Francois Romieu wrote:
> Philip Craig <[EMAIL PROTECTED]> :
> [...]
>> 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 ?
Just using iperf with the default options, MTU 1500,
forwarding between 2 PCs with the board in the middle.
>> 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) ?
# lspci -vxx
00:0c.0 Ethernet controller: Realtek Semiconductor Co., Ltd.: Unknown device
8169 (rev 10)
Subsystem: Realtek Semiconductor Co., Ltd.: Unknown device 8169
Flags: bus master, 66Mhz, medium devsel, latency 0, IRQ 26
I/O ports at 1000 [size=256]
Memory at 48061000 (32-bit, non-prefetchable) [size=256]
Expansion ROM at 48000000 [disabled] [size=128K]
Capabilities: [dc] Power Management version 2
00: ec 10 69 81 57 01 b0 02 10 00 00 02 08 00 00 00
10: 01 10 00 00 00 10 06 48 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 ec 10 69 81
30: 00 00 00 00 dc 00 00 00 00 00 00 00 1a 01 20 40
00:0d.0 Ethernet controller: Realtek Semiconductor Co., Ltd.: Unknown device
8169 (rev 10)
Subsystem: Realtek Semiconductor Co., Ltd.: Unknown device 8169
Flags: bus master, 66Mhz, medium devsel, latency 0, IRQ 26
I/O ports at 1400 [size=256]
Memory at 48061100 (32-bit, non-prefetchable) [size=256]
Expansion ROM at 48020000 [disabled] [size=128K]
Capabilities: [dc] Power Management version 2
00: ec 10 69 81 57 01 b0 02 10 00 00 02 08 00 00 00
10: 01 14 00 00 00 11 06 48 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 ec 10 69 81
30: 00 00 00 00 dc 00 00 00 00 00 00 00 1a 01 20 40
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