Re: [PATCH v6 7/7] virtio-net: add migration support for RSS and hash report

["Michael S. Tsirkin" <mst@redhat.com>]

Code looks OK but patchew testing shows failures. If they are false positives
pls reply to that mail.

On Thu, Mar 26, 2020 at 02:34:39PM +0200, Yuri Benditovich wrote:
> ping
> 
> On Fri, Mar 20, 2020 at 1:58 PM Yuri Benditovich <yuri.benditovich@daynix.com>
> wrote:
> 
>     Save and restore RSS/hash report configuration.
> 
>     Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
>     ---
>      hw/net/virtio-net.c | 37 +++++++++++++++++++++++++++++++++++++
>      1 file changed, 37 insertions(+)
> 
>     diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c
>     index a0614ad4e6..7de7587abd 100644
>     --- a/hw/net/virtio-net.c
>     +++ b/hw/net/virtio-net.c
>     @@ -2842,6 +2842,13 @@ static int virtio_net_post_load_device(void *opaque,
>     int version_id)
>              }
>          }
> 
>     +    if (n->rss_data.enabled) {
>     +        trace_virtio_net_rss_enable(n->rss_data.hash_types,
>     +                                    n->rss_data.indirections_len,
>     +                                    sizeof(n->rss_data.key));
>     +    } else {
>     +        trace_virtio_net_rss_disable();
>     +    }
>          return 0;
>      }
> 
>     @@ -3019,6 +3026,32 @@ static const VMStateDescription
>     vmstate_virtio_net_has_vnet = {
>          },
>      };
> 
>     +static bool virtio_net_rss_needed(void *opaque)
>     +{
>     +    return VIRTIO_NET(opaque)->rss_data.enabled;
>     +}
>     +
>     +static const VMStateDescription vmstate_virtio_net_rss = {
>     +    .name      = "virtio-net-device/rss",
>     +    .version_id = 1,
>     +    .minimum_version_id = 1,
>     +    .needed = virtio_net_rss_needed,
>     +    .fields = (VMStateField[]) {
>     +        VMSTATE_BOOL(rss_data.enabled, VirtIONet),
>     +        VMSTATE_BOOL(rss_data.redirect, VirtIONet),
>     +        VMSTATE_BOOL(rss_data.populate_hash, VirtIONet),
>     +        VMSTATE_UINT32(rss_data.hash_types, VirtIONet),
>     +        VMSTATE_UINT16(rss_data.indirections_len, VirtIONet),
>     +        VMSTATE_UINT16(rss_data.default_queue, VirtIONet),
>     +        VMSTATE_UINT8_ARRAY(rss_data.key, VirtIONet,
>     +                            VIRTIO_NET_RSS_MAX_KEY_SIZE),
>     +        VMSTATE_VARRAY_UINT16_ALLOC(rss_data.indirections_table,
>     VirtIONet,
>     +                                    rss_data.indirections_len, 0,
>     +                                    vmstate_info_uint16, uint16_t),
>     +        VMSTATE_END_OF_LIST()
>     +    },
>     +};
>     +
>      static const VMStateDescription vmstate_virtio_net_device = {
>          .name = "virtio-net-device",
>          .version_id = VIRTIO_NET_VM_VERSION,
>     @@ -3069,6 +3102,10 @@ static const VMStateDescription
>     vmstate_virtio_net_device = {
>                                  has_ctrl_guest_offloads),
>              VMSTATE_END_OF_LIST()
>         },
>     +    .subsections = (const VMStateDescription * []) {
>     +        &vmstate_virtio_net_rss,
>     +        NULL
>     +    }
>      };
> 
>      static NetClientInfo net_virtio_info = {
>     --
>     2.17.1
> 
>