[PATCH V11 net-next 00/10] Add support of HIBMCGE Ethernet Driver

[Jijie Shao <shaojijie@huawei.com>]

This patch set adds the support of Hisilicon BMC Gigabit Ethernet Driver.

This patch set includes basic Rx/Tx functionality. It also includes
the registration and interrupt codes.

This work provides the initial support to the HIBMCGE and
would incrementally add features or enhancements.

---
ChangeLog:
v10 -> v11:
  - Delete devm_netdev_alloc_pcpu_stats to prevent memory leak,
    suggested by Jakub.
  - Use the same pattern for 'control' and 'ctrl', suggested by Christophe JAILLET.
  - hbg_mdio_init_hw() return void because no error patch,
    suggested by Christophe JAILLET.
  - Fix a syntax error in comment, suggested by Christophe JAILLET.
  - return -EBUSY in ndo.change_mtu if interface is running, suggested by Jakub.
  - Remove unnecessary declares for struct, suggested by Jakub.
  - fix budget to 128 in TX napi.poll(), suggested by Jakub.
  - Not call napi_complete_done() if packet_done >= budget in napi.poll(),
    suggested by Jakub.
  - Use devm_kmalloc() instead of devm_kzalloc() for tx_ring->tout_log_buf,
    suggested by Christophe JAILLET.
  - Not refill the buffers if budget is 0 in RX napi.poll(), suggested by Jakub.
  - Remove "ccflags-y += -I$(src)" from Makefile, suggested by Jakub.
  - Use napi_gro_receive() instead of netif_receive_skb(), suggested by Jakub.
  - Remove ndo.get_stats64() because dev_get_tstats64() do same thing.
  v10: https://lore.kernel.org/all/20240912025127.3912972-1-shaojijie@huawei.com/
v9 -> v10:
  - Drop patch "add ndo_validate_addr check in dev_set_mac_address"
  - Add validation for mac address in hbg_net_set_mac_address()
  - Add "select MOTORCOMM_PHY" and "select REALTEK_PHY" in Kconfig.
  - Use ETH_DATA_LEN instead of HBG_DEFAULT_MTU_SIZE, suggested by Andrew.
  - Delete error description about genphy in commit log, suggested by Andrew.
  v9: https://lore.kernel.org/all/20240910075942.1270054-1-shaojijie@huawei.com/
v8 -> v9:
  - Remove HBG_NIC_STATE_OPEN in ndo.open() and ndo.stop(),
    suggested by Kalesh and Andrew
  v8: https://lore.kernel.org/all/20240909023141.3234567-1-shaojijie@huawei.com/
v7 -> v8:
  - Set netdev->pcpu_stat_type to NETDEV_PCPU_STAT_TSTATS, suggested by Jakub
  v7: https://lore.kernel.org/all/20240905143120.1583460-1-shaojijie@huawei.com/
v6 -> v7:
  - Move the define inside the function body to the top of the .c file,
    suggested by Paolo and Andrew.
  - Respect the reverse x-mas tree order, suggested by Paolo.
  - Add check for netif_txq_maybe_stop(), suggested by Paolo.
  - Use dev_sw_netstats_tx_add() instead of dev->stats, suggested by Paolo.
  - Modify net_dev to netdev, suggested by Paolo.
  v6: https://lore.kernel.org/all/20240830121604.2250904-12-shaojijie@huawei.com/
v5 -> v6:
  - Delete netif_carrier_off() in .ndo_open() and .ndo_stop(),
    suggested by Jakub and Andrew.
  - Remove hbg_txrx_init() from probe path, alloc ring buffer in .ndo_open(),
    and release ring buffer in .ndo_stop(), suggested by Jakub and Andrew.
  v5: https://lore.kernel.org/all/20240827131455.2919051-1-shaojijie@huawei.com/
v4 -> v5:
  - Delete unnecessary semicolon, suggested by Jakub.
  v4: https://lore.kernel.org/all/20240826081258.1881385-1-shaojijie@huawei.com/
v3 -> v4:
  - Delete INITED_STATE in priv, suggested by Andrew.
  - Delete unnecessary defensive code in hbg_phy_start()
    and hbg_phy_stop(), suggested by Andrew.
  v3: https://lore.kernel.org/all/20240822093334.1687011-1-shaojijie@huawei.com/
v2 -> v3:
  - Add "select PHYLIB" in Kconfig, reported by Jakub.
  - Use ndo_validate_addr() instead of is_valid_ether_addr()
    in dev_set_mac_address(), suggested by Jakub and Andrew.
  v2: https://lore.kernel.org/all/20240820140154.137876-1-shaojijie@huawei.com/
v1 -> v2:
  - fix build errors reported by kernel test robot <lkp@intel.com>
    Closes: https://lore.kernel.org/oe-kbuild-all/202408192219.zrGff7n1-lkp@intel.com/
    Closes: https://lore.kernel.org/oe-kbuild-all/202408200026.q20EuSHC-lkp@intel.com/
  v1: https://lore.kernel.org/all/20240819071229.2489506-1-shaojijie@huawei.com/
RFC v2 -> v1:
  - Use FIELD_PREP/FIELD_GET instead of union, suggested by Andrew.
  - Delete unnecessary defensive code, suggested by Andrew.
  - A few other minor changes.
  RFC v2: https://lore.kernel.org/all/20240813135640.1694993-1-shaojijie@huawei.com/
RFC v1 -> RFC v2:
  - Replace linkmode_copy() with phy_remove_link_mode() to
    simplify the PHY configuration process, suggested by Andrew.
  - Delete hbg_get_link_status() from the scheduled task, suggested by Andrew.
  - Delete validation for mtu in hbg_net_change_mtu(), suggested by Andrew.
  - Delete validation for mac address in hbg_net_set_mac_address(),
    suggested by Andrew.
  - Use napi_complete_done() to simplify the process, suggested by Joe Damato.
  - Use ethtool_op_get_link(), phy_ethtool_get_link_ksettings(),
    and phy_ethtool_set_link_ksettings() to simplify the code, suggested by Andrew.
  - Add the check on the return value of phy_connect_direct(),
    suggested by Jonathan.
  - Adjusted the layout to place the fields and register definitions
    in one place, suggested by Jonathan.
  - Replace request_irq with devm_request_irq, suggested by Jonathan.
  - Replace BIT_MASK() with BIT(), suggested by Jonathan.
  - Introduce irq_handle in struct hbg_irq_info in advance to reduce code changes,
    suggested by Jonathan.
  - Delete workqueue for this patch set, suggested by Jonathan.
  - Support to compile this driver on all arch in Kconfig,
    suggested by Andrew and Jonathan.
  - Add a patch to add is_valid_ether_addr check in dev_set_mac_address,
    suggested by Andrew.
  - A few other minor changes.
  RFC v1: https://lore.kernel.org/all/20240731094245.1967834-1-shaojijie@huawei.com/
---

Jijie Shao (10):
  net: hibmcge: Add pci table supported in this module
  net: hibmcge: Add read/write registers supported through the bar space
  net: hibmcge: Add mdio and hardware configuration supported in this
    module
  net: hibmcge: Add interrupt supported in this module
  net: hibmcge: Implement some .ndo functions
  net: hibmcge: Implement .ndo_start_xmit function
  net: hibmcge: Implement rx_poll function to receive packets
  net: hibmcge: Implement some ethtool_ops functions
  net: hibmcge: Add a Makefile and update Kconfig for hibmcge
  net: hibmcge: Add maintainer for hibmcge

 MAINTAINERS                                   |   7 +
 drivers/net/ethernet/hisilicon/Kconfig        |  18 +-
 drivers/net/ethernet/hisilicon/Makefile       |   1 +
 .../net/ethernet/hisilicon/hibmcge/Makefile   |   8 +
 .../ethernet/hisilicon/hibmcge/hbg_common.h   | 131 ++++++
 .../ethernet/hisilicon/hibmcge/hbg_ethtool.c  |  17 +
 .../ethernet/hisilicon/hibmcge/hbg_ethtool.h  |  11 +
 .../net/ethernet/hisilicon/hibmcge/hbg_hw.c   | 265 ++++++++++++
 .../net/ethernet/hisilicon/hibmcge/hbg_hw.h   |  59 +++
 .../net/ethernet/hisilicon/hibmcge/hbg_irq.c  | 126 ++++++
 .../net/ethernet/hisilicon/hibmcge/hbg_irq.h  |  11 +
 .../net/ethernet/hisilicon/hibmcge/hbg_main.c | 253 +++++++++++
 .../net/ethernet/hisilicon/hibmcge/hbg_mdio.c | 219 ++++++++++
 .../net/ethernet/hisilicon/hibmcge/hbg_mdio.h |  12 +
 .../net/ethernet/hisilicon/hibmcge/hbg_reg.h  | 143 +++++++
 .../net/ethernet/hisilicon/hibmcge/hbg_txrx.c | 405 ++++++++++++++++++
 .../net/ethernet/hisilicon/hibmcge/hbg_txrx.h |  37 ++
 17 files changed, 1722 insertions(+), 1 deletion(-)
 create mode 100644 drivers/net/ethernet/hisilicon/hibmcge/Makefile
 create mode 100644 drivers/net/ethernet/hisilicon/hibmcge/hbg_common.h
 create mode 100644 drivers/net/ethernet/hisilicon/hibmcge/hbg_ethtool.c
 create mode 100644 drivers/net/ethernet/hisilicon/hibmcge/hbg_ethtool.h
 create mode 100644 drivers/net/ethernet/hisilicon/hibmcge/hbg_hw.c
 create mode 100644 drivers/net/ethernet/hisilicon/hibmcge/hbg_hw.h
 create mode 100644 drivers/net/ethernet/hisilicon/hibmcge/hbg_irq.c
 create mode 100644 drivers/net/ethernet/hisilicon/hibmcge/hbg_irq.h
 create mode 100644 drivers/net/ethernet/hisilicon/hibmcge/hbg_main.c
 create mode 100644 drivers/net/ethernet/hisilicon/hibmcge/hbg_mdio.c
 create mode 100644 drivers/net/ethernet/hisilicon/hibmcge/hbg_mdio.h
 create mode 100644 drivers/net/ethernet/hisilicon/hibmcge/hbg_reg.h
 create mode 100644 drivers/net/ethernet/hisilicon/hibmcge/hbg_txrx.c
 create mode 100644 drivers/net/ethernet/hisilicon/hibmcge/hbg_txrx.h

-- 
2.33.0