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![James Smart](/assets/img/avatar_default.png)
Rework misplaced reference taking on node structure Signed-off-by: James Smart <James.Smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2978 lines
79 KiB
C
2978 lines
79 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) 2004-2007 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/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_hw.h"
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#include "lpfc_disc.h"
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#include "lpfc_sli.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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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) {
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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->vport->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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* A device is normally blocked for rediscovery and unblocked when
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* devloss timeout happens. In case a vport is removed or driver
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* unloaded before devloss timeout happens, we need to unblock here.
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*/
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scsi_target_unblock(&rport->dev);
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return;
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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 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)
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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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/* 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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evtp = &ndlp->dev_loss_evt;
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if (!list_empty(&evtp->evt_listp))
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return;
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spin_lock_irq(&phba->hbalock);
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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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evtp->evt = LPFC_EVT_DEV_LOSS;
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list_add_tail(&evtp->evt_listp, &phba->work_list);
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if (phba->work_wait)
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wake_up(phba->work_wait);
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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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* This function is called from the worker thread when dev_loss_tmo
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* expire.
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*/
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static void
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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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uint8_t *name;
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int put_node;
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int put_rport;
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int warn_on = 0;
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rport = ndlp->rport;
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if (!rport)
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return;
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rdata = rport->dd_data;
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name = (uint8_t *) &ndlp->nlp_portname;
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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 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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/* 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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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 (ndlp->nlp_type & NLP_FABRIC) {
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/* We will clean up these Nodes in linkup */
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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_sid != NLP_NO_SID) {
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warn_on = 1;
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/* flush the target */
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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 (vport->load_flag & FC_UNLOADING)
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warn_on = 0;
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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 %x:%x:%x:%x:%x:%x:%x:%x "
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"NPort x%x 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 %x:%x:%x:%x:%x:%x:%x:%x "
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"NPort x%x 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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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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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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lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM);
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}
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}
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void
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lpfc_worker_wake_up(struct lpfc_hba *phba)
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{
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wake_up(phba->work_wait);
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return;
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}
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static void
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lpfc_work_list_done(struct lpfc_hba *phba)
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{
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struct lpfc_work_evt *evtp = NULL;
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struct lpfc_nodelist *ndlp;
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int free_evt;
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spin_lock_irq(&phba->hbalock);
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while (!list_empty(&phba->work_list)) {
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list_remove_head((&phba->work_list), evtp, typeof(*evtp),
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evt_listp);
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spin_unlock_irq(&phba->hbalock);
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free_evt = 1;
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switch (evtp->evt) {
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case LPFC_EVT_ELS_RETRY:
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ndlp = (struct lpfc_nodelist *) (evtp->evt_arg1);
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lpfc_els_retry_delay_handler(ndlp);
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free_evt = 0; /* evt is part of ndlp */
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/* decrement the node reference count held
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* for this queued work
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*/
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lpfc_nlp_put(ndlp);
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break;
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case LPFC_EVT_DEV_LOSS:
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ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1);
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lpfc_dev_loss_tmo_handler(ndlp);
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free_evt = 0;
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/* decrement the node reference count held for
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* this queued work
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*/
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lpfc_nlp_put(ndlp);
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break;
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case LPFC_EVT_ONLINE:
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if (phba->link_state < LPFC_LINK_DOWN)
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*(int *) (evtp->evt_arg1) = lpfc_online(phba);
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else
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*(int *) (evtp->evt_arg1) = 0;
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complete((struct completion *)(evtp->evt_arg2));
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break;
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case LPFC_EVT_OFFLINE_PREP:
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if (phba->link_state >= LPFC_LINK_DOWN)
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lpfc_offline_prep(phba);
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*(int *)(evtp->evt_arg1) = 0;
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complete((struct completion *)(evtp->evt_arg2));
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break;
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case LPFC_EVT_OFFLINE:
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lpfc_offline(phba);
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lpfc_sli_brdrestart(phba);
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*(int *)(evtp->evt_arg1) =
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lpfc_sli_brdready(phba, HS_FFRDY | HS_MBRDY);
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lpfc_unblock_mgmt_io(phba);
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complete((struct completion *)(evtp->evt_arg2));
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break;
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case LPFC_EVT_WARM_START:
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lpfc_offline(phba);
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lpfc_reset_barrier(phba);
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lpfc_sli_brdreset(phba);
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lpfc_hba_down_post(phba);
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*(int *)(evtp->evt_arg1) =
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lpfc_sli_brdready(phba, HS_MBRDY);
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lpfc_unblock_mgmt_io(phba);
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complete((struct completion *)(evtp->evt_arg2));
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break;
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case LPFC_EVT_KILL:
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lpfc_offline(phba);
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*(int *)(evtp->evt_arg1)
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= (phba->pport->stopped)
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? 0 : lpfc_sli_brdkill(phba);
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lpfc_unblock_mgmt_io(phba);
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complete((struct completion *)(evtp->evt_arg2));
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break;
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}
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if (free_evt)
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kfree(evtp);
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spin_lock_irq(&phba->hbalock);
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}
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spin_unlock_irq(&phba->hbalock);
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}
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static void
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lpfc_work_done(struct lpfc_hba *phba)
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{
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struct lpfc_sli_ring *pring;
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uint32_t ha_copy, status, control, work_port_events;
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struct lpfc_vport **vports;
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struct lpfc_vport *vport;
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int i;
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spin_lock_irq(&phba->hbalock);
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ha_copy = phba->work_ha;
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phba->work_ha = 0;
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spin_unlock_irq(&phba->hbalock);
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if (ha_copy & HA_ERATT)
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lpfc_handle_eratt(phba);
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if (ha_copy & HA_MBATT)
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lpfc_sli_handle_mb_event(phba);
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if (ha_copy & HA_LATT)
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lpfc_handle_latt(phba);
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vports = lpfc_create_vport_work_array(phba);
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if (vports != NULL)
|
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for(i = 0; i <= phba->max_vpi; i++) {
|
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/*
|
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* We could have no vports in array if unloading, so if
|
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* this happens then just use the pport
|
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*/
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if (vports[i] == NULL && i == 0)
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vport = phba->pport;
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else
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vport = vports[i];
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if (vport == NULL)
|
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break;
|
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work_port_events = vport->work_port_events;
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if (work_port_events & WORKER_DISC_TMO)
|
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lpfc_disc_timeout_handler(vport);
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if (work_port_events & WORKER_ELS_TMO)
|
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lpfc_els_timeout_handler(vport);
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if (work_port_events & WORKER_HB_TMO)
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lpfc_hb_timeout_handler(phba);
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if (work_port_events & WORKER_MBOX_TMO)
|
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lpfc_mbox_timeout_handler(phba);
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if (work_port_events & WORKER_FABRIC_BLOCK_TMO)
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lpfc_unblock_fabric_iocbs(phba);
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if (work_port_events & WORKER_FDMI_TMO)
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lpfc_fdmi_timeout_handler(vport);
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if (work_port_events & WORKER_RAMP_DOWN_QUEUE)
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lpfc_ramp_down_queue_handler(phba);
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if (work_port_events & WORKER_RAMP_UP_QUEUE)
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lpfc_ramp_up_queue_handler(phba);
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spin_lock_irq(&vport->work_port_lock);
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vport->work_port_events &= ~work_port_events;
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spin_unlock_irq(&vport->work_port_lock);
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}
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lpfc_destroy_vport_work_array(phba, vports);
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|
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pring = &phba->sli.ring[LPFC_ELS_RING];
|
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status = (ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
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status >>= (4*LPFC_ELS_RING);
|
|
if ((status & HA_RXMASK)
|
|
|| (pring->flag & LPFC_DEFERRED_RING_EVENT)) {
|
|
if (pring->flag & LPFC_STOP_IOCB_EVENT) {
|
|
pring->flag |= LPFC_DEFERRED_RING_EVENT;
|
|
} else {
|
|
lpfc_sli_handle_slow_ring_event(phba, pring,
|
|
(status &
|
|
HA_RXMASK));
|
|
pring->flag &= ~LPFC_DEFERRED_RING_EVENT;
|
|
}
|
|
/*
|
|
* Turn on Ring interrupts
|
|
*/
|
|
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);
|
|
}
|
|
|
|
static int
|
|
check_work_wait_done(struct lpfc_hba *phba)
|
|
{
|
|
struct lpfc_vport *vport;
|
|
struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
|
|
int rc = 0;
|
|
|
|
spin_lock_irq(&phba->hbalock);
|
|
list_for_each_entry(vport, &phba->port_list, listentry) {
|
|
if (vport->work_port_events) {
|
|
rc = 1;
|
|
break;
|
|
}
|
|
}
|
|
if (rc || phba->work_ha || (!list_empty(&phba->work_list)) ||
|
|
kthread_should_stop() || pring->flag & LPFC_DEFERRED_RING_EVENT) {
|
|
rc = 1;
|
|
phba->work_found++;
|
|
} else
|
|
phba->work_found = 0;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
return rc;
|
|
}
|
|
|
|
|
|
int
|
|
lpfc_do_work(void *p)
|
|
{
|
|
struct lpfc_hba *phba = p;
|
|
int rc;
|
|
DECLARE_WAIT_QUEUE_HEAD_ONSTACK(work_waitq);
|
|
|
|
set_user_nice(current, -20);
|
|
phba->work_wait = &work_waitq;
|
|
phba->work_found = 0;
|
|
|
|
while (1) {
|
|
|
|
rc = wait_event_interruptible(work_waitq,
|
|
check_work_wait_done(phba));
|
|
|
|
BUG_ON(rc);
|
|
|
|
if (kthread_should_stop())
|
|
break;
|
|
|
|
lpfc_work_done(phba);
|
|
|
|
/* If there is alot of slow ring work, like during link up
|
|
* check_work_wait_done() may cause this thread to not give
|
|
* up the CPU for very long periods of time. This may cause
|
|
* soft lockups or other problems. To avoid these situations
|
|
* give up the CPU here after LPFC_MAX_WORKER_ITERATION
|
|
* consecutive iterations.
|
|
*/
|
|
if (phba->work_found >= LPFC_MAX_WORKER_ITERATION) {
|
|
phba->work_found = 0;
|
|
schedule();
|
|
}
|
|
}
|
|
phba->work_wait = NULL;
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* This is only called to handle FC worker events. Since this a rare
|
|
* occurance, 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);
|
|
if (phba->work_wait)
|
|
lpfc_worker_wake_up(phba);
|
|
spin_unlock_irqrestore(&phba->hbalock, flags);
|
|
|
|
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 (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 (!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) {
|
|
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)
|
|
{
|
|
/* 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);
|
|
}
|
|
|
|
static 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);
|
|
|
|
}
|
|
|
|
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;
|
|
}
|
|
spin_lock_irq(&phba->hbalock);
|
|
if (phba->link_state > LPFC_LINK_DOWN) {
|
|
phba->link_state = LPFC_LINK_DOWN;
|
|
phba->pport->fc_flag &= ~FC_LBIT;
|
|
}
|
|
spin_unlock_irq(&phba->hbalock);
|
|
vports = lpfc_create_vport_work_array(phba);
|
|
if (vports != NULL)
|
|
for(i = 0; i <= phba->max_vpi && 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, 0xffffffff, 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 (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_vpi && vports[i] != NULL; i++)
|
|
lpfc_linkup_port(vports[i]);
|
|
lpfc_destroy_vport_work_array(phba, vports);
|
|
if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
|
|
lpfc_issue_clear_la(phba, phba->pport);
|
|
|
|
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->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);
|
|
return;
|
|
|
|
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);
|
|
}
|
|
|
|
vport->port_state = LPFC_VPORT_READY;
|
|
|
|
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 | FC_ESTABLISH_LINK);
|
|
spin_unlock_irq(shost->host_lock);
|
|
|
|
del_timer_sync(&phba->fc_estabtmo);
|
|
|
|
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->mb.mbxStatus)
|
|
goto out;
|
|
|
|
mempool_free(pmb, phba->mbox_mem_pool);
|
|
|
|
if (phba->fc_topology == 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) {
|
|
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->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;
|
|
}
|
|
|
|
static void
|
|
lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
|
|
{
|
|
MAILBOX_t *mb = &pmb->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));
|
|
if (phba->cfg_soft_wwnn)
|
|
u64_to_wwn(phba->cfg_soft_wwnn,
|
|
vport->fc_sparam.nodeName.u.wwn);
|
|
if (phba->cfg_soft_wwpn)
|
|
u64_to_wwn(phba->cfg_soft_wwpn,
|
|
vport->fc_sparam.portName.u.wwn);
|
|
memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
|
|
sizeof(vport->fc_nodename));
|
|
memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
|
|
sizeof(vport->fc_portname));
|
|
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, READ_LA_VAR *la)
|
|
{
|
|
struct lpfc_vport *vport = phba->pport;
|
|
LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox;
|
|
int i;
|
|
struct lpfc_dmabuf *mp;
|
|
int rc;
|
|
|
|
sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
|
|
spin_lock_irq(&phba->hbalock);
|
|
switch (la->UlnkSpeed) {
|
|
case LA_1GHZ_LINK:
|
|
phba->fc_linkspeed = LA_1GHZ_LINK;
|
|
break;
|
|
case LA_2GHZ_LINK:
|
|
phba->fc_linkspeed = LA_2GHZ_LINK;
|
|
break;
|
|
case LA_4GHZ_LINK:
|
|
phba->fc_linkspeed = LA_4GHZ_LINK;
|
|
break;
|
|
case LA_8GHZ_LINK:
|
|
phba->fc_linkspeed = LA_8GHZ_LINK;
|
|
break;
|
|
default:
|
|
phba->fc_linkspeed = LA_UNKNW_LINK;
|
|
break;
|
|
}
|
|
|
|
phba->fc_topology = la->topology;
|
|
phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED;
|
|
|
|
if (phba->fc_topology == TOPOLOGY_LOOP) {
|
|
phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED;
|
|
|
|
/* Get Loop Map information */
|
|
if (la->il)
|
|
vport->fc_flag |= FC_LBIT;
|
|
|
|
vport->fc_myDID = la->granted_AL_PA;
|
|
i = la->un.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 == 3))
|
|
phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
|
|
}
|
|
vport->fc_myDID = phba->fc_pref_DID;
|
|
vport->fc_flag |= FC_LBIT;
|
|
}
|
|
spin_unlock_irq(&phba->hbalock);
|
|
|
|
lpfc_linkup(phba);
|
|
if (sparam_mbox) {
|
|
lpfc_read_sparam(phba, sparam_mbox, 0);
|
|
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);
|
|
if (cfglink_mbox)
|
|
mempool_free(cfglink_mbox, phba->mbox_mem_pool);
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
if (cfglink_mbox) {
|
|
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)
|
|
return;
|
|
mempool_free(cfglink_mbox, phba->mbox_mem_pool);
|
|
}
|
|
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_mbx_issue_link_down(struct lpfc_hba *phba)
|
|
{
|
|
uint32_t control;
|
|
struct lpfc_sli *psli = &phba->sli;
|
|
|
|
lpfc_linkdown(phba);
|
|
|
|
/* turn on Link Attention interrupts - no CLEAR_LA needed */
|
|
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);
|
|
}
|
|
|
|
/*
|
|
* This routine handles processing a READ_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.
|
|
*/
|
|
void
|
|
lpfc_mbx_cmpl_read_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
|
|
{
|
|
struct lpfc_vport *vport = pmb->vport;
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
READ_LA_VAR *la;
|
|
MAILBOX_t *mb = &pmb->mb;
|
|
struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
|
|
|
|
/* 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_la_free_mbuf;
|
|
}
|
|
|
|
la = (READ_LA_VAR *) & pmb->mb.un.varReadLA;
|
|
|
|
memcpy(&phba->alpa_map[0], mp->virt, 128);
|
|
|
|
spin_lock_irq(shost->host_lock);
|
|
if (la->pb)
|
|
vport->fc_flag |= FC_BYPASSED_MODE;
|
|
else
|
|
vport->fc_flag &= ~FC_BYPASSED_MODE;
|
|
spin_unlock_irq(shost->host_lock);
|
|
|
|
if (((phba->fc_eventTag + 1) < la->eventTag) ||
|
|
(phba->fc_eventTag == la->eventTag)) {
|
|
phba->fc_stat.LinkMultiEvent++;
|
|
if (la->attType == AT_LINK_UP)
|
|
if (phba->fc_eventTag != 0)
|
|
lpfc_linkdown(phba);
|
|
}
|
|
|
|
phba->fc_eventTag = la->eventTag;
|
|
|
|
if (la->attType == AT_LINK_UP) {
|
|
phba->fc_stat.LinkUp++;
|
|
if (phba->link_flag & LS_LOOPBACK_MODE) {
|
|
lpfc_printf_log(phba, KERN_INFO, 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,
|
|
la->granted_AL_PA, la->UlnkSpeed,
|
|
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\n",
|
|
la->eventTag, phba->fc_eventTag,
|
|
la->granted_AL_PA, la->UlnkSpeed,
|
|
phba->alpa_map[0]);
|
|
}
|
|
lpfc_mbx_process_link_up(phba, la);
|
|
} else {
|
|
phba->fc_stat.LinkDown++;
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
|
|
"1305 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);
|
|
}
|
|
|
|
lpfc_mbx_cmpl_read_la_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;
|
|
|
|
pmb->context1 = NULL;
|
|
|
|
/* 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->mb;
|
|
struct lpfc_vport *vport = pmb->vport;
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
|
|
switch (mb->mbxStatus) {
|
|
case 0x0011:
|
|
case 0x0020:
|
|
case 0x9700:
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
|
|
"0911 cmpl_unreg_vpi, mb status = 0x%x\n",
|
|
mb->mbxStatus);
|
|
break;
|
|
}
|
|
vport->unreg_vpi_cmpl = VPORT_OK;
|
|
mempool_free(pmb, phba->mbox_mem_pool);
|
|
/*
|
|
* This shost reference might have been taken at the beginning of
|
|
* lpfc_vport_delete()
|
|
*/
|
|
if (vport->load_flag & FC_UNLOADING)
|
|
scsi_host_put(shost);
|
|
}
|
|
|
|
void
|
|
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;
|
|
|
|
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;
|
|
}
|
|
}
|
|
|
|
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->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;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
/*
|
|
* 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->mb;
|
|
struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
|
|
struct lpfc_nodelist *ndlp;
|
|
struct lpfc_vport **vports;
|
|
int i;
|
|
|
|
ndlp = (struct lpfc_nodelist *) pmb->context2;
|
|
pmb->context1 = NULL;
|
|
pmb->context2 = NULL;
|
|
if (mb->mbxStatus) {
|
|
lpfc_mbuf_free(phba, mp->virt, mp->phys);
|
|
kfree(mp);
|
|
mempool_free(pmb, phba->mbox_mem_pool);
|
|
lpfc_nlp_put(ndlp);
|
|
|
|
if (phba->fc_topology == TOPOLOGY_LOOP) {
|
|
/* FLOGI 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);
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
|
|
"0258 Register Fabric login error: 0x%x\n",
|
|
mb->mbxStatus);
|
|
return;
|
|
}
|
|
|
|
ndlp->nlp_rpi = mb->un.varWords[0];
|
|
ndlp->nlp_type |= NLP_FABRIC;
|
|
lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
|
|
|
|
lpfc_nlp_put(ndlp); /* Drop the reference from the mbox */
|
|
|
|
if (vport->port_state == LPFC_FABRIC_CFG_LINK) {
|
|
vports = lpfc_create_vport_work_array(phba);
|
|
if (vports != NULL)
|
|
for(i = 0;
|
|
i <= phba->max_vpi && vports[i] != NULL;
|
|
i++) {
|
|
if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
|
|
continue;
|
|
if (phba->link_flag & LS_NPIV_FAB_SUPPORTED)
|
|
lpfc_initial_fdisc(vports[i]);
|
|
else if (phba->sli3_options &
|
|
LPFC_SLI3_NPIV_ENABLED) {
|
|
lpfc_vport_set_state(vports[i],
|
|
FC_VPORT_NO_FABRIC_SUPP);
|
|
lpfc_printf_vlog(vport, KERN_ERR,
|
|
LOG_ELS,
|
|
"0259 No NPIV "
|
|
"Fabric support\n");
|
|
}
|
|
}
|
|
lpfc_destroy_vport_work_array(phba, vports);
|
|
lpfc_do_scr_ns_plogi(phba, vport);
|
|
}
|
|
|
|
lpfc_mbuf_free(phba, mp->virt, mp->phys);
|
|
kfree(mp);
|
|
mempool_free(pmb, phba->mbox_mem_pool);
|
|
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->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;
|
|
|
|
if (mb->mbxStatus) {
|
|
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);
|
|
|
|
/* If no other thread is using the ndlp, free it */
|
|
lpfc_nlp_not_used(ndlp);
|
|
|
|
if (phba->fc_topology == 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);
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
|
|
"0260 Register NameServer error: 0x%x\n",
|
|
mb->mbxStatus);
|
|
return;
|
|
}
|
|
|
|
pmb->context1 = NULL;
|
|
|
|
ndlp->nlp_rpi = mb->un.varWords[0];
|
|
ndlp->nlp_type |= NLP_FABRIC;
|
|
lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
|
|
|
|
if (vport->port_state < LPFC_VPORT_READY) {
|
|
/* Link up discovery requires Fabric registration. */
|
|
lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, 0); /* Do this first! */
|
|
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);
|
|
|
|
/* 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.
|
|
*/
|
|
if (ndlp->rport && ndlp->rport->dd_data &&
|
|
((struct lpfc_rport_data *) ndlp->rport->dd_data)->pnode == ndlp) {
|
|
lpfc_nlp_put(ndlp);
|
|
}
|
|
|
|
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);
|
|
|
|
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);
|
|
|
|
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);
|
|
|
|
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:
|
|
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_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
|
|
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 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_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 &&
|
|
(ndlp->nlp_flag & NLP_DELAY_TMO) != 0 &&
|
|
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_dequeue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
|
|
{
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
|
|
if ((ndlp->nlp_flag & NLP_DELAY_TMO) != 0)
|
|
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);
|
|
}
|
|
|
|
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);
|
|
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 then edtov */
|
|
tmo = (((phba->fc_edtov + 999) / 1000) + 1);
|
|
} else {
|
|
/* Normal discovery timeout should be > then 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 + HZ * 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 (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi)
|
|
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;
|
|
IOCB_t *icmd;
|
|
uint32_t rpi, i;
|
|
|
|
lpfc_fabric_abort_nport(ndlp);
|
|
|
|
/*
|
|
* Everything that matches on txcmplq will be returned
|
|
* by firmware with a no rpi error.
|
|
*/
|
|
psli = &phba->sli;
|
|
rpi = ndlp->nlp_rpi;
|
|
if (rpi) {
|
|
/* 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);
|
|
pring->txq_cnt--;
|
|
}
|
|
}
|
|
spin_unlock_irq(&phba->hbalock);
|
|
}
|
|
}
|
|
|
|
while (!list_empty(&completions)) {
|
|
iocb = list_get_first(&completions, struct lpfc_iocbq, list);
|
|
list_del_init(&iocb->list);
|
|
|
|
if (!iocb->iocb_cmpl)
|
|
lpfc_sli_release_iocbq(phba, iocb);
|
|
else {
|
|
icmd = &iocb->iocb;
|
|
icmd->ulpStatus = IOSTAT_LOCAL_REJECT;
|
|
icmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
|
|
(iocb->iocb_cmpl)(phba, iocb, iocb);
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* 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;
|
|
|
|
if (ndlp->nlp_rpi) {
|
|
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (mbox) {
|
|
lpfc_unreg_login(phba, vport->vpi, ndlp->nlp_rpi, mbox);
|
|
mbox->vport = vport;
|
|
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);
|
|
}
|
|
lpfc_no_rpi(phba, ndlp);
|
|
ndlp->nlp_rpi = 0;
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
lpfc_unreg_all_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_login(phba, vport->vpi, 0xffff, 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_NOT_FINISHED) {
|
|
mempool_free(mbox, phba->mbox_mem_pool);
|
|
}
|
|
}
|
|
}
|
|
|
|
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, 0xffffffff, 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_NOT_FINISHED) {
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
|
|
"1815 Could not issue "
|
|
"unreg_did (default rpis)\n");
|
|
mempool_free(mbox, phba->mbox_mem_pool);
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* 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);
|
|
lpfc_dequeue_node(vport, ndlp);
|
|
|
|
/* cleanup any ndlp on mbox q waiting for reglogin cmpl */
|
|
if ((mb = phba->sli.mbox_active)) {
|
|
if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
|
|
(ndlp == (struct lpfc_nodelist *) mb->context2)) {
|
|
mb->context2 = NULL;
|
|
mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
|
|
}
|
|
}
|
|
|
|
spin_lock_irq(&phba->hbalock);
|
|
list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
|
|
if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
|
|
(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);
|
|
lpfc_nlp_put(ndlp);
|
|
}
|
|
}
|
|
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);
|
|
|
|
if (!list_empty(&ndlp->els_retry_evt.evt_listp))
|
|
list_del_init(&ndlp->els_retry_evt.evt_listp);
|
|
if (!list_empty(&ndlp->dev_loss_evt.evt_listp))
|
|
list_del_init(&ndlp->dev_loss_evt.evt_listp);
|
|
|
|
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;
|
|
LPFC_MBOXQ_t *mbox;
|
|
int rc;
|
|
|
|
if (ndlp->nlp_flag & NLP_DELAY_TMO) {
|
|
lpfc_cancel_retry_delay_tmo(vport, ndlp);
|
|
}
|
|
|
|
if (ndlp->nlp_flag & NLP_DEFER_RM && !ndlp->nlp_rpi) {
|
|
/* For this case we need to cleanup the default rpi
|
|
* allocated by the firmware.
|
|
*/
|
|
if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))
|
|
!= NULL) {
|
|
rc = lpfc_reg_login(phba, vport->vpi, ndlp->nlp_DID,
|
|
(uint8_t *) &vport->fc_sparam, mbox, 0);
|
|
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 = NULL;
|
|
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);
|
|
|
|
/*
|
|
* We can get here with a non-NULL ndlp->rport because when we
|
|
* unregister a rport we don't break the rport/node linkage. So if we
|
|
* do, make sure we don't leaving any dangling pointers behind.
|
|
*/
|
|
if (ndlp->rport) {
|
|
rdata = ndlp->rport->dd_data;
|
|
rdata->pnode = NULL;
|
|
ndlp->rport = NULL;
|
|
}
|
|
}
|
|
|
|
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;
|
|
|
|
if (ndlp->nlp_DID == 0) {
|
|
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)) {
|
|
if ((ndlpdid.un.b.domain == 0) &&
|
|
(ndlpdid.un.b.area == 0)) {
|
|
if (ndlpdid.un.b.id)
|
|
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\n",
|
|
ndlp, ndlp->nlp_DID,
|
|
ndlp->nlp_flag, data1);
|
|
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;
|
|
|
|
spin_lock_irq(shost->host_lock);
|
|
ndlp = __lpfc_findnode_did(vport, did);
|
|
spin_unlock_irq(shost->host_lock);
|
|
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;
|
|
}
|
|
if (vport->fc_flag & FC_RSCN_MODE) {
|
|
if (lpfc_rscn_payload_check(vport, did)) {
|
|
/* If we've already recieved a PLOGI from this NPort
|
|
* we don't need to try to discover it again.
|
|
*/
|
|
if (ndlp->nlp_flag & NLP_RCV_PLOGI)
|
|
return NULL;
|
|
|
|
spin_lock_irq(shost->host_lock);
|
|
ndlp->nlp_flag |= NLP_NPR_2B_DISC;
|
|
spin_unlock_irq(shost->host_lock);
|
|
|
|
/* Since this node is marked for discovery,
|
|
* delay timeout is not needed.
|
|
*/
|
|
if (ndlp->nlp_flag & NLP_DELAY_TMO)
|
|
lpfc_cancel_retry_delay_tmo(vport, ndlp);
|
|
} else
|
|
ndlp = NULL;
|
|
} else {
|
|
/* If we've already recieved 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 != 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))
|
|
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(phba, vport->vpi, vport->fc_myDID, 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;
|
|
int did_changed;
|
|
|
|
if (!lpfc_is_link_up(phba))
|
|
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);
|
|
|
|
if (vport->fc_prevDID == vport->fc_myDID)
|
|
did_changed = 0;
|
|
else
|
|
did_changed = 1;
|
|
|
|
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;
|
|
|
|
/*
|
|
* For SLI3, cmpl_reg_vpi will set port_state to READY, and
|
|
* continue discovery.
|
|
*/
|
|
if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
|
|
!(vport->fc_flag & FC_RSCN_MODE)) {
|
|
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 */
|
|
if (vport->port_type == LPFC_PHYSICAL_PORT)
|
|
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);
|
|
pring->txq_cnt--;
|
|
}
|
|
}
|
|
|
|
/* 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);
|
|
|
|
while (!list_empty(&completions)) {
|
|
iocb = list_get_first(&completions, struct lpfc_iocbq, list);
|
|
list_del_init(&iocb->list);
|
|
|
|
if (!iocb->iocb_cmpl)
|
|
lpfc_sli_release_iocbq(phba, iocb);
|
|
else {
|
|
icmd = &iocb->iocb;
|
|
icmd->ulpStatus = IOSTAT_LOCAL_REJECT;
|
|
icmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
|
|
(iocb->iocb_cmpl) (phba, iocb, iocb);
|
|
}
|
|
}
|
|
}
|
|
|
|
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 (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;
|
|
unsigned long flags = 0;
|
|
|
|
if (unlikely(!phba))
|
|
return;
|
|
|
|
if ((vport->work_port_events & WORKER_DISC_TMO) == 0) {
|
|
spin_lock_irqsave(&vport->work_port_lock, flags);
|
|
vport->work_port_events |= WORKER_DISC_TMO;
|
|
spin_unlock_irqrestore(&vport->work_port_lock, flags);
|
|
|
|
spin_lock_irqsave(&phba->hbalock, flags);
|
|
if (phba->work_wait)
|
|
lpfc_worker_wake_up(phba);
|
|
spin_unlock_irqrestore(&phba->hbalock, flags);
|
|
}
|
|
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 (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) {
|
|
lpfc_initial_flogi(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)
|
|
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->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;
|
|
}
|
|
|
|
/* 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->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->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,
|
|
"0229 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->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;
|
|
|
|
ndlp->nlp_rpi = mb->un.varWords[0];
|
|
ndlp->nlp_type |= NLP_FABRIC;
|
|
lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
|
|
|
|
/*
|
|
* 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 == 1)
|
|
lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA);
|
|
else
|
|
mod_timer(&vport->fc_fdmitmo, jiffies + HZ * 60);
|
|
|
|
/* 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;
|
|
|
|
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))
|
|
return ndlp;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
#if 0
|
|
/*
|
|
* Search node lists for a remote port matching filter criteria
|
|
* Caller needs to hold host_lock before calling this routine.
|
|
*/
|
|
struct lpfc_nodelist *
|
|
lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param)
|
|
{
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
struct lpfc_nodelist *ndlp;
|
|
|
|
spin_lock_irq(shost->host_lock);
|
|
ndlp = __lpfc_find_node(vport, filter, param);
|
|
spin_unlock_irq(shost->host_lock);
|
|
return ndlp;
|
|
}
|
|
#endif /* 0 */
|
|
|
|
/*
|
|
* 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);
|
|
}
|
|
|
|
#if 0
|
|
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;
|
|
}
|
|
#endif /* 0 */
|
|
|
|
/*
|
|
* 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;
|
|
}
|
|
|
|
void
|
|
lpfc_nlp_init(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
|
|
uint32_t did)
|
|
{
|
|
memset(ndlp, 0, sizeof (struct lpfc_nodelist));
|
|
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->nlp_sid = NLP_NO_SID;
|
|
INIT_LIST_HEAD(&ndlp->nlp_listp);
|
|
kref_init(&ndlp->kref);
|
|
|
|
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_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_nlp_remove(ndlp->vport, ndlp);
|
|
mempool_free(ndlp, ndlp->vport->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)
|
|
{
|
|
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));
|
|
kref_get(&ndlp->kref);
|
|
}
|
|
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.
|
|
*/
|
|
int
|
|
lpfc_nlp_put(struct lpfc_nodelist *ndlp)
|
|
{
|
|
if (ndlp) {
|
|
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));
|
|
}
|
|
return ndlp ? kref_put(&ndlp->kref, lpfc_nlp_release) : 0;
|
|
}
|
|
|
|
/* 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
|
|
* is not being used by anyone and has been freed. A return value of
|
|
* 0 indicates it is being used by another discovery thread and the
|
|
* refcount is left unchanged.
|
|
*/
|
|
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) {
|
|
lpfc_nlp_put(ndlp);
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|