From: Jason Gunthorpe <jgunthorpe-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
To: Sagi Grimberg <sagig-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
Cc: Chuck Lever <chuck.lever-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>,
linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Or Gerlitz <ogerlitz-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>,
Eli Cohen <eli-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
Subject: Re: [PATCH] mlx5: Fix missing device local_dma_lkey
Date: Mon, 20 Jul 2015 13:52:08 -0600 [thread overview]
Message-ID: <20150720195208.GB24162@obsidianresearch.com> (raw)
In-Reply-To: <55AD2B65.4090006-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
On Mon, Jul 20, 2015 at 08:09:57PM +0300, Sagi Grimberg wrote:
> On 7/20/2015 8:08 PM, Chuck Lever wrote:
> >
> >On Jul 20, 2015, at 12:54 PM, Sagi Grimberg <sagig-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org> wrote:
> >
> >>The mlx5 driver exposes device capability IB_DEVICE_LOCAL_DMA_LKEY
> >>but does not set the the device local_dma_lkey. This breaks
> >>rpcrdma drivers.
> >>
> >>Query and set this lkey when creating the device resources.
> >
> >Wow. This suggests no-one has been testing NFS/RDMA with mlx5? I
> >know I’m not (yet). Anyway, this makes sense.
>
> That's what I was wandering about.
>
> I just turned it on and it blew up... gracefully though :)
Ugh, good thing you caught this before I sent my cleanup:
https://github.com/jgunthorpe/linux/tree/remove-ib_get_dma_mr
Jason
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next prev parent reply other threads:[~2015-07-20 19:52 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-20 16:54 [PATCH] mlx5: Fix missing device local_dma_lkey Sagi Grimberg
[not found] ` <1437411276-22731-1-git-send-email-sagig-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2015-07-20 17:08 ` Chuck Lever
[not found] ` <3095C235-676F-4A99-A27C-F2F332D9921F-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
2015-07-20 17:09 ` Sagi Grimberg
[not found] ` <55AD2B65.4090006-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2015-07-20 19:52 ` Jason Gunthorpe [this message]
2015-07-28 15:09 ` Doug Ledford
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