aboutsummaryrefslogtreecommitdiff
path: root/drivers/scsi/bfa/bfa_core.c
blob: 3a7b3f88932f81a99ba7bd3d9b19322d918ae66b (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
/*
 * Copyright (c) 2005-2009 Brocade Communications Systems, Inc.
 * All rights reserved
 * www.brocade.com
 *
 * Linux driver for Brocade Fibre Channel Host Bus Adapter.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License (GPL) Version 2 as
 * published by the Free Software Foundation
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 */

#include <bfa.h>
#include <defs/bfa_defs_pci.h>
#include <cs/bfa_debug.h>
#include <bfa_iocfc.h>

#define DEF_CFG_NUM_FABRICS         1
#define DEF_CFG_NUM_LPORTS          256
#define DEF_CFG_NUM_CQS             4
#define DEF_CFG_NUM_IOIM_REQS       (BFA_IOIM_MAX)
#define DEF_CFG_NUM_TSKIM_REQS      128
#define DEF_CFG_NUM_FCXP_REQS       64
#define DEF_CFG_NUM_UF_BUFS         64
#define DEF_CFG_NUM_RPORTS          1024
#define DEF_CFG_NUM_ITNIMS          (DEF_CFG_NUM_RPORTS)
#define DEF_CFG_NUM_TINS            256

#define DEF_CFG_NUM_SGPGS           2048
#define DEF_CFG_NUM_REQQ_ELEMS      256
#define DEF_CFG_NUM_RSPQ_ELEMS      64
#define DEF_CFG_NUM_SBOOT_TGTS      16
#define DEF_CFG_NUM_SBOOT_LUNS      16

/**
 * Use this function query the memory requirement of the BFA library.
 * This function needs to be called before bfa_attach() to get the
 * memory required of the BFA layer for a given driver configuration.
 *
 * This call will fail, if the cap is out of range compared to pre-defined
 * values within the BFA library
 *
 * @param[in] cfg - 	pointer to bfa_ioc_cfg_t. Driver layer should indicate
 * 			its configuration in this structure.
 *			The default values for struct bfa_iocfc_cfg_s can be
 *			fetched using bfa_cfg_get_default() API.
 *
 * 			If cap's boundary check fails, the library will use
 *			the default bfa_cap_t values (and log a warning msg).
 *
 * @param[out] meminfo - pointer to bfa_meminfo_t. This content
 * 			indicates the memory type (see bfa_mem_type_t) and
 *			amount of memory required.
 *
 *			Driver should allocate the memory, populate the
 *			starting address for each block and provide the same
 *			structure as input parameter to bfa_attach() call.
 *
 * @return void
 *
 * Special Considerations: @note
 */
void
bfa_cfg_get_meminfo(struct bfa_iocfc_cfg_s *cfg, struct bfa_meminfo_s *meminfo)
{
	int             i;
	u32        km_len = 0, dm_len = 0;

	bfa_assert((cfg != NULL) && (meminfo != NULL));

	bfa_os_memset((void *)meminfo, 0, sizeof(struct bfa_meminfo_s));
	meminfo->meminfo[BFA_MEM_TYPE_KVA - 1].mem_type =
		BFA_MEM_TYPE_KVA;
	meminfo->meminfo[BFA_MEM_TYPE_DMA - 1].mem_type =
		BFA_MEM_TYPE_DMA;

	bfa_iocfc_meminfo(cfg, &km_len, &dm_len);

	for (i = 0; hal_mods[i]; i++)
		hal_mods[i]->meminfo(cfg, &km_len, &dm_len);

	dm_len += bfa_port_meminfo();

	meminfo->meminfo[BFA_MEM_TYPE_KVA - 1].mem_len = km_len;
	meminfo->meminfo[BFA_MEM_TYPE_DMA - 1].mem_len = dm_len;
}

static void
bfa_com_port_attach(struct bfa_s *bfa, struct bfa_meminfo_s *mi)
{
	struct bfa_port_s       *port = &bfa->modules.port;
	uint32_t                dm_len;
	uint8_t                 *dm_kva;
	uint64_t                dm_pa;

	dm_len = bfa_port_meminfo();
	dm_kva = bfa_meminfo_dma_virt(mi);
	dm_pa  = bfa_meminfo_dma_phys(mi);

	memset(port, 0, sizeof(struct bfa_port_s));
	bfa_port_attach(port, &bfa->ioc, bfa, bfa->trcmod, bfa->logm);
	bfa_port_mem_claim(port, dm_kva, dm_pa);

	bfa_meminfo_dma_virt(mi) = dm_kva + dm_len;
	bfa_meminfo_dma_phys(mi) = dm_pa + dm_len;
}

/**
 * Use this function to do attach the driver instance with the BFA
 * library. This function will not trigger any HW initialization
 * process (which will be done in bfa_init() call)
 *
 * This call will fail, if the cap is out of range compared to
 * pre-defined values within the BFA library
 *
 * @param[out]	bfa	Pointer to bfa_t.
 * @param[in]	bfad 	Opaque handle back to the driver's IOC structure
 * @param[in]	cfg	Pointer to bfa_ioc_cfg_t. Should be same structure
 * 			that was used in bfa_cfg_get_meminfo().
 * @param[in] 	meminfo Pointer to bfa_meminfo_t. The driver should
 * 			use the bfa_cfg_get_meminfo() call to
 * 			find the memory blocks required, allocate the
 * 			required memory and provide the starting addresses.
 * @param[in] 	pcidev	pointer to struct bfa_pcidev_s
 *
 * @return
 * void
 *
 * Special Considerations:
 *
 * @note
 *
 */
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)
{
	int             i;
	struct bfa_mem_elem_s *melem;

	bfa->fcs = BFA_FALSE;

	bfa_assert((cfg != NULL) && (meminfo != NULL));

	/**
	 * initialize all memory pointers for iterative allocation
	 */
	for (i = 0; i < BFA_MEM_TYPE_MAX; i++) {
		melem = meminfo->meminfo + i;
		melem->kva_curp = melem->kva;
		melem->dma_curp = melem->dma;
	}

	bfa_iocfc_attach(bfa, bfad, cfg, meminfo, pcidev);

	for (i = 0; hal_mods[i]; i++)
		hal_mods[i]->attach(bfa, bfad, cfg, meminfo, pcidev);

	bfa_com_port_attach(bfa, meminfo);
}

/**
 * Use this function to delete a BFA IOC. IOC should be stopped (by
 * calling bfa_stop()) before this function call.
 *
 * @param[in] bfa - pointer to bfa_t.
 *
 * @return
 * void
 *
 * Special Considerations:
 *
 * @note
 */
void
bfa_detach(struct bfa_s *bfa)
{
	int	i;

	for (i = 0; hal_mods[i]; i++)
		hal_mods[i]->detach(bfa);

	bfa_iocfc_detach(bfa);
}


void
bfa_init_trc(struct bfa_s *bfa, struct bfa_trc_mod_s *trcmod)
{
	bfa->trcmod = trcmod;
}


void
bfa_init_log(struct bfa_s *bfa, struct bfa_log_mod_s *logmod)
{
	bfa->logm = logmod;
}


void
bfa_init_aen(struct bfa_s *bfa, struct bfa_aen_s *aen)
{
	bfa->aen = aen;
}

void
bfa_init_plog(struct bfa_s *bfa, struct bfa_plog_s *plog)
{
	bfa->plog = plog;
}

/**
 * Initialize IOC.
 *
 * This function will return immediately, when the IOC initialization is
 * completed, the bfa_cb_init() will be called.
 *
 * @param[in]	bfa	instance
 *
 * @return void
 *
 * Special Considerations:
 *
 * @note
 * When this function returns, the driver should register the interrupt service
 * routine(s) and enable the device interrupts. If this is not done,
 * bfa_cb_init() will never get called
 */
void
bfa_init(struct bfa_s *bfa)
{
	bfa_iocfc_init(bfa);
}

/**
 * Use this function initiate the IOC configuration setup. This function
 * will return immediately.
 *
 * @param[in]	bfa	instance
 *
 * @return None
 */
void
bfa_start(struct bfa_s *bfa)
{
	bfa_iocfc_start(bfa);
}

/**
 * Use this function quiese the IOC. This function will return immediately,
 * when the IOC is actually stopped, the bfa_cb_stop() will be called.
 *
 * @param[in] 	bfa - pointer to bfa_t.
 *
 * @return None
 *
 * Special Considerations:
 * bfa_cb_stop() could be called before or after bfa_stop() returns.
 *
 * @note
 * In case of any failure, we could handle it automatically by doing a
 * reset and then succeed the bfa_stop() call.
 */
void
bfa_stop(struct bfa_s *bfa)
{
	bfa_iocfc_stop(bfa);
}

void
bfa_comp_deq(struct bfa_s *bfa, struct list_head *comp_q)
{
	INIT_LIST_HEAD(comp_q);
	list_splice_tail_init(&bfa->comp_q, comp_q);
}

void
bfa_comp_process(struct bfa_s *bfa, struct list_head *comp_q)
{
	struct list_head        *qe;
	struct list_head        *qen;
	struct bfa_cb_qe_s   *hcb_qe;

	list_for_each_safe(qe, qen, comp_q) {
		hcb_qe = (struct bfa_cb_qe_s *) qe;
		hcb_qe->cbfn(hcb_qe->cbarg, BFA_TRUE);
	}
}

void
bfa_comp_free(struct bfa_s *bfa, struct list_head *comp_q)
{
	struct list_head        *qe;
	struct bfa_cb_qe_s   *hcb_qe;

	while (!list_empty(comp_q)) {
		bfa_q_deq(comp_q, &qe);
		hcb_qe = (struct bfa_cb_qe_s *) qe;
		hcb_qe->cbfn(hcb_qe->cbarg, BFA_FALSE);
	}
}

void
bfa_attach_fcs(struct bfa_s *bfa)
{
	bfa->fcs = BFA_TRUE;
}

/**
 * Periodic timer heart beat from driver
 */
void
bfa_timer_tick(struct bfa_s *bfa)
{
	bfa_timer_beat(&bfa->timer_mod);
}

#ifndef BFA_BIOS_BUILD
/**
 * Return the list of PCI vendor/device id lists supported by this
 * BFA instance.
 */
void
bfa_get_pciids(struct bfa_pciid_s **pciids, int *npciids)
{
	static struct bfa_pciid_s __pciids[] = {
		{BFA_PCI_VENDOR_ID_BROCADE, BFA_PCI_DEVICE_ID_FC_8G2P},
		{BFA_PCI_VENDOR_ID_BROCADE, BFA_PCI_DEVICE_ID_FC_8G1P},
		{BFA_PCI_VENDOR_ID_BROCADE, BFA_PCI_DEVICE_ID_CT},
	};

	*npciids = sizeof(__pciids) / sizeof(__pciids[0]);
	*pciids = __pciids;
}

/**
 * Use this function query the default struct bfa_iocfc_cfg_s value (compiled
 * into BFA layer). The OS driver can then turn back and overwrite entries that
 * have been configured by the user.
 *
 * @param[in] cfg - pointer to bfa_ioc_cfg_t
 *
 * @return
 *	void
 *
 * Special Considerations:
 * 	note
 */
void
bfa_cfg_get_default(struct bfa_iocfc_cfg_s *cfg)
{
	cfg->fwcfg.num_fabrics = DEF_CFG_NUM_FABRICS;
	cfg->fwcfg.num_lports = DEF_CFG_NUM_LPORTS;
	cfg->fwcfg.num_rports = DEF_CFG_NUM_RPORTS;
	cfg->fwcfg.num_ioim_reqs = DEF_CFG_NUM_IOIM_REQS;
	cfg->fwcfg.num_tskim_reqs = DEF_CFG_NUM_TSKIM_REQS;
	cfg->fwcfg.num_fcxp_reqs = DEF_CFG_NUM_FCXP_REQS;
	cfg->fwcfg.num_uf_bufs = DEF_CFG_NUM_UF_BUFS;
	cfg->fwcfg.num_cqs = DEF_CFG_NUM_CQS;

	cfg->drvcfg.num_reqq_elems = DEF_CFG_NUM_REQQ_ELEMS;
	cfg->drvcfg.num_rspq_elems = DEF_CFG_NUM_RSPQ_ELEMS;
	cfg->drvcfg.num_sgpgs = DEF_CFG_NUM_SGPGS;
	cfg->drvcfg.num_sboot_tgts = DEF_CFG_NUM_SBOOT_TGTS;
	cfg->drvcfg.num_sboot_luns = DEF_CFG_NUM_SBOOT_LUNS;
	cfg->drvcfg.path_tov = BFA_FCPIM_PATHTOV_DEF;
	cfg->drvcfg.ioc_recover = BFA_FALSE;
	cfg->drvcfg.delay_comp = BFA_FALSE;

}

void
bfa_cfg_get_min(struct bfa_iocfc_cfg_s *cfg)
{
	bfa_cfg_get_default(cfg);
	cfg->fwcfg.num_ioim_reqs   = BFA_IOIM_MIN;
	cfg->fwcfg.num_tskim_reqs  = BFA_TSKIM_MIN;
	cfg->fwcfg.num_fcxp_reqs   = BFA_FCXP_MIN;
	cfg->fwcfg.num_uf_bufs     = BFA_UF_MIN;
	cfg->fwcfg.num_rports      = BFA_RPORT_MIN;

	cfg->drvcfg.num_sgpgs      = BFA_SGPG_MIN;
	cfg->drvcfg.num_reqq_elems = BFA_REQQ_NELEMS_MIN;
	cfg->drvcfg.num_rspq_elems = BFA_RSPQ_NELEMS_MIN;
	cfg->drvcfg.min_cfg        = BFA_TRUE;
}

void
bfa_get_attr(struct bfa_s *bfa, struct bfa_ioc_attr_s *ioc_attr)
{
	bfa_ioc_get_attr(&bfa->ioc, ioc_attr);
}

/**
 * Retrieve firmware trace information on IOC failure.
 */
bfa_status_t
bfa_debug_fwsave(struct bfa_s *bfa, void *trcdata, int *trclen)
{
	return bfa_ioc_debug_fwsave(&bfa->ioc, trcdata, trclen);
}

/**
 * Clear the saved firmware trace information of an IOC.
 */
void
bfa_debug_fwsave_clear(struct bfa_s *bfa)
{
	bfa_ioc_debug_fwsave_clear(&bfa->ioc);
}

/**
 * 		Fetch firmware trace data.
 *
 * @param[in]		bfa			BFA instance
 * @param[out]		trcdata		Firmware trace buffer
 * @param[in,out]	trclen		Firmware trace buffer len
 *
 * @retval BFA_STATUS_OK			Firmware trace is fetched.
 * @retval BFA_STATUS_INPROGRESS	Firmware trace fetch is in progress.
 */
bfa_status_t
bfa_debug_fwtrc(struct bfa_s *bfa, void *trcdata, int *trclen)
{
	return bfa_ioc_debug_fwtrc(&bfa->ioc, trcdata, trclen);
}

/**
 * Reset hw semaphore & usage cnt regs and initialize.
 */
void
bfa_chip_reset(struct bfa_s *bfa)
{
	bfa_ioc_ownership_reset(&bfa->ioc);
	bfa_ioc_pll_init(&bfa->ioc);
}
#endif