[ofa-general] IO Size more than 48K

[Batwara, Ashish]

echo
id_ext=200600A0B81138C9,max_sect=2048,ioc_guid=00a0b81112da0003,dgid=fe8
000000000000000a0b81112da0001,pkey=ffff,service_id=200600a0b81138c9>
/sys/class/infiniband_srp/srp-mthca0-1/add_target

We have used above, but still no luck.

Thanks
Ashish

-----Original Message-----
From: Vu Pham [mailto:vuhuong at mellanox.com] 
Sent: Thursday, November 29, 2007 11:08 AM
To: Batwara, Ashish
Cc: openib-general at openib.org
Subject: Re: [ofa-general] IO Size more than 48K


> 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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