| Device instance to test mapping |
| intel_ifs_0 -> Scan Test |
| intel_ifs_1 -> Array BIST test |
| |
| What: /sys/devices/virtual/misc/intel_ifs_<N>/run_test |
| Date: Nov 16 2022 |
| KernelVersion: 6.2 |
| Contact: "Jithu Joseph" <jithu.joseph@intel.com> |
| Description: Write <cpu#> to trigger IFS test for one online core. |
| Note that the test is per core. The cpu# can be |
| for any thread on the core. Running on one thread |
| completes the test for the core containing that thread. |
| Example: to test the core containing cpu5: echo 5 > |
| /sys/devices/virtual/misc/intel_ifs_<N>/run_test |
| Devices: all |
| |
| What: /sys/devices/virtual/misc/intel_ifs_<N>/status |
| Date: Nov 16 2022 |
| KernelVersion: 6.2 |
| Contact: "Jithu Joseph" <jithu.joseph@intel.com> |
| Description: The status of the last test. It can be one of "pass", "fail" |
| or "untested". |
| Devices: all |
| |
| What: /sys/devices/virtual/misc/intel_ifs_<N>/details |
| Date: Nov 16 2022 |
| KernelVersion: 6.2 |
| Contact: "Jithu Joseph" <jithu.joseph@intel.com> |
| Description: Additional information regarding the last test. The details file reports |
| the hex value of the STATUS MSR for this test. Note that the error_code field |
| may contain driver defined software code not defined in the Intel SDM. |
| Devices: all |
| |
| What: /sys/devices/virtual/misc/intel_ifs_<N>/image_version |
| Date: Nov 16 2022 |
| KernelVersion: 6.2 |
| Contact: "Jithu Joseph" <jithu.joseph@intel.com> |
| Description: Version (hexadecimal) of loaded IFS test image. If no test image |
| is loaded reports "none". Only present for device instances where a test image |
| is applicable. |
| Devices: intel_ifs_0 |
| |
| What: /sys/devices/virtual/misc/intel_ifs_<N>/current_batch |
| Date: Nov 16 2022 |
| KernelVersion: 6.2 |
| Contact: "Jithu Joseph" <jithu.joseph@intel.com> |
| Description: Write a number less than or equal to 0xff to load an IFS test image. |
| The number written treated as the 2 digit suffix in the following file name: |
| /lib/firmware/intel/ifs_<N>/ff-mm-ss-02x.scan |
| Reading the file will provide the suffix of the currently loaded IFS test image. |
| This file is present only for device instances where a test image is applicable. |
| Devices: intel_ifs_0 |
