1598 lines
45 KiB
C
1598 lines
45 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/ctype.h>
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#include <linux/pci.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_tcq.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_version.h"
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#include "lpfc_compat.h"
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#include "lpfc_crtn.h"
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static void
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lpfc_jedec_to_ascii(int incr, char hdw[])
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{
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int i, j;
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for (i = 0; i < 8; i++) {
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j = (incr & 0xf);
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if (j <= 9)
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hdw[7 - i] = 0x30 + j;
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else
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hdw[7 - i] = 0x61 + j - 10;
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incr = (incr >> 4);
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}
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hdw[8] = 0;
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return;
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}
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static ssize_t
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lpfc_drvr_version_show(struct class_device *cdev, char *buf)
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{
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return snprintf(buf, PAGE_SIZE, LPFC_MODULE_DESC "\n");
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}
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static ssize_t
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management_version_show(struct class_device *cdev, char *buf)
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{
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return snprintf(buf, PAGE_SIZE, DFC_API_VERSION "\n");
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}
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static ssize_t
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lpfc_info_show(struct class_device *cdev, char *buf)
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{
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struct Scsi_Host *host = class_to_shost(cdev);
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return snprintf(buf, PAGE_SIZE, "%s\n",lpfc_info(host));
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}
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static ssize_t
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lpfc_serialnum_show(struct class_device *cdev, char *buf)
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{
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struct Scsi_Host *host = class_to_shost(cdev);
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struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
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return snprintf(buf, PAGE_SIZE, "%s\n",phba->SerialNumber);
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}
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static ssize_t
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lpfc_modeldesc_show(struct class_device *cdev, char *buf)
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{
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struct Scsi_Host *host = class_to_shost(cdev);
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struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
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return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelDesc);
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}
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static ssize_t
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lpfc_modelname_show(struct class_device *cdev, char *buf)
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{
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struct Scsi_Host *host = class_to_shost(cdev);
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struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
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return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelName);
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}
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static ssize_t
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lpfc_programtype_show(struct class_device *cdev, char *buf)
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{
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struct Scsi_Host *host = class_to_shost(cdev);
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struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
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return snprintf(buf, PAGE_SIZE, "%s\n",phba->ProgramType);
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}
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static ssize_t
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lpfc_portnum_show(struct class_device *cdev, char *buf)
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{
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struct Scsi_Host *host = class_to_shost(cdev);
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struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
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return snprintf(buf, PAGE_SIZE, "%s\n",phba->Port);
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}
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static ssize_t
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lpfc_fwrev_show(struct class_device *cdev, char *buf)
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{
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struct Scsi_Host *host = class_to_shost(cdev);
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struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
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char fwrev[32];
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lpfc_decode_firmware_rev(phba, fwrev, 1);
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return snprintf(buf, PAGE_SIZE, "%s\n",fwrev);
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}
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static ssize_t
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lpfc_hdw_show(struct class_device *cdev, char *buf)
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{
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char hdw[9];
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struct Scsi_Host *host = class_to_shost(cdev);
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struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
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lpfc_vpd_t *vp = &phba->vpd;
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lpfc_jedec_to_ascii(vp->rev.biuRev, hdw);
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return snprintf(buf, PAGE_SIZE, "%s\n", hdw);
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}
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static ssize_t
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lpfc_option_rom_version_show(struct class_device *cdev, char *buf)
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{
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struct Scsi_Host *host = class_to_shost(cdev);
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struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
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return snprintf(buf, PAGE_SIZE, "%s\n", phba->OptionROMVersion);
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}
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static ssize_t
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lpfc_state_show(struct class_device *cdev, char *buf)
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{
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struct Scsi_Host *host = class_to_shost(cdev);
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struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
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int len = 0;
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switch (phba->hba_state) {
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case LPFC_STATE_UNKNOWN:
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case LPFC_WARM_START:
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case LPFC_INIT_START:
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case LPFC_INIT_MBX_CMDS:
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case LPFC_LINK_DOWN:
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len += snprintf(buf + len, PAGE_SIZE-len, "Link Down\n");
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break;
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case LPFC_LINK_UP:
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case LPFC_LOCAL_CFG_LINK:
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len += snprintf(buf + len, PAGE_SIZE-len, "Link Up\n");
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break;
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case LPFC_FLOGI:
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case LPFC_FABRIC_CFG_LINK:
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case LPFC_NS_REG:
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case LPFC_NS_QRY:
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case LPFC_BUILD_DISC_LIST:
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case LPFC_DISC_AUTH:
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case LPFC_CLEAR_LA:
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len += snprintf(buf + len, PAGE_SIZE-len,
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"Link Up - Discovery\n");
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break;
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case LPFC_HBA_READY:
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len += snprintf(buf + len, PAGE_SIZE-len,
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"Link Up - Ready:\n");
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if (phba->fc_topology == TOPOLOGY_LOOP) {
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if (phba->fc_flag & FC_PUBLIC_LOOP)
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len += snprintf(buf + len, PAGE_SIZE-len,
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" Public Loop\n");
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else
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len += snprintf(buf + len, PAGE_SIZE-len,
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" Private Loop\n");
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} else {
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if (phba->fc_flag & FC_FABRIC)
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len += snprintf(buf + len, PAGE_SIZE-len,
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" Fabric\n");
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else
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len += snprintf(buf + len, PAGE_SIZE-len,
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" Point-2-Point\n");
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}
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}
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return len;
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}
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static ssize_t
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lpfc_num_discovered_ports_show(struct class_device *cdev, char *buf)
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{
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struct Scsi_Host *host = class_to_shost(cdev);
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struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
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return snprintf(buf, PAGE_SIZE, "%d\n", phba->fc_map_cnt +
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phba->fc_unmap_cnt);
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}
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static int
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lpfc_issue_lip(struct Scsi_Host *host)
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{
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struct lpfc_hba *phba = (struct lpfc_hba *) host->hostdata;
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LPFC_MBOXQ_t *pmboxq;
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int mbxstatus = MBXERR_ERROR;
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if ((phba->fc_flag & FC_OFFLINE_MODE) ||
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(phba->hba_state != LPFC_HBA_READY))
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return -EPERM;
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pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL);
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if (!pmboxq)
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return -ENOMEM;
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memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
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pmboxq->mb.mbxCommand = MBX_DOWN_LINK;
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pmboxq->mb.mbxOwner = OWN_HOST;
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mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO * 2);
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if ((mbxstatus == MBX_SUCCESS) && (pmboxq->mb.mbxStatus == 0)) {
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memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
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lpfc_init_link(phba, pmboxq, phba->cfg_topology,
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phba->cfg_link_speed);
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mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq,
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phba->fc_ratov * 2);
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}
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if (mbxstatus == MBX_TIMEOUT)
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pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
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else
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mempool_free(pmboxq, phba->mbox_mem_pool);
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if (mbxstatus == MBXERR_ERROR)
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return -EIO;
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return 0;
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}
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static int
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lpfc_selective_reset(struct lpfc_hba *phba)
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{
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struct completion online_compl;
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int status = 0;
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init_completion(&online_compl);
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lpfc_workq_post_event(phba, &status, &online_compl,
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LPFC_EVT_OFFLINE);
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wait_for_completion(&online_compl);
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if (status != 0)
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return -EIO;
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init_completion(&online_compl);
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lpfc_workq_post_event(phba, &status, &online_compl,
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LPFC_EVT_ONLINE);
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wait_for_completion(&online_compl);
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if (status != 0)
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return -EIO;
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return 0;
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}
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static ssize_t
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lpfc_issue_reset(struct class_device *cdev, const char *buf, size_t count)
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{
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struct Scsi_Host *host = class_to_shost(cdev);
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struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
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int status = -EINVAL;
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if (strncmp(buf, "selective", sizeof("selective") - 1) == 0)
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status = lpfc_selective_reset(phba);
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if (status == 0)
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return strlen(buf);
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else
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return status;
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}
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static ssize_t
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lpfc_nport_evt_cnt_show(struct class_device *cdev, char *buf)
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{
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struct Scsi_Host *host = class_to_shost(cdev);
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struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
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return snprintf(buf, PAGE_SIZE, "%d\n", phba->nport_event_cnt);
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}
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static ssize_t
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lpfc_board_mode_show(struct class_device *cdev, char *buf)
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{
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struct Scsi_Host *host = class_to_shost(cdev);
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struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
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char * state;
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if (phba->hba_state == LPFC_HBA_ERROR)
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state = "error";
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else if (phba->hba_state == LPFC_WARM_START)
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state = "warm start";
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else if (phba->hba_state == LPFC_INIT_START)
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state = "offline";
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else
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state = "online";
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return snprintf(buf, PAGE_SIZE, "%s\n", state);
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}
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static ssize_t
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lpfc_board_mode_store(struct class_device *cdev, const char *buf, size_t count)
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{
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struct Scsi_Host *host = class_to_shost(cdev);
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struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
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struct completion online_compl;
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int status=0;
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init_completion(&online_compl);
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if(strncmp(buf, "online", sizeof("online") - 1) == 0)
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lpfc_workq_post_event(phba, &status, &online_compl,
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LPFC_EVT_ONLINE);
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else if (strncmp(buf, "offline", sizeof("offline") - 1) == 0)
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lpfc_workq_post_event(phba, &status, &online_compl,
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LPFC_EVT_OFFLINE);
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else if (strncmp(buf, "warm", sizeof("warm") - 1) == 0)
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lpfc_workq_post_event(phba, &status, &online_compl,
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LPFC_EVT_WARM_START);
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else if (strncmp(buf, "error", sizeof("error") - 1) == 0)
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lpfc_workq_post_event(phba, &status, &online_compl,
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LPFC_EVT_KILL);
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else
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return -EINVAL;
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wait_for_completion(&online_compl);
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if (!status)
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return strlen(buf);
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else
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return -EIO;
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}
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static ssize_t
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lpfc_poll_show(struct class_device *cdev, char *buf)
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{
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struct Scsi_Host *host = class_to_shost(cdev);
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struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
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return snprintf(buf, PAGE_SIZE, "%#x\n", phba->cfg_poll);
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}
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static ssize_t
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lpfc_poll_store(struct class_device *cdev, const char *buf,
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size_t count)
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{
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struct Scsi_Host *host = class_to_shost(cdev);
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struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
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uint32_t creg_val;
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uint32_t old_val;
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int val=0;
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if (!isdigit(buf[0]))
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return -EINVAL;
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if (sscanf(buf, "%i", &val) != 1)
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return -EINVAL;
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if ((val & 0x3) != val)
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return -EINVAL;
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spin_lock_irq(phba->host->host_lock);
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old_val = phba->cfg_poll;
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if (val & ENABLE_FCP_RING_POLLING) {
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if ((val & DISABLE_FCP_RING_INT) &&
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!(old_val & DISABLE_FCP_RING_INT)) {
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creg_val = readl(phba->HCregaddr);
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creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
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writel(creg_val, phba->HCregaddr);
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readl(phba->HCregaddr); /* flush */
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lpfc_poll_start_timer(phba);
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}
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} else if (val != 0x0) {
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spin_unlock_irq(phba->host->host_lock);
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return -EINVAL;
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}
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if (!(val & DISABLE_FCP_RING_INT) &&
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(old_val & DISABLE_FCP_RING_INT))
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{
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spin_unlock_irq(phba->host->host_lock);
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del_timer(&phba->fcp_poll_timer);
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spin_lock_irq(phba->host->host_lock);
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creg_val = readl(phba->HCregaddr);
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creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
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writel(creg_val, phba->HCregaddr);
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readl(phba->HCregaddr); /* flush */
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}
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phba->cfg_poll = val;
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spin_unlock_irq(phba->host->host_lock);
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return strlen(buf);
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}
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#define lpfc_param_show(attr) \
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static ssize_t \
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lpfc_##attr##_show(struct class_device *cdev, char *buf) \
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{ \
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struct Scsi_Host *host = class_to_shost(cdev);\
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struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;\
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int val = 0;\
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val = phba->cfg_##attr;\
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return snprintf(buf, PAGE_SIZE, "%d\n",\
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phba->cfg_##attr);\
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}
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#define lpfc_param_hex_show(attr) \
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static ssize_t \
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lpfc_##attr##_show(struct class_device *cdev, char *buf) \
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{ \
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struct Scsi_Host *host = class_to_shost(cdev);\
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struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;\
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int val = 0;\
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val = phba->cfg_##attr;\
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return snprintf(buf, PAGE_SIZE, "%#x\n",\
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phba->cfg_##attr);\
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}
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|
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#define lpfc_param_init(attr, default, minval, maxval) \
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static int \
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lpfc_##attr##_init(struct lpfc_hba *phba, int val) \
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{ \
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if (val >= minval && val <= maxval) {\
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phba->cfg_##attr = val;\
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return 0;\
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}\
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lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
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"%d:0449 lpfc_"#attr" attribute cannot be set to %d, "\
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"allowed range is ["#minval", "#maxval"]\n", \
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phba->brd_no, val); \
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phba->cfg_##attr = default;\
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return -EINVAL;\
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}
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|
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#define lpfc_param_set(attr, default, minval, maxval) \
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static int \
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lpfc_##attr##_set(struct lpfc_hba *phba, int val) \
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{ \
|
|
if (val >= minval && val <= maxval) {\
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phba->cfg_##attr = val;\
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return 0;\
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|
}\
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|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
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"%d:0450 lpfc_"#attr" attribute cannot be set to %d, "\
|
|
"allowed range is ["#minval", "#maxval"]\n", \
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phba->brd_no, val); \
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return -EINVAL;\
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|
}
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|
|
#define lpfc_param_store(attr) \
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|
static ssize_t \
|
|
lpfc_##attr##_store(struct class_device *cdev, const char *buf, size_t count) \
|
|
{ \
|
|
struct Scsi_Host *host = class_to_shost(cdev);\
|
|
struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;\
|
|
int val=0;\
|
|
if (!isdigit(buf[0]))\
|
|
return -EINVAL;\
|
|
if (sscanf(buf, "%i", &val) != 1)\
|
|
return -EINVAL;\
|
|
if (lpfc_##attr##_set(phba, val) == 0) \
|
|
return strlen(buf);\
|
|
else \
|
|
return -EINVAL;\
|
|
}
|
|
|
|
#define LPFC_ATTR(name, defval, minval, maxval, desc) \
|
|
static int lpfc_##name = defval;\
|
|
module_param(lpfc_##name, int, 0);\
|
|
MODULE_PARM_DESC(lpfc_##name, desc);\
|
|
lpfc_param_init(name, defval, minval, maxval)
|
|
|
|
#define LPFC_ATTR_R(name, defval, minval, maxval, desc) \
|
|
static int lpfc_##name = defval;\
|
|
module_param(lpfc_##name, int, 0);\
|
|
MODULE_PARM_DESC(lpfc_##name, desc);\
|
|
lpfc_param_show(name)\
|
|
lpfc_param_init(name, defval, minval, maxval)\
|
|
static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
|
|
|
|
#define LPFC_ATTR_RW(name, defval, minval, maxval, desc) \
|
|
static int lpfc_##name = defval;\
|
|
module_param(lpfc_##name, int, 0);\
|
|
MODULE_PARM_DESC(lpfc_##name, desc);\
|
|
lpfc_param_show(name)\
|
|
lpfc_param_init(name, defval, minval, maxval)\
|
|
lpfc_param_set(name, defval, minval, maxval)\
|
|
lpfc_param_store(name)\
|
|
static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
|
|
lpfc_##name##_show, lpfc_##name##_store)
|
|
|
|
#define LPFC_ATTR_HEX_R(name, defval, minval, maxval, desc) \
|
|
static int lpfc_##name = defval;\
|
|
module_param(lpfc_##name, int, 0);\
|
|
MODULE_PARM_DESC(lpfc_##name, desc);\
|
|
lpfc_param_hex_show(name)\
|
|
lpfc_param_init(name, defval, minval, maxval)\
|
|
static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
|
|
|
|
#define LPFC_ATTR_HEX_RW(name, defval, minval, maxval, desc) \
|
|
static int lpfc_##name = defval;\
|
|
module_param(lpfc_##name, int, 0);\
|
|
MODULE_PARM_DESC(lpfc_##name, desc);\
|
|
lpfc_param_hex_show(name)\
|
|
lpfc_param_init(name, defval, minval, maxval)\
|
|
lpfc_param_set(name, defval, minval, maxval)\
|
|
lpfc_param_store(name)\
|
|
static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
|
|
lpfc_##name##_show, lpfc_##name##_store)
|
|
|
|
static CLASS_DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL);
|
|
static CLASS_DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL);
|
|
static CLASS_DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL);
|
|
static CLASS_DEVICE_ATTR(modelname, S_IRUGO, lpfc_modelname_show, NULL);
|
|
static CLASS_DEVICE_ATTR(programtype, S_IRUGO, lpfc_programtype_show, NULL);
|
|
static CLASS_DEVICE_ATTR(portnum, S_IRUGO, lpfc_portnum_show, NULL);
|
|
static CLASS_DEVICE_ATTR(fwrev, S_IRUGO, lpfc_fwrev_show, NULL);
|
|
static CLASS_DEVICE_ATTR(hdw, S_IRUGO, lpfc_hdw_show, NULL);
|
|
static CLASS_DEVICE_ATTR(state, S_IRUGO, lpfc_state_show, NULL);
|
|
static CLASS_DEVICE_ATTR(option_rom_version, S_IRUGO,
|
|
lpfc_option_rom_version_show, NULL);
|
|
static CLASS_DEVICE_ATTR(num_discovered_ports, S_IRUGO,
|
|
lpfc_num_discovered_ports_show, NULL);
|
|
static CLASS_DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL);
|
|
static CLASS_DEVICE_ATTR(lpfc_drvr_version, S_IRUGO, lpfc_drvr_version_show,
|
|
NULL);
|
|
static CLASS_DEVICE_ATTR(management_version, S_IRUGO, management_version_show,
|
|
NULL);
|
|
static CLASS_DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR,
|
|
lpfc_board_mode_show, lpfc_board_mode_store);
|
|
static CLASS_DEVICE_ATTR(issue_reset, S_IWUSR, NULL, lpfc_issue_reset);
|
|
|
|
static int lpfc_poll = 0;
|
|
module_param(lpfc_poll, int, 0);
|
|
MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:"
|
|
" 0 - none,"
|
|
" 1 - poll with interrupts enabled"
|
|
" 3 - poll and disable FCP ring interrupts");
|
|
|
|
static CLASS_DEVICE_ATTR(lpfc_poll, S_IRUGO | S_IWUSR,
|
|
lpfc_poll_show, lpfc_poll_store);
|
|
|
|
/*
|
|
# lpfc_log_verbose: Only turn this flag on if you are willing to risk being
|
|
# deluged with LOTS of information.
|
|
# You can set a bit mask to record specific types of verbose messages:
|
|
#
|
|
# LOG_ELS 0x1 ELS events
|
|
# LOG_DISCOVERY 0x2 Link discovery events
|
|
# LOG_MBOX 0x4 Mailbox events
|
|
# LOG_INIT 0x8 Initialization events
|
|
# LOG_LINK_EVENT 0x10 Link events
|
|
# LOG_IP 0x20 IP traffic history
|
|
# LOG_FCP 0x40 FCP traffic history
|
|
# LOG_NODE 0x80 Node table events
|
|
# LOG_MISC 0x400 Miscellaneous events
|
|
# LOG_SLI 0x800 SLI events
|
|
# LOG_CHK_COND 0x1000 FCP Check condition flag
|
|
# LOG_LIBDFC 0x2000 LIBDFC events
|
|
# LOG_ALL_MSG 0xffff LOG all messages
|
|
*/
|
|
LPFC_ATTR_HEX_RW(log_verbose, 0x0, 0x0, 0xffff, "Verbose logging bit-mask");
|
|
|
|
/*
|
|
# lun_queue_depth: This parameter is used to limit the number of outstanding
|
|
# commands per FCP LUN. Value range is [1,128]. Default value is 30.
|
|
*/
|
|
LPFC_ATTR_R(lun_queue_depth, 30, 1, 128,
|
|
"Max number of FCP commands we can queue to a specific LUN");
|
|
|
|
/*
|
|
# hba_queue_depth: This parameter is used to limit the number of outstanding
|
|
# commands per lpfc HBA. Value range is [32,8192]. If this parameter
|
|
# value is greater than the maximum number of exchanges supported by the HBA,
|
|
# then maximum number of exchanges supported by the HBA is used to determine
|
|
# the hba_queue_depth.
|
|
*/
|
|
LPFC_ATTR_R(hba_queue_depth, 8192, 32, 8192,
|
|
"Max number of FCP commands we can queue to a lpfc HBA");
|
|
|
|
/*
|
|
# Some disk devices have a "select ID" or "select Target" capability.
|
|
# From a protocol standpoint "select ID" usually means select the
|
|
# Fibre channel "ALPA". In the FC-AL Profile there is an "informative
|
|
# annex" which contains a table that maps a "select ID" (a number
|
|
# between 0 and 7F) to an ALPA. By default, for compatibility with
|
|
# older drivers, the lpfc driver scans this table from low ALPA to high
|
|
# ALPA.
|
|
#
|
|
# Turning on the scan-down variable (on = 1, off = 0) will
|
|
# cause the lpfc driver to use an inverted table, effectively
|
|
# scanning ALPAs from high to low. Value range is [0,1]. Default value is 1.
|
|
#
|
|
# (Note: This "select ID" functionality is a LOOP ONLY characteristic
|
|
# and will not work across a fabric. Also this parameter will take
|
|
# effect only in the case when ALPA map is not available.)
|
|
*/
|
|
LPFC_ATTR_R(scan_down, 1, 0, 1,
|
|
"Start scanning for devices from highest ALPA to lowest");
|
|
|
|
/*
|
|
# lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear
|
|
# until the timer expires. Value range is [0,255]. Default value is 30.
|
|
# NOTE: this MUST be less then the SCSI Layer command timeout - 1.
|
|
*/
|
|
LPFC_ATTR_RW(nodev_tmo, 30, 0, 255,
|
|
"Seconds driver will hold I/O waiting for a device to come back");
|
|
|
|
/*
|
|
# lpfc_topology: link topology for init link
|
|
# 0x0 = attempt loop mode then point-to-point
|
|
# 0x01 = internal loopback mode
|
|
# 0x02 = attempt point-to-point mode only
|
|
# 0x04 = attempt loop mode only
|
|
# 0x06 = attempt point-to-point mode then loop
|
|
# Set point-to-point mode if you want to run as an N_Port.
|
|
# Set loop mode if you want to run as an NL_Port. Value range is [0,0x6].
|
|
# Default value is 0.
|
|
*/
|
|
LPFC_ATTR_RW(topology, 0, 0, 6, "Select Fibre Channel topology");
|
|
|
|
/*
|
|
# lpfc_link_speed: Link speed selection for initializing the Fibre Channel
|
|
# connection.
|
|
# 0 = auto select (default)
|
|
# 1 = 1 Gigabaud
|
|
# 2 = 2 Gigabaud
|
|
# 4 = 4 Gigabaud
|
|
# Value range is [0,4]. Default value is 0.
|
|
*/
|
|
LPFC_ATTR_R(link_speed, 0, 0, 4, "Select link speed");
|
|
|
|
/*
|
|
# lpfc_fcp_class: Determines FC class to use for the FCP protocol.
|
|
# Value range is [2,3]. Default value is 3.
|
|
*/
|
|
LPFC_ATTR_R(fcp_class, 3, 2, 3,
|
|
"Select Fibre Channel class of service for FCP sequences");
|
|
|
|
/*
|
|
# lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range
|
|
# is [0,1]. Default value is 0.
|
|
*/
|
|
LPFC_ATTR_RW(use_adisc, 0, 0, 1,
|
|
"Use ADISC on rediscovery to authenticate FCP devices");
|
|
|
|
/*
|
|
# lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value
|
|
# range is [0,1]. Default value is 0.
|
|
*/
|
|
LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support");
|
|
|
|
/*
|
|
# lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing
|
|
# cr_delay (msec) or cr_count outstanding commands. cr_delay can take
|
|
# value [0,63]. cr_count can take value [0,255]. Default value of cr_delay
|
|
# is 0. Default value of cr_count is 1. The cr_count feature is disabled if
|
|
# cr_delay is set to 0.
|
|
*/
|
|
LPFC_ATTR_RW(cr_delay, 0, 0, 63, "A count of milliseconds after which an "
|
|
"interrupt response is generated");
|
|
|
|
LPFC_ATTR_RW(cr_count, 1, 1, 255, "A count of I/O completions after which an "
|
|
"interrupt response is generated");
|
|
|
|
/*
|
|
# lpfc_multi_ring_support: Determines how many rings to spread available
|
|
# cmd/rsp IOCB entries across.
|
|
# Value range is [1,2]. Default value is 1.
|
|
*/
|
|
LPFC_ATTR_R(multi_ring_support, 1, 1, 2, "Determines number of primary "
|
|
"SLI rings to spread IOCB entries across");
|
|
|
|
/*
|
|
# lpfc_fdmi_on: controls FDMI support.
|
|
# 0 = no FDMI support
|
|
# 1 = support FDMI without attribute of hostname
|
|
# 2 = support FDMI with attribute of hostname
|
|
# Value range [0,2]. Default value is 0.
|
|
*/
|
|
LPFC_ATTR_RW(fdmi_on, 0, 0, 2, "Enable FDMI support");
|
|
|
|
/*
|
|
# Specifies the maximum number of ELS cmds we can have outstanding (for
|
|
# discovery). Value range is [1,64]. Default value = 32.
|
|
*/
|
|
LPFC_ATTR(discovery_threads, 32, 1, 64, "Maximum number of ELS commands "
|
|
"during discovery");
|
|
|
|
/*
|
|
# lpfc_max_luns: maximum allowed LUN.
|
|
# Value range is [0,65535]. Default value is 255.
|
|
# NOTE: The SCSI layer might probe all allowed LUN on some old targets.
|
|
*/
|
|
LPFC_ATTR_R(max_luns, 255, 0, 65535,
|
|
"Maximum allowed LUN");
|
|
|
|
/*
|
|
# lpfc_poll_tmo: .Milliseconds driver will wait between polling FCP ring.
|
|
# Value range is [1,255], default value is 10.
|
|
*/
|
|
LPFC_ATTR_RW(poll_tmo, 10, 1, 255,
|
|
"Milliseconds driver will wait between polling FCP ring");
|
|
|
|
struct class_device_attribute *lpfc_host_attrs[] = {
|
|
&class_device_attr_info,
|
|
&class_device_attr_serialnum,
|
|
&class_device_attr_modeldesc,
|
|
&class_device_attr_modelname,
|
|
&class_device_attr_programtype,
|
|
&class_device_attr_portnum,
|
|
&class_device_attr_fwrev,
|
|
&class_device_attr_hdw,
|
|
&class_device_attr_option_rom_version,
|
|
&class_device_attr_state,
|
|
&class_device_attr_num_discovered_ports,
|
|
&class_device_attr_lpfc_drvr_version,
|
|
&class_device_attr_lpfc_log_verbose,
|
|
&class_device_attr_lpfc_lun_queue_depth,
|
|
&class_device_attr_lpfc_hba_queue_depth,
|
|
&class_device_attr_lpfc_nodev_tmo,
|
|
&class_device_attr_lpfc_fcp_class,
|
|
&class_device_attr_lpfc_use_adisc,
|
|
&class_device_attr_lpfc_ack0,
|
|
&class_device_attr_lpfc_topology,
|
|
&class_device_attr_lpfc_scan_down,
|
|
&class_device_attr_lpfc_link_speed,
|
|
&class_device_attr_lpfc_cr_delay,
|
|
&class_device_attr_lpfc_cr_count,
|
|
&class_device_attr_lpfc_multi_ring_support,
|
|
&class_device_attr_lpfc_fdmi_on,
|
|
&class_device_attr_lpfc_max_luns,
|
|
&class_device_attr_nport_evt_cnt,
|
|
&class_device_attr_management_version,
|
|
&class_device_attr_board_mode,
|
|
&class_device_attr_issue_reset,
|
|
&class_device_attr_lpfc_poll,
|
|
&class_device_attr_lpfc_poll_tmo,
|
|
NULL,
|
|
};
|
|
|
|
static ssize_t
|
|
sysfs_ctlreg_write(struct kobject *kobj, char *buf, loff_t off, size_t count)
|
|
{
|
|
size_t buf_off;
|
|
struct Scsi_Host *host = class_to_shost(container_of(kobj,
|
|
struct class_device, kobj));
|
|
struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
|
|
|
|
if ((off + count) > FF_REG_AREA_SIZE)
|
|
return -ERANGE;
|
|
|
|
if (count == 0) return 0;
|
|
|
|
if (off % 4 || count % 4 || (unsigned long)buf % 4)
|
|
return -EINVAL;
|
|
|
|
spin_lock_irq(phba->host->host_lock);
|
|
|
|
if (!(phba->fc_flag & FC_OFFLINE_MODE)) {
|
|
spin_unlock_irq(phba->host->host_lock);
|
|
return -EPERM;
|
|
}
|
|
|
|
for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t))
|
|
writel(*((uint32_t *)(buf + buf_off)),
|
|
phba->ctrl_regs_memmap_p + off + buf_off);
|
|
|
|
spin_unlock_irq(phba->host->host_lock);
|
|
|
|
return count;
|
|
}
|
|
|
|
static ssize_t
|
|
sysfs_ctlreg_read(struct kobject *kobj, char *buf, loff_t off, size_t count)
|
|
{
|
|
size_t buf_off;
|
|
uint32_t * tmp_ptr;
|
|
struct Scsi_Host *host = class_to_shost(container_of(kobj,
|
|
struct class_device, kobj));
|
|
struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
|
|
|
|
if (off > FF_REG_AREA_SIZE)
|
|
return -ERANGE;
|
|
|
|
if ((off + count) > FF_REG_AREA_SIZE)
|
|
count = FF_REG_AREA_SIZE - off;
|
|
|
|
if (count == 0) return 0;
|
|
|
|
if (off % 4 || count % 4 || (unsigned long)buf % 4)
|
|
return -EINVAL;
|
|
|
|
spin_lock_irq(phba->host->host_lock);
|
|
|
|
for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t)) {
|
|
tmp_ptr = (uint32_t *)(buf + buf_off);
|
|
*tmp_ptr = readl(phba->ctrl_regs_memmap_p + off + buf_off);
|
|
}
|
|
|
|
spin_unlock_irq(phba->host->host_lock);
|
|
|
|
return count;
|
|
}
|
|
|
|
static struct bin_attribute sysfs_ctlreg_attr = {
|
|
.attr = {
|
|
.name = "ctlreg",
|
|
.mode = S_IRUSR | S_IWUSR,
|
|
.owner = THIS_MODULE,
|
|
},
|
|
.size = 256,
|
|
.read = sysfs_ctlreg_read,
|
|
.write = sysfs_ctlreg_write,
|
|
};
|
|
|
|
|
|
static void
|
|
sysfs_mbox_idle (struct lpfc_hba * phba)
|
|
{
|
|
phba->sysfs_mbox.state = SMBOX_IDLE;
|
|
phba->sysfs_mbox.offset = 0;
|
|
|
|
if (phba->sysfs_mbox.mbox) {
|
|
mempool_free(phba->sysfs_mbox.mbox,
|
|
phba->mbox_mem_pool);
|
|
phba->sysfs_mbox.mbox = NULL;
|
|
}
|
|
}
|
|
|
|
static ssize_t
|
|
sysfs_mbox_write(struct kobject *kobj, char *buf, loff_t off, size_t count)
|
|
{
|
|
struct Scsi_Host * host =
|
|
class_to_shost(container_of(kobj, struct class_device, kobj));
|
|
struct lpfc_hba * phba = (struct lpfc_hba*)host->hostdata;
|
|
struct lpfcMboxq * mbox = NULL;
|
|
|
|
if ((count + off) > MAILBOX_CMD_SIZE)
|
|
return -ERANGE;
|
|
|
|
if (off % 4 || count % 4 || (unsigned long)buf % 4)
|
|
return -EINVAL;
|
|
|
|
if (count == 0)
|
|
return 0;
|
|
|
|
if (off == 0) {
|
|
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (!mbox)
|
|
return -ENOMEM;
|
|
memset(mbox, 0, sizeof (LPFC_MBOXQ_t));
|
|
}
|
|
|
|
spin_lock_irq(host->host_lock);
|
|
|
|
if (off == 0) {
|
|
if (phba->sysfs_mbox.mbox)
|
|
mempool_free(mbox, phba->mbox_mem_pool);
|
|
else
|
|
phba->sysfs_mbox.mbox = mbox;
|
|
phba->sysfs_mbox.state = SMBOX_WRITING;
|
|
} else {
|
|
if (phba->sysfs_mbox.state != SMBOX_WRITING ||
|
|
phba->sysfs_mbox.offset != off ||
|
|
phba->sysfs_mbox.mbox == NULL ) {
|
|
sysfs_mbox_idle(phba);
|
|
spin_unlock_irq(host->host_lock);
|
|
return -EAGAIN;
|
|
}
|
|
}
|
|
|
|
memcpy((uint8_t *) & phba->sysfs_mbox.mbox->mb + off,
|
|
buf, count);
|
|
|
|
phba->sysfs_mbox.offset = off + count;
|
|
|
|
spin_unlock_irq(host->host_lock);
|
|
|
|
return count;
|
|
}
|
|
|
|
static ssize_t
|
|
sysfs_mbox_read(struct kobject *kobj, char *buf, loff_t off, size_t count)
|
|
{
|
|
struct Scsi_Host *host =
|
|
class_to_shost(container_of(kobj, struct class_device,
|
|
kobj));
|
|
struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
|
|
int rc;
|
|
|
|
if (off > sizeof(MAILBOX_t))
|
|
return -ERANGE;
|
|
|
|
if ((count + off) > sizeof(MAILBOX_t))
|
|
count = sizeof(MAILBOX_t) - off;
|
|
|
|
if (off % 4 || count % 4 || (unsigned long)buf % 4)
|
|
return -EINVAL;
|
|
|
|
if (off && count == 0)
|
|
return 0;
|
|
|
|
spin_lock_irq(phba->host->host_lock);
|
|
|
|
if (off == 0 &&
|
|
phba->sysfs_mbox.state == SMBOX_WRITING &&
|
|
phba->sysfs_mbox.offset >= 2 * sizeof(uint32_t)) {
|
|
|
|
switch (phba->sysfs_mbox.mbox->mb.mbxCommand) {
|
|
/* Offline only */
|
|
case MBX_WRITE_NV:
|
|
case MBX_INIT_LINK:
|
|
case MBX_DOWN_LINK:
|
|
case MBX_CONFIG_LINK:
|
|
case MBX_CONFIG_RING:
|
|
case MBX_RESET_RING:
|
|
case MBX_UNREG_LOGIN:
|
|
case MBX_CLEAR_LA:
|
|
case MBX_DUMP_CONTEXT:
|
|
case MBX_RUN_DIAGS:
|
|
case MBX_RESTART:
|
|
case MBX_FLASH_WR_ULA:
|
|
case MBX_SET_MASK:
|
|
case MBX_SET_SLIM:
|
|
case MBX_SET_DEBUG:
|
|
if (!(phba->fc_flag & FC_OFFLINE_MODE)) {
|
|
printk(KERN_WARNING "mbox_read:Command 0x%x "
|
|
"is illegal in on-line state\n",
|
|
phba->sysfs_mbox.mbox->mb.mbxCommand);
|
|
sysfs_mbox_idle(phba);
|
|
spin_unlock_irq(phba->host->host_lock);
|
|
return -EPERM;
|
|
}
|
|
case MBX_LOAD_SM:
|
|
case MBX_READ_NV:
|
|
case MBX_READ_CONFIG:
|
|
case MBX_READ_RCONFIG:
|
|
case MBX_READ_STATUS:
|
|
case MBX_READ_XRI:
|
|
case MBX_READ_REV:
|
|
case MBX_READ_LNK_STAT:
|
|
case MBX_DUMP_MEMORY:
|
|
case MBX_DOWN_LOAD:
|
|
case MBX_UPDATE_CFG:
|
|
case MBX_KILL_BOARD:
|
|
case MBX_LOAD_AREA:
|
|
case MBX_LOAD_EXP_ROM:
|
|
case MBX_BEACON:
|
|
case MBX_DEL_LD_ENTRY:
|
|
break;
|
|
case MBX_READ_SPARM64:
|
|
case MBX_READ_LA:
|
|
case MBX_READ_LA64:
|
|
case MBX_REG_LOGIN:
|
|
case MBX_REG_LOGIN64:
|
|
case MBX_CONFIG_PORT:
|
|
case MBX_RUN_BIU_DIAG:
|
|
printk(KERN_WARNING "mbox_read: Illegal Command 0x%x\n",
|
|
phba->sysfs_mbox.mbox->mb.mbxCommand);
|
|
sysfs_mbox_idle(phba);
|
|
spin_unlock_irq(phba->host->host_lock);
|
|
return -EPERM;
|
|
default:
|
|
printk(KERN_WARNING "mbox_read: Unknown Command 0x%x\n",
|
|
phba->sysfs_mbox.mbox->mb.mbxCommand);
|
|
sysfs_mbox_idle(phba);
|
|
spin_unlock_irq(phba->host->host_lock);
|
|
return -EPERM;
|
|
}
|
|
|
|
if ((phba->fc_flag & FC_OFFLINE_MODE) ||
|
|
(!(phba->sli.sli_flag & LPFC_SLI2_ACTIVE))){
|
|
|
|
spin_unlock_irq(phba->host->host_lock);
|
|
rc = lpfc_sli_issue_mbox (phba,
|
|
phba->sysfs_mbox.mbox,
|
|
MBX_POLL);
|
|
spin_lock_irq(phba->host->host_lock);
|
|
|
|
} else {
|
|
spin_unlock_irq(phba->host->host_lock);
|
|
rc = lpfc_sli_issue_mbox_wait (phba,
|
|
phba->sysfs_mbox.mbox,
|
|
lpfc_mbox_tmo_val(phba,
|
|
phba->sysfs_mbox.mbox->mb.mbxCommand) * HZ);
|
|
spin_lock_irq(phba->host->host_lock);
|
|
}
|
|
|
|
if (rc != MBX_SUCCESS) {
|
|
sysfs_mbox_idle(phba);
|
|
spin_unlock_irq(host->host_lock);
|
|
return (rc == MBX_TIMEOUT) ? -ETIME : -ENODEV;
|
|
}
|
|
phba->sysfs_mbox.state = SMBOX_READING;
|
|
}
|
|
else if (phba->sysfs_mbox.offset != off ||
|
|
phba->sysfs_mbox.state != SMBOX_READING) {
|
|
printk(KERN_WARNING "mbox_read: Bad State\n");
|
|
sysfs_mbox_idle(phba);
|
|
spin_unlock_irq(host->host_lock);
|
|
return -EAGAIN;
|
|
}
|
|
|
|
memcpy(buf, (uint8_t *) & phba->sysfs_mbox.mbox->mb + off, count);
|
|
|
|
phba->sysfs_mbox.offset = off + count;
|
|
|
|
if (phba->sysfs_mbox.offset == sizeof(MAILBOX_t))
|
|
sysfs_mbox_idle(phba);
|
|
|
|
spin_unlock_irq(phba->host->host_lock);
|
|
|
|
return count;
|
|
}
|
|
|
|
static struct bin_attribute sysfs_mbox_attr = {
|
|
.attr = {
|
|
.name = "mbox",
|
|
.mode = S_IRUSR | S_IWUSR,
|
|
.owner = THIS_MODULE,
|
|
},
|
|
.size = sizeof(MAILBOX_t),
|
|
.read = sysfs_mbox_read,
|
|
.write = sysfs_mbox_write,
|
|
};
|
|
|
|
int
|
|
lpfc_alloc_sysfs_attr(struct lpfc_hba *phba)
|
|
{
|
|
struct Scsi_Host *host = phba->host;
|
|
int error;
|
|
|
|
error = sysfs_create_bin_file(&host->shost_classdev.kobj,
|
|
&sysfs_ctlreg_attr);
|
|
if (error)
|
|
goto out;
|
|
|
|
error = sysfs_create_bin_file(&host->shost_classdev.kobj,
|
|
&sysfs_mbox_attr);
|
|
if (error)
|
|
goto out_remove_ctlreg_attr;
|
|
|
|
return 0;
|
|
out_remove_ctlreg_attr:
|
|
sysfs_remove_bin_file(&host->shost_classdev.kobj, &sysfs_ctlreg_attr);
|
|
out:
|
|
return error;
|
|
}
|
|
|
|
void
|
|
lpfc_free_sysfs_attr(struct lpfc_hba *phba)
|
|
{
|
|
struct Scsi_Host *host = phba->host;
|
|
|
|
sysfs_remove_bin_file(&host->shost_classdev.kobj, &sysfs_mbox_attr);
|
|
sysfs_remove_bin_file(&host->shost_classdev.kobj, &sysfs_ctlreg_attr);
|
|
}
|
|
|
|
|
|
/*
|
|
* Dynamic FC Host Attributes Support
|
|
*/
|
|
|
|
static void
|
|
lpfc_get_host_port_id(struct Scsi_Host *shost)
|
|
{
|
|
struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata;
|
|
/* note: fc_myDID already in cpu endianness */
|
|
fc_host_port_id(shost) = phba->fc_myDID;
|
|
}
|
|
|
|
static void
|
|
lpfc_get_host_port_type(struct Scsi_Host *shost)
|
|
{
|
|
struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata;
|
|
|
|
spin_lock_irq(shost->host_lock);
|
|
|
|
if (phba->hba_state == LPFC_HBA_READY) {
|
|
if (phba->fc_topology == TOPOLOGY_LOOP) {
|
|
if (phba->fc_flag & FC_PUBLIC_LOOP)
|
|
fc_host_port_type(shost) = FC_PORTTYPE_NLPORT;
|
|
else
|
|
fc_host_port_type(shost) = FC_PORTTYPE_LPORT;
|
|
} else {
|
|
if (phba->fc_flag & FC_FABRIC)
|
|
fc_host_port_type(shost) = FC_PORTTYPE_NPORT;
|
|
else
|
|
fc_host_port_type(shost) = FC_PORTTYPE_PTP;
|
|
}
|
|
} else
|
|
fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN;
|
|
|
|
spin_unlock_irq(shost->host_lock);
|
|
}
|
|
|
|
static void
|
|
lpfc_get_host_port_state(struct Scsi_Host *shost)
|
|
{
|
|
struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata;
|
|
|
|
spin_lock_irq(shost->host_lock);
|
|
|
|
if (phba->fc_flag & FC_OFFLINE_MODE)
|
|
fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE;
|
|
else {
|
|
switch (phba->hba_state) {
|
|
case LPFC_STATE_UNKNOWN:
|
|
case LPFC_WARM_START:
|
|
case LPFC_INIT_START:
|
|
case LPFC_INIT_MBX_CMDS:
|
|
case LPFC_LINK_DOWN:
|
|
fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN;
|
|
break;
|
|
case LPFC_LINK_UP:
|
|
case LPFC_LOCAL_CFG_LINK:
|
|
case LPFC_FLOGI:
|
|
case LPFC_FABRIC_CFG_LINK:
|
|
case LPFC_NS_REG:
|
|
case LPFC_NS_QRY:
|
|
case LPFC_BUILD_DISC_LIST:
|
|
case LPFC_DISC_AUTH:
|
|
case LPFC_CLEAR_LA:
|
|
case LPFC_HBA_READY:
|
|
/* Links up, beyond this port_type reports state */
|
|
fc_host_port_state(shost) = FC_PORTSTATE_ONLINE;
|
|
break;
|
|
case LPFC_HBA_ERROR:
|
|
fc_host_port_state(shost) = FC_PORTSTATE_ERROR;
|
|
break;
|
|
default:
|
|
fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN;
|
|
break;
|
|
}
|
|
}
|
|
|
|
spin_unlock_irq(shost->host_lock);
|
|
}
|
|
|
|
static void
|
|
lpfc_get_host_speed(struct Scsi_Host *shost)
|
|
{
|
|
struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata;
|
|
|
|
spin_lock_irq(shost->host_lock);
|
|
|
|
if (phba->hba_state == LPFC_HBA_READY) {
|
|
switch(phba->fc_linkspeed) {
|
|
case LA_1GHZ_LINK:
|
|
fc_host_speed(shost) = FC_PORTSPEED_1GBIT;
|
|
break;
|
|
case LA_2GHZ_LINK:
|
|
fc_host_speed(shost) = FC_PORTSPEED_2GBIT;
|
|
break;
|
|
case LA_4GHZ_LINK:
|
|
fc_host_speed(shost) = FC_PORTSPEED_4GBIT;
|
|
break;
|
|
default:
|
|
fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
|
|
break;
|
|
}
|
|
}
|
|
|
|
spin_unlock_irq(shost->host_lock);
|
|
}
|
|
|
|
static void
|
|
lpfc_get_host_fabric_name (struct Scsi_Host *shost)
|
|
{
|
|
struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata;
|
|
u64 node_name;
|
|
|
|
spin_lock_irq(shost->host_lock);
|
|
|
|
if ((phba->fc_flag & FC_FABRIC) ||
|
|
((phba->fc_topology == TOPOLOGY_LOOP) &&
|
|
(phba->fc_flag & FC_PUBLIC_LOOP)))
|
|
node_name = wwn_to_u64(phba->fc_fabparam.nodeName.u.wwn);
|
|
else
|
|
/* fabric is local port if there is no F/FL_Port */
|
|
node_name = wwn_to_u64(phba->fc_nodename.u.wwn);
|
|
|
|
spin_unlock_irq(shost->host_lock);
|
|
|
|
fc_host_fabric_name(shost) = node_name;
|
|
}
|
|
|
|
|
|
static struct fc_host_statistics *
|
|
lpfc_get_stats(struct Scsi_Host *shost)
|
|
{
|
|
struct lpfc_hba *phba = (struct lpfc_hba *)shost->hostdata;
|
|
struct lpfc_sli *psli = &phba->sli;
|
|
struct fc_host_statistics *hs = &phba->link_stats;
|
|
struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets;
|
|
LPFC_MBOXQ_t *pmboxq;
|
|
MAILBOX_t *pmb;
|
|
unsigned long seconds;
|
|
int rc = 0;
|
|
|
|
pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (!pmboxq)
|
|
return NULL;
|
|
memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
|
|
|
|
pmb = &pmboxq->mb;
|
|
pmb->mbxCommand = MBX_READ_STATUS;
|
|
pmb->mbxOwner = OWN_HOST;
|
|
pmboxq->context1 = NULL;
|
|
|
|
if ((phba->fc_flag & FC_OFFLINE_MODE) ||
|
|
(!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
|
|
rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
|
|
else
|
|
rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
|
|
|
|
if (rc != MBX_SUCCESS) {
|
|
if (rc == MBX_TIMEOUT)
|
|
pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
|
|
else
|
|
mempool_free(pmboxq, phba->mbox_mem_pool);
|
|
return NULL;
|
|
}
|
|
|
|
memset(hs, 0, sizeof (struct fc_host_statistics));
|
|
|
|
hs->tx_frames = pmb->un.varRdStatus.xmitFrameCnt;
|
|
hs->tx_words = (pmb->un.varRdStatus.xmitByteCnt * 256);
|
|
hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt;
|
|
hs->rx_words = (pmb->un.varRdStatus.rcvByteCnt * 256);
|
|
|
|
memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
|
|
pmb->mbxCommand = MBX_READ_LNK_STAT;
|
|
pmb->mbxOwner = OWN_HOST;
|
|
pmboxq->context1 = NULL;
|
|
|
|
if ((phba->fc_flag & FC_OFFLINE_MODE) ||
|
|
(!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
|
|
rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
|
|
else
|
|
rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
|
|
|
|
if (rc != MBX_SUCCESS) {
|
|
if (rc == MBX_TIMEOUT)
|
|
pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
|
|
else
|
|
mempool_free( pmboxq, phba->mbox_mem_pool);
|
|
return NULL;
|
|
}
|
|
|
|
hs->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
|
|
hs->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
|
|
hs->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
|
|
hs->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
|
|
hs->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
|
|
hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
|
|
hs->error_frames = pmb->un.varRdLnk.crcCnt;
|
|
|
|
hs->link_failure_count -= lso->link_failure_count;
|
|
hs->loss_of_sync_count -= lso->loss_of_sync_count;
|
|
hs->loss_of_signal_count -= lso->loss_of_signal_count;
|
|
hs->prim_seq_protocol_err_count -= lso->prim_seq_protocol_err_count;
|
|
hs->invalid_tx_word_count -= lso->invalid_tx_word_count;
|
|
hs->invalid_crc_count -= lso->invalid_crc_count;
|
|
hs->error_frames -= lso->error_frames;
|
|
|
|
if (phba->fc_topology == TOPOLOGY_LOOP) {
|
|
hs->lip_count = (phba->fc_eventTag >> 1);
|
|
hs->lip_count -= lso->link_events;
|
|
hs->nos_count = -1;
|
|
} else {
|
|
hs->lip_count = -1;
|
|
hs->nos_count = (phba->fc_eventTag >> 1);
|
|
hs->nos_count -= lso->link_events;
|
|
}
|
|
|
|
hs->dumped_frames = -1;
|
|
|
|
seconds = get_seconds();
|
|
if (seconds < psli->stats_start)
|
|
hs->seconds_since_last_reset = seconds +
|
|
((unsigned long)-1 - psli->stats_start);
|
|
else
|
|
hs->seconds_since_last_reset = seconds - psli->stats_start;
|
|
|
|
return hs;
|
|
}
|
|
|
|
static void
|
|
lpfc_reset_stats(struct Scsi_Host *shost)
|
|
{
|
|
struct lpfc_hba *phba = (struct lpfc_hba *)shost->hostdata;
|
|
struct lpfc_sli *psli = &phba->sli;
|
|
struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets;
|
|
LPFC_MBOXQ_t *pmboxq;
|
|
MAILBOX_t *pmb;
|
|
int rc = 0;
|
|
|
|
pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (!pmboxq)
|
|
return;
|
|
memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
|
|
|
|
pmb = &pmboxq->mb;
|
|
pmb->mbxCommand = MBX_READ_STATUS;
|
|
pmb->mbxOwner = OWN_HOST;
|
|
pmb->un.varWords[0] = 0x1; /* reset request */
|
|
pmboxq->context1 = NULL;
|
|
|
|
if ((phba->fc_flag & FC_OFFLINE_MODE) ||
|
|
(!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
|
|
rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
|
|
else
|
|
rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
|
|
|
|
if (rc != MBX_SUCCESS) {
|
|
if (rc == MBX_TIMEOUT)
|
|
pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
|
|
else
|
|
mempool_free(pmboxq, phba->mbox_mem_pool);
|
|
return;
|
|
}
|
|
|
|
memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
|
|
pmb->mbxCommand = MBX_READ_LNK_STAT;
|
|
pmb->mbxOwner = OWN_HOST;
|
|
pmboxq->context1 = NULL;
|
|
|
|
if ((phba->fc_flag & FC_OFFLINE_MODE) ||
|
|
(!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
|
|
rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
|
|
else
|
|
rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
|
|
|
|
if (rc != MBX_SUCCESS) {
|
|
if (rc == MBX_TIMEOUT)
|
|
pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
|
|
else
|
|
mempool_free( pmboxq, phba->mbox_mem_pool);
|
|
return;
|
|
}
|
|
|
|
lso->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
|
|
lso->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
|
|
lso->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
|
|
lso->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
|
|
lso->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
|
|
lso->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
|
|
lso->error_frames = pmb->un.varRdLnk.crcCnt;
|
|
lso->link_events = (phba->fc_eventTag >> 1);
|
|
|
|
psli->stats_start = get_seconds();
|
|
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* The LPFC driver treats linkdown handling as target loss events so there
|
|
* are no sysfs handlers for link_down_tmo.
|
|
*/
|
|
static void
|
|
lpfc_get_starget_port_id(struct scsi_target *starget)
|
|
{
|
|
struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
|
|
struct lpfc_hba *phba = (struct lpfc_hba *) shost->hostdata;
|
|
uint32_t did = -1;
|
|
struct lpfc_nodelist *ndlp = NULL;
|
|
|
|
spin_lock_irq(shost->host_lock);
|
|
/* Search the mapped list for this target ID */
|
|
list_for_each_entry(ndlp, &phba->fc_nlpmap_list, nlp_listp) {
|
|
if (starget->id == ndlp->nlp_sid) {
|
|
did = ndlp->nlp_DID;
|
|
break;
|
|
}
|
|
}
|
|
spin_unlock_irq(shost->host_lock);
|
|
|
|
fc_starget_port_id(starget) = did;
|
|
}
|
|
|
|
static void
|
|
lpfc_get_starget_node_name(struct scsi_target *starget)
|
|
{
|
|
struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
|
|
struct lpfc_hba *phba = (struct lpfc_hba *) shost->hostdata;
|
|
u64 node_name = 0;
|
|
struct lpfc_nodelist *ndlp = NULL;
|
|
|
|
spin_lock_irq(shost->host_lock);
|
|
/* Search the mapped list for this target ID */
|
|
list_for_each_entry(ndlp, &phba->fc_nlpmap_list, nlp_listp) {
|
|
if (starget->id == ndlp->nlp_sid) {
|
|
node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
|
|
break;
|
|
}
|
|
}
|
|
spin_unlock_irq(shost->host_lock);
|
|
|
|
fc_starget_node_name(starget) = node_name;
|
|
}
|
|
|
|
static void
|
|
lpfc_get_starget_port_name(struct scsi_target *starget)
|
|
{
|
|
struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
|
|
struct lpfc_hba *phba = (struct lpfc_hba *) shost->hostdata;
|
|
u64 port_name = 0;
|
|
struct lpfc_nodelist *ndlp = NULL;
|
|
|
|
spin_lock_irq(shost->host_lock);
|
|
/* Search the mapped list for this target ID */
|
|
list_for_each_entry(ndlp, &phba->fc_nlpmap_list, nlp_listp) {
|
|
if (starget->id == ndlp->nlp_sid) {
|
|
port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
|
|
break;
|
|
}
|
|
}
|
|
spin_unlock_irq(shost->host_lock);
|
|
|
|
fc_starget_port_name(starget) = port_name;
|
|
}
|
|
|
|
static void
|
|
lpfc_get_rport_loss_tmo(struct fc_rport *rport)
|
|
{
|
|
/*
|
|
* Return the driver's global value for device loss timeout plus
|
|
* five seconds to allow the driver's nodev timer to run.
|
|
*/
|
|
rport->dev_loss_tmo = lpfc_nodev_tmo + 5;
|
|
}
|
|
|
|
static void
|
|
lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
|
|
{
|
|
/*
|
|
* The driver doesn't have a per-target timeout setting. Set
|
|
* this value globally. lpfc_nodev_tmo should be greater then 0.
|
|
*/
|
|
if (timeout)
|
|
lpfc_nodev_tmo = timeout;
|
|
else
|
|
lpfc_nodev_tmo = 1;
|
|
rport->dev_loss_tmo = lpfc_nodev_tmo + 5;
|
|
}
|
|
|
|
|
|
#define lpfc_rport_show_function(field, format_string, sz, cast) \
|
|
static ssize_t \
|
|
lpfc_show_rport_##field (struct class_device *cdev, char *buf) \
|
|
{ \
|
|
struct fc_rport *rport = transport_class_to_rport(cdev); \
|
|
struct lpfc_rport_data *rdata = rport->hostdata; \
|
|
return snprintf(buf, sz, format_string, \
|
|
(rdata->target) ? cast rdata->target->field : 0); \
|
|
}
|
|
|
|
#define lpfc_rport_rd_attr(field, format_string, sz) \
|
|
lpfc_rport_show_function(field, format_string, sz, ) \
|
|
static FC_RPORT_ATTR(field, S_IRUGO, lpfc_show_rport_##field, NULL)
|
|
|
|
|
|
struct fc_function_template lpfc_transport_functions = {
|
|
/* fixed attributes the driver supports */
|
|
.show_host_node_name = 1,
|
|
.show_host_port_name = 1,
|
|
.show_host_supported_classes = 1,
|
|
.show_host_supported_fc4s = 1,
|
|
.show_host_symbolic_name = 1,
|
|
.show_host_supported_speeds = 1,
|
|
.show_host_maxframe_size = 1,
|
|
|
|
/* dynamic attributes the driver supports */
|
|
.get_host_port_id = lpfc_get_host_port_id,
|
|
.show_host_port_id = 1,
|
|
|
|
.get_host_port_type = lpfc_get_host_port_type,
|
|
.show_host_port_type = 1,
|
|
|
|
.get_host_port_state = lpfc_get_host_port_state,
|
|
.show_host_port_state = 1,
|
|
|
|
/* active_fc4s is shown but doesn't change (thus no get function) */
|
|
.show_host_active_fc4s = 1,
|
|
|
|
.get_host_speed = lpfc_get_host_speed,
|
|
.show_host_speed = 1,
|
|
|
|
.get_host_fabric_name = lpfc_get_host_fabric_name,
|
|
.show_host_fabric_name = 1,
|
|
|
|
/*
|
|
* The LPFC driver treats linkdown handling as target loss events
|
|
* so there are no sysfs handlers for link_down_tmo.
|
|
*/
|
|
|
|
.get_fc_host_stats = lpfc_get_stats,
|
|
.reset_fc_host_stats = lpfc_reset_stats,
|
|
|
|
.dd_fcrport_size = sizeof(struct lpfc_rport_data),
|
|
.show_rport_maxframe_size = 1,
|
|
.show_rport_supported_classes = 1,
|
|
|
|
.get_rport_dev_loss_tmo = lpfc_get_rport_loss_tmo,
|
|
.set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
|
|
.show_rport_dev_loss_tmo = 1,
|
|
|
|
.get_starget_port_id = lpfc_get_starget_port_id,
|
|
.show_starget_port_id = 1,
|
|
|
|
.get_starget_node_name = lpfc_get_starget_node_name,
|
|
.show_starget_node_name = 1,
|
|
|
|
.get_starget_port_name = lpfc_get_starget_port_name,
|
|
.show_starget_port_name = 1,
|
|
|
|
.issue_fc_host_lip = lpfc_issue_lip,
|
|
};
|
|
|
|
void
|
|
lpfc_get_cfgparam(struct lpfc_hba *phba)
|
|
{
|
|
lpfc_log_verbose_init(phba, lpfc_log_verbose);
|
|
lpfc_cr_delay_init(phba, lpfc_cr_delay);
|
|
lpfc_cr_count_init(phba, lpfc_cr_count);
|
|
lpfc_multi_ring_support_init(phba, lpfc_multi_ring_support);
|
|
lpfc_lun_queue_depth_init(phba, lpfc_lun_queue_depth);
|
|
lpfc_fcp_class_init(phba, lpfc_fcp_class);
|
|
lpfc_use_adisc_init(phba, lpfc_use_adisc);
|
|
lpfc_ack0_init(phba, lpfc_ack0);
|
|
lpfc_topology_init(phba, lpfc_topology);
|
|
lpfc_scan_down_init(phba, lpfc_scan_down);
|
|
lpfc_nodev_tmo_init(phba, lpfc_nodev_tmo);
|
|
lpfc_link_speed_init(phba, lpfc_link_speed);
|
|
lpfc_fdmi_on_init(phba, lpfc_fdmi_on);
|
|
lpfc_discovery_threads_init(phba, lpfc_discovery_threads);
|
|
lpfc_max_luns_init(phba, lpfc_max_luns);
|
|
lpfc_poll_tmo_init(phba, lpfc_poll_tmo);
|
|
|
|
phba->cfg_poll = lpfc_poll;
|
|
|
|
/*
|
|
* The total number of segments is the configuration value plus 2
|
|
* since the IOCB need a command and response bde.
|
|
*/
|
|
phba->cfg_sg_seg_cnt = LPFC_SG_SEG_CNT + 2;
|
|
|
|
/*
|
|
* Since the sg_tablesize is module parameter, the sg_dma_buf_size
|
|
* used to create the sg_dma_buf_pool must be dynamically calculated
|
|
*/
|
|
phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
|
|
sizeof(struct fcp_rsp) +
|
|
(phba->cfg_sg_seg_cnt * sizeof(struct ulp_bde64));
|
|
|
|
switch (phba->pcidev->device) {
|
|
case PCI_DEVICE_ID_LP101:
|
|
case PCI_DEVICE_ID_BSMB:
|
|
case PCI_DEVICE_ID_ZSMB:
|
|
phba->cfg_hba_queue_depth = LPFC_LP101_HBA_Q_DEPTH;
|
|
break;
|
|
case PCI_DEVICE_ID_RFLY:
|
|
case PCI_DEVICE_ID_PFLY:
|
|
case PCI_DEVICE_ID_BMID:
|
|
case PCI_DEVICE_ID_ZMID:
|
|
case PCI_DEVICE_ID_TFLY:
|
|
phba->cfg_hba_queue_depth = LPFC_LC_HBA_Q_DEPTH;
|
|
break;
|
|
default:
|
|
phba->cfg_hba_queue_depth = LPFC_DFT_HBA_Q_DEPTH;
|
|
}
|
|
|
|
if (phba->cfg_hba_queue_depth > lpfc_hba_queue_depth)
|
|
lpfc_hba_queue_depth_init(phba, lpfc_hba_queue_depth);
|
|
|
|
return;
|
|
}
|