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23fe8112a2
Kunpeng_hccs driver supports multiple HCCS types used on one platform at the same time. In this case, to find which HCCS types are used on the platform the user needs to scan the type attribute of all ports, which is unfriendly to the user. In addition, the aggregated information is also useful for global control like the low power feature. So add the sysfs to show all HCCS types used on the platform. Signed-off-by: Huisong Li <lihuisong@huawei.com> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
90 lines
3.8 KiB
Plaintext
90 lines
3.8 KiB
Plaintext
What: /sys/devices/platform/HISI04Bx:00/chipX/all_linked
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What: /sys/devices/platform/HISI04Bx:00/chipX/linked_full_lane
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What: /sys/devices/platform/HISI04Bx:00/chipX/crc_err_cnt
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Date: November 2023
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KernelVersion: 6.6
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Contact: Huisong Li <lihuisong@huawei.com>
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Description:
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The /sys/devices/platform/HISI04Bx:00/chipX/ directory
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contains read-only attributes exposing some summarization
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information of all HCCS ports under a specified chip.
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The X in 'chipX' indicates the Xth chip on platform.
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There are following attributes in this directory:
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================= ==== =========================================
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all_linked: (RO) if all enabled ports on this chip are
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linked (bool).
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linked_full_lane: (RO) if all linked ports on this chip are full
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lane (bool).
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crc_err_cnt: (RO) total CRC err count for all ports on this
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chip.
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================= ==== =========================================
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What: /sys/devices/platform/HISI04Bx:00/chipX/dieY/all_linked
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What: /sys/devices/platform/HISI04Bx:00/chipX/dieY/linked_full_lane
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What: /sys/devices/platform/HISI04Bx:00/chipX/dieY/crc_err_cnt
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Date: November 2023
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KernelVersion: 6.6
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Contact: Huisong Li <lihuisong@huawei.com>
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Description:
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The /sys/devices/platform/HISI04Bx:00/chipX/dieY/ directory
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contains read-only attributes exposing some summarization
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information of all HCCS ports under a specified die.
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The Y in 'dieY' indicates the hardware id of the die on chip who
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has chip id X.
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There are following attributes in this directory:
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================= ==== =========================================
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all_linked: (RO) if all enabled ports on this die are
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linked (bool).
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linked_full_lane: (RO) if all linked ports on this die are full
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lane (bool).
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crc_err_cnt: (RO) total CRC err count for all ports on this
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die.
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================= ==== =========================================
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What: /sys/devices/platform/HISI04Bx:00/chipX/dieY/hccsN/type
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What: /sys/devices/platform/HISI04Bx:00/chipX/dieY/hccsN/lane_mode
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What: /sys/devices/platform/HISI04Bx:00/chipX/dieY/hccsN/enable
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What: /sys/devices/platform/HISI04Bx:00/chipX/dieY/hccsN/cur_lane_num
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What: /sys/devices/platform/HISI04Bx:00/chipX/dieY/hccsN/link_fsm
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What: /sys/devices/platform/HISI04Bx:00/chipX/dieY/hccsN/lane_mask
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What: /sys/devices/platform/HISI04Bx:00/chipX/dieY/hccsN/crc_err_cnt
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Date: November 2023
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KernelVersion: 6.6
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Contact: Huisong Li <lihuisong@huawei.com>
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Description:
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The /sys/devices/platform/HISI04Bx/chipX/dieX/hccsN/ directory
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contains read-only attributes exposing information about
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a HCCS port. The N value in 'hccsN' indicates this port id.
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The X in 'chipX' indicates the ID of the chip to which the
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HCCS port belongs. For example, X ranges from to 'n - 1' if the
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chip number on platform is n.
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The Y in 'dieY' indicates the hardware id of the die to which
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the hccs port belongs.
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Note: type, lane_mode and enable are fixed attributes on running
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platform.
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The HCCS port have the following attributes:
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============= ==== =============================================
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type: (RO) port type (string), e.g. HCCS-v1 -> H32
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lane_mode: (RO) the lane mode of this port (string), e.g. x8
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enable: (RO) indicate if this port is enabled (bool).
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cur_lane_num: (RO) current lane number of this port.
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link_fsm: (RO) link finite state machine of this port.
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lane_mask: (RO) current lane mask of this port, every bit
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indicates a lane.
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crc_err_cnt: (RO) CRC err count on this port.
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============= ==== =============================================
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What: /sys/devices/platform/HISI04Bx:00/used_types
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Date: August 2024
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KernelVersion: 6.12
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Contact: Huisong Li <lihuisong@huawei.com>
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Description:
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This interface is used to show all HCCS types used on the
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platform, like, HCCS-v1, HCCS-v2 and so on.
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