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Date: Tue, 27 Feb 2018 22:50:26 -0500
From: Doug Ledford <dledford@...hat.com>
To: Saeed Mahameed <saeedm@...lanox.com>,
"David S. Miller" <davem@...emloft.net>,
Jason Gunthorpe <jgg@...lanox.com>
Cc: Leon Romanovsky <leonro@...lanox.com>,
Mark Bloch <markb@...lanox.com>,
Or Gerlitz <ogerlitz@...lanox.com>, netdev@...r.kernel.org,
linux-rdma@...r.kernel.org
Subject: Re: [pull request][for-next 00/15] Mellanox, mlx5 RDMA E-Switch
representors 2018-02-23
On Mon, 2018-02-26 at 12:36 -0800, Saeed Mahameed wrote:
> Hi Doug and Dave,
>
> This series includes shared code updates for mlx5 core driver for both
> netdev and rdma subsystems. This series should be pulled to both
> trees so we can continue netdev and rdma specific submissions separately.
>
> For more information please see tag log below.
>
> P.S. We expect one more shared code pull requests.
>
> Since this series contains more work on RDMA than mlx5 eswitch, I would
> like to get Doug's or Jason's approval before pulling it in.
This series looks OK to me, I'm good to pull it in.
> The series doesn't cause any conflict with the latest mlx5 net fixes
> series.
>
> Thanks,
> Saeed.
>
> ---
>
> The following changes since commit 388ca8be00370db132464e27f745b8a0add19fcb:
>
> IB/mlx5: Implement fragmented completion queue (CQ) (2018-02-15 00:30:03 -0800)
>
> are available in the Git repository at:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux.git tags/mlx5-updates-2018-02-23
>
> for you to fetch changes up to ec9c2fb8ceb5b514c4820f732537cb2982de0620:
>
> IB/mlx5: Disable self loopback check when in switchdev mode (2018-02-23 12:36:39 -0800)
>
> ----------------------------------------------------------------
> mlx5-update-2018-02-23 (IB representors)
>
> From: Mark Bloch <markb@...lanox.com>
> =========
> Add IB representor when in switchdev mode
>
> The following series adds support for an IB (RAW Ethernet only) device
> representor which is created when the user switches to switchdev mode.
>
> Today when switching to switchdev mode the only representors which are
> created are net devices. Each netdev is a representor of a virtual
> function and any data sent via the representor is received on the virtual
> function, and any data sent via the virtual function is received by the
> representor.
>
> For the mlx5 driver the main use of this functionality is to be able to
> use Open vSwitch on the hypervisor in order to manage/control traffic
> from/to the virtual functions. Open vSwitch can also work with DPDK
> devices and not just net devices, this series exposes an IB device, which
> Mellanox PMD driver uses, which then can be used by Open vSwitch DPDK.
>
> An IB device representor exposes only RAW Ethernet QP capabilities and
> the ability to create flow rules to direct traffic to its RX queues. The
> state of the IB device (ACTIVE/DOWN etc..) is based on the state of the
> corresponding net device representor. No other RDMA/RoCE functionality is
> currently supported and no GID table is exposed.
> =========
>
> ----------------------------------------------------------------
> Mark Bloch (15):
> net/mlx5: E-Switch, Add callback to get representor device
> net/mlx5: E-Switch, Move representors definition to a global scope
> net/mlx5: E-Switch, Increase number of FTEs in FDB in switchdev mode
> net/mlx5: E-Switch, Optimize HW steering tables in switchdev mode
> net/mlx5: E-Switch, Add definition of IB representor
> IB/mlx5: Add basic regiser/unregister representors code
> IB/mlx5: Allocate flow DB only on PF IB device
> IB/mlx5: Add match on vport when in switchdev mode
> IB/mlx5: Listen to netdev register/unresiter events in switchdev mode
> IB/mlx5: When in switchdev mode, expose only raw packet capabilities
> IB/mlx5: Don't expose MR cache in switchdev mode
> IB/mlx5: E-Switch, Add rule to forward traffic to vport
> IB/mlx5: Add proper representors support
> net/mlx5: E-Switch, Reload IB interface when switching devlink modes
> IB/mlx5: Disable self loopback check when in switchdev mode
>
> drivers/infiniband/hw/mlx5/Makefile | 1 +
> drivers/infiniband/hw/mlx5/ib_rep.c | 189 +++++++++++
> drivers/infiniband/hw/mlx5/ib_rep.h | 72 ++++
> drivers/infiniband/hw/mlx5/main.c | 361 ++++++++++++++++-----
> drivers/infiniband/hw/mlx5/mlx5_ib.h | 32 +-
> drivers/infiniband/hw/mlx5/mr.c | 5 +-
> drivers/infiniband/hw/mlx5/qp.c | 24 ++
> drivers/net/ethernet/mellanox/mlx5/core/dev.c | 8 +
> drivers/net/ethernet/mellanox/mlx5/core/en_rep.c | 11 +
> drivers/net/ethernet/mellanox/mlx5/core/eswitch.c | 23 +-
> drivers/net/ethernet/mellanox/mlx5/core/eswitch.h | 42 +--
> .../ethernet/mellanox/mlx5/core/eswitch_offloads.c | 104 ++++--
> .../net/ethernet/mellanox/mlx5/core/mlx5_core.h | 7 +-
> include/linux/mlx5/driver.h | 6 +
> include/linux/mlx5/eswitch.h | 58 ++++
> 15 files changed, 796 insertions(+), 147 deletions(-)
> create mode 100644 drivers/infiniband/hw/mlx5/ib_rep.c
> create mode 100644 drivers/infiniband/hw/mlx5/ib_rep.h
> create mode 100644 include/linux/mlx5/eswitch.h
--
Doug Ledford <dledford@...hat.com>
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