Re: [PATCH] RDMA/rxe: Fix data copy for IB_SEND_INLINE

[Zhu Yanjun <zyjzyj2000@gmail.com>]

On 16.05.24 11:50, Honggang LI wrote:
> For RDMA Send and Write with IB_SEND_INLINE, the memory buffers
> specified in sge list will be placed inline in the Send Request.
> 
> The data should be copied by CPU from the virtual addresses of
> corresponding sge list DMA addresses.
> 
> Fixes: 8d7c7c0eeb74 ("RDMA: Add ib_virt_dma_to_page()")
> Signed-off-by: Honggang LI <honggangli@163.com>

Thanks a lot.
Reviewed-by: Zhu Yanjun <yanjun.zhu@linux.dev>

Zhu Yanjun

> ---
>   drivers/infiniband/sw/rxe/rxe_verbs.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/infiniband/sw/rxe/rxe_verbs.c b/drivers/infiniband/sw/rxe/rxe_verbs.c
> index 614581989b38..b94d05e9167a 100644
> --- a/drivers/infiniband/sw/rxe/rxe_verbs.c
> +++ b/drivers/infiniband/sw/rxe/rxe_verbs.c
> @@ -812,7 +812,7 @@ static void copy_inline_data_to_wqe(struct rxe_send_wqe *wqe,
>   	int i;
>   
>   	for (i = 0; i < ibwr->num_sge; i++, sge++) {
> -		memcpy(p, ib_virt_dma_to_page(sge->addr), sge->length);
> +		memcpy(p, ib_virt_dma_to_ptr(sge->addr), sge->length);
>   		p += sge->length;
>   	}
>   }