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linux/drivers/scsi/lpfc/lpfc.h
James Smart 4258e98ee3 lpfc: Modularize and cleanup FDMI code in driver 
Modularize, cleanup, add comments - for FDMI code in driver

Note: I don't like the comments with leading # - but as we have a lot if
present, I'm deferring to handle it in one big fix later.

Signed-off-by: Dick Kennedy <dick.kennedy@avagotech.com>
Signed-off-by: James Smart <james.smart@avagotech.com>
Reviewed-by: Hannes Reinicke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2015-12-21 22:01:20 -05:00

1072 lines
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/*******************************************************************
* This file is part of the Emulex Linux Device Driver for *
* Fibre Channel Host Bus Adapters. *
* Copyright (C) 2004-2015 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 <scsi/scsi_host.h>
#if defined(CONFIG_DEBUG_FS) && !defined(CONFIG_SCSI_LPFC_DEBUG_FS)
#define CONFIG_SCSI_LPFC_DEBUG_FS
#endif
struct lpfc_sli2_slim;
#define ELX_MODEL_NAME_SIZE 80
#define LPFC_PCI_DEV_LP 0x1
#define LPFC_PCI_DEV_OC 0x2
#define LPFC_SLI_REV2 2
#define LPFC_SLI_REV3 3
#define LPFC_SLI_REV4 4
#define LPFC_MAX_TARGET 4096 /* 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_DEFAULT_SG_SEG_CNT 64 /* sg element count per scsi cmnd */
#define LPFC_DEFAULT_MENLO_SG_SEG_CNT 128 /* sg element count per scsi
cmnd for menlo needs nearly twice as for firmware
downloads using bsg */
#define LPFC_MIN_SG_SLI4_BUF_SZ 0x800 /* based on LPFC_DEFAULT_SG_SEG_CNT */
#define LPFC_MAX_SG_SLI4_SEG_CNT_DIF 128 /* sg element count per scsi cmnd */
#define LPFC_MAX_SG_SEG_CNT_DIF 512 /* sg element count per scsi cmnd */
#define LPFC_MAX_SG_SEG_CNT 4096 /* sg element count per scsi cmnd */
#define LPFC_MAX_SGL_SEG_CNT 512 /* SGL element count per scsi cmnd */
#define LPFC_MAX_BPL_SEG_CNT 4096 /* BPL element count per scsi cmnd */
#define LPFC_MAX_SGE_SIZE 0x80000000 /* Maximum data allowed in a SGE */
#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 */
#define LPFC_VNAME_LEN 100 /* vport symbolic name length */
#define LPFC_TGTQ_INTERVAL 40000 /* Min amount of time between tgt
queue depth change in millisecs */
#define LPFC_TGTQ_RAMPUP_PCENT 5 /* Target queue rampup in percentage */
#define LPFC_MIN_TGT_QDEPTH 10
#define LPFC_MAX_TGT_QDEPTH 0xFFFF
#define LPFC_MAX_BUCKET_COUNT 20 /* Maximum no. of buckets for stat data
collection. */
/*
* Following time intervals are used of adjusting SCSI device
* queue depths when there are driver resource error or Firmware
* resource error.
*/
/* 1 Second */
#define QUEUE_RAMP_DOWN_INTERVAL (msecs_to_jiffies(1000 * 1))
/* 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 LPFC_LOOK_AHEAD_OFF 0 /* Look ahead logic is turned off */
/* Error Attention event polling interval */
#define LPFC_ERATT_POLL_INTERVAL 5 /* EATT poll interval 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
/* Number of MSI-X vectors the driver uses */
#define LPFC_MSIX_VECTORS 2
/* lpfc wait event data ready flag */
#define LPFC_DATA_READY (1<<0)
/* queue dump line buffer size */
#define LPFC_LBUF_SZ 128
/* mailbox system shutdown options */
#define LPFC_MBX_NO_WAIT 0
#define LPFC_MBX_WAIT 1
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 */
uint32_t buffer_tag; /* used for tagged queue ring */
};
struct lpfc_dma_pool {
struct lpfc_dmabuf *elements;
uint32_t max_count;
uint32_t current_count;
};
struct hbq_dmabuf {
struct lpfc_dmabuf hbuf;
struct lpfc_dmabuf dbuf;
uint32_t size;
uint32_t tag;
struct lpfc_cq_event cq_event;
unsigned long time_stamp;
};
/* 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 rsvd3 :19; /* Reserved */
uint32_t cdss : 1; /* Configure Data Security SLI */
uint32_t rsvd2 : 3; /* Reserved */
uint32_t cbg : 1; /* Configure BlockGuard */
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 cbg : 1; /* Configure BlockGuard */
uint32_t rsvd2 : 3; /* Reserved */
uint32_t cdss : 1; /* Configure Data Security SLI */
uint32_t rsvd3 :19; /* 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 elsRcvRLS;
uint32_t elsRcvRPS;
uint32_t elsRcvRPL;
uint32_t elsRcvRRQ;
uint32_t elsRcvRTV;
uint32_t elsRcvECHO;
uint32_t elsRcvLCB;
uint32_t elsRcvRDP;
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;
};
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 lpfc_hba *phba;
struct list_head listentry;
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;
uint16_t vfi;
uint8_t vpi_state;
#define LPFC_VPI_REGISTERED 0x1
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_VPORT_LOGO_RCVD 0x200 /* LOGO received on vport */
#define FC_RSCN_DISCOVERY 0x400 /* Auth all devices after RSCN */
#define FC_LOGO_RCVD_DID_CHNG 0x800 /* FDISC on phys port detect DID chng*/
#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_VPORT_NEEDS_REG_VPI 0x80000 /* Needs to have its vpi registered */
#define FC_RSCN_DEFERRED 0x100000 /* A deferred RSCN being processed */
#define FC_VPORT_NEEDS_INIT_VPI 0x200000 /* Need to INIT_VPI before FDISC */
#define FC_VPORT_CVL_RCVD 0x400000 /* VLink failed due to CVL */
#define FC_VFI_REGISTERED 0x800000 /* VFI is registered */
#define FC_FDISC_COMPLETED 0x1000000/* FDISC completed */
#define FC_DISC_DELAYED 0x2000000/* Delay NPort discovery */
uint32_t ct_flags;
#define FC_CT_RFF_ID 0x1 /* RFF_ID accepted by switch */
#define FC_CT_RNN_ID 0x2 /* RNN_ID accepted by switch */
#define FC_CT_RSNN_NN 0x4 /* RSNN_NN accepted by switch */
#define FC_CT_RSPN_ID 0x8 /* RSPN_ID accepted by switch */
#define FC_CT_RFT_ID 0x10 /* RFT_ID accepted by switch */
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 */
struct lpfc_name fabric_portname;
struct lpfc_name fabric_nodename;
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 */
uint32_t fc_rscn_flush; /* flag use of fc_rscn_id_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_DELAYED_DISC_TMO 0x8 /* vport: delayed discovery */
#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 timeout */
#define WORKER_RAMP_DOWN_QUEUE 0x800 /* hba: Decrease Q depth */
#define WORKER_RAMP_UP_QUEUE 0x1000 /* hba: Increase Q depth */
#define WORKER_SERVICE_TXQ 0x2000 /* hba: IOCBs on the txq */
struct timer_list els_tmofunc;
struct timer_list delayed_disc_tmo;
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 */
#define FC_ALLOW_FDMI 0x4 /* port is ready for FDMI requests */
/* Vport Config Parameters */
uint32_t cfg_scan_down;
uint32_t cfg_lun_queue_depth;
uint32_t cfg_nodev_tmo;
uint32_t cfg_devloss_tmo;
uint32_t cfg_restrict_login;
uint32_t cfg_peer_port_login;
uint32_t cfg_fcp_class;
uint32_t cfg_use_adisc;
uint32_t cfg_discovery_threads;
uint32_t cfg_log_verbose;
uint32_t cfg_max_luns;
uint32_t cfg_enable_da_id;
uint32_t cfg_max_scsicmpl_time;
uint32_t cfg_tgt_queue_depth;
uint32_t cfg_first_burst_size;
uint32_t dev_loss_tmo_changed;
struct fc_vport *fc_vport;
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
struct dentry *debug_disc_trc;
struct dentry *debug_nodelist;
struct dentry *vport_debugfs_root;
struct lpfc_debugfs_trc *disc_trc;
atomic_t disc_trc_cnt;
#endif
uint8_t stat_data_enabled;
uint8_t stat_data_blocked;
struct list_head rcv_buffer_list;
unsigned long rcv_buffer_time_stamp;
uint32_t vport_flag;
#define STATIC_VPORT 1
uint16_t fdmi_num_disc;
uint32_t fdmi_hba_mask;
uint32_t fdmi_port_mask;
};
struct hbq_s {
uint16_t entry_count; /* Current number of HBQ slots */
uint16_t buffer_count; /* Current number of buffers posted */
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 */
void *hbq_virt; /* Virtual ptr to this hbq */
struct list_head hbq_buffer_list; /* buffers assigned to this HBQ */
/* Callback for HBQ buffer allocation */
struct hbq_dmabuf *(*hbq_alloc_buffer) (struct lpfc_hba *);
/* Callback for HBQ buffer free */
void (*hbq_free_buffer) (struct lpfc_hba *,
struct hbq_dmabuf *);
};
#define LPFC_MAX_HBQS 4
/* this matches the position in the lpfc_hbq_defs array */
#define LPFC_ELS_HBQ 0
#define LPFC_EXTRA_HBQ 1
enum hba_temp_state {
HBA_NORMAL_TEMP,
HBA_OVER_TEMP
};
enum intr_type_t {
NONE = 0,
INTx,
MSI,
MSIX,
};
#define LPFC_CT_CTX_MAX 64
struct unsol_rcv_ct_ctx {
uint32_t ctxt_id;
uint32_t SID;
uint32_t valid;
#define UNSOL_INVALID 0
#define UNSOL_VALID 1
uint16_t oxid;
uint16_t rxid;
};
#define LPFC_USER_LINK_SPEED_AUTO 0 /* auto select (default)*/
#define LPFC_USER_LINK_SPEED_1G 1 /* 1 Gigabaud */
#define LPFC_USER_LINK_SPEED_2G 2 /* 2 Gigabaud */
#define LPFC_USER_LINK_SPEED_4G 4 /* 4 Gigabaud */
#define LPFC_USER_LINK_SPEED_8G 8 /* 8 Gigabaud */
#define LPFC_USER_LINK_SPEED_10G 10 /* 10 Gigabaud */
#define LPFC_USER_LINK_SPEED_16G 16 /* 16 Gigabaud */
#define LPFC_USER_LINK_SPEED_32G 32 /* 32 Gigabaud */
#define LPFC_USER_LINK_SPEED_MAX LPFC_USER_LINK_SPEED_32G
#define LPFC_USER_LINK_SPEED_BITMAP ((1ULL << LPFC_USER_LINK_SPEED_32G) | \
(1 << LPFC_USER_LINK_SPEED_16G) | \
(1 << LPFC_USER_LINK_SPEED_10G) | \
(1 << LPFC_USER_LINK_SPEED_8G) | \
(1 << LPFC_USER_LINK_SPEED_4G) | \
(1 << LPFC_USER_LINK_SPEED_2G) | \
(1 << LPFC_USER_LINK_SPEED_1G) | \
(1 << LPFC_USER_LINK_SPEED_AUTO))
#define LPFC_LINK_SPEED_STRING "0, 1, 2, 4, 8, 10, 16, 32"
enum nemb_type {
nemb_mse = 1,
nemb_hbd
};
enum mbox_type {
mbox_rd = 1,
mbox_wr
};
enum dma_type {
dma_mbox = 1,
dma_ebuf
};
enum sta_type {
sta_pre_addr = 1,
sta_pos_addr
};
struct lpfc_mbox_ext_buf_ctx {
uint32_t state;
#define LPFC_BSG_MBOX_IDLE 0
#define LPFC_BSG_MBOX_HOST 1
#define LPFC_BSG_MBOX_PORT 2
#define LPFC_BSG_MBOX_DONE 3
#define LPFC_BSG_MBOX_ABTS 4
enum nemb_type nembType;
enum mbox_type mboxType;
uint32_t numBuf;
uint32_t mbxTag;
uint32_t seqNum;
struct lpfc_dmabuf *mbx_dmabuf;
struct list_head ext_dmabuf_list;
};
struct lpfc_hba {
/* SCSI interface function jump table entries */
int (*lpfc_new_scsi_buf)
(struct lpfc_vport *, int);
struct lpfc_scsi_buf * (*lpfc_get_scsi_buf)
(struct lpfc_hba *, struct lpfc_nodelist *);
int (*lpfc_scsi_prep_dma_buf)
(struct lpfc_hba *, struct lpfc_scsi_buf *);
void (*lpfc_scsi_unprep_dma_buf)
(struct lpfc_hba *, struct lpfc_scsi_buf *);
void (*lpfc_release_scsi_buf)
(struct lpfc_hba *, struct lpfc_scsi_buf *);
void (*lpfc_rampdown_queue_depth)
(struct lpfc_hba *);
void (*lpfc_scsi_prep_cmnd)
(struct lpfc_vport *, struct lpfc_scsi_buf *,
struct lpfc_nodelist *);
/* IOCB interface function jump table entries */
int (*__lpfc_sli_issue_iocb)
(struct lpfc_hba *, uint32_t,
struct lpfc_iocbq *, uint32_t);
void (*__lpfc_sli_release_iocbq)(struct lpfc_hba *,
struct lpfc_iocbq *);
int (*lpfc_hba_down_post)(struct lpfc_hba *phba);
IOCB_t * (*lpfc_get_iocb_from_iocbq)
(struct lpfc_iocbq *);
void (*lpfc_scsi_cmd_iocb_cmpl)
(struct lpfc_hba *, struct lpfc_iocbq *, struct lpfc_iocbq *);
/* MBOX interface function jump table entries */
int (*lpfc_sli_issue_mbox)
(struct lpfc_hba *, LPFC_MBOXQ_t *, uint32_t);
/* Slow-path IOCB process function jump table entries */
void (*lpfc_sli_handle_slow_ring_event)
(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
uint32_t mask);
/* INIT device interface function jump table entries */
int (*lpfc_sli_hbq_to_firmware)
(struct lpfc_hba *, uint32_t, struct hbq_dmabuf *);
int (*lpfc_sli_brdrestart)
(struct lpfc_hba *);
int (*lpfc_sli_brdready)
(struct lpfc_hba *, uint32_t);
void (*lpfc_handle_eratt)
(struct lpfc_hba *);
void (*lpfc_stop_port)
(struct lpfc_hba *);
int (*lpfc_hba_init_link)
(struct lpfc_hba *, uint32_t);
int (*lpfc_hba_down_link)
(struct lpfc_hba *, uint32_t);
int (*lpfc_selective_reset)
(struct lpfc_hba *);
int (*lpfc_bg_scsi_prep_dma_buf)
(struct lpfc_hba *, struct lpfc_scsi_buf *);
/* Add new entries here */
/* SLI4 specific HBA data structure */
struct lpfc_sli4_hba sli4_hba;
struct lpfc_sli sli;
uint8_t pci_dev_grp; /* lpfc PCI dev group: 0x0, 0x1, 0x2,... */
uint32_t sli_rev; /* SLI2, SLI3, or SLI4 */
uint32_t sli3_options; /* Mask of enabled SLI3 options */
#define LPFC_SLI3_HBQ_ENABLED 0x01
#define LPFC_SLI3_NPIV_ENABLED 0x02
#define LPFC_SLI3_VPORT_TEARDOWN 0x04
#define LPFC_SLI3_CRP_ENABLED 0x08
#define LPFC_SLI3_BG_ENABLED 0x20
#define LPFC_SLI3_DSS_ENABLED 0x40
#define LPFC_SLI4_PERFH_ENABLED 0x80
#define LPFC_SLI4_PHWQ_ENABLED 0x100
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 0x4 /* intr handler should ignore ERATT */
uint32_t hba_flag; /* hba generic flags */
#define HBA_ERATT_HANDLED 0x1 /* This flag is set when eratt handled */
#define DEFER_ERATT 0x2 /* Deferred error attention in progress */
#define HBA_FCOE_MODE 0x4 /* HBA function in FCoE Mode */
#define HBA_SP_QUEUE_EVT 0x8 /* Slow-path qevt posted to worker thread*/
#define HBA_POST_RECEIVE_BUFFER 0x10 /* Rcv buffers need to be posted */
#define FCP_XRI_ABORT_EVENT 0x20
#define ELS_XRI_ABORT_EVENT 0x40
#define ASYNC_EVENT 0x80
#define LINK_DISABLED 0x100 /* Link disabled by user */
#define FCF_TS_INPROG 0x200 /* FCF table scan in progress */
#define FCF_RR_INPROG 0x400 /* FCF roundrobin flogi in progress */
#define HBA_FIP_SUPPORT 0x800 /* FIP support in HBA */
#define HBA_AER_ENABLED 0x1000 /* AER enabled with HBA */
#define HBA_DEVLOSS_TMO 0x2000 /* HBA in devloss timeout */
#define HBA_RRQ_ACTIVE 0x4000 /* process the rrq active list */
#define HBA_FCP_IOQ_FLUSH 0x8000 /* FCP I/O queues being flushed */
#define HBA_FW_DUMP_OP 0x10000 /* Skips fn reset before FW dump */
uint32_t fcp_ring_in_use; /* When polling test if intr-hndlr active*/
struct lpfc_dmabuf slim2p;
MAILBOX_t *mbox;
uint32_t *mbox_ext;
struct lpfc_mbox_ext_buf_ctx mbox_ext_buf_ctx;
uint32_t ha_copy;
struct _PCB *pcb;
struct _IOCB *IOCBs;
struct lpfc_dmabuf hbqslimp;
uint16_t pci_cfg_value;
uint8_t fc_linkspeed; /* Link speed after last READ_LA */
uint32_t fc_eventTag; /* event tag for link attention */
uint32_t link_events;
/* 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_edtovResol; /* E_D_TOV timer resolution */
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 */
uint32_t fc_topology_changed; /* 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];
/* HBA Config Parameters */
uint32_t cfg_ack0;
uint32_t cfg_enable_npiv;
uint32_t cfg_enable_rrq;
uint32_t cfg_topology;
uint32_t cfg_link_speed;
#define LPFC_FCF_FOV 1 /* Fast fcf failover */
#define LPFC_FCF_PRIORITY 2 /* Priority fcf failover */
uint32_t cfg_fcf_failover_policy;
uint32_t cfg_fcp_io_sched;
uint32_t cfg_fcp2_no_tgt_reset;
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_poll;
uint32_t cfg_poll_tmo;
uint32_t cfg_task_mgmt_tmo;
uint32_t cfg_use_msi;
uint32_t cfg_fcp_imax;
uint32_t cfg_fcp_cpu_map;
uint32_t cfg_fcp_io_channel;
uint32_t cfg_total_seg_cnt;
uint32_t cfg_sg_seg_cnt;
uint32_t cfg_prot_sg_seg_cnt;
uint32_t cfg_sg_dma_buf_size;
uint64_t cfg_soft_wwnn;
uint64_t cfg_soft_wwpn;
uint32_t cfg_hba_queue_depth;
uint32_t cfg_enable_hba_reset;
uint32_t cfg_enable_hba_heartbeat;
uint32_t cfg_fof;
uint32_t cfg_EnableXLane;
uint8_t cfg_oas_tgt_wwpn[8];
uint8_t cfg_oas_vpt_wwpn[8];
uint32_t cfg_oas_lun_state;
#define OAS_LUN_ENABLE 1
#define OAS_LUN_DISABLE 0
uint32_t cfg_oas_lun_status;
#define OAS_LUN_STATUS_EXISTS 0x01
uint32_t cfg_oas_flags;
#define OAS_FIND_ANY_VPORT 0x01
#define OAS_FIND_ANY_TARGET 0x02
#define OAS_LUN_VALID 0x04
uint32_t cfg_XLanePriority;
uint32_t cfg_enable_bg;
uint32_t cfg_hostmem_hgp;
uint32_t cfg_log_verbose;
uint32_t cfg_aer_support;
uint32_t cfg_sriov_nr_virtfn;
uint32_t cfg_request_firmware_upgrade;
uint32_t cfg_iocb_cnt;
uint32_t cfg_suppress_link_up;
uint32_t cfg_rrq_xri_bitmap_sz;
#define LPFC_INITIALIZE_LINK 0 /* do normal init_link mbox */
#define LPFC_DELAY_INIT_LINK 1 /* layered driver hold off */
#define LPFC_DELAY_INIT_LINK_INDEFINITELY 2 /* wait, manual intervention */
uint32_t cfg_enable_dss;
uint32_t cfg_fdmi_on;
#define LPFC_FDMI_NO_SUPPORT 0 /* FDMI not supported */
#define LPFC_FDMI_SUPPORT 1 /* FDMI supported? */
#define LPFC_FDMI_SMART_SAN 2 /* SmartSAN supported */
uint32_t cfg_enable_SmartSAN;
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_waitq;
struct task_struct *worker_thread;
unsigned long data_flags;
uint32_t hbq_in_use; /* HBQs in use flag */
struct list_head rb_pend_list; /* Received buffers to be processed */
uint32_t hbq_count; /* Count of configured HBQs */
struct hbq_s hbqs[LPFC_MAX_HBQS]; /* local copy of hbq indicies */
atomic_t fcp_qidx; /* next work queue to post work to */
unsigned long pci_bar0_map; /* Physical address for PCI BAR0 */
unsigned long pci_bar1_map; /* Physical address for PCI BAR1 */
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 *pci_bar0_memmap_p; /* Kernel memory mapped address for
PCI BAR0 with dual-ULP support */
void __iomem *pci_bar2_memmap_p; /* Kernel memory mapped address for
PCI BAR2 with dual-ULP support */
void __iomem *pci_bar4_memmap_p; /* Kernel memory mapped address for
PCI BAR4 with dual-ULP support */
#define PCI_64BIT_BAR0 0
#define PCI_64BIT_BAR2 2
#define PCI_64BIT_BAR4 4
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 */
struct lpfc_pgp *port_gp;
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;
struct timer_list eratt_poll;
/*
* stat counters
*/
uint64_t fc4InputRequests;
uint64_t fc4OutputRequests;
uint64_t fc4ControlRequests;
uint64_t bg_guard_err_cnt;
uint64_t bg_apptag_err_cnt;
uint64_t bg_reftag_err_cnt;
/* fastpath list. */
spinlock_t scsi_buf_list_get_lock; /* SCSI buf alloc list lock */
spinlock_t scsi_buf_list_put_lock; /* SCSI buf free list lock */
struct list_head lpfc_scsi_buf_list_get;
struct list_head lpfc_scsi_buf_list_put;
uint32_t total_scsi_bufs;
struct list_head lpfc_iocb_list;
uint32_t total_iocbq_bufs;
struct list_head active_rrq_list;
spinlock_t hbalock;
/* pci_mem_pools */
struct pci_pool *lpfc_scsi_dma_buf_pool;
struct pci_pool *lpfc_mbuf_pool;
struct pci_pool *lpfc_hrb_pool; /* header receive buffer pool */
struct pci_pool *lpfc_drb_pool; /* data receive buffer pool */
struct pci_pool *lpfc_hbq_pool; /* SLI3 hbq buffer pool */
struct lpfc_dma_pool lpfc_mbuf_safety_pool;
mempool_t *mbox_mem_pool;
mempool_t *nlp_mem_pool;
mempool_t *rrq_pool;
mempool_t *active_rrq_pool;
struct fc_host_statistics link_stats;
enum intr_type_t intr_type;
uint32_t intr_mode;
#define LPFC_INTR_ERROR 0xFFFFFFFF
struct msix_entry msix_entries[LPFC_MSIX_VECTORS];
struct list_head port_list;
struct lpfc_vport *pport; /* physical lpfc_vport pointer */
uint16_t max_vpi; /* Maximum virtual nports */
#define LPFC_MAX_VPI 0xFFFF /* Max number of VPI supported */
uint16_t max_vports; /*
* For IOV HBAs max_vpi can change
* after a reset. max_vports is max
* number of vports present. This can
* be greater than max_vpi.
*/
uint16_t vpi_base;
uint16_t vfi_base;
unsigned long *vpi_bmask; /* vpi allocation table */
uint16_t *vpi_ids;
uint16_t vpi_count;
struct list_head lpfc_vpi_blk_list;
/* 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;
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
struct dentry *hba_debugfs_root;
atomic_t debugfs_vport_count;
struct dentry *debug_hbqinfo;
struct dentry *debug_dumpHostSlim;
struct dentry *debug_dumpHBASlim;
struct dentry *debug_dumpData; /* BlockGuard BPL */
struct dentry *debug_dumpDif; /* BlockGuard BPL */
struct dentry *debug_InjErrLBA; /* LBA to inject errors at */
struct dentry *debug_InjErrNPortID; /* NPortID to inject errors at */
struct dentry *debug_InjErrWWPN; /* WWPN to inject errors at */
struct dentry *debug_writeGuard; /* inject write guard_tag errors */
struct dentry *debug_writeApp; /* inject write app_tag errors */
struct dentry *debug_writeRef; /* inject write ref_tag errors */
struct dentry *debug_readGuard; /* inject read guard_tag errors */
struct dentry *debug_readApp; /* inject read app_tag errors */
struct dentry *debug_readRef; /* inject read ref_tag errors */
/* T10 DIF error injection */
uint32_t lpfc_injerr_wgrd_cnt;
uint32_t lpfc_injerr_wapp_cnt;
uint32_t lpfc_injerr_wref_cnt;
uint32_t lpfc_injerr_rgrd_cnt;
uint32_t lpfc_injerr_rapp_cnt;
uint32_t lpfc_injerr_rref_cnt;
uint32_t lpfc_injerr_nportid;
struct lpfc_name lpfc_injerr_wwpn;
sector_t lpfc_injerr_lba;
#define LPFC_INJERR_LBA_OFF (sector_t)(-1)
struct dentry *debug_slow_ring_trc;
struct lpfc_debugfs_trc *slow_ring_trc;
atomic_t slow_ring_trc_cnt;
/* iDiag debugfs sub-directory */
struct dentry *idiag_root;
struct dentry *idiag_pci_cfg;
struct dentry *idiag_bar_acc;
struct dentry *idiag_que_info;
struct dentry *idiag_que_acc;
struct dentry *idiag_drb_acc;
struct dentry *idiag_ctl_acc;
struct dentry *idiag_mbx_acc;
struct dentry *idiag_ext_acc;
#endif
/* Used for deferred freeing of ELS data buffers */
struct list_head elsbuf;
int elsbuf_cnt;
int elsbuf_prev_cnt;
uint8_t temp_sensor_support;
/* Fields used for heart beat. */
unsigned long last_completion_time;
unsigned long skipped_hb;
struct timer_list hb_tmofunc;
uint8_t hb_outstanding;
struct timer_list rrq_tmr;
enum hba_temp_state over_temp_state;
/* ndlp reference management */
spinlock_t ndlp_lock;
/*
* Following bit will be set for all buffer tags which are not
* associated with any HBQ.
*/
#define QUE_BUFTAG_BIT (1<<31)
uint32_t buffer_tag_count;
int wait_4_mlo_maint_flg;
wait_queue_head_t wait_4_mlo_m_q;
/* data structure used for latency data collection */
#define LPFC_NO_BUCKET 0
#define LPFC_LINEAR_BUCKET 1
#define LPFC_POWER2_BUCKET 2
uint8_t bucket_type;
uint32_t bucket_base;
uint32_t bucket_step;
/* Maximum number of events that can be outstanding at any time*/
#define LPFC_MAX_EVT_COUNT 512
atomic_t fast_event_count;
uint32_t fcoe_eventtag;
uint32_t fcoe_eventtag_at_fcf_scan;
uint32_t fcoe_cvl_eventtag;
uint32_t fcoe_cvl_eventtag_attn;
struct lpfc_fcf fcf;
uint8_t fc_map[3];
uint8_t valid_vlan;
uint16_t vlan_id;
struct list_head fcf_conn_rec_list;
spinlock_t ct_ev_lock; /* synchronize access to ct_ev_waiters */
struct list_head ct_ev_waiters;
struct unsol_rcv_ct_ctx ct_ctx[LPFC_CT_CTX_MAX];
uint32_t ctx_idx;
uint8_t menlo_flag; /* menlo generic flags */
#define HBA_MENLO_SUPPORT 0x1 /* HBA supports menlo commands */
uint32_t iocb_cnt;
uint32_t iocb_max;
atomic_t sdev_cnt;
uint8_t fips_spec_rev;
uint8_t fips_level;
spinlock_t devicelock; /* lock for luns list */
mempool_t *device_data_mem_pool;
struct list_head luns;
};
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;
}
static inline void
lpfc_worker_wake_up(struct lpfc_hba *phba)
{
/* Set the lpfc data pending flag */
set_bit(LPFC_DATA_READY, &phba->data_flags);
/* Wake up worker thread */
wake_up(&phba->work_waitq);
return;
}
static inline int
lpfc_readl(void __iomem *addr, uint32_t *data)
{
uint32_t temp;
temp = readl(addr);
if (temp == 0xffffffff)
return -EIO;
*data = temp;
return 0;
}
static inline int
lpfc_sli_read_hs(struct lpfc_hba *phba)
{
/*
* There was a link/board error. Read the status register to retrieve
* the error event and process it.
*/
phba->sli.slistat.err_attn_event++;
/* Save status info and check for unplug error */
if (lpfc_readl(phba->HSregaddr, &phba->work_hs) ||
lpfc_readl(phba->MBslimaddr + 0xa8, &phba->work_status[0]) ||
lpfc_readl(phba->MBslimaddr + 0xac, &phba->work_status[1])) {
return -EIO;
}
/* Clear chip Host Attention error bit */
writel(HA_ERATT, phba->HAregaddr);
readl(phba->HAregaddr); /* flush */
phba->pport->stopped = 1;
return 0;
}
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