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qcacmn: Check return status of deliver to stack function

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Check the return status of the osif->rx function and in case
of failure drop the skb. This is needed when OOR error frame
is received and if the frame was not delivered to stack it
needs to be dropped.
Add error counter to periodic stats to determine how many Rx
packets were rejected or were dropped since deliver to
stack failed.
Add the new status check for delivering rx frames to stack
under MCC specific flag - DELIVERY_TO_STACK_STATUS_CHECK.

Change-Id: I9b1c795f168774669783cc601e68003a7747a279
CRs-Fixed: 2672498
This commit is contained in:
Nisha Menon
2020-04-27 18:52:06 -07:00
committed by nshrivas
parent 0668b9fc45
commit a2f5ca7c04
3 changed files with 72 additions and 6 deletions
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71
dp/wifi3.0/dp_rx.c
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@@ -1369,6 +1369,70 @@ dp_rx_enqueue_rx(struct dp_peer *peer, qdf_nbuf_t rx_buf_list)
}
#endif
#ifndef DELIVERY_TO_STACK_STATUS_CHECK
/**
* dp_rx_check_delivery_to_stack() - Deliver pkts to network
* using the appropriate call back functions.
* @soc: soc
* @vdev: vdev
* @peer: peer
* @nbuf_head: skb list head
* @nbuf_tail: skb list tail
*
* Return: None
*/
static void dp_rx_check_delivery_to_stack(struct dp_soc *soc,
struct dp_vdev *vdev,
struct dp_peer *peer,
qdf_nbuf_t nbuf_head)
{
/* Function pointer initialized only when FISA is enabled */
if (vdev->osif_fisa_rx)
/* on failure send it via regular path */
vdev->osif_fisa_rx(soc, vdev, nbuf_head);
else
vdev->osif_rx(vdev->osif_vdev, nbuf_head);
}
#else
/**
* dp_rx_check_delivery_to_stack() - Deliver pkts to network
* using the appropriate call back functions.
* @soc: soc
* @vdev: vdev
* @peer: peer
* @nbuf_head: skb list head
* @nbuf_tail: skb list tail
*
* Check the return status of the call back function and drop
* the packets if the return status indicates a failure.
*
* Return: None
*/
static void dp_rx_check_delivery_to_stack(struct dp_soc *soc,
struct dp_vdev *vdev,
struct dp_peer *peer,
qdf_nbuf_t nbuf_head)
{
int num_nbuf = 0;
QDF_STATUS ret_val = QDF_STATUS_E_FAILURE;
/* Function pointer initialized only when FISA is enabled */
if (vdev->osif_fisa_rx)
/* on failure send it via regular path */
ret_val = vdev->osif_fisa_rx(soc, vdev, nbuf_head);
else if (vdev->osif_rx)
ret_val = vdev->osif_rx(vdev->osif_vdev, nbuf_head);
if (!QDF_IS_STATUS_SUCCESS(ret_val)) {
num_nbuf = dp_rx_drop_nbuf_list(vdev->pdev, nbuf_head);
DP_STATS_INC(soc, rx.err.rejected, num_nbuf);
if (peer)
DP_STATS_DEC(peer, rx.to_stack.num, num_nbuf);
}
}
#endif /* ifdef DELIVERY_TO_STACK_STATUS_CHECK */
void dp_rx_deliver_to_stack(struct dp_soc *soc,
struct dp_vdev *vdev,
struct dp_peer *peer,
@@ -1409,12 +1473,7 @@ void dp_rx_deliver_to_stack(struct dp_soc *soc,
&nbuf_tail, peer->mac_addr.raw);
}
/* Function pointer initialized only when FISA is enabled */
if (vdev->osif_fisa_rx)
/* on failure send it via regular path */
vdev->osif_fisa_rx(soc, vdev, nbuf_head);
else
vdev->osif_rx(vdev->osif_vdev, nbuf_head);
dp_rx_check_delivery_to_stack(soc, vdev, peer, nbuf_head);
}
/**