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1What: /sys/devices/platform/soc@X/XXXXXXX.ipa/2Date: June 20213KernelVersion: v5.144Contact: Alex Elder <elder@kernel.org>5Description:6 The /sys/devices/platform/soc@X/XXXXXXX.ipa/ directory7 contains read-only attributes exposing information about8 an IPA device. The X values could vary, but are typically9 "soc@0/1e40000.ipa".10 11What: .../XXXXXXX.ipa/version12Date: June 202113KernelVersion: v5.1414Contact: Alex Elder <elder@kernel.org>15Description:16 The .../XXXXXXX.ipa/version file contains the IPA hardware17 version, as a period-separated set of two or three integers18 (e.g., "3.5.1" or "4.2").19 20What: .../XXXXXXX.ipa/feature/21Date: June 202122KernelVersion: v5.1423Contact: Alex Elder <elder@kernel.org>24Description:25 The .../XXXXXXX.ipa/feature/ directory contains a set of26 attributes describing features implemented by the IPA27 hardware.28 29What: .../XXXXXXX.ipa/feature/rx_offload30Date: June 202131KernelVersion: v5.1432Contact: Alex Elder <elder@kernel.org>33Description:34 The .../XXXXXXX.ipa/feature/rx_offload file contains a35 string indicating the type of receive checksum offload36 that is supported by the hardware. The possible values37 are "MAPv4" or "MAPv5".38 39What: .../XXXXXXX.ipa/feature/tx_offload40Date: June 202141KernelVersion: v5.1442Contact: Alex Elder <elder@kernel.org>43Description:44 The .../XXXXXXX.ipa/feature/tx_offload file contains a45 string indicating the type of transmit checksum offload46 that is supported by the hardware. The possible values47 are "MAPv4" or "MAPv5".48 49What: .../XXXXXXX.ipa/endpoint_id/50Date: July 202251KernelVersion: v5.1952Contact: Alex Elder <elder@kernel.org>53Description:54 The .../XXXXXXX.ipa/endpoint_id/ directory contains55 attributes that define IDs associated with IPA56 endpoints. The "rx" or "tx" in an endpoint name is57 from the perspective of the AP. An endpoint ID is a58 small unsigned integer.59 60What: .../XXXXXXX.ipa/endpoint_id/modem_rx61Date: July 202262KernelVersion: v5.1963Contact: Alex Elder <elder@kernel.org>64Description:65 The .../XXXXXXX.ipa/endpoint_id/modem_rx file contains66 the ID of the AP endpoint on which packets originating67 from the embedded modem are received.68 69What: .../XXXXXXX.ipa/endpoint_id/modem_tx70Date: July 202271KernelVersion: v5.1972Contact: Alex Elder <elder@kernel.org>73Description:74 The .../XXXXXXX.ipa/endpoint_id/modem_tx file contains75 the ID of the AP endpoint on which packets destined76 for the embedded modem are sent.77 78What: .../XXXXXXX.ipa/endpoint_id/monitor_rx79Date: July 202280KernelVersion: v5.1981Contact: Alex Elder <elder@kernel.org>82Description:83 The .../XXXXXXX.ipa/endpoint_id/monitor_rx file contains84 the ID of the AP endpoint on which IPA "monitor" data is85 received. The monitor endpoint supplies replicas of86 packets that enter the IPA hardware for processing.87 Each replicated packet is preceded by a fixed-size "ODL"88 header (see .../XXXXXXX.ipa/feature/monitor, above).89 Large packets are truncated, to reduce the bandwidth90 required to provide the monitor function.91 92What: .../XXXXXXX.ipa/modem/93Date: June 202194KernelVersion: v5.1495Contact: Alex Elder <elder@kernel.org>96Description:97 The .../XXXXXXX.ipa/modem/ directory contains attributes98 describing properties of the modem embedded in the SoC.99 100What: .../XXXXXXX.ipa/modem/rx_endpoint_id101Date: June 2021102KernelVersion: v5.14103Contact: Alex Elder <elder@kernel.org>104Description:105 The .../XXXXXXX.ipa/modem/rx_endpoint_id file duplicates106 the value found in .../XXXXXXX.ipa/endpoint_id/modem_rx.107 108What: .../XXXXXXX.ipa/modem/tx_endpoint_id109Date: June 2021110KernelVersion: v5.14111Contact: Alex Elder <elder@kernel.org>112Description:113 The .../XXXXXXX.ipa/modem/tx_endpoint_id file duplicates114 the value found in .../XXXXXXX.ipa/endpoint_id/modem_tx.115