xref: /openbmc/linux/drivers/scsi/lpfc/lpfc_init.c (revision 15d90a6a)
1 /*******************************************************************
2  * This file is part of the Emulex Linux Device Driver for         *
3  * Fibre Channel Host Bus Adapters.                                *
4  * Copyright (C) 2017-2018 Broadcom. All Rights Reserved. The term *
5  * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.  *
6  * Copyright (C) 2004-2016 Emulex.  All rights reserved.           *
7  * EMULEX and SLI are trademarks of Emulex.                        *
8  * www.broadcom.com                                                *
9  * Portions Copyright (C) 2004-2005 Christoph Hellwig              *
10  *                                                                 *
11  * This program is free software; you can redistribute it and/or   *
12  * modify it under the terms of version 2 of the GNU General       *
13  * Public License as published by the Free Software Foundation.    *
14  * This program is distributed in the hope that it will be useful. *
15  * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND          *
16  * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,  *
17  * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE      *
18  * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
19  * TO BE LEGALLY INVALID.  See the GNU General Public License for  *
20  * more details, a copy of which can be found in the file COPYING  *
21  * included with this package.                                     *
22  *******************************************************************/
23 
24 #include <linux/blkdev.h>
25 #include <linux/delay.h>
26 #include <linux/dma-mapping.h>
27 #include <linux/idr.h>
28 #include <linux/interrupt.h>
29 #include <linux/module.h>
30 #include <linux/kthread.h>
31 #include <linux/pci.h>
32 #include <linux/spinlock.h>
33 #include <linux/ctype.h>
34 #include <linux/aer.h>
35 #include <linux/slab.h>
36 #include <linux/firmware.h>
37 #include <linux/miscdevice.h>
38 #include <linux/percpu.h>
39 #include <linux/msi.h>
40 #include <linux/bitops.h>
41 
42 #include <scsi/scsi.h>
43 #include <scsi/scsi_device.h>
44 #include <scsi/scsi_host.h>
45 #include <scsi/scsi_transport_fc.h>
46 #include <scsi/scsi_tcq.h>
47 #include <scsi/fc/fc_fs.h>
48 
49 #include <linux/nvme-fc-driver.h>
50 
51 #include "lpfc_hw4.h"
52 #include "lpfc_hw.h"
53 #include "lpfc_sli.h"
54 #include "lpfc_sli4.h"
55 #include "lpfc_nl.h"
56 #include "lpfc_disc.h"
57 #include "lpfc.h"
58 #include "lpfc_scsi.h"
59 #include "lpfc_nvme.h"
60 #include "lpfc_nvmet.h"
61 #include "lpfc_logmsg.h"
62 #include "lpfc_crtn.h"
63 #include "lpfc_vport.h"
64 #include "lpfc_version.h"
65 #include "lpfc_ids.h"
66 
67 char *_dump_buf_data;
68 unsigned long _dump_buf_data_order;
69 char *_dump_buf_dif;
70 unsigned long _dump_buf_dif_order;
71 spinlock_t _dump_buf_lock;
72 
73 /* Used when mapping IRQ vectors in a driver centric manner */
74 uint16_t *lpfc_used_cpu;
75 uint32_t lpfc_present_cpu;
76 
77 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
78 static int lpfc_post_rcv_buf(struct lpfc_hba *);
79 static int lpfc_sli4_queue_verify(struct lpfc_hba *);
80 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
81 static int lpfc_setup_endian_order(struct lpfc_hba *);
82 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
83 static void lpfc_free_els_sgl_list(struct lpfc_hba *);
84 static void lpfc_free_nvmet_sgl_list(struct lpfc_hba *);
85 static void lpfc_init_sgl_list(struct lpfc_hba *);
86 static int lpfc_init_active_sgl_array(struct lpfc_hba *);
87 static void lpfc_free_active_sgl(struct lpfc_hba *);
88 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
89 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
90 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
91 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
92 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
93 static void lpfc_sli4_disable_intr(struct lpfc_hba *);
94 static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t);
95 static void lpfc_sli4_oas_verify(struct lpfc_hba *phba);
96 
97 static struct scsi_transport_template *lpfc_transport_template = NULL;
98 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
99 static DEFINE_IDR(lpfc_hba_index);
100 #define LPFC_NVMET_BUF_POST 254
101 
102 /**
103  * lpfc_config_port_prep - Perform lpfc initialization prior to config port
104  * @phba: pointer to lpfc hba data structure.
105  *
106  * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
107  * mailbox command. It retrieves the revision information from the HBA and
108  * collects the Vital Product Data (VPD) about the HBA for preparing the
109  * configuration of the HBA.
110  *
111  * Return codes:
112  *   0 - success.
113  *   -ERESTART - requests the SLI layer to reset the HBA and try again.
114  *   Any other value - indicates an error.
115  **/
116 int
117 lpfc_config_port_prep(struct lpfc_hba *phba)
118 {
119 	lpfc_vpd_t *vp = &phba->vpd;
120 	int i = 0, rc;
121 	LPFC_MBOXQ_t *pmb;
122 	MAILBOX_t *mb;
123 	char *lpfc_vpd_data = NULL;
124 	uint16_t offset = 0;
125 	static char licensed[56] =
126 		    "key unlock for use with gnu public licensed code only\0";
127 	static int init_key = 1;
128 
129 	pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
130 	if (!pmb) {
131 		phba->link_state = LPFC_HBA_ERROR;
132 		return -ENOMEM;
133 	}
134 
135 	mb = &pmb->u.mb;
136 	phba->link_state = LPFC_INIT_MBX_CMDS;
137 
138 	if (lpfc_is_LC_HBA(phba->pcidev->device)) {
139 		if (init_key) {
140 			uint32_t *ptext = (uint32_t *) licensed;
141 
142 			for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
143 				*ptext = cpu_to_be32(*ptext);
144 			init_key = 0;
145 		}
146 
147 		lpfc_read_nv(phba, pmb);
148 		memset((char*)mb->un.varRDnvp.rsvd3, 0,
149 			sizeof (mb->un.varRDnvp.rsvd3));
150 		memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
151 			 sizeof (licensed));
152 
153 		rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
154 
155 		if (rc != MBX_SUCCESS) {
156 			lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
157 					"0324 Config Port initialization "
158 					"error, mbxCmd x%x READ_NVPARM, "
159 					"mbxStatus x%x\n",
160 					mb->mbxCommand, mb->mbxStatus);
161 			mempool_free(pmb, phba->mbox_mem_pool);
162 			return -ERESTART;
163 		}
164 		memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
165 		       sizeof(phba->wwnn));
166 		memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
167 		       sizeof(phba->wwpn));
168 	}
169 
170 	/*
171 	 * Clear all option bits except LPFC_SLI3_BG_ENABLED,
172 	 * which was already set in lpfc_get_cfgparam()
173 	 */
174 	phba->sli3_options &= (uint32_t)LPFC_SLI3_BG_ENABLED;
175 
176 	/* Setup and issue mailbox READ REV command */
177 	lpfc_read_rev(phba, pmb);
178 	rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
179 	if (rc != MBX_SUCCESS) {
180 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
181 				"0439 Adapter failed to init, mbxCmd x%x "
182 				"READ_REV, mbxStatus x%x\n",
183 				mb->mbxCommand, mb->mbxStatus);
184 		mempool_free( pmb, phba->mbox_mem_pool);
185 		return -ERESTART;
186 	}
187 
188 
189 	/*
190 	 * The value of rr must be 1 since the driver set the cv field to 1.
191 	 * This setting requires the FW to set all revision fields.
192 	 */
193 	if (mb->un.varRdRev.rr == 0) {
194 		vp->rev.rBit = 0;
195 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
196 				"0440 Adapter failed to init, READ_REV has "
197 				"missing revision information.\n");
198 		mempool_free(pmb, phba->mbox_mem_pool);
199 		return -ERESTART;
200 	}
201 
202 	if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
203 		mempool_free(pmb, phba->mbox_mem_pool);
204 		return -EINVAL;
205 	}
206 
207 	/* Save information as VPD data */
208 	vp->rev.rBit = 1;
209 	memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
210 	vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
211 	memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
212 	vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
213 	memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
214 	vp->rev.biuRev = mb->un.varRdRev.biuRev;
215 	vp->rev.smRev = mb->un.varRdRev.smRev;
216 	vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
217 	vp->rev.endecRev = mb->un.varRdRev.endecRev;
218 	vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
219 	vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
220 	vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
221 	vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
222 	vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
223 	vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
224 
225 	/* If the sli feature level is less then 9, we must
226 	 * tear down all RPIs and VPIs on link down if NPIV
227 	 * is enabled.
228 	 */
229 	if (vp->rev.feaLevelHigh < 9)
230 		phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
231 
232 	if (lpfc_is_LC_HBA(phba->pcidev->device))
233 		memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
234 						sizeof (phba->RandomData));
235 
236 	/* Get adapter VPD information */
237 	lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
238 	if (!lpfc_vpd_data)
239 		goto out_free_mbox;
240 	do {
241 		lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
242 		rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
243 
244 		if (rc != MBX_SUCCESS) {
245 			lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
246 					"0441 VPD not present on adapter, "
247 					"mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
248 					mb->mbxCommand, mb->mbxStatus);
249 			mb->un.varDmp.word_cnt = 0;
250 		}
251 		/* dump mem may return a zero when finished or we got a
252 		 * mailbox error, either way we are done.
253 		 */
254 		if (mb->un.varDmp.word_cnt == 0)
255 			break;
256 		if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
257 			mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
258 		lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
259 				      lpfc_vpd_data + offset,
260 				      mb->un.varDmp.word_cnt);
261 		offset += mb->un.varDmp.word_cnt;
262 	} while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
263 	lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
264 
265 	kfree(lpfc_vpd_data);
266 out_free_mbox:
267 	mempool_free(pmb, phba->mbox_mem_pool);
268 	return 0;
269 }
270 
271 /**
272  * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
273  * @phba: pointer to lpfc hba data structure.
274  * @pmboxq: pointer to the driver internal queue element for mailbox command.
275  *
276  * This is the completion handler for driver's configuring asynchronous event
277  * mailbox command to the device. If the mailbox command returns successfully,
278  * it will set internal async event support flag to 1; otherwise, it will
279  * set internal async event support flag to 0.
280  **/
281 static void
282 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
283 {
284 	if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
285 		phba->temp_sensor_support = 1;
286 	else
287 		phba->temp_sensor_support = 0;
288 	mempool_free(pmboxq, phba->mbox_mem_pool);
289 	return;
290 }
291 
292 /**
293  * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
294  * @phba: pointer to lpfc hba data structure.
295  * @pmboxq: pointer to the driver internal queue element for mailbox command.
296  *
297  * This is the completion handler for dump mailbox command for getting
298  * wake up parameters. When this command complete, the response contain
299  * Option rom version of the HBA. This function translate the version number
300  * into a human readable string and store it in OptionROMVersion.
301  **/
302 static void
303 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
304 {
305 	struct prog_id *prg;
306 	uint32_t prog_id_word;
307 	char dist = ' ';
308 	/* character array used for decoding dist type. */
309 	char dist_char[] = "nabx";
310 
311 	if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
312 		mempool_free(pmboxq, phba->mbox_mem_pool);
313 		return;
314 	}
315 
316 	prg = (struct prog_id *) &prog_id_word;
317 
318 	/* word 7 contain option rom version */
319 	prog_id_word = pmboxq->u.mb.un.varWords[7];
320 
321 	/* Decode the Option rom version word to a readable string */
322 	if (prg->dist < 4)
323 		dist = dist_char[prg->dist];
324 
325 	if ((prg->dist == 3) && (prg->num == 0))
326 		snprintf(phba->OptionROMVersion, 32, "%d.%d%d",
327 			prg->ver, prg->rev, prg->lev);
328 	else
329 		snprintf(phba->OptionROMVersion, 32, "%d.%d%d%c%d",
330 			prg->ver, prg->rev, prg->lev,
331 			dist, prg->num);
332 	mempool_free(pmboxq, phba->mbox_mem_pool);
333 	return;
334 }
335 
336 /**
337  * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
338  *	cfg_soft_wwnn, cfg_soft_wwpn
339  * @vport: pointer to lpfc vport data structure.
340  *
341  *
342  * Return codes
343  *   None.
344  **/
345 void
346 lpfc_update_vport_wwn(struct lpfc_vport *vport)
347 {
348 	uint8_t vvvl = vport->fc_sparam.cmn.valid_vendor_ver_level;
349 	u32 *fawwpn_key = (u32 *)&vport->fc_sparam.un.vendorVersion[0];
350 
351 	/* If the soft name exists then update it using the service params */
352 	if (vport->phba->cfg_soft_wwnn)
353 		u64_to_wwn(vport->phba->cfg_soft_wwnn,
354 			   vport->fc_sparam.nodeName.u.wwn);
355 	if (vport->phba->cfg_soft_wwpn)
356 		u64_to_wwn(vport->phba->cfg_soft_wwpn,
357 			   vport->fc_sparam.portName.u.wwn);
358 
359 	/*
360 	 * If the name is empty or there exists a soft name
361 	 * then copy the service params name, otherwise use the fc name
362 	 */
363 	if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
364 		memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
365 			sizeof(struct lpfc_name));
366 	else
367 		memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
368 			sizeof(struct lpfc_name));
369 
370 	/*
371 	 * If the port name has changed, then set the Param changes flag
372 	 * to unreg the login
373 	 */
374 	if (vport->fc_portname.u.wwn[0] != 0 &&
375 		memcmp(&vport->fc_portname, &vport->fc_sparam.portName,
376 			sizeof(struct lpfc_name)))
377 		vport->vport_flag |= FAWWPN_PARAM_CHG;
378 
379 	if (vport->fc_portname.u.wwn[0] == 0 ||
380 	    vport->phba->cfg_soft_wwpn ||
381 	    (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) ||
382 	    vport->vport_flag & FAWWPN_SET) {
383 		memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
384 			sizeof(struct lpfc_name));
385 		vport->vport_flag &= ~FAWWPN_SET;
386 		if (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR)
387 			vport->vport_flag |= FAWWPN_SET;
388 	}
389 	else
390 		memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
391 			sizeof(struct lpfc_name));
392 }
393 
394 /**
395  * lpfc_config_port_post - Perform lpfc initialization after config port
396  * @phba: pointer to lpfc hba data structure.
397  *
398  * This routine will do LPFC initialization after the CONFIG_PORT mailbox
399  * command call. It performs all internal resource and state setups on the
400  * port: post IOCB buffers, enable appropriate host interrupt attentions,
401  * ELS ring timers, etc.
402  *
403  * Return codes
404  *   0 - success.
405  *   Any other value - error.
406  **/
407 int
408 lpfc_config_port_post(struct lpfc_hba *phba)
409 {
410 	struct lpfc_vport *vport = phba->pport;
411 	struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
412 	LPFC_MBOXQ_t *pmb;
413 	MAILBOX_t *mb;
414 	struct lpfc_dmabuf *mp;
415 	struct lpfc_sli *psli = &phba->sli;
416 	uint32_t status, timeout;
417 	int i, j;
418 	int rc;
419 
420 	spin_lock_irq(&phba->hbalock);
421 	/*
422 	 * If the Config port completed correctly the HBA is not
423 	 * over heated any more.
424 	 */
425 	if (phba->over_temp_state == HBA_OVER_TEMP)
426 		phba->over_temp_state = HBA_NORMAL_TEMP;
427 	spin_unlock_irq(&phba->hbalock);
428 
429 	pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
430 	if (!pmb) {
431 		phba->link_state = LPFC_HBA_ERROR;
432 		return -ENOMEM;
433 	}
434 	mb = &pmb->u.mb;
435 
436 	/* Get login parameters for NID.  */
437 	rc = lpfc_read_sparam(phba, pmb, 0);
438 	if (rc) {
439 		mempool_free(pmb, phba->mbox_mem_pool);
440 		return -ENOMEM;
441 	}
442 
443 	pmb->vport = vport;
444 	if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
445 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
446 				"0448 Adapter failed init, mbxCmd x%x "
447 				"READ_SPARM mbxStatus x%x\n",
448 				mb->mbxCommand, mb->mbxStatus);
449 		phba->link_state = LPFC_HBA_ERROR;
450 		mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
451 		mempool_free(pmb, phba->mbox_mem_pool);
452 		lpfc_mbuf_free(phba, mp->virt, mp->phys);
453 		kfree(mp);
454 		return -EIO;
455 	}
456 
457 	mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
458 
459 	memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
460 	lpfc_mbuf_free(phba, mp->virt, mp->phys);
461 	kfree(mp);
462 	pmb->ctx_buf = NULL;
463 	lpfc_update_vport_wwn(vport);
464 
465 	/* Update the fc_host data structures with new wwn. */
466 	fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
467 	fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
468 	fc_host_max_npiv_vports(shost) = phba->max_vpi;
469 
470 	/* If no serial number in VPD data, use low 6 bytes of WWNN */
471 	/* This should be consolidated into parse_vpd ? - mr */
472 	if (phba->SerialNumber[0] == 0) {
473 		uint8_t *outptr;
474 
475 		outptr = &vport->fc_nodename.u.s.IEEE[0];
476 		for (i = 0; i < 12; i++) {
477 			status = *outptr++;
478 			j = ((status & 0xf0) >> 4);
479 			if (j <= 9)
480 				phba->SerialNumber[i] =
481 				    (char)((uint8_t) 0x30 + (uint8_t) j);
482 			else
483 				phba->SerialNumber[i] =
484 				    (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
485 			i++;
486 			j = (status & 0xf);
487 			if (j <= 9)
488 				phba->SerialNumber[i] =
489 				    (char)((uint8_t) 0x30 + (uint8_t) j);
490 			else
491 				phba->SerialNumber[i] =
492 				    (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
493 		}
494 	}
495 
496 	lpfc_read_config(phba, pmb);
497 	pmb->vport = vport;
498 	if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
499 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
500 				"0453 Adapter failed to init, mbxCmd x%x "
501 				"READ_CONFIG, mbxStatus x%x\n",
502 				mb->mbxCommand, mb->mbxStatus);
503 		phba->link_state = LPFC_HBA_ERROR;
504 		mempool_free( pmb, phba->mbox_mem_pool);
505 		return -EIO;
506 	}
507 
508 	/* Check if the port is disabled */
509 	lpfc_sli_read_link_ste(phba);
510 
511 	/* Reset the DFT_HBA_Q_DEPTH to the max xri  */
512 	i = (mb->un.varRdConfig.max_xri + 1);
513 	if (phba->cfg_hba_queue_depth > i) {
514 		lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
515 				"3359 HBA queue depth changed from %d to %d\n",
516 				phba->cfg_hba_queue_depth, i);
517 		phba->cfg_hba_queue_depth = i;
518 	}
519 
520 	/* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3)  */
521 	i = (mb->un.varRdConfig.max_xri >> 3);
522 	if (phba->pport->cfg_lun_queue_depth > i) {
523 		lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
524 				"3360 LUN queue depth changed from %d to %d\n",
525 				phba->pport->cfg_lun_queue_depth, i);
526 		phba->pport->cfg_lun_queue_depth = i;
527 	}
528 
529 	phba->lmt = mb->un.varRdConfig.lmt;
530 
531 	/* Get the default values for Model Name and Description */
532 	lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
533 
534 	phba->link_state = LPFC_LINK_DOWN;
535 
536 	/* Only process IOCBs on ELS ring till hba_state is READY */
537 	if (psli->sli3_ring[LPFC_EXTRA_RING].sli.sli3.cmdringaddr)
538 		psli->sli3_ring[LPFC_EXTRA_RING].flag |= LPFC_STOP_IOCB_EVENT;
539 	if (psli->sli3_ring[LPFC_FCP_RING].sli.sli3.cmdringaddr)
540 		psli->sli3_ring[LPFC_FCP_RING].flag |= LPFC_STOP_IOCB_EVENT;
541 
542 	/* Post receive buffers for desired rings */
543 	if (phba->sli_rev != 3)
544 		lpfc_post_rcv_buf(phba);
545 
546 	/*
547 	 * Configure HBA MSI-X attention conditions to messages if MSI-X mode
548 	 */
549 	if (phba->intr_type == MSIX) {
550 		rc = lpfc_config_msi(phba, pmb);
551 		if (rc) {
552 			mempool_free(pmb, phba->mbox_mem_pool);
553 			return -EIO;
554 		}
555 		rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
556 		if (rc != MBX_SUCCESS) {
557 			lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
558 					"0352 Config MSI mailbox command "
559 					"failed, mbxCmd x%x, mbxStatus x%x\n",
560 					pmb->u.mb.mbxCommand,
561 					pmb->u.mb.mbxStatus);
562 			mempool_free(pmb, phba->mbox_mem_pool);
563 			return -EIO;
564 		}
565 	}
566 
567 	spin_lock_irq(&phba->hbalock);
568 	/* Initialize ERATT handling flag */
569 	phba->hba_flag &= ~HBA_ERATT_HANDLED;
570 
571 	/* Enable appropriate host interrupts */
572 	if (lpfc_readl(phba->HCregaddr, &status)) {
573 		spin_unlock_irq(&phba->hbalock);
574 		return -EIO;
575 	}
576 	status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
577 	if (psli->num_rings > 0)
578 		status |= HC_R0INT_ENA;
579 	if (psli->num_rings > 1)
580 		status |= HC_R1INT_ENA;
581 	if (psli->num_rings > 2)
582 		status |= HC_R2INT_ENA;
583 	if (psli->num_rings > 3)
584 		status |= HC_R3INT_ENA;
585 
586 	if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
587 	    (phba->cfg_poll & DISABLE_FCP_RING_INT))
588 		status &= ~(HC_R0INT_ENA);
589 
590 	writel(status, phba->HCregaddr);
591 	readl(phba->HCregaddr); /* flush */
592 	spin_unlock_irq(&phba->hbalock);
593 
594 	/* Set up ring-0 (ELS) timer */
595 	timeout = phba->fc_ratov * 2;
596 	mod_timer(&vport->els_tmofunc,
597 		  jiffies + msecs_to_jiffies(1000 * timeout));
598 	/* Set up heart beat (HB) timer */
599 	mod_timer(&phba->hb_tmofunc,
600 		  jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
601 	phba->hb_outstanding = 0;
602 	phba->last_completion_time = jiffies;
603 	/* Set up error attention (ERATT) polling timer */
604 	mod_timer(&phba->eratt_poll,
605 		  jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval));
606 
607 	if (phba->hba_flag & LINK_DISABLED) {
608 		lpfc_printf_log(phba,
609 			KERN_ERR, LOG_INIT,
610 			"2598 Adapter Link is disabled.\n");
611 		lpfc_down_link(phba, pmb);
612 		pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
613 		rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
614 		if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
615 			lpfc_printf_log(phba,
616 			KERN_ERR, LOG_INIT,
617 			"2599 Adapter failed to issue DOWN_LINK"
618 			" mbox command rc 0x%x\n", rc);
619 
620 			mempool_free(pmb, phba->mbox_mem_pool);
621 			return -EIO;
622 		}
623 	} else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
624 		mempool_free(pmb, phba->mbox_mem_pool);
625 		rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
626 		if (rc)
627 			return rc;
628 	}
629 	/* MBOX buffer will be freed in mbox compl */
630 	pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
631 	if (!pmb) {
632 		phba->link_state = LPFC_HBA_ERROR;
633 		return -ENOMEM;
634 	}
635 
636 	lpfc_config_async(phba, pmb, LPFC_ELS_RING);
637 	pmb->mbox_cmpl = lpfc_config_async_cmpl;
638 	pmb->vport = phba->pport;
639 	rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
640 
641 	if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
642 		lpfc_printf_log(phba,
643 				KERN_ERR,
644 				LOG_INIT,
645 				"0456 Adapter failed to issue "
646 				"ASYNCEVT_ENABLE mbox status x%x\n",
647 				rc);
648 		mempool_free(pmb, phba->mbox_mem_pool);
649 	}
650 
651 	/* Get Option rom version */
652 	pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
653 	if (!pmb) {
654 		phba->link_state = LPFC_HBA_ERROR;
655 		return -ENOMEM;
656 	}
657 
658 	lpfc_dump_wakeup_param(phba, pmb);
659 	pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
660 	pmb->vport = phba->pport;
661 	rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
662 
663 	if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
664 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
665 				"to get Option ROM version status x%x\n", rc);
666 		mempool_free(pmb, phba->mbox_mem_pool);
667 	}
668 
669 	return 0;
670 }
671 
672 /**
673  * lpfc_hba_init_link - Initialize the FC link
674  * @phba: pointer to lpfc hba data structure.
675  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
676  *
677  * This routine will issue the INIT_LINK mailbox command call.
678  * It is available to other drivers through the lpfc_hba data
679  * structure for use as a delayed link up mechanism with the
680  * module parameter lpfc_suppress_link_up.
681  *
682  * Return code
683  *		0 - success
684  *		Any other value - error
685  **/
686 static int
687 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
688 {
689 	return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
690 }
691 
692 /**
693  * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
694  * @phba: pointer to lpfc hba data structure.
695  * @fc_topology: desired fc topology.
696  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
697  *
698  * This routine will issue the INIT_LINK mailbox command call.
699  * It is available to other drivers through the lpfc_hba data
700  * structure for use as a delayed link up mechanism with the
701  * module parameter lpfc_suppress_link_up.
702  *
703  * Return code
704  *              0 - success
705  *              Any other value - error
706  **/
707 int
708 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
709 			       uint32_t flag)
710 {
711 	struct lpfc_vport *vport = phba->pport;
712 	LPFC_MBOXQ_t *pmb;
713 	MAILBOX_t *mb;
714 	int rc;
715 
716 	pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
717 	if (!pmb) {
718 		phba->link_state = LPFC_HBA_ERROR;
719 		return -ENOMEM;
720 	}
721 	mb = &pmb->u.mb;
722 	pmb->vport = vport;
723 
724 	if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
725 	    ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
726 	     !(phba->lmt & LMT_1Gb)) ||
727 	    ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
728 	     !(phba->lmt & LMT_2Gb)) ||
729 	    ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
730 	     !(phba->lmt & LMT_4Gb)) ||
731 	    ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
732 	     !(phba->lmt & LMT_8Gb)) ||
733 	    ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
734 	     !(phba->lmt & LMT_10Gb)) ||
735 	    ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
736 	     !(phba->lmt & LMT_16Gb)) ||
737 	    ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_32G) &&
738 	     !(phba->lmt & LMT_32Gb)) ||
739 	    ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_64G) &&
740 	     !(phba->lmt & LMT_64Gb))) {
741 		/* Reset link speed to auto */
742 		lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
743 			"1302 Invalid speed for this board:%d "
744 			"Reset link speed to auto.\n",
745 			phba->cfg_link_speed);
746 			phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
747 	}
748 	lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
749 	pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
750 	if (phba->sli_rev < LPFC_SLI_REV4)
751 		lpfc_set_loopback_flag(phba);
752 	rc = lpfc_sli_issue_mbox(phba, pmb, flag);
753 	if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
754 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
755 			"0498 Adapter failed to init, mbxCmd x%x "
756 			"INIT_LINK, mbxStatus x%x\n",
757 			mb->mbxCommand, mb->mbxStatus);
758 		if (phba->sli_rev <= LPFC_SLI_REV3) {
759 			/* Clear all interrupt enable conditions */
760 			writel(0, phba->HCregaddr);
761 			readl(phba->HCregaddr); /* flush */
762 			/* Clear all pending interrupts */
763 			writel(0xffffffff, phba->HAregaddr);
764 			readl(phba->HAregaddr); /* flush */
765 		}
766 		phba->link_state = LPFC_HBA_ERROR;
767 		if (rc != MBX_BUSY || flag == MBX_POLL)
768 			mempool_free(pmb, phba->mbox_mem_pool);
769 		return -EIO;
770 	}
771 	phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
772 	if (flag == MBX_POLL)
773 		mempool_free(pmb, phba->mbox_mem_pool);
774 
775 	return 0;
776 }
777 
778 /**
779  * lpfc_hba_down_link - this routine downs the FC link
780  * @phba: pointer to lpfc hba data structure.
781  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
782  *
783  * This routine will issue the DOWN_LINK mailbox command call.
784  * It is available to other drivers through the lpfc_hba data
785  * structure for use to stop the link.
786  *
787  * Return code
788  *		0 - success
789  *		Any other value - error
790  **/
791 static int
792 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
793 {
794 	LPFC_MBOXQ_t *pmb;
795 	int rc;
796 
797 	pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
798 	if (!pmb) {
799 		phba->link_state = LPFC_HBA_ERROR;
800 		return -ENOMEM;
801 	}
802 
803 	lpfc_printf_log(phba,
804 		KERN_ERR, LOG_INIT,
805 		"0491 Adapter Link is disabled.\n");
806 	lpfc_down_link(phba, pmb);
807 	pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
808 	rc = lpfc_sli_issue_mbox(phba, pmb, flag);
809 	if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
810 		lpfc_printf_log(phba,
811 		KERN_ERR, LOG_INIT,
812 		"2522 Adapter failed to issue DOWN_LINK"
813 		" mbox command rc 0x%x\n", rc);
814 
815 		mempool_free(pmb, phba->mbox_mem_pool);
816 		return -EIO;
817 	}
818 	if (flag == MBX_POLL)
819 		mempool_free(pmb, phba->mbox_mem_pool);
820 
821 	return 0;
822 }
823 
824 /**
825  * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
826  * @phba: pointer to lpfc HBA data structure.
827  *
828  * This routine will do LPFC uninitialization before the HBA is reset when
829  * bringing down the SLI Layer.
830  *
831  * Return codes
832  *   0 - success.
833  *   Any other value - error.
834  **/
835 int
836 lpfc_hba_down_prep(struct lpfc_hba *phba)
837 {
838 	struct lpfc_vport **vports;
839 	int i;
840 
841 	if (phba->sli_rev <= LPFC_SLI_REV3) {
842 		/* Disable interrupts */
843 		writel(0, phba->HCregaddr);
844 		readl(phba->HCregaddr); /* flush */
845 	}
846 
847 	if (phba->pport->load_flag & FC_UNLOADING)
848 		lpfc_cleanup_discovery_resources(phba->pport);
849 	else {
850 		vports = lpfc_create_vport_work_array(phba);
851 		if (vports != NULL)
852 			for (i = 0; i <= phba->max_vports &&
853 				vports[i] != NULL; i++)
854 				lpfc_cleanup_discovery_resources(vports[i]);
855 		lpfc_destroy_vport_work_array(phba, vports);
856 	}
857 	return 0;
858 }
859 
860 /**
861  * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free
862  * rspiocb which got deferred
863  *
864  * @phba: pointer to lpfc HBA data structure.
865  *
866  * This routine will cleanup completed slow path events after HBA is reset
867  * when bringing down the SLI Layer.
868  *
869  *
870  * Return codes
871  *   void.
872  **/
873 static void
874 lpfc_sli4_free_sp_events(struct lpfc_hba *phba)
875 {
876 	struct lpfc_iocbq *rspiocbq;
877 	struct hbq_dmabuf *dmabuf;
878 	struct lpfc_cq_event *cq_event;
879 
880 	spin_lock_irq(&phba->hbalock);
881 	phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
882 	spin_unlock_irq(&phba->hbalock);
883 
884 	while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
885 		/* Get the response iocb from the head of work queue */
886 		spin_lock_irq(&phba->hbalock);
887 		list_remove_head(&phba->sli4_hba.sp_queue_event,
888 				 cq_event, struct lpfc_cq_event, list);
889 		spin_unlock_irq(&phba->hbalock);
890 
891 		switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
892 		case CQE_CODE_COMPL_WQE:
893 			rspiocbq = container_of(cq_event, struct lpfc_iocbq,
894 						 cq_event);
895 			lpfc_sli_release_iocbq(phba, rspiocbq);
896 			break;
897 		case CQE_CODE_RECEIVE:
898 		case CQE_CODE_RECEIVE_V1:
899 			dmabuf = container_of(cq_event, struct hbq_dmabuf,
900 					      cq_event);
901 			lpfc_in_buf_free(phba, &dmabuf->dbuf);
902 		}
903 	}
904 }
905 
906 /**
907  * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset
908  * @phba: pointer to lpfc HBA data structure.
909  *
910  * This routine will cleanup posted ELS buffers after the HBA is reset
911  * when bringing down the SLI Layer.
912  *
913  *
914  * Return codes
915  *   void.
916  **/
917 static void
918 lpfc_hba_free_post_buf(struct lpfc_hba *phba)
919 {
920 	struct lpfc_sli *psli = &phba->sli;
921 	struct lpfc_sli_ring *pring;
922 	struct lpfc_dmabuf *mp, *next_mp;
923 	LIST_HEAD(buflist);
924 	int count;
925 
926 	if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
927 		lpfc_sli_hbqbuf_free_all(phba);
928 	else {
929 		/* Cleanup preposted buffers on the ELS ring */
930 		pring = &psli->sli3_ring[LPFC_ELS_RING];
931 		spin_lock_irq(&phba->hbalock);
932 		list_splice_init(&pring->postbufq, &buflist);
933 		spin_unlock_irq(&phba->hbalock);
934 
935 		count = 0;
936 		list_for_each_entry_safe(mp, next_mp, &buflist, list) {
937 			list_del(&mp->list);
938 			count++;
939 			lpfc_mbuf_free(phba, mp->virt, mp->phys);
940 			kfree(mp);
941 		}
942 
943 		spin_lock_irq(&phba->hbalock);
944 		pring->postbufq_cnt -= count;
945 		spin_unlock_irq(&phba->hbalock);
946 	}
947 }
948 
949 /**
950  * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset
951  * @phba: pointer to lpfc HBA data structure.
952  *
953  * This routine will cleanup the txcmplq after the HBA is reset when bringing
954  * down the SLI Layer.
955  *
956  * Return codes
957  *   void
958  **/
959 static void
960 lpfc_hba_clean_txcmplq(struct lpfc_hba *phba)
961 {
962 	struct lpfc_sli *psli = &phba->sli;
963 	struct lpfc_queue *qp = NULL;
964 	struct lpfc_sli_ring *pring;
965 	LIST_HEAD(completions);
966 	int i;
967 	struct lpfc_iocbq *piocb, *next_iocb;
968 
969 	if (phba->sli_rev != LPFC_SLI_REV4) {
970 		for (i = 0; i < psli->num_rings; i++) {
971 			pring = &psli->sli3_ring[i];
972 			spin_lock_irq(&phba->hbalock);
973 			/* At this point in time the HBA is either reset or DOA
974 			 * Nothing should be on txcmplq as it will
975 			 * NEVER complete.
976 			 */
977 			list_splice_init(&pring->txcmplq, &completions);
978 			pring->txcmplq_cnt = 0;
979 			spin_unlock_irq(&phba->hbalock);
980 
981 			lpfc_sli_abort_iocb_ring(phba, pring);
982 		}
983 		/* Cancel all the IOCBs from the completions list */
984 		lpfc_sli_cancel_iocbs(phba, &completions,
985 				      IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
986 		return;
987 	}
988 	list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
989 		pring = qp->pring;
990 		if (!pring)
991 			continue;
992 		spin_lock_irq(&pring->ring_lock);
993 		list_for_each_entry_safe(piocb, next_iocb,
994 					 &pring->txcmplq, list)
995 			piocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
996 		list_splice_init(&pring->txcmplq, &completions);
997 		pring->txcmplq_cnt = 0;
998 		spin_unlock_irq(&pring->ring_lock);
999 		lpfc_sli_abort_iocb_ring(phba, pring);
1000 	}
1001 	/* Cancel all the IOCBs from the completions list */
1002 	lpfc_sli_cancel_iocbs(phba, &completions,
1003 			      IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
1004 }
1005 
1006 /**
1007  * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
1008 	int i;
1009  * @phba: pointer to lpfc HBA data structure.
1010  *
1011  * This routine will do uninitialization after the HBA is reset when bring
1012  * down the SLI Layer.
1013  *
1014  * Return codes
1015  *   0 - success.
1016  *   Any other value - error.
1017  **/
1018 static int
1019 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
1020 {
1021 	lpfc_hba_free_post_buf(phba);
1022 	lpfc_hba_clean_txcmplq(phba);
1023 	return 0;
1024 }
1025 
1026 /**
1027  * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
1028  * @phba: pointer to lpfc HBA data structure.
1029  *
1030  * This routine will do uninitialization after the HBA is reset when bring
1031  * down the SLI Layer.
1032  *
1033  * Return codes
1034  *   0 - success.
1035  *   Any other value - error.
1036  **/
1037 static int
1038 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
1039 {
1040 	struct lpfc_scsi_buf *psb, *psb_next;
1041 	struct lpfc_nvmet_rcv_ctx *ctxp, *ctxp_next;
1042 	LIST_HEAD(aborts);
1043 	LIST_HEAD(nvme_aborts);
1044 	LIST_HEAD(nvmet_aborts);
1045 	unsigned long iflag = 0;
1046 	struct lpfc_sglq *sglq_entry = NULL;
1047 	int cnt;
1048 
1049 
1050 	lpfc_sli_hbqbuf_free_all(phba);
1051 	lpfc_hba_clean_txcmplq(phba);
1052 
1053 	/* At this point in time the HBA is either reset or DOA. Either
1054 	 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
1055 	 * on the lpfc_els_sgl_list so that it can either be freed if the
1056 	 * driver is unloading or reposted if the driver is restarting
1057 	 * the port.
1058 	 */
1059 	spin_lock_irq(&phba->hbalock);  /* required for lpfc_els_sgl_list and */
1060 					/* scsl_buf_list */
1061 	/* sgl_list_lock required because worker thread uses this
1062 	 * list.
1063 	 */
1064 	spin_lock(&phba->sli4_hba.sgl_list_lock);
1065 	list_for_each_entry(sglq_entry,
1066 		&phba->sli4_hba.lpfc_abts_els_sgl_list, list)
1067 		sglq_entry->state = SGL_FREED;
1068 
1069 	list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
1070 			&phba->sli4_hba.lpfc_els_sgl_list);
1071 
1072 
1073 	spin_unlock(&phba->sli4_hba.sgl_list_lock);
1074 	/* abts_scsi_buf_list_lock required because worker thread uses this
1075 	 * list.
1076 	 */
1077 	if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
1078 		spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
1079 		list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
1080 				 &aborts);
1081 		spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
1082 	}
1083 
1084 	if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
1085 		spin_lock(&phba->sli4_hba.abts_nvme_buf_list_lock);
1086 		list_splice_init(&phba->sli4_hba.lpfc_abts_nvme_buf_list,
1087 				 &nvme_aborts);
1088 		list_splice_init(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list,
1089 				 &nvmet_aborts);
1090 		spin_unlock(&phba->sli4_hba.abts_nvme_buf_list_lock);
1091 	}
1092 
1093 	spin_unlock_irq(&phba->hbalock);
1094 
1095 	list_for_each_entry_safe(psb, psb_next, &aborts, list) {
1096 		psb->pCmd = NULL;
1097 		psb->status = IOSTAT_SUCCESS;
1098 	}
1099 	spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag);
1100 	list_splice(&aborts, &phba->lpfc_scsi_buf_list_put);
1101 	spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag);
1102 
1103 	if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
1104 		cnt = 0;
1105 		list_for_each_entry_safe(psb, psb_next, &nvme_aborts, list) {
1106 			psb->pCmd = NULL;
1107 			psb->status = IOSTAT_SUCCESS;
1108 			cnt++;
1109 		}
1110 		spin_lock_irqsave(&phba->nvme_buf_list_put_lock, iflag);
1111 		phba->put_nvme_bufs += cnt;
1112 		list_splice(&nvme_aborts, &phba->lpfc_nvme_buf_list_put);
1113 		spin_unlock_irqrestore(&phba->nvme_buf_list_put_lock, iflag);
1114 
1115 		list_for_each_entry_safe(ctxp, ctxp_next, &nvmet_aborts, list) {
1116 			ctxp->flag &= ~(LPFC_NVMET_XBUSY | LPFC_NVMET_ABORT_OP);
1117 			lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf);
1118 		}
1119 	}
1120 
1121 	lpfc_sli4_free_sp_events(phba);
1122 	return 0;
1123 }
1124 
1125 /**
1126  * lpfc_hba_down_post - Wrapper func for hba down post routine
1127  * @phba: pointer to lpfc HBA data structure.
1128  *
1129  * This routine wraps the actual SLI3 or SLI4 routine for performing
1130  * uninitialization after the HBA is reset when bring down the SLI Layer.
1131  *
1132  * Return codes
1133  *   0 - success.
1134  *   Any other value - error.
1135  **/
1136 int
1137 lpfc_hba_down_post(struct lpfc_hba *phba)
1138 {
1139 	return (*phba->lpfc_hba_down_post)(phba);
1140 }
1141 
1142 /**
1143  * lpfc_hb_timeout - The HBA-timer timeout handler
1144  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1145  *
1146  * This is the HBA-timer timeout handler registered to the lpfc driver. When
1147  * this timer fires, a HBA timeout event shall be posted to the lpfc driver
1148  * work-port-events bitmap and the worker thread is notified. This timeout
1149  * event will be used by the worker thread to invoke the actual timeout
1150  * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
1151  * be performed in the timeout handler and the HBA timeout event bit shall
1152  * be cleared by the worker thread after it has taken the event bitmap out.
1153  **/
1154 static void
1155 lpfc_hb_timeout(struct timer_list *t)
1156 {
1157 	struct lpfc_hba *phba;
1158 	uint32_t tmo_posted;
1159 	unsigned long iflag;
1160 
1161 	phba = from_timer(phba, t, hb_tmofunc);
1162 
1163 	/* Check for heart beat timeout conditions */
1164 	spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1165 	tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
1166 	if (!tmo_posted)
1167 		phba->pport->work_port_events |= WORKER_HB_TMO;
1168 	spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1169 
1170 	/* Tell the worker thread there is work to do */
1171 	if (!tmo_posted)
1172 		lpfc_worker_wake_up(phba);
1173 	return;
1174 }
1175 
1176 /**
1177  * lpfc_rrq_timeout - The RRQ-timer timeout handler
1178  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1179  *
1180  * This is the RRQ-timer timeout handler registered to the lpfc driver. When
1181  * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
1182  * work-port-events bitmap and the worker thread is notified. This timeout
1183  * event will be used by the worker thread to invoke the actual timeout
1184  * handler routine, lpfc_rrq_handler. Any periodical operations will
1185  * be performed in the timeout handler and the RRQ timeout event bit shall
1186  * be cleared by the worker thread after it has taken the event bitmap out.
1187  **/
1188 static void
1189 lpfc_rrq_timeout(struct timer_list *t)
1190 {
1191 	struct lpfc_hba *phba;
1192 	unsigned long iflag;
1193 
1194 	phba = from_timer(phba, t, rrq_tmr);
1195 	spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1196 	if (!(phba->pport->load_flag & FC_UNLOADING))
1197 		phba->hba_flag |= HBA_RRQ_ACTIVE;
1198 	else
1199 		phba->hba_flag &= ~HBA_RRQ_ACTIVE;
1200 	spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1201 
1202 	if (!(phba->pport->load_flag & FC_UNLOADING))
1203 		lpfc_worker_wake_up(phba);
1204 }
1205 
1206 /**
1207  * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
1208  * @phba: pointer to lpfc hba data structure.
1209  * @pmboxq: pointer to the driver internal queue element for mailbox command.
1210  *
1211  * This is the callback function to the lpfc heart-beat mailbox command.
1212  * If configured, the lpfc driver issues the heart-beat mailbox command to
1213  * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1214  * heart-beat mailbox command is issued, the driver shall set up heart-beat
1215  * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1216  * heart-beat outstanding state. Once the mailbox command comes back and
1217  * no error conditions detected, the heart-beat mailbox command timer is
1218  * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1219  * state is cleared for the next heart-beat. If the timer expired with the
1220  * heart-beat outstanding state set, the driver will put the HBA offline.
1221  **/
1222 static void
1223 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1224 {
1225 	unsigned long drvr_flag;
1226 
1227 	spin_lock_irqsave(&phba->hbalock, drvr_flag);
1228 	phba->hb_outstanding = 0;
1229 	spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1230 
1231 	/* Check and reset heart-beat timer is necessary */
1232 	mempool_free(pmboxq, phba->mbox_mem_pool);
1233 	if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1234 		!(phba->link_state == LPFC_HBA_ERROR) &&
1235 		!(phba->pport->load_flag & FC_UNLOADING))
1236 		mod_timer(&phba->hb_tmofunc,
1237 			  jiffies +
1238 			  msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1239 	return;
1240 }
1241 
1242 /**
1243  * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1244  * @phba: pointer to lpfc hba data structure.
1245  *
1246  * This is the actual HBA-timer timeout handler to be invoked by the worker
1247  * thread whenever the HBA timer fired and HBA-timeout event posted. This
1248  * handler performs any periodic operations needed for the device. If such
1249  * periodic event has already been attended to either in the interrupt handler
1250  * or by processing slow-ring or fast-ring events within the HBA-timer
1251  * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1252  * the timer for the next timeout period. If lpfc heart-beat mailbox command
1253  * is configured and there is no heart-beat mailbox command outstanding, a
1254  * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1255  * has been a heart-beat mailbox command outstanding, the HBA shall be put
1256  * to offline.
1257  **/
1258 void
1259 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1260 {
1261 	struct lpfc_vport **vports;
1262 	LPFC_MBOXQ_t *pmboxq;
1263 	struct lpfc_dmabuf *buf_ptr;
1264 	int retval, i;
1265 	struct lpfc_sli *psli = &phba->sli;
1266 	LIST_HEAD(completions);
1267 	struct lpfc_queue *qp;
1268 	unsigned long time_elapsed;
1269 	uint32_t tick_cqe, max_cqe, val;
1270 	uint64_t tot, data1, data2, data3;
1271 	struct lpfc_nvmet_tgtport *tgtp;
1272 	struct lpfc_register reg_data;
1273 	struct nvme_fc_local_port *localport;
1274 	struct lpfc_nvme_lport *lport;
1275 	struct lpfc_nvme_ctrl_stat *cstat;
1276 	void __iomem *eqdreg = phba->sli4_hba.u.if_type2.EQDregaddr;
1277 
1278 	vports = lpfc_create_vport_work_array(phba);
1279 	if (vports != NULL)
1280 		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
1281 			lpfc_rcv_seq_check_edtov(vports[i]);
1282 			lpfc_fdmi_num_disc_check(vports[i]);
1283 		}
1284 	lpfc_destroy_vport_work_array(phba, vports);
1285 
1286 	if ((phba->link_state == LPFC_HBA_ERROR) ||
1287 		(phba->pport->load_flag & FC_UNLOADING) ||
1288 		(phba->pport->fc_flag & FC_OFFLINE_MODE))
1289 		return;
1290 
1291 	if (phba->cfg_auto_imax) {
1292 		if (!phba->last_eqdelay_time) {
1293 			phba->last_eqdelay_time = jiffies;
1294 			goto skip_eqdelay;
1295 		}
1296 		time_elapsed = jiffies - phba->last_eqdelay_time;
1297 		phba->last_eqdelay_time = jiffies;
1298 
1299 		tot = 0xffff;
1300 		/* Check outstanding IO count */
1301 		if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
1302 			if (phba->nvmet_support) {
1303 				tgtp = phba->targetport->private;
1304 				/* Calculate outstanding IOs */
1305 				tot = atomic_read(&tgtp->rcv_fcp_cmd_drop);
1306 				tot += atomic_read(&tgtp->xmt_fcp_release);
1307 				tot = atomic_read(&tgtp->rcv_fcp_cmd_in) - tot;
1308 			} else {
1309 				localport = phba->pport->localport;
1310 				if (!localport || !localport->private)
1311 					goto skip_eqdelay;
1312 				lport = (struct lpfc_nvme_lport *)
1313 					localport->private;
1314 				tot = 0;
1315 				for (i = 0;
1316 					i < phba->cfg_nvme_io_channel; i++) {
1317 					cstat = &lport->cstat[i];
1318 					data1 = atomic_read(
1319 						&cstat->fc4NvmeInputRequests);
1320 					data2 = atomic_read(
1321 						&cstat->fc4NvmeOutputRequests);
1322 					data3 = atomic_read(
1323 						&cstat->fc4NvmeControlRequests);
1324 					tot += (data1 + data2 + data3);
1325 					tot -= atomic_read(
1326 						&cstat->fc4NvmeIoCmpls);
1327 				}
1328 			}
1329 		}
1330 
1331 		/* Interrupts per sec per EQ */
1332 		val = phba->cfg_fcp_imax / phba->io_channel_irqs;
1333 		tick_cqe = val / CONFIG_HZ; /* Per tick per EQ */
1334 
1335 		/* Assume 1 CQE/ISR, calc max CQEs allowed for time duration */
1336 		max_cqe = time_elapsed * tick_cqe;
1337 
1338 		for (i = 0; i < phba->io_channel_irqs; i++) {
1339 			/* Fast-path EQ */
1340 			qp = phba->sli4_hba.hba_eq[i];
1341 			if (!qp)
1342 				continue;
1343 
1344 			/* Use no EQ delay if we don't have many outstanding
1345 			 * IOs, or if we are only processing 1 CQE/ISR or less.
1346 			 * Otherwise, assume we can process up to lpfc_fcp_imax
1347 			 * interrupts per HBA.
1348 			 */
1349 			if (tot < LPFC_NODELAY_MAX_IO ||
1350 			    qp->EQ_cqe_cnt <= max_cqe)
1351 				val = 0;
1352 			else
1353 				val = phba->cfg_fcp_imax;
1354 
1355 			if (phba->sli.sli_flag & LPFC_SLI_USE_EQDR) {
1356 				/* Use EQ Delay Register method */
1357 
1358 				/* Convert for EQ Delay register */
1359 				if (val) {
1360 					/* First, interrupts per sec per EQ */
1361 					val = phba->cfg_fcp_imax /
1362 						phba->io_channel_irqs;
1363 
1364 					/* us delay between each interrupt */
1365 					val = LPFC_SEC_TO_USEC / val;
1366 				}
1367 				if (val != qp->q_mode) {
1368 					reg_data.word0 = 0;
1369 					bf_set(lpfc_sliport_eqdelay_id,
1370 					       &reg_data, qp->queue_id);
1371 					bf_set(lpfc_sliport_eqdelay_delay,
1372 					       &reg_data, val);
1373 					writel(reg_data.word0, eqdreg);
1374 				}
1375 			} else {
1376 				/* Use mbox command method */
1377 				if (val != qp->q_mode)
1378 					lpfc_modify_hba_eq_delay(phba, i,
1379 								 1, val);
1380 			}
1381 
1382 			/*
1383 			 * val is cfg_fcp_imax or 0 for mbox delay or us delay
1384 			 * between interrupts for EQDR.
1385 			 */
1386 			qp->q_mode = val;
1387 			qp->EQ_cqe_cnt = 0;
1388 		}
1389 	}
1390 
1391 skip_eqdelay:
1392 	spin_lock_irq(&phba->pport->work_port_lock);
1393 
1394 	if (time_after(phba->last_completion_time +
1395 			msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL),
1396 			jiffies)) {
1397 		spin_unlock_irq(&phba->pport->work_port_lock);
1398 		if (!phba->hb_outstanding)
1399 			mod_timer(&phba->hb_tmofunc,
1400 				jiffies +
1401 				msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1402 		else
1403 			mod_timer(&phba->hb_tmofunc,
1404 				jiffies +
1405 				msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1406 		return;
1407 	}
1408 	spin_unlock_irq(&phba->pport->work_port_lock);
1409 
1410 	if (phba->elsbuf_cnt &&
1411 		(phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1412 		spin_lock_irq(&phba->hbalock);
1413 		list_splice_init(&phba->elsbuf, &completions);
1414 		phba->elsbuf_cnt = 0;
1415 		phba->elsbuf_prev_cnt = 0;
1416 		spin_unlock_irq(&phba->hbalock);
1417 
1418 		while (!list_empty(&completions)) {
1419 			list_remove_head(&completions, buf_ptr,
1420 				struct lpfc_dmabuf, list);
1421 			lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1422 			kfree(buf_ptr);
1423 		}
1424 	}
1425 	phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1426 
1427 	/* If there is no heart beat outstanding, issue a heartbeat command */
1428 	if (phba->cfg_enable_hba_heartbeat) {
1429 		if (!phba->hb_outstanding) {
1430 			if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1431 				(list_empty(&psli->mboxq))) {
1432 				pmboxq = mempool_alloc(phba->mbox_mem_pool,
1433 							GFP_KERNEL);
1434 				if (!pmboxq) {
1435 					mod_timer(&phba->hb_tmofunc,
1436 						 jiffies +
1437 						 msecs_to_jiffies(1000 *
1438 						 LPFC_HB_MBOX_INTERVAL));
1439 					return;
1440 				}
1441 
1442 				lpfc_heart_beat(phba, pmboxq);
1443 				pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1444 				pmboxq->vport = phba->pport;
1445 				retval = lpfc_sli_issue_mbox(phba, pmboxq,
1446 						MBX_NOWAIT);
1447 
1448 				if (retval != MBX_BUSY &&
1449 					retval != MBX_SUCCESS) {
1450 					mempool_free(pmboxq,
1451 							phba->mbox_mem_pool);
1452 					mod_timer(&phba->hb_tmofunc,
1453 						jiffies +
1454 						msecs_to_jiffies(1000 *
1455 						LPFC_HB_MBOX_INTERVAL));
1456 					return;
1457 				}
1458 				phba->skipped_hb = 0;
1459 				phba->hb_outstanding = 1;
1460 			} else if (time_before_eq(phba->last_completion_time,
1461 					phba->skipped_hb)) {
1462 				lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1463 					"2857 Last completion time not "
1464 					" updated in %d ms\n",
1465 					jiffies_to_msecs(jiffies
1466 						 - phba->last_completion_time));
1467 			} else
1468 				phba->skipped_hb = jiffies;
1469 
1470 			mod_timer(&phba->hb_tmofunc,
1471 				 jiffies +
1472 				 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1473 			return;
1474 		} else {
1475 			/*
1476 			* If heart beat timeout called with hb_outstanding set
1477 			* we need to give the hb mailbox cmd a chance to
1478 			* complete or TMO.
1479 			*/
1480 			lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1481 					"0459 Adapter heartbeat still out"
1482 					"standing:last compl time was %d ms.\n",
1483 					jiffies_to_msecs(jiffies
1484 						 - phba->last_completion_time));
1485 			mod_timer(&phba->hb_tmofunc,
1486 				jiffies +
1487 				msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1488 		}
1489 	} else {
1490 			mod_timer(&phba->hb_tmofunc,
1491 				jiffies +
1492 				msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1493 	}
1494 }
1495 
1496 /**
1497  * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1498  * @phba: pointer to lpfc hba data structure.
1499  *
1500  * This routine is called to bring the HBA offline when HBA hardware error
1501  * other than Port Error 6 has been detected.
1502  **/
1503 static void
1504 lpfc_offline_eratt(struct lpfc_hba *phba)
1505 {
1506 	struct lpfc_sli   *psli = &phba->sli;
1507 
1508 	spin_lock_irq(&phba->hbalock);
1509 	psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1510 	spin_unlock_irq(&phba->hbalock);
1511 	lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1512 
1513 	lpfc_offline(phba);
1514 	lpfc_reset_barrier(phba);
1515 	spin_lock_irq(&phba->hbalock);
1516 	lpfc_sli_brdreset(phba);
1517 	spin_unlock_irq(&phba->hbalock);
1518 	lpfc_hba_down_post(phba);
1519 	lpfc_sli_brdready(phba, HS_MBRDY);
1520 	lpfc_unblock_mgmt_io(phba);
1521 	phba->link_state = LPFC_HBA_ERROR;
1522 	return;
1523 }
1524 
1525 /**
1526  * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1527  * @phba: pointer to lpfc hba data structure.
1528  *
1529  * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1530  * other than Port Error 6 has been detected.
1531  **/
1532 void
1533 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1534 {
1535 	spin_lock_irq(&phba->hbalock);
1536 	phba->link_state = LPFC_HBA_ERROR;
1537 	spin_unlock_irq(&phba->hbalock);
1538 
1539 	lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1540 	lpfc_offline(phba);
1541 	lpfc_hba_down_post(phba);
1542 	lpfc_unblock_mgmt_io(phba);
1543 }
1544 
1545 /**
1546  * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1547  * @phba: pointer to lpfc hba data structure.
1548  *
1549  * This routine is invoked to handle the deferred HBA hardware error
1550  * conditions. This type of error is indicated by HBA by setting ER1
1551  * and another ER bit in the host status register. The driver will
1552  * wait until the ER1 bit clears before handling the error condition.
1553  **/
1554 static void
1555 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1556 {
1557 	uint32_t old_host_status = phba->work_hs;
1558 	struct lpfc_sli *psli = &phba->sli;
1559 
1560 	/* If the pci channel is offline, ignore possible errors,
1561 	 * since we cannot communicate with the pci card anyway.
1562 	 */
1563 	if (pci_channel_offline(phba->pcidev)) {
1564 		spin_lock_irq(&phba->hbalock);
1565 		phba->hba_flag &= ~DEFER_ERATT;
1566 		spin_unlock_irq(&phba->hbalock);
1567 		return;
1568 	}
1569 
1570 	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1571 		"0479 Deferred Adapter Hardware Error "
1572 		"Data: x%x x%x x%x\n",
1573 		phba->work_hs,
1574 		phba->work_status[0], phba->work_status[1]);
1575 
1576 	spin_lock_irq(&phba->hbalock);
1577 	psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1578 	spin_unlock_irq(&phba->hbalock);
1579 
1580 
1581 	/*
1582 	 * Firmware stops when it triggred erratt. That could cause the I/Os
1583 	 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1584 	 * SCSI layer retry it after re-establishing link.
1585 	 */
1586 	lpfc_sli_abort_fcp_rings(phba);
1587 
1588 	/*
1589 	 * There was a firmware error. Take the hba offline and then
1590 	 * attempt to restart it.
1591 	 */
1592 	lpfc_offline_prep(phba, LPFC_MBX_WAIT);
1593 	lpfc_offline(phba);
1594 
1595 	/* Wait for the ER1 bit to clear.*/
1596 	while (phba->work_hs & HS_FFER1) {
1597 		msleep(100);
1598 		if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1599 			phba->work_hs = UNPLUG_ERR ;
1600 			break;
1601 		}
1602 		/* If driver is unloading let the worker thread continue */
1603 		if (phba->pport->load_flag & FC_UNLOADING) {
1604 			phba->work_hs = 0;
1605 			break;
1606 		}
1607 	}
1608 
1609 	/*
1610 	 * This is to ptrotect against a race condition in which
1611 	 * first write to the host attention register clear the
1612 	 * host status register.
1613 	 */
1614 	if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1615 		phba->work_hs = old_host_status & ~HS_FFER1;
1616 
1617 	spin_lock_irq(&phba->hbalock);
1618 	phba->hba_flag &= ~DEFER_ERATT;
1619 	spin_unlock_irq(&phba->hbalock);
1620 	phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1621 	phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1622 }
1623 
1624 static void
1625 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1626 {
1627 	struct lpfc_board_event_header board_event;
1628 	struct Scsi_Host *shost;
1629 
1630 	board_event.event_type = FC_REG_BOARD_EVENT;
1631 	board_event.subcategory = LPFC_EVENT_PORTINTERR;
1632 	shost = lpfc_shost_from_vport(phba->pport);
1633 	fc_host_post_vendor_event(shost, fc_get_event_number(),
1634 				  sizeof(board_event),
1635 				  (char *) &board_event,
1636 				  LPFC_NL_VENDOR_ID);
1637 }
1638 
1639 /**
1640  * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1641  * @phba: pointer to lpfc hba data structure.
1642  *
1643  * This routine is invoked to handle the following HBA hardware error
1644  * conditions:
1645  * 1 - HBA error attention interrupt
1646  * 2 - DMA ring index out of range
1647  * 3 - Mailbox command came back as unknown
1648  **/
1649 static void
1650 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1651 {
1652 	struct lpfc_vport *vport = phba->pport;
1653 	struct lpfc_sli   *psli = &phba->sli;
1654 	uint32_t event_data;
1655 	unsigned long temperature;
1656 	struct temp_event temp_event_data;
1657 	struct Scsi_Host  *shost;
1658 
1659 	/* If the pci channel is offline, ignore possible errors,
1660 	 * since we cannot communicate with the pci card anyway.
1661 	 */
1662 	if (pci_channel_offline(phba->pcidev)) {
1663 		spin_lock_irq(&phba->hbalock);
1664 		phba->hba_flag &= ~DEFER_ERATT;
1665 		spin_unlock_irq(&phba->hbalock);
1666 		return;
1667 	}
1668 
1669 	/* If resets are disabled then leave the HBA alone and return */
1670 	if (!phba->cfg_enable_hba_reset)
1671 		return;
1672 
1673 	/* Send an internal error event to mgmt application */
1674 	lpfc_board_errevt_to_mgmt(phba);
1675 
1676 	if (phba->hba_flag & DEFER_ERATT)
1677 		lpfc_handle_deferred_eratt(phba);
1678 
1679 	if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1680 		if (phba->work_hs & HS_FFER6)
1681 			/* Re-establishing Link */
1682 			lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1683 					"1301 Re-establishing Link "
1684 					"Data: x%x x%x x%x\n",
1685 					phba->work_hs, phba->work_status[0],
1686 					phba->work_status[1]);
1687 		if (phba->work_hs & HS_FFER8)
1688 			/* Device Zeroization */
1689 			lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1690 					"2861 Host Authentication device "
1691 					"zeroization Data:x%x x%x x%x\n",
1692 					phba->work_hs, phba->work_status[0],
1693 					phba->work_status[1]);
1694 
1695 		spin_lock_irq(&phba->hbalock);
1696 		psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1697 		spin_unlock_irq(&phba->hbalock);
1698 
1699 		/*
1700 		* Firmware stops when it triggled erratt with HS_FFER6.
1701 		* That could cause the I/Os dropped by the firmware.
1702 		* Error iocb (I/O) on txcmplq and let the SCSI layer
1703 		* retry it after re-establishing link.
1704 		*/
1705 		lpfc_sli_abort_fcp_rings(phba);
1706 
1707 		/*
1708 		 * There was a firmware error.  Take the hba offline and then
1709 		 * attempt to restart it.
1710 		 */
1711 		lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1712 		lpfc_offline(phba);
1713 		lpfc_sli_brdrestart(phba);
1714 		if (lpfc_online(phba) == 0) {	/* Initialize the HBA */
1715 			lpfc_unblock_mgmt_io(phba);
1716 			return;
1717 		}
1718 		lpfc_unblock_mgmt_io(phba);
1719 	} else if (phba->work_hs & HS_CRIT_TEMP) {
1720 		temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1721 		temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1722 		temp_event_data.event_code = LPFC_CRIT_TEMP;
1723 		temp_event_data.data = (uint32_t)temperature;
1724 
1725 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1726 				"0406 Adapter maximum temperature exceeded "
1727 				"(%ld), taking this port offline "
1728 				"Data: x%x x%x x%x\n",
1729 				temperature, phba->work_hs,
1730 				phba->work_status[0], phba->work_status[1]);
1731 
1732 		shost = lpfc_shost_from_vport(phba->pport);
1733 		fc_host_post_vendor_event(shost, fc_get_event_number(),
1734 					  sizeof(temp_event_data),
1735 					  (char *) &temp_event_data,
1736 					  SCSI_NL_VID_TYPE_PCI
1737 					  | PCI_VENDOR_ID_EMULEX);
1738 
1739 		spin_lock_irq(&phba->hbalock);
1740 		phba->over_temp_state = HBA_OVER_TEMP;
1741 		spin_unlock_irq(&phba->hbalock);
1742 		lpfc_offline_eratt(phba);
1743 
1744 	} else {
1745 		/* The if clause above forces this code path when the status
1746 		 * failure is a value other than FFER6. Do not call the offline
1747 		 * twice. This is the adapter hardware error path.
1748 		 */
1749 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1750 				"0457 Adapter Hardware Error "
1751 				"Data: x%x x%x x%x\n",
1752 				phba->work_hs,
1753 				phba->work_status[0], phba->work_status[1]);
1754 
1755 		event_data = FC_REG_DUMP_EVENT;
1756 		shost = lpfc_shost_from_vport(vport);
1757 		fc_host_post_vendor_event(shost, fc_get_event_number(),
1758 				sizeof(event_data), (char *) &event_data,
1759 				SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1760 
1761 		lpfc_offline_eratt(phba);
1762 	}
1763 	return;
1764 }
1765 
1766 /**
1767  * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1768  * @phba: pointer to lpfc hba data structure.
1769  * @mbx_action: flag for mailbox shutdown action.
1770  *
1771  * This routine is invoked to perform an SLI4 port PCI function reset in
1772  * response to port status register polling attention. It waits for port
1773  * status register (ERR, RDY, RN) bits before proceeding with function reset.
1774  * During this process, interrupt vectors are freed and later requested
1775  * for handling possible port resource change.
1776  **/
1777 static int
1778 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action,
1779 			    bool en_rn_msg)
1780 {
1781 	int rc;
1782 	uint32_t intr_mode;
1783 
1784 	if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
1785 	    LPFC_SLI_INTF_IF_TYPE_2) {
1786 		/*
1787 		 * On error status condition, driver need to wait for port
1788 		 * ready before performing reset.
1789 		 */
1790 		rc = lpfc_sli4_pdev_status_reg_wait(phba);
1791 		if (rc)
1792 			return rc;
1793 	}
1794 
1795 	/* need reset: attempt for port recovery */
1796 	if (en_rn_msg)
1797 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1798 				"2887 Reset Needed: Attempting Port "
1799 				"Recovery...\n");
1800 	lpfc_offline_prep(phba, mbx_action);
1801 	lpfc_offline(phba);
1802 	/* release interrupt for possible resource change */
1803 	lpfc_sli4_disable_intr(phba);
1804 	rc = lpfc_sli_brdrestart(phba);
1805 	if (rc) {
1806 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1807 				"6309 Failed to restart board\n");
1808 		return rc;
1809 	}
1810 	/* request and enable interrupt */
1811 	intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1812 	if (intr_mode == LPFC_INTR_ERROR) {
1813 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1814 				"3175 Failed to enable interrupt\n");
1815 		return -EIO;
1816 	}
1817 	phba->intr_mode = intr_mode;
1818 	rc = lpfc_online(phba);
1819 	if (rc == 0)
1820 		lpfc_unblock_mgmt_io(phba);
1821 
1822 	return rc;
1823 }
1824 
1825 /**
1826  * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1827  * @phba: pointer to lpfc hba data structure.
1828  *
1829  * This routine is invoked to handle the SLI4 HBA hardware error attention
1830  * conditions.
1831  **/
1832 static void
1833 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1834 {
1835 	struct lpfc_vport *vport = phba->pport;
1836 	uint32_t event_data;
1837 	struct Scsi_Host *shost;
1838 	uint32_t if_type;
1839 	struct lpfc_register portstat_reg = {0};
1840 	uint32_t reg_err1, reg_err2;
1841 	uint32_t uerrlo_reg, uemasklo_reg;
1842 	uint32_t smphr_port_status = 0, pci_rd_rc1, pci_rd_rc2;
1843 	bool en_rn_msg = true;
1844 	struct temp_event temp_event_data;
1845 	struct lpfc_register portsmphr_reg;
1846 	int rc, i;
1847 
1848 	/* If the pci channel is offline, ignore possible errors, since
1849 	 * we cannot communicate with the pci card anyway.
1850 	 */
1851 	if (pci_channel_offline(phba->pcidev))
1852 		return;
1853 
1854 	memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
1855 	if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1856 	switch (if_type) {
1857 	case LPFC_SLI_INTF_IF_TYPE_0:
1858 		pci_rd_rc1 = lpfc_readl(
1859 				phba->sli4_hba.u.if_type0.UERRLOregaddr,
1860 				&uerrlo_reg);
1861 		pci_rd_rc2 = lpfc_readl(
1862 				phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
1863 				&uemasklo_reg);
1864 		/* consider PCI bus read error as pci_channel_offline */
1865 		if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
1866 			return;
1867 		if (!(phba->hba_flag & HBA_RECOVERABLE_UE)) {
1868 			lpfc_sli4_offline_eratt(phba);
1869 			return;
1870 		}
1871 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1872 				"7623 Checking UE recoverable");
1873 
1874 		for (i = 0; i < phba->sli4_hba.ue_to_sr / 1000; i++) {
1875 			if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
1876 				       &portsmphr_reg.word0))
1877 				continue;
1878 
1879 			smphr_port_status = bf_get(lpfc_port_smphr_port_status,
1880 						   &portsmphr_reg);
1881 			if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
1882 			    LPFC_PORT_SEM_UE_RECOVERABLE)
1883 				break;
1884 			/*Sleep for 1Sec, before checking SEMAPHORE */
1885 			msleep(1000);
1886 		}
1887 
1888 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1889 				"4827 smphr_port_status x%x : Waited %dSec",
1890 				smphr_port_status, i);
1891 
1892 		/* Recoverable UE, reset the HBA device */
1893 		if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
1894 		    LPFC_PORT_SEM_UE_RECOVERABLE) {
1895 			for (i = 0; i < 20; i++) {
1896 				msleep(1000);
1897 				if (!lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
1898 				    &portsmphr_reg.word0) &&
1899 				    (LPFC_POST_STAGE_PORT_READY ==
1900 				     bf_get(lpfc_port_smphr_port_status,
1901 				     &portsmphr_reg))) {
1902 					rc = lpfc_sli4_port_sta_fn_reset(phba,
1903 						LPFC_MBX_NO_WAIT, en_rn_msg);
1904 					if (rc == 0)
1905 						return;
1906 					lpfc_printf_log(phba,
1907 						KERN_ERR, LOG_INIT,
1908 						"4215 Failed to recover UE");
1909 					break;
1910 				}
1911 			}
1912 		}
1913 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1914 				"7624 Firmware not ready: Failing UE recovery,"
1915 				" waited %dSec", i);
1916 		lpfc_sli4_offline_eratt(phba);
1917 		break;
1918 
1919 	case LPFC_SLI_INTF_IF_TYPE_2:
1920 	case LPFC_SLI_INTF_IF_TYPE_6:
1921 		pci_rd_rc1 = lpfc_readl(
1922 				phba->sli4_hba.u.if_type2.STATUSregaddr,
1923 				&portstat_reg.word0);
1924 		/* consider PCI bus read error as pci_channel_offline */
1925 		if (pci_rd_rc1 == -EIO) {
1926 			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1927 				"3151 PCI bus read access failure: x%x\n",
1928 				readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
1929 			return;
1930 		}
1931 		reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
1932 		reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
1933 		if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1934 			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1935 				"2889 Port Overtemperature event, "
1936 				"taking port offline Data: x%x x%x\n",
1937 				reg_err1, reg_err2);
1938 
1939 			phba->sfp_alarm |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
1940 			temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1941 			temp_event_data.event_code = LPFC_CRIT_TEMP;
1942 			temp_event_data.data = 0xFFFFFFFF;
1943 
1944 			shost = lpfc_shost_from_vport(phba->pport);
1945 			fc_host_post_vendor_event(shost, fc_get_event_number(),
1946 						  sizeof(temp_event_data),
1947 						  (char *)&temp_event_data,
1948 						  SCSI_NL_VID_TYPE_PCI
1949 						  | PCI_VENDOR_ID_EMULEX);
1950 
1951 			spin_lock_irq(&phba->hbalock);
1952 			phba->over_temp_state = HBA_OVER_TEMP;
1953 			spin_unlock_irq(&phba->hbalock);
1954 			lpfc_sli4_offline_eratt(phba);
1955 			return;
1956 		}
1957 		if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1958 		    reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) {
1959 			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1960 					"3143 Port Down: Firmware Update "
1961 					"Detected\n");
1962 			en_rn_msg = false;
1963 		} else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1964 			 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1965 			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1966 					"3144 Port Down: Debug Dump\n");
1967 		else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1968 			 reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
1969 			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1970 					"3145 Port Down: Provisioning\n");
1971 
1972 		/* If resets are disabled then leave the HBA alone and return */
1973 		if (!phba->cfg_enable_hba_reset)
1974 			return;
1975 
1976 		/* Check port status register for function reset */
1977 		rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT,
1978 				en_rn_msg);
1979 		if (rc == 0) {
1980 			/* don't report event on forced debug dump */
1981 			if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1982 			    reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1983 				return;
1984 			else
1985 				break;
1986 		}
1987 		/* fall through for not able to recover */
1988 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1989 				"3152 Unrecoverable error, bring the port "
1990 				"offline\n");
1991 		lpfc_sli4_offline_eratt(phba);
1992 		break;
1993 	case LPFC_SLI_INTF_IF_TYPE_1:
1994 	default:
1995 		break;
1996 	}
1997 	lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1998 			"3123 Report dump event to upper layer\n");
1999 	/* Send an internal error event to mgmt application */
2000 	lpfc_board_errevt_to_mgmt(phba);
2001 
2002 	event_data = FC_REG_DUMP_EVENT;
2003 	shost = lpfc_shost_from_vport(vport);
2004 	fc_host_post_vendor_event(shost, fc_get_event_number(),
2005 				  sizeof(event_data), (char *) &event_data,
2006 				  SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
2007 }
2008 
2009 /**
2010  * lpfc_handle_eratt - Wrapper func for handling hba error attention
2011  * @phba: pointer to lpfc HBA data structure.
2012  *
2013  * This routine wraps the actual SLI3 or SLI4 hba error attention handling
2014  * routine from the API jump table function pointer from the lpfc_hba struct.
2015  *
2016  * Return codes
2017  *   0 - success.
2018  *   Any other value - error.
2019  **/
2020 void
2021 lpfc_handle_eratt(struct lpfc_hba *phba)
2022 {
2023 	(*phba->lpfc_handle_eratt)(phba);
2024 }
2025 
2026 /**
2027  * lpfc_handle_latt - The HBA link event handler
2028  * @phba: pointer to lpfc hba data structure.
2029  *
2030  * This routine is invoked from the worker thread to handle a HBA host
2031  * attention link event. SLI3 only.
2032  **/
2033 void
2034 lpfc_handle_latt(struct lpfc_hba *phba)
2035 {
2036 	struct lpfc_vport *vport = phba->pport;
2037 	struct lpfc_sli   *psli = &phba->sli;
2038 	LPFC_MBOXQ_t *pmb;
2039 	volatile uint32_t control;
2040 	struct lpfc_dmabuf *mp;
2041 	int rc = 0;
2042 
2043 	pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2044 	if (!pmb) {
2045 		rc = 1;
2046 		goto lpfc_handle_latt_err_exit;
2047 	}
2048 
2049 	mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
2050 	if (!mp) {
2051 		rc = 2;
2052 		goto lpfc_handle_latt_free_pmb;
2053 	}
2054 
2055 	mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
2056 	if (!mp->virt) {
2057 		rc = 3;
2058 		goto lpfc_handle_latt_free_mp;
2059 	}
2060 
2061 	/* Cleanup any outstanding ELS commands */
2062 	lpfc_els_flush_all_cmd(phba);
2063 
2064 	psli->slistat.link_event++;
2065 	lpfc_read_topology(phba, pmb, mp);
2066 	pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
2067 	pmb->vport = vport;
2068 	/* Block ELS IOCBs until we have processed this mbox command */
2069 	phba->sli.sli3_ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
2070 	rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
2071 	if (rc == MBX_NOT_FINISHED) {
2072 		rc = 4;
2073 		goto lpfc_handle_latt_free_mbuf;
2074 	}
2075 
2076 	/* Clear Link Attention in HA REG */
2077 	spin_lock_irq(&phba->hbalock);
2078 	writel(HA_LATT, phba->HAregaddr);
2079 	readl(phba->HAregaddr); /* flush */
2080 	spin_unlock_irq(&phba->hbalock);
2081 
2082 	return;
2083 
2084 lpfc_handle_latt_free_mbuf:
2085 	phba->sli.sli3_ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
2086 	lpfc_mbuf_free(phba, mp->virt, mp->phys);
2087 lpfc_handle_latt_free_mp:
2088 	kfree(mp);
2089 lpfc_handle_latt_free_pmb:
2090 	mempool_free(pmb, phba->mbox_mem_pool);
2091 lpfc_handle_latt_err_exit:
2092 	/* Enable Link attention interrupts */
2093 	spin_lock_irq(&phba->hbalock);
2094 	psli->sli_flag |= LPFC_PROCESS_LA;
2095 	control = readl(phba->HCregaddr);
2096 	control |= HC_LAINT_ENA;
2097 	writel(control, phba->HCregaddr);
2098 	readl(phba->HCregaddr); /* flush */
2099 
2100 	/* Clear Link Attention in HA REG */
2101 	writel(HA_LATT, phba->HAregaddr);
2102 	readl(phba->HAregaddr); /* flush */
2103 	spin_unlock_irq(&phba->hbalock);
2104 	lpfc_linkdown(phba);
2105 	phba->link_state = LPFC_HBA_ERROR;
2106 
2107 	lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
2108 		     "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
2109 
2110 	return;
2111 }
2112 
2113 /**
2114  * lpfc_parse_vpd - Parse VPD (Vital Product Data)
2115  * @phba: pointer to lpfc hba data structure.
2116  * @vpd: pointer to the vital product data.
2117  * @len: length of the vital product data in bytes.
2118  *
2119  * This routine parses the Vital Product Data (VPD). The VPD is treated as
2120  * an array of characters. In this routine, the ModelName, ProgramType, and
2121  * ModelDesc, etc. fields of the phba data structure will be populated.
2122  *
2123  * Return codes
2124  *   0 - pointer to the VPD passed in is NULL
2125  *   1 - success
2126  **/
2127 int
2128 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
2129 {
2130 	uint8_t lenlo, lenhi;
2131 	int Length;
2132 	int i, j;
2133 	int finished = 0;
2134 	int index = 0;
2135 
2136 	if (!vpd)
2137 		return 0;
2138 
2139 	/* Vital Product */
2140 	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2141 			"0455 Vital Product Data: x%x x%x x%x x%x\n",
2142 			(uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
2143 			(uint32_t) vpd[3]);
2144 	while (!finished && (index < (len - 4))) {
2145 		switch (vpd[index]) {
2146 		case 0x82:
2147 		case 0x91:
2148 			index += 1;
2149 			lenlo = vpd[index];
2150 			index += 1;
2151 			lenhi = vpd[index];
2152 			index += 1;
2153 			i = ((((unsigned short)lenhi) << 8) + lenlo);
2154 			index += i;
2155 			break;
2156 		case 0x90:
2157 			index += 1;
2158 			lenlo = vpd[index];
2159 			index += 1;
2160 			lenhi = vpd[index];
2161 			index += 1;
2162 			Length = ((((unsigned short)lenhi) << 8) + lenlo);
2163 			if (Length > len - index)
2164 				Length = len - index;
2165 			while (Length > 0) {
2166 			/* Look for Serial Number */
2167 			if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
2168 				index += 2;
2169 				i = vpd[index];
2170 				index += 1;
2171 				j = 0;
2172 				Length -= (3+i);
2173 				while(i--) {
2174 					phba->SerialNumber[j++] = vpd[index++];
2175 					if (j == 31)
2176 						break;
2177 				}
2178 				phba->SerialNumber[j] = 0;
2179 				continue;
2180 			}
2181 			else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
2182 				phba->vpd_flag |= VPD_MODEL_DESC;
2183 				index += 2;
2184 				i = vpd[index];
2185 				index += 1;
2186 				j = 0;
2187 				Length -= (3+i);
2188 				while(i--) {
2189 					phba->ModelDesc[j++] = vpd[index++];
2190 					if (j == 255)
2191 						break;
2192 				}
2193 				phba->ModelDesc[j] = 0;
2194 				continue;
2195 			}
2196 			else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
2197 				phba->vpd_flag |= VPD_MODEL_NAME;
2198 				index += 2;
2199 				i = vpd[index];
2200 				index += 1;
2201 				j = 0;
2202 				Length -= (3+i);
2203 				while(i--) {
2204 					phba->ModelName[j++] = vpd[index++];
2205 					if (j == 79)
2206 						break;
2207 				}
2208 				phba->ModelName[j] = 0;
2209 				continue;
2210 			}
2211 			else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
2212 				phba->vpd_flag |= VPD_PROGRAM_TYPE;
2213 				index += 2;
2214 				i = vpd[index];
2215 				index += 1;
2216 				j = 0;
2217 				Length -= (3+i);
2218 				while(i--) {
2219 					phba->ProgramType[j++] = vpd[index++];
2220 					if (j == 255)
2221 						break;
2222 				}
2223 				phba->ProgramType[j] = 0;
2224 				continue;
2225 			}
2226 			else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
2227 				phba->vpd_flag |= VPD_PORT;
2228 				index += 2;
2229 				i = vpd[index];
2230 				index += 1;
2231 				j = 0;
2232 				Length -= (3+i);
2233 				while(i--) {
2234 					if ((phba->sli_rev == LPFC_SLI_REV4) &&
2235 					    (phba->sli4_hba.pport_name_sta ==
2236 					     LPFC_SLI4_PPNAME_GET)) {
2237 						j++;
2238 						index++;
2239 					} else
2240 						phba->Port[j++] = vpd[index++];
2241 					if (j == 19)
2242 						break;
2243 				}
2244 				if ((phba->sli_rev != LPFC_SLI_REV4) ||
2245 				    (phba->sli4_hba.pport_name_sta ==
2246 				     LPFC_SLI4_PPNAME_NON))
2247 					phba->Port[j] = 0;
2248 				continue;
2249 			}
2250 			else {
2251 				index += 2;
2252 				i = vpd[index];
2253 				index += 1;
2254 				index += i;
2255 				Length -= (3 + i);
2256 			}
2257 		}
2258 		finished = 0;
2259 		break;
2260 		case 0x78:
2261 			finished = 1;
2262 			break;
2263 		default:
2264 			index ++;
2265 			break;
2266 		}
2267 	}
2268 
2269 	return(1);
2270 }
2271 
2272 /**
2273  * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
2274  * @phba: pointer to lpfc hba data structure.
2275  * @mdp: pointer to the data structure to hold the derived model name.
2276  * @descp: pointer to the data structure to hold the derived description.
2277  *
2278  * This routine retrieves HBA's description based on its registered PCI device
2279  * ID. The @descp passed into this function points to an array of 256 chars. It
2280  * shall be returned with the model name, maximum speed, and the host bus type.
2281  * The @mdp passed into this function points to an array of 80 chars. When the
2282  * function returns, the @mdp will be filled with the model name.
2283  **/
2284 static void
2285 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
2286 {
2287 	lpfc_vpd_t *vp;
2288 	uint16_t dev_id = phba->pcidev->device;
2289 	int max_speed;
2290 	int GE = 0;
2291 	int oneConnect = 0; /* default is not a oneConnect */
2292 	struct {
2293 		char *name;
2294 		char *bus;
2295 		char *function;
2296 	} m = {"<Unknown>", "", ""};
2297 
2298 	if (mdp && mdp[0] != '\0'
2299 		&& descp && descp[0] != '\0')
2300 		return;
2301 
2302 	if (phba->lmt & LMT_64Gb)
2303 		max_speed = 64;
2304 	else if (phba->lmt & LMT_32Gb)
2305 		max_speed = 32;
2306 	else if (phba->lmt & LMT_16Gb)
2307 		max_speed = 16;
2308 	else if (phba->lmt & LMT_10Gb)
2309 		max_speed = 10;
2310 	else if (phba->lmt & LMT_8Gb)
2311 		max_speed = 8;
2312 	else if (phba->lmt & LMT_4Gb)
2313 		max_speed = 4;
2314 	else if (phba->lmt & LMT_2Gb)
2315 		max_speed = 2;
2316 	else if (phba->lmt & LMT_1Gb)
2317 		max_speed = 1;
2318 	else
2319 		max_speed = 0;
2320 
2321 	vp = &phba->vpd;
2322 
2323 	switch (dev_id) {
2324 	case PCI_DEVICE_ID_FIREFLY:
2325 		m = (typeof(m)){"LP6000", "PCI",
2326 				"Obsolete, Unsupported Fibre Channel Adapter"};
2327 		break;
2328 	case PCI_DEVICE_ID_SUPERFLY:
2329 		if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
2330 			m = (typeof(m)){"LP7000", "PCI", ""};
2331 		else
2332 			m = (typeof(m)){"LP7000E", "PCI", ""};
2333 		m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2334 		break;
2335 	case PCI_DEVICE_ID_DRAGONFLY:
2336 		m = (typeof(m)){"LP8000", "PCI",
2337 				"Obsolete, Unsupported Fibre Channel Adapter"};
2338 		break;
2339 	case PCI_DEVICE_ID_CENTAUR:
2340 		if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
2341 			m = (typeof(m)){"LP9002", "PCI", ""};
2342 		else
2343 			m = (typeof(m)){"LP9000", "PCI", ""};
2344 		m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2345 		break;
2346 	case PCI_DEVICE_ID_RFLY:
2347 		m = (typeof(m)){"LP952", "PCI",
2348 				"Obsolete, Unsupported Fibre Channel Adapter"};
2349 		break;
2350 	case PCI_DEVICE_ID_PEGASUS:
2351 		m = (typeof(m)){"LP9802", "PCI-X",
2352 				"Obsolete, Unsupported Fibre Channel Adapter"};
2353 		break;
2354 	case PCI_DEVICE_ID_THOR:
2355 		m = (typeof(m)){"LP10000", "PCI-X",
2356 				"Obsolete, Unsupported Fibre Channel Adapter"};
2357 		break;
2358 	case PCI_DEVICE_ID_VIPER:
2359 		m = (typeof(m)){"LPX1000",  "PCI-X",
2360 				"Obsolete, Unsupported Fibre Channel Adapter"};
2361 		break;
2362 	case PCI_DEVICE_ID_PFLY:
2363 		m = (typeof(m)){"LP982", "PCI-X",
2364 				"Obsolete, Unsupported Fibre Channel Adapter"};
2365 		break;
2366 	case PCI_DEVICE_ID_TFLY:
2367 		m = (typeof(m)){"LP1050", "PCI-X",
2368 				"Obsolete, Unsupported Fibre Channel Adapter"};
2369 		break;
2370 	case PCI_DEVICE_ID_HELIOS:
2371 		m = (typeof(m)){"LP11000", "PCI-X2",
2372 				"Obsolete, Unsupported Fibre Channel Adapter"};
2373 		break;
2374 	case PCI_DEVICE_ID_HELIOS_SCSP:
2375 		m = (typeof(m)){"LP11000-SP", "PCI-X2",
2376 				"Obsolete, Unsupported Fibre Channel Adapter"};
2377 		break;
2378 	case PCI_DEVICE_ID_HELIOS_DCSP:
2379 		m = (typeof(m)){"LP11002-SP",  "PCI-X2",
2380 				"Obsolete, Unsupported Fibre Channel Adapter"};
2381 		break;
2382 	case PCI_DEVICE_ID_NEPTUNE:
2383 		m = (typeof(m)){"LPe1000", "PCIe",
2384 				"Obsolete, Unsupported Fibre Channel Adapter"};
2385 		break;
2386 	case PCI_DEVICE_ID_NEPTUNE_SCSP:
2387 		m = (typeof(m)){"LPe1000-SP", "PCIe",
2388 				"Obsolete, Unsupported Fibre Channel Adapter"};
2389 		break;
2390 	case PCI_DEVICE_ID_NEPTUNE_DCSP:
2391 		m = (typeof(m)){"LPe1002-SP", "PCIe",
2392 				"Obsolete, Unsupported Fibre Channel Adapter"};
2393 		break;
2394 	case PCI_DEVICE_ID_BMID:
2395 		m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
2396 		break;
2397 	case PCI_DEVICE_ID_BSMB:
2398 		m = (typeof(m)){"LP111", "PCI-X2",
2399 				"Obsolete, Unsupported Fibre Channel Adapter"};
2400 		break;
2401 	case PCI_DEVICE_ID_ZEPHYR:
2402 		m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2403 		break;
2404 	case PCI_DEVICE_ID_ZEPHYR_SCSP:
2405 		m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2406 		break;
2407 	case PCI_DEVICE_ID_ZEPHYR_DCSP:
2408 		m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
2409 		GE = 1;
2410 		break;
2411 	case PCI_DEVICE_ID_ZMID:
2412 		m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
2413 		break;
2414 	case PCI_DEVICE_ID_ZSMB:
2415 		m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
2416 		break;
2417 	case PCI_DEVICE_ID_LP101:
2418 		m = (typeof(m)){"LP101", "PCI-X",
2419 				"Obsolete, Unsupported Fibre Channel Adapter"};
2420 		break;
2421 	case PCI_DEVICE_ID_LP10000S:
2422 		m = (typeof(m)){"LP10000-S", "PCI",
2423 				"Obsolete, Unsupported Fibre Channel Adapter"};
2424 		break;
2425 	case PCI_DEVICE_ID_LP11000S:
2426 		m = (typeof(m)){"LP11000-S", "PCI-X2",
2427 				"Obsolete, Unsupported Fibre Channel Adapter"};
2428 		break;
2429 	case PCI_DEVICE_ID_LPE11000S:
2430 		m = (typeof(m)){"LPe11000-S", "PCIe",
2431 				"Obsolete, Unsupported Fibre Channel Adapter"};
2432 		break;
2433 	case PCI_DEVICE_ID_SAT:
2434 		m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2435 		break;
2436 	case PCI_DEVICE_ID_SAT_MID:
2437 		m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2438 		break;
2439 	case PCI_DEVICE_ID_SAT_SMB:
2440 		m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2441 		break;
2442 	case PCI_DEVICE_ID_SAT_DCSP:
2443 		m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2444 		break;
2445 	case PCI_DEVICE_ID_SAT_SCSP:
2446 		m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2447 		break;
2448 	case PCI_DEVICE_ID_SAT_S:
2449 		m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2450 		break;
2451 	case PCI_DEVICE_ID_HORNET:
2452 		m = (typeof(m)){"LP21000", "PCIe",
2453 				"Obsolete, Unsupported FCoE Adapter"};
2454 		GE = 1;
2455 		break;
2456 	case PCI_DEVICE_ID_PROTEUS_VF:
2457 		m = (typeof(m)){"LPev12000", "PCIe IOV",
2458 				"Obsolete, Unsupported Fibre Channel Adapter"};
2459 		break;
2460 	case PCI_DEVICE_ID_PROTEUS_PF:
2461 		m = (typeof(m)){"LPev12000", "PCIe IOV",
2462 				"Obsolete, Unsupported Fibre Channel Adapter"};
2463 		break;
2464 	case PCI_DEVICE_ID_PROTEUS_S:
2465 		m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2466 				"Obsolete, Unsupported Fibre Channel Adapter"};
2467 		break;
2468 	case PCI_DEVICE_ID_TIGERSHARK:
2469 		oneConnect = 1;
2470 		m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2471 		break;
2472 	case PCI_DEVICE_ID_TOMCAT:
2473 		oneConnect = 1;
2474 		m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2475 		break;
2476 	case PCI_DEVICE_ID_FALCON:
2477 		m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2478 				"EmulexSecure Fibre"};
2479 		break;
2480 	case PCI_DEVICE_ID_BALIUS:
2481 		m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2482 				"Obsolete, Unsupported Fibre Channel Adapter"};
2483 		break;
2484 	case PCI_DEVICE_ID_LANCER_FC:
2485 		m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2486 		break;
2487 	case PCI_DEVICE_ID_LANCER_FC_VF:
2488 		m = (typeof(m)){"LPe16000", "PCIe",
2489 				"Obsolete, Unsupported Fibre Channel Adapter"};
2490 		break;
2491 	case PCI_DEVICE_ID_LANCER_FCOE:
2492 		oneConnect = 1;
2493 		m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2494 		break;
2495 	case PCI_DEVICE_ID_LANCER_FCOE_VF:
2496 		oneConnect = 1;
2497 		m = (typeof(m)){"OCe15100", "PCIe",
2498 				"Obsolete, Unsupported FCoE"};
2499 		break;
2500 	case PCI_DEVICE_ID_LANCER_G6_FC:
2501 		m = (typeof(m)){"LPe32000", "PCIe", "Fibre Channel Adapter"};
2502 		break;
2503 	case PCI_DEVICE_ID_LANCER_G7_FC:
2504 		m = (typeof(m)){"LPe36000", "PCIe", "Fibre Channel Adapter"};
2505 		break;
2506 	case PCI_DEVICE_ID_SKYHAWK:
2507 	case PCI_DEVICE_ID_SKYHAWK_VF:
2508 		oneConnect = 1;
2509 		m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2510 		break;
2511 	default:
2512 		m = (typeof(m)){"Unknown", "", ""};
2513 		break;
2514 	}
2515 
2516 	if (mdp && mdp[0] == '\0')
2517 		snprintf(mdp, 79,"%s", m.name);
2518 	/*
2519 	 * oneConnect hba requires special processing, they are all initiators
2520 	 * and we put the port number on the end
2521 	 */
2522 	if (descp && descp[0] == '\0') {
2523 		if (oneConnect)
2524 			snprintf(descp, 255,
2525 				"Emulex OneConnect %s, %s Initiator %s",
2526 				m.name, m.function,
2527 				phba->Port);
2528 		else if (max_speed == 0)
2529 			snprintf(descp, 255,
2530 				"Emulex %s %s %s",
2531 				m.name, m.bus, m.function);
2532 		else
2533 			snprintf(descp, 255,
2534 				"Emulex %s %d%s %s %s",
2535 				m.name, max_speed, (GE) ? "GE" : "Gb",
2536 				m.bus, m.function);
2537 	}
2538 }
2539 
2540 /**
2541  * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2542  * @phba: pointer to lpfc hba data structure.
2543  * @pring: pointer to a IOCB ring.
2544  * @cnt: the number of IOCBs to be posted to the IOCB ring.
2545  *
2546  * This routine posts a given number of IOCBs with the associated DMA buffer
2547  * descriptors specified by the cnt argument to the given IOCB ring.
2548  *
2549  * Return codes
2550  *   The number of IOCBs NOT able to be posted to the IOCB ring.
2551  **/
2552 int
2553 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2554 {
2555 	IOCB_t *icmd;
2556 	struct lpfc_iocbq *iocb;
2557 	struct lpfc_dmabuf *mp1, *mp2;
2558 
2559 	cnt += pring->missbufcnt;
2560 
2561 	/* While there are buffers to post */
2562 	while (cnt > 0) {
2563 		/* Allocate buffer for  command iocb */
2564 		iocb = lpfc_sli_get_iocbq(phba);
2565 		if (iocb == NULL) {
2566 			pring->missbufcnt = cnt;
2567 			return cnt;
2568 		}
2569 		icmd = &iocb->iocb;
2570 
2571 		/* 2 buffers can be posted per command */
2572 		/* Allocate buffer to post */
2573 		mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2574 		if (mp1)
2575 		    mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2576 		if (!mp1 || !mp1->virt) {
2577 			kfree(mp1);
2578 			lpfc_sli_release_iocbq(phba, iocb);
2579 			pring->missbufcnt = cnt;
2580 			return cnt;
2581 		}
2582 
2583 		INIT_LIST_HEAD(&mp1->list);
2584 		/* Allocate buffer to post */
2585 		if (cnt > 1) {
2586 			mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2587 			if (mp2)
2588 				mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2589 							    &mp2->phys);
2590 			if (!mp2 || !mp2->virt) {
2591 				kfree(mp2);
2592 				lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2593 				kfree(mp1);
2594 				lpfc_sli_release_iocbq(phba, iocb);
2595 				pring->missbufcnt = cnt;
2596 				return cnt;
2597 			}
2598 
2599 			INIT_LIST_HEAD(&mp2->list);
2600 		} else {
2601 			mp2 = NULL;
2602 		}
2603 
2604 		icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2605 		icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2606 		icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2607 		icmd->ulpBdeCount = 1;
2608 		cnt--;
2609 		if (mp2) {
2610 			icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2611 			icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2612 			icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2613 			cnt--;
2614 			icmd->ulpBdeCount = 2;
2615 		}
2616 
2617 		icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2618 		icmd->ulpLe = 1;
2619 
2620 		if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2621 		    IOCB_ERROR) {
2622 			lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2623 			kfree(mp1);
2624 			cnt++;
2625 			if (mp2) {
2626 				lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2627 				kfree(mp2);
2628 				cnt++;
2629 			}
2630 			lpfc_sli_release_iocbq(phba, iocb);
2631 			pring->missbufcnt = cnt;
2632 			return cnt;
2633 		}
2634 		lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2635 		if (mp2)
2636 			lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2637 	}
2638 	pring->missbufcnt = 0;
2639 	return 0;
2640 }
2641 
2642 /**
2643  * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2644  * @phba: pointer to lpfc hba data structure.
2645  *
2646  * This routine posts initial receive IOCB buffers to the ELS ring. The
2647  * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2648  * set to 64 IOCBs. SLI3 only.
2649  *
2650  * Return codes
2651  *   0 - success (currently always success)
2652  **/
2653 static int
2654 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2655 {
2656 	struct lpfc_sli *psli = &phba->sli;
2657 
2658 	/* Ring 0, ELS / CT buffers */
2659 	lpfc_post_buffer(phba, &psli->sli3_ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2660 	/* Ring 2 - FCP no buffers needed */
2661 
2662 	return 0;
2663 }
2664 
2665 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2666 
2667 /**
2668  * lpfc_sha_init - Set up initial array of hash table entries
2669  * @HashResultPointer: pointer to an array as hash table.
2670  *
2671  * This routine sets up the initial values to the array of hash table entries
2672  * for the LC HBAs.
2673  **/
2674 static void
2675 lpfc_sha_init(uint32_t * HashResultPointer)
2676 {
2677 	HashResultPointer[0] = 0x67452301;
2678 	HashResultPointer[1] = 0xEFCDAB89;
2679 	HashResultPointer[2] = 0x98BADCFE;
2680 	HashResultPointer[3] = 0x10325476;
2681 	HashResultPointer[4] = 0xC3D2E1F0;
2682 }
2683 
2684 /**
2685  * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2686  * @HashResultPointer: pointer to an initial/result hash table.
2687  * @HashWorkingPointer: pointer to an working hash table.
2688  *
2689  * This routine iterates an initial hash table pointed by @HashResultPointer
2690  * with the values from the working hash table pointeed by @HashWorkingPointer.
2691  * The results are putting back to the initial hash table, returned through
2692  * the @HashResultPointer as the result hash table.
2693  **/
2694 static void
2695 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2696 {
2697 	int t;
2698 	uint32_t TEMP;
2699 	uint32_t A, B, C, D, E;
2700 	t = 16;
2701 	do {
2702 		HashWorkingPointer[t] =
2703 		    S(1,
2704 		      HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2705 								     8] ^
2706 		      HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2707 	} while (++t <= 79);
2708 	t = 0;
2709 	A = HashResultPointer[0];
2710 	B = HashResultPointer[1];
2711 	C = HashResultPointer[2];
2712 	D = HashResultPointer[3];
2713 	E = HashResultPointer[4];
2714 
2715 	do {
2716 		if (t < 20) {
2717 			TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2718 		} else if (t < 40) {
2719 			TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2720 		} else if (t < 60) {
2721 			TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2722 		} else {
2723 			TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2724 		}
2725 		TEMP += S(5, A) + E + HashWorkingPointer[t];
2726 		E = D;
2727 		D = C;
2728 		C = S(30, B);
2729 		B = A;
2730 		A = TEMP;
2731 	} while (++t <= 79);
2732 
2733 	HashResultPointer[0] += A;
2734 	HashResultPointer[1] += B;
2735 	HashResultPointer[2] += C;
2736 	HashResultPointer[3] += D;
2737 	HashResultPointer[4] += E;
2738 
2739 }
2740 
2741 /**
2742  * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2743  * @RandomChallenge: pointer to the entry of host challenge random number array.
2744  * @HashWorking: pointer to the entry of the working hash array.
2745  *
2746  * This routine calculates the working hash array referred by @HashWorking
2747  * from the challenge random numbers associated with the host, referred by
2748  * @RandomChallenge. The result is put into the entry of the working hash
2749  * array and returned by reference through @HashWorking.
2750  **/
2751 static void
2752 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2753 {
2754 	*HashWorking = (*RandomChallenge ^ *HashWorking);
2755 }
2756 
2757 /**
2758  * lpfc_hba_init - Perform special handling for LC HBA initialization
2759  * @phba: pointer to lpfc hba data structure.
2760  * @hbainit: pointer to an array of unsigned 32-bit integers.
2761  *
2762  * This routine performs the special handling for LC HBA initialization.
2763  **/
2764 void
2765 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2766 {
2767 	int t;
2768 	uint32_t *HashWorking;
2769 	uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2770 
2771 	HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2772 	if (!HashWorking)
2773 		return;
2774 
2775 	HashWorking[0] = HashWorking[78] = *pwwnn++;
2776 	HashWorking[1] = HashWorking[79] = *pwwnn;
2777 
2778 	for (t = 0; t < 7; t++)
2779 		lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2780 
2781 	lpfc_sha_init(hbainit);
2782 	lpfc_sha_iterate(hbainit, HashWorking);
2783 	kfree(HashWorking);
2784 }
2785 
2786 /**
2787  * lpfc_cleanup - Performs vport cleanups before deleting a vport
2788  * @vport: pointer to a virtual N_Port data structure.
2789  *
2790  * This routine performs the necessary cleanups before deleting the @vport.
2791  * It invokes the discovery state machine to perform necessary state
2792  * transitions and to release the ndlps associated with the @vport. Note,
2793  * the physical port is treated as @vport 0.
2794  **/
2795 void
2796 lpfc_cleanup(struct lpfc_vport *vport)
2797 {
2798 	struct lpfc_hba   *phba = vport->phba;
2799 	struct lpfc_nodelist *ndlp, *next_ndlp;
2800 	int i = 0;
2801 
2802 	if (phba->link_state > LPFC_LINK_DOWN)
2803 		lpfc_port_link_failure(vport);
2804 
2805 	list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2806 		if (!NLP_CHK_NODE_ACT(ndlp)) {
2807 			ndlp = lpfc_enable_node(vport, ndlp,
2808 						NLP_STE_UNUSED_NODE);
2809 			if (!ndlp)
2810 				continue;
2811 			spin_lock_irq(&phba->ndlp_lock);
2812 			NLP_SET_FREE_REQ(ndlp);
2813 			spin_unlock_irq(&phba->ndlp_lock);
2814 			/* Trigger the release of the ndlp memory */
2815 			lpfc_nlp_put(ndlp);
2816 			continue;
2817 		}
2818 		spin_lock_irq(&phba->ndlp_lock);
2819 		if (NLP_CHK_FREE_REQ(ndlp)) {
2820 			/* The ndlp should not be in memory free mode already */
2821 			spin_unlock_irq(&phba->ndlp_lock);
2822 			continue;
2823 		} else
2824 			/* Indicate request for freeing ndlp memory */
2825 			NLP_SET_FREE_REQ(ndlp);
2826 		spin_unlock_irq(&phba->ndlp_lock);
2827 
2828 		if (vport->port_type != LPFC_PHYSICAL_PORT &&
2829 		    ndlp->nlp_DID == Fabric_DID) {
2830 			/* Just free up ndlp with Fabric_DID for vports */
2831 			lpfc_nlp_put(ndlp);
2832 			continue;
2833 		}
2834 
2835 		/* take care of nodes in unused state before the state
2836 		 * machine taking action.
2837 		 */
2838 		if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
2839 			lpfc_nlp_put(ndlp);
2840 			continue;
2841 		}
2842 
2843 		if (ndlp->nlp_type & NLP_FABRIC)
2844 			lpfc_disc_state_machine(vport, ndlp, NULL,
2845 					NLP_EVT_DEVICE_RECOVERY);
2846 
2847 		lpfc_disc_state_machine(vport, ndlp, NULL,
2848 					     NLP_EVT_DEVICE_RM);
2849 	}
2850 
2851 	/* At this point, ALL ndlp's should be gone
2852 	 * because of the previous NLP_EVT_DEVICE_RM.
2853 	 * Lets wait for this to happen, if needed.
2854 	 */
2855 	while (!list_empty(&vport->fc_nodes)) {
2856 		if (i++ > 3000) {
2857 			lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2858 				"0233 Nodelist not empty\n");
2859 			list_for_each_entry_safe(ndlp, next_ndlp,
2860 						&vport->fc_nodes, nlp_listp) {
2861 				lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2862 						LOG_NODE,
2863 						"0282 did:x%x ndlp:x%p "
2864 						"usgmap:x%x refcnt:%d\n",
2865 						ndlp->nlp_DID, (void *)ndlp,
2866 						ndlp->nlp_usg_map,
2867 						kref_read(&ndlp->kref));
2868 			}
2869 			break;
2870 		}
2871 
2872 		/* Wait for any activity on ndlps to settle */
2873 		msleep(10);
2874 	}
2875 	lpfc_cleanup_vports_rrqs(vport, NULL);
2876 }
2877 
2878 /**
2879  * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2880  * @vport: pointer to a virtual N_Port data structure.
2881  *
2882  * This routine stops all the timers associated with a @vport. This function
2883  * is invoked before disabling or deleting a @vport. Note that the physical
2884  * port is treated as @vport 0.
2885  **/
2886 void
2887 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2888 {
2889 	del_timer_sync(&vport->els_tmofunc);
2890 	del_timer_sync(&vport->delayed_disc_tmo);
2891 	lpfc_can_disctmo(vport);
2892 	return;
2893 }
2894 
2895 /**
2896  * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2897  * @phba: pointer to lpfc hba data structure.
2898  *
2899  * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2900  * caller of this routine should already hold the host lock.
2901  **/
2902 void
2903 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2904 {
2905 	/* Clear pending FCF rediscovery wait flag */
2906 	phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2907 
2908 	/* Now, try to stop the timer */
2909 	del_timer(&phba->fcf.redisc_wait);
2910 }
2911 
2912 /**
2913  * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2914  * @phba: pointer to lpfc hba data structure.
2915  *
2916  * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2917  * checks whether the FCF rediscovery wait timer is pending with the host
2918  * lock held before proceeding with disabling the timer and clearing the
2919  * wait timer pendig flag.
2920  **/
2921 void
2922 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2923 {
2924 	spin_lock_irq(&phba->hbalock);
2925 	if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2926 		/* FCF rediscovery timer already fired or stopped */
2927 		spin_unlock_irq(&phba->hbalock);
2928 		return;
2929 	}
2930 	__lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2931 	/* Clear failover in progress flags */
2932 	phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2933 	spin_unlock_irq(&phba->hbalock);
2934 }
2935 
2936 /**
2937  * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2938  * @phba: pointer to lpfc hba data structure.
2939  *
2940  * This routine stops all the timers associated with a HBA. This function is
2941  * invoked before either putting a HBA offline or unloading the driver.
2942  **/
2943 void
2944 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2945 {
2946 	lpfc_stop_vport_timers(phba->pport);
2947 	del_timer_sync(&phba->sli.mbox_tmo);
2948 	del_timer_sync(&phba->fabric_block_timer);
2949 	del_timer_sync(&phba->eratt_poll);
2950 	del_timer_sync(&phba->hb_tmofunc);
2951 	if (phba->sli_rev == LPFC_SLI_REV4) {
2952 		del_timer_sync(&phba->rrq_tmr);
2953 		phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2954 	}
2955 	phba->hb_outstanding = 0;
2956 
2957 	switch (phba->pci_dev_grp) {
2958 	case LPFC_PCI_DEV_LP:
2959 		/* Stop any LightPulse device specific driver timers */
2960 		del_timer_sync(&phba->fcp_poll_timer);
2961 		break;
2962 	case LPFC_PCI_DEV_OC:
2963 		/* Stop any OneConnect device sepcific driver timers */
2964 		lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2965 		break;
2966 	default:
2967 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2968 				"0297 Invalid device group (x%x)\n",
2969 				phba->pci_dev_grp);
2970 		break;
2971 	}
2972 	return;
2973 }
2974 
2975 /**
2976  * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2977  * @phba: pointer to lpfc hba data structure.
2978  *
2979  * This routine marks a HBA's management interface as blocked. Once the HBA's
2980  * management interface is marked as blocked, all the user space access to
2981  * the HBA, whether they are from sysfs interface or libdfc interface will
2982  * all be blocked. The HBA is set to block the management interface when the
2983  * driver prepares the HBA interface for online or offline.
2984  **/
2985 static void
2986 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
2987 {
2988 	unsigned long iflag;
2989 	uint8_t actcmd = MBX_HEARTBEAT;
2990 	unsigned long timeout;
2991 
2992 	spin_lock_irqsave(&phba->hbalock, iflag);
2993 	phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2994 	spin_unlock_irqrestore(&phba->hbalock, iflag);
2995 	if (mbx_action == LPFC_MBX_NO_WAIT)
2996 		return;
2997 	timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
2998 	spin_lock_irqsave(&phba->hbalock, iflag);
2999 	if (phba->sli.mbox_active) {
3000 		actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
3001 		/* Determine how long we might wait for the active mailbox
3002 		 * command to be gracefully completed by firmware.
3003 		 */
3004 		timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
3005 				phba->sli.mbox_active) * 1000) + jiffies;
3006 	}
3007 	spin_unlock_irqrestore(&phba->hbalock, iflag);
3008 
3009 	/* Wait for the outstnading mailbox command to complete */
3010 	while (phba->sli.mbox_active) {
3011 		/* Check active mailbox complete status every 2ms */
3012 		msleep(2);
3013 		if (time_after(jiffies, timeout)) {
3014 			lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3015 				"2813 Mgmt IO is Blocked %x "
3016 				"- mbox cmd %x still active\n",
3017 				phba->sli.sli_flag, actcmd);
3018 			break;
3019 		}
3020 	}
3021 }
3022 
3023 /**
3024  * lpfc_sli4_node_prep - Assign RPIs for active nodes.
3025  * @phba: pointer to lpfc hba data structure.
3026  *
3027  * Allocate RPIs for all active remote nodes. This is needed whenever
3028  * an SLI4 adapter is reset and the driver is not unloading. Its purpose
3029  * is to fixup the temporary rpi assignments.
3030  **/
3031 void
3032 lpfc_sli4_node_prep(struct lpfc_hba *phba)
3033 {
3034 	struct lpfc_nodelist  *ndlp, *next_ndlp;
3035 	struct lpfc_vport **vports;
3036 	int i, rpi;
3037 	unsigned long flags;
3038 
3039 	if (phba->sli_rev != LPFC_SLI_REV4)
3040 		return;
3041 
3042 	vports = lpfc_create_vport_work_array(phba);
3043 	if (vports == NULL)
3044 		return;
3045 
3046 	for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3047 		if (vports[i]->load_flag & FC_UNLOADING)
3048 			continue;
3049 
3050 		list_for_each_entry_safe(ndlp, next_ndlp,
3051 					 &vports[i]->fc_nodes,
3052 					 nlp_listp) {
3053 			if (!NLP_CHK_NODE_ACT(ndlp))
3054 				continue;
3055 			rpi = lpfc_sli4_alloc_rpi(phba);
3056 			if (rpi == LPFC_RPI_ALLOC_ERROR) {
3057 				spin_lock_irqsave(&phba->ndlp_lock, flags);
3058 				NLP_CLR_NODE_ACT(ndlp);
3059 				spin_unlock_irqrestore(&phba->ndlp_lock, flags);
3060 				continue;
3061 			}
3062 			ndlp->nlp_rpi = rpi;
3063 			lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
3064 					 "0009 rpi:%x DID:%x "
3065 					 "flg:%x map:%x %p\n", ndlp->nlp_rpi,
3066 					 ndlp->nlp_DID, ndlp->nlp_flag,
3067 					 ndlp->nlp_usg_map, ndlp);
3068 		}
3069 	}
3070 	lpfc_destroy_vport_work_array(phba, vports);
3071 }
3072 
3073 /**
3074  * lpfc_online - Initialize and bring a HBA online
3075  * @phba: pointer to lpfc hba data structure.
3076  *
3077  * This routine initializes the HBA and brings a HBA online. During this
3078  * process, the management interface is blocked to prevent user space access
3079  * to the HBA interfering with the driver initialization.
3080  *
3081  * Return codes
3082  *   0 - successful
3083  *   1 - failed
3084  **/
3085 int
3086 lpfc_online(struct lpfc_hba *phba)
3087 {
3088 	struct lpfc_vport *vport;
3089 	struct lpfc_vport **vports;
3090 	int i, error = 0;
3091 	bool vpis_cleared = false;
3092 
3093 	if (!phba)
3094 		return 0;
3095 	vport = phba->pport;
3096 
3097 	if (!(vport->fc_flag & FC_OFFLINE_MODE))
3098 		return 0;
3099 
3100 	lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3101 			"0458 Bring Adapter online\n");
3102 
3103 	lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
3104 
3105 	if (phba->sli_rev == LPFC_SLI_REV4) {
3106 		if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
3107 			lpfc_unblock_mgmt_io(phba);
3108 			return 1;
3109 		}
3110 		spin_lock_irq(&phba->hbalock);
3111 		if (!phba->sli4_hba.max_cfg_param.vpi_used)
3112 			vpis_cleared = true;
3113 		spin_unlock_irq(&phba->hbalock);
3114 
3115 		/* Reestablish the local initiator port.
3116 		 * The offline process destroyed the previous lport.
3117 		 */
3118 		if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME &&
3119 				!phba->nvmet_support) {
3120 			error = lpfc_nvme_create_localport(phba->pport);
3121 			if (error)
3122 				lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3123 					"6132 NVME restore reg failed "
3124 					"on nvmei error x%x\n", error);
3125 		}
3126 	} else {
3127 		lpfc_sli_queue_init(phba);
3128 		if (lpfc_sli_hba_setup(phba)) {	/* Initialize SLI2/SLI3 HBA */
3129 			lpfc_unblock_mgmt_io(phba);
3130 			return 1;
3131 		}
3132 	}
3133 
3134 	vports = lpfc_create_vport_work_array(phba);
3135 	if (vports != NULL) {
3136 		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3137 			struct Scsi_Host *shost;
3138 			shost = lpfc_shost_from_vport(vports[i]);
3139 			spin_lock_irq(shost->host_lock);
3140 			vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
3141 			if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
3142 				vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3143 			if (phba->sli_rev == LPFC_SLI_REV4) {
3144 				vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
3145 				if ((vpis_cleared) &&
3146 				    (vports[i]->port_type !=
3147 					LPFC_PHYSICAL_PORT))
3148 					vports[i]->vpi = 0;
3149 			}
3150 			spin_unlock_irq(shost->host_lock);
3151 		}
3152 	}
3153 	lpfc_destroy_vport_work_array(phba, vports);
3154 
3155 	lpfc_unblock_mgmt_io(phba);
3156 	return 0;
3157 }
3158 
3159 /**
3160  * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
3161  * @phba: pointer to lpfc hba data structure.
3162  *
3163  * This routine marks a HBA's management interface as not blocked. Once the
3164  * HBA's management interface is marked as not blocked, all the user space
3165  * access to the HBA, whether they are from sysfs interface or libdfc
3166  * interface will be allowed. The HBA is set to block the management interface
3167  * when the driver prepares the HBA interface for online or offline and then
3168  * set to unblock the management interface afterwards.
3169  **/
3170 void
3171 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
3172 {
3173 	unsigned long iflag;
3174 
3175 	spin_lock_irqsave(&phba->hbalock, iflag);
3176 	phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
3177 	spin_unlock_irqrestore(&phba->hbalock, iflag);
3178 }
3179 
3180 /**
3181  * lpfc_offline_prep - Prepare a HBA to be brought offline
3182  * @phba: pointer to lpfc hba data structure.
3183  *
3184  * This routine is invoked to prepare a HBA to be brought offline. It performs
3185  * unregistration login to all the nodes on all vports and flushes the mailbox
3186  * queue to make it ready to be brought offline.
3187  **/
3188 void
3189 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
3190 {
3191 	struct lpfc_vport *vport = phba->pport;
3192 	struct lpfc_nodelist  *ndlp, *next_ndlp;
3193 	struct lpfc_vport **vports;
3194 	struct Scsi_Host *shost;
3195 	int i;
3196 
3197 	if (vport->fc_flag & FC_OFFLINE_MODE)
3198 		return;
3199 
3200 	lpfc_block_mgmt_io(phba, mbx_action);
3201 
3202 	lpfc_linkdown(phba);
3203 
3204 	/* Issue an unreg_login to all nodes on all vports */
3205 	vports = lpfc_create_vport_work_array(phba);
3206 	if (vports != NULL) {
3207 		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3208 			if (vports[i]->load_flag & FC_UNLOADING)
3209 				continue;
3210 			shost = lpfc_shost_from_vport(vports[i]);
3211 			spin_lock_irq(shost->host_lock);
3212 			vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
3213 			vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3214 			vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
3215 			spin_unlock_irq(shost->host_lock);
3216 
3217 			shost =	lpfc_shost_from_vport(vports[i]);
3218 			list_for_each_entry_safe(ndlp, next_ndlp,
3219 						 &vports[i]->fc_nodes,
3220 						 nlp_listp) {
3221 				if (!NLP_CHK_NODE_ACT(ndlp))
3222 					continue;
3223 				if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
3224 					continue;
3225 				if (ndlp->nlp_type & NLP_FABRIC) {
3226 					lpfc_disc_state_machine(vports[i], ndlp,
3227 						NULL, NLP_EVT_DEVICE_RECOVERY);
3228 					lpfc_disc_state_machine(vports[i], ndlp,
3229 						NULL, NLP_EVT_DEVICE_RM);
3230 				}
3231 				spin_lock_irq(shost->host_lock);
3232 				ndlp->nlp_flag &= ~NLP_NPR_ADISC;
3233 				spin_unlock_irq(shost->host_lock);
3234 				/*
3235 				 * Whenever an SLI4 port goes offline, free the
3236 				 * RPI. Get a new RPI when the adapter port
3237 				 * comes back online.
3238 				 */
3239 				if (phba->sli_rev == LPFC_SLI_REV4) {
3240 					lpfc_printf_vlog(ndlp->vport,
3241 							 KERN_INFO, LOG_NODE,
3242 							 "0011 lpfc_offline: "
3243 							 "ndlp:x%p did %x "
3244 							 "usgmap:x%x rpi:%x\n",
3245 							 ndlp, ndlp->nlp_DID,
3246 							 ndlp->nlp_usg_map,
3247 							 ndlp->nlp_rpi);
3248 
3249 					lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
3250 				}
3251 				lpfc_unreg_rpi(vports[i], ndlp);
3252 			}
3253 		}
3254 	}
3255 	lpfc_destroy_vport_work_array(phba, vports);
3256 
3257 	lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
3258 
3259 	if (phba->wq)
3260 		flush_workqueue(phba->wq);
3261 }
3262 
3263 /**
3264  * lpfc_offline - Bring a HBA offline
3265  * @phba: pointer to lpfc hba data structure.
3266  *
3267  * This routine actually brings a HBA offline. It stops all the timers
3268  * associated with the HBA, brings down the SLI layer, and eventually
3269  * marks the HBA as in offline state for the upper layer protocol.
3270  **/
3271 void
3272 lpfc_offline(struct lpfc_hba *phba)
3273 {
3274 	struct Scsi_Host  *shost;
3275 	struct lpfc_vport **vports;
3276 	int i;
3277 
3278 	if (phba->pport->fc_flag & FC_OFFLINE_MODE)
3279 		return;
3280 
3281 	/* stop port and all timers associated with this hba */
3282 	lpfc_stop_port(phba);
3283 
3284 	/* Tear down the local and target port registrations.  The
3285 	 * nvme transports need to cleanup.
3286 	 */
3287 	lpfc_nvmet_destroy_targetport(phba);
3288 	lpfc_nvme_destroy_localport(phba->pport);
3289 
3290 	vports = lpfc_create_vport_work_array(phba);
3291 	if (vports != NULL)
3292 		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3293 			lpfc_stop_vport_timers(vports[i]);
3294 	lpfc_destroy_vport_work_array(phba, vports);
3295 	lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3296 			"0460 Bring Adapter offline\n");
3297 	/* Bring down the SLI Layer and cleanup.  The HBA is offline
3298 	   now.  */
3299 	lpfc_sli_hba_down(phba);
3300 	spin_lock_irq(&phba->hbalock);
3301 	phba->work_ha = 0;
3302 	spin_unlock_irq(&phba->hbalock);
3303 	vports = lpfc_create_vport_work_array(phba);
3304 	if (vports != NULL)
3305 		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3306 			shost = lpfc_shost_from_vport(vports[i]);
3307 			spin_lock_irq(shost->host_lock);
3308 			vports[i]->work_port_events = 0;
3309 			vports[i]->fc_flag |= FC_OFFLINE_MODE;
3310 			spin_unlock_irq(shost->host_lock);
3311 		}
3312 	lpfc_destroy_vport_work_array(phba, vports);
3313 }
3314 
3315 /**
3316  * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
3317  * @phba: pointer to lpfc hba data structure.
3318  *
3319  * This routine is to free all the SCSI buffers and IOCBs from the driver
3320  * list back to kernel. It is called from lpfc_pci_remove_one to free
3321  * the internal resources before the device is removed from the system.
3322  **/
3323 static void
3324 lpfc_scsi_free(struct lpfc_hba *phba)
3325 {
3326 	struct lpfc_scsi_buf *sb, *sb_next;
3327 
3328 	if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
3329 		return;
3330 
3331 	spin_lock_irq(&phba->hbalock);
3332 
3333 	/* Release all the lpfc_scsi_bufs maintained by this host. */
3334 
3335 	spin_lock(&phba->scsi_buf_list_put_lock);
3336 	list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put,
3337 				 list) {
3338 		list_del(&sb->list);
3339 		dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3340 			      sb->dma_handle);
3341 		kfree(sb);
3342 		phba->total_scsi_bufs--;
3343 	}
3344 	spin_unlock(&phba->scsi_buf_list_put_lock);
3345 
3346 	spin_lock(&phba->scsi_buf_list_get_lock);
3347 	list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get,
3348 				 list) {
3349 		list_del(&sb->list);
3350 		dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3351 			      sb->dma_handle);
3352 		kfree(sb);
3353 		phba->total_scsi_bufs--;
3354 	}
3355 	spin_unlock(&phba->scsi_buf_list_get_lock);
3356 	spin_unlock_irq(&phba->hbalock);
3357 }
3358 /**
3359  * lpfc_nvme_free - Free all the NVME buffers and IOCBs from driver lists
3360  * @phba: pointer to lpfc hba data structure.
3361  *
3362  * This routine is to free all the NVME buffers and IOCBs from the driver
3363  * list back to kernel. It is called from lpfc_pci_remove_one to free
3364  * the internal resources before the device is removed from the system.
3365  **/
3366 static void
3367 lpfc_nvme_free(struct lpfc_hba *phba)
3368 {
3369 	struct lpfc_nvme_buf *lpfc_ncmd, *lpfc_ncmd_next;
3370 
3371 	if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME))
3372 		return;
3373 
3374 	spin_lock_irq(&phba->hbalock);
3375 
3376 	/* Release all the lpfc_nvme_bufs maintained by this host. */
3377 	spin_lock(&phba->nvme_buf_list_put_lock);
3378 	list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3379 				 &phba->lpfc_nvme_buf_list_put, list) {
3380 		list_del(&lpfc_ncmd->list);
3381 		phba->put_nvme_bufs--;
3382 		dma_pool_free(phba->lpfc_sg_dma_buf_pool, lpfc_ncmd->data,
3383 			      lpfc_ncmd->dma_handle);
3384 		kfree(lpfc_ncmd);
3385 		phba->total_nvme_bufs--;
3386 	}
3387 	spin_unlock(&phba->nvme_buf_list_put_lock);
3388 
3389 	spin_lock(&phba->nvme_buf_list_get_lock);
3390 	list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3391 				 &phba->lpfc_nvme_buf_list_get, list) {
3392 		list_del(&lpfc_ncmd->list);
3393 		phba->get_nvme_bufs--;
3394 		dma_pool_free(phba->lpfc_sg_dma_buf_pool, lpfc_ncmd->data,
3395 			      lpfc_ncmd->dma_handle);
3396 		kfree(lpfc_ncmd);
3397 		phba->total_nvme_bufs--;
3398 	}
3399 	spin_unlock(&phba->nvme_buf_list_get_lock);
3400 	spin_unlock_irq(&phba->hbalock);
3401 }
3402 /**
3403  * lpfc_sli4_els_sgl_update - update ELS xri-sgl sizing and mapping
3404  * @phba: pointer to lpfc hba data structure.
3405  *
3406  * This routine first calculates the sizes of the current els and allocated
3407  * scsi sgl lists, and then goes through all sgls to updates the physical
3408  * XRIs assigned due to port function reset. During port initialization, the
3409  * current els and allocated scsi sgl lists are 0s.
3410  *
3411  * Return codes
3412  *   0 - successful (for now, it always returns 0)
3413  **/
3414 int
3415 lpfc_sli4_els_sgl_update(struct lpfc_hba *phba)
3416 {
3417 	struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3418 	uint16_t i, lxri, xri_cnt, els_xri_cnt;
3419 	LIST_HEAD(els_sgl_list);
3420 	int rc;
3421 
3422 	/*
3423 	 * update on pci function's els xri-sgl list
3424 	 */
3425 	els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3426 
3427 	if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
3428 		/* els xri-sgl expanded */
3429 		xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
3430 		lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3431 				"3157 ELS xri-sgl count increased from "
3432 				"%d to %d\n", phba->sli4_hba.els_xri_cnt,
3433 				els_xri_cnt);
3434 		/* allocate the additional els sgls */
3435 		for (i = 0; i < xri_cnt; i++) {
3436 			sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3437 					     GFP_KERNEL);
3438 			if (sglq_entry == NULL) {
3439 				lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3440 						"2562 Failure to allocate an "
3441 						"ELS sgl entry:%d\n", i);
3442 				rc = -ENOMEM;
3443 				goto out_free_mem;
3444 			}
3445 			sglq_entry->buff_type = GEN_BUFF_TYPE;
3446 			sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
3447 							   &sglq_entry->phys);
3448 			if (sglq_entry->virt == NULL) {
3449 				kfree(sglq_entry);
3450 				lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3451 						"2563 Failure to allocate an "
3452 						"ELS mbuf:%d\n", i);
3453 				rc = -ENOMEM;
3454 				goto out_free_mem;
3455 			}
3456 			sglq_entry->sgl = sglq_entry->virt;
3457 			memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
3458 			sglq_entry->state = SGL_FREED;
3459 			list_add_tail(&sglq_entry->list, &els_sgl_list);
3460 		}
3461 		spin_lock_irq(&phba->hbalock);
3462 		spin_lock(&phba->sli4_hba.sgl_list_lock);
3463 		list_splice_init(&els_sgl_list,
3464 				 &phba->sli4_hba.lpfc_els_sgl_list);
3465 		spin_unlock(&phba->sli4_hba.sgl_list_lock);
3466 		spin_unlock_irq(&phba->hbalock);
3467 	} else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
3468 		/* els xri-sgl shrinked */
3469 		xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
3470 		lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3471 				"3158 ELS xri-sgl count decreased from "
3472 				"%d to %d\n", phba->sli4_hba.els_xri_cnt,
3473 				els_xri_cnt);
3474 		spin_lock_irq(&phba->hbalock);
3475 		spin_lock(&phba->sli4_hba.sgl_list_lock);
3476 		list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list,
3477 				 &els_sgl_list);
3478 		/* release extra els sgls from list */
3479 		for (i = 0; i < xri_cnt; i++) {
3480 			list_remove_head(&els_sgl_list,
3481 					 sglq_entry, struct lpfc_sglq, list);
3482 			if (sglq_entry) {
3483 				__lpfc_mbuf_free(phba, sglq_entry->virt,
3484 						 sglq_entry->phys);
3485 				kfree(sglq_entry);
3486 			}
3487 		}
3488 		list_splice_init(&els_sgl_list,
3489 				 &phba->sli4_hba.lpfc_els_sgl_list);
3490 		spin_unlock(&phba->sli4_hba.sgl_list_lock);
3491 		spin_unlock_irq(&phba->hbalock);
3492 	} else
3493 		lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3494 				"3163 ELS xri-sgl count unchanged: %d\n",
3495 				els_xri_cnt);
3496 	phba->sli4_hba.els_xri_cnt = els_xri_cnt;
3497 
3498 	/* update xris to els sgls on the list */
3499 	sglq_entry = NULL;
3500 	sglq_entry_next = NULL;
3501 	list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3502 				 &phba->sli4_hba.lpfc_els_sgl_list, list) {
3503 		lxri = lpfc_sli4_next_xritag(phba);
3504 		if (lxri == NO_XRI) {
3505 			lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3506 					"2400 Failed to allocate xri for "
3507 					"ELS sgl\n");
3508 			rc = -ENOMEM;
3509 			goto out_free_mem;
3510 		}
3511 		sglq_entry->sli4_lxritag = lxri;
3512 		sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3513 	}
3514 	return 0;
3515 
3516 out_free_mem:
3517 	lpfc_free_els_sgl_list(phba);
3518 	return rc;
3519 }
3520 
3521 /**
3522  * lpfc_sli4_nvmet_sgl_update - update xri-sgl sizing and mapping
3523  * @phba: pointer to lpfc hba data structure.
3524  *
3525  * This routine first calculates the sizes of the current els and allocated
3526  * scsi sgl lists, and then goes through all sgls to updates the physical
3527  * XRIs assigned due to port function reset. During port initialization, the
3528  * current els and allocated scsi sgl lists are 0s.
3529  *
3530  * Return codes
3531  *   0 - successful (for now, it always returns 0)
3532  **/
3533 int
3534 lpfc_sli4_nvmet_sgl_update(struct lpfc_hba *phba)
3535 {
3536 	struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3537 	uint16_t i, lxri, xri_cnt, els_xri_cnt;
3538 	uint16_t nvmet_xri_cnt;
3539 	LIST_HEAD(nvmet_sgl_list);
3540 	int rc;
3541 
3542 	/*
3543 	 * update on pci function's nvmet xri-sgl list
3544 	 */
3545 	els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3546 
3547 	/* For NVMET, ALL remaining XRIs are dedicated for IO processing */
3548 	nvmet_xri_cnt = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
3549 	if (nvmet_xri_cnt > phba->sli4_hba.nvmet_xri_cnt) {
3550 		/* els xri-sgl expanded */
3551 		xri_cnt = nvmet_xri_cnt - phba->sli4_hba.nvmet_xri_cnt;
3552 		lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3553 				"6302 NVMET xri-sgl cnt grew from %d to %d\n",
3554 				phba->sli4_hba.nvmet_xri_cnt, nvmet_xri_cnt);
3555 		/* allocate the additional nvmet sgls */
3556 		for (i = 0; i < xri_cnt; i++) {
3557 			sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3558 					     GFP_KERNEL);
3559 			if (sglq_entry == NULL) {
3560 				lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3561 						"6303 Failure to allocate an "
3562 						"NVMET sgl entry:%d\n", i);
3563 				rc = -ENOMEM;
3564 				goto out_free_mem;
3565 			}
3566 			sglq_entry->buff_type = NVMET_BUFF_TYPE;
3567 			sglq_entry->virt = lpfc_nvmet_buf_alloc(phba, 0,
3568 							   &sglq_entry->phys);
3569 			if (sglq_entry->virt == NULL) {
3570 				kfree(sglq_entry);
3571 				lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3572 						"6304 Failure to allocate an "
3573 						"NVMET buf:%d\n", i);
3574 				rc = -ENOMEM;
3575 				goto out_free_mem;
3576 			}
3577 			sglq_entry->sgl = sglq_entry->virt;
3578 			memset(sglq_entry->sgl, 0,
3579 			       phba->cfg_sg_dma_buf_size);
3580 			sglq_entry->state = SGL_FREED;
3581 			list_add_tail(&sglq_entry->list, &nvmet_sgl_list);
3582 		}
3583 		spin_lock_irq(&phba->hbalock);
3584 		spin_lock(&phba->sli4_hba.sgl_list_lock);
3585 		list_splice_init(&nvmet_sgl_list,
3586 				 &phba->sli4_hba.lpfc_nvmet_sgl_list);
3587 		spin_unlock(&phba->sli4_hba.sgl_list_lock);
3588 		spin_unlock_irq(&phba->hbalock);
3589 	} else if (nvmet_xri_cnt < phba->sli4_hba.nvmet_xri_cnt) {
3590 		/* nvmet xri-sgl shrunk */
3591 		xri_cnt = phba->sli4_hba.nvmet_xri_cnt - nvmet_xri_cnt;
3592 		lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3593 				"6305 NVMET xri-sgl count decreased from "
3594 				"%d to %d\n", phba->sli4_hba.nvmet_xri_cnt,
3595 				nvmet_xri_cnt);
3596 		spin_lock_irq(&phba->hbalock);
3597 		spin_lock(&phba->sli4_hba.sgl_list_lock);
3598 		list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list,
3599 				 &nvmet_sgl_list);
3600 		/* release extra nvmet sgls from list */
3601 		for (i = 0; i < xri_cnt; i++) {
3602 			list_remove_head(&nvmet_sgl_list,
3603 					 sglq_entry, struct lpfc_sglq, list);
3604 			if (sglq_entry) {
3605 				lpfc_nvmet_buf_free(phba, sglq_entry->virt,
3606 						    sglq_entry->phys);
3607 				kfree(sglq_entry);
3608 			}
3609 		}
3610 		list_splice_init(&nvmet_sgl_list,
3611 				 &phba->sli4_hba.lpfc_nvmet_sgl_list);
3612 		spin_unlock(&phba->sli4_hba.sgl_list_lock);
3613 		spin_unlock_irq(&phba->hbalock);
3614 	} else
3615 		lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3616 				"6306 NVMET xri-sgl count unchanged: %d\n",
3617 				nvmet_xri_cnt);
3618 	phba->sli4_hba.nvmet_xri_cnt = nvmet_xri_cnt;
3619 
3620 	/* update xris to nvmet sgls on the list */
3621 	sglq_entry = NULL;
3622 	sglq_entry_next = NULL;
3623 	list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3624 				 &phba->sli4_hba.lpfc_nvmet_sgl_list, list) {
3625 		lxri = lpfc_sli4_next_xritag(phba);
3626 		if (lxri == NO_XRI) {
3627 			lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3628 					"6307 Failed to allocate xri for "
3629 					"NVMET sgl\n");
3630 			rc = -ENOMEM;
3631 			goto out_free_mem;
3632 		}
3633 		sglq_entry->sli4_lxritag = lxri;
3634 		sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3635 	}
3636 	return 0;
3637 
3638 out_free_mem:
3639 	lpfc_free_nvmet_sgl_list(phba);
3640 	return rc;
3641 }
3642 
3643 /**
3644  * lpfc_sli4_scsi_sgl_update - update xri-sgl sizing and mapping
3645  * @phba: pointer to lpfc hba data structure.
3646  *
3647  * This routine first calculates the sizes of the current els and allocated
3648  * scsi sgl lists, and then goes through all sgls to updates the physical
3649  * XRIs assigned due to port function reset. During port initialization, the
3650  * current els and allocated scsi sgl lists are 0s.
3651  *
3652  * Return codes
3653  *   0 - successful (for now, it always returns 0)
3654  **/
3655 int
3656 lpfc_sli4_scsi_sgl_update(struct lpfc_hba *phba)
3657 {
3658 	struct lpfc_scsi_buf *psb, *psb_next;
3659 	uint16_t i, lxri, els_xri_cnt, scsi_xri_cnt;
3660 	LIST_HEAD(scsi_sgl_list);
3661 	int rc;
3662 
3663 	/*
3664 	 * update on pci function's els xri-sgl list
3665 	 */
3666 	els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3667 	phba->total_scsi_bufs = 0;
3668 
3669 	/*
3670 	 * update on pci function's allocated scsi xri-sgl list
3671 	 */
3672 	/* maximum number of xris available for scsi buffers */
3673 	phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri -
3674 				      els_xri_cnt;
3675 
3676 	if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
3677 		return 0;
3678 
3679 	if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3680 		phba->sli4_hba.scsi_xri_max =  /* Split them up */
3681 			(phba->sli4_hba.scsi_xri_max *
3682 			 phba->cfg_xri_split) / 100;
3683 
3684 	spin_lock_irq(&phba->scsi_buf_list_get_lock);
3685 	spin_lock(&phba->scsi_buf_list_put_lock);
3686 	list_splice_init(&phba->lpfc_scsi_buf_list_get, &scsi_sgl_list);
3687 	list_splice(&phba->lpfc_scsi_buf_list_put, &scsi_sgl_list);
3688 	spin_unlock(&phba->scsi_buf_list_put_lock);
3689 	spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3690 
3691 	lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3692 			"6060 Current allocated SCSI xri-sgl count:%d, "
3693 			"maximum  SCSI xri count:%d (split:%d)\n",
3694 			phba->sli4_hba.scsi_xri_cnt,
3695 			phba->sli4_hba.scsi_xri_max, phba->cfg_xri_split);
3696 
3697 	if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) {
3698 		/* max scsi xri shrinked below the allocated scsi buffers */
3699 		scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt -
3700 					phba->sli4_hba.scsi_xri_max;
3701 		/* release the extra allocated scsi buffers */
3702 		for (i = 0; i < scsi_xri_cnt; i++) {
3703 			list_remove_head(&scsi_sgl_list, psb,
3704 					 struct lpfc_scsi_buf, list);
3705 			if (psb) {
3706 				dma_pool_free(phba->lpfc_sg_dma_buf_pool,
3707 					      psb->data, psb->dma_handle);
3708 				kfree(psb);
3709 			}
3710 		}
3711 		spin_lock_irq(&phba->scsi_buf_list_get_lock);
3712 		phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt;
3713 		spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3714 	}
3715 
3716 	/* update xris associated to remaining allocated scsi buffers */
3717 	psb = NULL;
3718 	psb_next = NULL;
3719 	list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) {
3720 		lxri = lpfc_sli4_next_xritag(phba);
3721 		if (lxri == NO_XRI) {
3722 			lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3723 					"2560 Failed to allocate xri for "
3724 					"scsi buffer\n");
3725 			rc = -ENOMEM;
3726 			goto out_free_mem;
3727 		}
3728 		psb->cur_iocbq.sli4_lxritag = lxri;
3729 		psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3730 	}
3731 	spin_lock_irq(&phba->scsi_buf_list_get_lock);
3732 	spin_lock(&phba->scsi_buf_list_put_lock);
3733 	list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list_get);
3734 	INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
3735 	spin_unlock(&phba->scsi_buf_list_put_lock);
3736 	spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3737 	return 0;
3738 
3739 out_free_mem:
3740 	lpfc_scsi_free(phba);
3741 	return rc;
3742 }
3743 
3744 static uint64_t
3745 lpfc_get_wwpn(struct lpfc_hba *phba)
3746 {
3747 	uint64_t wwn;
3748 	int rc;
3749 	LPFC_MBOXQ_t *mboxq;
3750 	MAILBOX_t *mb;
3751 
3752 	mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
3753 						GFP_KERNEL);
3754 	if (!mboxq)
3755 		return (uint64_t)-1;
3756 
3757 	/* First get WWN of HBA instance */
3758 	lpfc_read_nv(phba, mboxq);
3759 	rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
3760 	if (rc != MBX_SUCCESS) {
3761 		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3762 				"6019 Mailbox failed , mbxCmd x%x "
3763 				"READ_NV, mbxStatus x%x\n",
3764 				bf_get(lpfc_mqe_command, &mboxq->u.mqe),
3765 				bf_get(lpfc_mqe_status, &mboxq->u.mqe));
3766 		mempool_free(mboxq, phba->mbox_mem_pool);
3767 		return (uint64_t) -1;
3768 	}
3769 	mb = &mboxq->u.mb;
3770 	memcpy(&wwn, (char *)mb->un.varRDnvp.portname, sizeof(uint64_t));
3771 	/* wwn is WWPN of HBA instance */
3772 	mempool_free(mboxq, phba->mbox_mem_pool);
3773 	if (phba->sli_rev == LPFC_SLI_REV4)
3774 		return be64_to_cpu(wwn);
3775 	else
3776 		return rol64(wwn, 32);
3777 }
3778 
3779 /**
3780  * lpfc_sli4_nvme_sgl_update - update xri-sgl sizing and mapping
3781  * @phba: pointer to lpfc hba data structure.
3782  *
3783  * This routine first calculates the sizes of the current els and allocated
3784  * scsi sgl lists, and then goes through all sgls to updates the physical
3785  * XRIs assigned due to port function reset. During port initialization, the
3786  * current els and allocated scsi sgl lists are 0s.
3787  *
3788  * Return codes
3789  *   0 - successful (for now, it always returns 0)
3790  **/
3791 int
3792 lpfc_sli4_nvme_sgl_update(struct lpfc_hba *phba)
3793 {
3794 	struct lpfc_nvme_buf *lpfc_ncmd = NULL, *lpfc_ncmd_next = NULL;
3795 	uint16_t i, lxri, els_xri_cnt;
3796 	uint16_t nvme_xri_cnt, nvme_xri_max;
3797 	LIST_HEAD(nvme_sgl_list);
3798 	int rc, cnt;
3799 
3800 	phba->total_nvme_bufs = 0;
3801 	phba->get_nvme_bufs = 0;
3802 	phba->put_nvme_bufs = 0;
3803 
3804 	if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME))
3805 		return 0;
3806 	/*
3807 	 * update on pci function's allocated nvme xri-sgl list
3808 	 */
3809 
3810 	/* maximum number of xris available for nvme buffers */
3811 	els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3812 	nvme_xri_max = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
3813 	phba->sli4_hba.nvme_xri_max = nvme_xri_max;
3814 	phba->sli4_hba.nvme_xri_max -= phba->sli4_hba.scsi_xri_max;
3815 
3816 	lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3817 			"6074 Current allocated NVME xri-sgl count:%d, "
3818 			"maximum  NVME xri count:%d\n",
3819 			phba->sli4_hba.nvme_xri_cnt,
3820 			phba->sli4_hba.nvme_xri_max);
3821 
3822 	spin_lock_irq(&phba->nvme_buf_list_get_lock);
3823 	spin_lock(&phba->nvme_buf_list_put_lock);
3824 	list_splice_init(&phba->lpfc_nvme_buf_list_get, &nvme_sgl_list);
3825 	list_splice(&phba->lpfc_nvme_buf_list_put, &nvme_sgl_list);
3826 	cnt = phba->get_nvme_bufs + phba->put_nvme_bufs;
3827 	phba->get_nvme_bufs = 0;
3828 	phba->put_nvme_bufs = 0;
3829 	spin_unlock(&phba->nvme_buf_list_put_lock);
3830 	spin_unlock_irq(&phba->nvme_buf_list_get_lock);
3831 
3832 	if (phba->sli4_hba.nvme_xri_cnt > phba->sli4_hba.nvme_xri_max) {
3833 		/* max nvme xri shrunk below the allocated nvme buffers */
3834 		spin_lock_irq(&phba->nvme_buf_list_get_lock);
3835 		nvme_xri_cnt = phba->sli4_hba.nvme_xri_cnt -
3836 					phba->sli4_hba.nvme_xri_max;
3837 		spin_unlock_irq(&phba->nvme_buf_list_get_lock);
3838 		/* release the extra allocated nvme buffers */
3839 		for (i = 0; i < nvme_xri_cnt; i++) {
3840 			list_remove_head(&nvme_sgl_list, lpfc_ncmd,
3841 					 struct lpfc_nvme_buf, list);
3842 			if (lpfc_ncmd) {
3843 				dma_pool_free(phba->lpfc_sg_dma_buf_pool,
3844 					      lpfc_ncmd->data,
3845 					      lpfc_ncmd->dma_handle);
3846 				kfree(lpfc_ncmd);
3847 			}
3848 		}
3849 		spin_lock_irq(&phba->nvme_buf_list_get_lock);
3850 		phba->sli4_hba.nvme_xri_cnt -= nvme_xri_cnt;
3851 		spin_unlock_irq(&phba->nvme_buf_list_get_lock);
3852 	}
3853 
3854 	/* update xris associated to remaining allocated nvme buffers */
3855 	lpfc_ncmd = NULL;
3856 	lpfc_ncmd_next = NULL;
3857 	list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3858 				 &nvme_sgl_list, list) {
3859 		lxri = lpfc_sli4_next_xritag(phba);
3860 		if (lxri == NO_XRI) {
3861 			lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3862 					"6075 Failed to allocate xri for "
3863 					"nvme buffer\n");
3864 			rc = -ENOMEM;
3865 			goto out_free_mem;
3866 		}
3867 		lpfc_ncmd->cur_iocbq.sli4_lxritag = lxri;
3868 		lpfc_ncmd->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3869 	}
3870 	spin_lock_irq(&phba->nvme_buf_list_get_lock);
3871 	spin_lock(&phba->nvme_buf_list_put_lock);
3872 	list_splice_init(&nvme_sgl_list, &phba->lpfc_nvme_buf_list_get);
3873 	phba->get_nvme_bufs = cnt;
3874 	INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_put);
3875 	spin_unlock(&phba->nvme_buf_list_put_lock);
3876 	spin_unlock_irq(&phba->nvme_buf_list_get_lock);
3877 	return 0;
3878 
3879 out_free_mem:
3880 	lpfc_nvme_free(phba);
3881 	return rc;
3882 }
3883 
3884 /**
3885  * lpfc_create_port - Create an FC port
3886  * @phba: pointer to lpfc hba data structure.
3887  * @instance: a unique integer ID to this FC port.
3888  * @dev: pointer to the device data structure.
3889  *
3890  * This routine creates a FC port for the upper layer protocol. The FC port
3891  * can be created on top of either a physical port or a virtual port provided
3892  * by the HBA. This routine also allocates a SCSI host data structure (shost)
3893  * and associates the FC port created before adding the shost into the SCSI
3894  * layer.
3895  *
3896  * Return codes
3897  *   @vport - pointer to the virtual N_Port data structure.
3898  *   NULL - port create failed.
3899  **/
3900 struct lpfc_vport *
3901 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
3902 {
3903 	struct lpfc_vport *vport;
3904 	struct Scsi_Host  *shost = NULL;
3905 	int error = 0;
3906 	int i;
3907 	uint64_t wwn;
3908 	bool use_no_reset_hba = false;
3909 	int rc;
3910 
3911 	if (lpfc_no_hba_reset_cnt) {
3912 		if (phba->sli_rev < LPFC_SLI_REV4 &&
3913 		    dev == &phba->pcidev->dev) {
3914 			/* Reset the port first */
3915 			lpfc_sli_brdrestart(phba);
3916 			rc = lpfc_sli_chipset_init(phba);
3917 			if (rc)
3918 				return NULL;
3919 		}
3920 		wwn = lpfc_get_wwpn(phba);
3921 	}
3922 
3923 	for (i = 0; i < lpfc_no_hba_reset_cnt; i++) {
3924 		if (wwn == lpfc_no_hba_reset[i]) {
3925 			lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3926 					"6020 Setting use_no_reset port=%llx\n",
3927 					wwn);
3928 			use_no_reset_hba = true;
3929 			break;
3930 		}
3931 	}
3932 
3933 	if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
3934 		if (dev != &phba->pcidev->dev) {
3935 			shost = scsi_host_alloc(&lpfc_vport_template,
3936 						sizeof(struct lpfc_vport));
3937 		} else {
3938 			if (!use_no_reset_hba)
3939 				shost = scsi_host_alloc(&lpfc_template,
3940 						sizeof(struct lpfc_vport));
3941 			else
3942 				shost = scsi_host_alloc(&lpfc_template_no_hr,
3943 						sizeof(struct lpfc_vport));
3944 		}
3945 	} else if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
3946 		shost = scsi_host_alloc(&lpfc_template_nvme,
3947 					sizeof(struct lpfc_vport));
3948 	}
3949 	if (!shost)
3950 		goto out;
3951 
3952 	vport = (struct lpfc_vport *) shost->hostdata;
3953 	vport->phba = phba;
3954 	vport->load_flag |= FC_LOADING;
3955 	vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3956 	vport->fc_rscn_flush = 0;
3957 	lpfc_get_vport_cfgparam(vport);
3958 
3959 	shost->unique_id = instance;
3960 	shost->max_id = LPFC_MAX_TARGET;
3961 	shost->max_lun = vport->cfg_max_luns;
3962 	shost->this_id = -1;
3963 	shost->max_cmd_len = 16;
3964 	shost->nr_hw_queues = phba->cfg_fcp_io_channel;
3965 	if (phba->sli_rev == LPFC_SLI_REV4) {
3966 		shost->dma_boundary =
3967 			phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
3968 		shost->sg_tablesize = phba->cfg_scsi_seg_cnt;
3969 	}
3970 
3971 	/*
3972 	 * Set initial can_queue value since 0 is no longer supported and
3973 	 * scsi_add_host will fail. This will be adjusted later based on the
3974 	 * max xri value determined in hba setup.
3975 	 */
3976 	shost->can_queue = phba->cfg_hba_queue_depth - 10;
3977 	if (dev != &phba->pcidev->dev) {
3978 		shost->transportt = lpfc_vport_transport_template;
3979 		vport->port_type = LPFC_NPIV_PORT;
3980 	} else {
3981 		shost->transportt = lpfc_transport_template;
3982 		vport->port_type = LPFC_PHYSICAL_PORT;
3983 	}
3984 
3985 	/* Initialize all internally managed lists. */
3986 	INIT_LIST_HEAD(&vport->fc_nodes);
3987 	INIT_LIST_HEAD(&vport->rcv_buffer_list);
3988 	spin_lock_init(&vport->work_port_lock);
3989 
3990 	timer_setup(&vport->fc_disctmo, lpfc_disc_timeout, 0);
3991 
3992 	timer_setup(&vport->els_tmofunc, lpfc_els_timeout, 0);
3993 
3994 	timer_setup(&vport->delayed_disc_tmo, lpfc_delayed_disc_tmo, 0);
3995 
3996 	error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
3997 	if (error)
3998 		goto out_put_shost;
3999 
4000 	spin_lock_irq(&phba->port_list_lock);
4001 	list_add_tail(&vport->listentry, &phba->port_list);
4002 	spin_unlock_irq(&phba->port_list_lock);
4003 	return vport;
4004 
4005 out_put_shost:
4006 	scsi_host_put(shost);
4007 out:
4008 	return NULL;
4009 }
4010 
4011 /**
4012  * destroy_port -  destroy an FC port
4013  * @vport: pointer to an lpfc virtual N_Port data structure.
4014  *
4015  * This routine destroys a FC port from the upper layer protocol. All the
4016  * resources associated with the port are released.
4017  **/
4018 void
4019 destroy_port(struct lpfc_vport *vport)
4020 {
4021 	struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4022 	struct lpfc_hba  *phba = vport->phba;
4023 
4024 	lpfc_debugfs_terminate(vport);
4025 	fc_remove_host(shost);
4026 	scsi_remove_host(shost);
4027 
4028 	spin_lock_irq(&phba->port_list_lock);
4029 	list_del_init(&vport->listentry);
4030 	spin_unlock_irq(&phba->port_list_lock);
4031 
4032 	lpfc_cleanup(vport);
4033 	return;
4034 }
4035 
4036 /**
4037  * lpfc_get_instance - Get a unique integer ID
4038  *
4039  * This routine allocates a unique integer ID from lpfc_hba_index pool. It
4040  * uses the kernel idr facility to perform the task.
4041  *
4042  * Return codes:
4043  *   instance - a unique integer ID allocated as the new instance.
4044  *   -1 - lpfc get instance failed.
4045  **/
4046 int
4047 lpfc_get_instance(void)
4048 {
4049 	int ret;
4050 
4051 	ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
4052 	return ret < 0 ? -1 : ret;
4053 }
4054 
4055 /**
4056  * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
4057  * @shost: pointer to SCSI host data structure.
4058  * @time: elapsed time of the scan in jiffies.
4059  *
4060  * This routine is called by the SCSI layer with a SCSI host to determine
4061  * whether the scan host is finished.
4062  *
4063  * Note: there is no scan_start function as adapter initialization will have
4064  * asynchronously kicked off the link initialization.
4065  *
4066  * Return codes
4067  *   0 - SCSI host scan is not over yet.
4068  *   1 - SCSI host scan is over.
4069  **/
4070 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
4071 {
4072 	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4073 	struct lpfc_hba   *phba = vport->phba;
4074 	int stat = 0;
4075 
4076 	spin_lock_irq(shost->host_lock);
4077 
4078 	if (vport->load_flag & FC_UNLOADING) {
4079 		stat = 1;
4080 		goto finished;
4081 	}
4082 	if (time >= msecs_to_jiffies(30 * 1000)) {
4083 		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4084 				"0461 Scanning longer than 30 "
4085 				"seconds.  Continuing initialization\n");
4086 		stat = 1;
4087 		goto finished;
4088 	}
4089 	if (time >= msecs_to_jiffies(15 * 1000) &&
4090 	    phba->link_state <= LPFC_LINK_DOWN) {
4091 		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4092 				"0465 Link down longer than 15 "
4093 				"seconds.  Continuing initialization\n");
4094 		stat = 1;
4095 		goto finished;
4096 	}
4097 
4098 	if (vport->port_state != LPFC_VPORT_READY)
4099 		goto finished;
4100 	if (vport->num_disc_nodes || vport->fc_prli_sent)
4101 		goto finished;
4102 	if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000))
4103 		goto finished;
4104 	if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
4105 		goto finished;
4106 
4107 	stat = 1;
4108 
4109 finished:
4110 	spin_unlock_irq(shost->host_lock);
4111 	return stat;
4112 }
4113 
4114 void lpfc_host_supported_speeds_set(struct Scsi_Host *shost)
4115 {
4116 	struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
4117 	struct lpfc_hba   *phba = vport->phba;
4118 
4119 	fc_host_supported_speeds(shost) = 0;
4120 	if (phba->lmt & LMT_128Gb)
4121 		fc_host_supported_speeds(shost) |= FC_PORTSPEED_128GBIT;
4122 	if (phba->lmt & LMT_64Gb)
4123 		fc_host_supported_speeds(shost) |= FC_PORTSPEED_64GBIT;
4124 	if (phba->lmt & LMT_32Gb)
4125 		fc_host_supported_speeds(shost) |= FC_PORTSPEED_32GBIT;
4126 	if (phba->lmt & LMT_16Gb)
4127 		fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
4128 	if (phba->lmt & LMT_10Gb)
4129 		fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
4130 	if (phba->lmt & LMT_8Gb)
4131 		fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
4132 	if (phba->lmt & LMT_4Gb)
4133 		fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
4134 	if (phba->lmt & LMT_2Gb)
4135 		fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
4136 	if (phba->lmt & LMT_1Gb)
4137 		fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
4138 }
4139 
4140 /**
4141  * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
4142  * @shost: pointer to SCSI host data structure.
4143  *
4144  * This routine initializes a given SCSI host attributes on a FC port. The
4145  * SCSI host can be either on top of a physical port or a virtual port.
4146  **/
4147 void lpfc_host_attrib_init(struct Scsi_Host *shost)
4148 {
4149 	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4150 	struct lpfc_hba   *phba = vport->phba;
4151 	/*
4152 	 * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
4153 	 */
4154 
4155 	fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
4156 	fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
4157 	fc_host_supported_classes(shost) = FC_COS_CLASS3;
4158 
4159 	memset(fc_host_supported_fc4s(shost), 0,
4160 	       sizeof(fc_host_supported_fc4s(shost)));
4161 	fc_host_supported_fc4s(shost)[2] = 1;
4162 	fc_host_supported_fc4s(shost)[7] = 1;
4163 
4164 	lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
4165 				 sizeof fc_host_symbolic_name(shost));
4166 
4167 	lpfc_host_supported_speeds_set(shost);
4168 
4169 	fc_host_maxframe_size(shost) =
4170 		(((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
4171 		(uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
4172 
4173 	fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
4174 
4175 	/* This value is also unchanging */
4176 	memset(fc_host_active_fc4s(shost), 0,
4177 	       sizeof(fc_host_active_fc4s(shost)));
4178 	fc_host_active_fc4s(shost)[2] = 1;
4179 	fc_host_active_fc4s(shost)[7] = 1;
4180 
4181 	fc_host_max_npiv_vports(shost) = phba->max_vpi;
4182 	spin_lock_irq(shost->host_lock);
4183 	vport->load_flag &= ~FC_LOADING;
4184 	spin_unlock_irq(shost->host_lock);
4185 }
4186 
4187 /**
4188  * lpfc_stop_port_s3 - Stop SLI3 device port
4189  * @phba: pointer to lpfc hba data structure.
4190  *
4191  * This routine is invoked to stop an SLI3 device port, it stops the device
4192  * from generating interrupts and stops the device driver's timers for the
4193  * device.
4194  **/
4195 static void
4196 lpfc_stop_port_s3(struct lpfc_hba *phba)
4197 {
4198 	/* Clear all interrupt enable conditions */
4199 	writel(0, phba->HCregaddr);
4200 	readl(phba->HCregaddr); /* flush */
4201 	/* Clear all pending interrupts */
4202 	writel(0xffffffff, phba->HAregaddr);
4203 	readl(phba->HAregaddr); /* flush */
4204 
4205 	/* Reset some HBA SLI setup states */
4206 	lpfc_stop_hba_timers(phba);
4207 	phba->pport->work_port_events = 0;
4208 }
4209 
4210 /**
4211  * lpfc_stop_port_s4 - Stop SLI4 device port
4212  * @phba: pointer to lpfc hba data structure.
4213  *
4214  * This routine is invoked to stop an SLI4 device port, it stops the device
4215  * from generating interrupts and stops the device driver's timers for the
4216  * device.
4217  **/
4218 static void
4219 lpfc_stop_port_s4(struct lpfc_hba *phba)
4220 {
4221 	/* Reset some HBA SLI4 setup states */
4222 	lpfc_stop_hba_timers(phba);
4223 	phba->pport->work_port_events = 0;
4224 	phba->sli4_hba.intr_enable = 0;
4225 }
4226 
4227 /**
4228  * lpfc_stop_port - Wrapper function for stopping hba port
4229  * @phba: Pointer to HBA context object.
4230  *
4231  * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
4232  * the API jump table function pointer from the lpfc_hba struct.
4233  **/
4234 void
4235 lpfc_stop_port(struct lpfc_hba *phba)
4236 {
4237 	phba->lpfc_stop_port(phba);
4238 
4239 	if (phba->wq)
4240 		flush_workqueue(phba->wq);
4241 }
4242 
4243 /**
4244  * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
4245  * @phba: Pointer to hba for which this call is being executed.
4246  *
4247  * This routine starts the timer waiting for the FCF rediscovery to complete.
4248  **/
4249 void
4250 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
4251 {
4252 	unsigned long fcf_redisc_wait_tmo =
4253 		(jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
4254 	/* Start fcf rediscovery wait period timer */
4255 	mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
4256 	spin_lock_irq(&phba->hbalock);
4257 	/* Allow action to new fcf asynchronous event */
4258 	phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
4259 	/* Mark the FCF rediscovery pending state */
4260 	phba->fcf.fcf_flag |= FCF_REDISC_PEND;
4261 	spin_unlock_irq(&phba->hbalock);
4262 }
4263 
4264 /**
4265  * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
4266  * @ptr: Map to lpfc_hba data structure pointer.
4267  *
4268  * This routine is invoked when waiting for FCF table rediscover has been
4269  * timed out. If new FCF record(s) has (have) been discovered during the
4270  * wait period, a new FCF event shall be added to the FCOE async event
4271  * list, and then worker thread shall be waked up for processing from the
4272  * worker thread context.
4273  **/
4274 static void
4275 lpfc_sli4_fcf_redisc_wait_tmo(struct timer_list *t)
4276 {
4277 	struct lpfc_hba *phba = from_timer(phba, t, fcf.redisc_wait);
4278 
4279 	/* Don't send FCF rediscovery event if timer cancelled */
4280 	spin_lock_irq(&phba->hbalock);
4281 	if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
4282 		spin_unlock_irq(&phba->hbalock);
4283 		return;
4284 	}
4285 	/* Clear FCF rediscovery timer pending flag */
4286 	phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
4287 	/* FCF rediscovery event to worker thread */
4288 	phba->fcf.fcf_flag |= FCF_REDISC_EVT;
4289 	spin_unlock_irq(&phba->hbalock);
4290 	lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
4291 			"2776 FCF rediscover quiescent timer expired\n");
4292 	/* wake up worker thread */
4293 	lpfc_worker_wake_up(phba);
4294 }
4295 
4296 /**
4297  * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
4298  * @phba: pointer to lpfc hba data structure.
4299  * @acqe_link: pointer to the async link completion queue entry.
4300  *
4301  * This routine is to parse the SLI4 link-attention link fault code.
4302  **/
4303 static void
4304 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
4305 			   struct lpfc_acqe_link *acqe_link)
4306 {
4307 	switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
4308 	case LPFC_ASYNC_LINK_FAULT_NONE:
4309 	case LPFC_ASYNC_LINK_FAULT_LOCAL:
4310 	case LPFC_ASYNC_LINK_FAULT_REMOTE:
4311 	case LPFC_ASYNC_LINK_FAULT_LR_LRR:
4312 		break;
4313 	default:
4314 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4315 				"0398 Unknown link fault code: x%x\n",
4316 				bf_get(lpfc_acqe_link_fault, acqe_link));
4317 		break;
4318 	}
4319 }
4320 
4321 /**
4322  * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
4323  * @phba: pointer to lpfc hba data structure.
4324  * @acqe_link: pointer to the async link completion queue entry.
4325  *
4326  * This routine is to parse the SLI4 link attention type and translate it
4327  * into the base driver's link attention type coding.
4328  *
4329  * Return: Link attention type in terms of base driver's coding.
4330  **/
4331 static uint8_t
4332 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
4333 			  struct lpfc_acqe_link *acqe_link)
4334 {
4335 	uint8_t att_type;
4336 
4337 	switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
4338 	case LPFC_ASYNC_LINK_STATUS_DOWN:
4339 	case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
4340 		att_type = LPFC_ATT_LINK_DOWN;
4341 		break;
4342 	case LPFC_ASYNC_LINK_STATUS_UP:
4343 		/* Ignore physical link up events - wait for logical link up */
4344 		att_type = LPFC_ATT_RESERVED;
4345 		break;
4346 	case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
4347 		att_type = LPFC_ATT_LINK_UP;
4348 		break;
4349 	default:
4350 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4351 				"0399 Invalid link attention type: x%x\n",
4352 				bf_get(lpfc_acqe_link_status, acqe_link));
4353 		att_type = LPFC_ATT_RESERVED;
4354 		break;
4355 	}
4356 	return att_type;
4357 }
4358 
4359 /**
4360  * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
4361  * @phba: pointer to lpfc hba data structure.
4362  *
4363  * This routine is to get an SLI3 FC port's link speed in Mbps.
4364  *
4365  * Return: link speed in terms of Mbps.
4366  **/
4367 uint32_t
4368 lpfc_sli_port_speed_get(struct lpfc_hba *phba)
4369 {
4370 	uint32_t link_speed;
4371 
4372 	if (!lpfc_is_link_up(phba))
4373 		return 0;
4374 
4375 	if (phba->sli_rev <= LPFC_SLI_REV3) {
4376 		switch (phba->fc_linkspeed) {
4377 		case LPFC_LINK_SPEED_1GHZ:
4378 			link_speed = 1000;
4379 			break;
4380 		case LPFC_LINK_SPEED_2GHZ:
4381 			link_speed = 2000;
4382 			break;
4383 		case LPFC_LINK_SPEED_4GHZ:
4384 			link_speed = 4000;
4385 			break;
4386 		case LPFC_LINK_SPEED_8GHZ:
4387 			link_speed = 8000;
4388 			break;
4389 		case LPFC_LINK_SPEED_10GHZ:
4390 			link_speed = 10000;
4391 			break;
4392 		case LPFC_LINK_SPEED_16GHZ:
4393 			link_speed = 16000;
4394 			break;
4395 		default:
4396 			link_speed = 0;
4397 		}
4398 	} else {
4399 		if (phba->sli4_hba.link_state.logical_speed)
4400 			link_speed =
4401 			      phba->sli4_hba.link_state.logical_speed;
4402 		else
4403 			link_speed = phba->sli4_hba.link_state.speed;
4404 	}
4405 	return link_speed;
4406 }
4407 
4408 /**
4409  * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
4410  * @phba: pointer to lpfc hba data structure.
4411  * @evt_code: asynchronous event code.
4412  * @speed_code: asynchronous event link speed code.
4413  *
4414  * This routine is to parse the giving SLI4 async event link speed code into
4415  * value of Mbps for the link speed.
4416  *
4417  * Return: link speed in terms of Mbps.
4418  **/
4419 static uint32_t
4420 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
4421 			   uint8_t speed_code)
4422 {
4423 	uint32_t port_speed;
4424 
4425 	switch (evt_code) {
4426 	case LPFC_TRAILER_CODE_LINK:
4427 		switch (speed_code) {
4428 		case LPFC_ASYNC_LINK_SPEED_ZERO:
4429 			port_speed = 0;
4430 			break;
4431 		case LPFC_ASYNC_LINK_SPEED_10MBPS:
4432 			port_speed = 10;
4433 			break;
4434 		case LPFC_ASYNC_LINK_SPEED_100MBPS:
4435 			port_speed = 100;
4436 			break;
4437 		case LPFC_ASYNC_LINK_SPEED_1GBPS:
4438 			port_speed = 1000;
4439 			break;
4440 		case LPFC_ASYNC_LINK_SPEED_10GBPS:
4441 			port_speed = 10000;
4442 			break;
4443 		case LPFC_ASYNC_LINK_SPEED_20GBPS:
4444 			port_speed = 20000;
4445 			break;
4446 		case LPFC_ASYNC_LINK_SPEED_25GBPS:
4447 			port_speed = 25000;
4448 			break;
4449 		case LPFC_ASYNC_LINK_SPEED_40GBPS:
4450 			port_speed = 40000;
4451 			break;
4452 		default:
4453 			port_speed = 0;
4454 		}
4455 		break;
4456 	case LPFC_TRAILER_CODE_FC:
4457 		switch (speed_code) {
4458 		case LPFC_FC_LA_SPEED_UNKNOWN:
4459 			port_speed = 0;
4460 			break;
4461 		case LPFC_FC_LA_SPEED_1G:
4462 			port_speed = 1000;
4463 			break;
4464 		case LPFC_FC_LA_SPEED_2G:
4465 			port_speed = 2000;
4466 			break;
4467 		case LPFC_FC_LA_SPEED_4G:
4468 			port_speed = 4000;
4469 			break;
4470 		case LPFC_FC_LA_SPEED_8G:
4471 			port_speed = 8000;
4472 			break;
4473 		case LPFC_FC_LA_SPEED_10G:
4474 			port_speed = 10000;
4475 			break;
4476 		case LPFC_FC_LA_SPEED_16G:
4477 			port_speed = 16000;
4478 			break;
4479 		case LPFC_FC_LA_SPEED_32G:
4480 			port_speed = 32000;
4481 			break;
4482 		case LPFC_FC_LA_SPEED_64G:
4483 			port_speed = 64000;
4484 			break;
4485 		case LPFC_FC_LA_SPEED_128G:
4486 			port_speed = 128000;
4487 			break;
4488 		default:
4489 			port_speed = 0;
4490 		}
4491 		break;
4492 	default:
4493 		port_speed = 0;
4494 	}
4495 	return port_speed;
4496 }
4497 
4498 /**
4499  * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
4500  * @phba: pointer to lpfc hba data structure.
4501  * @acqe_link: pointer to the async link completion queue entry.
4502  *
4503  * This routine is to handle the SLI4 asynchronous FCoE link event.
4504  **/
4505 static void
4506 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
4507 			 struct lpfc_acqe_link *acqe_link)
4508 {
4509 	struct lpfc_dmabuf *mp;
4510 	LPFC_MBOXQ_t *pmb;
4511 	MAILBOX_t *mb;
4512 	struct lpfc_mbx_read_top *la;
4513 	uint8_t att_type;
4514 	int rc;
4515 
4516 	att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
4517 	if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
4518 		return;
4519 	phba->fcoe_eventtag = acqe_link->event_tag;
4520 	pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4521 	if (!pmb) {
4522 		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4523 				"0395 The mboxq allocation failed\n");
4524 		return;
4525 	}
4526 	mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4527 	if (!mp) {
4528 		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4529 				"0396 The lpfc_dmabuf allocation failed\n");
4530 		goto out_free_pmb;
4531 	}
4532 	mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
4533 	if (!mp->virt) {
4534 		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4535 				"0397 The mbuf allocation failed\n");
4536 		goto out_free_dmabuf;
4537 	}
4538 
4539 	/* Cleanup any outstanding ELS commands */
4540 	lpfc_els_flush_all_cmd(phba);
4541 
4542 	/* Block ELS IOCBs until we have done process link event */
4543 	phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
4544 
4545 	/* Update link event statistics */
4546 	phba->sli.slistat.link_event++;
4547 
4548 	/* Create lpfc_handle_latt mailbox command from link ACQE */
4549 	lpfc_read_topology(phba, pmb, mp);
4550 	pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
4551 	pmb->vport = phba->pport;
4552 
4553 	/* Keep the link status for extra SLI4 state machine reference */
4554 	phba->sli4_hba.link_state.speed =
4555 			lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
4556 				bf_get(lpfc_acqe_link_speed, acqe_link));
4557 	phba->sli4_hba.link_state.duplex =
4558 				bf_get(lpfc_acqe_link_duplex, acqe_link);
4559 	phba->sli4_hba.link_state.status =
4560 				bf_get(lpfc_acqe_link_status, acqe_link);
4561 	phba->sli4_hba.link_state.type =
4562 				bf_get(lpfc_acqe_link_type, acqe_link);
4563 	phba->sli4_hba.link_state.number =
4564 				bf_get(lpfc_acqe_link_number, acqe_link);
4565 	phba->sli4_hba.link_state.fault =
4566 				bf_get(lpfc_acqe_link_fault, acqe_link);
4567 	phba->sli4_hba.link_state.logical_speed =
4568 			bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
4569 
4570 	lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4571 			"2900 Async FC/FCoE Link event - Speed:%dGBit "
4572 			"duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
4573 			"Logical speed:%dMbps Fault:%d\n",
4574 			phba->sli4_hba.link_state.speed,
4575 			phba->sli4_hba.link_state.topology,
4576 			phba->sli4_hba.link_state.status,
4577 			phba->sli4_hba.link_state.type,
4578 			phba->sli4_hba.link_state.number,
4579 			phba->sli4_hba.link_state.logical_speed,
4580 			phba->sli4_hba.link_state.fault);
4581 	/*
4582 	 * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
4583 	 * topology info. Note: Optional for non FC-AL ports.
4584 	 */
4585 	if (!(phba->hba_flag & HBA_FCOE_MODE)) {
4586 		rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4587 		if (rc == MBX_NOT_FINISHED)
4588 			goto out_free_dmabuf;
4589 		return;
4590 	}
4591 	/*
4592 	 * For FCoE Mode: fill in all the topology information we need and call
4593 	 * the READ_TOPOLOGY completion routine to continue without actually
4594 	 * sending the READ_TOPOLOGY mailbox command to the port.
4595 	 */
4596 	/* Initialize completion status */
4597 	mb = &pmb->u.mb;
4598 	mb->mbxStatus = MBX_SUCCESS;
4599 
4600 	/* Parse port fault information field */
4601 	lpfc_sli4_parse_latt_fault(phba, acqe_link);
4602 
4603 	/* Parse and translate link attention fields */
4604 	la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
4605 	la->eventTag = acqe_link->event_tag;
4606 	bf_set(lpfc_mbx_read_top_att_type, la, att_type);
4607 	bf_set(lpfc_mbx_read_top_link_spd, la,
4608 	       (bf_get(lpfc_acqe_link_speed, acqe_link)));
4609 
4610 	/* Fake the the following irrelvant fields */
4611 	bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
4612 	bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
4613 	bf_set(lpfc_mbx_read_top_il, la, 0);
4614 	bf_set(lpfc_mbx_read_top_pb, la, 0);
4615 	bf_set(lpfc_mbx_read_top_fa, la, 0);
4616 	bf_set(lpfc_mbx_read_top_mm, la, 0);
4617 
4618 	/* Invoke the lpfc_handle_latt mailbox command callback function */
4619 	lpfc_mbx_cmpl_read_topology(phba, pmb);
4620 
4621 	return;
4622 
4623 out_free_dmabuf:
4624 	kfree(mp);
4625 out_free_pmb:
4626 	mempool_free(pmb, phba->mbox_mem_pool);
4627 }
4628 
4629 /**
4630  * lpfc_async_link_speed_to_read_top - Parse async evt link speed code to read
4631  * topology.
4632  * @phba: pointer to lpfc hba data structure.
4633  * @evt_code: asynchronous event code.
4634  * @speed_code: asynchronous event link speed code.
4635  *
4636  * This routine is to parse the giving SLI4 async event link speed code into
4637  * value of Read topology link speed.
4638  *
4639  * Return: link speed in terms of Read topology.
4640  **/
4641 static uint8_t
4642 lpfc_async_link_speed_to_read_top(struct lpfc_hba *phba, uint8_t speed_code)
4643 {
4644 	uint8_t port_speed;
4645 
4646 	switch (speed_code) {
4647 	case LPFC_FC_LA_SPEED_1G:
4648 		port_speed = LPFC_LINK_SPEED_1GHZ;
4649 		break;
4650 	case LPFC_FC_LA_SPEED_2G:
4651 		port_speed = LPFC_LINK_SPEED_2GHZ;
4652 		break;
4653 	case LPFC_FC_LA_SPEED_4G:
4654 		port_speed = LPFC_LINK_SPEED_4GHZ;
4655 		break;
4656 	case LPFC_FC_LA_SPEED_8G:
4657 		port_speed = LPFC_LINK_SPEED_8GHZ;
4658 		break;
4659 	case LPFC_FC_LA_SPEED_16G:
4660 		port_speed = LPFC_LINK_SPEED_16GHZ;
4661 		break;
4662 	case LPFC_FC_LA_SPEED_32G:
4663 		port_speed = LPFC_LINK_SPEED_32GHZ;
4664 		break;
4665 	case LPFC_FC_LA_SPEED_64G:
4666 		port_speed = LPFC_LINK_SPEED_64GHZ;
4667 		break;
4668 	case LPFC_FC_LA_SPEED_128G:
4669 		port_speed = LPFC_LINK_SPEED_128GHZ;
4670 		break;
4671 	case LPFC_FC_LA_SPEED_256G:
4672 		port_speed = LPFC_LINK_SPEED_256GHZ;
4673 		break;
4674 	default:
4675 		port_speed = 0;
4676 		break;
4677 	}
4678 
4679 	return port_speed;
4680 }
4681 
4682 #define trunk_link_status(__idx)\
4683 	bf_get(lpfc_acqe_fc_la_trunk_config_port##__idx, acqe_fc) ?\
4684 	       ((phba->trunk_link.link##__idx.state == LPFC_LINK_UP) ?\
4685 		"Link up" : "Link down") : "NA"
4686 /* Did port __idx reported an error */
4687 #define trunk_port_fault(__idx)\
4688 	bf_get(lpfc_acqe_fc_la_trunk_config_port##__idx, acqe_fc) ?\
4689 	       (port_fault & (1 << __idx) ? "YES" : "NO") : "NA"
4690 
4691 static void
4692 lpfc_update_trunk_link_status(struct lpfc_hba *phba,
4693 			      struct lpfc_acqe_fc_la *acqe_fc)
4694 {
4695 	uint8_t port_fault = bf_get(lpfc_acqe_fc_la_trunk_linkmask, acqe_fc);
4696 	uint8_t err = bf_get(lpfc_acqe_fc_la_trunk_fault, acqe_fc);
4697 
4698 	phba->sli4_hba.link_state.speed =
4699 		lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
4700 				bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
4701 
4702 	phba->sli4_hba.link_state.logical_speed =
4703 				bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc);
4704 	/* We got FC link speed, convert to fc_linkspeed (READ_TOPOLOGY) */
4705 	phba->fc_linkspeed =
4706 		 lpfc_async_link_speed_to_read_top(
4707 				phba,
4708 				bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
4709 
4710 	if (bf_get(lpfc_acqe_fc_la_trunk_config_port0, acqe_fc)) {
4711 		phba->trunk_link.link0.state =
4712 			bf_get(lpfc_acqe_fc_la_trunk_link_status_port0, acqe_fc)
4713 			? LPFC_LINK_UP : LPFC_LINK_DOWN;
4714 		phba->trunk_link.link0.fault = port_fault & 0x1 ? err : 0;
4715 	}
4716 	if (bf_get(lpfc_acqe_fc_la_trunk_config_port1, acqe_fc)) {
4717 		phba->trunk_link.link1.state =
4718 			bf_get(lpfc_acqe_fc_la_trunk_link_status_port1, acqe_fc)
4719 			? LPFC_LINK_UP : LPFC_LINK_DOWN;
4720 		phba->trunk_link.link1.fault = port_fault & 0x2 ? err : 0;
4721 	}
4722 	if (bf_get(lpfc_acqe_fc_la_trunk_config_port2, acqe_fc)) {
4723 		phba->trunk_link.link2.state =
4724 			bf_get(lpfc_acqe_fc_la_trunk_link_status_port2, acqe_fc)
4725 			? LPFC_LINK_UP : LPFC_LINK_DOWN;
4726 		phba->trunk_link.link2.fault = port_fault & 0x4 ? err : 0;
4727 	}
4728 	if (bf_get(lpfc_acqe_fc_la_trunk_config_port3, acqe_fc)) {
4729 		phba->trunk_link.link3.state =
4730 			bf_get(lpfc_acqe_fc_la_trunk_link_status_port3, acqe_fc)
4731 			? LPFC_LINK_UP : LPFC_LINK_DOWN;
4732 		phba->trunk_link.link3.fault = port_fault & 0x8 ? err : 0;
4733 	}
4734 
4735 	lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4736 			"2910 Async FC Trunking Event - Speed:%d\n"
4737 			"\tLogical speed:%d "
4738 			"port0: %s port1: %s port2: %s port3: %s\n",
4739 			phba->sli4_hba.link_state.speed,
4740 			phba->sli4_hba.link_state.logical_speed,
4741 			trunk_link_status(0), trunk_link_status(1),
4742 			trunk_link_status(2), trunk_link_status(3));
4743 
4744 	if (port_fault)
4745 		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4746 				"3202 trunk error:0x%x (%s) seen on port0:%s "
4747 				/*
4748 				 * SLI-4: We have only 0xA error codes
4749 				 * defined as of now. print an appropriate
4750 				 * message in case driver needs to be updated.
4751 				 */
4752 				"port1:%s port2:%s port3:%s\n", err, err > 0xA ?
4753 				"UNDEFINED. update driver." : trunk_errmsg[err],
4754 				trunk_port_fault(0), trunk_port_fault(1),
4755 				trunk_port_fault(2), trunk_port_fault(3));
4756 }
4757 
4758 
4759 /**
4760  * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
4761  * @phba: pointer to lpfc hba data structure.
4762  * @acqe_fc: pointer to the async fc completion queue entry.
4763  *
4764  * This routine is to handle the SLI4 asynchronous FC event. It will simply log
4765  * that the event was received and then issue a read_topology mailbox command so
4766  * that the rest of the driver will treat it the same as SLI3.
4767  **/
4768 static void
4769 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
4770 {
4771 	struct lpfc_dmabuf *mp;
4772 	LPFC_MBOXQ_t *pmb;
4773 	MAILBOX_t *mb;
4774 	struct lpfc_mbx_read_top *la;
4775 	int rc;
4776 
4777 	if (bf_get(lpfc_trailer_type, acqe_fc) !=
4778 	    LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
4779 		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4780 				"2895 Non FC link Event detected.(%d)\n",
4781 				bf_get(lpfc_trailer_type, acqe_fc));
4782 		return;
4783 	}
4784 
4785 	if (bf_get(lpfc_acqe_fc_la_att_type, acqe_fc) ==
4786 	    LPFC_FC_LA_TYPE_TRUNKING_EVENT) {
4787 		lpfc_update_trunk_link_status(phba, acqe_fc);
4788 		return;
4789 	}
4790 
4791 	/* Keep the link status for extra SLI4 state machine reference */
4792 	phba->sli4_hba.link_state.speed =
4793 			lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
4794 				bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
4795 	phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
4796 	phba->sli4_hba.link_state.topology =
4797 				bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
4798 	phba->sli4_hba.link_state.status =
4799 				bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
4800 	phba->sli4_hba.link_state.type =
4801 				bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
4802 	phba->sli4_hba.link_state.number =
4803 				bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
4804 	phba->sli4_hba.link_state.fault =
4805 				bf_get(lpfc_acqe_link_fault, acqe_fc);
4806 	phba->sli4_hba.link_state.logical_speed =
4807 				bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
4808 	lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4809 			"2896 Async FC event - Speed:%dGBaud Topology:x%x "
4810 			"LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
4811 			"%dMbps Fault:%d\n",
4812 			phba->sli4_hba.link_state.speed,
4813 			phba->sli4_hba.link_state.topology,
4814 			phba->sli4_hba.link_state.status,
4815 			phba->sli4_hba.link_state.type,
4816 			phba->sli4_hba.link_state.number,
4817 			phba->sli4_hba.link_state.logical_speed,
4818 			phba->sli4_hba.link_state.fault);
4819 	pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4820 	if (!pmb) {
4821 		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4822 				"2897 The mboxq allocation failed\n");
4823 		return;
4824 	}
4825 	mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4826 	if (!mp) {
4827 		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4828 				"2898 The lpfc_dmabuf allocation failed\n");
4829 		goto out_free_pmb;
4830 	}
4831 	mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
4832 	if (!mp->virt) {
4833 		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4834 				"2899 The mbuf allocation failed\n");
4835 		goto out_free_dmabuf;
4836 	}
4837 
4838 	/* Cleanup any outstanding ELS commands */
4839 	lpfc_els_flush_all_cmd(phba);
4840 
4841 	/* Block ELS IOCBs until we have done process link event */
4842 	phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
4843 
4844 	/* Update link event statistics */
4845 	phba->sli.slistat.link_event++;
4846 
4847 	/* Create lpfc_handle_latt mailbox command from link ACQE */
4848 	lpfc_read_topology(phba, pmb, mp);
4849 	pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
4850 	pmb->vport = phba->pport;
4851 
4852 	if (phba->sli4_hba.link_state.status != LPFC_FC_LA_TYPE_LINK_UP) {
4853 		phba->link_flag &= ~(LS_MDS_LINK_DOWN | LS_MDS_LOOPBACK);
4854 
4855 		switch (phba->sli4_hba.link_state.status) {
4856 		case LPFC_FC_LA_TYPE_MDS_LINK_DOWN:
4857 			phba->link_flag |= LS_MDS_LINK_DOWN;
4858 			break;
4859 		case LPFC_FC_LA_TYPE_MDS_LOOPBACK:
4860 			phba->link_flag |= LS_MDS_LOOPBACK;
4861 			break;
4862 		default:
4863 			break;
4864 		}
4865 
4866 		/* Initialize completion status */
4867 		mb = &pmb->u.mb;
4868 		mb->mbxStatus = MBX_SUCCESS;
4869 
4870 		/* Parse port fault information field */
4871 		lpfc_sli4_parse_latt_fault(phba, (void *)acqe_fc);
4872 
4873 		/* Parse and translate link attention fields */
4874 		la = (struct lpfc_mbx_read_top *)&pmb->u.mb.un.varReadTop;
4875 		la->eventTag = acqe_fc->event_tag;
4876 
4877 		if (phba->sli4_hba.link_state.status ==
4878 		    LPFC_FC_LA_TYPE_UNEXP_WWPN) {
4879 			bf_set(lpfc_mbx_read_top_att_type, la,
4880 			       LPFC_FC_LA_TYPE_UNEXP_WWPN);
4881 		} else {
4882 			bf_set(lpfc_mbx_read_top_att_type, la,
4883 			       LPFC_FC_LA_TYPE_LINK_DOWN);
4884 		}
4885 		/* Invoke the mailbox command callback function */
4886 		lpfc_mbx_cmpl_read_topology(phba, pmb);
4887 
4888 		return;
4889 	}
4890 
4891 	rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4892 	if (rc == MBX_NOT_FINISHED)
4893 		goto out_free_dmabuf;
4894 	return;
4895 
4896 out_free_dmabuf:
4897 	kfree(mp);
4898 out_free_pmb:
4899 	mempool_free(pmb, phba->mbox_mem_pool);
4900 }
4901 
4902 /**
4903  * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
4904  * @phba: pointer to lpfc hba data structure.
4905  * @acqe_fc: pointer to the async SLI completion queue entry.
4906  *
4907  * This routine is to handle the SLI4 asynchronous SLI events.
4908  **/
4909 static void
4910 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
4911 {
4912 	char port_name;
4913 	char message[128];
4914 	uint8_t status;
4915 	uint8_t evt_type;
4916 	uint8_t operational = 0;
4917 	struct temp_event temp_event_data;
4918 	struct lpfc_acqe_misconfigured_event *misconfigured;
4919 	struct Scsi_Host  *shost;
4920 	struct lpfc_vport **vports;
4921 	int rc, i;
4922 
4923 	evt_type = bf_get(lpfc_trailer_type, acqe_sli);
4924 
4925 	lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4926 			"2901 Async SLI event - Event Data1:x%08x Event Data2:"
4927 			"x%08x SLI Event Type:%d\n",
4928 			acqe_sli->event_data1, acqe_sli->event_data2,
4929 			evt_type);
4930 
4931 	port_name = phba->Port[0];
4932 	if (port_name == 0x00)
4933 		port_name = '?'; /* get port name is empty */
4934 
4935 	switch (evt_type) {
4936 	case LPFC_SLI_EVENT_TYPE_OVER_TEMP:
4937 		temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
4938 		temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
4939 		temp_event_data.data = (uint32_t)acqe_sli->event_data1;
4940 
4941 		lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
4942 				"3190 Over Temperature:%d Celsius- Port Name %c\n",
4943 				acqe_sli->event_data1, port_name);
4944 
4945 		phba->sfp_warning |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
4946 		shost = lpfc_shost_from_vport(phba->pport);
4947 		fc_host_post_vendor_event(shost, fc_get_event_number(),
4948 					  sizeof(temp_event_data),
4949 					  (char *)&temp_event_data,
4950 					  SCSI_NL_VID_TYPE_PCI
4951 					  | PCI_VENDOR_ID_EMULEX);
4952 		break;
4953 	case LPFC_SLI_EVENT_TYPE_NORM_TEMP:
4954 		temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
4955 		temp_event_data.event_code = LPFC_NORMAL_TEMP;
4956 		temp_event_data.data = (uint32_t)acqe_sli->event_data1;
4957 
4958 		lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4959 				"3191 Normal Temperature:%d Celsius - Port Name %c\n",
4960 				acqe_sli->event_data1, port_name);
4961 
4962 		shost = lpfc_shost_from_vport(phba->pport);
4963 		fc_host_post_vendor_event(shost, fc_get_event_number(),
4964 					  sizeof(temp_event_data),
4965 					  (char *)&temp_event_data,
4966 					  SCSI_NL_VID_TYPE_PCI
4967 					  | PCI_VENDOR_ID_EMULEX);
4968 		break;
4969 	case LPFC_SLI_EVENT_TYPE_MISCONFIGURED:
4970 		misconfigured = (struct lpfc_acqe_misconfigured_event *)
4971 					&acqe_sli->event_data1;
4972 
4973 		/* fetch the status for this port */
4974 		switch (phba->sli4_hba.lnk_info.lnk_no) {
4975 		case LPFC_LINK_NUMBER_0:
4976 			status = bf_get(lpfc_sli_misconfigured_port0_state,
4977 					&misconfigured->theEvent);
4978 			operational = bf_get(lpfc_sli_misconfigured_port0_op,
4979 					&misconfigured->theEvent);
4980 			break;
4981 		case LPFC_LINK_NUMBER_1:
4982 			status = bf_get(lpfc_sli_misconfigured_port1_state,
4983 					&misconfigured->theEvent);
4984 			operational = bf_get(lpfc_sli_misconfigured_port1_op,
4985 					&misconfigured->theEvent);
4986 			break;
4987 		case LPFC_LINK_NUMBER_2:
4988 			status = bf_get(lpfc_sli_misconfigured_port2_state,
4989 					&misconfigured->theEvent);
4990 			operational = bf_get(lpfc_sli_misconfigured_port2_op,
4991 					&misconfigured->theEvent);
4992 			break;
4993 		case LPFC_LINK_NUMBER_3:
4994 			status = bf_get(lpfc_sli_misconfigured_port3_state,
4995 					&misconfigured->theEvent);
4996 			operational = bf_get(lpfc_sli_misconfigured_port3_op,
4997 					&misconfigured->theEvent);
4998 			break;
4999 		default:
5000 			lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5001 					"3296 "
5002 					"LPFC_SLI_EVENT_TYPE_MISCONFIGURED "
5003 					"event: Invalid link %d",
5004 					phba->sli4_hba.lnk_info.lnk_no);
5005 			return;
5006 		}
5007 
5008 		/* Skip if optic state unchanged */
5009 		if (phba->sli4_hba.lnk_info.optic_state == status)
5010 			return;
5011 
5012 		switch (status) {
5013 		case LPFC_SLI_EVENT_STATUS_VALID:
5014 			sprintf(message, "Physical Link is functional");
5015 			break;
5016 		case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
5017 			sprintf(message, "Optics faulted/incorrectly "
5018 				"installed/not installed - Reseat optics, "
5019 				"if issue not resolved, replace.");
5020 			break;
5021 		case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
5022 			sprintf(message,
5023 				"Optics of two types installed - Remove one "
5024 				"optic or install matching pair of optics.");
5025 			break;
5026 		case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
5027 			sprintf(message, "Incompatible optics - Replace with "
5028 				"compatible optics for card to function.");
5029 			break;
5030 		case LPFC_SLI_EVENT_STATUS_UNQUALIFIED:
5031 			sprintf(message, "Unqualified optics - Replace with "
5032 				"Avago optics for Warranty and Technical "
5033 				"Support - Link is%s operational",
5034 				(operational) ? " not" : "");
5035 			break;
5036 		case LPFC_SLI_EVENT_STATUS_UNCERTIFIED:
5037 			sprintf(message, "Uncertified optics - Replace with "
5038 				"Avago-certified optics to enable link "
5039 				"operation - Link is%s operational",
5040 				(operational) ? " not" : "");
5041 			break;
5042 		default:
5043 			/* firmware is reporting a status we don't know about */
5044 			sprintf(message, "Unknown event status x%02x", status);
5045 			break;
5046 		}
5047 
5048 		/* Issue READ_CONFIG mbox command to refresh supported speeds */
5049 		rc = lpfc_sli4_read_config(phba);
5050 		if (rc) {
5051 			phba->lmt = 0;
5052 			lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5053 					"3194 Unable to retrieve supported "
5054 					"speeds, rc = 0x%x\n", rc);
5055 		}
5056 		vports = lpfc_create_vport_work_array(phba);
5057 		if (vports != NULL) {
5058 			for (i = 0; i <= phba->max_vports && vports[i] != NULL;
5059 					i++) {
5060 				shost = lpfc_shost_from_vport(vports[i]);
5061 				lpfc_host_supported_speeds_set(shost);
5062 			}
5063 		}
5064 		lpfc_destroy_vport_work_array(phba, vports);
5065 
5066 		phba->sli4_hba.lnk_info.optic_state = status;
5067 		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5068 				"3176 Port Name %c %s\n", port_name, message);
5069 		break;
5070 	case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT:
5071 		lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5072 				"3192 Remote DPort Test Initiated - "
5073 				"Event Data1:x%08x Event Data2: x%08x\n",
5074 				acqe_sli->event_data1, acqe_sli->event_data2);
5075 		break;
5076 	default:
5077 		lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5078 				"3193 Async SLI event - Event Data1:x%08x Event Data2:"
5079 				"x%08x SLI Event Type:%d\n",
5080 				acqe_sli->event_data1, acqe_sli->event_data2,
5081 				evt_type);
5082 		break;
5083 	}
5084 }
5085 
5086 /**
5087  * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
5088  * @vport: pointer to vport data structure.
5089  *
5090  * This routine is to perform Clear Virtual Link (CVL) on a vport in
5091  * response to a CVL event.
5092  *
5093  * Return the pointer to the ndlp with the vport if successful, otherwise
5094  * return NULL.
5095  **/
5096 static struct lpfc_nodelist *
5097 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
5098 {
5099 	struct lpfc_nodelist *ndlp;
5100 	struct Scsi_Host *shost;
5101 	struct lpfc_hba *phba;
5102 
5103 	if (!vport)
5104 		return NULL;
5105 	phba = vport->phba;
5106 	if (!phba)
5107 		return NULL;
5108 	ndlp = lpfc_findnode_did(vport, Fabric_DID);
5109 	if (!ndlp) {
5110 		/* Cannot find existing Fabric ndlp, so allocate a new one */
5111 		ndlp = lpfc_nlp_init(vport, Fabric_DID);
5112 		if (!ndlp)
5113 			return 0;
5114 		/* Set the node type */
5115 		ndlp->nlp_type |= NLP_FABRIC;
5116 		/* Put ndlp onto node list */
5117 		lpfc_enqueue_node(vport, ndlp);
5118 	} else if (!NLP_CHK_NODE_ACT(ndlp)) {
5119 		/* re-setup ndlp without removing from node list */
5120 		ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
5121 		if (!ndlp)
5122 			return 0;
5123 	}
5124 	if ((phba->pport->port_state < LPFC_FLOGI) &&
5125 		(phba->pport->port_state != LPFC_VPORT_FAILED))
5126 		return NULL;
5127 	/* If virtual link is not yet instantiated ignore CVL */
5128 	if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
5129 		&& (vport->port_state != LPFC_VPORT_FAILED))
5130 		return NULL;
5131 	shost = lpfc_shost_from_vport(vport);
5132 	if (!shost)
5133 		return NULL;
5134 	lpfc_linkdown_port(vport);
5135 	lpfc_cleanup_pending_mbox(vport);
5136 	spin_lock_irq(shost->host_lock);
5137 	vport->fc_flag |= FC_VPORT_CVL_RCVD;
5138 	spin_unlock_irq(shost->host_lock);
5139 
5140 	return ndlp;
5141 }
5142 
5143 /**
5144  * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
5145  * @vport: pointer to lpfc hba data structure.
5146  *
5147  * This routine is to perform Clear Virtual Link (CVL) on all vports in
5148  * response to a FCF dead event.
5149  **/
5150 static void
5151 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
5152 {
5153 	struct lpfc_vport **vports;
5154 	int i;
5155 
5156 	vports = lpfc_create_vport_work_array(phba);
5157 	if (vports)
5158 		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
5159 			lpfc_sli4_perform_vport_cvl(vports[i]);
5160 	lpfc_destroy_vport_work_array(phba, vports);
5161 }
5162 
5163 /**
5164  * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
5165  * @phba: pointer to lpfc hba data structure.
5166  * @acqe_link: pointer to the async fcoe completion queue entry.
5167  *
5168  * This routine is to handle the SLI4 asynchronous fcoe event.
5169  **/
5170 static void
5171 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
5172 			struct lpfc_acqe_fip *acqe_fip)
5173 {
5174 	uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
5175 	int rc;
5176 	struct lpfc_vport *vport;
5177 	struct lpfc_nodelist *ndlp;
5178 	struct Scsi_Host  *shost;
5179 	int active_vlink_present;
5180 	struct lpfc_vport **vports;
5181 	int i;
5182 
5183 	phba->fc_eventTag = acqe_fip->event_tag;
5184 	phba->fcoe_eventtag = acqe_fip->event_tag;
5185 	switch (event_type) {
5186 	case LPFC_FIP_EVENT_TYPE_NEW_FCF:
5187 	case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
5188 		if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
5189 			lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5190 					LOG_DISCOVERY,
5191 					"2546 New FCF event, evt_tag:x%x, "
5192 					"index:x%x\n",
5193 					acqe_fip->event_tag,
5194 					acqe_fip->index);
5195 		else
5196 			lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
5197 					LOG_DISCOVERY,
5198 					"2788 FCF param modified event, "
5199 					"evt_tag:x%x, index:x%x\n",
5200 					acqe_fip->event_tag,
5201 					acqe_fip->index);
5202 		if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
5203 			/*
5204 			 * During period of FCF discovery, read the FCF
5205 			 * table record indexed by the event to update
5206 			 * FCF roundrobin failover eligible FCF bmask.
5207 			 */
5208 			lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
5209 					LOG_DISCOVERY,
5210 					"2779 Read FCF (x%x) for updating "
5211 					"roundrobin FCF failover bmask\n",
5212 					acqe_fip->index);
5213 			rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
5214 		}
5215 
5216 		/* If the FCF discovery is in progress, do nothing. */
5217 		spin_lock_irq(&phba->hbalock);
5218 		if (phba->hba_flag & FCF_TS_INPROG) {
5219 			spin_unlock_irq(&phba->hbalock);
5220 			break;
5221 		}
5222 		/* If fast FCF failover rescan event is pending, do nothing */
5223 		if (phba->fcf.fcf_flag & (FCF_REDISC_EVT | FCF_REDISC_PEND)) {
5224 			spin_unlock_irq(&phba->hbalock);
5225 			break;
5226 		}
5227 
5228 		/* If the FCF has been in discovered state, do nothing. */
5229 		if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
5230 			spin_unlock_irq(&phba->hbalock);
5231 			break;
5232 		}
5233 		spin_unlock_irq(&phba->hbalock);
5234 
5235 		/* Otherwise, scan the entire FCF table and re-discover SAN */
5236 		lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5237 				"2770 Start FCF table scan per async FCF "
5238 				"event, evt_tag:x%x, index:x%x\n",
5239 				acqe_fip->event_tag, acqe_fip->index);
5240 		rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
5241 						     LPFC_FCOE_FCF_GET_FIRST);
5242 		if (rc)
5243 			lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5244 					"2547 Issue FCF scan read FCF mailbox "
5245 					"command failed (x%x)\n", rc);
5246 		break;
5247 
5248 	case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
5249 		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5250 			"2548 FCF Table full count 0x%x tag 0x%x\n",
5251 			bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
5252 			acqe_fip->event_tag);
5253 		break;
5254 
5255 	case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
5256 		phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
5257 		lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5258 			"2549 FCF (x%x) disconnected from network, "
5259 			"tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
5260 		/*
5261 		 * If we are in the middle of FCF failover process, clear
5262 		 * the corresponding FCF bit in the roundrobin bitmap.
5263 		 */
5264 		spin_lock_irq(&phba->hbalock);
5265 		if ((phba->fcf.fcf_flag & FCF_DISCOVERY) &&
5266 		    (phba->fcf.current_rec.fcf_indx != acqe_fip->index)) {
5267 			spin_unlock_irq(&phba->hbalock);
5268 			/* Update FLOGI FCF failover eligible FCF bmask */
5269 			lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
5270 			break;
5271 		}
5272 		spin_unlock_irq(&phba->hbalock);
5273 
5274 		/* If the event is not for currently used fcf do nothing */
5275 		if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
5276 			break;
5277 
5278 		/*
5279 		 * Otherwise, request the port to rediscover the entire FCF
5280 		 * table for a fast recovery from case that the current FCF
5281 		 * is no longer valid as we are not in the middle of FCF
5282 		 * failover process already.
5283 		 */
5284 		spin_lock_irq(&phba->hbalock);
5285 		/* Mark the fast failover process in progress */
5286 		phba->fcf.fcf_flag |= FCF_DEAD_DISC;
5287 		spin_unlock_irq(&phba->hbalock);
5288 
5289 		lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5290 				"2771 Start FCF fast failover process due to "
5291 				"FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
5292 				"\n", acqe_fip->event_tag, acqe_fip->index);
5293 		rc = lpfc_sli4_redisc_fcf_table(phba);
5294 		if (rc) {
5295 			lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5296 					LOG_DISCOVERY,
5297 					"2772 Issue FCF rediscover mailbox "
5298 					"command failed, fail through to FCF "
5299 					"dead event\n");
5300 			spin_lock_irq(&phba->hbalock);
5301 			phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
5302 			spin_unlock_irq(&phba->hbalock);
5303 			/*
5304 			 * Last resort will fail over by treating this
5305 			 * as a link down to FCF registration.
5306 			 */
5307 			lpfc_sli4_fcf_dead_failthrough(phba);
5308 		} else {
5309 			/* Reset FCF roundrobin bmask for new discovery */
5310 			lpfc_sli4_clear_fcf_rr_bmask(phba);
5311 			/*
5312 			 * Handling fast FCF failover to a DEAD FCF event is
5313 			 * considered equalivant to receiving CVL to all vports.
5314 			 */
5315 			lpfc_sli4_perform_all_vport_cvl(phba);
5316 		}
5317 		break;
5318 	case LPFC_FIP_EVENT_TYPE_CVL:
5319 		phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
5320 		lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5321 			"2718 Clear Virtual Link Received for VPI 0x%x"
5322 			" tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
5323 
5324 		vport = lpfc_find_vport_by_vpid(phba,
5325 						acqe_fip->index);
5326 		ndlp = lpfc_sli4_perform_vport_cvl(vport);
5327 		if (!ndlp)
5328 			break;
5329 		active_vlink_present = 0;
5330 
5331 		vports = lpfc_create_vport_work_array(phba);
5332 		if (vports) {
5333 			for (i = 0; i <= phba->max_vports && vports[i] != NULL;
5334 					i++) {
5335 				if ((!(vports[i]->fc_flag &
5336 					FC_VPORT_CVL_RCVD)) &&
5337 					(vports[i]->port_state > LPFC_FDISC)) {
5338 					active_vlink_present = 1;
5339 					break;
5340 				}
5341 			}
5342 			lpfc_destroy_vport_work_array(phba, vports);
5343 		}
5344 
5345 		/*
5346 		 * Don't re-instantiate if vport is marked for deletion.
5347 		 * If we are here first then vport_delete is going to wait
5348 		 * for discovery to complete.
5349 		 */
5350 		if (!(vport->load_flag & FC_UNLOADING) &&
5351 					active_vlink_present) {
5352 			/*
5353 			 * If there are other active VLinks present,
5354 			 * re-instantiate the Vlink using FDISC.
5355 			 */
5356 			mod_timer(&ndlp->nlp_delayfunc,
5357 				  jiffies + msecs_to_jiffies(1000));
5358 			shost = lpfc_shost_from_vport(vport);
5359 			spin_lock_irq(shost->host_lock);
5360 			ndlp->nlp_flag |= NLP_DELAY_TMO;
5361 			spin_unlock_irq(shost->host_lock);
5362 			ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
5363 			vport->port_state = LPFC_FDISC;
5364 		} else {
5365 			/*
5366 			 * Otherwise, we request port to rediscover
5367 			 * the entire FCF table for a fast recovery
5368 			 * from possible case that the current FCF
5369 			 * is no longer valid if we are not already
5370 			 * in the FCF failover process.
5371 			 */
5372 			spin_lock_irq(&phba->hbalock);
5373 			if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
5374 				spin_unlock_irq(&phba->hbalock);
5375 				break;
5376 			}
5377 			/* Mark the fast failover process in progress */
5378 			phba->fcf.fcf_flag |= FCF_ACVL_DISC;
5379 			spin_unlock_irq(&phba->hbalock);
5380 			lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
5381 					LOG_DISCOVERY,
5382 					"2773 Start FCF failover per CVL, "
5383 					"evt_tag:x%x\n", acqe_fip->event_tag);
5384 			rc = lpfc_sli4_redisc_fcf_table(phba);
5385 			if (rc) {
5386 				lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5387 						LOG_DISCOVERY,
5388 						"2774 Issue FCF rediscover "
5389 						"mailbox command failed, "
5390 						"through to CVL event\n");
5391 				spin_lock_irq(&phba->hbalock);
5392 				phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
5393 				spin_unlock_irq(&phba->hbalock);
5394 				/*
5395 				 * Last resort will be re-try on the
5396 				 * the current registered FCF entry.
5397 				 */
5398 				lpfc_retry_pport_discovery(phba);
5399 			} else
5400 				/*
5401 				 * Reset FCF roundrobin bmask for new
5402 				 * discovery.
5403 				 */
5404 				lpfc_sli4_clear_fcf_rr_bmask(phba);
5405 		}
5406 		break;
5407 	default:
5408 		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5409 			"0288 Unknown FCoE event type 0x%x event tag "
5410 			"0x%x\n", event_type, acqe_fip->event_tag);
5411 		break;
5412 	}
5413 }
5414 
5415 /**
5416  * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
5417  * @phba: pointer to lpfc hba data structure.
5418  * @acqe_link: pointer to the async dcbx completion queue entry.
5419  *
5420  * This routine is to handle the SLI4 asynchronous dcbx event.
5421  **/
5422 static void
5423 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
5424 			 struct lpfc_acqe_dcbx *acqe_dcbx)
5425 {
5426 	phba->fc_eventTag = acqe_dcbx->event_tag;
5427 	lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5428 			"0290 The SLI4 DCBX asynchronous event is not "
5429 			"handled yet\n");
5430 }
5431 
5432 /**
5433  * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
5434  * @phba: pointer to lpfc hba data structure.
5435  * @acqe_link: pointer to the async grp5 completion queue entry.
5436  *
5437  * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
5438  * is an asynchronous notified of a logical link speed change.  The Port
5439  * reports the logical link speed in units of 10Mbps.
5440  **/
5441 static void
5442 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
5443 			 struct lpfc_acqe_grp5 *acqe_grp5)
5444 {
5445 	uint16_t prev_ll_spd;
5446 
5447 	phba->fc_eventTag = acqe_grp5->event_tag;
5448 	phba->fcoe_eventtag = acqe_grp5->event_tag;
5449 	prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
5450 	phba->sli4_hba.link_state.logical_speed =
5451 		(bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
5452 	lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5453 			"2789 GRP5 Async Event: Updating logical link speed "
5454 			"from %dMbps to %dMbps\n", prev_ll_spd,
5455 			phba->sli4_hba.link_state.logical_speed);
5456 }
5457 
5458 /**
5459  * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
5460  * @phba: pointer to lpfc hba data structure.
5461  *
5462  * This routine is invoked by the worker thread to process all the pending
5463  * SLI4 asynchronous events.
5464  **/
5465 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
5466 {
5467 	struct lpfc_cq_event *cq_event;
5468 
5469 	/* First, declare the async event has been handled */
5470 	spin_lock_irq(&phba->hbalock);
5471 	phba->hba_flag &= ~ASYNC_EVENT;
5472 	spin_unlock_irq(&phba->hbalock);
5473 	/* Now, handle all the async events */
5474 	while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
5475 		/* Get the first event from the head of the event queue */
5476 		spin_lock_irq(&phba->hbalock);
5477 		list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
5478 				 cq_event, struct lpfc_cq_event, list);
5479 		spin_unlock_irq(&phba->hbalock);
5480 		/* Process the asynchronous event */
5481 		switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
5482 		case LPFC_TRAILER_CODE_LINK:
5483 			lpfc_sli4_async_link_evt(phba,
5484 						 &cq_event->cqe.acqe_link);
5485 			break;
5486 		case LPFC_TRAILER_CODE_FCOE:
5487 			lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
5488 			break;
5489 		case LPFC_TRAILER_CODE_DCBX:
5490 			lpfc_sli4_async_dcbx_evt(phba,
5491 						 &cq_event->cqe.acqe_dcbx);
5492 			break;
5493 		case LPFC_TRAILER_CODE_GRP5:
5494 			lpfc_sli4_async_grp5_evt(phba,
5495 						 &cq_event->cqe.acqe_grp5);
5496 			break;
5497 		case LPFC_TRAILER_CODE_FC:
5498 			lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
5499 			break;
5500 		case LPFC_TRAILER_CODE_SLI:
5501 			lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
5502 			break;
5503 		default:
5504 			lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5505 					"1804 Invalid asynchrous event code: "
5506 					"x%x\n", bf_get(lpfc_trailer_code,
5507 					&cq_event->cqe.mcqe_cmpl));
5508 			break;
5509 		}
5510 		/* Free the completion event processed to the free pool */
5511 		lpfc_sli4_cq_event_release(phba, cq_event);
5512 	}
5513 }
5514 
5515 /**
5516  * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
5517  * @phba: pointer to lpfc hba data structure.
5518  *
5519  * This routine is invoked by the worker thread to process FCF table
5520  * rediscovery pending completion event.
5521  **/
5522 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
5523 {
5524 	int rc;
5525 
5526 	spin_lock_irq(&phba->hbalock);
5527 	/* Clear FCF rediscovery timeout event */
5528 	phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
5529 	/* Clear driver fast failover FCF record flag */
5530 	phba->fcf.failover_rec.flag = 0;
5531 	/* Set state for FCF fast failover */
5532 	phba->fcf.fcf_flag |= FCF_REDISC_FOV;
5533 	spin_unlock_irq(&phba->hbalock);
5534 
5535 	/* Scan FCF table from the first entry to re-discover SAN */
5536 	lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5537 			"2777 Start post-quiescent FCF table scan\n");
5538 	rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
5539 	if (rc)
5540 		lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5541 				"2747 Issue FCF scan read FCF mailbox "
5542 				"command failed 0x%x\n", rc);
5543 }
5544 
5545 /**
5546  * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
5547  * @phba: pointer to lpfc hba data structure.
5548  * @dev_grp: The HBA PCI-Device group number.
5549  *
5550  * This routine is invoked to set up the per HBA PCI-Device group function
5551  * API jump table entries.
5552  *
5553  * Return: 0 if success, otherwise -ENODEV
5554  **/
5555 int
5556 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5557 {
5558 	int rc;
5559 
5560 	/* Set up lpfc PCI-device group */
5561 	phba->pci_dev_grp = dev_grp;
5562 
5563 	/* The LPFC_PCI_DEV_OC uses SLI4 */
5564 	if (dev_grp == LPFC_PCI_DEV_OC)
5565 		phba->sli_rev = LPFC_SLI_REV4;
5566 
5567 	/* Set up device INIT API function jump table */
5568 	rc = lpfc_init_api_table_setup(phba, dev_grp);
5569 	if (rc)
5570 		return -ENODEV;
5571 	/* Set up SCSI API function jump table */
5572 	rc = lpfc_scsi_api_table_setup(phba, dev_grp);
5573 	if (rc)
5574 		return -ENODEV;
5575 	/* Set up SLI API function jump table */
5576 	rc = lpfc_sli_api_table_setup(phba, dev_grp);
5577 	if (rc)
5578 		return -ENODEV;
5579 	/* Set up MBOX API function jump table */
5580 	rc = lpfc_mbox_api_table_setup(phba, dev_grp);
5581 	if (rc)
5582 		return -ENODEV;
5583 
5584 	return 0;
5585 }
5586 
5587 /**
5588  * lpfc_log_intr_mode - Log the active interrupt mode
5589  * @phba: pointer to lpfc hba data structure.
5590  * @intr_mode: active interrupt mode adopted.
5591  *
5592  * This routine it invoked to log the currently used active interrupt mode
5593  * to the device.
5594  **/
5595 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
5596 {
5597 	switch (intr_mode) {
5598 	case 0:
5599 		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5600 				"0470 Enable INTx interrupt mode.\n");
5601 		break;
5602 	case 1:
5603 		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5604 				"0481 Enabled MSI interrupt mode.\n");
5605 		break;
5606 	case 2:
5607 		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5608 				"0480 Enabled MSI-X interrupt mode.\n");
5609 		break;
5610 	default:
5611 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5612 				"0482 Illegal interrupt mode.\n");
5613 		break;
5614 	}
5615 	return;
5616 }
5617 
5618 /**
5619  * lpfc_enable_pci_dev - Enable a generic PCI device.
5620  * @phba: pointer to lpfc hba data structure.
5621  *
5622  * This routine is invoked to enable the PCI device that is common to all
5623  * PCI devices.
5624  *
5625  * Return codes
5626  * 	0 - successful
5627  * 	other values - error
5628  **/
5629 static int
5630 lpfc_enable_pci_dev(struct lpfc_hba *phba)
5631 {
5632 	struct pci_dev *pdev;
5633 
5634 	/* Obtain PCI device reference */
5635 	if (!phba->pcidev)
5636 		goto out_error;
5637 	else
5638 		pdev = phba->pcidev;
5639 	/* Enable PCI device */
5640 	if (pci_enable_device_mem(pdev))
5641 		goto out_error;
5642 	/* Request PCI resource for the device */
5643 	if (pci_request_mem_regions(pdev, LPFC_DRIVER_NAME))
5644 		goto out_disable_device;
5645 	/* Set up device as PCI master and save state for EEH */
5646 	pci_set_master(pdev);
5647 	pci_try_set_mwi(pdev);
5648 	pci_save_state(pdev);
5649 
5650 	/* PCIe EEH recovery on powerpc platforms needs fundamental reset */
5651 	if (pci_is_pcie(pdev))
5652 		pdev->needs_freset = 1;
5653 
5654 	return 0;
5655 
5656 out_disable_device:
5657 	pci_disable_device(pdev);
5658 out_error:
5659 	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5660 			"1401 Failed to enable pci device\n");
5661 	return -ENODEV;
5662 }
5663 
5664 /**
5665  * lpfc_disable_pci_dev - Disable a generic PCI device.
5666  * @phba: pointer to lpfc hba data structure.
5667  *
5668  * This routine is invoked to disable the PCI device that is common to all
5669  * PCI devices.
5670  **/
5671 static void
5672 lpfc_disable_pci_dev(struct lpfc_hba *phba)
5673 {
5674 	struct pci_dev *pdev;
5675 
5676 	/* Obtain PCI device reference */
5677 	if (!phba->pcidev)
5678 		return;
5679 	else
5680 		pdev = phba->pcidev;
5681 	/* Release PCI resource and disable PCI device */
5682 	pci_release_mem_regions(pdev);
5683 	pci_disable_device(pdev);
5684 
5685 	return;
5686 }
5687 
5688 /**
5689  * lpfc_reset_hba - Reset a hba
5690  * @phba: pointer to lpfc hba data structure.
5691  *
5692  * This routine is invoked to reset a hba device. It brings the HBA
5693  * offline, performs a board restart, and then brings the board back
5694  * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
5695  * on outstanding mailbox commands.
5696  **/
5697 void
5698 lpfc_reset_hba(struct lpfc_hba *phba)
5699 {
5700 	/* If resets are disabled then set error state and return. */
5701 	if (!phba->cfg_enable_hba_reset) {
5702 		phba->link_state = LPFC_HBA_ERROR;
5703 		return;
5704 	}
5705 	if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
5706 		lpfc_offline_prep(phba, LPFC_MBX_WAIT);
5707 	else
5708 		lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
5709 	lpfc_offline(phba);
5710 	lpfc_sli_brdrestart(phba);
5711 	lpfc_online(phba);
5712 	lpfc_unblock_mgmt_io(phba);
5713 }
5714 
5715 /**
5716  * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
5717  * @phba: pointer to lpfc hba data structure.
5718  *
5719  * This function enables the PCI SR-IOV virtual functions to a physical
5720  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
5721  * enable the number of virtual functions to the physical function. As
5722  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
5723  * API call does not considered as an error condition for most of the device.
5724  **/
5725 uint16_t
5726 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
5727 {
5728 	struct pci_dev *pdev = phba->pcidev;
5729 	uint16_t nr_virtfn;
5730 	int pos;
5731 
5732 	pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
5733 	if (pos == 0)
5734 		return 0;
5735 
5736 	pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
5737 	return nr_virtfn;
5738 }
5739 
5740 /**
5741  * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
5742  * @phba: pointer to lpfc hba data structure.
5743  * @nr_vfn: number of virtual functions to be enabled.
5744  *
5745  * This function enables the PCI SR-IOV virtual functions to a physical
5746  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
5747  * enable the number of virtual functions to the physical function. As
5748  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
5749  * API call does not considered as an error condition for most of the device.
5750  **/
5751 int
5752 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
5753 {
5754 	struct pci_dev *pdev = phba->pcidev;
5755 	uint16_t max_nr_vfn;
5756 	int rc;
5757 
5758 	max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
5759 	if (nr_vfn > max_nr_vfn) {
5760 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5761 				"3057 Requested vfs (%d) greater than "
5762 				"supported vfs (%d)", nr_vfn, max_nr_vfn);
5763 		return -EINVAL;
5764 	}
5765 
5766 	rc = pci_enable_sriov(pdev, nr_vfn);
5767 	if (rc) {
5768 		lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5769 				"2806 Failed to enable sriov on this device "
5770 				"with vfn number nr_vf:%d, rc:%d\n",
5771 				nr_vfn, rc);
5772 	} else
5773 		lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5774 				"2807 Successful enable sriov on this device "
5775 				"with vfn number nr_vf:%d\n", nr_vfn);
5776 	return rc;
5777 }
5778 
5779 /**
5780  * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
5781  * @phba: pointer to lpfc hba data structure.
5782  *
5783  * This routine is invoked to set up the driver internal resources before the
5784  * device specific resource setup to support the HBA device it attached to.
5785  *
5786  * Return codes
5787  *	0 - successful
5788  *	other values - error
5789  **/
5790 static int
5791 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
5792 {
5793 	struct lpfc_sli *psli = &phba->sli;
5794 
5795 	/*
5796 	 * Driver resources common to all SLI revisions
5797 	 */
5798 	atomic_set(&phba->fast_event_count, 0);
5799 	spin_lock_init(&phba->hbalock);
5800 
5801 	/* Initialize ndlp management spinlock */
5802 	spin_lock_init(&phba->ndlp_lock);
5803 
5804 	/* Initialize port_list spinlock */
5805 	spin_lock_init(&phba->port_list_lock);
5806 	INIT_LIST_HEAD(&phba->port_list);
5807 
5808 	INIT_LIST_HEAD(&phba->work_list);
5809 	init_waitqueue_head(&phba->wait_4_mlo_m_q);
5810 
5811 	/* Initialize the wait queue head for the kernel thread */
5812 	init_waitqueue_head(&phba->work_waitq);
5813 
5814 	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5815 			"1403 Protocols supported %s %s %s\n",
5816 			((phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) ?
5817 				"SCSI" : " "),
5818 			((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) ?
5819 				"NVME" : " "),
5820 			(phba->nvmet_support ? "NVMET" : " "));
5821 
5822 	if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
5823 		/* Initialize the scsi buffer list used by driver for scsi IO */
5824 		spin_lock_init(&phba->scsi_buf_list_get_lock);
5825 		INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
5826 		spin_lock_init(&phba->scsi_buf_list_put_lock);
5827 		INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
5828 	}
5829 
5830 	if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) &&
5831 		(phba->nvmet_support == 0)) {
5832 		/* Initialize the NVME buffer list used by driver for NVME IO */
5833 		spin_lock_init(&phba->nvme_buf_list_get_lock);
5834 		INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_get);
5835 		phba->get_nvme_bufs = 0;
5836 		spin_lock_init(&phba->nvme_buf_list_put_lock);
5837 		INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_put);
5838 		phba->put_nvme_bufs = 0;
5839 	}
5840 
5841 	/* Initialize the fabric iocb list */
5842 	INIT_LIST_HEAD(&phba->fabric_iocb_list);
5843 
5844 	/* Initialize list to save ELS buffers */
5845 	INIT_LIST_HEAD(&phba->elsbuf);
5846 
5847 	/* Initialize FCF connection rec list */
5848 	INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
5849 
5850 	/* Initialize OAS configuration list */
5851 	spin_lock_init(&phba->devicelock);
5852 	INIT_LIST_HEAD(&phba->luns);
5853 
5854 	/* MBOX heartbeat timer */
5855 	timer_setup(&psli->mbox_tmo, lpfc_mbox_timeout, 0);
5856 	/* Fabric block timer */
5857 	timer_setup(&phba->fabric_block_timer, lpfc_fabric_block_timeout, 0);
5858 	/* EA polling mode timer */
5859 	timer_setup(&phba->eratt_poll, lpfc_poll_eratt, 0);
5860 	/* Heartbeat timer */
5861 	timer_setup(&phba->hb_tmofunc, lpfc_hb_timeout, 0);
5862 
5863 	return 0;
5864 }
5865 
5866 /**
5867  * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev
5868  * @phba: pointer to lpfc hba data structure.
5869  *
5870  * This routine is invoked to set up the driver internal resources specific to
5871  * support the SLI-3 HBA device it attached to.
5872  *
5873  * Return codes
5874  * 0 - successful
5875  * other values - error
5876  **/
5877 static int
5878 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
5879 {
5880 	int rc;
5881 
5882 	/*
5883 	 * Initialize timers used by driver
5884 	 */
5885 
5886 	/* FCP polling mode timer */
5887 	timer_setup(&phba->fcp_poll_timer, lpfc_poll_timeout, 0);
5888 
5889 	/* Host attention work mask setup */
5890 	phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
5891 	phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
5892 
5893 	/* Get all the module params for configuring this host */
5894 	lpfc_get_cfgparam(phba);
5895 	/* Set up phase-1 common device driver resources */
5896 
5897 	rc = lpfc_setup_driver_resource_phase1(phba);
5898 	if (rc)
5899 		return -ENODEV;
5900 
5901 	if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
5902 		phba->menlo_flag |= HBA_MENLO_SUPPORT;
5903 		/* check for menlo minimum sg count */
5904 		if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
5905 			phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
5906 	}
5907 
5908 	if (!phba->sli.sli3_ring)
5909 		phba->sli.sli3_ring = kcalloc(LPFC_SLI3_MAX_RING,
5910 					      sizeof(struct lpfc_sli_ring),
5911 					      GFP_KERNEL);
5912 	if (!phba->sli.sli3_ring)
5913 		return -ENOMEM;
5914 
5915 	/*
5916 	 * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
5917 	 * used to create the sg_dma_buf_pool must be dynamically calculated.
5918 	 */
5919 
5920 	/* Initialize the host templates the configured values. */
5921 	lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5922 	lpfc_template_no_hr.sg_tablesize = phba->cfg_sg_seg_cnt;
5923 	lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5924 
5925 	/* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
5926 	if (phba->cfg_enable_bg) {
5927 		/*
5928 		 * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
5929 		 * the FCP rsp, and a BDE for each. Sice we have no control
5930 		 * over how many protection data segments the SCSI Layer
5931 		 * will hand us (ie: there could be one for every block
5932 		 * in the IO), we just allocate enough BDEs to accomidate
5933 		 * our max amount and we need to limit lpfc_sg_seg_cnt to
5934 		 * minimize the risk of running out.
5935 		 */
5936 		phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5937 			sizeof(struct fcp_rsp) +
5938 			(LPFC_MAX_SG_SEG_CNT * sizeof(struct ulp_bde64));
5939 
5940 		if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
5941 			phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
5942 
5943 		/* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
5944 		phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
5945 	} else {
5946 		/*
5947 		 * The scsi_buf for a regular I/O will hold the FCP cmnd,
5948 		 * the FCP rsp, a BDE for each, and a BDE for up to
5949 		 * cfg_sg_seg_cnt data segments.
5950 		 */
5951 		phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5952 			sizeof(struct fcp_rsp) +
5953 			((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
5954 
5955 		/* Total BDEs in BPL for scsi_sg_list */
5956 		phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
5957 	}
5958 
5959 	lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
5960 			"9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
5961 			phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
5962 			phba->cfg_total_seg_cnt);
5963 
5964 	phba->max_vpi = LPFC_MAX_VPI;
5965 	/* This will be set to correct value after config_port mbox */
5966 	phba->max_vports = 0;
5967 
5968 	/*
5969 	 * Initialize the SLI Layer to run with lpfc HBAs.
5970 	 */
5971 	lpfc_sli_setup(phba);
5972 	lpfc_sli_queue_init(phba);
5973 
5974 	/* Allocate device driver memory */
5975 	if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
5976 		return -ENOMEM;
5977 
5978 	/*
5979 	 * Enable sr-iov virtual functions if supported and configured
5980 	 * through the module parameter.
5981 	 */
5982 	if (phba->cfg_sriov_nr_virtfn > 0) {
5983 		rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
5984 						 phba->cfg_sriov_nr_virtfn);
5985 		if (rc) {
5986 			lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5987 					"2808 Requested number of SR-IOV "
5988 					"virtual functions (%d) is not "
5989 					"supported\n",
5990 					phba->cfg_sriov_nr_virtfn);
5991 			phba->cfg_sriov_nr_virtfn = 0;
5992 		}
5993 	}
5994 
5995 	return 0;
5996 }
5997 
5998 /**
5999  * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
6000  * @phba: pointer to lpfc hba data structure.
6001  *
6002  * This routine is invoked to unset the driver internal resources set up
6003  * specific for supporting the SLI-3 HBA device it attached to.
6004  **/
6005 static void
6006 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
6007 {
6008 	/* Free device driver memory allocated */
6009 	lpfc_mem_free_all(phba);
6010 
6011 	return;
6012 }
6013 
6014 /**
6015  * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
6016  * @phba: pointer to lpfc hba data structure.
6017  *
6018  * This routine is invoked to set up the driver internal resources specific to
6019  * support the SLI-4 HBA device it attached to.
6020  *
6021  * Return codes
6022  * 	0 - successful
6023  * 	other values - error
6024  **/
6025 static int
6026 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
6027 {
6028 	LPFC_MBOXQ_t *mboxq;
6029 	MAILBOX_t *mb;
6030 	int rc, i, max_buf_size;
6031 	uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
6032 	struct lpfc_mqe *mqe;
6033 	int longs;
6034 	int fof_vectors = 0;
6035 	int extra;
6036 	uint64_t wwn;
6037 	u32 if_type;
6038 	u32 if_fam;
6039 
6040 	phba->sli4_hba.num_online_cpu = num_online_cpus();
6041 	phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
6042 	phba->sli4_hba.curr_disp_cpu = 0;
6043 
6044 	/* Get all the module params for configuring this host */
6045 	lpfc_get_cfgparam(phba);
6046 
6047 	/* Set up phase-1 common device driver resources */
6048 	rc = lpfc_setup_driver_resource_phase1(phba);
6049 	if (rc)
6050 		return -ENODEV;
6051 
6052 	/* Before proceed, wait for POST done and device ready */
6053 	rc = lpfc_sli4_post_status_check(phba);
6054 	if (rc)
6055 		return -ENODEV;
6056 
6057 	/*
6058 	 * Initialize timers used by driver
6059 	 */
6060 
6061 	timer_setup(&phba->rrq_tmr, lpfc_rrq_timeout, 0);
6062 
6063 	/* FCF rediscover timer */
6064 	timer_setup(&phba->fcf.redisc_wait, lpfc_sli4_fcf_redisc_wait_tmo, 0);
6065 
6066 	/*
6067 	 * Control structure for handling external multi-buffer mailbox
6068 	 * command pass-through.
6069 	 */
6070 	memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
6071 		sizeof(struct lpfc_mbox_ext_buf_ctx));
6072 	INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
6073 
6074 	phba->max_vpi = LPFC_MAX_VPI;
6075 
6076 	/* This will be set to correct value after the read_config mbox */
6077 	phba->max_vports = 0;
6078 
6079 	/* Program the default value of vlan_id and fc_map */
6080 	phba->valid_vlan = 0;
6081 	phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
6082 	phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
6083 	phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
6084 
6085 	/*
6086 	 * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
6087 	 * we will associate a new ring, for each EQ/CQ/WQ tuple.
6088 	 * The WQ create will allocate the ring.
6089 	 */
6090 
6091 	/*
6092 	 * 1 for cmd, 1 for rsp, NVME adds an extra one
6093 	 * for boundary conditions in its max_sgl_segment template.
6094 	 */
6095 	extra = 2;
6096 	if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
6097 		extra++;
6098 
6099 	/*
6100 	 * It doesn't matter what family our adapter is in, we are
6101 	 * limited to 2 Pages, 512 SGEs, for our SGL.
6102 	 * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
6103 	 */
6104 	max_buf_size = (2 * SLI4_PAGE_SIZE);
6105 
6106 	/*
6107 	 * Since lpfc_sg_seg_cnt is module param, the sg_dma_buf_size
6108 	 * used to create the sg_dma_buf_pool must be calculated.
6109 	 */
6110 	if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) {
6111 		/*
6112 		 * The scsi_buf for a T10-DIF I/O holds the FCP cmnd,
6113 		 * the FCP rsp, and a SGE. Sice we have no control
6114 		 * over how many protection segments the SCSI Layer
6115 		 * will hand us (ie: there could be one for every block
6116 		 * in the IO), just allocate enough SGEs to accomidate
6117 		 * our max amount and we need to limit lpfc_sg_seg_cnt
6118 		 * to minimize the risk of running out.
6119 		 */
6120 		phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
6121 				sizeof(struct fcp_rsp) + max_buf_size;
6122 
6123 		/* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
6124 		phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
6125 
6126 		/*
6127 		 * If supporting DIF, reduce the seg count for scsi to
6128 		 * allow room for the DIF sges.
6129 		 */
6130 		if (phba->cfg_enable_bg &&
6131 		    phba->cfg_sg_seg_cnt > LPFC_MAX_BG_SLI4_SEG_CNT_DIF)
6132 			phba->cfg_scsi_seg_cnt = LPFC_MAX_BG_SLI4_SEG_CNT_DIF;
6133 		else
6134 			phba->cfg_scsi_seg_cnt = phba->cfg_sg_seg_cnt;
6135 
6136 	} else {
6137 		/*
6138 		 * The scsi_buf for a regular I/O holds the FCP cmnd,
6139 		 * the FCP rsp, a SGE for each, and a SGE for up to
6140 		 * cfg_sg_seg_cnt data segments.
6141 		 */
6142 		phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
6143 				sizeof(struct fcp_rsp) +
6144 				((phba->cfg_sg_seg_cnt + extra) *
6145 				sizeof(struct sli4_sge));
6146 
6147 		/* Total SGEs for scsi_sg_list */
6148 		phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + extra;
6149 		phba->cfg_scsi_seg_cnt = phba->cfg_sg_seg_cnt;
6150 
6151 		/*
6152 		 * NOTE: if (phba->cfg_sg_seg_cnt + extra) <= 256 we only
6153 		 * need to post 1 page for the SGL.
6154 		 */
6155 	}
6156 
6157 	/* Limit to LPFC_MAX_NVME_SEG_CNT for NVME. */
6158 	if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
6159 		if (phba->cfg_sg_seg_cnt > LPFC_MAX_NVME_SEG_CNT) {
6160 			lpfc_printf_log(phba, KERN_INFO, LOG_NVME | LOG_INIT,
6161 					"6300 Reducing NVME sg segment "
6162 					"cnt to %d\n",
6163 					LPFC_MAX_NVME_SEG_CNT);
6164 			phba->cfg_nvme_seg_cnt = LPFC_MAX_NVME_SEG_CNT;
6165 		} else
6166 			phba->cfg_nvme_seg_cnt = phba->cfg_sg_seg_cnt;
6167 	}
6168 
6169 	/* Initialize the host templates with the updated values. */
6170 	lpfc_vport_template.sg_tablesize = phba->cfg_scsi_seg_cnt;
6171 	lpfc_template.sg_tablesize = phba->cfg_scsi_seg_cnt;
6172 	lpfc_template_no_hr.sg_tablesize = phba->cfg_scsi_seg_cnt;
6173 
6174 	if (phba->cfg_sg_dma_buf_size  <= LPFC_MIN_SG_SLI4_BUF_SZ)
6175 		phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
6176 	else
6177 		phba->cfg_sg_dma_buf_size =
6178 			SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
6179 
6180 	lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
6181 			"9087 sg_seg_cnt:%d dmabuf_size:%d "
6182 			"total:%d scsi:%d nvme:%d\n",
6183 			phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
6184 			phba->cfg_total_seg_cnt,  phba->cfg_scsi_seg_cnt,
6185 			phba->cfg_nvme_seg_cnt);
6186 
6187 	/* Initialize buffer queue management fields */
6188 	INIT_LIST_HEAD(&phba->hbqs[LPFC_ELS_HBQ].hbq_buffer_list);
6189 	phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
6190 	phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
6191 
6192 	/*
6193 	 * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
6194 	 */
6195 	if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
6196 		/* Initialize the Abort scsi buffer list used by driver */
6197 		spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
6198 		INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
6199 	}
6200 
6201 	if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
6202 		/* Initialize the Abort nvme buffer list used by driver */
6203 		spin_lock_init(&phba->sli4_hba.abts_nvme_buf_list_lock);
6204 		INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvme_buf_list);
6205 		INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
6206 		INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_io_wait_list);
6207 	}
6208 
6209 	/* This abort list used by worker thread */
6210 	spin_lock_init(&phba->sli4_hba.sgl_list_lock);
6211 	spin_lock_init(&phba->sli4_hba.nvmet_io_wait_lock);
6212 
6213 	/*
6214 	 * Initialize driver internal slow-path work queues
6215 	 */
6216 
6217 	/* Driver internel slow-path CQ Event pool */
6218 	INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
6219 	/* Response IOCB work queue list */
6220 	INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
6221 	/* Asynchronous event CQ Event work queue list */
6222 	INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
6223 	/* Fast-path XRI aborted CQ Event work queue list */
6224 	INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
6225 	/* Slow-path XRI aborted CQ Event work queue list */
6226 	INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
6227 	/* Receive queue CQ Event work queue list */
6228 	INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
6229 
6230 	/* Initialize extent block lists. */
6231 	INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
6232 	INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
6233 	INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
6234 	INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
6235 
6236 	/* Initialize mboxq lists. If the early init routines fail
6237 	 * these lists need to be correctly initialized.
6238 	 */
6239 	INIT_LIST_HEAD(&phba->sli.mboxq);
6240 	INIT_LIST_HEAD(&phba->sli.mboxq_cmpl);
6241 
6242 	/* initialize optic_state to 0xFF */
6243 	phba->sli4_hba.lnk_info.optic_state = 0xff;
6244 
6245 	/* Allocate device driver memory */
6246 	rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
6247 	if (rc)
6248 		return -ENOMEM;
6249 
6250 	/* IF Type 2 ports get initialized now. */
6251 	if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
6252 	    LPFC_SLI_INTF_IF_TYPE_2) {
6253 		rc = lpfc_pci_function_reset(phba);
6254 		if (unlikely(rc)) {
6255 			rc = -ENODEV;
6256 			goto out_free_mem;
6257 		}
6258 		phba->temp_sensor_support = 1;
6259 	}
6260 
6261 	/* Create the bootstrap mailbox command */
6262 	rc = lpfc_create_bootstrap_mbox(phba);
6263 	if (unlikely(rc))
6264 		goto out_free_mem;
6265 
6266 	/* Set up the host's endian order with the device. */
6267 	rc = lpfc_setup_endian_order(phba);
6268 	if (unlikely(rc))
6269 		goto out_free_bsmbx;
6270 
6271 	/* Set up the hba's configuration parameters. */
6272 	rc = lpfc_sli4_read_config(phba);
6273 	if (unlikely(rc))
6274 		goto out_free_bsmbx;
6275 	rc = lpfc_mem_alloc_active_rrq_pool_s4(phba);
6276 	if (unlikely(rc))
6277 		goto out_free_bsmbx;
6278 
6279 	/* IF Type 0 ports get initialized now. */
6280 	if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
6281 	    LPFC_SLI_INTF_IF_TYPE_0) {
6282 		rc = lpfc_pci_function_reset(phba);
6283 		if (unlikely(rc))
6284 			goto out_free_bsmbx;
6285 	}
6286 
6287 	mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
6288 						       GFP_KERNEL);
6289 	if (!mboxq) {
6290 		rc = -ENOMEM;
6291 		goto out_free_bsmbx;
6292 	}
6293 
6294 	/* Check for NVMET being configured */
6295 	phba->nvmet_support = 0;
6296 	if (lpfc_enable_nvmet_cnt) {
6297 
6298 		/* First get WWN of HBA instance */
6299 		lpfc_read_nv(phba, mboxq);
6300 		rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6301 		if (rc != MBX_SUCCESS) {
6302 			lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6303 					"6016 Mailbox failed , mbxCmd x%x "
6304 					"READ_NV, mbxStatus x%x\n",
6305 					bf_get(lpfc_mqe_command, &mboxq->u.mqe),
6306 					bf_get(lpfc_mqe_status, &mboxq->u.mqe));
6307 			mempool_free(mboxq, phba->mbox_mem_pool);
6308 			rc = -EIO;
6309 			goto out_free_bsmbx;
6310 		}
6311 		mb = &mboxq->u.mb;
6312 		memcpy(&wwn, (char *)mb->un.varRDnvp.nodename,
6313 		       sizeof(uint64_t));
6314 		wwn = cpu_to_be64(wwn);
6315 		phba->sli4_hba.wwnn.u.name = wwn;
6316 		memcpy(&wwn, (char *)mb->un.varRDnvp.portname,
6317 		       sizeof(uint64_t));
6318 		/* wwn is WWPN of HBA instance */
6319 		wwn = cpu_to_be64(wwn);
6320 		phba->sli4_hba.wwpn.u.name = wwn;
6321 
6322 		/* Check to see if it matches any module parameter */
6323 		for (i = 0; i < lpfc_enable_nvmet_cnt; i++) {
6324 			if (wwn == lpfc_enable_nvmet[i]) {
6325 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
6326 				if (lpfc_nvmet_mem_alloc(phba))
6327 					break;
6328 
6329 				phba->nvmet_support = 1; /* a match */
6330 
6331 				lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6332 						"6017 NVME Target %016llx\n",
6333 						wwn);
6334 #else
6335 				lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6336 						"6021 Can't enable NVME Target."
6337 						" NVME_TARGET_FC infrastructure"
6338 						" is not in kernel\n");
6339 #endif
6340 				break;
6341 			}
6342 		}
6343 	}
6344 
6345 	lpfc_nvme_mod_param_dep(phba);
6346 
6347 	/* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
6348 	lpfc_supported_pages(mboxq);
6349 	rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6350 	if (!rc) {
6351 		mqe = &mboxq->u.mqe;
6352 		memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
6353 		       LPFC_MAX_SUPPORTED_PAGES);
6354 		for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
6355 			switch (pn_page[i]) {
6356 			case LPFC_SLI4_PARAMETERS:
6357 				phba->sli4_hba.pc_sli4_params.supported = 1;
6358 				break;
6359 			default:
6360 				break;
6361 			}
6362 		}
6363 		/* Read the port's SLI4 Parameters capabilities if supported. */
6364 		if (phba->sli4_hba.pc_sli4_params.supported)
6365 			rc = lpfc_pc_sli4_params_get(phba, mboxq);
6366 		if (rc) {
6367 			mempool_free(mboxq, phba->mbox_mem_pool);
6368 			rc = -EIO;
6369 			goto out_free_bsmbx;
6370 		}
6371 	}
6372 
6373 	/*
6374 	 * Get sli4 parameters that override parameters from Port capabilities.
6375 	 * If this call fails, it isn't critical unless the SLI4 parameters come
6376 	 * back in conflict.
6377 	 */
6378 	rc = lpfc_get_sli4_parameters(phba, mboxq);
6379 	if (rc) {
6380 		if_type = bf_get(lpfc_sli_intf_if_type,
6381 				 &phba->sli4_hba.sli_intf);
6382 		if_fam = bf_get(lpfc_sli_intf_sli_family,
6383 				&phba->sli4_hba.sli_intf);
6384 		if (phba->sli4_hba.extents_in_use &&
6385 		    phba->sli4_hba.rpi_hdrs_in_use) {
6386 			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6387 				"2999 Unsupported SLI4 Parameters "
6388 				"Extents and RPI headers enabled.\n");
6389 			if (if_type == LPFC_SLI_INTF_IF_TYPE_0 &&
6390 			    if_fam ==  LPFC_SLI_INTF_FAMILY_BE2) {
6391 				mempool_free(mboxq, phba->mbox_mem_pool);
6392 				rc = -EIO;
6393 				goto out_free_bsmbx;
6394 			}
6395 		}
6396 		if (!(if_type == LPFC_SLI_INTF_IF_TYPE_0 &&
6397 		      if_fam == LPFC_SLI_INTF_FAMILY_BE2)) {
6398 			mempool_free(mboxq, phba->mbox_mem_pool);
6399 			rc = -EIO;
6400 			goto out_free_bsmbx;
6401 		}
6402 	}
6403 
6404 	mempool_free(mboxq, phba->mbox_mem_pool);
6405 
6406 	/* Verify OAS is supported */
6407 	lpfc_sli4_oas_verify(phba);
6408 	if (phba->cfg_fof)
6409 		fof_vectors = 1;
6410 
6411 	/* Verify RAS support on adapter */
6412 	lpfc_sli4_ras_init(phba);
6413 
6414 	/* Verify all the SLI4 queues */
6415 	rc = lpfc_sli4_queue_verify(phba);
6416 	if (rc)
6417 		goto out_free_bsmbx;
6418 
6419 	/* Create driver internal CQE event pool */
6420 	rc = lpfc_sli4_cq_event_pool_create(phba);
6421 	if (rc)
6422 		goto out_free_bsmbx;
6423 
6424 	/* Initialize sgl lists per host */
6425 	lpfc_init_sgl_list(phba);
6426 
6427 	/* Allocate and initialize active sgl array */
6428 	rc = lpfc_init_active_sgl_array(phba);
6429 	if (rc) {
6430 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6431 				"1430 Failed to initialize sgl list.\n");
6432 		goto out_destroy_cq_event_pool;
6433 	}
6434 	rc = lpfc_sli4_init_rpi_hdrs(phba);
6435 	if (rc) {
6436 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6437 				"1432 Failed to initialize rpi headers.\n");
6438 		goto out_free_active_sgl;
6439 	}
6440 
6441 	/* Allocate eligible FCF bmask memory for FCF roundrobin failover */
6442 	longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
6443 	phba->fcf.fcf_rr_bmask = kcalloc(longs, sizeof(unsigned long),
6444 					 GFP_KERNEL);
6445 	if (!phba->fcf.fcf_rr_bmask) {
6446 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6447 				"2759 Failed allocate memory for FCF round "
6448 				"robin failover bmask\n");
6449 		rc = -ENOMEM;
6450 		goto out_remove_rpi_hdrs;
6451 	}
6452 
6453 	phba->sli4_hba.hba_eq_hdl = kcalloc(fof_vectors + phba->io_channel_irqs,
6454 						sizeof(struct lpfc_hba_eq_hdl),
6455 						GFP_KERNEL);
6456 	if (!phba->sli4_hba.hba_eq_hdl) {
6457 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6458 				"2572 Failed allocate memory for "
6459 				"fast-path per-EQ handle array\n");
6460 		rc = -ENOMEM;
6461 		goto out_free_fcf_rr_bmask;
6462 	}
6463 
6464 	phba->sli4_hba.cpu_map = kcalloc(phba->sli4_hba.num_present_cpu,
6465 					sizeof(struct lpfc_vector_map_info),
6466 					GFP_KERNEL);
6467 	if (!phba->sli4_hba.cpu_map) {
6468 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6469 				"3327 Failed allocate memory for msi-x "
6470 				"interrupt vector mapping\n");
6471 		rc = -ENOMEM;
6472 		goto out_free_hba_eq_hdl;
6473 	}
6474 	if (lpfc_used_cpu == NULL) {
6475 		lpfc_used_cpu = kcalloc(lpfc_present_cpu, sizeof(uint16_t),
6476 						GFP_KERNEL);
6477 		if (!lpfc_used_cpu) {
6478 			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6479 					"3335 Failed allocate memory for msi-x "
6480 					"interrupt vector mapping\n");
6481 			kfree(phba->sli4_hba.cpu_map);
6482 			rc = -ENOMEM;
6483 			goto out_free_hba_eq_hdl;
6484 		}
6485 		for (i = 0; i < lpfc_present_cpu; i++)
6486 			lpfc_used_cpu[i] = LPFC_VECTOR_MAP_EMPTY;
6487 	}
6488 
6489 	/*
6490 	 * Enable sr-iov virtual functions if supported and configured
6491 	 * through the module parameter.
6492 	 */
6493 	if (phba->cfg_sriov_nr_virtfn > 0) {
6494 		rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
6495 						 phba->cfg_sriov_nr_virtfn);
6496 		if (rc) {
6497 			lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6498 					"3020 Requested number of SR-IOV "
6499 					"virtual functions (%d) is not "
6500 					"supported\n",
6501 					phba->cfg_sriov_nr_virtfn);
6502 			phba->cfg_sriov_nr_virtfn = 0;
6503 		}
6504 	}
6505 
6506 	return 0;
6507 
6508 out_free_hba_eq_hdl:
6509 	kfree(phba->sli4_hba.hba_eq_hdl);
6510 out_free_fcf_rr_bmask:
6511 	kfree(phba->fcf.fcf_rr_bmask);
6512 out_remove_rpi_hdrs:
6513 	lpfc_sli4_remove_rpi_hdrs(phba);
6514 out_free_active_sgl:
6515 	lpfc_free_active_sgl(phba);
6516 out_destroy_cq_event_pool:
6517 	lpfc_sli4_cq_event_pool_destroy(phba);
6518 out_free_bsmbx:
6519 	lpfc_destroy_bootstrap_mbox(phba);
6520 out_free_mem:
6521 	lpfc_mem_free(phba);
6522 	return rc;
6523 }
6524 
6525 /**
6526  * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
6527  * @phba: pointer to lpfc hba data structure.
6528  *
6529  * This routine is invoked to unset the driver internal resources set up
6530  * specific for supporting the SLI-4 HBA device it attached to.
6531  **/
6532 static void
6533 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
6534 {
6535 	struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
6536 
6537 	/* Free memory allocated for msi-x interrupt vector to CPU mapping */
6538 	kfree(phba->sli4_hba.cpu_map);
6539 	phba->sli4_hba.num_present_cpu = 0;
6540 	phba->sli4_hba.num_online_cpu = 0;
6541 	phba->sli4_hba.curr_disp_cpu = 0;
6542 
6543 	/* Free memory allocated for fast-path work queue handles */
6544 	kfree(phba->sli4_hba.hba_eq_hdl);
6545 
6546 	/* Free the allocated rpi headers. */
6547 	lpfc_sli4_remove_rpi_hdrs(phba);
6548 	lpfc_sli4_remove_rpis(phba);
6549 
6550 	/* Free eligible FCF index bmask */
6551 	kfree(phba->fcf.fcf_rr_bmask);
6552 
6553 	/* Free the ELS sgl list */
6554 	lpfc_free_active_sgl(phba);
6555 	lpfc_free_els_sgl_list(phba);
6556 	lpfc_free_nvmet_sgl_list(phba);
6557 
6558 	/* Free the completion queue EQ event pool */
6559 	lpfc_sli4_cq_event_release_all(phba);
6560 	lpfc_sli4_cq_event_pool_destroy(phba);
6561 
6562 	/* Release resource identifiers. */
6563 	lpfc_sli4_dealloc_resource_identifiers(phba);
6564 
6565 	/* Free the bsmbx region. */
6566 	lpfc_destroy_bootstrap_mbox(phba);
6567 
6568 	/* Free the SLI Layer memory with SLI4 HBAs */
6569 	lpfc_mem_free_all(phba);
6570 
6571 	/* Free the current connect table */
6572 	list_for_each_entry_safe(conn_entry, next_conn_entry,
6573 		&phba->fcf_conn_rec_list, list) {
6574 		list_del_init(&conn_entry->list);
6575 		kfree(conn_entry);
6576 	}
6577 
6578 	return;
6579 }
6580 
6581 /**
6582  * lpfc_init_api_table_setup - Set up init api function jump table
6583  * @phba: The hba struct for which this call is being executed.
6584  * @dev_grp: The HBA PCI-Device group number.
6585  *
6586  * This routine sets up the device INIT interface API function jump table
6587  * in @phba struct.
6588  *
6589  * Returns: 0 - success, -ENODEV - failure.
6590  **/
6591 int
6592 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
6593 {
6594 	phba->lpfc_hba_init_link = lpfc_hba_init_link;
6595 	phba->lpfc_hba_down_link = lpfc_hba_down_link;
6596 	phba->lpfc_selective_reset = lpfc_selective_reset;
6597 	switch (dev_grp) {
6598 	case LPFC_PCI_DEV_LP:
6599 		phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
6600 		phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
6601 		phba->lpfc_stop_port = lpfc_stop_port_s3;
6602 		break;
6603 	case LPFC_PCI_DEV_OC:
6604 		phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
6605 		phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
6606 		phba->lpfc_stop_port = lpfc_stop_port_s4;
6607 		break;
6608 	default:
6609 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6610 				"1431 Invalid HBA PCI-device group: 0x%x\n",
6611 				dev_grp);
6612 		return -ENODEV;
6613 		break;
6614 	}
6615 	return 0;
6616 }
6617 
6618 /**
6619  * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
6620  * @phba: pointer to lpfc hba data structure.
6621  *
6622  * This routine is invoked to set up the driver internal resources after the
6623  * device specific resource setup to support the HBA device it attached to.
6624  *
6625  * Return codes
6626  * 	0 - successful
6627  * 	other values - error
6628  **/
6629 static int
6630 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
6631 {
6632 	int error;
6633 
6634 	/* Startup the kernel thread for this host adapter. */
6635 	phba->worker_thread = kthread_run(lpfc_do_work, phba,
6636 					  "lpfc_worker_%d", phba->brd_no);
6637 	if (IS_ERR(phba->worker_thread)) {
6638 		error = PTR_ERR(phba->worker_thread);
6639 		return error;
6640 	}
6641 
6642 	/* The lpfc_wq workqueue for deferred irq use, is only used for SLI4 */
6643 	if (phba->sli_rev == LPFC_SLI_REV4)
6644 		phba->wq = alloc_workqueue("lpfc_wq", WQ_MEM_RECLAIM, 0);
6645 	else
6646 		phba->wq = NULL;
6647 
6648 	return 0;
6649 }
6650 
6651 /**
6652  * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
6653  * @phba: pointer to lpfc hba data structure.
6654  *
6655  * This routine is invoked to unset the driver internal resources set up after
6656  * the device specific resource setup for supporting the HBA device it
6657  * attached to.
6658  **/
6659 static void
6660 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
6661 {
6662 	if (phba->wq) {
6663 		flush_workqueue(phba->wq);
6664 		destroy_workqueue(phba->wq);
6665 		phba->wq = NULL;
6666 	}
6667 
6668 	/* Stop kernel worker thread */
6669 	if (phba->worker_thread)
6670 		kthread_stop(phba->worker_thread);
6671 }
6672 
6673 /**
6674  * lpfc_free_iocb_list - Free iocb list.
6675  * @phba: pointer to lpfc hba data structure.
6676  *
6677  * This routine is invoked to free the driver's IOCB list and memory.
6678  **/
6679 void
6680 lpfc_free_iocb_list(struct lpfc_hba *phba)
6681 {
6682 	struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
6683 
6684 	spin_lock_irq(&phba->hbalock);
6685 	list_for_each_entry_safe(iocbq_entry, iocbq_next,
6686 				 &phba->lpfc_iocb_list, list) {
6687 		list_del(&iocbq_entry->list);
6688 		kfree(iocbq_entry);
6689 		phba->total_iocbq_bufs--;
6690 	}
6691 	spin_unlock_irq(&phba->hbalock);
6692 
6693 	return;
6694 }
6695 
6696 /**
6697  * lpfc_init_iocb_list - Allocate and initialize iocb list.
6698  * @phba: pointer to lpfc hba data structure.
6699  *
6700  * This routine is invoked to allocate and initizlize the driver's IOCB
6701  * list and set up the IOCB tag array accordingly.
6702  *
6703  * Return codes
6704  *	0 - successful
6705  *	other values - error
6706  **/
6707 int
6708 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
6709 {
6710 	struct lpfc_iocbq *iocbq_entry = NULL;
6711 	uint16_t iotag;
6712 	int i;
6713 
6714 	/* Initialize and populate the iocb list per host.  */
6715 	INIT_LIST_HEAD(&phba->lpfc_iocb_list);
6716 	for (i = 0; i < iocb_count; i++) {
6717 		iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
6718 		if (iocbq_entry == NULL) {
6719 			printk(KERN_ERR "%s: only allocated %d iocbs of "
6720 				"expected %d count. Unloading driver.\n",
6721 				__func__, i, LPFC_IOCB_LIST_CNT);
6722 			goto out_free_iocbq;
6723 		}
6724 
6725 		iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
6726 		if (iotag == 0) {
6727 			kfree(iocbq_entry);
6728 			printk(KERN_ERR "%s: failed to allocate IOTAG. "
6729 				"Unloading driver.\n", __func__);
6730 			goto out_free_iocbq;
6731 		}
6732 		iocbq_entry->sli4_lxritag = NO_XRI;
6733 		iocbq_entry->sli4_xritag = NO_XRI;
6734 
6735 		spin_lock_irq(&phba->hbalock);
6736 		list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
6737 		phba->total_iocbq_bufs++;
6738 		spin_unlock_irq(&phba->hbalock);
6739 	}
6740 
6741 	return 0;
6742 
6743 out_free_iocbq:
6744 	lpfc_free_iocb_list(phba);
6745 
6746 	return -ENOMEM;
6747 }
6748 
6749 /**
6750  * lpfc_free_sgl_list - Free a given sgl list.
6751  * @phba: pointer to lpfc hba data structure.
6752  * @sglq_list: pointer to the head of sgl list.
6753  *
6754  * This routine is invoked to free a give sgl list and memory.
6755  **/
6756 void
6757 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
6758 {
6759 	struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
6760 
6761 	list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
6762 		list_del(&sglq_entry->list);
6763 		lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
6764 		kfree(sglq_entry);
6765 	}
6766 }
6767 
6768 /**
6769  * lpfc_free_els_sgl_list - Free els sgl list.
6770  * @phba: pointer to lpfc hba data structure.
6771  *
6772  * This routine is invoked to free the driver's els sgl list and memory.
6773  **/
6774 static void
6775 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
6776 {
6777 	LIST_HEAD(sglq_list);
6778 
6779 	/* Retrieve all els sgls from driver list */
6780 	spin_lock_irq(&phba->hbalock);
6781 	spin_lock(&phba->sli4_hba.sgl_list_lock);
6782 	list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list, &sglq_list);
6783 	spin_unlock(&phba->sli4_hba.sgl_list_lock);
6784 	spin_unlock_irq(&phba->hbalock);
6785 
6786 	/* Now free the sgl list */
6787 	lpfc_free_sgl_list(phba, &sglq_list);
6788 }
6789 
6790 /**
6791  * lpfc_free_nvmet_sgl_list - Free nvmet sgl list.
6792  * @phba: pointer to lpfc hba data structure.
6793  *
6794  * This routine is invoked to free the driver's nvmet sgl list and memory.
6795  **/
6796 static void
6797 lpfc_free_nvmet_sgl_list(struct lpfc_hba *phba)
6798 {
6799 	struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
6800 	LIST_HEAD(sglq_list);
6801 
6802 	/* Retrieve all nvmet sgls from driver list */
6803 	spin_lock_irq(&phba->hbalock);
6804 	spin_lock(&phba->sli4_hba.sgl_list_lock);
6805 	list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list, &sglq_list);
6806 	spin_unlock(&phba->sli4_hba.sgl_list_lock);
6807 	spin_unlock_irq(&phba->hbalock);
6808 
6809 	/* Now free the sgl list */
6810 	list_for_each_entry_safe(sglq_entry, sglq_next, &sglq_list, list) {
6811 		list_del(&sglq_entry->list);
6812 		lpfc_nvmet_buf_free(phba, sglq_entry->virt, sglq_entry->phys);
6813 		kfree(sglq_entry);
6814 	}
6815 
6816 	/* Update the nvmet_xri_cnt to reflect no current sgls.
6817 	 * The next initialization cycle sets the count and allocates
6818 	 * the sgls over again.
6819 	 */
6820 	phba->sli4_hba.nvmet_xri_cnt = 0;
6821 }
6822 
6823 /**
6824  * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
6825  * @phba: pointer to lpfc hba data structure.
6826  *
6827  * This routine is invoked to allocate the driver's active sgl memory.
6828  * This array will hold the sglq_entry's for active IOs.
6829  **/
6830 static int
6831 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
6832 {
6833 	int size;
6834 	size = sizeof(struct lpfc_sglq *);
6835 	size *= phba->sli4_hba.max_cfg_param.max_xri;
6836 
6837 	phba->sli4_hba.lpfc_sglq_active_list =
6838 		kzalloc(size, GFP_KERNEL);
6839 	if (!phba->sli4_hba.lpfc_sglq_active_list)
6840 		return -ENOMEM;
6841 	return 0;
6842 }
6843 
6844 /**
6845  * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
6846  * @phba: pointer to lpfc hba data structure.
6847  *
6848  * This routine is invoked to walk through the array of active sglq entries
6849  * and free all of the resources.
6850  * This is just a place holder for now.
6851  **/
6852 static void
6853 lpfc_free_active_sgl(struct lpfc_hba *phba)
6854 {
6855 	kfree(phba->sli4_hba.lpfc_sglq_active_list);
6856 }
6857 
6858 /**
6859  * lpfc_init_sgl_list - Allocate and initialize sgl list.
6860  * @phba: pointer to lpfc hba data structure.
6861  *
6862  * This routine is invoked to allocate and initizlize the driver's sgl
6863  * list and set up the sgl xritag tag array accordingly.
6864  *
6865  **/
6866 static void
6867 lpfc_init_sgl_list(struct lpfc_hba *phba)
6868 {
6869 	/* Initialize and populate the sglq list per host/VF. */
6870 	INIT_LIST_HEAD(&phba->sli4_hba.lpfc_els_sgl_list);
6871 	INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
6872 	INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_sgl_list);
6873 	INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
6874 
6875 	/* els xri-sgl book keeping */
6876 	phba->sli4_hba.els_xri_cnt = 0;
6877 
6878 	/* scsi xri-buffer book keeping */
6879 	phba->sli4_hba.scsi_xri_cnt = 0;
6880 
6881 	/* nvme xri-buffer book keeping */
6882 	phba->sli4_hba.nvme_xri_cnt = 0;
6883 }
6884 
6885 /**
6886  * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
6887  * @phba: pointer to lpfc hba data structure.
6888  *
6889  * This routine is invoked to post rpi header templates to the
6890  * port for those SLI4 ports that do not support extents.  This routine
6891  * posts a PAGE_SIZE memory region to the port to hold up to
6892  * PAGE_SIZE modulo 64 rpi context headers.  This is an initialization routine
6893  * and should be called only when interrupts are disabled.
6894  *
6895  * Return codes
6896  * 	0 - successful
6897  *	-ERROR - otherwise.
6898  **/
6899 int
6900 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
6901 {
6902 	int rc = 0;
6903 	struct lpfc_rpi_hdr *rpi_hdr;
6904 
6905 	INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
6906 	if (!phba->sli4_hba.rpi_hdrs_in_use)
6907 		return rc;
6908 	if (phba->sli4_hba.extents_in_use)
6909 		return -EIO;
6910 
6911 	rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
6912 	if (!rpi_hdr) {
6913 		lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6914 				"0391 Error during rpi post operation\n");
6915 		lpfc_sli4_remove_rpis(phba);
6916 		rc = -ENODEV;
6917 	}
6918 
6919 	return rc;
6920 }
6921 
6922 /**
6923  * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
6924  * @phba: pointer to lpfc hba data structure.
6925  *
6926  * This routine is invoked to allocate a single 4KB memory region to
6927  * support rpis and stores them in the phba.  This single region
6928  * provides support for up to 64 rpis.  The region is used globally
6929  * by the device.
6930  *
6931  * Returns:
6932  *   A valid rpi hdr on success.
6933  *   A NULL pointer on any failure.
6934  **/
6935 struct lpfc_rpi_hdr *
6936 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
6937 {
6938 	uint16_t rpi_limit, curr_rpi_range;
6939 	struct lpfc_dmabuf *dmabuf;
6940 	struct lpfc_rpi_hdr *rpi_hdr;
6941 
6942 	/*
6943 	 * If the SLI4 port supports extents, posting the rpi header isn't
6944 	 * required.  Set the expected maximum count and let the actual value
6945 	 * get set when extents are fully allocated.
6946 	 */
6947 	if (!phba->sli4_hba.rpi_hdrs_in_use)
6948 		return NULL;
6949 	if (phba->sli4_hba.extents_in_use)
6950 		return NULL;
6951 
6952 	/* The limit on the logical index is just the max_rpi count. */
6953 	rpi_limit = phba->sli4_hba.max_cfg_param.max_rpi;
6954 
6955 	spin_lock_irq(&phba->hbalock);
6956 	/*
6957 	 * Establish the starting RPI in this header block.  The starting
6958 	 * rpi is normalized to a zero base because the physical rpi is
6959 	 * port based.
6960 	 */
6961 	curr_rpi_range = phba->sli4_hba.next_rpi;
6962 	spin_unlock_irq(&phba->hbalock);
6963 
6964 	/* Reached full RPI range */
6965 	if (curr_rpi_range == rpi_limit)
6966 		return NULL;
6967 
6968 	/*
6969 	 * First allocate the protocol header region for the port.  The
6970 	 * port expects a 4KB DMA-mapped memory region that is 4K aligned.
6971 	 */
6972 	dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
6973 	if (!dmabuf)
6974 		return NULL;
6975 
6976 	dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
6977 					  LPFC_HDR_TEMPLATE_SIZE,
6978 					  &dmabuf->phys, GFP_KERNEL);
6979 	if (!dmabuf->virt) {
6980 		rpi_hdr = NULL;
6981 		goto err_free_dmabuf;
6982 	}
6983 
6984 	if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
6985 		rpi_hdr = NULL;
6986 		goto err_free_coherent;
6987 	}
6988 
6989 	/* Save the rpi header data for cleanup later. */
6990 	rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
6991 	if (!rpi_hdr)
6992 		goto err_free_coherent;
6993 
6994 	rpi_hdr->dmabuf = dmabuf;
6995 	rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
6996 	rpi_hdr->page_count = 1;
6997 	spin_lock_irq(&phba->hbalock);
6998 
6999 	/* The rpi_hdr stores the logical index only. */
7000 	rpi_hdr->start_rpi = curr_rpi_range;
7001 	rpi_hdr->next_rpi = phba->sli4_hba.next_rpi + LPFC_RPI_HDR_COUNT;
7002 	list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
7003 
7004 	spin_unlock_irq(&phba->hbalock);
7005 	return rpi_hdr;
7006 
7007  err_free_coherent:
7008 	dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
7009 			  dmabuf->virt, dmabuf->phys);
7010  err_free_dmabuf:
7011 	kfree(dmabuf);
7012 	return NULL;
7013 }
7014 
7015 /**
7016  * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
7017  * @phba: pointer to lpfc hba data structure.
7018  *
7019  * This routine is invoked to remove all memory resources allocated
7020  * to support rpis for SLI4 ports not supporting extents. This routine
7021  * presumes the caller has released all rpis consumed by fabric or port
7022  * logins and is prepared to have the header pages removed.
7023  **/
7024 void
7025 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
7026 {
7027 	struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
7028 
7029 	if (!phba->sli4_hba.rpi_hdrs_in_use)
7030 		goto exit;
7031 
7032 	list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
7033 				 &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
7034 		list_del(&rpi_hdr->list);
7035 		dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
7036 				  rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
7037 		kfree(rpi_hdr->dmabuf);
7038 		kfree(rpi_hdr);
7039 	}
7040  exit:
7041 	/* There are no rpis available to the port now. */
7042 	phba->sli4_hba.next_rpi = 0;
7043 }
7044 
7045 /**
7046  * lpfc_hba_alloc - Allocate driver hba data structure for a device.
7047  * @pdev: pointer to pci device data structure.
7048  *
7049  * This routine is invoked to allocate the driver hba data structure for an
7050  * HBA device. If the allocation is successful, the phba reference to the
7051  * PCI device data structure is set.
7052  *
7053  * Return codes
7054  *      pointer to @phba - successful
7055  *      NULL - error
7056  **/
7057 static struct lpfc_hba *
7058 lpfc_hba_alloc(struct pci_dev *pdev)
7059 {
7060 	struct lpfc_hba *phba;
7061 
7062 	/* Allocate memory for HBA structure */
7063 	phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
7064 	if (!phba) {
7065 		dev_err(&pdev->dev, "failed to allocate hba struct\n");
7066 		return NULL;
7067 	}
7068 
7069 	/* Set reference to PCI device in HBA structure */
7070 	phba->pcidev = pdev;
7071 
7072 	/* Assign an unused board number */
7073 	phba->brd_no = lpfc_get_instance();
7074 	if (phba->brd_no < 0) {
7075 		kfree(phba);
7076 		return NULL;
7077 	}
7078 	phba->eratt_poll_interval = LPFC_ERATT_POLL_INTERVAL;
7079 
7080 	spin_lock_init(&phba->ct_ev_lock);
7081 	INIT_LIST_HEAD(&phba->ct_ev_waiters);
7082 
7083 	return phba;
7084 }
7085 
7086 /**
7087  * lpfc_hba_free - Free driver hba data structure with a device.
7088  * @phba: pointer to lpfc hba data structure.
7089  *
7090  * This routine is invoked to free the driver hba data structure with an
7091  * HBA device.
7092  **/
7093 static void
7094 lpfc_hba_free(struct lpfc_hba *phba)
7095 {
7096 	/* Release the driver assigned board number */
7097 	idr_remove(&lpfc_hba_index, phba->brd_no);
7098 
7099 	/* Free memory allocated with sli3 rings */
7100 	kfree(phba->sli.sli3_ring);
7101 	phba->sli.sli3_ring = NULL;
7102 
7103 	kfree(phba);
7104 	return;
7105 }
7106 
7107 /**
7108  * lpfc_create_shost - Create hba physical port with associated scsi host.
7109  * @phba: pointer to lpfc hba data structure.
7110  *
7111  * This routine is invoked to create HBA physical port and associate a SCSI
7112  * host with it.
7113  *
7114  * Return codes
7115  *      0 - successful
7116  *      other values - error
7117  **/
7118 static int
7119 lpfc_create_shost(struct lpfc_hba *phba)
7120 {
7121 	struct lpfc_vport *vport;
7122 	struct Scsi_Host  *shost;
7123 
7124 	/* Initialize HBA FC structure */
7125 	phba->fc_edtov = FF_DEF_EDTOV;
7126 	phba->fc_ratov = FF_DEF_RATOV;
7127 	phba->fc_altov = FF_DEF_ALTOV;
7128 	phba->fc_arbtov = FF_DEF_ARBTOV;
7129 
7130 	atomic_set(&phba->sdev_cnt, 0);
7131 	atomic_set(&phba->fc4ScsiInputRequests, 0);
7132 	atomic_set(&phba->fc4ScsiOutputRequests, 0);
7133 	atomic_set(&phba->fc4ScsiControlRequests, 0);
7134 	atomic_set(&phba->fc4ScsiIoCmpls, 0);
7135 	vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
7136 	if (!vport)
7137 		return -ENODEV;
7138 
7139 	shost = lpfc_shost_from_vport(vport);
7140 	phba->pport = vport;
7141 
7142 	if (phba->nvmet_support) {
7143 		/* Only 1 vport (pport) will support NVME target */
7144 		if (phba->txrdy_payload_pool == NULL) {
7145 			phba->txrdy_payload_pool = dma_pool_create(
7146 				"txrdy_pool", &phba->pcidev->dev,
7147 				TXRDY_PAYLOAD_LEN, 16, 0);
7148 			if (phba->txrdy_payload_pool) {
7149 				phba->targetport = NULL;
7150 				phba->cfg_enable_fc4_type = LPFC_ENABLE_NVME;
7151 				lpfc_printf_log(phba, KERN_INFO,
7152 						LOG_INIT | LOG_NVME_DISC,
7153 						"6076 NVME Target Found\n");
7154 			}
7155 		}
7156 	}
7157 
7158 	lpfc_debugfs_initialize(vport);
7159 	/* Put reference to SCSI host to driver's device private data */
7160 	pci_set_drvdata(phba->pcidev, shost);
7161 
7162 	/*
7163 	 * At this point we are fully registered with PSA. In addition,
7164 	 * any initial discovery should be completed.
7165 	 */
7166 	vport->load_flag |= FC_ALLOW_FDMI;
7167 	if (phba->cfg_enable_SmartSAN ||
7168 	    (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) {
7169 
7170 		/* Setup appropriate attribute masks */
7171 		vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR;
7172 		if (phba->cfg_enable_SmartSAN)
7173 			vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR;
7174 		else
7175 			vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
7176 	}
7177 	return 0;
7178 }
7179 
7180 /**
7181  * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
7182  * @phba: pointer to lpfc hba data structure.
7183  *
7184  * This routine is invoked to destroy HBA physical port and the associated
7185  * SCSI host.
7186  **/
7187 static void
7188 lpfc_destroy_shost(struct lpfc_hba *phba)
7189 {
7190 	struct lpfc_vport *vport = phba->pport;
7191 
7192 	/* Destroy physical port that associated with the SCSI host */
7193 	destroy_port(vport);
7194 
7195 	return;
7196 }
7197 
7198 /**
7199  * lpfc_setup_bg - Setup Block guard structures and debug areas.
7200  * @phba: pointer to lpfc hba data structure.
7201  * @shost: the shost to be used to detect Block guard settings.
7202  *
7203  * This routine sets up the local Block guard protocol settings for @shost.
7204  * This routine also allocates memory for debugging bg buffers.
7205  **/
7206 static void
7207 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
7208 {
7209 	uint32_t old_mask;
7210 	uint32_t old_guard;
7211 
7212 	int pagecnt = 10;
7213 	if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
7214 		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7215 				"1478 Registering BlockGuard with the "
7216 				"SCSI layer\n");
7217 
7218 		old_mask = phba->cfg_prot_mask;
7219 		old_guard = phba->cfg_prot_guard;
7220 
7221 		/* Only allow supported values */
7222 		phba->cfg_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
7223 			SHOST_DIX_TYPE0_PROTECTION |
7224 			SHOST_DIX_TYPE1_PROTECTION);
7225 		phba->cfg_prot_guard &= (SHOST_DIX_GUARD_IP |
7226 					 SHOST_DIX_GUARD_CRC);
7227 
7228 		/* DIF Type 1 protection for profiles AST1/C1 is end to end */
7229 		if (phba->cfg_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
7230 			phba->cfg_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
7231 
7232 		if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
7233 			if ((old_mask != phba->cfg_prot_mask) ||
7234 				(old_guard != phba->cfg_prot_guard))
7235 				lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7236 					"1475 Registering BlockGuard with the "
7237 					"SCSI layer: mask %d  guard %d\n",
7238 					phba->cfg_prot_mask,
7239 					phba->cfg_prot_guard);
7240 
7241 			scsi_host_set_prot(shost, phba->cfg_prot_mask);
7242 			scsi_host_set_guard(shost, phba->cfg_prot_guard);
7243 		} else
7244 			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7245 				"1479 Not Registering BlockGuard with the SCSI "
7246 				"layer, Bad protection parameters: %d %d\n",
7247 				old_mask, old_guard);
7248 	}
7249 
7250 	if (!_dump_buf_data) {
7251 		while (pagecnt) {
7252 			spin_lock_init(&_dump_buf_lock);
7253 			_dump_buf_data =
7254 				(char *) __get_free_pages(GFP_KERNEL, pagecnt);
7255 			if (_dump_buf_data) {
7256 				lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7257 					"9043 BLKGRD: allocated %d pages for "
7258 				       "_dump_buf_data at 0x%p\n",
7259 				       (1 << pagecnt), _dump_buf_data);
7260 				_dump_buf_data_order = pagecnt;
7261 				memset(_dump_buf_data, 0,
7262 				       ((1 << PAGE_SHIFT) << pagecnt));
7263 				break;
7264 			} else
7265 				--pagecnt;
7266 		}
7267 		if (!_dump_buf_data_order)
7268 			lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7269 				"9044 BLKGRD: ERROR unable to allocate "
7270 			       "memory for hexdump\n");
7271 	} else
7272 		lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7273 			"9045 BLKGRD: already allocated _dump_buf_data=0x%p"
7274 		       "\n", _dump_buf_data);
7275 	if (!_dump_buf_dif) {
7276 		while (pagecnt) {
7277 			_dump_buf_dif =
7278 				(char *) __get_free_pages(GFP_KERNEL, pagecnt);
7279 			if (_dump_buf_dif) {
7280 				lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7281 					"9046 BLKGRD: allocated %d pages for "
7282 				       "_dump_buf_dif at 0x%p\n",
7283 				       (1 << pagecnt), _dump_buf_dif);
7284 				_dump_buf_dif_order = pagecnt;
7285 				memset(_dump_buf_dif, 0,
7286 				       ((1 << PAGE_SHIFT) << pagecnt));
7287 				break;
7288 			} else
7289 				--pagecnt;
7290 		}
7291 		if (!_dump_buf_dif_order)
7292 			lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7293 			"9047 BLKGRD: ERROR unable to allocate "
7294 			       "memory for hexdump\n");
7295 	} else
7296 		lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7297 			"9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
7298 		       _dump_buf_dif);
7299 }
7300 
7301 /**
7302  * lpfc_post_init_setup - Perform necessary device post initialization setup.
7303  * @phba: pointer to lpfc hba data structure.
7304  *
7305  * This routine is invoked to perform all the necessary post initialization
7306  * setup for the device.
7307  **/
7308 static void
7309 lpfc_post_init_setup(struct lpfc_hba *phba)
7310 {
7311 	struct Scsi_Host  *shost;
7312 	struct lpfc_adapter_event_header adapter_event;
7313 
7314 	/* Get the default values for Model Name and Description */
7315 	lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
7316 
7317 	/*
7318 	 * hba setup may have changed the hba_queue_depth so we need to
7319 	 * adjust the value of can_queue.
7320 	 */
7321 	shost = pci_get_drvdata(phba->pcidev);
7322 	shost->can_queue = phba->cfg_hba_queue_depth - 10;
7323 	if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
7324 		lpfc_setup_bg(phba, shost);
7325 
7326 	lpfc_host_attrib_init(shost);
7327 
7328 	if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
7329 		spin_lock_irq(shost->host_lock);
7330 		lpfc_poll_start_timer(phba);
7331 		spin_unlock_irq(shost->host_lock);
7332 	}
7333 
7334 	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7335 			"0428 Perform SCSI scan\n");
7336 	/* Send board arrival event to upper layer */
7337 	adapter_event.event_type = FC_REG_ADAPTER_EVENT;
7338 	adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
7339 	fc_host_post_vendor_event(shost, fc_get_event_number(),
7340 				  sizeof(adapter_event),
7341 				  (char *) &adapter_event,
7342 				  LPFC_NL_VENDOR_ID);
7343 	return;
7344 }
7345 
7346 /**
7347  * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
7348  * @phba: pointer to lpfc hba data structure.
7349  *
7350  * This routine is invoked to set up the PCI device memory space for device
7351  * with SLI-3 interface spec.
7352  *
7353  * Return codes
7354  * 	0 - successful
7355  * 	other values - error
7356  **/
7357 static int
7358 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
7359 {
7360 	struct pci_dev *pdev = phba->pcidev;
7361 	unsigned long bar0map_len, bar2map_len;
7362 	int i, hbq_count;
7363 	void *ptr;
7364 	int error = -ENODEV;
7365 
7366 	if (!pdev)
7367 		return error;
7368 
7369 	/* Set the device DMA mask size */
7370 	if (dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)) ||
7371 	    dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)))
7372 		return error;
7373 
7374 	/* Get the bus address of Bar0 and Bar2 and the number of bytes
7375 	 * required by each mapping.
7376 	 */
7377 	phba->pci_bar0_map = pci_resource_start(pdev, 0);
7378 	bar0map_len = pci_resource_len(pdev, 0);
7379 
7380 	phba->pci_bar2_map = pci_resource_start(pdev, 2);
7381 	bar2map_len = pci_resource_len(pdev, 2);
7382 
7383 	/* Map HBA SLIM to a kernel virtual address. */
7384 	phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
7385 	if (!phba->slim_memmap_p) {
7386 		dev_printk(KERN_ERR, &pdev->dev,
7387 			   "ioremap failed for SLIM memory.\n");
7388 		goto out;
7389 	}
7390 
7391 	/* Map HBA Control Registers to a kernel virtual address. */
7392 	phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
7393 	if (!phba->ctrl_regs_memmap_p) {
7394 		dev_printk(KERN_ERR, &pdev->dev,
7395 			   "ioremap failed for HBA control registers.\n");
7396 		goto out_iounmap_slim;
7397 	}
7398 
7399 	/* Allocate memory for SLI-2 structures */
7400 	phba->slim2p.virt = dma_alloc_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7401 					       &phba->slim2p.phys, GFP_KERNEL);
7402 	if (!phba->slim2p.virt)
7403 		goto out_iounmap;
7404 
7405 	phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
7406 	phba->mbox_ext = (phba->slim2p.virt +
7407 		offsetof(struct lpfc_sli2_slim, mbx_ext_words));
7408 	phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
7409 	phba->IOCBs = (phba->slim2p.virt +
7410 		       offsetof(struct lpfc_sli2_slim, IOCBs));
7411 
7412 	phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
7413 						 lpfc_sli_hbq_size(),
7414 						 &phba->hbqslimp.phys,
7415 						 GFP_KERNEL);
7416 	if (!phba->hbqslimp.virt)
7417 		goto out_free_slim;
7418 
7419 	hbq_count = lpfc_sli_hbq_count();
7420 	ptr = phba->hbqslimp.virt;
7421 	for (i = 0; i < hbq_count; ++i) {
7422 		phba->hbqs[i].hbq_virt = ptr;
7423 		INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
7424 		ptr += (lpfc_hbq_defs[i]->entry_count *
7425 			sizeof(struct lpfc_hbq_entry));
7426 	}
7427 	phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
7428 	phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
7429 
7430 	memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
7431 
7432 	phba->MBslimaddr = phba->slim_memmap_p;
7433 	phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
7434 	phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
7435 	phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
7436 	phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
7437 
7438 	return 0;
7439 
7440 out_free_slim:
7441 	dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7442 			  phba->slim2p.virt, phba->slim2p.phys);
7443 out_iounmap:
7444 	iounmap(phba->ctrl_regs_memmap_p);
7445 out_iounmap_slim:
7446 	iounmap(phba->slim_memmap_p);
7447 out:
7448 	return error;
7449 }
7450 
7451 /**
7452  * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
7453  * @phba: pointer to lpfc hba data structure.
7454  *
7455  * This routine is invoked to unset the PCI device memory space for device
7456  * with SLI-3 interface spec.
7457  **/
7458 static void
7459 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
7460 {
7461 	struct pci_dev *pdev;
7462 
7463 	/* Obtain PCI device reference */
7464 	if (!phba->pcidev)
7465 		return;
7466 	else
7467 		pdev = phba->pcidev;
7468 
7469 	/* Free coherent DMA memory allocated */
7470 	dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
7471 			  phba->hbqslimp.virt, phba->hbqslimp.phys);
7472 	dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7473 			  phba->slim2p.virt, phba->slim2p.phys);
7474 
7475 	/* I/O memory unmap */
7476 	iounmap(phba->ctrl_regs_memmap_p);
7477 	iounmap(phba->slim_memmap_p);
7478 
7479 	return;
7480 }
7481 
7482 /**
7483  * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
7484  * @phba: pointer to lpfc hba data structure.
7485  *
7486  * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
7487  * done and check status.
7488  *
7489  * Return 0 if successful, otherwise -ENODEV.
7490  **/
7491 int
7492 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
7493 {
7494 	struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
7495 	struct lpfc_register reg_data;
7496 	int i, port_error = 0;
7497 	uint32_t if_type;
7498 
7499 	memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
7500 	memset(&reg_data, 0, sizeof(reg_data));
7501 	if (!phba->sli4_hba.PSMPHRregaddr)
7502 		return -ENODEV;
7503 
7504 	/* Wait up to 30 seconds for the SLI Port POST done and ready */
7505 	for (i = 0; i < 3000; i++) {
7506 		if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
7507 			&portsmphr_reg.word0) ||
7508 			(bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
7509 			/* Port has a fatal POST error, break out */
7510 			port_error = -ENODEV;
7511 			break;
7512 		}
7513 		if (LPFC_POST_STAGE_PORT_READY ==
7514 		    bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
7515 			break;
7516 		msleep(10);
7517 	}
7518 
7519 	/*
7520 	 * If there was a port error during POST, then don't proceed with
7521 	 * other register reads as the data may not be valid.  Just exit.
7522 	 */
7523 	if (port_error) {
7524 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7525 			"1408 Port Failed POST - portsmphr=0x%x, "
7526 			"perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
7527 			"scr2=x%x, hscratch=x%x, pstatus=x%x\n",
7528 			portsmphr_reg.word0,
7529 			bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
7530 			bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
7531 			bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
7532 			bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
7533 			bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
7534 			bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
7535 			bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
7536 			bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
7537 	} else {
7538 		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7539 				"2534 Device Info: SLIFamily=0x%x, "
7540 				"SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
7541 				"SLIHint_2=0x%x, FT=0x%x\n",
7542 				bf_get(lpfc_sli_intf_sli_family,
7543 				       &phba->sli4_hba.sli_intf),
7544 				bf_get(lpfc_sli_intf_slirev,
7545 				       &phba->sli4_hba.sli_intf),
7546 				bf_get(lpfc_sli_intf_if_type,
7547 				       &phba->sli4_hba.sli_intf),
7548 				bf_get(lpfc_sli_intf_sli_hint1,
7549 				       &phba->sli4_hba.sli_intf),
7550 				bf_get(lpfc_sli_intf_sli_hint2,
7551 				       &phba->sli4_hba.sli_intf),
7552 				bf_get(lpfc_sli_intf_func_type,
7553 				       &phba->sli4_hba.sli_intf));
7554 		/*
7555 		 * Check for other Port errors during the initialization
7556 		 * process.  Fail the load if the port did not come up
7557 		 * correctly.
7558 		 */
7559 		if_type = bf_get(lpfc_sli_intf_if_type,
7560 				 &phba->sli4_hba.sli_intf);
7561 		switch (if_type) {
7562 		case LPFC_SLI_INTF_IF_TYPE_0:
7563 			phba->sli4_hba.ue_mask_lo =
7564 			      readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
7565 			phba->sli4_hba.ue_mask_hi =
7566 			      readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
7567 			uerrlo_reg.word0 =
7568 			      readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
7569 			uerrhi_reg.word0 =
7570 				readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
7571 			if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
7572 			    (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
7573 				lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7574 						"1422 Unrecoverable Error "
7575 						"Detected during POST "
7576 						"uerr_lo_reg=0x%x, "
7577 						"uerr_hi_reg=0x%x, "
7578 						"ue_mask_lo_reg=0x%x, "
7579 						"ue_mask_hi_reg=0x%x\n",
7580 						uerrlo_reg.word0,
7581 						uerrhi_reg.word0,
7582 						phba->sli4_hba.ue_mask_lo,
7583 						phba->sli4_hba.ue_mask_hi);
7584 				port_error = -ENODEV;
7585 			}
7586 			break;
7587 		case LPFC_SLI_INTF_IF_TYPE_2:
7588 		case LPFC_SLI_INTF_IF_TYPE_6:
7589 			/* Final checks.  The port status should be clean. */
7590 			if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
7591 				&reg_data.word0) ||
7592 				(bf_get(lpfc_sliport_status_err, &reg_data) &&
7593 				 !bf_get(lpfc_sliport_status_rn, &reg_data))) {
7594 				phba->work_status[0] =
7595 					readl(phba->sli4_hba.u.if_type2.
7596 					      ERR1regaddr);
7597 				phba->work_status[1] =
7598 					readl(phba->sli4_hba.u.if_type2.
7599 					      ERR2regaddr);
7600 				lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7601 					"2888 Unrecoverable port error "
7602 					"following POST: port status reg "
7603 					"0x%x, port_smphr reg 0x%x, "
7604 					"error 1=0x%x, error 2=0x%x\n",
7605 					reg_data.word0,
7606 					portsmphr_reg.word0,
7607 					phba->work_status[0],
7608 					phba->work_status[1]);
7609 				port_error = -ENODEV;
7610 			}
7611 			break;
7612 		case LPFC_SLI_INTF_IF_TYPE_1:
7613 		default:
7614 			break;
7615 		}
7616 	}
7617 	return port_error;
7618 }
7619 
7620 /**
7621  * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
7622  * @phba: pointer to lpfc hba data structure.
7623  * @if_type:  The SLI4 interface type getting configured.
7624  *
7625  * This routine is invoked to set up SLI4 BAR0 PCI config space register
7626  * memory map.
7627  **/
7628 static void
7629 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
7630 {
7631 	switch (if_type) {
7632 	case LPFC_SLI_INTF_IF_TYPE_0:
7633 		phba->sli4_hba.u.if_type0.UERRLOregaddr =
7634 			phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
7635 		phba->sli4_hba.u.if_type0.UERRHIregaddr =
7636 			phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
7637 		phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
7638 			phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
7639 		phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
7640 			phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
7641 		phba->sli4_hba.SLIINTFregaddr =
7642 			phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
7643 		break;
7644 	case LPFC_SLI_INTF_IF_TYPE_2:
7645 		phba->sli4_hba.u.if_type2.EQDregaddr =
7646 			phba->sli4_hba.conf_regs_memmap_p +
7647 						LPFC_CTL_PORT_EQ_DELAY_OFFSET;
7648 		phba->sli4_hba.u.if_type2.ERR1regaddr =
7649 			phba->sli4_hba.conf_regs_memmap_p +
7650 						LPFC_CTL_PORT_ER1_OFFSET;
7651 		phba->sli4_hba.u.if_type2.ERR2regaddr =
7652 			phba->sli4_hba.conf_regs_memmap_p +
7653 						LPFC_CTL_PORT_ER2_OFFSET;
7654 		phba->sli4_hba.u.if_type2.CTRLregaddr =
7655 			phba->sli4_hba.conf_regs_memmap_p +
7656 						LPFC_CTL_PORT_CTL_OFFSET;
7657 		phba->sli4_hba.u.if_type2.STATUSregaddr =
7658 			phba->sli4_hba.conf_regs_memmap_p +
7659 						LPFC_CTL_PORT_STA_OFFSET;
7660 		phba->sli4_hba.SLIINTFregaddr =
7661 			phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
7662 		phba->sli4_hba.PSMPHRregaddr =
7663 			phba->sli4_hba.conf_regs_memmap_p +
7664 						LPFC_CTL_PORT_SEM_OFFSET;
7665 		phba->sli4_hba.RQDBregaddr =
7666 			phba->sli4_hba.conf_regs_memmap_p +
7667 						LPFC_ULP0_RQ_DOORBELL;
7668 		phba->sli4_hba.WQDBregaddr =
7669 			phba->sli4_hba.conf_regs_memmap_p +
7670 						LPFC_ULP0_WQ_DOORBELL;
7671 		phba->sli4_hba.CQDBregaddr =
7672 			phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
7673 		phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr;
7674 		phba->sli4_hba.MQDBregaddr =
7675 			phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
7676 		phba->sli4_hba.BMBXregaddr =
7677 			phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
7678 		break;
7679 	case LPFC_SLI_INTF_IF_TYPE_6:
7680 		phba->sli4_hba.u.if_type2.EQDregaddr =
7681 			phba->sli4_hba.conf_regs_memmap_p +
7682 						LPFC_CTL_PORT_EQ_DELAY_OFFSET;
7683 		phba->sli4_hba.u.if_type2.ERR1regaddr =
7684 			phba->sli4_hba.conf_regs_memmap_p +
7685 						LPFC_CTL_PORT_ER1_OFFSET;
7686 		phba->sli4_hba.u.if_type2.ERR2regaddr =
7687 			phba->sli4_hba.conf_regs_memmap_p +
7688 						LPFC_CTL_PORT_ER2_OFFSET;
7689 		phba->sli4_hba.u.if_type2.CTRLregaddr =
7690 			phba->sli4_hba.conf_regs_memmap_p +
7691 						LPFC_CTL_PORT_CTL_OFFSET;
7692 		phba->sli4_hba.u.if_type2.STATUSregaddr =
7693 			phba->sli4_hba.conf_regs_memmap_p +
7694 						LPFC_CTL_PORT_STA_OFFSET;
7695 		phba->sli4_hba.PSMPHRregaddr =
7696 			phba->sli4_hba.conf_regs_memmap_p +
7697 						LPFC_CTL_PORT_SEM_OFFSET;
7698 		phba->sli4_hba.BMBXregaddr =
7699 			phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
7700 		break;
7701 	case LPFC_SLI_INTF_IF_TYPE_1:
7702 	default:
7703 		dev_printk(KERN_ERR, &phba->pcidev->dev,
7704 			   "FATAL - unsupported SLI4 interface type - %d\n",
7705 			   if_type);
7706 		break;
7707 	}
7708 }
7709 
7710 /**
7711  * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
7712  * @phba: pointer to lpfc hba data structure.
7713  *
7714  * This routine is invoked to set up SLI4 BAR1 register memory map.
7715  **/
7716 static void
7717 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
7718 {
7719 	switch (if_type) {
7720 	case LPFC_SLI_INTF_IF_TYPE_0:
7721 		phba->sli4_hba.PSMPHRregaddr =
7722 			phba->sli4_hba.ctrl_regs_memmap_p +
7723 			LPFC_SLIPORT_IF0_SMPHR;
7724 		phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
7725 			LPFC_HST_ISR0;
7726 		phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
7727 			LPFC_HST_IMR0;
7728 		phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
7729 			LPFC_HST_ISCR0;
7730 		break;
7731 	case LPFC_SLI_INTF_IF_TYPE_6:
7732 		phba->sli4_hba.RQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
7733 			LPFC_IF6_RQ_DOORBELL;
7734 		phba->sli4_hba.WQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
7735 			LPFC_IF6_WQ_DOORBELL;
7736 		phba->sli4_hba.CQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
7737 			LPFC_IF6_CQ_DOORBELL;
7738 		phba->sli4_hba.EQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
7739 			LPFC_IF6_EQ_DOORBELL;
7740 		phba->sli4_hba.MQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
7741 			LPFC_IF6_MQ_DOORBELL;
7742 		break;
7743 	case LPFC_SLI_INTF_IF_TYPE_2:
7744 	case LPFC_SLI_INTF_IF_TYPE_1:
7745 	default:
7746 		dev_err(&phba->pcidev->dev,
7747 			   "FATAL - unsupported SLI4 interface type - %d\n",
7748 			   if_type);
7749 		break;
7750 	}
7751 }
7752 
7753 /**
7754  * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
7755  * @phba: pointer to lpfc hba data structure.
7756  * @vf: virtual function number
7757  *
7758  * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
7759  * based on the given viftual function number, @vf.
7760  *
7761  * Return 0 if successful, otherwise -ENODEV.
7762  **/
7763 static int
7764 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
7765 {
7766 	if (vf > LPFC_VIR_FUNC_MAX)
7767 		return -ENODEV;
7768 
7769 	phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7770 				vf * LPFC_VFR_PAGE_SIZE +
7771 					LPFC_ULP0_RQ_DOORBELL);
7772 	phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7773 				vf * LPFC_VFR_PAGE_SIZE +
7774 					LPFC_ULP0_WQ_DOORBELL);
7775 	phba->sli4_hba.CQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7776 				vf * LPFC_VFR_PAGE_SIZE +
7777 					LPFC_EQCQ_DOORBELL);
7778 	phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr;
7779 	phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7780 				vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
7781 	phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7782 				vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
7783 	return 0;
7784 }
7785 
7786 /**
7787  * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
7788  * @phba: pointer to lpfc hba data structure.
7789  *
7790  * This routine is invoked to create the bootstrap mailbox
7791  * region consistent with the SLI-4 interface spec.  This
7792  * routine allocates all memory necessary to communicate
7793  * mailbox commands to the port and sets up all alignment
7794  * needs.  No locks are expected to be held when calling
7795  * this routine.
7796  *
7797  * Return codes
7798  * 	0 - successful
7799  * 	-ENOMEM - could not allocated memory.
7800  **/
7801 static int
7802 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
7803 {
7804 	uint32_t bmbx_size;
7805 	struct lpfc_dmabuf *dmabuf;
7806 	struct dma_address *dma_address;
7807 	uint32_t pa_addr;
7808 	uint64_t phys_addr;
7809 
7810 	dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
7811 	if (!dmabuf)
7812 		return -ENOMEM;
7813 
7814 	/*
7815 	 * The bootstrap mailbox region is comprised of 2 parts
7816 	 * plus an alignment restriction of 16 bytes.
7817 	 */
7818 	bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
7819 	dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, bmbx_size,
7820 					  &dmabuf->phys, GFP_KERNEL);
7821 	if (!dmabuf->virt) {
7822 		kfree(dmabuf);
7823 		return -ENOMEM;
7824 	}
7825 
7826 	/*
7827 	 * Initialize the bootstrap mailbox pointers now so that the register
7828 	 * operations are simple later.  The mailbox dma address is required
7829 	 * to be 16-byte aligned.  Also align the virtual memory as each
7830 	 * maibox is copied into the bmbx mailbox region before issuing the
7831 	 * command to the port.
7832 	 */
7833 	phba->sli4_hba.bmbx.dmabuf = dmabuf;
7834 	phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
7835 
7836 	phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
7837 					      LPFC_ALIGN_16_BYTE);
7838 	phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
7839 					      LPFC_ALIGN_16_BYTE);
7840 
7841 	/*
7842 	 * Set the high and low physical addresses now.  The SLI4 alignment
7843 	 * requirement is 16 bytes and the mailbox is posted to the port
7844 	 * as two 30-bit addresses.  The other data is a bit marking whether
7845 	 * the 30-bit address is the high or low address.
7846 	 * Upcast bmbx aphys to 64bits so shift instruction compiles
7847 	 * clean on 32 bit machines.
7848 	 */
7849 	dma_address = &phba->sli4_hba.bmbx.dma_address;
7850 	phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
7851 	pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
7852 	dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
7853 					   LPFC_BMBX_BIT1_ADDR_HI);
7854 
7855 	pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
7856 	dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
7857 					   LPFC_BMBX_BIT1_ADDR_LO);
7858 	return 0;
7859 }
7860 
7861 /**
7862  * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
7863  * @phba: pointer to lpfc hba data structure.
7864  *
7865  * This routine is invoked to teardown the bootstrap mailbox
7866  * region and release all host resources. This routine requires
7867  * the caller to ensure all mailbox commands recovered, no
7868  * additional mailbox comands are sent, and interrupts are disabled
7869  * before calling this routine.
7870  *
7871  **/
7872 static void
7873 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
7874 {
7875 	dma_free_coherent(&phba->pcidev->dev,
7876 			  phba->sli4_hba.bmbx.bmbx_size,
7877 			  phba->sli4_hba.bmbx.dmabuf->virt,
7878 			  phba->sli4_hba.bmbx.dmabuf->phys);
7879 
7880 	kfree(phba->sli4_hba.bmbx.dmabuf);
7881 	memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
7882 }
7883 
7884 /**
7885  * lpfc_sli4_read_config - Get the config parameters.
7886  * @phba: pointer to lpfc hba data structure.
7887  *
7888  * This routine is invoked to read the configuration parameters from the HBA.
7889  * The configuration parameters are used to set the base and maximum values
7890  * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
7891  * allocation for the port.
7892  *
7893  * Return codes
7894  * 	0 - successful
7895  * 	-ENOMEM - No available memory
7896  *      -EIO - The mailbox failed to complete successfully.
7897  **/
7898 int
7899 lpfc_sli4_read_config(struct lpfc_hba *phba)
7900 {
7901 	LPFC_MBOXQ_t *pmb;
7902 	struct lpfc_mbx_read_config *rd_config;
7903 	union  lpfc_sli4_cfg_shdr *shdr;
7904 	uint32_t shdr_status, shdr_add_status;
7905 	struct lpfc_mbx_get_func_cfg *get_func_cfg;
7906 	struct lpfc_rsrc_desc_fcfcoe *desc;
7907 	char *pdesc_0;
7908 	uint16_t forced_link_speed;
7909 	uint32_t if_type;
7910 	int length, i, rc = 0, rc2;
7911 
7912 	pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7913 	if (!pmb) {
7914 		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7915 				"2011 Unable to allocate memory for issuing "
7916 				"SLI_CONFIG_SPECIAL mailbox command\n");
7917 		return -ENOMEM;
7918 	}
7919 
7920 	lpfc_read_config(phba, pmb);
7921 
7922 	rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
7923 	if (rc != MBX_SUCCESS) {
7924 		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7925 			"2012 Mailbox failed , mbxCmd x%x "
7926 			"READ_CONFIG, mbxStatus x%x\n",
7927 			bf_get(lpfc_mqe_command, &pmb->u.mqe),
7928 			bf_get(lpfc_mqe_status, &pmb->u.mqe));
7929 		rc = -EIO;
7930 	} else {
7931 		rd_config = &pmb->u.mqe.un.rd_config;
7932 		if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
7933 			phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
7934 			phba->sli4_hba.lnk_info.lnk_tp =
7935 				bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
7936 			phba->sli4_hba.lnk_info.lnk_no =
7937 				bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
7938 			lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7939 					"3081 lnk_type:%d, lnk_numb:%d\n",
7940 					phba->sli4_hba.lnk_info.lnk_tp,
7941 					phba->sli4_hba.lnk_info.lnk_no);
7942 		} else
7943 			lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
7944 					"3082 Mailbox (x%x) returned ldv:x0\n",
7945 					bf_get(lpfc_mqe_command, &pmb->u.mqe));
7946 		if (bf_get(lpfc_mbx_rd_conf_bbscn_def, rd_config)) {
7947 			phba->bbcredit_support = 1;
7948 			phba->sli4_hba.bbscn_params.word0 = rd_config->word8;
7949 		}
7950 
7951 		phba->sli4_hba.conf_trunk =
7952 			bf_get(lpfc_mbx_rd_conf_trunk, rd_config);
7953 		phba->sli4_hba.extents_in_use =
7954 			bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
7955 		phba->sli4_hba.max_cfg_param.max_xri =
7956 			bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
7957 		phba->sli4_hba.max_cfg_param.xri_base =
7958 			bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
7959 		phba->sli4_hba.max_cfg_param.max_vpi =
7960 			bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
7961 		/* Limit the max we support */
7962 		if (phba->sli4_hba.max_cfg_param.max_vpi > LPFC_MAX_VPORTS)
7963 			phba->sli4_hba.max_cfg_param.max_vpi = LPFC_MAX_VPORTS;
7964 		phba->sli4_hba.max_cfg_param.vpi_base =
7965 			bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
7966 		phba->sli4_hba.max_cfg_param.max_rpi =
7967 			bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
7968 		phba->sli4_hba.max_cfg_param.rpi_base =
7969 			bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
7970 		phba->sli4_hba.max_cfg_param.max_vfi =
7971 			bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
7972 		phba->sli4_hba.max_cfg_param.vfi_base =
7973 			bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
7974 		phba->sli4_hba.max_cfg_param.max_fcfi =
7975 			bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
7976 		phba->sli4_hba.max_cfg_param.max_eq =
7977 			bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
7978 		phba->sli4_hba.max_cfg_param.max_rq =
7979 			bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
7980 		phba->sli4_hba.max_cfg_param.max_wq =
7981 			bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
7982 		phba->sli4_hba.max_cfg_param.max_cq =
7983 			bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
7984 		phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
7985 		phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
7986 		phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
7987 		phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
7988 		phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
7989 				(phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
7990 		phba->max_vports = phba->max_vpi;
7991 		lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7992 				"2003 cfg params Extents? %d "
7993 				"XRI(B:%d M:%d), "
7994 				"VPI(B:%d M:%d) "
7995 				"VFI(B:%d M:%d) "
7996 				"RPI(B:%d M:%d) "
7997 				"FCFI:%d EQ:%d CQ:%d WQ:%d RQ:%d\n",
7998 				phba->sli4_hba.extents_in_use,
7999 				phba->sli4_hba.max_cfg_param.xri_base,
8000 				phba->sli4_hba.max_cfg_param.max_xri,
8001 				phba->sli4_hba.max_cfg_param.vpi_base,
8002 				phba->sli4_hba.max_cfg_param.max_vpi,
8003 				phba->sli4_hba.max_cfg_param.vfi_base,
8004 				phba->sli4_hba.max_cfg_param.max_vfi,
8005 				phba->sli4_hba.max_cfg_param.rpi_base,
8006 				phba->sli4_hba.max_cfg_param.max_rpi,
8007 				phba->sli4_hba.max_cfg_param.max_fcfi,
8008 				phba->sli4_hba.max_cfg_param.max_eq,
8009 				phba->sli4_hba.max_cfg_param.max_cq,
8010 				phba->sli4_hba.max_cfg_param.max_wq,
8011 				phba->sli4_hba.max_cfg_param.max_rq);
8012 
8013 		/*
8014 		 * Calculate NVME queue resources based on how
8015 		 * many WQ/CQs are available.
8016 		 */
8017 		if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
8018 			length = phba->sli4_hba.max_cfg_param.max_wq;
8019 			if (phba->sli4_hba.max_cfg_param.max_cq <
8020 			    phba->sli4_hba.max_cfg_param.max_wq)
8021 				length = phba->sli4_hba.max_cfg_param.max_cq;
8022 
8023 			/*
8024 			 * Whats left after this can go toward NVME.
8025 			 * The minus 6 accounts for ELS, NVME LS, MBOX
8026 			 * fof plus a couple extra. When configured for
8027 			 * NVMET, FCP io channel WQs are not created.
8028 			 */
8029 			length -= 6;
8030 			if (!phba->nvmet_support)
8031 				length -= phba->cfg_fcp_io_channel;
8032 
8033 			if (phba->cfg_nvme_io_channel > length) {
8034 				lpfc_printf_log(
8035 					phba, KERN_ERR, LOG_SLI,
8036 					"2005 Reducing NVME IO channel to %d: "
8037 					"WQ %d CQ %d NVMEIO %d FCPIO %d\n",
8038 					length,
8039 					phba->sli4_hba.max_cfg_param.max_wq,
8040 					phba->sli4_hba.max_cfg_param.max_cq,
8041 					phba->cfg_nvme_io_channel,
8042 					phba->cfg_fcp_io_channel);
8043 
8044 				phba->cfg_nvme_io_channel = length;
8045 			}
8046 		}
8047 	}
8048 
8049 	if (rc)
8050 		goto read_cfg_out;
8051 
8052 	/* Update link speed if forced link speed is supported */
8053 	if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8054 	if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
8055 		forced_link_speed =
8056 			bf_get(lpfc_mbx_rd_conf_link_speed, rd_config);
8057 		if (forced_link_speed) {
8058 			phba->hba_flag |= HBA_FORCED_LINK_SPEED;
8059 
8060 			switch (forced_link_speed) {
8061 			case LINK_SPEED_1G:
8062 				phba->cfg_link_speed =
8063 					LPFC_USER_LINK_SPEED_1G;
8064 				break;
8065 			case LINK_SPEED_2G:
8066 				phba->cfg_link_speed =
8067 					LPFC_USER_LINK_SPEED_2G;
8068 				break;
8069 			case LINK_SPEED_4G:
8070 				phba->cfg_link_speed =
8071 					LPFC_USER_LINK_SPEED_4G;
8072 				break;
8073 			case LINK_SPEED_8G:
8074 				phba->cfg_link_speed =
8075 					LPFC_USER_LINK_SPEED_8G;
8076 				break;
8077 			case LINK_SPEED_10G:
8078 				phba->cfg_link_speed =
8079 					LPFC_USER_LINK_SPEED_10G;
8080 				break;
8081 			case LINK_SPEED_16G:
8082 				phba->cfg_link_speed =
8083 					LPFC_USER_LINK_SPEED_16G;
8084 				break;
8085 			case LINK_SPEED_32G:
8086 				phba->cfg_link_speed =
8087 					LPFC_USER_LINK_SPEED_32G;
8088 				break;
8089 			case LINK_SPEED_64G:
8090 				phba->cfg_link_speed =
8091 					LPFC_USER_LINK_SPEED_64G;
8092 				break;
8093 			case 0xffff:
8094 				phba->cfg_link_speed =
8095 					LPFC_USER_LINK_SPEED_AUTO;
8096 				break;
8097 			default:
8098 				lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8099 						"0047 Unrecognized link "
8100 						"speed : %d\n",
8101 						forced_link_speed);
8102 				phba->cfg_link_speed =
8103 					LPFC_USER_LINK_SPEED_AUTO;
8104 			}
8105 		}
8106 	}
8107 
8108 	/* Reset the DFT_HBA_Q_DEPTH to the max xri  */
8109 	length = phba->sli4_hba.max_cfg_param.max_xri -
8110 			lpfc_sli4_get_els_iocb_cnt(phba);
8111 	if (phba->cfg_hba_queue_depth > length) {
8112 		lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8113 				"3361 HBA queue depth changed from %d to %d\n",
8114 				phba->cfg_hba_queue_depth, length);
8115 		phba->cfg_hba_queue_depth = length;
8116 	}
8117 
8118 	if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
8119 	    LPFC_SLI_INTF_IF_TYPE_2)
8120 		goto read_cfg_out;
8121 
8122 	/* get the pf# and vf# for SLI4 if_type 2 port */
8123 	length = (sizeof(struct lpfc_mbx_get_func_cfg) -
8124 		  sizeof(struct lpfc_sli4_cfg_mhdr));
8125 	lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
8126 			 LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
8127 			 length, LPFC_SLI4_MBX_EMBED);
8128 
8129 	rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
8130 	shdr = (union lpfc_sli4_cfg_shdr *)
8131 				&pmb->u.mqe.un.sli4_config.header.cfg_shdr;
8132 	shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
8133 	shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
8134 	if (rc2 || shdr_status || shdr_add_status) {
8135 		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8136 				"3026 Mailbox failed , mbxCmd x%x "
8137 				"GET_FUNCTION_CONFIG, mbxStatus x%x\n",
8138 				bf_get(lpfc_mqe_command, &pmb->u.mqe),
8139 				bf_get(lpfc_mqe_status, &pmb->u.mqe));
8140 		goto read_cfg_out;
8141 	}
8142 
8143 	/* search for fc_fcoe resrouce descriptor */
8144 	get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
8145 
8146 	pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
8147 	desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
8148 	length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
8149 	if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
8150 		length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
8151 	else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
8152 		goto read_cfg_out;
8153 
8154 	for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
8155 		desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
8156 		if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
8157 		    bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
8158 			phba->sli4_hba.iov.pf_number =
8159 				bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
8160 			phba->sli4_hba.iov.vf_number =
8161 				bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
8162 			break;
8163 		}
8164 	}
8165 
8166 	if (i < LPFC_RSRC_DESC_MAX_NUM)
8167 		lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8168 				"3027 GET_FUNCTION_CONFIG: pf_number:%d, "
8169 				"vf_number:%d\n", phba->sli4_hba.iov.pf_number,
8170 				phba->sli4_hba.iov.vf_number);
8171 	else
8172 		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8173 				"3028 GET_FUNCTION_CONFIG: failed to find "
8174 				"Resource Descriptor:x%x\n",
8175 				LPFC_RSRC_DESC_TYPE_FCFCOE);
8176 
8177 read_cfg_out:
8178 	mempool_free(pmb, phba->mbox_mem_pool);
8179 	return rc;
8180 }
8181 
8182 /**
8183  * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
8184  * @phba: pointer to lpfc hba data structure.
8185  *
8186  * This routine is invoked to setup the port-side endian order when
8187  * the port if_type is 0.  This routine has no function for other
8188  * if_types.
8189  *
8190  * Return codes
8191  * 	0 - successful
8192  * 	-ENOMEM - No available memory
8193  *      -EIO - The mailbox failed to complete successfully.
8194  **/
8195 static int
8196 lpfc_setup_endian_order(struct lpfc_hba *phba)
8197 {
8198 	LPFC_MBOXQ_t *mboxq;
8199 	uint32_t if_type, rc = 0;
8200 	uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
8201 				      HOST_ENDIAN_HIGH_WORD1};
8202 
8203 	if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8204 	switch (if_type) {
8205 	case LPFC_SLI_INTF_IF_TYPE_0:
8206 		mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
8207 						       GFP_KERNEL);
8208 		if (!mboxq) {
8209 			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8210 					"0492 Unable to allocate memory for "
8211 					"issuing SLI_CONFIG_SPECIAL mailbox "
8212 					"command\n");
8213 			return -ENOMEM;
8214 		}
8215 
8216 		/*
8217 		 * The SLI4_CONFIG_SPECIAL mailbox command requires the first
8218 		 * two words to contain special data values and no other data.
8219 		 */
8220 		memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
8221 		memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
8222 		rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8223 		if (rc != MBX_SUCCESS) {
8224 			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8225 					"0493 SLI_CONFIG_SPECIAL mailbox "
8226 					"failed with status x%x\n",
8227 					rc);
8228 			rc = -EIO;
8229 		}
8230 		mempool_free(mboxq, phba->mbox_mem_pool);
8231 		break;
8232 	case LPFC_SLI_INTF_IF_TYPE_6:
8233 	case LPFC_SLI_INTF_IF_TYPE_2:
8234 	case LPFC_SLI_INTF_IF_TYPE_1:
8235 	default:
8236 		break;
8237 	}
8238 	return rc;
8239 }
8240 
8241 /**
8242  * lpfc_sli4_queue_verify - Verify and update EQ counts
8243  * @phba: pointer to lpfc hba data structure.
8244  *
8245  * This routine is invoked to check the user settable queue counts for EQs.
8246  * After this routine is called the counts will be set to valid values that
8247  * adhere to the constraints of the system's interrupt vectors and the port's
8248  * queue resources.
8249  *
8250  * Return codes
8251  *      0 - successful
8252  *      -ENOMEM - No available memory
8253  **/
8254 static int
8255 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
8256 {
8257 	int io_channel;
8258 	int fof_vectors = phba->cfg_fof ? 1 : 0;
8259 
8260 	/*
8261 	 * Sanity check for configured queue parameters against the run-time
8262 	 * device parameters
8263 	 */
8264 
8265 	/* Sanity check on HBA EQ parameters */
8266 	io_channel = phba->io_channel_irqs;
8267 
8268 	if (phba->sli4_hba.num_online_cpu < io_channel) {
8269 		lpfc_printf_log(phba,
8270 				KERN_ERR, LOG_INIT,
8271 				"3188 Reducing IO channels to match number of "
8272 				"online CPUs: from %d to %d\n",
8273 				io_channel, phba->sli4_hba.num_online_cpu);
8274 		io_channel = phba->sli4_hba.num_online_cpu;
8275 	}
8276 
8277 	if (io_channel + fof_vectors > phba->sli4_hba.max_cfg_param.max_eq) {
8278 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8279 				"2575 Reducing IO channels to match number of "
8280 				"available EQs: from %d to %d\n",
8281 				io_channel,
8282 				phba->sli4_hba.max_cfg_param.max_eq);
8283 		io_channel = phba->sli4_hba.max_cfg_param.max_eq - fof_vectors;
8284 	}
8285 
8286 	/* The actual number of FCP / NVME event queues adopted */
8287 	if (io_channel != phba->io_channel_irqs)
8288 		phba->io_channel_irqs = io_channel;
8289 	if (phba->cfg_fcp_io_channel > io_channel)
8290 		phba->cfg_fcp_io_channel = io_channel;
8291 	if (phba->cfg_nvme_io_channel > io_channel)
8292 		phba->cfg_nvme_io_channel = io_channel;
8293 	if (phba->nvmet_support) {
8294 		if (phba->cfg_nvme_io_channel < phba->cfg_nvmet_mrq)
8295 			phba->cfg_nvmet_mrq = phba->cfg_nvme_io_channel;
8296 	}
8297 	if (phba->cfg_nvmet_mrq > LPFC_NVMET_MRQ_MAX)
8298 		phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_MAX;
8299 
8300 	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8301 			"2574 IO channels: irqs %d fcp %d nvme %d MRQ: %d\n",
8302 			phba->io_channel_irqs, phba->cfg_fcp_io_channel,
8303 			phba->cfg_nvme_io_channel, phba->cfg_nvmet_mrq);
8304 
8305 	/* Get EQ depth from module parameter, fake the default for now */
8306 	phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
8307 	phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
8308 
8309 	/* Get CQ depth from module parameter, fake the default for now */
8310 	phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
8311 	phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
8312 	return 0;
8313 }
8314 
8315 static int
8316 lpfc_alloc_nvme_wq_cq(struct lpfc_hba *phba, int wqidx)
8317 {
8318 	struct lpfc_queue *qdesc;
8319 
8320 	qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
8321 				      phba->sli4_hba.cq_esize,
8322 				      LPFC_CQE_EXP_COUNT);
8323 	if (!qdesc) {
8324 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8325 				"0508 Failed allocate fast-path NVME CQ (%d)\n",
8326 				wqidx);
8327 		return 1;
8328 	}
8329 	qdesc->qe_valid = 1;
8330 	phba->sli4_hba.nvme_cq[wqidx] = qdesc;
8331 
8332 	qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
8333 				      LPFC_WQE128_SIZE, LPFC_WQE_EXP_COUNT);
8334 	if (!qdesc) {
8335 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8336 				"0509 Failed allocate fast-path NVME WQ (%d)\n",
8337 				wqidx);
8338 		return 1;
8339 	}
8340 	phba->sli4_hba.nvme_wq[wqidx] = qdesc;
8341 	list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8342 	return 0;
8343 }
8344 
8345 static int
8346 lpfc_alloc_fcp_wq_cq(struct lpfc_hba *phba, int wqidx)
8347 {
8348 	struct lpfc_queue *qdesc;
8349 	uint32_t wqesize;
8350 
8351 	/* Create Fast Path FCP CQs */
8352 	if (phba->enab_exp_wqcq_pages)
8353 		/* Increase the CQ size when WQEs contain an embedded cdb */
8354 		qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
8355 					      phba->sli4_hba.cq_esize,
8356 					      LPFC_CQE_EXP_COUNT);
8357 
8358 	else
8359 		qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8360 					      phba->sli4_hba.cq_esize,
8361 					      phba->sli4_hba.cq_ecount);
8362 	if (!qdesc) {
8363 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8364 			"0499 Failed allocate fast-path FCP CQ (%d)\n", wqidx);
8365 		return 1;
8366 	}
8367 	qdesc->qe_valid = 1;
8368 	phba->sli4_hba.fcp_cq[wqidx] = qdesc;
8369 
8370 	/* Create Fast Path FCP WQs */
8371 	if (phba->enab_exp_wqcq_pages) {
8372 		/* Increase the WQ size when WQEs contain an embedded cdb */
8373 		wqesize = (phba->fcp_embed_io) ?
8374 			LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize;
8375 		qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
8376 					      wqesize,
8377 					      LPFC_WQE_EXP_COUNT);
8378 	} else
8379 		qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8380 					      phba->sli4_hba.wq_esize,
8381 					      phba->sli4_hba.wq_ecount);
8382 
8383 	if (!qdesc) {
8384 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8385 				"0503 Failed allocate fast-path FCP WQ (%d)\n",
8386 				wqidx);
8387 		return 1;
8388 	}
8389 	phba->sli4_hba.fcp_wq[wqidx] = qdesc;
8390 	list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8391 	return 0;
8392 }
8393 
8394 /**
8395  * lpfc_sli4_queue_create - Create all the SLI4 queues
8396  * @phba: pointer to lpfc hba data structure.
8397  *
8398  * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
8399  * operation. For each SLI4 queue type, the parameters such as queue entry
8400  * count (queue depth) shall be taken from the module parameter. For now,
8401  * we just use some constant number as place holder.
8402  *
8403  * Return codes
8404  *      0 - successful
8405  *      -ENOMEM - No availble memory
8406  *      -EIO - The mailbox failed to complete successfully.
8407  **/
8408 int
8409 lpfc_sli4_queue_create(struct lpfc_hba *phba)
8410 {
8411 	struct lpfc_queue *qdesc;
8412 	int idx, io_channel;
8413 
8414 	/*
8415 	 * Create HBA Record arrays.
8416 	 * Both NVME and FCP will share that same vectors / EQs
8417 	 */
8418 	io_channel = phba->io_channel_irqs;
8419 	if (!io_channel)
8420 		return -ERANGE;
8421 
8422 	phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
8423 	phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
8424 	phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
8425 	phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
8426 	phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
8427 	phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
8428 	phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
8429 	phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
8430 	phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
8431 	phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
8432 
8433 	phba->sli4_hba.hba_eq =  kcalloc(io_channel,
8434 					sizeof(struct lpfc_queue *),
8435 					GFP_KERNEL);
8436 	if (!phba->sli4_hba.hba_eq) {
8437 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8438 			"2576 Failed allocate memory for "
8439 			"fast-path EQ record array\n");
8440 		goto out_error;
8441 	}
8442 
8443 	if (phba->cfg_fcp_io_channel) {
8444 		phba->sli4_hba.fcp_cq = kcalloc(phba->cfg_fcp_io_channel,
8445 						sizeof(struct lpfc_queue *),
8446 						GFP_KERNEL);
8447 		if (!phba->sli4_hba.fcp_cq) {
8448 			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8449 					"2577 Failed allocate memory for "
8450 					"fast-path CQ record array\n");
8451 			goto out_error;
8452 		}
8453 		phba->sli4_hba.fcp_wq = kcalloc(phba->cfg_fcp_io_channel,
8454 						sizeof(struct lpfc_queue *),
8455 						GFP_KERNEL);
8456 		if (!phba->sli4_hba.fcp_wq) {
8457 			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8458 					"2578 Failed allocate memory for "
8459 					"fast-path FCP WQ record array\n");
8460 			goto out_error;
8461 		}
8462 		/*
8463 		 * Since the first EQ can have multiple CQs associated with it,
8464 		 * this array is used to quickly see if we have a FCP fast-path
8465 		 * CQ match.
8466 		 */
8467 		phba->sli4_hba.fcp_cq_map = kcalloc(phba->cfg_fcp_io_channel,
8468 							sizeof(uint16_t),
8469 							GFP_KERNEL);
8470 		if (!phba->sli4_hba.fcp_cq_map) {
8471 			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8472 					"2545 Failed allocate memory for "
8473 					"fast-path CQ map\n");
8474 			goto out_error;
8475 		}
8476 	}
8477 
8478 	if (phba->cfg_nvme_io_channel) {
8479 		phba->sli4_hba.nvme_cq = kcalloc(phba->cfg_nvme_io_channel,
8480 						sizeof(struct lpfc_queue *),
8481 						GFP_KERNEL);
8482 		if (!phba->sli4_hba.nvme_cq) {
8483 			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8484 					"6077 Failed allocate memory for "
8485 					"fast-path CQ record array\n");
8486 			goto out_error;
8487 		}
8488 
8489 		phba->sli4_hba.nvme_wq = kcalloc(phba->cfg_nvme_io_channel,
8490 						sizeof(struct lpfc_queue *),
8491 						GFP_KERNEL);
8492 		if (!phba->sli4_hba.nvme_wq) {
8493 			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8494 					"2581 Failed allocate memory for "
8495 					"fast-path NVME WQ record array\n");
8496 			goto out_error;
8497 		}
8498 
8499 		/*
8500 		 * Since the first EQ can have multiple CQs associated with it,
8501 		 * this array is used to quickly see if we have a NVME fast-path
8502 		 * CQ match.
8503 		 */
8504 		phba->sli4_hba.nvme_cq_map = kcalloc(phba->cfg_nvme_io_channel,
8505 							sizeof(uint16_t),
8506 							GFP_KERNEL);
8507 		if (!phba->sli4_hba.nvme_cq_map) {
8508 			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8509 					"6078 Failed allocate memory for "
8510 					"fast-path CQ map\n");
8511 			goto out_error;
8512 		}
8513 
8514 		if (phba->nvmet_support) {
8515 			phba->sli4_hba.nvmet_cqset = kcalloc(
8516 					phba->cfg_nvmet_mrq,
8517 					sizeof(struct lpfc_queue *),
8518 					GFP_KERNEL);
8519 			if (!phba->sli4_hba.nvmet_cqset) {
8520 				lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8521 					"3121 Fail allocate memory for "
8522 					"fast-path CQ set array\n");
8523 				goto out_error;
8524 			}
8525 			phba->sli4_hba.nvmet_mrq_hdr = kcalloc(
8526 					phba->cfg_nvmet_mrq,
8527 					sizeof(struct lpfc_queue *),
8528 					GFP_KERNEL);
8529 			if (!phba->sli4_hba.nvmet_mrq_hdr) {
8530 				lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8531 					"3122 Fail allocate memory for "
8532 					"fast-path RQ set hdr array\n");
8533 				goto out_error;
8534 			}
8535 			phba->sli4_hba.nvmet_mrq_data = kcalloc(
8536 					phba->cfg_nvmet_mrq,
8537 					sizeof(struct lpfc_queue *),
8538 					GFP_KERNEL);
8539 			if (!phba->sli4_hba.nvmet_mrq_data) {
8540 				lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8541 					"3124 Fail allocate memory for "
8542 					"fast-path RQ set data array\n");
8543 				goto out_error;
8544 			}
8545 		}
8546 	}
8547 
8548 	INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
8549 
8550 	/* Create HBA Event Queues (EQs) */
8551 	for (idx = 0; idx < io_channel; idx++) {
8552 		/* Create EQs */
8553 		qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8554 					      phba->sli4_hba.eq_esize,
8555 					      phba->sli4_hba.eq_ecount);
8556 		if (!qdesc) {
8557 			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8558 					"0497 Failed allocate EQ (%d)\n", idx);
8559 			goto out_error;
8560 		}
8561 		qdesc->qe_valid = 1;
8562 		phba->sli4_hba.hba_eq[idx] = qdesc;
8563 	}
8564 
8565 	/* FCP and NVME io channels are not required to be balanced */
8566 
8567 	for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++)
8568 		if (lpfc_alloc_fcp_wq_cq(phba, idx))
8569 			goto out_error;
8570 
8571 	for (idx = 0; idx < phba->cfg_nvme_io_channel; idx++)
8572 		if (lpfc_alloc_nvme_wq_cq(phba, idx))
8573 			goto out_error;
8574 
8575 	if (phba->nvmet_support) {
8576 		for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
8577 			qdesc = lpfc_sli4_queue_alloc(phba,
8578 						      LPFC_DEFAULT_PAGE_SIZE,
8579 						      phba->sli4_hba.cq_esize,
8580 						      phba->sli4_hba.cq_ecount);
8581 			if (!qdesc) {
8582 				lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8583 					"3142 Failed allocate NVME "
8584 					"CQ Set (%d)\n", idx);
8585 				goto out_error;
8586 			}
8587 			qdesc->qe_valid = 1;
8588 			phba->sli4_hba.nvmet_cqset[idx] = qdesc;
8589 		}
8590 	}
8591 
8592 	/*
8593 	 * Create Slow Path Completion Queues (CQs)
8594 	 */
8595 
8596 	/* Create slow-path Mailbox Command Complete Queue */
8597 	qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8598 				      phba->sli4_hba.cq_esize,
8599 				      phba->sli4_hba.cq_ecount);
8600 	if (!qdesc) {
8601 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8602 				"0500 Failed allocate slow-path mailbox CQ\n");
8603 		goto out_error;
8604 	}
8605 	qdesc->qe_valid = 1;
8606 	phba->sli4_hba.mbx_cq = qdesc;
8607 
8608 	/* Create slow-path ELS Complete Queue */
8609 	qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8610 				      phba->sli4_hba.cq_esize,
8611 				      phba->sli4_hba.cq_ecount);
8612 	if (!qdesc) {
8613 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8614 				"0501 Failed allocate slow-path ELS CQ\n");
8615 		goto out_error;
8616 	}
8617 	qdesc->qe_valid = 1;
8618 	phba->sli4_hba.els_cq = qdesc;
8619 
8620 
8621 	/*
8622 	 * Create Slow Path Work Queues (WQs)
8623 	 */
8624 
8625 	/* Create Mailbox Command Queue */
8626 
8627 	qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8628 				      phba->sli4_hba.mq_esize,
8629 				      phba->sli4_hba.mq_ecount);
8630 	if (!qdesc) {
8631 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8632 				"0505 Failed allocate slow-path MQ\n");
8633 		goto out_error;
8634 	}
8635 	phba->sli4_hba.mbx_wq = qdesc;
8636 
8637 	/*
8638 	 * Create ELS Work Queues
8639 	 */
8640 
8641 	/* Create slow-path ELS Work Queue */
8642 	qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8643 				      phba->sli4_hba.wq_esize,
8644 				      phba->sli4_hba.wq_ecount);
8645 	if (!qdesc) {
8646 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8647 				"0504 Failed allocate slow-path ELS WQ\n");
8648 		goto out_error;
8649 	}
8650 	phba->sli4_hba.els_wq = qdesc;
8651 	list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8652 
8653 	if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
8654 		/* Create NVME LS Complete Queue */
8655 		qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8656 					      phba->sli4_hba.cq_esize,
8657 					      phba->sli4_hba.cq_ecount);
8658 		if (!qdesc) {
8659 			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8660 					"6079 Failed allocate NVME LS CQ\n");
8661 			goto out_error;
8662 		}
8663 		qdesc->qe_valid = 1;
8664 		phba->sli4_hba.nvmels_cq = qdesc;
8665 
8666 		/* Create NVME LS Work Queue */
8667 		qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8668 					      phba->sli4_hba.wq_esize,
8669 					      phba->sli4_hba.wq_ecount);
8670 		if (!qdesc) {
8671 			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8672 					"6080 Failed allocate NVME LS WQ\n");
8673 			goto out_error;
8674 		}
8675 		phba->sli4_hba.nvmels_wq = qdesc;
8676 		list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8677 	}
8678 
8679 	/*
8680 	 * Create Receive Queue (RQ)
8681 	 */
8682 
8683 	/* Create Receive Queue for header */
8684 	qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8685 				      phba->sli4_hba.rq_esize,
8686 				      phba->sli4_hba.rq_ecount);
8687 	if (!qdesc) {
8688 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8689 				"0506 Failed allocate receive HRQ\n");
8690 		goto out_error;
8691 	}
8692 	phba->sli4_hba.hdr_rq = qdesc;
8693 
8694 	/* Create Receive Queue for data */
8695 	qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8696 				      phba->sli4_hba.rq_esize,
8697 				      phba->sli4_hba.rq_ecount);
8698 	if (!qdesc) {
8699 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8700 				"0507 Failed allocate receive DRQ\n");
8701 		goto out_error;
8702 	}
8703 	phba->sli4_hba.dat_rq = qdesc;
8704 
8705 	if (phba->nvmet_support) {
8706 		for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
8707 			/* Create NVMET Receive Queue for header */
8708 			qdesc = lpfc_sli4_queue_alloc(phba,
8709 						      LPFC_DEFAULT_PAGE_SIZE,
8710 						      phba->sli4_hba.rq_esize,
8711 						      LPFC_NVMET_RQE_DEF_COUNT);
8712 			if (!qdesc) {
8713 				lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8714 						"3146 Failed allocate "
8715 						"receive HRQ\n");
8716 				goto out_error;
8717 			}
8718 			phba->sli4_hba.nvmet_mrq_hdr[idx] = qdesc;
8719 
8720 			/* Only needed for header of RQ pair */
8721 			qdesc->rqbp = kzalloc(sizeof(struct lpfc_rqb),
8722 					      GFP_KERNEL);
8723 			if (qdesc->rqbp == NULL) {
8724 				lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8725 						"6131 Failed allocate "
8726 						"Header RQBP\n");
8727 				goto out_error;
8728 			}
8729 
8730 			/* Put list in known state in case driver load fails. */
8731 			INIT_LIST_HEAD(&qdesc->rqbp->rqb_buffer_list);
8732 
8733 			/* Create NVMET Receive Queue for data */
8734 			qdesc = lpfc_sli4_queue_alloc(phba,
8735 						      LPFC_DEFAULT_PAGE_SIZE,
8736 						      phba->sli4_hba.rq_esize,
8737 						      LPFC_NVMET_RQE_DEF_COUNT);
8738 			if (!qdesc) {
8739 				lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8740 						"3156 Failed allocate "
8741 						"receive DRQ\n");
8742 				goto out_error;
8743 			}
8744 			phba->sli4_hba.nvmet_mrq_data[idx] = qdesc;
8745 		}
8746 	}
8747 
8748 	/* Create the Queues needed for Flash Optimized Fabric operations */
8749 	if (phba->cfg_fof)
8750 		lpfc_fof_queue_create(phba);
8751 	return 0;
8752 
8753 out_error:
8754 	lpfc_sli4_queue_destroy(phba);
8755 	return -ENOMEM;
8756 }
8757 
8758 static inline void
8759 __lpfc_sli4_release_queue(struct lpfc_queue **qp)
8760 {
8761 	if (*qp != NULL) {
8762 		lpfc_sli4_queue_free(*qp);
8763 		*qp = NULL;
8764 	}
8765 }
8766 
8767 static inline void
8768 lpfc_sli4_release_queues(struct lpfc_queue ***qs, int max)
8769 {
8770 	int idx;
8771 
8772 	if (*qs == NULL)
8773 		return;
8774 
8775 	for (idx = 0; idx < max; idx++)
8776 		__lpfc_sli4_release_queue(&(*qs)[idx]);
8777 
8778 	kfree(*qs);
8779 	*qs = NULL;
8780 }
8781 
8782 static inline void
8783 lpfc_sli4_release_queue_map(uint16_t **qmap)
8784 {
8785 	if (*qmap != NULL) {
8786 		kfree(*qmap);
8787 		*qmap = NULL;
8788 	}
8789 }
8790 
8791 /**
8792  * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
8793  * @phba: pointer to lpfc hba data structure.
8794  *
8795  * This routine is invoked to release all the SLI4 queues with the FCoE HBA
8796  * operation.
8797  *
8798  * Return codes
8799  *      0 - successful
8800  *      -ENOMEM - No available memory
8801  *      -EIO - The mailbox failed to complete successfully.
8802  **/
8803 void
8804 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
8805 {
8806 	if (phba->cfg_fof)
8807 		lpfc_fof_queue_destroy(phba);
8808 
8809 	/* Release HBA eqs */
8810 	lpfc_sli4_release_queues(&phba->sli4_hba.hba_eq, phba->io_channel_irqs);
8811 
8812 	/* Release FCP cqs */
8813 	lpfc_sli4_release_queues(&phba->sli4_hba.fcp_cq,
8814 				 phba->cfg_fcp_io_channel);
8815 
8816 	/* Release FCP wqs */
8817 	lpfc_sli4_release_queues(&phba->sli4_hba.fcp_wq,
8818 				 phba->cfg_fcp_io_channel);
8819 
8820 	/* Release FCP CQ mapping array */
8821 	lpfc_sli4_release_queue_map(&phba->sli4_hba.fcp_cq_map);
8822 
8823 	/* Release NVME cqs */
8824 	lpfc_sli4_release_queues(&phba->sli4_hba.nvme_cq,
8825 					phba->cfg_nvme_io_channel);
8826 
8827 	/* Release NVME wqs */
8828 	lpfc_sli4_release_queues(&phba->sli4_hba.nvme_wq,
8829 					phba->cfg_nvme_io_channel);
8830 
8831 	/* Release NVME CQ mapping array */
8832 	lpfc_sli4_release_queue_map(&phba->sli4_hba.nvme_cq_map);
8833 
8834 	if (phba->nvmet_support) {
8835 		lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_cqset,
8836 					 phba->cfg_nvmet_mrq);
8837 
8838 		lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_hdr,
8839 					 phba->cfg_nvmet_mrq);
8840 		lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_data,
8841 					 phba->cfg_nvmet_mrq);
8842 	}
8843 
8844 	/* Release mailbox command work queue */
8845 	__lpfc_sli4_release_queue(&phba->sli4_hba.mbx_wq);
8846 
8847 	/* Release ELS work queue */
8848 	__lpfc_sli4_release_queue(&phba->sli4_hba.els_wq);
8849 
8850 	/* Release ELS work queue */
8851 	__lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_wq);
8852 
8853 	/* Release unsolicited receive queue */
8854 	__lpfc_sli4_release_queue(&phba->sli4_hba.hdr_rq);
8855 	__lpfc_sli4_release_queue(&phba->sli4_hba.dat_rq);
8856 
8857 	/* Release ELS complete queue */
8858 	__lpfc_sli4_release_queue(&phba->sli4_hba.els_cq);
8859 
8860 	/* Release NVME LS complete queue */
8861 	__lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_cq);
8862 
8863 	/* Release mailbox command complete queue */
8864 	__lpfc_sli4_release_queue(&phba->sli4_hba.mbx_cq);
8865 
8866 	/* Everything on this list has been freed */
8867 	INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
8868 }
8869 
8870 int
8871 lpfc_free_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *rq)
8872 {
8873 	struct lpfc_rqb *rqbp;
8874 	struct lpfc_dmabuf *h_buf;
8875 	struct rqb_dmabuf *rqb_buffer;
8876 
8877 	rqbp = rq->rqbp;
8878 	while (!list_empty(&rqbp->rqb_buffer_list)) {
8879 		list_remove_head(&rqbp->rqb_buffer_list, h_buf,
8880 				 struct lpfc_dmabuf, list);
8881 
8882 		rqb_buffer = container_of(h_buf, struct rqb_dmabuf, hbuf);
8883 		(rqbp->rqb_free_buffer)(phba, rqb_buffer);
8884 		rqbp->buffer_count--;
8885 	}
8886 	return 1;
8887 }
8888 
8889 static int
8890 lpfc_create_wq_cq(struct lpfc_hba *phba, struct lpfc_queue *eq,
8891 	struct lpfc_queue *cq, struct lpfc_queue *wq, uint16_t *cq_map,
8892 	int qidx, uint32_t qtype)
8893 {
8894 	struct lpfc_sli_ring *pring;
8895 	int rc;
8896 
8897 	if (!eq || !cq || !wq) {
8898 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8899 			"6085 Fast-path %s (%d) not allocated\n",
8900 			((eq) ? ((cq) ? "WQ" : "CQ") : "EQ"), qidx);
8901 		return -ENOMEM;
8902 	}
8903 
8904 	/* create the Cq first */
8905 	rc = lpfc_cq_create(phba, cq, eq,
8906 			(qtype == LPFC_MBOX) ? LPFC_MCQ : LPFC_WCQ, qtype);
8907 	if (rc) {
8908 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8909 			"6086 Failed setup of CQ (%d), rc = 0x%x\n",
8910 			qidx, (uint32_t)rc);
8911 		return rc;
8912 	}
8913 	cq->chann = qidx;
8914 
8915 	if (qtype != LPFC_MBOX) {
8916 		/* Setup nvme_cq_map for fast lookup */
8917 		if (cq_map)
8918 			*cq_map = cq->queue_id;
8919 
8920 		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8921 			"6087 CQ setup: cq[%d]-id=%d, parent eq[%d]-id=%d\n",
8922 			qidx, cq->queue_id, qidx, eq->queue_id);
8923 
8924 		/* create the wq */
8925 		rc = lpfc_wq_create(phba, wq, cq, qtype);
8926 		if (rc) {
8927 			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8928 				"6123 Fail setup fastpath WQ (%d), rc = 0x%x\n",
8929 				qidx, (uint32_t)rc);
8930 			/* no need to tear down cq - caller will do so */
8931 			return rc;
8932 		}
8933 		wq->chann = qidx;
8934 
8935 		/* Bind this CQ/WQ to the NVME ring */
8936 		pring = wq->pring;
8937 		pring->sli.sli4.wqp = (void *)wq;
8938 		cq->pring = pring;
8939 
8940 		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8941 			"2593 WQ setup: wq[%d]-id=%d assoc=%d, cq[%d]-id=%d\n",
8942 			qidx, wq->queue_id, wq->assoc_qid, qidx, cq->queue_id);
8943 	} else {
8944 		rc = lpfc_mq_create(phba, wq, cq, LPFC_MBOX);
8945 		if (rc) {
8946 			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8947 				"0539 Failed setup of slow-path MQ: "
8948 				"rc = 0x%x\n", rc);
8949 			/* no need to tear down cq - caller will do so */
8950 			return rc;
8951 		}
8952 
8953 		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8954 			"2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
8955 			phba->sli4_hba.mbx_wq->queue_id,
8956 			phba->sli4_hba.mbx_cq->queue_id);
8957 	}
8958 
8959 	return 0;
8960 }
8961 
8962 /**
8963  * lpfc_sli4_queue_setup - Set up all the SLI4 queues
8964  * @phba: pointer to lpfc hba data structure.
8965  *
8966  * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
8967  * operation.
8968  *
8969  * Return codes
8970  *      0 - successful
8971  *      -ENOMEM - No available memory
8972  *      -EIO - The mailbox failed to complete successfully.
8973  **/
8974 int
8975 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
8976 {
8977 	uint32_t shdr_status, shdr_add_status;
8978 	union lpfc_sli4_cfg_shdr *shdr;
8979 	LPFC_MBOXQ_t *mboxq;
8980 	int qidx;
8981 	uint32_t length, io_channel;
8982 	int rc = -ENOMEM;
8983 
8984 	/* Check for dual-ULP support */
8985 	mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
8986 	if (!mboxq) {
8987 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8988 				"3249 Unable to allocate memory for "
8989 				"QUERY_FW_CFG mailbox command\n");
8990 		return -ENOMEM;
8991 	}
8992 	length = (sizeof(struct lpfc_mbx_query_fw_config) -
8993 		  sizeof(struct lpfc_sli4_cfg_mhdr));
8994 	lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
8995 			 LPFC_MBOX_OPCODE_QUERY_FW_CFG,
8996 			 length, LPFC_SLI4_MBX_EMBED);
8997 
8998 	rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8999 
9000 	shdr = (union lpfc_sli4_cfg_shdr *)
9001 			&mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
9002 	shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9003 	shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
9004 	if (shdr_status || shdr_add_status || rc) {
9005 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9006 				"3250 QUERY_FW_CFG mailbox failed with status "
9007 				"x%x add_status x%x, mbx status x%x\n",
9008 				shdr_status, shdr_add_status, rc);
9009 		if (rc != MBX_TIMEOUT)
9010 			mempool_free(mboxq, phba->mbox_mem_pool);
9011 		rc = -ENXIO;
9012 		goto out_error;
9013 	}
9014 
9015 	phba->sli4_hba.fw_func_mode =
9016 			mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode;
9017 	phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode;
9018 	phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode;
9019 	phba->sli4_hba.physical_port =
9020 			mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port;
9021 	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9022 			"3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, "
9023 			"ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode,
9024 			phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode);
9025 
9026 	if (rc != MBX_TIMEOUT)
9027 		mempool_free(mboxq, phba->mbox_mem_pool);
9028 
9029 	/*
9030 	 * Set up HBA Event Queues (EQs)
9031 	 */
9032 	io_channel = phba->io_channel_irqs;
9033 
9034 	/* Set up HBA event queue */
9035 	if (io_channel && !phba->sli4_hba.hba_eq) {
9036 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9037 				"3147 Fast-path EQs not allocated\n");
9038 		rc = -ENOMEM;
9039 		goto out_error;
9040 	}
9041 	for (qidx = 0; qidx < io_channel; qidx++) {
9042 		if (!phba->sli4_hba.hba_eq[qidx]) {
9043 			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9044 					"0522 Fast-path EQ (%d) not "
9045 					"allocated\n", qidx);
9046 			rc = -ENOMEM;
9047 			goto out_destroy;
9048 		}
9049 		rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[qidx],
9050 						phba->cfg_fcp_imax);
9051 		if (rc) {
9052 			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9053 					"0523 Failed setup of fast-path EQ "
9054 					"(%d), rc = 0x%x\n", qidx,
9055 					(uint32_t)rc);
9056 			goto out_destroy;
9057 		}
9058 		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9059 				"2584 HBA EQ setup: queue[%d]-id=%d\n",
9060 				qidx, phba->sli4_hba.hba_eq[qidx]->queue_id);
9061 	}
9062 
9063 	if (phba->cfg_nvme_io_channel) {
9064 		if (!phba->sli4_hba.nvme_cq || !phba->sli4_hba.nvme_wq) {
9065 			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9066 				"6084 Fast-path NVME %s array not allocated\n",
9067 				(phba->sli4_hba.nvme_cq) ? "CQ" : "WQ");
9068 			rc = -ENOMEM;
9069 			goto out_destroy;
9070 		}
9071 
9072 		for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++) {
9073 			rc = lpfc_create_wq_cq(phba,
9074 					phba->sli4_hba.hba_eq[
9075 						qidx % io_channel],
9076 					phba->sli4_hba.nvme_cq[qidx],
9077 					phba->sli4_hba.nvme_wq[qidx],
9078 					&phba->sli4_hba.nvme_cq_map[qidx],
9079 					qidx, LPFC_NVME);
9080 			if (rc) {
9081 				lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9082 					"6123 Failed to setup fastpath "
9083 					"NVME WQ/CQ (%d), rc = 0x%x\n",
9084 					qidx, (uint32_t)rc);
9085 				goto out_destroy;
9086 			}
9087 		}
9088 	}
9089 
9090 	if (phba->cfg_fcp_io_channel) {
9091 		/* Set up fast-path FCP Response Complete Queue */
9092 		if (!phba->sli4_hba.fcp_cq || !phba->sli4_hba.fcp_wq) {
9093 			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9094 				"3148 Fast-path FCP %s array not allocated\n",
9095 				phba->sli4_hba.fcp_cq ? "WQ" : "CQ");
9096 			rc = -ENOMEM;
9097 			goto out_destroy;
9098 		}
9099 
9100 		for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++) {
9101 			rc = lpfc_create_wq_cq(phba,
9102 					phba->sli4_hba.hba_eq[
9103 						qidx % io_channel],
9104 					phba->sli4_hba.fcp_cq[qidx],
9105 					phba->sli4_hba.fcp_wq[qidx],
9106 					&phba->sli4_hba.fcp_cq_map[qidx],
9107 					qidx, LPFC_FCP);
9108 			if (rc) {
9109 				lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9110 					"0535 Failed to setup fastpath "
9111 					"FCP WQ/CQ (%d), rc = 0x%x\n",
9112 					qidx, (uint32_t)rc);
9113 				goto out_destroy;
9114 			}
9115 		}
9116 	}
9117 
9118 	/*
9119 	 * Set up Slow Path Complete Queues (CQs)
9120 	 */
9121 
9122 	/* Set up slow-path MBOX CQ/MQ */
9123 
9124 	if (!phba->sli4_hba.mbx_cq || !phba->sli4_hba.mbx_wq) {
9125 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9126 				"0528 %s not allocated\n",
9127 				phba->sli4_hba.mbx_cq ?
9128 				"Mailbox WQ" : "Mailbox CQ");
9129 		rc = -ENOMEM;
9130 		goto out_destroy;
9131 	}
9132 
9133 	rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0],
9134 			       phba->sli4_hba.mbx_cq,
9135 			       phba->sli4_hba.mbx_wq,
9136 			       NULL, 0, LPFC_MBOX);
9137 	if (rc) {
9138 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9139 			"0529 Failed setup of mailbox WQ/CQ: rc = 0x%x\n",
9140 			(uint32_t)rc);
9141 		goto out_destroy;
9142 	}
9143 	if (phba->nvmet_support) {
9144 		if (!phba->sli4_hba.nvmet_cqset) {
9145 			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9146 					"3165 Fast-path NVME CQ Set "
9147 					"array not allocated\n");
9148 			rc = -ENOMEM;
9149 			goto out_destroy;
9150 		}
9151 		if (phba->cfg_nvmet_mrq > 1) {
9152 			rc = lpfc_cq_create_set(phba,
9153 					phba->sli4_hba.nvmet_cqset,
9154 					phba->sli4_hba.hba_eq,
9155 					LPFC_WCQ, LPFC_NVMET);
9156 			if (rc) {
9157 				lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9158 						"3164 Failed setup of NVME CQ "
9159 						"Set, rc = 0x%x\n",
9160 						(uint32_t)rc);
9161 				goto out_destroy;
9162 			}
9163 		} else {
9164 			/* Set up NVMET Receive Complete Queue */
9165 			rc = lpfc_cq_create(phba, phba->sli4_hba.nvmet_cqset[0],
9166 					    phba->sli4_hba.hba_eq[0],
9167 					    LPFC_WCQ, LPFC_NVMET);
9168 			if (rc) {
9169 				lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9170 						"6089 Failed setup NVMET CQ: "
9171 						"rc = 0x%x\n", (uint32_t)rc);
9172 				goto out_destroy;
9173 			}
9174 			phba->sli4_hba.nvmet_cqset[0]->chann = 0;
9175 
9176 			lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9177 					"6090 NVMET CQ setup: cq-id=%d, "
9178 					"parent eq-id=%d\n",
9179 					phba->sli4_hba.nvmet_cqset[0]->queue_id,
9180 					phba->sli4_hba.hba_eq[0]->queue_id);
9181 		}
9182 	}
9183 
9184 	/* Set up slow-path ELS WQ/CQ */
9185 	if (!phba->sli4_hba.els_cq || !phba->sli4_hba.els_wq) {
9186 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9187 				"0530 ELS %s not allocated\n",
9188 				phba->sli4_hba.els_cq ? "WQ" : "CQ");
9189 		rc = -ENOMEM;
9190 		goto out_destroy;
9191 	}
9192 	rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0],
9193 					phba->sli4_hba.els_cq,
9194 					phba->sli4_hba.els_wq,
9195 					NULL, 0, LPFC_ELS);
9196 	if (rc) {
9197 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9198 			"0529 Failed setup of ELS WQ/CQ: rc = 0x%x\n",
9199 			(uint32_t)rc);
9200 		goto out_destroy;
9201 	}
9202 	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9203 			"2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
9204 			phba->sli4_hba.els_wq->queue_id,
9205 			phba->sli4_hba.els_cq->queue_id);
9206 
9207 	if (phba->cfg_nvme_io_channel) {
9208 		/* Set up NVME LS Complete Queue */
9209 		if (!phba->sli4_hba.nvmels_cq || !phba->sli4_hba.nvmels_wq) {
9210 			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9211 					"6091 LS %s not allocated\n",
9212 					phba->sli4_hba.nvmels_cq ? "WQ" : "CQ");
9213 			rc = -ENOMEM;
9214 			goto out_destroy;
9215 		}
9216 		rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0],
9217 					phba->sli4_hba.nvmels_cq,
9218 					phba->sli4_hba.nvmels_wq,
9219 					NULL, 0, LPFC_NVME_LS);
9220 		if (rc) {
9221 			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9222 				"0529 Failed setup of NVVME LS WQ/CQ: "
9223 				"rc = 0x%x\n", (uint32_t)rc);
9224 			goto out_destroy;
9225 		}
9226 
9227 		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9228 				"6096 ELS WQ setup: wq-id=%d, "
9229 				"parent cq-id=%d\n",
9230 				phba->sli4_hba.nvmels_wq->queue_id,
9231 				phba->sli4_hba.nvmels_cq->queue_id);
9232 	}
9233 
9234 	/*
9235 	 * Create NVMET Receive Queue (RQ)
9236 	 */
9237 	if (phba->nvmet_support) {
9238 		if ((!phba->sli4_hba.nvmet_cqset) ||
9239 		    (!phba->sli4_hba.nvmet_mrq_hdr) ||
9240 		    (!phba->sli4_hba.nvmet_mrq_data)) {
9241 			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9242 					"6130 MRQ CQ Queues not "
9243 					"allocated\n");
9244 			rc = -ENOMEM;
9245 			goto out_destroy;
9246 		}
9247 		if (phba->cfg_nvmet_mrq > 1) {
9248 			rc = lpfc_mrq_create(phba,
9249 					     phba->sli4_hba.nvmet_mrq_hdr,
9250 					     phba->sli4_hba.nvmet_mrq_data,
9251 					     phba->sli4_hba.nvmet_cqset,
9252 					     LPFC_NVMET);
9253 			if (rc) {
9254 				lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9255 						"6098 Failed setup of NVMET "
9256 						"MRQ: rc = 0x%x\n",
9257 						(uint32_t)rc);
9258 				goto out_destroy;
9259 			}
9260 
9261 		} else {
9262 			rc = lpfc_rq_create(phba,
9263 					    phba->sli4_hba.nvmet_mrq_hdr[0],
9264 					    phba->sli4_hba.nvmet_mrq_data[0],
9265 					    phba->sli4_hba.nvmet_cqset[0],
9266 					    LPFC_NVMET);
9267 			if (rc) {
9268 				lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9269 						"6057 Failed setup of NVMET "
9270 						"Receive Queue: rc = 0x%x\n",
9271 						(uint32_t)rc);
9272 				goto out_destroy;
9273 			}
9274 
9275 			lpfc_printf_log(
9276 				phba, KERN_INFO, LOG_INIT,
9277 				"6099 NVMET RQ setup: hdr-rq-id=%d, "
9278 				"dat-rq-id=%d parent cq-id=%d\n",
9279 				phba->sli4_hba.nvmet_mrq_hdr[0]->queue_id,
9280 				phba->sli4_hba.nvmet_mrq_data[0]->queue_id,
9281 				phba->sli4_hba.nvmet_cqset[0]->queue_id);
9282 
9283 		}
9284 	}
9285 
9286 	if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
9287 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9288 				"0540 Receive Queue not allocated\n");
9289 		rc = -ENOMEM;
9290 		goto out_destroy;
9291 	}
9292 
9293 	rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
9294 			    phba->sli4_hba.els_cq, LPFC_USOL);
9295 	if (rc) {
9296 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9297 				"0541 Failed setup of Receive Queue: "
9298 				"rc = 0x%x\n", (uint32_t)rc);
9299 		goto out_destroy;
9300 	}
9301 
9302 	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9303 			"2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
9304 			"parent cq-id=%d\n",
9305 			phba->sli4_hba.hdr_rq->queue_id,
9306 			phba->sli4_hba.dat_rq->queue_id,
9307 			phba->sli4_hba.els_cq->queue_id);
9308 
9309 	if (phba->cfg_fof) {
9310 		rc = lpfc_fof_queue_setup(phba);
9311 		if (rc) {
9312 			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9313 					"0549 Failed setup of FOF Queues: "
9314 					"rc = 0x%x\n", rc);
9315 			goto out_destroy;
9316 		}
9317 	}
9318 
9319 	for (qidx = 0; qidx < io_channel; qidx += LPFC_MAX_EQ_DELAY_EQID_CNT)
9320 		lpfc_modify_hba_eq_delay(phba, qidx, LPFC_MAX_EQ_DELAY_EQID_CNT,
9321 					 phba->cfg_fcp_imax);
9322 
9323 	return 0;
9324 
9325 out_destroy:
9326 	lpfc_sli4_queue_unset(phba);
9327 out_error:
9328 	return rc;
9329 }
9330 
9331 /**
9332  * lpfc_sli4_queue_unset - Unset all the SLI4 queues
9333  * @phba: pointer to lpfc hba data structure.
9334  *
9335  * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
9336  * operation.
9337  *
9338  * Return codes
9339  *      0 - successful
9340  *      -ENOMEM - No available memory
9341  *      -EIO - The mailbox failed to complete successfully.
9342  **/
9343 void
9344 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
9345 {
9346 	int qidx;
9347 
9348 	/* Unset the queues created for Flash Optimized Fabric operations */
9349 	if (phba->cfg_fof)
9350 		lpfc_fof_queue_destroy(phba);
9351 
9352 	/* Unset mailbox command work queue */
9353 	if (phba->sli4_hba.mbx_wq)
9354 		lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
9355 
9356 	/* Unset NVME LS work queue */
9357 	if (phba->sli4_hba.nvmels_wq)
9358 		lpfc_wq_destroy(phba, phba->sli4_hba.nvmels_wq);
9359 
9360 	/* Unset ELS work queue */
9361 	if (phba->sli4_hba.els_wq)
9362 		lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
9363 
9364 	/* Unset unsolicited receive queue */
9365 	if (phba->sli4_hba.hdr_rq)
9366 		lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq,
9367 				phba->sli4_hba.dat_rq);
9368 
9369 	/* Unset FCP work queue */
9370 	if (phba->sli4_hba.fcp_wq)
9371 		for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++)
9372 			lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[qidx]);
9373 
9374 	/* Unset NVME work queue */
9375 	if (phba->sli4_hba.nvme_wq) {
9376 		for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++)
9377 			lpfc_wq_destroy(phba, phba->sli4_hba.nvme_wq[qidx]);
9378 	}
9379 
9380 	/* Unset mailbox command complete queue */
9381 	if (phba->sli4_hba.mbx_cq)
9382 		lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
9383 
9384 	/* Unset ELS complete queue */
9385 	if (phba->sli4_hba.els_cq)
9386 		lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
9387 
9388 	/* Unset NVME LS complete queue */
9389 	if (phba->sli4_hba.nvmels_cq)
9390 		lpfc_cq_destroy(phba, phba->sli4_hba.nvmels_cq);
9391 
9392 	/* Unset NVME response complete queue */
9393 	if (phba->sli4_hba.nvme_cq)
9394 		for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++)
9395 			lpfc_cq_destroy(phba, phba->sli4_hba.nvme_cq[qidx]);
9396 
9397 	if (phba->nvmet_support) {
9398 		/* Unset NVMET MRQ queue */
9399 		if (phba->sli4_hba.nvmet_mrq_hdr) {
9400 			for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
9401 				lpfc_rq_destroy(
9402 					phba,
9403 					phba->sli4_hba.nvmet_mrq_hdr[qidx],
9404 					phba->sli4_hba.nvmet_mrq_data[qidx]);
9405 		}
9406 
9407 		/* Unset NVMET CQ Set complete queue */
9408 		if (phba->sli4_hba.nvmet_cqset) {
9409 			for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
9410 				lpfc_cq_destroy(
9411 					phba, phba->sli4_hba.nvmet_cqset[qidx]);
9412 		}
9413 	}
9414 
9415 	/* Unset FCP response complete queue */
9416 	if (phba->sli4_hba.fcp_cq)
9417 		for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++)
9418 			lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[qidx]);
9419 
9420 	/* Unset fast-path event queue */
9421 	if (phba->sli4_hba.hba_eq)
9422 		for (qidx = 0; qidx < phba->io_channel_irqs; qidx++)
9423 			lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[qidx]);
9424 }
9425 
9426 /**
9427  * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
9428  * @phba: pointer to lpfc hba data structure.
9429  *
9430  * This routine is invoked to allocate and set up a pool of completion queue
9431  * events. The body of the completion queue event is a completion queue entry
9432  * CQE. For now, this pool is used for the interrupt service routine to queue
9433  * the following HBA completion queue events for the worker thread to process:
9434  *   - Mailbox asynchronous events
9435  *   - Receive queue completion unsolicited events
9436  * Later, this can be used for all the slow-path events.
9437  *
9438  * Return codes
9439  *      0 - successful
9440  *      -ENOMEM - No available memory
9441  **/
9442 static int
9443 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
9444 {
9445 	struct lpfc_cq_event *cq_event;
9446 	int i;
9447 
9448 	for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
9449 		cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
9450 		if (!cq_event)
9451 			goto out_pool_create_fail;
9452 		list_add_tail(&cq_event->list,
9453 			      &phba->sli4_hba.sp_cqe_event_pool);
9454 	}
9455 	return 0;
9456 
9457 out_pool_create_fail:
9458 	lpfc_sli4_cq_event_pool_destroy(phba);
9459 	return -ENOMEM;
9460 }
9461 
9462 /**
9463  * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
9464  * @phba: pointer to lpfc hba data structure.
9465  *
9466  * This routine is invoked to free the pool of completion queue events at
9467  * driver unload time. Note that, it is the responsibility of the driver
9468  * cleanup routine to free all the outstanding completion-queue events
9469  * allocated from this pool back into the pool before invoking this routine
9470  * to destroy the pool.
9471  **/
9472 static void
9473 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
9474 {
9475 	struct lpfc_cq_event *cq_event, *next_cq_event;
9476 
9477 	list_for_each_entry_safe(cq_event, next_cq_event,
9478 				 &phba->sli4_hba.sp_cqe_event_pool, list) {
9479 		list_del(&cq_event->list);
9480 		kfree(cq_event);
9481 	}
9482 }
9483 
9484 /**
9485  * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
9486  * @phba: pointer to lpfc hba data structure.
9487  *
9488  * This routine is the lock free version of the API invoked to allocate a
9489  * completion-queue event from the free pool.
9490  *
9491  * Return: Pointer to the newly allocated completion-queue event if successful
9492  *         NULL otherwise.
9493  **/
9494 struct lpfc_cq_event *
9495 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
9496 {
9497 	struct lpfc_cq_event *cq_event = NULL;
9498 
9499 	list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
9500 			 struct lpfc_cq_event, list);
9501 	return cq_event;
9502 }
9503 
9504 /**
9505  * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
9506  * @phba: pointer to lpfc hba data structure.
9507  *
9508  * This routine is the lock version of the API invoked to allocate a
9509  * completion-queue event from the free pool.
9510  *
9511  * Return: Pointer to the newly allocated completion-queue event if successful
9512  *         NULL otherwise.
9513  **/
9514 struct lpfc_cq_event *
9515 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
9516 {
9517 	struct lpfc_cq_event *cq_event;
9518 	unsigned long iflags;
9519 
9520 	spin_lock_irqsave(&phba->hbalock, iflags);
9521 	cq_event = __lpfc_sli4_cq_event_alloc(phba);
9522 	spin_unlock_irqrestore(&phba->hbalock, iflags);
9523 	return cq_event;
9524 }
9525 
9526 /**
9527  * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
9528  * @phba: pointer to lpfc hba data structure.
9529  * @cq_event: pointer to the completion queue event to be freed.
9530  *
9531  * This routine is the lock free version of the API invoked to release a
9532  * completion-queue event back into the free pool.
9533  **/
9534 void
9535 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
9536 			     struct lpfc_cq_event *cq_event)
9537 {
9538 	list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
9539 }
9540 
9541 /**
9542  * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
9543  * @phba: pointer to lpfc hba data structure.
9544  * @cq_event: pointer to the completion queue event to be freed.
9545  *
9546  * This routine is the lock version of the API invoked to release a
9547  * completion-queue event back into the free pool.
9548  **/
9549 void
9550 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
9551 			   struct lpfc_cq_event *cq_event)
9552 {
9553 	unsigned long iflags;
9554 	spin_lock_irqsave(&phba->hbalock, iflags);
9555 	__lpfc_sli4_cq_event_release(phba, cq_event);
9556 	spin_unlock_irqrestore(&phba->hbalock, iflags);
9557 }
9558 
9559 /**
9560  * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
9561  * @phba: pointer to lpfc hba data structure.
9562  *
9563  * This routine is to free all the pending completion-queue events to the
9564  * back into the free pool for device reset.
9565  **/
9566 static void
9567 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
9568 {
9569 	LIST_HEAD(cqelist);
9570 	struct lpfc_cq_event *cqe;
9571 	unsigned long iflags;
9572 
9573 	/* Retrieve all the pending WCQEs from pending WCQE lists */
9574 	spin_lock_irqsave(&phba->hbalock, iflags);
9575 	/* Pending FCP XRI abort events */
9576 	list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
9577 			 &cqelist);
9578 	/* Pending ELS XRI abort events */
9579 	list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
9580 			 &cqelist);
9581 	/* Pending asynnc events */
9582 	list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
9583 			 &cqelist);
9584 	spin_unlock_irqrestore(&phba->hbalock, iflags);
9585 
9586 	while (!list_empty(&cqelist)) {
9587 		list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
9588 		lpfc_sli4_cq_event_release(phba, cqe);
9589 	}
9590 }
9591 
9592 /**
9593  * lpfc_pci_function_reset - Reset pci function.
9594  * @phba: pointer to lpfc hba data structure.
9595  *
9596  * This routine is invoked to request a PCI function reset. It will destroys
9597  * all resources assigned to the PCI function which originates this request.
9598  *
9599  * Return codes
9600  *      0 - successful
9601  *      -ENOMEM - No available memory
9602  *      -EIO - The mailbox failed to complete successfully.
9603  **/
9604 int
9605 lpfc_pci_function_reset(struct lpfc_hba *phba)
9606 {
9607 	LPFC_MBOXQ_t *mboxq;
9608 	uint32_t rc = 0, if_type;
9609 	uint32_t shdr_status, shdr_add_status;
9610 	uint32_t rdy_chk;
9611 	uint32_t port_reset = 0;
9612 	union lpfc_sli4_cfg_shdr *shdr;
9613 	struct lpfc_register reg_data;
9614 	uint16_t devid;
9615 
9616 	if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
9617 	switch (if_type) {
9618 	case LPFC_SLI_INTF_IF_TYPE_0:
9619 		mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
9620 						       GFP_KERNEL);
9621 		if (!mboxq) {
9622 			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9623 					"0494 Unable to allocate memory for "
9624 					"issuing SLI_FUNCTION_RESET mailbox "
9625 					"command\n");
9626 			return -ENOMEM;
9627 		}
9628 
9629 		/* Setup PCI function reset mailbox-ioctl command */
9630 		lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
9631 				 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
9632 				 LPFC_SLI4_MBX_EMBED);
9633 		rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9634 		shdr = (union lpfc_sli4_cfg_shdr *)
9635 			&mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
9636 		shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9637 		shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
9638 					 &shdr->response);
9639 		if (rc != MBX_TIMEOUT)
9640 			mempool_free(mboxq, phba->mbox_mem_pool);
9641 		if (shdr_status || shdr_add_status || rc) {
9642 			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9643 					"0495 SLI_FUNCTION_RESET mailbox "
9644 					"failed with status x%x add_status x%x,"
9645 					" mbx status x%x\n",
9646 					shdr_status, shdr_add_status, rc);
9647 			rc = -ENXIO;
9648 		}
9649 		break;
9650 	case LPFC_SLI_INTF_IF_TYPE_2:
9651 	case LPFC_SLI_INTF_IF_TYPE_6:
9652 wait:
9653 		/*
9654 		 * Poll the Port Status Register and wait for RDY for
9655 		 * up to 30 seconds. If the port doesn't respond, treat
9656 		 * it as an error.
9657 		 */
9658 		for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) {
9659 			if (lpfc_readl(phba->sli4_hba.u.if_type2.
9660 				STATUSregaddr, &reg_data.word0)) {
9661 				rc = -ENODEV;
9662 				goto out;
9663 			}
9664 			if (bf_get(lpfc_sliport_status_rdy, &reg_data))
9665 				break;
9666 			msleep(20);
9667 		}
9668 
9669 		if (!bf_get(lpfc_sliport_status_rdy, &reg_data)) {
9670 			phba->work_status[0] = readl(
9671 				phba->sli4_hba.u.if_type2.ERR1regaddr);
9672 			phba->work_status[1] = readl(
9673 				phba->sli4_hba.u.if_type2.ERR2regaddr);
9674 			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9675 					"2890 Port not ready, port status reg "
9676 					"0x%x error 1=0x%x, error 2=0x%x\n",
9677 					reg_data.word0,
9678 					phba->work_status[0],
9679 					phba->work_status[1]);
9680 			rc = -ENODEV;
9681 			goto out;
9682 		}
9683 
9684 		if (!port_reset) {
9685 			/*
9686 			 * Reset the port now
9687 			 */
9688 			reg_data.word0 = 0;
9689 			bf_set(lpfc_sliport_ctrl_end, &reg_data,
9690 			       LPFC_SLIPORT_LITTLE_ENDIAN);
9691 			bf_set(lpfc_sliport_ctrl_ip, &reg_data,
9692 			       LPFC_SLIPORT_INIT_PORT);
9693 			writel(reg_data.word0, phba->sli4_hba.u.if_type2.
9694 			       CTRLregaddr);
9695 			/* flush */
9696 			pci_read_config_word(phba->pcidev,
9697 					     PCI_DEVICE_ID, &devid);
9698 
9699 			port_reset = 1;
9700 			msleep(20);
9701 			goto wait;
9702 		} else if (bf_get(lpfc_sliport_status_rn, &reg_data)) {
9703 			rc = -ENODEV;
9704 			goto out;
9705 		}
9706 		break;
9707 
9708 	case LPFC_SLI_INTF_IF_TYPE_1:
9709 	default:
9710 		break;
9711 	}
9712 
9713 out:
9714 	/* Catch the not-ready port failure after a port reset. */
9715 	if (rc) {
9716 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9717 				"3317 HBA not functional: IP Reset Failed "
9718 				"try: echo fw_reset > board_mode\n");
9719 		rc = -ENODEV;
9720 	}
9721 
9722 	return rc;
9723 }
9724 
9725 /**
9726  * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
9727  * @phba: pointer to lpfc hba data structure.
9728  *
9729  * This routine is invoked to set up the PCI device memory space for device
9730  * with SLI-4 interface spec.
9731  *
9732  * Return codes
9733  * 	0 - successful
9734  * 	other values - error
9735  **/
9736 static int
9737 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
9738 {
9739 	struct pci_dev *pdev = phba->pcidev;
9740 	unsigned long bar0map_len, bar1map_len, bar2map_len;
9741 	int error = -ENODEV;
9742 	uint32_t if_type;
9743 
9744 	if (!pdev)
9745 		return error;
9746 
9747 	/* Set the device DMA mask size */
9748 	if (dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)) ||
9749 	    dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)))
9750 		return error;
9751 
9752 	/*
9753 	 * The BARs and register set definitions and offset locations are
9754 	 * dependent on the if_type.
9755 	 */
9756 	if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
9757 				  &phba->sli4_hba.sli_intf.word0)) {
9758 		return error;
9759 	}
9760 
9761 	/* There is no SLI3 failback for SLI4 devices. */
9762 	if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
9763 	    LPFC_SLI_INTF_VALID) {
9764 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9765 				"2894 SLI_INTF reg contents invalid "
9766 				"sli_intf reg 0x%x\n",
9767 				phba->sli4_hba.sli_intf.word0);
9768 		return error;
9769 	}
9770 
9771 	if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
9772 	/*
9773 	 * Get the bus address of SLI4 device Bar regions and the
9774 	 * number of bytes required by each mapping. The mapping of the
9775 	 * particular PCI BARs regions is dependent on the type of
9776 	 * SLI4 device.
9777 	 */
9778 	if (pci_resource_start(pdev, PCI_64BIT_BAR0)) {
9779 		phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0);
9780 		bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0);
9781 
9782 		/*
9783 		 * Map SLI4 PCI Config Space Register base to a kernel virtual
9784 		 * addr
9785 		 */
9786 		phba->sli4_hba.conf_regs_memmap_p =
9787 			ioremap(phba->pci_bar0_map, bar0map_len);
9788 		if (!phba->sli4_hba.conf_regs_memmap_p) {
9789 			dev_printk(KERN_ERR, &pdev->dev,
9790 				   "ioremap failed for SLI4 PCI config "
9791 				   "registers.\n");
9792 			goto out;
9793 		}
9794 		phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p;
9795 		/* Set up BAR0 PCI config space register memory map */
9796 		lpfc_sli4_bar0_register_memmap(phba, if_type);
9797 	} else {
9798 		phba->pci_bar0_map = pci_resource_start(pdev, 1);
9799 		bar0map_len = pci_resource_len(pdev, 1);
9800 		if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
9801 			dev_printk(KERN_ERR, &pdev->dev,
9802 			   "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
9803 			goto out;
9804 		}
9805 		phba->sli4_hba.conf_regs_memmap_p =
9806 				ioremap(phba->pci_bar0_map, bar0map_len);
9807 		if (!phba->sli4_hba.conf_regs_memmap_p) {
9808 			dev_printk(KERN_ERR, &pdev->dev,
9809 				"ioremap failed for SLI4 PCI config "
9810 				"registers.\n");
9811 				goto out;
9812 		}
9813 		lpfc_sli4_bar0_register_memmap(phba, if_type);
9814 	}
9815 
9816 	if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
9817 		if (pci_resource_start(pdev, PCI_64BIT_BAR2)) {
9818 			/*
9819 			 * Map SLI4 if type 0 HBA Control Register base to a
9820 			 * kernel virtual address and setup the registers.
9821 			 */
9822 			phba->pci_bar1_map = pci_resource_start(pdev,
9823 								PCI_64BIT_BAR2);
9824 			bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
9825 			phba->sli4_hba.ctrl_regs_memmap_p =
9826 					ioremap(phba->pci_bar1_map,
9827 						bar1map_len);
9828 			if (!phba->sli4_hba.ctrl_regs_memmap_p) {
9829 				dev_err(&pdev->dev,
9830 					   "ioremap failed for SLI4 HBA "
9831 					    "control registers.\n");
9832 				error = -ENOMEM;
9833 				goto out_iounmap_conf;
9834 			}
9835 			phba->pci_bar2_memmap_p =
9836 					 phba->sli4_hba.ctrl_regs_memmap_p;
9837 			lpfc_sli4_bar1_register_memmap(phba, if_type);
9838 		} else {
9839 			error = -ENOMEM;
9840 			goto out_iounmap_conf;
9841 		}
9842 	}
9843 
9844 	if ((if_type == LPFC_SLI_INTF_IF_TYPE_6) &&
9845 	    (pci_resource_start(pdev, PCI_64BIT_BAR2))) {
9846 		/*
9847 		 * Map SLI4 if type 6 HBA Doorbell Register base to a kernel
9848 		 * virtual address and setup the registers.
9849 		 */
9850 		phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2);
9851 		bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
9852 		phba->sli4_hba.drbl_regs_memmap_p =
9853 				ioremap(phba->pci_bar1_map, bar1map_len);
9854 		if (!phba->sli4_hba.drbl_regs_memmap_p) {
9855 			dev_err(&pdev->dev,
9856 			   "ioremap failed for SLI4 HBA doorbell registers.\n");
9857 			goto out_iounmap_conf;
9858 		}
9859 		phba->pci_bar2_memmap_p = phba->sli4_hba.drbl_regs_memmap_p;
9860 		lpfc_sli4_bar1_register_memmap(phba, if_type);
9861 	}
9862 
9863 	if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
9864 		if (pci_resource_start(pdev, PCI_64BIT_BAR4)) {
9865 			/*
9866 			 * Map SLI4 if type 0 HBA Doorbell Register base to
9867 			 * a kernel virtual address and setup the registers.
9868 			 */
9869 			phba->pci_bar2_map = pci_resource_start(pdev,
9870 								PCI_64BIT_BAR4);
9871 			bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
9872 			phba->sli4_hba.drbl_regs_memmap_p =
9873 					ioremap(phba->pci_bar2_map,
9874 						bar2map_len);
9875 			if (!phba->sli4_hba.drbl_regs_memmap_p) {
9876 				dev_err(&pdev->dev,
9877 					   "ioremap failed for SLI4 HBA"
9878 					   " doorbell registers.\n");
9879 				error = -ENOMEM;
9880 				goto out_iounmap_ctrl;
9881 			}
9882 			phba->pci_bar4_memmap_p =
9883 					phba->sli4_hba.drbl_regs_memmap_p;
9884 			error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
9885 			if (error)
9886 				goto out_iounmap_all;
9887 		} else {
9888 			error = -ENOMEM;
9889 			goto out_iounmap_all;
9890 		}
9891 	}
9892 
9893 	if (if_type == LPFC_SLI_INTF_IF_TYPE_6 &&
9894 	    pci_resource_start(pdev, PCI_64BIT_BAR4)) {
9895 		/*
9896 		 * Map SLI4 if type 6 HBA DPP Register base to a kernel
9897 		 * virtual address and setup the registers.
9898 		 */
9899 		phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4);
9900 		bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
9901 		phba->sli4_hba.dpp_regs_memmap_p =
9902 				ioremap(phba->pci_bar2_map, bar2map_len);
9903 		if (!phba->sli4_hba.dpp_regs_memmap_p) {
9904 			dev_err(&pdev->dev,
9905 			   "ioremap failed for SLI4 HBA dpp registers.\n");
9906 			goto out_iounmap_ctrl;
9907 		}
9908 		phba->pci_bar4_memmap_p = phba->sli4_hba.dpp_regs_memmap_p;
9909 	}
9910 
9911 	/* Set up the EQ/CQ register handeling functions now */
9912 	switch (if_type) {
9913 	case LPFC_SLI_INTF_IF_TYPE_0:
9914 	case LPFC_SLI_INTF_IF_TYPE_2:
9915 		phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_eq_clr_intr;
9916 		phba->sli4_hba.sli4_eq_release = lpfc_sli4_eq_release;
9917 		phba->sli4_hba.sli4_cq_release = lpfc_sli4_cq_release;
9918 		break;
9919 	case LPFC_SLI_INTF_IF_TYPE_6:
9920 		phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_if6_eq_clr_intr;
9921 		phba->sli4_hba.sli4_eq_release = lpfc_sli4_if6_eq_release;
9922 		phba->sli4_hba.sli4_cq_release = lpfc_sli4_if6_cq_release;
9923 		break;
9924 	default:
9925 		break;
9926 	}
9927 
9928 	return 0;
9929 
9930 out_iounmap_all:
9931 	iounmap(phba->sli4_hba.drbl_regs_memmap_p);
9932 out_iounmap_ctrl:
9933 	iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
9934 out_iounmap_conf:
9935 	iounmap(phba->sli4_hba.conf_regs_memmap_p);
9936 out:
9937 	return error;
9938 }
9939 
9940 /**
9941  * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
9942  * @phba: pointer to lpfc hba data structure.
9943  *
9944  * This routine is invoked to unset the PCI device memory space for device
9945  * with SLI-4 interface spec.
9946  **/
9947 static void
9948 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
9949 {
9950 	uint32_t if_type;
9951 	if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
9952 
9953 	switch (if_type) {
9954 	case LPFC_SLI_INTF_IF_TYPE_0:
9955 		iounmap(phba->sli4_hba.drbl_regs_memmap_p);
9956 		iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
9957 		iounmap(phba->sli4_hba.conf_regs_memmap_p);
9958 		break;
9959 	case LPFC_SLI_INTF_IF_TYPE_2:
9960 		iounmap(phba->sli4_hba.conf_regs_memmap_p);
9961 		break;
9962 	case LPFC_SLI_INTF_IF_TYPE_6:
9963 		iounmap(phba->sli4_hba.drbl_regs_memmap_p);
9964 		iounmap(phba->sli4_hba.conf_regs_memmap_p);
9965 		break;
9966 	case LPFC_SLI_INTF_IF_TYPE_1:
9967 	default:
9968 		dev_printk(KERN_ERR, &phba->pcidev->dev,
9969 			   "FATAL - unsupported SLI4 interface type - %d\n",
9970 			   if_type);
9971 		break;
9972 	}
9973 }
9974 
9975 /**
9976  * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
9977  * @phba: pointer to lpfc hba data structure.
9978  *
9979  * This routine is invoked to enable the MSI-X interrupt vectors to device
9980  * with SLI-3 interface specs.
9981  *
9982  * Return codes
9983  *   0 - successful
9984  *   other values - error
9985  **/
9986 static int
9987 lpfc_sli_enable_msix(struct lpfc_hba *phba)
9988 {
9989 	int rc;
9990 	LPFC_MBOXQ_t *pmb;
9991 
9992 	/* Set up MSI-X multi-message vectors */
9993 	rc = pci_alloc_irq_vectors(phba->pcidev,
9994 			LPFC_MSIX_VECTORS, LPFC_MSIX_VECTORS, PCI_IRQ_MSIX);
9995 	if (rc < 0) {
9996 		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9997 				"0420 PCI enable MSI-X failed (%d)\n", rc);
9998 		goto vec_fail_out;
9999 	}
10000 
10001 	/*
10002 	 * Assign MSI-X vectors to interrupt handlers
10003 	 */
10004 
10005 	/* vector-0 is associated to slow-path handler */
10006 	rc = request_irq(pci_irq_vector(phba->pcidev, 0),
10007 			 &lpfc_sli_sp_intr_handler, 0,
10008 			 LPFC_SP_DRIVER_HANDLER_NAME, phba);
10009 	if (rc) {
10010 		lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10011 				"0421 MSI-X slow-path request_irq failed "
10012 				"(%d)\n", rc);
10013 		goto msi_fail_out;
10014 	}
10015 
10016 	/* vector-1 is associated to fast-path handler */
10017 	rc = request_irq(pci_irq_vector(phba->pcidev, 1),
10018 			 &lpfc_sli_fp_intr_handler, 0,
10019 			 LPFC_FP_DRIVER_HANDLER_NAME, phba);
10020 
10021 	if (rc) {
10022 		lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10023 				"0429 MSI-X fast-path request_irq failed "
10024 				"(%d)\n", rc);
10025 		goto irq_fail_out;
10026 	}
10027 
10028 	/*
10029 	 * Configure HBA MSI-X attention conditions to messages
10030 	 */
10031 	pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10032 
10033 	if (!pmb) {
10034 		rc = -ENOMEM;
10035 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10036 				"0474 Unable to allocate memory for issuing "
10037 				"MBOX_CONFIG_MSI command\n");
10038 		goto mem_fail_out;
10039 	}
10040 	rc = lpfc_config_msi(phba, pmb);
10041 	if (rc)
10042 		goto mbx_fail_out;
10043 	rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
10044 	if (rc != MBX_SUCCESS) {
10045 		lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
10046 				"0351 Config MSI mailbox command failed, "
10047 				"mbxCmd x%x, mbxStatus x%x\n",
10048 				pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
10049 		goto mbx_fail_out;
10050 	}
10051 
10052 	/* Free memory allocated for mailbox command */
10053 	mempool_free(pmb, phba->mbox_mem_pool);
10054 	return rc;
10055 
10056 mbx_fail_out:
10057 	/* Free memory allocated for mailbox command */
10058 	mempool_free(pmb, phba->mbox_mem_pool);
10059 
10060 mem_fail_out:
10061 	/* free the irq already requested */
10062 	free_irq(pci_irq_vector(phba->pcidev, 1), phba);
10063 
10064 irq_fail_out:
10065 	/* free the irq already requested */
10066 	free_irq(pci_irq_vector(phba->pcidev, 0), phba);
10067 
10068 msi_fail_out:
10069 	/* Unconfigure MSI-X capability structure */
10070 	pci_free_irq_vectors(phba->pcidev);
10071 
10072 vec_fail_out:
10073 	return rc;
10074 }
10075 
10076 /**
10077  * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
10078  * @phba: pointer to lpfc hba data structure.
10079  *
10080  * This routine is invoked to enable the MSI interrupt mode to device with
10081  * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
10082  * enable the MSI vector. The device driver is responsible for calling the
10083  * request_irq() to register MSI vector with a interrupt the handler, which
10084  * is done in this function.
10085  *
10086  * Return codes
10087  * 	0 - successful
10088  * 	other values - error
10089  */
10090 static int
10091 lpfc_sli_enable_msi(struct lpfc_hba *phba)
10092 {
10093 	int rc;
10094 
10095 	rc = pci_enable_msi(phba->pcidev);
10096 	if (!rc)
10097 		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10098 				"0462 PCI enable MSI mode success.\n");
10099 	else {
10100 		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10101 				"0471 PCI enable MSI mode failed (%d)\n", rc);
10102 		return rc;
10103 	}
10104 
10105 	rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
10106 			 0, LPFC_DRIVER_NAME, phba);
10107 	if (rc) {
10108 		pci_disable_msi(phba->pcidev);
10109 		lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10110 				"0478 MSI request_irq failed (%d)\n", rc);
10111 	}
10112 	return rc;
10113 }
10114 
10115 /**
10116  * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
10117  * @phba: pointer to lpfc hba data structure.
10118  *
10119  * This routine is invoked to enable device interrupt and associate driver's
10120  * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
10121  * spec. Depends on the interrupt mode configured to the driver, the driver
10122  * will try to fallback from the configured interrupt mode to an interrupt
10123  * mode which is supported by the platform, kernel, and device in the order
10124  * of:
10125  * MSI-X -> MSI -> IRQ.
10126  *
10127  * Return codes
10128  *   0 - successful
10129  *   other values - error
10130  **/
10131 static uint32_t
10132 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
10133 {
10134 	uint32_t intr_mode = LPFC_INTR_ERROR;
10135 	int retval;
10136 
10137 	if (cfg_mode == 2) {
10138 		/* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
10139 		retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
10140 		if (!retval) {
10141 			/* Now, try to enable MSI-X interrupt mode */
10142 			retval = lpfc_sli_enable_msix(phba);
10143 			if (!retval) {
10144 				/* Indicate initialization to MSI-X mode */
10145 				phba->intr_type = MSIX;
10146 				intr_mode = 2;
10147 			}
10148 		}
10149 	}
10150 
10151 	/* Fallback to MSI if MSI-X initialization failed */
10152 	if (cfg_mode >= 1 && phba->intr_type == NONE) {
10153 		retval = lpfc_sli_enable_msi(phba);
10154 		if (!retval) {
10155 			/* Indicate initialization to MSI mode */
10156 			phba->intr_type = MSI;
10157 			intr_mode = 1;
10158 		}
10159 	}
10160 
10161 	/* Fallback to INTx if both MSI-X/MSI initalization failed */
10162 	if (phba->intr_type == NONE) {
10163 		retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
10164 				     IRQF_SHARED, LPFC_DRIVER_NAME, phba);
10165 		if (!retval) {
10166 			/* Indicate initialization to INTx mode */
10167 			phba->intr_type = INTx;
10168 			intr_mode = 0;
10169 		}
10170 	}
10171 	return intr_mode;
10172 }
10173 
10174 /**
10175  * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
10176  * @phba: pointer to lpfc hba data structure.
10177  *
10178  * This routine is invoked to disable device interrupt and disassociate the
10179  * driver's interrupt handler(s) from interrupt vector(s) to device with
10180  * SLI-3 interface spec. Depending on the interrupt mode, the driver will
10181  * release the interrupt vector(s) for the message signaled interrupt.
10182  **/
10183 static void
10184 lpfc_sli_disable_intr(struct lpfc_hba *phba)
10185 {
10186 	int nr_irqs, i;
10187 
10188 	if (phba->intr_type == MSIX)
10189 		nr_irqs = LPFC_MSIX_VECTORS;
10190 	else
10191 		nr_irqs = 1;
10192 
10193 	for (i = 0; i < nr_irqs; i++)
10194 		free_irq(pci_irq_vector(phba->pcidev, i), phba);
10195 	pci_free_irq_vectors(phba->pcidev);
10196 
10197 	/* Reset interrupt management states */
10198 	phba->intr_type = NONE;
10199 	phba->sli.slistat.sli_intr = 0;
10200 }
10201 
10202 /**
10203  * lpfc_cpu_affinity_check - Check vector CPU affinity mappings
10204  * @phba: pointer to lpfc hba data structure.
10205  * @vectors: number of msix vectors allocated.
10206  *
10207  * The routine will figure out the CPU affinity assignment for every
10208  * MSI-X vector allocated for the HBA.  The hba_eq_hdl will be updated
10209  * with a pointer to the CPU mask that defines ALL the CPUs this vector
10210  * can be associated with. If the vector can be unquely associated with
10211  * a single CPU, that CPU will be recorded in hba_eq_hdl[index].cpu.
10212  * In addition, the CPU to IO channel mapping will be calculated
10213  * and the phba->sli4_hba.cpu_map array will reflect this.
10214  */
10215 static void
10216 lpfc_cpu_affinity_check(struct lpfc_hba *phba, int vectors)
10217 {
10218 	struct lpfc_vector_map_info *cpup;
10219 	int index = 0;
10220 	int vec = 0;
10221 	int cpu;
10222 #ifdef CONFIG_X86
10223 	struct cpuinfo_x86 *cpuinfo;
10224 #endif
10225 
10226 	/* Init cpu_map array */
10227 	memset(phba->sli4_hba.cpu_map, 0xff,
10228 	       (sizeof(struct lpfc_vector_map_info) *
10229 	       phba->sli4_hba.num_present_cpu));
10230 
10231 	/* Update CPU map with physical id and core id of each CPU */
10232 	cpup = phba->sli4_hba.cpu_map;
10233 	for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
10234 #ifdef CONFIG_X86
10235 		cpuinfo = &cpu_data(cpu);
10236 		cpup->phys_id = cpuinfo->phys_proc_id;
10237 		cpup->core_id = cpuinfo->cpu_core_id;
10238 #else
10239 		/* No distinction between CPUs for other platforms */
10240 		cpup->phys_id = 0;
10241 		cpup->core_id = 0;
10242 #endif
10243 		cpup->channel_id = index;  /* For now round robin */
10244 		cpup->irq = pci_irq_vector(phba->pcidev, vec);
10245 		vec++;
10246 		if (vec >= vectors)
10247 			vec = 0;
10248 		index++;
10249 		if (index >= phba->cfg_fcp_io_channel)
10250 			index = 0;
10251 		cpup++;
10252 	}
10253 }
10254 
10255 
10256 /**
10257  * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
10258  * @phba: pointer to lpfc hba data structure.
10259  *
10260  * This routine is invoked to enable the MSI-X interrupt vectors to device
10261  * with SLI-4 interface spec.
10262  *
10263  * Return codes
10264  * 0 - successful
10265  * other values - error
10266  **/
10267 static int
10268 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
10269 {
10270 	int vectors, rc, index;
10271 	char *name;
10272 
10273 	/* Set up MSI-X multi-message vectors */
10274 	vectors = phba->io_channel_irqs;
10275 	if (phba->cfg_fof)
10276 		vectors++;
10277 
10278 	rc = pci_alloc_irq_vectors(phba->pcidev,
10279 				(phba->nvmet_support) ? 1 : 2,
10280 				vectors, PCI_IRQ_MSIX | PCI_IRQ_AFFINITY);
10281 	if (rc < 0) {
10282 		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10283 				"0484 PCI enable MSI-X failed (%d)\n", rc);
10284 		goto vec_fail_out;
10285 	}
10286 	vectors = rc;
10287 
10288 	/* Assign MSI-X vectors to interrupt handlers */
10289 	for (index = 0; index < vectors; index++) {
10290 		name = phba->sli4_hba.hba_eq_hdl[index].handler_name;
10291 		memset(name, 0, LPFC_SLI4_HANDLER_NAME_SZ);
10292 		snprintf(name, LPFC_SLI4_HANDLER_NAME_SZ,
10293 			 LPFC_DRIVER_HANDLER_NAME"%d", index);
10294 
10295 		phba->sli4_hba.hba_eq_hdl[index].idx = index;
10296 		phba->sli4_hba.hba_eq_hdl[index].phba = phba;
10297 		atomic_set(&phba->sli4_hba.hba_eq_hdl[index].hba_eq_in_use, 1);
10298 		if (phba->cfg_fof && (index == (vectors - 1)))
10299 			rc = request_irq(pci_irq_vector(phba->pcidev, index),
10300 				 &lpfc_sli4_fof_intr_handler, 0,
10301 				 name,
10302 				 &phba->sli4_hba.hba_eq_hdl[index]);
10303 		else
10304 			rc = request_irq(pci_irq_vector(phba->pcidev, index),
10305 				 &lpfc_sli4_hba_intr_handler, 0,
10306 				 name,
10307 				 &phba->sli4_hba.hba_eq_hdl[index]);
10308 		if (rc) {
10309 			lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10310 					"0486 MSI-X fast-path (%d) "
10311 					"request_irq failed (%d)\n", index, rc);
10312 			goto cfg_fail_out;
10313 		}
10314 	}
10315 
10316 	if (phba->cfg_fof)
10317 		vectors--;
10318 
10319 	if (vectors != phba->io_channel_irqs) {
10320 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10321 				"3238 Reducing IO channels to match number of "
10322 				"MSI-X vectors, requested %d got %d\n",
10323 				phba->io_channel_irqs, vectors);
10324 		if (phba->cfg_fcp_io_channel > vectors)
10325 			phba->cfg_fcp_io_channel = vectors;
10326 		if (phba->cfg_nvme_io_channel > vectors)
10327 			phba->cfg_nvme_io_channel = vectors;
10328 		if (phba->cfg_fcp_io_channel > phba->cfg_nvme_io_channel)
10329 			phba->io_channel_irqs = phba->cfg_fcp_io_channel;
10330 		else
10331 			phba->io_channel_irqs = phba->cfg_nvme_io_channel;
10332 	}
10333 	lpfc_cpu_affinity_check(phba, vectors);
10334 
10335 	return rc;
10336 
10337 cfg_fail_out:
10338 	/* free the irq already requested */
10339 	for (--index; index >= 0; index--)
10340 		free_irq(pci_irq_vector(phba->pcidev, index),
10341 				&phba->sli4_hba.hba_eq_hdl[index]);
10342 
10343 	/* Unconfigure MSI-X capability structure */
10344 	pci_free_irq_vectors(phba->pcidev);
10345 
10346 vec_fail_out:
10347 	return rc;
10348 }
10349 
10350 /**
10351  * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
10352  * @phba: pointer to lpfc hba data structure.
10353  *
10354  * This routine is invoked to enable the MSI interrupt mode to device with
10355  * SLI-4 interface spec. The kernel function pci_enable_msi() is called
10356  * to enable the MSI vector. The device driver is responsible for calling
10357  * the request_irq() to register MSI vector with a interrupt the handler,
10358  * which is done in this function.
10359  *
10360  * Return codes
10361  * 	0 - successful
10362  * 	other values - error
10363  **/
10364 static int
10365 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
10366 {
10367 	int rc, index;
10368 
10369 	rc = pci_enable_msi(phba->pcidev);
10370 	if (!rc)
10371 		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10372 				"0487 PCI enable MSI mode success.\n");
10373 	else {
10374 		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10375 				"0488 PCI enable MSI mode failed (%d)\n", rc);
10376 		return rc;
10377 	}
10378 
10379 	rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
10380 			 0, LPFC_DRIVER_NAME, phba);
10381 	if (rc) {
10382 		pci_disable_msi(phba->pcidev);
10383 		lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10384 				"0490 MSI request_irq failed (%d)\n", rc);
10385 		return rc;
10386 	}
10387 
10388 	for (index = 0; index < phba->io_channel_irqs; index++) {
10389 		phba->sli4_hba.hba_eq_hdl[index].idx = index;
10390 		phba->sli4_hba.hba_eq_hdl[index].phba = phba;
10391 	}
10392 
10393 	if (phba->cfg_fof) {
10394 		phba->sli4_hba.hba_eq_hdl[index].idx = index;
10395 		phba->sli4_hba.hba_eq_hdl[index].phba = phba;
10396 	}
10397 	return 0;
10398 }
10399 
10400 /**
10401  * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
10402  * @phba: pointer to lpfc hba data structure.
10403  *
10404  * This routine is invoked to enable device interrupt and associate driver's
10405  * interrupt handler(s) to interrupt vector(s) to device with SLI-4
10406  * interface spec. Depends on the interrupt mode configured to the driver,
10407  * the driver will try to fallback from the configured interrupt mode to an
10408  * interrupt mode which is supported by the platform, kernel, and device in
10409  * the order of:
10410  * MSI-X -> MSI -> IRQ.
10411  *
10412  * Return codes
10413  * 	0 - successful
10414  * 	other values - error
10415  **/
10416 static uint32_t
10417 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
10418 {
10419 	uint32_t intr_mode = LPFC_INTR_ERROR;
10420 	int retval, idx;
10421 
10422 	if (cfg_mode == 2) {
10423 		/* Preparation before conf_msi mbox cmd */
10424 		retval = 0;
10425 		if (!retval) {
10426 			/* Now, try to enable MSI-X interrupt mode */
10427 			retval = lpfc_sli4_enable_msix(phba);
10428 			if (!retval) {
10429 				/* Indicate initialization to MSI-X mode */
10430 				phba->intr_type = MSIX;
10431 				intr_mode = 2;
10432 			}
10433 		}
10434 	}
10435 
10436 	/* Fallback to MSI if MSI-X initialization failed */
10437 	if (cfg_mode >= 1 && phba->intr_type == NONE) {
10438 		retval = lpfc_sli4_enable_msi(phba);
10439 		if (!retval) {
10440 			/* Indicate initialization to MSI mode */
10441 			phba->intr_type = MSI;
10442 			intr_mode = 1;
10443 		}
10444 	}
10445 
10446 	/* Fallback to INTx if both MSI-X/MSI initalization failed */
10447 	if (phba->intr_type == NONE) {
10448 		retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
10449 				     IRQF_SHARED, LPFC_DRIVER_NAME, phba);
10450 		if (!retval) {
10451 			struct lpfc_hba_eq_hdl *eqhdl;
10452 
10453 			/* Indicate initialization to INTx mode */
10454 			phba->intr_type = INTx;
10455 			intr_mode = 0;
10456 
10457 			for (idx = 0; idx < phba->io_channel_irqs; idx++) {
10458 				eqhdl = &phba->sli4_hba.hba_eq_hdl[idx];
10459 				eqhdl->idx = idx;
10460 				eqhdl->phba = phba;
10461 				atomic_set(&eqhdl->hba_eq_in_use, 1);
10462 			}
10463 			if (phba->cfg_fof) {
10464 				eqhdl = &phba->sli4_hba.hba_eq_hdl[idx];
10465 				eqhdl->idx = idx;
10466 				eqhdl->phba = phba;
10467 				atomic_set(&eqhdl->hba_eq_in_use, 1);
10468 			}
10469 		}
10470 	}
10471 	return intr_mode;
10472 }
10473 
10474 /**
10475  * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
10476  * @phba: pointer to lpfc hba data structure.
10477  *
10478  * This routine is invoked to disable device interrupt and disassociate
10479  * the driver's interrupt handler(s) from interrupt vector(s) to device
10480  * with SLI-4 interface spec. Depending on the interrupt mode, the driver
10481  * will release the interrupt vector(s) for the message signaled interrupt.
10482  **/
10483 static void
10484 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
10485 {
10486 	/* Disable the currently initialized interrupt mode */
10487 	if (phba->intr_type == MSIX) {
10488 		int index;
10489 
10490 		/* Free up MSI-X multi-message vectors */
10491 		for (index = 0; index < phba->io_channel_irqs; index++)
10492 			free_irq(pci_irq_vector(phba->pcidev, index),
10493 					&phba->sli4_hba.hba_eq_hdl[index]);
10494 
10495 		if (phba->cfg_fof)
10496 			free_irq(pci_irq_vector(phba->pcidev, index),
10497 					&phba->sli4_hba.hba_eq_hdl[index]);
10498 	} else {
10499 		free_irq(phba->pcidev->irq, phba);
10500 	}
10501 
10502 	pci_free_irq_vectors(phba->pcidev);
10503 
10504 	/* Reset interrupt management states */
10505 	phba->intr_type = NONE;
10506 	phba->sli.slistat.sli_intr = 0;
10507 }
10508 
10509 /**
10510  * lpfc_unset_hba - Unset SLI3 hba device initialization
10511  * @phba: pointer to lpfc hba data structure.
10512  *
10513  * This routine is invoked to unset the HBA device initialization steps to
10514  * a device with SLI-3 interface spec.
10515  **/
10516 static void
10517 lpfc_unset_hba(struct lpfc_hba *phba)
10518 {
10519 	struct lpfc_vport *vport = phba->pport;
10520 	struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
10521 
10522 	spin_lock_irq(shost->host_lock);
10523 	vport->load_flag |= FC_UNLOADING;
10524 	spin_unlock_irq(shost->host_lock);
10525 
10526 	kfree(phba->vpi_bmask);
10527 	kfree(phba->vpi_ids);
10528 
10529 	lpfc_stop_hba_timers(phba);
10530 
10531 	phba->pport->work_port_events = 0;
10532 
10533 	lpfc_sli_hba_down(phba);
10534 
10535 	lpfc_sli_brdrestart(phba);
10536 
10537 	lpfc_sli_disable_intr(phba);
10538 
10539 	return;
10540 }
10541 
10542 /**
10543  * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
10544  * @phba: Pointer to HBA context object.
10545  *
10546  * This function is called in the SLI4 code path to wait for completion
10547  * of device's XRIs exchange busy. It will check the XRI exchange busy
10548  * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
10549  * that, it will check the XRI exchange busy on outstanding FCP and ELS
10550  * I/Os every 30 seconds, log error message, and wait forever. Only when
10551  * all XRI exchange busy complete, the driver unload shall proceed with
10552  * invoking the function reset ioctl mailbox command to the CNA and the
10553  * the rest of the driver unload resource release.
10554  **/
10555 static void
10556 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
10557 {
10558 	int wait_time = 0;
10559 	int nvme_xri_cmpl = 1;
10560 	int nvmet_xri_cmpl = 1;
10561 	int fcp_xri_cmpl = 1;
10562 	int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
10563 
10564 	/* Driver just aborted IOs during the hba_unset process.  Pause
10565 	 * here to give the HBA time to complete the IO and get entries
10566 	 * into the abts lists.
10567 	 */
10568 	msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1 * 5);
10569 
10570 	/* Wait for NVME pending IO to flush back to transport. */
10571 	if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
10572 		lpfc_nvme_wait_for_io_drain(phba);
10573 
10574 	if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)
10575 		fcp_xri_cmpl =
10576 			list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
10577 	if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
10578 		nvme_xri_cmpl =
10579 			list_empty(&phba->sli4_hba.lpfc_abts_nvme_buf_list);
10580 		nvmet_xri_cmpl =
10581 			list_empty(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
10582 	}
10583 
10584 	while (!fcp_xri_cmpl || !els_xri_cmpl || !nvme_xri_cmpl ||
10585 	       !nvmet_xri_cmpl) {
10586 		if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
10587 			if (!nvmet_xri_cmpl)
10588 				lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10589 						"6424 NVMET XRI exchange busy "
10590 						"wait time: %d seconds.\n",
10591 						wait_time/1000);
10592 			if (!nvme_xri_cmpl)
10593 				lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10594 						"6100 NVME XRI exchange busy "
10595 						"wait time: %d seconds.\n",
10596 						wait_time/1000);
10597 			if (!fcp_xri_cmpl)
10598 				lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10599 						"2877 FCP XRI exchange busy "
10600 						"wait time: %d seconds.\n",
10601 						wait_time/1000);
10602 			if (!els_xri_cmpl)
10603 				lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10604 						"2878 ELS XRI exchange busy "
10605 						"wait time: %d seconds.\n",
10606 						wait_time/1000);
10607 			msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
10608 			wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
10609 		} else {
10610 			msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
10611 			wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
10612 		}
10613 		if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
10614 			nvme_xri_cmpl = list_empty(
10615 				&phba->sli4_hba.lpfc_abts_nvme_buf_list);
10616 			nvmet_xri_cmpl = list_empty(
10617 				&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
10618 		}
10619 
10620 		if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)
10621 			fcp_xri_cmpl = list_empty(
10622 				&phba->sli4_hba.lpfc_abts_scsi_buf_list);
10623 
10624 		els_xri_cmpl =
10625 			list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
10626 
10627 	}
10628 }
10629 
10630 /**
10631  * lpfc_sli4_hba_unset - Unset the fcoe hba
10632  * @phba: Pointer to HBA context object.
10633  *
10634  * This function is called in the SLI4 code path to reset the HBA's FCoE
10635  * function. The caller is not required to hold any lock. This routine
10636  * issues PCI function reset mailbox command to reset the FCoE function.
10637  * At the end of the function, it calls lpfc_hba_down_post function to
10638  * free any pending commands.
10639  **/
10640 static void
10641 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
10642 {
10643 	int wait_cnt = 0;
10644 	LPFC_MBOXQ_t *mboxq;
10645 	struct pci_dev *pdev = phba->pcidev;
10646 
10647 	lpfc_stop_hba_timers(phba);
10648 	phba->sli4_hba.intr_enable = 0;
10649 
10650 	/*
10651 	 * Gracefully wait out the potential current outstanding asynchronous
10652 	 * mailbox command.
10653 	 */
10654 
10655 	/* First, block any pending async mailbox command from posted */
10656 	spin_lock_irq(&phba->hbalock);
10657 	phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
10658 	spin_unlock_irq(&phba->hbalock);
10659 	/* Now, trying to wait it out if we can */
10660 	while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
10661 		msleep(10);
10662 		if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
10663 			break;
10664 	}
10665 	/* Forcefully release the outstanding mailbox command if timed out */
10666 	if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
10667 		spin_lock_irq(&phba->hbalock);
10668 		mboxq = phba->sli.mbox_active;
10669 		mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
10670 		__lpfc_mbox_cmpl_put(phba, mboxq);
10671 		phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
10672 		phba->sli.mbox_active = NULL;
10673 		spin_unlock_irq(&phba->hbalock);
10674 	}
10675 
10676 	/* Abort all iocbs associated with the hba */
10677 	lpfc_sli_hba_iocb_abort(phba);
10678 
10679 	/* Wait for completion of device XRI exchange busy */
10680 	lpfc_sli4_xri_exchange_busy_wait(phba);
10681 
10682 	/* Disable PCI subsystem interrupt */
10683 	lpfc_sli4_disable_intr(phba);
10684 
10685 	/* Disable SR-IOV if enabled */
10686 	if (phba->cfg_sriov_nr_virtfn)
10687 		pci_disable_sriov(pdev);
10688 
10689 	/* Stop kthread signal shall trigger work_done one more time */
10690 	kthread_stop(phba->worker_thread);
10691 
10692 	/* Disable FW logging to host memory */
10693 	lpfc_ras_stop_fwlog(phba);
10694 
10695 	/* Unset the queues shared with the hardware then release all
10696 	 * allocated resources.
10697 	 */
10698 	lpfc_sli4_queue_unset(phba);
10699 	lpfc_sli4_queue_destroy(phba);
10700 
10701 	/* Reset SLI4 HBA FCoE function */
10702 	lpfc_pci_function_reset(phba);
10703 
10704 	/* Free RAS DMA memory */
10705 	if (phba->ras_fwlog.ras_enabled)
10706 		lpfc_sli4_ras_dma_free(phba);
10707 
10708 	/* Stop the SLI4 device port */
10709 	phba->pport->work_port_events = 0;
10710 }
10711 
10712  /**
10713  * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
10714  * @phba: Pointer to HBA context object.
10715  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
10716  *
10717  * This function is called in the SLI4 code path to read the port's
10718  * sli4 capabilities.
10719  *
10720  * This function may be be called from any context that can block-wait
10721  * for the completion.  The expectation is that this routine is called
10722  * typically from probe_one or from the online routine.
10723  **/
10724 int
10725 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
10726 {
10727 	int rc;
10728 	struct lpfc_mqe *mqe;
10729 	struct lpfc_pc_sli4_params *sli4_params;
10730 	uint32_t mbox_tmo;
10731 
10732 	rc = 0;
10733 	mqe = &mboxq->u.mqe;
10734 
10735 	/* Read the port's SLI4 Parameters port capabilities */
10736 	lpfc_pc_sli4_params(mboxq);
10737 	if (!phba->sli4_hba.intr_enable)
10738 		rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
10739 	else {
10740 		mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
10741 		rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
10742 	}
10743 
10744 	if (unlikely(rc))
10745 		return 1;
10746 
10747 	sli4_params = &phba->sli4_hba.pc_sli4_params;
10748 	sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
10749 	sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
10750 	sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
10751 	sli4_params->featurelevel_1 = bf_get(featurelevel_1,
10752 					     &mqe->un.sli4_params);
10753 	sli4_params->featurelevel_2 = bf_get(featurelevel_2,
10754 					     &mqe->un.sli4_params);
10755 	sli4_params->proto_types = mqe->un.sli4_params.word3;
10756 	sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
10757 	sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
10758 	sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
10759 	sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
10760 	sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
10761 	sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
10762 	sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
10763 	sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
10764 	sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
10765 	sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
10766 	sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
10767 	sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
10768 	sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
10769 	sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
10770 	sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
10771 	sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
10772 	sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
10773 	sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
10774 	sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
10775 	sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
10776 
10777 	/* Make sure that sge_supp_len can be handled by the driver */
10778 	if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
10779 		sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
10780 
10781 	return rc;
10782 }
10783 
10784 /**
10785  * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
10786  * @phba: Pointer to HBA context object.
10787  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
10788  *
10789  * This function is called in the SLI4 code path to read the port's
10790  * sli4 capabilities.
10791  *
10792  * This function may be be called from any context that can block-wait
10793  * for the completion.  The expectation is that this routine is called
10794  * typically from probe_one or from the online routine.
10795  **/
10796 int
10797 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
10798 {
10799 	int rc;
10800 	struct lpfc_mqe *mqe = &mboxq->u.mqe;
10801 	struct lpfc_pc_sli4_params *sli4_params;
10802 	uint32_t mbox_tmo;
10803 	int length;
10804 	bool exp_wqcq_pages = true;
10805 	struct lpfc_sli4_parameters *mbx_sli4_parameters;
10806 
10807 	/*
10808 	 * By default, the driver assumes the SLI4 port requires RPI
10809 	 * header postings.  The SLI4_PARAM response will correct this
10810 	 * assumption.
10811 	 */
10812 	phba->sli4_hba.rpi_hdrs_in_use = 1;
10813 
10814 	/* Read the port's SLI4 Config Parameters */
10815 	length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
10816 		  sizeof(struct lpfc_sli4_cfg_mhdr));
10817 	lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
10818 			 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
10819 			 length, LPFC_SLI4_MBX_EMBED);
10820 	if (!phba->sli4_hba.intr_enable)
10821 		rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
10822 	else {
10823 		mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
10824 		rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
10825 	}
10826 	if (unlikely(rc))
10827 		return rc;
10828 	sli4_params = &phba->sli4_hba.pc_sli4_params;
10829 	mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
10830 	sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
10831 	sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
10832 	sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
10833 	sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
10834 					     mbx_sli4_parameters);
10835 	sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
10836 					     mbx_sli4_parameters);
10837 	if (bf_get(cfg_phwq, mbx_sli4_parameters))
10838 		phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
10839 	else
10840 		phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
10841 	sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
10842 	sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
10843 	sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters);
10844 	sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
10845 	sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
10846 	sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
10847 	sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
10848 	sli4_params->eqav = bf_get(cfg_eqav, mbx_sli4_parameters);
10849 	sli4_params->cqav = bf_get(cfg_cqav, mbx_sli4_parameters);
10850 	sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters);
10851 	sli4_params->bv1s = bf_get(cfg_bv1s, mbx_sli4_parameters);
10852 	sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
10853 					    mbx_sli4_parameters);
10854 	sli4_params->wqpcnt = bf_get(cfg_wqpcnt, mbx_sli4_parameters);
10855 	sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
10856 					   mbx_sli4_parameters);
10857 	phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
10858 	phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
10859 	phba->nvme_support = (bf_get(cfg_nvme, mbx_sli4_parameters) &&
10860 			      bf_get(cfg_xib, mbx_sli4_parameters));
10861 
10862 	if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP) ||
10863 	    !phba->nvme_support) {
10864 		phba->nvme_support = 0;
10865 		phba->nvmet_support = 0;
10866 		phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_OFF;
10867 		phba->cfg_nvme_io_channel = 0;
10868 		phba->io_channel_irqs = phba->cfg_fcp_io_channel;
10869 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_NVME,
10870 				"6101 Disabling NVME support: "
10871 				"Not supported by firmware: %d %d\n",
10872 				bf_get(cfg_nvme, mbx_sli4_parameters),
10873 				bf_get(cfg_xib, mbx_sli4_parameters));
10874 
10875 		/* If firmware doesn't support NVME, just use SCSI support */
10876 		if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
10877 			return -ENODEV;
10878 		phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP;
10879 	}
10880 
10881 	/* Only embed PBDE for if_type 6, PBDE support requires xib be set */
10882 	if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
10883 	    LPFC_SLI_INTF_IF_TYPE_6) || (!bf_get(cfg_xib, mbx_sli4_parameters)))
10884 		phba->cfg_enable_pbde = 0;
10885 
10886 	/*
10887 	 * To support Suppress Response feature we must satisfy 3 conditions.
10888 	 * lpfc_suppress_rsp module parameter must be set (default).
10889 	 * In SLI4-Parameters Descriptor:
10890 	 * Extended Inline Buffers (XIB) must be supported.
10891 	 * Suppress Response IU Not Supported (SRIUNS) must NOT be supported
10892 	 * (double negative).
10893 	 */
10894 	if (phba->cfg_suppress_rsp && bf_get(cfg_xib, mbx_sli4_parameters) &&
10895 	    !(bf_get(cfg_nosr, mbx_sli4_parameters)))
10896 		phba->sli.sli_flag |= LPFC_SLI_SUPPRESS_RSP;
10897 	else
10898 		phba->cfg_suppress_rsp = 0;
10899 
10900 	if (bf_get(cfg_eqdr, mbx_sli4_parameters))
10901 		phba->sli.sli_flag |= LPFC_SLI_USE_EQDR;
10902 
10903 	/* Make sure that sge_supp_len can be handled by the driver */
10904 	if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
10905 		sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
10906 
10907 	/*
10908 	 * Check whether the adapter supports an embedded copy of the
10909 	 * FCP CMD IU within the WQE for FCP_Ixxx commands. In order
10910 	 * to use this option, 128-byte WQEs must be used.
10911 	 */
10912 	if (bf_get(cfg_ext_embed_cb, mbx_sli4_parameters))
10913 		phba->fcp_embed_io = 1;
10914 	else
10915 		phba->fcp_embed_io = 0;
10916 
10917 	lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME,
10918 			"6422 XIB %d PBDE %d: FCP %d NVME %d %d %d\n",
10919 			bf_get(cfg_xib, mbx_sli4_parameters),
10920 			phba->cfg_enable_pbde,
10921 			phba->fcp_embed_io, phba->nvme_support,
10922 			phba->cfg_nvme_embed_cmd, phba->cfg_suppress_rsp);
10923 
10924 	if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
10925 	    LPFC_SLI_INTF_IF_TYPE_2) &&
10926 	    (bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf) ==
10927 		 LPFC_SLI_INTF_FAMILY_LNCR_A0))
10928 		exp_wqcq_pages = false;
10929 
10930 	if ((bf_get(cfg_cqpsize, mbx_sli4_parameters) & LPFC_CQ_16K_PAGE_SZ) &&
10931 	    (bf_get(cfg_wqpsize, mbx_sli4_parameters) & LPFC_WQ_16K_PAGE_SZ) &&
10932 	    exp_wqcq_pages &&
10933 	    (sli4_params->wqsize & LPFC_WQ_SZ128_SUPPORT))
10934 		phba->enab_exp_wqcq_pages = 1;
10935 	else
10936 		phba->enab_exp_wqcq_pages = 0;
10937 	/*
10938 	 * Check if the SLI port supports MDS Diagnostics
10939 	 */
10940 	if (bf_get(cfg_mds_diags, mbx_sli4_parameters))
10941 		phba->mds_diags_support = 1;
10942 	else
10943 		phba->mds_diags_support = 0;
10944 
10945 	return 0;
10946 }
10947 
10948 /**
10949  * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
10950  * @pdev: pointer to PCI device
10951  * @pid: pointer to PCI device identifier
10952  *
10953  * This routine is to be called to attach a device with SLI-3 interface spec
10954  * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
10955  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
10956  * information of the device and driver to see if the driver state that it can
10957  * support this kind of device. If the match is successful, the driver core
10958  * invokes this routine. If this routine determines it can claim the HBA, it
10959  * does all the initialization that it needs to do to handle the HBA properly.
10960  *
10961  * Return code
10962  * 	0 - driver can claim the device
10963  * 	negative value - driver can not claim the device
10964  **/
10965 static int
10966 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
10967 {
10968 	struct lpfc_hba   *phba;
10969 	struct lpfc_vport *vport = NULL;
10970 	struct Scsi_Host  *shost = NULL;
10971 	int error;
10972 	uint32_t cfg_mode, intr_mode;
10973 
10974 	/* Allocate memory for HBA structure */
10975 	phba = lpfc_hba_alloc(pdev);
10976 	if (!phba)
10977 		return -ENOMEM;
10978 
10979 	/* Perform generic PCI device enabling operation */
10980 	error = lpfc_enable_pci_dev(phba);
10981 	if (error)
10982 		goto out_free_phba;
10983 
10984 	/* Set up SLI API function jump table for PCI-device group-0 HBAs */
10985 	error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
10986 	if (error)
10987 		goto out_disable_pci_dev;
10988 
10989 	/* Set up SLI-3 specific device PCI memory space */
10990 	error = lpfc_sli_pci_mem_setup(phba);
10991 	if (error) {
10992 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10993 				"1402 Failed to set up pci memory space.\n");
10994 		goto out_disable_pci_dev;
10995 	}
10996 
10997 	/* Set up SLI-3 specific device driver resources */
10998 	error = lpfc_sli_driver_resource_setup(phba);
10999 	if (error) {
11000 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11001 				"1404 Failed to set up driver resource.\n");
11002 		goto out_unset_pci_mem_s3;
11003 	}
11004 
11005 	/* Initialize and populate the iocb list per host */
11006 
11007 	error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
11008 	if (error) {
11009 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11010 				"1405 Failed to initialize iocb list.\n");
11011 		goto out_unset_driver_resource_s3;
11012 	}
11013 
11014 	/* Set up common device driver resources */
11015 	error = lpfc_setup_driver_resource_phase2(phba);
11016 	if (error) {
11017 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11018 				"1406 Failed to set up driver resource.\n");
11019 		goto out_free_iocb_list;
11020 	}
11021 
11022 	/* Get the default values for Model Name and Description */
11023 	lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
11024 
11025 	/* Create SCSI host to the physical port */
11026 	error = lpfc_create_shost(phba);
11027 	if (error) {
11028 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11029 				"1407 Failed to create scsi host.\n");
11030 		goto out_unset_driver_resource;
11031 	}
11032 
11033 	/* Configure sysfs attributes */
11034 	vport = phba->pport;
11035 	error = lpfc_alloc_sysfs_attr(vport);
11036 	if (error) {
11037 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11038 				"1476 Failed to allocate sysfs attr\n");
11039 		goto out_destroy_shost;
11040 	}
11041 
11042 	shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
11043 	/* Now, trying to enable interrupt and bring up the device */
11044 	cfg_mode = phba->cfg_use_msi;
11045 	while (true) {
11046 		/* Put device to a known state before enabling interrupt */
11047 		lpfc_stop_port(phba);
11048 		/* Configure and enable interrupt */
11049 		intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
11050 		if (intr_mode == LPFC_INTR_ERROR) {
11051 			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11052 					"0431 Failed to enable interrupt.\n");
11053 			error = -ENODEV;
11054 			goto out_free_sysfs_attr;
11055 		}
11056 		/* SLI-3 HBA setup */
11057 		if (lpfc_sli_hba_setup(phba)) {
11058 			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11059 					"1477 Failed to set up hba\n");
11060 			error = -ENODEV;
11061 			goto out_remove_device;
11062 		}
11063 
11064 		/* Wait 50ms for the interrupts of previous mailbox commands */
11065 		msleep(50);
11066 		/* Check active interrupts on message signaled interrupts */
11067 		if (intr_mode == 0 ||
11068 		    phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
11069 			/* Log the current active interrupt mode */
11070 			phba->intr_mode = intr_mode;
11071 			lpfc_log_intr_mode(phba, intr_mode);
11072 			break;
11073 		} else {
11074 			lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11075 					"0447 Configure interrupt mode (%d) "
11076 					"failed active interrupt test.\n",
11077 					intr_mode);
11078 			/* Disable the current interrupt mode */
11079 			lpfc_sli_disable_intr(phba);
11080 			/* Try next level of interrupt mode */
11081 			cfg_mode = --intr_mode;
11082 		}
11083 	}
11084 
11085 	/* Perform post initialization setup */
11086 	lpfc_post_init_setup(phba);
11087 
11088 	/* Check if there are static vports to be created. */
11089 	lpfc_create_static_vport(phba);
11090 
11091 	return 0;
11092 
11093 out_remove_device:
11094 	lpfc_unset_hba(phba);
11095 out_free_sysfs_attr:
11096 	lpfc_free_sysfs_attr(vport);
11097 out_destroy_shost:
11098 	lpfc_destroy_shost(phba);
11099 out_unset_driver_resource:
11100 	lpfc_unset_driver_resource_phase2(phba);
11101 out_free_iocb_list:
11102 	lpfc_free_iocb_list(phba);
11103 out_unset_driver_resource_s3:
11104 	lpfc_sli_driver_resource_unset(phba);
11105 out_unset_pci_mem_s3:
11106 	lpfc_sli_pci_mem_unset(phba);
11107 out_disable_pci_dev:
11108 	lpfc_disable_pci_dev(phba);
11109 	if (shost)
11110 		scsi_host_put(shost);
11111 out_free_phba:
11112 	lpfc_hba_free(phba);
11113 	return error;
11114 }
11115 
11116 /**
11117  * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
11118  * @pdev: pointer to PCI device
11119  *
11120  * This routine is to be called to disattach a device with SLI-3 interface
11121  * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
11122  * removed from PCI bus, it performs all the necessary cleanup for the HBA
11123  * device to be removed from the PCI subsystem properly.
11124  **/
11125 static void
11126 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
11127 {
11128 	struct Scsi_Host  *shost = pci_get_drvdata(pdev);
11129 	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
11130 	struct lpfc_vport **vports;
11131 	struct lpfc_hba   *phba = vport->phba;
11132 	int i;
11133 
11134 	spin_lock_irq(&phba->hbalock);
11135 	vport->load_flag |= FC_UNLOADING;
11136 	spin_unlock_irq(&phba->hbalock);
11137 
11138 	lpfc_free_sysfs_attr(vport);
11139 
11140 	/* Release all the vports against this physical port */
11141 	vports = lpfc_create_vport_work_array(phba);
11142 	if (vports != NULL)
11143 		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
11144 			if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
11145 				continue;
11146 			fc_vport_terminate(vports[i]->fc_vport);
11147 		}
11148 	lpfc_destroy_vport_work_array(phba, vports);
11149 
11150 	/* Remove FC host and then SCSI host with the physical port */
11151 	fc_remove_host(shost);
11152 	scsi_remove_host(shost);
11153 
11154 	lpfc_cleanup(vport);
11155 
11156 	/*
11157 	 * Bring down the SLI Layer. This step disable all interrupts,
11158 	 * clears the rings, discards all mailbox commands, and resets
11159 	 * the HBA.
11160 	 */
11161 
11162 	/* HBA interrupt will be disabled after this call */
11163 	lpfc_sli_hba_down(phba);
11164 	/* Stop kthread signal shall trigger work_done one more time */
11165 	kthread_stop(phba->worker_thread);
11166 	/* Final cleanup of txcmplq and reset the HBA */
11167 	lpfc_sli_brdrestart(phba);
11168 
11169 	kfree(phba->vpi_bmask);
11170 	kfree(phba->vpi_ids);
11171 
11172 	lpfc_stop_hba_timers(phba);
11173 	spin_lock_irq(&phba->port_list_lock);
11174 	list_del_init(&vport->listentry);
11175 	spin_unlock_irq(&phba->port_list_lock);
11176 
11177 	lpfc_debugfs_terminate(vport);
11178 
11179 	/* Disable SR-IOV if enabled */
11180 	if (phba->cfg_sriov_nr_virtfn)
11181 		pci_disable_sriov(pdev);
11182 
11183 	/* Disable interrupt */
11184 	lpfc_sli_disable_intr(phba);
11185 
11186 	scsi_host_put(shost);
11187 
11188 	/*
11189 	 * Call scsi_free before mem_free since scsi bufs are released to their
11190 	 * corresponding pools here.
11191 	 */
11192 	lpfc_scsi_free(phba);
11193 	lpfc_mem_free_all(phba);
11194 
11195 	dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
11196 			  phba->hbqslimp.virt, phba->hbqslimp.phys);
11197 
11198 	/* Free resources associated with SLI2 interface */
11199 	dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
11200 			  phba->slim2p.virt, phba->slim2p.phys);
11201 
11202 	/* unmap adapter SLIM and Control Registers */
11203 	iounmap(phba->ctrl_regs_memmap_p);
11204 	iounmap(phba->slim_memmap_p);
11205 
11206 	lpfc_hba_free(phba);
11207 
11208 	pci_release_mem_regions(pdev);
11209 	pci_disable_device(pdev);
11210 }
11211 
11212 /**
11213  * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
11214  * @pdev: pointer to PCI device
11215  * @msg: power management message
11216  *
11217  * This routine is to be called from the kernel's PCI subsystem to support
11218  * system Power Management (PM) to device with SLI-3 interface spec. When
11219  * PM invokes this method, it quiesces the device by stopping the driver's
11220  * worker thread for the device, turning off device's interrupt and DMA,
11221  * and bring the device offline. Note that as the driver implements the
11222  * minimum PM requirements to a power-aware driver's PM support for the
11223  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
11224  * to the suspend() method call will be treated as SUSPEND and the driver will
11225  * fully reinitialize its device during resume() method call, the driver will
11226  * set device to PCI_D3hot state in PCI config space instead of setting it
11227  * according to the @msg provided by the PM.
11228  *
11229  * Return code
11230  * 	0 - driver suspended the device
11231  * 	Error otherwise
11232  **/
11233 static int
11234 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
11235 {
11236 	struct Scsi_Host *shost = pci_get_drvdata(pdev);
11237 	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11238 
11239 	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11240 			"0473 PCI device Power Management suspend.\n");
11241 
11242 	/* Bring down the device */
11243 	lpfc_offline_prep(phba, LPFC_MBX_WAIT);
11244 	lpfc_offline(phba);
11245 	kthread_stop(phba->worker_thread);
11246 
11247 	/* Disable interrupt from device */
11248 	lpfc_sli_disable_intr(phba);
11249 
11250 	/* Save device state to PCI config space */
11251 	pci_save_state(pdev);
11252 	pci_set_power_state(pdev, PCI_D3hot);
11253 
11254 	return 0;
11255 }
11256 
11257 /**
11258  * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
11259  * @pdev: pointer to PCI device
11260  *
11261  * This routine is to be called from the kernel's PCI subsystem to support
11262  * system Power Management (PM) to device with SLI-3 interface spec. When PM
11263  * invokes this method, it restores the device's PCI config space state and
11264  * fully reinitializes the device and brings it online. Note that as the
11265  * driver implements the minimum PM requirements to a power-aware driver's
11266  * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
11267  * FREEZE) to the suspend() method call will be treated as SUSPEND and the
11268  * driver will fully reinitialize its device during resume() method call,
11269  * the device will be set to PCI_D0 directly in PCI config space before
11270  * restoring the state.
11271  *
11272  * Return code
11273  * 	0 - driver suspended the device
11274  * 	Error otherwise
11275  **/
11276 static int
11277 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
11278 {
11279 	struct Scsi_Host *shost = pci_get_drvdata(pdev);
11280 	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11281 	uint32_t intr_mode;
11282 	int error;
11283 
11284 	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11285 			"0452 PCI device Power Management resume.\n");
11286 
11287 	/* Restore device state from PCI config space */
11288 	pci_set_power_state(pdev, PCI_D0);
11289 	pci_restore_state(pdev);
11290 
11291 	/*
11292 	 * As the new kernel behavior of pci_restore_state() API call clears
11293 	 * device saved_state flag, need to save the restored state again.
11294 	 */
11295 	pci_save_state(pdev);
11296 
11297 	if (pdev->is_busmaster)
11298 		pci_set_master(pdev);
11299 
11300 	/* Startup the kernel thread for this host adapter. */
11301 	phba->worker_thread = kthread_run(lpfc_do_work, phba,
11302 					"lpfc_worker_%d", phba->brd_no);
11303 	if (IS_ERR(phba->worker_thread)) {
11304 		error = PTR_ERR(phba->worker_thread);
11305 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11306 				"0434 PM resume failed to start worker "
11307 				"thread: error=x%x.\n", error);
11308 		return error;
11309 	}
11310 
11311 	/* Configure and enable interrupt */
11312 	intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
11313 	if (intr_mode == LPFC_INTR_ERROR) {
11314 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11315 				"0430 PM resume Failed to enable interrupt\n");
11316 		return -EIO;
11317 	} else
11318 		phba->intr_mode = intr_mode;
11319 
11320 	/* Restart HBA and bring it online */
11321 	lpfc_sli_brdrestart(phba);
11322 	lpfc_online(phba);
11323 
11324 	/* Log the current active interrupt mode */
11325 	lpfc_log_intr_mode(phba, phba->intr_mode);
11326 
11327 	return 0;
11328 }
11329 
11330 /**
11331  * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
11332  * @phba: pointer to lpfc hba data structure.
11333  *
11334  * This routine is called to prepare the SLI3 device for PCI slot recover. It
11335  * aborts all the outstanding SCSI I/Os to the pci device.
11336  **/
11337 static void
11338 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
11339 {
11340 	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11341 			"2723 PCI channel I/O abort preparing for recovery\n");
11342 
11343 	/*
11344 	 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
11345 	 * and let the SCSI mid-layer to retry them to recover.
11346 	 */
11347 	lpfc_sli_abort_fcp_rings(phba);
11348 }
11349 
11350 /**
11351  * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
11352  * @phba: pointer to lpfc hba data structure.
11353  *
11354  * This routine is called to prepare the SLI3 device for PCI slot reset. It
11355  * disables the device interrupt and pci device, and aborts the internal FCP
11356  * pending I/Os.
11357  **/
11358 static void
11359 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
11360 {
11361 	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11362 			"2710 PCI channel disable preparing for reset\n");
11363 
11364 	/* Block any management I/Os to the device */
11365 	lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
11366 
11367 	/* Block all SCSI devices' I/Os on the host */
11368 	lpfc_scsi_dev_block(phba);
11369 
11370 	/* Flush all driver's outstanding SCSI I/Os as we are to reset */
11371 	lpfc_sli_flush_fcp_rings(phba);
11372 
11373 	/* stop all timers */
11374 	lpfc_stop_hba_timers(phba);
11375 
11376 	/* Disable interrupt and pci device */
11377 	lpfc_sli_disable_intr(phba);
11378 	pci_disable_device(phba->pcidev);
11379 }
11380 
11381 /**
11382  * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
11383  * @phba: pointer to lpfc hba data structure.
11384  *
11385  * This routine is called to prepare the SLI3 device for PCI slot permanently
11386  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
11387  * pending I/Os.
11388  **/
11389 static void
11390 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
11391 {
11392 	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11393 			"2711 PCI channel permanent disable for failure\n");
11394 	/* Block all SCSI devices' I/Os on the host */
11395 	lpfc_scsi_dev_block(phba);
11396 
11397 	/* stop all timers */
11398 	lpfc_stop_hba_timers(phba);
11399 
11400 	/* Clean up all driver's outstanding SCSI I/Os */
11401 	lpfc_sli_flush_fcp_rings(phba);
11402 }
11403 
11404 /**
11405  * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
11406  * @pdev: pointer to PCI device.
11407  * @state: the current PCI connection state.
11408  *
11409  * This routine is called from the PCI subsystem for I/O error handling to
11410  * device with SLI-3 interface spec. This function is called by the PCI
11411  * subsystem after a PCI bus error affecting this device has been detected.
11412  * When this function is invoked, it will need to stop all the I/Os and
11413  * interrupt(s) to the device. Once that is done, it will return
11414  * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
11415  * as desired.
11416  *
11417  * Return codes
11418  * 	PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
11419  * 	PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
11420  * 	PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11421  **/
11422 static pci_ers_result_t
11423 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
11424 {
11425 	struct Scsi_Host *shost = pci_get_drvdata(pdev);
11426 	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11427 
11428 	switch (state) {
11429 	case pci_channel_io_normal:
11430 		/* Non-fatal error, prepare for recovery */
11431 		lpfc_sli_prep_dev_for_recover(phba);
11432 		return PCI_ERS_RESULT_CAN_RECOVER;
11433 	case pci_channel_io_frozen:
11434 		/* Fatal error, prepare for slot reset */
11435 		lpfc_sli_prep_dev_for_reset(phba);
11436 		return PCI_ERS_RESULT_NEED_RESET;
11437 	case pci_channel_io_perm_failure:
11438 		/* Permanent failure, prepare for device down */
11439 		lpfc_sli_prep_dev_for_perm_failure(phba);
11440 		return PCI_ERS_RESULT_DISCONNECT;
11441 	default:
11442 		/* Unknown state, prepare and request slot reset */
11443 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11444 				"0472 Unknown PCI error state: x%x\n", state);
11445 		lpfc_sli_prep_dev_for_reset(phba);
11446 		return PCI_ERS_RESULT_NEED_RESET;
11447 	}
11448 }
11449 
11450 /**
11451  * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
11452  * @pdev: pointer to PCI device.
11453  *
11454  * This routine is called from the PCI subsystem for error handling to
11455  * device with SLI-3 interface spec. This is called after PCI bus has been
11456  * reset to restart the PCI card from scratch, as if from a cold-boot.
11457  * During the PCI subsystem error recovery, after driver returns
11458  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
11459  * recovery and then call this routine before calling the .resume method
11460  * to recover the device. This function will initialize the HBA device,
11461  * enable the interrupt, but it will just put the HBA to offline state
11462  * without passing any I/O traffic.
11463  *
11464  * Return codes
11465  * 	PCI_ERS_RESULT_RECOVERED - the device has been recovered
11466  * 	PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11467  */
11468 static pci_ers_result_t
11469 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
11470 {
11471 	struct Scsi_Host *shost = pci_get_drvdata(pdev);
11472 	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11473 	struct lpfc_sli *psli = &phba->sli;
11474 	uint32_t intr_mode;
11475 
11476 	dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
11477 	if (pci_enable_device_mem(pdev)) {
11478 		printk(KERN_ERR "lpfc: Cannot re-enable "
11479 			"PCI device after reset.\n");
11480 		return PCI_ERS_RESULT_DISCONNECT;
11481 	}
11482 
11483 	pci_restore_state(pdev);
11484 
11485 	/*
11486 	 * As the new kernel behavior of pci_restore_state() API call clears
11487 	 * device saved_state flag, need to save the restored state again.
11488 	 */
11489 	pci_save_state(pdev);
11490 
11491 	if (pdev->is_busmaster)
11492 		pci_set_master(pdev);
11493 
11494 	spin_lock_irq(&phba->hbalock);
11495 	psli->sli_flag &= ~LPFC_SLI_ACTIVE;
11496 	spin_unlock_irq(&phba->hbalock);
11497 
11498 	/* Configure and enable interrupt */
11499 	intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
11500 	if (intr_mode == LPFC_INTR_ERROR) {
11501 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11502 				"0427 Cannot re-enable interrupt after "
11503 				"slot reset.\n");
11504 		return PCI_ERS_RESULT_DISCONNECT;
11505 	} else
11506 		phba->intr_mode = intr_mode;
11507 
11508 	/* Take device offline, it will perform cleanup */
11509 	lpfc_offline_prep(phba, LPFC_MBX_WAIT);
11510 	lpfc_offline(phba);
11511 	lpfc_sli_brdrestart(phba);
11512 
11513 	/* Log the current active interrupt mode */
11514 	lpfc_log_intr_mode(phba, phba->intr_mode);
11515 
11516 	return PCI_ERS_RESULT_RECOVERED;
11517 }
11518 
11519 /**
11520  * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
11521  * @pdev: pointer to PCI device
11522  *
11523  * This routine is called from the PCI subsystem for error handling to device
11524  * with SLI-3 interface spec. It is called when kernel error recovery tells
11525  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
11526  * error recovery. After this call, traffic can start to flow from this device
11527  * again.
11528  */
11529 static void
11530 lpfc_io_resume_s3(struct pci_dev *pdev)
11531 {
11532 	struct Scsi_Host *shost = pci_get_drvdata(pdev);
11533 	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11534 
11535 	/* Bring device online, it will be no-op for non-fatal error resume */
11536 	lpfc_online(phba);
11537 }
11538 
11539 /**
11540  * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
11541  * @phba: pointer to lpfc hba data structure.
11542  *
11543  * returns the number of ELS/CT IOCBs to reserve
11544  **/
11545 int
11546 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
11547 {
11548 	int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
11549 
11550 	if (phba->sli_rev == LPFC_SLI_REV4) {
11551 		if (max_xri <= 100)
11552 			return 10;
11553 		else if (max_xri <= 256)
11554 			return 25;
11555 		else if (max_xri <= 512)
11556 			return 50;
11557 		else if (max_xri <= 1024)
11558 			return 100;
11559 		else if (max_xri <= 1536)
11560 			return 150;
11561 		else if (max_xri <= 2048)
11562 			return 200;
11563 		else
11564 			return 250;
11565 	} else
11566 		return 0;
11567 }
11568 
11569 /**
11570  * lpfc_sli4_get_iocb_cnt - Calculate the # of total IOCBs to reserve
11571  * @phba: pointer to lpfc hba data structure.
11572  *
11573  * returns the number of ELS/CT + NVMET IOCBs to reserve
11574  **/
11575 int
11576 lpfc_sli4_get_iocb_cnt(struct lpfc_hba *phba)
11577 {
11578 	int max_xri = lpfc_sli4_get_els_iocb_cnt(phba);
11579 
11580 	if (phba->nvmet_support)
11581 		max_xri += LPFC_NVMET_BUF_POST;
11582 	return max_xri;
11583 }
11584 
11585 
11586 static void
11587 lpfc_log_write_firmware_error(struct lpfc_hba *phba, uint32_t offset,
11588 	uint32_t magic_number, uint32_t ftype, uint32_t fid, uint32_t fsize,
11589 	const struct firmware *fw)
11590 {
11591 	if ((offset == ADD_STATUS_FW_NOT_SUPPORTED) ||
11592 	    (phba->pcidev->device == PCI_DEVICE_ID_LANCER_G6_FC &&
11593 	     magic_number != MAGIC_NUMER_G6) ||
11594 	    (phba->pcidev->device == PCI_DEVICE_ID_LANCER_G7_FC &&
11595 	     magic_number != MAGIC_NUMER_G7))
11596 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11597 			"3030 This firmware version is not supported on "
11598 			"this HBA model. Device:%x Magic:%x Type:%x "
11599 			"ID:%x Size %d %zd\n",
11600 			phba->pcidev->device, magic_number, ftype, fid,
11601 			fsize, fw->size);
11602 	else
11603 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11604 			"3022 FW Download failed. Device:%x Magic:%x Type:%x "
11605 			"ID:%x Size %d %zd\n",
11606 			phba->pcidev->device, magic_number, ftype, fid,
11607 			fsize, fw->size);
11608 }
11609 
11610 
11611 /**
11612  * lpfc_write_firmware - attempt to write a firmware image to the port
11613  * @fw: pointer to firmware image returned from request_firmware.
11614  * @phba: pointer to lpfc hba data structure.
11615  *
11616  **/
11617 static void
11618 lpfc_write_firmware(const struct firmware *fw, void *context)
11619 {
11620 	struct lpfc_hba *phba = (struct lpfc_hba *)context;
11621 	char fwrev[FW_REV_STR_SIZE];
11622 	struct lpfc_grp_hdr *image;
11623 	struct list_head dma_buffer_list;
11624 	int i, rc = 0;
11625 	struct lpfc_dmabuf *dmabuf, *next;
11626 	uint32_t offset = 0, temp_offset = 0;
11627 	uint32_t magic_number, ftype, fid, fsize;
11628 
11629 	/* It can be null in no-wait mode, sanity check */
11630 	if (!fw) {
11631 		rc = -ENXIO;
11632 		goto out;
11633 	}
11634 	image = (struct lpfc_grp_hdr *)fw->data;
11635 
11636 	magic_number = be32_to_cpu(image->magic_number);
11637 	ftype = bf_get_be32(lpfc_grp_hdr_file_type, image);
11638 	fid = bf_get_be32(lpfc_grp_hdr_id, image);
11639 	fsize = be32_to_cpu(image->size);
11640 
11641 	INIT_LIST_HEAD(&dma_buffer_list);
11642 	lpfc_decode_firmware_rev(phba, fwrev, 1);
11643 	if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
11644 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11645 				"3023 Updating Firmware, Current Version:%s "
11646 				"New Version:%s\n",
11647 				fwrev, image->revision);
11648 		for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
11649 			dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
11650 					 GFP_KERNEL);
11651 			if (!dmabuf) {
11652 				rc = -ENOMEM;
11653 				goto release_out;
11654 			}
11655 			dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
11656 							  SLI4_PAGE_SIZE,
11657 							  &dmabuf->phys,
11658 							  GFP_KERNEL);
11659 			if (!dmabuf->virt) {
11660 				kfree(dmabuf);
11661 				rc = -ENOMEM;
11662 				goto release_out;
11663 			}
11664 			list_add_tail(&dmabuf->list, &dma_buffer_list);
11665 		}
11666 		while (offset < fw->size) {
11667 			temp_offset = offset;
11668 			list_for_each_entry(dmabuf, &dma_buffer_list, list) {
11669 				if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
11670 					memcpy(dmabuf->virt,
11671 					       fw->data + temp_offset,
11672 					       fw->size - temp_offset);
11673 					temp_offset = fw->size;
11674 					break;
11675 				}
11676 				memcpy(dmabuf->virt, fw->data + temp_offset,
11677 				       SLI4_PAGE_SIZE);
11678 				temp_offset += SLI4_PAGE_SIZE;
11679 			}
11680 			rc = lpfc_wr_object(phba, &dma_buffer_list,
11681 				    (fw->size - offset), &offset);
11682 			if (rc) {
11683 				lpfc_log_write_firmware_error(phba, offset,
11684 					magic_number, ftype, fid, fsize, fw);
11685 				goto release_out;
11686 			}
11687 		}
11688 		rc = offset;
11689 	} else
11690 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11691 				"3029 Skipped Firmware update, Current "
11692 				"Version:%s New Version:%s\n",
11693 				fwrev, image->revision);
11694 
11695 release_out:
11696 	list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
11697 		list_del(&dmabuf->list);
11698 		dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
11699 				  dmabuf->virt, dmabuf->phys);
11700 		kfree(dmabuf);
11701 	}
11702 	release_firmware(fw);
11703 out:
11704 	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11705 			"3024 Firmware update done: %d.\n", rc);
11706 	return;
11707 }
11708 
11709 /**
11710  * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
11711  * @phba: pointer to lpfc hba data structure.
11712  *
11713  * This routine is called to perform Linux generic firmware upgrade on device
11714  * that supports such feature.
11715  **/
11716 int
11717 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
11718 {
11719 	uint8_t file_name[ELX_MODEL_NAME_SIZE];
11720 	int ret;
11721 	const struct firmware *fw;
11722 
11723 	/* Only supported on SLI4 interface type 2 for now */
11724 	if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
11725 	    LPFC_SLI_INTF_IF_TYPE_2)
11726 		return -EPERM;
11727 
11728 	snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName);
11729 
11730 	if (fw_upgrade == INT_FW_UPGRADE) {
11731 		ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
11732 					file_name, &phba->pcidev->dev,
11733 					GFP_KERNEL, (void *)phba,
11734 					lpfc_write_firmware);
11735 	} else if (fw_upgrade == RUN_FW_UPGRADE) {
11736 		ret = request_firmware(&fw, file_name, &phba->pcidev->dev);
11737 		if (!ret)
11738 			lpfc_write_firmware(fw, (void *)phba);
11739 	} else {
11740 		ret = -EINVAL;
11741 	}
11742 
11743 	return ret;
11744 }
11745 
11746 /**
11747  * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
11748  * @pdev: pointer to PCI device
11749  * @pid: pointer to PCI device identifier
11750  *
11751  * This routine is called from the kernel's PCI subsystem to device with
11752  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
11753  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
11754  * information of the device and driver to see if the driver state that it
11755  * can support this kind of device. If the match is successful, the driver
11756  * core invokes this routine. If this routine determines it can claim the HBA,
11757  * it does all the initialization that it needs to do to handle the HBA
11758  * properly.
11759  *
11760  * Return code
11761  * 	0 - driver can claim the device
11762  * 	negative value - driver can not claim the device
11763  **/
11764 static int
11765 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
11766 {
11767 	struct lpfc_hba   *phba;
11768 	struct lpfc_vport *vport = NULL;
11769 	struct Scsi_Host  *shost = NULL;
11770 	int error;
11771 	uint32_t cfg_mode, intr_mode;
11772 
11773 	/* Allocate memory for HBA structure */
11774 	phba = lpfc_hba_alloc(pdev);
11775 	if (!phba)
11776 		return -ENOMEM;
11777 
11778 	/* Perform generic PCI device enabling operation */
11779 	error = lpfc_enable_pci_dev(phba);
11780 	if (error)
11781 		goto out_free_phba;
11782 
11783 	/* Set up SLI API function jump table for PCI-device group-1 HBAs */
11784 	error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
11785 	if (error)
11786 		goto out_disable_pci_dev;
11787 
11788 	/* Set up SLI-4 specific device PCI memory space */
11789 	error = lpfc_sli4_pci_mem_setup(phba);
11790 	if (error) {
11791 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11792 				"1410 Failed to set up pci memory space.\n");
11793 		goto out_disable_pci_dev;
11794 	}
11795 
11796 	/* Set up SLI-4 Specific device driver resources */
11797 	error = lpfc_sli4_driver_resource_setup(phba);
11798 	if (error) {
11799 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11800 				"1412 Failed to set up driver resource.\n");
11801 		goto out_unset_pci_mem_s4;
11802 	}
11803 
11804 	INIT_LIST_HEAD(&phba->active_rrq_list);
11805 	INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
11806 
11807 	/* Set up common device driver resources */
11808 	error = lpfc_setup_driver_resource_phase2(phba);
11809 	if (error) {
11810 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11811 				"1414 Failed to set up driver resource.\n");
11812 		goto out_unset_driver_resource_s4;
11813 	}
11814 
11815 	/* Get the default values for Model Name and Description */
11816 	lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
11817 
11818 	/* Create SCSI host to the physical port */
11819 	error = lpfc_create_shost(phba);
11820 	if (error) {
11821 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11822 				"1415 Failed to create scsi host.\n");
11823 		goto out_unset_driver_resource;
11824 	}
11825 
11826 	/* Configure sysfs attributes */
11827 	vport = phba->pport;
11828 	error = lpfc_alloc_sysfs_attr(vport);
11829 	if (error) {
11830 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11831 				"1416 Failed to allocate sysfs attr\n");
11832 		goto out_destroy_shost;
11833 	}
11834 
11835 	shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
11836 	/* Now, trying to enable interrupt and bring up the device */
11837 	cfg_mode = phba->cfg_use_msi;
11838 
11839 	/* Put device to a known state before enabling interrupt */
11840 	lpfc_stop_port(phba);
11841 
11842 	/* Configure and enable interrupt */
11843 	intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
11844 	if (intr_mode == LPFC_INTR_ERROR) {
11845 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11846 				"0426 Failed to enable interrupt.\n");
11847 		error = -ENODEV;
11848 		goto out_free_sysfs_attr;
11849 	}
11850 	/* Default to single EQ for non-MSI-X */
11851 	if (phba->intr_type != MSIX) {
11852 		if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)
11853 			phba->cfg_fcp_io_channel = 1;
11854 		if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
11855 			phba->cfg_nvme_io_channel = 1;
11856 			if (phba->nvmet_support)
11857 				phba->cfg_nvmet_mrq = 1;
11858 		}
11859 		phba->io_channel_irqs = 1;
11860 	}
11861 
11862 	/* Set up SLI-4 HBA */
11863 	if (lpfc_sli4_hba_setup(phba)) {
11864 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11865 				"1421 Failed to set up hba\n");
11866 		error = -ENODEV;
11867 		goto out_disable_intr;
11868 	}
11869 
11870 	/* Log the current active interrupt mode */
11871 	phba->intr_mode = intr_mode;
11872 	lpfc_log_intr_mode(phba, intr_mode);
11873 
11874 	/* Perform post initialization setup */
11875 	lpfc_post_init_setup(phba);
11876 
11877 	/* NVME support in FW earlier in the driver load corrects the
11878 	 * FC4 type making a check for nvme_support unnecessary.
11879 	 */
11880 	if ((phba->nvmet_support == 0) &&
11881 	    (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) {
11882 		/* Create NVME binding with nvme_fc_transport. This
11883 		 * ensures the vport is initialized.  If the localport
11884 		 * create fails, it should not unload the driver to
11885 		 * support field issues.
11886 		 */
11887 		error = lpfc_nvme_create_localport(vport);
11888 		if (error) {
11889 			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11890 					"6004 NVME registration failed, "
11891 					"error x%x\n",
11892 					error);
11893 		}
11894 	}
11895 
11896 	/* check for firmware upgrade or downgrade */
11897 	if (phba->cfg_request_firmware_upgrade)
11898 		lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
11899 
11900 	/* Check if there are static vports to be created. */
11901 	lpfc_create_static_vport(phba);
11902 
11903 	/* Enable RAS FW log support */
11904 	lpfc_sli4_ras_setup(phba);
11905 
11906 	return 0;
11907 
11908 out_disable_intr:
11909 	lpfc_sli4_disable_intr(phba);
11910 out_free_sysfs_attr:
11911 	lpfc_free_sysfs_attr(vport);
11912 out_destroy_shost:
11913 	lpfc_destroy_shost(phba);
11914 out_unset_driver_resource:
11915 	lpfc_unset_driver_resource_phase2(phba);
11916 out_unset_driver_resource_s4:
11917 	lpfc_sli4_driver_resource_unset(phba);
11918 out_unset_pci_mem_s4:
11919 	lpfc_sli4_pci_mem_unset(phba);
11920 out_disable_pci_dev:
11921 	lpfc_disable_pci_dev(phba);
11922 	if (shost)
11923 		scsi_host_put(shost);
11924 out_free_phba:
11925 	lpfc_hba_free(phba);
11926 	return error;
11927 }
11928 
11929 /**
11930  * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
11931  * @pdev: pointer to PCI device
11932  *
11933  * This routine is called from the kernel's PCI subsystem to device with
11934  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
11935  * removed from PCI bus, it performs all the necessary cleanup for the HBA
11936  * device to be removed from the PCI subsystem properly.
11937  **/
11938 static void
11939 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
11940 {
11941 	struct Scsi_Host *shost = pci_get_drvdata(pdev);
11942 	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
11943 	struct lpfc_vport **vports;
11944 	struct lpfc_hba *phba = vport->phba;
11945 	int i;
11946 
11947 	/* Mark the device unloading flag */
11948 	spin_lock_irq(&phba->hbalock);
11949 	vport->load_flag |= FC_UNLOADING;
11950 	spin_unlock_irq(&phba->hbalock);
11951 
11952 	/* Free the HBA sysfs attributes */
11953 	lpfc_free_sysfs_attr(vport);
11954 
11955 	/* Release all the vports against this physical port */
11956 	vports = lpfc_create_vport_work_array(phba);
11957 	if (vports != NULL)
11958 		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
11959 			if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
11960 				continue;
11961 			fc_vport_terminate(vports[i]->fc_vport);
11962 		}
11963 	lpfc_destroy_vport_work_array(phba, vports);
11964 
11965 	/* Remove FC host and then SCSI host with the physical port */
11966 	fc_remove_host(shost);
11967 	scsi_remove_host(shost);
11968 
11969 	/* Perform ndlp cleanup on the physical port.  The nvme and nvmet
11970 	 * localports are destroyed after to cleanup all transport memory.
11971 	 */
11972 	lpfc_cleanup(vport);
11973 	lpfc_nvmet_destroy_targetport(phba);
11974 	lpfc_nvme_destroy_localport(vport);
11975 
11976 	/*
11977 	 * Bring down the SLI Layer. This step disables all interrupts,
11978 	 * clears the rings, discards all mailbox commands, and resets
11979 	 * the HBA FCoE function.
11980 	 */
11981 	lpfc_debugfs_terminate(vport);
11982 	lpfc_sli4_hba_unset(phba);
11983 
11984 	lpfc_stop_hba_timers(phba);
11985 	spin_lock_irq(&phba->port_list_lock);
11986 	list_del_init(&vport->listentry);
11987 	spin_unlock_irq(&phba->port_list_lock);
11988 
11989 	/* Perform scsi free before driver resource_unset since scsi
11990 	 * buffers are released to their corresponding pools here.
11991 	 */
11992 	lpfc_scsi_free(phba);
11993 	lpfc_nvme_free(phba);
11994 	lpfc_free_iocb_list(phba);
11995 
11996 	lpfc_unset_driver_resource_phase2(phba);
11997 	lpfc_sli4_driver_resource_unset(phba);
11998 
11999 	/* Unmap adapter Control and Doorbell registers */
12000 	lpfc_sli4_pci_mem_unset(phba);
12001 
12002 	/* Release PCI resources and disable device's PCI function */
12003 	scsi_host_put(shost);
12004 	lpfc_disable_pci_dev(phba);
12005 
12006 	/* Finally, free the driver's device data structure */
12007 	lpfc_hba_free(phba);
12008 
12009 	return;
12010 }
12011 
12012 /**
12013  * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
12014  * @pdev: pointer to PCI device
12015  * @msg: power management message
12016  *
12017  * This routine is called from the kernel's PCI subsystem to support system
12018  * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
12019  * this method, it quiesces the device by stopping the driver's worker
12020  * thread for the device, turning off device's interrupt and DMA, and bring
12021  * the device offline. Note that as the driver implements the minimum PM
12022  * requirements to a power-aware driver's PM support for suspend/resume -- all
12023  * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
12024  * method call will be treated as SUSPEND and the driver will fully
12025  * reinitialize its device during resume() method call, the driver will set
12026  * device to PCI_D3hot state in PCI config space instead of setting it
12027  * according to the @msg provided by the PM.
12028  *
12029  * Return code
12030  * 	0 - driver suspended the device
12031  * 	Error otherwise
12032  **/
12033 static int
12034 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
12035 {
12036 	struct Scsi_Host *shost = pci_get_drvdata(pdev);
12037 	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12038 
12039 	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12040 			"2843 PCI device Power Management suspend.\n");
12041 
12042 	/* Bring down the device */
12043 	lpfc_offline_prep(phba, LPFC_MBX_WAIT);
12044 	lpfc_offline(phba);
12045 	kthread_stop(phba->worker_thread);
12046 
12047 	/* Disable interrupt from device */
12048 	lpfc_sli4_disable_intr(phba);
12049 	lpfc_sli4_queue_destroy(phba);
12050 
12051 	/* Save device state to PCI config space */
12052 	pci_save_state(pdev);
12053 	pci_set_power_state(pdev, PCI_D3hot);
12054 
12055 	return 0;
12056 }
12057 
12058 /**
12059  * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
12060  * @pdev: pointer to PCI device
12061  *
12062  * This routine is called from the kernel's PCI subsystem to support system
12063  * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
12064  * this method, it restores the device's PCI config space state and fully
12065  * reinitializes the device and brings it online. Note that as the driver
12066  * implements the minimum PM requirements to a power-aware driver's PM for
12067  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
12068  * to the suspend() method call will be treated as SUSPEND and the driver
12069  * will fully reinitialize its device during resume() method call, the device
12070  * will be set to PCI_D0 directly in PCI config space before restoring the
12071  * state.
12072  *
12073  * Return code
12074  * 	0 - driver suspended the device
12075  * 	Error otherwise
12076  **/
12077 static int
12078 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
12079 {
12080 	struct Scsi_Host *shost = pci_get_drvdata(pdev);
12081 	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12082 	uint32_t intr_mode;
12083 	int error;
12084 
12085 	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12086 			"0292 PCI device Power Management resume.\n");
12087 
12088 	/* Restore device state from PCI config space */
12089 	pci_set_power_state(pdev, PCI_D0);
12090 	pci_restore_state(pdev);
12091 
12092 	/*
12093 	 * As the new kernel behavior of pci_restore_state() API call clears
12094 	 * device saved_state flag, need to save the restored state again.
12095 	 */
12096 	pci_save_state(pdev);
12097 
12098 	if (pdev->is_busmaster)
12099 		pci_set_master(pdev);
12100 
12101 	 /* Startup the kernel thread for this host adapter. */
12102 	phba->worker_thread = kthread_run(lpfc_do_work, phba,
12103 					"lpfc_worker_%d", phba->brd_no);
12104 	if (IS_ERR(phba->worker_thread)) {
12105 		error = PTR_ERR(phba->worker_thread);
12106 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12107 				"0293 PM resume failed to start worker "
12108 				"thread: error=x%x.\n", error);
12109 		return error;
12110 	}
12111 
12112 	/* Configure and enable interrupt */
12113 	intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
12114 	if (intr_mode == LPFC_INTR_ERROR) {
12115 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12116 				"0294 PM resume Failed to enable interrupt\n");
12117 		return -EIO;
12118 	} else
12119 		phba->intr_mode = intr_mode;
12120 
12121 	/* Restart HBA and bring it online */
12122 	lpfc_sli_brdrestart(phba);
12123 	lpfc_online(phba);
12124 
12125 	/* Log the current active interrupt mode */
12126 	lpfc_log_intr_mode(phba, phba->intr_mode);
12127 
12128 	return 0;
12129 }
12130 
12131 /**
12132  * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
12133  * @phba: pointer to lpfc hba data structure.
12134  *
12135  * This routine is called to prepare the SLI4 device for PCI slot recover. It
12136  * aborts all the outstanding SCSI I/Os to the pci device.
12137  **/
12138 static void
12139 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
12140 {
12141 	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12142 			"2828 PCI channel I/O abort preparing for recovery\n");
12143 	/*
12144 	 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
12145 	 * and let the SCSI mid-layer to retry them to recover.
12146 	 */
12147 	lpfc_sli_abort_fcp_rings(phba);
12148 }
12149 
12150 /**
12151  * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
12152  * @phba: pointer to lpfc hba data structure.
12153  *
12154  * This routine is called to prepare the SLI4 device for PCI slot reset. It
12155  * disables the device interrupt and pci device, and aborts the internal FCP
12156  * pending I/Os.
12157  **/
12158 static void
12159 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
12160 {
12161 	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12162 			"2826 PCI channel disable preparing for reset\n");
12163 
12164 	/* Block any management I/Os to the device */
12165 	lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
12166 
12167 	/* Block all SCSI devices' I/Os on the host */
12168 	lpfc_scsi_dev_block(phba);
12169 
12170 	/* Flush all driver's outstanding SCSI I/Os as we are to reset */
12171 	lpfc_sli_flush_fcp_rings(phba);
12172 
12173 	/* Flush the outstanding NVME IOs if fc4 type enabled. */
12174 	if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
12175 		lpfc_sli_flush_nvme_rings(phba);
12176 
12177 	/* stop all timers */
12178 	lpfc_stop_hba_timers(phba);
12179 
12180 	/* Disable interrupt and pci device */
12181 	lpfc_sli4_disable_intr(phba);
12182 	lpfc_sli4_queue_destroy(phba);
12183 	pci_disable_device(phba->pcidev);
12184 }
12185 
12186 /**
12187  * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
12188  * @phba: pointer to lpfc hba data structure.
12189  *
12190  * This routine is called to prepare the SLI4 device for PCI slot permanently
12191  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
12192  * pending I/Os.
12193  **/
12194 static void
12195 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
12196 {
12197 	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12198 			"2827 PCI channel permanent disable for failure\n");
12199 
12200 	/* Block all SCSI devices' I/Os on the host */
12201 	lpfc_scsi_dev_block(phba);
12202 
12203 	/* stop all timers */
12204 	lpfc_stop_hba_timers(phba);
12205 
12206 	/* Clean up all driver's outstanding SCSI I/Os */
12207 	lpfc_sli_flush_fcp_rings(phba);
12208 
12209 	/* Flush the outstanding NVME IOs if fc4 type enabled. */
12210 	if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
12211 		lpfc_sli_flush_nvme_rings(phba);
12212 }
12213 
12214 /**
12215  * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
12216  * @pdev: pointer to PCI device.
12217  * @state: the current PCI connection state.
12218  *
12219  * This routine is called from the PCI subsystem for error handling to device
12220  * with SLI-4 interface spec. This function is called by the PCI subsystem
12221  * after a PCI bus error affecting this device has been detected. When this
12222  * function is invoked, it will need to stop all the I/Os and interrupt(s)
12223  * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
12224  * for the PCI subsystem to perform proper recovery as desired.
12225  *
12226  * Return codes
12227  * 	PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
12228  * 	PCI_ERS_RESULT_DISCONNECT - device could not be recovered
12229  **/
12230 static pci_ers_result_t
12231 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
12232 {
12233 	struct Scsi_Host *shost = pci_get_drvdata(pdev);
12234 	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12235 
12236 	switch (state) {
12237 	case pci_channel_io_normal:
12238 		/* Non-fatal error, prepare for recovery */
12239 		lpfc_sli4_prep_dev_for_recover(phba);
12240 		return PCI_ERS_RESULT_CAN_RECOVER;
12241 	case pci_channel_io_frozen:
12242 		/* Fatal error, prepare for slot reset */
12243 		lpfc_sli4_prep_dev_for_reset(phba);
12244 		return PCI_ERS_RESULT_NEED_RESET;
12245 	case pci_channel_io_perm_failure:
12246 		/* Permanent failure, prepare for device down */
12247 		lpfc_sli4_prep_dev_for_perm_failure(phba);
12248 		return PCI_ERS_RESULT_DISCONNECT;
12249 	default:
12250 		/* Unknown state, prepare and request slot reset */
12251 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12252 				"2825 Unknown PCI error state: x%x\n", state);
12253 		lpfc_sli4_prep_dev_for_reset(phba);
12254 		return PCI_ERS_RESULT_NEED_RESET;
12255 	}
12256 }
12257 
12258 /**
12259  * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
12260  * @pdev: pointer to PCI device.
12261  *
12262  * This routine is called from the PCI subsystem for error handling to device
12263  * with SLI-4 interface spec. It is called after PCI bus has been reset to
12264  * restart the PCI card from scratch, as if from a cold-boot. During the
12265  * PCI subsystem error recovery, after the driver returns
12266  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
12267  * recovery and then call this routine before calling the .resume method to
12268  * recover the device. This function will initialize the HBA device, enable
12269  * the interrupt, but it will just put the HBA to offline state without
12270  * passing any I/O traffic.
12271  *
12272  * Return codes
12273  * 	PCI_ERS_RESULT_RECOVERED - the device has been recovered
12274  * 	PCI_ERS_RESULT_DISCONNECT - device could not be recovered
12275  */
12276 static pci_ers_result_t
12277 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
12278 {
12279 	struct Scsi_Host *shost = pci_get_drvdata(pdev);
12280 	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12281 	struct lpfc_sli *psli = &phba->sli;
12282 	uint32_t intr_mode;
12283 
12284 	dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
12285 	if (pci_enable_device_mem(pdev)) {
12286 		printk(KERN_ERR "lpfc: Cannot re-enable "
12287 			"PCI device after reset.\n");
12288 		return PCI_ERS_RESULT_DISCONNECT;
12289 	}
12290 
12291 	pci_restore_state(pdev);
12292 
12293 	/*
12294 	 * As the new kernel behavior of pci_restore_state() API call clears
12295 	 * device saved_state flag, need to save the restored state again.
12296 	 */
12297 	pci_save_state(pdev);
12298 
12299 	if (pdev->is_busmaster)
12300 		pci_set_master(pdev);
12301 
12302 	spin_lock_irq(&phba->hbalock);
12303 	psli->sli_flag &= ~LPFC_SLI_ACTIVE;
12304 	spin_unlock_irq(&phba->hbalock);
12305 
12306 	/* Configure and enable interrupt */
12307 	intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
12308 	if (intr_mode == LPFC_INTR_ERROR) {
12309 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12310 				"2824 Cannot re-enable interrupt after "
12311 				"slot reset.\n");
12312 		return PCI_ERS_RESULT_DISCONNECT;
12313 	} else
12314 		phba->intr_mode = intr_mode;
12315 
12316 	/* Log the current active interrupt mode */
12317 	lpfc_log_intr_mode(phba, phba->intr_mode);
12318 
12319 	return PCI_ERS_RESULT_RECOVERED;
12320 }
12321 
12322 /**
12323  * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
12324  * @pdev: pointer to PCI device
12325  *
12326  * This routine is called from the PCI subsystem for error handling to device
12327  * with SLI-4 interface spec. It is called when kernel error recovery tells
12328  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
12329  * error recovery. After this call, traffic can start to flow from this device
12330  * again.
12331  **/
12332 static void
12333 lpfc_io_resume_s4(struct pci_dev *pdev)
12334 {
12335 	struct Scsi_Host *shost = pci_get_drvdata(pdev);
12336 	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12337 
12338 	/*
12339 	 * In case of slot reset, as function reset is performed through
12340 	 * mailbox command which needs DMA to be enabled, this operation
12341 	 * has to be moved to the io resume phase. Taking device offline
12342 	 * will perform the necessary cleanup.
12343 	 */
12344 	if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
12345 		/* Perform device reset */
12346 		lpfc_offline_prep(phba, LPFC_MBX_WAIT);
12347 		lpfc_offline(phba);
12348 		lpfc_sli_brdrestart(phba);
12349 		/* Bring the device back online */
12350 		lpfc_online(phba);
12351 	}
12352 }
12353 
12354 /**
12355  * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
12356  * @pdev: pointer to PCI device
12357  * @pid: pointer to PCI device identifier
12358  *
12359  * This routine is to be registered to the kernel's PCI subsystem. When an
12360  * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
12361  * at PCI device-specific information of the device and driver to see if the
12362  * driver state that it can support this kind of device. If the match is
12363  * successful, the driver core invokes this routine. This routine dispatches
12364  * the action to the proper SLI-3 or SLI-4 device probing routine, which will
12365  * do all the initialization that it needs to do to handle the HBA device
12366  * properly.
12367  *
12368  * Return code
12369  * 	0 - driver can claim the device
12370  * 	negative value - driver can not claim the device
12371  **/
12372 static int
12373 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
12374 {
12375 	int rc;
12376 	struct lpfc_sli_intf intf;
12377 
12378 	if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
12379 		return -ENODEV;
12380 
12381 	if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
12382 	    (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
12383 		rc = lpfc_pci_probe_one_s4(pdev, pid);
12384 	else
12385 		rc = lpfc_pci_probe_one_s3(pdev, pid);
12386 
12387 	return rc;
12388 }
12389 
12390 /**
12391  * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
12392  * @pdev: pointer to PCI device
12393  *
12394  * This routine is to be registered to the kernel's PCI subsystem. When an
12395  * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
12396  * This routine dispatches the action to the proper SLI-3 or SLI-4 device
12397  * remove routine, which will perform all the necessary cleanup for the
12398  * device to be removed from the PCI subsystem properly.
12399  **/
12400 static void
12401 lpfc_pci_remove_one(struct pci_dev *pdev)
12402 {
12403 	struct Scsi_Host *shost = pci_get_drvdata(pdev);
12404 	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12405 
12406 	switch (phba->pci_dev_grp) {
12407 	case LPFC_PCI_DEV_LP:
12408 		lpfc_pci_remove_one_s3(pdev);
12409 		break;
12410 	case LPFC_PCI_DEV_OC:
12411 		lpfc_pci_remove_one_s4(pdev);
12412 		break;
12413 	default:
12414 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12415 				"1424 Invalid PCI device group: 0x%x\n",
12416 				phba->pci_dev_grp);
12417 		break;
12418 	}
12419 	return;
12420 }
12421 
12422 /**
12423  * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
12424  * @pdev: pointer to PCI device
12425  * @msg: power management message
12426  *
12427  * This routine is to be registered to the kernel's PCI subsystem to support
12428  * system Power Management (PM). When PM invokes this method, it dispatches
12429  * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
12430  * suspend the device.
12431  *
12432  * Return code
12433  * 	0 - driver suspended the device
12434  * 	Error otherwise
12435  **/
12436 static int
12437 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
12438 {
12439 	struct Scsi_Host *shost = pci_get_drvdata(pdev);
12440 	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12441 	int rc = -ENODEV;
12442 
12443 	switch (phba->pci_dev_grp) {
12444 	case LPFC_PCI_DEV_LP:
12445 		rc = lpfc_pci_suspend_one_s3(pdev, msg);
12446 		break;
12447 	case LPFC_PCI_DEV_OC:
12448 		rc = lpfc_pci_suspend_one_s4(pdev, msg);
12449 		break;
12450 	default:
12451 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12452 				"1425 Invalid PCI device group: 0x%x\n",
12453 				phba->pci_dev_grp);
12454 		break;
12455 	}
12456 	return rc;
12457 }
12458 
12459 /**
12460  * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
12461  * @pdev: pointer to PCI device
12462  *
12463  * This routine is to be registered to the kernel's PCI subsystem to support
12464  * system Power Management (PM). When PM invokes this method, it dispatches
12465  * the action to the proper SLI-3 or SLI-4 device resume routine, which will
12466  * resume the device.
12467  *
12468  * Return code
12469  * 	0 - driver suspended the device
12470  * 	Error otherwise
12471  **/
12472 static int
12473 lpfc_pci_resume_one(struct pci_dev *pdev)
12474 {
12475 	struct Scsi_Host *shost = pci_get_drvdata(pdev);
12476 	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12477 	int rc = -ENODEV;
12478 
12479 	switch (phba->pci_dev_grp) {
12480 	case LPFC_PCI_DEV_LP:
12481 		rc = lpfc_pci_resume_one_s3(pdev);
12482 		break;
12483 	case LPFC_PCI_DEV_OC:
12484 		rc = lpfc_pci_resume_one_s4(pdev);
12485 		break;
12486 	default:
12487 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12488 				"1426 Invalid PCI device group: 0x%x\n",
12489 				phba->pci_dev_grp);
12490 		break;
12491 	}
12492 	return rc;
12493 }
12494 
12495 /**
12496  * lpfc_io_error_detected - lpfc method for handling PCI I/O error
12497  * @pdev: pointer to PCI device.
12498  * @state: the current PCI connection state.
12499  *
12500  * This routine is registered to the PCI subsystem for error handling. This
12501  * function is called by the PCI subsystem after a PCI bus error affecting
12502  * this device has been detected. When this routine is invoked, it dispatches
12503  * the action to the proper SLI-3 or SLI-4 device error detected handling
12504  * routine, which will perform the proper error detected operation.
12505  *
12506  * Return codes
12507  * 	PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
12508  * 	PCI_ERS_RESULT_DISCONNECT - device could not be recovered
12509  **/
12510 static pci_ers_result_t
12511 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
12512 {
12513 	struct Scsi_Host *shost = pci_get_drvdata(pdev);
12514 	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12515 	pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
12516 
12517 	switch (phba->pci_dev_grp) {
12518 	case LPFC_PCI_DEV_LP:
12519 		rc = lpfc_io_error_detected_s3(pdev, state);
12520 		break;
12521 	case LPFC_PCI_DEV_OC:
12522 		rc = lpfc_io_error_detected_s4(pdev, state);
12523 		break;
12524 	default:
12525 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12526 				"1427 Invalid PCI device group: 0x%x\n",
12527 				phba->pci_dev_grp);
12528 		break;
12529 	}
12530 	return rc;
12531 }
12532 
12533 /**
12534  * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
12535  * @pdev: pointer to PCI device.
12536  *
12537  * This routine is registered to the PCI subsystem for error handling. This
12538  * function is called after PCI bus has been reset to restart the PCI card
12539  * from scratch, as if from a cold-boot. When this routine is invoked, it
12540  * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
12541  * routine, which will perform the proper device reset.
12542  *
12543  * Return codes
12544  * 	PCI_ERS_RESULT_RECOVERED - the device has been recovered
12545  * 	PCI_ERS_RESULT_DISCONNECT - device could not be recovered
12546  **/
12547 static pci_ers_result_t
12548 lpfc_io_slot_reset(struct pci_dev *pdev)
12549 {
12550 	struct Scsi_Host *shost = pci_get_drvdata(pdev);
12551 	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12552 	pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
12553 
12554 	switch (phba->pci_dev_grp) {
12555 	case LPFC_PCI_DEV_LP:
12556 		rc = lpfc_io_slot_reset_s3(pdev);
12557 		break;
12558 	case LPFC_PCI_DEV_OC:
12559 		rc = lpfc_io_slot_reset_s4(pdev);
12560 		break;
12561 	default:
12562 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12563 				"1428 Invalid PCI device group: 0x%x\n",
12564 				phba->pci_dev_grp);
12565 		break;
12566 	}
12567 	return rc;
12568 }
12569 
12570 /**
12571  * lpfc_io_resume - lpfc method for resuming PCI I/O operation
12572  * @pdev: pointer to PCI device
12573  *
12574  * This routine is registered to the PCI subsystem for error handling. It
12575  * is called when kernel error recovery tells the lpfc driver that it is
12576  * OK to resume normal PCI operation after PCI bus error recovery. When
12577  * this routine is invoked, it dispatches the action to the proper SLI-3
12578  * or SLI-4 device io_resume routine, which will resume the device operation.
12579  **/
12580 static void
12581 lpfc_io_resume(struct pci_dev *pdev)
12582 {
12583 	struct Scsi_Host *shost = pci_get_drvdata(pdev);
12584 	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12585 
12586 	switch (phba->pci_dev_grp) {
12587 	case LPFC_PCI_DEV_LP:
12588 		lpfc_io_resume_s3(pdev);
12589 		break;
12590 	case LPFC_PCI_DEV_OC:
12591 		lpfc_io_resume_s4(pdev);
12592 		break;
12593 	default:
12594 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12595 				"1429 Invalid PCI device group: 0x%x\n",
12596 				phba->pci_dev_grp);
12597 		break;
12598 	}
12599 	return;
12600 }
12601 
12602 /**
12603  * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter
12604  * @phba: pointer to lpfc hba data structure.
12605  *
12606  * This routine checks to see if OAS is supported for this adapter. If
12607  * supported, the configure Flash Optimized Fabric flag is set.  Otherwise,
12608  * the enable oas flag is cleared and the pool created for OAS device data
12609  * is destroyed.
12610  *
12611  **/
12612 void
12613 lpfc_sli4_oas_verify(struct lpfc_hba *phba)
12614 {
12615 
12616 	if (!phba->cfg_EnableXLane)
12617 		return;
12618 
12619 	if (phba->sli4_hba.pc_sli4_params.oas_supported) {
12620 		phba->cfg_fof = 1;
12621 	} else {
12622 		phba->cfg_fof = 0;
12623 		if (phba->device_data_mem_pool)
12624 			mempool_destroy(phba->device_data_mem_pool);
12625 		phba->device_data_mem_pool = NULL;
12626 	}
12627 
12628 	return;
12629 }
12630 
12631 /**
12632  * lpfc_sli4_ras_init - Verify RAS-FW log is supported by this adapter
12633  * @phba: pointer to lpfc hba data structure.
12634  *
12635  * This routine checks to see if RAS is supported by the adapter. Check the
12636  * function through which RAS support enablement is to be done.
12637  **/
12638 void
12639 lpfc_sli4_ras_init(struct lpfc_hba *phba)
12640 {
12641 	switch (phba->pcidev->device) {
12642 	case PCI_DEVICE_ID_LANCER_G6_FC:
12643 	case PCI_DEVICE_ID_LANCER_G7_FC:
12644 		phba->ras_fwlog.ras_hwsupport = true;
12645 		if (phba->cfg_ras_fwlog_func == PCI_FUNC(phba->pcidev->devfn) &&
12646 		    phba->cfg_ras_fwlog_buffsize)
12647 			phba->ras_fwlog.ras_enabled = true;
12648 		else
12649 			phba->ras_fwlog.ras_enabled = false;
12650 		break;
12651 	default:
12652 		phba->ras_fwlog.ras_hwsupport = false;
12653 	}
12654 }
12655 
12656 /**
12657  * lpfc_fof_queue_setup - Set up all the fof queues
12658  * @phba: pointer to lpfc hba data structure.
12659  *
12660  * This routine is invoked to set up all the fof queues for the FC HBA
12661  * operation.
12662  *
12663  * Return codes
12664  *      0 - successful
12665  *      -ENOMEM - No available memory
12666  **/
12667 int
12668 lpfc_fof_queue_setup(struct lpfc_hba *phba)
12669 {
12670 	struct lpfc_sli_ring *pring;
12671 	int rc;
12672 
12673 	rc = lpfc_eq_create(phba, phba->sli4_hba.fof_eq, LPFC_MAX_IMAX);
12674 	if (rc)
12675 		return -ENOMEM;
12676 
12677 	if (phba->cfg_fof) {
12678 
12679 		rc = lpfc_cq_create(phba, phba->sli4_hba.oas_cq,
12680 				    phba->sli4_hba.fof_eq, LPFC_WCQ, LPFC_FCP);
12681 		if (rc)
12682 			goto out_oas_cq;
12683 
12684 		rc = lpfc_wq_create(phba, phba->sli4_hba.oas_wq,
12685 				    phba->sli4_hba.oas_cq, LPFC_FCP);
12686 		if (rc)
12687 			goto out_oas_wq;
12688 
12689 		/* Bind this CQ/WQ to the NVME ring */
12690 		pring = phba->sli4_hba.oas_wq->pring;
12691 		pring->sli.sli4.wqp =
12692 			(void *)phba->sli4_hba.oas_wq;
12693 		phba->sli4_hba.oas_cq->pring = pring;
12694 	}
12695 
12696 	return 0;
12697 
12698 out_oas_wq:
12699 	lpfc_cq_destroy(phba, phba->sli4_hba.oas_cq);
12700 out_oas_cq:
12701 	lpfc_eq_destroy(phba, phba->sli4_hba.fof_eq);
12702 	return rc;
12703 
12704 }
12705 
12706 /**
12707  * lpfc_fof_queue_create - Create all the fof queues
12708  * @phba: pointer to lpfc hba data structure.
12709  *
12710  * This routine is invoked to allocate all the fof queues for the FC HBA
12711  * operation. For each SLI4 queue type, the parameters such as queue entry
12712  * count (queue depth) shall be taken from the module parameter. For now,
12713  * we just use some constant number as place holder.
12714  *
12715  * Return codes
12716  *      0 - successful
12717  *      -ENOMEM - No availble memory
12718  *      -EIO - The mailbox failed to complete successfully.
12719  **/
12720 int
12721 lpfc_fof_queue_create(struct lpfc_hba *phba)
12722 {
12723 	struct lpfc_queue *qdesc;
12724 	uint32_t wqesize;
12725 
12726 	/* Create FOF EQ */
12727 	qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
12728 				      phba->sli4_hba.eq_esize,
12729 				      phba->sli4_hba.eq_ecount);
12730 	if (!qdesc)
12731 		goto out_error;
12732 
12733 	qdesc->qe_valid = 1;
12734 	phba->sli4_hba.fof_eq = qdesc;
12735 
12736 	if (phba->cfg_fof) {
12737 
12738 		/* Create OAS CQ */
12739 		if (phba->enab_exp_wqcq_pages)
12740 			qdesc = lpfc_sli4_queue_alloc(phba,
12741 						      LPFC_EXPANDED_PAGE_SIZE,
12742 						      phba->sli4_hba.cq_esize,
12743 						      LPFC_CQE_EXP_COUNT);
12744 		else
12745 			qdesc = lpfc_sli4_queue_alloc(phba,
12746 						      LPFC_DEFAULT_PAGE_SIZE,
12747 						      phba->sli4_hba.cq_esize,
12748 						      phba->sli4_hba.cq_ecount);
12749 		if (!qdesc)
12750 			goto out_error;
12751 
12752 		qdesc->qe_valid = 1;
12753 		phba->sli4_hba.oas_cq = qdesc;
12754 
12755 		/* Create OAS WQ */
12756 		if (phba->enab_exp_wqcq_pages) {
12757 			wqesize = (phba->fcp_embed_io) ?
12758 				LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize;
12759 			qdesc = lpfc_sli4_queue_alloc(phba,
12760 						      LPFC_EXPANDED_PAGE_SIZE,
12761 						      wqesize,
12762 						      LPFC_WQE_EXP_COUNT);
12763 		} else
12764 			qdesc = lpfc_sli4_queue_alloc(phba,
12765 						      LPFC_DEFAULT_PAGE_SIZE,
12766 						      phba->sli4_hba.wq_esize,
12767 						      phba->sli4_hba.wq_ecount);
12768 
12769 		if (!qdesc)
12770 			goto out_error;
12771 
12772 		phba->sli4_hba.oas_wq = qdesc;
12773 		list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
12774 
12775 	}
12776 	return 0;
12777 
12778 out_error:
12779 	lpfc_fof_queue_destroy(phba);
12780 	return -ENOMEM;
12781 }
12782 
12783 /**
12784  * lpfc_fof_queue_destroy - Destroy all the fof queues
12785  * @phba: pointer to lpfc hba data structure.
12786  *
12787  * This routine is invoked to release all the SLI4 queues with the FC HBA
12788  * operation.
12789  *
12790  * Return codes
12791  *      0 - successful
12792  **/
12793 int
12794 lpfc_fof_queue_destroy(struct lpfc_hba *phba)
12795 {
12796 	/* Release FOF Event queue */
12797 	if (phba->sli4_hba.fof_eq != NULL) {
12798 		lpfc_sli4_queue_free(phba->sli4_hba.fof_eq);
12799 		phba->sli4_hba.fof_eq = NULL;
12800 	}
12801 
12802 	/* Release OAS Completion queue */
12803 	if (phba->sli4_hba.oas_cq != NULL) {
12804 		lpfc_sli4_queue_free(phba->sli4_hba.oas_cq);
12805 		phba->sli4_hba.oas_cq = NULL;
12806 	}
12807 
12808 	/* Release OAS Work queue */
12809 	if (phba->sli4_hba.oas_wq != NULL) {
12810 		lpfc_sli4_queue_free(phba->sli4_hba.oas_wq);
12811 		phba->sli4_hba.oas_wq = NULL;
12812 	}
12813 	return 0;
12814 }
12815 
12816 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
12817 
12818 static const struct pci_error_handlers lpfc_err_handler = {
12819 	.error_detected = lpfc_io_error_detected,
12820 	.slot_reset = lpfc_io_slot_reset,
12821 	.resume = lpfc_io_resume,
12822 };
12823 
12824 static struct pci_driver lpfc_driver = {
12825 	.name		= LPFC_DRIVER_NAME,
12826 	.id_table	= lpfc_id_table,
12827 	.probe		= lpfc_pci_probe_one,
12828 	.remove		= lpfc_pci_remove_one,
12829 	.shutdown	= lpfc_pci_remove_one,
12830 	.suspend        = lpfc_pci_suspend_one,
12831 	.resume		= lpfc_pci_resume_one,
12832 	.err_handler    = &lpfc_err_handler,
12833 };
12834 
12835 static const struct file_operations lpfc_mgmt_fop = {
12836 	.owner = THIS_MODULE,
12837 };
12838 
12839 static struct miscdevice lpfc_mgmt_dev = {
12840 	.minor = MISC_DYNAMIC_MINOR,
12841 	.name = "lpfcmgmt",
12842 	.fops = &lpfc_mgmt_fop,
12843 };
12844 
12845 /**
12846  * lpfc_init - lpfc module initialization routine
12847  *
12848  * This routine is to be invoked when the lpfc module is loaded into the
12849  * kernel. The special kernel macro module_init() is used to indicate the
12850  * role of this routine to the kernel as lpfc module entry point.
12851  *
12852  * Return codes
12853  *   0 - successful
12854  *   -ENOMEM - FC attach transport failed
12855  *   all others - failed
12856  */
12857 static int __init
12858 lpfc_init(void)
12859 {
12860 	int error = 0;
12861 
12862 	printk(LPFC_MODULE_DESC "\n");
12863 	printk(LPFC_COPYRIGHT "\n");
12864 
12865 	error = misc_register(&lpfc_mgmt_dev);
12866 	if (error)
12867 		printk(KERN_ERR "Could not register lpfcmgmt device, "
12868 			"misc_register returned with status %d", error);
12869 
12870 	lpfc_transport_functions.vport_create = lpfc_vport_create;
12871 	lpfc_transport_functions.vport_delete = lpfc_vport_delete;
12872 	lpfc_transport_template =
12873 				fc_attach_transport(&lpfc_transport_functions);
12874 	if (lpfc_transport_template == NULL)
12875 		return -ENOMEM;
12876 	lpfc_vport_transport_template =
12877 		fc_attach_transport(&lpfc_vport_transport_functions);
12878 	if (lpfc_vport_transport_template == NULL) {
12879 		fc_release_transport(lpfc_transport_template);
12880 		return -ENOMEM;
12881 	}
12882 	lpfc_nvme_cmd_template();
12883 	lpfc_nvmet_cmd_template();
12884 
12885 	/* Initialize in case vector mapping is needed */
12886 	lpfc_used_cpu = NULL;
12887 	lpfc_present_cpu = num_present_cpus();
12888 
12889 	error = pci_register_driver(&lpfc_driver);
12890 	if (error) {
12891 		fc_release_transport(lpfc_transport_template);
12892 		fc_release_transport(lpfc_vport_transport_template);
12893 	}
12894 
12895 	return error;
12896 }
12897 
12898 /**
12899  * lpfc_exit - lpfc module removal routine
12900  *
12901  * This routine is invoked when the lpfc module is removed from the kernel.
12902  * The special kernel macro module_exit() is used to indicate the role of
12903  * this routine to the kernel as lpfc module exit point.
12904  */
12905 static void __exit
12906 lpfc_exit(void)
12907 {
12908 	misc_deregister(&lpfc_mgmt_dev);
12909 	pci_unregister_driver(&lpfc_driver);
12910 	fc_release_transport(lpfc_transport_template);
12911 	fc_release_transport(lpfc_vport_transport_template);
12912 	if (_dump_buf_data) {
12913 		printk(KERN_ERR	"9062 BLKGRD: freeing %lu pages for "
12914 				"_dump_buf_data at 0x%p\n",
12915 				(1L << _dump_buf_data_order), _dump_buf_data);
12916 		free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
12917 	}
12918 
12919 	if (_dump_buf_dif) {
12920 		printk(KERN_ERR	"9049 BLKGRD: freeing %lu pages for "
12921 				"_dump_buf_dif at 0x%p\n",
12922 				(1L << _dump_buf_dif_order), _dump_buf_dif);
12923 		free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
12924 	}
12925 	kfree(lpfc_used_cpu);
12926 	idr_destroy(&lpfc_hba_index);
12927 }
12928 
12929 module_init(lpfc_init);
12930 module_exit(lpfc_exit);
12931 MODULE_LICENSE("GPL");
12932 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
12933 MODULE_AUTHOR("Broadcom");
12934 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);
12935