PCI: create common pcibios_err_to_errno
For returning errors out to non-PCI code. Re-name xen's version. Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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@ -124,7 +124,7 @@ static inline u32 merge_value(u32 val, u32 new_val, u32 new_val_mask,
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return val;
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return val;
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}
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}
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static int pcibios_err_to_errno(int err)
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static int xen_pcibios_err_to_errno(int err)
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{
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{
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switch (err) {
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switch (err) {
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case PCIBIOS_SUCCESSFUL:
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case PCIBIOS_SUCCESSFUL:
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@ -202,7 +202,7 @@ out:
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pci_name(dev), size, offset, value);
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pci_name(dev), size, offset, value);
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*ret_val = value;
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*ret_val = value;
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return pcibios_err_to_errno(err);
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return xen_pcibios_err_to_errno(err);
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}
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}
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int xen_pcibk_config_write(struct pci_dev *dev, int offset, int size, u32 value)
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int xen_pcibk_config_write(struct pci_dev *dev, int offset, int size, u32 value)
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@ -290,7 +290,7 @@ int xen_pcibk_config_write(struct pci_dev *dev, int offset, int size, u32 value)
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}
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}
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}
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}
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return pcibios_err_to_errno(err);
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return xen_pcibios_err_to_errno(err);
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}
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}
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void xen_pcibk_config_free_dyn_fields(struct pci_dev *dev)
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void xen_pcibk_config_free_dyn_fields(struct pci_dev *dev)
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@ -474,6 +474,32 @@ static inline bool pci_dev_msi_enabled(struct pci_dev *pci_dev) { return false;
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#define PCIBIOS_SET_FAILED 0x88
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#define PCIBIOS_SET_FAILED 0x88
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#define PCIBIOS_BUFFER_TOO_SMALL 0x89
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#define PCIBIOS_BUFFER_TOO_SMALL 0x89
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/*
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* Translate above to generic errno for passing back through non-pci.
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*/
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static inline int pcibios_err_to_errno(int err)
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{
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if (err <= PCIBIOS_SUCCESSFUL)
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return err; /* Assume already errno */
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switch (err) {
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case PCIBIOS_FUNC_NOT_SUPPORTED:
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return -ENOENT;
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case PCIBIOS_BAD_VENDOR_ID:
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return -EINVAL;
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case PCIBIOS_DEVICE_NOT_FOUND:
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return -ENODEV;
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case PCIBIOS_BAD_REGISTER_NUMBER:
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return -EFAULT;
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case PCIBIOS_SET_FAILED:
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return -EIO;
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case PCIBIOS_BUFFER_TOO_SMALL:
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return -ENOSPC;
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}
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return -ENOTTY;
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}
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/* Low-level architecture-dependent routines */
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/* Low-level architecture-dependent routines */
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struct pci_ops {
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struct pci_ops {
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