xref: /openbmc/linux/drivers/scsi/lpfc/lpfc.h (revision 6abeae2a)
1 /*******************************************************************
2  * This file is part of the Emulex Linux Device Driver for         *
3  * Fibre Channel Host Bus Adapters.                                *
4  * Copyright (C) 2017-2020 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_async_xchg_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  :20;  /* Reserved                             */
211 		uint32_t rsvd2	: 3;  /* Reserved                             */
212 		uint32_t cbg	: 1;  /* Configure BlockGuard                 */
213 		uint32_t cmv	: 1;  /* Configure Max VPIs                   */
214 		uint32_t ccrp   : 1;  /* Config Command Ring Polling          */
215 		uint32_t csah   : 1;  /* Configure Synchronous Abort Handling */
216 		uint32_t chbs   : 1;  /* Cofigure Host Backing store          */
217 		uint32_t cinb   : 1;  /* Enable Interrupt Notification Block  */
218 		uint32_t cerbm	: 1;  /* Configure Enhanced Receive Buf Mgmt  */
219 		uint32_t cmx	: 1;  /* Configure Max XRIs                   */
220 		uint32_t cmr	: 1;  /* Configure Max RPIs                   */
221 #else	/*  __LITTLE_ENDIAN */
222 		uint32_t cmr	: 1;  /* Configure Max RPIs                   */
223 		uint32_t cmx	: 1;  /* Configure Max XRIs                   */
224 		uint32_t cerbm	: 1;  /* Configure Enhanced Receive Buf Mgmt  */
225 		uint32_t cinb   : 1;  /* Enable Interrupt Notification Block  */
226 		uint32_t chbs   : 1;  /* Cofigure Host Backing store          */
227 		uint32_t csah   : 1;  /* Configure Synchronous Abort Handling */
228 		uint32_t ccrp   : 1;  /* Config Command Ring Polling          */
229 		uint32_t cmv	: 1;  /* Configure Max VPIs                   */
230 		uint32_t cbg	: 1;  /* Configure BlockGuard                 */
231 		uint32_t rsvd2	: 3;  /* Reserved                             */
232 		uint32_t rsvd3  :20;  /* Reserved                             */
233 #endif
234 	} sli3Feat;
235 } lpfc_vpd_t;
236 
237 
238 /*
239  * lpfc stat counters
240  */
241 struct lpfc_stats {
242 	/* Statistics for ELS commands */
243 	uint32_t elsLogiCol;
244 	uint32_t elsRetryExceeded;
245 	uint32_t elsXmitRetry;
246 	uint32_t elsDelayRetry;
247 	uint32_t elsRcvDrop;
248 	uint32_t elsRcvFrame;
249 	uint32_t elsRcvRSCN;
250 	uint32_t elsRcvRNID;
251 	uint32_t elsRcvFARP;
252 	uint32_t elsRcvFARPR;
253 	uint32_t elsRcvFLOGI;
254 	uint32_t elsRcvPLOGI;
255 	uint32_t elsRcvADISC;
256 	uint32_t elsRcvPDISC;
257 	uint32_t elsRcvFAN;
258 	uint32_t elsRcvLOGO;
259 	uint32_t elsRcvPRLO;
260 	uint32_t elsRcvPRLI;
261 	uint32_t elsRcvLIRR;
262 	uint32_t elsRcvRLS;
263 	uint32_t elsRcvRPL;
264 	uint32_t elsRcvRRQ;
265 	uint32_t elsRcvRTV;
266 	uint32_t elsRcvECHO;
267 	uint32_t elsRcvLCB;
268 	uint32_t elsRcvRDP;
269 	uint32_t elsXmitFLOGI;
270 	uint32_t elsXmitFDISC;
271 	uint32_t elsXmitPLOGI;
272 	uint32_t elsXmitPRLI;
273 	uint32_t elsXmitADISC;
274 	uint32_t elsXmitLOGO;
275 	uint32_t elsXmitSCR;
276 	uint32_t elsXmitRSCN;
277 	uint32_t elsXmitRNID;
278 	uint32_t elsXmitFARP;
279 	uint32_t elsXmitFARPR;
280 	uint32_t elsXmitACC;
281 	uint32_t elsXmitLSRJT;
282 
283 	uint32_t frameRcvBcast;
284 	uint32_t frameRcvMulti;
285 	uint32_t strayXmitCmpl;
286 	uint32_t frameXmitDelay;
287 	uint32_t xriCmdCmpl;
288 	uint32_t xriStatErr;
289 	uint32_t LinkUp;
290 	uint32_t LinkDown;
291 	uint32_t LinkMultiEvent;
292 	uint32_t NoRcvBuf;
293 	uint32_t fcpCmd;
294 	uint32_t fcpCmpl;
295 	uint32_t fcpRspErr;
296 	uint32_t fcpRemoteStop;
297 	uint32_t fcpPortRjt;
298 	uint32_t fcpPortBusy;
299 	uint32_t fcpError;
300 	uint32_t fcpLocalErr;
301 };
302 
303 struct lpfc_hba;
304 
305 
306 enum discovery_state {
307 	LPFC_VPORT_UNKNOWN     =  0,    /* vport state is unknown */
308 	LPFC_VPORT_FAILED      =  1,    /* vport has failed */
309 	LPFC_LOCAL_CFG_LINK    =  6,    /* local NPORT Id configured */
310 	LPFC_FLOGI             =  7,    /* FLOGI sent to Fabric */
311 	LPFC_FDISC             =  8,    /* FDISC sent for vport */
312 	LPFC_FABRIC_CFG_LINK   =  9,    /* Fabric assigned NPORT Id
313 				         * configured */
314 	LPFC_NS_REG            =  10,   /* Register with NameServer */
315 	LPFC_NS_QRY            =  11,   /* Query NameServer for NPort ID list */
316 	LPFC_BUILD_DISC_LIST   =  12,   /* Build ADISC and PLOGI lists for
317 				         * device authentication / discovery */
318 	LPFC_DISC_AUTH         =  13,   /* Processing ADISC list */
319 	LPFC_VPORT_READY       =  32,
320 };
321 
322 enum hba_state {
323 	LPFC_LINK_UNKNOWN    =   0,   /* HBA state is unknown */
324 	LPFC_WARM_START      =   1,   /* HBA state after selective reset */
325 	LPFC_INIT_START      =   2,   /* Initial state after board reset */
326 	LPFC_INIT_MBX_CMDS   =   3,   /* Initialize HBA with mbox commands */
327 	LPFC_LINK_DOWN       =   4,   /* HBA initialized, link is down */
328 	LPFC_LINK_UP         =   5,   /* Link is up  - issue READ_LA */
329 	LPFC_CLEAR_LA        =   6,   /* authentication cmplt - issue
330 				       * CLEAR_LA */
331 	LPFC_HBA_READY       =  32,
332 	LPFC_HBA_ERROR       =  -1
333 };
334 
335 struct lpfc_trunk_link_state {
336 	enum hba_state state;
337 	uint8_t fault;
338 };
339 
340 struct lpfc_trunk_link  {
341 	struct lpfc_trunk_link_state link0,
342 				     link1,
343 				     link2,
344 				     link3;
345 };
346 
347 struct lpfc_vport {
348 	struct lpfc_hba *phba;
349 	struct list_head listentry;
350 	uint8_t port_type;
351 #define LPFC_PHYSICAL_PORT 1
352 #define LPFC_NPIV_PORT  2
353 #define LPFC_FABRIC_PORT 3
354 	enum discovery_state port_state;
355 
356 	uint16_t vpi;
357 	uint16_t vfi;
358 	uint8_t vpi_state;
359 #define LPFC_VPI_REGISTERED	0x1
360 
361 	uint32_t fc_flag;	/* FC flags */
362 /* Several of these flags are HBA centric and should be moved to
363  * phba->link_flag (e.g. FC_PTP, FC_PUBLIC_LOOP)
364  */
365 #define FC_PT2PT                0x1	 /* pt2pt with no fabric */
366 #define FC_PT2PT_PLOGI          0x2	 /* pt2pt initiate PLOGI */
367 #define FC_DISC_TMO             0x4	 /* Discovery timer running */
368 #define FC_PUBLIC_LOOP          0x8	 /* Public loop */
369 #define FC_LBIT                 0x10	 /* LOGIN bit in loopinit set */
370 #define FC_RSCN_MODE            0x20	 /* RSCN cmd rcv'ed */
371 #define FC_NLP_MORE             0x40	 /* More node to process in node tbl */
372 #define FC_OFFLINE_MODE         0x80	 /* Interface is offline for diag */
373 #define FC_FABRIC               0x100	 /* We are fabric attached */
374 #define FC_VPORT_LOGO_RCVD      0x200    /* LOGO received on vport */
375 #define FC_RSCN_DISCOVERY       0x400	 /* Auth all devices after RSCN */
376 #define FC_LOGO_RCVD_DID_CHNG   0x800    /* FDISC on phys port detect DID chng*/
377 #define FC_SCSI_SCAN_TMO        0x4000	 /* scsi scan timer running */
378 #define FC_ABORT_DISCOVERY      0x8000	 /* we want to abort discovery */
379 #define FC_NDISC_ACTIVE         0x10000	 /* NPort discovery active */
380 #define FC_BYPASSED_MODE        0x20000	 /* NPort is in bypassed mode */
381 #define FC_VPORT_NEEDS_REG_VPI	0x80000  /* Needs to have its vpi registered */
382 #define FC_RSCN_DEFERRED	0x100000 /* A deferred RSCN being processed */
383 #define FC_VPORT_NEEDS_INIT_VPI 0x200000 /* Need to INIT_VPI before FDISC */
384 #define FC_VPORT_CVL_RCVD	0x400000 /* VLink failed due to CVL	 */
385 #define FC_VFI_REGISTERED	0x800000 /* VFI is registered */
386 #define FC_FDISC_COMPLETED	0x1000000/* FDISC completed */
387 #define FC_DISC_DELAYED		0x2000000/* Delay NPort discovery */
388 
389 	uint32_t ct_flags;
390 #define FC_CT_RFF_ID		0x1	 /* RFF_ID accepted by switch */
391 #define FC_CT_RNN_ID		0x2	 /* RNN_ID accepted by switch */
392 #define FC_CT_RSNN_NN		0x4	 /* RSNN_NN accepted by switch */
393 #define FC_CT_RSPN_ID		0x8	 /* RSPN_ID accepted by switch */
394 #define FC_CT_RFT_ID		0x10	 /* RFT_ID accepted by switch */
395 
396 	struct list_head fc_nodes;
397 
398 	/* Keep counters for the number of entries in each list. */
399 	uint16_t fc_plogi_cnt;
400 	uint16_t fc_adisc_cnt;
401 	uint16_t fc_reglogin_cnt;
402 	uint16_t fc_prli_cnt;
403 	uint16_t fc_unmap_cnt;
404 	uint16_t fc_map_cnt;
405 	uint16_t fc_npr_cnt;
406 	uint16_t fc_unused_cnt;
407 	struct serv_parm fc_sparam;	/* buffer for our service parameters */
408 
409 	uint32_t fc_myDID;	/* fibre channel S_ID */
410 	uint32_t fc_prevDID;	/* previous fibre channel S_ID */
411 	struct lpfc_name fabric_portname;
412 	struct lpfc_name fabric_nodename;
413 
414 	int32_t stopped;   /* HBA has not been restarted since last ERATT */
415 	uint8_t fc_linkspeed;	/* Link speed after last READ_LA */
416 
417 	uint32_t num_disc_nodes;	/* in addition to hba_state */
418 	uint32_t gidft_inp;		/* cnt of outstanding GID_FTs */
419 
420 	uint32_t fc_nlp_cnt;	/* outstanding NODELIST requests */
421 	uint32_t fc_rscn_id_cnt;	/* count of RSCNs payloads in list */
422 	uint32_t fc_rscn_flush;		/* flag use of fc_rscn_id_list */
423 	struct lpfc_dmabuf *fc_rscn_id_list[FC_MAX_HOLD_RSCN];
424 	struct lpfc_name fc_nodename;	/* fc nodename */
425 	struct lpfc_name fc_portname;	/* fc portname */
426 
427 	struct lpfc_work_evt disc_timeout_evt;
428 
429 	struct timer_list fc_disctmo;	/* Discovery rescue timer */
430 	uint8_t fc_ns_retry;	/* retries for fabric nameserver */
431 	uint32_t fc_prli_sent;	/* cntr for outstanding PRLIs */
432 
433 	spinlock_t work_port_lock;
434 	uint32_t work_port_events; /* Timeout to be handled  */
435 #define WORKER_DISC_TMO                0x1	/* vport: Discovery timeout */
436 #define WORKER_ELS_TMO                 0x2	/* vport: ELS timeout */
437 #define WORKER_DELAYED_DISC_TMO        0x8	/* vport: delayed discovery */
438 
439 #define WORKER_MBOX_TMO                0x100	/* hba: MBOX timeout */
440 #define WORKER_HB_TMO                  0x200	/* hba: Heart beat timeout */
441 #define WORKER_FABRIC_BLOCK_TMO        0x400	/* hba: fabric block timeout */
442 #define WORKER_RAMP_DOWN_QUEUE         0x800	/* hba: Decrease Q depth */
443 #define WORKER_RAMP_UP_QUEUE           0x1000	/* hba: Increase Q depth */
444 #define WORKER_SERVICE_TXQ             0x2000	/* hba: IOCBs on the txq */
445 
446 	struct timer_list els_tmofunc;
447 	struct timer_list delayed_disc_tmo;
448 
449 	int unreg_vpi_cmpl;
450 
451 	uint8_t load_flag;
452 #define FC_LOADING		0x1	/* HBA in process of loading drvr */
453 #define FC_UNLOADING		0x2	/* HBA in process of unloading drvr */
454 #define FC_ALLOW_FDMI		0x4	/* port is ready for FDMI requests */
455 	/* Vport Config Parameters */
456 	uint32_t cfg_scan_down;
457 	uint32_t cfg_lun_queue_depth;
458 	uint32_t cfg_nodev_tmo;
459 	uint32_t cfg_devloss_tmo;
460 	uint32_t cfg_restrict_login;
461 	uint32_t cfg_peer_port_login;
462 	uint32_t cfg_fcp_class;
463 	uint32_t cfg_use_adisc;
464 	uint32_t cfg_discovery_threads;
465 	uint32_t cfg_log_verbose;
466 	uint32_t cfg_enable_fc4_type;
467 	uint32_t cfg_max_luns;
468 	uint32_t cfg_enable_da_id;
469 	uint32_t cfg_max_scsicmpl_time;
470 	uint32_t cfg_tgt_queue_depth;
471 	uint32_t cfg_first_burst_size;
472 	uint32_t dev_loss_tmo_changed;
473 
474 	struct fc_vport *fc_vport;
475 
476 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
477 	struct dentry *debug_disc_trc;
478 	struct dentry *debug_nodelist;
479 	struct dentry *debug_nvmestat;
480 	struct dentry *debug_scsistat;
481 	struct dentry *debug_ioktime;
482 	struct dentry *debug_hdwqstat;
483 	struct dentry *vport_debugfs_root;
484 	struct lpfc_debugfs_trc *disc_trc;
485 	atomic_t disc_trc_cnt;
486 #endif
487 	uint8_t stat_data_enabled;
488 	uint8_t stat_data_blocked;
489 	struct list_head rcv_buffer_list;
490 	unsigned long rcv_buffer_time_stamp;
491 	uint32_t vport_flag;
492 #define STATIC_VPORT	1
493 #define FAWWPN_SET	2
494 #define FAWWPN_PARAM_CHG	4
495 
496 	uint16_t fdmi_num_disc;
497 	uint32_t fdmi_hba_mask;
498 	uint32_t fdmi_port_mask;
499 
500 	/* There is a single nvme instance per vport. */
501 	struct nvme_fc_local_port *localport;
502 	uint8_t  nvmei_support; /* driver supports NVME Initiator */
503 	uint32_t last_fcp_wqidx;
504 	uint32_t rcv_flogi_cnt; /* How many unsol FLOGIs ACK'd. */
505 };
506 
507 struct hbq_s {
508 	uint16_t entry_count;	  /* Current number of HBQ slots */
509 	uint16_t buffer_count;	  /* Current number of buffers posted */
510 	uint32_t next_hbqPutIdx;  /* Index to next HBQ slot to use */
511 	uint32_t hbqPutIdx;	  /* HBQ slot to use */
512 	uint32_t local_hbqGetIdx; /* Local copy of Get index from Port */
513 	void    *hbq_virt;	  /* Virtual ptr to this hbq */
514 	struct list_head hbq_buffer_list;  /* buffers assigned to this HBQ */
515 				  /* Callback for HBQ buffer allocation */
516 	struct hbq_dmabuf *(*hbq_alloc_buffer) (struct lpfc_hba *);
517 				  /* Callback for HBQ buffer free */
518 	void               (*hbq_free_buffer) (struct lpfc_hba *,
519 					       struct hbq_dmabuf *);
520 };
521 
522 /* this matches the position in the lpfc_hbq_defs array */
523 #define LPFC_ELS_HBQ	0
524 #define LPFC_MAX_HBQS	1
525 
526 enum hba_temp_state {
527 	HBA_NORMAL_TEMP,
528 	HBA_OVER_TEMP
529 };
530 
531 enum intr_type_t {
532 	NONE = 0,
533 	INTx,
534 	MSI,
535 	MSIX,
536 };
537 
538 #define LPFC_CT_CTX_MAX		64
539 struct unsol_rcv_ct_ctx {
540 	uint32_t ctxt_id;
541 	uint32_t SID;
542 	uint32_t valid;
543 #define UNSOL_INVALID		0
544 #define UNSOL_VALID		1
545 	uint16_t oxid;
546 	uint16_t rxid;
547 };
548 
549 #define LPFC_USER_LINK_SPEED_AUTO	0	/* auto select (default)*/
550 #define LPFC_USER_LINK_SPEED_1G		1	/* 1 Gigabaud */
551 #define LPFC_USER_LINK_SPEED_2G		2	/* 2 Gigabaud */
552 #define LPFC_USER_LINK_SPEED_4G		4	/* 4 Gigabaud */
553 #define LPFC_USER_LINK_SPEED_8G		8	/* 8 Gigabaud */
554 #define LPFC_USER_LINK_SPEED_10G	10	/* 10 Gigabaud */
555 #define LPFC_USER_LINK_SPEED_16G	16	/* 16 Gigabaud */
556 #define LPFC_USER_LINK_SPEED_32G	32	/* 32 Gigabaud */
557 #define LPFC_USER_LINK_SPEED_64G	64	/* 64 Gigabaud */
558 #define LPFC_USER_LINK_SPEED_MAX	LPFC_USER_LINK_SPEED_64G
559 
560 #define LPFC_LINK_SPEED_STRING "0, 1, 2, 4, 8, 10, 16, 32, 64"
561 
562 enum nemb_type {
563 	nemb_mse = 1,
564 	nemb_hbd
565 };
566 
567 enum mbox_type {
568 	mbox_rd = 1,
569 	mbox_wr
570 };
571 
572 enum dma_type {
573 	dma_mbox = 1,
574 	dma_ebuf
575 };
576 
577 enum sta_type {
578 	sta_pre_addr = 1,
579 	sta_pos_addr
580 };
581 
582 struct lpfc_mbox_ext_buf_ctx {
583 	uint32_t state;
584 #define LPFC_BSG_MBOX_IDLE		0
585 #define LPFC_BSG_MBOX_HOST              1
586 #define LPFC_BSG_MBOX_PORT		2
587 #define LPFC_BSG_MBOX_DONE		3
588 #define LPFC_BSG_MBOX_ABTS		4
589 	enum nemb_type nembType;
590 	enum mbox_type mboxType;
591 	uint32_t numBuf;
592 	uint32_t mbxTag;
593 	uint32_t seqNum;
594 	struct lpfc_dmabuf *mbx_dmabuf;
595 	struct list_head ext_dmabuf_list;
596 };
597 
598 struct lpfc_epd_pool {
599 	/* Expedite pool */
600 	struct list_head list;
601 	u32 count;
602 	spinlock_t lock;	/* lock for expedite pool */
603 };
604 
605 enum ras_state {
606 	INACTIVE,
607 	REG_INPROGRESS,
608 	ACTIVE
609 };
610 
611 struct lpfc_ras_fwlog {
612 	uint8_t *fwlog_buff;
613 	uint32_t fw_buffcount; /* Buffer size posted to FW */
614 #define LPFC_RAS_BUFF_ENTERIES  16      /* Each entry can hold max of 64k */
615 #define LPFC_RAS_MAX_ENTRY_SIZE (64 * 1024)
616 #define LPFC_RAS_MIN_BUFF_POST_SIZE (256 * 1024)
617 #define LPFC_RAS_MAX_BUFF_POST_SIZE (1024 * 1024)
618 	uint32_t fw_loglevel; /* Log level set */
619 	struct lpfc_dmabuf lwpd;
620 	struct list_head fwlog_buff_list;
621 
622 	/* RAS support status on adapter */
623 	bool ras_hwsupport; /* RAS Support available on HW or not */
624 	bool ras_enabled;   /* Ras Enabled for the function */
625 #define LPFC_RAS_DISABLE_LOGGING 0x00
626 #define LPFC_RAS_ENABLE_LOGGING 0x01
627 	enum ras_state state;    /* RAS logging running state */
628 };
629 
630 #define DBG_LOG_STR_SZ 256
631 #define DBG_LOG_SZ 256
632 
633 struct dbg_log_ent {
634 	char log[DBG_LOG_STR_SZ];
635 	u64     t_ns;
636 };
637 
638 enum lpfc_irq_chann_mode {
639 	/* Assign IRQs to all possible cpus that have hardware queues */
640 	NORMAL_MODE,
641 
642 	/* Assign IRQs only to cpus on the same numa node as HBA */
643 	NUMA_MODE,
644 
645 	/* Assign IRQs only on non-hyperthreaded CPUs. This is the
646 	 * same as normal_mode, but assign IRQS only on physical CPUs.
647 	 */
648 	NHT_MODE,
649 };
650 
651 struct lpfc_hba {
652 	/* SCSI interface function jump table entries */
653 	struct lpfc_io_buf * (*lpfc_get_scsi_buf)
654 		(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
655 		struct scsi_cmnd *cmnd);
656 	int (*lpfc_scsi_prep_dma_buf)
657 		(struct lpfc_hba *, struct lpfc_io_buf *);
658 	void (*lpfc_scsi_unprep_dma_buf)
659 		(struct lpfc_hba *, struct lpfc_io_buf *);
660 	void (*lpfc_release_scsi_buf)
661 		(struct lpfc_hba *, struct lpfc_io_buf *);
662 	void (*lpfc_rampdown_queue_depth)
663 		(struct lpfc_hba *);
664 	void (*lpfc_scsi_prep_cmnd)
665 		(struct lpfc_vport *, struct lpfc_io_buf *,
666 		 struct lpfc_nodelist *);
667 	int (*lpfc_scsi_prep_cmnd_buf)
668 		(struct lpfc_vport *vport,
669 		 struct lpfc_io_buf *lpfc_cmd,
670 		 uint8_t tmo);
671 
672 	/* IOCB interface function jump table entries */
673 	int (*__lpfc_sli_issue_iocb)
674 		(struct lpfc_hba *, uint32_t,
675 		 struct lpfc_iocbq *, uint32_t);
676 	int (*__lpfc_sli_issue_fcp_io)
677 		(struct lpfc_hba *phba, uint32_t ring_number,
678 		 struct lpfc_iocbq *piocb, uint32_t flag);
679 	void (*__lpfc_sli_release_iocbq)(struct lpfc_hba *,
680 			 struct lpfc_iocbq *);
681 	int (*lpfc_hba_down_post)(struct lpfc_hba *phba);
682 	IOCB_t * (*lpfc_get_iocb_from_iocbq)
683 		(struct lpfc_iocbq *);
684 	void (*lpfc_scsi_cmd_iocb_cmpl)
685 		(struct lpfc_hba *, struct lpfc_iocbq *, struct lpfc_iocbq *);
686 
687 	/* MBOX interface function jump table entries */
688 	int (*lpfc_sli_issue_mbox)
689 		(struct lpfc_hba *, LPFC_MBOXQ_t *, uint32_t);
690 
691 	/* Slow-path IOCB process function jump table entries */
692 	void (*lpfc_sli_handle_slow_ring_event)
693 		(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
694 		 uint32_t mask);
695 
696 	/* INIT device interface function jump table entries */
697 	int (*lpfc_sli_hbq_to_firmware)
698 		(struct lpfc_hba *, uint32_t, struct hbq_dmabuf *);
699 	int (*lpfc_sli_brdrestart)
700 		(struct lpfc_hba *);
701 	int (*lpfc_sli_brdready)
702 		(struct lpfc_hba *, uint32_t);
703 	void (*lpfc_handle_eratt)
704 		(struct lpfc_hba *);
705 	void (*lpfc_stop_port)
706 		(struct lpfc_hba *);
707 	int (*lpfc_hba_init_link)
708 		(struct lpfc_hba *, uint32_t);
709 	int (*lpfc_hba_down_link)
710 		(struct lpfc_hba *, uint32_t);
711 	int (*lpfc_selective_reset)
712 		(struct lpfc_hba *);
713 
714 	int (*lpfc_bg_scsi_prep_dma_buf)
715 		(struct lpfc_hba *, struct lpfc_io_buf *);
716 	/* Add new entries here */
717 
718 	/* expedite pool */
719 	struct lpfc_epd_pool epd_pool;
720 
721 	/* SLI4 specific HBA data structure */
722 	struct lpfc_sli4_hba sli4_hba;
723 
724 	struct workqueue_struct *wq;
725 	struct delayed_work     eq_delay_work;
726 
727 #define LPFC_IDLE_STAT_DELAY 1000
728 	struct delayed_work	idle_stat_delay_work;
729 
730 	struct lpfc_sli sli;
731 	uint8_t pci_dev_grp;	/* lpfc PCI dev group: 0x0, 0x1, 0x2,... */
732 	uint32_t sli_rev;		/* SLI2, SLI3, or SLI4 */
733 	uint32_t sli3_options;		/* Mask of enabled SLI3 options */
734 #define LPFC_SLI3_HBQ_ENABLED		0x01
735 #define LPFC_SLI3_NPIV_ENABLED		0x02
736 #define LPFC_SLI3_VPORT_TEARDOWN	0x04
737 #define LPFC_SLI3_CRP_ENABLED		0x08
738 #define LPFC_SLI3_BG_ENABLED		0x20
739 #define LPFC_SLI3_DSS_ENABLED		0x40
740 #define LPFC_SLI4_PERFH_ENABLED		0x80
741 #define LPFC_SLI4_PHWQ_ENABLED		0x100
742 	uint32_t iocb_cmd_size;
743 	uint32_t iocb_rsp_size;
744 
745 	struct lpfc_trunk_link  trunk_link;
746 	enum hba_state link_state;
747 	uint32_t link_flag;	/* link state flags */
748 #define LS_LOOPBACK_MODE      0x1	/* NPort is in Loopback mode */
749 					/* This flag is set while issuing */
750 					/* INIT_LINK mailbox command */
751 #define LS_NPIV_FAB_SUPPORTED 0x2	/* Fabric supports NPIV */
752 #define LS_IGNORE_ERATT       0x4	/* intr handler should ignore ERATT */
753 #define LS_MDS_LINK_DOWN      0x8	/* MDS Diagnostics Link Down */
754 #define LS_MDS_LOOPBACK       0x10	/* MDS Diagnostics Link Up (Loopback) */
755 #define LS_CT_VEN_RPA         0x20	/* Vendor RPA sent to switch */
756 
757 	uint32_t hba_flag;	/* hba generic flags */
758 #define HBA_ERATT_HANDLED	0x1 /* This flag is set when eratt handled */
759 #define DEFER_ERATT		0x2 /* Deferred error attention in progress */
760 #define HBA_FCOE_MODE		0x4 /* HBA function in FCoE Mode */
761 #define HBA_SP_QUEUE_EVT	0x8 /* Slow-path qevt posted to worker thread*/
762 #define HBA_POST_RECEIVE_BUFFER 0x10 /* Rcv buffers need to be posted */
763 #define HBA_PERSISTENT_TOPO	0x20 /* Persistent topology support in hba */
764 #define ELS_XRI_ABORT_EVENT	0x40 /* ELS_XRI abort event was queued */
765 #define ASYNC_EVENT		0x80
766 #define LINK_DISABLED		0x100 /* Link disabled by user */
767 #define FCF_TS_INPROG           0x200 /* FCF table scan in progress */
768 #define FCF_RR_INPROG           0x400 /* FCF roundrobin flogi in progress */
769 #define HBA_FIP_SUPPORT		0x800 /* FIP support in HBA */
770 #define HBA_AER_ENABLED		0x1000 /* AER enabled with HBA */
771 #define HBA_DEVLOSS_TMO         0x2000 /* HBA in devloss timeout */
772 #define HBA_RRQ_ACTIVE		0x4000 /* process the rrq active list */
773 #define HBA_IOQ_FLUSH		0x8000 /* FCP/NVME I/O queues being flushed */
774 #define HBA_FW_DUMP_OP		0x10000 /* Skips fn reset before FW dump */
775 #define HBA_RECOVERABLE_UE	0x20000 /* Firmware supports recoverable UE */
776 #define HBA_FORCED_LINK_SPEED	0x40000 /*
777 					 * Firmware supports Forced Link Speed
778 					 * capability
779 					 */
780 #define HBA_FLOGI_ISSUED	0x100000 /* FLOGI was issued */
781 #define HBA_DEFER_FLOGI		0x800000 /* Defer FLOGI till read_sparm cmpl */
782 
783 	uint32_t fcp_ring_in_use; /* When polling test if intr-hndlr active*/
784 	struct lpfc_dmabuf slim2p;
785 
786 	MAILBOX_t *mbox;
787 	uint32_t *mbox_ext;
788 	struct lpfc_mbox_ext_buf_ctx mbox_ext_buf_ctx;
789 	uint32_t ha_copy;
790 	struct _PCB *pcb;
791 	struct _IOCB *IOCBs;
792 
793 	struct lpfc_dmabuf hbqslimp;
794 
795 	uint16_t pci_cfg_value;
796 
797 	uint8_t fc_linkspeed;	/* Link speed after last READ_LA */
798 
799 	uint32_t fc_eventTag;	/* event tag for link attention */
800 	uint32_t link_events;
801 
802 	/* These fields used to be binfo */
803 	uint32_t fc_pref_DID;	/* preferred D_ID */
804 	uint8_t  fc_pref_ALPA;	/* preferred AL_PA */
805 	uint32_t fc_edtovResol; /* E_D_TOV timer resolution */
806 	uint32_t fc_edtov;	/* E_D_TOV timer value */
807 	uint32_t fc_arbtov;	/* ARB_TOV timer value */
808 	uint32_t fc_ratov;	/* R_A_TOV timer value */
809 	uint32_t fc_rttov;	/* R_T_TOV timer value */
810 	uint32_t fc_altov;	/* AL_TOV timer value */
811 	uint32_t fc_crtov;	/* C_R_TOV timer value */
812 
813 	struct serv_parm fc_fabparam;	/* fabric service parameters buffer */
814 	uint8_t alpa_map[128];	/* AL_PA map from READ_LA */
815 
816 	uint32_t lmt;
817 
818 	uint32_t fc_topology;	/* link topology, from LINK INIT */
819 	uint32_t fc_topology_changed;	/* link topology, from LINK INIT */
820 
821 	struct lpfc_stats fc_stat;
822 
823 	struct lpfc_nodelist fc_fcpnodev; /* nodelist entry for no device */
824 	uint32_t nport_event_cnt;	/* timestamp for nlplist entry */
825 
826 	uint8_t  wwnn[8];
827 	uint8_t  wwpn[8];
828 	uint32_t RandomData[7];
829 	uint8_t  fcp_embed_io;
830 	uint8_t  nvme_support;	/* Firmware supports NVME */
831 	uint8_t  nvmet_support;	/* driver supports NVMET */
832 #define LPFC_NVMET_MAX_PORTS	32
833 	uint8_t  mds_diags_support;
834 	uint8_t  bbcredit_support;
835 	uint8_t  enab_exp_wqcq_pages;
836 	u8	 nsler; /* Firmware supports FC-NVMe-2 SLER */
837 
838 	/* HBA Config Parameters */
839 	uint32_t cfg_ack0;
840 	uint32_t cfg_xri_rebalancing;
841 	uint32_t cfg_xpsgl;
842 	uint32_t cfg_enable_npiv;
843 	uint32_t cfg_enable_rrq;
844 	uint32_t cfg_topology;
845 	uint32_t cfg_link_speed;
846 #define LPFC_FCF_FOV 1		/* Fast fcf failover */
847 #define LPFC_FCF_PRIORITY 2	/* Priority fcf failover */
848 	uint32_t cfg_fcf_failover_policy;
849 	uint32_t cfg_fcp_io_sched;
850 	uint32_t cfg_ns_query;
851 	uint32_t cfg_fcp2_no_tgt_reset;
852 	uint32_t cfg_cr_delay;
853 	uint32_t cfg_cr_count;
854 	uint32_t cfg_multi_ring_support;
855 	uint32_t cfg_multi_ring_rctl;
856 	uint32_t cfg_multi_ring_type;
857 	uint32_t cfg_poll;
858 	uint32_t cfg_poll_tmo;
859 	uint32_t cfg_task_mgmt_tmo;
860 	uint32_t cfg_use_msi;
861 	uint32_t cfg_auto_imax;
862 	uint32_t cfg_fcp_imax;
863 	uint32_t cfg_force_rscn;
864 	uint32_t cfg_cq_poll_threshold;
865 	uint32_t cfg_cq_max_proc_limit;
866 	uint32_t cfg_fcp_cpu_map;
867 	uint32_t cfg_fcp_mq_threshold;
868 	uint32_t cfg_hdw_queue;
869 	uint32_t cfg_irq_chann;
870 	uint32_t cfg_suppress_rsp;
871 	uint32_t cfg_nvme_oas;
872 	uint32_t cfg_nvme_embed_cmd;
873 	uint32_t cfg_nvmet_mrq_post;
874 	uint32_t cfg_nvmet_mrq;
875 	uint32_t cfg_enable_nvmet;
876 	uint32_t cfg_nvme_enable_fb;
877 	uint32_t cfg_nvmet_fb_size;
878 	uint32_t cfg_total_seg_cnt;
879 	uint32_t cfg_sg_seg_cnt;
880 	uint32_t cfg_nvme_seg_cnt;
881 	uint32_t cfg_scsi_seg_cnt;
882 	uint32_t cfg_sg_dma_buf_size;
883 	uint64_t cfg_soft_wwnn;
884 	uint64_t cfg_soft_wwpn;
885 	uint32_t cfg_hba_queue_depth;
886 	uint32_t cfg_enable_hba_reset;
887 	uint32_t cfg_enable_hba_heartbeat;
888 	uint32_t cfg_fof;
889 	uint32_t cfg_EnableXLane;
890 	uint8_t cfg_oas_tgt_wwpn[8];
891 	uint8_t cfg_oas_vpt_wwpn[8];
892 	uint32_t cfg_oas_lun_state;
893 #define OAS_LUN_ENABLE	1
894 #define OAS_LUN_DISABLE	0
895 	uint32_t cfg_oas_lun_status;
896 #define OAS_LUN_STATUS_EXISTS	0x01
897 	uint32_t cfg_oas_flags;
898 #define OAS_FIND_ANY_VPORT	0x01
899 #define OAS_FIND_ANY_TARGET	0x02
900 #define OAS_LUN_VALID	0x04
901 	uint32_t cfg_oas_priority;
902 	uint32_t cfg_XLanePriority;
903 	uint32_t cfg_enable_bg;
904 	uint32_t cfg_prot_mask;
905 	uint32_t cfg_prot_guard;
906 	uint32_t cfg_hostmem_hgp;
907 	uint32_t cfg_log_verbose;
908 	uint32_t cfg_enable_fc4_type;
909 	uint32_t cfg_aer_support;
910 	uint32_t cfg_sriov_nr_virtfn;
911 	uint32_t cfg_request_firmware_upgrade;
912 	uint32_t cfg_suppress_link_up;
913 	uint32_t cfg_rrq_xri_bitmap_sz;
914 	uint32_t cfg_delay_discovery;
915 	uint32_t cfg_sli_mode;
916 #define LPFC_INITIALIZE_LINK              0	/* do normal init_link mbox */
917 #define LPFC_DELAY_INIT_LINK              1	/* layered driver hold off */
918 #define LPFC_DELAY_INIT_LINK_INDEFINITELY 2	/* wait, manual intervention */
919 	uint32_t cfg_fdmi_on;
920 #define LPFC_FDMI_NO_SUPPORT	0	/* FDMI not supported */
921 #define LPFC_FDMI_SUPPORT	1	/* FDMI supported? */
922 	uint32_t cfg_enable_SmartSAN;
923 	uint32_t cfg_enable_mds_diags;
924 	uint32_t cfg_ras_fwlog_level;
925 	uint32_t cfg_ras_fwlog_buffsize;
926 	uint32_t cfg_ras_fwlog_func;
927 	uint32_t cfg_enable_bbcr;	/* Enable BB Credit Recovery */
928 	uint32_t cfg_enable_dpp;	/* Enable Direct Packet Push */
929 #define LPFC_ENABLE_FCP  1
930 #define LPFC_ENABLE_NVME 2
931 #define LPFC_ENABLE_BOTH 3
932 	uint32_t cfg_enable_pbde;
933 	uint32_t cfg_enable_mi;
934 	struct nvmet_fc_target_port *targetport;
935 	lpfc_vpd_t vpd;		/* vital product data */
936 
937 	struct pci_dev *pcidev;
938 	struct list_head      work_list;
939 	uint32_t              work_ha;      /* Host Attention Bits for WT */
940 	uint32_t              work_ha_mask; /* HA Bits owned by WT        */
941 	uint32_t              work_hs;      /* HS stored in case of ERRAT */
942 	uint32_t              work_status[2]; /* Extra status from SLIM */
943 
944 	wait_queue_head_t    work_waitq;
945 	struct task_struct   *worker_thread;
946 	unsigned long data_flags;
947 	uint32_t border_sge_num;
948 
949 	uint32_t hbq_in_use;		/* HBQs in use flag */
950 	uint32_t hbq_count;	        /* Count of configured HBQs */
951 	struct hbq_s hbqs[LPFC_MAX_HBQS]; /* local copy of hbq indicies  */
952 
953 	atomic_t fcp_qidx;         /* next FCP WQ (RR Policy) */
954 	atomic_t nvme_qidx;        /* next NVME WQ (RR Policy) */
955 
956 	phys_addr_t pci_bar0_map;     /* Physical address for PCI BAR0 */
957 	phys_addr_t pci_bar1_map;     /* Physical address for PCI BAR1 */
958 	phys_addr_t pci_bar2_map;     /* Physical address for PCI BAR2 */
959 	void __iomem *slim_memmap_p;	/* Kernel memory mapped address for
960 					   PCI BAR0 */
961 	void __iomem *ctrl_regs_memmap_p;/* Kernel memory mapped address for
962 					    PCI BAR2 */
963 
964 	void __iomem *pci_bar0_memmap_p; /* Kernel memory mapped address for
965 					    PCI BAR0 with dual-ULP support */
966 	void __iomem *pci_bar2_memmap_p; /* Kernel memory mapped address for
967 					    PCI BAR2 with dual-ULP support */
968 	void __iomem *pci_bar4_memmap_p; /* Kernel memory mapped address for
969 					    PCI BAR4 with dual-ULP support */
970 #define PCI_64BIT_BAR0	0
971 #define PCI_64BIT_BAR2	2
972 #define PCI_64BIT_BAR4	4
973 	void __iomem *MBslimaddr;	/* virtual address for mbox cmds */
974 	void __iomem *HAregaddr;	/* virtual address for host attn reg */
975 	void __iomem *CAregaddr;	/* virtual address for chip attn reg */
976 	void __iomem *HSregaddr;	/* virtual address for host status
977 					   reg */
978 	void __iomem *HCregaddr;	/* virtual address for host ctl reg */
979 
980 	struct lpfc_hgp __iomem *host_gp; /* Host side get/put pointers */
981 	struct lpfc_pgp   *port_gp;
982 	uint32_t __iomem  *hbq_put;     /* Address in SLIM to HBQ put ptrs */
983 	uint32_t          *hbq_get;     /* Host mem address of HBQ get ptrs */
984 
985 	int brd_no;			/* FC board number */
986 	char SerialNumber[32];		/* adapter Serial Number */
987 	char OptionROMVersion[32];	/* adapter BIOS / Fcode version */
988 	char BIOSVersion[16];		/* Boot BIOS version */
989 	char ModelDesc[256];		/* Model Description */
990 	char ModelName[80];		/* Model Name */
991 	char ProgramType[256];		/* Program Type */
992 	char Port[20];			/* Port No */
993 	uint8_t vpd_flag;               /* VPD data flag */
994 
995 #define VPD_MODEL_DESC      0x1         /* valid vpd model description */
996 #define VPD_MODEL_NAME      0x2         /* valid vpd model name */
997 #define VPD_PROGRAM_TYPE    0x4         /* valid vpd program type */
998 #define VPD_PORT            0x8         /* valid vpd port data */
999 #define VPD_MASK            0xf         /* mask for any vpd data */
1000 
1001 	uint8_t soft_wwn_enable;
1002 
1003 	struct timer_list fcp_poll_timer;
1004 	struct timer_list eratt_poll;
1005 	uint32_t eratt_poll_interval;
1006 
1007 	uint64_t bg_guard_err_cnt;
1008 	uint64_t bg_apptag_err_cnt;
1009 	uint64_t bg_reftag_err_cnt;
1010 
1011 	/* fastpath list. */
1012 	spinlock_t scsi_buf_list_get_lock;  /* SCSI buf alloc list lock */
1013 	spinlock_t scsi_buf_list_put_lock;  /* SCSI buf free list lock */
1014 	struct list_head lpfc_scsi_buf_list_get;
1015 	struct list_head lpfc_scsi_buf_list_put;
1016 	uint32_t total_scsi_bufs;
1017 	struct list_head lpfc_iocb_list;
1018 	uint32_t total_iocbq_bufs;
1019 	struct list_head active_rrq_list;
1020 	spinlock_t hbalock;
1021 
1022 	/* dma_mem_pools */
1023 	struct dma_pool *lpfc_sg_dma_buf_pool;
1024 	struct dma_pool *lpfc_mbuf_pool;
1025 	struct dma_pool *lpfc_hrb_pool;	/* header receive buffer pool */
1026 	struct dma_pool *lpfc_drb_pool; /* data receive buffer pool */
1027 	struct dma_pool *lpfc_nvmet_drb_pool; /* data receive buffer pool */
1028 	struct dma_pool *lpfc_hbq_pool;	/* SLI3 hbq buffer pool */
1029 	struct dma_pool *lpfc_cmd_rsp_buf_pool;
1030 	struct lpfc_dma_pool lpfc_mbuf_safety_pool;
1031 
1032 	mempool_t *mbox_mem_pool;
1033 	mempool_t *nlp_mem_pool;
1034 	mempool_t *rrq_pool;
1035 	mempool_t *active_rrq_pool;
1036 
1037 	struct fc_host_statistics link_stats;
1038 	enum lpfc_irq_chann_mode irq_chann_mode;
1039 	enum intr_type_t intr_type;
1040 	uint32_t intr_mode;
1041 #define LPFC_INTR_ERROR	0xFFFFFFFF
1042 	struct list_head port_list;
1043 	spinlock_t port_list_lock;	/* lock for port_list mutations */
1044 	struct lpfc_vport *pport;	/* physical lpfc_vport pointer */
1045 	uint16_t max_vpi;		/* Maximum virtual nports */
1046 #define LPFC_MAX_VPI	0xFF		/* Max number VPI supported 0 - 0xff */
1047 #define LPFC_MAX_VPORTS	0x100		/* Max vports per port, with pport */
1048 	uint16_t max_vports;            /*
1049 					 * For IOV HBAs max_vpi can change
1050 					 * after a reset. max_vports is max
1051 					 * number of vports present. This can
1052 					 * be greater than max_vpi.
1053 					 */
1054 	uint16_t vpi_base;
1055 	uint16_t vfi_base;
1056 	unsigned long *vpi_bmask;	/* vpi allocation table */
1057 	uint16_t *vpi_ids;
1058 	uint16_t vpi_count;
1059 	struct list_head lpfc_vpi_blk_list;
1060 
1061 	/* Data structure used by fabric iocb scheduler */
1062 	struct list_head fabric_iocb_list;
1063 	atomic_t fabric_iocb_count;
1064 	struct timer_list fabric_block_timer;
1065 	unsigned long bit_flags;
1066 #define	FABRIC_COMANDS_BLOCKED	0
1067 	atomic_t num_rsrc_err;
1068 	atomic_t num_cmd_success;
1069 	unsigned long last_rsrc_error_time;
1070 	unsigned long last_ramp_down_time;
1071 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
1072 	struct dentry *hba_debugfs_root;
1073 	atomic_t debugfs_vport_count;
1074 	struct dentry *debug_multixri_pools;
1075 	struct dentry *debug_hbqinfo;
1076 	struct dentry *debug_dumpHostSlim;
1077 	struct dentry *debug_dumpHBASlim;
1078 	struct dentry *debug_InjErrLBA;  /* LBA to inject errors at */
1079 	struct dentry *debug_InjErrNPortID;  /* NPortID to inject errors at */
1080 	struct dentry *debug_InjErrWWPN;  /* WWPN to inject errors at */
1081 	struct dentry *debug_writeGuard; /* inject write guard_tag errors */
1082 	struct dentry *debug_writeApp;   /* inject write app_tag errors */
1083 	struct dentry *debug_writeRef;   /* inject write ref_tag errors */
1084 	struct dentry *debug_readGuard;  /* inject read guard_tag errors */
1085 	struct dentry *debug_readApp;    /* inject read app_tag errors */
1086 	struct dentry *debug_readRef;    /* inject read ref_tag errors */
1087 
1088 	struct dentry *debug_nvmeio_trc;
1089 	struct lpfc_debugfs_nvmeio_trc *nvmeio_trc;
1090 	struct dentry *debug_hdwqinfo;
1091 #ifdef LPFC_HDWQ_LOCK_STAT
1092 	struct dentry *debug_lockstat;
1093 #endif
1094 	struct dentry *debug_ras_log;
1095 	atomic_t nvmeio_trc_cnt;
1096 	uint32_t nvmeio_trc_size;
1097 	uint32_t nvmeio_trc_output_idx;
1098 
1099 	/* T10 DIF error injection */
1100 	uint32_t lpfc_injerr_wgrd_cnt;
1101 	uint32_t lpfc_injerr_wapp_cnt;
1102 	uint32_t lpfc_injerr_wref_cnt;
1103 	uint32_t lpfc_injerr_rgrd_cnt;
1104 	uint32_t lpfc_injerr_rapp_cnt;
1105 	uint32_t lpfc_injerr_rref_cnt;
1106 	uint32_t lpfc_injerr_nportid;
1107 	struct lpfc_name lpfc_injerr_wwpn;
1108 	sector_t lpfc_injerr_lba;
1109 #define LPFC_INJERR_LBA_OFF	(sector_t)(-1)
1110 
1111 	struct dentry *debug_slow_ring_trc;
1112 	struct lpfc_debugfs_trc *slow_ring_trc;
1113 	atomic_t slow_ring_trc_cnt;
1114 	/* iDiag debugfs sub-directory */
1115 	struct dentry *idiag_root;
1116 	struct dentry *idiag_pci_cfg;
1117 	struct dentry *idiag_bar_acc;
1118 	struct dentry *idiag_que_info;
1119 	struct dentry *idiag_que_acc;
1120 	struct dentry *idiag_drb_acc;
1121 	struct dentry *idiag_ctl_acc;
1122 	struct dentry *idiag_mbx_acc;
1123 	struct dentry *idiag_ext_acc;
1124 	uint8_t lpfc_idiag_last_eq;
1125 #endif
1126 	uint16_t nvmeio_trc_on;
1127 
1128 	/* Used for deferred freeing of ELS data buffers */
1129 	struct list_head elsbuf;
1130 	int elsbuf_cnt;
1131 	int elsbuf_prev_cnt;
1132 
1133 	uint8_t temp_sensor_support;
1134 	/* Fields used for heart beat. */
1135 	unsigned long last_completion_time;
1136 	unsigned long skipped_hb;
1137 	struct timer_list hb_tmofunc;
1138 	uint8_t hb_outstanding;
1139 	struct timer_list rrq_tmr;
1140 	enum hba_temp_state over_temp_state;
1141 	/*
1142 	 * Following bit will be set for all buffer tags which are not
1143 	 * associated with any HBQ.
1144 	 */
1145 #define QUE_BUFTAG_BIT  (1<<31)
1146 	uint32_t buffer_tag_count;
1147 	int wait_4_mlo_maint_flg;
1148 	wait_queue_head_t wait_4_mlo_m_q;
1149 	/* data structure used for latency data collection */
1150 #define LPFC_NO_BUCKET	   0
1151 #define LPFC_LINEAR_BUCKET 1
1152 #define LPFC_POWER2_BUCKET 2
1153 	uint8_t  bucket_type;
1154 	uint32_t bucket_base;
1155 	uint32_t bucket_step;
1156 
1157 /* Maximum number of events that can be outstanding at any time*/
1158 #define LPFC_MAX_EVT_COUNT 512
1159 	atomic_t fast_event_count;
1160 	uint32_t fcoe_eventtag;
1161 	uint32_t fcoe_eventtag_at_fcf_scan;
1162 	uint32_t fcoe_cvl_eventtag;
1163 	uint32_t fcoe_cvl_eventtag_attn;
1164 	struct lpfc_fcf fcf;
1165 	uint8_t fc_map[3];
1166 	uint8_t valid_vlan;
1167 	uint16_t vlan_id;
1168 	struct list_head fcf_conn_rec_list;
1169 
1170 	bool defer_flogi_acc_flag;
1171 	uint16_t defer_flogi_acc_rx_id;
1172 	uint16_t defer_flogi_acc_ox_id;
1173 
1174 	spinlock_t ct_ev_lock; /* synchronize access to ct_ev_waiters */
1175 	struct list_head ct_ev_waiters;
1176 	struct unsol_rcv_ct_ctx ct_ctx[LPFC_CT_CTX_MAX];
1177 	uint32_t ctx_idx;
1178 
1179 	/* RAS Support */
1180 	struct lpfc_ras_fwlog ras_fwlog;
1181 
1182 	uint8_t menlo_flag;	/* menlo generic flags */
1183 #define HBA_MENLO_SUPPORT	0x1 /* HBA supports menlo commands */
1184 	uint32_t iocb_cnt;
1185 	uint32_t iocb_max;
1186 	atomic_t sdev_cnt;
1187 	spinlock_t devicelock;	/* lock for luns list */
1188 	mempool_t *device_data_mem_pool;
1189 	struct list_head luns;
1190 #define LPFC_TRANSGRESSION_HIGH_TEMPERATURE	0x0080
1191 #define LPFC_TRANSGRESSION_LOW_TEMPERATURE	0x0040
1192 #define LPFC_TRANSGRESSION_HIGH_VOLTAGE		0x0020
1193 #define LPFC_TRANSGRESSION_LOW_VOLTAGE		0x0010
1194 #define LPFC_TRANSGRESSION_HIGH_TXBIAS		0x0008
1195 #define LPFC_TRANSGRESSION_LOW_TXBIAS		0x0004
1196 #define LPFC_TRANSGRESSION_HIGH_TXPOWER		0x0002
1197 #define LPFC_TRANSGRESSION_LOW_TXPOWER		0x0001
1198 #define LPFC_TRANSGRESSION_HIGH_RXPOWER		0x8000
1199 #define LPFC_TRANSGRESSION_LOW_RXPOWER		0x4000
1200 	uint16_t sfp_alarm;
1201 	uint16_t sfp_warning;
1202 
1203 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
1204 	uint16_t hdwqstat_on;
1205 #define LPFC_CHECK_OFF		0
1206 #define LPFC_CHECK_NVME_IO	1
1207 #define LPFC_CHECK_NVMET_IO	2
1208 #define LPFC_CHECK_SCSI_IO	4
1209 	uint16_t ktime_on;
1210 	uint64_t ktime_data_samples;
1211 	uint64_t ktime_status_samples;
1212 	uint64_t ktime_last_cmd;
1213 	uint64_t ktime_seg1_total;
1214 	uint64_t ktime_seg1_min;
1215 	uint64_t ktime_seg1_max;
1216 	uint64_t ktime_seg2_total;
1217 	uint64_t ktime_seg2_min;
1218 	uint64_t ktime_seg2_max;
1219 	uint64_t ktime_seg3_total;
1220 	uint64_t ktime_seg3_min;
1221 	uint64_t ktime_seg3_max;
1222 	uint64_t ktime_seg4_total;
1223 	uint64_t ktime_seg4_min;
1224 	uint64_t ktime_seg4_max;
1225 	uint64_t ktime_seg5_total;
1226 	uint64_t ktime_seg5_min;
1227 	uint64_t ktime_seg5_max;
1228 	uint64_t ktime_seg6_total;
1229 	uint64_t ktime_seg6_min;
1230 	uint64_t ktime_seg6_max;
1231 	uint64_t ktime_seg7_total;
1232 	uint64_t ktime_seg7_min;
1233 	uint64_t ktime_seg7_max;
1234 	uint64_t ktime_seg8_total;
1235 	uint64_t ktime_seg8_min;
1236 	uint64_t ktime_seg8_max;
1237 	uint64_t ktime_seg9_total;
1238 	uint64_t ktime_seg9_min;
1239 	uint64_t ktime_seg9_max;
1240 	uint64_t ktime_seg10_total;
1241 	uint64_t ktime_seg10_min;
1242 	uint64_t ktime_seg10_max;
1243 #endif
1244 
1245 	struct hlist_node cpuhp;	/* used for cpuhp per hba callback */
1246 	struct timer_list cpuhp_poll_timer;
1247 	struct list_head poll_list;	/* slowpath eq polling list */
1248 #define LPFC_POLL_HB	1		/* slowpath heartbeat */
1249 #define LPFC_POLL_FASTPATH	0	/* called from fastpath */
1250 #define LPFC_POLL_SLOWPATH	1	/* called from slowpath */
1251 
1252 	char os_host_name[MAXHOSTNAMELEN];
1253 
1254 	/* SCSI host template information - for physical port */
1255 	struct scsi_host_template port_template;
1256 	/* SCSI host template information - for all vports */
1257 	struct scsi_host_template vport_template;
1258 	atomic_t dbg_log_idx;
1259 	atomic_t dbg_log_cnt;
1260 	atomic_t dbg_log_dmping;
1261 	struct dbg_log_ent dbg_log[DBG_LOG_SZ];
1262 };
1263 
1264 static inline struct Scsi_Host *
1265 lpfc_shost_from_vport(struct lpfc_vport *vport)
1266 {
1267 	return container_of((void *) vport, struct Scsi_Host, hostdata[0]);
1268 }
1269 
1270 static inline void
1271 lpfc_set_loopback_flag(struct lpfc_hba *phba)
1272 {
1273 	if (phba->cfg_topology == FLAGS_LOCAL_LB)
1274 		phba->link_flag |= LS_LOOPBACK_MODE;
1275 	else
1276 		phba->link_flag &= ~LS_LOOPBACK_MODE;
1277 }
1278 
1279 static inline int
1280 lpfc_is_link_up(struct lpfc_hba *phba)
1281 {
1282 	return  phba->link_state == LPFC_LINK_UP ||
1283 		phba->link_state == LPFC_CLEAR_LA ||
1284 		phba->link_state == LPFC_HBA_READY;
1285 }
1286 
1287 static inline void
1288 lpfc_worker_wake_up(struct lpfc_hba *phba)
1289 {
1290 	/* Set the lpfc data pending flag */
1291 	set_bit(LPFC_DATA_READY, &phba->data_flags);
1292 
1293 	/* Wake up worker thread */
1294 	wake_up(&phba->work_waitq);
1295 	return;
1296 }
1297 
1298 static inline int
1299 lpfc_readl(void __iomem *addr, uint32_t *data)
1300 {
1301 	uint32_t temp;
1302 	temp = readl(addr);
1303 	if (temp == 0xffffffff)
1304 		return -EIO;
1305 	*data = temp;
1306 	return 0;
1307 }
1308 
1309 static inline int
1310 lpfc_sli_read_hs(struct lpfc_hba *phba)
1311 {
1312 	/*
1313 	 * There was a link/board error. Read the status register to retrieve
1314 	 * the error event and process it.
1315 	 */
1316 	phba->sli.slistat.err_attn_event++;
1317 
1318 	/* Save status info and check for unplug error */
1319 	if (lpfc_readl(phba->HSregaddr, &phba->work_hs) ||
1320 		lpfc_readl(phba->MBslimaddr + 0xa8, &phba->work_status[0]) ||
1321 		lpfc_readl(phba->MBslimaddr + 0xac, &phba->work_status[1])) {
1322 		return -EIO;
1323 	}
1324 
1325 	/* Clear chip Host Attention error bit */
1326 	writel(HA_ERATT, phba->HAregaddr);
1327 	readl(phba->HAregaddr); /* flush */
1328 	phba->pport->stopped = 1;
1329 
1330 	return 0;
1331 }
1332 
1333 static inline struct lpfc_sli_ring *
1334 lpfc_phba_elsring(struct lpfc_hba *phba)
1335 {
1336 	/* Return NULL if sli_rev has become invalid due to bad fw */
1337 	if (phba->sli_rev != LPFC_SLI_REV4  &&
1338 	    phba->sli_rev != LPFC_SLI_REV3  &&
1339 	    phba->sli_rev != LPFC_SLI_REV2)
1340 		return NULL;
1341 
1342 	if (phba->sli_rev == LPFC_SLI_REV4) {
1343 		if (phba->sli4_hba.els_wq)
1344 			return phba->sli4_hba.els_wq->pring;
1345 		else
1346 			return NULL;
1347 	}
1348 	return &phba->sli.sli3_ring[LPFC_ELS_RING];
1349 }
1350 
1351 /**
1352  * lpfc_next_online_cpu - Finds next online CPU on cpumask
1353  * @mask: Pointer to phba's cpumask member.
1354  * @start: starting cpu index
1355  *
1356  * Note: If no valid cpu found, then nr_cpu_ids is returned.
1357  *
1358  **/
1359 static inline unsigned int
1360 lpfc_next_online_cpu(const struct cpumask *mask, unsigned int start)
1361 {
1362 	unsigned int cpu_it;
1363 
1364 	for_each_cpu_wrap(cpu_it, mask, start) {
1365 		if (cpu_online(cpu_it))
1366 			break;
1367 	}
1368 
1369 	return cpu_it;
1370 }
1371 /**
1372  * lpfc_sli4_mod_hba_eq_delay - update EQ delay
1373  * @phba: Pointer to HBA context object.
1374  * @q: The Event Queue to update.
1375  * @delay: The delay value (in us) to be written.
1376  *
1377  **/
1378 static inline void
1379 lpfc_sli4_mod_hba_eq_delay(struct lpfc_hba *phba, struct lpfc_queue *eq,
1380 			   u32 delay)
1381 {
1382 	struct lpfc_register reg_data;
1383 
1384 	reg_data.word0 = 0;
1385 	bf_set(lpfc_sliport_eqdelay_id, &reg_data, eq->queue_id);
1386 	bf_set(lpfc_sliport_eqdelay_delay, &reg_data, delay);
1387 	writel(reg_data.word0, phba->sli4_hba.u.if_type2.EQDregaddr);
1388 	eq->q_mode = delay;
1389 }
1390 
1391 
1392 /*
1393  * Macro that declares tables and a routine to perform enum type to
1394  * ascii string lookup.
1395  *
1396  * Defines a <key,value> table for an enum. Uses xxx_INIT defines for
1397  * the enum to populate the table.  Macro defines a routine (named
1398  * by caller) that will search all elements of the table for the key
1399  * and return the name string if found or "Unrecognized" if not found.
1400  */
1401 #define DECLARE_ENUM2STR_LOOKUP(routine, enum_name, enum_init)		\
1402 static struct {								\
1403 	enum enum_name		value;					\
1404 	char			*name;					\
1405 } fc_##enum_name##_e2str_names[] = enum_init;				\
1406 static const char *routine(enum enum_name table_key)			\
1407 {									\
1408 	int i;								\
1409 	char *name = "Unrecognized";					\
1410 									\
1411 	for (i = 0; i < ARRAY_SIZE(fc_##enum_name##_e2str_names); i++) {\
1412 		if (fc_##enum_name##_e2str_names[i].value == table_key) {\
1413 			name = fc_##enum_name##_e2str_names[i].name;	\
1414 			break;						\
1415 		}							\
1416 	}								\
1417 	return name;							\
1418 }
1419