diff mbox series

[16/20] iwlwifi: mvm: Allow retries for probe responses

Message ID 20190215114924.2545-17-luca@coelho.fi (mailing list archive)
State Accepted
Delegated to: Luca Coelho
Headers show
Series iwlwifi: updates intended for v5.1 2019-02-15 | expand

Commit Message

Luca Coelho Feb. 15, 2019, 11:49 a.m. UTC 
From: Ilan Peer <ilan.peer@intel.com>

When hostapd sends a probe response, it does not request an
acknowledgment on the probe response. This setting is propagated
to the driver and FW from mac80211, and as a result probe responses
are transmitted only once without retries. In congested
environments, this reduces the likelihood for finding the AP.

To overcome this, enable acknowledgment and retries for probe
responses, even in case no acknowledgment is requested. In such
a case the retry limit is set to 3.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/intel/iwlwifi/mvm/tx.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c
index b82b2f062c95..d01998853d1f 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c
@@ -209,7 +209,9 @@  void iwl_mvm_set_tx_cmd(struct iwl_mvm *mvm, struct sk_buff *skb,
 	u16 offload_assist = 0;
 	u8 ac;
 
-	if (!(info->flags & IEEE80211_TX_CTL_NO_ACK))
+	if (!(info->flags & IEEE80211_TX_CTL_NO_ACK) ||
+	    (ieee80211_is_probe_resp(fc) &&
+	     !is_multicast_ether_addr(hdr->addr1)))
 		tx_flags |= TX_CMD_FLG_ACK;
 	else
 		tx_flags &= ~TX_CMD_FLG_ACK;