openwrt/target/linux/generic/pending-5.15/655-increase_skb_pad.patch
Daniel Golle c93c5365c0
kernel: pick patches for MediaTek Ethernet from linux-next
Pick patches with several fixes and improvements, preparation for
upcoming WED (TX) [1] as well as basic XDP support [2] with MediaTek's
Filogic SoCs to the mtk_eth_soc driver.

Also pick follow-up patch fixing Ethernet on MT7621 [3].

Tested on Bananapi BPi-R3 (MT7986), Bananapi BPi-R64 (MT7622),
Bananapi BPi-R2 (MT7623), MikroTik RouterBoard M11G (MT7621).

[1]: https://patchwork.kernel.org/project/netdevbpf/list/?series=662108&state=*
[2]: https://patchwork.kernel.org/project/netdevbpf/list/?series=675368&state=*
     (the first part of the series adding wed nodes to mt7986a.dtsi was
      applied to the copy of mt7986a.dtsi in our tree)
[3]: https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=5e69163d3b9931098922b3fc2f8e786af8c1f37e

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2022-09-22 23:55:02 +01:00

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Diff

From: Felix Fietkau <nbd@nbd.name>
Subject: kernel: add a few patches for avoiding unnecessary skb reallocations - significantly improves ethernet<->wireless performance
lede-commit: 6f89cffc9add6939d44a6b54cf9a5e77849aa7fd
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
include/linux/skbuff.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -2818,7 +2818,7 @@ static inline int pskb_network_may_pull(
* NET_IP_ALIGN(2) + ethernet_header(14) + IP_header(20/40) + ports(8)
*/
#ifndef NET_SKB_PAD
-#define NET_SKB_PAD max(32, L1_CACHE_BYTES)
+#define NET_SKB_PAD max(64, L1_CACHE_BYTES)
#endif
int ___pskb_trim(struct sk_buff *skb, unsigned int len);