From: Stewart Smith <stewart@linux.vnet.ibm.com>
To: Michael Ellerman <mpe@ellerman.id.au>,
Brian King <brking@linux.vnet.ibm.com>,
"Guilherme G. Piccoli" <gpiccoli@linux.vnet.ibm.com>
Cc: linuxppc-dev@ozlabs.org, "dougmill\@us.ibm.com" <dougmill@us.ibm.com>
Subject: Re: [PATCH] powerpc/powernv: Turn on SCSI_AACRAID in powernv_defconfig
Date: Mon, 04 Sep 2017 09:19:19 +1000 [thread overview]
Message-ID: <87y3pvgyko.fsf@linux.vnet.ibm.com> (raw)
In-Reply-To: <87mv6f56vl.fsf@concordia.ellerman.id.au>
Michael Ellerman <mpe@ellerman.id.au> writes:
>> 2. On a bare metal machine, if you set ipr.fast_reboot=1 on the skiboot
>> kernel, then we should also avoid resetting the ipr adapter, so ipr
>> init on the kernel being kexec booted from skiboot should be extremely fast.
>
> OK, I didn't know that was an option, so that might help.
>
>> ...
>> If you've got cases where ipr init is taking a long time, I'd be
>> interested to know what scenarios are the most annoying to see if there
>> is any opportunity to improve.
>
> Yeah booting bare metal is where I see it (not using ipr.fast_reboot).
Hrm... We should probably enable that by default for petitboot then.
It'd at least cut some time off booting straight through to OS.
--
Stewart Smith
OPAL Architect, IBM.
next prev parent reply other threads:[~2017-09-03 23:19 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-28 5:56 [PATCH] powerpc/powernv: Turn on SCSI_AACRAID in powernv_defconfig Michael Ellerman
2017-08-28 13:16 ` Guilherme G. Piccoli
2017-08-29 11:22 ` Michael Ellerman
2017-08-29 13:03 ` Guilherme G. Piccoli
2017-08-30 11:07 ` Michael Ellerman
2017-08-30 12:47 ` Guilherme G. Piccoli
2017-08-31 9:48 ` Stewart Smith
2017-08-31 12:37 ` Michael Ellerman
2017-08-31 15:31 ` Brian King
2017-09-01 5:23 ` Michael Ellerman
2017-09-03 23:19 ` Stewart Smith [this message]
2017-09-06 13:42 ` Brian King
2018-02-22 22:19 ` Michael Ellerman
2018-02-23 0:16 ` Stewart Smith
2018-02-23 19:41 ` Brian King
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