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iproute2: cake: make gso/gro splitting configurable

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This patch makes sch_cake's gso/gro splitting configurable
from userspace.

To disable breaking apart superpackets in sch_cake:

tc qdisc replace dev whatever root cake no-split-gso

to enable:

tc qdisc replace dev whatever root cake split-gso

Signed-off-by: Toke Høiland-Jørgensen <toke@toke.dk>
Signed-off-by: Dave Taht <dave.taht@gmail.com>
[pulled from netdev list - no API/ABI change]
Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
This commit is contained in:
Kevin Darbyshire-Bryant 2018-07-29 14:56:03 +01:00
parent 4f3c9a63b2
commit 13c66f8820
2 changed files with 11 additions and 2 deletions
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2
package/network/utils/iproute2/Makefile
View file

@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
PKG_NAME:=iproute2
PKG_VERSION:=4.17.0
PKG_RELEASE:=2
PKG_RELEASE:=3
PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
PKG_SOURCE_URL:=@KERNEL/linux/utils/net/iproute2

11
package/network/utils/iproute2/patches/190-add-cake-to-tc.patch
View file

@ -776,7 +776,7 @@
TCMODULES += e_bpf.o
--- /dev/null
+++ b/tc/q_cake.c
@@ -0,0 +1,790 @@
@@ -0,0 +1,799 @@
+// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
+
+/*
@ -858,6 +858,7 @@
+" dual-srchost | dual-dsthost | triple-isolate* ]\n"
+" [ nat | nonat* ]\n"
+" [ wash | nowash* ]\n"
+" [ split-gso* | no-split-gso ]\n"
+" [ ack-filter | ack-filter-aggressive | no-ack-filter* ]\n"
+" [ memlimit LIMIT ]\n"
+" [ ptm | atm | noatm* ] [ overhead N | conservative | raw* ]\n"
@ -887,6 +888,7 @@
+ int nat = -1;
+ int atm = -1;
+ int mpu = 0;
+ int split_gso = -1;
+
+ while (argc > 0) {
+ if (strcmp(*argv, "bandwidth") == 0) {
@ -934,6 +936,10 @@
+ wash = 0;
+ } else if (strcmp(*argv, "wash") == 0) {
+ wash = 1;
+ } else if (strcmp(*argv, "split-gso") == 0) {
+ split_gso = 1;
+ } else if (strcmp(*argv, "no-split-gso") == 0) {
+ split_gso = 0;
+ } else if (strcmp(*argv, "flowblind") == 0) {
+ flowmode = CAKE_FLOW_NONE;
+ } else if (strcmp(*argv, "srchost") == 0) {
@ -1153,6 +1159,9 @@
+ addattr_l(n, 1024, TCA_CAKE_NAT, &nat, sizeof(nat));
+ if (wash != -1)
+ addattr_l(n, 1024, TCA_CAKE_WASH, &wash, sizeof(wash));
+ if (split_gso != -1)
+ addattr_l(n, 1024, TCA_CAKE_SPLIT_GSO, &split_gso,
+ sizeof(split_gso));
+ if (ingress != -1)
+ addattr_l(n, 1024, TCA_CAKE_INGRESS, &ingress, sizeof(ingress));
+ if (ack_filter != -1)