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Message-ID: <BN9PR11MB527698373FD71F975F3C5D7F8C0C9@BN9PR11MB5276.namprd11.prod.outlook.com>
Date: Wed, 23 Nov 2022 07:57:49 +0000
From: "Tian, Kevin" <kevin.tian@...el.com>
To: Thomas Gleixner <tglx@...utronix.de>,
LKML <linux-kernel@...r.kernel.org>
CC: "x86@...nel.org" <x86@...nel.org>, Joerg Roedel <joro@...tes.org>,
"Will Deacon" <will@...nel.org>,
"linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
Bjorn Helgaas <bhelgaas@...gle.com>,
"Lorenzo Pieralisi" <lorenzo.pieralisi@....com>,
Marc Zyngier <maz@...nel.org>,
"Greg Kroah-Hartman" <gregkh@...uxfoundation.org>,
Jason Gunthorpe <jgg@...lanox.com>,
"Jiang, Dave" <dave.jiang@...el.com>,
Alex Williamson <alex.williamson@...hat.com>,
"Williams, Dan J" <dan.j.williams@...el.com>,
Logan Gunthorpe <logang@...tatee.com>,
"Raj, Ashok" <ashok.raj@...el.com>, Jon Mason <jdmason@...zu.us>,
Allen Hubbe <allenbh@...il.com>
Subject: RE: [patch V2 03/33] genirq/msi: Provide data structs for per device
domains
> From: Thomas Gleixner <tglx@...utronix.de>
> Sent: Monday, November 21, 2022 10:38 PM
>
> Provide struct msi_domain_template which contains a bundle of struct
> irq_chip, struct msi_domain_ops and struct msi_domain_info and a name
> field.
>
> This template is used by MSI device domain implementations to provide the
> domain specific functionality, feature bits etc.
>
> When a MSI domain is created the template is duplicated in the core code
> so that it can be modified per instance. That means templates can be
> marked const at the MSI device domain code.
>
> The template is a bundle to avoid several allocations and duplications
> of the involved structures.
>
> The name field is used to construct the final domain and chip name via:
>
> $PREFIX-$NAME-$DEVNAME
$PREFIX$NAME-$DEVNAME
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