1. Patchew
  2. QEMU
  3. [PATCH 0/4] Vhost-vdpa Shadow Virtqueue VLAN support
  4. View patch

[PATCH 3/4] vdpa: Restore vlan filtering state

Hawkins Jiawei posted 4 patches 2 years, 6 months ago
Maintainers: "Michael S. Tsirkin" <mst@redhat.com>, Jason Wang <jasowang@redhat.com>
There is a newer version of this series
[PATCH 3/4] vdpa: Restore vlan filtering state
Posted by Hawkins Jiawei 2 years, 6 months ago 
This patch introduces vhost_vdpa_net_load_single_vlan()
and vhost_vdpa_net_load_vlan() to restore the vlan
filtering state at device's startup.

Co-developed-by: Eugenio Pérez <eperezma@redhat.com>
Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Signed-off-by: Hawkins Jiawei <yin31149@gmail.com>
---
 net/vhost-vdpa.c | 49 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 49 insertions(+)

diff --git a/net/vhost-vdpa.c b/net/vhost-vdpa.c
index 9795306742..0787dd933b 100644
--- a/net/vhost-vdpa.c
+++ b/net/vhost-vdpa.c
@@ -965,6 +965,51 @@ static int vhost_vdpa_net_load_rx(VhostVDPAState *s,
     return 0;
 }
 
+static int vhost_vdpa_net_load_single_vlan(VhostVDPAState *s,
+                                           const VirtIONet *n,
+                                           uint16_t vid)
+{
+    const struct iovec data = {
+        .iov_base = &vid,
+        .iov_len = sizeof(vid),
+    };
+    ssize_t dev_written = vhost_vdpa_net_load_cmd(s, VIRTIO_NET_CTRL_VLAN,
+                                                  VIRTIO_NET_CTRL_VLAN_ADD,
+                                                  &data, 1);
+    if (unlikely(dev_written < 0)) {
+        return dev_written;
+    }
+    if (unlikely(*s->status != VIRTIO_NET_OK)) {
+        return -EIO;
+    }
+
+    return 0;
+}
+
+static int vhost_vdpa_net_load_vlan(VhostVDPAState *s,
+                                    const VirtIONet *n)
+{
+    int r;
+
+    if (!virtio_vdev_has_feature(&n->parent_obj, VIRTIO_NET_F_CTRL_VLAN)) {
+        return 0;
+    }
+
+    for (int i = 0; i < MAX_VLAN >> 5; i++) {
+        for (int j = 0; n->vlans[i] && j <= 0x1f; j++) {
+            if (n->vlans[i] & (1U << j)) {
+                r = vhost_vdpa_net_load_single_vlan(s, n, (i << 5) + j);
+                if (unlikely(r != 0)) {
+                    return r;
+                }
+            }
+        }
+    }
+
+    return 0;
+}
+
+
 static int vhost_vdpa_net_load(NetClientState *nc)
 {
     VhostVDPAState *s = DO_UPCAST(VhostVDPAState, nc, nc);
@@ -995,6 +1040,10 @@ static int vhost_vdpa_net_load(NetClientState *nc)
     if (unlikely(r)) {
         return r;
     }
+    r = vhost_vdpa_net_load_vlan(s, n);
+    if (unlikely(r)) {
+        return r;
+    }
 
     return 0;
 }
-- 
2.25.1
Re: [PATCH 3/4] vdpa: Restore vlan filtering state
Posted by Eugenio Perez Martin 2 years, 6 months ago 
On Wed, Jul 19, 2023 at 9:48 AM Hawkins Jiawei <yin31149@gmail.com> wrote:
>
> This patch introduces vhost_vdpa_net_load_single_vlan()
> and vhost_vdpa_net_load_vlan() to restore the vlan
> filtering state at device's startup.
>
> Co-developed-by: Eugenio Pérez <eperezma@redhat.com>
> Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
> Signed-off-by: Hawkins Jiawei <yin31149@gmail.com>
> ---
>  net/vhost-vdpa.c | 49 ++++++++++++++++++++++++++++++++++++++++++++++++
>  1 file changed, 49 insertions(+)
>
> diff --git a/net/vhost-vdpa.c b/net/vhost-vdpa.c
> index 9795306742..0787dd933b 100644
> --- a/net/vhost-vdpa.c
> +++ b/net/vhost-vdpa.c
> @@ -965,6 +965,51 @@ static int vhost_vdpa_net_load_rx(VhostVDPAState *s,
>      return 0;
>  }
>
> +static int vhost_vdpa_net_load_single_vlan(VhostVDPAState *s,
> +                                           const VirtIONet *n,
> +                                           uint16_t vid)
> +{
> +    const struct iovec data = {
> +        .iov_base = &vid,
> +        .iov_len = sizeof(vid),
> +    };
> +    ssize_t dev_written = vhost_vdpa_net_load_cmd(s, VIRTIO_NET_CTRL_VLAN,
> +                                                  VIRTIO_NET_CTRL_VLAN_ADD,
> +                                                  &data, 1);
> +    if (unlikely(dev_written < 0)) {
> +        return dev_written;
> +    }
> +    if (unlikely(*s->status != VIRTIO_NET_OK)) {
> +        return -EIO;
> +    }
> +
> +    return 0;
> +}
> +
> +static int vhost_vdpa_net_load_vlan(VhostVDPAState *s,
> +                                    const VirtIONet *n)
> +{
> +    int r;
> +
> +    if (!virtio_vdev_has_feature(&n->parent_obj, VIRTIO_NET_F_CTRL_VLAN)) {
> +        return 0;
> +    }
> +
> +    for (int i = 0; i < MAX_VLAN >> 5; i++) {
> +        for (int j = 0; n->vlans[i] && j <= 0x1f; j++) {
> +            if (n->vlans[i] & (1U << j)) {
> +                r = vhost_vdpa_net_load_single_vlan(s, n, (i << 5) + j);
> +                if (unlikely(r != 0)) {
> +                    return r;
> +                }
> +            }
> +        }
> +    }
> +
> +    return 0;
> +}
> +
> +

Nit: I'm not sure if it was here originally, but there is an extra newline here.

>  static int vhost_vdpa_net_load(NetClientState *nc)
>  {
>      VhostVDPAState *s = DO_UPCAST(VhostVDPAState, nc, nc);
> @@ -995,6 +1040,10 @@ static int vhost_vdpa_net_load(NetClientState *nc)
>      if (unlikely(r)) {
>          return r;
>      }
> +    r = vhost_vdpa_net_load_vlan(s, n);
> +    if (unlikely(r)) {
> +        return r;
> +    }
>
>      return 0;
>  }
> --
> 2.25.1
>
Re: [PATCH 3/4] vdpa: Restore vlan filtering state
Posted by Hawkins Jiawei 2 years, 6 months ago 
On 2023/7/21 19:57, Eugenio Perez Martin wrote:
> On Wed, Jul 19, 2023 at 9:48 AM Hawkins Jiawei <yin31149@gmail.com> wrote:
>>
>> This patch introduces vhost_vdpa_net_load_single_vlan()
>> and vhost_vdpa_net_load_vlan() to restore the vlan
>> filtering state at device's startup.
>>
>> Co-developed-by: Eugenio Pérez <eperezma@redhat.com>
>> Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
>> Signed-off-by: Hawkins Jiawei <yin31149@gmail.com>
>> ---
>>   net/vhost-vdpa.c | 49 ++++++++++++++++++++++++++++++++++++++++++++++++
>>   1 file changed, 49 insertions(+)
>>
>> diff --git a/net/vhost-vdpa.c b/net/vhost-vdpa.c
>> index 9795306742..0787dd933b 100644
>> --- a/net/vhost-vdpa.c
>> +++ b/net/vhost-vdpa.c
>> @@ -965,6 +965,51 @@ static int vhost_vdpa_net_load_rx(VhostVDPAState *s,
>>       return 0;
>>   }
>>
>> +static int vhost_vdpa_net_load_single_vlan(VhostVDPAState *s,
>> +                                           const VirtIONet *n,
>> +                                           uint16_t vid)
>> +{
>> +    const struct iovec data = {
>> +        .iov_base = &vid,
>> +        .iov_len = sizeof(vid),
>> +    };
>> +    ssize_t dev_written = vhost_vdpa_net_load_cmd(s, VIRTIO_NET_CTRL_VLAN,
>> +                                                  VIRTIO_NET_CTRL_VLAN_ADD,
>> +                                                  &data, 1);
>> +    if (unlikely(dev_written < 0)) {
>> +        return dev_written;
>> +    }
>> +    if (unlikely(*s->status != VIRTIO_NET_OK)) {
>> +        return -EIO;
>> +    }
>> +
>> +    return 0;
>> +}
>> +
>> +static int vhost_vdpa_net_load_vlan(VhostVDPAState *s,
>> +                                    const VirtIONet *n)
>> +{
>> +    int r;
>> +
>> +    if (!virtio_vdev_has_feature(&n->parent_obj, VIRTIO_NET_F_CTRL_VLAN)) {
>> +        return 0;
>> +    }
>> +
>> +    for (int i = 0; i < MAX_VLAN >> 5; i++) {
>> +        for (int j = 0; n->vlans[i] && j <= 0x1f; j++) {
>> +            if (n->vlans[i] & (1U << j)) {
>> +                r = vhost_vdpa_net_load_single_vlan(s, n, (i << 5) + j);
>> +                if (unlikely(r != 0)) {
>> +                    return r;
>> +                }
>> +            }
>> +        }
>> +    }
>> +
>> +    return 0;
>> +}
>> +
>> +
>
> Nit: I'm not sure if it was here originally, but there is an extra newline here.

Hi Eugenio,

It was not here originally, it was introduced mistakenly during the
refactoring process.

I will fix this in the v2 version.

Thanks!


>
>>   static int vhost_vdpa_net_load(NetClientState *nc)
>>   {
>>       VhostVDPAState *s = DO_UPCAST(VhostVDPAState, nc, nc);
>> @@ -995,6 +1040,10 @@ static int vhost_vdpa_net_load(NetClientState *nc)
>>       if (unlikely(r)) {
>>           return r;
>>       }
>> +    r = vhost_vdpa_net_load_vlan(s, n);
>> +    if (unlikely(r)) {
>> +        return r;
>> +    }
>>
>>       return 0;
>>   }
>> --
>> 2.25.1
>>
>

Patchew 2.1-devel-b67e4c2

© 2016 - 2026 Red Hat, Inc.