netdev - Re: [PATCH 1/2] tools/virtio: Add dma sync api for virtio test

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Date: Sun, 8 Oct 2023 12:37:00 +0800
From: Jason Wang <jasowang@...hat.com>
To: liming.wu@...uarmicro.com
Cc: "Michael S . Tsirkin" <mst@...hat.com>, kvm@...r.kernel.org, 
	virtualization@...ts.linux-foundation.org, netdev@...r.kernel.org, 
	linux-kernel@...r.kernel.org, 398776277@...com
Subject: Re: [PATCH 1/2] tools/virtio: Add dma sync api for virtio test

On Tue, Sep 26, 2023 at 1:00 PM <liming.wu@...uarmicro.com> wrote:
>
> From: Liming Wu <liming.wu@...uarmicro.com>
>
> Fixes: 8bd2f71054bd ("virtio_ring: introduce dma sync api for virtqueue")
> also add dma sync api for virtio test.
>
> Signed-off-by: Liming Wu <liming.wu@...uarmicro.com>

Acked-by: Jason Wang <jasowang@...hat.com>

Thanks

> ---
>  tools/virtio/linux/dma-mapping.h | 12 ++++++++++++
>  1 file changed, 12 insertions(+)
>
> diff --git a/tools/virtio/linux/dma-mapping.h b/tools/virtio/linux/dma-mapping.h
> index 834a90bd3270..822ecaa8e4df 100644
> --- a/tools/virtio/linux/dma-mapping.h
> +++ b/tools/virtio/linux/dma-mapping.h
> @@ -24,11 +24,23 @@ enum dma_data_direction {
>  #define dma_map_page(d, p, o, s, dir) (page_to_phys(p) + (o))
>
>  #define dma_map_single(d, p, s, dir) (virt_to_phys(p))
> +#define dma_map_single_attrs(d, p, s, dir, a) (virt_to_phys(p))
>  #define dma_mapping_error(...) (0)
>
>  #define dma_unmap_single(d, a, s, r) do { (void)(d); (void)(a); (void)(s); (void)(r); } while (0)
>  #define dma_unmap_page(d, a, s, r) do { (void)(d); (void)(a); (void)(s); (void)(r); } while (0)
>
> +#define sg_dma_address(sg) (0)
> +#define dma_need_sync(v, a) (0)
> +#define dma_unmap_single_attrs(d, a, s, r, t) do { \
> +       (void)(d); (void)(a); (void)(s); (void)(r); (void)(t); \
> +} while (0)
> +#define dma_sync_single_range_for_cpu(d, a, o, s, r) do { \
> +       (void)(d); (void)(a); (void)(o); (void)(s); (void)(r); \
> +} while (0)
> +#define dma_sync_single_range_for_device(d, a, o, s, r) do { \
> +       (void)(d); (void)(a); (void)(o); (void)(s); (void)(r); \
> +} while (0)
>  #define dma_max_mapping_size(...) SIZE_MAX
>
>  #endif
> --
> 2.34.1
>