sys/dev/vmware/vmci/vmci.h

   1 /*-
   2  * Copyright (c) 2018 VMware, Inc.
   3  *
   4  * SPDX-License-Identifier: (BSD-2-Clause OR GPL-2.0)
   5  *
   6  * $FreeBSD$
   7  */
   8
   9 /* Driver for VMware Virtual Machine Communication Interface (VMCI) device. */
  10
  11 #ifndef _VMCI_H_
  12 #define _VMCI_H_
  13
  14 #include <sys/param.h>
  15 #include <sys/lock.h>
  16 #include <sys/mutex.h>
  17 #include <sys/systm.h>
  18 #include <sys/taskqueue.h>
  19
  20 #include <machine/bus.h>
  21
  22 #include "vmci_datagram.h"
  23 #include "vmci_kernel_if.h"
  24
  25 /* VMCI device vendor and device ID */
  26 #define VMCI_VMWARE_VENDOR_ID   0x15AD
  27 #define VMCI_VMWARE_DEVICE_ID   0x0740
  28
  29 #define VMCI_VERSION            1
  30
  31 struct vmci_dma_alloc {
  32         bus_dma_tag_t   dma_tag;
  33         caddr_t         dma_vaddr;
  34         bus_addr_t      dma_paddr;
  35         bus_dmamap_t    dma_map;
  36         bus_size_t      dma_size;
  37 };
  38
  39 struct vmci_interrupt {
  40         struct resource *vmci_irq;
  41         int             vmci_rid;
  42         void            *vmci_handler;
  43 };
  44
  45 struct vmci_softc {
  46         device_t                vmci_dev;
  47
  48         struct mtx              vmci_spinlock;
  49
  50         struct resource         *vmci_res0;
  51         bus_space_tag_t         vmci_iot0;
  52         bus_space_handle_t      vmci_ioh0;
  53         unsigned int            vmci_ioaddr;
  54         struct resource         *vmci_res1;
  55         bus_space_tag_t         vmci_iot1;
  56         bus_space_handle_t      vmci_ioh1;
  57
  58         struct vmci_dma_alloc   vmci_notifications_bitmap;
  59
  60         int                     vmci_num_intr;
  61         vmci_intr_type          vmci_intr_type;
  62         struct vmci_interrupt   vmci_intrs[VMCI_MAX_INTRS];
  63         struct task             vmci_interrupt_dq_task;
  64         struct task             vmci_interrupt_bm_task;
  65
  66         struct task             vmci_delayed_work_task;
  67         struct mtx              vmci_delayed_work_lock;
  68         vmci_list(vmci_delayed_work_info) vmci_delayed_work_infos;
  69
  70         unsigned int            capabilities;
  71 };
  72
  73 int     vmci_dma_malloc(bus_size_t size, bus_size_t align,
  74             struct vmci_dma_alloc *dma);
  75 void    vmci_dma_free(struct vmci_dma_alloc *);
  76 int     vmci_schedule_delayed_work_fn(vmci_work_fn *work_fn, void *data);
  77
  78 #endif /* !_VMCI_H_ */