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Date: Tue, 13 Feb 2007 17:32:44 -0600 (CST) From: Mike Isely <isely@...ly.net> To: Francois Romieu <romieu@...zoreil.com> cc: Philip Craig <philipc@...pgear.com>, Jeff Garzik <jeff@...zik.org>, netdev@...r.kernel.org, Mike Isely at pobox <isely@...ox.com> Subject: Re: [PATCH 4/5] r8169: more alignment for the 0x8168 On Tue, 13 Feb 2007, Francois Romieu wrote: > Philip Craig <philipc@...pgear.com> : > [...] > > This patch caused a drop in throughput from 178 Mbits/sec to 135 Mbits/sec > > on an Intel XScale IXP465. > > Which distribution of packet sizes ? > > > It seems like there is some confusion about what the align parameter > > here means. It was originally an offset from an aligned address so that > > the IP header aligned, and this patch changes it to the alignment of the > > ethernet header. But align is still set to NET_IP_ALIGN for some chips. > > Yes, I should have distinguished both in the first place. > > Can you describe which chipset from realtek the board is using (lspci -vxx) ? > Francois: Obviously I have an interest in any change here not breaking the NIC on my system. So please let me know if/when you'd like me to test drive a candidate fix that keeps everyone happy... -Mike -- | Mike Isely | PGP fingerprint Spammers Die!! | | 03 54 43 4D 75 E5 CC 92 | isely @ pobox (dot) com | 71 16 01 E2 B5 F5 C1 E8 | | - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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