Messages in this thread Patch in this message | | | From | Huisong Li <> | Subject | [PATCH v3 2/2] doc: soc: hisilicon: Add Kunpeng HCCS driver documentation | Date | Tue, 30 May 2023 19:27:46 +0800 |
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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
diff --git a/Documentation/ABI/testing/sysfs-devices-platform-kunpeng_hccs b/Documentation/ABI/testing/sysfs-devices-platform-kunpeng_hccs new file mode 100644 index 000000000000..a9b5c5b0a997 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-devices-platform-kunpeng_hccs @@ -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. diff --git a/MAINTAINERS b/MAINTAINERS index e08aa0d5c491..1da0daece29a 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -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 -- 2.33.0
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