wwan/iosm/iosm_ipc_mux.h

1 /* SPDX-License-Identifier: GPL-2.0-only
3  * Copyright (C) 2020-21 Intel Corporation.
26 /* open session request (AP->CP) */
29 /* response to open session request (CP->AP) */
32 /* close session request (AP->CP) */
35 /* response to close session request (CP->AP) */
38 /* Flow control command with mask of the flow per queue/flow. */
41 /* ACK the flow control command. Shall have the same Transaction ID as the
103 	u8 flow_ctrl; /* 0: Flow control disabled (flow allowed). */
104 	/* 1: Flow control enabled (flow not allowed)*/
115 	u8 flow_ctrl; /* 0: Flow control disabled (flow allowed). */
116 	/* 1: Flow control enabled (flow not allowed) */
129 /* Parameter definition of the flow control command. */
131 	__le32 mask; /* indicating the desired flow control */
146  * union mux_cmd_param - Union-definition of the command parameters.
150  * @flow_ctl:		In-band flow control on the opened interfaces
151  * @link_status:	In-band Link Status Report
152  * @link_status_resp:	In-band command for link status report response
192 	u32 flow_ctl_mask; /* UL flow control */
193 	u32 flow_ctl_en_cnt; /* Flow control Enable cmd count */
194 	u32 flow_ctl_dis_cnt; /* Flow Control Disable cmd count */
195 	int ul_flow_credits; /* UL flow credits */
201  * struct mux_adth_dg - Structure of the datagram in the Aggregated Datagram
203  * @datagram_index :	Index (in bytes) to the k-th datagram in the table.
205  *			the 16-byte header. This value shall be non-zero.
206  * @datagram_length:	Length of the k-th datagram including the head padding.
207  *			This value shall be non-zero.
219  * struct mux_qlth_ql - Structure of the queue level in the Aggregated
228  * struct mux_qlth -    Structure of Aggregated Datagram Queue Level Table
240  *                      16-byte header. Value of zero indicates end of the list.
255  * struct mux_adb - Structure of State of a single UL data block.
292  * struct mux_acb - Structure of Temporary ACB state.
312  * struct iosm_mux - Structure of the data multiplexing over an IP channel.
322  * @ul_flow:		UL Flow type
385  * ipc_mux_init - Allocates and Init MUX instance
387  * @ipc_imem:	Pointer to imem data-struct
395  * ipc_mux_deinit - Deallocates MUX instance
401  * ipc_mux_check_n_restart_tx - Checks for pending UL date bytes and then
403  *				device has set flow control as off.
404  * @ipc_mux:	Pointer to MUX data-struct
409  * ipc_mux_get_active_protocol - Returns the active MUX protocol type.
410  * @ipc_mux:	Pointer to MUX data-struct
417  * ipc_mux_open_session - Opens a MUX session for IP traffic.
418  * @ipc_mux:	Pointer to MUX data-struct
426  * ipc_mux_close_session - Closes a MUX session.
427  * @ipc_mux:	Pointer to MUX data-struct
435  * ipc_mux_get_max_sessions - Retuns the maximum sessions supported on the
437  * @ipc_mux:	Pointer to MUX data-struct