linux-kernel - [PATCH net-next v4 0/8] net: lan966x: Add lag support

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Message-ID: <20220817193449.1673002-1-horatiu.vultur@microchip.com>
Date:   Wed, 17 Aug 2022 21:34:41 +0200
From:   Horatiu Vultur <horatiu.vultur@...rochip.com>
To:     <linux-kernel@...r.kernel.org>, <netdev@...r.kernel.org>
CC:     <UNGLinuxDriver@...rochip.com>, <davem@...emloft.net>,
        <edumazet@...gle.com>, <kuba@...nel.org>, <pabeni@...hat.com>,
        <linux@...linux.org.uk>, <vladimir.oltean@....com>,
        Horatiu Vultur <horatiu.vultur@...rochip.com>
Subject: [PATCH net-next v4 0/8] net: lan966x: Add lag support

Add lag support for lan966x.
First 4 patches don't do any changes to the current behaviour, they
just prepare for lag support. While the rest is to add the lag support.

v3->v4:
- aggregation configuration is global for all bonds, so make sure that
  there can't be enabled multiple configurations at the same time
- return error faster from lan966x_foreign_bridging_check, don't
  continue the search if the error is seen already
- flush fdb workqueue when a port leaves a bridge or lag.

v2->v3:
- return error code from 'switchdev_bridge_port_offload()'
- fix lan966x_foreign_dev_check(), it was missing lag support
- remove lan966x_lag_mac_add_entry and lan966x_mac_del_entry as
  they are not needed
- fix race conditions when accessing port->bond
- move FDB entries when a new port joins the lag if it has a lower

v1->v2:
- fix the LAG PGIDs when ports go down, in this way is not
  needed anymore the last patch of the series.

Horatiu Vultur (8):
  net: lan966x: Add registers used to configure lag interfaces
  net: lan966x: Split lan966x_fdb_event_work
  net: lan966x: Flush fdb workqueue when port is leaving a bridge.
  net: lan966x: Expose lan966x_switchdev_nb and
    lan966x_switchdev_blocking_nb
  net: lan966x: Extend lan966x_foreign_bridging_check
  net: lan966x: Add lag support for lan966x
  net: lan966x: Extend FDB to support also lag
  net: lan966x: Extend MAC to support also lag interfaces.

 .../net/ethernet/microchip/lan966x/Kconfig    |   1 +
 .../net/ethernet/microchip/lan966x/Makefile   |   2 +-
 .../ethernet/microchip/lan966x/lan966x_fdb.c  | 155 +++++---
 .../ethernet/microchip/lan966x/lan966x_lag.c  | 363 ++++++++++++++++++
 .../ethernet/microchip/lan966x/lan966x_mac.c  | 104 ++++-
 .../ethernet/microchip/lan966x/lan966x_main.h |  39 ++
 .../ethernet/microchip/lan966x/lan966x_regs.h |  45 +++
 .../microchip/lan966x/lan966x_switchdev.c     | 138 +++++--
 8 files changed, 741 insertions(+), 106 deletions(-)
 create mode 100644 drivers/net/ethernet/microchip/lan966x/lan966x_lag.c

-- 
2.33.0