openwrt/target/linux/kirkwood/patches-4.14/200-disable-tso.patch
Koen Vandeputte 22a3e65662 kernel: bump 4.14 to 4.14.108
Refreshed all patches.

Compile-tested on: cns3xxx, imx6
Runtime-tested on: cns3xxx, imx6

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2019-03-29 18:04:39 +01:00

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1.4 KiB
Diff

From: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Subject: [PATCH] net: mv643xx_eth: Make TSO disabled by default
Data corruption has been observed to be produced by TSO. For instance,
accessing files on a NFS-server with TSO enabled results in different data
transferred each time.
This has been observed only on Kirkwood platforms, i.e. with the mv643xx_eth
driver. Same tests on platforms using the mvneta ethernet driver have
passed without errors.
Make TSO disabled by default for now, until we can found a proper fix
for the regression.
Fixes: 3ae8f4e0b98 ('net: mv643xx_eth: Implement software TSO')
Reported-by: Slawomir Gajzner <slawomir.gajzner <at> gmail.com>
Reported-by: Julien D'Ascenzio <jdascenzio <at> yahoo.fr>
Signed-off-by: Ezequiel Garcia <ezequiel.garcia <at> free-electrons.com>
---
--- a/drivers/net/ethernet/marvell/mv643xx_eth.c
+++ b/drivers/net/ethernet/marvell/mv643xx_eth.c
@@ -3205,11 +3205,11 @@ static int mv643xx_eth_probe(struct plat
dev->watchdog_timeo = 2 * HZ;
dev->base_addr = 0;
- dev->features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO;
+ dev->features = NETIF_F_SG | NETIF_F_IP_CSUM;
dev->vlan_features = dev->features;
dev->features |= NETIF_F_RXCSUM;
- dev->hw_features = dev->features;
+ dev->hw_features = dev->features | NETIF_F_TSO;
dev->priv_flags |= IFF_UNICAST_FLT;
dev->gso_max_segs = MV643XX_MAX_TSO_SEGS;