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qcacmn: Set LRO hash keys based on PDEV flag

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Currently dp_lro_hash_setup is being done in dp_vdev_attach_wifi3 when
pdev->vdev_count==1. However, this counter is not getting decremented and
may overflow on repeated VDEV attach/detach calls. This may result in
LRO keys being programmed again.
Use a PDEV flag to determine whether to configure LRO or not. Fix
pdev->vdev_count by decrementing it during VDEV detach.

Change-Id: I03cba0d95c30831fbe8047828f7bb2cf4a869213
CRs-Fixed: 2906871
This commit is contained in:
Mohit Khanna 2021-04-06 03:13:34 -07:00 • committed by snandini
commit 5616aa6f41
2 changed files with 11 additions and 3 deletions
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11
dp/wifi3.0/dp_main.c
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@ -5537,7 +5537,6 @@ static QDF_STATUS dp_vdev_attach_wifi3(struct cdp_soc_t *cdp_soc,
qdf_spinlock_create(&vdev->peer_list_lock);
TAILQ_INIT(&vdev->peer_list);
dp_peer_multipass_list_init(vdev);
if ((soc->intr_mode == DP_INTR_POLL) &&
wlan_cfg_get_num_contexts(soc->wlan_cfg_ctx) != 0) {
if ((pdev->vdev_count == 0) ||
@ -5574,14 +5573,19 @@ static QDF_STATUS dp_vdev_attach_wifi3(struct cdp_soc_t *cdp_soc,
vdev->ap_bridge_enabled = true;
else
vdev->ap_bridge_enabled = false;
QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_INFO,
"%s: wlan_cfg_ap_bridge_enabled %d",
__func__, vdev->ap_bridge_enabled);
dp_tx_vdev_attach(vdev);
if (pdev->vdev_count == 1)
dp_lro_hash_setup(soc, pdev);
if (!pdev->is_lro_hash_configured) {
if (QDF_IS_STATUS_SUCCESS(dp_lro_hash_setup(soc, pdev)))
pdev->is_lro_hash_configured = true;
else
dp_err("LRO hash setup failure!");
}
dp_info("Created vdev %pK ("QDF_MAC_ADDR_FMT")", vdev,
QDF_MAC_ADDR_REF(vdev->mac_addr.raw));
@ -5836,6 +5840,7 @@ static QDF_STATUS dp_vdev_detach_wifi3(struct cdp_soc_t *cdp_soc,
if (vdev->opmode != wlan_op_mode_monitor)
dp_vdev_pdev_list_remove(soc, pdev, vdev);
pdev->vdev_count--;
/* release reference taken above for find */
dp_vdev_unref_delete(soc, vdev, DP_MOD_ID_CDP);

3
dp/wifi3.0/dp_types.h
View file

@ -2323,6 +2323,9 @@ struct dp_pdev {
#endif
qdf_nbuf_t mcopy_status_nbuf;
/* flag to indicate whether LRO hash command has been sent to FW */
uint8_t is_lro_hash_configured;
/* Flag to hold on to monitor destination ring */
bool hold_mon_dest_ring;