[ofa-general] IO Size more than 48K

[Kevin Harms]

	you may also have to go to /sys/block/sdX/queue and echo 1024 >  
max_sectors_kb
	if you use the srp_daemon you can also add:
	a max_sect=2048 to /etc/srp_daemon.conf

kevin

On Nov 29, 2007, at 11:08 AM, Vu Pham wrote:

>
>> Hi,
>> We are using OFED-1.2, and using xdd and some other tools, and  
>> trying to
>> send 1/2MB IOs, but what we are seeing in analyzer traces, that  
>> memory
>> descriptor in SRP command shows max. 48K which means 1MB I/Os has  
>> broken
>> into smaller SRP request from initiator.
>> How can I have this I/O directly going to target? What parameter I  
>> need
>> to change?
>>
>>
>
> module param srp_sg_tablesize (default is 12 ie. 12 x 4K = 48K)
> and/or
> max_sect=yyy in echo id_ext=xxx,...,max_sect=1024,service_id= > /sys/ 
> class/infiniband_srp/...
>
> -vu
>
>> Thanks
>> Ashish
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