Release 4.7 drivers/scsi/csiostor/csio_defs.h
/*
* 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);
}
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static inline void writeq(u64 val, void __iomem *addr)
{
writel(val, addr);
writel(val >> 32, addr + 4);
}
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#endif
static inline int
csio_list_deleted(struct list_head *list)
{
return ((list->next == list) && (list->prev == list));
}
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#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;
}
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static inline void
csio_init_state(struct csio_sm *smp, void *state)
{
csio_set_state(smp, state);
}
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static inline void
csio_post_event(void *smp, uint32_t evt)
{
((struct csio_sm *)smp)->sm_state(smp, evt);
}
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static inline csio_sm_state_t
csio_get_state(void *smp)
{
return ((struct csio_sm *)smp)->sm_state;
}
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static inline bool
csio_match_state(void *smp, void *state)
{
return (csio_get_state(smp) == (csio_sm_state_t)state);
}
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#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__ */
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