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Message-ID: <20250624121315.739049-1-abhijit.gangurde@amd.com>
Date: Tue, 24 Jun 2025 17:43:01 +0530
From: Abhijit Gangurde <abhijit.gangurde@....com>
To: <shannon.nelson@....com>, <brett.creeley@....com>, <davem@...emloft.net>,
<edumazet@...gle.com>, <kuba@...nel.org>, <pabeni@...hat.com>,
<corbet@....net>, <jgg@...pe.ca>, <leon@...nel.org>, <andrew+netdev@...n.ch>
CC: <allen.hubbe@....com>, <nikhil.agarwal@....com>,
<linux-rdma@...r.kernel.org>, <netdev@...r.kernel.org>,
<linux-doc@...r.kernel.org>, <linux-kernel@...r.kernel.org>, Abhijit Gangurde
<abhijit.gangurde@....com>
Subject: [PATCH v3 00/14] Introduce AMD Pensando RDMA driver
This patchset introduces an RDMA driver for the AMD Pensando adapter.
An AMD Pensando Ethernet device with RDMA capabilities extends its
functionality through an auxiliary device.
The first 6 patches of the series modify the ionic Ethernet driver
to support the RDMA driver. The ionic RDMA driver implementation is
split into the remaining 8 patches.
v2->v3
- Used IDA for resource id allocation
- Fixed lockdep warning
- Removed rw locks around xarrays
- Used rdma_user_mmap_* APIs for mappings
- Removed uverbs_cmd_mask
- Registered main ib ops at once
- Fixed sparse checks
- Fixed make htmldocs error
v1->v2
- Removed netdev references from ionic RDMA driver
- Moved to ionic_lif* instead of void* to convey information between
aux devices and drivers
Abhijit Gangurde (14):
net: ionic: Create an auxiliary device for rdma driver
net: ionic: Update LIF identity with additional RDMA capabilities
net: ionic: Export the APIs from net driver to support device commands
net: ionic: Provide RDMA reset support for the RDMA driver
net: ionic: Provide interrupt allocation support for the RDMA driver
net: ionic: Provide doorbell and CMB region information
RDMA: Add IONIC to rdma_driver_id definition
RDMA/ionic: Register auxiliary module for ionic ethernet adapter
RDMA/ionic: Create device queues to support admin operations
RDMA/ionic: Register device ops for control path
RDMA/ionic: Register device ops for datapath
RDMA/ionic: Register device ops for miscellaneous functionality
RDMA/ionic: Implement device stats ops
RDMA/ionic: Add Makefile/Kconfig to kernel build environment
.../device_drivers/ethernet/index.rst | 1 +
.../ethernet/pensando/ionic_rdma.rst | 43 +
MAINTAINERS | 9 +
drivers/infiniband/Kconfig | 1 +
drivers/infiniband/hw/Makefile | 1 +
drivers/infiniband/hw/ionic/Kconfig | 15 +
drivers/infiniband/hw/ionic/Makefile | 9 +
drivers/infiniband/hw/ionic/ionic_admin.c | 1270 ++++++++
.../infiniband/hw/ionic/ionic_controlpath.c | 2714 +++++++++++++++++
drivers/infiniband/hw/ionic/ionic_datapath.c | 1392 +++++++++
drivers/infiniband/hw/ionic/ionic_fw.h | 1029 +++++++
drivers/infiniband/hw/ionic/ionic_hw_stats.c | 484 +++
drivers/infiniband/hw/ionic/ionic_ibdev.c | 452 +++
drivers/infiniband/hw/ionic/ionic_ibdev.h | 521 ++++
drivers/infiniband/hw/ionic/ionic_lif_cfg.c | 128 +
drivers/infiniband/hw/ionic/ionic_lif_cfg.h | 67 +
drivers/infiniband/hw/ionic/ionic_pgtbl.c | 143 +
drivers/infiniband/hw/ionic/ionic_queue.c | 52 +
drivers/infiniband/hw/ionic/ionic_queue.h | 234 ++
drivers/infiniband/hw/ionic/ionic_res.h | 154 +
drivers/net/ethernet/pensando/Kconfig | 1 +
drivers/net/ethernet/pensando/ionic/Makefile | 2 +-
drivers/net/ethernet/pensando/ionic/ionic.h | 7 -
.../net/ethernet/pensando/ionic/ionic_api.h | 131 +
.../net/ethernet/pensando/ionic/ionic_aux.c | 117 +
.../net/ethernet/pensando/ionic/ionic_aux.h | 10 +
.../ethernet/pensando/ionic/ionic_bus_pci.c | 7 +
.../net/ethernet/pensando/ionic/ionic_dev.c | 270 +-
.../net/ethernet/pensando/ionic/ionic_dev.h | 28 +-
.../net/ethernet/pensando/ionic/ionic_if.h | 118 +-
.../net/ethernet/pensando/ionic/ionic_lif.c | 47 +-
.../net/ethernet/pensando/ionic/ionic_lif.h | 3 +
.../net/ethernet/pensando/ionic/ionic_main.c | 4 +-
include/uapi/rdma/ib_user_ioctl_verbs.h | 1 +
include/uapi/rdma/ionic-abi.h | 115 +
35 files changed, 9516 insertions(+), 64 deletions(-)
create mode 100644 Documentation/networking/device_drivers/ethernet/pensando/ionic_rdma.rst
create mode 100644 drivers/infiniband/hw/ionic/Kconfig
create mode 100644 drivers/infiniband/hw/ionic/Makefile
create mode 100644 drivers/infiniband/hw/ionic/ionic_admin.c
create mode 100644 drivers/infiniband/hw/ionic/ionic_controlpath.c
create mode 100644 drivers/infiniband/hw/ionic/ionic_datapath.c
create mode 100644 drivers/infiniband/hw/ionic/ionic_fw.h
create mode 100644 drivers/infiniband/hw/ionic/ionic_hw_stats.c
create mode 100644 drivers/infiniband/hw/ionic/ionic_ibdev.c
create mode 100644 drivers/infiniband/hw/ionic/ionic_ibdev.h
create mode 100644 drivers/infiniband/hw/ionic/ionic_lif_cfg.c
create mode 100644 drivers/infiniband/hw/ionic/ionic_lif_cfg.h
create mode 100644 drivers/infiniband/hw/ionic/ionic_pgtbl.c
create mode 100644 drivers/infiniband/hw/ionic/ionic_queue.c
create mode 100644 drivers/infiniband/hw/ionic/ionic_queue.h
create mode 100644 drivers/infiniband/hw/ionic/ionic_res.h
create mode 100644 drivers/net/ethernet/pensando/ionic/ionic_api.h
create mode 100644 drivers/net/ethernet/pensando/ionic/ionic_aux.c
create mode 100644 drivers/net/ethernet/pensando/ionic/ionic_aux.h
create mode 100644 include/uapi/rdma/ionic-abi.h
--
2.43.0
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