);
- dp_rx_nbuf_free(nbuf);
- nbuf = next;
- 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, txrx_peer,
- reo_ring_num, tid_stats, 0);
- 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)) {
- /* 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(max_ast, nbuf,
- msdu_metadata)) {
- dp_rx_nbuf_free(nbuf);
- nbuf = next;
- DP_STATS_INC(soc, rx.err.invalid_sa_da_idx, 1);
- continue;
- }
- if (qdf_unlikely(dp_rx_mec_check_wrapper(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_CB_RX_PKT_LEN(nbuf),
- 0);
- dp_rx_nbuf_free(nbuf);
- nbuf = next;
- continue;
- }
- /* WDS Source Port Learning */
- if (qdf_likely(vdev->wds_enabled))
- dp_rx_wds_srcport_learn(soc,
- rx_tlv_hdr,
- txrx_peer,
- nbuf,
- msdu_metadata);
- /* Intrabss-fwd */
- if (dp_rx_check_ap_bridge(vdev))
- if (dp_rx_intrabss_fwd_li(soc, txrx_peer,
- rx_tlv_hdr,
- nbuf,
- msdu_metadata,
- tid_stats)) {
- 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_STATS_FLAT_INC_PKT(txrx_peer, to_stack, 1,
- QDF_NBUF_CB_RX_PKT_LEN(nbuf));
- DP_PEER_PER_PKT_STATS_INC_PKT(txrx_peer,
- rx.rx_success, 1,
- QDF_NBUF_CB_RX_PKT_LEN(nbuf), 0);
- 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),
- 0);
- 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 (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 */
- }
- QDF_STATUS dp_rx_desc_pool_init_li(struct dp_soc *soc,
- struct rx_desc_pool *rx_desc_pool,
- uint32_t pool_id)
- {
- return dp_rx_desc_pool_init_generic(soc, rx_desc_pool, pool_id);
- }
- void dp_rx_desc_pool_deinit_li(struct dp_soc *soc,
- struct rx_desc_pool *rx_desc_pool,
- uint32_t pool_id)
- {
- }
- QDF_STATUS dp_wbm_get_rx_desc_from_hal_desc_li(
- struct dp_soc *soc,
- void *ring_desc,
- struct dp_rx_desc **r_rx_desc)
- {
- struct hal_buf_info buf_info = {0};
- hal_soc_handle_t hal_soc = soc->hal_soc;
- /* only cookie and rbm will be valid in buf_info */
- hal_rx_buf_cookie_rbm_get(hal_soc, (uint32_t *)ring_desc,
- &buf_info);
- if (qdf_unlikely(buf_info.rbm !=
- HAL_RX_BUF_RBM_SW3_BM(soc->wbm_sw0_bm_id))) {
- /* TODO */
- /* Call appropriate handler */
- DP_STATS_INC(soc, rx.err.invalid_rbm, 1);
- dp_rx_err("%pK: Invalid RBM %d", soc, buf_info.rbm);
- return QDF_STATUS_E_INVAL;
- }
- if (!dp_rx_is_sw_cookie_valid(soc, buf_info.sw_cookie)) {
- dp_rx_err("invalid sw_cookie 0x%x", buf_info.sw_cookie);
- return QDF_STATUS_E_INVAL;
- }
- *r_rx_desc = dp_rx_cookie_2_va_rxdma_buf(soc, buf_info.sw_cookie);
- return QDF_STATUS_SUCCESS;
- }
- bool dp_rx_chain_msdus_li(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;
- /* TODO: Currently only single radio is supported, hence
- * pdev hard coded to '0' index
- */
- 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->ppdu_id = hal_rx_get_ppdu_id(soc->hal_soc,
- rx_tlv_hdr);
- 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 (dp_pdev->ppdu_id == hal_rx_attn_phy_ppdu_id_get(soc->hal_soc,
- rx_tlv_hdr) &&
- hal_rx_attn_msdu_done_get(soc->hal_soc, rx_tlv_hdr)) {
- qdf_nbuf_set_rx_chfrag_end(nbuf, 1);
- 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;
- }
- static struct dp_soc *dp_rx_replensih_soc_get_li(struct dp_soc *soc,
- uint8_t chip_id)
- {
- return soc;
- }
- qdf_nbuf_t
- dp_rx_wbm_err_reap_desc_li(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[MAX_PDEV_CNT] = { NULL };
- union dp_rx_desc_list_elem_t *tail[MAX_PDEV_CNT] = { NULL };
- uint32_t rx_bufs_reaped[MAX_PDEV_CNT] = { 0 };
- uint8_t buf_type;
- 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;
- union hal_wbm_err_info_u wbm_err_info = { 0 };
- uint8_t msdu_continuation = 0;
- bool process_sg_buf = false;
- uint32_t wbm_err_src;
- QDF_STATUS status;
- struct dp_soc *replenish_soc;
- uint8_t chip_id = 0;
- struct hal_rx_mpdu_desc_info mpdu_desc_info = { 0 };
- uint8_t *rx_tlv_hdr;
- uint32_t peer_mdata;
- 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;
- /* XXX */
- buf_type = HAL_RX_WBM_BUF_TYPE_GET(ring_desc);
- if (dp_assert_always_internal_stat(
- buf_type == HAL_RX_WBM_BUF_TYPE_REL_BUF,
- soc, rx.err.wbm_err_buf_rel_type))
- continue;
- wbm_err_src = hal_rx_wbm_err_src_get(hal_soc, ring_desc);
- qdf_assert((wbm_err_src == HAL_RX_WBM_ERR_SRC_RXDMA) ||
- (wbm_err_src == HAL_RX_WBM_ERR_SRC_REO));
- if (soc->arch_ops.dp_wbm_get_rx_desc_from_hal_desc(soc,
- ring_desc,
- &rx_desc)) {
- dp_rx_err_err("get rx 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;
- }
- hal_rx_wbm_err_info_get(ring_desc, &wbm_err_info.info_bit,
- hal_soc);
- nbuf = rx_desc->nbuf;
- 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!",
- nbuf);
- rx_desc->in_err_state = 1;
- continue;
- }
- /* Update peer_id in nbuf cb */
- rx_tlv_hdr = qdf_nbuf_data(nbuf);
- peer_mdata = hal_rx_tlv_peer_meta_data_get(soc->hal_soc,
- rx_tlv_hdr);
- QDF_NBUF_CB_RX_PEER_ID(rx_desc->nbuf) =
- dp_rx_peer_metadata_peer_id_get(soc, peer_mdata);
- /* Get MPDU DESC info */
- hal_rx_mpdu_desc_info_get(hal_soc, ring_desc, &mpdu_desc_info);
- if (qdf_likely(mpdu_desc_info.mpdu_flags &
- HAL_MPDU_F_QOS_CONTROL_VALID))
- qdf_nbuf_set_tid_val(rx_desc->nbuf, mpdu_desc_info.tid);
- 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.info_bit))) {
- /* SG is detected from continuation bit */
- msdu_continuation =
- hal_rx_wbm_err_msdu_continuation_get(hal_soc,
- ring_desc);
- 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;
- }
- }
- /*
- * save the wbm desc info in nbuf CB/TLV. We will need this
- * info when we do the actual nbuf processing
- */
- wbm_err_info.info_bit.pool_id = rx_desc->pool_id;
- dp_rx_set_wbm_err_info_in_nbuf(soc, nbuf, wbm_err_info);
- rx_bufs_reaped[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->pool_id],
- &tail[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 (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;
- replenish_soc =
- dp_rx_replensih_soc_get_li(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[mac_id],
- &head[mac_id],
- &tail[mac_id]);
- *rx_bufs_used += rx_bufs_reaped[mac_id];
- }
- return nbuf_head;
- }
- QDF_STATUS
- dp_rx_null_q_desc_handle_li(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 = soc->arch_ops.dp_rx_chain_msdus(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,
- 0);
- 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), 0);
- 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), 0);
- 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,
- 0);
- 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,
- 0);
- 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;
- 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, 0);
- } 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), 0);
- /*
- * 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, 0);
- if (QDF_IS_ADDR_BROADCAST(eh->ether_dhost))
- DP_PEER_BC_INCC_PKT(txrx_peer, 1,
- qdf_nbuf_len(nbuf),
- enh_flag, 0);
- } else {
- DP_PEER_UC_INCC_PKT(txrx_peer, 1,
- qdf_nbuf_len(nbuf),
- enh_flag,
- 0);
- }
- 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;
- }
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