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

From: Moshe Shemesh
Date: Tue Jan 14 2020 - 10:56:07 EST


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(-)

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1.8.3.1