linux_dsm_epyc7002/drivers/net
Scott Feldman 6c70794500 rocker: implement L2 bridge offloading
Add L2 bridge offloading support to rocker driver.  Here, the Linux bridge
driver is used to collect swdev ports into a tagged (or untagged) VLAN
bridge.  The switchdev will offload from the bridge driver the following L2
bridging functions:

 - Learning of neighbor MAC addresses on VLAN X  Learned mac/vlan is
installed in bridge FDB.  (And removed when device unlearns mac/vlan).
Learning must be turned off on each bridge port to disable the feature in
the bridge driver.

- Flooding of multicast/broadcast and unknown unicast pkts to (STP)
active ports in bridge.  The bridge driver is unaware of the flooding happening
at the device level.  Flooding must be turned off on each bridge port to
disable the feature on the bridge driver.

- STP port state is pushed down to driver/device.  The bridge still processes
STP BDPUs and maintains port STP state (for all VLANs in bridge), but
the driver/device must be notified of port STP state change to program
the device.

Multiple (VLAN) bridges are supported.  The device (implemented per
the OF-DPA spec) must use a portion of the VLAN namespace for
internal VLANs.  Right now, the upper 255 VLANs (0xf00 to 0xffe) are
used as internal VLAN IDs for untagged traffic and are not available
as port VLANs.

The driver uses the following interfaces:

1. To track VLAN add/del on ports in bridge:

.ndo_vlan_rx_add_vid
.ndo_vlan_rx_kill_vid

2. To track port add/del membership in bridge:

NETDEV_CHANGEUPPER netdevice notifier

3. To catch static FDB entries installed on bridge/vlan by user using netlink:

.ndo_fdb_add
.ndo_fdb_del

4. To be notified on port STP state change:

.ndo_switch_port_stp_update

5. To notify bridge driver on learned/forgotten mac/vlans on bridge port:

br_fdb_external_learn_add
br_fdb_external_learn_del

Signed-off-by: Scott Feldman <sfeldma@gmail.com>
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-02 20:01:25 -08:00
..
appletalk net: better IFF_XMIT_DST_RELEASE support 2014-10-07 13:22:11 -04:00
arcnet ARCNET: enable eae arcnet card support 2014-09-29 14:36:26 -04:00
bonding Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-11-21 22:28:24 -05:00
caif
can Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-11-21 22:28:24 -05:00
cris
dsa Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-11-29 20:47:48 -08:00
ethernet rocker: implement L2 bridge offloading 2014-12-02 20:01:25 -08:00
fddi defxx: Clean up DEFEA resource management 2014-11-21 16:37:13 -05:00
hamradio hamradio: 6pack: remove unnecessary check 2014-11-03 15:34:31 -05:00
hippi
hyperv net: Hyper-V: Deletion of an unnecessary check before the function call "vfree" 2014-11-25 17:22:48 -05:00
ieee802154 at86rf230: fix commentation for symbol duration 2014-11-17 09:49:14 +01:00
ipvlan ipvlan: ipvlan depends on INET and IPV6 2014-11-29 20:53:05 -08:00
irda irda: Convert IRDA_DEBUG to pr_debug 2014-11-12 13:56:41 -05:00
phy net: phy: micrel: add copyright entry 2014-11-21 14:08:57 -05:00
plip
ppp new helper: memcpy_from_msg() 2014-11-24 04:28:48 -05:00
slip
team net: generic dev_disable_lro() stacked device handling 2014-11-13 14:48:56 -05:00
usb Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-11-21 22:28:24 -05:00
vmxnet3 vmxnet3: use netdev_rss_key_fill() helper 2014-11-16 15:59:13 -05:00
wan net: better IFF_XMIT_DST_RELEASE support 2014-10-07 13:22:11 -04:00
wimax kbuild: remove unnecessary "obj- := dummy.o" trick 2014-10-02 13:55:02 +02:00
wireless Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-11-29 20:47:48 -08:00
xen-netback Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-11-29 20:47:48 -08:00
dummy.c
eql.c net: better IFF_XMIT_DST_RELEASE support 2014-10-07 13:22:11 -04:00
ifb.c net: better IFF_XMIT_DST_RELEASE support 2014-10-07 13:22:11 -04:00
Kconfig ipvlan: ipvlan depends on INET and IPV6 2014-11-29 20:53:05 -08:00
LICENSE.SRC
loopback.c net: better IFF_XMIT_DST_RELEASE support 2014-10-07 13:22:11 -04:00
macvlan.c net: make vid as a parameter for ndo_fdb_add/ndo_fdb_del 2014-12-02 20:01:18 -08:00
macvtap.c {macvtap,tun}_get_user(): switch to iov_iter 2014-11-24 05:15:41 -05:00
Makefile ipvlan: Initial check-in of the IPVLAN driver. 2014-11-24 15:29:18 -05:00
mdio.c
mii.c
netconsole.c
nlmon.c
ntb_netdev.c
rionet.c
sb1000.c
Space.c
sungem_phy.c
tun.c {macvtap,tun}_get_user(): switch to iov_iter 2014-11-24 05:15:41 -05:00
veth.c
virtio_net.c virtio-net: validate features during probe 2014-11-21 00:26:43 -05:00
vxlan.c net: make vid as a parameter for ndo_fdb_add/ndo_fdb_del 2014-12-02 20:01:18 -08:00
xen-netfront.c xen-netfront: always keep the Rx ring full of requests 2014-10-26 22:21:32 -04:00