From: Alistair Popple <apopple@nvidia.com>
To: Jason Gunthorpe <jgg@ziepe.ca>
Cc: "Thomas Hellström" <thomas.hellstrom@linux.intel.com>,
"Leon Romanovsky" <leon@kernel.org>,
"Christian König" <christian.koenig@amd.com>,
"Bjorn Helgaas" <bhelgaas@google.com>,
"Logan Gunthorpe" <logang@deltatee.com>,
"Joerg Roedel (AMD)" <joro@8bytes.org>,
"Will Deacon" <will@kernel.org>,
"Robin Murphy" <robin.murphy@arm.com>,
linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-doc@vger.kernel.org, iommu@lists.linux.dev,
"Tushar Dave" <tdave@nvidia.com>,
linux-media@vger.kernel.org, dri-devel@lists.freedesktop.org,
linaro-mm-sig@lists.linaro.org, linux-rdma@vger.kernel.org,
kvm@vger.kernel.org, "Chaitanya Kulkarni" <kch@nvidia.com>,
"Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
"Jens Axboe" <axboe@kernel.dk>,
"Alex Williamson" <alex@shazbot.org>,
"Ankit Agrawal" <ankita@nvidia.com>,
"Jonathan Corbet" <corbet@lwn.net>,
"Shuah Khan" <skhan@linuxfoundation.org>,
"Randy Dunlap" <rdunlap@infradead.org>,
"Sumit Semwal" <sumit.semwal@linaro.org>
Subject: Re: [PATCH v8 16/23] dma-buf: Let importers ask how peer-to-peer traffic is routed
Date: Fri, 2 Oct 2026 18:19:08 +1000 [thread overview]
Message-ID: <ar9oLsphjPs8NwCj@nvdebian.thelocal> (raw)
In-Reply-To: <20260930165236.GS163130@ziepe.ca>
On 2026-10-01 at 02:52 +1000, Jason Gunthorpe <jgg@ziepe.ca> wrote...
> On Wed, Sep 30, 2026 at 04:57:04PM +0200, Thomas Hellström wrote:
>
> > Returning again to Jason's series. Let's say we'd add just the mapping
> > type infrastructure, converted users of pcie_p2pdma only to use that
> > and then we'd have access to per-mapping-type data. This could actually
> > be done as a prereq for this series and merged separately. It's a
> > couple of patches only.
>
> I'm happy to say I found someone here to pick it up again, so we
> should see something on it after LPC!
Yes, I will be picking Jason's series up once I return from LPC. Hopefully I
might see some of you there!
- Alistair
> Jason
next prev parent reply other threads:[~2026-10-02 8:19 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-28 11:19 [PATCH v8 00/23] PCI/P2PDMA: Route peer-to-peer DMA by TLP class Leon Romanovsky
2026-09-28 11:19 ` [PATCH v8 01/23] PCI/P2PDMA: Document the TLP attribute assumptions Leon Romanovsky
2026-09-28 11:19 ` [PATCH v8 02/23] PCI/P2PDMA: Derive routing from directional ACS controls Leon Romanovsky
2026-09-28 11:19 ` [PATCH v8 03/23] PCI: Reject unreadable ACS controls in isolation checks Leon Romanovsky
2026-09-28 11:19 ` [PATCH v8 04/23] PCI/P2PDMA: Evaluate ACS controls at the path divergence Leon Romanovsky
2026-09-28 11:19 ` [PATCH v8 05/23] PCI/P2PDMA: Document directional ACS routing Leon Romanovsky
2026-09-28 11:19 ` [PATCH v8 06/23] PCI/P2PDMA: Collect the path's ACS controls before deciding Leon Romanovsky
2026-09-28 11:19 ` [PATCH v8 07/23] PCI/P2PDMA: Answer routing per TLP class Leon Romanovsky
2026-09-28 11:19 ` [PATCH v8 08/23] PCI/P2PDMA: Route Relaxed Ordering Completions directly Leon Romanovsky
2026-09-28 11:19 ` [PATCH v8 09/23] PCI/P2PDMA: Reject Translated Requests blocked by Translation Blocking Leon Romanovsky
2026-09-28 11:19 ` [PATCH v8 10/23] PCI/P2PDMA: Route Translated Requests under Direct Translated P2P Leon Romanovsky
2026-09-28 11:19 ` [PATCH v8 11/23] PCI/P2PDMA: Log detailed ACS routing diagnostics Leon Romanovsky
2026-09-28 11:19 ` [PATCH v8 12/23] PCI/P2PDMA: Add KUnit tests for the ACS routing decisions Leon Romanovsky
2026-09-28 11:19 ` [PATCH v8 13/23] PCI/P2PDMA: Test the ACS P2P routing walk Leon Romanovsky
2026-09-28 11:19 ` [PATCH v8 14/23] PCI: Add KUnit coverage for ACS isolation checks Leon Romanovsky
2026-09-28 11:19 ` [PATCH v8 15/23] PCI/P2PDMA: Document TLP-class routing Leon Romanovsky
2026-09-28 11:19 ` [PATCH v8 16/23] dma-buf: Let importers ask how peer-to-peer traffic is routed Leon Romanovsky
2026-09-29 9:34 ` Christian König
2026-09-29 13:23 ` Leon Romanovsky
2026-09-29 13:39 ` Christian König
2026-09-29 17:57 ` Leon Romanovsky
2026-09-30 7:00 ` Christian König
2026-09-30 8:18 ` Leon Romanovsky
2026-09-30 8:34 ` Christian König
2026-09-30 11:43 ` Leon Romanovsky
2026-09-30 11:52 ` Christian König
2026-09-30 14:32 ` Leon Romanovsky
2026-09-30 14:52 ` Christian König
2026-10-01 6:17 ` Leon Romanovsky
2026-10-01 7:06 ` Christian König
2026-09-30 14:57 ` Thomas Hellström
2026-09-30 15:03 ` Christian König
2026-09-30 16:52 ` Jason Gunthorpe
2026-10-02 8:19 ` Alistair Popple [this message]
2026-10-01 6:37 ` Leon Romanovsky
2026-10-01 7:49 ` Christian König
2026-10-01 8:27 ` Leon Romanovsky
2026-10-01 9:07 ` Christian König
2026-10-01 8:11 ` Thomas Hellström
2026-09-28 11:19 ` [PATCH v8 17/23] vfio/pci: Hand out the P2PDMA provider behind a dma-buf Leon Romanovsky
2026-09-28 11:19 ` [PATCH v8 18/23] RDMA/uverbs: " Leon Romanovsky
2026-09-28 11:19 ` [PATCH v8 19/23] RDMA/mlx5: Ask P2PDMA whether ATS takes a direct peer-to-peer route Leon Romanovsky
2026-09-28 11:19 ` [PATCH v8 20/23] PCI/P2PDMA: Let a client declare that it selects ATS per mapping Leon Romanovsky
2026-09-28 12:44 ` Thomas Hellström
2026-09-28 11:19 ` [PATCH v8 21/23] RDMA/mlx5: Declare to P2PDMA that ATS is selected per memory key Leon Romanovsky
2026-09-28 11:19 ` [PATCH v8 22/23] PCI/P2PDMA: Evaluate the ATS path for clients with ATS enabled Leon Romanovsky
2026-09-28 12:43 ` Thomas Hellström
2026-09-28 11:19 ` [PATCH v8 23/23] PCI/P2PDMA: Test the routing of " Leon Romanovsky
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