ee640c625e
msix_init() reports errors with error_report(), which is wrong when
it's used in realize(). The same issue was fixed for msi_init() in
commit 1108b2f. In order to make the API change as small as possible,
leave the return value check to later patch.
For some devices(like e1000e, vmxnet3, nvme) who won't fail because of
msix_init's failure, suppress the error report by passing NULL error
object.
Bonus: add comment for msix_init.
CC: Jiri Pirko <jiri@resnulli.us>
CC: Gerd Hoffmann <kraxel@redhat.com>
CC: Dmitry Fleytman <dmitry@daynix.com>
CC: Jason Wang <jasowang@redhat.com>
CC: Michael S. Tsirkin <mst@redhat.com>
CC: Hannes Reinecke <hare@suse.de>
CC: Paolo Bonzini <pbonzini@redhat.com>
CC: Alex Williamson <alex.williamson@redhat.com>
CC: Markus Armbruster <armbru@redhat.com>
CC: Marcel Apfelbaum <marcel@redhat.com>
Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
64 lines
2.4 KiB
C
64 lines
2.4 KiB
C
#ifndef QEMU_MSIX_H
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#define QEMU_MSIX_H
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#include "qemu-common.h"
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#include "hw/pci/pci.h"
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void msix_set_message(PCIDevice *dev, int vector, MSIMessage msg);
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MSIMessage msix_get_message(PCIDevice *dev, unsigned int vector);
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int msix_init(PCIDevice *dev, unsigned short nentries,
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MemoryRegion *table_bar, uint8_t table_bar_nr,
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unsigned table_offset, MemoryRegion *pba_bar,
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uint8_t pba_bar_nr, unsigned pba_offset, uint8_t cap_pos,
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Error **errp);
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int msix_init_exclusive_bar(PCIDevice *dev, unsigned short nentries,
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uint8_t bar_nr, Error **errp);
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void msix_write_config(PCIDevice *dev, uint32_t address, uint32_t val, int len);
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void msix_uninit(PCIDevice *dev, MemoryRegion *table_bar,
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MemoryRegion *pba_bar);
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void msix_uninit_exclusive_bar(PCIDevice *dev);
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unsigned int msix_nr_vectors_allocated(const PCIDevice *dev);
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void msix_save(PCIDevice *dev, QEMUFile *f);
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void msix_load(PCIDevice *dev, QEMUFile *f);
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int msix_enabled(PCIDevice *dev);
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int msix_present(PCIDevice *dev);
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bool msix_is_masked(PCIDevice *dev, unsigned vector);
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void msix_set_pending(PCIDevice *dev, unsigned vector);
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void msix_clr_pending(PCIDevice *dev, int vector);
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int msix_vector_use(PCIDevice *dev, unsigned vector);
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void msix_vector_unuse(PCIDevice *dev, unsigned vector);
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void msix_unuse_all_vectors(PCIDevice *dev);
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void msix_notify(PCIDevice *dev, unsigned vector);
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void msix_reset(PCIDevice *dev);
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int msix_set_vector_notifiers(PCIDevice *dev,
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MSIVectorUseNotifier use_notifier,
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MSIVectorReleaseNotifier release_notifier,
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MSIVectorPollNotifier poll_notifier);
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void msix_unset_vector_notifiers(PCIDevice *dev);
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extern const VMStateDescription vmstate_msix;
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#define VMSTATE_MSIX_TEST(_field, _state, _test) { \
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.name = (stringify(_field)), \
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.size = sizeof(PCIDevice), \
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.vmsd = &vmstate_msix, \
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.flags = VMS_STRUCT, \
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.offset = vmstate_offset_value(_state, _field, PCIDevice), \
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.field_exists = (_test) \
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}
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#define VMSTATE_MSIX(_f, _s) \
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VMSTATE_MSIX_TEST(_f, _s, NULL)
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#endif
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