| From: |
| Junxian Huang <huangjunxian6-AT-hisilicon.com> |
| To: |
| <jgg-AT-ziepe.ca>, <leon-AT-kernel.org> |
| Subject: |
| [PATCH v2 for-next 0/8] RDMA/hns: Support RoCE bonding |
| Date: |
| Thu, 16 Oct 2025 21:20:15 +0800 |
| Message-ID: |
| <20251016132023.3043538-1-huangjunxian6@hisilicon.com> |
| Cc: |
| <linux-rdma-AT-vger.kernel.org>, <linuxarm-AT-huawei.com>, <huangjunxian6-AT-hisilicon.com>, <tangchengchang-AT-huawei.com> |
| Archive-link: |
| Article |
This series adds support for RoCE bonding. The bond mode is active
when multiple PF netdevs are enslaved to a bond master while all
following rules are met:
* All the slaves are on the same card, i.e., they share the same
bus number.
* The bond mode are set to mode 1 (active-backup), 2 (XOR) or
4 (802.3ad).
* None of the slaves have generated a VF.
In bond mode, a bond ibdev "hns_bond_*" is registered instead of the
regular PF ibdev "hns_*". For RoCE traffic, HW chooses the same active
port as netdev bonding in mode 1, while in mode 2/4, the port selection
is determined by the hash algorithm.
v1 -> v2:
https://lore.kernel.org/linux-rdma/20250913090615.212720-...
* Hold the refcount when returning from hns_roce_get_hrdev_by_netdev()
and get_upper_dev_from_ndev().
* Remove check_vf_support() as we've moved the check into FW now.
Junxian Huang (8):
RDMA/hns: Add helpers to obtain netdev and bus_num from hr_dev
RDMA/hns: Initialize bonding resources
RDMA/hns: Add bonding event handler
RDMA/hns: Add bonding cmds
RDMA/hns: Implement bonding init/uninit process
RDMA/hns: Add delayed work for bonding
RDMA/hns: Support link state reporting for bond
RDMA/hns: Support reset recovery for bond
drivers/infiniband/hw/hns/Makefile | 4 +-
drivers/infiniband/hw/hns/hns_roce_ah.c | 1 -
drivers/infiniband/hw/hns/hns_roce_bond.c | 1012 +++++++++++++++++++
drivers/infiniband/hw/hns/hns_roce_bond.h | 95 ++
drivers/infiniband/hw/hns/hns_roce_device.h | 16 +-
drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 143 ++-
drivers/infiniband/hw/hns/hns_roce_hw_v2.h | 20 +
drivers/infiniband/hw/hns/hns_roce_main.c | 176 +++-
drivers/infiniband/hw/hns/hns_roce_pd.c | 1 -
drivers/infiniband/hw/hns/hns_roce_qp.c | 5 +-
drivers/infiniband/hw/hns/hns_roce_srq.c | 1 -
11 files changed, 1422 insertions(+), 52 deletions(-)
create mode 100644 drivers/infiniband/hw/hns/hns_roce_bond.c
create mode 100644 drivers/infiniband/hw/hns/hns_roce_bond.h
--
2.33.0
