Re: [PATCH] mlx5: Fix missing device local_dma_lkey

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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@xxxxxxxxxxxx> 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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