Merge from vendor branch Linux:

Import of Linux 2.2.12 subset (ipv4 stack and related)

1 files changed, 85 insertions, 0 deletions

diff --git a/pfinet/linux-src/include/linux/nbd.h b/pfinet/linux-src/include/linux/nbd.h
new file mode 100644
index 00000000..c2c0431f
--- /dev/null
+++ b/pfinet/linux-src/include/linux/nbd.h
@@ -0,0 +1,85 @@
+#ifndef LINUX_NBD_H
+#define LINUX_NBD_H
+
+#define NBD_SET_SOCK	_IO( 0xab, 0 )
+#define NBD_SET_BLKSIZE	_IO( 0xab, 1 )
+#define NBD_SET_SIZE	_IO( 0xab, 2 )
+#define NBD_DO_IT	_IO( 0xab, 3 )
+#define NBD_CLEAR_SOCK	_IO( 0xab, 4 )
+#define NBD_CLEAR_QUE	_IO( 0xab, 5 )
+#define NBD_PRINT_DEBUG	_IO( 0xab, 6 )
+#define NBD_SET_SIZE_BLOCKS	_IO( 0xab, 7 )
+
+#ifdef MAJOR_NR
+
+#include <linux/locks.h>
+#include <asm/semaphore.h>
+
+#define LOCAL_END_REQUEST
+
+#include <linux/blk.h>
+
+#ifdef PARANOIA
+extern int requests_in;
+extern int requests_out;
+#endif
+
+static void 
+nbd_end_request(struct request *req)
+{
+#ifdef PARANOIA
+	requests_out++;
+#endif
+	if (end_that_request_first( req, !req->errors, "nbd" ))
+		return;
+	end_that_request_last( req );
+}
+
+#define MAX_NBD 128
+
+struct nbd_device {
+	int refcnt;	
+	int flags;
+	int harderror;		/* Code of hard error			*/
+#define NBD_READ_ONLY 0x0001
+#define NBD_WRITE_NOCHK 0x0002
+#define NBD_INITIALISED 0x0004
+	struct socket * sock;
+	struct file * file; 		/* If == NULL, device is not ready, yet	*/
+	int magic;			/* FIXME: not if debugging is off	*/
+	struct request *head;	/* Requests are added here...			*/
+	struct request *tail;
+	struct semaphore queue_lock;
+};
+#endif
+
+/* This now IS in some kind of include file...	*/
+
+/* These are send over network in request/reply magic field */
+
+#define NBD_REQUEST_MAGIC 0x25609513
+#define NBD_REPLY_MAGIC 0x67446698
+/* Do *not* use magics: 0x12560953 0x96744668. */
+
+/*
+ * This is packet used for communication between client and
+ * server. All data are in network byte order.
+ */
+struct nbd_request {
+	u32 magic;
+	u32 type;	/* == READ || == WRITE 	*/
+	char handle[8];
+	u64 from;
+	u32 len;
+}
+#ifdef __GNUC__
+	__attribute__ ((packed))
+#endif
+;
+
+struct nbd_reply {
+	u32 magic;
+	u32 error;		/* 0 = ok, else error	*/
+	char handle[8];		/* handle you got from request	*/
+};
+#endif