cvs commit: src/sys/dev/msk if_msk.c
rpaulo at fnop.net
Wed Apr 11 11:40:29 UTC 2007
Pyun YongHyeon wrote:
> yongari 2007-04-11 00:47:29 UTC
> FreeBSD src repository
> Modified files:
> sys/dev/msk if_msk.c
> Add work around for hardware Tx checksum offload bug in Yukon II.
> Yukon II generated corrupted TCP checksum for short TCP packets
> that's less than 60 bytes in size(e.g. window probe packet, pure ACK
> packet etc). Padding the frame with zeros to make the frame minimum
> ethernet frame size didn't work at all. Instead of dropping Tx
> checksum offload support we calculate TCP checksum with S/W method
> when we encounter short TCP frames.
> Fortunately it seems that short UDP datagrams appear to be handled
> correctly by Yukon II.
> While I'm here simplify ethernet/VLAN header size calculation logic.
Rui Paulo | PGP: F0E4 C7C7 1653 79B7 78DC DD73 64FA B2C6 CF45 1F84
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