If the driver supports hardware TX fragmentation, don't fragment
packets in the stack.
Signed-off-by: Arik Nemtsov <arik@xxxxxxxxxx>
---
net/mac80211/tx.c | 8 ++++++--
1 files changed, 6 insertions(+), 2 deletions(-)
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 96c5943..b7d38c5 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -1033,6 +1033,7 @@ static bool __ieee80211_parse_tx_radiotap(struct ieee80211_tx_data *tx,
struct ieee80211_radiotap_header *rthdr =
(struct ieee80211_radiotap_header *) skb->data;
struct ieee80211_supported_band *sband;
+ u32 hw_flags = tx->local->hw.flags;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
int ret = ieee80211_radiotap_iterator_init(&iterator, rthdr, skb->len,
NULL);
@@ -1078,7 +1079,8 @@ static bool __ieee80211_parse_tx_radiotap(struct ieee80211_tx_data *tx,
}
if (*iterator.this_arg & IEEE80211_RADIOTAP_F_WEP)
info->flags &= ~IEEE80211_TX_INTFL_DONT_ENCRYPT;
- if (*iterator.this_arg & IEEE80211_RADIOTAP_F_FRAG)
+ if ((*iterator.this_arg & IEEE80211_RADIOTAP_F_FRAG) &&
+ !(hw_flags & IEEE80211_HW_TX_FRAGMENTATION))
tx->flags |= IEEE80211_TX_FRAGMENTED;
break;
@@ -1181,8 +1183,10 @@ ieee80211_tx_prepare(struct ieee80211_sub_if_data *sdata,
/*
* Set this flag (used below to indicate "automatic fragmentation"),
* it will be cleared/left by radiotap as desired.
+ * Only valid when fragmentation is done by the stack.
*/
- tx->flags |= IEEE80211_TX_FRAGMENTED;
+ if (!(local->hw.flags & IEEE80211_HW_TX_FRAGMENTATION))
+ tx->flags |= IEEE80211_TX_FRAGMENTED;
/* process and remove the injection radiotap header */
if (unlikely(info->flags & IEEE80211_TX_INTFL_HAS_RADIOTAP)) {
--
1.7.1
--
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