Date: Thu, 30 Oct 2008 15:07:08 +0900 From: Pyun YongHyeon <pyunyh@gmail.com> To: Christian Brueffer <brueffer@FreeBSD.org> Cc: freebsd-current@FreeBSD.org Subject: Re: Call for testers: Atheros AR8121(L1E)/AR8113/AR8114(L2E) ethernet Message-ID: <20081030060708.GC78796@cdnetworks.co.kr> In-Reply-To: <20081030055821.GA1228@haakonia.hitnet.RWTH-Aachen.DE> References: <20081030040637.GA78796@cdnetworks.co.kr> <20081030055821.GA1228@haakonia.hitnet.RWTH-Aachen.DE>
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On Thu, Oct 30, 2008 at 06:58:21AM +0100, Christian Brueffer wrote: > On Thu, Oct 30, 2008 at 01:06:37PM +0900, Pyun YongHyeon wrote: > > > > 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. > > http://people.freebsd.org/~yongari/ate/if_ate.c > > http://people.freebsd.org/~yongari/ate/if_atereg.h > > http://people.freebsd.org/~yongari/ate/if_atevar.h > > http://people.freebsd.org/~yongari/ate/Makefile > > or > > http://people.freebsd.org/~yongari/ate/ate.20081030.tar.gz > > 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. > > > > 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. > Ah... You're right. It's getting harder to name a driver these days. Thanks for pointing out! -- Regards, Pyun YongHyeon
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