include/hw/pci/msix.h

   1 #ifndef QEMU_MSIX_H
   2 #define QEMU_MSIX_H
   3
   4 #include "hw/pci/pci.h"
   5
   6 #define MSIX_CAP_LENGTH 12
   7
   8 void msix_set_message(PCIDevice *dev, int vector, MSIMessage msg);
   9 MSIMessage msix_get_message(PCIDevice *dev, unsigned int vector);
  10 int msix_init(PCIDevice *dev, unsigned short nentries,
  11               MemoryRegion *table_bar, uint8_t table_bar_nr,
  12               unsigned table_offset, MemoryRegion *pba_bar,
  13               uint8_t pba_bar_nr, unsigned pba_offset, uint8_t cap_pos,
  14               Error **errp);
  15 int msix_init_exclusive_bar(PCIDevice *dev, unsigned short nentries,
  16                             uint8_t bar_nr, Error **errp);
  17
  18 void msix_write_config(PCIDevice *dev, uint32_t address, uint32_t val, int len);
  19
  20 void msix_uninit(PCIDevice *dev, MemoryRegion *table_bar,
  21                  MemoryRegion *pba_bar);
  22 void msix_uninit_exclusive_bar(PCIDevice *dev);
  23
  24 unsigned int msix_nr_vectors_allocated(const PCIDevice *dev);
  25
  26 void msix_save(PCIDevice *dev, QEMUFile *f);
  27 void msix_load(PCIDevice *dev, QEMUFile *f);
  28
  29 int msix_enabled(PCIDevice *dev);
  30 int msix_present(PCIDevice *dev);
  31
  32 bool msix_is_masked(PCIDevice *dev, unsigned vector);
  33 void msix_set_pending(PCIDevice *dev, unsigned vector);
  34 void msix_clr_pending(PCIDevice *dev, int vector);
  35
  36 int msix_vector_use(PCIDevice *dev, unsigned vector);
  37 void msix_vector_unuse(PCIDevice *dev, unsigned vector);
  38 void msix_unuse_all_vectors(PCIDevice *dev);
  39
  40 void msix_notify(PCIDevice *dev, unsigned vector);
  41
  42 void msix_reset(PCIDevice *dev);
  43
  44 int msix_set_vector_notifiers(PCIDevice *dev,
  45                               MSIVectorUseNotifier use_notifier,
  46                               MSIVectorReleaseNotifier release_notifier,
  47                               MSIVectorPollNotifier poll_notifier);
  48 void msix_unset_vector_notifiers(PCIDevice *dev);
  49
  50 extern const VMStateDescription vmstate_msix;
  51
  52 #define VMSTATE_MSIX_TEST(_field, _state, _test) {                   \
  53     .name         = (stringify(_field)),                             \
  54     .size         = sizeof(PCIDevice),                               \
  55     .vmsd         = &vmstate_msix,                                   \
  56     .flags        = VMS_STRUCT,                                      \
  57     .offset       = vmstate_offset_value(_state, _field, PCIDevice), \
  58     .field_exists = (_test)                                          \
  59 }
  60
  61 #define VMSTATE_MSIX(_f, _s)                                         \
  62     VMSTATE_MSIX_TEST(_f, _s, NULL)
  63
  64 #endif