On Sun, Jun 14, 2015 at 01:13:04PM +0300, Or Gerlitz wrote: > From: Moshe Lazer <[email protected]> > > Add a device capability flag IB_DEVICE_IP_SUM to denote checksum offload > support. Devices should set this flag if they support insertion of IP, TCP > and UDP checksums on outgoing IP packets sent over IB UD or ETH RAW_PACKET > QPs.
It would be really nice to see the man page discuss exactly what is done here, there are quite a few different options for checksum. IPoIB maps this to 'NETIF_F_IP_CSUM', so only UDP/TCP checksum in IPv4. What value should be placed in the checksum header(s) prior to issuing the send? It looks like IPoIB uses the CHECKSUM_PARTIAL protocol ? This should all be made clear in the man page, IMHO. Jason -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
