1 /*******************************************************************
2  * This file is part of the Emulex Linux Device Driver for         *
3  * Fibre Channel Host Bus Adapters.                                *
4  * Copyright (C) 2017-2023 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/hashtable.h>
26 #include <linux/ktime.h>
27 #include <linux/workqueue.h>
28 
29 #if defined(CONFIG_DEBUG_FS) && !defined(CONFIG_SCSI_LPFC_DEBUG_FS)
30 #define CONFIG_SCSI_LPFC_DEBUG_FS
31 #endif
32 
33 struct lpfc_sli2_slim;
34 
35 #define ELX_MODEL_NAME_SIZE	80
36 #define ELX_FW_NAME_SIZE	84
37 
38 #define LPFC_PCI_DEV_LP		0x1
39 #define LPFC_PCI_DEV_OC		0x2
40 
41 #define LPFC_SLI_REV2		2
42 #define LPFC_SLI_REV3		3
43 #define LPFC_SLI_REV4		4
44 
45 #define LPFC_MAX_TARGET		4096	/* max number of targets supported */
46 #define LPFC_MAX_DISC_THREADS	64	/* max outstanding discovery els
47 					   requests */
48 #define LPFC_MAX_NS_RETRY	3	/* Number of retry attempts to contact
49 					   the NameServer  before giving up. */
50 #define LPFC_CMD_PER_LUN	3	/* max outstanding cmds per lun */
51 #define LPFC_DEFAULT_SG_SEG_CNT 64	/* sg element count per scsi cmnd */
52 
53 #define LPFC_DEFAULT_XPSGL_SIZE	256
54 #define LPFC_MAX_SG_TABLESIZE	0xffff
55 #define LPFC_MIN_SG_SLI4_BUF_SZ	0x800	/* based on LPFC_DEFAULT_SG_SEG_CNT */
56 #define LPFC_MAX_BG_SLI4_SEG_CNT_DIF 128 /* sg element count for BlockGuard */
57 #define LPFC_MAX_SG_SEG_CNT_DIF 512	/* sg element count per scsi cmnd  */
58 #define LPFC_MAX_SG_SEG_CNT	4096	/* sg element count per scsi cmnd */
59 #define LPFC_MIN_SG_SEG_CNT	32	/* sg element count per scsi cmnd */
60 #define LPFC_MAX_SGL_SEG_CNT	512	/* SGL element count per scsi cmnd */
61 #define LPFC_MAX_BPL_SEG_CNT	4096	/* BPL element count per scsi cmnd */
62 #define LPFC_MAX_NVME_SEG_CNT	256	/* max SGL element cnt per NVME cmnd */
63 
64 #define LPFC_MAX_SGE_SIZE       0x80000000 /* Maximum data allowed in a SGE */
65 #define LPFC_IOCB_LIST_CNT	2250	/* list of IOCBs for fast-path usage. */
66 #define LPFC_Q_RAMP_UP_INTERVAL 120     /* lun q_depth ramp up interval */
67 #define LPFC_VNAME_LEN		100	/* vport symbolic name length */
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 /*
73  * Following time intervals are used of adjusting SCSI device
74  * queue depths when there are driver resource error or Firmware
75  * resource error.
76  */
77 /* 1 Second */
78 #define QUEUE_RAMP_DOWN_INTERVAL	(msecs_to_jiffies(1000 * 1))
79 
80 /* Number of exchanges reserved for discovery to complete */
81 #define LPFC_DISC_IOCB_BUFF_COUNT 20
82 
83 #define LPFC_HB_MBOX_INTERVAL   5	/* Heart beat interval in seconds. */
84 #define LPFC_HB_MBOX_TIMEOUT    30	/* Heart beat timeout  in seconds. */
85 
86 /* Error Attention event polling interval */
87 #define LPFC_ERATT_POLL_INTERVAL	5 /* EATT poll interval in seconds */
88 
89 /* Define macros for 64 bit support */
90 #define putPaddrLow(addr)    ((uint32_t) (0xffffffff & (u64)(addr)))
91 #define putPaddrHigh(addr)   ((uint32_t) (0xffffffff & (((u64)(addr))>>32)))
92 #define getPaddr(high, low)  ((dma_addr_t)( \
93 			     (( (u64)(high)<<16 ) << 16)|( (u64)(low))))
94 /* Provide maximum configuration definitions. */
95 #define LPFC_DRVR_TIMEOUT	16	/* driver iocb timeout value in sec */
96 #define FC_MAX_ADPTMSG		64
97 
98 #define MAX_HBAEVT	32
99 #define MAX_HBAS_NO_RESET 16
100 
101 /* Number of MSI-X vectors the driver uses */
102 #define LPFC_MSIX_VECTORS	2
103 
104 /* lpfc wait event data ready flag */
105 #define LPFC_DATA_READY		0	/* bit 0 */
106 
107 /* queue dump line buffer size */
108 #define LPFC_LBUF_SZ		128
109 
110 /* mailbox system shutdown options */
111 #define LPFC_MBX_NO_WAIT	0
112 #define LPFC_MBX_WAIT		1
113 
114 #define LPFC_CFG_PARAM_MAGIC_NUM 0xFEAA0005
115 #define LPFC_PORT_CFG_NAME "/cfg/port.cfg"
116 
117 #define lpfc_rangecheck(val, min, max) \
118 	((uint)(val) >= (uint)(min) && (val) <= (max))
119 
120 enum lpfc_polling_flags {
121 	ENABLE_FCP_RING_POLLING = 0x1,
122 	DISABLE_FCP_RING_INT    = 0x2
123 };
124 
125 struct perf_prof {
126 	uint16_t cmd_cpu[40];
127 	uint16_t rsp_cpu[40];
128 	uint16_t qh_cpu[40];
129 	uint16_t wqidx[40];
130 };
131 
132 /*
133  * Provide for FC4 TYPE x28 - NVME.  The
134  * bit mask for FCP and NVME is 0x8 identically
135  * because they are 32 bit positions distance.
136  */
137 #define LPFC_FC4_TYPE_BITMASK	0x00000100
138 
139 /* Provide DMA memory definitions the driver uses per port instance. */
140 struct lpfc_dmabuf {
141 	struct list_head list;
142 	void *virt;		/* virtual address ptr */
143 	dma_addr_t phys;	/* mapped address */
144 	uint32_t   buffer_tag;	/* used for tagged queue ring */
145 };
146 
147 struct lpfc_nvmet_ctxbuf {
148 	struct list_head list;
149 	struct lpfc_async_xchg_ctx *context;
150 	struct lpfc_iocbq *iocbq;
151 	struct lpfc_sglq *sglq;
152 	struct work_struct defer_work;
153 };
154 
155 struct lpfc_dma_pool {
156 	struct lpfc_dmabuf   *elements;
157 	uint32_t    max_count;
158 	uint32_t    current_count;
159 };
160 
161 struct hbq_dmabuf {
162 	struct lpfc_dmabuf hbuf;
163 	struct lpfc_dmabuf dbuf;
164 	uint16_t total_size;
165 	uint16_t bytes_recv;
166 	uint32_t tag;
167 	struct lpfc_cq_event cq_event;
168 	unsigned long time_stamp;
169 	void *context;
170 };
171 
172 struct rqb_dmabuf {
173 	struct lpfc_dmabuf hbuf;
174 	struct lpfc_dmabuf dbuf;
175 	uint16_t total_size;
176 	uint16_t bytes_recv;
177 	uint16_t idx;
178 	struct lpfc_queue *hrq;	  /* ptr to associated Header RQ */
179 	struct lpfc_queue *drq;	  /* ptr to associated Data RQ */
180 };
181 
182 /* Priority bit.  Set value to exceed low water mark in lpfc_mem. */
183 #define MEM_PRI		0x100
184 
185 
186 /****************************************************************************/
187 /*      Device VPD save area                                                */
188 /****************************************************************************/
189 typedef struct lpfc_vpd {
190 	uint32_t status;	/* vpd status value */
191 	uint32_t length;	/* number of bytes actually returned */
192 	struct {
193 		uint32_t rsvd1;	/* Revision numbers */
194 		uint32_t biuRev;
195 		uint32_t smRev;
196 		uint32_t smFwRev;
197 		uint32_t endecRev;
198 		uint16_t rBit;
199 		uint8_t fcphHigh;
200 		uint8_t fcphLow;
201 		uint8_t feaLevelHigh;
202 		uint8_t feaLevelLow;
203 		uint32_t postKernRev;
204 		uint32_t opFwRev;
205 		uint8_t opFwName[16];
206 		uint32_t sli1FwRev;
207 		uint8_t sli1FwName[16];
208 		uint32_t sli2FwRev;
209 		uint8_t sli2FwName[16];
210 	} rev;
211 	struct {
212 #ifdef __BIG_ENDIAN_BITFIELD
213 		uint32_t rsvd3  :20;  /* Reserved                             */
214 		uint32_t rsvd2	: 3;  /* Reserved                             */
215 		uint32_t cbg	: 1;  /* Configure BlockGuard                 */
216 		uint32_t cmv	: 1;  /* Configure Max VPIs                   */
217 		uint32_t ccrp   : 1;  /* Config Command Ring Polling          */
218 		uint32_t csah   : 1;  /* Configure Synchronous Abort Handling */
219 		uint32_t chbs   : 1;  /* Cofigure Host Backing store          */
220 		uint32_t cinb   : 1;  /* Enable Interrupt Notification Block  */
221 		uint32_t cerbm	: 1;  /* Configure Enhanced Receive Buf Mgmt  */
222 		uint32_t cmx	: 1;  /* Configure Max XRIs                   */
223 		uint32_t cmr	: 1;  /* Configure Max RPIs                   */
224 #else	/*  __LITTLE_ENDIAN */
225 		uint32_t cmr	: 1;  /* Configure Max RPIs                   */
226 		uint32_t cmx	: 1;  /* Configure Max XRIs                   */
227 		uint32_t cerbm	: 1;  /* Configure Enhanced Receive Buf Mgmt  */
228 		uint32_t cinb   : 1;  /* Enable Interrupt Notification Block  */
229 		uint32_t chbs   : 1;  /* Cofigure Host Backing store          */
230 		uint32_t csah   : 1;  /* Configure Synchronous Abort Handling */
231 		uint32_t ccrp   : 1;  /* Config Command Ring Polling          */
232 		uint32_t cmv	: 1;  /* Configure Max VPIs                   */
233 		uint32_t cbg	: 1;  /* Configure BlockGuard                 */
234 		uint32_t rsvd2	: 3;  /* Reserved                             */
235 		uint32_t rsvd3  :20;  /* Reserved                             */
236 #endif
237 	} sli3Feat;
238 } lpfc_vpd_t;
239 
240 
241 /*
242  * lpfc stat counters
243  */
244 struct lpfc_stats {
245 	/* Statistics for ELS commands */
246 	uint32_t elsLogiCol;
247 	uint32_t elsRetryExceeded;
248 	uint32_t elsXmitRetry;
249 	uint32_t elsDelayRetry;
250 	uint32_t elsRcvDrop;
251 	uint32_t elsRcvFrame;
252 	uint32_t elsRcvRSCN;
253 	uint32_t elsRcvRNID;
254 	uint32_t elsRcvFARP;
255 	uint32_t elsRcvFARPR;
256 	uint32_t elsRcvFLOGI;
257 	uint32_t elsRcvPLOGI;
258 	uint32_t elsRcvADISC;
259 	uint32_t elsRcvPDISC;
260 	uint32_t elsRcvFAN;
261 	uint32_t elsRcvLOGO;
262 	uint32_t elsRcvPRLO;
263 	uint32_t elsRcvPRLI;
264 	uint32_t elsRcvLIRR;
265 	uint32_t elsRcvRLS;
266 	uint32_t elsRcvRPL;
267 	uint32_t elsRcvRRQ;
268 	uint32_t elsRcvRTV;
269 	uint32_t elsRcvECHO;
270 	uint32_t elsRcvLCB;
271 	uint32_t elsRcvRDP;
272 	uint32_t elsRcvRDF;
273 	uint32_t elsXmitFLOGI;
274 	uint32_t elsXmitFDISC;
275 	uint32_t elsXmitPLOGI;
276 	uint32_t elsXmitPRLI;
277 	uint32_t elsXmitADISC;
278 	uint32_t elsXmitLOGO;
279 	uint32_t elsXmitSCR;
280 	uint32_t elsXmitRSCN;
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 #define LPFC_VMID_TIMER   300	/* timer interval in seconds */
311 
312 #define LPFC_MAX_VMID_SIZE      256
313 
314 union lpfc_vmid_io_tag {
315 	u32 app_id;	/* App Id vmid */
316 	u8 cs_ctl_vmid;	/* Priority tag vmid */
317 };
318 
319 #define JIFFIES_PER_HR	(HZ * 60 * 60)
320 
321 struct lpfc_vmid {
322 	u8 flag;
323 #define LPFC_VMID_SLOT_FREE     0x0
324 #define LPFC_VMID_SLOT_USED     0x1
325 #define LPFC_VMID_REQ_REGISTER  0x2
326 #define LPFC_VMID_REGISTERED    0x4
327 #define LPFC_VMID_DE_REGISTER   0x8
328 	char host_vmid[LPFC_MAX_VMID_SIZE];
329 	union lpfc_vmid_io_tag un;
330 	struct hlist_node hnode;
331 	u64 io_rd_cnt;
332 	u64 io_wr_cnt;
333 	u8 vmid_len;
334 	u8 delete_inactive; /* Delete if inactive flag 0 = no, 1 = yes */
335 	u32 hash_index;
336 	u64 __percpu *last_io_time;
337 };
338 
339 #define lpfc_vmid_is_type_priority_tag(vport)\
340 	(vport->vmid_priority_tagging ? 1 : 0)
341 
342 #define LPFC_VMID_HASH_SIZE     256
343 #define LPFC_VMID_HASH_MASK     255
344 #define LPFC_VMID_HASH_SHIFT    6
345 
346 struct lpfc_vmid_context {
347 	struct lpfc_vmid *vmp;
348 	struct lpfc_nodelist *nlp;
349 	bool instantiated;
350 };
351 
352 struct lpfc_vmid_priority_range {
353 	u8 low;
354 	u8 high;
355 	u8 qos;
356 };
357 
358 struct lpfc_vmid_priority_info {
359 	u32 num_descriptors;
360 	struct lpfc_vmid_priority_range *vmid_range;
361 };
362 
363 #define QFPA_EVEN_ONLY 0x01
364 #define QFPA_ODD_ONLY  0x02
365 #define QFPA_EVEN_ODD  0x03
366 
367 enum discovery_state {
368 	LPFC_VPORT_UNKNOWN     =  0,    /* vport state is unknown */
369 	LPFC_VPORT_FAILED      =  1,    /* vport has failed */
370 	LPFC_LOCAL_CFG_LINK    =  6,    /* local NPORT Id configured */
371 	LPFC_FLOGI             =  7,    /* FLOGI sent to Fabric */
372 	LPFC_FDISC             =  8,    /* FDISC sent for vport */
373 	LPFC_FABRIC_CFG_LINK   =  9,    /* Fabric assigned NPORT Id
374 				         * configured */
375 	LPFC_NS_REG            =  10,   /* Register with NameServer */
376 	LPFC_NS_QRY            =  11,   /* Query NameServer for NPort ID list */
377 	LPFC_BUILD_DISC_LIST   =  12,   /* Build ADISC and PLOGI lists for
378 				         * device authentication / discovery */
379 	LPFC_DISC_AUTH         =  13,   /* Processing ADISC list */
380 	LPFC_VPORT_READY       =  32,
381 };
382 
383 enum hba_state {
384 	LPFC_LINK_UNKNOWN    =   0,   /* HBA state is unknown */
385 	LPFC_WARM_START      =   1,   /* HBA state after selective reset */
386 	LPFC_INIT_START      =   2,   /* Initial state after board reset */
387 	LPFC_INIT_MBX_CMDS   =   3,   /* Initialize HBA with mbox commands */
388 	LPFC_LINK_DOWN       =   4,   /* HBA initialized, link is down */
389 	LPFC_LINK_UP         =   5,   /* Link is up  - issue READ_LA */
390 	LPFC_CLEAR_LA        =   6,   /* authentication cmplt - issue
391 				       * CLEAR_LA */
392 	LPFC_HBA_READY       =  32,
393 	LPFC_HBA_ERROR       =  -1
394 };
395 
396 struct lpfc_trunk_link_state {
397 	enum hba_state state;
398 	uint8_t fault;
399 };
400 
401 struct lpfc_trunk_link  {
402 	struct lpfc_trunk_link_state link0,
403 				     link1,
404 				     link2,
405 				     link3;
406 	u32 phy_lnk_speed;
407 };
408 
409 /* Format of congestion module parameters */
410 struct lpfc_cgn_param {
411 	uint32_t cgn_param_magic;
412 	uint8_t  cgn_param_version;	/* version 1 */
413 	uint8_t  cgn_param_mode;	/* 0=off 1=managed 2=monitor only */
414 #define LPFC_CFG_OFF		0
415 #define LPFC_CFG_MANAGED	1
416 #define LPFC_CFG_MONITOR	2
417 	uint8_t  cgn_rsvd1;
418 	uint8_t  cgn_rsvd2;
419 	uint8_t  cgn_param_level0;
420 	uint8_t  cgn_param_level1;
421 	uint8_t  cgn_param_level2;
422 	uint8_t  byte11;
423 	uint8_t  byte12;
424 	uint8_t  byte13;
425 	uint8_t  byte14;
426 	uint8_t  byte15;
427 };
428 
429 /* Max number of days of congestion data */
430 #define LPFC_MAX_CGN_DAYS 10
431 
432 struct lpfc_cgn_ts {
433 	uint8_t month;
434 	uint8_t day;
435 	uint8_t year;
436 	uint8_t hour;
437 	uint8_t minute;
438 	uint8_t second;
439 };
440 
441 /* Format of congestion buffer info
442  * This structure defines memory thats allocated and registered with
443  * the HBA firmware. When adding or removing fields from this structure
444  * the alignment must match the HBA firmware.
445  */
446 
447 struct lpfc_cgn_info {
448 	/* Header */
449 	__le16   cgn_info_size;		/* is sizeof(struct lpfc_cgn_info) */
450 	uint8_t  cgn_info_version;	/* represents format of structure */
451 #define LPFC_CGN_INFO_V1	1
452 #define LPFC_CGN_INFO_V2	2
453 #define LPFC_CGN_INFO_V3	3
454 #define LPFC_CGN_INFO_V4	4
455 	uint8_t  cgn_info_mode;		/* 0=off 1=managed 2=monitor only */
456 	uint8_t  cgn_info_detect;
457 	uint8_t  cgn_info_action;
458 	uint8_t  cgn_info_level0;
459 	uint8_t  cgn_info_level1;
460 	uint8_t  cgn_info_level2;
461 
462 	/* Start Time */
463 	struct lpfc_cgn_ts base_time;
464 
465 	/* minute / hours / daily indices */
466 	uint8_t  cgn_index_minute;
467 	uint8_t  cgn_index_hour;
468 	uint8_t  cgn_index_day;
469 
470 	__le16   cgn_warn_freq;
471 	__le16   cgn_alarm_freq;
472 	__le16   cgn_lunq;
473 	uint8_t  cgn_pad1[8];
474 
475 	/* Driver Information */
476 	__le16   cgn_drvr_min[60];
477 	__le32   cgn_drvr_hr[24];
478 	__le32   cgn_drvr_day[LPFC_MAX_CGN_DAYS];
479 
480 	/* Congestion Warnings */
481 	__le16   cgn_warn_min[60];
482 	__le32   cgn_warn_hr[24];
483 	__le32   cgn_warn_day[LPFC_MAX_CGN_DAYS];
484 
485 	/* Latency Information */
486 	__le32   cgn_latency_min[60];
487 	__le32   cgn_latency_hr[24];
488 	__le32   cgn_latency_day[LPFC_MAX_CGN_DAYS];
489 
490 	/* Bandwidth Information */
491 	__le16   cgn_bw_min[60];
492 	__le16   cgn_bw_hr[24];
493 	__le16   cgn_bw_day[LPFC_MAX_CGN_DAYS];
494 
495 	/* Congestion Alarms */
496 	__le16   cgn_alarm_min[60];
497 	__le32   cgn_alarm_hr[24];
498 	__le32   cgn_alarm_day[LPFC_MAX_CGN_DAYS];
499 
500 	struct_group(cgn_stat,
501 		uint8_t  cgn_stat_npm;		/* Notifications per minute */
502 
503 		/* Start Time */
504 		struct lpfc_cgn_ts stat_start;	/* Base time */
505 		uint8_t cgn_pad2;
506 
507 		__le32   cgn_notification;
508 		__le32   cgn_peer_notification;
509 		__le32   link_integ_notification;
510 		__le32   delivery_notification;
511 		struct lpfc_cgn_ts stat_fpin;	/* Last congestion notification FPIN */
512 		struct lpfc_cgn_ts stat_peer;	/* Last peer congestion FPIN */
513 		struct lpfc_cgn_ts stat_lnk;	/* Last link integrity FPIN */
514 		struct lpfc_cgn_ts stat_delivery;	/* Last delivery notification FPIN */
515 	);
516 
517 	__le32   cgn_info_crc;
518 #define LPFC_CGN_CRC32_MAGIC_NUMBER	0x1EDC6F41
519 #define LPFC_CGN_CRC32_SEED		0xFFFFFFFF
520 };
521 
522 #define LPFC_CGN_INFO_SZ	(sizeof(struct lpfc_cgn_info) -  \
523 				sizeof(uint32_t))
524 
525 struct lpfc_cgn_stat {
526 	atomic64_t total_bytes;
527 	atomic64_t rcv_bytes;
528 	atomic64_t rx_latency;
529 #define LPFC_CGN_NOT_SENT	0xFFFFFFFFFFFFFFFFLL
530 	atomic_t rx_io_cnt;
531 };
532 
533 struct lpfc_cgn_acqe_stat {
534 	atomic64_t alarm;
535 	atomic64_t warn;
536 };
537 
538 struct lpfc_vport {
539 	struct lpfc_hba *phba;
540 	struct list_head listentry;
541 	uint8_t port_type;
542 #define LPFC_PHYSICAL_PORT 1
543 #define LPFC_NPIV_PORT  2
544 #define LPFC_FABRIC_PORT 3
545 	enum discovery_state port_state;
546 
547 	uint16_t vpi;
548 	uint16_t vfi;
549 	uint8_t vpi_state;
550 #define LPFC_VPI_REGISTERED	0x1
551 
552 	uint32_t fc_flag;	/* FC flags */
553 /* Several of these flags are HBA centric and should be moved to
554  * phba->link_flag (e.g. FC_PTP, FC_PUBLIC_LOOP)
555  */
556 #define FC_PT2PT                0x1	 /* pt2pt with no fabric */
557 #define FC_PT2PT_PLOGI          0x2	 /* pt2pt initiate PLOGI */
558 #define FC_DISC_TMO             0x4	 /* Discovery timer running */
559 #define FC_PUBLIC_LOOP          0x8	 /* Public loop */
560 #define FC_LBIT                 0x10	 /* LOGIN bit in loopinit set */
561 #define FC_RSCN_MODE            0x20	 /* RSCN cmd rcv'ed */
562 #define FC_NLP_MORE             0x40	 /* More node to process in node tbl */
563 #define FC_OFFLINE_MODE         0x80	 /* Interface is offline for diag */
564 #define FC_FABRIC               0x100	 /* We are fabric attached */
565 #define FC_VPORT_LOGO_RCVD      0x200    /* LOGO received on vport */
566 #define FC_RSCN_DISCOVERY       0x400	 /* Auth all devices after RSCN */
567 #define FC_LOGO_RCVD_DID_CHNG   0x800    /* FDISC on phys port detect DID chng*/
568 #define FC_PT2PT_NO_NVME        0x1000   /* Don't send NVME PRLI */
569 #define FC_SCSI_SCAN_TMO        0x4000	 /* scsi scan timer running */
570 #define FC_ABORT_DISCOVERY      0x8000	 /* we want to abort discovery */
571 #define FC_NDISC_ACTIVE         0x10000	 /* NPort discovery active */
572 #define FC_BYPASSED_MODE        0x20000	 /* NPort is in bypassed mode */
573 #define FC_VPORT_NEEDS_REG_VPI	0x80000  /* Needs to have its vpi registered */
574 #define FC_RSCN_DEFERRED	0x100000 /* A deferred RSCN being processed */
575 #define FC_VPORT_NEEDS_INIT_VPI 0x200000 /* Need to INIT_VPI before FDISC */
576 #define FC_VPORT_CVL_RCVD	0x400000 /* VLink failed due to CVL	 */
577 #define FC_VFI_REGISTERED	0x800000 /* VFI is registered */
578 #define FC_FDISC_COMPLETED	0x1000000/* FDISC completed */
579 #define FC_DISC_DELAYED		0x2000000/* Delay NPort discovery */
580 
581 	uint32_t ct_flags;
582 #define FC_CT_RFF_ID		0x1	 /* RFF_ID accepted by switch */
583 #define FC_CT_RNN_ID		0x2	 /* RNN_ID accepted by switch */
584 #define FC_CT_RSNN_NN		0x4	 /* RSNN_NN accepted by switch */
585 #define FC_CT_RSPN_ID		0x8	 /* RSPN_ID accepted by switch */
586 #define FC_CT_RFT_ID		0x10	 /* RFT_ID accepted by switch */
587 #define FC_CT_RPRT_DEFER	0x20	 /* Defer issuing FDMI RPRT */
588 
589 	struct list_head fc_nodes;
590 
591 	/* Keep counters for the number of entries in each list. */
592 	uint16_t fc_plogi_cnt;
593 	uint16_t fc_adisc_cnt;
594 	uint16_t fc_reglogin_cnt;
595 	uint16_t fc_prli_cnt;
596 	uint16_t fc_unmap_cnt;
597 	uint16_t fc_map_cnt;
598 	uint16_t fc_npr_cnt;
599 	uint16_t fc_unused_cnt;
600 	struct serv_parm fc_sparam;	/* buffer for our service parameters */
601 
602 	uint32_t fc_myDID;	/* fibre channel S_ID */
603 	uint32_t fc_prevDID;	/* previous fibre channel S_ID */
604 	struct lpfc_name fabric_portname;
605 	struct lpfc_name fabric_nodename;
606 
607 	int32_t stopped;   /* HBA has not been restarted since last ERATT */
608 	uint8_t fc_linkspeed;	/* Link speed after last READ_LA */
609 
610 	uint32_t num_disc_nodes;	/* in addition to hba_state */
611 	uint32_t gidft_inp;		/* cnt of outstanding GID_FTs */
612 
613 	uint32_t fc_nlp_cnt;	/* outstanding NODELIST requests */
614 	uint32_t fc_rscn_id_cnt;	/* count of RSCNs payloads in list */
615 	uint32_t fc_rscn_flush;		/* flag use of fc_rscn_id_list */
616 	struct lpfc_dmabuf *fc_rscn_id_list[FC_MAX_HOLD_RSCN];
617 	struct lpfc_name fc_nodename;	/* fc nodename */
618 	struct lpfc_name fc_portname;	/* fc portname */
619 
620 	struct lpfc_work_evt disc_timeout_evt;
621 
622 	struct timer_list fc_disctmo;	/* Discovery rescue timer */
623 	uint8_t fc_ns_retry;	/* retries for fabric nameserver */
624 	uint32_t fc_prli_sent;	/* cntr for outstanding PRLIs */
625 
626 	spinlock_t work_port_lock;
627 	uint32_t work_port_events; /* Timeout to be handled  */
628 #define WORKER_DISC_TMO                0x1	/* vport: Discovery timeout */
629 #define WORKER_ELS_TMO                 0x2	/* vport: ELS timeout */
630 #define WORKER_DELAYED_DISC_TMO        0x8	/* vport: delayed discovery */
631 
632 #define WORKER_MBOX_TMO                0x100	/* hba: MBOX timeout */
633 #define WORKER_HB_TMO                  0x200	/* hba: Heart beat timeout */
634 #define WORKER_FABRIC_BLOCK_TMO        0x400	/* hba: fabric block timeout */
635 #define WORKER_RAMP_DOWN_QUEUE         0x800	/* hba: Decrease Q depth */
636 #define WORKER_RAMP_UP_QUEUE           0x1000	/* hba: Increase Q depth */
637 #define WORKER_SERVICE_TXQ             0x2000	/* hba: IOCBs on the txq */
638 #define WORKER_CHECK_INACTIVE_VMID     0x4000	/* hba: check inactive vmids */
639 #define WORKER_CHECK_VMID_ISSUE_QFPA   0x8000	/* vport: Check if qfpa needs
640 						 * to be issued */
641 
642 	struct timer_list els_tmofunc;
643 	struct timer_list delayed_disc_tmo;
644 
645 	uint8_t load_flag;
646 #define FC_LOADING		0x1	/* HBA in process of loading drvr */
647 #define FC_UNLOADING		0x2	/* HBA in process of unloading drvr */
648 #define FC_ALLOW_FDMI		0x4	/* port is ready for FDMI requests */
649 #define FC_ALLOW_VMID		0x8	/* Allow VMID I/Os */
650 #define FC_DEREGISTER_ALL_APP_ID	0x10	/* Deregister all VMIDs */
651 	/* Vport Config Parameters */
652 	uint32_t cfg_scan_down;
653 	uint32_t cfg_lun_queue_depth;
654 	uint32_t cfg_nodev_tmo;
655 	uint32_t cfg_devloss_tmo;
656 	uint32_t cfg_restrict_login;
657 	uint32_t cfg_peer_port_login;
658 	uint32_t cfg_fcp_class;
659 	uint32_t cfg_use_adisc;
660 	uint32_t cfg_discovery_threads;
661 	uint32_t cfg_log_verbose;
662 	uint32_t cfg_enable_fc4_type;
663 	uint32_t cfg_max_luns;
664 	uint32_t cfg_enable_da_id;
665 	uint32_t cfg_max_scsicmpl_time;
666 	uint32_t cfg_tgt_queue_depth;
667 	uint32_t cfg_first_burst_size;
668 	uint32_t dev_loss_tmo_changed;
669 	/* VMID parameters */
670 	u8 lpfc_vmid_host_uuid[16];
671 	u32 max_vmid;	/* maximum VMIDs allowed per port */
672 	u32 cur_vmid_cnt;	/* Current VMID count */
673 #define LPFC_MIN_VMID	4
674 #define LPFC_MAX_VMID	255
675 	u32 vmid_inactivity_timeout;	/* Time after which the VMID */
676 						/* deregisters from switch */
677 	u32 vmid_priority_tagging;
678 #define LPFC_VMID_PRIO_TAG_DISABLE	0 /* Disable */
679 #define LPFC_VMID_PRIO_TAG_SUP_TARGETS	1 /* Allow supported targets only */
680 #define LPFC_VMID_PRIO_TAG_ALL_TARGETS	2 /* Allow all targets */
681 	unsigned long *vmid_priority_range;
682 #define LPFC_VMID_MAX_PRIORITY_RANGE    256
683 #define LPFC_VMID_PRIORITY_BITMAP_SIZE  32
684 	u8 vmid_flag;
685 #define LPFC_VMID_IN_USE		0x1
686 #define LPFC_VMID_ISSUE_QFPA		0x2
687 #define LPFC_VMID_QFPA_CMPL		0x4
688 #define LPFC_VMID_QOS_ENABLED		0x8
689 #define LPFC_VMID_TIMER_ENBLD		0x10
690 #define LPFC_VMID_TYPE_PRIO		0x20
691 	struct fc_qfpa_res *qfpa_res;
692 
693 	struct fc_vport *fc_vport;
694 
695 	struct lpfc_vmid *vmid;
696 	DECLARE_HASHTABLE(hash_table, 8);
697 	rwlock_t vmid_lock;
698 	struct lpfc_vmid_priority_info vmid_priority;
699 
700 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
701 	struct dentry *debug_disc_trc;
702 	struct dentry *debug_nodelist;
703 	struct dentry *debug_nvmestat;
704 	struct dentry *debug_scsistat;
705 	struct dentry *debug_ioktime;
706 	struct dentry *debug_hdwqstat;
707 	struct dentry *vport_debugfs_root;
708 	struct lpfc_debugfs_trc *disc_trc;
709 	atomic_t disc_trc_cnt;
710 #endif
711 	struct list_head rcv_buffer_list;
712 	unsigned long rcv_buffer_time_stamp;
713 	uint32_t vport_flag;
714 #define STATIC_VPORT		0x1
715 #define FAWWPN_PARAM_CHG	0x2
716 
717 	uint16_t fdmi_num_disc;
718 	uint32_t fdmi_hba_mask;
719 	uint32_t fdmi_port_mask;
720 
721 	/* There is a single nvme instance per vport. */
722 	struct nvme_fc_local_port *localport;
723 	uint8_t  nvmei_support; /* driver supports NVME Initiator */
724 	uint32_t last_fcp_wqidx;
725 	uint32_t rcv_flogi_cnt; /* How many unsol FLOGIs ACK'd. */
726 };
727 
728 struct hbq_s {
729 	uint16_t entry_count;	  /* Current number of HBQ slots */
730 	uint16_t buffer_count;	  /* Current number of buffers posted */
731 	uint32_t next_hbqPutIdx;  /* Index to next HBQ slot to use */
732 	uint32_t hbqPutIdx;	  /* HBQ slot to use */
733 	uint32_t local_hbqGetIdx; /* Local copy of Get index from Port */
734 	void    *hbq_virt;	  /* Virtual ptr to this hbq */
735 	struct list_head hbq_buffer_list;  /* buffers assigned to this HBQ */
736 				  /* Callback for HBQ buffer allocation */
737 	struct hbq_dmabuf *(*hbq_alloc_buffer) (struct lpfc_hba *);
738 				  /* Callback for HBQ buffer free */
739 	void               (*hbq_free_buffer) (struct lpfc_hba *,
740 					       struct hbq_dmabuf *);
741 };
742 
743 /* this matches the position in the lpfc_hbq_defs array */
744 #define LPFC_ELS_HBQ	0
745 #define LPFC_MAX_HBQS	1
746 
747 enum hba_temp_state {
748 	HBA_NORMAL_TEMP,
749 	HBA_OVER_TEMP
750 };
751 
752 enum intr_type_t {
753 	NONE = 0,
754 	INTx,
755 	MSI,
756 	MSIX,
757 };
758 
759 #define LPFC_CT_CTX_MAX		64
760 struct unsol_rcv_ct_ctx {
761 	uint32_t ctxt_id;
762 	uint32_t SID;
763 	uint32_t valid;
764 #define UNSOL_INVALID		0
765 #define UNSOL_VALID		1
766 	uint16_t oxid;
767 	uint16_t rxid;
768 };
769 
770 #define LPFC_USER_LINK_SPEED_AUTO	0	/* auto select (default)*/
771 #define LPFC_USER_LINK_SPEED_1G		1	/* 1 Gigabaud */
772 #define LPFC_USER_LINK_SPEED_2G		2	/* 2 Gigabaud */
773 #define LPFC_USER_LINK_SPEED_4G		4	/* 4 Gigabaud */
774 #define LPFC_USER_LINK_SPEED_8G		8	/* 8 Gigabaud */
775 #define LPFC_USER_LINK_SPEED_10G	10	/* 10 Gigabaud */
776 #define LPFC_USER_LINK_SPEED_16G	16	/* 16 Gigabaud */
777 #define LPFC_USER_LINK_SPEED_32G	32	/* 32 Gigabaud */
778 #define LPFC_USER_LINK_SPEED_64G	64	/* 64 Gigabaud */
779 #define LPFC_USER_LINK_SPEED_MAX	LPFC_USER_LINK_SPEED_64G
780 
781 #define LPFC_LINK_SPEED_STRING "0, 1, 2, 4, 8, 10, 16, 32, 64"
782 
783 enum nemb_type {
784 	nemb_mse = 1,
785 	nemb_hbd
786 };
787 
788 enum mbox_type {
789 	mbox_rd = 1,
790 	mbox_wr
791 };
792 
793 enum dma_type {
794 	dma_mbox = 1,
795 	dma_ebuf
796 };
797 
798 enum sta_type {
799 	sta_pre_addr = 1,
800 	sta_pos_addr
801 };
802 
803 struct lpfc_mbox_ext_buf_ctx {
804 	uint32_t state;
805 #define LPFC_BSG_MBOX_IDLE		0
806 #define LPFC_BSG_MBOX_HOST              1
807 #define LPFC_BSG_MBOX_PORT		2
808 #define LPFC_BSG_MBOX_DONE		3
809 #define LPFC_BSG_MBOX_ABTS		4
810 	enum nemb_type nembType;
811 	enum mbox_type mboxType;
812 	uint32_t numBuf;
813 	uint32_t mbxTag;
814 	uint32_t seqNum;
815 	struct lpfc_dmabuf *mbx_dmabuf;
816 	struct list_head ext_dmabuf_list;
817 };
818 
819 struct lpfc_epd_pool {
820 	/* Expedite pool */
821 	struct list_head list;
822 	u32 count;
823 	spinlock_t lock;	/* lock for expedite pool */
824 };
825 
826 enum ras_state {
827 	INACTIVE,
828 	REG_INPROGRESS,
829 	ACTIVE
830 };
831 
832 struct lpfc_ras_fwlog {
833 	uint8_t *fwlog_buff;
834 	uint32_t fw_buffcount; /* Buffer size posted to FW */
835 #define LPFC_RAS_BUFF_ENTERIES  16      /* Each entry can hold max of 64k */
836 #define LPFC_RAS_MAX_ENTRY_SIZE (64 * 1024)
837 #define LPFC_RAS_MIN_BUFF_POST_SIZE (256 * 1024)
838 #define LPFC_RAS_MAX_BUFF_POST_SIZE (1024 * 1024)
839 	uint32_t fw_loglevel; /* Log level set */
840 	struct lpfc_dmabuf lwpd;
841 	struct list_head fwlog_buff_list;
842 
843 	/* RAS support status on adapter */
844 	bool ras_hwsupport; /* RAS Support available on HW or not */
845 	bool ras_enabled;   /* Ras Enabled for the function */
846 #define LPFC_RAS_DISABLE_LOGGING 0x00
847 #define LPFC_RAS_ENABLE_LOGGING 0x01
848 	enum ras_state state;    /* RAS logging running state */
849 };
850 
851 #define DBG_LOG_STR_SZ 256
852 #define DBG_LOG_SZ 256
853 
854 struct dbg_log_ent {
855 	char log[DBG_LOG_STR_SZ];
856 	u64     t_ns;
857 };
858 
859 enum lpfc_irq_chann_mode {
860 	/* Assign IRQs to all possible cpus that have hardware queues */
861 	NORMAL_MODE,
862 
863 	/* Assign IRQs only to cpus on the same numa node as HBA */
864 	NUMA_MODE,
865 
866 	/* Assign IRQs only on non-hyperthreaded CPUs. This is the
867 	 * same as normal_mode, but assign IRQS only on physical CPUs.
868 	 */
869 	NHT_MODE,
870 };
871 
872 enum lpfc_hba_bit_flags {
873 	FABRIC_COMANDS_BLOCKED,
874 	HBA_PCI_ERR,
875 	MBX_TMO_ERR,
876 };
877 
878 struct lpfc_hba {
879 	/* SCSI interface function jump table entries */
880 	struct lpfc_io_buf * (*lpfc_get_scsi_buf)
881 		(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
882 		struct scsi_cmnd *cmnd);
883 	int (*lpfc_scsi_prep_dma_buf)
884 		(struct lpfc_hba *, struct lpfc_io_buf *);
885 	void (*lpfc_scsi_unprep_dma_buf)
886 		(struct lpfc_hba *, struct lpfc_io_buf *);
887 	void (*lpfc_release_scsi_buf)
888 		(struct lpfc_hba *, struct lpfc_io_buf *);
889 	void (*lpfc_rampdown_queue_depth)
890 		(struct lpfc_hba *);
891 	void (*lpfc_scsi_prep_cmnd)
892 		(struct lpfc_vport *, struct lpfc_io_buf *,
893 		 struct lpfc_nodelist *);
894 	int (*lpfc_scsi_prep_cmnd_buf)
895 		(struct lpfc_vport *vport,
896 		 struct lpfc_io_buf *lpfc_cmd,
897 		 uint8_t tmo);
898 	int (*lpfc_scsi_prep_task_mgmt_cmd)
899 		(struct lpfc_vport *vport,
900 		 struct lpfc_io_buf *lpfc_cmd,
901 		 u64 lun, u8 task_mgmt_cmd);
902 
903 	/* IOCB interface function jump table entries */
904 	int (*__lpfc_sli_issue_iocb)
905 		(struct lpfc_hba *, uint32_t,
906 		 struct lpfc_iocbq *, uint32_t);
907 	int (*__lpfc_sli_issue_fcp_io)
908 		(struct lpfc_hba *phba, uint32_t ring_number,
909 		 struct lpfc_iocbq *piocb, uint32_t flag);
910 	void (*__lpfc_sli_release_iocbq)(struct lpfc_hba *,
911 			 struct lpfc_iocbq *);
912 	int (*lpfc_hba_down_post)(struct lpfc_hba *phba);
913 
914 	/* MBOX interface function jump table entries */
915 	int (*lpfc_sli_issue_mbox)
916 		(struct lpfc_hba *, LPFC_MBOXQ_t *, uint32_t);
917 
918 	/* Slow-path IOCB process function jump table entries */
919 	void (*lpfc_sli_handle_slow_ring_event)
920 		(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
921 		 uint32_t mask);
922 
923 	/* INIT device interface function jump table entries */
924 	int (*lpfc_sli_hbq_to_firmware)
925 		(struct lpfc_hba *, uint32_t, struct hbq_dmabuf *);
926 	int (*lpfc_sli_brdrestart)
927 		(struct lpfc_hba *);
928 	int (*lpfc_sli_brdready)
929 		(struct lpfc_hba *, uint32_t);
930 	void (*lpfc_handle_eratt)
931 		(struct lpfc_hba *);
932 	void (*lpfc_stop_port)
933 		(struct lpfc_hba *);
934 	int (*lpfc_hba_init_link)
935 		(struct lpfc_hba *, uint32_t);
936 	int (*lpfc_hba_down_link)
937 		(struct lpfc_hba *, uint32_t);
938 	int (*lpfc_selective_reset)
939 		(struct lpfc_hba *);
940 
941 	int (*lpfc_bg_scsi_prep_dma_buf)
942 		(struct lpfc_hba *, struct lpfc_io_buf *);
943 
944 	/* Prep SLI WQE/IOCB jump table entries */
945 	void (*__lpfc_sli_prep_els_req_rsp)(struct lpfc_iocbq *cmdiocbq,
946 					    struct lpfc_vport *vport,
947 					    struct lpfc_dmabuf *bmp,
948 					    u16 cmd_size, u32 did, u32 elscmd,
949 					    u8 tmo, u8 expect_rsp);
950 	void (*__lpfc_sli_prep_gen_req)(struct lpfc_iocbq *cmdiocbq,
951 					struct lpfc_dmabuf *bmp, u16 rpi,
952 					u32 num_entry, u8 tmo);
953 	void (*__lpfc_sli_prep_xmit_seq64)(struct lpfc_iocbq *cmdiocbq,
954 					   struct lpfc_dmabuf *bmp, u16 rpi,
955 					   u16 ox_id, u32 num_entry, u8 rctl,
956 					   u8 last_seq, u8 cr_cx_cmd);
957 	void (*__lpfc_sli_prep_abort_xri)(struct lpfc_iocbq *cmdiocbq,
958 					  u16 ulp_context, u16 iotag,
959 					  u8 ulp_class, u16 cqid, bool ia,
960 					  bool wqec);
961 
962 	/* expedite pool */
963 	struct lpfc_epd_pool epd_pool;
964 
965 	/* SLI4 specific HBA data structure */
966 	struct lpfc_sli4_hba sli4_hba;
967 
968 	struct workqueue_struct *wq;
969 	struct delayed_work     eq_delay_work;
970 
971 #define LPFC_IDLE_STAT_DELAY 1000
972 	struct delayed_work	idle_stat_delay_work;
973 
974 	struct lpfc_sli sli;
975 	uint8_t pci_dev_grp;	/* lpfc PCI dev group: 0x0, 0x1, 0x2,... */
976 	uint32_t sli_rev;		/* SLI2, SLI3, or SLI4 */
977 	uint32_t sli3_options;		/* Mask of enabled SLI3 options */
978 #define LPFC_SLI3_HBQ_ENABLED		0x01
979 #define LPFC_SLI3_NPIV_ENABLED		0x02
980 #define LPFC_SLI3_VPORT_TEARDOWN	0x04
981 #define LPFC_SLI3_CRP_ENABLED		0x08
982 #define LPFC_SLI3_BG_ENABLED		0x20
983 #define LPFC_SLI3_DSS_ENABLED		0x40
984 #define LPFC_SLI4_PERFH_ENABLED		0x80
985 #define LPFC_SLI4_PHWQ_ENABLED		0x100
986 	uint32_t iocb_cmd_size;
987 	uint32_t iocb_rsp_size;
988 
989 	struct lpfc_trunk_link  trunk_link;
990 	enum hba_state link_state;
991 	uint32_t link_flag;	/* link state flags */
992 #define LS_LOOPBACK_MODE      0x1	/* NPort is in Loopback mode */
993 					/* This flag is set while issuing */
994 					/* INIT_LINK mailbox command */
995 #define LS_NPIV_FAB_SUPPORTED 0x2	/* Fabric supports NPIV */
996 #define LS_IGNORE_ERATT       0x4	/* intr handler should ignore ERATT */
997 #define LS_MDS_LINK_DOWN      0x8	/* MDS Diagnostics Link Down */
998 #define LS_MDS_LOOPBACK       0x10	/* MDS Diagnostics Link Up (Loopback) */
999 #define LS_CT_VEN_RPA         0x20	/* Vendor RPA sent to switch */
1000 #define LS_EXTERNAL_LOOPBACK  0x40	/* External loopback plug inserted */
1001 
1002 	uint32_t hba_flag;	/* hba generic flags */
1003 #define HBA_ERATT_HANDLED	0x1 /* This flag is set when eratt handled */
1004 #define DEFER_ERATT		0x2 /* Deferred error attention in progress */
1005 #define HBA_FCOE_MODE		0x4 /* HBA function in FCoE Mode */
1006 #define HBA_SP_QUEUE_EVT	0x8 /* Slow-path qevt posted to worker thread*/
1007 #define HBA_POST_RECEIVE_BUFFER 0x10 /* Rcv buffers need to be posted */
1008 #define HBA_PERSISTENT_TOPO	0x20 /* Persistent topology support in hba */
1009 #define ELS_XRI_ABORT_EVENT	0x40 /* ELS_XRI abort event was queued */
1010 #define ASYNC_EVENT		0x80
1011 #define LINK_DISABLED		0x100 /* Link disabled by user */
1012 #define FCF_TS_INPROG           0x200 /* FCF table scan in progress */
1013 #define FCF_RR_INPROG           0x400 /* FCF roundrobin flogi in progress */
1014 #define HBA_FIP_SUPPORT		0x800 /* FIP support in HBA */
1015 #define HBA_DEVLOSS_TMO         0x2000 /* HBA in devloss timeout */
1016 #define HBA_RRQ_ACTIVE		0x4000 /* process the rrq active list */
1017 #define HBA_IOQ_FLUSH		0x8000 /* FCP/NVME I/O queues being flushed */
1018 #define HBA_RECOVERABLE_UE	0x20000 /* Firmware supports recoverable UE */
1019 #define HBA_FORCED_LINK_SPEED	0x40000 /*
1020 					 * Firmware supports Forced Link Speed
1021 					 * capability
1022 					 */
1023 #define HBA_FLOGI_ISSUED	0x100000 /* FLOGI was issued */
1024 #define HBA_DEFER_FLOGI		0x800000 /* Defer FLOGI till read_sparm cmpl */
1025 #define HBA_SETUP		0x1000000 /* Signifies HBA setup is completed */
1026 #define HBA_NEEDS_CFG_PORT	0x2000000 /* SLI3 - needs a CONFIG_PORT mbox */
1027 #define HBA_HBEAT_INP		0x4000000 /* mbox HBEAT is in progress */
1028 #define HBA_HBEAT_TMO		0x8000000 /* HBEAT initiated after timeout */
1029 #define HBA_FLOGI_OUTSTANDING	0x10000000 /* FLOGI is outstanding */
1030 #define HBA_RHBA_CMPL		0x20000000 /* RHBA FDMI command is successful */
1031 
1032 	struct completion *fw_dump_cmpl; /* cmpl event tracker for fw_dump */
1033 	uint32_t fcp_ring_in_use; /* When polling test if intr-hndlr active*/
1034 	struct lpfc_dmabuf slim2p;
1035 
1036 	MAILBOX_t *mbox;
1037 	uint32_t *mbox_ext;
1038 	struct lpfc_mbox_ext_buf_ctx mbox_ext_buf_ctx;
1039 	uint32_t ha_copy;
1040 	struct _PCB *pcb;
1041 	struct _IOCB *IOCBs;
1042 
1043 	struct lpfc_dmabuf hbqslimp;
1044 
1045 	uint16_t pci_cfg_value;
1046 
1047 	uint8_t fc_linkspeed;	/* Link speed after last READ_LA */
1048 
1049 	uint32_t fc_eventTag;	/* event tag for link attention */
1050 	uint32_t link_events;
1051 
1052 	/* These fields used to be binfo */
1053 	uint32_t fc_pref_DID;	/* preferred D_ID */
1054 	uint8_t  fc_pref_ALPA;	/* preferred AL_PA */
1055 	uint32_t fc_edtovResol; /* E_D_TOV timer resolution */
1056 	uint32_t fc_edtov;	/* E_D_TOV timer value */
1057 	uint32_t fc_arbtov;	/* ARB_TOV timer value */
1058 	uint32_t fc_ratov;	/* R_A_TOV timer value */
1059 	uint32_t fc_rttov;	/* R_T_TOV timer value */
1060 	uint32_t fc_altov;	/* AL_TOV timer value */
1061 	uint32_t fc_crtov;	/* C_R_TOV timer value */
1062 
1063 	struct serv_parm fc_fabparam;	/* fabric service parameters buffer */
1064 	uint8_t alpa_map[128];	/* AL_PA map from READ_LA */
1065 
1066 	uint32_t lmt;
1067 
1068 	uint32_t fc_topology;	/* link topology, from LINK INIT */
1069 	uint32_t fc_topology_changed;	/* link topology, from LINK INIT */
1070 
1071 	struct lpfc_stats fc_stat;
1072 
1073 	struct lpfc_nodelist fc_fcpnodev; /* nodelist entry for no device */
1074 	uint32_t nport_event_cnt;	/* timestamp for nlplist entry */
1075 
1076 	uint8_t  wwnn[8];
1077 	uint8_t  wwpn[8];
1078 	uint32_t RandomData[7];
1079 	uint8_t  fcp_embed_io;
1080 	uint8_t  nvmet_support;	/* driver supports NVMET */
1081 #define LPFC_NVMET_MAX_PORTS	32
1082 	uint8_t  mds_diags_support;
1083 	uint8_t  bbcredit_support;
1084 	uint8_t  enab_exp_wqcq_pages;
1085 	u8	 nsler; /* Firmware supports FC-NVMe-2 SLER */
1086 
1087 	/* HBA Config Parameters */
1088 	uint32_t cfg_ack0;
1089 	uint32_t cfg_xri_rebalancing;
1090 	uint32_t cfg_xpsgl;
1091 	uint32_t cfg_enable_npiv;
1092 	uint32_t cfg_enable_rrq;
1093 	uint32_t cfg_topology;
1094 	uint32_t cfg_link_speed;
1095 #define LPFC_FCF_FOV 1		/* Fast fcf failover */
1096 #define LPFC_FCF_PRIORITY 2	/* Priority fcf failover */
1097 	uint32_t cfg_fcf_failover_policy;
1098 	uint32_t cfg_fcp_io_sched;
1099 	uint32_t cfg_ns_query;
1100 	uint32_t cfg_fcp2_no_tgt_reset;
1101 	uint32_t cfg_cr_delay;
1102 	uint32_t cfg_cr_count;
1103 	uint32_t cfg_multi_ring_support;
1104 	uint32_t cfg_multi_ring_rctl;
1105 	uint32_t cfg_multi_ring_type;
1106 	uint32_t cfg_poll;
1107 	uint32_t cfg_poll_tmo;
1108 	uint32_t cfg_task_mgmt_tmo;
1109 	uint32_t cfg_use_msi;
1110 	uint32_t cfg_auto_imax;
1111 	uint32_t cfg_fcp_imax;
1112 	uint32_t cfg_force_rscn;
1113 	uint32_t cfg_cq_poll_threshold;
1114 	uint32_t cfg_cq_max_proc_limit;
1115 	uint32_t cfg_fcp_cpu_map;
1116 	uint32_t cfg_fcp_mq_threshold;
1117 	uint32_t cfg_hdw_queue;
1118 	uint32_t cfg_irq_chann;
1119 	uint32_t cfg_suppress_rsp;
1120 	uint32_t cfg_nvme_oas;
1121 	uint32_t cfg_nvme_embed_cmd;
1122 	uint32_t cfg_nvmet_mrq_post;
1123 	uint32_t cfg_nvmet_mrq;
1124 	uint32_t cfg_enable_nvmet;
1125 	uint32_t cfg_nvme_enable_fb;
1126 	uint32_t cfg_nvmet_fb_size;
1127 	uint32_t cfg_total_seg_cnt;
1128 	uint32_t cfg_sg_seg_cnt;
1129 	uint32_t cfg_nvme_seg_cnt;
1130 	uint32_t cfg_scsi_seg_cnt;
1131 	uint32_t cfg_sg_dma_buf_size;
1132 	uint32_t cfg_hba_queue_depth;
1133 	uint32_t cfg_enable_hba_reset;
1134 	uint32_t cfg_enable_hba_heartbeat;
1135 	uint32_t cfg_fof;
1136 	uint32_t cfg_EnableXLane;
1137 	uint8_t cfg_oas_tgt_wwpn[8];
1138 	uint8_t cfg_oas_vpt_wwpn[8];
1139 	uint32_t cfg_oas_lun_state;
1140 #define OAS_LUN_ENABLE	1
1141 #define OAS_LUN_DISABLE	0
1142 	uint32_t cfg_oas_lun_status;
1143 #define OAS_LUN_STATUS_EXISTS	0x01
1144 	uint32_t cfg_oas_flags;
1145 #define OAS_FIND_ANY_VPORT	0x01
1146 #define OAS_FIND_ANY_TARGET	0x02
1147 #define OAS_LUN_VALID	0x04
1148 	uint32_t cfg_oas_priority;
1149 	uint32_t cfg_XLanePriority;
1150 	uint32_t cfg_enable_bg;
1151 	uint32_t cfg_prot_mask;
1152 	uint32_t cfg_prot_guard;
1153 	uint32_t cfg_hostmem_hgp;
1154 	uint32_t cfg_log_verbose;
1155 	uint32_t cfg_enable_fc4_type;
1156 #define LPFC_ENABLE_FCP  1
1157 #define LPFC_ENABLE_NVME 2
1158 #define LPFC_ENABLE_BOTH 3
1159 #if (IS_ENABLED(CONFIG_NVME_FC))
1160 #define LPFC_MAX_ENBL_FC4_TYPE LPFC_ENABLE_BOTH
1161 #define LPFC_DEF_ENBL_FC4_TYPE LPFC_ENABLE_BOTH
1162 #else
1163 #define LPFC_MAX_ENBL_FC4_TYPE LPFC_ENABLE_FCP
1164 #define LPFC_DEF_ENBL_FC4_TYPE LPFC_ENABLE_FCP
1165 #endif
1166 	uint32_t cfg_sriov_nr_virtfn;
1167 	uint32_t cfg_request_firmware_upgrade;
1168 	uint32_t cfg_suppress_link_up;
1169 	uint32_t cfg_rrq_xri_bitmap_sz;
1170 	u32      cfg_fcp_wait_abts_rsp;
1171 	uint32_t cfg_delay_discovery;
1172 	uint32_t cfg_sli_mode;
1173 #define LPFC_INITIALIZE_LINK              0	/* do normal init_link mbox */
1174 #define LPFC_DELAY_INIT_LINK              1	/* layered driver hold off */
1175 #define LPFC_DELAY_INIT_LINK_INDEFINITELY 2	/* wait, manual intervention */
1176 	uint32_t cfg_fdmi_on;
1177 #define LPFC_FDMI_NO_SUPPORT	0	/* FDMI not supported */
1178 #define LPFC_FDMI_SUPPORT	1	/* FDMI supported? */
1179 	uint32_t cfg_enable_SmartSAN;
1180 	uint32_t cfg_enable_mds_diags;
1181 	uint32_t cfg_ras_fwlog_level;
1182 	uint32_t cfg_ras_fwlog_buffsize;
1183 	uint32_t cfg_ras_fwlog_func;
1184 	uint32_t cfg_enable_bbcr;	/* Enable BB Credit Recovery */
1185 	uint32_t cfg_enable_dpp;	/* Enable Direct Packet Push */
1186 	uint32_t cfg_enable_pbde;
1187 	uint32_t cfg_enable_mi;
1188 	struct nvmet_fc_target_port *targetport;
1189 	lpfc_vpd_t vpd;		/* vital product data */
1190 
1191 	u32 cfg_max_vmid;	/* maximum VMIDs allowed per port */
1192 	u32 cfg_vmid_app_header;
1193 #define LPFC_VMID_APP_HEADER_DISABLE	0
1194 #define LPFC_VMID_APP_HEADER_ENABLE	1
1195 	u32 cfg_vmid_priority_tagging;
1196 	u32 cfg_vmid_inactivity_timeout;	/* Time after which the VMID */
1197 						/* deregisters from switch */
1198 	struct pci_dev *pcidev;
1199 	struct list_head      work_list;
1200 	uint32_t              work_ha;      /* Host Attention Bits for WT */
1201 	uint32_t              work_ha_mask; /* HA Bits owned by WT        */
1202 	uint32_t              work_hs;      /* HS stored in case of ERRAT */
1203 	uint32_t              work_status[2]; /* Extra status from SLIM */
1204 
1205 	wait_queue_head_t    work_waitq;
1206 	struct task_struct   *worker_thread;
1207 	unsigned long data_flags;
1208 	uint32_t border_sge_num;
1209 
1210 	uint32_t hbq_in_use;		/* HBQs in use flag */
1211 	uint32_t hbq_count;	        /* Count of configured HBQs */
1212 	struct hbq_s hbqs[LPFC_MAX_HBQS]; /* local copy of hbq indicies  */
1213 
1214 	atomic_t fcp_qidx;         /* next FCP WQ (RR Policy) */
1215 	atomic_t nvme_qidx;        /* next NVME WQ (RR Policy) */
1216 
1217 	phys_addr_t pci_bar0_map;     /* Physical address for PCI BAR0 */
1218 	phys_addr_t pci_bar1_map;     /* Physical address for PCI BAR1 */
1219 	phys_addr_t pci_bar2_map;     /* Physical address for PCI BAR2 */
1220 	void __iomem *slim_memmap_p;	/* Kernel memory mapped address for
1221 					   PCI BAR0 */
1222 	void __iomem *ctrl_regs_memmap_p;/* Kernel memory mapped address for
1223 					    PCI BAR2 */
1224 
1225 	void __iomem *pci_bar0_memmap_p; /* Kernel memory mapped address for
1226 					    PCI BAR0 with dual-ULP support */
1227 	void __iomem *pci_bar2_memmap_p; /* Kernel memory mapped address for
1228 					    PCI BAR2 with dual-ULP support */
1229 	void __iomem *pci_bar4_memmap_p; /* Kernel memory mapped address for
1230 					    PCI BAR4 with dual-ULP support */
1231 #define PCI_64BIT_BAR0	0
1232 #define PCI_64BIT_BAR2	2
1233 #define PCI_64BIT_BAR4	4
1234 	void __iomem *MBslimaddr;	/* virtual address for mbox cmds */
1235 	void __iomem *HAregaddr;	/* virtual address for host attn reg */
1236 	void __iomem *CAregaddr;	/* virtual address for chip attn reg */
1237 	void __iomem *HSregaddr;	/* virtual address for host status
1238 					   reg */
1239 	void __iomem *HCregaddr;	/* virtual address for host ctl reg */
1240 
1241 	struct lpfc_hgp __iomem *host_gp; /* Host side get/put pointers */
1242 	struct lpfc_pgp   *port_gp;
1243 	uint32_t __iomem  *hbq_put;     /* Address in SLIM to HBQ put ptrs */
1244 	uint32_t          *hbq_get;     /* Host mem address of HBQ get ptrs */
1245 
1246 	int brd_no;			/* FC board number */
1247 	char SerialNumber[32];		/* adapter Serial Number */
1248 	char OptionROMVersion[32];	/* adapter BIOS / Fcode version */
1249 	char BIOSVersion[16];		/* Boot BIOS version */
1250 	char ModelDesc[256];		/* Model Description */
1251 	char ModelName[80];		/* Model Name */
1252 	char ProgramType[256];		/* Program Type */
1253 	char Port[20];			/* Port No */
1254 	uint8_t vpd_flag;               /* VPD data flag */
1255 
1256 #define VPD_MODEL_DESC      0x1         /* valid vpd model description */
1257 #define VPD_MODEL_NAME      0x2         /* valid vpd model name */
1258 #define VPD_PROGRAM_TYPE    0x4         /* valid vpd program type */
1259 #define VPD_PORT            0x8         /* valid vpd port data */
1260 #define VPD_MASK            0xf         /* mask for any vpd data */
1261 
1262 
1263 	struct timer_list fcp_poll_timer;
1264 	struct timer_list eratt_poll;
1265 	uint32_t eratt_poll_interval;
1266 
1267 	uint64_t bg_guard_err_cnt;
1268 	uint64_t bg_apptag_err_cnt;
1269 	uint64_t bg_reftag_err_cnt;
1270 
1271 	/* fastpath list. */
1272 	spinlock_t scsi_buf_list_get_lock;  /* SCSI buf alloc list lock */
1273 	spinlock_t scsi_buf_list_put_lock;  /* SCSI buf free list lock */
1274 	struct list_head lpfc_scsi_buf_list_get;
1275 	struct list_head lpfc_scsi_buf_list_put;
1276 	uint32_t total_scsi_bufs;
1277 	struct list_head lpfc_iocb_list;
1278 	uint32_t total_iocbq_bufs;
1279 	struct list_head active_rrq_list;
1280 	spinlock_t hbalock;
1281 	struct work_struct  unblock_request_work; /* SCSI layer unblock IOs */
1282 
1283 	/* dma_mem_pools */
1284 	struct dma_pool *lpfc_sg_dma_buf_pool;
1285 	struct dma_pool *lpfc_mbuf_pool;
1286 	struct dma_pool *lpfc_hrb_pool;	/* header receive buffer pool */
1287 	struct dma_pool *lpfc_drb_pool; /* data receive buffer pool */
1288 	struct dma_pool *lpfc_nvmet_drb_pool; /* data receive buffer pool */
1289 	struct dma_pool *lpfc_hbq_pool;	/* SLI3 hbq buffer pool */
1290 	struct dma_pool *lpfc_cmd_rsp_buf_pool;
1291 	struct lpfc_dma_pool lpfc_mbuf_safety_pool;
1292 
1293 	mempool_t *mbox_mem_pool;
1294 	mempool_t *nlp_mem_pool;
1295 	mempool_t *rrq_pool;
1296 	mempool_t *active_rrq_pool;
1297 
1298 	struct fc_host_statistics link_stats;
1299 	enum lpfc_irq_chann_mode irq_chann_mode;
1300 	enum intr_type_t intr_type;
1301 	uint32_t intr_mode;
1302 #define LPFC_INTR_ERROR	0xFFFFFFFF
1303 	struct list_head port_list;
1304 	spinlock_t port_list_lock;	/* lock for port_list mutations */
1305 	struct lpfc_vport *pport;	/* physical lpfc_vport pointer */
1306 	uint16_t max_vpi;		/* Maximum virtual nports */
1307 #define LPFC_MAX_VPI	0xFF		/* Max number VPI supported 0 - 0xff */
1308 #define LPFC_MAX_VPORTS	0x100		/* Max vports per port, with pport */
1309 	uint16_t max_vports;            /*
1310 					 * For IOV HBAs max_vpi can change
1311 					 * after a reset. max_vports is max
1312 					 * number of vports present. This can
1313 					 * be greater than max_vpi.
1314 					 */
1315 	uint16_t vpi_base;
1316 	uint16_t vfi_base;
1317 	unsigned long *vpi_bmask;	/* vpi allocation table */
1318 	uint16_t *vpi_ids;
1319 	uint16_t vpi_count;
1320 	struct list_head lpfc_vpi_blk_list;
1321 
1322 	/* Data structure used by fabric iocb scheduler */
1323 	struct list_head fabric_iocb_list;
1324 	atomic_t fabric_iocb_count;
1325 	struct timer_list fabric_block_timer;
1326 	unsigned long bit_flags;
1327 	atomic_t num_rsrc_err;
1328 	atomic_t num_cmd_success;
1329 	unsigned long last_rsrc_error_time;
1330 	unsigned long last_ramp_down_time;
1331 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
1332 	struct dentry *hba_debugfs_root;
1333 	atomic_t debugfs_vport_count;
1334 	struct dentry *debug_multixri_pools;
1335 	struct dentry *debug_hbqinfo;
1336 	struct dentry *debug_dumpHostSlim;
1337 	struct dentry *debug_dumpHBASlim;
1338 	struct dentry *debug_InjErrLBA;  /* LBA to inject errors at */
1339 	struct dentry *debug_InjErrNPortID;  /* NPortID to inject errors at */
1340 	struct dentry *debug_InjErrWWPN;  /* WWPN to inject errors at */
1341 	struct dentry *debug_writeGuard; /* inject write guard_tag errors */
1342 	struct dentry *debug_writeApp;   /* inject write app_tag errors */
1343 	struct dentry *debug_writeRef;   /* inject write ref_tag errors */
1344 	struct dentry *debug_readGuard;  /* inject read guard_tag errors */
1345 	struct dentry *debug_readApp;    /* inject read app_tag errors */
1346 	struct dentry *debug_readRef;    /* inject read ref_tag errors */
1347 
1348 	struct dentry *debug_nvmeio_trc;
1349 	struct lpfc_debugfs_nvmeio_trc *nvmeio_trc;
1350 	struct dentry *debug_hdwqinfo;
1351 #ifdef LPFC_HDWQ_LOCK_STAT
1352 	struct dentry *debug_lockstat;
1353 #endif
1354 	struct dentry *debug_cgn_buffer;
1355 	struct dentry *debug_rx_monitor;
1356 	struct dentry *debug_ras_log;
1357 	atomic_t nvmeio_trc_cnt;
1358 	uint32_t nvmeio_trc_size;
1359 	uint32_t nvmeio_trc_output_idx;
1360 
1361 	/* T10 DIF error injection */
1362 	uint32_t lpfc_injerr_wgrd_cnt;
1363 	uint32_t lpfc_injerr_wapp_cnt;
1364 	uint32_t lpfc_injerr_wref_cnt;
1365 	uint32_t lpfc_injerr_rgrd_cnt;
1366 	uint32_t lpfc_injerr_rapp_cnt;
1367 	uint32_t lpfc_injerr_rref_cnt;
1368 	uint32_t lpfc_injerr_nportid;
1369 	struct lpfc_name lpfc_injerr_wwpn;
1370 	sector_t lpfc_injerr_lba;
1371 #define LPFC_INJERR_LBA_OFF	(sector_t)(-1)
1372 
1373 	struct dentry *debug_slow_ring_trc;
1374 	struct lpfc_debugfs_trc *slow_ring_trc;
1375 	atomic_t slow_ring_trc_cnt;
1376 	/* iDiag debugfs sub-directory */
1377 	struct dentry *idiag_root;
1378 	struct dentry *idiag_pci_cfg;
1379 	struct dentry *idiag_bar_acc;
1380 	struct dentry *idiag_que_info;
1381 	struct dentry *idiag_que_acc;
1382 	struct dentry *idiag_drb_acc;
1383 	struct dentry *idiag_ctl_acc;
1384 	struct dentry *idiag_mbx_acc;
1385 	struct dentry *idiag_ext_acc;
1386 	uint8_t lpfc_idiag_last_eq;
1387 #endif
1388 	uint16_t nvmeio_trc_on;
1389 
1390 	/* Used for deferred freeing of ELS data buffers */
1391 	struct list_head elsbuf;
1392 	int elsbuf_cnt;
1393 	int elsbuf_prev_cnt;
1394 
1395 	uint8_t temp_sensor_support;
1396 	/* Fields used for heart beat. */
1397 	unsigned long last_completion_time;
1398 	unsigned long skipped_hb;
1399 	struct timer_list hb_tmofunc;
1400 	struct timer_list rrq_tmr;
1401 	enum hba_temp_state over_temp_state;
1402 	/*
1403 	 * Following bit will be set for all buffer tags which are not
1404 	 * associated with any HBQ.
1405 	 */
1406 #define QUE_BUFTAG_BIT  (1<<31)
1407 	uint32_t buffer_tag_count;
1408 
1409 /* Maximum number of events that can be outstanding at any time*/
1410 #define LPFC_MAX_EVT_COUNT 512
1411 	atomic_t fast_event_count;
1412 	uint32_t fcoe_eventtag;
1413 	uint32_t fcoe_eventtag_at_fcf_scan;
1414 	uint32_t fcoe_cvl_eventtag;
1415 	uint32_t fcoe_cvl_eventtag_attn;
1416 	struct lpfc_fcf fcf;
1417 	uint8_t fc_map[3];
1418 	uint8_t valid_vlan;
1419 	uint16_t vlan_id;
1420 	struct list_head fcf_conn_rec_list;
1421 
1422 	bool defer_flogi_acc_flag;
1423 	uint16_t defer_flogi_acc_rx_id;
1424 	uint16_t defer_flogi_acc_ox_id;
1425 
1426 	spinlock_t ct_ev_lock; /* synchronize access to ct_ev_waiters */
1427 	struct list_head ct_ev_waiters;
1428 	struct unsol_rcv_ct_ctx ct_ctx[LPFC_CT_CTX_MAX];
1429 	uint32_t ctx_idx;
1430 	struct timer_list inactive_vmid_poll;
1431 
1432 	/* RAS Support */
1433 	struct lpfc_ras_fwlog ras_fwlog;
1434 
1435 	uint32_t iocb_cnt;
1436 	uint32_t iocb_max;
1437 	atomic_t sdev_cnt;
1438 	spinlock_t devicelock;	/* lock for luns list */
1439 	mempool_t *device_data_mem_pool;
1440 	struct list_head luns;
1441 #define LPFC_TRANSGRESSION_HIGH_TEMPERATURE	0x0080
1442 #define LPFC_TRANSGRESSION_LOW_TEMPERATURE	0x0040
1443 #define LPFC_TRANSGRESSION_HIGH_VOLTAGE		0x0020
1444 #define LPFC_TRANSGRESSION_LOW_VOLTAGE		0x0010
1445 #define LPFC_TRANSGRESSION_HIGH_TXBIAS		0x0008
1446 #define LPFC_TRANSGRESSION_LOW_TXBIAS		0x0004
1447 #define LPFC_TRANSGRESSION_HIGH_TXPOWER		0x0002
1448 #define LPFC_TRANSGRESSION_LOW_TXPOWER		0x0001
1449 #define LPFC_TRANSGRESSION_HIGH_RXPOWER		0x8000
1450 #define LPFC_TRANSGRESSION_LOW_RXPOWER		0x4000
1451 	uint16_t sfp_alarm;
1452 	uint16_t sfp_warning;
1453 
1454 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
1455 	uint16_t hdwqstat_on;
1456 #define LPFC_CHECK_OFF		0
1457 #define LPFC_CHECK_NVME_IO	1
1458 #define LPFC_CHECK_NVMET_IO	2
1459 #define LPFC_CHECK_SCSI_IO	4
1460 	uint16_t ktime_on;
1461 	uint64_t ktime_data_samples;
1462 	uint64_t ktime_status_samples;
1463 	uint64_t ktime_last_cmd;
1464 	uint64_t ktime_seg1_total;
1465 	uint64_t ktime_seg1_min;
1466 	uint64_t ktime_seg1_max;
1467 	uint64_t ktime_seg2_total;
1468 	uint64_t ktime_seg2_min;
1469 	uint64_t ktime_seg2_max;
1470 	uint64_t ktime_seg3_total;
1471 	uint64_t ktime_seg3_min;
1472 	uint64_t ktime_seg3_max;
1473 	uint64_t ktime_seg4_total;
1474 	uint64_t ktime_seg4_min;
1475 	uint64_t ktime_seg4_max;
1476 	uint64_t ktime_seg5_total;
1477 	uint64_t ktime_seg5_min;
1478 	uint64_t ktime_seg5_max;
1479 	uint64_t ktime_seg6_total;
1480 	uint64_t ktime_seg6_min;
1481 	uint64_t ktime_seg6_max;
1482 	uint64_t ktime_seg7_total;
1483 	uint64_t ktime_seg7_min;
1484 	uint64_t ktime_seg7_max;
1485 	uint64_t ktime_seg8_total;
1486 	uint64_t ktime_seg8_min;
1487 	uint64_t ktime_seg8_max;
1488 	uint64_t ktime_seg9_total;
1489 	uint64_t ktime_seg9_min;
1490 	uint64_t ktime_seg9_max;
1491 	uint64_t ktime_seg10_total;
1492 	uint64_t ktime_seg10_min;
1493 	uint64_t ktime_seg10_max;
1494 #endif
1495 	/* CMF objects */
1496 	struct lpfc_cgn_stat __percpu *cmf_stat;
1497 	uint32_t cmf_interval_rate;  /* timer interval limit in ms */
1498 	uint32_t cmf_timer_cnt;
1499 #define LPFC_CMF_INTERVAL 90
1500 	uint64_t cmf_link_byte_count;
1501 	uint64_t cmf_max_line_rate;
1502 	uint64_t cmf_max_bytes_per_interval;
1503 	uint64_t cmf_last_sync_bw;
1504 #define  LPFC_CMF_BLK_SIZE 512
1505 	struct hrtimer cmf_timer;
1506 	struct hrtimer cmf_stats_timer;	/* 1 minute stats timer  */
1507 	atomic_t cmf_bw_wait;
1508 	atomic_t cmf_busy;
1509 	atomic_t cmf_stop_io;      /* To block request and stop IO's */
1510 	uint32_t cmf_active_mode;
1511 	uint32_t cmf_info_per_interval;
1512 #define LPFC_MAX_CMF_INFO 32
1513 	struct timespec64 cmf_latency;  /* Interval congestion timestamp */
1514 	uint32_t cmf_last_ts;   /* Interval congestion time (ms) */
1515 	uint32_t cmf_active_info;
1516 
1517 	/* Signal / FPIN handling for Congestion Mgmt */
1518 	u8 cgn_reg_fpin;           /* Negotiated value from RDF */
1519 	u8 cgn_init_reg_fpin;      /* Initial value from READ_CONFIG */
1520 #define LPFC_CGN_FPIN_NONE	0x0
1521 #define LPFC_CGN_FPIN_WARN	0x1
1522 #define LPFC_CGN_FPIN_ALARM	0x2
1523 #define LPFC_CGN_FPIN_BOTH	(LPFC_CGN_FPIN_WARN | LPFC_CGN_FPIN_ALARM)
1524 
1525 	u8 cgn_reg_signal;          /* Negotiated value from EDC */
1526 	u8 cgn_init_reg_signal;     /* Initial value from READ_CONFIG */
1527 		/* cgn_reg_signal and cgn_init_reg_signal use
1528 		 * enum fc_edc_cg_signal_cap_types
1529 		 */
1530 	u16 cgn_fpin_frequency;		/* In units of msecs */
1531 #define LPFC_FPIN_INIT_FREQ	0xffff
1532 	u32 cgn_sig_freq;
1533 	u32 cgn_acqe_cnt;
1534 
1535 	/* RX monitor handling for CMF */
1536 	struct lpfc_rx_info_monitor *rx_monitor;
1537 	atomic_t rx_max_read_cnt;       /* Maximum read bytes */
1538 	uint64_t rx_block_cnt;
1539 
1540 	/* Congestion parameters from flash */
1541 	struct lpfc_cgn_param cgn_p;
1542 
1543 	/* Statistics counter for ACQE cgn alarms and warnings */
1544 	struct lpfc_cgn_acqe_stat cgn_acqe_stat;
1545 
1546 	/* Congestion buffer information */
1547 	struct lpfc_dmabuf *cgn_i;      /* Congestion Info buffer */
1548 	atomic_t cgn_fabric_warn_cnt;   /* Total warning cgn events for info */
1549 	atomic_t cgn_fabric_alarm_cnt;  /* Total alarm cgn events for info */
1550 	atomic_t cgn_sync_warn_cnt;     /* Total warning events for SYNC wqe */
1551 	atomic_t cgn_sync_alarm_cnt;    /* Total alarm events for SYNC wqe */
1552 	atomic_t cgn_driver_evt_cnt;    /* Total driver cgn events for fmw */
1553 	atomic_t cgn_latency_evt_cnt;
1554 	atomic64_t cgn_latency_evt;     /* Avg latency per minute */
1555 	unsigned long cgn_evt_timestamp;
1556 #define LPFC_CGN_TIMER_TO_MIN   60000 /* ms in a minute */
1557 	uint32_t cgn_evt_minute;
1558 #define LPFC_SEC_MIN		60UL
1559 #define LPFC_MIN_HOUR		60
1560 #define LPFC_HOUR_DAY		24
1561 #define LPFC_MIN_DAY		(LPFC_MIN_HOUR * LPFC_HOUR_DAY)
1562 
1563 	struct hlist_node cpuhp;	/* used for cpuhp per hba callback */
1564 	struct timer_list cpuhp_poll_timer;
1565 	struct list_head poll_list;	/* slowpath eq polling list */
1566 #define LPFC_POLL_HB	1		/* slowpath heartbeat */
1567 
1568 	char os_host_name[MAXHOSTNAMELEN];
1569 
1570 	/* LD Signaling */
1571 	u32 degrade_activate_threshold;
1572 	u32 degrade_deactivate_threshold;
1573 	u32 fec_degrade_interval;
1574 
1575 	atomic_t dbg_log_idx;
1576 	atomic_t dbg_log_cnt;
1577 	atomic_t dbg_log_dmping;
1578 	struct dbg_log_ent dbg_log[DBG_LOG_SZ];
1579 };
1580 
1581 #define LPFC_MAX_RXMONITOR_ENTRY	800
1582 #define LPFC_MAX_RXMONITOR_DUMP		32
1583 struct rx_info_entry {
1584 	uint64_t cmf_bytes;	/* Total no of read bytes for CMF_SYNC_WQE */
1585 	uint64_t total_bytes;   /* Total no of read bytes requested */
1586 	uint64_t rcv_bytes;     /* Total no of read bytes completed */
1587 	uint64_t avg_io_size;
1588 	uint64_t avg_io_latency;/* Average io latency in microseconds */
1589 	uint64_t max_read_cnt;  /* Maximum read bytes */
1590 	uint64_t max_bytes_per_interval;
1591 	uint32_t cmf_busy;
1592 	uint32_t cmf_info;      /* CMF_SYNC_WQE info */
1593 	uint32_t io_cnt;
1594 	uint32_t timer_utilization;
1595 	uint32_t timer_interval;
1596 };
1597 
1598 struct lpfc_rx_info_monitor {
1599 	struct rx_info_entry *ring; /* info organized in a circular buffer */
1600 	u32 head_idx, tail_idx; /* index to head/tail of ring */
1601 	spinlock_t lock; /* spinlock for ring */
1602 	u32 entries; /* storing number entries/size of ring */
1603 };
1604 
1605 static inline struct Scsi_Host *
lpfc_shost_from_vport(struct lpfc_vport * vport)1606 lpfc_shost_from_vport(struct lpfc_vport *vport)
1607 {
1608 	return container_of((void *) vport, struct Scsi_Host, hostdata[0]);
1609 }
1610 
1611 static inline void
lpfc_set_loopback_flag(struct lpfc_hba * phba)1612 lpfc_set_loopback_flag(struct lpfc_hba *phba)
1613 {
1614 	if (phba->cfg_topology == FLAGS_LOCAL_LB)
1615 		phba->link_flag |= LS_LOOPBACK_MODE;
1616 	else
1617 		phba->link_flag &= ~LS_LOOPBACK_MODE;
1618 }
1619 
1620 static inline int
lpfc_is_link_up(struct lpfc_hba * phba)1621 lpfc_is_link_up(struct lpfc_hba *phba)
1622 {
1623 	return  phba->link_state == LPFC_LINK_UP ||
1624 		phba->link_state == LPFC_CLEAR_LA ||
1625 		phba->link_state == LPFC_HBA_READY;
1626 }
1627 
1628 static inline void
lpfc_worker_wake_up(struct lpfc_hba * phba)1629 lpfc_worker_wake_up(struct lpfc_hba *phba)
1630 {
1631 	/* Set the lpfc data pending flag */
1632 	set_bit(LPFC_DATA_READY, &phba->data_flags);
1633 
1634 	/* Wake up worker thread */
1635 	wake_up(&phba->work_waitq);
1636 	return;
1637 }
1638 
1639 static inline int
lpfc_readl(void __iomem * addr,uint32_t * data)1640 lpfc_readl(void __iomem *addr, uint32_t *data)
1641 {
1642 	uint32_t temp;
1643 	temp = readl(addr);
1644 	if (temp == 0xffffffff)
1645 		return -EIO;
1646 	*data = temp;
1647 	return 0;
1648 }
1649 
1650 static inline int
lpfc_sli_read_hs(struct lpfc_hba * phba)1651 lpfc_sli_read_hs(struct lpfc_hba *phba)
1652 {
1653 	/*
1654 	 * There was a link/board error. Read the status register to retrieve
1655 	 * the error event and process it.
1656 	 */
1657 	phba->sli.slistat.err_attn_event++;
1658 
1659 	/* Save status info and check for unplug error */
1660 	if (lpfc_readl(phba->HSregaddr, &phba->work_hs) ||
1661 		lpfc_readl(phba->MBslimaddr + 0xa8, &phba->work_status[0]) ||
1662 		lpfc_readl(phba->MBslimaddr + 0xac, &phba->work_status[1])) {
1663 		return -EIO;
1664 	}
1665 
1666 	/* Clear chip Host Attention error bit */
1667 	writel(HA_ERATT, phba->HAregaddr);
1668 	readl(phba->HAregaddr); /* flush */
1669 	phba->pport->stopped = 1;
1670 
1671 	return 0;
1672 }
1673 
1674 static inline struct lpfc_sli_ring *
lpfc_phba_elsring(struct lpfc_hba * phba)1675 lpfc_phba_elsring(struct lpfc_hba *phba)
1676 {
1677 	/* Return NULL if sli_rev has become invalid due to bad fw */
1678 	if (phba->sli_rev != LPFC_SLI_REV4  &&
1679 	    phba->sli_rev != LPFC_SLI_REV3  &&
1680 	    phba->sli_rev != LPFC_SLI_REV2)
1681 		return NULL;
1682 
1683 	if (phba->sli_rev == LPFC_SLI_REV4) {
1684 		if (phba->sli4_hba.els_wq)
1685 			return phba->sli4_hba.els_wq->pring;
1686 		else
1687 			return NULL;
1688 	}
1689 	return &phba->sli.sli3_ring[LPFC_ELS_RING];
1690 }
1691 
1692 /**
1693  * lpfc_next_online_cpu - Finds next online CPU on cpumask
1694  * @mask: Pointer to phba's cpumask member.
1695  * @start: starting cpu index
1696  *
1697  * Note: If no valid cpu found, then nr_cpu_ids is returned.
1698  *
1699  **/
1700 static inline unsigned int
lpfc_next_online_cpu(const struct cpumask * mask,unsigned int start)1701 lpfc_next_online_cpu(const struct cpumask *mask, unsigned int start)
1702 {
1703 	unsigned int cpu_it;
1704 
1705 	for_each_cpu_wrap(cpu_it, mask, start) {
1706 		if (cpu_online(cpu_it))
1707 			break;
1708 	}
1709 
1710 	return cpu_it;
1711 }
1712 /**
1713  * lpfc_next_present_cpu - Finds next present CPU after n
1714  * @n: the cpu prior to search
1715  *
1716  * Note: If no next present cpu, then fallback to first present cpu.
1717  *
1718  **/
lpfc_next_present_cpu(int n)1719 static inline unsigned int lpfc_next_present_cpu(int n)
1720 {
1721 	unsigned int cpu;
1722 
1723 	cpu = cpumask_next(n, cpu_present_mask);
1724 
1725 	if (cpu >= nr_cpu_ids)
1726 		cpu = cpumask_first(cpu_present_mask);
1727 
1728 	return cpu;
1729 }
1730 
1731 /**
1732  * lpfc_sli4_mod_hba_eq_delay - update EQ delay
1733  * @phba: Pointer to HBA context object.
1734  * @q: The Event Queue to update.
1735  * @delay: The delay value (in us) to be written.
1736  *
1737  **/
1738 static inline void
lpfc_sli4_mod_hba_eq_delay(struct lpfc_hba * phba,struct lpfc_queue * eq,u32 delay)1739 lpfc_sli4_mod_hba_eq_delay(struct lpfc_hba *phba, struct lpfc_queue *eq,
1740 			   u32 delay)
1741 {
1742 	struct lpfc_register reg_data;
1743 
1744 	reg_data.word0 = 0;
1745 	bf_set(lpfc_sliport_eqdelay_id, &reg_data, eq->queue_id);
1746 	bf_set(lpfc_sliport_eqdelay_delay, &reg_data, delay);
1747 	writel(reg_data.word0, phba->sli4_hba.u.if_type2.EQDregaddr);
1748 	eq->q_mode = delay;
1749 }
1750 
1751 
1752 /*
1753  * Macro that declares tables and a routine to perform enum type to
1754  * ascii string lookup.
1755  *
1756  * Defines a <key,value> table for an enum. Uses xxx_INIT defines for
1757  * the enum to populate the table.  Macro defines a routine (named
1758  * by caller) that will search all elements of the table for the key
1759  * and return the name string if found or "Unrecognized" if not found.
1760  */
1761 #define DECLARE_ENUM2STR_LOOKUP(routine, enum_name, enum_init)		\
1762 static struct {								\
1763 	enum enum_name		value;					\
1764 	char			*name;					\
1765 } fc_##enum_name##_e2str_names[] = enum_init;				\
1766 static const char *routine(enum enum_name table_key)			\
1767 {									\
1768 	int i;								\
1769 	char *name = "Unrecognized";					\
1770 									\
1771 	for (i = 0; i < ARRAY_SIZE(fc_##enum_name##_e2str_names); i++) {\
1772 		if (fc_##enum_name##_e2str_names[i].value == table_key) {\
1773 			name = fc_##enum_name##_e2str_names[i].name;	\
1774 			break;						\
1775 		}							\
1776 	}								\
1777 	return name;							\
1778 }
1779 
1780 /**
1781  * lpfc_is_vmid_enabled - returns if VMID is enabled for either switch types
1782  * @phba: Pointer to HBA context object.
1783  *
1784  * Relationship between the enable, target support and if vmid tag is required
1785  * for the particular combination
1786  * ---------------------------------------------------
1787  * Switch    Enable Flag  Target Support  VMID Needed
1788  * ---------------------------------------------------
1789  * App Id     0              NA              N
1790  * App Id     1               0              N
1791  * App Id     1               1              Y
1792  * Pr Tag     0              NA              N
1793  * Pr Tag     1               0              N
1794  * Pr Tag     1               1              Y
1795  * Pr Tag     2               *              Y
1796  ---------------------------------------------------
1797  *
1798  **/
lpfc_is_vmid_enabled(struct lpfc_hba * phba)1799 static inline int lpfc_is_vmid_enabled(struct lpfc_hba *phba)
1800 {
1801 	return phba->cfg_vmid_app_header || phba->cfg_vmid_priority_tagging;
1802 }
1803 
1804 static inline
get_job_ulpstatus(struct lpfc_hba * phba,struct lpfc_iocbq * iocbq)1805 u8 get_job_ulpstatus(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1806 {
1807 	if (phba->sli_rev == LPFC_SLI_REV4)
1808 		return bf_get(lpfc_wcqe_c_status, &iocbq->wcqe_cmpl);
1809 	else
1810 		return iocbq->iocb.ulpStatus;
1811 }
1812 
1813 static inline
get_job_word4(struct lpfc_hba * phba,struct lpfc_iocbq * iocbq)1814 u32 get_job_word4(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1815 {
1816 	if (phba->sli_rev == LPFC_SLI_REV4)
1817 		return iocbq->wcqe_cmpl.parameter;
1818 	else
1819 		return iocbq->iocb.un.ulpWord[4];
1820 }
1821 
1822 static inline
get_job_cmnd(struct lpfc_hba * phba,struct lpfc_iocbq * iocbq)1823 u8 get_job_cmnd(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1824 {
1825 	if (phba->sli_rev == LPFC_SLI_REV4)
1826 		return bf_get(wqe_cmnd, &iocbq->wqe.generic.wqe_com);
1827 	else
1828 		return iocbq->iocb.ulpCommand;
1829 }
1830 
1831 static inline
get_job_ulpcontext(struct lpfc_hba * phba,struct lpfc_iocbq * iocbq)1832 u16 get_job_ulpcontext(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1833 {
1834 	if (phba->sli_rev == LPFC_SLI_REV4)
1835 		return bf_get(wqe_ctxt_tag, &iocbq->wqe.generic.wqe_com);
1836 	else
1837 		return iocbq->iocb.ulpContext;
1838 }
1839 
1840 static inline
get_job_rcvoxid(struct lpfc_hba * phba,struct lpfc_iocbq * iocbq)1841 u16 get_job_rcvoxid(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1842 {
1843 	if (phba->sli_rev == LPFC_SLI_REV4)
1844 		return bf_get(wqe_rcvoxid, &iocbq->wqe.generic.wqe_com);
1845 	else
1846 		return iocbq->iocb.unsli3.rcvsli3.ox_id;
1847 }
1848 
1849 static inline
get_job_data_placed(struct lpfc_hba * phba,struct lpfc_iocbq * iocbq)1850 u32 get_job_data_placed(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1851 {
1852 	if (phba->sli_rev == LPFC_SLI_REV4)
1853 		return iocbq->wcqe_cmpl.total_data_placed;
1854 	else
1855 		return iocbq->iocb.un.genreq64.bdl.bdeSize;
1856 }
1857 
1858 static inline
get_job_abtsiotag(struct lpfc_hba * phba,struct lpfc_iocbq * iocbq)1859 u32 get_job_abtsiotag(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1860 {
1861 	if (phba->sli_rev == LPFC_SLI_REV4)
1862 		return iocbq->wqe.abort_cmd.wqe_com.abort_tag;
1863 	else
1864 		return iocbq->iocb.un.acxri.abortIoTag;
1865 }
1866 
1867 static inline
get_job_els_rsp64_did(struct lpfc_hba * phba,struct lpfc_iocbq * iocbq)1868 u32 get_job_els_rsp64_did(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1869 {
1870 	if (phba->sli_rev == LPFC_SLI_REV4)
1871 		return bf_get(wqe_els_did, &iocbq->wqe.els_req.wqe_dest);
1872 	else
1873 		return iocbq->iocb.un.elsreq64.remoteID;
1874 }
1875