linux-kernel - [PATCH v4 0/5] Add driver for 1Gbe network chips from MUCSE

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Message-Id: <20250814073855.1060601-1-dong100@mucse.com>
Date: Thu, 14 Aug 2025 15:38:50 +0800
From: Dong Yibo <dong100@...se.com>
To: andrew+netdev@...n.ch,
	davem@...emloft.net,
	edumazet@...gle.com,
	kuba@...nel.org,
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	lukas.bulwahn@...hat.com,
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Cc: netdev@...r.kernel.org,
	linux-doc@...r.kernel.org,
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	dong100@...se.com
Subject: [PATCH v4 0/5] Add driver for 1Gbe network chips from MUCSE

Hi maintainers,

This patch series is v4 to introduce support for MUCSE N500/N210 1Gbps
Ethernet controllers. I divide codes into multiple series, this is the
first one which only register netdev without true tx/rx functions.

The driver has been tested on the following platform:
   - Kernel version: 6.16.0
   - Intel Xeon Processor

Changelog:
v3 -> v4:
  [patch 1/5]:
  1. Remove redundant label.
  2. Simplify 'rnpgbe_init_module' function.
  [patch 2/5]:
  1. Remove 'back' define in structure define.
  2. Remove no-use 'static int bd_number'.
  3. Remove no-use 'pf2fw_mbox_mask' define in 'struct mucse_mbx_info'.  
  [patch 3/5]:
  1. Fix min() is not assigned bug in 'mucse_read_mbx'.
  2. Fix v define to u32 in 'mucse_mbx_reset'.
  3. Use USEC_PER_SEC instead of hardcode.
  [patch 4/5]:
  1. Optimize 'mucse_fw_send_cmd_wait'
  2. Optimize 'struct mbx_fw_cmd_reply' variable declaration.
  3. Fix missing initialization of err in 'mucse_mbx_get_capability'.
  [patch 5/5]:
  1. Optimize 'rnpgbe_get_permanent_mac'.
  2. Remove no-need init netdev->perm_addr.
  3. Remove addr in structure 'mucse_hw'.
  4. Add 'netdev->stats.tx_dropped++' in 'rnpgbe_xmit_frame'.

links:
v3: https://lore.kernel.org/netdev/20250812093937.882045-1-dong100@mucse.com/
v2: https://lore.kernel.org/netdev/20250721113238.18615-1-dong100@mucse.com/
v1: https://lore.kernel.org/netdev/20250703014859.210110-1-dong100@mucse.com/

Dong Yibo (5):
  net: rnpgbe: Add build support for rnpgbe
  net: rnpgbe: Add n500/n210 chip support
  net: rnpgbe: Add basic mbx ops support
  net: rnpgbe: Add basic mbx_fw support
  net: rnpgbe: Add register_netdev

 .../device_drivers/ethernet/index.rst         |   1 +
 .../device_drivers/ethernet/mucse/rnpgbe.rst  |  21 +
 MAINTAINERS                                   |   8 +
 drivers/net/ethernet/Kconfig                  |   1 +
 drivers/net/ethernet/Makefile                 |   1 +
 drivers/net/ethernet/mucse/Kconfig            |  34 ++
 drivers/net/ethernet/mucse/Makefile           |   7 +
 drivers/net/ethernet/mucse/rnpgbe/Makefile    |  11 +
 drivers/net/ethernet/mucse/rnpgbe/rnpgbe.h    | 138 ++++++
 .../net/ethernet/mucse/rnpgbe/rnpgbe_chip.c   | 163 +++++++
 drivers/net/ethernet/mucse/rnpgbe/rnpgbe_hw.h |  15 +
 .../net/ethernet/mucse/rnpgbe/rnpgbe_main.c   | 341 ++++++++++++++
 .../net/ethernet/mucse/rnpgbe/rnpgbe_mbx.c    | 443 ++++++++++++++++++
 .../net/ethernet/mucse/rnpgbe/rnpgbe_mbx.h    |  31 ++
 .../net/ethernet/mucse/rnpgbe/rnpgbe_mbx_fw.c | 264 +++++++++++
 .../net/ethernet/mucse/rnpgbe/rnpgbe_mbx_fw.h | 201 ++++++++
 16 files changed, 1680 insertions(+)
 create mode 100644 Documentation/networking/device_drivers/ethernet/mucse/rnpgbe.rst
 create mode 100644 drivers/net/ethernet/mucse/Kconfig
 create mode 100644 drivers/net/ethernet/mucse/Makefile
 create mode 100644 drivers/net/ethernet/mucse/rnpgbe/Makefile
 create mode 100644 drivers/net/ethernet/mucse/rnpgbe/rnpgbe.h
 create mode 100644 drivers/net/ethernet/mucse/rnpgbe/rnpgbe_chip.c
 create mode 100644 drivers/net/ethernet/mucse/rnpgbe/rnpgbe_hw.h
 create mode 100644 drivers/net/ethernet/mucse/rnpgbe/rnpgbe_main.c
 create mode 100644 drivers/net/ethernet/mucse/rnpgbe/rnpgbe_mbx.c
 create mode 100644 drivers/net/ethernet/mucse/rnpgbe/rnpgbe_mbx.h
 create mode 100644 drivers/net/ethernet/mucse/rnpgbe/rnpgbe_mbx_fw.c
 create mode 100644 drivers/net/ethernet/mucse/rnpgbe/rnpgbe_mbx_fw.h

-- 
2.25.1