On Sunday, February 23, 2003, at 06:32 AM, Rask Ingemann Lambertsen wrote:
What would be examples of this? TCP/UDP inside of IPV6? Are there other examples? And is the expectation that the controller automatically figures out where the TCP/UDP headers are or they are told to the controller as some offset from a known location?I'm trying to understand what is actually meant by the comments in <skbuff.h> regarding checksuming on receive and output.Me too. I find the comments to be vague and ambiguous.NETIF_F_HW_CSUM means that the device can checksum any packet that uses a checksumming algorithm like the one used for TCP/IP and UDP/IP, while a NETIF_F_IP_CSUM device can only do so for TCP and UDP on top of IPv4.OUTPUT: What is not clear to me is what the difference on output is between NETIF_F_HW_CSUM and NETIF_F_IP_CSUM.
The comments in skbuff.h tell you to record the checksum at a specific place. Does this mean that you should modify the skb given to dev->hard_start_xmit()?
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