xref: /openbmc/linux/drivers/scsi/lpfc/lpfc.h (revision 8795a739)
1 /*******************************************************************
2  * This file is part of the Emulex Linux Device Driver for         *
3  * Fibre Channel Host Bus Adapters.                                *
4  * Copyright (C) 2017-2019 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 <scsi/scsi_host.h>
25 #include <linux/ktime.h>
26 #include <linux/workqueue.h>
27 
28 #if defined(CONFIG_DEBUG_FS) && !defined(CONFIG_SCSI_LPFC_DEBUG_FS)
29 #define CONFIG_SCSI_LPFC_DEBUG_FS
30 #endif
31 
32 struct lpfc_sli2_slim;
33 
34 #define ELX_MODEL_NAME_SIZE	80
35 
36 #define LPFC_PCI_DEV_LP		0x1
37 #define LPFC_PCI_DEV_OC		0x2
38 
39 #define LPFC_SLI_REV2		2
40 #define LPFC_SLI_REV3		3
41 #define LPFC_SLI_REV4		4
42 
43 #define LPFC_MAX_TARGET		4096	/* max number of targets supported */
44 #define LPFC_MAX_DISC_THREADS	64	/* max outstanding discovery els
45 					   requests */
46 #define LPFC_MAX_NS_RETRY	3	/* Number of retry attempts to contact
47 					   the NameServer  before giving up. */
48 #define LPFC_CMD_PER_LUN	3	/* max outstanding cmds per lun */
49 #define LPFC_DEFAULT_SG_SEG_CNT 64	/* sg element count per scsi cmnd */
50 #define LPFC_DEFAULT_MENLO_SG_SEG_CNT 128	/* sg element count per scsi
51 		cmnd for menlo needs nearly twice as for firmware
52 		downloads using bsg */
53 
54 #define LPFC_DEFAULT_XPSGL_SIZE	256
55 #define LPFC_MAX_SG_TABLESIZE	0xffff
56 #define LPFC_MIN_SG_SLI4_BUF_SZ	0x800	/* based on LPFC_DEFAULT_SG_SEG_CNT */
57 #define LPFC_MAX_BG_SLI4_SEG_CNT_DIF 128 /* sg element count for BlockGuard */
58 #define LPFC_MAX_SG_SEG_CNT_DIF 512	/* sg element count per scsi cmnd  */
59 #define LPFC_MAX_SG_SEG_CNT	4096	/* sg element count per scsi cmnd */
60 #define LPFC_MIN_SG_SEG_CNT	32	/* sg element count per scsi cmnd */
61 #define LPFC_MAX_SGL_SEG_CNT	512	/* SGL element count per scsi cmnd */
62 #define LPFC_MAX_BPL_SEG_CNT	4096	/* BPL element count per scsi cmnd */
63 #define LPFC_MAX_NVME_SEG_CNT	256	/* max SGL element cnt per NVME cmnd */
64 
65 #define LPFC_MAX_SGE_SIZE       0x80000000 /* Maximum data allowed in a SGE */
66 #define LPFC_IOCB_LIST_CNT	2250	/* list of IOCBs for fast-path usage. */
67 #define LPFC_Q_RAMP_UP_INTERVAL 120     /* lun q_depth ramp up interval */
68 #define LPFC_VNAME_LEN		100	/* vport symbolic name length */
69 #define LPFC_TGTQ_RAMPUP_PCENT	5	/* Target queue rampup in percentage */
70 #define LPFC_MIN_TGT_QDEPTH	10
71 #define LPFC_MAX_TGT_QDEPTH	0xFFFF
72 
73 #define  LPFC_MAX_BUCKET_COUNT 20	/* Maximum no. of buckets for stat data
74 					   collection. */
75 /*
76  * Following time intervals are used of adjusting SCSI device
77  * queue depths when there are driver resource error or Firmware
78  * resource error.
79  */
80 /* 1 Second */
81 #define QUEUE_RAMP_DOWN_INTERVAL	(msecs_to_jiffies(1000 * 1))
82 
83 /* Number of exchanges reserved for discovery to complete */
84 #define LPFC_DISC_IOCB_BUFF_COUNT 20
85 
86 #define LPFC_HB_MBOX_INTERVAL   5	/* Heart beat interval in seconds. */
87 #define LPFC_HB_MBOX_TIMEOUT    30	/* Heart beat timeout  in seconds. */
88 
89 /* Error Attention event polling interval */
90 #define LPFC_ERATT_POLL_INTERVAL	5 /* EATT poll interval in seconds */
91 
92 /* Define macros for 64 bit support */
93 #define putPaddrLow(addr)    ((uint32_t) (0xffffffff & (u64)(addr)))
94 #define putPaddrHigh(addr)   ((uint32_t) (0xffffffff & (((u64)(addr))>>32)))
95 #define getPaddr(high, low)  ((dma_addr_t)( \
96 			     (( (u64)(high)<<16 ) << 16)|( (u64)(low))))
97 /* Provide maximum configuration definitions. */
98 #define LPFC_DRVR_TIMEOUT	16	/* driver iocb timeout value in sec */
99 #define FC_MAX_ADPTMSG		64
100 
101 #define MAX_HBAEVT	32
102 #define MAX_HBAS_NO_RESET 16
103 
104 /* Number of MSI-X vectors the driver uses */
105 #define LPFC_MSIX_VECTORS	2
106 
107 /* lpfc wait event data ready flag */
108 #define LPFC_DATA_READY		0	/* bit 0 */
109 
110 /* queue dump line buffer size */
111 #define LPFC_LBUF_SZ		128
112 
113 /* mailbox system shutdown options */
114 #define LPFC_MBX_NO_WAIT	0
115 #define LPFC_MBX_WAIT		1
116 
117 enum lpfc_polling_flags {
118 	ENABLE_FCP_RING_POLLING = 0x1,
119 	DISABLE_FCP_RING_INT    = 0x2
120 };
121 
122 struct perf_prof {
123 	uint16_t cmd_cpu[40];
124 	uint16_t rsp_cpu[40];
125 	uint16_t qh_cpu[40];
126 	uint16_t wqidx[40];
127 };
128 
129 /*
130  * Provide for FC4 TYPE x28 - NVME.  The
131  * bit mask for FCP and NVME is 0x8 identically
132  * because they are 32 bit positions distance.
133  */
134 #define LPFC_FC4_TYPE_BITMASK	0x00000100
135 
136 /* Provide DMA memory definitions the driver uses per port instance. */
137 struct lpfc_dmabuf {
138 	struct list_head list;
139 	void *virt;		/* virtual address ptr */
140 	dma_addr_t phys;	/* mapped address */
141 	uint32_t   buffer_tag;	/* used for tagged queue ring */
142 };
143 
144 struct lpfc_nvmet_ctxbuf {
145 	struct list_head list;
146 	struct lpfc_nvmet_rcv_ctx *context;
147 	struct lpfc_iocbq *iocbq;
148 	struct lpfc_sglq *sglq;
149 	struct work_struct defer_work;
150 };
151 
152 struct lpfc_dma_pool {
153 	struct lpfc_dmabuf   *elements;
154 	uint32_t    max_count;
155 	uint32_t    current_count;
156 };
157 
158 struct hbq_dmabuf {
159 	struct lpfc_dmabuf hbuf;
160 	struct lpfc_dmabuf dbuf;
161 	uint16_t total_size;
162 	uint16_t bytes_recv;
163 	uint32_t tag;
164 	struct lpfc_cq_event cq_event;
165 	unsigned long time_stamp;
166 	void *context;
167 };
168 
169 struct rqb_dmabuf {
170 	struct lpfc_dmabuf hbuf;
171 	struct lpfc_dmabuf dbuf;
172 	uint16_t total_size;
173 	uint16_t bytes_recv;
174 	uint16_t idx;
175 	struct lpfc_queue *hrq;	  /* ptr to associated Header RQ */
176 	struct lpfc_queue *drq;	  /* ptr to associated Data RQ */
177 };
178 
179 /* Priority bit.  Set value to exceed low water mark in lpfc_mem. */
180 #define MEM_PRI		0x100
181 
182 
183 /****************************************************************************/
184 /*      Device VPD save area                                                */
185 /****************************************************************************/
186 typedef struct lpfc_vpd {
187 	uint32_t status;	/* vpd status value */
188 	uint32_t length;	/* number of bytes actually returned */
189 	struct {
190 		uint32_t rsvd1;	/* Revision numbers */
191 		uint32_t biuRev;
192 		uint32_t smRev;
193 		uint32_t smFwRev;
194 		uint32_t endecRev;
195 		uint16_t rBit;
196 		uint8_t fcphHigh;
197 		uint8_t fcphLow;
198 		uint8_t feaLevelHigh;
199 		uint8_t feaLevelLow;
200 		uint32_t postKernRev;
201 		uint32_t opFwRev;
202 		uint8_t opFwName[16];
203 		uint32_t sli1FwRev;
204 		uint8_t sli1FwName[16];
205 		uint32_t sli2FwRev;
206 		uint8_t sli2FwName[16];
207 	} rev;
208 	struct {
209 #ifdef __BIG_ENDIAN_BITFIELD
210 		uint32_t rsvd3  :19;  /* Reserved                             */
211 		uint32_t cdss	: 1;  /* Configure Data Security SLI          */
212 		uint32_t rsvd2	: 3;  /* Reserved                             */
213 		uint32_t cbg	: 1;  /* Configure BlockGuard                 */
214 		uint32_t cmv	: 1;  /* Configure Max VPIs                   */
215 		uint32_t ccrp   : 1;  /* Config Command Ring Polling          */
216 		uint32_t csah   : 1;  /* Configure Synchronous Abort Handling */
217 		uint32_t chbs   : 1;  /* Cofigure Host Backing store          */
218 		uint32_t cinb   : 1;  /* Enable Interrupt Notification Block  */
219 		uint32_t cerbm	: 1;  /* Configure Enhanced Receive Buf Mgmt  */
220 		uint32_t cmx	: 1;  /* Configure Max XRIs                   */
221 		uint32_t cmr	: 1;  /* Configure Max RPIs                   */
222 #else	/*  __LITTLE_ENDIAN */
223 		uint32_t cmr	: 1;  /* Configure Max RPIs                   */
224 		uint32_t cmx	: 1;  /* Configure Max XRIs                   */
225 		uint32_t cerbm	: 1;  /* Configure Enhanced Receive Buf Mgmt  */
226 		uint32_t cinb   : 1;  /* Enable Interrupt Notification Block  */
227 		uint32_t chbs   : 1;  /* Cofigure Host Backing store          */
228 		uint32_t csah   : 1;  /* Configure Synchronous Abort Handling */
229 		uint32_t ccrp   : 1;  /* Config Command Ring Polling          */
230 		uint32_t cmv	: 1;  /* Configure Max VPIs                   */
231 		uint32_t cbg	: 1;  /* Configure BlockGuard                 */
232 		uint32_t rsvd2	: 3;  /* Reserved                             */
233 		uint32_t cdss	: 1;  /* Configure Data Security SLI          */
234 		uint32_t rsvd3  :19;  /* Reserved                             */
235 #endif
236 	} sli3Feat;
237 } lpfc_vpd_t;
238 
239 
240 /*
241  * lpfc stat counters
242  */
243 struct lpfc_stats {
244 	/* Statistics for ELS commands */
245 	uint32_t elsLogiCol;
246 	uint32_t elsRetryExceeded;
247 	uint32_t elsXmitRetry;
248 	uint32_t elsDelayRetry;
249 	uint32_t elsRcvDrop;
250 	uint32_t elsRcvFrame;
251 	uint32_t elsRcvRSCN;
252 	uint32_t elsRcvRNID;
253 	uint32_t elsRcvFARP;
254 	uint32_t elsRcvFARPR;
255 	uint32_t elsRcvFLOGI;
256 	uint32_t elsRcvPLOGI;
257 	uint32_t elsRcvADISC;
258 	uint32_t elsRcvPDISC;
259 	uint32_t elsRcvFAN;
260 	uint32_t elsRcvLOGO;
261 	uint32_t elsRcvPRLO;
262 	uint32_t elsRcvPRLI;
263 	uint32_t elsRcvLIRR;
264 	uint32_t elsRcvRLS;
265 	uint32_t elsRcvRPS;
266 	uint32_t elsRcvRPL;
267 	uint32_t elsRcvRRQ;
268 	uint32_t elsRcvRTV;
269 	uint32_t elsRcvECHO;
270 	uint32_t elsRcvLCB;
271 	uint32_t elsRcvRDP;
272 	uint32_t elsXmitFLOGI;
273 	uint32_t elsXmitFDISC;
274 	uint32_t elsXmitPLOGI;
275 	uint32_t elsXmitPRLI;
276 	uint32_t elsXmitADISC;
277 	uint32_t elsXmitLOGO;
278 	uint32_t elsXmitSCR;
279 	uint32_t elsXmitRSCN;
280 	uint32_t elsXmitRNID;
281 	uint32_t elsXmitFARP;
282 	uint32_t elsXmitFARPR;
283 	uint32_t elsXmitACC;
284 	uint32_t elsXmitLSRJT;
285 
286 	uint32_t frameRcvBcast;
287 	uint32_t frameRcvMulti;
288 	uint32_t strayXmitCmpl;
289 	uint32_t frameXmitDelay;
290 	uint32_t xriCmdCmpl;
291 	uint32_t xriStatErr;
292 	uint32_t LinkUp;
293 	uint32_t LinkDown;
294 	uint32_t LinkMultiEvent;
295 	uint32_t NoRcvBuf;
296 	uint32_t fcpCmd;
297 	uint32_t fcpCmpl;
298 	uint32_t fcpRspErr;
299 	uint32_t fcpRemoteStop;
300 	uint32_t fcpPortRjt;
301 	uint32_t fcpPortBusy;
302 	uint32_t fcpError;
303 	uint32_t fcpLocalErr;
304 };
305 
306 struct lpfc_hba;
307 
308 
309 enum discovery_state {
310 	LPFC_VPORT_UNKNOWN     =  0,    /* vport state is unknown */
311 	LPFC_VPORT_FAILED      =  1,    /* vport has failed */
312 	LPFC_LOCAL_CFG_LINK    =  6,    /* local NPORT Id configured */
313 	LPFC_FLOGI             =  7,    /* FLOGI sent to Fabric */
314 	LPFC_FDISC             =  8,    /* FDISC sent for vport */
315 	LPFC_FABRIC_CFG_LINK   =  9,    /* Fabric assigned NPORT Id
316 				         * configured */
317 	LPFC_NS_REG            =  10,   /* Register with NameServer */
318 	LPFC_NS_QRY            =  11,   /* Query NameServer for NPort ID list */
319 	LPFC_BUILD_DISC_LIST   =  12,   /* Build ADISC and PLOGI lists for
320 				         * device authentication / discovery */
321 	LPFC_DISC_AUTH         =  13,   /* Processing ADISC list */
322 	LPFC_VPORT_READY       =  32,
323 };
324 
325 enum hba_state {
326 	LPFC_LINK_UNKNOWN    =   0,   /* HBA state is unknown */
327 	LPFC_WARM_START      =   1,   /* HBA state after selective reset */
328 	LPFC_INIT_START      =   2,   /* Initial state after board reset */
329 	LPFC_INIT_MBX_CMDS   =   3,   /* Initialize HBA with mbox commands */
330 	LPFC_LINK_DOWN       =   4,   /* HBA initialized, link is down */
331 	LPFC_LINK_UP         =   5,   /* Link is up  - issue READ_LA */
332 	LPFC_CLEAR_LA        =   6,   /* authentication cmplt - issue
333 				       * CLEAR_LA */
334 	LPFC_HBA_READY       =  32,
335 	LPFC_HBA_ERROR       =  -1
336 };
337 
338 struct lpfc_trunk_link_state {
339 	enum hba_state state;
340 	uint8_t fault;
341 };
342 
343 struct lpfc_trunk_link  {
344 	struct lpfc_trunk_link_state link0,
345 				     link1,
346 				     link2,
347 				     link3;
348 };
349 
350 struct lpfc_vport {
351 	struct lpfc_hba *phba;
352 	struct list_head listentry;
353 	uint8_t port_type;
354 #define LPFC_PHYSICAL_PORT 1
355 #define LPFC_NPIV_PORT  2
356 #define LPFC_FABRIC_PORT 3
357 	enum discovery_state port_state;
358 
359 	uint16_t vpi;
360 	uint16_t vfi;
361 	uint8_t vpi_state;
362 #define LPFC_VPI_REGISTERED	0x1
363 
364 	uint32_t fc_flag;	/* FC flags */
365 /* Several of these flags are HBA centric and should be moved to
366  * phba->link_flag (e.g. FC_PTP, FC_PUBLIC_LOOP)
367  */
368 #define FC_PT2PT                0x1	 /* pt2pt with no fabric */
369 #define FC_PT2PT_PLOGI          0x2	 /* pt2pt initiate PLOGI */
370 #define FC_DISC_TMO             0x4	 /* Discovery timer running */
371 #define FC_PUBLIC_LOOP          0x8	 /* Public loop */
372 #define FC_LBIT                 0x10	 /* LOGIN bit in loopinit set */
373 #define FC_RSCN_MODE            0x20	 /* RSCN cmd rcv'ed */
374 #define FC_NLP_MORE             0x40	 /* More node to process in node tbl */
375 #define FC_OFFLINE_MODE         0x80	 /* Interface is offline for diag */
376 #define FC_FABRIC               0x100	 /* We are fabric attached */
377 #define FC_VPORT_LOGO_RCVD      0x200    /* LOGO received on vport */
378 #define FC_RSCN_DISCOVERY       0x400	 /* Auth all devices after RSCN */
379 #define FC_LOGO_RCVD_DID_CHNG   0x800    /* FDISC on phys port detect DID chng*/
380 #define FC_SCSI_SCAN_TMO        0x4000	 /* scsi scan timer running */
381 #define FC_ABORT_DISCOVERY      0x8000	 /* we want to abort discovery */
382 #define FC_NDISC_ACTIVE         0x10000	 /* NPort discovery active */
383 #define FC_BYPASSED_MODE        0x20000	 /* NPort is in bypassed mode */
384 #define FC_VPORT_NEEDS_REG_VPI	0x80000  /* Needs to have its vpi registered */
385 #define FC_RSCN_DEFERRED	0x100000 /* A deferred RSCN being processed */
386 #define FC_VPORT_NEEDS_INIT_VPI 0x200000 /* Need to INIT_VPI before FDISC */
387 #define FC_VPORT_CVL_RCVD	0x400000 /* VLink failed due to CVL	 */
388 #define FC_VFI_REGISTERED	0x800000 /* VFI is registered */
389 #define FC_FDISC_COMPLETED	0x1000000/* FDISC completed */
390 #define FC_DISC_DELAYED		0x2000000/* Delay NPort discovery */
391 
392 	uint32_t ct_flags;
393 #define FC_CT_RFF_ID		0x1	 /* RFF_ID accepted by switch */
394 #define FC_CT_RNN_ID		0x2	 /* RNN_ID accepted by switch */
395 #define FC_CT_RSNN_NN		0x4	 /* RSNN_NN accepted by switch */
396 #define FC_CT_RSPN_ID		0x8	 /* RSPN_ID accepted by switch */
397 #define FC_CT_RFT_ID		0x10	 /* RFT_ID accepted by switch */
398 
399 	struct list_head fc_nodes;
400 
401 	/* Keep counters for the number of entries in each list. */
402 	uint16_t fc_plogi_cnt;
403 	uint16_t fc_adisc_cnt;
404 	uint16_t fc_reglogin_cnt;
405 	uint16_t fc_prli_cnt;
406 	uint16_t fc_unmap_cnt;
407 	uint16_t fc_map_cnt;
408 	uint16_t fc_npr_cnt;
409 	uint16_t fc_unused_cnt;
410 	struct serv_parm fc_sparam;	/* buffer for our service parameters */
411 
412 	uint32_t fc_myDID;	/* fibre channel S_ID */
413 	uint32_t fc_prevDID;	/* previous fibre channel S_ID */
414 	struct lpfc_name fabric_portname;
415 	struct lpfc_name fabric_nodename;
416 
417 	int32_t stopped;   /* HBA has not been restarted since last ERATT */
418 	uint8_t fc_linkspeed;	/* Link speed after last READ_LA */
419 
420 	uint32_t num_disc_nodes;	/* in addition to hba_state */
421 	uint32_t gidft_inp;		/* cnt of outstanding GID_FTs */
422 
423 	uint32_t fc_nlp_cnt;	/* outstanding NODELIST requests */
424 	uint32_t fc_rscn_id_cnt;	/* count of RSCNs payloads in list */
425 	uint32_t fc_rscn_flush;		/* flag use of fc_rscn_id_list */
426 	struct lpfc_dmabuf *fc_rscn_id_list[FC_MAX_HOLD_RSCN];
427 	struct lpfc_name fc_nodename;	/* fc nodename */
428 	struct lpfc_name fc_portname;	/* fc portname */
429 
430 	struct lpfc_work_evt disc_timeout_evt;
431 
432 	struct timer_list fc_disctmo;	/* Discovery rescue timer */
433 	uint8_t fc_ns_retry;	/* retries for fabric nameserver */
434 	uint32_t fc_prli_sent;	/* cntr for outstanding PRLIs */
435 
436 	spinlock_t work_port_lock;
437 	uint32_t work_port_events; /* Timeout to be handled  */
438 #define WORKER_DISC_TMO                0x1	/* vport: Discovery timeout */
439 #define WORKER_ELS_TMO                 0x2	/* vport: ELS timeout */
440 #define WORKER_DELAYED_DISC_TMO        0x8	/* vport: delayed discovery */
441 
442 #define WORKER_MBOX_TMO                0x100	/* hba: MBOX timeout */
443 #define WORKER_HB_TMO                  0x200	/* hba: Heart beat timeout */
444 #define WORKER_FABRIC_BLOCK_TMO        0x400	/* hba: fabric block timeout */
445 #define WORKER_RAMP_DOWN_QUEUE         0x800	/* hba: Decrease Q depth */
446 #define WORKER_RAMP_UP_QUEUE           0x1000	/* hba: Increase Q depth */
447 #define WORKER_SERVICE_TXQ             0x2000	/* hba: IOCBs on the txq */
448 
449 	struct timer_list els_tmofunc;
450 	struct timer_list delayed_disc_tmo;
451 
452 	int unreg_vpi_cmpl;
453 
454 	uint8_t load_flag;
455 #define FC_LOADING		0x1	/* HBA in process of loading drvr */
456 #define FC_UNLOADING		0x2	/* HBA in process of unloading drvr */
457 #define FC_ALLOW_FDMI		0x4	/* port is ready for FDMI requests */
458 	/* Vport Config Parameters */
459 	uint32_t cfg_scan_down;
460 	uint32_t cfg_lun_queue_depth;
461 	uint32_t cfg_nodev_tmo;
462 	uint32_t cfg_devloss_tmo;
463 	uint32_t cfg_restrict_login;
464 	uint32_t cfg_peer_port_login;
465 	uint32_t cfg_fcp_class;
466 	uint32_t cfg_use_adisc;
467 	uint32_t cfg_discovery_threads;
468 	uint32_t cfg_log_verbose;
469 	uint32_t cfg_enable_fc4_type;
470 	uint32_t cfg_max_luns;
471 	uint32_t cfg_enable_da_id;
472 	uint32_t cfg_max_scsicmpl_time;
473 	uint32_t cfg_tgt_queue_depth;
474 	uint32_t cfg_first_burst_size;
475 	uint32_t dev_loss_tmo_changed;
476 
477 	struct fc_vport *fc_vport;
478 
479 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
480 	struct dentry *debug_disc_trc;
481 	struct dentry *debug_nodelist;
482 	struct dentry *debug_nvmestat;
483 	struct dentry *debug_scsistat;
484 	struct dentry *debug_nvmektime;
485 	struct dentry *debug_cpucheck;
486 	struct dentry *vport_debugfs_root;
487 	struct lpfc_debugfs_trc *disc_trc;
488 	atomic_t disc_trc_cnt;
489 #endif
490 	uint8_t stat_data_enabled;
491 	uint8_t stat_data_blocked;
492 	struct list_head rcv_buffer_list;
493 	unsigned long rcv_buffer_time_stamp;
494 	uint32_t vport_flag;
495 #define STATIC_VPORT	1
496 #define FAWWPN_SET	2
497 #define FAWWPN_PARAM_CHG	4
498 
499 	uint16_t fdmi_num_disc;
500 	uint32_t fdmi_hba_mask;
501 	uint32_t fdmi_port_mask;
502 
503 	/* There is a single nvme instance per vport. */
504 	struct nvme_fc_local_port *localport;
505 	uint8_t  nvmei_support; /* driver supports NVME Initiator */
506 	uint32_t last_fcp_wqidx;
507 	uint32_t rcv_flogi_cnt; /* How many unsol FLOGIs ACK'd. */
508 };
509 
510 struct hbq_s {
511 	uint16_t entry_count;	  /* Current number of HBQ slots */
512 	uint16_t buffer_count;	  /* Current number of buffers posted */
513 	uint32_t next_hbqPutIdx;  /* Index to next HBQ slot to use */
514 	uint32_t hbqPutIdx;	  /* HBQ slot to use */
515 	uint32_t local_hbqGetIdx; /* Local copy of Get index from Port */
516 	void    *hbq_virt;	  /* Virtual ptr to this hbq */
517 	struct list_head hbq_buffer_list;  /* buffers assigned to this HBQ */
518 				  /* Callback for HBQ buffer allocation */
519 	struct hbq_dmabuf *(*hbq_alloc_buffer) (struct lpfc_hba *);
520 				  /* Callback for HBQ buffer free */
521 	void               (*hbq_free_buffer) (struct lpfc_hba *,
522 					       struct hbq_dmabuf *);
523 };
524 
525 /* this matches the position in the lpfc_hbq_defs array */
526 #define LPFC_ELS_HBQ	0
527 #define LPFC_MAX_HBQS	1
528 
529 enum hba_temp_state {
530 	HBA_NORMAL_TEMP,
531 	HBA_OVER_TEMP
532 };
533 
534 enum intr_type_t {
535 	NONE = 0,
536 	INTx,
537 	MSI,
538 	MSIX,
539 };
540 
541 #define LPFC_CT_CTX_MAX		64
542 struct unsol_rcv_ct_ctx {
543 	uint32_t ctxt_id;
544 	uint32_t SID;
545 	uint32_t valid;
546 #define UNSOL_INVALID		0
547 #define UNSOL_VALID		1
548 	uint16_t oxid;
549 	uint16_t rxid;
550 };
551 
552 #define LPFC_USER_LINK_SPEED_AUTO	0	/* auto select (default)*/
553 #define LPFC_USER_LINK_SPEED_1G		1	/* 1 Gigabaud */
554 #define LPFC_USER_LINK_SPEED_2G		2	/* 2 Gigabaud */
555 #define LPFC_USER_LINK_SPEED_4G		4	/* 4 Gigabaud */
556 #define LPFC_USER_LINK_SPEED_8G		8	/* 8 Gigabaud */
557 #define LPFC_USER_LINK_SPEED_10G	10	/* 10 Gigabaud */
558 #define LPFC_USER_LINK_SPEED_16G	16	/* 16 Gigabaud */
559 #define LPFC_USER_LINK_SPEED_32G	32	/* 32 Gigabaud */
560 #define LPFC_USER_LINK_SPEED_64G	64	/* 64 Gigabaud */
561 #define LPFC_USER_LINK_SPEED_MAX	LPFC_USER_LINK_SPEED_64G
562 
563 #define LPFC_LINK_SPEED_STRING "0, 1, 2, 4, 8, 10, 16, 32, 64"
564 
565 enum nemb_type {
566 	nemb_mse = 1,
567 	nemb_hbd
568 };
569 
570 enum mbox_type {
571 	mbox_rd = 1,
572 	mbox_wr
573 };
574 
575 enum dma_type {
576 	dma_mbox = 1,
577 	dma_ebuf
578 };
579 
580 enum sta_type {
581 	sta_pre_addr = 1,
582 	sta_pos_addr
583 };
584 
585 struct lpfc_mbox_ext_buf_ctx {
586 	uint32_t state;
587 #define LPFC_BSG_MBOX_IDLE		0
588 #define LPFC_BSG_MBOX_HOST              1
589 #define LPFC_BSG_MBOX_PORT		2
590 #define LPFC_BSG_MBOX_DONE		3
591 #define LPFC_BSG_MBOX_ABTS		4
592 	enum nemb_type nembType;
593 	enum mbox_type mboxType;
594 	uint32_t numBuf;
595 	uint32_t mbxTag;
596 	uint32_t seqNum;
597 	struct lpfc_dmabuf *mbx_dmabuf;
598 	struct list_head ext_dmabuf_list;
599 };
600 
601 struct lpfc_epd_pool {
602 	/* Expedite pool */
603 	struct list_head list;
604 	u32 count;
605 	spinlock_t lock;	/* lock for expedite pool */
606 };
607 
608 struct lpfc_ras_fwlog {
609 	uint8_t *fwlog_buff;
610 	uint32_t fw_buffcount; /* Buffer size posted to FW */
611 #define LPFC_RAS_BUFF_ENTERIES  16      /* Each entry can hold max of 64k */
612 #define LPFC_RAS_MAX_ENTRY_SIZE (64 * 1024)
613 #define LPFC_RAS_MIN_BUFF_POST_SIZE (256 * 1024)
614 #define LPFC_RAS_MAX_BUFF_POST_SIZE (1024 * 1024)
615 	uint32_t fw_loglevel; /* Log level set */
616 	struct lpfc_dmabuf lwpd;
617 	struct list_head fwlog_buff_list;
618 
619 	/* RAS support status on adapter */
620 	bool ras_hwsupport; /* RAS Support available on HW or not */
621 	bool ras_enabled;   /* Ras Enabled for the function */
622 #define LPFC_RAS_DISABLE_LOGGING 0x00
623 #define LPFC_RAS_ENABLE_LOGGING 0x01
624 	bool ras_active;    /* RAS logging running state */
625 };
626 
627 struct lpfc_hba {
628 	/* SCSI interface function jump table entries */
629 	struct lpfc_io_buf * (*lpfc_get_scsi_buf)
630 		(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
631 		struct scsi_cmnd *cmnd);
632 	int (*lpfc_scsi_prep_dma_buf)
633 		(struct lpfc_hba *, struct lpfc_io_buf *);
634 	void (*lpfc_scsi_unprep_dma_buf)
635 		(struct lpfc_hba *, struct lpfc_io_buf *);
636 	void (*lpfc_release_scsi_buf)
637 		(struct lpfc_hba *, struct lpfc_io_buf *);
638 	void (*lpfc_rampdown_queue_depth)
639 		(struct lpfc_hba *);
640 	void (*lpfc_scsi_prep_cmnd)
641 		(struct lpfc_vport *, struct lpfc_io_buf *,
642 		 struct lpfc_nodelist *);
643 
644 	/* IOCB interface function jump table entries */
645 	int (*__lpfc_sli_issue_iocb)
646 		(struct lpfc_hba *, uint32_t,
647 		 struct lpfc_iocbq *, uint32_t);
648 	void (*__lpfc_sli_release_iocbq)(struct lpfc_hba *,
649 			 struct lpfc_iocbq *);
650 	int (*lpfc_hba_down_post)(struct lpfc_hba *phba);
651 	IOCB_t * (*lpfc_get_iocb_from_iocbq)
652 		(struct lpfc_iocbq *);
653 	void (*lpfc_scsi_cmd_iocb_cmpl)
654 		(struct lpfc_hba *, struct lpfc_iocbq *, struct lpfc_iocbq *);
655 
656 	/* MBOX interface function jump table entries */
657 	int (*lpfc_sli_issue_mbox)
658 		(struct lpfc_hba *, LPFC_MBOXQ_t *, uint32_t);
659 
660 	/* Slow-path IOCB process function jump table entries */
661 	void (*lpfc_sli_handle_slow_ring_event)
662 		(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
663 		 uint32_t mask);
664 
665 	/* INIT device interface function jump table entries */
666 	int (*lpfc_sli_hbq_to_firmware)
667 		(struct lpfc_hba *, uint32_t, struct hbq_dmabuf *);
668 	int (*lpfc_sli_brdrestart)
669 		(struct lpfc_hba *);
670 	int (*lpfc_sli_brdready)
671 		(struct lpfc_hba *, uint32_t);
672 	void (*lpfc_handle_eratt)
673 		(struct lpfc_hba *);
674 	void (*lpfc_stop_port)
675 		(struct lpfc_hba *);
676 	int (*lpfc_hba_init_link)
677 		(struct lpfc_hba *, uint32_t);
678 	int (*lpfc_hba_down_link)
679 		(struct lpfc_hba *, uint32_t);
680 	int (*lpfc_selective_reset)
681 		(struct lpfc_hba *);
682 
683 	int (*lpfc_bg_scsi_prep_dma_buf)
684 		(struct lpfc_hba *, struct lpfc_io_buf *);
685 	/* Add new entries here */
686 
687 	/* expedite pool */
688 	struct lpfc_epd_pool epd_pool;
689 
690 	/* SLI4 specific HBA data structure */
691 	struct lpfc_sli4_hba sli4_hba;
692 
693 	struct workqueue_struct *wq;
694 	struct delayed_work     eq_delay_work;
695 
696 	struct lpfc_sli sli;
697 	uint8_t pci_dev_grp;	/* lpfc PCI dev group: 0x0, 0x1, 0x2,... */
698 	uint32_t sli_rev;		/* SLI2, SLI3, or SLI4 */
699 	uint32_t sli3_options;		/* Mask of enabled SLI3 options */
700 #define LPFC_SLI3_HBQ_ENABLED		0x01
701 #define LPFC_SLI3_NPIV_ENABLED		0x02
702 #define LPFC_SLI3_VPORT_TEARDOWN	0x04
703 #define LPFC_SLI3_CRP_ENABLED		0x08
704 #define LPFC_SLI3_BG_ENABLED		0x20
705 #define LPFC_SLI3_DSS_ENABLED		0x40
706 #define LPFC_SLI4_PERFH_ENABLED		0x80
707 #define LPFC_SLI4_PHWQ_ENABLED		0x100
708 	uint32_t iocb_cmd_size;
709 	uint32_t iocb_rsp_size;
710 
711 	struct lpfc_trunk_link  trunk_link;
712 	enum hba_state link_state;
713 	uint32_t link_flag;	/* link state flags */
714 #define LS_LOOPBACK_MODE      0x1	/* NPort is in Loopback mode */
715 					/* This flag is set while issuing */
716 					/* INIT_LINK mailbox command */
717 #define LS_NPIV_FAB_SUPPORTED 0x2	/* Fabric supports NPIV */
718 #define LS_IGNORE_ERATT       0x4	/* intr handler should ignore ERATT */
719 #define LS_MDS_LINK_DOWN      0x8	/* MDS Diagnostics Link Down */
720 #define LS_MDS_LOOPBACK      0x10	/* MDS Diagnostics Link Up (Loopback) */
721 
722 	uint32_t hba_flag;	/* hba generic flags */
723 #define HBA_ERATT_HANDLED	0x1 /* This flag is set when eratt handled */
724 #define DEFER_ERATT		0x2 /* Deferred error attention in progress */
725 #define HBA_FCOE_MODE		0x4 /* HBA function in FCoE Mode */
726 #define HBA_SP_QUEUE_EVT	0x8 /* Slow-path qevt posted to worker thread*/
727 #define HBA_POST_RECEIVE_BUFFER 0x10 /* Rcv buffers need to be posted */
728 #define ELS_XRI_ABORT_EVENT	0x40
729 #define ASYNC_EVENT		0x80
730 #define LINK_DISABLED		0x100 /* Link disabled by user */
731 #define FCF_TS_INPROG           0x200 /* FCF table scan in progress */
732 #define FCF_RR_INPROG           0x400 /* FCF roundrobin flogi in progress */
733 #define HBA_FIP_SUPPORT		0x800 /* FIP support in HBA */
734 #define HBA_AER_ENABLED		0x1000 /* AER enabled with HBA */
735 #define HBA_DEVLOSS_TMO         0x2000 /* HBA in devloss timeout */
736 #define HBA_RRQ_ACTIVE		0x4000 /* process the rrq active list */
737 #define HBA_IOQ_FLUSH		0x8000 /* FCP/NVME I/O queues being flushed */
738 #define HBA_FW_DUMP_OP		0x10000 /* Skips fn reset before FW dump */
739 #define HBA_RECOVERABLE_UE	0x20000 /* Firmware supports recoverable UE */
740 #define HBA_FORCED_LINK_SPEED	0x40000 /*
741 					 * Firmware supports Forced Link Speed
742 					 * capability
743 					 */
744 #define HBA_FLOGI_ISSUED	0x100000 /* FLOGI was issued */
745 
746 	uint32_t fcp_ring_in_use; /* When polling test if intr-hndlr active*/
747 	struct lpfc_dmabuf slim2p;
748 
749 	MAILBOX_t *mbox;
750 	uint32_t *mbox_ext;
751 	struct lpfc_mbox_ext_buf_ctx mbox_ext_buf_ctx;
752 	uint32_t ha_copy;
753 	struct _PCB *pcb;
754 	struct _IOCB *IOCBs;
755 
756 	struct lpfc_dmabuf hbqslimp;
757 
758 	uint16_t pci_cfg_value;
759 
760 	uint8_t fc_linkspeed;	/* Link speed after last READ_LA */
761 
762 	uint32_t fc_eventTag;	/* event tag for link attention */
763 	uint32_t link_events;
764 
765 	/* These fields used to be binfo */
766 	uint32_t fc_pref_DID;	/* preferred D_ID */
767 	uint8_t  fc_pref_ALPA;	/* preferred AL_PA */
768 	uint32_t fc_edtovResol; /* E_D_TOV timer resolution */
769 	uint32_t fc_edtov;	/* E_D_TOV timer value */
770 	uint32_t fc_arbtov;	/* ARB_TOV timer value */
771 	uint32_t fc_ratov;	/* R_A_TOV timer value */
772 	uint32_t fc_rttov;	/* R_T_TOV timer value */
773 	uint32_t fc_altov;	/* AL_TOV timer value */
774 	uint32_t fc_crtov;	/* C_R_TOV timer value */
775 
776 	struct serv_parm fc_fabparam;	/* fabric service parameters buffer */
777 	uint8_t alpa_map[128];	/* AL_PA map from READ_LA */
778 
779 	uint32_t lmt;
780 
781 	uint32_t fc_topology;	/* link topology, from LINK INIT */
782 	uint32_t fc_topology_changed;	/* link topology, from LINK INIT */
783 
784 	struct lpfc_stats fc_stat;
785 
786 	struct lpfc_nodelist fc_fcpnodev; /* nodelist entry for no device */
787 	uint32_t nport_event_cnt;	/* timestamp for nlplist entry */
788 
789 	uint8_t  wwnn[8];
790 	uint8_t  wwpn[8];
791 	uint32_t RandomData[7];
792 	uint8_t  fcp_embed_io;
793 	uint8_t  nvme_support;	/* Firmware supports NVME */
794 	uint8_t  nvmet_support;	/* driver supports NVMET */
795 #define LPFC_NVMET_MAX_PORTS	32
796 	uint8_t  mds_diags_support;
797 	uint8_t  bbcredit_support;
798 	uint8_t  enab_exp_wqcq_pages;
799 	u8	 nsler; /* Firmware supports FC-NVMe-2 SLER */
800 
801 	/* HBA Config Parameters */
802 	uint32_t cfg_ack0;
803 	uint32_t cfg_xri_rebalancing;
804 	uint32_t cfg_xpsgl;
805 	uint32_t cfg_enable_npiv;
806 	uint32_t cfg_enable_rrq;
807 	uint32_t cfg_topology;
808 	uint32_t cfg_link_speed;
809 #define LPFC_FCF_FOV 1		/* Fast fcf failover */
810 #define LPFC_FCF_PRIORITY 2	/* Priority fcf failover */
811 	uint32_t cfg_fcf_failover_policy;
812 	uint32_t cfg_fcp_io_sched;
813 	uint32_t cfg_ns_query;
814 	uint32_t cfg_fcp2_no_tgt_reset;
815 	uint32_t cfg_cr_delay;
816 	uint32_t cfg_cr_count;
817 	uint32_t cfg_multi_ring_support;
818 	uint32_t cfg_multi_ring_rctl;
819 	uint32_t cfg_multi_ring_type;
820 	uint32_t cfg_poll;
821 	uint32_t cfg_poll_tmo;
822 	uint32_t cfg_task_mgmt_tmo;
823 	uint32_t cfg_use_msi;
824 	uint32_t cfg_auto_imax;
825 	uint32_t cfg_fcp_imax;
826 	uint32_t cfg_force_rscn;
827 	uint32_t cfg_cq_poll_threshold;
828 	uint32_t cfg_cq_max_proc_limit;
829 	uint32_t cfg_fcp_cpu_map;
830 	uint32_t cfg_fcp_mq_threshold;
831 	uint32_t cfg_hdw_queue;
832 	uint32_t cfg_irq_chann;
833 	uint32_t cfg_suppress_rsp;
834 	uint32_t cfg_nvme_oas;
835 	uint32_t cfg_nvme_embed_cmd;
836 	uint32_t cfg_nvmet_mrq_post;
837 	uint32_t cfg_nvmet_mrq;
838 	uint32_t cfg_enable_nvmet;
839 	uint32_t cfg_nvme_enable_fb;
840 	uint32_t cfg_nvmet_fb_size;
841 	uint32_t cfg_total_seg_cnt;
842 	uint32_t cfg_sg_seg_cnt;
843 	uint32_t cfg_nvme_seg_cnt;
844 	uint32_t cfg_scsi_seg_cnt;
845 	uint32_t cfg_sg_dma_buf_size;
846 	uint64_t cfg_soft_wwnn;
847 	uint64_t cfg_soft_wwpn;
848 	uint32_t cfg_hba_queue_depth;
849 	uint32_t cfg_enable_hba_reset;
850 	uint32_t cfg_enable_hba_heartbeat;
851 	uint32_t cfg_fof;
852 	uint32_t cfg_EnableXLane;
853 	uint8_t cfg_oas_tgt_wwpn[8];
854 	uint8_t cfg_oas_vpt_wwpn[8];
855 	uint32_t cfg_oas_lun_state;
856 #define OAS_LUN_ENABLE	1
857 #define OAS_LUN_DISABLE	0
858 	uint32_t cfg_oas_lun_status;
859 #define OAS_LUN_STATUS_EXISTS	0x01
860 	uint32_t cfg_oas_flags;
861 #define OAS_FIND_ANY_VPORT	0x01
862 #define OAS_FIND_ANY_TARGET	0x02
863 #define OAS_LUN_VALID	0x04
864 	uint32_t cfg_oas_priority;
865 	uint32_t cfg_XLanePriority;
866 	uint32_t cfg_enable_bg;
867 	uint32_t cfg_prot_mask;
868 	uint32_t cfg_prot_guard;
869 	uint32_t cfg_hostmem_hgp;
870 	uint32_t cfg_log_verbose;
871 	uint32_t cfg_enable_fc4_type;
872 	uint32_t cfg_aer_support;
873 	uint32_t cfg_sriov_nr_virtfn;
874 	uint32_t cfg_request_firmware_upgrade;
875 	uint32_t cfg_iocb_cnt;
876 	uint32_t cfg_suppress_link_up;
877 	uint32_t cfg_rrq_xri_bitmap_sz;
878 	uint32_t cfg_delay_discovery;
879 	uint32_t cfg_sli_mode;
880 #define LPFC_INITIALIZE_LINK              0	/* do normal init_link mbox */
881 #define LPFC_DELAY_INIT_LINK              1	/* layered driver hold off */
882 #define LPFC_DELAY_INIT_LINK_INDEFINITELY 2	/* wait, manual intervention */
883 	uint32_t cfg_enable_dss;
884 	uint32_t cfg_fdmi_on;
885 #define LPFC_FDMI_NO_SUPPORT	0	/* FDMI not supported */
886 #define LPFC_FDMI_SUPPORT	1	/* FDMI supported? */
887 	uint32_t cfg_enable_SmartSAN;
888 	uint32_t cfg_enable_mds_diags;
889 	uint32_t cfg_ras_fwlog_level;
890 	uint32_t cfg_ras_fwlog_buffsize;
891 	uint32_t cfg_ras_fwlog_func;
892 	uint32_t cfg_enable_bbcr;	/* Enable BB Credit Recovery */
893 	uint32_t cfg_enable_dpp;	/* Enable Direct Packet Push */
894 #define LPFC_ENABLE_FCP  1
895 #define LPFC_ENABLE_NVME 2
896 #define LPFC_ENABLE_BOTH 3
897 	uint32_t cfg_enable_pbde;
898 	struct nvmet_fc_target_port *targetport;
899 	lpfc_vpd_t vpd;		/* vital product data */
900 
901 	struct pci_dev *pcidev;
902 	struct list_head      work_list;
903 	uint32_t              work_ha;      /* Host Attention Bits for WT */
904 	uint32_t              work_ha_mask; /* HA Bits owned by WT        */
905 	uint32_t              work_hs;      /* HS stored in case of ERRAT */
906 	uint32_t              work_status[2]; /* Extra status from SLIM */
907 
908 	wait_queue_head_t    work_waitq;
909 	struct task_struct   *worker_thread;
910 	unsigned long data_flags;
911 	uint32_t border_sge_num;
912 
913 	uint32_t hbq_in_use;		/* HBQs in use flag */
914 	uint32_t hbq_count;	        /* Count of configured HBQs */
915 	struct hbq_s hbqs[LPFC_MAX_HBQS]; /* local copy of hbq indicies  */
916 
917 	atomic_t fcp_qidx;         /* next FCP WQ (RR Policy) */
918 	atomic_t nvme_qidx;        /* next NVME WQ (RR Policy) */
919 
920 	phys_addr_t pci_bar0_map;     /* Physical address for PCI BAR0 */
921 	phys_addr_t pci_bar1_map;     /* Physical address for PCI BAR1 */
922 	phys_addr_t pci_bar2_map;     /* Physical address for PCI BAR2 */
923 	void __iomem *slim_memmap_p;	/* Kernel memory mapped address for
924 					   PCI BAR0 */
925 	void __iomem *ctrl_regs_memmap_p;/* Kernel memory mapped address for
926 					    PCI BAR2 */
927 
928 	void __iomem *pci_bar0_memmap_p; /* Kernel memory mapped address for
929 					    PCI BAR0 with dual-ULP support */
930 	void __iomem *pci_bar2_memmap_p; /* Kernel memory mapped address for
931 					    PCI BAR2 with dual-ULP support */
932 	void __iomem *pci_bar4_memmap_p; /* Kernel memory mapped address for
933 					    PCI BAR4 with dual-ULP support */
934 #define PCI_64BIT_BAR0	0
935 #define PCI_64BIT_BAR2	2
936 #define PCI_64BIT_BAR4	4
937 	void __iomem *MBslimaddr;	/* virtual address for mbox cmds */
938 	void __iomem *HAregaddr;	/* virtual address for host attn reg */
939 	void __iomem *CAregaddr;	/* virtual address for chip attn reg */
940 	void __iomem *HSregaddr;	/* virtual address for host status
941 					   reg */
942 	void __iomem *HCregaddr;	/* virtual address for host ctl reg */
943 
944 	struct lpfc_hgp __iomem *host_gp; /* Host side get/put pointers */
945 	struct lpfc_pgp   *port_gp;
946 	uint32_t __iomem  *hbq_put;     /* Address in SLIM to HBQ put ptrs */
947 	uint32_t          *hbq_get;     /* Host mem address of HBQ get ptrs */
948 
949 	int brd_no;			/* FC board number */
950 	char SerialNumber[32];		/* adapter Serial Number */
951 	char OptionROMVersion[32];	/* adapter BIOS / Fcode version */
952 	char BIOSVersion[16];		/* Boot BIOS version */
953 	char ModelDesc[256];		/* Model Description */
954 	char ModelName[80];		/* Model Name */
955 	char ProgramType[256];		/* Program Type */
956 	char Port[20];			/* Port No */
957 	uint8_t vpd_flag;               /* VPD data flag */
958 
959 #define VPD_MODEL_DESC      0x1         /* valid vpd model description */
960 #define VPD_MODEL_NAME      0x2         /* valid vpd model name */
961 #define VPD_PROGRAM_TYPE    0x4         /* valid vpd program type */
962 #define VPD_PORT            0x8         /* valid vpd port data */
963 #define VPD_MASK            0xf         /* mask for any vpd data */
964 
965 	uint8_t soft_wwn_enable;
966 
967 	struct timer_list fcp_poll_timer;
968 	struct timer_list eratt_poll;
969 	uint32_t eratt_poll_interval;
970 
971 	uint64_t bg_guard_err_cnt;
972 	uint64_t bg_apptag_err_cnt;
973 	uint64_t bg_reftag_err_cnt;
974 
975 	/* fastpath list. */
976 	spinlock_t scsi_buf_list_get_lock;  /* SCSI buf alloc list lock */
977 	spinlock_t scsi_buf_list_put_lock;  /* SCSI buf free list lock */
978 	struct list_head lpfc_scsi_buf_list_get;
979 	struct list_head lpfc_scsi_buf_list_put;
980 	uint32_t total_scsi_bufs;
981 	struct list_head lpfc_iocb_list;
982 	uint32_t total_iocbq_bufs;
983 	struct list_head active_rrq_list;
984 	spinlock_t hbalock;
985 
986 	/* dma_mem_pools */
987 	struct dma_pool *lpfc_sg_dma_buf_pool;
988 	struct dma_pool *lpfc_mbuf_pool;
989 	struct dma_pool *lpfc_hrb_pool;	/* header receive buffer pool */
990 	struct dma_pool *lpfc_drb_pool; /* data receive buffer pool */
991 	struct dma_pool *lpfc_nvmet_drb_pool; /* data receive buffer pool */
992 	struct dma_pool *lpfc_hbq_pool;	/* SLI3 hbq buffer pool */
993 	struct dma_pool *txrdy_payload_pool;
994 	struct dma_pool *lpfc_cmd_rsp_buf_pool;
995 	struct lpfc_dma_pool lpfc_mbuf_safety_pool;
996 
997 	mempool_t *mbox_mem_pool;
998 	mempool_t *nlp_mem_pool;
999 	mempool_t *rrq_pool;
1000 	mempool_t *active_rrq_pool;
1001 
1002 	struct fc_host_statistics link_stats;
1003 	enum intr_type_t intr_type;
1004 	uint32_t intr_mode;
1005 #define LPFC_INTR_ERROR	0xFFFFFFFF
1006 	struct list_head port_list;
1007 	spinlock_t port_list_lock;	/* lock for port_list mutations */
1008 	struct lpfc_vport *pport;	/* physical lpfc_vport pointer */
1009 	uint16_t max_vpi;		/* Maximum virtual nports */
1010 #define LPFC_MAX_VPI	0xFF		/* Max number VPI supported 0 - 0xff */
1011 #define LPFC_MAX_VPORTS	0x100		/* Max vports per port, with pport */
1012 	uint16_t max_vports;            /*
1013 					 * For IOV HBAs max_vpi can change
1014 					 * after a reset. max_vports is max
1015 					 * number of vports present. This can
1016 					 * be greater than max_vpi.
1017 					 */
1018 	uint16_t vpi_base;
1019 	uint16_t vfi_base;
1020 	unsigned long *vpi_bmask;	/* vpi allocation table */
1021 	uint16_t *vpi_ids;
1022 	uint16_t vpi_count;
1023 	struct list_head lpfc_vpi_blk_list;
1024 
1025 	/* Data structure used by fabric iocb scheduler */
1026 	struct list_head fabric_iocb_list;
1027 	atomic_t fabric_iocb_count;
1028 	struct timer_list fabric_block_timer;
1029 	unsigned long bit_flags;
1030 #define	FABRIC_COMANDS_BLOCKED	0
1031 	atomic_t num_rsrc_err;
1032 	atomic_t num_cmd_success;
1033 	unsigned long last_rsrc_error_time;
1034 	unsigned long last_ramp_down_time;
1035 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
1036 	struct dentry *hba_debugfs_root;
1037 	atomic_t debugfs_vport_count;
1038 	struct dentry *debug_multixri_pools;
1039 	struct dentry *debug_hbqinfo;
1040 	struct dentry *debug_dumpHostSlim;
1041 	struct dentry *debug_dumpHBASlim;
1042 	struct dentry *debug_InjErrLBA;  /* LBA to inject errors at */
1043 	struct dentry *debug_InjErrNPortID;  /* NPortID to inject errors at */
1044 	struct dentry *debug_InjErrWWPN;  /* WWPN to inject errors at */
1045 	struct dentry *debug_writeGuard; /* inject write guard_tag errors */
1046 	struct dentry *debug_writeApp;   /* inject write app_tag errors */
1047 	struct dentry *debug_writeRef;   /* inject write ref_tag errors */
1048 	struct dentry *debug_readGuard;  /* inject read guard_tag errors */
1049 	struct dentry *debug_readApp;    /* inject read app_tag errors */
1050 	struct dentry *debug_readRef;    /* inject read ref_tag errors */
1051 
1052 	struct dentry *debug_nvmeio_trc;
1053 	struct lpfc_debugfs_nvmeio_trc *nvmeio_trc;
1054 	struct dentry *debug_hdwqinfo;
1055 #ifdef LPFC_HDWQ_LOCK_STAT
1056 	struct dentry *debug_lockstat;
1057 #endif
1058 	atomic_t nvmeio_trc_cnt;
1059 	uint32_t nvmeio_trc_size;
1060 	uint32_t nvmeio_trc_output_idx;
1061 
1062 	/* T10 DIF error injection */
1063 	uint32_t lpfc_injerr_wgrd_cnt;
1064 	uint32_t lpfc_injerr_wapp_cnt;
1065 	uint32_t lpfc_injerr_wref_cnt;
1066 	uint32_t lpfc_injerr_rgrd_cnt;
1067 	uint32_t lpfc_injerr_rapp_cnt;
1068 	uint32_t lpfc_injerr_rref_cnt;
1069 	uint32_t lpfc_injerr_nportid;
1070 	struct lpfc_name lpfc_injerr_wwpn;
1071 	sector_t lpfc_injerr_lba;
1072 #define LPFC_INJERR_LBA_OFF	(sector_t)(-1)
1073 
1074 	struct dentry *debug_slow_ring_trc;
1075 	struct lpfc_debugfs_trc *slow_ring_trc;
1076 	atomic_t slow_ring_trc_cnt;
1077 	/* iDiag debugfs sub-directory */
1078 	struct dentry *idiag_root;
1079 	struct dentry *idiag_pci_cfg;
1080 	struct dentry *idiag_bar_acc;
1081 	struct dentry *idiag_que_info;
1082 	struct dentry *idiag_que_acc;
1083 	struct dentry *idiag_drb_acc;
1084 	struct dentry *idiag_ctl_acc;
1085 	struct dentry *idiag_mbx_acc;
1086 	struct dentry *idiag_ext_acc;
1087 	uint8_t lpfc_idiag_last_eq;
1088 #endif
1089 	uint16_t nvmeio_trc_on;
1090 
1091 	/* Used for deferred freeing of ELS data buffers */
1092 	struct list_head elsbuf;
1093 	int elsbuf_cnt;
1094 	int elsbuf_prev_cnt;
1095 
1096 	uint8_t temp_sensor_support;
1097 	/* Fields used for heart beat. */
1098 	unsigned long last_completion_time;
1099 	unsigned long skipped_hb;
1100 	struct timer_list hb_tmofunc;
1101 	uint8_t hb_outstanding;
1102 	struct timer_list rrq_tmr;
1103 	enum hba_temp_state over_temp_state;
1104 	/* ndlp reference management */
1105 	spinlock_t ndlp_lock;
1106 	/*
1107 	 * Following bit will be set for all buffer tags which are not
1108 	 * associated with any HBQ.
1109 	 */
1110 #define QUE_BUFTAG_BIT  (1<<31)
1111 	uint32_t buffer_tag_count;
1112 	int wait_4_mlo_maint_flg;
1113 	wait_queue_head_t wait_4_mlo_m_q;
1114 	/* data structure used for latency data collection */
1115 #define LPFC_NO_BUCKET	   0
1116 #define LPFC_LINEAR_BUCKET 1
1117 #define LPFC_POWER2_BUCKET 2
1118 	uint8_t  bucket_type;
1119 	uint32_t bucket_base;
1120 	uint32_t bucket_step;
1121 
1122 /* Maximum number of events that can be outstanding at any time*/
1123 #define LPFC_MAX_EVT_COUNT 512
1124 	atomic_t fast_event_count;
1125 	uint32_t fcoe_eventtag;
1126 	uint32_t fcoe_eventtag_at_fcf_scan;
1127 	uint32_t fcoe_cvl_eventtag;
1128 	uint32_t fcoe_cvl_eventtag_attn;
1129 	struct lpfc_fcf fcf;
1130 	uint8_t fc_map[3];
1131 	uint8_t valid_vlan;
1132 	uint16_t vlan_id;
1133 	struct list_head fcf_conn_rec_list;
1134 
1135 	bool defer_flogi_acc_flag;
1136 	uint16_t defer_flogi_acc_rx_id;
1137 	uint16_t defer_flogi_acc_ox_id;
1138 
1139 	spinlock_t ct_ev_lock; /* synchronize access to ct_ev_waiters */
1140 	struct list_head ct_ev_waiters;
1141 	struct unsol_rcv_ct_ctx ct_ctx[LPFC_CT_CTX_MAX];
1142 	uint32_t ctx_idx;
1143 
1144 	/* RAS Support */
1145 	struct lpfc_ras_fwlog ras_fwlog;
1146 
1147 	uint8_t menlo_flag;	/* menlo generic flags */
1148 #define HBA_MENLO_SUPPORT	0x1 /* HBA supports menlo commands */
1149 	uint32_t iocb_cnt;
1150 	uint32_t iocb_max;
1151 	atomic_t sdev_cnt;
1152 	uint8_t fips_spec_rev;
1153 	uint8_t fips_level;
1154 	spinlock_t devicelock;	/* lock for luns list */
1155 	mempool_t *device_data_mem_pool;
1156 	struct list_head luns;
1157 #define LPFC_TRANSGRESSION_HIGH_TEMPERATURE	0x0080
1158 #define LPFC_TRANSGRESSION_LOW_TEMPERATURE	0x0040
1159 #define LPFC_TRANSGRESSION_HIGH_VOLTAGE		0x0020
1160 #define LPFC_TRANSGRESSION_LOW_VOLTAGE		0x0010
1161 #define LPFC_TRANSGRESSION_HIGH_TXBIAS		0x0008
1162 #define LPFC_TRANSGRESSION_LOW_TXBIAS		0x0004
1163 #define LPFC_TRANSGRESSION_HIGH_TXPOWER		0x0002
1164 #define LPFC_TRANSGRESSION_LOW_TXPOWER		0x0001
1165 #define LPFC_TRANSGRESSION_HIGH_RXPOWER		0x8000
1166 #define LPFC_TRANSGRESSION_LOW_RXPOWER		0x4000
1167 	uint16_t sfp_alarm;
1168 	uint16_t sfp_warning;
1169 
1170 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
1171 	uint16_t cpucheck_on;
1172 #define LPFC_CHECK_OFF		0
1173 #define LPFC_CHECK_NVME_IO	1
1174 #define LPFC_CHECK_NVMET_RCV	2
1175 #define LPFC_CHECK_NVMET_IO	4
1176 #define LPFC_CHECK_SCSI_IO	8
1177 	uint16_t ktime_on;
1178 	uint64_t ktime_data_samples;
1179 	uint64_t ktime_status_samples;
1180 	uint64_t ktime_last_cmd;
1181 	uint64_t ktime_seg1_total;
1182 	uint64_t ktime_seg1_min;
1183 	uint64_t ktime_seg1_max;
1184 	uint64_t ktime_seg2_total;
1185 	uint64_t ktime_seg2_min;
1186 	uint64_t ktime_seg2_max;
1187 	uint64_t ktime_seg3_total;
1188 	uint64_t ktime_seg3_min;
1189 	uint64_t ktime_seg3_max;
1190 	uint64_t ktime_seg4_total;
1191 	uint64_t ktime_seg4_min;
1192 	uint64_t ktime_seg4_max;
1193 	uint64_t ktime_seg5_total;
1194 	uint64_t ktime_seg5_min;
1195 	uint64_t ktime_seg5_max;
1196 	uint64_t ktime_seg6_total;
1197 	uint64_t ktime_seg6_min;
1198 	uint64_t ktime_seg6_max;
1199 	uint64_t ktime_seg7_total;
1200 	uint64_t ktime_seg7_min;
1201 	uint64_t ktime_seg7_max;
1202 	uint64_t ktime_seg8_total;
1203 	uint64_t ktime_seg8_min;
1204 	uint64_t ktime_seg8_max;
1205 	uint64_t ktime_seg9_total;
1206 	uint64_t ktime_seg9_min;
1207 	uint64_t ktime_seg9_max;
1208 	uint64_t ktime_seg10_total;
1209 	uint64_t ktime_seg10_min;
1210 	uint64_t ktime_seg10_max;
1211 #endif
1212 };
1213 
1214 static inline struct Scsi_Host *
1215 lpfc_shost_from_vport(struct lpfc_vport *vport)
1216 {
1217 	return container_of((void *) vport, struct Scsi_Host, hostdata[0]);
1218 }
1219 
1220 static inline void
1221 lpfc_set_loopback_flag(struct lpfc_hba *phba)
1222 {
1223 	if (phba->cfg_topology == FLAGS_LOCAL_LB)
1224 		phba->link_flag |= LS_LOOPBACK_MODE;
1225 	else
1226 		phba->link_flag &= ~LS_LOOPBACK_MODE;
1227 }
1228 
1229 static inline int
1230 lpfc_is_link_up(struct lpfc_hba *phba)
1231 {
1232 	return  phba->link_state == LPFC_LINK_UP ||
1233 		phba->link_state == LPFC_CLEAR_LA ||
1234 		phba->link_state == LPFC_HBA_READY;
1235 }
1236 
1237 static inline void
1238 lpfc_worker_wake_up(struct lpfc_hba *phba)
1239 {
1240 	/* Set the lpfc data pending flag */
1241 	set_bit(LPFC_DATA_READY, &phba->data_flags);
1242 
1243 	/* Wake up worker thread */
1244 	wake_up(&phba->work_waitq);
1245 	return;
1246 }
1247 
1248 static inline int
1249 lpfc_readl(void __iomem *addr, uint32_t *data)
1250 {
1251 	uint32_t temp;
1252 	temp = readl(addr);
1253 	if (temp == 0xffffffff)
1254 		return -EIO;
1255 	*data = temp;
1256 	return 0;
1257 }
1258 
1259 static inline int
1260 lpfc_sli_read_hs(struct lpfc_hba *phba)
1261 {
1262 	/*
1263 	 * There was a link/board error. Read the status register to retrieve
1264 	 * the error event and process it.
1265 	 */
1266 	phba->sli.slistat.err_attn_event++;
1267 
1268 	/* Save status info and check for unplug error */
1269 	if (lpfc_readl(phba->HSregaddr, &phba->work_hs) ||
1270 		lpfc_readl(phba->MBslimaddr + 0xa8, &phba->work_status[0]) ||
1271 		lpfc_readl(phba->MBslimaddr + 0xac, &phba->work_status[1])) {
1272 		return -EIO;
1273 	}
1274 
1275 	/* Clear chip Host Attention error bit */
1276 	writel(HA_ERATT, phba->HAregaddr);
1277 	readl(phba->HAregaddr); /* flush */
1278 	phba->pport->stopped = 1;
1279 
1280 	return 0;
1281 }
1282 
1283 static inline struct lpfc_sli_ring *
1284 lpfc_phba_elsring(struct lpfc_hba *phba)
1285 {
1286 	/* Return NULL if sli_rev has become invalid due to bad fw */
1287 	if (phba->sli_rev != LPFC_SLI_REV4  &&
1288 	    phba->sli_rev != LPFC_SLI_REV3  &&
1289 	    phba->sli_rev != LPFC_SLI_REV2)
1290 		return NULL;
1291 
1292 	if (phba->sli_rev == LPFC_SLI_REV4) {
1293 		if (phba->sli4_hba.els_wq)
1294 			return phba->sli4_hba.els_wq->pring;
1295 		else
1296 			return NULL;
1297 	}
1298 	return &phba->sli.sli3_ring[LPFC_ELS_RING];
1299 }
1300 
1301 /**
1302  * lpfc_sli4_mod_hba_eq_delay - update EQ delay
1303  * @phba: Pointer to HBA context object.
1304  * @q: The Event Queue to update.
1305  * @delay: The delay value (in us) to be written.
1306  *
1307  **/
1308 static inline void
1309 lpfc_sli4_mod_hba_eq_delay(struct lpfc_hba *phba, struct lpfc_queue *eq,
1310 			   u32 delay)
1311 {
1312 	struct lpfc_register reg_data;
1313 
1314 	reg_data.word0 = 0;
1315 	bf_set(lpfc_sliport_eqdelay_id, &reg_data, eq->queue_id);
1316 	bf_set(lpfc_sliport_eqdelay_delay, &reg_data, delay);
1317 	writel(reg_data.word0, phba->sli4_hba.u.if_type2.EQDregaddr);
1318 	eq->q_mode = delay;
1319 }
1320