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| author | Arnd Bergmann <arnd@arndb.de> | 2023-08-12 12:10:46 +0200 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2023-08-12 12:10:46 +0200 |
| commit | bb2974ffff00e83a69d54c03aff8bbaf82a4cd83 (patch) | |
| tree | c38a25f6feeceb374701d5e4d50430b3b8019907 /Documentation/ABI | |
| parent | 8bb5c5fa24e13723780686f898c46cb5f6132355 (diff) | |
| parent | b51022b416f5be113cd5345a2cab287d78e6b74c (diff) | |
Merge tag 'hisi-drivers-for-6.6' of https://github.com/hisilicon/linux-hisi into soc/drivers
HiSilicon driver updates for v6.6
- Add HCCS driver for HiSilicon Kunpeng SoC and document the sysfs description
* tag 'hisi-drivers-for-6.6' of https://github.com/hisilicon/linux-hisi:
doc: soc: hisilicon: Add Kunpeng HCCS driver documentation
soc: hisilicon: add sysfs entry to query information of HCCS
soc: hisilicon: Support HCCS driver on Kunpeng SoC
Link: https://lore.kernel.org/r/64D605DE.2070303@hisilicon.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'Documentation/ABI')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-devices-platform-kunpeng_hccs | 81 |
1 files changed, 81 insertions, 0 deletions
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..fdb4e36310fb --- /dev/null +++ b/Documentation/ABI/testing/sysfs-devices-platform-kunpeng_hccs @@ -0,0 +1,81 @@ +What: /sys/devices/platform/HISI04Bx:00/chipX/all_linked +What: /sys/devices/platform/HISI04Bx:00/chipX/linked_full_lane +What: /sys/devices/platform/HISI04Bx:00/chipX/crc_err_cnt +Date: November 2023 +KernelVersion: 6.6 +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 +What: /sys/devices/platform/HISI04Bx:00/chipX/dieY/linked_full_lane +What: /sys/devices/platform/HISI04Bx:00/chipX/dieY/crc_err_cnt +Date: November 2023 +KernelVersion: 6.6 +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 +What: /sys/devices/platform/HISI04Bx:00/chipX/dieY/hccsN/lane_mode +What: /sys/devices/platform/HISI04Bx:00/chipX/dieY/hccsN/enable +What: /sys/devices/platform/HISI04Bx:00/chipX/dieY/hccsN/cur_lane_num +What: /sys/devices/platform/HISI04Bx:00/chipX/dieY/hccsN/link_fsm +What: /sys/devices/platform/HISI04Bx:00/chipX/dieY/hccsN/lane_mask +What: /sys/devices/platform/HISI04Bx:00/chipX/dieY/hccsN/crc_err_cnt +Date: November 2023 +KernelVersion: 6.6 +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. + Note: type, lane_mode and enable are fixed attributes on running + platform. + + 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. + link_fsm: (RO) link finite state machine 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. + ============= ==== ============================================= |