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| author |   Florian Fainelli <f.fainelli@gmail.com> | 2020-09-23 14:40:38 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2020-09-23 18:13:45 -0700 |
| commit | ed409f3bbaa5632b8316f7596dec227814811620 (patch) | |
| tree | 74bceb42b315affb090e4c53e27a5ea9a171bd32 /net | |
| parent | net: dsa: untag the bridge pvid from rx skbs (diff) | |
| download | linux-dev-ed409f3bbaa5632b8316f7596dec227814811620.tar.xz linux-dev-ed409f3bbaa5632b8316f7596dec227814811620.zip | |
net: dsa: b53: Configure VLANs while not filtering
Update the B53 driver to support VLANs while not filtering. This
requires us to enable VLAN globally within the switch upon driver
initial configuration (dev->vlan_enabled).
We also need to remove the code that dealt with PVID re-configuration in
b53_vlan_filtering() since that function worked under the assumption
that it would only be called to make a bridge VLAN filtering, or not
filtering, and we would attempt to move the port's PVID accordingly.
Now that VLANs are programmed all the time, even in the case of a
non-VLAN filtering bridge, we would be programming a default_pvid for
the bridged switch ports.
We need the DSA receive path to pop the VLAN tag if it is the bridge's
default_pvid because the CPU port is always programmed tagged in the
programmed VLANs. In order to do so we utilize the
dsa_untag_bridge_pvid() helper introduced in the commit before within
net/dsa/tag_brcm.c.
Acked-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/dsa/tag_brcm.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/net/dsa/tag_brcm.c b/net/dsa/tag_brcm.c index cc8512b5f9e2..1dab212a294f 100644 --- a/net/dsa/tag_brcm.c +++ b/net/dsa/tag_brcm.c @@ -140,6 +140,11 @@ static struct sk_buff *brcm_tag_rcv_ll(struct sk_buff *skb, /* Remove Broadcom tag and update checksum */ skb_pull_rcsum(skb, BRCM_TAG_LEN); + /* Set the MAC header to where it should point for + * dsa_untag_bridge_pvid() to parse the correct VLAN header. + */ + skb_set_mac_header(skb, -ETH_HLEN); + skb->offload_fwd_mark = 1; return skb; @@ -191,7 +196,7 @@ static struct sk_buff *brcm_tag_rcv(struct sk_buff *skb, struct net_device *dev, nskb->data - ETH_HLEN - BRCM_TAG_LEN, 2 * ETH_ALEN); - return nskb; + return dsa_untag_bridge_pvid(nskb); } static const struct dsa_device_ops brcm_netdev_ops = { @@ -219,8 +224,14 @@ static struct sk_buff *brcm_tag_rcv_prepend(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt) { + struct sk_buff *nskb; + /* tag is prepended to the packet */ - return brcm_tag_rcv_ll(skb, dev, pt, ETH_HLEN); + nskb = brcm_tag_rcv_ll(skb, dev, pt, ETH_HLEN); + if (!nskb) + return nskb; + + return dsa_untag_bridge_pvid(nskb); } static const struct dsa_device_ops brcm_prepend_netdev_ops = { |