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From: Sumit Saxena <sumit.saxena@avagotech.com>
To: "Martin K. Petersen" <martin.petersen@oracle.com>,
	Tomas Henzl <thenzl@redhat.com>
Cc: jbottomley@parallels.com, hch@infradead.org,
	linux-scsi@vger.kernel.org,
	Kashyap Desai <kashyap.desai@avagotech.com>
Subject: RE: [PATCH 09/15] megaraid_sas: Dual Queue depth support
Date: Wed, 27 Jan 2016 12:39:40 +0530	[thread overview]
Message-ID: <621bde6eaedf5577d81013b828222cb9@mail.gmail.com> (raw)
In-Reply-To: <yq1k2mvixus.fsf@sermon.lab.mkp.net>

> -----Original Message-----
> From: Martin K. Petersen [mailto:martin.petersen@oracle.com]
> Sent: Wednesday, January 27, 2016 7:32 AM
> To: Tomas Henzl
> Cc: Sumit Saxena; jbottomley@parallels.com; hch@infradead.org;
> martin.petersen@oracle.com; linux-scsi@vger.kernel.org; Kashyap Desai
> Subject: Re: [PATCH 09/15] megaraid_sas: Dual Queue depth support
>
> >>>>> "Tomas" == Tomas Henzl <thenzl@redhat.com> writes:
>
> >> Yes this is already covered internally, there would be perf penalty
> >> with VDs in configuration but this feature will be turned on based on
> >> firmware settings and that specific firmware deployment has primary
> >> purpose of increasing JBOD performance. This focuses on firmware
> >> deployment with less VDs(or no) and more JBODs in configuration.
>
> Tomas> OK, so it is switched off by default in the firmware and the user
> Tomas> and an educated user can switch it on ? if so, it's fine for me.
>
> Sumit?

Yes, this feature will be enabled for specific firmware only. On rest of
firmware types, it will be disabled(not supported).

Thanks,
Sumit
>
> --
> Martin K. Petersen	Oracle Linux Engineering

  reply	other threads:[~2016-01-27  7:09 UTC|newest]

Thread overview: 50+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-12-18 13:26 [PATCH 00/15] megaraid_sas: Updates for scsi-next Sumit Saxena
2015-12-18 13:26 ` [PATCH 01/15] megaraid_sas: Do not allow PCI access during OCR Sumit Saxena
2016-01-11 17:02   ` Tomas Henzl
2015-12-18 13:26 ` [PATCH 02/15] megaraid_sas: MFI IO timeout handling Sumit Saxena
2016-01-11 17:02   ` Tomas Henzl
2015-12-18 13:26 ` [PATCH 03/15] megaraid_sas: Syncing request flags macro names with firmware Sumit Saxena
2016-01-11 17:03   ` Tomas Henzl
2015-12-18 13:26 ` [PATCH 04/15] megaraid_sas: Task management support Sumit Saxena
2016-01-11 17:03   ` Tomas Henzl
2016-01-14 12:04     ` Sumit Saxena
2015-12-18 13:26 ` [PATCH 05/15] megaraid_sas: Update device Queue depth based on interface type Sumit Saxena
2016-01-12 14:16   ` Tomas Henzl
2016-01-14 11:48     ` Sumit Saxena
2015-12-18 13:26 ` [PATCH 06/15] megaraid_sas: Fastpath region lock bypass Sumit Saxena
2016-01-12 14:44   ` Tomas Henzl
2015-12-18 13:27 ` [PATCH 07/15] megaraid_sas: Reply Descriptor Post Queue(RDPQ) support Sumit Saxena
2015-12-18 14:49   ` [PATCH] megaraid_sas: fix kzalloc-simple.cocci warnings kbuild test robot
2015-12-18 14:49   ` [PATCH 07/15] megaraid_sas: Reply Descriptor Post Queue(RDPQ) support kbuild test robot
2016-01-14 17:38   ` Tomas Henzl
2016-01-27 18:15     ` Sumit Saxena
2015-12-18 13:27 ` [PATCH 08/15] megaraid_sas: Code optimization build_and_issue_cmd return-type Sumit Saxena
2016-01-14 18:05   ` Tomas Henzl
2015-12-18 13:27 ` [PATCH 09/15] megaraid_sas: Dual Queue depth support Sumit Saxena
2016-01-19 13:34   ` Tomas Henzl
2016-01-19 13:44     ` Sumit Saxena
2016-01-20 13:55       ` Tomas Henzl
2016-01-20 14:09         ` Sumit Saxena
2016-01-20 14:16           ` Tomas Henzl
2016-01-20 15:08             ` Sumit Saxena
2016-01-20 16:00               ` Tomas Henzl
2016-01-27  2:02             ` Martin K. Petersen
2016-01-27  7:09               ` Sumit Saxena [this message]
2015-12-18 13:27 ` [PATCH 10/15] megaraid_sas: IO throttling support Sumit Saxena
2016-01-19 13:38   ` Tomas Henzl
2016-01-28  7:18     ` Sumit Saxena
2015-12-18 13:27 ` [PATCH 11/15] megaraid_sas: Make adprecovery variable atomic Sumit Saxena
2016-01-19 13:52   ` Tomas Henzl
2016-01-28  8:30     ` Sumit Saxena
2015-12-18 13:27 ` [PATCH 12/15] megaraid_sas: MFI adapter's OCR changes Sumit Saxena
2016-01-19 14:22   ` Tomas Henzl
2016-01-28 11:12     ` Sumit Saxena
2015-12-18 13:27 ` [PATCH 13/15] megaraid_sas: Introduce module parameter for SCSI command-timeout Sumit Saxena
2016-01-19 14:57   ` Tomas Henzl
2016-01-28 11:17     ` Sumit Saxena
2015-12-18 13:27 ` [PATCH 14/15] megaraid_sas: SPERC OCR changes Sumit Saxena
2016-01-19 15:14   ` Tomas Henzl
2015-12-18 13:27 ` [PATCH 15/15] megaraid_sas: SPERC boot driver reorder Sumit Saxena
2015-12-18 14:05   ` Christoph Hellwig
2016-01-08  7:07     ` Sumit Saxena
2016-01-12  5:26     ` Sumit Saxena

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