OpenWrt – Blame information for rev 4

Subversion Repositories:
Rev:
Rev Author Line No. Line
4 office 1 From 52a192362932f333a7ebafd581c4d9b81da2fec8 Mon Sep 17 00:00:00 2001
2 From: Stanislaw Gruszka <sgruszka@redhat.com>
3 Date: Mon, 28 May 2018 13:25:06 +0200
4 Subject: [PATCH] Revert "rt2800: use TXOP_BACKOFF for probe frames"
5  
6 This reverts commit fb47ada8dc3c30c8e7b415da155742b49536c61e.
7  
8 In some situations when we set TXOP_BACKOFF, the probe frame is
9 not sent at all. What it worse then sending probe frame as part
10 of AMPDU and can degrade 11n performance to 11g rates.
11  
12 Cc: stable@vger.kernel.org
13 Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
14 Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
15 ---
16 drivers/net/wireless/ralink/rt2x00/rt2x00queue.c | 7 +++----
17 1 file changed, 3 insertions(+), 4 deletions(-)
18  
19 --- a/drivers/net/wireless/ralink/rt2x00/rt2x00queue.c
20 +++ b/drivers/net/wireless/ralink/rt2x00/rt2x00queue.c
21 @@ -372,16 +372,15 @@ static void rt2x00queue_create_tx_descri
22  
23 /*
24 * Determine IFS values
25 - * - Use TXOP_BACKOFF for probe and management frames except beacons
26 + * - Use TXOP_BACKOFF for management frames except beacons
27 * - Use TXOP_SIFS for fragment bursts
28 * - Use TXOP_HTTXOP for everything else
29 *
30 * Note: rt2800 devices won't use CTS protection (if used)
31 * for frames not transmitted with TXOP_HTTXOP
32 */
33 - if ((ieee80211_is_mgmt(hdr->frame_control) &&
34 - !ieee80211_is_beacon(hdr->frame_control)) ||
35 - (tx_info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE))
36 + if (ieee80211_is_mgmt(hdr->frame_control) &&
37 + !ieee80211_is_beacon(hdr->frame_control))
38 txdesc->u.ht.txop = TXOP_BACKOFF;
39 else if (!(tx_info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT))
40 txdesc->u.ht.txop = TXOP_SIFS;
41 --
42 2.17.1
43