Add support for device firmware flash on mlxsw spectrum. The firmware files
are expected to be in the Mellanox Firmware Archive version 2 (MFA2)
format.

The firmware flash can be triggered via "ethtool -f" or on driver initialization
time if the device firmware version does not meet the minimum firmware
version supported by the driver.

Currently, to activate the newly flashed firmware, the user needs to reboot
his system.

The first patch introduces the mlxfw module, which implements common
logic needed for the firmware flash process on Mellanox products, such as
the
MFA2 format parsing and the firmware flash state machine logic. As the
module implements common logic which will be needed by various different
Mellanox drivers, it defines a set of callbacks needed to interact with the
specific device.

Patches 1-5 implement the needed mlxfw callbacks in the mlxsw spectrum
driver.

Patches 6-8 add the "ethtool -f" and the boot-time firmware upgrade on the
mlxsw spectrum driver.

When we tried using `ethtool -E' for qed we got burned for trying to use the magic
value [1]. When we suggested extending it to allow some private data indications,
Ben claimed that this entire ethtool infrastructure is a thing of the past,
and we should try using MTD instead - a claim no one bothered to counter.

Creating proprietary file-formats, filling them with metadata and
complementary driver state-machines could easily overcome the original
obstacle we faced. But it raises the question of whether these APIs are
valid or obsolete.

[1] http://marc.info/?l=linux-netdev&m=146093513926921&w=4
[2] http://marc.info/?l=linux-netdev&m=146514461214421&w=2

Patch 9 adds a fix needed for new firmware versions.

Ido Schimmel (1):
  mlxsw: spectrum_router: Adjust RIF configuration for new firmware
    versions

Yotam Gigi (8):
  Add the mlxfw module for Mellanox firmware flash process
  mlxsw: reg: Add Management Component Query Information register
  mlxsw: reg: Add Management Component Control register
  mlxsw: reg: Add Management Component Data Access register
  mlxsw: spectrum: Add the needed callbacks for mlxfw integration
  mlxsw: spectrum: Implement the ethtool flash_device callback
  mlxsw: core: Create the mlxsw_fw_rev struct
  mlxsw: spectrum: Validate firmware revision on init

 MAINTAINERS                                        |   8 +
 drivers/net/ethernet/mellanox/Kconfig              |   1 +
 drivers/net/ethernet/mellanox/Makefile             |   1 +
 drivers/net/ethernet/mellanox/mlxfw/Kconfig        |   6 +
 drivers/net/ethernet/mellanox/mlxfw/Makefile       |   2 +
 drivers/net/ethernet/mellanox/mlxfw/mlxfw.h        | 102 ++++
 drivers/net/ethernet/mellanox/mlxfw/mlxfw_fsm.c    | 273 +++++++++
 drivers/net/ethernet/mellanox/mlxfw/mlxfw_mfa2.c   | 620
+++++++++++++++++++++
 drivers/net/ethernet/mellanox/mlxfw/mlxfw_mfa2.h   |  66 +++
 .../net/ethernet/mellanox/mlxfw/mlxfw_mfa2_file.h  |  60 ++
 .../ethernet/mellanox/mlxfw/mlxfw_mfa2_format.h    | 103 ++++
 .../net/ethernet/mellanox/mlxfw/mlxfw_mfa2_tlv.h   |  98 ++++
 .../ethernet/mellanox/mlxfw/mlxfw_mfa2_tlv_multi.c | 126 +++++
.../ethernet/mellanox/mlxfw/mlxfw_mfa2_tlv_multi.h |  71 +++
 drivers/net/ethernet/mellanox/mlxsw/Kconfig        |   1 +
 drivers/net/ethernet/mellanox/mlxsw/core.h         |  12 +-
 drivers/net/ethernet/mellanox/mlxsw/reg.h          | 219 ++++++++
 drivers/net/ethernet/mellanox/mlxsw/spectrum.c     | 266 +++++++++
 .../net/ethernet/mellanox/mlxsw/spectrum_router.c  |  22 +
 19 files changed, 2052 insertions(+), 5 deletions(-)  create mode 100644
drivers/net/ethernet/mellanox/mlxfw/Kconfig
 create mode 100644 drivers/net/ethernet/mellanox/mlxfw/Makefile
 create mode 100644 drivers/net/ethernet/mellanox/mlxfw/mlxfw.h
 create mode 100644 drivers/net/ethernet/mellanox/mlxfw/mlxfw_fsm.c
 create mode 100644 drivers/net/ethernet/mellanox/mlxfw/mlxfw_mfa2.c
 create mode 100644 drivers/net/ethernet/mellanox/mlxfw/mlxfw_mfa2.h
 create mode 100644
drivers/net/ethernet/mellanox/mlxfw/mlxfw_mfa2_file.h
 create mode 100644
drivers/net/ethernet/mellanox/mlxfw/mlxfw_mfa2_format.h
 create mode 100644
drivers/net/ethernet/mellanox/mlxfw/mlxfw_mfa2_tlv.h
 create mode 100644
drivers/net/ethernet/mellanox/mlxfw/mlxfw_mfa2_tlv_multi.c
 create mode 100644
drivers/net/ethernet/mellanox/mlxfw/mlxfw_mfa2_tlv_multi.h

--
2.9.3