netdev - [PATCH v2 0/3] net: Add Keystone NetCP ethernet driver support

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Date:	Fri, 15 Aug 2014 11:12:39 -0400
From:	Santosh Shilimkar <santosh.shilimkar@...com>
To:	<davem@...emloft.net>, <netdev@...r.kernel.org>
CC:	<linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>, <robh+dt@...nel.org>,
	<grant.likely@...aro.org>, <devicetree@...r.kernel.org>,
	<sandeep_n@...com>, Santosh Shilimkar <santosh.shilimkar@...com>
Subject: [PATCH v2 0/3] net: Add Keystone NetCP ethernet driver support

Update version after incorporating David Miller's comment from earlier
posting [1]. I would like to get these merged for upcoming 3.18 merge
window if there are no concerns on this version.

The network coprocessor (NetCP) is a hardware accelerator that processes
Ethernet packets. NetCP has a gigabit Ethernet (GbE) subsystem with a ethernet
switch sub-module to send and receive packets. NetCP also includes a packet
accelerator (PA) module to perform packet classification operations such as
header matching, and packet modification operations such as checksum
generation. NetCP can also optionally include a Security Accelerator(SA)
capable of performing IPSec operations on ingress/egress packets.

Keystone SoC's also have a 10 Gigabit Ethernet Subsystem (XGbE) which
includes a 3-port Ethernet switch sub-module capable of 10Gb/s and
1Gb/s rates per Ethernet port.

NetCP driver has a plug-in module architecture where each of the NetCP
sub-modules exist as a loadable kernel module which plug in to the netcp
core. These sub-modules are represented as "netcp-devices" in the dts
bindings. It is mandatory to have the ethernet switch sub-module for
the ethernet interface to be operational. Any other sub-module like the
PA is optional.

Both GBE and XGBE network processors supported using common driver. It
is also designed to handle future variants of NetCP.

Cc: David Miller <davem@...emloft.net>
Cc: Rob Herring <robh+dt@...nel.org>
Cc: Grant Likely <grant.likely@...aro.org>
Cc: Sandeep Nair <sandeep_n@...com>

Sandeep Nair (3):
  Documentation: dt: net: Add binding doc for Keystone NetCP ethernet
    driver
  net: Add Keystone NetCP ethernet driver
  MAINTAINER: net: Add TI NETCP Ethernet driver entry

 .../devicetree/bindings/net/keystone-netcp.txt     |  197 ++
 MAINTAINERS                                        |    6 +
 drivers/net/ethernet/ti/Kconfig                    |   15 +-
 drivers/net/ethernet/ti/Makefile                   |    4 +
 drivers/net/ethernet/ti/netcp.h                    |  227 ++
 drivers/net/ethernet/ti/netcp_core.c               | 2276 ++++++++++++++++++++
 drivers/net/ethernet/ti/netcp_ethss.c              | 2178 +++++++++++++++++++
 drivers/net/ethernet/ti/netcp_sgmii.c              |  130 ++
 drivers/net/ethernet/ti/netcp_xgbepcsr.c           |  502 +++++
 9 files changed, 5532 insertions(+), 3 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/net/keystone-netcp.txt
 create mode 100644 drivers/net/ethernet/ti/netcp.h
 create mode 100644 drivers/net/ethernet/ti/netcp_core.c
 create mode 100644 drivers/net/ethernet/ti/netcp_ethss.c
 create mode 100644 drivers/net/ethernet/ti/netcp_sgmii.c
 create mode 100644 drivers/net/ethernet/ti/netcp_xgbepcsr.c

regards,
Santosh

[1] https://lkml.org/lkml/2014/4/22/805

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