Messages in this thread Patch in this message | | | From | shubhrajyoti.datta@gmail ... | Subject | [PATCH 3/3] Documentation: short descriptions for Flexnoc Performance Monitor driver | Date | Mon, 25 Nov 2019 16:25:52 +0530 |
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From: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
Add short documentation for FlexNoc Performance Monitor driver.
Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com> --- Documentation/misc-devices/xilinx_flex.txt | 66 ++++++++++++++++++++++++++++++ 1 file changed, 66 insertions(+) create mode 100644 Documentation/misc-devices/xilinx_flex.txt
diff --git a/Documentation/misc-devices/xilinx_flex.txt b/Documentation/misc-devices/xilinx_flex.txt new file mode 100644 index 0000000..c075934 --- /dev/null +++ b/Documentation/misc-devices/xilinx_flex.txt @@ -0,0 +1,66 @@ +Kernel driver xilinx_flex +============================ + +Supported chips: +Versal SOC + +Author: + Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com> + +Description +----------- + +Versal uses the Arteris FlexNoC interconnect instead of the ARM NIC. FlexNoC +provides the capability to integrate performance counters in the interconnect. +It has configurable probe points to monitor the packet and forwards it to +observer for logging. It supports read and write transaction counts for +request and response. + +Features: +---> Run-time programmable selection of packet probe points. +---> Recording of traffic and link statistics. +---> Separate read and write response and request count. + +SYSFS: + +counteridfpd + RW - shows the counter number selected for the FPD Flexnoc. + +counterfpd_rdreq + RO - shows the read request count for the FPD counters. + +counterfpdsrc + WO - sets the source of the FPD counter. + +counterfpd_wrrsp + RO - shows the write response count for the FPD counters. + +counterfpd_rdrsp + RO - shows the read response count for the FPD counters. + +counterfpd_wrreq + RO - shows the write request count for the FPD counters. + +counterfpdport + WO - sets the port number selected for the FPD Flexnoc. + +counteridlpd + RW - shows the counter number selected for the LPD Flexnoc. + +counterlpdport + WO - sets the port number selected for the LPD Flexnoc. + +counterlpd_rdreq + RO - shows the read request count for the LPD counters. + +counterlpd_wrreq + RO - shows the write request count for the LPD counters. + +counterlpd_wrrsp + RO - shows the write response count for the LPD counters. + +counterlpdsrc + WO - sets the source of the LPD counter. + +counterlpd_rdrsp + RO - shows the read response count for the LPD counters. -- 2.1.1
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