Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 99 insertions, 0 deletions

diff --git a/drivers/message/i2o/i2o_block.h b/drivers/message/i2o/i2o_block.h
new file mode 100644
index 000000000000..ddd9a15679c0
--- /dev/null
+++ b/drivers/message/i2o/i2o_block.h
@@ -0,0 +1,99 @@
+/*
+ *	Block OSM structures/API
+ *
+ * 	Copyright (C) 1999-2002	Red Hat Software
+ *
+ *	Written by Alan Cox, Building Number Three Ltd
+ *
+ *	This program is free software; you can redistribute it and/or modify it
+ *	under the terms of the GNU General Public License as published by the
+ *	Free Software Foundation; either version 2 of the License, or (at your
+ *	option) any later version.
+ *
+ *	This program is distributed in the hope that it will be useful, but
+ *	WITHOUT ANY WARRANTY; without even the implied warranty of
+ *	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *	General Public License for more details.
+ *
+ *	For the purpose of avoiding doubt the preferred form of the work
+ *	for making modifications shall be a standards compliant form such
+ *	gzipped tar and not one requiring a proprietary or patent encumbered
+ *	tool to unpack.
+ *
+ *	Fixes/additions:
+ *		Steve Ralston:
+ *			Multiple device handling error fixes,
+ *			Added a queue depth.
+ *		Alan Cox:
+ *			FC920 has an rmw bug. Dont or in the end marker.
+ *			Removed queue walk, fixed for 64bitness.
+ *			Rewrote much of the code over time
+ *			Added indirect block lists
+ *			Handle 64K limits on many controllers
+ *			Don't use indirects on the Promise (breaks)
+ *			Heavily chop down the queue depths
+ *		Deepak Saxena:
+ *			Independent queues per IOP
+ *			Support for dynamic device creation/deletion
+ *			Code cleanup
+ *	    		Support for larger I/Os through merge* functions
+ *			(taken from DAC960 driver)
+ *		Boji T Kannanthanam:
+ *			Set the I2O Block devices to be detected in increasing
+ *			order of TIDs during boot.
+ *			Search and set the I2O block device that we boot off
+ *			from as the first device to be claimed (as /dev/i2o/hda)
+ *			Properly attach/detach I2O gendisk structure from the
+ *			system gendisk list. The I2O block devices now appear in
+ *			/proc/partitions.
+ *		Markus Lidel <Markus.Lidel@shadowconnect.com>:
+ *			Minor bugfixes for 2.6.
+ */
+
+#ifndef I2O_BLOCK_OSM_H
+#define I2O_BLOCK_OSM_H
+
+#define I2O_BLOCK_RETRY_TIME HZ/4
+#define I2O_BLOCK_MAX_OPEN_REQUESTS 50
+
+/* I2O Block OSM mempool struct */
+struct i2o_block_mempool {
+	kmem_cache_t	*slab;
+	mempool_t	*pool;
+};
+
+/* I2O Block device descriptor */
+struct i2o_block_device {
+	struct i2o_device *i2o_dev;	/* pointer to I2O device */
+	struct gendisk *gd;
+	spinlock_t lock;		/* queue lock */
+	struct list_head open_queue;	/* list of transfered, but unfinished
+					   requests */
+	unsigned int open_queue_depth;	/* number of requests in the queue */
+
+	int rcache;			/* read cache flags */
+	int wcache;			/* write cache flags */
+	int flags;
+	int power;			/* power state */
+	int media_change_flag;		/* media changed flag */
+};
+
+/* I2O Block device request */
+struct i2o_block_request
+{
+	struct list_head queue;
+	struct request *req;		/* corresponding request */
+	struct i2o_block_device *i2o_blk_dev;	/* I2O block device */
+	int sg_dma_direction;		/* direction of DMA buffer read/write */
+	int sg_nents;			/* number of SG elements */
+	struct scatterlist sg_table[I2O_MAX_SEGMENTS]; /* SG table */
+};
+
+/* I2O Block device delayed request */
+struct i2o_block_delayed_request
+{
+	struct work_struct work;
+	struct request_queue *queue;
+};
+
+#endif