1	/*******************************************************************
2	* This file is part of the Emulex Linux Device Driver for *
3	* Fibre Channel Host Bus Adapters. *
4	* Copyright (C) 2017-2024 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	enum lpfc_fc_flag {
539	/* Several of these flags are HBA centric and should be moved to
540	* phba->link_flag (e.g. FC_PTP, FC_PUBLIC_LOOP)
541	*/
542	FC_PT2PT, /* pt2pt with no fabric */
543	FC_PT2PT_PLOGI, /* pt2pt initiate PLOGI */
544	FC_DISC_TMO, /* Discovery timer running */
545	FC_PUBLIC_LOOP, /* Public loop */
546	FC_LBIT, /* LOGIN bit in loopinit set */
547	FC_RSCN_MODE, /* RSCN cmd rcv'ed */
548	FC_NLP_MORE, /* More node to process in node tbl */
549	FC_OFFLINE_MODE, /* Interface is offline for diag */
550	FC_FABRIC, /* We are fabric attached */
551	FC_VPORT_LOGO_RCVD, /* LOGO received on vport */
552	FC_RSCN_DISCOVERY, /* Auth all devices after RSCN */
553	FC_LOGO_RCVD_DID_CHNG, /* FDISC on phys port detect DID chng */
554	FC_PT2PT_NO_NVME, /* Don't send NVME PRLI */
555	FC_SCSI_SCAN_TMO, /* scsi scan timer running */
556	FC_ABORT_DISCOVERY, /* we want to abort discovery */
557	FC_NDISC_ACTIVE, /* NPort discovery active */
558	FC_BYPASSED_MODE, /* NPort is in bypassed mode */
559	FC_VPORT_NEEDS_REG_VPI, /* Needs to have its vpi registered */
560	FC_RSCN_DEFERRED, /* A deferred RSCN being processed */
561	FC_VPORT_NEEDS_INIT_VPI, /* Need to INIT_VPI before FDISC */
562	FC_VPORT_CVL_RCVD, /* VLink failed due to CVL */
563	FC_VFI_REGISTERED, /* VFI is registered */
564	FC_FDISC_COMPLETED, /* FDISC completed */
565	FC_DISC_DELAYED, /* Delay NPort discovery */
566	};
567
568	enum lpfc_load_flag {
569	FC_LOADING, /* HBA in process of loading drvr */
570	FC_UNLOADING, /* HBA in process of unloading drvr */
571	FC_ALLOW_FDMI, /* port is ready for FDMI requests */
572	FC_ALLOW_VMID, /* Allow VMID I/Os */
573	FC_DEREGISTER_ALL_APP_ID /* Deregister all VMIDs */
574	};
575
576	struct lpfc_vport {
577	struct lpfc_hba *phba;
578	struct list_head listentry;
579	uint8_t port_type;
580	#define LPFC_PHYSICAL_PORT 1
581	#define LPFC_NPIV_PORT 2
582	#define LPFC_FABRIC_PORT 3
583	enum discovery_state port_state;
584
585	uint16_t vpi;
586	uint16_t vfi;
587	uint8_t vpi_state;
588	#define LPFC_VPI_REGISTERED 0x1
589
590	unsigned long fc_flag; /* FC flags */
591
592	uint32_t ct_flags;
593	#define FC_CT_RFF_ID 0x1 /* RFF_ID accepted by switch */
594	#define FC_CT_RNN_ID 0x2 /* RNN_ID accepted by switch */
595	#define FC_CT_RSNN_NN 0x4 /* RSNN_NN accepted by switch */
596	#define FC_CT_RSPN_ID 0x8 /* RSPN_ID accepted by switch */
597	#define FC_CT_RFT_ID 0x10 /* RFT_ID accepted by switch */
598	#define FC_CT_RPRT_DEFER 0x20 /* Defer issuing FDMI RPRT */
599
600	struct list_head fc_nodes;
601	spinlock_t fc_nodes_list_lock; /* spinlock for fc_nodes list */
602
603	/* Keep counters for the number of entries in each list. */
604	atomic_t fc_plogi_cnt;
605	atomic_t fc_adisc_cnt;
606	atomic_t fc_reglogin_cnt;
607	atomic_t fc_prli_cnt;
608	atomic_t fc_unmap_cnt;
609	atomic_t fc_map_cnt;
610	atomic_t fc_npr_cnt;
611	atomic_t fc_unused_cnt;
612
613	struct serv_parm fc_sparam; /* buffer for our service parameters */
614
615	uint32_t fc_myDID; /* fibre channel S_ID */
616	uint32_t fc_prevDID; /* previous fibre channel S_ID */
617	struct lpfc_name fabric_portname;
618	struct lpfc_name fabric_nodename;
619
620	int32_t stopped; /* HBA has not been restarted since last ERATT */
621	uint8_t fc_linkspeed; /* Link speed after last READ_LA */
622
623	uint32_t num_disc_nodes; /* in addition to hba_state */
624	uint32_t gidft_inp; /* cnt of outstanding GID_FTs */
625
626	uint32_t fc_nlp_cnt; /* outstanding NODELIST requests */
627	uint32_t fc_rscn_id_cnt; /* count of RSCNs payloads in list */
628	uint32_t fc_rscn_flush; /* flag use of fc_rscn_id_list */
629	struct lpfc_dmabuf *fc_rscn_id_list[FC_MAX_HOLD_RSCN];
630	struct lpfc_name fc_nodename; /* fc nodename */
631	struct lpfc_name fc_portname; /* fc portname */
632
633	struct lpfc_work_evt disc_timeout_evt;
634
635	struct timer_list fc_disctmo; /* Discovery rescue timer */
636	uint8_t fc_ns_retry; /* retries for fabric nameserver */
637	uint32_t fc_prli_sent; /* cntr for outstanding PRLIs */
638
639	spinlock_t work_port_lock;
640	uint32_t work_port_events; /* Timeout to be handled */
641	#define WORKER_DISC_TMO 0x1 /* vport: Discovery timeout */
642	#define WORKER_ELS_TMO 0x2 /* vport: ELS timeout */
643	#define WORKER_DELAYED_DISC_TMO 0x8 /* vport: delayed discovery */
644
645	#define WORKER_MBOX_TMO 0x100 /* hba: MBOX timeout */
646	#define WORKER_HB_TMO 0x200 /* hba: Heart beat timeout */
647	#define WORKER_FABRIC_BLOCK_TMO 0x400 /* hba: fabric block timeout */
648	#define WORKER_RAMP_DOWN_QUEUE 0x800 /* hba: Decrease Q depth */
649	#define WORKER_RAMP_UP_QUEUE 0x1000 /* hba: Increase Q depth */
650	#define WORKER_SERVICE_TXQ 0x2000 /* hba: IOCBs on the txq */
651	#define WORKER_CHECK_INACTIVE_VMID 0x4000 /* hba: check inactive vmids */
652	#define WORKER_CHECK_VMID_ISSUE_QFPA 0x8000 /* vport: Check if qfpa needs
653	* to be issued */
654
655	struct timer_list els_tmofunc;
656	struct timer_list delayed_disc_tmo;
657
658	unsigned long load_flag;
659	/* Vport Config Parameters */
660	uint32_t cfg_scan_down;
661	uint32_t cfg_lun_queue_depth;
662	uint32_t cfg_nodev_tmo;
663	uint32_t cfg_devloss_tmo;
664	uint32_t cfg_restrict_login;
665	uint32_t cfg_peer_port_login;
666	uint32_t cfg_fcp_class;
667	uint32_t cfg_use_adisc;
668	uint32_t cfg_discovery_threads;
669	uint32_t cfg_log_verbose;
670	uint32_t cfg_enable_fc4_type;
671	uint32_t cfg_max_luns;
672	uint32_t cfg_enable_da_id;
673	uint32_t cfg_max_scsicmpl_time;
674	uint32_t cfg_tgt_queue_depth;
675	uint32_t cfg_first_burst_size;
676	uint32_t dev_loss_tmo_changed;
677	/* VMID parameters */
678	u8 lpfc_vmid_host_uuid[16];
679	u32 max_vmid; /* maximum VMIDs allowed per port */
680	u32 cur_vmid_cnt; /* Current VMID count */
681	#define LPFC_MIN_VMID 4
682	#define LPFC_MAX_VMID 255
683	u32 vmid_inactivity_timeout; /* Time after which the VMID */
684	/* deregisters from switch */
685	u32 vmid_priority_tagging;
686	#define LPFC_VMID_PRIO_TAG_DISABLE 0 /* Disable */
687	#define LPFC_VMID_PRIO_TAG_SUP_TARGETS 1 /* Allow supported targets only */
688	#define LPFC_VMID_PRIO_TAG_ALL_TARGETS 2 /* Allow all targets */
689	unsigned long *vmid_priority_range;
690	#define LPFC_VMID_MAX_PRIORITY_RANGE 256
691	#define LPFC_VMID_PRIORITY_BITMAP_SIZE 32
692	u8 vmid_flag;
693	#define LPFC_VMID_IN_USE 0x1
694	#define LPFC_VMID_ISSUE_QFPA 0x2
695	#define LPFC_VMID_QFPA_CMPL 0x4
696	#define LPFC_VMID_QOS_ENABLED 0x8
697	#define LPFC_VMID_TIMER_ENBLD 0x10
698	#define LPFC_VMID_TYPE_PRIO 0x20
699	struct fc_qfpa_res *qfpa_res;
700
701	struct fc_vport *fc_vport;
702
703	struct lpfc_vmid *vmid;
704	DECLARE_HASHTABLE(hash_table, 8);
705	rwlock_t vmid_lock;
706	struct lpfc_vmid_priority_info vmid_priority;
707
708	#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
709	struct dentry *debug_disc_trc;
710	struct dentry *debug_nodelist;
711	struct dentry *debug_nvmestat;
712	struct dentry *debug_scsistat;
713	struct dentry *debug_ioktime;
714	struct dentry *debug_hdwqstat;
715	struct dentry *vport_debugfs_root;
716	struct lpfc_debugfs_trc *disc_trc;
717	atomic_t disc_trc_cnt;
718	#endif
719	struct list_head rcv_buffer_list;
720	unsigned long rcv_buffer_time_stamp;
721	uint32_t vport_flag;
722	#define STATIC_VPORT 0x1
723	#define FAWWPN_PARAM_CHG 0x2
724
725	uint16_t fdmi_num_disc;
726	uint32_t fdmi_hba_mask;
727	uint32_t fdmi_port_mask;
728
729	/* There is a single nvme instance per vport. */
730	struct nvme_fc_local_port *localport;
731	uint8_t nvmei_support; /* driver supports NVME Initiator */
732	uint32_t last_fcp_wqidx;
733	uint32_t rcv_flogi_cnt; /* How many unsol FLOGIs ACK'd. */
734	};
735
736	struct hbq_s {
737	uint16_t entry_count; /* Current number of HBQ slots */
738	uint16_t buffer_count; /* Current number of buffers posted */
739	uint32_t next_hbqPutIdx; /* Index to next HBQ slot to use */
740	uint32_t hbqPutIdx; /* HBQ slot to use */
741	uint32_t local_hbqGetIdx; /* Local copy of Get index from Port */
742	void *hbq_virt; /* Virtual ptr to this hbq */
743	struct list_head hbq_buffer_list; /* buffers assigned to this HBQ */
744	/* Callback for HBQ buffer allocation */
745	struct hbq_dmabuf *(*hbq_alloc_buffer) (struct lpfc_hba *);
746	/* Callback for HBQ buffer free */
747	void (*hbq_free_buffer) (struct lpfc_hba *,
748	struct hbq_dmabuf *);
749	};
750
751	/* this matches the position in the lpfc_hbq_defs array */
752	#define LPFC_ELS_HBQ 0
753	#define LPFC_MAX_HBQS 1
754
755	enum hba_temp_state {
756	HBA_NORMAL_TEMP,
757	HBA_OVER_TEMP
758	};
759
760	enum intr_type_t {
761	NONE = 0,
762	INTx,
763	MSI,
764	MSIX,
765	};
766
767	#define LPFC_CT_CTX_MAX 64
768	struct unsol_rcv_ct_ctx {
769	uint32_t ctxt_id;
770	uint32_t SID;
771	uint32_t valid;
772	#define UNSOL_INVALID 0
773	#define UNSOL_VALID 1
774	uint16_t oxid;
775	uint16_t rxid;
776	};
777
778	#define LPFC_USER_LINK_SPEED_AUTO 0 /* auto select (default)*/
779	#define LPFC_USER_LINK_SPEED_1G 1 /* 1 Gigabaud */
780	#define LPFC_USER_LINK_SPEED_2G 2 /* 2 Gigabaud */
781	#define LPFC_USER_LINK_SPEED_4G 4 /* 4 Gigabaud */
782	#define LPFC_USER_LINK_SPEED_8G 8 /* 8 Gigabaud */
783	#define LPFC_USER_LINK_SPEED_10G 10 /* 10 Gigabaud */
784	#define LPFC_USER_LINK_SPEED_16G 16 /* 16 Gigabaud */
785	#define LPFC_USER_LINK_SPEED_32G 32 /* 32 Gigabaud */
786	#define LPFC_USER_LINK_SPEED_64G 64 /* 64 Gigabaud */
787	#define LPFC_USER_LINK_SPEED_MAX LPFC_USER_LINK_SPEED_64G
788
789	#define LPFC_LINK_SPEED_STRING "0, 1, 2, 4, 8, 10, 16, 32, 64"
790
791	enum nemb_type {
792	nemb_mse = 1,
793	nemb_hbd
794	};
795
796	enum mbox_type {
797	mbox_rd = 1,
798	mbox_wr
799	};
800
801	enum dma_type {
802	dma_mbox = 1,
803	dma_ebuf
804	};
805
806	enum sta_type {
807	sta_pre_addr = 1,
808	sta_pos_addr
809	};
810
811	struct lpfc_mbox_ext_buf_ctx {
812	uint32_t state;
813	#define LPFC_BSG_MBOX_IDLE 0
814	#define LPFC_BSG_MBOX_HOST 1
815	#define LPFC_BSG_MBOX_PORT 2
816	#define LPFC_BSG_MBOX_DONE 3
817	#define LPFC_BSG_MBOX_ABTS 4
818	enum nemb_type nembType;
819	enum mbox_type mboxType;
820	uint32_t numBuf;
821	uint32_t mbxTag;
822	uint32_t seqNum;
823	struct lpfc_dmabuf *mbx_dmabuf;
824	struct list_head ext_dmabuf_list;
825	};
826
827	struct lpfc_epd_pool {
828	/* Expedite pool */
829	struct list_head list;
830	u32 count;
831	spinlock_t lock; /* lock for expedite pool */
832	};
833
834	enum ras_state {
835	INACTIVE,
836	REG_INPROGRESS,
837	ACTIVE
838	};
839
840	struct lpfc_ras_fwlog {
841	uint8_t *fwlog_buff;
842	uint32_t fw_buffcount; /* Buffer size posted to FW */
843	#define LPFC_RAS_BUFF_ENTERIES 16 /* Each entry can hold max of 64k */
844	#define LPFC_RAS_MAX_ENTRY_SIZE (64 * 1024)
845	#define LPFC_RAS_MIN_BUFF_POST_SIZE (256 * 1024)
846	#define LPFC_RAS_MAX_BUFF_POST_SIZE (1024 * 1024)
847	uint32_t fw_loglevel; /* Log level set */
848	struct lpfc_dmabuf lwpd;
849	struct list_head fwlog_buff_list;
850
851	/* RAS support status on adapter */
852	bool ras_hwsupport; /* RAS Support available on HW or not */
853	bool ras_enabled; /* Ras Enabled for the function */
854	#define LPFC_RAS_DISABLE_LOGGING 0x00
855	#define LPFC_RAS_ENABLE_LOGGING 0x01
856	enum ras_state state; /* RAS logging running state */
857	};
858
859	#define DBG_LOG_STR_SZ 256
860	#define DBG_LOG_SZ 256
861
862	struct dbg_log_ent {
863	char log[DBG_LOG_STR_SZ];
864	u64 t_ns;
865	};
866
867	enum lpfc_irq_chann_mode {
868	/* Assign IRQs to all possible cpus that have hardware queues */
869	NORMAL_MODE,
870
871	/* Assign IRQs only to cpus on the same numa node as HBA */
872	NUMA_MODE,
873
874	/* Assign IRQs only on non-hyperthreaded CPUs. This is the
875	* same as normal_mode, but assign IRQS only on physical CPUs.
876	*/
877	NHT_MODE,
878	};
879
880	enum lpfc_hba_bit_flags {
881	FABRIC_COMANDS_BLOCKED,
882	HBA_PCI_ERR,
883	MBX_TMO_ERR,
884	};
885
886	struct lpfc_hba {
887	/* SCSI interface function jump table entries */
888	struct lpfc_io_buf * (*lpfc_get_scsi_buf)
889	(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
890	struct scsi_cmnd *cmnd);
891	int (*lpfc_scsi_prep_dma_buf)
892	(struct lpfc_hba *, struct lpfc_io_buf *);
893	void (*lpfc_scsi_unprep_dma_buf)
894	(struct lpfc_hba *, struct lpfc_io_buf *);
895	void (*lpfc_release_scsi_buf)
896	(struct lpfc_hba *, struct lpfc_io_buf *);
897	void (*lpfc_rampdown_queue_depth)
898	(struct lpfc_hba *);
899	void (*lpfc_scsi_prep_cmnd)
900	(struct lpfc_vport *, struct lpfc_io_buf *,
901	struct lpfc_nodelist *);
902	int (*lpfc_scsi_prep_cmnd_buf)
903	(struct lpfc_vport *vport,
904	struct lpfc_io_buf *lpfc_cmd,
905	uint8_t tmo);
906	int (*lpfc_scsi_prep_task_mgmt_cmd)
907	(struct lpfc_vport *vport,
908	struct lpfc_io_buf *lpfc_cmd,
909	u64 lun, u8 task_mgmt_cmd);
910
911	/* IOCB interface function jump table entries */
912	int (*__lpfc_sli_issue_iocb)
913	(struct lpfc_hba *, uint32_t,
914	struct lpfc_iocbq *, uint32_t);
915	int (*__lpfc_sli_issue_fcp_io)
916	(struct lpfc_hba *phba, uint32_t ring_number,
917	struct lpfc_iocbq *piocb, uint32_t flag);
918	void (*__lpfc_sli_release_iocbq)(struct lpfc_hba *,
919	struct lpfc_iocbq *);
920	int (*lpfc_hba_down_post)(struct lpfc_hba *phba);
921
922	/* MBOX interface function jump table entries */
923	int (*lpfc_sli_issue_mbox)
924	(struct lpfc_hba *, LPFC_MBOXQ_t *, uint32_t);
925
926	/* Slow-path IOCB process function jump table entries */
927	void (*lpfc_sli_handle_slow_ring_event)
928	(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
929	uint32_t mask);
930
931	/* INIT device interface function jump table entries */
932	int (*lpfc_sli_hbq_to_firmware)
933	(struct lpfc_hba *, uint32_t, struct hbq_dmabuf *);
934	int (*lpfc_sli_brdrestart)
935	(struct lpfc_hba *);
936	int (*lpfc_sli_brdready)
937	(struct lpfc_hba *, uint32_t);
938	void (*lpfc_handle_eratt)
939	(struct lpfc_hba *);
940	void (*lpfc_stop_port)
941	(struct lpfc_hba *);
942	int (*lpfc_hba_init_link)
943	(struct lpfc_hba *, uint32_t);
944	int (*lpfc_hba_down_link)
945	(struct lpfc_hba *, uint32_t);
946	int (*lpfc_selective_reset)
947	(struct lpfc_hba *);
948
949	int (*lpfc_bg_scsi_prep_dma_buf)
950	(struct lpfc_hba *, struct lpfc_io_buf *);
951
952	/* Prep SLI WQE/IOCB jump table entries */
953	void (*__lpfc_sli_prep_els_req_rsp)(struct lpfc_iocbq *cmdiocbq,
954	struct lpfc_vport *vport,
955	struct lpfc_dmabuf *bmp,
956	u16 cmd_size, u32 did, u32 elscmd,
957	u8 tmo, u8 expect_rsp);
958	void (*__lpfc_sli_prep_gen_req)(struct lpfc_iocbq *cmdiocbq,
959	struct lpfc_dmabuf *bmp, u16 rpi,
960	u32 num_entry, u8 tmo);
961	void (*__lpfc_sli_prep_xmit_seq64)(struct lpfc_iocbq *cmdiocbq,
962	struct lpfc_dmabuf *bmp, u16 rpi,
963	u16 ox_id, u32 num_entry, u8 rctl,
964	u8 last_seq, u8 cr_cx_cmd);
965	void (*__lpfc_sli_prep_abort_xri)(struct lpfc_iocbq *cmdiocbq,
966	u16 ulp_context, u16 iotag,
967	u8 ulp_class, u16 cqid, bool ia,
968	bool wqec);
969
970	/* expedite pool */
971	struct lpfc_epd_pool epd_pool;
972
973	/* SLI4 specific HBA data structure */
974	struct lpfc_sli4_hba sli4_hba;
975
976	struct workqueue_struct *wq;
977	struct delayed_work eq_delay_work;
978
979	#define LPFC_IDLE_STAT_DELAY 1000
980	struct delayed_work idle_stat_delay_work;
981
982	struct lpfc_sli sli;
983	uint8_t pci_dev_grp; /* lpfc PCI dev group: 0x0, 0x1, 0x2,... */
984	uint32_t sli_rev; /* SLI2, SLI3, or SLI4 */
985	uint32_t sli3_options; /* Mask of enabled SLI3 options */
986	#define LPFC_SLI3_HBQ_ENABLED 0x01
987	#define LPFC_SLI3_NPIV_ENABLED 0x02
988	#define LPFC_SLI3_VPORT_TEARDOWN 0x04
989	#define LPFC_SLI3_CRP_ENABLED 0x08
990	#define LPFC_SLI3_BG_ENABLED 0x20
991	#define LPFC_SLI3_DSS_ENABLED 0x40
992	#define LPFC_SLI4_PERFH_ENABLED 0x80
993	#define LPFC_SLI4_PHWQ_ENABLED 0x100
994	uint32_t iocb_cmd_size;
995	uint32_t iocb_rsp_size;
996
997	struct lpfc_trunk_link trunk_link;
998	enum hba_state link_state;
999	uint32_t link_flag; /* link state flags */
1000	#define LS_LOOPBACK_MODE 0x1 /* NPort is in Loopback mode */
1001	/* This flag is set while issuing */
1002	/* INIT_LINK mailbox command */
1003	#define LS_NPIV_FAB_SUPPORTED 0x2 /* Fabric supports NPIV */
1004	#define LS_IGNORE_ERATT 0x4 /* intr handler should ignore ERATT */
1005	#define LS_MDS_LINK_DOWN 0x8 /* MDS Diagnostics Link Down */
1006	#define LS_MDS_LOOPBACK 0x10 /* MDS Diagnostics Link Up (Loopback) */
1007	#define LS_CT_VEN_RPA 0x20 /* Vendor RPA sent to switch */
1008	#define LS_EXTERNAL_LOOPBACK 0x40 /* External loopback plug inserted */
1009
1010	uint32_t hba_flag; /* hba generic flags */
1011	#define HBA_ERATT_HANDLED 0x1 /* This flag is set when eratt handled */
1012	#define DEFER_ERATT 0x2 /* Deferred error attention in progress */
1013	#define HBA_FCOE_MODE 0x4 /* HBA function in FCoE Mode */
1014	#define HBA_SP_QUEUE_EVT 0x8 /* Slow-path qevt posted to worker thread*/
1015	#define HBA_POST_RECEIVE_BUFFER 0x10 /* Rcv buffers need to be posted */
1016	#define HBA_PERSISTENT_TOPO 0x20 /* Persistent topology support in hba */
1017	#define ELS_XRI_ABORT_EVENT 0x40 /* ELS_XRI abort event was queued */
1018	#define ASYNC_EVENT 0x80
1019	#define LINK_DISABLED 0x100 /* Link disabled by user */
1020	#define FCF_TS_INPROG 0x200 /* FCF table scan in progress */
1021	#define FCF_RR_INPROG 0x400 /* FCF roundrobin flogi in progress */
1022	#define HBA_FIP_SUPPORT 0x800 /* FIP support in HBA */
1023	#define HBA_DEVLOSS_TMO 0x2000 /* HBA in devloss timeout */
1024	#define HBA_RRQ_ACTIVE 0x4000 /* process the rrq active list */
1025	#define HBA_IOQ_FLUSH 0x8000 /* FCP/NVME I/O queues being flushed */
1026	#define HBA_RECOVERABLE_UE 0x20000 /* Firmware supports recoverable UE */
1027	#define HBA_FORCED_LINK_SPEED 0x40000 /*
1028	* Firmware supports Forced Link Speed
1029	* capability
1030	*/
1031	#define HBA_FLOGI_ISSUED 0x100000 /* FLOGI was issued */
1032	#define HBA_DEFER_FLOGI 0x800000 /* Defer FLOGI till read_sparm cmpl */
1033	#define HBA_SETUP 0x1000000 /* Signifies HBA setup is completed */
1034	#define HBA_NEEDS_CFG_PORT 0x2000000 /* SLI3 - needs a CONFIG_PORT mbox */
1035	#define HBA_HBEAT_INP 0x4000000 /* mbox HBEAT is in progress */
1036	#define HBA_HBEAT_TMO 0x8000000 /* HBEAT initiated after timeout */
1037	#define HBA_FLOGI_OUTSTANDING 0x10000000 /* FLOGI is outstanding */
1038	#define HBA_RHBA_CMPL 0x20000000 /* RHBA FDMI command is successful */
1039
1040	struct completion *fw_dump_cmpl; /* cmpl event tracker for fw_dump */
1041	uint32_t fcp_ring_in_use; /* When polling test if intr-hndlr active*/
1042	struct lpfc_dmabuf slim2p;
1043
1044	MAILBOX_t *mbox;
1045	uint32_t *mbox_ext;
1046	struct lpfc_mbox_ext_buf_ctx mbox_ext_buf_ctx;
1047	uint32_t ha_copy;
1048	struct _PCB *pcb;
1049	struct _IOCB *IOCBs;
1050
1051	struct lpfc_dmabuf hbqslimp;
1052
1053	uint16_t pci_cfg_value;
1054
1055	uint8_t fc_linkspeed; /* Link speed after last READ_LA */
1056
1057	uint32_t fc_eventTag; /* event tag for link attention */
1058	uint32_t link_events;
1059
1060	/* These fields used to be binfo */
1061	uint32_t fc_pref_DID; /* preferred D_ID */
1062	uint8_t fc_pref_ALPA; /* preferred AL_PA */
1063	uint32_t fc_edtovResol; /* E_D_TOV timer resolution */
1064	uint32_t fc_edtov; /* E_D_TOV timer value */
1065	uint32_t fc_arbtov; /* ARB_TOV timer value */
1066	uint32_t fc_ratov; /* R_A_TOV timer value */
1067	uint32_t fc_rttov; /* R_T_TOV timer value */
1068	uint32_t fc_altov; /* AL_TOV timer value */
1069	uint32_t fc_crtov; /* C_R_TOV timer value */
1070
1071	struct serv_parm fc_fabparam; /* fabric service parameters buffer */
1072	uint8_t alpa_map[128]; /* AL_PA map from READ_LA */
1073
1074	uint32_t lmt;
1075
1076	uint32_t fc_topology; /* link topology, from LINK INIT */
1077	uint32_t fc_topology_changed; /* link topology, from LINK INIT */
1078
1079	struct lpfc_stats fc_stat;
1080
1081	struct lpfc_nodelist fc_fcpnodev; /* nodelist entry for no device */
1082	uint32_t nport_event_cnt; /* timestamp for nlplist entry */
1083
1084	uint8_t wwnn[8];
1085	uint8_t wwpn[8];
1086	uint32_t RandomData[7];
1087	uint8_t fcp_embed_io;
1088	uint8_t nvmet_support; /* driver supports NVMET */
1089	#define LPFC_NVMET_MAX_PORTS 32
1090	uint8_t mds_diags_support;
1091	uint8_t bbcredit_support;
1092	uint8_t enab_exp_wqcq_pages;
1093	u8 nsler; /* Firmware supports FC-NVMe-2 SLER */
1094
1095	/* HBA Config Parameters */
1096	uint32_t cfg_ack0;
1097	uint32_t cfg_xri_rebalancing;
1098	uint32_t cfg_xpsgl;
1099	uint32_t cfg_enable_npiv;
1100	uint32_t cfg_enable_rrq;
1101	uint32_t cfg_topology;
1102	uint32_t cfg_link_speed;
1103	#define LPFC_FCF_FOV 1 /* Fast fcf failover */
1104	#define LPFC_FCF_PRIORITY 2 /* Priority fcf failover */
1105	uint32_t cfg_fcf_failover_policy;
1106	uint32_t cfg_fcp_io_sched;
1107	uint32_t cfg_ns_query;
1108	uint32_t cfg_fcp2_no_tgt_reset;
1109	uint32_t cfg_cr_delay;
1110	uint32_t cfg_cr_count;
1111	uint32_t cfg_multi_ring_support;
1112	uint32_t cfg_multi_ring_rctl;
1113	uint32_t cfg_multi_ring_type;
1114	uint32_t cfg_poll;
1115	uint32_t cfg_poll_tmo;
1116	uint32_t cfg_task_mgmt_tmo;
1117	uint32_t cfg_use_msi;
1118	uint32_t cfg_auto_imax;
1119	uint32_t cfg_fcp_imax;
1120	uint32_t cfg_force_rscn;
1121	uint32_t cfg_cq_poll_threshold;
1122	uint32_t cfg_cq_max_proc_limit;
1123	uint32_t cfg_fcp_cpu_map;
1124	uint32_t cfg_fcp_mq_threshold;
1125	uint32_t cfg_hdw_queue;
1126	uint32_t cfg_irq_chann;
1127	uint32_t cfg_suppress_rsp;
1128	uint32_t cfg_nvme_oas;
1129	uint32_t cfg_nvme_embed_cmd;
1130	uint32_t cfg_nvmet_mrq_post;
1131	uint32_t cfg_nvmet_mrq;
1132	uint32_t cfg_enable_nvmet;
1133	uint32_t cfg_nvme_enable_fb;
1134	uint32_t cfg_nvmet_fb_size;
1135	uint32_t cfg_total_seg_cnt;
1136	uint32_t cfg_sg_seg_cnt;
1137	uint32_t cfg_nvme_seg_cnt;
1138	uint32_t cfg_scsi_seg_cnt;
1139	uint32_t cfg_sg_dma_buf_size;
1140	uint32_t cfg_hba_queue_depth;
1141	uint32_t cfg_enable_hba_reset;
1142	uint32_t cfg_enable_hba_heartbeat;
1143	uint32_t cfg_fof;
1144	uint32_t cfg_EnableXLane;
1145	uint8_t cfg_oas_tgt_wwpn[8];
1146	uint8_t cfg_oas_vpt_wwpn[8];
1147	uint32_t cfg_oas_lun_state;
1148	#define OAS_LUN_ENABLE 1
1149	#define OAS_LUN_DISABLE 0
1150	uint32_t cfg_oas_lun_status;
1151	#define OAS_LUN_STATUS_EXISTS 0x01
1152	uint32_t cfg_oas_flags;
1153	#define OAS_FIND_ANY_VPORT 0x01
1154	#define OAS_FIND_ANY_TARGET 0x02
1155	#define OAS_LUN_VALID 0x04
1156	uint32_t cfg_oas_priority;
1157	uint32_t cfg_XLanePriority;
1158	uint32_t cfg_enable_bg;
1159	uint32_t cfg_prot_mask;
1160	uint32_t cfg_prot_guard;
1161	uint32_t cfg_hostmem_hgp;
1162	uint32_t cfg_log_verbose;
1163	uint32_t cfg_enable_fc4_type;
1164	#define LPFC_ENABLE_FCP 1
1165	#define LPFC_ENABLE_NVME 2
1166	#define LPFC_ENABLE_BOTH 3
1167	#if (IS_ENABLED(CONFIG_NVME_FC))
1168	#define LPFC_MAX_ENBL_FC4_TYPE LPFC_ENABLE_BOTH
1169	#define LPFC_DEF_ENBL_FC4_TYPE LPFC_ENABLE_BOTH
1170	#else
1171	#define LPFC_MAX_ENBL_FC4_TYPE LPFC_ENABLE_FCP
1172	#define LPFC_DEF_ENBL_FC4_TYPE LPFC_ENABLE_FCP
1173	#endif
1174	uint32_t cfg_sriov_nr_virtfn;
1175	uint32_t cfg_request_firmware_upgrade;
1176	uint32_t cfg_suppress_link_up;
1177	uint32_t cfg_rrq_xri_bitmap_sz;
1178	u32 cfg_fcp_wait_abts_rsp;
1179	uint32_t cfg_delay_discovery;
1180	uint32_t cfg_sli_mode;
1181	#define LPFC_INITIALIZE_LINK 0 /* do normal init_link mbox */
1182	#define LPFC_DELAY_INIT_LINK 1 /* layered driver hold off */
1183	#define LPFC_DELAY_INIT_LINK_INDEFINITELY 2 /* wait, manual intervention */
1184	uint32_t cfg_fdmi_on;
1185	#define LPFC_FDMI_NO_SUPPORT 0 /* FDMI not supported */
1186	#define LPFC_FDMI_SUPPORT 1 /* FDMI supported? */
1187	uint32_t cfg_enable_SmartSAN;
1188	uint32_t cfg_enable_mds_diags;
1189	uint32_t cfg_ras_fwlog_level;
1190	uint32_t cfg_ras_fwlog_buffsize;
1191	uint32_t cfg_ras_fwlog_func;
1192	uint32_t cfg_enable_bbcr; /* Enable BB Credit Recovery */
1193	uint32_t cfg_enable_dpp; /* Enable Direct Packet Push */
1194	uint32_t cfg_enable_pbde;
1195	uint32_t cfg_enable_mi;
1196	struct nvmet_fc_target_port *targetport;
1197	lpfc_vpd_t vpd; /* vital product data */
1198
1199	u32 cfg_max_vmid; /* maximum VMIDs allowed per port */
1200	u32 cfg_vmid_app_header;
1201	#define LPFC_VMID_APP_HEADER_DISABLE 0
1202	#define LPFC_VMID_APP_HEADER_ENABLE 1
1203	u32 cfg_vmid_priority_tagging;
1204	u32 cfg_vmid_inactivity_timeout; /* Time after which the VMID */
1205	/* deregisters from switch */
1206	struct pci_dev *pcidev;
1207	struct list_head work_list;
1208	uint32_t work_ha; /* Host Attention Bits for WT */
1209	uint32_t work_ha_mask; /* HA Bits owned by WT */
1210	uint32_t work_hs; /* HS stored in case of ERRAT */
1211	uint32_t work_status[2]; /* Extra status from SLIM */
1212
1213	wait_queue_head_t work_waitq;
1214	struct task_struct *worker_thread;
1215	unsigned long data_flags;
1216	uint32_t border_sge_num;
1217
1218	uint32_t hbq_in_use; /* HBQs in use flag */
1219	uint32_t hbq_count; /* Count of configured HBQs */
1220	struct hbq_s hbqs[LPFC_MAX_HBQS]; /* local copy of hbq indicies */
1221
1222	atomic_t fcp_qidx; /* next FCP WQ (RR Policy) */
1223	atomic_t nvme_qidx; /* next NVME WQ (RR Policy) */
1224
1225	phys_addr_t pci_bar0_map; /* Physical address for PCI BAR0 */
1226	phys_addr_t pci_bar1_map; /* Physical address for PCI BAR1 */
1227	phys_addr_t pci_bar2_map; /* Physical address for PCI BAR2 */
1228	void __iomem *slim_memmap_p; /* Kernel memory mapped address for
1229	PCI BAR0 */
1230	void __iomem *ctrl_regs_memmap_p;/* Kernel memory mapped address for
1231	PCI BAR2 */
1232
1233	void __iomem *pci_bar0_memmap_p; /* Kernel memory mapped address for
1234	PCI BAR0 with dual-ULP support */
1235	void __iomem *pci_bar2_memmap_p; /* Kernel memory mapped address for
1236	PCI BAR2 with dual-ULP support */
1237	void __iomem *pci_bar4_memmap_p; /* Kernel memory mapped address for
1238	PCI BAR4 with dual-ULP support */
1239	#define PCI_64BIT_BAR0 0
1240	#define PCI_64BIT_BAR2 2
1241	#define PCI_64BIT_BAR4 4
1242	void __iomem *MBslimaddr; /* virtual address for mbox cmds */
1243	void __iomem *HAregaddr; /* virtual address for host attn reg */
1244	void __iomem *CAregaddr; /* virtual address for chip attn reg */
1245	void __iomem *HSregaddr; /* virtual address for host status
1246	reg */
1247	void __iomem *HCregaddr; /* virtual address for host ctl reg */
1248
1249	struct lpfc_hgp __iomem *host_gp; /* Host side get/put pointers */
1250	struct lpfc_pgp *port_gp;
1251	uint32_t __iomem *hbq_put; /* Address in SLIM to HBQ put ptrs */
1252	uint32_t *hbq_get; /* Host mem address of HBQ get ptrs */
1253
1254	int brd_no; /* FC board number */
1255	char SerialNumber[32]; /* adapter Serial Number */
1256	char OptionROMVersion[32]; /* adapter BIOS / Fcode version */
1257	char BIOSVersion[16]; /* Boot BIOS version */
1258	char ModelDesc[256]; /* Model Description */
1259	char ModelName[80]; /* Model Name */
1260	char ProgramType[256]; /* Program Type */
1261	char Port[20]; /* Port No */
1262	uint8_t vpd_flag; /* VPD data flag */
1263
1264	#define VPD_MODEL_DESC 0x1 /* valid vpd model description */
1265	#define VPD_MODEL_NAME 0x2 /* valid vpd model name */
1266	#define VPD_PROGRAM_TYPE 0x4 /* valid vpd program type */
1267	#define VPD_PORT 0x8 /* valid vpd port data */
1268	#define VPD_MASK 0xf /* mask for any vpd data */
1269
1270
1271	struct timer_list fcp_poll_timer;
1272	struct timer_list eratt_poll;
1273	uint32_t eratt_poll_interval;
1274
1275	uint64_t bg_guard_err_cnt;
1276	uint64_t bg_apptag_err_cnt;
1277	uint64_t bg_reftag_err_cnt;
1278
1279	/* fastpath list. */
1280	spinlock_t scsi_buf_list_get_lock; /* SCSI buf alloc list lock */
1281	spinlock_t scsi_buf_list_put_lock; /* SCSI buf free list lock */
1282	struct list_head lpfc_scsi_buf_list_get;
1283	struct list_head lpfc_scsi_buf_list_put;
1284	uint32_t total_scsi_bufs;
1285	struct list_head lpfc_iocb_list;
1286	uint32_t total_iocbq_bufs;
1287	struct list_head active_rrq_list;
1288	spinlock_t hbalock;
1289	struct work_struct unblock_request_work; /* SCSI layer unblock IOs */
1290
1291	/* dma_mem_pools */
1292	struct dma_pool *lpfc_sg_dma_buf_pool;
1293	struct dma_pool *lpfc_mbuf_pool;
1294	struct dma_pool *lpfc_hrb_pool; /* header receive buffer pool */
1295	struct dma_pool *lpfc_drb_pool; /* data receive buffer pool */
1296	struct dma_pool *lpfc_nvmet_drb_pool; /* data receive buffer pool */
1297	struct dma_pool *lpfc_hbq_pool; /* SLI3 hbq buffer pool */
1298	struct dma_pool *lpfc_cmd_rsp_buf_pool;
1299	struct lpfc_dma_pool lpfc_mbuf_safety_pool;
1300
1301	mempool_t *mbox_mem_pool;
1302	mempool_t *nlp_mem_pool;
1303	mempool_t *rrq_pool;
1304	mempool_t *active_rrq_pool;
1305
1306	struct fc_host_statistics link_stats;
1307	enum lpfc_irq_chann_mode irq_chann_mode;
1308	enum intr_type_t intr_type;
1309	uint32_t intr_mode;
1310	#define LPFC_INTR_ERROR 0xFFFFFFFF
1311	struct list_head port_list;
1312	spinlock_t port_list_lock; /* lock for port_list mutations */
1313	struct lpfc_vport *pport; /* physical lpfc_vport pointer */
1314	uint16_t max_vpi; /* Maximum virtual nports */
1315	#define LPFC_MAX_VPI 0xFF /* Max number VPI supported 0 - 0xff */
1316	#define LPFC_MAX_VPORTS 0x100 /* Max vports per port, with pport */
1317	uint16_t max_vports; /*
1318	* For IOV HBAs max_vpi can change
1319	* after a reset. max_vports is max
1320	* number of vports present. This can
1321	* be greater than max_vpi.
1322	*/
1323	uint16_t vpi_base;
1324	uint16_t vfi_base;
1325	unsigned long *vpi_bmask; /* vpi allocation table */
1326	uint16_t *vpi_ids;
1327	uint16_t vpi_count;
1328	struct list_head lpfc_vpi_blk_list;
1329
1330	/* Data structure used by fabric iocb scheduler */
1331	struct list_head fabric_iocb_list;
1332	atomic_t fabric_iocb_count;
1333	struct timer_list fabric_block_timer;
1334	unsigned long bit_flags;
1335	atomic_t num_rsrc_err;
1336	unsigned long last_rsrc_error_time;
1337	unsigned long last_ramp_down_time;
1338	#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
1339	struct dentry *hba_debugfs_root;
1340	atomic_t debugfs_vport_count;
1341	struct dentry *debug_multixri_pools;
1342	struct dentry *debug_hbqinfo;
1343	struct dentry *debug_dumpHostSlim;
1344	struct dentry *debug_dumpHBASlim;
1345	struct dentry *debug_InjErrLBA; /* LBA to inject errors at */
1346	struct dentry *debug_InjErrNPortID; /* NPortID to inject errors at */
1347	struct dentry *debug_InjErrWWPN; /* WWPN to inject errors at */
1348	struct dentry *debug_writeGuard; /* inject write guard_tag errors */
1349	struct dentry *debug_writeApp; /* inject write app_tag errors */
1350	struct dentry *debug_writeRef; /* inject write ref_tag errors */
1351	struct dentry *debug_readGuard; /* inject read guard_tag errors */
1352	struct dentry *debug_readApp; /* inject read app_tag errors */
1353	struct dentry *debug_readRef; /* inject read ref_tag errors */
1354
1355	struct dentry *debug_nvmeio_trc;
1356	struct lpfc_debugfs_nvmeio_trc *nvmeio_trc;
1357	struct dentry *debug_hdwqinfo;
1358	#ifdef LPFC_HDWQ_LOCK_STAT
1359	struct dentry *debug_lockstat;
1360	#endif
1361	struct dentry *debug_cgn_buffer;
1362	struct dentry *debug_rx_monitor;
1363	struct dentry *debug_ras_log;
1364	atomic_t nvmeio_trc_cnt;
1365	uint32_t nvmeio_trc_size;
1366	uint32_t nvmeio_trc_output_idx;
1367
1368	/* T10 DIF error injection */
1369	uint32_t lpfc_injerr_wgrd_cnt;
1370	uint32_t lpfc_injerr_wapp_cnt;
1371	uint32_t lpfc_injerr_wref_cnt;
1372	uint32_t lpfc_injerr_rgrd_cnt;
1373	uint32_t lpfc_injerr_rapp_cnt;
1374	uint32_t lpfc_injerr_rref_cnt;
1375	uint32_t lpfc_injerr_nportid;
1376	struct lpfc_name lpfc_injerr_wwpn;
1377	sector_t lpfc_injerr_lba;
1378	#define LPFC_INJERR_LBA_OFF (sector_t)(-1)
1379
1380	struct dentry *debug_slow_ring_trc;
1381	struct lpfc_debugfs_trc *slow_ring_trc;
1382	atomic_t slow_ring_trc_cnt;
1383	/* iDiag debugfs sub-directory */
1384	struct dentry *idiag_root;
1385	struct dentry *idiag_pci_cfg;
1386	struct dentry *idiag_bar_acc;
1387	struct dentry *idiag_que_info;
1388	struct dentry *idiag_que_acc;
1389	struct dentry *idiag_drb_acc;
1390	struct dentry *idiag_ctl_acc;
1391	struct dentry *idiag_mbx_acc;
1392	struct dentry *idiag_ext_acc;
1393	uint8_t lpfc_idiag_last_eq;
1394	#endif
1395	uint16_t nvmeio_trc_on;
1396
1397	/* Used for deferred freeing of ELS data buffers */
1398	struct list_head elsbuf;
1399	int elsbuf_cnt;
1400	int elsbuf_prev_cnt;
1401
1402	uint8_t temp_sensor_support;
1403	/* Fields used for heart beat. */
1404	unsigned long last_completion_time;
1405	unsigned long skipped_hb;
1406	struct timer_list hb_tmofunc;
1407	struct timer_list rrq_tmr;
1408	enum hba_temp_state over_temp_state;
1409	/*
1410	* Following bit will be set for all buffer tags which are not
1411	* associated with any HBQ.
1412	*/
1413	#define QUE_BUFTAG_BIT (1<<31)
1414	uint32_t buffer_tag_count;
1415
1416	/* Maximum number of events that can be outstanding at any time*/
1417	#define LPFC_MAX_EVT_COUNT 512
1418	atomic_t fast_event_count;
1419	uint32_t fcoe_eventtag;
1420	uint32_t fcoe_eventtag_at_fcf_scan;
1421	uint32_t fcoe_cvl_eventtag;
1422	uint32_t fcoe_cvl_eventtag_attn;
1423	struct lpfc_fcf fcf;
1424	uint8_t fc_map[3];
1425	uint8_t valid_vlan;
1426	uint16_t vlan_id;
1427	struct list_head fcf_conn_rec_list;
1428
1429	bool defer_flogi_acc_flag;
1430	uint16_t defer_flogi_acc_rx_id;
1431	uint16_t defer_flogi_acc_ox_id;
1432
1433	spinlock_t ct_ev_lock; /* synchronize access to ct_ev_waiters */
1434	struct list_head ct_ev_waiters;
1435	struct unsol_rcv_ct_ctx ct_ctx[LPFC_CT_CTX_MAX];
1436	uint32_t ctx_idx;
1437	struct timer_list inactive_vmid_poll;
1438
1439	/* RAS Support */
1440	spinlock_t ras_fwlog_lock; /* do not take while holding another lock */
1441	struct lpfc_ras_fwlog ras_fwlog;
1442
1443	uint32_t iocb_cnt;
1444	uint32_t iocb_max;
1445	atomic_t sdev_cnt;
1446	spinlock_t devicelock; /* lock for luns list */
1447	mempool_t *device_data_mem_pool;
1448	struct list_head luns;
1449	#define LPFC_TRANSGRESSION_HIGH_TEMPERATURE 0x0080
1450	#define LPFC_TRANSGRESSION_LOW_TEMPERATURE 0x0040
1451	#define LPFC_TRANSGRESSION_HIGH_VOLTAGE 0x0020
1452	#define LPFC_TRANSGRESSION_LOW_VOLTAGE 0x0010
1453	#define LPFC_TRANSGRESSION_HIGH_TXBIAS 0x0008
1454	#define LPFC_TRANSGRESSION_LOW_TXBIAS 0x0004
1455	#define LPFC_TRANSGRESSION_HIGH_TXPOWER 0x0002
1456	#define LPFC_TRANSGRESSION_LOW_TXPOWER 0x0001
1457	#define LPFC_TRANSGRESSION_HIGH_RXPOWER 0x8000
1458	#define LPFC_TRANSGRESSION_LOW_RXPOWER 0x4000
1459	uint16_t sfp_alarm;
1460	uint16_t sfp_warning;
1461
1462	#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
1463	uint16_t hdwqstat_on;
1464	#define LPFC_CHECK_OFF 0
1465	#define LPFC_CHECK_NVME_IO 1
1466	#define LPFC_CHECK_NVMET_IO 2
1467	#define LPFC_CHECK_SCSI_IO 4
1468	uint16_t ktime_on;
1469	uint64_t ktime_data_samples;
1470	uint64_t ktime_status_samples;
1471	uint64_t ktime_last_cmd;
1472	uint64_t ktime_seg1_total;
1473	uint64_t ktime_seg1_min;
1474	uint64_t ktime_seg1_max;
1475	uint64_t ktime_seg2_total;
1476	uint64_t ktime_seg2_min;
1477	uint64_t ktime_seg2_max;
1478	uint64_t ktime_seg3_total;
1479	uint64_t ktime_seg3_min;
1480	uint64_t ktime_seg3_max;
1481	uint64_t ktime_seg4_total;
1482	uint64_t ktime_seg4_min;
1483	uint64_t ktime_seg4_max;
1484	uint64_t ktime_seg5_total;
1485	uint64_t ktime_seg5_min;
1486	uint64_t ktime_seg5_max;
1487	uint64_t ktime_seg6_total;
1488	uint64_t ktime_seg6_min;
1489	uint64_t ktime_seg6_max;
1490	uint64_t ktime_seg7_total;
1491	uint64_t ktime_seg7_min;
1492	uint64_t ktime_seg7_max;
1493	uint64_t ktime_seg8_total;
1494	uint64_t ktime_seg8_min;
1495	uint64_t ktime_seg8_max;
1496	uint64_t ktime_seg9_total;
1497	uint64_t ktime_seg9_min;
1498	uint64_t ktime_seg9_max;
1499	uint64_t ktime_seg10_total;
1500	uint64_t ktime_seg10_min;
1501	uint64_t ktime_seg10_max;
1502	#endif
1503	/* CMF objects */
1504	struct lpfc_cgn_stat __percpu *cmf_stat;
1505	uint32_t cmf_interval_rate; /* timer interval limit in ms */
1506	uint32_t cmf_timer_cnt;
1507	#define LPFC_CMF_INTERVAL 90
1508	uint64_t cmf_link_byte_count;
1509	uint64_t cmf_max_line_rate;
1510	uint64_t cmf_max_bytes_per_interval;
1511	uint64_t cmf_last_sync_bw;
1512	#define LPFC_CMF_BLK_SIZE 512
1513	struct hrtimer cmf_timer;
1514	struct hrtimer cmf_stats_timer; /* 1 minute stats timer */
1515	atomic_t cmf_bw_wait;
1516	atomic_t cmf_busy;
1517	atomic_t cmf_stop_io; /* To block request and stop IO's */
1518	uint32_t cmf_active_mode;
1519	uint32_t cmf_info_per_interval;
1520	#define LPFC_MAX_CMF_INFO 32
1521	struct timespec64 cmf_latency; /* Interval congestion timestamp */
1522	uint32_t cmf_last_ts; /* Interval congestion time (ms) */
1523	uint32_t cmf_active_info;
1524
1525	/* Signal / FPIN handling for Congestion Mgmt */
1526	u8 cgn_reg_fpin; /* Negotiated value from RDF */
1527	u8 cgn_init_reg_fpin; /* Initial value from READ_CONFIG */
1528	#define LPFC_CGN_FPIN_NONE 0x0
1529	#define LPFC_CGN_FPIN_WARN 0x1
1530	#define LPFC_CGN_FPIN_ALARM 0x2
1531	#define LPFC_CGN_FPIN_BOTH (LPFC_CGN_FPIN_WARN | LPFC_CGN_FPIN_ALARM)
1532
1533	u8 cgn_reg_signal; /* Negotiated value from EDC */
1534	u8 cgn_init_reg_signal; /* Initial value from READ_CONFIG */
1535	/* cgn_reg_signal and cgn_init_reg_signal use
1536	* enum fc_edc_cg_signal_cap_types
1537	*/
1538	u16 cgn_fpin_frequency; /* In units of msecs */
1539	#define LPFC_FPIN_INIT_FREQ 0xffff
1540	u32 cgn_sig_freq;
1541	u32 cgn_acqe_cnt;
1542
1543	/* RX monitor handling for CMF */
1544	struct lpfc_rx_info_monitor *rx_monitor;
1545	atomic_t rx_max_read_cnt; /* Maximum read bytes */
1546	uint64_t rx_block_cnt;
1547
1548	/* Congestion parameters from flash */
1549	struct lpfc_cgn_param cgn_p;
1550
1551	/* Statistics counter for ACQE cgn alarms and warnings */
1552	struct lpfc_cgn_acqe_stat cgn_acqe_stat;
1553
1554	/* Congestion buffer information */
1555	struct lpfc_dmabuf *cgn_i; /* Congestion Info buffer */
1556	atomic_t cgn_fabric_warn_cnt; /* Total warning cgn events for info */
1557	atomic_t cgn_fabric_alarm_cnt; /* Total alarm cgn events for info */
1558	atomic_t cgn_sync_warn_cnt; /* Total warning events for SYNC wqe */
1559	atomic_t cgn_sync_alarm_cnt; /* Total alarm events for SYNC wqe */
1560	atomic_t cgn_driver_evt_cnt; /* Total driver cgn events for fmw */
1561	atomic_t cgn_latency_evt_cnt;
1562	atomic64_t cgn_latency_evt; /* Avg latency per minute */
1563	unsigned long cgn_evt_timestamp;
1564	#define LPFC_CGN_TIMER_TO_MIN 60000 /* ms in a minute */
1565	uint32_t cgn_evt_minute;
1566	#define LPFC_SEC_MIN 60UL
1567	#define LPFC_MIN_HOUR 60
1568	#define LPFC_HOUR_DAY 24
1569	#define LPFC_MIN_DAY (LPFC_MIN_HOUR * LPFC_HOUR_DAY)
1570
1571	struct hlist_node cpuhp; /* used for cpuhp per hba callback */
1572	struct timer_list cpuhp_poll_timer;
1573	struct list_head poll_list; /* slowpath eq polling list */
1574	#define LPFC_POLL_HB 1 /* slowpath heartbeat */
1575
1576	char os_host_name[MAXHOSTNAMELEN];
1577
1578	/* LD Signaling */
1579	u32 degrade_activate_threshold;
1580	u32 degrade_deactivate_threshold;
1581	u32 fec_degrade_interval;
1582
1583	atomic_t dbg_log_idx;
1584	atomic_t dbg_log_cnt;
1585	atomic_t dbg_log_dmping;
1586	struct dbg_log_ent dbg_log[DBG_LOG_SZ];
1587	};
1588
1589	#define LPFC_MAX_RXMONITOR_ENTRY 800
1590	#define LPFC_MAX_RXMONITOR_DUMP 32
1591	struct rx_info_entry {
1592	uint64_t cmf_bytes; /* Total no of read bytes for CMF_SYNC_WQE */
1593	uint64_t total_bytes; /* Total no of read bytes requested */
1594	uint64_t rcv_bytes; /* Total no of read bytes completed */
1595	uint64_t avg_io_size;
1596	uint64_t avg_io_latency;/* Average io latency in microseconds */
1597	uint64_t max_read_cnt; /* Maximum read bytes */
1598	uint64_t max_bytes_per_interval;
1599	uint32_t cmf_busy;
1600	uint32_t cmf_info; /* CMF_SYNC_WQE info */
1601	uint32_t io_cnt;
1602	uint32_t timer_utilization;
1603	uint32_t timer_interval;
1604	};
1605
1606	struct lpfc_rx_info_monitor {
1607	struct rx_info_entry *ring; /* info organized in a circular buffer */
1608	u32 head_idx, tail_idx; /* index to head/tail of ring */
1609	spinlock_t lock; /* spinlock for ring */
1610	u32 entries; /* storing number entries/size of ring */
1611	};
1612
1613	static inline struct Scsi_Host *
1614	lpfc_shost_from_vport(struct lpfc_vport *vport)
1615	{
1616	return container_of((void *) vport, struct Scsi_Host, hostdata[0]);
1617	}
1618
1619	static inline void
1620	lpfc_set_loopback_flag(struct lpfc_hba *phba)
1621	{
1622	if (phba->cfg_topology == FLAGS_LOCAL_LB)
1623	phba->link_flag |= LS_LOOPBACK_MODE;
1624	else
1625	phba->link_flag &= ~LS_LOOPBACK_MODE;
1626	}
1627
1628	static inline int
1629	lpfc_is_link_up(struct lpfc_hba *phba)
1630	{
1631	return phba->link_state == LPFC_LINK_UP ||
1632	phba->link_state == LPFC_CLEAR_LA ||
1633	phba->link_state == LPFC_HBA_READY;
1634	}
1635
1636	static inline void
1637	lpfc_worker_wake_up(struct lpfc_hba *phba)
1638	{
1639	/* Set the lpfc data pending flag */
1640	set_bit(LPFC_DATA_READY, addr: &phba->data_flags);
1641
1642	/* Wake up worker thread */
1643	wake_up(&phba->work_waitq);
1644	return;
1645	}
1646
1647	static inline int
1648	lpfc_readl(void __iomem *addr, uint32_t *data)
1649	{
1650	uint32_t temp;
1651	temp = readl(addr);
1652	if (temp == 0xffffffff)
1653	return -EIO;
1654	*data = temp;
1655	return 0;
1656	}
1657
1658	static inline int
1659	lpfc_sli_read_hs(struct lpfc_hba *phba)
1660	{
1661	/*
1662	* There was a link/board error. Read the status register to retrieve
1663	* the error event and process it.
1664	*/
1665	phba->sli.slistat.err_attn_event++;
1666
1667	/* Save status info and check for unplug error */
1668	if (lpfc_readl(addr: phba->HSregaddr, data: &phba->work_hs) ||
1669	lpfc_readl(addr: phba->MBslimaddr + 0xa8, data: &phba->work_status[0]) ||
1670	lpfc_readl(addr: phba->MBslimaddr + 0xac, data: &phba->work_status[1])) {
1671	return -EIO;
1672	}
1673
1674	/* Clear chip Host Attention error bit */
1675	writel(HA_ERATT, addr: phba->HAregaddr);
1676	readl(addr: phba->HAregaddr); /* flush */
1677	phba->pport->stopped = 1;
1678
1679	return 0;
1680	}
1681
1682	static inline struct lpfc_sli_ring *
1683	lpfc_phba_elsring(struct lpfc_hba *phba)
1684	{
1685	/* Return NULL if sli_rev has become invalid due to bad fw */
1686	if (phba->sli_rev != LPFC_SLI_REV4 &&
1687	phba->sli_rev != LPFC_SLI_REV3 &&
1688	phba->sli_rev != LPFC_SLI_REV2)
1689	return NULL;
1690
1691	if (phba->sli_rev == LPFC_SLI_REV4) {
1692	if (phba->sli4_hba.els_wq)
1693	return phba->sli4_hba.els_wq->pring;
1694	else
1695	return NULL;
1696	}
1697	return &phba->sli.sli3_ring[LPFC_ELS_RING];
1698	}
1699
1700	/**
1701	* lpfc_next_online_cpu - Finds next online CPU on cpumask
1702	* @mask: Pointer to phba's cpumask member.
1703	* @start: starting cpu index
1704	*
1705	* Note: If no valid cpu found, then nr_cpu_ids is returned.
1706	*
1707	**/
1708	static inline unsigned int
1709	lpfc_next_online_cpu(const struct cpumask *mask, unsigned int start)
1710	{
1711	unsigned int cpu_it;
1712
1713	for_each_cpu_wrap(cpu_it, mask, start) {
1714	if (cpu_online(cpu: cpu_it))
1715	break;
1716	}
1717
1718	return cpu_it;
1719	}
1720	/**
1721	* lpfc_next_present_cpu - Finds next present CPU after n
1722	* @n: the cpu prior to search
1723	*
1724	* Note: If no next present cpu, then fallback to first present cpu.
1725	*
1726	**/
1727	static inline unsigned int lpfc_next_present_cpu(int n)
1728	{
1729	unsigned int cpu;
1730
1731	cpu = cpumask_next(n, cpu_present_mask);
1732
1733	if (cpu >= nr_cpu_ids)
1734	cpu = cpumask_first(cpu_present_mask);
1735
1736	return cpu;
1737	}
1738
1739	/**
1740	* lpfc_sli4_mod_hba_eq_delay - update EQ delay
1741	* @phba: Pointer to HBA context object.
1742	* @q: The Event Queue to update.
1743	* @delay: The delay value (in us) to be written.
1744	*
1745	**/
1746	static inline void
1747	lpfc_sli4_mod_hba_eq_delay(struct lpfc_hba *phba, struct lpfc_queue *eq,
1748	u32 delay)
1749	{
1750	struct lpfc_register reg_data;
1751
1752	reg_data.word0 = 0;
1753	bf_set(lpfc_sliport_eqdelay_id, &reg_data, eq->queue_id);
1754	bf_set(lpfc_sliport_eqdelay_delay, &reg_data, delay);
1755	writel(val: reg_data.word0, addr: phba->sli4_hba.u.if_type2.EQDregaddr);
1756	eq->q_mode = delay;
1757	}
1758
1759
1760	/*
1761	* Macro that declares tables and a routine to perform enum type to
1762	* ascii string lookup.
1763	*
1764	* Defines a <key,value> table for an enum. Uses xxx_INIT defines for
1765	* the enum to populate the table. Macro defines a routine (named
1766	* by caller) that will search all elements of the table for the key
1767	* and return the name string if found or "Unrecognized" if not found.
1768	*/
1769	#define DECLARE_ENUM2STR_LOOKUP(routine, enum_name, enum_init) \
1770	static struct { \
1771	enum enum_name value; \
1772	char *name; \
1773	} fc_##enum_name##_e2str_names[] = enum_init; \
1774	static const char *routine(enum enum_name table_key) \
1775	{ \
1776	int i; \
1777	char *name = "Unrecognized"; \
1778	\
1779	for (i = 0; i < ARRAY_SIZE(fc_##enum_name##_e2str_names); i++) {\
1780	if (fc_##enum_name##_e2str_names[i].value == table_key) {\
1781	name = fc_##enum_name##_e2str_names[i].name; \
1782	break; \
1783	} \
1784	} \
1785	return name; \
1786	}
1787
1788	/**
1789	* lpfc_is_vmid_enabled - returns if VMID is enabled for either switch types
1790	* @phba: Pointer to HBA context object.
1791	*
1792	* Relationship between the enable, target support and if vmid tag is required
1793	* for the particular combination
1794	* ---------------------------------------------------
1795	* Switch Enable Flag Target Support VMID Needed
1796	* ---------------------------------------------------
1797	* App Id 0 NA N
1798	* App Id 1 0 N
1799	* App Id 1 1 Y
1800	* Pr Tag 0 NA N
1801	* Pr Tag 1 0 N
1802	* Pr Tag 1 1 Y
1803	* Pr Tag 2 * Y
1804	---------------------------------------------------
1805	*
1806	**/
1807	static inline int lpfc_is_vmid_enabled(struct lpfc_hba *phba)
1808	{
1809	return phba->cfg_vmid_app_header || phba->cfg_vmid_priority_tagging;
1810	}
1811
1812	static inline
1813	u8 get_job_ulpstatus(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1814	{
1815	if (phba->sli_rev == LPFC_SLI_REV4)
1816	return bf_get(lpfc_wcqe_c_status, &iocbq->wcqe_cmpl);
1817	else
1818	return iocbq->iocb.ulpStatus;
1819	}
1820
1821	static inline
1822	u32 get_job_word4(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1823	{
1824	if (phba->sli_rev == LPFC_SLI_REV4)
1825	return iocbq->wcqe_cmpl.parameter;
1826	else
1827	return iocbq->iocb.un.ulpWord[4];
1828	}
1829
1830	static inline
1831	u8 get_job_cmnd(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1832	{
1833	if (phba->sli_rev == LPFC_SLI_REV4)
1834	return bf_get(wqe_cmnd, &iocbq->wqe.generic.wqe_com);
1835	else
1836	return iocbq->iocb.ulpCommand;
1837	}
1838
1839	static inline
1840	u16 get_job_ulpcontext(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1841	{
1842	if (phba->sli_rev == LPFC_SLI_REV4)
1843	return bf_get(wqe_ctxt_tag, &iocbq->wqe.generic.wqe_com);
1844	else
1845	return iocbq->iocb.ulpContext;
1846	}
1847
1848	static inline
1849	u16 get_job_rcvoxid(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1850	{
1851	if (phba->sli_rev == LPFC_SLI_REV4)
1852	return bf_get(wqe_rcvoxid, &iocbq->wqe.generic.wqe_com);
1853	else
1854	return iocbq->iocb.unsli3.rcvsli3.ox_id;
1855	}
1856
1857	static inline
1858	u32 get_job_data_placed(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1859	{
1860	if (phba->sli_rev == LPFC_SLI_REV4)
1861	return iocbq->wcqe_cmpl.total_data_placed;
1862	else
1863	return iocbq->iocb.un.genreq64.bdl.bdeSize;
1864	}
1865
1866	static inline
1867	u32 get_job_abtsiotag(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1868	{
1869	if (phba->sli_rev == LPFC_SLI_REV4)
1870	return iocbq->wqe.abort_cmd.wqe_com.abort_tag;
1871	else
1872	return iocbq->iocb.un.acxri.abortIoTag;
1873	}
1874
1875	static inline
1876	u32 get_job_els_rsp64_did(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1877	{
1878	if (phba->sli_rev == LPFC_SLI_REV4)
1879	return bf_get(wqe_els_did, &iocbq->wqe.els_req.wqe_dest);
1880	else
1881	return iocbq->iocb.un.elsreq64.remoteID;
1882	}
1883