1 Device instance to test mapping
2 intel_ifs_0 -> Scan Test
3 intel_ifs_1 -> Array BIST test
5 What: /sys/devices/virtual/misc/intel_ifs_<N>/run_test
8 Contact: "Jithu Joseph" <jithu.joseph@intel.com>
9 Description: Write <cpu#> to trigger IFS test for one online core.
10 Note that the test is per core. The cpu# can be
11 for any thread on the core. Running on one thread
12 completes the test for the core containing that thread.
13 Example: to test the core containing cpu5: echo 5 >
14 /sys/devices/virtual/misc/intel_ifs_<N>/run_test
17 What: /sys/devices/virtual/misc/intel_ifs_<N>/status
20 Contact: "Jithu Joseph" <jithu.joseph@intel.com>
21 Description: The status of the last test. It can be one of "pass", "fail"
25 What: /sys/devices/virtual/misc/intel_ifs_<N>/details
28 Contact: "Jithu Joseph" <jithu.joseph@intel.com>
29 Description: Additional information regarding the last test. The details file reports
30 the hex value of the STATUS MSR for this test. Note that the error_code field
31 may contain driver defined software code not defined in the Intel SDM.
34 What: /sys/devices/virtual/misc/intel_ifs_<N>/image_version
37 Contact: "Jithu Joseph" <jithu.joseph@intel.com>
38 Description: Version (hexadecimal) of loaded IFS test image. If no test image
39 is loaded reports "none". Only present for device instances where a test image
43 What: /sys/devices/virtual/misc/intel_ifs_<N>/current_batch
46 Contact: "Jithu Joseph" <jithu.joseph@intel.com>
47 Description: Write a number less than or equal to 0xff to load an IFS test image.
48 The number written treated as the 2 digit suffix in the following file name:
49 /lib/firmware/intel/ifs_<N>/ff-mm-ss-02x.scan
50 Reading the file will provide the suffix of the currently loaded IFS test image.
51 This file is present only for device instances where a test image is applicable.