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mac80211: adhere to Tx control flag that prevents frame reordering

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When the Tx control flag is set to prevent frame reordering, send
all frames that have this flag set on the same queue. This assures
that frames that have this flag set are not reordered relative to
other frames that have this flag set.

Signed-off-by: Mathy Vanhoef <Mathy.Vanhoef@kuleuven.be>
Link: https://lore.kernel.org/r/20201104061823.197407-3-Mathy.Vanhoef@kuleuven.be
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Mathy Vanhoef 2020-11-04 10:18:20 +04:00 committed by Johannes Berg
parent 30df81301c
commit 66d06c8473
1 changed files with 5 additions and 2 deletions
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7
net/mac80211/wme.c
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@ -118,9 +118,11 @@ u16 ieee80211_select_queue_80211(struct ieee80211_sub_if_data *sdata,
struct ieee80211_hdr *hdr)
{
struct ieee80211_local *local = sdata->local;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
u8 *p;
if (local->hw.queues < IEEE80211_NUM_ACS)
if ((info->control.flags & IEEE80211_TX_CTRL_DONT_REORDER) ||
local->hw.queues < IEEE80211_NUM_ACS)
return 0;
if (!ieee80211_is_data(hdr->frame_control)) {
@ -141,6 +143,7 @@ u16 ieee80211_select_queue_80211(struct ieee80211_sub_if_data *sdata,
u16 __ieee80211_select_queue(struct ieee80211_sub_if_data *sdata,
struct sta_info *sta, struct sk_buff *skb)
{
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
struct mac80211_qos_map *qos_map;
bool qos;
@ -153,7 +156,7 @@ u16 __ieee80211_select_queue(struct ieee80211_sub_if_data *sdata,
else
qos = false;
if (!qos) {
if (!qos || (info->control.flags & IEEE80211_TX_CTRL_DONT_REORDER)) {
skb->priority = 0; /* required for correct WPA/11i MIC */
return IEEE80211_AC_BE;
}