mac80211: rt2x00: import upstream changes and rebase our patches

[openwrt/staging/lynxis/omap.git] / package / kernel / mac80211 / patches / 020-16-rt2800-use-TXOP_BACKOFF-for-probe-frames.patch

diff --git a/package/kernel/mac80211/patches/020-16-rt2800-use-TXOP_BACKOFF-for-probe-frames.patch b/package/kernel/mac80211/patches/020-16-rt2800-use-TXOP_BACKOFF-for-probe-frames.patch
new file mode 100644 (file)
index 0000000..31d79bb
--- /dev/null
+++ b/package/kernel/mac80211/patches/020-16-rt2800-use-TXOP_BACKOFF-for-probe-frames.patch
@@ -0,0 +1,43 @@
+From fb47ada8dc3c30c8e7b415da155742b49536c61e Mon Sep 17 00:00:00 2001
+From: Stanislaw Gruszka <sgruszka@redhat.com>
+Date: Wed, 15 Feb 2017 10:25:12 +0100
+Subject: [PATCH 16/19] rt2800: use TXOP_BACKOFF for probe frames
+
+Even if we do not set AMPDU bit in TXWI, device still can aggregate
+frame and send it with rate not corresponding to requested. That mean
+we can do not sent probe frames with requested rate. To prevent that
+use TXOP_BACKOFF for probe frames.
+
+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, 4 insertions(+), 3 deletions(-)
+
+diff --git a/drivers/net/wireless/ralink/rt2x00/rt2x00queue.c b/drivers/net/wireless/ralink/rt2x00/rt2x00queue.c
+index e1660b92b20c..a2c1ca5c76d1 100644
+--- a/drivers/net/wireless/ralink/rt2x00/rt2x00queue.c
++++ b/drivers/net/wireless/ralink/rt2x00/rt2x00queue.c
+@@ -372,15 +372,16 @@ static void rt2x00queue_create_tx_descriptor_ht(struct rt2x00_dev *rt2x00dev,
+ 
+       /*
+        * Determine IFS values
+-       * - Use TXOP_BACKOFF for management frames except beacons
++       * - Use TXOP_BACKOFF for probe and 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))
++      if ((ieee80211_is_mgmt(hdr->frame_control) &&
++           !ieee80211_is_beacon(hdr->frame_control)) ||
++          (tx_info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE))
+               txdesc->u.ht.txop = TXOP_BACKOFF;
+       else if (!(tx_info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT))
+               txdesc->u.ht.txop = TXOP_SIFS;
+-- 
+2.12.1
+