From: Reinette Chatre <reinette.chatre@intel.com>
To: "Moger, Babu" <bmoger@amd.com>, Babu Moger <babu.moger@amd.com>,
<corbet@lwn.net>, <tony.luck@intel.com>, <Dave.Martin@arm.com>,
<james.morse@arm.com>, <tglx@linutronix.de>, <mingo@redhat.com>,
<bp@alien8.de>, <dave.hansen@linux.intel.com>
Cc: <x86@kernel.org>, <hpa@zytor.com>, <kas@kernel.org>,
<rick.p.edgecombe@intel.com>, <akpm@linux-foundation.org>,
<paulmck@kernel.org>, <pmladek@suse.com>,
<pawan.kumar.gupta@linux.intel.com>, <rostedt@goodmis.org>,
<kees@kernel.org>, <arnd@arndb.de>, <fvdl@google.com>,
<seanjc@google.com>, <thomas.lendacky@amd.com>,
<manali.shukla@amd.com>, <perry.yuan@amd.com>,
<sohil.mehta@intel.com>, <xin@zytor.com>, <peterz@infradead.org>,
<mario.limonciello@amd.com>, <gautham.shenoy@amd.com>,
<nikunj@amd.com>, <dapeng1.mi@linux.intel.com>,
<ak@linux.intel.com>, <chang.seok.bae@intel.com>,
<ebiggers@google.com>, <linux-doc@vger.kernel.org>,
<linux-kernel@vger.kernel.org>, <linux-coco@lists.linux.dev>,
<kvm@vger.kernel.org>
Subject: Re: [PATCH v9 09/10] fs/resctrl: Introduce interface to modify io_alloc Capacity Bit Masks
Date: Mon, 22 Sep 2025 15:48:29 -0700 [thread overview]
Message-ID: <0c110b5f-de24-4ffd-bc9c-3597493bab7d@intel.com> (raw)
In-Reply-To: <7c6a4f7e-e810-4d81-b01d-b0cbf644472f@amd.com>
Hi Babu,
On 9/19/25 1:49 PM, Moger, Babu wrote:
> Here is the updated full changelog.
>
> fs/resctrl: Introduce interface to modify io_alloc Capacity Bit Masks
I do not think it is necessary to use upper case if not following it
by the acronym. I also think "bitmask" is usually one word? So:
fs/resctrl: Introduce interface to modify io_alloc capacity bitmasks
>
> The io_alloc feature in resctrl enables system software to configure the
> portion of the cache allocated for I/O traffic. When supported, the
> io_alloc_cbm file in resctrl provides access to Capacity Bit Masks (CBMs) allocated for I/O devices.
>
> Enable users to modify io_alloc CBMs via io_alloc_cbm resctrl file when the feature is enabled.
(nit) can be made more specific with:
Enable users to modify io_alloc CBMs by writing to the io_alloc_cbm resctrl
file when the io_alloc feature is enabled.
>
> Mirror the CBMs between CDP_CODE and CDP_DATA when CDP is enabled to present consistent I/O allocation information to user space and keep both resource types synchronized.
I think "and keep both resource types synchronized" is redundant considering the sentence
starts with "Mirror the CBMs"?
Reinette
next prev parent reply other threads:[~2025-09-22 22:48 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-02 22:41 [PATCH v9 00/10] x86,fs/resctrl: Support L3 Smart Data Cache Injection Allocation Enforcement (SDCIAE) Babu Moger
2025-09-02 22:41 ` [PATCH v9 01/10] x86/cpufeatures: Add support for L3 Smart Data Cache Injection Allocation Enforcement Babu Moger
2025-09-18 5:08 ` Reinette Chatre
2025-09-19 15:45 ` Moger, Babu
2025-09-02 22:41 ` [PATCH v9 02/10] x86/resctrl: Add SDCIAE feature in the command line options Babu Moger
2025-09-18 5:09 ` Reinette Chatre
2025-09-19 16:40 ` Moger, Babu
2025-09-02 22:41 ` [PATCH v9 03/10] x86,fs/resctrl: Detect io_alloc feature Babu Moger
2025-09-18 5:15 ` Reinette Chatre
2025-09-19 16:53 ` Moger, Babu
2025-09-02 22:41 ` [PATCH v9 04/10] x86,fs/resctrl: Implement "io_alloc" enable/disable handlers Babu Moger
2025-09-18 5:19 ` Reinette Chatre
2025-09-19 17:18 ` Moger, Babu
2025-09-02 22:41 ` [PATCH v9 05/10] fs/resctrl: Introduce interface to display "io_alloc" support Babu Moger
2025-09-18 5:28 ` Reinette Chatre
2025-09-19 17:49 ` Moger, Babu
2025-09-02 22:41 ` [PATCH v9 06/10] fs/resctrl: Add user interface to enable/disable io_alloc feature Babu Moger
2025-09-18 5:37 ` Reinette Chatre
2025-09-19 19:09 ` Moger, Babu
2025-09-02 22:41 ` [PATCH v9 07/10] fs/resctrl: Introduce interface to display io_alloc CBMs Babu Moger
2025-09-18 5:43 ` Reinette Chatre
2025-09-19 19:38 ` Moger, Babu
2025-09-02 22:41 ` [PATCH v9 08/10] fs/resctrl: Modify rdt_parse_data to pass mode and CLOSID Babu Moger
2025-09-18 5:44 ` Reinette Chatre
2025-09-19 19:49 ` Moger, Babu
2025-09-02 22:41 ` [PATCH v9 09/10] fs/resctrl: Introduce interface to modify io_alloc Capacity Bit Masks Babu Moger
2025-09-18 6:03 ` Reinette Chatre
2025-09-19 20:49 ` Moger, Babu
2025-09-22 22:48 ` Reinette Chatre [this message]
2025-09-25 18:54 ` Moger, Babu
2025-09-02 22:41 ` [PATCH v9 10/10] fs/resctrl: Update bit_usage to reflect io_alloc Babu Moger
2025-09-18 6:08 ` Reinette Chatre
2025-09-19 21:05 ` Moger, Babu
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