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Date: Mon, 26 Dec 2016 14:41:14 +0800
From: Yuanhan Liu <yuanhan.liu@linux.intel.com>
To: Jianfeng Tan <jianfeng.tan@intel.com>
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Subject: Re: [dpdk-dev] [PATCH v2 4/7] net/virtio_user: abstract virtio user
	backend ops
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On Fri, Dec 23, 2016 at 07:14:23AM +0000, Jianfeng Tan wrote:
> +typedef int (*vhost_setup_t)(struct virtio_user_dev *dev);
> +typedef int (*vhost_send_request_t)(struct virtio_user_dev *dev,
> +				    enum vhost_user_request req,
> +				    void *arg);
> +typedef int (*vhost_enable_qp_t)(struct virtio_user_dev *dev,
> +				 uint16_t pair_idx,
> +				 int enable);

I will not bother to define new types if they are just gonna be used once.
No strong perference here, just a suggestion.

...
> diff --git a/drivers/net/virtio/virtio_user/virtio_user_dev.h b/drivers/net/virtio/virtio_user/virtio_user_dev.h
> index 28fc788..503a496 100644
> --- a/drivers/net/virtio/virtio_user/virtio_user_dev.h
> +++ b/drivers/net/virtio/virtio_user/virtio_user_dev.h
> @@ -37,9 +37,15 @@
>  #include <limits.h>
>  #include "../virtio_pci.h"
>  #include "../virtio_ring.h"
> +#include "vhost.h"
>  
>  struct virtio_user_dev {
> +	/* for vhost_user backend */
>  	int		vhostfd;
> +
> +	/* for vhost_kernel backend */
> +
> +	/* for both vhost_user and vhost_kernel */

By far (till this patch), vhost_kernel is not introduced at all, that I
will not mention it here. That said, I will leave this change to the patch
that actually enables vhost-kernel.

	--yliu