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
24 struct 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_DEFAULT_PROT_SG_SEG_CNT 4096 /* sg protection elements count */
34 #define LPFC_MAX_SG_SEG_CNT 4096 /* sg element count per scsi cmnd */
35 #define LPFC_MAX_PROT_SG_SEG_CNT 4096 /* prot sg element count per scsi cmd*/
36 #define LPFC_IOCB_LIST_CNT 2250 /* list of IOCBs for fast-path usage. */
37 #define LPFC_Q_RAMP_UP_INTERVAL 120 /* lun q_depth ramp up interval */
38 #define LPFC_VNAME_LEN 100 /* vport symbolic name length */
39 #define LPFC_TGTQ_INTERVAL 40000 /* Min amount of time between tgt
40 queue depth change in millisecs */
41 #define LPFC_TGTQ_RAMPUP_PCENT 5 /* Target queue rampup in percentage */
42 #define LPFC_MIN_TGT_QDEPTH 100
43 #define LPFC_MAX_TGT_QDEPTH 0xFFFF
44
45 #define LPFC_MAX_BUCKET_COUNT 20 /* Maximum no. of buckets for stat data
46 collection. */
47 /*
48 * Following time intervals are used of adjusting SCSI device
49 * queue depths when there are driver resource error or Firmware
50 * resource error.
51 */
52 #define QUEUE_RAMP_DOWN_INTERVAL (1 * HZ) /* 1 Second */
53 #define QUEUE_RAMP_UP_INTERVAL (300 * HZ) /* 5 minutes */
54
55 /* Number of exchanges reserved for discovery to complete */
56 #define LPFC_DISC_IOCB_BUFF_COUNT 20
57
58 #define LPFC_HB_MBOX_INTERVAL 5 /* Heart beat interval in seconds. */
59 #define LPFC_HB_MBOX_TIMEOUT 30 /* Heart beat timeout in seconds. */
60
61 /* Error Attention event polling interval */
62 #define LPFC_ERATT_POLL_INTERVAL 5 /* EATT poll interval in seconds */
63
64 /* Define macros for 64 bit support */
65 #define putPaddrLow(addr) ((uint32_t) (0xffffffff & (u64)(addr)))
66 #define putPaddrHigh(addr) ((uint32_t) (0xffffffff & (((u64)(addr))>>32)))
67 #define getPaddr(high, low) ((dma_addr_t)( \
68 (( (u64)(high)<<16 ) << 16)|( (u64)(low))))
69 /* Provide maximum configuration definitions. */
70 #define LPFC_DRVR_TIMEOUT 16 /* driver iocb timeout value in sec */
71 #define FC_MAX_ADPTMSG 64
72
73 #define MAX_HBAEVT 32
74
75 /* Number of MSI-X vectors the driver uses */
76 #define LPFC_MSIX_VECTORS 2
77
78 /* lpfc wait event data ready flag */
79 #define LPFC_DATA_READY (1<<0)
80
81 enum lpfc_polling_flags {
82 ENABLE_FCP_RING_POLLING = 0x1,
83 DISABLE_FCP_RING_INT = 0x2
84 };
85
86 /* Provide DMA memory definitions the driver uses per port instance. */
87 struct lpfc_dmabuf {
88 struct list_head list;
89 void *virt; /* virtual address ptr */
90 dma_addr_t phys; /* mapped address */
91 uint32_t buffer_tag; /* used for tagged queue ring */
92 };
93
94 struct lpfc_dma_pool {
95 struct lpfc_dmabuf *elements;
96 uint32_t max_count;
97 uint32_t current_count;
98 };
99
100 struct hbq_dmabuf {
101 struct lpfc_dmabuf dbuf;
102 uint32_t size;
103 uint32_t tag;
104 };
105
106 /* Priority bit. Set value to exceed low water mark in lpfc_mem. */
107 #define MEM_PRI 0x100
108
109
110 /****************************************************************************/
111 /* Device VPD save area */
112 /****************************************************************************/
113 typedef struct lpfc_vpd {
114 uint32_t status; /* vpd status value */
115 uint32_t length; /* number of bytes actually returned */
116 struct {
117 uint32_t rsvd1; /* Revision numbers */
118 uint32_t biuRev;
119 uint32_t smRev;
120 uint32_t smFwRev;
121 uint32_t endecRev;
122 uint16_t rBit;
123 uint8_t fcphHigh;
124 uint8_t fcphLow;
125 uint8_t feaLevelHigh;
126 uint8_t feaLevelLow;
127 uint32_t postKernRev;
128 uint32_t opFwRev;
129 uint8_t opFwName[16];
130 uint32_t sli1FwRev;
131 uint8_t sli1FwName[16];
132 uint32_t sli2FwRev;
133 uint8_t sli2FwName[16];
134 } rev;
135 struct {
136 #ifdef __BIG_ENDIAN_BITFIELD
137 uint32_t rsvd2 :24; /* Reserved */
138 uint32_t cmv : 1; /* Configure Max VPIs */
139 uint32_t ccrp : 1; /* Config Command Ring Polling */
140 uint32_t csah : 1; /* Configure Synchronous Abort Handling */
141 uint32_t chbs : 1; /* Cofigure Host Backing store */
142 uint32_t cinb : 1; /* Enable Interrupt Notification Block */
143 uint32_t cerbm : 1; /* Configure Enhanced Receive Buf Mgmt */
144 uint32_t cmx : 1; /* Configure Max XRIs */
145 uint32_t cmr : 1; /* Configure Max RPIs */
146 #else /* __LITTLE_ENDIAN */
147 uint32_t cmr : 1; /* Configure Max RPIs */
148 uint32_t cmx : 1; /* Configure Max XRIs */
149 uint32_t cerbm : 1; /* Configure Enhanced Receive Buf Mgmt */
150 uint32_t cinb : 1; /* Enable Interrupt Notification Block */
151 uint32_t chbs : 1; /* Cofigure Host Backing store */
152 uint32_t csah : 1; /* Configure Synchronous Abort Handling */
153 uint32_t ccrp : 1; /* Config Command Ring Polling */
154 uint32_t cmv : 1; /* Configure Max VPIs */
155 uint32_t rsvd2 :24; /* Reserved */
156 #endif
157 } sli3Feat;
158 } lpfc_vpd_t;
159
160 struct lpfc_scsi_buf;
161
162
163 /*
164 * lpfc stat counters
165 */
166 struct lpfc_stats {
167 /* Statistics for ELS commands */
168 uint32_t elsLogiCol;
169 uint32_t elsRetryExceeded;
170 uint32_t elsXmitRetry;
171 uint32_t elsDelayRetry;
172 uint32_t elsRcvDrop;
173 uint32_t elsRcvFrame;
174 uint32_t elsRcvRSCN;
175 uint32_t elsRcvRNID;
176 uint32_t elsRcvFARP;
177 uint32_t elsRcvFARPR;
178 uint32_t elsRcvFLOGI;
179 uint32_t elsRcvPLOGI;
180 uint32_t elsRcvADISC;
181 uint32_t elsRcvPDISC;
182 uint32_t elsRcvFAN;
183 uint32_t elsRcvLOGO;
184 uint32_t elsRcvPRLO;
185 uint32_t elsRcvPRLI;
186 uint32_t elsRcvLIRR;
187 uint32_t elsRcvRPS;
188 uint32_t elsRcvRPL;
189 uint32_t elsXmitFLOGI;
190 uint32_t elsXmitFDISC;
191 uint32_t elsXmitPLOGI;
192 uint32_t elsXmitPRLI;
193 uint32_t elsXmitADISC;
194 uint32_t elsXmitLOGO;
195 uint32_t elsXmitSCR;
196 uint32_t elsXmitRNID;
197 uint32_t elsXmitFARP;
198 uint32_t elsXmitFARPR;
199 uint32_t elsXmitACC;
200 uint32_t elsXmitLSRJT;
201
202 uint32_t frameRcvBcast;
203 uint32_t frameRcvMulti;
204 uint32_t strayXmitCmpl;
205 uint32_t frameXmitDelay;
206 uint32_t xriCmdCmpl;
207 uint32_t xriStatErr;
208 uint32_t LinkUp;
209 uint32_t LinkDown;
210 uint32_t LinkMultiEvent;
211 uint32_t NoRcvBuf;
212 uint32_t fcpCmd;
213 uint32_t fcpCmpl;
214 uint32_t fcpRspErr;
215 uint32_t fcpRemoteStop;
216 uint32_t fcpPortRjt;
217 uint32_t fcpPortBusy;
218 uint32_t fcpError;
219 uint32_t fcpLocalErr;
220 };
221
222 enum sysfs_mbox_state {
223 SMBOX_IDLE,
224 SMBOX_WRITING,
225 SMBOX_READING
226 };
227
228 struct lpfc_sysfs_mbox {
229 enum sysfs_mbox_state state;
230 size_t offset;
231 struct lpfcMboxq * mbox;
232 };
233
234 struct lpfc_hba;
235
236
237 enum discovery_state {
238 LPFC_VPORT_UNKNOWN = 0, /* vport state is unknown */
239 LPFC_VPORT_FAILED = 1, /* vport has failed */
240 LPFC_LOCAL_CFG_LINK = 6, /* local NPORT Id configured */
241 LPFC_FLOGI = 7, /* FLOGI sent to Fabric */
242 LPFC_FDISC = 8, /* FDISC sent for vport */
243 LPFC_FABRIC_CFG_LINK = 9, /* Fabric assigned NPORT Id
244 * configured */
245 LPFC_NS_REG = 10, /* Register with NameServer */
246 LPFC_NS_QRY = 11, /* Query NameServer for NPort ID list */
247 LPFC_BUILD_DISC_LIST = 12, /* Build ADISC and PLOGI lists for
248 * device authentication / discovery */
249 LPFC_DISC_AUTH = 13, /* Processing ADISC list */
250 LPFC_VPORT_READY = 32,
251 };
252
253 enum hba_state {
254 LPFC_LINK_UNKNOWN = 0, /* HBA state is unknown */
255 LPFC_WARM_START = 1, /* HBA state after selective reset */
256 LPFC_INIT_START = 2, /* Initial state after board reset */
257 LPFC_INIT_MBX_CMDS = 3, /* Initialize HBA with mbox commands */
258 LPFC_LINK_DOWN = 4, /* HBA initialized, link is down */
259 LPFC_LINK_UP = 5, /* Link is up - issue READ_LA */
260 LPFC_CLEAR_LA = 6, /* authentication cmplt - issue
261 * CLEAR_LA */
262 LPFC_HBA_READY = 32,
263 LPFC_HBA_ERROR = -1
264 };
265
266 struct lpfc_vport {
267 struct list_head listentry;
268 struct lpfc_hba *phba;
269 uint8_t port_type;
270 #define LPFC_PHYSICAL_PORT 1
271 #define LPFC_NPIV_PORT 2
272 #define LPFC_FABRIC_PORT 3
273 enum discovery_state port_state;
274
275 uint16_t vpi;
276
277 uint32_t fc_flag; /* FC flags */
278 /* Several of these flags are HBA centric and should be moved to
279 * phba->link_flag (e.g. FC_PTP, FC_PUBLIC_LOOP)
280 */
281 #define FC_PT2PT 0x1 /* pt2pt with no fabric */
282 #define FC_PT2PT_PLOGI 0x2 /* pt2pt initiate PLOGI */
283 #define FC_DISC_TMO 0x4 /* Discovery timer running */
284 #define FC_PUBLIC_LOOP 0x8 /* Public loop */
285 #define FC_LBIT 0x10 /* LOGIN bit in loopinit set */
286 #define FC_RSCN_MODE 0x20 /* RSCN cmd rcv'ed */
287 #define FC_NLP_MORE 0x40 /* More node to process in node tbl */
288 #define FC_OFFLINE_MODE 0x80 /* Interface is offline for diag */
289 #define FC_FABRIC 0x100 /* We are fabric attached */
290 #define FC_RSCN_DISCOVERY 0x400 /* Auth all devices after RSCN */
291 #define FC_SCSI_SCAN_TMO 0x4000 /* scsi scan timer running */
292 #define FC_ABORT_DISCOVERY 0x8000 /* we want to abort discovery */
293 #define FC_NDISC_ACTIVE 0x10000 /* NPort discovery active */
294 #define FC_BYPASSED_MODE 0x20000 /* NPort is in bypassed mode */
295 #define FC_VPORT_NEEDS_REG_VPI 0x80000 /* Needs to have its vpi registered */
296 #define FC_RSCN_DEFERRED 0x100000 /* A deferred RSCN being processed */
297
298 uint32_t ct_flags;
299 #define FC_CT_RFF_ID 0x1 /* RFF_ID accepted by switch */
300 #define FC_CT_RNN_ID 0x2 /* RNN_ID accepted by switch */
301 #define FC_CT_RSNN_NN 0x4 /* RSNN_NN accepted by switch */
302 #define FC_CT_RSPN_ID 0x8 /* RSPN_ID accepted by switch */
303 #define FC_CT_RFT_ID 0x10 /* RFT_ID accepted by switch */
304
305 struct list_head fc_nodes;
306
307 /* Keep counters for the number of entries in each list. */
308 uint16_t fc_plogi_cnt;
309 uint16_t fc_adisc_cnt;
310 uint16_t fc_reglogin_cnt;
311 uint16_t fc_prli_cnt;
312 uint16_t fc_unmap_cnt;
313 uint16_t fc_map_cnt;
314 uint16_t fc_npr_cnt;
315 uint16_t fc_unused_cnt;
316 struct serv_parm fc_sparam; /* buffer for our service parameters */
317
318 uint32_t fc_myDID; /* fibre channel S_ID */
319 uint32_t fc_prevDID; /* previous fibre channel S_ID */
320
321 int32_t stopped; /* HBA has not been restarted since last ERATT */
322 uint8_t fc_linkspeed; /* Link speed after last READ_LA */
323
324 uint32_t num_disc_nodes; /*in addition to hba_state */
325
326 uint32_t fc_nlp_cnt; /* outstanding NODELIST requests */
327 uint32_t fc_rscn_id_cnt; /* count of RSCNs payloads in list */
328 uint32_t fc_rscn_flush; /* flag use of fc_rscn_id_list */
329 struct lpfc_dmabuf *fc_rscn_id_list[FC_MAX_HOLD_RSCN];
330 struct lpfc_name fc_nodename; /* fc nodename */
331 struct lpfc_name fc_portname; /* fc portname */
332
333 struct lpfc_work_evt disc_timeout_evt;
334
335 struct timer_list fc_disctmo; /* Discovery rescue timer */
336 uint8_t fc_ns_retry; /* retries for fabric nameserver */
337 uint32_t fc_prli_sent; /* cntr for outstanding PRLIs */
338
339 spinlock_t work_port_lock;
340 uint32_t work_port_events; /* Timeout to be handled */
341 #define WORKER_DISC_TMO 0x1 /* vport: Discovery timeout */
342 #define WORKER_ELS_TMO 0x2 /* vport: ELS timeout */
343 #define WORKER_FDMI_TMO 0x4 /* vport: FDMI timeout */
344
345 #define WORKER_MBOX_TMO 0x100 /* hba: MBOX timeout */
346 #define WORKER_HB_TMO 0x200 /* hba: Heart beat timeout */
347 #define WORKER_FABRIC_BLOCK_TMO 0x400 /* hba: fabric block timeout */
348 #define WORKER_RAMP_DOWN_QUEUE 0x800 /* hba: Decrease Q depth */
349 #define WORKER_RAMP_UP_QUEUE 0x1000 /* hba: Increase Q depth */
350
351 struct timer_list fc_fdmitmo;
352 struct timer_list els_tmofunc;
353
354 int unreg_vpi_cmpl;
355
356 uint8_t load_flag;
357 #define FC_LOADING 0x1 /* HBA in process of loading drvr */
358 #define FC_UNLOADING 0x2 /* HBA in process of unloading drvr */
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_SCSI_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
390 struct 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
410 enum hba_temp_state {
411 HBA_NORMAL_TEMP,
412 HBA_OVER_TEMP
413 };
414
415 enum intr_type_t {
416 NONE = 0,
417 INTx,
418 MSI,
419 MSIX,
420 };
421
422 struct 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 #define LPFC_SLI3_BG_ENABLED 0x20
432 uint32_t iocb_cmd_size;
433 uint32_t iocb_rsp_size;
434
435 enum hba_state link_state;
436 uint32_t link_flag; /* link state flags */
437 #define LS_LOOPBACK_MODE 0x1 /* NPort is in Loopback mode */
438 /* This flag is set while issuing */
439 /* INIT_LINK mailbox command */
440 #define LS_NPIV_FAB_SUPPORTED 0x2 /* Fabric supports NPIV */
441 #define LS_IGNORE_ERATT 0x4 /* intr handler should ignore ERATT */
442
443 uint32_t hba_flag; /* hba generic flags */
444 #define HBA_ERATT_HANDLED 0x1 /* This flag is set when eratt handled */
445
446 struct lpfc_dmabuf slim2p;
447
448 MAILBOX_t *mbox;
449 uint32_t *inb_ha_copy;
450 uint32_t *inb_counter;
451 uint32_t inb_last_counter;
452 uint32_t ha_copy;
453 struct _PCB *pcb;
454 struct _IOCB *IOCBs;
455
456 struct lpfc_dmabuf hbqslimp;
457
458 uint16_t pci_cfg_value;
459
460 uint8_t fc_linkspeed; /* Link speed after last READ_LA */
461
462 uint32_t fc_eventTag; /* event tag for link attention */
463
464 /* These fields used to be binfo */
465 uint32_t fc_pref_DID; /* preferred D_ID */
466 uint8_t fc_pref_ALPA; /* preferred AL_PA */
467 uint32_t fc_edtov; /* E_D_TOV timer value */
468 uint32_t fc_arbtov; /* ARB_TOV timer value */
469 uint32_t fc_ratov; /* R_A_TOV timer value */
470 uint32_t fc_rttov; /* R_T_TOV timer value */
471 uint32_t fc_altov; /* AL_TOV timer value */
472 uint32_t fc_crtov; /* C_R_TOV timer value */
473 uint32_t fc_citov; /* C_I_TOV timer value */
474
475 struct serv_parm fc_fabparam; /* fabric service parameters buffer */
476 uint8_t alpa_map[128]; /* AL_PA map from READ_LA */
477
478 uint32_t lmt;
479
480 uint32_t fc_topology; /* link topology, from LINK INIT */
481
482 struct lpfc_stats fc_stat;
483
484 struct lpfc_nodelist fc_fcpnodev; /* nodelist entry for no device */
485 uint32_t nport_event_cnt; /* timestamp for nlplist entry */
486
487 uint8_t wwnn[8];
488 uint8_t wwpn[8];
489 uint32_t RandomData[7];
490
491 /* HBA Config Parameters */
492 uint32_t cfg_ack0;
493 uint32_t cfg_enable_npiv;
494 uint32_t cfg_topology;
495 uint32_t cfg_link_speed;
496 uint32_t cfg_cr_delay;
497 uint32_t cfg_cr_count;
498 uint32_t cfg_multi_ring_support;
499 uint32_t cfg_multi_ring_rctl;
500 uint32_t cfg_multi_ring_type;
501 uint32_t cfg_poll;
502 uint32_t cfg_poll_tmo;
503 uint32_t cfg_use_msi;
504 uint32_t cfg_sg_seg_cnt;
505 uint32_t cfg_prot_sg_seg_cnt;
506 uint32_t cfg_sg_dma_buf_size;
507 uint64_t cfg_soft_wwnn;
508 uint64_t cfg_soft_wwpn;
509 uint32_t cfg_hba_queue_depth;
510 uint32_t cfg_enable_hba_reset;
511 uint32_t cfg_enable_hba_heartbeat;
512 uint32_t cfg_enable_bg;
513
514 lpfc_vpd_t vpd; /* vital product data */
515
516 struct pci_dev *pcidev;
517 struct list_head work_list;
518 uint32_t work_ha; /* Host Attention Bits for WT */
519 uint32_t work_ha_mask; /* HA Bits owned by WT */
520 uint32_t work_hs; /* HS stored in case of ERRAT */
521 uint32_t work_status[2]; /* Extra status from SLIM */
522
523 wait_queue_head_t work_waitq;
524 struct task_struct *worker_thread;
525 unsigned long data_flags;
526
527 uint32_t hbq_in_use; /* HBQs in use flag */
528 struct list_head hbqbuf_in_list; /* in-fly hbq buffer list */
529 uint32_t hbq_count; /* Count of configured HBQs */
530 struct hbq_s hbqs[LPFC_MAX_HBQS]; /* local copy of hbq indicies */
531
532 unsigned long pci_bar0_map; /* Physical address for PCI BAR0 */
533 unsigned long pci_bar2_map; /* Physical address for PCI BAR2 */
534 void __iomem *slim_memmap_p; /* Kernel memory mapped address for
535 PCI BAR0 */
536 void __iomem *ctrl_regs_memmap_p;/* Kernel memory mapped address for
537 PCI BAR2 */
538
539 void __iomem *MBslimaddr; /* virtual address for mbox cmds */
540 void __iomem *HAregaddr; /* virtual address for host attn reg */
541 void __iomem *CAregaddr; /* virtual address for chip attn reg */
542 void __iomem *HSregaddr; /* virtual address for host status
543 reg */
544 void __iomem *HCregaddr; /* virtual address for host ctl reg */
545
546 struct lpfc_hgp __iomem *host_gp; /* Host side get/put pointers */
547 struct lpfc_pgp *port_gp;
548 uint32_t __iomem *hbq_put; /* Address in SLIM to HBQ put ptrs */
549 uint32_t *hbq_get; /* Host mem address of HBQ get ptrs */
550
551 int brd_no; /* FC board number */
552
553 char SerialNumber[32]; /* adapter Serial Number */
554 char OptionROMVersion[32]; /* adapter BIOS / Fcode version */
555 char ModelDesc[256]; /* Model Description */
556 char ModelName[80]; /* Model Name */
557 char ProgramType[256]; /* Program Type */
558 char Port[20]; /* Port No */
559 uint8_t vpd_flag; /* VPD data flag */
560
561 #define VPD_MODEL_DESC 0x1 /* valid vpd model description */
562 #define VPD_MODEL_NAME 0x2 /* valid vpd model name */
563 #define VPD_PROGRAM_TYPE 0x4 /* valid vpd program type */
564 #define VPD_PORT 0x8 /* valid vpd port data */
565 #define VPD_MASK 0xf /* mask for any vpd data */
566
567 uint8_t soft_wwn_enable;
568
569 struct timer_list fcp_poll_timer;
570 struct timer_list eratt_poll;
571
572 /*
573 * stat counters
574 */
575 uint64_t fc4InputRequests;
576 uint64_t fc4OutputRequests;
577 uint64_t fc4ControlRequests;
578 uint64_t bg_guard_err_cnt;
579 uint64_t bg_apptag_err_cnt;
580 uint64_t bg_reftag_err_cnt;
581
582 struct lpfc_sysfs_mbox sysfs_mbox;
583
584 /* fastpath list. */
585 spinlock_t scsi_buf_list_lock;
586 struct list_head lpfc_scsi_buf_list;
587 uint32_t total_scsi_bufs;
588 struct list_head lpfc_iocb_list;
589 uint32_t total_iocbq_bufs;
590 spinlock_t hbalock;
591
592 /* pci_mem_pools */
593 struct pci_pool *lpfc_scsi_dma_buf_pool;
594 struct pci_pool *lpfc_mbuf_pool;
595 struct pci_pool *lpfc_hbq_pool;
596 struct lpfc_dma_pool lpfc_mbuf_safety_pool;
597
598 mempool_t *mbox_mem_pool;
599 mempool_t *nlp_mem_pool;
600
601 struct fc_host_statistics link_stats;
602 enum intr_type_t intr_type;
603 uint32_t intr_mode;
604 #define LPFC_INTR_ERROR 0xFFFFFFFF
605 struct msix_entry msix_entries[LPFC_MSIX_VECTORS];
606
607 struct list_head port_list;
608 struct lpfc_vport *pport; /* physical lpfc_vport pointer */
609 uint16_t max_vpi; /* Maximum virtual nports */
610 #define LPFC_MAX_VPI 0xFFFF /* Max number of VPI supported */
611 unsigned long *vpi_bmask; /* vpi allocation table */
612
613 /* Data structure used by fabric iocb scheduler */
614 struct list_head fabric_iocb_list;
615 atomic_t fabric_iocb_count;
616 struct timer_list fabric_block_timer;
617 unsigned long bit_flags;
618 #define FABRIC_COMANDS_BLOCKED 0
619 atomic_t num_rsrc_err;
620 atomic_t num_cmd_success;
621 unsigned long last_rsrc_error_time;
622 unsigned long last_ramp_down_time;
623 unsigned long last_ramp_up_time;
624 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
625 struct dentry *hba_debugfs_root;
626 atomic_t debugfs_vport_count;
627 struct dentry *debug_hbqinfo;
628 struct dentry *debug_dumpHostSlim;
629 struct dentry *debug_dumpHBASlim;
630 struct dentry *debug_dumpData; /* BlockGuard BPL*/
631 struct dentry *debug_dumpDif; /* BlockGuard BPL*/
632 struct dentry *debug_slow_ring_trc;
633 struct lpfc_debugfs_trc *slow_ring_trc;
634 atomic_t slow_ring_trc_cnt;
635 #endif
636
637 /* Used for deferred freeing of ELS data buffers */
638 struct list_head elsbuf;
639 int elsbuf_cnt;
640 int elsbuf_prev_cnt;
641
642 uint8_t temp_sensor_support;
643 /* Fields used for heart beat. */
644 unsigned long last_completion_time;
645 struct timer_list hb_tmofunc;
646 uint8_t hb_outstanding;
647 enum hba_temp_state over_temp_state;
648 /* ndlp reference management */
649 spinlock_t ndlp_lock;
650 /*
651 * Following bit will be set for all buffer tags which are not
652 * associated with any HBQ.
653 */
654 #define QUE_BUFTAG_BIT (1<<31)
655 uint32_t buffer_tag_count;
656 int wait_4_mlo_maint_flg;
657 wait_queue_head_t wait_4_mlo_m_q;
658 /* data structure used for latency data collection */
659 #define LPFC_NO_BUCKET 0
660 #define LPFC_LINEAR_BUCKET 1
661 #define LPFC_POWER2_BUCKET 2
662 uint8_t bucket_type;
663 uint32_t bucket_base;
664 uint32_t bucket_step;
665
666 /* Maximum number of events that can be outstanding at any time*/
667 #define LPFC_MAX_EVT_COUNT 512
668 atomic_t fast_event_count;
669 };
670
671 static inline struct Scsi_Host *
lpfc_shost_from_vport(struct lpfc_vport * vport)672 lpfc_shost_from_vport(struct lpfc_vport *vport)
673 {
674 return container_of((void *) vport, struct Scsi_Host, hostdata[0]);
675 }
676
677 static inline void
lpfc_set_loopback_flag(struct lpfc_hba * phba)678 lpfc_set_loopback_flag(struct lpfc_hba *phba)
679 {
680 if (phba->cfg_topology == FLAGS_LOCAL_LB)
681 phba->link_flag |= LS_LOOPBACK_MODE;
682 else
683 phba->link_flag &= ~LS_LOOPBACK_MODE;
684 }
685
686 static inline int
lpfc_is_link_up(struct lpfc_hba * phba)687 lpfc_is_link_up(struct lpfc_hba *phba)
688 {
689 return phba->link_state == LPFC_LINK_UP ||
690 phba->link_state == LPFC_CLEAR_LA ||
691 phba->link_state == LPFC_HBA_READY;
692 }
693
694 static inline void
lpfc_worker_wake_up(struct lpfc_hba * phba)695 lpfc_worker_wake_up(struct lpfc_hba *phba)
696 {
697 /* Set the lpfc data pending flag */
698 set_bit(LPFC_DATA_READY, &phba->data_flags);
699
700 /* Wake up worker thread */
701 wake_up(&phba->work_waitq);
702 return;
703 }
704
705 static inline void
lpfc_sli_read_hs(struct lpfc_hba * phba)706 lpfc_sli_read_hs(struct lpfc_hba *phba)
707 {
708 /*
709 * There was a link/board error. Read the status register to retrieve
710 * the error event and process it.
711 */
712 phba->sli.slistat.err_attn_event++;
713
714 /* Save status info */
715 phba->work_hs = readl(phba->HSregaddr);
716 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
717 phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
718
719 /* Clear chip Host Attention error bit */
720 writel(HA_ERATT, phba->HAregaddr);
721 readl(phba->HAregaddr); /* flush */
722 phba->pport->stopped = 1;
723
724 return;
725 }
726
727