| What: /sys/devices/platform/soc@X/XXXXXXX.ipa/ |
| Date: June 2021 |
| KernelVersion: v5.14 |
| Contact: Alex Elder <elder@kernel.org> |
| Description: |
| The /sys/devices/platform/soc@X/XXXXXXX.ipa/ directory |
| contains read-only attributes exposing information about |
| an IPA device. The X values could vary, but are typically |
| "soc@0/1e40000.ipa". |
| |
| What: .../XXXXXXX.ipa/version |
| Date: June 2021 |
| KernelVersion: v5.14 |
| Contact: Alex Elder <elder@kernel.org> |
| Description: |
| The .../XXXXXXX.ipa/version file contains the IPA hardware |
| version, as a period-separated set of two or three integers |
| (e.g., "3.5.1" or "4.2"). |
| |
| What: .../XXXXXXX.ipa/feature/ |
| Date: June 2021 |
| KernelVersion: v5.14 |
| Contact: Alex Elder <elder@kernel.org> |
| Description: |
| The .../XXXXXXX.ipa/feature/ directory contains a set of |
| attributes describing features implemented by the IPA |
| hardware. |
| |
| What: .../XXXXXXX.ipa/feature/rx_offload |
| Date: June 2021 |
| KernelVersion: v5.14 |
| Contact: Alex Elder <elder@kernel.org> |
| Description: |
| The .../XXXXXXX.ipa/feature/rx_offload file contains a |
| string indicating the type of receive checksum offload |
| that is supported by the hardware. The possible values |
| are "MAPv4" or "MAPv5". |
| |
| What: .../XXXXXXX.ipa/feature/tx_offload |
| Date: June 2021 |
| KernelVersion: v5.14 |
| Contact: Alex Elder <elder@kernel.org> |
| Description: |
| The .../XXXXXXX.ipa/feature/tx_offload file contains a |
| string indicating the type of transmit checksum offload |
| that is supported by the hardware. The possible values |
| are "MAPv4" or "MAPv5". |
| |
| What: .../XXXXXXX.ipa/endpoint_id/ |
| Date: July 2022 |
| KernelVersion: v5.19 |
| Contact: Alex Elder <elder@kernel.org> |
| Description: |
| The .../XXXXXXX.ipa/endpoint_id/ directory contains |
| attributes that define IDs associated with IPA |
| endpoints. The "rx" or "tx" in an endpoint name is |
| from the perspective of the AP. An endpoint ID is a |
| small unsigned integer. |
| |
| What: .../XXXXXXX.ipa/endpoint_id/modem_rx |
| Date: July 2022 |
| KernelVersion: v5.19 |
| Contact: Alex Elder <elder@kernel.org> |
| Description: |
| The .../XXXXXXX.ipa/endpoint_id/modem_rx file contains |
| the ID of the AP endpoint on which packets originating |
| from the embedded modem are received. |
| |
| What: .../XXXXXXX.ipa/endpoint_id/modem_tx |
| Date: July 2022 |
| KernelVersion: v5.19 |
| Contact: Alex Elder <elder@kernel.org> |
| Description: |
| The .../XXXXXXX.ipa/endpoint_id/modem_tx file contains |
| the ID of the AP endpoint on which packets destined |
| for the embedded modem are sent. |
| |
| What: .../XXXXXXX.ipa/endpoint_id/monitor_rx |
| Date: July 2022 |
| KernelVersion: v5.19 |
| Contact: Alex Elder <elder@kernel.org> |
| Description: |
| The .../XXXXXXX.ipa/endpoint_id/monitor_rx file contains |
| the ID of the AP endpoint on which IPA "monitor" data is |
| received. The monitor endpoint supplies replicas of |
| packets that enter the IPA hardware for processing. |
| Each replicated packet is preceded by a fixed-size "ODL" |
| header (see .../XXXXXXX.ipa/feature/monitor, above). |
| Large packets are truncated, to reduce the bandwidth |
| required to provide the monitor function. |
| |
| What: .../XXXXXXX.ipa/modem/ |
| Date: June 2021 |
| KernelVersion: v5.14 |
| Contact: Alex Elder <elder@kernel.org> |
| Description: |
| The .../XXXXXXX.ipa/modem/ directory contains attributes |
| describing properties of the modem embedded in the SoC. |
| |
| What: .../XXXXXXX.ipa/modem/rx_endpoint_id |
| Date: June 2021 |
| KernelVersion: v5.14 |
| Contact: Alex Elder <elder@kernel.org> |
| Description: |
| The .../XXXXXXX.ipa/modem/rx_endpoint_id file duplicates |
| the value found in .../XXXXXXX.ipa/endpoint_id/modem_rx. |
| |
| What: .../XXXXXXX.ipa/modem/tx_endpoint_id |
| Date: June 2021 |
| KernelVersion: v5.14 |
| Contact: Alex Elder <elder@kernel.org> |
| Description: |
| The .../XXXXXXX.ipa/modem/tx_endpoint_id file duplicates |
| the value found in .../XXXXXXX.ipa/endpoint_id/modem_tx. |
