kernel.git/drivers/net/dsa/b53/b53_priv.h, branch linux-5.8.y

net: dsa: b53: Bound check ARL searches

2020-05-01T00:43:29Z

ARL searches are done by reading two ARL entries at a time, do not cap the search at 1024 which would only limit us to half of the possible ARL capacity, but use b53_max_arl_entries() instead which does the right multiplication between bins and indexes. Signed-off-by: Florian Fainelli Reviewed-by: Andrew Lunn Signed-off-by: David S. Miller

net: dsa: b53: Provide number of ARL buckets

2020-05-01T00:43:29Z

In preparation for doing proper upper bound checking of FDB/MDB entries being added to the ARL, provide the number of ARL buckets for each switch chip we support. All chips have 1024 buckets, except 7278 which has only 256. Signed-off-by: Florian Fainelli Reviewed-by: Andrew Lunn Signed-off-by: David S. Miller

net: dsa: b53: Rename num_arl_entries to num_arl_bins

2020-05-01T00:43:29Z

The variable currently holds the number of ARL bins per ARL buckets, which is different from the number of ARL entries which would be bins times buckets. We will be adding a num_arl_buckets in a subsequent patch so get variables straight now. Signed-off-by: Florian Fainelli Reviewed-by: Andrew Lunn Signed-off-by: David S. Miller

net: dsa: propagate resolved link config via mac_link_up()

2020-02-27T20:02:14Z

Propagate the resolved link configuration down via DSA's phylink_mac_link_up() operation to allow split PCS/MAC to work. Tested-by: Vladimir Oltean Signed-off-by: Russell King Signed-off-by: David S. Miller

net: dsa: Get information about stacked DSA protocol

2020-01-09T00:01:13Z

It is possible to stack multiple DSA switches in a way that they are not part of the tree (disjoint) but the DSA master of a switch is a DSA slave of another. When that happens switch drivers may have to know this is the case so as to determine whether their tagging protocol has a remove chance of working. This is useful for specific switch drivers such as b53 where devices have been known to be stacked in the wild without the Broadcom tag protocol supporting that feature. This allows b53 to continue supporting those devices by forcing the disabling of Broadcom tags on the outermost switches if necessary. The get_tag_protocol() function is therefore updated to gain an additional enum dsa_tag_protocol argument which denotes the current tagging protocol used by the DSA master we are attached to, else DSA_TAG_PROTO_NONE for the top of the dsa_switch_tree. Signed-off-by: Florian Fainelli Signed-off-by: David S. Miller

net: dsa: b53: Add support for MDB

2019-10-28T20:58:20Z

In preparation for supporting IGMP snooping with or without the use of a bridge, add support within b53_common.c to program the ARL entries for multicast operations. The key difference is that a multicast ARL entry is comprised of a bitmask of enabled ports, instead of a port number. Signed-off-by: Florian Fainelli Reviewed-by: Vivien Didelot Signed-off-by: David S. Miller

net: dsa: b53: Add support for port_egress_floods callback

2019-09-16T07:06:12Z

Add support for configuring the per-port egress flooding control for both Unicast and Multicast traffic. Signed-off-by: Florian Fainelli Reviewed-by: Andrew Lunn Signed-off-by: David S. Miller

net: dsa: b53: Use vlan_filtering property from dsa_switch

2019-05-01T03:05:29Z

While possible (and safe) to use the newly introduced dsa_port_is_vlan_filtering helper, fabricating a dsa_port pointer is a bit awkward, so simply retrieve this from the dsa_switch structure. Signed-off-by: Vladimir Oltean Reviewed-by: Andrew Lunn Signed-off-by: David S. Miller

dsa: Remove phydev parameter from disable_port call

2019-02-25T06:30:34Z

No current DSA driver makes use of the phydev parameter passed to the disable_port call. Remove it. Signed-off-by: Andrew Lunn Signed-off-by: David S. Miller

net: dsa: b53: Properly account for VLAN filtering

2019-02-16T04:37:54Z

VLAN filtering can be built into the kernel, and also dynamically turned on/off through the bridge master device. Allow re-configuring the switch appropriately to account for that by deciding whether VLAN table (v_table) misses should lead to a drop or forward. Fixes: a2482d2ce349 ("net: dsa: b53: Plug in VLAN support") Signed-off-by: Florian Fainelli Signed-off-by: David S. Miller