From: Dragan Cvetic <dragan.cvetic@xilinx.com>
To: <arnd@arndb.de>, <gregkh@linuxfoundation.org>,
<michal.simek@xilinx.com>,
<linux-arm-kernel@lists.infradead.org>
Cc: Dragan Cvetic <dragan.cvetic@xilinx.com>,
Derek Kiernan <derek.kiernan@xilinx.com>,
linux-kernel@vger.kernel.org
Subject: [PATCH 00/12] misc: xilinx sd-fec driver
Date: Tue, 19 Mar 2019 12:04:12 +0000 [thread overview]
Message-ID: <1552997064-432700-1-git-send-email-dragan.cvetic@xilinx.com> (raw)
This patchset is adding the full Soft Decision Forward Error
Correction (SD-FEC) driver implementation, driver DT binding and
driver documentation.
Forward Error Correction (FEC) codes such as Low Density Parity
Check (LDPC) and turbo codes provide a means to control errors in
data transmissions over unreliable or noisy communication
channels. The SD-FEC Integrated Block is an optimized block for
soft-decision decoding of these codes. Fixed turbo codes are
supported directly, whereas custom and standardized LDPC codes
are supported through the ability to specify the parity check
matrix through an AXI4-Lite bus or using the optional programmable
(PL)-based support logic. For the further information see
https://www.xilinx.com/support/documentation/ip_documentation/
sd_fec/v1_1/pg256-sdfec-integrated-block.pdf
This driver is a platform device driver which supports SDFEC16
(16nm) IP. SD-FEC driver supports LDPC decoding and encoding and
Turbo code decoding. LDPC codes can be specified on
a codeword-by-codeword basis, also a custom LDPC code can be used.
The SD-FEC driver exposes a char device interface and supports
file operations: open(), close(), poll() and ioctl(). The driver
allows only one usage of the device, open() limits the number of
driver instances. The driver also utilize Common Clock Framework
(CCF).
The control and monitoring is supported over ioctl system call.
The features supported by ioctl():
- enable or disable data pipes to/from device
- configure the FEC algorithm parameters
- set the order of data
- provide a control of a SDFEC bypass option
- activates/deactivates SD-FEC
- collect and provide statistical data
- enable/disable interrupt mode
Poll can be utilized to detect errors on IRQ trigger rather than
using looping status and stats ioctl's.
Reviewed-by: Michal Simek <michal.simek@xilinx.com>
Tested-by: Santhosh Dyavanapally <SDYAVANA@xilinx.com>
Tested by: Punnaiah Choudary Kalluri <punnaia@xilinx.com>
Tested-by: Dragan Cvetic <dragan.cvetic@xilinx.com>
Tested-by: Derek Kiernan <derek.kiernan@xilinx.com>
Signed-off-by: Derek Kiernan <derek.kiernan@xilinx.com>
Signed-off-by: Dragan Cvetic <dragan.cvetic@xilinx.com>
Dragan Cvetic (12):
dt-bindings: xilinx-sdfec: Add SDFEC binding
misc: xilinx-sdfec: add core driver
misc: xilinx_sdfec: Add CCF support
misc: xilinx_sdfec: Add open, close and ioctl
misc: xilinx_sdfec: Store driver config and state
misc: xilinx_sdfec: Add ability to configure turbo mode
misc: xilinx_sdfec: Add ability to configure LDPC
misc: xilinx_sdfec: Add ability to get/set config
misc: xilinx_sdfec: Support poll file operation
misc: xilinx_sdfec: Add stats & status ioctls
Docs: misc: xilinx_sdfec: Add documentation
MAINTAINERS: add maintainer for SD-FEC support
.../devicetree/bindings/misc/xlnx,sd-fec.txt | 58 +
Documentation/misc-devices/index.rst | 1 +
Documentation/misc-devices/xilinx_sdfec.rst | 286 ++++
MAINTAINERS | 12 +
drivers/misc/Kconfig | 12 +
drivers/misc/Makefile | 1 +
drivers/misc/xilinx_sdfec.c | 1683 ++++++++++++++++++++
include/uapi/misc/xilinx_sdfec.h | 470 ++++++
8 files changed, 2523 insertions(+)
create mode 100644 Documentation/devicetree/bindings/misc/xlnx,sd-fec.txt
create mode 100644 Documentation/misc-devices/xilinx_sdfec.rst
create mode 100644 drivers/misc/xilinx_sdfec.c
create mode 100644 include/uapi/misc/xilinx_sdfec.h
--
2.7.4
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next reply other threads:[~2019-03-19 12:04 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-19 12:04 Dragan Cvetic [this message]
2019-03-19 12:04 ` [PATCH 01/12] dt-bindings: xilinx-sdfec: Add SDFEC binding Dragan Cvetic
2019-03-19 12:04 ` [PATCH 02/12] misc: xilinx-sdfec: add core driver Dragan Cvetic
2019-03-19 12:04 ` [PATCH 03/12] misc: xilinx_sdfec: Add CCF support Dragan Cvetic
2019-03-19 12:04 ` [PATCH 04/12] misc: xilinx_sdfec: Add open, close and ioctl Dragan Cvetic
2019-03-19 13:17 ` Arnd Bergmann
2019-03-19 14:59 ` Dragan Cvetic
2019-03-19 15:36 ` Arnd Bergmann
2019-03-19 18:10 ` Dragan Cvetic
2019-03-19 19:46 ` Arnd Bergmann
2019-04-09 8:35 ` Dragan Cvetic
2019-03-19 12:04 ` [PATCH 05/12] misc: xilinx_sdfec: Store driver config and state Dragan Cvetic
2019-03-19 12:04 ` [PATCH 06/12] misc: xilinx_sdfec: Add ability to configure turbo mode Dragan Cvetic
2019-03-19 12:04 ` [PATCH 07/12] misc: xilinx_sdfec: Add ability to configure LDPC Dragan Cvetic
2019-03-19 12:04 ` [PATCH 08/12] misc: xilinx_sdfec: Add ability to get/set config Dragan Cvetic
2019-03-19 13:05 ` Arnd Bergmann
2019-03-19 14:02 ` Dragan Cvetic
2019-03-19 12:04 ` [PATCH 09/12] misc: xilinx_sdfec: Support poll file operation Dragan Cvetic
2019-03-19 12:04 ` [PATCH 10/12] misc: xilinx_sdfec: Add stats & status ioctls Dragan Cvetic
2019-03-19 12:04 ` [PATCH 11/12] Docs: misc: xilinx_sdfec: Add documentation Dragan Cvetic
2019-03-19 12:04 ` [PATCH 12/12] MAINTAINERS: add maintainer for SD-FEC support Dragan Cvetic
2019-03-19 12:17 ` [PATCH 00/12] misc: xilinx sd-fec driver Michal Simek
2019-03-19 13:44 ` Dragan Cvetic
2019-03-19 13:51 ` Michal Simek
2019-03-19 13:55 ` Dragan Cvetic
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