From: Reinette Chatre <reinette.chatre@intel.com>
To: Tony Luck <tony.luck@intel.com>, Fenghua Yu <fenghuay@nvidia.com>,
"Maciej Wieczor-Retman" <maciej.wieczor-retman@intel.com>,
Peter Newman <peternewman@google.com>,
James Morse <james.morse@arm.com>,
Babu Moger <babu.moger@amd.com>,
Drew Fustini <dfustini@baylibre.com>,
Dave Martin <Dave.Martin@arm.com>
Cc: <linux-kernel@vger.kernel.org>, <patches@lists.linux.dev>
Subject: Re: [PATCH v2 04/16] x86/resctrl: Change generic monitor functions to use struct rdt_domain_hdr
Date: Mon, 31 Mar 2025 09:15:36 -0700 [thread overview]
Message-ID: <012377fd-e292-42fc-b348-4bb5e5becb97@intel.com> (raw)
In-Reply-To: <20250321231609.57418-5-tony.luck@intel.com>
Hi Tony,
On 3/21/25 4:15 PM, Tony Luck wrote:
> Functions that don't need the internal details of the rdt_mon_domain
> can operate on just the rdt_domain_hdr.
This does not seem accurate. The functions are modified to take rdt_domain_hdr
as parameter but then the functions are modified to extract rdt_mon_domain
based on rdt_domain_hdr .... and proceeds to operate on internals of
rdt_mon_domain in a way that contradicts the changelog.
Considering what comes later this seems risky to me to rely on the
code flow to interpret which structure rdt_domain_hdr forms part of. I think
that it will be safer if rdt_domain_hdr gets an identifier that reflects which
structure it forms part of so that the accessors could be made explicit and
have error checking.
Reinette
next prev parent reply other threads:[~2025-03-31 16:16 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-03-21 23:15 [PATCH v2 00/16] x86/resctrl telemetry monitoring Tony Luck
2025-03-21 23:15 ` [PATCH v2 01/16] x86/rectrl: Fake OOBMSM interface Tony Luck
2025-03-31 16:14 ` Reinette Chatre
2025-03-31 21:09 ` Luck, Tony
2025-03-21 23:15 ` [PATCH v2 02/16] x86/resctrl: Move L3 initialization out of domain_add_cpu_mon() Tony Luck
2025-03-21 23:15 ` [PATCH v2 03/16] x86/resctrl: Refactor domain_remove_cpu_mon() ready for new domain types Tony Luck
2025-03-21 23:15 ` [PATCH v2 04/16] x86/resctrl: Change generic monitor functions to use struct rdt_domain_hdr Tony Luck
2025-03-31 16:15 ` Reinette Chatre [this message]
2025-03-31 21:14 ` Luck, Tony
2025-03-21 23:15 ` [PATCH v2 05/16] x86/resctrl: Add and initialize rdt_resource for package scope core monitor Tony Luck
2025-03-31 16:18 ` Reinette Chatre
2025-03-31 21:22 ` Luck, Tony
2025-03-31 23:49 ` Reinette Chatre
2025-03-21 23:15 ` [PATCH v2 06/16] x86/resctrl: Prepare for resource specific event ids Tony Luck
2025-03-21 23:15 ` [PATCH v2 07/16] x86/resctrl: Add initialization hook for Intel PMT events Tony Luck
2025-03-31 16:20 ` Reinette Chatre
2025-03-31 21:53 ` Luck, Tony
2025-04-01 0:07 ` Reinette Chatre
2025-03-21 23:15 ` [PATCH v2 08/16] x86/resctrl: Add Intel PMT domain specific code Tony Luck
2025-03-21 23:15 ` [PATCH v2 09/16] x86/resctrl: Add detailed descriptions for Clearwater Forest events Tony Luck
2025-03-31 16:21 ` Reinette Chatre
2025-03-31 22:07 ` Luck, Tony
2025-04-01 0:13 ` Reinette Chatre
2025-03-21 23:16 ` [PATCH v2 10/16] x86/resctrl: Allocate per-package structures for known events Tony Luck
2025-03-31 16:21 ` Reinette Chatre
2025-03-31 22:23 ` Luck, Tony
2025-04-01 0:22 ` Luck, Tony
2025-03-21 23:16 ` [PATCH v2 11/16] x86/resctrl: Link known events onto RDT_RESOURCE_INTEL_AET.evt_list Tony Luck
2025-03-31 16:23 ` Reinette Chatre
2025-03-31 22:29 ` Luck, Tony
2025-03-21 23:16 ` [PATCH v2 12/16] x86/resctrl: Build lookup table for package events Tony Luck
2025-03-21 23:16 ` [PATCH v2 13/16] x86/resctrl: Add code to display core telemetry events Tony Luck
2025-03-31 16:23 ` Reinette Chatre
2025-03-31 22:42 ` Luck, Tony
2025-03-21 23:16 ` [PATCH v2 14/16] x86/resctrl: Add status files to info/PKG_MON Tony Luck
2025-03-21 23:16 ` [PATCH v2 15/16] x86/resctrl: Enable package event monitoring Tony Luck
2025-03-21 23:16 ` [PATCH v2 16/16] x86/resctrl: Update Documentation for package events Tony Luck
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