[PATCH v1 00/15] Yunsilicon XSC ethernet and RDMA drivers
From: Xin Tian
Date: Wed Nov 04 2026 - 11:06:12 EST
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@xxxxxxxxxxxxxx/):
- 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
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2.18.4