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;
66 /* Priority bit. Set value to exceed low water mark in lpfc_mem. */
70 /****************************************************************************/
71 /* Device VPD save area */
72 /****************************************************************************/
73 typedef struct lpfc_vpd {
74 uint32_t status; /* vpd status value */
75 uint32_t length; /* number of bytes actually returned */
77 uint32_t rsvd1; /* Revision numbers */
91 uint8_t sli1FwName[16];
93 uint8_t sli2FwName[16];
104 /* Statistics for ELS commands */
106 uint32_t elsRetryExceeded;
107 uint32_t elsXmitRetry;
108 uint32_t elsDelayRetry;
110 uint32_t elsRcvFrame;
114 uint32_t elsRcvFARPR;
115 uint32_t elsRcvFLOGI;
116 uint32_t elsRcvPLOGI;
117 uint32_t elsRcvADISC;
118 uint32_t elsRcvPDISC;
126 uint32_t elsXmitFLOGI;
127 uint32_t elsXmitPLOGI;
128 uint32_t elsXmitPRLI;
129 uint32_t elsXmitADISC;
130 uint32_t elsXmitLOGO;
132 uint32_t elsXmitRNID;
133 uint32_t elsXmitFARP;
134 uint32_t elsXmitFARPR;
136 uint32_t elsXmitLSRJT;
138 uint32_t frameRcvBcast;
139 uint32_t frameRcvMulti;
140 uint32_t strayXmitCmpl;
141 uint32_t frameXmitDelay;
146 uint32_t LinkMultiEvent;
151 uint32_t fcpRemoteStop;
153 uint32_t fcpPortBusy;
155 uint32_t fcpLocalErr;
158 enum sysfs_mbox_state {
164 struct lpfc_sysfs_mbox {
165 enum sysfs_mbox_state state;
167 struct lpfcMboxq * mbox;
172 enum discovery_state {
173 LPFC_STATE_UNKNOWN = 0, /* HBA state is unknown */
174 LPFC_LOCAL_CFG_LINK = 6, /* local NPORT Id configured */
175 LPFC_FLOGI = 7, /* FLOGI sent to Fabric */
176 LPFC_FABRIC_CFG_LINK = 8, /* Fabric assigned NPORT Id
178 LPFC_NS_REG = 9, /* Register with NameServer */
179 LPFC_NS_QRY = 10, /* Query NameServer for NPort ID list */
180 LPFC_BUILD_DISC_LIST = 11, /* Build ADISC and PLOGI lists for
181 * device authentication / discovery */
182 LPFC_DISC_AUTH = 12, /* Processing ADISC list */
183 LPFC_VPORT_READY = 32,
187 LPFC_LINK_UNKNOWN = 0, /* HBA state is unknown */
188 LPFC_WARM_START = 1, /* HBA state after selective reset */
189 LPFC_INIT_START = 2, /* Initial state after board reset */
190 LPFC_INIT_MBX_CMDS = 3, /* Initialize HBA with mbox commands */
191 LPFC_LINK_DOWN = 4, /* HBA initialized, link is down */
192 LPFC_LINK_UP = 5, /* Link is up - issue READ_LA */
193 LPFC_CLEAR_LA = 13, /* authentication cmplt - issue
199 struct list_head listentry;
200 struct lpfc_hba *phba;
202 #define LPFC_PHYSICAL_PORT 1
203 #define LPFC_NPIV_PORT 2
204 #define LPFC_FABRIC_PORT 3
205 enum discovery_state port_state;
208 uint32_t fc_flag; /* FC flags */
209 /* Several of these flags are HBA centric and should be moved to
210 * phba->link_flag (e.g. FC_PTP, FC_PUBLIC_LOOP)
212 #define FC_PT2PT 0x1 /* pt2pt with no fabric */
213 #define FC_PT2PT_PLOGI 0x2 /* pt2pt initiate PLOGI */
214 #define FC_DISC_TMO 0x4 /* Discovery timer running */
215 #define FC_PUBLIC_LOOP 0x8 /* Public loop */
216 #define FC_LBIT 0x10 /* LOGIN bit in loopinit set */
217 #define FC_RSCN_MODE 0x20 /* RSCN cmd rcv'ed */
218 #define FC_NLP_MORE 0x40 /* More node to process in node tbl */
219 #define FC_OFFLINE_MODE 0x80 /* Interface is offline for diag */
220 #define FC_FABRIC 0x100 /* We are fabric attached */
221 #define FC_ESTABLISH_LINK 0x200 /* Reestablish Link */
222 #define FC_RSCN_DISCOVERY 0x400 /* Authenticate all devices after RSCN*/
223 #define FC_SCSI_SCAN_TMO 0x4000 /* scsi scan timer running */
224 #define FC_ABORT_DISCOVERY 0x8000 /* we want to abort discovery */
225 #define FC_NDISC_ACTIVE 0x10000 /* NPort discovery active */
226 #define FC_BYPASSED_MODE 0x20000 /* NPort is in bypassed mode */
228 struct list_head fc_nodes;
230 /* Keep counters for the number of entries in each list. */
231 uint16_t fc_plogi_cnt;
232 uint16_t fc_adisc_cnt;
233 uint16_t fc_reglogin_cnt;
234 uint16_t fc_prli_cnt;
235 uint16_t fc_unmap_cnt;
238 uint16_t fc_unused_cnt;
239 struct serv_parm fc_sparam; /* buffer for our service parameters */
241 uint32_t fc_myDID; /* fibre channel S_ID */
242 uint32_t fc_prevDID; /* previous fibre channel S_ID */
244 int32_t stopped; /* HBA has not been restarted since last ERATT */
245 uint8_t fc_linkspeed; /* Link speed after last READ_LA */
247 uint32_t num_disc_nodes; /*in addition to hba_state */
249 uint32_t fc_nlp_cnt; /* outstanding NODELIST requests */
250 uint32_t fc_rscn_id_cnt; /* count of RSCNs payloads in list */
251 struct lpfc_dmabuf *fc_rscn_id_list[FC_MAX_HOLD_RSCN];
252 struct lpfc_name fc_nodename; /* fc nodename */
253 struct lpfc_name fc_portname; /* fc portname */
255 struct lpfc_work_evt disc_timeout_evt;
257 struct timer_list fc_disctmo; /* Discovery rescue timer */
258 uint8_t fc_ns_retry; /* retries for fabric nameserver */
259 uint32_t fc_prli_sent; /* cntr for outstanding PRLIs */
261 spinlock_t work_port_lock;
262 uint32_t work_port_events; /* Timeout to be handled */
263 #define WORKER_DISC_TMO 0x1 /* Discovery timeout */
264 #define WORKER_ELS_TMO 0x2 /* ELS timeout */
265 #define WORKER_MBOX_TMO 0x4 /* MBOX timeout */
266 #define WORKER_FDMI_TMO 0x8 /* FDMI timeout */
268 struct timer_list fc_fdmitmo;
269 struct timer_list els_tmofunc;
274 #define FC_LOADING 0x1 /* HBA in process of loading drvr */
275 #define FC_UNLOADING 0x2 /* HBA in process of unloading drvr */
282 enum hba_state link_state;
283 uint32_t link_flag; /* link state flags */
284 #define LS_LOOPBACK_MODE 0x40000 /* NPort is in Loopback mode */
285 /* This flag is set while issuing */
286 /* INIT_LINK mailbox command */
287 #define LS_IGNORE_ERATT 0x80000 /* intr handler should ignore ERATT */
289 uint32_t pgpOffset; /* PGP offset within host memory */
291 struct lpfc_sli2_slim *slim2p;
292 struct lpfc_dmabuf hbqslimp;
294 dma_addr_t slim2p_mapping;
297 uint16_t pci_cfg_value;
300 uint8_t fc_linkspeed; /* Link speed after last READ_LA */
302 uint32_t fc_eventTag; /* event tag for link attention */
305 struct timer_list fc_estabtmo; /* link establishment timer */
306 /* These fields used to be binfo */
307 uint32_t fc_pref_DID; /* preferred D_ID */
308 uint8_t fc_pref_ALPA; /* preferred AL_PA */
309 uint32_t fc_edtov; /* E_D_TOV timer value */
310 uint32_t fc_arbtov; /* ARB_TOV timer value */
311 uint32_t fc_ratov; /* R_A_TOV timer value */
312 uint32_t fc_rttov; /* R_T_TOV timer value */
313 uint32_t fc_altov; /* AL_TOV timer value */
314 uint32_t fc_crtov; /* C_R_TOV timer value */
315 uint32_t fc_citov; /* C_I_TOV timer value */
317 struct serv_parm fc_fabparam; /* fabric service parameters buffer */
318 uint8_t alpa_map[128]; /* AL_PA map from READ_LA */
322 uint32_t fc_topology; /* link topology, from LINK INIT */
324 struct lpfc_stats fc_stat;
326 struct lpfc_nodelist fc_fcpnodev; /* nodelist entry for no device */
327 uint32_t nport_event_cnt; /* timestamp for nlplist entry */
331 uint32_t RandomData[7];
333 uint32_t cfg_log_verbose;
334 uint32_t cfg_lun_queue_depth;
335 uint32_t cfg_nodev_tmo;
336 uint32_t cfg_devloss_tmo;
337 uint32_t cfg_hba_queue_depth;
338 uint32_t cfg_fcp_class;
339 uint32_t cfg_use_adisc;
341 uint32_t cfg_topology;
342 uint32_t cfg_scan_down;
343 uint32_t cfg_link_speed;
344 uint32_t cfg_cr_delay;
345 uint32_t cfg_cr_count;
346 uint32_t cfg_multi_ring_support;
347 uint32_t cfg_multi_ring_rctl;
348 uint32_t cfg_multi_ring_type;
349 uint32_t cfg_fdmi_on;
350 uint32_t cfg_discovery_threads;
351 uint32_t cfg_max_luns;
353 uint32_t cfg_poll_tmo;
354 uint32_t cfg_use_msi;
355 uint32_t cfg_sg_seg_cnt;
356 uint32_t cfg_sg_dma_buf_size;
357 uint64_t cfg_soft_wwnn;
358 uint64_t cfg_soft_wwpn;
360 uint32_t dev_loss_tmo_changed;
362 lpfc_vpd_t vpd; /* vital product data */
364 struct pci_dev *pcidev;
365 struct list_head work_list;
366 uint32_t work_ha; /* Host Attention Bits for WT */
367 uint32_t work_ha_mask; /* HA Bits owned by WT */
368 uint32_t work_hs; /* HS stored in case of ERRAT */
369 uint32_t work_status[2]; /* Extra status from SLIM */
371 wait_queue_head_t *work_wait;
372 struct task_struct *worker_thread;
374 unsigned long pci_bar0_map; /* Physical address for PCI BAR0 */
375 unsigned long pci_bar2_map; /* Physical address for PCI BAR2 */
376 void __iomem *slim_memmap_p; /* Kernel memory mapped address for
378 void __iomem *ctrl_regs_memmap_p;/* Kernel memory mapped address for
381 void __iomem *MBslimaddr; /* virtual address for mbox cmds */
382 void __iomem *HAregaddr; /* virtual address for host attn reg */
383 void __iomem *CAregaddr; /* virtual address for chip attn reg */
384 void __iomem *HSregaddr; /* virtual address for host status
386 void __iomem *HCregaddr; /* virtual address for host ctl reg */
388 int brd_no; /* FC board number */
390 char SerialNumber[32]; /* adapter Serial Number */
391 char OptionROMVersion[32]; /* adapter BIOS / Fcode version */
392 char ModelDesc[256]; /* Model Description */
393 char ModelName[80]; /* Model Name */
394 char ProgramType[256]; /* Program Type */
395 char Port[20]; /* Port No */
396 uint8_t vpd_flag; /* VPD data flag */
398 #define VPD_MODEL_DESC 0x1 /* valid vpd model description */
399 #define VPD_MODEL_NAME 0x2 /* valid vpd model name */
400 #define VPD_PROGRAM_TYPE 0x4 /* valid vpd program type */
401 #define VPD_PORT 0x8 /* valid vpd port data */
402 #define VPD_MASK 0xf /* mask for any vpd data */
404 uint8_t soft_wwn_enable;
406 struct timer_list fcp_poll_timer;
411 uint64_t fc4InputRequests;
412 uint64_t fc4OutputRequests;
413 uint64_t fc4ControlRequests;
415 struct lpfc_sysfs_mbox sysfs_mbox;
418 spinlock_t scsi_buf_list_lock;
419 struct list_head lpfc_scsi_buf_list;
420 uint32_t total_scsi_bufs;
421 struct list_head lpfc_iocb_list;
422 uint32_t total_iocbq_bufs;
426 struct pci_pool *lpfc_scsi_dma_buf_pool;
427 struct pci_pool *lpfc_mbuf_pool;
428 struct lpfc_dma_pool lpfc_mbuf_safety_pool;
430 mempool_t *mbox_mem_pool;
431 mempool_t *nlp_mem_pool;
433 struct fc_host_statistics link_stats;
434 struct list_head port_list;
435 struct lpfc_vport *pport; /* physical lpfc_vport pointer */
438 static inline struct Scsi_Host *
439 lpfc_shost_from_vport(struct lpfc_vport *vport)
441 return container_of((void *) vport, struct Scsi_Host, hostdata[0]);
445 lpfc_set_loopback_flag(struct lpfc_hba *phba)
447 if (phba->cfg_topology == FLAGS_LOCAL_LB)
448 phba->link_flag |= LS_LOOPBACK_MODE;
450 phba->link_flag &= ~LS_LOOPBACK_MODE;
454 lpfc_is_link_up(struct lpfc_hba *phba)
456 return phba->link_state == LPFC_LINK_UP ||
457 phba->link_state == LPFC_CLEAR_LA;
462 #define FC_REG_DUMP_EVENT 0x10 /* Register for Dump events */