cdx/controller/mcdi.h

1 /* SPDX-License-Identifier: GPL-2.0
3  * Copyright 2008-2013 Solarflare Communications Inc.
4  * Copyright (C) 2022-2023, Advanced Micro Devices, Inc.
12 #include <linux/rpmsg.h>
26  * enum cdx_mcdi_mode - MCDI transaction mode
28  * @MCDI_MODE_FAIL: we think MCDI is dead, so fail-fast all calls
42  * enum cdx_mcdi_cmd_state - State for an individual MCDI command
62  * struct cdx_mcdi - CDX MCDI Firmware interface, to interact
67  * @rpdev: RPMsg device
68  * @ept: RPMsg endpoint
95  * struct cdx_mcdi_cmd - An outstanding MCDI command
97  *	in the mcdi_iface cmd_list, another if it's on a cleanup list,
98  *	and a third if it's queued in the work queue.
99  * @list: The data for this entry in mcdi->cmd_list
100  * @cleanup_list: The data for this entry in a cleanup list
101  * @work: The work item for this command, queued in mcdi->workqueue
143  * struct cdx_mcdi_iface - MCDI protocol context
150  * @db_held_by: Command the MC doorbell is in use by
151  * @seq_held_by: Command each sequence number is in use by
174  * struct cdx_mcdi_data - extra state for NICs that implement MCDI
185 	return cdx->mcdi ? &cdx->mcdi->iface : NULL;  in cdx_mcdi_if()
203  * We expect that 16- and 32-bit fields in MCDI requests and responses
204  * are appropriately aligned, but 64-bit fields are only
205  * 32-bit-aligned.
213 	((void)BUILD_BUG_ON_ZERO((_ofst) & ((_align) - 1)),		\