1/* 2 * Copyright (c) 2005-2009 Brocade Communications Systems, Inc. 3 * All rights reserved 4 * www.brocade.com 5 * 6 * Linux driver for Brocade Fibre Channel Host Bus Adapter. 7 * 8 * This program is free software; you can redistribute it and/or modify it 9 * under the terms of the GNU General Public License (GPL) Version 2 as 10 * published by the Free Software Foundation 11 * 12 * This program is distributed in the hope that it will be useful, but 13 * WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 * General Public License for more details. 16 */ 17#ifndef __BFA_AEN_H__ 18#define __BFA_AEN_H__ 19 20#include "defs/bfa_defs_aen.h" 21#include "defs/bfa_defs_status.h" 22#include "cs/bfa_debug.h" 23 24#define BFA_AEN_MAX_ENTRY 512 25 26extern int bfa_aen_max_cfg_entry; 27struct bfa_aen_s { 28 void *bfad; 29 int max_entry; 30 int write_index; 31 int read_index; 32 int bfad_num; 33 int seq_num; 34 void (*aen_cb_notify)(void *bfad); 35 void (*gettimeofday)(struct bfa_timeval_s *tv); 36 struct bfa_trc_mod_s *trcmod; 37 int app_ri[BFA_AEN_MAX_APP]; /* For multiclient support */ 38 struct bfa_aen_entry_s list[BFA_AEN_MAX_ENTRY]; /* Must be the last */ 39}; 40 41 42/** 43 * Public APIs 44 */ 45static inline void 46bfa_aen_set_max_cfg_entry(int max_entry) 47{ 48 bfa_aen_max_cfg_entry = max_entry; 49} 50 51static inline int 52bfa_aen_get_max_cfg_entry(void) 53{ 54 return bfa_aen_max_cfg_entry; 55} 56 57static inline int 58bfa_aen_get_meminfo(void) 59{ 60 return sizeof(struct bfa_aen_entry_s) * bfa_aen_get_max_cfg_entry(); 61} 62 63static inline int 64bfa_aen_get_wi(struct bfa_aen_s *aen) 65{ 66 return aen->write_index; 67} 68 69static inline int 70bfa_aen_get_ri(struct bfa_aen_s *aen) 71{ 72 return aen->read_index; 73} 74 75static inline int 76bfa_aen_fetch_count(struct bfa_aen_s *aen, enum bfa_aen_app app_id) 77{ 78 bfa_assert((app_id < BFA_AEN_MAX_APP) && (app_id >= bfa_aen_app_bcu)); 79 return ((aen->write_index + aen->max_entry) - aen->app_ri[app_id]) 80 % aen->max_entry; 81} 82 83int bfa_aen_init(struct bfa_aen_s *aen, struct bfa_trc_mod_s *trcmod, 84 void *bfad, int bfad_num, void (*aen_cb_notify)(void *), 85 void (*gettimeofday)(struct bfa_timeval_s *)); 86 87void bfa_aen_post(struct bfa_aen_s *aen, enum bfa_aen_category aen_category, 88 int aen_type, union bfa_aen_data_u *aen_data); 89 90bfa_status_t bfa_aen_fetch(struct bfa_aen_s *aen, 91 struct bfa_aen_entry_s *aen_entry, 92 int entry_req, enum bfa_aen_app app_id, int *entry_ret); 93 94int bfa_aen_get_inst(struct bfa_aen_s *aen); 95 96#endif /* __BFA_AEN_H__ */ 97