xref: /openbmc/linux/drivers/scsi/lpfc/lpfc.h (revision 1b39eacd)
1 /*******************************************************************
2  * This file is part of the Emulex Linux Device Driver for         *
3  * Fibre Channel Host Bus Adapters.                                *
4  * Copyright (C) 2017 Broadcom. All Rights Reserved. The term      *
5  * “Broadcom” refers to Broadcom Limited 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_MIN_SG_SLI4_BUF_SZ	0x800	/* based on LPFC_DEFAULT_SG_SEG_CNT */
55 #define LPFC_MAX_SG_SLI4_SEG_CNT_DIF 128 /* sg element count per scsi cmnd */
56 #define LPFC_MAX_SG_SEG_CNT_DIF 512	/* sg element count per scsi cmnd  */
57 #define LPFC_MAX_SG_SEG_CNT	4096	/* sg element count per scsi cmnd */
58 #define LPFC_MAX_SGL_SEG_CNT	512	/* SGL element count per scsi cmnd */
59 #define LPFC_MAX_BPL_SEG_CNT	4096	/* BPL element count per scsi cmnd */
60 #define LPFC_MAX_NVME_SEG_CNT	128	/* max SGL element cnt per NVME cmnd */
61 
62 #define LPFC_MAX_SGE_SIZE       0x80000000 /* Maximum data allowed in a SGE */
63 #define LPFC_IOCB_LIST_CNT	2250	/* list of IOCBs for fast-path usage. */
64 #define LPFC_Q_RAMP_UP_INTERVAL 120     /* lun q_depth ramp up interval */
65 #define LPFC_VNAME_LEN		100	/* vport symbolic name length */
66 #define LPFC_TGTQ_INTERVAL	40000	/* Min amount of time between tgt
67 					   queue depth change in millisecs */
68 #define LPFC_TGTQ_RAMPUP_PCENT	5	/* Target queue rampup in percentage */
69 #define LPFC_MIN_TGT_QDEPTH	10
70 #define LPFC_MAX_TGT_QDEPTH	0xFFFF
71 
72 #define  LPFC_MAX_BUCKET_COUNT 20	/* Maximum no. of buckets for stat data
73 					   collection. */
74 /*
75  * Following time intervals are used of adjusting SCSI device
76  * queue depths when there are driver resource error or Firmware
77  * resource error.
78  */
79 /* 1 Second */
80 #define QUEUE_RAMP_DOWN_INTERVAL	(msecs_to_jiffies(1000 * 1))
81 
82 /* Number of exchanges reserved for discovery to complete */
83 #define LPFC_DISC_IOCB_BUFF_COUNT 20
84 
85 #define LPFC_HB_MBOX_INTERVAL   5	/* Heart beat interval in seconds. */
86 #define LPFC_HB_MBOX_TIMEOUT    30	/* Heart beat timeout  in seconds. */
87 
88 #define LPFC_LOOK_AHEAD_OFF	0	/* Look ahead logic is turned off */
89 
90 /* Error Attention event polling interval */
91 #define LPFC_ERATT_POLL_INTERVAL	5 /* EATT poll interval in seconds */
92 
93 /* Define macros for 64 bit support */
94 #define putPaddrLow(addr)    ((uint32_t) (0xffffffff & (u64)(addr)))
95 #define putPaddrHigh(addr)   ((uint32_t) (0xffffffff & (((u64)(addr))>>32)))
96 #define getPaddr(high, low)  ((dma_addr_t)( \
97 			     (( (u64)(high)<<16 ) << 16)|( (u64)(low))))
98 /* Provide maximum configuration definitions. */
99 #define LPFC_DRVR_TIMEOUT	16	/* driver iocb timeout value in sec */
100 #define FC_MAX_ADPTMSG		64
101 
102 #define MAX_HBAEVT	32
103 #define MAX_HBAS_NO_RESET 16
104 
105 /* Number of MSI-X vectors the driver uses */
106 #define LPFC_MSIX_VECTORS	2
107 
108 /* lpfc wait event data ready flag */
109 #define LPFC_DATA_READY		0	/* bit 0 */
110 
111 /* queue dump line buffer size */
112 #define LPFC_LBUF_SZ		128
113 
114 /* mailbox system shutdown options */
115 #define LPFC_MBX_NO_WAIT	0
116 #define LPFC_MBX_WAIT		1
117 
118 enum lpfc_polling_flags {
119 	ENABLE_FCP_RING_POLLING = 0x1,
120 	DISABLE_FCP_RING_INT    = 0x2
121 };
122 
123 struct perf_prof {
124 	uint16_t cmd_cpu[40];
125 	uint16_t rsp_cpu[40];
126 	uint16_t qh_cpu[40];
127 	uint16_t wqidx[40];
128 };
129 
130 /*
131  * Provide for FC4 TYPE x28 - NVME.  The
132  * bit mask for FCP and NVME is 0x8 identically
133  * because they are 32 bit positions distance.
134  */
135 #define LPFC_FC4_TYPE_BITMASK	0x00000100
136 
137 /* Provide DMA memory definitions the driver uses per port instance. */
138 struct lpfc_dmabuf {
139 	struct list_head list;
140 	void *virt;		/* virtual address ptr */
141 	dma_addr_t phys;	/* mapped address */
142 	uint32_t   buffer_tag;	/* used for tagged queue ring */
143 };
144 
145 struct lpfc_nvmet_ctxbuf {
146 	struct list_head list;
147 	struct lpfc_nvmet_rcv_ctx *context;
148 	struct lpfc_iocbq *iocbq;
149 	struct lpfc_sglq *sglq;
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 struct lpfc_scsi_buf;
240 
241 
242 /*
243  * lpfc stat counters
244  */
245 struct lpfc_stats {
246 	/* Statistics for ELS commands */
247 	uint32_t elsLogiCol;
248 	uint32_t elsRetryExceeded;
249 	uint32_t elsXmitRetry;
250 	uint32_t elsDelayRetry;
251 	uint32_t elsRcvDrop;
252 	uint32_t elsRcvFrame;
253 	uint32_t elsRcvRSCN;
254 	uint32_t elsRcvRNID;
255 	uint32_t elsRcvFARP;
256 	uint32_t elsRcvFARPR;
257 	uint32_t elsRcvFLOGI;
258 	uint32_t elsRcvPLOGI;
259 	uint32_t elsRcvADISC;
260 	uint32_t elsRcvPDISC;
261 	uint32_t elsRcvFAN;
262 	uint32_t elsRcvLOGO;
263 	uint32_t elsRcvPRLO;
264 	uint32_t elsRcvPRLI;
265 	uint32_t elsRcvLIRR;
266 	uint32_t elsRcvRLS;
267 	uint32_t elsRcvRPS;
268 	uint32_t elsRcvRPL;
269 	uint32_t elsRcvRRQ;
270 	uint32_t elsRcvRTV;
271 	uint32_t elsRcvECHO;
272 	uint32_t elsRcvLCB;
273 	uint32_t elsRcvRDP;
274 	uint32_t elsXmitFLOGI;
275 	uint32_t elsXmitFDISC;
276 	uint32_t elsXmitPLOGI;
277 	uint32_t elsXmitPRLI;
278 	uint32_t elsXmitADISC;
279 	uint32_t elsXmitLOGO;
280 	uint32_t elsXmitSCR;
281 	uint32_t elsXmitRNID;
282 	uint32_t elsXmitFARP;
283 	uint32_t elsXmitFARPR;
284 	uint32_t elsXmitACC;
285 	uint32_t elsXmitLSRJT;
286 
287 	uint32_t frameRcvBcast;
288 	uint32_t frameRcvMulti;
289 	uint32_t strayXmitCmpl;
290 	uint32_t frameXmitDelay;
291 	uint32_t xriCmdCmpl;
292 	uint32_t xriStatErr;
293 	uint32_t LinkUp;
294 	uint32_t LinkDown;
295 	uint32_t LinkMultiEvent;
296 	uint32_t NoRcvBuf;
297 	uint32_t fcpCmd;
298 	uint32_t fcpCmpl;
299 	uint32_t fcpRspErr;
300 	uint32_t fcpRemoteStop;
301 	uint32_t fcpPortRjt;
302 	uint32_t fcpPortBusy;
303 	uint32_t fcpError;
304 	uint32_t fcpLocalErr;
305 };
306 
307 struct lpfc_hba;
308 
309 
310 enum discovery_state {
311 	LPFC_VPORT_UNKNOWN     =  0,    /* vport state is unknown */
312 	LPFC_VPORT_FAILED      =  1,    /* vport has failed */
313 	LPFC_LOCAL_CFG_LINK    =  6,    /* local NPORT Id configured */
314 	LPFC_FLOGI             =  7,    /* FLOGI sent to Fabric */
315 	LPFC_FDISC             =  8,    /* FDISC sent for vport */
316 	LPFC_FABRIC_CFG_LINK   =  9,    /* Fabric assigned NPORT Id
317 				         * configured */
318 	LPFC_NS_REG            =  10,   /* Register with NameServer */
319 	LPFC_NS_QRY            =  11,   /* Query NameServer for NPort ID list */
320 	LPFC_BUILD_DISC_LIST   =  12,   /* Build ADISC and PLOGI lists for
321 				         * device authentication / discovery */
322 	LPFC_DISC_AUTH         =  13,   /* Processing ADISC list */
323 	LPFC_VPORT_READY       =  32,
324 };
325 
326 enum hba_state {
327 	LPFC_LINK_UNKNOWN    =   0,   /* HBA state is unknown */
328 	LPFC_WARM_START      =   1,   /* HBA state after selective reset */
329 	LPFC_INIT_START      =   2,   /* Initial state after board reset */
330 	LPFC_INIT_MBX_CMDS   =   3,   /* Initialize HBA with mbox commands */
331 	LPFC_LINK_DOWN       =   4,   /* HBA initialized, link is down */
332 	LPFC_LINK_UP         =   5,   /* Link is up  - issue READ_LA */
333 	LPFC_CLEAR_LA        =   6,   /* authentication cmplt - issue
334 				       * CLEAR_LA */
335 	LPFC_HBA_READY       =  32,
336 	LPFC_HBA_ERROR       =  -1
337 };
338 
339 struct lpfc_vport {
340 	struct lpfc_hba *phba;
341 	struct list_head listentry;
342 	uint8_t port_type;
343 #define LPFC_PHYSICAL_PORT 1
344 #define LPFC_NPIV_PORT  2
345 #define LPFC_FABRIC_PORT 3
346 	enum discovery_state port_state;
347 
348 	uint16_t vpi;
349 	uint16_t vfi;
350 	uint8_t vpi_state;
351 #define LPFC_VPI_REGISTERED	0x1
352 
353 	uint32_t fc_flag;	/* FC flags */
354 /* Several of these flags are HBA centric and should be moved to
355  * phba->link_flag (e.g. FC_PTP, FC_PUBLIC_LOOP)
356  */
357 #define FC_PT2PT                0x1	 /* pt2pt with no fabric */
358 #define FC_PT2PT_PLOGI          0x2	 /* pt2pt initiate PLOGI */
359 #define FC_DISC_TMO             0x4	 /* Discovery timer running */
360 #define FC_PUBLIC_LOOP          0x8	 /* Public loop */
361 #define FC_LBIT                 0x10	 /* LOGIN bit in loopinit set */
362 #define FC_RSCN_MODE            0x20	 /* RSCN cmd rcv'ed */
363 #define FC_NLP_MORE             0x40	 /* More node to process in node tbl */
364 #define FC_OFFLINE_MODE         0x80	 /* Interface is offline for diag */
365 #define FC_FABRIC               0x100	 /* We are fabric attached */
366 #define FC_VPORT_LOGO_RCVD      0x200    /* LOGO received on vport */
367 #define FC_RSCN_DISCOVERY       0x400	 /* Auth all devices after RSCN */
368 #define FC_LOGO_RCVD_DID_CHNG   0x800    /* FDISC on phys port detect DID chng*/
369 #define FC_SCSI_SCAN_TMO        0x4000	 /* scsi scan timer running */
370 #define FC_ABORT_DISCOVERY      0x8000	 /* we want to abort discovery */
371 #define FC_NDISC_ACTIVE         0x10000	 /* NPort discovery active */
372 #define FC_BYPASSED_MODE        0x20000	 /* NPort is in bypassed mode */
373 #define FC_VPORT_NEEDS_REG_VPI	0x80000  /* Needs to have its vpi registered */
374 #define FC_RSCN_DEFERRED	0x100000 /* A deferred RSCN being processed */
375 #define FC_VPORT_NEEDS_INIT_VPI 0x200000 /* Need to INIT_VPI before FDISC */
376 #define FC_VPORT_CVL_RCVD	0x400000 /* VLink failed due to CVL	 */
377 #define FC_VFI_REGISTERED	0x800000 /* VFI is registered */
378 #define FC_FDISC_COMPLETED	0x1000000/* FDISC completed */
379 #define FC_DISC_DELAYED		0x2000000/* Delay NPort discovery */
380 
381 	uint32_t ct_flags;
382 #define FC_CT_RFF_ID		0x1	 /* RFF_ID accepted by switch */
383 #define FC_CT_RNN_ID		0x2	 /* RNN_ID accepted by switch */
384 #define FC_CT_RSNN_NN		0x4	 /* RSNN_NN accepted by switch */
385 #define FC_CT_RSPN_ID		0x8	 /* RSPN_ID accepted by switch */
386 #define FC_CT_RFT_ID		0x10	 /* RFT_ID accepted by switch */
387 
388 	struct list_head fc_nodes;
389 
390 	/* Keep counters for the number of entries in each list. */
391 	uint16_t fc_plogi_cnt;
392 	uint16_t fc_adisc_cnt;
393 	uint16_t fc_reglogin_cnt;
394 	uint16_t fc_prli_cnt;
395 	uint16_t fc_unmap_cnt;
396 	uint16_t fc_map_cnt;
397 	uint16_t fc_npr_cnt;
398 	uint16_t fc_unused_cnt;
399 	struct serv_parm fc_sparam;	/* buffer for our service parameters */
400 
401 	uint32_t fc_myDID;	/* fibre channel S_ID */
402 	uint32_t fc_prevDID;	/* previous fibre channel S_ID */
403 	struct lpfc_name fabric_portname;
404 	struct lpfc_name fabric_nodename;
405 
406 	int32_t stopped;   /* HBA has not been restarted since last ERATT */
407 	uint8_t fc_linkspeed;	/* Link speed after last READ_LA */
408 
409 	uint32_t num_disc_nodes;	/* in addition to hba_state */
410 	uint32_t gidft_inp;		/* cnt of outstanding GID_FTs */
411 
412 	uint32_t fc_nlp_cnt;	/* outstanding NODELIST requests */
413 	uint32_t fc_rscn_id_cnt;	/* count of RSCNs payloads in list */
414 	uint32_t fc_rscn_flush;		/* flag use of fc_rscn_id_list */
415 	struct lpfc_dmabuf *fc_rscn_id_list[FC_MAX_HOLD_RSCN];
416 	struct lpfc_name fc_nodename;	/* fc nodename */
417 	struct lpfc_name fc_portname;	/* fc portname */
418 
419 	struct lpfc_work_evt disc_timeout_evt;
420 
421 	struct timer_list fc_disctmo;	/* Discovery rescue timer */
422 	uint8_t fc_ns_retry;	/* retries for fabric nameserver */
423 	uint32_t fc_prli_sent;	/* cntr for outstanding PRLIs */
424 
425 	spinlock_t work_port_lock;
426 	uint32_t work_port_events; /* Timeout to be handled  */
427 #define WORKER_DISC_TMO                0x1	/* vport: Discovery timeout */
428 #define WORKER_ELS_TMO                 0x2	/* vport: ELS timeout */
429 #define WORKER_DELAYED_DISC_TMO        0x8	/* vport: delayed discovery */
430 
431 #define WORKER_MBOX_TMO                0x100	/* hba: MBOX timeout */
432 #define WORKER_HB_TMO                  0x200	/* hba: Heart beat timeout */
433 #define WORKER_FABRIC_BLOCK_TMO        0x400	/* hba: fabric block timeout */
434 #define WORKER_RAMP_DOWN_QUEUE         0x800	/* hba: Decrease Q depth */
435 #define WORKER_RAMP_UP_QUEUE           0x1000	/* hba: Increase Q depth */
436 #define WORKER_SERVICE_TXQ             0x2000	/* hba: IOCBs on the txq */
437 
438 	struct timer_list els_tmofunc;
439 	struct timer_list delayed_disc_tmo;
440 
441 	int unreg_vpi_cmpl;
442 
443 	uint8_t load_flag;
444 #define FC_LOADING		0x1	/* HBA in process of loading drvr */
445 #define FC_UNLOADING		0x2	/* HBA in process of unloading drvr */
446 #define FC_ALLOW_FDMI		0x4	/* port is ready for FDMI requests */
447 	/* Vport Config Parameters */
448 	uint32_t cfg_scan_down;
449 	uint32_t cfg_lun_queue_depth;
450 	uint32_t cfg_nodev_tmo;
451 	uint32_t cfg_devloss_tmo;
452 	uint32_t cfg_restrict_login;
453 	uint32_t cfg_peer_port_login;
454 	uint32_t cfg_fcp_class;
455 	uint32_t cfg_use_adisc;
456 	uint32_t cfg_discovery_threads;
457 	uint32_t cfg_log_verbose;
458 	uint32_t cfg_max_luns;
459 	uint32_t cfg_enable_da_id;
460 	uint32_t cfg_max_scsicmpl_time;
461 	uint32_t cfg_tgt_queue_depth;
462 	uint32_t cfg_first_burst_size;
463 	uint32_t dev_loss_tmo_changed;
464 
465 	struct fc_vport *fc_vport;
466 
467 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
468 	struct dentry *debug_disc_trc;
469 	struct dentry *debug_nodelist;
470 	struct dentry *debug_nvmestat;
471 	struct dentry *debug_nvmektime;
472 	struct dentry *debug_cpucheck;
473 	struct dentry *vport_debugfs_root;
474 	struct lpfc_debugfs_trc *disc_trc;
475 	atomic_t disc_trc_cnt;
476 #endif
477 	uint8_t stat_data_enabled;
478 	uint8_t stat_data_blocked;
479 	struct list_head rcv_buffer_list;
480 	unsigned long rcv_buffer_time_stamp;
481 	uint32_t vport_flag;
482 #define STATIC_VPORT	1
483 #define FAWWPN_SET	2
484 #define FAWWPN_PARAM_CHG	4
485 
486 	uint16_t fdmi_num_disc;
487 	uint32_t fdmi_hba_mask;
488 	uint32_t fdmi_port_mask;
489 
490 	/* There is a single nvme instance per vport. */
491 	struct nvme_fc_local_port *localport;
492 	uint8_t  nvmei_support; /* driver supports NVME Initiator */
493 	uint32_t last_fcp_wqidx;
494 };
495 
496 struct hbq_s {
497 	uint16_t entry_count;	  /* Current number of HBQ slots */
498 	uint16_t buffer_count;	  /* Current number of buffers posted */
499 	uint32_t next_hbqPutIdx;  /* Index to next HBQ slot to use */
500 	uint32_t hbqPutIdx;	  /* HBQ slot to use */
501 	uint32_t local_hbqGetIdx; /* Local copy of Get index from Port */
502 	void    *hbq_virt;	  /* Virtual ptr to this hbq */
503 	struct list_head hbq_buffer_list;  /* buffers assigned to this HBQ */
504 				  /* Callback for HBQ buffer allocation */
505 	struct hbq_dmabuf *(*hbq_alloc_buffer) (struct lpfc_hba *);
506 				  /* Callback for HBQ buffer free */
507 	void               (*hbq_free_buffer) (struct lpfc_hba *,
508 					       struct hbq_dmabuf *);
509 };
510 
511 /* this matches the position in the lpfc_hbq_defs array */
512 #define LPFC_ELS_HBQ	0
513 #define LPFC_MAX_HBQS	1
514 
515 enum hba_temp_state {
516 	HBA_NORMAL_TEMP,
517 	HBA_OVER_TEMP
518 };
519 
520 enum intr_type_t {
521 	NONE = 0,
522 	INTx,
523 	MSI,
524 	MSIX,
525 };
526 
527 #define LPFC_CT_CTX_MAX		64
528 struct unsol_rcv_ct_ctx {
529 	uint32_t ctxt_id;
530 	uint32_t SID;
531 	uint32_t valid;
532 #define UNSOL_INVALID		0
533 #define UNSOL_VALID		1
534 	uint16_t oxid;
535 	uint16_t rxid;
536 };
537 
538 #define LPFC_USER_LINK_SPEED_AUTO	0	/* auto select (default)*/
539 #define LPFC_USER_LINK_SPEED_1G		1	/* 1 Gigabaud */
540 #define LPFC_USER_LINK_SPEED_2G		2	/* 2 Gigabaud */
541 #define LPFC_USER_LINK_SPEED_4G		4	/* 4 Gigabaud */
542 #define LPFC_USER_LINK_SPEED_8G		8	/* 8 Gigabaud */
543 #define LPFC_USER_LINK_SPEED_10G	10	/* 10 Gigabaud */
544 #define LPFC_USER_LINK_SPEED_16G	16	/* 16 Gigabaud */
545 #define LPFC_USER_LINK_SPEED_32G	32	/* 32 Gigabaud */
546 #define LPFC_USER_LINK_SPEED_MAX	LPFC_USER_LINK_SPEED_32G
547 #define LPFC_USER_LINK_SPEED_BITMAP  ((1ULL << LPFC_USER_LINK_SPEED_32G) | \
548 				     (1 << LPFC_USER_LINK_SPEED_16G) | \
549 				     (1 << LPFC_USER_LINK_SPEED_10G) | \
550 				     (1 << LPFC_USER_LINK_SPEED_8G) | \
551 				     (1 << LPFC_USER_LINK_SPEED_4G) | \
552 				     (1 << LPFC_USER_LINK_SPEED_2G) | \
553 				     (1 << LPFC_USER_LINK_SPEED_1G) | \
554 				     (1 << LPFC_USER_LINK_SPEED_AUTO))
555 #define LPFC_LINK_SPEED_STRING "0, 1, 2, 4, 8, 10, 16, 32"
556 
557 enum nemb_type {
558 	nemb_mse = 1,
559 	nemb_hbd
560 };
561 
562 enum mbox_type {
563 	mbox_rd = 1,
564 	mbox_wr
565 };
566 
567 enum dma_type {
568 	dma_mbox = 1,
569 	dma_ebuf
570 };
571 
572 enum sta_type {
573 	sta_pre_addr = 1,
574 	sta_pos_addr
575 };
576 
577 struct lpfc_mbox_ext_buf_ctx {
578 	uint32_t state;
579 #define LPFC_BSG_MBOX_IDLE		0
580 #define LPFC_BSG_MBOX_HOST              1
581 #define LPFC_BSG_MBOX_PORT		2
582 #define LPFC_BSG_MBOX_DONE		3
583 #define LPFC_BSG_MBOX_ABTS		4
584 	enum nemb_type nembType;
585 	enum mbox_type mboxType;
586 	uint32_t numBuf;
587 	uint32_t mbxTag;
588 	uint32_t seqNum;
589 	struct lpfc_dmabuf *mbx_dmabuf;
590 	struct list_head ext_dmabuf_list;
591 };
592 
593 struct lpfc_hba {
594 	/* SCSI interface function jump table entries */
595 	int (*lpfc_new_scsi_buf)
596 		(struct lpfc_vport *, int);
597 	struct lpfc_scsi_buf * (*lpfc_get_scsi_buf)
598 		(struct lpfc_hba *, struct lpfc_nodelist *);
599 	int (*lpfc_scsi_prep_dma_buf)
600 		(struct lpfc_hba *, struct lpfc_scsi_buf *);
601 	void (*lpfc_scsi_unprep_dma_buf)
602 		(struct lpfc_hba *, struct lpfc_scsi_buf *);
603 	void (*lpfc_release_scsi_buf)
604 		(struct lpfc_hba *, struct lpfc_scsi_buf *);
605 	void (*lpfc_rampdown_queue_depth)
606 		(struct lpfc_hba *);
607 	void (*lpfc_scsi_prep_cmnd)
608 		(struct lpfc_vport *, struct lpfc_scsi_buf *,
609 		 struct lpfc_nodelist *);
610 
611 	/* IOCB interface function jump table entries */
612 	int (*__lpfc_sli_issue_iocb)
613 		(struct lpfc_hba *, uint32_t,
614 		 struct lpfc_iocbq *, uint32_t);
615 	void (*__lpfc_sli_release_iocbq)(struct lpfc_hba *,
616 			 struct lpfc_iocbq *);
617 	int (*lpfc_hba_down_post)(struct lpfc_hba *phba);
618 	IOCB_t * (*lpfc_get_iocb_from_iocbq)
619 		(struct lpfc_iocbq *);
620 	void (*lpfc_scsi_cmd_iocb_cmpl)
621 		(struct lpfc_hba *, struct lpfc_iocbq *, struct lpfc_iocbq *);
622 
623 	/* MBOX interface function jump table entries */
624 	int (*lpfc_sli_issue_mbox)
625 		(struct lpfc_hba *, LPFC_MBOXQ_t *, uint32_t);
626 
627 	/* Slow-path IOCB process function jump table entries */
628 	void (*lpfc_sli_handle_slow_ring_event)
629 		(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
630 		 uint32_t mask);
631 
632 	/* INIT device interface function jump table entries */
633 	int (*lpfc_sli_hbq_to_firmware)
634 		(struct lpfc_hba *, uint32_t, struct hbq_dmabuf *);
635 	int (*lpfc_sli_brdrestart)
636 		(struct lpfc_hba *);
637 	int (*lpfc_sli_brdready)
638 		(struct lpfc_hba *, uint32_t);
639 	void (*lpfc_handle_eratt)
640 		(struct lpfc_hba *);
641 	void (*lpfc_stop_port)
642 		(struct lpfc_hba *);
643 	int (*lpfc_hba_init_link)
644 		(struct lpfc_hba *, uint32_t);
645 	int (*lpfc_hba_down_link)
646 		(struct lpfc_hba *, uint32_t);
647 	int (*lpfc_selective_reset)
648 		(struct lpfc_hba *);
649 
650 	int (*lpfc_bg_scsi_prep_dma_buf)
651 		(struct lpfc_hba *, struct lpfc_scsi_buf *);
652 	/* Add new entries here */
653 
654 	/* SLI4 specific HBA data structure */
655 	struct lpfc_sli4_hba sli4_hba;
656 
657 	struct workqueue_struct *wq;
658 
659 	struct lpfc_sli sli;
660 	uint8_t pci_dev_grp;	/* lpfc PCI dev group: 0x0, 0x1, 0x2,... */
661 	uint32_t sli_rev;		/* SLI2, SLI3, or SLI4 */
662 	uint32_t sli3_options;		/* Mask of enabled SLI3 options */
663 #define LPFC_SLI3_HBQ_ENABLED		0x01
664 #define LPFC_SLI3_NPIV_ENABLED		0x02
665 #define LPFC_SLI3_VPORT_TEARDOWN	0x04
666 #define LPFC_SLI3_CRP_ENABLED		0x08
667 #define LPFC_SLI3_BG_ENABLED		0x20
668 #define LPFC_SLI3_DSS_ENABLED		0x40
669 #define LPFC_SLI4_PERFH_ENABLED		0x80
670 #define LPFC_SLI4_PHWQ_ENABLED		0x100
671 	uint32_t iocb_cmd_size;
672 	uint32_t iocb_rsp_size;
673 
674 	enum hba_state link_state;
675 	uint32_t link_flag;	/* link state flags */
676 #define LS_LOOPBACK_MODE      0x1	/* NPort is in Loopback mode */
677 					/* This flag is set while issuing */
678 					/* INIT_LINK mailbox command */
679 #define LS_NPIV_FAB_SUPPORTED 0x2	/* Fabric supports NPIV */
680 #define LS_IGNORE_ERATT       0x4	/* intr handler should ignore ERATT */
681 #define LS_MDS_LINK_DOWN      0x8	/* MDS Diagnostics Link Down */
682 #define LS_MDS_LOOPBACK      0x16	/* MDS Diagnostics Link Up (Loopback) */
683 
684 	uint32_t hba_flag;	/* hba generic flags */
685 #define HBA_ERATT_HANDLED	0x1 /* This flag is set when eratt handled */
686 #define DEFER_ERATT		0x2 /* Deferred error attention in progress */
687 #define HBA_FCOE_MODE		0x4 /* HBA function in FCoE Mode */
688 #define HBA_SP_QUEUE_EVT	0x8 /* Slow-path qevt posted to worker thread*/
689 #define HBA_POST_RECEIVE_BUFFER 0x10 /* Rcv buffers need to be posted */
690 #define FCP_XRI_ABORT_EVENT	0x20
691 #define ELS_XRI_ABORT_EVENT	0x40
692 #define ASYNC_EVENT		0x80
693 #define LINK_DISABLED		0x100 /* Link disabled by user */
694 #define FCF_TS_INPROG           0x200 /* FCF table scan in progress */
695 #define FCF_RR_INPROG           0x400 /* FCF roundrobin flogi in progress */
696 #define HBA_FIP_SUPPORT		0x800 /* FIP support in HBA */
697 #define HBA_AER_ENABLED		0x1000 /* AER enabled with HBA */
698 #define HBA_DEVLOSS_TMO         0x2000 /* HBA in devloss timeout */
699 #define HBA_RRQ_ACTIVE		0x4000 /* process the rrq active list */
700 #define HBA_FCP_IOQ_FLUSH	0x8000 /* FCP I/O queues being flushed */
701 #define HBA_FW_DUMP_OP		0x10000 /* Skips fn reset before FW dump */
702 #define HBA_RECOVERABLE_UE	0x20000 /* Firmware supports recoverable UE */
703 #define HBA_FORCED_LINK_SPEED	0x40000 /*
704 					 * Firmware supports Forced Link Speed
705 					 * capability
706 					 */
707 #define HBA_NVME_IOQ_FLUSH      0x80000 /* NVME IO queues flushed. */
708 #define NVME_XRI_ABORT_EVENT	0x100000
709 
710 	uint32_t fcp_ring_in_use; /* When polling test if intr-hndlr active*/
711 	struct lpfc_dmabuf slim2p;
712 
713 	MAILBOX_t *mbox;
714 	uint32_t *mbox_ext;
715 	struct lpfc_mbox_ext_buf_ctx mbox_ext_buf_ctx;
716 	uint32_t ha_copy;
717 	struct _PCB *pcb;
718 	struct _IOCB *IOCBs;
719 
720 	struct lpfc_dmabuf hbqslimp;
721 
722 	uint16_t pci_cfg_value;
723 
724 	uint8_t fc_linkspeed;	/* Link speed after last READ_LA */
725 
726 	uint32_t fc_eventTag;	/* event tag for link attention */
727 	uint32_t link_events;
728 
729 	/* These fields used to be binfo */
730 	uint32_t fc_pref_DID;	/* preferred D_ID */
731 	uint8_t  fc_pref_ALPA;	/* preferred AL_PA */
732 	uint32_t fc_edtovResol; /* E_D_TOV timer resolution */
733 	uint32_t fc_edtov;	/* E_D_TOV timer value */
734 	uint32_t fc_arbtov;	/* ARB_TOV timer value */
735 	uint32_t fc_ratov;	/* R_A_TOV timer value */
736 	uint32_t fc_rttov;	/* R_T_TOV timer value */
737 	uint32_t fc_altov;	/* AL_TOV timer value */
738 	uint32_t fc_crtov;	/* C_R_TOV timer value */
739 
740 	struct serv_parm fc_fabparam;	/* fabric service parameters buffer */
741 	uint8_t alpa_map[128];	/* AL_PA map from READ_LA */
742 
743 	uint32_t lmt;
744 
745 	uint32_t fc_topology;	/* link topology, from LINK INIT */
746 	uint32_t fc_topology_changed;	/* link topology, from LINK INIT */
747 
748 	struct lpfc_stats fc_stat;
749 
750 	struct lpfc_nodelist fc_fcpnodev; /* nodelist entry for no device */
751 	uint32_t nport_event_cnt;	/* timestamp for nlplist entry */
752 
753 	uint8_t  wwnn[8];
754 	uint8_t  wwpn[8];
755 	uint32_t RandomData[7];
756 	uint8_t  fcp_embed_io;
757 	uint8_t  nvme_support;	/* Firmware supports NVME */
758 	uint8_t  nvmet_support;	/* driver supports NVMET */
759 #define LPFC_NVMET_MAX_PORTS	32
760 	uint8_t  mds_diags_support;
761 	uint32_t initial_imax;
762 	uint8_t  bbcredit_support;
763 
764 	/* HBA Config Parameters */
765 	uint32_t cfg_ack0;
766 	uint32_t cfg_enable_npiv;
767 	uint32_t cfg_enable_rrq;
768 	uint32_t cfg_topology;
769 	uint32_t cfg_link_speed;
770 #define LPFC_FCF_FOV 1		/* Fast fcf failover */
771 #define LPFC_FCF_PRIORITY 2	/* Priority fcf failover */
772 	uint32_t cfg_fcf_failover_policy;
773 	uint32_t cfg_fcp_io_sched;
774 	uint32_t cfg_fcp2_no_tgt_reset;
775 	uint32_t cfg_cr_delay;
776 	uint32_t cfg_cr_count;
777 	uint32_t cfg_multi_ring_support;
778 	uint32_t cfg_multi_ring_rctl;
779 	uint32_t cfg_multi_ring_type;
780 	uint32_t cfg_poll;
781 	uint32_t cfg_poll_tmo;
782 	uint32_t cfg_task_mgmt_tmo;
783 	uint32_t cfg_use_msi;
784 	uint32_t cfg_auto_imax;
785 	uint32_t cfg_fcp_imax;
786 	uint32_t cfg_fcp_cpu_map;
787 	uint32_t cfg_fcp_io_channel;
788 	uint32_t cfg_suppress_rsp;
789 	uint32_t cfg_nvme_oas;
790 	uint32_t cfg_nvme_io_channel;
791 	uint32_t cfg_nvmet_mrq;
792 	uint32_t cfg_enable_nvmet;
793 	uint32_t cfg_nvme_enable_fb;
794 	uint32_t cfg_nvmet_fb_size;
795 	uint32_t cfg_total_seg_cnt;
796 	uint32_t cfg_sg_seg_cnt;
797 	uint32_t cfg_nvme_seg_cnt;
798 	uint32_t cfg_sg_dma_buf_size;
799 	uint64_t cfg_soft_wwnn;
800 	uint64_t cfg_soft_wwpn;
801 	uint32_t cfg_hba_queue_depth;
802 	uint32_t cfg_enable_hba_reset;
803 	uint32_t cfg_enable_hba_heartbeat;
804 	uint32_t cfg_fof;
805 	uint32_t cfg_EnableXLane;
806 	uint8_t cfg_oas_tgt_wwpn[8];
807 	uint8_t cfg_oas_vpt_wwpn[8];
808 	uint32_t cfg_oas_lun_state;
809 #define OAS_LUN_ENABLE	1
810 #define OAS_LUN_DISABLE	0
811 	uint32_t cfg_oas_lun_status;
812 #define OAS_LUN_STATUS_EXISTS	0x01
813 	uint32_t cfg_oas_flags;
814 #define OAS_FIND_ANY_VPORT	0x01
815 #define OAS_FIND_ANY_TARGET	0x02
816 #define OAS_LUN_VALID	0x04
817 	uint32_t cfg_oas_priority;
818 	uint32_t cfg_XLanePriority;
819 	uint32_t cfg_enable_bg;
820 	uint32_t cfg_prot_mask;
821 	uint32_t cfg_prot_guard;
822 	uint32_t cfg_hostmem_hgp;
823 	uint32_t cfg_log_verbose;
824 	uint32_t cfg_aer_support;
825 	uint32_t cfg_sriov_nr_virtfn;
826 	uint32_t cfg_request_firmware_upgrade;
827 	uint32_t cfg_iocb_cnt;
828 	uint32_t cfg_suppress_link_up;
829 	uint32_t cfg_rrq_xri_bitmap_sz;
830 	uint32_t cfg_delay_discovery;
831 	uint32_t cfg_sli_mode;
832 #define LPFC_INITIALIZE_LINK              0	/* do normal init_link mbox */
833 #define LPFC_DELAY_INIT_LINK              1	/* layered driver hold off */
834 #define LPFC_DELAY_INIT_LINK_INDEFINITELY 2	/* wait, manual intervention */
835 	uint32_t cfg_enable_dss;
836 	uint32_t cfg_fdmi_on;
837 #define LPFC_FDMI_NO_SUPPORT	0	/* FDMI not supported */
838 #define LPFC_FDMI_SUPPORT	1	/* FDMI supported? */
839 	uint32_t cfg_enable_SmartSAN;
840 	uint32_t cfg_enable_mds_diags;
841 	uint32_t cfg_enable_fc4_type;
842 	uint32_t cfg_enable_bbcr;	/*Enable BB Credit Recovery*/
843 	uint32_t cfg_xri_split;
844 #define LPFC_ENABLE_FCP  1
845 #define LPFC_ENABLE_NVME 2
846 #define LPFC_ENABLE_BOTH 3
847 	uint32_t io_channel_irqs;	/* number of irqs for io channels */
848 	struct nvmet_fc_target_port *targetport;
849 	lpfc_vpd_t vpd;		/* vital product data */
850 
851 	struct pci_dev *pcidev;
852 	struct list_head      work_list;
853 	uint32_t              work_ha;      /* Host Attention Bits for WT */
854 	uint32_t              work_ha_mask; /* HA Bits owned by WT        */
855 	uint32_t              work_hs;      /* HS stored in case of ERRAT */
856 	uint32_t              work_status[2]; /* Extra status from SLIM */
857 
858 	wait_queue_head_t    work_waitq;
859 	struct task_struct   *worker_thread;
860 	unsigned long data_flags;
861 
862 	uint32_t hbq_in_use;		/* HBQs in use flag */
863 	uint32_t hbq_count;	        /* Count of configured HBQs */
864 	struct hbq_s hbqs[LPFC_MAX_HBQS]; /* local copy of hbq indicies  */
865 
866 	atomic_t fcp_qidx;         /* next FCP WQ (RR Policy) */
867 	atomic_t nvme_qidx;        /* next NVME WQ (RR Policy) */
868 
869 	phys_addr_t pci_bar0_map;     /* Physical address for PCI BAR0 */
870 	phys_addr_t pci_bar1_map;     /* Physical address for PCI BAR1 */
871 	phys_addr_t pci_bar2_map;     /* Physical address for PCI BAR2 */
872 	void __iomem *slim_memmap_p;	/* Kernel memory mapped address for
873 					   PCI BAR0 */
874 	void __iomem *ctrl_regs_memmap_p;/* Kernel memory mapped address for
875 					    PCI BAR2 */
876 
877 	void __iomem *pci_bar0_memmap_p; /* Kernel memory mapped address for
878 					    PCI BAR0 with dual-ULP support */
879 	void __iomem *pci_bar2_memmap_p; /* Kernel memory mapped address for
880 					    PCI BAR2 with dual-ULP support */
881 	void __iomem *pci_bar4_memmap_p; /* Kernel memory mapped address for
882 					    PCI BAR4 with dual-ULP support */
883 #define PCI_64BIT_BAR0	0
884 #define PCI_64BIT_BAR2	2
885 #define PCI_64BIT_BAR4	4
886 	void __iomem *MBslimaddr;	/* virtual address for mbox cmds */
887 	void __iomem *HAregaddr;	/* virtual address for host attn reg */
888 	void __iomem *CAregaddr;	/* virtual address for chip attn reg */
889 	void __iomem *HSregaddr;	/* virtual address for host status
890 					   reg */
891 	void __iomem *HCregaddr;	/* virtual address for host ctl reg */
892 
893 	struct lpfc_hgp __iomem *host_gp; /* Host side get/put pointers */
894 	struct lpfc_pgp   *port_gp;
895 	uint32_t __iomem  *hbq_put;     /* Address in SLIM to HBQ put ptrs */
896 	uint32_t          *hbq_get;     /* Host mem address of HBQ get ptrs */
897 
898 	int brd_no;			/* FC board number */
899 	char SerialNumber[32];		/* adapter Serial Number */
900 	char OptionROMVersion[32];	/* adapter BIOS / Fcode version */
901 	char ModelDesc[256];		/* Model Description */
902 	char ModelName[80];		/* Model Name */
903 	char ProgramType[256];		/* Program Type */
904 	char Port[20];			/* Port No */
905 	uint8_t vpd_flag;               /* VPD data flag */
906 
907 #define VPD_MODEL_DESC      0x1         /* valid vpd model description */
908 #define VPD_MODEL_NAME      0x2         /* valid vpd model name */
909 #define VPD_PROGRAM_TYPE    0x4         /* valid vpd program type */
910 #define VPD_PORT            0x8         /* valid vpd port data */
911 #define VPD_MASK            0xf         /* mask for any vpd data */
912 
913 	uint8_t soft_wwn_enable;
914 
915 	struct timer_list fcp_poll_timer;
916 	struct timer_list eratt_poll;
917 	uint32_t eratt_poll_interval;
918 
919 	/*
920 	 * stat  counters
921 	 */
922 	atomic_t fc4ScsiInputRequests;
923 	atomic_t fc4ScsiOutputRequests;
924 	atomic_t fc4ScsiControlRequests;
925 	atomic_t fc4ScsiIoCmpls;
926 	atomic_t fc4NvmeInputRequests;
927 	atomic_t fc4NvmeOutputRequests;
928 	atomic_t fc4NvmeControlRequests;
929 	atomic_t fc4NvmeIoCmpls;
930 	atomic_t fc4NvmeLsRequests;
931 	atomic_t fc4NvmeLsCmpls;
932 
933 	uint64_t bg_guard_err_cnt;
934 	uint64_t bg_apptag_err_cnt;
935 	uint64_t bg_reftag_err_cnt;
936 
937 	/* fastpath list. */
938 	spinlock_t scsi_buf_list_get_lock;  /* SCSI buf alloc list lock */
939 	spinlock_t scsi_buf_list_put_lock;  /* SCSI buf free list lock */
940 	struct list_head lpfc_scsi_buf_list_get;
941 	struct list_head lpfc_scsi_buf_list_put;
942 	uint32_t total_scsi_bufs;
943 	spinlock_t nvme_buf_list_get_lock;  /* NVME buf alloc list lock */
944 	spinlock_t nvme_buf_list_put_lock;  /* NVME buf free list lock */
945 	struct list_head lpfc_nvme_buf_list_get;
946 	struct list_head lpfc_nvme_buf_list_put;
947 	uint32_t total_nvme_bufs;
948 	struct list_head lpfc_iocb_list;
949 	uint32_t total_iocbq_bufs;
950 	struct list_head active_rrq_list;
951 	spinlock_t hbalock;
952 
953 	/* dma_mem_pools */
954 	struct dma_pool *lpfc_sg_dma_buf_pool;
955 	struct dma_pool *lpfc_mbuf_pool;
956 	struct dma_pool *lpfc_hrb_pool;	/* header receive buffer pool */
957 	struct dma_pool *lpfc_drb_pool; /* data receive buffer pool */
958 	struct dma_pool *lpfc_nvmet_drb_pool; /* data receive buffer pool */
959 	struct dma_pool *lpfc_hbq_pool;	/* SLI3 hbq buffer pool */
960 	struct dma_pool *txrdy_payload_pool;
961 	struct lpfc_dma_pool lpfc_mbuf_safety_pool;
962 
963 	mempool_t *mbox_mem_pool;
964 	mempool_t *nlp_mem_pool;
965 	mempool_t *rrq_pool;
966 	mempool_t *active_rrq_pool;
967 
968 	struct fc_host_statistics link_stats;
969 	enum intr_type_t intr_type;
970 	uint32_t intr_mode;
971 #define LPFC_INTR_ERROR	0xFFFFFFFF
972 	struct list_head port_list;
973 	struct lpfc_vport *pport;	/* physical lpfc_vport pointer */
974 	uint16_t max_vpi;		/* Maximum virtual nports */
975 #define LPFC_MAX_VPI 0xFFFF		/* Max number of VPI supported */
976 	uint16_t max_vports;            /*
977 					 * For IOV HBAs max_vpi can change
978 					 * after a reset. max_vports is max
979 					 * number of vports present. This can
980 					 * be greater than max_vpi.
981 					 */
982 	uint16_t vpi_base;
983 	uint16_t vfi_base;
984 	unsigned long *vpi_bmask;	/* vpi allocation table */
985 	uint16_t *vpi_ids;
986 	uint16_t vpi_count;
987 	struct list_head lpfc_vpi_blk_list;
988 
989 	/* Data structure used by fabric iocb scheduler */
990 	struct list_head fabric_iocb_list;
991 	atomic_t fabric_iocb_count;
992 	struct timer_list fabric_block_timer;
993 	unsigned long bit_flags;
994 #define	FABRIC_COMANDS_BLOCKED	0
995 	atomic_t num_rsrc_err;
996 	atomic_t num_cmd_success;
997 	unsigned long last_rsrc_error_time;
998 	unsigned long last_ramp_down_time;
999 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
1000 	struct dentry *hba_debugfs_root;
1001 	atomic_t debugfs_vport_count;
1002 	struct dentry *debug_hbqinfo;
1003 	struct dentry *debug_dumpHostSlim;
1004 	struct dentry *debug_dumpHBASlim;
1005 	struct dentry *debug_dumpData;   /* BlockGuard BPL */
1006 	struct dentry *debug_dumpDif;    /* BlockGuard BPL */
1007 	struct dentry *debug_InjErrLBA;  /* LBA to inject errors at */
1008 	struct dentry *debug_InjErrNPortID;  /* NPortID to inject errors at */
1009 	struct dentry *debug_InjErrWWPN;  /* WWPN to inject errors at */
1010 	struct dentry *debug_writeGuard; /* inject write guard_tag errors */
1011 	struct dentry *debug_writeApp;   /* inject write app_tag errors */
1012 	struct dentry *debug_writeRef;   /* inject write ref_tag errors */
1013 	struct dentry *debug_readGuard;  /* inject read guard_tag errors */
1014 	struct dentry *debug_readApp;    /* inject read app_tag errors */
1015 	struct dentry *debug_readRef;    /* inject read ref_tag errors */
1016 
1017 	struct dentry *debug_nvmeio_trc;
1018 	struct lpfc_debugfs_nvmeio_trc *nvmeio_trc;
1019 	atomic_t nvmeio_trc_cnt;
1020 	uint32_t nvmeio_trc_size;
1021 	uint32_t nvmeio_trc_output_idx;
1022 
1023 	/* T10 DIF error injection */
1024 	uint32_t lpfc_injerr_wgrd_cnt;
1025 	uint32_t lpfc_injerr_wapp_cnt;
1026 	uint32_t lpfc_injerr_wref_cnt;
1027 	uint32_t lpfc_injerr_rgrd_cnt;
1028 	uint32_t lpfc_injerr_rapp_cnt;
1029 	uint32_t lpfc_injerr_rref_cnt;
1030 	uint32_t lpfc_injerr_nportid;
1031 	struct lpfc_name lpfc_injerr_wwpn;
1032 	sector_t lpfc_injerr_lba;
1033 #define LPFC_INJERR_LBA_OFF	(sector_t)(-1)
1034 
1035 	struct dentry *debug_slow_ring_trc;
1036 	struct lpfc_debugfs_trc *slow_ring_trc;
1037 	atomic_t slow_ring_trc_cnt;
1038 	/* iDiag debugfs sub-directory */
1039 	struct dentry *idiag_root;
1040 	struct dentry *idiag_pci_cfg;
1041 	struct dentry *idiag_bar_acc;
1042 	struct dentry *idiag_que_info;
1043 	struct dentry *idiag_que_acc;
1044 	struct dentry *idiag_drb_acc;
1045 	struct dentry *idiag_ctl_acc;
1046 	struct dentry *idiag_mbx_acc;
1047 	struct dentry *idiag_ext_acc;
1048 	uint8_t lpfc_idiag_last_eq;
1049 #endif
1050 	uint16_t nvmeio_trc_on;
1051 
1052 	/* Used for deferred freeing of ELS data buffers */
1053 	struct list_head elsbuf;
1054 	int elsbuf_cnt;
1055 	int elsbuf_prev_cnt;
1056 
1057 	uint8_t temp_sensor_support;
1058 	/* Fields used for heart beat. */
1059 	unsigned long last_eqdelay_time;
1060 	unsigned long last_completion_time;
1061 	unsigned long skipped_hb;
1062 	struct timer_list hb_tmofunc;
1063 	uint8_t hb_outstanding;
1064 	struct timer_list rrq_tmr;
1065 	enum hba_temp_state over_temp_state;
1066 	/* ndlp reference management */
1067 	spinlock_t ndlp_lock;
1068 	/*
1069 	 * Following bit will be set for all buffer tags which are not
1070 	 * associated with any HBQ.
1071 	 */
1072 #define QUE_BUFTAG_BIT  (1<<31)
1073 	uint32_t buffer_tag_count;
1074 	int wait_4_mlo_maint_flg;
1075 	wait_queue_head_t wait_4_mlo_m_q;
1076 	/* data structure used for latency data collection */
1077 #define LPFC_NO_BUCKET	   0
1078 #define LPFC_LINEAR_BUCKET 1
1079 #define LPFC_POWER2_BUCKET 2
1080 	uint8_t  bucket_type;
1081 	uint32_t bucket_base;
1082 	uint32_t bucket_step;
1083 
1084 /* Maximum number of events that can be outstanding at any time*/
1085 #define LPFC_MAX_EVT_COUNT 512
1086 	atomic_t fast_event_count;
1087 	uint32_t fcoe_eventtag;
1088 	uint32_t fcoe_eventtag_at_fcf_scan;
1089 	uint32_t fcoe_cvl_eventtag;
1090 	uint32_t fcoe_cvl_eventtag_attn;
1091 	struct lpfc_fcf fcf;
1092 	uint8_t fc_map[3];
1093 	uint8_t valid_vlan;
1094 	uint16_t vlan_id;
1095 	struct list_head fcf_conn_rec_list;
1096 
1097 	spinlock_t ct_ev_lock; /* synchronize access to ct_ev_waiters */
1098 	struct list_head ct_ev_waiters;
1099 	struct unsol_rcv_ct_ctx ct_ctx[LPFC_CT_CTX_MAX];
1100 	uint32_t ctx_idx;
1101 
1102 	uint8_t menlo_flag;	/* menlo generic flags */
1103 #define HBA_MENLO_SUPPORT	0x1 /* HBA supports menlo commands */
1104 	uint32_t iocb_cnt;
1105 	uint32_t iocb_max;
1106 	atomic_t sdev_cnt;
1107 	uint8_t fips_spec_rev;
1108 	uint8_t fips_level;
1109 	spinlock_t devicelock;	/* lock for luns list */
1110 	mempool_t *device_data_mem_pool;
1111 	struct list_head luns;
1112 #define LPFC_TRANSGRESSION_HIGH_TEMPERATURE	0x0080
1113 #define LPFC_TRANSGRESSION_LOW_TEMPERATURE	0x0040
1114 #define LPFC_TRANSGRESSION_HIGH_VOLTAGE		0x0020
1115 #define LPFC_TRANSGRESSION_LOW_VOLTAGE		0x0010
1116 #define LPFC_TRANSGRESSION_HIGH_TXBIAS		0x0008
1117 #define LPFC_TRANSGRESSION_LOW_TXBIAS		0x0004
1118 #define LPFC_TRANSGRESSION_HIGH_TXPOWER		0x0002
1119 #define LPFC_TRANSGRESSION_LOW_TXPOWER		0x0001
1120 #define LPFC_TRANSGRESSION_HIGH_RXPOWER		0x8000
1121 #define LPFC_TRANSGRESSION_LOW_RXPOWER		0x4000
1122 	uint16_t sfp_alarm;
1123 	uint16_t sfp_warning;
1124 
1125 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
1126 #define LPFC_CHECK_CPU_CNT    32
1127 	uint32_t cpucheck_rcv_io[LPFC_CHECK_CPU_CNT];
1128 	uint32_t cpucheck_xmt_io[LPFC_CHECK_CPU_CNT];
1129 	uint32_t cpucheck_cmpl_io[LPFC_CHECK_CPU_CNT];
1130 	uint32_t cpucheck_ccmpl_io[LPFC_CHECK_CPU_CNT];
1131 	uint16_t cpucheck_on;
1132 #define LPFC_CHECK_OFF		0
1133 #define LPFC_CHECK_NVME_IO	1
1134 #define LPFC_CHECK_NVMET_RCV	2
1135 #define LPFC_CHECK_NVMET_IO	4
1136 	uint16_t ktime_on;
1137 	uint64_t ktime_data_samples;
1138 	uint64_t ktime_status_samples;
1139 	uint64_t ktime_last_cmd;
1140 	uint64_t ktime_seg1_total;
1141 	uint64_t ktime_seg1_min;
1142 	uint64_t ktime_seg1_max;
1143 	uint64_t ktime_seg2_total;
1144 	uint64_t ktime_seg2_min;
1145 	uint64_t ktime_seg2_max;
1146 	uint64_t ktime_seg3_total;
1147 	uint64_t ktime_seg3_min;
1148 	uint64_t ktime_seg3_max;
1149 	uint64_t ktime_seg4_total;
1150 	uint64_t ktime_seg4_min;
1151 	uint64_t ktime_seg4_max;
1152 	uint64_t ktime_seg5_total;
1153 	uint64_t ktime_seg5_min;
1154 	uint64_t ktime_seg5_max;
1155 	uint64_t ktime_seg6_total;
1156 	uint64_t ktime_seg6_min;
1157 	uint64_t ktime_seg6_max;
1158 	uint64_t ktime_seg7_total;
1159 	uint64_t ktime_seg7_min;
1160 	uint64_t ktime_seg7_max;
1161 	uint64_t ktime_seg8_total;
1162 	uint64_t ktime_seg8_min;
1163 	uint64_t ktime_seg8_max;
1164 	uint64_t ktime_seg9_total;
1165 	uint64_t ktime_seg9_min;
1166 	uint64_t ktime_seg9_max;
1167 	uint64_t ktime_seg10_total;
1168 	uint64_t ktime_seg10_min;
1169 	uint64_t ktime_seg10_max;
1170 #endif
1171 };
1172 
1173 static inline struct Scsi_Host *
1174 lpfc_shost_from_vport(struct lpfc_vport *vport)
1175 {
1176 	return container_of((void *) vport, struct Scsi_Host, hostdata[0]);
1177 }
1178 
1179 static inline void
1180 lpfc_set_loopback_flag(struct lpfc_hba *phba)
1181 {
1182 	if (phba->cfg_topology == FLAGS_LOCAL_LB)
1183 		phba->link_flag |= LS_LOOPBACK_MODE;
1184 	else
1185 		phba->link_flag &= ~LS_LOOPBACK_MODE;
1186 }
1187 
1188 static inline int
1189 lpfc_is_link_up(struct lpfc_hba *phba)
1190 {
1191 	return  phba->link_state == LPFC_LINK_UP ||
1192 		phba->link_state == LPFC_CLEAR_LA ||
1193 		phba->link_state == LPFC_HBA_READY;
1194 }
1195 
1196 static inline void
1197 lpfc_worker_wake_up(struct lpfc_hba *phba)
1198 {
1199 	/* Set the lpfc data pending flag */
1200 	set_bit(LPFC_DATA_READY, &phba->data_flags);
1201 
1202 	/* Wake up worker thread */
1203 	wake_up(&phba->work_waitq);
1204 	return;
1205 }
1206 
1207 static inline int
1208 lpfc_readl(void __iomem *addr, uint32_t *data)
1209 {
1210 	uint32_t temp;
1211 	temp = readl(addr);
1212 	if (temp == 0xffffffff)
1213 		return -EIO;
1214 	*data = temp;
1215 	return 0;
1216 }
1217 
1218 static inline int
1219 lpfc_sli_read_hs(struct lpfc_hba *phba)
1220 {
1221 	/*
1222 	 * There was a link/board error. Read the status register to retrieve
1223 	 * the error event and process it.
1224 	 */
1225 	phba->sli.slistat.err_attn_event++;
1226 
1227 	/* Save status info and check for unplug error */
1228 	if (lpfc_readl(phba->HSregaddr, &phba->work_hs) ||
1229 		lpfc_readl(phba->MBslimaddr + 0xa8, &phba->work_status[0]) ||
1230 		lpfc_readl(phba->MBslimaddr + 0xac, &phba->work_status[1])) {
1231 		return -EIO;
1232 	}
1233 
1234 	/* Clear chip Host Attention error bit */
1235 	writel(HA_ERATT, phba->HAregaddr);
1236 	readl(phba->HAregaddr); /* flush */
1237 	phba->pport->stopped = 1;
1238 
1239 	return 0;
1240 }
1241 
1242 static inline struct lpfc_sli_ring *
1243 lpfc_phba_elsring(struct lpfc_hba *phba)
1244 {
1245 	if (phba->sli_rev == LPFC_SLI_REV4) {
1246 		if (phba->sli4_hba.els_wq)
1247 			return phba->sli4_hba.els_wq->pring;
1248 		else
1249 			return NULL;
1250 	}
1251 	return &phba->sli.sli3_ring[LPFC_ELS_RING];
1252 }
1253