Re: [parisc-linux] C110 builtin nic slow?

[Joel Soete <soete.joel@tiscali.be>]

Grant Grundler wrote:
> On Mon, Nov 10, 2003 at 03:00:37PM +0100, Joel Soete wrote:
> 
>>                        if (pkt_len > rx_copybreak) {
>>                                struct sk_buff *newskb;
> 
> 
> yup - the rx_copybreak support is exactly what I'm talking about.
> tulip driver has similar support.
> 
> 
>>/* Copy frames shorter than rx_copybreak, otherwise pass on up in
>> * a full sized sk_buff.  Value of 100 stolen from tulip.c (!alpha).
>> */
>>static int rx_copybreak = 100;
> 
> 
> The comment is wrong. Tulip uses 1518 for nearly everything but x86.
> ie it copies all packets since the MTU is <= 1518.
> 
Correct :)

I so try rx_copybreak = 1518

and also run from pc netperf (the script 
/usr/share/doc/netperf/examples/snapshot_script palin)

but on c110 I noticed many (with rx_copybreak = 100 and rx_copybreak = 
1518):
do_page_fault() pid=882 command='netserver' type=15 address=0x0000001c
...
:(

and i never get any miss alignement messages?

I restart this test this morning but in the contrary way ie from c110:
sh /usr/share/doc/netperf/examples/snapshot_script sid.home
then
Netperf snapshot script started at Tue Nov 11 12:52:15 CET 2003
Starting 56x4 TCP_STREAM tests at Tue Nov 11 12:52:52 CET 2003

------------------------------------
Testing with the following command line:
/usr/bin/netperf -t TCP_STREAM -l 60 -H sid.home -i 10,3 -I 99,5 -- -s 
57344 -S 57344 -m 4096


seems to send some pkt and finaly hung?

hmm I will try to run it under gdb and so hope to discover what append.

Cheers,
	Joel