diff options
| author | Daniel Golle <daniel@makrotopia.org> | 2018-05-28 15:45:43 +0200 |
|---|---|---|
| committer | Daniel Golle <daniel@makrotopia.org> | 2018-06-15 20:37:17 +0200 |
| commit | 7fc94b2a25bb92c886b5de0433284b28c6a1df9a (patch) | |
| tree | 1fc79554a8d2a72cc333f02cbf77170b7c7c3a2e | |
| parent | b03826d8aaa659e2581dcff3f96280a8b4683422 (diff) | |
| download | mtk-20170518-7fc94b2a25bb92c886b5de0433284b28c6a1df9a.zip mtk-20170518-7fc94b2a25bb92c886b5de0433284b28c6a1df9a.tar.gz mtk-20170518-7fc94b2a25bb92c886b5de0433284b28c6a1df9a.tar.bz2 | |
mac80211: rt2x00: no longer use TXOP_BACKOFF for probe frames
Import a revert-commit from Stanislaw Gruszka which significantly
improves WiFi performance on rt2x00 based hardware.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
(cherry-picked from commit f4a639a3d7d40b4f63c431c2d554c479fbcc6b74)
| -rw-r--r-- | package/kernel/mac80211/Makefile | 2 | ||||
| -rw-r--r-- | package/kernel/mac80211/patches/090-Revert-rt2800-use-TXOP_BACKOFF-for-probe-frames.patch | 45 |
2 files changed, 46 insertions, 1 deletions
diff --git a/package/kernel/mac80211/Makefile b/package/kernel/mac80211/Makefile index 0cdce63..0a4cbc8 100644 --- a/package/kernel/mac80211/Makefile +++ b/package/kernel/mac80211/Makefile @@ -11,7 +11,7 @@ include $(INCLUDE_DIR)/kernel.mk PKG_NAME:=mac80211 PKG_VERSION:=2017-01-31 -PKG_RELEASE:=4 +PKG_RELEASE:=5 PKG_SOURCE_URL:=http://mirror2.openwrt.org/sources PKG_BACKPORT_VERSION:= PKG_HASH:=75e6d39e34cf156212a2509172a4a62b673b69eb4a1d9aaa565f7fa719fa2317 diff --git a/package/kernel/mac80211/patches/090-Revert-rt2800-use-TXOP_BACKOFF-for-probe-frames.patch b/package/kernel/mac80211/patches/090-Revert-rt2800-use-TXOP_BACKOFF-for-probe-frames.patch new file mode 100644 index 0000000..3438051 --- /dev/null +++ b/package/kernel/mac80211/patches/090-Revert-rt2800-use-TXOP_BACKOFF-for-probe-frames.patch @@ -0,0 +1,45 @@ +From 52a192362932f333a7ebafd581c4d9b81da2fec8 Mon Sep 17 00:00:00 2001 +From: Stanislaw Gruszka <sgruszka@redhat.com> +Date: Mon, 28 May 2018 13:25:06 +0200 +Subject: [PATCH] Revert "rt2800: use TXOP_BACKOFF for probe frames" + +This reverts commit fb47ada8dc3c30c8e7b415da155742b49536c61e. + +In some situations when we set TXOP_BACKOFF, the probe frame is +not sent at all. What it worse then sending probe frame as part +of AMPDU and can degrade 11n performance to 11g rates. + +Cc: stable@vger.kernel.org +Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> +Signed-off-by: Kalle Valo <kvalo@codeaurora.org> +--- + drivers/net/wireless/ralink/rt2x00/rt2x00queue.c | 7 +++---- + 1 file changed, 3 insertions(+), 4 deletions(-) + +diff --git a/drivers/net/wireless/ralink/rt2x00/rt2x00queue.c b/drivers/net/wireless/ralink/rt2x00/rt2x00queue.c +index a6884e73d2ab..7ddee980048b 100644 +--- a/drivers/net/wireless/ralink/rt2x00/rt2x00queue.c ++++ b/drivers/net/wireless/ralink/rt2x00/rt2x00queue.c +@@ -372,16 +372,15 @@ static void rt2x00queue_create_tx_descriptor_ht(struct rt2x00_dev *rt2x00dev, + + /* + * Determine IFS values +- * - Use TXOP_BACKOFF for probe and management frames except beacons ++ * - Use TXOP_BACKOFF for management frames except beacons + * - Use TXOP_SIFS for fragment bursts + * - Use TXOP_HTTXOP for everything else + * + * Note: rt2800 devices won't use CTS protection (if used) + * for frames not transmitted with TXOP_HTTXOP + */ +- if ((ieee80211_is_mgmt(hdr->frame_control) && +- !ieee80211_is_beacon(hdr->frame_control)) || +- (tx_info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE)) ++ if (ieee80211_is_mgmt(hdr->frame_control) && ++ !ieee80211_is_beacon(hdr->frame_control)) + txdesc->u.ht.txop = TXOP_BACKOFF; + else if (!(tx_info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT)) + txdesc->u.ht.txop = TXOP_SIFS; +-- +2.17.1 + |