Re: Cant write to max_sectors_kb on 4.5.0 SRP target

2016-04-11 Thread Martin K. Petersen
> "Ewan" == Ewan D Milne writes: Ewan> In the upstream kernel queue_max_sectors_store() does not permit Ewan> you to set a value larger than the device-imposed limit. This Ewan> value, stored in q->limits.max_dev_sectors, is not visible via the Ewan> block queue sysfs

Re: Cant write to max_sectors_kb on 4.5.0 SRP target

2016-04-11 Thread Laurence Oberman
ux-scsi" <linux-scsi@vger.kernel.org>, linux-r...@vger.kernel.org Sent: Friday, April 8, 2016 9:11:19 AM Subject: Re: Cant write to max_sectors_kb on 4.5.0 SRP target Hi Ewan, OK, that makes sense. I suspected after everybody's responses that RHEL was somehow ignoring the array imposed limit here.

Re: Cant write to max_sectors_kb on 4.5.0 SRP target

2016-04-08 Thread Laurence Oberman
in.peter...@oracle.com>, "linux-scsi" <linux-scsi@vger.kernel.org>, linux-r...@vger.kernel.org Sent: Friday, April 8, 2016 8:39:52 AM Subject: Re: Cant write to max_sectors_kb on 4.5.0 SRP target The version of RHEL you are using does not have: commit ca369d51b3e1649be

Re: Cant write to max_sectors_kb on 4.5.0 SRP target

2016-04-08 Thread Ewan D. Milne
in K. Petersen" <martin.peter...@oracle.com> > To: "Laurence Oberman" <lober...@redhat.com> > Cc: "linux-scsi" <linux-scsi@vger.kernel.org>, linux-r...@vger.kernel.org > Sent: Thursday, April 7, 2016 11:00:16 PM > Subject: Re: Cant write to max_sectors_

Re: Cant write to max_sectors_kb on 4.5.0 SRP target

2016-04-08 Thread Laurence Oberman
r.kernel.org> Sent: Friday, April 8, 2016 1:30:28 AM Subject: Re: Cant write to max_sectors_kb on 4.5.0 SRP target Hi Laurence, On Thu, 2016-04-07 at 17:15 -0400, Laurence Oberman wrote: > Hello > > I have been testing the SRP initiator code to an LIO array here and > part of the testing req

Re: Cant write to max_sectors_kb on 4.5.0 SRP target

2016-04-08 Thread Laurence Oberman
; <linux-scsi@vger.kernel.org>, linux-r...@vger.kernel.org Sent: Thursday, April 7, 2016 10:49:58 PM Subject: Re: Cant write to max_sectors_kb on 4.5.0 SRP target On 04/07/16 14:16, Laurence Oberman wrote: > I have been testing the SRP in

Re: Cant write to max_sectors_kb on 4.5.0 SRP target

2016-04-07 Thread Nicholas A. Bellinger
Hi Laurence, On Thu, 2016-04-07 at 17:15 -0400, Laurence Oberman wrote: > Hello > > I have been testing the SRP initiator code to an LIO array here and > part of the testing requires me to set the max_sectors_kb size to get > 4k I/O's. > This has been due to me having to debug various sg_map

Re: Cant write to max_sectors_kb on 4.5.0 SRP target

2016-04-07 Thread Martin K. Petersen
> "Laurence" == Laurence Oberman writes: Laurence, The target is reporting inconsistent values here: > [root@srptest queue]# sg_inq --p 0xb0 /dev/sdb > VPD INQUIRY: Block limits page (SBC) > Maximum compare and write length: 1 blocks > Optimal transfer length

Re: Cant write to max_sectors_kb on 4.5.0 SRP target

2016-04-07 Thread Bart Van Assche
On 04/07/16 14:16, Laurence Oberman wrote: I have been testing the SRP initiator code to an LIO array here and > part of the testing requires me to set the max_sectors_kb size to > get 4k I/O's. . Hello Laurence, Have you

Cant write to max_sectors_kb on 4.5.0 SRP target

2016-04-07 Thread Laurence Oberman
Hello I have been testing the SRP initiator code to an LIO array here and part of the testing requires me to set the max_sectors_kb size to get 4k I/O's. This has been due to me having to debug various sg_map issues. Linux srptest 4.5.0 #2 SMP Thu Apr 7 16:14:38 EDT 2016 x86_64 x86_64 x86_64