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bcm53xx: enable GRO 

Historically, GRO on bcm53xx target is disabled because it increases
forwarding overhead. As fraglist GRO is now used by default, this
overhead is minimized.

Signed-off-by: Qingfang Deng <dqfext@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/23463
Signed-off-by: Jonas Jelonek <jonas@jonasjelonek.de>
pull/23463/head
Qingfang Deng 2026-05-25 09:33:20 +08:00 committed by Jonas Jelonek
parent 50af656cc3
commit dec71db4a5
No known key found for this signature in database
2 changed files with 0 additions and 72 deletions
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36
target/linux/bcm53xx/patches-6.12/600-net-disable-GRO-by-default.patch
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@ -1,36 +0,0 @@
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
Date: Mon, 20 Jun 2022 10:01:18 +0200
Subject: [PATCH] net: disable GRO by default
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
In many cases GRO improves network performance however it comes at a
cost of chacksums calculations. In case of slow CPU and missing hardware
csum calculation support GRO can actually decrease network speed.
On BCM4708 *disabling* GRO results in following NAT masquarade speed
changes:
1. 364 Mb/s → 396 Mb/s (packet steering disabled)
2. 341 Mb/s → 566 Mb/s (packet steering enabled)
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
---
include/linux/netdev_features.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/include/linux/netdev_features.h
+++ b/include/linux/netdev_features.h
@@ -235,10 +235,10 @@ static inline int find_next_netdev_featu
#define NETIF_F_UPPER_DISABLES NETIF_F_LRO
/* changeable features with no special hardware requirements */
-#define NETIF_F_SOFT_FEATURES (NETIF_F_GSO | NETIF_F_GRO | NETIF_F_GRO_FRAGLIST)
+#define NETIF_F_SOFT_FEATURES (NETIF_F_GSO)
/* Changeable features with no special hardware requirements that defaults to off. */
-#define NETIF_F_SOFT_FEATURES_OFF (NETIF_F_GRO_UDP_FWD)
+#define NETIF_F_SOFT_FEATURES_OFF (NETIF_F_GRO_UDP_FWD | NETIF_F_GRO | NETIF_F_GRO_FRAGLIST)
#define NETIF_F_VLAN_FEATURES (NETIF_F_HW_VLAN_CTAG_FILTER | \
NETIF_F_HW_VLAN_CTAG_RX | \

36
target/linux/bcm53xx/patches-6.18/600-net-disable-GRO-by-default.patch
View File

@ -1,36 +0,0 @@
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
Date: Mon, 20 Jun 2022 10:01:18 +0200
Subject: [PATCH] net: disable GRO by default
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
In many cases GRO improves network performance however it comes at a
cost of chacksums calculations. In case of slow CPU and missing hardware
csum calculation support GRO can actually decrease network speed.
On BCM4708 *disabling* GRO results in following NAT masquarade speed
changes:
1. 364 Mb/s → 396 Mb/s (packet steering disabled)
2. 341 Mb/s → 566 Mb/s (packet steering enabled)
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
---
include/linux/netdev_features.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/include/linux/netdev_features.h
+++ b/include/linux/netdev_features.h
@@ -237,10 +237,10 @@ static inline int find_next_netdev_featu
#define NETIF_F_UPPER_DISABLES NETIF_F_LRO
/* changeable features with no special hardware requirements */
-#define NETIF_F_SOFT_FEATURES (NETIF_F_GSO | NETIF_F_GRO | NETIF_F_GRO_FRAGLIST)
+#define NETIF_F_SOFT_FEATURES (NETIF_F_GSO)
/* Changeable features with no special hardware requirements that defaults to off. */
-#define NETIF_F_SOFT_FEATURES_OFF (NETIF_F_GRO_UDP_FWD)
+#define NETIF_F_SOFT_FEATURES_OFF (NETIF_F_GRO_UDP_FWD | NETIF_F_GRO | NETIF_F_GRO_FRAGLIST)
#define NETIF_F_VLAN_FEATURES (NETIF_F_HW_VLAN_CTAG_FILTER | \
NETIF_F_HW_VLAN_CTAG_RX | \