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From: Steve Wise <swise@opengridcomputing.com>
To: Sagi Grimberg <sagi@grimberg.me>,
	linux-rdma@vger.kernel.org, linux-nvme@lists.infradead.org,
	linux-block@vger.kernel.org
Cc: netdev@vger.kernel.org, Saeed Mahameed <saeedm@mellanox.com>,
	Or Gerlitz <ogerlitz@mellanox.com>,
	Christoph Hellwig <hch@lst.de>
Subject: Re: [PATCH rfc 0/6] Automatic affinity settings for nvme over rdma
Date: Mon, 10 Apr 2017 13:05:50 -0500	[thread overview]
Message-ID: <14fd128d-7155-ab13-492f-952f072808d5@opengridcomputing.com> (raw)
In-Reply-To: <1491140492-25703-1-git-send-email-sagi@grimberg.me>

On 4/2/2017 8:41 AM, Sagi Grimberg wrote:
> This patch set is aiming to automatically find the optimal
> queue <-> irq multi-queue assignments in storage ULPs (demonstrated
> on nvme-rdma) based on the underlying rdma device irq affinity
> settings.
>
> First two patches modify mlx5 core driver to use generic API
> to allocate array of irq vectors with automatic affinity
> settings instead of open-coding exactly what it does (and
> slightly worse).
>
> Then, in order to obtain an affinity map for a given completion
> vector, we expose a new RDMA core API, and implement it in mlx5.
>
> The third part is addition of a rdma-based queue mapping helper
> to blk-mq that maps the tagset hctx's according to the device
> affinity mappings.
>
> I'd happily convert some more drivers, but I'll need volunteers
> to test as I don't have access to any other devices.

I'll test cxgb4 if you convert it. :)

WARNING: multiple messages have this Message-ID (diff)
From: swise@opengridcomputing.com (Steve Wise)
Subject: [PATCH rfc 0/6] Automatic affinity settings for nvme over rdma
Date: Mon, 10 Apr 2017 13:05:50 -0500	[thread overview]
Message-ID: <14fd128d-7155-ab13-492f-952f072808d5@opengridcomputing.com> (raw)
In-Reply-To: <1491140492-25703-1-git-send-email-sagi@grimberg.me>

On 4/2/2017 8:41 AM, Sagi Grimberg wrote:
> This patch set is aiming to automatically find the optimal
> queue <-> irq multi-queue assignments in storage ULPs (demonstrated
> on nvme-rdma) based on the underlying rdma device irq affinity
> settings.
>
> First two patches modify mlx5 core driver to use generic API
> to allocate array of irq vectors with automatic affinity
> settings instead of open-coding exactly what it does (and
> slightly worse).
>
> Then, in order to obtain an affinity map for a given completion
> vector, we expose a new RDMA core API, and implement it in mlx5.
>
> The third part is addition of a rdma-based queue mapping helper
> to blk-mq that maps the tagset hctx's according to the device
> affinity mappings.
>
> I'd happily convert some more drivers, but I'll need volunteers
> to test as I don't have access to any other devices.

I'll test cxgb4 if you convert it. :)

  parent reply	other threads:[~2017-04-10 18:05 UTC|newest]

Thread overview: 52+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-04-02 13:41 [PATCH rfc 0/6] Automatic affinity settings for nvme over rdma Sagi Grimberg
2017-04-02 13:41 ` Sagi Grimberg
2017-04-02 13:41 ` [PATCH rfc 1/6] mlx5: convert to generic pci_alloc_irq_vectors Sagi Grimberg
2017-04-02 13:41   ` Sagi Grimberg
2017-04-04  6:27   ` Christoph Hellwig
2017-04-04  6:27     ` Christoph Hellwig
2017-04-02 13:41 ` [PATCH rfc 2/6] mlx5: move affinity hints assignments to generic code Sagi Grimberg
2017-04-02 13:41   ` Sagi Grimberg
2017-04-04  6:32   ` Christoph Hellwig
2017-04-04  6:32     ` Christoph Hellwig
2017-04-06  8:29     ` Sagi Grimberg
2017-04-06  8:29       ` Sagi Grimberg
2017-04-02 13:41 ` [PATCH rfc 3/6] RDMA/core: expose affinity mappings per completion vector Sagi Grimberg
2017-04-02 13:41   ` Sagi Grimberg
2017-04-04  6:32   ` Christoph Hellwig
2017-04-04  6:32     ` Christoph Hellwig
2017-04-02 13:41 ` [PATCH rfc 4/6] mlx5: support ->get_vector_affinity Sagi Grimberg
2017-04-02 13:41   ` Sagi Grimberg
2017-04-04  6:33   ` Christoph Hellwig
2017-04-04  6:33     ` Christoph Hellwig
2017-04-02 13:41 ` [PATCH rfc 5/6] block: Add rdma affinity based queue mapping helper Sagi Grimberg
2017-04-02 13:41   ` Sagi Grimberg
2017-04-04  6:33   ` Christoph Hellwig
2017-04-04  6:33     ` Christoph Hellwig
2017-04-04  7:46   ` Max Gurtovoy
2017-04-04  7:46     ` Max Gurtovoy
2017-04-04  7:46     ` Max Gurtovoy
2017-04-04  7:46     ` Max Gurtovoy
2017-04-04 13:09     ` Christoph Hellwig
2017-04-04 13:09       ` Christoph Hellwig
2017-04-06  9:23     ` Sagi Grimberg
2017-04-06  9:23       ` Sagi Grimberg
2017-04-06  9:23       ` Sagi Grimberg
2017-04-05 14:17   ` Jens Axboe
2017-04-05 14:17     ` Jens Axboe
2017-04-02 13:41 ` [PATCH rfc 6/6] nvme-rdma: use intelligent affinity based queue mappings Sagi Grimberg
2017-04-02 13:41   ` Sagi Grimberg
2017-04-04  6:34   ` Christoph Hellwig
2017-04-04  6:34     ` Christoph Hellwig
2017-04-06  8:30     ` Sagi Grimberg
2017-04-06  8:30       ` Sagi Grimberg
2017-04-04  7:51 ` [PATCH rfc 0/6] Automatic affinity settings for nvme over rdma Max Gurtovoy
2017-04-04  7:51   ` Max Gurtovoy
2017-04-04  7:51   ` Max Gurtovoy
2017-04-04  7:51   ` Max Gurtovoy
2017-04-06  8:34   ` Sagi Grimberg
2017-04-06  8:34     ` Sagi Grimberg
2017-04-06  8:34     ` Sagi Grimberg
2017-04-10 18:05 ` Steve Wise [this message]
2017-04-10 18:05   ` Steve Wise
2017-04-12  6:34   ` Christoph Hellwig
2017-04-12  6:34     ` Christoph Hellwig

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