openwrtv3/package/kernel/mac80211/patches/310-ath9k-fix-moredata-bit-in-PS-buffered-frame-release.patch
Hauke Mehrtens a8f63a0717 mac80211: update to backports-4.14-rc2
This updates mac80211 to backprots-4.14-rc2.
This was compile and runtime tested with ath9k, ath10k and b43
with multiple stations and ieee80211w and in different scenarios by many
other people.

To create the backports-4.14-rc2-1.tar.xz use this repository:
https://git.kernel.org/pub/scm/linux/kernel/git/backports/backports.git
from tag v4.14-rc2-1

Then run this:
./gentree.py --git-revision v4.14-rc2 --clean  <path to linux repo> ../backports-4.14-rc2-1

This also adapts the ath10k-ct and mt76 driver to the changed cfg80211
APIs and syncs the nl80211.h file in iw with the new version from
backports-4.14-rc2.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2017-10-01 12:49:11 +02:00

50 lines
1.4 KiB
Diff

From: Felix Fietkau <nbd@nbd.name>
Date: Sun, 28 Aug 2016 13:13:01 +0200
Subject: [PATCH] ath9k: fix moredata bit in PS buffered frame release
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -1674,6 +1674,22 @@ void ath_tx_aggr_wakeup(struct ath_softc
}
}
+
+static void
+ath9k_set_moredata(struct ath_softc *sc, struct ath_buf *bf, bool val)
+{
+ struct ieee80211_hdr *hdr;
+ u16 mask = cpu_to_le16(IEEE80211_FCTL_MOREDATA);
+ u16 mask_val = mask * val;
+
+ hdr = (struct ieee80211_hdr *) bf->bf_mpdu->data;
+ if ((hdr->frame_control & mask) != mask_val) {
+ hdr->frame_control = (hdr->frame_control & ~mask) | mask_val;
+ dma_sync_single_for_device(sc->dev, bf->bf_buf_addr,
+ sizeof(*hdr), DMA_TO_DEVICE);
+ }
+}
+
void ath9k_release_buffered_frames(struct ieee80211_hw *hw,
struct ieee80211_sta *sta,
u16 tids, int nframes,
@@ -1704,6 +1720,7 @@ void ath9k_release_buffered_frames(struc
if (!bf)
break;
+ ath9k_set_moredata(sc, bf, true);
list_add_tail(&bf->list, &bf_q);
ath_set_rates(tid->an->vif, tid->an->sta, bf, true);
if (bf_isampdu(bf)) {
@@ -1727,6 +1744,9 @@ void ath9k_release_buffered_frames(struc
if (list_empty(&bf_q))
return;
+ if (!more_data)
+ ath9k_set_moredata(sc, bf_tail, false);
+
info = IEEE80211_SKB_CB(bf_tail->bf_mpdu);
info->flags |= IEEE80211_TX_STATUS_EOSP;