Add a new radiotap flag to indicate injected frames must not be
reordered relative to other frames that also have this flag set,
independent of priority field values in the transmitted frame.
Parse this radiotap flag and define and set a corresponding Tx
control flag.
Signed-off-by: Mathy Vanhoef <Mathy.Vanhoef@xxxxxxxxxxx>
---
include/net/ieee80211_radiotap.h | 1 +
include/net/mac80211.h | 4 ++++
net/mac80211/tx.c | 3 +++
3 files changed, 8 insertions(+)
diff --git a/include/net/ieee80211_radiotap.h b/include/net/ieee80211_radiotap.h
index 19c00d100..c0854933e 100644
--- a/include/net/ieee80211_radiotap.h
+++ b/include/net/ieee80211_radiotap.h
@@ -118,6 +118,7 @@ enum ieee80211_radiotap_tx_flags {
IEEE80211_RADIOTAP_F_TX_RTS = 0x0004,
IEEE80211_RADIOTAP_F_TX_NOACK = 0x0008,
IEEE80211_RADIOTAP_F_TX_NOSEQNO = 0x0010,
+ IEEE80211_RADIOTAP_F_TX_ORDER = 0x0020,
};
/* for IEEE80211_RADIOTAP_MCS "have" flags */
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 4e23ad385..d0f5c8f27 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -827,6 +827,9 @@ enum mac80211_tx_info_flags {
* (header conversion)
* @IEEE80211_TX_CTRL_NO_SEQNO: Do not overwrite the sequence number that
* has already been assigned to this frame.
+ * @IEEE80211_TX_CTRL_DONT_REORDER: This frame should not be reordered
+ * relative to other frames that have this flag set, independent
+ * of their QoS TID or other priority field values.
*
* These flags are used in tx_info->control.flags.
*/
@@ -839,6 +842,7 @@ enum mac80211_tx_control_flags {
IEEE80211_TX_CTRL_SKIP_MPATH_LOOKUP = BIT(5),
IEEE80211_TX_CTRL_HW_80211_ENCAP = BIT(6),
IEEE80211_TX_CTRL_NO_SEQNO = BIT(7),
+ IEEE80211_TX_CTRL_DONT_REORDER = BIT(8),
};
/*
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index dac73baeb..23fa19148 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -2097,6 +2097,9 @@ bool ieee80211_parse_tx_radiotap(struct sk_buff *skb,
info->flags |= IEEE80211_TX_CTL_NO_ACK;
if (txflags & IEEE80211_RADIOTAP_F_TX_NOSEQNO)
info->control.flags |= IEEE80211_TX_CTRL_NO_SEQNO;
+ if (txflags & IEEE80211_RADIOTAP_F_TX_ORDER)
+ info->control.flags |=
+ IEEE80211_TX_CTRL_DONT_REORDER;
break;
case IEEE80211_RADIOTAP_RATE:
--
2.27.0
