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-rw-r--r--src/include/ipxe/sanboot.h91
1 files changed, 82 insertions, 9 deletions
diff --git a/src/include/ipxe/sanboot.h b/src/include/ipxe/sanboot.h
index d27452cb6..913282eb5 100644
--- a/src/include/ipxe/sanboot.h
+++ b/src/include/ipxe/sanboot.h
@@ -1,20 +1,93 @@
#ifndef _IPXE_SANBOOT_H
#define _IPXE_SANBOOT_H
+/** @file
+ *
+ * iPXE sanboot API
+ *
+ * The sanboot API provides methods for hooking, unhooking,
+ * describing, and booting from SAN devices.
+ *
+ * The standard methods (readl()/writel() etc.) do not strictly check
+ * the type of the address parameter; this is because traditional
+ * usage does not necessarily provide the correct pointer type. For
+ * example, code written for ISA devices at fixed I/O addresses (such
+ * as the keyboard controller) tend to use plain integer constants for
+ * the address parameter.
+ */
+
FILE_LICENCE ( GPL2_OR_LATER );
-#include <ipxe/tables.h>
+#include <ipxe/api.h>
+#include <config/sanboot.h>
+
+struct uri;
+
+/**
+ * Calculate static inline sanboot API function name
+ *
+ * @v _prefix Subsystem prefix
+ * @v _api_func API function
+ * @ret _subsys_func Subsystem API function
+ */
+#define SANBOOT_INLINE( _subsys, _api_func ) \
+ SINGLE_API_INLINE ( SANBOOT_PREFIX_ ## _subsys, _api_func )
+
+/**
+ * Provide a sanboot API implementation
+ *
+ * @v _prefix Subsystem prefix
+ * @v _api_func API function
+ * @v _func Implementing function
+ */
+#define PROVIDE_SANBOOT( _subsys, _api_func, _func ) \
+ PROVIDE_SINGLE_API ( SANBOOT_PREFIX_ ## _subsys, _api_func, _func )
+
+/**
+ * Provide a static inline sanboot API implementation
+ *
+ * @v _prefix Subsystem prefix
+ * @v _api_func API function
+ */
+#define PROVIDE_SANBOOT_INLINE( _subsys, _api_func ) \
+ PROVIDE_SINGLE_API_INLINE ( SANBOOT_PREFIX_ ## _subsys, _api_func )
+
+/* Include all architecture-independent sanboot API headers */
+#include <ipxe/null_sanboot.h>
+
+/* Include all architecture-dependent sanboot API headers */
+#include <bits/sanboot.h>
-struct sanboot_protocol {
- const char *prefix;
- int ( * boot ) ( const char *root_path );
-};
+/**
+ * Hook SAN device
+ *
+ * @v uri URI
+ * @v drive Requested drive number
+ * @ret drive Assigned drive number, or negative error
+ */
+int san_hook ( struct uri *uri, unsigned int drive );
-#define SANBOOT_PROTOCOLS \
- __table ( struct sanboot_protocol, "sanboot_protocols" )
+/**
+ * Unhook SAN device
+ *
+ * @v drive Drive number
+ */
+void san_unhook ( unsigned int drive );
-#define __sanboot_protocol __table_entry ( SANBOOT_PROTOCOLS, 01 )
+/**
+ * Attempt to boot from a SAN device
+ *
+ * @v drive Drive number
+ * @ret rc Return status code
+ */
+int san_boot ( unsigned int drive );
-extern int keep_san ( void );
+/**
+ * Describe SAN device for SAN-booted operating system
+ *
+ * @v drive Drive number
+ * @ret rc Return status code
+ */
+int san_describe ( unsigned int drive );
#endif /* _IPXE_SANBOOT_H */