tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
1/*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2008 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
24struct lpfc_sli2_slim;
25
26#define LPFC_MAX_TARGET 4096 /* 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_DEFAULT_SG_SEG_CNT 64 /* sg element count per scsi cmnd */
33#define LPFC_MAX_SG_SEG_CNT 256 /* 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#define LPFC_VNAME_LEN 100 /* vport symbolic name length */
37#define LPFC_TGTQ_INTERVAL 40000 /* Min amount of time between tgt
38 queue depth change in millisecs */
39#define LPFC_TGTQ_RAMPUP_PCENT 5 /* Target queue rampup in percentage */
40#define LPFC_MIN_TGT_QDEPTH 100
41#define LPFC_MAX_TGT_QDEPTH 0xFFFF
42
43#define LPFC_MAX_BUCKET_COUNT 20 /* Maximum no. of buckets for stat data
44 collection. */
45/*
46 * Following time intervals are used of adjusting SCSI device
47 * queue depths when there are driver resource error or Firmware
48 * resource error.
49 */
50#define QUEUE_RAMP_DOWN_INTERVAL (1 * HZ) /* 1 Second */
51#define QUEUE_RAMP_UP_INTERVAL (300 * HZ) /* 5 minutes */
52
53/* Number of exchanges reserved for discovery to complete */
54#define LPFC_DISC_IOCB_BUFF_COUNT 20
55
56#define LPFC_HB_MBOX_INTERVAL 5 /* Heart beat interval in seconds. */
57#define LPFC_HB_MBOX_TIMEOUT 30 /* Heart beat timeout in seconds. */
58
59/* Error Attention event polling interval */
60#define LPFC_ERATT_POLL_INTERVAL 5 /* EATT poll interval in seconds */
61
62/* Define macros for 64 bit support */
63#define putPaddrLow(addr) ((uint32_t) (0xffffffff & (u64)(addr)))
64#define putPaddrHigh(addr) ((uint32_t) (0xffffffff & (((u64)(addr))>>32)))
65#define getPaddr(high, low) ((dma_addr_t)( \
66 (( (u64)(high)<<16 ) << 16)|( (u64)(low))))
67/* Provide maximum configuration definitions. */
68#define LPFC_DRVR_TIMEOUT 16 /* driver iocb timeout value in sec */
69#define FC_MAX_ADPTMSG 64
70
71#define MAX_HBAEVT 32
72
73/* Number of MSI-X vectors the driver uses */
74#define LPFC_MSIX_VECTORS 2
75
76/* lpfc wait event data ready flag */
77#define LPFC_DATA_READY (1<<0)
78
79enum lpfc_polling_flags {
80 ENABLE_FCP_RING_POLLING = 0x1,
81 DISABLE_FCP_RING_INT = 0x2
82};
83
84/* Provide DMA memory definitions the driver uses per port instance. */
85struct lpfc_dmabuf {
86 struct list_head list;
87 void *virt; /* virtual address ptr */
88 dma_addr_t phys; /* mapped address */
89 uint32_t buffer_tag; /* used for tagged queue ring */
90};
91
92struct lpfc_dma_pool {
93 struct lpfc_dmabuf *elements;
94 uint32_t max_count;
95 uint32_t current_count;
96};
97
98struct hbq_dmabuf {
99 struct lpfc_dmabuf dbuf;
100 uint32_t size;
101 uint32_t tag;
102};
103
104/* Priority bit. Set value to exceed low water mark in lpfc_mem. */
105#define MEM_PRI 0x100
106
107
108/****************************************************************************/
109/* Device VPD save area */
110/****************************************************************************/
111typedef struct lpfc_vpd {
112 uint32_t status; /* vpd status value */
113 uint32_t length; /* number of bytes actually returned */
114 struct {
115 uint32_t rsvd1; /* Revision numbers */
116 uint32_t biuRev;
117 uint32_t smRev;
118 uint32_t smFwRev;
119 uint32_t endecRev;
120 uint16_t rBit;
121 uint8_t fcphHigh;
122 uint8_t fcphLow;
123 uint8_t feaLevelHigh;
124 uint8_t feaLevelLow;
125 uint32_t postKernRev;
126 uint32_t opFwRev;
127 uint8_t opFwName[16];
128 uint32_t sli1FwRev;
129 uint8_t sli1FwName[16];
130 uint32_t sli2FwRev;
131 uint8_t sli2FwName[16];
132 } rev;
133 struct {
134#ifdef __BIG_ENDIAN_BITFIELD
135 uint32_t rsvd2 :24; /* Reserved */
136 uint32_t cmv : 1; /* Configure Max VPIs */
137 uint32_t ccrp : 1; /* Config Command Ring Polling */
138 uint32_t csah : 1; /* Configure Synchronous Abort Handling */
139 uint32_t chbs : 1; /* Cofigure Host Backing store */
140 uint32_t cinb : 1; /* Enable Interrupt Notification Block */
141 uint32_t cerbm : 1; /* Configure Enhanced Receive Buf Mgmt */
142 uint32_t cmx : 1; /* Configure Max XRIs */
143 uint32_t cmr : 1; /* Configure Max RPIs */
144#else /* __LITTLE_ENDIAN */
145 uint32_t cmr : 1; /* Configure Max RPIs */
146 uint32_t cmx : 1; /* Configure Max XRIs */
147 uint32_t cerbm : 1; /* Configure Enhanced Receive Buf Mgmt */
148 uint32_t cinb : 1; /* Enable Interrupt Notification Block */
149 uint32_t chbs : 1; /* Cofigure Host Backing store */
150 uint32_t csah : 1; /* Configure Synchronous Abort Handling */
151 uint32_t ccrp : 1; /* Config Command Ring Polling */
152 uint32_t cmv : 1; /* Configure Max VPIs */
153 uint32_t rsvd2 :24; /* Reserved */
154#endif
155 } sli3Feat;
156} lpfc_vpd_t;
157
158struct lpfc_scsi_buf;
159
160
161/*
162 * lpfc stat counters
163 */
164struct lpfc_stats {
165 /* Statistics for ELS commands */
166 uint32_t elsLogiCol;
167 uint32_t elsRetryExceeded;
168 uint32_t elsXmitRetry;
169 uint32_t elsDelayRetry;
170 uint32_t elsRcvDrop;
171 uint32_t elsRcvFrame;
172 uint32_t elsRcvRSCN;
173 uint32_t elsRcvRNID;
174 uint32_t elsRcvFARP;
175 uint32_t elsRcvFARPR;
176 uint32_t elsRcvFLOGI;
177 uint32_t elsRcvPLOGI;
178 uint32_t elsRcvADISC;
179 uint32_t elsRcvPDISC;
180 uint32_t elsRcvFAN;
181 uint32_t elsRcvLOGO;
182 uint32_t elsRcvPRLO;
183 uint32_t elsRcvPRLI;
184 uint32_t elsRcvLIRR;
185 uint32_t elsRcvRPS;
186 uint32_t elsRcvRPL;
187 uint32_t elsXmitFLOGI;
188 uint32_t elsXmitFDISC;
189 uint32_t elsXmitPLOGI;
190 uint32_t elsXmitPRLI;
191 uint32_t elsXmitADISC;
192 uint32_t elsXmitLOGO;
193 uint32_t elsXmitSCR;
194 uint32_t elsXmitRNID;
195 uint32_t elsXmitFARP;
196 uint32_t elsXmitFARPR;
197 uint32_t elsXmitACC;
198 uint32_t elsXmitLSRJT;
199
200 uint32_t frameRcvBcast;
201 uint32_t frameRcvMulti;
202 uint32_t strayXmitCmpl;
203 uint32_t frameXmitDelay;
204 uint32_t xriCmdCmpl;
205 uint32_t xriStatErr;
206 uint32_t LinkUp;
207 uint32_t LinkDown;
208 uint32_t LinkMultiEvent;
209 uint32_t NoRcvBuf;
210 uint32_t fcpCmd;
211 uint32_t fcpCmpl;
212 uint32_t fcpRspErr;
213 uint32_t fcpRemoteStop;
214 uint32_t fcpPortRjt;
215 uint32_t fcpPortBusy;
216 uint32_t fcpError;
217 uint32_t fcpLocalErr;
218};
219
220enum sysfs_mbox_state {
221 SMBOX_IDLE,
222 SMBOX_WRITING,
223 SMBOX_READING
224};
225
226struct lpfc_sysfs_mbox {
227 enum sysfs_mbox_state state;
228 size_t offset;
229 struct lpfcMboxq * mbox;
230};
231
232struct lpfc_hba;
233
234
235enum discovery_state {
236 LPFC_VPORT_UNKNOWN = 0, /* vport state is unknown */
237 LPFC_VPORT_FAILED = 1, /* vport has failed */
238 LPFC_LOCAL_CFG_LINK = 6, /* local NPORT Id configured */
239 LPFC_FLOGI = 7, /* FLOGI sent to Fabric */
240 LPFC_FDISC = 8, /* FDISC sent for vport */
241 LPFC_FABRIC_CFG_LINK = 9, /* Fabric assigned NPORT Id
242 * configured */
243 LPFC_NS_REG = 10, /* Register with NameServer */
244 LPFC_NS_QRY = 11, /* Query NameServer for NPort ID list */
245 LPFC_BUILD_DISC_LIST = 12, /* Build ADISC and PLOGI lists for
246 * device authentication / discovery */
247 LPFC_DISC_AUTH = 13, /* Processing ADISC list */
248 LPFC_VPORT_READY = 32,
249};
250
251enum hba_state {
252 LPFC_LINK_UNKNOWN = 0, /* HBA state is unknown */
253 LPFC_WARM_START = 1, /* HBA state after selective reset */
254 LPFC_INIT_START = 2, /* Initial state after board reset */
255 LPFC_INIT_MBX_CMDS = 3, /* Initialize HBA with mbox commands */
256 LPFC_LINK_DOWN = 4, /* HBA initialized, link is down */
257 LPFC_LINK_UP = 5, /* Link is up - issue READ_LA */
258 LPFC_CLEAR_LA = 6, /* authentication cmplt - issue
259 * CLEAR_LA */
260 LPFC_HBA_READY = 32,
261 LPFC_HBA_ERROR = -1
262};
263
264struct lpfc_vport {
265 struct list_head listentry;
266 struct lpfc_hba *phba;
267 uint8_t port_type;
268#define LPFC_PHYSICAL_PORT 1
269#define LPFC_NPIV_PORT 2
270#define LPFC_FABRIC_PORT 3
271 enum discovery_state port_state;
272
273 uint16_t vpi;
274
275 uint32_t fc_flag; /* FC flags */
276/* Several of these flags are HBA centric and should be moved to
277 * phba->link_flag (e.g. FC_PTP, FC_PUBLIC_LOOP)
278 */
279#define FC_PT2PT 0x1 /* pt2pt with no fabric */
280#define FC_PT2PT_PLOGI 0x2 /* pt2pt initiate PLOGI */
281#define FC_DISC_TMO 0x4 /* Discovery timer running */
282#define FC_PUBLIC_LOOP 0x8 /* Public loop */
283#define FC_LBIT 0x10 /* LOGIN bit in loopinit set */
284#define FC_RSCN_MODE 0x20 /* RSCN cmd rcv'ed */
285#define FC_NLP_MORE 0x40 /* More node to process in node tbl */
286#define FC_OFFLINE_MODE 0x80 /* Interface is offline for diag */
287#define FC_FABRIC 0x100 /* We are fabric attached */
288#define FC_RSCN_DISCOVERY 0x400 /* Auth all devices after RSCN */
289#define FC_SCSI_SCAN_TMO 0x4000 /* scsi scan timer running */
290#define FC_ABORT_DISCOVERY 0x8000 /* we want to abort discovery */
291#define FC_NDISC_ACTIVE 0x10000 /* NPort discovery active */
292#define FC_BYPASSED_MODE 0x20000 /* NPort is in bypassed mode */
293#define FC_VPORT_NEEDS_REG_VPI 0x80000 /* Needs to have its vpi registered */
294#define FC_RSCN_DEFERRED 0x100000 /* A deferred RSCN being processed */
295
296 uint32_t ct_flags;
297#define FC_CT_RFF_ID 0x1 /* RFF_ID accepted by switch */
298#define FC_CT_RNN_ID 0x2 /* RNN_ID accepted by switch */
299#define FC_CT_RSNN_NN 0x4 /* RSNN_NN accepted by switch */
300#define FC_CT_RSPN_ID 0x8 /* RSPN_ID accepted by switch */
301#define FC_CT_RFT_ID 0x10 /* RFT_ID accepted by switch */
302
303 struct list_head fc_nodes;
304
305 /* Keep counters for the number of entries in each list. */
306 uint16_t fc_plogi_cnt;
307 uint16_t fc_adisc_cnt;
308 uint16_t fc_reglogin_cnt;
309 uint16_t fc_prli_cnt;
310 uint16_t fc_unmap_cnt;
311 uint16_t fc_map_cnt;
312 uint16_t fc_npr_cnt;
313 uint16_t fc_unused_cnt;
314 struct serv_parm fc_sparam; /* buffer for our service parameters */
315
316 uint32_t fc_myDID; /* fibre channel S_ID */
317 uint32_t fc_prevDID; /* previous fibre channel S_ID */
318
319 int32_t stopped; /* HBA has not been restarted since last ERATT */
320 uint8_t fc_linkspeed; /* Link speed after last READ_LA */
321
322 uint32_t num_disc_nodes; /*in addition to hba_state */
323
324 uint32_t fc_nlp_cnt; /* outstanding NODELIST requests */
325 uint32_t fc_rscn_id_cnt; /* count of RSCNs payloads in list */
326 uint32_t fc_rscn_flush; /* flag use of fc_rscn_id_list */
327 struct lpfc_dmabuf *fc_rscn_id_list[FC_MAX_HOLD_RSCN];
328 struct lpfc_name fc_nodename; /* fc nodename */
329 struct lpfc_name fc_portname; /* fc portname */
330
331 struct lpfc_work_evt disc_timeout_evt;
332
333 struct timer_list fc_disctmo; /* Discovery rescue timer */
334 uint8_t fc_ns_retry; /* retries for fabric nameserver */
335 uint32_t fc_prli_sent; /* cntr for outstanding PRLIs */
336
337 spinlock_t work_port_lock;
338 uint32_t work_port_events; /* Timeout to be handled */
339#define WORKER_DISC_TMO 0x1 /* vport: Discovery timeout */
340#define WORKER_ELS_TMO 0x2 /* vport: ELS timeout */
341#define WORKER_FDMI_TMO 0x4 /* vport: FDMI timeout */
342
343#define WORKER_MBOX_TMO 0x100 /* hba: MBOX timeout */
344#define WORKER_HB_TMO 0x200 /* hba: Heart beat timeout */
345#define WORKER_FABRIC_BLOCK_TMO 0x400 /* hba: fabric block timeout */
346#define WORKER_RAMP_DOWN_QUEUE 0x800 /* hba: Decrease Q depth */
347#define WORKER_RAMP_UP_QUEUE 0x1000 /* hba: Increase Q depth */
348
349 struct timer_list fc_fdmitmo;
350 struct timer_list els_tmofunc;
351
352 int unreg_vpi_cmpl;
353
354 uint8_t load_flag;
355#define FC_LOADING 0x1 /* HBA in process of loading drvr */
356#define FC_UNLOADING 0x2 /* HBA in process of unloading drvr */
357 char *vname; /* Application assigned name */
358
359 /* Vport Config Parameters */
360 uint32_t cfg_scan_down;
361 uint32_t cfg_lun_queue_depth;
362 uint32_t cfg_nodev_tmo;
363 uint32_t cfg_devloss_tmo;
364 uint32_t cfg_restrict_login;
365 uint32_t cfg_peer_port_login;
366 uint32_t cfg_fcp_class;
367 uint32_t cfg_use_adisc;
368 uint32_t cfg_fdmi_on;
369 uint32_t cfg_discovery_threads;
370 uint32_t cfg_log_verbose;
371 uint32_t cfg_max_luns;
372 uint32_t cfg_enable_da_id;
373 uint32_t cfg_max_scsicmpl_time;
374
375 uint32_t dev_loss_tmo_changed;
376
377 struct fc_vport *fc_vport;
378
379#ifdef CONFIG_LPFC_DEBUG_FS
380 struct dentry *debug_disc_trc;
381 struct dentry *debug_nodelist;
382 struct dentry *vport_debugfs_root;
383 struct lpfc_debugfs_trc *disc_trc;
384 atomic_t disc_trc_cnt;
385#endif
386 uint8_t stat_data_enabled;
387 uint8_t stat_data_blocked;
388};
389
390struct hbq_s {
391 uint16_t entry_count; /* Current number of HBQ slots */
392 uint16_t buffer_count; /* Current number of buffers posted */
393 uint32_t next_hbqPutIdx; /* Index to next HBQ slot to use */
394 uint32_t hbqPutIdx; /* HBQ slot to use */
395 uint32_t local_hbqGetIdx; /* Local copy of Get index from Port */
396 void *hbq_virt; /* Virtual ptr to this hbq */
397 struct list_head hbq_buffer_list; /* buffers assigned to this HBQ */
398 /* Callback for HBQ buffer allocation */
399 struct hbq_dmabuf *(*hbq_alloc_buffer) (struct lpfc_hba *);
400 /* Callback for HBQ buffer free */
401 void (*hbq_free_buffer) (struct lpfc_hba *,
402 struct hbq_dmabuf *);
403};
404
405#define LPFC_MAX_HBQS 4
406/* this matches the position in the lpfc_hbq_defs array */
407#define LPFC_ELS_HBQ 0
408#define LPFC_EXTRA_HBQ 1
409
410enum hba_temp_state {
411 HBA_NORMAL_TEMP,
412 HBA_OVER_TEMP
413};
414
415enum intr_type_t {
416 NONE = 0,
417 INTx,
418 MSI,
419 MSIX,
420};
421
422struct lpfc_hba {
423 struct lpfc_sli sli;
424 uint32_t sli_rev; /* SLI2 or SLI3 */
425 uint32_t sli3_options; /* Mask of enabled SLI3 options */
426#define LPFC_SLI3_HBQ_ENABLED 0x01
427#define LPFC_SLI3_NPIV_ENABLED 0x02
428#define LPFC_SLI3_VPORT_TEARDOWN 0x04
429#define LPFC_SLI3_CRP_ENABLED 0x08
430#define LPFC_SLI3_INB_ENABLED 0x10
431 uint32_t iocb_cmd_size;
432 uint32_t iocb_rsp_size;
433
434 enum hba_state link_state;
435 uint32_t link_flag; /* link state flags */
436#define LS_LOOPBACK_MODE 0x1 /* NPort is in Loopback mode */
437 /* This flag is set while issuing */
438 /* INIT_LINK mailbox command */
439#define LS_NPIV_FAB_SUPPORTED 0x2 /* Fabric supports NPIV */
440#define LS_IGNORE_ERATT 0x4 /* intr handler should ignore ERATT */
441
442 uint32_t hba_flag; /* hba generic flags */
443#define HBA_ERATT_HANDLED 0x1 /* This flag is set when eratt handled */
444
445 struct lpfc_dmabuf slim2p;
446
447 MAILBOX_t *mbox;
448 uint32_t *inb_ha_copy;
449 uint32_t *inb_counter;
450 uint32_t inb_last_counter;
451 uint32_t ha_copy;
452 struct _PCB *pcb;
453 struct _IOCB *IOCBs;
454
455 struct lpfc_dmabuf hbqslimp;
456
457 uint16_t pci_cfg_value;
458
459 uint8_t fc_linkspeed; /* Link speed after last READ_LA */
460
461 uint32_t fc_eventTag; /* event tag for link attention */
462
463 /* These fields used to be binfo */
464 uint32_t fc_pref_DID; /* preferred D_ID */
465 uint8_t fc_pref_ALPA; /* preferred AL_PA */
466 uint32_t fc_edtov; /* E_D_TOV timer value */
467 uint32_t fc_arbtov; /* ARB_TOV timer value */
468 uint32_t fc_ratov; /* R_A_TOV timer value */
469 uint32_t fc_rttov; /* R_T_TOV timer value */
470 uint32_t fc_altov; /* AL_TOV timer value */
471 uint32_t fc_crtov; /* C_R_TOV timer value */
472 uint32_t fc_citov; /* C_I_TOV timer value */
473
474 struct serv_parm fc_fabparam; /* fabric service parameters buffer */
475 uint8_t alpa_map[128]; /* AL_PA map from READ_LA */
476
477 uint32_t lmt;
478
479 uint32_t fc_topology; /* link topology, from LINK INIT */
480
481 struct lpfc_stats fc_stat;
482
483 struct lpfc_nodelist fc_fcpnodev; /* nodelist entry for no device */
484 uint32_t nport_event_cnt; /* timestamp for nlplist entry */
485
486 uint8_t wwnn[8];
487 uint8_t wwpn[8];
488 uint32_t RandomData[7];
489
490 /* HBA Config Parameters */
491 uint32_t cfg_ack0;
492 uint32_t cfg_enable_npiv;
493 uint32_t cfg_topology;
494 uint32_t cfg_link_speed;
495 uint32_t cfg_cr_delay;
496 uint32_t cfg_cr_count;
497 uint32_t cfg_multi_ring_support;
498 uint32_t cfg_multi_ring_rctl;
499 uint32_t cfg_multi_ring_type;
500 uint32_t cfg_poll;
501 uint32_t cfg_poll_tmo;
502 uint32_t cfg_use_msi;
503 uint32_t cfg_sg_seg_cnt;
504 uint32_t cfg_sg_dma_buf_size;
505 uint64_t cfg_soft_wwnn;
506 uint64_t cfg_soft_wwpn;
507 uint32_t cfg_hba_queue_depth;
508 uint32_t cfg_enable_hba_reset;
509 uint32_t cfg_enable_hba_heartbeat;
510
511 lpfc_vpd_t vpd; /* vital product data */
512
513 struct pci_dev *pcidev;
514 struct list_head work_list;
515 uint32_t work_ha; /* Host Attention Bits for WT */
516 uint32_t work_ha_mask; /* HA Bits owned by WT */
517 uint32_t work_hs; /* HS stored in case of ERRAT */
518 uint32_t work_status[2]; /* Extra status from SLIM */
519
520 wait_queue_head_t work_waitq;
521 struct task_struct *worker_thread;
522 unsigned long data_flags;
523
524 uint32_t hbq_in_use; /* HBQs in use flag */
525 struct list_head hbqbuf_in_list; /* in-fly hbq buffer list */
526 uint32_t hbq_count; /* Count of configured HBQs */
527 struct hbq_s hbqs[LPFC_MAX_HBQS]; /* local copy of hbq indicies */
528
529 unsigned long pci_bar0_map; /* Physical address for PCI BAR0 */
530 unsigned long pci_bar2_map; /* Physical address for PCI BAR2 */
531 void __iomem *slim_memmap_p; /* Kernel memory mapped address for
532 PCI BAR0 */
533 void __iomem *ctrl_regs_memmap_p;/* Kernel memory mapped address for
534 PCI BAR2 */
535
536 void __iomem *MBslimaddr; /* virtual address for mbox cmds */
537 void __iomem *HAregaddr; /* virtual address for host attn reg */
538 void __iomem *CAregaddr; /* virtual address for chip attn reg */
539 void __iomem *HSregaddr; /* virtual address for host status
540 reg */
541 void __iomem *HCregaddr; /* virtual address for host ctl reg */
542
543 struct lpfc_hgp __iomem *host_gp; /* Host side get/put pointers */
544 struct lpfc_pgp *port_gp;
545 uint32_t __iomem *hbq_put; /* Address in SLIM to HBQ put ptrs */
546 uint32_t *hbq_get; /* Host mem address of HBQ get ptrs */
547
548 int brd_no; /* FC board number */
549
550 char SerialNumber[32]; /* adapter Serial Number */
551 char OptionROMVersion[32]; /* adapter BIOS / Fcode version */
552 char ModelDesc[256]; /* Model Description */
553 char ModelName[80]; /* Model Name */
554 char ProgramType[256]; /* Program Type */
555 char Port[20]; /* Port No */
556 uint8_t vpd_flag; /* VPD data flag */
557
558#define VPD_MODEL_DESC 0x1 /* valid vpd model description */
559#define VPD_MODEL_NAME 0x2 /* valid vpd model name */
560#define VPD_PROGRAM_TYPE 0x4 /* valid vpd program type */
561#define VPD_PORT 0x8 /* valid vpd port data */
562#define VPD_MASK 0xf /* mask for any vpd data */
563
564 uint8_t soft_wwn_enable;
565
566 struct timer_list fcp_poll_timer;
567 struct timer_list eratt_poll;
568
569 /*
570 * stat counters
571 */
572 uint64_t fc4InputRequests;
573 uint64_t fc4OutputRequests;
574 uint64_t fc4ControlRequests;
575
576 struct lpfc_sysfs_mbox sysfs_mbox;
577
578 /* fastpath list. */
579 spinlock_t scsi_buf_list_lock;
580 struct list_head lpfc_scsi_buf_list;
581 uint32_t total_scsi_bufs;
582 struct list_head lpfc_iocb_list;
583 uint32_t total_iocbq_bufs;
584 spinlock_t hbalock;
585
586 /* pci_mem_pools */
587 struct pci_pool *lpfc_scsi_dma_buf_pool;
588 struct pci_pool *lpfc_mbuf_pool;
589 struct pci_pool *lpfc_hbq_pool;
590 struct lpfc_dma_pool lpfc_mbuf_safety_pool;
591
592 mempool_t *mbox_mem_pool;
593 mempool_t *nlp_mem_pool;
594
595 struct fc_host_statistics link_stats;
596 enum intr_type_t intr_type;
597 struct msix_entry msix_entries[LPFC_MSIX_VECTORS];
598
599 struct list_head port_list;
600 struct lpfc_vport *pport; /* physical lpfc_vport pointer */
601 uint16_t max_vpi; /* Maximum virtual nports */
602#define LPFC_MAX_VPI 0xFFFF /* Max number of VPI supported */
603 unsigned long *vpi_bmask; /* vpi allocation table */
604
605 /* Data structure used by fabric iocb scheduler */
606 struct list_head fabric_iocb_list;
607 atomic_t fabric_iocb_count;
608 struct timer_list fabric_block_timer;
609 unsigned long bit_flags;
610#define FABRIC_COMANDS_BLOCKED 0
611 atomic_t num_rsrc_err;
612 atomic_t num_cmd_success;
613 unsigned long last_rsrc_error_time;
614 unsigned long last_ramp_down_time;
615 unsigned long last_ramp_up_time;
616#ifdef CONFIG_LPFC_DEBUG_FS
617 struct dentry *hba_debugfs_root;
618 atomic_t debugfs_vport_count;
619 struct dentry *debug_hbqinfo;
620 struct dentry *debug_dumpHostSlim;
621 struct dentry *debug_dumpHBASlim;
622 struct dentry *debug_slow_ring_trc;
623 struct lpfc_debugfs_trc *slow_ring_trc;
624 atomic_t slow_ring_trc_cnt;
625#endif
626
627 /* Used for deferred freeing of ELS data buffers */
628 struct list_head elsbuf;
629 int elsbuf_cnt;
630 int elsbuf_prev_cnt;
631
632 uint8_t temp_sensor_support;
633 /* Fields used for heart beat. */
634 unsigned long last_completion_time;
635 struct timer_list hb_tmofunc;
636 uint8_t hb_outstanding;
637 enum hba_temp_state over_temp_state;
638 /* ndlp reference management */
639 spinlock_t ndlp_lock;
640 /*
641 * Following bit will be set for all buffer tags which are not
642 * associated with any HBQ.
643 */
644#define QUE_BUFTAG_BIT (1<<31)
645 uint32_t buffer_tag_count;
646 int wait_4_mlo_maint_flg;
647 wait_queue_head_t wait_4_mlo_m_q;
648 /* data structure used for latency data collection */
649#define LPFC_NO_BUCKET 0
650#define LPFC_LINEAR_BUCKET 1
651#define LPFC_POWER2_BUCKET 2
652 uint8_t bucket_type;
653 uint32_t bucket_base;
654 uint32_t bucket_step;
655
656/* Maximum number of events that can be outstanding at any time*/
657#define LPFC_MAX_EVT_COUNT 512
658 atomic_t fast_event_count;
659};
660
661static inline struct Scsi_Host *
662lpfc_shost_from_vport(struct lpfc_vport *vport)
663{
664 return container_of((void *) vport, struct Scsi_Host, hostdata[0]);
665}
666
667static inline void
668lpfc_set_loopback_flag(struct lpfc_hba *phba)
669{
670 if (phba->cfg_topology == FLAGS_LOCAL_LB)
671 phba->link_flag |= LS_LOOPBACK_MODE;
672 else
673 phba->link_flag &= ~LS_LOOPBACK_MODE;
674}
675
676static inline int
677lpfc_is_link_up(struct lpfc_hba *phba)
678{
679 return phba->link_state == LPFC_LINK_UP ||
680 phba->link_state == LPFC_CLEAR_LA ||
681 phba->link_state == LPFC_HBA_READY;
682}
683
684static inline void
685lpfc_worker_wake_up(struct lpfc_hba *phba)
686{
687 /* Set the lpfc data pending flag */
688 set_bit(LPFC_DATA_READY, &phba->data_flags);
689
690 /* Wake up worker thread */
691 wake_up(&phba->work_waitq);
692 return;
693}
694
695static inline void
696lpfc_sli_read_hs(struct lpfc_hba *phba)
697{
698 /*
699 * There was a link/board error. Read the status register to retrieve
700 * the error event and process it.
701 */
702 phba->sli.slistat.err_attn_event++;
703
704 /* Save status info */
705 phba->work_hs = readl(phba->HSregaddr);
706 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
707 phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
708
709 /* Clear chip Host Attention error bit */
710 writel(HA_ERATT, phba->HAregaddr);
711 readl(phba->HAregaddr); /* flush */
712 phba->pport->stopped = 1;
713
714 return;
715}
716