This commit was manufactured by cvs2svn to create branch 'vserver'.

[linux-2.6.git] / include / xen / interface / io / pciif.h

diff --git a/include/xen/interface/io/pciif.h b/include/xen/interface/io/pciif.h
new file mode 100644 (file)
index 0000000..a1c9ab7
--- /dev/null
+++ b/include/xen/interface/io/pciif.h
@@ -0,0 +1,55 @@
+/*
+ * PCI Backend/Frontend Common Data Structures & Macros
+ *
+ *   Author: Ryan Wilson <hap9@epoch.ncsc.mil>
+ */
+#ifndef __XEN_PCI_COMMON_H__
+#define __XEN_PCI_COMMON_H__
+
+/* Be sure to bump this number if you change this file */
+#define XEN_PCI_MAGIC          "7"
+
+/* xen_pci_sharedinfo flags */
+#define _XEN_PCIF_active     (0)
+#define XEN_PCIF_active      (1<<_XEN_PCI_active)
+
+/* xen_pci_op commands */
+#define XEN_PCI_OP_conf_read    (0)
+#define XEN_PCI_OP_conf_write   (1)
+
+/* xen_pci_op error numbers */
+#define XEN_PCI_ERR_success          (0)
+#define XEN_PCI_ERR_dev_not_found   (-1)
+#define XEN_PCI_ERR_invalid_offset  (-2)
+#define XEN_PCI_ERR_access_denied   (-3)
+#define XEN_PCI_ERR_not_implemented (-4)
+/* XEN_PCI_ERR_op_failed - backend failed to complete the operation */
+#define XEN_PCI_ERR_op_failed       (-5)
+
+struct xen_pci_op {
+       /* IN: what action to perform: XEN_PCI_OP_* */
+       uint32_t cmd;
+
+       /* OUT: will contain an error number (if any) from errno.h */
+       int32_t err;
+
+       /* IN: which device to touch */
+       uint32_t domain; /* PCI Domain/Segment */
+       uint32_t bus;
+       uint32_t devfn;
+
+       /* IN: which configuration registers to touch */
+       int32_t offset;
+       int32_t size;
+
+       /* IN/OUT: Contains the result after a READ or the value to WRITE */
+       uint32_t value;
+};
+
+struct xen_pci_sharedinfo {
+       /* flags - XEN_PCIF_* */
+       uint32_t flags;
+       struct xen_pci_op op;
+};
+
+#endif /* __XEN_PCI_COMMON_H__ */