Re: [PATCH net-next] hv_netvsc: Add feature flags NETIF_F_IPV6_CSUM and NETIF_F_TSO6 for netvsc

From: Tom Herbert
Date: Wed Feb 03 2016 - 15:02:17 EST


On Wed, Feb 3, 2016 at 1:30 PM, Simon Xiao <sixiao@xxxxxxxxxxxxx> wrote:
> 1. Adding NETIF_F_IPV6_CSUM and NETIF_F_TSO6 feature flags which are
> supported by Hyper-V platform.

NETIF_F_IPV6_CSUM and NETIF_F_IP_CSUM are being deprecated. Please
change to use NETIF_F_HW_CSUM (calling helper functions if need).

Thanks,
Tom

> 2. Cleanup the coding style of flag assignment by using macro.
>
> Signed-off-by: Simon Xiao <sixiao@xxxxxxxxxxxxx>
> Reviewed-by: K. Y. Srinivasan <kys@xxxxxxxxxxxxx>
> Reviewed-by: Haiyang Zhang <haiyangz@xxxxxxxxxxxxx>
> ---
> drivers/net/hyperv/netvsc_drv.c | 12 ++++++++----
> 1 file changed, 8 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c
> index 1d3a665..0cde741 100644
> --- a/drivers/net/hyperv/netvsc_drv.c
> +++ b/drivers/net/hyperv/netvsc_drv.c
> @@ -43,6 +43,12 @@
>
> #define RING_SIZE_MIN 64
> #define LINKCHANGE_INT (2 * HZ)
> +#define NETVSC_HW_FEATURES (NETIF_F_RXCSUM | \
> + NETIF_F_SG | \
> + NETIF_F_TSO | \
> + NETIF_F_TSO6 | \
> + NETIF_F_IP_CSUM | \
> + NETIF_F_IPV6_CSUM)
> static int ring_size = 128;
> module_param(ring_size, int, S_IRUGO);
> MODULE_PARM_DESC(ring_size, "Ring buffer size (# of pages)");
> @@ -1081,10 +1087,8 @@ static int netvsc_probe(struct hv_device *dev,
>
> net->netdev_ops = &device_ops;
>
> - net->hw_features = NETIF_F_RXCSUM | NETIF_F_SG | NETIF_F_IP_CSUM |
> - NETIF_F_TSO;
> - net->features = NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_SG | NETIF_F_RXCSUM |
> - NETIF_F_IP_CSUM | NETIF_F_TSO;
> + net->hw_features = NETVSC_HW_FEATURES;
> + net->features = NETVSC_HW_FEATURES | NETIF_F_HW_VLAN_CTAG_TX;
>
> net->ethtool_ops = &ethtool_ops;
> SET_NETDEV_DEV(net, &dev->device);
> --
> 2.5.0
>