iproute/backport-q_cake-allow-changing-to-diffserv3.patch
wu-changsheng b0c3f2d56e backport bugfix patch
(cherry picked from commit 77f9f3c363c2959ae5792ef8c3615e779f88ecc8)
2022-01-25 16:36:14 +08:00

50 lines
1.7 KiB
Diff

From eb4206ecd0342ff92b1a85b7dae3d4fd1b5be1c6 Mon Sep 17 00:00:00 2001
From: Kevin Bracey <kevin@bracey.fi>
Date: Thu, 6 Jan 2022 13:16:04 +0200
Subject: [PATCH] q_cake: allow changing to diffserv3
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
A diffserv3 option (enum value 0) was never sent to the kernel, so it
was not possible to use "tc qdisc change" to select it.
This also meant that were also relying on the kernel's default being
diffserv3 when adding. If the default were to change, we wouldn't have
been able to request diffserv3 explicitly.
Signed-off-by: Kevin Bracey <kevin@bracey.fi>
Acked-by: Toke Høiland-Jørgensen <toke@toke.dk>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Conflict: remove fwmark variable declaration
Reference: https://git.kernel.org/pub/scm/network/iproute2/iproute2.git/commit?id=eb4206ecd0342ff92b1a85b7dae3d4fd1b5be1c6
---
tc/q_cake.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/tc/q_cake.c b/tc/q_cake.c
index 4cfc1c0..c438b76 100644
--- a/tc/q_cake.c
+++ b/tc/q_cake.c
@@ -95,7 +95,7 @@ static int cake_parse_opt(struct qdisc_util *qu, int argc, char **argv,
bool overhead_override = false;
bool overhead_set = false;
unsigned int interval = 0;
- unsigned int diffserv = 0;
+ int diffserv = -1;
unsigned int memlimit = 0;
unsigned int target = 0;
__u64 bandwidth = 0;
@@ -360,7 +360,7 @@ static int cake_parse_opt(struct qdisc_util *qu, int argc, char **argv,
if (bandwidth || unlimited)
addattr_l(n, 1024, TCA_CAKE_BASE_RATE64, &bandwidth,
sizeof(bandwidth));
- if (diffserv)
+ if (diffserv != -1)
addattr_l(n, 1024, TCA_CAKE_DIFFSERV_MODE, &diffserv,
sizeof(diffserv));
if (atm != -1)
--
1.8.3.1