RE: [RFC PATCH v3 6/7] vfio/cdx: add support for CDX bus
From: "Gupta, Nipun" <Nipun.Gupta@amd.com>
Date: 2022-09-06 17:30:26
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-----Original Message----- From: Jason Gunthorpe <jgg@nvidia.com> Sent: Tuesday, September 6, 2022 10:51 PM To: Gupta, Nipun <Nipun.Gupta@amd.com> Cc: robh+dt@kernel.org; krzysztof.kozlowski+dt@linaro.org; gregkh@linuxfoundation.org; rafael@kernel.org; eric.auger@redhat.com; alex.williamson@redhat.com; cohuck@redhat.com; Gupta, Puneet (DCG-ENG) [off-list ref]; song.bao.hua@hisilicon.com; mchehab+huawei@kernel.org; maz@kernel.org; f.fainelli@gmail.com; jeffrey.l.hugo@gmail.com; saravanak@google.com; Michael.Srba@seznam.cz; mani@kernel.org; yishaih@nvidia.com; robin.murphy@arm.com; will@kernel.org; joro@8bytes.org; masahiroy@kernel.org; ndesaulniers@google.com; linux-arm-kernel@lists.infradead.org; linux- kbuild@vger.kernel.org; linux-kernel@vger.kernel.org; devicetree@vger.kernel.org; kvm@vger.kernel.org; okaya@kernel.org; Anand, Harpreet [off-list ref]; Agarwal, Nikhil [off-list ref]; Simek, Michal [off-list ref]; Radovanovic, Aleksandar [off-list ref]; git (AMD-Xilinx) [off-list ref] Subject: Re: [RFC PATCH v3 6/7] vfio/cdx: add support for CDX bus [CAUTION: External Email] On Tue, Sep 06, 2022 at 07:18:00PM +0530, Nipun Gupta wrote:quoted
vfio-cdx driver enables IOCTLs for user space to query MMIO regions for CDX devices and mmap them. This change also adds support for reset of CDX devices. This change adds the VFIO CDX driver and enables the following ioctls for CDX devices: - VFIO_DEVICE_GET_INFO: - VFIO_DEVICE_GET_REGION_INFO - VFIO_DEVICE_RESETFor non-RFC posting please post VFIO separately after getting the base bus merged.
Agree, with non-RFC changes we will get bus merged first and then have the vfio patches as a separate set. Thanks, Nipun
I think you will need to get some work done to consolidate some of this duplicated code that was cut & pasted here.. Jason
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