forked from Minki/linux
46fa311e69
Rework offline path to solve HBA reset issues Signed-off-by: James Smart <James.Smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
404 lines
14 KiB
C
404 lines
14 KiB
C
/*******************************************************************
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* This file is part of the Emulex Linux Device Driver for *
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* Fibre Channel Host Bus Adapters. *
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* Copyright (C) 2004-2006 Emulex. All rights reserved. *
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* EMULEX and SLI are trademarks of Emulex. *
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* www.emulex.com *
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* Portions Copyright (C) 2004-2005 Christoph Hellwig *
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* *
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* This program is free software; you can redistribute it and/or *
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* modify it under the terms of version 2 of the GNU General *
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* Public License as published by the Free Software Foundation. *
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* This program is distributed in the hope that it will be useful. *
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* ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
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* WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
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* FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
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* DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
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* TO BE LEGALLY INVALID. See the GNU General Public License for *
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* more details, a copy of which can be found in the file COPYING *
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* included with this package. *
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*******************************************************************/
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struct lpfc_sli2_slim;
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#define LPFC_MAX_TARGET 256 /* max number of targets supported */
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#define LPFC_MAX_DISC_THREADS 64 /* max outstanding discovery els
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requests */
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#define LPFC_MAX_NS_RETRY 3 /* Number of retry attempts to contact
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the NameServer before giving up. */
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#define LPFC_DFT_HBA_Q_DEPTH 2048 /* max cmds per hba */
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#define LPFC_LC_HBA_Q_DEPTH 1024 /* max cmds per low cost hba */
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#define LPFC_LP101_HBA_Q_DEPTH 128 /* max cmds per low cost hba */
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#define LPFC_CMD_PER_LUN 3 /* max outstanding cmds per lun */
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#define LPFC_SG_SEG_CNT 64 /* sg element count per scsi cmnd */
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#define LPFC_IOCB_LIST_CNT 2250 /* list of IOCBs for fast-path usage. */
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#define LPFC_Q_RAMP_UP_INTERVAL 120 /* lun q_depth ramp up interval */
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/* Define macros for 64 bit support */
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#define putPaddrLow(addr) ((uint32_t) (0xffffffff & (u64)(addr)))
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#define putPaddrHigh(addr) ((uint32_t) (0xffffffff & (((u64)(addr))>>32)))
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#define getPaddr(high, low) ((dma_addr_t)( \
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(( (u64)(high)<<16 ) << 16)|( (u64)(low))))
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/* Provide maximum configuration definitions. */
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#define LPFC_DRVR_TIMEOUT 16 /* driver iocb timeout value in sec */
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#define FC_MAX_ADPTMSG 64
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#define MAX_HBAEVT 32
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enum lpfc_polling_flags {
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ENABLE_FCP_RING_POLLING = 0x1,
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DISABLE_FCP_RING_INT = 0x2
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};
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/* Provide DMA memory definitions the driver uses per port instance. */
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struct lpfc_dmabuf {
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struct list_head list;
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void *virt; /* virtual address ptr */
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dma_addr_t phys; /* mapped address */
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};
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struct lpfc_dma_pool {
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struct lpfc_dmabuf *elements;
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uint32_t max_count;
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uint32_t current_count;
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};
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/* Priority bit. Set value to exceed low water mark in lpfc_mem. */
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#define MEM_PRI 0x100
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/****************************************************************************/
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/* Device VPD save area */
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/****************************************************************************/
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typedef struct lpfc_vpd {
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uint32_t status; /* vpd status value */
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uint32_t length; /* number of bytes actually returned */
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struct {
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uint32_t rsvd1; /* Revision numbers */
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uint32_t biuRev;
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uint32_t smRev;
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uint32_t smFwRev;
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uint32_t endecRev;
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uint16_t rBit;
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uint8_t fcphHigh;
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uint8_t fcphLow;
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uint8_t feaLevelHigh;
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uint8_t feaLevelLow;
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uint32_t postKernRev;
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uint32_t opFwRev;
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uint8_t opFwName[16];
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uint32_t sli1FwRev;
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uint8_t sli1FwName[16];
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uint32_t sli2FwRev;
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uint8_t sli2FwName[16];
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} rev;
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} lpfc_vpd_t;
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struct lpfc_scsi_buf;
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/*
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* lpfc stat counters
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*/
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struct lpfc_stats {
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/* Statistics for ELS commands */
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uint32_t elsLogiCol;
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uint32_t elsRetryExceeded;
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uint32_t elsXmitRetry;
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uint32_t elsDelayRetry;
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uint32_t elsRcvDrop;
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uint32_t elsRcvFrame;
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uint32_t elsRcvRSCN;
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uint32_t elsRcvRNID;
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uint32_t elsRcvFARP;
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uint32_t elsRcvFARPR;
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uint32_t elsRcvFLOGI;
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uint32_t elsRcvPLOGI;
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uint32_t elsRcvADISC;
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uint32_t elsRcvPDISC;
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uint32_t elsRcvFAN;
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uint32_t elsRcvLOGO;
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uint32_t elsRcvPRLO;
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uint32_t elsRcvPRLI;
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uint32_t elsRcvLIRR;
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uint32_t elsRcvRPS;
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uint32_t elsRcvRPL;
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uint32_t elsXmitFLOGI;
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uint32_t elsXmitPLOGI;
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uint32_t elsXmitPRLI;
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uint32_t elsXmitADISC;
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uint32_t elsXmitLOGO;
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uint32_t elsXmitSCR;
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uint32_t elsXmitRNID;
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uint32_t elsXmitFARP;
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uint32_t elsXmitFARPR;
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uint32_t elsXmitACC;
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uint32_t elsXmitLSRJT;
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uint32_t frameRcvBcast;
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uint32_t frameRcvMulti;
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uint32_t strayXmitCmpl;
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uint32_t frameXmitDelay;
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uint32_t xriCmdCmpl;
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uint32_t xriStatErr;
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uint32_t LinkUp;
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uint32_t LinkDown;
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uint32_t LinkMultiEvent;
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uint32_t NoRcvBuf;
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uint32_t fcpCmd;
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uint32_t fcpCmpl;
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uint32_t fcpRspErr;
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uint32_t fcpRemoteStop;
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uint32_t fcpPortRjt;
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uint32_t fcpPortBusy;
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uint32_t fcpError;
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uint32_t fcpLocalErr;
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};
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enum sysfs_mbox_state {
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SMBOX_IDLE,
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SMBOX_WRITING,
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SMBOX_READING
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};
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struct lpfc_sysfs_mbox {
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enum sysfs_mbox_state state;
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size_t offset;
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struct lpfcMboxq * mbox;
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};
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struct lpfc_hba {
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struct lpfc_sli sli;
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struct lpfc_sli2_slim *slim2p;
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dma_addr_t slim2p_mapping;
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uint16_t pci_cfg_value;
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int32_t hba_state;
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#define LPFC_STATE_UNKNOWN 0 /* HBA state is unknown */
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#define LPFC_WARM_START 1 /* HBA state after selective reset */
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#define LPFC_INIT_START 2 /* Initial state after board reset */
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#define LPFC_INIT_MBX_CMDS 3 /* Initialize HBA with mbox commands */
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#define LPFC_LINK_DOWN 4 /* HBA initialized, link is down */
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#define LPFC_LINK_UP 5 /* Link is up - issue READ_LA */
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#define LPFC_LOCAL_CFG_LINK 6 /* local NPORT Id configured */
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#define LPFC_FLOGI 7 /* FLOGI sent to Fabric */
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#define LPFC_FABRIC_CFG_LINK 8 /* Fabric assigned NPORT Id
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configured */
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#define LPFC_NS_REG 9 /* Register with NameServer */
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#define LPFC_NS_QRY 10 /* Query NameServer for NPort ID list */
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#define LPFC_BUILD_DISC_LIST 11 /* Build ADISC and PLOGI lists for
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* device authentication / discovery */
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#define LPFC_DISC_AUTH 12 /* Processing ADISC list */
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#define LPFC_CLEAR_LA 13 /* authentication cmplt - issue
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CLEAR_LA */
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#define LPFC_HBA_READY 32
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#define LPFC_HBA_ERROR -1
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int32_t stopped; /* HBA has not been restarted since last ERATT */
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uint8_t fc_linkspeed; /* Link speed after last READ_LA */
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uint32_t fc_eventTag; /* event tag for link attention */
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uint32_t fc_prli_sent; /* cntr for outstanding PRLIs */
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uint32_t num_disc_nodes; /*in addition to hba_state */
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struct timer_list fc_estabtmo; /* link establishment timer */
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struct timer_list fc_disctmo; /* Discovery rescue timer */
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struct timer_list fc_fdmitmo; /* fdmi timer */
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/* These fields used to be binfo */
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struct lpfc_name fc_nodename; /* fc nodename */
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struct lpfc_name fc_portname; /* fc portname */
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uint32_t fc_pref_DID; /* preferred D_ID */
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uint8_t fc_pref_ALPA; /* preferred AL_PA */
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uint32_t fc_edtov; /* E_D_TOV timer value */
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uint32_t fc_arbtov; /* ARB_TOV timer value */
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uint32_t fc_ratov; /* R_A_TOV timer value */
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uint32_t fc_rttov; /* R_T_TOV timer value */
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uint32_t fc_altov; /* AL_TOV timer value */
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uint32_t fc_crtov; /* C_R_TOV timer value */
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uint32_t fc_citov; /* C_I_TOV timer value */
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uint32_t fc_myDID; /* fibre channel S_ID */
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uint32_t fc_prevDID; /* previous fibre channel S_ID */
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struct serv_parm fc_sparam; /* buffer for our service parameters */
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struct serv_parm fc_fabparam; /* fabric service parameters buffer */
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uint8_t alpa_map[128]; /* AL_PA map from READ_LA */
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uint8_t fc_ns_retry; /* retries for fabric nameserver */
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uint32_t fc_nlp_cnt; /* outstanding NODELIST requests */
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uint32_t fc_rscn_id_cnt; /* count of RSCNs payloads in list */
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struct lpfc_dmabuf *fc_rscn_id_list[FC_MAX_HOLD_RSCN];
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uint32_t lmt;
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uint32_t fc_flag; /* FC flags */
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#define FC_PT2PT 0x1 /* pt2pt with no fabric */
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#define FC_PT2PT_PLOGI 0x2 /* pt2pt initiate PLOGI */
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#define FC_DISC_TMO 0x4 /* Discovery timer running */
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#define FC_PUBLIC_LOOP 0x8 /* Public loop */
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#define FC_LBIT 0x10 /* LOGIN bit in loopinit set */
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#define FC_RSCN_MODE 0x20 /* RSCN cmd rcv'ed */
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#define FC_NLP_MORE 0x40 /* More node to process in node tbl */
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#define FC_OFFLINE_MODE 0x80 /* Interface is offline for diag */
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#define FC_FABRIC 0x100 /* We are fabric attached */
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#define FC_ESTABLISH_LINK 0x200 /* Reestablish Link */
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#define FC_RSCN_DISCOVERY 0x400 /* Authenticate all devices after RSCN*/
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#define FC_BLOCK_MGMT_IO 0x800 /* Don't allow mgmt mbx or iocb cmds */
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#define FC_LOADING 0x1000 /* HBA in process of loading drvr */
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#define FC_UNLOADING 0x2000 /* HBA in process of unloading drvr */
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#define FC_SCSI_SCAN_TMO 0x4000 /* scsi scan timer running */
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#define FC_ABORT_DISCOVERY 0x8000 /* we want to abort discovery */
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#define FC_NDISC_ACTIVE 0x10000 /* NPort discovery active */
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#define FC_BYPASSED_MODE 0x20000 /* NPort is in bypassed mode */
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uint32_t fc_topology; /* link topology, from LINK INIT */
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struct lpfc_stats fc_stat;
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/* These are the head/tail pointers for the bind, plogi, adisc, unmap,
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* and map lists. Their counters are immediately following.
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*/
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struct list_head fc_plogi_list;
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struct list_head fc_adisc_list;
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struct list_head fc_reglogin_list;
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struct list_head fc_prli_list;
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struct list_head fc_nlpunmap_list;
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struct list_head fc_nlpmap_list;
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struct list_head fc_npr_list;
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struct list_head fc_unused_list;
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/* Keep counters for the number of entries in each list. */
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uint16_t fc_plogi_cnt;
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uint16_t fc_adisc_cnt;
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uint16_t fc_reglogin_cnt;
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uint16_t fc_prli_cnt;
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uint16_t fc_unmap_cnt;
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uint16_t fc_map_cnt;
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uint16_t fc_npr_cnt;
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uint16_t fc_unused_cnt;
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struct lpfc_nodelist fc_fcpnodev; /* nodelist entry for no device */
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uint32_t nport_event_cnt; /* timestamp for nlplist entry */
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uint32_t wwnn[2];
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uint32_t RandomData[7];
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uint32_t cfg_log_verbose;
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uint32_t cfg_lun_queue_depth;
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uint32_t cfg_nodev_tmo;
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uint32_t cfg_devloss_tmo;
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uint32_t cfg_hba_queue_depth;
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uint32_t cfg_fcp_class;
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uint32_t cfg_use_adisc;
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uint32_t cfg_ack0;
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uint32_t cfg_topology;
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uint32_t cfg_scan_down;
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uint32_t cfg_link_speed;
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uint32_t cfg_cr_delay;
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uint32_t cfg_cr_count;
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uint32_t cfg_multi_ring_support;
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uint32_t cfg_multi_ring_rctl;
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uint32_t cfg_multi_ring_type;
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uint32_t cfg_fdmi_on;
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uint32_t cfg_discovery_threads;
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uint32_t cfg_max_luns;
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uint32_t cfg_poll;
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uint32_t cfg_poll_tmo;
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uint32_t cfg_use_msi;
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uint32_t cfg_sg_seg_cnt;
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uint32_t cfg_sg_dma_buf_size;
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uint64_t cfg_soft_wwnn;
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uint64_t cfg_soft_wwpn;
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uint32_t dev_loss_tmo_changed;
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lpfc_vpd_t vpd; /* vital product data */
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struct Scsi_Host *host;
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struct pci_dev *pcidev;
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struct list_head work_list;
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uint32_t work_ha; /* Host Attention Bits for WT */
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uint32_t work_ha_mask; /* HA Bits owned by WT */
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uint32_t work_hs; /* HS stored in case of ERRAT */
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uint32_t work_status[2]; /* Extra status from SLIM */
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uint32_t work_hba_events; /* Timeout to be handled */
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#define WORKER_DISC_TMO 0x1 /* Discovery timeout */
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#define WORKER_ELS_TMO 0x2 /* ELS timeout */
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#define WORKER_MBOX_TMO 0x4 /* MBOX timeout */
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#define WORKER_FDMI_TMO 0x8 /* FDMI timeout */
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wait_queue_head_t *work_wait;
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struct task_struct *worker_thread;
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unsigned long pci_bar0_map; /* Physical address for PCI BAR0 */
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unsigned long pci_bar2_map; /* Physical address for PCI BAR2 */
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void __iomem *slim_memmap_p; /* Kernel memory mapped address for
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PCI BAR0 */
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void __iomem *ctrl_regs_memmap_p;/* Kernel memory mapped address for
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PCI BAR2 */
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void __iomem *MBslimaddr; /* virtual address for mbox cmds */
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void __iomem *HAregaddr; /* virtual address for host attn reg */
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void __iomem *CAregaddr; /* virtual address for chip attn reg */
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void __iomem *HSregaddr; /* virtual address for host status
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reg */
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void __iomem *HCregaddr; /* virtual address for host ctl reg */
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int brd_no; /* FC board number */
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char SerialNumber[32]; /* adapter Serial Number */
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char OptionROMVersion[32]; /* adapter BIOS / Fcode version */
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char ModelDesc[256]; /* Model Description */
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char ModelName[80]; /* Model Name */
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char ProgramType[256]; /* Program Type */
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char Port[20]; /* Port No */
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uint8_t vpd_flag; /* VPD data flag */
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#define VPD_MODEL_DESC 0x1 /* valid vpd model description */
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#define VPD_MODEL_NAME 0x2 /* valid vpd model name */
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#define VPD_PROGRAM_TYPE 0x4 /* valid vpd program type */
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#define VPD_PORT 0x8 /* valid vpd port data */
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#define VPD_MASK 0xf /* mask for any vpd data */
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uint8_t soft_wwn_enable;
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struct timer_list fcp_poll_timer;
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struct timer_list els_tmofunc;
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/*
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* stat counters
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*/
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uint64_t fc4InputRequests;
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uint64_t fc4OutputRequests;
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uint64_t fc4ControlRequests;
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struct lpfc_sysfs_mbox sysfs_mbox;
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/* fastpath list. */
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spinlock_t scsi_buf_list_lock;
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struct list_head lpfc_scsi_buf_list;
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uint32_t total_scsi_bufs;
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struct list_head lpfc_iocb_list;
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uint32_t total_iocbq_bufs;
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/* pci_mem_pools */
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struct pci_pool *lpfc_scsi_dma_buf_pool;
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struct pci_pool *lpfc_mbuf_pool;
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struct lpfc_dma_pool lpfc_mbuf_safety_pool;
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mempool_t *mbox_mem_pool;
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mempool_t *nlp_mem_pool;
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struct fc_host_statistics link_stats;
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};
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struct rnidrsp {
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void *buf;
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uint32_t uniqueid;
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struct list_head list;
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uint32_t data;
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};
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#define FC_REG_DUMP_EVENT 0x10 /* Register for Dump events */
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