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fs: use kmem_cache_zalloc instead
[pv_ops_mirror.git] / drivers / scsi / lpfc / lpfc.h
blobba3ecab9baf3857cca02ab670d059ad5ad877b6c
1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2007 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. *
6 * www.emulex.com *
7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
8 * *
9 * This program is free software; you can redistribute it and/or *
10 * modify it under the terms of version 2 of the GNU General *
11 * Public License as published by the Free Software Foundation. *
12 * This program is distributed in the hope that it will be useful. *
13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
17 * TO BE LEGALLY INVALID. See the GNU General Public License for *
18 * more details, a copy of which can be found in the file COPYING *
19 * included with this package. *
20 *******************************************************************/
21
22 #include <scsi/scsi_host.h>
23
24 struct lpfc_sli2_slim;
25
26 #define LPFC_MAX_TARGET 256 /* max number of targets supported */
27 #define LPFC_MAX_DISC_THREADS 64 /* max outstanding discovery els
28 requests */
29 #define LPFC_MAX_NS_RETRY 3 /* Number of retry attempts to contact
30 the NameServer before giving up. */
31 #define LPFC_CMD_PER_LUN 3 /* max outstanding cmds per lun */
32 #define LPFC_SG_SEG_CNT 64 /* sg element count per scsi cmnd */
33 #define LPFC_IOCB_LIST_CNT 2250 /* list of IOCBs for fast-path usage. */
34 #define LPFC_Q_RAMP_UP_INTERVAL 120 /* lun q_depth ramp up interval */
35
36 /*
37 * Following time intervals are used of adjusting SCSI device
38 * queue depths when there are driver resource error or Firmware
39 * resource error.
40 */
41 #define QUEUE_RAMP_DOWN_INTERVAL (1 * HZ) /* 1 Second */
42 #define QUEUE_RAMP_UP_INTERVAL (300 * HZ) /* 5 minutes */
43
44 /* Number of exchanges reserved for discovery to complete */
45 #define LPFC_DISC_IOCB_BUFF_COUNT 20
46
47 #define LPFC_HB_MBOX_INTERVAL 5 /* Heart beat interval in seconds. */
48 #define LPFC_HB_MBOX_TIMEOUT 30 /* Heart beat timeout in seconds. */
49
50 /* Define macros for 64 bit support */
51 #define putPaddrLow(addr) ((uint32_t) (0xffffffff & (u64)(addr)))
52 #define putPaddrHigh(addr) ((uint32_t) (0xffffffff & (((u64)(addr))>>32)))
53 #define getPaddr(high, low) ((dma_addr_t)( \
54 (( (u64)(high)<<16 ) << 16)|( (u64)(low))))
55 /* Provide maximum configuration definitions. */
56 #define LPFC_DRVR_TIMEOUT 16 /* driver iocb timeout value in sec */
57 #define FC_MAX_ADPTMSG 64
58
59 #define MAX_HBAEVT 32
60
61 enum lpfc_polling_flags {
62 ENABLE_FCP_RING_POLLING = 0x1,
63 DISABLE_FCP_RING_INT = 0x2
64 };
65
66 /* Provide DMA memory definitions the driver uses per port instance. */
67 struct lpfc_dmabuf {
68 struct list_head list;
69 void *virt; /* virtual address ptr */
70 dma_addr_t phys; /* mapped address */
71 };
72
73 struct lpfc_dma_pool {
74 struct lpfc_dmabuf *elements;
75 uint32_t max_count;
76 uint32_t current_count;
77 };
78
79 struct hbq_dmabuf {
80 struct lpfc_dmabuf dbuf;
81 uint32_t size;
82 uint32_t tag;
83 };
84
85 /* Priority bit. Set value to exceed low water mark in lpfc_mem. */
86 #define MEM_PRI 0x100
87
88
89 /****************************************************************************/
90 /* Device VPD save area */
91 /****************************************************************************/
92 typedef struct lpfc_vpd {
93 uint32_t status; /* vpd status value */
94 uint32_t length; /* number of bytes actually returned */
95 struct {
96 uint32_t rsvd1; /* Revision numbers */
97 uint32_t biuRev;
98 uint32_t smRev;
99 uint32_t smFwRev;
100 uint32_t endecRev;
101 uint16_t rBit;
102 uint8_t fcphHigh;
103 uint8_t fcphLow;
104 uint8_t feaLevelHigh;
105 uint8_t feaLevelLow;
106 uint32_t postKernRev;
107 uint32_t opFwRev;
108 uint8_t opFwName[16];
109 uint32_t sli1FwRev;
110 uint8_t sli1FwName[16];
111 uint32_t sli2FwRev;
112 uint8_t sli2FwName[16];
113 } rev;
114 struct {
115 #ifdef __BIG_ENDIAN_BITFIELD
116 uint32_t rsvd2 :24; /* Reserved */
117 uint32_t cmv : 1; /* Configure Max VPIs */
118 uint32_t ccrp : 1; /* Config Command Ring Polling */
119 uint32_t csah : 1; /* Configure Synchronous Abort Handling */
120 uint32_t chbs : 1; /* Cofigure Host Backing store */
121 uint32_t cinb : 1; /* Enable Interrupt Notification Block */
122 uint32_t cerbm : 1; /* Configure Enhanced Receive Buf Mgmt */
123 uint32_t cmx : 1; /* Configure Max XRIs */
124 uint32_t cmr : 1; /* Configure Max RPIs */
125 #else /* __LITTLE_ENDIAN */
126 uint32_t cmr : 1; /* Configure Max RPIs */
127 uint32_t cmx : 1; /* Configure Max XRIs */
128 uint32_t cerbm : 1; /* Configure Enhanced Receive Buf Mgmt */
129 uint32_t cinb : 1; /* Enable Interrupt Notification Block */
130 uint32_t chbs : 1; /* Cofigure Host Backing store */
131 uint32_t csah : 1; /* Configure Synchronous Abort Handling */
132 uint32_t ccrp : 1; /* Config Command Ring Polling */
133 uint32_t cmv : 1; /* Configure Max VPIs */
134 uint32_t rsvd2 :24; /* Reserved */
135 #endif
136 } sli3Feat;
137 } lpfc_vpd_t;
138
139 struct lpfc_scsi_buf;
140
141
142 /*
143 * lpfc stat counters
144 */
145 struct lpfc_stats {
146 /* Statistics for ELS commands */
147 uint32_t elsLogiCol;
148 uint32_t elsRetryExceeded;
149 uint32_t elsXmitRetry;
150 uint32_t elsDelayRetry;
151 uint32_t elsRcvDrop;
152 uint32_t elsRcvFrame;
153 uint32_t elsRcvRSCN;
154 uint32_t elsRcvRNID;
155 uint32_t elsRcvFARP;
156 uint32_t elsRcvFARPR;
157 uint32_t elsRcvFLOGI;
158 uint32_t elsRcvPLOGI;
159 uint32_t elsRcvADISC;
160 uint32_t elsRcvPDISC;
161 uint32_t elsRcvFAN;
162 uint32_t elsRcvLOGO;
163 uint32_t elsRcvPRLO;
164 uint32_t elsRcvPRLI;
165 uint32_t elsRcvLIRR;
166 uint32_t elsRcvRPS;
167 uint32_t elsRcvRPL;
168 uint32_t elsXmitFLOGI;
169 uint32_t elsXmitFDISC;
170 uint32_t elsXmitPLOGI;
171 uint32_t elsXmitPRLI;
172 uint32_t elsXmitADISC;
173 uint32_t elsXmitLOGO;
174 uint32_t elsXmitSCR;
175 uint32_t elsXmitRNID;
176 uint32_t elsXmitFARP;
177 uint32_t elsXmitFARPR;
178 uint32_t elsXmitACC;
179 uint32_t elsXmitLSRJT;
180
181 uint32_t frameRcvBcast;
182 uint32_t frameRcvMulti;
183 uint32_t strayXmitCmpl;
184 uint32_t frameXmitDelay;
185 uint32_t xriCmdCmpl;
186 uint32_t xriStatErr;
187 uint32_t LinkUp;
188 uint32_t LinkDown;
189 uint32_t LinkMultiEvent;
190 uint32_t NoRcvBuf;
191 uint32_t fcpCmd;
192 uint32_t fcpCmpl;
193 uint32_t fcpRspErr;
194 uint32_t fcpRemoteStop;
195 uint32_t fcpPortRjt;
196 uint32_t fcpPortBusy;
197 uint32_t fcpError;
198 uint32_t fcpLocalErr;
199 };
200
201 enum sysfs_mbox_state {
202 SMBOX_IDLE,
203 SMBOX_WRITING,
204 SMBOX_READING
205 };
206
207 struct lpfc_sysfs_mbox {
208 enum sysfs_mbox_state state;
209 size_t offset;
210 struct lpfcMboxq * mbox;
211 };
212
213 struct lpfc_hba;
214
215
216 enum discovery_state {
217 LPFC_VPORT_UNKNOWN = 0, /* vport state is unknown */
218 LPFC_VPORT_FAILED = 1, /* vport has failed */
219 LPFC_LOCAL_CFG_LINK = 6, /* local NPORT Id configured */
220 LPFC_FLOGI = 7, /* FLOGI sent to Fabric */
221 LPFC_FDISC = 8, /* FDISC sent for vport */
222 LPFC_FABRIC_CFG_LINK = 9, /* Fabric assigned NPORT Id
223 * configured */
224 LPFC_NS_REG = 10, /* Register with NameServer */
225 LPFC_NS_QRY = 11, /* Query NameServer for NPort ID list */
226 LPFC_BUILD_DISC_LIST = 12, /* Build ADISC and PLOGI lists for
227 * device authentication / discovery */
228 LPFC_DISC_AUTH = 13, /* Processing ADISC list */
229 LPFC_VPORT_READY = 32,
230 };
231
232 enum hba_state {
233 LPFC_LINK_UNKNOWN = 0, /* HBA state is unknown */
234 LPFC_WARM_START = 1, /* HBA state after selective reset */
235 LPFC_INIT_START = 2, /* Initial state after board reset */
236 LPFC_INIT_MBX_CMDS = 3, /* Initialize HBA with mbox commands */
237 LPFC_LINK_DOWN = 4, /* HBA initialized, link is down */
238 LPFC_LINK_UP = 5, /* Link is up - issue READ_LA */
239 LPFC_CLEAR_LA = 6, /* authentication cmplt - issue
240 * CLEAR_LA */
241 LPFC_HBA_READY = 32,
242 LPFC_HBA_ERROR = -1
243 };
244
245 struct lpfc_vport {
246 struct list_head listentry;
247 struct lpfc_hba *phba;
248 uint8_t port_type;
249 #define LPFC_PHYSICAL_PORT 1
250 #define LPFC_NPIV_PORT 2
251 #define LPFC_FABRIC_PORT 3
252 enum discovery_state port_state;
253
254 uint16_t vpi;
255
256 uint32_t fc_flag; /* FC flags */
257 /* Several of these flags are HBA centric and should be moved to
258 * phba->link_flag (e.g. FC_PTP, FC_PUBLIC_LOOP)
259 */
260 #define FC_PT2PT 0x1 /* pt2pt with no fabric */
261 #define FC_PT2PT_PLOGI 0x2 /* pt2pt initiate PLOGI */
262 #define FC_DISC_TMO 0x4 /* Discovery timer running */
263 #define FC_PUBLIC_LOOP 0x8 /* Public loop */
264 #define FC_LBIT 0x10 /* LOGIN bit in loopinit set */
265 #define FC_RSCN_MODE 0x20 /* RSCN cmd rcv'ed */
266 #define FC_NLP_MORE 0x40 /* More node to process in node tbl */
267 #define FC_OFFLINE_MODE 0x80 /* Interface is offline for diag */
268 #define FC_FABRIC 0x100 /* We are fabric attached */
269 #define FC_ESTABLISH_LINK 0x200 /* Reestablish Link */
270 #define FC_RSCN_DISCOVERY 0x400 /* Auth all devices after RSCN */
271 #define FC_SCSI_SCAN_TMO 0x4000 /* scsi scan timer running */
272 #define FC_ABORT_DISCOVERY 0x8000 /* we want to abort discovery */
273 #define FC_NDISC_ACTIVE 0x10000 /* NPort discovery active */
274 #define FC_BYPASSED_MODE 0x20000 /* NPort is in bypassed mode */
275 #define FC_RFF_NOT_SUPPORTED 0x40000 /* RFF_ID was rejected by switch */
276 #define FC_VPORT_NEEDS_REG_VPI 0x80000 /* Needs to have its vpi registered */
277 #define FC_RSCN_DEFERRED 0x100000 /* A deferred RSCN being processed */
278
279 struct list_head fc_nodes;
280
281 /* Keep counters for the number of entries in each list. */
282 uint16_t fc_plogi_cnt;
283 uint16_t fc_adisc_cnt;
284 uint16_t fc_reglogin_cnt;
285 uint16_t fc_prli_cnt;
286 uint16_t fc_unmap_cnt;
287 uint16_t fc_map_cnt;
288 uint16_t fc_npr_cnt;
289 uint16_t fc_unused_cnt;
290 struct serv_parm fc_sparam; /* buffer for our service parameters */
291
292 uint32_t fc_myDID; /* fibre channel S_ID */
293 uint32_t fc_prevDID; /* previous fibre channel S_ID */
294
295 int32_t stopped; /* HBA has not been restarted since last ERATT */
296 uint8_t fc_linkspeed; /* Link speed after last READ_LA */
297
298 uint32_t num_disc_nodes; /*in addition to hba_state */
299
300 uint32_t fc_nlp_cnt; /* outstanding NODELIST requests */
301 uint32_t fc_rscn_id_cnt; /* count of RSCNs payloads in list */
302 struct lpfc_dmabuf *fc_rscn_id_list[FC_MAX_HOLD_RSCN];
303 struct lpfc_name fc_nodename; /* fc nodename */
304 struct lpfc_name fc_portname; /* fc portname */
305
306 struct lpfc_work_evt disc_timeout_evt;
307
308 struct timer_list fc_disctmo; /* Discovery rescue timer */
309 uint8_t fc_ns_retry; /* retries for fabric nameserver */
310 uint32_t fc_prli_sent; /* cntr for outstanding PRLIs */
311
312 spinlock_t work_port_lock;
313 uint32_t work_port_events; /* Timeout to be handled */
314 #define WORKER_DISC_TMO 0x1 /* vport: Discovery timeout */
315 #define WORKER_ELS_TMO 0x2 /* vport: ELS timeout */
316 #define WORKER_FDMI_TMO 0x4 /* vport: FDMI timeout */
317
318 #define WORKER_MBOX_TMO 0x100 /* hba: MBOX timeout */
319 #define WORKER_HB_TMO 0x200 /* hba: Heart beat timeout */
320 #define WORKER_FABRIC_BLOCK_TMO 0x400 /* hba: fabric block timout */
321 #define WORKER_RAMP_DOWN_QUEUE 0x800 /* hba: Decrease Q depth */
322 #define WORKER_RAMP_UP_QUEUE 0x1000 /* hba: Increase Q depth */
323
324 struct timer_list fc_fdmitmo;
325 struct timer_list els_tmofunc;
326
327 int unreg_vpi_cmpl;
328
329 uint8_t load_flag;
330 #define FC_LOADING 0x1 /* HBA in process of loading drvr */
331 #define FC_UNLOADING 0x2 /* HBA in process of unloading drvr */
332 char *vname; /* Application assigned name */
333
334 /* Vport Config Parameters */
335 uint32_t cfg_scan_down;
336 uint32_t cfg_lun_queue_depth;
337 uint32_t cfg_nodev_tmo;
338 uint32_t cfg_devloss_tmo;
339 uint32_t cfg_restrict_login;
340 uint32_t cfg_peer_port_login;
341 uint32_t cfg_fcp_class;
342 uint32_t cfg_use_adisc;
343 uint32_t cfg_fdmi_on;
344 uint32_t cfg_discovery_threads;
345 uint32_t cfg_log_verbose;
346 uint32_t cfg_max_luns;
347
348 uint32_t dev_loss_tmo_changed;
349
350 struct fc_vport *fc_vport;
351
352 #ifdef CONFIG_LPFC_DEBUG_FS
353 struct dentry *debug_disc_trc;
354 struct dentry *debug_nodelist;
355 struct dentry *vport_debugfs_root;
356 struct lpfc_debugfs_trc *disc_trc;
357 atomic_t disc_trc_cnt;
358 #endif
359 };
360
361 struct hbq_s {
362 uint16_t entry_count; /* Current number of HBQ slots */
363 uint32_t next_hbqPutIdx; /* Index to next HBQ slot to use */
364 uint32_t hbqPutIdx; /* HBQ slot to use */
365 uint32_t local_hbqGetIdx; /* Local copy of Get index from Port */
366 void *hbq_virt; /* Virtual ptr to this hbq */
367 struct list_head hbq_buffer_list; /* buffers assigned to this HBQ */
368 /* Callback for HBQ buffer allocation */
369 struct hbq_dmabuf *(*hbq_alloc_buffer) (struct lpfc_hba *);
370 /* Callback for HBQ buffer free */
371 void (*hbq_free_buffer) (struct lpfc_hba *,
372 struct hbq_dmabuf *);
373 };
374
375 #define LPFC_MAX_HBQS 4
376 /* this matches the position in the lpfc_hbq_defs array */
377 #define LPFC_ELS_HBQ 0
378 #define LPFC_EXTRA_HBQ 1
379
380 struct lpfc_hba {
381 struct lpfc_sli sli;
382 uint32_t sli_rev; /* SLI2 or SLI3 */
383 uint32_t sli3_options; /* Mask of enabled SLI3 options */
384 #define LPFC_SLI3_ENABLED 0x01
385 #define LPFC_SLI3_HBQ_ENABLED 0x02
386 #define LPFC_SLI3_NPIV_ENABLED 0x04
387 #define LPFC_SLI3_VPORT_TEARDOWN 0x08
388 uint32_t iocb_cmd_size;
389 uint32_t iocb_rsp_size;
390
391 enum hba_state link_state;
392 uint32_t link_flag; /* link state flags */
393 #define LS_LOOPBACK_MODE 0x1 /* NPort is in Loopback mode */
394 /* This flag is set while issuing */
395 /* INIT_LINK mailbox command */
396 #define LS_NPIV_FAB_SUPPORTED 0x2 /* Fabric supports NPIV */
397 #define LS_IGNORE_ERATT 0x3 /* intr handler should ignore ERATT */
398
399 struct lpfc_sli2_slim *slim2p;
400 struct lpfc_dmabuf hbqslimp;
401
402 dma_addr_t slim2p_mapping;
403
404 uint16_t pci_cfg_value;
405
406 uint8_t work_found;
407 #define LPFC_MAX_WORKER_ITERATION 4
408
409 uint8_t fc_linkspeed; /* Link speed after last READ_LA */
410
411 uint32_t fc_eventTag; /* event tag for link attention */
412
413
414 struct timer_list fc_estabtmo; /* link establishment timer */
415 /* These fields used to be binfo */
416 uint32_t fc_pref_DID; /* preferred D_ID */
417 uint8_t fc_pref_ALPA; /* preferred AL_PA */
418 uint32_t fc_edtov; /* E_D_TOV timer value */
419 uint32_t fc_arbtov; /* ARB_TOV timer value */
420 uint32_t fc_ratov; /* R_A_TOV timer value */
421 uint32_t fc_rttov; /* R_T_TOV timer value */
422 uint32_t fc_altov; /* AL_TOV timer value */
423 uint32_t fc_crtov; /* C_R_TOV timer value */
424 uint32_t fc_citov; /* C_I_TOV timer value */
425
426 struct serv_parm fc_fabparam; /* fabric service parameters buffer */
427 uint8_t alpa_map[128]; /* AL_PA map from READ_LA */
428
429 uint32_t lmt;
430
431 uint32_t fc_topology; /* link topology, from LINK INIT */
432
433 struct lpfc_stats fc_stat;
434
435 struct lpfc_nodelist fc_fcpnodev; /* nodelist entry for no device */
436 uint32_t nport_event_cnt; /* timestamp for nlplist entry */
437
438 uint8_t wwnn[8];
439 uint8_t wwpn[8];
440 uint32_t RandomData[7];
441
442 /* HBA Config Parameters */
443 uint32_t cfg_ack0;
444 uint32_t cfg_enable_npiv;
445 uint32_t cfg_topology;
446 uint32_t cfg_link_speed;
447 uint32_t cfg_cr_delay;
448 uint32_t cfg_cr_count;
449 uint32_t cfg_multi_ring_support;
450 uint32_t cfg_multi_ring_rctl;
451 uint32_t cfg_multi_ring_type;
452 uint32_t cfg_poll;
453 uint32_t cfg_poll_tmo;
454 uint32_t cfg_use_msi;
455 uint32_t cfg_sg_seg_cnt;
456 uint32_t cfg_sg_dma_buf_size;
457 uint64_t cfg_soft_wwnn;
458 uint64_t cfg_soft_wwpn;
459 uint32_t cfg_hba_queue_depth;
460
461
462 lpfc_vpd_t vpd; /* vital product data */
463
464 struct pci_dev *pcidev;
465 struct list_head work_list;
466 uint32_t work_ha; /* Host Attention Bits for WT */
467 uint32_t work_ha_mask; /* HA Bits owned by WT */
468 uint32_t work_hs; /* HS stored in case of ERRAT */
469 uint32_t work_status[2]; /* Extra status from SLIM */
470
471 wait_queue_head_t *work_wait;
472 struct task_struct *worker_thread;
473
474 uint32_t hbq_count; /* Count of configured HBQs */
475 struct hbq_s hbqs[LPFC_MAX_HBQS]; /* local copy of hbq indicies */
476
477 unsigned long pci_bar0_map; /* Physical address for PCI BAR0 */
478 unsigned long pci_bar2_map; /* Physical address for PCI BAR2 */
479 void __iomem *slim_memmap_p; /* Kernel memory mapped address for
480 PCI BAR0 */
481 void __iomem *ctrl_regs_memmap_p;/* Kernel memory mapped address for
482 PCI BAR2 */
483
484 void __iomem *MBslimaddr; /* virtual address for mbox cmds */
485 void __iomem *HAregaddr; /* virtual address for host attn reg */
486 void __iomem *CAregaddr; /* virtual address for chip attn reg */
487 void __iomem *HSregaddr; /* virtual address for host status
488 reg */
489 void __iomem *HCregaddr; /* virtual address for host ctl reg */
490
491 struct lpfc_hgp __iomem *host_gp; /* Host side get/put pointers */
492 uint32_t __iomem *hbq_put; /* Address in SLIM to HBQ put ptrs */
493 uint32_t *hbq_get; /* Host mem address of HBQ get ptrs */
494
495 int brd_no; /* FC board number */
496
497 char SerialNumber[32]; /* adapter Serial Number */
498 char OptionROMVersion[32]; /* adapter BIOS / Fcode version */
499 char ModelDesc[256]; /* Model Description */
500 char ModelName[80]; /* Model Name */
501 char ProgramType[256]; /* Program Type */
502 char Port[20]; /* Port No */
503 uint8_t vpd_flag; /* VPD data flag */
504
505 #define VPD_MODEL_DESC 0x1 /* valid vpd model description */
506 #define VPD_MODEL_NAME 0x2 /* valid vpd model name */
507 #define VPD_PROGRAM_TYPE 0x4 /* valid vpd program type */
508 #define VPD_PORT 0x8 /* valid vpd port data */
509 #define VPD_MASK 0xf /* mask for any vpd data */
510
511 uint8_t soft_wwn_enable;
512
513 struct timer_list fcp_poll_timer;
514
515 /*
516 * stat counters
517 */
518 uint64_t fc4InputRequests;
519 uint64_t fc4OutputRequests;
520 uint64_t fc4ControlRequests;
521
522 struct lpfc_sysfs_mbox sysfs_mbox;
523
524 /* fastpath list. */
525 spinlock_t scsi_buf_list_lock;
526 struct list_head lpfc_scsi_buf_list;
527 uint32_t total_scsi_bufs;
528 struct list_head lpfc_iocb_list;
529 uint32_t total_iocbq_bufs;
530 spinlock_t hbalock;
531
532 /* pci_mem_pools */
533 struct pci_pool *lpfc_scsi_dma_buf_pool;
534 struct pci_pool *lpfc_mbuf_pool;
535 struct pci_pool *lpfc_hbq_pool;
536 struct lpfc_dma_pool lpfc_mbuf_safety_pool;
537
538 mempool_t *mbox_mem_pool;
539 mempool_t *nlp_mem_pool;
540
541 struct fc_host_statistics link_stats;
542 uint8_t using_msi;
543
544 struct list_head port_list;
545 struct lpfc_vport *pport; /* physical lpfc_vport pointer */
546 uint16_t max_vpi; /* Maximum virtual nports */
547 #define LPFC_MAX_VPI 100 /* Max number of VPI supported */
548 #define LPFC_MAX_VPORTS (LPFC_MAX_VPI+1)/* Max number of VPorts supported */
549 unsigned long *vpi_bmask; /* vpi allocation table */
550
551 /* Data structure used by fabric iocb scheduler */
552 struct list_head fabric_iocb_list;
553 atomic_t fabric_iocb_count;
554 struct timer_list fabric_block_timer;
555 unsigned long bit_flags;
556 #define FABRIC_COMANDS_BLOCKED 0
557 atomic_t num_rsrc_err;
558 atomic_t num_cmd_success;
559 unsigned long last_rsrc_error_time;
560 unsigned long last_ramp_down_time;
561 unsigned long last_ramp_up_time;
562 #ifdef CONFIG_LPFC_DEBUG_FS
563 struct dentry *hba_debugfs_root;
564 atomic_t debugfs_vport_count;
565 struct dentry *debug_hbqinfo;
566 struct dentry *debug_dumpslim;
567 struct dentry *debug_slow_ring_trc;
568 struct lpfc_debugfs_trc *slow_ring_trc;
569 atomic_t slow_ring_trc_cnt;
570 #endif
571
572 /* Fields used for heart beat. */
573 unsigned long last_completion_time;
574 struct timer_list hb_tmofunc;
575 uint8_t hb_outstanding;
576 };
577
578 static inline struct Scsi_Host *
579 lpfc_shost_from_vport(struct lpfc_vport *vport)
580 {
581 return container_of((void *) vport, struct Scsi_Host, hostdata[0]);
582 }
583
584 static inline void
585 lpfc_set_loopback_flag(struct lpfc_hba *phba)
586 {
587 if (phba->cfg_topology == FLAGS_LOCAL_LB)
588 phba->link_flag |= LS_LOOPBACK_MODE;
589 else
590 phba->link_flag &= ~LS_LOOPBACK_MODE;
591 }
592
593 static inline int
594 lpfc_is_link_up(struct lpfc_hba *phba)
595 {
596 return phba->link_state == LPFC_LINK_UP ||
597 phba->link_state == LPFC_CLEAR_LA ||
598 phba->link_state == LPFC_HBA_READY;
599 }
600
601 #define FC_REG_DUMP_EVENT 0x10 /* Register for Dump events */
602
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