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qcacmn: Handle MIC error indication from Hardware

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Handle MIC error reported by Hardware and pass the event to hostapd.

Change-Id: I510808f1e714edab5d4ccc0a2e205988892ea162
This commit is contained in:
Gurumoorthi Gnanasambandhan
2017-08-07 11:53:16 +05:30
committed by snandini
parent 92af713fa2
commit 25607a7bb8
3 changed files with 92 additions and 0 deletions
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88
dp/wifi3.0/dp_rx_err.c
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@@ -598,6 +598,75 @@ fail:
return rx_bufs_used;
}
/**
* dp_rx_process_mic_error(): Function to pass mic error indication to umac
* @soc: DP SOC handle
* @rx_desc : pointer to the sw rx descriptor
* @head: pointer to head of rx descriptors to be added to free list
* @tail: pointer to tail of rx descriptors to be added to free list
*
* return: void
*/
static void
dp_rx_process_mic_error(struct dp_soc *soc, struct dp_rx_desc *rx_desc,
union dp_rx_desc_list_elem_t **head,
union dp_rx_desc_list_elem_t **tail)
{
struct dp_vdev *vdev = NULL;
struct dp_pdev *pdev = NULL;
struct ol_if_ops *tops = NULL;
qdf_nbuf_t nbuf;
struct ieee80211_frame *wh;
uint8_t *rx_pkt_hdr;
uint8_t *rx_tlv_hdr;
uint8_t i;
nbuf = rx_desc->nbuf;
qdf_nbuf_unmap_single(soc->osdev, nbuf, QDF_DMA_BIDIRECTIONAL);
rx_tlv_hdr = qdf_nbuf_data(nbuf);
if (!hal_rx_msdu_end_first_msdu_get(rx_tlv_hdr))
goto fail;
rx_pkt_hdr = hal_rx_pkt_hdr_get(qdf_nbuf_data(nbuf));
wh = (struct ieee80211_frame *)rx_pkt_hdr;
for (i = 0; i < MAX_PDEV_CNT; i++) {
pdev = soc->pdev_list[i];
if (!pdev) {
QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_DEBUG,
"PDEV not found");
continue;
}
TAILQ_FOREACH(vdev, &pdev->vdev_list, vdev_list_elem) {
if (qdf_mem_cmp(wh->i_addr1, vdev->mac_addr.raw,
DP_MAC_ADDR_LEN) == 0) {
goto out;
}
}
}
if (!vdev) {
QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_ERROR,
"VDEV not found");
goto fail;
}
out:
tops = pdev->soc->cdp_soc.ol_ops;
if (tops->rx_mic_error)
tops->rx_mic_error(pdev->osif_pdev, vdev->vdev_id, wh);
fail:
qdf_nbuf_free(rx_desc->nbuf);
dp_rx_add_to_free_desc_list(&head[rx_desc->pool_id],
&tail[rx_desc->pool_id], rx_desc);
return;
}
/**
* dp_rx_link_desc_return() - Return a MPDU link descriptor to HW
* (WBM), following error handling
@@ -949,6 +1018,20 @@ dp_rx_wbm_err_process(struct dp_soc *soc, void *hal_ring, uint32_t quota)
quota);
continue;
case HAL_RXDMA_ERR_TKIP_MIC:
dp_rx_process_mic_error(soc,
rx_desc,
&head[pool_id],
&tail[pool_id]);
rx_bufs_used[pool_id]++;
continue;
case HAL_RXDMA_ERR_DECRYPT:
QDF_TRACE(QDF_MODULE_ID_DP,
QDF_TRACE_LEVEL_ERROR,
"Packet received with Decrypt error");
break;
default:
QDF_TRACE(QDF_MODULE_ID_DP,
QDF_TRACE_LEVEL_ERROR,
@@ -1089,6 +1172,11 @@ dp_rx_err_mpdu_pop(struct dp_soc *soc, uint32_t mac_id,
DP_STATS_INC(soc, rx.err.rxdma_error[rxdma_error_code], 1);
if (rxdma_error_code == HAL_RXDMA_ERR_DECRYPT) {
QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_ERROR,
"Packet received with Decrypt error");
}
return rx_bufs_used;
}