[RFC PATCH 0/3] net: Adding the Sparx5 Switch Driver

[Steen Hegelund <steen.hegelund@microchip.com>]

This series provides the Microchip Sparx5 Switch Driver

The Sparx5 Carrier Ethernet and Industrial switch family delivers 64 Ethernet
ports and up to 200 Gbps of switching bandwidth.

It provides a rich set of Ethernet switching features such as hierarchical QoS,
hardware-based OAM  and service activation testing, protection switching,
IEEE 1588, and Synchronous Ethernet.

Using provider bridging (Q-in-Q) and MPLS/MPLS-TP technology, it delivers MEF CE
2.0 Ethernet virtual connections (EVCs) and features advanced TCAM classification
in both ingress and egress.

Per-EVC features include advanced L3-aware classification, a rich set of
statistics, OAM for end-to-end performance monitoring, and dual-rate policing
and shaping.

Time sensitive networking (TSN) is supported through a comprehensive set of
features including frame preemption, cut-through, frame replication and
elimination for reliability, enhanced scheduling: credit-based shaping,
time-aware shaping, cyclic queuing, and forwarding, and per-stream
policing and filtering.

Together with IEEE 1588 and IEEE 802.1AS support, this guarantees low-latency
deterministic networking for Fronthaul, Carrier, and Industrial Ethernet.

The Sparx5 switch family consists of following SKUs:

- VSC7546 Sparx5-64
  up to 64 Gbps of bandwidth with the following primary port configurations:
  - 6 *10G
  - 16 * 2.5G + 2 * 10G
  - 24 * 1G + 4 * 10G

- VSC7549 Sparx5-90
  up to 90 Gbps of bandwidth with the following primary port configurations:
  - 9 * 10G
  - 16 * 2.5G + 4 * 10G
  - 48 * 1G + 4 * 10G

- VSC7552 Sparx5-128
  up to 128 Gbps of bandwidth with the following primary port configurations:
  - 12 * 10G
  - 16 * 2.5G + 8 * 10G
  - 48 * 1G + 8 * 10G

- VSC7556 Sparx5-160
  up to 160 Gbps of bandwidth with the following primary port configurations:
  - 16 * 10G
  - 10 * 10G + 2 * 25G
  - 16 * 2.5G + 10 * 10G
  - 48 * 1G + 10 * 10G

- VSC7558 Sparx5-200
  up to 200 Gbps of bandwidth with the following primary port configurations:
  - 20 * 10G
  - 8 * 25G

In addition, the device supports one 10/100/1000/2500/5000 Mbps SGMII/SerDes
node processor interface (NPI) Ethernet port.

The Sparx5 support is developed on the PCB134 and PCB135 evaluation boards.

- PCB134 main networking features:
  - 12x SFP+ front 10G module slots (connected to Sparx5 through SFI).
  - 8x SFP28 front 25G module slots (connected to Sparx5 through SFI high speed).
  - Optional, one additional 10/100/1000BASE-T (RJ45) Ethernet port
    (on-board VSC8211 PHY connected to Sparx5 through SGMII).

- PCB135 main networking features:
  - 48x1G (10/100/1000M) RJ45 front ports using 12xVSC8514 QuadPHY’s each
    connected to VSC7558 through QSGMII.
  - 4x10G (1G/2.5G/5G/10G) RJ45 front ports using the AQR407 10G QuadPHY each
    port connects to VSC7558 through SFI.
  - 4x SFP28 25G module slots on back connected to VSC7558 through SFI high
    speed.
  - Optional, one additional 1G (10/100/1000M) RJ45 port using an on-board
    VSC8211 PHY, which can be connected to VSC7558 NPI port through SGMII using
    a loopback add-on PCB)

This series provides support for:
  - SFPs and DAC cables via PHYLINK with a number of 5G, 10G and 25G devices
    and media types.
  - Port module configuration for 10M to 25G speeds with SGMII, QSGMII,
    1000BASEX, 2500BASEX and 10GBASER as appropriate for these modes.
  - SerDes configuration via the Sparx5 SerDes driver (see below).
  - Host mode providing register based injection and extraction.
  - Switch mode providing MAC/VLAN table learning and Layer2 switching offloaded
    to the Sparx5 switch.
  - STP state, VLAN support, host/bridge port mode, Forwarding DB, and
    configuration and statistics via ethtool.

More support will be added at a later stage.

The Sparx5 Switch chip register model can be browsed here:
Link: https://microchip-ung.github.io/sparx-5_reginfo/reginfo_sparx-5.html

The series depends on the following series currently on their way
into the kernel:

- Sparx5 SerDes Driver
  Link: https://lore.kernel.org/r/20201123114234.2292766-1-steen.hegelund@microchip.com/

- Serial GPIO Controller
  Link: https://lore.kernel.org/r/20201113145151.68900-1-lars.povlsen@microchip.com/

Steen Hegelund (3):
  dt-bindings: net: sparx5: Add sparx5-switch bindings
  net: sparx5: Add Sparx5 switchdev driver
  arm64: dts: sparx5: Add the Sparx5 switch node

 .../bindings/net/microchip,sparx5-switch.yaml |  633 +++
 arch/arm64/boot/dts/microchip/sparx5.dtsi     |  364 ++
 .../dts/microchip/sparx5_pcb134_board.dtsi    |  424 +-
 .../dts/microchip/sparx5_pcb135_board.dtsi    |  602 ++-
 drivers/net/ethernet/microchip/Kconfig        |    2 +
 drivers/net/ethernet/microchip/Makefile       |    2 +
 drivers/net/ethernet/microchip/sparx5/Kconfig |    8 +
 .../net/ethernet/microchip/sparx5/Makefile    |   11 +
 .../microchip/sparx5/sparx5_calendar.c        |  593 +++
 .../ethernet/microchip/sparx5/sparx5_common.h |  162 +
 .../microchip/sparx5/sparx5_ethtool.c         | 1027 +++++
 .../microchip/sparx5/sparx5_mactable.c        |  510 +++
 .../ethernet/microchip/sparx5/sparx5_main.c   |  851 ++++
 .../ethernet/microchip/sparx5/sparx5_main.h   |  236 +
 .../microchip/sparx5/sparx5_main_regs.h       | 3922 +++++++++++++++++
 .../ethernet/microchip/sparx5/sparx5_netdev.c |  238 +
 .../ethernet/microchip/sparx5/sparx5_packet.c |  279 ++
 .../microchip/sparx5/sparx5_phylink.c         |  179 +
 .../ethernet/microchip/sparx5/sparx5_port.c   | 1125 +++++
 .../ethernet/microchip/sparx5/sparx5_port.h   |   95 +
 .../microchip/sparx5/sparx5_switchdev.c       |  510 +++
 .../ethernet/microchip/sparx5/sparx5_vlan.c   |  219 +
 22 files changed, 11932 insertions(+), 60 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/net/microchip,sparx5-switch.yaml
 create mode 100644 drivers/net/ethernet/microchip/sparx5/Kconfig
 create mode 100644 drivers/net/ethernet/microchip/sparx5/Makefile
 create mode 100644 drivers/net/ethernet/microchip/sparx5/sparx5_calendar.c
 create mode 100644 drivers/net/ethernet/microchip/sparx5/sparx5_common.h
 create mode 100644 drivers/net/ethernet/microchip/sparx5/sparx5_ethtool.c
 create mode 100644 drivers/net/ethernet/microchip/sparx5/sparx5_mactable.c
 create mode 100644 drivers/net/ethernet/microchip/sparx5/sparx5_main.c
 create mode 100644 drivers/net/ethernet/microchip/sparx5/sparx5_main.h
 create mode 100644 drivers/net/ethernet/microchip/sparx5/sparx5_main_regs.h
 create mode 100644 drivers/net/ethernet/microchip/sparx5/sparx5_netdev.c
 create mode 100644 drivers/net/ethernet/microchip/sparx5/sparx5_packet.c
 create mode 100644 drivers/net/ethernet/microchip/sparx5/sparx5_phylink.c
 create mode 100644 drivers/net/ethernet/microchip/sparx5/sparx5_port.c
 create mode 100644 drivers/net/ethernet/microchip/sparx5/sparx5_port.h
 create mode 100644 drivers/net/ethernet/microchip/sparx5/sparx5_switchdev.c
 create mode 100644 drivers/net/ethernet/microchip/sparx5/sparx5_vlan.c

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2.29.2