[SCSI] csiostor: Chelsio FCoE offload driver

Signed-off-by: Naresh Kumar Inna <naresh@chelsio.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-11-15 22:41:18 +05:30
parent ce91a9234c
commit a3667aaed5
22 changed files with 19175 additions and 0 deletions
--- a/drivers/scsi/csiostor/csio_defs.h
+++ b/drivers/scsi/csiostor/csio_defs.h
@@ -0,0 +1,121 @@
+/*
+ * This file is part of the Chelsio FCoE driver for Linux.
+ *
+ * Copyright (c) 2008-2012 Chelsio Communications, Inc. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#ifndef __CSIO_DEFS_H__
+#define __CSIO_DEFS_H__
+
+#include <linux/kernel.h>
+#include <linux/stddef.h>
+#include <linux/timer.h>
+#include <linux/list.h>
+#include <linux/bug.h>
+#include <linux/pci.h>
+#include <linux/jiffies.h>
+
+#define CSIO_INVALID_IDX		0xFFFFFFFF
+#define CSIO_INC_STATS(elem, val)	((elem)->stats.val++)
+#define CSIO_DEC_STATS(elem, val)	((elem)->stats.val--)
+#define CSIO_VALID_WWN(__n)		((*__n >> 4) == 0x5 ? true : false)
+#define CSIO_DID_MASK			0xFFFFFF
+#define CSIO_WORD_TO_BYTE		4
+
+#ifndef readq
+static inline u64 readq(void __iomem *addr)
+{
+	return readl(addr) + ((u64)readl(addr + 4) << 32);
+}
+
+static inline void writeq(u64 val, void __iomem *addr)
+{
+	writel(val, addr);
+	writel(val >> 32, addr + 4);
+}
+#endif
+
+static inline int
+csio_list_deleted(struct list_head *list)
+{
+	return ((list->next == list) && (list->prev == list));
+}
+
+#define csio_list_next(elem)	(((struct list_head *)(elem))->next)
+#define csio_list_prev(elem)	(((struct list_head *)(elem))->prev)
+
+/* State machine */
+typedef void (*csio_sm_state_t)(void *, uint32_t);
+
+struct csio_sm {
+	struct list_head	sm_list;
+	csio_sm_state_t		sm_state;
+};
+
+static inline void
+csio_set_state(void *smp, void *state)
+{
+	((struct csio_sm *)smp)->sm_state = (csio_sm_state_t)state;
+}
+
+static inline void
+csio_init_state(struct csio_sm *smp, void *state)
+{
+	csio_set_state(smp, state);
+}
+
+static inline void
+csio_post_event(void *smp, uint32_t evt)
+{
+	((struct csio_sm *)smp)->sm_state(smp, evt);
+}
+
+static inline csio_sm_state_t
+csio_get_state(void *smp)
+{
+	return ((struct csio_sm *)smp)->sm_state;
+}
+
+static inline bool
+csio_match_state(void *smp, void *state)
+{
+	return (csio_get_state(smp) == (csio_sm_state_t)state);
+}
+
+#define	CSIO_ASSERT(cond)		BUG_ON(!(cond))
+
+#ifdef __CSIO_DEBUG__
+#define CSIO_DB_ASSERT(__c)		CSIO_ASSERT((__c))
+#else
+#define CSIO_DB_ASSERT(__c)
+#endif
+
+#endif /* ifndef __CSIO_DEFS_H__ */