Re: [PATCH 1/1] Update kernel headers

[Jason Gunthorpe <jgg@nvidia.com>]

On Tue, May 25, 2021 at 06:32:22PM -0400, Zhu Yanjun wrote:
> From: Zhu Yanjun <zyjzyj2000@gmail.com>
> 
> After the patches "RDMA/rxe: Implement memory windows", the kernel headers
> are changed. This causes about 17 errors and 1 failure when running
> "run_test.py" with rxe.
> This commit will fix these errors and failures.
> 
> Signed-off-by: Zhu Yanjun <zyjzyj2000@gmail.com>
> ---
>  kernel-headers/rdma/rdma_user_rxe.h | 11 +++++++++++
>  1 file changed, 11 insertions(+)

Huh? Bob? You can't break the rxe uapi??
 
> diff --git a/kernel-headers/rdma/rdma_user_rxe.h b/kernel-headers/rdma/rdma_user_rxe.h
> index 068433e2..90ea477f 100644
> --- a/kernel-headers/rdma/rdma_user_rxe.h
> +++ b/kernel-headers/rdma/rdma_user_rxe.h
> @@ -99,7 +99,17 @@ struct rxe_send_wr {
>  			__u32	remote_qkey;
>  			__u16	pkey_index;
>  		} ud;
> +		struct {
> +			__aligned_u64	addr;

> +			__aligned_u64	length;

> +			__u32		mr_lkey;
> +			__u32		mw_rkey;

> +			__u32		rkey;
> +			__u32		access;

> +			__u32		flags;
> +		} mw;

There is room for 4 u64's in 'reg' and this has 5, so it is a no-go

Jason