mirror of https://gitee.com/openkylin/linux.git
9092 lines
286 KiB
C
9092 lines
286 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) 2004-2016 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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/* See Fibre Channel protocol T11 FC-LS for details */
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#include <linux/blkdev.h>
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#include <linux/pci.h>
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#include <linux/slab.h>
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#include <linux/interrupt.h>
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#include <scsi/scsi.h>
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#include <scsi/scsi_device.h>
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#include <scsi/scsi_host.h>
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#include <scsi/scsi_transport_fc.h>
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#include "lpfc_hw4.h"
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#include "lpfc_hw.h"
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#include "lpfc_sli.h"
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#include "lpfc_sli4.h"
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#include "lpfc_nl.h"
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#include "lpfc_disc.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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static int lpfc_els_retry(struct lpfc_hba *, struct lpfc_iocbq *,
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struct lpfc_iocbq *);
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static void lpfc_cmpl_fabric_iocb(struct lpfc_hba *, struct lpfc_iocbq *,
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struct lpfc_iocbq *);
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static void lpfc_fabric_abort_vport(struct lpfc_vport *vport);
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static int lpfc_issue_els_fdisc(struct lpfc_vport *vport,
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struct lpfc_nodelist *ndlp, uint8_t retry);
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static int lpfc_issue_fabric_iocb(struct lpfc_hba *phba,
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struct lpfc_iocbq *iocb);
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static int lpfc_max_els_tries = 3;
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/**
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* lpfc_els_chk_latt - Check host link attention event for a vport
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* @vport: pointer to a host virtual N_Port data structure.
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*
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* This routine checks whether there is an outstanding host link
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* attention event during the discovery process with the @vport. It is done
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* by reading the HBA's Host Attention (HA) register. If there is any host
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* link attention events during this @vport's discovery process, the @vport
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* shall be marked as FC_ABORT_DISCOVERY, a host link attention clear shall
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* be issued if the link state is not already in host link cleared state,
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* and a return code shall indicate whether the host link attention event
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* had happened.
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*
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* Note that, if either the host link is in state LPFC_LINK_DOWN or @vport
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* state in LPFC_VPORT_READY, the request for checking host link attention
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* event will be ignored and a return code shall indicate no host link
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* attention event had happened.
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*
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* Return codes
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* 0 - no host link attention event happened
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* 1 - host link attention event happened
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**/
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int
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lpfc_els_chk_latt(struct lpfc_vport *vport)
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{
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struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
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struct lpfc_hba *phba = vport->phba;
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uint32_t ha_copy;
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if (vport->port_state >= LPFC_VPORT_READY ||
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phba->link_state == LPFC_LINK_DOWN ||
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phba->sli_rev > LPFC_SLI_REV3)
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return 0;
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/* Read the HBA Host Attention Register */
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if (lpfc_readl(phba->HAregaddr, &ha_copy))
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return 1;
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if (!(ha_copy & HA_LATT))
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return 0;
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/* Pending Link Event during Discovery */
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lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
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"0237 Pending Link Event during "
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"Discovery: State x%x\n",
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phba->pport->port_state);
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/* CLEAR_LA should re-enable link attention events and
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* we should then immediately take a LATT event. The
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* LATT processing should call lpfc_linkdown() which
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* will cleanup any left over in-progress discovery
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* events.
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*/
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spin_lock_irq(shost->host_lock);
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vport->fc_flag |= FC_ABORT_DISCOVERY;
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spin_unlock_irq(shost->host_lock);
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if (phba->link_state != LPFC_CLEAR_LA)
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lpfc_issue_clear_la(phba, vport);
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return 1;
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}
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/**
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* lpfc_prep_els_iocb - Allocate and prepare a lpfc iocb data structure
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* @vport: pointer to a host virtual N_Port data structure.
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* @expectRsp: flag indicating whether response is expected.
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* @cmdSize: size of the ELS command.
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* @retry: number of retries to the command IOCB when it fails.
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* @ndlp: pointer to a node-list data structure.
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* @did: destination identifier.
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* @elscmd: the ELS command code.
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*
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* This routine is used for allocating a lpfc-IOCB data structure from
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* the driver lpfc-IOCB free-list and prepare the IOCB with the parameters
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* passed into the routine for discovery state machine to issue an Extended
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* Link Service (ELS) commands. It is a generic lpfc-IOCB allocation
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* and preparation routine that is used by all the discovery state machine
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* routines and the ELS command-specific fields will be later set up by
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* the individual discovery machine routines after calling this routine
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* allocating and preparing a generic IOCB data structure. It fills in the
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* Buffer Descriptor Entries (BDEs), allocates buffers for both command
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* payload and response payload (if expected). The reference count on the
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* ndlp is incremented by 1 and the reference to the ndlp is put into
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* context1 of the IOCB data structure for this IOCB to hold the ndlp
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* reference for the command's callback function to access later.
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*
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* Return code
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* Pointer to the newly allocated/prepared els iocb data structure
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* NULL - when els iocb data structure allocation/preparation failed
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**/
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struct lpfc_iocbq *
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lpfc_prep_els_iocb(struct lpfc_vport *vport, uint8_t expectRsp,
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uint16_t cmdSize, uint8_t retry,
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struct lpfc_nodelist *ndlp, uint32_t did,
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uint32_t elscmd)
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{
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struct lpfc_hba *phba = vport->phba;
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struct lpfc_iocbq *elsiocb;
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struct lpfc_dmabuf *pcmd, *prsp, *pbuflist;
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struct ulp_bde64 *bpl;
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IOCB_t *icmd;
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if (!lpfc_is_link_up(phba))
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return NULL;
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/* Allocate buffer for command iocb */
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elsiocb = lpfc_sli_get_iocbq(phba);
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if (elsiocb == NULL)
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return NULL;
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/*
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* If this command is for fabric controller and HBA running
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* in FIP mode send FLOGI, FDISC and LOGO as FIP frames.
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*/
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if ((did == Fabric_DID) &&
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(phba->hba_flag & HBA_FIP_SUPPORT) &&
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((elscmd == ELS_CMD_FLOGI) ||
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(elscmd == ELS_CMD_FDISC) ||
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(elscmd == ELS_CMD_LOGO)))
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switch (elscmd) {
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case ELS_CMD_FLOGI:
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elsiocb->iocb_flag |=
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((LPFC_ELS_ID_FLOGI << LPFC_FIP_ELS_ID_SHIFT)
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& LPFC_FIP_ELS_ID_MASK);
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break;
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case ELS_CMD_FDISC:
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elsiocb->iocb_flag |=
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((LPFC_ELS_ID_FDISC << LPFC_FIP_ELS_ID_SHIFT)
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& LPFC_FIP_ELS_ID_MASK);
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break;
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case ELS_CMD_LOGO:
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elsiocb->iocb_flag |=
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((LPFC_ELS_ID_LOGO << LPFC_FIP_ELS_ID_SHIFT)
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& LPFC_FIP_ELS_ID_MASK);
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break;
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}
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else
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elsiocb->iocb_flag &= ~LPFC_FIP_ELS_ID_MASK;
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icmd = &elsiocb->iocb;
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/* fill in BDEs for command */
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/* Allocate buffer for command payload */
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pcmd = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
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if (pcmd)
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pcmd->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &pcmd->phys);
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if (!pcmd || !pcmd->virt)
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goto els_iocb_free_pcmb_exit;
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INIT_LIST_HEAD(&pcmd->list);
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/* Allocate buffer for response payload */
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if (expectRsp) {
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prsp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
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if (prsp)
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prsp->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
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&prsp->phys);
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if (!prsp || !prsp->virt)
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goto els_iocb_free_prsp_exit;
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INIT_LIST_HEAD(&prsp->list);
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} else
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prsp = NULL;
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/* Allocate buffer for Buffer ptr list */
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pbuflist = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
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if (pbuflist)
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pbuflist->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
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&pbuflist->phys);
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if (!pbuflist || !pbuflist->virt)
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goto els_iocb_free_pbuf_exit;
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INIT_LIST_HEAD(&pbuflist->list);
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if (expectRsp) {
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icmd->un.elsreq64.bdl.addrHigh = putPaddrHigh(pbuflist->phys);
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icmd->un.elsreq64.bdl.addrLow = putPaddrLow(pbuflist->phys);
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icmd->un.elsreq64.bdl.bdeFlags = BUFF_TYPE_BLP_64;
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icmd->un.elsreq64.bdl.bdeSize = (2 * sizeof(struct ulp_bde64));
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icmd->un.elsreq64.remoteID = did; /* DID */
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icmd->ulpCommand = CMD_ELS_REQUEST64_CR;
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if (elscmd == ELS_CMD_FLOGI)
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icmd->ulpTimeout = FF_DEF_RATOV * 2;
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else
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icmd->ulpTimeout = phba->fc_ratov * 2;
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} else {
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icmd->un.xseq64.bdl.addrHigh = putPaddrHigh(pbuflist->phys);
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icmd->un.xseq64.bdl.addrLow = putPaddrLow(pbuflist->phys);
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icmd->un.xseq64.bdl.bdeFlags = BUFF_TYPE_BLP_64;
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icmd->un.xseq64.bdl.bdeSize = sizeof(struct ulp_bde64);
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icmd->un.xseq64.xmit_els_remoteID = did; /* DID */
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icmd->ulpCommand = CMD_XMIT_ELS_RSP64_CX;
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}
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icmd->ulpBdeCount = 1;
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icmd->ulpLe = 1;
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icmd->ulpClass = CLASS3;
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/*
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* If we have NPIV enabled, we want to send ELS traffic by VPI.
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* For SLI4, since the driver controls VPIs we also want to include
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* all ELS pt2pt protocol traffic as well.
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*/
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if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) ||
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((phba->sli_rev == LPFC_SLI_REV4) &&
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(vport->fc_flag & FC_PT2PT))) {
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if (expectRsp) {
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icmd->un.elsreq64.myID = vport->fc_myDID;
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/* For ELS_REQUEST64_CR, use the VPI by default */
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icmd->ulpContext = phba->vpi_ids[vport->vpi];
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}
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icmd->ulpCt_h = 0;
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/* The CT field must be 0=INVALID_RPI for the ECHO cmd */
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if (elscmd == ELS_CMD_ECHO)
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icmd->ulpCt_l = 0; /* context = invalid RPI */
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else
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icmd->ulpCt_l = 1; /* context = VPI */
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}
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bpl = (struct ulp_bde64 *) pbuflist->virt;
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bpl->addrLow = le32_to_cpu(putPaddrLow(pcmd->phys));
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bpl->addrHigh = le32_to_cpu(putPaddrHigh(pcmd->phys));
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bpl->tus.f.bdeSize = cmdSize;
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bpl->tus.f.bdeFlags = 0;
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bpl->tus.w = le32_to_cpu(bpl->tus.w);
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if (expectRsp) {
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bpl++;
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bpl->addrLow = le32_to_cpu(putPaddrLow(prsp->phys));
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bpl->addrHigh = le32_to_cpu(putPaddrHigh(prsp->phys));
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bpl->tus.f.bdeSize = FCELSSIZE;
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bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64;
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bpl->tus.w = le32_to_cpu(bpl->tus.w);
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}
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/* prevent preparing iocb with NULL ndlp reference */
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elsiocb->context1 = lpfc_nlp_get(ndlp);
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if (!elsiocb->context1)
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goto els_iocb_free_pbuf_exit;
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elsiocb->context2 = pcmd;
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elsiocb->context3 = pbuflist;
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elsiocb->retry = retry;
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elsiocb->vport = vport;
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elsiocb->drvrTimeout = (phba->fc_ratov << 1) + LPFC_DRVR_TIMEOUT;
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if (prsp) {
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list_add(&prsp->list, &pcmd->list);
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}
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if (expectRsp) {
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/* Xmit ELS command <elsCmd> to remote NPORT <did> */
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lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
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"0116 Xmit ELS command x%x to remote "
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"NPORT x%x I/O tag: x%x, port state:x%x"
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" fc_flag:x%x\n",
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elscmd, did, elsiocb->iotag,
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vport->port_state,
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vport->fc_flag);
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} else {
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/* Xmit ELS response <elsCmd> to remote NPORT <did> */
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lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
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"0117 Xmit ELS response x%x to remote "
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"NPORT x%x I/O tag: x%x, size: x%x "
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"port_state x%x fc_flag x%x\n",
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elscmd, ndlp->nlp_DID, elsiocb->iotag,
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cmdSize, vport->port_state,
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vport->fc_flag);
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}
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return elsiocb;
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els_iocb_free_pbuf_exit:
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if (expectRsp)
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lpfc_mbuf_free(phba, prsp->virt, prsp->phys);
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kfree(pbuflist);
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els_iocb_free_prsp_exit:
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lpfc_mbuf_free(phba, pcmd->virt, pcmd->phys);
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kfree(prsp);
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els_iocb_free_pcmb_exit:
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kfree(pcmd);
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lpfc_sli_release_iocbq(phba, elsiocb);
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return NULL;
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}
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|
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/**
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* lpfc_issue_fabric_reglogin - Issue fabric registration login for a vport
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* @vport: pointer to a host virtual N_Port data structure.
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*
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* This routine issues a fabric registration login for a @vport. An
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* active ndlp node with Fabric_DID must already exist for this @vport.
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* The routine invokes two mailbox commands to carry out fabric registration
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* login through the HBA firmware: the first mailbox command requests the
|
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* HBA to perform link configuration for the @vport; and the second mailbox
|
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* command requests the HBA to perform the actual fabric registration login
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* with the @vport.
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*
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* Return code
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* 0 - successfully issued fabric registration login for @vport
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* -ENXIO -- failed to issue fabric registration login for @vport
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**/
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int
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lpfc_issue_fabric_reglogin(struct lpfc_vport *vport)
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{
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struct lpfc_hba *phba = vport->phba;
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LPFC_MBOXQ_t *mbox;
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struct lpfc_dmabuf *mp;
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struct lpfc_nodelist *ndlp;
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struct serv_parm *sp;
|
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int rc;
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int err = 0;
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|
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sp = &phba->fc_fabparam;
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ndlp = lpfc_findnode_did(vport, Fabric_DID);
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if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
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err = 1;
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goto fail;
|
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}
|
|
|
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mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
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if (!mbox) {
|
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err = 2;
|
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goto fail;
|
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}
|
|
|
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vport->port_state = LPFC_FABRIC_CFG_LINK;
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lpfc_config_link(phba, mbox);
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mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
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mbox->vport = vport;
|
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|
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rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
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if (rc == MBX_NOT_FINISHED) {
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err = 3;
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goto fail_free_mbox;
|
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}
|
|
|
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mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
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if (!mbox) {
|
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err = 4;
|
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goto fail;
|
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}
|
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rc = lpfc_reg_rpi(phba, vport->vpi, Fabric_DID, (uint8_t *)sp, mbox,
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ndlp->nlp_rpi);
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if (rc) {
|
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err = 5;
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goto fail_free_mbox;
|
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}
|
|
|
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mbox->mbox_cmpl = lpfc_mbx_cmpl_fabric_reg_login;
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mbox->vport = vport;
|
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/* increment the reference count on ndlp to hold reference
|
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* for the callback routine.
|
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*/
|
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mbox->context2 = lpfc_nlp_get(ndlp);
|
|
|
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rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
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if (rc == MBX_NOT_FINISHED) {
|
|
err = 6;
|
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goto fail_issue_reg_login;
|
|
}
|
|
|
|
return 0;
|
|
|
|
fail_issue_reg_login:
|
|
/* decrement the reference count on ndlp just incremented
|
|
* for the failed mbox command.
|
|
*/
|
|
lpfc_nlp_put(ndlp);
|
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mp = (struct lpfc_dmabuf *) mbox->context1;
|
|
lpfc_mbuf_free(phba, mp->virt, mp->phys);
|
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kfree(mp);
|
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fail_free_mbox:
|
|
mempool_free(mbox, phba->mbox_mem_pool);
|
|
|
|
fail:
|
|
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
|
|
"0249 Cannot issue Register Fabric login: Err %d\n", err);
|
|
return -ENXIO;
|
|
}
|
|
|
|
/**
|
|
* lpfc_issue_reg_vfi - Register VFI for this vport's fabric login
|
|
* @vport: pointer to a host virtual N_Port data structure.
|
|
*
|
|
* This routine issues a REG_VFI mailbox for the vfi, vpi, fcfi triplet for
|
|
* the @vport. This mailbox command is necessary for SLI4 port only.
|
|
*
|
|
* Return code
|
|
* 0 - successfully issued REG_VFI for @vport
|
|
* A failure code otherwise.
|
|
**/
|
|
int
|
|
lpfc_issue_reg_vfi(struct lpfc_vport *vport)
|
|
{
|
|
struct lpfc_hba *phba = vport->phba;
|
|
LPFC_MBOXQ_t *mboxq = NULL;
|
|
struct lpfc_nodelist *ndlp;
|
|
struct lpfc_dmabuf *dmabuf = NULL;
|
|
int rc = 0;
|
|
|
|
/* move forward in case of SLI4 FC port loopback test and pt2pt mode */
|
|
if ((phba->sli_rev == LPFC_SLI_REV4) &&
|
|
!(phba->link_flag & LS_LOOPBACK_MODE) &&
|
|
!(vport->fc_flag & FC_PT2PT)) {
|
|
ndlp = lpfc_findnode_did(vport, Fabric_DID);
|
|
if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
|
|
rc = -ENODEV;
|
|
goto fail;
|
|
}
|
|
}
|
|
|
|
mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (!mboxq) {
|
|
rc = -ENOMEM;
|
|
goto fail;
|
|
}
|
|
|
|
/* Supply CSP's only if we are fabric connect or pt-to-pt connect */
|
|
if ((vport->fc_flag & FC_FABRIC) || (vport->fc_flag & FC_PT2PT)) {
|
|
dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
|
|
if (!dmabuf) {
|
|
rc = -ENOMEM;
|
|
goto fail;
|
|
}
|
|
dmabuf->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &dmabuf->phys);
|
|
if (!dmabuf->virt) {
|
|
rc = -ENOMEM;
|
|
goto fail;
|
|
}
|
|
memcpy(dmabuf->virt, &phba->fc_fabparam,
|
|
sizeof(struct serv_parm));
|
|
}
|
|
|
|
vport->port_state = LPFC_FABRIC_CFG_LINK;
|
|
if (dmabuf)
|
|
lpfc_reg_vfi(mboxq, vport, dmabuf->phys);
|
|
else
|
|
lpfc_reg_vfi(mboxq, vport, 0);
|
|
|
|
mboxq->mbox_cmpl = lpfc_mbx_cmpl_reg_vfi;
|
|
mboxq->vport = vport;
|
|
mboxq->context1 = dmabuf;
|
|
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
|
|
if (rc == MBX_NOT_FINISHED) {
|
|
rc = -ENXIO;
|
|
goto fail;
|
|
}
|
|
return 0;
|
|
|
|
fail:
|
|
if (mboxq)
|
|
mempool_free(mboxq, phba->mbox_mem_pool);
|
|
if (dmabuf) {
|
|
if (dmabuf->virt)
|
|
lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys);
|
|
kfree(dmabuf);
|
|
}
|
|
|
|
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
|
|
"0289 Issue Register VFI failed: Err %d\n", rc);
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_issue_unreg_vfi - Unregister VFI for this vport's fabric login
|
|
* @vport: pointer to a host virtual N_Port data structure.
|
|
*
|
|
* This routine issues a UNREG_VFI mailbox with the vfi, vpi, fcfi triplet for
|
|
* the @vport. This mailbox command is necessary for SLI4 port only.
|
|
*
|
|
* Return code
|
|
* 0 - successfully issued REG_VFI for @vport
|
|
* A failure code otherwise.
|
|
**/
|
|
int
|
|
lpfc_issue_unreg_vfi(struct lpfc_vport *vport)
|
|
{
|
|
struct lpfc_hba *phba = vport->phba;
|
|
struct Scsi_Host *shost;
|
|
LPFC_MBOXQ_t *mboxq;
|
|
int rc;
|
|
|
|
mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (!mboxq) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
|
|
"2556 UNREG_VFI mbox allocation failed"
|
|
"HBA state x%x\n", phba->pport->port_state);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
lpfc_unreg_vfi(mboxq, vport);
|
|
mboxq->vport = vport;
|
|
mboxq->mbox_cmpl = lpfc_unregister_vfi_cmpl;
|
|
|
|
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
|
|
if (rc == MBX_NOT_FINISHED) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
|
|
"2557 UNREG_VFI issue mbox failed rc x%x "
|
|
"HBA state x%x\n",
|
|
rc, phba->pport->port_state);
|
|
mempool_free(mboxq, phba->mbox_mem_pool);
|
|
return -EIO;
|
|
}
|
|
|
|
shost = lpfc_shost_from_vport(vport);
|
|
spin_lock_irq(shost->host_lock);
|
|
vport->fc_flag &= ~FC_VFI_REGISTERED;
|
|
spin_unlock_irq(shost->host_lock);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_check_clean_addr_bit - Check whether assigned FCID is clean.
|
|
* @vport: pointer to a host virtual N_Port data structure.
|
|
* @sp: pointer to service parameter data structure.
|
|
*
|
|
* This routine is called from FLOGI/FDISC completion handler functions.
|
|
* lpfc_check_clean_addr_bit return 1 when FCID/Fabric portname/ Fabric
|
|
* node nodename is changed in the completion service parameter else return
|
|
* 0. This function also set flag in the vport data structure to delay
|
|
* NP_Port discovery after the FLOGI/FDISC completion if Clean address bit
|
|
* in FLOGI/FDISC response is cleared and FCID/Fabric portname/ Fabric
|
|
* node nodename is changed in the completion service parameter.
|
|
*
|
|
* Return code
|
|
* 0 - FCID and Fabric Nodename and Fabric portname is not changed.
|
|
* 1 - FCID or Fabric Nodename or Fabric portname is changed.
|
|
*
|
|
**/
|
|
static uint8_t
|
|
lpfc_check_clean_addr_bit(struct lpfc_vport *vport,
|
|
struct serv_parm *sp)
|
|
{
|
|
uint8_t fabric_param_changed = 0;
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
|
|
if ((vport->fc_prevDID != vport->fc_myDID) ||
|
|
memcmp(&vport->fabric_portname, &sp->portName,
|
|
sizeof(struct lpfc_name)) ||
|
|
memcmp(&vport->fabric_nodename, &sp->nodeName,
|
|
sizeof(struct lpfc_name)))
|
|
fabric_param_changed = 1;
|
|
|
|
/*
|
|
* Word 1 Bit 31 in common service parameter is overloaded.
|
|
* Word 1 Bit 31 in FLOGI request is multiple NPort request
|
|
* Word 1 Bit 31 in FLOGI response is clean address bit
|
|
*
|
|
* If fabric parameter is changed and clean address bit is
|
|
* cleared delay nport discovery if
|
|
* - vport->fc_prevDID != 0 (not initial discovery) OR
|
|
* - lpfc_delay_discovery module parameter is set.
|
|
*/
|
|
if (fabric_param_changed && !sp->cmn.clean_address_bit &&
|
|
(vport->fc_prevDID || lpfc_delay_discovery)) {
|
|
spin_lock_irq(shost->host_lock);
|
|
vport->fc_flag |= FC_DISC_DELAYED;
|
|
spin_unlock_irq(shost->host_lock);
|
|
}
|
|
|
|
return fabric_param_changed;
|
|
}
|
|
|
|
|
|
/**
|
|
* lpfc_cmpl_els_flogi_fabric - Completion function for flogi to a fabric port
|
|
* @vport: pointer to a host virtual N_Port data structure.
|
|
* @ndlp: pointer to a node-list data structure.
|
|
* @sp: pointer to service parameter data structure.
|
|
* @irsp: pointer to the IOCB within the lpfc response IOCB.
|
|
*
|
|
* This routine is invoked by the lpfc_cmpl_els_flogi() completion callback
|
|
* function to handle the completion of a Fabric Login (FLOGI) into a fabric
|
|
* port in a fabric topology. It properly sets up the parameters to the @ndlp
|
|
* from the IOCB response. It also check the newly assigned N_Port ID to the
|
|
* @vport against the previously assigned N_Port ID. If it is different from
|
|
* the previously assigned Destination ID (DID), the lpfc_unreg_rpi() routine
|
|
* is invoked on all the remaining nodes with the @vport to unregister the
|
|
* Remote Port Indicators (RPIs). Finally, the lpfc_issue_fabric_reglogin()
|
|
* is invoked to register login to the fabric.
|
|
*
|
|
* Return code
|
|
* 0 - Success (currently, always return 0)
|
|
**/
|
|
static int
|
|
lpfc_cmpl_els_flogi_fabric(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
|
|
struct serv_parm *sp, IOCB_t *irsp)
|
|
{
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
struct lpfc_hba *phba = vport->phba;
|
|
struct lpfc_nodelist *np;
|
|
struct lpfc_nodelist *next_np;
|
|
uint8_t fabric_param_changed;
|
|
|
|
spin_lock_irq(shost->host_lock);
|
|
vport->fc_flag |= FC_FABRIC;
|
|
spin_unlock_irq(shost->host_lock);
|
|
|
|
phba->fc_edtov = be32_to_cpu(sp->cmn.e_d_tov);
|
|
if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */
|
|
phba->fc_edtov = (phba->fc_edtov + 999999) / 1000000;
|
|
|
|
phba->fc_edtovResol = sp->cmn.edtovResolution;
|
|
phba->fc_ratov = (be32_to_cpu(sp->cmn.w2.r_a_tov) + 999) / 1000;
|
|
|
|
if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
|
|
spin_lock_irq(shost->host_lock);
|
|
vport->fc_flag |= FC_PUBLIC_LOOP;
|
|
spin_unlock_irq(shost->host_lock);
|
|
}
|
|
|
|
vport->fc_myDID = irsp->un.ulpWord[4] & Mask_DID;
|
|
memcpy(&ndlp->nlp_portname, &sp->portName, sizeof(struct lpfc_name));
|
|
memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof(struct lpfc_name));
|
|
ndlp->nlp_class_sup = 0;
|
|
if (sp->cls1.classValid)
|
|
ndlp->nlp_class_sup |= FC_COS_CLASS1;
|
|
if (sp->cls2.classValid)
|
|
ndlp->nlp_class_sup |= FC_COS_CLASS2;
|
|
if (sp->cls3.classValid)
|
|
ndlp->nlp_class_sup |= FC_COS_CLASS3;
|
|
if (sp->cls4.classValid)
|
|
ndlp->nlp_class_sup |= FC_COS_CLASS4;
|
|
ndlp->nlp_maxframe = ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) |
|
|
sp->cmn.bbRcvSizeLsb;
|
|
|
|
fabric_param_changed = lpfc_check_clean_addr_bit(vport, sp);
|
|
if (fabric_param_changed) {
|
|
/* Reset FDMI attribute masks based on config parameter */
|
|
if (phba->cfg_enable_SmartSAN ||
|
|
(phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) {
|
|
/* Setup appropriate attribute masks */
|
|
vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR;
|
|
if (phba->cfg_enable_SmartSAN)
|
|
vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR;
|
|
else
|
|
vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
|
|
} else {
|
|
vport->fdmi_hba_mask = 0;
|
|
vport->fdmi_port_mask = 0;
|
|
}
|
|
|
|
}
|
|
memcpy(&vport->fabric_portname, &sp->portName,
|
|
sizeof(struct lpfc_name));
|
|
memcpy(&vport->fabric_nodename, &sp->nodeName,
|
|
sizeof(struct lpfc_name));
|
|
memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm));
|
|
|
|
if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) {
|
|
if (sp->cmn.response_multiple_NPort) {
|
|
lpfc_printf_vlog(vport, KERN_WARNING,
|
|
LOG_ELS | LOG_VPORT,
|
|
"1816 FLOGI NPIV supported, "
|
|
"response data 0x%x\n",
|
|
sp->cmn.response_multiple_NPort);
|
|
spin_lock_irq(&phba->hbalock);
|
|
phba->link_flag |= LS_NPIV_FAB_SUPPORTED;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
} else {
|
|
/* Because we asked f/w for NPIV it still expects us
|
|
to call reg_vnpid atleast for the physcial host */
|
|
lpfc_printf_vlog(vport, KERN_WARNING,
|
|
LOG_ELS | LOG_VPORT,
|
|
"1817 Fabric does not support NPIV "
|
|
"- configuring single port mode.\n");
|
|
spin_lock_irq(&phba->hbalock);
|
|
phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* For FC we need to do some special processing because of the SLI
|
|
* Port's default settings of the Common Service Parameters.
|
|
*/
|
|
if ((phba->sli_rev == LPFC_SLI_REV4) &&
|
|
(phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_FC)) {
|
|
/* If physical FC port changed, unreg VFI and ALL VPIs / RPIs */
|
|
if (fabric_param_changed)
|
|
lpfc_unregister_fcf_prep(phba);
|
|
|
|
/* This should just update the VFI CSPs*/
|
|
if (vport->fc_flag & FC_VFI_REGISTERED)
|
|
lpfc_issue_reg_vfi(vport);
|
|
}
|
|
|
|
if (fabric_param_changed &&
|
|
!(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) {
|
|
|
|
/* If our NportID changed, we need to ensure all
|
|
* remaining NPORTs get unreg_login'ed.
|
|
*/
|
|
list_for_each_entry_safe(np, next_np,
|
|
&vport->fc_nodes, nlp_listp) {
|
|
if (!NLP_CHK_NODE_ACT(np))
|
|
continue;
|
|
if ((np->nlp_state != NLP_STE_NPR_NODE) ||
|
|
!(np->nlp_flag & NLP_NPR_ADISC))
|
|
continue;
|
|
spin_lock_irq(shost->host_lock);
|
|
np->nlp_flag &= ~NLP_NPR_ADISC;
|
|
spin_unlock_irq(shost->host_lock);
|
|
lpfc_unreg_rpi(vport, np);
|
|
}
|
|
lpfc_cleanup_pending_mbox(vport);
|
|
|
|
if (phba->sli_rev == LPFC_SLI_REV4) {
|
|
lpfc_sli4_unreg_all_rpis(vport);
|
|
lpfc_mbx_unreg_vpi(vport);
|
|
spin_lock_irq(shost->host_lock);
|
|
vport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
|
|
spin_unlock_irq(shost->host_lock);
|
|
}
|
|
|
|
/*
|
|
* For SLI3 and SLI4, the VPI needs to be reregistered in
|
|
* response to this fabric parameter change event.
|
|
*/
|
|
spin_lock_irq(shost->host_lock);
|
|
vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
|
|
spin_unlock_irq(shost->host_lock);
|
|
} else if ((phba->sli_rev == LPFC_SLI_REV4) &&
|
|
!(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) {
|
|
/*
|
|
* Driver needs to re-reg VPI in order for f/w
|
|
* to update the MAC address.
|
|
*/
|
|
lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
|
|
lpfc_register_new_vport(phba, vport, ndlp);
|
|
return 0;
|
|
}
|
|
|
|
if (phba->sli_rev < LPFC_SLI_REV4) {
|
|
lpfc_nlp_set_state(vport, ndlp, NLP_STE_REG_LOGIN_ISSUE);
|
|
if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED &&
|
|
vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)
|
|
lpfc_register_new_vport(phba, vport, ndlp);
|
|
else
|
|
lpfc_issue_fabric_reglogin(vport);
|
|
} else {
|
|
ndlp->nlp_type |= NLP_FABRIC;
|
|
lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
|
|
if ((!(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) &&
|
|
(vport->vpi_state & LPFC_VPI_REGISTERED)) {
|
|
lpfc_start_fdiscs(phba);
|
|
lpfc_do_scr_ns_plogi(phba, vport);
|
|
} else if (vport->fc_flag & FC_VFI_REGISTERED)
|
|
lpfc_issue_init_vpi(vport);
|
|
else {
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
|
|
"3135 Need register VFI: (x%x/%x)\n",
|
|
vport->fc_prevDID, vport->fc_myDID);
|
|
lpfc_issue_reg_vfi(vport);
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_cmpl_els_flogi_nport - Completion function for flogi to an N_Port
|
|
* @vport: pointer to a host virtual N_Port data structure.
|
|
* @ndlp: pointer to a node-list data structure.
|
|
* @sp: pointer to service parameter data structure.
|
|
*
|
|
* This routine is invoked by the lpfc_cmpl_els_flogi() completion callback
|
|
* function to handle the completion of a Fabric Login (FLOGI) into an N_Port
|
|
* in a point-to-point topology. First, the @vport's N_Port Name is compared
|
|
* with the received N_Port Name: if the @vport's N_Port Name is greater than
|
|
* the received N_Port Name lexicographically, this node shall assign local
|
|
* N_Port ID (PT2PT_LocalID: 1) and remote N_Port ID (PT2PT_RemoteID: 2) and
|
|
* will send out Port Login (PLOGI) with the N_Port IDs assigned. Otherwise,
|
|
* this node shall just wait for the remote node to issue PLOGI and assign
|
|
* N_Port IDs.
|
|
*
|
|
* Return code
|
|
* 0 - Success
|
|
* -ENXIO - Fail
|
|
**/
|
|
static int
|
|
lpfc_cmpl_els_flogi_nport(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
|
|
struct serv_parm *sp)
|
|
{
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
struct lpfc_hba *phba = vport->phba;
|
|
LPFC_MBOXQ_t *mbox;
|
|
int rc;
|
|
|
|
spin_lock_irq(shost->host_lock);
|
|
vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
|
|
vport->fc_flag |= FC_PT2PT;
|
|
spin_unlock_irq(shost->host_lock);
|
|
|
|
/* If physical FC port changed, unreg VFI and ALL VPIs / RPIs */
|
|
if ((phba->sli_rev == LPFC_SLI_REV4) && phba->fc_topology_changed) {
|
|
lpfc_unregister_fcf_prep(phba);
|
|
|
|
spin_lock_irq(shost->host_lock);
|
|
vport->fc_flag &= ~FC_VFI_REGISTERED;
|
|
spin_unlock_irq(shost->host_lock);
|
|
phba->fc_topology_changed = 0;
|
|
}
|
|
|
|
rc = memcmp(&vport->fc_portname, &sp->portName,
|
|
sizeof(vport->fc_portname));
|
|
|
|
if (rc >= 0) {
|
|
/* This side will initiate the PLOGI */
|
|
spin_lock_irq(shost->host_lock);
|
|
vport->fc_flag |= FC_PT2PT_PLOGI;
|
|
spin_unlock_irq(shost->host_lock);
|
|
|
|
/*
|
|
* N_Port ID cannot be 0, set our Id to LocalID
|
|
* the other side will be RemoteID.
|
|
*/
|
|
|
|
/* not equal */
|
|
if (rc)
|
|
vport->fc_myDID = PT2PT_LocalID;
|
|
|
|
/* Decrement ndlp reference count indicating that ndlp can be
|
|
* safely released when other references to it are done.
|
|
*/
|
|
lpfc_nlp_put(ndlp);
|
|
|
|
ndlp = lpfc_findnode_did(vport, PT2PT_RemoteID);
|
|
if (!ndlp) {
|
|
/*
|
|
* Cannot find existing Fabric ndlp, so allocate a
|
|
* new one
|
|
*/
|
|
ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
|
|
if (!ndlp)
|
|
goto fail;
|
|
lpfc_nlp_init(vport, ndlp, PT2PT_RemoteID);
|
|
} else if (!NLP_CHK_NODE_ACT(ndlp)) {
|
|
ndlp = lpfc_enable_node(vport, ndlp,
|
|
NLP_STE_UNUSED_NODE);
|
|
if(!ndlp)
|
|
goto fail;
|
|
}
|
|
|
|
memcpy(&ndlp->nlp_portname, &sp->portName,
|
|
sizeof(struct lpfc_name));
|
|
memcpy(&ndlp->nlp_nodename, &sp->nodeName,
|
|
sizeof(struct lpfc_name));
|
|
/* Set state will put ndlp onto node list if not already done */
|
|
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);
|
|
} else
|
|
/* This side will wait for the PLOGI, decrement ndlp reference
|
|
* count indicating that ndlp can be released when other
|
|
* references to it are done.
|
|
*/
|
|
lpfc_nlp_put(ndlp);
|
|
|
|
/* If we are pt2pt with another NPort, force NPIV off! */
|
|
phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED;
|
|
|
|
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (!mbox)
|
|
goto fail;
|
|
|
|
lpfc_config_link(phba, mbox);
|
|
|
|
mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link;
|
|
mbox->vport = vport;
|
|
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
|
|
if (rc == MBX_NOT_FINISHED) {
|
|
mempool_free(mbox, phba->mbox_mem_pool);
|
|
goto fail;
|
|
}
|
|
|
|
return 0;
|
|
fail:
|
|
return -ENXIO;
|
|
}
|
|
|
|
/**
|
|
* lpfc_cmpl_els_flogi - Completion callback function for flogi
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @cmdiocb: pointer to lpfc command iocb data structure.
|
|
* @rspiocb: pointer to lpfc response iocb data structure.
|
|
*
|
|
* This routine is the top-level completion callback function for issuing
|
|
* a Fabric Login (FLOGI) command. If the response IOCB reported error,
|
|
* the lpfc_els_retry() routine shall be invoked to retry the FLOGI. If
|
|
* retry has been made (either immediately or delayed with lpfc_els_retry()
|
|
* returning 1), the command IOCB will be released and function returned.
|
|
* If the retry attempt has been given up (possibly reach the maximum
|
|
* number of retries), one additional decrement of ndlp reference shall be
|
|
* invoked before going out after releasing the command IOCB. This will
|
|
* actually release the remote node (Note, lpfc_els_free_iocb() will also
|
|
* invoke one decrement of ndlp reference count). If no error reported in
|
|
* the IOCB status, the command Port ID field is used to determine whether
|
|
* this is a point-to-point topology or a fabric topology: if the Port ID
|
|
* field is assigned, it is a fabric topology; otherwise, it is a
|
|
* point-to-point topology. The routine lpfc_cmpl_els_flogi_fabric() or
|
|
* lpfc_cmpl_els_flogi_nport() shall be invoked accordingly to handle the
|
|
* specific topology completion conditions.
|
|
**/
|
|
static void
|
|
lpfc_cmpl_els_flogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
|
|
struct lpfc_iocbq *rspiocb)
|
|
{
|
|
struct lpfc_vport *vport = cmdiocb->vport;
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
IOCB_t *irsp = &rspiocb->iocb;
|
|
struct lpfc_nodelist *ndlp = cmdiocb->context1;
|
|
struct lpfc_dmabuf *pcmd = cmdiocb->context2, *prsp;
|
|
struct serv_parm *sp;
|
|
uint16_t fcf_index;
|
|
int rc;
|
|
|
|
/* Check to see if link went down during discovery */
|
|
if (lpfc_els_chk_latt(vport)) {
|
|
/* One additional decrement on node reference count to
|
|
* trigger the release of the node
|
|
*/
|
|
lpfc_nlp_put(ndlp);
|
|
goto out;
|
|
}
|
|
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
|
|
"FLOGI cmpl: status:x%x/x%x state:x%x",
|
|
irsp->ulpStatus, irsp->un.ulpWord[4],
|
|
vport->port_state);
|
|
|
|
if (irsp->ulpStatus) {
|
|
/*
|
|
* In case of FIP mode, perform roundrobin FCF failover
|
|
* due to new FCF discovery
|
|
*/
|
|
if ((phba->hba_flag & HBA_FIP_SUPPORT) &&
|
|
(phba->fcf.fcf_flag & FCF_DISCOVERY)) {
|
|
if (phba->link_state < LPFC_LINK_UP)
|
|
goto stop_rr_fcf_flogi;
|
|
if ((phba->fcoe_cvl_eventtag_attn ==
|
|
phba->fcoe_cvl_eventtag) &&
|
|
(irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
|
|
((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
|
|
IOERR_SLI_ABORTED))
|
|
goto stop_rr_fcf_flogi;
|
|
else
|
|
phba->fcoe_cvl_eventtag_attn =
|
|
phba->fcoe_cvl_eventtag;
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS,
|
|
"2611 FLOGI failed on FCF (x%x), "
|
|
"status:x%x/x%x, tmo:x%x, perform "
|
|
"roundrobin FCF failover\n",
|
|
phba->fcf.current_rec.fcf_indx,
|
|
irsp->ulpStatus, irsp->un.ulpWord[4],
|
|
irsp->ulpTimeout);
|
|
lpfc_sli4_set_fcf_flogi_fail(phba,
|
|
phba->fcf.current_rec.fcf_indx);
|
|
fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba);
|
|
rc = lpfc_sli4_fcf_rr_next_proc(vport, fcf_index);
|
|
if (rc)
|
|
goto out;
|
|
}
|
|
|
|
stop_rr_fcf_flogi:
|
|
/* FLOGI failure */
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
|
|
"2858 FLOGI failure Status:x%x/x%x TMO:x%x "
|
|
"Data x%x x%x\n",
|
|
irsp->ulpStatus, irsp->un.ulpWord[4],
|
|
irsp->ulpTimeout, phba->hba_flag,
|
|
phba->fcf.fcf_flag);
|
|
|
|
/* Check for retry */
|
|
if (lpfc_els_retry(phba, cmdiocb, rspiocb))
|
|
goto out;
|
|
|
|
/* FLOGI failure */
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
|
|
"0100 FLOGI failure Status:x%x/x%x TMO:x%x\n",
|
|
irsp->ulpStatus, irsp->un.ulpWord[4],
|
|
irsp->ulpTimeout);
|
|
|
|
/* FLOGI failed, so there is no fabric */
|
|
spin_lock_irq(shost->host_lock);
|
|
vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
|
|
spin_unlock_irq(shost->host_lock);
|
|
|
|
/* If private loop, then allow max outstanding els to be
|
|
* LPFC_MAX_DISC_THREADS (32). Scanning in the case of no
|
|
* alpa map would take too long otherwise.
|
|
*/
|
|
if (phba->alpa_map[0] == 0)
|
|
vport->cfg_discovery_threads = LPFC_MAX_DISC_THREADS;
|
|
if ((phba->sli_rev == LPFC_SLI_REV4) &&
|
|
(!(vport->fc_flag & FC_VFI_REGISTERED) ||
|
|
(vport->fc_prevDID != vport->fc_myDID) ||
|
|
phba->fc_topology_changed)) {
|
|
if (vport->fc_flag & FC_VFI_REGISTERED) {
|
|
if (phba->fc_topology_changed) {
|
|
lpfc_unregister_fcf_prep(phba);
|
|
spin_lock_irq(shost->host_lock);
|
|
vport->fc_flag &= ~FC_VFI_REGISTERED;
|
|
spin_unlock_irq(shost->host_lock);
|
|
phba->fc_topology_changed = 0;
|
|
} else {
|
|
lpfc_sli4_unreg_all_rpis(vport);
|
|
}
|
|
}
|
|
|
|
/* Do not register VFI if the driver aborted FLOGI */
|
|
if (!lpfc_error_lost_link(irsp))
|
|
lpfc_issue_reg_vfi(vport);
|
|
lpfc_nlp_put(ndlp);
|
|
goto out;
|
|
}
|
|
goto flogifail;
|
|
}
|
|
spin_lock_irq(shost->host_lock);
|
|
vport->fc_flag &= ~FC_VPORT_CVL_RCVD;
|
|
vport->fc_flag &= ~FC_VPORT_LOGO_RCVD;
|
|
spin_unlock_irq(shost->host_lock);
|
|
|
|
/*
|
|
* The FLogI succeeded. Sync the data for the CPU before
|
|
* accessing it.
|
|
*/
|
|
prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list);
|
|
if (!prsp)
|
|
goto out;
|
|
sp = prsp->virt + sizeof(uint32_t);
|
|
|
|
/* FLOGI completes successfully */
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
|
|
"0101 FLOGI completes successfully, I/O tag:x%x, "
|
|
"Data: x%x x%x x%x x%x x%x x%x\n", cmdiocb->iotag,
|
|
irsp->un.ulpWord[4], sp->cmn.e_d_tov,
|
|
sp->cmn.w2.r_a_tov, sp->cmn.edtovResolution,
|
|
vport->port_state, vport->fc_flag);
|
|
|
|
if (vport->port_state == LPFC_FLOGI) {
|
|
/*
|
|
* If Common Service Parameters indicate Nport
|
|
* we are point to point, if Fport we are Fabric.
|
|
*/
|
|
if (sp->cmn.fPort)
|
|
rc = lpfc_cmpl_els_flogi_fabric(vport, ndlp, sp, irsp);
|
|
else if (!(phba->hba_flag & HBA_FCOE_MODE))
|
|
rc = lpfc_cmpl_els_flogi_nport(vport, ndlp, sp);
|
|
else {
|
|
lpfc_printf_vlog(vport, KERN_ERR,
|
|
LOG_FIP | LOG_ELS,
|
|
"2831 FLOGI response with cleared Fabric "
|
|
"bit fcf_index 0x%x "
|
|
"Switch Name %02x%02x%02x%02x%02x%02x%02x%02x "
|
|
"Fabric Name "
|
|
"%02x%02x%02x%02x%02x%02x%02x%02x\n",
|
|
phba->fcf.current_rec.fcf_indx,
|
|
phba->fcf.current_rec.switch_name[0],
|
|
phba->fcf.current_rec.switch_name[1],
|
|
phba->fcf.current_rec.switch_name[2],
|
|
phba->fcf.current_rec.switch_name[3],
|
|
phba->fcf.current_rec.switch_name[4],
|
|
phba->fcf.current_rec.switch_name[5],
|
|
phba->fcf.current_rec.switch_name[6],
|
|
phba->fcf.current_rec.switch_name[7],
|
|
phba->fcf.current_rec.fabric_name[0],
|
|
phba->fcf.current_rec.fabric_name[1],
|
|
phba->fcf.current_rec.fabric_name[2],
|
|
phba->fcf.current_rec.fabric_name[3],
|
|
phba->fcf.current_rec.fabric_name[4],
|
|
phba->fcf.current_rec.fabric_name[5],
|
|
phba->fcf.current_rec.fabric_name[6],
|
|
phba->fcf.current_rec.fabric_name[7]);
|
|
lpfc_nlp_put(ndlp);
|
|
spin_lock_irq(&phba->hbalock);
|
|
phba->fcf.fcf_flag &= ~FCF_DISCOVERY;
|
|
phba->hba_flag &= ~(FCF_RR_INPROG | HBA_DEVLOSS_TMO);
|
|
spin_unlock_irq(&phba->hbalock);
|
|
goto out;
|
|
}
|
|
if (!rc) {
|
|
/* Mark the FCF discovery process done */
|
|
if (phba->hba_flag & HBA_FIP_SUPPORT)
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_FIP |
|
|
LOG_ELS,
|
|
"2769 FLOGI to FCF (x%x) "
|
|
"completed successfully\n",
|
|
phba->fcf.current_rec.fcf_indx);
|
|
spin_lock_irq(&phba->hbalock);
|
|
phba->fcf.fcf_flag &= ~FCF_DISCOVERY;
|
|
phba->hba_flag &= ~(FCF_RR_INPROG | HBA_DEVLOSS_TMO);
|
|
spin_unlock_irq(&phba->hbalock);
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
flogifail:
|
|
spin_lock_irq(&phba->hbalock);
|
|
phba->fcf.fcf_flag &= ~FCF_DISCOVERY;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
|
|
lpfc_nlp_put(ndlp);
|
|
|
|
if (!lpfc_error_lost_link(irsp)) {
|
|
/* FLOGI failed, so just use loop map to make discovery list */
|
|
lpfc_disc_list_loopmap(vport);
|
|
|
|
/* Start discovery */
|
|
lpfc_disc_start(vport);
|
|
} else if (((irsp->ulpStatus != IOSTAT_LOCAL_REJECT) ||
|
|
(((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) !=
|
|
IOERR_SLI_ABORTED) &&
|
|
((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) !=
|
|
IOERR_SLI_DOWN))) &&
|
|
(phba->link_state != LPFC_CLEAR_LA)) {
|
|
/* If FLOGI failed enable link interrupt. */
|
|
lpfc_issue_clear_la(phba, vport);
|
|
}
|
|
out:
|
|
lpfc_els_free_iocb(phba, cmdiocb);
|
|
}
|
|
|
|
/**
|
|
* lpfc_issue_els_flogi - Issue an flogi iocb command for a vport
|
|
* @vport: pointer to a host virtual N_Port data structure.
|
|
* @ndlp: pointer to a node-list data structure.
|
|
* @retry: number of retries to the command IOCB.
|
|
*
|
|
* This routine issues a Fabric Login (FLOGI) Request ELS command
|
|
* for a @vport. The initiator service parameters are put into the payload
|
|
* of the FLOGI Request IOCB and the top-level callback function pointer
|
|
* to lpfc_cmpl_els_flogi() routine is put to the IOCB completion callback
|
|
* function field. The lpfc_issue_fabric_iocb routine is invoked to send
|
|
* out FLOGI ELS command with one outstanding fabric IOCB at a time.
|
|
*
|
|
* Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
|
|
* will be incremented by 1 for holding the ndlp and the reference to ndlp
|
|
* will be stored into the context1 field of the IOCB for the completion
|
|
* callback function to the FLOGI ELS command.
|
|
*
|
|
* Return code
|
|
* 0 - successfully issued flogi iocb for @vport
|
|
* 1 - failed to issue flogi iocb for @vport
|
|
**/
|
|
static int
|
|
lpfc_issue_els_flogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
|
|
uint8_t retry)
|
|
{
|
|
struct lpfc_hba *phba = vport->phba;
|
|
struct serv_parm *sp;
|
|
IOCB_t *icmd;
|
|
struct lpfc_iocbq *elsiocb;
|
|
uint8_t *pcmd;
|
|
uint16_t cmdsize;
|
|
uint32_t tmo;
|
|
int rc;
|
|
|
|
cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm));
|
|
elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
|
|
ndlp->nlp_DID, ELS_CMD_FLOGI);
|
|
|
|
if (!elsiocb)
|
|
return 1;
|
|
|
|
icmd = &elsiocb->iocb;
|
|
pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
|
|
|
|
/* For FLOGI request, remainder of payload is service parameters */
|
|
*((uint32_t *) (pcmd)) = ELS_CMD_FLOGI;
|
|
pcmd += sizeof(uint32_t);
|
|
memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm));
|
|
sp = (struct serv_parm *) pcmd;
|
|
|
|
/* Setup CSPs accordingly for Fabric */
|
|
sp->cmn.e_d_tov = 0;
|
|
sp->cmn.w2.r_a_tov = 0;
|
|
sp->cmn.virtual_fabric_support = 0;
|
|
sp->cls1.classValid = 0;
|
|
if (sp->cmn.fcphLow < FC_PH3)
|
|
sp->cmn.fcphLow = FC_PH3;
|
|
if (sp->cmn.fcphHigh < FC_PH3)
|
|
sp->cmn.fcphHigh = FC_PH3;
|
|
|
|
if (phba->sli_rev == LPFC_SLI_REV4) {
|
|
if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
|
|
LPFC_SLI_INTF_IF_TYPE_0) {
|
|
elsiocb->iocb.ulpCt_h = ((SLI4_CT_FCFI >> 1) & 1);
|
|
elsiocb->iocb.ulpCt_l = (SLI4_CT_FCFI & 1);
|
|
/* FLOGI needs to be 3 for WQE FCFI */
|
|
/* Set the fcfi to the fcfi we registered with */
|
|
elsiocb->iocb.ulpContext = phba->fcf.fcfi;
|
|
}
|
|
/* Can't do SLI4 class2 without support sequence coalescing */
|
|
sp->cls2.classValid = 0;
|
|
sp->cls2.seqDelivery = 0;
|
|
} else {
|
|
/* Historical, setting sequential-delivery bit for SLI3 */
|
|
sp->cls2.seqDelivery = (sp->cls2.classValid) ? 1 : 0;
|
|
sp->cls3.seqDelivery = (sp->cls3.classValid) ? 1 : 0;
|
|
if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) {
|
|
sp->cmn.request_multiple_Nport = 1;
|
|
/* For FLOGI, Let FLOGI rsp set the NPortID for VPI 0 */
|
|
icmd->ulpCt_h = 1;
|
|
icmd->ulpCt_l = 0;
|
|
} else
|
|
sp->cmn.request_multiple_Nport = 0;
|
|
}
|
|
|
|
if (phba->fc_topology != LPFC_TOPOLOGY_LOOP) {
|
|
icmd->un.elsreq64.myID = 0;
|
|
icmd->un.elsreq64.fl = 1;
|
|
}
|
|
|
|
tmo = phba->fc_ratov;
|
|
phba->fc_ratov = LPFC_DISC_FLOGI_TMO;
|
|
lpfc_set_disctmo(vport);
|
|
phba->fc_ratov = tmo;
|
|
|
|
phba->fc_stat.elsXmitFLOGI++;
|
|
elsiocb->iocb_cmpl = lpfc_cmpl_els_flogi;
|
|
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
|
|
"Issue FLOGI: opt:x%x",
|
|
phba->sli3_options, 0, 0);
|
|
|
|
rc = lpfc_issue_fabric_iocb(phba, elsiocb);
|
|
if (rc == IOCB_ERROR) {
|
|
lpfc_els_free_iocb(phba, elsiocb);
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_els_abort_flogi - Abort all outstanding flogi iocbs
|
|
* @phba: pointer to lpfc hba data structure.
|
|
*
|
|
* This routine aborts all the outstanding Fabric Login (FLOGI) IOCBs
|
|
* with a @phba. This routine walks all the outstanding IOCBs on the txcmplq
|
|
* list and issues an abort IOCB commond on each outstanding IOCB that
|
|
* contains a active Fabric_DID ndlp. Note that this function is to issue
|
|
* the abort IOCB command on all the outstanding IOCBs, thus when this
|
|
* function returns, it does not guarantee all the IOCBs are actually aborted.
|
|
*
|
|
* Return code
|
|
* 0 - Successfully issued abort iocb on all outstanding flogis (Always 0)
|
|
**/
|
|
int
|
|
lpfc_els_abort_flogi(struct lpfc_hba *phba)
|
|
{
|
|
struct lpfc_sli_ring *pring;
|
|
struct lpfc_iocbq *iocb, *next_iocb;
|
|
struct lpfc_nodelist *ndlp;
|
|
IOCB_t *icmd;
|
|
|
|
/* Abort outstanding I/O on NPort <nlp_DID> */
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
|
|
"0201 Abort outstanding I/O on NPort x%x\n",
|
|
Fabric_DID);
|
|
|
|
pring = &phba->sli.ring[LPFC_ELS_RING];
|
|
|
|
/*
|
|
* Check the txcmplq for an iocb that matches the nport the driver is
|
|
* searching for.
|
|
*/
|
|
spin_lock_irq(&phba->hbalock);
|
|
list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
|
|
icmd = &iocb->iocb;
|
|
if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR) {
|
|
ndlp = (struct lpfc_nodelist *)(iocb->context1);
|
|
if (ndlp && NLP_CHK_NODE_ACT(ndlp) &&
|
|
(ndlp->nlp_DID == Fabric_DID))
|
|
lpfc_sli_issue_abort_iotag(phba, pring, iocb);
|
|
}
|
|
}
|
|
spin_unlock_irq(&phba->hbalock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_initial_flogi - Issue an initial fabric login for a vport
|
|
* @vport: pointer to a host virtual N_Port data structure.
|
|
*
|
|
* This routine issues an initial Fabric Login (FLOGI) for the @vport
|
|
* specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from
|
|
* the @vport's ndlp list. If no such ndlp found, it will create an ndlp and
|
|
* put it into the @vport's ndlp list. If an inactive ndlp found on the list,
|
|
* it will just be enabled and made active. The lpfc_issue_els_flogi() routine
|
|
* is then invoked with the @vport and the ndlp to perform the FLOGI for the
|
|
* @vport.
|
|
*
|
|
* Return code
|
|
* 0 - failed to issue initial flogi for @vport
|
|
* 1 - successfully issued initial flogi for @vport
|
|
**/
|
|
int
|
|
lpfc_initial_flogi(struct lpfc_vport *vport)
|
|
{
|
|
struct lpfc_hba *phba = vport->phba;
|
|
struct lpfc_nodelist *ndlp;
|
|
|
|
vport->port_state = LPFC_FLOGI;
|
|
lpfc_set_disctmo(vport);
|
|
|
|
/* First look for the Fabric ndlp */
|
|
ndlp = lpfc_findnode_did(vport, Fabric_DID);
|
|
if (!ndlp) {
|
|
/* Cannot find existing Fabric ndlp, so allocate a new one */
|
|
ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
|
|
if (!ndlp)
|
|
return 0;
|
|
lpfc_nlp_init(vport, ndlp, Fabric_DID);
|
|
/* Set the node type */
|
|
ndlp->nlp_type |= NLP_FABRIC;
|
|
/* Put ndlp onto node list */
|
|
lpfc_enqueue_node(vport, ndlp);
|
|
} else if (!NLP_CHK_NODE_ACT(ndlp)) {
|
|
/* re-setup ndlp without removing from node list */
|
|
ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
|
|
if (!ndlp)
|
|
return 0;
|
|
}
|
|
|
|
if (lpfc_issue_els_flogi(vport, ndlp, 0)) {
|
|
/* This decrement of reference count to node shall kick off
|
|
* the release of the node.
|
|
*/
|
|
lpfc_nlp_put(ndlp);
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
/**
|
|
* lpfc_initial_fdisc - Issue an initial fabric discovery for a vport
|
|
* @vport: pointer to a host virtual N_Port data structure.
|
|
*
|
|
* This routine issues an initial Fabric Discover (FDISC) for the @vport
|
|
* specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from
|
|
* the @vport's ndlp list. If no such ndlp found, it will create an ndlp and
|
|
* put it into the @vport's ndlp list. If an inactive ndlp found on the list,
|
|
* it will just be enabled and made active. The lpfc_issue_els_fdisc() routine
|
|
* is then invoked with the @vport and the ndlp to perform the FDISC for the
|
|
* @vport.
|
|
*
|
|
* Return code
|
|
* 0 - failed to issue initial fdisc for @vport
|
|
* 1 - successfully issued initial fdisc for @vport
|
|
**/
|
|
int
|
|
lpfc_initial_fdisc(struct lpfc_vport *vport)
|
|
{
|
|
struct lpfc_hba *phba = vport->phba;
|
|
struct lpfc_nodelist *ndlp;
|
|
|
|
/* First look for the Fabric ndlp */
|
|
ndlp = lpfc_findnode_did(vport, Fabric_DID);
|
|
if (!ndlp) {
|
|
/* Cannot find existing Fabric ndlp, so allocate a new one */
|
|
ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
|
|
if (!ndlp)
|
|
return 0;
|
|
lpfc_nlp_init(vport, ndlp, Fabric_DID);
|
|
/* Put ndlp onto node list */
|
|
lpfc_enqueue_node(vport, ndlp);
|
|
} else if (!NLP_CHK_NODE_ACT(ndlp)) {
|
|
/* re-setup ndlp without removing from node list */
|
|
ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
|
|
if (!ndlp)
|
|
return 0;
|
|
}
|
|
|
|
if (lpfc_issue_els_fdisc(vport, ndlp, 0)) {
|
|
/* decrement node reference count to trigger the release of
|
|
* the node.
|
|
*/
|
|
lpfc_nlp_put(ndlp);
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
/**
|
|
* lpfc_more_plogi - Check and issue remaining plogis for a vport
|
|
* @vport: pointer to a host virtual N_Port data structure.
|
|
*
|
|
* This routine checks whether there are more remaining Port Logins
|
|
* (PLOGI) to be issued for the @vport. If so, it will invoke the routine
|
|
* lpfc_els_disc_plogi() to go through the Node Port Recovery (NPR) nodes
|
|
* to issue ELS PLOGIs up to the configured discover threads with the
|
|
* @vport (@vport->cfg_discovery_threads). The function also decrement
|
|
* the @vport's num_disc_node by 1 if it is not already 0.
|
|
**/
|
|
void
|
|
lpfc_more_plogi(struct lpfc_vport *vport)
|
|
{
|
|
if (vport->num_disc_nodes)
|
|
vport->num_disc_nodes--;
|
|
|
|
/* Continue discovery with <num_disc_nodes> PLOGIs to go */
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
|
|
"0232 Continue discovery with %d PLOGIs to go "
|
|
"Data: x%x x%x x%x\n",
|
|
vport->num_disc_nodes, vport->fc_plogi_cnt,
|
|
vport->fc_flag, vport->port_state);
|
|
/* Check to see if there are more PLOGIs to be sent */
|
|
if (vport->fc_flag & FC_NLP_MORE)
|
|
/* go thru NPR nodes and issue any remaining ELS PLOGIs */
|
|
lpfc_els_disc_plogi(vport);
|
|
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* lpfc_plogi_confirm_nport - Confirm pologi wwpn matches stored ndlp
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @prsp: pointer to response IOCB payload.
|
|
* @ndlp: pointer to a node-list data structure.
|
|
*
|
|
* This routine checks and indicates whether the WWPN of an N_Port, retrieved
|
|
* from a PLOGI, matches the WWPN that is stored in the @ndlp for that N_POrt.
|
|
* The following cases are considered N_Port confirmed:
|
|
* 1) The N_Port is a Fabric ndlp; 2) The @ndlp is on vport list and matches
|
|
* the WWPN of the N_Port logged into; 3) The @ndlp is not on vport list but
|
|
* it does not have WWPN assigned either. If the WWPN is confirmed, the
|
|
* pointer to the @ndlp will be returned. If the WWPN is not confirmed:
|
|
* 1) if there is a node on vport list other than the @ndlp with the same
|
|
* WWPN of the N_Port PLOGI logged into, the lpfc_unreg_rpi() will be invoked
|
|
* on that node to release the RPI associated with the node; 2) if there is
|
|
* no node found on vport list with the same WWPN of the N_Port PLOGI logged
|
|
* into, a new node shall be allocated (or activated). In either case, the
|
|
* parameters of the @ndlp shall be copied to the new_ndlp, the @ndlp shall
|
|
* be released and the new_ndlp shall be put on to the vport node list and
|
|
* its pointer returned as the confirmed node.
|
|
*
|
|
* Note that before the @ndlp got "released", the keepDID from not-matching
|
|
* or inactive "new_ndlp" on the vport node list is assigned to the nlp_DID
|
|
* of the @ndlp. This is because the release of @ndlp is actually to put it
|
|
* into an inactive state on the vport node list and the vport node list
|
|
* management algorithm does not allow two node with a same DID.
|
|
*
|
|
* Return code
|
|
* pointer to the PLOGI N_Port @ndlp
|
|
**/
|
|
static struct lpfc_nodelist *
|
|
lpfc_plogi_confirm_nport(struct lpfc_hba *phba, uint32_t *prsp,
|
|
struct lpfc_nodelist *ndlp)
|
|
{
|
|
struct lpfc_vport *vport = ndlp->vport;
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
struct lpfc_nodelist *new_ndlp;
|
|
struct lpfc_rport_data *rdata;
|
|
struct fc_rport *rport;
|
|
struct serv_parm *sp;
|
|
uint8_t name[sizeof(struct lpfc_name)];
|
|
uint32_t rc, keepDID = 0, keep_nlp_flag = 0;
|
|
uint16_t keep_nlp_state;
|
|
int put_node;
|
|
int put_rport;
|
|
unsigned long *active_rrqs_xri_bitmap = NULL;
|
|
|
|
/* Fabric nodes can have the same WWPN so we don't bother searching
|
|
* by WWPN. Just return the ndlp that was given to us.
|
|
*/
|
|
if (ndlp->nlp_type & NLP_FABRIC)
|
|
return ndlp;
|
|
|
|
sp = (struct serv_parm *) ((uint8_t *) prsp + sizeof(uint32_t));
|
|
memset(name, 0, sizeof(struct lpfc_name));
|
|
|
|
/* Now we find out if the NPort we are logging into, matches the WWPN
|
|
* we have for that ndlp. If not, we have some work to do.
|
|
*/
|
|
new_ndlp = lpfc_findnode_wwpn(vport, &sp->portName);
|
|
|
|
if (new_ndlp == ndlp && NLP_CHK_NODE_ACT(new_ndlp))
|
|
return ndlp;
|
|
if (phba->sli_rev == LPFC_SLI_REV4) {
|
|
active_rrqs_xri_bitmap = mempool_alloc(phba->active_rrq_pool,
|
|
GFP_KERNEL);
|
|
if (active_rrqs_xri_bitmap)
|
|
memset(active_rrqs_xri_bitmap, 0,
|
|
phba->cfg_rrq_xri_bitmap_sz);
|
|
}
|
|
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
|
|
"3178 PLOGI confirm: ndlp %p x%x: new_ndlp %p\n",
|
|
ndlp, ndlp->nlp_DID, new_ndlp);
|
|
|
|
if (!new_ndlp) {
|
|
rc = memcmp(&ndlp->nlp_portname, name,
|
|
sizeof(struct lpfc_name));
|
|
if (!rc) {
|
|
if (active_rrqs_xri_bitmap)
|
|
mempool_free(active_rrqs_xri_bitmap,
|
|
phba->active_rrq_pool);
|
|
return ndlp;
|
|
}
|
|
new_ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_ATOMIC);
|
|
if (!new_ndlp) {
|
|
if (active_rrqs_xri_bitmap)
|
|
mempool_free(active_rrqs_xri_bitmap,
|
|
phba->active_rrq_pool);
|
|
return ndlp;
|
|
}
|
|
lpfc_nlp_init(vport, new_ndlp, ndlp->nlp_DID);
|
|
} else if (!NLP_CHK_NODE_ACT(new_ndlp)) {
|
|
rc = memcmp(&ndlp->nlp_portname, name,
|
|
sizeof(struct lpfc_name));
|
|
if (!rc) {
|
|
if (active_rrqs_xri_bitmap)
|
|
mempool_free(active_rrqs_xri_bitmap,
|
|
phba->active_rrq_pool);
|
|
return ndlp;
|
|
}
|
|
new_ndlp = lpfc_enable_node(vport, new_ndlp,
|
|
NLP_STE_UNUSED_NODE);
|
|
if (!new_ndlp) {
|
|
if (active_rrqs_xri_bitmap)
|
|
mempool_free(active_rrqs_xri_bitmap,
|
|
phba->active_rrq_pool);
|
|
return ndlp;
|
|
}
|
|
keepDID = new_ndlp->nlp_DID;
|
|
if ((phba->sli_rev == LPFC_SLI_REV4) && active_rrqs_xri_bitmap)
|
|
memcpy(active_rrqs_xri_bitmap,
|
|
new_ndlp->active_rrqs_xri_bitmap,
|
|
phba->cfg_rrq_xri_bitmap_sz);
|
|
} else {
|
|
keepDID = new_ndlp->nlp_DID;
|
|
if (phba->sli_rev == LPFC_SLI_REV4 &&
|
|
active_rrqs_xri_bitmap)
|
|
memcpy(active_rrqs_xri_bitmap,
|
|
new_ndlp->active_rrqs_xri_bitmap,
|
|
phba->cfg_rrq_xri_bitmap_sz);
|
|
}
|
|
|
|
lpfc_unreg_rpi(vport, new_ndlp);
|
|
new_ndlp->nlp_DID = ndlp->nlp_DID;
|
|
new_ndlp->nlp_prev_state = ndlp->nlp_prev_state;
|
|
if (phba->sli_rev == LPFC_SLI_REV4)
|
|
memcpy(new_ndlp->active_rrqs_xri_bitmap,
|
|
ndlp->active_rrqs_xri_bitmap,
|
|
phba->cfg_rrq_xri_bitmap_sz);
|
|
|
|
spin_lock_irq(shost->host_lock);
|
|
keep_nlp_flag = new_ndlp->nlp_flag;
|
|
new_ndlp->nlp_flag = ndlp->nlp_flag;
|
|
ndlp->nlp_flag = keep_nlp_flag;
|
|
spin_unlock_irq(shost->host_lock);
|
|
|
|
/* Set nlp_states accordingly */
|
|
keep_nlp_state = new_ndlp->nlp_state;
|
|
lpfc_nlp_set_state(vport, new_ndlp, ndlp->nlp_state);
|
|
|
|
/* Move this back to NPR state */
|
|
if (memcmp(&ndlp->nlp_portname, name, sizeof(struct lpfc_name)) == 0) {
|
|
/* The new_ndlp is replacing ndlp totally, so we need
|
|
* to put ndlp on UNUSED list and try to free it.
|
|
*/
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
|
|
"3179 PLOGI confirm NEW: %x %x\n",
|
|
new_ndlp->nlp_DID, keepDID);
|
|
|
|
/* Fix up the rport accordingly */
|
|
rport = ndlp->rport;
|
|
if (rport) {
|
|
rdata = rport->dd_data;
|
|
if (rdata->pnode == ndlp) {
|
|
/* break the link before dropping the ref */
|
|
ndlp->rport = NULL;
|
|
lpfc_nlp_put(ndlp);
|
|
rdata->pnode = lpfc_nlp_get(new_ndlp);
|
|
new_ndlp->rport = rport;
|
|
}
|
|
new_ndlp->nlp_type = ndlp->nlp_type;
|
|
}
|
|
/* We shall actually free the ndlp with both nlp_DID and
|
|
* nlp_portname fields equals 0 to avoid any ndlp on the
|
|
* nodelist never to be used.
|
|
*/
|
|
if (ndlp->nlp_DID == 0) {
|
|
spin_lock_irq(&phba->ndlp_lock);
|
|
NLP_SET_FREE_REQ(ndlp);
|
|
spin_unlock_irq(&phba->ndlp_lock);
|
|
}
|
|
|
|
/* Two ndlps cannot have the same did on the nodelist */
|
|
ndlp->nlp_DID = keepDID;
|
|
if (phba->sli_rev == LPFC_SLI_REV4 &&
|
|
active_rrqs_xri_bitmap)
|
|
memcpy(ndlp->active_rrqs_xri_bitmap,
|
|
active_rrqs_xri_bitmap,
|
|
phba->cfg_rrq_xri_bitmap_sz);
|
|
|
|
if (!NLP_CHK_NODE_ACT(ndlp))
|
|
lpfc_drop_node(vport, ndlp);
|
|
}
|
|
else {
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
|
|
"3180 PLOGI confirm SWAP: %x %x\n",
|
|
new_ndlp->nlp_DID, keepDID);
|
|
|
|
lpfc_unreg_rpi(vport, ndlp);
|
|
|
|
/* Two ndlps cannot have the same did */
|
|
ndlp->nlp_DID = keepDID;
|
|
if (phba->sli_rev == LPFC_SLI_REV4 &&
|
|
active_rrqs_xri_bitmap)
|
|
memcpy(ndlp->active_rrqs_xri_bitmap,
|
|
active_rrqs_xri_bitmap,
|
|
phba->cfg_rrq_xri_bitmap_sz);
|
|
|
|
/* Since we are switching over to the new_ndlp,
|
|
* reset the old ndlp state
|
|
*/
|
|
if ((ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) ||
|
|
(ndlp->nlp_state == NLP_STE_MAPPED_NODE))
|
|
keep_nlp_state = NLP_STE_NPR_NODE;
|
|
lpfc_nlp_set_state(vport, ndlp, keep_nlp_state);
|
|
|
|
/* Fix up the rport accordingly */
|
|
rport = ndlp->rport;
|
|
if (rport) {
|
|
rdata = rport->dd_data;
|
|
put_node = rdata->pnode != NULL;
|
|
put_rport = ndlp->rport != NULL;
|
|
rdata->pnode = NULL;
|
|
ndlp->rport = NULL;
|
|
if (put_node)
|
|
lpfc_nlp_put(ndlp);
|
|
if (put_rport)
|
|
put_device(&rport->dev);
|
|
}
|
|
}
|
|
if (phba->sli_rev == LPFC_SLI_REV4 &&
|
|
active_rrqs_xri_bitmap)
|
|
mempool_free(active_rrqs_xri_bitmap,
|
|
phba->active_rrq_pool);
|
|
return new_ndlp;
|
|
}
|
|
|
|
/**
|
|
* lpfc_end_rscn - Check and handle more rscn for a vport
|
|
* @vport: pointer to a host virtual N_Port data structure.
|
|
*
|
|
* This routine checks whether more Registration State Change
|
|
* Notifications (RSCNs) came in while the discovery state machine was in
|
|
* the FC_RSCN_MODE. If so, the lpfc_els_handle_rscn() routine will be
|
|
* invoked to handle the additional RSCNs for the @vport. Otherwise, the
|
|
* FC_RSCN_MODE bit will be cleared with the @vport to mark as the end of
|
|
* handling the RSCNs.
|
|
**/
|
|
void
|
|
lpfc_end_rscn(struct lpfc_vport *vport)
|
|
{
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
|
|
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 ||
|
|
(vport->fc_flag & FC_RSCN_DISCOVERY) != 0)
|
|
lpfc_els_handle_rscn(vport);
|
|
else {
|
|
spin_lock_irq(shost->host_lock);
|
|
vport->fc_flag &= ~FC_RSCN_MODE;
|
|
spin_unlock_irq(shost->host_lock);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* lpfc_cmpl_els_rrq - Completion handled for els RRQs.
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @cmdiocb: pointer to lpfc command iocb data structure.
|
|
* @rspiocb: pointer to lpfc response iocb data structure.
|
|
*
|
|
* This routine will call the clear rrq function to free the rrq and
|
|
* clear the xri's bit in the ndlp's xri_bitmap. If the ndlp does not
|
|
* exist then the clear_rrq is still called because the rrq needs to
|
|
* be freed.
|
|
**/
|
|
|
|
static void
|
|
lpfc_cmpl_els_rrq(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
|
|
struct lpfc_iocbq *rspiocb)
|
|
{
|
|
struct lpfc_vport *vport = cmdiocb->vport;
|
|
IOCB_t *irsp;
|
|
struct lpfc_nodelist *ndlp;
|
|
struct lpfc_node_rrq *rrq;
|
|
|
|
/* we pass cmdiocb to state machine which needs rspiocb as well */
|
|
rrq = cmdiocb->context_un.rrq;
|
|
cmdiocb->context_un.rsp_iocb = rspiocb;
|
|
|
|
irsp = &rspiocb->iocb;
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
|
|
"RRQ cmpl: status:x%x/x%x did:x%x",
|
|
irsp->ulpStatus, irsp->un.ulpWord[4],
|
|
irsp->un.elsreq64.remoteID);
|
|
|
|
ndlp = lpfc_findnode_did(vport, irsp->un.elsreq64.remoteID);
|
|
if (!ndlp || !NLP_CHK_NODE_ACT(ndlp) || ndlp != rrq->ndlp) {
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
|
|
"2882 RRQ completes to NPort x%x "
|
|
"with no ndlp. Data: x%x x%x x%x\n",
|
|
irsp->un.elsreq64.remoteID,
|
|
irsp->ulpStatus, irsp->un.ulpWord[4],
|
|
irsp->ulpIoTag);
|
|
goto out;
|
|
}
|
|
|
|
/* rrq completes to NPort <nlp_DID> */
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
|
|
"2880 RRQ completes to NPort x%x "
|
|
"Data: x%x x%x x%x x%x x%x\n",
|
|
ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4],
|
|
irsp->ulpTimeout, rrq->xritag, rrq->rxid);
|
|
|
|
if (irsp->ulpStatus) {
|
|
/* Check for retry */
|
|
/* RRQ failed Don't print the vport to vport rjts */
|
|
if (irsp->ulpStatus != IOSTAT_LS_RJT ||
|
|
(((irsp->un.ulpWord[4]) >> 16 != LSRJT_INVALID_CMD) &&
|
|
((irsp->un.ulpWord[4]) >> 16 != LSRJT_UNABLE_TPC)) ||
|
|
(phba)->pport->cfg_log_verbose & LOG_ELS)
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
|
|
"2881 RRQ failure DID:%06X Status:x%x/x%x\n",
|
|
ndlp->nlp_DID, irsp->ulpStatus,
|
|
irsp->un.ulpWord[4]);
|
|
}
|
|
out:
|
|
if (rrq)
|
|
lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
|
|
lpfc_els_free_iocb(phba, cmdiocb);
|
|
return;
|
|
}
|
|
/**
|
|
* lpfc_cmpl_els_plogi - Completion callback function for plogi
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @cmdiocb: pointer to lpfc command iocb data structure.
|
|
* @rspiocb: pointer to lpfc response iocb data structure.
|
|
*
|
|
* This routine is the completion callback function for issuing the Port
|
|
* Login (PLOGI) command. For PLOGI completion, there must be an active
|
|
* ndlp on the vport node list that matches the remote node ID from the
|
|
* PLOGI response IOCB. If such ndlp does not exist, the PLOGI is simply
|
|
* ignored and command IOCB released. The PLOGI response IOCB status is
|
|
* checked for error conditons. If there is error status reported, PLOGI
|
|
* retry shall be attempted by invoking the lpfc_els_retry() routine.
|
|
* Otherwise, the lpfc_plogi_confirm_nport() routine shall be invoked on
|
|
* the ndlp and the NLP_EVT_CMPL_PLOGI state to the Discover State Machine
|
|
* (DSM) is set for this PLOGI completion. Finally, it checks whether
|
|
* there are additional N_Port nodes with the vport that need to perform
|
|
* PLOGI. If so, the lpfc_more_plogi() routine is invoked to issue addition
|
|
* PLOGIs.
|
|
**/
|
|
static void
|
|
lpfc_cmpl_els_plogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
|
|
struct lpfc_iocbq *rspiocb)
|
|
{
|
|
struct lpfc_vport *vport = cmdiocb->vport;
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
IOCB_t *irsp;
|
|
struct lpfc_nodelist *ndlp;
|
|
struct lpfc_dmabuf *prsp;
|
|
int disc, rc;
|
|
|
|
/* we pass cmdiocb to state machine which needs rspiocb as well */
|
|
cmdiocb->context_un.rsp_iocb = rspiocb;
|
|
|
|
irsp = &rspiocb->iocb;
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
|
|
"PLOGI cmpl: status:x%x/x%x did:x%x",
|
|
irsp->ulpStatus, irsp->un.ulpWord[4],
|
|
irsp->un.elsreq64.remoteID);
|
|
|
|
ndlp = lpfc_findnode_did(vport, irsp->un.elsreq64.remoteID);
|
|
if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
|
|
"0136 PLOGI completes to NPort x%x "
|
|
"with no ndlp. Data: x%x x%x x%x\n",
|
|
irsp->un.elsreq64.remoteID,
|
|
irsp->ulpStatus, irsp->un.ulpWord[4],
|
|
irsp->ulpIoTag);
|
|
goto out;
|
|
}
|
|
|
|
/* Since ndlp can be freed in the disc state machine, note if this node
|
|
* is being used during discovery.
|
|
*/
|
|
spin_lock_irq(shost->host_lock);
|
|
disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC);
|
|
ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
|
|
spin_unlock_irq(shost->host_lock);
|
|
rc = 0;
|
|
|
|
/* PLOGI completes to NPort <nlp_DID> */
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
|
|
"0102 PLOGI completes to NPort x%x "
|
|
"Data: x%x x%x x%x x%x x%x\n",
|
|
ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4],
|
|
irsp->ulpTimeout, disc, vport->num_disc_nodes);
|
|
/* Check to see if link went down during discovery */
|
|
if (lpfc_els_chk_latt(vport)) {
|
|
spin_lock_irq(shost->host_lock);
|
|
ndlp->nlp_flag |= NLP_NPR_2B_DISC;
|
|
spin_unlock_irq(shost->host_lock);
|
|
goto out;
|
|
}
|
|
|
|
if (irsp->ulpStatus) {
|
|
/* Check for retry */
|
|
if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
|
|
/* ELS command is being retried */
|
|
if (disc) {
|
|
spin_lock_irq(shost->host_lock);
|
|
ndlp->nlp_flag |= NLP_NPR_2B_DISC;
|
|
spin_unlock_irq(shost->host_lock);
|
|
}
|
|
goto out;
|
|
}
|
|
/* PLOGI failed Don't print the vport to vport rjts */
|
|
if (irsp->ulpStatus != IOSTAT_LS_RJT ||
|
|
(((irsp->un.ulpWord[4]) >> 16 != LSRJT_INVALID_CMD) &&
|
|
((irsp->un.ulpWord[4]) >> 16 != LSRJT_UNABLE_TPC)) ||
|
|
(phba)->pport->cfg_log_verbose & LOG_ELS)
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
|
|
"2753 PLOGI failure DID:%06X Status:x%x/x%x\n",
|
|
ndlp->nlp_DID, irsp->ulpStatus,
|
|
irsp->un.ulpWord[4]);
|
|
/* Do not call DSM for lpfc_els_abort'ed ELS cmds */
|
|
if (lpfc_error_lost_link(irsp))
|
|
rc = NLP_STE_FREED_NODE;
|
|
else
|
|
rc = lpfc_disc_state_machine(vport, ndlp, cmdiocb,
|
|
NLP_EVT_CMPL_PLOGI);
|
|
} else {
|
|
/* Good status, call state machine */
|
|
prsp = list_entry(((struct lpfc_dmabuf *)
|
|
cmdiocb->context2)->list.next,
|
|
struct lpfc_dmabuf, list);
|
|
ndlp = lpfc_plogi_confirm_nport(phba, prsp->virt, ndlp);
|
|
rc = lpfc_disc_state_machine(vport, ndlp, cmdiocb,
|
|
NLP_EVT_CMPL_PLOGI);
|
|
}
|
|
|
|
if (disc && vport->num_disc_nodes) {
|
|
/* Check to see if there are more PLOGIs to be sent */
|
|
lpfc_more_plogi(vport);
|
|
|
|
if (vport->num_disc_nodes == 0) {
|
|
spin_lock_irq(shost->host_lock);
|
|
vport->fc_flag &= ~FC_NDISC_ACTIVE;
|
|
spin_unlock_irq(shost->host_lock);
|
|
|
|
lpfc_can_disctmo(vport);
|
|
lpfc_end_rscn(vport);
|
|
}
|
|
}
|
|
|
|
out:
|
|
lpfc_els_free_iocb(phba, cmdiocb);
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* lpfc_issue_els_plogi - Issue an plogi iocb command for a vport
|
|
* @vport: pointer to a host virtual N_Port data structure.
|
|
* @did: destination port identifier.
|
|
* @retry: number of retries to the command IOCB.
|
|
*
|
|
* This routine issues a Port Login (PLOGI) command to a remote N_Port
|
|
* (with the @did) for a @vport. Before issuing a PLOGI to a remote N_Port,
|
|
* the ndlp with the remote N_Port DID must exist on the @vport's ndlp list.
|
|
* This routine constructs the proper feilds of the PLOGI IOCB and invokes
|
|
* the lpfc_sli_issue_iocb() routine to send out PLOGI ELS command.
|
|
*
|
|
* Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
|
|
* will be incremented by 1 for holding the ndlp and the reference to ndlp
|
|
* will be stored into the context1 field of the IOCB for the completion
|
|
* callback function to the PLOGI ELS command.
|
|
*
|
|
* Return code
|
|
* 0 - Successfully issued a plogi for @vport
|
|
* 1 - failed to issue a plogi for @vport
|
|
**/
|
|
int
|
|
lpfc_issue_els_plogi(struct lpfc_vport *vport, uint32_t did, uint8_t retry)
|
|
{
|
|
struct lpfc_hba *phba = vport->phba;
|
|
struct serv_parm *sp;
|
|
struct lpfc_nodelist *ndlp;
|
|
struct lpfc_iocbq *elsiocb;
|
|
uint8_t *pcmd;
|
|
uint16_t cmdsize;
|
|
int ret;
|
|
|
|
ndlp = lpfc_findnode_did(vport, did);
|
|
if (ndlp && !NLP_CHK_NODE_ACT(ndlp))
|
|
ndlp = NULL;
|
|
|
|
/* If ndlp is not NULL, we will bump the reference count on it */
|
|
cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm));
|
|
elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did,
|
|
ELS_CMD_PLOGI);
|
|
if (!elsiocb)
|
|
return 1;
|
|
|
|
pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
|
|
|
|
/* For PLOGI request, remainder of payload is service parameters */
|
|
*((uint32_t *) (pcmd)) = ELS_CMD_PLOGI;
|
|
pcmd += sizeof(uint32_t);
|
|
memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm));
|
|
sp = (struct serv_parm *) pcmd;
|
|
|
|
/*
|
|
* If we are a N-port connected to a Fabric, fix-up paramm's so logins
|
|
* to device on remote loops work.
|
|
*/
|
|
if ((vport->fc_flag & FC_FABRIC) && !(vport->fc_flag & FC_PUBLIC_LOOP))
|
|
sp->cmn.altBbCredit = 1;
|
|
|
|
if (sp->cmn.fcphLow < FC_PH_4_3)
|
|
sp->cmn.fcphLow = FC_PH_4_3;
|
|
|
|
if (sp->cmn.fcphHigh < FC_PH3)
|
|
sp->cmn.fcphHigh = FC_PH3;
|
|
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
|
|
"Issue PLOGI: did:x%x",
|
|
did, 0, 0);
|
|
|
|
phba->fc_stat.elsXmitPLOGI++;
|
|
elsiocb->iocb_cmpl = lpfc_cmpl_els_plogi;
|
|
ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
|
|
|
|
if (ret == IOCB_ERROR) {
|
|
lpfc_els_free_iocb(phba, elsiocb);
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_cmpl_els_prli - Completion callback function for prli
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @cmdiocb: pointer to lpfc command iocb data structure.
|
|
* @rspiocb: pointer to lpfc response iocb data structure.
|
|
*
|
|
* This routine is the completion callback function for a Process Login
|
|
* (PRLI) ELS command. The PRLI response IOCB status is checked for error
|
|
* status. If there is error status reported, PRLI retry shall be attempted
|
|
* by invoking the lpfc_els_retry() routine. Otherwise, the state
|
|
* NLP_EVT_CMPL_PRLI is sent to the Discover State Machine (DSM) for this
|
|
* ndlp to mark the PRLI completion.
|
|
**/
|
|
static void
|
|
lpfc_cmpl_els_prli(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
|
|
struct lpfc_iocbq *rspiocb)
|
|
{
|
|
struct lpfc_vport *vport = cmdiocb->vport;
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
IOCB_t *irsp;
|
|
struct lpfc_nodelist *ndlp;
|
|
|
|
/* we pass cmdiocb to state machine which needs rspiocb as well */
|
|
cmdiocb->context_un.rsp_iocb = rspiocb;
|
|
|
|
irsp = &(rspiocb->iocb);
|
|
ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
|
|
spin_lock_irq(shost->host_lock);
|
|
ndlp->nlp_flag &= ~NLP_PRLI_SND;
|
|
spin_unlock_irq(shost->host_lock);
|
|
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
|
|
"PRLI cmpl: status:x%x/x%x did:x%x",
|
|
irsp->ulpStatus, irsp->un.ulpWord[4],
|
|
ndlp->nlp_DID);
|
|
/* PRLI completes to NPort <nlp_DID> */
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
|
|
"0103 PRLI completes to NPort x%x "
|
|
"Data: x%x x%x x%x x%x\n",
|
|
ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4],
|
|
irsp->ulpTimeout, vport->num_disc_nodes);
|
|
|
|
vport->fc_prli_sent--;
|
|
/* Check to see if link went down during discovery */
|
|
if (lpfc_els_chk_latt(vport))
|
|
goto out;
|
|
|
|
if (irsp->ulpStatus) {
|
|
/* Check for retry */
|
|
if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
|
|
/* ELS command is being retried */
|
|
goto out;
|
|
}
|
|
/* PRLI failed */
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
|
|
"2754 PRLI failure DID:%06X Status:x%x/x%x\n",
|
|
ndlp->nlp_DID, irsp->ulpStatus,
|
|
irsp->un.ulpWord[4]);
|
|
/* Do not call DSM for lpfc_els_abort'ed ELS cmds */
|
|
if (lpfc_error_lost_link(irsp))
|
|
goto out;
|
|
else
|
|
lpfc_disc_state_machine(vport, ndlp, cmdiocb,
|
|
NLP_EVT_CMPL_PRLI);
|
|
} else
|
|
/* Good status, call state machine */
|
|
lpfc_disc_state_machine(vport, ndlp, cmdiocb,
|
|
NLP_EVT_CMPL_PRLI);
|
|
out:
|
|
lpfc_els_free_iocb(phba, cmdiocb);
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* lpfc_issue_els_prli - Issue a prli iocb command for a vport
|
|
* @vport: pointer to a host virtual N_Port data structure.
|
|
* @ndlp: pointer to a node-list data structure.
|
|
* @retry: number of retries to the command IOCB.
|
|
*
|
|
* This routine issues a Process Login (PRLI) ELS command for the
|
|
* @vport. The PRLI service parameters are set up in the payload of the
|
|
* PRLI Request command and the pointer to lpfc_cmpl_els_prli() routine
|
|
* is put to the IOCB completion callback func field before invoking the
|
|
* routine lpfc_sli_issue_iocb() to send out PRLI command.
|
|
*
|
|
* Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
|
|
* will be incremented by 1 for holding the ndlp and the reference to ndlp
|
|
* will be stored into the context1 field of the IOCB for the completion
|
|
* callback function to the PRLI ELS command.
|
|
*
|
|
* Return code
|
|
* 0 - successfully issued prli iocb command for @vport
|
|
* 1 - failed to issue prli iocb command for @vport
|
|
**/
|
|
int
|
|
lpfc_issue_els_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
|
|
uint8_t retry)
|
|
{
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
struct lpfc_hba *phba = vport->phba;
|
|
PRLI *npr;
|
|
struct lpfc_iocbq *elsiocb;
|
|
uint8_t *pcmd;
|
|
uint16_t cmdsize;
|
|
|
|
cmdsize = (sizeof(uint32_t) + sizeof(PRLI));
|
|
elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
|
|
ndlp->nlp_DID, ELS_CMD_PRLI);
|
|
if (!elsiocb)
|
|
return 1;
|
|
|
|
pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
|
|
|
|
/* For PRLI request, remainder of payload is service parameters */
|
|
memset(pcmd, 0, (sizeof(PRLI) + sizeof(uint32_t)));
|
|
*((uint32_t *) (pcmd)) = ELS_CMD_PRLI;
|
|
pcmd += sizeof(uint32_t);
|
|
|
|
/* For PRLI, remainder of payload is PRLI parameter page */
|
|
npr = (PRLI *) pcmd;
|
|
/*
|
|
* If our firmware version is 3.20 or later,
|
|
* set the following bits for FC-TAPE support.
|
|
*/
|
|
if (phba->vpd.rev.feaLevelHigh >= 0x02) {
|
|
npr->ConfmComplAllowed = 1;
|
|
npr->Retry = 1;
|
|
npr->TaskRetryIdReq = 1;
|
|
}
|
|
npr->estabImagePair = 1;
|
|
npr->readXferRdyDis = 1;
|
|
if (vport->cfg_first_burst_size)
|
|
npr->writeXferRdyDis = 1;
|
|
|
|
/* For FCP support */
|
|
npr->prliType = PRLI_FCP_TYPE;
|
|
npr->initiatorFunc = 1;
|
|
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
|
|
"Issue PRLI: did:x%x",
|
|
ndlp->nlp_DID, 0, 0);
|
|
|
|
phba->fc_stat.elsXmitPRLI++;
|
|
elsiocb->iocb_cmpl = lpfc_cmpl_els_prli;
|
|
spin_lock_irq(shost->host_lock);
|
|
ndlp->nlp_flag |= NLP_PRLI_SND;
|
|
spin_unlock_irq(shost->host_lock);
|
|
if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) ==
|
|
IOCB_ERROR) {
|
|
spin_lock_irq(shost->host_lock);
|
|
ndlp->nlp_flag &= ~NLP_PRLI_SND;
|
|
spin_unlock_irq(shost->host_lock);
|
|
lpfc_els_free_iocb(phba, elsiocb);
|
|
return 1;
|
|
}
|
|
vport->fc_prli_sent++;
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_rscn_disc - Perform rscn discovery for a vport
|
|
* @vport: pointer to a host virtual N_Port data structure.
|
|
*
|
|
* This routine performs Registration State Change Notification (RSCN)
|
|
* discovery for a @vport. If the @vport's node port recovery count is not
|
|
* zero, it will invoke the lpfc_els_disc_plogi() to perform PLOGI for all
|
|
* the nodes that need recovery. If none of the PLOGI were needed through
|
|
* the lpfc_els_disc_plogi() routine, the lpfc_end_rscn() routine shall be
|
|
* invoked to check and handle possible more RSCN came in during the period
|
|
* of processing the current ones.
|
|
**/
|
|
static void
|
|
lpfc_rscn_disc(struct lpfc_vport *vport)
|
|
{
|
|
lpfc_can_disctmo(vport);
|
|
|
|
/* RSCN discovery */
|
|
/* go thru NPR nodes and issue ELS PLOGIs */
|
|
if (vport->fc_npr_cnt)
|
|
if (lpfc_els_disc_plogi(vport))
|
|
return;
|
|
|
|
lpfc_end_rscn(vport);
|
|
}
|
|
|
|
/**
|
|
* lpfc_adisc_done - Complete the adisc phase of discovery
|
|
* @vport: pointer to lpfc_vport hba data structure that finished all ADISCs.
|
|
*
|
|
* This function is called when the final ADISC is completed during discovery.
|
|
* This function handles clearing link attention or issuing reg_vpi depending
|
|
* on whether npiv is enabled. This function also kicks off the PLOGI phase of
|
|
* discovery.
|
|
* This function is called with no locks held.
|
|
**/
|
|
static void
|
|
lpfc_adisc_done(struct lpfc_vport *vport)
|
|
{
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
struct lpfc_hba *phba = vport->phba;
|
|
|
|
/*
|
|
* For NPIV, 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) &&
|
|
(phba->sli_rev < LPFC_SLI_REV4)) {
|
|
/* The ADISCs are complete. Doesn't matter if they
|
|
* succeeded or failed because the ADISC completion
|
|
* routine guarantees to call the state machine and
|
|
* the RPI is either unregistered (failed ADISC response)
|
|
* or the RPI is still valid and the node is marked
|
|
* mapped for a target. The exchanges should be in the
|
|
* correct state. This code is specific to SLI3.
|
|
*/
|
|
lpfc_issue_clear_la(phba, vport);
|
|
lpfc_issue_reg_vpi(phba, vport);
|
|
return;
|
|
}
|
|
/*
|
|
* For SLI2, we need to set port_state to READY
|
|
* and continue discovery.
|
|
*/
|
|
if (vport->port_state < LPFC_VPORT_READY) {
|
|
/* If we get here, there is nothing to ADISC */
|
|
lpfc_issue_clear_la(phba, vport);
|
|
if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) {
|
|
vport->num_disc_nodes = 0;
|
|
/* go thru NPR list, 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);
|
|
lpfc_end_rscn(vport);
|
|
}
|
|
}
|
|
vport->port_state = LPFC_VPORT_READY;
|
|
} else
|
|
lpfc_rscn_disc(vport);
|
|
}
|
|
|
|
/**
|
|
* lpfc_more_adisc - Issue more adisc as needed
|
|
* @vport: pointer to a host virtual N_Port data structure.
|
|
*
|
|
* This routine determines whether there are more ndlps on a @vport
|
|
* node list need to have Address Discover (ADISC) issued. If so, it will
|
|
* invoke the lpfc_els_disc_adisc() routine to issue ADISC on the @vport's
|
|
* remaining nodes which need to have ADISC sent.
|
|
**/
|
|
void
|
|
lpfc_more_adisc(struct lpfc_vport *vport)
|
|
{
|
|
if (vport->num_disc_nodes)
|
|
vport->num_disc_nodes--;
|
|
/* Continue discovery with <num_disc_nodes> ADISCs to go */
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
|
|
"0210 Continue discovery with %d ADISCs to go "
|
|
"Data: x%x x%x x%x\n",
|
|
vport->num_disc_nodes, vport->fc_adisc_cnt,
|
|
vport->fc_flag, vport->port_state);
|
|
/* Check to see if there are more ADISCs to be sent */
|
|
if (vport->fc_flag & FC_NLP_MORE) {
|
|
lpfc_set_disctmo(vport);
|
|
/* go thru NPR nodes and issue any remaining ELS ADISCs */
|
|
lpfc_els_disc_adisc(vport);
|
|
}
|
|
if (!vport->num_disc_nodes)
|
|
lpfc_adisc_done(vport);
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* lpfc_cmpl_els_adisc - Completion callback function for adisc
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @cmdiocb: pointer to lpfc command iocb data structure.
|
|
* @rspiocb: pointer to lpfc response iocb data structure.
|
|
*
|
|
* This routine is the completion function for issuing the Address Discover
|
|
* (ADISC) command. It first checks to see whether link went down during
|
|
* the discovery process. If so, the node will be marked as node port
|
|
* recovery for issuing discover IOCB by the link attention handler and
|
|
* exit. Otherwise, the response status is checked. If error was reported
|
|
* in the response status, the ADISC command shall be retried by invoking
|
|
* the lpfc_els_retry() routine. Otherwise, if no error was reported in
|
|
* the response status, the state machine is invoked to set transition
|
|
* with respect to NLP_EVT_CMPL_ADISC event.
|
|
**/
|
|
static void
|
|
lpfc_cmpl_els_adisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
|
|
struct lpfc_iocbq *rspiocb)
|
|
{
|
|
struct lpfc_vport *vport = cmdiocb->vport;
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
IOCB_t *irsp;
|
|
struct lpfc_nodelist *ndlp;
|
|
int disc;
|
|
|
|
/* we pass cmdiocb to state machine which needs rspiocb as well */
|
|
cmdiocb->context_un.rsp_iocb = rspiocb;
|
|
|
|
irsp = &(rspiocb->iocb);
|
|
ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
|
|
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
|
|
"ADISC cmpl: status:x%x/x%x did:x%x",
|
|
irsp->ulpStatus, irsp->un.ulpWord[4],
|
|
ndlp->nlp_DID);
|
|
|
|
/* Since ndlp can be freed in the disc state machine, note if this node
|
|
* is being used during discovery.
|
|
*/
|
|
spin_lock_irq(shost->host_lock);
|
|
disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC);
|
|
ndlp->nlp_flag &= ~(NLP_ADISC_SND | NLP_NPR_2B_DISC);
|
|
spin_unlock_irq(shost->host_lock);
|
|
/* ADISC completes to NPort <nlp_DID> */
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
|
|
"0104 ADISC completes to NPort x%x "
|
|
"Data: x%x x%x x%x x%x x%x\n",
|
|
ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4],
|
|
irsp->ulpTimeout, disc, vport->num_disc_nodes);
|
|
/* Check to see if link went down during discovery */
|
|
if (lpfc_els_chk_latt(vport)) {
|
|
spin_lock_irq(shost->host_lock);
|
|
ndlp->nlp_flag |= NLP_NPR_2B_DISC;
|
|
spin_unlock_irq(shost->host_lock);
|
|
goto out;
|
|
}
|
|
|
|
if (irsp->ulpStatus) {
|
|
/* Check for retry */
|
|
if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
|
|
/* ELS command is being retried */
|
|
if (disc) {
|
|
spin_lock_irq(shost->host_lock);
|
|
ndlp->nlp_flag |= NLP_NPR_2B_DISC;
|
|
spin_unlock_irq(shost->host_lock);
|
|
lpfc_set_disctmo(vport);
|
|
}
|
|
goto out;
|
|
}
|
|
/* ADISC failed */
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
|
|
"2755 ADISC failure DID:%06X Status:x%x/x%x\n",
|
|
ndlp->nlp_DID, irsp->ulpStatus,
|
|
irsp->un.ulpWord[4]);
|
|
/* Do not call DSM for lpfc_els_abort'ed ELS cmds */
|
|
if (!lpfc_error_lost_link(irsp))
|
|
lpfc_disc_state_machine(vport, ndlp, cmdiocb,
|
|
NLP_EVT_CMPL_ADISC);
|
|
} else
|
|
/* Good status, call state machine */
|
|
lpfc_disc_state_machine(vport, ndlp, cmdiocb,
|
|
NLP_EVT_CMPL_ADISC);
|
|
|
|
/* Check to see if there are more ADISCs to be sent */
|
|
if (disc && vport->num_disc_nodes)
|
|
lpfc_more_adisc(vport);
|
|
out:
|
|
lpfc_els_free_iocb(phba, cmdiocb);
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* lpfc_issue_els_adisc - Issue an address discover iocb to an node on a vport
|
|
* @vport: pointer to a virtual N_Port data structure.
|
|
* @ndlp: pointer to a node-list data structure.
|
|
* @retry: number of retries to the command IOCB.
|
|
*
|
|
* This routine issues an Address Discover (ADISC) for an @ndlp on a
|
|
* @vport. It prepares the payload of the ADISC ELS command, updates the
|
|
* and states of the ndlp, and invokes the lpfc_sli_issue_iocb() routine
|
|
* to issue the ADISC ELS command.
|
|
*
|
|
* Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
|
|
* will be incremented by 1 for holding the ndlp and the reference to ndlp
|
|
* will be stored into the context1 field of the IOCB for the completion
|
|
* callback function to the ADISC ELS command.
|
|
*
|
|
* Return code
|
|
* 0 - successfully issued adisc
|
|
* 1 - failed to issue adisc
|
|
**/
|
|
int
|
|
lpfc_issue_els_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
|
|
uint8_t retry)
|
|
{
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
struct lpfc_hba *phba = vport->phba;
|
|
ADISC *ap;
|
|
struct lpfc_iocbq *elsiocb;
|
|
uint8_t *pcmd;
|
|
uint16_t cmdsize;
|
|
|
|
cmdsize = (sizeof(uint32_t) + sizeof(ADISC));
|
|
elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
|
|
ndlp->nlp_DID, ELS_CMD_ADISC);
|
|
if (!elsiocb)
|
|
return 1;
|
|
|
|
pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
|
|
|
|
/* For ADISC request, remainder of payload is service parameters */
|
|
*((uint32_t *) (pcmd)) = ELS_CMD_ADISC;
|
|
pcmd += sizeof(uint32_t);
|
|
|
|
/* Fill in ADISC payload */
|
|
ap = (ADISC *) pcmd;
|
|
ap->hardAL_PA = phba->fc_pref_ALPA;
|
|
memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name));
|
|
memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name));
|
|
ap->DID = be32_to_cpu(vport->fc_myDID);
|
|
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
|
|
"Issue ADISC: did:x%x",
|
|
ndlp->nlp_DID, 0, 0);
|
|
|
|
phba->fc_stat.elsXmitADISC++;
|
|
elsiocb->iocb_cmpl = lpfc_cmpl_els_adisc;
|
|
spin_lock_irq(shost->host_lock);
|
|
ndlp->nlp_flag |= NLP_ADISC_SND;
|
|
spin_unlock_irq(shost->host_lock);
|
|
if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) ==
|
|
IOCB_ERROR) {
|
|
spin_lock_irq(shost->host_lock);
|
|
ndlp->nlp_flag &= ~NLP_ADISC_SND;
|
|
spin_unlock_irq(shost->host_lock);
|
|
lpfc_els_free_iocb(phba, elsiocb);
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_cmpl_els_logo - Completion callback function for logo
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @cmdiocb: pointer to lpfc command iocb data structure.
|
|
* @rspiocb: pointer to lpfc response iocb data structure.
|
|
*
|
|
* This routine is the completion function for issuing the ELS Logout (LOGO)
|
|
* command. If no error status was reported from the LOGO response, the
|
|
* state machine of the associated ndlp shall be invoked for transition with
|
|
* respect to NLP_EVT_CMPL_LOGO event. Otherwise, if error status was reported,
|
|
* the lpfc_els_retry() routine will be invoked to retry the LOGO command.
|
|
**/
|
|
static void
|
|
lpfc_cmpl_els_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
|
|
struct lpfc_iocbq *rspiocb)
|
|
{
|
|
struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
|
|
struct lpfc_vport *vport = ndlp->vport;
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
IOCB_t *irsp;
|
|
struct lpfcMboxq *mbox;
|
|
unsigned long flags;
|
|
uint32_t skip_recovery = 0;
|
|
|
|
/* we pass cmdiocb to state machine which needs rspiocb as well */
|
|
cmdiocb->context_un.rsp_iocb = rspiocb;
|
|
|
|
irsp = &(rspiocb->iocb);
|
|
spin_lock_irq(shost->host_lock);
|
|
ndlp->nlp_flag &= ~NLP_LOGO_SND;
|
|
spin_unlock_irq(shost->host_lock);
|
|
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
|
|
"LOGO cmpl: status:x%x/x%x did:x%x",
|
|
irsp->ulpStatus, irsp->un.ulpWord[4],
|
|
ndlp->nlp_DID);
|
|
|
|
/* LOGO completes to NPort <nlp_DID> */
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
|
|
"0105 LOGO completes to NPort x%x "
|
|
"Data: x%x x%x x%x x%x\n",
|
|
ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4],
|
|
irsp->ulpTimeout, vport->num_disc_nodes);
|
|
|
|
if (lpfc_els_chk_latt(vport)) {
|
|
skip_recovery = 1;
|
|
goto out;
|
|
}
|
|
|
|
/* Check to see if link went down during discovery */
|
|
if (ndlp->nlp_flag & NLP_TARGET_REMOVE) {
|
|
/* NLP_EVT_DEVICE_RM should unregister the RPI
|
|
* which should abort all outstanding IOs.
|
|
*/
|
|
lpfc_disc_state_machine(vport, ndlp, cmdiocb,
|
|
NLP_EVT_DEVICE_RM);
|
|
skip_recovery = 1;
|
|
goto out;
|
|
}
|
|
|
|
if (irsp->ulpStatus) {
|
|
/* Check for retry */
|
|
if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
|
|
/* ELS command is being retried */
|
|
skip_recovery = 1;
|
|
goto out;
|
|
}
|
|
/* LOGO failed */
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
|
|
"2756 LOGO failure DID:%06X Status:x%x/x%x\n",
|
|
ndlp->nlp_DID, irsp->ulpStatus,
|
|
irsp->un.ulpWord[4]);
|
|
/* Do not call DSM for lpfc_els_abort'ed ELS cmds */
|
|
if (lpfc_error_lost_link(irsp)) {
|
|
skip_recovery = 1;
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
/* Call state machine. This will unregister the rpi if needed. */
|
|
lpfc_disc_state_machine(vport, ndlp, cmdiocb, NLP_EVT_CMPL_LOGO);
|
|
|
|
out:
|
|
lpfc_els_free_iocb(phba, cmdiocb);
|
|
/* If we are in pt2pt mode, we could rcv new S_ID on PLOGI */
|
|
if ((vport->fc_flag & FC_PT2PT) &&
|
|
!(vport->fc_flag & FC_PT2PT_PLOGI)) {
|
|
phba->pport->fc_myDID = 0;
|
|
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (mbox) {
|
|
lpfc_config_link(phba, mbox);
|
|
mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
|
|
mbox->vport = vport;
|
|
if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) ==
|
|
MBX_NOT_FINISHED) {
|
|
mempool_free(mbox, phba->mbox_mem_pool);
|
|
skip_recovery = 1;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* If the node is a target, the handling attempts to recover the port.
|
|
* For any other port type, the rpi is unregistered as an implicit
|
|
* LOGO.
|
|
*/
|
|
if ((ndlp->nlp_type & NLP_FCP_TARGET) && (skip_recovery == 0)) {
|
|
lpfc_cancel_retry_delay_tmo(vport, ndlp);
|
|
spin_lock_irqsave(shost->host_lock, flags);
|
|
ndlp->nlp_flag |= NLP_NPR_2B_DISC;
|
|
spin_unlock_irqrestore(shost->host_lock, flags);
|
|
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
|
|
"3187 LOGO completes to NPort x%x: Start "
|
|
"Recovery Data: x%x x%x x%x x%x\n",
|
|
ndlp->nlp_DID, irsp->ulpStatus,
|
|
irsp->un.ulpWord[4], irsp->ulpTimeout,
|
|
vport->num_disc_nodes);
|
|
lpfc_disc_start(vport);
|
|
}
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* lpfc_issue_els_logo - Issue a logo to an node on a vport
|
|
* @vport: pointer to a virtual N_Port data structure.
|
|
* @ndlp: pointer to a node-list data structure.
|
|
* @retry: number of retries to the command IOCB.
|
|
*
|
|
* This routine constructs and issues an ELS Logout (LOGO) iocb command
|
|
* to a remote node, referred by an @ndlp on a @vport. It constructs the
|
|
* payload of the IOCB, properly sets up the @ndlp state, and invokes the
|
|
* lpfc_sli_issue_iocb() routine to send out the LOGO ELS command.
|
|
*
|
|
* Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
|
|
* will be incremented by 1 for holding the ndlp and the reference to ndlp
|
|
* will be stored into the context1 field of the IOCB for the completion
|
|
* callback function to the LOGO ELS command.
|
|
*
|
|
* Return code
|
|
* 0 - successfully issued logo
|
|
* 1 - failed to issue logo
|
|
**/
|
|
int
|
|
lpfc_issue_els_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
|
|
uint8_t retry)
|
|
{
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
struct lpfc_hba *phba = vport->phba;
|
|
struct lpfc_iocbq *elsiocb;
|
|
uint8_t *pcmd;
|
|
uint16_t cmdsize;
|
|
int rc;
|
|
|
|
spin_lock_irq(shost->host_lock);
|
|
if (ndlp->nlp_flag & NLP_LOGO_SND) {
|
|
spin_unlock_irq(shost->host_lock);
|
|
return 0;
|
|
}
|
|
spin_unlock_irq(shost->host_lock);
|
|
|
|
cmdsize = (2 * sizeof(uint32_t)) + sizeof(struct lpfc_name);
|
|
elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
|
|
ndlp->nlp_DID, ELS_CMD_LOGO);
|
|
if (!elsiocb)
|
|
return 1;
|
|
|
|
pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
|
|
*((uint32_t *) (pcmd)) = ELS_CMD_LOGO;
|
|
pcmd += sizeof(uint32_t);
|
|
|
|
/* Fill in LOGO payload */
|
|
*((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID);
|
|
pcmd += sizeof(uint32_t);
|
|
memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name));
|
|
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
|
|
"Issue LOGO: did:x%x",
|
|
ndlp->nlp_DID, 0, 0);
|
|
|
|
/*
|
|
* If we are issuing a LOGO, we may try to recover the remote NPort
|
|
* by issuing a PLOGI later. Even though we issue ELS cmds by the
|
|
* VPI, if we have a valid RPI, and that RPI gets unreg'ed while
|
|
* that ELS command is in-flight, the HBA returns a IOERR_INVALID_RPI
|
|
* for that ELS cmd. To avoid this situation, lets get rid of the
|
|
* RPI right now, before any ELS cmds are sent.
|
|
*/
|
|
spin_lock_irq(shost->host_lock);
|
|
ndlp->nlp_flag |= NLP_ISSUE_LOGO;
|
|
spin_unlock_irq(shost->host_lock);
|
|
if (lpfc_unreg_rpi(vport, ndlp)) {
|
|
lpfc_els_free_iocb(phba, elsiocb);
|
|
return 0;
|
|
}
|
|
|
|
phba->fc_stat.elsXmitLOGO++;
|
|
elsiocb->iocb_cmpl = lpfc_cmpl_els_logo;
|
|
spin_lock_irq(shost->host_lock);
|
|
ndlp->nlp_flag |= NLP_LOGO_SND;
|
|
ndlp->nlp_flag &= ~NLP_ISSUE_LOGO;
|
|
spin_unlock_irq(shost->host_lock);
|
|
rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
|
|
|
|
if (rc == IOCB_ERROR) {
|
|
spin_lock_irq(shost->host_lock);
|
|
ndlp->nlp_flag &= ~NLP_LOGO_SND;
|
|
spin_unlock_irq(shost->host_lock);
|
|
lpfc_els_free_iocb(phba, elsiocb);
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_cmpl_els_cmd - Completion callback function for generic els command
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @cmdiocb: pointer to lpfc command iocb data structure.
|
|
* @rspiocb: pointer to lpfc response iocb data structure.
|
|
*
|
|
* This routine is a generic completion callback function for ELS commands.
|
|
* Specifically, it is the callback function which does not need to perform
|
|
* any command specific operations. It is currently used by the ELS command
|
|
* issuing routines for the ELS State Change Request (SCR),
|
|
* lpfc_issue_els_scr(), and the ELS Fibre Channel Address Resolution
|
|
* Protocol Response (FARPR) routine, lpfc_issue_els_farpr(). Other than
|
|
* certain debug loggings, this callback function simply invokes the
|
|
* lpfc_els_chk_latt() routine to check whether link went down during the
|
|
* discovery process.
|
|
**/
|
|
static void
|
|
lpfc_cmpl_els_cmd(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
|
|
struct lpfc_iocbq *rspiocb)
|
|
{
|
|
struct lpfc_vport *vport = cmdiocb->vport;
|
|
IOCB_t *irsp;
|
|
|
|
irsp = &rspiocb->iocb;
|
|
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
|
|
"ELS cmd cmpl: status:x%x/x%x did:x%x",
|
|
irsp->ulpStatus, irsp->un.ulpWord[4],
|
|
irsp->un.elsreq64.remoteID);
|
|
/* ELS cmd tag <ulpIoTag> completes */
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
|
|
"0106 ELS cmd tag x%x completes Data: x%x x%x x%x\n",
|
|
irsp->ulpIoTag, irsp->ulpStatus,
|
|
irsp->un.ulpWord[4], irsp->ulpTimeout);
|
|
/* Check to see if link went down during discovery */
|
|
lpfc_els_chk_latt(vport);
|
|
lpfc_els_free_iocb(phba, cmdiocb);
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* lpfc_issue_els_scr - Issue a scr to an node on a vport
|
|
* @vport: pointer to a host virtual N_Port data structure.
|
|
* @nportid: N_Port identifier to the remote node.
|
|
* @retry: number of retries to the command IOCB.
|
|
*
|
|
* This routine issues a State Change Request (SCR) to a fabric node
|
|
* on a @vport. The remote node @nportid is passed into the function. It
|
|
* first search the @vport node list to find the matching ndlp. If no such
|
|
* ndlp is found, a new ndlp shall be created for this (SCR) purpose. An
|
|
* IOCB is allocated, payload prepared, and the lpfc_sli_issue_iocb()
|
|
* routine is invoked to send the SCR IOCB.
|
|
*
|
|
* Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
|
|
* will be incremented by 1 for holding the ndlp and the reference to ndlp
|
|
* will be stored into the context1 field of the IOCB for the completion
|
|
* callback function to the SCR ELS command.
|
|
*
|
|
* Return code
|
|
* 0 - Successfully issued scr command
|
|
* 1 - Failed to issue scr command
|
|
**/
|
|
int
|
|
lpfc_issue_els_scr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry)
|
|
{
|
|
struct lpfc_hba *phba = vport->phba;
|
|
struct lpfc_iocbq *elsiocb;
|
|
uint8_t *pcmd;
|
|
uint16_t cmdsize;
|
|
struct lpfc_nodelist *ndlp;
|
|
|
|
cmdsize = (sizeof(uint32_t) + sizeof(SCR));
|
|
|
|
ndlp = lpfc_findnode_did(vport, nportid);
|
|
if (!ndlp) {
|
|
ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
|
|
if (!ndlp)
|
|
return 1;
|
|
lpfc_nlp_init(vport, ndlp, nportid);
|
|
lpfc_enqueue_node(vport, ndlp);
|
|
} else if (!NLP_CHK_NODE_ACT(ndlp)) {
|
|
ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
|
|
if (!ndlp)
|
|
return 1;
|
|
}
|
|
|
|
elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
|
|
ndlp->nlp_DID, ELS_CMD_SCR);
|
|
|
|
if (!elsiocb) {
|
|
/* This will trigger the release of the node just
|
|
* allocated
|
|
*/
|
|
lpfc_nlp_put(ndlp);
|
|
return 1;
|
|
}
|
|
|
|
pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
|
|
|
|
*((uint32_t *) (pcmd)) = ELS_CMD_SCR;
|
|
pcmd += sizeof(uint32_t);
|
|
|
|
/* For SCR, remainder of payload is SCR parameter page */
|
|
memset(pcmd, 0, sizeof(SCR));
|
|
((SCR *) pcmd)->Function = SCR_FUNC_FULL;
|
|
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
|
|
"Issue SCR: did:x%x",
|
|
ndlp->nlp_DID, 0, 0);
|
|
|
|
phba->fc_stat.elsXmitSCR++;
|
|
elsiocb->iocb_cmpl = lpfc_cmpl_els_cmd;
|
|
if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) ==
|
|
IOCB_ERROR) {
|
|
/* The additional lpfc_nlp_put will cause the following
|
|
* lpfc_els_free_iocb routine to trigger the rlease of
|
|
* the node.
|
|
*/
|
|
lpfc_nlp_put(ndlp);
|
|
lpfc_els_free_iocb(phba, elsiocb);
|
|
return 1;
|
|
}
|
|
/* This will cause the callback-function lpfc_cmpl_els_cmd to
|
|
* trigger the release of node.
|
|
*/
|
|
|
|
lpfc_nlp_put(ndlp);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_issue_els_farpr - Issue a farp to an node on a vport
|
|
* @vport: pointer to a host virtual N_Port data structure.
|
|
* @nportid: N_Port identifier to the remote node.
|
|
* @retry: number of retries to the command IOCB.
|
|
*
|
|
* This routine issues a Fibre Channel Address Resolution Response
|
|
* (FARPR) to a node on a vport. The remote node N_Port identifier (@nportid)
|
|
* is passed into the function. It first search the @vport node list to find
|
|
* the matching ndlp. If no such ndlp is found, a new ndlp shall be created
|
|
* for this (FARPR) purpose. An IOCB is allocated, payload prepared, and the
|
|
* lpfc_sli_issue_iocb() routine is invoked to send the FARPR ELS command.
|
|
*
|
|
* Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
|
|
* will be incremented by 1 for holding the ndlp and the reference to ndlp
|
|
* will be stored into the context1 field of the IOCB for the completion
|
|
* callback function to the PARPR ELS command.
|
|
*
|
|
* Return code
|
|
* 0 - Successfully issued farpr command
|
|
* 1 - Failed to issue farpr command
|
|
**/
|
|
static int
|
|
lpfc_issue_els_farpr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry)
|
|
{
|
|
struct lpfc_hba *phba = vport->phba;
|
|
struct lpfc_iocbq *elsiocb;
|
|
FARP *fp;
|
|
uint8_t *pcmd;
|
|
uint32_t *lp;
|
|
uint16_t cmdsize;
|
|
struct lpfc_nodelist *ondlp;
|
|
struct lpfc_nodelist *ndlp;
|
|
|
|
cmdsize = (sizeof(uint32_t) + sizeof(FARP));
|
|
|
|
ndlp = lpfc_findnode_did(vport, nportid);
|
|
if (!ndlp) {
|
|
ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
|
|
if (!ndlp)
|
|
return 1;
|
|
lpfc_nlp_init(vport, ndlp, nportid);
|
|
lpfc_enqueue_node(vport, ndlp);
|
|
} else if (!NLP_CHK_NODE_ACT(ndlp)) {
|
|
ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
|
|
if (!ndlp)
|
|
return 1;
|
|
}
|
|
|
|
elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
|
|
ndlp->nlp_DID, ELS_CMD_RNID);
|
|
if (!elsiocb) {
|
|
/* This will trigger the release of the node just
|
|
* allocated
|
|
*/
|
|
lpfc_nlp_put(ndlp);
|
|
return 1;
|
|
}
|
|
|
|
pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
|
|
|
|
*((uint32_t *) (pcmd)) = ELS_CMD_FARPR;
|
|
pcmd += sizeof(uint32_t);
|
|
|
|
/* Fill in FARPR payload */
|
|
fp = (FARP *) (pcmd);
|
|
memset(fp, 0, sizeof(FARP));
|
|
lp = (uint32_t *) pcmd;
|
|
*lp++ = be32_to_cpu(nportid);
|
|
*lp++ = be32_to_cpu(vport->fc_myDID);
|
|
fp->Rflags = 0;
|
|
fp->Mflags = (FARP_MATCH_PORT | FARP_MATCH_NODE);
|
|
|
|
memcpy(&fp->RportName, &vport->fc_portname, sizeof(struct lpfc_name));
|
|
memcpy(&fp->RnodeName, &vport->fc_nodename, sizeof(struct lpfc_name));
|
|
ondlp = lpfc_findnode_did(vport, nportid);
|
|
if (ondlp && NLP_CHK_NODE_ACT(ondlp)) {
|
|
memcpy(&fp->OportName, &ondlp->nlp_portname,
|
|
sizeof(struct lpfc_name));
|
|
memcpy(&fp->OnodeName, &ondlp->nlp_nodename,
|
|
sizeof(struct lpfc_name));
|
|
}
|
|
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
|
|
"Issue FARPR: did:x%x",
|
|
ndlp->nlp_DID, 0, 0);
|
|
|
|
phba->fc_stat.elsXmitFARPR++;
|
|
elsiocb->iocb_cmpl = lpfc_cmpl_els_cmd;
|
|
if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) ==
|
|
IOCB_ERROR) {
|
|
/* The additional lpfc_nlp_put will cause the following
|
|
* lpfc_els_free_iocb routine to trigger the release of
|
|
* the node.
|
|
*/
|
|
lpfc_nlp_put(ndlp);
|
|
lpfc_els_free_iocb(phba, elsiocb);
|
|
return 1;
|
|
}
|
|
/* This will cause the callback-function lpfc_cmpl_els_cmd to
|
|
* trigger the release of the node.
|
|
*/
|
|
lpfc_nlp_put(ndlp);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_cancel_retry_delay_tmo - Cancel the timer with delayed iocb-cmd retry
|
|
* @vport: pointer to a host virtual N_Port data structure.
|
|
* @nlp: pointer to a node-list data structure.
|
|
*
|
|
* This routine cancels the timer with a delayed IOCB-command retry for
|
|
* a @vport's @ndlp. It stops the timer for the delayed function retrial and
|
|
* removes the ELS retry event if it presents. In addition, if the
|
|
* NLP_NPR_2B_DISC bit is set in the @nlp's nlp_flag bitmap, ADISC IOCB
|
|
* commands are sent for the @vport's nodes that require issuing discovery
|
|
* ADISC.
|
|
**/
|
|
void
|
|
lpfc_cancel_retry_delay_tmo(struct lpfc_vport *vport, struct lpfc_nodelist *nlp)
|
|
{
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
struct lpfc_work_evt *evtp;
|
|
|
|
if (!(nlp->nlp_flag & NLP_DELAY_TMO))
|
|
return;
|
|
spin_lock_irq(shost->host_lock);
|
|
nlp->nlp_flag &= ~NLP_DELAY_TMO;
|
|
spin_unlock_irq(shost->host_lock);
|
|
del_timer_sync(&nlp->nlp_delayfunc);
|
|
nlp->nlp_last_elscmd = 0;
|
|
if (!list_empty(&nlp->els_retry_evt.evt_listp)) {
|
|
list_del_init(&nlp->els_retry_evt.evt_listp);
|
|
/* Decrement nlp reference count held for the delayed retry */
|
|
evtp = &nlp->els_retry_evt;
|
|
lpfc_nlp_put((struct lpfc_nodelist *)evtp->evt_arg1);
|
|
}
|
|
if (nlp->nlp_flag & NLP_NPR_2B_DISC) {
|
|
spin_lock_irq(shost->host_lock);
|
|
nlp->nlp_flag &= ~NLP_NPR_2B_DISC;
|
|
spin_unlock_irq(shost->host_lock);
|
|
if (vport->num_disc_nodes) {
|
|
if (vport->port_state < LPFC_VPORT_READY) {
|
|
/* Check if there are more ADISCs to be sent */
|
|
lpfc_more_adisc(vport);
|
|
} else {
|
|
/* Check if there are more PLOGIs to be sent */
|
|
lpfc_more_plogi(vport);
|
|
if (vport->num_disc_nodes == 0) {
|
|
spin_lock_irq(shost->host_lock);
|
|
vport->fc_flag &= ~FC_NDISC_ACTIVE;
|
|
spin_unlock_irq(shost->host_lock);
|
|
lpfc_can_disctmo(vport);
|
|
lpfc_end_rscn(vport);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* lpfc_els_retry_delay - Timer function with a ndlp delayed function timer
|
|
* @ptr: holder for the pointer to the timer function associated data (ndlp).
|
|
*
|
|
* This routine is invoked by the ndlp delayed-function timer to check
|
|
* whether there is any pending ELS retry event(s) with the node. If not, it
|
|
* simply returns. Otherwise, if there is at least one ELS delayed event, it
|
|
* adds the delayed events to the HBA work list and invokes the
|
|
* lpfc_worker_wake_up() routine to wake up worker thread to process the
|
|
* event. Note that lpfc_nlp_get() is called before posting the event to
|
|
* the work list to hold reference count of ndlp so that it guarantees the
|
|
* reference to ndlp will still be available when the worker thread gets
|
|
* to the event associated with the ndlp.
|
|
**/
|
|
void
|
|
lpfc_els_retry_delay(unsigned long ptr)
|
|
{
|
|
struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) ptr;
|
|
struct lpfc_vport *vport = ndlp->vport;
|
|
struct lpfc_hba *phba = vport->phba;
|
|
unsigned long flags;
|
|
struct lpfc_work_evt *evtp = &ndlp->els_retry_evt;
|
|
|
|
spin_lock_irqsave(&phba->hbalock, flags);
|
|
if (!list_empty(&evtp->evt_listp)) {
|
|
spin_unlock_irqrestore(&phba->hbalock, flags);
|
|
return;
|
|
}
|
|
|
|
/* We need to hold the node by incrementing the reference
|
|
* count until the queued work is done
|
|
*/
|
|
evtp->evt_arg1 = lpfc_nlp_get(ndlp);
|
|
if (evtp->evt_arg1) {
|
|
evtp->evt = LPFC_EVT_ELS_RETRY;
|
|
list_add_tail(&evtp->evt_listp, &phba->work_list);
|
|
lpfc_worker_wake_up(phba);
|
|
}
|
|
spin_unlock_irqrestore(&phba->hbalock, flags);
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* lpfc_els_retry_delay_handler - Work thread handler for ndlp delayed function
|
|
* @ndlp: pointer to a node-list data structure.
|
|
*
|
|
* This routine is the worker-thread handler for processing the @ndlp delayed
|
|
* event(s), posted by the lpfc_els_retry_delay() routine. It simply retrieves
|
|
* the last ELS command from the associated ndlp and invokes the proper ELS
|
|
* function according to the delayed ELS command to retry the command.
|
|
**/
|
|
void
|
|
lpfc_els_retry_delay_handler(struct lpfc_nodelist *ndlp)
|
|
{
|
|
struct lpfc_vport *vport = ndlp->vport;
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
uint32_t cmd, retry;
|
|
|
|
spin_lock_irq(shost->host_lock);
|
|
cmd = ndlp->nlp_last_elscmd;
|
|
ndlp->nlp_last_elscmd = 0;
|
|
|
|
if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
|
|
spin_unlock_irq(shost->host_lock);
|
|
return;
|
|
}
|
|
|
|
ndlp->nlp_flag &= ~NLP_DELAY_TMO;
|
|
spin_unlock_irq(shost->host_lock);
|
|
/*
|
|
* If a discovery event readded nlp_delayfunc after timer
|
|
* firing and before processing the timer, cancel the
|
|
* nlp_delayfunc.
|
|
*/
|
|
del_timer_sync(&ndlp->nlp_delayfunc);
|
|
retry = ndlp->nlp_retry;
|
|
ndlp->nlp_retry = 0;
|
|
|
|
switch (cmd) {
|
|
case ELS_CMD_FLOGI:
|
|
lpfc_issue_els_flogi(vport, ndlp, retry);
|
|
break;
|
|
case ELS_CMD_PLOGI:
|
|
if (!lpfc_issue_els_plogi(vport, ndlp->nlp_DID, retry)) {
|
|
ndlp->nlp_prev_state = ndlp->nlp_state;
|
|
lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
|
|
}
|
|
break;
|
|
case ELS_CMD_ADISC:
|
|
if (!lpfc_issue_els_adisc(vport, ndlp, retry)) {
|
|
ndlp->nlp_prev_state = ndlp->nlp_state;
|
|
lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
|
|
}
|
|
break;
|
|
case ELS_CMD_PRLI:
|
|
if (!lpfc_issue_els_prli(vport, ndlp, retry)) {
|
|
ndlp->nlp_prev_state = ndlp->nlp_state;
|
|
lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE);
|
|
}
|
|
break;
|
|
case ELS_CMD_LOGO:
|
|
if (!lpfc_issue_els_logo(vport, ndlp, retry)) {
|
|
ndlp->nlp_prev_state = ndlp->nlp_state;
|
|
lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE);
|
|
}
|
|
break;
|
|
case ELS_CMD_FDISC:
|
|
if (!(vport->fc_flag & FC_VPORT_NEEDS_INIT_VPI))
|
|
lpfc_issue_els_fdisc(vport, ndlp, retry);
|
|
break;
|
|
}
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* lpfc_els_retry - Make retry decision on an els command iocb
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @cmdiocb: pointer to lpfc command iocb data structure.
|
|
* @rspiocb: pointer to lpfc response iocb data structure.
|
|
*
|
|
* This routine makes a retry decision on an ELS command IOCB, which has
|
|
* failed. The following ELS IOCBs use this function for retrying the command
|
|
* when previously issued command responsed with error status: FLOGI, PLOGI,
|
|
* PRLI, ADISC, LOGO, and FDISC. Based on the ELS command type and the
|
|
* returned error status, it makes the decision whether a retry shall be
|
|
* issued for the command, and whether a retry shall be made immediately or
|
|
* delayed. In the former case, the corresponding ELS command issuing-function
|
|
* is called to retry the command. In the later case, the ELS command shall
|
|
* be posted to the ndlp delayed event and delayed function timer set to the
|
|
* ndlp for the delayed command issusing.
|
|
*
|
|
* Return code
|
|
* 0 - No retry of els command is made
|
|
* 1 - Immediate or delayed retry of els command is made
|
|
**/
|
|
static int
|
|
lpfc_els_retry(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
|
|
struct lpfc_iocbq *rspiocb)
|
|
{
|
|
struct lpfc_vport *vport = cmdiocb->vport;
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
IOCB_t *irsp = &rspiocb->iocb;
|
|
struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
|
|
struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
|
|
uint32_t *elscmd;
|
|
struct ls_rjt stat;
|
|
int retry = 0, maxretry = lpfc_max_els_tries, delay = 0;
|
|
int logerr = 0;
|
|
uint32_t cmd = 0;
|
|
uint32_t did;
|
|
|
|
|
|
/* Note: context2 may be 0 for internal driver abort
|
|
* of delays ELS command.
|
|
*/
|
|
|
|
if (pcmd && pcmd->virt) {
|
|
elscmd = (uint32_t *) (pcmd->virt);
|
|
cmd = *elscmd++;
|
|
}
|
|
|
|
if (ndlp && NLP_CHK_NODE_ACT(ndlp))
|
|
did = ndlp->nlp_DID;
|
|
else {
|
|
/* We should only hit this case for retrying PLOGI */
|
|
did = irsp->un.elsreq64.remoteID;
|
|
ndlp = lpfc_findnode_did(vport, did);
|
|
if ((!ndlp || !NLP_CHK_NODE_ACT(ndlp))
|
|
&& (cmd != ELS_CMD_PLOGI))
|
|
return 1;
|
|
}
|
|
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
|
|
"Retry ELS: wd7:x%x wd4:x%x did:x%x",
|
|
*(((uint32_t *) irsp) + 7), irsp->un.ulpWord[4], ndlp->nlp_DID);
|
|
|
|
switch (irsp->ulpStatus) {
|
|
case IOSTAT_FCP_RSP_ERROR:
|
|
break;
|
|
case IOSTAT_REMOTE_STOP:
|
|
if (phba->sli_rev == LPFC_SLI_REV4) {
|
|
/* This IO was aborted by the target, we don't
|
|
* know the rxid and because we did not send the
|
|
* ABTS we cannot generate and RRQ.
|
|
*/
|
|
lpfc_set_rrq_active(phba, ndlp,
|
|
cmdiocb->sli4_lxritag, 0, 0);
|
|
}
|
|
break;
|
|
case IOSTAT_LOCAL_REJECT:
|
|
switch ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK)) {
|
|
case IOERR_LOOP_OPEN_FAILURE:
|
|
if (cmd == ELS_CMD_FLOGI) {
|
|
if (PCI_DEVICE_ID_HORNET ==
|
|
phba->pcidev->device) {
|
|
phba->fc_topology = LPFC_TOPOLOGY_LOOP;
|
|
phba->pport->fc_myDID = 0;
|
|
phba->alpa_map[0] = 0;
|
|
phba->alpa_map[1] = 0;
|
|
}
|
|
}
|
|
if (cmd == ELS_CMD_PLOGI && cmdiocb->retry == 0)
|
|
delay = 1000;
|
|
retry = 1;
|
|
break;
|
|
|
|
case IOERR_ILLEGAL_COMMAND:
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
|
|
"0124 Retry illegal cmd x%x "
|
|
"retry:x%x delay:x%x\n",
|
|
cmd, cmdiocb->retry, delay);
|
|
retry = 1;
|
|
/* All command's retry policy */
|
|
maxretry = 8;
|
|
if (cmdiocb->retry > 2)
|
|
delay = 1000;
|
|
break;
|
|
|
|
case IOERR_NO_RESOURCES:
|
|
logerr = 1; /* HBA out of resources */
|
|
retry = 1;
|
|
if (cmdiocb->retry > 100)
|
|
delay = 100;
|
|
maxretry = 250;
|
|
break;
|
|
|
|
case IOERR_ILLEGAL_FRAME:
|
|
delay = 100;
|
|
retry = 1;
|
|
break;
|
|
|
|
case IOERR_SEQUENCE_TIMEOUT:
|
|
case IOERR_INVALID_RPI:
|
|
if (cmd == ELS_CMD_PLOGI &&
|
|
did == NameServer_DID) {
|
|
/* Continue forever if plogi to */
|
|
/* the nameserver fails */
|
|
maxretry = 0;
|
|
delay = 100;
|
|
}
|
|
retry = 1;
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case IOSTAT_NPORT_RJT:
|
|
case IOSTAT_FABRIC_RJT:
|
|
if (irsp->un.ulpWord[4] & RJT_UNAVAIL_TEMP) {
|
|
retry = 1;
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case IOSTAT_NPORT_BSY:
|
|
case IOSTAT_FABRIC_BSY:
|
|
logerr = 1; /* Fabric / Remote NPort out of resources */
|
|
retry = 1;
|
|
break;
|
|
|
|
case IOSTAT_LS_RJT:
|
|
stat.un.lsRjtError = be32_to_cpu(irsp->un.ulpWord[4]);
|
|
/* Added for Vendor specifc support
|
|
* Just keep retrying for these Rsn / Exp codes
|
|
*/
|
|
switch (stat.un.b.lsRjtRsnCode) {
|
|
case LSRJT_UNABLE_TPC:
|
|
if (stat.un.b.lsRjtRsnCodeExp ==
|
|
LSEXP_CMD_IN_PROGRESS) {
|
|
if (cmd == ELS_CMD_PLOGI) {
|
|
delay = 1000;
|
|
maxretry = 48;
|
|
}
|
|
retry = 1;
|
|
break;
|
|
}
|
|
if (stat.un.b.lsRjtRsnCodeExp ==
|
|
LSEXP_CANT_GIVE_DATA) {
|
|
if (cmd == ELS_CMD_PLOGI) {
|
|
delay = 1000;
|
|
maxretry = 48;
|
|
}
|
|
retry = 1;
|
|
break;
|
|
}
|
|
if ((cmd == ELS_CMD_PLOGI) ||
|
|
(cmd == ELS_CMD_PRLI)) {
|
|
delay = 1000;
|
|
maxretry = lpfc_max_els_tries + 1;
|
|
retry = 1;
|
|
break;
|
|
}
|
|
if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
|
|
(cmd == ELS_CMD_FDISC) &&
|
|
(stat.un.b.lsRjtRsnCodeExp == LSEXP_OUT_OF_RESOURCE)){
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
|
|
"0125 FDISC Failed (x%x). "
|
|
"Fabric out of resources\n",
|
|
stat.un.lsRjtError);
|
|
lpfc_vport_set_state(vport,
|
|
FC_VPORT_NO_FABRIC_RSCS);
|
|
}
|
|
break;
|
|
|
|
case LSRJT_LOGICAL_BSY:
|
|
if ((cmd == ELS_CMD_PLOGI) ||
|
|
(cmd == ELS_CMD_PRLI)) {
|
|
delay = 1000;
|
|
maxretry = 48;
|
|
} else if (cmd == ELS_CMD_FDISC) {
|
|
/* FDISC retry policy */
|
|
maxretry = 48;
|
|
if (cmdiocb->retry >= 32)
|
|
delay = 1000;
|
|
}
|
|
retry = 1;
|
|
break;
|
|
|
|
case LSRJT_LOGICAL_ERR:
|
|
/* There are some cases where switches return this
|
|
* error when they are not ready and should be returning
|
|
* Logical Busy. We should delay every time.
|
|
*/
|
|
if (cmd == ELS_CMD_FDISC &&
|
|
stat.un.b.lsRjtRsnCodeExp == LSEXP_PORT_LOGIN_REQ) {
|
|
maxretry = 3;
|
|
delay = 1000;
|
|
retry = 1;
|
|
break;
|
|
}
|
|
case LSRJT_PROTOCOL_ERR:
|
|
if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
|
|
(cmd == ELS_CMD_FDISC) &&
|
|
((stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_PNAME) ||
|
|
(stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_NPORT_ID))
|
|
) {
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
|
|
"0122 FDISC Failed (x%x). "
|
|
"Fabric Detected Bad WWN\n",
|
|
stat.un.lsRjtError);
|
|
lpfc_vport_set_state(vport,
|
|
FC_VPORT_FABRIC_REJ_WWN);
|
|
}
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case IOSTAT_INTERMED_RSP:
|
|
case IOSTAT_BA_RJT:
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (did == FDMI_DID)
|
|
retry = 1;
|
|
|
|
if ((cmd == ELS_CMD_FLOGI) &&
|
|
(phba->fc_topology != LPFC_TOPOLOGY_LOOP) &&
|
|
!lpfc_error_lost_link(irsp)) {
|
|
/* FLOGI retry policy */
|
|
retry = 1;
|
|
/* retry FLOGI forever */
|
|
if (phba->link_flag != LS_LOOPBACK_MODE)
|
|
maxretry = 0;
|
|
else
|
|
maxretry = 2;
|
|
|
|
if (cmdiocb->retry >= 100)
|
|
delay = 5000;
|
|
else if (cmdiocb->retry >= 32)
|
|
delay = 1000;
|
|
} else if ((cmd == ELS_CMD_FDISC) && !lpfc_error_lost_link(irsp)) {
|
|
/* retry FDISCs every second up to devloss */
|
|
retry = 1;
|
|
maxretry = vport->cfg_devloss_tmo;
|
|
delay = 1000;
|
|
}
|
|
|
|
cmdiocb->retry++;
|
|
if (maxretry && (cmdiocb->retry >= maxretry)) {
|
|
phba->fc_stat.elsRetryExceeded++;
|
|
retry = 0;
|
|
}
|
|
|
|
if ((vport->load_flag & FC_UNLOADING) != 0)
|
|
retry = 0;
|
|
|
|
if (retry) {
|
|
if ((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_FDISC)) {
|
|
/* Stop retrying PLOGI and FDISC if in FCF discovery */
|
|
if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
|
|
"2849 Stop retry ELS command "
|
|
"x%x to remote NPORT x%x, "
|
|
"Data: x%x x%x\n", cmd, did,
|
|
cmdiocb->retry, delay);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
/* Retry ELS command <elsCmd> to remote NPORT <did> */
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
|
|
"0107 Retry ELS command x%x to remote "
|
|
"NPORT x%x Data: x%x x%x\n",
|
|
cmd, did, cmdiocb->retry, delay);
|
|
|
|
if (((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_ADISC)) &&
|
|
((irsp->ulpStatus != IOSTAT_LOCAL_REJECT) ||
|
|
((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) !=
|
|
IOERR_NO_RESOURCES))) {
|
|
/* Don't reset timer for no resources */
|
|
|
|
/* If discovery / RSCN timer is running, reset it */
|
|
if (timer_pending(&vport->fc_disctmo) ||
|
|
(vport->fc_flag & FC_RSCN_MODE))
|
|
lpfc_set_disctmo(vport);
|
|
}
|
|
|
|
phba->fc_stat.elsXmitRetry++;
|
|
if (ndlp && NLP_CHK_NODE_ACT(ndlp) && delay) {
|
|
phba->fc_stat.elsDelayRetry++;
|
|
ndlp->nlp_retry = cmdiocb->retry;
|
|
|
|
/* delay is specified in milliseconds */
|
|
mod_timer(&ndlp->nlp_delayfunc,
|
|
jiffies + msecs_to_jiffies(delay));
|
|
spin_lock_irq(shost->host_lock);
|
|
ndlp->nlp_flag |= NLP_DELAY_TMO;
|
|
spin_unlock_irq(shost->host_lock);
|
|
|
|
ndlp->nlp_prev_state = ndlp->nlp_state;
|
|
if (cmd == ELS_CMD_PRLI)
|
|
lpfc_nlp_set_state(vport, ndlp,
|
|
NLP_STE_PRLI_ISSUE);
|
|
else
|
|
lpfc_nlp_set_state(vport, ndlp,
|
|
NLP_STE_NPR_NODE);
|
|
ndlp->nlp_last_elscmd = cmd;
|
|
|
|
return 1;
|
|
}
|
|
switch (cmd) {
|
|
case ELS_CMD_FLOGI:
|
|
lpfc_issue_els_flogi(vport, ndlp, cmdiocb->retry);
|
|
return 1;
|
|
case ELS_CMD_FDISC:
|
|
lpfc_issue_els_fdisc(vport, ndlp, cmdiocb->retry);
|
|
return 1;
|
|
case ELS_CMD_PLOGI:
|
|
if (ndlp && NLP_CHK_NODE_ACT(ndlp)) {
|
|
ndlp->nlp_prev_state = ndlp->nlp_state;
|
|
lpfc_nlp_set_state(vport, ndlp,
|
|
NLP_STE_PLOGI_ISSUE);
|
|
}
|
|
lpfc_issue_els_plogi(vport, did, cmdiocb->retry);
|
|
return 1;
|
|
case ELS_CMD_ADISC:
|
|
ndlp->nlp_prev_state = ndlp->nlp_state;
|
|
lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
|
|
lpfc_issue_els_adisc(vport, ndlp, cmdiocb->retry);
|
|
return 1;
|
|
case ELS_CMD_PRLI:
|
|
ndlp->nlp_prev_state = ndlp->nlp_state;
|
|
lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE);
|
|
lpfc_issue_els_prli(vport, ndlp, cmdiocb->retry);
|
|
return 1;
|
|
case ELS_CMD_LOGO:
|
|
ndlp->nlp_prev_state = ndlp->nlp_state;
|
|
lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE);
|
|
lpfc_issue_els_logo(vport, ndlp, cmdiocb->retry);
|
|
return 1;
|
|
}
|
|
}
|
|
/* No retry ELS command <elsCmd> to remote NPORT <did> */
|
|
if (logerr) {
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
|
|
"0137 No retry ELS command x%x to remote "
|
|
"NPORT x%x: Out of Resources: Error:x%x/%x\n",
|
|
cmd, did, irsp->ulpStatus,
|
|
irsp->un.ulpWord[4]);
|
|
}
|
|
else {
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
|
|
"0108 No retry ELS command x%x to remote "
|
|
"NPORT x%x Retried:%d Error:x%x/%x\n",
|
|
cmd, did, cmdiocb->retry, irsp->ulpStatus,
|
|
irsp->un.ulpWord[4]);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_els_free_data - Free lpfc dma buffer and data structure with an iocb
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @buf_ptr1: pointer to the lpfc DMA buffer data structure.
|
|
*
|
|
* This routine releases the lpfc DMA (Direct Memory Access) buffer(s)
|
|
* associated with a command IOCB back to the lpfc DMA buffer pool. It first
|
|
* checks to see whether there is a lpfc DMA buffer associated with the
|
|
* response of the command IOCB. If so, it will be released before releasing
|
|
* the lpfc DMA buffer associated with the IOCB itself.
|
|
*
|
|
* Return code
|
|
* 0 - Successfully released lpfc DMA buffer (currently, always return 0)
|
|
**/
|
|
static int
|
|
lpfc_els_free_data(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr1)
|
|
{
|
|
struct lpfc_dmabuf *buf_ptr;
|
|
|
|
/* Free the response before processing the command. */
|
|
if (!list_empty(&buf_ptr1->list)) {
|
|
list_remove_head(&buf_ptr1->list, buf_ptr,
|
|
struct lpfc_dmabuf,
|
|
list);
|
|
lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
|
|
kfree(buf_ptr);
|
|
}
|
|
lpfc_mbuf_free(phba, buf_ptr1->virt, buf_ptr1->phys);
|
|
kfree(buf_ptr1);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_els_free_bpl - Free lpfc dma buffer and data structure with bpl
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @buf_ptr: pointer to the lpfc dma buffer data structure.
|
|
*
|
|
* This routine releases the lpfc Direct Memory Access (DMA) buffer
|
|
* associated with a Buffer Pointer List (BPL) back to the lpfc DMA buffer
|
|
* pool.
|
|
*
|
|
* Return code
|
|
* 0 - Successfully released lpfc DMA buffer (currently, always return 0)
|
|
**/
|
|
static int
|
|
lpfc_els_free_bpl(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr)
|
|
{
|
|
lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
|
|
kfree(buf_ptr);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_els_free_iocb - Free a command iocb and its associated resources
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @elsiocb: pointer to lpfc els command iocb data structure.
|
|
*
|
|
* This routine frees a command IOCB and its associated resources. The
|
|
* command IOCB data structure contains the reference to various associated
|
|
* resources, these fields must be set to NULL if the associated reference
|
|
* not present:
|
|
* context1 - reference to ndlp
|
|
* context2 - reference to cmd
|
|
* context2->next - reference to rsp
|
|
* context3 - reference to bpl
|
|
*
|
|
* It first properly decrements the reference count held on ndlp for the
|
|
* IOCB completion callback function. If LPFC_DELAY_MEM_FREE flag is not
|
|
* set, it invokes the lpfc_els_free_data() routine to release the Direct
|
|
* Memory Access (DMA) buffers associated with the IOCB. Otherwise, it
|
|
* adds the DMA buffer the @phba data structure for the delayed release.
|
|
* If reference to the Buffer Pointer List (BPL) is present, the
|
|
* lpfc_els_free_bpl() routine is invoked to release the DMA memory
|
|
* associated with BPL. Finally, the lpfc_sli_release_iocbq() routine is
|
|
* invoked to release the IOCB data structure back to @phba IOCBQ list.
|
|
*
|
|
* Return code
|
|
* 0 - Success (currently, always return 0)
|
|
**/
|
|
int
|
|
lpfc_els_free_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *elsiocb)
|
|
{
|
|
struct lpfc_dmabuf *buf_ptr, *buf_ptr1;
|
|
struct lpfc_nodelist *ndlp;
|
|
|
|
ndlp = (struct lpfc_nodelist *)elsiocb->context1;
|
|
if (ndlp) {
|
|
if (ndlp->nlp_flag & NLP_DEFER_RM) {
|
|
lpfc_nlp_put(ndlp);
|
|
|
|
/* If the ndlp is not being used by another discovery
|
|
* thread, free it.
|
|
*/
|
|
if (!lpfc_nlp_not_used(ndlp)) {
|
|
/* If ndlp is being used by another discovery
|
|
* thread, just clear NLP_DEFER_RM
|
|
*/
|
|
ndlp->nlp_flag &= ~NLP_DEFER_RM;
|
|
}
|
|
}
|
|
else
|
|
lpfc_nlp_put(ndlp);
|
|
elsiocb->context1 = NULL;
|
|
}
|
|
/* context2 = cmd, context2->next = rsp, context3 = bpl */
|
|
if (elsiocb->context2) {
|
|
if (elsiocb->iocb_flag & LPFC_DELAY_MEM_FREE) {
|
|
/* Firmware could still be in progress of DMAing
|
|
* payload, so don't free data buffer till after
|
|
* a hbeat.
|
|
*/
|
|
elsiocb->iocb_flag &= ~LPFC_DELAY_MEM_FREE;
|
|
buf_ptr = elsiocb->context2;
|
|
elsiocb->context2 = NULL;
|
|
if (buf_ptr) {
|
|
buf_ptr1 = NULL;
|
|
spin_lock_irq(&phba->hbalock);
|
|
if (!list_empty(&buf_ptr->list)) {
|
|
list_remove_head(&buf_ptr->list,
|
|
buf_ptr1, struct lpfc_dmabuf,
|
|
list);
|
|
INIT_LIST_HEAD(&buf_ptr1->list);
|
|
list_add_tail(&buf_ptr1->list,
|
|
&phba->elsbuf);
|
|
phba->elsbuf_cnt++;
|
|
}
|
|
INIT_LIST_HEAD(&buf_ptr->list);
|
|
list_add_tail(&buf_ptr->list, &phba->elsbuf);
|
|
phba->elsbuf_cnt++;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
}
|
|
} else {
|
|
buf_ptr1 = (struct lpfc_dmabuf *) elsiocb->context2;
|
|
lpfc_els_free_data(phba, buf_ptr1);
|
|
}
|
|
}
|
|
|
|
if (elsiocb->context3) {
|
|
buf_ptr = (struct lpfc_dmabuf *) elsiocb->context3;
|
|
lpfc_els_free_bpl(phba, buf_ptr);
|
|
}
|
|
lpfc_sli_release_iocbq(phba, elsiocb);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_cmpl_els_logo_acc - Completion callback function to logo acc response
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @cmdiocb: pointer to lpfc command iocb data structure.
|
|
* @rspiocb: pointer to lpfc response iocb data structure.
|
|
*
|
|
* This routine is the completion callback function to the Logout (LOGO)
|
|
* Accept (ACC) Response ELS command. This routine is invoked to indicate
|
|
* the completion of the LOGO process. It invokes the lpfc_nlp_not_used() to
|
|
* release the ndlp if it has the last reference remaining (reference count
|
|
* is 1). If succeeded (meaning ndlp released), it sets the IOCB context1
|
|
* field to NULL to inform the following lpfc_els_free_iocb() routine no
|
|
* ndlp reference count needs to be decremented. Otherwise, the ndlp
|
|
* reference use-count shall be decremented by the lpfc_els_free_iocb()
|
|
* routine. Finally, the lpfc_els_free_iocb() is invoked to release the
|
|
* IOCB data structure.
|
|
**/
|
|
static void
|
|
lpfc_cmpl_els_logo_acc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
|
|
struct lpfc_iocbq *rspiocb)
|
|
{
|
|
struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
|
|
struct lpfc_vport *vport = cmdiocb->vport;
|
|
IOCB_t *irsp;
|
|
|
|
irsp = &rspiocb->iocb;
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
|
|
"ACC LOGO cmpl: status:x%x/x%x did:x%x",
|
|
irsp->ulpStatus, irsp->un.ulpWord[4], ndlp->nlp_DID);
|
|
/* ACC to LOGO completes to NPort <nlp_DID> */
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
|
|
"0109 ACC to LOGO completes to NPort x%x "
|
|
"Data: x%x x%x x%x\n",
|
|
ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
|
|
ndlp->nlp_rpi);
|
|
|
|
if (ndlp->nlp_state == NLP_STE_NPR_NODE) {
|
|
/* NPort Recovery mode or node is just allocated */
|
|
if (!lpfc_nlp_not_used(ndlp)) {
|
|
/* If the ndlp is being used by another discovery
|
|
* thread, just unregister the RPI.
|
|
*/
|
|
lpfc_unreg_rpi(vport, ndlp);
|
|
} else {
|
|
/* Indicate the node has already released, should
|
|
* not reference to it from within lpfc_els_free_iocb.
|
|
*/
|
|
cmdiocb->context1 = NULL;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* The driver received a LOGO from the rport and has ACK'd it.
|
|
* At this point, the driver is done so release the IOCB
|
|
*/
|
|
lpfc_els_free_iocb(phba, cmdiocb);
|
|
}
|
|
|
|
/**
|
|
* lpfc_mbx_cmpl_dflt_rpi - Completion callbk func for unreg dflt rpi mbox cmd
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @pmb: pointer to the driver internal queue element for mailbox command.
|
|
*
|
|
* This routine is the completion callback function for unregister default
|
|
* RPI (Remote Port Index) mailbox command to the @phba. It simply releases
|
|
* the associated lpfc Direct Memory Access (DMA) buffer back to the pool and
|
|
* decrements the ndlp reference count held for this completion callback
|
|
* function. After that, it invokes the lpfc_nlp_not_used() to check
|
|
* whether there is only one reference left on the ndlp. If so, it will
|
|
* perform one more decrement and trigger the release of the ndlp.
|
|
**/
|
|
void
|
|
lpfc_mbx_cmpl_dflt_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
|
|
{
|
|
struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
|
|
struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
|
|
|
|
pmb->context1 = NULL;
|
|
pmb->context2 = NULL;
|
|
|
|
lpfc_mbuf_free(phba, mp->virt, mp->phys);
|
|
kfree(mp);
|
|
mempool_free(pmb, phba->mbox_mem_pool);
|
|
if (ndlp) {
|
|
lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
|
|
"0006 rpi%x DID:%x flg:%x %d map:%x %p\n",
|
|
ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag,
|
|
atomic_read(&ndlp->kref.refcount),
|
|
ndlp->nlp_usg_map, ndlp);
|
|
if (NLP_CHK_NODE_ACT(ndlp)) {
|
|
lpfc_nlp_put(ndlp);
|
|
/* This is the end of the default RPI cleanup logic for
|
|
* this ndlp. If no other discovery threads are using
|
|
* this ndlp, free all resources associated with it.
|
|
*/
|
|
lpfc_nlp_not_used(ndlp);
|
|
} else {
|
|
lpfc_drop_node(ndlp->vport, ndlp);
|
|
}
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* lpfc_cmpl_els_rsp - Completion callback function for els response iocb cmd
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @cmdiocb: pointer to lpfc command iocb data structure.
|
|
* @rspiocb: pointer to lpfc response iocb data structure.
|
|
*
|
|
* This routine is the completion callback function for ELS Response IOCB
|
|
* command. In normal case, this callback function just properly sets the
|
|
* nlp_flag bitmap in the ndlp data structure, if the mbox command reference
|
|
* field in the command IOCB is not NULL, the referred mailbox command will
|
|
* be send out, and then invokes the lpfc_els_free_iocb() routine to release
|
|
* the IOCB. Under error conditions, such as when a LS_RJT is returned or a
|
|
* link down event occurred during the discovery, the lpfc_nlp_not_used()
|
|
* routine shall be invoked trying to release the ndlp if no other threads
|
|
* are currently referring it.
|
|
**/
|
|
static void
|
|
lpfc_cmpl_els_rsp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
|
|
struct lpfc_iocbq *rspiocb)
|
|
{
|
|
struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
|
|
struct lpfc_vport *vport = ndlp ? ndlp->vport : NULL;
|
|
struct Scsi_Host *shost = vport ? lpfc_shost_from_vport(vport) : NULL;
|
|
IOCB_t *irsp;
|
|
uint8_t *pcmd;
|
|
LPFC_MBOXQ_t *mbox = NULL;
|
|
struct lpfc_dmabuf *mp = NULL;
|
|
uint32_t ls_rjt = 0;
|
|
|
|
irsp = &rspiocb->iocb;
|
|
|
|
if (cmdiocb->context_un.mbox)
|
|
mbox = cmdiocb->context_un.mbox;
|
|
|
|
/* First determine if this is a LS_RJT cmpl. Note, this callback
|
|
* function can have cmdiocb->contest1 (ndlp) field set to NULL.
|
|
*/
|
|
pcmd = (uint8_t *) (((struct lpfc_dmabuf *) cmdiocb->context2)->virt);
|
|
if (ndlp && NLP_CHK_NODE_ACT(ndlp) &&
|
|
(*((uint32_t *) (pcmd)) == ELS_CMD_LS_RJT)) {
|
|
/* A LS_RJT associated with Default RPI cleanup has its own
|
|
* separate code path.
|
|
*/
|
|
if (!(ndlp->nlp_flag & NLP_RM_DFLT_RPI))
|
|
ls_rjt = 1;
|
|
}
|
|
|
|
/* Check to see if link went down during discovery */
|
|
if (!ndlp || !NLP_CHK_NODE_ACT(ndlp) || lpfc_els_chk_latt(vport)) {
|
|
if (mbox) {
|
|
mp = (struct lpfc_dmabuf *) mbox->context1;
|
|
if (mp) {
|
|
lpfc_mbuf_free(phba, mp->virt, mp->phys);
|
|
kfree(mp);
|
|
}
|
|
mempool_free(mbox, phba->mbox_mem_pool);
|
|
}
|
|
if (ndlp && NLP_CHK_NODE_ACT(ndlp) &&
|
|
(ndlp->nlp_flag & NLP_RM_DFLT_RPI))
|
|
if (lpfc_nlp_not_used(ndlp)) {
|
|
ndlp = NULL;
|
|
/* Indicate the node has already released,
|
|
* should not reference to it from within
|
|
* the routine lpfc_els_free_iocb.
|
|
*/
|
|
cmdiocb->context1 = NULL;
|
|
}
|
|
goto out;
|
|
}
|
|
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
|
|
"ELS rsp cmpl: status:x%x/x%x did:x%x",
|
|
irsp->ulpStatus, irsp->un.ulpWord[4],
|
|
cmdiocb->iocb.un.elsreq64.remoteID);
|
|
/* ELS response tag <ulpIoTag> completes */
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
|
|
"0110 ELS response tag x%x completes "
|
|
"Data: x%x x%x x%x x%x x%x x%x x%x\n",
|
|
cmdiocb->iocb.ulpIoTag, rspiocb->iocb.ulpStatus,
|
|
rspiocb->iocb.un.ulpWord[4], rspiocb->iocb.ulpTimeout,
|
|
ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
|
|
ndlp->nlp_rpi);
|
|
if (mbox) {
|
|
if ((rspiocb->iocb.ulpStatus == 0)
|
|
&& (ndlp->nlp_flag & NLP_ACC_REGLOGIN)) {
|
|
lpfc_unreg_rpi(vport, ndlp);
|
|
/* Increment reference count to ndlp to hold the
|
|
* reference to ndlp for the callback function.
|
|
*/
|
|
mbox->context2 = lpfc_nlp_get(ndlp);
|
|
mbox->vport = vport;
|
|
if (ndlp->nlp_flag & NLP_RM_DFLT_RPI) {
|
|
mbox->mbox_flag |= LPFC_MBX_IMED_UNREG;
|
|
mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
|
|
}
|
|
else {
|
|
mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login;
|
|
ndlp->nlp_prev_state = ndlp->nlp_state;
|
|
lpfc_nlp_set_state(vport, ndlp,
|
|
NLP_STE_REG_LOGIN_ISSUE);
|
|
}
|
|
|
|
ndlp->nlp_flag |= NLP_REG_LOGIN_SEND;
|
|
if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
|
|
!= MBX_NOT_FINISHED)
|
|
goto out;
|
|
|
|
/* Decrement the ndlp reference count we
|
|
* set for this failed mailbox command.
|
|
*/
|
|
lpfc_nlp_put(ndlp);
|
|
ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;
|
|
|
|
/* ELS rsp: Cannot issue reg_login for <NPortid> */
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
|
|
"0138 ELS rsp: Cannot issue reg_login for x%x "
|
|
"Data: x%x x%x x%x\n",
|
|
ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
|
|
ndlp->nlp_rpi);
|
|
|
|
if (lpfc_nlp_not_used(ndlp)) {
|
|
ndlp = NULL;
|
|
/* Indicate node has already been released,
|
|
* should not reference to it from within
|
|
* the routine lpfc_els_free_iocb.
|
|
*/
|
|
cmdiocb->context1 = NULL;
|
|
}
|
|
} else {
|
|
/* Do not drop node for lpfc_els_abort'ed ELS cmds */
|
|
if (!lpfc_error_lost_link(irsp) &&
|
|
ndlp->nlp_flag & NLP_ACC_REGLOGIN) {
|
|
if (lpfc_nlp_not_used(ndlp)) {
|
|
ndlp = NULL;
|
|
/* Indicate node has already been
|
|
* released, should not reference
|
|
* to it from within the routine
|
|
* lpfc_els_free_iocb.
|
|
*/
|
|
cmdiocb->context1 = NULL;
|
|
}
|
|
}
|
|
}
|
|
mp = (struct lpfc_dmabuf *) mbox->context1;
|
|
if (mp) {
|
|
lpfc_mbuf_free(phba, mp->virt, mp->phys);
|
|
kfree(mp);
|
|
}
|
|
mempool_free(mbox, phba->mbox_mem_pool);
|
|
}
|
|
out:
|
|
if (ndlp && NLP_CHK_NODE_ACT(ndlp)) {
|
|
spin_lock_irq(shost->host_lock);
|
|
ndlp->nlp_flag &= ~(NLP_ACC_REGLOGIN | NLP_RM_DFLT_RPI);
|
|
spin_unlock_irq(shost->host_lock);
|
|
|
|
/* If the node is not being used by another discovery thread,
|
|
* and we are sending a reject, we are done with it.
|
|
* Release driver reference count here and free associated
|
|
* resources.
|
|
*/
|
|
if (ls_rjt)
|
|
if (lpfc_nlp_not_used(ndlp))
|
|
/* Indicate node has already been released,
|
|
* should not reference to it from within
|
|
* the routine lpfc_els_free_iocb.
|
|
*/
|
|
cmdiocb->context1 = NULL;
|
|
|
|
}
|
|
|
|
lpfc_els_free_iocb(phba, cmdiocb);
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* lpfc_els_rsp_acc - Prepare and issue an acc response iocb command
|
|
* @vport: pointer to a host virtual N_Port data structure.
|
|
* @flag: the els command code to be accepted.
|
|
* @oldiocb: pointer to the original lpfc command iocb data structure.
|
|
* @ndlp: pointer to a node-list data structure.
|
|
* @mbox: pointer to the driver internal queue element for mailbox command.
|
|
*
|
|
* This routine prepares and issues an Accept (ACC) response IOCB
|
|
* command. It uses the @flag to properly set up the IOCB field for the
|
|
* specific ACC response command to be issued and invokes the
|
|
* lpfc_sli_issue_iocb() routine to send out ACC response IOCB. If a
|
|
* @mbox pointer is passed in, it will be put into the context_un.mbox
|
|
* field of the IOCB for the completion callback function to issue the
|
|
* mailbox command to the HBA later when callback is invoked.
|
|
*
|
|
* Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
|
|
* will be incremented by 1 for holding the ndlp and the reference to ndlp
|
|
* will be stored into the context1 field of the IOCB for the completion
|
|
* callback function to the corresponding response ELS IOCB command.
|
|
*
|
|
* Return code
|
|
* 0 - Successfully issued acc response
|
|
* 1 - Failed to issue acc response
|
|
**/
|
|
int
|
|
lpfc_els_rsp_acc(struct lpfc_vport *vport, uint32_t flag,
|
|
struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp,
|
|
LPFC_MBOXQ_t *mbox)
|
|
{
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
struct lpfc_hba *phba = vport->phba;
|
|
IOCB_t *icmd;
|
|
IOCB_t *oldcmd;
|
|
struct lpfc_iocbq *elsiocb;
|
|
uint8_t *pcmd;
|
|
struct serv_parm *sp;
|
|
uint16_t cmdsize;
|
|
int rc;
|
|
ELS_PKT *els_pkt_ptr;
|
|
|
|
oldcmd = &oldiocb->iocb;
|
|
|
|
switch (flag) {
|
|
case ELS_CMD_ACC:
|
|
cmdsize = sizeof(uint32_t);
|
|
elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry,
|
|
ndlp, ndlp->nlp_DID, ELS_CMD_ACC);
|
|
if (!elsiocb) {
|
|
spin_lock_irq(shost->host_lock);
|
|
ndlp->nlp_flag &= ~NLP_LOGO_ACC;
|
|
spin_unlock_irq(shost->host_lock);
|
|
return 1;
|
|
}
|
|
|
|
icmd = &elsiocb->iocb;
|
|
icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
|
|
icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
|
|
pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
|
|
*((uint32_t *) (pcmd)) = ELS_CMD_ACC;
|
|
pcmd += sizeof(uint32_t);
|
|
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
|
|
"Issue ACC: did:x%x flg:x%x",
|
|
ndlp->nlp_DID, ndlp->nlp_flag, 0);
|
|
break;
|
|
case ELS_CMD_FLOGI:
|
|
case ELS_CMD_PLOGI:
|
|
cmdsize = (sizeof(struct serv_parm) + sizeof(uint32_t));
|
|
elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry,
|
|
ndlp, ndlp->nlp_DID, ELS_CMD_ACC);
|
|
if (!elsiocb)
|
|
return 1;
|
|
|
|
icmd = &elsiocb->iocb;
|
|
icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
|
|
icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
|
|
pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
|
|
|
|
if (mbox)
|
|
elsiocb->context_un.mbox = mbox;
|
|
|
|
*((uint32_t *) (pcmd)) = ELS_CMD_ACC;
|
|
pcmd += sizeof(uint32_t);
|
|
sp = (struct serv_parm *)pcmd;
|
|
|
|
if (flag == ELS_CMD_FLOGI) {
|
|
/* Copy the received service parameters back */
|
|
memcpy(sp, &phba->fc_fabparam,
|
|
sizeof(struct serv_parm));
|
|
|
|
/* Clear the F_Port bit */
|
|
sp->cmn.fPort = 0;
|
|
|
|
/* Mark all class service parameters as invalid */
|
|
sp->cls1.classValid = 0;
|
|
sp->cls2.classValid = 0;
|
|
sp->cls3.classValid = 0;
|
|
sp->cls4.classValid = 0;
|
|
|
|
/* Copy our worldwide names */
|
|
memcpy(&sp->portName, &vport->fc_sparam.portName,
|
|
sizeof(struct lpfc_name));
|
|
memcpy(&sp->nodeName, &vport->fc_sparam.nodeName,
|
|
sizeof(struct lpfc_name));
|
|
} else {
|
|
memcpy(pcmd, &vport->fc_sparam,
|
|
sizeof(struct serv_parm));
|
|
}
|
|
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
|
|
"Issue ACC FLOGI/PLOGI: did:x%x flg:x%x",
|
|
ndlp->nlp_DID, ndlp->nlp_flag, 0);
|
|
break;
|
|
case ELS_CMD_PRLO:
|
|
cmdsize = sizeof(uint32_t) + sizeof(PRLO);
|
|
elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry,
|
|
ndlp, ndlp->nlp_DID, ELS_CMD_PRLO);
|
|
if (!elsiocb)
|
|
return 1;
|
|
|
|
icmd = &elsiocb->iocb;
|
|
icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
|
|
icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
|
|
pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
|
|
|
|
memcpy(pcmd, ((struct lpfc_dmabuf *) oldiocb->context2)->virt,
|
|
sizeof(uint32_t) + sizeof(PRLO));
|
|
*((uint32_t *) (pcmd)) = ELS_CMD_PRLO_ACC;
|
|
els_pkt_ptr = (ELS_PKT *) pcmd;
|
|
els_pkt_ptr->un.prlo.acceptRspCode = PRLO_REQ_EXECUTED;
|
|
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
|
|
"Issue ACC PRLO: did:x%x flg:x%x",
|
|
ndlp->nlp_DID, ndlp->nlp_flag, 0);
|
|
break;
|
|
default:
|
|
return 1;
|
|
}
|
|
/* Xmit ELS ACC response tag <ulpIoTag> */
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
|
|
"0128 Xmit ELS ACC response tag x%x, XRI: x%x, "
|
|
"DID: x%x, nlp_flag: x%x nlp_state: x%x RPI: x%x "
|
|
"fc_flag x%x\n",
|
|
elsiocb->iotag, elsiocb->iocb.ulpContext,
|
|
ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
|
|
ndlp->nlp_rpi, vport->fc_flag);
|
|
if (ndlp->nlp_flag & NLP_LOGO_ACC) {
|
|
spin_lock_irq(shost->host_lock);
|
|
if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED ||
|
|
ndlp->nlp_flag & NLP_REG_LOGIN_SEND))
|
|
ndlp->nlp_flag &= ~NLP_LOGO_ACC;
|
|
spin_unlock_irq(shost->host_lock);
|
|
elsiocb->iocb_cmpl = lpfc_cmpl_els_logo_acc;
|
|
} else {
|
|
elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
|
|
}
|
|
|
|
phba->fc_stat.elsXmitACC++;
|
|
rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
|
|
if (rc == IOCB_ERROR) {
|
|
lpfc_els_free_iocb(phba, elsiocb);
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_els_rsp_reject - Propare and issue a rjt response iocb command
|
|
* @vport: pointer to a virtual N_Port data structure.
|
|
* @rejectError:
|
|
* @oldiocb: pointer to the original lpfc command iocb data structure.
|
|
* @ndlp: pointer to a node-list data structure.
|
|
* @mbox: pointer to the driver internal queue element for mailbox command.
|
|
*
|
|
* This routine prepares and issue an Reject (RJT) response IOCB
|
|
* command. If a @mbox pointer is passed in, it will be put into the
|
|
* context_un.mbox field of the IOCB for the completion callback function
|
|
* to issue to the HBA later.
|
|
*
|
|
* Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
|
|
* will be incremented by 1 for holding the ndlp and the reference to ndlp
|
|
* will be stored into the context1 field of the IOCB for the completion
|
|
* callback function to the reject response ELS IOCB command.
|
|
*
|
|
* Return code
|
|
* 0 - Successfully issued reject response
|
|
* 1 - Failed to issue reject response
|
|
**/
|
|
int
|
|
lpfc_els_rsp_reject(struct lpfc_vport *vport, uint32_t rejectError,
|
|
struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp,
|
|
LPFC_MBOXQ_t *mbox)
|
|
{
|
|
struct lpfc_hba *phba = vport->phba;
|
|
IOCB_t *icmd;
|
|
IOCB_t *oldcmd;
|
|
struct lpfc_iocbq *elsiocb;
|
|
uint8_t *pcmd;
|
|
uint16_t cmdsize;
|
|
int rc;
|
|
|
|
cmdsize = 2 * sizeof(uint32_t);
|
|
elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
|
|
ndlp->nlp_DID, ELS_CMD_LS_RJT);
|
|
if (!elsiocb)
|
|
return 1;
|
|
|
|
icmd = &elsiocb->iocb;
|
|
oldcmd = &oldiocb->iocb;
|
|
icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
|
|
icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
|
|
pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
|
|
|
|
*((uint32_t *) (pcmd)) = ELS_CMD_LS_RJT;
|
|
pcmd += sizeof(uint32_t);
|
|
*((uint32_t *) (pcmd)) = rejectError;
|
|
|
|
if (mbox)
|
|
elsiocb->context_un.mbox = mbox;
|
|
|
|
/* Xmit ELS RJT <err> response tag <ulpIoTag> */
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
|
|
"0129 Xmit ELS RJT x%x response tag x%x "
|
|
"xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, "
|
|
"rpi x%x\n",
|
|
rejectError, elsiocb->iotag,
|
|
elsiocb->iocb.ulpContext, ndlp->nlp_DID,
|
|
ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi);
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
|
|
"Issue LS_RJT: did:x%x flg:x%x err:x%x",
|
|
ndlp->nlp_DID, ndlp->nlp_flag, rejectError);
|
|
|
|
phba->fc_stat.elsXmitLSRJT++;
|
|
elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
|
|
rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
|
|
|
|
if (rc == IOCB_ERROR) {
|
|
lpfc_els_free_iocb(phba, elsiocb);
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_els_rsp_adisc_acc - Prepare and issue acc response to adisc iocb cmd
|
|
* @vport: pointer to a virtual N_Port data structure.
|
|
* @oldiocb: pointer to the original lpfc command iocb data structure.
|
|
* @ndlp: pointer to a node-list data structure.
|
|
*
|
|
* This routine prepares and issues an Accept (ACC) response to Address
|
|
* Discover (ADISC) ELS command. It simply prepares the payload of the IOCB
|
|
* and invokes the lpfc_sli_issue_iocb() routine to send out the command.
|
|
*
|
|
* Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
|
|
* will be incremented by 1 for holding the ndlp and the reference to ndlp
|
|
* will be stored into the context1 field of the IOCB for the completion
|
|
* callback function to the ADISC Accept response ELS IOCB command.
|
|
*
|
|
* Return code
|
|
* 0 - Successfully issued acc adisc response
|
|
* 1 - Failed to issue adisc acc response
|
|
**/
|
|
int
|
|
lpfc_els_rsp_adisc_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb,
|
|
struct lpfc_nodelist *ndlp)
|
|
{
|
|
struct lpfc_hba *phba = vport->phba;
|
|
ADISC *ap;
|
|
IOCB_t *icmd, *oldcmd;
|
|
struct lpfc_iocbq *elsiocb;
|
|
uint8_t *pcmd;
|
|
uint16_t cmdsize;
|
|
int rc;
|
|
|
|
cmdsize = sizeof(uint32_t) + sizeof(ADISC);
|
|
elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
|
|
ndlp->nlp_DID, ELS_CMD_ACC);
|
|
if (!elsiocb)
|
|
return 1;
|
|
|
|
icmd = &elsiocb->iocb;
|
|
oldcmd = &oldiocb->iocb;
|
|
icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
|
|
icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
|
|
|
|
/* Xmit ADISC ACC response tag <ulpIoTag> */
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
|
|
"0130 Xmit ADISC ACC response iotag x%x xri: "
|
|
"x%x, did x%x, nlp_flag x%x, nlp_state x%x rpi x%x\n",
|
|
elsiocb->iotag, elsiocb->iocb.ulpContext,
|
|
ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
|
|
ndlp->nlp_rpi);
|
|
pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
|
|
|
|
*((uint32_t *) (pcmd)) = ELS_CMD_ACC;
|
|
pcmd += sizeof(uint32_t);
|
|
|
|
ap = (ADISC *) (pcmd);
|
|
ap->hardAL_PA = phba->fc_pref_ALPA;
|
|
memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name));
|
|
memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name));
|
|
ap->DID = be32_to_cpu(vport->fc_myDID);
|
|
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
|
|
"Issue ACC ADISC: did:x%x flg:x%x",
|
|
ndlp->nlp_DID, ndlp->nlp_flag, 0);
|
|
|
|
phba->fc_stat.elsXmitACC++;
|
|
elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
|
|
rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
|
|
if (rc == IOCB_ERROR) {
|
|
lpfc_els_free_iocb(phba, elsiocb);
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_els_rsp_prli_acc - Prepare and issue acc response to prli iocb cmd
|
|
* @vport: pointer to a virtual N_Port data structure.
|
|
* @oldiocb: pointer to the original lpfc command iocb data structure.
|
|
* @ndlp: pointer to a node-list data structure.
|
|
*
|
|
* This routine prepares and issues an Accept (ACC) response to Process
|
|
* Login (PRLI) ELS command. It simply prepares the payload of the IOCB
|
|
* and invokes the lpfc_sli_issue_iocb() routine to send out the command.
|
|
*
|
|
* Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
|
|
* will be incremented by 1 for holding the ndlp and the reference to ndlp
|
|
* will be stored into the context1 field of the IOCB for the completion
|
|
* callback function to the PRLI Accept response ELS IOCB command.
|
|
*
|
|
* Return code
|
|
* 0 - Successfully issued acc prli response
|
|
* 1 - Failed to issue acc prli response
|
|
**/
|
|
int
|
|
lpfc_els_rsp_prli_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb,
|
|
struct lpfc_nodelist *ndlp)
|
|
{
|
|
struct lpfc_hba *phba = vport->phba;
|
|
PRLI *npr;
|
|
lpfc_vpd_t *vpd;
|
|
IOCB_t *icmd;
|
|
IOCB_t *oldcmd;
|
|
struct lpfc_iocbq *elsiocb;
|
|
uint8_t *pcmd;
|
|
uint16_t cmdsize;
|
|
int rc;
|
|
|
|
cmdsize = sizeof(uint32_t) + sizeof(PRLI);
|
|
elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
|
|
ndlp->nlp_DID, (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK)));
|
|
if (!elsiocb)
|
|
return 1;
|
|
|
|
icmd = &elsiocb->iocb;
|
|
oldcmd = &oldiocb->iocb;
|
|
icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
|
|
icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
|
|
|
|
/* Xmit PRLI ACC response tag <ulpIoTag> */
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
|
|
"0131 Xmit PRLI ACC response tag x%x xri x%x, "
|
|
"did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n",
|
|
elsiocb->iotag, elsiocb->iocb.ulpContext,
|
|
ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
|
|
ndlp->nlp_rpi);
|
|
pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
|
|
|
|
*((uint32_t *) (pcmd)) = (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK));
|
|
pcmd += sizeof(uint32_t);
|
|
|
|
/* For PRLI, remainder of payload is PRLI parameter page */
|
|
memset(pcmd, 0, sizeof(PRLI));
|
|
|
|
npr = (PRLI *) pcmd;
|
|
vpd = &phba->vpd;
|
|
/*
|
|
* If the remote port is a target and our firmware version is 3.20 or
|
|
* later, set the following bits for FC-TAPE support.
|
|
*/
|
|
if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
|
|
(vpd->rev.feaLevelHigh >= 0x02)) {
|
|
npr->ConfmComplAllowed = 1;
|
|
npr->Retry = 1;
|
|
npr->TaskRetryIdReq = 1;
|
|
}
|
|
|
|
npr->acceptRspCode = PRLI_REQ_EXECUTED;
|
|
npr->estabImagePair = 1;
|
|
npr->readXferRdyDis = 1;
|
|
npr->ConfmComplAllowed = 1;
|
|
|
|
npr->prliType = PRLI_FCP_TYPE;
|
|
npr->initiatorFunc = 1;
|
|
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
|
|
"Issue ACC PRLI: did:x%x flg:x%x",
|
|
ndlp->nlp_DID, ndlp->nlp_flag, 0);
|
|
|
|
phba->fc_stat.elsXmitACC++;
|
|
elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
|
|
|
|
rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
|
|
if (rc == IOCB_ERROR) {
|
|
lpfc_els_free_iocb(phba, elsiocb);
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_els_rsp_rnid_acc - Issue rnid acc response iocb command
|
|
* @vport: pointer to a virtual N_Port data structure.
|
|
* @format: rnid command format.
|
|
* @oldiocb: pointer to the original lpfc command iocb data structure.
|
|
* @ndlp: pointer to a node-list data structure.
|
|
*
|
|
* This routine issues a Request Node Identification Data (RNID) Accept
|
|
* (ACC) response. It constructs the RNID ACC response command according to
|
|
* the proper @format and then calls the lpfc_sli_issue_iocb() routine to
|
|
* issue the response. Note that this command does not need to hold the ndlp
|
|
* reference count for the callback. So, the ndlp reference count taken by
|
|
* the lpfc_prep_els_iocb() routine is put back and the context1 field of
|
|
* IOCB is set to NULL to indicate to the lpfc_els_free_iocb() routine that
|
|
* there is no ndlp reference available.
|
|
*
|
|
* Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
|
|
* will be incremented by 1 for holding the ndlp and the reference to ndlp
|
|
* will be stored into the context1 field of the IOCB for the completion
|
|
* callback function. However, for the RNID Accept Response ELS command,
|
|
* this is undone later by this routine after the IOCB is allocated.
|
|
*
|
|
* Return code
|
|
* 0 - Successfully issued acc rnid response
|
|
* 1 - Failed to issue acc rnid response
|
|
**/
|
|
static int
|
|
lpfc_els_rsp_rnid_acc(struct lpfc_vport *vport, uint8_t format,
|
|
struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp)
|
|
{
|
|
struct lpfc_hba *phba = vport->phba;
|
|
RNID *rn;
|
|
IOCB_t *icmd, *oldcmd;
|
|
struct lpfc_iocbq *elsiocb;
|
|
uint8_t *pcmd;
|
|
uint16_t cmdsize;
|
|
int rc;
|
|
|
|
cmdsize = sizeof(uint32_t) + sizeof(uint32_t)
|
|
+ (2 * sizeof(struct lpfc_name));
|
|
if (format)
|
|
cmdsize += sizeof(RNID_TOP_DISC);
|
|
|
|
elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
|
|
ndlp->nlp_DID, ELS_CMD_ACC);
|
|
if (!elsiocb)
|
|
return 1;
|
|
|
|
icmd = &elsiocb->iocb;
|
|
oldcmd = &oldiocb->iocb;
|
|
icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
|
|
icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
|
|
|
|
/* Xmit RNID ACC response tag <ulpIoTag> */
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
|
|
"0132 Xmit RNID ACC response tag x%x xri x%x\n",
|
|
elsiocb->iotag, elsiocb->iocb.ulpContext);
|
|
pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
|
|
*((uint32_t *) (pcmd)) = ELS_CMD_ACC;
|
|
pcmd += sizeof(uint32_t);
|
|
|
|
memset(pcmd, 0, sizeof(RNID));
|
|
rn = (RNID *) (pcmd);
|
|
rn->Format = format;
|
|
rn->CommonLen = (2 * sizeof(struct lpfc_name));
|
|
memcpy(&rn->portName, &vport->fc_portname, sizeof(struct lpfc_name));
|
|
memcpy(&rn->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name));
|
|
switch (format) {
|
|
case 0:
|
|
rn->SpecificLen = 0;
|
|
break;
|
|
case RNID_TOPOLOGY_DISC:
|
|
rn->SpecificLen = sizeof(RNID_TOP_DISC);
|
|
memcpy(&rn->un.topologyDisc.portName,
|
|
&vport->fc_portname, sizeof(struct lpfc_name));
|
|
rn->un.topologyDisc.unitType = RNID_HBA;
|
|
rn->un.topologyDisc.physPort = 0;
|
|
rn->un.topologyDisc.attachedNodes = 0;
|
|
break;
|
|
default:
|
|
rn->CommonLen = 0;
|
|
rn->SpecificLen = 0;
|
|
break;
|
|
}
|
|
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
|
|
"Issue ACC RNID: did:x%x flg:x%x",
|
|
ndlp->nlp_DID, ndlp->nlp_flag, 0);
|
|
|
|
phba->fc_stat.elsXmitACC++;
|
|
elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
|
|
|
|
rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
|
|
if (rc == IOCB_ERROR) {
|
|
lpfc_els_free_iocb(phba, elsiocb);
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_els_clear_rrq - Clear the rq that this rrq describes.
|
|
* @vport: pointer to a virtual N_Port data structure.
|
|
* @iocb: pointer to the lpfc command iocb data structure.
|
|
* @ndlp: pointer to a node-list data structure.
|
|
*
|
|
* Return
|
|
**/
|
|
static void
|
|
lpfc_els_clear_rrq(struct lpfc_vport *vport,
|
|
struct lpfc_iocbq *iocb, struct lpfc_nodelist *ndlp)
|
|
{
|
|
struct lpfc_hba *phba = vport->phba;
|
|
uint8_t *pcmd;
|
|
struct RRQ *rrq;
|
|
uint16_t rxid;
|
|
uint16_t xri;
|
|
struct lpfc_node_rrq *prrq;
|
|
|
|
|
|
pcmd = (uint8_t *) (((struct lpfc_dmabuf *) iocb->context2)->virt);
|
|
pcmd += sizeof(uint32_t);
|
|
rrq = (struct RRQ *)pcmd;
|
|
rrq->rrq_exchg = be32_to_cpu(rrq->rrq_exchg);
|
|
rxid = bf_get(rrq_rxid, rrq);
|
|
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
|
|
"2883 Clear RRQ for SID:x%x OXID:x%x RXID:x%x"
|
|
" x%x x%x\n",
|
|
be32_to_cpu(bf_get(rrq_did, rrq)),
|
|
bf_get(rrq_oxid, rrq),
|
|
rxid,
|
|
iocb->iotag, iocb->iocb.ulpContext);
|
|
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
|
|
"Clear RRQ: did:x%x flg:x%x exchg:x%.08x",
|
|
ndlp->nlp_DID, ndlp->nlp_flag, rrq->rrq_exchg);
|
|
if (vport->fc_myDID == be32_to_cpu(bf_get(rrq_did, rrq)))
|
|
xri = bf_get(rrq_oxid, rrq);
|
|
else
|
|
xri = rxid;
|
|
prrq = lpfc_get_active_rrq(vport, xri, ndlp->nlp_DID);
|
|
if (prrq)
|
|
lpfc_clr_rrq_active(phba, xri, prrq);
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* lpfc_els_rsp_echo_acc - Issue echo acc response
|
|
* @vport: pointer to a virtual N_Port data structure.
|
|
* @data: pointer to echo data to return in the accept.
|
|
* @oldiocb: pointer to the original lpfc command iocb data structure.
|
|
* @ndlp: pointer to a node-list data structure.
|
|
*
|
|
* Return code
|
|
* 0 - Successfully issued acc echo response
|
|
* 1 - Failed to issue acc echo response
|
|
**/
|
|
static int
|
|
lpfc_els_rsp_echo_acc(struct lpfc_vport *vport, uint8_t *data,
|
|
struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp)
|
|
{
|
|
struct lpfc_hba *phba = vport->phba;
|
|
struct lpfc_iocbq *elsiocb;
|
|
uint8_t *pcmd;
|
|
uint16_t cmdsize;
|
|
int rc;
|
|
|
|
cmdsize = oldiocb->iocb.unsli3.rcvsli3.acc_len;
|
|
|
|
/* The accumulated length can exceed the BPL_SIZE. For
|
|
* now, use this as the limit
|
|
*/
|
|
if (cmdsize > LPFC_BPL_SIZE)
|
|
cmdsize = LPFC_BPL_SIZE;
|
|
elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
|
|
ndlp->nlp_DID, ELS_CMD_ACC);
|
|
if (!elsiocb)
|
|
return 1;
|
|
|
|
elsiocb->iocb.ulpContext = oldiocb->iocb.ulpContext; /* Xri / rx_id */
|
|
elsiocb->iocb.unsli3.rcvsli3.ox_id = oldiocb->iocb.unsli3.rcvsli3.ox_id;
|
|
|
|
/* Xmit ECHO ACC response tag <ulpIoTag> */
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
|
|
"2876 Xmit ECHO ACC response tag x%x xri x%x\n",
|
|
elsiocb->iotag, elsiocb->iocb.ulpContext);
|
|
pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
|
|
*((uint32_t *) (pcmd)) = ELS_CMD_ACC;
|
|
pcmd += sizeof(uint32_t);
|
|
memcpy(pcmd, data, cmdsize - sizeof(uint32_t));
|
|
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
|
|
"Issue ACC ECHO: did:x%x flg:x%x",
|
|
ndlp->nlp_DID, ndlp->nlp_flag, 0);
|
|
|
|
phba->fc_stat.elsXmitACC++;
|
|
elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
|
|
|
|
rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
|
|
if (rc == IOCB_ERROR) {
|
|
lpfc_els_free_iocb(phba, elsiocb);
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_els_disc_adisc - Issue remaining adisc iocbs to npr nodes of a vport
|
|
* @vport: pointer to a host virtual N_Port data structure.
|
|
*
|
|
* This routine issues Address Discover (ADISC) ELS commands to those
|
|
* N_Ports which are in node port recovery state and ADISC has not been issued
|
|
* for the @vport. Each time an ELS ADISC IOCB is issued by invoking the
|
|
* lpfc_issue_els_adisc() routine, the per @vport number of discover count
|
|
* (num_disc_nodes) shall be incremented. If the num_disc_nodes reaches a
|
|
* pre-configured threshold (cfg_discovery_threads), the @vport fc_flag will
|
|
* be marked with FC_NLP_MORE bit and the process of issuing remaining ADISC
|
|
* IOCBs quit for later pick up. On the other hand, after walking through
|
|
* all the ndlps with the @vport and there is none ADISC IOCB issued, the
|
|
* @vport fc_flag shall be cleared with FC_NLP_MORE bit indicating there is
|
|
* no more ADISC need to be sent.
|
|
*
|
|
* Return code
|
|
* The number of N_Ports with adisc issued.
|
|
**/
|
|
int
|
|
lpfc_els_disc_adisc(struct lpfc_vport *vport)
|
|
{
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
struct lpfc_nodelist *ndlp, *next_ndlp;
|
|
int sentadisc = 0;
|
|
|
|
/* go thru NPR nodes and issue any remaining ELS ADISCs */
|
|
list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
|
|
if (!NLP_CHK_NODE_ACT(ndlp))
|
|
continue;
|
|
if (ndlp->nlp_state == NLP_STE_NPR_NODE &&
|
|
(ndlp->nlp_flag & NLP_NPR_2B_DISC) != 0 &&
|
|
(ndlp->nlp_flag & NLP_NPR_ADISC) != 0) {
|
|
spin_lock_irq(shost->host_lock);
|
|
ndlp->nlp_flag &= ~NLP_NPR_ADISC;
|
|
spin_unlock_irq(shost->host_lock);
|
|
ndlp->nlp_prev_state = ndlp->nlp_state;
|
|
lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
|
|
lpfc_issue_els_adisc(vport, ndlp, 0);
|
|
sentadisc++;
|
|
vport->num_disc_nodes++;
|
|
if (vport->num_disc_nodes >=
|
|
vport->cfg_discovery_threads) {
|
|
spin_lock_irq(shost->host_lock);
|
|
vport->fc_flag |= FC_NLP_MORE;
|
|
spin_unlock_irq(shost->host_lock);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if (sentadisc == 0) {
|
|
spin_lock_irq(shost->host_lock);
|
|
vport->fc_flag &= ~FC_NLP_MORE;
|
|
spin_unlock_irq(shost->host_lock);
|
|
}
|
|
return sentadisc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_els_disc_plogi - Issue plogi for all npr nodes of a vport before adisc
|
|
* @vport: pointer to a host virtual N_Port data structure.
|
|
*
|
|
* This routine issues Port Login (PLOGI) ELS commands to all the N_Ports
|
|
* which are in node port recovery state, with a @vport. Each time an ELS
|
|
* ADISC PLOGI IOCB is issued by invoking the lpfc_issue_els_plogi() routine,
|
|
* the per @vport number of discover count (num_disc_nodes) shall be
|
|
* incremented. If the num_disc_nodes reaches a pre-configured threshold
|
|
* (cfg_discovery_threads), the @vport fc_flag will be marked with FC_NLP_MORE
|
|
* bit set and quit the process of issuing remaining ADISC PLOGIN IOCBs for
|
|
* later pick up. On the other hand, after walking through all the ndlps with
|
|
* the @vport and there is none ADISC PLOGI IOCB issued, the @vport fc_flag
|
|
* shall be cleared with the FC_NLP_MORE bit indicating there is no more ADISC
|
|
* PLOGI need to be sent.
|
|
*
|
|
* Return code
|
|
* The number of N_Ports with plogi issued.
|
|
**/
|
|
int
|
|
lpfc_els_disc_plogi(struct lpfc_vport *vport)
|
|
{
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
struct lpfc_nodelist *ndlp, *next_ndlp;
|
|
int sentplogi = 0;
|
|
|
|
/* go thru NPR nodes and issue any remaining ELS PLOGIs */
|
|
list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
|
|
if (!NLP_CHK_NODE_ACT(ndlp))
|
|
continue;
|
|
if (ndlp->nlp_state == NLP_STE_NPR_NODE &&
|
|
(ndlp->nlp_flag & NLP_NPR_2B_DISC) != 0 &&
|
|
(ndlp->nlp_flag & NLP_DELAY_TMO) == 0 &&
|
|
(ndlp->nlp_flag & NLP_NPR_ADISC) == 0) {
|
|
ndlp->nlp_prev_state = ndlp->nlp_state;
|
|
lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
|
|
lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
|
|
sentplogi++;
|
|
vport->num_disc_nodes++;
|
|
if (vport->num_disc_nodes >=
|
|
vport->cfg_discovery_threads) {
|
|
spin_lock_irq(shost->host_lock);
|
|
vport->fc_flag |= FC_NLP_MORE;
|
|
spin_unlock_irq(shost->host_lock);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if (sentplogi) {
|
|
lpfc_set_disctmo(vport);
|
|
}
|
|
else {
|
|
spin_lock_irq(shost->host_lock);
|
|
vport->fc_flag &= ~FC_NLP_MORE;
|
|
spin_unlock_irq(shost->host_lock);
|
|
}
|
|
return sentplogi;
|
|
}
|
|
|
|
void
|
|
lpfc_rdp_res_link_service(struct fc_rdp_link_service_desc *desc,
|
|
uint32_t word0)
|
|
{
|
|
|
|
desc->tag = cpu_to_be32(RDP_LINK_SERVICE_DESC_TAG);
|
|
desc->payload.els_req = word0;
|
|
desc->length = cpu_to_be32(sizeof(desc->payload));
|
|
}
|
|
|
|
void
|
|
lpfc_rdp_res_sfp_desc(struct fc_rdp_sfp_desc *desc,
|
|
uint8_t *page_a0, uint8_t *page_a2)
|
|
{
|
|
uint16_t wavelength;
|
|
uint16_t temperature;
|
|
uint16_t rx_power;
|
|
uint16_t tx_bias;
|
|
uint16_t tx_power;
|
|
uint16_t vcc;
|
|
uint16_t flag = 0;
|
|
struct sff_trasnceiver_codes_byte4 *trasn_code_byte4;
|
|
struct sff_trasnceiver_codes_byte5 *trasn_code_byte5;
|
|
|
|
desc->tag = cpu_to_be32(RDP_SFP_DESC_TAG);
|
|
|
|
trasn_code_byte4 = (struct sff_trasnceiver_codes_byte4 *)
|
|
&page_a0[SSF_TRANSCEIVER_CODE_B4];
|
|
trasn_code_byte5 = (struct sff_trasnceiver_codes_byte5 *)
|
|
&page_a0[SSF_TRANSCEIVER_CODE_B5];
|
|
|
|
if ((trasn_code_byte4->fc_sw_laser) ||
|
|
(trasn_code_byte5->fc_sw_laser_sl) ||
|
|
(trasn_code_byte5->fc_sw_laser_sn)) { /* check if its short WL */
|
|
flag |= (SFP_FLAG_PT_SWLASER << SFP_FLAG_PT_SHIFT);
|
|
} else if (trasn_code_byte4->fc_lw_laser) {
|
|
wavelength = (page_a0[SSF_WAVELENGTH_B1] << 8) |
|
|
page_a0[SSF_WAVELENGTH_B0];
|
|
if (wavelength == SFP_WAVELENGTH_LC1310)
|
|
flag |= SFP_FLAG_PT_LWLASER_LC1310 << SFP_FLAG_PT_SHIFT;
|
|
if (wavelength == SFP_WAVELENGTH_LL1550)
|
|
flag |= SFP_FLAG_PT_LWLASER_LL1550 << SFP_FLAG_PT_SHIFT;
|
|
}
|
|
/* check if its SFP+ */
|
|
flag |= ((page_a0[SSF_IDENTIFIER] == SFF_PG0_IDENT_SFP) ?
|
|
SFP_FLAG_CT_SFP_PLUS : SFP_FLAG_CT_UNKNOWN)
|
|
<< SFP_FLAG_CT_SHIFT;
|
|
|
|
/* check if its OPTICAL */
|
|
flag |= ((page_a0[SSF_CONNECTOR] == SFF_PG0_CONNECTOR_LC) ?
|
|
SFP_FLAG_IS_OPTICAL_PORT : 0)
|
|
<< SFP_FLAG_IS_OPTICAL_SHIFT;
|
|
|
|
temperature = (page_a2[SFF_TEMPERATURE_B1] << 8 |
|
|
page_a2[SFF_TEMPERATURE_B0]);
|
|
vcc = (page_a2[SFF_VCC_B1] << 8 |
|
|
page_a2[SFF_VCC_B0]);
|
|
tx_power = (page_a2[SFF_TXPOWER_B1] << 8 |
|
|
page_a2[SFF_TXPOWER_B0]);
|
|
tx_bias = (page_a2[SFF_TX_BIAS_CURRENT_B1] << 8 |
|
|
page_a2[SFF_TX_BIAS_CURRENT_B0]);
|
|
rx_power = (page_a2[SFF_RXPOWER_B1] << 8 |
|
|
page_a2[SFF_RXPOWER_B0]);
|
|
desc->sfp_info.temperature = cpu_to_be16(temperature);
|
|
desc->sfp_info.rx_power = cpu_to_be16(rx_power);
|
|
desc->sfp_info.tx_bias = cpu_to_be16(tx_bias);
|
|
desc->sfp_info.tx_power = cpu_to_be16(tx_power);
|
|
desc->sfp_info.vcc = cpu_to_be16(vcc);
|
|
|
|
desc->sfp_info.flags = cpu_to_be16(flag);
|
|
desc->length = cpu_to_be32(sizeof(desc->sfp_info));
|
|
}
|
|
|
|
void
|
|
lpfc_rdp_res_link_error(struct fc_rdp_link_error_status_desc *desc,
|
|
READ_LNK_VAR *stat)
|
|
{
|
|
uint32_t type;
|
|
|
|
desc->tag = cpu_to_be32(RDP_LINK_ERROR_STATUS_DESC_TAG);
|
|
|
|
type = VN_PT_PHY_PF_PORT << VN_PT_PHY_SHIFT;
|
|
|
|
desc->info.port_type = cpu_to_be32(type);
|
|
|
|
desc->info.link_status.link_failure_cnt =
|
|
cpu_to_be32(stat->linkFailureCnt);
|
|
desc->info.link_status.loss_of_synch_cnt =
|
|
cpu_to_be32(stat->lossSyncCnt);
|
|
desc->info.link_status.loss_of_signal_cnt =
|
|
cpu_to_be32(stat->lossSignalCnt);
|
|
desc->info.link_status.primitive_seq_proto_err =
|
|
cpu_to_be32(stat->primSeqErrCnt);
|
|
desc->info.link_status.invalid_trans_word =
|
|
cpu_to_be32(stat->invalidXmitWord);
|
|
desc->info.link_status.invalid_crc_cnt = cpu_to_be32(stat->crcCnt);
|
|
|
|
desc->length = cpu_to_be32(sizeof(desc->info));
|
|
}
|
|
|
|
void
|
|
lpfc_rdp_res_bbc_desc(struct fc_rdp_bbc_desc *desc, READ_LNK_VAR *stat,
|
|
struct lpfc_vport *vport)
|
|
{
|
|
desc->tag = cpu_to_be32(RDP_BBC_DESC_TAG);
|
|
|
|
desc->bbc_info.port_bbc = cpu_to_be32(
|
|
vport->fc_sparam.cmn.bbCreditMsb |
|
|
vport->fc_sparam.cmn.bbCreditlsb << 8);
|
|
if (vport->phba->fc_topology != LPFC_TOPOLOGY_LOOP)
|
|
desc->bbc_info.attached_port_bbc = cpu_to_be32(
|
|
vport->phba->fc_fabparam.cmn.bbCreditMsb |
|
|
vport->phba->fc_fabparam.cmn.bbCreditlsb << 8);
|
|
else
|
|
desc->bbc_info.attached_port_bbc = 0;
|
|
|
|
desc->bbc_info.rtt = 0;
|
|
desc->length = cpu_to_be32(sizeof(desc->bbc_info));
|
|
}
|
|
|
|
void
|
|
lpfc_rdp_res_oed_temp_desc(struct fc_rdp_oed_sfp_desc *desc, uint8_t *page_a2)
|
|
{
|
|
uint32_t flags;
|
|
|
|
desc->tag = cpu_to_be32(RDP_OED_DESC_TAG);
|
|
|
|
desc->oed_info.hi_alarm =
|
|
cpu_to_be16(page_a2[SSF_TEMP_HIGH_ALARM]);
|
|
desc->oed_info.lo_alarm = cpu_to_be16(page_a2[SSF_TEMP_LOW_ALARM]);
|
|
desc->oed_info.hi_warning =
|
|
cpu_to_be16(page_a2[SSF_TEMP_HIGH_WARNING]);
|
|
desc->oed_info.lo_warning =
|
|
cpu_to_be16(page_a2[SSF_TEMP_LOW_WARNING]);
|
|
flags = 0xf; /* All four are valid */
|
|
flags |= ((0xf & RDP_OED_TEMPERATURE) << RDP_OED_TYPE_SHIFT);
|
|
desc->oed_info.function_flags = cpu_to_be32(flags);
|
|
desc->length = cpu_to_be32(sizeof(desc->oed_info));
|
|
}
|
|
|
|
void
|
|
lpfc_rdp_res_oed_voltage_desc(struct fc_rdp_oed_sfp_desc *desc,
|
|
uint8_t *page_a2)
|
|
{
|
|
uint32_t flags;
|
|
|
|
desc->tag = cpu_to_be32(RDP_OED_DESC_TAG);
|
|
|
|
desc->oed_info.hi_alarm =
|
|
cpu_to_be16(page_a2[SSF_VOLTAGE_HIGH_ALARM]);
|
|
desc->oed_info.lo_alarm = cpu_to_be16(page_a2[SSF_VOLTAGE_LOW_ALARM]);
|
|
desc->oed_info.hi_warning =
|
|
cpu_to_be16(page_a2[SSF_VOLTAGE_HIGH_WARNING]);
|
|
desc->oed_info.lo_warning =
|
|
cpu_to_be16(page_a2[SSF_VOLTAGE_LOW_WARNING]);
|
|
flags = 0xf; /* All four are valid */
|
|
flags |= ((0xf & RDP_OED_VOLTAGE) << RDP_OED_TYPE_SHIFT);
|
|
desc->oed_info.function_flags = cpu_to_be32(flags);
|
|
desc->length = cpu_to_be32(sizeof(desc->oed_info));
|
|
}
|
|
|
|
void
|
|
lpfc_rdp_res_oed_txbias_desc(struct fc_rdp_oed_sfp_desc *desc,
|
|
uint8_t *page_a2)
|
|
{
|
|
uint32_t flags;
|
|
|
|
desc->tag = cpu_to_be32(RDP_OED_DESC_TAG);
|
|
|
|
desc->oed_info.hi_alarm =
|
|
cpu_to_be16(page_a2[SSF_BIAS_HIGH_ALARM]);
|
|
desc->oed_info.lo_alarm = cpu_to_be16(page_a2[SSF_BIAS_LOW_ALARM]);
|
|
desc->oed_info.hi_warning =
|
|
cpu_to_be16(page_a2[SSF_BIAS_HIGH_WARNING]);
|
|
desc->oed_info.lo_warning =
|
|
cpu_to_be16(page_a2[SSF_BIAS_LOW_WARNING]);
|
|
flags = 0xf; /* All four are valid */
|
|
flags |= ((0xf & RDP_OED_TXBIAS) << RDP_OED_TYPE_SHIFT);
|
|
desc->oed_info.function_flags = cpu_to_be32(flags);
|
|
desc->length = cpu_to_be32(sizeof(desc->oed_info));
|
|
}
|
|
|
|
void
|
|
lpfc_rdp_res_oed_txpower_desc(struct fc_rdp_oed_sfp_desc *desc,
|
|
uint8_t *page_a2)
|
|
{
|
|
uint32_t flags;
|
|
|
|
desc->tag = cpu_to_be32(RDP_OED_DESC_TAG);
|
|
|
|
desc->oed_info.hi_alarm =
|
|
cpu_to_be16(page_a2[SSF_TXPOWER_HIGH_ALARM]);
|
|
desc->oed_info.lo_alarm = cpu_to_be16(page_a2[SSF_TXPOWER_LOW_ALARM]);
|
|
desc->oed_info.hi_warning =
|
|
cpu_to_be16(page_a2[SSF_TXPOWER_HIGH_WARNING]);
|
|
desc->oed_info.lo_warning =
|
|
cpu_to_be16(page_a2[SSF_TXPOWER_LOW_WARNING]);
|
|
flags = 0xf; /* All four are valid */
|
|
flags |= ((0xf & RDP_OED_TXPOWER) << RDP_OED_TYPE_SHIFT);
|
|
desc->oed_info.function_flags = cpu_to_be32(flags);
|
|
desc->length = cpu_to_be32(sizeof(desc->oed_info));
|
|
}
|
|
|
|
|
|
void
|
|
lpfc_rdp_res_oed_rxpower_desc(struct fc_rdp_oed_sfp_desc *desc,
|
|
uint8_t *page_a2)
|
|
{
|
|
uint32_t flags;
|
|
|
|
desc->tag = cpu_to_be32(RDP_OED_DESC_TAG);
|
|
|
|
desc->oed_info.hi_alarm =
|
|
cpu_to_be16(page_a2[SSF_RXPOWER_HIGH_ALARM]);
|
|
desc->oed_info.lo_alarm = cpu_to_be16(page_a2[SSF_RXPOWER_LOW_ALARM]);
|
|
desc->oed_info.hi_warning =
|
|
cpu_to_be16(page_a2[SSF_RXPOWER_HIGH_WARNING]);
|
|
desc->oed_info.lo_warning =
|
|
cpu_to_be16(page_a2[SSF_RXPOWER_LOW_WARNING]);
|
|
flags = 0xf; /* All four are valid */
|
|
flags |= ((0xf & RDP_OED_RXPOWER) << RDP_OED_TYPE_SHIFT);
|
|
desc->oed_info.function_flags = cpu_to_be32(flags);
|
|
desc->length = cpu_to_be32(sizeof(desc->oed_info));
|
|
}
|
|
|
|
void
|
|
lpfc_rdp_res_opd_desc(struct fc_rdp_opd_sfp_desc *desc,
|
|
uint8_t *page_a0, struct lpfc_vport *vport)
|
|
{
|
|
desc->tag = cpu_to_be32(RDP_OPD_DESC_TAG);
|
|
memcpy(desc->opd_info.vendor_name, &page_a0[SSF_VENDOR_NAME], 16);
|
|
memcpy(desc->opd_info.model_number, &page_a0[SSF_VENDOR_PN], 16);
|
|
memcpy(desc->opd_info.serial_number, &page_a0[SSF_VENDOR_SN], 16);
|
|
memcpy(desc->opd_info.revision, &page_a0[SSF_VENDOR_REV], 2);
|
|
memcpy(desc->opd_info.date, &page_a0[SSF_DATE_CODE], 8);
|
|
desc->length = cpu_to_be32(sizeof(desc->opd_info));
|
|
}
|
|
|
|
int
|
|
lpfc_rdp_res_fec_desc(struct fc_fec_rdp_desc *desc, READ_LNK_VAR *stat)
|
|
{
|
|
if (bf_get(lpfc_read_link_stat_gec2, stat) == 0)
|
|
return 0;
|
|
desc->tag = cpu_to_be32(RDP_FEC_DESC_TAG);
|
|
|
|
desc->info.CorrectedBlocks =
|
|
cpu_to_be32(stat->fecCorrBlkCount);
|
|
desc->info.UncorrectableBlocks =
|
|
cpu_to_be32(stat->fecUncorrBlkCount);
|
|
|
|
desc->length = cpu_to_be32(sizeof(desc->info));
|
|
|
|
return sizeof(struct fc_fec_rdp_desc);
|
|
}
|
|
|
|
void
|
|
lpfc_rdp_res_speed(struct fc_rdp_port_speed_desc *desc, struct lpfc_hba *phba)
|
|
{
|
|
uint16_t rdp_cap = 0;
|
|
uint16_t rdp_speed;
|
|
|
|
desc->tag = cpu_to_be32(RDP_PORT_SPEED_DESC_TAG);
|
|
|
|
switch (phba->fc_linkspeed) {
|
|
case LPFC_LINK_SPEED_1GHZ:
|
|
rdp_speed = RDP_PS_1GB;
|
|
break;
|
|
case LPFC_LINK_SPEED_2GHZ:
|
|
rdp_speed = RDP_PS_2GB;
|
|
break;
|
|
case LPFC_LINK_SPEED_4GHZ:
|
|
rdp_speed = RDP_PS_4GB;
|
|
break;
|
|
case LPFC_LINK_SPEED_8GHZ:
|
|
rdp_speed = RDP_PS_8GB;
|
|
break;
|
|
case LPFC_LINK_SPEED_10GHZ:
|
|
rdp_speed = RDP_PS_10GB;
|
|
break;
|
|
case LPFC_LINK_SPEED_16GHZ:
|
|
rdp_speed = RDP_PS_16GB;
|
|
break;
|
|
case LPFC_LINK_SPEED_32GHZ:
|
|
rdp_speed = RDP_PS_32GB;
|
|
break;
|
|
default:
|
|
rdp_speed = RDP_PS_UNKNOWN;
|
|
break;
|
|
}
|
|
|
|
desc->info.port_speed.speed = cpu_to_be16(rdp_speed);
|
|
|
|
if (phba->lmt & LMT_32Gb)
|
|
rdp_cap |= RDP_PS_32GB;
|
|
if (phba->lmt & LMT_16Gb)
|
|
rdp_cap |= RDP_PS_16GB;
|
|
if (phba->lmt & LMT_10Gb)
|
|
rdp_cap |= RDP_PS_10GB;
|
|
if (phba->lmt & LMT_8Gb)
|
|
rdp_cap |= RDP_PS_8GB;
|
|
if (phba->lmt & LMT_4Gb)
|
|
rdp_cap |= RDP_PS_4GB;
|
|
if (phba->lmt & LMT_2Gb)
|
|
rdp_cap |= RDP_PS_2GB;
|
|
if (phba->lmt & LMT_1Gb)
|
|
rdp_cap |= RDP_PS_1GB;
|
|
|
|
if (rdp_cap == 0)
|
|
rdp_cap = RDP_CAP_UNKNOWN;
|
|
if (phba->cfg_link_speed != LPFC_USER_LINK_SPEED_AUTO)
|
|
rdp_cap |= RDP_CAP_USER_CONFIGURED;
|
|
|
|
desc->info.port_speed.capabilities = cpu_to_be16(rdp_cap);
|
|
desc->length = cpu_to_be32(sizeof(desc->info));
|
|
}
|
|
|
|
void
|
|
lpfc_rdp_res_diag_port_names(struct fc_rdp_port_name_desc *desc,
|
|
struct lpfc_hba *phba)
|
|
{
|
|
|
|
desc->tag = cpu_to_be32(RDP_PORT_NAMES_DESC_TAG);
|
|
|
|
memcpy(desc->port_names.wwnn, phba->wwnn,
|
|
sizeof(desc->port_names.wwnn));
|
|
|
|
memcpy(desc->port_names.wwpn, &phba->wwpn,
|
|
sizeof(desc->port_names.wwpn));
|
|
|
|
desc->length = cpu_to_be32(sizeof(desc->port_names));
|
|
}
|
|
|
|
void
|
|
lpfc_rdp_res_attach_port_names(struct fc_rdp_port_name_desc *desc,
|
|
struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
|
|
{
|
|
|
|
desc->tag = cpu_to_be32(RDP_PORT_NAMES_DESC_TAG);
|
|
if (vport->fc_flag & FC_FABRIC) {
|
|
memcpy(desc->port_names.wwnn, &vport->fabric_nodename,
|
|
sizeof(desc->port_names.wwnn));
|
|
|
|
memcpy(desc->port_names.wwpn, &vport->fabric_portname,
|
|
sizeof(desc->port_names.wwpn));
|
|
} else { /* Point to Point */
|
|
memcpy(desc->port_names.wwnn, &ndlp->nlp_nodename,
|
|
sizeof(desc->port_names.wwnn));
|
|
|
|
memcpy(desc->port_names.wwnn, &ndlp->nlp_portname,
|
|
sizeof(desc->port_names.wwpn));
|
|
}
|
|
|
|
desc->length = cpu_to_be32(sizeof(desc->port_names));
|
|
}
|
|
|
|
void
|
|
lpfc_els_rdp_cmpl(struct lpfc_hba *phba, struct lpfc_rdp_context *rdp_context,
|
|
int status)
|
|
{
|
|
struct lpfc_nodelist *ndlp = rdp_context->ndlp;
|
|
struct lpfc_vport *vport = ndlp->vport;
|
|
struct lpfc_iocbq *elsiocb;
|
|
struct ulp_bde64 *bpl;
|
|
IOCB_t *icmd;
|
|
uint8_t *pcmd;
|
|
struct ls_rjt *stat;
|
|
struct fc_rdp_res_frame *rdp_res;
|
|
uint32_t cmdsize;
|
|
int rc, fec_size;
|
|
|
|
if (status != SUCCESS)
|
|
goto error;
|
|
|
|
/* This will change once we know the true size of the RDP payload */
|
|
cmdsize = sizeof(struct fc_rdp_res_frame);
|
|
|
|
elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize,
|
|
lpfc_max_els_tries, rdp_context->ndlp,
|
|
rdp_context->ndlp->nlp_DID, ELS_CMD_ACC);
|
|
lpfc_nlp_put(ndlp);
|
|
if (!elsiocb)
|
|
goto free_rdp_context;
|
|
|
|
icmd = &elsiocb->iocb;
|
|
icmd->ulpContext = rdp_context->rx_id;
|
|
icmd->unsli3.rcvsli3.ox_id = rdp_context->ox_id;
|
|
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
|
|
"2171 Xmit RDP response tag x%x xri x%x, "
|
|
"did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x",
|
|
elsiocb->iotag, elsiocb->iocb.ulpContext,
|
|
ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
|
|
ndlp->nlp_rpi);
|
|
rdp_res = (struct fc_rdp_res_frame *)
|
|
(((struct lpfc_dmabuf *) elsiocb->context2)->virt);
|
|
pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
|
|
memset(pcmd, 0, sizeof(struct fc_rdp_res_frame));
|
|
*((uint32_t *) (pcmd)) = ELS_CMD_ACC;
|
|
|
|
/* For RDP payload */
|
|
lpfc_rdp_res_link_service(&rdp_res->link_service_desc, ELS_CMD_RDP);
|
|
|
|
lpfc_rdp_res_sfp_desc(&rdp_res->sfp_desc,
|
|
rdp_context->page_a0, rdp_context->page_a2);
|
|
lpfc_rdp_res_speed(&rdp_res->portspeed_desc, phba);
|
|
lpfc_rdp_res_link_error(&rdp_res->link_error_desc,
|
|
&rdp_context->link_stat);
|
|
lpfc_rdp_res_diag_port_names(&rdp_res->diag_port_names_desc, phba);
|
|
lpfc_rdp_res_attach_port_names(&rdp_res->attached_port_names_desc,
|
|
vport, ndlp);
|
|
lpfc_rdp_res_bbc_desc(&rdp_res->bbc_desc, &rdp_context->link_stat,
|
|
vport);
|
|
lpfc_rdp_res_oed_temp_desc(&rdp_res->oed_temp_desc,
|
|
rdp_context->page_a2);
|
|
lpfc_rdp_res_oed_voltage_desc(&rdp_res->oed_voltage_desc,
|
|
rdp_context->page_a2);
|
|
lpfc_rdp_res_oed_txbias_desc(&rdp_res->oed_txbias_desc,
|
|
rdp_context->page_a2);
|
|
lpfc_rdp_res_oed_txpower_desc(&rdp_res->oed_txpower_desc,
|
|
rdp_context->page_a2);
|
|
lpfc_rdp_res_oed_rxpower_desc(&rdp_res->oed_rxpower_desc,
|
|
rdp_context->page_a2);
|
|
lpfc_rdp_res_opd_desc(&rdp_res->opd_desc, rdp_context->page_a0, vport);
|
|
fec_size = lpfc_rdp_res_fec_desc(&rdp_res->fec_desc,
|
|
&rdp_context->link_stat);
|
|
rdp_res->length = cpu_to_be32(fec_size + RDP_DESC_PAYLOAD_SIZE);
|
|
elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
|
|
|
|
/* Now that we know the true size of the payload, update the BPL */
|
|
bpl = (struct ulp_bde64 *)
|
|
(((struct lpfc_dmabuf *)(elsiocb->context3))->virt);
|
|
bpl->tus.f.bdeSize = (fec_size + RDP_DESC_PAYLOAD_SIZE + 8);
|
|
bpl->tus.f.bdeFlags = 0;
|
|
bpl->tus.w = le32_to_cpu(bpl->tus.w);
|
|
|
|
phba->fc_stat.elsXmitACC++;
|
|
rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
|
|
if (rc == IOCB_ERROR)
|
|
lpfc_els_free_iocb(phba, elsiocb);
|
|
|
|
kfree(rdp_context);
|
|
|
|
return;
|
|
error:
|
|
cmdsize = 2 * sizeof(uint32_t);
|
|
elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, lpfc_max_els_tries,
|
|
ndlp, ndlp->nlp_DID, ELS_CMD_LS_RJT);
|
|
lpfc_nlp_put(ndlp);
|
|
if (!elsiocb)
|
|
goto free_rdp_context;
|
|
|
|
icmd = &elsiocb->iocb;
|
|
icmd->ulpContext = rdp_context->rx_id;
|
|
icmd->unsli3.rcvsli3.ox_id = rdp_context->ox_id;
|
|
pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
|
|
|
|
*((uint32_t *) (pcmd)) = ELS_CMD_LS_RJT;
|
|
stat = (struct ls_rjt *)(pcmd + sizeof(uint32_t));
|
|
stat->un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
|
|
|
|
phba->fc_stat.elsXmitLSRJT++;
|
|
elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
|
|
rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
|
|
|
|
if (rc == IOCB_ERROR)
|
|
lpfc_els_free_iocb(phba, elsiocb);
|
|
free_rdp_context:
|
|
kfree(rdp_context);
|
|
}
|
|
|
|
int
|
|
lpfc_get_rdp_info(struct lpfc_hba *phba, struct lpfc_rdp_context *rdp_context)
|
|
{
|
|
LPFC_MBOXQ_t *mbox = NULL;
|
|
int rc;
|
|
|
|
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (!mbox) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_ELS,
|
|
"7105 failed to allocate mailbox memory");
|
|
return 1;
|
|
}
|
|
|
|
if (lpfc_sli4_dump_page_a0(phba, mbox))
|
|
goto prep_mbox_fail;
|
|
mbox->vport = rdp_context->ndlp->vport;
|
|
mbox->mbox_cmpl = lpfc_mbx_cmpl_rdp_page_a0;
|
|
mbox->context2 = (struct lpfc_rdp_context *) rdp_context;
|
|
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
|
|
if (rc == MBX_NOT_FINISHED)
|
|
goto issue_mbox_fail;
|
|
|
|
return 0;
|
|
|
|
prep_mbox_fail:
|
|
issue_mbox_fail:
|
|
mempool_free(mbox, phba->mbox_mem_pool);
|
|
return 1;
|
|
}
|
|
|
|
/*
|
|
* lpfc_els_rcv_rdp - Process an unsolicited RDP ELS.
|
|
* @vport: pointer to a host virtual N_Port data structure.
|
|
* @cmdiocb: pointer to lpfc command iocb data structure.
|
|
* @ndlp: pointer to a node-list data structure.
|
|
*
|
|
* This routine processes an unsolicited RDP(Read Diagnostic Parameters)
|
|
* IOCB. First, the payload of the unsolicited RDP is checked.
|
|
* Then it will (1) send MBX_DUMP_MEMORY, Embedded DMP_LMSD sub command TYPE-3
|
|
* for Page A0, (2) send MBX_DUMP_MEMORY, DMP_LMSD for Page A2,
|
|
* (3) send MBX_READ_LNK_STAT to get link stat, (4) Call lpfc_els_rdp_cmpl
|
|
* gather all data and send RDP response.
|
|
*
|
|
* Return code
|
|
* 0 - Sent the acc response
|
|
* 1 - Sent the reject response.
|
|
*/
|
|
static int
|
|
lpfc_els_rcv_rdp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
|
|
struct lpfc_nodelist *ndlp)
|
|
{
|
|
struct lpfc_hba *phba = vport->phba;
|
|
struct lpfc_dmabuf *pcmd;
|
|
uint8_t rjt_err, rjt_expl = LSEXP_NOTHING_MORE;
|
|
struct fc_rdp_req_frame *rdp_req;
|
|
struct lpfc_rdp_context *rdp_context;
|
|
IOCB_t *cmd = NULL;
|
|
struct ls_rjt stat;
|
|
|
|
if (phba->sli_rev < LPFC_SLI_REV4 ||
|
|
(bf_get(lpfc_sli_intf_if_type,
|
|
&phba->sli4_hba.sli_intf) !=
|
|
LPFC_SLI_INTF_IF_TYPE_2)) {
|
|
rjt_err = LSRJT_UNABLE_TPC;
|
|
rjt_expl = LSEXP_REQ_UNSUPPORTED;
|
|
goto error;
|
|
}
|
|
|
|
if (phba->sli_rev < LPFC_SLI_REV4 || (phba->hba_flag & HBA_FCOE_MODE)) {
|
|
rjt_err = LSRJT_UNABLE_TPC;
|
|
rjt_expl = LSEXP_REQ_UNSUPPORTED;
|
|
goto error;
|
|
}
|
|
|
|
pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
|
|
rdp_req = (struct fc_rdp_req_frame *) pcmd->virt;
|
|
|
|
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
|
|
"2422 ELS RDP Request "
|
|
"dec len %d tag x%x port_id %d len %d\n",
|
|
be32_to_cpu(rdp_req->rdp_des_length),
|
|
be32_to_cpu(rdp_req->nport_id_desc.tag),
|
|
be32_to_cpu(rdp_req->nport_id_desc.nport_id),
|
|
be32_to_cpu(rdp_req->nport_id_desc.length));
|
|
|
|
if (sizeof(struct fc_rdp_nport_desc) !=
|
|
be32_to_cpu(rdp_req->rdp_des_length))
|
|
goto rjt_logerr;
|
|
if (RDP_N_PORT_DESC_TAG != be32_to_cpu(rdp_req->nport_id_desc.tag))
|
|
goto rjt_logerr;
|
|
if (RDP_NPORT_ID_SIZE !=
|
|
be32_to_cpu(rdp_req->nport_id_desc.length))
|
|
goto rjt_logerr;
|
|
rdp_context = kzalloc(sizeof(struct lpfc_rdp_context), GFP_KERNEL);
|
|
if (!rdp_context) {
|
|
rjt_err = LSRJT_UNABLE_TPC;
|
|
goto error;
|
|
}
|
|
|
|
cmd = &cmdiocb->iocb;
|
|
rdp_context->ndlp = lpfc_nlp_get(ndlp);
|
|
rdp_context->ox_id = cmd->unsli3.rcvsli3.ox_id;
|
|
rdp_context->rx_id = cmd->ulpContext;
|
|
rdp_context->cmpl = lpfc_els_rdp_cmpl;
|
|
if (lpfc_get_rdp_info(phba, rdp_context)) {
|
|
lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_ELS,
|
|
"2423 Unable to send mailbox");
|
|
kfree(rdp_context);
|
|
rjt_err = LSRJT_UNABLE_TPC;
|
|
lpfc_nlp_put(ndlp);
|
|
goto error;
|
|
}
|
|
|
|
return 0;
|
|
|
|
rjt_logerr:
|
|
rjt_err = LSRJT_LOGICAL_ERR;
|
|
|
|
error:
|
|
memset(&stat, 0, sizeof(stat));
|
|
stat.un.b.lsRjtRsnCode = rjt_err;
|
|
stat.un.b.lsRjtRsnCodeExp = rjt_expl;
|
|
lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
|
|
return 1;
|
|
}
|
|
|
|
|
|
static void
|
|
lpfc_els_lcb_rsp(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
|
|
{
|
|
MAILBOX_t *mb;
|
|
IOCB_t *icmd;
|
|
uint8_t *pcmd;
|
|
struct lpfc_iocbq *elsiocb;
|
|
struct lpfc_nodelist *ndlp;
|
|
struct ls_rjt *stat;
|
|
union lpfc_sli4_cfg_shdr *shdr;
|
|
struct lpfc_lcb_context *lcb_context;
|
|
struct fc_lcb_res_frame *lcb_res;
|
|
uint32_t cmdsize, shdr_status, shdr_add_status;
|
|
int rc;
|
|
|
|
mb = &pmb->u.mb;
|
|
lcb_context = (struct lpfc_lcb_context *)pmb->context1;
|
|
ndlp = lcb_context->ndlp;
|
|
pmb->context1 = NULL;
|
|
pmb->context2 = NULL;
|
|
|
|
shdr = (union lpfc_sli4_cfg_shdr *)
|
|
&pmb->u.mqe.un.beacon_config.header.cfg_shdr;
|
|
shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
|
|
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
|
|
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_MBOX,
|
|
"0194 SET_BEACON_CONFIG mailbox "
|
|
"completed with status x%x add_status x%x,"
|
|
" mbx status x%x\n",
|
|
shdr_status, shdr_add_status, mb->mbxStatus);
|
|
|
|
if (mb->mbxStatus && !(shdr_status &&
|
|
shdr_add_status == ADD_STATUS_OPERATION_ALREADY_ACTIVE)) {
|
|
mempool_free(pmb, phba->mbox_mem_pool);
|
|
goto error;
|
|
}
|
|
|
|
mempool_free(pmb, phba->mbox_mem_pool);
|
|
cmdsize = sizeof(struct fc_lcb_res_frame);
|
|
elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
|
|
lpfc_max_els_tries, ndlp,
|
|
ndlp->nlp_DID, ELS_CMD_ACC);
|
|
|
|
/* Decrement the ndlp reference count from previous mbox command */
|
|
lpfc_nlp_put(ndlp);
|
|
|
|
if (!elsiocb)
|
|
goto free_lcb_context;
|
|
|
|
lcb_res = (struct fc_lcb_res_frame *)
|
|
(((struct lpfc_dmabuf *)elsiocb->context2)->virt);
|
|
|
|
icmd = &elsiocb->iocb;
|
|
icmd->ulpContext = lcb_context->rx_id;
|
|
icmd->unsli3.rcvsli3.ox_id = lcb_context->ox_id;
|
|
|
|
pcmd = (uint8_t *)(((struct lpfc_dmabuf *)elsiocb->context2)->virt);
|
|
*((uint32_t *)(pcmd)) = ELS_CMD_ACC;
|
|
lcb_res->lcb_sub_command = lcb_context->sub_command;
|
|
lcb_res->lcb_type = lcb_context->type;
|
|
lcb_res->lcb_frequency = lcb_context->frequency;
|
|
elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
|
|
phba->fc_stat.elsXmitACC++;
|
|
rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
|
|
if (rc == IOCB_ERROR)
|
|
lpfc_els_free_iocb(phba, elsiocb);
|
|
|
|
kfree(lcb_context);
|
|
return;
|
|
|
|
error:
|
|
cmdsize = sizeof(struct fc_lcb_res_frame);
|
|
elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
|
|
lpfc_max_els_tries, ndlp,
|
|
ndlp->nlp_DID, ELS_CMD_LS_RJT);
|
|
lpfc_nlp_put(ndlp);
|
|
if (!elsiocb)
|
|
goto free_lcb_context;
|
|
|
|
icmd = &elsiocb->iocb;
|
|
icmd->ulpContext = lcb_context->rx_id;
|
|
icmd->unsli3.rcvsli3.ox_id = lcb_context->ox_id;
|
|
pcmd = (uint8_t *)(((struct lpfc_dmabuf *)elsiocb->context2)->virt);
|
|
|
|
*((uint32_t *)(pcmd)) = ELS_CMD_LS_RJT;
|
|
stat = (struct ls_rjt *)(pcmd + sizeof(uint32_t));
|
|
stat->un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
|
|
|
|
elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
|
|
phba->fc_stat.elsXmitLSRJT++;
|
|
rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
|
|
if (rc == IOCB_ERROR)
|
|
lpfc_els_free_iocb(phba, elsiocb);
|
|
free_lcb_context:
|
|
kfree(lcb_context);
|
|
}
|
|
|
|
static int
|
|
lpfc_sli4_set_beacon(struct lpfc_vport *vport,
|
|
struct lpfc_lcb_context *lcb_context,
|
|
uint32_t beacon_state)
|
|
{
|
|
struct lpfc_hba *phba = vport->phba;
|
|
LPFC_MBOXQ_t *mbox = NULL;
|
|
uint32_t len;
|
|
int rc;
|
|
|
|
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (!mbox)
|
|
return 1;
|
|
|
|
len = sizeof(struct lpfc_mbx_set_beacon_config) -
|
|
sizeof(struct lpfc_sli4_cfg_mhdr);
|
|
lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
|
|
LPFC_MBOX_OPCODE_SET_BEACON_CONFIG, len,
|
|
LPFC_SLI4_MBX_EMBED);
|
|
mbox->context1 = (void *)lcb_context;
|
|
mbox->vport = phba->pport;
|
|
mbox->mbox_cmpl = lpfc_els_lcb_rsp;
|
|
bf_set(lpfc_mbx_set_beacon_port_num, &mbox->u.mqe.un.beacon_config,
|
|
phba->sli4_hba.physical_port);
|
|
bf_set(lpfc_mbx_set_beacon_state, &mbox->u.mqe.un.beacon_config,
|
|
beacon_state);
|
|
bf_set(lpfc_mbx_set_beacon_port_type, &mbox->u.mqe.un.beacon_config, 1);
|
|
bf_set(lpfc_mbx_set_beacon_duration, &mbox->u.mqe.un.beacon_config, 0);
|
|
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
|
|
if (rc == MBX_NOT_FINISHED) {
|
|
mempool_free(mbox, phba->mbox_mem_pool);
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/**
|
|
* lpfc_els_rcv_lcb - Process an unsolicited LCB
|
|
* @vport: pointer to a host virtual N_Port data structure.
|
|
* @cmdiocb: pointer to lpfc command iocb data structure.
|
|
* @ndlp: pointer to a node-list data structure.
|
|
*
|
|
* This routine processes an unsolicited LCB(LINK CABLE BEACON) IOCB.
|
|
* First, the payload of the unsolicited LCB is checked.
|
|
* Then based on Subcommand beacon will either turn on or off.
|
|
*
|
|
* Return code
|
|
* 0 - Sent the acc response
|
|
* 1 - Sent the reject response.
|
|
**/
|
|
static int
|
|
lpfc_els_rcv_lcb(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
|
|
struct lpfc_nodelist *ndlp)
|
|
{
|
|
struct lpfc_hba *phba = vport->phba;
|
|
struct lpfc_dmabuf *pcmd;
|
|
uint8_t *lp;
|
|
struct fc_lcb_request_frame *beacon;
|
|
struct lpfc_lcb_context *lcb_context;
|
|
uint8_t state, rjt_err;
|
|
struct ls_rjt stat;
|
|
|
|
pcmd = (struct lpfc_dmabuf *)cmdiocb->context2;
|
|
lp = (uint8_t *)pcmd->virt;
|
|
beacon = (struct fc_lcb_request_frame *)pcmd->virt;
|
|
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
|
|
"0192 ELS LCB Data x%x x%x x%x x%x sub x%x "
|
|
"type x%x frequency %x duration x%x\n",
|
|
lp[0], lp[1], lp[2],
|
|
beacon->lcb_command,
|
|
beacon->lcb_sub_command,
|
|
beacon->lcb_type,
|
|
beacon->lcb_frequency,
|
|
be16_to_cpu(beacon->lcb_duration));
|
|
|
|
if (phba->sli_rev < LPFC_SLI_REV4 ||
|
|
(bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
|
|
LPFC_SLI_INTF_IF_TYPE_2)) {
|
|
rjt_err = LSRJT_CMD_UNSUPPORTED;
|
|
goto rjt;
|
|
}
|
|
|
|
if (phba->hba_flag & HBA_FCOE_MODE) {
|
|
rjt_err = LSRJT_CMD_UNSUPPORTED;
|
|
goto rjt;
|
|
}
|
|
if (beacon->lcb_frequency == 0) {
|
|
rjt_err = LSRJT_CMD_UNSUPPORTED;
|
|
goto rjt;
|
|
}
|
|
if ((beacon->lcb_type != LPFC_LCB_GREEN) &&
|
|
(beacon->lcb_type != LPFC_LCB_AMBER)) {
|
|
rjt_err = LSRJT_CMD_UNSUPPORTED;
|
|
goto rjt;
|
|
}
|
|
if ((beacon->lcb_sub_command != LPFC_LCB_ON) &&
|
|
(beacon->lcb_sub_command != LPFC_LCB_OFF)) {
|
|
rjt_err = LSRJT_CMD_UNSUPPORTED;
|
|
goto rjt;
|
|
}
|
|
if ((beacon->lcb_sub_command == LPFC_LCB_ON) &&
|
|
(beacon->lcb_type != LPFC_LCB_GREEN) &&
|
|
(beacon->lcb_type != LPFC_LCB_AMBER)) {
|
|
rjt_err = LSRJT_CMD_UNSUPPORTED;
|
|
goto rjt;
|
|
}
|
|
if (be16_to_cpu(beacon->lcb_duration) != 0) {
|
|
rjt_err = LSRJT_CMD_UNSUPPORTED;
|
|
goto rjt;
|
|
}
|
|
|
|
lcb_context = kmalloc(sizeof(*lcb_context), GFP_KERNEL);
|
|
if (!lcb_context) {
|
|
rjt_err = LSRJT_UNABLE_TPC;
|
|
goto rjt;
|
|
}
|
|
|
|
state = (beacon->lcb_sub_command == LPFC_LCB_ON) ? 1 : 0;
|
|
lcb_context->sub_command = beacon->lcb_sub_command;
|
|
lcb_context->type = beacon->lcb_type;
|
|
lcb_context->frequency = beacon->lcb_frequency;
|
|
lcb_context->ox_id = cmdiocb->iocb.unsli3.rcvsli3.ox_id;
|
|
lcb_context->rx_id = cmdiocb->iocb.ulpContext;
|
|
lcb_context->ndlp = lpfc_nlp_get(ndlp);
|
|
if (lpfc_sli4_set_beacon(vport, lcb_context, state)) {
|
|
lpfc_printf_vlog(ndlp->vport, KERN_ERR,
|
|
LOG_ELS, "0193 failed to send mail box");
|
|
kfree(lcb_context);
|
|
lpfc_nlp_put(ndlp);
|
|
rjt_err = LSRJT_UNABLE_TPC;
|
|
goto rjt;
|
|
}
|
|
return 0;
|
|
rjt:
|
|
memset(&stat, 0, sizeof(stat));
|
|
stat.un.b.lsRjtRsnCode = rjt_err;
|
|
lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
|
|
return 1;
|
|
}
|
|
|
|
|
|
/**
|
|
* lpfc_els_flush_rscn - Clean up any rscn activities with a vport
|
|
* @vport: pointer to a host virtual N_Port data structure.
|
|
*
|
|
* This routine cleans up any Registration State Change Notification
|
|
* (RSCN) activity with a @vport. Note that the fc_rscn_flush flag of the
|
|
* @vport together with the host_lock is used to prevent multiple thread
|
|
* trying to access the RSCN array on a same @vport at the same time.
|
|
**/
|
|
void
|
|
lpfc_els_flush_rscn(struct lpfc_vport *vport)
|
|
{
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
struct lpfc_hba *phba = vport->phba;
|
|
int i;
|
|
|
|
spin_lock_irq(shost->host_lock);
|
|
if (vport->fc_rscn_flush) {
|
|
/* Another thread is walking fc_rscn_id_list on this vport */
|
|
spin_unlock_irq(shost->host_lock);
|
|
return;
|
|
}
|
|
/* Indicate we are walking lpfc_els_flush_rscn on this vport */
|
|
vport->fc_rscn_flush = 1;
|
|
spin_unlock_irq(shost->host_lock);
|
|
|
|
for (i = 0; i < vport->fc_rscn_id_cnt; i++) {
|
|
lpfc_in_buf_free(phba, vport->fc_rscn_id_list[i]);
|
|
vport->fc_rscn_id_list[i] = NULL;
|
|
}
|
|
spin_lock_irq(shost->host_lock);
|
|
vport->fc_rscn_id_cnt = 0;
|
|
vport->fc_flag &= ~(FC_RSCN_MODE | FC_RSCN_DISCOVERY);
|
|
spin_unlock_irq(shost->host_lock);
|
|
lpfc_can_disctmo(vport);
|
|
/* Indicate we are done walking this fc_rscn_id_list */
|
|
vport->fc_rscn_flush = 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_rscn_payload_check - Check whether there is a pending rscn to a did
|
|
* @vport: pointer to a host virtual N_Port data structure.
|
|
* @did: remote destination port identifier.
|
|
*
|
|
* This routine checks whether there is any pending Registration State
|
|
* Configuration Notification (RSCN) to a @did on @vport.
|
|
*
|
|
* Return code
|
|
* None zero - The @did matched with a pending rscn
|
|
* 0 - not able to match @did with a pending rscn
|
|
**/
|
|
int
|
|
lpfc_rscn_payload_check(struct lpfc_vport *vport, uint32_t did)
|
|
{
|
|
D_ID ns_did;
|
|
D_ID rscn_did;
|
|
uint32_t *lp;
|
|
uint32_t payload_len, i;
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
|
|
ns_did.un.word = did;
|
|
|
|
/* Never match fabric nodes for RSCNs */
|
|
if ((did & Fabric_DID_MASK) == Fabric_DID_MASK)
|
|
return 0;
|
|
|
|
/* If we are doing a FULL RSCN rediscovery, match everything */
|
|
if (vport->fc_flag & FC_RSCN_DISCOVERY)
|
|
return did;
|
|
|
|
spin_lock_irq(shost->host_lock);
|
|
if (vport->fc_rscn_flush) {
|
|
/* Another thread is walking fc_rscn_id_list on this vport */
|
|
spin_unlock_irq(shost->host_lock);
|
|
return 0;
|
|
}
|
|
/* Indicate we are walking fc_rscn_id_list on this vport */
|
|
vport->fc_rscn_flush = 1;
|
|
spin_unlock_irq(shost->host_lock);
|
|
for (i = 0; i < vport->fc_rscn_id_cnt; i++) {
|
|
lp = vport->fc_rscn_id_list[i]->virt;
|
|
payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK);
|
|
payload_len -= sizeof(uint32_t); /* take off word 0 */
|
|
while (payload_len) {
|
|
rscn_did.un.word = be32_to_cpu(*lp++);
|
|
payload_len -= sizeof(uint32_t);
|
|
switch (rscn_did.un.b.resv & RSCN_ADDRESS_FORMAT_MASK) {
|
|
case RSCN_ADDRESS_FORMAT_PORT:
|
|
if ((ns_did.un.b.domain == rscn_did.un.b.domain)
|
|
&& (ns_did.un.b.area == rscn_did.un.b.area)
|
|
&& (ns_did.un.b.id == rscn_did.un.b.id))
|
|
goto return_did_out;
|
|
break;
|
|
case RSCN_ADDRESS_FORMAT_AREA:
|
|
if ((ns_did.un.b.domain == rscn_did.un.b.domain)
|
|
&& (ns_did.un.b.area == rscn_did.un.b.area))
|
|
goto return_did_out;
|
|
break;
|
|
case RSCN_ADDRESS_FORMAT_DOMAIN:
|
|
if (ns_did.un.b.domain == rscn_did.un.b.domain)
|
|
goto return_did_out;
|
|
break;
|
|
case RSCN_ADDRESS_FORMAT_FABRIC:
|
|
goto return_did_out;
|
|
}
|
|
}
|
|
}
|
|
/* Indicate we are done with walking fc_rscn_id_list on this vport */
|
|
vport->fc_rscn_flush = 0;
|
|
return 0;
|
|
return_did_out:
|
|
/* Indicate we are done with walking fc_rscn_id_list on this vport */
|
|
vport->fc_rscn_flush = 0;
|
|
return did;
|
|
}
|
|
|
|
/**
|
|
* lpfc_rscn_recovery_check - Send recovery event to vport nodes matching rscn
|
|
* @vport: pointer to a host virtual N_Port data structure.
|
|
*
|
|
* This routine sends recovery (NLP_EVT_DEVICE_RECOVERY) event to the
|
|
* state machine for a @vport's nodes that are with pending RSCN (Registration
|
|
* State Change Notification).
|
|
*
|
|
* Return code
|
|
* 0 - Successful (currently alway return 0)
|
|
**/
|
|
static int
|
|
lpfc_rscn_recovery_check(struct lpfc_vport *vport)
|
|
{
|
|
struct lpfc_nodelist *ndlp = NULL;
|
|
|
|
/* Move all affected nodes by pending RSCNs to NPR state. */
|
|
list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
|
|
if (!NLP_CHK_NODE_ACT(ndlp) ||
|
|
(ndlp->nlp_state == NLP_STE_UNUSED_NODE) ||
|
|
!lpfc_rscn_payload_check(vport, ndlp->nlp_DID))
|
|
continue;
|
|
lpfc_disc_state_machine(vport, ndlp, NULL,
|
|
NLP_EVT_DEVICE_RECOVERY);
|
|
lpfc_cancel_retry_delay_tmo(vport, ndlp);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_send_rscn_event - Send an RSCN event to management application
|
|
* @vport: pointer to a host virtual N_Port data structure.
|
|
* @cmdiocb: pointer to lpfc command iocb data structure.
|
|
*
|
|
* lpfc_send_rscn_event sends an RSCN netlink event to management
|
|
* applications.
|
|
*/
|
|
static void
|
|
lpfc_send_rscn_event(struct lpfc_vport *vport,
|
|
struct lpfc_iocbq *cmdiocb)
|
|
{
|
|
struct lpfc_dmabuf *pcmd;
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
uint32_t *payload_ptr;
|
|
uint32_t payload_len;
|
|
struct lpfc_rscn_event_header *rscn_event_data;
|
|
|
|
pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
|
|
payload_ptr = (uint32_t *) pcmd->virt;
|
|
payload_len = be32_to_cpu(*payload_ptr & ~ELS_CMD_MASK);
|
|
|
|
rscn_event_data = kmalloc(sizeof(struct lpfc_rscn_event_header) +
|
|
payload_len, GFP_KERNEL);
|
|
if (!rscn_event_data) {
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
|
|
"0147 Failed to allocate memory for RSCN event\n");
|
|
return;
|
|
}
|
|
rscn_event_data->event_type = FC_REG_RSCN_EVENT;
|
|
rscn_event_data->payload_length = payload_len;
|
|
memcpy(rscn_event_data->rscn_payload, payload_ptr,
|
|
payload_len);
|
|
|
|
fc_host_post_vendor_event(shost,
|
|
fc_get_event_number(),
|
|
sizeof(struct lpfc_rscn_event_header) + payload_len,
|
|
(char *)rscn_event_data,
|
|
LPFC_NL_VENDOR_ID);
|
|
|
|
kfree(rscn_event_data);
|
|
}
|
|
|
|
/**
|
|
* lpfc_els_rcv_rscn - Process an unsolicited rscn iocb
|
|
* @vport: pointer to a host virtual N_Port data structure.
|
|
* @cmdiocb: pointer to lpfc command iocb data structure.
|
|
* @ndlp: pointer to a node-list data structure.
|
|
*
|
|
* This routine processes an unsolicited RSCN (Registration State Change
|
|
* Notification) IOCB. First, the payload of the unsolicited RSCN is walked
|
|
* to invoke fc_host_post_event() routine to the FC transport layer. If the
|
|
* discover state machine is about to begin discovery, it just accepts the
|
|
* RSCN and the discovery process will satisfy the RSCN. If this RSCN only
|
|
* contains N_Port IDs for other vports on this HBA, it just accepts the
|
|
* RSCN and ignore processing it. If the state machine is in the recovery
|
|
* state, the fc_rscn_id_list of this @vport is walked and the
|
|
* lpfc_rscn_recovery_check() routine is invoked to send recovery event for
|
|
* all nodes that match RSCN payload. Otherwise, the lpfc_els_handle_rscn()
|
|
* routine is invoked to handle the RSCN event.
|
|
*
|
|
* Return code
|
|
* 0 - Just sent the acc response
|
|
* 1 - Sent the acc response and waited for name server completion
|
|
**/
|
|
static int
|
|
lpfc_els_rcv_rscn(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
|
|
struct lpfc_nodelist *ndlp)
|
|
{
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
struct lpfc_hba *phba = vport->phba;
|
|
struct lpfc_dmabuf *pcmd;
|
|
uint32_t *lp, *datap;
|
|
uint32_t payload_len, length, nportid, *cmd;
|
|
int rscn_cnt;
|
|
int rscn_id = 0, hba_id = 0;
|
|
int i;
|
|
|
|
pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
|
|
lp = (uint32_t *) pcmd->virt;
|
|
|
|
payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK);
|
|
payload_len -= sizeof(uint32_t); /* take off word 0 */
|
|
/* RSCN received */
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
|
|
"0214 RSCN received Data: x%x x%x x%x x%x\n",
|
|
vport->fc_flag, payload_len, *lp,
|
|
vport->fc_rscn_id_cnt);
|
|
|
|
/* Send an RSCN event to the management application */
|
|
lpfc_send_rscn_event(vport, cmdiocb);
|
|
|
|
for (i = 0; i < payload_len/sizeof(uint32_t); i++)
|
|
fc_host_post_event(shost, fc_get_event_number(),
|
|
FCH_EVT_RSCN, lp[i]);
|
|
|
|
/* If we are about to begin discovery, just ACC the RSCN.
|
|
* Discovery processing will satisfy it.
|
|
*/
|
|
if (vport->port_state <= LPFC_NS_QRY) {
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
|
|
"RCV RSCN ignore: did:x%x/ste:x%x flg:x%x",
|
|
ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag);
|
|
|
|
lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
|
|
return 0;
|
|
}
|
|
|
|
/* If this RSCN just contains NPortIDs for other vports on this HBA,
|
|
* just ACC and ignore it.
|
|
*/
|
|
if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
|
|
!(vport->cfg_peer_port_login)) {
|
|
i = payload_len;
|
|
datap = lp;
|
|
while (i > 0) {
|
|
nportid = *datap++;
|
|
nportid = ((be32_to_cpu(nportid)) & Mask_DID);
|
|
i -= sizeof(uint32_t);
|
|
rscn_id++;
|
|
if (lpfc_find_vport_by_did(phba, nportid))
|
|
hba_id++;
|
|
}
|
|
if (rscn_id == hba_id) {
|
|
/* ALL NPortIDs in RSCN are on HBA */
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
|
|
"0219 Ignore RSCN "
|
|
"Data: x%x x%x x%x x%x\n",
|
|
vport->fc_flag, payload_len,
|
|
*lp, vport->fc_rscn_id_cnt);
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
|
|
"RCV RSCN vport: did:x%x/ste:x%x flg:x%x",
|
|
ndlp->nlp_DID, vport->port_state,
|
|
ndlp->nlp_flag);
|
|
|
|
lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb,
|
|
ndlp, NULL);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
spin_lock_irq(shost->host_lock);
|
|
if (vport->fc_rscn_flush) {
|
|
/* Another thread is walking fc_rscn_id_list on this vport */
|
|
vport->fc_flag |= FC_RSCN_DISCOVERY;
|
|
spin_unlock_irq(shost->host_lock);
|
|
/* Send back ACC */
|
|
lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
|
|
return 0;
|
|
}
|
|
/* Indicate we are walking fc_rscn_id_list on this vport */
|
|
vport->fc_rscn_flush = 1;
|
|
spin_unlock_irq(shost->host_lock);
|
|
/* Get the array count after successfully have the token */
|
|
rscn_cnt = vport->fc_rscn_id_cnt;
|
|
/* If we are already processing an RSCN, save the received
|
|
* RSCN payload buffer, cmdiocb->context2 to process later.
|
|
*/
|
|
if (vport->fc_flag & (FC_RSCN_MODE | FC_NDISC_ACTIVE)) {
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
|
|
"RCV RSCN defer: did:x%x/ste:x%x flg:x%x",
|
|
ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag);
|
|
|
|
spin_lock_irq(shost->host_lock);
|
|
vport->fc_flag |= FC_RSCN_DEFERRED;
|
|
if ((rscn_cnt < FC_MAX_HOLD_RSCN) &&
|
|
!(vport->fc_flag & FC_RSCN_DISCOVERY)) {
|
|
vport->fc_flag |= FC_RSCN_MODE;
|
|
spin_unlock_irq(shost->host_lock);
|
|
if (rscn_cnt) {
|
|
cmd = vport->fc_rscn_id_list[rscn_cnt-1]->virt;
|
|
length = be32_to_cpu(*cmd & ~ELS_CMD_MASK);
|
|
}
|
|
if ((rscn_cnt) &&
|
|
(payload_len + length <= LPFC_BPL_SIZE)) {
|
|
*cmd &= ELS_CMD_MASK;
|
|
*cmd |= cpu_to_be32(payload_len + length);
|
|
memcpy(((uint8_t *)cmd) + length, lp,
|
|
payload_len);
|
|
} else {
|
|
vport->fc_rscn_id_list[rscn_cnt] = pcmd;
|
|
vport->fc_rscn_id_cnt++;
|
|
/* If we zero, cmdiocb->context2, the calling
|
|
* routine will not try to free it.
|
|
*/
|
|
cmdiocb->context2 = NULL;
|
|
}
|
|
/* Deferred RSCN */
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
|
|
"0235 Deferred RSCN "
|
|
"Data: x%x x%x x%x\n",
|
|
vport->fc_rscn_id_cnt, vport->fc_flag,
|
|
vport->port_state);
|
|
} else {
|
|
vport->fc_flag |= FC_RSCN_DISCOVERY;
|
|
spin_unlock_irq(shost->host_lock);
|
|
/* ReDiscovery RSCN */
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
|
|
"0234 ReDiscovery RSCN "
|
|
"Data: x%x x%x x%x\n",
|
|
vport->fc_rscn_id_cnt, vport->fc_flag,
|
|
vport->port_state);
|
|
}
|
|
/* Indicate we are done walking fc_rscn_id_list on this vport */
|
|
vport->fc_rscn_flush = 0;
|
|
/* Send back ACC */
|
|
lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
|
|
/* send RECOVERY event for ALL nodes that match RSCN payload */
|
|
lpfc_rscn_recovery_check(vport);
|
|
spin_lock_irq(shost->host_lock);
|
|
vport->fc_flag &= ~FC_RSCN_DEFERRED;
|
|
spin_unlock_irq(shost->host_lock);
|
|
return 0;
|
|
}
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
|
|
"RCV RSCN: did:x%x/ste:x%x flg:x%x",
|
|
ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag);
|
|
|
|
spin_lock_irq(shost->host_lock);
|
|
vport->fc_flag |= FC_RSCN_MODE;
|
|
spin_unlock_irq(shost->host_lock);
|
|
vport->fc_rscn_id_list[vport->fc_rscn_id_cnt++] = pcmd;
|
|
/* Indicate we are done walking fc_rscn_id_list on this vport */
|
|
vport->fc_rscn_flush = 0;
|
|
/*
|
|
* If we zero, cmdiocb->context2, the calling routine will
|
|
* not try to free it.
|
|
*/
|
|
cmdiocb->context2 = NULL;
|
|
lpfc_set_disctmo(vport);
|
|
/* Send back ACC */
|
|
lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
|
|
/* send RECOVERY event for ALL nodes that match RSCN payload */
|
|
lpfc_rscn_recovery_check(vport);
|
|
return lpfc_els_handle_rscn(vport);
|
|
}
|
|
|
|
/**
|
|
* lpfc_els_handle_rscn - Handle rscn for a vport
|
|
* @vport: pointer to a host virtual N_Port data structure.
|
|
*
|
|
* This routine handles the Registration State Configuration Notification
|
|
* (RSCN) for a @vport. If login to NameServer does not exist, a new ndlp shall
|
|
* be created and a Port Login (PLOGI) to the NameServer is issued. Otherwise,
|
|
* if the ndlp to NameServer exists, a Common Transport (CT) command to the
|
|
* NameServer shall be issued. If CT command to the NameServer fails to be
|
|
* issued, the lpfc_els_flush_rscn() routine shall be invoked to clean up any
|
|
* RSCN activities with the @vport.
|
|
*
|
|
* Return code
|
|
* 0 - Cleaned up rscn on the @vport
|
|
* 1 - Wait for plogi to name server before proceed
|
|
**/
|
|
int
|
|
lpfc_els_handle_rscn(struct lpfc_vport *vport)
|
|
{
|
|
struct lpfc_nodelist *ndlp;
|
|
struct lpfc_hba *phba = vport->phba;
|
|
|
|
/* Ignore RSCN if the port is being torn down. */
|
|
if (vport->load_flag & FC_UNLOADING) {
|
|
lpfc_els_flush_rscn(vport);
|
|
return 0;
|
|
}
|
|
|
|
/* Start timer for RSCN processing */
|
|
lpfc_set_disctmo(vport);
|
|
|
|
/* RSCN processed */
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
|
|
"0215 RSCN processed Data: x%x x%x x%x x%x\n",
|
|
vport->fc_flag, 0, vport->fc_rscn_id_cnt,
|
|
vport->port_state);
|
|
|
|
/* To process RSCN, first compare RSCN data with NameServer */
|
|
vport->fc_ns_retry = 0;
|
|
vport->num_disc_nodes = 0;
|
|
|
|
ndlp = lpfc_findnode_did(vport, NameServer_DID);
|
|
if (ndlp && NLP_CHK_NODE_ACT(ndlp)
|
|
&& ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) {
|
|
/* Good ndlp, issue CT Request to NameServer */
|
|
if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, 0) == 0)
|
|
/* Wait for NameServer query cmpl before we can
|
|
continue */
|
|
return 1;
|
|
} else {
|
|
/* If login to NameServer does not exist, issue one */
|
|
/* Good status, issue PLOGI to NameServer */
|
|
ndlp = lpfc_findnode_did(vport, NameServer_DID);
|
|
if (ndlp && NLP_CHK_NODE_ACT(ndlp))
|
|
/* Wait for NameServer login cmpl before we can
|
|
continue */
|
|
return 1;
|
|
|
|
if (ndlp) {
|
|
ndlp = lpfc_enable_node(vport, ndlp,
|
|
NLP_STE_PLOGI_ISSUE);
|
|
if (!ndlp) {
|
|
lpfc_els_flush_rscn(vport);
|
|
return 0;
|
|
}
|
|
ndlp->nlp_prev_state = NLP_STE_UNUSED_NODE;
|
|
} else {
|
|
ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
|
|
if (!ndlp) {
|
|
lpfc_els_flush_rscn(vport);
|
|
return 0;
|
|
}
|
|
lpfc_nlp_init(vport, ndlp, NameServer_DID);
|
|
ndlp->nlp_prev_state = ndlp->nlp_state;
|
|
lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
|
|
}
|
|
ndlp->nlp_type |= NLP_FABRIC;
|
|
lpfc_issue_els_plogi(vport, NameServer_DID, 0);
|
|
/* Wait for NameServer login cmpl before we can
|
|
* continue
|
|
*/
|
|
return 1;
|
|
}
|
|
|
|
lpfc_els_flush_rscn(vport);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_els_rcv_flogi - Process an unsolicited flogi iocb
|
|
* @vport: pointer to a host virtual N_Port data structure.
|
|
* @cmdiocb: pointer to lpfc command iocb data structure.
|
|
* @ndlp: pointer to a node-list data structure.
|
|
*
|
|
* This routine processes Fabric Login (FLOGI) IOCB received as an ELS
|
|
* unsolicited event. An unsolicited FLOGI can be received in a point-to-
|
|
* point topology. As an unsolicited FLOGI should not be received in a loop
|
|
* mode, any unsolicited FLOGI received in loop mode shall be ignored. The
|
|
* lpfc_check_sparm() routine is invoked to check the parameters in the
|
|
* unsolicited FLOGI. If parameters validation failed, the routine
|
|
* lpfc_els_rsp_reject() shall be called with reject reason code set to
|
|
* LSEXP_SPARM_OPTIONS to reject the FLOGI. Otherwise, the Port WWN in the
|
|
* FLOGI shall be compared with the Port WWN of the @vport to determine who
|
|
* will initiate PLOGI. The higher lexicographical value party shall has
|
|
* higher priority (as the winning port) and will initiate PLOGI and
|
|
* communicate Port_IDs (Addresses) for both nodes in PLOGI. The result
|
|
* of this will be marked in the @vport fc_flag field with FC_PT2PT_PLOGI
|
|
* and then the lpfc_els_rsp_acc() routine is invoked to accept the FLOGI.
|
|
*
|
|
* Return code
|
|
* 0 - Successfully processed the unsolicited flogi
|
|
* 1 - Failed to process the unsolicited flogi
|
|
**/
|
|
static int
|
|
lpfc_els_rcv_flogi(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
|
|
struct lpfc_nodelist *ndlp)
|
|
{
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
struct lpfc_hba *phba = vport->phba;
|
|
struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
|
|
uint32_t *lp = (uint32_t *) pcmd->virt;
|
|
IOCB_t *icmd = &cmdiocb->iocb;
|
|
struct serv_parm *sp;
|
|
LPFC_MBOXQ_t *mbox;
|
|
uint32_t cmd, did;
|
|
int rc;
|
|
uint32_t fc_flag = 0;
|
|
uint32_t port_state = 0;
|
|
|
|
cmd = *lp++;
|
|
sp = (struct serv_parm *) lp;
|
|
|
|
/* FLOGI received */
|
|
|
|
lpfc_set_disctmo(vport);
|
|
|
|
if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
|
|
/* We should never receive a FLOGI in loop mode, ignore it */
|
|
did = icmd->un.elsreq64.remoteID;
|
|
|
|
/* An FLOGI ELS command <elsCmd> was received from DID <did> in
|
|
Loop Mode */
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
|
|
"0113 An FLOGI ELS command x%x was "
|
|
"received from DID x%x in Loop Mode\n",
|
|
cmd, did);
|
|
return 1;
|
|
}
|
|
|
|
(void) lpfc_check_sparm(vport, ndlp, sp, CLASS3, 1);
|
|
|
|
|
|
/*
|
|
* If our portname is greater than the remote portname,
|
|
* then we initiate Nport login.
|
|
*/
|
|
|
|
rc = memcmp(&vport->fc_portname, &sp->portName,
|
|
sizeof(struct lpfc_name));
|
|
|
|
if (!rc) {
|
|
if (phba->sli_rev < LPFC_SLI_REV4) {
|
|
mbox = mempool_alloc(phba->mbox_mem_pool,
|
|
GFP_KERNEL);
|
|
if (!mbox)
|
|
return 1;
|
|
lpfc_linkdown(phba);
|
|
lpfc_init_link(phba, mbox,
|
|
phba->cfg_topology,
|
|
phba->cfg_link_speed);
|
|
mbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0;
|
|
mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
|
|
mbox->vport = vport;
|
|
rc = lpfc_sli_issue_mbox(phba, mbox,
|
|
MBX_NOWAIT);
|
|
lpfc_set_loopback_flag(phba);
|
|
if (rc == MBX_NOT_FINISHED)
|
|
mempool_free(mbox, phba->mbox_mem_pool);
|
|
return 1;
|
|
}
|
|
|
|
/* abort the flogi coming back to ourselves
|
|
* due to external loopback on the port.
|
|
*/
|
|
lpfc_els_abort_flogi(phba);
|
|
return 0;
|
|
|
|
} else if (rc > 0) { /* greater than */
|
|
spin_lock_irq(shost->host_lock);
|
|
vport->fc_flag |= FC_PT2PT_PLOGI;
|
|
spin_unlock_irq(shost->host_lock);
|
|
|
|
/* If we have the high WWPN we can assign our own
|
|
* myDID; otherwise, we have to WAIT for a PLOGI
|
|
* from the remote NPort to find out what it
|
|
* will be.
|
|
*/
|
|
vport->fc_myDID = PT2PT_LocalID;
|
|
} else {
|
|
vport->fc_myDID = PT2PT_RemoteID;
|
|
}
|
|
|
|
/*
|
|
* The vport state should go to LPFC_FLOGI only
|
|
* AFTER we issue a FLOGI, not receive one.
|
|
*/
|
|
spin_lock_irq(shost->host_lock);
|
|
fc_flag = vport->fc_flag;
|
|
port_state = vport->port_state;
|
|
vport->fc_flag |= FC_PT2PT;
|
|
vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
|
|
spin_unlock_irq(shost->host_lock);
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
|
|
"3311 Rcv Flogi PS x%x new PS x%x "
|
|
"fc_flag x%x new fc_flag x%x\n",
|
|
port_state, vport->port_state,
|
|
fc_flag, vport->fc_flag);
|
|
|
|
/*
|
|
* We temporarily set fc_myDID to make it look like we are
|
|
* a Fabric. This is done just so we end up with the right
|
|
* did / sid on the FLOGI ACC rsp.
|
|
*/
|
|
did = vport->fc_myDID;
|
|
vport->fc_myDID = Fabric_DID;
|
|
|
|
memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm));
|
|
|
|
/* Send back ACC */
|
|
lpfc_els_rsp_acc(vport, ELS_CMD_FLOGI, cmdiocb, ndlp, NULL);
|
|
|
|
/* Now lets put fc_myDID back to what its supposed to be */
|
|
vport->fc_myDID = did;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_els_rcv_rnid - Process an unsolicited rnid iocb
|
|
* @vport: pointer to a host virtual N_Port data structure.
|
|
* @cmdiocb: pointer to lpfc command iocb data structure.
|
|
* @ndlp: pointer to a node-list data structure.
|
|
*
|
|
* This routine processes Request Node Identification Data (RNID) IOCB
|
|
* received as an ELS unsolicited event. Only when the RNID specified format
|
|
* 0x0 or 0xDF (Topology Discovery Specific Node Identification Data)
|
|
* present, this routine will invoke the lpfc_els_rsp_rnid_acc() routine to
|
|
* Accept (ACC) the RNID ELS command. All the other RNID formats are
|
|
* rejected by invoking the lpfc_els_rsp_reject() routine.
|
|
*
|
|
* Return code
|
|
* 0 - Successfully processed rnid iocb (currently always return 0)
|
|
**/
|
|
static int
|
|
lpfc_els_rcv_rnid(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
|
|
struct lpfc_nodelist *ndlp)
|
|
{
|
|
struct lpfc_dmabuf *pcmd;
|
|
uint32_t *lp;
|
|
RNID *rn;
|
|
struct ls_rjt stat;
|
|
uint32_t cmd;
|
|
|
|
pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
|
|
lp = (uint32_t *) pcmd->virt;
|
|
|
|
cmd = *lp++;
|
|
rn = (RNID *) lp;
|
|
|
|
/* RNID received */
|
|
|
|
switch (rn->Format) {
|
|
case 0:
|
|
case RNID_TOPOLOGY_DISC:
|
|
/* Send back ACC */
|
|
lpfc_els_rsp_rnid_acc(vport, rn->Format, cmdiocb, ndlp);
|
|
break;
|
|
default:
|
|
/* Reject this request because format not supported */
|
|
stat.un.b.lsRjtRsvd0 = 0;
|
|
stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
|
|
stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
|
|
stat.un.b.vendorUnique = 0;
|
|
lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
|
|
NULL);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_els_rcv_echo - Process an unsolicited echo iocb
|
|
* @vport: pointer to a host virtual N_Port data structure.
|
|
* @cmdiocb: pointer to lpfc command iocb data structure.
|
|
* @ndlp: pointer to a node-list data structure.
|
|
*
|
|
* Return code
|
|
* 0 - Successfully processed echo iocb (currently always return 0)
|
|
**/
|
|
static int
|
|
lpfc_els_rcv_echo(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
|
|
struct lpfc_nodelist *ndlp)
|
|
{
|
|
uint8_t *pcmd;
|
|
|
|
pcmd = (uint8_t *) (((struct lpfc_dmabuf *) cmdiocb->context2)->virt);
|
|
|
|
/* skip over first word of echo command to find echo data */
|
|
pcmd += sizeof(uint32_t);
|
|
|
|
lpfc_els_rsp_echo_acc(vport, pcmd, cmdiocb, ndlp);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_els_rcv_lirr - Process an unsolicited lirr iocb
|
|
* @vport: pointer to a host virtual N_Port data structure.
|
|
* @cmdiocb: pointer to lpfc command iocb data structure.
|
|
* @ndlp: pointer to a node-list data structure.
|
|
*
|
|
* This routine processes a Link Incident Report Registration(LIRR) IOCB
|
|
* received as an ELS unsolicited event. Currently, this function just invokes
|
|
* the lpfc_els_rsp_reject() routine to reject the LIRR IOCB unconditionally.
|
|
*
|
|
* Return code
|
|
* 0 - Successfully processed lirr iocb (currently always return 0)
|
|
**/
|
|
static int
|
|
lpfc_els_rcv_lirr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
|
|
struct lpfc_nodelist *ndlp)
|
|
{
|
|
struct ls_rjt stat;
|
|
|
|
/* For now, unconditionally reject this command */
|
|
stat.un.b.lsRjtRsvd0 = 0;
|
|
stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
|
|
stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
|
|
stat.un.b.vendorUnique = 0;
|
|
lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_els_rcv_rrq - Process an unsolicited rrq iocb
|
|
* @vport: pointer to a host virtual N_Port data structure.
|
|
* @cmdiocb: pointer to lpfc command iocb data structure.
|
|
* @ndlp: pointer to a node-list data structure.
|
|
*
|
|
* This routine processes a Reinstate Recovery Qualifier (RRQ) IOCB
|
|
* received as an ELS unsolicited event. A request to RRQ shall only
|
|
* be accepted if the Originator Nx_Port N_Port_ID or the Responder
|
|
* Nx_Port N_Port_ID of the target Exchange is the same as the
|
|
* N_Port_ID of the Nx_Port that makes the request. If the RRQ is
|
|
* not accepted, an LS_RJT with reason code "Unable to perform
|
|
* command request" and reason code explanation "Invalid Originator
|
|
* S_ID" shall be returned. For now, we just unconditionally accept
|
|
* RRQ from the target.
|
|
**/
|
|
static void
|
|
lpfc_els_rcv_rrq(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
|
|
struct lpfc_nodelist *ndlp)
|
|
{
|
|
lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
|
|
if (vport->phba->sli_rev == LPFC_SLI_REV4)
|
|
lpfc_els_clear_rrq(vport, cmdiocb, ndlp);
|
|
}
|
|
|
|
/**
|
|
* lpfc_els_rsp_rls_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @pmb: pointer to the driver internal queue element for mailbox command.
|
|
*
|
|
* This routine is the completion callback function for the MBX_READ_LNK_STAT
|
|
* mailbox command. This callback function is to actually send the Accept
|
|
* (ACC) response to a Read Port Status (RPS) unsolicited IOCB event. It
|
|
* collects the link statistics from the completion of the MBX_READ_LNK_STAT
|
|
* mailbox command, constructs the RPS response with the link statistics
|
|
* collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC
|
|
* response to the RPS.
|
|
*
|
|
* Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
|
|
* will be incremented by 1 for holding the ndlp and the reference to ndlp
|
|
* will be stored into the context1 field of the IOCB for the completion
|
|
* callback function to the RPS Accept Response ELS IOCB command.
|
|
*
|
|
**/
|
|
static void
|
|
lpfc_els_rsp_rls_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
|
|
{
|
|
MAILBOX_t *mb;
|
|
IOCB_t *icmd;
|
|
struct RLS_RSP *rls_rsp;
|
|
uint8_t *pcmd;
|
|
struct lpfc_iocbq *elsiocb;
|
|
struct lpfc_nodelist *ndlp;
|
|
uint16_t oxid;
|
|
uint16_t rxid;
|
|
uint32_t cmdsize;
|
|
|
|
mb = &pmb->u.mb;
|
|
|
|
ndlp = (struct lpfc_nodelist *) pmb->context2;
|
|
rxid = (uint16_t) ((unsigned long)(pmb->context1) & 0xffff);
|
|
oxid = (uint16_t) (((unsigned long)(pmb->context1) >> 16) & 0xffff);
|
|
pmb->context1 = NULL;
|
|
pmb->context2 = NULL;
|
|
|
|
if (mb->mbxStatus) {
|
|
mempool_free(pmb, phba->mbox_mem_pool);
|
|
return;
|
|
}
|
|
|
|
cmdsize = sizeof(struct RLS_RSP) + sizeof(uint32_t);
|
|
elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
|
|
lpfc_max_els_tries, ndlp,
|
|
ndlp->nlp_DID, ELS_CMD_ACC);
|
|
|
|
/* Decrement the ndlp reference count from previous mbox command */
|
|
lpfc_nlp_put(ndlp);
|
|
|
|
if (!elsiocb) {
|
|
mempool_free(pmb, phba->mbox_mem_pool);
|
|
return;
|
|
}
|
|
|
|
icmd = &elsiocb->iocb;
|
|
icmd->ulpContext = rxid;
|
|
icmd->unsli3.rcvsli3.ox_id = oxid;
|
|
|
|
pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
|
|
*((uint32_t *) (pcmd)) = ELS_CMD_ACC;
|
|
pcmd += sizeof(uint32_t); /* Skip past command */
|
|
rls_rsp = (struct RLS_RSP *)pcmd;
|
|
|
|
rls_rsp->linkFailureCnt = cpu_to_be32(mb->un.varRdLnk.linkFailureCnt);
|
|
rls_rsp->lossSyncCnt = cpu_to_be32(mb->un.varRdLnk.lossSyncCnt);
|
|
rls_rsp->lossSignalCnt = cpu_to_be32(mb->un.varRdLnk.lossSignalCnt);
|
|
rls_rsp->primSeqErrCnt = cpu_to_be32(mb->un.varRdLnk.primSeqErrCnt);
|
|
rls_rsp->invalidXmitWord = cpu_to_be32(mb->un.varRdLnk.invalidXmitWord);
|
|
rls_rsp->crcCnt = cpu_to_be32(mb->un.varRdLnk.crcCnt);
|
|
mempool_free(pmb, phba->mbox_mem_pool);
|
|
/* Xmit ELS RLS ACC response tag <ulpIoTag> */
|
|
lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS,
|
|
"2874 Xmit ELS RLS ACC response tag x%x xri x%x, "
|
|
"did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n",
|
|
elsiocb->iotag, elsiocb->iocb.ulpContext,
|
|
ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
|
|
ndlp->nlp_rpi);
|
|
elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
|
|
phba->fc_stat.elsXmitACC++;
|
|
if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == IOCB_ERROR)
|
|
lpfc_els_free_iocb(phba, elsiocb);
|
|
}
|
|
|
|
/**
|
|
* lpfc_els_rsp_rps_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @pmb: pointer to the driver internal queue element for mailbox command.
|
|
*
|
|
* This routine is the completion callback function for the MBX_READ_LNK_STAT
|
|
* mailbox command. This callback function is to actually send the Accept
|
|
* (ACC) response to a Read Port Status (RPS) unsolicited IOCB event. It
|
|
* collects the link statistics from the completion of the MBX_READ_LNK_STAT
|
|
* mailbox command, constructs the RPS response with the link statistics
|
|
* collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC
|
|
* response to the RPS.
|
|
*
|
|
* Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
|
|
* will be incremented by 1 for holding the ndlp and the reference to ndlp
|
|
* will be stored into the context1 field of the IOCB for the completion
|
|
* callback function to the RPS Accept Response ELS IOCB command.
|
|
*
|
|
**/
|
|
static void
|
|
lpfc_els_rsp_rps_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
|
|
{
|
|
MAILBOX_t *mb;
|
|
IOCB_t *icmd;
|
|
RPS_RSP *rps_rsp;
|
|
uint8_t *pcmd;
|
|
struct lpfc_iocbq *elsiocb;
|
|
struct lpfc_nodelist *ndlp;
|
|
uint16_t status;
|
|
uint16_t oxid;
|
|
uint16_t rxid;
|
|
uint32_t cmdsize;
|
|
|
|
mb = &pmb->u.mb;
|
|
|
|
ndlp = (struct lpfc_nodelist *) pmb->context2;
|
|
rxid = (uint16_t) ((unsigned long)(pmb->context1) & 0xffff);
|
|
oxid = (uint16_t) (((unsigned long)(pmb->context1) >> 16) & 0xffff);
|
|
pmb->context1 = NULL;
|
|
pmb->context2 = NULL;
|
|
|
|
if (mb->mbxStatus) {
|
|
mempool_free(pmb, phba->mbox_mem_pool);
|
|
return;
|
|
}
|
|
|
|
cmdsize = sizeof(RPS_RSP) + sizeof(uint32_t);
|
|
mempool_free(pmb, phba->mbox_mem_pool);
|
|
elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
|
|
lpfc_max_els_tries, ndlp,
|
|
ndlp->nlp_DID, ELS_CMD_ACC);
|
|
|
|
/* Decrement the ndlp reference count from previous mbox command */
|
|
lpfc_nlp_put(ndlp);
|
|
|
|
if (!elsiocb)
|
|
return;
|
|
|
|
icmd = &elsiocb->iocb;
|
|
icmd->ulpContext = rxid;
|
|
icmd->unsli3.rcvsli3.ox_id = oxid;
|
|
|
|
pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
|
|
*((uint32_t *) (pcmd)) = ELS_CMD_ACC;
|
|
pcmd += sizeof(uint32_t); /* Skip past command */
|
|
rps_rsp = (RPS_RSP *)pcmd;
|
|
|
|
if (phba->fc_topology != LPFC_TOPOLOGY_LOOP)
|
|
status = 0x10;
|
|
else
|
|
status = 0x8;
|
|
if (phba->pport->fc_flag & FC_FABRIC)
|
|
status |= 0x4;
|
|
|
|
rps_rsp->rsvd1 = 0;
|
|
rps_rsp->portStatus = cpu_to_be16(status);
|
|
rps_rsp->linkFailureCnt = cpu_to_be32(mb->un.varRdLnk.linkFailureCnt);
|
|
rps_rsp->lossSyncCnt = cpu_to_be32(mb->un.varRdLnk.lossSyncCnt);
|
|
rps_rsp->lossSignalCnt = cpu_to_be32(mb->un.varRdLnk.lossSignalCnt);
|
|
rps_rsp->primSeqErrCnt = cpu_to_be32(mb->un.varRdLnk.primSeqErrCnt);
|
|
rps_rsp->invalidXmitWord = cpu_to_be32(mb->un.varRdLnk.invalidXmitWord);
|
|
rps_rsp->crcCnt = cpu_to_be32(mb->un.varRdLnk.crcCnt);
|
|
/* Xmit ELS RPS ACC response tag <ulpIoTag> */
|
|
lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS,
|
|
"0118 Xmit ELS RPS ACC response tag x%x xri x%x, "
|
|
"did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n",
|
|
elsiocb->iotag, elsiocb->iocb.ulpContext,
|
|
ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
|
|
ndlp->nlp_rpi);
|
|
elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
|
|
phba->fc_stat.elsXmitACC++;
|
|
if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == IOCB_ERROR)
|
|
lpfc_els_free_iocb(phba, elsiocb);
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* lpfc_els_rcv_rls - Process an unsolicited rls iocb
|
|
* @vport: pointer to a host virtual N_Port data structure.
|
|
* @cmdiocb: pointer to lpfc command iocb data structure.
|
|
* @ndlp: pointer to a node-list data structure.
|
|
*
|
|
* This routine processes Read Port Status (RPL) IOCB received as an
|
|
* ELS unsolicited event. It first checks the remote port state. If the
|
|
* remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE
|
|
* state, it invokes the lpfc_els_rsl_reject() routine to send the reject
|
|
* response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command
|
|
* for reading the HBA link statistics. It is for the callback function,
|
|
* lpfc_els_rsp_rls_acc(), set to the MBX_READ_LNK_STAT mailbox command
|
|
* to actually sending out RPL Accept (ACC) response.
|
|
*
|
|
* Return codes
|
|
* 0 - Successfully processed rls iocb (currently always return 0)
|
|
**/
|
|
static int
|
|
lpfc_els_rcv_rls(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
|
|
struct lpfc_nodelist *ndlp)
|
|
{
|
|
struct lpfc_hba *phba = vport->phba;
|
|
LPFC_MBOXQ_t *mbox;
|
|
struct ls_rjt stat;
|
|
|
|
if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
|
|
(ndlp->nlp_state != NLP_STE_MAPPED_NODE))
|
|
/* reject the unsolicited RPS request and done with it */
|
|
goto reject_out;
|
|
|
|
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_ATOMIC);
|
|
if (mbox) {
|
|
lpfc_read_lnk_stat(phba, mbox);
|
|
mbox->context1 = (void *)((unsigned long)
|
|
((cmdiocb->iocb.unsli3.rcvsli3.ox_id << 16) |
|
|
cmdiocb->iocb.ulpContext)); /* rx_id */
|
|
mbox->context2 = lpfc_nlp_get(ndlp);
|
|
mbox->vport = vport;
|
|
mbox->mbox_cmpl = lpfc_els_rsp_rls_acc;
|
|
if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
|
|
!= MBX_NOT_FINISHED)
|
|
/* Mbox completion will send ELS Response */
|
|
return 0;
|
|
/* Decrement reference count used for the failed mbox
|
|
* command.
|
|
*/
|
|
lpfc_nlp_put(ndlp);
|
|
mempool_free(mbox, phba->mbox_mem_pool);
|
|
}
|
|
reject_out:
|
|
/* issue rejection response */
|
|
stat.un.b.lsRjtRsvd0 = 0;
|
|
stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
|
|
stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
|
|
stat.un.b.vendorUnique = 0;
|
|
lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_els_rcv_rtv - Process an unsolicited rtv iocb
|
|
* @vport: pointer to a host virtual N_Port data structure.
|
|
* @cmdiocb: pointer to lpfc command iocb data structure.
|
|
* @ndlp: pointer to a node-list data structure.
|
|
*
|
|
* This routine processes Read Timout Value (RTV) IOCB received as an
|
|
* ELS unsolicited event. It first checks the remote port state. If the
|
|
* remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE
|
|
* state, it invokes the lpfc_els_rsl_reject() routine to send the reject
|
|
* response. Otherwise, it sends the Accept(ACC) response to a Read Timeout
|
|
* Value (RTV) unsolicited IOCB event.
|
|
*
|
|
* Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
|
|
* will be incremented by 1 for holding the ndlp and the reference to ndlp
|
|
* will be stored into the context1 field of the IOCB for the completion
|
|
* callback function to the RPS Accept Response ELS IOCB command.
|
|
*
|
|
* Return codes
|
|
* 0 - Successfully processed rtv iocb (currently always return 0)
|
|
**/
|
|
static int
|
|
lpfc_els_rcv_rtv(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
|
|
struct lpfc_nodelist *ndlp)
|
|
{
|
|
struct lpfc_hba *phba = vport->phba;
|
|
struct ls_rjt stat;
|
|
struct RTV_RSP *rtv_rsp;
|
|
uint8_t *pcmd;
|
|
struct lpfc_iocbq *elsiocb;
|
|
uint32_t cmdsize;
|
|
|
|
|
|
if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
|
|
(ndlp->nlp_state != NLP_STE_MAPPED_NODE))
|
|
/* reject the unsolicited RPS request and done with it */
|
|
goto reject_out;
|
|
|
|
cmdsize = sizeof(struct RTV_RSP) + sizeof(uint32_t);
|
|
elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
|
|
lpfc_max_els_tries, ndlp,
|
|
ndlp->nlp_DID, ELS_CMD_ACC);
|
|
|
|
if (!elsiocb)
|
|
return 1;
|
|
|
|
pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
|
|
*((uint32_t *) (pcmd)) = ELS_CMD_ACC;
|
|
pcmd += sizeof(uint32_t); /* Skip past command */
|
|
|
|
/* use the command's xri in the response */
|
|
elsiocb->iocb.ulpContext = cmdiocb->iocb.ulpContext; /* Xri / rx_id */
|
|
elsiocb->iocb.unsli3.rcvsli3.ox_id = cmdiocb->iocb.unsli3.rcvsli3.ox_id;
|
|
|
|
rtv_rsp = (struct RTV_RSP *)pcmd;
|
|
|
|
/* populate RTV payload */
|
|
rtv_rsp->ratov = cpu_to_be32(phba->fc_ratov * 1000); /* report msecs */
|
|
rtv_rsp->edtov = cpu_to_be32(phba->fc_edtov);
|
|
bf_set(qtov_edtovres, rtv_rsp, phba->fc_edtovResol ? 1 : 0);
|
|
bf_set(qtov_rttov, rtv_rsp, 0); /* Field is for FC ONLY */
|
|
rtv_rsp->qtov = cpu_to_be32(rtv_rsp->qtov);
|
|
|
|
/* Xmit ELS RLS ACC response tag <ulpIoTag> */
|
|
lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS,
|
|
"2875 Xmit ELS RTV ACC response tag x%x xri x%x, "
|
|
"did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x, "
|
|
"Data: x%x x%x x%x\n",
|
|
elsiocb->iotag, elsiocb->iocb.ulpContext,
|
|
ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
|
|
ndlp->nlp_rpi,
|
|
rtv_rsp->ratov, rtv_rsp->edtov, rtv_rsp->qtov);
|
|
elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
|
|
phba->fc_stat.elsXmitACC++;
|
|
if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == IOCB_ERROR)
|
|
lpfc_els_free_iocb(phba, elsiocb);
|
|
return 0;
|
|
|
|
reject_out:
|
|
/* issue rejection response */
|
|
stat.un.b.lsRjtRsvd0 = 0;
|
|
stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
|
|
stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
|
|
stat.un.b.vendorUnique = 0;
|
|
lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
|
|
return 0;
|
|
}
|
|
|
|
/* lpfc_els_rcv_rps - Process an unsolicited rps iocb
|
|
* @vport: pointer to a host virtual N_Port data structure.
|
|
* @cmdiocb: pointer to lpfc command iocb data structure.
|
|
* @ndlp: pointer to a node-list data structure.
|
|
*
|
|
* This routine processes Read Port Status (RPS) IOCB received as an
|
|
* ELS unsolicited event. It first checks the remote port state. If the
|
|
* remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE
|
|
* state, it invokes the lpfc_els_rsp_reject() routine to send the reject
|
|
* response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command
|
|
* for reading the HBA link statistics. It is for the callback function,
|
|
* lpfc_els_rsp_rps_acc(), set to the MBX_READ_LNK_STAT mailbox command
|
|
* to actually sending out RPS Accept (ACC) response.
|
|
*
|
|
* Return codes
|
|
* 0 - Successfully processed rps iocb (currently always return 0)
|
|
**/
|
|
static int
|
|
lpfc_els_rcv_rps(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
|
|
struct lpfc_nodelist *ndlp)
|
|
{
|
|
struct lpfc_hba *phba = vport->phba;
|
|
uint32_t *lp;
|
|
uint8_t flag;
|
|
LPFC_MBOXQ_t *mbox;
|
|
struct lpfc_dmabuf *pcmd;
|
|
RPS *rps;
|
|
struct ls_rjt stat;
|
|
|
|
if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
|
|
(ndlp->nlp_state != NLP_STE_MAPPED_NODE))
|
|
/* reject the unsolicited RPS request and done with it */
|
|
goto reject_out;
|
|
|
|
pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
|
|
lp = (uint32_t *) pcmd->virt;
|
|
flag = (be32_to_cpu(*lp++) & 0xf);
|
|
rps = (RPS *) lp;
|
|
|
|
if ((flag == 0) ||
|
|
((flag == 1) && (be32_to_cpu(rps->un.portNum) == 0)) ||
|
|
((flag == 2) && (memcmp(&rps->un.portName, &vport->fc_portname,
|
|
sizeof(struct lpfc_name)) == 0))) {
|
|
|
|
printk("Fix me....\n");
|
|
dump_stack();
|
|
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_ATOMIC);
|
|
if (mbox) {
|
|
lpfc_read_lnk_stat(phba, mbox);
|
|
mbox->context1 = (void *)((unsigned long)
|
|
((cmdiocb->iocb.unsli3.rcvsli3.ox_id << 16) |
|
|
cmdiocb->iocb.ulpContext)); /* rx_id */
|
|
mbox->context2 = lpfc_nlp_get(ndlp);
|
|
mbox->vport = vport;
|
|
mbox->mbox_cmpl = lpfc_els_rsp_rps_acc;
|
|
if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
|
|
!= MBX_NOT_FINISHED)
|
|
/* Mbox completion will send ELS Response */
|
|
return 0;
|
|
/* Decrement reference count used for the failed mbox
|
|
* command.
|
|
*/
|
|
lpfc_nlp_put(ndlp);
|
|
mempool_free(mbox, phba->mbox_mem_pool);
|
|
}
|
|
}
|
|
|
|
reject_out:
|
|
/* issue rejection response */
|
|
stat.un.b.lsRjtRsvd0 = 0;
|
|
stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
|
|
stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
|
|
stat.un.b.vendorUnique = 0;
|
|
lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
|
|
return 0;
|
|
}
|
|
|
|
/* lpfc_issue_els_rrq - Process an unsolicited rps iocb
|
|
* @vport: pointer to a host virtual N_Port data structure.
|
|
* @ndlp: pointer to a node-list data structure.
|
|
* @did: DID of the target.
|
|
* @rrq: Pointer to the rrq struct.
|
|
*
|
|
* Build a ELS RRQ command and send it to the target. If the issue_iocb is
|
|
* Successful the the completion handler will clear the RRQ.
|
|
*
|
|
* Return codes
|
|
* 0 - Successfully sent rrq els iocb.
|
|
* 1 - Failed to send rrq els iocb.
|
|
**/
|
|
static int
|
|
lpfc_issue_els_rrq(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
|
|
uint32_t did, struct lpfc_node_rrq *rrq)
|
|
{
|
|
struct lpfc_hba *phba = vport->phba;
|
|
struct RRQ *els_rrq;
|
|
struct lpfc_iocbq *elsiocb;
|
|
uint8_t *pcmd;
|
|
uint16_t cmdsize;
|
|
int ret;
|
|
|
|
|
|
if (ndlp != rrq->ndlp)
|
|
ndlp = rrq->ndlp;
|
|
if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
|
|
return 1;
|
|
|
|
/* If ndlp is not NULL, we will bump the reference count on it */
|
|
cmdsize = (sizeof(uint32_t) + sizeof(struct RRQ));
|
|
elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, did,
|
|
ELS_CMD_RRQ);
|
|
if (!elsiocb)
|
|
return 1;
|
|
|
|
pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
|
|
|
|
/* For RRQ request, remainder of payload is Exchange IDs */
|
|
*((uint32_t *) (pcmd)) = ELS_CMD_RRQ;
|
|
pcmd += sizeof(uint32_t);
|
|
els_rrq = (struct RRQ *) pcmd;
|
|
|
|
bf_set(rrq_oxid, els_rrq, phba->sli4_hba.xri_ids[rrq->xritag]);
|
|
bf_set(rrq_rxid, els_rrq, rrq->rxid);
|
|
bf_set(rrq_did, els_rrq, vport->fc_myDID);
|
|
els_rrq->rrq = cpu_to_be32(els_rrq->rrq);
|
|
els_rrq->rrq_exchg = cpu_to_be32(els_rrq->rrq_exchg);
|
|
|
|
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
|
|
"Issue RRQ: did:x%x",
|
|
did, rrq->xritag, rrq->rxid);
|
|
elsiocb->context_un.rrq = rrq;
|
|
elsiocb->iocb_cmpl = lpfc_cmpl_els_rrq;
|
|
ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
|
|
|
|
if (ret == IOCB_ERROR) {
|
|
lpfc_els_free_iocb(phba, elsiocb);
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_send_rrq - Sends ELS RRQ if needed.
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @rrq: pointer to the active rrq.
|
|
*
|
|
* This routine will call the lpfc_issue_els_rrq if the rrq is
|
|
* still active for the xri. If this function returns a failure then
|
|
* the caller needs to clean up the RRQ by calling lpfc_clr_active_rrq.
|
|
*
|
|
* Returns 0 Success.
|
|
* 1 Failure.
|
|
**/
|
|
int
|
|
lpfc_send_rrq(struct lpfc_hba *phba, struct lpfc_node_rrq *rrq)
|
|
{
|
|
struct lpfc_nodelist *ndlp = lpfc_findnode_did(rrq->vport,
|
|
rrq->nlp_DID);
|
|
if (lpfc_test_rrq_active(phba, ndlp, rrq->xritag))
|
|
return lpfc_issue_els_rrq(rrq->vport, ndlp,
|
|
rrq->nlp_DID, rrq);
|
|
else
|
|
return 1;
|
|
}
|
|
|
|
/**
|
|
* lpfc_els_rsp_rpl_acc - Issue an accept rpl els command
|
|
* @vport: pointer to a host virtual N_Port data structure.
|
|
* @cmdsize: size of the ELS command.
|
|
* @oldiocb: pointer to the original lpfc command iocb data structure.
|
|
* @ndlp: pointer to a node-list data structure.
|
|
*
|
|
* This routine issuees an Accept (ACC) Read Port List (RPL) ELS command.
|
|
* It is to be called by the lpfc_els_rcv_rpl() routine to accept the RPL.
|
|
*
|
|
* Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
|
|
* will be incremented by 1 for holding the ndlp and the reference to ndlp
|
|
* will be stored into the context1 field of the IOCB for the completion
|
|
* callback function to the RPL Accept Response ELS command.
|
|
*
|
|
* Return code
|
|
* 0 - Successfully issued ACC RPL ELS command
|
|
* 1 - Failed to issue ACC RPL ELS command
|
|
**/
|
|
static int
|
|
lpfc_els_rsp_rpl_acc(struct lpfc_vport *vport, uint16_t cmdsize,
|
|
struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp)
|
|
{
|
|
struct lpfc_hba *phba = vport->phba;
|
|
IOCB_t *icmd, *oldcmd;
|
|
RPL_RSP rpl_rsp;
|
|
struct lpfc_iocbq *elsiocb;
|
|
uint8_t *pcmd;
|
|
|
|
elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
|
|
ndlp->nlp_DID, ELS_CMD_ACC);
|
|
|
|
if (!elsiocb)
|
|
return 1;
|
|
|
|
icmd = &elsiocb->iocb;
|
|
oldcmd = &oldiocb->iocb;
|
|
icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
|
|
icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
|
|
|
|
pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
|
|
*((uint32_t *) (pcmd)) = ELS_CMD_ACC;
|
|
pcmd += sizeof(uint16_t);
|
|
*((uint16_t *)(pcmd)) = be16_to_cpu(cmdsize);
|
|
pcmd += sizeof(uint16_t);
|
|
|
|
/* Setup the RPL ACC payload */
|
|
rpl_rsp.listLen = be32_to_cpu(1);
|
|
rpl_rsp.index = 0;
|
|
rpl_rsp.port_num_blk.portNum = 0;
|
|
rpl_rsp.port_num_blk.portID = be32_to_cpu(vport->fc_myDID);
|
|
memcpy(&rpl_rsp.port_num_blk.portName, &vport->fc_portname,
|
|
sizeof(struct lpfc_name));
|
|
memcpy(pcmd, &rpl_rsp, cmdsize - sizeof(uint32_t));
|
|
/* Xmit ELS RPL ACC response tag <ulpIoTag> */
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
|
|
"0120 Xmit ELS RPL ACC response tag x%x "
|
|
"xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, "
|
|
"rpi x%x\n",
|
|
elsiocb->iotag, elsiocb->iocb.ulpContext,
|
|
ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
|
|
ndlp->nlp_rpi);
|
|
elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
|
|
phba->fc_stat.elsXmitACC++;
|
|
if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) ==
|
|
IOCB_ERROR) {
|
|
lpfc_els_free_iocb(phba, elsiocb);
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_els_rcv_rpl - Process an unsolicited rpl iocb
|
|
* @vport: pointer to a host virtual N_Port data structure.
|
|
* @cmdiocb: pointer to lpfc command iocb data structure.
|
|
* @ndlp: pointer to a node-list data structure.
|
|
*
|
|
* This routine processes Read Port List (RPL) IOCB received as an ELS
|
|
* unsolicited event. It first checks the remote port state. If the remote
|
|
* port is not in NLP_STE_UNMAPPED_NODE and NLP_STE_MAPPED_NODE states, it
|
|
* invokes the lpfc_els_rsp_reject() routine to send reject response.
|
|
* Otherwise, this routine then invokes the lpfc_els_rsp_rpl_acc() routine
|
|
* to accept the RPL.
|
|
*
|
|
* Return code
|
|
* 0 - Successfully processed rpl iocb (currently always return 0)
|
|
**/
|
|
static int
|
|
lpfc_els_rcv_rpl(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
|
|
struct lpfc_nodelist *ndlp)
|
|
{
|
|
struct lpfc_dmabuf *pcmd;
|
|
uint32_t *lp;
|
|
uint32_t maxsize;
|
|
uint16_t cmdsize;
|
|
RPL *rpl;
|
|
struct ls_rjt stat;
|
|
|
|
if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
|
|
(ndlp->nlp_state != NLP_STE_MAPPED_NODE)) {
|
|
/* issue rejection response */
|
|
stat.un.b.lsRjtRsvd0 = 0;
|
|
stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
|
|
stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
|
|
stat.un.b.vendorUnique = 0;
|
|
lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
|
|
NULL);
|
|
/* rejected the unsolicited RPL request and done with it */
|
|
return 0;
|
|
}
|
|
|
|
pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
|
|
lp = (uint32_t *) pcmd->virt;
|
|
rpl = (RPL *) (lp + 1);
|
|
maxsize = be32_to_cpu(rpl->maxsize);
|
|
|
|
/* We support only one port */
|
|
if ((rpl->index == 0) &&
|
|
((maxsize == 0) ||
|
|
((maxsize * sizeof(uint32_t)) >= sizeof(RPL_RSP)))) {
|
|
cmdsize = sizeof(uint32_t) + sizeof(RPL_RSP);
|
|
} else {
|
|
cmdsize = sizeof(uint32_t) + maxsize * sizeof(uint32_t);
|
|
}
|
|
lpfc_els_rsp_rpl_acc(vport, cmdsize, cmdiocb, ndlp);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_els_rcv_farp - Process an unsolicited farp request els command
|
|
* @vport: pointer to a virtual N_Port data structure.
|
|
* @cmdiocb: pointer to lpfc command iocb data structure.
|
|
* @ndlp: pointer to a node-list data structure.
|
|
*
|
|
* This routine processes Fibre Channel Address Resolution Protocol
|
|
* (FARP) Request IOCB received as an ELS unsolicited event. Currently,
|
|
* the lpfc driver only supports matching on WWPN or WWNN for FARP. As such,
|
|
* FARP_MATCH_PORT flag and FARP_MATCH_NODE flag are checked against the
|
|
* Match Flag in the FARP request IOCB: if FARP_MATCH_PORT flag is set, the
|
|
* remote PortName is compared against the FC PortName stored in the @vport
|
|
* data structure; if FARP_MATCH_NODE flag is set, the remote NodeName is
|
|
* compared against the FC NodeName stored in the @vport data structure.
|
|
* If any of these matches and the FARP_REQUEST_FARPR flag is set in the
|
|
* FARP request IOCB Response Flag, the lpfc_issue_els_farpr() routine is
|
|
* invoked to send out FARP Response to the remote node. Before sending the
|
|
* FARP Response, however, the FARP_REQUEST_PLOGI flag is check in the FARP
|
|
* request IOCB Response Flag and, if it is set, the lpfc_issue_els_plogi()
|
|
* routine is invoked to log into the remote port first.
|
|
*
|
|
* Return code
|
|
* 0 - Either the FARP Match Mode not supported or successfully processed
|
|
**/
|
|
static int
|
|
lpfc_els_rcv_farp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
|
|
struct lpfc_nodelist *ndlp)
|
|
{
|
|
struct lpfc_dmabuf *pcmd;
|
|
uint32_t *lp;
|
|
IOCB_t *icmd;
|
|
FARP *fp;
|
|
uint32_t cmd, cnt, did;
|
|
|
|
icmd = &cmdiocb->iocb;
|
|
did = icmd->un.elsreq64.remoteID;
|
|
pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
|
|
lp = (uint32_t *) pcmd->virt;
|
|
|
|
cmd = *lp++;
|
|
fp = (FARP *) lp;
|
|
/* FARP-REQ received from DID <did> */
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
|
|
"0601 FARP-REQ received from DID x%x\n", did);
|
|
/* We will only support match on WWPN or WWNN */
|
|
if (fp->Mflags & ~(FARP_MATCH_NODE | FARP_MATCH_PORT)) {
|
|
return 0;
|
|
}
|
|
|
|
cnt = 0;
|
|
/* If this FARP command is searching for my portname */
|
|
if (fp->Mflags & FARP_MATCH_PORT) {
|
|
if (memcmp(&fp->RportName, &vport->fc_portname,
|
|
sizeof(struct lpfc_name)) == 0)
|
|
cnt = 1;
|
|
}
|
|
|
|
/* If this FARP command is searching for my nodename */
|
|
if (fp->Mflags & FARP_MATCH_NODE) {
|
|
if (memcmp(&fp->RnodeName, &vport->fc_nodename,
|
|
sizeof(struct lpfc_name)) == 0)
|
|
cnt = 1;
|
|
}
|
|
|
|
if (cnt) {
|
|
if ((ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) ||
|
|
(ndlp->nlp_state == NLP_STE_MAPPED_NODE)) {
|
|
/* Log back into the node before sending the FARP. */
|
|
if (fp->Rflags & FARP_REQUEST_PLOGI) {
|
|
ndlp->nlp_prev_state = ndlp->nlp_state;
|
|
lpfc_nlp_set_state(vport, ndlp,
|
|
NLP_STE_PLOGI_ISSUE);
|
|
lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
|
|
}
|
|
|
|
/* Send a FARP response to that node */
|
|
if (fp->Rflags & FARP_REQUEST_FARPR)
|
|
lpfc_issue_els_farpr(vport, did, 0);
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_els_rcv_farpr - Process an unsolicited farp response iocb
|
|
* @vport: pointer to a host virtual N_Port data structure.
|
|
* @cmdiocb: pointer to lpfc command iocb data structure.
|
|
* @ndlp: pointer to a node-list data structure.
|
|
*
|
|
* This routine processes Fibre Channel Address Resolution Protocol
|
|
* Response (FARPR) IOCB received as an ELS unsolicited event. It simply
|
|
* invokes the lpfc_els_rsp_acc() routine to the remote node to accept
|
|
* the FARP response request.
|
|
*
|
|
* Return code
|
|
* 0 - Successfully processed FARPR IOCB (currently always return 0)
|
|
**/
|
|
static int
|
|
lpfc_els_rcv_farpr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
|
|
struct lpfc_nodelist *ndlp)
|
|
{
|
|
struct lpfc_dmabuf *pcmd;
|
|
uint32_t *lp;
|
|
IOCB_t *icmd;
|
|
uint32_t cmd, did;
|
|
|
|
icmd = &cmdiocb->iocb;
|
|
did = icmd->un.elsreq64.remoteID;
|
|
pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
|
|
lp = (uint32_t *) pcmd->virt;
|
|
|
|
cmd = *lp++;
|
|
/* FARP-RSP received from DID <did> */
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
|
|
"0600 FARP-RSP received from DID x%x\n", did);
|
|
/* ACCEPT the Farp resp request */
|
|
lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_els_rcv_fan - Process an unsolicited fan iocb command
|
|
* @vport: pointer to a host virtual N_Port data structure.
|
|
* @cmdiocb: pointer to lpfc command iocb data structure.
|
|
* @fan_ndlp: pointer to a node-list data structure.
|
|
*
|
|
* This routine processes a Fabric Address Notification (FAN) IOCB
|
|
* command received as an ELS unsolicited event. The FAN ELS command will
|
|
* only be processed on a physical port (i.e., the @vport represents the
|
|
* physical port). The fabric NodeName and PortName from the FAN IOCB are
|
|
* compared against those in the phba data structure. If any of those is
|
|
* different, the lpfc_initial_flogi() routine is invoked to initialize
|
|
* Fabric Login (FLOGI) to the fabric to start the discover over. Otherwise,
|
|
* if both of those are identical, the lpfc_issue_fabric_reglogin() routine
|
|
* is invoked to register login to the fabric.
|
|
*
|
|
* Return code
|
|
* 0 - Successfully processed fan iocb (currently always return 0).
|
|
**/
|
|
static int
|
|
lpfc_els_rcv_fan(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
|
|
struct lpfc_nodelist *fan_ndlp)
|
|
{
|
|
struct lpfc_hba *phba = vport->phba;
|
|
uint32_t *lp;
|
|
FAN *fp;
|
|
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, "0265 FAN received\n");
|
|
lp = (uint32_t *)((struct lpfc_dmabuf *)cmdiocb->context2)->virt;
|
|
fp = (FAN *) ++lp;
|
|
/* FAN received; Fan does not have a reply sequence */
|
|
if ((vport == phba->pport) &&
|
|
(vport->port_state == LPFC_LOCAL_CFG_LINK)) {
|
|
if ((memcmp(&phba->fc_fabparam.nodeName, &fp->FnodeName,
|
|
sizeof(struct lpfc_name))) ||
|
|
(memcmp(&phba->fc_fabparam.portName, &fp->FportName,
|
|
sizeof(struct lpfc_name)))) {
|
|
/* This port has switched fabrics. FLOGI is required */
|
|
lpfc_issue_init_vfi(vport);
|
|
} else {
|
|
/* FAN verified - skip FLOGI */
|
|
vport->fc_myDID = vport->fc_prevDID;
|
|
if (phba->sli_rev < LPFC_SLI_REV4)
|
|
lpfc_issue_fabric_reglogin(vport);
|
|
else {
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
|
|
"3138 Need register VFI: (x%x/%x)\n",
|
|
vport->fc_prevDID, vport->fc_myDID);
|
|
lpfc_issue_reg_vfi(vport);
|
|
}
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_els_timeout - Handler funciton to the els timer
|
|
* @ptr: holder for the timer function associated data.
|
|
*
|
|
* This routine is invoked by the ELS timer after timeout. It posts the ELS
|
|
* timer timeout event by setting the WORKER_ELS_TMO bit to the work port
|
|
* event bitmap and then invokes the lpfc_worker_wake_up() routine to wake
|
|
* up the worker thread. It is for the worker thread to invoke the routine
|
|
* lpfc_els_timeout_handler() to work on the posted event WORKER_ELS_TMO.
|
|
**/
|
|
void
|
|
lpfc_els_timeout(unsigned long ptr)
|
|
{
|
|
struct lpfc_vport *vport = (struct lpfc_vport *) ptr;
|
|
struct lpfc_hba *phba = vport->phba;
|
|
uint32_t tmo_posted;
|
|
unsigned long iflag;
|
|
|
|
spin_lock_irqsave(&vport->work_port_lock, iflag);
|
|
tmo_posted = vport->work_port_events & WORKER_ELS_TMO;
|
|
if ((!tmo_posted) && (!(vport->load_flag & FC_UNLOADING)))
|
|
vport->work_port_events |= WORKER_ELS_TMO;
|
|
spin_unlock_irqrestore(&vport->work_port_lock, iflag);
|
|
|
|
if ((!tmo_posted) && (!(vport->load_flag & FC_UNLOADING)))
|
|
lpfc_worker_wake_up(phba);
|
|
return;
|
|
}
|
|
|
|
|
|
/**
|
|
* lpfc_els_timeout_handler - Process an els timeout event
|
|
* @vport: pointer to a virtual N_Port data structure.
|
|
*
|
|
* This routine is the actual handler function that processes an ELS timeout
|
|
* event. It walks the ELS ring to get and abort all the IOCBs (except the
|
|
* ABORT/CLOSE/FARP/FARPR/FDISC), which are associated with the @vport by
|
|
* invoking the lpfc_sli_issue_abort_iotag() routine.
|
|
**/
|
|
void
|
|
lpfc_els_timeout_handler(struct lpfc_vport *vport)
|
|
{
|
|
struct lpfc_hba *phba = vport->phba;
|
|
struct lpfc_sli_ring *pring;
|
|
struct lpfc_iocbq *tmp_iocb, *piocb;
|
|
IOCB_t *cmd = NULL;
|
|
struct lpfc_dmabuf *pcmd;
|
|
uint32_t els_command = 0;
|
|
uint32_t timeout;
|
|
uint32_t remote_ID = 0xffffffff;
|
|
LIST_HEAD(abort_list);
|
|
|
|
|
|
timeout = (uint32_t)(phba->fc_ratov << 1);
|
|
|
|
pring = &phba->sli.ring[LPFC_ELS_RING];
|
|
if ((phba->pport->load_flag & FC_UNLOADING))
|
|
return;
|
|
spin_lock_irq(&phba->hbalock);
|
|
if (phba->sli_rev == LPFC_SLI_REV4)
|
|
spin_lock(&pring->ring_lock);
|
|
|
|
if ((phba->pport->load_flag & FC_UNLOADING)) {
|
|
if (phba->sli_rev == LPFC_SLI_REV4)
|
|
spin_unlock(&pring->ring_lock);
|
|
spin_unlock_irq(&phba->hbalock);
|
|
return;
|
|
}
|
|
|
|
list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) {
|
|
cmd = &piocb->iocb;
|
|
|
|
if ((piocb->iocb_flag & LPFC_IO_LIBDFC) != 0 ||
|
|
piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN ||
|
|
piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
|
|
continue;
|
|
|
|
if (piocb->vport != vport)
|
|
continue;
|
|
|
|
pcmd = (struct lpfc_dmabuf *) piocb->context2;
|
|
if (pcmd)
|
|
els_command = *(uint32_t *) (pcmd->virt);
|
|
|
|
if (els_command == ELS_CMD_FARP ||
|
|
els_command == ELS_CMD_FARPR ||
|
|
els_command == ELS_CMD_FDISC)
|
|
continue;
|
|
|
|
if (piocb->drvrTimeout > 0) {
|
|
if (piocb->drvrTimeout >= timeout)
|
|
piocb->drvrTimeout -= timeout;
|
|
else
|
|
piocb->drvrTimeout = 0;
|
|
continue;
|
|
}
|
|
|
|
remote_ID = 0xffffffff;
|
|
if (cmd->ulpCommand != CMD_GEN_REQUEST64_CR)
|
|
remote_ID = cmd->un.elsreq64.remoteID;
|
|
else {
|
|
struct lpfc_nodelist *ndlp;
|
|
ndlp = __lpfc_findnode_rpi(vport, cmd->ulpContext);
|
|
if (ndlp && NLP_CHK_NODE_ACT(ndlp))
|
|
remote_ID = ndlp->nlp_DID;
|
|
}
|
|
list_add_tail(&piocb->dlist, &abort_list);
|
|
}
|
|
if (phba->sli_rev == LPFC_SLI_REV4)
|
|
spin_unlock(&pring->ring_lock);
|
|
spin_unlock_irq(&phba->hbalock);
|
|
|
|
list_for_each_entry_safe(piocb, tmp_iocb, &abort_list, dlist) {
|
|
cmd = &piocb->iocb;
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
|
|
"0127 ELS timeout Data: x%x x%x x%x "
|
|
"x%x\n", els_command,
|
|
remote_ID, cmd->ulpCommand, cmd->ulpIoTag);
|
|
spin_lock_irq(&phba->hbalock);
|
|
list_del_init(&piocb->dlist);
|
|
lpfc_sli_issue_abort_iotag(phba, pring, piocb);
|
|
spin_unlock_irq(&phba->hbalock);
|
|
}
|
|
|
|
if (!list_empty(&phba->sli.ring[LPFC_ELS_RING].txcmplq))
|
|
if (!(phba->pport->load_flag & FC_UNLOADING))
|
|
mod_timer(&vport->els_tmofunc,
|
|
jiffies + msecs_to_jiffies(1000 * timeout));
|
|
}
|
|
|
|
/**
|
|
* lpfc_els_flush_cmd - Clean up the outstanding els commands to a vport
|
|
* @vport: pointer to a host virtual N_Port data structure.
|
|
*
|
|
* This routine is used to clean up all the outstanding ELS commands on a
|
|
* @vport. It first aborts the @vport by invoking lpfc_fabric_abort_vport()
|
|
* routine. After that, it walks the ELS transmit queue to remove all the
|
|
* IOCBs with the @vport other than the QUE_RING and ABORT/CLOSE IOCBs. For
|
|
* the IOCBs with a non-NULL completion callback function, the callback
|
|
* function will be invoked with the status set to IOSTAT_LOCAL_REJECT and
|
|
* un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs with a NULL completion
|
|
* callback function, the IOCB will simply be released. Finally, it walks
|
|
* the ELS transmit completion queue to issue an abort IOCB to any transmit
|
|
* completion queue IOCB that is associated with the @vport and is not
|
|
* an IOCB from libdfc (i.e., the management plane IOCBs that are not
|
|
* part of the discovery state machine) out to HBA by invoking the
|
|
* lpfc_sli_issue_abort_iotag() routine. Note that this function issues the
|
|
* abort IOCB to any transmit completion queueed IOCB, it does not guarantee
|
|
* the IOCBs are aborted when this function returns.
|
|
**/
|
|
void
|
|
lpfc_els_flush_cmd(struct lpfc_vport *vport)
|
|
{
|
|
LIST_HEAD(abort_list);
|
|
struct lpfc_hba *phba = vport->phba;
|
|
struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
|
|
struct lpfc_iocbq *tmp_iocb, *piocb;
|
|
IOCB_t *cmd = NULL;
|
|
|
|
lpfc_fabric_abort_vport(vport);
|
|
/*
|
|
* For SLI3, only the hbalock is required. But SLI4 needs to coordinate
|
|
* with the ring insert operation. Because lpfc_sli_issue_abort_iotag
|
|
* ultimately grabs the ring_lock, the driver must splice the list into
|
|
* a working list and release the locks before calling the abort.
|
|
*/
|
|
spin_lock_irq(&phba->hbalock);
|
|
if (phba->sli_rev == LPFC_SLI_REV4)
|
|
spin_lock(&pring->ring_lock);
|
|
|
|
list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) {
|
|
if (piocb->iocb_flag & LPFC_IO_LIBDFC)
|
|
continue;
|
|
|
|
if (piocb->vport != vport)
|
|
continue;
|
|
list_add_tail(&piocb->dlist, &abort_list);
|
|
}
|
|
if (phba->sli_rev == LPFC_SLI_REV4)
|
|
spin_unlock(&pring->ring_lock);
|
|
spin_unlock_irq(&phba->hbalock);
|
|
/* Abort each iocb on the aborted list and remove the dlist links. */
|
|
list_for_each_entry_safe(piocb, tmp_iocb, &abort_list, dlist) {
|
|
spin_lock_irq(&phba->hbalock);
|
|
list_del_init(&piocb->dlist);
|
|
lpfc_sli_issue_abort_iotag(phba, pring, piocb);
|
|
spin_unlock_irq(&phba->hbalock);
|
|
}
|
|
if (!list_empty(&abort_list))
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
|
|
"3387 abort list for txq not empty\n");
|
|
INIT_LIST_HEAD(&abort_list);
|
|
|
|
spin_lock_irq(&phba->hbalock);
|
|
if (phba->sli_rev == LPFC_SLI_REV4)
|
|
spin_lock(&pring->ring_lock);
|
|
|
|
list_for_each_entry_safe(piocb, tmp_iocb, &pring->txq, list) {
|
|
cmd = &piocb->iocb;
|
|
|
|
if (piocb->iocb_flag & LPFC_IO_LIBDFC) {
|
|
continue;
|
|
}
|
|
|
|
/* Do not flush out the QUE_RING and ABORT/CLOSE iocbs */
|
|
if (cmd->ulpCommand == CMD_QUE_RING_BUF_CN ||
|
|
cmd->ulpCommand == CMD_QUE_RING_BUF64_CN ||
|
|
cmd->ulpCommand == CMD_CLOSE_XRI_CN ||
|
|
cmd->ulpCommand == CMD_ABORT_XRI_CN)
|
|
continue;
|
|
|
|
if (piocb->vport != vport)
|
|
continue;
|
|
|
|
list_del_init(&piocb->list);
|
|
list_add_tail(&piocb->list, &abort_list);
|
|
}
|
|
if (phba->sli_rev == LPFC_SLI_REV4)
|
|
spin_unlock(&pring->ring_lock);
|
|
spin_unlock_irq(&phba->hbalock);
|
|
|
|
/* Cancell all the IOCBs from the completions list */
|
|
lpfc_sli_cancel_iocbs(phba, &abort_list,
|
|
IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
|
|
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* lpfc_els_flush_all_cmd - Clean up all the outstanding els commands to a HBA
|
|
* @phba: pointer to lpfc hba data structure.
|
|
*
|
|
* This routine is used to clean up all the outstanding ELS commands on a
|
|
* @phba. It first aborts the @phba by invoking the lpfc_fabric_abort_hba()
|
|
* routine. After that, it walks the ELS transmit queue to remove all the
|
|
* IOCBs to the @phba other than the QUE_RING and ABORT/CLOSE IOCBs. For
|
|
* the IOCBs with the completion callback function associated, the callback
|
|
* function will be invoked with the status set to IOSTAT_LOCAL_REJECT and
|
|
* un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs without the completion
|
|
* callback function associated, the IOCB will simply be released. Finally,
|
|
* it walks the ELS transmit completion queue to issue an abort IOCB to any
|
|
* transmit completion queue IOCB that is not an IOCB from libdfc (i.e., the
|
|
* management plane IOCBs that are not part of the discovery state machine)
|
|
* out to HBA by invoking the lpfc_sli_issue_abort_iotag() routine.
|
|
**/
|
|
void
|
|
lpfc_els_flush_all_cmd(struct lpfc_hba *phba)
|
|
{
|
|
struct lpfc_vport *vport;
|
|
list_for_each_entry(vport, &phba->port_list, listentry)
|
|
lpfc_els_flush_cmd(vport);
|
|
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* lpfc_send_els_failure_event - Posts an ELS command failure event
|
|
* @phba: Pointer to hba context object.
|
|
* @cmdiocbp: Pointer to command iocb which reported error.
|
|
* @rspiocbp: Pointer to response iocb which reported error.
|
|
*
|
|
* This function sends an event when there is an ELS command
|
|
* failure.
|
|
**/
|
|
void
|
|
lpfc_send_els_failure_event(struct lpfc_hba *phba,
|
|
struct lpfc_iocbq *cmdiocbp,
|
|
struct lpfc_iocbq *rspiocbp)
|
|
{
|
|
struct lpfc_vport *vport = cmdiocbp->vport;
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
struct lpfc_lsrjt_event lsrjt_event;
|
|
struct lpfc_fabric_event_header fabric_event;
|
|
struct ls_rjt stat;
|
|
struct lpfc_nodelist *ndlp;
|
|
uint32_t *pcmd;
|
|
|
|
ndlp = cmdiocbp->context1;
|
|
if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
|
|
return;
|
|
|
|
if (rspiocbp->iocb.ulpStatus == IOSTAT_LS_RJT) {
|
|
lsrjt_event.header.event_type = FC_REG_ELS_EVENT;
|
|
lsrjt_event.header.subcategory = LPFC_EVENT_LSRJT_RCV;
|
|
memcpy(lsrjt_event.header.wwpn, &ndlp->nlp_portname,
|
|
sizeof(struct lpfc_name));
|
|
memcpy(lsrjt_event.header.wwnn, &ndlp->nlp_nodename,
|
|
sizeof(struct lpfc_name));
|
|
pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
|
|
cmdiocbp->context2)->virt);
|
|
lsrjt_event.command = (pcmd != NULL) ? *pcmd : 0;
|
|
stat.un.lsRjtError = be32_to_cpu(rspiocbp->iocb.un.ulpWord[4]);
|
|
lsrjt_event.reason_code = stat.un.b.lsRjtRsnCode;
|
|
lsrjt_event.explanation = stat.un.b.lsRjtRsnCodeExp;
|
|
fc_host_post_vendor_event(shost,
|
|
fc_get_event_number(),
|
|
sizeof(lsrjt_event),
|
|
(char *)&lsrjt_event,
|
|
LPFC_NL_VENDOR_ID);
|
|
return;
|
|
}
|
|
if ((rspiocbp->iocb.ulpStatus == IOSTAT_NPORT_BSY) ||
|
|
(rspiocbp->iocb.ulpStatus == IOSTAT_FABRIC_BSY)) {
|
|
fabric_event.event_type = FC_REG_FABRIC_EVENT;
|
|
if (rspiocbp->iocb.ulpStatus == IOSTAT_NPORT_BSY)
|
|
fabric_event.subcategory = LPFC_EVENT_PORT_BUSY;
|
|
else
|
|
fabric_event.subcategory = LPFC_EVENT_FABRIC_BUSY;
|
|
memcpy(fabric_event.wwpn, &ndlp->nlp_portname,
|
|
sizeof(struct lpfc_name));
|
|
memcpy(fabric_event.wwnn, &ndlp->nlp_nodename,
|
|
sizeof(struct lpfc_name));
|
|
fc_host_post_vendor_event(shost,
|
|
fc_get_event_number(),
|
|
sizeof(fabric_event),
|
|
(char *)&fabric_event,
|
|
LPFC_NL_VENDOR_ID);
|
|
return;
|
|
}
|
|
|
|
}
|
|
|
|
/**
|
|
* lpfc_send_els_event - Posts unsolicited els event
|
|
* @vport: Pointer to vport object.
|
|
* @ndlp: Pointer FC node object.
|
|
* @cmd: ELS command code.
|
|
*
|
|
* This function posts an event when there is an incoming
|
|
* unsolicited ELS command.
|
|
**/
|
|
static void
|
|
lpfc_send_els_event(struct lpfc_vport *vport,
|
|
struct lpfc_nodelist *ndlp,
|
|
uint32_t *payload)
|
|
{
|
|
struct lpfc_els_event_header *els_data = NULL;
|
|
struct lpfc_logo_event *logo_data = NULL;
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
|
|
if (*payload == ELS_CMD_LOGO) {
|
|
logo_data = kmalloc(sizeof(struct lpfc_logo_event), GFP_KERNEL);
|
|
if (!logo_data) {
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
|
|
"0148 Failed to allocate memory "
|
|
"for LOGO event\n");
|
|
return;
|
|
}
|
|
els_data = &logo_data->header;
|
|
} else {
|
|
els_data = kmalloc(sizeof(struct lpfc_els_event_header),
|
|
GFP_KERNEL);
|
|
if (!els_data) {
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
|
|
"0149 Failed to allocate memory "
|
|
"for ELS event\n");
|
|
return;
|
|
}
|
|
}
|
|
els_data->event_type = FC_REG_ELS_EVENT;
|
|
switch (*payload) {
|
|
case ELS_CMD_PLOGI:
|
|
els_data->subcategory = LPFC_EVENT_PLOGI_RCV;
|
|
break;
|
|
case ELS_CMD_PRLO:
|
|
els_data->subcategory = LPFC_EVENT_PRLO_RCV;
|
|
break;
|
|
case ELS_CMD_ADISC:
|
|
els_data->subcategory = LPFC_EVENT_ADISC_RCV;
|
|
break;
|
|
case ELS_CMD_LOGO:
|
|
els_data->subcategory = LPFC_EVENT_LOGO_RCV;
|
|
/* Copy the WWPN in the LOGO payload */
|
|
memcpy(logo_data->logo_wwpn, &payload[2],
|
|
sizeof(struct lpfc_name));
|
|
break;
|
|
default:
|
|
kfree(els_data);
|
|
return;
|
|
}
|
|
memcpy(els_data->wwpn, &ndlp->nlp_portname, sizeof(struct lpfc_name));
|
|
memcpy(els_data->wwnn, &ndlp->nlp_nodename, sizeof(struct lpfc_name));
|
|
if (*payload == ELS_CMD_LOGO) {
|
|
fc_host_post_vendor_event(shost,
|
|
fc_get_event_number(),
|
|
sizeof(struct lpfc_logo_event),
|
|
(char *)logo_data,
|
|
LPFC_NL_VENDOR_ID);
|
|
kfree(logo_data);
|
|
} else {
|
|
fc_host_post_vendor_event(shost,
|
|
fc_get_event_number(),
|
|
sizeof(struct lpfc_els_event_header),
|
|
(char *)els_data,
|
|
LPFC_NL_VENDOR_ID);
|
|
kfree(els_data);
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
/**
|
|
* lpfc_els_unsol_buffer - Process an unsolicited event data buffer
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @pring: pointer to a SLI ring.
|
|
* @vport: pointer to a host virtual N_Port data structure.
|
|
* @elsiocb: pointer to lpfc els command iocb data structure.
|
|
*
|
|
* This routine is used for processing the IOCB associated with a unsolicited
|
|
* event. It first determines whether there is an existing ndlp that matches
|
|
* the DID from the unsolicited IOCB. If not, it will create a new one with
|
|
* the DID from the unsolicited IOCB. The ELS command from the unsolicited
|
|
* IOCB is then used to invoke the proper routine and to set up proper state
|
|
* of the discovery state machine.
|
|
**/
|
|
static void
|
|
lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
|
|
struct lpfc_vport *vport, struct lpfc_iocbq *elsiocb)
|
|
{
|
|
struct Scsi_Host *shost;
|
|
struct lpfc_nodelist *ndlp;
|
|
struct ls_rjt stat;
|
|
uint32_t *payload;
|
|
uint32_t cmd, did, newnode;
|
|
uint8_t rjt_exp, rjt_err = 0;
|
|
IOCB_t *icmd = &elsiocb->iocb;
|
|
|
|
if (!vport || !(elsiocb->context2))
|
|
goto dropit;
|
|
|
|
newnode = 0;
|
|
payload = ((struct lpfc_dmabuf *)elsiocb->context2)->virt;
|
|
cmd = *payload;
|
|
if ((phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) == 0)
|
|
lpfc_post_buffer(phba, pring, 1);
|
|
|
|
did = icmd->un.rcvels.remoteID;
|
|
if (icmd->ulpStatus) {
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
|
|
"RCV Unsol ELS: status:x%x/x%x did:x%x",
|
|
icmd->ulpStatus, icmd->un.ulpWord[4], did);
|
|
goto dropit;
|
|
}
|
|
|
|
/* Check to see if link went down during discovery */
|
|
if (lpfc_els_chk_latt(vport))
|
|
goto dropit;
|
|
|
|
/* Ignore traffic received during vport shutdown. */
|
|
if (vport->load_flag & FC_UNLOADING)
|
|
goto dropit;
|
|
|
|
/* If NPort discovery is delayed drop incoming ELS */
|
|
if ((vport->fc_flag & FC_DISC_DELAYED) &&
|
|
(cmd != ELS_CMD_PLOGI))
|
|
goto dropit;
|
|
|
|
ndlp = lpfc_findnode_did(vport, did);
|
|
if (!ndlp) {
|
|
/* Cannot find existing Fabric ndlp, so allocate a new one */
|
|
ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
|
|
if (!ndlp)
|
|
goto dropit;
|
|
|
|
lpfc_nlp_init(vport, ndlp, did);
|
|
lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
|
|
newnode = 1;
|
|
if ((did & Fabric_DID_MASK) == Fabric_DID_MASK)
|
|
ndlp->nlp_type |= NLP_FABRIC;
|
|
} else if (!NLP_CHK_NODE_ACT(ndlp)) {
|
|
ndlp = lpfc_enable_node(vport, ndlp,
|
|
NLP_STE_UNUSED_NODE);
|
|
if (!ndlp)
|
|
goto dropit;
|
|
lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
|
|
newnode = 1;
|
|
if ((did & Fabric_DID_MASK) == Fabric_DID_MASK)
|
|
ndlp->nlp_type |= NLP_FABRIC;
|
|
} else if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
|
|
/* This is similar to the new node path */
|
|
ndlp = lpfc_nlp_get(ndlp);
|
|
if (!ndlp)
|
|
goto dropit;
|
|
lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
|
|
newnode = 1;
|
|
}
|
|
|
|
phba->fc_stat.elsRcvFrame++;
|
|
|
|
/*
|
|
* Do not process any unsolicited ELS commands
|
|
* if the ndlp is in DEV_LOSS
|
|
*/
|
|
shost = lpfc_shost_from_vport(vport);
|
|
spin_lock_irq(shost->host_lock);
|
|
if (ndlp->nlp_flag & NLP_IN_DEV_LOSS) {
|
|
spin_unlock_irq(shost->host_lock);
|
|
goto dropit;
|
|
}
|
|
spin_unlock_irq(shost->host_lock);
|
|
|
|
elsiocb->context1 = lpfc_nlp_get(ndlp);
|
|
elsiocb->vport = vport;
|
|
|
|
if ((cmd & ELS_CMD_MASK) == ELS_CMD_RSCN) {
|
|
cmd &= ELS_CMD_MASK;
|
|
}
|
|
/* ELS command <elsCmd> received from NPORT <did> */
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
|
|
"0112 ELS command x%x received from NPORT x%x "
|
|
"Data: x%x x%x x%x x%x\n",
|
|
cmd, did, vport->port_state, vport->fc_flag,
|
|
vport->fc_myDID, vport->fc_prevDID);
|
|
|
|
/* reject till our FLOGI completes */
|
|
if ((vport->port_state < LPFC_FABRIC_CFG_LINK) &&
|
|
(cmd != ELS_CMD_FLOGI)) {
|
|
rjt_err = LSRJT_UNABLE_TPC;
|
|
rjt_exp = LSEXP_NOTHING_MORE;
|
|
goto lsrjt;
|
|
}
|
|
|
|
switch (cmd) {
|
|
case ELS_CMD_PLOGI:
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
|
|
"RCV PLOGI: did:x%x/ste:x%x flg:x%x",
|
|
did, vport->port_state, ndlp->nlp_flag);
|
|
|
|
phba->fc_stat.elsRcvPLOGI++;
|
|
ndlp = lpfc_plogi_confirm_nport(phba, payload, ndlp);
|
|
if (phba->sli_rev == LPFC_SLI_REV4 &&
|
|
(phba->pport->fc_flag & FC_PT2PT)) {
|
|
vport->fc_prevDID = vport->fc_myDID;
|
|
/* Our DID needs to be updated before registering
|
|
* the vfi. This is done in lpfc_rcv_plogi but
|
|
* that is called after the reg_vfi.
|
|
*/
|
|
vport->fc_myDID = elsiocb->iocb.un.rcvels.parmRo;
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
|
|
"3312 Remote port assigned DID x%x "
|
|
"%x\n", vport->fc_myDID,
|
|
vport->fc_prevDID);
|
|
}
|
|
|
|
lpfc_send_els_event(vport, ndlp, payload);
|
|
|
|
/* If Nport discovery is delayed, reject PLOGIs */
|
|
if (vport->fc_flag & FC_DISC_DELAYED) {
|
|
rjt_err = LSRJT_UNABLE_TPC;
|
|
rjt_exp = LSEXP_NOTHING_MORE;
|
|
break;
|
|
}
|
|
|
|
if (vport->port_state < LPFC_DISC_AUTH) {
|
|
if (!(phba->pport->fc_flag & FC_PT2PT) ||
|
|
(phba->pport->fc_flag & FC_PT2PT_PLOGI)) {
|
|
rjt_err = LSRJT_UNABLE_TPC;
|
|
rjt_exp = LSEXP_NOTHING_MORE;
|
|
break;
|
|
}
|
|
}
|
|
|
|
spin_lock_irq(shost->host_lock);
|
|
ndlp->nlp_flag &= ~NLP_TARGET_REMOVE;
|
|
spin_unlock_irq(shost->host_lock);
|
|
|
|
lpfc_disc_state_machine(vport, ndlp, elsiocb,
|
|
NLP_EVT_RCV_PLOGI);
|
|
|
|
break;
|
|
case ELS_CMD_FLOGI:
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
|
|
"RCV FLOGI: did:x%x/ste:x%x flg:x%x",
|
|
did, vport->port_state, ndlp->nlp_flag);
|
|
|
|
phba->fc_stat.elsRcvFLOGI++;
|
|
lpfc_els_rcv_flogi(vport, elsiocb, ndlp);
|
|
if (newnode)
|
|
lpfc_nlp_put(ndlp);
|
|
break;
|
|
case ELS_CMD_LOGO:
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
|
|
"RCV LOGO: did:x%x/ste:x%x flg:x%x",
|
|
did, vport->port_state, ndlp->nlp_flag);
|
|
|
|
phba->fc_stat.elsRcvLOGO++;
|
|
lpfc_send_els_event(vport, ndlp, payload);
|
|
if (vport->port_state < LPFC_DISC_AUTH) {
|
|
rjt_err = LSRJT_UNABLE_TPC;
|
|
rjt_exp = LSEXP_NOTHING_MORE;
|
|
break;
|
|
}
|
|
lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_LOGO);
|
|
break;
|
|
case ELS_CMD_PRLO:
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
|
|
"RCV PRLO: did:x%x/ste:x%x flg:x%x",
|
|
did, vport->port_state, ndlp->nlp_flag);
|
|
|
|
phba->fc_stat.elsRcvPRLO++;
|
|
lpfc_send_els_event(vport, ndlp, payload);
|
|
if (vport->port_state < LPFC_DISC_AUTH) {
|
|
rjt_err = LSRJT_UNABLE_TPC;
|
|
rjt_exp = LSEXP_NOTHING_MORE;
|
|
break;
|
|
}
|
|
lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLO);
|
|
break;
|
|
case ELS_CMD_LCB:
|
|
phba->fc_stat.elsRcvLCB++;
|
|
lpfc_els_rcv_lcb(vport, elsiocb, ndlp);
|
|
break;
|
|
case ELS_CMD_RDP:
|
|
phba->fc_stat.elsRcvRDP++;
|
|
lpfc_els_rcv_rdp(vport, elsiocb, ndlp);
|
|
break;
|
|
case ELS_CMD_RSCN:
|
|
phba->fc_stat.elsRcvRSCN++;
|
|
lpfc_els_rcv_rscn(vport, elsiocb, ndlp);
|
|
if (newnode)
|
|
lpfc_nlp_put(ndlp);
|
|
break;
|
|
case ELS_CMD_ADISC:
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
|
|
"RCV ADISC: did:x%x/ste:x%x flg:x%x",
|
|
did, vport->port_state, ndlp->nlp_flag);
|
|
|
|
lpfc_send_els_event(vport, ndlp, payload);
|
|
phba->fc_stat.elsRcvADISC++;
|
|
if (vport->port_state < LPFC_DISC_AUTH) {
|
|
rjt_err = LSRJT_UNABLE_TPC;
|
|
rjt_exp = LSEXP_NOTHING_MORE;
|
|
break;
|
|
}
|
|
lpfc_disc_state_machine(vport, ndlp, elsiocb,
|
|
NLP_EVT_RCV_ADISC);
|
|
break;
|
|
case ELS_CMD_PDISC:
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
|
|
"RCV PDISC: did:x%x/ste:x%x flg:x%x",
|
|
did, vport->port_state, ndlp->nlp_flag);
|
|
|
|
phba->fc_stat.elsRcvPDISC++;
|
|
if (vport->port_state < LPFC_DISC_AUTH) {
|
|
rjt_err = LSRJT_UNABLE_TPC;
|
|
rjt_exp = LSEXP_NOTHING_MORE;
|
|
break;
|
|
}
|
|
lpfc_disc_state_machine(vport, ndlp, elsiocb,
|
|
NLP_EVT_RCV_PDISC);
|
|
break;
|
|
case ELS_CMD_FARPR:
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
|
|
"RCV FARPR: did:x%x/ste:x%x flg:x%x",
|
|
did, vport->port_state, ndlp->nlp_flag);
|
|
|
|
phba->fc_stat.elsRcvFARPR++;
|
|
lpfc_els_rcv_farpr(vport, elsiocb, ndlp);
|
|
break;
|
|
case ELS_CMD_FARP:
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
|
|
"RCV FARP: did:x%x/ste:x%x flg:x%x",
|
|
did, vport->port_state, ndlp->nlp_flag);
|
|
|
|
phba->fc_stat.elsRcvFARP++;
|
|
lpfc_els_rcv_farp(vport, elsiocb, ndlp);
|
|
break;
|
|
case ELS_CMD_FAN:
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
|
|
"RCV FAN: did:x%x/ste:x%x flg:x%x",
|
|
did, vport->port_state, ndlp->nlp_flag);
|
|
|
|
phba->fc_stat.elsRcvFAN++;
|
|
lpfc_els_rcv_fan(vport, elsiocb, ndlp);
|
|
break;
|
|
case ELS_CMD_PRLI:
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
|
|
"RCV PRLI: did:x%x/ste:x%x flg:x%x",
|
|
did, vport->port_state, ndlp->nlp_flag);
|
|
|
|
phba->fc_stat.elsRcvPRLI++;
|
|
if (vport->port_state < LPFC_DISC_AUTH) {
|
|
rjt_err = LSRJT_UNABLE_TPC;
|
|
rjt_exp = LSEXP_NOTHING_MORE;
|
|
break;
|
|
}
|
|
lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLI);
|
|
break;
|
|
case ELS_CMD_LIRR:
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
|
|
"RCV LIRR: did:x%x/ste:x%x flg:x%x",
|
|
did, vport->port_state, ndlp->nlp_flag);
|
|
|
|
phba->fc_stat.elsRcvLIRR++;
|
|
lpfc_els_rcv_lirr(vport, elsiocb, ndlp);
|
|
if (newnode)
|
|
lpfc_nlp_put(ndlp);
|
|
break;
|
|
case ELS_CMD_RLS:
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
|
|
"RCV RLS: did:x%x/ste:x%x flg:x%x",
|
|
did, vport->port_state, ndlp->nlp_flag);
|
|
|
|
phba->fc_stat.elsRcvRLS++;
|
|
lpfc_els_rcv_rls(vport, elsiocb, ndlp);
|
|
if (newnode)
|
|
lpfc_nlp_put(ndlp);
|
|
break;
|
|
case ELS_CMD_RPS:
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
|
|
"RCV RPS: did:x%x/ste:x%x flg:x%x",
|
|
did, vport->port_state, ndlp->nlp_flag);
|
|
|
|
phba->fc_stat.elsRcvRPS++;
|
|
lpfc_els_rcv_rps(vport, elsiocb, ndlp);
|
|
if (newnode)
|
|
lpfc_nlp_put(ndlp);
|
|
break;
|
|
case ELS_CMD_RPL:
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
|
|
"RCV RPL: did:x%x/ste:x%x flg:x%x",
|
|
did, vport->port_state, ndlp->nlp_flag);
|
|
|
|
phba->fc_stat.elsRcvRPL++;
|
|
lpfc_els_rcv_rpl(vport, elsiocb, ndlp);
|
|
if (newnode)
|
|
lpfc_nlp_put(ndlp);
|
|
break;
|
|
case ELS_CMD_RNID:
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
|
|
"RCV RNID: did:x%x/ste:x%x flg:x%x",
|
|
did, vport->port_state, ndlp->nlp_flag);
|
|
|
|
phba->fc_stat.elsRcvRNID++;
|
|
lpfc_els_rcv_rnid(vport, elsiocb, ndlp);
|
|
if (newnode)
|
|
lpfc_nlp_put(ndlp);
|
|
break;
|
|
case ELS_CMD_RTV:
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
|
|
"RCV RTV: did:x%x/ste:x%x flg:x%x",
|
|
did, vport->port_state, ndlp->nlp_flag);
|
|
phba->fc_stat.elsRcvRTV++;
|
|
lpfc_els_rcv_rtv(vport, elsiocb, ndlp);
|
|
if (newnode)
|
|
lpfc_nlp_put(ndlp);
|
|
break;
|
|
case ELS_CMD_RRQ:
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
|
|
"RCV RRQ: did:x%x/ste:x%x flg:x%x",
|
|
did, vport->port_state, ndlp->nlp_flag);
|
|
|
|
phba->fc_stat.elsRcvRRQ++;
|
|
lpfc_els_rcv_rrq(vport, elsiocb, ndlp);
|
|
if (newnode)
|
|
lpfc_nlp_put(ndlp);
|
|
break;
|
|
case ELS_CMD_ECHO:
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
|
|
"RCV ECHO: did:x%x/ste:x%x flg:x%x",
|
|
did, vport->port_state, ndlp->nlp_flag);
|
|
|
|
phba->fc_stat.elsRcvECHO++;
|
|
lpfc_els_rcv_echo(vport, elsiocb, ndlp);
|
|
if (newnode)
|
|
lpfc_nlp_put(ndlp);
|
|
break;
|
|
case ELS_CMD_REC:
|
|
/* receive this due to exchange closed */
|
|
rjt_err = LSRJT_UNABLE_TPC;
|
|
rjt_exp = LSEXP_INVALID_OX_RX;
|
|
break;
|
|
default:
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
|
|
"RCV ELS cmd: cmd:x%x did:x%x/ste:x%x",
|
|
cmd, did, vport->port_state);
|
|
|
|
/* Unsupported ELS command, reject */
|
|
rjt_err = LSRJT_CMD_UNSUPPORTED;
|
|
rjt_exp = LSEXP_NOTHING_MORE;
|
|
|
|
/* Unknown ELS command <elsCmd> received from NPORT <did> */
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
|
|
"0115 Unknown ELS command x%x "
|
|
"received from NPORT x%x\n", cmd, did);
|
|
if (newnode)
|
|
lpfc_nlp_put(ndlp);
|
|
break;
|
|
}
|
|
|
|
lsrjt:
|
|
/* check if need to LS_RJT received ELS cmd */
|
|
if (rjt_err) {
|
|
memset(&stat, 0, sizeof(stat));
|
|
stat.un.b.lsRjtRsnCode = rjt_err;
|
|
stat.un.b.lsRjtRsnCodeExp = rjt_exp;
|
|
lpfc_els_rsp_reject(vport, stat.un.lsRjtError, elsiocb, ndlp,
|
|
NULL);
|
|
}
|
|
|
|
lpfc_nlp_put(elsiocb->context1);
|
|
elsiocb->context1 = NULL;
|
|
return;
|
|
|
|
dropit:
|
|
if (vport && !(vport->load_flag & FC_UNLOADING))
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
|
|
"0111 Dropping received ELS cmd "
|
|
"Data: x%x x%x x%x\n",
|
|
icmd->ulpStatus, icmd->un.ulpWord[4], icmd->ulpTimeout);
|
|
phba->fc_stat.elsRcvDrop++;
|
|
}
|
|
|
|
/**
|
|
* lpfc_els_unsol_event - Process an unsolicited event from an els sli ring
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @pring: pointer to a SLI ring.
|
|
* @elsiocb: pointer to lpfc els iocb data structure.
|
|
*
|
|
* This routine is used to process an unsolicited event received from a SLI
|
|
* (Service Level Interface) ring. The actual processing of the data buffer
|
|
* associated with the unsolicited event is done by invoking the routine
|
|
* lpfc_els_unsol_buffer() after properly set up the iocb buffer from the
|
|
* SLI ring on which the unsolicited event was received.
|
|
**/
|
|
void
|
|
lpfc_els_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
|
|
struct lpfc_iocbq *elsiocb)
|
|
{
|
|
struct lpfc_vport *vport = phba->pport;
|
|
IOCB_t *icmd = &elsiocb->iocb;
|
|
dma_addr_t paddr;
|
|
struct lpfc_dmabuf *bdeBuf1 = elsiocb->context2;
|
|
struct lpfc_dmabuf *bdeBuf2 = elsiocb->context3;
|
|
|
|
elsiocb->context1 = NULL;
|
|
elsiocb->context2 = NULL;
|
|
elsiocb->context3 = NULL;
|
|
|
|
if (icmd->ulpStatus == IOSTAT_NEED_BUFFER) {
|
|
lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ);
|
|
} else if (icmd->ulpStatus == IOSTAT_LOCAL_REJECT &&
|
|
(icmd->un.ulpWord[4] & IOERR_PARAM_MASK) ==
|
|
IOERR_RCV_BUFFER_WAITING) {
|
|
phba->fc_stat.NoRcvBuf++;
|
|
/* Not enough posted buffers; Try posting more buffers */
|
|
if (!(phba->sli3_options & LPFC_SLI3_HBQ_ENABLED))
|
|
lpfc_post_buffer(phba, pring, 0);
|
|
return;
|
|
}
|
|
|
|
if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
|
|
(icmd->ulpCommand == CMD_IOCB_RCV_ELS64_CX ||
|
|
icmd->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) {
|
|
if (icmd->unsli3.rcvsli3.vpi == 0xffff)
|
|
vport = phba->pport;
|
|
else
|
|
vport = lpfc_find_vport_by_vpid(phba,
|
|
icmd->unsli3.rcvsli3.vpi);
|
|
}
|
|
|
|
/* If there are no BDEs associated
|
|
* with this IOCB, there is nothing to do.
|
|
*/
|
|
if (icmd->ulpBdeCount == 0)
|
|
return;
|
|
|
|
/* type of ELS cmd is first 32bit word
|
|
* in packet
|
|
*/
|
|
if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
|
|
elsiocb->context2 = bdeBuf1;
|
|
} else {
|
|
paddr = getPaddr(icmd->un.cont64[0].addrHigh,
|
|
icmd->un.cont64[0].addrLow);
|
|
elsiocb->context2 = lpfc_sli_ringpostbuf_get(phba, pring,
|
|
paddr);
|
|
}
|
|
|
|
lpfc_els_unsol_buffer(phba, pring, vport, elsiocb);
|
|
/*
|
|
* The different unsolicited event handlers would tell us
|
|
* if they are done with "mp" by setting context2 to NULL.
|
|
*/
|
|
if (elsiocb->context2) {
|
|
lpfc_in_buf_free(phba, (struct lpfc_dmabuf *)elsiocb->context2);
|
|
elsiocb->context2 = NULL;
|
|
}
|
|
|
|
/* RCV_ELS64_CX provide for 2 BDEs - process 2nd if included */
|
|
if ((phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) &&
|
|
icmd->ulpBdeCount == 2) {
|
|
elsiocb->context2 = bdeBuf2;
|
|
lpfc_els_unsol_buffer(phba, pring, vport, elsiocb);
|
|
/* free mp if we are done with it */
|
|
if (elsiocb->context2) {
|
|
lpfc_in_buf_free(phba, elsiocb->context2);
|
|
elsiocb->context2 = NULL;
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
lpfc_start_fdmi(struct lpfc_vport *vport)
|
|
{
|
|
struct lpfc_hba *phba = vport->phba;
|
|
struct lpfc_nodelist *ndlp;
|
|
|
|
/* If this is the first time, allocate an ndlp and initialize
|
|
* it. Otherwise, make sure the node is enabled and then do the
|
|
* login.
|
|
*/
|
|
ndlp = lpfc_findnode_did(vport, FDMI_DID);
|
|
if (!ndlp) {
|
|
ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
|
|
if (ndlp) {
|
|
lpfc_nlp_init(vport, ndlp, FDMI_DID);
|
|
ndlp->nlp_type |= NLP_FABRIC;
|
|
} else {
|
|
return;
|
|
}
|
|
}
|
|
if (!NLP_CHK_NODE_ACT(ndlp))
|
|
ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_NPR_NODE);
|
|
|
|
if (ndlp) {
|
|
lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
|
|
lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* lpfc_do_scr_ns_plogi - Issue a plogi to the name server for scr
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @vport: pointer to a virtual N_Port data structure.
|
|
*
|
|
* This routine issues a Port Login (PLOGI) to the Name Server with
|
|
* State Change Request (SCR) for a @vport. This routine will create an
|
|
* ndlp for the Name Server associated to the @vport if such node does
|
|
* not already exist. The PLOGI to Name Server is issued by invoking the
|
|
* lpfc_issue_els_plogi() routine. If Fabric-Device Management Interface
|
|
* (FDMI) is configured to the @vport, a FDMI node will be created and
|
|
* the PLOGI to FDMI is issued by invoking lpfc_issue_els_plogi() routine.
|
|
**/
|
|
void
|
|
lpfc_do_scr_ns_plogi(struct lpfc_hba *phba, struct lpfc_vport *vport)
|
|
{
|
|
struct lpfc_nodelist *ndlp;
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
|
|
/*
|
|
* If lpfc_delay_discovery parameter is set and the clean address
|
|
* bit is cleared and fc fabric parameters chenged, delay FC NPort
|
|
* discovery.
|
|
*/
|
|
spin_lock_irq(shost->host_lock);
|
|
if (vport->fc_flag & FC_DISC_DELAYED) {
|
|
spin_unlock_irq(shost->host_lock);
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
|
|
"3334 Delay fc port discovery for %d seconds\n",
|
|
phba->fc_ratov);
|
|
mod_timer(&vport->delayed_disc_tmo,
|
|
jiffies + msecs_to_jiffies(1000 * phba->fc_ratov));
|
|
return;
|
|
}
|
|
spin_unlock_irq(shost->host_lock);
|
|
|
|
ndlp = lpfc_findnode_did(vport, NameServer_DID);
|
|
if (!ndlp) {
|
|
ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
|
|
if (!ndlp) {
|
|
if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
|
|
lpfc_disc_start(vport);
|
|
return;
|
|
}
|
|
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
|
|
"0251 NameServer login: no memory\n");
|
|
return;
|
|
}
|
|
lpfc_nlp_init(vport, ndlp, NameServer_DID);
|
|
} else if (!NLP_CHK_NODE_ACT(ndlp)) {
|
|
ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
|
|
if (!ndlp) {
|
|
if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
|
|
lpfc_disc_start(vport);
|
|
return;
|
|
}
|
|
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
|
|
"0348 NameServer login: node freed\n");
|
|
return;
|
|
}
|
|
}
|
|
ndlp->nlp_type |= NLP_FABRIC;
|
|
|
|
lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
|
|
|
|
if (lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0)) {
|
|
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
|
|
"0252 Cannot issue NameServer login\n");
|
|
return;
|
|
}
|
|
|
|
if ((phba->cfg_enable_SmartSAN ||
|
|
(phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) &&
|
|
(vport->load_flag & FC_ALLOW_FDMI))
|
|
lpfc_start_fdmi(vport);
|
|
}
|
|
|
|
/**
|
|
* lpfc_cmpl_reg_new_vport - Completion callback function to register new vport
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @pmb: pointer to the driver internal queue element for mailbox command.
|
|
*
|
|
* This routine is the completion callback function to register new vport
|
|
* mailbox command. If the new vport mailbox command completes successfully,
|
|
* the fabric registration login shall be performed on physical port (the
|
|
* new vport created is actually a physical port, with VPI 0) or the port
|
|
* login to Name Server for State Change Request (SCR) will be performed
|
|
* on virtual port (real virtual port, with VPI greater than 0).
|
|
**/
|
|
static void
|
|
lpfc_cmpl_reg_new_vport(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_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
|
|
MAILBOX_t *mb = &pmb->u.mb;
|
|
int rc;
|
|
|
|
spin_lock_irq(shost->host_lock);
|
|
vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
|
|
spin_unlock_irq(shost->host_lock);
|
|
|
|
if (mb->mbxStatus) {
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
|
|
"0915 Register VPI failed : Status: x%x"
|
|
" upd bit: x%x \n", mb->mbxStatus,
|
|
mb->un.varRegVpi.upd);
|
|
if (phba->sli_rev == LPFC_SLI_REV4 &&
|
|
mb->un.varRegVpi.upd)
|
|
goto mbox_err_exit ;
|
|
|
|
switch (mb->mbxStatus) {
|
|
case 0x11: /* unsupported feature */
|
|
case 0x9603: /* max_vpi exceeded */
|
|
case 0x9602: /* Link event since CLEAR_LA */
|
|
/* giving up on vport registration */
|
|
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);
|
|
lpfc_can_disctmo(vport);
|
|
break;
|
|
/* If reg_vpi fail with invalid VPI status, re-init VPI */
|
|
case 0x20:
|
|
spin_lock_irq(shost->host_lock);
|
|
vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
|
|
spin_unlock_irq(shost->host_lock);
|
|
lpfc_init_vpi(phba, pmb, vport->vpi);
|
|
pmb->vport = vport;
|
|
pmb->mbox_cmpl = lpfc_init_vpi_cmpl;
|
|
rc = lpfc_sli_issue_mbox(phba, pmb,
|
|
MBX_NOWAIT);
|
|
if (rc == MBX_NOT_FINISHED) {
|
|
lpfc_printf_vlog(vport,
|
|
KERN_ERR, LOG_MBOX,
|
|
"2732 Failed to issue INIT_VPI"
|
|
" mailbox command\n");
|
|
} else {
|
|
lpfc_nlp_put(ndlp);
|
|
return;
|
|
}
|
|
|
|
default:
|
|
/* Try to recover from this error */
|
|
if (phba->sli_rev == LPFC_SLI_REV4)
|
|
lpfc_sli4_unreg_all_rpis(vport);
|
|
lpfc_mbx_unreg_vpi(vport);
|
|
spin_lock_irq(shost->host_lock);
|
|
vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
|
|
spin_unlock_irq(shost->host_lock);
|
|
if (vport->port_type == LPFC_PHYSICAL_PORT
|
|
&& !(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG))
|
|
lpfc_issue_init_vfi(vport);
|
|
else
|
|
lpfc_initial_fdisc(vport);
|
|
break;
|
|
}
|
|
} else {
|
|
spin_lock_irq(shost->host_lock);
|
|
vport->vpi_state |= LPFC_VPI_REGISTERED;
|
|
spin_unlock_irq(shost->host_lock);
|
|
if (vport == phba->pport) {
|
|
if (phba->sli_rev < LPFC_SLI_REV4)
|
|
lpfc_issue_fabric_reglogin(vport);
|
|
else {
|
|
/*
|
|
* If the physical port is instantiated using
|
|
* FDISC, do not start vport discovery.
|
|
*/
|
|
if (vport->port_state != LPFC_FDISC)
|
|
lpfc_start_fdiscs(phba);
|
|
lpfc_do_scr_ns_plogi(phba, vport);
|
|
}
|
|
} else
|
|
lpfc_do_scr_ns_plogi(phba, vport);
|
|
}
|
|
mbox_err_exit:
|
|
/* Now, we decrement the ndlp reference count held for this
|
|
* callback function
|
|
*/
|
|
lpfc_nlp_put(ndlp);
|
|
|
|
mempool_free(pmb, phba->mbox_mem_pool);
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* lpfc_register_new_vport - Register a new vport with a HBA
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @vport: pointer to a host virtual N_Port data structure.
|
|
* @ndlp: pointer to a node-list data structure.
|
|
*
|
|
* This routine registers the @vport as a new virtual port with a HBA.
|
|
* It is done through a registering vpi mailbox command.
|
|
**/
|
|
void
|
|
lpfc_register_new_vport(struct lpfc_hba *phba, struct lpfc_vport *vport,
|
|
struct lpfc_nodelist *ndlp)
|
|
{
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
LPFC_MBOXQ_t *mbox;
|
|
|
|
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (mbox) {
|
|
lpfc_reg_vpi(vport, mbox);
|
|
mbox->vport = vport;
|
|
mbox->context2 = lpfc_nlp_get(ndlp);
|
|
mbox->mbox_cmpl = lpfc_cmpl_reg_new_vport;
|
|
if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
|
|
== MBX_NOT_FINISHED) {
|
|
/* mailbox command not success, decrement ndlp
|
|
* reference count for this command
|
|
*/
|
|
lpfc_nlp_put(ndlp);
|
|
mempool_free(mbox, phba->mbox_mem_pool);
|
|
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
|
|
"0253 Register VPI: Can't send mbox\n");
|
|
goto mbox_err_exit;
|
|
}
|
|
} else {
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
|
|
"0254 Register VPI: no memory\n");
|
|
goto mbox_err_exit;
|
|
}
|
|
return;
|
|
|
|
mbox_err_exit:
|
|
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
|
|
spin_lock_irq(shost->host_lock);
|
|
vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
|
|
spin_unlock_irq(shost->host_lock);
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* lpfc_cancel_all_vport_retry_delay_timer - Cancel all vport retry delay timer
|
|
* @phba: pointer to lpfc hba data structure.
|
|
*
|
|
* This routine cancels the retry delay timers to all the vports.
|
|
**/
|
|
void
|
|
lpfc_cancel_all_vport_retry_delay_timer(struct lpfc_hba *phba)
|
|
{
|
|
struct lpfc_vport **vports;
|
|
struct lpfc_nodelist *ndlp;
|
|
uint32_t link_state;
|
|
int i;
|
|
|
|
/* Treat this failure as linkdown for all vports */
|
|
link_state = phba->link_state;
|
|
lpfc_linkdown(phba);
|
|
phba->link_state = link_state;
|
|
|
|
vports = lpfc_create_vport_work_array(phba);
|
|
|
|
if (vports) {
|
|
for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
|
|
ndlp = lpfc_findnode_did(vports[i], Fabric_DID);
|
|
if (ndlp)
|
|
lpfc_cancel_retry_delay_tmo(vports[i], ndlp);
|
|
lpfc_els_flush_cmd(vports[i]);
|
|
}
|
|
lpfc_destroy_vport_work_array(phba, vports);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* lpfc_retry_pport_discovery - Start timer to retry FLOGI.
|
|
* @phba: pointer to lpfc hba data structure.
|
|
*
|
|
* This routine abort all pending discovery commands and
|
|
* start a timer to retry FLOGI for the physical port
|
|
* discovery.
|
|
**/
|
|
void
|
|
lpfc_retry_pport_discovery(struct lpfc_hba *phba)
|
|
{
|
|
struct lpfc_nodelist *ndlp;
|
|
struct Scsi_Host *shost;
|
|
|
|
/* Cancel the all vports retry delay retry timers */
|
|
lpfc_cancel_all_vport_retry_delay_timer(phba);
|
|
|
|
/* If fabric require FLOGI, then re-instantiate physical login */
|
|
ndlp = lpfc_findnode_did(phba->pport, Fabric_DID);
|
|
if (!ndlp)
|
|
return;
|
|
|
|
shost = lpfc_shost_from_vport(phba->pport);
|
|
mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000));
|
|
spin_lock_irq(shost->host_lock);
|
|
ndlp->nlp_flag |= NLP_DELAY_TMO;
|
|
spin_unlock_irq(shost->host_lock);
|
|
ndlp->nlp_last_elscmd = ELS_CMD_FLOGI;
|
|
phba->pport->port_state = LPFC_FLOGI;
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* lpfc_fabric_login_reqd - Check if FLOGI required.
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @cmdiocb: pointer to FDISC command iocb.
|
|
* @rspiocb: pointer to FDISC response iocb.
|
|
*
|
|
* This routine checks if a FLOGI is reguired for FDISC
|
|
* to succeed.
|
|
**/
|
|
static int
|
|
lpfc_fabric_login_reqd(struct lpfc_hba *phba,
|
|
struct lpfc_iocbq *cmdiocb,
|
|
struct lpfc_iocbq *rspiocb)
|
|
{
|
|
|
|
if ((rspiocb->iocb.ulpStatus != IOSTAT_FABRIC_RJT) ||
|
|
(rspiocb->iocb.un.ulpWord[4] != RJT_LOGIN_REQUIRED))
|
|
return 0;
|
|
else
|
|
return 1;
|
|
}
|
|
|
|
/**
|
|
* lpfc_cmpl_els_fdisc - Completion function for fdisc iocb command
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @cmdiocb: pointer to lpfc command iocb data structure.
|
|
* @rspiocb: pointer to lpfc response iocb data structure.
|
|
*
|
|
* This routine is the completion callback function to a Fabric Discover
|
|
* (FDISC) ELS command. Since all the FDISC ELS commands are issued
|
|
* single threaded, each FDISC completion callback function will reset
|
|
* the discovery timer for all vports such that the timers will not get
|
|
* unnecessary timeout. The function checks the FDISC IOCB status. If error
|
|
* detected, the vport will be set to FC_VPORT_FAILED state. Otherwise,the
|
|
* vport will set to FC_VPORT_ACTIVE state. It then checks whether the DID
|
|
* assigned to the vport has been changed with the completion of the FDISC
|
|
* command. If so, both RPI (Remote Port Index) and VPI (Virtual Port Index)
|
|
* are unregistered from the HBA, and then the lpfc_register_new_vport()
|
|
* routine is invoked to register new vport with the HBA. Otherwise, the
|
|
* lpfc_do_scr_ns_plogi() routine is invoked to issue a PLOGI to the Name
|
|
* Server for State Change Request (SCR).
|
|
**/
|
|
static void
|
|
lpfc_cmpl_els_fdisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
|
|
struct lpfc_iocbq *rspiocb)
|
|
{
|
|
struct lpfc_vport *vport = cmdiocb->vport;
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
|
|
struct lpfc_nodelist *np;
|
|
struct lpfc_nodelist *next_np;
|
|
IOCB_t *irsp = &rspiocb->iocb;
|
|
struct lpfc_iocbq *piocb;
|
|
struct lpfc_dmabuf *pcmd = cmdiocb->context2, *prsp;
|
|
struct serv_parm *sp;
|
|
uint8_t fabric_param_changed;
|
|
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
|
|
"0123 FDISC completes. x%x/x%x prevDID: x%x\n",
|
|
irsp->ulpStatus, irsp->un.ulpWord[4],
|
|
vport->fc_prevDID);
|
|
/* Since all FDISCs are being single threaded, we
|
|
* must reset the discovery timer for ALL vports
|
|
* waiting to send FDISC when one completes.
|
|
*/
|
|
list_for_each_entry(piocb, &phba->fabric_iocb_list, list) {
|
|
lpfc_set_disctmo(piocb->vport);
|
|
}
|
|
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
|
|
"FDISC cmpl: status:x%x/x%x prevdid:x%x",
|
|
irsp->ulpStatus, irsp->un.ulpWord[4], vport->fc_prevDID);
|
|
|
|
if (irsp->ulpStatus) {
|
|
|
|
if (lpfc_fabric_login_reqd(phba, cmdiocb, rspiocb)) {
|
|
lpfc_retry_pport_discovery(phba);
|
|
goto out;
|
|
}
|
|
|
|
/* Check for retry */
|
|
if (lpfc_els_retry(phba, cmdiocb, rspiocb))
|
|
goto out;
|
|
/* FDISC failed */
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
|
|
"0126 FDISC failed. (x%x/x%x)\n",
|
|
irsp->ulpStatus, irsp->un.ulpWord[4]);
|
|
goto fdisc_failed;
|
|
}
|
|
spin_lock_irq(shost->host_lock);
|
|
vport->fc_flag &= ~FC_VPORT_CVL_RCVD;
|
|
vport->fc_flag &= ~FC_VPORT_LOGO_RCVD;
|
|
vport->fc_flag |= FC_FABRIC;
|
|
if (vport->phba->fc_topology == LPFC_TOPOLOGY_LOOP)
|
|
vport->fc_flag |= FC_PUBLIC_LOOP;
|
|
spin_unlock_irq(shost->host_lock);
|
|
|
|
vport->fc_myDID = irsp->un.ulpWord[4] & Mask_DID;
|
|
lpfc_vport_set_state(vport, FC_VPORT_ACTIVE);
|
|
prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list);
|
|
if (!prsp)
|
|
goto out;
|
|
sp = prsp->virt + sizeof(uint32_t);
|
|
fabric_param_changed = lpfc_check_clean_addr_bit(vport, sp);
|
|
memcpy(&vport->fabric_portname, &sp->portName,
|
|
sizeof(struct lpfc_name));
|
|
memcpy(&vport->fabric_nodename, &sp->nodeName,
|
|
sizeof(struct lpfc_name));
|
|
if (fabric_param_changed &&
|
|
!(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) {
|
|
/* If our NportID changed, we need to ensure all
|
|
* remaining NPORTs get unreg_login'ed so we can
|
|
* issue unreg_vpi.
|
|
*/
|
|
list_for_each_entry_safe(np, next_np,
|
|
&vport->fc_nodes, nlp_listp) {
|
|
if (!NLP_CHK_NODE_ACT(ndlp) ||
|
|
(np->nlp_state != NLP_STE_NPR_NODE) ||
|
|
!(np->nlp_flag & NLP_NPR_ADISC))
|
|
continue;
|
|
spin_lock_irq(shost->host_lock);
|
|
np->nlp_flag &= ~NLP_NPR_ADISC;
|
|
spin_unlock_irq(shost->host_lock);
|
|
lpfc_unreg_rpi(vport, np);
|
|
}
|
|
lpfc_cleanup_pending_mbox(vport);
|
|
|
|
if (phba->sli_rev == LPFC_SLI_REV4)
|
|
lpfc_sli4_unreg_all_rpis(vport);
|
|
|
|
lpfc_mbx_unreg_vpi(vport);
|
|
spin_lock_irq(shost->host_lock);
|
|
vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
|
|
if (phba->sli_rev == LPFC_SLI_REV4)
|
|
vport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
|
|
else
|
|
vport->fc_flag |= FC_LOGO_RCVD_DID_CHNG;
|
|
spin_unlock_irq(shost->host_lock);
|
|
} else if ((phba->sli_rev == LPFC_SLI_REV4) &&
|
|
!(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) {
|
|
/*
|
|
* Driver needs to re-reg VPI in order for f/w
|
|
* to update the MAC address.
|
|
*/
|
|
lpfc_register_new_vport(phba, vport, ndlp);
|
|
goto out;
|
|
}
|
|
|
|
if (vport->fc_flag & FC_VPORT_NEEDS_INIT_VPI)
|
|
lpfc_issue_init_vpi(vport);
|
|
else if (vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)
|
|
lpfc_register_new_vport(phba, vport, ndlp);
|
|
else
|
|
lpfc_do_scr_ns_plogi(phba, vport);
|
|
goto out;
|
|
fdisc_failed:
|
|
if (vport->fc_vport->vport_state != FC_VPORT_NO_FABRIC_RSCS)
|
|
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
|
|
/* Cancel discovery timer */
|
|
lpfc_can_disctmo(vport);
|
|
lpfc_nlp_put(ndlp);
|
|
out:
|
|
lpfc_els_free_iocb(phba, cmdiocb);
|
|
}
|
|
|
|
/**
|
|
* lpfc_issue_els_fdisc - Issue a fdisc iocb command
|
|
* @vport: pointer to a virtual N_Port data structure.
|
|
* @ndlp: pointer to a node-list data structure.
|
|
* @retry: number of retries to the command IOCB.
|
|
*
|
|
* This routine prepares and issues a Fabric Discover (FDISC) IOCB to
|
|
* a remote node (@ndlp) off a @vport. It uses the lpfc_issue_fabric_iocb()
|
|
* routine to issue the IOCB, which makes sure only one outstanding fabric
|
|
* IOCB will be sent off HBA at any given time.
|
|
*
|
|
* Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
|
|
* will be incremented by 1 for holding the ndlp and the reference to ndlp
|
|
* will be stored into the context1 field of the IOCB for the completion
|
|
* callback function to the FDISC ELS command.
|
|
*
|
|
* Return code
|
|
* 0 - Successfully issued fdisc iocb command
|
|
* 1 - Failed to issue fdisc iocb command
|
|
**/
|
|
static int
|
|
lpfc_issue_els_fdisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
|
|
uint8_t retry)
|
|
{
|
|
struct lpfc_hba *phba = vport->phba;
|
|
IOCB_t *icmd;
|
|
struct lpfc_iocbq *elsiocb;
|
|
struct serv_parm *sp;
|
|
uint8_t *pcmd;
|
|
uint16_t cmdsize;
|
|
int did = ndlp->nlp_DID;
|
|
int rc;
|
|
|
|
vport->port_state = LPFC_FDISC;
|
|
vport->fc_myDID = 0;
|
|
cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm));
|
|
elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did,
|
|
ELS_CMD_FDISC);
|
|
if (!elsiocb) {
|
|
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
|
|
"0255 Issue FDISC: no IOCB\n");
|
|
return 1;
|
|
}
|
|
|
|
icmd = &elsiocb->iocb;
|
|
icmd->un.elsreq64.myID = 0;
|
|
icmd->un.elsreq64.fl = 1;
|
|
|
|
/*
|
|
* SLI3 ports require a different context type value than SLI4.
|
|
* Catch SLI3 ports here and override the prep.
|
|
*/
|
|
if (phba->sli_rev == LPFC_SLI_REV3) {
|
|
icmd->ulpCt_h = 1;
|
|
icmd->ulpCt_l = 0;
|
|
}
|
|
|
|
pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
|
|
*((uint32_t *) (pcmd)) = ELS_CMD_FDISC;
|
|
pcmd += sizeof(uint32_t); /* CSP Word 1 */
|
|
memcpy(pcmd, &vport->phba->pport->fc_sparam, sizeof(struct serv_parm));
|
|
sp = (struct serv_parm *) pcmd;
|
|
/* Setup CSPs accordingly for Fabric */
|
|
sp->cmn.e_d_tov = 0;
|
|
sp->cmn.w2.r_a_tov = 0;
|
|
sp->cmn.virtual_fabric_support = 0;
|
|
sp->cls1.classValid = 0;
|
|
sp->cls2.seqDelivery = 1;
|
|
sp->cls3.seqDelivery = 1;
|
|
|
|
pcmd += sizeof(uint32_t); /* CSP Word 2 */
|
|
pcmd += sizeof(uint32_t); /* CSP Word 3 */
|
|
pcmd += sizeof(uint32_t); /* CSP Word 4 */
|
|
pcmd += sizeof(uint32_t); /* Port Name */
|
|
memcpy(pcmd, &vport->fc_portname, 8);
|
|
pcmd += sizeof(uint32_t); /* Node Name */
|
|
pcmd += sizeof(uint32_t); /* Node Name */
|
|
memcpy(pcmd, &vport->fc_nodename, 8);
|
|
|
|
lpfc_set_disctmo(vport);
|
|
|
|
phba->fc_stat.elsXmitFDISC++;
|
|
elsiocb->iocb_cmpl = lpfc_cmpl_els_fdisc;
|
|
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
|
|
"Issue FDISC: did:x%x",
|
|
did, 0, 0);
|
|
|
|
rc = lpfc_issue_fabric_iocb(phba, elsiocb);
|
|
if (rc == IOCB_ERROR) {
|
|
lpfc_els_free_iocb(phba, elsiocb);
|
|
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
|
|
"0256 Issue FDISC: Cannot send IOCB\n");
|
|
return 1;
|
|
}
|
|
lpfc_vport_set_state(vport, FC_VPORT_INITIALIZING);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_cmpl_els_npiv_logo - Completion function with vport logo
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @cmdiocb: pointer to lpfc command iocb data structure.
|
|
* @rspiocb: pointer to lpfc response iocb data structure.
|
|
*
|
|
* This routine is the completion callback function to the issuing of a LOGO
|
|
* ELS command off a vport. It frees the command IOCB and then decrement the
|
|
* reference count held on ndlp for this completion function, indicating that
|
|
* the reference to the ndlp is no long needed. Note that the
|
|
* lpfc_els_free_iocb() routine decrements the ndlp reference held for this
|
|
* callback function and an additional explicit ndlp reference decrementation
|
|
* will trigger the actual release of the ndlp.
|
|
**/
|
|
static void
|
|
lpfc_cmpl_els_npiv_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
|
|
struct lpfc_iocbq *rspiocb)
|
|
{
|
|
struct lpfc_vport *vport = cmdiocb->vport;
|
|
IOCB_t *irsp;
|
|
struct lpfc_nodelist *ndlp;
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
|
|
ndlp = (struct lpfc_nodelist *)cmdiocb->context1;
|
|
irsp = &rspiocb->iocb;
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
|
|
"LOGO npiv cmpl: status:x%x/x%x did:x%x",
|
|
irsp->ulpStatus, irsp->un.ulpWord[4], irsp->un.rcvels.remoteID);
|
|
|
|
lpfc_els_free_iocb(phba, cmdiocb);
|
|
vport->unreg_vpi_cmpl = VPORT_ERROR;
|
|
|
|
/* Trigger the release of the ndlp after logo */
|
|
lpfc_nlp_put(ndlp);
|
|
|
|
/* NPIV LOGO completes to NPort <nlp_DID> */
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
|
|
"2928 NPIV LOGO completes to NPort x%x "
|
|
"Data: x%x x%x x%x x%x\n",
|
|
ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4],
|
|
irsp->ulpTimeout, vport->num_disc_nodes);
|
|
|
|
if (irsp->ulpStatus == IOSTAT_SUCCESS) {
|
|
spin_lock_irq(shost->host_lock);
|
|
vport->fc_flag &= ~FC_NDISC_ACTIVE;
|
|
vport->fc_flag &= ~FC_FABRIC;
|
|
spin_unlock_irq(shost->host_lock);
|
|
lpfc_can_disctmo(vport);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* lpfc_issue_els_npiv_logo - Issue a logo off a vport
|
|
* @vport: pointer to a virtual N_Port data structure.
|
|
* @ndlp: pointer to a node-list data structure.
|
|
*
|
|
* This routine issues a LOGO ELS command to an @ndlp off a @vport.
|
|
*
|
|
* Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
|
|
* will be incremented by 1 for holding the ndlp and the reference to ndlp
|
|
* will be stored into the context1 field of the IOCB for the completion
|
|
* callback function to the LOGO ELS command.
|
|
*
|
|
* Return codes
|
|
* 0 - Successfully issued logo off the @vport
|
|
* 1 - Failed to issue logo off the @vport
|
|
**/
|
|
int
|
|
lpfc_issue_els_npiv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
|
|
{
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
struct lpfc_hba *phba = vport->phba;
|
|
struct lpfc_iocbq *elsiocb;
|
|
uint8_t *pcmd;
|
|
uint16_t cmdsize;
|
|
|
|
cmdsize = 2 * sizeof(uint32_t) + sizeof(struct lpfc_name);
|
|
elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, ndlp->nlp_DID,
|
|
ELS_CMD_LOGO);
|
|
if (!elsiocb)
|
|
return 1;
|
|
|
|
pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
|
|
*((uint32_t *) (pcmd)) = ELS_CMD_LOGO;
|
|
pcmd += sizeof(uint32_t);
|
|
|
|
/* Fill in LOGO payload */
|
|
*((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID);
|
|
pcmd += sizeof(uint32_t);
|
|
memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name));
|
|
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
|
|
"Issue LOGO npiv did:x%x flg:x%x",
|
|
ndlp->nlp_DID, ndlp->nlp_flag, 0);
|
|
|
|
elsiocb->iocb_cmpl = lpfc_cmpl_els_npiv_logo;
|
|
spin_lock_irq(shost->host_lock);
|
|
ndlp->nlp_flag |= NLP_LOGO_SND;
|
|
spin_unlock_irq(shost->host_lock);
|
|
if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) ==
|
|
IOCB_ERROR) {
|
|
spin_lock_irq(shost->host_lock);
|
|
ndlp->nlp_flag &= ~NLP_LOGO_SND;
|
|
spin_unlock_irq(shost->host_lock);
|
|
lpfc_els_free_iocb(phba, elsiocb);
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_fabric_block_timeout - Handler function to the fabric block timer
|
|
* @ptr: holder for the timer function associated data.
|
|
*
|
|
* This routine is invoked by the fabric iocb block timer after
|
|
* timeout. It posts the fabric iocb block timeout event by setting the
|
|
* WORKER_FABRIC_BLOCK_TMO bit to work port event bitmap and then invokes
|
|
* lpfc_worker_wake_up() routine to wake up the worker thread. It is for
|
|
* the worker thread to invoke the lpfc_unblock_fabric_iocbs() on the
|
|
* posted event WORKER_FABRIC_BLOCK_TMO.
|
|
**/
|
|
void
|
|
lpfc_fabric_block_timeout(unsigned long ptr)
|
|
{
|
|
struct lpfc_hba *phba = (struct lpfc_hba *) ptr;
|
|
unsigned long iflags;
|
|
uint32_t tmo_posted;
|
|
|
|
spin_lock_irqsave(&phba->pport->work_port_lock, iflags);
|
|
tmo_posted = phba->pport->work_port_events & WORKER_FABRIC_BLOCK_TMO;
|
|
if (!tmo_posted)
|
|
phba->pport->work_port_events |= WORKER_FABRIC_BLOCK_TMO;
|
|
spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags);
|
|
|
|
if (!tmo_posted)
|
|
lpfc_worker_wake_up(phba);
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* lpfc_resume_fabric_iocbs - Issue a fabric iocb from driver internal list
|
|
* @phba: pointer to lpfc hba data structure.
|
|
*
|
|
* This routine issues one fabric iocb from the driver internal list to
|
|
* the HBA. It first checks whether it's ready to issue one fabric iocb to
|
|
* the HBA (whether there is no outstanding fabric iocb). If so, it shall
|
|
* remove one pending fabric iocb from the driver internal list and invokes
|
|
* lpfc_sli_issue_iocb() routine to send the fabric iocb to the HBA.
|
|
**/
|
|
static void
|
|
lpfc_resume_fabric_iocbs(struct lpfc_hba *phba)
|
|
{
|
|
struct lpfc_iocbq *iocb;
|
|
unsigned long iflags;
|
|
int ret;
|
|
IOCB_t *cmd;
|
|
|
|
repeat:
|
|
iocb = NULL;
|
|
spin_lock_irqsave(&phba->hbalock, iflags);
|
|
/* Post any pending iocb to the SLI layer */
|
|
if (atomic_read(&phba->fabric_iocb_count) == 0) {
|
|
list_remove_head(&phba->fabric_iocb_list, iocb, typeof(*iocb),
|
|
list);
|
|
if (iocb)
|
|
/* Increment fabric iocb count to hold the position */
|
|
atomic_inc(&phba->fabric_iocb_count);
|
|
}
|
|
spin_unlock_irqrestore(&phba->hbalock, iflags);
|
|
if (iocb) {
|
|
iocb->fabric_iocb_cmpl = iocb->iocb_cmpl;
|
|
iocb->iocb_cmpl = lpfc_cmpl_fabric_iocb;
|
|
iocb->iocb_flag |= LPFC_IO_FABRIC;
|
|
|
|
lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD,
|
|
"Fabric sched1: ste:x%x",
|
|
iocb->vport->port_state, 0, 0);
|
|
|
|
ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocb, 0);
|
|
|
|
if (ret == IOCB_ERROR) {
|
|
iocb->iocb_cmpl = iocb->fabric_iocb_cmpl;
|
|
iocb->fabric_iocb_cmpl = NULL;
|
|
iocb->iocb_flag &= ~LPFC_IO_FABRIC;
|
|
cmd = &iocb->iocb;
|
|
cmd->ulpStatus = IOSTAT_LOCAL_REJECT;
|
|
cmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
|
|
iocb->iocb_cmpl(phba, iocb, iocb);
|
|
|
|
atomic_dec(&phba->fabric_iocb_count);
|
|
goto repeat;
|
|
}
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* lpfc_unblock_fabric_iocbs - Unblock issuing fabric iocb command
|
|
* @phba: pointer to lpfc hba data structure.
|
|
*
|
|
* This routine unblocks the issuing fabric iocb command. The function
|
|
* will clear the fabric iocb block bit and then invoke the routine
|
|
* lpfc_resume_fabric_iocbs() to issue one of the pending fabric iocb
|
|
* from the driver internal fabric iocb list.
|
|
**/
|
|
void
|
|
lpfc_unblock_fabric_iocbs(struct lpfc_hba *phba)
|
|
{
|
|
clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
|
|
|
|
lpfc_resume_fabric_iocbs(phba);
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* lpfc_block_fabric_iocbs - Block issuing fabric iocb command
|
|
* @phba: pointer to lpfc hba data structure.
|
|
*
|
|
* This routine blocks the issuing fabric iocb for a specified amount of
|
|
* time (currently 100 ms). This is done by set the fabric iocb block bit
|
|
* and set up a timeout timer for 100ms. When the block bit is set, no more
|
|
* fabric iocb will be issued out of the HBA.
|
|
**/
|
|
static void
|
|
lpfc_block_fabric_iocbs(struct lpfc_hba *phba)
|
|
{
|
|
int blocked;
|
|
|
|
blocked = test_and_set_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
|
|
/* Start a timer to unblock fabric iocbs after 100ms */
|
|
if (!blocked)
|
|
mod_timer(&phba->fabric_block_timer,
|
|
jiffies + msecs_to_jiffies(100));
|
|
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* lpfc_cmpl_fabric_iocb - Completion callback function for fabric iocb
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @cmdiocb: pointer to lpfc command iocb data structure.
|
|
* @rspiocb: pointer to lpfc response iocb data structure.
|
|
*
|
|
* This routine is the callback function that is put to the fabric iocb's
|
|
* callback function pointer (iocb->iocb_cmpl). The original iocb's callback
|
|
* function pointer has been stored in iocb->fabric_iocb_cmpl. This callback
|
|
* function first restores and invokes the original iocb's callback function
|
|
* and then invokes the lpfc_resume_fabric_iocbs() routine to issue the next
|
|
* fabric bound iocb from the driver internal fabric iocb list onto the wire.
|
|
**/
|
|
static void
|
|
lpfc_cmpl_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
|
|
struct lpfc_iocbq *rspiocb)
|
|
{
|
|
struct ls_rjt stat;
|
|
|
|
if ((cmdiocb->iocb_flag & LPFC_IO_FABRIC) != LPFC_IO_FABRIC)
|
|
BUG();
|
|
|
|
switch (rspiocb->iocb.ulpStatus) {
|
|
case IOSTAT_NPORT_RJT:
|
|
case IOSTAT_FABRIC_RJT:
|
|
if (rspiocb->iocb.un.ulpWord[4] & RJT_UNAVAIL_TEMP) {
|
|
lpfc_block_fabric_iocbs(phba);
|
|
}
|
|
break;
|
|
|
|
case IOSTAT_NPORT_BSY:
|
|
case IOSTAT_FABRIC_BSY:
|
|
lpfc_block_fabric_iocbs(phba);
|
|
break;
|
|
|
|
case IOSTAT_LS_RJT:
|
|
stat.un.lsRjtError =
|
|
be32_to_cpu(rspiocb->iocb.un.ulpWord[4]);
|
|
if ((stat.un.b.lsRjtRsnCode == LSRJT_UNABLE_TPC) ||
|
|
(stat.un.b.lsRjtRsnCode == LSRJT_LOGICAL_BSY))
|
|
lpfc_block_fabric_iocbs(phba);
|
|
break;
|
|
}
|
|
|
|
if (atomic_read(&phba->fabric_iocb_count) == 0)
|
|
BUG();
|
|
|
|
cmdiocb->iocb_cmpl = cmdiocb->fabric_iocb_cmpl;
|
|
cmdiocb->fabric_iocb_cmpl = NULL;
|
|
cmdiocb->iocb_flag &= ~LPFC_IO_FABRIC;
|
|
cmdiocb->iocb_cmpl(phba, cmdiocb, rspiocb);
|
|
|
|
atomic_dec(&phba->fabric_iocb_count);
|
|
if (!test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags)) {
|
|
/* Post any pending iocbs to HBA */
|
|
lpfc_resume_fabric_iocbs(phba);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* lpfc_issue_fabric_iocb - Issue a fabric iocb command
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @iocb: pointer to lpfc command iocb data structure.
|
|
*
|
|
* This routine is used as the top-level API for issuing a fabric iocb command
|
|
* such as FLOGI and FDISC. To accommodate certain switch fabric, this driver
|
|
* function makes sure that only one fabric bound iocb will be outstanding at
|
|
* any given time. As such, this function will first check to see whether there
|
|
* is already an outstanding fabric iocb on the wire. If so, it will put the
|
|
* newly issued iocb onto the driver internal fabric iocb list, waiting to be
|
|
* issued later. Otherwise, it will issue the iocb on the wire and update the
|
|
* fabric iocb count it indicate that there is one fabric iocb on the wire.
|
|
*
|
|
* Note, this implementation has a potential sending out fabric IOCBs out of
|
|
* order. The problem is caused by the construction of the "ready" boolen does
|
|
* not include the condition that the internal fabric IOCB list is empty. As
|
|
* such, it is possible a fabric IOCB issued by this routine might be "jump"
|
|
* ahead of the fabric IOCBs in the internal list.
|
|
*
|
|
* Return code
|
|
* IOCB_SUCCESS - either fabric iocb put on the list or issued successfully
|
|
* IOCB_ERROR - failed to issue fabric iocb
|
|
**/
|
|
static int
|
|
lpfc_issue_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *iocb)
|
|
{
|
|
unsigned long iflags;
|
|
int ready;
|
|
int ret;
|
|
|
|
if (atomic_read(&phba->fabric_iocb_count) > 1)
|
|
BUG();
|
|
|
|
spin_lock_irqsave(&phba->hbalock, iflags);
|
|
ready = atomic_read(&phba->fabric_iocb_count) == 0 &&
|
|
!test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
|
|
|
|
if (ready)
|
|
/* Increment fabric iocb count to hold the position */
|
|
atomic_inc(&phba->fabric_iocb_count);
|
|
spin_unlock_irqrestore(&phba->hbalock, iflags);
|
|
if (ready) {
|
|
iocb->fabric_iocb_cmpl = iocb->iocb_cmpl;
|
|
iocb->iocb_cmpl = lpfc_cmpl_fabric_iocb;
|
|
iocb->iocb_flag |= LPFC_IO_FABRIC;
|
|
|
|
lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD,
|
|
"Fabric sched2: ste:x%x",
|
|
iocb->vport->port_state, 0, 0);
|
|
|
|
ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocb, 0);
|
|
|
|
if (ret == IOCB_ERROR) {
|
|
iocb->iocb_cmpl = iocb->fabric_iocb_cmpl;
|
|
iocb->fabric_iocb_cmpl = NULL;
|
|
iocb->iocb_flag &= ~LPFC_IO_FABRIC;
|
|
atomic_dec(&phba->fabric_iocb_count);
|
|
}
|
|
} else {
|
|
spin_lock_irqsave(&phba->hbalock, iflags);
|
|
list_add_tail(&iocb->list, &phba->fabric_iocb_list);
|
|
spin_unlock_irqrestore(&phba->hbalock, iflags);
|
|
ret = IOCB_SUCCESS;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* lpfc_fabric_abort_vport - Abort a vport's iocbs from driver fabric iocb list
|
|
* @vport: pointer to a virtual N_Port data structure.
|
|
*
|
|
* This routine aborts all the IOCBs associated with a @vport from the
|
|
* driver internal fabric IOCB list. The list contains fabric IOCBs to be
|
|
* issued to the ELS IOCB ring. This abort function walks the fabric IOCB
|
|
* list, removes each IOCB associated with the @vport off the list, set the
|
|
* status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function
|
|
* associated with the IOCB.
|
|
**/
|
|
static void lpfc_fabric_abort_vport(struct lpfc_vport *vport)
|
|
{
|
|
LIST_HEAD(completions);
|
|
struct lpfc_hba *phba = vport->phba;
|
|
struct lpfc_iocbq *tmp_iocb, *piocb;
|
|
|
|
spin_lock_irq(&phba->hbalock);
|
|
list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list,
|
|
list) {
|
|
|
|
if (piocb->vport != vport)
|
|
continue;
|
|
|
|
list_move_tail(&piocb->list, &completions);
|
|
}
|
|
spin_unlock_irq(&phba->hbalock);
|
|
|
|
/* Cancel all the IOCBs from the completions list */
|
|
lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
|
|
IOERR_SLI_ABORTED);
|
|
}
|
|
|
|
/**
|
|
* lpfc_fabric_abort_nport - Abort a ndlp's iocbs from driver fabric iocb list
|
|
* @ndlp: pointer to a node-list data structure.
|
|
*
|
|
* This routine aborts all the IOCBs associated with an @ndlp from the
|
|
* driver internal fabric IOCB list. The list contains fabric IOCBs to be
|
|
* issued to the ELS IOCB ring. This abort function walks the fabric IOCB
|
|
* list, removes each IOCB associated with the @ndlp off the list, set the
|
|
* status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function
|
|
* associated with the IOCB.
|
|
**/
|
|
void lpfc_fabric_abort_nport(struct lpfc_nodelist *ndlp)
|
|
{
|
|
LIST_HEAD(completions);
|
|
struct lpfc_hba *phba = ndlp->phba;
|
|
struct lpfc_iocbq *tmp_iocb, *piocb;
|
|
struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
|
|
|
|
spin_lock_irq(&phba->hbalock);
|
|
list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list,
|
|
list) {
|
|
if ((lpfc_check_sli_ndlp(phba, pring, piocb, ndlp))) {
|
|
|
|
list_move_tail(&piocb->list, &completions);
|
|
}
|
|
}
|
|
spin_unlock_irq(&phba->hbalock);
|
|
|
|
/* Cancel all the IOCBs from the completions list */
|
|
lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
|
|
IOERR_SLI_ABORTED);
|
|
}
|
|
|
|
/**
|
|
* lpfc_fabric_abort_hba - Abort all iocbs on driver fabric iocb list
|
|
* @phba: pointer to lpfc hba data structure.
|
|
*
|
|
* This routine aborts all the IOCBs currently on the driver internal
|
|
* fabric IOCB list. The list contains fabric IOCBs to be issued to the ELS
|
|
* IOCB ring. This function takes the entire IOCB list off the fabric IOCB
|
|
* list, removes IOCBs off the list, set the status feild to
|
|
* IOSTAT_LOCAL_REJECT, and invokes the callback function associated with
|
|
* the IOCB.
|
|
**/
|
|
void lpfc_fabric_abort_hba(struct lpfc_hba *phba)
|
|
{
|
|
LIST_HEAD(completions);
|
|
|
|
spin_lock_irq(&phba->hbalock);
|
|
list_splice_init(&phba->fabric_iocb_list, &completions);
|
|
spin_unlock_irq(&phba->hbalock);
|
|
|
|
/* Cancel all the IOCBs from the completions list */
|
|
lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
|
|
IOERR_SLI_ABORTED);
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_vport_delete_els_xri_aborted -Remove all ndlp references for vport
|
|
* @vport: pointer to lpfc vport data structure.
|
|
*
|
|
* This routine is invoked by the vport cleanup for deletions and the cleanup
|
|
* for an ndlp on removal.
|
|
**/
|
|
void
|
|
lpfc_sli4_vport_delete_els_xri_aborted(struct lpfc_vport *vport)
|
|
{
|
|
struct lpfc_hba *phba = vport->phba;
|
|
struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
|
|
unsigned long iflag = 0;
|
|
|
|
spin_lock_irqsave(&phba->hbalock, iflag);
|
|
spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
|
|
list_for_each_entry_safe(sglq_entry, sglq_next,
|
|
&phba->sli4_hba.lpfc_abts_els_sgl_list, list) {
|
|
if (sglq_entry->ndlp && sglq_entry->ndlp->vport == vport)
|
|
sglq_entry->ndlp = NULL;
|
|
}
|
|
spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
|
|
spin_unlock_irqrestore(&phba->hbalock, iflag);
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_els_xri_aborted - Slow-path process of els xri abort
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @axri: pointer to the els xri abort wcqe structure.
|
|
*
|
|
* This routine is invoked by the worker thread to process a SLI4 slow-path
|
|
* ELS aborted xri.
|
|
**/
|
|
void
|
|
lpfc_sli4_els_xri_aborted(struct lpfc_hba *phba,
|
|
struct sli4_wcqe_xri_aborted *axri)
|
|
{
|
|
uint16_t xri = bf_get(lpfc_wcqe_xa_xri, axri);
|
|
uint16_t rxid = bf_get(lpfc_wcqe_xa_remote_xid, axri);
|
|
uint16_t lxri = 0;
|
|
|
|
struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
|
|
unsigned long iflag = 0;
|
|
struct lpfc_nodelist *ndlp;
|
|
struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
|
|
|
|
spin_lock_irqsave(&phba->hbalock, iflag);
|
|
spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
|
|
list_for_each_entry_safe(sglq_entry, sglq_next,
|
|
&phba->sli4_hba.lpfc_abts_els_sgl_list, list) {
|
|
if (sglq_entry->sli4_xritag == xri) {
|
|
list_del(&sglq_entry->list);
|
|
ndlp = sglq_entry->ndlp;
|
|
sglq_entry->ndlp = NULL;
|
|
spin_lock(&pring->ring_lock);
|
|
list_add_tail(&sglq_entry->list,
|
|
&phba->sli4_hba.lpfc_sgl_list);
|
|
sglq_entry->state = SGL_FREED;
|
|
spin_unlock(&pring->ring_lock);
|
|
spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
|
|
spin_unlock_irqrestore(&phba->hbalock, iflag);
|
|
lpfc_set_rrq_active(phba, ndlp,
|
|
sglq_entry->sli4_lxritag,
|
|
rxid, 1);
|
|
|
|
/* Check if TXQ queue needs to be serviced */
|
|
if (!(list_empty(&pring->txq)))
|
|
lpfc_worker_wake_up(phba);
|
|
return;
|
|
}
|
|
}
|
|
spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
|
|
lxri = lpfc_sli4_xri_inrange(phba, xri);
|
|
if (lxri == NO_XRI) {
|
|
spin_unlock_irqrestore(&phba->hbalock, iflag);
|
|
return;
|
|
}
|
|
spin_lock(&pring->ring_lock);
|
|
sglq_entry = __lpfc_get_active_sglq(phba, lxri);
|
|
if (!sglq_entry || (sglq_entry->sli4_xritag != xri)) {
|
|
spin_unlock(&pring->ring_lock);
|
|
spin_unlock_irqrestore(&phba->hbalock, iflag);
|
|
return;
|
|
}
|
|
sglq_entry->state = SGL_XRI_ABORTED;
|
|
spin_unlock(&pring->ring_lock);
|
|
spin_unlock_irqrestore(&phba->hbalock, iflag);
|
|
return;
|
|
}
|
|
|
|
/* lpfc_sli_abts_recover_port - Recover a port that failed a BLS_ABORT req.
|
|
* @vport: pointer to virtual port object.
|
|
* @ndlp: nodelist pointer for the impacted node.
|
|
*
|
|
* The driver calls this routine in response to an SLI4 XRI ABORT CQE
|
|
* or an SLI3 ASYNC_STATUS_CN event from the port. For either event,
|
|
* the driver is required to send a LOGO to the remote node before it
|
|
* attempts to recover its login to the remote node.
|
|
*/
|
|
void
|
|
lpfc_sli_abts_recover_port(struct lpfc_vport *vport,
|
|
struct lpfc_nodelist *ndlp)
|
|
{
|
|
struct Scsi_Host *shost;
|
|
struct lpfc_hba *phba;
|
|
unsigned long flags = 0;
|
|
|
|
shost = lpfc_shost_from_vport(vport);
|
|
phba = vport->phba;
|
|
if (ndlp->nlp_state != NLP_STE_MAPPED_NODE) {
|
|
lpfc_printf_log(phba, KERN_INFO,
|
|
LOG_SLI, "3093 No rport recovery needed. "
|
|
"rport in state 0x%x\n", ndlp->nlp_state);
|
|
return;
|
|
}
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
|
|
"3094 Start rport recovery on shost id 0x%x "
|
|
"fc_id 0x%06x vpi 0x%x rpi 0x%x state 0x%x "
|
|
"flags 0x%x\n",
|
|
shost->host_no, ndlp->nlp_DID,
|
|
vport->vpi, ndlp->nlp_rpi, ndlp->nlp_state,
|
|
ndlp->nlp_flag);
|
|
/*
|
|
* The rport is not responding. Remove the FCP-2 flag to prevent
|
|
* an ADISC in the follow-up recovery code.
|
|
*/
|
|
spin_lock_irqsave(shost->host_lock, flags);
|
|
ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
|
|
spin_unlock_irqrestore(shost->host_lock, flags);
|
|
lpfc_issue_els_logo(vport, ndlp, 0);
|
|
lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE);
|
|
}
|
|
|