[Cake] [PATCH net-next] sched: sch_cake: Align QoS treatment to Windows and Zoom

[Toke Høiland-Jørgensen]

From: Dave Taht <dave.taht at gmail.com>

Cake's diffserv4 mode attempted to follow the IETF webrtc
QoS marking standards, RFC8837.

It turns out Windows QoS can only use CS0, CS1, CS5, and CS7.

Zoom defaults to using CS5 for video and screen sharing traffic.

Bump CS4, CS5, and NQB to the video tin (2) in diffserv4 mode, for
more bandwidth and lower priority.

This also better aligns with how WiFi presently treats CS5 and NQB.

Signed-off-by: Dave Taht <dave.taht at gmail.com>
Signed-off-by: Toke Høiland-Jørgensen <toke at redhat.com>
---
 net/sched/sch_cake.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/sched/sch_cake.c b/net/sched/sch_cake.c
index 48dd8c88903f..2a9288d4b873 100644
--- a/net/sched/sch_cake.c
+++ b/net/sched/sch_cake.c
@@ -328,8 +328,8 @@ static const u8 diffserv4[] = {
 	1, 0, 0, 0, 0, 0, 0, 0,
 	2, 0, 2, 0, 2, 0, 2, 0,
 	2, 0, 2, 0, 2, 0, 2, 0,
-	3, 0, 2, 0, 2, 0, 2, 0,
-	3, 0, 0, 0, 3, 0, 3, 0,
+	2, 0, 2, 0, 2, 0, 2, 0,
+	2, 0, 0, 0, 2, 0, 3, 0,
 	3, 0, 0, 0, 0, 0, 0, 0,
 	3, 0, 0, 0, 0, 0, 0, 0,
 };
-- 
2.47.1