linux-kernel - [PATCH net-next RFC 0/3] Add mlx5 devices FW upgrade reset support

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Date:   Tue, 14 Jan 2020 17:55:25 +0200
From:   Moshe Shemesh <moshe@...lanox.com>
To:     "David S. Miller" <davem@...emloft.net>
Cc:     Alexander Duyck <alexander.duyck@...il.com>,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        Moshe Shemesh <moshe@...lanox.com>
Subject: [PATCH net-next RFC 0/3] Add mlx5 devices FW upgrade reset support

This patchset adds support for FW upgrade.
On devlink reload, if a pending FW image is found, the driver will perform
a FW upgrade reset flow to activate the pending FW image.

Sending as RFC because the FW activation reset requires a pci link
toggling. Although it works and we verify that the device is the only
device on the pcie bridge before allowing such reset, as already done by
other drivers [1], we would like to get some feedback on the last patch
of this series.

[1] function trigger_sbr() at drivers/infiniband/hw/hfi1/pcie.c

Moshe Shemesh (3):
  net/mlx5: Add structure layout and defines for MFRL register
  net/mlx5: Add functions to set/query MFRL register
  net/mlx5: Add FW upgrade reset support

 drivers/net/ethernet/mellanox/mlx5/core/devlink.c  | 81 +++++++++++++++++++++-
 drivers/net/ethernet/mellanox/mlx5/core/fw.c       | 44 ++++++++++++
 .../net/ethernet/mellanox/mlx5/core/mlx5_core.h    |  2 +
 include/linux/mlx5/driver.h                        |  1 +
 include/linux/mlx5/mlx5_ifc.h                      | 17 +++++
 5 files changed, 144 insertions(+), 1 deletion(-)

-- 
1.8.3.1