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. *
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;
27 #define LPFC_MAX_TARGET 256 /* max number of targets supported */
28 #define LPFC_MAX_DISC_THREADS 64 /* max outstanding discovery els
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 */
37 /* Define macros for 64 bit support */
38 #define putPaddrLow(addr) ((uint32_t) (0xffffffff & (u64)(addr)))
39 #define putPaddrHigh(addr) ((uint32_t) (0xffffffff & (((u64)(addr))>>32)))
40 #define getPaddr(high, low) ((dma_addr_t)( \
41 (( (u64)(high)<<16 ) << 16)|( (u64)(low))))
42 /* Provide maximum configuration definitions. */
43 #define LPFC_DRVR_TIMEOUT 16 /* driver iocb timeout value in sec */
44 #define FC_MAX_ADPTMSG 64
48 enum lpfc_polling_flags {
49 ENABLE_FCP_RING_POLLING = 0x1,
50 DISABLE_FCP_RING_INT = 0x2
53 /* Provide DMA memory definitions the driver uses per port instance. */
55 struct list_head list;
56 void *virt; /* virtual address ptr */
57 dma_addr_t phys; /* mapped address */
60 struct lpfc_dma_pool {
61 struct lpfc_dmabuf *elements;
63 uint32_t current_count;
67 struct lpfc_dmabuf dbuf;
71 /* Priority bit. Set value to exceed low water mark in lpfc_mem. */
75 /****************************************************************************/
76 /* Device VPD save area */
77 /****************************************************************************/
78 typedef struct lpfc_vpd {
79 uint32_t status; /* vpd status value */
80 uint32_t length; /* number of bytes actually returned */
82 uint32_t rsvd1; /* Revision numbers */
96 uint8_t sli1FwName[16];
98 uint8_t sli2FwName[16];
102 struct lpfc_scsi_buf;
109 /* Statistics for ELS commands */
111 uint32_t elsRetryExceeded;
112 uint32_t elsXmitRetry;
113 uint32_t elsDelayRetry;
115 uint32_t elsRcvFrame;
119 uint32_t elsRcvFARPR;
120 uint32_t elsRcvFLOGI;
121 uint32_t elsRcvPLOGI;
122 uint32_t elsRcvADISC;
123 uint32_t elsRcvPDISC;
131 uint32_t elsXmitFLOGI;
132 uint32_t elsXmitPLOGI;
133 uint32_t elsXmitPRLI;
134 uint32_t elsXmitADISC;
135 uint32_t elsXmitLOGO;
137 uint32_t elsXmitRNID;
138 uint32_t elsXmitFARP;
139 uint32_t elsXmitFARPR;
141 uint32_t elsXmitLSRJT;
143 uint32_t frameRcvBcast;
144 uint32_t frameRcvMulti;
145 uint32_t strayXmitCmpl;
146 uint32_t frameXmitDelay;
151 uint32_t LinkMultiEvent;
156 uint32_t fcpRemoteStop;
158 uint32_t fcpPortBusy;
160 uint32_t fcpLocalErr;
163 enum sysfs_mbox_state {
169 struct lpfc_sysfs_mbox {
170 enum sysfs_mbox_state state;
172 struct lpfcMboxq * mbox;
177 enum discovery_state {
178 LPFC_STATE_UNKNOWN = 0, /* HBA state is unknown */
179 LPFC_LOCAL_CFG_LINK = 6, /* local NPORT Id configured */
180 LPFC_FLOGI = 7, /* FLOGI sent to Fabric */
181 LPFC_FABRIC_CFG_LINK = 8, /* Fabric assigned NPORT Id
183 LPFC_NS_REG = 9, /* Register with NameServer */
184 LPFC_NS_QRY = 10, /* Query NameServer for NPort ID list */
185 LPFC_BUILD_DISC_LIST = 11, /* Build ADISC and PLOGI lists for
186 * device authentication / discovery */
187 LPFC_DISC_AUTH = 12, /* Processing ADISC list */
188 LPFC_VPORT_READY = 32,
192 LPFC_LINK_UNKNOWN = 0, /* HBA state is unknown */
193 LPFC_WARM_START = 1, /* HBA state after selective reset */
194 LPFC_INIT_START = 2, /* Initial state after board reset */
195 LPFC_INIT_MBX_CMDS = 3, /* Initialize HBA with mbox commands */
196 LPFC_LINK_DOWN = 4, /* HBA initialized, link is down */
197 LPFC_LINK_UP = 5, /* Link is up - issue READ_LA */
198 LPFC_CLEAR_LA = 13, /* authentication cmplt - issue
204 struct list_head listentry;
205 struct lpfc_hba *phba;
207 #define LPFC_PHYSICAL_PORT 1
208 #define LPFC_NPIV_PORT 2
209 #define LPFC_FABRIC_PORT 3
210 enum discovery_state port_state;
213 uint32_t fc_flag; /* FC flags */
214 /* Several of these flags are HBA centric and should be moved to
215 * phba->link_flag (e.g. FC_PTP, FC_PUBLIC_LOOP)
217 #define FC_PT2PT 0x1 /* pt2pt with no fabric */
218 #define FC_PT2PT_PLOGI 0x2 /* pt2pt initiate PLOGI */
219 #define FC_DISC_TMO 0x4 /* Discovery timer running */
220 #define FC_PUBLIC_LOOP 0x8 /* Public loop */
221 #define FC_LBIT 0x10 /* LOGIN bit in loopinit set */
222 #define FC_RSCN_MODE 0x20 /* RSCN cmd rcv'ed */
223 #define FC_NLP_MORE 0x40 /* More node to process in node tbl */
224 #define FC_OFFLINE_MODE 0x80 /* Interface is offline for diag */
225 #define FC_FABRIC 0x100 /* We are fabric attached */
226 #define FC_ESTABLISH_LINK 0x200 /* Reestablish Link */
227 #define FC_RSCN_DISCOVERY 0x400 /* Authenticate all devices after RSCN*/
228 #define FC_SCSI_SCAN_TMO 0x4000 /* scsi scan timer running */
229 #define FC_ABORT_DISCOVERY 0x8000 /* we want to abort discovery */
230 #define FC_NDISC_ACTIVE 0x10000 /* NPort discovery active */
231 #define FC_BYPASSED_MODE 0x20000 /* NPort is in bypassed mode */
233 struct list_head fc_nodes;
235 /* Keep counters for the number of entries in each list. */
236 uint16_t fc_plogi_cnt;
237 uint16_t fc_adisc_cnt;
238 uint16_t fc_reglogin_cnt;
239 uint16_t fc_prli_cnt;
240 uint16_t fc_unmap_cnt;
243 uint16_t fc_unused_cnt;
244 struct serv_parm fc_sparam; /* buffer for our service parameters */
246 uint32_t fc_myDID; /* fibre channel S_ID */
247 uint32_t fc_prevDID; /* previous fibre channel S_ID */
249 int32_t stopped; /* HBA has not been restarted since last ERATT */
250 uint8_t fc_linkspeed; /* Link speed after last READ_LA */
252 uint32_t num_disc_nodes; /*in addition to hba_state */
254 uint32_t fc_nlp_cnt; /* outstanding NODELIST requests */
255 uint32_t fc_rscn_id_cnt; /* count of RSCNs payloads in list */
256 struct lpfc_dmabuf *fc_rscn_id_list[FC_MAX_HOLD_RSCN];
257 struct lpfc_name fc_nodename; /* fc nodename */
258 struct lpfc_name fc_portname; /* fc portname */
260 struct lpfc_work_evt disc_timeout_evt;
262 struct timer_list fc_disctmo; /* Discovery rescue timer */
263 uint8_t fc_ns_retry; /* retries for fabric nameserver */
264 uint32_t fc_prli_sent; /* cntr for outstanding PRLIs */
266 spinlock_t work_port_lock;
267 uint32_t work_port_events; /* Timeout to be handled */
268 #define WORKER_DISC_TMO 0x1 /* Discovery timeout */
269 #define WORKER_ELS_TMO 0x2 /* ELS timeout */
270 #define WORKER_MBOX_TMO 0x4 /* MBOX timeout */
271 #define WORKER_FDMI_TMO 0x8 /* FDMI timeout */
273 struct timer_list fc_fdmitmo;
274 struct timer_list els_tmofunc;
279 #define FC_LOADING 0x1 /* HBA in process of loading drvr */
280 #define FC_UNLOADING 0x2 /* HBA in process of unloading drvr */
286 uint16_t entry_count; /* Current number of HBQ slots */
287 uint32_t next_hbqPutIdx; /* Index to next HBQ slot to use */
288 uint32_t hbqPutIdx; /* HBQ slot to use */
289 uint32_t local_hbqGetIdx; /* Local copy of Get index from Port */
296 uint32_t sli_rev; /* SLI2 or SLI3 */
297 uint32_t sli3_options; /* Mask of enabled SLI3 options */
298 #define LPFC_SLI3_ENABLED 0x01
299 #define LPFC_SLI3_HBQ_ENABLED 0x02
300 #define LPFC_SLI3_INB_ENABLED 0x04
301 uint32_t iocb_cmd_size;
302 uint32_t iocb_rsp_size;
304 enum hba_state link_state;
305 uint32_t link_flag; /* link state flags */
306 #define LS_LOOPBACK_MODE 0x40000 /* NPort is in Loopback mode */
307 /* This flag is set while issuing */
308 /* INIT_LINK mailbox command */
309 #define LS_IGNORE_ERATT 0x80000 /* intr handler should ignore ERATT */
311 struct lpfc_sli2_slim *slim2p;
312 struct lpfc_dmabuf hbqslimp;
314 dma_addr_t slim2p_mapping;
317 uint16_t pci_cfg_value;
320 uint8_t fc_linkspeed; /* Link speed after last READ_LA */
322 uint32_t fc_eventTag; /* event tag for link attention */
325 struct timer_list fc_estabtmo; /* link establishment timer */
326 /* These fields used to be binfo */
327 uint32_t fc_pref_DID; /* preferred D_ID */
328 uint8_t fc_pref_ALPA; /* preferred AL_PA */
329 uint32_t fc_edtov; /* E_D_TOV timer value */
330 uint32_t fc_arbtov; /* ARB_TOV timer value */
331 uint32_t fc_ratov; /* R_A_TOV timer value */
332 uint32_t fc_rttov; /* R_T_TOV timer value */
333 uint32_t fc_altov; /* AL_TOV timer value */
334 uint32_t fc_crtov; /* C_R_TOV timer value */
335 uint32_t fc_citov; /* C_I_TOV timer value */
337 struct serv_parm fc_fabparam; /* fabric service parameters buffer */
338 uint8_t alpa_map[128]; /* AL_PA map from READ_LA */
342 uint32_t fc_topology; /* link topology, from LINK INIT */
344 struct lpfc_stats fc_stat;
346 struct lpfc_nodelist fc_fcpnodev; /* nodelist entry for no device */
347 uint32_t nport_event_cnt; /* timestamp for nlplist entry */
351 uint32_t RandomData[7];
353 uint32_t cfg_log_verbose;
354 uint32_t cfg_lun_queue_depth;
355 uint32_t cfg_nodev_tmo;
356 uint32_t cfg_devloss_tmo;
357 uint32_t cfg_hba_queue_depth;
358 uint32_t cfg_fcp_class;
359 uint32_t cfg_use_adisc;
361 uint32_t cfg_topology;
362 uint32_t cfg_scan_down;
363 uint32_t cfg_link_speed;
364 uint32_t cfg_cr_delay;
365 uint32_t cfg_cr_count;
366 uint32_t cfg_multi_ring_support;
367 uint32_t cfg_multi_ring_rctl;
368 uint32_t cfg_multi_ring_type;
369 uint32_t cfg_fdmi_on;
370 uint32_t cfg_discovery_threads;
371 uint32_t cfg_max_luns;
373 uint32_t cfg_poll_tmo;
374 uint32_t cfg_use_msi;
375 uint32_t cfg_sg_seg_cnt;
376 uint32_t cfg_sg_dma_buf_size;
377 uint64_t cfg_soft_wwnn;
378 uint64_t cfg_soft_wwpn;
380 uint32_t dev_loss_tmo_changed;
382 lpfc_vpd_t vpd; /* vital product data */
384 struct pci_dev *pcidev;
385 struct list_head work_list;
386 uint32_t work_ha; /* Host Attention Bits for WT */
387 uint32_t work_ha_mask; /* HA Bits owned by WT */
388 uint32_t work_hs; /* HS stored in case of ERRAT */
389 uint32_t work_status[2]; /* Extra status from SLIM */
391 wait_queue_head_t *work_wait;
392 struct task_struct *worker_thread;
394 struct hbq_dmabuf *hbq_buffer_pool;
395 uint32_t hbq_buffer_count;
396 uint32_t hbq_buff_count; /* Current hbq buffers */
397 uint32_t hbq_count; /* Count of configured HBQs */
398 struct hbq_s hbqs[MAX_HBQS]; /* local copy of hbq indicies */
400 unsigned long pci_bar0_map; /* Physical address for PCI BAR0 */
401 unsigned long pci_bar2_map; /* Physical address for PCI BAR2 */
402 void __iomem *slim_memmap_p; /* Kernel memory mapped address for
404 void __iomem *ctrl_regs_memmap_p;/* Kernel memory mapped address for
407 void __iomem *MBslimaddr; /* virtual address for mbox cmds */
408 void __iomem *HAregaddr; /* virtual address for host attn reg */
409 void __iomem *CAregaddr; /* virtual address for chip attn reg */
410 void __iomem *HSregaddr; /* virtual address for host status
412 void __iomem *HCregaddr; /* virtual address for host ctl reg */
414 struct lpfc_hgp __iomem *host_gp; /* Host side get/put pointers */
415 uint32_t __iomem *hbq_put; /* Address in SLIM to HBQ put ptrs */
416 uint32_t __iomem *hbq_get; /* Address in SLIM to HBQ get ptrs */
418 int brd_no; /* FC board number */
420 char SerialNumber[32]; /* adapter Serial Number */
421 char OptionROMVersion[32]; /* adapter BIOS / Fcode version */
422 char ModelDesc[256]; /* Model Description */
423 char ModelName[80]; /* Model Name */
424 char ProgramType[256]; /* Program Type */
425 char Port[20]; /* Port No */
426 uint8_t vpd_flag; /* VPD data flag */
428 #define VPD_MODEL_DESC 0x1 /* valid vpd model description */
429 #define VPD_MODEL_NAME 0x2 /* valid vpd model name */
430 #define VPD_PROGRAM_TYPE 0x4 /* valid vpd program type */
431 #define VPD_PORT 0x8 /* valid vpd port data */
432 #define VPD_MASK 0xf /* mask for any vpd data */
434 uint8_t soft_wwn_enable;
436 struct timer_list fcp_poll_timer;
441 uint64_t fc4InputRequests;
442 uint64_t fc4OutputRequests;
443 uint64_t fc4ControlRequests;
445 struct lpfc_sysfs_mbox sysfs_mbox;
448 spinlock_t scsi_buf_list_lock;
449 struct list_head lpfc_scsi_buf_list;
450 uint32_t total_scsi_bufs;
451 struct list_head lpfc_iocb_list;
452 uint32_t total_iocbq_bufs;
456 struct pci_pool *lpfc_scsi_dma_buf_pool;
457 struct pci_pool *lpfc_mbuf_pool;
458 struct pci_pool *lpfc_hbq_pool;
459 struct lpfc_dma_pool lpfc_mbuf_safety_pool;
461 mempool_t *mbox_mem_pool;
462 mempool_t *nlp_mem_pool;
464 struct fc_host_statistics link_stats;
465 struct list_head port_list;
466 struct lpfc_vport *pport; /* physical lpfc_vport pointer */
469 static inline struct Scsi_Host *
470 lpfc_shost_from_vport(struct lpfc_vport *vport)
472 return container_of((void *) vport, struct Scsi_Host, hostdata[0]);
476 lpfc_set_loopback_flag(struct lpfc_hba *phba)
478 if (phba->cfg_topology == FLAGS_LOCAL_LB)
479 phba->link_flag |= LS_LOOPBACK_MODE;
481 phba->link_flag &= ~LS_LOOPBACK_MODE;
485 lpfc_is_link_up(struct lpfc_hba *phba)
487 return phba->link_state == LPFC_LINK_UP ||
488 phba->link_state == LPFC_CLEAR_LA;
493 #define FC_REG_DUMP_EVENT 0x10 /* Register for Dump events */