satip-axe/kernel/drivers/scsi/bfa/include/aen/bfa_aen.h
2015-03-26 17:24:57 +01:00

93 lines
2.2 KiB
C

/*
* Copyright (c) 2005-2009 Brocade Communications Systems, Inc.
* All rights reserved
* www.brocade.com
*
* Linux driver for Brocade 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.
*/
#ifndef __BFA_AEN_H__
#define __BFA_AEN_H__
#include "defs/bfa_defs_aen.h"
#define BFA_AEN_MAX_ENTRY 512
extern s32 bfa_aen_max_cfg_entry;
struct bfa_aen_s {
void *bfad;
s32 max_entry;
s32 write_index;
s32 read_index;
u32 bfad_num;
u32 seq_num;
void (*aen_cb_notify)(void *bfad);
void (*gettimeofday)(struct bfa_timeval_s *tv);
struct bfa_trc_mod_s *trcmod;
struct bfa_aen_entry_s list[BFA_AEN_MAX_ENTRY]; /* Must be the last */
};
/**
* Public APIs
*/
static inline void
bfa_aen_set_max_cfg_entry(int max_entry)
{
bfa_aen_max_cfg_entry = max_entry;
}
static inline s32
bfa_aen_get_max_cfg_entry(void)
{
return bfa_aen_max_cfg_entry;
}
static inline s32
bfa_aen_get_meminfo(void)
{
return (sizeof(struct bfa_aen_entry_s) * bfa_aen_get_max_cfg_entry());
}
static inline s32
bfa_aen_get_wi(struct bfa_aen_s *aen)
{
return aen->write_index;
}
static inline s32
bfa_aen_get_ri(struct bfa_aen_s *aen)
{
return aen->read_index;
}
static inline s32
bfa_aen_fetch_count(struct bfa_aen_s *aen, s32 read_index)
{
return ((aen->write_index + aen->max_entry) - read_index)
% aen->max_entry;
}
s32 bfa_aen_init(struct bfa_aen_s *aen, struct bfa_trc_mod_s *trcmod,
void *bfad, u32 inst_id, void (*aen_cb_notify)(void *),
void (*gettimeofday)(struct bfa_timeval_s *));
s32 bfa_aen_post(struct bfa_aen_s *aen, enum bfa_aen_category aen_category,
int aen_type, union bfa_aen_data_u *aen_data);
s32 bfa_aen_fetch(struct bfa_aen_s *aen, struct bfa_aen_entry_s *aen_entry,
s32 entry_space, s32 rii, s32 *ri_arr,
s32 ri_arr_cnt);
s32 bfa_aen_get_inst(struct bfa_aen_s *aen);
#endif /* __BFA_AEN_H__ */