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qcacmn: Drop msdu with len err in rx attn tlvs

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Drop msdus received with len err set to 1 in
rx attention tlvs.

Change-Id: I8e754a6023874262406c050047ebf013e8b1d589
CRs-Fixed: 2941873
This commit is contained in:
Yeshwanth Sriram Guntuka 2021-04-09 10:58:08 +05:30 • committed by Madan Koyyalamudi
commit 2b10eb6175
3 changed files with 31 additions and 0 deletions
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7
dp/wifi3.0/dp_rx.c
View file

@ -2710,6 +2710,13 @@ done:
vdev_id = QDF_NBUF_CB_RX_VDEV_ID(nbuf);
peer_id = QDF_NBUF_CB_RX_PEER_ID(nbuf);
if (qdf_unlikely(hal_rx_attn_msdu_len_err_get(rx_tlv_hdr))) {
DP_STATS_INC(soc, rx.err.msdu_len_err, 1);
qdf_nbuf_free(nbuf);
nbuf = next;
continue;
}
if (dp_rx_is_list_ready(deliver_list_head, vdev, peer,
peer_id, vdev_id)) {
dp_rx_deliver_to_stack(soc, vdev, peer,

2
dp/wifi3.0/dp_types.h
View file

@ -1036,6 +1036,8 @@ struct dp_soc_stats {
uint32_t intrabss_eapol_drop;
/* Non Eapol pkt drop cnt due to peer not authorized */
uint32_t peer_unauth_rx_pkt_drop;
/* MSDU len err count */
uint32_t msdu_len_err;
} err;
/* packet count per core - per ring */

22
hal/wifi3.0/hal_rx.h
View file

@ -4035,4 +4035,26 @@ uint32_t hal_rx_attn_offset_get(hal_soc_handle_t hal_soc_hdl)
return hal_soc->ops->hal_rx_attn_offset_get();
}
#define HAL_RX_ATTN_MSDU_LEN_ERR_GET(_rx_attn) \
(_HAL_MS((*_OFFSET_TO_WORD_PTR(_rx_attn, \
RX_ATTENTION_1_MSDU_LENGTH_ERR_OFFSET)), \
RX_ATTENTION_1_MSDU_LENGTH_ERR_MASK, \
RX_ATTENTION_1_MSDU_LENGTH_ERR_LSB))
/**
* hal_rx_attn_msdu_len_err_get(): Get msdu_len_err value from
* rx attention tlvs
* @buf: pointer to rx pkt tlvs hdr
*
* Return: msdu_len_err value
*/
static inline uint32_t
hal_rx_attn_msdu_len_err_get(uint8_t *buf)
{
struct rx_pkt_tlvs *pkt_tlvs = (struct rx_pkt_tlvs *)buf;
struct rx_attention *rx_attn = &pkt_tlvs->attn_tlv.rx_attn;
return HAL_RX_ATTN_MSDU_LEN_ERR_GET(rx_attn);
}
#endif /* _HAL_RX_H */