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| author | Yu Zhao <yu.zhao@intel.com> | 2009-03-20 11:25:15 +0800 |
|---|---|---|
| committer | Jesse Barnes <jbarnes@virtuousgeek.org> | 2009-03-20 10:48:26 -0700 |
| commit | dd7cc44d0bcec5e9c42fe52e88dc254ae62eac8d (patch) | |
| tree | 742b2c903580eded1e352988b068c0362eccc634 /include/linux/pci.h | |
| parent | 480b93b7837fb3cf0579a42f4953ac463a5b9e1e (diff) | |
| download | linux-dd7cc44d0bcec5e9c42fe52e88dc254ae62eac8d.tar.gz linux-dd7cc44d0bcec5e9c42fe52e88dc254ae62eac8d.tar.bz2 linux-dd7cc44d0bcec5e9c42fe52e88dc254ae62eac8d.zip | |
PCI: add SR-IOV API for Physical Function driver
Add or remove the Virtual Function when the SR-IOV is enabled or
disabled by the device driver. This can happen anytime rather than
only at the device probe stage.
Reviewed-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Yu Zhao <yu.zhao@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'include/linux/pci.h')
| -rw-r--r-- | include/linux/pci.h | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/include/linux/pci.h b/include/linux/pci.h index 8ce2f2d9ab63..c2e491e04063 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -265,6 +265,7 @@ struct pci_dev { unsigned int is_pcie:1; unsigned int state_saved:1; unsigned int is_physfn:1; + unsigned int is_virtfn:1; pci_dev_flags_t dev_flags; atomic_t enable_cnt; /* pci_enable_device has been called */ @@ -279,7 +280,10 @@ struct pci_dev { #endif struct pci_vpd *vpd; #ifdef CONFIG_PCI_IOV - struct pci_sriov *sriov; /* SR-IOV capability related */ + union { + struct pci_sriov *sriov; /* SR-IOV capability related */ + struct pci_dev *physfn; /* the PF this VF is associated with */ + }; #endif }; @@ -1212,5 +1216,18 @@ int pci_ext_cfg_avail(struct pci_dev *dev); void __iomem *pci_ioremap_bar(struct pci_dev *pdev, int bar); +#ifdef CONFIG_PCI_IOV +extern int pci_enable_sriov(struct pci_dev *dev, int nr_virtfn); +extern void pci_disable_sriov(struct pci_dev *dev); +#else +static inline int pci_enable_sriov(struct pci_dev *dev, int nr_virtfn) +{ + return -ENODEV; +} +static inline void pci_disable_sriov(struct pci_dev *dev) +{ +} +#endif + #endif /* __KERNEL__ */ #endif /* LINUX_PCI_H */ |