linux-kernel - [PATCH net v2 0/5] net: dsa: b53: Various ARL fixes

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Date:   Mon, 20 Apr 2020 20:26:50 -0700
From:   Florian Fainelli <f.fainelli@...il.com>
To:     netdev@...r.kernel.org
Cc:     Florian Fainelli <f.fainelli@...il.com>,
        Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        linux-kernel@...r.kernel.org (open list), davem@...emloft.net,
        kuba@...nel.org
Subject: [PATCH net v2 0/5] net: dsa: b53: Various ARL fixes

Hi David, Andrew, Vivien, Jakub,

This patch series fixes a number of short comings in the existing b53
driver ARL management logic in particular:

- we were not looking up the {MAC,VID} tuples against their VID, despite
  having VLANs enabled

- the MDB entries (multicast) would lose their validity as soon as a
  single port in the vector would leave the entry

- the ARL was currently under utilized because we would always place new
  entries in bin index #1, instead of using all possible bins available,
  thus reducing the ARL effective size by 50% or 75% depending on the
  switch generation

- it was possible to overwrite the ARL entries because no proper space
  verification was done

This patch series addresses all of these issues.

Changes in v2:
- added a new patch to correctly flip invidual VLAN learning vs. shared
  VLAN learning depending on the global VLAN state

- added Andrew's R-b tags for patches which did not change

- corrected some verbosity and minor issues in patch #4 to match caller
  expectations, also avoid a variable length DECLARE_BITMAP() call

Florian Fainelli (5):
  net: dsa: b53: Lookup VID in ARL searches when VLAN is enabled
  net: dsa: b53: Fix valid setting for MDB entries
  net: dsa: b53: Fix ARL register definitions
  net: dsa: b53: Rework ARL bin logic
  net: dsa: b53: b53_arl_rw_op() needs to select IVL or SVL

 drivers/net/dsa/b53/b53_common.c | 38 +++++++++++++++++++++++++++-----
 drivers/net/dsa/b53/b53_regs.h   |  8 +++++--
 2 files changed, 39 insertions(+), 7 deletions(-)

-- 
2.17.1