From: Martin Oliveira <martin.oliveira@eideticom.com>
To: Zhu Yanjun <zyjzyj2000@gmail.com>,
linux-rdma@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-pci@vger.kernel.org, linux-mm@kvack.org
Cc: Jason Gunthorpe <jgg@ziepe.ca>, Leon Romanovsky <leon@kernel.org>,
Bjorn Helgaas <bhelgaas@google.com>,
Logan Gunthorpe <logang@deltatee.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Tejun Heo <tj@kernel.org>,
"Rafael J. Wysocki" <rafael@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Mike Marciniszyn <mike.marciniszyn@intel.com>,
Michael Guralnik <michaelgur@nvidia.com>,
Dan Williams <dan.j.williams@intel.com>,
Ard Biesheuvel <ardb@kernel.org>,
Valentine Sinitsyn <valesini@yandex-team.ru>,
Lukas Wunner <lukas@wunner.de>
Subject: Re: [PATCH 0/6] Enable P2PDMA in Userspace RDMA
Date: Thu, 6 Jun 2024 15:32:22 -0600 [thread overview]
Message-ID: <0efcd0a4-569b-44d0-932f-5f81cf07b916@eideticom.com> (raw)
In-Reply-To: <285e6cdb-f765-4969-ab16-abc53ad66a95@linux.dev>
On 2024-06-06 02:53, Zhu Yanjun wrote:
> On 05.06.24 21:29, Martin Oliveira wrote:
>> This patch series enables P2PDMA memory to be used in userspace RDMA
>> transfers. With this series, P2PDMA memory mmaped into userspace (ie.
>> only NVMe CMBs, at the moment) can then be used with ibv_reg_mr() (or
>> similar) interfaces. This can be tested by passing a sysfs p2pmem
>> allocator to the --mmap flag of the perftest tools.
>
> Do you mean the following --mmap flag?
> "
> --mmap=file Use an mmap'd file as the buffer for testing P2P transfers.
> "
Yes
> I am interested in this. Can you provide the full steps to make tests
> with this patch series
First start the server with:
ib_read_bw
Then run a client with something like this:
ib_read_bw --mmap /sys/bus/pci/devices/0000\:c5\:00.0/p2pmem/allocate <host>
Martin
prev parent reply other threads:[~2024-06-06 21:32 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-06-05 19:29 Martin Oliveira
2024-06-05 19:29 ` [PATCH 1/6] kernfs: create vm_operations_struct without page_mkwrite() Martin Oliveira
2024-06-05 21:43 ` Bjorn Helgaas
2024-06-06 20:54 ` Greg Kroah-Hartman
2024-06-06 21:32 ` Logan Gunthorpe
2024-06-07 5:03 ` Christoph Hellwig
2024-06-07 16:16 ` Logan Gunthorpe
2024-06-07 19:18 ` Greg Kroah-Hartman
2024-06-05 19:29 ` [PATCH 2/6] sysfs: add mmap_allocates parameter to struct bin_attribute Martin Oliveira
2024-06-05 19:29 ` [PATCH 3/6] PCI/P2PDMA: create VMA without page_mkwrite() operator Martin Oliveira
2024-06-05 21:45 ` Bjorn Helgaas
2024-06-05 19:29 ` [PATCH 4/6] mm/gup: handle ZONE_DEVICE pages in folio_fast_pin_allowed() Martin Oliveira
2024-06-05 19:29 ` [PATCH 5/6] mm/gup: allow FOLL_LONGTERM & FOLL_PCI_P2PDMA Martin Oliveira
2024-06-05 19:29 ` [PATCH 6/6] RDMA/umem: add support for P2P RDMA Martin Oliveira
2024-06-10 12:11 ` Jason Gunthorpe
2024-06-06 8:53 ` [PATCH 0/6] Enable P2PDMA in Userspace RDMA Zhu Yanjun
2024-06-06 21:32 ` Martin Oliveira [this message]
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