i2c-eg20t: change timeout value 50msec to 1000msec
[zen-stable.git] / drivers / scsi / bfa / bfa.h
bloba796de9350541a4fcae375681bb911d1fc27ec00
1 /*
2 * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
3 * All rights reserved
4 * www.brocade.com
6 * Linux driver for Brocade Fibre Channel Host Bus Adapter.
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
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.
17 #ifndef __BFA_H__
18 #define __BFA_H__
20 #include "bfad_drv.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"
27 struct bfa_s;
29 typedef void (*bfa_isr_func_t) (struct bfa_s *bfa, struct bfi_msg_s *m);
30 typedef void (*bfa_cb_cbfn_status_t) (void *cbarg, bfa_status_t status);
33 * Interrupt message handlers
35 void bfa_isr_unhandled(struct bfa_s *bfa, struct bfi_msg_s *m);
38 * Request and response queue related defines
40 #define BFA_REQQ_NELEMS_MIN (4)
41 #define BFA_RSPQ_NELEMS_MIN (4)
43 #define bfa_reqq_pi(__bfa, __reqq) ((__bfa)->iocfc.req_cq_pi[__reqq])
44 #define bfa_reqq_ci(__bfa, __reqq) \
45 (*(u32 *)((__bfa)->iocfc.req_cq_shadow_ci[__reqq].kva))
47 #define bfa_reqq_full(__bfa, __reqq) \
48 (((bfa_reqq_pi(__bfa, __reqq) + 1) & \
49 ((__bfa)->iocfc.cfg.drvcfg.num_reqq_elems - 1)) == \
50 bfa_reqq_ci(__bfa, __reqq))
52 #define bfa_reqq_next(__bfa, __reqq) \
53 (bfa_reqq_full(__bfa, __reqq) ? NULL : \
54 ((void *)((struct bfi_msg_s *)((__bfa)->iocfc.req_cq_ba[__reqq].kva) \
55 + bfa_reqq_pi((__bfa), (__reqq)))))
57 #define bfa_reqq_produce(__bfa, __reqq, __mh) do { \
58 (__mh).mtag.h2i.qid = (__bfa)->iocfc.hw_qid[__reqq];\
59 (__bfa)->iocfc.req_cq_pi[__reqq]++; \
60 (__bfa)->iocfc.req_cq_pi[__reqq] &= \
61 ((__bfa)->iocfc.cfg.drvcfg.num_reqq_elems - 1); \
62 writel((__bfa)->iocfc.req_cq_pi[__reqq], \
63 (__bfa)->iocfc.bfa_regs.cpe_q_pi[__reqq]); \
64 mmiowb(); \
65 } while (0)
67 #define bfa_rspq_pi(__bfa, __rspq) \
68 (*(u32 *)((__bfa)->iocfc.rsp_cq_shadow_pi[__rspq].kva))
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])
74 #define CQ_INCR(__index, __size) do { \
75 (__index)++; \
76 (__index) &= ((__size) - 1); \
77 } while (0)
80 * Circular queue usage assignments
82 enum {
83 BFA_REQQ_IOC = 0, /* all low-priority IOC msgs */
84 BFA_REQQ_FCXP = 0, /* all FCXP messages */
85 BFA_REQQ_LPS = 0, /* all lport service msgs */
86 BFA_REQQ_PORT = 0, /* all port messages */
87 BFA_REQQ_FLASH = 0, /* for flash module */
88 BFA_REQQ_DIAG = 0, /* for diag module */
89 BFA_REQQ_RPORT = 0, /* all port messages */
90 BFA_REQQ_SBOOT = 0, /* all san boot messages */
91 BFA_REQQ_QOS_LO = 1, /* all low priority IO */
92 BFA_REQQ_QOS_MD = 2, /* all medium priority IO */
93 BFA_REQQ_QOS_HI = 3, /* all high priority IO */
96 static inline void
97 bfa_reqq_winit(struct bfa_reqq_wait_s *wqe, void (*qresume) (void *cbarg),
98 void *cbarg)
100 wqe->qresume = qresume;
101 wqe->cbarg = cbarg;
104 #define bfa_reqq(__bfa, __reqq) (&(__bfa)->reqq_waitq[__reqq])
107 * static inline void
108 * bfa_reqq_wait(struct bfa_s *bfa, int reqq, struct bfa_reqq_wait_s *wqe)
110 #define bfa_reqq_wait(__bfa, __reqq, __wqe) do { \
112 struct list_head *waitq = bfa_reqq(__bfa, __reqq); \
114 WARN_ON(((__reqq) >= BFI_IOC_MAX_CQS)); \
115 WARN_ON(!((__wqe)->qresume && (__wqe)->cbarg)); \
117 list_add_tail(&(__wqe)->qe, waitq); \
118 } while (0)
120 #define bfa_reqq_wcancel(__wqe) list_del(&(__wqe)->qe)
122 #define bfa_cb_queue(__bfa, __hcb_qe, __cbfn, __cbarg) do { \
123 (__hcb_qe)->cbfn = (__cbfn); \
124 (__hcb_qe)->cbarg = (__cbarg); \
125 (__hcb_qe)->pre_rmv = BFA_FALSE; \
126 list_add_tail(&(__hcb_qe)->qe, &(__bfa)->comp_q); \
127 } while (0)
129 #define bfa_cb_dequeue(__hcb_qe) list_del(&(__hcb_qe)->qe)
131 #define bfa_cb_queue_once(__bfa, __hcb_qe, __cbfn, __cbarg) do { \
132 (__hcb_qe)->cbfn = (__cbfn); \
133 (__hcb_qe)->cbarg = (__cbarg); \
134 if (!(__hcb_qe)->once) { \
135 list_add_tail(&(__hcb_qe)->qe, &(__bfa)->comp_q); \
136 (__hcb_qe)->once = BFA_TRUE; \
138 } while (0)
140 #define bfa_cb_queue_status(__bfa, __hcb_qe, __status) do { \
141 (__hcb_qe)->fw_status = (__status); \
142 list_add_tail(&(__hcb_qe)->qe, &(__bfa)->comp_q); \
143 } while (0)
145 #define bfa_cb_queue_done(__hcb_qe) do { \
146 (__hcb_qe)->once = BFA_FALSE; \
147 } while (0)
151 * PCI devices supported by the current BFA
153 struct bfa_pciid_s {
154 u16 device_id;
155 u16 vendor_id;
158 extern char bfa_version[];
160 struct bfa_iocfc_regs_s {
161 void __iomem *intr_status;
162 void __iomem *intr_mask;
163 void __iomem *cpe_q_pi[BFI_IOC_MAX_CQS];
164 void __iomem *cpe_q_ci[BFI_IOC_MAX_CQS];
165 void __iomem *cpe_q_ctrl[BFI_IOC_MAX_CQS];
166 void __iomem *rme_q_ci[BFI_IOC_MAX_CQS];
167 void __iomem *rme_q_pi[BFI_IOC_MAX_CQS];
168 void __iomem *rme_q_ctrl[BFI_IOC_MAX_CQS];
172 * MSIX vector handlers
174 #define BFA_MSIX_MAX_VECTORS 22
175 typedef void (*bfa_msix_handler_t)(struct bfa_s *bfa, int vec);
176 struct bfa_msix_s {
177 int nvecs;
178 bfa_msix_handler_t handler[BFA_MSIX_MAX_VECTORS];
182 * Chip specific interfaces
184 struct bfa_hwif_s {
185 void (*hw_reginit)(struct bfa_s *bfa);
186 void (*hw_reqq_ack)(struct bfa_s *bfa, int reqq);
187 void (*hw_rspq_ack)(struct bfa_s *bfa, int rspq, u32 ci);
188 void (*hw_msix_init)(struct bfa_s *bfa, int nvecs);
189 void (*hw_msix_ctrl_install)(struct bfa_s *bfa);
190 void (*hw_msix_queue_install)(struct bfa_s *bfa);
191 void (*hw_msix_uninstall)(struct bfa_s *bfa);
192 void (*hw_isr_mode_set)(struct bfa_s *bfa, bfa_boolean_t msix);
193 void (*hw_msix_getvecs)(struct bfa_s *bfa, u32 *vecmap,
194 u32 *nvecs, u32 *maxvec);
195 void (*hw_msix_get_rme_range) (struct bfa_s *bfa, u32 *start,
196 u32 *end);
197 int cpe_vec_q0;
198 int rme_vec_q0;
200 typedef void (*bfa_cb_iocfc_t) (void *cbarg, enum bfa_status status);
202 struct bfa_faa_cbfn_s {
203 bfa_cb_iocfc_t faa_cbfn;
204 void *faa_cbarg;
207 #define BFA_FAA_ENABLED 1
208 #define BFA_FAA_DISABLED 2
211 * FAA attributes
213 struct bfa_faa_attr_s {
214 wwn_t faa;
215 u8 faa_state;
216 u8 pwwn_source;
217 u8 rsvd[6];
220 struct bfa_faa_args_s {
221 struct bfa_faa_attr_s *faa_attr;
222 struct bfa_faa_cbfn_s faa_cb;
223 u8 faa_state;
224 bfa_boolean_t busy;
227 struct bfa_iocfc_s {
228 struct bfa_s *bfa;
229 struct bfa_iocfc_cfg_s cfg;
230 int action;
231 u32 req_cq_pi[BFI_IOC_MAX_CQS];
232 u32 rsp_cq_ci[BFI_IOC_MAX_CQS];
233 u8 hw_qid[BFI_IOC_MAX_CQS];
234 struct bfa_cb_qe_s init_hcb_qe;
235 struct bfa_cb_qe_s stop_hcb_qe;
236 struct bfa_cb_qe_s dis_hcb_qe;
237 struct bfa_cb_qe_s en_hcb_qe;
238 struct bfa_cb_qe_s stats_hcb_qe;
239 bfa_boolean_t cfgdone;
241 struct bfa_dma_s cfg_info;
242 struct bfi_iocfc_cfg_s *cfginfo;
243 struct bfa_dma_s cfgrsp_dma;
244 struct bfi_iocfc_cfgrsp_s *cfgrsp;
245 struct bfa_dma_s req_cq_ba[BFI_IOC_MAX_CQS];
246 struct bfa_dma_s req_cq_shadow_ci[BFI_IOC_MAX_CQS];
247 struct bfa_dma_s rsp_cq_ba[BFI_IOC_MAX_CQS];
248 struct bfa_dma_s rsp_cq_shadow_pi[BFI_IOC_MAX_CQS];
249 struct bfa_iocfc_regs_s bfa_regs; /* BFA device registers */
250 struct bfa_hwif_s hwif;
251 bfa_cb_iocfc_t updateq_cbfn; /* bios callback function */
252 void *updateq_cbarg; /* bios callback arg */
253 u32 intr_mask;
254 struct bfa_faa_args_s faa_args;
255 struct bfa_mem_dma_s ioc_dma;
256 struct bfa_mem_dma_s iocfc_dma;
257 struct bfa_mem_dma_s reqq_dma[BFI_IOC_MAX_CQS];
258 struct bfa_mem_dma_s rspq_dma[BFI_IOC_MAX_CQS];
259 struct bfa_mem_kva_s kva_seg;
262 #define BFA_MEM_IOC_DMA(_bfa) (&((_bfa)->iocfc.ioc_dma))
263 #define BFA_MEM_IOCFC_DMA(_bfa) (&((_bfa)->iocfc.iocfc_dma))
264 #define BFA_MEM_REQQ_DMA(_bfa, _qno) (&((_bfa)->iocfc.reqq_dma[(_qno)]))
265 #define BFA_MEM_RSPQ_DMA(_bfa, _qno) (&((_bfa)->iocfc.rspq_dma[(_qno)]))
266 #define BFA_MEM_IOCFC_KVA(_bfa) (&((_bfa)->iocfc.kva_seg))
268 #define bfa_fn_lpu(__bfa) \
269 bfi_fn_lpu(bfa_ioc_pcifn(&(__bfa)->ioc), bfa_ioc_portid(&(__bfa)->ioc))
270 #define bfa_msix_init(__bfa, __nvecs) \
271 ((__bfa)->iocfc.hwif.hw_msix_init(__bfa, __nvecs))
272 #define bfa_msix_ctrl_install(__bfa) \
273 ((__bfa)->iocfc.hwif.hw_msix_ctrl_install(__bfa))
274 #define bfa_msix_queue_install(__bfa) \
275 ((__bfa)->iocfc.hwif.hw_msix_queue_install(__bfa))
276 #define bfa_msix_uninstall(__bfa) \
277 ((__bfa)->iocfc.hwif.hw_msix_uninstall(__bfa))
278 #define bfa_isr_rspq_ack(__bfa, __queue, __ci) \
279 ((__bfa)->iocfc.hwif.hw_rspq_ack(__bfa, __queue, __ci))
280 #define bfa_isr_reqq_ack(__bfa, __queue) do { \
281 if ((__bfa)->iocfc.hwif.hw_reqq_ack) \
282 (__bfa)->iocfc.hwif.hw_reqq_ack(__bfa, __queue); \
283 } while (0)
284 #define bfa_isr_mode_set(__bfa, __msix) do { \
285 if ((__bfa)->iocfc.hwif.hw_isr_mode_set) \
286 (__bfa)->iocfc.hwif.hw_isr_mode_set(__bfa, __msix); \
287 } while (0)
288 #define bfa_msix_getvecs(__bfa, __vecmap, __nvecs, __maxvec) \
289 ((__bfa)->iocfc.hwif.hw_msix_getvecs(__bfa, __vecmap, \
290 __nvecs, __maxvec))
291 #define bfa_msix_get_rme_range(__bfa, __start, __end) \
292 ((__bfa)->iocfc.hwif.hw_msix_get_rme_range(__bfa, __start, __end))
293 #define bfa_msix(__bfa, __vec) \
294 ((__bfa)->msix.handler[__vec](__bfa, __vec))
297 * FC specific IOC functions.
299 void bfa_iocfc_meminfo(struct bfa_iocfc_cfg_s *cfg,
300 struct bfa_meminfo_s *meminfo,
301 struct bfa_s *bfa);
302 void bfa_iocfc_attach(struct bfa_s *bfa, void *bfad,
303 struct bfa_iocfc_cfg_s *cfg,
304 struct bfa_pcidev_s *pcidev);
305 void bfa_iocfc_init(struct bfa_s *bfa);
306 void bfa_iocfc_start(struct bfa_s *bfa);
307 void bfa_iocfc_stop(struct bfa_s *bfa);
308 void bfa_iocfc_isr(void *bfa, struct bfi_mbmsg_s *msg);
309 void bfa_iocfc_set_snsbase(struct bfa_s *bfa, int seg_no, u64 snsbase_pa);
310 bfa_boolean_t bfa_iocfc_is_operational(struct bfa_s *bfa);
311 void bfa_iocfc_reset_queues(struct bfa_s *bfa);
313 void bfa_msix_all(struct bfa_s *bfa, int vec);
314 void bfa_msix_reqq(struct bfa_s *bfa, int vec);
315 void bfa_msix_rspq(struct bfa_s *bfa, int vec);
316 void bfa_msix_lpu_err(struct bfa_s *bfa, int vec);
318 void bfa_hwcb_reginit(struct bfa_s *bfa);
319 void bfa_hwcb_rspq_ack(struct bfa_s *bfa, int rspq, u32 ci);
320 void bfa_hwcb_msix_init(struct bfa_s *bfa, int nvecs);
321 void bfa_hwcb_msix_ctrl_install(struct bfa_s *bfa);
322 void bfa_hwcb_msix_queue_install(struct bfa_s *bfa);
323 void bfa_hwcb_msix_uninstall(struct bfa_s *bfa);
324 void bfa_hwcb_isr_mode_set(struct bfa_s *bfa, bfa_boolean_t msix);
325 void bfa_hwcb_msix_getvecs(struct bfa_s *bfa, u32 *vecmap, u32 *nvecs,
326 u32 *maxvec);
327 void bfa_hwcb_msix_get_rme_range(struct bfa_s *bfa, u32 *start,
328 u32 *end);
329 void bfa_hwct_reginit(struct bfa_s *bfa);
330 void bfa_hwct2_reginit(struct bfa_s *bfa);
331 void bfa_hwct_reqq_ack(struct bfa_s *bfa, int rspq);
332 void bfa_hwct_rspq_ack(struct bfa_s *bfa, int rspq, u32 ci);
333 void bfa_hwct2_rspq_ack(struct bfa_s *bfa, int rspq, u32 ci);
334 void bfa_hwct_msix_init(struct bfa_s *bfa, int nvecs);
335 void bfa_hwct_msix_ctrl_install(struct bfa_s *bfa);
336 void bfa_hwct_msix_queue_install(struct bfa_s *bfa);
337 void bfa_hwct_msix_uninstall(struct bfa_s *bfa);
338 void bfa_hwct_isr_mode_set(struct bfa_s *bfa, bfa_boolean_t msix);
339 void bfa_hwct_msix_getvecs(struct bfa_s *bfa, u32 *vecmap, u32 *nvecs,
340 u32 *maxvec);
341 void bfa_hwct_msix_get_rme_range(struct bfa_s *bfa, u32 *start,
342 u32 *end);
343 void bfa_iocfc_get_bootwwns(struct bfa_s *bfa, u8 *nwwns, wwn_t *wwns);
344 wwn_t bfa_iocfc_get_pwwn(struct bfa_s *bfa);
345 wwn_t bfa_iocfc_get_nwwn(struct bfa_s *bfa);
346 int bfa_iocfc_get_pbc_vports(struct bfa_s *bfa,
347 struct bfi_pbc_vport_s *pbc_vport);
351 *----------------------------------------------------------------------
352 * BFA public interfaces
353 *----------------------------------------------------------------------
355 #define bfa_stats(_mod, _stats) ((_mod)->stats._stats++)
356 #define bfa_ioc_get_stats(__bfa, __ioc_stats) \
357 bfa_ioc_fetch_stats(&(__bfa)->ioc, __ioc_stats)
358 #define bfa_ioc_clear_stats(__bfa) \
359 bfa_ioc_clr_stats(&(__bfa)->ioc)
360 #define bfa_get_nports(__bfa) \
361 bfa_ioc_get_nports(&(__bfa)->ioc)
362 #define bfa_get_adapter_manufacturer(__bfa, __manufacturer) \
363 bfa_ioc_get_adapter_manufacturer(&(__bfa)->ioc, __manufacturer)
364 #define bfa_get_adapter_model(__bfa, __model) \
365 bfa_ioc_get_adapter_model(&(__bfa)->ioc, __model)
366 #define bfa_get_adapter_serial_num(__bfa, __serial_num) \
367 bfa_ioc_get_adapter_serial_num(&(__bfa)->ioc, __serial_num)
368 #define bfa_get_adapter_fw_ver(__bfa, __fw_ver) \
369 bfa_ioc_get_adapter_fw_ver(&(__bfa)->ioc, __fw_ver)
370 #define bfa_get_adapter_optrom_ver(__bfa, __optrom_ver) \
371 bfa_ioc_get_adapter_optrom_ver(&(__bfa)->ioc, __optrom_ver)
372 #define bfa_get_pci_chip_rev(__bfa, __chip_rev) \
373 bfa_ioc_get_pci_chip_rev(&(__bfa)->ioc, __chip_rev)
374 #define bfa_get_ioc_state(__bfa) \
375 bfa_ioc_get_state(&(__bfa)->ioc)
376 #define bfa_get_type(__bfa) \
377 bfa_ioc_get_type(&(__bfa)->ioc)
378 #define bfa_get_mac(__bfa) \
379 bfa_ioc_get_mac(&(__bfa)->ioc)
380 #define bfa_get_mfg_mac(__bfa) \
381 bfa_ioc_get_mfg_mac(&(__bfa)->ioc)
382 #define bfa_get_fw_clock_res(__bfa) \
383 ((__bfa)->iocfc.cfgrsp->fwcfg.fw_tick_res)
386 * lun mask macros return NULL when min cfg is enabled and there is
387 * no memory allocated for lunmask.
389 #define bfa_get_lun_mask(__bfa) \
390 ((&(__bfa)->modules.dconf_mod)->min_cfg) ? NULL : \
391 (&(BFA_DCONF_MOD(__bfa)->dconf->lun_mask))
393 #define bfa_get_lun_mask_list(_bfa) \
394 ((&(_bfa)->modules.dconf_mod)->min_cfg) ? NULL : \
395 (bfa_get_lun_mask(_bfa)->lun_list)
397 #define bfa_get_lun_mask_status(_bfa) \
398 (((&(_bfa)->modules.dconf_mod)->min_cfg) \
399 ? BFA_LUNMASK_MINCFG : ((bfa_get_lun_mask(_bfa))->status))
401 void bfa_get_pciids(struct bfa_pciid_s **pciids, int *npciids);
402 void bfa_cfg_get_default(struct bfa_iocfc_cfg_s *cfg);
403 void bfa_cfg_get_min(struct bfa_iocfc_cfg_s *cfg);
404 void bfa_cfg_get_meminfo(struct bfa_iocfc_cfg_s *cfg,
405 struct bfa_meminfo_s *meminfo,
406 struct bfa_s *bfa);
407 void bfa_attach(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg,
408 struct bfa_meminfo_s *meminfo,
409 struct bfa_pcidev_s *pcidev);
410 void bfa_detach(struct bfa_s *bfa);
411 void bfa_cb_init(void *bfad, bfa_status_t status);
412 void bfa_cb_updateq(void *bfad, bfa_status_t status);
414 bfa_boolean_t bfa_intx(struct bfa_s *bfa);
415 void bfa_isr_enable(struct bfa_s *bfa);
416 void bfa_isr_disable(struct bfa_s *bfa);
418 void bfa_comp_deq(struct bfa_s *bfa, struct list_head *comp_q);
419 void bfa_comp_process(struct bfa_s *bfa, struct list_head *comp_q);
420 void bfa_comp_free(struct bfa_s *bfa, struct list_head *comp_q);
422 typedef void (*bfa_cb_ioc_t) (void *cbarg, enum bfa_status status);
423 void bfa_iocfc_get_attr(struct bfa_s *bfa, struct bfa_iocfc_attr_s *attr);
426 bfa_status_t bfa_iocfc_israttr_set(struct bfa_s *bfa,
427 struct bfa_iocfc_intr_attr_s *attr);
429 void bfa_iocfc_enable(struct bfa_s *bfa);
430 void bfa_iocfc_disable(struct bfa_s *bfa);
431 void bfa_iocfc_cb_dconf_modinit(struct bfa_s *bfa, bfa_status_t status);
432 #define bfa_timer_start(_bfa, _timer, _timercb, _arg, _timeout) \
433 bfa_timer_begin(&(_bfa)->timer_mod, _timer, _timercb, _arg, _timeout)
435 struct bfa_cb_pending_q_s {
436 struct bfa_cb_qe_s hcb_qe;
437 void *data; /* Driver buffer */
440 /* Common macros to operate on pending stats/attr apis */
441 #define bfa_pending_q_init(__qe, __cbfn, __cbarg, __data) do { \
442 bfa_q_qe_init(&((__qe)->hcb_qe.qe)); \
443 (__qe)->hcb_qe.cbfn = (__cbfn); \
444 (__qe)->hcb_qe.cbarg = (__cbarg); \
445 (__qe)->hcb_qe.pre_rmv = BFA_TRUE; \
446 (__qe)->data = (__data); \
447 } while (0)
449 #endif /* __BFA_H__ */