xref: /freebsd/sys/dev/ocs_fc/ocs_ddump.c (revision 19fae0f66023a97a9b464b3beeeabb2081f575b3)
1 /*-
2  * Copyright (c) 2017 Broadcom. All rights reserved.
3  * The term "Broadcom" refers to Broadcom Limited and/or its subsidiaries.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions are met:
7  *
8  * 1. Redistributions of source code must retain the above copyright notice,
9  *    this list of conditions and the following disclaimer.
10  *
11  * 2. Redistributions in binary form must reproduce the above copyright notice,
12  *    this list of conditions and the following disclaimer in the documentation
13  *    and/or other materials provided with the distribution.
14  *
15  * 3. Neither the name of the copyright holder nor the names of its contributors
16  *    may be used to endorse or promote products derived from this software
17  *    without specific prior written permission.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
20  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
23  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29  * POSSIBILITY OF SUCH DAMAGE.
30  *
31  * $FreeBSD$
32  */
33 
34 /**
35  * @file
36  * generate FC ddump
37  *
38  */
39 
40 #include "ocs.h"
41 #include "ocs_ddump.h"
42 
43 #define DEFAULT_SAVED_DUMP_SIZE		(4*1024*1024)
44 
45 void hw_queue_ddump(ocs_textbuf_t *textbuf, ocs_hw_t *hw);
46 
47 /**
48  * @brief Generate sli4 queue ddump
49  *
50  * Generates sli4 queue ddump data
51  *
52  * @param textbuf pointer to text buffer
53  * @param name name of SLI4 queue
54  * @param hw pointer HW context
55  * @param q pointer to SLI4 queues array
56  * @param q_count count of SLI4 queues
57  * @param qentries number of SLI4 queue entries to dump
58  *
59  * @return none
60  */
61 
62 static void
63 ocs_ddump_sli4_queue(ocs_textbuf_t *textbuf, const char *name, ocs_hw_t *hw, sli4_queue_t *q, uint32_t q_count, uint32_t qentries)
64 {
65 	uint32_t i;
66 
67 	for (i = 0; i < q_count; i ++, q ++) {
68 		ocs_ddump_section(textbuf, name, i);
69 		ocs_ddump_value(textbuf, "index", "%d", q->index);
70 		ocs_ddump_value(textbuf, "size", "%d", q->size);
71 		ocs_ddump_value(textbuf, "length", "%d", q->length);
72 		ocs_ddump_value(textbuf, "n_posted", "%d", q->n_posted);
73 		ocs_ddump_value(textbuf, "id", "%d", q->id);
74 		ocs_ddump_value(textbuf, "type", "%d", q->type);
75 		ocs_ddump_value(textbuf, "proc_limit", "%d", q->proc_limit);
76 		ocs_ddump_value(textbuf, "posted_limit", "%d", q->posted_limit);
77 		ocs_ddump_value(textbuf, "max_num_processed", "%d", q->max_num_processed);
78 		ocs_ddump_value(textbuf, "max_process_time", "%ld", (unsigned long)q->max_process_time);
79 		ocs_ddump_value(textbuf, "virt_addr", "%p", q->dma.virt);
80 		ocs_ddump_value(textbuf, "phys_addr", "%lx", (unsigned long)q->dma.phys);
81 
82 		/* queue-specific information */
83 		switch (q->type) {
84 		case SLI_QTYPE_MQ:
85 			ocs_ddump_value(textbuf, "r_idx", "%d", q->u.r_idx);
86 			break;
87 		case SLI_QTYPE_CQ:
88 			ocs_ddump_value(textbuf, "is_mq", "%d", q->u.flag.is_mq);
89 			break;
90 		case SLI_QTYPE_WQ:
91 			break;
92 		case SLI_QTYPE_RQ: {
93 			uint32_t i;
94 			uint32_t j;
95 			uint32_t rqe_count = 0;
96 			hw_rq_t *rq;
97 
98 			ocs_ddump_value(textbuf, "is_hdr", "%d", q->u.flag.is_hdr);
99 			ocs_ddump_value(textbuf, "rq_batch", "%d", q->u.flag.rq_batch);
100 
101 			/* loop through RQ tracker to see how many RQEs were produced */
102 			for (i = 0; i < hw->hw_rq_count; i++) {
103 				rq = hw->hw_rq[i];
104 				for (j = 0; j < rq->entry_count; j++) {
105 					if (rq->rq_tracker[j] != NULL) {
106 						rqe_count++;
107 					}
108 				}
109 			}
110 			ocs_ddump_value(textbuf, "rqes_produced", "%d", rqe_count);
111 			break;
112 		}
113 		}
114 		ocs_ddump_queue_entries(textbuf, q->dma.virt, q->size, q->length,
115 					((q->type == SLI_QTYPE_MQ) ? q->u.r_idx : q->index),
116 					qentries);
117 		ocs_ddump_endsection(textbuf, name, i);
118 	}
119 }
120 
121 /**
122  * @brief Generate SLI4 ddump
123  *
124  * Generates sli4 ddump
125  *
126  * @param textbuf pointer to text buffer
127  * @param sli4 pointer SLI context
128  * @param qtype SLI4 queue type
129  *
130  * @return none
131  */
132 
133 static void
134 ocs_ddump_sli_q_fields(ocs_textbuf_t *textbuf, sli4_t *sli4, sli4_qtype_e qtype)
135 {
136 	char * q_desc;
137 
138 	switch(qtype) {
139 	case SLI_QTYPE_EQ: q_desc = "EQ"; break;
140 	case SLI_QTYPE_CQ: q_desc = "CQ"; break;
141 	case SLI_QTYPE_MQ: q_desc = "MQ"; break;
142 	case SLI_QTYPE_WQ: q_desc = "WQ"; break;
143 	case SLI_QTYPE_RQ: q_desc = "RQ"; break;
144 	default: q_desc = "unknown"; break;
145 	}
146 
147 	ocs_ddump_section(textbuf, q_desc, qtype);
148 
149 	ocs_ddump_value(textbuf, "max_qcount", "%d", sli4->config.max_qcount[qtype]);
150 	ocs_ddump_value(textbuf, "max_qentries", "%d", sli4->config.max_qentries[qtype]);
151 	ocs_ddump_value(textbuf, "qpage_count", "%d", sli4->config.qpage_count[qtype]);
152 	ocs_ddump_endsection(textbuf, q_desc, qtype);
153 }
154 
155 /**
156  * @brief Generate SLI4 ddump
157  *
158  * Generates sli4 ddump
159  *
160  * @param textbuf pointer to text buffer
161  * @param sli4 pointer SLI context
162  *
163  * @return none
164  */
165 
166 static void
167 ocs_ddump_sli(ocs_textbuf_t *textbuf, sli4_t *sli4)
168 {
169 	sli4_sgl_chaining_params_t *cparams = &sli4->config.sgl_chaining_params;
170 	const char *p;
171 
172 	ocs_ddump_section(textbuf, "sli4", 0);
173 
174 	ocs_ddump_value(textbuf, "sli_rev", "%d", sli4->sli_rev);
175 	ocs_ddump_value(textbuf, "sli_family", "%d", sli4->sli_family);
176 	ocs_ddump_value(textbuf, "if_type", "%d", sli4->if_type);
177 
178 	switch(sli4->asic_type) {
179 	case SLI4_ASIC_TYPE_BE3:	p = "BE3"; break;
180 	case SLI4_ASIC_TYPE_SKYHAWK:	p = "Skyhawk"; break;
181 	case SLI4_ASIC_TYPE_LANCER:	p = "Lancer"; break;
182 	case SLI4_ASIC_TYPE_LANCERG6:	p = "LancerG6"; break;
183 	default:			p = "unknown"; break;
184 	}
185 	ocs_ddump_value(textbuf, "asic_type", "%s", p);
186 
187 	switch(sli4->asic_rev) {
188 	case SLI4_ASIC_REV_FPGA:	p = "fpga"; break;
189 	case SLI4_ASIC_REV_A0:		p = "A0"; break;
190 	case SLI4_ASIC_REV_A1:		p = "A1"; break;
191 	case SLI4_ASIC_REV_A2:		p = "A2"; break;
192 	case SLI4_ASIC_REV_A3:		p = "A3"; break;
193 	case SLI4_ASIC_REV_B0:		p = "B0"; break;
194 	case SLI4_ASIC_REV_C0:		p = "C0"; break;
195 	case SLI4_ASIC_REV_D0:		p = "D0"; break;
196 	default:			p = "unknown"; break;
197 	}
198 	ocs_ddump_value(textbuf, "asic_rev", "%s", p);
199 
200 	ocs_ddump_value(textbuf, "e_d_tov", "%d", sli4->config.e_d_tov);
201 	ocs_ddump_value(textbuf, "r_a_tov", "%d", sli4->config.r_a_tov);
202 	ocs_ddump_value(textbuf, "link_module_type", "%d", sli4->config.link_module_type);
203 	ocs_ddump_value(textbuf, "rq_batch", "%d", sli4->config.rq_batch);
204 	ocs_ddump_value(textbuf, "topology", "%d", sli4->config.topology);
205 	ocs_ddump_value(textbuf, "wwpn", "%02x%02x%02x%02x%02x%02x%02x%02x",
206 			 sli4->config.wwpn[0],
207 			 sli4->config.wwpn[1],
208 			 sli4->config.wwpn[2],
209 			 sli4->config.wwpn[3],
210 			 sli4->config.wwpn[4],
211 			 sli4->config.wwpn[5],
212 			 sli4->config.wwpn[6],
213 			 sli4->config.wwpn[7]);
214 	ocs_ddump_value(textbuf, "wwnn", "%02x%02x%02x%02x%02x%02x%02x%02x",
215 			 sli4->config.wwnn[0],
216 			 sli4->config.wwnn[1],
217 			 sli4->config.wwnn[2],
218 			 sli4->config.wwnn[3],
219 			 sli4->config.wwnn[4],
220 			 sli4->config.wwnn[5],
221 			 sli4->config.wwnn[6],
222 			 sli4->config.wwnn[7]);
223 	ocs_ddump_value(textbuf, "fw_rev0", "%d", sli4->config.fw_rev[0]);
224 	ocs_ddump_value(textbuf, "fw_rev1", "%d", sli4->config.fw_rev[1]);
225 	ocs_ddump_value(textbuf, "fw_name0", "%s", (char*)sli4->config.fw_name[0]);
226 	ocs_ddump_value(textbuf, "fw_name1", "%s", (char*)sli4->config.fw_name[1]);
227 	ocs_ddump_value(textbuf, "hw_rev0", "%x", sli4->config.hw_rev[0]);
228 	ocs_ddump_value(textbuf, "hw_rev1", "%x", sli4->config.hw_rev[1]);
229 	ocs_ddump_value(textbuf, "hw_rev2", "%x", sli4->config.hw_rev[2]);
230 	ocs_ddump_value(textbuf, "sge_supported_length", "%x", sli4->config.sge_supported_length);
231 	ocs_ddump_value(textbuf, "sgl_page_sizes", "%x", sli4->config.sgl_page_sizes);
232 	ocs_ddump_value(textbuf, "max_sgl_pages", "%x", sli4->config.max_sgl_pages);
233 	ocs_ddump_value(textbuf, "high_login_mode", "%x", sli4->config.high_login_mode);
234 	ocs_ddump_value(textbuf, "sgl_pre_registered", "%x", sli4->config.sgl_pre_registered);
235 	ocs_ddump_value(textbuf, "sgl_pre_registration_required", "%x", sli4->config.sgl_pre_registration_required);
236 
237 	ocs_ddump_value(textbuf, "sgl_chaining_capable", "%x", cparams->chaining_capable);
238 	ocs_ddump_value(textbuf, "frag_num_field_offset", "%x", cparams->frag_num_field_offset);
239 	ocs_ddump_value(textbuf, "frag_num_field_mask", "%016llx", (unsigned long long)cparams->frag_num_field_mask);
240 	ocs_ddump_value(textbuf, "sgl_index_field_offset", "%x", cparams->sgl_index_field_offset);
241 	ocs_ddump_value(textbuf, "sgl_index_field_mask", "%016llx", (unsigned long long)cparams->sgl_index_field_mask);
242 	ocs_ddump_value(textbuf, "chain_sge_initial_value_lo", "%x", cparams->chain_sge_initial_value_lo);
243 	ocs_ddump_value(textbuf, "chain_sge_initial_value_hi", "%x", cparams->chain_sge_initial_value_hi);
244 
245 	ocs_ddump_value(textbuf, "max_vfi", "%d", sli_get_max_rsrc(sli4, SLI_RSRC_FCOE_VFI));
246 	ocs_ddump_value(textbuf, "max_vpi", "%d", sli_get_max_rsrc(sli4, SLI_RSRC_FCOE_VPI));
247 	ocs_ddump_value(textbuf, "max_rpi", "%d", sli_get_max_rsrc(sli4, SLI_RSRC_FCOE_RPI));
248 	ocs_ddump_value(textbuf, "max_xri", "%d", sli_get_max_rsrc(sli4, SLI_RSRC_FCOE_XRI));
249 	ocs_ddump_value(textbuf, "max_fcfi", "%d", sli_get_max_rsrc(sli4, SLI_RSRC_FCOE_FCFI));
250 
251 	ocs_ddump_sli_q_fields(textbuf, sli4, SLI_QTYPE_EQ);
252 	ocs_ddump_sli_q_fields(textbuf, sli4, SLI_QTYPE_CQ);
253 	ocs_ddump_sli_q_fields(textbuf, sli4, SLI_QTYPE_MQ);
254 	ocs_ddump_sli_q_fields(textbuf, sli4, SLI_QTYPE_WQ);
255 	ocs_ddump_sli_q_fields(textbuf, sli4, SLI_QTYPE_RQ);
256 
257 	ocs_ddump_endsection(textbuf, "sli4", 0);
258 }
259 
260 /**
261  * @brief Dump HW IO
262  *
263  * Dump HW IO
264  *
265  * @param textbuf pointer to text buffer
266  * @param io pointer to HW IO object
267  *
268  * @return none
269  */
270 
271 static void
272 ocs_ddump_hw_io(ocs_textbuf_t *textbuf, ocs_hw_io_t *io)
273 {
274 	ocs_assert(io);
275 
276 	ocs_ddump_section(textbuf, "hw_io", io->indicator);
277 
278 	ocs_ddump_value(textbuf, "state", "%d", io->state);
279 	ocs_ddump_value(textbuf, "xri", "0x%x", io->indicator);
280 	ocs_ddump_value(textbuf, "tag", "0x%x", io->reqtag);
281 	ocs_ddump_value(textbuf, "abort_reqtag", "0x%x", io->abort_reqtag);
282 	ocs_ddump_value(textbuf, "ref_count", "%d", ocs_ref_read_count(&io->ref));
283 
284 	/* just to make it obvious, display abort bit from tag */
285 	ocs_ddump_value(textbuf, "abort", "0x%x", io->abort_in_progress);
286 	ocs_ddump_value(textbuf, "wq_index", "%d", (io->wq == NULL ? 0xffff : io->wq->instance));
287 	ocs_ddump_value(textbuf, "type", "%d", io->type);
288 	ocs_ddump_value(textbuf, "xbusy", "%d", io->xbusy);
289 	ocs_ddump_value(textbuf, "active_wqe_link", "%d", ocs_list_on_list(&io->wqe_link));
290 	ocs_ddump_value(textbuf, "def_sgl_count", "%d", io->def_sgl_count);
291 	ocs_ddump_value(textbuf, "n_sge", "%d", io->n_sge);
292 	ocs_ddump_value(textbuf, "has_ovfl_sgl", "%s", (io->ovfl_sgl != NULL ? "TRUE" : "FALSE"));
293 	ocs_ddump_value(textbuf, "has_ovfl_io", "%s", (io->ovfl_io != NULL ? "TRUE" : "FALSE"));
294 
295 	ocs_ddump_endsection(textbuf, "hw_io", io->indicator);
296 }
297 
298 #if defined(OCS_DEBUG_QUEUE_HISTORY)
299 
300 /**
301  * @brief Generate queue history ddump
302  *
303  * @param textbuf pointer to text buffer
304  * @param q_hist Pointer to queue history object.
305  */
306 static void
307 ocs_ddump_queue_history(ocs_textbuf_t *textbuf, ocs_hw_q_hist_t *q_hist)
308 {
309 	uint32_t x;
310 
311 	ocs_ddump_section(textbuf, "q_hist", 0);
312 	ocs_ddump_value(textbuf, "count", "%ld", OCS_Q_HIST_SIZE);
313 	ocs_ddump_value(textbuf, "index", "%d", q_hist->q_hist_index);
314 
315 	if (q_hist->q_hist == NULL) {
316 		ocs_ddump_section(textbuf, "history", 0);
317 		ocs_textbuf_printf(textbuf, "No history available\n");
318 		ocs_ddump_endsection(textbuf, "history", 0);
319 		ocs_ddump_endsection(textbuf, "q_hist", 0);
320 		return;
321 	}
322 
323 	/* start from last entry and go backwards */
324 	ocs_textbuf_printf(textbuf, "<history>\n");
325 	ocs_textbuf_printf(textbuf, "(newest first):\n");
326 
327 	ocs_lock(&q_hist->q_hist_lock);
328 	x = ocs_queue_history_prev_index(q_hist->q_hist_index);
329 	do {
330 		int i;
331 		ocs_q_hist_ftr_t ftr;
332 		uint32_t mask;
333 
334 		/* footer's mask indicates what words were captured */
335 		ftr.word = q_hist->q_hist[x];
336 		mask = ftr.s.mask;
337 		i = 0;
338 
339 		/* if we've encountered a mask of 0, must be done */
340 		if (mask == 0) {
341 			break;
342 		}
343 
344 		/* display entry type */
345 		ocs_textbuf_printf(textbuf, "%s:\n",
346 				   ocs_queue_history_type_name(ftr.s.type));
347 
348 		if (ocs_queue_history_timestamp_enabled()) {
349 			uint64_t tsc_value;
350 			x = ocs_queue_history_prev_index(x);
351 			tsc_value = ((q_hist->q_hist[x]) & 0x00000000FFFFFFFFull);
352 			x = ocs_queue_history_prev_index(x);
353 			tsc_value |= (((uint64_t)q_hist->q_hist[x] << 32) & 0xFFFFFFFF00000000ull);
354 			ocs_textbuf_printf(textbuf, " t: %" PRIu64 "\n", tsc_value);
355 		}
356 
357 		if (ocs_queue_history_q_info_enabled()) {
358 			if (ftr.s.type == OCS_Q_HIST_TYPE_CWQE ||
359 			    ftr.s.type == OCS_Q_HIST_TYPE_CXABT ||
360 			    ftr.s.type == OCS_Q_HIST_TYPE_WQE) {
361 				x = ocs_queue_history_prev_index(x);
362 				ocs_textbuf_printf(textbuf, " qid=0x%x idx=0x%x\n",
363 						   ((q_hist->q_hist[x] >> 16) & 0xFFFF),
364 						   ((q_hist->q_hist[x] >> 0) & 0xFFFF));
365 			}
366 		}
367 
368 		while (mask) {
369 			if ((mask & 1) && (x != q_hist->q_hist_index)){
370 				/* get next word */
371 				x = ocs_queue_history_prev_index(x);
372 				ocs_textbuf_printf(textbuf, " [%d]=%x\n",
373 						   i, q_hist->q_hist[x]);
374 			}
375 			mask = (mask >> 1UL);
376 			i++;
377 		}
378 
379 		/* go backwards to next element */
380 		x = ocs_queue_history_prev_index(x);
381 	} while (x != ocs_queue_history_prev_index(q_hist->q_hist_index));
382 	ocs_unlock(&q_hist->q_hist_lock);
383 
384 	ocs_textbuf_printf(textbuf, "</history>\n");
385 	ocs_ddump_endsection(textbuf, "q_hist", 0);
386 }
387 #endif
388 
389 /**
390  * @brief Generate hw ddump
391  *
392  * Generates hw ddump
393  *
394  * @param textbuf pointer to text buffer
395  * @param hw pointer HW context
396  * @param flags ddump flags
397  * @param qentries number of qentries to dump
398  *
399  * @return none
400  */
401 
402 static void
403 ocs_ddump_hw(ocs_textbuf_t *textbuf, ocs_hw_t *hw, uint32_t flags, uint32_t qentries)
404 {
405 	ocs_t *ocs = hw->os;
406 	uint32_t cnt = 0;
407 	ocs_hw_io_t *io = NULL;
408 	uint32_t i;
409 	uint32_t j;
410 	uint32_t max_rpi = sli_get_max_rsrc(&hw->sli, SLI_RSRC_FCOE_RPI);
411 
412 	ocs_assert(ocs);
413 
414 	ocs_ddump_section(textbuf, "hw", ocs->instance_index);
415 
416 	/* device specific information */
417 	switch(hw->sli.if_type) {
418 	case 0:
419 		ocs_ddump_value(textbuf, "uerr_mask_hi", "%08x",
420 				 sli_reg_read(&hw->sli, SLI4_REG_UERR_MASK_HI));
421 		ocs_ddump_value(textbuf, "uerr_mask_lo", "%08x",
422 				 sli_reg_read(&hw->sli, SLI4_REG_UERR_MASK_LO));
423 		ocs_ddump_value(textbuf, "uerr_status_hi", "%08x",
424 				 sli_reg_read(&hw->sli, SLI4_REG_UERR_STATUS_HI));
425 		ocs_ddump_value(textbuf, "uerr_status_lo", "%08x",
426 				 sli_reg_read(&hw->sli, SLI4_REG_UERR_STATUS_LO));
427 		break;
428 	case 2:
429 		ocs_ddump_value(textbuf, "sliport_status", "%08x",
430 				 sli_reg_read(&hw->sli, SLI4_REG_SLIPORT_STATUS));
431 		ocs_ddump_value(textbuf, "sliport_error1", "%08x",
432 				 sli_reg_read(&hw->sli, SLI4_REG_SLIPORT_ERROR1));
433 		ocs_ddump_value(textbuf, "sliport_error2", "%08x",
434 				 sli_reg_read(&hw->sli, SLI4_REG_SLIPORT_ERROR2));
435 		break;
436 	}
437 
438 	ocs_ddump_value(textbuf, "link_status", "%d", hw->link.status);
439 	ocs_ddump_value(textbuf, "link_speed", "%d", hw->link.speed);
440 	ocs_ddump_value(textbuf, "link_topology", "%d", hw->link.topology);
441 	ocs_ddump_value(textbuf, "state", "%d", hw->state);
442 	ocs_ddump_value(textbuf, "io_alloc_failed_count", "%d", ocs_atomic_read(&hw->io_alloc_failed_count));
443 	ocs_ddump_value(textbuf, "n_io", "%d", hw->config.n_io);
444 
445 	ocs_ddump_value(textbuf, "queue_topology", "%s", hw->config.queue_topology);
446 	ocs_ddump_value(textbuf, "rq_selection_policy", "%d", hw->config.rq_selection_policy);
447 	ocs_ddump_value(textbuf, "rr_quanta", "%d", hw->config.rr_quanta);
448 	for (i = 0; i < ARRAY_SIZE(hw->config.filter_def); i++) {
449 		ocs_ddump_value(textbuf, "filter_def", "%08X", hw->config.filter_def[i]);
450 	}
451 	ocs_ddump_value(textbuf, "n_eq", "%d", hw->eq_count);
452 	ocs_ddump_value(textbuf, "n_cq", "%d", hw->cq_count);
453 	ocs_ddump_value(textbuf, "n_mq", "%d", hw->mq_count);
454 	ocs_ddump_value(textbuf, "n_rq", "%d", hw->rq_count);
455 	ocs_ddump_value(textbuf, "n_wq", "%d", hw->wq_count);
456 	ocs_ddump_value(textbuf, "n_sgl", "%d", hw->config.n_sgl);
457 
458 	ocs_ddump_sli(textbuf, &hw->sli);
459 
460 	ocs_ddump_sli4_queue(textbuf, "wq", hw, hw->wq, hw->wq_count,
461 			((flags & OCS_DDUMP_FLAGS_WQES) ? qentries : 0));
462 	ocs_ddump_sli4_queue(textbuf, "rq", hw, hw->rq, hw->rq_count,
463 			((flags & OCS_DDUMP_FLAGS_RQES) ? qentries : 0));
464 	ocs_ddump_sli4_queue(textbuf, "mq", hw, hw->mq, hw->mq_count,
465 			((flags & OCS_DDUMP_FLAGS_MQES) ? qentries : 0));
466 	ocs_ddump_sli4_queue(textbuf, "cq", hw, hw->cq, hw->cq_count,
467 			((flags & OCS_DDUMP_FLAGS_CQES) ? qentries : 0));
468 	ocs_ddump_sli4_queue(textbuf, "eq", hw, hw->eq, hw->eq_count,
469 			((flags & OCS_DDUMP_FLAGS_EQES) ? qentries : 0));
470 
471 	/* dump the IO quarantine list */
472 	for (i = 0; i < hw->wq_count; i++) {
473 		ocs_ddump_section(textbuf, "io_quarantine", i);
474 		ocs_ddump_value(textbuf, "quarantine_index", "%d", hw->hw_wq[i]->quarantine_info.quarantine_index);
475 		for (j = 0; j < OCS_HW_QUARANTINE_QUEUE_DEPTH; j++) {
476 			if (hw->hw_wq[i]->quarantine_info.quarantine_ios[j] != NULL) {
477 				ocs_ddump_hw_io(textbuf, hw->hw_wq[i]->quarantine_info.quarantine_ios[j]);
478 			}
479 		}
480 		ocs_ddump_endsection(textbuf, "io_quarantine", i);
481 	}
482 
483 	ocs_ddump_section(textbuf, "workaround", ocs->instance_index);
484 	ocs_ddump_value(textbuf, "fwrev", "%08llx", (unsigned long long)hw->workaround.fwrev);
485 	ocs_ddump_endsection(textbuf, "workaround", ocs->instance_index);
486 
487 	ocs_lock(&hw->io_lock);
488 		ocs_ddump_section(textbuf, "io_inuse", ocs->instance_index);
489 		ocs_list_foreach(&hw->io_inuse, io) {
490 			ocs_ddump_hw_io(textbuf, io);
491 		}
492 		ocs_ddump_endsection(textbuf, "io_inuse", ocs->instance_index);
493 
494 		ocs_ddump_section(textbuf, "io_wait_free", ocs->instance_index);
495 		ocs_list_foreach(&hw->io_wait_free, io) {
496 			ocs_ddump_hw_io(textbuf, io);
497 		}
498 		ocs_ddump_endsection(textbuf, "io_wait_free", ocs->instance_index);
499 		ocs_ddump_section(textbuf, "io_free", ocs->instance_index);
500 		ocs_list_foreach(&hw->io_free, io) {
501 			if (io->xbusy) {
502 				/* only display free ios if they're active */
503 				ocs_ddump_hw_io(textbuf, io);
504 			}
505 			cnt++;
506 		}
507 		ocs_ddump_endsection(textbuf, "io_free", ocs->instance_index);
508 		ocs_ddump_value(textbuf, "ios_free", "%d", cnt);
509 
510 	ocs_ddump_value(textbuf, "sec_hio_wait_count", "%d", hw->sec_hio_wait_count);
511 	ocs_unlock(&hw->io_lock);
512 
513 	/* now check the IOs not in a list; i.e. sequence coalescing xris */
514 	ocs_ddump_section(textbuf, "port_owned_ios", ocs->instance_index);
515 	for (i = 0; i < hw->config.n_io; i++) {
516 		io = hw->io[i];
517 		if (!io)
518 			continue;
519 
520 		if (ocs_hw_is_xri_port_owned(hw, io->indicator)) {
521 			if (ocs_ref_read_count(&io->ref)) {
522 				/* only display free ios if they're active */
523 				ocs_ddump_hw_io(textbuf, io);
524 			}
525 		}
526 	}
527 	ocs_ddump_endsection(textbuf, "port_owned_ios", ocs->instance_index);
528 
529 	ocs_textbuf_printf(textbuf, "<rpi_ref>");
530 	for (i = 0; i < max_rpi; i++) {
531 		if (ocs_atomic_read(&hw->rpi_ref[i].rpi_attached) ||
532 			ocs_atomic_read(&hw->rpi_ref[i].rpi_count) ) {
533 			ocs_textbuf_printf(textbuf, "[%d] att=%d cnt=%d\n", i,
534 				ocs_atomic_read(&hw->rpi_ref[i].rpi_attached),
535 				ocs_atomic_read(&hw->rpi_ref[i].rpi_count));
536 		}
537 	}
538 	ocs_textbuf_printf(textbuf, "</rpi_ref>");
539 
540 	for (i = 0; i < hw->wq_count; i++) {
541 		ocs_ddump_value(textbuf, "wq_submit", "%d", hw->tcmd_wq_submit[i]);
542 	}
543 	for (i = 0; i < hw->wq_count; i++) {
544 		ocs_ddump_value(textbuf, "wq_complete", "%d", hw->tcmd_wq_complete[i]);
545 	}
546 
547 	hw_queue_ddump(textbuf, hw);
548 
549 	ocs_ddump_endsection(textbuf, "hw", ocs->instance_index);
550 
551 }
552 
553 void
554 hw_queue_ddump(ocs_textbuf_t *textbuf, ocs_hw_t *hw)
555 {
556 	hw_eq_t *eq;
557 	hw_cq_t *cq;
558 	hw_q_t *q;
559 	hw_mq_t *mq;
560 	hw_wq_t *wq;
561 	hw_rq_t *rq;
562 
563 	ocs_ddump_section(textbuf, "hw_queue", 0);
564 	ocs_list_foreach(&hw->eq_list, eq) {
565 		ocs_ddump_section(textbuf, "eq", eq->instance);
566 		ocs_ddump_value(textbuf, "queue-id", "%d", eq->queue->id);
567 		OCS_STAT(ocs_ddump_value(textbuf, "use_count", "%d", eq->use_count));
568 		ocs_list_foreach(&eq->cq_list, cq) {
569 			ocs_ddump_section(textbuf, "cq", cq->instance);
570 			ocs_ddump_value(textbuf, "queue-id", "%d", cq->queue->id);
571 			OCS_STAT(ocs_ddump_value(textbuf, "use_count", "%d", cq->use_count));
572 			ocs_list_foreach(&cq->q_list, q) {
573 				switch(q->type) {
574 				case SLI_QTYPE_MQ:
575 					mq = (hw_mq_t *) q;
576 					ocs_ddump_section(textbuf, "mq", mq->instance);
577 					ocs_ddump_value(textbuf, "queue-id", "%d", mq->queue->id);
578 					OCS_STAT(ocs_ddump_value(textbuf, "use_count", "%d", mq->use_count));
579 					ocs_ddump_endsection(textbuf, "mq", mq->instance);
580 					break;
581 				case SLI_QTYPE_WQ:
582 					wq = (hw_wq_t *) q;
583 					ocs_ddump_section(textbuf, "wq", wq->instance);
584 					ocs_ddump_value(textbuf, "queue-id", "%d", wq->queue->id);
585 					OCS_STAT(ocs_ddump_value(textbuf, "use_count", "%d", wq->use_count));
586 					ocs_ddump_value(textbuf, "wqec_count", "%d", wq->wqec_count);
587 					ocs_ddump_value(textbuf, "free_count", "%d", wq->free_count);
588 					OCS_STAT(ocs_ddump_value(textbuf, "wq_pending_count", "%d",
589 								 wq->wq_pending_count));
590 					ocs_ddump_endsection(textbuf, "wq", wq->instance);
591 					break;
592 				case SLI_QTYPE_RQ:
593 					rq = (hw_rq_t *) q;
594 					ocs_ddump_section(textbuf, "rq", rq->instance);
595 					OCS_STAT(ocs_ddump_value(textbuf, "use_count", "%d", rq->use_count));
596 					ocs_ddump_value(textbuf, "filter_mask", "%d", rq->filter_mask);
597 					if (rq->hdr != NULL) {
598 						ocs_ddump_value(textbuf, "hdr-id", "%d", rq->hdr->id);
599 						OCS_STAT(ocs_ddump_value(textbuf, "hdr_use_count", "%d", rq->hdr_use_count));
600 					}
601 					if (rq->first_burst != NULL) {
602 						OCS_STAT(ocs_ddump_value(textbuf, "fb-id", "%d", rq->first_burst->id));
603 						OCS_STAT(ocs_ddump_value(textbuf, "fb_use_count", "%d", rq->fb_use_count));
604 					}
605 					if (rq->data != NULL) {
606 						OCS_STAT(ocs_ddump_value(textbuf, "payload-id", "%d", rq->data->id));
607 						OCS_STAT(ocs_ddump_value(textbuf, "payload_use_count", "%d", rq->payload_use_count));
608 					}
609 					ocs_ddump_endsection(textbuf, "rq", rq->instance);
610 					break;
611 				default:
612 					break;
613 				}
614 			}
615 			ocs_ddump_endsection(textbuf, "cq", cq->instance);
616 		}
617 		ocs_ddump_endsection(textbuf, "eq", eq->instance);
618 	}
619 	ocs_ddump_endsection(textbuf, "hw_queue", 0);
620 }
621 
622 /**
623  * @brief Initiate ddump
624  *
625  * Traverses the ocs/domain/port/node/io data structures to generate a driver
626  * dump.
627  *
628  * @param ocs pointer to device context
629  * @param textbuf pointer to text buffer
630  * @param flags ddump flags
631  * @param qentries number of queue entries to dump
632  *
633  * @return Returns 0 on success, or a negative value on failure.
634  */
635 
636 int
637 ocs_ddump(ocs_t *ocs, ocs_textbuf_t *textbuf, uint32_t flags, uint32_t qentries)
638 {
639 	ocs_xport_t *xport = ocs->xport;
640 	ocs_domain_t *domain;
641 	uint32_t instance;
642 	ocs_vport_spec_t *vport;
643 	ocs_io_t *io;
644 	int retval = 0;
645 	uint32_t i;
646 
647 	ocs_ddump_startfile(textbuf);
648 
649 	ocs_ddump_section(textbuf, "ocs", ocs->instance_index);
650 
651 	ocs_ddump_section(textbuf, "ocs_os", ocs->instance_index);
652 #ifdef OCS_ENABLE_NUMA_SUPPORT
653 	ocs_ddump_value(textbuf, "numa_node", "%d", ocs->ocs_os.numa_node);
654 #endif
655 	ocs_ddump_endsection(textbuf, "ocs_os", ocs->instance_index);
656 
657 	ocs_ddump_value(textbuf, "drv_name", "%s", DRV_NAME);
658 	ocs_ddump_value(textbuf, "drv_version", "%s", DRV_VERSION);
659 	ocs_ddump_value(textbuf, "display_name", "%s", ocs->display_name);
660 	ocs_ddump_value(textbuf, "enable_ini", "%d", ocs->enable_ini);
661 	ocs_ddump_value(textbuf, "enable_tgt", "%d", ocs->enable_tgt);
662 	ocs_ddump_value(textbuf, "nodes_count", "%d", xport->nodes_count);
663 	ocs_ddump_value(textbuf, "enable_hlm", "%d", ocs->enable_hlm);
664 	ocs_ddump_value(textbuf, "hlm_group_size", "%d", ocs->hlm_group_size);
665 	ocs_ddump_value(textbuf, "auto_xfer_rdy_size", "%d", ocs->auto_xfer_rdy_size);
666 	ocs_ddump_value(textbuf, "io_alloc_failed_count", "%d", ocs_atomic_read(&xport->io_alloc_failed_count));
667 	ocs_ddump_value(textbuf, "io_active_count", "%d", ocs_atomic_read(&xport->io_active_count));
668 	ocs_ddump_value(textbuf, "io_pending_count", "%d", ocs_atomic_read(&xport->io_pending_count));
669 	ocs_ddump_value(textbuf, "io_total_alloc", "%d", ocs_atomic_read(&xport->io_total_alloc));
670 	ocs_ddump_value(textbuf, "io_total_free", "%d", ocs_atomic_read(&xport->io_total_free));
671 	ocs_ddump_value(textbuf, "io_total_pending", "%d", ocs_atomic_read(&xport->io_total_pending));
672 	ocs_ddump_value(textbuf, "io_pending_recursing", "%d", ocs_atomic_read(&xport->io_pending_recursing));
673 	ocs_ddump_value(textbuf, "max_isr_time_msec", "%d", ocs->max_isr_time_msec);
674 	for (i = 0; i < SLI4_MAX_FCFI; i++) {
675 		ocs_lock(&xport->fcfi[i].pend_frames_lock);
676 		if (!ocs_list_empty(&xport->fcfi[i].pend_frames)) {
677 			ocs_hw_sequence_t *frame;
678 			ocs_ddump_section(textbuf, "pending_frames", i);
679 			ocs_ddump_value(textbuf, "hold_frames", "%d", xport->fcfi[i].hold_frames);
680 			ocs_list_foreach(&xport->fcfi[i].pend_frames, frame) {
681 				fc_header_t *hdr;
682 				char buf[128];
683 
684 				hdr = frame->header->dma.virt;
685 				ocs_snprintf(buf, sizeof(buf), "%02x/%04x/%04x len %zu",
686 				 hdr->r_ctl, ocs_be16toh(hdr->ox_id), ocs_be16toh(hdr->rx_id),
687 				 frame->payload->dma.len);
688 				ocs_ddump_value(textbuf, "frame", "%s", buf);
689 			}
690 			ocs_ddump_endsection(textbuf, "pending_frames", i);
691 		}
692 		ocs_unlock(&xport->fcfi[i].pend_frames_lock);
693 	}
694 
695 	ocs_lock(&xport->io_pending_lock);
696 		ocs_ddump_section(textbuf, "io_pending_list", ocs->instance_index);
697 		ocs_list_foreach(&xport->io_pending_list, io) {
698 			ocs_ddump_io(textbuf, io);
699 		}
700 		ocs_ddump_endsection(textbuf, "io_pending_list", ocs->instance_index);
701 	ocs_unlock(&xport->io_pending_lock);
702 
703 #if defined(ENABLE_LOCK_DEBUG)
704 	/* Dump the lock list */
705 	ocs_ddump_section(textbuf, "locks", 0);
706 	ocs_lock(&ocs->ocs_os.locklist_lock); {
707 		ocs_lock_t *l;
708 		uint32_t idx = 0;
709 		ocs_list_foreach(&ocs->ocs_os.locklist, l) {
710 			ocs_ddump_section(textbuf, "lock", idx);
711 			ocs_ddump_value(textbuf, "name", "%s", l->name);
712 			ocs_ddump_value(textbuf, "inuse", "%d", l->inuse);
713 			ocs_ddump_value(textbuf, "caller", "%p", l->caller[0]);
714 			ocs_ddump_value(textbuf, "pid", "%08x", l->pid.l);
715 			ocs_ddump_endsection(textbuf, "lock", idx);
716 			idx++;
717 		}
718 	} ocs_unlock(&ocs->ocs_os.locklist_lock);
719 	ocs_ddump_endsection(textbuf, "locks", 0);
720 #endif
721 
722 	/* Dump any pending vports */
723 	if (ocs_device_lock_try(ocs) != TRUE) {
724 		/* Didn't get the lock */
725 		return -1;
726 	}
727 		instance = 0;
728 		ocs_list_foreach(&xport->vport_list, vport) {
729 			ocs_ddump_section(textbuf, "vport_spec", instance);
730 			ocs_ddump_value(textbuf, "domain_instance", "%d", vport->domain_instance);
731 			ocs_ddump_value(textbuf, "wwnn", "%llx", (unsigned long long)vport->wwnn);
732 			ocs_ddump_value(textbuf, "wwpn", "%llx", (unsigned long long)vport->wwpn);
733 			ocs_ddump_value(textbuf, "fc_id", "0x%x", vport->fc_id);
734 			ocs_ddump_value(textbuf, "enable_tgt", "%d", vport->enable_tgt);
735 			ocs_ddump_value(textbuf, "enable_ini", "%d" PRIx64, vport->enable_ini);
736 			ocs_ddump_endsection(textbuf, "vport_spec", instance ++);
737 		}
738 	ocs_device_unlock(ocs);
739 
740 	/* Dump target and initiator private data */
741 	ocs_scsi_ini_ddump(textbuf, OCS_SCSI_DDUMP_DEVICE, ocs);
742 	ocs_scsi_tgt_ddump(textbuf, OCS_SCSI_DDUMP_DEVICE, ocs);
743 
744 	ocs_ddump_hw(textbuf, &ocs->hw, flags, qentries);
745 
746 	if (ocs_device_lock_try(ocs) != TRUE) {
747 		/* Didn't get the lock */
748 		return -1;
749 	}
750 		/* Here the device lock is held */
751 		ocs_list_foreach(&ocs->domain_list, domain) {
752 			retval = ocs_ddump_domain(textbuf, domain);
753 			if (retval != 0) {
754 				break;
755 			}
756 		}
757 
758 		/* Dump ramlog */
759 		ocs_ddump_ramlog(textbuf, ocs->ramlog);
760 	ocs_device_unlock(ocs);
761 
762 #if !defined(OCS_DEBUG_QUEUE_HISTORY)
763 	ocs_ddump_section(textbuf, "q_hist", ocs->instance_index);
764 	ocs_textbuf_printf(textbuf, "<history>\n");
765 	ocs_textbuf_printf(textbuf, "No history available\n");
766 	ocs_textbuf_printf(textbuf, "</history>\n");
767 	ocs_ddump_endsection(textbuf, "q_hist", ocs->instance_index);
768 #else
769 	ocs_ddump_queue_history(textbuf, &ocs->hw.q_hist);
770 #endif
771 
772 #if defined(OCS_DEBUG_MEMORY)
773 	ocs_memory_allocated_ddump(textbuf);
774 #endif
775 
776 	ocs_ddump_endsection(textbuf, "ocs", ocs->instance_index);
777 
778 	ocs_ddump_endfile(textbuf);
779 
780 	return retval;
781 }
782 
783 /**
784  * @brief Capture and save ddump
785  *
786  * Captures and saves a ddump to the ocs_t structure to save the
787  * current state. The goal of this function is to save a ddump
788  * as soon as an issue is encountered. The saved ddump will be
789  * kept until the user reads it.
790  *
791  * @param ocs pointer to device context
792  * @param flags ddump flags
793  * @param qentries number of queue entries to dump
794  *
795  * @return 0 if ddump was saved; > 0 of one already exists; < 0
796  * error
797  */
798 
799 int32_t
800 ocs_save_ddump(ocs_t *ocs, uint32_t flags, uint32_t qentries)
801 {
802 	if (ocs_textbuf_get_written(&ocs->ddump_saved) > 0) {
803 		ocs_log_debug(ocs, "Saved ddump already exists\n");
804 		return 1;
805 	}
806 
807 	if (!ocs_textbuf_initialized(&ocs->ddump_saved)) {
808 		ocs_log_err(ocs, "Saved ddump not allocated\n");
809 		return -1;
810 	}
811 
812 	ocs_log_debug(ocs, "Saving ddump\n");
813 	ocs_ddump(ocs, &ocs->ddump_saved, flags, qentries);
814 	ocs_log_debug(ocs, "Saved ddump: %d bytes written\n", ocs_textbuf_get_written(&ocs->ddump_saved));
815 	return 0;
816 }
817 
818 /**
819  * @brief Capture and save ddump for all OCS instances
820  *
821  * Calls ocs_save_ddump() for each OCS instance.
822  *
823  * @param flags ddump flags
824  * @param qentries number of queue entries to dump
825  * @param alloc_flag allocate dump buffer if not already allocated
826  *
827  * @return 0 if ddump was saved; > 0 of one already exists; < 0
828  * error
829  */
830 
831 int32_t
832 ocs_save_ddump_all(uint32_t flags, uint32_t qentries, uint32_t alloc_flag)
833 {
834 	ocs_t *ocs;
835 	uint32_t i;
836 	int32_t rc = 0;
837 
838 	for (i = 0; (ocs = ocs_get_instance(i)) != NULL; i++) {
839 		if (alloc_flag && (!ocs_textbuf_initialized(&ocs->ddump_saved))) {
840 			rc = ocs_textbuf_alloc(ocs, &ocs->ddump_saved, DEFAULT_SAVED_DUMP_SIZE);
841 			if (rc) {
842 				break;
843 			}
844 		}
845 
846 		rc = ocs_save_ddump(ocs, flags, qentries);
847 		if (rc < 0) {
848 			break;
849 		}
850 	}
851 	return rc;
852 }
853 
854 /**
855  * @brief Clear saved ddump
856  *
857  * Clears saved ddump to make room for next one.
858  *
859  * @param ocs pointer to device context
860  *
861  * @return 0 if ddump was cleared; > 0 no saved ddump found
862  */
863 
864 int32_t
865 ocs_clear_saved_ddump(ocs_t *ocs)
866 {
867 	/* if there's a saved ddump, copy to newly allocated textbuf */
868 	if (ocs_textbuf_get_written(&ocs->ddump_saved)) {
869 		ocs_log_debug(ocs, "saved ddump cleared\n");
870 		ocs_textbuf_reset(&ocs->ddump_saved);
871 		return 0;
872 	} else {
873 		ocs_log_debug(ocs, "no saved ddump found\n");
874 		return 1;
875 	}
876 }
877