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Query the capability register status of accelerator devices (SEC, HPRE and ZIP) through the debugfs interface, for example: cat cap_regs. The purpose is to improve the robustness and locability of hardware devices and drivers. Signed-off-by: Qi Tao <taoqi10@huawei.com> Signed-off-by: Chenghai Huang <huangchenghai2@huawei.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
168 lines
6.5 KiB
Plaintext
168 lines
6.5 KiB
Plaintext
What: /sys/kernel/debug/hisi_zip/<bdf>/comp_core[01]/regs
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Date: Nov 2018
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Contact: linux-crypto@vger.kernel.org
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Description: Dump of compression cores related debug registers.
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Only available for PF.
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What: /sys/kernel/debug/hisi_zip/<bdf>/decomp_core[0-5]/regs
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Date: Nov 2018
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Contact: linux-crypto@vger.kernel.org
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Description: Dump of decompression cores related debug registers.
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Only available for PF.
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What: /sys/kernel/debug/hisi_zip/<bdf>/clear_enable
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Date: Nov 2018
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Contact: linux-crypto@vger.kernel.org
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Description: Compression/decompression core debug registers read clear
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control. 1 means enable register read clear, otherwise 0.
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Writing to this file has no functional effect, only enable or
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disable counters clear after reading of these registers.
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Only available for PF.
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What: /sys/kernel/debug/hisi_zip/<bdf>/current_qm
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Date: Nov 2018
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Contact: linux-crypto@vger.kernel.org
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Description: One ZIP controller has one PF and multiple VFs, each function
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has a QM. Select the QM which below qm refers to.
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Only available for PF.
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What: /sys/kernel/debug/hisi_zip/<bdf>/alg_qos
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Date: Jun 2021
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Contact: linux-crypto@vger.kernel.org
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Description: The <bdf> is related the function for PF and VF.
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ZIP driver supports to configure each function's QoS, the driver
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supports to write <bdf> value to alg_qos in the host. Such as
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"echo <bdf> value > alg_qos". The qos value is 1~1000, means
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1/1000~1000/1000 of total QoS. The driver reading alg_qos to
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get related QoS in the host and VM, Such as "cat alg_qos".
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What: /sys/kernel/debug/hisi_zip/<bdf>/qm/regs
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Date: Nov 2018
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Contact: linux-crypto@vger.kernel.org
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Description: Dump of QM related debug registers.
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Available for PF and VF in host. VF in guest currently only
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has one debug register.
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What: /sys/kernel/debug/hisi_zip/<bdf>/qm/current_q
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Date: Nov 2018
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Contact: linux-crypto@vger.kernel.org
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Description: One QM may contain multiple queues. Select specific queue to
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show its debug registers in above regs.
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Only available for PF.
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What: /sys/kernel/debug/hisi_zip/<bdf>/qm/clear_enable
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Date: Nov 2018
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Contact: linux-crypto@vger.kernel.org
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Description: QM debug registers(regs) read clear control. 1 means enable
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register read clear, otherwise 0.
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Writing to this file has no functional effect, only enable or
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disable counters clear after reading of these registers.
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Only available for PF.
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What: /sys/kernel/debug/hisi_zip/<bdf>/qm/err_irq
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Date: Apr 2020
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Contact: linux-crypto@vger.kernel.org
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Description: Dump the number of invalid interrupts for
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QM task completion.
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Available for both PF and VF, and take no other effect on ZIP.
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What: /sys/kernel/debug/hisi_zip/<bdf>/qm/aeq_irq
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Date: Apr 2020
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Contact: linux-crypto@vger.kernel.org
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Description: Dump the number of QM async event queue interrupts.
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Available for both PF and VF, and take no other effect on ZIP.
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What: /sys/kernel/debug/hisi_zip/<bdf>/qm/abnormal_irq
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Date: Apr 2020
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Contact: linux-crypto@vger.kernel.org
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Description: Dump the number of interrupts for QM abnormal event.
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Available for both PF and VF, and take no other effect on ZIP.
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What: /sys/kernel/debug/hisi_zip/<bdf>/qm/create_qp_err
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Date: Apr 2020
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Contact: linux-crypto@vger.kernel.org
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Description: Dump the number of queue allocation errors.
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Available for both PF and VF, and take no other effect on ZIP.
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What: /sys/kernel/debug/hisi_zip/<bdf>/qm/mb_err
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Date: Apr 2020
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Contact: linux-crypto@vger.kernel.org
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Description: Dump the number of failed QM mailbox commands.
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Available for both PF and VF, and take no other effect on ZIP.
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What: /sys/kernel/debug/hisi_zip/<bdf>/qm/status
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Date: Apr 2020
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Contact: linux-crypto@vger.kernel.org
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Description: Dump the status of the QM.
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Two states: work, stop.
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Available for both PF and VF, and take no other effect on ZIP.
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What: /sys/kernel/debug/hisi_zip/<bdf>/qm/diff_regs
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Date: Mar 2022
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Contact: linux-crypto@vger.kernel.org
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Description: QM debug registers(regs) read hardware register value. This
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node is used to show the change of the qm registers value. This
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node can be help users to check the change of register values.
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What: /sys/kernel/debug/hisi_zip/<bdf>/qm/qm_state
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Date: Jan 2024
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Contact: linux-crypto@vger.kernel.org
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Description: Dump the state of the device.
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0: busy, 1: idle.
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Only available for PF, and take no other effect on ZIP.
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What: /sys/kernel/debug/hisi_zip/<bdf>/qm/dev_timeout
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Date: Feb 2024
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Contact: linux-crypto@vger.kernel.org
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Description: Set the wait time when stop queue fails. Available for both PF
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and VF, and take no other effect on ZIP.
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0: not wait(default), others value: wait dev_timeout * 20 microsecond.
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What: /sys/kernel/debug/hisi_zip/<bdf>/qm/dev_state
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Date: Feb 2024
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Contact: linux-crypto@vger.kernel.org
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Description: Dump the stop queue status of the QM. The default value is 0,
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if dev_timeout is set, when stop queue fails, the dev_state
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will return non-zero value. Available for both PF and VF,
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and take no other effect on ZIP.
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What: /sys/kernel/debug/hisi_zip/<bdf>/zip_dfx/diff_regs
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Date: Mar 2022
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Contact: linux-crypto@vger.kernel.org
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Description: ZIP debug registers(regs) read hardware register value. This
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node is used to show the change of the registers value. this
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node can be help users to check the change of register values.
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What: /sys/kernel/debug/hisi_zip/<bdf>/zip_dfx/send_cnt
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Date: Apr 2020
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Contact: linux-crypto@vger.kernel.org
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Description: Dump the total number of sent requests.
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Available for both PF and VF, and take no other effect on ZIP.
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What: /sys/kernel/debug/hisi_zip/<bdf>/zip_dfx/recv_cnt
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Date: Apr 2020
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Contact: linux-crypto@vger.kernel.org
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Description: Dump the total number of received requests.
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Available for both PF and VF, and take no other effect on ZIP.
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What: /sys/kernel/debug/hisi_zip/<bdf>/zip_dfx/send_busy_cnt
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Date: Apr 2020
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Contact: linux-crypto@vger.kernel.org
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Description: Dump the total number of requests received
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with returning busy.
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Available for both PF and VF, and take no other effect on ZIP.
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What: /sys/kernel/debug/hisi_zip/<bdf>/zip_dfx/err_bd_cnt
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Date: Apr 2020
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Contact: linux-crypto@vger.kernel.org
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Description: Dump the total number of BD type error requests
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to be received.
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Available for both PF and VF, and take no other effect on ZIP.
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What: /sys/kernel/debug/hisi_zip/<bdf>/cap_regs
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Date: Oct 2024
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Contact: linux-crypto@vger.kernel.org
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Description: Dump the values of the qm and zip capability bit registers and
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support the query of device specifications to facilitate fault locating.
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Available for both PF and VF, and take no other effect on ZIP.
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