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PCI/MSI: Introduce pci_msix_table_size()

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Introduce new function pci_msix_table_size() returning the size of
the MSI-X table of given PCI device or 0 if the device doesn't
support MSI-X.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Reviewed-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
This commit is contained in:
Rafael J. Wysocki 2009-01-24 00:21:14 +01:00 • committed by Jesse Barnes
parent a447b77282
commit a52e2e3513
2 changed files with 24 additions and 5 deletions
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5
include/linux/pci.h
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@ -799,6 +799,10 @@ static inline void pci_msi_shutdown(struct pci_dev *dev)
static inline void pci_disable_msi(struct pci_dev *dev)
{ }
static inline int pci_msix_table_size(struct pci_dev *dev)
{
return 0;
}
static inline int pci_enable_msix(struct pci_dev *dev,
struct msix_entry *entries, int nvec)
{
@ -823,6 +827,7 @@ static inline int pci_msi_enabled(void)
extern int pci_enable_msi(struct pci_dev *dev);
extern void pci_msi_shutdown(struct pci_dev *dev);
extern void pci_disable_msi(struct pci_dev *dev);
extern int pci_msix_table_size(struct pci_dev *dev);
extern int pci_enable_msix(struct pci_dev *dev,
struct msix_entry *entries, int nvec);
extern void pci_msix_shutdown(struct pci_dev *dev);