1 What: /sys/kernel/debug/hisi_hpre/<bdf>/cluster[0-3]/regs 2 Date: Sep 2019 3 Contact: linux-crypto@vger.kernel.org 4 Description: Dump debug registers from the HPRE cluster. 5 Only available for PF. 6 7 What: /sys/kernel/debug/hisi_hpre/<bdf>/cluster[0-3]/cluster_ctrl 8 Date: Sep 2019 9 Contact: linux-crypto@vger.kernel.org 10 Description: Write the HPRE core selection in the cluster into this file, 11 and then we can read the debug information of the core. 12 Only available for PF. 13 14 What: /sys/kernel/debug/hisi_hpre/<bdf>/rdclr_en 15 Date: Sep 2019 16 Contact: linux-crypto@vger.kernel.org 17 Description: HPRE cores debug registers read clear control. 1 means enable 18 register read clear, otherwise 0. Writing to this file has no 19 functional effect, only enable or disable counters clear after 20 reading of these registers. 21 Only available for PF. 22 23 What: /sys/kernel/debug/hisi_hpre/<bdf>/current_qm 24 Date: Sep 2019 25 Contact: linux-crypto@vger.kernel.org 26 Description: One HPRE controller has one PF and multiple VFs, each function 27 has a QM. Select the QM which below qm refers to. 28 Only available for PF. 29 30 What: /sys/kernel/debug/hisi_hpre/<bdf>/alg_qos 31 Date: Jun 2021 32 Contact: linux-crypto@vger.kernel.org 33 Description: The <bdf> is related the function for PF and VF. 34 HPRE driver supports to configure each function's QoS, the driver 35 supports to write <bdf> value to alg_qos in the host. Such as 36 "echo <bdf> value > alg_qos". The qos value is 1~1000, means 37 1/1000~1000/1000 of total QoS. The driver reading alg_qos to 38 get related QoS in the host and VM, Such as "cat alg_qos". 39 40 What: /sys/kernel/debug/hisi_hpre/<bdf>/regs 41 Date: Sep 2019 42 Contact: linux-crypto@vger.kernel.org 43 Description: Dump debug registers from the HPRE. 44 Only available for PF. 45 46 What: /sys/kernel/debug/hisi_hpre/<bdf>/qm/regs 47 Date: Sep 2019 48 Contact: linux-crypto@vger.kernel.org 49 Description: Dump debug registers from the QM. 50 Available for PF and VF in host. VF in guest currently only 51 has one debug register. 52 53 What: /sys/kernel/debug/hisi_hpre/<bdf>/qm/current_q 54 Date: Sep 2019 55 Contact: linux-crypto@vger.kernel.org 56 Description: One QM may contain multiple queues. Select specific queue to 57 show its debug registers in above regs. 58 Only available for PF. 59 60 What: /sys/kernel/debug/hisi_hpre/<bdf>/qm/clear_enable 61 Date: Sep 2019 62 Contact: linux-crypto@vger.kernel.org 63 Description: QM debug registers(regs) read clear control. 1 means enable 64 register read clear, otherwise 0. 65 Writing to this file has no functional effect, only enable or 66 disable counters clear after reading of these registers. 67 Only available for PF. 68 69 What: /sys/kernel/debug/hisi_hpre/<bdf>/qm/err_irq 70 Date: Apr 2020 71 Contact: linux-crypto@vger.kernel.org 72 Description: Dump the number of invalid interrupts for 73 QM task completion. 74 Available for both PF and VF, and take no other effect on HPRE. 75 76 What: /sys/kernel/debug/hisi_hpre/<bdf>/qm/aeq_irq 77 Date: Apr 2020 78 Contact: linux-crypto@vger.kernel.org 79 Description: Dump the number of QM async event queue interrupts. 80 Available for both PF and VF, and take no other effect on HPRE. 81 82 What: /sys/kernel/debug/hisi_hpre/<bdf>/qm/abnormal_irq 83 Date: Apr 2020 84 Contact: linux-crypto@vger.kernel.org 85 Description: Dump the number of interrupts for QM abnormal event. 86 Available for both PF and VF, and take no other effect on HPRE. 87 88 What: /sys/kernel/debug/hisi_hpre/<bdf>/qm/create_qp_err 89 Date: Apr 2020 90 Contact: linux-crypto@vger.kernel.org 91 Description: Dump the number of queue allocation errors. 92 Available for both PF and VF, and take no other effect on HPRE. 93 94 What: /sys/kernel/debug/hisi_hpre/<bdf>/qm/mb_err 95 Date: Apr 2020 96 Contact: linux-crypto@vger.kernel.org 97 Description: Dump the number of failed QM mailbox commands. 98 Available for both PF and VF, and take no other effect on HPRE. 99 100 What: /sys/kernel/debug/hisi_hpre/<bdf>/qm/status 101 Date: Apr 2020 102 Contact: linux-crypto@vger.kernel.org 103 Description: Dump the status of the QM. 104 Two states: work, stop. 105 Available for both PF and VF, and take no other effect on HPRE. 106 107 What: /sys/kernel/debug/hisi_hpre/<bdf>/qm/diff_regs 108 Date: Mar 2022 109 Contact: linux-crypto@vger.kernel.org 110 Description: QM debug registers(regs) read hardware register value. This 111 node is used to show the change of the qm register values. This 112 node can be help users to check the change of register values. 113 114 What: /sys/kernel/debug/hisi_hpre/<bdf>/qm/qm_state 115 Date: Jan 2024 116 Contact: linux-crypto@vger.kernel.org 117 Description: Dump the state of the device. 118 0: busy, 1: idle. 119 Only available for PF, and take no other effect on HPRE. 120 121 What: /sys/kernel/debug/hisi_hpre/<bdf>/qm/dev_timeout 122 Date: Feb 2024 123 Contact: linux-crypto@vger.kernel.org 124 Description: Set the wait time when stop queue fails. Available for both PF 125 and VF, and take no other effect on HPRE. 126 0: not wait(default), others value: wait dev_timeout * 20 microsecond. 127 128 What: /sys/kernel/debug/hisi_hpre/<bdf>/qm/dev_state 129 Date: Feb 2024 130 Contact: linux-crypto@vger.kernel.org 131 Description: Dump the stop queue status of the QM. The default value is 0, 132 if dev_timeout is set, when stop queue fails, the dev_state 133 will return non-zero value. Available for both PF and VF, 134 and take no other effect on HPRE. 135 136 What: /sys/kernel/debug/hisi_hpre/<bdf>/hpre_dfx/diff_regs 137 Date: Mar 2022 138 Contact: linux-crypto@vger.kernel.org 139 Description: HPRE debug registers(regs) read hardware register value. This 140 node is used to show the change of the register values. This 141 node can be help users to check the change of register values. 142 143 What: /sys/kernel/debug/hisi_hpre/<bdf>/hpre_dfx/send_cnt 144 Date: Apr 2020 145 Contact: linux-crypto@vger.kernel.org 146 Description: Dump the total number of sent requests. 147 Available for both PF and VF, and take no other effect on HPRE. 148 149 What: /sys/kernel/debug/hisi_hpre/<bdf>/hpre_dfx/recv_cnt 150 Date: Apr 2020 151 Contact: linux-crypto@vger.kernel.org 152 Description: Dump the total number of received requests. 153 Available for both PF and VF, and take no other effect on HPRE. 154 155 What: /sys/kernel/debug/hisi_hpre/<bdf>/hpre_dfx/send_busy_cnt 156 Date: Apr 2020 157 Contact: linux-crypto@vger.kernel.org 158 Description: Dump the total number of requests sent 159 with returning busy. 160 Available for both PF and VF, and take no other effect on HPRE. 161 162 What: /sys/kernel/debug/hisi_hpre/<bdf>/hpre_dfx/send_fail_cnt 163 Date: Apr 2020 164 Contact: linux-crypto@vger.kernel.org 165 Description: Dump the total number of completed but error requests. 166 Available for both PF and VF, and take no other effect on HPRE. 167 168 What: /sys/kernel/debug/hisi_hpre/<bdf>/hpre_dfx/invalid_req_cnt 169 Date: Apr 2020 170 Contact: linux-crypto@vger.kernel.org 171 Description: Dump the total number of invalid requests being received. 172 Available for both PF and VF, and take no other effect on HPRE. 173 174 What: /sys/kernel/debug/hisi_hpre/<bdf>/hpre_dfx/overtime_thrhld 175 Date: Apr 2020 176 Contact: linux-crypto@vger.kernel.org 177 Description: Set the threshold time for counting the request which is 178 processed longer than the threshold. 179 0: disable(default), 1: 1 microsecond. 180 Available for both PF and VF, and take no other effect on HPRE. 181 182 What: /sys/kernel/debug/hisi_hpre/<bdf>/hpre_dfx/over_thrhld_cnt 183 Date: Apr 2020 184 Contact: linux-crypto@vger.kernel.org 185 Description: Dump the total number of time out requests. 186 Available for both PF and VF, and take no other effect on HPRE.
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