[PATCH v3 1/3] net/virtio_user: convert cq descriptor IOVA address to Virtual address

[Maxime Coquelin]

On 7/3/24 12:03, Srujana Challa wrote:
> This patch modifies the code to convert descriptor buffer IOVA
> addresses to virtual addresses during the processing of shadow
> control queue when IOVA mode is PA. This change enables Virtio-user
> to operate with IOVA as the descriptor buffer address.
> 
> Signed-off-by: Srujana Challa <schalla at marvell.com>
> ---
>   .../net/virtio/virtio_user/virtio_user_dev.c  | 33 ++++++++++++-------
>   1 file changed, 21 insertions(+), 12 deletions(-)
> 
> diff --git a/drivers/net/virtio/virtio_user/virtio_user_dev.c b/drivers/net/virtio/virtio_user/virtio_user_dev.c
> index 1365c8a5c8..7f35f4b06b 100644
> --- a/drivers/net/virtio/virtio_user/virtio_user_dev.c
> +++ b/drivers/net/virtio/virtio_user/virtio_user_dev.c
> @@ -896,6 +896,15 @@ virtio_user_handle_mq(struct virtio_user_dev *dev, uint16_t q_pairs)
>   
>   #define CVQ_MAX_DATA_DESCS 32
>   
> +static inline void *
> +virtio_user_iova2virt(rte_iova_t iova)
> +{
> +	if (rte_eal_iova_mode() == RTE_IOVA_PA)
> +		return rte_mem_iova2virt(iova);
> +	else
> +		return (void *)(uintptr_t)iova;
> +}
> +


Thanks for the last minute change.

With Jerin suggestion:
Reviewed-by: Maxime Coquelin <maxime.coquelin at redhat.com>

Maxime