lpfc_attr.c 149.3 KB
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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) 2004-2011 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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 *                                                                 *
 * 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       *
 * Public License as published by the Free Software Foundation.    *
 * This program is distributed in the hope that it will be useful. *
 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND          *
 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,  *
 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE      *
 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
 * TO BE LEGALLY INVALID.  See the GNU General Public License for  *
 * more details, a copy of which can be found in the file COPYING  *
 * included with this package.                                     *
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 *******************************************************************/

#include <linux/ctype.h>
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#include <linux/delay.h>
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#include <linux/pci.h>
#include <linux/interrupt.h>
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#include <linux/aer.h>
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#include <linux/gfp.h>
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#include <linux/kernel.h>
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#include <scsi/scsi.h>
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#include <scsi/scsi_device.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_tcq.h>
#include <scsi/scsi_transport_fc.h>
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#include <scsi/fc/fc_fs.h>
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#include "lpfc_hw4.h"
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#include "lpfc_hw.h"
#include "lpfc_sli.h"
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#include "lpfc_sli4.h"
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#include "lpfc_nl.h"
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#include "lpfc_disc.h"
#include "lpfc_scsi.h"
#include "lpfc.h"
#include "lpfc_logmsg.h"
#include "lpfc_version.h"
#include "lpfc_compat.h"
#include "lpfc_crtn.h"
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#include "lpfc_vport.h"
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#define LPFC_DEF_DEVLOSS_TMO 30
#define LPFC_MIN_DEVLOSS_TMO 1
#define LPFC_MAX_DEVLOSS_TMO 255
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/**
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 * lpfc_jedec_to_ascii - Hex to ascii convertor according to JEDEC rules
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 * @incr: integer to convert.
 * @hdw: ascii string holding converted integer plus a string terminator.
 *
 * Description:
 * JEDEC Joint Electron Device Engineering Council.
 * Convert a 32 bit integer composed of 8 nibbles into an 8 byte ascii
 * character string. The string is then terminated with a NULL in byte 9.
 * Hex 0-9 becomes ascii '0' to '9'.
 * Hex a-f becomes ascii '=' to 'B' capital B.
 *
 * Notes:
 * Coded for 32 bit integers only.
 **/
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static void
lpfc_jedec_to_ascii(int incr, char hdw[])
{
	int i, j;
	for (i = 0; i < 8; i++) {
		j = (incr & 0xf);
		if (j <= 9)
			hdw[7 - i] = 0x30 +  j;
		 else
			hdw[7 - i] = 0x61 + j - 10;
		incr = (incr >> 4);
	}
	hdw[8] = 0;
	return;
}

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/**
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 * lpfc_drvr_version_show - Return the Emulex driver string with version number
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 * @dev: class unused variable.
 * @attr: device attribute, not used.
 * @buf: on return contains the module description text.
 *
 * Returns: size of formatted string.
 **/
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static ssize_t
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lpfc_drvr_version_show(struct device *dev, struct device_attribute *attr,
		       char *buf)
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{
	return snprintf(buf, PAGE_SIZE, LPFC_MODULE_DESC "\n");
}

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/**
 * lpfc_enable_fip_show - Return the fip mode of the HBA
 * @dev: class unused variable.
 * @attr: device attribute, not used.
 * @buf: on return contains the module description text.
 *
 * Returns: size of formatted string.
 **/
static ssize_t
lpfc_enable_fip_show(struct device *dev, struct device_attribute *attr,
		       char *buf)
{
	struct Scsi_Host *shost = class_to_shost(dev);
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;

	if (phba->hba_flag & HBA_FIP_SUPPORT)
		return snprintf(buf, PAGE_SIZE, "1\n");
	else
		return snprintf(buf, PAGE_SIZE, "0\n");
}

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static ssize_t
lpfc_bg_info_show(struct device *dev, struct device_attribute *attr,
		  char *buf)
{
	struct Scsi_Host *shost = class_to_shost(dev);
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;

	if (phba->cfg_enable_bg)
		if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
			return snprintf(buf, PAGE_SIZE, "BlockGuard Enabled\n");
		else
			return snprintf(buf, PAGE_SIZE,
					"BlockGuard Not Supported\n");
	else
			return snprintf(buf, PAGE_SIZE,
					"BlockGuard Disabled\n");
}

static ssize_t
lpfc_bg_guard_err_show(struct device *dev, struct device_attribute *attr,
		       char *buf)
{
	struct Scsi_Host *shost = class_to_shost(dev);
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;

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	return snprintf(buf, PAGE_SIZE, "%llu\n",
			(unsigned long long)phba->bg_guard_err_cnt);
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}

static ssize_t
lpfc_bg_apptag_err_show(struct device *dev, struct device_attribute *attr,
			char *buf)
{
	struct Scsi_Host *shost = class_to_shost(dev);
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;

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	return snprintf(buf, PAGE_SIZE, "%llu\n",
			(unsigned long long)phba->bg_apptag_err_cnt);
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}

static ssize_t
lpfc_bg_reftag_err_show(struct device *dev, struct device_attribute *attr,
			char *buf)
{
	struct Scsi_Host *shost = class_to_shost(dev);
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;

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	return snprintf(buf, PAGE_SIZE, "%llu\n",
			(unsigned long long)phba->bg_reftag_err_cnt);
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}

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/**
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 * lpfc_info_show - Return some pci info about the host in ascii
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 * @dev: class converted to a Scsi_host structure.
 * @attr: device attribute, not used.
 * @buf: on return contains the formatted text from lpfc_info().
 *
 * Returns: size of formatted string.
 **/
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static ssize_t
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lpfc_info_show(struct device *dev, struct device_attribute *attr,
	       char *buf)
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{
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	struct Scsi_Host *host = class_to_shost(dev);
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	return snprintf(buf, PAGE_SIZE, "%s\n",lpfc_info(host));
}

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/**
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 * lpfc_serialnum_show - Return the hba serial number in ascii
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 * @dev: class converted to a Scsi_host structure.
 * @attr: device attribute, not used.
 * @buf: on return contains the formatted text serial number.
 *
 * Returns: size of formatted string.
 **/
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static ssize_t
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lpfc_serialnum_show(struct device *dev, struct device_attribute *attr,
		    char *buf)
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{
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	struct Scsi_Host  *shost = class_to_shost(dev);
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	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;

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	return snprintf(buf, PAGE_SIZE, "%s\n",phba->SerialNumber);
}

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/**
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 * lpfc_temp_sensor_show - Return the temperature sensor level
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 * @dev: class converted to a Scsi_host structure.
 * @attr: device attribute, not used.
 * @buf: on return contains the formatted support level.
 *
 * Description:
 * Returns a number indicating the temperature sensor level currently
 * supported, zero or one in ascii.
 *
 * Returns: size of formatted string.
 **/
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static ssize_t
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lpfc_temp_sensor_show(struct device *dev, struct device_attribute *attr,
		      char *buf)
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{
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	struct Scsi_Host *shost = class_to_shost(dev);
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	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
	return snprintf(buf, PAGE_SIZE, "%d\n",phba->temp_sensor_support);
}

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/**
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 * lpfc_modeldesc_show - Return the model description of the hba
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 * @dev: class converted to a Scsi_host structure.
 * @attr: device attribute, not used.
 * @buf: on return contains the scsi vpd model description.
 *
 * Returns: size of formatted string.
 **/
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static ssize_t
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lpfc_modeldesc_show(struct device *dev, struct device_attribute *attr,
		    char *buf)
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{
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	struct Scsi_Host  *shost = class_to_shost(dev);
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	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;

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	return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelDesc);
}

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/**
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 * lpfc_modelname_show - Return the model name of the hba
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 * @dev: class converted to a Scsi_host structure.
 * @attr: device attribute, not used.
 * @buf: on return contains the scsi vpd model name.
 *
 * Returns: size of formatted string.
 **/
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static ssize_t
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lpfc_modelname_show(struct device *dev, struct device_attribute *attr,
		    char *buf)
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{
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	struct Scsi_Host  *shost = class_to_shost(dev);
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	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;

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	return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelName);
}

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/**
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 * lpfc_programtype_show - Return the program type of the hba
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 * @dev: class converted to a Scsi_host structure.
 * @attr: device attribute, not used.
 * @buf: on return contains the scsi vpd program type.
 *
 * Returns: size of formatted string.
 **/
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static ssize_t
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lpfc_programtype_show(struct device *dev, struct device_attribute *attr,
		      char *buf)
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{
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	struct Scsi_Host  *shost = class_to_shost(dev);
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	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;

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	return snprintf(buf, PAGE_SIZE, "%s\n",phba->ProgramType);
}

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/**
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 * lpfc_mlomgmt_show - Return the Menlo Maintenance sli flag
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 * @dev: class converted to a Scsi_host structure.
 * @attr: device attribute, not used.
 * @buf: on return contains the Menlo Maintenance sli flag.
 *
 * Returns: size of formatted string.
 **/
static ssize_t
lpfc_mlomgmt_show(struct device *dev, struct device_attribute *attr, char *buf)
{
	struct Scsi_Host  *shost = class_to_shost(dev);
	struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;

	return snprintf(buf, PAGE_SIZE, "%d\n",
		(phba->sli.sli_flag & LPFC_MENLO_MAINT));
}

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/**
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 * lpfc_vportnum_show - Return the port number in ascii of the hba
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 * @dev: class converted to a Scsi_host structure.
 * @attr: device attribute, not used.
 * @buf: on return contains scsi vpd program type.
 *
 * Returns: size of formatted string.
 **/
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static ssize_t
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lpfc_vportnum_show(struct device *dev, struct device_attribute *attr,
		   char *buf)
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{
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	struct Scsi_Host  *shost = class_to_shost(dev);
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	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;

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	return snprintf(buf, PAGE_SIZE, "%s\n",phba->Port);
}

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/**
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 * lpfc_fwrev_show - Return the firmware rev running in the hba
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 * @dev: class converted to a Scsi_host structure.
 * @attr: device attribute, not used.
 * @buf: on return contains the scsi vpd program type.
 *
 * Returns: size of formatted string.
 **/
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static ssize_t
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lpfc_fwrev_show(struct device *dev, struct device_attribute *attr,
		char *buf)
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{
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	struct Scsi_Host  *shost = class_to_shost(dev);
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	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
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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, sli-%d\n", fwrev, phba->sli_rev);
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}

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/**
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 * lpfc_hdw_show - Return the jedec information about the hba
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 * @dev: class converted to a Scsi_host structure.
 * @attr: device attribute, not used.
 * @buf: on return contains the scsi vpd program type.
 *
 * Returns: size of formatted string.
 **/
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static ssize_t
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lpfc_hdw_show(struct device *dev, struct device_attribute *attr, char *buf)
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{
	char hdw[9];
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	struct Scsi_Host  *shost = class_to_shost(dev);
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	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
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	lpfc_vpd_t *vp = &phba->vpd;
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	lpfc_jedec_to_ascii(vp->rev.biuRev, hdw);
	return snprintf(buf, PAGE_SIZE, "%s\n", hdw);
}
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/**
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 * lpfc_option_rom_version_show - Return the adapter ROM FCode version
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 * @dev: class converted to a Scsi_host structure.
 * @attr: device attribute, not used.
 * @buf: on return contains the ROM and FCode ascii strings.
 *
 * Returns: size of formatted string.
 **/
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static ssize_t
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lpfc_option_rom_version_show(struct device *dev, struct device_attribute *attr,
			     char *buf)
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{
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	struct Scsi_Host  *shost = class_to_shost(dev);
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	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;

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	return snprintf(buf, PAGE_SIZE, "%s\n", phba->OptionROMVersion);
}
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/**
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 * lpfc_state_show - Return the link state of the port
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 * @dev: class converted to a Scsi_host structure.
 * @attr: device attribute, not used.
 * @buf: on return contains text describing the state of the link.
 *
 * Notes:
 * The switch statement has no default so zero will be returned.
 *
 * Returns: size of formatted string.
 **/
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static ssize_t
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lpfc_link_state_show(struct device *dev, struct device_attribute *attr,
		     char *buf)
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{
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	struct Scsi_Host  *shost = class_to_shost(dev);
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	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
	int  len = 0;

	switch (phba->link_state) {
	case LPFC_LINK_UNKNOWN:
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	case LPFC_WARM_START:
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	case LPFC_INIT_START:
	case LPFC_INIT_MBX_CMDS:
	case LPFC_LINK_DOWN:
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	case LPFC_HBA_ERROR:
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		if (phba->hba_flag & LINK_DISABLED)
			len += snprintf(buf + len, PAGE_SIZE-len,
				"Link Down - User disabled\n");
		else
			len += snprintf(buf + len, PAGE_SIZE-len,
				"Link Down\n");
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		break;
	case LPFC_LINK_UP:
	case LPFC_CLEAR_LA:
	case LPFC_HBA_READY:
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		len += snprintf(buf + len, PAGE_SIZE-len, "Link Up - ");
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		switch (vport->port_state) {
		case LPFC_LOCAL_CFG_LINK:
			len += snprintf(buf + len, PAGE_SIZE-len,
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					"Configuring Link\n");
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			break;
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		case LPFC_FDISC:
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		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:
			len += snprintf(buf + len, PAGE_SIZE - len,
					"Discovery\n");
			break;
		case LPFC_VPORT_READY:
			len += snprintf(buf + len, PAGE_SIZE - len, "Ready\n");
			break;

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		case LPFC_VPORT_FAILED:
			len += snprintf(buf + len, PAGE_SIZE - len, "Failed\n");
			break;

		case LPFC_VPORT_UNKNOWN:
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			len += snprintf(buf + len, PAGE_SIZE - len,
					"Unknown\n");
			break;
		}
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		if (phba->sli.sli_flag & LPFC_MENLO_MAINT)
			len += snprintf(buf + len, PAGE_SIZE-len,
					"   Menlo Maint Mode\n");
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		else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
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			if (vport->fc_flag & FC_PUBLIC_LOOP)
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				len += snprintf(buf + len, PAGE_SIZE-len,
						"   Public Loop\n");
			else
				len += snprintf(buf + len, PAGE_SIZE-len,
						"   Private Loop\n");
		} else {
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			if (vport->fc_flag & FC_FABRIC)
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				len += snprintf(buf + len, PAGE_SIZE-len,
						"   Fabric\n");
			else
				len += snprintf(buf + len, PAGE_SIZE-len,
						"   Point-2-Point\n");
		}
	}
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	return len;
}

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/**
 * lpfc_link_state_store - Transition the link_state on an HBA port
 * @dev: class device that is converted into a Scsi_host.
 * @attr: device attribute, not used.
 * @buf: one or more lpfc_polling_flags values.
 * @count: not used.
 *
 * Returns:
 * -EINVAL if the buffer is not "up" or "down"
 * return from link state change function if non-zero
 * length of the buf on success
 **/
static ssize_t
lpfc_link_state_store(struct device *dev, struct device_attribute *attr,
		const char *buf, size_t count)
{
	struct Scsi_Host  *shost = class_to_shost(dev);
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;

	int status = -EINVAL;

	if ((strncmp(buf, "up", sizeof("up") - 1) == 0) &&
			(phba->link_state == LPFC_LINK_DOWN))
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		status = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
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	else if ((strncmp(buf, "down", sizeof("down") - 1) == 0) &&
			(phba->link_state >= LPFC_LINK_UP))
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		status = phba->lpfc_hba_down_link(phba, MBX_NOWAIT);
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	if (status == 0)
		return strlen(buf);
	else
		return status;
}

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/**
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 * lpfc_num_discovered_ports_show - Return sum of mapped and unmapped vports
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 * @dev: class device that is converted into a Scsi_host.
 * @attr: device attribute, not used.
 * @buf: on return contains the sum of fc mapped and unmapped.
 *
 * Description:
 * Returns the ascii text number of the sum of the fc mapped and unmapped
 * vport counts.
 *
 * Returns: size of formatted string.
 **/
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static ssize_t
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lpfc_num_discovered_ports_show(struct device *dev,
			       struct device_attribute *attr, char *buf)
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{
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	struct Scsi_Host  *shost = class_to_shost(dev);
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	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;

	return snprintf(buf, PAGE_SIZE, "%d\n",
			vport->fc_map_cnt + vport->fc_unmap_cnt);
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}

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/**
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 * lpfc_issue_lip - Misnomer, name carried over from long ago
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 * @shost: Scsi_Host pointer.
 *
 * Description:
 * Bring the link down gracefully then re-init the link. The firmware will
 * re-init the fiber channel interface as required. Does not issue a LIP.
 *
 * Returns:
 * -EPERM port offline or management commands are being blocked
 * -ENOMEM cannot allocate memory for the mailbox command
 * -EIO error sending the mailbox command
 * zero for success
 **/
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static int
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lpfc_issue_lip(struct Scsi_Host *shost)
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{
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	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
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	LPFC_MBOXQ_t *pmboxq;
	int mbxstatus = MBXERR_ERROR;

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562
	if ((vport->fc_flag & FC_OFFLINE_MODE) ||
563
	    (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO))
已提交
564 565 566 567 568 569 570 571
		return -EPERM;

	pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL);

	if (!pmboxq)
		return -ENOMEM;

	memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
572 573
	pmboxq->u.mb.mbxCommand = MBX_DOWN_LINK;
	pmboxq->u.mb.mbxOwner = OWN_HOST;
574

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575
	mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO * 2);
已提交
576

577 578 579
	if ((mbxstatus == MBX_SUCCESS) &&
	    (pmboxq->u.mb.mbxStatus == 0 ||
	     pmboxq->u.mb.mbxStatus == MBXERR_LINK_DOWN)) {
580 581 582 583 584
		memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
		lpfc_init_link(phba, pmboxq, phba->cfg_topology,
			       phba->cfg_link_speed);
		mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq,
						     phba->fc_ratov * 2);
585 586 587 588 589
		if ((mbxstatus == MBX_SUCCESS) &&
		    (pmboxq->u.mb.mbxStatus == MBXERR_SEC_NO_PERMISSION))
			lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
					"2859 SLI authentication is required "
					"for INIT_LINK but has not done yet\n");
590 591
	}

592
	lpfc_set_loopback_flag(phba);
J
James Smart 已提交
593
	if (mbxstatus != MBX_TIMEOUT)
594
		mempool_free(pmboxq, phba->mbox_mem_pool);
已提交
595 596 597 598

	if (mbxstatus == MBXERR_ERROR)
		return -EIO;

599
	return 0;
已提交
600 601
}

602
/**
603
 * lpfc_do_offline - Issues a mailbox command to bring the link down
604 605 606 607 608 609 610
 * @phba: lpfc_hba pointer.
 * @type: LPFC_EVT_OFFLINE, LPFC_EVT_WARM_START, LPFC_EVT_KILL.
 *
 * Notes:
 * Assumes any error from lpfc_do_offline() will be negative.
 * Can wait up to 5 seconds for the port ring buffers count
 * to reach zero, prints a warning if it is not zero and continues.
611
 * lpfc_workq_post_event() returns a non-zero return code if call fails.
612 613 614 615 616
 *
 * Returns:
 * -EIO error posting the event
 * zero for success
 **/
617
static int
618
lpfc_do_offline(struct lpfc_hba *phba, uint32_t type)
619 620
{
	struct completion online_compl;
621 622
	struct lpfc_sli_ring *pring;
	struct lpfc_sli *psli;
623
	int status = 0;
624 625
	int cnt = 0;
	int i;
626
	int rc;
627 628

	init_completion(&online_compl);
629
	rc = lpfc_workq_post_event(phba, &status, &online_compl,
630
			      LPFC_EVT_OFFLINE_PREP);
631 632 633
	if (rc == 0)
		return -ENOMEM;

634 635 636 637 638 639 640
	wait_for_completion(&online_compl);

	if (status != 0)
		return -EIO;

	psli = &phba->sli;

641 642 643
	/* Wait a little for things to settle down, but not
	 * long enough for dev loss timeout to expire.
	 */
644 645 646 647
	for (i = 0; i < psli->num_rings; i++) {
		pring = &psli->ring[i];
		while (pring->txcmplq_cnt) {
			msleep(10);
648
			if (cnt++ > 500) {  /* 5 secs */
649 650
				lpfc_printf_log(phba,
					KERN_WARNING, LOG_INIT,
651 652
					"0466 Outstanding IO when "
					"bringing Adapter offline\n");
653 654 655 656 657 658
				break;
			}
		}
	}

	init_completion(&online_compl);
659 660 661 662
	rc = lpfc_workq_post_event(phba, &status, &online_compl, type);
	if (rc == 0)
		return -ENOMEM;

663 664 665 666 667
	wait_for_completion(&online_compl);

	if (status != 0)
		return -EIO;

668 669 670
	return 0;
}

671
/**
672
 * lpfc_selective_reset - Offline then onlines the port
673 674 675 676 677 678 679 680
 * @phba: lpfc_hba pointer.
 *
 * Description:
 * If the port is configured to allow a reset then the hba is brought
 * offline then online.
 *
 * Notes:
 * Assumes any error from lpfc_do_offline() will be negative.
681
 * Do not make this function static.
682 683 684 685 686 687
 *
 * Returns:
 * lpfc_do_offline() return code if not zero
 * -EIO reset not configured or error posting the event
 * zero for success
 **/
688
int
689 690 691 692
lpfc_selective_reset(struct lpfc_hba *phba)
{
	struct completion online_compl;
	int status = 0;
693
	int rc;
694

695 696 697
	if (!phba->cfg_enable_hba_reset)
		return -EIO;

698 699 700 701 702
	status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);

	if (status != 0)
		return status;

703
	init_completion(&online_compl);
704
	rc = lpfc_workq_post_event(phba, &status, &online_compl,
705
			      LPFC_EVT_ONLINE);
706 707 708
	if (rc == 0)
		return -ENOMEM;

709 710 711 712 713 714 715 716
	wait_for_completion(&online_compl);

	if (status != 0)
		return -EIO;

	return 0;
}

717
/**
718
 * lpfc_issue_reset - Selectively resets an adapter
719 720 721 722 723 724 725 726 727 728 729 730
 * @dev: class device that is converted into a Scsi_host.
 * @attr: device attribute, not used.
 * @buf: containing the string "selective".
 * @count: unused variable.
 *
 * Description:
 * If the buf contains the string "selective" then lpfc_selective_reset()
 * is called to perform the reset.
 *
 * Notes:
 * Assumes any error from lpfc_selective_reset() will be negative.
 * If lpfc_selective_reset() returns zero then the length of the buffer
731
 * is returned which indicates success
732 733 734 735 736 737
 *
 * Returns:
 * -EINVAL if the buffer does not contain the string "selective"
 * length of buf if lpfc-selective_reset() if the call succeeds
 * return value of lpfc_selective_reset() if the call fails
**/
738
static ssize_t
739 740
lpfc_issue_reset(struct device *dev, struct device_attribute *attr,
		 const char *buf, size_t count)
741
{
742
	struct Scsi_Host  *shost = class_to_shost(dev);
J
James Smart 已提交
743 744 745
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;

746 747 748
	int status = -EINVAL;

	if (strncmp(buf, "selective", sizeof("selective") - 1) == 0)
749
		status = phba->lpfc_selective_reset(phba);
750 751 752 753 754 755 756

	if (status == 0)
		return strlen(buf);
	else
		return status;
}

757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797
/**
 * lpfc_sli4_pdev_status_reg_wait - Wait for pdev status register for readyness
 * @phba: lpfc_hba pointer.
 *
 * Description:
 * SLI4 interface type-2 device to wait on the sliport status register for
 * the readyness after performing a firmware reset.
 *
 * Returns:
 * zero for success
 **/
static int
lpfc_sli4_pdev_status_reg_wait(struct lpfc_hba *phba)
{
	struct lpfc_register portstat_reg;
	int i;


	lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
		   &portstat_reg.word0);

	/* wait for the SLI port firmware ready after firmware reset */
	for (i = 0; i < LPFC_FW_RESET_MAXIMUM_WAIT_10MS_CNT; i++) {
		msleep(10);
		lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
			   &portstat_reg.word0);
		if (!bf_get(lpfc_sliport_status_err, &portstat_reg))
			continue;
		if (!bf_get(lpfc_sliport_status_rn, &portstat_reg))
			continue;
		if (!bf_get(lpfc_sliport_status_rdy, &portstat_reg))
			continue;
		break;
	}

	if (i < LPFC_FW_RESET_MAXIMUM_WAIT_10MS_CNT)
		return 0;
	else
		return -EIO;
}

798
/**
799
 * lpfc_sli4_pdev_reg_request - Request physical dev to perform a register acc
800 801 802
 * @phba: lpfc_hba pointer.
 *
 * Description:
803 804
 * Request SLI4 interface type-2 device to perform a physical register set
 * access.
805 806 807 808 809
 *
 * Returns:
 * zero for success
 **/
static ssize_t
810
lpfc_sli4_pdev_reg_request(struct lpfc_hba *phba, uint32_t opcode)
811 812 813 814 815 816 817 818 819
{
	struct completion online_compl;
	uint32_t reg_val;
	int status = 0;
	int rc;

	if (!phba->cfg_enable_hba_reset)
		return -EIO;

820 821 822 823 824
	if ((phba->sli_rev < LPFC_SLI_REV4) ||
	    (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
	     LPFC_SLI_INTF_IF_TYPE_2))
		return -EPERM;

825 826 827 828 829 830 831 832 833 834
	status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);

	if (status != 0)
		return status;

	/* wait for the device to be quiesced before firmware reset */
	msleep(100);

	reg_val = readl(phba->sli4_hba.conf_regs_memmap_p +
			LPFC_CTL_PDEV_CTL_OFFSET);
835 836 837 838 839 840 841 842

	if (opcode == LPFC_FW_DUMP)
		reg_val |= LPFC_FW_DUMP_REQUEST;
	else if (opcode == LPFC_FW_RESET)
		reg_val |= LPFC_CTL_PDEV_CTL_FRST;
	else if (opcode == LPFC_DV_RESET)
		reg_val |= LPFC_CTL_PDEV_CTL_DRST;

843 844 845 846 847 848
	writel(reg_val, phba->sli4_hba.conf_regs_memmap_p +
	       LPFC_CTL_PDEV_CTL_OFFSET);
	/* flush */
	readl(phba->sli4_hba.conf_regs_memmap_p + LPFC_CTL_PDEV_CTL_OFFSET);

	/* delay driver action following IF_TYPE_2 reset */
849 850 851 852
	rc = lpfc_sli4_pdev_status_reg_wait(phba);

	if (rc)
		return -EIO;
853 854 855 856 857 858 859 860 861 862 863 864 865 866 867

	init_completion(&online_compl);
	rc = lpfc_workq_post_event(phba, &status, &online_compl,
				   LPFC_EVT_ONLINE);
	if (rc == 0)
		return -ENOMEM;

	wait_for_completion(&online_compl);

	if (status != 0)
		return -EIO;

	return 0;
}

868
/**
869
 * lpfc_nport_evt_cnt_show - Return the number of nport events
870 871 872 873 874 875
 * @dev: class device that is converted into a Scsi_host.
 * @attr: device attribute, not used.
 * @buf: on return contains the ascii number of nport events.
 *
 * Returns: size of formatted string.
 **/
已提交
876
static ssize_t
877 878
lpfc_nport_evt_cnt_show(struct device *dev, struct device_attribute *attr,
			char *buf)
已提交
879
{
880
	struct Scsi_Host  *shost = class_to_shost(dev);
J
James Smart 已提交
881 882 883
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;

已提交
884 885 886
	return snprintf(buf, PAGE_SIZE, "%d\n", phba->nport_event_cnt);
}

887
/**
888
 * lpfc_board_mode_show - Return the state of the board
889 890 891 892 893 894
 * @dev: class device that is converted into a Scsi_host.
 * @attr: device attribute, not used.
 * @buf: on return contains the state of the adapter.
 *
 * Returns: size of formatted string.
 **/
895
static ssize_t
896 897
lpfc_board_mode_show(struct device *dev, struct device_attribute *attr,
		     char *buf)
898
{
899
	struct Scsi_Host  *shost = class_to_shost(dev);
J
James Smart 已提交
900 901
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
902 903
	char  * state;

J
James Smart 已提交
904
	if (phba->link_state == LPFC_HBA_ERROR)
905
		state = "error";
J
James Smart 已提交
906
	else if (phba->link_state == LPFC_WARM_START)
907
		state = "warm start";
J
James Smart 已提交
908
	else if (phba->link_state == LPFC_INIT_START)
909 910 911 912 913 914 915
		state = "offline";
	else
		state = "online";

	return snprintf(buf, PAGE_SIZE, "%s\n", state);
}

916
/**
917
 * lpfc_board_mode_store - Puts the hba in online, offline, warm or error state
918 919 920 921 922 923 924 925 926 927 928
 * @dev: class device that is converted into a Scsi_host.
 * @attr: device attribute, not used.
 * @buf: containing one of the strings "online", "offline", "warm" or "error".
 * @count: unused variable.
 *
 * Returns:
 * -EACCES if enable hba reset not enabled
 * -EINVAL if the buffer does not contain a valid string (see above)
 * -EIO if lpfc_workq_post_event() or lpfc_do_offline() fails
 * buf length greater than zero indicates success
 **/
929
static ssize_t
930 931
lpfc_board_mode_store(struct device *dev, struct device_attribute *attr,
		      const char *buf, size_t count)
932
{
933
	struct Scsi_Host  *shost = class_to_shost(dev);
J
James Smart 已提交
934 935
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
936 937
	struct completion online_compl;
	int status=0;
938
	int rc;
939

940 941
	if (!phba->cfg_enable_hba_reset)
		return -EACCES;
942 943 944 945

	lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
		"3050 lpfc_board_mode set to %s\n", buf);

946 947
	init_completion(&online_compl);

948
	if(strncmp(buf, "online", sizeof("online") - 1) == 0) {
949
		rc = lpfc_workq_post_event(phba, &status, &online_compl,
950
				      LPFC_EVT_ONLINE);
951 952
		if (rc == 0)
			return -ENOMEM;
953 954 955
		wait_for_completion(&online_compl);
	} else if (strncmp(buf, "offline", sizeof("offline") - 1) == 0)
		status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
956
	else if (strncmp(buf, "warm", sizeof("warm") - 1) == 0)
957 958 959 960
		if (phba->sli_rev == LPFC_SLI_REV4)
			return -EINVAL;
		else
			status = lpfc_do_offline(phba, LPFC_EVT_WARM_START);
961
	else if (strncmp(buf, "error", sizeof("error") - 1) == 0)
962 963 964 965
		if (phba->sli_rev == LPFC_SLI_REV4)
			return -EINVAL;
		else
			status = lpfc_do_offline(phba, LPFC_EVT_KILL);
966
	else if (strncmp(buf, "dump", sizeof("dump") - 1) == 0)
967 968 969 970 971
		status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_DUMP);
	else if (strncmp(buf, "fw_reset", sizeof("fw_reset") - 1) == 0)
		status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_RESET);
	else if (strncmp(buf, "dv_reset", sizeof("dv_reset") - 1) == 0)
		status = lpfc_sli4_pdev_reg_request(phba, LPFC_DV_RESET);
972 973 974 975 976 977 978 979 980
	else
		return -EINVAL;

	if (!status)
		return strlen(buf);
	else
		return -EIO;
}

981
/**
982
 * lpfc_get_hba_info - Return various bits of informaton about the adapter
983
 * @phba: pointer to the adapter structure.
984 985 986 987 988 989
 * @mxri: max xri count.
 * @axri: available xri count.
 * @mrpi: max rpi count.
 * @arpi: available rpi count.
 * @mvpi: max vpi count.
 * @avpi: available vpi count.
990 991 992 993 994 995 996 997 998
 *
 * Description:
 * If an integer pointer for an count is not null then the value for the
 * count is returned.
 *
 * Returns:
 * zero on error
 * one for success
 **/
J
James Smart 已提交
999
static int
J
James Smart 已提交
1000 1001 1002 1003
lpfc_get_hba_info(struct lpfc_hba *phba,
		  uint32_t *mxri, uint32_t *axri,
		  uint32_t *mrpi, uint32_t *arpi,
		  uint32_t *mvpi, uint32_t *avpi)
1004
{
1005
	struct lpfc_mbx_read_config *rd_config;
1006 1007 1008
	LPFC_MBOXQ_t *pmboxq;
	MAILBOX_t *pmb;
	int rc = 0;
1009
	uint32_t max_vpi;
1010 1011 1012 1013 1014 1015 1016

	/*
	 * prevent udev from issuing mailbox commands until the port is
	 * configured.
	 */
	if (phba->link_state < LPFC_LINK_DOWN ||
	    !phba->mbox_mem_pool ||
1017
	    (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0)
1018 1019 1020 1021 1022 1023 1024 1025 1026 1027
		return 0;

	if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
		return 0;

	pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
	if (!pmboxq)
		return 0;
	memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));

1028
	pmb = &pmboxq->u.mb;
1029 1030 1031 1032
	pmb->mbxCommand = MBX_READ_CONFIG;
	pmb->mbxOwner = OWN_HOST;
	pmboxq->context1 = NULL;

1033
	if (phba->pport->fc_flag & FC_OFFLINE_MODE)
1034 1035 1036 1037 1038
		rc = MBX_NOT_FINISHED;
	else
		rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);

	if (rc != MBX_SUCCESS) {
J
James Smart 已提交
1039
		if (rc != MBX_TIMEOUT)
1040 1041 1042 1043
			mempool_free(pmboxq, phba->mbox_mem_pool);
		return 0;
	}

1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055
	if (phba->sli_rev == LPFC_SLI_REV4) {
		rd_config = &pmboxq->u.mqe.un.rd_config;
		if (mrpi)
			*mrpi = bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
		if (arpi)
			*arpi = bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config) -
					phba->sli4_hba.max_cfg_param.rpi_used;
		if (mxri)
			*mxri = bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
		if (axri)
			*axri = bf_get(lpfc_mbx_rd_conf_xri_count, rd_config) -
					phba->sli4_hba.max_cfg_param.xri_used;
1056 1057 1058 1059 1060 1061 1062

		/* Account for differences with SLI-3.  Get vpi count from
		 * mailbox data and subtract one for max vpi value.
		 */
		max_vpi = (bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config) > 0) ?
			(bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config) - 1) : 0;

1063
		if (mvpi)
1064
			*mvpi = max_vpi;
1065
		if (avpi)
1066
			*avpi = max_vpi - phba->sli4_hba.max_cfg_param.vpi_used;
1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080
	} else {
		if (mrpi)
			*mrpi = pmb->un.varRdConfig.max_rpi;
		if (arpi)
			*arpi = pmb->un.varRdConfig.avail_rpi;
		if (mxri)
			*mxri = pmb->un.varRdConfig.max_xri;
		if (axri)
			*axri = pmb->un.varRdConfig.avail_xri;
		if (mvpi)
			*mvpi = pmb->un.varRdConfig.max_vpi;
		if (avpi)
			*avpi = pmb->un.varRdConfig.avail_vpi;
	}
1081 1082 1083 1084 1085

	mempool_free(pmboxq, phba->mbox_mem_pool);
	return 1;
}

1086
/**
1087
 * lpfc_max_rpi_show - Return maximum rpi
1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099
 * @dev: class device that is converted into a Scsi_host.
 * @attr: device attribute, not used.
 * @buf: on return contains the maximum rpi count in decimal or "Unknown".
 *
 * Description:
 * Calls lpfc_get_hba_info() asking for just the mrpi count.
 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
 * to "Unknown" and the buffer length is returned, therefore the caller
 * must check for "Unknown" in the buffer to detect a failure.
 *
 * Returns: size of formatted string.
 **/
1100
static ssize_t
1101 1102
lpfc_max_rpi_show(struct device *dev, struct device_attribute *attr,
		  char *buf)
1103
{
1104
	struct Scsi_Host  *shost = class_to_shost(dev);
1105 1106 1107 1108
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
	uint32_t cnt;

J
James Smart 已提交
1109
	if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, NULL, NULL, NULL))
1110 1111 1112 1113
		return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
	return snprintf(buf, PAGE_SIZE, "Unknown\n");
}

1114
/**
1115
 * lpfc_used_rpi_show - Return maximum rpi minus available rpi
1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127
 * @dev: class device that is converted into a Scsi_host.
 * @attr: device attribute, not used.
 * @buf: containing the used rpi count in decimal or "Unknown".
 *
 * Description:
 * Calls lpfc_get_hba_info() asking for just the mrpi and arpi counts.
 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
 * to "Unknown" and the buffer length is returned, therefore the caller
 * must check for "Unknown" in the buffer to detect a failure.
 *
 * Returns: size of formatted string.
 **/
1128
static ssize_t
1129 1130
lpfc_used_rpi_show(struct device *dev, struct device_attribute *attr,
		   char *buf)
1131
{
1132
	struct Scsi_Host  *shost = class_to_shost(dev);
1133 1134 1135 1136
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
	uint32_t cnt, acnt;

J
James Smart 已提交
1137
	if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, &acnt, NULL, NULL))
1138 1139 1140 1141
		return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
	return snprintf(buf, PAGE_SIZE, "Unknown\n");
}

1142
/**
1143
 * lpfc_max_xri_show - Return maximum xri
1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155
 * @dev: class device that is converted into a Scsi_host.
 * @attr: device attribute, not used.
 * @buf: on return contains the maximum xri count in decimal or "Unknown".
 *
 * Description:
 * Calls lpfc_get_hba_info() asking for just the mrpi count.
 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
 * to "Unknown" and the buffer length is returned, therefore the caller
 * must check for "Unknown" in the buffer to detect a failure.
 *
 * Returns: size of formatted string.
 **/
1156
static ssize_t
1157 1158
lpfc_max_xri_show(struct device *dev, struct device_attribute *attr,
		  char *buf)
1159
{
1160
	struct Scsi_Host  *shost = class_to_shost(dev);
1161 1162 1163 1164
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
	uint32_t cnt;

J
James Smart 已提交
1165
	if (lpfc_get_hba_info(phba, &cnt, NULL, NULL, NULL, NULL, NULL))
1166 1167 1168 1169
		return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
	return snprintf(buf, PAGE_SIZE, "Unknown\n");
}

1170
/**
1171
 * lpfc_used_xri_show - Return maximum xpi minus the available xpi
1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183
 * @dev: class device that is converted into a Scsi_host.
 * @attr: device attribute, not used.
 * @buf: on return contains the used xri count in decimal or "Unknown".
 *
 * Description:
 * Calls lpfc_get_hba_info() asking for just the mxri and axri counts.
 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
 * to "Unknown" and the buffer length is returned, therefore the caller
 * must check for "Unknown" in the buffer to detect a failure.
 *
 * Returns: size of formatted string.
 **/
1184
static ssize_t
1185 1186
lpfc_used_xri_show(struct device *dev, struct device_attribute *attr,
		   char *buf)
1187
{
1188
	struct Scsi_Host  *shost = class_to_shost(dev);
1189 1190 1191 1192
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
	uint32_t cnt, acnt;

J
James Smart 已提交
1193 1194 1195 1196 1197
	if (lpfc_get_hba_info(phba, &cnt, &acnt, NULL, NULL, NULL, NULL))
		return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
	return snprintf(buf, PAGE_SIZE, "Unknown\n");
}

1198
/**
1199
 * lpfc_max_vpi_show - Return maximum vpi
1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211
 * @dev: class device that is converted into a Scsi_host.
 * @attr: device attribute, not used.
 * @buf: on return contains the maximum vpi count in decimal or "Unknown".
 *
 * Description:
 * Calls lpfc_get_hba_info() asking for just the mvpi count.
 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
 * to "Unknown" and the buffer length is returned, therefore the caller
 * must check for "Unknown" in the buffer to detect a failure.
 *
 * Returns: size of formatted string.
 **/
J
James Smart 已提交
1212
static ssize_t
1213 1214
lpfc_max_vpi_show(struct device *dev, struct device_attribute *attr,
		  char *buf)
J
James Smart 已提交
1215
{
1216
	struct Scsi_Host  *shost = class_to_shost(dev);
J
James Smart 已提交
1217 1218 1219 1220 1221 1222 1223 1224 1225
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
	uint32_t cnt;

	if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, NULL))
		return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
	return snprintf(buf, PAGE_SIZE, "Unknown\n");
}

1226
/**
1227
 * lpfc_used_vpi_show - Return maximum vpi minus the available vpi
1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239
 * @dev: class device that is converted into a Scsi_host.
 * @attr: device attribute, not used.
 * @buf: on return contains the used vpi count in decimal or "Unknown".
 *
 * Description:
 * Calls lpfc_get_hba_info() asking for just the mvpi and avpi counts.
 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
 * to "Unknown" and the buffer length is returned, therefore the caller
 * must check for "Unknown" in the buffer to detect a failure.
 *
 * Returns: size of formatted string.
 **/
J
James Smart 已提交
1240
static ssize_t
1241 1242
lpfc_used_vpi_show(struct device *dev, struct device_attribute *attr,
		   char *buf)
J
James Smart 已提交
1243
{
1244
	struct Scsi_Host  *shost = class_to_shost(dev);
J
James Smart 已提交
1245 1246 1247 1248 1249
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
	uint32_t cnt, acnt;

	if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, &acnt))
1250 1251 1252 1253
		return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
	return snprintf(buf, PAGE_SIZE, "Unknown\n");
}

1254
/**
1255
 * lpfc_npiv_info_show - Return text about NPIV support for the adapter
1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266
 * @dev: class device that is converted into a Scsi_host.
 * @attr: device attribute, not used.
 * @buf: text that must be interpreted to determine if npiv is supported.
 *
 * Description:
 * Buffer will contain text indicating npiv is not suppoerted on the port,
 * the port is an NPIV physical port, or it is an npiv virtual port with
 * the id of the vport.
 *
 * Returns: size of formatted string.
 **/
1267
static ssize_t
1268 1269
lpfc_npiv_info_show(struct device *dev, struct device_attribute *attr,
		    char *buf)
1270
{
1271
	struct Scsi_Host  *shost = class_to_shost(dev);
1272 1273 1274 1275 1276 1277 1278 1279 1280 1281
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;

	if (!(phba->max_vpi))
		return snprintf(buf, PAGE_SIZE, "NPIV Not Supported\n");
	if (vport->port_type == LPFC_PHYSICAL_PORT)
		return snprintf(buf, PAGE_SIZE, "NPIV Physical\n");
	return snprintf(buf, PAGE_SIZE, "NPIV Virtual (VPI %d)\n", vport->vpi);
}

1282
/**
1283
 * lpfc_poll_show - Return text about poll support for the adapter
1284 1285 1286 1287 1288 1289 1290 1291 1292
 * @dev: class device that is converted into a Scsi_host.
 * @attr: device attribute, not used.
 * @buf: on return contains the cfg_poll in hex.
 *
 * Notes:
 * cfg_poll should be a lpfc_polling_flags type.
 *
 * Returns: size of formatted string.
 **/
1293
static ssize_t
1294 1295
lpfc_poll_show(struct device *dev, struct device_attribute *attr,
	       char *buf)
1296
{
1297
	struct Scsi_Host  *shost = class_to_shost(dev);
J
James Smart 已提交
1298 1299
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
1300 1301 1302 1303

	return snprintf(buf, PAGE_SIZE, "%#x\n", phba->cfg_poll);
}

1304
/**
1305
 * lpfc_poll_store - Set the value of cfg_poll for the adapter
1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317
 * @dev: class device that is converted into a Scsi_host.
 * @attr: device attribute, not used.
 * @buf: one or more lpfc_polling_flags values.
 * @count: not used.
 *
 * Notes:
 * buf contents converted to integer and checked for a valid value.
 *
 * Returns:
 * -EINVAL if the buffer connot be converted or is out of range
 * length of the buf on success
 **/
1318
static ssize_t
1319 1320
lpfc_poll_store(struct device *dev, struct device_attribute *attr,
		const char *buf, size_t count)
1321
{
1322
	struct Scsi_Host  *shost = class_to_shost(dev);
J
James Smart 已提交
1323 1324
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337
	uint32_t creg_val;
	uint32_t old_val;
	int val=0;

	if (!isdigit(buf[0]))
		return -EINVAL;

	if (sscanf(buf, "%i", &val) != 1)
		return -EINVAL;

	if ((val & 0x3) != val)
		return -EINVAL;

1338 1339 1340
	if (phba->sli_rev == LPFC_SLI_REV4)
		val = 0;

1341 1342 1343 1344
	lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
		"3051 lpfc_poll changed from %d to %d\n",
		phba->cfg_poll, val);

J
James Smart 已提交
1345
	spin_lock_irq(&phba->hbalock);
1346 1347 1348 1349 1350 1351

	old_val = phba->cfg_poll;

	if (val & ENABLE_FCP_RING_POLLING) {
		if ((val & DISABLE_FCP_RING_INT) &&
		    !(old_val & DISABLE_FCP_RING_INT)) {
1352 1353 1354 1355
			if (lpfc_readl(phba->HCregaddr, &creg_val)) {
				spin_unlock_irq(&phba->hbalock);
				return -EINVAL;
			}
1356 1357 1358 1359 1360 1361 1362
			creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
			writel(creg_val, phba->HCregaddr);
			readl(phba->HCregaddr); /* flush */

			lpfc_poll_start_timer(phba);
		}
	} else if (val != 0x0) {
J
James Smart 已提交
1363
		spin_unlock_irq(&phba->hbalock);
1364 1365 1366 1367 1368 1369
		return -EINVAL;
	}

	if (!(val & DISABLE_FCP_RING_INT) &&
	    (old_val & DISABLE_FCP_RING_INT))
	{
J
James Smart 已提交
1370
		spin_unlock_irq(&phba->hbalock);
1371
		del_timer(&phba->fcp_poll_timer);
J
James Smart 已提交
1372
		spin_lock_irq(&phba->hbalock);
1373 1374 1375 1376
		if (lpfc_readl(phba->HCregaddr, &creg_val)) {
			spin_unlock_irq(&phba->hbalock);
			return -EINVAL;
		}
1377 1378 1379 1380 1381 1382 1383
		creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
		writel(creg_val, phba->HCregaddr);
		readl(phba->HCregaddr); /* flush */
	}

	phba->cfg_poll = val;

J
James Smart 已提交
1384
	spin_unlock_irq(&phba->hbalock);
1385 1386 1387

	return strlen(buf);
}
已提交
1388

1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426
/**
 * lpfc_fips_level_show - Return the current FIPS level for the HBA
 * @dev: class unused variable.
 * @attr: device attribute, not used.
 * @buf: on return contains the module description text.
 *
 * Returns: size of formatted string.
 **/
static ssize_t
lpfc_fips_level_show(struct device *dev,  struct device_attribute *attr,
		     char *buf)
{
	struct Scsi_Host  *shost = class_to_shost(dev);
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;

	return snprintf(buf, PAGE_SIZE, "%d\n", phba->fips_level);
}

/**
 * lpfc_fips_rev_show - Return the FIPS Spec revision for the HBA
 * @dev: class unused variable.
 * @attr: device attribute, not used.
 * @buf: on return contains the module description text.
 *
 * Returns: size of formatted string.
 **/
static ssize_t
lpfc_fips_rev_show(struct device *dev,  struct device_attribute *attr,
		   char *buf)
{
	struct Scsi_Host  *shost = class_to_shost(dev);
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;

	return snprintf(buf, PAGE_SIZE, "%d\n", phba->fips_spec_rev);
}

1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448
/**
 * lpfc_dss_show - Return the current state of dss and the configured state
 * @dev: class converted to a Scsi_host structure.
 * @attr: device attribute, not used.
 * @buf: on return contains the formatted text.
 *
 * Returns: size of formatted string.
 **/
static ssize_t
lpfc_dss_show(struct device *dev, struct device_attribute *attr,
	      char *buf)
{
	struct Scsi_Host *shost = class_to_shost(dev);
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;

	return snprintf(buf, PAGE_SIZE, "%s - %sOperational\n",
			(phba->cfg_enable_dss) ? "Enabled" : "Disabled",
			(phba->sli3_options & LPFC_SLI3_DSS_ENABLED) ?
				"" : "Not ");
}

1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468
/**
 * lpfc_sriov_hw_max_virtfn_show - Return maximum number of virtual functions
 * @dev: class converted to a Scsi_host structure.
 * @attr: device attribute, not used.
 * @buf: on return contains the formatted support level.
 *
 * Description:
 * Returns the maximum number of virtual functions a physical function can
 * support, 0 will be returned if called on virtual function.
 *
 * Returns: size of formatted string.
 **/
static ssize_t
lpfc_sriov_hw_max_virtfn_show(struct device *dev,
			      struct device_attribute *attr,
			      char *buf)
{
	struct Scsi_Host *shost = class_to_shost(dev);
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba *phba = vport->phba;
1469
	uint16_t max_nr_virtfn;
1470

1471 1472
	max_nr_virtfn = lpfc_sli_sriov_nr_virtfn_get(phba);
	return snprintf(buf, PAGE_SIZE, "%d\n", max_nr_virtfn);
1473 1474
}

1475
/**
1476
 * lpfc_param_show - Return a cfg attribute value in decimal
1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488
 *
 * Description:
 * Macro that given an attr e.g. hba_queue_depth expands
 * into a function with the name lpfc_hba_queue_depth_show.
 *
 * lpfc_##attr##_show: Return the decimal value of an adapters cfg_xxx field.
 * @dev: class device that is converted into a Scsi_host.
 * @attr: device attribute, not used.
 * @buf: on return contains the attribute value in decimal.
 *
 * Returns: size of formatted string.
 **/
已提交
1489 1490
#define lpfc_param_show(attr)	\
static ssize_t \
1491 1492
lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
		   char *buf) \
已提交
1493
{ \
1494
	struct Scsi_Host  *shost = class_to_shost(dev);\
J
James Smart 已提交
1495 1496
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
	struct lpfc_hba   *phba = vport->phba;\
1497
	uint val = 0;\
1498 1499 1500 1501 1502
	val = phba->cfg_##attr;\
	return snprintf(buf, PAGE_SIZE, "%d\n",\
			phba->cfg_##attr);\
}

1503
/**
1504
 * lpfc_param_hex_show - Return a cfg attribute value in hex
1505 1506 1507 1508 1509 1510 1511 1512
 *
 * Description:
 * Macro that given an attr e.g. hba_queue_depth expands
 * into a function with the name lpfc_hba_queue_depth_show
 *
 * lpfc_##attr##_show: Return the hex value of an adapters cfg_xxx field.
 * @dev: class device that is converted into a Scsi_host.
 * @attr: device attribute, not used.
1513
 * @buf: on return contains the attribute value in hexadecimal.
1514 1515 1516
 *
 * Returns: size of formatted string.
 **/
1517 1518
#define lpfc_param_hex_show(attr)	\
static ssize_t \
1519 1520
lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
		   char *buf) \
1521
{ \
1522
	struct Scsi_Host  *shost = class_to_shost(dev);\
J
James Smart 已提交
1523 1524
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
	struct lpfc_hba   *phba = vport->phba;\
1525
	uint val = 0;\
1526 1527 1528 1529 1530
	val = phba->cfg_##attr;\
	return snprintf(buf, PAGE_SIZE, "%#x\n",\
			phba->cfg_##attr);\
}

1531
/**
1532
 * lpfc_param_init - Initializes a cfg attribute
1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549
 *
 * Description:
 * Macro that given an attr e.g. hba_queue_depth expands
 * into a function with the name lpfc_hba_queue_depth_init. The macro also
 * takes a default argument, a minimum and maximum argument.
 *
 * lpfc_##attr##_init: Initializes an attribute.
 * @phba: pointer the the adapter structure.
 * @val: integer attribute value.
 *
 * Validates the min and max values then sets the adapter config field
 * accordingly, or uses the default if out of range and prints an error message.
 *
 * Returns:
 * zero on success
 * -EINVAL if default used
 **/
1550 1551
#define lpfc_param_init(attr, default, minval, maxval)	\
static int \
1552
lpfc_##attr##_init(struct lpfc_hba *phba, uint val) \
1553 1554 1555 1556
{ \
	if (val >= minval && val <= maxval) {\
		phba->cfg_##attr = val;\
		return 0;\
已提交
1557
	}\
1558
	lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
1559 1560
			"0449 lpfc_"#attr" attribute cannot be set to %d, "\
			"allowed range is ["#minval", "#maxval"]\n", val); \
1561 1562
	phba->cfg_##attr = default;\
	return -EINVAL;\
已提交
1563 1564
}

1565
/**
1566
 * lpfc_param_set - Set a cfg attribute value
1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584
 *
 * Description:
 * Macro that given an attr e.g. hba_queue_depth expands
 * into a function with the name lpfc_hba_queue_depth_set
 *
 * lpfc_##attr##_set: Sets an attribute value.
 * @phba: pointer the the adapter structure.
 * @val: integer attribute value.
 *
 * Description:
 * Validates the min and max values then sets the
 * adapter config field if in the valid range. prints error message
 * and does not set the parameter if invalid.
 *
 * Returns:
 * zero on success
 * -EINVAL if val is invalid
 **/
1585 1586
#define lpfc_param_set(attr, default, minval, maxval)	\
static int \
1587
lpfc_##attr##_set(struct lpfc_hba *phba, uint val) \
1588 1589
{ \
	if (val >= minval && val <= maxval) {\
1590 1591 1592
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
			"3052 lpfc_" #attr " changed from %d to %d\n", \
			phba->cfg_##attr, val); \
1593 1594 1595 1596
		phba->cfg_##attr = val;\
		return 0;\
	}\
	lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
1597 1598
			"0450 lpfc_"#attr" attribute cannot be set to %d, "\
			"allowed range is ["#minval", "#maxval"]\n", val); \
1599 1600 1601
	return -EINVAL;\
}

1602
/**
1603
 * lpfc_param_store - Set a vport attribute value
1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622
 *
 * Description:
 * Macro that given an attr e.g. hba_queue_depth expands
 * into a function with the name lpfc_hba_queue_depth_store.
 *
 * lpfc_##attr##_store: Set an sttribute value.
 * @dev: class device that is converted into a Scsi_host.
 * @attr: device attribute, not used.
 * @buf: contains the attribute value in ascii.
 * @count: not used.
 *
 * Description:
 * Convert the ascii text number to an integer, then
 * use the lpfc_##attr##_set function to set the value.
 *
 * Returns:
 * -EINVAL if val is invalid or lpfc_##attr##_set() fails
 * length of buffer upon success.
 **/
1623
#define lpfc_param_store(attr)	\
已提交
1624
static ssize_t \
1625 1626
lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \
		    const char *buf, size_t count) \
已提交
1627
{ \
1628
	struct Scsi_Host  *shost = class_to_shost(dev);\
J
James Smart 已提交
1629 1630
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
	struct lpfc_hba   *phba = vport->phba;\
1631
	uint val = 0;\
1632 1633 1634 1635
	if (!isdigit(buf[0]))\
		return -EINVAL;\
	if (sscanf(buf, "%i", &val) != 1)\
		return -EINVAL;\
1636
	if (lpfc_##attr##_set(phba, val) == 0) \
1637
		return strlen(buf);\
1638 1639
	else \
		return -EINVAL;\
已提交
1640 1641
}

1642
/**
1643
 * lpfc_vport_param_show - Return decimal formatted cfg attribute value
1644 1645 1646 1647 1648 1649 1650 1651 1652 1653 1654 1655
 *
 * Description:
 * Macro that given an attr e.g. hba_queue_depth expands
 * into a function with the name lpfc_hba_queue_depth_show
 *
 * lpfc_##attr##_show: prints the attribute value in decimal.
 * @dev: class device that is converted into a Scsi_host.
 * @attr: device attribute, not used.
 * @buf: on return contains the attribute value in decimal.
 *
 * Returns: length of formatted string.
 **/
1656 1657
#define lpfc_vport_param_show(attr)	\
static ssize_t \
1658 1659
lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
		   char *buf) \
1660
{ \
1661
	struct Scsi_Host  *shost = class_to_shost(dev);\
1662
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1663
	uint val = 0;\
1664 1665 1666 1667
	val = vport->cfg_##attr;\
	return snprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_##attr);\
}

1668
/**
1669
 * lpfc_vport_param_hex_show - Return hex formatted attribute value
1670 1671 1672 1673 1674 1675
 *
 * Description:
 * Macro that given an attr e.g.
 * hba_queue_depth expands into a function with the name
 * lpfc_hba_queue_depth_show
 *
1676
 * lpfc_##attr##_show: prints the attribute value in hexadecimal.
1677 1678
 * @dev: class device that is converted into a Scsi_host.
 * @attr: device attribute, not used.
1679
 * @buf: on return contains the attribute value in hexadecimal.
1680 1681 1682
 *
 * Returns: length of formatted string.
 **/
1683 1684
#define lpfc_vport_param_hex_show(attr)	\
static ssize_t \
1685 1686
lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
		   char *buf) \
1687
{ \
1688
	struct Scsi_Host  *shost = class_to_shost(dev);\
1689
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1690
	uint val = 0;\
1691 1692 1693 1694
	val = vport->cfg_##attr;\
	return snprintf(buf, PAGE_SIZE, "%#x\n", vport->cfg_##attr);\
}

1695
/**
1696
 * lpfc_vport_param_init - Initialize a vport cfg attribute
1697 1698 1699 1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712
 *
 * Description:
 * Macro that given an attr e.g. hba_queue_depth expands
 * into a function with the name lpfc_hba_queue_depth_init. The macro also
 * takes a default argument, a minimum and maximum argument.
 *
 * lpfc_##attr##_init: validates the min and max values then sets the
 * adapter config field accordingly, or uses the default if out of range
 * and prints an error message.
 * @phba: pointer the the adapter structure.
 * @val: integer attribute value.
 *
 * Returns:
 * zero on success
 * -EINVAL if default used
 **/
1713 1714
#define lpfc_vport_param_init(attr, default, minval, maxval)	\
static int \
1715
lpfc_##attr##_init(struct lpfc_vport *vport, uint val) \
1716 1717 1718 1719 1720
{ \
	if (val >= minval && val <= maxval) {\
		vport->cfg_##attr = val;\
		return 0;\
	}\
1721
	lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
1722
			 "0423 lpfc_"#attr" attribute cannot be set to %d, "\
1723
			 "allowed range is ["#minval", "#maxval"]\n", val); \
1724 1725 1726 1727
	vport->cfg_##attr = default;\
	return -EINVAL;\
}

1728
/**
1729
 * lpfc_vport_param_set - Set a vport cfg attribute
1730 1731 1732 1733 1734 1735 1736 1737 1738 1739 1740 1741 1742 1743 1744
 *
 * Description:
 * Macro that given an attr e.g. hba_queue_depth expands
 * into a function with the name lpfc_hba_queue_depth_set
 *
 * lpfc_##attr##_set: validates the min and max values then sets the
 * adapter config field if in the valid range. prints error message
 * and does not set the parameter if invalid.
 * @phba: pointer the the adapter structure.
 * @val:	integer attribute value.
 *
 * Returns:
 * zero on success
 * -EINVAL if val is invalid
 **/
1745 1746
#define lpfc_vport_param_set(attr, default, minval, maxval)	\
static int \
1747
lpfc_##attr##_set(struct lpfc_vport *vport, uint val) \
1748 1749
{ \
	if (val >= minval && val <= maxval) {\
1750 1751 1752
		lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
			"3053 lpfc_" #attr " changed from %d to %d\n", \
			vport->cfg_##attr, val); \
1753 1754 1755
		vport->cfg_##attr = val;\
		return 0;\
	}\
1756
	lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
1757
			 "0424 lpfc_"#attr" attribute cannot be set to %d, "\
1758
			 "allowed range is ["#minval", "#maxval"]\n", val); \
1759 1760 1761
	return -EINVAL;\
}

1762
/**
1763
 * lpfc_vport_param_store - Set a vport attribute
1764 1765 1766 1767 1768 1769 1770 1771 1772 1773 1774 1775 1776 1777 1778
 *
 * Description:
 * Macro that given an attr e.g. hba_queue_depth
 * expands into a function with the name lpfc_hba_queue_depth_store
 *
 * lpfc_##attr##_store: convert the ascii text number to an integer, then
 * use the lpfc_##attr##_set function to set the value.
 * @cdev: class device that is converted into a Scsi_host.
 * @buf:	contains the attribute value in decimal.
 * @count: not used.
 *
 * Returns:
 * -EINVAL if val is invalid or lpfc_##attr##_set() fails
 * length of buffer upon success.
 **/
1779 1780
#define lpfc_vport_param_store(attr)	\
static ssize_t \
1781 1782
lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \
		    const char *buf, size_t count) \
1783
{ \
1784
	struct Scsi_Host  *shost = class_to_shost(dev);\
1785
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1786
	uint val = 0;\
1787 1788 1789 1790 1791 1792 1793 1794 1795 1796 1797
	if (!isdigit(buf[0]))\
		return -EINVAL;\
	if (sscanf(buf, "%i", &val) != 1)\
		return -EINVAL;\
	if (lpfc_##attr##_set(vport, val) == 0) \
		return strlen(buf);\
	else \
		return -EINVAL;\
}


1798
#define LPFC_ATTR(name, defval, minval, maxval, desc) \
1799
static uint lpfc_##name = defval;\
1800
module_param(lpfc_##name, uint, S_IRUGO);\
已提交
1801
MODULE_PARM_DESC(lpfc_##name, desc);\
1802
lpfc_param_init(name, defval, minval, maxval)
已提交
1803 1804

#define LPFC_ATTR_R(name, defval, minval, maxval, desc) \
1805
static uint lpfc_##name = defval;\
1806
module_param(lpfc_##name, uint, S_IRUGO);\
已提交
1807 1808
MODULE_PARM_DESC(lpfc_##name, desc);\
lpfc_param_show(name)\
1809
lpfc_param_init(name, defval, minval, maxval)\
1810
static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
已提交
1811 1812

#define LPFC_ATTR_RW(name, defval, minval, maxval, desc) \
1813
static uint lpfc_##name = defval;\
1814
module_param(lpfc_##name, uint, S_IRUGO);\
已提交
1815 1816
MODULE_PARM_DESC(lpfc_##name, desc);\
lpfc_param_show(name)\
1817 1818 1819
lpfc_param_init(name, defval, minval, maxval)\
lpfc_param_set(name, defval, minval, maxval)\
lpfc_param_store(name)\
1820 1821
static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
		   lpfc_##name##_show, lpfc_##name##_store)
已提交
1822

1823
#define LPFC_ATTR_HEX_R(name, defval, minval, maxval, desc) \
1824
static uint lpfc_##name = defval;\
1825
module_param(lpfc_##name, uint, S_IRUGO);\
1826 1827 1828
MODULE_PARM_DESC(lpfc_##name, desc);\
lpfc_param_hex_show(name)\
lpfc_param_init(name, defval, minval, maxval)\
1829
static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
1830 1831

#define LPFC_ATTR_HEX_RW(name, defval, minval, maxval, desc) \
1832
static uint lpfc_##name = defval;\
1833
module_param(lpfc_##name, uint, S_IRUGO);\
1834 1835 1836 1837 1838
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)\
1839 1840
static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
		   lpfc_##name##_show, lpfc_##name##_store)
1841

1842
#define LPFC_VPORT_ATTR(name, defval, minval, maxval, desc) \
1843
static uint lpfc_##name = defval;\
1844
module_param(lpfc_##name, uint, S_IRUGO);\
1845 1846 1847 1848
MODULE_PARM_DESC(lpfc_##name, desc);\
lpfc_vport_param_init(name, defval, minval, maxval)

#define LPFC_VPORT_ATTR_R(name, defval, minval, maxval, desc) \
1849
static uint lpfc_##name = defval;\
1850
module_param(lpfc_##name, uint, S_IRUGO);\
1851 1852 1853
MODULE_PARM_DESC(lpfc_##name, desc);\
lpfc_vport_param_show(name)\
lpfc_vport_param_init(name, defval, minval, maxval)\
1854
static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
1855 1856

#define LPFC_VPORT_ATTR_RW(name, defval, minval, maxval, desc) \
1857
static uint lpfc_##name = defval;\
1858
module_param(lpfc_##name, uint, S_IRUGO);\
1859 1860 1861 1862 1863
MODULE_PARM_DESC(lpfc_##name, desc);\
lpfc_vport_param_show(name)\
lpfc_vport_param_init(name, defval, minval, maxval)\
lpfc_vport_param_set(name, defval, minval, maxval)\
lpfc_vport_param_store(name)\
1864 1865
static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
		   lpfc_##name##_show, lpfc_##name##_store)
1866 1867

#define LPFC_VPORT_ATTR_HEX_R(name, defval, minval, maxval, desc) \
1868
static uint lpfc_##name = defval;\
1869
module_param(lpfc_##name, uint, S_IRUGO);\
1870 1871 1872
MODULE_PARM_DESC(lpfc_##name, desc);\
lpfc_vport_param_hex_show(name)\
lpfc_vport_param_init(name, defval, minval, maxval)\
1873
static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
1874 1875

#define LPFC_VPORT_ATTR_HEX_RW(name, defval, minval, maxval, desc) \
1876
static uint lpfc_##name = defval;\
1877
module_param(lpfc_##name, uint, S_IRUGO);\
1878 1879 1880 1881 1882
MODULE_PARM_DESC(lpfc_##name, desc);\
lpfc_vport_param_hex_show(name)\
lpfc_vport_param_init(name, defval, minval, maxval)\
lpfc_vport_param_set(name, defval, minval, maxval)\
lpfc_vport_param_store(name)\
1883 1884 1885
static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
		   lpfc_##name##_show, lpfc_##name##_store)

1886 1887 1888 1889
static DEVICE_ATTR(bg_info, S_IRUGO, lpfc_bg_info_show, NULL);
static DEVICE_ATTR(bg_guard_err, S_IRUGO, lpfc_bg_guard_err_show, NULL);
static DEVICE_ATTR(bg_apptag_err, S_IRUGO, lpfc_bg_apptag_err_show, NULL);
static DEVICE_ATTR(bg_reftag_err, S_IRUGO, lpfc_bg_reftag_err_show, NULL);
1890 1891 1892 1893 1894 1895 1896 1897
static DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL);
static DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL);
static DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL);
static DEVICE_ATTR(modelname, S_IRUGO, lpfc_modelname_show, NULL);
static DEVICE_ATTR(programtype, S_IRUGO, lpfc_programtype_show, NULL);
static DEVICE_ATTR(portnum, S_IRUGO, lpfc_vportnum_show, NULL);
static DEVICE_ATTR(fwrev, S_IRUGO, lpfc_fwrev_show, NULL);
static DEVICE_ATTR(hdw, S_IRUGO, lpfc_hdw_show, NULL);
1898 1899
static DEVICE_ATTR(link_state, S_IRUGO | S_IWUSR, lpfc_link_state_show,
		lpfc_link_state_store);
1900 1901 1902 1903
static DEVICE_ATTR(option_rom_version, S_IRUGO,
		   lpfc_option_rom_version_show, NULL);
static DEVICE_ATTR(num_discovered_ports, S_IRUGO,
		   lpfc_num_discovered_ports_show, NULL);
1904
static DEVICE_ATTR(menlo_mgmt_mode, S_IRUGO, lpfc_mlomgmt_show, NULL);
1905 1906
static DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL);
static DEVICE_ATTR(lpfc_drvr_version, S_IRUGO, lpfc_drvr_version_show, NULL);
1907
static DEVICE_ATTR(lpfc_enable_fip, S_IRUGO, lpfc_enable_fip_show, NULL);
1908 1909 1910 1911 1912 1913 1914 1915 1916 1917 1918
static DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR,
		   lpfc_board_mode_show, lpfc_board_mode_store);
static DEVICE_ATTR(issue_reset, S_IWUSR, NULL, lpfc_issue_reset);
static DEVICE_ATTR(max_vpi, S_IRUGO, lpfc_max_vpi_show, NULL);
static DEVICE_ATTR(used_vpi, S_IRUGO, lpfc_used_vpi_show, NULL);
static DEVICE_ATTR(max_rpi, S_IRUGO, lpfc_max_rpi_show, NULL);
static DEVICE_ATTR(used_rpi, S_IRUGO, lpfc_used_rpi_show, NULL);
static DEVICE_ATTR(max_xri, S_IRUGO, lpfc_max_xri_show, NULL);
static DEVICE_ATTR(used_xri, S_IRUGO, lpfc_used_xri_show, NULL);
static DEVICE_ATTR(npiv_info, S_IRUGO, lpfc_npiv_info_show, NULL);
static DEVICE_ATTR(lpfc_temp_sensor, S_IRUGO, lpfc_temp_sensor_show, NULL);
1919 1920
static DEVICE_ATTR(lpfc_fips_level, S_IRUGO, lpfc_fips_level_show, NULL);
static DEVICE_ATTR(lpfc_fips_rev, S_IRUGO, lpfc_fips_rev_show, NULL);
1921
static DEVICE_ATTR(lpfc_dss, S_IRUGO, lpfc_dss_show, NULL);
1922 1923
static DEVICE_ATTR(lpfc_sriov_hw_max_virtfn, S_IRUGO,
		   lpfc_sriov_hw_max_virtfn_show, NULL);
1924

1925
static char *lpfc_soft_wwn_key = "C99G71SL8032A";
1926

1927
/**
1928
 * lpfc_soft_wwn_enable_store - Allows setting of the wwn if the key is valid
1929 1930 1931 1932 1933 1934 1935 1936 1937
 * @dev: class device that is converted into a Scsi_host.
 * @attr: device attribute, not used.
 * @buf: containing the string lpfc_soft_wwn_key.
 * @count: must be size of lpfc_soft_wwn_key.
 *
 * Returns:
 * -EINVAL if the buffer does not contain lpfc_soft_wwn_key
 * length of buf indicates success
 **/
1938
static ssize_t
1939 1940
lpfc_soft_wwn_enable_store(struct device *dev, struct device_attribute *attr,
			   const char *buf, size_t count)
1941
{
1942
	struct Scsi_Host  *shost = class_to_shost(dev);
J
James Smart 已提交
1943 1944
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963
	unsigned int cnt = count;

	/*
	 * We're doing a simple sanity check for soft_wwpn setting.
	 * We require that the user write a specific key to enable
	 * the soft_wwpn attribute to be settable. Once the attribute
	 * is written, the enable key resets. If further updates are
	 * desired, the key must be written again to re-enable the
	 * attribute.
	 *
	 * The "key" is not secret - it is a hardcoded string shown
	 * here. The intent is to protect against the random user or
	 * application that is just writing attributes.
	 */

	/* count may include a LF at end of string */
	if (buf[cnt-1] == '\n')
		cnt--;

1964 1965
	if ((cnt != strlen(lpfc_soft_wwn_key)) ||
	    (strncmp(buf, lpfc_soft_wwn_key, strlen(lpfc_soft_wwn_key)) != 0))
1966 1967
		return -EINVAL;

1968
	phba->soft_wwn_enable = 1;
1969 1970
	return count;
}
1971 1972
static DEVICE_ATTR(lpfc_soft_wwn_enable, S_IWUSR, NULL,
		   lpfc_soft_wwn_enable_store);
1973

1974
/**
1975
 * lpfc_soft_wwpn_show - Return the cfg soft ww port name of the adapter
1976 1977
 * @dev: class device that is converted into a Scsi_host.
 * @attr: device attribute, not used.
1978
 * @buf: on return contains the wwpn in hexadecimal.
1979 1980 1981
 *
 * Returns: size of formatted string.
 **/
1982
static ssize_t
1983 1984
lpfc_soft_wwpn_show(struct device *dev, struct device_attribute *attr,
		    char *buf)
1985
{
1986
	struct Scsi_Host  *shost = class_to_shost(dev);
J
James Smart 已提交
1987 1988 1989
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;

1990 1991
	return snprintf(buf, PAGE_SIZE, "0x%llx\n",
			(unsigned long long)phba->cfg_soft_wwpn);
1992 1993
}

1994
/**
1995
 * lpfc_soft_wwpn_store - Set the ww port name of the adapter
1996 1997
 * @dev class device that is converted into a Scsi_host.
 * @attr: device attribute, not used.
1998
 * @buf: contains the wwpn in hexadecimal.
1999 2000 2001 2002 2003 2004 2005 2006
 * @count: number of wwpn bytes in buf
 *
 * Returns:
 * -EACCES hba reset not enabled, adapter over temp
 * -EINVAL soft wwn not enabled, count is invalid, invalid wwpn byte invalid
 * -EIO error taking adapter offline or online
 * value of count on success
 **/
2007
static ssize_t
2008 2009
lpfc_soft_wwpn_store(struct device *dev, struct device_attribute *attr,
		     const char *buf, size_t count)
2010
{
2011
	struct Scsi_Host  *shost = class_to_shost(dev);
J
James Smart 已提交
2012 2013
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
2014 2015 2016 2017
	struct completion online_compl;
	int stat1=0, stat2=0;
	unsigned int i, j, cnt=count;
	u8 wwpn[8];
2018
	int rc;
2019

2020 2021
	if (!phba->cfg_enable_hba_reset)
		return -EACCES;
2022 2023 2024
	spin_lock_irq(&phba->hbalock);
	if (phba->over_temp_state == HBA_OVER_TEMP) {
		spin_unlock_irq(&phba->hbalock);
2025
		return -EACCES;
2026 2027
	}
	spin_unlock_irq(&phba->hbalock);
2028 2029 2030 2031
	/* count may include a LF at end of string */
	if (buf[cnt-1] == '\n')
		cnt--;

2032
	if (!phba->soft_wwn_enable || (cnt < 16) || (cnt > 18) ||
2033 2034 2035 2036
	    ((cnt == 17) && (*buf++ != 'x')) ||
	    ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x'))))
		return -EINVAL;

2037
	phba->soft_wwn_enable = 0;
2038 2039 2040 2041 2042

	memset(wwpn, 0, sizeof(wwpn));

	/* Validate and store the new name */
	for (i=0, j=0; i < 16; i++) {
2043 2044 2045 2046 2047
		int value;

		value = hex_to_bin(*buf++);
		if (value >= 0)
			j = (j << 4) | value;
2048 2049 2050 2051 2052 2053 2054 2055
		else
			return -EINVAL;
		if (i % 2) {
			wwpn[i/2] = j & 0xff;
			j = 0;
		}
	}
	phba->cfg_soft_wwpn = wwn_to_u64(wwpn);
J
James Smart 已提交
2056
	fc_host_port_name(shost) = phba->cfg_soft_wwpn;
2057
	if (phba->cfg_soft_wwnn)
J
James Smart 已提交
2058
		fc_host_node_name(shost) = phba->cfg_soft_wwnn;
2059 2060 2061 2062

	dev_printk(KERN_NOTICE, &phba->pcidev->dev,
		   "lpfc%d: Reinitializing to use soft_wwpn\n", phba->brd_no);

2063
	stat1 = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
2064 2065
	if (stat1)
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2066 2067
				"0463 lpfc_soft_wwpn attribute set failed to "
				"reinit adapter - %d\n", stat1);
2068
	init_completion(&online_compl);
2069 2070 2071 2072 2073
	rc = lpfc_workq_post_event(phba, &stat2, &online_compl,
				   LPFC_EVT_ONLINE);
	if (rc == 0)
		return -ENOMEM;

2074 2075 2076
	wait_for_completion(&online_compl);
	if (stat2)
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2077 2078
				"0464 lpfc_soft_wwpn attribute set failed to "
				"reinit adapter - %d\n", stat2);
2079 2080
	return (stat1 || stat2) ? -EIO : count;
}
2081 2082
static DEVICE_ATTR(lpfc_soft_wwpn, S_IRUGO | S_IWUSR,\
		   lpfc_soft_wwpn_show, lpfc_soft_wwpn_store);
2083

2084
/**
2085
 * lpfc_soft_wwnn_show - Return the cfg soft ww node name for the adapter
2086 2087
 * @dev: class device that is converted into a Scsi_host.
 * @attr: device attribute, not used.
2088
 * @buf: on return contains the wwnn in hexadecimal.
2089 2090 2091
 *
 * Returns: size of formatted string.
 **/
2092
static ssize_t
2093 2094
lpfc_soft_wwnn_show(struct device *dev, struct device_attribute *attr,
		    char *buf)
2095
{
2096
	struct Scsi_Host *shost = class_to_shost(dev);
2097
	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2098 2099 2100 2101
	return snprintf(buf, PAGE_SIZE, "0x%llx\n",
			(unsigned long long)phba->cfg_soft_wwnn);
}

2102
/**
2103
 * lpfc_soft_wwnn_store - sets the ww node name of the adapter
2104
 * @cdev: class device that is converted into a Scsi_host.
2105
 * @buf: contains the ww node name in hexadecimal.
2106 2107 2108 2109 2110 2111
 * @count: number of wwnn bytes in buf.
 *
 * Returns:
 * -EINVAL soft wwn not enabled, count is invalid, invalid wwnn byte invalid
 * value of count on success
 **/
2112
static ssize_t
2113 2114
lpfc_soft_wwnn_store(struct device *dev, struct device_attribute *attr,
		     const char *buf, size_t count)
2115
{
2116
	struct Scsi_Host *shost = class_to_shost(dev);
2117
	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2118 2119 2120 2121 2122 2123 2124 2125 2126 2127 2128 2129 2130 2131 2132 2133 2134 2135 2136 2137 2138
	unsigned int i, j, cnt=count;
	u8 wwnn[8];

	/* count may include a LF at end of string */
	if (buf[cnt-1] == '\n')
		cnt--;

	if (!phba->soft_wwn_enable || (cnt < 16) || (cnt > 18) ||
	    ((cnt == 17) && (*buf++ != 'x')) ||
	    ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x'))))
		return -EINVAL;

	/*
	 * Allow wwnn to be set many times, as long as the enable is set.
	 * However, once the wwpn is set, everything locks.
	 */

	memset(wwnn, 0, sizeof(wwnn));

	/* Validate and store the new name */
	for (i=0, j=0; i < 16; i++) {
2139 2140 2141 2142 2143
		int value;

		value = hex_to_bin(*buf++);
		if (value >= 0)
			j = (j << 4) | value;
2144 2145 2146 2147 2148 2149 2150 2151 2152 2153 2154 2155 2156 2157 2158
		else
			return -EINVAL;
		if (i % 2) {
			wwnn[i/2] = j & 0xff;
			j = 0;
		}
	}
	phba->cfg_soft_wwnn = wwn_to_u64(wwnn);

	dev_printk(KERN_NOTICE, &phba->pcidev->dev,
		   "lpfc%d: soft_wwnn set. Value will take effect upon "
		   "setting of the soft_wwpn\n", phba->brd_no);

	return count;
}
2159 2160
static DEVICE_ATTR(lpfc_soft_wwnn, S_IRUGO | S_IWUSR,\
		   lpfc_soft_wwnn_show, lpfc_soft_wwnn_store);
2161

2162

2163
static int lpfc_poll = 0;
2164
module_param(lpfc_poll, int, S_IRUGO);
2165 2166 2167 2168 2169
MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:"
		 " 0 - none,"
		 " 1 - poll with interrupts enabled"
		 " 3 - poll and disable FCP ring interrupts");

2170 2171
static DEVICE_ATTR(lpfc_poll, S_IRUGO | S_IWUSR,
		   lpfc_poll_show, lpfc_poll_store);
已提交
2172

2173
int  lpfc_sli_mode = 0;
2174
module_param(lpfc_sli_mode, int, S_IRUGO);
2175 2176 2177 2178 2179
MODULE_PARM_DESC(lpfc_sli_mode, "SLI mode selector:"
		 " 0 - auto (SLI-3 if supported),"
		 " 2 - select SLI-2 even on SLI-3 capable HBAs,"
		 " 3 - select SLI-3");

2180
int lpfc_enable_npiv = 1;
2181
module_param(lpfc_enable_npiv, int, S_IRUGO);
J
James Smart 已提交
2182 2183
MODULE_PARM_DESC(lpfc_enable_npiv, "Enable NPIV functionality");
lpfc_param_show(enable_npiv);
J
James Smart 已提交
2184
lpfc_param_init(enable_npiv, 1, 0, 1);
2185
static DEVICE_ATTR(lpfc_enable_npiv, S_IRUGO, lpfc_enable_npiv_show, NULL);
2186

2187
int lpfc_enable_rrq;
2188
module_param(lpfc_enable_rrq, int, S_IRUGO);
2189 2190 2191 2192 2193
MODULE_PARM_DESC(lpfc_enable_rrq, "Enable RRQ functionality");
lpfc_param_show(enable_rrq);
lpfc_param_init(enable_rrq, 0, 0, 1);
static DEVICE_ATTR(lpfc_enable_rrq, S_IRUGO, lpfc_enable_rrq_show, NULL);

2194 2195 2196 2197 2198 2199 2200
/*
# lpfc_suppress_link_up:  Bring link up at initialization
#            0x0  = bring link up (issue MBX_INIT_LINK)
#            0x1  = do NOT bring link up at initialization(MBX_INIT_LINK)
#            0x2  = never bring up link
# Default value is 0.
*/
2201 2202 2203
LPFC_ATTR_R(suppress_link_up, LPFC_INITIALIZE_LINK, LPFC_INITIALIZE_LINK,
		LPFC_DELAY_INIT_LINK_INDEFINITELY,
		"Suppress Link Up at initialization");
2204 2205 2206 2207 2208 2209 2210 2211 2212 2213 2214 2215 2216 2217 2218 2219 2220 2221 2222 2223 2224 2225 2226 2227 2228 2229 2230 2231 2232 2233 2234 2235 2236 2237 2238 2239 2240 2241 2242 2243 2244 2245 2246 2247 2248 2249
/*
# lpfc_cnt: Number of IOCBs allocated for ELS, CT, and ABTS
#       1 - (1024)
#       2 - (2048)
#       3 - (3072)
#       4 - (4096)
#       5 - (5120)
*/
static ssize_t
lpfc_iocb_hw_show(struct device *dev, struct device_attribute *attr, char *buf)
{
	struct Scsi_Host  *shost = class_to_shost(dev);
	struct lpfc_hba   *phba = ((struct lpfc_vport *) shost->hostdata)->phba;

	return snprintf(buf, PAGE_SIZE, "%d\n", phba->iocb_max);
}

static DEVICE_ATTR(iocb_hw, S_IRUGO,
			 lpfc_iocb_hw_show, NULL);
static ssize_t
lpfc_txq_hw_show(struct device *dev, struct device_attribute *attr, char *buf)
{
	struct Scsi_Host  *shost = class_to_shost(dev);
	struct lpfc_hba   *phba = ((struct lpfc_vport *) shost->hostdata)->phba;

	return snprintf(buf, PAGE_SIZE, "%d\n",
		phba->sli.ring[LPFC_ELS_RING].txq_max);
}

static DEVICE_ATTR(txq_hw, S_IRUGO,
			 lpfc_txq_hw_show, NULL);
static ssize_t
lpfc_txcmplq_hw_show(struct device *dev, struct device_attribute *attr,
 char *buf)
{
	struct Scsi_Host  *shost = class_to_shost(dev);
	struct lpfc_hba   *phba = ((struct lpfc_vport *) shost->hostdata)->phba;

	return snprintf(buf, PAGE_SIZE, "%d\n",
		phba->sli.ring[LPFC_ELS_RING].txcmplq_max);
}

static DEVICE_ATTR(txcmplq_hw, S_IRUGO,
			 lpfc_txcmplq_hw_show, NULL);

int lpfc_iocb_cnt = 2;
2250
module_param(lpfc_iocb_cnt, int, S_IRUGO);
2251 2252 2253 2254 2255 2256
MODULE_PARM_DESC(lpfc_iocb_cnt,
	"Number of IOCBs alloc for ELS, CT, and ABTS: 1k to 5k IOCBs");
lpfc_param_show(iocb_cnt);
lpfc_param_init(iocb_cnt, 2, 1, 5);
static DEVICE_ATTR(lpfc_iocb_cnt, S_IRUGO,
			 lpfc_iocb_cnt_show, NULL);
2257

2258 2259 2260 2261 2262 2263 2264 2265 2266 2267
/*
# 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.
*/
static int lpfc_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
static int lpfc_devloss_tmo = LPFC_DEF_DEVLOSS_TMO;
module_param(lpfc_nodev_tmo, int, 0);
MODULE_PARM_DESC(lpfc_nodev_tmo,
		 "Seconds driver will hold I/O waiting "
		 "for a device to come back");
2268 2269

/**
2270
 * lpfc_nodev_tmo_show - Return the hba dev loss timeout value
2271 2272 2273 2274 2275 2276
 * @dev: class converted to a Scsi_host structure.
 * @attr: device attribute, not used.
 * @buf: on return contains the dev loss timeout in decimal.
 *
 * Returns: size of formatted string.
 **/
2277
static ssize_t
2278 2279
lpfc_nodev_tmo_show(struct device *dev, struct device_attribute *attr,
		    char *buf)
2280
{
2281
	struct Scsi_Host  *shost = class_to_shost(dev);
J
James Smart 已提交
2282
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2283

2284
	return snprintf(buf, PAGE_SIZE, "%d\n",	vport->cfg_devloss_tmo);
2285 2286
}

2287
/**
2288
 * lpfc_nodev_tmo_init - Set the hba nodev timeout value
2289 2290 2291 2292 2293 2294 2295 2296 2297 2298 2299 2300 2301
 * @vport: lpfc vport structure pointer.
 * @val: contains the nodev timeout value.
 *
 * Description:
 * If the devloss tmo is already set then nodev tmo is set to devloss tmo,
 * a kernel error message is printed and zero is returned.
 * Else if val is in range then nodev tmo and devloss tmo are set to val.
 * Otherwise nodev tmo is set to the default value.
 *
 * Returns:
 * zero if already set or if val is in range
 * -EINVAL val out of range
 **/
2302
static int
2303 2304 2305 2306 2307
lpfc_nodev_tmo_init(struct lpfc_vport *vport, int val)
{
	if (vport->cfg_devloss_tmo != LPFC_DEF_DEVLOSS_TMO) {
		vport->cfg_nodev_tmo = vport->cfg_devloss_tmo;
		if (val != LPFC_DEF_DEVLOSS_TMO)
2308
			lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2309
					 "0407 Ignoring nodev_tmo module "
2310 2311
					 "parameter because devloss_tmo is "
					 "set.\n");
2312 2313 2314 2315
		return 0;
	}

	if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
2316 2317
		vport->cfg_nodev_tmo = val;
		vport->cfg_devloss_tmo = val;
2318 2319
		return 0;
	}
2320 2321 2322 2323
	lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
			 "0400 lpfc_nodev_tmo attribute cannot be set to"
			 " %d, allowed range is [%d, %d]\n",
			 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
2324
	vport->cfg_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
2325 2326 2327
	return -EINVAL;
}

2328
/**
2329
 * lpfc_update_rport_devloss_tmo - Update dev loss tmo value
2330 2331 2332 2333 2334
 * @vport: lpfc vport structure pointer.
 *
 * Description:
 * Update all the ndlp's dev loss tmo with the vport devloss tmo value.
 **/
2335
static void
2336
lpfc_update_rport_devloss_tmo(struct lpfc_vport *vport)
2337
{
J
James Smart 已提交
2338
	struct Scsi_Host  *shost;
2339 2340
	struct lpfc_nodelist  *ndlp;

2341 2342 2343
	shost = lpfc_shost_from_vport(vport);
	spin_lock_irq(shost->host_lock);
	list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp)
2344
		if (NLP_CHK_NODE_ACT(ndlp) && ndlp->rport)
2345 2346
			ndlp->rport->dev_loss_tmo = vport->cfg_devloss_tmo;
	spin_unlock_irq(shost->host_lock);
2347 2348
}

2349
/**
2350
 * lpfc_nodev_tmo_set - Set the vport nodev tmo and devloss tmo values
2351 2352 2353 2354 2355 2356 2357 2358 2359 2360 2361 2362 2363
 * @vport: lpfc vport structure pointer.
 * @val: contains the tmo value.
 *
 * Description:
 * If the devloss tmo is already set or the vport dev loss tmo has changed
 * then a kernel error message is printed and zero is returned.
 * Else if val is in range then nodev tmo and devloss tmo are set to val.
 * Otherwise nodev tmo is set to the default value.
 *
 * Returns:
 * zero if already set or if val is in range
 * -EINVAL val out of range
 **/
2364
static int
2365
lpfc_nodev_tmo_set(struct lpfc_vport *vport, int val)
2366
{
2367 2368
	if (vport->dev_loss_tmo_changed ||
	    (lpfc_devloss_tmo != LPFC_DEF_DEVLOSS_TMO)) {
2369 2370 2371
		lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
				 "0401 Ignoring change to nodev_tmo "
				 "because devloss_tmo is set.\n");
2372 2373 2374
		return 0;
	}
	if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
2375 2376
		vport->cfg_nodev_tmo = val;
		vport->cfg_devloss_tmo = val;
2377 2378 2379 2380 2381
		/*
		 * For compat: set the fc_host dev loss so new rports
		 * will get the value.
		 */
		fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val;
2382
		lpfc_update_rport_devloss_tmo(vport);
2383 2384
		return 0;
	}
2385 2386 2387 2388
	lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
			 "0403 lpfc_nodev_tmo attribute cannot be set to"
			 "%d, allowed range is [%d, %d]\n",
			 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
2389 2390 2391
	return -EINVAL;
}

2392
lpfc_vport_param_store(nodev_tmo)
2393

2394 2395
static DEVICE_ATTR(lpfc_nodev_tmo, S_IRUGO | S_IWUSR,
		   lpfc_nodev_tmo_show, lpfc_nodev_tmo_store);
2396 2397 2398 2399 2400 2401

/*
# lpfc_devloss_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.
*/
2402
module_param(lpfc_devloss_tmo, int, S_IRUGO);
2403 2404 2405
MODULE_PARM_DESC(lpfc_devloss_tmo,
		 "Seconds driver will hold I/O waiting "
		 "for a device to come back");
2406 2407 2408
lpfc_vport_param_init(devloss_tmo, LPFC_DEF_DEVLOSS_TMO,
		      LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO)
lpfc_vport_param_show(devloss_tmo)
2409 2410

/**
2411
 * lpfc_devloss_tmo_set - Sets vport nodev tmo, devloss tmo values, changed bit
2412 2413 2414 2415 2416 2417 2418 2419 2420 2421 2422 2423
 * @vport: lpfc vport structure pointer.
 * @val: contains the tmo value.
 *
 * Description:
 * If val is in a valid range then set the vport nodev tmo,
 * devloss tmo, also set the vport dev loss tmo changed flag.
 * Else a kernel error message is printed.
 *
 * Returns:
 * zero if val is in range
 * -EINVAL val out of range
 **/
2424
static int
2425
lpfc_devloss_tmo_set(struct lpfc_vport *vport, int val)
2426 2427
{
	if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
2428 2429 2430
		vport->cfg_nodev_tmo = val;
		vport->cfg_devloss_tmo = val;
		vport->dev_loss_tmo_changed = 1;
2431
		fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val;
2432
		lpfc_update_rport_devloss_tmo(vport);
2433 2434 2435
		return 0;
	}

2436 2437 2438 2439
	lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
			 "0404 lpfc_devloss_tmo attribute cannot be set to"
			 " %d, allowed range is [%d, %d]\n",
			 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
2440 2441 2442
	return -EINVAL;
}

2443
lpfc_vport_param_store(devloss_tmo)
2444 2445
static DEVICE_ATTR(lpfc_devloss_tmo, S_IRUGO | S_IWUSR,
		   lpfc_devloss_tmo_show, lpfc_devloss_tmo_store);
2446

已提交
2447 2448 2449 2450
/*
# 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:
2451
# See lpfc_logmsh.h for definitions.
已提交
2452
*/
2453
LPFC_VPORT_ATTR_HEX_RW(log_verbose, 0x0, 0x0, 0xffffffff,
2454
		       "Verbose logging bit-mask");
已提交
2455

J
James Smart 已提交
2456 2457 2458 2459 2460 2461 2462
/*
# lpfc_enable_da_id: This turns on the DA_ID CT command that deregisters
# objects that have been registered with the nameserver after login.
*/
LPFC_VPORT_ATTR_R(enable_da_id, 0, 0, 1,
		  "Deregister nameserver objects before LOGO");

已提交
2463 2464 2465 2466
/*
# 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.
*/
2467 2468
LPFC_VPORT_ATTR_R(lun_queue_depth, 30, 1, 128,
		  "Max number of FCP commands we can queue to a specific LUN");
已提交
2469

2470 2471 2472 2473 2474 2475 2476
/*
# tgt_queue_depth:  This parameter is used to limit the number of outstanding
# commands per target port. Value range is [10,65535]. Default value is 65535.
*/
LPFC_VPORT_ATTR_R(tgt_queue_depth, 65535, 10, 65535,
	"Max number of FCP commands we can queue to a specific target port");

2477 2478 2479 2480 2481 2482 2483 2484 2485 2486
/*
# 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");

2487 2488 2489 2490 2491 2492 2493 2494 2495
/*
# peer_port_login:  This parameter allows/prevents logins
# between peer ports hosted on the same physical port.
# When this parameter is set 0 peer ports of same physical port
# are not allowed to login to each other.
# When this parameter is set 1 peer ports of same physical port
# are allowed to login to each other.
# Default value of this parameter is 0.
*/
2496 2497 2498
LPFC_VPORT_ATTR_R(peer_port_login, 0, 0, 1,
		  "Allow peer ports on the same physical port to login to each "
		  "other.");
2499 2500

/*
2501
# restrict_login:  This parameter allows/prevents logins
2502 2503 2504 2505 2506 2507 2508 2509 2510
# between Virtual Ports and remote initiators.
# When this parameter is not set (0) Virtual Ports will accept PLOGIs from
# other initiators and will attempt to PLOGI all remote ports.
# When this parameter is set (1) Virtual Ports will reject PLOGIs from
# remote ports and will not attempt to PLOGI to other initiators.
# This parameter does not restrict to the physical port.
# This parameter does not restrict logins to Fabric resident remote ports.
# Default value of this parameter is 1.
*/
2511
static int lpfc_restrict_login = 1;
2512
module_param(lpfc_restrict_login, int, S_IRUGO);
2513 2514 2515 2516
MODULE_PARM_DESC(lpfc_restrict_login,
		 "Restrict virtual ports login to remote initiators.");
lpfc_vport_param_show(restrict_login);

2517
/**
2518
 * lpfc_restrict_login_init - Set the vport restrict login flag
2519 2520 2521 2522 2523 2524 2525 2526 2527 2528 2529 2530 2531
 * @vport: lpfc vport structure pointer.
 * @val: contains the restrict login value.
 *
 * Description:
 * If val is not in a valid range then log a kernel error message and set
 * the vport restrict login to one.
 * If the port type is physical clear the restrict login flag and return.
 * Else set the restrict login flag to val.
 *
 * Returns:
 * zero if val is in range
 * -EINVAL val out of range
 **/
2532 2533 2534 2535
static int
lpfc_restrict_login_init(struct lpfc_vport *vport, int val)
{
	if (val < 0 || val > 1) {
2536
		lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2537
				 "0422 lpfc_restrict_login attribute cannot "
2538 2539
				 "be set to %d, allowed range is [0, 1]\n",
				 val);
2540 2541 2542 2543 2544 2545 2546 2547 2548 2549 2550
		vport->cfg_restrict_login = 1;
		return -EINVAL;
	}
	if (vport->port_type == LPFC_PHYSICAL_PORT) {
		vport->cfg_restrict_login = 0;
		return 0;
	}
	vport->cfg_restrict_login = val;
	return 0;
}

2551
/**
2552
 * lpfc_restrict_login_set - Set the vport restrict login flag
2553 2554 2555 2556 2557 2558 2559 2560 2561 2562 2563 2564 2565 2566
 * @vport: lpfc vport structure pointer.
 * @val: contains the restrict login value.
 *
 * Description:
 * If val is not in a valid range then log a kernel error message and set
 * the vport restrict login to one.
 * If the port type is physical and the val is not zero log a kernel
 * error message, clear the restrict login flag and return zero.
 * Else set the restrict login flag to val.
 *
 * Returns:
 * zero if val is in range
 * -EINVAL val out of range
 **/
2567 2568 2569 2570
static int
lpfc_restrict_login_set(struct lpfc_vport *vport, int val)
{
	if (val < 0 || val > 1) {
2571
		lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2572
				 "0425 lpfc_restrict_login attribute cannot "
2573 2574
				 "be set to %d, allowed range is [0, 1]\n",
				 val);
2575 2576 2577 2578
		vport->cfg_restrict_login = 1;
		return -EINVAL;
	}
	if (vport->port_type == LPFC_PHYSICAL_PORT && val != 0) {
2579 2580 2581
		lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
				 "0468 lpfc_restrict_login must be 0 for "
				 "Physical ports.\n");
2582 2583 2584 2585 2586 2587 2588
		vport->cfg_restrict_login = 0;
		return 0;
	}
	vport->cfg_restrict_login = val;
	return 0;
}
lpfc_vport_param_store(restrict_login);
2589 2590
static DEVICE_ATTR(lpfc_restrict_login, S_IRUGO | S_IWUSR,
		   lpfc_restrict_login_show, lpfc_restrict_login_store);
2591

已提交
2592 2593 2594 2595 2596 2597 2598 2599 2600 2601 2602 2603 2604 2605 2606 2607 2608
/*
# 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.)
*/
2609 2610
LPFC_VPORT_ATTR_R(scan_down, 1, 0, 1,
		  "Start scanning for devices from highest ALPA to lowest");
已提交
2611 2612 2613 2614

/*
# lpfc_topology:  link topology for init link
#            0x0  = attempt loop mode then point-to-point
2615
#            0x01 = internal loopback mode
已提交
2616 2617 2618 2619 2620 2621 2622
#            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.
*/
2623 2624

/**
2625
 * lpfc_topology_set - Set the adapters topology field
2626 2627 2628 2629 2630 2631 2632 2633 2634 2635 2636 2637 2638 2639
 * @phba: lpfc_hba pointer.
 * @val: topology value.
 *
 * Description:
 * If val is in a valid range then set the adapter's topology field and
 * issue a lip; if the lip fails reset the topology to the old value.
 *
 * If the value is not in range log a kernel error message and return an error.
 *
 * Returns:
 * zero if val is in range and lip okay
 * non-zero return value from lpfc_issue_lip()
 * -EINVAL val out of range
 **/
2640 2641 2642
static ssize_t
lpfc_topology_store(struct device *dev, struct device_attribute *attr,
			const char *buf, size_t count)
2643
{
2644 2645 2646 2647 2648 2649
	struct Scsi_Host  *shost = class_to_shost(dev);
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
	int val = 0;
	int nolip = 0;
	const char *val_buf = buf;
2650 2651
	int err;
	uint32_t prev_val;
2652 2653 2654 2655 2656 2657 2658 2659 2660 2661 2662

	if (!strncmp(buf, "nolip ", strlen("nolip "))) {
		nolip = 1;
		val_buf = &buf[strlen("nolip ")];
	}

	if (!isdigit(val_buf[0]))
		return -EINVAL;
	if (sscanf(val_buf, "%i", &val) != 1)
		return -EINVAL;

2663 2664 2665
	if (val >= 0 && val <= 6) {
		prev_val = phba->cfg_topology;
		phba->cfg_topology = val;
2666 2667 2668
		if (nolip)
			return strlen(buf);

2669 2670 2671
		lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
			"3054 lpfc_topology changed from %d to %d\n",
			prev_val, val);
2672
		err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport));
2673
		if (err) {
2674
			phba->cfg_topology = prev_val;
2675 2676 2677
			return -EINVAL;
		} else
			return strlen(buf);
2678 2679 2680 2681 2682 2683 2684 2685
	}
	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
		"%d:0467 lpfc_topology attribute cannot be set to %d, "
		"allowed range is [0, 6]\n",
		phba->brd_no, val);
	return -EINVAL;
}
static int lpfc_topology = 0;
2686
module_param(lpfc_topology, int, S_IRUGO);
2687 2688 2689
MODULE_PARM_DESC(lpfc_topology, "Select Fibre Channel topology");
lpfc_param_show(topology)
lpfc_param_init(topology, 0, 0, 6)
2690
static DEVICE_ATTR(lpfc_topology, S_IRUGO | S_IWUSR,
2691
		lpfc_topology_show, lpfc_topology_store);
已提交
2692

2693 2694 2695 2696 2697 2698 2699 2700 2701 2702 2703 2704 2705 2706 2707 2708 2709 2710 2711 2712 2713 2714 2715 2716 2717 2718 2719 2720 2721 2722
/**
 * lpfc_static_vport_show: Read callback function for
 *   lpfc_static_vport sysfs file.
 * @dev: Pointer to class device object.
 * @attr: device attribute structure.
 * @buf: Data buffer.
 *
 * This function is the read call back function for
 * lpfc_static_vport sysfs file. The lpfc_static_vport
 * sysfs file report the mageability of the vport.
 **/
static ssize_t
lpfc_static_vport_show(struct device *dev, struct device_attribute *attr,
			 char *buf)
{
	struct Scsi_Host  *shost = class_to_shost(dev);
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	if (vport->vport_flag & STATIC_VPORT)
		sprintf(buf, "1\n");
	else
		sprintf(buf, "0\n");

	return strlen(buf);
}

/*
 * Sysfs attribute to control the statistical data collection.
 */
static DEVICE_ATTR(lpfc_static_vport, S_IRUGO,
		   lpfc_static_vport_show, NULL);
2723 2724

/**
2725
 * lpfc_stat_data_ctrl_store - write call back for lpfc_stat_data_ctrl sysfs file
2726 2727 2728 2729 2730 2731 2732 2733 2734 2735 2736 2737 2738 2739 2740 2741 2742 2743 2744 2745 2746 2747 2748 2749 2750 2751 2752 2753 2754 2755 2756 2757 2758 2759
 * @dev: Pointer to class device.
 * @buf: Data buffer.
 * @count: Size of the data buffer.
 *
 * This function get called when an user write to the lpfc_stat_data_ctrl
 * sysfs file. This function parse the command written to the sysfs file
 * and take appropriate action. These commands are used for controlling
 * driver statistical data collection.
 * Following are the command this function handles.
 *
 *    setbucket <bucket_type> <base> <step>
 *			       = Set the latency buckets.
 *    destroybucket            = destroy all the buckets.
 *    start                    = start data collection
 *    stop                     = stop data collection
 *    reset                    = reset the collected data
 **/
static ssize_t
lpfc_stat_data_ctrl_store(struct device *dev, struct device_attribute *attr,
			  const char *buf, size_t count)
{
	struct Scsi_Host  *shost = class_to_shost(dev);
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
#define LPFC_MAX_DATA_CTRL_LEN 1024
	static char bucket_data[LPFC_MAX_DATA_CTRL_LEN];
	unsigned long i;
	char *str_ptr, *token;
	struct lpfc_vport **vports;
	struct Scsi_Host *v_shost;
	char *bucket_type_str, *base_str, *step_str;
	unsigned long base, step, bucket_type;

	if (!strncmp(buf, "setbucket", strlen("setbucket"))) {
2760
		if (strlen(buf) > (LPFC_MAX_DATA_CTRL_LEN - 1))
2761 2762 2763 2764 2765 2766 2767 2768 2769 2770 2771 2772 2773 2774 2775 2776 2777 2778 2779 2780 2781 2782 2783 2784 2785 2786 2787 2788 2789 2790 2791 2792 2793 2794 2795 2796 2797
			return -EINVAL;

		strcpy(bucket_data, buf);
		str_ptr = &bucket_data[0];
		/* Ignore this token - this is command token */
		token = strsep(&str_ptr, "\t ");
		if (!token)
			return -EINVAL;

		bucket_type_str = strsep(&str_ptr, "\t ");
		if (!bucket_type_str)
			return -EINVAL;

		if (!strncmp(bucket_type_str, "linear", strlen("linear")))
			bucket_type = LPFC_LINEAR_BUCKET;
		else if (!strncmp(bucket_type_str, "power2", strlen("power2")))
			bucket_type = LPFC_POWER2_BUCKET;
		else
			return -EINVAL;

		base_str = strsep(&str_ptr, "\t ");
		if (!base_str)
			return -EINVAL;
		base = simple_strtoul(base_str, NULL, 0);

		step_str = strsep(&str_ptr, "\t ");
		if (!step_str)
			return -EINVAL;
		step = simple_strtoul(step_str, NULL, 0);
		if (!step)
			return -EINVAL;

		/* Block the data collection for every vport */
		vports = lpfc_create_vport_work_array(phba);
		if (vports == NULL)
			return -ENOMEM;

2798
		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2799 2800 2801 2802 2803 2804 2805 2806 2807 2808 2809 2810 2811 2812
			v_shost = lpfc_shost_from_vport(vports[i]);
			spin_lock_irq(v_shost->host_lock);
			/* Block and reset data collection */
			vports[i]->stat_data_blocked = 1;
			if (vports[i]->stat_data_enabled)
				lpfc_vport_reset_stat_data(vports[i]);
			spin_unlock_irq(v_shost->host_lock);
		}

		/* Set the bucket attributes */
		phba->bucket_type = bucket_type;
		phba->bucket_base = base;
		phba->bucket_step = step;

2813
		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2814 2815 2816 2817 2818 2819 2820 2821 2822 2823 2824 2825 2826 2827 2828 2829
			v_shost = lpfc_shost_from_vport(vports[i]);

			/* Unblock data collection */
			spin_lock_irq(v_shost->host_lock);
			vports[i]->stat_data_blocked = 0;
			spin_unlock_irq(v_shost->host_lock);
		}
		lpfc_destroy_vport_work_array(phba, vports);
		return strlen(buf);
	}

	if (!strncmp(buf, "destroybucket", strlen("destroybucket"))) {
		vports = lpfc_create_vport_work_array(phba);
		if (vports == NULL)
			return -ENOMEM;

2830
		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2831 2832 2833 2834 2835 2836 2837 2838 2839 2840 2841 2842 2843 2844 2845 2846 2847 2848 2849 2850 2851 2852 2853 2854 2855 2856 2857 2858 2859 2860 2861 2862 2863 2864 2865 2866 2867 2868 2869 2870 2871 2872 2873 2874 2875 2876 2877 2878 2879 2880 2881 2882 2883 2884 2885 2886 2887 2888
			v_shost = lpfc_shost_from_vport(vports[i]);
			spin_lock_irq(shost->host_lock);
			vports[i]->stat_data_blocked = 1;
			lpfc_free_bucket(vport);
			vport->stat_data_enabled = 0;
			vports[i]->stat_data_blocked = 0;
			spin_unlock_irq(shost->host_lock);
		}
		lpfc_destroy_vport_work_array(phba, vports);
		phba->bucket_type = LPFC_NO_BUCKET;
		phba->bucket_base = 0;
		phba->bucket_step = 0;
		return strlen(buf);
	}

	if (!strncmp(buf, "start", strlen("start"))) {
		/* If no buckets configured return error */
		if (phba->bucket_type == LPFC_NO_BUCKET)
			return -EINVAL;
		spin_lock_irq(shost->host_lock);
		if (vport->stat_data_enabled) {
			spin_unlock_irq(shost->host_lock);
			return strlen(buf);
		}
		lpfc_alloc_bucket(vport);
		vport->stat_data_enabled = 1;
		spin_unlock_irq(shost->host_lock);
		return strlen(buf);
	}

	if (!strncmp(buf, "stop", strlen("stop"))) {
		spin_lock_irq(shost->host_lock);
		if (vport->stat_data_enabled == 0) {
			spin_unlock_irq(shost->host_lock);
			return strlen(buf);
		}
		lpfc_free_bucket(vport);
		vport->stat_data_enabled = 0;
		spin_unlock_irq(shost->host_lock);
		return strlen(buf);
	}

	if (!strncmp(buf, "reset", strlen("reset"))) {
		if ((phba->bucket_type == LPFC_NO_BUCKET)
			|| !vport->stat_data_enabled)
			return strlen(buf);
		spin_lock_irq(shost->host_lock);
		vport->stat_data_blocked = 1;
		lpfc_vport_reset_stat_data(vport);
		vport->stat_data_blocked = 0;
		spin_unlock_irq(shost->host_lock);
		return strlen(buf);
	}
	return -EINVAL;
}


/**
2889
 * lpfc_stat_data_ctrl_show - Read function for lpfc_stat_data_ctrl sysfs file
2890 2891 2892 2893 2894 2895 2896 2897 2898 2899 2900 2901 2902 2903 2904 2905 2906 2907 2908 2909 2910 2911 2912 2913 2914 2915 2916 2917 2918 2919 2920 2921 2922 2923 2924 2925 2926 2927 2928 2929 2930 2931 2932 2933 2934 2935 2936 2937 2938 2939 2940 2941 2942 2943 2944 2945 2946 2947 2948 2949 2950 2951 2952 2953 2954 2955 2956 2957 2958 2959 2960 2961 2962 2963 2964 2965
 * @dev: Pointer to class device object.
 * @buf: Data buffer.
 *
 * This function is the read call back function for
 * lpfc_stat_data_ctrl sysfs file. This function report the
 * current statistical data collection state.
 **/
static ssize_t
lpfc_stat_data_ctrl_show(struct device *dev, struct device_attribute *attr,
			 char *buf)
{
	struct Scsi_Host  *shost = class_to_shost(dev);
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
	int index = 0;
	int i;
	char *bucket_type;
	unsigned long bucket_value;

	switch (phba->bucket_type) {
	case LPFC_LINEAR_BUCKET:
		bucket_type = "linear";
		break;
	case LPFC_POWER2_BUCKET:
		bucket_type = "power2";
		break;
	default:
		bucket_type = "No Bucket";
		break;
	}

	sprintf(&buf[index], "Statistical Data enabled :%d, "
		"blocked :%d, Bucket type :%s, Bucket base :%d,"
		" Bucket step :%d\nLatency Ranges :",
		vport->stat_data_enabled, vport->stat_data_blocked,
		bucket_type, phba->bucket_base, phba->bucket_step);
	index = strlen(buf);
	if (phba->bucket_type != LPFC_NO_BUCKET) {
		for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) {
			if (phba->bucket_type == LPFC_LINEAR_BUCKET)
				bucket_value = phba->bucket_base +
					phba->bucket_step * i;
			else
				bucket_value = phba->bucket_base +
				(1 << i) * phba->bucket_step;

			if (index + 10 > PAGE_SIZE)
				break;
			sprintf(&buf[index], "%08ld ", bucket_value);
			index = strlen(buf);
		}
	}
	sprintf(&buf[index], "\n");
	return strlen(buf);
}

/*
 * Sysfs attribute to control the statistical data collection.
 */
static DEVICE_ATTR(lpfc_stat_data_ctrl, S_IRUGO | S_IWUSR,
		   lpfc_stat_data_ctrl_show, lpfc_stat_data_ctrl_store);

/*
 * lpfc_drvr_stat_data: sysfs attr to get driver statistical data.
 */

/*
 * Each Bucket takes 11 characters and 1 new line + 17 bytes WWN
 * for each target.
 */
#define STAT_DATA_SIZE_PER_TARGET(NUM_BUCKETS) ((NUM_BUCKETS) * 11 + 18)
#define MAX_STAT_DATA_SIZE_PER_TARGET \
	STAT_DATA_SIZE_PER_TARGET(LPFC_MAX_BUCKET_COUNT)


/**
2966
 * sysfs_drvr_stat_data_read - Read function for lpfc_drvr_stat_data attribute
2967
 * @filp: sysfs file
2968 2969 2970 2971 2972 2973 2974 2975 2976 2977 2978
 * @kobj: Pointer to the kernel object
 * @bin_attr: Attribute object
 * @buff: Buffer pointer
 * @off: File offset
 * @count: Buffer size
 *
 * This function is the read call back function for lpfc_drvr_stat_data
 * sysfs file. This function export the statistical data to user
 * applications.
 **/
static ssize_t
2979 2980
sysfs_drvr_stat_data_read(struct file *filp, struct kobject *kobj,
		struct bin_attribute *bin_attr,
2981 2982 2983 2984 2985 2986 2987 2988 2989 2990 2991 2992 2993 2994 2995 2996 2997 2998 2999 3000 3001 3002 3003 3004 3005 3006 3007 3008 3009 3010 3011 3012 3013 3014 3015 3016 3017 3018 3019 3020 3021 3022 3023 3024 3025 3026 3027 3028 3029 3030 3031 3032 3033 3034 3035 3036 3037 3038 3039 3040 3041 3042 3043 3044 3045 3046 3047 3048 3049
		char *buf, loff_t off, size_t count)
{
	struct device *dev = container_of(kobj, struct device,
		kobj);
	struct Scsi_Host  *shost = class_to_shost(dev);
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
	int i = 0, index = 0;
	unsigned long nport_index;
	struct lpfc_nodelist *ndlp = NULL;
	nport_index = (unsigned long)off /
		MAX_STAT_DATA_SIZE_PER_TARGET;

	if (!vport->stat_data_enabled || vport->stat_data_blocked
		|| (phba->bucket_type == LPFC_NO_BUCKET))
		return 0;

	spin_lock_irq(shost->host_lock);
	list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
		if (!NLP_CHK_NODE_ACT(ndlp) || !ndlp->lat_data)
			continue;

		if (nport_index > 0) {
			nport_index--;
			continue;
		}

		if ((index + MAX_STAT_DATA_SIZE_PER_TARGET)
			> count)
			break;

		if (!ndlp->lat_data)
			continue;

		/* Print the WWN */
		sprintf(&buf[index], "%02x%02x%02x%02x%02x%02x%02x%02x:",
			ndlp->nlp_portname.u.wwn[0],
			ndlp->nlp_portname.u.wwn[1],
			ndlp->nlp_portname.u.wwn[2],
			ndlp->nlp_portname.u.wwn[3],
			ndlp->nlp_portname.u.wwn[4],
			ndlp->nlp_portname.u.wwn[5],
			ndlp->nlp_portname.u.wwn[6],
			ndlp->nlp_portname.u.wwn[7]);

		index = strlen(buf);

		for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) {
			sprintf(&buf[index], "%010u,",
				ndlp->lat_data[i].cmd_count);
			index = strlen(buf);
		}
		sprintf(&buf[index], "\n");
		index = strlen(buf);
	}
	spin_unlock_irq(shost->host_lock);
	return index;
}

static struct bin_attribute sysfs_drvr_stat_data_attr = {
	.attr = {
		.name = "lpfc_drvr_stat_data",
		.mode = S_IRUSR,
	},
	.size = LPFC_MAX_TARGET * MAX_STAT_DATA_SIZE_PER_TARGET,
	.read = sysfs_drvr_stat_data_read,
	.write = NULL,
};

已提交
3050 3051 3052
/*
# lpfc_link_speed: Link speed selection for initializing the Fibre Channel
# connection.
3053
# Value range is [0,16]. Default value is 0.
已提交
3054
*/
3055
/**
3056
 * lpfc_link_speed_set - Set the adapters link speed
3057 3058 3059 3060 3061 3062 3063 3064 3065 3066 3067 3068 3069 3070 3071
 * @phba: lpfc_hba pointer.
 * @val: link speed value.
 *
 * Description:
 * If val is in a valid range then set the adapter's link speed field and
 * issue a lip; if the lip fails reset the link speed to the old value.
 *
 * Notes:
 * If the value is not in range log a kernel error message and return an error.
 *
 * Returns:
 * zero if val is in range and lip okay.
 * non-zero return value from lpfc_issue_lip()
 * -EINVAL val out of range
 **/
3072 3073 3074
static ssize_t
lpfc_link_speed_store(struct device *dev, struct device_attribute *attr,
		const char *buf, size_t count)
3075
{
3076 3077 3078
	struct Scsi_Host  *shost = class_to_shost(dev);
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
3079
	int val = LPFC_USER_LINK_SPEED_AUTO;
3080 3081
	int nolip = 0;
	const char *val_buf = buf;
3082 3083 3084
	int err;
	uint32_t prev_val;

3085 3086 3087 3088 3089 3090 3091 3092 3093 3094
	if (!strncmp(buf, "nolip ", strlen("nolip "))) {
		nolip = 1;
		val_buf = &buf[strlen("nolip ")];
	}

	if (!isdigit(val_buf[0]))
		return -EINVAL;
	if (sscanf(val_buf, "%i", &val) != 1)
		return -EINVAL;

3095 3096 3097 3098
	lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
		"3055 lpfc_link_speed changed from %d to %d %s\n",
		phba->cfg_link_speed, val, nolip ? "(nolip)" : "(lip)");

3099 3100 3101 3102 3103 3104 3105 3106 3107 3108
	if (((val == LPFC_USER_LINK_SPEED_1G) && !(phba->lmt & LMT_1Gb)) ||
	    ((val == LPFC_USER_LINK_SPEED_2G) && !(phba->lmt & LMT_2Gb)) ||
	    ((val == LPFC_USER_LINK_SPEED_4G) && !(phba->lmt & LMT_4Gb)) ||
	    ((val == LPFC_USER_LINK_SPEED_8G) && !(phba->lmt & LMT_8Gb)) ||
	    ((val == LPFC_USER_LINK_SPEED_10G) && !(phba->lmt & LMT_10Gb)) ||
	    ((val == LPFC_USER_LINK_SPEED_16G) && !(phba->lmt & LMT_16Gb))) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"2879 lpfc_link_speed attribute cannot be set "
				"to %d. Speed is not supported by this port.\n",
				val);
3109
		return -EINVAL;
3110 3111 3112
	}
	if ((val >= 0) && (val <= LPFC_USER_LINK_SPEED_MAX) &&
	    (LPFC_USER_LINK_SPEED_BITMAP & (1 << val))) {
3113 3114
		prev_val = phba->cfg_link_speed;
		phba->cfg_link_speed = val;
3115 3116 3117
		if (nolip)
			return strlen(buf);

3118
		err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport));
3119
		if (err) {
3120
			phba->cfg_link_speed = prev_val;
3121 3122 3123
			return -EINVAL;
		} else
			return strlen(buf);
3124 3125
	}
	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3126 3127
		"0469 lpfc_link_speed attribute cannot be set to %d, "
		"allowed values are ["LPFC_LINK_SPEED_STRING"]\n", val);
3128 3129 3130 3131
	return -EINVAL;
}

static int lpfc_link_speed = 0;
3132
module_param(lpfc_link_speed, int, S_IRUGO);
3133 3134
MODULE_PARM_DESC(lpfc_link_speed, "Select link speed");
lpfc_param_show(link_speed)
3135 3136

/**
3137
 * lpfc_link_speed_init - Set the adapters link speed
3138 3139 3140 3141 3142 3143 3144 3145 3146 3147 3148 3149 3150 3151
 * @phba: lpfc_hba pointer.
 * @val: link speed value.
 *
 * Description:
 * If val is in a valid range then set the adapter's link speed field.
 *
 * Notes:
 * If the value is not in range log a kernel error message, clear the link
 * speed and return an error.
 *
 * Returns:
 * zero if val saved.
 * -EINVAL val out of range
 **/
3152 3153 3154
static int
lpfc_link_speed_init(struct lpfc_hba *phba, int val)
{
3155 3156
	if ((val >= 0) && (val <= LPFC_USER_LINK_SPEED_MAX) &&
	    (LPFC_USER_LINK_SPEED_BITMAP & (1 << val))) {
3157 3158 3159 3160
		phba->cfg_link_speed = val;
		return 0;
	}
	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3161
			"0405 lpfc_link_speed attribute cannot "
3162 3163
			"be set to %d, allowed values are "
			"["LPFC_LINK_SPEED_STRING"]\n", val);
3164
	phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
3165 3166 3167
	return -EINVAL;
}

3168
static DEVICE_ATTR(lpfc_link_speed, S_IRUGO | S_IWUSR,
3169
		   lpfc_link_speed_show, lpfc_link_speed_store);
已提交
3170

J
James Smart 已提交
3171 3172 3173 3174 3175 3176 3177 3178 3179 3180 3181 3182
/*
# lpfc_aer_support: Support PCIe device Advanced Error Reporting (AER)
#       0  = aer disabled or not supported
#       1  = aer supported and enabled (default)
# Value range is [0,1]. Default value is 1.
*/

/**
 * lpfc_aer_support_store - Set the adapter for aer support
 *
 * @dev: class device that is converted into a Scsi_host.
 * @attr: device attribute, not used.
3183
 * @buf: containing enable or disable aer flag.
J
James Smart 已提交
3184 3185 3186 3187 3188 3189 3190 3191 3192 3193 3194 3195 3196 3197 3198 3199 3200 3201 3202 3203 3204 3205 3206 3207 3208 3209 3210 3211 3212 3213 3214 3215 3216 3217 3218 3219 3220 3221 3222 3223 3224 3225 3226 3227 3228 3229
 * @count: unused variable.
 *
 * Description:
 * If the val is 1 and currently the device's AER capability was not
 * enabled, invoke the kernel's enable AER helper routine, trying to
 * enable the device's AER capability. If the helper routine enabling
 * AER returns success, update the device's cfg_aer_support flag to
 * indicate AER is supported by the device; otherwise, if the device
 * AER capability is already enabled to support AER, then do nothing.
 *
 * If the val is 0 and currently the device's AER support was enabled,
 * invoke the kernel's disable AER helper routine. After that, update
 * the device's cfg_aer_support flag to indicate AER is not supported
 * by the device; otherwise, if the device AER capability is already
 * disabled from supporting AER, then do nothing.
 *
 * Returns:
 * length of the buf on success if val is in range the intended mode
 * is supported.
 * -EINVAL if val out of range or intended mode is not supported.
 **/
static ssize_t
lpfc_aer_support_store(struct device *dev, struct device_attribute *attr,
		       const char *buf, size_t count)
{
	struct Scsi_Host *shost = class_to_shost(dev);
	struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
	struct lpfc_hba *phba = vport->phba;
	int val = 0, rc = -EINVAL;

	if (!isdigit(buf[0]))
		return -EINVAL;
	if (sscanf(buf, "%i", &val) != 1)
		return -EINVAL;

	switch (val) {
	case 0:
		if (phba->hba_flag & HBA_AER_ENABLED) {
			rc = pci_disable_pcie_error_reporting(phba->pcidev);
			if (!rc) {
				spin_lock_irq(&phba->hbalock);
				phba->hba_flag &= ~HBA_AER_ENABLED;
				spin_unlock_irq(&phba->hbalock);
				phba->cfg_aer_support = 0;
				rc = strlen(buf);
			} else
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				rc = -EPERM;
		} else {
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			phba->cfg_aer_support = 0;
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			rc = strlen(buf);
		}
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		break;
	case 1:
		if (!(phba->hba_flag & HBA_AER_ENABLED)) {
			rc = pci_enable_pcie_error_reporting(phba->pcidev);
			if (!rc) {
				spin_lock_irq(&phba->hbalock);
				phba->hba_flag |= HBA_AER_ENABLED;
				spin_unlock_irq(&phba->hbalock);
				phba->cfg_aer_support = 1;
				rc = strlen(buf);
			} else
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				 rc = -EPERM;
		} else {
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			phba->cfg_aer_support = 1;
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			rc = strlen(buf);
		}
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		break;
	default:
		rc = -EINVAL;
		break;
	}
	return rc;
}

static int lpfc_aer_support = 1;
3260
module_param(lpfc_aer_support, int, S_IRUGO);
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MODULE_PARM_DESC(lpfc_aer_support, "Enable PCIe device AER support");
lpfc_param_show(aer_support)

/**
 * lpfc_aer_support_init - Set the initial adapters aer support flag
 * @phba: lpfc_hba pointer.
3267
 * @val: enable aer or disable aer flag.
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 *
 * Description:
 * If val is in a valid range [0,1], then set the adapter's initial
 * cfg_aer_support field. It will be up to the driver's probe_one
 * routine to determine whether the device's AER support can be set
 * or not.
 *
 * Notes:
 * If the value is not in range log a kernel error message, and
 * choose the default value of setting AER support and return.
 *
 * Returns:
 * zero if val saved.
 * -EINVAL val out of range
 **/
static int
lpfc_aer_support_init(struct lpfc_hba *phba, int val)
{
	if (val == 0 || val == 1) {
		phba->cfg_aer_support = val;
		return 0;
	}
	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
			"2712 lpfc_aer_support attribute value %d out "
			"of range, allowed values are 0|1, setting it "
			"to default value of 1\n", val);
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	/* By default, try to enable AER on a device */
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	phba->cfg_aer_support = 1;
	return -EINVAL;
}

static DEVICE_ATTR(lpfc_aer_support, S_IRUGO | S_IWUSR,
		   lpfc_aer_support_show, lpfc_aer_support_store);

/**
 * lpfc_aer_cleanup_state - Clean up aer state to the aer enabled device
 * @dev: class device that is converted into a Scsi_host.
 * @attr: device attribute, not used.
3306
 * @buf: containing flag 1 for aer cleanup state.
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3307 3308 3309 3310 3311 3312 3313 3314 3315 3316 3317 3318 3319 3320 3321 3322 3323 3324 3325 3326 3327 3328 3329 3330 3331 3332 3333
 * @count: unused variable.
 *
 * Description:
 * If the @buf contains 1 and the device currently has the AER support
 * enabled, then invokes the kernel AER helper routine
 * pci_cleanup_aer_uncorrect_error_status to clean up the uncorrectable
 * error status register.
 *
 * Notes:
 *
 * Returns:
 * -EINVAL if the buf does not contain the 1 or the device is not currently
 * enabled with the AER support.
 **/
static ssize_t
lpfc_aer_cleanup_state(struct device *dev, struct device_attribute *attr,
		       const char *buf, size_t count)
{
	struct Scsi_Host  *shost = class_to_shost(dev);
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
	int val, rc = -1;

	if (!isdigit(buf[0]))
		return -EINVAL;
	if (sscanf(buf, "%i", &val) != 1)
		return -EINVAL;
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	if (val != 1)
		return -EINVAL;
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3336

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3337
	if (phba->hba_flag & HBA_AER_ENABLED)
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3338 3339 3340 3341 3342
		rc = pci_cleanup_aer_uncorrect_error_status(phba->pcidev);

	if (rc == 0)
		return strlen(buf);
	else
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3343
		return -EPERM;
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}

static DEVICE_ATTR(lpfc_aer_state_cleanup, S_IWUSR, NULL,
		   lpfc_aer_cleanup_state);

3349 3350 3351 3352 3353 3354 3355 3356 3357 3358 3359 3360 3361 3362 3363 3364 3365 3366 3367 3368 3369 3370 3371 3372 3373 3374 3375 3376 3377 3378 3379 3380 3381 3382 3383 3384 3385 3386 3387 3388 3389 3390 3391 3392 3393 3394 3395 3396 3397 3398 3399 3400 3401 3402 3403 3404 3405 3406 3407 3408 3409 3410 3411 3412 3413 3414 3415 3416 3417 3418 3419 3420 3421 3422 3423 3424 3425 3426 3427 3428 3429 3430 3431 3432 3433 3434 3435 3436 3437 3438 3439 3440 3441 3442 3443 3444 3445 3446 3447 3448 3449 3450 3451 3452 3453 3454 3455 3456 3457 3458 3459 3460 3461 3462 3463 3464 3465 3466 3467 3468 3469 3470 3471 3472 3473 3474 3475 3476 3477 3478
/**
 * lpfc_sriov_nr_virtfn_store - Enable the adapter for sr-iov virtual functions
 *
 * @dev: class device that is converted into a Scsi_host.
 * @attr: device attribute, not used.
 * @buf: containing the string the number of vfs to be enabled.
 * @count: unused variable.
 *
 * Description:
 * When this api is called either through user sysfs, the driver shall
 * try to enable or disable SR-IOV virtual functions according to the
 * following:
 *
 * If zero virtual function has been enabled to the physical function,
 * the driver shall invoke the pci enable virtual function api trying
 * to enable the virtual functions. If the nr_vfn provided is greater
 * than the maximum supported, the maximum virtual function number will
 * be used for invoking the api; otherwise, the nr_vfn provided shall
 * be used for invoking the api. If the api call returned success, the
 * actual number of virtual functions enabled will be set to the driver
 * cfg_sriov_nr_virtfn; otherwise, -EINVAL shall be returned and driver
 * cfg_sriov_nr_virtfn remains zero.
 *
 * If none-zero virtual functions have already been enabled to the
 * physical function, as reflected by the driver's cfg_sriov_nr_virtfn,
 * -EINVAL will be returned and the driver does nothing;
 *
 * If the nr_vfn provided is zero and none-zero virtual functions have
 * been enabled, as indicated by the driver's cfg_sriov_nr_virtfn, the
 * disabling virtual function api shall be invoded to disable all the
 * virtual functions and driver's cfg_sriov_nr_virtfn shall be set to
 * zero. Otherwise, if zero virtual function has been enabled, do
 * nothing.
 *
 * Returns:
 * length of the buf on success if val is in range the intended mode
 * is supported.
 * -EINVAL if val out of range or intended mode is not supported.
 **/
static ssize_t
lpfc_sriov_nr_virtfn_store(struct device *dev, struct device_attribute *attr,
			 const char *buf, size_t count)
{
	struct Scsi_Host *shost = class_to_shost(dev);
	struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
	struct lpfc_hba *phba = vport->phba;
	struct pci_dev *pdev = phba->pcidev;
	int val = 0, rc = -EINVAL;

	/* Sanity check on user data */
	if (!isdigit(buf[0]))
		return -EINVAL;
	if (sscanf(buf, "%i", &val) != 1)
		return -EINVAL;
	if (val < 0)
		return -EINVAL;

	/* Request disabling virtual functions */
	if (val == 0) {
		if (phba->cfg_sriov_nr_virtfn > 0) {
			pci_disable_sriov(pdev);
			phba->cfg_sriov_nr_virtfn = 0;
		}
		return strlen(buf);
	}

	/* Request enabling virtual functions */
	if (phba->cfg_sriov_nr_virtfn > 0) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"3018 There are %d virtual functions "
				"enabled on physical function.\n",
				phba->cfg_sriov_nr_virtfn);
		return -EEXIST;
	}

	if (val <= LPFC_MAX_VFN_PER_PFN)
		phba->cfg_sriov_nr_virtfn = val;
	else {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"3019 Enabling %d virtual functions is not "
				"allowed.\n", val);
		return -EINVAL;
	}

	rc = lpfc_sli_probe_sriov_nr_virtfn(phba, phba->cfg_sriov_nr_virtfn);
	if (rc) {
		phba->cfg_sriov_nr_virtfn = 0;
		rc = -EPERM;
	} else
		rc = strlen(buf);

	return rc;
}

static int lpfc_sriov_nr_virtfn = LPFC_DEF_VFN_PER_PFN;
module_param(lpfc_sriov_nr_virtfn, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(lpfc_sriov_nr_virtfn, "Enable PCIe device SR-IOV virtual fn");
lpfc_param_show(sriov_nr_virtfn)

/**
 * lpfc_sriov_nr_virtfn_init - Set the initial sr-iov virtual function enable
 * @phba: lpfc_hba pointer.
 * @val: link speed value.
 *
 * Description:
 * If val is in a valid range [0,255], then set the adapter's initial
 * cfg_sriov_nr_virtfn field. If it's greater than the maximum, the maximum
 * number shall be used instead. It will be up to the driver's probe_one
 * routine to determine whether the device's SR-IOV is supported or not.
 *
 * Returns:
 * zero if val saved.
 * -EINVAL val out of range
 **/
static int
lpfc_sriov_nr_virtfn_init(struct lpfc_hba *phba, int val)
{
	if (val >= 0 && val <= LPFC_MAX_VFN_PER_PFN) {
		phba->cfg_sriov_nr_virtfn = val;
		return 0;
	}

	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
			"3017 Enabling %d virtual functions is not "
			"allowed.\n", val);
	return -EINVAL;
}
static DEVICE_ATTR(lpfc_sriov_nr_virtfn, S_IRUGO | S_IWUSR,
		   lpfc_sriov_nr_virtfn_show, lpfc_sriov_nr_virtfn_store);

已提交
3479 3480 3481 3482
/*
# lpfc_fcp_class:  Determines FC class to use for the FCP protocol.
# Value range is [2,3]. Default value is 3.
*/
3483 3484
LPFC_VPORT_ATTR_R(fcp_class, 3, 2, 3,
		  "Select Fibre Channel class of service for FCP sequences");
已提交
3485 3486 3487 3488 3489

/*
# lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range
# is [0,1]. Default value is 0.
*/
3490 3491
LPFC_VPORT_ATTR_RW(use_adisc, 0, 0, 1,
		   "Use ADISC on rediscovery to authenticate FCP devices");
已提交
3492

3493 3494 3495 3496 3497 3498 3499 3500 3501
/*
# lpfc_max_scsicmpl_time: Use scsi command completion time to control I/O queue
# depth. Default value is 0. When the value of this parameter is zero the
# SCSI command completion time is not used for controlling I/O queue depth. When
# the parameter is set to a non-zero value, the I/O queue depth is controlled
# to limit the I/O completion time to the parameter value.
# The value is set in milliseconds.
*/
static int lpfc_max_scsicmpl_time;
3502
module_param(lpfc_max_scsicmpl_time, int, S_IRUGO);
3503 3504 3505 3506 3507 3508 3509 3510 3511 3512 3513 3514 3515 3516 3517 3518 3519 3520 3521 3522 3523 3524
MODULE_PARM_DESC(lpfc_max_scsicmpl_time,
	"Use command completion time to control queue depth");
lpfc_vport_param_show(max_scsicmpl_time);
lpfc_vport_param_init(max_scsicmpl_time, 0, 0, 60000);
static int
lpfc_max_scsicmpl_time_set(struct lpfc_vport *vport, int val)
{
	struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
	struct lpfc_nodelist *ndlp, *next_ndlp;

	if (val == vport->cfg_max_scsicmpl_time)
		return 0;
	if ((val < 0) || (val > 60000))
		return -EINVAL;
	vport->cfg_max_scsicmpl_time = val;

	spin_lock_irq(shost->host_lock);
	list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
		if (!NLP_CHK_NODE_ACT(ndlp))
			continue;
		if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
			continue;
3525
		ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth;
3526 3527 3528 3529 3530 3531 3532 3533 3534
	}
	spin_unlock_irq(shost->host_lock);
	return 0;
}
lpfc_vport_param_store(max_scsicmpl_time);
static DEVICE_ATTR(lpfc_max_scsicmpl_time, S_IRUGO | S_IWUSR,
		   lpfc_max_scsicmpl_time_show,
		   lpfc_max_scsicmpl_time_store);

已提交
3535 3536 3537 3538 3539 3540 3541 3542 3543
/*
# 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
3544
# value [0,63]. cr_count can take value [1,255]. Default value of cr_delay
已提交
3545 3546 3547
# is 0. Default value of cr_count is 1. The cr_count feature is disabled if
# cr_delay is set to 0.
*/
3548
LPFC_ATTR_RW(cr_delay, 0, 0, 63, "A count of milliseconds after which an "
已提交
3549 3550
		"interrupt response is generated");

3551
LPFC_ATTR_RW(cr_count, 1, 1, 255, "A count of I/O completions after which an "
已提交
3552 3553
		"interrupt response is generated");

3554 3555 3556 3557 3558 3559 3560 3561
/*
# 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");

3562 3563 3564 3565 3566
/*
# lpfc_multi_ring_rctl:  If lpfc_multi_ring_support is enabled, this
# identifies what rctl value to configure the additional ring for.
# Value range is [1,0xff]. Default value is 4 (Unsolicated Data).
*/
3567
LPFC_ATTR_R(multi_ring_rctl, FC_RCTL_DD_UNSOL_DATA, 1,
3568 3569 3570 3571 3572 3573 3574
	     255, "Identifies RCTL for additional ring configuration");

/*
# lpfc_multi_ring_type:  If lpfc_multi_ring_support is enabled, this
# identifies what type value to configure the additional ring for.
# Value range is [1,0xff]. Default value is 5 (LLC/SNAP).
*/
3575
LPFC_ATTR_R(multi_ring_type, FC_TYPE_IP, 1,
3576 3577
	     255, "Identifies TYPE for additional ring configuration");

已提交
3578 3579 3580 3581 3582 3583 3584
/*
# 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.
*/
3585
LPFC_VPORT_ATTR_RW(fdmi_on, 0, 0, 2, "Enable FDMI support");
已提交
3586 3587 3588 3589 3590

/*
# Specifies the maximum number of ELS cmds we can have outstanding (for
# discovery). Value range is [1,64]. Default value = 32.
*/
3591
LPFC_VPORT_ATTR(discovery_threads, 32, 1, 64, "Maximum number of ELS commands "
已提交
3592 3593 3594
		 "during discovery");

/*
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3595 3596 3597
# 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.
已提交
3598
*/
3599
LPFC_VPORT_ATTR_R(max_luns, 255, 0, 65535, "Maximum allowed LUN");
已提交
3600

3601 3602 3603 3604 3605 3606 3607
/*
# 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");

3608 3609 3610
/*
# lpfc_use_msi: Use MSI (Message Signaled Interrupts) in systems that
#		support this feature
3611
#       0  = MSI disabled
3612
#       1  = MSI enabled
3613 3614
#       2  = MSI-X enabled (default)
# Value range is [0,2]. Default value is 2.
3615
*/
3616
LPFC_ATTR_R(use_msi, 2, 0, 2, "Use Message Signaled Interrupts (1) or "
3617
	    "MSI-X (2), if possible");
3618

3619 3620 3621 3622 3623 3624 3625 3626 3627 3628 3629 3630 3631 3632 3633 3634 3635 3636 3637 3638 3639 3640 3641 3642
/*
# lpfc_fcp_imax: Set the maximum number of fast-path FCP interrupts per second
#
# Value range is [636,651042]. Default value is 10000.
*/
LPFC_ATTR_R(fcp_imax, LPFC_FP_DEF_IMAX, LPFC_MIM_IMAX, LPFC_DMULT_CONST,
	    "Set the maximum number of fast-path FCP interrupts per second");

/*
# lpfc_fcp_wq_count: Set the number of fast-path FCP work queues
#
# Value range is [1,31]. Default value is 4.
*/
LPFC_ATTR_R(fcp_wq_count, LPFC_FP_WQN_DEF, LPFC_FP_WQN_MIN, LPFC_FP_WQN_MAX,
	    "Set the number of fast-path FCP work queues, if possible");

/*
# lpfc_fcp_eq_count: Set the number of fast-path FCP event queues
#
# Value range is [1,7]. Default value is 1.
*/
LPFC_ATTR_R(fcp_eq_count, LPFC_FP_EQN_DEF, LPFC_FP_EQN_MIN, LPFC_FP_EQN_MAX,
	    "Set the number of fast-path FCP event queues, if possible");

3643 3644 3645 3646 3647 3648 3649
/*
# lpfc_enable_hba_reset: Allow or prevent HBA resets to the hardware.
#       0  = HBA resets disabled
#       1  = HBA resets enabled (default)
# Value range is [0,1]. Default value is 1.
*/
LPFC_ATTR_R(enable_hba_reset, 1, 0, 1, "Enable HBA resets from the driver.");
3650

3651
/*
3652
# lpfc_enable_hba_heartbeat: Disable HBA heartbeat timer..
3653 3654 3655 3656
#       0  = HBA Heartbeat disabled
#       1  = HBA Heartbeat enabled (default)
# Value range is [0,1]. Default value is 1.
*/
3657
LPFC_ATTR_R(enable_hba_heartbeat, 0, 0, 1, "Enable HBA Heartbeat.");
3658

3659 3660 3661 3662 3663 3664 3665 3666 3667 3668 3669 3670 3671 3672 3673 3674 3675
/*
# lpfc_enable_bg: Enable BlockGuard (Emulex's Implementation of T10-DIF)
#       0  = BlockGuard disabled (default)
#       1  = BlockGuard enabled
# Value range is [0,1]. Default value is 0.
*/
LPFC_ATTR_R(enable_bg, 0, 0, 1, "Enable BlockGuard Support");

/*
# lpfc_prot_mask: i
#	- Bit mask of host protection capabilities used to register with the
#	  SCSI mid-layer
# 	- Only meaningful if BG is turned on (lpfc_enable_bg=1).
#	- Allows you to ultimately specify which profiles to use
#	- Default will result in registering capabilities for all profiles.
#
*/
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3676 3677 3678
unsigned int lpfc_prot_mask = SHOST_DIF_TYPE1_PROTECTION |
			      SHOST_DIX_TYPE0_PROTECTION |
			      SHOST_DIX_TYPE1_PROTECTION;
3679

3680
module_param(lpfc_prot_mask, uint, S_IRUGO);
3681 3682 3683 3684 3685 3686 3687 3688 3689 3690 3691
MODULE_PARM_DESC(lpfc_prot_mask, "host protection mask");

/*
# lpfc_prot_guard: i
#	- Bit mask of protection guard types to register with the SCSI mid-layer
# 	- Guard types are currently either 1) IP checksum 2) T10-DIF CRC
#	- Allows you to ultimately specify which profiles to use
#	- Default will result in registering capabilities for all guard types
#
*/
unsigned char lpfc_prot_guard = SHOST_DIX_GUARD_IP;
3692
module_param(lpfc_prot_guard, byte, S_IRUGO);
3693 3694
MODULE_PARM_DESC(lpfc_prot_guard, "host protection guard type");

3695 3696 3697 3698 3699 3700 3701 3702 3703 3704 3705 3706 3707 3708 3709
/*
 * Delay initial NPort discovery when Clean Address bit is cleared in
 * FLOGI/FDISC accept and FCID/Fabric name/Fabric portname is changed.
 * This parameter can have value 0 or 1.
 * When this parameter is set to 0, no delay is added to the initial
 * discovery.
 * When this parameter is set to non-zero value, initial Nport discovery is
 * delayed by ra_tov seconds when Clean Address bit is cleared in FLOGI/FDISC
 * accept and FCID/Fabric name/Fabric portname is changed.
 * Driver always delay Nport discovery for subsequent FLOGI/FDISC completion
 * when Clean Address bit is cleared in FLOGI/FDISC
 * accept and FCID/Fabric name/Fabric portname is changed.
 * Default value is 0.
 */
int lpfc_delay_discovery;
3710
module_param(lpfc_delay_discovery, int, S_IRUGO);
3711 3712 3713
MODULE_PARM_DESC(lpfc_delay_discovery,
	"Delay NPort discovery when Clean Address bit is cleared. "
	"Allowed values: 0,1.");
3714

3715
/*
3716
 * lpfc_sg_seg_cnt - Initial Maximum DMA Segment Count
3717 3718 3719 3720 3721 3722 3723
 * This value can be set to values between 64 and 256. The default value is
 * 64, but may be increased to allow for larger Max I/O sizes. The scsi layer
 * will be allowed to request I/Os of sizes up to (MAX_SEG_COUNT * SEG_SIZE).
 */
LPFC_ATTR_R(sg_seg_cnt, LPFC_DEFAULT_SG_SEG_CNT, LPFC_DEFAULT_SG_SEG_CNT,
	    LPFC_MAX_SG_SEG_CNT, "Max Scatter Gather Segment Count");

3724 3725 3726 3727
LPFC_ATTR_R(prot_sg_seg_cnt, LPFC_DEFAULT_PROT_SG_SEG_CNT,
		LPFC_DEFAULT_PROT_SG_SEG_CNT, LPFC_MAX_PROT_SG_SEG_CNT,
		"Max Protection Scatter Gather Segment Count");

3728
struct device_attribute *lpfc_hba_attrs[] = {
3729 3730 3731 3732
	&dev_attr_bg_info,
	&dev_attr_bg_guard_err,
	&dev_attr_bg_apptag_err,
	&dev_attr_bg_reftag_err,
3733 3734 3735 3736 3737 3738 3739 3740 3741
	&dev_attr_info,
	&dev_attr_serialnum,
	&dev_attr_modeldesc,
	&dev_attr_modelname,
	&dev_attr_programtype,
	&dev_attr_portnum,
	&dev_attr_fwrev,
	&dev_attr_hdw,
	&dev_attr_option_rom_version,
3742
	&dev_attr_link_state,
3743
	&dev_attr_num_discovered_ports,
3744
	&dev_attr_menlo_mgmt_mode,
3745
	&dev_attr_lpfc_drvr_version,
3746
	&dev_attr_lpfc_enable_fip,
3747 3748 3749
	&dev_attr_lpfc_temp_sensor,
	&dev_attr_lpfc_log_verbose,
	&dev_attr_lpfc_lun_queue_depth,
3750
	&dev_attr_lpfc_tgt_queue_depth,
3751 3752 3753 3754 3755 3756 3757 3758 3759 3760 3761 3762 3763 3764 3765 3766 3767 3768
	&dev_attr_lpfc_hba_queue_depth,
	&dev_attr_lpfc_peer_port_login,
	&dev_attr_lpfc_nodev_tmo,
	&dev_attr_lpfc_devloss_tmo,
	&dev_attr_lpfc_fcp_class,
	&dev_attr_lpfc_use_adisc,
	&dev_attr_lpfc_ack0,
	&dev_attr_lpfc_topology,
	&dev_attr_lpfc_scan_down,
	&dev_attr_lpfc_link_speed,
	&dev_attr_lpfc_cr_delay,
	&dev_attr_lpfc_cr_count,
	&dev_attr_lpfc_multi_ring_support,
	&dev_attr_lpfc_multi_ring_rctl,
	&dev_attr_lpfc_multi_ring_type,
	&dev_attr_lpfc_fdmi_on,
	&dev_attr_lpfc_max_luns,
	&dev_attr_lpfc_enable_npiv,
3769
	&dev_attr_lpfc_enable_rrq,
3770 3771 3772 3773 3774 3775 3776 3777 3778 3779 3780 3781 3782
	&dev_attr_nport_evt_cnt,
	&dev_attr_board_mode,
	&dev_attr_max_vpi,
	&dev_attr_used_vpi,
	&dev_attr_max_rpi,
	&dev_attr_used_rpi,
	&dev_attr_max_xri,
	&dev_attr_used_xri,
	&dev_attr_npiv_info,
	&dev_attr_issue_reset,
	&dev_attr_lpfc_poll,
	&dev_attr_lpfc_poll_tmo,
	&dev_attr_lpfc_use_msi,
3783 3784 3785
	&dev_attr_lpfc_fcp_imax,
	&dev_attr_lpfc_fcp_wq_count,
	&dev_attr_lpfc_fcp_eq_count,
3786
	&dev_attr_lpfc_enable_bg,
3787 3788 3789 3790 3791 3792
	&dev_attr_lpfc_soft_wwnn,
	&dev_attr_lpfc_soft_wwpn,
	&dev_attr_lpfc_soft_wwn_enable,
	&dev_attr_lpfc_enable_hba_reset,
	&dev_attr_lpfc_enable_hba_heartbeat,
	&dev_attr_lpfc_sg_seg_cnt,
3793
	&dev_attr_lpfc_max_scsicmpl_time,
3794
	&dev_attr_lpfc_stat_data_ctrl,
3795
	&dev_attr_lpfc_prot_sg_seg_cnt,
J
James Smart 已提交
3796 3797
	&dev_attr_lpfc_aer_support,
	&dev_attr_lpfc_aer_state_cleanup,
3798
	&dev_attr_lpfc_sriov_nr_virtfn,
3799
	&dev_attr_lpfc_suppress_link_up,
3800 3801 3802 3803
	&dev_attr_lpfc_iocb_cnt,
	&dev_attr_iocb_hw,
	&dev_attr_txq_hw,
	&dev_attr_txcmplq_hw,
3804 3805
	&dev_attr_lpfc_fips_level,
	&dev_attr_lpfc_fips_rev,
3806
	&dev_attr_lpfc_dss,
3807
	&dev_attr_lpfc_sriov_hw_max_virtfn,
已提交
3808 3809 3810
	NULL,
};

3811 3812
struct device_attribute *lpfc_vport_attrs[] = {
	&dev_attr_info,
3813
	&dev_attr_link_state,
3814 3815 3816 3817
	&dev_attr_num_discovered_ports,
	&dev_attr_lpfc_drvr_version,
	&dev_attr_lpfc_log_verbose,
	&dev_attr_lpfc_lun_queue_depth,
3818
	&dev_attr_lpfc_tgt_queue_depth,
3819 3820 3821 3822 3823 3824 3825 3826 3827 3828 3829 3830
	&dev_attr_lpfc_nodev_tmo,
	&dev_attr_lpfc_devloss_tmo,
	&dev_attr_lpfc_hba_queue_depth,
	&dev_attr_lpfc_peer_port_login,
	&dev_attr_lpfc_restrict_login,
	&dev_attr_lpfc_fcp_class,
	&dev_attr_lpfc_use_adisc,
	&dev_attr_lpfc_fdmi_on,
	&dev_attr_lpfc_max_luns,
	&dev_attr_nport_evt_cnt,
	&dev_attr_npiv_info,
	&dev_attr_lpfc_enable_da_id,
3831 3832
	&dev_attr_lpfc_max_scsicmpl_time,
	&dev_attr_lpfc_stat_data_ctrl,
3833
	&dev_attr_lpfc_static_vport,
3834 3835
	&dev_attr_lpfc_fips_level,
	&dev_attr_lpfc_fips_rev,
3836 3837 3838
	NULL,
};

3839
/**
3840
 * sysfs_ctlreg_write - Write method for writing to ctlreg
3841
 * @filp: open sysfs file
3842 3843 3844 3845 3846 3847 3848 3849 3850 3851 3852 3853 3854 3855 3856 3857
 * @kobj: kernel kobject that contains the kernel class device.
 * @bin_attr: kernel attributes passed to us.
 * @buf: contains the data to be written to the adapter IOREG space.
 * @off: offset into buffer to beginning of data.
 * @count: bytes to transfer.
 *
 * Description:
 * Accessed via /sys/class/scsi_host/hostxxx/ctlreg.
 * Uses the adapter io control registers to send buf contents to the adapter.
 *
 * Returns:
 * -ERANGE off and count combo out of range
 * -EINVAL off, count or buff address invalid
 * -EPERM adapter is offline
 * value of count, buf contents written
 **/
已提交
3858
static ssize_t
3859 3860
sysfs_ctlreg_write(struct file *filp, struct kobject *kobj,
		   struct bin_attribute *bin_attr,
3861
		   char *buf, loff_t off, size_t count)
已提交
3862 3863
{
	size_t buf_off;
3864 3865
	struct device *dev = container_of(kobj, struct device, kobj);
	struct Scsi_Host  *shost = class_to_shost(dev);
J
James Smart 已提交
3866 3867
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
已提交
3868

3869 3870 3871
	if (phba->sli_rev >= LPFC_SLI_REV4)
		return -EPERM;

已提交
3872 3873 3874 3875 3876 3877 3878 3879
	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;

J
James Smart 已提交
3880
	if (!(vport->fc_flag & FC_OFFLINE_MODE)) {
已提交
3881 3882 3883
		return -EPERM;
	}

J
James Smart 已提交
3884
	spin_lock_irq(&phba->hbalock);
已提交
3885 3886 3887 3888
	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);

J
James Smart 已提交
3889
	spin_unlock_irq(&phba->hbalock);
已提交
3890 3891 3892 3893

	return count;
}

3894
/**
3895
 * sysfs_ctlreg_read - Read method for reading from ctlreg
3896
 * @filp: open sysfs file
3897 3898
 * @kobj: kernel kobject that contains the kernel class device.
 * @bin_attr: kernel attributes passed to us.
3899
 * @buf: if successful contains the data from the adapter IOREG space.
3900 3901 3902 3903 3904 3905 3906 3907 3908 3909 3910 3911
 * @off: offset into buffer to beginning of data.
 * @count: bytes to transfer.
 *
 * Description:
 * Accessed via /sys/class/scsi_host/hostxxx/ctlreg.
 * Uses the adapter io control registers to read data into buf.
 *
 * Returns:
 * -ERANGE off and count combo out of range
 * -EINVAL off, count or buff address invalid
 * value of count, buf contents read
 **/
已提交
3912
static ssize_t
3913 3914
sysfs_ctlreg_read(struct file *filp, struct kobject *kobj,
		  struct bin_attribute *bin_attr,
3915
		  char *buf, loff_t off, size_t count)
已提交
3916 3917 3918
{
	size_t buf_off;
	uint32_t * tmp_ptr;
3919 3920
	struct device *dev = container_of(kobj, struct device, kobj);
	struct Scsi_Host  *shost = class_to_shost(dev);
J
James Smart 已提交
3921 3922
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
已提交
3923

3924 3925 3926
	if (phba->sli_rev >= LPFC_SLI_REV4)
		return -EPERM;

已提交
3927 3928 3929 3930 3931 3932 3933 3934 3935 3936 3937
	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;

J
James Smart 已提交
3938
	spin_lock_irq(&phba->hbalock);
已提交
3939 3940 3941 3942 3943 3944

	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);
	}

J
James Smart 已提交
3945
	spin_unlock_irq(&phba->hbalock);
已提交
3946 3947 3948 3949 3950 3951 3952 3953 3954 3955 3956 3957 3958 3959

	return count;
}

static struct bin_attribute sysfs_ctlreg_attr = {
	.attr = {
		.name = "ctlreg",
		.mode = S_IRUSR | S_IWUSR,
	},
	.size = 256,
	.read = sysfs_ctlreg_read,
	.write = sysfs_ctlreg_write,
};

3960
/**
3961
 * sysfs_mbox_idle - frees the sysfs mailbox
3962 3963
 * @phba: lpfc_hba pointer
 **/
已提交
3964
static void
J
James Smart 已提交
3965
sysfs_mbox_idle(struct lpfc_hba *phba)
已提交
3966 3967 3968 3969 3970 3971 3972 3973 3974 3975 3976
{
	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;
	}
}

3977
/**
3978
 * sysfs_mbox_write - Write method for writing information via mbox
3979
 * @filp: open sysfs file
3980 3981 3982 3983 3984 3985 3986 3987 3988 3989 3990 3991 3992 3993 3994 3995 3996 3997 3998
 * @kobj: kernel kobject that contains the kernel class device.
 * @bin_attr: kernel attributes passed to us.
 * @buf: contains the data to be written to sysfs mbox.
 * @off: offset into buffer to beginning of data.
 * @count: bytes to transfer.
 *
 * Description:
 * Accessed via /sys/class/scsi_host/hostxxx/mbox.
 * Uses the sysfs mbox to send buf contents to the adapter.
 *
 * Returns:
 * -ERANGE off and count combo out of range
 * -EINVAL off, count or buff address invalid
 * zero if count is zero
 * -EPERM adapter is offline
 * -ENOMEM failed to allocate memory for the mail box
 * -EAGAIN offset, state or mbox is NULL
 * count number of bytes transferred
 **/
已提交
3999
static ssize_t
4000 4001
sysfs_mbox_write(struct file *filp, struct kobject *kobj,
		 struct bin_attribute *bin_attr,
4002
		 char *buf, loff_t off, size_t count)
已提交
4003
{
4004 4005
	struct device *dev = container_of(kobj, struct device, kobj);
	struct Scsi_Host  *shost = class_to_shost(dev);
J
James Smart 已提交
4006 4007 4008
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
	struct lpfcMboxq  *mbox = NULL;
已提交
4009 4010 4011 4012 4013 4014 4015 4016 4017 4018 4019 4020 4021 4022

	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;
J
James Smart 已提交
4023
		memset(mbox, 0, sizeof (LPFC_MBOXQ_t));
已提交
4024 4025
	}

J
James Smart 已提交
4026
	spin_lock_irq(&phba->hbalock);
已提交
4027 4028 4029 4030 4031 4032 4033 4034 4035 4036

	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           ||
4037
		    phba->sysfs_mbox.mbox   == NULL) {
已提交
4038
			sysfs_mbox_idle(phba);
J
James Smart 已提交
4039
			spin_unlock_irq(&phba->hbalock);
4040
			return -EAGAIN;
已提交
4041 4042 4043
		}
	}

4044
	memcpy((uint8_t *) &phba->sysfs_mbox.mbox->u.mb + off,
已提交
4045 4046 4047 4048
	       buf, count);

	phba->sysfs_mbox.offset = off + count;

J
James Smart 已提交
4049
	spin_unlock_irq(&phba->hbalock);
已提交
4050 4051 4052 4053

	return count;
}

4054
/**
4055
 * sysfs_mbox_read - Read method for reading information via mbox
4056
 * @filp: open sysfs file
4057 4058 4059 4060 4061 4062 4063 4064 4065 4066 4067 4068 4069 4070 4071 4072 4073 4074 4075 4076 4077
 * @kobj: kernel kobject that contains the kernel class device.
 * @bin_attr: kernel attributes passed to us.
 * @buf: contains the data to be read from sysfs mbox.
 * @off: offset into buffer to beginning of data.
 * @count: bytes to transfer.
 *
 * Description:
 * Accessed via /sys/class/scsi_host/hostxxx/mbox.
 * Uses the sysfs mbox to receive data from to the adapter.
 *
 * Returns:
 * -ERANGE off greater than mailbox command size
 * -EINVAL off, count or buff address invalid
 * zero if off and count are zero
 * -EACCES adapter over temp
 * -EPERM garbage can value to catch a multitude of errors
 * -EAGAIN management IO not permitted, state or off error
 * -ETIME mailbox timeout
 * -ENODEV mailbox error
 * count number of bytes transferred
 **/
已提交
4078
static ssize_t
4079 4080
sysfs_mbox_read(struct file *filp, struct kobject *kobj,
		struct bin_attribute *bin_attr,
4081
		char *buf, loff_t off, size_t count)
已提交
4082
{
4083 4084
	struct device *dev = container_of(kobj, struct device, kobj);
	struct Scsi_Host  *shost = class_to_shost(dev);
J
James Smart 已提交
4085 4086
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
已提交
4087
	int rc;
4088
	MAILBOX_t *pmb;
已提交
4089

4090
	if (off > MAILBOX_CMD_SIZE)
已提交
4091 4092
		return -ERANGE;

4093 4094
	if ((count + off) > MAILBOX_CMD_SIZE)
		count = MAILBOX_CMD_SIZE - off;
已提交
4095 4096 4097 4098 4099 4100 4101

	if (off % 4 ||  count % 4 || (unsigned long)buf % 4)
		return -EINVAL;

	if (off && count == 0)
		return 0;

J
James Smart 已提交
4102
	spin_lock_irq(&phba->hbalock);
已提交
4103

4104 4105 4106
	if (phba->over_temp_state == HBA_OVER_TEMP) {
		sysfs_mbox_idle(phba);
		spin_unlock_irq(&phba->hbalock);
4107
		return  -EACCES;
4108 4109
	}

已提交
4110 4111 4112
	if (off == 0 &&
	    phba->sysfs_mbox.state  == SMBOX_WRITING &&
	    phba->sysfs_mbox.offset >= 2 * sizeof(uint32_t)) {
4113 4114
		pmb = &phba->sysfs_mbox.mbox->u.mb;
		switch (pmb->mbxCommand) {
已提交
4115 4116 4117 4118 4119 4120 4121 4122 4123 4124 4125 4126 4127
			/* Offline only */
		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_SET_MASK:
		case MBX_SET_DEBUG:
J
James Smart 已提交
4128
			if (!(vport->fc_flag & FC_OFFLINE_MODE)) {
已提交
4129 4130
				printk(KERN_WARNING "mbox_read:Command 0x%x "
				       "is illegal in on-line state\n",
4131
				       pmb->mbxCommand);
已提交
4132
				sysfs_mbox_idle(phba);
J
James Smart 已提交
4133
				spin_unlock_irq(&phba->hbalock);
已提交
4134 4135
				return -EPERM;
			}
4136 4137
		case MBX_WRITE_NV:
		case MBX_WRITE_VPARMS:
已提交
4138 4139 4140 4141 4142 4143 4144 4145 4146 4147 4148
		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:
4149
		case MBX_KILL_BOARD:
已提交
4150 4151
		case MBX_LOAD_AREA:
		case MBX_LOAD_EXP_ROM:
4152 4153
		case MBX_BEACON:
		case MBX_DEL_LD_ENTRY:
4154 4155
		case MBX_SET_VARIABLE:
		case MBX_WRITE_WWN:
4156 4157
		case MBX_PORT_CAPABILITIES:
		case MBX_PORT_IOV_CONTROL:
已提交
4158
			break;
4159 4160
		case MBX_SECURITY_MGMT:
		case MBX_AUTH_PORT:
4161 4162 4163 4164 4165
			if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) {
				printk(KERN_WARNING "mbox_read:Command 0x%x "
				       "is not permitted\n", pmb->mbxCommand);
				sysfs_mbox_idle(phba);
				spin_unlock_irq(&phba->hbalock);
4166
				return -EPERM;
4167
			}
4168
			break;
已提交
4169
		case MBX_READ_SPARM64:
4170
		case MBX_READ_TOPOLOGY:
已提交
4171 4172 4173 4174 4175
		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",
4176
			       pmb->mbxCommand);
已提交
4177
			sysfs_mbox_idle(phba);
J
James Smart 已提交
4178
			spin_unlock_irq(&phba->hbalock);
已提交
4179 4180 4181
			return -EPERM;
		default:
			printk(KERN_WARNING "mbox_read: Unknown Command 0x%x\n",
4182
			       pmb->mbxCommand);
已提交
4183
			sysfs_mbox_idle(phba);
J
James Smart 已提交
4184
			spin_unlock_irq(&phba->hbalock);
已提交
4185 4186 4187
			return -EPERM;
		}

4188
		/* If HBA encountered an error attention, allow only DUMP
4189
		 * or RESTART mailbox commands until the HBA is restarted.
4190
		 */
4191
		if (phba->pport->stopped &&
4192 4193 4194 4195
		    pmb->mbxCommand != MBX_DUMP_MEMORY &&
		    pmb->mbxCommand != MBX_RESTART &&
		    pmb->mbxCommand != MBX_WRITE_VPARMS &&
		    pmb->mbxCommand != MBX_WRITE_WWN)
4196 4197 4198
			lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
					"1259 mbox: Issued mailbox cmd "
					"0x%x while in stopped state.\n",
4199
					pmb->mbxCommand);
4200

4201 4202
		phba->sysfs_mbox.mbox->vport = vport;

4203 4204 4205
		/* Don't allow mailbox commands to be sent when blocked
		 * or when in the middle of discovery
		 */
4206
		if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) {
4207
			sysfs_mbox_idle(phba);
J
James Smart 已提交
4208
			spin_unlock_irq(&phba->hbalock);
4209 4210 4211
			return  -EAGAIN;
		}

J
James Smart 已提交
4212
		if ((vport->fc_flag & FC_OFFLINE_MODE) ||
4213
		    (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE))) {
已提交
4214

J
James Smart 已提交
4215
			spin_unlock_irq(&phba->hbalock);
已提交
4216 4217 4218
			rc = lpfc_sli_issue_mbox (phba,
						  phba->sysfs_mbox.mbox,
						  MBX_POLL);
J
James Smart 已提交
4219
			spin_lock_irq(&phba->hbalock);
已提交
4220 4221

		} else {
J
James Smart 已提交
4222
			spin_unlock_irq(&phba->hbalock);
已提交
4223 4224
			rc = lpfc_sli_issue_mbox_wait (phba,
						       phba->sysfs_mbox.mbox,
4225
				lpfc_mbox_tmo_val(phba, pmb->mbxCommand) * HZ);
J
James Smart 已提交
4226
			spin_lock_irq(&phba->hbalock);
已提交
4227 4228 4229
		}

		if (rc != MBX_SUCCESS) {
4230 4231 4232
			if (rc == MBX_TIMEOUT) {
				phba->sysfs_mbox.mbox = NULL;
			}
已提交
4233
			sysfs_mbox_idle(phba);
J
James Smart 已提交
4234
			spin_unlock_irq(&phba->hbalock);
4235
			return  (rc == MBX_TIMEOUT) ? -ETIME : -ENODEV;
已提交
4236 4237 4238 4239 4240 4241 4242
		}
		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);
J
James Smart 已提交
4243
		spin_unlock_irq(&phba->hbalock);
4244
		return -EAGAIN;
已提交
4245 4246
	}

4247
	memcpy(buf, (uint8_t *) &pmb + off, count);
已提交
4248 4249 4250

	phba->sysfs_mbox.offset = off + count;

4251
	if (phba->sysfs_mbox.offset == MAILBOX_CMD_SIZE)
已提交
4252 4253
		sysfs_mbox_idle(phba);

J
James Smart 已提交
4254
	spin_unlock_irq(&phba->hbalock);
已提交
4255 4256 4257 4258 4259 4260 4261 4262 4263

	return count;
}

static struct bin_attribute sysfs_mbox_attr = {
	.attr = {
		.name = "mbox",
		.mode = S_IRUSR | S_IWUSR,
	},
4264
	.size = MAILBOX_SYSFS_MAX,
已提交
4265 4266 4267 4268
	.read = sysfs_mbox_read,
	.write = sysfs_mbox_write,
};

4269
/**
4270
 * lpfc_alloc_sysfs_attr - Creates the ctlreg and mbox entries
4271 4272 4273 4274 4275 4276
 * @vport: address of lpfc vport structure.
 *
 * Return codes:
 * zero on success
 * error return code from sysfs_create_bin_file()
 **/
已提交
4277
int
J
James Smart 已提交
4278
lpfc_alloc_sysfs_attr(struct lpfc_vport *vport)
已提交
4279
{
J
James Smart 已提交
4280
	struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
已提交
4281 4282
	int error;

4283
	error = sysfs_create_bin_file(&shost->shost_dev.kobj,
4284 4285 4286 4287
				      &sysfs_drvr_stat_data_attr);

	/* Virtual ports do not need ctrl_reg and mbox */
	if (error || vport->port_type == LPFC_NPIV_PORT)
已提交
4288 4289
		goto out;

4290
	error = sysfs_create_bin_file(&shost->shost_dev.kobj,
4291
				      &sysfs_ctlreg_attr);
已提交
4292
	if (error)
4293
		goto out_remove_stat_attr;
已提交
4294

4295
	error = sysfs_create_bin_file(&shost->shost_dev.kobj,
4296
				      &sysfs_mbox_attr);
4297
	if (error)
4298
		goto out_remove_ctlreg_attr;
4299

已提交
4300 4301
	return 0;
out_remove_ctlreg_attr:
4302
	sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr);
4303 4304 4305
out_remove_stat_attr:
	sysfs_remove_bin_file(&shost->shost_dev.kobj,
			&sysfs_drvr_stat_data_attr);
已提交
4306 4307 4308 4309
out:
	return error;
}

4310
/**
4311
 * lpfc_free_sysfs_attr - Removes the ctlreg and mbox entries
4312 4313
 * @vport: address of lpfc vport structure.
 **/
已提交
4314
void
J
James Smart 已提交
4315
lpfc_free_sysfs_attr(struct lpfc_vport *vport)
已提交
4316
{
J
James Smart 已提交
4317
	struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4318 4319
	sysfs_remove_bin_file(&shost->shost_dev.kobj,
		&sysfs_drvr_stat_data_attr);
4320 4321 4322
	/* Virtual ports do not need ctrl_reg and mbox */
	if (vport->port_type == LPFC_NPIV_PORT)
		return;
4323 4324
	sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_mbox_attr);
	sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr);
已提交
4325 4326 4327 4328 4329 4330 4331
}


/*
 * Dynamic FC Host Attributes Support
 */

4332
/**
4333
 * lpfc_get_host_port_id - Copy the vport DID into the scsi host port id
4334 4335
 * @shost: kernel scsi host pointer.
 **/
已提交
4336 4337 4338
static void
lpfc_get_host_port_id(struct Scsi_Host *shost)
{
J
James Smart 已提交
4339 4340
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;

已提交
4341
	/* note: fc_myDID already in cpu endianness */
J
James Smart 已提交
4342
	fc_host_port_id(shost) = vport->fc_myDID;
已提交
4343 4344
}

4345
/**
4346
 * lpfc_get_host_port_type - Set the value of the scsi host port type
4347 4348
 * @shost: kernel scsi host pointer.
 **/
已提交
4349 4350 4351
static void
lpfc_get_host_port_type(struct Scsi_Host *shost)
{
J
James Smart 已提交
4352 4353
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
已提交
4354 4355 4356

	spin_lock_irq(shost->host_lock);

4357 4358 4359
	if (vport->port_type == LPFC_NPIV_PORT) {
		fc_host_port_type(shost) = FC_PORTTYPE_NPIV;
	} else if (lpfc_is_link_up(phba)) {
4360
		if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
J
James Smart 已提交
4361
			if (vport->fc_flag & FC_PUBLIC_LOOP)
已提交
4362 4363 4364 4365
				fc_host_port_type(shost) = FC_PORTTYPE_NLPORT;
			else
				fc_host_port_type(shost) = FC_PORTTYPE_LPORT;
		} else {
J
James Smart 已提交
4366
			if (vport->fc_flag & FC_FABRIC)
已提交
4367 4368 4369 4370 4371 4372 4373 4374 4375 4376
				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);
}

4377
/**
4378
 * lpfc_get_host_port_state - Set the value of the scsi host port state
4379 4380
 * @shost: kernel scsi host pointer.
 **/
已提交
4381 4382 4383
static void
lpfc_get_host_port_state(struct Scsi_Host *shost)
{
J
James Smart 已提交
4384 4385
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
已提交
4386 4387 4388

	spin_lock_irq(shost->host_lock);

J
James Smart 已提交
4389
	if (vport->fc_flag & FC_OFFLINE_MODE)
已提交
4390 4391
		fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE;
	else {
J
James Smart 已提交
4392 4393
		switch (phba->link_state) {
		case LPFC_LINK_UNKNOWN:
已提交
4394 4395 4396 4397 4398 4399 4400 4401 4402 4403 4404 4405 4406 4407 4408 4409 4410 4411 4412 4413 4414
		case LPFC_LINK_DOWN:
			fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN;
			break;
		case LPFC_LINK_UP:
		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);
}

4415
/**
4416
 * lpfc_get_host_speed - Set the value of the scsi host speed
4417 4418
 * @shost: kernel scsi host pointer.
 **/
已提交
4419 4420 4421
static void
lpfc_get_host_speed(struct Scsi_Host *shost)
{
J
James Smart 已提交
4422 4423
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
已提交
4424 4425 4426

	spin_lock_irq(shost->host_lock);

J
James Smart 已提交
4427
	if (lpfc_is_link_up(phba)) {
已提交
4428
		switch(phba->fc_linkspeed) {
4429 4430
		case LPFC_LINK_SPEED_1GHZ:
			fc_host_speed(shost) = FC_PORTSPEED_1GBIT;
已提交
4431
			break;
4432 4433
		case LPFC_LINK_SPEED_2GHZ:
			fc_host_speed(shost) = FC_PORTSPEED_2GBIT;
已提交
4434
			break;
4435 4436
		case LPFC_LINK_SPEED_4GHZ:
			fc_host_speed(shost) = FC_PORTSPEED_4GBIT;
已提交
4437
			break;
4438 4439
		case LPFC_LINK_SPEED_8GHZ:
			fc_host_speed(shost) = FC_PORTSPEED_8GBIT;
4440
			break;
4441 4442
		case LPFC_LINK_SPEED_10GHZ:
			fc_host_speed(shost) = FC_PORTSPEED_10GBIT;
4443
			break;
4444 4445 4446 4447 4448
		case LPFC_LINK_SPEED_16GHZ:
			fc_host_speed(shost) = FC_PORTSPEED_16GBIT;
			break;
		default:
			fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
已提交
4449 4450
			break;
		}
4451 4452
	} else
		fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
已提交
4453 4454 4455 4456

	spin_unlock_irq(shost->host_lock);
}

4457
/**
4458
 * lpfc_get_host_fabric_name - Set the value of the scsi host fabric name
4459 4460
 * @shost: kernel scsi host pointer.
 **/
已提交
4461 4462 4463
static void
lpfc_get_host_fabric_name (struct Scsi_Host *shost)
{
J
James Smart 已提交
4464 4465
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
4466
	u64 node_name;
已提交
4467 4468 4469

	spin_lock_irq(shost->host_lock);

J
James Smart 已提交
4470
	if ((vport->fc_flag & FC_FABRIC) ||
4471
	    ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) &&
J
James Smart 已提交
4472
	     (vport->fc_flag & FC_PUBLIC_LOOP)))
A
Andrew Morton 已提交
4473
		node_name = wwn_to_u64(phba->fc_fabparam.nodeName.u.wwn);
已提交
4474 4475
	else
		/* fabric is local port if there is no F/FL_Port */
4476
		node_name = 0;
已提交
4477 4478 4479

	spin_unlock_irq(shost->host_lock);

4480
	fc_host_fabric_name(shost) = node_name;
已提交
4481 4482
}

4483
/**
4484
 * lpfc_get_stats - Return statistical information about the adapter
4485 4486 4487 4488 4489 4490 4491 4492 4493 4494
 * @shost: kernel scsi host pointer.
 *
 * Notes:
 * NULL on error for link down, no mbox pool, sli2 active,
 * management not allowed, memory allocation error, or mbox error.
 *
 * Returns:
 * NULL for error
 * address of the adapter host statistics
 **/
已提交
4495 4496 4497
static struct fc_host_statistics *
lpfc_get_stats(struct Scsi_Host *shost)
{
J
James Smart 已提交
4498 4499 4500
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
	struct lpfc_sli   *psli = &phba->sli;
4501
	struct fc_host_statistics *hs = &phba->link_stats;
4502
	struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets;
已提交
4503 4504
	LPFC_MBOXQ_t *pmboxq;
	MAILBOX_t *pmb;
4505
	unsigned long seconds;
4506
	int rc = 0;
已提交
4507

4508 4509 4510 4511
	/*
	 * prevent udev from issuing mailbox commands until the port is
	 * configured.
	 */
J
James Smart 已提交
4512 4513
	if (phba->link_state < LPFC_LINK_DOWN ||
	    !phba->mbox_mem_pool ||
4514
	    (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0)
4515
		return NULL;
J
James Smart 已提交
4516 4517

	if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
4518 4519
		return NULL;

已提交
4520 4521 4522 4523 4524
	pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
	if (!pmboxq)
		return NULL;
	memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));

4525
	pmb = &pmboxq->u.mb;
已提交
4526 4527 4528
	pmb->mbxCommand = MBX_READ_STATUS;
	pmb->mbxOwner = OWN_HOST;
	pmboxq->context1 = NULL;
4529
	pmboxq->vport = vport;
已提交
4530

4531
	if (vport->fc_flag & FC_OFFLINE_MODE)
已提交
4532
		rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
4533
	else
已提交
4534 4535 4536
		rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);

	if (rc != MBX_SUCCESS) {
J
James Smart 已提交
4537
		if (rc != MBX_TIMEOUT)
4538
			mempool_free(pmboxq, phba->mbox_mem_pool);
已提交
4539 4540 4541
		return NULL;
	}

4542 4543
	memset(hs, 0, sizeof (struct fc_host_statistics));

已提交
4544 4545 4546 4547 4548
	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);

4549
	memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
已提交
4550 4551 4552
	pmb->mbxCommand = MBX_READ_LNK_STAT;
	pmb->mbxOwner = OWN_HOST;
	pmboxq->context1 = NULL;
4553
	pmboxq->vport = vport;
已提交
4554

4555
	if (vport->fc_flag & FC_OFFLINE_MODE)
已提交
4556
		rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
4557
	else
已提交
4558 4559 4560
		rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);

	if (rc != MBX_SUCCESS) {
J
James Smart 已提交
4561
		if (rc != MBX_TIMEOUT)
4562
			mempool_free(pmboxq, phba->mbox_mem_pool);
已提交
4563 4564 4565 4566 4567 4568 4569 4570 4571 4572 4573
		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;

4574 4575 4576 4577 4578 4579 4580 4581
	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;

4582
	if (phba->hba_flag & HBA_FCOE_MODE) {
4583 4584 4585
		hs->lip_count = -1;
		hs->nos_count = (phba->link_events >> 1);
		hs->nos_count -= lso->link_events;
4586
	} else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
已提交
4587
		hs->lip_count = (phba->fc_eventTag >> 1);
4588
		hs->lip_count -= lso->link_events;
已提交
4589 4590 4591 4592
		hs->nos_count = -1;
	} else {
		hs->lip_count = -1;
		hs->nos_count = (phba->fc_eventTag >> 1);
4593
		hs->nos_count -= lso->link_events;
已提交
4594 4595 4596 4597
	}

	hs->dumped_frames = -1;

4598 4599 4600 4601 4602 4603
	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;
已提交
4604

4605 4606
	mempool_free(pmboxq, phba->mbox_mem_pool);

已提交
4607 4608 4609
	return hs;
}

4610
/**
4611
 * lpfc_reset_stats - Copy the adapter link stats information
4612 4613
 * @shost: kernel scsi host pointer.
 **/
4614 4615 4616
static void
lpfc_reset_stats(struct Scsi_Host *shost)
{
J
James Smart 已提交
4617 4618 4619 4620
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
	struct lpfc_sli   *psli = &phba->sli;
	struct lpfc_lnk_stat *lso = &psli->lnk_stat_offsets;
4621 4622 4623 4624
	LPFC_MBOXQ_t *pmboxq;
	MAILBOX_t *pmb;
	int rc = 0;

J
James Smart 已提交
4625
	if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
4626 4627
		return;

4628 4629 4630 4631 4632
	pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
	if (!pmboxq)
		return;
	memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));

4633
	pmb = &pmboxq->u.mb;
4634 4635 4636 4637
	pmb->mbxCommand = MBX_READ_STATUS;
	pmb->mbxOwner = OWN_HOST;
	pmb->un.varWords[0] = 0x1; /* reset request */
	pmboxq->context1 = NULL;
4638
	pmboxq->vport = vport;
4639

J
James Smart 已提交
4640
	if ((vport->fc_flag & FC_OFFLINE_MODE) ||
4641
		(!(psli->sli_flag & LPFC_SLI_ACTIVE)))
4642 4643 4644 4645 4646
		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) {
J
James Smart 已提交
4647
		if (rc != MBX_TIMEOUT)
4648 4649 4650 4651 4652 4653 4654 4655
			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;
4656
	pmboxq->vport = vport;
4657

J
James Smart 已提交
4658
	if ((vport->fc_flag & FC_OFFLINE_MODE) ||
4659
	    (!(psli->sli_flag & LPFC_SLI_ACTIVE)))
4660 4661 4662 4663 4664
		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) {
J
James Smart 已提交
4665
		if (rc != MBX_TIMEOUT)
4666 4667 4668 4669 4670 4671 4672 4673 4674 4675 4676
			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;
4677
	if (phba->hba_flag & HBA_FCOE_MODE)
4678 4679 4680
		lso->link_events = (phba->link_events >> 1);
	else
		lso->link_events = (phba->fc_eventTag >> 1);
4681 4682 4683

	psli->stats_start = get_seconds();

4684 4685
	mempool_free(pmboxq, phba->mbox_mem_pool);

4686 4687
	return;
}
已提交
4688 4689 4690 4691 4692

/*
 * The LPFC driver treats linkdown handling as target loss events so there
 * are no sysfs handlers for link_down_tmo.
 */
4693

4694
/**
4695
 * lpfc_get_node_by_target - Return the nodelist for a target
4696 4697 4698 4699 4700 4701
 * @starget: kernel scsi target pointer.
 *
 * Returns:
 * address of the node list if found
 * NULL target not found
 **/
4702 4703
static struct lpfc_nodelist *
lpfc_get_node_by_target(struct scsi_target *starget)
已提交
4704
{
J
James Smart 已提交
4705 4706
	struct Scsi_Host  *shost = dev_to_shost(starget->dev.parent);
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4707
	struct lpfc_nodelist *ndlp;
已提交
4708 4709

	spin_lock_irq(shost->host_lock);
4710
	/* Search for this, mapped, target ID */
J
James Smart 已提交
4711
	list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
4712 4713
		if (NLP_CHK_NODE_ACT(ndlp) &&
		    ndlp->nlp_state == NLP_STE_MAPPED_NODE &&
4714 4715 4716
		    starget->id == ndlp->nlp_sid) {
			spin_unlock_irq(shost->host_lock);
			return ndlp;
已提交
4717 4718 4719
		}
	}
	spin_unlock_irq(shost->host_lock);
4720 4721
	return NULL;
}
已提交
4722

4723
/**
4724
 * lpfc_get_starget_port_id - Set the target port id to the ndlp DID or -1
4725 4726
 * @starget: kernel scsi target pointer.
 **/
4727 4728 4729 4730 4731 4732
static void
lpfc_get_starget_port_id(struct scsi_target *starget)
{
	struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);

	fc_starget_port_id(starget) = ndlp ? ndlp->nlp_DID : -1;
已提交
4733 4734
}

4735
/**
4736
 * lpfc_get_starget_node_name - Set the target node name
4737 4738 4739 4740
 * @starget: kernel scsi target pointer.
 *
 * Description: Set the target node name to the ndlp node name wwn or zero.
 **/
已提交
4741 4742 4743
static void
lpfc_get_starget_node_name(struct scsi_target *starget)
{
4744
	struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
已提交
4745

4746 4747
	fc_starget_node_name(starget) =
		ndlp ? wwn_to_u64(ndlp->nlp_nodename.u.wwn) : 0;
已提交
4748 4749
}

4750
/**
4751
 * lpfc_get_starget_port_name - Set the target port name
4752 4753 4754 4755
 * @starget: kernel scsi target pointer.
 *
 * Description:  set the target port name to the ndlp port name wwn or zero.
 **/
已提交
4756 4757 4758
static void
lpfc_get_starget_port_name(struct scsi_target *starget)
{
4759
	struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
已提交
4760

4761 4762
	fc_starget_port_name(starget) =
		ndlp ? wwn_to_u64(ndlp->nlp_portname.u.wwn) : 0;
已提交
4763 4764
}

4765
/**
4766
 * lpfc_set_rport_loss_tmo - Set the rport dev loss tmo
4767 4768 4769 4770 4771 4772 4773
 * @rport: fc rport address.
 * @timeout: new value for dev loss tmo.
 *
 * Description:
 * If timeout is non zero set the dev_loss_tmo to timeout, else set
 * dev_loss_tmo to one.
 **/
已提交
4774 4775 4776 4777
static void
lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
{
	if (timeout)
4778
		rport->dev_loss_tmo = timeout;
已提交
4779
	else
4780
		rport->dev_loss_tmo = 1;
已提交
4781 4782
}

4783
/**
4784
 * lpfc_rport_show_function - Return rport target information
4785 4786 4787 4788 4789 4790 4791 4792 4793 4794
 *
 * Description:
 * Macro that uses field to generate a function with the name lpfc_show_rport_
 *
 * lpfc_show_rport_##field: returns the bytes formatted in buf
 * @cdev: class converted to an fc_rport.
 * @buf: on return contains the target_field or zero.
 *
 * Returns: size of formatted string.
 **/
已提交
4795 4796
#define lpfc_rport_show_function(field, format_string, sz, cast)	\
static ssize_t								\
4797 4798 4799
lpfc_show_rport_##field (struct device *dev,				\
			 struct device_attribute *attr,			\
			 char *buf)					\
已提交
4800
{									\
4801
	struct fc_rport *rport = transport_class_to_rport(dev);		\
已提交
4802 4803 4804 4805 4806 4807 4808 4809 4810
	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)

4811
/**
4812
 * lpfc_set_vport_symbolic_name - Set the vport's symbolic name
4813 4814 4815 4816 4817
 * @fc_vport: The fc_vport who's symbolic name has been changed.
 *
 * Description:
 * This function is called by the transport after the @fc_vport's symbolic name
 * has been changed. This function re-registers the symbolic name with the
L
Lucas De Marchi 已提交
4818
 * switch to propagate the change into the fabric if the vport is active.
4819 4820 4821 4822 4823 4824 4825 4826 4827
 **/
static void
lpfc_set_vport_symbolic_name(struct fc_vport *fc_vport)
{
	struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data;

	if (vport->port_state == LPFC_VPORT_READY)
		lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0);
}
已提交
4828

4829 4830 4831 4832 4833 4834
/**
 * lpfc_hba_log_verbose_init - Set hba's log verbose level
 * @phba: Pointer to lpfc_hba struct.
 *
 * This function is called by the lpfc_get_cfgparam() routine to set the
 * module lpfc_log_verbose into the @phba cfg_log_verbose for use with
4835
 * log message according to the module's lpfc_log_verbose parameter setting
4836 4837 4838 4839 4840 4841 4842 4843
 * before hba port or vport created.
 **/
static void
lpfc_hba_log_verbose_init(struct lpfc_hba *phba, uint32_t verbose)
{
	phba->cfg_log_verbose = verbose;
}

已提交
4844 4845 4846 4847 4848 4849 4850 4851
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_supported_speeds = 1,
	.show_host_maxframe_size = 1,
4852
	.show_host_symbolic_name = 1,
已提交
4853 4854 4855 4856 4857 4858 4859 4860 4861 4862 4863 4864 4865 4866 4867 4868 4869 4870 4871 4872 4873 4874 4875 4876 4877 4878

	/* 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,
4879
	.reset_fc_host_stats = lpfc_reset_stats,
已提交
4880 4881 4882 4883 4884 4885 4886 4887 4888 4889 4890 4891 4892 4893 4894 4895

	.dd_fcrport_size = sizeof(struct lpfc_rport_data),
	.show_rport_maxframe_size = 1,
	.show_rport_supported_classes = 1,

	.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,
4896 4897

	.issue_fc_host_lip = lpfc_issue_lip,
4898 4899
	.dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk,
	.terminate_rport_io = lpfc_terminate_rport_io,
4900 4901

	.dd_fcvport_size = sizeof(struct lpfc_vport *),
4902 4903 4904 4905

	.vport_disable = lpfc_vport_disable,

	.set_vport_symbolic_name = lpfc_set_vport_symbolic_name,
4906 4907 4908

	.bsg_request = lpfc_bsg_request,
	.bsg_timeout = lpfc_bsg_timeout,
4909 4910
};

4911 4912 4913 4914 4915 4916 4917 4918
struct fc_function_template lpfc_vport_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_supported_speeds = 1,
	.show_host_maxframe_size = 1,
4919
	.show_host_symbolic_name = 1,
4920 4921 4922 4923 4924 4925 4926 4927 4928 4929 4930 4931 4932 4933 4934 4935 4936 4937 4938 4939 4940 4941 4942 4943 4944 4945 4946 4947 4948 4949 4950 4951 4952 4953 4954 4955 4956 4957 4958 4959 4960 4961 4962 4963 4964 4965 4966 4967

	/* 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,

	.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,

	.dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk,
	.terminate_rport_io = lpfc_terminate_rport_io,

	.vport_disable = lpfc_vport_disable,
4968 4969

	.set_vport_symbolic_name = lpfc_set_vport_symbolic_name,
4970 4971
};

4972
/**
4973
 * lpfc_get_cfgparam - Used during probe_one to init the adapter structure
4974 4975
 * @phba: lpfc_hba pointer.
 **/
已提交
4976 4977 4978
void
lpfc_get_cfgparam(struct lpfc_hba *phba)
{
4979 4980
	lpfc_cr_delay_init(phba, lpfc_cr_delay);
	lpfc_cr_count_init(phba, lpfc_cr_count);
4981
	lpfc_multi_ring_support_init(phba, lpfc_multi_ring_support);
4982 4983
	lpfc_multi_ring_rctl_init(phba, lpfc_multi_ring_rctl);
	lpfc_multi_ring_type_init(phba, lpfc_multi_ring_type);
4984 4985 4986
	lpfc_ack0_init(phba, lpfc_ack0);
	lpfc_topology_init(phba, lpfc_topology);
	lpfc_link_speed_init(phba, lpfc_link_speed);
4987
	lpfc_poll_tmo_init(phba, lpfc_poll_tmo);
4988
	lpfc_enable_npiv_init(phba, lpfc_enable_npiv);
4989
	lpfc_enable_rrq_init(phba, lpfc_enable_rrq);
4990
	lpfc_use_msi_init(phba, lpfc_use_msi);
4991 4992 4993
	lpfc_fcp_imax_init(phba, lpfc_fcp_imax);
	lpfc_fcp_wq_count_init(phba, lpfc_fcp_wq_count);
	lpfc_fcp_eq_count_init(phba, lpfc_fcp_eq_count);
4994 4995
	lpfc_enable_hba_reset_init(phba, lpfc_enable_hba_reset);
	lpfc_enable_hba_heartbeat_init(phba, lpfc_enable_hba_heartbeat);
4996
	lpfc_enable_bg_init(phba, lpfc_enable_bg);
4997 4998 4999
	if (phba->sli_rev == LPFC_SLI_REV4)
		phba->cfg_poll = 0;
	else
5000
	phba->cfg_poll = lpfc_poll;
5001
	phba->cfg_soft_wwnn = 0L;
5002
	phba->cfg_soft_wwpn = 0L;
5003
	lpfc_sg_seg_cnt_init(phba, lpfc_sg_seg_cnt);
5004
	lpfc_prot_sg_seg_cnt_init(phba, lpfc_prot_sg_seg_cnt);
5005
	lpfc_hba_queue_depth_init(phba, lpfc_hba_queue_depth);
5006
	lpfc_hba_log_verbose_init(phba, lpfc_log_verbose);
J
James Smart 已提交
5007
	lpfc_aer_support_init(phba, lpfc_aer_support);
5008
	lpfc_sriov_nr_virtfn_init(phba, lpfc_sriov_nr_virtfn);
5009
	lpfc_suppress_link_up_init(phba, lpfc_suppress_link_up);
5010
	lpfc_iocb_cnt_init(phba, lpfc_iocb_cnt);
5011
	phba->cfg_enable_dss = 1;
5012 5013
	return;
}
5014

5015
/**
5016
 * lpfc_get_vport_cfgparam - Used during port create, init the vport structure
5017 5018
 * @vport: lpfc_vport pointer.
 **/
5019 5020 5021
void
lpfc_get_vport_cfgparam(struct lpfc_vport *vport)
{
5022
	lpfc_log_verbose_init(vport, lpfc_log_verbose);
5023
	lpfc_lun_queue_depth_init(vport, lpfc_lun_queue_depth);
5024
	lpfc_tgt_queue_depth_init(vport, lpfc_tgt_queue_depth);
5025 5026 5027 5028 5029 5030
	lpfc_devloss_tmo_init(vport, lpfc_devloss_tmo);
	lpfc_nodev_tmo_init(vport, lpfc_nodev_tmo);
	lpfc_peer_port_login_init(vport, lpfc_peer_port_login);
	lpfc_restrict_login_init(vport, lpfc_restrict_login);
	lpfc_fcp_class_init(vport, lpfc_fcp_class);
	lpfc_use_adisc_init(vport, lpfc_use_adisc);
5031
	lpfc_max_scsicmpl_time_init(vport, lpfc_max_scsicmpl_time);
5032 5033 5034 5035
	lpfc_fdmi_on_init(vport, lpfc_fdmi_on);
	lpfc_discovery_threads_init(vport, lpfc_discovery_threads);
	lpfc_max_luns_init(vport, lpfc_max_luns);
	lpfc_scan_down_init(vport, lpfc_scan_down);
J
James Smart 已提交
5036
	lpfc_enable_da_id_init(vport, lpfc_enable_da_id);
已提交
5037 5038
	return;
}