freebsd-nq/sys/contrib/ncsw/inc/ddr_std_ext.h
Justin Hibbits 0aeed3e993 Add support for the Freescale dTSEC DPAA-based ethernet controller.
Freescale's QorIQ line includes a new ethernet controller, based on their
Datapath Acceleration Architecture (DPAA).  This uses a combination of a Frame
manager, Buffer manager, and Queue manager to improve performance across all
interfaces by being able to pass data directly between hardware acceleration
interfaces.

As part of this import, Freescale's Netcomm Software (ncsw) driver is imported.
This was an attempt by Freescale to create an OS-agnostic sub-driver for
managing the hardware, using shims to interface to the OS-specific APIs.  This
work was abandoned, and Freescale's primary work is in the Linux driver (dual
BSD/GPL license).  Hence, this was imported directly to sys/contrib, rather than
going through the vendor area.  Going forward, FreeBSD-specific changes may be
made to the ncsw code, diverging from the upstream in potentially incompatible
ways.  An alternative could be to import the Linux driver itself, using the
linuxKPI layer, as that would maintain parity with the vendor-maintained driver.
However, the Linux driver has not been evaluated for reliability yet, and may
have issues with the import, whereas the ncsw-based driver in this commit was
completed by Semihalf 4 years ago, and is very stable.

Other SoC modules based on DPAA, which could be added in the future:
* Security and Encryption engine (SEC4.x, SEC5.x)
* RAID engine

Additional work to be done:
* Implement polling mode
* Test vlan support
* Add support for the Pattern Matching Engine, which can do regular expression
  matching on packets.

This driver has been tested on the P5020 QorIQ SoC.  Others listed in the
dtsec(4) manual page are expected to work as the same DPAA engine is included in
all.

Obtained from:	Semihalf
Relnotes:	Yes
Sponsored by:	Alex Perez/Inertial Computing
2016-02-29 03:38:00 +00:00

81 lines
3.1 KiB
C

/******************************************************************************
© 1995-2003, 2004, 2005-2011 Freescale Semiconductor, Inc.
All rights reserved.
This is proprietary source code of Freescale Semiconductor Inc.,
and its use is subject to the NetComm Device Drivers EULA.
The copyright notice above does not evidence any actual or intended
publication of such source code.
ALTERNATIVELY, redistribution and use in source and binary forms, with
or without modification, are permitted provided that the following
conditions are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
* Neither the name of Freescale Semiconductor nor the
names of its contributors may be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
**************************************************************************/
#ifndef __DDR_SDT_EXT_H
#define __DDR_SDT_EXT_H
/**************************************************************************//**
@Group ddr_Generic_Resources
@Description ddr generic functions, definitions and enums.
@{
*//***************************************************************************/
/**************************************************************************//**
@Description SPD maximum size
*//***************************************************************************/
#define SPD_MAX_SIZE 256
/**************************************************************************//**
@Description DDR types select
*//***************************************************************************/
typedef enum e_DdrType
{
e_DDR_DDR1,
e_DDR_DDR2,
e_DDR_DDR3,
e_DDR_DDR3L
} e_DdrType;
/**************************************************************************//**
@Description DDR Mode.
*//***************************************************************************/
typedef enum e_DdrMode
{
e_DDR_BUS_WIDTH_32BIT,
e_DDR_BUS_WIDTH_64BIT
} e_DdrMode;
/** @} */ /* end of ddr_Generic_Resources group */
#endif /* __DDR_SDT_EXT_H */