From: Eyal Shapira Date: Tue, 2 Sep 2014 15:39:21 +0000 (+0300) Subject: iwlwifi: mvm: treat EAPOLs like mgmt frames wrt rate X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=aa11bbf3df026d6b1c6b528bef634fd9de7c2619;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git 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: [3.13+] Signed-off-by: Eyal Shapira Reviewed-by: Johannes Berg Signed-off-by: Emmanuel Grumbach --- diff --git a/drivers/net/wireless/iwlwifi/mvm/tx.c b/drivers/net/wireless/iwlwifi/mvm/tx.c index dbc870713882..9ee410bf6da2 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;