Moved, renamed, and deleted files

The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.

1 files changed, 200 insertions, 0 deletions

diff --git a/include/scsi/osd_ore.h b/include/scsi/osd_ore.h
new file mode 100644
index 00000000..a5f9b960
--- /dev/null
+++ b/include/scsi/osd_ore.h
@@ -0,0 +1,200 @@
+/*
+ * Copyright (C) 2011
+ * Boaz Harrosh <bharrosh@panasas.com>
+ *
+ * Public Declarations of the ORE API
+ *
+ * This file is part of the ORE (Object Raid Engine) library.
+ *
+ * ORE is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation. (GPL v2)
+ *
+ * ORE 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with the ORE; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+#ifndef __ORE_H__
+#define __ORE_H__
+
+#include <scsi/osd_initiator.h>
+#include <scsi/osd_attributes.h>
+#include <scsi/osd_sec.h>
+#include <linux/pnfs_osd_xdr.h>
+#include <linux/bug.h>
+
+struct ore_comp {
+	struct osd_obj_id	obj;
+	u8			cred[OSD_CAP_LEN];
+};
+
+struct ore_layout {
+	/* Our way of looking at the data_map */
+	enum pnfs_osd_raid_algorithm4
+		 raid_algorithm;
+	unsigned stripe_unit;
+	unsigned mirrors_p1;
+
+	unsigned group_width;
+	unsigned parity;
+	u64	 group_depth;
+	unsigned group_count;
+
+	/* Cached often needed calculations filled in by
+	 * ore_verify_layout
+	 */
+	unsigned long max_io_length;	/* Max length that should be passed to
+					 * ore_get_rw_state
+					 */
+};
+
+struct ore_dev {
+	struct osd_dev *od;
+};
+
+struct ore_components {
+	unsigned	first_dev;		/* First logical device no    */
+	unsigned	numdevs;		/* Num of devices in array    */
+	/* If @single_comp == EC_SINGLE_COMP, @comps points to a single
+	 * component. else there are @numdevs components
+	 */
+	enum EC_COMP_USAGE {
+		EC_SINGLE_COMP = 0, EC_MULTPLE_COMPS = 0xffffffff
+	}		single_comp;
+	struct ore_comp	*comps;
+
+	/* Array of pointers to ore_dev-* . User will usually have these pointed
+	 * too a bigger struct which contain an "ore_dev ored" member and use
+	 * container_of(oc->ods[i], struct foo_dev, ored) to access the bigger
+	 * structure.
+	 */
+	struct ore_dev	**ods;
+};
+
+/* ore_comp_dev Recievies a logical device index */
+static inline struct osd_dev *ore_comp_dev(
+	const struct ore_components *oc, unsigned i)
+{
+	BUG_ON((i < oc->first_dev) || (oc->first_dev + oc->numdevs <= i));
+	return oc->ods[i - oc->first_dev]->od;
+}
+
+static inline void ore_comp_set_dev(
+	struct ore_components *oc, unsigned i, struct osd_dev *od)
+{
+	oc->ods[i - oc->first_dev]->od = od;
+}
+
+struct ore_striping_info {
+	u64 offset;
+	u64 obj_offset;
+	u64 length;
+	u64 first_stripe_start; /* only used in raid writes */
+	u64 M; /* for truncate */
+	unsigned bytes_in_stripe;
+	unsigned dev;
+	unsigned par_dev;
+	unsigned unit_off;
+	unsigned cur_pg;
+	unsigned cur_comp;
+};
+
+struct ore_io_state;
+typedef void (*ore_io_done_fn)(struct ore_io_state *ios, void *private);
+struct _ore_r4w_op {
+	/* @Priv given here is passed ios->private */
+	struct page * (*get_page)(void *priv, u64 page_index, bool *uptodate);
+	void (*put_page)(void *priv, struct page *page);
+};
+
+struct ore_io_state {
+	struct kref		kref;
+	struct ore_striping_info si;
+
+	void			*private;
+	ore_io_done_fn	done;
+
+	struct ore_layout	*layout;
+	struct ore_components	*oc;
+
+	/* Global read/write IO*/
+	loff_t			offset;
+	unsigned long		length;
+	void			*kern_buff;
+
+	struct page		**pages;
+	unsigned		nr_pages;
+	unsigned		pgbase;
+	unsigned		pages_consumed;
+
+	/* Attributes */
+	unsigned		in_attr_len;
+	struct osd_attr		*in_attr;
+	unsigned		out_attr_len;
+	struct osd_attr		*out_attr;
+
+	bool			reading;
+
+	/* House keeping of Parity pages */
+	bool			extra_part_alloc;
+	struct page		**parity_pages;
+	unsigned		max_par_pages;
+	unsigned		cur_par_page;
+	unsigned		sgs_per_dev;
+	struct __stripe_pages_2d *sp2d;
+	struct ore_io_state	 *ios_read_4_write;
+	const struct _ore_r4w_op *r4w;
+
+	/* Variable array of size numdevs */
+	unsigned numdevs;
+	struct ore_per_dev_state {
+		struct osd_request *or;
+		struct bio *bio;
+		loff_t offset;
+		unsigned length;
+		unsigned last_sgs_total;
+		unsigned dev;
+		struct osd_sg_entry *sglist;
+		unsigned cur_sg;
+	} per_dev[];
+};
+
+static inline unsigned ore_io_state_size(unsigned numdevs)
+{
+	return sizeof(struct ore_io_state) +
+		sizeof(struct ore_per_dev_state) * numdevs;
+}
+
+/* ore.c */
+int ore_verify_layout(unsigned total_comps, struct ore_layout *layout);
+void ore_calc_stripe_info(struct ore_layout *layout, u64 file_offset,
+			  u64 length, struct ore_striping_info *si);
+int ore_get_rw_state(struct ore_layout *layout, struct ore_components *comps,
+		     bool is_reading, u64 offset, u64 length,
+		     struct ore_io_state **ios);
+int ore_get_io_state(struct ore_layout *layout, struct ore_components *comps,
+		     struct ore_io_state **ios);
+void ore_put_io_state(struct ore_io_state *ios);
+
+typedef void (*ore_on_dev_error)(struct ore_io_state *ios, struct ore_dev *od,
+	unsigned dev_index, enum osd_err_priority oep,
+	u64 dev_offset, u64  dev_len);
+int ore_check_io(struct ore_io_state *ios, ore_on_dev_error rep);
+
+int ore_create(struct ore_io_state *ios);
+int ore_remove(struct ore_io_state *ios);
+int ore_write(struct ore_io_state *ios);
+int ore_read(struct ore_io_state *ios);
+int ore_truncate(struct ore_layout *layout, struct ore_components *comps,
+		 u64 size);
+
+int extract_attr_from_ios(struct ore_io_state *ios, struct osd_attr *attr);
+
+extern const struct osd_attr g_attr_logical_length;
+
+#endif