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/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.