From: Tyrel Datwyler <tyreld@linux.ibm.com>
To: Nathan Lynch <nathanl@linux.ibm.com>, linuxppc-dev@lists.ozlabs.org
Cc: brking@linux.ibm.com
Subject: Re: [PATCH] powerpc/pseries/dlpar: handle ibm,configure-connector delay status
Date: Fri, 5 Feb 2021 11:46:57 -0800 [thread overview]
Message-ID: <925c3f11-41e1-2f2a-3dd3-d6ce4907b4ef@linux.ibm.com> (raw)
In-Reply-To: <20210107025900.410369-1-nathanl@linux.ibm.com>
On 1/6/21 6:59 PM, Nathan Lynch wrote:
> dlpar_configure_connector() has two problems in its handling of
> ibm,configure-connector's return status:
>
> 1. When the status is -2 (busy, call again), we call
> ibm,configure-connector again immediately without checking whether
> to schedule, which can result in monopolizing the CPU.
> 2. Extended delay status (9900..9905) goes completely unhandled,
> causing the configuration to unnecessarily terminate.
>
> Fix both of these issues by using rtas_busy_delay().
>
> Fixes: ab519a011caa ("powerpc/pseries: Kernel DLPAR Infrastructure")
> Signed-off-by: Nathan Lynch <nathanl@linux.ibm.com>
Reviewed-by: Tyrel Datwyler <tyreld@linux.ibm.com>
next prev parent reply other threads:[~2021-02-05 19:49 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-07 2:59 [PATCH] powerpc/pseries/dlpar: handle ibm, configure-connector delay status Nathan Lynch
2021-02-05 13:15 ` Nathan Lynch
2021-02-05 19:46 ` Tyrel Datwyler [this message]
2021-02-10 12:57 ` Michael Ellerman
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