lpfc_attr.c 139.2 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;

J
James Smart 已提交
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
673 674 675 676 677 678 679 680 681 682 683 684 685 686
 * @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.
 *
 * Returns:
 * lpfc_do_offline() return code if not zero
 * -EIO reset not configured or error posting the event
 * zero for success
 **/
687 688 689 690 691
static int
lpfc_selective_reset(struct lpfc_hba *phba)
{
	struct completion online_compl;
	int status = 0;
692
	int rc;
693

694 695 696
	if (!phba->cfg_enable_hba_reset)
		return -EIO;

697 698 699 700 701
	status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);

	if (status != 0)
		return status;

702
	init_completion(&online_compl);
703
	rc = lpfc_workq_post_event(phba, &status, &online_compl,
704
			      LPFC_EVT_ONLINE);
705 706 707
	if (rc == 0)
		return -ENOMEM;

708 709 710 711 712 713 714 715
	wait_for_completion(&online_compl);

	if (status != 0)
		return -EIO;

	return 0;
}

716
/**
717
 * lpfc_issue_reset - Selectively resets an adapter
718 719 720 721 722 723 724 725 726 727 728 729
 * @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
730
 * is returned which indicates success
731 732 733 734 735 736
 *
 * 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
**/
737
static ssize_t
738 739
lpfc_issue_reset(struct device *dev, struct device_attribute *attr,
		 const char *buf, size_t count)
740
{
741
	struct Scsi_Host  *shost = class_to_shost(dev);
J
James Smart 已提交
742 743 744
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;

745 746 747 748 749 750 751 752 753 754 755
	int status = -EINVAL;

	if (strncmp(buf, "selective", sizeof("selective") - 1) == 0)
		status = lpfc_selective_reset(phba);

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

756
/**
757
 * lpfc_nport_evt_cnt_show - Return the number of nport events
758 759 760 761 762 763
 * @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
764
static ssize_t
765 766
lpfc_nport_evt_cnt_show(struct device *dev, struct device_attribute *attr,
			char *buf)
已提交
767
{
768
	struct Scsi_Host  *shost = class_to_shost(dev);
J
James Smart 已提交
769 770 771
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;

已提交
772 773 774
	return snprintf(buf, PAGE_SIZE, "%d\n", phba->nport_event_cnt);
}

775
/**
776
 * lpfc_board_mode_show - Return the state of the board
777 778 779 780 781 782
 * @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.
 **/
783
static ssize_t
784 785
lpfc_board_mode_show(struct device *dev, struct device_attribute *attr,
		     char *buf)
786
{
787
	struct Scsi_Host  *shost = class_to_shost(dev);
J
James Smart 已提交
788 789
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
790 791
	char  * state;

J
James Smart 已提交
792
	if (phba->link_state == LPFC_HBA_ERROR)
793
		state = "error";
J
James Smart 已提交
794
	else if (phba->link_state == LPFC_WARM_START)
795
		state = "warm start";
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796
	else if (phba->link_state == LPFC_INIT_START)
797 798 799 800 801 802 803
		state = "offline";
	else
		state = "online";

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

804
/**
805
 * lpfc_board_mode_store - Puts the hba in online, offline, warm or error state
806 807 808 809 810 811 812 813 814 815 816
 * @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
 **/
817
static ssize_t
818 819
lpfc_board_mode_store(struct device *dev, struct device_attribute *attr,
		      const char *buf, size_t count)
820
{
821
	struct Scsi_Host  *shost = class_to_shost(dev);
J
James Smart 已提交
822 823
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
824 825
	struct completion online_compl;
	int status=0;
826
	int rc;
827

828 829
	if (!phba->cfg_enable_hba_reset)
		return -EACCES;
830 831
	init_completion(&online_compl);

832
	if(strncmp(buf, "online", sizeof("online") - 1) == 0) {
833
		rc = lpfc_workq_post_event(phba, &status, &online_compl,
834
				      LPFC_EVT_ONLINE);
835 836
		if (rc == 0)
			return -ENOMEM;
837 838 839
		wait_for_completion(&online_compl);
	} else if (strncmp(buf, "offline", sizeof("offline") - 1) == 0)
		status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
840
	else if (strncmp(buf, "warm", sizeof("warm") - 1) == 0)
841 842 843 844
		if (phba->sli_rev == LPFC_SLI_REV4)
			return -EINVAL;
		else
			status = lpfc_do_offline(phba, LPFC_EVT_WARM_START);
845
	else if (strncmp(buf, "error", sizeof("error") - 1) == 0)
846 847 848 849
		if (phba->sli_rev == LPFC_SLI_REV4)
			return -EINVAL;
		else
			status = lpfc_do_offline(phba, LPFC_EVT_KILL);
850 851 852 853 854 855 856 857 858
	else
		return -EINVAL;

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

859
/**
860
 * lpfc_get_hba_info - Return various bits of informaton about the adapter
861
 * @phba: pointer to the adapter structure.
862 863 864 865 866 867
 * @mxri: max xri count.
 * @axri: available xri count.
 * @mrpi: max rpi count.
 * @arpi: available rpi count.
 * @mvpi: max vpi count.
 * @avpi: available vpi count.
868 869 870 871 872 873 874 875 876
 *
 * 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
877
static int
J
James Smart 已提交
878 879 880 881
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)
882
{
883
	struct lpfc_mbx_read_config *rd_config;
884 885 886
	LPFC_MBOXQ_t *pmboxq;
	MAILBOX_t *pmb;
	int rc = 0;
887
	uint32_t max_vpi;
888 889 890 891 892 893 894

	/*
	 * prevent udev from issuing mailbox commands until the port is
	 * configured.
	 */
	if (phba->link_state < LPFC_LINK_DOWN ||
	    !phba->mbox_mem_pool ||
895
	    (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0)
896 897 898 899 900 901 902 903 904 905
		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));

906
	pmb = &pmboxq->u.mb;
907 908 909 910
	pmb->mbxCommand = MBX_READ_CONFIG;
	pmb->mbxOwner = OWN_HOST;
	pmboxq->context1 = NULL;

911
	if (phba->pport->fc_flag & FC_OFFLINE_MODE)
912 913 914 915 916
		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
917
		if (rc != MBX_TIMEOUT)
918 919 920 921
			mempool_free(pmboxq, phba->mbox_mem_pool);
		return 0;
	}

922 923 924 925 926 927 928 929 930 931 932 933
	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;
934 935 936 937 938 939 940

		/* 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;

941
		if (mvpi)
942
			*mvpi = max_vpi;
943
		if (avpi)
944
			*avpi = max_vpi - phba->sli4_hba.max_cfg_param.vpi_used;
945 946 947 948 949 950 951 952 953 954 955 956 957 958
	} 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;
	}
959 960 961 962 963

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

964
/**
965
 * lpfc_max_rpi_show - Return maximum rpi
966 967 968 969 970 971 972 973 974 975 976 977
 * @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.
 **/
978
static ssize_t
979 980
lpfc_max_rpi_show(struct device *dev, struct device_attribute *attr,
		  char *buf)
981
{
982
	struct Scsi_Host  *shost = class_to_shost(dev);
983 984 985 986
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
	uint32_t cnt;

J
James Smart 已提交
987
	if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, NULL, NULL, NULL))
988 989 990 991
		return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
	return snprintf(buf, PAGE_SIZE, "Unknown\n");
}

992
/**
993
 * lpfc_used_rpi_show - Return maximum rpi minus available rpi
994 995 996 997 998 999 1000 1001 1002 1003 1004 1005
 * @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.
 **/
1006
static ssize_t
1007 1008
lpfc_used_rpi_show(struct device *dev, struct device_attribute *attr,
		   char *buf)
1009
{
1010
	struct Scsi_Host  *shost = class_to_shost(dev);
1011 1012 1013 1014
	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
1015
	if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, &acnt, NULL, NULL))
1016 1017 1018 1019
		return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
	return snprintf(buf, PAGE_SIZE, "Unknown\n");
}

1020
/**
1021
 * lpfc_max_xri_show - Return maximum xri
1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033
 * @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.
 **/
1034
static ssize_t
1035 1036
lpfc_max_xri_show(struct device *dev, struct device_attribute *attr,
		  char *buf)
1037
{
1038
	struct Scsi_Host  *shost = class_to_shost(dev);
1039 1040 1041 1042
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
	uint32_t cnt;

J
James Smart 已提交
1043
	if (lpfc_get_hba_info(phba, &cnt, NULL, NULL, NULL, NULL, NULL))
1044 1045 1046 1047
		return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
	return snprintf(buf, PAGE_SIZE, "Unknown\n");
}

1048
/**
1049
 * lpfc_used_xri_show - Return maximum xpi minus the available xpi
1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061
 * @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.
 **/
1062
static ssize_t
1063 1064
lpfc_used_xri_show(struct device *dev, struct device_attribute *attr,
		   char *buf)
1065
{
1066
	struct Scsi_Host  *shost = class_to_shost(dev);
1067 1068 1069 1070
	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
1071 1072 1073 1074 1075
	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");
}

1076
/**
1077
 * lpfc_max_vpi_show - Return maximum vpi
1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089
 * @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
1090
static ssize_t
1091 1092
lpfc_max_vpi_show(struct device *dev, struct device_attribute *attr,
		  char *buf)
J
James Smart 已提交
1093
{
1094
	struct Scsi_Host  *shost = class_to_shost(dev);
J
James Smart 已提交
1095 1096 1097 1098 1099 1100 1101 1102 1103
	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");
}

1104
/**
1105
 * lpfc_used_vpi_show - Return maximum vpi minus the available vpi
1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117
 * @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
1118
static ssize_t
1119 1120
lpfc_used_vpi_show(struct device *dev, struct device_attribute *attr,
		   char *buf)
J
James Smart 已提交
1121
{
1122
	struct Scsi_Host  *shost = class_to_shost(dev);
J
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1123 1124 1125 1126 1127
	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))
1128 1129 1130 1131
		return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
	return snprintf(buf, PAGE_SIZE, "Unknown\n");
}

1132
/**
1133
 * lpfc_npiv_info_show - Return text about NPIV support for the adapter
1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144
 * @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.
 **/
1145
static ssize_t
1146 1147
lpfc_npiv_info_show(struct device *dev, struct device_attribute *attr,
		    char *buf)
1148
{
1149
	struct Scsi_Host  *shost = class_to_shost(dev);
1150 1151 1152 1153 1154 1155 1156 1157 1158 1159
	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);
}

1160
/**
1161
 * lpfc_poll_show - Return text about poll support for the adapter
1162 1163 1164 1165 1166 1167 1168 1169 1170
 * @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.
 **/
1171
static ssize_t
1172 1173
lpfc_poll_show(struct device *dev, struct device_attribute *attr,
	       char *buf)
1174
{
1175
	struct Scsi_Host  *shost = class_to_shost(dev);
J
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1176 1177
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
1178 1179 1180 1181

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

1182
/**
1183
 * lpfc_poll_store - Set the value of cfg_poll for the adapter
1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195
 * @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
 **/
1196
static ssize_t
1197 1198
lpfc_poll_store(struct device *dev, struct device_attribute *attr,
		const char *buf, size_t count)
1199
{
1200
	struct Scsi_Host  *shost = class_to_shost(dev);
J
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1201 1202
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215
	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;

1216 1217 1218
	if (phba->sli_rev == LPFC_SLI_REV4)
		val = 0;

J
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1219
	spin_lock_irq(&phba->hbalock);
1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233

	old_val = phba->cfg_poll;

	if (val & ENABLE_FCP_RING_POLLING) {
		if ((val & DISABLE_FCP_RING_INT) &&
		    !(old_val & DISABLE_FCP_RING_INT)) {
			creg_val = readl(phba->HCregaddr);
			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
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1234
		spin_unlock_irq(&phba->hbalock);
1235 1236 1237 1238 1239 1240
		return -EINVAL;
	}

	if (!(val & DISABLE_FCP_RING_INT) &&
	    (old_val & DISABLE_FCP_RING_INT))
	{
J
James Smart 已提交
1241
		spin_unlock_irq(&phba->hbalock);
1242
		del_timer(&phba->fcp_poll_timer);
J
James Smart 已提交
1243
		spin_lock_irq(&phba->hbalock);
1244 1245 1246 1247 1248 1249 1250 1251
		creg_val = readl(phba->HCregaddr);
		creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
		writel(creg_val, phba->HCregaddr);
		readl(phba->HCregaddr); /* flush */
	}

	phba->cfg_poll = val;

J
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1252
	spin_unlock_irq(&phba->hbalock);
1253 1254 1255

	return strlen(buf);
}
已提交
1256

1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294
/**
 * 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);
}

1295
/**
1296
 * lpfc_param_show - Return a cfg attribute value in decimal
1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308
 *
 * 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
1309 1310
#define lpfc_param_show(attr)	\
static ssize_t \
1311 1312
lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
		   char *buf) \
已提交
1313
{ \
1314
	struct Scsi_Host  *shost = class_to_shost(dev);\
J
James Smart 已提交
1315 1316
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
	struct lpfc_hba   *phba = vport->phba;\
1317
	uint val = 0;\
1318 1319 1320 1321 1322
	val = phba->cfg_##attr;\
	return snprintf(buf, PAGE_SIZE, "%d\n",\
			phba->cfg_##attr);\
}

1323
/**
1324
 * lpfc_param_hex_show - Return a cfg attribute value in hex
1325 1326 1327 1328 1329 1330 1331 1332
 *
 * 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.
1333
 * @buf: on return contains the attribute value in hexadecimal.
1334 1335 1336
 *
 * Returns: size of formatted string.
 **/
1337 1338
#define lpfc_param_hex_show(attr)	\
static ssize_t \
1339 1340
lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
		   char *buf) \
1341
{ \
1342
	struct Scsi_Host  *shost = class_to_shost(dev);\
J
James Smart 已提交
1343 1344
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
	struct lpfc_hba   *phba = vport->phba;\
1345
	uint val = 0;\
1346 1347 1348 1349 1350
	val = phba->cfg_##attr;\
	return snprintf(buf, PAGE_SIZE, "%#x\n",\
			phba->cfg_##attr);\
}

1351
/**
1352
 * lpfc_param_init - Initializes a cfg attribute
1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369
 *
 * 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
 **/
1370 1371
#define lpfc_param_init(attr, default, minval, maxval)	\
static int \
1372
lpfc_##attr##_init(struct lpfc_hba *phba, uint val) \
1373 1374 1375 1376
{ \
	if (val >= minval && val <= maxval) {\
		phba->cfg_##attr = val;\
		return 0;\
已提交
1377
	}\
1378
	lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
1379 1380
			"0449 lpfc_"#attr" attribute cannot be set to %d, "\
			"allowed range is ["#minval", "#maxval"]\n", val); \
1381 1382
	phba->cfg_##attr = default;\
	return -EINVAL;\
已提交
1383 1384
}

1385
/**
1386
 * lpfc_param_set - Set a cfg attribute value
1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404
 *
 * 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
 **/
1405 1406
#define lpfc_param_set(attr, default, minval, maxval)	\
static int \
1407
lpfc_##attr##_set(struct lpfc_hba *phba, uint val) \
1408 1409 1410 1411 1412 1413
{ \
	if (val >= minval && val <= maxval) {\
		phba->cfg_##attr = val;\
		return 0;\
	}\
	lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
1414 1415
			"0450 lpfc_"#attr" attribute cannot be set to %d, "\
			"allowed range is ["#minval", "#maxval"]\n", val); \
1416 1417 1418
	return -EINVAL;\
}

1419
/**
1420
 * lpfc_param_store - Set a vport attribute value
1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439
 *
 * 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.
 **/
1440
#define lpfc_param_store(attr)	\
已提交
1441
static ssize_t \
1442 1443
lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \
		    const char *buf, size_t count) \
已提交
1444
{ \
1445
	struct Scsi_Host  *shost = class_to_shost(dev);\
J
James Smart 已提交
1446 1447
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
	struct lpfc_hba   *phba = vport->phba;\
1448
	uint val = 0;\
1449 1450 1451 1452
	if (!isdigit(buf[0]))\
		return -EINVAL;\
	if (sscanf(buf, "%i", &val) != 1)\
		return -EINVAL;\
1453
	if (lpfc_##attr##_set(phba, val) == 0) \
1454
		return strlen(buf);\
1455 1456
	else \
		return -EINVAL;\
已提交
1457 1458
}

1459
/**
1460
 * lpfc_vport_param_show - Return decimal formatted cfg attribute value
1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472
 *
 * 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.
 **/
1473 1474
#define lpfc_vport_param_show(attr)	\
static ssize_t \
1475 1476
lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
		   char *buf) \
1477
{ \
1478
	struct Scsi_Host  *shost = class_to_shost(dev);\
1479
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1480
	uint val = 0;\
1481 1482 1483 1484
	val = vport->cfg_##attr;\
	return snprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_##attr);\
}

1485
/**
1486
 * lpfc_vport_param_hex_show - Return hex formatted attribute value
1487 1488 1489 1490 1491 1492
 *
 * Description:
 * Macro that given an attr e.g.
 * hba_queue_depth expands into a function with the name
 * lpfc_hba_queue_depth_show
 *
1493
 * lpfc_##attr##_show: prints the attribute value in hexadecimal.
1494 1495
 * @dev: class device that is converted into a Scsi_host.
 * @attr: device attribute, not used.
1496
 * @buf: on return contains the attribute value in hexadecimal.
1497 1498 1499
 *
 * Returns: length of formatted string.
 **/
1500 1501
#define lpfc_vport_param_hex_show(attr)	\
static ssize_t \
1502 1503
lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
		   char *buf) \
1504
{ \
1505
	struct Scsi_Host  *shost = class_to_shost(dev);\
1506
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1507
	uint val = 0;\
1508 1509 1510 1511
	val = vport->cfg_##attr;\
	return snprintf(buf, PAGE_SIZE, "%#x\n", vport->cfg_##attr);\
}

1512
/**
1513
 * lpfc_vport_param_init - Initialize a vport cfg attribute
1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529
 *
 * 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
 **/
1530 1531
#define lpfc_vport_param_init(attr, default, minval, maxval)	\
static int \
1532
lpfc_##attr##_init(struct lpfc_vport *vport, uint val) \
1533 1534 1535 1536 1537
{ \
	if (val >= minval && val <= maxval) {\
		vport->cfg_##attr = val;\
		return 0;\
	}\
1538
	lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
1539
			 "0423 lpfc_"#attr" attribute cannot be set to %d, "\
1540
			 "allowed range is ["#minval", "#maxval"]\n", val); \
1541 1542 1543 1544
	vport->cfg_##attr = default;\
	return -EINVAL;\
}

1545
/**
1546
 * lpfc_vport_param_set - Set a vport cfg attribute
1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561
 *
 * 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
 **/
1562 1563
#define lpfc_vport_param_set(attr, default, minval, maxval)	\
static int \
1564
lpfc_##attr##_set(struct lpfc_vport *vport, uint val) \
1565 1566 1567 1568 1569
{ \
	if (val >= minval && val <= maxval) {\
		vport->cfg_##attr = val;\
		return 0;\
	}\
1570
	lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
1571
			 "0424 lpfc_"#attr" attribute cannot be set to %d, "\
1572
			 "allowed range is ["#minval", "#maxval"]\n", val); \
1573 1574 1575
	return -EINVAL;\
}

1576
/**
1577
 * lpfc_vport_param_store - Set a vport attribute
1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592
 *
 * 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.
 **/
1593 1594
#define lpfc_vport_param_store(attr)	\
static ssize_t \
1595 1596
lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \
		    const char *buf, size_t count) \
1597
{ \
1598
	struct Scsi_Host  *shost = class_to_shost(dev);\
1599
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1600
	uint val = 0;\
1601 1602 1603 1604 1605 1606 1607 1608 1609 1610 1611
	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;\
}


1612
#define LPFC_ATTR(name, defval, minval, maxval, desc) \
1613 1614
static uint lpfc_##name = defval;\
module_param(lpfc_##name, uint, 0);\
已提交
1615
MODULE_PARM_DESC(lpfc_##name, desc);\
1616
lpfc_param_init(name, defval, minval, maxval)
已提交
1617 1618

#define LPFC_ATTR_R(name, defval, minval, maxval, desc) \
1619 1620
static uint lpfc_##name = defval;\
module_param(lpfc_##name, uint, 0);\
已提交
1621 1622
MODULE_PARM_DESC(lpfc_##name, desc);\
lpfc_param_show(name)\
1623
lpfc_param_init(name, defval, minval, maxval)\
1624
static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
已提交
1625 1626

#define LPFC_ATTR_RW(name, defval, minval, maxval, desc) \
1627 1628
static uint lpfc_##name = defval;\
module_param(lpfc_##name, uint, 0);\
已提交
1629 1630
MODULE_PARM_DESC(lpfc_##name, desc);\
lpfc_param_show(name)\
1631 1632 1633
lpfc_param_init(name, defval, minval, maxval)\
lpfc_param_set(name, defval, minval, maxval)\
lpfc_param_store(name)\
1634 1635
static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
		   lpfc_##name##_show, lpfc_##name##_store)
已提交
1636

1637
#define LPFC_ATTR_HEX_R(name, defval, minval, maxval, desc) \
1638 1639
static uint lpfc_##name = defval;\
module_param(lpfc_##name, uint, 0);\
1640 1641 1642
MODULE_PARM_DESC(lpfc_##name, desc);\
lpfc_param_hex_show(name)\
lpfc_param_init(name, defval, minval, maxval)\
1643
static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
1644 1645

#define LPFC_ATTR_HEX_RW(name, defval, minval, maxval, desc) \
1646 1647
static uint lpfc_##name = defval;\
module_param(lpfc_##name, uint, 0);\
1648 1649 1650 1651 1652
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)\
1653 1654
static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
		   lpfc_##name##_show, lpfc_##name##_store)
1655

1656
#define LPFC_VPORT_ATTR(name, defval, minval, maxval, desc) \
1657 1658
static uint lpfc_##name = defval;\
module_param(lpfc_##name, uint, 0);\
1659 1660 1661 1662
MODULE_PARM_DESC(lpfc_##name, desc);\
lpfc_vport_param_init(name, defval, minval, maxval)

#define LPFC_VPORT_ATTR_R(name, defval, minval, maxval, desc) \
1663 1664
static uint lpfc_##name = defval;\
module_param(lpfc_##name, uint, 0);\
1665 1666 1667
MODULE_PARM_DESC(lpfc_##name, desc);\
lpfc_vport_param_show(name)\
lpfc_vport_param_init(name, defval, minval, maxval)\
1668
static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
1669 1670

#define LPFC_VPORT_ATTR_RW(name, defval, minval, maxval, desc) \
1671 1672
static uint lpfc_##name = defval;\
module_param(lpfc_##name, uint, 0);\
1673 1674 1675 1676 1677
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)\
1678 1679
static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
		   lpfc_##name##_show, lpfc_##name##_store)
1680 1681

#define LPFC_VPORT_ATTR_HEX_R(name, defval, minval, maxval, desc) \
1682 1683
static uint lpfc_##name = defval;\
module_param(lpfc_##name, uint, 0);\
1684 1685 1686
MODULE_PARM_DESC(lpfc_##name, desc);\
lpfc_vport_param_hex_show(name)\
lpfc_vport_param_init(name, defval, minval, maxval)\
1687
static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
1688 1689

#define LPFC_VPORT_ATTR_HEX_RW(name, defval, minval, maxval, desc) \
1690 1691
static uint lpfc_##name = defval;\
module_param(lpfc_##name, uint, 0);\
1692 1693 1694 1695 1696
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)\
1697 1698 1699
static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
		   lpfc_##name##_show, lpfc_##name##_store)

1700 1701 1702 1703
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);
1704 1705 1706 1707 1708 1709 1710 1711
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);
1712 1713
static DEVICE_ATTR(link_state, S_IRUGO | S_IWUSR, lpfc_link_state_show,
		lpfc_link_state_store);
1714 1715 1716 1717
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);
1718
static DEVICE_ATTR(menlo_mgmt_mode, S_IRUGO, lpfc_mlomgmt_show, NULL);
1719 1720
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);
1721
static DEVICE_ATTR(lpfc_enable_fip, S_IRUGO, lpfc_enable_fip_show, NULL);
1722 1723 1724 1725 1726 1727 1728 1729 1730 1731 1732
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);
1733 1734
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);
已提交
1735

1736

1737
static char *lpfc_soft_wwn_key = "C99G71SL8032A";
1738

1739
/**
1740
 * lpfc_soft_wwn_enable_store - Allows setting of the wwn if the key is valid
1741 1742 1743 1744 1745 1746 1747 1748 1749
 * @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
 **/
1750
static ssize_t
1751 1752
lpfc_soft_wwn_enable_store(struct device *dev, struct device_attribute *attr,
			   const char *buf, size_t count)
1753
{
1754
	struct Scsi_Host  *shost = class_to_shost(dev);
J
James Smart 已提交
1755 1756
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
1757 1758 1759 1760 1761 1762 1763 1764 1765 1766 1767 1768 1769 1770 1771 1772 1773 1774 1775
	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--;

1776 1777
	if ((cnt != strlen(lpfc_soft_wwn_key)) ||
	    (strncmp(buf, lpfc_soft_wwn_key, strlen(lpfc_soft_wwn_key)) != 0))
1778 1779
		return -EINVAL;

1780
	phba->soft_wwn_enable = 1;
1781 1782
	return count;
}
1783 1784
static DEVICE_ATTR(lpfc_soft_wwn_enable, S_IWUSR, NULL,
		   lpfc_soft_wwn_enable_store);
1785

1786
/**
1787
 * lpfc_soft_wwpn_show - Return the cfg soft ww port name of the adapter
1788 1789
 * @dev: class device that is converted into a Scsi_host.
 * @attr: device attribute, not used.
1790
 * @buf: on return contains the wwpn in hexadecimal.
1791 1792 1793
 *
 * Returns: size of formatted string.
 **/
1794
static ssize_t
1795 1796
lpfc_soft_wwpn_show(struct device *dev, struct device_attribute *attr,
		    char *buf)
1797
{
1798
	struct Scsi_Host  *shost = class_to_shost(dev);
J
James Smart 已提交
1799 1800 1801
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;

1802 1803
	return snprintf(buf, PAGE_SIZE, "0x%llx\n",
			(unsigned long long)phba->cfg_soft_wwpn);
1804 1805
}

1806
/**
1807
 * lpfc_soft_wwpn_store - Set the ww port name of the adapter
1808 1809
 * @dev class device that is converted into a Scsi_host.
 * @attr: device attribute, not used.
1810
 * @buf: contains the wwpn in hexadecimal.
1811 1812 1813 1814 1815 1816 1817 1818
 * @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
 **/
1819
static ssize_t
1820 1821
lpfc_soft_wwpn_store(struct device *dev, struct device_attribute *attr,
		     const char *buf, size_t count)
1822
{
1823
	struct Scsi_Host  *shost = class_to_shost(dev);
J
James Smart 已提交
1824 1825
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
1826 1827 1828 1829
	struct completion online_compl;
	int stat1=0, stat2=0;
	unsigned int i, j, cnt=count;
	u8 wwpn[8];
1830
	int rc;
1831

1832 1833
	if (!phba->cfg_enable_hba_reset)
		return -EACCES;
1834 1835 1836
	spin_lock_irq(&phba->hbalock);
	if (phba->over_temp_state == HBA_OVER_TEMP) {
		spin_unlock_irq(&phba->hbalock);
1837
		return -EACCES;
1838 1839
	}
	spin_unlock_irq(&phba->hbalock);
1840 1841 1842 1843
	/* count may include a LF at end of string */
	if (buf[cnt-1] == '\n')
		cnt--;

1844
	if (!phba->soft_wwn_enable || (cnt < 16) || (cnt > 18) ||
1845 1846 1847 1848
	    ((cnt == 17) && (*buf++ != 'x')) ||
	    ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x'))))
		return -EINVAL;

1849
	phba->soft_wwn_enable = 0;
1850 1851 1852 1853 1854

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

	/* Validate and store the new name */
	for (i=0, j=0; i < 16; i++) {
1855 1856 1857 1858 1859
		int value;

		value = hex_to_bin(*buf++);
		if (value >= 0)
			j = (j << 4) | value;
1860 1861 1862 1863 1864 1865 1866 1867
		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
1868
	fc_host_port_name(shost) = phba->cfg_soft_wwpn;
1869
	if (phba->cfg_soft_wwnn)
J
James Smart 已提交
1870
		fc_host_node_name(shost) = phba->cfg_soft_wwnn;
1871 1872 1873 1874

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

1875
	stat1 = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
1876 1877
	if (stat1)
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1878 1879
				"0463 lpfc_soft_wwpn attribute set failed to "
				"reinit adapter - %d\n", stat1);
1880
	init_completion(&online_compl);
1881 1882 1883 1884 1885
	rc = lpfc_workq_post_event(phba, &stat2, &online_compl,
				   LPFC_EVT_ONLINE);
	if (rc == 0)
		return -ENOMEM;

1886 1887 1888
	wait_for_completion(&online_compl);
	if (stat2)
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1889 1890
				"0464 lpfc_soft_wwpn attribute set failed to "
				"reinit adapter - %d\n", stat2);
1891 1892
	return (stat1 || stat2) ? -EIO : count;
}
1893 1894
static DEVICE_ATTR(lpfc_soft_wwpn, S_IRUGO | S_IWUSR,\
		   lpfc_soft_wwpn_show, lpfc_soft_wwpn_store);
1895

1896
/**
1897
 * lpfc_soft_wwnn_show - Return the cfg soft ww node name for the adapter
1898 1899
 * @dev: class device that is converted into a Scsi_host.
 * @attr: device attribute, not used.
1900
 * @buf: on return contains the wwnn in hexadecimal.
1901 1902 1903
 *
 * Returns: size of formatted string.
 **/
1904
static ssize_t
1905 1906
lpfc_soft_wwnn_show(struct device *dev, struct device_attribute *attr,
		    char *buf)
1907
{
1908
	struct Scsi_Host *shost = class_to_shost(dev);
1909
	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
1910 1911 1912 1913
	return snprintf(buf, PAGE_SIZE, "0x%llx\n",
			(unsigned long long)phba->cfg_soft_wwnn);
}

1914
/**
1915
 * lpfc_soft_wwnn_store - sets the ww node name of the adapter
1916
 * @cdev: class device that is converted into a Scsi_host.
1917
 * @buf: contains the ww node name in hexadecimal.
1918 1919 1920 1921 1922 1923
 * @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
 **/
1924
static ssize_t
1925 1926
lpfc_soft_wwnn_store(struct device *dev, struct device_attribute *attr,
		     const char *buf, size_t count)
1927
{
1928
	struct Scsi_Host *shost = class_to_shost(dev);
1929
	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
1930 1931 1932 1933 1934 1935 1936 1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950
	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++) {
1951 1952 1953 1954 1955
		int value;

		value = hex_to_bin(*buf++);
		if (value >= 0)
			j = (j << 4) | value;
1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970
		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;
}
1971 1972
static DEVICE_ATTR(lpfc_soft_wwnn, S_IRUGO | S_IWUSR,\
		   lpfc_soft_wwnn_show, lpfc_soft_wwnn_store);
1973

1974

1975 1976 1977 1978 1979 1980 1981
static int lpfc_poll = 0;
module_param(lpfc_poll, int, 0);
MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:"
		 " 0 - none,"
		 " 1 - poll with interrupts enabled"
		 " 3 - poll and disable FCP ring interrupts");

1982 1983
static DEVICE_ATTR(lpfc_poll, S_IRUGO | S_IWUSR,
		   lpfc_poll_show, lpfc_poll_store);
已提交
1984

1985 1986 1987 1988 1989 1990 1991
int  lpfc_sli_mode = 0;
module_param(lpfc_sli_mode, int, 0);
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");

1992
int lpfc_enable_npiv = 1;
J
James Smart 已提交
1993 1994 1995
module_param(lpfc_enable_npiv, int, 0);
MODULE_PARM_DESC(lpfc_enable_npiv, "Enable NPIV functionality");
lpfc_param_show(enable_npiv);
J
James Smart 已提交
1996
lpfc_param_init(enable_npiv, 1, 0, 1);
1997
static DEVICE_ATTR(lpfc_enable_npiv, S_IRUGO, lpfc_enable_npiv_show, NULL);
1998

1999 2000 2001 2002 2003 2004 2005
int lpfc_enable_rrq;
module_param(lpfc_enable_rrq, int, 0);
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);

2006 2007 2008 2009 2010 2011 2012
/*
# 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.
*/
2013 2014 2015
LPFC_ATTR_R(suppress_link_up, LPFC_INITIALIZE_LINK, LPFC_INITIALIZE_LINK,
		LPFC_DELAY_INIT_LINK_INDEFINITELY,
		"Suppress Link Up at initialization");
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 2046 2047 2048 2049 2050 2051 2052 2053 2054 2055 2056 2057 2058 2059 2060 2061 2062 2063 2064 2065 2066 2067 2068
/*
# 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;
module_param(lpfc_iocb_cnt, int, 1);
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);
2069

2070 2071 2072 2073 2074 2075 2076 2077 2078 2079
/*
# 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");
2080 2081

/**
2082
 * lpfc_nodev_tmo_show - Return the hba dev loss timeout value
2083 2084 2085 2086 2087 2088
 * @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.
 **/
2089
static ssize_t
2090 2091
lpfc_nodev_tmo_show(struct device *dev, struct device_attribute *attr,
		    char *buf)
2092
{
2093
	struct Scsi_Host  *shost = class_to_shost(dev);
J
James Smart 已提交
2094
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2095

2096
	return snprintf(buf, PAGE_SIZE, "%d\n",	vport->cfg_devloss_tmo);
2097 2098
}

2099
/**
2100
 * lpfc_nodev_tmo_init - Set the hba nodev timeout value
2101 2102 2103 2104 2105 2106 2107 2108 2109 2110 2111 2112 2113
 * @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
 **/
2114
static int
2115 2116 2117 2118 2119
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)
2120
			lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2121
					 "0407 Ignoring nodev_tmo module "
2122 2123
					 "parameter because devloss_tmo is "
					 "set.\n");
2124 2125 2126 2127
		return 0;
	}

	if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
2128 2129
		vport->cfg_nodev_tmo = val;
		vport->cfg_devloss_tmo = val;
2130 2131
		return 0;
	}
2132 2133 2134 2135
	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);
2136
	vport->cfg_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
2137 2138 2139
	return -EINVAL;
}

2140
/**
2141
 * lpfc_update_rport_devloss_tmo - Update dev loss tmo value
2142 2143 2144 2145 2146
 * @vport: lpfc vport structure pointer.
 *
 * Description:
 * Update all the ndlp's dev loss tmo with the vport devloss tmo value.
 **/
2147
static void
2148
lpfc_update_rport_devloss_tmo(struct lpfc_vport *vport)
2149
{
J
James Smart 已提交
2150
	struct Scsi_Host  *shost;
2151 2152
	struct lpfc_nodelist  *ndlp;

2153 2154 2155
	shost = lpfc_shost_from_vport(vport);
	spin_lock_irq(shost->host_lock);
	list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp)
2156
		if (NLP_CHK_NODE_ACT(ndlp) && ndlp->rport)
2157 2158
			ndlp->rport->dev_loss_tmo = vport->cfg_devloss_tmo;
	spin_unlock_irq(shost->host_lock);
2159 2160
}

2161
/**
2162
 * lpfc_nodev_tmo_set - Set the vport nodev tmo and devloss tmo values
2163 2164 2165 2166 2167 2168 2169 2170 2171 2172 2173 2174 2175
 * @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
 **/
2176
static int
2177
lpfc_nodev_tmo_set(struct lpfc_vport *vport, int val)
2178
{
2179 2180
	if (vport->dev_loss_tmo_changed ||
	    (lpfc_devloss_tmo != LPFC_DEF_DEVLOSS_TMO)) {
2181 2182 2183
		lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
				 "0401 Ignoring change to nodev_tmo "
				 "because devloss_tmo is set.\n");
2184 2185 2186
		return 0;
	}
	if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
2187 2188
		vport->cfg_nodev_tmo = val;
		vport->cfg_devloss_tmo = val;
2189 2190 2191 2192 2193
		/*
		 * 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;
2194
		lpfc_update_rport_devloss_tmo(vport);
2195 2196
		return 0;
	}
2197 2198 2199 2200
	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);
2201 2202 2203
	return -EINVAL;
}

2204
lpfc_vport_param_store(nodev_tmo)
2205

2206 2207
static DEVICE_ATTR(lpfc_nodev_tmo, S_IRUGO | S_IWUSR,
		   lpfc_nodev_tmo_show, lpfc_nodev_tmo_store);
2208 2209 2210 2211 2212 2213 2214 2215 2216 2217

/*
# 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.
*/
module_param(lpfc_devloss_tmo, int, 0);
MODULE_PARM_DESC(lpfc_devloss_tmo,
		 "Seconds driver will hold I/O waiting "
		 "for a device to come back");
2218 2219 2220
lpfc_vport_param_init(devloss_tmo, LPFC_DEF_DEVLOSS_TMO,
		      LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO)
lpfc_vport_param_show(devloss_tmo)
2221 2222

/**
2223
 * lpfc_devloss_tmo_set - Sets vport nodev tmo, devloss tmo values, changed bit
2224 2225 2226 2227 2228 2229 2230 2231 2232 2233 2234 2235
 * @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
 **/
2236
static int
2237
lpfc_devloss_tmo_set(struct lpfc_vport *vport, int val)
2238 2239
{
	if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
2240 2241 2242
		vport->cfg_nodev_tmo = val;
		vport->cfg_devloss_tmo = val;
		vport->dev_loss_tmo_changed = 1;
2243
		fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val;
2244
		lpfc_update_rport_devloss_tmo(vport);
2245 2246 2247
		return 0;
	}

2248 2249 2250 2251
	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);
2252 2253 2254
	return -EINVAL;
}

2255
lpfc_vport_param_store(devloss_tmo)
2256 2257
static DEVICE_ATTR(lpfc_devloss_tmo, S_IRUGO | S_IWUSR,
		   lpfc_devloss_tmo_show, lpfc_devloss_tmo_store);
2258

已提交
2259 2260 2261 2262
/*
# 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:
2263
# See lpfc_logmsh.h for definitions.
已提交
2264
*/
2265
LPFC_VPORT_ATTR_HEX_RW(log_verbose, 0x0, 0x0, 0xffffffff,
2266
		       "Verbose logging bit-mask");
已提交
2267

J
James Smart 已提交
2268 2269 2270 2271 2272 2273 2274
/*
# 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
2275 2276 2277 2278
/*
# 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.
*/
2279 2280
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
2281

2282 2283 2284 2285 2286 2287 2288
/*
# 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");

2289 2290 2291 2292 2293 2294 2295 2296 2297 2298
/*
# 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");

2299 2300 2301 2302 2303 2304 2305 2306 2307
/*
# 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.
*/
2308 2309 2310
LPFC_VPORT_ATTR_R(peer_port_login, 0, 0, 1,
		  "Allow peer ports on the same physical port to login to each "
		  "other.");
2311 2312

/*
2313
# restrict_login:  This parameter allows/prevents logins
2314 2315 2316 2317 2318 2319 2320 2321 2322
# 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.
*/
2323 2324 2325 2326 2327 2328
static int lpfc_restrict_login = 1;
module_param(lpfc_restrict_login, int, 0);
MODULE_PARM_DESC(lpfc_restrict_login,
		 "Restrict virtual ports login to remote initiators.");
lpfc_vport_param_show(restrict_login);

2329
/**
2330
 * lpfc_restrict_login_init - Set the vport restrict login flag
2331 2332 2333 2334 2335 2336 2337 2338 2339 2340 2341 2342 2343
 * @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
 **/
2344 2345 2346 2347
static int
lpfc_restrict_login_init(struct lpfc_vport *vport, int val)
{
	if (val < 0 || val > 1) {
2348
		lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2349
				 "0422 lpfc_restrict_login attribute cannot "
2350 2351
				 "be set to %d, allowed range is [0, 1]\n",
				 val);
2352 2353 2354 2355 2356 2357 2358 2359 2360 2361 2362
		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;
}

2363
/**
2364
 * lpfc_restrict_login_set - Set the vport restrict login flag
2365 2366 2367 2368 2369 2370 2371 2372 2373 2374 2375 2376 2377 2378
 * @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
 **/
2379 2380 2381 2382
static int
lpfc_restrict_login_set(struct lpfc_vport *vport, int val)
{
	if (val < 0 || val > 1) {
2383
		lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2384
				 "0425 lpfc_restrict_login attribute cannot "
2385 2386
				 "be set to %d, allowed range is [0, 1]\n",
				 val);
2387 2388 2389 2390
		vport->cfg_restrict_login = 1;
		return -EINVAL;
	}
	if (vport->port_type == LPFC_PHYSICAL_PORT && val != 0) {
2391 2392 2393
		lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
				 "0468 lpfc_restrict_login must be 0 for "
				 "Physical ports.\n");
2394 2395 2396 2397 2398 2399 2400
		vport->cfg_restrict_login = 0;
		return 0;
	}
	vport->cfg_restrict_login = val;
	return 0;
}
lpfc_vport_param_store(restrict_login);
2401 2402
static DEVICE_ATTR(lpfc_restrict_login, S_IRUGO | S_IWUSR,
		   lpfc_restrict_login_show, lpfc_restrict_login_store);
2403

已提交
2404 2405 2406 2407 2408 2409 2410 2411 2412 2413 2414 2415 2416 2417 2418 2419 2420
/*
# 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.)
*/
2421 2422
LPFC_VPORT_ATTR_R(scan_down, 1, 0, 1,
		  "Start scanning for devices from highest ALPA to lowest");
已提交
2423 2424 2425 2426

/*
# lpfc_topology:  link topology for init link
#            0x0  = attempt loop mode then point-to-point
2427
#            0x01 = internal loopback mode
已提交
2428 2429 2430 2431 2432 2433 2434
#            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.
*/
2435 2436

/**
2437
 * lpfc_topology_set - Set the adapters topology field
2438 2439 2440 2441 2442 2443 2444 2445 2446 2447 2448 2449 2450 2451
 * @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
 **/
2452 2453 2454
static ssize_t
lpfc_topology_store(struct device *dev, struct device_attribute *attr,
			const char *buf, size_t count)
2455
{
2456 2457 2458 2459 2460 2461
	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;
2462 2463
	int err;
	uint32_t prev_val;
2464 2465 2466 2467 2468 2469 2470 2471 2472 2473 2474

	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;

2475 2476 2477
	if (val >= 0 && val <= 6) {
		prev_val = phba->cfg_topology;
		phba->cfg_topology = val;
2478 2479 2480
		if (nolip)
			return strlen(buf);

2481
		err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport));
2482
		if (err) {
2483
			phba->cfg_topology = prev_val;
2484 2485 2486
			return -EINVAL;
		} else
			return strlen(buf);
2487 2488 2489 2490 2491 2492 2493 2494 2495 2496 2497 2498
	}
	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;
module_param(lpfc_topology, int, 0);
MODULE_PARM_DESC(lpfc_topology, "Select Fibre Channel topology");
lpfc_param_show(topology)
lpfc_param_init(topology, 0, 0, 6)
2499
static DEVICE_ATTR(lpfc_topology, S_IRUGO | S_IWUSR,
2500
		lpfc_topology_show, lpfc_topology_store);
已提交
2501

2502 2503 2504 2505 2506 2507 2508 2509 2510 2511 2512 2513 2514 2515 2516 2517 2518 2519 2520 2521 2522 2523 2524 2525 2526 2527 2528 2529 2530 2531
/**
 * 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);
2532 2533

/**
2534
 * lpfc_stat_data_ctrl_store - write call back for lpfc_stat_data_ctrl sysfs file
2535 2536 2537 2538 2539 2540 2541 2542 2543 2544 2545 2546 2547 2548 2549 2550 2551 2552 2553 2554 2555 2556 2557 2558 2559 2560 2561 2562 2563 2564 2565 2566 2567 2568
 * @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"))) {
2569
		if (strlen(buf) > (LPFC_MAX_DATA_CTRL_LEN - 1))
2570 2571 2572 2573 2574 2575 2576 2577 2578 2579 2580 2581 2582 2583 2584 2585 2586 2587 2588 2589 2590 2591 2592 2593 2594 2595 2596 2597 2598 2599 2600 2601 2602 2603 2604 2605 2606
			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;

2607
		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2608 2609 2610 2611 2612 2613 2614 2615 2616 2617 2618 2619 2620 2621
			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;

2622
		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2623 2624 2625 2626 2627 2628 2629 2630 2631 2632 2633 2634 2635 2636 2637 2638
			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;

2639
		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2640 2641 2642 2643 2644 2645 2646 2647 2648 2649 2650 2651 2652 2653 2654 2655 2656 2657 2658 2659 2660 2661 2662 2663 2664 2665 2666 2667 2668 2669 2670 2671 2672 2673 2674 2675 2676 2677 2678 2679 2680 2681 2682 2683 2684 2685 2686 2687 2688 2689 2690 2691 2692 2693 2694 2695 2696 2697
			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;
}


/**
2698
 * lpfc_stat_data_ctrl_show - Read function for lpfc_stat_data_ctrl sysfs file
2699 2700 2701 2702 2703 2704 2705 2706 2707 2708 2709 2710 2711 2712 2713 2714 2715 2716 2717 2718 2719 2720 2721 2722 2723 2724 2725 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 2760 2761 2762 2763 2764 2765 2766 2767 2768 2769 2770 2771 2772 2773 2774
 * @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)


/**
2775
 * sysfs_drvr_stat_data_read - Read function for lpfc_drvr_stat_data attribute
2776
 * @filp: sysfs file
2777 2778 2779 2780 2781 2782 2783 2784 2785 2786 2787
 * @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
2788 2789
sysfs_drvr_stat_data_read(struct file *filp, struct kobject *kobj,
		struct bin_attribute *bin_attr,
2790 2791 2792 2793 2794 2795 2796 2797 2798 2799 2800 2801 2802 2803 2804 2805 2806 2807 2808 2809 2810 2811 2812 2813 2814 2815 2816 2817 2818 2819 2820 2821 2822 2823 2824 2825 2826 2827 2828 2829 2830 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
		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
2859 2860 2861
/*
# lpfc_link_speed: Link speed selection for initializing the Fibre Channel
# connection.
2862
# Value range is [0,16]. Default value is 0.
已提交
2863
*/
2864
/**
2865
 * lpfc_link_speed_set - Set the adapters link speed
2866 2867 2868 2869 2870 2871 2872 2873 2874 2875 2876 2877 2878 2879 2880
 * @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
 **/
2881 2882 2883
static ssize_t
lpfc_link_speed_store(struct device *dev, struct device_attribute *attr,
		const char *buf, size_t count)
2884
{
2885 2886 2887
	struct Scsi_Host  *shost = class_to_shost(dev);
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
2888
	int val = LPFC_USER_LINK_SPEED_AUTO;
2889 2890
	int nolip = 0;
	const char *val_buf = buf;
2891 2892 2893
	int err;
	uint32_t prev_val;

2894 2895 2896 2897 2898 2899 2900 2901 2902 2903
	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;

2904 2905 2906 2907 2908 2909 2910 2911 2912 2913
	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);
2914
		return -EINVAL;
2915 2916 2917
	}
	if ((val >= 0) && (val <= LPFC_USER_LINK_SPEED_MAX) &&
	    (LPFC_USER_LINK_SPEED_BITMAP & (1 << val))) {
2918 2919
		prev_val = phba->cfg_link_speed;
		phba->cfg_link_speed = val;
2920 2921 2922
		if (nolip)
			return strlen(buf);

2923
		err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport));
2924
		if (err) {
2925
			phba->cfg_link_speed = prev_val;
2926 2927 2928
			return -EINVAL;
		} else
			return strlen(buf);
2929 2930
	}
	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2931 2932
		"0469 lpfc_link_speed attribute cannot be set to %d, "
		"allowed values are ["LPFC_LINK_SPEED_STRING"]\n", val);
2933 2934 2935 2936 2937 2938 2939
	return -EINVAL;
}

static int lpfc_link_speed = 0;
module_param(lpfc_link_speed, int, 0);
MODULE_PARM_DESC(lpfc_link_speed, "Select link speed");
lpfc_param_show(link_speed)
2940 2941

/**
2942
 * lpfc_link_speed_init - Set the adapters link speed
2943 2944 2945 2946 2947 2948 2949 2950 2951 2952 2953 2954 2955 2956
 * @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
 **/
2957 2958 2959
static int
lpfc_link_speed_init(struct lpfc_hba *phba, int val)
{
2960 2961
	if ((val >= 0) && (val <= LPFC_USER_LINK_SPEED_MAX) &&
	    (LPFC_USER_LINK_SPEED_BITMAP & (1 << val))) {
2962 2963 2964 2965
		phba->cfg_link_speed = val;
		return 0;
	}
	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2966
			"0405 lpfc_link_speed attribute cannot "
2967 2968
			"be set to %d, allowed values are "
			"["LPFC_LINK_SPEED_STRING"]\n", val);
2969
	phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
2970 2971 2972
	return -EINVAL;
}

2973
static DEVICE_ATTR(lpfc_link_speed, S_IRUGO | S_IWUSR,
2974
		   lpfc_link_speed_show, lpfc_link_speed_store);
已提交
2975

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James Smart 已提交
2976 2977 2978 2979 2980 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
/*
# 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.
 * @buf: containing the string "selective".
 * @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
J
James Smart 已提交
3035 3036
				rc = -EPERM;
		} else {
J
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3037
			phba->cfg_aer_support = 0;
J
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3038 3039
			rc = strlen(buf);
		}
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3040 3041 3042 3043 3044 3045 3046 3047 3048 3049 3050
		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
J
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3051 3052
				 rc = -EPERM;
		} else {
J
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3053
			phba->cfg_aer_support = 1;
J
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3054 3055
			rc = strlen(buf);
		}
J
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3056 3057 3058 3059 3060 3061 3062 3063 3064 3065 3066 3067 3068 3069 3070 3071 3072 3073 3074 3075 3076 3077 3078 3079 3080 3081 3082 3083 3084 3085 3086 3087 3088 3089 3090 3091 3092 3093 3094 3095 3096 3097 3098
		break;
	default:
		rc = -EINVAL;
		break;
	}
	return rc;
}

static int lpfc_aer_support = 1;
module_param(lpfc_aer_support, int, 1);
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.
 * @val: link speed value.
 *
 * 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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3099
	/* By default, try to enable AER on a device */
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3100 3101 3102 3103 3104 3105 3106 3107 3108 3109 3110 3111 3112 3113 3114 3115 3116 3117 3118 3119 3120 3121 3122 3123 3124 3125 3126 3127 3128 3129 3130 3131 3132 3133 3134 3135 3136 3137 3138
	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.
 * @buf: containing the string "selective".
 * @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;
J
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3139 3140
	if (val != 1)
		return -EINVAL;
J
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3141

J
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3142
	if (phba->hba_flag & HBA_AER_ENABLED)
J
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3143 3144 3145 3146 3147
		rc = pci_cleanup_aer_uncorrect_error_status(phba->pcidev);

	if (rc == 0)
		return strlen(buf);
	else
J
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3148
		return -EPERM;
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}

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

已提交
3154 3155 3156 3157
/*
# lpfc_fcp_class:  Determines FC class to use for the FCP protocol.
# Value range is [2,3]. Default value is 3.
*/
3158 3159
LPFC_VPORT_ATTR_R(fcp_class, 3, 2, 3,
		  "Select Fibre Channel class of service for FCP sequences");
已提交
3160 3161 3162 3163 3164

/*
# lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range
# is [0,1]. Default value is 0.
*/
3165 3166
LPFC_VPORT_ATTR_RW(use_adisc, 0, 0, 1,
		   "Use ADISC on rediscovery to authenticate FCP devices");
已提交
3167

3168 3169 3170 3171 3172 3173 3174 3175 3176 3177 3178 3179 3180 3181 3182 3183 3184 3185 3186 3187 3188 3189 3190 3191 3192 3193 3194 3195 3196 3197 3198 3199
/*
# 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;
module_param(lpfc_max_scsicmpl_time, int, 0);
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;
3200
		ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth;
3201 3202 3203 3204 3205 3206 3207 3208 3209
	}
	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
3210 3211 3212 3213 3214 3215 3216 3217 3218
/*
# 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
3219
# value [0,63]. cr_count can take value [1,255]. Default value of cr_delay
已提交
3220 3221 3222
# is 0. Default value of cr_count is 1. The cr_count feature is disabled if
# cr_delay is set to 0.
*/
3223
LPFC_ATTR_RW(cr_delay, 0, 0, 63, "A count of milliseconds after which an "
已提交
3224 3225
		"interrupt response is generated");

3226
LPFC_ATTR_RW(cr_count, 1, 1, 255, "A count of I/O completions after which an "
已提交
3227 3228
		"interrupt response is generated");

3229 3230 3231 3232 3233 3234 3235 3236
/*
# 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");

3237 3238 3239 3240 3241
/*
# 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).
*/
3242
LPFC_ATTR_R(multi_ring_rctl, FC_RCTL_DD_UNSOL_DATA, 1,
3243 3244 3245 3246 3247 3248 3249
	     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).
*/
3250
LPFC_ATTR_R(multi_ring_type, FC_TYPE_IP, 1,
3251 3252
	     255, "Identifies TYPE for additional ring configuration");

已提交
3253 3254 3255 3256 3257 3258 3259
/*
# 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.
*/
3260
LPFC_VPORT_ATTR_RW(fdmi_on, 0, 0, 2, "Enable FDMI support");
已提交
3261 3262 3263 3264 3265

/*
# Specifies the maximum number of ELS cmds we can have outstanding (for
# discovery). Value range is [1,64]. Default value = 32.
*/
3266
LPFC_VPORT_ATTR(discovery_threads, 32, 1, 64, "Maximum number of ELS commands "
已提交
3267 3268 3269
		 "during discovery");

/*
J
James Smart 已提交
3270 3271 3272
# 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
3273
*/
3274
LPFC_VPORT_ATTR_R(max_luns, 255, 0, 65535, "Maximum allowed LUN");
已提交
3275

3276 3277 3278 3279 3280 3281 3282
/*
# 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");

3283 3284 3285
/*
# lpfc_use_msi: Use MSI (Message Signaled Interrupts) in systems that
#		support this feature
3286
#       0  = MSI disabled
3287
#       1  = MSI enabled
3288 3289
#       2  = MSI-X enabled (default)
# Value range is [0,2]. Default value is 2.
3290
*/
3291
LPFC_ATTR_R(use_msi, 2, 0, 2, "Use Message Signaled Interrupts (1) or "
3292
	    "MSI-X (2), if possible");
3293

3294 3295 3296 3297 3298 3299 3300 3301 3302 3303 3304 3305 3306 3307 3308 3309 3310 3311 3312 3313 3314 3315 3316 3317
/*
# 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");

3318 3319 3320 3321 3322 3323 3324
/*
# 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.");
3325

3326
/*
3327
# lpfc_enable_hba_heartbeat: Disable HBA heartbeat timer..
3328 3329 3330 3331
#       0  = HBA Heartbeat disabled
#       1  = HBA Heartbeat enabled (default)
# Value range is [0,1]. Default value is 1.
*/
3332
LPFC_ATTR_R(enable_hba_heartbeat, 0, 0, 1, "Enable HBA Heartbeat.");
3333

3334 3335 3336 3337 3338 3339 3340 3341 3342 3343 3344 3345 3346 3347 3348 3349 3350
/*
# 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.
#
*/
3351
unsigned int lpfc_prot_mask = SHOST_DIF_TYPE1_PROTECTION;
3352 3353 3354 3355 3356 3357 3358 3359 3360 3361 3362 3363 3364 3365 3366 3367

module_param(lpfc_prot_mask, uint, 0);
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;
module_param(lpfc_prot_guard, byte, 0);
MODULE_PARM_DESC(lpfc_prot_guard, "host protection guard type");

3368 3369 3370 3371 3372 3373 3374 3375 3376 3377 3378 3379 3380 3381 3382 3383 3384 3385 3386
/*
 * 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;
module_param(lpfc_delay_discovery, int, 0);
MODULE_PARM_DESC(lpfc_delay_discovery,
	"Delay NPort discovery when Clean Address bit is cleared. "
	"Allowed values: 0,1.");
3387

3388
/*
3389
 * lpfc_sg_seg_cnt - Initial Maximum DMA Segment Count
3390 3391 3392 3393 3394 3395 3396
 * 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");

3397 3398 3399 3400
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");

3401
struct device_attribute *lpfc_hba_attrs[] = {
3402 3403 3404 3405
	&dev_attr_bg_info,
	&dev_attr_bg_guard_err,
	&dev_attr_bg_apptag_err,
	&dev_attr_bg_reftag_err,
3406 3407 3408 3409 3410 3411 3412 3413 3414
	&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,
3415
	&dev_attr_link_state,
3416
	&dev_attr_num_discovered_ports,
3417
	&dev_attr_menlo_mgmt_mode,
3418
	&dev_attr_lpfc_drvr_version,
3419
	&dev_attr_lpfc_enable_fip,
3420 3421 3422
	&dev_attr_lpfc_temp_sensor,
	&dev_attr_lpfc_log_verbose,
	&dev_attr_lpfc_lun_queue_depth,
3423
	&dev_attr_lpfc_tgt_queue_depth,
3424 3425 3426 3427 3428 3429 3430 3431 3432 3433 3434 3435 3436 3437 3438 3439 3440 3441
	&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,
3442
	&dev_attr_lpfc_enable_rrq,
3443 3444 3445 3446 3447 3448 3449 3450 3451 3452 3453 3454 3455
	&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,
3456 3457 3458
	&dev_attr_lpfc_fcp_imax,
	&dev_attr_lpfc_fcp_wq_count,
	&dev_attr_lpfc_fcp_eq_count,
3459
	&dev_attr_lpfc_enable_bg,
3460 3461 3462 3463 3464 3465
	&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,
3466
	&dev_attr_lpfc_max_scsicmpl_time,
3467
	&dev_attr_lpfc_stat_data_ctrl,
3468
	&dev_attr_lpfc_prot_sg_seg_cnt,
J
James Smart 已提交
3469 3470
	&dev_attr_lpfc_aer_support,
	&dev_attr_lpfc_aer_state_cleanup,
3471
	&dev_attr_lpfc_suppress_link_up,
3472 3473 3474 3475
	&dev_attr_lpfc_iocb_cnt,
	&dev_attr_iocb_hw,
	&dev_attr_txq_hw,
	&dev_attr_txcmplq_hw,
3476 3477
	&dev_attr_lpfc_fips_level,
	&dev_attr_lpfc_fips_rev,
已提交
3478 3479 3480
	NULL,
};

3481 3482
struct device_attribute *lpfc_vport_attrs[] = {
	&dev_attr_info,
3483
	&dev_attr_link_state,
3484 3485 3486 3487
	&dev_attr_num_discovered_ports,
	&dev_attr_lpfc_drvr_version,
	&dev_attr_lpfc_log_verbose,
	&dev_attr_lpfc_lun_queue_depth,
3488
	&dev_attr_lpfc_tgt_queue_depth,
3489 3490 3491 3492 3493 3494 3495 3496 3497 3498 3499 3500
	&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,
3501 3502
	&dev_attr_lpfc_max_scsicmpl_time,
	&dev_attr_lpfc_stat_data_ctrl,
3503
	&dev_attr_lpfc_static_vport,
3504 3505
	&dev_attr_lpfc_fips_level,
	&dev_attr_lpfc_fips_rev,
3506 3507 3508
	NULL,
};

3509
/**
3510
 * sysfs_ctlreg_write - Write method for writing to ctlreg
3511
 * @filp: open sysfs file
3512 3513 3514 3515 3516 3517 3518 3519 3520 3521 3522 3523 3524 3525 3526 3527
 * @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
3528
static ssize_t
3529 3530
sysfs_ctlreg_write(struct file *filp, struct kobject *kobj,
		   struct bin_attribute *bin_attr,
3531
		   char *buf, loff_t off, size_t count)
已提交
3532 3533
{
	size_t buf_off;
3534 3535
	struct device *dev = container_of(kobj, struct device, kobj);
	struct Scsi_Host  *shost = class_to_shost(dev);
J
James Smart 已提交
3536 3537
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
已提交
3538

3539 3540 3541
	if (phba->sli_rev >= LPFC_SLI_REV4)
		return -EPERM;

已提交
3542 3543 3544 3545 3546 3547 3548 3549
	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
3550
	if (!(vport->fc_flag & FC_OFFLINE_MODE)) {
已提交
3551 3552 3553
		return -EPERM;
	}

J
James Smart 已提交
3554
	spin_lock_irq(&phba->hbalock);
已提交
3555 3556 3557 3558
	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
3559
	spin_unlock_irq(&phba->hbalock);
已提交
3560 3561 3562 3563

	return count;
}

3564
/**
3565
 * sysfs_ctlreg_read - Read method for reading from ctlreg
3566
 * @filp: open sysfs file
3567 3568
 * @kobj: kernel kobject that contains the kernel class device.
 * @bin_attr: kernel attributes passed to us.
3569
 * @buf: if successful contains the data from the adapter IOREG space.
3570 3571 3572 3573 3574 3575 3576 3577 3578 3579 3580 3581
 * @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
3582
static ssize_t
3583 3584
sysfs_ctlreg_read(struct file *filp, struct kobject *kobj,
		  struct bin_attribute *bin_attr,
3585
		  char *buf, loff_t off, size_t count)
已提交
3586 3587 3588
{
	size_t buf_off;
	uint32_t * tmp_ptr;
3589 3590
	struct device *dev = container_of(kobj, struct device, kobj);
	struct Scsi_Host  *shost = class_to_shost(dev);
J
James Smart 已提交
3591 3592
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
已提交
3593

3594 3595 3596
	if (phba->sli_rev >= LPFC_SLI_REV4)
		return -EPERM;

已提交
3597 3598 3599 3600 3601 3602 3603 3604 3605 3606 3607
	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
3608
	spin_lock_irq(&phba->hbalock);
已提交
3609 3610 3611 3612 3613 3614

	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
3615
	spin_unlock_irq(&phba->hbalock);
已提交
3616 3617 3618 3619 3620 3621 3622 3623 3624 3625 3626 3627 3628 3629

	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,
};

3630
/**
3631
 * sysfs_mbox_idle - frees the sysfs mailbox
3632 3633
 * @phba: lpfc_hba pointer
 **/
已提交
3634
static void
J
James Smart 已提交
3635
sysfs_mbox_idle(struct lpfc_hba *phba)
已提交
3636 3637 3638 3639 3640 3641 3642 3643 3644 3645 3646
{
	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;
	}
}

3647
/**
3648
 * sysfs_mbox_write - Write method for writing information via mbox
3649
 * @filp: open sysfs file
3650 3651 3652 3653 3654 3655 3656 3657 3658 3659 3660 3661 3662 3663 3664 3665 3666 3667 3668
 * @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
3669
static ssize_t
3670 3671
sysfs_mbox_write(struct file *filp, struct kobject *kobj,
		 struct bin_attribute *bin_attr,
3672
		 char *buf, loff_t off, size_t count)
已提交
3673
{
3674 3675
	struct device *dev = container_of(kobj, struct device, kobj);
	struct Scsi_Host  *shost = class_to_shost(dev);
J
James Smart 已提交
3676 3677 3678
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
	struct lpfcMboxq  *mbox = NULL;
已提交
3679 3680 3681 3682 3683 3684 3685 3686 3687 3688 3689 3690 3691 3692

	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
3693
		memset(mbox, 0, sizeof (LPFC_MBOXQ_t));
已提交
3694 3695
	}

J
James Smart 已提交
3696
	spin_lock_irq(&phba->hbalock);
已提交
3697 3698 3699 3700 3701 3702 3703 3704 3705 3706

	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           ||
3707
		    phba->sysfs_mbox.mbox   == NULL) {
已提交
3708
			sysfs_mbox_idle(phba);
J
James Smart 已提交
3709
			spin_unlock_irq(&phba->hbalock);
3710
			return -EAGAIN;
已提交
3711 3712 3713
		}
	}

3714
	memcpy((uint8_t *) &phba->sysfs_mbox.mbox->u.mb + off,
已提交
3715 3716 3717 3718
	       buf, count);

	phba->sysfs_mbox.offset = off + count;

J
James Smart 已提交
3719
	spin_unlock_irq(&phba->hbalock);
已提交
3720 3721 3722 3723

	return count;
}

3724
/**
3725
 * sysfs_mbox_read - Read method for reading information via mbox
3726
 * @filp: open sysfs file
3727 3728 3729 3730 3731 3732 3733 3734 3735 3736 3737 3738 3739 3740 3741 3742 3743 3744 3745 3746 3747
 * @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
3748
static ssize_t
3749 3750
sysfs_mbox_read(struct file *filp, struct kobject *kobj,
		struct bin_attribute *bin_attr,
3751
		char *buf, loff_t off, size_t count)
已提交
3752
{
3753 3754
	struct device *dev = container_of(kobj, struct device, kobj);
	struct Scsi_Host  *shost = class_to_shost(dev);
J
James Smart 已提交
3755 3756
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
已提交
3757
	int rc;
3758
	MAILBOX_t *pmb;
已提交
3759

3760
	if (off > MAILBOX_CMD_SIZE)
已提交
3761 3762
		return -ERANGE;

3763 3764
	if ((count + off) > MAILBOX_CMD_SIZE)
		count = MAILBOX_CMD_SIZE - off;
已提交
3765 3766 3767 3768 3769 3770 3771

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

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

J
James Smart 已提交
3772
	spin_lock_irq(&phba->hbalock);
已提交
3773

3774 3775 3776
	if (phba->over_temp_state == HBA_OVER_TEMP) {
		sysfs_mbox_idle(phba);
		spin_unlock_irq(&phba->hbalock);
3777
		return  -EACCES;
3778 3779
	}

已提交
3780 3781 3782
	if (off == 0 &&
	    phba->sysfs_mbox.state  == SMBOX_WRITING &&
	    phba->sysfs_mbox.offset >= 2 * sizeof(uint32_t)) {
3783 3784
		pmb = &phba->sysfs_mbox.mbox->u.mb;
		switch (pmb->mbxCommand) {
已提交
3785 3786 3787 3788 3789 3790 3791 3792 3793 3794 3795 3796 3797
			/* 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
3798
			if (!(vport->fc_flag & FC_OFFLINE_MODE)) {
已提交
3799 3800
				printk(KERN_WARNING "mbox_read:Command 0x%x "
				       "is illegal in on-line state\n",
3801
				       pmb->mbxCommand);
已提交
3802
				sysfs_mbox_idle(phba);
J
James Smart 已提交
3803
				spin_unlock_irq(&phba->hbalock);
已提交
3804 3805
				return -EPERM;
			}
3806 3807
		case MBX_WRITE_NV:
		case MBX_WRITE_VPARMS:
已提交
3808 3809 3810 3811 3812 3813 3814 3815 3816 3817 3818
		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:
3819
		case MBX_KILL_BOARD:
已提交
3820 3821
		case MBX_LOAD_AREA:
		case MBX_LOAD_EXP_ROM:
3822 3823
		case MBX_BEACON:
		case MBX_DEL_LD_ENTRY:
3824 3825
		case MBX_SET_VARIABLE:
		case MBX_WRITE_WWN:
3826 3827
		case MBX_PORT_CAPABILITIES:
		case MBX_PORT_IOV_CONTROL:
已提交
3828
			break;
3829 3830
		case MBX_SECURITY_MGMT:
		case MBX_AUTH_PORT:
3831 3832 3833 3834 3835
			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);
3836
				return -EPERM;
3837
			}
3838
			break;
已提交
3839
		case MBX_READ_SPARM64:
3840
		case MBX_READ_TOPOLOGY:
已提交
3841 3842 3843 3844 3845
		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",
3846
			       pmb->mbxCommand);
已提交
3847
			sysfs_mbox_idle(phba);
J
James Smart 已提交
3848
			spin_unlock_irq(&phba->hbalock);
已提交
3849 3850 3851
			return -EPERM;
		default:
			printk(KERN_WARNING "mbox_read: Unknown Command 0x%x\n",
3852
			       pmb->mbxCommand);
已提交
3853
			sysfs_mbox_idle(phba);
J
James Smart 已提交
3854
			spin_unlock_irq(&phba->hbalock);
已提交
3855 3856 3857
			return -EPERM;
		}

3858
		/* If HBA encountered an error attention, allow only DUMP
3859
		 * or RESTART mailbox commands until the HBA is restarted.
3860
		 */
3861
		if (phba->pport->stopped &&
3862 3863 3864 3865
		    pmb->mbxCommand != MBX_DUMP_MEMORY &&
		    pmb->mbxCommand != MBX_RESTART &&
		    pmb->mbxCommand != MBX_WRITE_VPARMS &&
		    pmb->mbxCommand != MBX_WRITE_WWN)
3866 3867 3868
			lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
					"1259 mbox: Issued mailbox cmd "
					"0x%x while in stopped state.\n",
3869
					pmb->mbxCommand);
3870

3871 3872
		phba->sysfs_mbox.mbox->vport = vport;

3873 3874 3875
		/* Don't allow mailbox commands to be sent when blocked
		 * or when in the middle of discovery
		 */
3876
		if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) {
3877
			sysfs_mbox_idle(phba);
J
James Smart 已提交
3878
			spin_unlock_irq(&phba->hbalock);
3879 3880 3881
			return  -EAGAIN;
		}

J
James Smart 已提交
3882
		if ((vport->fc_flag & FC_OFFLINE_MODE) ||
3883
		    (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE))) {
已提交
3884

J
James Smart 已提交
3885
			spin_unlock_irq(&phba->hbalock);
已提交
3886 3887 3888
			rc = lpfc_sli_issue_mbox (phba,
						  phba->sysfs_mbox.mbox,
						  MBX_POLL);
J
James Smart 已提交
3889
			spin_lock_irq(&phba->hbalock);
已提交
3890 3891

		} else {
J
James Smart 已提交
3892
			spin_unlock_irq(&phba->hbalock);
已提交
3893 3894
			rc = lpfc_sli_issue_mbox_wait (phba,
						       phba->sysfs_mbox.mbox,
3895
				lpfc_mbox_tmo_val(phba, pmb->mbxCommand) * HZ);
J
James Smart 已提交
3896
			spin_lock_irq(&phba->hbalock);
已提交
3897 3898 3899
		}

		if (rc != MBX_SUCCESS) {
3900 3901 3902
			if (rc == MBX_TIMEOUT) {
				phba->sysfs_mbox.mbox = NULL;
			}
已提交
3903
			sysfs_mbox_idle(phba);
J
James Smart 已提交
3904
			spin_unlock_irq(&phba->hbalock);
3905
			return  (rc == MBX_TIMEOUT) ? -ETIME : -ENODEV;
已提交
3906 3907 3908 3909 3910 3911 3912
		}
		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
3913
		spin_unlock_irq(&phba->hbalock);
3914
		return -EAGAIN;
已提交
3915 3916
	}

3917
	memcpy(buf, (uint8_t *) &pmb + off, count);
已提交
3918 3919 3920

	phba->sysfs_mbox.offset = off + count;

3921
	if (phba->sysfs_mbox.offset == MAILBOX_CMD_SIZE)
已提交
3922 3923
		sysfs_mbox_idle(phba);

J
James Smart 已提交
3924
	spin_unlock_irq(&phba->hbalock);
已提交
3925 3926 3927 3928 3929 3930 3931 3932 3933

	return count;
}

static struct bin_attribute sysfs_mbox_attr = {
	.attr = {
		.name = "mbox",
		.mode = S_IRUSR | S_IWUSR,
	},
3934
	.size = MAILBOX_CMD_SIZE,
已提交
3935 3936 3937 3938
	.read = sysfs_mbox_read,
	.write = sysfs_mbox_write,
};

3939
/**
3940
 * lpfc_alloc_sysfs_attr - Creates the ctlreg and mbox entries
3941 3942 3943 3944 3945 3946
 * @vport: address of lpfc vport structure.
 *
 * Return codes:
 * zero on success
 * error return code from sysfs_create_bin_file()
 **/
已提交
3947
int
J
James Smart 已提交
3948
lpfc_alloc_sysfs_attr(struct lpfc_vport *vport)
已提交
3949
{
J
James Smart 已提交
3950
	struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
已提交
3951 3952
	int error;

3953
	error = sysfs_create_bin_file(&shost->shost_dev.kobj,
3954 3955 3956 3957
				      &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
3958 3959
		goto out;

3960
	error = sysfs_create_bin_file(&shost->shost_dev.kobj,
3961
				      &sysfs_ctlreg_attr);
已提交
3962
	if (error)
3963
		goto out_remove_stat_attr;
已提交
3964

3965
	error = sysfs_create_bin_file(&shost->shost_dev.kobj,
3966
				      &sysfs_mbox_attr);
3967
	if (error)
3968
		goto out_remove_ctlreg_attr;
3969

已提交
3970 3971
	return 0;
out_remove_ctlreg_attr:
3972
	sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr);
3973 3974 3975
out_remove_stat_attr:
	sysfs_remove_bin_file(&shost->shost_dev.kobj,
			&sysfs_drvr_stat_data_attr);
已提交
3976 3977 3978 3979
out:
	return error;
}

3980
/**
3981
 * lpfc_free_sysfs_attr - Removes the ctlreg and mbox entries
3982 3983
 * @vport: address of lpfc vport structure.
 **/
已提交
3984
void
J
James Smart 已提交
3985
lpfc_free_sysfs_attr(struct lpfc_vport *vport)
已提交
3986
{
J
James Smart 已提交
3987
	struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3988 3989
	sysfs_remove_bin_file(&shost->shost_dev.kobj,
		&sysfs_drvr_stat_data_attr);
3990 3991 3992
	/* Virtual ports do not need ctrl_reg and mbox */
	if (vport->port_type == LPFC_NPIV_PORT)
		return;
3993 3994
	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
3995 3996 3997 3998 3999 4000 4001
}


/*
 * Dynamic FC Host Attributes Support
 */

4002
/**
4003
 * lpfc_get_host_port_id - Copy the vport DID into the scsi host port id
4004 4005
 * @shost: kernel scsi host pointer.
 **/
已提交
4006 4007 4008
static void
lpfc_get_host_port_id(struct Scsi_Host *shost)
{
J
James Smart 已提交
4009 4010
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;

已提交
4011
	/* note: fc_myDID already in cpu endianness */
J
James Smart 已提交
4012
	fc_host_port_id(shost) = vport->fc_myDID;
已提交
4013 4014
}

4015
/**
4016
 * lpfc_get_host_port_type - Set the value of the scsi host port type
4017 4018
 * @shost: kernel scsi host pointer.
 **/
已提交
4019 4020 4021
static void
lpfc_get_host_port_type(struct Scsi_Host *shost)
{
J
James Smart 已提交
4022 4023
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
已提交
4024 4025 4026

	spin_lock_irq(shost->host_lock);

4027 4028 4029
	if (vport->port_type == LPFC_NPIV_PORT) {
		fc_host_port_type(shost) = FC_PORTTYPE_NPIV;
	} else if (lpfc_is_link_up(phba)) {
4030
		if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
J
James Smart 已提交
4031
			if (vport->fc_flag & FC_PUBLIC_LOOP)
已提交
4032 4033 4034 4035
				fc_host_port_type(shost) = FC_PORTTYPE_NLPORT;
			else
				fc_host_port_type(shost) = FC_PORTTYPE_LPORT;
		} else {
J
James Smart 已提交
4036
			if (vport->fc_flag & FC_FABRIC)
已提交
4037 4038 4039 4040 4041 4042 4043 4044 4045 4046
				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);
}

4047
/**
4048
 * lpfc_get_host_port_state - Set the value of the scsi host port state
4049 4050
 * @shost: kernel scsi host pointer.
 **/
已提交
4051 4052 4053
static void
lpfc_get_host_port_state(struct Scsi_Host *shost)
{
J
James Smart 已提交
4054 4055
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
已提交
4056 4057 4058

	spin_lock_irq(shost->host_lock);

J
James Smart 已提交
4059
	if (vport->fc_flag & FC_OFFLINE_MODE)
已提交
4060 4061
		fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE;
	else {
J
James Smart 已提交
4062 4063
		switch (phba->link_state) {
		case LPFC_LINK_UNKNOWN:
已提交
4064 4065 4066 4067 4068 4069 4070 4071 4072 4073 4074 4075 4076 4077 4078 4079 4080 4081 4082 4083 4084
		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);
}

4085
/**
4086
 * lpfc_get_host_speed - Set the value of the scsi host speed
4087 4088
 * @shost: kernel scsi host pointer.
 **/
已提交
4089 4090 4091
static void
lpfc_get_host_speed(struct Scsi_Host *shost)
{
J
James Smart 已提交
4092 4093
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
已提交
4094 4095 4096

	spin_lock_irq(shost->host_lock);

J
James Smart 已提交
4097
	if (lpfc_is_link_up(phba)) {
已提交
4098
		switch(phba->fc_linkspeed) {
4099 4100
		case LPFC_LINK_SPEED_1GHZ:
			fc_host_speed(shost) = FC_PORTSPEED_1GBIT;
已提交
4101
			break;
4102 4103
		case LPFC_LINK_SPEED_2GHZ:
			fc_host_speed(shost) = FC_PORTSPEED_2GBIT;
已提交
4104
			break;
4105 4106
		case LPFC_LINK_SPEED_4GHZ:
			fc_host_speed(shost) = FC_PORTSPEED_4GBIT;
已提交
4107
			break;
4108 4109
		case LPFC_LINK_SPEED_8GHZ:
			fc_host_speed(shost) = FC_PORTSPEED_8GBIT;
4110
			break;
4111 4112
		case LPFC_LINK_SPEED_10GHZ:
			fc_host_speed(shost) = FC_PORTSPEED_10GBIT;
4113
			break;
4114 4115 4116 4117 4118
		case LPFC_LINK_SPEED_16GHZ:
			fc_host_speed(shost) = FC_PORTSPEED_16GBIT;
			break;
		default:
			fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
已提交
4119 4120
			break;
		}
4121 4122
	} else
		fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
已提交
4123 4124 4125 4126

	spin_unlock_irq(shost->host_lock);
}

4127
/**
4128
 * lpfc_get_host_fabric_name - Set the value of the scsi host fabric name
4129 4130
 * @shost: kernel scsi host pointer.
 **/
已提交
4131 4132 4133
static void
lpfc_get_host_fabric_name (struct Scsi_Host *shost)
{
J
James Smart 已提交
4134 4135
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
4136
	u64 node_name;
已提交
4137 4138 4139

	spin_lock_irq(shost->host_lock);

J
James Smart 已提交
4140
	if ((vport->fc_flag & FC_FABRIC) ||
4141
	    ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) &&
J
James Smart 已提交
4142
	     (vport->fc_flag & FC_PUBLIC_LOOP)))
A
Andrew Morton 已提交
4143
		node_name = wwn_to_u64(phba->fc_fabparam.nodeName.u.wwn);
已提交
4144 4145
	else
		/* fabric is local port if there is no F/FL_Port */
4146
		node_name = 0;
已提交
4147 4148 4149

	spin_unlock_irq(shost->host_lock);

4150
	fc_host_fabric_name(shost) = node_name;
已提交
4151 4152
}

4153
/**
4154
 * lpfc_get_stats - Return statistical information about the adapter
4155 4156 4157 4158 4159 4160 4161 4162 4163 4164
 * @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
4165 4166 4167
static struct fc_host_statistics *
lpfc_get_stats(struct Scsi_Host *shost)
{
J
James Smart 已提交
4168 4169 4170
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
	struct lpfc_sli   *psli = &phba->sli;
4171
	struct fc_host_statistics *hs = &phba->link_stats;
4172
	struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets;
已提交
4173 4174
	LPFC_MBOXQ_t *pmboxq;
	MAILBOX_t *pmb;
4175
	unsigned long seconds;
4176
	int rc = 0;
已提交
4177

4178 4179 4180 4181
	/*
	 * prevent udev from issuing mailbox commands until the port is
	 * configured.
	 */
J
James Smart 已提交
4182 4183
	if (phba->link_state < LPFC_LINK_DOWN ||
	    !phba->mbox_mem_pool ||
4184
	    (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0)
4185
		return NULL;
J
James Smart 已提交
4186 4187

	if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
4188 4189
		return NULL;

已提交
4190 4191 4192 4193 4194
	pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
	if (!pmboxq)
		return NULL;
	memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));

4195
	pmb = &pmboxq->u.mb;
已提交
4196 4197 4198
	pmb->mbxCommand = MBX_READ_STATUS;
	pmb->mbxOwner = OWN_HOST;
	pmboxq->context1 = NULL;
4199
	pmboxq->vport = vport;
已提交
4200

4201
	if (vport->fc_flag & FC_OFFLINE_MODE)
已提交
4202
		rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
4203
	else
已提交
4204 4205 4206
		rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);

	if (rc != MBX_SUCCESS) {
J
James Smart 已提交
4207
		if (rc != MBX_TIMEOUT)
4208
			mempool_free(pmboxq, phba->mbox_mem_pool);
已提交
4209 4210 4211
		return NULL;
	}

4212 4213
	memset(hs, 0, sizeof (struct fc_host_statistics));

已提交
4214 4215 4216 4217 4218
	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);

4219
	memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
已提交
4220 4221 4222
	pmb->mbxCommand = MBX_READ_LNK_STAT;
	pmb->mbxOwner = OWN_HOST;
	pmboxq->context1 = NULL;
4223
	pmboxq->vport = vport;
已提交
4224

4225
	if (vport->fc_flag & FC_OFFLINE_MODE)
已提交
4226
		rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
4227
	else
已提交
4228 4229 4230
		rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);

	if (rc != MBX_SUCCESS) {
J
James Smart 已提交
4231
		if (rc != MBX_TIMEOUT)
4232
			mempool_free(pmboxq, phba->mbox_mem_pool);
已提交
4233 4234 4235 4236 4237 4238 4239 4240 4241 4242 4243
		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;

4244 4245 4246 4247 4248 4249 4250 4251
	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;

4252
	if (phba->hba_flag & HBA_FCOE_MODE) {
4253 4254 4255
		hs->lip_count = -1;
		hs->nos_count = (phba->link_events >> 1);
		hs->nos_count -= lso->link_events;
4256
	} else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
已提交
4257
		hs->lip_count = (phba->fc_eventTag >> 1);
4258
		hs->lip_count -= lso->link_events;
已提交
4259 4260 4261 4262
		hs->nos_count = -1;
	} else {
		hs->lip_count = -1;
		hs->nos_count = (phba->fc_eventTag >> 1);
4263
		hs->nos_count -= lso->link_events;
已提交
4264 4265 4266 4267
	}

	hs->dumped_frames = -1;

4268 4269 4270 4271 4272 4273
	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
4274

4275 4276
	mempool_free(pmboxq, phba->mbox_mem_pool);

已提交
4277 4278 4279
	return hs;
}

4280
/**
4281
 * lpfc_reset_stats - Copy the adapter link stats information
4282 4283
 * @shost: kernel scsi host pointer.
 **/
4284 4285 4286
static void
lpfc_reset_stats(struct Scsi_Host *shost)
{
J
James Smart 已提交
4287 4288 4289 4290
	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;
4291 4292 4293 4294
	LPFC_MBOXQ_t *pmboxq;
	MAILBOX_t *pmb;
	int rc = 0;

J
James Smart 已提交
4295
	if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
4296 4297
		return;

4298 4299 4300 4301 4302
	pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
	if (!pmboxq)
		return;
	memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));

4303
	pmb = &pmboxq->u.mb;
4304 4305 4306 4307
	pmb->mbxCommand = MBX_READ_STATUS;
	pmb->mbxOwner = OWN_HOST;
	pmb->un.varWords[0] = 0x1; /* reset request */
	pmboxq->context1 = NULL;
4308
	pmboxq->vport = vport;
4309

J
James Smart 已提交
4310
	if ((vport->fc_flag & FC_OFFLINE_MODE) ||
4311
		(!(psli->sli_flag & LPFC_SLI_ACTIVE)))
4312 4313 4314 4315 4316
		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
4317
		if (rc != MBX_TIMEOUT)
4318 4319 4320 4321 4322 4323 4324 4325
			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;
4326
	pmboxq->vport = vport;
4327

J
James Smart 已提交
4328
	if ((vport->fc_flag & FC_OFFLINE_MODE) ||
4329
	    (!(psli->sli_flag & LPFC_SLI_ACTIVE)))
4330 4331 4332 4333 4334
		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
4335
		if (rc != MBX_TIMEOUT)
4336 4337 4338 4339 4340 4341 4342 4343 4344 4345 4346
			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;
4347
	if (phba->hba_flag & HBA_FCOE_MODE)
4348 4349 4350
		lso->link_events = (phba->link_events >> 1);
	else
		lso->link_events = (phba->fc_eventTag >> 1);
4351 4352 4353

	psli->stats_start = get_seconds();

4354 4355
	mempool_free(pmboxq, phba->mbox_mem_pool);

4356 4357
	return;
}
已提交
4358 4359 4360 4361 4362

/*
 * The LPFC driver treats linkdown handling as target loss events so there
 * are no sysfs handlers for link_down_tmo.
 */
4363

4364
/**
4365
 * lpfc_get_node_by_target - Return the nodelist for a target
4366 4367 4368 4369 4370 4371
 * @starget: kernel scsi target pointer.
 *
 * Returns:
 * address of the node list if found
 * NULL target not found
 **/
4372 4373
static struct lpfc_nodelist *
lpfc_get_node_by_target(struct scsi_target *starget)
已提交
4374
{
J
James Smart 已提交
4375 4376
	struct Scsi_Host  *shost = dev_to_shost(starget->dev.parent);
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4377
	struct lpfc_nodelist *ndlp;
已提交
4378 4379

	spin_lock_irq(shost->host_lock);
4380
	/* Search for this, mapped, target ID */
J
James Smart 已提交
4381
	list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
4382 4383
		if (NLP_CHK_NODE_ACT(ndlp) &&
		    ndlp->nlp_state == NLP_STE_MAPPED_NODE &&
4384 4385 4386
		    starget->id == ndlp->nlp_sid) {
			spin_unlock_irq(shost->host_lock);
			return ndlp;
已提交
4387 4388 4389
		}
	}
	spin_unlock_irq(shost->host_lock);
4390 4391
	return NULL;
}
已提交
4392

4393
/**
4394
 * lpfc_get_starget_port_id - Set the target port id to the ndlp DID or -1
4395 4396
 * @starget: kernel scsi target pointer.
 **/
4397 4398 4399 4400 4401 4402
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
4403 4404
}

4405
/**
4406
 * lpfc_get_starget_node_name - Set the target node name
4407 4408 4409 4410
 * @starget: kernel scsi target pointer.
 *
 * Description: Set the target node name to the ndlp node name wwn or zero.
 **/
已提交
4411 4412 4413
static void
lpfc_get_starget_node_name(struct scsi_target *starget)
{
4414
	struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
已提交
4415

4416 4417
	fc_starget_node_name(starget) =
		ndlp ? wwn_to_u64(ndlp->nlp_nodename.u.wwn) : 0;
已提交
4418 4419
}

4420
/**
4421
 * lpfc_get_starget_port_name - Set the target port name
4422 4423 4424 4425
 * @starget: kernel scsi target pointer.
 *
 * Description:  set the target port name to the ndlp port name wwn or zero.
 **/
已提交
4426 4427 4428
static void
lpfc_get_starget_port_name(struct scsi_target *starget)
{
4429
	struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
已提交
4430

4431 4432
	fc_starget_port_name(starget) =
		ndlp ? wwn_to_u64(ndlp->nlp_portname.u.wwn) : 0;
已提交
4433 4434
}

4435
/**
4436
 * lpfc_set_rport_loss_tmo - Set the rport dev loss tmo
4437 4438 4439 4440 4441 4442 4443
 * @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
4444 4445 4446 4447
static void
lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
{
	if (timeout)
4448
		rport->dev_loss_tmo = timeout;
已提交
4449
	else
4450
		rport->dev_loss_tmo = 1;
已提交
4451 4452
}

4453
/**
4454
 * lpfc_rport_show_function - Return rport target information
4455 4456 4457 4458 4459 4460 4461 4462 4463 4464
 *
 * 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
4465 4466
#define lpfc_rport_show_function(field, format_string, sz, cast)	\
static ssize_t								\
4467 4468 4469
lpfc_show_rport_##field (struct device *dev,				\
			 struct device_attribute *attr,			\
			 char *buf)					\
已提交
4470
{									\
4471
	struct fc_rport *rport = transport_class_to_rport(dev);		\
已提交
4472 4473 4474 4475 4476 4477 4478 4479 4480
	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)

4481
/**
4482
 * lpfc_set_vport_symbolic_name - Set the vport's symbolic name
4483 4484 4485 4486 4487 4488 4489 4490 4491 4492 4493 4494 4495 4496 4497
 * @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
 * switch to propogate the change into the fabric if the vport is active.
 **/
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
4498

4499 4500 4501 4502 4503 4504 4505 4506 4507 4508 4509 4510 4511 4512 4513
/**
 * 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
 * log messsage according to the module's lpfc_log_verbose parameter setting
 * 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
4514 4515 4516 4517 4518 4519 4520 4521
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,
4522
	.show_host_symbolic_name = 1,
已提交
4523 4524 4525 4526 4527 4528 4529 4530 4531 4532 4533 4534 4535 4536 4537 4538 4539 4540 4541 4542 4543 4544 4545 4546 4547 4548

	/* 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,
4549
	.reset_fc_host_stats = lpfc_reset_stats,
已提交
4550 4551 4552 4553 4554 4555 4556 4557 4558 4559 4560 4561 4562 4563 4564 4565

	.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,
4566 4567

	.issue_fc_host_lip = lpfc_issue_lip,
4568 4569
	.dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk,
	.terminate_rport_io = lpfc_terminate_rport_io,
4570 4571

	.dd_fcvport_size = sizeof(struct lpfc_vport *),
4572 4573 4574 4575

	.vport_disable = lpfc_vport_disable,

	.set_vport_symbolic_name = lpfc_set_vport_symbolic_name,
4576 4577 4578

	.bsg_request = lpfc_bsg_request,
	.bsg_timeout = lpfc_bsg_timeout,
4579 4580
};

4581 4582 4583 4584 4585 4586 4587 4588
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,
4589
	.show_host_symbolic_name = 1,
4590 4591 4592 4593 4594 4595 4596 4597 4598 4599 4600 4601 4602 4603 4604 4605 4606 4607 4608 4609 4610 4611 4612 4613 4614 4615 4616 4617 4618 4619 4620 4621 4622 4623 4624 4625 4626 4627 4628 4629 4630 4631 4632 4633 4634 4635 4636 4637

	/* 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,
4638 4639

	.set_vport_symbolic_name = lpfc_set_vport_symbolic_name,
4640 4641
};

4642
/**
4643
 * lpfc_get_cfgparam - Used during probe_one to init the adapter structure
4644 4645
 * @phba: lpfc_hba pointer.
 **/
已提交
4646 4647 4648
void
lpfc_get_cfgparam(struct lpfc_hba *phba)
{
4649 4650
	lpfc_cr_delay_init(phba, lpfc_cr_delay);
	lpfc_cr_count_init(phba, lpfc_cr_count);
4651
	lpfc_multi_ring_support_init(phba, lpfc_multi_ring_support);
4652 4653
	lpfc_multi_ring_rctl_init(phba, lpfc_multi_ring_rctl);
	lpfc_multi_ring_type_init(phba, lpfc_multi_ring_type);
4654 4655 4656
	lpfc_ack0_init(phba, lpfc_ack0);
	lpfc_topology_init(phba, lpfc_topology);
	lpfc_link_speed_init(phba, lpfc_link_speed);
4657
	lpfc_poll_tmo_init(phba, lpfc_poll_tmo);
4658
	lpfc_enable_npiv_init(phba, lpfc_enable_npiv);
4659
	lpfc_enable_rrq_init(phba, lpfc_enable_rrq);
4660
	lpfc_use_msi_init(phba, lpfc_use_msi);
4661 4662 4663
	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);
4664 4665
	lpfc_enable_hba_reset_init(phba, lpfc_enable_hba_reset);
	lpfc_enable_hba_heartbeat_init(phba, lpfc_enable_hba_heartbeat);
4666
	lpfc_enable_bg_init(phba, lpfc_enable_bg);
4667 4668 4669
	if (phba->sli_rev == LPFC_SLI_REV4)
		phba->cfg_poll = 0;
	else
4670
	phba->cfg_poll = lpfc_poll;
4671
	phba->cfg_soft_wwnn = 0L;
4672
	phba->cfg_soft_wwpn = 0L;
4673
	lpfc_sg_seg_cnt_init(phba, lpfc_sg_seg_cnt);
4674
	lpfc_prot_sg_seg_cnt_init(phba, lpfc_prot_sg_seg_cnt);
4675
	lpfc_hba_queue_depth_init(phba, lpfc_hba_queue_depth);
4676
	lpfc_hba_log_verbose_init(phba, lpfc_log_verbose);
J
James Smart 已提交
4677
	lpfc_aer_support_init(phba, lpfc_aer_support);
4678
	lpfc_suppress_link_up_init(phba, lpfc_suppress_link_up);
4679
	lpfc_iocb_cnt_init(phba, lpfc_iocb_cnt);
4680 4681
	return;
}
4682

4683
/**
4684
 * lpfc_get_vport_cfgparam - Used during port create, init the vport structure
4685 4686
 * @vport: lpfc_vport pointer.
 **/
4687 4688 4689
void
lpfc_get_vport_cfgparam(struct lpfc_vport *vport)
{
4690
	lpfc_log_verbose_init(vport, lpfc_log_verbose);
4691
	lpfc_lun_queue_depth_init(vport, lpfc_lun_queue_depth);
4692
	lpfc_tgt_queue_depth_init(vport, lpfc_tgt_queue_depth);
4693 4694 4695 4696 4697 4698
	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);
4699
	lpfc_max_scsicmpl_time_init(vport, lpfc_max_scsicmpl_time);
4700 4701 4702 4703
	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
4704
	lpfc_enable_da_id_init(vport, lpfc_enable_da_id);
已提交
4705 4706
	return;
}