new file mode 100644
@@ -0,0 +1,76 @@
+What: /sys/devices/platform/HISI04Bx:00/chipX/all_linked
+ /sys/devices/platform/HISI04Bx:00/chipX/linked_full_lane
+ /sys/devices/platform/HISI04Bx:00/chipX/crc_err_cnt
+Date: May 2023
+KernelVersion: 6.4
+Contact: Huisong Li <lihuisong@huawei.org>
+Description:
+ The /sys/devices/platform/HISI04Bx:00/chipX/ directory
+ contains read-only attributes exposing some summarization
+ information of all HCCS ports under a specified chip.
+ The X in 'chipX' indicates the Xth chip on platform.
+
+ There are following attributes in this directory:
+ ================= ==== =========================================
+ all_linked: (RO) if all enabled ports on this chip are
+ linked (bool).
+ linked_full_lane: (RO) if all linked ports on this chip are full
+ lane (bool).
+ crc_err_cnt: (RO) total CRC err count for all ports on this
+ chip.
+ ============= ==== =============================================
+
+What: /sys/devices/platform/HISI04Bx:00/chipX/dieY/all_linked
+ /sys/devices/platform/HISI04Bx:00/chipX/dieY/linked_full_lane
+ /sys/devices/platform/HISI04Bx:00/chipX/dieY/crc_err_cnt
+Date: May 2023
+KernelVersion: 6.4
+Contact: Huisong Li <lihuisong@huawei.org>
+Description:
+ The /sys/devices/platform/HISI04Bx:00/chipX/dieY/ directory
+ contains read-only attributes exposing some summarization
+ information of all HCCS ports under a specified die.
+ The Y in 'dieY' indicates the hardware id of the die on chip who
+ has chip id X.
+
+ There are following attributes in this directory:
+ ================= ==== =========================================
+ all_linked: (RO) if all enabled ports on this die are
+ linked (bool).
+ linked_full_lane: (RO) if all linked ports on this die are full
+ lane (bool).
+ crc_err_cnt: (RO) total CRC err count for all ports on this
+ die.
+ ============= ==== =============================================
+
+What: /sys/devices/platform/HISI04Bx:00/chipX/dieY/hccsN/type
+ /sys/devices/platform/HISI04Bx:00/chipX/dieY/hccsN/lane_mode
+ /sys/devices/platform/HISI04Bx:00/chipX/dieY/hccsN/enable
+ /sys/devices/platform/HISI04Bx:00/chipX/dieY/hccsN/cur_lane_num
+ /sys/devices/platform/HISI04Bx:00/chipX/dieY/hccsN/lane_mask
+ /sys/devices/platform/HISI04Bx:00/chipX/dieY/hccsN/crc_err_cnt
+Date: May 2023
+KernelVersion: 6.4
+Contact: Huisong Li <lihuisong@huawei.org>
+Description:
+ The /sys/devices/platform/HISI04Bx/chipX/dieX/hccsN/ directory
+ contains read-only attributes exposing information about
+ a HCCS port. The N value in 'hccsN' indicates this port id.
+ The X in 'chipX' indicates the ID of the chip to which the
+ HCCS port belongs. For example, X ranges from to 'n - 1' if the
+ chip number on platform is n.
+ The Y in 'dieY' indicates the hardware id of the die to which
+ the hccs port belongs.
+
+ The HCCS port have the following attributes:
+ ============= ==== =============================================
+ type: (RO) port type (string), e.g. HCCS-v1 -> H32
+ lane_mode: (RO) the lane mode of this port (string), e.g. x8
+ enable: (RO) indicate if this port is enabled (bool).
+ cur_lane_num: (RO) current lane number of this port.
+ lane_mask: (RO) current lane mask of this port, every bit
+ indicates a lane.
+ crc_err_cnt: (RO) CRC err count on this port.
+ ============= ==== =============================================
+ Note: type, lane_mode and enable are fixed attributes on
+ running platform.
@@ -9433,6 +9433,7 @@ F: drivers/crypto/hisilicon/zip/
HISILICON KUNPENG SOC HCCS DRIVER
M: Huisong Li <lihuisong@huawei.com>
S: Maintained
+F: Documentation/ABI/testing/sysfs-devices-platform-kunpeng_hccs
F: drivers/soc/hisilicon/kunpeng_hccs.c
F: drivers/soc/hisilicon/kunpeng_hccs.h
Document the sysfs attributes description provided by HCCS driver on Kunpeng SoC. Signed-off-by: Huisong Li <lihuisong@huawei.com> --- .../sysfs-devices-platform-kunpeng_hccs | 76 +++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 77 insertions(+) create mode 100644 Documentation/ABI/testing/sysfs-devices-platform-kunpeng_hccs