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b103918a5f
Use logical instead of bitwise AND. Signed-off-by: Sebastian Herbszt <herbszt@gmx.de> Reviewed-by: James Smart <james.smart@avagotech.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
6439 lines
188 KiB
C
6439 lines
188 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) 2004-2015 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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#include <linux/blkdev.h>
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#include <linux/delay.h>
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#include <linux/slab.h>
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#include <linux/pci.h>
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#include <linux/kthread.h>
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#include <linux/interrupt.h>
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#include <scsi/scsi.h>
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#include <scsi/scsi_device.h>
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#include <scsi/scsi_host.h>
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#include <scsi/scsi_transport_fc.h>
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#include "lpfc_hw4.h"
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#include "lpfc_hw.h"
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#include "lpfc_nl.h"
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#include "lpfc_disc.h"
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#include "lpfc_sli.h"
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#include "lpfc_sli4.h"
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#include "lpfc_scsi.h"
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#include "lpfc.h"
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#include "lpfc_logmsg.h"
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#include "lpfc_crtn.h"
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#include "lpfc_vport.h"
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#include "lpfc_debugfs.h"
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/* AlpaArray for assignment of scsid for scan-down and bind_method */
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static uint8_t lpfcAlpaArray[] = {
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0xEF, 0xE8, 0xE4, 0xE2, 0xE1, 0xE0, 0xDC, 0xDA, 0xD9, 0xD6,
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0xD5, 0xD4, 0xD3, 0xD2, 0xD1, 0xCE, 0xCD, 0xCC, 0xCB, 0xCA,
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0xC9, 0xC7, 0xC6, 0xC5, 0xC3, 0xBC, 0xBA, 0xB9, 0xB6, 0xB5,
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0xB4, 0xB3, 0xB2, 0xB1, 0xAE, 0xAD, 0xAC, 0xAB, 0xAA, 0xA9,
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0xA7, 0xA6, 0xA5, 0xA3, 0x9F, 0x9E, 0x9D, 0x9B, 0x98, 0x97,
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0x90, 0x8F, 0x88, 0x84, 0x82, 0x81, 0x80, 0x7C, 0x7A, 0x79,
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0x76, 0x75, 0x74, 0x73, 0x72, 0x71, 0x6E, 0x6D, 0x6C, 0x6B,
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0x6A, 0x69, 0x67, 0x66, 0x65, 0x63, 0x5C, 0x5A, 0x59, 0x56,
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0x55, 0x54, 0x53, 0x52, 0x51, 0x4E, 0x4D, 0x4C, 0x4B, 0x4A,
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0x49, 0x47, 0x46, 0x45, 0x43, 0x3C, 0x3A, 0x39, 0x36, 0x35,
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0x34, 0x33, 0x32, 0x31, 0x2E, 0x2D, 0x2C, 0x2B, 0x2A, 0x29,
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0x27, 0x26, 0x25, 0x23, 0x1F, 0x1E, 0x1D, 0x1B, 0x18, 0x17,
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0x10, 0x0F, 0x08, 0x04, 0x02, 0x01
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};
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static void lpfc_disc_timeout_handler(struct lpfc_vport *);
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static void lpfc_disc_flush_list(struct lpfc_vport *vport);
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static void lpfc_unregister_fcfi_cmpl(struct lpfc_hba *, LPFC_MBOXQ_t *);
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static int lpfc_fcf_inuse(struct lpfc_hba *);
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void
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lpfc_terminate_rport_io(struct fc_rport *rport)
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{
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struct lpfc_rport_data *rdata;
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struct lpfc_nodelist * ndlp;
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struct lpfc_hba *phba;
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rdata = rport->dd_data;
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ndlp = rdata->pnode;
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if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
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if (rport->roles & FC_RPORT_ROLE_FCP_TARGET)
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printk(KERN_ERR "Cannot find remote node"
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" to terminate I/O Data x%x\n",
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rport->port_id);
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return;
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}
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phba = ndlp->phba;
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lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_RPORT,
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"rport terminate: sid:x%x did:x%x flg:x%x",
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ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag);
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if (ndlp->nlp_sid != NLP_NO_SID) {
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lpfc_sli_abort_iocb(ndlp->vport,
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&phba->sli.ring[phba->sli.fcp_ring],
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ndlp->nlp_sid, 0, LPFC_CTX_TGT);
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}
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}
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/*
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* This function will be called when dev_loss_tmo fire.
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*/
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void
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lpfc_dev_loss_tmo_callbk(struct fc_rport *rport)
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{
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struct lpfc_rport_data *rdata;
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struct lpfc_nodelist * ndlp;
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struct lpfc_vport *vport;
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struct Scsi_Host *shost;
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struct lpfc_hba *phba;
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struct lpfc_work_evt *evtp;
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int put_node;
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int put_rport;
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rdata = rport->dd_data;
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ndlp = rdata->pnode;
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if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
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return;
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vport = ndlp->vport;
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phba = vport->phba;
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lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
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"rport devlosscb: sid:x%x did:x%x flg:x%x",
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ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag);
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lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
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"3181 dev_loss_callbk x%06x, rport %p flg x%x\n",
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ndlp->nlp_DID, ndlp->rport, ndlp->nlp_flag);
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/* Don't defer this if we are in the process of deleting the vport
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* or unloading the driver. The unload will cleanup the node
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* appropriately we just need to cleanup the ndlp rport info here.
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*/
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if (vport->load_flag & FC_UNLOADING) {
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put_node = rdata->pnode != NULL;
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put_rport = ndlp->rport != NULL;
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rdata->pnode = NULL;
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ndlp->rport = NULL;
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if (put_node)
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lpfc_nlp_put(ndlp);
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if (put_rport)
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put_device(&rport->dev);
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return;
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}
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if (ndlp->nlp_state == NLP_STE_MAPPED_NODE)
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return;
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if (rport->port_name != wwn_to_u64(ndlp->nlp_portname.u.wwn))
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lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE,
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"6789 rport name %llx != node port name %llx",
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rport->port_name,
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wwn_to_u64(ndlp->nlp_portname.u.wwn));
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evtp = &ndlp->dev_loss_evt;
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if (!list_empty(&evtp->evt_listp)) {
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lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE,
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"6790 rport name %llx dev_loss_evt pending",
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rport->port_name);
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return;
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}
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shost = lpfc_shost_from_vport(vport);
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spin_lock_irq(shost->host_lock);
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ndlp->nlp_flag |= NLP_IN_DEV_LOSS;
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spin_unlock_irq(shost->host_lock);
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/* We need to hold the node by incrementing the reference
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* count until this queued work is done
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*/
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evtp->evt_arg1 = lpfc_nlp_get(ndlp);
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spin_lock_irq(&phba->hbalock);
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if (evtp->evt_arg1) {
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evtp->evt = LPFC_EVT_DEV_LOSS;
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list_add_tail(&evtp->evt_listp, &phba->work_list);
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lpfc_worker_wake_up(phba);
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}
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spin_unlock_irq(&phba->hbalock);
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return;
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}
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/**
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* lpfc_dev_loss_tmo_handler - Remote node devloss timeout handler
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* @ndlp: Pointer to remote node object.
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*
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* This function is called from the worker thread when devloss timeout timer
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* expires. For SLI4 host, this routine shall return 1 when at lease one
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* remote node, including this @ndlp, is still in use of FCF; otherwise, this
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* routine shall return 0 when there is no remote node is still in use of FCF
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* when devloss timeout happened to this @ndlp.
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**/
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static int
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lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp)
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{
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struct lpfc_rport_data *rdata;
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struct fc_rport *rport;
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struct lpfc_vport *vport;
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struct lpfc_hba *phba;
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struct Scsi_Host *shost;
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uint8_t *name;
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int put_node;
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int warn_on = 0;
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int fcf_inuse = 0;
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rport = ndlp->rport;
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vport = ndlp->vport;
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shost = lpfc_shost_from_vport(vport);
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spin_lock_irq(shost->host_lock);
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ndlp->nlp_flag &= ~NLP_IN_DEV_LOSS;
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spin_unlock_irq(shost->host_lock);
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if (!rport)
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return fcf_inuse;
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name = (uint8_t *) &ndlp->nlp_portname;
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phba = vport->phba;
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if (phba->sli_rev == LPFC_SLI_REV4)
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fcf_inuse = lpfc_fcf_inuse(phba);
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lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
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"rport devlosstmo:did:x%x type:x%x id:x%x",
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ndlp->nlp_DID, ndlp->nlp_type, rport->scsi_target_id);
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lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
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"3182 dev_loss_tmo_handler x%06x, rport %p flg x%x\n",
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ndlp->nlp_DID, ndlp->rport, ndlp->nlp_flag);
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/*
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* lpfc_nlp_remove if reached with dangling rport drops the
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* reference. To make sure that does not happen clear rport
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* pointer in ndlp before lpfc_nlp_put.
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*/
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rdata = rport->dd_data;
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/* Don't defer this if we are in the process of deleting the vport
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* or unloading the driver. The unload will cleanup the node
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* appropriately we just need to cleanup the ndlp rport info here.
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*/
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if (vport->load_flag & FC_UNLOADING) {
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if (ndlp->nlp_sid != NLP_NO_SID) {
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/* flush the target */
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lpfc_sli_abort_iocb(vport,
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&phba->sli.ring[phba->sli.fcp_ring],
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ndlp->nlp_sid, 0, LPFC_CTX_TGT);
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}
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put_node = rdata->pnode != NULL;
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rdata->pnode = NULL;
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ndlp->rport = NULL;
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if (put_node)
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lpfc_nlp_put(ndlp);
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put_device(&rport->dev);
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return fcf_inuse;
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}
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if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) {
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lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
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"0284 Devloss timeout Ignored on "
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"WWPN %x:%x:%x:%x:%x:%x:%x:%x "
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"NPort x%x\n",
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*name, *(name+1), *(name+2), *(name+3),
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*(name+4), *(name+5), *(name+6), *(name+7),
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ndlp->nlp_DID);
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return fcf_inuse;
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}
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put_node = rdata->pnode != NULL;
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rdata->pnode = NULL;
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ndlp->rport = NULL;
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if (put_node)
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lpfc_nlp_put(ndlp);
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put_device(&rport->dev);
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if (ndlp->nlp_type & NLP_FABRIC)
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return fcf_inuse;
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if (ndlp->nlp_sid != NLP_NO_SID) {
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warn_on = 1;
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lpfc_sli_abort_iocb(vport, &phba->sli.ring[phba->sli.fcp_ring],
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ndlp->nlp_sid, 0, LPFC_CTX_TGT);
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}
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if (warn_on) {
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lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
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"0203 Devloss timeout on "
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"WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x "
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"NPort x%06x Data: x%x x%x x%x\n",
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*name, *(name+1), *(name+2), *(name+3),
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*(name+4), *(name+5), *(name+6), *(name+7),
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ndlp->nlp_DID, ndlp->nlp_flag,
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ndlp->nlp_state, ndlp->nlp_rpi);
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} else {
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lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
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"0204 Devloss timeout on "
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"WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x "
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"NPort x%06x Data: x%x x%x x%x\n",
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*name, *(name+1), *(name+2), *(name+3),
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*(name+4), *(name+5), *(name+6), *(name+7),
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ndlp->nlp_DID, ndlp->nlp_flag,
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ndlp->nlp_state, ndlp->nlp_rpi);
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}
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if (!(vport->load_flag & FC_UNLOADING) &&
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!(ndlp->nlp_flag & NLP_DELAY_TMO) &&
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!(ndlp->nlp_flag & NLP_NPR_2B_DISC) &&
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(ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
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(ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) &&
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(ndlp->nlp_state != NLP_STE_PRLI_ISSUE))
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lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM);
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return fcf_inuse;
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}
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/**
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* lpfc_sli4_post_dev_loss_tmo_handler - SLI4 post devloss timeout handler
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* @phba: Pointer to hba context object.
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* @fcf_inuse: SLI4 FCF in-use state reported from devloss timeout handler.
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* @nlp_did: remote node identifer with devloss timeout.
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*
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* This function is called from the worker thread after invoking devloss
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* timeout handler and releasing the reference count for the ndlp with
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* which the devloss timeout was handled for SLI4 host. For the devloss
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* timeout of the last remote node which had been in use of FCF, when this
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* routine is invoked, it shall be guaranteed that none of the remote are
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* in-use of FCF. When devloss timeout to the last remote using the FCF,
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* if the FIP engine is neither in FCF table scan process nor roundrobin
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* failover process, the in-use FCF shall be unregistered. If the FIP
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* engine is in FCF discovery process, the devloss timeout state shall
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* be set for either the FCF table scan process or roundrobin failover
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* process to unregister the in-use FCF.
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**/
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static void
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lpfc_sli4_post_dev_loss_tmo_handler(struct lpfc_hba *phba, int fcf_inuse,
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uint32_t nlp_did)
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{
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/* If devloss timeout happened to a remote node when FCF had no
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* longer been in-use, do nothing.
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*/
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if (!fcf_inuse)
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return;
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if ((phba->hba_flag & HBA_FIP_SUPPORT) && !lpfc_fcf_inuse(phba)) {
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spin_lock_irq(&phba->hbalock);
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if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
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if (phba->hba_flag & HBA_DEVLOSS_TMO) {
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spin_unlock_irq(&phba->hbalock);
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return;
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}
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phba->hba_flag |= HBA_DEVLOSS_TMO;
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lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
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"2847 Last remote node (x%x) using "
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"FCF devloss tmo\n", nlp_did);
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}
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if (phba->fcf.fcf_flag & FCF_REDISC_PROG) {
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spin_unlock_irq(&phba->hbalock);
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lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
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"2868 Devloss tmo to FCF rediscovery "
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"in progress\n");
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return;
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}
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if (!(phba->hba_flag & (FCF_TS_INPROG | FCF_RR_INPROG))) {
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spin_unlock_irq(&phba->hbalock);
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lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
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"2869 Devloss tmo to idle FIP engine, "
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"unreg in-use FCF and rescan.\n");
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/* Unregister in-use FCF and rescan */
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lpfc_unregister_fcf_rescan(phba);
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return;
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}
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spin_unlock_irq(&phba->hbalock);
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if (phba->hba_flag & FCF_TS_INPROG)
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lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
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"2870 FCF table scan in progress\n");
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if (phba->hba_flag & FCF_RR_INPROG)
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lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
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"2871 FLOGI roundrobin FCF failover "
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"in progress\n");
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}
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lpfc_unregister_unused_fcf(phba);
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}
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/**
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* lpfc_alloc_fast_evt - Allocates data structure for posting event
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* @phba: Pointer to hba context object.
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*
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* This function is called from the functions which need to post
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* events from interrupt context. This function allocates data
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* structure required for posting event. It also keeps track of
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* number of events pending and prevent event storm when there are
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* too many events.
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**/
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struct lpfc_fast_path_event *
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lpfc_alloc_fast_evt(struct lpfc_hba *phba) {
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struct lpfc_fast_path_event *ret;
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/* If there are lot of fast event do not exhaust memory due to this */
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if (atomic_read(&phba->fast_event_count) > LPFC_MAX_EVT_COUNT)
|
|
return NULL;
|
|
|
|
ret = kzalloc(sizeof(struct lpfc_fast_path_event),
|
|
GFP_ATOMIC);
|
|
if (ret) {
|
|
atomic_inc(&phba->fast_event_count);
|
|
INIT_LIST_HEAD(&ret->work_evt.evt_listp);
|
|
ret->work_evt.evt = LPFC_EVT_FASTPATH_MGMT_EVT;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* lpfc_free_fast_evt - Frees event data structure
|
|
* @phba: Pointer to hba context object.
|
|
* @evt: Event object which need to be freed.
|
|
*
|
|
* This function frees the data structure required for posting
|
|
* events.
|
|
**/
|
|
void
|
|
lpfc_free_fast_evt(struct lpfc_hba *phba,
|
|
struct lpfc_fast_path_event *evt) {
|
|
|
|
atomic_dec(&phba->fast_event_count);
|
|
kfree(evt);
|
|
}
|
|
|
|
/**
|
|
* lpfc_send_fastpath_evt - Posts events generated from fast path
|
|
* @phba: Pointer to hba context object.
|
|
* @evtp: Event data structure.
|
|
*
|
|
* This function is called from worker thread, when the interrupt
|
|
* context need to post an event. This function posts the event
|
|
* to fc transport netlink interface.
|
|
**/
|
|
static void
|
|
lpfc_send_fastpath_evt(struct lpfc_hba *phba,
|
|
struct lpfc_work_evt *evtp)
|
|
{
|
|
unsigned long evt_category, evt_sub_category;
|
|
struct lpfc_fast_path_event *fast_evt_data;
|
|
char *evt_data;
|
|
uint32_t evt_data_size;
|
|
struct Scsi_Host *shost;
|
|
|
|
fast_evt_data = container_of(evtp, struct lpfc_fast_path_event,
|
|
work_evt);
|
|
|
|
evt_category = (unsigned long) fast_evt_data->un.fabric_evt.event_type;
|
|
evt_sub_category = (unsigned long) fast_evt_data->un.
|
|
fabric_evt.subcategory;
|
|
shost = lpfc_shost_from_vport(fast_evt_data->vport);
|
|
if (evt_category == FC_REG_FABRIC_EVENT) {
|
|
if (evt_sub_category == LPFC_EVENT_FCPRDCHKERR) {
|
|
evt_data = (char *) &fast_evt_data->un.read_check_error;
|
|
evt_data_size = sizeof(fast_evt_data->un.
|
|
read_check_error);
|
|
} else if ((evt_sub_category == LPFC_EVENT_FABRIC_BUSY) ||
|
|
(evt_sub_category == LPFC_EVENT_PORT_BUSY)) {
|
|
evt_data = (char *) &fast_evt_data->un.fabric_evt;
|
|
evt_data_size = sizeof(fast_evt_data->un.fabric_evt);
|
|
} else {
|
|
lpfc_free_fast_evt(phba, fast_evt_data);
|
|
return;
|
|
}
|
|
} else if (evt_category == FC_REG_SCSI_EVENT) {
|
|
switch (evt_sub_category) {
|
|
case LPFC_EVENT_QFULL:
|
|
case LPFC_EVENT_DEVBSY:
|
|
evt_data = (char *) &fast_evt_data->un.scsi_evt;
|
|
evt_data_size = sizeof(fast_evt_data->un.scsi_evt);
|
|
break;
|
|
case LPFC_EVENT_CHECK_COND:
|
|
evt_data = (char *) &fast_evt_data->un.check_cond_evt;
|
|
evt_data_size = sizeof(fast_evt_data->un.
|
|
check_cond_evt);
|
|
break;
|
|
case LPFC_EVENT_VARQUEDEPTH:
|
|
evt_data = (char *) &fast_evt_data->un.queue_depth_evt;
|
|
evt_data_size = sizeof(fast_evt_data->un.
|
|
queue_depth_evt);
|
|
break;
|
|
default:
|
|
lpfc_free_fast_evt(phba, fast_evt_data);
|
|
return;
|
|
}
|
|
} else {
|
|
lpfc_free_fast_evt(phba, fast_evt_data);
|
|
return;
|
|
}
|
|
|
|
fc_host_post_vendor_event(shost,
|
|
fc_get_event_number(),
|
|
evt_data_size,
|
|
evt_data,
|
|
LPFC_NL_VENDOR_ID);
|
|
|
|
lpfc_free_fast_evt(phba, fast_evt_data);
|
|
return;
|
|
}
|
|
|
|
static void
|
|
lpfc_work_list_done(struct lpfc_hba *phba)
|
|
{
|
|
struct lpfc_work_evt *evtp = NULL;
|
|
struct lpfc_nodelist *ndlp;
|
|
int free_evt;
|
|
int fcf_inuse;
|
|
uint32_t nlp_did;
|
|
|
|
spin_lock_irq(&phba->hbalock);
|
|
while (!list_empty(&phba->work_list)) {
|
|
list_remove_head((&phba->work_list), evtp, typeof(*evtp),
|
|
evt_listp);
|
|
spin_unlock_irq(&phba->hbalock);
|
|
free_evt = 1;
|
|
switch (evtp->evt) {
|
|
case LPFC_EVT_ELS_RETRY:
|
|
ndlp = (struct lpfc_nodelist *) (evtp->evt_arg1);
|
|
lpfc_els_retry_delay_handler(ndlp);
|
|
free_evt = 0; /* evt is part of ndlp */
|
|
/* decrement the node reference count held
|
|
* for this queued work
|
|
*/
|
|
lpfc_nlp_put(ndlp);
|
|
break;
|
|
case LPFC_EVT_DEV_LOSS:
|
|
ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1);
|
|
fcf_inuse = lpfc_dev_loss_tmo_handler(ndlp);
|
|
free_evt = 0;
|
|
/* decrement the node reference count held for
|
|
* this queued work
|
|
*/
|
|
nlp_did = ndlp->nlp_DID;
|
|
lpfc_nlp_put(ndlp);
|
|
if (phba->sli_rev == LPFC_SLI_REV4)
|
|
lpfc_sli4_post_dev_loss_tmo_handler(phba,
|
|
fcf_inuse,
|
|
nlp_did);
|
|
break;
|
|
case LPFC_EVT_ONLINE:
|
|
if (phba->link_state < LPFC_LINK_DOWN)
|
|
*(int *) (evtp->evt_arg1) = lpfc_online(phba);
|
|
else
|
|
*(int *) (evtp->evt_arg1) = 0;
|
|
complete((struct completion *)(evtp->evt_arg2));
|
|
break;
|
|
case LPFC_EVT_OFFLINE_PREP:
|
|
if (phba->link_state >= LPFC_LINK_DOWN)
|
|
lpfc_offline_prep(phba, LPFC_MBX_WAIT);
|
|
*(int *)(evtp->evt_arg1) = 0;
|
|
complete((struct completion *)(evtp->evt_arg2));
|
|
break;
|
|
case LPFC_EVT_OFFLINE:
|
|
lpfc_offline(phba);
|
|
lpfc_sli_brdrestart(phba);
|
|
*(int *)(evtp->evt_arg1) =
|
|
lpfc_sli_brdready(phba, HS_FFRDY | HS_MBRDY);
|
|
lpfc_unblock_mgmt_io(phba);
|
|
complete((struct completion *)(evtp->evt_arg2));
|
|
break;
|
|
case LPFC_EVT_WARM_START:
|
|
lpfc_offline(phba);
|
|
lpfc_reset_barrier(phba);
|
|
lpfc_sli_brdreset(phba);
|
|
lpfc_hba_down_post(phba);
|
|
*(int *)(evtp->evt_arg1) =
|
|
lpfc_sli_brdready(phba, HS_MBRDY);
|
|
lpfc_unblock_mgmt_io(phba);
|
|
complete((struct completion *)(evtp->evt_arg2));
|
|
break;
|
|
case LPFC_EVT_KILL:
|
|
lpfc_offline(phba);
|
|
*(int *)(evtp->evt_arg1)
|
|
= (phba->pport->stopped)
|
|
? 0 : lpfc_sli_brdkill(phba);
|
|
lpfc_unblock_mgmt_io(phba);
|
|
complete((struct completion *)(evtp->evt_arg2));
|
|
break;
|
|
case LPFC_EVT_FASTPATH_MGMT_EVT:
|
|
lpfc_send_fastpath_evt(phba, evtp);
|
|
free_evt = 0;
|
|
break;
|
|
case LPFC_EVT_RESET_HBA:
|
|
if (!(phba->pport->load_flag & FC_UNLOADING))
|
|
lpfc_reset_hba(phba);
|
|
break;
|
|
}
|
|
if (free_evt)
|
|
kfree(evtp);
|
|
spin_lock_irq(&phba->hbalock);
|
|
}
|
|
spin_unlock_irq(&phba->hbalock);
|
|
|
|
}
|
|
|
|
static void
|
|
lpfc_work_done(struct lpfc_hba *phba)
|
|
{
|
|
struct lpfc_sli_ring *pring;
|
|
uint32_t ha_copy, status, control, work_port_events;
|
|
struct lpfc_vport **vports;
|
|
struct lpfc_vport *vport;
|
|
int i;
|
|
|
|
spin_lock_irq(&phba->hbalock);
|
|
ha_copy = phba->work_ha;
|
|
phba->work_ha = 0;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
|
|
/* First, try to post the next mailbox command to SLI4 device */
|
|
if (phba->pci_dev_grp == LPFC_PCI_DEV_OC)
|
|
lpfc_sli4_post_async_mbox(phba);
|
|
|
|
if (ha_copy & HA_ERATT)
|
|
/* Handle the error attention event */
|
|
lpfc_handle_eratt(phba);
|
|
|
|
if (ha_copy & HA_MBATT)
|
|
lpfc_sli_handle_mb_event(phba);
|
|
|
|
if (ha_copy & HA_LATT)
|
|
lpfc_handle_latt(phba);
|
|
|
|
/* Process SLI4 events */
|
|
if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) {
|
|
if (phba->hba_flag & HBA_RRQ_ACTIVE)
|
|
lpfc_handle_rrq_active(phba);
|
|
if (phba->hba_flag & FCP_XRI_ABORT_EVENT)
|
|
lpfc_sli4_fcp_xri_abort_event_proc(phba);
|
|
if (phba->hba_flag & ELS_XRI_ABORT_EVENT)
|
|
lpfc_sli4_els_xri_abort_event_proc(phba);
|
|
if (phba->hba_flag & ASYNC_EVENT)
|
|
lpfc_sli4_async_event_proc(phba);
|
|
if (phba->hba_flag & HBA_POST_RECEIVE_BUFFER) {
|
|
spin_lock_irq(&phba->hbalock);
|
|
phba->hba_flag &= ~HBA_POST_RECEIVE_BUFFER;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ);
|
|
}
|
|
if (phba->fcf.fcf_flag & FCF_REDISC_EVT)
|
|
lpfc_sli4_fcf_redisc_event_proc(phba);
|
|
}
|
|
|
|
vports = lpfc_create_vport_work_array(phba);
|
|
if (vports != NULL)
|
|
for (i = 0; i <= phba->max_vports; i++) {
|
|
/*
|
|
* We could have no vports in array if unloading, so if
|
|
* this happens then just use the pport
|
|
*/
|
|
if (vports[i] == NULL && i == 0)
|
|
vport = phba->pport;
|
|
else
|
|
vport = vports[i];
|
|
if (vport == NULL)
|
|
break;
|
|
spin_lock_irq(&vport->work_port_lock);
|
|
work_port_events = vport->work_port_events;
|
|
vport->work_port_events &= ~work_port_events;
|
|
spin_unlock_irq(&vport->work_port_lock);
|
|
if (work_port_events & WORKER_DISC_TMO)
|
|
lpfc_disc_timeout_handler(vport);
|
|
if (work_port_events & WORKER_ELS_TMO)
|
|
lpfc_els_timeout_handler(vport);
|
|
if (work_port_events & WORKER_HB_TMO)
|
|
lpfc_hb_timeout_handler(phba);
|
|
if (work_port_events & WORKER_MBOX_TMO)
|
|
lpfc_mbox_timeout_handler(phba);
|
|
if (work_port_events & WORKER_FABRIC_BLOCK_TMO)
|
|
lpfc_unblock_fabric_iocbs(phba);
|
|
if (work_port_events & WORKER_FDMI_TMO)
|
|
lpfc_fdmi_timeout_handler(vport);
|
|
if (work_port_events & WORKER_RAMP_DOWN_QUEUE)
|
|
lpfc_ramp_down_queue_handler(phba);
|
|
if (work_port_events & WORKER_DELAYED_DISC_TMO)
|
|
lpfc_delayed_disc_timeout_handler(vport);
|
|
}
|
|
lpfc_destroy_vport_work_array(phba, vports);
|
|
|
|
pring = &phba->sli.ring[LPFC_ELS_RING];
|
|
status = (ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
|
|
status >>= (4*LPFC_ELS_RING);
|
|
if ((status & HA_RXMASK) ||
|
|
(pring->flag & LPFC_DEFERRED_RING_EVENT) ||
|
|
(phba->hba_flag & HBA_SP_QUEUE_EVT)) {
|
|
if (pring->flag & LPFC_STOP_IOCB_EVENT) {
|
|
pring->flag |= LPFC_DEFERRED_RING_EVENT;
|
|
/* Set the lpfc data pending flag */
|
|
set_bit(LPFC_DATA_READY, &phba->data_flags);
|
|
} else {
|
|
if (phba->link_state >= LPFC_LINK_UP) {
|
|
pring->flag &= ~LPFC_DEFERRED_RING_EVENT;
|
|
lpfc_sli_handle_slow_ring_event(phba, pring,
|
|
(status &
|
|
HA_RXMASK));
|
|
}
|
|
}
|
|
if ((phba->sli_rev == LPFC_SLI_REV4) &&
|
|
(!list_empty(&pring->txq)))
|
|
lpfc_drain_txq(phba);
|
|
/*
|
|
* Turn on Ring interrupts
|
|
*/
|
|
if (phba->sli_rev <= LPFC_SLI_REV3) {
|
|
spin_lock_irq(&phba->hbalock);
|
|
control = readl(phba->HCregaddr);
|
|
if (!(control & (HC_R0INT_ENA << LPFC_ELS_RING))) {
|
|
lpfc_debugfs_slow_ring_trc(phba,
|
|
"WRK Enable ring: cntl:x%x hacopy:x%x",
|
|
control, ha_copy, 0);
|
|
|
|
control |= (HC_R0INT_ENA << LPFC_ELS_RING);
|
|
writel(control, phba->HCregaddr);
|
|
readl(phba->HCregaddr); /* flush */
|
|
} else {
|
|
lpfc_debugfs_slow_ring_trc(phba,
|
|
"WRK Ring ok: cntl:x%x hacopy:x%x",
|
|
control, ha_copy, 0);
|
|
}
|
|
spin_unlock_irq(&phba->hbalock);
|
|
}
|
|
}
|
|
lpfc_work_list_done(phba);
|
|
}
|
|
|
|
int
|
|
lpfc_do_work(void *p)
|
|
{
|
|
struct lpfc_hba *phba = p;
|
|
int rc;
|
|
|
|
set_user_nice(current, MIN_NICE);
|
|
current->flags |= PF_NOFREEZE;
|
|
phba->data_flags = 0;
|
|
|
|
while (!kthread_should_stop()) {
|
|
/* wait and check worker queue activities */
|
|
rc = wait_event_interruptible(phba->work_waitq,
|
|
(test_and_clear_bit(LPFC_DATA_READY,
|
|
&phba->data_flags)
|
|
|| kthread_should_stop()));
|
|
/* Signal wakeup shall terminate the worker thread */
|
|
if (rc) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
|
|
"0433 Wakeup on signal: rc=x%x\n", rc);
|
|
break;
|
|
}
|
|
|
|
/* Attend pending lpfc data processing */
|
|
lpfc_work_done(phba);
|
|
}
|
|
phba->worker_thread = NULL;
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
|
|
"0432 Worker thread stopped.\n");
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* This is only called to handle FC worker events. Since this a rare
|
|
* occurrence, we allocate a struct lpfc_work_evt structure here instead of
|
|
* embedding it in the IOCB.
|
|
*/
|
|
int
|
|
lpfc_workq_post_event(struct lpfc_hba *phba, void *arg1, void *arg2,
|
|
uint32_t evt)
|
|
{
|
|
struct lpfc_work_evt *evtp;
|
|
unsigned long flags;
|
|
|
|
/*
|
|
* All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will
|
|
* be queued to worker thread for processing
|
|
*/
|
|
evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_ATOMIC);
|
|
if (!evtp)
|
|
return 0;
|
|
|
|
evtp->evt_arg1 = arg1;
|
|
evtp->evt_arg2 = arg2;
|
|
evtp->evt = evt;
|
|
|
|
spin_lock_irqsave(&phba->hbalock, flags);
|
|
list_add_tail(&evtp->evt_listp, &phba->work_list);
|
|
spin_unlock_irqrestore(&phba->hbalock, flags);
|
|
|
|
lpfc_worker_wake_up(phba);
|
|
|
|
return 1;
|
|
}
|
|
|
|
void
|
|
lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove)
|
|
{
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
struct lpfc_hba *phba = vport->phba;
|
|
struct lpfc_nodelist *ndlp, *next_ndlp;
|
|
int rc;
|
|
|
|
list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
|
|
if (!NLP_CHK_NODE_ACT(ndlp))
|
|
continue;
|
|
if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
|
|
continue;
|
|
if ((phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) ||
|
|
((vport->port_type == LPFC_NPIV_PORT) &&
|
|
(ndlp->nlp_DID == NameServer_DID)))
|
|
lpfc_unreg_rpi(vport, ndlp);
|
|
|
|
/* Leave Fabric nodes alone on link down */
|
|
if ((phba->sli_rev < LPFC_SLI_REV4) &&
|
|
(!remove && ndlp->nlp_type & NLP_FABRIC))
|
|
continue;
|
|
rc = lpfc_disc_state_machine(vport, ndlp, NULL,
|
|
remove
|
|
? NLP_EVT_DEVICE_RM
|
|
: NLP_EVT_DEVICE_RECOVERY);
|
|
}
|
|
if (phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) {
|
|
if (phba->sli_rev == LPFC_SLI_REV4)
|
|
lpfc_sli4_unreg_all_rpis(vport);
|
|
lpfc_mbx_unreg_vpi(vport);
|
|
spin_lock_irq(shost->host_lock);
|
|
vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
|
|
spin_unlock_irq(shost->host_lock);
|
|
}
|
|
}
|
|
|
|
void
|
|
lpfc_port_link_failure(struct lpfc_vport *vport)
|
|
{
|
|
lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN);
|
|
|
|
/* Cleanup any outstanding received buffers */
|
|
lpfc_cleanup_rcv_buffers(vport);
|
|
|
|
/* Cleanup any outstanding RSCN activity */
|
|
lpfc_els_flush_rscn(vport);
|
|
|
|
/* Cleanup any outstanding ELS commands */
|
|
lpfc_els_flush_cmd(vport);
|
|
|
|
lpfc_cleanup_rpis(vport, 0);
|
|
|
|
/* Turn off discovery timer if its running */
|
|
lpfc_can_disctmo(vport);
|
|
}
|
|
|
|
void
|
|
lpfc_linkdown_port(struct lpfc_vport *vport)
|
|
{
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
|
|
fc_host_post_event(shost, fc_get_event_number(), FCH_EVT_LINKDOWN, 0);
|
|
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
|
|
"Link Down: state:x%x rtry:x%x flg:x%x",
|
|
vport->port_state, vport->fc_ns_retry, vport->fc_flag);
|
|
|
|
lpfc_port_link_failure(vport);
|
|
|
|
/* Stop delayed Nport discovery */
|
|
spin_lock_irq(shost->host_lock);
|
|
vport->fc_flag &= ~FC_DISC_DELAYED;
|
|
spin_unlock_irq(shost->host_lock);
|
|
del_timer_sync(&vport->delayed_disc_tmo);
|
|
}
|
|
|
|
int
|
|
lpfc_linkdown(struct lpfc_hba *phba)
|
|
{
|
|
struct lpfc_vport *vport = phba->pport;
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
struct lpfc_vport **vports;
|
|
LPFC_MBOXQ_t *mb;
|
|
int i;
|
|
|
|
if (phba->link_state == LPFC_LINK_DOWN)
|
|
return 0;
|
|
|
|
/* Block all SCSI stack I/Os */
|
|
lpfc_scsi_dev_block(phba);
|
|
|
|
spin_lock_irq(&phba->hbalock);
|
|
phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
|
|
spin_unlock_irq(&phba->hbalock);
|
|
if (phba->link_state > LPFC_LINK_DOWN) {
|
|
phba->link_state = LPFC_LINK_DOWN;
|
|
spin_lock_irq(shost->host_lock);
|
|
phba->pport->fc_flag &= ~FC_LBIT;
|
|
spin_unlock_irq(shost->host_lock);
|
|
}
|
|
vports = lpfc_create_vport_work_array(phba);
|
|
if (vports != NULL)
|
|
for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
|
|
/* Issue a LINK DOWN event to all nodes */
|
|
lpfc_linkdown_port(vports[i]);
|
|
}
|
|
lpfc_destroy_vport_work_array(phba, vports);
|
|
/* Clean up any firmware default rpi's */
|
|
mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (mb) {
|
|
lpfc_unreg_did(phba, 0xffff, LPFC_UNREG_ALL_DFLT_RPIS, mb);
|
|
mb->vport = vport;
|
|
mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
|
|
if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT)
|
|
== MBX_NOT_FINISHED) {
|
|
mempool_free(mb, phba->mbox_mem_pool);
|
|
}
|
|
}
|
|
|
|
/* Setup myDID for link up if we are in pt2pt mode */
|
|
if (phba->pport->fc_flag & FC_PT2PT) {
|
|
phba->pport->fc_myDID = 0;
|
|
mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (mb) {
|
|
lpfc_config_link(phba, mb);
|
|
mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
|
|
mb->vport = vport;
|
|
if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT)
|
|
== MBX_NOT_FINISHED) {
|
|
mempool_free(mb, phba->mbox_mem_pool);
|
|
}
|
|
}
|
|
spin_lock_irq(shost->host_lock);
|
|
phba->pport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI);
|
|
spin_unlock_irq(shost->host_lock);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
lpfc_linkup_cleanup_nodes(struct lpfc_vport *vport)
|
|
{
|
|
struct lpfc_nodelist *ndlp;
|
|
|
|
list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
|
|
if (!NLP_CHK_NODE_ACT(ndlp))
|
|
continue;
|
|
if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
|
|
continue;
|
|
if (ndlp->nlp_type & NLP_FABRIC) {
|
|
/* On Linkup its safe to clean up the ndlp
|
|
* from Fabric connections.
|
|
*/
|
|
if (ndlp->nlp_DID != Fabric_DID)
|
|
lpfc_unreg_rpi(vport, ndlp);
|
|
lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
|
|
} else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
|
|
/* Fail outstanding IO now since device is
|
|
* marked for PLOGI.
|
|
*/
|
|
lpfc_unreg_rpi(vport, ndlp);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
lpfc_linkup_port(struct lpfc_vport *vport)
|
|
{
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
struct lpfc_hba *phba = vport->phba;
|
|
|
|
if ((vport->load_flag & FC_UNLOADING) != 0)
|
|
return;
|
|
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
|
|
"Link Up: top:x%x speed:x%x flg:x%x",
|
|
phba->fc_topology, phba->fc_linkspeed, phba->link_flag);
|
|
|
|
/* If NPIV is not enabled, only bring the physical port up */
|
|
if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
|
|
(vport != phba->pport))
|
|
return;
|
|
|
|
fc_host_post_event(shost, fc_get_event_number(), FCH_EVT_LINKUP, 0);
|
|
|
|
spin_lock_irq(shost->host_lock);
|
|
vport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY |
|
|
FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY);
|
|
vport->fc_flag |= FC_NDISC_ACTIVE;
|
|
vport->fc_ns_retry = 0;
|
|
spin_unlock_irq(shost->host_lock);
|
|
|
|
if (vport->fc_flag & FC_LBIT)
|
|
lpfc_linkup_cleanup_nodes(vport);
|
|
|
|
}
|
|
|
|
static int
|
|
lpfc_linkup(struct lpfc_hba *phba)
|
|
{
|
|
struct lpfc_vport **vports;
|
|
int i;
|
|
|
|
phba->link_state = LPFC_LINK_UP;
|
|
|
|
/* Unblock fabric iocbs if they are blocked */
|
|
clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
|
|
del_timer_sync(&phba->fabric_block_timer);
|
|
|
|
vports = lpfc_create_vport_work_array(phba);
|
|
if (vports != NULL)
|
|
for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
|
|
lpfc_linkup_port(vports[i]);
|
|
lpfc_destroy_vport_work_array(phba, vports);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* This routine handles processing a CLEAR_LA mailbox
|
|
* command upon completion. It is setup in the LPFC_MBOXQ
|
|
* as the completion routine when the command is
|
|
* handed off to the SLI layer.
|
|
*/
|
|
static void
|
|
lpfc_mbx_cmpl_clear_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
|
|
{
|
|
struct lpfc_vport *vport = pmb->vport;
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
struct lpfc_sli *psli = &phba->sli;
|
|
MAILBOX_t *mb = &pmb->u.mb;
|
|
uint32_t control;
|
|
|
|
/* Since we don't do discovery right now, turn these off here */
|
|
psli->ring[psli->extra_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
|
|
psli->ring[psli->fcp_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
|
|
psli->ring[psli->next_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
|
|
|
|
/* Check for error */
|
|
if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) {
|
|
/* CLEAR_LA mbox error <mbxStatus> state <hba_state> */
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
|
|
"0320 CLEAR_LA mbxStatus error x%x hba "
|
|
"state x%x\n",
|
|
mb->mbxStatus, vport->port_state);
|
|
phba->link_state = LPFC_HBA_ERROR;
|
|
goto out;
|
|
}
|
|
|
|
if (vport->port_type == LPFC_PHYSICAL_PORT)
|
|
phba->link_state = LPFC_HBA_READY;
|
|
|
|
spin_lock_irq(&phba->hbalock);
|
|
psli->sli_flag |= LPFC_PROCESS_LA;
|
|
control = readl(phba->HCregaddr);
|
|
control |= HC_LAINT_ENA;
|
|
writel(control, phba->HCregaddr);
|
|
readl(phba->HCregaddr); /* flush */
|
|
spin_unlock_irq(&phba->hbalock);
|
|
mempool_free(pmb, phba->mbox_mem_pool);
|
|
return;
|
|
|
|
out:
|
|
/* Device Discovery completes */
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
|
|
"0225 Device Discovery completes\n");
|
|
mempool_free(pmb, phba->mbox_mem_pool);
|
|
|
|
spin_lock_irq(shost->host_lock);
|
|
vport->fc_flag &= ~FC_ABORT_DISCOVERY;
|
|
spin_unlock_irq(shost->host_lock);
|
|
|
|
lpfc_can_disctmo(vport);
|
|
|
|
/* turn on Link Attention interrupts */
|
|
|
|
spin_lock_irq(&phba->hbalock);
|
|
psli->sli_flag |= LPFC_PROCESS_LA;
|
|
control = readl(phba->HCregaddr);
|
|
control |= HC_LAINT_ENA;
|
|
writel(control, phba->HCregaddr);
|
|
readl(phba->HCregaddr); /* flush */
|
|
spin_unlock_irq(&phba->hbalock);
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
static void
|
|
lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
|
|
{
|
|
struct lpfc_vport *vport = pmb->vport;
|
|
|
|
if (pmb->u.mb.mbxStatus)
|
|
goto out;
|
|
|
|
mempool_free(pmb, phba->mbox_mem_pool);
|
|
|
|
/* don't perform discovery for SLI4 loopback diagnostic test */
|
|
if ((phba->sli_rev == LPFC_SLI_REV4) &&
|
|
!(phba->hba_flag & HBA_FCOE_MODE) &&
|
|
(phba->link_flag & LS_LOOPBACK_MODE))
|
|
return;
|
|
|
|
if (phba->fc_topology == LPFC_TOPOLOGY_LOOP &&
|
|
vport->fc_flag & FC_PUBLIC_LOOP &&
|
|
!(vport->fc_flag & FC_LBIT)) {
|
|
/* Need to wait for FAN - use discovery timer
|
|
* for timeout. port_state is identically
|
|
* LPFC_LOCAL_CFG_LINK while waiting for FAN
|
|
*/
|
|
lpfc_set_disctmo(vport);
|
|
return;
|
|
}
|
|
|
|
/* Start discovery by sending a FLOGI. port_state is identically
|
|
* LPFC_FLOGI while waiting for FLOGI cmpl
|
|
*/
|
|
if (vport->port_state != LPFC_FLOGI || vport->fc_flag & FC_PT2PT_PLOGI)
|
|
lpfc_initial_flogi(vport);
|
|
return;
|
|
|
|
out:
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
|
|
"0306 CONFIG_LINK mbxStatus error x%x "
|
|
"HBA state x%x\n",
|
|
pmb->u.mb.mbxStatus, vport->port_state);
|
|
mempool_free(pmb, phba->mbox_mem_pool);
|
|
|
|
lpfc_linkdown(phba);
|
|
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
|
|
"0200 CONFIG_LINK bad hba state x%x\n",
|
|
vport->port_state);
|
|
|
|
lpfc_issue_clear_la(phba, vport);
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_clear_fcf_rr_bmask
|
|
* @phba pointer to the struct lpfc_hba for this port.
|
|
* This fucnction resets the round robin bit mask and clears the
|
|
* fcf priority list. The list deletions are done while holding the
|
|
* hbalock. The ON_LIST flag and the FLOGI_FAILED flags are cleared
|
|
* from the lpfc_fcf_pri record.
|
|
**/
|
|
void
|
|
lpfc_sli4_clear_fcf_rr_bmask(struct lpfc_hba *phba)
|
|
{
|
|
struct lpfc_fcf_pri *fcf_pri;
|
|
struct lpfc_fcf_pri *next_fcf_pri;
|
|
memset(phba->fcf.fcf_rr_bmask, 0, sizeof(*phba->fcf.fcf_rr_bmask));
|
|
spin_lock_irq(&phba->hbalock);
|
|
list_for_each_entry_safe(fcf_pri, next_fcf_pri,
|
|
&phba->fcf.fcf_pri_list, list) {
|
|
list_del_init(&fcf_pri->list);
|
|
fcf_pri->fcf_rec.flag = 0;
|
|
}
|
|
spin_unlock_irq(&phba->hbalock);
|
|
}
|
|
static void
|
|
lpfc_mbx_cmpl_reg_fcfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
|
|
{
|
|
struct lpfc_vport *vport = mboxq->vport;
|
|
|
|
if (mboxq->u.mb.mbxStatus) {
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
|
|
"2017 REG_FCFI mbxStatus error x%x "
|
|
"HBA state x%x\n",
|
|
mboxq->u.mb.mbxStatus, vport->port_state);
|
|
goto fail_out;
|
|
}
|
|
|
|
/* Start FCoE discovery by sending a FLOGI. */
|
|
phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi, &mboxq->u.mqe.un.reg_fcfi);
|
|
/* Set the FCFI registered flag */
|
|
spin_lock_irq(&phba->hbalock);
|
|
phba->fcf.fcf_flag |= FCF_REGISTERED;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
|
|
/* If there is a pending FCoE event, restart FCF table scan. */
|
|
if ((!(phba->hba_flag & FCF_RR_INPROG)) &&
|
|
lpfc_check_pending_fcoe_event(phba, LPFC_UNREG_FCF))
|
|
goto fail_out;
|
|
|
|
/* Mark successful completion of FCF table scan */
|
|
spin_lock_irq(&phba->hbalock);
|
|
phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE);
|
|
phba->hba_flag &= ~FCF_TS_INPROG;
|
|
if (vport->port_state != LPFC_FLOGI) {
|
|
phba->hba_flag |= FCF_RR_INPROG;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
lpfc_issue_init_vfi(vport);
|
|
goto out;
|
|
}
|
|
spin_unlock_irq(&phba->hbalock);
|
|
goto out;
|
|
|
|
fail_out:
|
|
spin_lock_irq(&phba->hbalock);
|
|
phba->hba_flag &= ~FCF_RR_INPROG;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
out:
|
|
mempool_free(mboxq, phba->mbox_mem_pool);
|
|
}
|
|
|
|
/**
|
|
* lpfc_fab_name_match - Check if the fcf fabric name match.
|
|
* @fab_name: pointer to fabric name.
|
|
* @new_fcf_record: pointer to fcf record.
|
|
*
|
|
* This routine compare the fcf record's fabric name with provided
|
|
* fabric name. If the fabric name are identical this function
|
|
* returns 1 else return 0.
|
|
**/
|
|
static uint32_t
|
|
lpfc_fab_name_match(uint8_t *fab_name, struct fcf_record *new_fcf_record)
|
|
{
|
|
if (fab_name[0] != bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record))
|
|
return 0;
|
|
if (fab_name[1] != bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record))
|
|
return 0;
|
|
if (fab_name[2] != bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record))
|
|
return 0;
|
|
if (fab_name[3] != bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record))
|
|
return 0;
|
|
if (fab_name[4] != bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record))
|
|
return 0;
|
|
if (fab_name[5] != bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record))
|
|
return 0;
|
|
if (fab_name[6] != bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record))
|
|
return 0;
|
|
if (fab_name[7] != bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record))
|
|
return 0;
|
|
return 1;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sw_name_match - Check if the fcf switch name match.
|
|
* @fab_name: pointer to fabric name.
|
|
* @new_fcf_record: pointer to fcf record.
|
|
*
|
|
* This routine compare the fcf record's switch name with provided
|
|
* switch name. If the switch name are identical this function
|
|
* returns 1 else return 0.
|
|
**/
|
|
static uint32_t
|
|
lpfc_sw_name_match(uint8_t *sw_name, struct fcf_record *new_fcf_record)
|
|
{
|
|
if (sw_name[0] != bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record))
|
|
return 0;
|
|
if (sw_name[1] != bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record))
|
|
return 0;
|
|
if (sw_name[2] != bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record))
|
|
return 0;
|
|
if (sw_name[3] != bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record))
|
|
return 0;
|
|
if (sw_name[4] != bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record))
|
|
return 0;
|
|
if (sw_name[5] != bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record))
|
|
return 0;
|
|
if (sw_name[6] != bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record))
|
|
return 0;
|
|
if (sw_name[7] != bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record))
|
|
return 0;
|
|
return 1;
|
|
}
|
|
|
|
/**
|
|
* lpfc_mac_addr_match - Check if the fcf mac address match.
|
|
* @mac_addr: pointer to mac address.
|
|
* @new_fcf_record: pointer to fcf record.
|
|
*
|
|
* This routine compare the fcf record's mac address with HBA's
|
|
* FCF mac address. If the mac addresses are identical this function
|
|
* returns 1 else return 0.
|
|
**/
|
|
static uint32_t
|
|
lpfc_mac_addr_match(uint8_t *mac_addr, struct fcf_record *new_fcf_record)
|
|
{
|
|
if (mac_addr[0] != bf_get(lpfc_fcf_record_mac_0, new_fcf_record))
|
|
return 0;
|
|
if (mac_addr[1] != bf_get(lpfc_fcf_record_mac_1, new_fcf_record))
|
|
return 0;
|
|
if (mac_addr[2] != bf_get(lpfc_fcf_record_mac_2, new_fcf_record))
|
|
return 0;
|
|
if (mac_addr[3] != bf_get(lpfc_fcf_record_mac_3, new_fcf_record))
|
|
return 0;
|
|
if (mac_addr[4] != bf_get(lpfc_fcf_record_mac_4, new_fcf_record))
|
|
return 0;
|
|
if (mac_addr[5] != bf_get(lpfc_fcf_record_mac_5, new_fcf_record))
|
|
return 0;
|
|
return 1;
|
|
}
|
|
|
|
static bool
|
|
lpfc_vlan_id_match(uint16_t curr_vlan_id, uint16_t new_vlan_id)
|
|
{
|
|
return (curr_vlan_id == new_vlan_id);
|
|
}
|
|
|
|
/**
|
|
* lpfc_update_fcf_record - Update driver fcf record
|
|
* __lpfc_update_fcf_record_pri - update the lpfc_fcf_pri record.
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @fcf_index: Index for the lpfc_fcf_record.
|
|
* @new_fcf_record: pointer to hba fcf record.
|
|
*
|
|
* This routine updates the driver FCF priority record from the new HBA FCF
|
|
* record. This routine is called with the host lock held.
|
|
**/
|
|
static void
|
|
__lpfc_update_fcf_record_pri(struct lpfc_hba *phba, uint16_t fcf_index,
|
|
struct fcf_record *new_fcf_record
|
|
)
|
|
{
|
|
struct lpfc_fcf_pri *fcf_pri;
|
|
|
|
fcf_pri = &phba->fcf.fcf_pri[fcf_index];
|
|
fcf_pri->fcf_rec.fcf_index = fcf_index;
|
|
/* FCF record priority */
|
|
fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority;
|
|
|
|
}
|
|
|
|
/**
|
|
* lpfc_copy_fcf_record - Copy fcf information to lpfc_hba.
|
|
* @fcf: pointer to driver fcf record.
|
|
* @new_fcf_record: pointer to fcf record.
|
|
*
|
|
* This routine copies the FCF information from the FCF
|
|
* record to lpfc_hba data structure.
|
|
**/
|
|
static void
|
|
lpfc_copy_fcf_record(struct lpfc_fcf_rec *fcf_rec,
|
|
struct fcf_record *new_fcf_record)
|
|
{
|
|
/* Fabric name */
|
|
fcf_rec->fabric_name[0] =
|
|
bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record);
|
|
fcf_rec->fabric_name[1] =
|
|
bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record);
|
|
fcf_rec->fabric_name[2] =
|
|
bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record);
|
|
fcf_rec->fabric_name[3] =
|
|
bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record);
|
|
fcf_rec->fabric_name[4] =
|
|
bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record);
|
|
fcf_rec->fabric_name[5] =
|
|
bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record);
|
|
fcf_rec->fabric_name[6] =
|
|
bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record);
|
|
fcf_rec->fabric_name[7] =
|
|
bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record);
|
|
/* Mac address */
|
|
fcf_rec->mac_addr[0] = bf_get(lpfc_fcf_record_mac_0, new_fcf_record);
|
|
fcf_rec->mac_addr[1] = bf_get(lpfc_fcf_record_mac_1, new_fcf_record);
|
|
fcf_rec->mac_addr[2] = bf_get(lpfc_fcf_record_mac_2, new_fcf_record);
|
|
fcf_rec->mac_addr[3] = bf_get(lpfc_fcf_record_mac_3, new_fcf_record);
|
|
fcf_rec->mac_addr[4] = bf_get(lpfc_fcf_record_mac_4, new_fcf_record);
|
|
fcf_rec->mac_addr[5] = bf_get(lpfc_fcf_record_mac_5, new_fcf_record);
|
|
/* FCF record index */
|
|
fcf_rec->fcf_indx = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
|
|
/* FCF record priority */
|
|
fcf_rec->priority = new_fcf_record->fip_priority;
|
|
/* Switch name */
|
|
fcf_rec->switch_name[0] =
|
|
bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record);
|
|
fcf_rec->switch_name[1] =
|
|
bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record);
|
|
fcf_rec->switch_name[2] =
|
|
bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record);
|
|
fcf_rec->switch_name[3] =
|
|
bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record);
|
|
fcf_rec->switch_name[4] =
|
|
bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record);
|
|
fcf_rec->switch_name[5] =
|
|
bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record);
|
|
fcf_rec->switch_name[6] =
|
|
bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record);
|
|
fcf_rec->switch_name[7] =
|
|
bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record);
|
|
}
|
|
|
|
/**
|
|
* lpfc_update_fcf_record - Update driver fcf record
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @fcf_rec: pointer to driver fcf record.
|
|
* @new_fcf_record: pointer to hba fcf record.
|
|
* @addr_mode: address mode to be set to the driver fcf record.
|
|
* @vlan_id: vlan tag to be set to the driver fcf record.
|
|
* @flag: flag bits to be set to the driver fcf record.
|
|
*
|
|
* This routine updates the driver FCF record from the new HBA FCF record
|
|
* together with the address mode, vlan_id, and other informations. This
|
|
* routine is called with the host lock held.
|
|
**/
|
|
static void
|
|
__lpfc_update_fcf_record(struct lpfc_hba *phba, struct lpfc_fcf_rec *fcf_rec,
|
|
struct fcf_record *new_fcf_record, uint32_t addr_mode,
|
|
uint16_t vlan_id, uint32_t flag)
|
|
{
|
|
/* Copy the fields from the HBA's FCF record */
|
|
lpfc_copy_fcf_record(fcf_rec, new_fcf_record);
|
|
/* Update other fields of driver FCF record */
|
|
fcf_rec->addr_mode = addr_mode;
|
|
fcf_rec->vlan_id = vlan_id;
|
|
fcf_rec->flag |= (flag | RECORD_VALID);
|
|
__lpfc_update_fcf_record_pri(phba,
|
|
bf_get(lpfc_fcf_record_fcf_index, new_fcf_record),
|
|
new_fcf_record);
|
|
}
|
|
|
|
/**
|
|
* lpfc_register_fcf - Register the FCF with hba.
|
|
* @phba: pointer to lpfc hba data structure.
|
|
*
|
|
* This routine issues a register fcfi mailbox command to register
|
|
* the fcf with HBA.
|
|
**/
|
|
static void
|
|
lpfc_register_fcf(struct lpfc_hba *phba)
|
|
{
|
|
LPFC_MBOXQ_t *fcf_mbxq;
|
|
int rc;
|
|
|
|
spin_lock_irq(&phba->hbalock);
|
|
/* If the FCF is not available do nothing. */
|
|
if (!(phba->fcf.fcf_flag & FCF_AVAILABLE)) {
|
|
phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG);
|
|
spin_unlock_irq(&phba->hbalock);
|
|
return;
|
|
}
|
|
|
|
/* The FCF is already registered, start discovery */
|
|
if (phba->fcf.fcf_flag & FCF_REGISTERED) {
|
|
phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE);
|
|
phba->hba_flag &= ~FCF_TS_INPROG;
|
|
if (phba->pport->port_state != LPFC_FLOGI &&
|
|
phba->pport->fc_flag & FC_FABRIC) {
|
|
phba->hba_flag |= FCF_RR_INPROG;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
lpfc_initial_flogi(phba->pport);
|
|
return;
|
|
}
|
|
spin_unlock_irq(&phba->hbalock);
|
|
return;
|
|
}
|
|
spin_unlock_irq(&phba->hbalock);
|
|
|
|
fcf_mbxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (!fcf_mbxq) {
|
|
spin_lock_irq(&phba->hbalock);
|
|
phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG);
|
|
spin_unlock_irq(&phba->hbalock);
|
|
return;
|
|
}
|
|
|
|
lpfc_reg_fcfi(phba, fcf_mbxq);
|
|
fcf_mbxq->vport = phba->pport;
|
|
fcf_mbxq->mbox_cmpl = lpfc_mbx_cmpl_reg_fcfi;
|
|
rc = lpfc_sli_issue_mbox(phba, fcf_mbxq, MBX_NOWAIT);
|
|
if (rc == MBX_NOT_FINISHED) {
|
|
spin_lock_irq(&phba->hbalock);
|
|
phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG);
|
|
spin_unlock_irq(&phba->hbalock);
|
|
mempool_free(fcf_mbxq, phba->mbox_mem_pool);
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* lpfc_match_fcf_conn_list - Check if the FCF record can be used for discovery.
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @new_fcf_record: pointer to fcf record.
|
|
* @boot_flag: Indicates if this record used by boot bios.
|
|
* @addr_mode: The address mode to be used by this FCF
|
|
* @vlan_id: The vlan id to be used as vlan tagging by this FCF.
|
|
*
|
|
* This routine compare the fcf record with connect list obtained from the
|
|
* config region to decide if this FCF can be used for SAN discovery. It returns
|
|
* 1 if this record can be used for SAN discovery else return zero. If this FCF
|
|
* record can be used for SAN discovery, the boot_flag will indicate if this FCF
|
|
* is used by boot bios and addr_mode will indicate the addressing mode to be
|
|
* used for this FCF when the function returns.
|
|
* If the FCF record need to be used with a particular vlan id, the vlan is
|
|
* set in the vlan_id on return of the function. If not VLAN tagging need to
|
|
* be used with the FCF vlan_id will be set to LPFC_FCOE_NULL_VID;
|
|
**/
|
|
static int
|
|
lpfc_match_fcf_conn_list(struct lpfc_hba *phba,
|
|
struct fcf_record *new_fcf_record,
|
|
uint32_t *boot_flag, uint32_t *addr_mode,
|
|
uint16_t *vlan_id)
|
|
{
|
|
struct lpfc_fcf_conn_entry *conn_entry;
|
|
int i, j, fcf_vlan_id = 0;
|
|
|
|
/* Find the lowest VLAN id in the FCF record */
|
|
for (i = 0; i < 512; i++) {
|
|
if (new_fcf_record->vlan_bitmap[i]) {
|
|
fcf_vlan_id = i * 8;
|
|
j = 0;
|
|
while (!((new_fcf_record->vlan_bitmap[i] >> j) & 1)) {
|
|
j++;
|
|
fcf_vlan_id++;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* FCF not valid/available or solicitation in progress */
|
|
if (!bf_get(lpfc_fcf_record_fcf_avail, new_fcf_record) ||
|
|
!bf_get(lpfc_fcf_record_fcf_valid, new_fcf_record) ||
|
|
bf_get(lpfc_fcf_record_fcf_sol, new_fcf_record))
|
|
return 0;
|
|
|
|
if (!(phba->hba_flag & HBA_FIP_SUPPORT)) {
|
|
*boot_flag = 0;
|
|
*addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
|
|
new_fcf_record);
|
|
if (phba->valid_vlan)
|
|
*vlan_id = phba->vlan_id;
|
|
else
|
|
*vlan_id = LPFC_FCOE_NULL_VID;
|
|
return 1;
|
|
}
|
|
|
|
/*
|
|
* If there are no FCF connection table entry, driver connect to all
|
|
* FCFs.
|
|
*/
|
|
if (list_empty(&phba->fcf_conn_rec_list)) {
|
|
*boot_flag = 0;
|
|
*addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
|
|
new_fcf_record);
|
|
|
|
/*
|
|
* When there are no FCF connect entries, use driver's default
|
|
* addressing mode - FPMA.
|
|
*/
|
|
if (*addr_mode & LPFC_FCF_FPMA)
|
|
*addr_mode = LPFC_FCF_FPMA;
|
|
|
|
/* If FCF record report a vlan id use that vlan id */
|
|
if (fcf_vlan_id)
|
|
*vlan_id = fcf_vlan_id;
|
|
else
|
|
*vlan_id = LPFC_FCOE_NULL_VID;
|
|
return 1;
|
|
}
|
|
|
|
list_for_each_entry(conn_entry,
|
|
&phba->fcf_conn_rec_list, list) {
|
|
if (!(conn_entry->conn_rec.flags & FCFCNCT_VALID))
|
|
continue;
|
|
|
|
if ((conn_entry->conn_rec.flags & FCFCNCT_FBNM_VALID) &&
|
|
!lpfc_fab_name_match(conn_entry->conn_rec.fabric_name,
|
|
new_fcf_record))
|
|
continue;
|
|
if ((conn_entry->conn_rec.flags & FCFCNCT_SWNM_VALID) &&
|
|
!lpfc_sw_name_match(conn_entry->conn_rec.switch_name,
|
|
new_fcf_record))
|
|
continue;
|
|
if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) {
|
|
/*
|
|
* If the vlan bit map does not have the bit set for the
|
|
* vlan id to be used, then it is not a match.
|
|
*/
|
|
if (!(new_fcf_record->vlan_bitmap
|
|
[conn_entry->conn_rec.vlan_tag / 8] &
|
|
(1 << (conn_entry->conn_rec.vlan_tag % 8))))
|
|
continue;
|
|
}
|
|
|
|
/*
|
|
* If connection record does not support any addressing mode,
|
|
* skip the FCF record.
|
|
*/
|
|
if (!(bf_get(lpfc_fcf_record_mac_addr_prov, new_fcf_record)
|
|
& (LPFC_FCF_FPMA | LPFC_FCF_SPMA)))
|
|
continue;
|
|
|
|
/*
|
|
* Check if the connection record specifies a required
|
|
* addressing mode.
|
|
*/
|
|
if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
|
|
!(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)) {
|
|
|
|
/*
|
|
* If SPMA required but FCF not support this continue.
|
|
*/
|
|
if ((conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
|
|
!(bf_get(lpfc_fcf_record_mac_addr_prov,
|
|
new_fcf_record) & LPFC_FCF_SPMA))
|
|
continue;
|
|
|
|
/*
|
|
* If FPMA required but FCF not support this continue.
|
|
*/
|
|
if (!(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
|
|
!(bf_get(lpfc_fcf_record_mac_addr_prov,
|
|
new_fcf_record) & LPFC_FCF_FPMA))
|
|
continue;
|
|
}
|
|
|
|
/*
|
|
* This fcf record matches filtering criteria.
|
|
*/
|
|
if (conn_entry->conn_rec.flags & FCFCNCT_BOOT)
|
|
*boot_flag = 1;
|
|
else
|
|
*boot_flag = 0;
|
|
|
|
/*
|
|
* If user did not specify any addressing mode, or if the
|
|
* preferred addressing mode specified by user is not supported
|
|
* by FCF, allow fabric to pick the addressing mode.
|
|
*/
|
|
*addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
|
|
new_fcf_record);
|
|
/*
|
|
* If the user specified a required address mode, assign that
|
|
* address mode
|
|
*/
|
|
if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
|
|
(!(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)))
|
|
*addr_mode = (conn_entry->conn_rec.flags &
|
|
FCFCNCT_AM_SPMA) ?
|
|
LPFC_FCF_SPMA : LPFC_FCF_FPMA;
|
|
/*
|
|
* If the user specified a preferred address mode, use the
|
|
* addr mode only if FCF support the addr_mode.
|
|
*/
|
|
else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
|
|
(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) &&
|
|
(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
|
|
(*addr_mode & LPFC_FCF_SPMA))
|
|
*addr_mode = LPFC_FCF_SPMA;
|
|
else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
|
|
(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) &&
|
|
!(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
|
|
(*addr_mode & LPFC_FCF_FPMA))
|
|
*addr_mode = LPFC_FCF_FPMA;
|
|
|
|
/* If matching connect list has a vlan id, use it */
|
|
if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID)
|
|
*vlan_id = conn_entry->conn_rec.vlan_tag;
|
|
/*
|
|
* If no vlan id is specified in connect list, use the vlan id
|
|
* in the FCF record
|
|
*/
|
|
else if (fcf_vlan_id)
|
|
*vlan_id = fcf_vlan_id;
|
|
else
|
|
*vlan_id = LPFC_FCOE_NULL_VID;
|
|
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_check_pending_fcoe_event - Check if there is pending fcoe event.
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @unreg_fcf: Unregister FCF if FCF table need to be re-scaned.
|
|
*
|
|
* This function check if there is any fcoe event pending while driver
|
|
* scan FCF entries. If there is any pending event, it will restart the
|
|
* FCF saning and return 1 else return 0.
|
|
*/
|
|
int
|
|
lpfc_check_pending_fcoe_event(struct lpfc_hba *phba, uint8_t unreg_fcf)
|
|
{
|
|
/*
|
|
* If the Link is up and no FCoE events while in the
|
|
* FCF discovery, no need to restart FCF discovery.
|
|
*/
|
|
if ((phba->link_state >= LPFC_LINK_UP) &&
|
|
(phba->fcoe_eventtag == phba->fcoe_eventtag_at_fcf_scan))
|
|
return 0;
|
|
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
|
|
"2768 Pending link or FCF event during current "
|
|
"handling of the previous event: link_state:x%x, "
|
|
"evt_tag_at_scan:x%x, evt_tag_current:x%x\n",
|
|
phba->link_state, phba->fcoe_eventtag_at_fcf_scan,
|
|
phba->fcoe_eventtag);
|
|
|
|
spin_lock_irq(&phba->hbalock);
|
|
phba->fcf.fcf_flag &= ~FCF_AVAILABLE;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
|
|
if (phba->link_state >= LPFC_LINK_UP) {
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
|
|
"2780 Restart FCF table scan due to "
|
|
"pending FCF event:evt_tag_at_scan:x%x, "
|
|
"evt_tag_current:x%x\n",
|
|
phba->fcoe_eventtag_at_fcf_scan,
|
|
phba->fcoe_eventtag);
|
|
lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
|
|
} else {
|
|
/*
|
|
* Do not continue FCF discovery and clear FCF_TS_INPROG
|
|
* flag
|
|
*/
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
|
|
"2833 Stop FCF discovery process due to link "
|
|
"state change (x%x)\n", phba->link_state);
|
|
spin_lock_irq(&phba->hbalock);
|
|
phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG);
|
|
phba->fcf.fcf_flag &= ~(FCF_REDISC_FOV | FCF_DISCOVERY);
|
|
spin_unlock_irq(&phba->hbalock);
|
|
}
|
|
|
|
/* Unregister the currently registered FCF if required */
|
|
if (unreg_fcf) {
|
|
spin_lock_irq(&phba->hbalock);
|
|
phba->fcf.fcf_flag &= ~FCF_REGISTERED;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
lpfc_sli4_unregister_fcf(phba);
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_new_fcf_random_select - Randomly select an eligible new fcf record
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @fcf_cnt: number of eligible fcf record seen so far.
|
|
*
|
|
* This function makes an running random selection decision on FCF record to
|
|
* use through a sequence of @fcf_cnt eligible FCF records with equal
|
|
* probability. To perform integer manunipulation of random numbers with
|
|
* size unit32_t, the lower 16 bits of the 32-bit random number returned
|
|
* from prandom_u32() are taken as the random random number generated.
|
|
*
|
|
* Returns true when outcome is for the newly read FCF record should be
|
|
* chosen; otherwise, return false when outcome is for keeping the previously
|
|
* chosen FCF record.
|
|
**/
|
|
static bool
|
|
lpfc_sli4_new_fcf_random_select(struct lpfc_hba *phba, uint32_t fcf_cnt)
|
|
{
|
|
uint32_t rand_num;
|
|
|
|
/* Get 16-bit uniform random number */
|
|
rand_num = 0xFFFF & prandom_u32();
|
|
|
|
/* Decision with probability 1/fcf_cnt */
|
|
if ((fcf_cnt * rand_num) < 0xFFFF)
|
|
return true;
|
|
else
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_fcf_rec_mbox_parse - Parse read_fcf mbox command.
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @mboxq: pointer to mailbox object.
|
|
* @next_fcf_index: pointer to holder of next fcf index.
|
|
*
|
|
* This routine parses the non-embedded fcf mailbox command by performing the
|
|
* necessarily error checking, non-embedded read FCF record mailbox command
|
|
* SGE parsing, and endianness swapping.
|
|
*
|
|
* Returns the pointer to the new FCF record in the non-embedded mailbox
|
|
* command DMA memory if successfully, other NULL.
|
|
*/
|
|
static struct fcf_record *
|
|
lpfc_sli4_fcf_rec_mbox_parse(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
|
|
uint16_t *next_fcf_index)
|
|
{
|
|
void *virt_addr;
|
|
dma_addr_t phys_addr;
|
|
struct lpfc_mbx_sge sge;
|
|
struct lpfc_mbx_read_fcf_tbl *read_fcf;
|
|
uint32_t shdr_status, shdr_add_status, if_type;
|
|
union lpfc_sli4_cfg_shdr *shdr;
|
|
struct fcf_record *new_fcf_record;
|
|
|
|
/* Get the first SGE entry from the non-embedded DMA memory. This
|
|
* routine only uses a single SGE.
|
|
*/
|
|
lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
|
|
phys_addr = getPaddr(sge.pa_hi, sge.pa_lo);
|
|
if (unlikely(!mboxq->sge_array)) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
|
|
"2524 Failed to get the non-embedded SGE "
|
|
"virtual address\n");
|
|
return NULL;
|
|
}
|
|
virt_addr = mboxq->sge_array->addr[0];
|
|
|
|
shdr = (union lpfc_sli4_cfg_shdr *)virt_addr;
|
|
lpfc_sli_pcimem_bcopy(shdr, shdr,
|
|
sizeof(union lpfc_sli4_cfg_shdr));
|
|
shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
|
|
if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
|
|
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
|
|
if (shdr_status || shdr_add_status) {
|
|
if (shdr_status == STATUS_FCF_TABLE_EMPTY ||
|
|
if_type == LPFC_SLI_INTF_IF_TYPE_2)
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
|
|
"2726 READ_FCF_RECORD Indicates empty "
|
|
"FCF table.\n");
|
|
else
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
|
|
"2521 READ_FCF_RECORD mailbox failed "
|
|
"with status x%x add_status x%x, "
|
|
"mbx\n", shdr_status, shdr_add_status);
|
|
return NULL;
|
|
}
|
|
|
|
/* Interpreting the returned information of the FCF record */
|
|
read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr;
|
|
lpfc_sli_pcimem_bcopy(read_fcf, read_fcf,
|
|
sizeof(struct lpfc_mbx_read_fcf_tbl));
|
|
*next_fcf_index = bf_get(lpfc_mbx_read_fcf_tbl_nxt_vindx, read_fcf);
|
|
new_fcf_record = (struct fcf_record *)(virt_addr +
|
|
sizeof(struct lpfc_mbx_read_fcf_tbl));
|
|
lpfc_sli_pcimem_bcopy(new_fcf_record, new_fcf_record,
|
|
offsetof(struct fcf_record, vlan_bitmap));
|
|
new_fcf_record->word137 = le32_to_cpu(new_fcf_record->word137);
|
|
new_fcf_record->word138 = le32_to_cpu(new_fcf_record->word138);
|
|
|
|
return new_fcf_record;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_log_fcf_record_info - Log the information of a fcf record
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @fcf_record: pointer to the fcf record.
|
|
* @vlan_id: the lowest vlan identifier associated to this fcf record.
|
|
* @next_fcf_index: the index to the next fcf record in hba's fcf table.
|
|
*
|
|
* This routine logs the detailed FCF record if the LOG_FIP loggin is
|
|
* enabled.
|
|
**/
|
|
static void
|
|
lpfc_sli4_log_fcf_record_info(struct lpfc_hba *phba,
|
|
struct fcf_record *fcf_record,
|
|
uint16_t vlan_id,
|
|
uint16_t next_fcf_index)
|
|
{
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
|
|
"2764 READ_FCF_RECORD:\n"
|
|
"\tFCF_Index : x%x\n"
|
|
"\tFCF_Avail : x%x\n"
|
|
"\tFCF_Valid : x%x\n"
|
|
"\tFCF_SOL : x%x\n"
|
|
"\tFIP_Priority : x%x\n"
|
|
"\tMAC_Provider : x%x\n"
|
|
"\tLowest VLANID : x%x\n"
|
|
"\tFCF_MAC Addr : x%x:%x:%x:%x:%x:%x\n"
|
|
"\tFabric_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n"
|
|
"\tSwitch_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n"
|
|
"\tNext_FCF_Index: x%x\n",
|
|
bf_get(lpfc_fcf_record_fcf_index, fcf_record),
|
|
bf_get(lpfc_fcf_record_fcf_avail, fcf_record),
|
|
bf_get(lpfc_fcf_record_fcf_valid, fcf_record),
|
|
bf_get(lpfc_fcf_record_fcf_sol, fcf_record),
|
|
fcf_record->fip_priority,
|
|
bf_get(lpfc_fcf_record_mac_addr_prov, fcf_record),
|
|
vlan_id,
|
|
bf_get(lpfc_fcf_record_mac_0, fcf_record),
|
|
bf_get(lpfc_fcf_record_mac_1, fcf_record),
|
|
bf_get(lpfc_fcf_record_mac_2, fcf_record),
|
|
bf_get(lpfc_fcf_record_mac_3, fcf_record),
|
|
bf_get(lpfc_fcf_record_mac_4, fcf_record),
|
|
bf_get(lpfc_fcf_record_mac_5, fcf_record),
|
|
bf_get(lpfc_fcf_record_fab_name_0, fcf_record),
|
|
bf_get(lpfc_fcf_record_fab_name_1, fcf_record),
|
|
bf_get(lpfc_fcf_record_fab_name_2, fcf_record),
|
|
bf_get(lpfc_fcf_record_fab_name_3, fcf_record),
|
|
bf_get(lpfc_fcf_record_fab_name_4, fcf_record),
|
|
bf_get(lpfc_fcf_record_fab_name_5, fcf_record),
|
|
bf_get(lpfc_fcf_record_fab_name_6, fcf_record),
|
|
bf_get(lpfc_fcf_record_fab_name_7, fcf_record),
|
|
bf_get(lpfc_fcf_record_switch_name_0, fcf_record),
|
|
bf_get(lpfc_fcf_record_switch_name_1, fcf_record),
|
|
bf_get(lpfc_fcf_record_switch_name_2, fcf_record),
|
|
bf_get(lpfc_fcf_record_switch_name_3, fcf_record),
|
|
bf_get(lpfc_fcf_record_switch_name_4, fcf_record),
|
|
bf_get(lpfc_fcf_record_switch_name_5, fcf_record),
|
|
bf_get(lpfc_fcf_record_switch_name_6, fcf_record),
|
|
bf_get(lpfc_fcf_record_switch_name_7, fcf_record),
|
|
next_fcf_index);
|
|
}
|
|
|
|
/**
|
|
lpfc_sli4_fcf_record_match - testing new FCF record for matching existing FCF
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @fcf_rec: pointer to an existing FCF record.
|
|
* @new_fcf_record: pointer to a new FCF record.
|
|
* @new_vlan_id: vlan id from the new FCF record.
|
|
*
|
|
* This function performs matching test of a new FCF record against an existing
|
|
* FCF record. If the new_vlan_id passed in is LPFC_FCOE_IGNORE_VID, vlan id
|
|
* will not be used as part of the FCF record matching criteria.
|
|
*
|
|
* Returns true if all the fields matching, otherwise returns false.
|
|
*/
|
|
static bool
|
|
lpfc_sli4_fcf_record_match(struct lpfc_hba *phba,
|
|
struct lpfc_fcf_rec *fcf_rec,
|
|
struct fcf_record *new_fcf_record,
|
|
uint16_t new_vlan_id)
|
|
{
|
|
if (new_vlan_id != LPFC_FCOE_IGNORE_VID)
|
|
if (!lpfc_vlan_id_match(fcf_rec->vlan_id, new_vlan_id))
|
|
return false;
|
|
if (!lpfc_mac_addr_match(fcf_rec->mac_addr, new_fcf_record))
|
|
return false;
|
|
if (!lpfc_sw_name_match(fcf_rec->switch_name, new_fcf_record))
|
|
return false;
|
|
if (!lpfc_fab_name_match(fcf_rec->fabric_name, new_fcf_record))
|
|
return false;
|
|
if (fcf_rec->priority != new_fcf_record->fip_priority)
|
|
return false;
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_fcf_rr_next_proc - processing next roundrobin fcf
|
|
* @vport: Pointer to vport object.
|
|
* @fcf_index: index to next fcf.
|
|
*
|
|
* This function processing the roundrobin fcf failover to next fcf index.
|
|
* When this function is invoked, there will be a current fcf registered
|
|
* for flogi.
|
|
* Return: 0 for continue retrying flogi on currently registered fcf;
|
|
* 1 for stop flogi on currently registered fcf;
|
|
*/
|
|
int lpfc_sli4_fcf_rr_next_proc(struct lpfc_vport *vport, uint16_t fcf_index)
|
|
{
|
|
struct lpfc_hba *phba = vport->phba;
|
|
int rc;
|
|
|
|
if (fcf_index == LPFC_FCOE_FCF_NEXT_NONE) {
|
|
spin_lock_irq(&phba->hbalock);
|
|
if (phba->hba_flag & HBA_DEVLOSS_TMO) {
|
|
spin_unlock_irq(&phba->hbalock);
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
|
|
"2872 Devloss tmo with no eligible "
|
|
"FCF, unregister in-use FCF (x%x) "
|
|
"and rescan FCF table\n",
|
|
phba->fcf.current_rec.fcf_indx);
|
|
lpfc_unregister_fcf_rescan(phba);
|
|
goto stop_flogi_current_fcf;
|
|
}
|
|
/* Mark the end to FLOGI roundrobin failover */
|
|
phba->hba_flag &= ~FCF_RR_INPROG;
|
|
/* Allow action to new fcf asynchronous event */
|
|
phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
|
|
spin_unlock_irq(&phba->hbalock);
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
|
|
"2865 No FCF available, stop roundrobin FCF "
|
|
"failover and change port state:x%x/x%x\n",
|
|
phba->pport->port_state, LPFC_VPORT_UNKNOWN);
|
|
phba->pport->port_state = LPFC_VPORT_UNKNOWN;
|
|
goto stop_flogi_current_fcf;
|
|
} else {
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_ELS,
|
|
"2794 Try FLOGI roundrobin FCF failover to "
|
|
"(x%x)\n", fcf_index);
|
|
rc = lpfc_sli4_fcf_rr_read_fcf_rec(phba, fcf_index);
|
|
if (rc)
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS,
|
|
"2761 FLOGI roundrobin FCF failover "
|
|
"failed (rc:x%x) to read FCF (x%x)\n",
|
|
rc, phba->fcf.current_rec.fcf_indx);
|
|
else
|
|
goto stop_flogi_current_fcf;
|
|
}
|
|
return 0;
|
|
|
|
stop_flogi_current_fcf:
|
|
lpfc_can_disctmo(vport);
|
|
return 1;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_fcf_pri_list_del
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @fcf_index the index of the fcf record to delete
|
|
* This routine checks the on list flag of the fcf_index to be deleted.
|
|
* If it is one the list then it is removed from the list, and the flag
|
|
* is cleared. This routine grab the hbalock before removing the fcf
|
|
* record from the list.
|
|
**/
|
|
static void lpfc_sli4_fcf_pri_list_del(struct lpfc_hba *phba,
|
|
uint16_t fcf_index)
|
|
{
|
|
struct lpfc_fcf_pri *new_fcf_pri;
|
|
|
|
new_fcf_pri = &phba->fcf.fcf_pri[fcf_index];
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
|
|
"3058 deleting idx x%x pri x%x flg x%x\n",
|
|
fcf_index, new_fcf_pri->fcf_rec.priority,
|
|
new_fcf_pri->fcf_rec.flag);
|
|
spin_lock_irq(&phba->hbalock);
|
|
if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) {
|
|
if (phba->fcf.current_rec.priority ==
|
|
new_fcf_pri->fcf_rec.priority)
|
|
phba->fcf.eligible_fcf_cnt--;
|
|
list_del_init(&new_fcf_pri->list);
|
|
new_fcf_pri->fcf_rec.flag &= ~LPFC_FCF_ON_PRI_LIST;
|
|
}
|
|
spin_unlock_irq(&phba->hbalock);
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_set_fcf_flogi_fail
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @fcf_index the index of the fcf record to update
|
|
* This routine acquires the hbalock and then set the LPFC_FCF_FLOGI_FAILED
|
|
* flag so the the round robin slection for the particular priority level
|
|
* will try a different fcf record that does not have this bit set.
|
|
* If the fcf record is re-read for any reason this flag is cleared brfore
|
|
* adding it to the priority list.
|
|
**/
|
|
void
|
|
lpfc_sli4_set_fcf_flogi_fail(struct lpfc_hba *phba, uint16_t fcf_index)
|
|
{
|
|
struct lpfc_fcf_pri *new_fcf_pri;
|
|
new_fcf_pri = &phba->fcf.fcf_pri[fcf_index];
|
|
spin_lock_irq(&phba->hbalock);
|
|
new_fcf_pri->fcf_rec.flag |= LPFC_FCF_FLOGI_FAILED;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_fcf_pri_list_add
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @fcf_index the index of the fcf record to add
|
|
* This routine checks the priority of the fcf_index to be added.
|
|
* If it is a lower priority than the current head of the fcf_pri list
|
|
* then it is added to the list in the right order.
|
|
* If it is the same priority as the current head of the list then it
|
|
* is added to the head of the list and its bit in the rr_bmask is set.
|
|
* If the fcf_index to be added is of a higher priority than the current
|
|
* head of the list then the rr_bmask is cleared, its bit is set in the
|
|
* rr_bmask and it is added to the head of the list.
|
|
* returns:
|
|
* 0=success 1=failure
|
|
**/
|
|
static int lpfc_sli4_fcf_pri_list_add(struct lpfc_hba *phba,
|
|
uint16_t fcf_index,
|
|
struct fcf_record *new_fcf_record)
|
|
{
|
|
uint16_t current_fcf_pri;
|
|
uint16_t last_index;
|
|
struct lpfc_fcf_pri *fcf_pri;
|
|
struct lpfc_fcf_pri *next_fcf_pri;
|
|
struct lpfc_fcf_pri *new_fcf_pri;
|
|
int ret;
|
|
|
|
new_fcf_pri = &phba->fcf.fcf_pri[fcf_index];
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
|
|
"3059 adding idx x%x pri x%x flg x%x\n",
|
|
fcf_index, new_fcf_record->fip_priority,
|
|
new_fcf_pri->fcf_rec.flag);
|
|
spin_lock_irq(&phba->hbalock);
|
|
if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST)
|
|
list_del_init(&new_fcf_pri->list);
|
|
new_fcf_pri->fcf_rec.fcf_index = fcf_index;
|
|
new_fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority;
|
|
if (list_empty(&phba->fcf.fcf_pri_list)) {
|
|
list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list);
|
|
ret = lpfc_sli4_fcf_rr_index_set(phba,
|
|
new_fcf_pri->fcf_rec.fcf_index);
|
|
goto out;
|
|
}
|
|
|
|
last_index = find_first_bit(phba->fcf.fcf_rr_bmask,
|
|
LPFC_SLI4_FCF_TBL_INDX_MAX);
|
|
if (last_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
|
|
ret = 0; /* Empty rr list */
|
|
goto out;
|
|
}
|
|
current_fcf_pri = phba->fcf.fcf_pri[last_index].fcf_rec.priority;
|
|
if (new_fcf_pri->fcf_rec.priority <= current_fcf_pri) {
|
|
list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list);
|
|
if (new_fcf_pri->fcf_rec.priority < current_fcf_pri) {
|
|
memset(phba->fcf.fcf_rr_bmask, 0,
|
|
sizeof(*phba->fcf.fcf_rr_bmask));
|
|
/* fcfs_at_this_priority_level = 1; */
|
|
phba->fcf.eligible_fcf_cnt = 1;
|
|
} else
|
|
/* fcfs_at_this_priority_level++; */
|
|
phba->fcf.eligible_fcf_cnt++;
|
|
ret = lpfc_sli4_fcf_rr_index_set(phba,
|
|
new_fcf_pri->fcf_rec.fcf_index);
|
|
goto out;
|
|
}
|
|
|
|
list_for_each_entry_safe(fcf_pri, next_fcf_pri,
|
|
&phba->fcf.fcf_pri_list, list) {
|
|
if (new_fcf_pri->fcf_rec.priority <=
|
|
fcf_pri->fcf_rec.priority) {
|
|
if (fcf_pri->list.prev == &phba->fcf.fcf_pri_list)
|
|
list_add(&new_fcf_pri->list,
|
|
&phba->fcf.fcf_pri_list);
|
|
else
|
|
list_add(&new_fcf_pri->list,
|
|
&((struct lpfc_fcf_pri *)
|
|
fcf_pri->list.prev)->list);
|
|
ret = 0;
|
|
goto out;
|
|
} else if (fcf_pri->list.next == &phba->fcf.fcf_pri_list
|
|
|| new_fcf_pri->fcf_rec.priority <
|
|
next_fcf_pri->fcf_rec.priority) {
|
|
list_add(&new_fcf_pri->list, &fcf_pri->list);
|
|
ret = 0;
|
|
goto out;
|
|
}
|
|
if (new_fcf_pri->fcf_rec.priority > fcf_pri->fcf_rec.priority)
|
|
continue;
|
|
|
|
}
|
|
ret = 1;
|
|
out:
|
|
/* we use = instead of |= to clear the FLOGI_FAILED flag. */
|
|
new_fcf_pri->fcf_rec.flag = LPFC_FCF_ON_PRI_LIST;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* lpfc_mbx_cmpl_fcf_scan_read_fcf_rec - fcf scan read_fcf mbox cmpl handler.
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @mboxq: pointer to mailbox object.
|
|
*
|
|
* This function iterates through all the fcf records available in
|
|
* HBA and chooses the optimal FCF record for discovery. After finding
|
|
* the FCF for discovery it registers the FCF record and kicks start
|
|
* discovery.
|
|
* If FCF_IN_USE flag is set in currently used FCF, the routine tries to
|
|
* use an FCF record which matches fabric name and mac address of the
|
|
* currently used FCF record.
|
|
* If the driver supports only one FCF, it will try to use the FCF record
|
|
* used by BOOT_BIOS.
|
|
*/
|
|
void
|
|
lpfc_mbx_cmpl_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
|
|
{
|
|
struct fcf_record *new_fcf_record;
|
|
uint32_t boot_flag, addr_mode;
|
|
uint16_t fcf_index, next_fcf_index;
|
|
struct lpfc_fcf_rec *fcf_rec = NULL;
|
|
uint16_t vlan_id;
|
|
bool select_new_fcf;
|
|
int rc;
|
|
|
|
/* If there is pending FCoE event restart FCF table scan */
|
|
if (lpfc_check_pending_fcoe_event(phba, LPFC_SKIP_UNREG_FCF)) {
|
|
lpfc_sli4_mbox_cmd_free(phba, mboxq);
|
|
return;
|
|
}
|
|
|
|
/* Parse the FCF record from the non-embedded mailbox command */
|
|
new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq,
|
|
&next_fcf_index);
|
|
if (!new_fcf_record) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
|
|
"2765 Mailbox command READ_FCF_RECORD "
|
|
"failed to retrieve a FCF record.\n");
|
|
/* Let next new FCF event trigger fast failover */
|
|
spin_lock_irq(&phba->hbalock);
|
|
phba->hba_flag &= ~FCF_TS_INPROG;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
lpfc_sli4_mbox_cmd_free(phba, mboxq);
|
|
return;
|
|
}
|
|
|
|
/* Check the FCF record against the connection list */
|
|
rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag,
|
|
&addr_mode, &vlan_id);
|
|
|
|
/* Log the FCF record information if turned on */
|
|
lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id,
|
|
next_fcf_index);
|
|
|
|
/*
|
|
* If the fcf record does not match with connect list entries
|
|
* read the next entry; otherwise, this is an eligible FCF
|
|
* record for roundrobin FCF failover.
|
|
*/
|
|
if (!rc) {
|
|
lpfc_sli4_fcf_pri_list_del(phba,
|
|
bf_get(lpfc_fcf_record_fcf_index,
|
|
new_fcf_record));
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
|
|
"2781 FCF (x%x) failed connection "
|
|
"list check: (x%x/x%x/%x)\n",
|
|
bf_get(lpfc_fcf_record_fcf_index,
|
|
new_fcf_record),
|
|
bf_get(lpfc_fcf_record_fcf_avail,
|
|
new_fcf_record),
|
|
bf_get(lpfc_fcf_record_fcf_valid,
|
|
new_fcf_record),
|
|
bf_get(lpfc_fcf_record_fcf_sol,
|
|
new_fcf_record));
|
|
if ((phba->fcf.fcf_flag & FCF_IN_USE) &&
|
|
lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec,
|
|
new_fcf_record, LPFC_FCOE_IGNORE_VID)) {
|
|
if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) !=
|
|
phba->fcf.current_rec.fcf_indx) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
|
|
"2862 FCF (x%x) matches property "
|
|
"of in-use FCF (x%x)\n",
|
|
bf_get(lpfc_fcf_record_fcf_index,
|
|
new_fcf_record),
|
|
phba->fcf.current_rec.fcf_indx);
|
|
goto read_next_fcf;
|
|
}
|
|
/*
|
|
* In case the current in-use FCF record becomes
|
|
* invalid/unavailable during FCF discovery that
|
|
* was not triggered by fast FCF failover process,
|
|
* treat it as fast FCF failover.
|
|
*/
|
|
if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND) &&
|
|
!(phba->fcf.fcf_flag & FCF_REDISC_FOV)) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
|
|
"2835 Invalid in-use FCF "
|
|
"(x%x), enter FCF failover "
|
|
"table scan.\n",
|
|
phba->fcf.current_rec.fcf_indx);
|
|
spin_lock_irq(&phba->hbalock);
|
|
phba->fcf.fcf_flag |= FCF_REDISC_FOV;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
lpfc_sli4_mbox_cmd_free(phba, mboxq);
|
|
lpfc_sli4_fcf_scan_read_fcf_rec(phba,
|
|
LPFC_FCOE_FCF_GET_FIRST);
|
|
return;
|
|
}
|
|
}
|
|
goto read_next_fcf;
|
|
} else {
|
|
fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
|
|
rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index,
|
|
new_fcf_record);
|
|
if (rc)
|
|
goto read_next_fcf;
|
|
}
|
|
|
|
/*
|
|
* If this is not the first FCF discovery of the HBA, use last
|
|
* FCF record for the discovery. The condition that a rescan
|
|
* matches the in-use FCF record: fabric name, switch name, mac
|
|
* address, and vlan_id.
|
|
*/
|
|
spin_lock_irq(&phba->hbalock);
|
|
if (phba->fcf.fcf_flag & FCF_IN_USE) {
|
|
if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV &&
|
|
lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec,
|
|
new_fcf_record, vlan_id)) {
|
|
if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) ==
|
|
phba->fcf.current_rec.fcf_indx) {
|
|
phba->fcf.fcf_flag |= FCF_AVAILABLE;
|
|
if (phba->fcf.fcf_flag & FCF_REDISC_PEND)
|
|
/* Stop FCF redisc wait timer */
|
|
__lpfc_sli4_stop_fcf_redisc_wait_timer(
|
|
phba);
|
|
else if (phba->fcf.fcf_flag & FCF_REDISC_FOV)
|
|
/* Fast failover, mark completed */
|
|
phba->fcf.fcf_flag &= ~FCF_REDISC_FOV;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
|
|
"2836 New FCF matches in-use "
|
|
"FCF (x%x), port_state:x%x, "
|
|
"fc_flag:x%x\n",
|
|
phba->fcf.current_rec.fcf_indx,
|
|
phba->pport->port_state,
|
|
phba->pport->fc_flag);
|
|
goto out;
|
|
} else
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
|
|
"2863 New FCF (x%x) matches "
|
|
"property of in-use FCF (x%x)\n",
|
|
bf_get(lpfc_fcf_record_fcf_index,
|
|
new_fcf_record),
|
|
phba->fcf.current_rec.fcf_indx);
|
|
}
|
|
/*
|
|
* Read next FCF record from HBA searching for the matching
|
|
* with in-use record only if not during the fast failover
|
|
* period. In case of fast failover period, it shall try to
|
|
* determine whether the FCF record just read should be the
|
|
* next candidate.
|
|
*/
|
|
if (!(phba->fcf.fcf_flag & FCF_REDISC_FOV)) {
|
|
spin_unlock_irq(&phba->hbalock);
|
|
goto read_next_fcf;
|
|
}
|
|
}
|
|
/*
|
|
* Update on failover FCF record only if it's in FCF fast-failover
|
|
* period; otherwise, update on current FCF record.
|
|
*/
|
|
if (phba->fcf.fcf_flag & FCF_REDISC_FOV)
|
|
fcf_rec = &phba->fcf.failover_rec;
|
|
else
|
|
fcf_rec = &phba->fcf.current_rec;
|
|
|
|
if (phba->fcf.fcf_flag & FCF_AVAILABLE) {
|
|
/*
|
|
* If the driver FCF record does not have boot flag
|
|
* set and new hba fcf record has boot flag set, use
|
|
* the new hba fcf record.
|
|
*/
|
|
if (boot_flag && !(fcf_rec->flag & BOOT_ENABLE)) {
|
|
/* Choose this FCF record */
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
|
|
"2837 Update current FCF record "
|
|
"(x%x) with new FCF record (x%x)\n",
|
|
fcf_rec->fcf_indx,
|
|
bf_get(lpfc_fcf_record_fcf_index,
|
|
new_fcf_record));
|
|
__lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record,
|
|
addr_mode, vlan_id, BOOT_ENABLE);
|
|
spin_unlock_irq(&phba->hbalock);
|
|
goto read_next_fcf;
|
|
}
|
|
/*
|
|
* If the driver FCF record has boot flag set and the
|
|
* new hba FCF record does not have boot flag, read
|
|
* the next FCF record.
|
|
*/
|
|
if (!boot_flag && (fcf_rec->flag & BOOT_ENABLE)) {
|
|
spin_unlock_irq(&phba->hbalock);
|
|
goto read_next_fcf;
|
|
}
|
|
/*
|
|
* If the new hba FCF record has lower priority value
|
|
* than the driver FCF record, use the new record.
|
|
*/
|
|
if (new_fcf_record->fip_priority < fcf_rec->priority) {
|
|
/* Choose the new FCF record with lower priority */
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
|
|
"2838 Update current FCF record "
|
|
"(x%x) with new FCF record (x%x)\n",
|
|
fcf_rec->fcf_indx,
|
|
bf_get(lpfc_fcf_record_fcf_index,
|
|
new_fcf_record));
|
|
__lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record,
|
|
addr_mode, vlan_id, 0);
|
|
/* Reset running random FCF selection count */
|
|
phba->fcf.eligible_fcf_cnt = 1;
|
|
} else if (new_fcf_record->fip_priority == fcf_rec->priority) {
|
|
/* Update running random FCF selection count */
|
|
phba->fcf.eligible_fcf_cnt++;
|
|
select_new_fcf = lpfc_sli4_new_fcf_random_select(phba,
|
|
phba->fcf.eligible_fcf_cnt);
|
|
if (select_new_fcf) {
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
|
|
"2839 Update current FCF record "
|
|
"(x%x) with new FCF record (x%x)\n",
|
|
fcf_rec->fcf_indx,
|
|
bf_get(lpfc_fcf_record_fcf_index,
|
|
new_fcf_record));
|
|
/* Choose the new FCF by random selection */
|
|
__lpfc_update_fcf_record(phba, fcf_rec,
|
|
new_fcf_record,
|
|
addr_mode, vlan_id, 0);
|
|
}
|
|
}
|
|
spin_unlock_irq(&phba->hbalock);
|
|
goto read_next_fcf;
|
|
}
|
|
/*
|
|
* This is the first suitable FCF record, choose this record for
|
|
* initial best-fit FCF.
|
|
*/
|
|
if (fcf_rec) {
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
|
|
"2840 Update initial FCF candidate "
|
|
"with FCF (x%x)\n",
|
|
bf_get(lpfc_fcf_record_fcf_index,
|
|
new_fcf_record));
|
|
__lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record,
|
|
addr_mode, vlan_id, (boot_flag ?
|
|
BOOT_ENABLE : 0));
|
|
phba->fcf.fcf_flag |= FCF_AVAILABLE;
|
|
/* Setup initial running random FCF selection count */
|
|
phba->fcf.eligible_fcf_cnt = 1;
|
|
}
|
|
spin_unlock_irq(&phba->hbalock);
|
|
goto read_next_fcf;
|
|
|
|
read_next_fcf:
|
|
lpfc_sli4_mbox_cmd_free(phba, mboxq);
|
|
if (next_fcf_index == LPFC_FCOE_FCF_NEXT_NONE || next_fcf_index == 0) {
|
|
if (phba->fcf.fcf_flag & FCF_REDISC_FOV) {
|
|
/*
|
|
* Case of FCF fast failover scan
|
|
*/
|
|
|
|
/*
|
|
* It has not found any suitable FCF record, cancel
|
|
* FCF scan inprogress, and do nothing
|
|
*/
|
|
if (!(phba->fcf.failover_rec.flag & RECORD_VALID)) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
|
|
"2782 No suitable FCF found: "
|
|
"(x%x/x%x)\n",
|
|
phba->fcoe_eventtag_at_fcf_scan,
|
|
bf_get(lpfc_fcf_record_fcf_index,
|
|
new_fcf_record));
|
|
spin_lock_irq(&phba->hbalock);
|
|
if (phba->hba_flag & HBA_DEVLOSS_TMO) {
|
|
phba->hba_flag &= ~FCF_TS_INPROG;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
/* Unregister in-use FCF and rescan */
|
|
lpfc_printf_log(phba, KERN_INFO,
|
|
LOG_FIP,
|
|
"2864 On devloss tmo "
|
|
"unreg in-use FCF and "
|
|
"rescan FCF table\n");
|
|
lpfc_unregister_fcf_rescan(phba);
|
|
return;
|
|
}
|
|
/*
|
|
* Let next new FCF event trigger fast failover
|
|
*/
|
|
phba->hba_flag &= ~FCF_TS_INPROG;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
return;
|
|
}
|
|
/*
|
|
* It has found a suitable FCF record that is not
|
|
* the same as in-use FCF record, unregister the
|
|
* in-use FCF record, replace the in-use FCF record
|
|
* with the new FCF record, mark FCF fast failover
|
|
* completed, and then start register the new FCF
|
|
* record.
|
|
*/
|
|
|
|
/* Unregister the current in-use FCF record */
|
|
lpfc_unregister_fcf(phba);
|
|
|
|
/* Replace in-use record with the new record */
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
|
|
"2842 Replace in-use FCF (x%x) "
|
|
"with failover FCF (x%x)\n",
|
|
phba->fcf.current_rec.fcf_indx,
|
|
phba->fcf.failover_rec.fcf_indx);
|
|
memcpy(&phba->fcf.current_rec,
|
|
&phba->fcf.failover_rec,
|
|
sizeof(struct lpfc_fcf_rec));
|
|
/*
|
|
* Mark the fast FCF failover rediscovery completed
|
|
* and the start of the first round of the roundrobin
|
|
* FCF failover.
|
|
*/
|
|
spin_lock_irq(&phba->hbalock);
|
|
phba->fcf.fcf_flag &= ~FCF_REDISC_FOV;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
/* Register to the new FCF record */
|
|
lpfc_register_fcf(phba);
|
|
} else {
|
|
/*
|
|
* In case of transaction period to fast FCF failover,
|
|
* do nothing when search to the end of the FCF table.
|
|
*/
|
|
if ((phba->fcf.fcf_flag & FCF_REDISC_EVT) ||
|
|
(phba->fcf.fcf_flag & FCF_REDISC_PEND))
|
|
return;
|
|
|
|
if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV &&
|
|
phba->fcf.fcf_flag & FCF_IN_USE) {
|
|
/*
|
|
* In case the current in-use FCF record no
|
|
* longer existed during FCF discovery that
|
|
* was not triggered by fast FCF failover
|
|
* process, treat it as fast FCF failover.
|
|
*/
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
|
|
"2841 In-use FCF record (x%x) "
|
|
"not reported, entering fast "
|
|
"FCF failover mode scanning.\n",
|
|
phba->fcf.current_rec.fcf_indx);
|
|
spin_lock_irq(&phba->hbalock);
|
|
phba->fcf.fcf_flag |= FCF_REDISC_FOV;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
lpfc_sli4_fcf_scan_read_fcf_rec(phba,
|
|
LPFC_FCOE_FCF_GET_FIRST);
|
|
return;
|
|
}
|
|
/* Register to the new FCF record */
|
|
lpfc_register_fcf(phba);
|
|
}
|
|
} else
|
|
lpfc_sli4_fcf_scan_read_fcf_rec(phba, next_fcf_index);
|
|
return;
|
|
|
|
out:
|
|
lpfc_sli4_mbox_cmd_free(phba, mboxq);
|
|
lpfc_register_fcf(phba);
|
|
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* lpfc_mbx_cmpl_fcf_rr_read_fcf_rec - fcf roundrobin read_fcf mbox cmpl hdler
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @mboxq: pointer to mailbox object.
|
|
*
|
|
* This is the callback function for FLOGI failure roundrobin FCF failover
|
|
* read FCF record mailbox command from the eligible FCF record bmask for
|
|
* performing the failover. If the FCF read back is not valid/available, it
|
|
* fails through to retrying FLOGI to the currently registered FCF again.
|
|
* Otherwise, if the FCF read back is valid and available, it will set the
|
|
* newly read FCF record to the failover FCF record, unregister currently
|
|
* registered FCF record, copy the failover FCF record to the current
|
|
* FCF record, and then register the current FCF record before proceeding
|
|
* to trying FLOGI on the new failover FCF.
|
|
*/
|
|
void
|
|
lpfc_mbx_cmpl_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
|
|
{
|
|
struct fcf_record *new_fcf_record;
|
|
uint32_t boot_flag, addr_mode;
|
|
uint16_t next_fcf_index, fcf_index;
|
|
uint16_t current_fcf_index;
|
|
uint16_t vlan_id;
|
|
int rc;
|
|
|
|
/* If link state is not up, stop the roundrobin failover process */
|
|
if (phba->link_state < LPFC_LINK_UP) {
|
|
spin_lock_irq(&phba->hbalock);
|
|
phba->fcf.fcf_flag &= ~FCF_DISCOVERY;
|
|
phba->hba_flag &= ~FCF_RR_INPROG;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
goto out;
|
|
}
|
|
|
|
/* Parse the FCF record from the non-embedded mailbox command */
|
|
new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq,
|
|
&next_fcf_index);
|
|
if (!new_fcf_record) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
|
|
"2766 Mailbox command READ_FCF_RECORD "
|
|
"failed to retrieve a FCF record. "
|
|
"hba_flg x%x fcf_flg x%x\n", phba->hba_flag,
|
|
phba->fcf.fcf_flag);
|
|
lpfc_unregister_fcf_rescan(phba);
|
|
goto out;
|
|
}
|
|
|
|
/* Get the needed parameters from FCF record */
|
|
rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag,
|
|
&addr_mode, &vlan_id);
|
|
|
|
/* Log the FCF record information if turned on */
|
|
lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id,
|
|
next_fcf_index);
|
|
|
|
fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
|
|
if (!rc) {
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
|
|
"2848 Remove ineligible FCF (x%x) from "
|
|
"from roundrobin bmask\n", fcf_index);
|
|
/* Clear roundrobin bmask bit for ineligible FCF */
|
|
lpfc_sli4_fcf_rr_index_clear(phba, fcf_index);
|
|
/* Perform next round of roundrobin FCF failover */
|
|
fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba);
|
|
rc = lpfc_sli4_fcf_rr_next_proc(phba->pport, fcf_index);
|
|
if (rc)
|
|
goto out;
|
|
goto error_out;
|
|
}
|
|
|
|
if (fcf_index == phba->fcf.current_rec.fcf_indx) {
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
|
|
"2760 Perform FLOGI roundrobin FCF failover: "
|
|
"FCF (x%x) back to FCF (x%x)\n",
|
|
phba->fcf.current_rec.fcf_indx, fcf_index);
|
|
/* Wait 500 ms before retrying FLOGI to current FCF */
|
|
msleep(500);
|
|
lpfc_issue_init_vfi(phba->pport);
|
|
goto out;
|
|
}
|
|
|
|
/* Upload new FCF record to the failover FCF record */
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
|
|
"2834 Update current FCF (x%x) with new FCF (x%x)\n",
|
|
phba->fcf.failover_rec.fcf_indx, fcf_index);
|
|
spin_lock_irq(&phba->hbalock);
|
|
__lpfc_update_fcf_record(phba, &phba->fcf.failover_rec,
|
|
new_fcf_record, addr_mode, vlan_id,
|
|
(boot_flag ? BOOT_ENABLE : 0));
|
|
spin_unlock_irq(&phba->hbalock);
|
|
|
|
current_fcf_index = phba->fcf.current_rec.fcf_indx;
|
|
|
|
/* Unregister the current in-use FCF record */
|
|
lpfc_unregister_fcf(phba);
|
|
|
|
/* Replace in-use record with the new record */
|
|
memcpy(&phba->fcf.current_rec, &phba->fcf.failover_rec,
|
|
sizeof(struct lpfc_fcf_rec));
|
|
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
|
|
"2783 Perform FLOGI roundrobin FCF failover: FCF "
|
|
"(x%x) to FCF (x%x)\n", current_fcf_index, fcf_index);
|
|
|
|
error_out:
|
|
lpfc_register_fcf(phba);
|
|
out:
|
|
lpfc_sli4_mbox_cmd_free(phba, mboxq);
|
|
}
|
|
|
|
/**
|
|
* lpfc_mbx_cmpl_read_fcf_rec - read fcf completion handler.
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @mboxq: pointer to mailbox object.
|
|
*
|
|
* This is the callback function of read FCF record mailbox command for
|
|
* updating the eligible FCF bmask for FLOGI failure roundrobin FCF
|
|
* failover when a new FCF event happened. If the FCF read back is
|
|
* valid/available and it passes the connection list check, it updates
|
|
* the bmask for the eligible FCF record for roundrobin failover.
|
|
*/
|
|
void
|
|
lpfc_mbx_cmpl_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
|
|
{
|
|
struct fcf_record *new_fcf_record;
|
|
uint32_t boot_flag, addr_mode;
|
|
uint16_t fcf_index, next_fcf_index;
|
|
uint16_t vlan_id;
|
|
int rc;
|
|
|
|
/* If link state is not up, no need to proceed */
|
|
if (phba->link_state < LPFC_LINK_UP)
|
|
goto out;
|
|
|
|
/* If FCF discovery period is over, no need to proceed */
|
|
if (!(phba->fcf.fcf_flag & FCF_DISCOVERY))
|
|
goto out;
|
|
|
|
/* Parse the FCF record from the non-embedded mailbox command */
|
|
new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq,
|
|
&next_fcf_index);
|
|
if (!new_fcf_record) {
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
|
|
"2767 Mailbox command READ_FCF_RECORD "
|
|
"failed to retrieve a FCF record.\n");
|
|
goto out;
|
|
}
|
|
|
|
/* Check the connection list for eligibility */
|
|
rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag,
|
|
&addr_mode, &vlan_id);
|
|
|
|
/* Log the FCF record information if turned on */
|
|
lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id,
|
|
next_fcf_index);
|
|
|
|
if (!rc)
|
|
goto out;
|
|
|
|
/* Update the eligible FCF record index bmask */
|
|
fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
|
|
|
|
rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, new_fcf_record);
|
|
|
|
out:
|
|
lpfc_sli4_mbox_cmd_free(phba, mboxq);
|
|
}
|
|
|
|
/**
|
|
* lpfc_init_vfi_cmpl - Completion handler for init_vfi mbox command.
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @mboxq: pointer to mailbox data structure.
|
|
*
|
|
* This function handles completion of init vfi mailbox command.
|
|
*/
|
|
static void
|
|
lpfc_init_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
|
|
{
|
|
struct lpfc_vport *vport = mboxq->vport;
|
|
|
|
/*
|
|
* VFI not supported on interface type 0, just do the flogi
|
|
* Also continue if the VFI is in use - just use the same one.
|
|
*/
|
|
if (mboxq->u.mb.mbxStatus &&
|
|
(bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
|
|
LPFC_SLI_INTF_IF_TYPE_0) &&
|
|
mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) {
|
|
lpfc_printf_vlog(vport, KERN_ERR,
|
|
LOG_MBOX,
|
|
"2891 Init VFI mailbox failed 0x%x\n",
|
|
mboxq->u.mb.mbxStatus);
|
|
mempool_free(mboxq, phba->mbox_mem_pool);
|
|
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
|
|
return;
|
|
}
|
|
|
|
lpfc_initial_flogi(vport);
|
|
mempool_free(mboxq, phba->mbox_mem_pool);
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* lpfc_issue_init_vfi - Issue init_vfi mailbox command.
|
|
* @vport: pointer to lpfc_vport data structure.
|
|
*
|
|
* This function issue a init_vfi mailbox command to initialize the VFI and
|
|
* VPI for the physical port.
|
|
*/
|
|
void
|
|
lpfc_issue_init_vfi(struct lpfc_vport *vport)
|
|
{
|
|
LPFC_MBOXQ_t *mboxq;
|
|
int rc;
|
|
struct lpfc_hba *phba = vport->phba;
|
|
|
|
mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (!mboxq) {
|
|
lpfc_printf_vlog(vport, KERN_ERR,
|
|
LOG_MBOX, "2892 Failed to allocate "
|
|
"init_vfi mailbox\n");
|
|
return;
|
|
}
|
|
lpfc_init_vfi(mboxq, vport);
|
|
mboxq->mbox_cmpl = lpfc_init_vfi_cmpl;
|
|
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
|
|
if (rc == MBX_NOT_FINISHED) {
|
|
lpfc_printf_vlog(vport, KERN_ERR,
|
|
LOG_MBOX, "2893 Failed to issue init_vfi mailbox\n");
|
|
mempool_free(mboxq, vport->phba->mbox_mem_pool);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* lpfc_init_vpi_cmpl - Completion handler for init_vpi mbox command.
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @mboxq: pointer to mailbox data structure.
|
|
*
|
|
* This function handles completion of init vpi mailbox command.
|
|
*/
|
|
void
|
|
lpfc_init_vpi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
|
|
{
|
|
struct lpfc_vport *vport = mboxq->vport;
|
|
struct lpfc_nodelist *ndlp;
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
|
|
if (mboxq->u.mb.mbxStatus) {
|
|
lpfc_printf_vlog(vport, KERN_ERR,
|
|
LOG_MBOX,
|
|
"2609 Init VPI mailbox failed 0x%x\n",
|
|
mboxq->u.mb.mbxStatus);
|
|
mempool_free(mboxq, phba->mbox_mem_pool);
|
|
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
|
|
return;
|
|
}
|
|
spin_lock_irq(shost->host_lock);
|
|
vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI;
|
|
spin_unlock_irq(shost->host_lock);
|
|
|
|
/* If this port is physical port or FDISC is done, do reg_vpi */
|
|
if ((phba->pport == vport) || (vport->port_state == LPFC_FDISC)) {
|
|
ndlp = lpfc_findnode_did(vport, Fabric_DID);
|
|
if (!ndlp)
|
|
lpfc_printf_vlog(vport, KERN_ERR,
|
|
LOG_DISCOVERY,
|
|
"2731 Cannot find fabric "
|
|
"controller node\n");
|
|
else
|
|
lpfc_register_new_vport(phba, vport, ndlp);
|
|
mempool_free(mboxq, phba->mbox_mem_pool);
|
|
return;
|
|
}
|
|
|
|
if (phba->link_flag & LS_NPIV_FAB_SUPPORTED)
|
|
lpfc_initial_fdisc(vport);
|
|
else {
|
|
lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP);
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
|
|
"2606 No NPIV Fabric support\n");
|
|
}
|
|
mempool_free(mboxq, phba->mbox_mem_pool);
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* lpfc_issue_init_vpi - Issue init_vpi mailbox command.
|
|
* @vport: pointer to lpfc_vport data structure.
|
|
*
|
|
* This function issue a init_vpi mailbox command to initialize
|
|
* VPI for the vport.
|
|
*/
|
|
void
|
|
lpfc_issue_init_vpi(struct lpfc_vport *vport)
|
|
{
|
|
LPFC_MBOXQ_t *mboxq;
|
|
int rc, vpi;
|
|
|
|
if ((vport->port_type != LPFC_PHYSICAL_PORT) && (!vport->vpi)) {
|
|
vpi = lpfc_alloc_vpi(vport->phba);
|
|
if (!vpi) {
|
|
lpfc_printf_vlog(vport, KERN_ERR,
|
|
LOG_MBOX,
|
|
"3303 Failed to obtain vport vpi\n");
|
|
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
|
|
return;
|
|
}
|
|
vport->vpi = vpi;
|
|
}
|
|
|
|
mboxq = mempool_alloc(vport->phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (!mboxq) {
|
|
lpfc_printf_vlog(vport, KERN_ERR,
|
|
LOG_MBOX, "2607 Failed to allocate "
|
|
"init_vpi mailbox\n");
|
|
return;
|
|
}
|
|
lpfc_init_vpi(vport->phba, mboxq, vport->vpi);
|
|
mboxq->vport = vport;
|
|
mboxq->mbox_cmpl = lpfc_init_vpi_cmpl;
|
|
rc = lpfc_sli_issue_mbox(vport->phba, mboxq, MBX_NOWAIT);
|
|
if (rc == MBX_NOT_FINISHED) {
|
|
lpfc_printf_vlog(vport, KERN_ERR,
|
|
LOG_MBOX, "2608 Failed to issue init_vpi mailbox\n");
|
|
mempool_free(mboxq, vport->phba->mbox_mem_pool);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* lpfc_start_fdiscs - send fdiscs for each vports on this port.
|
|
* @phba: pointer to lpfc hba data structure.
|
|
*
|
|
* This function loops through the list of vports on the @phba and issues an
|
|
* FDISC if possible.
|
|
*/
|
|
void
|
|
lpfc_start_fdiscs(struct lpfc_hba *phba)
|
|
{
|
|
struct lpfc_vport **vports;
|
|
int i;
|
|
|
|
vports = lpfc_create_vport_work_array(phba);
|
|
if (vports != NULL) {
|
|
for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
|
|
if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
|
|
continue;
|
|
/* There are no vpi for this vport */
|
|
if (vports[i]->vpi > phba->max_vpi) {
|
|
lpfc_vport_set_state(vports[i],
|
|
FC_VPORT_FAILED);
|
|
continue;
|
|
}
|
|
if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
|
|
lpfc_vport_set_state(vports[i],
|
|
FC_VPORT_LINKDOWN);
|
|
continue;
|
|
}
|
|
if (vports[i]->fc_flag & FC_VPORT_NEEDS_INIT_VPI) {
|
|
lpfc_issue_init_vpi(vports[i]);
|
|
continue;
|
|
}
|
|
if (phba->link_flag & LS_NPIV_FAB_SUPPORTED)
|
|
lpfc_initial_fdisc(vports[i]);
|
|
else {
|
|
lpfc_vport_set_state(vports[i],
|
|
FC_VPORT_NO_FABRIC_SUPP);
|
|
lpfc_printf_vlog(vports[i], KERN_ERR,
|
|
LOG_ELS,
|
|
"0259 No NPIV "
|
|
"Fabric support\n");
|
|
}
|
|
}
|
|
}
|
|
lpfc_destroy_vport_work_array(phba, vports);
|
|
}
|
|
|
|
void
|
|
lpfc_mbx_cmpl_reg_vfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
|
|
{
|
|
struct lpfc_dmabuf *dmabuf = mboxq->context1;
|
|
struct lpfc_vport *vport = mboxq->vport;
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
|
|
/*
|
|
* VFI not supported for interface type 0, so ignore any mailbox
|
|
* error (except VFI in use) and continue with the discovery.
|
|
*/
|
|
if (mboxq->u.mb.mbxStatus &&
|
|
(bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
|
|
LPFC_SLI_INTF_IF_TYPE_0) &&
|
|
mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) {
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
|
|
"2018 REG_VFI mbxStatus error x%x "
|
|
"HBA state x%x\n",
|
|
mboxq->u.mb.mbxStatus, vport->port_state);
|
|
if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
|
|
/* FLOGI failed, use loop map to make discovery list */
|
|
lpfc_disc_list_loopmap(vport);
|
|
/* Start discovery */
|
|
lpfc_disc_start(vport);
|
|
goto out_free_mem;
|
|
}
|
|
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
|
|
goto out_free_mem;
|
|
}
|
|
|
|
/* If the VFI is already registered, there is nothing else to do
|
|
* Unless this was a VFI update and we are in PT2PT mode, then
|
|
* we should drop through to set the port state to ready.
|
|
*/
|
|
if (vport->fc_flag & FC_VFI_REGISTERED)
|
|
if (!(phba->sli_rev == LPFC_SLI_REV4 &&
|
|
vport->fc_flag & FC_PT2PT))
|
|
goto out_free_mem;
|
|
|
|
/* The VPI is implicitly registered when the VFI is registered */
|
|
spin_lock_irq(shost->host_lock);
|
|
vport->vpi_state |= LPFC_VPI_REGISTERED;
|
|
vport->fc_flag |= FC_VFI_REGISTERED;
|
|
vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
|
|
vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI;
|
|
spin_unlock_irq(shost->host_lock);
|
|
|
|
/* In case SLI4 FC loopback test, we are ready */
|
|
if ((phba->sli_rev == LPFC_SLI_REV4) &&
|
|
(phba->link_flag & LS_LOOPBACK_MODE)) {
|
|
phba->link_state = LPFC_HBA_READY;
|
|
goto out_free_mem;
|
|
}
|
|
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
|
|
"3313 cmpl reg vfi port_state:%x fc_flag:%x myDid:%x "
|
|
"alpacnt:%d LinkState:%x topology:%x\n",
|
|
vport->port_state, vport->fc_flag, vport->fc_myDID,
|
|
vport->phba->alpa_map[0],
|
|
phba->link_state, phba->fc_topology);
|
|
|
|
if (vport->port_state == LPFC_FABRIC_CFG_LINK) {
|
|
/*
|
|
* For private loop or for NPort pt2pt,
|
|
* just start discovery and we are done.
|
|
*/
|
|
if ((vport->fc_flag & FC_PT2PT) ||
|
|
((phba->fc_topology == LPFC_TOPOLOGY_LOOP) &&
|
|
!(vport->fc_flag & FC_PUBLIC_LOOP))) {
|
|
|
|
/* Use loop map to make discovery list */
|
|
lpfc_disc_list_loopmap(vport);
|
|
/* Start discovery */
|
|
if (vport->fc_flag & FC_PT2PT)
|
|
vport->port_state = LPFC_VPORT_READY;
|
|
else
|
|
lpfc_disc_start(vport);
|
|
} else {
|
|
lpfc_start_fdiscs(phba);
|
|
lpfc_do_scr_ns_plogi(phba, vport);
|
|
}
|
|
}
|
|
|
|
out_free_mem:
|
|
mempool_free(mboxq, phba->mbox_mem_pool);
|
|
lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys);
|
|
kfree(dmabuf);
|
|
return;
|
|
}
|
|
|
|
static void
|
|
lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
|
|
{
|
|
MAILBOX_t *mb = &pmb->u.mb;
|
|
struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) pmb->context1;
|
|
struct lpfc_vport *vport = pmb->vport;
|
|
|
|
|
|
/* Check for error */
|
|
if (mb->mbxStatus) {
|
|
/* READ_SPARAM mbox error <mbxStatus> state <hba_state> */
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
|
|
"0319 READ_SPARAM mbxStatus error x%x "
|
|
"hba state x%x>\n",
|
|
mb->mbxStatus, vport->port_state);
|
|
lpfc_linkdown(phba);
|
|
goto out;
|
|
}
|
|
|
|
memcpy((uint8_t *) &vport->fc_sparam, (uint8_t *) mp->virt,
|
|
sizeof (struct serv_parm));
|
|
lpfc_update_vport_wwn(vport);
|
|
if (vport->port_type == LPFC_PHYSICAL_PORT) {
|
|
memcpy(&phba->wwnn, &vport->fc_nodename, sizeof(phba->wwnn));
|
|
memcpy(&phba->wwpn, &vport->fc_portname, sizeof(phba->wwnn));
|
|
}
|
|
|
|
lpfc_mbuf_free(phba, mp->virt, mp->phys);
|
|
kfree(mp);
|
|
mempool_free(pmb, phba->mbox_mem_pool);
|
|
return;
|
|
|
|
out:
|
|
pmb->context1 = NULL;
|
|
lpfc_mbuf_free(phba, mp->virt, mp->phys);
|
|
kfree(mp);
|
|
lpfc_issue_clear_la(phba, vport);
|
|
mempool_free(pmb, phba->mbox_mem_pool);
|
|
return;
|
|
}
|
|
|
|
static void
|
|
lpfc_mbx_process_link_up(struct lpfc_hba *phba, struct lpfc_mbx_read_top *la)
|
|
{
|
|
struct lpfc_vport *vport = phba->pport;
|
|
LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox = NULL;
|
|
struct Scsi_Host *shost;
|
|
int i;
|
|
struct lpfc_dmabuf *mp;
|
|
int rc;
|
|
struct fcf_record *fcf_record;
|
|
uint32_t fc_flags = 0;
|
|
|
|
spin_lock_irq(&phba->hbalock);
|
|
switch (bf_get(lpfc_mbx_read_top_link_spd, la)) {
|
|
case LPFC_LINK_SPEED_1GHZ:
|
|
case LPFC_LINK_SPEED_2GHZ:
|
|
case LPFC_LINK_SPEED_4GHZ:
|
|
case LPFC_LINK_SPEED_8GHZ:
|
|
case LPFC_LINK_SPEED_10GHZ:
|
|
case LPFC_LINK_SPEED_16GHZ:
|
|
phba->fc_linkspeed = bf_get(lpfc_mbx_read_top_link_spd, la);
|
|
break;
|
|
default:
|
|
phba->fc_linkspeed = LPFC_LINK_SPEED_UNKNOWN;
|
|
break;
|
|
}
|
|
|
|
if (phba->fc_topology &&
|
|
phba->fc_topology != bf_get(lpfc_mbx_read_top_topology, la)) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
|
|
"3314 Toplogy changed was 0x%x is 0x%x\n",
|
|
phba->fc_topology,
|
|
bf_get(lpfc_mbx_read_top_topology, la));
|
|
phba->fc_topology_changed = 1;
|
|
}
|
|
|
|
phba->fc_topology = bf_get(lpfc_mbx_read_top_topology, la);
|
|
phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED;
|
|
|
|
shost = lpfc_shost_from_vport(vport);
|
|
if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
|
|
phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED;
|
|
|
|
/* if npiv is enabled and this adapter supports npiv log
|
|
* a message that npiv is not supported in this topology
|
|
*/
|
|
if (phba->cfg_enable_npiv && phba->max_vpi)
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
|
|
"1309 Link Up Event npiv not supported in loop "
|
|
"topology\n");
|
|
/* Get Loop Map information */
|
|
if (bf_get(lpfc_mbx_read_top_il, la))
|
|
fc_flags |= FC_LBIT;
|
|
|
|
vport->fc_myDID = bf_get(lpfc_mbx_read_top_alpa_granted, la);
|
|
i = la->lilpBde64.tus.f.bdeSize;
|
|
|
|
if (i == 0) {
|
|
phba->alpa_map[0] = 0;
|
|
} else {
|
|
if (vport->cfg_log_verbose & LOG_LINK_EVENT) {
|
|
int numalpa, j, k;
|
|
union {
|
|
uint8_t pamap[16];
|
|
struct {
|
|
uint32_t wd1;
|
|
uint32_t wd2;
|
|
uint32_t wd3;
|
|
uint32_t wd4;
|
|
} pa;
|
|
} un;
|
|
numalpa = phba->alpa_map[0];
|
|
j = 0;
|
|
while (j < numalpa) {
|
|
memset(un.pamap, 0, 16);
|
|
for (k = 1; j < numalpa; k++) {
|
|
un.pamap[k - 1] =
|
|
phba->alpa_map[j + 1];
|
|
j++;
|
|
if (k == 16)
|
|
break;
|
|
}
|
|
/* Link Up Event ALPA map */
|
|
lpfc_printf_log(phba,
|
|
KERN_WARNING,
|
|
LOG_LINK_EVENT,
|
|
"1304 Link Up Event "
|
|
"ALPA map Data: x%x "
|
|
"x%x x%x x%x\n",
|
|
un.pa.wd1, un.pa.wd2,
|
|
un.pa.wd3, un.pa.wd4);
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) {
|
|
if (phba->max_vpi && phba->cfg_enable_npiv &&
|
|
(phba->sli_rev >= LPFC_SLI_REV3))
|
|
phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
|
|
}
|
|
vport->fc_myDID = phba->fc_pref_DID;
|
|
fc_flags |= FC_LBIT;
|
|
}
|
|
spin_unlock_irq(&phba->hbalock);
|
|
|
|
if (fc_flags) {
|
|
spin_lock_irq(shost->host_lock);
|
|
vport->fc_flag |= fc_flags;
|
|
spin_unlock_irq(shost->host_lock);
|
|
}
|
|
|
|
lpfc_linkup(phba);
|
|
sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (!sparam_mbox)
|
|
goto out;
|
|
|
|
rc = lpfc_read_sparam(phba, sparam_mbox, 0);
|
|
if (rc) {
|
|
mempool_free(sparam_mbox, phba->mbox_mem_pool);
|
|
goto out;
|
|
}
|
|
sparam_mbox->vport = vport;
|
|
sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam;
|
|
rc = lpfc_sli_issue_mbox(phba, sparam_mbox, MBX_NOWAIT);
|
|
if (rc == MBX_NOT_FINISHED) {
|
|
mp = (struct lpfc_dmabuf *) sparam_mbox->context1;
|
|
lpfc_mbuf_free(phba, mp->virt, mp->phys);
|
|
kfree(mp);
|
|
mempool_free(sparam_mbox, phba->mbox_mem_pool);
|
|
goto out;
|
|
}
|
|
|
|
if (!(phba->hba_flag & HBA_FCOE_MODE)) {
|
|
cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (!cfglink_mbox)
|
|
goto out;
|
|
vport->port_state = LPFC_LOCAL_CFG_LINK;
|
|
lpfc_config_link(phba, cfglink_mbox);
|
|
cfglink_mbox->vport = vport;
|
|
cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link;
|
|
rc = lpfc_sli_issue_mbox(phba, cfglink_mbox, MBX_NOWAIT);
|
|
if (rc == MBX_NOT_FINISHED) {
|
|
mempool_free(cfglink_mbox, phba->mbox_mem_pool);
|
|
goto out;
|
|
}
|
|
} else {
|
|
vport->port_state = LPFC_VPORT_UNKNOWN;
|
|
/*
|
|
* Add the driver's default FCF record at FCF index 0 now. This
|
|
* is phase 1 implementation that support FCF index 0 and driver
|
|
* defaults.
|
|
*/
|
|
if (!(phba->hba_flag & HBA_FIP_SUPPORT)) {
|
|
fcf_record = kzalloc(sizeof(struct fcf_record),
|
|
GFP_KERNEL);
|
|
if (unlikely(!fcf_record)) {
|
|
lpfc_printf_log(phba, KERN_ERR,
|
|
LOG_MBOX | LOG_SLI,
|
|
"2554 Could not allocate memory for "
|
|
"fcf record\n");
|
|
rc = -ENODEV;
|
|
goto out;
|
|
}
|
|
|
|
lpfc_sli4_build_dflt_fcf_record(phba, fcf_record,
|
|
LPFC_FCOE_FCF_DEF_INDEX);
|
|
rc = lpfc_sli4_add_fcf_record(phba, fcf_record);
|
|
if (unlikely(rc)) {
|
|
lpfc_printf_log(phba, KERN_ERR,
|
|
LOG_MBOX | LOG_SLI,
|
|
"2013 Could not manually add FCF "
|
|
"record 0, status %d\n", rc);
|
|
rc = -ENODEV;
|
|
kfree(fcf_record);
|
|
goto out;
|
|
}
|
|
kfree(fcf_record);
|
|
}
|
|
/*
|
|
* The driver is expected to do FIP/FCF. Call the port
|
|
* and get the FCF Table.
|
|
*/
|
|
spin_lock_irq(&phba->hbalock);
|
|
if (phba->hba_flag & FCF_TS_INPROG) {
|
|
spin_unlock_irq(&phba->hbalock);
|
|
return;
|
|
}
|
|
/* This is the initial FCF discovery scan */
|
|
phba->fcf.fcf_flag |= FCF_INIT_DISC;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
|
|
"2778 Start FCF table scan at linkup\n");
|
|
rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
|
|
LPFC_FCOE_FCF_GET_FIRST);
|
|
if (rc) {
|
|
spin_lock_irq(&phba->hbalock);
|
|
phba->fcf.fcf_flag &= ~FCF_INIT_DISC;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
goto out;
|
|
}
|
|
/* Reset FCF roundrobin bmask for new discovery */
|
|
lpfc_sli4_clear_fcf_rr_bmask(phba);
|
|
}
|
|
|
|
return;
|
|
out:
|
|
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
|
|
"0263 Discovery Mailbox error: state: 0x%x : %p %p\n",
|
|
vport->port_state, sparam_mbox, cfglink_mbox);
|
|
lpfc_issue_clear_la(phba, vport);
|
|
return;
|
|
}
|
|
|
|
static void
|
|
lpfc_enable_la(struct lpfc_hba *phba)
|
|
{
|
|
uint32_t control;
|
|
struct lpfc_sli *psli = &phba->sli;
|
|
spin_lock_irq(&phba->hbalock);
|
|
psli->sli_flag |= LPFC_PROCESS_LA;
|
|
if (phba->sli_rev <= LPFC_SLI_REV3) {
|
|
control = readl(phba->HCregaddr);
|
|
control |= HC_LAINT_ENA;
|
|
writel(control, phba->HCregaddr);
|
|
readl(phba->HCregaddr); /* flush */
|
|
}
|
|
spin_unlock_irq(&phba->hbalock);
|
|
}
|
|
|
|
static void
|
|
lpfc_mbx_issue_link_down(struct lpfc_hba *phba)
|
|
{
|
|
lpfc_linkdown(phba);
|
|
lpfc_enable_la(phba);
|
|
lpfc_unregister_unused_fcf(phba);
|
|
/* turn on Link Attention interrupts - no CLEAR_LA needed */
|
|
}
|
|
|
|
|
|
/*
|
|
* This routine handles processing a READ_TOPOLOGY mailbox
|
|
* command upon completion. It is setup in the LPFC_MBOXQ
|
|
* as the completion routine when the command is
|
|
* handed off to the SLI layer.
|
|
*/
|
|
void
|
|
lpfc_mbx_cmpl_read_topology(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
|
|
{
|
|
struct lpfc_vport *vport = pmb->vport;
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
struct lpfc_mbx_read_top *la;
|
|
MAILBOX_t *mb = &pmb->u.mb;
|
|
struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
|
|
|
|
/* Unblock ELS traffic */
|
|
phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
|
|
/* Check for error */
|
|
if (mb->mbxStatus) {
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
|
|
"1307 READ_LA mbox error x%x state x%x\n",
|
|
mb->mbxStatus, vport->port_state);
|
|
lpfc_mbx_issue_link_down(phba);
|
|
phba->link_state = LPFC_HBA_ERROR;
|
|
goto lpfc_mbx_cmpl_read_topology_free_mbuf;
|
|
}
|
|
|
|
la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
|
|
|
|
memcpy(&phba->alpa_map[0], mp->virt, 128);
|
|
|
|
spin_lock_irq(shost->host_lock);
|
|
if (bf_get(lpfc_mbx_read_top_pb, la))
|
|
vport->fc_flag |= FC_BYPASSED_MODE;
|
|
else
|
|
vport->fc_flag &= ~FC_BYPASSED_MODE;
|
|
spin_unlock_irq(shost->host_lock);
|
|
|
|
if (phba->fc_eventTag <= la->eventTag) {
|
|
phba->fc_stat.LinkMultiEvent++;
|
|
if (bf_get(lpfc_mbx_read_top_att_type, la) == LPFC_ATT_LINK_UP)
|
|
if (phba->fc_eventTag != 0)
|
|
lpfc_linkdown(phba);
|
|
}
|
|
|
|
phba->fc_eventTag = la->eventTag;
|
|
if (phba->sli_rev < LPFC_SLI_REV4) {
|
|
spin_lock_irq(&phba->hbalock);
|
|
if (bf_get(lpfc_mbx_read_top_mm, la))
|
|
phba->sli.sli_flag |= LPFC_MENLO_MAINT;
|
|
else
|
|
phba->sli.sli_flag &= ~LPFC_MENLO_MAINT;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
}
|
|
|
|
phba->link_events++;
|
|
if ((bf_get(lpfc_mbx_read_top_att_type, la) == LPFC_ATT_LINK_UP) &&
|
|
!(phba->sli.sli_flag & LPFC_MENLO_MAINT)) {
|
|
phba->fc_stat.LinkUp++;
|
|
if (phba->link_flag & LS_LOOPBACK_MODE) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
|
|
"1306 Link Up Event in loop back mode "
|
|
"x%x received Data: x%x x%x x%x x%x\n",
|
|
la->eventTag, phba->fc_eventTag,
|
|
bf_get(lpfc_mbx_read_top_alpa_granted,
|
|
la),
|
|
bf_get(lpfc_mbx_read_top_link_spd, la),
|
|
phba->alpa_map[0]);
|
|
} else {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
|
|
"1303 Link Up Event x%x received "
|
|
"Data: x%x x%x x%x x%x x%x x%x %d\n",
|
|
la->eventTag, phba->fc_eventTag,
|
|
bf_get(lpfc_mbx_read_top_alpa_granted,
|
|
la),
|
|
bf_get(lpfc_mbx_read_top_link_spd, la),
|
|
phba->alpa_map[0],
|
|
bf_get(lpfc_mbx_read_top_mm, la),
|
|
bf_get(lpfc_mbx_read_top_fa, la),
|
|
phba->wait_4_mlo_maint_flg);
|
|
}
|
|
lpfc_mbx_process_link_up(phba, la);
|
|
} else if (bf_get(lpfc_mbx_read_top_att_type, la) ==
|
|
LPFC_ATT_LINK_DOWN) {
|
|
phba->fc_stat.LinkDown++;
|
|
if (phba->link_flag & LS_LOOPBACK_MODE)
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
|
|
"1308 Link Down Event in loop back mode "
|
|
"x%x received "
|
|
"Data: x%x x%x x%x\n",
|
|
la->eventTag, phba->fc_eventTag,
|
|
phba->pport->port_state, vport->fc_flag);
|
|
else
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
|
|
"1305 Link Down Event x%x received "
|
|
"Data: x%x x%x x%x x%x x%x\n",
|
|
la->eventTag, phba->fc_eventTag,
|
|
phba->pport->port_state, vport->fc_flag,
|
|
bf_get(lpfc_mbx_read_top_mm, la),
|
|
bf_get(lpfc_mbx_read_top_fa, la));
|
|
lpfc_mbx_issue_link_down(phba);
|
|
}
|
|
if ((phba->sli.sli_flag & LPFC_MENLO_MAINT) &&
|
|
((bf_get(lpfc_mbx_read_top_att_type, la) == LPFC_ATT_LINK_UP))) {
|
|
if (phba->link_state != LPFC_LINK_DOWN) {
|
|
phba->fc_stat.LinkDown++;
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
|
|
"1312 Link Down Event x%x received "
|
|
"Data: x%x x%x x%x\n",
|
|
la->eventTag, phba->fc_eventTag,
|
|
phba->pport->port_state, vport->fc_flag);
|
|
lpfc_mbx_issue_link_down(phba);
|
|
} else
|
|
lpfc_enable_la(phba);
|
|
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
|
|
"1310 Menlo Maint Mode Link up Event x%x rcvd "
|
|
"Data: x%x x%x x%x\n",
|
|
la->eventTag, phba->fc_eventTag,
|
|
phba->pport->port_state, vport->fc_flag);
|
|
/*
|
|
* The cmnd that triggered this will be waiting for this
|
|
* signal.
|
|
*/
|
|
/* WAKEUP for MENLO_SET_MODE or MENLO_RESET command. */
|
|
if (phba->wait_4_mlo_maint_flg) {
|
|
phba->wait_4_mlo_maint_flg = 0;
|
|
wake_up_interruptible(&phba->wait_4_mlo_m_q);
|
|
}
|
|
}
|
|
|
|
if ((phba->sli_rev < LPFC_SLI_REV4) &&
|
|
bf_get(lpfc_mbx_read_top_fa, la)) {
|
|
if (phba->sli.sli_flag & LPFC_MENLO_MAINT)
|
|
lpfc_issue_clear_la(phba, vport);
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
|
|
"1311 fa %d\n",
|
|
bf_get(lpfc_mbx_read_top_fa, la));
|
|
}
|
|
|
|
lpfc_mbx_cmpl_read_topology_free_mbuf:
|
|
lpfc_mbuf_free(phba, mp->virt, mp->phys);
|
|
kfree(mp);
|
|
mempool_free(pmb, phba->mbox_mem_pool);
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* This routine handles processing a REG_LOGIN mailbox
|
|
* command upon completion. It is setup in the LPFC_MBOXQ
|
|
* as the completion routine when the command is
|
|
* handed off to the SLI layer.
|
|
*/
|
|
void
|
|
lpfc_mbx_cmpl_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
|
|
{
|
|
struct lpfc_vport *vport = pmb->vport;
|
|
struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
|
|
struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
|
|
pmb->context1 = NULL;
|
|
pmb->context2 = NULL;
|
|
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
|
|
"0002 rpi:%x DID:%x flg:%x %d map:%x %p\n",
|
|
ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag,
|
|
atomic_read(&ndlp->kref.refcount),
|
|
ndlp->nlp_usg_map, ndlp);
|
|
if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND)
|
|
ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;
|
|
|
|
if (ndlp->nlp_flag & NLP_IGNR_REG_CMPL ||
|
|
ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) {
|
|
/* We rcvd a rscn after issuing this
|
|
* mbox reg login, we may have cycled
|
|
* back through the state and be
|
|
* back at reg login state so this
|
|
* mbox needs to be ignored becase
|
|
* there is another reg login in
|
|
* process.
|
|
*/
|
|
spin_lock_irq(shost->host_lock);
|
|
ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
|
|
spin_unlock_irq(shost->host_lock);
|
|
} else
|
|
/* Good status, call state machine */
|
|
lpfc_disc_state_machine(vport, ndlp, pmb,
|
|
NLP_EVT_CMPL_REG_LOGIN);
|
|
|
|
lpfc_mbuf_free(phba, mp->virt, mp->phys);
|
|
kfree(mp);
|
|
mempool_free(pmb, phba->mbox_mem_pool);
|
|
/* decrement the node reference count held for this callback
|
|
* function.
|
|
*/
|
|
lpfc_nlp_put(ndlp);
|
|
|
|
return;
|
|
}
|
|
|
|
static void
|
|
lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
|
|
{
|
|
MAILBOX_t *mb = &pmb->u.mb;
|
|
struct lpfc_vport *vport = pmb->vport;
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
|
|
switch (mb->mbxStatus) {
|
|
case 0x0011:
|
|
case 0x0020:
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
|
|
"0911 cmpl_unreg_vpi, mb status = 0x%x\n",
|
|
mb->mbxStatus);
|
|
break;
|
|
/* If VPI is busy, reset the HBA */
|
|
case 0x9700:
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE,
|
|
"2798 Unreg_vpi failed vpi 0x%x, mb status = 0x%x\n",
|
|
vport->vpi, mb->mbxStatus);
|
|
if (!(phba->pport->load_flag & FC_UNLOADING))
|
|
lpfc_workq_post_event(phba, NULL, NULL,
|
|
LPFC_EVT_RESET_HBA);
|
|
}
|
|
spin_lock_irq(shost->host_lock);
|
|
vport->vpi_state &= ~LPFC_VPI_REGISTERED;
|
|
vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
|
|
spin_unlock_irq(shost->host_lock);
|
|
vport->unreg_vpi_cmpl = VPORT_OK;
|
|
mempool_free(pmb, phba->mbox_mem_pool);
|
|
lpfc_cleanup_vports_rrqs(vport, NULL);
|
|
/*
|
|
* This shost reference might have been taken at the beginning of
|
|
* lpfc_vport_delete()
|
|
*/
|
|
if ((vport->load_flag & FC_UNLOADING) && (vport != phba->pport))
|
|
scsi_host_put(shost);
|
|
}
|
|
|
|
int
|
|
lpfc_mbx_unreg_vpi(struct lpfc_vport *vport)
|
|
{
|
|
struct lpfc_hba *phba = vport->phba;
|
|
LPFC_MBOXQ_t *mbox;
|
|
int rc;
|
|
|
|
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (!mbox)
|
|
return 1;
|
|
|
|
lpfc_unreg_vpi(phba, vport->vpi, mbox);
|
|
mbox->vport = vport;
|
|
mbox->mbox_cmpl = lpfc_mbx_cmpl_unreg_vpi;
|
|
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
|
|
if (rc == MBX_NOT_FINISHED) {
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
|
|
"1800 Could not issue unreg_vpi\n");
|
|
mempool_free(mbox, phba->mbox_mem_pool);
|
|
vport->unreg_vpi_cmpl = VPORT_ERROR;
|
|
return rc;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
|
|
{
|
|
struct lpfc_vport *vport = pmb->vport;
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
MAILBOX_t *mb = &pmb->u.mb;
|
|
|
|
switch (mb->mbxStatus) {
|
|
case 0x0011:
|
|
case 0x9601:
|
|
case 0x9602:
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
|
|
"0912 cmpl_reg_vpi, mb status = 0x%x\n",
|
|
mb->mbxStatus);
|
|
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
|
|
spin_lock_irq(shost->host_lock);
|
|
vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
|
|
spin_unlock_irq(shost->host_lock);
|
|
vport->fc_myDID = 0;
|
|
goto out;
|
|
}
|
|
|
|
spin_lock_irq(shost->host_lock);
|
|
vport->vpi_state |= LPFC_VPI_REGISTERED;
|
|
vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
|
|
spin_unlock_irq(shost->host_lock);
|
|
vport->num_disc_nodes = 0;
|
|
/* go thru NPR list and issue ELS PLOGIs */
|
|
if (vport->fc_npr_cnt)
|
|
lpfc_els_disc_plogi(vport);
|
|
|
|
if (!vport->num_disc_nodes) {
|
|
spin_lock_irq(shost->host_lock);
|
|
vport->fc_flag &= ~FC_NDISC_ACTIVE;
|
|
spin_unlock_irq(shost->host_lock);
|
|
lpfc_can_disctmo(vport);
|
|
}
|
|
vport->port_state = LPFC_VPORT_READY;
|
|
|
|
out:
|
|
mempool_free(pmb, phba->mbox_mem_pool);
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* lpfc_create_static_vport - Read HBA config region to create static vports.
|
|
* @phba: pointer to lpfc hba data structure.
|
|
*
|
|
* This routine issue a DUMP mailbox command for config region 22 to get
|
|
* the list of static vports to be created. The function create vports
|
|
* based on the information returned from the HBA.
|
|
**/
|
|
void
|
|
lpfc_create_static_vport(struct lpfc_hba *phba)
|
|
{
|
|
LPFC_MBOXQ_t *pmb = NULL;
|
|
MAILBOX_t *mb;
|
|
struct static_vport_info *vport_info;
|
|
int mbx_wait_rc = 0, i;
|
|
struct fc_vport_identifiers vport_id;
|
|
struct fc_vport *new_fc_vport;
|
|
struct Scsi_Host *shost;
|
|
struct lpfc_vport *vport;
|
|
uint16_t offset = 0;
|
|
uint8_t *vport_buff;
|
|
struct lpfc_dmabuf *mp;
|
|
uint32_t byte_count = 0;
|
|
|
|
pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (!pmb) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
|
|
"0542 lpfc_create_static_vport failed to"
|
|
" allocate mailbox memory\n");
|
|
return;
|
|
}
|
|
memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
|
|
mb = &pmb->u.mb;
|
|
|
|
vport_info = kzalloc(sizeof(struct static_vport_info), GFP_KERNEL);
|
|
if (!vport_info) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
|
|
"0543 lpfc_create_static_vport failed to"
|
|
" allocate vport_info\n");
|
|
mempool_free(pmb, phba->mbox_mem_pool);
|
|
return;
|
|
}
|
|
|
|
vport_buff = (uint8_t *) vport_info;
|
|
do {
|
|
/* free dma buffer from previous round */
|
|
if (pmb->context1) {
|
|
mp = (struct lpfc_dmabuf *)pmb->context1;
|
|
lpfc_mbuf_free(phba, mp->virt, mp->phys);
|
|
kfree(mp);
|
|
}
|
|
if (lpfc_dump_static_vport(phba, pmb, offset))
|
|
goto out;
|
|
|
|
pmb->vport = phba->pport;
|
|
mbx_wait_rc = lpfc_sli_issue_mbox_wait(phba, pmb,
|
|
LPFC_MBOX_TMO);
|
|
|
|
if ((mbx_wait_rc != MBX_SUCCESS) || mb->mbxStatus) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
|
|
"0544 lpfc_create_static_vport failed to"
|
|
" issue dump mailbox command ret 0x%x "
|
|
"status 0x%x\n",
|
|
mbx_wait_rc, mb->mbxStatus);
|
|
goto out;
|
|
}
|
|
|
|
if (phba->sli_rev == LPFC_SLI_REV4) {
|
|
byte_count = pmb->u.mqe.un.mb_words[5];
|
|
mp = (struct lpfc_dmabuf *)pmb->context1;
|
|
if (byte_count > sizeof(struct static_vport_info) -
|
|
offset)
|
|
byte_count = sizeof(struct static_vport_info)
|
|
- offset;
|
|
memcpy(vport_buff + offset, mp->virt, byte_count);
|
|
offset += byte_count;
|
|
} else {
|
|
if (mb->un.varDmp.word_cnt >
|
|
sizeof(struct static_vport_info) - offset)
|
|
mb->un.varDmp.word_cnt =
|
|
sizeof(struct static_vport_info)
|
|
- offset;
|
|
byte_count = mb->un.varDmp.word_cnt;
|
|
lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
|
|
vport_buff + offset,
|
|
byte_count);
|
|
|
|
offset += byte_count;
|
|
}
|
|
|
|
} while (byte_count &&
|
|
offset < sizeof(struct static_vport_info));
|
|
|
|
|
|
if ((le32_to_cpu(vport_info->signature) != VPORT_INFO_SIG) ||
|
|
((le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK)
|
|
!= VPORT_INFO_REV)) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
|
|
"0545 lpfc_create_static_vport bad"
|
|
" information header 0x%x 0x%x\n",
|
|
le32_to_cpu(vport_info->signature),
|
|
le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK);
|
|
|
|
goto out;
|
|
}
|
|
|
|
shost = lpfc_shost_from_vport(phba->pport);
|
|
|
|
for (i = 0; i < MAX_STATIC_VPORT_COUNT; i++) {
|
|
memset(&vport_id, 0, sizeof(vport_id));
|
|
vport_id.port_name = wwn_to_u64(vport_info->vport_list[i].wwpn);
|
|
vport_id.node_name = wwn_to_u64(vport_info->vport_list[i].wwnn);
|
|
if (!vport_id.port_name || !vport_id.node_name)
|
|
continue;
|
|
|
|
vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR;
|
|
vport_id.vport_type = FC_PORTTYPE_NPIV;
|
|
vport_id.disable = false;
|
|
new_fc_vport = fc_vport_create(shost, 0, &vport_id);
|
|
|
|
if (!new_fc_vport) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
|
|
"0546 lpfc_create_static_vport failed to"
|
|
" create vport\n");
|
|
continue;
|
|
}
|
|
|
|
vport = *(struct lpfc_vport **)new_fc_vport->dd_data;
|
|
vport->vport_flag |= STATIC_VPORT;
|
|
}
|
|
|
|
out:
|
|
kfree(vport_info);
|
|
if (mbx_wait_rc != MBX_TIMEOUT) {
|
|
if (pmb->context1) {
|
|
mp = (struct lpfc_dmabuf *)pmb->context1;
|
|
lpfc_mbuf_free(phba, mp->virt, mp->phys);
|
|
kfree(mp);
|
|
}
|
|
mempool_free(pmb, phba->mbox_mem_pool);
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* This routine handles processing a Fabric REG_LOGIN mailbox
|
|
* command upon completion. It is setup in the LPFC_MBOXQ
|
|
* as the completion routine when the command is
|
|
* handed off to the SLI layer.
|
|
*/
|
|
void
|
|
lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
|
|
{
|
|
struct lpfc_vport *vport = pmb->vport;
|
|
MAILBOX_t *mb = &pmb->u.mb;
|
|
struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
|
|
struct lpfc_nodelist *ndlp;
|
|
struct Scsi_Host *shost;
|
|
|
|
ndlp = (struct lpfc_nodelist *) pmb->context2;
|
|
pmb->context1 = NULL;
|
|
pmb->context2 = NULL;
|
|
|
|
if (mb->mbxStatus) {
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
|
|
"0258 Register Fabric login error: 0x%x\n",
|
|
mb->mbxStatus);
|
|
lpfc_mbuf_free(phba, mp->virt, mp->phys);
|
|
kfree(mp);
|
|
mempool_free(pmb, phba->mbox_mem_pool);
|
|
|
|
if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
|
|
/* FLOGI failed, use loop map to make discovery list */
|
|
lpfc_disc_list_loopmap(vport);
|
|
|
|
/* Start discovery */
|
|
lpfc_disc_start(vport);
|
|
/* Decrement the reference count to ndlp after the
|
|
* reference to the ndlp are done.
|
|
*/
|
|
lpfc_nlp_put(ndlp);
|
|
return;
|
|
}
|
|
|
|
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
|
|
/* Decrement the reference count to ndlp after the reference
|
|
* to the ndlp are done.
|
|
*/
|
|
lpfc_nlp_put(ndlp);
|
|
return;
|
|
}
|
|
|
|
if (phba->sli_rev < LPFC_SLI_REV4)
|
|
ndlp->nlp_rpi = mb->un.varWords[0];
|
|
ndlp->nlp_flag |= NLP_RPI_REGISTERED;
|
|
ndlp->nlp_type |= NLP_FABRIC;
|
|
lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
|
|
|
|
if (vport->port_state == LPFC_FABRIC_CFG_LINK) {
|
|
/* when physical port receive logo donot start
|
|
* vport discovery */
|
|
if (!(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG))
|
|
lpfc_start_fdiscs(phba);
|
|
else {
|
|
shost = lpfc_shost_from_vport(vport);
|
|
spin_lock_irq(shost->host_lock);
|
|
vport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG ;
|
|
spin_unlock_irq(shost->host_lock);
|
|
}
|
|
lpfc_do_scr_ns_plogi(phba, vport);
|
|
}
|
|
|
|
lpfc_mbuf_free(phba, mp->virt, mp->phys);
|
|
kfree(mp);
|
|
mempool_free(pmb, phba->mbox_mem_pool);
|
|
|
|
/* Drop the reference count from the mbox at the end after
|
|
* all the current reference to the ndlp have been done.
|
|
*/
|
|
lpfc_nlp_put(ndlp);
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* This routine handles processing a NameServer REG_LOGIN mailbox
|
|
* command upon completion. It is setup in the LPFC_MBOXQ
|
|
* as the completion routine when the command is
|
|
* handed off to the SLI layer.
|
|
*/
|
|
void
|
|
lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
|
|
{
|
|
MAILBOX_t *mb = &pmb->u.mb;
|
|
struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
|
|
struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
|
|
struct lpfc_vport *vport = pmb->vport;
|
|
|
|
pmb->context1 = NULL;
|
|
pmb->context2 = NULL;
|
|
|
|
if (mb->mbxStatus) {
|
|
out:
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
|
|
"0260 Register NameServer error: 0x%x\n",
|
|
mb->mbxStatus);
|
|
/* decrement the node reference count held for this
|
|
* callback function.
|
|
*/
|
|
lpfc_nlp_put(ndlp);
|
|
lpfc_mbuf_free(phba, mp->virt, mp->phys);
|
|
kfree(mp);
|
|
mempool_free(pmb, phba->mbox_mem_pool);
|
|
|
|
/* If no other thread is using the ndlp, free it */
|
|
lpfc_nlp_not_used(ndlp);
|
|
|
|
if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
|
|
/*
|
|
* RegLogin failed, use loop map to make discovery
|
|
* list
|
|
*/
|
|
lpfc_disc_list_loopmap(vport);
|
|
|
|
/* Start discovery */
|
|
lpfc_disc_start(vport);
|
|
return;
|
|
}
|
|
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
|
|
return;
|
|
}
|
|
|
|
if (phba->sli_rev < LPFC_SLI_REV4)
|
|
ndlp->nlp_rpi = mb->un.varWords[0];
|
|
ndlp->nlp_flag |= NLP_RPI_REGISTERED;
|
|
ndlp->nlp_type |= NLP_FABRIC;
|
|
lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
|
|
"0003 rpi:%x DID:%x flg:%x %d map%x %p\n",
|
|
ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag,
|
|
atomic_read(&ndlp->kref.refcount),
|
|
ndlp->nlp_usg_map, ndlp);
|
|
|
|
if (vport->port_state < LPFC_VPORT_READY) {
|
|
/* Link up discovery requires Fabric registration. */
|
|
lpfc_ns_cmd(vport, SLI_CTNS_RNN_ID, 0, 0);
|
|
lpfc_ns_cmd(vport, SLI_CTNS_RSNN_NN, 0, 0);
|
|
lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0);
|
|
lpfc_ns_cmd(vport, SLI_CTNS_RFT_ID, 0, 0);
|
|
lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, 0);
|
|
|
|
/* Issue SCR just before NameServer GID_FT Query */
|
|
lpfc_issue_els_scr(vport, SCR_DID, 0);
|
|
}
|
|
|
|
vport->fc_ns_retry = 0;
|
|
/* Good status, issue CT Request to NameServer */
|
|
if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, 0)) {
|
|
/* Cannot issue NameServer Query, so finish up discovery */
|
|
goto out;
|
|
}
|
|
|
|
/* decrement the node reference count held for this
|
|
* callback function.
|
|
*/
|
|
lpfc_nlp_put(ndlp);
|
|
lpfc_mbuf_free(phba, mp->virt, mp->phys);
|
|
kfree(mp);
|
|
mempool_free(pmb, phba->mbox_mem_pool);
|
|
|
|
return;
|
|
}
|
|
|
|
static void
|
|
lpfc_register_remote_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
|
|
{
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
struct fc_rport *rport;
|
|
struct lpfc_rport_data *rdata;
|
|
struct fc_rport_identifiers rport_ids;
|
|
struct lpfc_hba *phba = vport->phba;
|
|
|
|
/* Remote port has reappeared. Re-register w/ FC transport */
|
|
rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
|
|
rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
|
|
rport_ids.port_id = ndlp->nlp_DID;
|
|
rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
|
|
|
|
/*
|
|
* We leave our node pointer in rport->dd_data when we unregister a
|
|
* FCP target port. But fc_remote_port_add zeros the space to which
|
|
* rport->dd_data points. So, if we're reusing a previously
|
|
* registered port, drop the reference that we took the last time we
|
|
* registered the port.
|
|
*/
|
|
rport = ndlp->rport;
|
|
if (rport) {
|
|
rdata = rport->dd_data;
|
|
/* break the link before dropping the ref */
|
|
ndlp->rport = NULL;
|
|
if (rdata && rdata->pnode == ndlp)
|
|
lpfc_nlp_put(ndlp);
|
|
rdata->pnode = NULL;
|
|
/* drop reference for earlier registeration */
|
|
put_device(&rport->dev);
|
|
}
|
|
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
|
|
"rport add: did:x%x flg:x%x type x%x",
|
|
ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
|
|
|
|
/* Don't add the remote port if unloading. */
|
|
if (vport->load_flag & FC_UNLOADING)
|
|
return;
|
|
|
|
ndlp->rport = rport = fc_remote_port_add(shost, 0, &rport_ids);
|
|
if (!rport || !get_device(&rport->dev)) {
|
|
dev_printk(KERN_WARNING, &phba->pcidev->dev,
|
|
"Warning: fc_remote_port_add failed\n");
|
|
return;
|
|
}
|
|
|
|
/* initialize static port data */
|
|
rport->maxframe_size = ndlp->nlp_maxframe;
|
|
rport->supported_classes = ndlp->nlp_class_sup;
|
|
rdata = rport->dd_data;
|
|
rdata->pnode = lpfc_nlp_get(ndlp);
|
|
|
|
if (ndlp->nlp_type & NLP_FCP_TARGET)
|
|
rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
|
|
if (ndlp->nlp_type & NLP_FCP_INITIATOR)
|
|
rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
|
|
|
|
if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN)
|
|
fc_remote_port_rolechg(rport, rport_ids.roles);
|
|
|
|
lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
|
|
"3183 rport register x%06x, rport %p role x%x\n",
|
|
ndlp->nlp_DID, rport, rport_ids.roles);
|
|
|
|
if ((rport->scsi_target_id != -1) &&
|
|
(rport->scsi_target_id < LPFC_MAX_TARGET)) {
|
|
ndlp->nlp_sid = rport->scsi_target_id;
|
|
}
|
|
return;
|
|
}
|
|
|
|
static void
|
|
lpfc_unregister_remote_port(struct lpfc_nodelist *ndlp)
|
|
{
|
|
struct fc_rport *rport = ndlp->rport;
|
|
|
|
lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_RPORT,
|
|
"rport delete: did:x%x flg:x%x type x%x",
|
|
ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
|
|
|
|
lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
|
|
"3184 rport unregister x%06x, rport %p\n",
|
|
ndlp->nlp_DID, rport);
|
|
|
|
fc_remote_port_delete(rport);
|
|
|
|
return;
|
|
}
|
|
|
|
static void
|
|
lpfc_nlp_counters(struct lpfc_vport *vport, int state, int count)
|
|
{
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
|
|
spin_lock_irq(shost->host_lock);
|
|
switch (state) {
|
|
case NLP_STE_UNUSED_NODE:
|
|
vport->fc_unused_cnt += count;
|
|
break;
|
|
case NLP_STE_PLOGI_ISSUE:
|
|
vport->fc_plogi_cnt += count;
|
|
break;
|
|
case NLP_STE_ADISC_ISSUE:
|
|
vport->fc_adisc_cnt += count;
|
|
break;
|
|
case NLP_STE_REG_LOGIN_ISSUE:
|
|
vport->fc_reglogin_cnt += count;
|
|
break;
|
|
case NLP_STE_PRLI_ISSUE:
|
|
vport->fc_prli_cnt += count;
|
|
break;
|
|
case NLP_STE_UNMAPPED_NODE:
|
|
vport->fc_unmap_cnt += count;
|
|
break;
|
|
case NLP_STE_MAPPED_NODE:
|
|
vport->fc_map_cnt += count;
|
|
break;
|
|
case NLP_STE_NPR_NODE:
|
|
if (vport->fc_npr_cnt == 0 && count == -1)
|
|
vport->fc_npr_cnt = 0;
|
|
else
|
|
vport->fc_npr_cnt += count;
|
|
break;
|
|
}
|
|
spin_unlock_irq(shost->host_lock);
|
|
}
|
|
|
|
static void
|
|
lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
|
|
int old_state, int new_state)
|
|
{
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
|
|
if (new_state == NLP_STE_UNMAPPED_NODE) {
|
|
ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
|
|
ndlp->nlp_type |= NLP_FC_NODE;
|
|
}
|
|
if (new_state == NLP_STE_MAPPED_NODE)
|
|
ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
|
|
if (new_state == NLP_STE_NPR_NODE)
|
|
ndlp->nlp_flag &= ~NLP_RCV_PLOGI;
|
|
|
|
/* Transport interface */
|
|
if (ndlp->rport && (old_state == NLP_STE_MAPPED_NODE ||
|
|
old_state == NLP_STE_UNMAPPED_NODE)) {
|
|
vport->phba->nport_event_cnt++;
|
|
lpfc_unregister_remote_port(ndlp);
|
|
}
|
|
|
|
if (new_state == NLP_STE_MAPPED_NODE ||
|
|
new_state == NLP_STE_UNMAPPED_NODE) {
|
|
vport->phba->nport_event_cnt++;
|
|
/*
|
|
* Tell the fc transport about the port, if we haven't
|
|
* already. If we have, and it's a scsi entity, be
|
|
* sure to unblock any attached scsi devices
|
|
*/
|
|
lpfc_register_remote_port(vport, ndlp);
|
|
}
|
|
if ((new_state == NLP_STE_MAPPED_NODE) &&
|
|
(vport->stat_data_enabled)) {
|
|
/*
|
|
* A new target is discovered, if there is no buffer for
|
|
* statistical data collection allocate buffer.
|
|
*/
|
|
ndlp->lat_data = kcalloc(LPFC_MAX_BUCKET_COUNT,
|
|
sizeof(struct lpfc_scsicmd_bkt),
|
|
GFP_KERNEL);
|
|
|
|
if (!ndlp->lat_data)
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE,
|
|
"0286 lpfc_nlp_state_cleanup failed to "
|
|
"allocate statistical data buffer DID "
|
|
"0x%x\n", ndlp->nlp_DID);
|
|
}
|
|
/*
|
|
* if we added to Mapped list, but the remote port
|
|
* registration failed or assigned a target id outside
|
|
* our presentable range - move the node to the
|
|
* Unmapped List
|
|
*/
|
|
if (new_state == NLP_STE_MAPPED_NODE &&
|
|
(!ndlp->rport ||
|
|
ndlp->rport->scsi_target_id == -1 ||
|
|
ndlp->rport->scsi_target_id >= LPFC_MAX_TARGET)) {
|
|
spin_lock_irq(shost->host_lock);
|
|
ndlp->nlp_flag |= NLP_TGT_NO_SCSIID;
|
|
spin_unlock_irq(shost->host_lock);
|
|
lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
|
|
}
|
|
}
|
|
|
|
static char *
|
|
lpfc_nlp_state_name(char *buffer, size_t size, int state)
|
|
{
|
|
static char *states[] = {
|
|
[NLP_STE_UNUSED_NODE] = "UNUSED",
|
|
[NLP_STE_PLOGI_ISSUE] = "PLOGI",
|
|
[NLP_STE_ADISC_ISSUE] = "ADISC",
|
|
[NLP_STE_REG_LOGIN_ISSUE] = "REGLOGIN",
|
|
[NLP_STE_PRLI_ISSUE] = "PRLI",
|
|
[NLP_STE_LOGO_ISSUE] = "LOGO",
|
|
[NLP_STE_UNMAPPED_NODE] = "UNMAPPED",
|
|
[NLP_STE_MAPPED_NODE] = "MAPPED",
|
|
[NLP_STE_NPR_NODE] = "NPR",
|
|
};
|
|
|
|
if (state < NLP_STE_MAX_STATE && states[state])
|
|
strlcpy(buffer, states[state], size);
|
|
else
|
|
snprintf(buffer, size, "unknown (%d)", state);
|
|
return buffer;
|
|
}
|
|
|
|
void
|
|
lpfc_nlp_set_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
|
|
int state)
|
|
{
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
int old_state = ndlp->nlp_state;
|
|
char name1[16], name2[16];
|
|
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
|
|
"0904 NPort state transition x%06x, %s -> %s\n",
|
|
ndlp->nlp_DID,
|
|
lpfc_nlp_state_name(name1, sizeof(name1), old_state),
|
|
lpfc_nlp_state_name(name2, sizeof(name2), state));
|
|
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
|
|
"node statechg did:x%x old:%d ste:%d",
|
|
ndlp->nlp_DID, old_state, state);
|
|
|
|
if (old_state == NLP_STE_NPR_NODE &&
|
|
state != NLP_STE_NPR_NODE)
|
|
lpfc_cancel_retry_delay_tmo(vport, ndlp);
|
|
if (old_state == NLP_STE_UNMAPPED_NODE) {
|
|
ndlp->nlp_flag &= ~NLP_TGT_NO_SCSIID;
|
|
ndlp->nlp_type &= ~NLP_FC_NODE;
|
|
}
|
|
|
|
if (list_empty(&ndlp->nlp_listp)) {
|
|
spin_lock_irq(shost->host_lock);
|
|
list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes);
|
|
spin_unlock_irq(shost->host_lock);
|
|
} else if (old_state)
|
|
lpfc_nlp_counters(vport, old_state, -1);
|
|
|
|
ndlp->nlp_state = state;
|
|
lpfc_nlp_counters(vport, state, 1);
|
|
lpfc_nlp_state_cleanup(vport, ndlp, old_state, state);
|
|
}
|
|
|
|
void
|
|
lpfc_enqueue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
|
|
{
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
|
|
if (list_empty(&ndlp->nlp_listp)) {
|
|
spin_lock_irq(shost->host_lock);
|
|
list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes);
|
|
spin_unlock_irq(shost->host_lock);
|
|
}
|
|
}
|
|
|
|
void
|
|
lpfc_dequeue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
|
|
{
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
|
|
lpfc_cancel_retry_delay_tmo(vport, ndlp);
|
|
if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp))
|
|
lpfc_nlp_counters(vport, ndlp->nlp_state, -1);
|
|
spin_lock_irq(shost->host_lock);
|
|
list_del_init(&ndlp->nlp_listp);
|
|
spin_unlock_irq(shost->host_lock);
|
|
lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state,
|
|
NLP_STE_UNUSED_NODE);
|
|
}
|
|
|
|
static void
|
|
lpfc_disable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
|
|
{
|
|
lpfc_cancel_retry_delay_tmo(vport, ndlp);
|
|
if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp))
|
|
lpfc_nlp_counters(vport, ndlp->nlp_state, -1);
|
|
lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state,
|
|
NLP_STE_UNUSED_NODE);
|
|
}
|
|
/**
|
|
* lpfc_initialize_node - Initialize all fields of node object
|
|
* @vport: Pointer to Virtual Port object.
|
|
* @ndlp: Pointer to FC node object.
|
|
* @did: FC_ID of the node.
|
|
*
|
|
* This function is always called when node object need to be initialized.
|
|
* It initializes all the fields of the node object. Although the reference
|
|
* to phba from @ndlp can be obtained indirectly through it's reference to
|
|
* @vport, a direct reference to phba is taken here by @ndlp. This is due
|
|
* to the life-span of the @ndlp might go beyond the existence of @vport as
|
|
* the final release of ndlp is determined by its reference count. And, the
|
|
* operation on @ndlp needs the reference to phba.
|
|
**/
|
|
static inline void
|
|
lpfc_initialize_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
|
|
uint32_t did)
|
|
{
|
|
INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp);
|
|
INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp);
|
|
init_timer(&ndlp->nlp_delayfunc);
|
|
ndlp->nlp_delayfunc.function = lpfc_els_retry_delay;
|
|
ndlp->nlp_delayfunc.data = (unsigned long)ndlp;
|
|
ndlp->nlp_DID = did;
|
|
ndlp->vport = vport;
|
|
ndlp->phba = vport->phba;
|
|
ndlp->nlp_sid = NLP_NO_SID;
|
|
kref_init(&ndlp->kref);
|
|
NLP_INT_NODE_ACT(ndlp);
|
|
atomic_set(&ndlp->cmd_pending, 0);
|
|
ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth;
|
|
}
|
|
|
|
struct lpfc_nodelist *
|
|
lpfc_enable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
|
|
int state)
|
|
{
|
|
struct lpfc_hba *phba = vport->phba;
|
|
uint32_t did;
|
|
unsigned long flags;
|
|
unsigned long *active_rrqs_xri_bitmap = NULL;
|
|
|
|
if (!ndlp)
|
|
return NULL;
|
|
|
|
spin_lock_irqsave(&phba->ndlp_lock, flags);
|
|
/* The ndlp should not be in memory free mode */
|
|
if (NLP_CHK_FREE_REQ(ndlp)) {
|
|
spin_unlock_irqrestore(&phba->ndlp_lock, flags);
|
|
lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
|
|
"0277 lpfc_enable_node: ndlp:x%p "
|
|
"usgmap:x%x refcnt:%d\n",
|
|
(void *)ndlp, ndlp->nlp_usg_map,
|
|
atomic_read(&ndlp->kref.refcount));
|
|
return NULL;
|
|
}
|
|
/* The ndlp should not already be in active mode */
|
|
if (NLP_CHK_NODE_ACT(ndlp)) {
|
|
spin_unlock_irqrestore(&phba->ndlp_lock, flags);
|
|
lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
|
|
"0278 lpfc_enable_node: ndlp:x%p "
|
|
"usgmap:x%x refcnt:%d\n",
|
|
(void *)ndlp, ndlp->nlp_usg_map,
|
|
atomic_read(&ndlp->kref.refcount));
|
|
return NULL;
|
|
}
|
|
|
|
/* Keep the original DID */
|
|
did = ndlp->nlp_DID;
|
|
if (phba->sli_rev == LPFC_SLI_REV4)
|
|
active_rrqs_xri_bitmap = ndlp->active_rrqs_xri_bitmap;
|
|
|
|
/* re-initialize ndlp except of ndlp linked list pointer */
|
|
memset((((char *)ndlp) + sizeof (struct list_head)), 0,
|
|
sizeof (struct lpfc_nodelist) - sizeof (struct list_head));
|
|
lpfc_initialize_node(vport, ndlp, did);
|
|
|
|
if (phba->sli_rev == LPFC_SLI_REV4)
|
|
ndlp->active_rrqs_xri_bitmap = active_rrqs_xri_bitmap;
|
|
|
|
spin_unlock_irqrestore(&phba->ndlp_lock, flags);
|
|
if (vport->phba->sli_rev == LPFC_SLI_REV4) {
|
|
ndlp->nlp_rpi = lpfc_sli4_alloc_rpi(vport->phba);
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
|
|
"0008 rpi:%x DID:%x flg:%x refcnt:%d "
|
|
"map:%x %p\n", ndlp->nlp_rpi, ndlp->nlp_DID,
|
|
ndlp->nlp_flag,
|
|
atomic_read(&ndlp->kref.refcount),
|
|
ndlp->nlp_usg_map, ndlp);
|
|
}
|
|
|
|
|
|
if (state != NLP_STE_UNUSED_NODE)
|
|
lpfc_nlp_set_state(vport, ndlp, state);
|
|
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
|
|
"node enable: did:x%x",
|
|
ndlp->nlp_DID, 0, 0);
|
|
return ndlp;
|
|
}
|
|
|
|
void
|
|
lpfc_drop_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
|
|
{
|
|
/*
|
|
* Use of lpfc_drop_node and UNUSED list: lpfc_drop_node should
|
|
* be used if we wish to issue the "last" lpfc_nlp_put() to remove
|
|
* the ndlp from the vport. The ndlp marked as UNUSED on the list
|
|
* until ALL other outstanding threads have completed. We check
|
|
* that the ndlp not already in the UNUSED state before we proceed.
|
|
*/
|
|
if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
|
|
return;
|
|
lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
|
|
if (vport->phba->sli_rev == LPFC_SLI_REV4) {
|
|
lpfc_cleanup_vports_rrqs(vport, ndlp);
|
|
lpfc_unreg_rpi(vport, ndlp);
|
|
}
|
|
|
|
lpfc_nlp_put(ndlp);
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Start / ReStart rescue timer for Discovery / RSCN handling
|
|
*/
|
|
void
|
|
lpfc_set_disctmo(struct lpfc_vport *vport)
|
|
{
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
struct lpfc_hba *phba = vport->phba;
|
|
uint32_t tmo;
|
|
|
|
if (vport->port_state == LPFC_LOCAL_CFG_LINK) {
|
|
/* For FAN, timeout should be greater than edtov */
|
|
tmo = (((phba->fc_edtov + 999) / 1000) + 1);
|
|
} else {
|
|
/* Normal discovery timeout should be > than ELS/CT timeout
|
|
* FC spec states we need 3 * ratov for CT requests
|
|
*/
|
|
tmo = ((phba->fc_ratov * 3) + 3);
|
|
}
|
|
|
|
|
|
if (!timer_pending(&vport->fc_disctmo)) {
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
|
|
"set disc timer: tmo:x%x state:x%x flg:x%x",
|
|
tmo, vport->port_state, vport->fc_flag);
|
|
}
|
|
|
|
mod_timer(&vport->fc_disctmo, jiffies + msecs_to_jiffies(1000 * tmo));
|
|
spin_lock_irq(shost->host_lock);
|
|
vport->fc_flag |= FC_DISC_TMO;
|
|
spin_unlock_irq(shost->host_lock);
|
|
|
|
/* Start Discovery Timer state <hba_state> */
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
|
|
"0247 Start Discovery Timer state x%x "
|
|
"Data: x%x x%lx x%x x%x\n",
|
|
vport->port_state, tmo,
|
|
(unsigned long)&vport->fc_disctmo, vport->fc_plogi_cnt,
|
|
vport->fc_adisc_cnt);
|
|
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Cancel rescue timer for Discovery / RSCN handling
|
|
*/
|
|
int
|
|
lpfc_can_disctmo(struct lpfc_vport *vport)
|
|
{
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
unsigned long iflags;
|
|
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
|
|
"can disc timer: state:x%x rtry:x%x flg:x%x",
|
|
vport->port_state, vport->fc_ns_retry, vport->fc_flag);
|
|
|
|
/* Turn off discovery timer if its running */
|
|
if (vport->fc_flag & FC_DISC_TMO) {
|
|
spin_lock_irqsave(shost->host_lock, iflags);
|
|
vport->fc_flag &= ~FC_DISC_TMO;
|
|
spin_unlock_irqrestore(shost->host_lock, iflags);
|
|
del_timer_sync(&vport->fc_disctmo);
|
|
spin_lock_irqsave(&vport->work_port_lock, iflags);
|
|
vport->work_port_events &= ~WORKER_DISC_TMO;
|
|
spin_unlock_irqrestore(&vport->work_port_lock, iflags);
|
|
}
|
|
|
|
/* Cancel Discovery Timer state <hba_state> */
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
|
|
"0248 Cancel Discovery Timer state x%x "
|
|
"Data: x%x x%x x%x\n",
|
|
vport->port_state, vport->fc_flag,
|
|
vport->fc_plogi_cnt, vport->fc_adisc_cnt);
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Check specified ring for outstanding IOCB on the SLI queue
|
|
* Return true if iocb matches the specified nport
|
|
*/
|
|
int
|
|
lpfc_check_sli_ndlp(struct lpfc_hba *phba,
|
|
struct lpfc_sli_ring *pring,
|
|
struct lpfc_iocbq *iocb,
|
|
struct lpfc_nodelist *ndlp)
|
|
{
|
|
struct lpfc_sli *psli = &phba->sli;
|
|
IOCB_t *icmd = &iocb->iocb;
|
|
struct lpfc_vport *vport = ndlp->vport;
|
|
|
|
if (iocb->vport != vport)
|
|
return 0;
|
|
|
|
if (pring->ringno == LPFC_ELS_RING) {
|
|
switch (icmd->ulpCommand) {
|
|
case CMD_GEN_REQUEST64_CR:
|
|
if (iocb->context_un.ndlp == ndlp)
|
|
return 1;
|
|
case CMD_ELS_REQUEST64_CR:
|
|
if (icmd->un.elsreq64.remoteID == ndlp->nlp_DID)
|
|
return 1;
|
|
case CMD_XMIT_ELS_RSP64_CX:
|
|
if (iocb->context1 == (uint8_t *) ndlp)
|
|
return 1;
|
|
}
|
|
} else if (pring->ringno == psli->extra_ring) {
|
|
|
|
} else if (pring->ringno == psli->fcp_ring) {
|
|
/* Skip match check if waiting to relogin to FCP target */
|
|
if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
|
|
(ndlp->nlp_flag & NLP_DELAY_TMO)) {
|
|
return 0;
|
|
}
|
|
if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) {
|
|
return 1;
|
|
}
|
|
} else if (pring->ringno == psli->next_ring) {
|
|
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Free resources / clean up outstanding I/Os
|
|
* associated with nlp_rpi in the LPFC_NODELIST entry.
|
|
*/
|
|
static int
|
|
lpfc_no_rpi(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
|
|
{
|
|
LIST_HEAD(completions);
|
|
struct lpfc_sli *psli;
|
|
struct lpfc_sli_ring *pring;
|
|
struct lpfc_iocbq *iocb, *next_iocb;
|
|
uint32_t i;
|
|
|
|
lpfc_fabric_abort_nport(ndlp);
|
|
|
|
/*
|
|
* Everything that matches on txcmplq will be returned
|
|
* by firmware with a no rpi error.
|
|
*/
|
|
psli = &phba->sli;
|
|
if (ndlp->nlp_flag & NLP_RPI_REGISTERED) {
|
|
/* Now process each ring */
|
|
for (i = 0; i < psli->num_rings; i++) {
|
|
pring = &psli->ring[i];
|
|
|
|
spin_lock_irq(&phba->hbalock);
|
|
list_for_each_entry_safe(iocb, next_iocb, &pring->txq,
|
|
list) {
|
|
/*
|
|
* Check to see if iocb matches the nport we are
|
|
* looking for
|
|
*/
|
|
if ((lpfc_check_sli_ndlp(phba, pring, iocb,
|
|
ndlp))) {
|
|
/* It matches, so deque and call compl
|
|
with an error */
|
|
list_move_tail(&iocb->list,
|
|
&completions);
|
|
}
|
|
}
|
|
spin_unlock_irq(&phba->hbalock);
|
|
}
|
|
}
|
|
|
|
/* Cancel all the IOCBs from the completions list */
|
|
lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
|
|
IOERR_SLI_ABORTED);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_nlp_logo_unreg - Unreg mailbox completion handler before LOGO
|
|
* @phba: Pointer to HBA context object.
|
|
* @pmb: Pointer to mailbox object.
|
|
*
|
|
* This function will issue an ELS LOGO command after completing
|
|
* the UNREG_RPI.
|
|
**/
|
|
static void
|
|
lpfc_nlp_logo_unreg(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
|
|
{
|
|
struct lpfc_vport *vport = pmb->vport;
|
|
struct lpfc_nodelist *ndlp;
|
|
|
|
ndlp = (struct lpfc_nodelist *)(pmb->context1);
|
|
if (!ndlp)
|
|
return;
|
|
lpfc_issue_els_logo(vport, ndlp, 0);
|
|
mempool_free(pmb, phba->mbox_mem_pool);
|
|
}
|
|
|
|
/*
|
|
* Free rpi associated with LPFC_NODELIST entry.
|
|
* This routine is called from lpfc_freenode(), when we are removing
|
|
* a LPFC_NODELIST entry. It is also called if the driver initiates a
|
|
* LOGO that completes successfully, and we are waiting to PLOGI back
|
|
* to the remote NPort. In addition, it is called after we receive
|
|
* and unsolicated ELS cmd, send back a rsp, the rsp completes and
|
|
* we are waiting to PLOGI back to the remote NPort.
|
|
*/
|
|
int
|
|
lpfc_unreg_rpi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
|
|
{
|
|
struct lpfc_hba *phba = vport->phba;
|
|
LPFC_MBOXQ_t *mbox;
|
|
int rc, acc_plogi = 1;
|
|
uint16_t rpi;
|
|
|
|
if (ndlp->nlp_flag & NLP_RPI_REGISTERED ||
|
|
ndlp->nlp_flag & NLP_REG_LOGIN_SEND) {
|
|
if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND)
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
|
|
"3366 RPI x%x needs to be "
|
|
"unregistered nlp_flag x%x "
|
|
"did x%x\n",
|
|
ndlp->nlp_rpi, ndlp->nlp_flag,
|
|
ndlp->nlp_DID);
|
|
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (mbox) {
|
|
/* SLI4 ports require the physical rpi value. */
|
|
rpi = ndlp->nlp_rpi;
|
|
if (phba->sli_rev == LPFC_SLI_REV4)
|
|
rpi = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];
|
|
|
|
lpfc_unreg_login(phba, vport->vpi, rpi, mbox);
|
|
mbox->vport = vport;
|
|
if (ndlp->nlp_flag & NLP_ISSUE_LOGO) {
|
|
mbox->context1 = ndlp;
|
|
mbox->mbox_cmpl = lpfc_nlp_logo_unreg;
|
|
} else {
|
|
if (phba->sli_rev == LPFC_SLI_REV4 &&
|
|
(!(vport->load_flag & FC_UNLOADING)) &&
|
|
(bf_get(lpfc_sli_intf_if_type,
|
|
&phba->sli4_hba.sli_intf) ==
|
|
LPFC_SLI_INTF_IF_TYPE_2)) {
|
|
mbox->context1 = lpfc_nlp_get(ndlp);
|
|
mbox->mbox_cmpl =
|
|
lpfc_sli4_unreg_rpi_cmpl_clr;
|
|
/*
|
|
* accept PLOGIs after unreg_rpi_cmpl
|
|
*/
|
|
acc_plogi = 0;
|
|
} else
|
|
mbox->mbox_cmpl =
|
|
lpfc_sli_def_mbox_cmpl;
|
|
}
|
|
|
|
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
|
|
if (rc == MBX_NOT_FINISHED) {
|
|
mempool_free(mbox, phba->mbox_mem_pool);
|
|
acc_plogi = 1;
|
|
}
|
|
}
|
|
lpfc_no_rpi(phba, ndlp);
|
|
|
|
if (phba->sli_rev != LPFC_SLI_REV4)
|
|
ndlp->nlp_rpi = 0;
|
|
ndlp->nlp_flag &= ~NLP_RPI_REGISTERED;
|
|
ndlp->nlp_flag &= ~NLP_NPR_ADISC;
|
|
if (acc_plogi)
|
|
ndlp->nlp_flag &= ~NLP_LOGO_ACC;
|
|
return 1;
|
|
}
|
|
ndlp->nlp_flag &= ~NLP_LOGO_ACC;
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_unreg_hba_rpis - Unregister rpis registered to the hba.
|
|
* @phba: pointer to lpfc hba data structure.
|
|
*
|
|
* This routine is invoked to unregister all the currently registered RPIs
|
|
* to the HBA.
|
|
**/
|
|
void
|
|
lpfc_unreg_hba_rpis(struct lpfc_hba *phba)
|
|
{
|
|
struct lpfc_vport **vports;
|
|
struct lpfc_nodelist *ndlp;
|
|
struct Scsi_Host *shost;
|
|
int i;
|
|
|
|
vports = lpfc_create_vport_work_array(phba);
|
|
if (!vports) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
|
|
"2884 Vport array allocation failed \n");
|
|
return;
|
|
}
|
|
for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
|
|
shost = lpfc_shost_from_vport(vports[i]);
|
|
spin_lock_irq(shost->host_lock);
|
|
list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) {
|
|
if (ndlp->nlp_flag & NLP_RPI_REGISTERED) {
|
|
/* The mempool_alloc might sleep */
|
|
spin_unlock_irq(shost->host_lock);
|
|
lpfc_unreg_rpi(vports[i], ndlp);
|
|
spin_lock_irq(shost->host_lock);
|
|
}
|
|
}
|
|
spin_unlock_irq(shost->host_lock);
|
|
}
|
|
lpfc_destroy_vport_work_array(phba, vports);
|
|
}
|
|
|
|
void
|
|
lpfc_unreg_all_rpis(struct lpfc_vport *vport)
|
|
{
|
|
struct lpfc_hba *phba = vport->phba;
|
|
LPFC_MBOXQ_t *mbox;
|
|
int rc;
|
|
|
|
if (phba->sli_rev == LPFC_SLI_REV4) {
|
|
lpfc_sli4_unreg_all_rpis(vport);
|
|
return;
|
|
}
|
|
|
|
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (mbox) {
|
|
lpfc_unreg_login(phba, vport->vpi, LPFC_UNREG_ALL_RPIS_VPORT,
|
|
mbox);
|
|
mbox->vport = vport;
|
|
mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
|
|
mbox->context1 = NULL;
|
|
rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
|
|
if (rc != MBX_TIMEOUT)
|
|
mempool_free(mbox, phba->mbox_mem_pool);
|
|
|
|
if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED))
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
|
|
"1836 Could not issue "
|
|
"unreg_login(all_rpis) status %d\n", rc);
|
|
}
|
|
}
|
|
|
|
void
|
|
lpfc_unreg_default_rpis(struct lpfc_vport *vport)
|
|
{
|
|
struct lpfc_hba *phba = vport->phba;
|
|
LPFC_MBOXQ_t *mbox;
|
|
int rc;
|
|
|
|
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (mbox) {
|
|
lpfc_unreg_did(phba, vport->vpi, LPFC_UNREG_ALL_DFLT_RPIS,
|
|
mbox);
|
|
mbox->vport = vport;
|
|
mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
|
|
mbox->context1 = NULL;
|
|
rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
|
|
if (rc != MBX_TIMEOUT)
|
|
mempool_free(mbox, phba->mbox_mem_pool);
|
|
|
|
if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED))
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
|
|
"1815 Could not issue "
|
|
"unreg_did (default rpis) status %d\n",
|
|
rc);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Free resources associated with LPFC_NODELIST entry
|
|
* so it can be freed.
|
|
*/
|
|
static int
|
|
lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
|
|
{
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
struct lpfc_hba *phba = vport->phba;
|
|
LPFC_MBOXQ_t *mb, *nextmb;
|
|
struct lpfc_dmabuf *mp;
|
|
|
|
/* Cleanup node for NPort <nlp_DID> */
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
|
|
"0900 Cleanup node for NPort x%x "
|
|
"Data: x%x x%x x%x\n",
|
|
ndlp->nlp_DID, ndlp->nlp_flag,
|
|
ndlp->nlp_state, ndlp->nlp_rpi);
|
|
if (NLP_CHK_FREE_REQ(ndlp)) {
|
|
lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
|
|
"0280 lpfc_cleanup_node: ndlp:x%p "
|
|
"usgmap:x%x refcnt:%d\n",
|
|
(void *)ndlp, ndlp->nlp_usg_map,
|
|
atomic_read(&ndlp->kref.refcount));
|
|
lpfc_dequeue_node(vport, ndlp);
|
|
} else {
|
|
lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
|
|
"0281 lpfc_cleanup_node: ndlp:x%p "
|
|
"usgmap:x%x refcnt:%d\n",
|
|
(void *)ndlp, ndlp->nlp_usg_map,
|
|
atomic_read(&ndlp->kref.refcount));
|
|
lpfc_disable_node(vport, ndlp);
|
|
}
|
|
|
|
|
|
/* Don't need to clean up REG_LOGIN64 cmds for Default RPI cleanup */
|
|
|
|
/* cleanup any ndlp on mbox q waiting for reglogin cmpl */
|
|
if ((mb = phba->sli.mbox_active)) {
|
|
if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
|
|
!(mb->mbox_flag & LPFC_MBX_IMED_UNREG) &&
|
|
(ndlp == (struct lpfc_nodelist *) mb->context2)) {
|
|
mb->context2 = NULL;
|
|
mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
|
|
}
|
|
}
|
|
|
|
spin_lock_irq(&phba->hbalock);
|
|
/* Cleanup REG_LOGIN completions which are not yet processed */
|
|
list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) {
|
|
if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) ||
|
|
(mb->mbox_flag & LPFC_MBX_IMED_UNREG) ||
|
|
(ndlp != (struct lpfc_nodelist *) mb->context2))
|
|
continue;
|
|
|
|
mb->context2 = NULL;
|
|
mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
|
|
}
|
|
|
|
list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
|
|
if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
|
|
!(mb->mbox_flag & LPFC_MBX_IMED_UNREG) &&
|
|
(ndlp == (struct lpfc_nodelist *) mb->context2)) {
|
|
mp = (struct lpfc_dmabuf *) (mb->context1);
|
|
if (mp) {
|
|
__lpfc_mbuf_free(phba, mp->virt, mp->phys);
|
|
kfree(mp);
|
|
}
|
|
list_del(&mb->list);
|
|
mempool_free(mb, phba->mbox_mem_pool);
|
|
/* We shall not invoke the lpfc_nlp_put to decrement
|
|
* the ndlp reference count as we are in the process
|
|
* of lpfc_nlp_release.
|
|
*/
|
|
}
|
|
}
|
|
spin_unlock_irq(&phba->hbalock);
|
|
|
|
lpfc_els_abort(phba, ndlp);
|
|
|
|
spin_lock_irq(shost->host_lock);
|
|
ndlp->nlp_flag &= ~NLP_DELAY_TMO;
|
|
spin_unlock_irq(shost->host_lock);
|
|
|
|
ndlp->nlp_last_elscmd = 0;
|
|
del_timer_sync(&ndlp->nlp_delayfunc);
|
|
|
|
list_del_init(&ndlp->els_retry_evt.evt_listp);
|
|
list_del_init(&ndlp->dev_loss_evt.evt_listp);
|
|
lpfc_cleanup_vports_rrqs(vport, ndlp);
|
|
lpfc_unreg_rpi(vport, ndlp);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Check to see if we can free the nlp back to the freelist.
|
|
* If we are in the middle of using the nlp in the discovery state
|
|
* machine, defer the free till we reach the end of the state machine.
|
|
*/
|
|
static void
|
|
lpfc_nlp_remove(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
|
|
{
|
|
struct lpfc_hba *phba = vport->phba;
|
|
struct lpfc_rport_data *rdata;
|
|
struct fc_rport *rport;
|
|
LPFC_MBOXQ_t *mbox;
|
|
int rc;
|
|
|
|
lpfc_cancel_retry_delay_tmo(vport, ndlp);
|
|
if ((ndlp->nlp_flag & NLP_DEFER_RM) &&
|
|
!(ndlp->nlp_flag & NLP_REG_LOGIN_SEND) &&
|
|
!(ndlp->nlp_flag & NLP_RPI_REGISTERED)) {
|
|
/* For this case we need to cleanup the default rpi
|
|
* allocated by the firmware.
|
|
*/
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
|
|
"0005 rpi:%x DID:%x flg:%x %d map:%x %p\n",
|
|
ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag,
|
|
atomic_read(&ndlp->kref.refcount),
|
|
ndlp->nlp_usg_map, ndlp);
|
|
if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))
|
|
!= NULL) {
|
|
rc = lpfc_reg_rpi(phba, vport->vpi, ndlp->nlp_DID,
|
|
(uint8_t *) &vport->fc_sparam, mbox, ndlp->nlp_rpi);
|
|
if (rc) {
|
|
mempool_free(mbox, phba->mbox_mem_pool);
|
|
}
|
|
else {
|
|
mbox->mbox_flag |= LPFC_MBX_IMED_UNREG;
|
|
mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
|
|
mbox->vport = vport;
|
|
mbox->context2 = ndlp;
|
|
rc =lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
|
|
if (rc == MBX_NOT_FINISHED) {
|
|
mempool_free(mbox, phba->mbox_mem_pool);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
lpfc_cleanup_node(vport, ndlp);
|
|
|
|
/*
|
|
* ndlp->rport must be set to NULL before it reaches here
|
|
* i.e. break rport/node link before doing lpfc_nlp_put for
|
|
* registered rport and then drop the reference of rport.
|
|
*/
|
|
if (ndlp->rport) {
|
|
/*
|
|
* extra lpfc_nlp_put dropped the reference of ndlp
|
|
* for registered rport so need to cleanup rport
|
|
*/
|
|
lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
|
|
"0940 removed node x%p DID x%x "
|
|
" rport not null %p\n",
|
|
ndlp, ndlp->nlp_DID, ndlp->rport);
|
|
rport = ndlp->rport;
|
|
rdata = rport->dd_data;
|
|
rdata->pnode = NULL;
|
|
ndlp->rport = NULL;
|
|
put_device(&rport->dev);
|
|
}
|
|
}
|
|
|
|
static int
|
|
lpfc_matchdid(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
|
|
uint32_t did)
|
|
{
|
|
D_ID mydid, ndlpdid, matchdid;
|
|
|
|
if (did == Bcast_DID)
|
|
return 0;
|
|
|
|
/* First check for Direct match */
|
|
if (ndlp->nlp_DID == did)
|
|
return 1;
|
|
|
|
/* Next check for area/domain identically equals 0 match */
|
|
mydid.un.word = vport->fc_myDID;
|
|
if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) {
|
|
return 0;
|
|
}
|
|
|
|
matchdid.un.word = did;
|
|
ndlpdid.un.word = ndlp->nlp_DID;
|
|
if (matchdid.un.b.id == ndlpdid.un.b.id) {
|
|
if ((mydid.un.b.domain == matchdid.un.b.domain) &&
|
|
(mydid.un.b.area == matchdid.un.b.area)) {
|
|
/* This code is supposed to match the ID
|
|
* for a private loop device that is
|
|
* connect to fl_port. But we need to
|
|
* check that the port did not just go
|
|
* from pt2pt to fabric or we could end
|
|
* up matching ndlp->nlp_DID 000001 to
|
|
* fabric DID 0x20101
|
|
*/
|
|
if ((ndlpdid.un.b.domain == 0) &&
|
|
(ndlpdid.un.b.area == 0)) {
|
|
if (ndlpdid.un.b.id &&
|
|
vport->phba->fc_topology ==
|
|
LPFC_TOPOLOGY_LOOP)
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
matchdid.un.word = ndlp->nlp_DID;
|
|
if ((mydid.un.b.domain == ndlpdid.un.b.domain) &&
|
|
(mydid.un.b.area == ndlpdid.un.b.area)) {
|
|
if ((matchdid.un.b.domain == 0) &&
|
|
(matchdid.un.b.area == 0)) {
|
|
if (matchdid.un.b.id)
|
|
return 1;
|
|
}
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* Search for a nodelist entry */
|
|
static struct lpfc_nodelist *
|
|
__lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did)
|
|
{
|
|
struct lpfc_nodelist *ndlp;
|
|
uint32_t data1;
|
|
|
|
list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
|
|
if (lpfc_matchdid(vport, ndlp, did)) {
|
|
data1 = (((uint32_t) ndlp->nlp_state << 24) |
|
|
((uint32_t) ndlp->nlp_xri << 16) |
|
|
((uint32_t) ndlp->nlp_type << 8) |
|
|
((uint32_t) ndlp->nlp_rpi & 0xff));
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
|
|
"0929 FIND node DID "
|
|
"Data: x%p x%x x%x x%x %p\n",
|
|
ndlp, ndlp->nlp_DID,
|
|
ndlp->nlp_flag, data1,
|
|
ndlp->active_rrqs_xri_bitmap);
|
|
return ndlp;
|
|
}
|
|
}
|
|
|
|
/* FIND node did <did> NOT FOUND */
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
|
|
"0932 FIND node did x%x NOT FOUND.\n", did);
|
|
return NULL;
|
|
}
|
|
|
|
struct lpfc_nodelist *
|
|
lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did)
|
|
{
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
struct lpfc_nodelist *ndlp;
|
|
unsigned long iflags;
|
|
|
|
spin_lock_irqsave(shost->host_lock, iflags);
|
|
ndlp = __lpfc_findnode_did(vport, did);
|
|
spin_unlock_irqrestore(shost->host_lock, iflags);
|
|
return ndlp;
|
|
}
|
|
|
|
struct lpfc_nodelist *
|
|
lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did)
|
|
{
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
struct lpfc_nodelist *ndlp;
|
|
|
|
ndlp = lpfc_findnode_did(vport, did);
|
|
if (!ndlp) {
|
|
if ((vport->fc_flag & FC_RSCN_MODE) != 0 &&
|
|
lpfc_rscn_payload_check(vport, did) == 0)
|
|
return NULL;
|
|
ndlp = (struct lpfc_nodelist *)
|
|
mempool_alloc(vport->phba->nlp_mem_pool, GFP_KERNEL);
|
|
if (!ndlp)
|
|
return NULL;
|
|
lpfc_nlp_init(vport, ndlp, did);
|
|
lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
|
|
spin_lock_irq(shost->host_lock);
|
|
ndlp->nlp_flag |= NLP_NPR_2B_DISC;
|
|
spin_unlock_irq(shost->host_lock);
|
|
return ndlp;
|
|
} else if (!NLP_CHK_NODE_ACT(ndlp)) {
|
|
ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_NPR_NODE);
|
|
if (!ndlp)
|
|
return NULL;
|
|
spin_lock_irq(shost->host_lock);
|
|
ndlp->nlp_flag |= NLP_NPR_2B_DISC;
|
|
spin_unlock_irq(shost->host_lock);
|
|
return ndlp;
|
|
}
|
|
|
|
if ((vport->fc_flag & FC_RSCN_MODE) &&
|
|
!(vport->fc_flag & FC_NDISC_ACTIVE)) {
|
|
if (lpfc_rscn_payload_check(vport, did)) {
|
|
/* If we've already received a PLOGI from this NPort
|
|
* we don't need to try to discover it again.
|
|
*/
|
|
if (ndlp->nlp_flag & NLP_RCV_PLOGI)
|
|
return NULL;
|
|
|
|
/* Since this node is marked for discovery,
|
|
* delay timeout is not needed.
|
|
*/
|
|
lpfc_cancel_retry_delay_tmo(vport, ndlp);
|
|
spin_lock_irq(shost->host_lock);
|
|
ndlp->nlp_flag |= NLP_NPR_2B_DISC;
|
|
spin_unlock_irq(shost->host_lock);
|
|
} else
|
|
ndlp = NULL;
|
|
} else {
|
|
/* If we've already received a PLOGI from this NPort,
|
|
* or we are already in the process of discovery on it,
|
|
* we don't need to try to discover it again.
|
|
*/
|
|
if (ndlp->nlp_state == NLP_STE_ADISC_ISSUE ||
|
|
ndlp->nlp_state == NLP_STE_PLOGI_ISSUE ||
|
|
ndlp->nlp_flag & NLP_RCV_PLOGI)
|
|
return NULL;
|
|
lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
|
|
spin_lock_irq(shost->host_lock);
|
|
ndlp->nlp_flag |= NLP_NPR_2B_DISC;
|
|
spin_unlock_irq(shost->host_lock);
|
|
}
|
|
return ndlp;
|
|
}
|
|
|
|
/* Build a list of nodes to discover based on the loopmap */
|
|
void
|
|
lpfc_disc_list_loopmap(struct lpfc_vport *vport)
|
|
{
|
|
struct lpfc_hba *phba = vport->phba;
|
|
int j;
|
|
uint32_t alpa, index;
|
|
|
|
if (!lpfc_is_link_up(phba))
|
|
return;
|
|
|
|
if (phba->fc_topology != LPFC_TOPOLOGY_LOOP)
|
|
return;
|
|
|
|
/* Check for loop map present or not */
|
|
if (phba->alpa_map[0]) {
|
|
for (j = 1; j <= phba->alpa_map[0]; j++) {
|
|
alpa = phba->alpa_map[j];
|
|
if (((vport->fc_myDID & 0xff) == alpa) || (alpa == 0))
|
|
continue;
|
|
lpfc_setup_disc_node(vport, alpa);
|
|
}
|
|
} else {
|
|
/* No alpamap, so try all alpa's */
|
|
for (j = 0; j < FC_MAXLOOP; j++) {
|
|
/* If cfg_scan_down is set, start from highest
|
|
* ALPA (0xef) to lowest (0x1).
|
|
*/
|
|
if (vport->cfg_scan_down)
|
|
index = j;
|
|
else
|
|
index = FC_MAXLOOP - j - 1;
|
|
alpa = lpfcAlpaArray[index];
|
|
if ((vport->fc_myDID & 0xff) == alpa)
|
|
continue;
|
|
lpfc_setup_disc_node(vport, alpa);
|
|
}
|
|
}
|
|
return;
|
|
}
|
|
|
|
void
|
|
lpfc_issue_clear_la(struct lpfc_hba *phba, struct lpfc_vport *vport)
|
|
{
|
|
LPFC_MBOXQ_t *mbox;
|
|
struct lpfc_sli *psli = &phba->sli;
|
|
struct lpfc_sli_ring *extra_ring = &psli->ring[psli->extra_ring];
|
|
struct lpfc_sli_ring *fcp_ring = &psli->ring[psli->fcp_ring];
|
|
struct lpfc_sli_ring *next_ring = &psli->ring[psli->next_ring];
|
|
int rc;
|
|
|
|
/*
|
|
* if it's not a physical port or if we already send
|
|
* clear_la then don't send it.
|
|
*/
|
|
if ((phba->link_state >= LPFC_CLEAR_LA) ||
|
|
(vport->port_type != LPFC_PHYSICAL_PORT) ||
|
|
(phba->sli_rev == LPFC_SLI_REV4))
|
|
return;
|
|
|
|
/* Link up discovery */
|
|
if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) != NULL) {
|
|
phba->link_state = LPFC_CLEAR_LA;
|
|
lpfc_clear_la(phba, mbox);
|
|
mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
|
|
mbox->vport = vport;
|
|
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
|
|
if (rc == MBX_NOT_FINISHED) {
|
|
mempool_free(mbox, phba->mbox_mem_pool);
|
|
lpfc_disc_flush_list(vport);
|
|
extra_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
|
|
fcp_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
|
|
next_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
|
|
phba->link_state = LPFC_HBA_ERROR;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Reg_vpi to tell firmware to resume normal operations */
|
|
void
|
|
lpfc_issue_reg_vpi(struct lpfc_hba *phba, struct lpfc_vport *vport)
|
|
{
|
|
LPFC_MBOXQ_t *regvpimbox;
|
|
|
|
regvpimbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (regvpimbox) {
|
|
lpfc_reg_vpi(vport, regvpimbox);
|
|
regvpimbox->mbox_cmpl = lpfc_mbx_cmpl_reg_vpi;
|
|
regvpimbox->vport = vport;
|
|
if (lpfc_sli_issue_mbox(phba, regvpimbox, MBX_NOWAIT)
|
|
== MBX_NOT_FINISHED) {
|
|
mempool_free(regvpimbox, phba->mbox_mem_pool);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Start Link up / RSCN discovery on NPR nodes */
|
|
void
|
|
lpfc_disc_start(struct lpfc_vport *vport)
|
|
{
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
struct lpfc_hba *phba = vport->phba;
|
|
uint32_t num_sent;
|
|
uint32_t clear_la_pending;
|
|
|
|
if (!lpfc_is_link_up(phba)) {
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
|
|
"3315 Link is not up %x\n",
|
|
phba->link_state);
|
|
return;
|
|
}
|
|
|
|
if (phba->link_state == LPFC_CLEAR_LA)
|
|
clear_la_pending = 1;
|
|
else
|
|
clear_la_pending = 0;
|
|
|
|
if (vport->port_state < LPFC_VPORT_READY)
|
|
vport->port_state = LPFC_DISC_AUTH;
|
|
|
|
lpfc_set_disctmo(vport);
|
|
|
|
vport->fc_prevDID = vport->fc_myDID;
|
|
vport->num_disc_nodes = 0;
|
|
|
|
/* Start Discovery state <hba_state> */
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
|
|
"0202 Start Discovery hba state x%x "
|
|
"Data: x%x x%x x%x\n",
|
|
vport->port_state, vport->fc_flag, vport->fc_plogi_cnt,
|
|
vport->fc_adisc_cnt);
|
|
|
|
/* First do ADISCs - if any */
|
|
num_sent = lpfc_els_disc_adisc(vport);
|
|
|
|
if (num_sent)
|
|
return;
|
|
|
|
/* Register the VPI for SLI3, NPIV only. */
|
|
if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
|
|
!(vport->fc_flag & FC_PT2PT) &&
|
|
!(vport->fc_flag & FC_RSCN_MODE) &&
|
|
(phba->sli_rev < LPFC_SLI_REV4)) {
|
|
lpfc_issue_clear_la(phba, vport);
|
|
lpfc_issue_reg_vpi(phba, vport);
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* For SLI2, we need to set port_state to READY and continue
|
|
* discovery.
|
|
*/
|
|
if (vport->port_state < LPFC_VPORT_READY && !clear_la_pending) {
|
|
/* If we get here, there is nothing to ADISC */
|
|
lpfc_issue_clear_la(phba, vport);
|
|
|
|
if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) {
|
|
vport->num_disc_nodes = 0;
|
|
/* go thru NPR nodes and issue ELS PLOGIs */
|
|
if (vport->fc_npr_cnt)
|
|
lpfc_els_disc_plogi(vport);
|
|
|
|
if (!vport->num_disc_nodes) {
|
|
spin_lock_irq(shost->host_lock);
|
|
vport->fc_flag &= ~FC_NDISC_ACTIVE;
|
|
spin_unlock_irq(shost->host_lock);
|
|
lpfc_can_disctmo(vport);
|
|
}
|
|
}
|
|
vport->port_state = LPFC_VPORT_READY;
|
|
} else {
|
|
/* Next do PLOGIs - if any */
|
|
num_sent = lpfc_els_disc_plogi(vport);
|
|
|
|
if (num_sent)
|
|
return;
|
|
|
|
if (vport->fc_flag & FC_RSCN_MODE) {
|
|
/* Check to see if more RSCNs came in while we
|
|
* were processing this one.
|
|
*/
|
|
if ((vport->fc_rscn_id_cnt == 0) &&
|
|
(!(vport->fc_flag & FC_RSCN_DISCOVERY))) {
|
|
spin_lock_irq(shost->host_lock);
|
|
vport->fc_flag &= ~FC_RSCN_MODE;
|
|
spin_unlock_irq(shost->host_lock);
|
|
lpfc_can_disctmo(vport);
|
|
} else
|
|
lpfc_els_handle_rscn(vport);
|
|
}
|
|
}
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Ignore completion for all IOCBs on tx and txcmpl queue for ELS
|
|
* ring the match the sppecified nodelist.
|
|
*/
|
|
static void
|
|
lpfc_free_tx(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
|
|
{
|
|
LIST_HEAD(completions);
|
|
struct lpfc_sli *psli;
|
|
IOCB_t *icmd;
|
|
struct lpfc_iocbq *iocb, *next_iocb;
|
|
struct lpfc_sli_ring *pring;
|
|
|
|
psli = &phba->sli;
|
|
pring = &psli->ring[LPFC_ELS_RING];
|
|
|
|
/* Error matching iocb on txq or txcmplq
|
|
* First check the txq.
|
|
*/
|
|
spin_lock_irq(&phba->hbalock);
|
|
list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
|
|
if (iocb->context1 != ndlp) {
|
|
continue;
|
|
}
|
|
icmd = &iocb->iocb;
|
|
if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
|
|
(icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
|
|
|
|
list_move_tail(&iocb->list, &completions);
|
|
}
|
|
}
|
|
|
|
/* Next check the txcmplq */
|
|
list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
|
|
if (iocb->context1 != ndlp) {
|
|
continue;
|
|
}
|
|
icmd = &iocb->iocb;
|
|
if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR ||
|
|
icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX) {
|
|
lpfc_sli_issue_abort_iotag(phba, pring, iocb);
|
|
}
|
|
}
|
|
spin_unlock_irq(&phba->hbalock);
|
|
|
|
/* Cancel all the IOCBs from the completions list */
|
|
lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
|
|
IOERR_SLI_ABORTED);
|
|
}
|
|
|
|
static void
|
|
lpfc_disc_flush_list(struct lpfc_vport *vport)
|
|
{
|
|
struct lpfc_nodelist *ndlp, *next_ndlp;
|
|
struct lpfc_hba *phba = vport->phba;
|
|
|
|
if (vport->fc_plogi_cnt || vport->fc_adisc_cnt) {
|
|
list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
|
|
nlp_listp) {
|
|
if (!NLP_CHK_NODE_ACT(ndlp))
|
|
continue;
|
|
if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE ||
|
|
ndlp->nlp_state == NLP_STE_ADISC_ISSUE) {
|
|
lpfc_free_tx(phba, ndlp);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
lpfc_cleanup_discovery_resources(struct lpfc_vport *vport)
|
|
{
|
|
lpfc_els_flush_rscn(vport);
|
|
lpfc_els_flush_cmd(vport);
|
|
lpfc_disc_flush_list(vport);
|
|
}
|
|
|
|
/*****************************************************************************/
|
|
/*
|
|
* NAME: lpfc_disc_timeout
|
|
*
|
|
* FUNCTION: Fibre Channel driver discovery timeout routine.
|
|
*
|
|
* EXECUTION ENVIRONMENT: interrupt only
|
|
*
|
|
* CALLED FROM:
|
|
* Timer function
|
|
*
|
|
* RETURNS:
|
|
* none
|
|
*/
|
|
/*****************************************************************************/
|
|
void
|
|
lpfc_disc_timeout(unsigned long ptr)
|
|
{
|
|
struct lpfc_vport *vport = (struct lpfc_vport *) ptr;
|
|
struct lpfc_hba *phba = vport->phba;
|
|
uint32_t tmo_posted;
|
|
unsigned long flags = 0;
|
|
|
|
if (unlikely(!phba))
|
|
return;
|
|
|
|
spin_lock_irqsave(&vport->work_port_lock, flags);
|
|
tmo_posted = vport->work_port_events & WORKER_DISC_TMO;
|
|
if (!tmo_posted)
|
|
vport->work_port_events |= WORKER_DISC_TMO;
|
|
spin_unlock_irqrestore(&vport->work_port_lock, flags);
|
|
|
|
if (!tmo_posted)
|
|
lpfc_worker_wake_up(phba);
|
|
return;
|
|
}
|
|
|
|
static void
|
|
lpfc_disc_timeout_handler(struct lpfc_vport *vport)
|
|
{
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
struct lpfc_hba *phba = vport->phba;
|
|
struct lpfc_sli *psli = &phba->sli;
|
|
struct lpfc_nodelist *ndlp, *next_ndlp;
|
|
LPFC_MBOXQ_t *initlinkmbox;
|
|
int rc, clrlaerr = 0;
|
|
|
|
if (!(vport->fc_flag & FC_DISC_TMO))
|
|
return;
|
|
|
|
spin_lock_irq(shost->host_lock);
|
|
vport->fc_flag &= ~FC_DISC_TMO;
|
|
spin_unlock_irq(shost->host_lock);
|
|
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
|
|
"disc timeout: state:x%x rtry:x%x flg:x%x",
|
|
vport->port_state, vport->fc_ns_retry, vport->fc_flag);
|
|
|
|
switch (vport->port_state) {
|
|
|
|
case LPFC_LOCAL_CFG_LINK:
|
|
/* port_state is identically LPFC_LOCAL_CFG_LINK while waiting for
|
|
* FAN
|
|
*/
|
|
/* FAN timeout */
|
|
lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY,
|
|
"0221 FAN timeout\n");
|
|
/* Start discovery by sending FLOGI, clean up old rpis */
|
|
list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
|
|
nlp_listp) {
|
|
if (!NLP_CHK_NODE_ACT(ndlp))
|
|
continue;
|
|
if (ndlp->nlp_state != NLP_STE_NPR_NODE)
|
|
continue;
|
|
if (ndlp->nlp_type & NLP_FABRIC) {
|
|
/* Clean up the ndlp on Fabric connections */
|
|
lpfc_drop_node(vport, ndlp);
|
|
|
|
} else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
|
|
/* Fail outstanding IO now since device
|
|
* is marked for PLOGI.
|
|
*/
|
|
lpfc_unreg_rpi(vport, ndlp);
|
|
}
|
|
}
|
|
if (vport->port_state != LPFC_FLOGI) {
|
|
if (phba->sli_rev <= LPFC_SLI_REV3)
|
|
lpfc_initial_flogi(vport);
|
|
else
|
|
lpfc_issue_init_vfi(vport);
|
|
return;
|
|
}
|
|
break;
|
|
|
|
case LPFC_FDISC:
|
|
case LPFC_FLOGI:
|
|
/* port_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */
|
|
/* Initial FLOGI timeout */
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
|
|
"0222 Initial %s timeout\n",
|
|
vport->vpi ? "FDISC" : "FLOGI");
|
|
|
|
/* Assume no Fabric and go on with discovery.
|
|
* Check for outstanding ELS FLOGI to abort.
|
|
*/
|
|
|
|
/* FLOGI failed, so just use loop map to make discovery list */
|
|
lpfc_disc_list_loopmap(vport);
|
|
|
|
/* Start discovery */
|
|
lpfc_disc_start(vport);
|
|
break;
|
|
|
|
case LPFC_FABRIC_CFG_LINK:
|
|
/* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for
|
|
NameServer login */
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
|
|
"0223 Timeout while waiting for "
|
|
"NameServer login\n");
|
|
/* Next look for NameServer ndlp */
|
|
ndlp = lpfc_findnode_did(vport, NameServer_DID);
|
|
if (ndlp && NLP_CHK_NODE_ACT(ndlp))
|
|
lpfc_els_abort(phba, ndlp);
|
|
|
|
/* ReStart discovery */
|
|
goto restart_disc;
|
|
|
|
case LPFC_NS_QRY:
|
|
/* Check for wait for NameServer Rsp timeout */
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
|
|
"0224 NameServer Query timeout "
|
|
"Data: x%x x%x\n",
|
|
vport->fc_ns_retry, LPFC_MAX_NS_RETRY);
|
|
|
|
if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) {
|
|
/* Try it one more time */
|
|
vport->fc_ns_retry++;
|
|
rc = lpfc_ns_cmd(vport, SLI_CTNS_GID_FT,
|
|
vport->fc_ns_retry, 0);
|
|
if (rc == 0)
|
|
break;
|
|
}
|
|
vport->fc_ns_retry = 0;
|
|
|
|
restart_disc:
|
|
/*
|
|
* Discovery is over.
|
|
* set port_state to PORT_READY if SLI2.
|
|
* cmpl_reg_vpi will set port_state to READY for SLI3.
|
|
*/
|
|
if (phba->sli_rev < LPFC_SLI_REV4) {
|
|
if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
|
|
lpfc_issue_reg_vpi(phba, vport);
|
|
else {
|
|
lpfc_issue_clear_la(phba, vport);
|
|
vport->port_state = LPFC_VPORT_READY;
|
|
}
|
|
}
|
|
|
|
/* Setup and issue mailbox INITIALIZE LINK command */
|
|
initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (!initlinkmbox) {
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
|
|
"0206 Device Discovery "
|
|
"completion error\n");
|
|
phba->link_state = LPFC_HBA_ERROR;
|
|
break;
|
|
}
|
|
|
|
lpfc_linkdown(phba);
|
|
lpfc_init_link(phba, initlinkmbox, phba->cfg_topology,
|
|
phba->cfg_link_speed);
|
|
initlinkmbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0;
|
|
initlinkmbox->vport = vport;
|
|
initlinkmbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
|
|
rc = lpfc_sli_issue_mbox(phba, initlinkmbox, MBX_NOWAIT);
|
|
lpfc_set_loopback_flag(phba);
|
|
if (rc == MBX_NOT_FINISHED)
|
|
mempool_free(initlinkmbox, phba->mbox_mem_pool);
|
|
|
|
break;
|
|
|
|
case LPFC_DISC_AUTH:
|
|
/* Node Authentication timeout */
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
|
|
"0227 Node Authentication timeout\n");
|
|
lpfc_disc_flush_list(vport);
|
|
|
|
/*
|
|
* set port_state to PORT_READY if SLI2.
|
|
* cmpl_reg_vpi will set port_state to READY for SLI3.
|
|
*/
|
|
if (phba->sli_rev < LPFC_SLI_REV4) {
|
|
if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
|
|
lpfc_issue_reg_vpi(phba, vport);
|
|
else { /* NPIV Not enabled */
|
|
lpfc_issue_clear_la(phba, vport);
|
|
vport->port_state = LPFC_VPORT_READY;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case LPFC_VPORT_READY:
|
|
if (vport->fc_flag & FC_RSCN_MODE) {
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
|
|
"0231 RSCN timeout Data: x%x "
|
|
"x%x\n",
|
|
vport->fc_ns_retry, LPFC_MAX_NS_RETRY);
|
|
|
|
/* Cleanup any outstanding ELS commands */
|
|
lpfc_els_flush_cmd(vport);
|
|
|
|
lpfc_els_flush_rscn(vport);
|
|
lpfc_disc_flush_list(vport);
|
|
}
|
|
break;
|
|
|
|
default:
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
|
|
"0273 Unexpected discovery timeout, "
|
|
"vport State x%x\n", vport->port_state);
|
|
break;
|
|
}
|
|
|
|
switch (phba->link_state) {
|
|
case LPFC_CLEAR_LA:
|
|
/* CLEAR LA timeout */
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
|
|
"0228 CLEAR LA timeout\n");
|
|
clrlaerr = 1;
|
|
break;
|
|
|
|
case LPFC_LINK_UP:
|
|
lpfc_issue_clear_la(phba, vport);
|
|
/* Drop thru */
|
|
case LPFC_LINK_UNKNOWN:
|
|
case LPFC_WARM_START:
|
|
case LPFC_INIT_START:
|
|
case LPFC_INIT_MBX_CMDS:
|
|
case LPFC_LINK_DOWN:
|
|
case LPFC_HBA_ERROR:
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
|
|
"0230 Unexpected timeout, hba link "
|
|
"state x%x\n", phba->link_state);
|
|
clrlaerr = 1;
|
|
break;
|
|
|
|
case LPFC_HBA_READY:
|
|
break;
|
|
}
|
|
|
|
if (clrlaerr) {
|
|
lpfc_disc_flush_list(vport);
|
|
psli->ring[(psli->extra_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
|
|
psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
|
|
psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
|
|
vport->port_state = LPFC_VPORT_READY;
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* This routine handles processing a NameServer REG_LOGIN mailbox
|
|
* command upon completion. It is setup in the LPFC_MBOXQ
|
|
* as the completion routine when the command is
|
|
* handed off to the SLI layer.
|
|
*/
|
|
void
|
|
lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
|
|
{
|
|
MAILBOX_t *mb = &pmb->u.mb;
|
|
struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
|
|
struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
|
|
struct lpfc_vport *vport = pmb->vport;
|
|
|
|
pmb->context1 = NULL;
|
|
pmb->context2 = NULL;
|
|
|
|
if (phba->sli_rev < LPFC_SLI_REV4)
|
|
ndlp->nlp_rpi = mb->un.varWords[0];
|
|
ndlp->nlp_flag |= NLP_RPI_REGISTERED;
|
|
ndlp->nlp_type |= NLP_FABRIC;
|
|
lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
|
|
"0004 rpi:%x DID:%x flg:%x %d map:%x %p\n",
|
|
ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag,
|
|
atomic_read(&ndlp->kref.refcount),
|
|
ndlp->nlp_usg_map, ndlp);
|
|
/*
|
|
* Start issuing Fabric-Device Management Interface (FDMI) command to
|
|
* 0xfffffa (FDMI well known port) or Delay issuing FDMI command if
|
|
* fdmi-on=2 (supporting RPA/hostnmae)
|
|
*/
|
|
|
|
if (vport->cfg_fdmi_on & LPFC_FDMI_REG_DELAY)
|
|
mod_timer(&vport->fc_fdmitmo,
|
|
jiffies + msecs_to_jiffies(1000 * 60));
|
|
else
|
|
lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA);
|
|
|
|
/* decrement the node reference count held for this callback
|
|
* function.
|
|
*/
|
|
lpfc_nlp_put(ndlp);
|
|
lpfc_mbuf_free(phba, mp->virt, mp->phys);
|
|
kfree(mp);
|
|
mempool_free(pmb, phba->mbox_mem_pool);
|
|
|
|
return;
|
|
}
|
|
|
|
static int
|
|
lpfc_filter_by_rpi(struct lpfc_nodelist *ndlp, void *param)
|
|
{
|
|
uint16_t *rpi = param;
|
|
|
|
/* check for active node */
|
|
if (!NLP_CHK_NODE_ACT(ndlp))
|
|
return 0;
|
|
|
|
return ndlp->nlp_rpi == *rpi;
|
|
}
|
|
|
|
static int
|
|
lpfc_filter_by_wwpn(struct lpfc_nodelist *ndlp, void *param)
|
|
{
|
|
return memcmp(&ndlp->nlp_portname, param,
|
|
sizeof(ndlp->nlp_portname)) == 0;
|
|
}
|
|
|
|
static struct lpfc_nodelist *
|
|
__lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param)
|
|
{
|
|
struct lpfc_nodelist *ndlp;
|
|
|
|
list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
|
|
if (filter(ndlp, param)) {
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
|
|
"3185 FIND node filter %p DID "
|
|
"Data: x%p x%x x%x\n",
|
|
filter, ndlp, ndlp->nlp_DID,
|
|
ndlp->nlp_flag);
|
|
return ndlp;
|
|
}
|
|
}
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
|
|
"3186 FIND node filter %p NOT FOUND.\n", filter);
|
|
return NULL;
|
|
}
|
|
|
|
/*
|
|
* This routine looks up the ndlp lists for the given RPI. If rpi found it
|
|
* returns the node list element pointer else return NULL.
|
|
*/
|
|
struct lpfc_nodelist *
|
|
__lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi)
|
|
{
|
|
return __lpfc_find_node(vport, lpfc_filter_by_rpi, &rpi);
|
|
}
|
|
|
|
/*
|
|
* This routine looks up the ndlp lists for the given WWPN. If WWPN found it
|
|
* returns the node element list pointer else return NULL.
|
|
*/
|
|
struct lpfc_nodelist *
|
|
lpfc_findnode_wwpn(struct lpfc_vport *vport, struct lpfc_name *wwpn)
|
|
{
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
struct lpfc_nodelist *ndlp;
|
|
|
|
spin_lock_irq(shost->host_lock);
|
|
ndlp = __lpfc_find_node(vport, lpfc_filter_by_wwpn, wwpn);
|
|
spin_unlock_irq(shost->host_lock);
|
|
return ndlp;
|
|
}
|
|
|
|
/*
|
|
* This routine looks up the ndlp lists for the given RPI. If the rpi
|
|
* is found, the routine returns the node element list pointer else
|
|
* return NULL.
|
|
*/
|
|
struct lpfc_nodelist *
|
|
lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi)
|
|
{
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
struct lpfc_nodelist *ndlp;
|
|
|
|
spin_lock_irq(shost->host_lock);
|
|
ndlp = __lpfc_findnode_rpi(vport, rpi);
|
|
spin_unlock_irq(shost->host_lock);
|
|
return ndlp;
|
|
}
|
|
|
|
/**
|
|
* lpfc_find_vport_by_vpid - Find a vport on a HBA through vport identifier
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @vpi: the physical host virtual N_Port identifier.
|
|
*
|
|
* This routine finds a vport on a HBA (referred by @phba) through a
|
|
* @vpi. The function walks the HBA's vport list and returns the address
|
|
* of the vport with the matching @vpi.
|
|
*
|
|
* Return code
|
|
* NULL - No vport with the matching @vpi found
|
|
* Otherwise - Address to the vport with the matching @vpi.
|
|
**/
|
|
struct lpfc_vport *
|
|
lpfc_find_vport_by_vpid(struct lpfc_hba *phba, uint16_t vpi)
|
|
{
|
|
struct lpfc_vport *vport;
|
|
unsigned long flags;
|
|
int i = 0;
|
|
|
|
/* The physical ports are always vpi 0 - translate is unnecessary. */
|
|
if (vpi > 0) {
|
|
/*
|
|
* Translate the physical vpi to the logical vpi. The
|
|
* vport stores the logical vpi.
|
|
*/
|
|
for (i = 0; i < phba->max_vpi; i++) {
|
|
if (vpi == phba->vpi_ids[i])
|
|
break;
|
|
}
|
|
|
|
if (i >= phba->max_vpi) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
|
|
"2936 Could not find Vport mapped "
|
|
"to vpi %d\n", vpi);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
spin_lock_irqsave(&phba->hbalock, flags);
|
|
list_for_each_entry(vport, &phba->port_list, listentry) {
|
|
if (vport->vpi == i) {
|
|
spin_unlock_irqrestore(&phba->hbalock, flags);
|
|
return vport;
|
|
}
|
|
}
|
|
spin_unlock_irqrestore(&phba->hbalock, flags);
|
|
return NULL;
|
|
}
|
|
|
|
void
|
|
lpfc_nlp_init(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
|
|
uint32_t did)
|
|
{
|
|
memset(ndlp, 0, sizeof (struct lpfc_nodelist));
|
|
|
|
lpfc_initialize_node(vport, ndlp, did);
|
|
INIT_LIST_HEAD(&ndlp->nlp_listp);
|
|
if (vport->phba->sli_rev == LPFC_SLI_REV4) {
|
|
ndlp->nlp_rpi = lpfc_sli4_alloc_rpi(vport->phba);
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
|
|
"0007 rpi:%x DID:%x flg:%x refcnt:%d "
|
|
"map:%x %p\n", ndlp->nlp_rpi, ndlp->nlp_DID,
|
|
ndlp->nlp_flag,
|
|
atomic_read(&ndlp->kref.refcount),
|
|
ndlp->nlp_usg_map, ndlp);
|
|
|
|
ndlp->active_rrqs_xri_bitmap =
|
|
mempool_alloc(vport->phba->active_rrq_pool,
|
|
GFP_KERNEL);
|
|
if (ndlp->active_rrqs_xri_bitmap)
|
|
memset(ndlp->active_rrqs_xri_bitmap, 0,
|
|
ndlp->phba->cfg_rrq_xri_bitmap_sz);
|
|
}
|
|
|
|
|
|
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
|
|
"node init: did:x%x",
|
|
ndlp->nlp_DID, 0, 0);
|
|
|
|
return;
|
|
}
|
|
|
|
/* This routine releases all resources associated with a specifc NPort's ndlp
|
|
* and mempool_free's the nodelist.
|
|
*/
|
|
static void
|
|
lpfc_nlp_release(struct kref *kref)
|
|
{
|
|
struct lpfc_hba *phba;
|
|
unsigned long flags;
|
|
struct lpfc_nodelist *ndlp = container_of(kref, struct lpfc_nodelist,
|
|
kref);
|
|
|
|
lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
|
|
"node release: did:x%x flg:x%x type:x%x",
|
|
ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
|
|
|
|
lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
|
|
"0279 lpfc_nlp_release: ndlp:x%p did %x "
|
|
"usgmap:x%x refcnt:%d rpi:%x\n",
|
|
(void *)ndlp, ndlp->nlp_DID, ndlp->nlp_usg_map,
|
|
atomic_read(&ndlp->kref.refcount), ndlp->nlp_rpi);
|
|
|
|
/* remove ndlp from action. */
|
|
lpfc_nlp_remove(ndlp->vport, ndlp);
|
|
|
|
/* clear the ndlp active flag for all release cases */
|
|
phba = ndlp->phba;
|
|
spin_lock_irqsave(&phba->ndlp_lock, flags);
|
|
NLP_CLR_NODE_ACT(ndlp);
|
|
spin_unlock_irqrestore(&phba->ndlp_lock, flags);
|
|
if (phba->sli_rev == LPFC_SLI_REV4)
|
|
lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
|
|
|
|
/* free ndlp memory for final ndlp release */
|
|
if (NLP_CHK_FREE_REQ(ndlp)) {
|
|
kfree(ndlp->lat_data);
|
|
if (phba->sli_rev == LPFC_SLI_REV4)
|
|
mempool_free(ndlp->active_rrqs_xri_bitmap,
|
|
ndlp->phba->active_rrq_pool);
|
|
mempool_free(ndlp, ndlp->phba->nlp_mem_pool);
|
|
}
|
|
}
|
|
|
|
/* This routine bumps the reference count for a ndlp structure to ensure
|
|
* that one discovery thread won't free a ndlp while another discovery thread
|
|
* is using it.
|
|
*/
|
|
struct lpfc_nodelist *
|
|
lpfc_nlp_get(struct lpfc_nodelist *ndlp)
|
|
{
|
|
struct lpfc_hba *phba;
|
|
unsigned long flags;
|
|
|
|
if (ndlp) {
|
|
lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
|
|
"node get: did:x%x flg:x%x refcnt:x%x",
|
|
ndlp->nlp_DID, ndlp->nlp_flag,
|
|
atomic_read(&ndlp->kref.refcount));
|
|
/* The check of ndlp usage to prevent incrementing the
|
|
* ndlp reference count that is in the process of being
|
|
* released.
|
|
*/
|
|
phba = ndlp->phba;
|
|
spin_lock_irqsave(&phba->ndlp_lock, flags);
|
|
if (!NLP_CHK_NODE_ACT(ndlp) || NLP_CHK_FREE_ACK(ndlp)) {
|
|
spin_unlock_irqrestore(&phba->ndlp_lock, flags);
|
|
lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
|
|
"0276 lpfc_nlp_get: ndlp:x%p "
|
|
"usgmap:x%x refcnt:%d\n",
|
|
(void *)ndlp, ndlp->nlp_usg_map,
|
|
atomic_read(&ndlp->kref.refcount));
|
|
return NULL;
|
|
} else
|
|
kref_get(&ndlp->kref);
|
|
spin_unlock_irqrestore(&phba->ndlp_lock, flags);
|
|
}
|
|
return ndlp;
|
|
}
|
|
|
|
/* This routine decrements the reference count for a ndlp structure. If the
|
|
* count goes to 0, this indicates the the associated nodelist should be
|
|
* freed. Returning 1 indicates the ndlp resource has been released; on the
|
|
* other hand, returning 0 indicates the ndlp resource has not been released
|
|
* yet.
|
|
*/
|
|
int
|
|
lpfc_nlp_put(struct lpfc_nodelist *ndlp)
|
|
{
|
|
struct lpfc_hba *phba;
|
|
unsigned long flags;
|
|
|
|
if (!ndlp)
|
|
return 1;
|
|
|
|
lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
|
|
"node put: did:x%x flg:x%x refcnt:x%x",
|
|
ndlp->nlp_DID, ndlp->nlp_flag,
|
|
atomic_read(&ndlp->kref.refcount));
|
|
phba = ndlp->phba;
|
|
spin_lock_irqsave(&phba->ndlp_lock, flags);
|
|
/* Check the ndlp memory free acknowledge flag to avoid the
|
|
* possible race condition that kref_put got invoked again
|
|
* after previous one has done ndlp memory free.
|
|
*/
|
|
if (NLP_CHK_FREE_ACK(ndlp)) {
|
|
spin_unlock_irqrestore(&phba->ndlp_lock, flags);
|
|
lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
|
|
"0274 lpfc_nlp_put: ndlp:x%p "
|
|
"usgmap:x%x refcnt:%d\n",
|
|
(void *)ndlp, ndlp->nlp_usg_map,
|
|
atomic_read(&ndlp->kref.refcount));
|
|
return 1;
|
|
}
|
|
/* Check the ndlp inactivate log flag to avoid the possible
|
|
* race condition that kref_put got invoked again after ndlp
|
|
* is already in inactivating state.
|
|
*/
|
|
if (NLP_CHK_IACT_REQ(ndlp)) {
|
|
spin_unlock_irqrestore(&phba->ndlp_lock, flags);
|
|
lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
|
|
"0275 lpfc_nlp_put: ndlp:x%p "
|
|
"usgmap:x%x refcnt:%d\n",
|
|
(void *)ndlp, ndlp->nlp_usg_map,
|
|
atomic_read(&ndlp->kref.refcount));
|
|
return 1;
|
|
}
|
|
/* For last put, mark the ndlp usage flags to make sure no
|
|
* other kref_get and kref_put on the same ndlp shall get
|
|
* in between the process when the final kref_put has been
|
|
* invoked on this ndlp.
|
|
*/
|
|
if (atomic_read(&ndlp->kref.refcount) == 1) {
|
|
/* Indicate ndlp is put to inactive state. */
|
|
NLP_SET_IACT_REQ(ndlp);
|
|
/* Acknowledge ndlp memory free has been seen. */
|
|
if (NLP_CHK_FREE_REQ(ndlp))
|
|
NLP_SET_FREE_ACK(ndlp);
|
|
}
|
|
spin_unlock_irqrestore(&phba->ndlp_lock, flags);
|
|
/* Note, the kref_put returns 1 when decrementing a reference
|
|
* count that was 1, it invokes the release callback function,
|
|
* but it still left the reference count as 1 (not actually
|
|
* performs the last decrementation). Otherwise, it actually
|
|
* decrements the reference count and returns 0.
|
|
*/
|
|
return kref_put(&ndlp->kref, lpfc_nlp_release);
|
|
}
|
|
|
|
/* This routine free's the specified nodelist if it is not in use
|
|
* by any other discovery thread. This routine returns 1 if the
|
|
* ndlp has been freed. A return value of 0 indicates the ndlp is
|
|
* not yet been released.
|
|
*/
|
|
int
|
|
lpfc_nlp_not_used(struct lpfc_nodelist *ndlp)
|
|
{
|
|
lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
|
|
"node not used: did:x%x flg:x%x refcnt:x%x",
|
|
ndlp->nlp_DID, ndlp->nlp_flag,
|
|
atomic_read(&ndlp->kref.refcount));
|
|
if (atomic_read(&ndlp->kref.refcount) == 1)
|
|
if (lpfc_nlp_put(ndlp))
|
|
return 1;
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_fcf_inuse - Check if FCF can be unregistered.
|
|
* @phba: Pointer to hba context object.
|
|
*
|
|
* This function iterate through all FC nodes associated
|
|
* will all vports to check if there is any node with
|
|
* fc_rports associated with it. If there is an fc_rport
|
|
* associated with the node, then the node is either in
|
|
* discovered state or its devloss_timer is pending.
|
|
*/
|
|
static int
|
|
lpfc_fcf_inuse(struct lpfc_hba *phba)
|
|
{
|
|
struct lpfc_vport **vports;
|
|
int i, ret = 0;
|
|
struct lpfc_nodelist *ndlp;
|
|
struct Scsi_Host *shost;
|
|
|
|
vports = lpfc_create_vport_work_array(phba);
|
|
|
|
/* If driver cannot allocate memory, indicate fcf is in use */
|
|
if (!vports)
|
|
return 1;
|
|
|
|
for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
|
|
shost = lpfc_shost_from_vport(vports[i]);
|
|
spin_lock_irq(shost->host_lock);
|
|
/*
|
|
* IF the CVL_RCVD bit is not set then we have sent the
|
|
* flogi.
|
|
* If dev_loss fires while we are waiting we do not want to
|
|
* unreg the fcf.
|
|
*/
|
|
if (!(vports[i]->fc_flag & FC_VPORT_CVL_RCVD)) {
|
|
spin_unlock_irq(shost->host_lock);
|
|
ret = 1;
|
|
goto out;
|
|
}
|
|
list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) {
|
|
if (NLP_CHK_NODE_ACT(ndlp) && ndlp->rport &&
|
|
(ndlp->rport->roles & FC_RPORT_ROLE_FCP_TARGET)) {
|
|
ret = 1;
|
|
spin_unlock_irq(shost->host_lock);
|
|
goto out;
|
|
} else if (ndlp->nlp_flag & NLP_RPI_REGISTERED) {
|
|
ret = 1;
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
|
|
"2624 RPI %x DID %x flag %x "
|
|
"still logged in\n",
|
|
ndlp->nlp_rpi, ndlp->nlp_DID,
|
|
ndlp->nlp_flag);
|
|
}
|
|
}
|
|
spin_unlock_irq(shost->host_lock);
|
|
}
|
|
out:
|
|
lpfc_destroy_vport_work_array(phba, vports);
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* lpfc_unregister_vfi_cmpl - Completion handler for unreg vfi.
|
|
* @phba: Pointer to hba context object.
|
|
* @mboxq: Pointer to mailbox object.
|
|
*
|
|
* This function frees memory associated with the mailbox command.
|
|
*/
|
|
void
|
|
lpfc_unregister_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
|
|
{
|
|
struct lpfc_vport *vport = mboxq->vport;
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
|
|
if (mboxq->u.mb.mbxStatus) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
|
|
"2555 UNREG_VFI mbxStatus error x%x "
|
|
"HBA state x%x\n",
|
|
mboxq->u.mb.mbxStatus, vport->port_state);
|
|
}
|
|
spin_lock_irq(shost->host_lock);
|
|
phba->pport->fc_flag &= ~FC_VFI_REGISTERED;
|
|
spin_unlock_irq(shost->host_lock);
|
|
mempool_free(mboxq, phba->mbox_mem_pool);
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* lpfc_unregister_fcfi_cmpl - Completion handler for unreg fcfi.
|
|
* @phba: Pointer to hba context object.
|
|
* @mboxq: Pointer to mailbox object.
|
|
*
|
|
* This function frees memory associated with the mailbox command.
|
|
*/
|
|
static void
|
|
lpfc_unregister_fcfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
|
|
{
|
|
struct lpfc_vport *vport = mboxq->vport;
|
|
|
|
if (mboxq->u.mb.mbxStatus) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
|
|
"2550 UNREG_FCFI mbxStatus error x%x "
|
|
"HBA state x%x\n",
|
|
mboxq->u.mb.mbxStatus, vport->port_state);
|
|
}
|
|
mempool_free(mboxq, phba->mbox_mem_pool);
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* lpfc_unregister_fcf_prep - Unregister fcf record preparation
|
|
* @phba: Pointer to hba context object.
|
|
*
|
|
* This function prepare the HBA for unregistering the currently registered
|
|
* FCF from the HBA. It performs unregistering, in order, RPIs, VPIs, and
|
|
* VFIs.
|
|
*/
|
|
int
|
|
lpfc_unregister_fcf_prep(struct lpfc_hba *phba)
|
|
{
|
|
struct lpfc_vport **vports;
|
|
struct lpfc_nodelist *ndlp;
|
|
struct Scsi_Host *shost;
|
|
int i = 0, rc;
|
|
|
|
/* Unregister RPIs */
|
|
if (lpfc_fcf_inuse(phba))
|
|
lpfc_unreg_hba_rpis(phba);
|
|
|
|
/* At this point, all discovery is aborted */
|
|
phba->pport->port_state = LPFC_VPORT_UNKNOWN;
|
|
|
|
/* Unregister VPIs */
|
|
vports = lpfc_create_vport_work_array(phba);
|
|
if (vports && (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED))
|
|
for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
|
|
/* Stop FLOGI/FDISC retries */
|
|
ndlp = lpfc_findnode_did(vports[i], Fabric_DID);
|
|
if (ndlp)
|
|
lpfc_cancel_retry_delay_tmo(vports[i], ndlp);
|
|
lpfc_cleanup_pending_mbox(vports[i]);
|
|
if (phba->sli_rev == LPFC_SLI_REV4)
|
|
lpfc_sli4_unreg_all_rpis(vports[i]);
|
|
lpfc_mbx_unreg_vpi(vports[i]);
|
|
shost = lpfc_shost_from_vport(vports[i]);
|
|
spin_lock_irq(shost->host_lock);
|
|
vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
|
|
vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
|
|
spin_unlock_irq(shost->host_lock);
|
|
}
|
|
lpfc_destroy_vport_work_array(phba, vports);
|
|
if (i == 0 && (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED))) {
|
|
ndlp = lpfc_findnode_did(phba->pport, Fabric_DID);
|
|
if (ndlp)
|
|
lpfc_cancel_retry_delay_tmo(phba->pport, ndlp);
|
|
lpfc_cleanup_pending_mbox(phba->pport);
|
|
if (phba->sli_rev == LPFC_SLI_REV4)
|
|
lpfc_sli4_unreg_all_rpis(phba->pport);
|
|
lpfc_mbx_unreg_vpi(phba->pport);
|
|
shost = lpfc_shost_from_vport(phba->pport);
|
|
spin_lock_irq(shost->host_lock);
|
|
phba->pport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
|
|
phba->pport->vpi_state &= ~LPFC_VPI_REGISTERED;
|
|
spin_unlock_irq(shost->host_lock);
|
|
}
|
|
|
|
/* Cleanup any outstanding ELS commands */
|
|
lpfc_els_flush_all_cmd(phba);
|
|
|
|
/* Unregister the physical port VFI */
|
|
rc = lpfc_issue_unreg_vfi(phba->pport);
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_unregister_fcf - Unregister currently registered FCF record
|
|
* @phba: Pointer to hba context object.
|
|
*
|
|
* This function issues synchronous unregister FCF mailbox command to HBA to
|
|
* unregister the currently registered FCF record. The driver does not reset
|
|
* the driver FCF usage state flags.
|
|
*
|
|
* Return 0 if successfully issued, none-zero otherwise.
|
|
*/
|
|
int
|
|
lpfc_sli4_unregister_fcf(struct lpfc_hba *phba)
|
|
{
|
|
LPFC_MBOXQ_t *mbox;
|
|
int rc;
|
|
|
|
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (!mbox) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
|
|
"2551 UNREG_FCFI mbox allocation failed"
|
|
"HBA state x%x\n", phba->pport->port_state);
|
|
return -ENOMEM;
|
|
}
|
|
lpfc_unreg_fcfi(mbox, phba->fcf.fcfi);
|
|
mbox->vport = phba->pport;
|
|
mbox->mbox_cmpl = lpfc_unregister_fcfi_cmpl;
|
|
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
|
|
|
|
if (rc == MBX_NOT_FINISHED) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
|
|
"2552 Unregister FCFI command failed rc x%x "
|
|
"HBA state x%x\n",
|
|
rc, phba->pport->port_state);
|
|
return -EINVAL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_unregister_fcf_rescan - Unregister currently registered fcf and rescan
|
|
* @phba: Pointer to hba context object.
|
|
*
|
|
* This function unregisters the currently reigstered FCF. This function
|
|
* also tries to find another FCF for discovery by rescan the HBA FCF table.
|
|
*/
|
|
void
|
|
lpfc_unregister_fcf_rescan(struct lpfc_hba *phba)
|
|
{
|
|
int rc;
|
|
|
|
/* Preparation for unregistering fcf */
|
|
rc = lpfc_unregister_fcf_prep(phba);
|
|
if (rc) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
|
|
"2748 Failed to prepare for unregistering "
|
|
"HBA's FCF record: rc=%d\n", rc);
|
|
return;
|
|
}
|
|
|
|
/* Now, unregister FCF record and reset HBA FCF state */
|
|
rc = lpfc_sli4_unregister_fcf(phba);
|
|
if (rc)
|
|
return;
|
|
/* Reset HBA FCF states after successful unregister FCF */
|
|
phba->fcf.fcf_flag = 0;
|
|
phba->fcf.current_rec.flag = 0;
|
|
|
|
/*
|
|
* If driver is not unloading, check if there is any other
|
|
* FCF record that can be used for discovery.
|
|
*/
|
|
if ((phba->pport->load_flag & FC_UNLOADING) ||
|
|
(phba->link_state < LPFC_LINK_UP))
|
|
return;
|
|
|
|
/* This is considered as the initial FCF discovery scan */
|
|
spin_lock_irq(&phba->hbalock);
|
|
phba->fcf.fcf_flag |= FCF_INIT_DISC;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
|
|
/* Reset FCF roundrobin bmask for new discovery */
|
|
lpfc_sli4_clear_fcf_rr_bmask(phba);
|
|
|
|
rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
|
|
|
|
if (rc) {
|
|
spin_lock_irq(&phba->hbalock);
|
|
phba->fcf.fcf_flag &= ~FCF_INIT_DISC;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
|
|
"2553 lpfc_unregister_unused_fcf failed "
|
|
"to read FCF record HBA state x%x\n",
|
|
phba->pport->port_state);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* lpfc_unregister_fcf - Unregister the currently registered fcf record
|
|
* @phba: Pointer to hba context object.
|
|
*
|
|
* This function just unregisters the currently reigstered FCF. It does not
|
|
* try to find another FCF for discovery.
|
|
*/
|
|
void
|
|
lpfc_unregister_fcf(struct lpfc_hba *phba)
|
|
{
|
|
int rc;
|
|
|
|
/* Preparation for unregistering fcf */
|
|
rc = lpfc_unregister_fcf_prep(phba);
|
|
if (rc) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
|
|
"2749 Failed to prepare for unregistering "
|
|
"HBA's FCF record: rc=%d\n", rc);
|
|
return;
|
|
}
|
|
|
|
/* Now, unregister FCF record and reset HBA FCF state */
|
|
rc = lpfc_sli4_unregister_fcf(phba);
|
|
if (rc)
|
|
return;
|
|
/* Set proper HBA FCF states after successful unregister FCF */
|
|
spin_lock_irq(&phba->hbalock);
|
|
phba->fcf.fcf_flag &= ~FCF_REGISTERED;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
}
|
|
|
|
/**
|
|
* lpfc_unregister_unused_fcf - Unregister FCF if all devices are disconnected.
|
|
* @phba: Pointer to hba context object.
|
|
*
|
|
* This function check if there are any connected remote port for the FCF and
|
|
* if all the devices are disconnected, this function unregister FCFI.
|
|
* This function also tries to use another FCF for discovery.
|
|
*/
|
|
void
|
|
lpfc_unregister_unused_fcf(struct lpfc_hba *phba)
|
|
{
|
|
/*
|
|
* If HBA is not running in FIP mode, if HBA does not support
|
|
* FCoE, if FCF discovery is ongoing, or if FCF has not been
|
|
* registered, do nothing.
|
|
*/
|
|
spin_lock_irq(&phba->hbalock);
|
|
if (!(phba->hba_flag & HBA_FCOE_MODE) ||
|
|
!(phba->fcf.fcf_flag & FCF_REGISTERED) ||
|
|
!(phba->hba_flag & HBA_FIP_SUPPORT) ||
|
|
(phba->fcf.fcf_flag & FCF_DISCOVERY) ||
|
|
(phba->pport->port_state == LPFC_FLOGI)) {
|
|
spin_unlock_irq(&phba->hbalock);
|
|
return;
|
|
}
|
|
spin_unlock_irq(&phba->hbalock);
|
|
|
|
if (lpfc_fcf_inuse(phba))
|
|
return;
|
|
|
|
lpfc_unregister_fcf_rescan(phba);
|
|
}
|
|
|
|
/**
|
|
* lpfc_read_fcf_conn_tbl - Create driver FCF connection table.
|
|
* @phba: Pointer to hba context object.
|
|
* @buff: Buffer containing the FCF connection table as in the config
|
|
* region.
|
|
* This function create driver data structure for the FCF connection
|
|
* record table read from config region 23.
|
|
*/
|
|
static void
|
|
lpfc_read_fcf_conn_tbl(struct lpfc_hba *phba,
|
|
uint8_t *buff)
|
|
{
|
|
struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
|
|
struct lpfc_fcf_conn_hdr *conn_hdr;
|
|
struct lpfc_fcf_conn_rec *conn_rec;
|
|
uint32_t record_count;
|
|
int i;
|
|
|
|
/* Free the current connect table */
|
|
list_for_each_entry_safe(conn_entry, next_conn_entry,
|
|
&phba->fcf_conn_rec_list, list) {
|
|
list_del_init(&conn_entry->list);
|
|
kfree(conn_entry);
|
|
}
|
|
|
|
conn_hdr = (struct lpfc_fcf_conn_hdr *) buff;
|
|
record_count = conn_hdr->length * sizeof(uint32_t)/
|
|
sizeof(struct lpfc_fcf_conn_rec);
|
|
|
|
conn_rec = (struct lpfc_fcf_conn_rec *)
|
|
(buff + sizeof(struct lpfc_fcf_conn_hdr));
|
|
|
|
for (i = 0; i < record_count; i++) {
|
|
if (!(conn_rec[i].flags & FCFCNCT_VALID))
|
|
continue;
|
|
conn_entry = kzalloc(sizeof(struct lpfc_fcf_conn_entry),
|
|
GFP_KERNEL);
|
|
if (!conn_entry) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
|
|
"2566 Failed to allocate connection"
|
|
" table entry\n");
|
|
return;
|
|
}
|
|
|
|
memcpy(&conn_entry->conn_rec, &conn_rec[i],
|
|
sizeof(struct lpfc_fcf_conn_rec));
|
|
list_add_tail(&conn_entry->list,
|
|
&phba->fcf_conn_rec_list);
|
|
}
|
|
|
|
if (!list_empty(&phba->fcf_conn_rec_list)) {
|
|
i = 0;
|
|
list_for_each_entry(conn_entry, &phba->fcf_conn_rec_list,
|
|
list) {
|
|
conn_rec = &conn_entry->conn_rec;
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
|
|
"3345 FCF connection list rec[%02d]: "
|
|
"flags:x%04x, vtag:x%04x, "
|
|
"fabric_name:x%02x:%02x:%02x:%02x:"
|
|
"%02x:%02x:%02x:%02x, "
|
|
"switch_name:x%02x:%02x:%02x:%02x:"
|
|
"%02x:%02x:%02x:%02x\n", i++,
|
|
conn_rec->flags, conn_rec->vlan_tag,
|
|
conn_rec->fabric_name[0],
|
|
conn_rec->fabric_name[1],
|
|
conn_rec->fabric_name[2],
|
|
conn_rec->fabric_name[3],
|
|
conn_rec->fabric_name[4],
|
|
conn_rec->fabric_name[5],
|
|
conn_rec->fabric_name[6],
|
|
conn_rec->fabric_name[7],
|
|
conn_rec->switch_name[0],
|
|
conn_rec->switch_name[1],
|
|
conn_rec->switch_name[2],
|
|
conn_rec->switch_name[3],
|
|
conn_rec->switch_name[4],
|
|
conn_rec->switch_name[5],
|
|
conn_rec->switch_name[6],
|
|
conn_rec->switch_name[7]);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* lpfc_read_fcoe_param - Read FCoe parameters from conf region..
|
|
* @phba: Pointer to hba context object.
|
|
* @buff: Buffer containing the FCoE parameter data structure.
|
|
*
|
|
* This function update driver data structure with config
|
|
* parameters read from config region 23.
|
|
*/
|
|
static void
|
|
lpfc_read_fcoe_param(struct lpfc_hba *phba,
|
|
uint8_t *buff)
|
|
{
|
|
struct lpfc_fip_param_hdr *fcoe_param_hdr;
|
|
struct lpfc_fcoe_params *fcoe_param;
|
|
|
|
fcoe_param_hdr = (struct lpfc_fip_param_hdr *)
|
|
buff;
|
|
fcoe_param = (struct lpfc_fcoe_params *)
|
|
(buff + sizeof(struct lpfc_fip_param_hdr));
|
|
|
|
if ((fcoe_param_hdr->parm_version != FIPP_VERSION) ||
|
|
(fcoe_param_hdr->length != FCOE_PARAM_LENGTH))
|
|
return;
|
|
|
|
if (fcoe_param_hdr->parm_flags & FIPP_VLAN_VALID) {
|
|
phba->valid_vlan = 1;
|
|
phba->vlan_id = le16_to_cpu(fcoe_param->vlan_tag) &
|
|
0xFFF;
|
|
}
|
|
|
|
phba->fc_map[0] = fcoe_param->fc_map[0];
|
|
phba->fc_map[1] = fcoe_param->fc_map[1];
|
|
phba->fc_map[2] = fcoe_param->fc_map[2];
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* lpfc_get_rec_conf23 - Get a record type in config region data.
|
|
* @buff: Buffer containing config region 23 data.
|
|
* @size: Size of the data buffer.
|
|
* @rec_type: Record type to be searched.
|
|
*
|
|
* This function searches config region data to find the beginning
|
|
* of the record specified by record_type. If record found, this
|
|
* function return pointer to the record else return NULL.
|
|
*/
|
|
static uint8_t *
|
|
lpfc_get_rec_conf23(uint8_t *buff, uint32_t size, uint8_t rec_type)
|
|
{
|
|
uint32_t offset = 0, rec_length;
|
|
|
|
if ((buff[0] == LPFC_REGION23_LAST_REC) ||
|
|
(size < sizeof(uint32_t)))
|
|
return NULL;
|
|
|
|
rec_length = buff[offset + 1];
|
|
|
|
/*
|
|
* One TLV record has one word header and number of data words
|
|
* specified in the rec_length field of the record header.
|
|
*/
|
|
while ((offset + rec_length * sizeof(uint32_t) + sizeof(uint32_t))
|
|
<= size) {
|
|
if (buff[offset] == rec_type)
|
|
return &buff[offset];
|
|
|
|
if (buff[offset] == LPFC_REGION23_LAST_REC)
|
|
return NULL;
|
|
|
|
offset += rec_length * sizeof(uint32_t) + sizeof(uint32_t);
|
|
rec_length = buff[offset + 1];
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* lpfc_parse_fcoe_conf - Parse FCoE config data read from config region 23.
|
|
* @phba: Pointer to lpfc_hba data structure.
|
|
* @buff: Buffer containing config region 23 data.
|
|
* @size: Size of the data buffer.
|
|
*
|
|
* This function parses the FCoE config parameters in config region 23 and
|
|
* populate driver data structure with the parameters.
|
|
*/
|
|
void
|
|
lpfc_parse_fcoe_conf(struct lpfc_hba *phba,
|
|
uint8_t *buff,
|
|
uint32_t size)
|
|
{
|
|
uint32_t offset = 0;
|
|
uint8_t *rec_ptr;
|
|
|
|
/*
|
|
* If data size is less than 2 words signature and version cannot be
|
|
* verified.
|
|
*/
|
|
if (size < 2*sizeof(uint32_t))
|
|
return;
|
|
|
|
/* Check the region signature first */
|
|
if (memcmp(buff, LPFC_REGION23_SIGNATURE, 4)) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
|
|
"2567 Config region 23 has bad signature\n");
|
|
return;
|
|
}
|
|
|
|
offset += 4;
|
|
|
|
/* Check the data structure version */
|
|
if (buff[offset] != LPFC_REGION23_VERSION) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
|
|
"2568 Config region 23 has bad version\n");
|
|
return;
|
|
}
|
|
offset += 4;
|
|
|
|
/* Read FCoE param record */
|
|
rec_ptr = lpfc_get_rec_conf23(&buff[offset],
|
|
size - offset, FCOE_PARAM_TYPE);
|
|
if (rec_ptr)
|
|
lpfc_read_fcoe_param(phba, rec_ptr);
|
|
|
|
/* Read FCF connection table */
|
|
rec_ptr = lpfc_get_rec_conf23(&buff[offset],
|
|
size - offset, FCOE_CONN_TBL_TYPE);
|
|
if (rec_ptr)
|
|
lpfc_read_fcf_conn_tbl(phba, rec_ptr);
|
|
|
|
}
|