From: Christoph Hellwig <hch@lst.de>
To: Yongji Xie <xieyongji@bytedance.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>,
linux-kernel <linux-kernel@vger.kernel.org>,
virtualization <virtualization@lists.linux-foundation.org>,
Thomas Gleixner <tglx@linutronix.de>,
Christoph Hellwig <hch@lst.de>
Subject: Re: [PATCH v2 01/11] genirq/affinity:: Export irq_create_affinity_masks()
Date: Tue, 6 Dec 2022 09:47:36 +0100 [thread overview]
Message-ID: <20221206084736.GA9507@lst.de> (raw)
In-Reply-To: <CACycT3sXHGQt_V=rgwvEv4v8+oUaAOu1T=tWrKePdybMHagzng@mail.gmail.com>
On Tue, Dec 06, 2022 at 04:40:37PM +0800, Yongji Xie wrote:
> With the vDPA framework, some drivers (vduse, vdpa-sim) can create
> software-defined virtio devices and attach them to the virtio bus.
> This kind of virtio device is not a pci device or a platform device.
> So it would be needed to export this function if we want to implement
> the automatic affinity management for the virtio device driver which
> is binded to this device.
Why are these devices even using interrupts? The whjole vdpa thing
is a mess, I also still need to fix up the horrible abuse of the DMA
API for something that isn't even DMA, and this just seems to spread
that same mistake even further.
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next prev parent reply other threads:[~2022-12-06 8:47 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20221205084127.535-1-xieyongji@bytedance.com>
[not found] ` <20221205084127.535-3-xieyongji@bytedance.com>
2022-12-16 3:52 ` [PATCH v2 02/11] vdpa: Add set/get_vq_affinity callbacks in vdpa_config_ops Jason Wang
[not found] ` <20221205084127.535-4-xieyongji@bytedance.com>
2022-12-16 3:58 ` [PATCH v2 03/11] vdpa: Add set_irq_affinity callback " Jason Wang
[not found] ` <CACycT3u237c2jHaYeoPQoXK1eb4FDOJJcc6_21N3m=aBHsDwFg@mail.gmail.com>
2022-12-19 6:06 ` Jason Wang
[not found] ` <CACycT3t1AVyDjZ-HzWPHxfhur=hh9aYW3=Fp7ML8YieBbwDa+Q@mail.gmail.com>
2022-12-20 6:31 ` Jason Wang
[not found] ` <CACycT3vP42dpq5NXFJ-Qua=MKsW9visq+mykS7H6i9gUcqo4NQ@mail.gmail.com>
2022-12-21 3:20 ` Jason Wang
[not found] ` <20221205084127.535-5-xieyongji@bytedance.com>
2022-12-16 3:59 ` [PATCH v2 04/11] vduse: Refactor allocation for vduse virtqueues Jason Wang
[not found] ` <20221205084127.535-6-xieyongji@bytedance.com>
2022-12-16 4:02 ` [PATCH v2 05/11] vduse: Introduce bound workqueue for irq injection Jason Wang
[not found] ` <CACycT3tyR0zTfTgE3BhL0GZqWAj2KDC0Q+tfm+rV=wbgHPOhFA@mail.gmail.com>
2022-12-20 6:27 ` Jason Wang
[not found] ` <CACycT3vMktY1g57NhRMnAD0_F45MxpM=730reN-U_qqaN=daDg@mail.gmail.com>
2022-12-21 3:19 ` Jason Wang
[not found] ` <20221205085846.741-1-xieyongji@bytedance.com>
2022-12-16 5:30 ` [PATCH v2 06/11] vduse: Support automatic irq callback affinity Jason Wang
[not found] ` <CACycT3vu0_xCG7SvdP-zkZkuOGdudx2apOwi3CZ4MOFSe-XAFg@mail.gmail.com>
2022-12-20 6:32 ` Jason Wang
[not found] ` <20221205090243.791-1-xieyongji@bytedance.com>
[not found] ` <20221205090243.791-2-xieyongji@bytedance.com>
2022-12-16 5:35 ` [PATCH v2 08/11] vduse: Add sysfs interface for " Jason Wang
[not found] ` <CACycT3sGf9-zvR_XGEJuPVQhLSp4zsiO1x7RZ5KHBKbE5Deu2Q@mail.gmail.com>
2022-12-20 6:29 ` Jason Wang
[not found] ` <20221205090243.791-3-xieyongji@bytedance.com>
2022-12-16 5:43 ` [PATCH v2 09/11] vduse: Add enable_irq_wq sysfs interface for virtqueues Jason Wang
[not found] ` <20221205090243.791-4-xieyongji@bytedance.com>
2022-12-16 5:49 ` [PATCH v2 10/11] vduse: Delay iova domain creation Jason Wang
[not found] ` <20221205090243.791-5-xieyongji@bytedance.com>
2022-12-16 6:02 ` [PATCH v2 11/11] vduse: Support specifying bounce buffer size via sysfs Jason Wang
[not found] ` <20221205084127.535-2-xieyongji@bytedance.com>
2022-12-06 8:18 ` [PATCH v2 01/11] genirq/affinity:: Export irq_create_affinity_masks() Christoph Hellwig
[not found] ` <CACycT3sXHGQt_V=rgwvEv4v8+oUaAOu1T=tWrKePdybMHagzng@mail.gmail.com>
2022-12-06 8:47 ` Christoph Hellwig [this message]
[not found] ` <CACycT3uk4FCswFj8VqqPDgdEM73iqMnYSL8j6DYxCiy1FNSvHQ@mail.gmail.com>
2022-12-07 5:56 ` Jason Wang
2022-12-19 7:33 ` Michael S. Tsirkin
[not found] ` <CACycT3utDJFZtWzqCUXJaqRjkCXPMTAi+VJd3g6dw25vWqaduw@mail.gmail.com>
2023-01-27 8:22 ` Michael S. Tsirkin
[not found] ` <CACycT3u=vULuZ9-ZakBjxmbu88iUb+xB2mHJUnHA_8SuUV7H4w@mail.gmail.com>
2023-02-13 11:59 ` Michael S. Tsirkin
[not found] ` <CACycT3uY1dfP=5d1go+POh7-J1tUMW+9RXi92KtcFJYMzq-bOQ@mail.gmail.com>
2023-02-13 18:53 ` Thomas Gleixner
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