[dpdk-stable] [PATCH 05/15] net/virtio: save notify bar ID in virtio HW struct

[Tiwei Bie]

On Thu, Aug 29, 2019 at 09:59:50AM +0200, Maxime Coquelin wrote:
> SAving the notify bar ID in the virtio HW struct will be

s/SAving/Saving/

> used by the virtio-vdpa driver in its .get_notify_area()
> callback.
> 
> Signed-off-by: Maxime Coquelin <maxime.coquelin at redhat.com>
> ---
>  drivers/net/virtio/virtio_pci.c | 6 ++++--
>  drivers/net/virtio/virtio_pci.h | 1 +
>  2 files changed, 5 insertions(+), 2 deletions(-)

Reviewed-by: Tiwei Bie <tiwei.bie at intel.com>

> 
> diff --git a/drivers/net/virtio/virtio_pci.c b/drivers/net/virtio/virtio_pci.c
> index 4468e89cb..762847d70 100644
> --- a/drivers/net/virtio/virtio_pci.c
> +++ b/drivers/net/virtio/virtio_pci.c
> @@ -617,12 +617,14 @@ virtio_read_caps(struct rte_pci_device *dev, struct virtio_hw *hw)
>  			ret = rte_pci_read_config(dev,
>  					&hw->notify_off_multiplier,
>  					4, pos + sizeof(cap));
> -			if (ret != 4)
> +			if (ret != 4) {
>  				PMD_INIT_LOG(DEBUG,
>  					"failed to read notify_off_multiplier, ret %d",
>  					ret);
> -			else
> +			} else {
>  				hw->notify_base = get_cfg_addr(dev, &cap);
> +				hw->notify_region = cap.bar;
> +			}
>  			break;
>  		case VIRTIO_PCI_CAP_DEVICE_CFG:
>  			hw->dev_cfg = get_cfg_addr(dev, &cap);
> diff --git a/drivers/net/virtio/virtio_pci.h b/drivers/net/virtio/virtio_pci.h
> index 56f89a454..afdcc906f 100644
> --- a/drivers/net/virtio/virtio_pci.h
> +++ b/drivers/net/virtio/virtio_pci.h
> @@ -256,6 +256,7 @@ struct virtio_hw {
>  	uint32_t    notify_off_multiplier;
>  	uint8_t     *isr;
>  	uint16_t    *notify_base;
> +	uint8_t     notify_region;
>  	struct virtio_pci_common_cfg *common_cfg;
>  	struct virtio_net_config *dev_cfg;
>  	void	    *virtio_user_dev;
> -- 
> 2.21.0
>