net/ipa/ipa_endpoint.h

1 /* SPDX-License-Identifier: GPL-2.0 */
3 /* Copyright (c) 2012-2018, The Linux Foundation. All rights reserved.
4  * Copyright (C) 2019-2024 Linaro Ltd.
22 /* Non-zero granularity of counter used to implement aggregation timeout */
44  * struct ipa_endpoint_tx - Endpoint configuration for TX endpoints
47  * @status_endpoint:	endpoint to which status elements are sent
49  * The @status_endpoint is only valid if the endpoint's @status_enable
59  * struct ipa_endpoint_rx - Endpoint configuration for RX endpoints
61  * @pad_align:		power-of-2 boundary to which packet payload is aligned
64  * @aggr_close_eof:	whether aggregation closes on end-of-frame
65  * @holb_drop:		whether to drop packets to avoid head-of-line blocking
68  * to be a power-of-2 number of pages.
72  * to the end of the packet data so the result ends on a power-of-2 boundary.
99  * struct ipa_endpoint_config - IPA endpoint hardware configuration
100  * @resource_group:	resource group to assign endpoint to
102  * @qmap:		whether endpoint uses QMAP protocol
103  * @aggregation:	whether endpoint supports aggregation
104  * @status_enable:	whether endpoint uses status elements
105  * @dma_mode:		whether endpoint operates in DMA mode
106  * @dma_endpoint:	peer endpoint, if operating in DMA mode
107  * @tx:			TX-specific endpoint information (see above)
108  * @rx:			RX-specific endpoint information (see above)
138  * struct ipa_endpoint - IPA endpoint information
140  * @ee_id:		Execution environmnent endpoint is associated with
141  * @channel_id:		GSI channel used by the endpoint
142  * @endpoint_id:	IPA endpoint number
143  * @toward_ipa:		Endpoint direction (true = TX, false = RX)
144  * @config:		Default endpoint configuration
146  * @evt_ring_id:	GSI event ring used by the endpoint
147  * @netdev:		Network device pointer, if endpoint uses one
158 	struct ipa_endpoint_config config;  member
163 	/* Net device this endpoint is associated with, if any */
178 int ipa_endpoint_skb_tx(struct ipa_endpoint *endpoint, struct sk_buff *skb);
180 int ipa_endpoint_enable_one(struct ipa_endpoint *endpoint);
181 void ipa_endpoint_disable_one(struct ipa_endpoint *endpoint);
183 void ipa_endpoint_suspend_one(struct ipa_endpoint *endpoint);
184 void ipa_endpoint_resume_one(struct ipa_endpoint *endpoint);
202 void ipa_endpoint_trans_complete(struct ipa_endpoint *endpoint,
204 void ipa_endpoint_trans_release(struct ipa_endpoint *endpoint,