[PATCH v1 00/15] Yunsilicon XSC ethernet and RDMA drivers

From
Xin Tian <hidden>
Date
2026-11-04 15:57:44
Also in
linux-rdma, lkml
Hi all,

This is a new submission from Yunsilicon to upstream our converged
network adapter driver.  The hardware is a dual-function PCIe device
(PCI vendor 0x1f67) that supports both ethernet and RDMA operations.

The series adds three drivers, which share the xsc prefix.  A shared PCI
core driver binds to the physical function, brings up the command queue,
the event queues and the interrupt handling, and publishes one auxiliary
device per function.  The ethernet and RDMA drivers bind to that
auxiliary device instead of driving the PCI function themselves, so the
two personalities share a single probe and resource set.

  1. xsc_pci - the PCI core driver (CONFIG_YUNSILICON_XSC_PCI).
     Owns the PCI function, the command queue, the event queues, the
     interrupt vectors, the register access layer and the CQ/QP/SRQ
     resource pools.  Patches 02-06.

  2. xsc_eth - the ethernet driver (CONFIG_YUNSILICON_XSC_ETH).
     Registers the netdev, implements the TX/RX packet paths with NAPI
     and page_pool, RSS, checksum offloads and statistics.  Patches
     07-09, on top of the core.

  3. xsc_ib - the RDMA driver (CONFIG_INFINIBAND_XSC).
     Registers the ib_device and provides the PD/MR, CQ/SRQ/AH and QP
     verbs including the send/receive data paths, plus RDMA counters and
     sysfs attributes.  Patches 10-15, on top of the core and the
     ethernet driver (the netdev supplies port state and GID).

Patch 01 adds the MAINTAINERS entry.

The series is split so that every commit builds: the core patches
introduce the register access, the command queue, the event queues and
the resource pools incrementally, and the ethernet and RDMA patches only
start creating queues once their dependencies are in place.  Patch 06
(core CQ/QP pools) is deliberately shared by both upper drivers; that is
why it precedes the ethernet patches.

The RDMA device is registered at patch 10, before all verbs exist, so
kverbs_provider stays false until the last mandatory verb (post_send)
appears in patch 14.  This keeps each intermediate tree compilable.

Please review.

Thanks,
Xin Tian

Changes since v0 (https://lore.kernel.org/netdev/20261012114352.2471317-1-tianx@yunsilicon.com/ (local)):
- Register access helpers take explicit u32 values instead of void *
  and memcpy (patch 3).
- Dropped the one-line xsc_free_cmd() wrapper (patch 4).
- Dropped the redundant memsets and comments in query_device, the
  redundant rdma_roce_rescan_device() call and stray blank lines
  (patch 10).
- Derived port state with ib_get_curr_port_state() and MTU with
  iboe_get_mtu() instead of open-coding both (patch 10).
- Replaced the driver's get_netdev op and netdevice notifier with
  ib_device_set_netdev() and the core's event handling (patch 10).
- Stopped replicating the core's private ib_mad structures (patch 10).
- Ran Sashiko locally and fixed or triaged the findings.

Xin Tian (15):
  MAINTAINERS: add the Yunsilicon XSC drivers
  net/xsc: add PCI core driver skeleton
  net/xsc: add the register HAL
  net/xsc: add the command queue
  net/xsc: add event queues, interrupts and the auxiliary bus
  net/xsc: add the CQ and QP resource pools
  net/xsc: add ethernet netdev registration
  net/xsc: add ethernet TX path
  net/xsc: add ethernet RX path and statistics
  RDMA/xsc: add RDMA device support
  RDMA/xsc: add RDMA PD/MR
  RDMA/xsc: add RDMA CQ/SRQ/AH
  RDMA/xsc: add QP verbs
  RDMA/xsc: add the RDMA send path
  RDMA/xsc: add RDMA counters and sysfs

 MAINTAINERS                                   |    9 +
 drivers/infiniband/Kconfig                    |    1 +
 drivers/infiniband/hw/Makefile                |    1 +
 drivers/infiniband/hw/xsc/Kconfig             |   17 +
 drivers/infiniband/hw/xsc/Makefile            |   10 +
 drivers/infiniband/hw/xsc/ah.c                |  144 +
 drivers/infiniband/hw/xsc/counters.c          |  134 +
 drivers/infiniband/hw/xsc/cq.c                |  954 +++++++
 drivers/infiniband/hw/xsc/main.c              |  801 ++++++
 drivers/infiniband/hw/xsc/mem.c               |  160 ++
 drivers/infiniband/hw/xsc/mr.c                |  335 +++
 drivers/infiniband/hw/xsc/qp.c                | 2347 +++++++++++++++++
 drivers/infiniband/hw/xsc/srq.c               |  462 ++++
 drivers/infiniband/hw/xsc/xsc_ib.h            |  489 ++++
 drivers/infiniband/hw/xsc/xsc_ib_sysfs.c      |   50 +
 drivers/net/ethernet/Kconfig                  |    1 +
 drivers/net/ethernet/Makefile                 |    1 +
 drivers/net/ethernet/yunsilicon/Kconfig       |   26 +
 drivers/net/ethernet/yunsilicon/Makefile      |    8 +
 .../net/ethernet/yunsilicon/xsc/common/cq.h   |   26 +
 .../ethernet/yunsilicon/xsc/common/driver.h   |   95 +
 .../net/ethernet/yunsilicon/xsc/common/qp.h   |  104 +
 .../net/ethernet/yunsilicon/xsc/common/srq.h  |   54 +
 .../ethernet/yunsilicon/xsc/common/xsc_cmd.h  | 1025 +++++++
 .../yunsilicon/xsc/common/xsc_cmd_api.h       |   25 +
 .../ethernet/yunsilicon/xsc/common/xsc_cmdq.h |  192 ++
 .../ethernet/yunsilicon/xsc/common/xsc_core.h |  663 +++++
 .../yunsilicon/xsc/common/xsc_device.h        |   94 +
 .../ethernet/yunsilicon/xsc/common/xsc_hsi.h  |  123 +
 .../ethernet/yunsilicon/xsc/common/xsc_reg.h  |   28 +
 .../net/ethernet/yunsilicon/xsc/net/Kconfig   |   17 +
 .../net/ethernet/yunsilicon/xsc/net/Makefile  |    9 +
 .../net/ethernet/yunsilicon/xsc/net/main.c    | 1742 ++++++++++++
 .../net/ethernet/yunsilicon/xsc/net/xsc_eth.h |   43 +
 .../yunsilicon/xsc/net/xsc_eth_common.h       |  123 +
 .../ethernet/yunsilicon/xsc/net/xsc_eth_rx.c  |  556 ++++
 .../yunsilicon/xsc/net/xsc_eth_stats.c        |   40 +
 .../yunsilicon/xsc/net/xsc_eth_stats.h        |   35 +
 .../ethernet/yunsilicon/xsc/net/xsc_eth_tx.c  |  345 +++
 .../yunsilicon/xsc/net/xsc_eth_txrx.c         |  156 ++
 .../yunsilicon/xsc/net/xsc_eth_txrx.h         |   92 +
 .../ethernet/yunsilicon/xsc/net/xsc_eth_wq.c  |   80 +
 .../ethernet/yunsilicon/xsc/net/xsc_eth_wq.h  |  185 ++
 .../net/ethernet/yunsilicon/xsc/net/xsc_pp.h  |   38 +
 .../net/ethernet/yunsilicon/xsc/net/xsc_pph.h |   42 +
 .../ethernet/yunsilicon/xsc/net/xsc_queue.h   |  183 ++
 .../net/ethernet/yunsilicon/xsc/pci/Kconfig   |   15 +
 .../net/ethernet/yunsilicon/xsc/pci/Makefile  |   10 +
 .../net/ethernet/yunsilicon/xsc/pci/adev.c    |  142 +
 .../net/ethernet/yunsilicon/xsc/pci/adev.h    |   17 +
 .../net/ethernet/yunsilicon/xsc/pci/alloc.c   |  237 ++
 .../net/ethernet/yunsilicon/xsc/pci/alloc.h   |   17 +
 .../net/ethernet/yunsilicon/xsc/pci/cmdq.c    | 1244 +++++++++
 drivers/net/ethernet/yunsilicon/xsc/pci/cq.c  |  319 +++
 drivers/net/ethernet/yunsilicon/xsc/pci/cq.h  |   17 +
 drivers/net/ethernet/yunsilicon/xsc/pci/eq.c  |  318 +++
 drivers/net/ethernet/yunsilicon/xsc/pci/eq.h  |   39 +
 .../yunsilicon/xsc/pci/hal/andes_impl.c       |  629 +++++
 .../yunsilicon/xsc/pci/hal/andes_reg.h        |   43 +
 .../ethernet/yunsilicon/xsc/pci/hal/xsc_hal.h |   60 +
 drivers/net/ethernet/yunsilicon/xsc/pci/hw.c  |  316 +++
 drivers/net/ethernet/yunsilicon/xsc/pci/hw.h  |   18 +
 .../net/ethernet/yunsilicon/xsc/pci/link.c    |   34 +
 .../net/ethernet/yunsilicon/xsc/pci/main.c    |  350 +++
 drivers/net/ethernet/yunsilicon/xsc/pci/mr.c  |  202 ++
 drivers/net/ethernet/yunsilicon/xsc/pci/mr.h  |   18 +
 .../net/ethernet/yunsilicon/xsc/pci/pci_irq.c |  493 ++++
 .../net/ethernet/yunsilicon/xsc/pci/pci_irq.h |   18 +
 drivers/net/ethernet/yunsilicon/xsc/pci/pd.c  |   49 +
 drivers/net/ethernet/yunsilicon/xsc/pci/pd.h  |   14 +
 drivers/net/ethernet/yunsilicon/xsc/pci/qp.c  |  355 +++
 drivers/net/ethernet/yunsilicon/xsc/pci/qp.h  |   28 +
 drivers/net/ethernet/yunsilicon/xsc/pci/srq.c |   92 +
 drivers/net/ethernet/yunsilicon/xsc/pci/srq.h |   16 +
 .../net/ethernet/yunsilicon/xsc/pci/vport.c   |   36 +
 include/uapi/rdma/ib_user_ioctl_verbs.h       |    1 +
 include/uapi/rdma/xsc-abi.h                   |  290 ++
 77 files changed, 17502 insertions(+)
 create mode 100644 drivers/infiniband/hw/xsc/Kconfig
 create mode 100644 drivers/infiniband/hw/xsc/Makefile
 create mode 100644 drivers/infiniband/hw/xsc/ah.c
 create mode 100644 drivers/infiniband/hw/xsc/counters.c
 create mode 100644 drivers/infiniband/hw/xsc/cq.c
 create mode 100644 drivers/infiniband/hw/xsc/main.c
 create mode 100644 drivers/infiniband/hw/xsc/mem.c
 create mode 100644 drivers/infiniband/hw/xsc/mr.c
 create mode 100644 drivers/infiniband/hw/xsc/qp.c
 create mode 100644 drivers/infiniband/hw/xsc/srq.c
 create mode 100644 drivers/infiniband/hw/xsc/xsc_ib.h
 create mode 100644 drivers/infiniband/hw/xsc/xsc_ib_sysfs.c
 create mode 100644 drivers/net/ethernet/yunsilicon/Kconfig
 create mode 100644 drivers/net/ethernet/yunsilicon/Makefile
 create mode 100644 drivers/net/ethernet/yunsilicon/xsc/common/cq.h
 create mode 100644 drivers/net/ethernet/yunsilicon/xsc/common/driver.h
 create mode 100644 drivers/net/ethernet/yunsilicon/xsc/common/qp.h
 create mode 100644 drivers/net/ethernet/yunsilicon/xsc/common/srq.h
 create mode 100644 drivers/net/ethernet/yunsilicon/xsc/common/xsc_cmd.h
 create mode 100644 drivers/net/ethernet/yunsilicon/xsc/common/xsc_cmd_api.h
 create mode 100644 drivers/net/ethernet/yunsilicon/xsc/common/xsc_cmdq.h
 create mode 100644 drivers/net/ethernet/yunsilicon/xsc/common/xsc_core.h
 create mode 100644 drivers/net/ethernet/yunsilicon/xsc/common/xsc_device.h
 create mode 100644 drivers/net/ethernet/yunsilicon/xsc/common/xsc_hsi.h
 create mode 100644 drivers/net/ethernet/yunsilicon/xsc/common/xsc_reg.h
 create mode 100644 drivers/net/ethernet/yunsilicon/xsc/net/Kconfig
 create mode 100644 drivers/net/ethernet/yunsilicon/xsc/net/Makefile
 create mode 100644 drivers/net/ethernet/yunsilicon/xsc/net/main.c
 create mode 100644 drivers/net/ethernet/yunsilicon/xsc/net/xsc_eth.h
 create mode 100644 drivers/net/ethernet/yunsilicon/xsc/net/xsc_eth_common.h
 create mode 100644 drivers/net/ethernet/yunsilicon/xsc/net/xsc_eth_rx.c
 create mode 100644 drivers/net/ethernet/yunsilicon/xsc/net/xsc_eth_stats.c
 create mode 100644 drivers/net/ethernet/yunsilicon/xsc/net/xsc_eth_stats.h
 create mode 100644 drivers/net/ethernet/yunsilicon/xsc/net/xsc_eth_tx.c
 create mode 100644 drivers/net/ethernet/yunsilicon/xsc/net/xsc_eth_txrx.c
 create mode 100644 drivers/net/ethernet/yunsilicon/xsc/net/xsc_eth_txrx.h
 create mode 100644 drivers/net/ethernet/yunsilicon/xsc/net/xsc_eth_wq.c
 create mode 100644 drivers/net/ethernet/yunsilicon/xsc/net/xsc_eth_wq.h
 create mode 100644 drivers/net/ethernet/yunsilicon/xsc/net/xsc_pp.h
 create mode 100644 drivers/net/ethernet/yunsilicon/xsc/net/xsc_pph.h
 create mode 100644 drivers/net/ethernet/yunsilicon/xsc/net/xsc_queue.h
 create mode 100644 drivers/net/ethernet/yunsilicon/xsc/pci/Kconfig
 create mode 100644 drivers/net/ethernet/yunsilicon/xsc/pci/Makefile
 create mode 100644 drivers/net/ethernet/yunsilicon/xsc/pci/adev.c
 create mode 100644 drivers/net/ethernet/yunsilicon/xsc/pci/adev.h
 create mode 100644 drivers/net/ethernet/yunsilicon/xsc/pci/alloc.c
 create mode 100644 drivers/net/ethernet/yunsilicon/xsc/pci/alloc.h
 create mode 100644 drivers/net/ethernet/yunsilicon/xsc/pci/cmdq.c
 create mode 100644 drivers/net/ethernet/yunsilicon/xsc/pci/cq.c
 create mode 100644 drivers/net/ethernet/yunsilicon/xsc/pci/cq.h
 create mode 100644 drivers/net/ethernet/yunsilicon/xsc/pci/eq.c
 create mode 100644 drivers/net/ethernet/yunsilicon/xsc/pci/eq.h
 create mode 100644 drivers/net/ethernet/yunsilicon/xsc/pci/hal/andes_impl.c
 create mode 100644 drivers/net/ethernet/yunsilicon/xsc/pci/hal/andes_reg.h
 create mode 100644 drivers/net/ethernet/yunsilicon/xsc/pci/hal/xsc_hal.h
 create mode 100644 drivers/net/ethernet/yunsilicon/xsc/pci/hw.c
 create mode 100644 drivers/net/ethernet/yunsilicon/xsc/pci/hw.h
 create mode 100644 drivers/net/ethernet/yunsilicon/xsc/pci/link.c
 create mode 100644 drivers/net/ethernet/yunsilicon/xsc/pci/main.c
 create mode 100644 drivers/net/ethernet/yunsilicon/xsc/pci/mr.c
 create mode 100644 drivers/net/ethernet/yunsilicon/xsc/pci/mr.h
 create mode 100644 drivers/net/ethernet/yunsilicon/xsc/pci/pci_irq.c
 create mode 100644 drivers/net/ethernet/yunsilicon/xsc/pci/pci_irq.h
 create mode 100644 drivers/net/ethernet/yunsilicon/xsc/pci/pd.c
 create mode 100644 drivers/net/ethernet/yunsilicon/xsc/pci/pd.h
 create mode 100644 drivers/net/ethernet/yunsilicon/xsc/pci/qp.c
 create mode 100644 drivers/net/ethernet/yunsilicon/xsc/pci/qp.h
 create mode 100644 drivers/net/ethernet/yunsilicon/xsc/pci/srq.c
 create mode 100644 drivers/net/ethernet/yunsilicon/xsc/pci/srq.h
 create mode 100644 drivers/net/ethernet/yunsilicon/xsc/pci/vport.c
 create mode 100644 include/uapi/rdma/xsc-abi.h

-- 
2.18.4
Thread (18 messages) 18 messages, 3 authors, last reply 3d ago
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