On 2/7/24 12:28 PM, Biju Das wrote: > TOE has hardware support for calculating IP header and TCP/UDP/ICMP > checksum for both IPv4 and IPv6. > > Add Rx checksum offload supported by TOE for IPv4 and TCP/UDP protocols. > > For Rx, the 4-byte result of checksum calculation is attached to the > Ethernet frames.First 2-bytes is result of IPv4 header checksum and next > 2-bytes is TCP/UDP/ICMP checksum. > > If a frame does not have checksum error, 0x0000 is attached as checksum > calculation result. For unsupported frames 0xFFFF is attached as checksum > calculation result. In case of an IPv6 packet, IPv4 checksum is always set > to 0xFFFF. > > We can test this functionality by the below commands > > ethtool -K eth0 rx on --> to turn on Rx checksum offload > ethtool -K eth0 rx off --> to turn off Rx checksum offload > > Signed-off-by: Biju Das <biju.das.jz@xxxxxxxxxxxxxx> Reviewed-by: Sergey Shtylyov <s.shtylyov@xxxxxx> [...] MBR, Sergey
