Re: [PATCH 3/3] IB: remove xrc_remote_srq_num from struct ib_send_wr

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On Wed, Aug 19, 2015 at 06:37:34PM +0200, Christoph Hellwig wrote:
> The field is only initialized in mlx, but never used.
> 
> If we want to add proper XRC support it should be done with a new
> struct ib_xrc_wr.
> 
> This shrinks the various WR structures by another 4 bytes.

Reviewed-by: Jason Gunthorpe <jgunthorpe@xxxxxxxxxxxxxxxxxxxx>

I've never really been entirely clear on how much of this stuff needs
to be kernel side. Even the switch doesn't really make alot of sense..

> +++ b/drivers/infiniband/hw/mlx5/qp.c
> @@ -2634,7 +2634,6 @@ int mlx5_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
>  		switch (ibqp->qp_type) {
>  		case IB_QPT_XRC_INI:
>  			xrc = seg;
> -			xrc->xrc_srqn = htonl(wr->xrc_remote_srq_num);


Jason
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