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

Pyun YongHyeon <pyunyh_at_gmail.com> writes:
> On Sat, Nov 08, 2008 at 12:27:12PM +0300, Boris Samorodov wrote:
>  > Pyun YongHyeon <pyunyh_at_gmail.com> writes:
>
> [...]
>  > > One user reported non-working NFS over UDP and I disabled Rx
>  > > checksum offload as AR81xx hardware is not able to handle
>  > > fragmented IP datagrams correctly. So it's highly recommended to
>  > > disable Rx checksum offload or use the following updated files.
>  > >
>  > > http://people.freebsd.org/~yongari/ale/ale.20081108.tar.gz
>  > 
>  > Tested at EeePC-1000. The perfomance dropped (seems to be expected)
>  > twice -- to 5.5 MB/s (fetching a big file to tmpfs). Other than that
>  > works fine. This is for:
>  > -----
>  > ale0_at_pci0:4:0:0:        class=0x020000 card=0x83241043 chip=0x10261969 rev=0xb0 hdr=0x00
>  >     vendor     = 'Attansic (Now owned by Atheros)'
>  >     class      = network
>  >     subclass   = ethernet
>  > -----
>
> Fortunately, I've managed to add work-around for Rx checksum
> offload issue. Would you try latest ale(4) at the fowllowing URL?
> http://people.freebsd.org/~yongari/ale/ale.20081110.tar.gz

Great, thanks! The perfomance is returning back. ;-) It shows
approx. 10.5 MB/s while ftp'ing a big file to tmpfs. I'd like to show
you some additional info:
-----
uname -a ftp://ftp.bsam.ru/pub/tmp/EeePC/uname.2
netstat -w 1 ftp://ftp.bsam.ru/pub/tmp/EeePC/netstat.ale.2
sysctl dev.ale.0.stats ftp://ftp.bsam.ru/pub/tmp/EeePC/sysctl.ale.stats.2
iostat -w 1 ftp://ftp.bsam.ru/pub/tmp/EeePC/iostat.ale.2
-----

The interesting one is a netstat one. I'm not sure what zeroes for
packets mean while trafic exists.

BTW, a flood ping created a 233 packets per second trafic.


WBR
-- 
Boris Samorodov (bsam)
Research Engineer, http://www.ipt.ru Telephone & Internet SP
FreeBSD committer, http://www.FreeBSD.org The Power To Serve