netdev - [PATCH net-next v2 0/9] Altera Triple Speed Ethernet (TSE) Driver

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Message-Id: <1394493277-2105-1-git-send-email-vbridgers2013@gmail.com>
Date:	Mon, 10 Mar 2014 18:14:28 -0500
From:	Vince Bridgers <vbridgers2013@...il.com>
To:	devicetree@...r.kernel.org, netdev@...r.kernel.org,
	linux-doc@...r.kernel.org
Cc:	robh+dt@...nel.org, pawel.moll@....com, mark.rutland@....com,
	ijc+devicetree@...lion.org.uk, galak@...eaurora.org,
	rob@...dley.net, vbridgers2013@...il.com
Subject: [PATCH net-next v2 0/9] Altera Triple Speed Ethernet (TSE) Driver 

V2: Address comments from initial RFC review.
    - The driver files were broken up by major sections of functionality.
      These include MSGDMA, SGDMA, Misc, and Main. 
    - Add patch for MAINTAINERS file, add the maintainer for this submission
    - Use 32-bit lower/upper physical address accessor functions so the driver
      is 64-bit ready.
    - Use standard bindings where applicable. Especially phy-addr, and change
      "altr,rx-fifo-depth" to "rx-fifo-depth" and "altr,tx-fifo-depth" to 
      "tx-fifo-depth".
    - Add use of max-frame-size property
    - Update bindings documents accordingly
    - Correct interrupt handler to use budget parameter in the convential way
    - Use macros consistently to define bit fields across files
    - Correct include exclusion macro in altera_msgdmahw.h (typo)
    - Remove use of barriers, these were not necessary since the DMA APIs
      ensure memory & buffer consistency
    - Remove use of netif_carrier_off in driver
    - move probing of phy from the open function to the probe function
    - use of_get_phy_mode instead of custom function
    - Use the .data field in the device structure to obtain a pointer
      to SGDMA or MSGDMA device specific properties and functions. 
    - remove custom function to access devicetree since Altera specific
      bindings requiring it's use have been deprecated in favor of 
      standard bindings. 

The Altera TSE is a 10/100/1000 Mbps Ethernet soft IP component that can be
configured and synthesized using Quartus, and programmed into Altera FPGAs.
Two types of soft DMA IP components are supported by this driver - the Altera
SGDMA and the MSGDMA. The MSGDMA DMA component is preferred over the SGDMA,
since the SGDMA will be deprecated in favor of the MSGDMA. Software supporting
both is provided for customers still using the SGDMA and to demonstrate how
multiple types of DMA engines may be supported by the TSE driver in the event
customers wish to develop their own custom soft DMA engine for particular
applications.

The design has been tested on Altera's Cyclone 4, 5, and Cyclone 5 SOC
development kits using an ARM A9 processor and an Altera NIOS2 processor.
Differences in CPU/DMA coherency management and address alignment are
addressed by proper use of driver APIs and semantics.

Patch 1/9 is for the MAINTAINERS modifications. Patch 2/9 is for the changes
required to the drivers/net/ethernet build files. Patches 3 and 4 are for the 
driver bindings and documentation. The remainder of the patches are for the
Altera Triple Speed Ethernet driver broken up by logical function, such as
build files, SGDMA, MSGDMA, Miscellaneous files, and the main driver source 
and header file. 

Thank you for the constructive comments so far, and I look forward to
completing this process.

Vince 

Vince Bridgers (9):
  MAINTAINERS: Add entry for Altera Triple Speed Ethernet Driver
  net: ethernet: Change Ethernet Makefile and Kconfig for Altera TSE
    driver
  dts: Add bindings for the Altera Triple Speed Ethernet driver
  Documentation: networking: Add Altera Ethernet (TSE) Documentation
  Altera TSE: Add Altera Ethernet Driver Makefile and Kconfig
  Altera TSE: Add Altera Ethernet Driver MSGDMA File Components
  Altera TSE: Add Altera Ethernet Driver SGDMA file components
  Altera TSE: Add Miscellaneous Files for Altera Ethernet Driver
  Altera TSE: Add main and header file for Altera Ethernet Driver

 .../devicetree/bindings/net/altera_tse.txt         |  112 ++
 Documentation/networking/altera_tse.txt            |  119 ++
 MAINTAINERS                                        |    7 +
 drivers/net/ethernet/Kconfig                       |    1 +
 drivers/net/ethernet/Makefile                      |    1 +
 drivers/net/ethernet/altera/Kconfig                |    8 +
 drivers/net/ethernet/altera/Makefile               |    7 +
 drivers/net/ethernet/altera/altera_msgdma.c        |  203 +++
 drivers/net/ethernet/altera/altera_msgdma.h        |   34 +
 drivers/net/ethernet/altera/altera_msgdmahw.h      |  167 +++
 drivers/net/ethernet/altera/altera_sgdma.c         |  532 +++++++
 drivers/net/ethernet/altera/altera_sgdma.h         |   35 +
 drivers/net/ethernet/altera/altera_sgdmahw.h       |  124 ++
 drivers/net/ethernet/altera/altera_tse.h           |  486 ++++++
 drivers/net/ethernet/altera/altera_tse_ethtool.c   |  226 +++
 drivers/net/ethernet/altera/altera_tse_main.c      | 1546 ++++++++++++++++++++
 drivers/net/ethernet/altera/altera_utils.c         |   44 +
 drivers/net/ethernet/altera/altera_utils.h         |   27 +
 18 files changed, 3679 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/net/altera_tse.txt
 create mode 100644 Documentation/networking/altera_tse.txt
 create mode 100644 drivers/net/ethernet/altera/Kconfig
 create mode 100644 drivers/net/ethernet/altera/Makefile
 create mode 100644 drivers/net/ethernet/altera/altera_msgdma.c
 create mode 100644 drivers/net/ethernet/altera/altera_msgdma.h
 create mode 100644 drivers/net/ethernet/altera/altera_msgdmahw.h
 create mode 100644 drivers/net/ethernet/altera/altera_sgdma.c
 create mode 100644 drivers/net/ethernet/altera/altera_sgdma.h
 create mode 100644 drivers/net/ethernet/altera/altera_sgdmahw.h
 create mode 100644 drivers/net/ethernet/altera/altera_tse.h
 create mode 100644 drivers/net/ethernet/altera/altera_tse_ethtool.c
 create mode 100644 drivers/net/ethernet/altera/altera_tse_main.c
 create mode 100644 drivers/net/ethernet/altera/altera_utils.c
 create mode 100644 drivers/net/ethernet/altera/altera_utils.h

-- 
1.7.9.5

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