Re: Call for testers: Atheros AR8121(L1E)/AR8113/AR8114(L2E)ethernet

On Thu, Oct 30, 2008 at 01:06:37PM +0900, Pyun YongHyeon wrote:[color=blue]
>
> Hi,
>
> I had been working on writing a driver for Atheros AR8121(L1E),
> AR8113/AR8114(L2E) ethernet controllers since Jeremy Chadwick sent
> the hardware to me. I think it's feature complete state and time
> for more testing for stability or some edge cases. I guess AR81xx
> is commonly found on newer Asus EeePC or P5Q series of Asus
> motherboard. If you have AR81xx controller would you give it spin
> and let me know how it goes? You can get the latest driver at the
> following URL.
> [url]http://people.freebsd.org/~yongari/ate/if_ate.c[/url]
> [url]http://people.freebsd.org/~yongari/ate/if_atereg.h[/url]
> [url]http://people.freebsd.org/~yongari/ate/if_atevar.h[/url]
> [url]http://people.freebsd.org/~yongari/ate/Makefile[/url]
> or
> [url]http://people.freebsd.org/~yongari/ate/ate.20081030.tar.gz[/url]
> The driver should build without problems on CURRENT, stable/7.
>
> ATM the driver supports the following hardware features.
> - TSO
> - Rx TCP/UDP/IP checksum offload
> - VLAN tag insertion/stripping
> - Jumbo frame
> - WOL
> It seems that hardware supports Tx checksum offload but I couldn't
> make it work for TCP segments. Only short TCP segments seem to work
> so I disabled Tx checksum offload.
> Note, the hardware does not support descriptor based DMA on Rx side
> so driver have to copy recevied frames to pass them to upper stack
> so it will consume a lot of CPU cycles if you push the hardware to
> the limit.
> [/color]

Great work! The driver could use a different name though, there's
already an ate(4) for arm, see src/sys/arm/at91/if_ate.c.

- Christian

--
Christian Brueffer [email]chris@unixpages.org[/email] [email]brueffer@FreeBSD.org[/email]
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