Release 4.7 drivers/scsi/bfa/bfa_cs.h

/*
 * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
 * Copyright (c) 2014- QLogic Corporation.
 * All rights reserved
 * www.qlogic.com
 *
 * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License (GPL) Version 2 as
 * published by the Free Software Foundation
 *
 * 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.
 */

/*
 *  bfa_cs.h BFA common services
 */

#ifndef __BFA_CS_H__

#define __BFA_CS_H__

#include "bfad_drv.h"

/*
 * BFA TRC
 */

#ifndef BFA_TRC_MAX

#define BFA_TRC_MAX	(4 * 1024)
#endif


#define BFA_TRC_TS(_trcm)                               \
	({                                              \
                struct timeval tv;                      \
                                                        \
                do_gettimeofday(&tv);                   \
                (tv.tv_sec*1000000+tv.tv_usec);         \
        })

#ifndef BFA_TRC_TS

#define BFA_TRC_TS(_trcm)	((_trcm)->ticks++)
#endif


struct bfa_trc_s {
#ifdef __BIG_ENDIAN
	
u16	fileno;
	
u16	line;
#else
	u16	line;
	u16	fileno;
#endif
	
u32	timestamp;
	union {
		struct {
			
u32	rsvd;
			
u32	u32;
		} 
u32;
		
u64	u64;
	} 
data;
};


struct bfa_trc_mod_s {
	
u32	head;
	
u32	tail;
	
u32	ntrc;
	
u32	stopped;
	
u32	ticks;
	
u32	rsvd[3];
	
struct bfa_trc_s trc[BFA_TRC_MAX];
};

enum {
	
BFA_TRC_HAL  = 1,	/*  BFA modules */
	
BFA_TRC_FCS  = 2,	/*  BFA FCS modules */
	
BFA_TRC_LDRV = 3,	/*  Linux driver modules */
	
BFA_TRC_CNA  = 4,	/*  Common modules */
};

#define BFA_TRC_MOD_SH	10

#define BFA_TRC_MOD(__mod)	((BFA_TRC_ ## __mod) << BFA_TRC_MOD_SH)

/*
 * Define a new tracing file (module). Module should match one defined above.
 */

#define BFA_TRC_FILE(__mod, __submod)					\
	static int __trc_fileno = ((BFA_TRC_ ## __mod ## _ ## __submod) | \
                                                 BFA_TRC_MOD(__mod))



#define bfa_trc32(_trcp, _data)	\
	__bfa_trc((_trcp)->trcmod, __trc_fileno, __LINE__, (u32)_data)

#define bfa_trc(_trcp, _data)	\
	__bfa_trc((_trcp)->trcmod, __trc_fileno, __LINE__, (u64)_data)


static inline void

bfa_trc_init(struct bfa_trc_mod_s *trcm)
{
	trcm->head = trcm->tail = trcm->stopped = 0;
	trcm->ntrc = BFA_TRC_MAX;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
krishna gudipati
krishna gudipati
32
100.00%
1
100.00%
Total
32
100.00%
1
100.00%


static inline void

bfa_trc_stop(struct bfa_trc_mod_s *trcm)
{
	trcm->stopped = 1;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
krishna gudipati
krishna gudipati
18
100.00%
1
100.00%
Total
18
100.00%
1
100.00%

void
__bfa_trc(struct bfa_trc_mod_s *trcm, int fileno, int line, u64 data);

void
__bfa_trc32(struct bfa_trc_mod_s *trcm, int fileno, int line, u32 data);


#define bfa_sm_fault(__mod, __event)	do {                            \
        bfa_trc(__mod, (((u32)0xDEAD << 16) | __event));                \
        printk(KERN_ERR "Assertion failure: %s:%d: %d",                 \
                __FILE__, __LINE__, (__event));                         \
} while (0)

/* BFA queue definitions */

#define bfa_q_first(_q) ((void *)(((struct list_head *) (_q))->next))

#define bfa_q_next(_qe) (((struct list_head *) (_qe))->next)

#define bfa_q_prev(_qe) (((struct list_head *) (_qe))->prev)

/*
 * bfa_q_qe_init - to initialize a queue element
 */

#define bfa_q_qe_init(_qe) {                               \
        bfa_q_next(_qe) = (struct list_head *) NULL;    \
        bfa_q_prev(_qe) = (struct list_head *) NULL;    \
}

/*
 * bfa_q_deq - dequeue an element from head of the queue
 */

#define bfa_q_deq(_q, _qe) do {                                            \
        if (!list_empty(_q)) {                                          \
                (*((struct list_head **) (_qe))) = bfa_q_next(_q);      \
                bfa_q_prev(bfa_q_next(*((struct list_head **) _qe))) =  \
                                (struct list_head *) (_q);              \
                bfa_q_next(_q) = bfa_q_next(*((struct list_head **) _qe));\
        } else {                                                        \
                *((struct list_head **) (_qe)) = (struct list_head *) NULL;\
        }                                                               \
} while (0)

/*
 * bfa_q_deq_tail - dequeue an element from tail of the queue
 */

#define bfa_q_deq_tail(_q, _qe) {                                       \
        if (!list_empty(_q)) {                                          \
                *((struct list_head **) (_qe)) = bfa_q_prev(_q);        \
                bfa_q_next(bfa_q_prev(*((struct list_head **) _qe))) =  \
                        (struct list_head *) (_q);                      \
                bfa_q_prev(_q) = bfa_q_prev(*(struct list_head **) _qe);\
        } else {                                                        \
                *((struct list_head **) (_qe)) = (struct list_head *) NULL;\
        }                                                               \
}


static inline int

bfa_q_is_on_q_func(struct list_head *q, struct list_head *qe)
{
	struct list_head        *tqe;

	tqe = bfa_q_next(q);
	while (tqe != q) {
		if (tqe == qe)
			return 1;
		tqe = bfa_q_next(tqe);
		if (tqe == NULL)
			break;
	}
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
krishna gudipati
krishna gudipati
63
100.00%
1
100.00%
Total
63
100.00%
1
100.00%


#define bfa_q_is_on_q(_q, _qe)      \
	bfa_q_is_on_q_func(_q, (struct list_head *)(_qe))

/*
 * @ BFA state machine interfaces
 */


typedef void (*bfa_sm_t)(void *sm, int event);

/*
 * oc - object class eg. bfa_ioc
 * st - state, eg. reset
 * otype - object type, eg. struct bfa_ioc_s
 * etype - object type, eg. enum ioc_event
 */

#define bfa_sm_state_decl(oc, st, otype, etype)		\
	static void oc ## _sm_ ## st(otype * fsm, etype event)


#define bfa_sm_set_state(_sm, _state)	((_sm)->sm = (bfa_sm_t)(_state))

#define bfa_sm_send_event(_sm, _event)	((_sm)->sm((_sm), (_event)))

#define bfa_sm_get_state(_sm)		((_sm)->sm)

#define bfa_sm_cmp_state(_sm, _state)	((_sm)->sm == (bfa_sm_t)(_state))

/*
 * For converting from state machine function to state encoding.
 */

struct bfa_sm_table_s {
	
bfa_sm_t	sm;	/*  state machine function      */
	
int		state;	/*  state machine encoding      */
	
char		*name;	/*  state name for display      */
};

#define BFA_SM(_sm)	((bfa_sm_t)(_sm))

/*
 * State machine with entry actions.
 */

typedef void (*bfa_fsm_t)(void *fsm, int event);

/*
 * oc - object class eg. bfa_ioc
 * st - state, eg. reset
 * otype - object type, eg. struct bfa_ioc_s
 * etype - object type, eg. enum ioc_event
 */

#define bfa_fsm_state_decl(oc, st, otype, etype)		\
	static void oc ## _sm_ ## st(otype * fsm, etype event);      \
        static void oc ## _sm_ ## st ## _entry(otype * fsm)


#define bfa_fsm_set_state(_fsm, _state) do {    \
        (_fsm)->fsm = (bfa_fsm_t)(_state);      \
        _state ## _entry(_fsm);      \
} while (0)


#define bfa_fsm_send_event(_fsm, _event)	((_fsm)->fsm((_fsm), (_event)))

#define bfa_fsm_get_state(_fsm)			((_fsm)->fsm)

#define bfa_fsm_cmp_state(_fsm, _state)		\
	((_fsm)->fsm == (bfa_fsm_t)(_state))


static inline int

bfa_sm_to_state(struct bfa_sm_table_s *smt, bfa_sm_t sm)
{
	int	i = 0;

	while (smt[i].sm && smt[i].sm != sm)
		i++;
	return smt[i].state;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
krishna gudipati
krishna gudipati
49
100.00%
1
100.00%
Total
49
100.00%
1
100.00%

/*
 * @ Generic wait counter.
 */


typedef void (*bfa_wc_resume_t) (void *cbarg);


struct bfa_wc_s {
	
bfa_wc_resume_t wc_resume;
	
void		*wc_cbarg;
	
int		wc_count;
};


static inline void

bfa_wc_up(struct bfa_wc_s *wc)
{
	wc->wc_count++;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
krishna gudipati
krishna gudipati
17
100.00%
1
100.00%
Total
17
100.00%
1
100.00%


static inline void

bfa_wc_down(struct bfa_wc_s *wc)
{
	wc->wc_count--;
	if (wc->wc_count == 0)
		wc->wc_resume(wc->wc_cbarg);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
krishna gudipati
krishna gudipati
34
100.00%
1
100.00%
Total
34
100.00%
1
100.00%

/*
 * Initialize a waiting counter.
 */

static inline void

bfa_wc_init(struct bfa_wc_s *wc, bfa_wc_resume_t wc_resume, void *wc_cbarg)
{
	wc->wc_resume = wc_resume;
	wc->wc_cbarg = wc_cbarg;
	wc->wc_count = 0;
	bfa_wc_up(wc);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
krishna gudipati
krishna gudipati
42
100.00%
1
100.00%
Total
42
100.00%
1
100.00%

/*
 * Wait for counter to reach zero
 */

static inline void

bfa_wc_wait(struct bfa_wc_s *wc)
{
	bfa_wc_down(wc);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
krishna gudipati
krishna gudipati
17
100.00%
1
100.00%
Total
17
100.00%
1
100.00%


static inline void

wwn2str(char *wwn_str, u64 wwn)
{
	union {
		u64 wwn;
		u8 byte[8];
	} w;

	w.wwn = wwn;
	sprintf(wwn_str, "%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x", w.byte[0],
		w.byte[1], w.byte[2], w.byte[3], w.byte[4], w.byte[5],
		w.byte[6], w.byte[7]);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
maggie zhang
maggie zhang
97
100.00%
1
100.00%
Total
97
100.00%
1
100.00%


static inline void

fcid2str(char *fcid_str, u32 fcid)
{
	union {
		u32 fcid;
		u8 byte[4];
	} f;

	f.fcid = fcid;
	sprintf(fcid_str, "%02x:%02x:%02x", f.byte[1], f.byte[2], f.byte[3]);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
maggie zhang
maggie zhang
62
100.00%
1
100.00%
Total
62
100.00%
1
100.00%


#define bfa_swap_3b(_x)				\
	((((_x) & 0xff) << 16) |                \
        ((_x) & 0x00ff00) |                     \
        (((_x) & 0xff0000) >> 16))

#ifndef __BIG_ENDIAN

#define bfa_hton3b(_x)  bfa_swap_3b(_x)
#else

#define bfa_hton3b(_x)  (_x)
#endif


#define bfa_ntoh3b(_x)  bfa_hton3b(_x)

#endif /* __BFA_CS_H__ */
Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
krishna gudipati
krishna gudipati
728
76.79%
2
28.57%
maggie zhang
maggie zhang
205
21.62%
1
14.29%
jing huang
jing huang
12
1.27%
2
28.57%
denys vlasenko
denys vlasenko
2
0.21%
1
14.29%
anil gurumurthy
anil gurumurthy
1
0.11%
1
14.29%
Total
948
100.00%
7
100.00%
  
Directory: drivers/scsi/bfa

Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.