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. *
7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
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 *******************************************************************/
22 #include <scsi/scsi_host.h>
24 struct lpfc_sli2_slim;
26 #define LPFC_MAX_TARGET 4096 /* max number of targets supported */
27 #define LPFC_MAX_DISC_THREADS 64 /* max outstanding discovery els
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
43 #define LPFC_MAX_BUCKET_COUNT 20 /* Maximum no. of buckets for stat data
46 * Following time intervals are used of adjusting SCSI device
47 * queue depths when there are driver resource error or Firmware
50 #define QUEUE_RAMP_DOWN_INTERVAL (1 * HZ) /* 1 Second */
51 #define QUEUE_RAMP_UP_INTERVAL (300 * HZ) /* 5 minutes */
53 /* Number of exchanges reserved for discovery to complete */
54 #define LPFC_DISC_IOCB_BUFF_COUNT 20
56 #define LPFC_HB_MBOX_INTERVAL 5 /* Heart beat interval in seconds. */
57 #define LPFC_HB_MBOX_TIMEOUT 30 /* Heart beat timeout in seconds. */
59 /* Error Attention event polling interval */
60 #define LPFC_ERATT_POLL_INTERVAL 5 /* EATT poll interval in seconds */
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
73 /* Number of MSI-X vectors the driver uses */
74 #define LPFC_MSIX_VECTORS 2
76 /* lpfc wait event data ready flag */
77 #define LPFC_DATA_READY (1<<0)
79 enum lpfc_polling_flags {
80 ENABLE_FCP_RING_POLLING = 0x1,
81 DISABLE_FCP_RING_INT = 0x2
84 /* Provide DMA memory definitions the driver uses per port instance. */
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 */
92 struct lpfc_dma_pool {
93 struct lpfc_dmabuf *elements;
95 uint32_t current_count;
99 struct lpfc_dmabuf dbuf;
104 /* Priority bit. Set value to exceed low water mark in lpfc_mem. */
105 #define MEM_PRI 0x100
108 /****************************************************************************/
109 /* Device VPD save area */
110 /****************************************************************************/
111 typedef struct lpfc_vpd {
112 uint32_t status; /* vpd status value */
113 uint32_t length; /* number of bytes actually returned */
115 uint32_t rsvd1; /* Revision numbers */
123 uint8_t feaLevelHigh;
125 uint32_t postKernRev;
127 uint8_t opFwName[16];
129 uint8_t sli1FwName[16];
131 uint8_t sli2FwName[16];
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 */
158 struct lpfc_scsi_buf;
165 /* Statistics for ELS commands */
167 uint32_t elsRetryExceeded;
168 uint32_t elsXmitRetry;
169 uint32_t elsDelayRetry;
171 uint32_t elsRcvFrame;
175 uint32_t elsRcvFARPR;
176 uint32_t elsRcvFLOGI;
177 uint32_t elsRcvPLOGI;
178 uint32_t elsRcvADISC;
179 uint32_t elsRcvPDISC;
187 uint32_t elsXmitFLOGI;
188 uint32_t elsXmitFDISC;
189 uint32_t elsXmitPLOGI;
190 uint32_t elsXmitPRLI;
191 uint32_t elsXmitADISC;
192 uint32_t elsXmitLOGO;
194 uint32_t elsXmitRNID;
195 uint32_t elsXmitFARP;
196 uint32_t elsXmitFARPR;
198 uint32_t elsXmitLSRJT;
200 uint32_t frameRcvBcast;
201 uint32_t frameRcvMulti;
202 uint32_t strayXmitCmpl;
203 uint32_t frameXmitDelay;
208 uint32_t LinkMultiEvent;
213 uint32_t fcpRemoteStop;
215 uint32_t fcpPortBusy;
217 uint32_t fcpLocalErr;
220 enum sysfs_mbox_state {
226 struct lpfc_sysfs_mbox {
227 enum sysfs_mbox_state state;
229 struct lpfcMboxq * mbox;
235 enum 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
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,
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
265 struct list_head listentry;
266 struct lpfc_hba *phba;
268 #define LPFC_PHYSICAL_PORT 1
269 #define LPFC_NPIV_PORT 2
270 #define LPFC_FABRIC_PORT 3
271 enum discovery_state port_state;
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)
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 */
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 */
303 struct list_head fc_nodes;
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;
313 uint16_t fc_unused_cnt;
314 struct serv_parm fc_sparam; /* buffer for our service parameters */
316 uint32_t fc_myDID; /* fibre channel S_ID */
317 uint32_t fc_prevDID; /* previous fibre channel S_ID */
319 int32_t stopped; /* HBA has not been restarted since last ERATT */
320 uint8_t fc_linkspeed; /* Link speed after last READ_LA */
322 uint32_t num_disc_nodes; /*in addition to hba_state */
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 */
331 struct lpfc_work_evt disc_timeout_evt;
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 */
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 */
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 */
349 struct timer_list fc_fdmitmo;
350 struct timer_list els_tmofunc;
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 */
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;
375 uint32_t dev_loss_tmo_changed;
377 struct fc_vport *fc_vport;
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;
386 uint8_t stat_data_enabled;
387 uint8_t stat_data_blocked;
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 *);
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
410 enum hba_temp_state {
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;
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 */
442 uint32_t hba_flag; /* hba generic flags */
443 #define HBA_ERATT_HANDLED 0x1 /* This flag is set when eratt handled */
445 struct lpfc_dmabuf slim2p;
448 uint32_t *inb_ha_copy;
449 uint32_t *inb_counter;
450 uint32_t inb_last_counter;
455 struct lpfc_dmabuf hbqslimp;
457 uint16_t pci_cfg_value;
459 uint8_t fc_linkspeed; /* Link speed after last READ_LA */
461 uint32_t fc_eventTag; /* event tag for link attention */
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 */
474 struct serv_parm fc_fabparam; /* fabric service parameters buffer */
475 uint8_t alpa_map[128]; /* AL_PA map from READ_LA */
479 uint32_t fc_topology; /* link topology, from LINK INIT */
481 struct lpfc_stats fc_stat;
483 struct lpfc_nodelist fc_fcpnodev; /* nodelist entry for no device */
484 uint32_t nport_event_cnt; /* timestamp for nlplist entry */
488 uint32_t RandomData[7];
490 /* HBA Config Parameters */
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;
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;
511 lpfc_vpd_t vpd; /* vital product data */
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 */
520 wait_queue_head_t work_waitq;
521 struct task_struct *worker_thread;
522 unsigned long data_flags;
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 */
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
533 void __iomem *ctrl_regs_memmap_p;/* Kernel memory mapped address for
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
541 void __iomem *HCregaddr; /* virtual address for host ctl reg */
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 */
548 int brd_no; /* FC board number */
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 */
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 */
564 uint8_t soft_wwn_enable;
566 struct timer_list fcp_poll_timer;
567 struct timer_list eratt_poll;
572 uint64_t fc4InputRequests;
573 uint64_t fc4OutputRequests;
574 uint64_t fc4ControlRequests;
576 struct lpfc_sysfs_mbox sysfs_mbox;
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;
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;
592 mempool_t *mbox_mem_pool;
593 mempool_t *nlp_mem_pool;
595 struct fc_host_statistics link_stats;
596 enum intr_type_t intr_type;
597 struct msix_entry msix_entries[LPFC_MSIX_VECTORS];
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 */
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;
627 /* Used for deferred freeing of ELS data buffers */
628 struct list_head elsbuf;
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;
641 * Following bit will be set for all buffer tags which are not
642 * associated with any HBQ.
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
653 uint32_t bucket_base;
654 uint32_t bucket_step;
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;
661 static inline struct Scsi_Host *
662 lpfc_shost_from_vport(struct lpfc_vport *vport)
664 return container_of((void *) vport, struct Scsi_Host, hostdata[0]);
668 lpfc_set_loopback_flag(struct lpfc_hba *phba)
670 if (phba->cfg_topology == FLAGS_LOCAL_LB)
671 phba->link_flag |= LS_LOOPBACK_MODE;
673 phba->link_flag &= ~LS_LOOPBACK_MODE;
677 lpfc_is_link_up(struct lpfc_hba *phba)
679 return phba->link_state == LPFC_LINK_UP ||
680 phba->link_state == LPFC_CLEAR_LA ||
681 phba->link_state == LPFC_HBA_READY;
685 lpfc_worker_wake_up(struct lpfc_hba *phba)
687 /* Set the lpfc data pending flag */
688 set_bit(LPFC_DATA_READY, &phba->data_flags);
690 /* Wake up worker thread */
691 wake_up(&phba->work_waitq);
696 lpfc_sli_read_hs(struct lpfc_hba *phba)
699 * There was a link/board error. Read the status register to retrieve
700 * the error event and process it.
702 phba->sli.slistat.err_attn_event++;
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);
709 /* Clear chip Host Attention error bit */
710 writel(HA_ERATT, phba->HAregaddr);
711 readl(phba->HAregaddr); /* flush */
712 phba->pport->stopped = 1;