[Bug 231474] "ifconfig igbX txcsum" doesn't include "txcsum6".

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=231474

--- Comment #1 from Stephen Hurd <shurd at FreeBSD.org> ---
Can you post the output of:

ifconfig -m igb0 | grep capabilities

> man ifconfig says that "rxcsum" and "txcsum" includes both IPv4 and IPv6 options.

I don't see that in the man page...

>      rxcsum, txcsum, rxcsum6, txcsum6
>              If the driver supports user-configurable checksum offloading,
>              enable receive (or transmit) checksum offloading on the inter-
>              face.  The feature can be turned on selectively per protocol fam-
>              ily.  Use rxcsum6, txcsum6 for ip6(4) or rxcsum, txcsum other-
>              wise.  Some drivers may not be able to enable these flags inde-
>              pendently of each other, so setting one may also set the other.
>              The driver will offload as much checksum work as it can reliably
>              support, the exact level of offloading varies between drivers.

There's a patch in PR 231151 which fixes the rxcsum behaviour (though for some
reason, you're not seeing the issue)
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=231151

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