Rx/tx hardware checksumming statistics?

Christian Weisgerber naddy at mips.inka.de
Tue Aug 12 22:18:40 UTC 2008


Christian Weisgerber <naddy at mips.inka.de> wrote:

> OpenBSD's re(4) driver is ported from FreeBSD. [...]
> * If VLAN tagging is enabled, no rx checksumming is registered at
>   all.

For the record, this is in fact due to a difference in the OpenBSD
driver, i.e., it does not apply to FreeBSD.  OpenBSD does not enable
VLAN tag stripping in hardware.  Without this, the chip apparently
does not perform any rx checksumming on tagged frames.

-- 
Christian "naddy" Weisgerber                          naddy at mips.inka.de



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