Messages in this thread | | | Subject | Re: [PATCH v2 2/2] net: dsa: tag_ksz: dont let the hardware process the layer 4 checksum | From | Florian Fainelli <> | Date | Wed, 21 Jul 2021 20:55:57 -0700 |
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On 7/21/2021 2:56 PM, Lino Sanfilippo wrote: > If the checksum calculation is offloaded to the network device (e.g due to > NETIF_F_HW_CSUM inherited from the DSA master device), the calculated > layer 4 checksum is incorrect. This is since the DSA tag which is placed > after the layer 4 data is considered as being part of the daa and thus > errorneously included into the checksum calculation. > To avoid this, always calculate the layer 4 checksum in software. > > Signed-off-by: Lino Sanfilippo <LinoSanfilippo@gmx.de>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> -- Florian
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