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Date:      Wed, 26 Sep 2001 18:40:38 -0700
From:      "Srinivas Dharmasanam" <the_srinivas@hotmail.com>
To:        freebsd-hackers@freebsd.org
Subject:   Re: TCP&IP cksum offload on FreeBSD 4.2
Message-ID:  <F147FRaqbC8wSA1XvpF00008437@hotmail.com>

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Hello,
I'm trying to use the TCP&IP checksum offload capability of the Netgear 
GA620 NIC from a SMP FreeBSD 4.2R system running on a typical PIII SBC.
I did enable TCP&IP cksum offload for receive operations by setting the 
if_hwassist flag in the driver /sys/pci/if_ti.c and verified that it is 
working. However I'm unable to offload TCP&IP checksum for the send 
operations.

For the send operation, I see that the kernel is still doing the TCP and IP 
checksum calculations although the driver has the hw_assist flag set.

Can you please let me know what else needs to be done to offload TCP and IP 
checksum for both rcv/send operations on the Tigon2 NIC?

Thanks,
-Srinivas


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