Messages in this thread | | | Subject | Re: [PATCH 00/12] misc: xilinx sd-fec driver | From | Michal Simek <> | Date | Tue, 19 Mar 2019 13:17:49 +0100 |
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On 19. 03. 19 13:04, Dragan Cvetic wrote: > 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>
I am not using this tag a lot that's why I am curious where you got it from? I can't see it in Xilinx tree too.
Thanks, Michal
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