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| author | Bjorn Helgaas <bhelgaas@google.com> | 2016-08-01 20:34:01 +0300 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2016-08-01 20:34:01 +0300 |
| commit | 9454c23852ca6d7aec89fd6fd46a046c323caac3 (patch) | |
| tree | 794be65345027b5adea3720a43124fee338333a5 /include/linux/pci.h | |
| parent | a04bee8285a71cdbb9076c3dc38be1f0b9a6b4b3 (diff) | |
| parent | 4ef33685aa0957d771e068b60a5f3ca6b47ade1c (diff) | |
| download | linux-9454c23852ca6d7aec89fd6fd46a046c323caac3.tar.xz | |
Merge branch 'pci/msi-affinity' into next
Conflicts:
drivers/nvme/host/pci.c
Diffstat (limited to 'include/linux/pci.h')
| -rw-r--r-- | include/linux/pci.h | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/include/linux/pci.h b/include/linux/pci.h index 1fed5927b08a..98909063a70c 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -325,6 +325,7 @@ struct pci_dev { * directly, use the values stored here. They might be different! */ unsigned int irq; + struct cpumask *irq_affinity; struct resource resource[DEVICE_COUNT_RESOURCE]; /* I/O and memory regions + expansion ROMs */ bool match_driver; /* Skip attaching driver */ @@ -1249,6 +1250,11 @@ resource_size_t pcibios_iov_resource_alignment(struct pci_dev *dev, int resno); int pci_set_vga_state(struct pci_dev *pdev, bool decode, unsigned int command_bits, u32 flags); +#define PCI_IRQ_NOLEGACY (1 << 0) /* don't use legacy interrupts */ +#define PCI_IRQ_NOMSI (1 << 1) /* don't use MSI interrupts */ +#define PCI_IRQ_NOMSIX (1 << 2) /* don't use MSI-X interrupts */ +#define PCI_IRQ_NOAFFINITY (1 << 3) /* don't auto-assign affinity */ + /* kmem_cache style wrapper around pci_alloc_consistent() */ #include <linux/pci-dma.h> @@ -1296,6 +1302,11 @@ static inline int pci_enable_msix_exact(struct pci_dev *dev, return rc; return 0; } +int pci_alloc_irq_vectors(struct pci_dev *dev, unsigned int min_vecs, + unsigned int max_vecs, unsigned int flags); +void pci_free_irq_vectors(struct pci_dev *dev); +int pci_irq_vector(struct pci_dev *dev, unsigned int nr); + #else static inline int pci_msi_vec_count(struct pci_dev *dev) { return -ENOSYS; } static inline void pci_msi_shutdown(struct pci_dev *dev) { } @@ -1319,6 +1330,24 @@ static inline int pci_enable_msix_range(struct pci_dev *dev, static inline int pci_enable_msix_exact(struct pci_dev *dev, struct msix_entry *entries, int nvec) { return -ENOSYS; } +static inline int pci_alloc_irq_vectors(struct pci_dev *dev, + unsigned int min_vecs, unsigned int max_vecs, + unsigned int flags) +{ + if (min_vecs > 1) + return -EINVAL; + return 1; +} +static inline void pci_free_irq_vectors(struct pci_dev *dev) +{ +} + +static inline int pci_irq_vector(struct pci_dev *dev, unsigned int nr) +{ + if (WARN_ON_ONCE(nr > 0)) + return -EINVAL; + return dev->irq; +} #endif #ifdef CONFIG_PCIEPORTBUS |