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qcacld-3.0: Add peer unmap timeout handler

Browse source 
Add a timeout handler that fires off 6000 ms after peer detach
operation is initiated. Used for debugging the scenario of missing
peer unmap events after deleting a STA type peer.

CRs-Fixed: 1109867
Change-Id: Iad18f374ba3c1458c5214befd1d5c1517a7bdedf
This commit is contained in:
Deepak Dhamdhere 2017-01-13 01:54:02 -08:00 • committed by snandini
commit e1c2e21a3d
3 changed files with 43 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

38
core/dp/txrx/ol_txrx.c
View file

@ -2458,7 +2458,6 @@ ol_txrx_peer_attach(struct cdp_vdev *pvdev, uint8_t *peer_mac_addr)
qdf_atomic_set(&peer->fw_create_pending, 1);
qdf_atomic_inc(&peer->ref_cnt);
peer->valid = 1;
ol_txrx_peer_find_hash_add(pdev, peer);
@ -3148,6 +3147,11 @@ int ol_txrx_peer_unref_delete(ol_txrx_peer_handle peer)
vdev->wait_on_peer_id = OL_TXRX_INVALID_LOCAL_PEER_ID;
}
if (vdev->opmode == wlan_op_mode_sta) {
qdf_mc_timer_stop(&peer->peer_unmap_timer);
qdf_mc_timer_destroy(&peer->peer_unmap_timer);
}
/* check whether the parent vdev has no peers left */
if (TAILQ_EMPTY(&vdev->peer_list)) {
/*
@ -3285,6 +3289,27 @@ static QDF_STATUS ol_txrx_clear_peer(struct cdp_pdev *ppdev, uint8_t sta_id)
}
/**
* peer_unmap_timer() - peer unmap timer function
* @data: peer object pointer
*
* Return: none
*/
void peer_unmap_timer_handler(void *data)
{
ol_txrx_peer_handle peer = (ol_txrx_peer_handle)data;
ol_txrx_err("all unmap events not received for peer %p, ref_cnt %d",
peer, qdf_atomic_read(&peer->ref_cnt));
ol_txrx_err("peer %p (%02x:%02x:%02x:%02x:%02x:%02x)",
peer,
peer->mac_addr.raw[0], peer->mac_addr.raw[1],
peer->mac_addr.raw[2], peer->mac_addr.raw[3],
peer->mac_addr.raw[4], peer->mac_addr.raw[5]);
QDF_BUG(0);
}
/**
* ol_txrx_peer_detach() - Delete a peer's data object.
* @peer - the object to detach
@ -3337,6 +3362,17 @@ static void ol_txrx_peer_detach(void *ppeer)
*/
qdf_atomic_set(&peer->delete_in_progress, 1);
/*
* Create a timer to track unmap events when the sta peer gets deleted.
*/
if (vdev->opmode == wlan_op_mode_sta) {
qdf_mc_timer_init(&peer->peer_unmap_timer, QDF_TIMER_TYPE_SW,
peer_unmap_timer_handler, peer);
qdf_mc_timer_start(&peer->peer_unmap_timer,
OL_TXRX_PEER_UNMAP_TIMEOUT);
ol_txrx_info("started peer_unmap_timer for peer %p", peer);
}
/*
* Remove the reference added during peer_attach.
* The peer will still be left allocated until the

2
core/dp/txrx/ol_txrx.h
View file

@ -123,4 +123,6 @@ void *ol_txrx_find_peer_by_addr(struct cdp_pdev *pdev,
uint8_t *peer_id);
void htt_pkt_log_init(struct cdp_pdev *pdev_handle, void *scn);
void peer_unmap_timer_handler(void *data);
#endif /* _OL_TXRX__H_ */

4
core/dp/txrx/ol_txrx_types.h
View file

@ -1117,6 +1117,9 @@ typedef A_STATUS (*ol_tx_filter_func)(struct ol_txrx_msdu_info_t *
#define OL_TXRX_PEER_SECURITY_UNICAST 1
#define OL_TXRX_PEER_SECURITY_MAX 2
/* Allow 6000 ms to receive peer unmap events after peer is deleted */
#define OL_TXRX_PEER_UNMAP_TIMEOUT (6000)
struct ol_txrx_peer_t {
struct ol_txrx_vdev_t *vdev;
@ -1226,6 +1229,7 @@ struct ol_txrx_peer_t {
qdf_time_t last_disassoc_rcvd;
qdf_time_t last_deauth_rcvd;
qdf_atomic_t fw_create_pending;
qdf_mc_timer_t peer_unmap_timer;
};
struct ol_rx_remote_data {