linux-kernel - Re: [PATCH v12 3/8] x86/resctrl: Prepare for different scope for control/monitor operations

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Message-ID: <cb925ffc-7c36-4a81-a61d-adc4d7e793e5@intel.com>
Date:   Thu, 30 Nov 2023 13:51:50 -0800
From:   Reinette Chatre <reinette.chatre@...el.com>
To:     Tony Luck <tony.luck@...el.com>, Fenghua Yu <fenghua.yu@...el.com>,
        "Peter Newman" <peternewman@...gle.com>,
        Jonathan Corbet <corbet@....net>,
        Shuah Khan <skhan@...uxfoundation.org>, <x86@...nel.org>
CC:     Shaopeng Tan <tan.shaopeng@...itsu.com>,
        James Morse <james.morse@....com>,
        Jamie Iles <quic_jiles@...cinc.com>,
        Babu Moger <babu.moger@....com>,
        Randy Dunlap <rdunlap@...radead.org>,
        <linux-kernel@...r.kernel.org>, <linux-doc@...r.kernel.org>,
        <patches@...ts.linux.dev>,
        Shaopeng Tan <tan.shaopeng@...fujitsu.com>
Subject: Re: [PATCH v12 3/8] x86/resctrl: Prepare for different scope for
 control/monitor operations

Hi Tony,

On 11/29/2023 4:34 PM, Tony Luck wrote:
> Resctrl assumes that control and monitor operations on a resource are
> performed at the same scope.
> 
> Prepare for systems that use different scope (specifically Intel needs
> to split the RDT_RESOURCE_L3 resource to use L3 scope for cache control
> and NODE scope for cache occupancy and memory bandwidth monitoring).
> 
> Create separate domain lists for control and monitor operations.
> 
> Note that errors during initialization of either control or monitor
> functions on a domain would previously result in that domain being
> excluded from both control and monitor operations. Now the domains are
> allocated independently it is no longer required to disable both control
> and monitor operations if either fail.
> 
> Signed-off-by: Tony Luck <tony.luck@...el.com>
> Reviewed-by: Shaopeng Tan <tan.shaopeng@...fujitsu.com>
> Tested-by: Shaopeng Tan <tan.shaopeng@...fujitsu.com>
> ---

According to Documentation/process/maintainer-tip.rst the
"Tested-by" tag should go before the "Reviewed-by" tag. Please
check the whole series.

Reviewed-by: Reinette Chatre <reinette.chatre@...el.com>

Reinette