Mr Y wrote:
Hi all,
I'm trying to implement Large Recieve Offload for an Ethernet driver on
FreeBSD 6.3, but all my >MTU packets are being thrown by the OS.
I'm using mbuf chains in this imlpementation, each mbuf is a cluster of
MCLBYTES bytes. They are linked by the m_next pointer.
The first packet being thrown away is 2945 bytes long. Wireshark shows the
packet that is being passed to the OS is correct.
Do I need to set some OS parameter to make it recieve mbuf chains?
Please help.
Hi Yony,
I seem to remember some discussion about this list last year see the
following threads:
http://lists.freebsd.org/pipermail/freebsd-net/2007-September/015250.html
http://lists.freebsd.org/pipermail/freebsd-net/2007-September/015350.html
From my limited reading of these threads just now and possibly bad
memory. It would seem that the MRU to MTU relationship is defined in
the nic driver rather than enforced further up the stack or at least
that seamed to be the case with the bce driver.
Hope this is helpful,
Tom
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