1 /* 2 * VMware VMCI Driver 3 * 4 * Copyright (C) 2012 VMware, Inc. All rights reserved. 5 * 6 * This program is free software; you can redistribute it and/or modify it 7 * under the terms of the GNU General Public License as published by the 8 * Free Software Foundation version 2 and no later version. 9 * 10 * This program is distributed in the hope that it will be useful, but 11 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 12 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 13 * for more details. 14 */ 15 16 #ifndef VMCI_DOORBELL_H 17 #define VMCI_DOORBELL_H 18 19 #include <linux/vmw_vmci_defs.h> 20 #include <linux/types.h> 21 22 #include "vmci_driver.h" 23 24 /* 25 * VMCINotifyResourceInfo: Used to create and destroy doorbells, and 26 * generate a notification for a doorbell or queue pair. 27 */ 28 struct vmci_dbell_notify_resource_info { 29 struct vmci_handle handle; 30 u16 resource; 31 u16 action; 32 s32 result; 33 }; 34 35 /* 36 * Structure used for checkpointing the doorbell mappings. It is 37 * written to the checkpoint as is, so changing this structure will 38 * break checkpoint compatibility. 39 */ 40 struct dbell_cpt_state { 41 struct vmci_handle handle; 42 u64 bitmap_idx; 43 }; 44 45 int vmci_dbell_host_context_notify(u32 src_cid, struct vmci_handle handle); 46 int vmci_dbell_get_priv_flags(struct vmci_handle handle, u32 *priv_flags); 47 48 bool vmci_dbell_register_notification_bitmap(u64 bitmap_ppn); 49 void vmci_dbell_scan_notification_entries(u8 *bitmap); 50 51 #endif /* VMCI_DOORBELL_H */ 52