diff options
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-agn.c')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-agn.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c index 22c0149e5d4a..c735a39ec176 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn.c @@ -3639,6 +3639,44 @@ out_exit: IWL_DEBUG_MAC80211(priv, "leave\n"); } +static void iwl_mac_flush(struct ieee80211_hw *hw, bool drop) +{ + struct iwl_priv *priv = hw->priv; + + mutex_lock(&priv->mutex); + IWL_DEBUG_MAC80211(priv, "enter\n"); + + /* do not support "flush" */ + if (!priv->cfg->ops->lib->txfifo_flush) + goto done; + + if (test_bit(STATUS_EXIT_PENDING, &priv->status)) { + IWL_DEBUG_TX(priv, "Aborting flush due to device shutdown\n"); + goto done; + } + if (iwl_is_rfkill(priv)) { + IWL_DEBUG_TX(priv, "Aborting flush due to RF Kill\n"); + goto done; + } + + /* + * mac80211 will not push any more frames for transmit + * until the flush is completed + */ + if (drop) { + IWL_DEBUG_MAC80211(priv, "send flush command\n"); + if (priv->cfg->ops->lib->txfifo_flush(priv, IWL_DROP_ALL)) { + IWL_ERR(priv, "flush request fail\n"); + goto done; + } + } + IWL_DEBUG_MAC80211(priv, "wait transmit/flush all frames\n"); + iwlagn_wait_tx_queue_empty(priv); +done: + mutex_unlock(&priv->mutex); + IWL_DEBUG_MAC80211(priv, "leave\n"); +} + /***************************************************************************** * * driver setup and teardown @@ -3812,6 +3850,7 @@ static struct ieee80211_ops iwl_hw_ops = { .sta_add = iwlagn_mac_sta_add, .sta_remove = iwl_mac_sta_remove, .channel_switch = iwl_mac_channel_switch, + .flush = iwl_mac_flush, }; static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) |