xref: /linux/drivers/scsi/qla2xxx/qla_bsg.c (revision 44f57d78)
1 /*
2  * QLogic Fibre Channel HBA Driver
3  * Copyright (c)  2003-2014 QLogic Corporation
4  *
5  * See LICENSE.qla2xxx for copyright and licensing details.
6  */
7 #include "qla_def.h"
8 
9 #include <linux/kthread.h>
10 #include <linux/vmalloc.h>
11 #include <linux/delay.h>
12 #include <linux/bsg-lib.h>
13 
14 /* BSG support for ELS/CT pass through */
15 void
16 qla2x00_bsg_job_done(void *ptr, int res)
17 {
18 	srb_t *sp = ptr;
19 	struct bsg_job *bsg_job = sp->u.bsg_job;
20 	struct fc_bsg_reply *bsg_reply = bsg_job->reply;
21 
22 	bsg_reply->result = res;
23 	bsg_job_done(bsg_job, bsg_reply->result,
24 		       bsg_reply->reply_payload_rcv_len);
25 	sp->free(sp);
26 }
27 
28 void
29 qla2x00_bsg_sp_free(void *ptr)
30 {
31 	srb_t *sp = ptr;
32 	struct qla_hw_data *ha = sp->vha->hw;
33 	struct bsg_job *bsg_job = sp->u.bsg_job;
34 	struct fc_bsg_request *bsg_request = bsg_job->request;
35 	struct qla_mt_iocb_rqst_fx00 *piocb_rqst;
36 
37 	if (sp->type == SRB_FXIOCB_BCMD) {
38 		piocb_rqst = (struct qla_mt_iocb_rqst_fx00 *)
39 		    &bsg_request->rqst_data.h_vendor.vendor_cmd[1];
40 
41 		if (piocb_rqst->flags & SRB_FXDISC_REQ_DMA_VALID)
42 			dma_unmap_sg(&ha->pdev->dev,
43 			    bsg_job->request_payload.sg_list,
44 			    bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
45 
46 		if (piocb_rqst->flags & SRB_FXDISC_RESP_DMA_VALID)
47 			dma_unmap_sg(&ha->pdev->dev,
48 			    bsg_job->reply_payload.sg_list,
49 			    bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
50 	} else {
51 		dma_unmap_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list,
52 		    bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
53 
54 		dma_unmap_sg(&ha->pdev->dev, bsg_job->reply_payload.sg_list,
55 		    bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
56 	}
57 
58 	if (sp->type == SRB_CT_CMD ||
59 	    sp->type == SRB_FXIOCB_BCMD ||
60 	    sp->type == SRB_ELS_CMD_HST)
61 		kfree(sp->fcport);
62 	qla2x00_rel_sp(sp);
63 }
64 
65 int
66 qla24xx_fcp_prio_cfg_valid(scsi_qla_host_t *vha,
67 	struct qla_fcp_prio_cfg *pri_cfg, uint8_t flag)
68 {
69 	int i, ret, num_valid;
70 	uint8_t *bcode;
71 	struct qla_fcp_prio_entry *pri_entry;
72 	uint32_t *bcode_val_ptr, bcode_val;
73 
74 	ret = 1;
75 	num_valid = 0;
76 	bcode = (uint8_t *)pri_cfg;
77 	bcode_val_ptr = (uint32_t *)pri_cfg;
78 	bcode_val = (uint32_t)(*bcode_val_ptr);
79 
80 	if (bcode_val == 0xFFFFFFFF) {
81 		/* No FCP Priority config data in flash */
82 		ql_dbg(ql_dbg_user, vha, 0x7051,
83 		    "No FCP Priority config data.\n");
84 		return 0;
85 	}
86 
87 	if (memcmp(bcode, "HQOS", 4)) {
88 		/* Invalid FCP priority data header*/
89 		ql_dbg(ql_dbg_user, vha, 0x7052,
90 		    "Invalid FCP Priority data header. bcode=0x%x.\n",
91 		    bcode_val);
92 		return 0;
93 	}
94 	if (flag != 1)
95 		return ret;
96 
97 	pri_entry = &pri_cfg->entry[0];
98 	for (i = 0; i < pri_cfg->num_entries; i++) {
99 		if (pri_entry->flags & FCP_PRIO_ENTRY_TAG_VALID)
100 			num_valid++;
101 		pri_entry++;
102 	}
103 
104 	if (num_valid == 0) {
105 		/* No valid FCP priority data entries */
106 		ql_dbg(ql_dbg_user, vha, 0x7053,
107 		    "No valid FCP Priority data entries.\n");
108 		ret = 0;
109 	} else {
110 		/* FCP priority data is valid */
111 		ql_dbg(ql_dbg_user, vha, 0x7054,
112 		    "Valid FCP priority data. num entries = %d.\n",
113 		    num_valid);
114 	}
115 
116 	return ret;
117 }
118 
119 static int
120 qla24xx_proc_fcp_prio_cfg_cmd(struct bsg_job *bsg_job)
121 {
122 	struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
123 	struct fc_bsg_request *bsg_request = bsg_job->request;
124 	struct fc_bsg_reply *bsg_reply = bsg_job->reply;
125 	scsi_qla_host_t *vha = shost_priv(host);
126 	struct qla_hw_data *ha = vha->hw;
127 	int ret = 0;
128 	uint32_t len;
129 	uint32_t oper;
130 
131 	if (!(IS_QLA24XX_TYPE(ha) || IS_QLA25XX(ha) || IS_P3P_TYPE(ha))) {
132 		ret = -EINVAL;
133 		goto exit_fcp_prio_cfg;
134 	}
135 
136 	/* Get the sub command */
137 	oper = bsg_request->rqst_data.h_vendor.vendor_cmd[1];
138 
139 	/* Only set config is allowed if config memory is not allocated */
140 	if (!ha->fcp_prio_cfg && (oper != QLFC_FCP_PRIO_SET_CONFIG)) {
141 		ret = -EINVAL;
142 		goto exit_fcp_prio_cfg;
143 	}
144 	switch (oper) {
145 	case QLFC_FCP_PRIO_DISABLE:
146 		if (ha->flags.fcp_prio_enabled) {
147 			ha->flags.fcp_prio_enabled = 0;
148 			ha->fcp_prio_cfg->attributes &=
149 				~FCP_PRIO_ATTR_ENABLE;
150 			qla24xx_update_all_fcp_prio(vha);
151 			bsg_reply->result = DID_OK;
152 		} else {
153 			ret = -EINVAL;
154 			bsg_reply->result = (DID_ERROR << 16);
155 			goto exit_fcp_prio_cfg;
156 		}
157 		break;
158 
159 	case QLFC_FCP_PRIO_ENABLE:
160 		if (!ha->flags.fcp_prio_enabled) {
161 			if (ha->fcp_prio_cfg) {
162 				ha->flags.fcp_prio_enabled = 1;
163 				ha->fcp_prio_cfg->attributes |=
164 				    FCP_PRIO_ATTR_ENABLE;
165 				qla24xx_update_all_fcp_prio(vha);
166 				bsg_reply->result = DID_OK;
167 			} else {
168 				ret = -EINVAL;
169 				bsg_reply->result = (DID_ERROR << 16);
170 				goto exit_fcp_prio_cfg;
171 			}
172 		}
173 		break;
174 
175 	case QLFC_FCP_PRIO_GET_CONFIG:
176 		len = bsg_job->reply_payload.payload_len;
177 		if (!len || len > FCP_PRIO_CFG_SIZE) {
178 			ret = -EINVAL;
179 			bsg_reply->result = (DID_ERROR << 16);
180 			goto exit_fcp_prio_cfg;
181 		}
182 
183 		bsg_reply->result = DID_OK;
184 		bsg_reply->reply_payload_rcv_len =
185 			sg_copy_from_buffer(
186 			bsg_job->reply_payload.sg_list,
187 			bsg_job->reply_payload.sg_cnt, ha->fcp_prio_cfg,
188 			len);
189 
190 		break;
191 
192 	case QLFC_FCP_PRIO_SET_CONFIG:
193 		len = bsg_job->request_payload.payload_len;
194 		if (!len || len > FCP_PRIO_CFG_SIZE) {
195 			bsg_reply->result = (DID_ERROR << 16);
196 			ret = -EINVAL;
197 			goto exit_fcp_prio_cfg;
198 		}
199 
200 		if (!ha->fcp_prio_cfg) {
201 			ha->fcp_prio_cfg = vmalloc(FCP_PRIO_CFG_SIZE);
202 			if (!ha->fcp_prio_cfg) {
203 				ql_log(ql_log_warn, vha, 0x7050,
204 				    "Unable to allocate memory for fcp prio "
205 				    "config data (%x).\n", FCP_PRIO_CFG_SIZE);
206 				bsg_reply->result = (DID_ERROR << 16);
207 				ret = -ENOMEM;
208 				goto exit_fcp_prio_cfg;
209 			}
210 		}
211 
212 		memset(ha->fcp_prio_cfg, 0, FCP_PRIO_CFG_SIZE);
213 		sg_copy_to_buffer(bsg_job->request_payload.sg_list,
214 		bsg_job->request_payload.sg_cnt, ha->fcp_prio_cfg,
215 			FCP_PRIO_CFG_SIZE);
216 
217 		/* validate fcp priority data */
218 
219 		if (!qla24xx_fcp_prio_cfg_valid(vha,
220 		    (struct qla_fcp_prio_cfg *) ha->fcp_prio_cfg, 1)) {
221 			bsg_reply->result = (DID_ERROR << 16);
222 			ret = -EINVAL;
223 			/* If buffer was invalidatic int
224 			 * fcp_prio_cfg is of no use
225 			 */
226 			vfree(ha->fcp_prio_cfg);
227 			ha->fcp_prio_cfg = NULL;
228 			goto exit_fcp_prio_cfg;
229 		}
230 
231 		ha->flags.fcp_prio_enabled = 0;
232 		if (ha->fcp_prio_cfg->attributes & FCP_PRIO_ATTR_ENABLE)
233 			ha->flags.fcp_prio_enabled = 1;
234 		qla24xx_update_all_fcp_prio(vha);
235 		bsg_reply->result = DID_OK;
236 		break;
237 	default:
238 		ret = -EINVAL;
239 		break;
240 	}
241 exit_fcp_prio_cfg:
242 	if (!ret)
243 		bsg_job_done(bsg_job, bsg_reply->result,
244 			       bsg_reply->reply_payload_rcv_len);
245 	return ret;
246 }
247 
248 static int
249 qla2x00_process_els(struct bsg_job *bsg_job)
250 {
251 	struct fc_bsg_request *bsg_request = bsg_job->request;
252 	struct fc_rport *rport;
253 	fc_port_t *fcport = NULL;
254 	struct Scsi_Host *host;
255 	scsi_qla_host_t *vha;
256 	struct qla_hw_data *ha;
257 	srb_t *sp;
258 	const char *type;
259 	int req_sg_cnt, rsp_sg_cnt;
260 	int rval =  (DRIVER_ERROR << 16);
261 	uint16_t nextlid = 0;
262 
263 	if (bsg_request->msgcode == FC_BSG_RPT_ELS) {
264 		rport = fc_bsg_to_rport(bsg_job);
265 		fcport = *(fc_port_t **) rport->dd_data;
266 		host = rport_to_shost(rport);
267 		vha = shost_priv(host);
268 		ha = vha->hw;
269 		type = "FC_BSG_RPT_ELS";
270 	} else {
271 		host = fc_bsg_to_shost(bsg_job);
272 		vha = shost_priv(host);
273 		ha = vha->hw;
274 		type = "FC_BSG_HST_ELS_NOLOGIN";
275 	}
276 
277 	if (!vha->flags.online) {
278 		ql_log(ql_log_warn, vha, 0x7005, "Host not online.\n");
279 		rval = -EIO;
280 		goto done;
281 	}
282 
283 	/* pass through is supported only for ISP 4Gb or higher */
284 	if (!IS_FWI2_CAPABLE(ha)) {
285 		ql_dbg(ql_dbg_user, vha, 0x7001,
286 		    "ELS passthru not supported for ISP23xx based adapters.\n");
287 		rval = -EPERM;
288 		goto done;
289 	}
290 
291 	/*  Multiple SG's are not supported for ELS requests */
292 	if (bsg_job->request_payload.sg_cnt > 1 ||
293 		bsg_job->reply_payload.sg_cnt > 1) {
294 		ql_dbg(ql_dbg_user, vha, 0x7002,
295 		    "Multiple SG's are not supported for ELS requests, "
296 		    "request_sg_cnt=%x reply_sg_cnt=%x.\n",
297 		    bsg_job->request_payload.sg_cnt,
298 		    bsg_job->reply_payload.sg_cnt);
299 		rval = -EPERM;
300 		goto done;
301 	}
302 
303 	/* ELS request for rport */
304 	if (bsg_request->msgcode == FC_BSG_RPT_ELS) {
305 		/* make sure the rport is logged in,
306 		 * if not perform fabric login
307 		 */
308 		if (qla2x00_fabric_login(vha, fcport, &nextlid)) {
309 			ql_dbg(ql_dbg_user, vha, 0x7003,
310 			    "Failed to login port %06X for ELS passthru.\n",
311 			    fcport->d_id.b24);
312 			rval = -EIO;
313 			goto done;
314 		}
315 	} else {
316 		/* Allocate a dummy fcport structure, since functions
317 		 * preparing the IOCB and mailbox command retrieves port
318 		 * specific information from fcport structure. For Host based
319 		 * ELS commands there will be no fcport structure allocated
320 		 */
321 		fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
322 		if (!fcport) {
323 			rval = -ENOMEM;
324 			goto done;
325 		}
326 
327 		/* Initialize all required  fields of fcport */
328 		fcport->vha = vha;
329 		fcport->d_id.b.al_pa =
330 			bsg_request->rqst_data.h_els.port_id[0];
331 		fcport->d_id.b.area =
332 			bsg_request->rqst_data.h_els.port_id[1];
333 		fcport->d_id.b.domain =
334 			bsg_request->rqst_data.h_els.port_id[2];
335 		fcport->loop_id =
336 			(fcport->d_id.b.al_pa == 0xFD) ?
337 			NPH_FABRIC_CONTROLLER : NPH_F_PORT;
338 	}
339 
340 	req_sg_cnt =
341 		dma_map_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list,
342 		bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
343 	if (!req_sg_cnt) {
344 		rval = -ENOMEM;
345 		goto done_free_fcport;
346 	}
347 
348 	rsp_sg_cnt = dma_map_sg(&ha->pdev->dev, bsg_job->reply_payload.sg_list,
349 		bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
350         if (!rsp_sg_cnt) {
351 		rval = -ENOMEM;
352 		goto done_free_fcport;
353 	}
354 
355 	if ((req_sg_cnt !=  bsg_job->request_payload.sg_cnt) ||
356 		(rsp_sg_cnt != bsg_job->reply_payload.sg_cnt)) {
357 		ql_log(ql_log_warn, vha, 0x7008,
358 		    "dma mapping resulted in different sg counts, "
359 		    "request_sg_cnt: %x dma_request_sg_cnt:%x reply_sg_cnt:%x "
360 		    "dma_reply_sg_cnt:%x.\n", bsg_job->request_payload.sg_cnt,
361 		    req_sg_cnt, bsg_job->reply_payload.sg_cnt, rsp_sg_cnt);
362 		rval = -EAGAIN;
363 		goto done_unmap_sg;
364 	}
365 
366 	/* Alloc SRB structure */
367 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
368 	if (!sp) {
369 		rval = -ENOMEM;
370 		goto done_unmap_sg;
371 	}
372 
373 	sp->type =
374 		(bsg_request->msgcode == FC_BSG_RPT_ELS ?
375 		 SRB_ELS_CMD_RPT : SRB_ELS_CMD_HST);
376 	sp->name =
377 		(bsg_request->msgcode == FC_BSG_RPT_ELS ?
378 		 "bsg_els_rpt" : "bsg_els_hst");
379 	sp->u.bsg_job = bsg_job;
380 	sp->free = qla2x00_bsg_sp_free;
381 	sp->done = qla2x00_bsg_job_done;
382 
383 	ql_dbg(ql_dbg_user, vha, 0x700a,
384 	    "bsg rqst type: %s els type: %x - loop-id=%x "
385 	    "portid=%-2x%02x%02x.\n", type,
386 	    bsg_request->rqst_data.h_els.command_code, fcport->loop_id,
387 	    fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa);
388 
389 	rval = qla2x00_start_sp(sp);
390 	if (rval != QLA_SUCCESS) {
391 		ql_log(ql_log_warn, vha, 0x700e,
392 		    "qla2x00_start_sp failed = %d\n", rval);
393 		qla2x00_rel_sp(sp);
394 		rval = -EIO;
395 		goto done_unmap_sg;
396 	}
397 	return rval;
398 
399 done_unmap_sg:
400 	dma_unmap_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list,
401 		bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
402 	dma_unmap_sg(&ha->pdev->dev, bsg_job->reply_payload.sg_list,
403 		bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
404 	goto done_free_fcport;
405 
406 done_free_fcport:
407 	if (bsg_request->msgcode == FC_BSG_RPT_ELS)
408 		kfree(fcport);
409 done:
410 	return rval;
411 }
412 
413 static inline uint16_t
414 qla24xx_calc_ct_iocbs(uint16_t dsds)
415 {
416 	uint16_t iocbs;
417 
418 	iocbs = 1;
419 	if (dsds > 2) {
420 		iocbs += (dsds - 2) / 5;
421 		if ((dsds - 2) % 5)
422 			iocbs++;
423 	}
424 	return iocbs;
425 }
426 
427 static int
428 qla2x00_process_ct(struct bsg_job *bsg_job)
429 {
430 	srb_t *sp;
431 	struct fc_bsg_request *bsg_request = bsg_job->request;
432 	struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
433 	scsi_qla_host_t *vha = shost_priv(host);
434 	struct qla_hw_data *ha = vha->hw;
435 	int rval = (DRIVER_ERROR << 16);
436 	int req_sg_cnt, rsp_sg_cnt;
437 	uint16_t loop_id;
438 	struct fc_port *fcport;
439 	char  *type = "FC_BSG_HST_CT";
440 
441 	req_sg_cnt =
442 		dma_map_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list,
443 			bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
444 	if (!req_sg_cnt) {
445 		ql_log(ql_log_warn, vha, 0x700f,
446 		    "dma_map_sg return %d for request\n", req_sg_cnt);
447 		rval = -ENOMEM;
448 		goto done;
449 	}
450 
451 	rsp_sg_cnt = dma_map_sg(&ha->pdev->dev, bsg_job->reply_payload.sg_list,
452 		bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
453 	if (!rsp_sg_cnt) {
454 		ql_log(ql_log_warn, vha, 0x7010,
455 		    "dma_map_sg return %d for reply\n", rsp_sg_cnt);
456 		rval = -ENOMEM;
457 		goto done;
458 	}
459 
460 	if ((req_sg_cnt !=  bsg_job->request_payload.sg_cnt) ||
461 	    (rsp_sg_cnt != bsg_job->reply_payload.sg_cnt)) {
462 		ql_log(ql_log_warn, vha, 0x7011,
463 		    "request_sg_cnt: %x dma_request_sg_cnt: %x reply_sg_cnt:%x "
464 		    "dma_reply_sg_cnt: %x\n", bsg_job->request_payload.sg_cnt,
465 		    req_sg_cnt, bsg_job->reply_payload.sg_cnt, rsp_sg_cnt);
466 		rval = -EAGAIN;
467 		goto done_unmap_sg;
468 	}
469 
470 	if (!vha->flags.online) {
471 		ql_log(ql_log_warn, vha, 0x7012,
472 		    "Host is not online.\n");
473 		rval = -EIO;
474 		goto done_unmap_sg;
475 	}
476 
477 	loop_id =
478 		(bsg_request->rqst_data.h_ct.preamble_word1 & 0xFF000000)
479 			>> 24;
480 	switch (loop_id) {
481 	case 0xFC:
482 		loop_id = cpu_to_le16(NPH_SNS);
483 		break;
484 	case 0xFA:
485 		loop_id = vha->mgmt_svr_loop_id;
486 		break;
487 	default:
488 		ql_dbg(ql_dbg_user, vha, 0x7013,
489 		    "Unknown loop id: %x.\n", loop_id);
490 		rval = -EINVAL;
491 		goto done_unmap_sg;
492 	}
493 
494 	/* Allocate a dummy fcport structure, since functions preparing the
495 	 * IOCB and mailbox command retrieves port specific information
496 	 * from fcport structure. For Host based ELS commands there will be
497 	 * no fcport structure allocated
498 	 */
499 	fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
500 	if (!fcport) {
501 		ql_log(ql_log_warn, vha, 0x7014,
502 		    "Failed to allocate fcport.\n");
503 		rval = -ENOMEM;
504 		goto done_unmap_sg;
505 	}
506 
507 	/* Initialize all required  fields of fcport */
508 	fcport->vha = vha;
509 	fcport->d_id.b.al_pa = bsg_request->rqst_data.h_ct.port_id[0];
510 	fcport->d_id.b.area = bsg_request->rqst_data.h_ct.port_id[1];
511 	fcport->d_id.b.domain = bsg_request->rqst_data.h_ct.port_id[2];
512 	fcport->loop_id = loop_id;
513 
514 	/* Alloc SRB structure */
515 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
516 	if (!sp) {
517 		ql_log(ql_log_warn, vha, 0x7015,
518 		    "qla2x00_get_sp failed.\n");
519 		rval = -ENOMEM;
520 		goto done_free_fcport;
521 	}
522 
523 	sp->type = SRB_CT_CMD;
524 	sp->name = "bsg_ct";
525 	sp->iocbs = qla24xx_calc_ct_iocbs(req_sg_cnt + rsp_sg_cnt);
526 	sp->u.bsg_job = bsg_job;
527 	sp->free = qla2x00_bsg_sp_free;
528 	sp->done = qla2x00_bsg_job_done;
529 
530 	ql_dbg(ql_dbg_user, vha, 0x7016,
531 	    "bsg rqst type: %s else type: %x - "
532 	    "loop-id=%x portid=%02x%02x%02x.\n", type,
533 	    (bsg_request->rqst_data.h_ct.preamble_word2 >> 16),
534 	    fcport->loop_id, fcport->d_id.b.domain, fcport->d_id.b.area,
535 	    fcport->d_id.b.al_pa);
536 
537 	rval = qla2x00_start_sp(sp);
538 	if (rval != QLA_SUCCESS) {
539 		ql_log(ql_log_warn, vha, 0x7017,
540 		    "qla2x00_start_sp failed=%d.\n", rval);
541 		qla2x00_rel_sp(sp);
542 		rval = -EIO;
543 		goto done_free_fcport;
544 	}
545 	return rval;
546 
547 done_free_fcport:
548 	kfree(fcport);
549 done_unmap_sg:
550 	dma_unmap_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list,
551 		bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
552 	dma_unmap_sg(&ha->pdev->dev, bsg_job->reply_payload.sg_list,
553 		bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
554 done:
555 	return rval;
556 }
557 
558 /* Disable loopback mode */
559 static inline int
560 qla81xx_reset_loopback_mode(scsi_qla_host_t *vha, uint16_t *config,
561 			    int wait, int wait2)
562 {
563 	int ret = 0;
564 	int rval = 0;
565 	uint16_t new_config[4];
566 	struct qla_hw_data *ha = vha->hw;
567 
568 	if (!IS_QLA81XX(ha) && !IS_QLA8031(ha) && !IS_QLA8044(ha))
569 		goto done_reset_internal;
570 
571 	memset(new_config, 0 , sizeof(new_config));
572 	if ((config[0] & INTERNAL_LOOPBACK_MASK) >> 1 ==
573 	    ENABLE_INTERNAL_LOOPBACK ||
574 	    (config[0] & INTERNAL_LOOPBACK_MASK) >> 1 ==
575 	    ENABLE_EXTERNAL_LOOPBACK) {
576 		new_config[0] = config[0] & ~INTERNAL_LOOPBACK_MASK;
577 		ql_dbg(ql_dbg_user, vha, 0x70bf, "new_config[0]=%02x\n",
578 		    (new_config[0] & INTERNAL_LOOPBACK_MASK));
579 		memcpy(&new_config[1], &config[1], sizeof(uint16_t) * 3) ;
580 
581 		ha->notify_dcbx_comp = wait;
582 		ha->notify_lb_portup_comp = wait2;
583 
584 		ret = qla81xx_set_port_config(vha, new_config);
585 		if (ret != QLA_SUCCESS) {
586 			ql_log(ql_log_warn, vha, 0x7025,
587 			    "Set port config failed.\n");
588 			ha->notify_dcbx_comp = 0;
589 			ha->notify_lb_portup_comp = 0;
590 			rval = -EINVAL;
591 			goto done_reset_internal;
592 		}
593 
594 		/* Wait for DCBX complete event */
595 		if (wait && !wait_for_completion_timeout(&ha->dcbx_comp,
596 			(DCBX_COMP_TIMEOUT * HZ))) {
597 			ql_dbg(ql_dbg_user, vha, 0x7026,
598 			    "DCBX completion not received.\n");
599 			ha->notify_dcbx_comp = 0;
600 			ha->notify_lb_portup_comp = 0;
601 			rval = -EINVAL;
602 			goto done_reset_internal;
603 		} else
604 			ql_dbg(ql_dbg_user, vha, 0x7027,
605 			    "DCBX completion received.\n");
606 
607 		if (wait2 &&
608 		    !wait_for_completion_timeout(&ha->lb_portup_comp,
609 		    (LB_PORTUP_COMP_TIMEOUT * HZ))) {
610 			ql_dbg(ql_dbg_user, vha, 0x70c5,
611 			    "Port up completion not received.\n");
612 			ha->notify_lb_portup_comp = 0;
613 			rval = -EINVAL;
614 			goto done_reset_internal;
615 		} else
616 			ql_dbg(ql_dbg_user, vha, 0x70c6,
617 			    "Port up completion received.\n");
618 
619 		ha->notify_dcbx_comp = 0;
620 		ha->notify_lb_portup_comp = 0;
621 	}
622 done_reset_internal:
623 	return rval;
624 }
625 
626 /*
627  * Set the port configuration to enable the internal or external loopback
628  * depending on the loopback mode.
629  */
630 static inline int
631 qla81xx_set_loopback_mode(scsi_qla_host_t *vha, uint16_t *config,
632 	uint16_t *new_config, uint16_t mode)
633 {
634 	int ret = 0;
635 	int rval = 0;
636 	unsigned long rem_tmo = 0, current_tmo = 0;
637 	struct qla_hw_data *ha = vha->hw;
638 
639 	if (!IS_QLA81XX(ha) && !IS_QLA8031(ha) && !IS_QLA8044(ha))
640 		goto done_set_internal;
641 
642 	if (mode == INTERNAL_LOOPBACK)
643 		new_config[0] = config[0] | (ENABLE_INTERNAL_LOOPBACK << 1);
644 	else if (mode == EXTERNAL_LOOPBACK)
645 		new_config[0] = config[0] | (ENABLE_EXTERNAL_LOOPBACK << 1);
646 	ql_dbg(ql_dbg_user, vha, 0x70be,
647 	     "new_config[0]=%02x\n", (new_config[0] & INTERNAL_LOOPBACK_MASK));
648 
649 	memcpy(&new_config[1], &config[1], sizeof(uint16_t) * 3);
650 
651 	ha->notify_dcbx_comp = 1;
652 	ret = qla81xx_set_port_config(vha, new_config);
653 	if (ret != QLA_SUCCESS) {
654 		ql_log(ql_log_warn, vha, 0x7021,
655 		    "set port config failed.\n");
656 		ha->notify_dcbx_comp = 0;
657 		rval = -EINVAL;
658 		goto done_set_internal;
659 	}
660 
661 	/* Wait for DCBX complete event */
662 	current_tmo = DCBX_COMP_TIMEOUT * HZ;
663 	while (1) {
664 		rem_tmo = wait_for_completion_timeout(&ha->dcbx_comp,
665 		    current_tmo);
666 		if (!ha->idc_extend_tmo || rem_tmo) {
667 			ha->idc_extend_tmo = 0;
668 			break;
669 		}
670 		current_tmo = ha->idc_extend_tmo * HZ;
671 		ha->idc_extend_tmo = 0;
672 	}
673 
674 	if (!rem_tmo) {
675 		ql_dbg(ql_dbg_user, vha, 0x7022,
676 		    "DCBX completion not received.\n");
677 		ret = qla81xx_reset_loopback_mode(vha, new_config, 0, 0);
678 		/*
679 		 * If the reset of the loopback mode doesn't work take a FCoE
680 		 * dump and reset the chip.
681 		 */
682 		if (ret) {
683 			ha->isp_ops->fw_dump(vha, 0);
684 			set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
685 		}
686 		rval = -EINVAL;
687 	} else {
688 		if (ha->flags.idc_compl_status) {
689 			ql_dbg(ql_dbg_user, vha, 0x70c3,
690 			    "Bad status in IDC Completion AEN\n");
691 			rval = -EINVAL;
692 			ha->flags.idc_compl_status = 0;
693 		} else
694 			ql_dbg(ql_dbg_user, vha, 0x7023,
695 			    "DCBX completion received.\n");
696 	}
697 
698 	ha->notify_dcbx_comp = 0;
699 	ha->idc_extend_tmo = 0;
700 
701 done_set_internal:
702 	return rval;
703 }
704 
705 static int
706 qla2x00_process_loopback(struct bsg_job *bsg_job)
707 {
708 	struct fc_bsg_request *bsg_request = bsg_job->request;
709 	struct fc_bsg_reply *bsg_reply = bsg_job->reply;
710 	struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
711 	scsi_qla_host_t *vha = shost_priv(host);
712 	struct qla_hw_data *ha = vha->hw;
713 	int rval;
714 	uint8_t command_sent;
715 	char *type;
716 	struct msg_echo_lb elreq;
717 	uint16_t response[MAILBOX_REGISTER_COUNT];
718 	uint16_t config[4], new_config[4];
719 	uint8_t *fw_sts_ptr;
720 	uint8_t *req_data = NULL;
721 	dma_addr_t req_data_dma;
722 	uint32_t req_data_len;
723 	uint8_t *rsp_data = NULL;
724 	dma_addr_t rsp_data_dma;
725 	uint32_t rsp_data_len;
726 
727 	if (!vha->flags.online) {
728 		ql_log(ql_log_warn, vha, 0x7019, "Host is not online.\n");
729 		return -EIO;
730 	}
731 
732 	memset(&elreq, 0, sizeof(elreq));
733 
734 	elreq.req_sg_cnt = dma_map_sg(&ha->pdev->dev,
735 		bsg_job->request_payload.sg_list, bsg_job->request_payload.sg_cnt,
736 		DMA_TO_DEVICE);
737 
738 	if (!elreq.req_sg_cnt) {
739 		ql_log(ql_log_warn, vha, 0x701a,
740 		    "dma_map_sg returned %d for request.\n", elreq.req_sg_cnt);
741 		return -ENOMEM;
742 	}
743 
744 	elreq.rsp_sg_cnt = dma_map_sg(&ha->pdev->dev,
745 		bsg_job->reply_payload.sg_list, bsg_job->reply_payload.sg_cnt,
746 		DMA_FROM_DEVICE);
747 
748 	if (!elreq.rsp_sg_cnt) {
749 		ql_log(ql_log_warn, vha, 0x701b,
750 		    "dma_map_sg returned %d for reply.\n", elreq.rsp_sg_cnt);
751 		rval = -ENOMEM;
752 		goto done_unmap_req_sg;
753 	}
754 
755 	if ((elreq.req_sg_cnt !=  bsg_job->request_payload.sg_cnt) ||
756 		(elreq.rsp_sg_cnt != bsg_job->reply_payload.sg_cnt)) {
757 		ql_log(ql_log_warn, vha, 0x701c,
758 		    "dma mapping resulted in different sg counts, "
759 		    "request_sg_cnt: %x dma_request_sg_cnt: %x "
760 		    "reply_sg_cnt: %x dma_reply_sg_cnt: %x.\n",
761 		    bsg_job->request_payload.sg_cnt, elreq.req_sg_cnt,
762 		    bsg_job->reply_payload.sg_cnt, elreq.rsp_sg_cnt);
763 		rval = -EAGAIN;
764 		goto done_unmap_sg;
765 	}
766 	req_data_len = rsp_data_len = bsg_job->request_payload.payload_len;
767 	req_data = dma_alloc_coherent(&ha->pdev->dev, req_data_len,
768 		&req_data_dma, GFP_KERNEL);
769 	if (!req_data) {
770 		ql_log(ql_log_warn, vha, 0x701d,
771 		    "dma alloc failed for req_data.\n");
772 		rval = -ENOMEM;
773 		goto done_unmap_sg;
774 	}
775 
776 	rsp_data = dma_alloc_coherent(&ha->pdev->dev, rsp_data_len,
777 		&rsp_data_dma, GFP_KERNEL);
778 	if (!rsp_data) {
779 		ql_log(ql_log_warn, vha, 0x7004,
780 		    "dma alloc failed for rsp_data.\n");
781 		rval = -ENOMEM;
782 		goto done_free_dma_req;
783 	}
784 
785 	/* Copy the request buffer in req_data now */
786 	sg_copy_to_buffer(bsg_job->request_payload.sg_list,
787 		bsg_job->request_payload.sg_cnt, req_data, req_data_len);
788 
789 	elreq.send_dma = req_data_dma;
790 	elreq.rcv_dma = rsp_data_dma;
791 	elreq.transfer_size = req_data_len;
792 
793 	elreq.options = bsg_request->rqst_data.h_vendor.vendor_cmd[1];
794 	elreq.iteration_count =
795 	    bsg_request->rqst_data.h_vendor.vendor_cmd[2];
796 
797 	if (atomic_read(&vha->loop_state) == LOOP_READY &&
798 	    (ha->current_topology == ISP_CFG_F ||
799 	    (le32_to_cpu(*(uint32_t *)req_data) == ELS_OPCODE_BYTE &&
800 	     req_data_len == MAX_ELS_FRAME_PAYLOAD)) &&
801 	    elreq.options == EXTERNAL_LOOPBACK) {
802 		type = "FC_BSG_HST_VENDOR_ECHO_DIAG";
803 		ql_dbg(ql_dbg_user, vha, 0x701e,
804 		    "BSG request type: %s.\n", type);
805 		command_sent = INT_DEF_LB_ECHO_CMD;
806 		rval = qla2x00_echo_test(vha, &elreq, response);
807 	} else {
808 		if (IS_QLA81XX(ha) || IS_QLA8031(ha) || IS_QLA8044(ha)) {
809 			memset(config, 0, sizeof(config));
810 			memset(new_config, 0, sizeof(new_config));
811 
812 			if (qla81xx_get_port_config(vha, config)) {
813 				ql_log(ql_log_warn, vha, 0x701f,
814 				    "Get port config failed.\n");
815 				rval = -EPERM;
816 				goto done_free_dma_rsp;
817 			}
818 
819 			if ((config[0] & INTERNAL_LOOPBACK_MASK) != 0) {
820 				ql_dbg(ql_dbg_user, vha, 0x70c4,
821 				    "Loopback operation already in "
822 				    "progress.\n");
823 				rval = -EAGAIN;
824 				goto done_free_dma_rsp;
825 			}
826 
827 			ql_dbg(ql_dbg_user, vha, 0x70c0,
828 			    "elreq.options=%04x\n", elreq.options);
829 
830 			if (elreq.options == EXTERNAL_LOOPBACK)
831 				if (IS_QLA8031(ha) || IS_QLA8044(ha))
832 					rval = qla81xx_set_loopback_mode(vha,
833 					    config, new_config, elreq.options);
834 				else
835 					rval = qla81xx_reset_loopback_mode(vha,
836 					    config, 1, 0);
837 			else
838 				rval = qla81xx_set_loopback_mode(vha, config,
839 				    new_config, elreq.options);
840 
841 			if (rval) {
842 				rval = -EPERM;
843 				goto done_free_dma_rsp;
844 			}
845 
846 			type = "FC_BSG_HST_VENDOR_LOOPBACK";
847 			ql_dbg(ql_dbg_user, vha, 0x7028,
848 			    "BSG request type: %s.\n", type);
849 
850 			command_sent = INT_DEF_LB_LOOPBACK_CMD;
851 			rval = qla2x00_loopback_test(vha, &elreq, response);
852 
853 			if (response[0] == MBS_COMMAND_ERROR &&
854 					response[1] == MBS_LB_RESET) {
855 				ql_log(ql_log_warn, vha, 0x7029,
856 				    "MBX command error, Aborting ISP.\n");
857 				set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
858 				qla2xxx_wake_dpc(vha);
859 				qla2x00_wait_for_chip_reset(vha);
860 				/* Also reset the MPI */
861 				if (IS_QLA81XX(ha)) {
862 					if (qla81xx_restart_mpi_firmware(vha) !=
863 					    QLA_SUCCESS) {
864 						ql_log(ql_log_warn, vha, 0x702a,
865 						    "MPI reset failed.\n");
866 					}
867 				}
868 
869 				rval = -EIO;
870 				goto done_free_dma_rsp;
871 			}
872 
873 			if (new_config[0]) {
874 				int ret;
875 
876 				/* Revert back to original port config
877 				 * Also clear internal loopback
878 				 */
879 				ret = qla81xx_reset_loopback_mode(vha,
880 				    new_config, 0, 1);
881 				if (ret) {
882 					/*
883 					 * If the reset of the loopback mode
884 					 * doesn't work take FCoE dump and then
885 					 * reset the chip.
886 					 */
887 					ha->isp_ops->fw_dump(vha, 0);
888 					set_bit(ISP_ABORT_NEEDED,
889 					    &vha->dpc_flags);
890 				}
891 
892 			}
893 
894 		} else {
895 			type = "FC_BSG_HST_VENDOR_LOOPBACK";
896 			ql_dbg(ql_dbg_user, vha, 0x702b,
897 			    "BSG request type: %s.\n", type);
898 			command_sent = INT_DEF_LB_LOOPBACK_CMD;
899 			rval = qla2x00_loopback_test(vha, &elreq, response);
900 		}
901 	}
902 
903 	if (rval) {
904 		ql_log(ql_log_warn, vha, 0x702c,
905 		    "Vendor request %s failed.\n", type);
906 
907 		rval = 0;
908 		bsg_reply->result = (DID_ERROR << 16);
909 		bsg_reply->reply_payload_rcv_len = 0;
910 	} else {
911 		ql_dbg(ql_dbg_user, vha, 0x702d,
912 		    "Vendor request %s completed.\n", type);
913 		bsg_reply->result = (DID_OK << 16);
914 		sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
915 			bsg_job->reply_payload.sg_cnt, rsp_data,
916 			rsp_data_len);
917 	}
918 
919 	bsg_job->reply_len = sizeof(struct fc_bsg_reply) +
920 	    sizeof(response) + sizeof(uint8_t);
921 	fw_sts_ptr = bsg_job->reply + sizeof(struct fc_bsg_reply);
922 	memcpy(bsg_job->reply + sizeof(struct fc_bsg_reply), response,
923 			sizeof(response));
924 	fw_sts_ptr += sizeof(response);
925 	*fw_sts_ptr = command_sent;
926 
927 done_free_dma_rsp:
928 	dma_free_coherent(&ha->pdev->dev, rsp_data_len,
929 		rsp_data, rsp_data_dma);
930 done_free_dma_req:
931 	dma_free_coherent(&ha->pdev->dev, req_data_len,
932 		req_data, req_data_dma);
933 done_unmap_sg:
934 	dma_unmap_sg(&ha->pdev->dev,
935 	    bsg_job->reply_payload.sg_list,
936 	    bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
937 done_unmap_req_sg:
938 	dma_unmap_sg(&ha->pdev->dev,
939 	    bsg_job->request_payload.sg_list,
940 	    bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
941 	if (!rval)
942 		bsg_job_done(bsg_job, bsg_reply->result,
943 			       bsg_reply->reply_payload_rcv_len);
944 	return rval;
945 }
946 
947 static int
948 qla84xx_reset(struct bsg_job *bsg_job)
949 {
950 	struct fc_bsg_request *bsg_request = bsg_job->request;
951 	struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
952 	struct fc_bsg_reply *bsg_reply = bsg_job->reply;
953 	scsi_qla_host_t *vha = shost_priv(host);
954 	struct qla_hw_data *ha = vha->hw;
955 	int rval = 0;
956 	uint32_t flag;
957 
958 	if (!IS_QLA84XX(ha)) {
959 		ql_dbg(ql_dbg_user, vha, 0x702f, "Not 84xx, exiting.\n");
960 		return -EINVAL;
961 	}
962 
963 	flag = bsg_request->rqst_data.h_vendor.vendor_cmd[1];
964 
965 	rval = qla84xx_reset_chip(vha, flag == A84_ISSUE_RESET_DIAG_FW);
966 
967 	if (rval) {
968 		ql_log(ql_log_warn, vha, 0x7030,
969 		    "Vendor request 84xx reset failed.\n");
970 		rval = (DID_ERROR << 16);
971 
972 	} else {
973 		ql_dbg(ql_dbg_user, vha, 0x7031,
974 		    "Vendor request 84xx reset completed.\n");
975 		bsg_reply->result = DID_OK;
976 		bsg_job_done(bsg_job, bsg_reply->result,
977 			       bsg_reply->reply_payload_rcv_len);
978 	}
979 
980 	return rval;
981 }
982 
983 static int
984 qla84xx_updatefw(struct bsg_job *bsg_job)
985 {
986 	struct fc_bsg_request *bsg_request = bsg_job->request;
987 	struct fc_bsg_reply *bsg_reply = bsg_job->reply;
988 	struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
989 	scsi_qla_host_t *vha = shost_priv(host);
990 	struct qla_hw_data *ha = vha->hw;
991 	struct verify_chip_entry_84xx *mn = NULL;
992 	dma_addr_t mn_dma, fw_dma;
993 	void *fw_buf = NULL;
994 	int rval = 0;
995 	uint32_t sg_cnt;
996 	uint32_t data_len;
997 	uint16_t options;
998 	uint32_t flag;
999 	uint32_t fw_ver;
1000 
1001 	if (!IS_QLA84XX(ha)) {
1002 		ql_dbg(ql_dbg_user, vha, 0x7032,
1003 		    "Not 84xx, exiting.\n");
1004 		return -EINVAL;
1005 	}
1006 
1007 	sg_cnt = dma_map_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list,
1008 		bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
1009 	if (!sg_cnt) {
1010 		ql_log(ql_log_warn, vha, 0x7033,
1011 		    "dma_map_sg returned %d for request.\n", sg_cnt);
1012 		return -ENOMEM;
1013 	}
1014 
1015 	if (sg_cnt != bsg_job->request_payload.sg_cnt) {
1016 		ql_log(ql_log_warn, vha, 0x7034,
1017 		    "DMA mapping resulted in different sg counts, "
1018 		    "request_sg_cnt: %x dma_request_sg_cnt: %x.\n",
1019 		    bsg_job->request_payload.sg_cnt, sg_cnt);
1020 		rval = -EAGAIN;
1021 		goto done_unmap_sg;
1022 	}
1023 
1024 	data_len = bsg_job->request_payload.payload_len;
1025 	fw_buf = dma_alloc_coherent(&ha->pdev->dev, data_len,
1026 		&fw_dma, GFP_KERNEL);
1027 	if (!fw_buf) {
1028 		ql_log(ql_log_warn, vha, 0x7035,
1029 		    "DMA alloc failed for fw_buf.\n");
1030 		rval = -ENOMEM;
1031 		goto done_unmap_sg;
1032 	}
1033 
1034 	sg_copy_to_buffer(bsg_job->request_payload.sg_list,
1035 		bsg_job->request_payload.sg_cnt, fw_buf, data_len);
1036 
1037 	mn = dma_pool_zalloc(ha->s_dma_pool, GFP_KERNEL, &mn_dma);
1038 	if (!mn) {
1039 		ql_log(ql_log_warn, vha, 0x7036,
1040 		    "DMA alloc failed for fw buffer.\n");
1041 		rval = -ENOMEM;
1042 		goto done_free_fw_buf;
1043 	}
1044 
1045 	flag = bsg_request->rqst_data.h_vendor.vendor_cmd[1];
1046 	fw_ver = get_unaligned_le32((uint32_t *)fw_buf + 2);
1047 
1048 	mn->entry_type = VERIFY_CHIP_IOCB_TYPE;
1049 	mn->entry_count = 1;
1050 
1051 	options = VCO_FORCE_UPDATE | VCO_END_OF_DATA;
1052 	if (flag == A84_ISSUE_UPDATE_DIAGFW_CMD)
1053 		options |= VCO_DIAG_FW;
1054 
1055 	mn->options = cpu_to_le16(options);
1056 	mn->fw_ver =  cpu_to_le32(fw_ver);
1057 	mn->fw_size =  cpu_to_le32(data_len);
1058 	mn->fw_seq_size =  cpu_to_le32(data_len);
1059 	put_unaligned_le64(fw_dma, &mn->dsd.address);
1060 	mn->dsd.length = cpu_to_le32(data_len);
1061 	mn->data_seg_cnt = cpu_to_le16(1);
1062 
1063 	rval = qla2x00_issue_iocb_timeout(vha, mn, mn_dma, 0, 120);
1064 
1065 	if (rval) {
1066 		ql_log(ql_log_warn, vha, 0x7037,
1067 		    "Vendor request 84xx updatefw failed.\n");
1068 
1069 		rval = (DID_ERROR << 16);
1070 	} else {
1071 		ql_dbg(ql_dbg_user, vha, 0x7038,
1072 		    "Vendor request 84xx updatefw completed.\n");
1073 
1074 		bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1075 		bsg_reply->result = DID_OK;
1076 	}
1077 
1078 	dma_pool_free(ha->s_dma_pool, mn, mn_dma);
1079 
1080 done_free_fw_buf:
1081 	dma_free_coherent(&ha->pdev->dev, data_len, fw_buf, fw_dma);
1082 
1083 done_unmap_sg:
1084 	dma_unmap_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list,
1085 		bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
1086 
1087 	if (!rval)
1088 		bsg_job_done(bsg_job, bsg_reply->result,
1089 			       bsg_reply->reply_payload_rcv_len);
1090 	return rval;
1091 }
1092 
1093 static int
1094 qla84xx_mgmt_cmd(struct bsg_job *bsg_job)
1095 {
1096 	struct fc_bsg_request *bsg_request = bsg_job->request;
1097 	struct fc_bsg_reply *bsg_reply = bsg_job->reply;
1098 	struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
1099 	scsi_qla_host_t *vha = shost_priv(host);
1100 	struct qla_hw_data *ha = vha->hw;
1101 	struct access_chip_84xx *mn = NULL;
1102 	dma_addr_t mn_dma, mgmt_dma;
1103 	void *mgmt_b = NULL;
1104 	int rval = 0;
1105 	struct qla_bsg_a84_mgmt *ql84_mgmt;
1106 	uint32_t sg_cnt;
1107 	uint32_t data_len = 0;
1108 	uint32_t dma_direction = DMA_NONE;
1109 
1110 	if (!IS_QLA84XX(ha)) {
1111 		ql_log(ql_log_warn, vha, 0x703a,
1112 		    "Not 84xx, exiting.\n");
1113 		return -EINVAL;
1114 	}
1115 
1116 	mn = dma_pool_zalloc(ha->s_dma_pool, GFP_KERNEL, &mn_dma);
1117 	if (!mn) {
1118 		ql_log(ql_log_warn, vha, 0x703c,
1119 		    "DMA alloc failed for fw buffer.\n");
1120 		return -ENOMEM;
1121 	}
1122 
1123 	mn->entry_type = ACCESS_CHIP_IOCB_TYPE;
1124 	mn->entry_count = 1;
1125 	ql84_mgmt = (void *)bsg_request + sizeof(struct fc_bsg_request);
1126 	switch (ql84_mgmt->mgmt.cmd) {
1127 	case QLA84_MGMT_READ_MEM:
1128 	case QLA84_MGMT_GET_INFO:
1129 		sg_cnt = dma_map_sg(&ha->pdev->dev,
1130 			bsg_job->reply_payload.sg_list,
1131 			bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
1132 		if (!sg_cnt) {
1133 			ql_log(ql_log_warn, vha, 0x703d,
1134 			    "dma_map_sg returned %d for reply.\n", sg_cnt);
1135 			rval = -ENOMEM;
1136 			goto exit_mgmt;
1137 		}
1138 
1139 		dma_direction = DMA_FROM_DEVICE;
1140 
1141 		if (sg_cnt != bsg_job->reply_payload.sg_cnt) {
1142 			ql_log(ql_log_warn, vha, 0x703e,
1143 			    "DMA mapping resulted in different sg counts, "
1144 			    "reply_sg_cnt: %x dma_reply_sg_cnt: %x.\n",
1145 			    bsg_job->reply_payload.sg_cnt, sg_cnt);
1146 			rval = -EAGAIN;
1147 			goto done_unmap_sg;
1148 		}
1149 
1150 		data_len = bsg_job->reply_payload.payload_len;
1151 
1152 		mgmt_b = dma_alloc_coherent(&ha->pdev->dev, data_len,
1153 		    &mgmt_dma, GFP_KERNEL);
1154 		if (!mgmt_b) {
1155 			ql_log(ql_log_warn, vha, 0x703f,
1156 			    "DMA alloc failed for mgmt_b.\n");
1157 			rval = -ENOMEM;
1158 			goto done_unmap_sg;
1159 		}
1160 
1161 		if (ql84_mgmt->mgmt.cmd == QLA84_MGMT_READ_MEM) {
1162 			mn->options = cpu_to_le16(ACO_DUMP_MEMORY);
1163 			mn->parameter1 =
1164 				cpu_to_le32(
1165 				ql84_mgmt->mgmt.mgmtp.u.mem.start_addr);
1166 
1167 		} else if (ql84_mgmt->mgmt.cmd == QLA84_MGMT_GET_INFO) {
1168 			mn->options = cpu_to_le16(ACO_REQUEST_INFO);
1169 			mn->parameter1 =
1170 				cpu_to_le32(ql84_mgmt->mgmt.mgmtp.u.info.type);
1171 
1172 			mn->parameter2 =
1173 				cpu_to_le32(
1174 				ql84_mgmt->mgmt.mgmtp.u.info.context);
1175 		}
1176 		break;
1177 
1178 	case QLA84_MGMT_WRITE_MEM:
1179 		sg_cnt = dma_map_sg(&ha->pdev->dev,
1180 			bsg_job->request_payload.sg_list,
1181 			bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
1182 
1183 		if (!sg_cnt) {
1184 			ql_log(ql_log_warn, vha, 0x7040,
1185 			    "dma_map_sg returned %d.\n", sg_cnt);
1186 			rval = -ENOMEM;
1187 			goto exit_mgmt;
1188 		}
1189 
1190 		dma_direction = DMA_TO_DEVICE;
1191 
1192 		if (sg_cnt != bsg_job->request_payload.sg_cnt) {
1193 			ql_log(ql_log_warn, vha, 0x7041,
1194 			    "DMA mapping resulted in different sg counts, "
1195 			    "request_sg_cnt: %x dma_request_sg_cnt: %x.\n",
1196 			    bsg_job->request_payload.sg_cnt, sg_cnt);
1197 			rval = -EAGAIN;
1198 			goto done_unmap_sg;
1199 		}
1200 
1201 		data_len = bsg_job->request_payload.payload_len;
1202 		mgmt_b = dma_alloc_coherent(&ha->pdev->dev, data_len,
1203 			&mgmt_dma, GFP_KERNEL);
1204 		if (!mgmt_b) {
1205 			ql_log(ql_log_warn, vha, 0x7042,
1206 			    "DMA alloc failed for mgmt_b.\n");
1207 			rval = -ENOMEM;
1208 			goto done_unmap_sg;
1209 		}
1210 
1211 		sg_copy_to_buffer(bsg_job->request_payload.sg_list,
1212 			bsg_job->request_payload.sg_cnt, mgmt_b, data_len);
1213 
1214 		mn->options = cpu_to_le16(ACO_LOAD_MEMORY);
1215 		mn->parameter1 =
1216 			cpu_to_le32(ql84_mgmt->mgmt.mgmtp.u.mem.start_addr);
1217 		break;
1218 
1219 	case QLA84_MGMT_CHNG_CONFIG:
1220 		mn->options = cpu_to_le16(ACO_CHANGE_CONFIG_PARAM);
1221 		mn->parameter1 =
1222 			cpu_to_le32(ql84_mgmt->mgmt.mgmtp.u.config.id);
1223 
1224 		mn->parameter2 =
1225 			cpu_to_le32(ql84_mgmt->mgmt.mgmtp.u.config.param0);
1226 
1227 		mn->parameter3 =
1228 			cpu_to_le32(ql84_mgmt->mgmt.mgmtp.u.config.param1);
1229 		break;
1230 
1231 	default:
1232 		rval = -EIO;
1233 		goto exit_mgmt;
1234 	}
1235 
1236 	if (ql84_mgmt->mgmt.cmd != QLA84_MGMT_CHNG_CONFIG) {
1237 		mn->total_byte_cnt = cpu_to_le32(ql84_mgmt->mgmt.len);
1238 		mn->dseg_count = cpu_to_le16(1);
1239 		put_unaligned_le64(mgmt_dma, &mn->dsd.address);
1240 		mn->dsd.length = cpu_to_le32(ql84_mgmt->mgmt.len);
1241 	}
1242 
1243 	rval = qla2x00_issue_iocb(vha, mn, mn_dma, 0);
1244 
1245 	if (rval) {
1246 		ql_log(ql_log_warn, vha, 0x7043,
1247 		    "Vendor request 84xx mgmt failed.\n");
1248 
1249 		rval = (DID_ERROR << 16);
1250 
1251 	} else {
1252 		ql_dbg(ql_dbg_user, vha, 0x7044,
1253 		    "Vendor request 84xx mgmt completed.\n");
1254 
1255 		bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1256 		bsg_reply->result = DID_OK;
1257 
1258 		if ((ql84_mgmt->mgmt.cmd == QLA84_MGMT_READ_MEM) ||
1259 			(ql84_mgmt->mgmt.cmd == QLA84_MGMT_GET_INFO)) {
1260 			bsg_reply->reply_payload_rcv_len =
1261 				bsg_job->reply_payload.payload_len;
1262 
1263 			sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
1264 				bsg_job->reply_payload.sg_cnt, mgmt_b,
1265 				data_len);
1266 		}
1267 	}
1268 
1269 done_unmap_sg:
1270 	if (mgmt_b)
1271 		dma_free_coherent(&ha->pdev->dev, data_len, mgmt_b, mgmt_dma);
1272 
1273 	if (dma_direction == DMA_TO_DEVICE)
1274 		dma_unmap_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list,
1275 			bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
1276 	else if (dma_direction == DMA_FROM_DEVICE)
1277 		dma_unmap_sg(&ha->pdev->dev, bsg_job->reply_payload.sg_list,
1278 			bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
1279 
1280 exit_mgmt:
1281 	dma_pool_free(ha->s_dma_pool, mn, mn_dma);
1282 
1283 	if (!rval)
1284 		bsg_job_done(bsg_job, bsg_reply->result,
1285 			       bsg_reply->reply_payload_rcv_len);
1286 	return rval;
1287 }
1288 
1289 static int
1290 qla24xx_iidma(struct bsg_job *bsg_job)
1291 {
1292 	struct fc_bsg_request *bsg_request = bsg_job->request;
1293 	struct fc_bsg_reply *bsg_reply = bsg_job->reply;
1294 	struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
1295 	scsi_qla_host_t *vha = shost_priv(host);
1296 	int rval = 0;
1297 	struct qla_port_param *port_param = NULL;
1298 	fc_port_t *fcport = NULL;
1299 	int found = 0;
1300 	uint16_t mb[MAILBOX_REGISTER_COUNT];
1301 	uint8_t *rsp_ptr = NULL;
1302 
1303 	if (!IS_IIDMA_CAPABLE(vha->hw)) {
1304 		ql_log(ql_log_info, vha, 0x7046, "iiDMA not supported.\n");
1305 		return -EINVAL;
1306 	}
1307 
1308 	port_param = (void *)bsg_request + sizeof(struct fc_bsg_request);
1309 	if (port_param->fc_scsi_addr.dest_type != EXT_DEF_TYPE_WWPN) {
1310 		ql_log(ql_log_warn, vha, 0x7048,
1311 		    "Invalid destination type.\n");
1312 		return -EINVAL;
1313 	}
1314 
1315 	list_for_each_entry(fcport, &vha->vp_fcports, list) {
1316 		if (fcport->port_type != FCT_TARGET)
1317 			continue;
1318 
1319 		if (memcmp(port_param->fc_scsi_addr.dest_addr.wwpn,
1320 			fcport->port_name, sizeof(fcport->port_name)))
1321 			continue;
1322 
1323 		found = 1;
1324 		break;
1325 	}
1326 
1327 	if (!found) {
1328 		ql_log(ql_log_warn, vha, 0x7049,
1329 		    "Failed to find port.\n");
1330 		return -EINVAL;
1331 	}
1332 
1333 	if (atomic_read(&fcport->state) != FCS_ONLINE) {
1334 		ql_log(ql_log_warn, vha, 0x704a,
1335 		    "Port is not online.\n");
1336 		return -EINVAL;
1337 	}
1338 
1339 	if (fcport->flags & FCF_LOGIN_NEEDED) {
1340 		ql_log(ql_log_warn, vha, 0x704b,
1341 		    "Remote port not logged in flags = 0x%x.\n", fcport->flags);
1342 		return -EINVAL;
1343 	}
1344 
1345 	if (port_param->mode)
1346 		rval = qla2x00_set_idma_speed(vha, fcport->loop_id,
1347 			port_param->speed, mb);
1348 	else
1349 		rval = qla2x00_get_idma_speed(vha, fcport->loop_id,
1350 			&port_param->speed, mb);
1351 
1352 	if (rval) {
1353 		ql_log(ql_log_warn, vha, 0x704c,
1354 		    "iiDMA cmd failed for %8phN -- "
1355 		    "%04x %x %04x %04x.\n", fcport->port_name,
1356 		    rval, fcport->fp_speed, mb[0], mb[1]);
1357 		rval = (DID_ERROR << 16);
1358 	} else {
1359 		if (!port_param->mode) {
1360 			bsg_job->reply_len = sizeof(struct fc_bsg_reply) +
1361 				sizeof(struct qla_port_param);
1362 
1363 			rsp_ptr = ((uint8_t *)bsg_reply) +
1364 				sizeof(struct fc_bsg_reply);
1365 
1366 			memcpy(rsp_ptr, port_param,
1367 				sizeof(struct qla_port_param));
1368 		}
1369 
1370 		bsg_reply->result = DID_OK;
1371 		bsg_job_done(bsg_job, bsg_reply->result,
1372 			       bsg_reply->reply_payload_rcv_len);
1373 	}
1374 
1375 	return rval;
1376 }
1377 
1378 static int
1379 qla2x00_optrom_setup(struct bsg_job *bsg_job, scsi_qla_host_t *vha,
1380 	uint8_t is_update)
1381 {
1382 	struct fc_bsg_request *bsg_request = bsg_job->request;
1383 	uint32_t start = 0;
1384 	int valid = 0;
1385 	struct qla_hw_data *ha = vha->hw;
1386 
1387 	if (unlikely(pci_channel_offline(ha->pdev)))
1388 		return -EINVAL;
1389 
1390 	start = bsg_request->rqst_data.h_vendor.vendor_cmd[1];
1391 	if (start > ha->optrom_size) {
1392 		ql_log(ql_log_warn, vha, 0x7055,
1393 		    "start %d > optrom_size %d.\n", start, ha->optrom_size);
1394 		return -EINVAL;
1395 	}
1396 
1397 	if (ha->optrom_state != QLA_SWAITING) {
1398 		ql_log(ql_log_info, vha, 0x7056,
1399 		    "optrom_state %d.\n", ha->optrom_state);
1400 		return -EBUSY;
1401 	}
1402 
1403 	ha->optrom_region_start = start;
1404 	ql_dbg(ql_dbg_user, vha, 0x7057, "is_update=%d.\n", is_update);
1405 	if (is_update) {
1406 		if (ha->optrom_size == OPTROM_SIZE_2300 && start == 0)
1407 			valid = 1;
1408 		else if (start == (ha->flt_region_boot * 4) ||
1409 		    start == (ha->flt_region_fw * 4))
1410 			valid = 1;
1411 		else if (IS_QLA24XX_TYPE(ha) || IS_QLA25XX(ha) ||
1412 		    IS_CNA_CAPABLE(ha) || IS_QLA2031(ha) || IS_QLA27XX(ha) ||
1413 		    IS_QLA28XX(ha))
1414 			valid = 1;
1415 		if (!valid) {
1416 			ql_log(ql_log_warn, vha, 0x7058,
1417 			    "Invalid start region 0x%x/0x%x.\n", start,
1418 			    bsg_job->request_payload.payload_len);
1419 			return -EINVAL;
1420 		}
1421 
1422 		ha->optrom_region_size = start +
1423 		    bsg_job->request_payload.payload_len > ha->optrom_size ?
1424 		    ha->optrom_size - start :
1425 		    bsg_job->request_payload.payload_len;
1426 		ha->optrom_state = QLA_SWRITING;
1427 	} else {
1428 		ha->optrom_region_size = start +
1429 		    bsg_job->reply_payload.payload_len > ha->optrom_size ?
1430 		    ha->optrom_size - start :
1431 		    bsg_job->reply_payload.payload_len;
1432 		ha->optrom_state = QLA_SREADING;
1433 	}
1434 
1435 	ha->optrom_buffer = vzalloc(ha->optrom_region_size);
1436 	if (!ha->optrom_buffer) {
1437 		ql_log(ql_log_warn, vha, 0x7059,
1438 		    "Read: Unable to allocate memory for optrom retrieval "
1439 		    "(%x)\n", ha->optrom_region_size);
1440 
1441 		ha->optrom_state = QLA_SWAITING;
1442 		return -ENOMEM;
1443 	}
1444 
1445 	return 0;
1446 }
1447 
1448 static int
1449 qla2x00_read_optrom(struct bsg_job *bsg_job)
1450 {
1451 	struct fc_bsg_reply *bsg_reply = bsg_job->reply;
1452 	struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
1453 	scsi_qla_host_t *vha = shost_priv(host);
1454 	struct qla_hw_data *ha = vha->hw;
1455 	int rval = 0;
1456 
1457 	if (ha->flags.nic_core_reset_hdlr_active)
1458 		return -EBUSY;
1459 
1460 	mutex_lock(&ha->optrom_mutex);
1461 	rval = qla2x00_optrom_setup(bsg_job, vha, 0);
1462 	if (rval) {
1463 		mutex_unlock(&ha->optrom_mutex);
1464 		return rval;
1465 	}
1466 
1467 	ha->isp_ops->read_optrom(vha, ha->optrom_buffer,
1468 	    ha->optrom_region_start, ha->optrom_region_size);
1469 
1470 	sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
1471 	    bsg_job->reply_payload.sg_cnt, ha->optrom_buffer,
1472 	    ha->optrom_region_size);
1473 
1474 	bsg_reply->reply_payload_rcv_len = ha->optrom_region_size;
1475 	bsg_reply->result = DID_OK;
1476 	vfree(ha->optrom_buffer);
1477 	ha->optrom_buffer = NULL;
1478 	ha->optrom_state = QLA_SWAITING;
1479 	mutex_unlock(&ha->optrom_mutex);
1480 	bsg_job_done(bsg_job, bsg_reply->result,
1481 		       bsg_reply->reply_payload_rcv_len);
1482 	return rval;
1483 }
1484 
1485 static int
1486 qla2x00_update_optrom(struct bsg_job *bsg_job)
1487 {
1488 	struct fc_bsg_reply *bsg_reply = bsg_job->reply;
1489 	struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
1490 	scsi_qla_host_t *vha = shost_priv(host);
1491 	struct qla_hw_data *ha = vha->hw;
1492 	int rval = 0;
1493 
1494 	mutex_lock(&ha->optrom_mutex);
1495 	rval = qla2x00_optrom_setup(bsg_job, vha, 1);
1496 	if (rval) {
1497 		mutex_unlock(&ha->optrom_mutex);
1498 		return rval;
1499 	}
1500 
1501 	/* Set the isp82xx_no_md_cap not to capture minidump */
1502 	ha->flags.isp82xx_no_md_cap = 1;
1503 
1504 	sg_copy_to_buffer(bsg_job->request_payload.sg_list,
1505 	    bsg_job->request_payload.sg_cnt, ha->optrom_buffer,
1506 	    ha->optrom_region_size);
1507 
1508 	ha->isp_ops->write_optrom(vha, ha->optrom_buffer,
1509 	    ha->optrom_region_start, ha->optrom_region_size);
1510 
1511 	bsg_reply->result = DID_OK;
1512 	vfree(ha->optrom_buffer);
1513 	ha->optrom_buffer = NULL;
1514 	ha->optrom_state = QLA_SWAITING;
1515 	mutex_unlock(&ha->optrom_mutex);
1516 	bsg_job_done(bsg_job, bsg_reply->result,
1517 		       bsg_reply->reply_payload_rcv_len);
1518 	return rval;
1519 }
1520 
1521 static int
1522 qla2x00_update_fru_versions(struct bsg_job *bsg_job)
1523 {
1524 	struct fc_bsg_reply *bsg_reply = bsg_job->reply;
1525 	struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
1526 	scsi_qla_host_t *vha = shost_priv(host);
1527 	struct qla_hw_data *ha = vha->hw;
1528 	int rval = 0;
1529 	uint8_t bsg[DMA_POOL_SIZE];
1530 	struct qla_image_version_list *list = (void *)bsg;
1531 	struct qla_image_version *image;
1532 	uint32_t count;
1533 	dma_addr_t sfp_dma;
1534 	void *sfp = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &sfp_dma);
1535 
1536 	if (!sfp) {
1537 		bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
1538 		    EXT_STATUS_NO_MEMORY;
1539 		goto done;
1540 	}
1541 
1542 	sg_copy_to_buffer(bsg_job->request_payload.sg_list,
1543 	    bsg_job->request_payload.sg_cnt, list, sizeof(bsg));
1544 
1545 	image = list->version;
1546 	count = list->count;
1547 	while (count--) {
1548 		memcpy(sfp, &image->field_info, sizeof(image->field_info));
1549 		rval = qla2x00_write_sfp(vha, sfp_dma, sfp,
1550 		    image->field_address.device, image->field_address.offset,
1551 		    sizeof(image->field_info), image->field_address.option);
1552 		if (rval) {
1553 			bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
1554 			    EXT_STATUS_MAILBOX;
1555 			goto dealloc;
1556 		}
1557 		image++;
1558 	}
1559 
1560 	bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = 0;
1561 
1562 dealloc:
1563 	dma_pool_free(ha->s_dma_pool, sfp, sfp_dma);
1564 
1565 done:
1566 	bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1567 	bsg_reply->result = DID_OK << 16;
1568 	bsg_job_done(bsg_job, bsg_reply->result,
1569 		       bsg_reply->reply_payload_rcv_len);
1570 
1571 	return 0;
1572 }
1573 
1574 static int
1575 qla2x00_read_fru_status(struct bsg_job *bsg_job)
1576 {
1577 	struct fc_bsg_reply *bsg_reply = bsg_job->reply;
1578 	struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
1579 	scsi_qla_host_t *vha = shost_priv(host);
1580 	struct qla_hw_data *ha = vha->hw;
1581 	int rval = 0;
1582 	uint8_t bsg[DMA_POOL_SIZE];
1583 	struct qla_status_reg *sr = (void *)bsg;
1584 	dma_addr_t sfp_dma;
1585 	uint8_t *sfp = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &sfp_dma);
1586 
1587 	if (!sfp) {
1588 		bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
1589 		    EXT_STATUS_NO_MEMORY;
1590 		goto done;
1591 	}
1592 
1593 	sg_copy_to_buffer(bsg_job->request_payload.sg_list,
1594 	    bsg_job->request_payload.sg_cnt, sr, sizeof(*sr));
1595 
1596 	rval = qla2x00_read_sfp(vha, sfp_dma, sfp,
1597 	    sr->field_address.device, sr->field_address.offset,
1598 	    sizeof(sr->status_reg), sr->field_address.option);
1599 	sr->status_reg = *sfp;
1600 
1601 	if (rval) {
1602 		bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
1603 		    EXT_STATUS_MAILBOX;
1604 		goto dealloc;
1605 	}
1606 
1607 	sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
1608 	    bsg_job->reply_payload.sg_cnt, sr, sizeof(*sr));
1609 
1610 	bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = 0;
1611 
1612 dealloc:
1613 	dma_pool_free(ha->s_dma_pool, sfp, sfp_dma);
1614 
1615 done:
1616 	bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1617 	bsg_reply->reply_payload_rcv_len = sizeof(*sr);
1618 	bsg_reply->result = DID_OK << 16;
1619 	bsg_job_done(bsg_job, bsg_reply->result,
1620 		       bsg_reply->reply_payload_rcv_len);
1621 
1622 	return 0;
1623 }
1624 
1625 static int
1626 qla2x00_write_fru_status(struct bsg_job *bsg_job)
1627 {
1628 	struct fc_bsg_reply *bsg_reply = bsg_job->reply;
1629 	struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
1630 	scsi_qla_host_t *vha = shost_priv(host);
1631 	struct qla_hw_data *ha = vha->hw;
1632 	int rval = 0;
1633 	uint8_t bsg[DMA_POOL_SIZE];
1634 	struct qla_status_reg *sr = (void *)bsg;
1635 	dma_addr_t sfp_dma;
1636 	uint8_t *sfp = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &sfp_dma);
1637 
1638 	if (!sfp) {
1639 		bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
1640 		    EXT_STATUS_NO_MEMORY;
1641 		goto done;
1642 	}
1643 
1644 	sg_copy_to_buffer(bsg_job->request_payload.sg_list,
1645 	    bsg_job->request_payload.sg_cnt, sr, sizeof(*sr));
1646 
1647 	*sfp = sr->status_reg;
1648 	rval = qla2x00_write_sfp(vha, sfp_dma, sfp,
1649 	    sr->field_address.device, sr->field_address.offset,
1650 	    sizeof(sr->status_reg), sr->field_address.option);
1651 
1652 	if (rval) {
1653 		bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
1654 		    EXT_STATUS_MAILBOX;
1655 		goto dealloc;
1656 	}
1657 
1658 	bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = 0;
1659 
1660 dealloc:
1661 	dma_pool_free(ha->s_dma_pool, sfp, sfp_dma);
1662 
1663 done:
1664 	bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1665 	bsg_reply->result = DID_OK << 16;
1666 	bsg_job_done(bsg_job, bsg_reply->result,
1667 		       bsg_reply->reply_payload_rcv_len);
1668 
1669 	return 0;
1670 }
1671 
1672 static int
1673 qla2x00_write_i2c(struct bsg_job *bsg_job)
1674 {
1675 	struct fc_bsg_reply *bsg_reply = bsg_job->reply;
1676 	struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
1677 	scsi_qla_host_t *vha = shost_priv(host);
1678 	struct qla_hw_data *ha = vha->hw;
1679 	int rval = 0;
1680 	uint8_t bsg[DMA_POOL_SIZE];
1681 	struct qla_i2c_access *i2c = (void *)bsg;
1682 	dma_addr_t sfp_dma;
1683 	uint8_t *sfp = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &sfp_dma);
1684 
1685 	if (!sfp) {
1686 		bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
1687 		    EXT_STATUS_NO_MEMORY;
1688 		goto done;
1689 	}
1690 
1691 	sg_copy_to_buffer(bsg_job->request_payload.sg_list,
1692 	    bsg_job->request_payload.sg_cnt, i2c, sizeof(*i2c));
1693 
1694 	memcpy(sfp, i2c->buffer, i2c->length);
1695 	rval = qla2x00_write_sfp(vha, sfp_dma, sfp,
1696 	    i2c->device, i2c->offset, i2c->length, i2c->option);
1697 
1698 	if (rval) {
1699 		bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
1700 		    EXT_STATUS_MAILBOX;
1701 		goto dealloc;
1702 	}
1703 
1704 	bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = 0;
1705 
1706 dealloc:
1707 	dma_pool_free(ha->s_dma_pool, sfp, sfp_dma);
1708 
1709 done:
1710 	bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1711 	bsg_reply->result = DID_OK << 16;
1712 	bsg_job_done(bsg_job, bsg_reply->result,
1713 		       bsg_reply->reply_payload_rcv_len);
1714 
1715 	return 0;
1716 }
1717 
1718 static int
1719 qla2x00_read_i2c(struct bsg_job *bsg_job)
1720 {
1721 	struct fc_bsg_reply *bsg_reply = bsg_job->reply;
1722 	struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
1723 	scsi_qla_host_t *vha = shost_priv(host);
1724 	struct qla_hw_data *ha = vha->hw;
1725 	int rval = 0;
1726 	uint8_t bsg[DMA_POOL_SIZE];
1727 	struct qla_i2c_access *i2c = (void *)bsg;
1728 	dma_addr_t sfp_dma;
1729 	uint8_t *sfp = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &sfp_dma);
1730 
1731 	if (!sfp) {
1732 		bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
1733 		    EXT_STATUS_NO_MEMORY;
1734 		goto done;
1735 	}
1736 
1737 	sg_copy_to_buffer(bsg_job->request_payload.sg_list,
1738 	    bsg_job->request_payload.sg_cnt, i2c, sizeof(*i2c));
1739 
1740 	rval = qla2x00_read_sfp(vha, sfp_dma, sfp,
1741 		i2c->device, i2c->offset, i2c->length, i2c->option);
1742 
1743 	if (rval) {
1744 		bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
1745 		    EXT_STATUS_MAILBOX;
1746 		goto dealloc;
1747 	}
1748 
1749 	memcpy(i2c->buffer, sfp, i2c->length);
1750 	sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
1751 	    bsg_job->reply_payload.sg_cnt, i2c, sizeof(*i2c));
1752 
1753 	bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = 0;
1754 
1755 dealloc:
1756 	dma_pool_free(ha->s_dma_pool, sfp, sfp_dma);
1757 
1758 done:
1759 	bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1760 	bsg_reply->reply_payload_rcv_len = sizeof(*i2c);
1761 	bsg_reply->result = DID_OK << 16;
1762 	bsg_job_done(bsg_job, bsg_reply->result,
1763 		       bsg_reply->reply_payload_rcv_len);
1764 
1765 	return 0;
1766 }
1767 
1768 static int
1769 qla24xx_process_bidir_cmd(struct bsg_job *bsg_job)
1770 {
1771 	struct fc_bsg_reply *bsg_reply = bsg_job->reply;
1772 	struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
1773 	scsi_qla_host_t *vha = shost_priv(host);
1774 	struct qla_hw_data *ha = vha->hw;
1775 	uint32_t rval = EXT_STATUS_OK;
1776 	uint16_t req_sg_cnt = 0;
1777 	uint16_t rsp_sg_cnt = 0;
1778 	uint16_t nextlid = 0;
1779 	uint32_t tot_dsds;
1780 	srb_t *sp = NULL;
1781 	uint32_t req_data_len = 0;
1782 	uint32_t rsp_data_len = 0;
1783 
1784 	/* Check the type of the adapter */
1785 	if (!IS_BIDI_CAPABLE(ha)) {
1786 		ql_log(ql_log_warn, vha, 0x70a0,
1787 			"This adapter is not supported\n");
1788 		rval = EXT_STATUS_NOT_SUPPORTED;
1789 		goto done;
1790 	}
1791 
1792 	if (test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) ||
1793 		test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) ||
1794 		test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
1795 		rval =  EXT_STATUS_BUSY;
1796 		goto done;
1797 	}
1798 
1799 	/* Check if host is online */
1800 	if (!vha->flags.online) {
1801 		ql_log(ql_log_warn, vha, 0x70a1,
1802 			"Host is not online\n");
1803 		rval = EXT_STATUS_DEVICE_OFFLINE;
1804 		goto done;
1805 	}
1806 
1807 	/* Check if cable is plugged in or not */
1808 	if (vha->device_flags & DFLG_NO_CABLE) {
1809 		ql_log(ql_log_warn, vha, 0x70a2,
1810 			"Cable is unplugged...\n");
1811 		rval = EXT_STATUS_INVALID_CFG;
1812 		goto done;
1813 	}
1814 
1815 	/* Check if the switch is connected or not */
1816 	if (ha->current_topology != ISP_CFG_F) {
1817 		ql_log(ql_log_warn, vha, 0x70a3,
1818 			"Host is not connected to the switch\n");
1819 		rval = EXT_STATUS_INVALID_CFG;
1820 		goto done;
1821 	}
1822 
1823 	/* Check if operating mode is P2P */
1824 	if (ha->operating_mode != P2P) {
1825 		ql_log(ql_log_warn, vha, 0x70a4,
1826 		    "Host operating mode is not P2p\n");
1827 		rval = EXT_STATUS_INVALID_CFG;
1828 		goto done;
1829 	}
1830 
1831 	mutex_lock(&ha->selflogin_lock);
1832 	if (vha->self_login_loop_id == 0) {
1833 		/* Initialize all required  fields of fcport */
1834 		vha->bidir_fcport.vha = vha;
1835 		vha->bidir_fcport.d_id.b.al_pa = vha->d_id.b.al_pa;
1836 		vha->bidir_fcport.d_id.b.area = vha->d_id.b.area;
1837 		vha->bidir_fcport.d_id.b.domain = vha->d_id.b.domain;
1838 		vha->bidir_fcport.loop_id = vha->loop_id;
1839 
1840 		if (qla2x00_fabric_login(vha, &(vha->bidir_fcport), &nextlid)) {
1841 			ql_log(ql_log_warn, vha, 0x70a7,
1842 			    "Failed to login port %06X for bidirectional IOCB\n",
1843 			    vha->bidir_fcport.d_id.b24);
1844 			mutex_unlock(&ha->selflogin_lock);
1845 			rval = EXT_STATUS_MAILBOX;
1846 			goto done;
1847 		}
1848 		vha->self_login_loop_id = nextlid - 1;
1849 
1850 	}
1851 	/* Assign the self login loop id to fcport */
1852 	mutex_unlock(&ha->selflogin_lock);
1853 
1854 	vha->bidir_fcport.loop_id = vha->self_login_loop_id;
1855 
1856 	req_sg_cnt = dma_map_sg(&ha->pdev->dev,
1857 		bsg_job->request_payload.sg_list,
1858 		bsg_job->request_payload.sg_cnt,
1859 		DMA_TO_DEVICE);
1860 
1861 	if (!req_sg_cnt) {
1862 		rval = EXT_STATUS_NO_MEMORY;
1863 		goto done;
1864 	}
1865 
1866 	rsp_sg_cnt = dma_map_sg(&ha->pdev->dev,
1867 		bsg_job->reply_payload.sg_list, bsg_job->reply_payload.sg_cnt,
1868 		DMA_FROM_DEVICE);
1869 
1870 	if (!rsp_sg_cnt) {
1871 		rval = EXT_STATUS_NO_MEMORY;
1872 		goto done_unmap_req_sg;
1873 	}
1874 
1875 	if ((req_sg_cnt !=  bsg_job->request_payload.sg_cnt) ||
1876 		(rsp_sg_cnt != bsg_job->reply_payload.sg_cnt)) {
1877 		ql_dbg(ql_dbg_user, vha, 0x70a9,
1878 		    "Dma mapping resulted in different sg counts "
1879 		    "[request_sg_cnt: %x dma_request_sg_cnt: %x reply_sg_cnt: "
1880 		    "%x dma_reply_sg_cnt: %x]\n",
1881 		    bsg_job->request_payload.sg_cnt, req_sg_cnt,
1882 		    bsg_job->reply_payload.sg_cnt, rsp_sg_cnt);
1883 		rval = EXT_STATUS_NO_MEMORY;
1884 		goto done_unmap_sg;
1885 	}
1886 
1887 	if (req_data_len != rsp_data_len) {
1888 		rval = EXT_STATUS_BUSY;
1889 		ql_log(ql_log_warn, vha, 0x70aa,
1890 		    "req_data_len != rsp_data_len\n");
1891 		goto done_unmap_sg;
1892 	}
1893 
1894 	req_data_len = bsg_job->request_payload.payload_len;
1895 	rsp_data_len = bsg_job->reply_payload.payload_len;
1896 
1897 
1898 	/* Alloc SRB structure */
1899 	sp = qla2x00_get_sp(vha, &(vha->bidir_fcport), GFP_KERNEL);
1900 	if (!sp) {
1901 		ql_dbg(ql_dbg_user, vha, 0x70ac,
1902 		    "Alloc SRB structure failed\n");
1903 		rval = EXT_STATUS_NO_MEMORY;
1904 		goto done_unmap_sg;
1905 	}
1906 
1907 	/*Populate srb->ctx with bidir ctx*/
1908 	sp->u.bsg_job = bsg_job;
1909 	sp->free = qla2x00_bsg_sp_free;
1910 	sp->type = SRB_BIDI_CMD;
1911 	sp->done = qla2x00_bsg_job_done;
1912 
1913 	/* Add the read and write sg count */
1914 	tot_dsds = rsp_sg_cnt + req_sg_cnt;
1915 
1916 	rval = qla2x00_start_bidir(sp, vha, tot_dsds);
1917 	if (rval != EXT_STATUS_OK)
1918 		goto done_free_srb;
1919 	/* the bsg request  will be completed in the interrupt handler */
1920 	return rval;
1921 
1922 done_free_srb:
1923 	mempool_free(sp, ha->srb_mempool);
1924 done_unmap_sg:
1925 	dma_unmap_sg(&ha->pdev->dev,
1926 	    bsg_job->reply_payload.sg_list,
1927 	    bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
1928 done_unmap_req_sg:
1929 	dma_unmap_sg(&ha->pdev->dev,
1930 	    bsg_job->request_payload.sg_list,
1931 	    bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
1932 done:
1933 
1934 	/* Return an error vendor specific response
1935 	 * and complete the bsg request
1936 	 */
1937 	bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = rval;
1938 	bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1939 	bsg_reply->reply_payload_rcv_len = 0;
1940 	bsg_reply->result = (DID_OK) << 16;
1941 	bsg_job_done(bsg_job, bsg_reply->result,
1942 		       bsg_reply->reply_payload_rcv_len);
1943 	/* Always return success, vendor rsp carries correct status */
1944 	return 0;
1945 }
1946 
1947 static int
1948 qlafx00_mgmt_cmd(struct bsg_job *bsg_job)
1949 {
1950 	struct fc_bsg_request *bsg_request = bsg_job->request;
1951 	struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
1952 	scsi_qla_host_t *vha = shost_priv(host);
1953 	struct qla_hw_data *ha = vha->hw;
1954 	int rval = (DRIVER_ERROR << 16);
1955 	struct qla_mt_iocb_rqst_fx00 *piocb_rqst;
1956 	srb_t *sp;
1957 	int req_sg_cnt = 0, rsp_sg_cnt = 0;
1958 	struct fc_port *fcport;
1959 	char  *type = "FC_BSG_HST_FX_MGMT";
1960 
1961 	/* Copy the IOCB specific information */
1962 	piocb_rqst = (struct qla_mt_iocb_rqst_fx00 *)
1963 	    &bsg_request->rqst_data.h_vendor.vendor_cmd[1];
1964 
1965 	/* Dump the vendor information */
1966 	ql_dump_buffer(ql_dbg_user + ql_dbg_verbose , vha, 0x70cf,
1967 	    piocb_rqst, sizeof(*piocb_rqst));
1968 
1969 	if (!vha->flags.online) {
1970 		ql_log(ql_log_warn, vha, 0x70d0,
1971 		    "Host is not online.\n");
1972 		rval = -EIO;
1973 		goto done;
1974 	}
1975 
1976 	if (piocb_rqst->flags & SRB_FXDISC_REQ_DMA_VALID) {
1977 		req_sg_cnt = dma_map_sg(&ha->pdev->dev,
1978 		    bsg_job->request_payload.sg_list,
1979 		    bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
1980 		if (!req_sg_cnt) {
1981 			ql_log(ql_log_warn, vha, 0x70c7,
1982 			    "dma_map_sg return %d for request\n", req_sg_cnt);
1983 			rval = -ENOMEM;
1984 			goto done;
1985 		}
1986 	}
1987 
1988 	if (piocb_rqst->flags & SRB_FXDISC_RESP_DMA_VALID) {
1989 		rsp_sg_cnt = dma_map_sg(&ha->pdev->dev,
1990 		    bsg_job->reply_payload.sg_list,
1991 		    bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
1992 		if (!rsp_sg_cnt) {
1993 			ql_log(ql_log_warn, vha, 0x70c8,
1994 			    "dma_map_sg return %d for reply\n", rsp_sg_cnt);
1995 			rval = -ENOMEM;
1996 			goto done_unmap_req_sg;
1997 		}
1998 	}
1999 
2000 	ql_dbg(ql_dbg_user, vha, 0x70c9,
2001 	    "request_sg_cnt: %x dma_request_sg_cnt: %x reply_sg_cnt:%x "
2002 	    "dma_reply_sg_cnt: %x\n", bsg_job->request_payload.sg_cnt,
2003 	    req_sg_cnt, bsg_job->reply_payload.sg_cnt, rsp_sg_cnt);
2004 
2005 	/* Allocate a dummy fcport structure, since functions preparing the
2006 	 * IOCB and mailbox command retrieves port specific information
2007 	 * from fcport structure. For Host based ELS commands there will be
2008 	 * no fcport structure allocated
2009 	 */
2010 	fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
2011 	if (!fcport) {
2012 		ql_log(ql_log_warn, vha, 0x70ca,
2013 		    "Failed to allocate fcport.\n");
2014 		rval = -ENOMEM;
2015 		goto done_unmap_rsp_sg;
2016 	}
2017 
2018 	/* Alloc SRB structure */
2019 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
2020 	if (!sp) {
2021 		ql_log(ql_log_warn, vha, 0x70cb,
2022 		    "qla2x00_get_sp failed.\n");
2023 		rval = -ENOMEM;
2024 		goto done_free_fcport;
2025 	}
2026 
2027 	/* Initialize all required  fields of fcport */
2028 	fcport->vha = vha;
2029 	fcport->loop_id = piocb_rqst->dataword;
2030 
2031 	sp->type = SRB_FXIOCB_BCMD;
2032 	sp->name = "bsg_fx_mgmt";
2033 	sp->iocbs = qla24xx_calc_ct_iocbs(req_sg_cnt + rsp_sg_cnt);
2034 	sp->u.bsg_job = bsg_job;
2035 	sp->free = qla2x00_bsg_sp_free;
2036 	sp->done = qla2x00_bsg_job_done;
2037 
2038 	ql_dbg(ql_dbg_user, vha, 0x70cc,
2039 	    "bsg rqst type: %s fx_mgmt_type: %x id=%x\n",
2040 	    type, piocb_rqst->func_type, fcport->loop_id);
2041 
2042 	rval = qla2x00_start_sp(sp);
2043 	if (rval != QLA_SUCCESS) {
2044 		ql_log(ql_log_warn, vha, 0x70cd,
2045 		    "qla2x00_start_sp failed=%d.\n", rval);
2046 		mempool_free(sp, ha->srb_mempool);
2047 		rval = -EIO;
2048 		goto done_free_fcport;
2049 	}
2050 	return rval;
2051 
2052 done_free_fcport:
2053 	kfree(fcport);
2054 
2055 done_unmap_rsp_sg:
2056 	if (piocb_rqst->flags & SRB_FXDISC_RESP_DMA_VALID)
2057 		dma_unmap_sg(&ha->pdev->dev,
2058 		    bsg_job->reply_payload.sg_list,
2059 		    bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
2060 done_unmap_req_sg:
2061 	if (piocb_rqst->flags & SRB_FXDISC_REQ_DMA_VALID)
2062 		dma_unmap_sg(&ha->pdev->dev,
2063 		    bsg_job->request_payload.sg_list,
2064 		    bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
2065 
2066 done:
2067 	return rval;
2068 }
2069 
2070 static int
2071 qla26xx_serdes_op(struct bsg_job *bsg_job)
2072 {
2073 	struct fc_bsg_reply *bsg_reply = bsg_job->reply;
2074 	struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
2075 	scsi_qla_host_t *vha = shost_priv(host);
2076 	int rval = 0;
2077 	struct qla_serdes_reg sr;
2078 
2079 	memset(&sr, 0, sizeof(sr));
2080 
2081 	sg_copy_to_buffer(bsg_job->request_payload.sg_list,
2082 	    bsg_job->request_payload.sg_cnt, &sr, sizeof(sr));
2083 
2084 	switch (sr.cmd) {
2085 	case INT_SC_SERDES_WRITE_REG:
2086 		rval = qla2x00_write_serdes_word(vha, sr.addr, sr.val);
2087 		bsg_reply->reply_payload_rcv_len = 0;
2088 		break;
2089 	case INT_SC_SERDES_READ_REG:
2090 		rval = qla2x00_read_serdes_word(vha, sr.addr, &sr.val);
2091 		sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
2092 		    bsg_job->reply_payload.sg_cnt, &sr, sizeof(sr));
2093 		bsg_reply->reply_payload_rcv_len = sizeof(sr);
2094 		break;
2095 	default:
2096 		ql_dbg(ql_dbg_user, vha, 0x708c,
2097 		    "Unknown serdes cmd %x.\n", sr.cmd);
2098 		rval = -EINVAL;
2099 		break;
2100 	}
2101 
2102 	bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
2103 	    rval ? EXT_STATUS_MAILBOX : 0;
2104 
2105 	bsg_job->reply_len = sizeof(struct fc_bsg_reply);
2106 	bsg_reply->result = DID_OK << 16;
2107 	bsg_job_done(bsg_job, bsg_reply->result,
2108 		       bsg_reply->reply_payload_rcv_len);
2109 	return 0;
2110 }
2111 
2112 static int
2113 qla8044_serdes_op(struct bsg_job *bsg_job)
2114 {
2115 	struct fc_bsg_reply *bsg_reply = bsg_job->reply;
2116 	struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
2117 	scsi_qla_host_t *vha = shost_priv(host);
2118 	int rval = 0;
2119 	struct qla_serdes_reg_ex sr;
2120 
2121 	memset(&sr, 0, sizeof(sr));
2122 
2123 	sg_copy_to_buffer(bsg_job->request_payload.sg_list,
2124 	    bsg_job->request_payload.sg_cnt, &sr, sizeof(sr));
2125 
2126 	switch (sr.cmd) {
2127 	case INT_SC_SERDES_WRITE_REG:
2128 		rval = qla8044_write_serdes_word(vha, sr.addr, sr.val);
2129 		bsg_reply->reply_payload_rcv_len = 0;
2130 		break;
2131 	case INT_SC_SERDES_READ_REG:
2132 		rval = qla8044_read_serdes_word(vha, sr.addr, &sr.val);
2133 		sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
2134 		    bsg_job->reply_payload.sg_cnt, &sr, sizeof(sr));
2135 		bsg_reply->reply_payload_rcv_len = sizeof(sr);
2136 		break;
2137 	default:
2138 		ql_dbg(ql_dbg_user, vha, 0x7020,
2139 		    "Unknown serdes cmd %x.\n", sr.cmd);
2140 		rval = -EINVAL;
2141 		break;
2142 	}
2143 
2144 	bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
2145 	    rval ? EXT_STATUS_MAILBOX : 0;
2146 
2147 	bsg_job->reply_len = sizeof(struct fc_bsg_reply);
2148 	bsg_reply->result = DID_OK << 16;
2149 	bsg_job_done(bsg_job, bsg_reply->result,
2150 		       bsg_reply->reply_payload_rcv_len);
2151 	return 0;
2152 }
2153 
2154 static int
2155 qla27xx_get_flash_upd_cap(struct bsg_job *bsg_job)
2156 {
2157 	struct fc_bsg_reply *bsg_reply = bsg_job->reply;
2158 	struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
2159 	scsi_qla_host_t *vha = shost_priv(host);
2160 	struct qla_hw_data *ha = vha->hw;
2161 	struct qla_flash_update_caps cap;
2162 
2163 	if (!(IS_QLA27XX(ha)) && !IS_QLA28XX(ha))
2164 		return -EPERM;
2165 
2166 	memset(&cap, 0, sizeof(cap));
2167 	cap.capabilities = (uint64_t)ha->fw_attributes_ext[1] << 48 |
2168 			   (uint64_t)ha->fw_attributes_ext[0] << 32 |
2169 			   (uint64_t)ha->fw_attributes_h << 16 |
2170 			   (uint64_t)ha->fw_attributes;
2171 
2172 	sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
2173 	    bsg_job->reply_payload.sg_cnt, &cap, sizeof(cap));
2174 	bsg_reply->reply_payload_rcv_len = sizeof(cap);
2175 
2176 	bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
2177 	    EXT_STATUS_OK;
2178 
2179 	bsg_job->reply_len = sizeof(struct fc_bsg_reply);
2180 	bsg_reply->result = DID_OK << 16;
2181 	bsg_job_done(bsg_job, bsg_reply->result,
2182 		       bsg_reply->reply_payload_rcv_len);
2183 	return 0;
2184 }
2185 
2186 static int
2187 qla27xx_set_flash_upd_cap(struct bsg_job *bsg_job)
2188 {
2189 	struct fc_bsg_reply *bsg_reply = bsg_job->reply;
2190 	struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
2191 	scsi_qla_host_t *vha = shost_priv(host);
2192 	struct qla_hw_data *ha = vha->hw;
2193 	uint64_t online_fw_attr = 0;
2194 	struct qla_flash_update_caps cap;
2195 
2196 	if (!IS_QLA27XX(ha) && !IS_QLA28XX(ha))
2197 		return -EPERM;
2198 
2199 	memset(&cap, 0, sizeof(cap));
2200 	sg_copy_to_buffer(bsg_job->request_payload.sg_list,
2201 	    bsg_job->request_payload.sg_cnt, &cap, sizeof(cap));
2202 
2203 	online_fw_attr = (uint64_t)ha->fw_attributes_ext[1] << 48 |
2204 			 (uint64_t)ha->fw_attributes_ext[0] << 32 |
2205 			 (uint64_t)ha->fw_attributes_h << 16 |
2206 			 (uint64_t)ha->fw_attributes;
2207 
2208 	if (online_fw_attr != cap.capabilities) {
2209 		bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
2210 		    EXT_STATUS_INVALID_PARAM;
2211 		return -EINVAL;
2212 	}
2213 
2214 	if (cap.outage_duration < MAX_LOOP_TIMEOUT)  {
2215 		bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
2216 		    EXT_STATUS_INVALID_PARAM;
2217 		return -EINVAL;
2218 	}
2219 
2220 	bsg_reply->reply_payload_rcv_len = 0;
2221 
2222 	bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
2223 	    EXT_STATUS_OK;
2224 
2225 	bsg_job->reply_len = sizeof(struct fc_bsg_reply);
2226 	bsg_reply->result = DID_OK << 16;
2227 	bsg_job_done(bsg_job, bsg_reply->result,
2228 		       bsg_reply->reply_payload_rcv_len);
2229 	return 0;
2230 }
2231 
2232 static int
2233 qla27xx_get_bbcr_data(struct bsg_job *bsg_job)
2234 {
2235 	struct fc_bsg_reply *bsg_reply = bsg_job->reply;
2236 	struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
2237 	scsi_qla_host_t *vha = shost_priv(host);
2238 	struct qla_hw_data *ha = vha->hw;
2239 	struct qla_bbcr_data bbcr;
2240 	uint16_t loop_id, topo, sw_cap;
2241 	uint8_t domain, area, al_pa, state;
2242 	int rval;
2243 
2244 	if (!IS_QLA27XX(ha) && !IS_QLA28XX(ha))
2245 		return -EPERM;
2246 
2247 	memset(&bbcr, 0, sizeof(bbcr));
2248 
2249 	if (vha->flags.bbcr_enable)
2250 		bbcr.status = QLA_BBCR_STATUS_ENABLED;
2251 	else
2252 		bbcr.status = QLA_BBCR_STATUS_DISABLED;
2253 
2254 	if (bbcr.status == QLA_BBCR_STATUS_ENABLED) {
2255 		rval = qla2x00_get_adapter_id(vha, &loop_id, &al_pa,
2256 			&area, &domain, &topo, &sw_cap);
2257 		if (rval != QLA_SUCCESS) {
2258 			bbcr.status = QLA_BBCR_STATUS_UNKNOWN;
2259 			bbcr.state = QLA_BBCR_STATE_OFFLINE;
2260 			bbcr.mbx1 = loop_id;
2261 			goto done;
2262 		}
2263 
2264 		state = (vha->bbcr >> 12) & 0x1;
2265 
2266 		if (state) {
2267 			bbcr.state = QLA_BBCR_STATE_OFFLINE;
2268 			bbcr.offline_reason_code = QLA_BBCR_REASON_LOGIN_REJECT;
2269 		} else {
2270 			bbcr.state = QLA_BBCR_STATE_ONLINE;
2271 			bbcr.negotiated_bbscn = (vha->bbcr >> 8) & 0xf;
2272 		}
2273 
2274 		bbcr.configured_bbscn = vha->bbcr & 0xf;
2275 	}
2276 
2277 done:
2278 	sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
2279 		bsg_job->reply_payload.sg_cnt, &bbcr, sizeof(bbcr));
2280 	bsg_reply->reply_payload_rcv_len = sizeof(bbcr);
2281 
2282 	bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = EXT_STATUS_OK;
2283 
2284 	bsg_job->reply_len = sizeof(struct fc_bsg_reply);
2285 	bsg_reply->result = DID_OK << 16;
2286 	bsg_job_done(bsg_job, bsg_reply->result,
2287 		       bsg_reply->reply_payload_rcv_len);
2288 	return 0;
2289 }
2290 
2291 static int
2292 qla2x00_get_priv_stats(struct bsg_job *bsg_job)
2293 {
2294 	struct fc_bsg_request *bsg_request = bsg_job->request;
2295 	struct fc_bsg_reply *bsg_reply = bsg_job->reply;
2296 	struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
2297 	scsi_qla_host_t *vha = shost_priv(host);
2298 	struct qla_hw_data *ha = vha->hw;
2299 	struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
2300 	struct link_statistics *stats = NULL;
2301 	dma_addr_t stats_dma;
2302 	int rval;
2303 	uint32_t *cmd = bsg_request->rqst_data.h_vendor.vendor_cmd;
2304 	uint options = cmd[0] == QL_VND_GET_PRIV_STATS_EX ? cmd[1] : 0;
2305 
2306 	if (test_bit(UNLOADING, &vha->dpc_flags))
2307 		return -ENODEV;
2308 
2309 	if (unlikely(pci_channel_offline(ha->pdev)))
2310 		return -ENODEV;
2311 
2312 	if (qla2x00_reset_active(vha))
2313 		return -EBUSY;
2314 
2315 	if (!IS_FWI2_CAPABLE(ha))
2316 		return -EPERM;
2317 
2318 	stats = dma_alloc_coherent(&ha->pdev->dev, sizeof(*stats), &stats_dma,
2319 				   GFP_KERNEL);
2320 	if (!stats) {
2321 		ql_log(ql_log_warn, vha, 0x70e2,
2322 		    "Failed to allocate memory for stats.\n");
2323 		return -ENOMEM;
2324 	}
2325 
2326 	rval = qla24xx_get_isp_stats(base_vha, stats, stats_dma, options);
2327 
2328 	if (rval == QLA_SUCCESS) {
2329 		ql_dump_buffer(ql_dbg_user + ql_dbg_verbose, vha, 0x70e5,
2330 			stats, sizeof(*stats));
2331 		sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
2332 			bsg_job->reply_payload.sg_cnt, stats, sizeof(*stats));
2333 	}
2334 
2335 	bsg_reply->reply_payload_rcv_len = sizeof(*stats);
2336 	bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
2337 	    rval ? EXT_STATUS_MAILBOX : EXT_STATUS_OK;
2338 
2339 	bsg_job->reply_len = sizeof(*bsg_reply);
2340 	bsg_reply->result = DID_OK << 16;
2341 	bsg_job_done(bsg_job, bsg_reply->result,
2342 		       bsg_reply->reply_payload_rcv_len);
2343 
2344 	dma_free_coherent(&ha->pdev->dev, sizeof(*stats),
2345 		stats, stats_dma);
2346 
2347 	return 0;
2348 }
2349 
2350 static int
2351 qla2x00_do_dport_diagnostics(struct bsg_job *bsg_job)
2352 {
2353 	struct fc_bsg_reply *bsg_reply = bsg_job->reply;
2354 	struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
2355 	scsi_qla_host_t *vha = shost_priv(host);
2356 	int rval;
2357 	struct qla_dport_diag *dd;
2358 
2359 	if (!IS_QLA83XX(vha->hw) && !IS_QLA27XX(vha->hw) &&
2360 	    !IS_QLA28XX(vha->hw))
2361 		return -EPERM;
2362 
2363 	dd = kmalloc(sizeof(*dd), GFP_KERNEL);
2364 	if (!dd) {
2365 		ql_log(ql_log_warn, vha, 0x70db,
2366 		    "Failed to allocate memory for dport.\n");
2367 		return -ENOMEM;
2368 	}
2369 
2370 	sg_copy_to_buffer(bsg_job->request_payload.sg_list,
2371 	    bsg_job->request_payload.sg_cnt, dd, sizeof(*dd));
2372 
2373 	rval = qla26xx_dport_diagnostics(
2374 	    vha, dd->buf, sizeof(dd->buf), dd->options);
2375 	if (rval == QLA_SUCCESS) {
2376 		sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
2377 		    bsg_job->reply_payload.sg_cnt, dd, sizeof(*dd));
2378 	}
2379 
2380 	bsg_reply->reply_payload_rcv_len = sizeof(*dd);
2381 	bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
2382 	    rval ? EXT_STATUS_MAILBOX : EXT_STATUS_OK;
2383 
2384 	bsg_job->reply_len = sizeof(*bsg_reply);
2385 	bsg_reply->result = DID_OK << 16;
2386 	bsg_job_done(bsg_job, bsg_reply->result,
2387 		       bsg_reply->reply_payload_rcv_len);
2388 
2389 	kfree(dd);
2390 
2391 	return 0;
2392 }
2393 
2394 static int
2395 qla2x00_get_flash_image_status(struct bsg_job *bsg_job)
2396 {
2397 	scsi_qla_host_t *vha = shost_priv(fc_bsg_to_shost(bsg_job));
2398 	struct fc_bsg_reply *bsg_reply = bsg_job->reply;
2399 	struct qla_hw_data *ha = vha->hw;
2400 	struct qla_active_regions regions = { };
2401 	struct active_regions active_regions = { };
2402 
2403 	qla28xx_get_aux_images(vha, &active_regions);
2404 	regions.global_image = active_regions.global;
2405 
2406 	if (IS_QLA28XX(ha)) {
2407 		qla27xx_get_active_image(vha, &active_regions);
2408 		regions.board_config = active_regions.aux.board_config;
2409 		regions.vpd_nvram = active_regions.aux.vpd_nvram;
2410 		regions.npiv_config_0_1 = active_regions.aux.npiv_config_0_1;
2411 		regions.npiv_config_2_3 = active_regions.aux.npiv_config_2_3;
2412 	}
2413 
2414 	ql_dbg(ql_dbg_user, vha, 0x70e1,
2415 	    "%s(%lu): FW=%u BCFG=%u VPDNVR=%u NPIV01=%u NPIV02=%u\n",
2416 	    __func__, vha->host_no, regions.global_image,
2417 	    regions.board_config, regions.vpd_nvram,
2418 	    regions.npiv_config_0_1, regions.npiv_config_2_3);
2419 
2420 	sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
2421 	    bsg_job->reply_payload.sg_cnt, &regions, sizeof(regions));
2422 
2423 	bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = EXT_STATUS_OK;
2424 	bsg_reply->reply_payload_rcv_len = sizeof(regions);
2425 	bsg_reply->result = DID_OK << 16;
2426 	bsg_job->reply_len = sizeof(struct fc_bsg_reply);
2427 	bsg_job_done(bsg_job, bsg_reply->result,
2428 	    bsg_reply->reply_payload_rcv_len);
2429 
2430 	return 0;
2431 }
2432 
2433 static int
2434 qla2x00_process_vendor_specific(struct bsg_job *bsg_job)
2435 {
2436 	struct fc_bsg_request *bsg_request = bsg_job->request;
2437 
2438 	switch (bsg_request->rqst_data.h_vendor.vendor_cmd[0]) {
2439 	case QL_VND_LOOPBACK:
2440 		return qla2x00_process_loopback(bsg_job);
2441 
2442 	case QL_VND_A84_RESET:
2443 		return qla84xx_reset(bsg_job);
2444 
2445 	case QL_VND_A84_UPDATE_FW:
2446 		return qla84xx_updatefw(bsg_job);
2447 
2448 	case QL_VND_A84_MGMT_CMD:
2449 		return qla84xx_mgmt_cmd(bsg_job);
2450 
2451 	case QL_VND_IIDMA:
2452 		return qla24xx_iidma(bsg_job);
2453 
2454 	case QL_VND_FCP_PRIO_CFG_CMD:
2455 		return qla24xx_proc_fcp_prio_cfg_cmd(bsg_job);
2456 
2457 	case QL_VND_READ_FLASH:
2458 		return qla2x00_read_optrom(bsg_job);
2459 
2460 	case QL_VND_UPDATE_FLASH:
2461 		return qla2x00_update_optrom(bsg_job);
2462 
2463 	case QL_VND_SET_FRU_VERSION:
2464 		return qla2x00_update_fru_versions(bsg_job);
2465 
2466 	case QL_VND_READ_FRU_STATUS:
2467 		return qla2x00_read_fru_status(bsg_job);
2468 
2469 	case QL_VND_WRITE_FRU_STATUS:
2470 		return qla2x00_write_fru_status(bsg_job);
2471 
2472 	case QL_VND_WRITE_I2C:
2473 		return qla2x00_write_i2c(bsg_job);
2474 
2475 	case QL_VND_READ_I2C:
2476 		return qla2x00_read_i2c(bsg_job);
2477 
2478 	case QL_VND_DIAG_IO_CMD:
2479 		return qla24xx_process_bidir_cmd(bsg_job);
2480 
2481 	case QL_VND_FX00_MGMT_CMD:
2482 		return qlafx00_mgmt_cmd(bsg_job);
2483 
2484 	case QL_VND_SERDES_OP:
2485 		return qla26xx_serdes_op(bsg_job);
2486 
2487 	case QL_VND_SERDES_OP_EX:
2488 		return qla8044_serdes_op(bsg_job);
2489 
2490 	case QL_VND_GET_FLASH_UPDATE_CAPS:
2491 		return qla27xx_get_flash_upd_cap(bsg_job);
2492 
2493 	case QL_VND_SET_FLASH_UPDATE_CAPS:
2494 		return qla27xx_set_flash_upd_cap(bsg_job);
2495 
2496 	case QL_VND_GET_BBCR_DATA:
2497 		return qla27xx_get_bbcr_data(bsg_job);
2498 
2499 	case QL_VND_GET_PRIV_STATS:
2500 	case QL_VND_GET_PRIV_STATS_EX:
2501 		return qla2x00_get_priv_stats(bsg_job);
2502 
2503 	case QL_VND_DPORT_DIAGNOSTICS:
2504 		return qla2x00_do_dport_diagnostics(bsg_job);
2505 
2506 	case QL_VND_SS_GET_FLASH_IMAGE_STATUS:
2507 		return qla2x00_get_flash_image_status(bsg_job);
2508 
2509 	default:
2510 		return -ENOSYS;
2511 	}
2512 }
2513 
2514 int
2515 qla24xx_bsg_request(struct bsg_job *bsg_job)
2516 {
2517 	struct fc_bsg_request *bsg_request = bsg_job->request;
2518 	struct fc_bsg_reply *bsg_reply = bsg_job->reply;
2519 	int ret = -EINVAL;
2520 	struct fc_rport *rport;
2521 	struct Scsi_Host *host;
2522 	scsi_qla_host_t *vha;
2523 
2524 	/* In case no data transferred. */
2525 	bsg_reply->reply_payload_rcv_len = 0;
2526 
2527 	if (bsg_request->msgcode == FC_BSG_RPT_ELS) {
2528 		rport = fc_bsg_to_rport(bsg_job);
2529 		host = rport_to_shost(rport);
2530 		vha = shost_priv(host);
2531 	} else {
2532 		host = fc_bsg_to_shost(bsg_job);
2533 		vha = shost_priv(host);
2534 	}
2535 
2536 	if (qla2x00_chip_is_down(vha)) {
2537 		ql_dbg(ql_dbg_user, vha, 0x709f,
2538 		    "BSG: ISP abort active/needed -- cmd=%d.\n",
2539 		    bsg_request->msgcode);
2540 		return -EBUSY;
2541 	}
2542 
2543 	ql_dbg(ql_dbg_user, vha, 0x7000,
2544 	    "Entered %s msgcode=0x%x.\n", __func__, bsg_request->msgcode);
2545 
2546 	switch (bsg_request->msgcode) {
2547 	case FC_BSG_RPT_ELS:
2548 	case FC_BSG_HST_ELS_NOLOGIN:
2549 		ret = qla2x00_process_els(bsg_job);
2550 		break;
2551 	case FC_BSG_HST_CT:
2552 		ret = qla2x00_process_ct(bsg_job);
2553 		break;
2554 	case FC_BSG_HST_VENDOR:
2555 		ret = qla2x00_process_vendor_specific(bsg_job);
2556 		break;
2557 	case FC_BSG_HST_ADD_RPORT:
2558 	case FC_BSG_HST_DEL_RPORT:
2559 	case FC_BSG_RPT_CT:
2560 	default:
2561 		ql_log(ql_log_warn, vha, 0x705a, "Unsupported BSG request.\n");
2562 		break;
2563 	}
2564 	return ret;
2565 }
2566 
2567 int
2568 qla24xx_bsg_timeout(struct bsg_job *bsg_job)
2569 {
2570 	struct fc_bsg_reply *bsg_reply = bsg_job->reply;
2571 	scsi_qla_host_t *vha = shost_priv(fc_bsg_to_shost(bsg_job));
2572 	struct qla_hw_data *ha = vha->hw;
2573 	srb_t *sp;
2574 	int cnt, que;
2575 	unsigned long flags;
2576 	struct req_que *req;
2577 
2578 	/* find the bsg job from the active list of commands */
2579 	spin_lock_irqsave(&ha->hardware_lock, flags);
2580 	for (que = 0; que < ha->max_req_queues; que++) {
2581 		req = ha->req_q_map[que];
2582 		if (!req)
2583 			continue;
2584 
2585 		for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++) {
2586 			sp = req->outstanding_cmds[cnt];
2587 			if (sp) {
2588 				if (((sp->type == SRB_CT_CMD) ||
2589 					(sp->type == SRB_ELS_CMD_HST) ||
2590 					(sp->type == SRB_FXIOCB_BCMD))
2591 					&& (sp->u.bsg_job == bsg_job)) {
2592 					req->outstanding_cmds[cnt] = NULL;
2593 					spin_unlock_irqrestore(&ha->hardware_lock, flags);
2594 					if (ha->isp_ops->abort_command(sp)) {
2595 						ql_log(ql_log_warn, vha, 0x7089,
2596 						    "mbx abort_command "
2597 						    "failed.\n");
2598 						bsg_reply->result = -EIO;
2599 					} else {
2600 						ql_dbg(ql_dbg_user, vha, 0x708a,
2601 						    "mbx abort_command "
2602 						    "success.\n");
2603 						bsg_reply->result = 0;
2604 					}
2605 					spin_lock_irqsave(&ha->hardware_lock, flags);
2606 					goto done;
2607 				}
2608 			}
2609 		}
2610 	}
2611 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
2612 	ql_log(ql_log_info, vha, 0x708b, "SRB not found to abort.\n");
2613 	bsg_reply->result = -ENXIO;
2614 	return 0;
2615 
2616 done:
2617 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
2618 	sp->free(sp);
2619 	return 0;
2620 }
2621