Hi,
Will send you updated patch which uses __cpu_to_be64().
Here is quick test I did with 60k packet buffer. With UFO we reach upto 5.87
Gbits/sec compared to 3.55Gbits/sec non UFO case
With two threads we can reach upto 7.25 Gbits/sec where as non UFO still
remains at 3.5 Gbits/sec
linux:/home/araju/patch_sub/ufo # /home/tools/iperf-2.0.1/src/iperf -c
17.1.1.220 -u -l60k -w256m -b10g
------------------------------------------------------------
Client connecting to 17.1.1.220, UDP port 5001
Sending 61440 byte datagrams
UDP buffer size: 228 KByte (WARNING: requested 256 MByte)
------------------------------------------------------------
[ 3] local 17.1.1.221 port 32775 connected with 17.1.1.220 port 5001
[ 3] 0.0-10.0 sec 6.83 GBytes 5.87 Gbits/sec
[ 3] Sent 119356 datagrams
[ 3] WARNING: did not receive ack of last datagram after 10 tries.
linux:/home/araju/patch_sub/ufo # /tmp/ethtool-3/ethtool -K eth3 ufo off
linux:/home/araju/patch_sub/ufo # /home/tools/iperf-2.0.1/src/iperf -c
17.1.1.220 -u -l60k -w256m -b10g
------------------------------------------------------------
Client connecting to 17.1.1.220, UDP port 5001
Sending 61440 byte datagrams
UDP buffer size: 228 KByte (WARNING: requested 256 MByte)
------------------------------------------------------------
[ 3] local 17.1.1.221 port 32775 connected with 17.1.1.220 port 5001
[ 3] 0.0-10.0 sec 4.13 GBytes 3.55 Gbits/sec
[ 3] Sent 72181 datagrams
[ 3] WARNING: did not receive ack of last datagram after 10 tries.
linux:/home/araju/patch_sub/ufo # ifconfig eth3
eth3 Link encap:Ethernet HWaddr 00:11:25:7B:00:E2
inet addr:17.1.1.221 Bcast:17.255.255.255 Mask:255.0.0.0
inet6 addr: fe80::211:25ff:fe7b:e2/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:17 errors:0 dropped:0 overruns:0 frame:0
TX packets:34713919 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:3246 (3.1 Kb) TX bytes:51228028448 (48854.8 Mb)
Interrupt:201
linux:/home/araju/patch_sub/ufo # /home/tools/iperf-2.0.1/src/iperf -c
17.1.1.220 -u -l60k -w256m -b5g -P2
------------------------------------------------------------
Client connecting to 17.1.1.220, UDP port 5001
Sending 61440 byte datagrams
UDP buffer size: 228 KByte (WARNING: requested 256 MByte)
------------------------------------------------------------
[ 3] local 17.1.1.221 port 32775 connected with 17.1.1.220 port 5001
[ 4] local 17.1.1.221 port 32776 connected with 17.1.1.220 port 5001
write2 failed: Connection refused
[ 4] 0.0- 1.0 sec 149 MBytes 1.23 Gbits/sec
[ 4] Sent 2550 datagrams
[ 4] WARNING: did not receive ack of last datagram after 10 tries.
[ 3] 0.0-10.0 sec 3.82 GBytes 3.29 Gbits/sec
[ 3] Sent 66840 datagrams
[SUM] 0.0-10.0 sec 3.97 GBytes 3.41 Gbits/sec
[ 3] WARNING: did not receive ack of last datagram after 10 tries.
linux:/home/araju/patch_sub/ufo # /tmp/ethtool-3/ethtool -K eth3 ufo on
linux:/home/araju/patch_sub/ufo # /home/tools/iperf-2.0.1/src/iperf -c
17.1.1.220 -u -l60k -w256m -b5g -P2
------------------------------------------------------------
Client connecting to 17.1.1.220, UDP port 5001
Sending 61440 byte datagrams
UDP buffer size: 228 KByte (WARNING: requested 256 MByte)
------------------------------------------------------------
[ 4] local 17.1.1.221 port 32777 connected with 17.1.1.220 port 5001
[ 3] local 17.1.1.221 port 32776 connected with 17.1.1.220 port 5001
[ 4] 0.0-10.0 sec 4.91 GBytes 4.22 Gbits/sec
[ 4] Sent 61308 datagrams
[ 3] 0.0-10.0 sec 3.53 GBytes 3.03 Gbits/sec
[ 3] Sent 61641 datagrams
[SUM] 0.0-10.0 sec 8.44 GBytes 7.25 Gbits/sec
[ 4] WARNING: did not receive ack of last datagram after 10 tries.
[ 3] WARNING: did not receive ack of last datagram after 10 tries.
linux:/home/araju/patch_sub/ufo #
-----Original Message-----
From: Andi Kleen [mailto:[EMAIL PROTECTED]
Sent: Monday, November 14, 2005 1:57 PM
To: Ananda Raju
Cc: [EMAIL PROTECTED]; netdev@vger.kernel.org; [EMAIL PROTECTED];
[EMAIL PROTECTED]; [EMAIL PROTECTED];
[EMAIL PROTECTED]
Subject: Re: [PATCH 2.6.15] s2io: UFO support
On Monday 14 November 2005 21:25, Ananda Raju wrote:
> Hi,
> This patch implements the UFO support in S2io driver. This patch uses the
UFO
> interface available in linux-2.6.15 kernel.
Can you share some numbers on how much difference it makes vs non UFO?
> +#ifdef __BIG_ENDIAN
> + sp->ufo_in_band_v[put_off] =
> + (u64)skb_shinfo(skb)->ip6_frag_id;
> +#else
> + sp->ufo_in_band_v[put_off] =
> + (u64)skb_shinfo(skb)->ip6_frag_id << 32;
> +#endif
With __cpu_to_be64 you could avoid the ifdef.
-Andi
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