diff options
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/networking/dsa/dsa.rst | 30 |
1 files changed, 8 insertions, 22 deletions
diff --git a/Documentation/networking/dsa/dsa.rst b/Documentation/networking/dsa/dsa.rst index 3bca80a53a86..ced2eb6d647a 100644 --- a/Documentation/networking/dsa/dsa.rst +++ b/Documentation/networking/dsa/dsa.rst @@ -452,14 +452,8 @@ SWITCHDEV DSA directly utilizes SWITCHDEV when interfacing with the bridge layer, and more specifically with its VLAN filtering portion when configuring VLANs on top -of per-port slave network devices. Since DSA primarily deals with -MDIO-connected switches, although not exclusively, SWITCHDEV's -prepare/abort/commit phases are often simplified into a prepare phase which -checks whether the operation is supported by the DSA switch driver, and a commit -phase which applies the changes. - -As of today, the only SWITCHDEV objects supported by DSA are the FDB and VLAN -objects. +of per-port slave network devices. As of today, the only SWITCHDEV objects +supported by DSA are the FDB and VLAN objects. Device Tree ----------- @@ -638,14 +632,10 @@ Bridge VLAN filtering accept any 802.1Q frames irrespective of their VLAN ID, and untagged frames are allowed. -- ``port_vlan_prepare``: bridge layer function invoked when the bridge prepares the - configuration of a VLAN on the given port. If the operation is not supported - by the hardware, this function should return ``-EOPNOTSUPP`` to inform the bridge - code to fallback to a software implementation. No hardware setup must be done - in this function. See port_vlan_add for this and details. - - ``port_vlan_add``: bridge layer function invoked when a VLAN is configured - (tagged or untagged) for the given switch port + (tagged or untagged) for the given switch port. If the operation is not + supported by the hardware, this function should return ``-EOPNOTSUPP`` to + inform the bridge code to fallback to a software implementation. - ``port_vlan_del``: bridge layer function invoked when a VLAN is removed from the given switch port @@ -673,14 +663,10 @@ Bridge VLAN filtering function that the driver has to call for each MAC address known to be behind the given port. A switchdev object is used to carry the VID and FDB info. -- ``port_mdb_prepare``: bridge layer function invoked when the bridge prepares the - installation of a multicast database entry. If the operation is not supported, - this function should return ``-EOPNOTSUPP`` to inform the bridge code to fallback - to a software implementation. No hardware setup must be done in this function. - See ``port_fdb_add`` for this and details. - - ``port_mdb_add``: bridge layer function invoked when the bridge wants to install - a multicast database entry, the switch hardware should be programmed with the + a multicast database entry. If the operation is not supported, this function + should return ``-EOPNOTSUPP`` to inform the bridge code to fallback to a + software implementation. The switch hardware should be programmed with the specified address in the specified VLAN ID in the forwarding database associated with this VLAN ID. |