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qcacmn: Check for valid peer_id in exception path

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Sometime DP might receive a exception packet with
already deleted peer id. Added a check to avoid sending
such packets.

Change-Id: Ib43d55c7930e4ddc7550d486505a56cb48e85afe
CRs-Fixed: 3285034
This commit is contained in:
Sai Rupesh Chevuru
2022-09-12 21:07:25 +05:30
committed by Madan Koyyalamudi
parent 5e42bbc352
commit c16d4c0cd9
3 changed files with 23 additions and 2 deletions
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1
dp/inc/cdp_txrx_stats_struct.h
View File

@@ -1826,6 +1826,7 @@ struct cdp_tx_ingress_stats {
uint32_t headroom_insufficient;
uint32_t fail_per_pkt_vdev_id_check;
uint32_t drop_ingress;
uint32_t invalid_peer_id_in_exc_path;
} dropped;
/* Mesh packets info */

9
dp/wifi3.0/dp_stats.c
View File

@@ -7437,6 +7437,8 @@ dp_print_pdev_tx_stats(struct dp_pdev *pdev)
pdev->stats.tx_i.dropped.res_full);
DP_PRINT_STATS(" Drop Ingress = %u",
pdev->stats.tx_i.dropped.drop_ingress);
DP_PRINT_STATS(" invalid peer id in exception path = %u",
pdev->stats.tx_i.dropped.invalid_peer_id_in_exc_path);
DP_PRINT_STATS("Tx failed = %u",
pdev->stats.tx.tx_failed);
DP_PRINT_STATS(" FW removed Pkts = %u",
@@ -8721,7 +8723,8 @@ void dp_update_vdev_ingress_stats(struct dp_vdev *tgtobj)
tgtobj->stats.tx_i.dropped.desc_na.num +
tgtobj->stats.tx_i.dropped.res_full +
tgtobj->stats.tx_i.dropped.drop_ingress +
tgtobj->stats.tx_i.dropped.headroom_insufficient;
tgtobj->stats.tx_i.dropped.headroom_insufficient +
tgtobj->stats.tx_i.dropped.invalid_peer_id_in_exc_path;
}
void dp_update_vdev_rate_stats(struct cdp_vdev_stats *tgtobj,
@@ -8772,6 +8775,7 @@ void dp_update_pdev_ingress_stats(struct dp_pdev *tgtobj,
DP_STATS_AGGR(tgtobj, srcobj, tx_i.dropped.res_full);
DP_STATS_AGGR(tgtobj, srcobj, tx_i.dropped.drop_ingress);
DP_STATS_AGGR(tgtobj, srcobj, tx_i.dropped.headroom_insufficient);
DP_STATS_AGGR(tgtobj, srcobj, tx_i.dropped.invalid_peer_id_in_exc_path);
DP_STATS_AGGR(tgtobj, srcobj, tx_i.cce_classified);
DP_STATS_AGGR(tgtobj, srcobj, tx_i.cce_classified_raw);
DP_STATS_AGGR_PKT(tgtobj, srcobj, tx_i.sniffer_rcvd);
@@ -8790,7 +8794,8 @@ void dp_update_pdev_ingress_stats(struct dp_pdev *tgtobj,
tgtobj->stats.tx_i.dropped.desc_na.num +
tgtobj->stats.tx_i.dropped.res_full +
tgtobj->stats.tx_i.dropped.drop_ingress +
tgtobj->stats.tx_i.dropped.headroom_insufficient;
tgtobj->stats.tx_i.dropped.headroom_insufficient +
tgtobj->stats.tx_i.dropped.invalid_peer_id_in_exc_path;
}
QDF_STATUS dp_txrx_get_soc_stats(struct cdp_soc_t *soc_hdl,

15
dp/wifi3.0/dp_tx.c
View File

@@ -3134,6 +3134,21 @@ dp_tx_send_exception(struct cdp_soc_t *soc_hdl, uint8_t vdev_id,
goto fail;
}
/* for peer based metadata check if peer is valid */
if (tx_exc_metadata->peer_id != CDP_INVALID_PEER) {
struct dp_peer *peer = NULL;
peer = dp_peer_get_ref_by_id(vdev->pdev->soc,
tx_exc_metadata->peer_id,
DP_MOD_ID_TX_EXCEPTION);
if (qdf_unlikely(!peer)) {
DP_STATS_INC(vdev,
tx_i.dropped.invalid_peer_id_in_exc_path,
1);
goto fail;
}
dp_peer_unref_delete(peer, DP_MOD_ID_TX_EXCEPTION);
}
/* Basic sanity checks for unsupported packets */
/* MESH mode */