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authorKrishna Gudipati <kgudipat@brocade.com>2010-09-15 14:50:55 -0400
committerJames Bottomley <James.Bottomley@suse.de>2010-09-16 22:54:24 -0400
commita36c61f9025b8924f99f54d518763bee7aa84085 (patch)
treee1d58c382ad31fe1ad3c5f6bccde1b9df1d9fd8c /drivers/scsi/bfa/bfa.h
parentedaed859e63aac174fcc3fed81886b91bb124661 (diff)
[SCSI] bfa: cleanup driver
We have flattened the BFA hierarchy and also reduced the number of source and header files we used to have earlier. Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'drivers/scsi/bfa/bfa.h')
-rw-r--r--drivers/scsi/bfa/bfa.h438
1 files changed, 438 insertions, 0 deletions
diff --git a/drivers/scsi/bfa/bfa.h b/drivers/scsi/bfa/bfa.h
new file mode 100644
index 000000000000..ceaac65a91ff
--- /dev/null
+++ b/drivers/scsi/bfa/bfa.h
@@ -0,0 +1,438 @@
1/*
2 * Copyright (c) 2005-2010 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_H__
18#define __BFA_H__
19
20#include "bfa_os_inc.h"
21#include "bfa_cs.h"
22#include "bfa_plog.h"
23#include "bfa_defs_svc.h"
24#include "bfi.h"
25#include "bfa_ioc.h"
26
27struct bfa_s;
28
29typedef void (*bfa_isr_func_t) (struct bfa_s *bfa, struct bfi_msg_s *m);
30typedef void (*bfa_cb_cbfn_t) (void *cbarg, bfa_boolean_t complete);
31
32/**
33 * Interrupt message handlers
34 */
35void bfa_isr_unhandled(struct bfa_s *bfa, struct bfi_msg_s *m);
36void bfa_isr_bind(enum bfi_mclass mc, bfa_isr_func_t isr_func);
37
38/**
39 * Request and response queue related defines
40 */
41#define BFA_REQQ_NELEMS_MIN (4)
42#define BFA_RSPQ_NELEMS_MIN (4)
43
44#define bfa_reqq_pi(__bfa, __reqq) ((__bfa)->iocfc.req_cq_pi[__reqq])
45#define bfa_reqq_ci(__bfa, __reqq) \
46 (*(u32 *)((__bfa)->iocfc.req_cq_shadow_ci[__reqq].kva))
47
48#define bfa_reqq_full(__bfa, __reqq) \
49 (((bfa_reqq_pi(__bfa, __reqq) + 1) & \
50 ((__bfa)->iocfc.cfg.drvcfg.num_reqq_elems - 1)) == \
51 bfa_reqq_ci(__bfa, __reqq))
52
53#define bfa_reqq_next(__bfa, __reqq) \
54 (bfa_reqq_full(__bfa, __reqq) ? NULL : \
55 ((void *)((struct bfi_msg_s *)((__bfa)->iocfc.req_cq_ba[__reqq].kva) \
56 + bfa_reqq_pi((__bfa), (__reqq)))))
57
58#define bfa_reqq_produce(__bfa, __reqq) do { \
59 (__bfa)->iocfc.req_cq_pi[__reqq]++; \
60 (__bfa)->iocfc.req_cq_pi[__reqq] &= \
61 ((__bfa)->iocfc.cfg.drvcfg.num_reqq_elems - 1); \
62 bfa_reg_write((__bfa)->iocfc.bfa_regs.cpe_q_pi[__reqq], \
63 (__bfa)->iocfc.req_cq_pi[__reqq]); \
64 mmiowb(); \
65 } while (0)
66
67#define bfa_rspq_pi(__bfa, __rspq) \
68 (*(u32 *)((__bfa)->iocfc.rsp_cq_shadow_pi[__rspq].kva))
69
70#define bfa_rspq_ci(__bfa, __rspq) ((__bfa)->iocfc.rsp_cq_ci[__rspq])
71#define bfa_rspq_elem(__bfa, __rspq, __ci) \
72 (&((struct bfi_msg_s *)((__bfa)->iocfc.rsp_cq_ba[__rspq].kva))[__ci])
73
74#define CQ_INCR(__index, __size) do { \
75 (__index)++; \
76 (__index) &= ((__size) - 1); \
77} while (0)
78
79/**
80 * Queue element to wait for room in request queue. FIFO order is
81 * maintained when fullfilling requests.
82 */
83struct bfa_reqq_wait_s {
84 struct list_head qe;
85 void (*qresume) (void *cbarg);
86 void *cbarg;
87};
88
89/**
90 * Circular queue usage assignments
91 */
92enum {
93 BFA_REQQ_IOC = 0, /* all low-priority IOC msgs */
94 BFA_REQQ_FCXP = 0, /* all FCXP messages */
95 BFA_REQQ_LPS = 0, /* all lport service msgs */
96 BFA_REQQ_PORT = 0, /* all port messages */
97 BFA_REQQ_FLASH = 0, /* for flash module */
98 BFA_REQQ_DIAG = 0, /* for diag module */
99 BFA_REQQ_RPORT = 0, /* all port messages */
100 BFA_REQQ_SBOOT = 0, /* all san boot messages */
101 BFA_REQQ_QOS_LO = 1, /* all low priority IO */
102 BFA_REQQ_QOS_MD = 2, /* all medium priority IO */
103 BFA_REQQ_QOS_HI = 3, /* all high priority IO */
104};
105
106static inline void
107bfa_reqq_winit(struct bfa_reqq_wait_s *wqe, void (*qresume) (void *cbarg),
108 void *cbarg)
109{
110 wqe->qresume = qresume;
111 wqe->cbarg = cbarg;
112}
113
114#define bfa_reqq(__bfa, __reqq) (&(__bfa)->reqq_waitq[__reqq])
115
116/**
117 * static inline void
118 * bfa_reqq_wait(struct bfa_s *bfa, int reqq, struct bfa_reqq_wait_s *wqe)
119 */
120#define bfa_reqq_wait(__bfa, __reqq, __wqe) do { \
121 \
122 struct list_head *waitq = bfa_reqq(__bfa, __reqq); \
123 \
124 bfa_assert(((__reqq) < BFI_IOC_MAX_CQS)); \
125 bfa_assert((__wqe)->qresume && (__wqe)->cbarg); \
126 \
127 list_add_tail(&(__wqe)->qe, waitq); \
128 } while (0)
129
130#define bfa_reqq_wcancel(__wqe) list_del(&(__wqe)->qe)
131
132
133/**
134 * Generic BFA callback element.
135 */
136struct bfa_cb_qe_s {
137 struct list_head qe;
138 bfa_cb_cbfn_t cbfn;
139 bfa_boolean_t once;
140 u32 rsvd;
141 void *cbarg;
142};
143
144#define bfa_cb_queue(__bfa, __hcb_qe, __cbfn, __cbarg) do { \
145 (__hcb_qe)->cbfn = (__cbfn); \
146 (__hcb_qe)->cbarg = (__cbarg); \
147 list_add_tail(&(__hcb_qe)->qe, &(__bfa)->comp_q); \
148 } while (0)
149
150#define bfa_cb_dequeue(__hcb_qe) list_del(&(__hcb_qe)->qe)
151
152#define bfa_cb_queue_once(__bfa, __hcb_qe, __cbfn, __cbarg) do { \
153 (__hcb_qe)->cbfn = (__cbfn); \
154 (__hcb_qe)->cbarg = (__cbarg); \
155 if (!(__hcb_qe)->once) { \
156 list_add_tail(&(__hcb_qe)->qe, &(__bfa)->comp_q); \
157 (__hcb_qe)->once = BFA_TRUE; \
158 } \
159 } while (0)
160
161#define bfa_cb_queue_done(__hcb_qe) do { \
162 (__hcb_qe)->once = BFA_FALSE; \
163 } while (0)
164
165
166/**
167 * PCI devices supported by the current BFA
168 */
169struct bfa_pciid_s {
170 u16 device_id;
171 u16 vendor_id;
172};
173
174extern char bfa_version[];
175
176/**
177 * BFA memory resources
178 */
179enum bfa_mem_type {
180 BFA_MEM_TYPE_KVA = 1, /* Kernel Virtual Memory *(non-dma-able) */
181 BFA_MEM_TYPE_DMA = 2, /* DMA-able memory */
182 BFA_MEM_TYPE_MAX = BFA_MEM_TYPE_DMA,
183};
184
185struct bfa_mem_elem_s {
186 enum bfa_mem_type mem_type; /* see enum bfa_mem_type */
187 u32 mem_len; /* Total Length in Bytes */
188 u8 *kva; /* kernel virtual address */
189 u64 dma; /* dma address if DMA memory */
190 u8 *kva_curp; /* kva allocation cursor */
191 u64 dma_curp; /* dma allocation cursor */
192};
193
194struct bfa_meminfo_s {
195 struct bfa_mem_elem_s meminfo[BFA_MEM_TYPE_MAX];
196};
197#define bfa_meminfo_kva(_m) \
198 ((_m)->meminfo[BFA_MEM_TYPE_KVA - 1].kva_curp)
199#define bfa_meminfo_dma_virt(_m) \
200 ((_m)->meminfo[BFA_MEM_TYPE_DMA - 1].kva_curp)
201#define bfa_meminfo_dma_phys(_m) \
202 ((_m)->meminfo[BFA_MEM_TYPE_DMA - 1].dma_curp)
203
204struct bfa_iocfc_regs_s {
205 bfa_os_addr_t intr_status;
206 bfa_os_addr_t intr_mask;
207 bfa_os_addr_t cpe_q_pi[BFI_IOC_MAX_CQS];
208 bfa_os_addr_t cpe_q_ci[BFI_IOC_MAX_CQS];
209 bfa_os_addr_t cpe_q_depth[BFI_IOC_MAX_CQS];
210 bfa_os_addr_t cpe_q_ctrl[BFI_IOC_MAX_CQS];
211 bfa_os_addr_t rme_q_ci[BFI_IOC_MAX_CQS];
212 bfa_os_addr_t rme_q_pi[BFI_IOC_MAX_CQS];
213 bfa_os_addr_t rme_q_depth[BFI_IOC_MAX_CQS];
214 bfa_os_addr_t rme_q_ctrl[BFI_IOC_MAX_CQS];
215};
216
217/**
218 * MSIX vector handlers
219 */
220#define BFA_MSIX_MAX_VECTORS 22
221typedef void (*bfa_msix_handler_t)(struct bfa_s *bfa, int vec);
222struct bfa_msix_s {
223 int nvecs;
224 bfa_msix_handler_t handler[BFA_MSIX_MAX_VECTORS];
225};
226
227/**
228 * Chip specific interfaces
229 */
230struct bfa_hwif_s {
231 void (*hw_reginit)(struct bfa_s *bfa);
232 void (*hw_reqq_ack)(struct bfa_s *bfa, int reqq);
233 void (*hw_rspq_ack)(struct bfa_s *bfa, int rspq);
234 void (*hw_msix_init)(struct bfa_s *bfa, int nvecs);
235 void (*hw_msix_install)(struct bfa_s *bfa);
236 void (*hw_msix_uninstall)(struct bfa_s *bfa);
237 void (*hw_isr_mode_set)(struct bfa_s *bfa, bfa_boolean_t msix);
238 void (*hw_msix_getvecs)(struct bfa_s *bfa, u32 *vecmap,
239 u32 *nvecs, u32 *maxvec);
240 void (*hw_msix_get_rme_range) (struct bfa_s *bfa, u32 *start,
241 u32 *end);
242};
243typedef void (*bfa_cb_iocfc_t) (void *cbarg, enum bfa_status status);
244
245struct bfa_iocfc_s {
246 struct bfa_s *bfa;
247 struct bfa_iocfc_cfg_s cfg;
248 int action;
249 u32 req_cq_pi[BFI_IOC_MAX_CQS];
250 u32 rsp_cq_ci[BFI_IOC_MAX_CQS];
251 struct bfa_cb_qe_s init_hcb_qe;
252 struct bfa_cb_qe_s stop_hcb_qe;
253 struct bfa_cb_qe_s dis_hcb_qe;
254 struct bfa_cb_qe_s stats_hcb_qe;
255 bfa_boolean_t cfgdone;
256
257 struct bfa_dma_s cfg_info;
258 struct bfi_iocfc_cfg_s *cfginfo;
259 struct bfa_dma_s cfgrsp_dma;
260 struct bfi_iocfc_cfgrsp_s *cfgrsp;
261 struct bfi_iocfc_cfg_reply_s *cfg_reply;
262 struct bfa_dma_s req_cq_ba[BFI_IOC_MAX_CQS];
263 struct bfa_dma_s req_cq_shadow_ci[BFI_IOC_MAX_CQS];
264 struct bfa_dma_s rsp_cq_ba[BFI_IOC_MAX_CQS];
265 struct bfa_dma_s rsp_cq_shadow_pi[BFI_IOC_MAX_CQS];
266 struct bfa_iocfc_regs_s bfa_regs; /* BFA device registers */
267 struct bfa_hwif_s hwif;
268 bfa_cb_iocfc_t updateq_cbfn; /* bios callback function */
269 void *updateq_cbarg; /* bios callback arg */
270 u32 intr_mask;
271};
272
273#define bfa_lpuid(__bfa) \
274 bfa_ioc_portid(&(__bfa)->ioc)
275#define bfa_msix_init(__bfa, __nvecs) \
276 ((__bfa)->iocfc.hwif.hw_msix_init(__bfa, __nvecs))
277#define bfa_msix_install(__bfa) \
278 ((__bfa)->iocfc.hwif.hw_msix_install(__bfa))
279#define bfa_msix_uninstall(__bfa) \
280 ((__bfa)->iocfc.hwif.hw_msix_uninstall(__bfa))
281#define bfa_isr_mode_set(__bfa, __msix) \
282 ((__bfa)->iocfc.hwif.hw_isr_mode_set(__bfa, __msix))
283#define bfa_msix_getvecs(__bfa, __vecmap, __nvecs, __maxvec) \
284 ((__bfa)->iocfc.hwif.hw_msix_getvecs(__bfa, __vecmap, \
285 __nvecs, __maxvec))
286#define bfa_msix_get_rme_range(__bfa, __start, __end) \
287 ((__bfa)->iocfc.hwif.hw_msix_get_rme_range(__bfa, __start, __end))
288#define bfa_msix(__bfa, __vec) \
289 ((__bfa)->msix.handler[__vec](__bfa, __vec))
290
291/*
292 * FC specific IOC functions.
293 */
294void bfa_iocfc_meminfo(struct bfa_iocfc_cfg_s *cfg, u32 *km_len,
295 u32 *dm_len);
296void bfa_iocfc_attach(struct bfa_s *bfa, void *bfad,
297 struct bfa_iocfc_cfg_s *cfg,
298 struct bfa_meminfo_s *meminfo,
299 struct bfa_pcidev_s *pcidev);
300void bfa_iocfc_detach(struct bfa_s *bfa);
301void bfa_iocfc_init(struct bfa_s *bfa);
302void bfa_iocfc_start(struct bfa_s *bfa);
303void bfa_iocfc_stop(struct bfa_s *bfa);
304void bfa_iocfc_isr(void *bfa, struct bfi_mbmsg_s *msg);
305void bfa_iocfc_set_snsbase(struct bfa_s *bfa, u64 snsbase_pa);
306bfa_boolean_t bfa_iocfc_is_operational(struct bfa_s *bfa);
307void bfa_iocfc_reset_queues(struct bfa_s *bfa);
308
309void bfa_msix_all(struct bfa_s *bfa, int vec);
310void bfa_msix_reqq(struct bfa_s *bfa, int vec);
311void bfa_msix_rspq(struct bfa_s *bfa, int vec);
312void bfa_msix_lpu_err(struct bfa_s *bfa, int vec);
313
314void bfa_hwcb_reginit(struct bfa_s *bfa);
315void bfa_hwcb_reqq_ack(struct bfa_s *bfa, int rspq);
316void bfa_hwcb_rspq_ack(struct bfa_s *bfa, int rspq);
317void bfa_hwcb_msix_init(struct bfa_s *bfa, int nvecs);
318void bfa_hwcb_msix_install(struct bfa_s *bfa);
319void bfa_hwcb_msix_uninstall(struct bfa_s *bfa);
320void bfa_hwcb_isr_mode_set(struct bfa_s *bfa, bfa_boolean_t msix);
321void bfa_hwcb_msix_getvecs(struct bfa_s *bfa, u32 *vecmap, u32 *nvecs,
322 u32 *maxvec);
323void bfa_hwcb_msix_get_rme_range(struct bfa_s *bfa, u32 *start,
324 u32 *end);
325void bfa_hwct_reginit(struct bfa_s *bfa);
326void bfa_hwct_reqq_ack(struct bfa_s *bfa, int rspq);
327void bfa_hwct_rspq_ack(struct bfa_s *bfa, int rspq);
328void bfa_hwct_msix_init(struct bfa_s *bfa, int nvecs);
329void bfa_hwct_msix_install(struct bfa_s *bfa);
330void bfa_hwct_msix_uninstall(struct bfa_s *bfa);
331void bfa_hwct_isr_mode_set(struct bfa_s *bfa, bfa_boolean_t msix);
332void bfa_hwct_msix_getvecs(struct bfa_s *bfa, u32 *vecmap, u32 *nvecs,
333 u32 *maxvec);
334void bfa_hwct_msix_get_rme_range(struct bfa_s *bfa, u32 *start,
335 u32 *end);
336void bfa_com_port_attach(struct bfa_s *bfa, struct bfa_meminfo_s *mi);
337void bfa_iocfc_get_bootwwns(struct bfa_s *bfa, u8 *nwwns, wwn_t *wwns);
338wwn_t bfa_iocfc_get_pwwn(struct bfa_s *bfa);
339wwn_t bfa_iocfc_get_nwwn(struct bfa_s *bfa);
340void bfa_iocfc_get_pbc_boot_cfg(struct bfa_s *bfa,
341 struct bfa_boot_pbc_s *pbcfg);
342int bfa_iocfc_get_pbc_vports(struct bfa_s *bfa,
343 struct bfi_pbc_vport_s *pbc_vport);
344
345
346/**
347 *----------------------------------------------------------------------
348 * BFA public interfaces
349 *----------------------------------------------------------------------
350 */
351#define bfa_stats(_mod, _stats) ((_mod)->stats._stats++)
352#define bfa_ioc_get_stats(__bfa, __ioc_stats) \
353 bfa_ioc_fetch_stats(&(__bfa)->ioc, __ioc_stats)
354#define bfa_ioc_clear_stats(__bfa) \
355 bfa_ioc_clr_stats(&(__bfa)->ioc)
356#define bfa_get_nports(__bfa) \
357 bfa_ioc_get_nports(&(__bfa)->ioc)
358#define bfa_get_adapter_manufacturer(__bfa, __manufacturer) \
359 bfa_ioc_get_adapter_manufacturer(&(__bfa)->ioc, __manufacturer)
360#define bfa_get_adapter_model(__bfa, __model) \
361 bfa_ioc_get_adapter_model(&(__bfa)->ioc, __model)
362#define bfa_get_adapter_serial_num(__bfa, __serial_num) \
363 bfa_ioc_get_adapter_serial_num(&(__bfa)->ioc, __serial_num)
364#define bfa_get_adapter_fw_ver(__bfa, __fw_ver) \
365 bfa_ioc_get_adapter_fw_ver(&(__bfa)->ioc, __fw_ver)
366#define bfa_get_adapter_optrom_ver(__bfa, __optrom_ver) \
367 bfa_ioc_get_adapter_optrom_ver(&(__bfa)->ioc, __optrom_ver)
368#define bfa_get_pci_chip_rev(__bfa, __chip_rev) \
369 bfa_ioc_get_pci_chip_rev(&(__bfa)->ioc, __chip_rev)
370#define bfa_get_ioc_state(__bfa) \
371 bfa_ioc_get_state(&(__bfa)->ioc)
372#define bfa_get_type(__bfa) \
373 bfa_ioc_get_type(&(__bfa)->ioc)
374#define bfa_get_mac(__bfa) \
375 bfa_ioc_get_mac(&(__bfa)->ioc)
376#define bfa_get_mfg_mac(__bfa) \
377 bfa_ioc_get_mfg_mac(&(__bfa)->ioc)
378#define bfa_get_fw_clock_res(__bfa) \
379 ((__bfa)->iocfc.cfgrsp->fwcfg.fw_tick_res)
380
381void bfa_get_pciids(struct bfa_pciid_s **pciids, int *npciids);
382void bfa_cfg_get_default(struct bfa_iocfc_cfg_s *cfg);
383void bfa_cfg_get_min(struct bfa_iocfc_cfg_s *cfg);
384void bfa_cfg_get_meminfo(struct bfa_iocfc_cfg_s *cfg,
385 struct bfa_meminfo_s *meminfo);
386void bfa_attach(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg,
387 struct bfa_meminfo_s *meminfo,
388 struct bfa_pcidev_s *pcidev);
389void bfa_init_trc(struct bfa_s *bfa, struct bfa_trc_mod_s *trcmod);
390void bfa_init_plog(struct bfa_s *bfa, struct bfa_plog_s *plog);
391void bfa_detach(struct bfa_s *bfa);
392void bfa_init(struct bfa_s *bfa);
393void bfa_start(struct bfa_s *bfa);
394void bfa_stop(struct bfa_s *bfa);
395void bfa_attach_fcs(struct bfa_s *bfa);
396void bfa_cb_init(void *bfad, bfa_status_t status);
397void bfa_cb_updateq(void *bfad, bfa_status_t status);
398
399bfa_boolean_t bfa_intx(struct bfa_s *bfa);
400void bfa_intx_disable(struct bfa_s *bfa);
401void bfa_intx_enable(struct bfa_s *bfa);
402void bfa_isr_enable(struct bfa_s *bfa);
403void bfa_isr_disable(struct bfa_s *bfa);
404
405void bfa_comp_deq(struct bfa_s *bfa, struct list_head *comp_q);
406void bfa_comp_process(struct bfa_s *bfa, struct list_head *comp_q);
407void bfa_comp_free(struct bfa_s *bfa, struct list_head *comp_q);
408
409typedef void (*bfa_cb_ioc_t) (void *cbarg, enum bfa_status status);
410void bfa_iocfc_get_attr(struct bfa_s *bfa, struct bfa_iocfc_attr_s *attr);
411void bfa_get_attr(struct bfa_s *bfa, struct bfa_ioc_attr_s *ioc_attr);
412
413void bfa_adapter_get_attr(struct bfa_s *bfa,
414 struct bfa_adapter_attr_s *ad_attr);
415u64 bfa_adapter_get_id(struct bfa_s *bfa);
416
417bfa_status_t bfa_iocfc_israttr_set(struct bfa_s *bfa,
418 struct bfa_iocfc_intr_attr_s *attr);
419
420void bfa_iocfc_enable(struct bfa_s *bfa);
421void bfa_iocfc_disable(struct bfa_s *bfa);
422void bfa_chip_reset(struct bfa_s *bfa);
423void bfa_timer_tick(struct bfa_s *bfa);
424#define bfa_timer_start(_bfa, _timer, _timercb, _arg, _timeout) \
425 bfa_timer_begin(&(_bfa)->timer_mod, _timer, _timercb, _arg, _timeout)
426
427/*
428 * BFA debug API functions
429 */
430bfa_status_t bfa_debug_fwtrc(struct bfa_s *bfa, void *trcdata, int *trclen);
431bfa_status_t bfa_debug_fwsave(struct bfa_s *bfa, void *trcdata, int *trclen);
432bfa_status_t bfa_debug_fwcore(struct bfa_s *bfa, void *buf,
433 u32 *offset, int *buflen);
434void bfa_debug_fwsave_clear(struct bfa_s *bfa);
435bfa_status_t bfa_fw_stats_get(struct bfa_s *bfa, void *data);
436bfa_status_t bfa_fw_stats_clear(struct bfa_s *bfa);
437
438#endif /* __BFA_H__ */