Re: hme(4) hardware RX checksum

[Izumi Tsutsui <tsutsui%ceres.dti.ne.jp@localhost>]

christos%zoulas.com@localhost wrote:

> | BTW, does hardware checksum work even for VLAN packets?
> 
> It must, because there is vlan stuff inside a hw capabilities if statement
> (I am just guessing).

With some quick tests, m_pkthdr.csum_data and m_pkthdr.csum_flags
in RX vlan packet mbufs seem ignored and swcsum is always used for them.

Are these csum values in mbufs preserved in vlan_input() etc?
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Izumi Tsutsui