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eea: Add basic driver framework for Alibaba Elastic Ethernet Adaptor

From:  Xuan Zhuo <xuanzhuo-AT-linux.alibaba.com>
To:  netdev-AT-vger.kernel.org
Subject:  [PATCH net-next v8 0/5] eea: Add basic driver framework for Alibaba Elastic Ethernet Adaptor
Date:  Thu, 23 Oct 2025 13:52:34 +0800
Message-ID:  <20251023055239.89991-1-xuanzhuo@linux.alibaba.com>
Cc:  Andrew Lunn <andrew+netdev-AT-lunn.ch>, "David S. Miller" <davem-AT-davemloft.net>, Eric Dumazet <edumazet-AT-google.com>, Jakub Kicinski <kuba-AT-kernel.org>, Paolo Abeni <pabeni-AT-redhat.com>, Xuan Zhuo <xuanzhuo-AT-linux.alibaba.com>, Wen Gu <guwen-AT-linux.alibaba.com>, Philo Lu <lulie-AT-linux.alibaba.com>, Lorenzo Bianconi <lorenzo-AT-kernel.org>, Vadim Fedorenko <vadim.fedorenko-AT-linux.dev>, Lukas Bulwahn <lukas.bulwahn-AT-redhat.com>, Geert Uytterhoeven <geert+renesas-AT-glider.be>, Vivian Wang <wangruikang-AT-iscas.ac.cn>, Troy Mitchell <troy.mitchell-AT-linux.spacemit.com>, Dust Li <dust.li-AT-linux.alibaba.com>
Archive-link:  Article

Add a driver framework for EEA that will be available in the future.

This driver is currently quite minimal, implementing only fundamental
core functionalities. Key features include: I/O queue management via
adminq, basic PCI-layer operations, and essential RX/TX data
communication capabilities. It also supports the creation,
initialization, and management of network devices (netdev). Furthermore,
the ring structures for both I/O queues and adminq have been abstracted
into a simple, unified, and reusable library implementation,
facilitating future extension and maintenance.


v8: 1. rename eea_net_tmp to eea_net_init_ctx
    2. rm code that allocs memory to destroy queues
    3. some other minor changes
v7: 1. remove the irrelative code from ethtool commit
    2. build every commits with W12
v6: Split the big one commit to five commits
v5: Thanks for the comments from Kalesh Anakkur Purayil, ALOK TIWARI
v4: Thanks for the comments from Troy Mitchell, Przemek Kitszel, Andrew Lunn, Kalesh Anakkur Purayil
v3: Thanks for the comments from Paolo Abenchi
v2: Thanks for the comments from Simon Horman and Andrew Lunn
v1: Thanks for the comments from Simon Horman and Andrew Lunn



Xuan Zhuo (5):
  eea: introduce PCI framework
  eea: introduce ring and descriptor structures
  eea: probe the netdevice and create adminq
  eea: create/destroy rx,tx queues for netdevice open and stop
  eea: introduce ethtool support

 MAINTAINERS                                   |   8 +
 drivers/net/ethernet/Kconfig                  |   1 +
 drivers/net/ethernet/Makefile                 |   1 +
 drivers/net/ethernet/alibaba/Kconfig          |  29 +
 drivers/net/ethernet/alibaba/Makefile         |   5 +
 drivers/net/ethernet/alibaba/eea/Makefile     |   9 +
 drivers/net/ethernet/alibaba/eea/eea_adminq.c | 421 ++++++++++
 drivers/net/ethernet/alibaba/eea/eea_adminq.h |  70 ++
 drivers/net/ethernet/alibaba/eea/eea_desc.h   | 156 ++++
 .../net/ethernet/alibaba/eea/eea_ethtool.c    | 311 +++++++
 .../net/ethernet/alibaba/eea/eea_ethtool.h    |  51 ++
 drivers/net/ethernet/alibaba/eea/eea_net.c    | 572 +++++++++++++
 drivers/net/ethernet/alibaba/eea/eea_net.h    | 196 +++++
 drivers/net/ethernet/alibaba/eea/eea_pci.c    | 587 +++++++++++++
 drivers/net/ethernet/alibaba/eea/eea_pci.h    |  67 ++
 drivers/net/ethernet/alibaba/eea/eea_ring.c   | 260 ++++++
 drivers/net/ethernet/alibaba/eea/eea_ring.h   |  91 ++
 drivers/net/ethernet/alibaba/eea/eea_rx.c     | 786 ++++++++++++++++++
 drivers/net/ethernet/alibaba/eea/eea_tx.c     | 406 +++++++++
 19 files changed, 4027 insertions(+)
 create mode 100644 drivers/net/ethernet/alibaba/Kconfig
 create mode 100644 drivers/net/ethernet/alibaba/Makefile
 create mode 100644 drivers/net/ethernet/alibaba/eea/Makefile
 create mode 100644 drivers/net/ethernet/alibaba/eea/eea_adminq.c
 create mode 100644 drivers/net/ethernet/alibaba/eea/eea_adminq.h
 create mode 100644 drivers/net/ethernet/alibaba/eea/eea_desc.h
 create mode 100644 drivers/net/ethernet/alibaba/eea/eea_ethtool.c
 create mode 100644 drivers/net/ethernet/alibaba/eea/eea_ethtool.h
 create mode 100644 drivers/net/ethernet/alibaba/eea/eea_net.c
 create mode 100644 drivers/net/ethernet/alibaba/eea/eea_net.h
 create mode 100644 drivers/net/ethernet/alibaba/eea/eea_pci.c
 create mode 100644 drivers/net/ethernet/alibaba/eea/eea_pci.h
 create mode 100644 drivers/net/ethernet/alibaba/eea/eea_ring.c
 create mode 100644 drivers/net/ethernet/alibaba/eea/eea_ring.h
 create mode 100644 drivers/net/ethernet/alibaba/eea/eea_rx.c
 create mode 100644 drivers/net/ethernet/alibaba/eea/eea_tx.c

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2.32.0.3.g01195cf9f




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