Re: [RFC v1 for accelerated IPoIB 25/25] mlx5_ib: skeleton for mlx5_ib to support ipoib_ops

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On Tue, Mar 14, 2017 at 6:10 PM, Jason Gunthorpe
<jgunthorpe@xxxxxxxxxxxxxxxxxxxx> wrote:
> On Tue, Mar 14, 2017 at 04:53:24PM +0200, Erez Shitrit wrote:
>
>> > Why isn't this stuff in open/close?
>>
>> According to ipoib control flows, there is a different between
>> open/close to init/cleanup for example, in open/close the driver
>> doesn't destroy hw resources, just change the state, it destroys
>> them in cleanup.
>
> So put it in mlx5_alloc_rdma_netdev then?
>
> Or ndo.init as was suggested?
>
> Or in the void (*setup)(struct net_device *)
>
>> >> +     param.size_base_priv = sizeof(struct ipoib_rdma_netdev);
>> >
>> > This is really weird, the code in mlx5i_create_netdev calls
>> > ipoib_dev_priv so it must assume the struct is a ipoib_rdma_netdev.
>>
>> It is the same attitude as in the vnic/hfi
>> (https://patchwork.kernel.org/patch/9587815/)
>
> Not quite, they call alloc_netdev_mqs directly, here indirects through
> mlx5i_create_netdev which assumes a priv layout, Just drop
> param.size_base_priv and put that same calculation in
> mlx5i_create_netdev..

Agree, will fix that. thanks.

>
> Jason
>
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