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Message-ID: <0909d861-e256-8d91-587f-16254283b149@huawei.com>
Date: Wed, 26 Jul 2023 17:56:18 +0800
From: "lihuisong (C)" <lihuisong@...wei.com>
To: Wei Xu <xuwei5@...ilicon.com>, <arnd@...db.de>, <krzk@...nel.org>,
<sudeep.holla@....com>
CC: <linux-kernel@...r.kernel.org>, <soc@...nel.org>,
<linux-arm-kernel@...ts.infradead.org>, <wanghuiqiang@...wei.com>,
<tanxiaofei@...wei.com>, <liuyonglong@...wei.com>,
<lihuisong@...wei.com>
Subject: Re: [PATCH RESEND v3 2/2] doc: soc: hisilicon: Add Kunpeng HCCS
driver documentation
在 2023/7/25 16:59, Wei Xu 写道:
> Hi Huisong,
>
> On 2023/7/25 15:57, Huisong Li wrote:
>> Document the sysfs attributes description provided by HCCS driver on
>> Kunpeng SoC.
>>
>> Signed-off-by: Huisong Li <lihuisong@...wei.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..83ebed801249
>> --- /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
> Please update the date to "November 2023" to match the 6.6 kernel.
Ack. will fix in next version.
>
>> +KernelVersion: 6.6
>> +Contact: Huisong Li <lihuisong@...wei.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
> Ditto.
Ack
>
>> +KernelVersion: 6.6
>> +Contact: Huisong Li <lihuisong@...wei.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
> Ditto.
Ack
>
>> +KernelVersion: 6.6
>> +Contact: Huisong Li <lihuisong@...wei.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 4e55ff992171..7a34bab232eb 100644
>> --- a/MAINTAINERS
>> +++ b/MAINTAINERS
>> @@ -9474,6 +9474,7 @@ F: drivers/crypto/hisilicon/zip/
>> HISILICON KUNPENG SOC HCCS DRIVER
>> M: Huisong Li <lihuisong@...wei.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
>>
>>
> .
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