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[SCSI] lpfc: NPIV: add NPIV support on top of SLI-3
[linux-2.6/libata-dev.git] / drivers / scsi / lpfc / lpfc.h
blob4b9019d7d508aae340b0bc69354921abe8f99cc2
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
27 #define LPFC_MAX_TARGET 256 /* max number of targets supported */
28 #define LPFC_MAX_DISC_THREADS 64 /* max outstanding discovery els
29 requests */
30 #define LPFC_MAX_NS_RETRY 3 /* Number of retry attempts to contact
31 the NameServer before giving up. */
32 #define LPFC_CMD_PER_LUN 3 /* max outstanding cmds per lun */
33 #define LPFC_SG_SEG_CNT 64 /* sg element count per scsi cmnd */
34 #define LPFC_IOCB_LIST_CNT 2250 /* list of IOCBs for fast-path usage. */
35 #define LPFC_Q_RAMP_UP_INTERVAL 120 /* lun q_depth ramp up interval */
36
37 /*
38 * Following time intervals are used of adjusting SCSI device
39 * queue depths when there are driver resource error or Firmware
40 * resource error.
41 */
42 #define QUEUE_RAMP_DOWN_INTERVAL (1 * HZ) /* 1 Second */
43 #define QUEUE_RAMP_UP_INTERVAL (300 * HZ) /* 5 minutes */
44
45 /* Number of exchanges reserved for discovery to complete */
46 #define LPFC_DISC_IOCB_BUFF_COUNT 20
47
48 /* Define macros for 64 bit support */
49 #define putPaddrLow(addr) ((uint32_t) (0xffffffff & (u64)(addr)))
50 #define putPaddrHigh(addr) ((uint32_t) (0xffffffff & (((u64)(addr))>>32)))
51 #define getPaddr(high, low) ((dma_addr_t)( \
52 (( (u64)(high)<<16 ) << 16)|( (u64)(low))))
53 /* Provide maximum configuration definitions. */
54 #define LPFC_DRVR_TIMEOUT 16 /* driver iocb timeout value in sec */
55 #define FC_MAX_ADPTMSG 64
56
57 #define MAX_HBAEVT 32
58
59 enum lpfc_polling_flags {
60 ENABLE_FCP_RING_POLLING = 0x1,
61 DISABLE_FCP_RING_INT = 0x2
62 };
63
64 /* Provide DMA memory definitions the driver uses per port instance. */
65 struct lpfc_dmabuf {
66 struct list_head list;
67 void *virt; /* virtual address ptr */
68 dma_addr_t phys; /* mapped address */
69 };
70
71 struct lpfc_dma_pool {
72 struct lpfc_dmabuf *elements;
73 uint32_t max_count;
74 uint32_t current_count;
75 };
76
77 struct hbq_dmabuf {
78 struct lpfc_dmabuf dbuf;
79 uint32_t tag;
80 };
81
82 /* Priority bit. Set value to exceed low water mark in lpfc_mem. */
83 #define MEM_PRI 0x100
84
85
86 /****************************************************************************/
87 /* Device VPD save area */
88 /****************************************************************************/
89 typedef struct lpfc_vpd {
90 uint32_t status; /* vpd status value */
91 uint32_t length; /* number of bytes actually returned */
92 struct {
93 uint32_t rsvd1; /* Revision numbers */
94 uint32_t biuRev;
95 uint32_t smRev;
96 uint32_t smFwRev;
97 uint32_t endecRev;
98 uint16_t rBit;
99 uint8_t fcphHigh;
100 uint8_t fcphLow;
101 uint8_t feaLevelHigh;
102 uint8_t feaLevelLow;
103 uint32_t postKernRev;
104 uint32_t opFwRev;
105 uint8_t opFwName[16];
106 uint32_t sli1FwRev;
107 uint8_t sli1FwName[16];
108 uint32_t sli2FwRev;
109 uint8_t sli2FwName[16];
110 } rev;
111 struct {
112 #ifdef __BIG_ENDIAN_BITFIELD
113 uint32_t rsvd2 :24; /* Reserved */
114 uint32_t cmv : 1; /* Configure Max VPIs */
115 uint32_t ccrp : 1; /* Config Command Ring Polling */
116 uint32_t csah : 1; /* Configure Synchronous Abort Handling */
117 uint32_t chbs : 1; /* Cofigure Host Backing store */
118 uint32_t cinb : 1; /* Enable Interrupt Notification Block */
119 uint32_t cerbm : 1; /* Configure Enhanced Receive Buf Mgmt */
120 uint32_t cmx : 1; /* Configure Max XRIs */
121 uint32_t cmr : 1; /* Configure Max RPIs */
122 #else /* __LITTLE_ENDIAN */
123 uint32_t cmr : 1; /* Configure Max RPIs */
124 uint32_t cmx : 1; /* Configure Max XRIs */
125 uint32_t cerbm : 1; /* Configure Enhanced Receive Buf Mgmt */
126 uint32_t cinb : 1; /* Enable Interrupt Notification Block */
127 uint32_t chbs : 1; /* Cofigure Host Backing store */
128 uint32_t csah : 1; /* Configure Synchronous Abort Handling */
129 uint32_t ccrp : 1; /* Config Command Ring Polling */
130 uint32_t cmv : 1; /* Configure Max VPIs */
131 uint32_t rsvd2 :24; /* Reserved */
132 #endif
133 } sli3Feat;
134 } lpfc_vpd_t;
135
136 struct lpfc_scsi_buf;
137
138
139 /*
140 * lpfc stat counters
141 */
142 struct lpfc_stats {
143 /* Statistics for ELS commands */
144 uint32_t elsLogiCol;
145 uint32_t elsRetryExceeded;
146 uint32_t elsXmitRetry;
147 uint32_t elsDelayRetry;
148 uint32_t elsRcvDrop;
149 uint32_t elsRcvFrame;
150 uint32_t elsRcvRSCN;
151 uint32_t elsRcvRNID;
152 uint32_t elsRcvFARP;
153 uint32_t elsRcvFARPR;
154 uint32_t elsRcvFLOGI;
155 uint32_t elsRcvPLOGI;
156 uint32_t elsRcvADISC;
157 uint32_t elsRcvPDISC;
158 uint32_t elsRcvFAN;
159 uint32_t elsRcvLOGO;
160 uint32_t elsRcvPRLO;
161 uint32_t elsRcvPRLI;
162 uint32_t elsRcvLIRR;
163 uint32_t elsRcvRPS;
164 uint32_t elsRcvRPL;
165 uint32_t elsXmitFLOGI;
166 uint32_t elsXmitFDISC;
167 uint32_t elsXmitPLOGI;
168 uint32_t elsXmitPRLI;
169 uint32_t elsXmitADISC;
170 uint32_t elsXmitLOGO;
171 uint32_t elsXmitSCR;
172 uint32_t elsXmitRNID;
173 uint32_t elsXmitFARP;
174 uint32_t elsXmitFARPR;
175 uint32_t elsXmitACC;
176 uint32_t elsXmitLSRJT;
177
178 uint32_t frameRcvBcast;
179 uint32_t frameRcvMulti;
180 uint32_t strayXmitCmpl;
181 uint32_t frameXmitDelay;
182 uint32_t xriCmdCmpl;
183 uint32_t xriStatErr;
184 uint32_t LinkUp;
185 uint32_t LinkDown;
186 uint32_t LinkMultiEvent;
187 uint32_t NoRcvBuf;
188 uint32_t fcpCmd;
189 uint32_t fcpCmpl;
190 uint32_t fcpRspErr;
191 uint32_t fcpRemoteStop;
192 uint32_t fcpPortRjt;
193 uint32_t fcpPortBusy;
194 uint32_t fcpError;
195 uint32_t fcpLocalErr;
196 };
197
198 enum sysfs_mbox_state {
199 SMBOX_IDLE,
200 SMBOX_WRITING,
201 SMBOX_READING
202 };
203
204 struct lpfc_sysfs_mbox {
205 enum sysfs_mbox_state state;
206 size_t offset;
207 struct lpfcMboxq * mbox;
208 };
209
210 struct lpfc_hba;
211
212
213 enum discovery_state {
214 LPFC_VPORT_UNKNOWN = 0, /* vport state is unknown */
215 LPFC_VPORT_FAILED = 1, /* vport has failed */
216 LPFC_LOCAL_CFG_LINK = 6, /* local NPORT Id configured */
217 LPFC_FLOGI = 7, /* FLOGI sent to Fabric */
218 LPFC_FDISC = 8, /* FDISC sent for vport */
219 LPFC_FABRIC_CFG_LINK = 9, /* Fabric assigned NPORT Id
220 * configured */
221 LPFC_NS_REG = 10, /* Register with NameServer */
222 LPFC_NS_QRY = 11, /* Query NameServer for NPort ID list */
223 LPFC_BUILD_DISC_LIST = 12, /* Build ADISC and PLOGI lists for
224 * device authentication / discovery */
225 LPFC_DISC_AUTH = 13, /* Processing ADISC list */
226 LPFC_VPORT_READY = 32,
227 };
228
229 enum hba_state {
230 LPFC_LINK_UNKNOWN = 0, /* HBA state is unknown */
231 LPFC_WARM_START = 1, /* HBA state after selective reset */
232 LPFC_INIT_START = 2, /* Initial state after board reset */
233 LPFC_INIT_MBX_CMDS = 3, /* Initialize HBA with mbox commands */
234 LPFC_LINK_DOWN = 4, /* HBA initialized, link is down */
235 LPFC_LINK_UP = 5, /* Link is up - issue READ_LA */
236 LPFC_CLEAR_LA = 6, /* authentication cmplt - issue
237 * CLEAR_LA */
238 LPFC_HBA_READY = 32,
239 LPFC_HBA_ERROR = -1
240 };
241
242 struct lpfc_vport {
243 struct list_head listentry;
244 struct lpfc_hba *phba;
245 uint8_t port_type;
246 #define LPFC_PHYSICAL_PORT 1
247 #define LPFC_NPIV_PORT 2
248 #define LPFC_FABRIC_PORT 3
249 enum discovery_state port_state;
250
251 uint16_t vpi;
252
253 uint32_t fc_flag; /* FC flags */
254 /* Several of these flags are HBA centric and should be moved to
255 * phba->link_flag (e.g. FC_PTP, FC_PUBLIC_LOOP)
256 */
257 #define FC_PT2PT 0x1 /* pt2pt with no fabric */
258 #define FC_PT2PT_PLOGI 0x2 /* pt2pt initiate PLOGI */
259 #define FC_DISC_TMO 0x4 /* Discovery timer running */
260 #define FC_PUBLIC_LOOP 0x8 /* Public loop */
261 #define FC_LBIT 0x10 /* LOGIN bit in loopinit set */
262 #define FC_RSCN_MODE 0x20 /* RSCN cmd rcv'ed */
263 #define FC_NLP_MORE 0x40 /* More node to process in node tbl */
264 #define FC_OFFLINE_MODE 0x80 /* Interface is offline for diag */
265 #define FC_FABRIC 0x100 /* We are fabric attached */
266 #define FC_ESTABLISH_LINK 0x200 /* Reestablish Link */
267 #define FC_RSCN_DISCOVERY 0x400 /* Auth all devices after RSCN */
268 #define FC_SCSI_SCAN_TMO 0x4000 /* scsi scan timer running */
269 #define FC_ABORT_DISCOVERY 0x8000 /* we want to abort discovery */
270 #define FC_NDISC_ACTIVE 0x10000 /* NPort discovery active */
271 #define FC_BYPASSED_MODE 0x20000 /* NPort is in bypassed mode */
272 #define FC_RFF_NOT_SUPPORTED 0x40000 /* RFF_ID was rejected by switch */
273 #define FC_VPORT_NEEDS_REG_VPI 0x80000 /* Needs to have its vpi registered */
274 #define FC_RSCN_DEFERRED 0x100000 /* A deferred RSCN being processed */
275
276 struct list_head fc_nodes;
277
278 /* Keep counters for the number of entries in each list. */
279 uint16_t fc_plogi_cnt;
280 uint16_t fc_adisc_cnt;
281 uint16_t fc_reglogin_cnt;
282 uint16_t fc_prli_cnt;
283 uint16_t fc_unmap_cnt;
284 uint16_t fc_map_cnt;
285 uint16_t fc_npr_cnt;
286 uint16_t fc_unused_cnt;
287 struct serv_parm fc_sparam; /* buffer for our service parameters */
288
289 uint32_t fc_myDID; /* fibre channel S_ID */
290 uint32_t fc_prevDID; /* previous fibre channel S_ID */
291
292 int32_t stopped; /* HBA has not been restarted since last ERATT */
293 uint8_t fc_linkspeed; /* Link speed after last READ_LA */
294
295 uint32_t num_disc_nodes; /*in addition to hba_state */
296
297 uint32_t fc_nlp_cnt; /* outstanding NODELIST requests */
298 uint32_t fc_rscn_id_cnt; /* count of RSCNs payloads in list */
299 struct lpfc_dmabuf *fc_rscn_id_list[FC_MAX_HOLD_RSCN];
300 struct lpfc_name fc_nodename; /* fc nodename */
301 struct lpfc_name fc_portname; /* fc portname */
302
303 struct lpfc_work_evt disc_timeout_evt;
304
305 struct timer_list fc_disctmo; /* Discovery rescue timer */
306 uint8_t fc_ns_retry; /* retries for fabric nameserver */
307 uint32_t fc_prli_sent; /* cntr for outstanding PRLIs */
308
309 spinlock_t work_port_lock;
310 uint32_t work_port_events; /* Timeout to be handled */
311 #define WORKER_DISC_TMO 0x1 /* Discovery timeout */
312 #define WORKER_ELS_TMO 0x2 /* ELS timeout */
313 #define WORKER_MBOX_TMO 0x4 /* MBOX timeout */
314 #define WORKER_FDMI_TMO 0x8 /* FDMI timeout */
315 #define WORKER_FABRIC_BLOCK_TMO 0x10 /* fabric block timout */
316 #define WORKER_RAMP_DOWN_QUEUE 0x20 /* Decrease Q depth */
317 #define WORKER_RAMP_UP_QUEUE 0x40 /* Increase Q depth */
318
319 struct timer_list fc_fdmitmo;
320 struct timer_list els_tmofunc;
321
322 int unreg_vpi_cmpl;
323
324 uint8_t load_flag;
325 #define FC_LOADING 0x1 /* HBA in process of loading drvr */
326 #define FC_UNLOADING 0x2 /* HBA in process of unloading drvr */
327 char *vname; /* Application assigned name */
328 struct fc_vport *fc_vport;
329 };
330
331 struct hbq_s {
332 uint16_t entry_count; /* Current number of HBQ slots */
333 uint32_t next_hbqPutIdx; /* Index to next HBQ slot to use */
334 uint32_t hbqPutIdx; /* HBQ slot to use */
335 uint32_t local_hbqGetIdx; /* Local copy of Get index from Port */
336 };
337
338 #define LPFC_MAX_HBQS 16
339 /* this matches the possition in the lpfc_hbq_defs array */
340 #define LPFC_ELS_HBQ 0
341
342 struct lpfc_hba {
343 struct lpfc_sli sli;
344 uint32_t sli_rev; /* SLI2 or SLI3 */
345 uint32_t sli3_options; /* Mask of enabled SLI3 options */
346 #define LPFC_SLI3_ENABLED 0x01
347 #define LPFC_SLI3_HBQ_ENABLED 0x02
348 #define LPFC_SLI3_NPIV_ENABLED 0x04
349 #define LPFC_SLI3_VPORT_TEARDOWN 0x08
350 uint32_t iocb_cmd_size;
351 uint32_t iocb_rsp_size;
352
353 enum hba_state link_state;
354 uint32_t link_flag; /* link state flags */
355 #define LS_LOOPBACK_MODE 0x1 /* NPort is in Loopback mode */
356 /* This flag is set while issuing */
357 /* INIT_LINK mailbox command */
358 #define LS_NPIV_FAB_SUPPORTED 0x2 /* Fabric supports NPIV */
359 #define LS_IGNORE_ERATT 0x3 /* intr handler should ignore ERATT */
360
361 struct lpfc_sli2_slim *slim2p;
362 struct lpfc_dmabuf hbqslimp;
363
364 dma_addr_t slim2p_mapping;
365
366 uint16_t pci_cfg_value;
367
368 uint8_t work_found;
369 #define LPFC_MAX_WORKER_ITERATION 4
370
371 uint8_t fc_linkspeed; /* Link speed after last READ_LA */
372
373 uint32_t fc_eventTag; /* event tag for link attention */
374
375
376 struct timer_list fc_estabtmo; /* link establishment timer */
377 /* These fields used to be binfo */
378 uint32_t fc_pref_DID; /* preferred D_ID */
379 uint8_t fc_pref_ALPA; /* preferred AL_PA */
380 uint32_t fc_edtov; /* E_D_TOV timer value */
381 uint32_t fc_arbtov; /* ARB_TOV timer value */
382 uint32_t fc_ratov; /* R_A_TOV timer value */
383 uint32_t fc_rttov; /* R_T_TOV timer value */
384 uint32_t fc_altov; /* AL_TOV timer value */
385 uint32_t fc_crtov; /* C_R_TOV timer value */
386 uint32_t fc_citov; /* C_I_TOV timer value */
387
388 struct serv_parm fc_fabparam; /* fabric service parameters buffer */
389 uint8_t alpa_map[128]; /* AL_PA map from READ_LA */
390
391 uint32_t lmt;
392
393 uint32_t fc_topology; /* link topology, from LINK INIT */
394
395 struct lpfc_stats fc_stat;
396
397 struct lpfc_nodelist fc_fcpnodev; /* nodelist entry for no device */
398 uint32_t nport_event_cnt; /* timestamp for nlplist entry */
399
400 uint8_t wwnn[8];
401 uint8_t wwpn[8];
402 uint32_t RandomData[7];
403
404 uint32_t cfg_log_verbose;
405 uint32_t cfg_lun_queue_depth;
406 uint32_t cfg_nodev_tmo;
407 uint32_t cfg_devloss_tmo;
408 uint32_t cfg_hba_queue_depth;
409 uint32_t cfg_peer_port_login;
410 uint32_t cfg_vport_restrict_login;
411 uint32_t cfg_fcp_class;
412 uint32_t cfg_use_adisc;
413 uint32_t cfg_ack0;
414 uint32_t cfg_topology;
415 uint32_t cfg_scan_down;
416 uint32_t cfg_link_speed;
417 uint32_t cfg_cr_delay;
418 uint32_t cfg_cr_count;
419 uint32_t cfg_multi_ring_support;
420 uint32_t cfg_multi_ring_rctl;
421 uint32_t cfg_multi_ring_type;
422 uint32_t cfg_fdmi_on;
423 uint32_t cfg_discovery_threads;
424 uint32_t cfg_max_luns;
425 uint32_t cfg_poll;
426 uint32_t cfg_poll_tmo;
427 uint32_t cfg_use_msi;
428 uint32_t cfg_sg_seg_cnt;
429 uint32_t cfg_sg_dma_buf_size;
430 uint64_t cfg_soft_wwnn;
431 uint64_t cfg_soft_wwpn;
432
433 uint32_t dev_loss_tmo_changed;
434
435 lpfc_vpd_t vpd; /* vital product data */
436
437 struct pci_dev *pcidev;
438 struct list_head work_list;
439 uint32_t work_ha; /* Host Attention Bits for WT */
440 uint32_t work_ha_mask; /* HA Bits owned by WT */
441 uint32_t work_hs; /* HS stored in case of ERRAT */
442 uint32_t work_status[2]; /* Extra status from SLIM */
443
444 wait_queue_head_t *work_wait;
445 struct task_struct *worker_thread;
446
447 struct list_head hbq_buffer_list;
448 uint32_t hbq_count; /* Count of configured HBQs */
449 struct hbq_s hbqs[LPFC_MAX_HBQS]; /* local copy of hbq indicies */
450
451 unsigned long pci_bar0_map; /* Physical address for PCI BAR0 */
452 unsigned long pci_bar2_map; /* Physical address for PCI BAR2 */
453 void __iomem *slim_memmap_p; /* Kernel memory mapped address for
454 PCI BAR0 */
455 void __iomem *ctrl_regs_memmap_p;/* Kernel memory mapped address for
456 PCI BAR2 */
457
458 void __iomem *MBslimaddr; /* virtual address for mbox cmds */
459 void __iomem *HAregaddr; /* virtual address for host attn reg */
460 void __iomem *CAregaddr; /* virtual address for chip attn reg */
461 void __iomem *HSregaddr; /* virtual address for host status
462 reg */
463 void __iomem *HCregaddr; /* virtual address for host ctl reg */
464
465 struct lpfc_hgp __iomem *host_gp; /* Host side get/put pointers */
466 uint32_t __iomem *hbq_put; /* Address in SLIM to HBQ put ptrs */
467 uint32_t *hbq_get; /* Host mem address of HBQ get ptrs */
468
469 int brd_no; /* FC board number */
470
471 char SerialNumber[32]; /* adapter Serial Number */
472 char OptionROMVersion[32]; /* adapter BIOS / Fcode version */
473 char ModelDesc[256]; /* Model Description */
474 char ModelName[80]; /* Model Name */
475 char ProgramType[256]; /* Program Type */
476 char Port[20]; /* Port No */
477 uint8_t vpd_flag; /* VPD data flag */
478
479 #define VPD_MODEL_DESC 0x1 /* valid vpd model description */
480 #define VPD_MODEL_NAME 0x2 /* valid vpd model name */
481 #define VPD_PROGRAM_TYPE 0x4 /* valid vpd program type */
482 #define VPD_PORT 0x8 /* valid vpd port data */
483 #define VPD_MASK 0xf /* mask for any vpd data */
484
485 uint8_t soft_wwn_enable;
486
487 struct timer_list fcp_poll_timer;
488
489 /*
490 * stat counters
491 */
492 uint64_t fc4InputRequests;
493 uint64_t fc4OutputRequests;
494 uint64_t fc4ControlRequests;
495
496 struct lpfc_sysfs_mbox sysfs_mbox;
497
498 /* fastpath list. */
499 spinlock_t scsi_buf_list_lock;
500 struct list_head lpfc_scsi_buf_list;
501 uint32_t total_scsi_bufs;
502 struct list_head lpfc_iocb_list;
503 uint32_t total_iocbq_bufs;
504 spinlock_t hbalock;
505
506 /* pci_mem_pools */
507 struct pci_pool *lpfc_scsi_dma_buf_pool;
508 struct pci_pool *lpfc_mbuf_pool;
509 struct pci_pool *lpfc_hbq_pool;
510 struct lpfc_dma_pool lpfc_mbuf_safety_pool;
511
512 mempool_t *mbox_mem_pool;
513 mempool_t *nlp_mem_pool;
514
515 struct fc_host_statistics link_stats;
516 struct list_head port_list;
517 struct lpfc_vport *pport; /* physical lpfc_vport pointer */
518 uint16_t max_vpi; /* Maximum virtual nports */
519 uint16_t vpi_cnt; /* Nport count */
520 #define LPFC_MAX_VPI 100 /* Max number of VPorts supported */
521 unsigned long *vpi_bmask; /* vpi allocation table */
522
523 /* Data structure used by fabric iocb scheduler */
524 struct list_head fabric_iocb_list;
525 atomic_t fabric_iocb_count;
526 struct timer_list fabric_block_timer;
527 unsigned long bit_flags;
528 #define FABRIC_COMANDS_BLOCKED 0
529 atomic_t num_rsrc_err;
530 atomic_t num_cmd_success;
531 unsigned long last_rsrc_error_time;
532 unsigned long last_ramp_down_time;
533 unsigned long last_ramp_up_time;
534 };
535
536 static inline struct Scsi_Host *
537 lpfc_shost_from_vport(struct lpfc_vport *vport)
538 {
539 return container_of((void *) vport, struct Scsi_Host, hostdata[0]);
540 }
541
542 static inline void
543 lpfc_set_loopback_flag(struct lpfc_hba *phba)
544 {
545 if (phba->cfg_topology == FLAGS_LOCAL_LB)
546 phba->link_flag |= LS_LOOPBACK_MODE;
547 else
548 phba->link_flag &= ~LS_LOOPBACK_MODE;
549 }
550
551 static inline int
552 lpfc_is_link_up(struct lpfc_hba *phba)
553 {
554 return phba->link_state == LPFC_LINK_UP ||
555 phba->link_state == LPFC_CLEAR_LA ||
556 phba->link_state == LPFC_HBA_READY;
557 }
558
559 #define FC_REG_DUMP_EVENT 0x10 /* Register for Dump events */
560
Linux 2.6 libata-dev (mirror)