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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 
18 #include "bfad_drv.h"
19 #include "bfa_modules.h"
20 #include "bfi_reg.h"
21 
22 BFA_TRC_FILE(HAL, CORE);
23 
24 /*
25  * BFA module list terminated by NULL
26  */
27 static struct bfa_module_s *hal_mods[] = {
28 	&hal_mod_fcdiag,
29 	&hal_mod_sgpg,
30 	&hal_mod_fcport,
31 	&hal_mod_fcxp,
32 	&hal_mod_lps,
33 	&hal_mod_uf,
34 	&hal_mod_rport,
35 	&hal_mod_fcp,
36 	&hal_mod_dconf,
37 	NULL
38 };
39 
40 /*
41  * Message handlers for various modules.
42  */
43 static bfa_isr_func_t  bfa_isrs[BFI_MC_MAX] = {
44 	bfa_isr_unhandled,	/* NONE */
45 	bfa_isr_unhandled,	/* BFI_MC_IOC */
46 	bfa_fcdiag_intr,	/* BFI_MC_DIAG */
47 	bfa_isr_unhandled,	/* BFI_MC_FLASH */
48 	bfa_isr_unhandled,	/* BFI_MC_CEE */
49 	bfa_fcport_isr,		/* BFI_MC_FCPORT */
50 	bfa_isr_unhandled,	/* BFI_MC_IOCFC */
51 	bfa_isr_unhandled,	/* BFI_MC_LL */
52 	bfa_uf_isr,		/* BFI_MC_UF */
53 	bfa_fcxp_isr,		/* BFI_MC_FCXP */
54 	bfa_lps_isr,		/* BFI_MC_LPS */
55 	bfa_rport_isr,		/* BFI_MC_RPORT */
56 	bfa_itn_isr,		/* BFI_MC_ITN */
57 	bfa_isr_unhandled,	/* BFI_MC_IOIM_READ */
58 	bfa_isr_unhandled,	/* BFI_MC_IOIM_WRITE */
59 	bfa_isr_unhandled,	/* BFI_MC_IOIM_IO */
60 	bfa_ioim_isr,		/* BFI_MC_IOIM */
61 	bfa_ioim_good_comp_isr,	/* BFI_MC_IOIM_IOCOM */
62 	bfa_tskim_isr,		/* BFI_MC_TSKIM */
63 	bfa_isr_unhandled,	/* BFI_MC_SBOOT */
64 	bfa_isr_unhandled,	/* BFI_MC_IPFC */
65 	bfa_isr_unhandled,	/* BFI_MC_PORT */
66 	bfa_isr_unhandled,	/* --------- */
67 	bfa_isr_unhandled,	/* --------- */
68 	bfa_isr_unhandled,	/* --------- */
69 	bfa_isr_unhandled,	/* --------- */
70 	bfa_isr_unhandled,	/* --------- */
71 	bfa_isr_unhandled,	/* --------- */
72 	bfa_isr_unhandled,	/* --------- */
73 	bfa_isr_unhandled,	/* --------- */
74 	bfa_isr_unhandled,	/* --------- */
75 	bfa_isr_unhandled,	/* --------- */
76 };
77 /*
78  * Message handlers for mailbox command classes
79  */
80 static bfa_ioc_mbox_mcfunc_t  bfa_mbox_isrs[BFI_MC_MAX] = {
81 	NULL,
82 	NULL,		/* BFI_MC_IOC   */
83 	NULL,		/* BFI_MC_DIAG  */
84 	NULL,		/* BFI_MC_FLASH */
85 	NULL,		/* BFI_MC_CEE   */
86 	NULL,		/* BFI_MC_PORT  */
87 	bfa_iocfc_isr,	/* BFI_MC_IOCFC */
88 	NULL,
89 };
90 
91 
92 
93 static void
bfa_com_port_attach(struct bfa_s * bfa)94 bfa_com_port_attach(struct bfa_s *bfa)
95 {
96 	struct bfa_port_s	*port = &bfa->modules.port;
97 	struct bfa_mem_dma_s	*port_dma = BFA_MEM_PORT_DMA(bfa);
98 
99 	bfa_port_attach(port, &bfa->ioc, bfa, bfa->trcmod);
100 	bfa_port_mem_claim(port, port_dma->kva_curp, port_dma->dma_curp);
101 }
102 
103 /*
104  * ablk module attach
105  */
106 static void
bfa_com_ablk_attach(struct bfa_s * bfa)107 bfa_com_ablk_attach(struct bfa_s *bfa)
108 {
109 	struct bfa_ablk_s	*ablk = &bfa->modules.ablk;
110 	struct bfa_mem_dma_s	*ablk_dma = BFA_MEM_ABLK_DMA(bfa);
111 
112 	bfa_ablk_attach(ablk, &bfa->ioc);
113 	bfa_ablk_memclaim(ablk, ablk_dma->kva_curp, ablk_dma->dma_curp);
114 }
115 
116 static void
bfa_com_cee_attach(struct bfa_s * bfa)117 bfa_com_cee_attach(struct bfa_s *bfa)
118 {
119 	struct bfa_cee_s	*cee = &bfa->modules.cee;
120 	struct bfa_mem_dma_s	*cee_dma = BFA_MEM_CEE_DMA(bfa);
121 
122 	cee->trcmod = bfa->trcmod;
123 	bfa_cee_attach(cee, &bfa->ioc, bfa);
124 	bfa_cee_mem_claim(cee, cee_dma->kva_curp, cee_dma->dma_curp);
125 }
126 
127 static void
bfa_com_sfp_attach(struct bfa_s * bfa)128 bfa_com_sfp_attach(struct bfa_s *bfa)
129 {
130 	struct bfa_sfp_s	*sfp = BFA_SFP_MOD(bfa);
131 	struct bfa_mem_dma_s	*sfp_dma = BFA_MEM_SFP_DMA(bfa);
132 
133 	bfa_sfp_attach(sfp, &bfa->ioc, bfa, bfa->trcmod);
134 	bfa_sfp_memclaim(sfp, sfp_dma->kva_curp, sfp_dma->dma_curp);
135 }
136 
137 static void
bfa_com_flash_attach(struct bfa_s * bfa,bfa_boolean_t mincfg)138 bfa_com_flash_attach(struct bfa_s *bfa, bfa_boolean_t mincfg)
139 {
140 	struct bfa_flash_s	*flash = BFA_FLASH(bfa);
141 	struct bfa_mem_dma_s	*flash_dma = BFA_MEM_FLASH_DMA(bfa);
142 
143 	bfa_flash_attach(flash, &bfa->ioc, bfa, bfa->trcmod, mincfg);
144 	bfa_flash_memclaim(flash, flash_dma->kva_curp,
145 			   flash_dma->dma_curp, mincfg);
146 }
147 
148 static void
bfa_com_diag_attach(struct bfa_s * bfa)149 bfa_com_diag_attach(struct bfa_s *bfa)
150 {
151 	struct bfa_diag_s	*diag = BFA_DIAG_MOD(bfa);
152 	struct bfa_mem_dma_s	*diag_dma = BFA_MEM_DIAG_DMA(bfa);
153 
154 	bfa_diag_attach(diag, &bfa->ioc, bfa, bfa_fcport_beacon, bfa->trcmod);
155 	bfa_diag_memclaim(diag, diag_dma->kva_curp, diag_dma->dma_curp);
156 }
157 
158 static void
bfa_com_phy_attach(struct bfa_s * bfa,bfa_boolean_t mincfg)159 bfa_com_phy_attach(struct bfa_s *bfa, bfa_boolean_t mincfg)
160 {
161 	struct bfa_phy_s	*phy = BFA_PHY(bfa);
162 	struct bfa_mem_dma_s	*phy_dma = BFA_MEM_PHY_DMA(bfa);
163 
164 	bfa_phy_attach(phy, &bfa->ioc, bfa, bfa->trcmod, mincfg);
165 	bfa_phy_memclaim(phy, phy_dma->kva_curp, phy_dma->dma_curp, mincfg);
166 }
167 
168 /*
169  * BFA IOC FC related definitions
170  */
171 
172 /*
173  * IOC local definitions
174  */
175 #define BFA_IOCFC_TOV		5000	/* msecs */
176 
177 enum {
178 	BFA_IOCFC_ACT_NONE	= 0,
179 	BFA_IOCFC_ACT_INIT	= 1,
180 	BFA_IOCFC_ACT_STOP	= 2,
181 	BFA_IOCFC_ACT_DISABLE	= 3,
182 	BFA_IOCFC_ACT_ENABLE	= 4,
183 };
184 
185 #define DEF_CFG_NUM_FABRICS		1
186 #define DEF_CFG_NUM_LPORTS		256
187 #define DEF_CFG_NUM_CQS			4
188 #define DEF_CFG_NUM_IOIM_REQS		(BFA_IOIM_MAX)
189 #define DEF_CFG_NUM_TSKIM_REQS		128
190 #define DEF_CFG_NUM_FCXP_REQS		64
191 #define DEF_CFG_NUM_UF_BUFS		64
192 #define DEF_CFG_NUM_RPORTS		1024
193 #define DEF_CFG_NUM_ITNIMS		(DEF_CFG_NUM_RPORTS)
194 #define DEF_CFG_NUM_TINS		256
195 
196 #define DEF_CFG_NUM_SGPGS		2048
197 #define DEF_CFG_NUM_REQQ_ELEMS		256
198 #define DEF_CFG_NUM_RSPQ_ELEMS		64
199 #define DEF_CFG_NUM_SBOOT_TGTS		16
200 #define DEF_CFG_NUM_SBOOT_LUNS		16
201 
202 /*
203  * IOCFC state machine definitions/declarations
204  */
205 bfa_fsm_state_decl(bfa_iocfc, stopped, struct bfa_iocfc_s, enum iocfc_event);
206 bfa_fsm_state_decl(bfa_iocfc, initing, struct bfa_iocfc_s, enum iocfc_event);
207 bfa_fsm_state_decl(bfa_iocfc, dconf_read, struct bfa_iocfc_s, enum iocfc_event);
208 bfa_fsm_state_decl(bfa_iocfc, init_cfg_wait,
209 		   struct bfa_iocfc_s, enum iocfc_event);
210 bfa_fsm_state_decl(bfa_iocfc, init_cfg_done,
211 		   struct bfa_iocfc_s, enum iocfc_event);
212 bfa_fsm_state_decl(bfa_iocfc, operational,
213 		   struct bfa_iocfc_s, enum iocfc_event);
214 bfa_fsm_state_decl(bfa_iocfc, dconf_write,
215 		   struct bfa_iocfc_s, enum iocfc_event);
216 bfa_fsm_state_decl(bfa_iocfc, stopping, struct bfa_iocfc_s, enum iocfc_event);
217 bfa_fsm_state_decl(bfa_iocfc, enabling, struct bfa_iocfc_s, enum iocfc_event);
218 bfa_fsm_state_decl(bfa_iocfc, cfg_wait, struct bfa_iocfc_s, enum iocfc_event);
219 bfa_fsm_state_decl(bfa_iocfc, disabling, struct bfa_iocfc_s, enum iocfc_event);
220 bfa_fsm_state_decl(bfa_iocfc, disabled, struct bfa_iocfc_s, enum iocfc_event);
221 bfa_fsm_state_decl(bfa_iocfc, failed, struct bfa_iocfc_s, enum iocfc_event);
222 bfa_fsm_state_decl(bfa_iocfc, init_failed,
223 		   struct bfa_iocfc_s, enum iocfc_event);
224 
225 /*
226  * forward declaration for IOC FC functions
227  */
228 static void bfa_iocfc_start_submod(struct bfa_s *bfa);
229 static void bfa_iocfc_disable_submod(struct bfa_s *bfa);
230 static void bfa_iocfc_send_cfg(void *bfa_arg);
231 static void bfa_iocfc_enable_cbfn(void *bfa_arg, enum bfa_status status);
232 static void bfa_iocfc_disable_cbfn(void *bfa_arg);
233 static void bfa_iocfc_hbfail_cbfn(void *bfa_arg);
234 static void bfa_iocfc_reset_cbfn(void *bfa_arg);
235 static struct bfa_ioc_cbfn_s bfa_iocfc_cbfn;
236 static void bfa_iocfc_init_cb(void *bfa_arg, bfa_boolean_t complete);
237 static void bfa_iocfc_stop_cb(void *bfa_arg, bfa_boolean_t compl);
238 static void bfa_iocfc_enable_cb(void *bfa_arg, bfa_boolean_t compl);
239 static void bfa_iocfc_disable_cb(void *bfa_arg, bfa_boolean_t compl);
240 
241 static void
bfa_iocfc_sm_stopped_entry(struct bfa_iocfc_s * iocfc)242 bfa_iocfc_sm_stopped_entry(struct bfa_iocfc_s *iocfc)
243 {
244 }
245 
246 static void
bfa_iocfc_sm_stopped(struct bfa_iocfc_s * iocfc,enum iocfc_event event)247 bfa_iocfc_sm_stopped(struct bfa_iocfc_s *iocfc, enum iocfc_event event)
248 {
249 	bfa_trc(iocfc->bfa, event);
250 
251 	switch (event) {
252 	case IOCFC_E_INIT:
253 	case IOCFC_E_ENABLE:
254 		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_initing);
255 		break;
256 	default:
257 		bfa_sm_fault(iocfc->bfa, event);
258 		break;
259 	}
260 }
261 
262 static void
bfa_iocfc_sm_initing_entry(struct bfa_iocfc_s * iocfc)263 bfa_iocfc_sm_initing_entry(struct bfa_iocfc_s *iocfc)
264 {
265 	bfa_ioc_enable(&iocfc->bfa->ioc);
266 }
267 
268 static void
bfa_iocfc_sm_initing(struct bfa_iocfc_s * iocfc,enum iocfc_event event)269 bfa_iocfc_sm_initing(struct bfa_iocfc_s *iocfc, enum iocfc_event event)
270 {
271 	bfa_trc(iocfc->bfa, event);
272 
273 	switch (event) {
274 	case IOCFC_E_IOC_ENABLED:
275 		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_dconf_read);
276 		break;
277 	case IOCFC_E_IOC_FAILED:
278 		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_init_failed);
279 		break;
280 	default:
281 		bfa_sm_fault(iocfc->bfa, event);
282 		break;
283 	}
284 }
285 
286 static void
bfa_iocfc_sm_dconf_read_entry(struct bfa_iocfc_s * iocfc)287 bfa_iocfc_sm_dconf_read_entry(struct bfa_iocfc_s *iocfc)
288 {
289 	bfa_dconf_modinit(iocfc->bfa);
290 }
291 
292 static void
bfa_iocfc_sm_dconf_read(struct bfa_iocfc_s * iocfc,enum iocfc_event event)293 bfa_iocfc_sm_dconf_read(struct bfa_iocfc_s *iocfc, enum iocfc_event event)
294 {
295 	bfa_trc(iocfc->bfa, event);
296 
297 	switch (event) {
298 	case IOCFC_E_DCONF_DONE:
299 		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_init_cfg_wait);
300 		break;
301 	case IOCFC_E_IOC_FAILED:
302 		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_init_failed);
303 		break;
304 	default:
305 		bfa_sm_fault(iocfc->bfa, event);
306 		break;
307 	}
308 }
309 
310 static void
bfa_iocfc_sm_init_cfg_wait_entry(struct bfa_iocfc_s * iocfc)311 bfa_iocfc_sm_init_cfg_wait_entry(struct bfa_iocfc_s *iocfc)
312 {
313 	bfa_iocfc_send_cfg(iocfc->bfa);
314 }
315 
316 static void
bfa_iocfc_sm_init_cfg_wait(struct bfa_iocfc_s * iocfc,enum iocfc_event event)317 bfa_iocfc_sm_init_cfg_wait(struct bfa_iocfc_s *iocfc, enum iocfc_event event)
318 {
319 	bfa_trc(iocfc->bfa, event);
320 
321 	switch (event) {
322 	case IOCFC_E_CFG_DONE:
323 		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_init_cfg_done);
324 		break;
325 	case IOCFC_E_IOC_FAILED:
326 		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_init_failed);
327 		break;
328 	default:
329 		bfa_sm_fault(iocfc->bfa, event);
330 		break;
331 	}
332 }
333 
334 static void
bfa_iocfc_sm_init_cfg_done_entry(struct bfa_iocfc_s * iocfc)335 bfa_iocfc_sm_init_cfg_done_entry(struct bfa_iocfc_s *iocfc)
336 {
337 	iocfc->bfa->iocfc.op_status = BFA_STATUS_OK;
338 	bfa_cb_queue(iocfc->bfa, &iocfc->bfa->iocfc.init_hcb_qe,
339 		     bfa_iocfc_init_cb, iocfc->bfa);
340 }
341 
342 static void
bfa_iocfc_sm_init_cfg_done(struct bfa_iocfc_s * iocfc,enum iocfc_event event)343 bfa_iocfc_sm_init_cfg_done(struct bfa_iocfc_s *iocfc, enum iocfc_event event)
344 {
345 	bfa_trc(iocfc->bfa, event);
346 
347 	switch (event) {
348 	case IOCFC_E_START:
349 		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_operational);
350 		break;
351 	case IOCFC_E_STOP:
352 		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_stopping);
353 		break;
354 	case IOCFC_E_DISABLE:
355 		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_disabling);
356 		break;
357 	case IOCFC_E_IOC_FAILED:
358 		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_failed);
359 		break;
360 	default:
361 		bfa_sm_fault(iocfc->bfa, event);
362 		break;
363 	}
364 }
365 
366 static void
bfa_iocfc_sm_operational_entry(struct bfa_iocfc_s * iocfc)367 bfa_iocfc_sm_operational_entry(struct bfa_iocfc_s *iocfc)
368 {
369 	bfa_fcport_init(iocfc->bfa);
370 	bfa_iocfc_start_submod(iocfc->bfa);
371 }
372 
373 static void
bfa_iocfc_sm_operational(struct bfa_iocfc_s * iocfc,enum iocfc_event event)374 bfa_iocfc_sm_operational(struct bfa_iocfc_s *iocfc, enum iocfc_event event)
375 {
376 	bfa_trc(iocfc->bfa, event);
377 
378 	switch (event) {
379 	case IOCFC_E_STOP:
380 		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_dconf_write);
381 		break;
382 	case IOCFC_E_DISABLE:
383 		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_disabling);
384 		break;
385 	case IOCFC_E_IOC_FAILED:
386 		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_failed);
387 		break;
388 	default:
389 		bfa_sm_fault(iocfc->bfa, event);
390 		break;
391 	}
392 }
393 
394 static void
bfa_iocfc_sm_dconf_write_entry(struct bfa_iocfc_s * iocfc)395 bfa_iocfc_sm_dconf_write_entry(struct bfa_iocfc_s *iocfc)
396 {
397 	bfa_dconf_modexit(iocfc->bfa);
398 }
399 
400 static void
bfa_iocfc_sm_dconf_write(struct bfa_iocfc_s * iocfc,enum iocfc_event event)401 bfa_iocfc_sm_dconf_write(struct bfa_iocfc_s *iocfc, enum iocfc_event event)
402 {
403 	bfa_trc(iocfc->bfa, event);
404 
405 	switch (event) {
406 	case IOCFC_E_DCONF_DONE:
407 	case IOCFC_E_IOC_FAILED:
408 		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_stopping);
409 		break;
410 	default:
411 		bfa_sm_fault(iocfc->bfa, event);
412 		break;
413 	}
414 }
415 
416 static void
bfa_iocfc_sm_stopping_entry(struct bfa_iocfc_s * iocfc)417 bfa_iocfc_sm_stopping_entry(struct bfa_iocfc_s *iocfc)
418 {
419 	bfa_ioc_disable(&iocfc->bfa->ioc);
420 }
421 
422 static void
bfa_iocfc_sm_stopping(struct bfa_iocfc_s * iocfc,enum iocfc_event event)423 bfa_iocfc_sm_stopping(struct bfa_iocfc_s *iocfc, enum iocfc_event event)
424 {
425 	bfa_trc(iocfc->bfa, event);
426 
427 	switch (event) {
428 	case IOCFC_E_IOC_DISABLED:
429 		bfa_isr_disable(iocfc->bfa);
430 		bfa_iocfc_disable_submod(iocfc->bfa);
431 		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_stopped);
432 		iocfc->bfa->iocfc.op_status = BFA_STATUS_OK;
433 		bfa_cb_queue(iocfc->bfa, &iocfc->bfa->iocfc.stop_hcb_qe,
434 			     bfa_iocfc_stop_cb, iocfc->bfa);
435 		break;
436 	default:
437 		bfa_sm_fault(iocfc->bfa, event);
438 		break;
439 	}
440 }
441 
442 static void
bfa_iocfc_sm_enabling_entry(struct bfa_iocfc_s * iocfc)443 bfa_iocfc_sm_enabling_entry(struct bfa_iocfc_s *iocfc)
444 {
445 	bfa_ioc_enable(&iocfc->bfa->ioc);
446 }
447 
448 static void
bfa_iocfc_sm_enabling(struct bfa_iocfc_s * iocfc,enum iocfc_event event)449 bfa_iocfc_sm_enabling(struct bfa_iocfc_s *iocfc, enum iocfc_event event)
450 {
451 	bfa_trc(iocfc->bfa, event);
452 
453 	switch (event) {
454 	case IOCFC_E_IOC_ENABLED:
455 		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_cfg_wait);
456 		break;
457 	case IOCFC_E_IOC_FAILED:
458 		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_failed);
459 
460 		if (iocfc->bfa->iocfc.cb_reqd == BFA_FALSE)
461 			break;
462 
463 		iocfc->bfa->iocfc.op_status = BFA_STATUS_FAILED;
464 		bfa_cb_queue(iocfc->bfa, &iocfc->bfa->iocfc.en_hcb_qe,
465 			     bfa_iocfc_enable_cb, iocfc->bfa);
466 		iocfc->bfa->iocfc.cb_reqd = BFA_FALSE;
467 		break;
468 	default:
469 		bfa_sm_fault(iocfc->bfa, event);
470 		break;
471 	}
472 }
473 
474 static void
bfa_iocfc_sm_cfg_wait_entry(struct bfa_iocfc_s * iocfc)475 bfa_iocfc_sm_cfg_wait_entry(struct bfa_iocfc_s *iocfc)
476 {
477 	bfa_iocfc_send_cfg(iocfc->bfa);
478 }
479 
480 static void
bfa_iocfc_sm_cfg_wait(struct bfa_iocfc_s * iocfc,enum iocfc_event event)481 bfa_iocfc_sm_cfg_wait(struct bfa_iocfc_s *iocfc, enum iocfc_event event)
482 {
483 	bfa_trc(iocfc->bfa, event);
484 
485 	switch (event) {
486 	case IOCFC_E_CFG_DONE:
487 		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_operational);
488 		if (iocfc->bfa->iocfc.cb_reqd == BFA_FALSE)
489 			break;
490 
491 		iocfc->bfa->iocfc.op_status = BFA_STATUS_OK;
492 		bfa_cb_queue(iocfc->bfa, &iocfc->bfa->iocfc.en_hcb_qe,
493 			     bfa_iocfc_enable_cb, iocfc->bfa);
494 		iocfc->bfa->iocfc.cb_reqd = BFA_FALSE;
495 		break;
496 	case IOCFC_E_IOC_FAILED:
497 		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_failed);
498 		if (iocfc->bfa->iocfc.cb_reqd == BFA_FALSE)
499 			break;
500 
501 		iocfc->bfa->iocfc.op_status = BFA_STATUS_FAILED;
502 		bfa_cb_queue(iocfc->bfa, &iocfc->bfa->iocfc.en_hcb_qe,
503 			     bfa_iocfc_enable_cb, iocfc->bfa);
504 		iocfc->bfa->iocfc.cb_reqd = BFA_FALSE;
505 		break;
506 	default:
507 		bfa_sm_fault(iocfc->bfa, event);
508 		break;
509 	}
510 }
511 
512 static void
bfa_iocfc_sm_disabling_entry(struct bfa_iocfc_s * iocfc)513 bfa_iocfc_sm_disabling_entry(struct bfa_iocfc_s *iocfc)
514 {
515 	bfa_ioc_disable(&iocfc->bfa->ioc);
516 }
517 
518 static void
bfa_iocfc_sm_disabling(struct bfa_iocfc_s * iocfc,enum iocfc_event event)519 bfa_iocfc_sm_disabling(struct bfa_iocfc_s *iocfc, enum iocfc_event event)
520 {
521 	bfa_trc(iocfc->bfa, event);
522 
523 	switch (event) {
524 	case IOCFC_E_IOC_DISABLED:
525 		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_disabled);
526 		break;
527 	default:
528 		bfa_sm_fault(iocfc->bfa, event);
529 		break;
530 	}
531 }
532 
533 static void
bfa_iocfc_sm_disabled_entry(struct bfa_iocfc_s * iocfc)534 bfa_iocfc_sm_disabled_entry(struct bfa_iocfc_s *iocfc)
535 {
536 	bfa_isr_disable(iocfc->bfa);
537 	bfa_iocfc_disable_submod(iocfc->bfa);
538 	iocfc->bfa->iocfc.op_status = BFA_STATUS_OK;
539 	bfa_cb_queue(iocfc->bfa, &iocfc->bfa->iocfc.dis_hcb_qe,
540 		     bfa_iocfc_disable_cb, iocfc->bfa);
541 }
542 
543 static void
bfa_iocfc_sm_disabled(struct bfa_iocfc_s * iocfc,enum iocfc_event event)544 bfa_iocfc_sm_disabled(struct bfa_iocfc_s *iocfc, enum iocfc_event event)
545 {
546 	bfa_trc(iocfc->bfa, event);
547 
548 	switch (event) {
549 	case IOCFC_E_STOP:
550 		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_dconf_write);
551 		break;
552 	case IOCFC_E_ENABLE:
553 		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_enabling);
554 		break;
555 	default:
556 		bfa_sm_fault(iocfc->bfa, event);
557 		break;
558 	}
559 }
560 
561 static void
bfa_iocfc_sm_failed_entry(struct bfa_iocfc_s * iocfc)562 bfa_iocfc_sm_failed_entry(struct bfa_iocfc_s *iocfc)
563 {
564 	bfa_isr_disable(iocfc->bfa);
565 	bfa_iocfc_disable_submod(iocfc->bfa);
566 }
567 
568 static void
bfa_iocfc_sm_failed(struct bfa_iocfc_s * iocfc,enum iocfc_event event)569 bfa_iocfc_sm_failed(struct bfa_iocfc_s *iocfc, enum iocfc_event event)
570 {
571 	bfa_trc(iocfc->bfa, event);
572 
573 	switch (event) {
574 	case IOCFC_E_STOP:
575 		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_dconf_write);
576 		break;
577 	case IOCFC_E_DISABLE:
578 		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_disabling);
579 		break;
580 	case IOCFC_E_IOC_ENABLED:
581 		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_cfg_wait);
582 		break;
583 	case IOCFC_E_IOC_FAILED:
584 		break;
585 	default:
586 		bfa_sm_fault(iocfc->bfa, event);
587 		break;
588 	}
589 }
590 
591 static void
bfa_iocfc_sm_init_failed_entry(struct bfa_iocfc_s * iocfc)592 bfa_iocfc_sm_init_failed_entry(struct bfa_iocfc_s *iocfc)
593 {
594 	bfa_isr_disable(iocfc->bfa);
595 	iocfc->bfa->iocfc.op_status = BFA_STATUS_FAILED;
596 	bfa_cb_queue(iocfc->bfa, &iocfc->bfa->iocfc.init_hcb_qe,
597 		     bfa_iocfc_init_cb, iocfc->bfa);
598 }
599 
600 static void
bfa_iocfc_sm_init_failed(struct bfa_iocfc_s * iocfc,enum iocfc_event event)601 bfa_iocfc_sm_init_failed(struct bfa_iocfc_s *iocfc, enum iocfc_event event)
602 {
603 	bfa_trc(iocfc->bfa, event);
604 
605 	switch (event) {
606 	case IOCFC_E_STOP:
607 		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_stopping);
608 		break;
609 	case IOCFC_E_DISABLE:
610 		bfa_ioc_disable(&iocfc->bfa->ioc);
611 		break;
612 	case IOCFC_E_IOC_ENABLED:
613 		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_dconf_read);
614 		break;
615 	case IOCFC_E_IOC_DISABLED:
616 		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_stopped);
617 		iocfc->bfa->iocfc.op_status = BFA_STATUS_OK;
618 		bfa_cb_queue(iocfc->bfa, &iocfc->bfa->iocfc.dis_hcb_qe,
619 			     bfa_iocfc_disable_cb, iocfc->bfa);
620 		break;
621 	case IOCFC_E_IOC_FAILED:
622 		break;
623 	default:
624 		bfa_sm_fault(iocfc->bfa, event);
625 		break;
626 	}
627 }
628 
629 /*
630  * BFA Interrupt handling functions
631  */
632 static void
bfa_reqq_resume(struct bfa_s * bfa,int qid)633 bfa_reqq_resume(struct bfa_s *bfa, int qid)
634 {
635 	struct list_head *waitq, *qe, *qen;
636 	struct bfa_reqq_wait_s *wqe;
637 
638 	waitq = bfa_reqq(bfa, qid);
639 	list_for_each_safe(qe, qen, waitq) {
640 		/*
641 		 * Callback only as long as there is room in request queue
642 		 */
643 		if (bfa_reqq_full(bfa, qid))
644 			break;
645 
646 		list_del(qe);
647 		wqe = (struct bfa_reqq_wait_s *) qe;
648 		wqe->qresume(wqe->cbarg);
649 	}
650 }
651 
652 bfa_boolean_t
bfa_isr_rspq(struct bfa_s * bfa,int qid)653 bfa_isr_rspq(struct bfa_s *bfa, int qid)
654 {
655 	struct bfi_msg_s *m;
656 	u32	pi, ci;
657 	struct list_head *waitq;
658 	bfa_boolean_t ret;
659 
660 	ci = bfa_rspq_ci(bfa, qid);
661 	pi = bfa_rspq_pi(bfa, qid);
662 
663 	ret = (ci != pi);
664 
665 	while (ci != pi) {
666 		m = bfa_rspq_elem(bfa, qid, ci);
667 		WARN_ON(m->mhdr.msg_class >= BFI_MC_MAX);
668 
669 		bfa_isrs[m->mhdr.msg_class] (bfa, m);
670 		CQ_INCR(ci, bfa->iocfc.cfg.drvcfg.num_rspq_elems);
671 	}
672 
673 	/*
674 	 * acknowledge RME completions and update CI
675 	 */
676 	bfa_isr_rspq_ack(bfa, qid, ci);
677 
678 	/*
679 	 * Resume any pending requests in the corresponding reqq.
680 	 */
681 	waitq = bfa_reqq(bfa, qid);
682 	if (!list_empty(waitq))
683 		bfa_reqq_resume(bfa, qid);
684 
685 	return ret;
686 }
687 
688 static inline void
bfa_isr_reqq(struct bfa_s * bfa,int qid)689 bfa_isr_reqq(struct bfa_s *bfa, int qid)
690 {
691 	struct list_head *waitq;
692 
693 	bfa_isr_reqq_ack(bfa, qid);
694 
695 	/*
696 	 * Resume any pending requests in the corresponding reqq.
697 	 */
698 	waitq = bfa_reqq(bfa, qid);
699 	if (!list_empty(waitq))
700 		bfa_reqq_resume(bfa, qid);
701 }
702 
703 void
bfa_msix_all(struct bfa_s * bfa,int vec)704 bfa_msix_all(struct bfa_s *bfa, int vec)
705 {
706 	u32	intr, qintr;
707 	int	queue;
708 
709 	intr = readl(bfa->iocfc.bfa_regs.intr_status);
710 	if (!intr)
711 		return;
712 
713 	/*
714 	 * RME completion queue interrupt
715 	 */
716 	qintr = intr & __HFN_INT_RME_MASK;
717 	if (qintr && bfa->queue_process) {
718 		for (queue = 0; queue < BFI_IOC_MAX_CQS; queue++)
719 			bfa_isr_rspq(bfa, queue);
720 	}
721 
722 	intr &= ~qintr;
723 	if (!intr)
724 		return;
725 
726 	/*
727 	 * CPE completion queue interrupt
728 	 */
729 	qintr = intr & __HFN_INT_CPE_MASK;
730 	if (qintr && bfa->queue_process) {
731 		for (queue = 0; queue < BFI_IOC_MAX_CQS; queue++)
732 			bfa_isr_reqq(bfa, queue);
733 	}
734 	intr &= ~qintr;
735 	if (!intr)
736 		return;
737 
738 	bfa_msix_lpu_err(bfa, intr);
739 }
740 
741 bfa_boolean_t
bfa_intx(struct bfa_s * bfa)742 bfa_intx(struct bfa_s *bfa)
743 {
744 	u32 intr, qintr;
745 	int queue;
746 	bfa_boolean_t rspq_comp = BFA_FALSE;
747 
748 	intr = readl(bfa->iocfc.bfa_regs.intr_status);
749 
750 	qintr = intr & (__HFN_INT_RME_MASK | __HFN_INT_CPE_MASK);
751 	if (qintr)
752 		writel(qintr, bfa->iocfc.bfa_regs.intr_status);
753 
754 	/*
755 	 * Unconditional RME completion queue interrupt
756 	 */
757 	if (bfa->queue_process) {
758 		for (queue = 0; queue < BFI_IOC_MAX_CQS; queue++)
759 			if (bfa_isr_rspq(bfa, queue))
760 				rspq_comp = BFA_TRUE;
761 	}
762 
763 	if (!intr)
764 		return (qintr | rspq_comp) ? BFA_TRUE : BFA_FALSE;
765 
766 	/*
767 	 * CPE completion queue interrupt
768 	 */
769 	qintr = intr & __HFN_INT_CPE_MASK;
770 	if (qintr && bfa->queue_process) {
771 		for (queue = 0; queue < BFI_IOC_MAX_CQS; queue++)
772 			bfa_isr_reqq(bfa, queue);
773 	}
774 	intr &= ~qintr;
775 	if (!intr)
776 		return BFA_TRUE;
777 
778 	bfa_msix_lpu_err(bfa, intr);
779 
780 	return BFA_TRUE;
781 }
782 
783 void
bfa_isr_enable(struct bfa_s * bfa)784 bfa_isr_enable(struct bfa_s *bfa)
785 {
786 	u32 umsk;
787 	int pci_func = bfa_ioc_pcifn(&bfa->ioc);
788 
789 	bfa_trc(bfa, pci_func);
790 
791 	bfa_msix_ctrl_install(bfa);
792 
793 	if (bfa_asic_id_ct2(bfa->ioc.pcidev.device_id)) {
794 		umsk = __HFN_INT_ERR_MASK_CT2;
795 		umsk |= pci_func == 0 ?
796 			__HFN_INT_FN0_MASK_CT2 : __HFN_INT_FN1_MASK_CT2;
797 	} else {
798 		umsk = __HFN_INT_ERR_MASK;
799 		umsk |= pci_func == 0 ? __HFN_INT_FN0_MASK : __HFN_INT_FN1_MASK;
800 	}
801 
802 	writel(umsk, bfa->iocfc.bfa_regs.intr_status);
803 	writel(~umsk, bfa->iocfc.bfa_regs.intr_mask);
804 	bfa->iocfc.intr_mask = ~umsk;
805 	bfa_isr_mode_set(bfa, bfa->msix.nvecs != 0);
806 }
807 
808 void
bfa_isr_disable(struct bfa_s * bfa)809 bfa_isr_disable(struct bfa_s *bfa)
810 {
811 	bfa_isr_mode_set(bfa, BFA_FALSE);
812 	writel(-1L, bfa->iocfc.bfa_regs.intr_mask);
813 	bfa_msix_uninstall(bfa);
814 }
815 
816 void
bfa_msix_reqq(struct bfa_s * bfa,int vec)817 bfa_msix_reqq(struct bfa_s *bfa, int vec)
818 {
819 	bfa_isr_reqq(bfa, vec - bfa->iocfc.hwif.cpe_vec_q0);
820 }
821 
822 void
bfa_isr_unhandled(struct bfa_s * bfa,struct bfi_msg_s * m)823 bfa_isr_unhandled(struct bfa_s *bfa, struct bfi_msg_s *m)
824 {
825 	bfa_trc(bfa, m->mhdr.msg_class);
826 	bfa_trc(bfa, m->mhdr.msg_id);
827 	bfa_trc(bfa, m->mhdr.mtag.i2htok);
828 	WARN_ON(1);
829 	bfa_trc_stop(bfa->trcmod);
830 }
831 
832 void
bfa_msix_rspq(struct bfa_s * bfa,int vec)833 bfa_msix_rspq(struct bfa_s *bfa, int vec)
834 {
835 	bfa_isr_rspq(bfa, vec - bfa->iocfc.hwif.rme_vec_q0);
836 }
837 
838 void
bfa_msix_lpu_err(struct bfa_s * bfa,int vec)839 bfa_msix_lpu_err(struct bfa_s *bfa, int vec)
840 {
841 	u32 intr, curr_value;
842 	bfa_boolean_t lpu_isr, halt_isr, pss_isr;
843 
844 	intr = readl(bfa->iocfc.bfa_regs.intr_status);
845 
846 	if (bfa_asic_id_ct2(bfa->ioc.pcidev.device_id)) {
847 		halt_isr = intr & __HFN_INT_CPQ_HALT_CT2;
848 		pss_isr  = intr & __HFN_INT_ERR_PSS_CT2;
849 		lpu_isr  = intr & (__HFN_INT_MBOX_LPU0_CT2 |
850 				   __HFN_INT_MBOX_LPU1_CT2);
851 		intr    &= __HFN_INT_ERR_MASK_CT2;
852 	} else {
853 		halt_isr = bfa_asic_id_ct(bfa->ioc.pcidev.device_id) ?
854 					  (intr & __HFN_INT_LL_HALT) : 0;
855 		pss_isr  = intr & __HFN_INT_ERR_PSS;
856 		lpu_isr  = intr & (__HFN_INT_MBOX_LPU0 | __HFN_INT_MBOX_LPU1);
857 		intr    &= __HFN_INT_ERR_MASK;
858 	}
859 
860 	if (lpu_isr)
861 		bfa_ioc_mbox_isr(&bfa->ioc);
862 
863 	if (intr) {
864 		if (halt_isr) {
865 			/*
866 			 * If LL_HALT bit is set then FW Init Halt LL Port
867 			 * Register needs to be cleared as well so Interrupt
868 			 * Status Register will be cleared.
869 			 */
870 			curr_value = readl(bfa->ioc.ioc_regs.ll_halt);
871 			curr_value &= ~__FW_INIT_HALT_P;
872 			writel(curr_value, bfa->ioc.ioc_regs.ll_halt);
873 		}
874 
875 		if (pss_isr) {
876 			/*
877 			 * ERR_PSS bit needs to be cleared as well in case
878 			 * interrups are shared so driver's interrupt handler is
879 			 * still called even though it is already masked out.
880 			 */
881 			curr_value = readl(
882 					bfa->ioc.ioc_regs.pss_err_status_reg);
883 			writel(curr_value,
884 				bfa->ioc.ioc_regs.pss_err_status_reg);
885 		}
886 
887 		writel(intr, bfa->iocfc.bfa_regs.intr_status);
888 		bfa_ioc_error_isr(&bfa->ioc);
889 	}
890 }
891 
892 /*
893  * BFA IOC FC related functions
894  */
895 
896 /*
897  *  BFA IOC private functions
898  */
899 
900 /*
901  * Use the Mailbox interface to send BFI_IOCFC_H2I_CFG_REQ
902  */
903 static void
bfa_iocfc_send_cfg(void * bfa_arg)904 bfa_iocfc_send_cfg(void *bfa_arg)
905 {
906 	struct bfa_s *bfa = bfa_arg;
907 	struct bfa_iocfc_s *iocfc = &bfa->iocfc;
908 	struct bfi_iocfc_cfg_req_s cfg_req;
909 	struct bfi_iocfc_cfg_s *cfg_info = iocfc->cfginfo;
910 	struct bfa_iocfc_cfg_s	*cfg = &iocfc->cfg;
911 	int		i;
912 
913 	WARN_ON(cfg->fwcfg.num_cqs > BFI_IOC_MAX_CQS);
914 	bfa_trc(bfa, cfg->fwcfg.num_cqs);
915 
916 	bfa_iocfc_reset_queues(bfa);
917 
918 	/*
919 	 * initialize IOC configuration info
920 	 */
921 	cfg_info->single_msix_vec = 0;
922 	if (bfa->msix.nvecs == 1)
923 		cfg_info->single_msix_vec = 1;
924 	cfg_info->endian_sig = BFI_IOC_ENDIAN_SIG;
925 	cfg_info->num_cqs = cfg->fwcfg.num_cqs;
926 	cfg_info->num_ioim_reqs = cpu_to_be16(cfg->fwcfg.num_ioim_reqs);
927 	cfg_info->num_fwtio_reqs = cpu_to_be16(cfg->fwcfg.num_fwtio_reqs);
928 
929 	bfa_dma_be_addr_set(cfg_info->cfgrsp_addr, iocfc->cfgrsp_dma.pa);
930 	/*
931 	 * dma map REQ and RSP circular queues and shadow pointers
932 	 */
933 	for (i = 0; i < cfg->fwcfg.num_cqs; i++) {
934 		bfa_dma_be_addr_set(cfg_info->req_cq_ba[i],
935 				    iocfc->req_cq_ba[i].pa);
936 		bfa_dma_be_addr_set(cfg_info->req_shadow_ci[i],
937 				    iocfc->req_cq_shadow_ci[i].pa);
938 		cfg_info->req_cq_elems[i] =
939 			cpu_to_be16(cfg->drvcfg.num_reqq_elems);
940 
941 		bfa_dma_be_addr_set(cfg_info->rsp_cq_ba[i],
942 				    iocfc->rsp_cq_ba[i].pa);
943 		bfa_dma_be_addr_set(cfg_info->rsp_shadow_pi[i],
944 				    iocfc->rsp_cq_shadow_pi[i].pa);
945 		cfg_info->rsp_cq_elems[i] =
946 			cpu_to_be16(cfg->drvcfg.num_rspq_elems);
947 	}
948 
949 	/*
950 	 * Enable interrupt coalescing if it is driver init path
951 	 * and not ioc disable/enable path.
952 	 */
953 	if (bfa_fsm_cmp_state(iocfc, bfa_iocfc_sm_init_cfg_wait))
954 		cfg_info->intr_attr.coalesce = BFA_TRUE;
955 
956 	/*
957 	 * dma map IOC configuration itself
958 	 */
959 	bfi_h2i_set(cfg_req.mh, BFI_MC_IOCFC, BFI_IOCFC_H2I_CFG_REQ,
960 		    bfa_fn_lpu(bfa));
961 	bfa_dma_be_addr_set(cfg_req.ioc_cfg_dma_addr, iocfc->cfg_info.pa);
962 
963 	bfa_ioc_mbox_send(&bfa->ioc, &cfg_req,
964 			  sizeof(struct bfi_iocfc_cfg_req_s));
965 }
966 
967 static void
bfa_iocfc_init_mem(struct bfa_s * bfa,void * bfad,struct bfa_iocfc_cfg_s * cfg,struct bfa_pcidev_s * pcidev)968 bfa_iocfc_init_mem(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg,
969 		   struct bfa_pcidev_s *pcidev)
970 {
971 	struct bfa_iocfc_s	*iocfc = &bfa->iocfc;
972 
973 	bfa->bfad = bfad;
974 	iocfc->bfa = bfa;
975 	iocfc->cfg = *cfg;
976 
977 	/*
978 	 * Initialize chip specific handlers.
979 	 */
980 	if (bfa_asic_id_ctc(bfa_ioc_devid(&bfa->ioc))) {
981 		iocfc->hwif.hw_reginit = bfa_hwct_reginit;
982 		iocfc->hwif.hw_reqq_ack = bfa_hwct_reqq_ack;
983 		iocfc->hwif.hw_rspq_ack = bfa_hwct_rspq_ack;
984 		iocfc->hwif.hw_msix_init = bfa_hwct_msix_init;
985 		iocfc->hwif.hw_msix_ctrl_install = bfa_hwct_msix_ctrl_install;
986 		iocfc->hwif.hw_msix_queue_install = bfa_hwct_msix_queue_install;
987 		iocfc->hwif.hw_msix_uninstall = bfa_hwct_msix_uninstall;
988 		iocfc->hwif.hw_isr_mode_set = bfa_hwct_isr_mode_set;
989 		iocfc->hwif.hw_msix_getvecs = bfa_hwct_msix_getvecs;
990 		iocfc->hwif.hw_msix_get_rme_range = bfa_hwct_msix_get_rme_range;
991 		iocfc->hwif.rme_vec_q0 = BFI_MSIX_RME_QMIN_CT;
992 		iocfc->hwif.cpe_vec_q0 = BFI_MSIX_CPE_QMIN_CT;
993 	} else {
994 		iocfc->hwif.hw_reginit = bfa_hwcb_reginit;
995 		iocfc->hwif.hw_reqq_ack = NULL;
996 		iocfc->hwif.hw_rspq_ack = bfa_hwcb_rspq_ack;
997 		iocfc->hwif.hw_msix_init = bfa_hwcb_msix_init;
998 		iocfc->hwif.hw_msix_ctrl_install = bfa_hwcb_msix_ctrl_install;
999 		iocfc->hwif.hw_msix_queue_install = bfa_hwcb_msix_queue_install;
1000 		iocfc->hwif.hw_msix_uninstall = bfa_hwcb_msix_uninstall;
1001 		iocfc->hwif.hw_isr_mode_set = bfa_hwcb_isr_mode_set;
1002 		iocfc->hwif.hw_msix_getvecs = bfa_hwcb_msix_getvecs;
1003 		iocfc->hwif.hw_msix_get_rme_range = bfa_hwcb_msix_get_rme_range;
1004 		iocfc->hwif.rme_vec_q0 = BFI_MSIX_RME_QMIN_CB +
1005 			bfa_ioc_pcifn(&bfa->ioc) * BFI_IOC_MAX_CQS;
1006 		iocfc->hwif.cpe_vec_q0 = BFI_MSIX_CPE_QMIN_CB +
1007 			bfa_ioc_pcifn(&bfa->ioc) * BFI_IOC_MAX_CQS;
1008 	}
1009 
1010 	if (bfa_asic_id_ct2(bfa_ioc_devid(&bfa->ioc))) {
1011 		iocfc->hwif.hw_reginit = bfa_hwct2_reginit;
1012 		iocfc->hwif.hw_isr_mode_set = NULL;
1013 		iocfc->hwif.hw_rspq_ack = bfa_hwct2_rspq_ack;
1014 	}
1015 
1016 	iocfc->hwif.hw_reginit(bfa);
1017 	bfa->msix.nvecs = 0;
1018 }
1019 
1020 static void
bfa_iocfc_mem_claim(struct bfa_s * bfa,struct bfa_iocfc_cfg_s * cfg)1021 bfa_iocfc_mem_claim(struct bfa_s *bfa, struct bfa_iocfc_cfg_s *cfg)
1022 {
1023 	u8	*dm_kva = NULL;
1024 	u64	dm_pa = 0;
1025 	int	i, per_reqq_sz, per_rspq_sz, dbgsz;
1026 	struct bfa_iocfc_s  *iocfc = &bfa->iocfc;
1027 	struct bfa_mem_dma_s *ioc_dma = BFA_MEM_IOC_DMA(bfa);
1028 	struct bfa_mem_dma_s *iocfc_dma = BFA_MEM_IOCFC_DMA(bfa);
1029 	struct bfa_mem_dma_s *reqq_dma, *rspq_dma;
1030 
1031 	/* First allocate dma memory for IOC */
1032 	bfa_ioc_mem_claim(&bfa->ioc, bfa_mem_dma_virt(ioc_dma),
1033 			bfa_mem_dma_phys(ioc_dma));
1034 
1035 	/* Claim DMA-able memory for the request/response queues */
1036 	per_reqq_sz = BFA_ROUNDUP((cfg->drvcfg.num_reqq_elems * BFI_LMSG_SZ),
1037 				BFA_DMA_ALIGN_SZ);
1038 	per_rspq_sz = BFA_ROUNDUP((cfg->drvcfg.num_rspq_elems * BFI_LMSG_SZ),
1039 				BFA_DMA_ALIGN_SZ);
1040 
1041 	for (i = 0; i < cfg->fwcfg.num_cqs; i++) {
1042 		reqq_dma = BFA_MEM_REQQ_DMA(bfa, i);
1043 		iocfc->req_cq_ba[i].kva = bfa_mem_dma_virt(reqq_dma);
1044 		iocfc->req_cq_ba[i].pa = bfa_mem_dma_phys(reqq_dma);
1045 		memset(iocfc->req_cq_ba[i].kva, 0, per_reqq_sz);
1046 
1047 		rspq_dma = BFA_MEM_RSPQ_DMA(bfa, i);
1048 		iocfc->rsp_cq_ba[i].kva = bfa_mem_dma_virt(rspq_dma);
1049 		iocfc->rsp_cq_ba[i].pa = bfa_mem_dma_phys(rspq_dma);
1050 		memset(iocfc->rsp_cq_ba[i].kva, 0, per_rspq_sz);
1051 	}
1052 
1053 	/* Claim IOCFC dma memory - for shadow CI/PI */
1054 	dm_kva = bfa_mem_dma_virt(iocfc_dma);
1055 	dm_pa  = bfa_mem_dma_phys(iocfc_dma);
1056 
1057 	for (i = 0; i < cfg->fwcfg.num_cqs; i++) {
1058 		iocfc->req_cq_shadow_ci[i].kva = dm_kva;
1059 		iocfc->req_cq_shadow_ci[i].pa = dm_pa;
1060 		dm_kva += BFA_CACHELINE_SZ;
1061 		dm_pa += BFA_CACHELINE_SZ;
1062 
1063 		iocfc->rsp_cq_shadow_pi[i].kva = dm_kva;
1064 		iocfc->rsp_cq_shadow_pi[i].pa = dm_pa;
1065 		dm_kva += BFA_CACHELINE_SZ;
1066 		dm_pa += BFA_CACHELINE_SZ;
1067 	}
1068 
1069 	/* Claim IOCFC dma memory - for the config info page */
1070 	bfa->iocfc.cfg_info.kva = dm_kva;
1071 	bfa->iocfc.cfg_info.pa = dm_pa;
1072 	bfa->iocfc.cfginfo = (struct bfi_iocfc_cfg_s *) dm_kva;
1073 	dm_kva += BFA_ROUNDUP(sizeof(struct bfi_iocfc_cfg_s), BFA_CACHELINE_SZ);
1074 	dm_pa += BFA_ROUNDUP(sizeof(struct bfi_iocfc_cfg_s), BFA_CACHELINE_SZ);
1075 
1076 	/* Claim IOCFC dma memory - for the config response */
1077 	bfa->iocfc.cfgrsp_dma.kva = dm_kva;
1078 	bfa->iocfc.cfgrsp_dma.pa = dm_pa;
1079 	bfa->iocfc.cfgrsp = (struct bfi_iocfc_cfgrsp_s *) dm_kva;
1080 	dm_kva += BFA_ROUNDUP(sizeof(struct bfi_iocfc_cfgrsp_s),
1081 			BFA_CACHELINE_SZ);
1082 	dm_pa += BFA_ROUNDUP(sizeof(struct bfi_iocfc_cfgrsp_s),
1083 			BFA_CACHELINE_SZ);
1084 
1085 	/* Claim IOCFC kva memory */
1086 	dbgsz = (bfa_auto_recover) ? BFA_DBG_FWTRC_LEN : 0;
1087 	if (dbgsz > 0) {
1088 		bfa_ioc_debug_memclaim(&bfa->ioc, bfa_mem_kva_curp(iocfc));
1089 		bfa_mem_kva_curp(iocfc) += dbgsz;
1090 	}
1091 }
1092 
1093 /*
1094  * Start BFA submodules.
1095  */
1096 static void
bfa_iocfc_start_submod(struct bfa_s * bfa)1097 bfa_iocfc_start_submod(struct bfa_s *bfa)
1098 {
1099 	int		i;
1100 
1101 	bfa->queue_process = BFA_TRUE;
1102 	for (i = 0; i < BFI_IOC_MAX_CQS; i++)
1103 		bfa_isr_rspq_ack(bfa, i, bfa_rspq_ci(bfa, i));
1104 
1105 	for (i = 0; hal_mods[i]; i++)
1106 		hal_mods[i]->start(bfa);
1107 
1108 	bfa->iocfc.submod_enabled = BFA_TRUE;
1109 }
1110 
1111 /*
1112  * Disable BFA submodules.
1113  */
1114 static void
bfa_iocfc_disable_submod(struct bfa_s * bfa)1115 bfa_iocfc_disable_submod(struct bfa_s *bfa)
1116 {
1117 	int		i;
1118 
1119 	if (bfa->iocfc.submod_enabled == BFA_FALSE)
1120 		return;
1121 
1122 	for (i = 0; hal_mods[i]; i++)
1123 		hal_mods[i]->iocdisable(bfa);
1124 
1125 	bfa->iocfc.submod_enabled = BFA_FALSE;
1126 }
1127 
1128 static void
bfa_iocfc_init_cb(void * bfa_arg,bfa_boolean_t complete)1129 bfa_iocfc_init_cb(void *bfa_arg, bfa_boolean_t complete)
1130 {
1131 	struct bfa_s	*bfa = bfa_arg;
1132 
1133 	if (complete)
1134 		bfa_cb_init(bfa->bfad, bfa->iocfc.op_status);
1135 }
1136 
1137 static void
bfa_iocfc_stop_cb(void * bfa_arg,bfa_boolean_t compl)1138 bfa_iocfc_stop_cb(void *bfa_arg, bfa_boolean_t compl)
1139 {
1140 	struct bfa_s  *bfa = bfa_arg;
1141 	struct bfad_s *bfad = bfa->bfad;
1142 
1143 	if (compl)
1144 		complete(&bfad->comp);
1145 }
1146 
1147 static void
bfa_iocfc_enable_cb(void * bfa_arg,bfa_boolean_t compl)1148 bfa_iocfc_enable_cb(void *bfa_arg, bfa_boolean_t compl)
1149 {
1150 	struct bfa_s	*bfa = bfa_arg;
1151 	struct bfad_s *bfad = bfa->bfad;
1152 
1153 	if (compl)
1154 		complete(&bfad->enable_comp);
1155 }
1156 
1157 static void
bfa_iocfc_disable_cb(void * bfa_arg,bfa_boolean_t compl)1158 bfa_iocfc_disable_cb(void *bfa_arg, bfa_boolean_t compl)
1159 {
1160 	struct bfa_s  *bfa = bfa_arg;
1161 	struct bfad_s *bfad = bfa->bfad;
1162 
1163 	if (compl)
1164 		complete(&bfad->disable_comp);
1165 }
1166 
1167 /**
1168  * configure queue registers from firmware response
1169  */
1170 static void
bfa_iocfc_qreg(struct bfa_s * bfa,struct bfi_iocfc_qreg_s * qreg)1171 bfa_iocfc_qreg(struct bfa_s *bfa, struct bfi_iocfc_qreg_s *qreg)
1172 {
1173 	int     i;
1174 	struct bfa_iocfc_regs_s *r = &bfa->iocfc.bfa_regs;
1175 	void __iomem *kva = bfa_ioc_bar0(&bfa->ioc);
1176 
1177 	for (i = 0; i < BFI_IOC_MAX_CQS; i++) {
1178 		bfa->iocfc.hw_qid[i] = qreg->hw_qid[i];
1179 		r->cpe_q_ci[i] = kva + be32_to_cpu(qreg->cpe_q_ci_off[i]);
1180 		r->cpe_q_pi[i] = kva + be32_to_cpu(qreg->cpe_q_pi_off[i]);
1181 		r->cpe_q_ctrl[i] = kva + be32_to_cpu(qreg->cpe_qctl_off[i]);
1182 		r->rme_q_ci[i] = kva + be32_to_cpu(qreg->rme_q_ci_off[i]);
1183 		r->rme_q_pi[i] = kva + be32_to_cpu(qreg->rme_q_pi_off[i]);
1184 		r->rme_q_ctrl[i] = kva + be32_to_cpu(qreg->rme_qctl_off[i]);
1185 	}
1186 }
1187 
1188 static void
bfa_iocfc_res_recfg(struct bfa_s * bfa,struct bfa_iocfc_fwcfg_s * fwcfg)1189 bfa_iocfc_res_recfg(struct bfa_s *bfa, struct bfa_iocfc_fwcfg_s *fwcfg)
1190 {
1191 	bfa_fcxp_res_recfg(bfa, fwcfg->num_fcxp_reqs);
1192 	bfa_uf_res_recfg(bfa, fwcfg->num_uf_bufs);
1193 	bfa_rport_res_recfg(bfa, fwcfg->num_rports);
1194 	bfa_fcp_res_recfg(bfa, fwcfg->num_ioim_reqs);
1195 	bfa_tskim_res_recfg(bfa, fwcfg->num_tskim_reqs);
1196 }
1197 
1198 /*
1199  * Update BFA configuration from firmware configuration.
1200  */
1201 static void
bfa_iocfc_cfgrsp(struct bfa_s * bfa)1202 bfa_iocfc_cfgrsp(struct bfa_s *bfa)
1203 {
1204 	struct bfa_iocfc_s		*iocfc	 = &bfa->iocfc;
1205 	struct bfi_iocfc_cfgrsp_s	*cfgrsp	 = iocfc->cfgrsp;
1206 	struct bfa_iocfc_fwcfg_s	*fwcfg	 = &cfgrsp->fwcfg;
1207 
1208 	fwcfg->num_cqs	      = fwcfg->num_cqs;
1209 	fwcfg->num_ioim_reqs  = be16_to_cpu(fwcfg->num_ioim_reqs);
1210 	fwcfg->num_fwtio_reqs = be16_to_cpu(fwcfg->num_fwtio_reqs);
1211 	fwcfg->num_tskim_reqs = be16_to_cpu(fwcfg->num_tskim_reqs);
1212 	fwcfg->num_fcxp_reqs  = be16_to_cpu(fwcfg->num_fcxp_reqs);
1213 	fwcfg->num_uf_bufs    = be16_to_cpu(fwcfg->num_uf_bufs);
1214 	fwcfg->num_rports     = be16_to_cpu(fwcfg->num_rports);
1215 
1216 	/*
1217 	 * configure queue register offsets as learnt from firmware
1218 	 */
1219 	bfa_iocfc_qreg(bfa, &cfgrsp->qreg);
1220 
1221 	/*
1222 	 * Re-configure resources as learnt from Firmware
1223 	 */
1224 	bfa_iocfc_res_recfg(bfa, fwcfg);
1225 
1226 	/*
1227 	 * Install MSIX queue handlers
1228 	 */
1229 	bfa_msix_queue_install(bfa);
1230 
1231 	if (bfa->iocfc.cfgrsp->pbc_cfg.pbc_pwwn != 0) {
1232 		bfa->ioc.attr->pwwn = bfa->iocfc.cfgrsp->pbc_cfg.pbc_pwwn;
1233 		bfa->ioc.attr->nwwn = bfa->iocfc.cfgrsp->pbc_cfg.pbc_nwwn;
1234 		bfa_fsm_send_event(iocfc, IOCFC_E_CFG_DONE);
1235 	}
1236 }
1237 
1238 void
bfa_iocfc_reset_queues(struct bfa_s * bfa)1239 bfa_iocfc_reset_queues(struct bfa_s *bfa)
1240 {
1241 	int		q;
1242 
1243 	for (q = 0; q < BFI_IOC_MAX_CQS; q++) {
1244 		bfa_reqq_ci(bfa, q) = 0;
1245 		bfa_reqq_pi(bfa, q) = 0;
1246 		bfa_rspq_ci(bfa, q) = 0;
1247 		bfa_rspq_pi(bfa, q) = 0;
1248 	}
1249 }
1250 
1251 /*
1252  *	Process FAA pwwn msg from fw.
1253  */
1254 static void
bfa_iocfc_process_faa_addr(struct bfa_s * bfa,struct bfi_faa_addr_msg_s * msg)1255 bfa_iocfc_process_faa_addr(struct bfa_s *bfa, struct bfi_faa_addr_msg_s *msg)
1256 {
1257 	struct bfa_iocfc_s		*iocfc   = &bfa->iocfc;
1258 	struct bfi_iocfc_cfgrsp_s	*cfgrsp  = iocfc->cfgrsp;
1259 
1260 	cfgrsp->pbc_cfg.pbc_pwwn = msg->pwwn;
1261 	cfgrsp->pbc_cfg.pbc_nwwn = msg->nwwn;
1262 
1263 	bfa->ioc.attr->pwwn = msg->pwwn;
1264 	bfa->ioc.attr->nwwn = msg->nwwn;
1265 	bfa_fsm_send_event(iocfc, IOCFC_E_CFG_DONE);
1266 }
1267 
1268 /* Fabric Assigned Address specific functions */
1269 
1270 /*
1271  *	Check whether IOC is ready before sending command down
1272  */
1273 static bfa_status_t
bfa_faa_validate_request(struct bfa_s * bfa)1274 bfa_faa_validate_request(struct bfa_s *bfa)
1275 {
1276 	enum bfa_ioc_type_e	ioc_type = bfa_get_type(bfa);
1277 	u32	card_type = bfa->ioc.attr->card_type;
1278 
1279 	if (bfa_ioc_is_operational(&bfa->ioc)) {
1280 		if ((ioc_type != BFA_IOC_TYPE_FC) || bfa_mfg_is_mezz(card_type))
1281 			return BFA_STATUS_FEATURE_NOT_SUPPORTED;
1282 	} else {
1283 		return BFA_STATUS_IOC_NON_OP;
1284 	}
1285 
1286 	return BFA_STATUS_OK;
1287 }
1288 
1289 bfa_status_t
bfa_faa_query(struct bfa_s * bfa,struct bfa_faa_attr_s * attr,bfa_cb_iocfc_t cbfn,void * cbarg)1290 bfa_faa_query(struct bfa_s *bfa, struct bfa_faa_attr_s *attr,
1291 		bfa_cb_iocfc_t cbfn, void *cbarg)
1292 {
1293 	struct bfi_faa_query_s  faa_attr_req;
1294 	struct bfa_iocfc_s      *iocfc = &bfa->iocfc;
1295 	bfa_status_t            status;
1296 
1297 	iocfc->faa_args.faa_attr = attr;
1298 	iocfc->faa_args.faa_cb.faa_cbfn = cbfn;
1299 	iocfc->faa_args.faa_cb.faa_cbarg = cbarg;
1300 
1301 	status = bfa_faa_validate_request(bfa);
1302 	if (status != BFA_STATUS_OK)
1303 		return status;
1304 
1305 	if (iocfc->faa_args.busy == BFA_TRUE)
1306 		return BFA_STATUS_DEVBUSY;
1307 
1308 	iocfc->faa_args.busy = BFA_TRUE;
1309 	memset(&faa_attr_req, 0, sizeof(struct bfi_faa_query_s));
1310 	bfi_h2i_set(faa_attr_req.mh, BFI_MC_IOCFC,
1311 		BFI_IOCFC_H2I_FAA_QUERY_REQ, bfa_fn_lpu(bfa));
1312 
1313 	bfa_ioc_mbox_send(&bfa->ioc, &faa_attr_req,
1314 		sizeof(struct bfi_faa_query_s));
1315 
1316 	return BFA_STATUS_OK;
1317 }
1318 
1319 /*
1320  *	FAA query response
1321  */
1322 static void
bfa_faa_query_reply(struct bfa_iocfc_s * iocfc,bfi_faa_query_rsp_t * rsp)1323 bfa_faa_query_reply(struct bfa_iocfc_s *iocfc,
1324 		bfi_faa_query_rsp_t *rsp)
1325 {
1326 	void	*cbarg = iocfc->faa_args.faa_cb.faa_cbarg;
1327 
1328 	if (iocfc->faa_args.faa_attr) {
1329 		iocfc->faa_args.faa_attr->faa = rsp->faa;
1330 		iocfc->faa_args.faa_attr->faa_state = rsp->faa_status;
1331 		iocfc->faa_args.faa_attr->pwwn_source = rsp->addr_source;
1332 	}
1333 
1334 	WARN_ON(!iocfc->faa_args.faa_cb.faa_cbfn);
1335 
1336 	iocfc->faa_args.faa_cb.faa_cbfn(cbarg, BFA_STATUS_OK);
1337 	iocfc->faa_args.busy = BFA_FALSE;
1338 }
1339 
1340 /*
1341  * IOC enable request is complete
1342  */
1343 static void
bfa_iocfc_enable_cbfn(void * bfa_arg,enum bfa_status status)1344 bfa_iocfc_enable_cbfn(void *bfa_arg, enum bfa_status status)
1345 {
1346 	struct bfa_s	*bfa = bfa_arg;
1347 
1348 	if (status == BFA_STATUS_OK)
1349 		bfa_fsm_send_event(&bfa->iocfc, IOCFC_E_IOC_ENABLED);
1350 	else
1351 		bfa_fsm_send_event(&bfa->iocfc, IOCFC_E_IOC_FAILED);
1352 }
1353 
1354 /*
1355  * IOC disable request is complete
1356  */
1357 static void
bfa_iocfc_disable_cbfn(void * bfa_arg)1358 bfa_iocfc_disable_cbfn(void *bfa_arg)
1359 {
1360 	struct bfa_s	*bfa = bfa_arg;
1361 
1362 	bfa_fsm_send_event(&bfa->iocfc, IOCFC_E_IOC_DISABLED);
1363 }
1364 
1365 /*
1366  * Notify sub-modules of hardware failure.
1367  */
1368 static void
bfa_iocfc_hbfail_cbfn(void * bfa_arg)1369 bfa_iocfc_hbfail_cbfn(void *bfa_arg)
1370 {
1371 	struct bfa_s	*bfa = bfa_arg;
1372 
1373 	bfa->queue_process = BFA_FALSE;
1374 	bfa_fsm_send_event(&bfa->iocfc, IOCFC_E_IOC_FAILED);
1375 }
1376 
1377 /*
1378  * Actions on chip-reset completion.
1379  */
1380 static void
bfa_iocfc_reset_cbfn(void * bfa_arg)1381 bfa_iocfc_reset_cbfn(void *bfa_arg)
1382 {
1383 	struct bfa_s	*bfa = bfa_arg;
1384 
1385 	bfa_iocfc_reset_queues(bfa);
1386 	bfa_isr_enable(bfa);
1387 }
1388 
1389 /*
1390  * Query IOC memory requirement information.
1391  */
1392 void
bfa_iocfc_meminfo(struct bfa_iocfc_cfg_s * cfg,struct bfa_meminfo_s * meminfo,struct bfa_s * bfa)1393 bfa_iocfc_meminfo(struct bfa_iocfc_cfg_s *cfg, struct bfa_meminfo_s *meminfo,
1394 		  struct bfa_s *bfa)
1395 {
1396 	int q, per_reqq_sz, per_rspq_sz;
1397 	struct bfa_mem_dma_s *ioc_dma = BFA_MEM_IOC_DMA(bfa);
1398 	struct bfa_mem_dma_s *iocfc_dma = BFA_MEM_IOCFC_DMA(bfa);
1399 	struct bfa_mem_kva_s *iocfc_kva = BFA_MEM_IOCFC_KVA(bfa);
1400 	u32	dm_len = 0;
1401 
1402 	/* dma memory setup for IOC */
1403 	bfa_mem_dma_setup(meminfo, ioc_dma,
1404 		BFA_ROUNDUP(sizeof(struct bfi_ioc_attr_s), BFA_DMA_ALIGN_SZ));
1405 
1406 	/* dma memory setup for REQ/RSP queues */
1407 	per_reqq_sz = BFA_ROUNDUP((cfg->drvcfg.num_reqq_elems * BFI_LMSG_SZ),
1408 				BFA_DMA_ALIGN_SZ);
1409 	per_rspq_sz = BFA_ROUNDUP((cfg->drvcfg.num_rspq_elems * BFI_LMSG_SZ),
1410 				BFA_DMA_ALIGN_SZ);
1411 
1412 	for (q = 0; q < cfg->fwcfg.num_cqs; q++) {
1413 		bfa_mem_dma_setup(meminfo, BFA_MEM_REQQ_DMA(bfa, q),
1414 				per_reqq_sz);
1415 		bfa_mem_dma_setup(meminfo, BFA_MEM_RSPQ_DMA(bfa, q),
1416 				per_rspq_sz);
1417 	}
1418 
1419 	/* IOCFC dma memory - calculate Shadow CI/PI size */
1420 	for (q = 0; q < cfg->fwcfg.num_cqs; q++)
1421 		dm_len += (2 * BFA_CACHELINE_SZ);
1422 
1423 	/* IOCFC dma memory - calculate config info / rsp size */
1424 	dm_len += BFA_ROUNDUP(sizeof(struct bfi_iocfc_cfg_s), BFA_CACHELINE_SZ);
1425 	dm_len += BFA_ROUNDUP(sizeof(struct bfi_iocfc_cfgrsp_s),
1426 			BFA_CACHELINE_SZ);
1427 
1428 	/* dma memory setup for IOCFC */
1429 	bfa_mem_dma_setup(meminfo, iocfc_dma, dm_len);
1430 
1431 	/* kva memory setup for IOCFC */
1432 	bfa_mem_kva_setup(meminfo, iocfc_kva,
1433 			((bfa_auto_recover) ? BFA_DBG_FWTRC_LEN : 0));
1434 }
1435 
1436 /*
1437  * Query IOC memory requirement information.
1438  */
1439 void
bfa_iocfc_attach(struct bfa_s * bfa,void * bfad,struct bfa_iocfc_cfg_s * cfg,struct bfa_pcidev_s * pcidev)1440 bfa_iocfc_attach(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg,
1441 		 struct bfa_pcidev_s *pcidev)
1442 {
1443 	int		i;
1444 	struct bfa_ioc_s *ioc = &bfa->ioc;
1445 
1446 	bfa_iocfc_cbfn.enable_cbfn = bfa_iocfc_enable_cbfn;
1447 	bfa_iocfc_cbfn.disable_cbfn = bfa_iocfc_disable_cbfn;
1448 	bfa_iocfc_cbfn.hbfail_cbfn = bfa_iocfc_hbfail_cbfn;
1449 	bfa_iocfc_cbfn.reset_cbfn = bfa_iocfc_reset_cbfn;
1450 
1451 	ioc->trcmod = bfa->trcmod;
1452 	bfa_ioc_attach(&bfa->ioc, bfa, &bfa_iocfc_cbfn, &bfa->timer_mod);
1453 
1454 	bfa_ioc_pci_init(&bfa->ioc, pcidev, BFI_PCIFN_CLASS_FC);
1455 	bfa_ioc_mbox_register(&bfa->ioc, bfa_mbox_isrs);
1456 
1457 	bfa_iocfc_init_mem(bfa, bfad, cfg, pcidev);
1458 	bfa_iocfc_mem_claim(bfa, cfg);
1459 	INIT_LIST_HEAD(&bfa->timer_mod.timer_q);
1460 
1461 	INIT_LIST_HEAD(&bfa->comp_q);
1462 	for (i = 0; i < BFI_IOC_MAX_CQS; i++)
1463 		INIT_LIST_HEAD(&bfa->reqq_waitq[i]);
1464 
1465 	bfa->iocfc.cb_reqd = BFA_FALSE;
1466 	bfa->iocfc.op_status = BFA_STATUS_OK;
1467 	bfa->iocfc.submod_enabled = BFA_FALSE;
1468 
1469 	bfa_fsm_set_state(&bfa->iocfc, bfa_iocfc_sm_stopped);
1470 }
1471 
1472 /*
1473  * Query IOC memory requirement information.
1474  */
1475 void
bfa_iocfc_init(struct bfa_s * bfa)1476 bfa_iocfc_init(struct bfa_s *bfa)
1477 {
1478 	bfa_fsm_send_event(&bfa->iocfc, IOCFC_E_INIT);
1479 }
1480 
1481 /*
1482  * IOC start called from bfa_start(). Called to start IOC operations
1483  * at driver instantiation for this instance.
1484  */
1485 void
bfa_iocfc_start(struct bfa_s * bfa)1486 bfa_iocfc_start(struct bfa_s *bfa)
1487 {
1488 	bfa_fsm_send_event(&bfa->iocfc, IOCFC_E_START);
1489 }
1490 
1491 /*
1492  * IOC stop called from bfa_stop(). Called only when driver is unloaded
1493  * for this instance.
1494  */
1495 void
bfa_iocfc_stop(struct bfa_s * bfa)1496 bfa_iocfc_stop(struct bfa_s *bfa)
1497 {
1498 	bfa->queue_process = BFA_FALSE;
1499 	bfa_fsm_send_event(&bfa->iocfc, IOCFC_E_STOP);
1500 }
1501 
1502 void
bfa_iocfc_isr(void * bfaarg,struct bfi_mbmsg_s * m)1503 bfa_iocfc_isr(void *bfaarg, struct bfi_mbmsg_s *m)
1504 {
1505 	struct bfa_s		*bfa = bfaarg;
1506 	struct bfa_iocfc_s	*iocfc = &bfa->iocfc;
1507 	union bfi_iocfc_i2h_msg_u	*msg;
1508 
1509 	msg = (union bfi_iocfc_i2h_msg_u *) m;
1510 	bfa_trc(bfa, msg->mh.msg_id);
1511 
1512 	switch (msg->mh.msg_id) {
1513 	case BFI_IOCFC_I2H_CFG_REPLY:
1514 		bfa_iocfc_cfgrsp(bfa);
1515 		break;
1516 	case BFI_IOCFC_I2H_UPDATEQ_RSP:
1517 		iocfc->updateq_cbfn(iocfc->updateq_cbarg, BFA_STATUS_OK);
1518 		break;
1519 	case BFI_IOCFC_I2H_ADDR_MSG:
1520 		bfa_iocfc_process_faa_addr(bfa,
1521 				(struct bfi_faa_addr_msg_s *)msg);
1522 		break;
1523 	case BFI_IOCFC_I2H_FAA_QUERY_RSP:
1524 		bfa_faa_query_reply(iocfc, (bfi_faa_query_rsp_t *)msg);
1525 		break;
1526 	default:
1527 		WARN_ON(1);
1528 	}
1529 }
1530 
1531 void
bfa_iocfc_get_attr(struct bfa_s * bfa,struct bfa_iocfc_attr_s * attr)1532 bfa_iocfc_get_attr(struct bfa_s *bfa, struct bfa_iocfc_attr_s *attr)
1533 {
1534 	struct bfa_iocfc_s	*iocfc = &bfa->iocfc;
1535 
1536 	attr->intr_attr.coalesce = iocfc->cfginfo->intr_attr.coalesce;
1537 
1538 	attr->intr_attr.delay = iocfc->cfginfo->intr_attr.delay ?
1539 				be16_to_cpu(iocfc->cfginfo->intr_attr.delay) :
1540 				be16_to_cpu(iocfc->cfgrsp->intr_attr.delay);
1541 
1542 	attr->intr_attr.latency = iocfc->cfginfo->intr_attr.latency ?
1543 			be16_to_cpu(iocfc->cfginfo->intr_attr.latency) :
1544 			be16_to_cpu(iocfc->cfgrsp->intr_attr.latency);
1545 
1546 	attr->config	= iocfc->cfg;
1547 }
1548 
1549 bfa_status_t
bfa_iocfc_israttr_set(struct bfa_s * bfa,struct bfa_iocfc_intr_attr_s * attr)1550 bfa_iocfc_israttr_set(struct bfa_s *bfa, struct bfa_iocfc_intr_attr_s *attr)
1551 {
1552 	struct bfa_iocfc_s		*iocfc = &bfa->iocfc;
1553 	struct bfi_iocfc_set_intr_req_s *m;
1554 
1555 	iocfc->cfginfo->intr_attr.coalesce = attr->coalesce;
1556 	iocfc->cfginfo->intr_attr.delay = cpu_to_be16(attr->delay);
1557 	iocfc->cfginfo->intr_attr.latency = cpu_to_be16(attr->latency);
1558 
1559 	if (!bfa_iocfc_is_operational(bfa))
1560 		return BFA_STATUS_OK;
1561 
1562 	m = bfa_reqq_next(bfa, BFA_REQQ_IOC);
1563 	if (!m)
1564 		return BFA_STATUS_DEVBUSY;
1565 
1566 	bfi_h2i_set(m->mh, BFI_MC_IOCFC, BFI_IOCFC_H2I_SET_INTR_REQ,
1567 		    bfa_fn_lpu(bfa));
1568 	m->coalesce = iocfc->cfginfo->intr_attr.coalesce;
1569 	m->delay    = iocfc->cfginfo->intr_attr.delay;
1570 	m->latency  = iocfc->cfginfo->intr_attr.latency;
1571 
1572 	bfa_trc(bfa, attr->delay);
1573 	bfa_trc(bfa, attr->latency);
1574 
1575 	bfa_reqq_produce(bfa, BFA_REQQ_IOC, m->mh);
1576 	return BFA_STATUS_OK;
1577 }
1578 
1579 void
bfa_iocfc_set_snsbase(struct bfa_s * bfa,int seg_no,u64 snsbase_pa)1580 bfa_iocfc_set_snsbase(struct bfa_s *bfa, int seg_no, u64 snsbase_pa)
1581 {
1582 	struct bfa_iocfc_s	*iocfc = &bfa->iocfc;
1583 
1584 	iocfc->cfginfo->sense_buf_len = (BFI_IOIM_SNSLEN - 1);
1585 	bfa_dma_be_addr_set(iocfc->cfginfo->ioim_snsbase[seg_no], snsbase_pa);
1586 }
1587 /*
1588  * Enable IOC after it is disabled.
1589  */
1590 void
bfa_iocfc_enable(struct bfa_s * bfa)1591 bfa_iocfc_enable(struct bfa_s *bfa)
1592 {
1593 	bfa_plog_str(bfa->plog, BFA_PL_MID_HAL, BFA_PL_EID_MISC, 0,
1594 		     "IOC Enable");
1595 	bfa->iocfc.cb_reqd = BFA_TRUE;
1596 	bfa_fsm_send_event(&bfa->iocfc, IOCFC_E_ENABLE);
1597 }
1598 
1599 void
bfa_iocfc_disable(struct bfa_s * bfa)1600 bfa_iocfc_disable(struct bfa_s *bfa)
1601 {
1602 	bfa_plog_str(bfa->plog, BFA_PL_MID_HAL, BFA_PL_EID_MISC, 0,
1603 		     "IOC Disable");
1604 
1605 	bfa->queue_process = BFA_FALSE;
1606 	bfa_fsm_send_event(&bfa->iocfc, IOCFC_E_DISABLE);
1607 }
1608 
1609 bfa_boolean_t
bfa_iocfc_is_operational(struct bfa_s * bfa)1610 bfa_iocfc_is_operational(struct bfa_s *bfa)
1611 {
1612 	return bfa_ioc_is_operational(&bfa->ioc) &&
1613 		bfa_fsm_cmp_state(&bfa->iocfc, bfa_iocfc_sm_operational);
1614 }
1615 
1616 /*
1617  * Return boot target port wwns -- read from boot information in flash.
1618  */
1619 void
bfa_iocfc_get_bootwwns(struct bfa_s * bfa,u8 * nwwns,wwn_t * wwns)1620 bfa_iocfc_get_bootwwns(struct bfa_s *bfa, u8 *nwwns, wwn_t *wwns)
1621 {
1622 	struct bfa_iocfc_s *iocfc = &bfa->iocfc;
1623 	struct bfi_iocfc_cfgrsp_s *cfgrsp = iocfc->cfgrsp;
1624 	int i;
1625 
1626 	if (cfgrsp->pbc_cfg.boot_enabled && cfgrsp->pbc_cfg.nbluns) {
1627 		bfa_trc(bfa, cfgrsp->pbc_cfg.nbluns);
1628 		*nwwns = cfgrsp->pbc_cfg.nbluns;
1629 		for (i = 0; i < cfgrsp->pbc_cfg.nbluns; i++)
1630 			wwns[i] = cfgrsp->pbc_cfg.blun[i].tgt_pwwn;
1631 
1632 		return;
1633 	}
1634 
1635 	*nwwns = cfgrsp->bootwwns.nwwns;
1636 	memcpy(wwns, cfgrsp->bootwwns.wwn, sizeof(cfgrsp->bootwwns.wwn));
1637 }
1638 
1639 int
bfa_iocfc_get_pbc_vports(struct bfa_s * bfa,struct bfi_pbc_vport_s * pbc_vport)1640 bfa_iocfc_get_pbc_vports(struct bfa_s *bfa, struct bfi_pbc_vport_s *pbc_vport)
1641 {
1642 	struct bfa_iocfc_s *iocfc = &bfa->iocfc;
1643 	struct bfi_iocfc_cfgrsp_s *cfgrsp = iocfc->cfgrsp;
1644 
1645 	memcpy(pbc_vport, cfgrsp->pbc_cfg.vport, sizeof(cfgrsp->pbc_cfg.vport));
1646 	return cfgrsp->pbc_cfg.nvports;
1647 }
1648 
1649 
1650 /*
1651  * Use this function query the memory requirement of the BFA library.
1652  * This function needs to be called before bfa_attach() to get the
1653  * memory required of the BFA layer for a given driver configuration.
1654  *
1655  * This call will fail, if the cap is out of range compared to pre-defined
1656  * values within the BFA library
1657  *
1658  * @param[in] cfg -	pointer to bfa_ioc_cfg_t. Driver layer should indicate
1659  *			its configuration in this structure.
1660  *			The default values for struct bfa_iocfc_cfg_s can be
1661  *			fetched using bfa_cfg_get_default() API.
1662  *
1663  *			If cap's boundary check fails, the library will use
1664  *			the default bfa_cap_t values (and log a warning msg).
1665  *
1666  * @param[out] meminfo - pointer to bfa_meminfo_t. This content
1667  *			indicates the memory type (see bfa_mem_type_t) and
1668  *			amount of memory required.
1669  *
1670  *			Driver should allocate the memory, populate the
1671  *			starting address for each block and provide the same
1672  *			structure as input parameter to bfa_attach() call.
1673  *
1674  * @param[in] bfa -	pointer to the bfa structure, used while fetching the
1675  *			dma, kva memory information of the bfa sub-modules.
1676  *
1677  * @return void
1678  *
1679  * Special Considerations: @note
1680  */
1681 void
bfa_cfg_get_meminfo(struct bfa_iocfc_cfg_s * cfg,struct bfa_meminfo_s * meminfo,struct bfa_s * bfa)1682 bfa_cfg_get_meminfo(struct bfa_iocfc_cfg_s *cfg, struct bfa_meminfo_s *meminfo,
1683 		struct bfa_s *bfa)
1684 {
1685 	int		i;
1686 	struct bfa_mem_dma_s *port_dma = BFA_MEM_PORT_DMA(bfa);
1687 	struct bfa_mem_dma_s *ablk_dma = BFA_MEM_ABLK_DMA(bfa);
1688 	struct bfa_mem_dma_s *cee_dma = BFA_MEM_CEE_DMA(bfa);
1689 	struct bfa_mem_dma_s *sfp_dma = BFA_MEM_SFP_DMA(bfa);
1690 	struct bfa_mem_dma_s *flash_dma = BFA_MEM_FLASH_DMA(bfa);
1691 	struct bfa_mem_dma_s *diag_dma = BFA_MEM_DIAG_DMA(bfa);
1692 	struct bfa_mem_dma_s *phy_dma = BFA_MEM_PHY_DMA(bfa);
1693 
1694 	WARN_ON((cfg == NULL) || (meminfo == NULL));
1695 
1696 	memset((void *)meminfo, 0, sizeof(struct bfa_meminfo_s));
1697 
1698 	/* Initialize the DMA & KVA meminfo queues */
1699 	INIT_LIST_HEAD(&meminfo->dma_info.qe);
1700 	INIT_LIST_HEAD(&meminfo->kva_info.qe);
1701 
1702 	bfa_iocfc_meminfo(cfg, meminfo, bfa);
1703 
1704 	for (i = 0; hal_mods[i]; i++)
1705 		hal_mods[i]->meminfo(cfg, meminfo, bfa);
1706 
1707 	/* dma info setup */
1708 	bfa_mem_dma_setup(meminfo, port_dma, bfa_port_meminfo());
1709 	bfa_mem_dma_setup(meminfo, ablk_dma, bfa_ablk_meminfo());
1710 	bfa_mem_dma_setup(meminfo, cee_dma, bfa_cee_meminfo());
1711 	bfa_mem_dma_setup(meminfo, sfp_dma, bfa_sfp_meminfo());
1712 	bfa_mem_dma_setup(meminfo, flash_dma,
1713 			  bfa_flash_meminfo(cfg->drvcfg.min_cfg));
1714 	bfa_mem_dma_setup(meminfo, diag_dma, bfa_diag_meminfo());
1715 	bfa_mem_dma_setup(meminfo, phy_dma,
1716 			  bfa_phy_meminfo(cfg->drvcfg.min_cfg));
1717 }
1718 
1719 /*
1720  * Use this function to do attach the driver instance with the BFA
1721  * library. This function will not trigger any HW initialization
1722  * process (which will be done in bfa_init() call)
1723  *
1724  * This call will fail, if the cap is out of range compared to
1725  * pre-defined values within the BFA library
1726  *
1727  * @param[out]	bfa	Pointer to bfa_t.
1728  * @param[in]	bfad	Opaque handle back to the driver's IOC structure
1729  * @param[in]	cfg	Pointer to bfa_ioc_cfg_t. Should be same structure
1730  *			that was used in bfa_cfg_get_meminfo().
1731  * @param[in]	meminfo	Pointer to bfa_meminfo_t. The driver should
1732  *			use the bfa_cfg_get_meminfo() call to
1733  *			find the memory blocks required, allocate the
1734  *			required memory and provide the starting addresses.
1735  * @param[in]	pcidev	pointer to struct bfa_pcidev_s
1736  *
1737  * @return
1738  * void
1739  *
1740  * Special Considerations:
1741  *
1742  * @note
1743  *
1744  */
1745 void
bfa_attach(struct bfa_s * bfa,void * bfad,struct bfa_iocfc_cfg_s * cfg,struct bfa_meminfo_s * meminfo,struct bfa_pcidev_s * pcidev)1746 bfa_attach(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg,
1747 	       struct bfa_meminfo_s *meminfo, struct bfa_pcidev_s *pcidev)
1748 {
1749 	int	i;
1750 	struct bfa_mem_dma_s *dma_info, *dma_elem;
1751 	struct bfa_mem_kva_s *kva_info, *kva_elem;
1752 	struct list_head *dm_qe, *km_qe;
1753 
1754 	bfa->fcs = BFA_FALSE;
1755 
1756 	WARN_ON((cfg == NULL) || (meminfo == NULL));
1757 
1758 	/* Initialize memory pointers for iterative allocation */
1759 	dma_info = &meminfo->dma_info;
1760 	dma_info->kva_curp = dma_info->kva;
1761 	dma_info->dma_curp = dma_info->dma;
1762 
1763 	kva_info = &meminfo->kva_info;
1764 	kva_info->kva_curp = kva_info->kva;
1765 
1766 	list_for_each(dm_qe, &dma_info->qe) {
1767 		dma_elem = (struct bfa_mem_dma_s *) dm_qe;
1768 		dma_elem->kva_curp = dma_elem->kva;
1769 		dma_elem->dma_curp = dma_elem->dma;
1770 	}
1771 
1772 	list_for_each(km_qe, &kva_info->qe) {
1773 		kva_elem = (struct bfa_mem_kva_s *) km_qe;
1774 		kva_elem->kva_curp = kva_elem->kva;
1775 	}
1776 
1777 	bfa_iocfc_attach(bfa, bfad, cfg, pcidev);
1778 
1779 	for (i = 0; hal_mods[i]; i++)
1780 		hal_mods[i]->attach(bfa, bfad, cfg, pcidev);
1781 
1782 	bfa_com_port_attach(bfa);
1783 	bfa_com_ablk_attach(bfa);
1784 	bfa_com_cee_attach(bfa);
1785 	bfa_com_sfp_attach(bfa);
1786 	bfa_com_flash_attach(bfa, cfg->drvcfg.min_cfg);
1787 	bfa_com_diag_attach(bfa);
1788 	bfa_com_phy_attach(bfa, cfg->drvcfg.min_cfg);
1789 }
1790 
1791 /*
1792  * Use this function to delete a BFA IOC. IOC should be stopped (by
1793  * calling bfa_stop()) before this function call.
1794  *
1795  * @param[in] bfa - pointer to bfa_t.
1796  *
1797  * @return
1798  * void
1799  *
1800  * Special Considerations:
1801  *
1802  * @note
1803  */
1804 void
bfa_detach(struct bfa_s * bfa)1805 bfa_detach(struct bfa_s *bfa)
1806 {
1807 	int	i;
1808 
1809 	for (i = 0; hal_mods[i]; i++)
1810 		hal_mods[i]->detach(bfa);
1811 	bfa_ioc_detach(&bfa->ioc);
1812 }
1813 
1814 void
bfa_comp_deq(struct bfa_s * bfa,struct list_head * comp_q)1815 bfa_comp_deq(struct bfa_s *bfa, struct list_head *comp_q)
1816 {
1817 	INIT_LIST_HEAD(comp_q);
1818 	list_splice_tail_init(&bfa->comp_q, comp_q);
1819 }
1820 
1821 void
bfa_comp_process(struct bfa_s * bfa,struct list_head * comp_q)1822 bfa_comp_process(struct bfa_s *bfa, struct list_head *comp_q)
1823 {
1824 	struct list_head		*qe;
1825 	struct list_head		*qen;
1826 	struct bfa_cb_qe_s	*hcb_qe;
1827 	bfa_cb_cbfn_status_t	cbfn;
1828 
1829 	list_for_each_safe(qe, qen, comp_q) {
1830 		hcb_qe = (struct bfa_cb_qe_s *) qe;
1831 		if (hcb_qe->pre_rmv) {
1832 			/* qe is invalid after return, dequeue before cbfn() */
1833 			list_del(qe);
1834 			cbfn = (bfa_cb_cbfn_status_t)(hcb_qe->cbfn);
1835 			cbfn(hcb_qe->cbarg, hcb_qe->fw_status);
1836 		} else
1837 			hcb_qe->cbfn(hcb_qe->cbarg, BFA_TRUE);
1838 	}
1839 }
1840 
1841 void
bfa_comp_free(struct bfa_s * bfa,struct list_head * comp_q)1842 bfa_comp_free(struct bfa_s *bfa, struct list_head *comp_q)
1843 {
1844 	struct list_head		*qe;
1845 	struct bfa_cb_qe_s	*hcb_qe;
1846 
1847 	while (!list_empty(comp_q)) {
1848 		bfa_q_deq(comp_q, &qe);
1849 		hcb_qe = (struct bfa_cb_qe_s *) qe;
1850 		WARN_ON(hcb_qe->pre_rmv);
1851 		hcb_qe->cbfn(hcb_qe->cbarg, BFA_FALSE);
1852 	}
1853 }
1854 
1855 /*
1856  * Return the list of PCI vendor/device id lists supported by this
1857  * BFA instance.
1858  */
1859 void
bfa_get_pciids(struct bfa_pciid_s ** pciids,int * npciids)1860 bfa_get_pciids(struct bfa_pciid_s **pciids, int *npciids)
1861 {
1862 	static struct bfa_pciid_s __pciids[] = {
1863 		{BFA_PCI_VENDOR_ID_BROCADE, BFA_PCI_DEVICE_ID_FC_8G2P},
1864 		{BFA_PCI_VENDOR_ID_BROCADE, BFA_PCI_DEVICE_ID_FC_8G1P},
1865 		{BFA_PCI_VENDOR_ID_BROCADE, BFA_PCI_DEVICE_ID_CT},
1866 		{BFA_PCI_VENDOR_ID_BROCADE, BFA_PCI_DEVICE_ID_CT_FC},
1867 	};
1868 
1869 	*npciids = sizeof(__pciids) / sizeof(__pciids[0]);
1870 	*pciids = __pciids;
1871 }
1872 
1873 /*
1874  * Use this function query the default struct bfa_iocfc_cfg_s value (compiled
1875  * into BFA layer). The OS driver can then turn back and overwrite entries that
1876  * have been configured by the user.
1877  *
1878  * @param[in] cfg - pointer to bfa_ioc_cfg_t
1879  *
1880  * @return
1881  *	void
1882  *
1883  * Special Considerations:
1884  * note
1885  */
1886 void
bfa_cfg_get_default(struct bfa_iocfc_cfg_s * cfg)1887 bfa_cfg_get_default(struct bfa_iocfc_cfg_s *cfg)
1888 {
1889 	cfg->fwcfg.num_fabrics = DEF_CFG_NUM_FABRICS;
1890 	cfg->fwcfg.num_lports = DEF_CFG_NUM_LPORTS;
1891 	cfg->fwcfg.num_rports = DEF_CFG_NUM_RPORTS;
1892 	cfg->fwcfg.num_ioim_reqs = DEF_CFG_NUM_IOIM_REQS;
1893 	cfg->fwcfg.num_tskim_reqs = DEF_CFG_NUM_TSKIM_REQS;
1894 	cfg->fwcfg.num_fcxp_reqs = DEF_CFG_NUM_FCXP_REQS;
1895 	cfg->fwcfg.num_uf_bufs = DEF_CFG_NUM_UF_BUFS;
1896 	cfg->fwcfg.num_cqs = DEF_CFG_NUM_CQS;
1897 	cfg->fwcfg.num_fwtio_reqs = 0;
1898 
1899 	cfg->drvcfg.num_reqq_elems = DEF_CFG_NUM_REQQ_ELEMS;
1900 	cfg->drvcfg.num_rspq_elems = DEF_CFG_NUM_RSPQ_ELEMS;
1901 	cfg->drvcfg.num_sgpgs = DEF_CFG_NUM_SGPGS;
1902 	cfg->drvcfg.num_sboot_tgts = DEF_CFG_NUM_SBOOT_TGTS;
1903 	cfg->drvcfg.num_sboot_luns = DEF_CFG_NUM_SBOOT_LUNS;
1904 	cfg->drvcfg.path_tov = BFA_FCPIM_PATHTOV_DEF;
1905 	cfg->drvcfg.ioc_recover = BFA_FALSE;
1906 	cfg->drvcfg.delay_comp = BFA_FALSE;
1907 
1908 }
1909 
1910 void
bfa_cfg_get_min(struct bfa_iocfc_cfg_s * cfg)1911 bfa_cfg_get_min(struct bfa_iocfc_cfg_s *cfg)
1912 {
1913 	bfa_cfg_get_default(cfg);
1914 	cfg->fwcfg.num_ioim_reqs   = BFA_IOIM_MIN;
1915 	cfg->fwcfg.num_tskim_reqs  = BFA_TSKIM_MIN;
1916 	cfg->fwcfg.num_fcxp_reqs   = BFA_FCXP_MIN;
1917 	cfg->fwcfg.num_uf_bufs     = BFA_UF_MIN;
1918 	cfg->fwcfg.num_rports      = BFA_RPORT_MIN;
1919 	cfg->fwcfg.num_fwtio_reqs = 0;
1920 
1921 	cfg->drvcfg.num_sgpgs      = BFA_SGPG_MIN;
1922 	cfg->drvcfg.num_reqq_elems = BFA_REQQ_NELEMS_MIN;
1923 	cfg->drvcfg.num_rspq_elems = BFA_RSPQ_NELEMS_MIN;
1924 	cfg->drvcfg.min_cfg	   = BFA_TRUE;
1925 }
1926