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qcacmn: Drop MPDUs for some RXDMA errors

Browse source 
Drop MPDUs received with rxdma_overflow_err, rxdma_flush
or rxdma_mpdu_length_err errors on monitor RXDMA2SW ring
since Rx TLVs are not populated properly by HW.

Change-Id: I3d4399f4c2b4bbe21e9f6b1b24369a633e964154
CRs-Fixed: 2233141
This commit is contained in:
Karunakar Dasineni 2018-05-07 15:09:46 -07:00 • committed by nshrivas
commit bb7848e5b6
3 changed files with 30 additions and 23 deletions
Download patch file Download diff file Expand all files Collapse all files

1
dp/inc/cdp_txrx_mon_struct.h
View file

@ -225,5 +225,6 @@ struct cdp_pdev_mon_stats {
uint32_t status_ppdu_done;
uint32_t dest_ppdu_done;
uint32_t dest_mpdu_done;
uint32_t dest_mpdu_drop;
};
#endif

2
dp/wifi3.0/dp_main.c
View file

@ -5228,6 +5228,8 @@ dp_print_pdev_rx_mon_stats(struct dp_pdev *pdev)
rx_mon_stats->dest_ppdu_done);
DP_PRINT_STATS("dest_mpdu_done_cnt = %d",
rx_mon_stats->dest_mpdu_done);
DP_PRINT_STATS("dest_mpdu_drop_cnt = %d",
rx_mon_stats->dest_mpdu_drop);
}
/**

50
dp/wifi3.0/dp_rx_mon_dest.c
View file

@ -145,7 +145,7 @@ dp_rx_mon_mpdu_pop(struct dp_soc *soc, uint32_t mac_id,
uint32_t i;
uint32_t total_frag_len = 0, frag_len = 0;
bool is_frag, is_first_msdu;
bool check_ppdu_id = true;
bool drop_mpdu = false;
msdu = 0;
last_ppdu_id = dp_pdev->ppdu_info.com_info.last_ppdu_id;
@ -156,10 +156,16 @@ dp_rx_mon_mpdu_pop(struct dp_soc *soc, uint32_t mac_id,
&p_last_buf_addr_info, &msdu_cnt);
if ((hal_rx_reo_ent_rxdma_push_reason_get(rxdma_dst_ring_desc) ==
HAL_RX_WBM_RXDMA_PSH_RSN_ERROR) &&
qdf_unlikely(hal_rx_reo_ent_rxdma_error_code_get(
rxdma_dst_ring_desc) == HAL_RXDMA_ERR_FLUSH_REQUEST)) {
check_ppdu_id = false;
HAL_RX_WBM_RXDMA_PSH_RSN_ERROR)) {
uint8_t rxdma_err =
hal_rx_reo_ent_rxdma_error_code_get(
rxdma_dst_ring_desc);
if (qdf_unlikely((rxdma_err == HAL_RXDMA_ERR_FLUSH_REQUEST) ||
(rxdma_err == HAL_RXDMA_ERR_MPDU_LENGTH) ||
(rxdma_err == HAL_RXDMA_ERR_OVERFLOW))) {
drop_mpdu = true;
dp_pdev->rx_mon_stats.dest_mpdu_drop++;
}
}
is_frag = false;
@ -189,6 +195,12 @@ dp_rx_mon_mpdu_pop(struct dp_soc *soc, uint32_t mac_id,
rx_desc->unmapped = 1;
}
if (drop_mpdu) {
qdf_nbuf_free(msdu);
msdu = NULL;
goto next_msdu;
}
data = qdf_nbuf_data(msdu);
rx_desc_tlv = HAL_RX_MON_DEST_GET_DESC(data);
@ -200,13 +212,10 @@ dp_rx_mon_mpdu_pop(struct dp_soc *soc, uint32_t mac_id,
__func__, i, *ppdu_id,
last_ppdu_id, num_msdus);
if (qdf_likely(check_ppdu_id)) {
if (is_first_msdu) {
msdu_ppdu_id =
HAL_RX_HW_DESC_GET_PPDUID_GET(
if (is_first_msdu) {
msdu_ppdu_id = HAL_RX_HW_DESC_GET_PPDUID_GET(
rx_desc_tlv);
is_first_msdu = false;
}
is_first_msdu = false;
QDF_TRACE(QDF_MODULE_ID_DP,
QDF_TRACE_LEVEL_DEBUG,
@ -215,7 +224,7 @@ dp_rx_mon_mpdu_pop(struct dp_soc *soc, uint32_t mac_id,
if (*ppdu_id > msdu_ppdu_id)
QDF_TRACE(QDF_MODULE_ID_DP,
QDF_TRACE_LEVEL_WARN,
QDF_TRACE_LEVEL_DEBUG,
"[%s][%d] ppdu_id=%d "
"msdu_ppdu_id=%d\n",
__func__, __LINE__, *ppdu_id,
@ -293,8 +302,6 @@ dp_rx_mon_mpdu_pop(struct dp_soc *soc, uint32_t mac_id,
qdf_assert_always(0);
}
#endif
rx_bufs_used++;
QDF_TRACE(QDF_MODULE_ID_DP,
QDF_TRACE_LEVEL_DEBUG,
"%s: rx_pkt_offset=%d, l2_hdr_offset=%d, msdu_len=%d, addr=%p skb->len %lu",
@ -310,6 +317,8 @@ dp_rx_mon_mpdu_pop(struct dp_soc *soc, uint32_t mac_id,
}
last = msdu;
next_msdu:
rx_bufs_used++;
dp_rx_add_to_free_desc_list(head,
tail, rx_desc);
}
@ -799,16 +808,11 @@ void dp_rx_mon_dest_process(struct dp_soc *soc, uint32_t mac_id, uint32_t quota)
ppdu_id, pdev->ppdu_info.com_info.ppdu_id);
break;
}
if (qdf_unlikely(head_msdu == NULL) ||
qdf_unlikely(tail_msdu == NULL)) {
QDF_TRACE(QDF_MODULE_ID_TXRX, QDF_TRACE_LEVEL_ERROR,
"%s %d : Head_msdu or Tail_msdu is NULL !!\n",
__func__, __LINE__);
break;
}
rx_mon_stats->dest_mpdu_done++;
dp_rx_mon_deliver(soc, mac_id, head_msdu, tail_msdu);
if (qdf_likely((head_msdu != NULL) && (tail_msdu != NULL))) {
rx_mon_stats->dest_mpdu_done++;
dp_rx_mon_deliver(soc, mac_id, head_msdu, tail_msdu);
}
rxdma_dst_ring_desc = hal_srng_dst_get_next(hal_soc,
mon_dst_srng);