[v5,0/4] Handle ARPHRD_NONE devices for siw

Message

Chuck Lever June 29, 2023, 3:16 p.m. UTC

Here's a series that implements support for siw on tunnel devices,
based on suggestions from Jason Gunthorpe and Tom Talpey.

This series does not address a similar issue with rxe because RoCE
GID resolution behaves differently than it does for iWARP devices.
An independent solution is likely to be required for rxe.

Changes since v4:
- Address review comments from Tom Talpey

Changes since v3:
- Clean up RCU dereference in cma_validate_port()

Changes since v2:
- Split into multiple patches
- Pre-initialize gid_attr::ndev for iWARP devices

---

Chuck Lever (4):
      RDMA/siw: Fabricate a GID on tun and loopback devices
      RDMA/core: Set gid_attr.ndev for iWARP devices
      RDMA/cma: Deduplicate error flow in cma_validate_port()
      RDMA/cma: Avoid GID lookups on iWARP devices


 drivers/infiniband/core/cache.c       | 11 +++++++++++
 drivers/infiniband/core/cma.c         | 26 +++++++++++++++++++++-----
 drivers/infiniband/sw/siw/siw.h       |  1 +
 drivers/infiniband/sw/siw/siw_main.c  | 22 ++++++++--------------
 drivers/infiniband/sw/siw/siw_verbs.c |  4 ++--
 5 files changed, 43 insertions(+), 21 deletions(-)

--
Chuck Lever

Comments

Zhu Yanjun July 1, 2023, 9:48 a.m. UTC | #1

在 2023/6/29 23:16, Chuck Lever 写道:
> Here's a series that implements support for siw on tunnel devices,
> based on suggestions from Jason Gunthorpe and Tom Talpey.
>
> This series does not address a similar issue with rxe because RoCE
> GID resolution behaves differently than it does for iWARP devices.
> An independent solution is likely to be required for rxe.

Thanks for letting me know this.

Zhu Yanjun

>
> Changes since v4:
> - Address review comments from Tom Talpey
>
> Changes since v3:
> - Clean up RCU dereference in cma_validate_port()
>
> Changes since v2:
> - Split into multiple patches
> - Pre-initialize gid_attr::ndev for iWARP devices
>
> ---
>
> Chuck Lever (4):
>        RDMA/siw: Fabricate a GID on tun and loopback devices
>        RDMA/core: Set gid_attr.ndev for iWARP devices
>        RDMA/cma: Deduplicate error flow in cma_validate_port()
>        RDMA/cma: Avoid GID lookups on iWARP devices
>
>
>   drivers/infiniband/core/cache.c       | 11 +++++++++++
>   drivers/infiniband/core/cma.c         | 26 +++++++++++++++++++++-----
>   drivers/infiniband/sw/siw/siw.h       |  1 +
>   drivers/infiniband/sw/siw/siw_main.c  | 22 ++++++++--------------
>   drivers/infiniband/sw/siw/siw_verbs.c |  4 ++--
>   5 files changed, 43 insertions(+), 21 deletions(-)
>
> --
> Chuck Lever
>