/******************************************************************* * This file is part of the Emulex Linux Device Driver for * * Fibre Channel Host Bus Adapters. * * Copyright (C) 2004-2007 Emulex. All rights reserved. * * EMULEX and SLI are trademarks of Emulex. * * www.emulex.com * * Portions Copyright (C) 2004-2005 Christoph Hellwig * * * * This program is free software; you can redistribute it and/or * * modify it under the terms of version 2 of the GNU General * * Public License as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful. * * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * * TO BE LEGALLY INVALID. See the GNU General Public License for * * more details, a copy of which can be found in the file COPYING * * included with this package. * *******************************************************************/ #include struct lpfc_sli2_slim; #define LPFC_MAX_TARGET 256 /* max number of targets supported */ #define LPFC_MAX_DISC_THREADS 64 /* max outstanding discovery els requests */ #define LPFC_MAX_NS_RETRY 3 /* Number of retry attempts to contact the NameServer before giving up. */ #define LPFC_CMD_PER_LUN 3 /* max outstanding cmds per lun */ #define LPFC_SG_SEG_CNT 64 /* sg element count per scsi cmnd */ #define LPFC_IOCB_LIST_CNT 2250 /* list of IOCBs for fast-path usage. */ #define LPFC_Q_RAMP_UP_INTERVAL 120 /* lun q_depth ramp up interval */ /* * Following time intervals are used of adjusting SCSI device * queue depths when there are driver resource error or Firmware * resource error. */ #define QUEUE_RAMP_DOWN_INTERVAL (1 * HZ) /* 1 Second */ #define QUEUE_RAMP_UP_INTERVAL (300 * HZ) /* 5 minutes */ /* Number of exchanges reserved for discovery to complete */ #define LPFC_DISC_IOCB_BUFF_COUNT 20 #define LPFC_HB_MBOX_INTERVAL 5 /* Heart beat interval in seconds. */ #define LPFC_HB_MBOX_TIMEOUT 30 /* Heart beat timeout in seconds. */ /* Define macros for 64 bit support */ #define putPaddrLow(addr) ((uint32_t) (0xffffffff & (u64)(addr))) #define putPaddrHigh(addr) ((uint32_t) (0xffffffff & (((u64)(addr))>>32))) #define getPaddr(high, low) ((dma_addr_t)( \ (( (u64)(high)<<16 ) << 16)|( (u64)(low)))) /* Provide maximum configuration definitions. */ #define LPFC_DRVR_TIMEOUT 16 /* driver iocb timeout value in sec */ #define FC_MAX_ADPTMSG 64 #define MAX_HBAEVT 32 enum lpfc_polling_flags { ENABLE_FCP_RING_POLLING = 0x1, DISABLE_FCP_RING_INT = 0x2 }; /* Provide DMA memory definitions the driver uses per port instance. */ struct lpfc_dmabuf { struct list_head list; void *virt; /* virtual address ptr */ dma_addr_t phys; /* mapped address */ }; struct lpfc_dma_pool { struct lpfc_dmabuf *elements; uint32_t max_count; uint32_t current_count; }; struct hbq_dmabuf { struct lpfc_dmabuf dbuf; uint32_t tag; }; /* Priority bit. Set value to exceed low water mark in lpfc_mem. */ #define MEM_PRI 0x100 /****************************************************************************/ /* Device VPD save area */ /****************************************************************************/ typedef struct lpfc_vpd { uint32_t status; /* vpd status value */ uint32_t length; /* number of bytes actually returned */ struct { uint32_t rsvd1; /* Revision numbers */ uint32_t biuRev; uint32_t smRev; uint32_t smFwRev; uint32_t endecRev; uint16_t rBit; uint8_t fcphHigh; uint8_t fcphLow; uint8_t feaLevelHigh; uint8_t feaLevelLow; uint32_t postKernRev; uint32_t opFwRev; uint8_t opFwName[16]; uint32_t sli1FwRev; uint8_t sli1FwName[16]; uint32_t sli2FwRev; uint8_t sli2FwName[16]; } rev; struct { #ifdef __BIG_ENDIAN_BITFIELD uint32_t rsvd2 :24; /* Reserved */ uint32_t cmv : 1; /* Configure Max VPIs */ uint32_t ccrp : 1; /* Config Command Ring Polling */ uint32_t csah : 1; /* Configure Synchronous Abort Handling */ uint32_t chbs : 1; /* Cofigure Host Backing store */ uint32_t cinb : 1; /* Enable Interrupt Notification Block */ uint32_t cerbm : 1; /* Configure Enhanced Receive Buf Mgmt */ uint32_t cmx : 1; /* Configure Max XRIs */ uint32_t cmr : 1; /* Configure Max RPIs */ #else /* __LITTLE_ENDIAN */ uint32_t cmr : 1; /* Configure Max RPIs */ uint32_t cmx : 1; /* Configure Max XRIs */ uint32_t cerbm : 1; /* Configure Enhanced Receive Buf Mgmt */ uint32_t cinb : 1; /* Enable Interrupt Notification Block */ uint32_t chbs : 1; /* Cofigure Host Backing store */ uint32_t csah : 1; /* Configure Synchronous Abort Handling */ uint32_t ccrp : 1; /* Config Command Ring Polling */ uint32_t cmv : 1; /* Configure Max VPIs */ uint32_t rsvd2 :24; /* Reserved */ #endif } sli3Feat; } lpfc_vpd_t; struct lpfc_scsi_buf; /* * lpfc stat counters */ struct lpfc_stats { /* Statistics for ELS commands */ uint32_t elsLogiCol; uint32_t elsRetryExceeded; uint32_t elsXmitRetry; uint32_t elsDelayRetry; uint32_t elsRcvDrop; uint32_t elsRcvFrame; uint32_t elsRcvRSCN; uint32_t elsRcvRNID; uint32_t elsRcvFARP; uint32_t elsRcvFARPR; uint32_t elsRcvFLOGI; uint32_t elsRcvPLOGI; uint32_t elsRcvADISC; uint32_t elsRcvPDISC; uint32_t elsRcvFAN; uint32_t elsRcvLOGO; uint32_t elsRcvPRLO; uint32_t elsRcvPRLI; uint32_t elsRcvLIRR; uint32_t elsRcvRPS; uint32_t elsRcvRPL; uint32_t elsXmitFLOGI; uint32_t elsXmitFDISC; uint32_t elsXmitPLOGI; uint32_t elsXmitPRLI; uint32_t elsXmitADISC; uint32_t elsXmitLOGO; uint32_t elsXmitSCR; uint32_t elsXmitRNID; uint32_t elsXmitFARP; uint32_t elsXmitFARPR; uint32_t elsXmitACC; uint32_t elsXmitLSRJT; uint32_t frameRcvBcast; uint32_t frameRcvMulti; uint32_t strayXmitCmpl; uint32_t frameXmitDelay; uint32_t xriCmdCmpl; uint32_t xriStatErr; uint32_t LinkUp; uint32_t LinkDown; uint32_t LinkMultiEvent; uint32_t NoRcvBuf; uint32_t fcpCmd; uint32_t fcpCmpl; uint32_t fcpRspErr; uint32_t fcpRemoteStop; uint32_t fcpPortRjt; uint32_t fcpPortBusy; uint32_t fcpError; uint32_t fcpLocalErr; }; enum sysfs_mbox_state { SMBOX_IDLE, SMBOX_WRITING, SMBOX_READING }; struct lpfc_sysfs_mbox { enum sysfs_mbox_state state; size_t offset; struct lpfcMboxq * mbox; }; struct lpfc_hba; enum discovery_state { LPFC_VPORT_UNKNOWN = 0, /* vport state is unknown */ LPFC_VPORT_FAILED = 1, /* vport has failed */ LPFC_LOCAL_CFG_LINK = 6, /* local NPORT Id configured */ LPFC_FLOGI = 7, /* FLOGI sent to Fabric */ LPFC_FDISC = 8, /* FDISC sent for vport */ LPFC_FABRIC_CFG_LINK = 9, /* Fabric assigned NPORT Id * configured */ LPFC_NS_REG = 10, /* Register with NameServer */ LPFC_NS_QRY = 11, /* Query NameServer for NPort ID list */ LPFC_BUILD_DISC_LIST = 12, /* Build ADISC and PLOGI lists for * device authentication / discovery */ LPFC_DISC_AUTH = 13, /* Processing ADISC list */ LPFC_VPORT_READY = 32, }; enum hba_state { LPFC_LINK_UNKNOWN = 0, /* HBA state is unknown */ LPFC_WARM_START = 1, /* HBA state after selective reset */ LPFC_INIT_START = 2, /* Initial state after board reset */ LPFC_INIT_MBX_CMDS = 3, /* Initialize HBA with mbox commands */ LPFC_LINK_DOWN = 4, /* HBA initialized, link is down */ LPFC_LINK_UP = 5, /* Link is up - issue READ_LA */ LPFC_CLEAR_LA = 6, /* authentication cmplt - issue * CLEAR_LA */ LPFC_HBA_READY = 32, LPFC_HBA_ERROR = -1 }; struct lpfc_vport { struct list_head listentry; struct lpfc_hba *phba; uint8_t port_type; #define LPFC_PHYSICAL_PORT 1 #define LPFC_NPIV_PORT 2 #define LPFC_FABRIC_PORT 3 enum discovery_state port_state; uint16_t vpi; uint32_t fc_flag; /* FC flags */ /* Several of these flags are HBA centric and should be moved to * phba->link_flag (e.g. FC_PTP, FC_PUBLIC_LOOP) */ #define FC_PT2PT 0x1 /* pt2pt with no fabric */ #define FC_PT2PT_PLOGI 0x2 /* pt2pt initiate PLOGI */ #define FC_DISC_TMO 0x4 /* Discovery timer running */ #define FC_PUBLIC_LOOP 0x8 /* Public loop */ #define FC_LBIT 0x10 /* LOGIN bit in loopinit set */ #define FC_RSCN_MODE 0x20 /* RSCN cmd rcv'ed */ #define FC_NLP_MORE 0x40 /* More node to process in node tbl */ #define FC_OFFLINE_MODE 0x80 /* Interface is offline for diag */ #define FC_FABRIC 0x100 /* We are fabric attached */ #define FC_ESTABLISH_LINK 0x200 /* Reestablish Link */ #define FC_RSCN_DISCOVERY 0x400 /* Auth all devices after RSCN */ #define FC_SCSI_SCAN_TMO 0x4000 /* scsi scan timer running */ #define FC_ABORT_DISCOVERY 0x8000 /* we want to abort discovery */ #define FC_NDISC_ACTIVE 0x10000 /* NPort discovery active */ #define FC_BYPASSED_MODE 0x20000 /* NPort is in bypassed mode */ #define FC_RFF_NOT_SUPPORTED 0x40000 /* RFF_ID was rejected by switch */ #define FC_VPORT_NEEDS_REG_VPI 0x80000 /* Needs to have its vpi registered */ #define FC_RSCN_DEFERRED 0x100000 /* A deferred RSCN being processed */ struct list_head fc_nodes; /* Keep counters for the number of entries in each list. */ uint16_t fc_plogi_cnt; uint16_t fc_adisc_cnt; uint16_t fc_reglogin_cnt; uint16_t fc_prli_cnt; uint16_t fc_unmap_cnt; uint16_t fc_map_cnt; uint16_t fc_npr_cnt; uint16_t fc_unused_cnt; struct serv_parm fc_sparam; /* buffer for our service parameters */ uint32_t fc_myDID; /* fibre channel S_ID */ uint32_t fc_prevDID; /* previous fibre channel S_ID */ int32_t stopped; /* HBA has not been restarted since last ERATT */ uint8_t fc_linkspeed; /* Link speed after last READ_LA */ uint32_t num_disc_nodes; /*in addition to hba_state */ uint32_t fc_nlp_cnt; /* outstanding NODELIST requests */ uint32_t fc_rscn_id_cnt; /* count of RSCNs payloads in list */ struct lpfc_dmabuf *fc_rscn_id_list[FC_MAX_HOLD_RSCN]; struct lpfc_name fc_nodename; /* fc nodename */ struct lpfc_name fc_portname; /* fc portname */ struct lpfc_work_evt disc_timeout_evt; struct timer_list fc_disctmo; /* Discovery rescue timer */ uint8_t fc_ns_retry; /* retries for fabric nameserver */ uint32_t fc_prli_sent; /* cntr for outstanding PRLIs */ spinlock_t work_port_lock; uint32_t work_port_events; /* Timeout to be handled */ #define WORKER_DISC_TMO 0x1 /* vport: Discovery timeout */ #define WORKER_ELS_TMO 0x2 /* vport: ELS timeout */ #define WORKER_FDMI_TMO 0x4 /* vport: FDMI timeout */ #define WORKER_MBOX_TMO 0x100 /* hba: MBOX timeout */ #define WORKER_HB_TMO 0x200 /* hba: Heart beat timeout */ #define WORKER_FABRIC_BLOCK_TMO 0x400 /* hba: fabric block timout */ #define WORKER_RAMP_DOWN_QUEUE 0x800 /* hba: Decrease Q depth */ #define WORKER_RAMP_UP_QUEUE 0x1000 /* hba: Increase Q depth */ struct timer_list fc_fdmitmo; struct timer_list els_tmofunc; int unreg_vpi_cmpl; uint8_t load_flag; #define FC_LOADING 0x1 /* HBA in process of loading drvr */ #define FC_UNLOADING 0x2 /* HBA in process of unloading drvr */ char *vname; /* Application assigned name */ struct fc_vport *fc_vport; #ifdef CONFIG_LPFC_DEBUG_FS struct dentry *debug_disc_trc; struct dentry *debug_nodelist; struct dentry *vport_debugfs_root; struct lpfc_disc_trc *disc_trc; atomic_t disc_trc_cnt; #endif }; struct hbq_s { uint16_t entry_count; /* Current number of HBQ slots */ uint32_t next_hbqPutIdx; /* Index to next HBQ slot to use */ uint32_t hbqPutIdx; /* HBQ slot to use */ uint32_t local_hbqGetIdx; /* Local copy of Get index from Port */ }; #define LPFC_MAX_HBQS 16 /* this matches the possition in the lpfc_hbq_defs array */ #define LPFC_ELS_HBQ 0 struct lpfc_hba { struct lpfc_sli sli; uint32_t sli_rev; /* SLI2 or SLI3 */ uint32_t sli3_options; /* Mask of enabled SLI3 options */ #define LPFC_SLI3_ENABLED 0x01 #define LPFC_SLI3_HBQ_ENABLED 0x02 #define LPFC_SLI3_NPIV_ENABLED 0x04 #define LPFC_SLI3_VPORT_TEARDOWN 0x08 uint32_t iocb_cmd_size; uint32_t iocb_rsp_size; enum hba_state link_state; uint32_t link_flag; /* link state flags */ #define LS_LOOPBACK_MODE 0x1 /* NPort is in Loopback mode */ /* This flag is set while issuing */ /* INIT_LINK mailbox command */ #define LS_NPIV_FAB_SUPPORTED 0x2 /* Fabric supports NPIV */ #define LS_IGNORE_ERATT 0x3 /* intr handler should ignore ERATT */ struct lpfc_sli2_slim *slim2p; struct lpfc_dmabuf hbqslimp; dma_addr_t slim2p_mapping; uint16_t pci_cfg_value; uint8_t work_found; #define LPFC_MAX_WORKER_ITERATION 4 uint8_t fc_linkspeed; /* Link speed after last READ_LA */ uint32_t fc_eventTag; /* event tag for link attention */ struct timer_list fc_estabtmo; /* link establishment timer */ /* These fields used to be binfo */ uint32_t fc_pref_DID; /* preferred D_ID */ uint8_t fc_pref_ALPA; /* preferred AL_PA */ uint32_t fc_edtov; /* E_D_TOV timer value */ uint32_t fc_arbtov; /* ARB_TOV timer value */ uint32_t fc_ratov; /* R_A_TOV timer value */ uint32_t fc_rttov; /* R_T_TOV timer value */ uint32_t fc_altov; /* AL_TOV timer value */ uint32_t fc_crtov; /* C_R_TOV timer value */ uint32_t fc_citov; /* C_I_TOV timer value */ struct serv_parm fc_fabparam; /* fabric service parameters buffer */ uint8_t alpa_map[128]; /* AL_PA map from READ_LA */ uint32_t lmt; uint32_t fc_topology; /* link topology, from LINK INIT */ struct lpfc_stats fc_stat; struct lpfc_nodelist fc_fcpnodev; /* nodelist entry for no device */ uint32_t nport_event_cnt; /* timestamp for nlplist entry */ uint8_t wwnn[8]; uint8_t wwpn[8]; uint32_t RandomData[7]; uint32_t cfg_log_verbose; uint32_t cfg_lun_queue_depth; uint32_t cfg_nodev_tmo; uint32_t cfg_devloss_tmo; uint32_t cfg_hba_queue_depth; uint32_t cfg_peer_port_login; uint32_t cfg_vport_restrict_login; uint32_t cfg_npiv_enable; uint32_t cfg_fcp_class; uint32_t cfg_use_adisc; uint32_t cfg_ack0; uint32_t cfg_topology; uint32_t cfg_scan_down; uint32_t cfg_link_speed; uint32_t cfg_cr_delay; uint32_t cfg_cr_count; uint32_t cfg_multi_ring_support; uint32_t cfg_multi_ring_rctl; uint32_t cfg_multi_ring_type; uint32_t cfg_fdmi_on; uint32_t cfg_discovery_threads; uint32_t cfg_max_luns; uint32_t cfg_poll; uint32_t cfg_poll_tmo; uint32_t cfg_use_msi; uint32_t cfg_sg_seg_cnt; uint32_t cfg_sg_dma_buf_size; uint64_t cfg_soft_wwnn; uint64_t cfg_soft_wwpn; uint32_t dev_loss_tmo_changed; lpfc_vpd_t vpd; /* vital product data */ struct pci_dev *pcidev; struct list_head work_list; uint32_t work_ha; /* Host Attention Bits for WT */ uint32_t work_ha_mask; /* HA Bits owned by WT */ uint32_t work_hs; /* HS stored in case of ERRAT */ uint32_t work_status[2]; /* Extra status from SLIM */ wait_queue_head_t *work_wait; struct task_struct *worker_thread; struct list_head hbq_buffer_list; uint32_t hbq_count; /* Count of configured HBQs */ struct hbq_s hbqs[LPFC_MAX_HBQS]; /* local copy of hbq indicies */ unsigned long pci_bar0_map; /* Physical address for PCI BAR0 */ unsigned long pci_bar2_map; /* Physical address for PCI BAR2 */ void __iomem *slim_memmap_p; /* Kernel memory mapped address for PCI BAR0 */ void __iomem *ctrl_regs_memmap_p;/* Kernel memory mapped address for PCI BAR2 */ void __iomem *MBslimaddr; /* virtual address for mbox cmds */ void __iomem *HAregaddr; /* virtual address for host attn reg */ void __iomem *CAregaddr; /* virtual address for chip attn reg */ void __iomem *HSregaddr; /* virtual address for host status reg */ void __iomem *HCregaddr; /* virtual address for host ctl reg */ struct lpfc_hgp __iomem *host_gp; /* Host side get/put pointers */ uint32_t __iomem *hbq_put; /* Address in SLIM to HBQ put ptrs */ uint32_t *hbq_get; /* Host mem address of HBQ get ptrs */ int brd_no; /* FC board number */ char SerialNumber[32]; /* adapter Serial Number */ char OptionROMVersion[32]; /* adapter BIOS / Fcode version */ char ModelDesc[256]; /* Model Description */ char ModelName[80]; /* Model Name */ char ProgramType[256]; /* Program Type */ char Port[20]; /* Port No */ uint8_t vpd_flag; /* VPD data flag */ #define VPD_MODEL_DESC 0x1 /* valid vpd model description */ #define VPD_MODEL_NAME 0x2 /* valid vpd model name */ #define VPD_PROGRAM_TYPE 0x4 /* valid vpd program type */ #define VPD_PORT 0x8 /* valid vpd port data */ #define VPD_MASK 0xf /* mask for any vpd data */ uint8_t soft_wwn_enable; struct timer_list fcp_poll_timer; /* * stat counters */ uint64_t fc4InputRequests; uint64_t fc4OutputRequests; uint64_t fc4ControlRequests; struct lpfc_sysfs_mbox sysfs_mbox; /* fastpath list. */ spinlock_t scsi_buf_list_lock; struct list_head lpfc_scsi_buf_list; uint32_t total_scsi_bufs; struct list_head lpfc_iocb_list; uint32_t total_iocbq_bufs; spinlock_t hbalock; /* pci_mem_pools */ struct pci_pool *lpfc_scsi_dma_buf_pool; struct pci_pool *lpfc_mbuf_pool; struct pci_pool *lpfc_hbq_pool; struct lpfc_dma_pool lpfc_mbuf_safety_pool; mempool_t *mbox_mem_pool; mempool_t *nlp_mem_pool; struct fc_host_statistics link_stats; struct list_head port_list; struct lpfc_vport *pport; /* physical lpfc_vport pointer */ uint16_t max_vpi; /* Maximum virtual nports */ #define LPFC_MAX_VPI 100 /* Max number of VPorts supported */ unsigned long *vpi_bmask; /* vpi allocation table */ /* Data structure used by fabric iocb scheduler */ struct list_head fabric_iocb_list; atomic_t fabric_iocb_count; struct timer_list fabric_block_timer; unsigned long bit_flags; #define FABRIC_COMANDS_BLOCKED 0 atomic_t num_rsrc_err; atomic_t num_cmd_success; unsigned long last_rsrc_error_time; unsigned long last_ramp_down_time; unsigned long last_ramp_up_time; #ifdef CONFIG_LPFC_DEBUG_FS struct dentry *hba_debugfs_root; atomic_t debugfs_vport_count; #endif /* Fields used for heart beat. */ unsigned long last_completion_time; struct timer_list hb_tmofunc; uint8_t hb_outstanding; }; static inline struct Scsi_Host * lpfc_shost_from_vport(struct lpfc_vport *vport) { return container_of((void *) vport, struct Scsi_Host, hostdata[0]); } static inline void lpfc_set_loopback_flag(struct lpfc_hba *phba) { if (phba->cfg_topology == FLAGS_LOCAL_LB) phba->link_flag |= LS_LOOPBACK_MODE; else phba->link_flag &= ~LS_LOOPBACK_MODE; } static inline int lpfc_is_link_up(struct lpfc_hba *phba) { return phba->link_state == LPFC_LINK_UP || phba->link_state == LPFC_CLEAR_LA || phba->link_state == LPFC_HBA_READY; } #define FC_REG_DUMP_EVENT 0x10 /* Register for Dump events */