> > - Later we can explore if nr_hw_queue more than one really add benefit.
> > From current limited testing, I don't see major performance boost if
> > we have nr_hw_queue more than one.
> >
> Well, the _actual_ code to support mq is rather trivial, and really serves
> as a
> good testbed for scsi
; James Bottomley; linux-
>> s...@vger.kernel.org; Sathya Prakash Veerichetty; PDL-MPT-FUSIONLINUX
>> Subject: Re: [PATCH 00/10] mpt3sas: full mq support
>>
>> On 02/15/2017 10:18 AM, Kashyap Desai wrote:
>>>>
>>>>
>>>> Hannes,
>>>>
>&
DL-MPT-FUSIONLINUX
> Subject: Re: [PATCH 00/10] mpt3sas: full mq support
>
> On 02/15/2017 10:18 AM, Kashyap Desai wrote:
> >>
> >>
> >> Hannes,
> >>
> >> Result I have posted last time is with merge operation enabled in
> >> bloc
On 02/15/2017 10:18 AM, Kashyap Desai wrote:
>>
>>
>> Hannes,
>>
>> Result I have posted last time is with merge operation enabled in block
>> layer. If I disable merge operation then I don't see much improvement
>> with
>> multiple hw request queues. Here is the result,
>>
>> fio results when nr_h
>
>
> Hannes,
>
> Result I have posted last time is with merge operation enabled in block
> layer. If I disable merge operation then I don't see much improvement
> with
> multiple hw request queues. Here is the result,
>
> fio results when nr_hw_queues=1,
> 4k read when numjobs=24: io=248387MB, bw=
On Mon, Feb 13, 2017 at 6:41 PM, Hannes Reinecke wrote:
> On 02/13/2017 07:15 AM, Sreekanth Reddy wrote:
>> On Fri, Feb 10, 2017 at 12:29 PM, Hannes Reinecke wrote:
>>> On 02/10/2017 05:43 AM, Sreekanth Reddy wrote:
On Thu, Feb 9, 2017 at 6:42 PM, Hannes Reinecke wrote:
> On 02/09/2017
On 02/15/2017 09:15 AM, Christoph Hellwig wrote:
> On Tue, Feb 07, 2017 at 02:19:09PM +0100, Christoph Hellwig wrote:
>> Patch 1-7 look fine to me with minor fixups, and I'd love to see
>> them go into 4.11.
>
> Any chance to see a resend of these?
>
Sure.
Will do shortly.
Cheers,
Hannes
--
D
On Tue, Feb 07, 2017 at 02:19:09PM +0100, Christoph Hellwig wrote:
> Patch 1-7 look fine to me with minor fixups, and I'd love to see
> them go into 4.11.
Any chance to see a resend of these?
On 02/13/2017 07:15 AM, Sreekanth Reddy wrote:
> On Fri, Feb 10, 2017 at 12:29 PM, Hannes Reinecke wrote:
>> On 02/10/2017 05:43 AM, Sreekanth Reddy wrote:
>>> On Thu, Feb 9, 2017 at 6:42 PM, Hannes Reinecke wrote:
On 02/09/2017 02:03 PM, Sreekanth Reddy wrote:
>> [ .. ]
>
>
> Ha
On Fri, Feb 10, 2017 at 12:29 PM, Hannes Reinecke wrote:
> On 02/10/2017 05:43 AM, Sreekanth Reddy wrote:
>> On Thu, Feb 9, 2017 at 6:42 PM, Hannes Reinecke wrote:
>>> On 02/09/2017 02:03 PM, Sreekanth Reddy wrote:
> [ .. ]
Hannes,
I have created a md raid0 with 4 SAS SSD
On 02/10/2017 05:43 AM, Sreekanth Reddy wrote:
> On Thu, Feb 9, 2017 at 6:42 PM, Hannes Reinecke wrote:
>> On 02/09/2017 02:03 PM, Sreekanth Reddy wrote:
[ .. ]
>>>
>>>
>>> Hannes,
>>>
>>> I have created a md raid0 with 4 SAS SSD drives using below command,
>>> #mdadm --create /dev/md0 --level=0 -
;>>>> -Original Message-
>>>>>>> From: Hannes Reinecke [mailto:h...@suse.de]
>>>>>>> Sent: Tuesday, January 31, 2017 4:47 PM
>>>>>>> To: Christoph Hellwig
>>>>>>> Cc: Martin K. Petersen; Jame
gt;>> Sent: Wednesday, February 01, 2017 12:21 PM
>>>> To: Kashyap Desai; Christoph Hellwig
>>>> Cc: Martin K. Petersen; James Bottomley; linux-scsi@vger.kernel.org;
>>>> Sathya
>>>> Prakash Veerichetty; PDL-MPT-FUSIONLINUX; Sreekanth Reddy
: Kashyap Desai; Christoph Hellwig
>>> Cc: Martin K. Petersen; James Bottomley; linux-scsi@vger.kernel.org;
>>> Sathya
>>> Prakash Veerichetty; PDL-MPT-FUSIONLINUX; Sreekanth Reddy
>>> Subject: Re: [PATCH 00/10] mpt3sas: full mq support
>>>
>>> On 01/
On 02/07/2017 04:40 PM, Christoph Hellwig wrote:
> On Tue, Feb 07, 2017 at 04:39:01PM +0100, Hannes Reinecke wrote:
>> But we do; we're getting the index/tag/smid from the high-priority list,
>> which is separated from the normal SCSI I/O tag space.
>> (which reminds me; there's another cleanup pat
On Tue, Feb 07, 2017 at 04:39:01PM +0100, Hannes Reinecke wrote:
> But we do; we're getting the index/tag/smid from the high-priority list,
> which is separated from the normal SCSI I/O tag space.
> (which reminds me; there's another cleanup patch to be had in
> _ctl_do_mpt_command(), but that's be
On 02/07/2017 04:34 PM, Christoph Hellwig wrote:
> On Tue, Feb 07, 2017 at 03:38:51PM +0100, Hannes Reinecke wrote:
>> The SCSI passthrough commands pass in pre-formatted SGLs, so the driver
>> just has to map them.
>> If we were converting that we first have to re-format the
>> (driver-specific) S
On Tue, Feb 07, 2017 at 03:38:51PM +0100, Hannes Reinecke wrote:
> The SCSI passthrough commands pass in pre-formatted SGLs, so the driver
> just has to map them.
> If we were converting that we first have to re-format the
> (driver-specific) SGLs into linux sg lists, only to have them converted
>
On 02/07/2017 02:19 PM, Christoph Hellwig wrote:
> Patch 1-7 look fine to me with minor fixups, and I'd love to see
> them go into 4.11. The last one looks really questionable,
> and 8 and 9 will need some work so that the MPT passthrough ioctls
> either go away or make use of struct request and t
Patch 1-7 look fine to me with minor fixups, and I'd love to see
them go into 4.11. The last one looks really questionable,
and 8 and 9 will need some work so that the MPT passthrough ioctls
either go away or make use of struct request and the block layer
and SCSI infrastructure.
; PDL-MPT-FUSIONLINUX; Sreekanth Reddy
Subject: Re: [PATCH 00/10] mpt3sas: full mq support
On 01/31/2017 06:54 PM, Kashyap Desai wrote:
-Original Message-
From: Hannes Reinecke [mailto:h...@suse.de]
Sent: Tuesday, January 31, 2017 4:47 PM
To: Christoph Hellwig
Cc: Martin K. Petersen; James
USIONLINUX; Sreekanth Reddy
> Subject: Re: [PATCH 00/10] mpt3sas: full mq support
>
> On 01/31/2017 06:54 PM, Kashyap Desai wrote:
> >> -Original Message-
> >> From: Hannes Reinecke [mailto:h...@suse.de]
> >> Sent: Tuesday, January 31, 2017 4:47 PM
>
@broadcom.com
Subject: Re: [PATCH 00/10] mpt3sas: full mq support
On 01/31/2017 11:02 AM, Christoph Hellwig wrote:
On Tue, Jan 31, 2017 at 10:25:50AM +0100, Hannes Reinecke wrote:
Hi all,
this is a patchset to enable full multiqueue support for the mpt3sas
driver.
While the HBA only has a
.com
> Subject: Re: [PATCH 00/10] mpt3sas: full mq support
>
> On 01/31/2017 11:02 AM, Christoph Hellwig wrote:
> > On Tue, Jan 31, 2017 at 10:25:50AM +0100, Hannes Reinecke wrote:
> >> Hi all,
> >>
> >> this is a patchset to enable full multiqueue support fo
On 01/31/2017 11:02 AM, Christoph Hellwig wrote:
> On Tue, Jan 31, 2017 at 10:25:50AM +0100, Hannes Reinecke wrote:
>> Hi all,
>>
>> this is a patchset to enable full multiqueue support for the mpt3sas driver.
>> While the HBA only has a single mailbox register for submitting commands,
>> it does h
On Tue, Jan 31, 2017 at 10:25:50AM +0100, Hannes Reinecke wrote:
> Hi all,
>
> this is a patchset to enable full multiqueue support for the mpt3sas driver.
> While the HBA only has a single mailbox register for submitting commands,
> it does have individual receive queues per MSI-X interrupt and a
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