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[net-next,v1,0/4] mlxbf_gige: add BlueField-3 support

Message ID 20221027220013.24276-1-davthompson@nvidia.com (mailing list archive)
Headers show
Series mlxbf_gige: add BlueField-3 support | expand

Message

David Thompson Oct. 27, 2022, 10 p.m. UTC 
This patch series adds driver logic to the "mlxbf_gige"
Ethernet driver in order to support the third generation 
BlueField SoC (BF3).  The existing "mlxbf_gige" driver is
extended with BF3-specific logic and run-time decisions
are made by the driver depending on the SoC generation
(BF2 vs. BF3).

The BF3 SoC is similar to BF2 SoC with regards to transmit
and receive packet processing:
       * Driver rings usage; consumer & producer indices
       * Single queue for receive and transmit
       * DMA operation

The differences between BF3 and BF2 are:
       * In addition to supporting 1Gbps interface speed, the BF3 SoC
         adds support for 10Mbps and 100Mbps interface speeds
       * BF3 requires SerDes config logic to support its SGMII interface
       * BF3 adds support for "ethtool -s" for interface speed config
       * BF3 utilizes different MDIO logic for accessing the
         board-level PHY device

Testing
  - Successful build of kernel for ARM64, ARM32, X86_64
  - Tested ARM64 build on FastModels, Palladium, SoC

David Thompson (4):
  mlxbf_gige: add MDIO support for BlueField-3
  mlxbf_gige: support 10M/100M/1G speeds on BlueField-3
  mlxbf_gige: add BlueField-3 Serdes configuration
  mlxbf_gige: add BlueField-3 ethtool_ops

 .../net/ethernet/mellanox/mlxbf_gige/Makefile |    3 +-
 .../ethernet/mellanox/mlxbf_gige/mlxbf_gige.h |   34 +-
 .../mellanox/mlxbf_gige/mlxbf_gige_ethtool.c  |   16 +-
 .../mellanox/mlxbf_gige/mlxbf_gige_main.c     |  170 ++-
 .../mellanox/mlxbf_gige/mlxbf_gige_mdio.c     |  185 +--
 .../mellanox/mlxbf_gige/mlxbf_gige_mdio_bf2.h |   53 +
 .../mellanox/mlxbf_gige/mlxbf_gige_mdio_bf3.h |   54 +
 .../mellanox/mlxbf_gige/mlxbf_gige_regs.h     |   22 +
 .../mellanox/mlxbf_gige/mlxbf_gige_uphy.c     | 1191 +++++++++++++++++
 .../mellanox/mlxbf_gige/mlxbf_gige_uphy.h     |  398 ++++++
 10 files changed, 2027 insertions(+), 99 deletions(-)
 create mode 100644 drivers/net/ethernet/mellanox/mlxbf_gige/mlxbf_gige_mdio_bf2.h
 create mode 100644 drivers/net/ethernet/mellanox/mlxbf_gige/mlxbf_gige_mdio_bf3.h
 create mode 100644 drivers/net/ethernet/mellanox/mlxbf_gige/mlxbf_gige_uphy.c
 create mode 100644 drivers/net/ethernet/mellanox/mlxbf_gige/mlxbf_gige_uphy.h