iwlwifi: dvm: advertise NETIF_F_SG

If the transport supports it, advertise NETIF_F_SG to mac80211 to
be able to use frag SKBs. This will already improve performance by
allowing software GSO to be used.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>

diff --git a/drivers/net/wireless/intel/iwlwifi/dvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/dvm/mac80211.c
index a9d8b51..f4c2529 100644 (file)
--- a/drivers/net/wireless/intel/iwlwifi/dvm/mac80211.c
+++ b/drivers/net/wireless/intel/iwlwifi/dvm/mac80211.c
@@ -115,6 +115,9 @@ int iwlagn_mac_setup_register(struct iwl_priv *priv,
        ieee80211_hw_set(hw, SUPPORT_FAST_XMIT);
        ieee80211_hw_set(hw, WANT_MONITOR_VIF);
 
+       if (priv->trans->max_skb_frags)
+               hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG;
+
        hw->offchannel_tx_hw_queue = IWL_AUX_QUEUE;
        hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FMT;