[PATCH rdma-next 0/4] RDMA/mana_ib: allow separate mana_ib for each mana client

Konstantin Taranov
2025-04-14T18:28:49Z

Microsoft mana adapter has 2 devices in the HW: mana ethernet device and RNIC device.
Both devices can implement RDMA drivers and, so far, they have been sharing
one ib device context. However, they are different devices with different
capabilities in the HW and have different lifetime model.

This series allows us to model the aforementioned two devices as separate ib devices.
The mana_ib will continue supporting two devices but as individual ib devices.
It enables the driver to dynamically destroy and create the auxiliary device over
RNIC, when the HW reboots the RNIC module. Without this separation, the reboot
would cause destruction of the ib device serving DPDK clients from the uninterrupted
ethernet HW module.

This patch series depend on the patch "RDMA/mana_ib: Add support of 4M, 1G, and 2G pages".

Konstantin Taranov (3):
net: mana: Probe rdma device in mana driver
RDMA/mana_ib: Add support of mana_ib for RNIC and ETH nic
RDMA/mana_ib: unify mana_ib functions to support any gdma device

Shiraz Saleem (1):
net: mana: Add support for auxiliary device servicing events

drivers/infiniband/hw/mana/cq.c | 4 +-
drivers/infiniband/hw/mana/device.c | 174 +++++++++---------
drivers/infiniband/hw/mana/main.c | 77 ++++++--
drivers/infiniband/hw/mana/mana_ib.h | 6 +
drivers/infiniband/hw/mana/qp.c | 5 +-
.../net/ethernet/microsoft/mana/gdma_main.c | 27 ++-
.../net/ethernet/microsoft/mana/hw_channel.c | 19 ++
drivers/net/ethernet/microsoft/mana/mana_en.c | 99 +++++++++-
include/net/mana/gdma.h | 18 ++
include/net/mana/hw_channel.h | 9 +
include/net/mana/mana.h | 3 +
11 files changed, 320 insertions(+), 121 deletions(-)

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2.43.0