e8b62011d8
Rework the lpfc_printf_log() macro so that logging is enabled on a per-vport basis. Used to be on a physical-port basis, thus logging with large numbers of vports became a mess. Required redefinition of the macro, and an update of every use. Signed-off-by: James Smart <James.Smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
560 lines
16 KiB
C
560 lines
16 KiB
C
/*******************************************************************
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* This file is part of the Emulex Linux Device Driver for *
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* Fibre Channel Host Bus Adapters. *
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* Copyright (C) 2004-2006 Emulex. All rights reserved. *
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* EMULEX and SLI are trademarks of Emulex. *
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* www.emulex.com *
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* Portions Copyright (C) 2004-2005 Christoph Hellwig *
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* *
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* This program is free software; you can redistribute it and/or *
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* modify it under the terms of version 2 of the GNU General *
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* Public License as published by the Free Software Foundation. *
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* This program is distributed in the hope that it will be useful. *
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* ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
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* WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
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* FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
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* DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
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* TO BE LEGALLY INVALID. See the GNU General Public License for *
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* more details, a copy of which can be found in the file COPYING *
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* included with this package. *
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*******************************************************************/
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#include <linux/blkdev.h>
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#include <linux/delay.h>
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#include <linux/dma-mapping.h>
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#include <linux/idr.h>
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#include <linux/interrupt.h>
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#include <linux/kthread.h>
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#include <linux/pci.h>
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#include <linux/spinlock.h>
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#include <scsi/scsi.h>
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#include <scsi/scsi_device.h>
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#include <scsi/scsi_host.h>
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#include <scsi/scsi_transport_fc.h>
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#include "lpfc_hw.h"
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#include "lpfc_sli.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_version.h"
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#include "lpfc_vport.h"
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inline void lpfc_vport_set_state(struct lpfc_vport *vport,
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enum fc_vport_state new_state)
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{
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struct fc_vport *fc_vport = vport->fc_vport;
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if (fc_vport) {
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/*
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* When the transport defines fc_vport_set state we will replace
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* this code with the following line
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*/
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/* fc_vport_set_state(fc_vport, new_state); */
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if (new_state != FC_VPORT_INITIALIZING)
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fc_vport->vport_last_state = fc_vport->vport_state;
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fc_vport->vport_state = new_state;
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}
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/* for all the error states we will set the invternal state to FAILED */
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switch (new_state) {
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case FC_VPORT_NO_FABRIC_SUPP:
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case FC_VPORT_NO_FABRIC_RSCS:
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case FC_VPORT_FABRIC_LOGOUT:
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case FC_VPORT_FABRIC_REJ_WWN:
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case FC_VPORT_FAILED:
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vport->port_state = LPFC_VPORT_FAILED;
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break;
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case FC_VPORT_LINKDOWN:
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vport->port_state = LPFC_VPORT_UNKNOWN;
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break;
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default:
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/* do nothing */
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break;
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}
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}
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static int
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lpfc_alloc_vpi(struct lpfc_hba *phba)
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{
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int vpi;
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spin_lock_irq(&phba->hbalock);
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/* Start at bit 1 because vpi zero is reserved for the physical port */
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vpi = find_next_zero_bit(phba->vpi_bmask, (phba->max_vpi + 1), 1);
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if (vpi > phba->max_vpi)
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vpi = 0;
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else
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set_bit(vpi, phba->vpi_bmask);
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spin_unlock_irq(&phba->hbalock);
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return vpi;
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}
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static void
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lpfc_free_vpi(struct lpfc_hba *phba, int vpi)
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{
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spin_lock_irq(&phba->hbalock);
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clear_bit(vpi, phba->vpi_bmask);
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spin_unlock_irq(&phba->hbalock);
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}
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static int
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lpfc_vport_sparm(struct lpfc_hba *phba, struct lpfc_vport *vport)
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{
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LPFC_MBOXQ_t *pmb;
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MAILBOX_t *mb;
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struct lpfc_dmabuf *mp;
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int rc;
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pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
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if (!pmb) {
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return -ENOMEM;
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}
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mb = &pmb->mb;
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lpfc_read_sparam(phba, pmb, vport->vpi);
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/*
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* Grab buffer pointer and clear context1 so we can use
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* lpfc_sli_issue_box_wait
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*/
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mp = (struct lpfc_dmabuf *) pmb->context1;
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pmb->context1 = NULL;
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pmb->vport = vport;
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rc = lpfc_sli_issue_mbox_wait(phba, pmb, phba->fc_ratov * 2);
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if (rc != MBX_SUCCESS) {
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lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT | LOG_VPORT,
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"1818 VPort failed init, mbxCmd x%x "
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"READ_SPARM mbxStatus x%x, rc = x%x\n",
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mb->mbxCommand, mb->mbxStatus, rc);
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lpfc_mbuf_free(phba, mp->virt, mp->phys);
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kfree(mp);
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if (rc != MBX_TIMEOUT)
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mempool_free(pmb, phba->mbox_mem_pool);
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return -EIO;
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}
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memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
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memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
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sizeof (struct lpfc_name));
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memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
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sizeof (struct lpfc_name));
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lpfc_mbuf_free(phba, mp->virt, mp->phys);
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kfree(mp);
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mempool_free(pmb, phba->mbox_mem_pool);
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return 0;
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}
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static int
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lpfc_valid_wwn_format(struct lpfc_hba *phba, struct lpfc_name *wwn,
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const char *name_type)
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{
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/* ensure that IEEE format 1 addresses
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* contain zeros in bits 59-48
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*/
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if (!((wwn->u.wwn[0] >> 4) == 1 &&
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((wwn->u.wwn[0] & 0xf) != 0 || (wwn->u.wwn[1] & 0xf) != 0)))
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return 1;
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lpfc_printf_log(phba, KERN_ERR, LOG_VPORT,
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"1822 Invalid %s: %02x:%02x:%02x:%02x:"
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"%02x:%02x:%02x:%02x\n",
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name_type,
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wwn->u.wwn[0], wwn->u.wwn[1],
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wwn->u.wwn[2], wwn->u.wwn[3],
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wwn->u.wwn[4], wwn->u.wwn[5],
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wwn->u.wwn[6], wwn->u.wwn[7]);
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return 0;
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}
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static int
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lpfc_unique_wwpn(struct lpfc_hba *phba, struct lpfc_vport *new_vport)
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{
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struct lpfc_vport *vport;
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unsigned long flags;
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spin_lock_irqsave(&phba->hbalock, flags);
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list_for_each_entry(vport, &phba->port_list, listentry) {
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if (vport == new_vport)
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continue;
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/* If they match, return not unique */
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if (memcmp(&vport->fc_sparam.portName,
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&new_vport->fc_sparam.portName,
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sizeof(struct lpfc_name)) == 0) {
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spin_unlock_irqrestore(&phba->hbalock, flags);
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return 0;
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}
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}
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spin_unlock_irqrestore(&phba->hbalock, flags);
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return 1;
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}
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int
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lpfc_vport_create(struct fc_vport *fc_vport, bool disable)
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{
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struct lpfc_nodelist *ndlp;
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struct Scsi_Host *shost = fc_vport->shost;
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struct lpfc_vport *pport = (struct lpfc_vport *) shost->hostdata;
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struct lpfc_hba *phba = pport->phba;
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struct lpfc_vport *vport = NULL;
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int instance;
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int vpi;
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int rc = VPORT_ERROR;
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if ((phba->sli_rev < 3) ||
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!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) {
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lpfc_printf_log(phba, KERN_ERR, LOG_VPORT,
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"1808 Create VPORT failed: "
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"NPIV is not enabled: SLImode:%d\n",
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phba->sli_rev);
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rc = VPORT_INVAL;
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goto error_out;
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}
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vpi = lpfc_alloc_vpi(phba);
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if (vpi == 0) {
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lpfc_printf_log(phba, KERN_ERR, LOG_VPORT,
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"1809 Create VPORT failed: "
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"Max VPORTs (%d) exceeded\n",
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phba->max_vpi);
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rc = VPORT_NORESOURCES;
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goto error_out;
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}
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/* Assign an unused board number */
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if ((instance = lpfc_get_instance()) < 0) {
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lpfc_printf_log(phba, KERN_ERR, LOG_VPORT,
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"1810 Create VPORT failed: Cannot get "
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"instance number\n");
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lpfc_free_vpi(phba, vpi);
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rc = VPORT_NORESOURCES;
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goto error_out;
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}
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vport = lpfc_create_port(phba, instance, &fc_vport->dev);
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if (!vport) {
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lpfc_printf_log(phba, KERN_ERR, LOG_VPORT,
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"1811 Create VPORT failed: vpi x%x\n", vpi);
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lpfc_free_vpi(phba, vpi);
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rc = VPORT_NORESOURCES;
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goto error_out;
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}
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vport->vpi = vpi;
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lpfc_debugfs_initialize(vport);
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if (lpfc_vport_sparm(phba, vport)) {
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lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT,
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"1813 Create VPORT failed. "
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"Cannot get sparam\n");
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lpfc_free_vpi(phba, vpi);
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destroy_port(vport);
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rc = VPORT_NORESOURCES;
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goto error_out;
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}
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memcpy(vport->fc_portname.u.wwn, vport->fc_sparam.portName.u.wwn, 8);
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memcpy(vport->fc_nodename.u.wwn, vport->fc_sparam.nodeName.u.wwn, 8);
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if (fc_vport->node_name != 0)
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u64_to_wwn(fc_vport->node_name, vport->fc_nodename.u.wwn);
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if (fc_vport->port_name != 0)
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u64_to_wwn(fc_vport->port_name, vport->fc_portname.u.wwn);
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memcpy(&vport->fc_sparam.portName, vport->fc_portname.u.wwn, 8);
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memcpy(&vport->fc_sparam.nodeName, vport->fc_nodename.u.wwn, 8);
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if (!lpfc_valid_wwn_format(phba, &vport->fc_sparam.nodeName, "WWNN") ||
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!lpfc_valid_wwn_format(phba, &vport->fc_sparam.portName, "WWPN")) {
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lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT,
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"1821 Create VPORT failed. "
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"Invalid WWN format\n");
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lpfc_free_vpi(phba, vpi);
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destroy_port(vport);
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rc = VPORT_INVAL;
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goto error_out;
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}
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if (!lpfc_unique_wwpn(phba, vport)) {
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lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT,
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"1823 Create VPORT failed. "
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"Duplicate WWN on HBA\n");
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lpfc_free_vpi(phba, vpi);
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destroy_port(vport);
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rc = VPORT_INVAL;
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goto error_out;
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}
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*(struct lpfc_vport **)fc_vport->dd_data = vport;
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vport->fc_vport = fc_vport;
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if ((phba->link_state < LPFC_LINK_UP) ||
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(phba->fc_topology == TOPOLOGY_LOOP)) {
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lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN);
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rc = VPORT_OK;
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goto out;
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}
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if (disable) {
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rc = VPORT_OK;
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goto out;
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}
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/* Use the Physical nodes Fabric NDLP to determine if the link is
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* up and ready to FDISC.
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*/
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ndlp = lpfc_findnode_did(phba->pport, Fabric_DID);
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if (ndlp && ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) {
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if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) {
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lpfc_set_disctmo(vport);
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lpfc_initial_fdisc(vport);
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} else {
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lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP);
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lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
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"0262 No NPIV Fabric support\n");
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}
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} else {
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lpfc_vport_set_state(vport, FC_VPORT_FAILED);
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}
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rc = VPORT_OK;
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out:
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lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT,
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"1825 Vport Created.\n");
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lpfc_host_attrib_init(lpfc_shost_from_vport(vport));
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error_out:
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return rc;
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}
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int
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disable_vport(struct fc_vport *fc_vport)
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{
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struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data;
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struct lpfc_hba *phba = vport->phba;
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struct lpfc_nodelist *ndlp = NULL, *next_ndlp = NULL;
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long timeout;
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ndlp = lpfc_findnode_did(vport, Fabric_DID);
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if (ndlp && phba->link_state >= LPFC_LINK_UP) {
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vport->unreg_vpi_cmpl = VPORT_INVAL;
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timeout = msecs_to_jiffies(phba->fc_ratov * 2000);
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if (!lpfc_issue_els_npiv_logo(vport, ndlp))
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while (vport->unreg_vpi_cmpl == VPORT_INVAL && timeout)
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timeout = schedule_timeout(timeout);
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}
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lpfc_sli_host_down(vport);
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/* Mark all nodes for discovery so we can remove them by
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* calling lpfc_cleanup_rpis(vport, 1)
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*/
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list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
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if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
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continue;
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lpfc_disc_state_machine(vport, ndlp, NULL,
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NLP_EVT_DEVICE_RECOVERY);
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}
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lpfc_cleanup_rpis(vport, 1);
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lpfc_stop_vport_timers(vport);
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lpfc_unreg_all_rpis(vport);
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lpfc_unreg_default_rpis(vport);
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/*
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* Completion of unreg_vpi (lpfc_mbx_cmpl_unreg_vpi) does the
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* scsi_host_put() to release the vport.
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*/
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lpfc_mbx_unreg_vpi(vport);
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lpfc_vport_set_state(vport, FC_VPORT_DISABLED);
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lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT,
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"1826 Vport Disabled.\n");
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return VPORT_OK;
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}
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int
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enable_vport(struct fc_vport *fc_vport)
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{
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struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data;
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struct lpfc_hba *phba = vport->phba;
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struct lpfc_nodelist *ndlp = NULL;
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if ((phba->link_state < LPFC_LINK_UP) ||
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(phba->fc_topology == TOPOLOGY_LOOP)) {
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lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN);
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return VPORT_OK;
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}
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vport->load_flag |= FC_LOADING;
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vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
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/* Use the Physical nodes Fabric NDLP to determine if the link is
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* up and ready to FDISC.
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*/
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ndlp = lpfc_findnode_did(phba->pport, Fabric_DID);
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if (ndlp && ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) {
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if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) {
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lpfc_set_disctmo(vport);
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lpfc_initial_fdisc(vport);
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} else {
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lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP);
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lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
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"0264 No NPIV Fabric support\n");
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}
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} else {
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lpfc_vport_set_state(vport, FC_VPORT_FAILED);
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}
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lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT,
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"1827 Vport Enabled.\n");
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return VPORT_OK;
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}
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int
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lpfc_vport_disable(struct fc_vport *fc_vport, bool disable)
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{
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if (disable)
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return disable_vport(fc_vport);
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else
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return enable_vport(fc_vport);
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}
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int
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lpfc_vport_delete(struct fc_vport *fc_vport)
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{
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struct lpfc_nodelist *ndlp = NULL;
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struct lpfc_nodelist *next_ndlp;
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struct Scsi_Host *shost = (struct Scsi_Host *) fc_vport->shost;
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struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data;
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struct lpfc_hba *phba = vport->phba;
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long timeout;
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int rc = VPORT_ERROR;
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/*
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* This is a bit of a mess. We want to ensure the shost doesn't get
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* torn down until we're done with the embedded lpfc_vport structure.
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*
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* Beyond holding a reference for this function, we also need a
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* reference for outstanding I/O requests we schedule during delete
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* processing. But once we scsi_remove_host() we can no longer obtain
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* a reference through scsi_host_get().
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*
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* So we take two references here. We release one reference at the
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* bottom of the function -- after delinking the vport. And we
|
|
* release the other at the completion of the unreg_vpi that get's
|
|
* initiated after we've disposed of all other resources associated
|
|
* with the port.
|
|
*/
|
|
if (!scsi_host_get(shost) || !scsi_host_get(shost))
|
|
return VPORT_INVAL;
|
|
|
|
if (vport->port_type == LPFC_PHYSICAL_PORT) {
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT,
|
|
"1812 vport_delete failed: Cannot delete "
|
|
"physical host\n");
|
|
goto out;
|
|
}
|
|
|
|
vport->load_flag |= FC_UNLOADING;
|
|
|
|
kfree(vport->vname);
|
|
lpfc_debugfs_terminate(vport);
|
|
fc_remove_host(lpfc_shost_from_vport(vport));
|
|
scsi_remove_host(lpfc_shost_from_vport(vport));
|
|
|
|
ndlp = lpfc_findnode_did(phba->pport, Fabric_DID);
|
|
if (ndlp && ndlp->nlp_state == NLP_STE_UNMAPPED_NODE &&
|
|
phba->link_state >= LPFC_LINK_UP) {
|
|
|
|
/* First look for the Fabric ndlp */
|
|
ndlp = lpfc_findnode_did(vport, Fabric_DID);
|
|
if (!ndlp) {
|
|
/* Cannot find existing Fabric ndlp, allocate one */
|
|
ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
|
|
if (!ndlp)
|
|
goto skip_logo;
|
|
lpfc_nlp_init(vport, ndlp, Fabric_DID);
|
|
} else {
|
|
lpfc_dequeue_node(vport, ndlp);
|
|
}
|
|
vport->unreg_vpi_cmpl = VPORT_INVAL;
|
|
timeout = msecs_to_jiffies(phba->fc_ratov * 2000);
|
|
if (!lpfc_issue_els_npiv_logo(vport, ndlp))
|
|
while (vport->unreg_vpi_cmpl == VPORT_INVAL && timeout)
|
|
timeout = schedule_timeout(timeout);
|
|
}
|
|
|
|
skip_logo:
|
|
lpfc_sli_host_down(vport);
|
|
|
|
list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
|
|
lpfc_disc_state_machine(vport, ndlp, NULL,
|
|
NLP_EVT_DEVICE_RECOVERY);
|
|
lpfc_disc_state_machine(vport, ndlp, NULL,
|
|
NLP_EVT_DEVICE_RM);
|
|
}
|
|
|
|
lpfc_stop_vport_timers(vport);
|
|
lpfc_unreg_all_rpis(vport);
|
|
lpfc_unreg_default_rpis(vport);
|
|
/*
|
|
* Completion of unreg_vpi (lpfc_mbx_cmpl_unreg_vpi) does the
|
|
* scsi_host_put() to release the vport.
|
|
*/
|
|
lpfc_mbx_unreg_vpi(vport);
|
|
|
|
lpfc_free_vpi(phba, vport->vpi);
|
|
vport->work_port_events = 0;
|
|
spin_lock_irq(&phba->hbalock);
|
|
list_del_init(&vport->listentry);
|
|
spin_unlock_irq(&phba->hbalock);
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT,
|
|
"1828 Vport Deleted.\n");
|
|
rc = VPORT_OK;
|
|
out:
|
|
scsi_host_put(shost);
|
|
return rc;
|
|
}
|
|
|
|
EXPORT_SYMBOL(lpfc_vport_create);
|
|
EXPORT_SYMBOL(lpfc_vport_delete);
|
|
|
|
struct lpfc_vport **
|
|
lpfc_create_vport_work_array(struct lpfc_hba *phba)
|
|
{
|
|
struct lpfc_vport *port_iterator;
|
|
struct lpfc_vport **vports;
|
|
int index = 0;
|
|
vports = kzalloc(LPFC_MAX_VPORTS * sizeof(struct lpfc_vport *),
|
|
GFP_KERNEL);
|
|
if (vports == NULL)
|
|
return NULL;
|
|
spin_lock_irq(&phba->hbalock);
|
|
list_for_each_entry(port_iterator, &phba->port_list, listentry) {
|
|
if (!scsi_host_get(lpfc_shost_from_vport(port_iterator))) {
|
|
lpfc_printf_vlog(port_iterator, KERN_ERR, LOG_VPORT,
|
|
"1801 Create vport work array FAILED: "
|
|
"cannot do scsi_host_get\n");
|
|
continue;
|
|
}
|
|
vports[index++] = port_iterator;
|
|
}
|
|
spin_unlock_irq(&phba->hbalock);
|
|
return vports;
|
|
}
|
|
|
|
void
|
|
lpfc_destroy_vport_work_array(struct lpfc_vport **vports)
|
|
{
|
|
int i;
|
|
if (vports == NULL)
|
|
return;
|
|
for (i=0; vports[i] != NULL && i < LPFC_MAX_VPORTS; i++)
|
|
scsi_host_put(lpfc_shost_from_vport(vports[i]));
|
|
kfree(vports);
|
|
}
|