From: "hch@lst.de" <hch@lst.de>
To: Michael Kelley <mhklinux@outlook.com>
Cc: Bart Van Assche <bvanassche@acm.org>,
"kbusch@kernel.org" <kbusch@kernel.org>,
"axboe@kernel.dk" <axboe@kernel.dk>,
"sagi@grimberg.me" <sagi@grimberg.me>,
"James.Bottomley@HansenPartnership.com"
<James.Bottomley@HansenPartnership.com>,
"martin.petersen@oracle.com" <martin.petersen@oracle.com>,
"kys@microsoft.com" <kys@microsoft.com>,
"haiyangz@microsoft.com" <haiyangz@microsoft.com>,
"wei.liu@kernel.org" <wei.liu@kernel.org>,
"decui@microsoft.com" <decui@microsoft.com>,
"robin.murphy@arm.com" <robin.murphy@arm.com>,
"hch@lst.de" <hch@lst.de>,
"m.szyprowski@samsung.com" <m.szyprowski@samsung.com>,
"petr@tesarici.cz" <petr@tesarici.cz>,
"iommu@lists.linux.dev" <iommu@lists.linux.dev>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-nvme@lists.infradead.org" <linux-nvme@lists.infradead.org>,
"linux-scsi@vger.kernel.org" <linux-scsi@vger.kernel.org>,
"linux-hyperv@vger.kernel.org" <linux-hyperv@vger.kernel.org>,
"linux-coco@lists.linux.dev" <linux-coco@lists.linux.dev>
Subject: Re: [RFC 0/7] Introduce swiotlb throttling
Date: Sat, 24 Aug 2024 10:05:14 +0200 [thread overview]
Message-ID: <20240824080514.GA8527@lst.de> (raw)
In-Reply-To: <SN6PR02MB41577F000FD7A5EC70CF54D0D4882@SN6PR02MB4157.namprd02.prod.outlook.com>
On Fri, Aug 23, 2024 at 02:20:41AM +0000, Michael Kelley wrote:
> Christoph Hellwig, or anyone else who knows the history and current
> reality better than I do, please jump in. :-)
It's not just interrupt context, but any context that does not allow
blocking. There is plenty of that as seen by the moving of nvme
to specifically request a blocking context for I/O submission in this
path.
That being said there are probably more contexts that can block than
those that can't, so allowing for that option is a good thing.
next prev parent reply other threads:[~2024-08-24 8:05 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-08-22 18:37 [RFC 0/7] Introduce swiotlb throttling mhkelley58
2024-08-22 18:37 ` [RFC 1/7] swiotlb: " mhkelley58
2024-08-23 7:41 ` Petr Tesařík
2024-08-23 20:41 ` Michael Kelley
2024-08-27 15:55 ` Petr Tesařík
2024-08-27 17:30 ` Michael Kelley
2024-08-28 5:15 ` Petr Tesařík
2024-08-28 6:14 ` Michael Kelley
2024-08-22 18:37 ` [RFC 2/7] dma: Handle swiotlb throttling for SGLs mhkelley58
2024-08-23 8:02 ` Petr Tesařík
2024-08-23 20:42 ` Michael Kelley
2024-08-24 19:56 ` Petr Tesařík
2024-08-22 18:37 ` [RFC 3/7] dma: Add function for drivers to know if allowing blocking is useful mhkelley58
2024-08-23 8:07 ` Petr Tesařík
2024-08-22 18:37 ` [RFC 4/7] scsi_lib_dma: Add _attrs variant of scsi_dma_map() mhkelley58
2024-08-23 8:08 ` Petr Tesařík
2024-08-22 18:37 ` [RFC 5/7] scsi: storvsc: Enable swiotlb throttling mhkelley58
2024-08-23 8:19 ` Petr Tesařík
2024-08-23 20:42 ` Michael Kelley
2024-08-22 18:37 ` [RFC 6/7] nvme: Move BLK_MQ_F_BLOCKING indicator to struct nvme_ctrl mhkelley58
2024-08-23 8:22 ` Petr Tesařík
2024-08-22 18:37 ` [RFC 7/7] nvme: Enable swiotlb throttling for NVMe PCI devices mhkelley58
2024-08-23 8:26 ` Petr Tesařík
2024-08-22 19:29 ` [RFC 0/7] Introduce swiotlb throttling Bart Van Assche
2024-08-23 2:20 ` Michael Kelley
2024-08-23 5:46 ` Petr Tesařík
2024-08-24 8:05 ` hch [this message]
2024-08-23 6:44 ` Petr Tesařík
2024-08-23 20:40 ` Michael Kelley
2024-08-24 20:05 ` Petr Tesařík
2024-08-26 16:24 ` Michael Kelley
2024-08-26 19:28 ` Petr Tesařík
2024-08-27 0:26 ` Michael Kelley
2024-08-27 8:00 ` Petr Tesařík
2024-08-24 8:16 ` Christoph Hellwig
2024-08-26 15:27 ` Michael Kelley
2024-08-27 7:14 ` Christoph Hellwig
2024-08-28 12:02 ` Robin Murphy
2024-08-28 13:03 ` Petr Tesařík
2024-08-28 16:30 ` Michael Kelley
2024-08-28 16:41 ` Petr Tesařík
2024-08-28 19:50 ` Robin Murphy
2024-08-30 3:58 ` Michael Kelley
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20240824080514.GA8527@lst.de \
--to=hch@lst.de \
--cc=James.Bottomley@HansenPartnership.com \
--cc=axboe@kernel.dk \
--cc=bvanassche@acm.org \
--cc=decui@microsoft.com \
--cc=haiyangz@microsoft.com \
--cc=iommu@lists.linux.dev \
--cc=kbusch@kernel.org \
--cc=kys@microsoft.com \
--cc=linux-coco@lists.linux.dev \
--cc=linux-hyperv@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-nvme@lists.infradead.org \
--cc=linux-scsi@vger.kernel.org \
--cc=m.szyprowski@samsung.com \
--cc=martin.petersen@oracle.com \
--cc=mhklinux@outlook.com \
--cc=petr@tesarici.cz \
--cc=robin.murphy@arm.com \
--cc=sagi@grimberg.me \
--cc=wei.liu@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.