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authorEyal Shapira <eyal@wizery.com>2014-09-02 18:39:21 +0300
committerEmmanuel Grumbach <emmanuel.grumbach@intel.com>2014-09-08 09:17:29 +0300
commitaa11bbf3df026d6b1c6b528bef634fd9de7c2619 (patch)
tree262465d0cccab84a68c1b2cac84e7338fc108af0 /drivers/net/wireless
parent1bc10d3b509cf9f55a516c1e6dd0716f5e8fefd7 (diff)
downloadop-kernel-dev-aa11bbf3df026d6b1c6b528bef634fd9de7c2619.zip
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iwlwifi: mvm: treat EAPOLs like mgmt frames wrt rate
Using the LQ table which is initially set according to the rssi could lead to EAPOLs being sent in high legacy rates like 54mbps. It's better to avoid sending EAPOLs in high rates as it reduces the chances of a successful 4-Way handshake. Avoid this and treat them like other mgmt frames which would initially get sent at the basic rate. Cc: <stable@vger.kernel.org> [3.13+] Signed-off-by: Eyal Shapira <eyalx.shapira@intel.com> Reviewed-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Diffstat (limited to 'drivers/net/wireless')
-rw-r--r--drivers/net/wireless/iwlwifi/mvm/tx.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/net/wireless/iwlwifi/mvm/tx.c b/drivers/net/wireless/iwlwifi/mvm/tx.c
index dbc8707..9ee410b 100644
--- a/drivers/net/wireless/iwlwifi/mvm/tx.c
+++ b/drivers/net/wireless/iwlwifi/mvm/tx.c
@@ -168,10 +168,14 @@ static void iwl_mvm_set_tx_cmd_rate(struct iwl_mvm *mvm,
/*
* for data packets, rate info comes from the table inside the fw. This
- * table is controlled by LINK_QUALITY commands
+ * table is controlled by LINK_QUALITY commands. Exclude ctrl port
+ * frames like EAPOLs which should be treated as mgmt frames. This
+ * avoids them being sent initially in high rates which increases the
+ * chances for completion of the 4-Way handshake.
*/
- if (ieee80211_is_data(fc) && sta) {
+ if (ieee80211_is_data(fc) && sta &&
+ !(info->control.flags & IEEE80211_TX_CTRL_PORT_CTRL_PROTO)) {
tx_cmd->initial_rate_index = 0;
tx_cmd->tx_flags |= cpu_to_le32(TX_CMD_FLG_STA_RATE);
return;
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