blob: 135a53baa735177513f6dfcc7f7fd85afb9d8ea1 [file] [log] [blame]
/*******************************************************************
* This file is part of the Emulex Linux Device Driver for *
* Fibre Channel Host Bus Adapters. *
* Copyright (C) 2004-2011 Emulex. All rights reserved. *
* EMULEX and SLI are trademarks of Emulex. *
* www.emulex.com *
* Portions Copyright (C) 2004-2005 Christoph Hellwig *
* *
* This program is free software; you can redistribute it and/or *
* 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. *
*******************************************************************/
#include <linux/ctype.h>
#include <linux/delay.h>
#include <linux/pci.h>
#include <linux/interrupt.h>
#include <linux/aer.h>
#include <linux/gfp.h>
#include <linux/kernel.h>
#include <scsi/scsi.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_tcq.h>
#include <scsi/scsi_transport_fc.h>
#include <scsi/fc/fc_fs.h>
#include "lpfc_hw4.h"
#include "lpfc_hw.h"
#include "lpfc_sli.h"
#include "lpfc_sli4.h"
#include "lpfc_nl.h"
#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"
#include "lpfc_vport.h"
#define LPFC_DEF_DEVLOSS_TMO 30
#define LPFC_MIN_DEVLOSS_TMO 1
#define LPFC_MAX_DEVLOSS_TMO 255
/**
* lpfc_jedec_to_ascii - Hex to ascii convertor according to JEDEC rules
* @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.
**/
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;
}
/**
* lpfc_drvr_version_show - Return the Emulex driver string with version number
* @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_drvr_version_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
return snprintf(buf, PAGE_SIZE, LPFC_MODULE_DESC "\n");
}
/**
* 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");
}
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;
return snprintf(buf, PAGE_SIZE, "%llu\n",
(unsigned long long)phba->bg_guard_err_cnt);
}
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;
return snprintf(buf, PAGE_SIZE, "%llu\n",
(unsigned long long)phba->bg_apptag_err_cnt);
}
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;
return snprintf(buf, PAGE_SIZE, "%llu\n",
(unsigned long long)phba->bg_reftag_err_cnt);
}
/**
* lpfc_info_show - Return some pci info about the host in ascii
* @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.
**/
static ssize_t
lpfc_info_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *host = class_to_shost(dev);
return snprintf(buf, PAGE_SIZE, "%s\n",lpfc_info(host));
}
/**
* lpfc_serialnum_show - Return the hba serial number in ascii
* @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.
**/
static ssize_t
lpfc_serialnum_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
return snprintf(buf, PAGE_SIZE, "%s\n",phba->SerialNumber);
}
/**
* lpfc_temp_sensor_show - Return the temperature sensor level
* @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.
**/
static ssize_t
lpfc_temp_sensor_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->temp_sensor_support);
}
/**
* lpfc_modeldesc_show - Return the model description of the hba
* @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.
**/
static ssize_t
lpfc_modeldesc_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelDesc);
}
/**
* lpfc_modelname_show - Return the model name of the hba
* @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.
**/
static ssize_t
lpfc_modelname_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelName);
}
/**
* lpfc_programtype_show - Return the program type of the hba
* @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.
**/
static ssize_t
lpfc_programtype_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
return snprintf(buf, PAGE_SIZE, "%s\n",phba->ProgramType);
}
/**
* lpfc_mlomgmt_show - Return the Menlo Maintenance sli flag
* @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));
}
/**
* lpfc_vportnum_show - Return the port number in ascii of the hba
* @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.
**/
static ssize_t
lpfc_vportnum_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
return snprintf(buf, PAGE_SIZE, "%s\n",phba->Port);
}
/**
* lpfc_fwrev_show - Return the firmware rev running in the hba
* @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.
**/
static ssize_t
lpfc_fwrev_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;
char fwrev[32];
lpfc_decode_firmware_rev(phba, fwrev, 1);
return snprintf(buf, PAGE_SIZE, "%s, sli-%d\n", fwrev, phba->sli_rev);
}
/**
* lpfc_hdw_show - Return the jedec information about the hba
* @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.
**/
static ssize_t
lpfc_hdw_show(struct device *dev, struct device_attribute *attr, char *buf)
{
char hdw[9];
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
lpfc_vpd_t *vp = &phba->vpd;
lpfc_jedec_to_ascii(vp->rev.biuRev, hdw);
return snprintf(buf, PAGE_SIZE, "%s\n", hdw);
}
/**
* lpfc_option_rom_version_show - Return the adapter ROM FCode version
* @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.
**/
static ssize_t
lpfc_option_rom_version_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
return snprintf(buf, PAGE_SIZE, "%s\n", phba->OptionROMVersion);
}
/**
* lpfc_state_show - Return the link state of the port
* @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.
**/
static ssize_t
lpfc_link_state_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 len = 0;
switch (phba->link_state) {
case LPFC_LINK_UNKNOWN:
case LPFC_WARM_START:
case LPFC_INIT_START:
case LPFC_INIT_MBX_CMDS:
case LPFC_LINK_DOWN:
case LPFC_HBA_ERROR:
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");
break;
case LPFC_LINK_UP:
case LPFC_CLEAR_LA:
case LPFC_HBA_READY:
len += snprintf(buf + len, PAGE_SIZE-len, "Link Up - ");
switch (vport->port_state) {
case LPFC_LOCAL_CFG_LINK:
len += snprintf(buf + len, PAGE_SIZE-len,
"Configuring Link\n");
break;
case LPFC_FDISC:
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;
case LPFC_VPORT_FAILED:
len += snprintf(buf + len, PAGE_SIZE - len, "Failed\n");
break;
case LPFC_VPORT_UNKNOWN:
len += snprintf(buf + len, PAGE_SIZE - len,
"Unknown\n");
break;
}
if (phba->sli.sli_flag & LPFC_MENLO_MAINT)
len += snprintf(buf + len, PAGE_SIZE-len,
" Menlo Maint Mode\n");
else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
if (vport->fc_flag & FC_PUBLIC_LOOP)
len += snprintf(buf + len, PAGE_SIZE-len,
" Public Loop\n");
else
len += snprintf(buf + len, PAGE_SIZE-len,
" Private Loop\n");
} else {
if (vport->fc_flag & FC_FABRIC)
len += snprintf(buf + len, PAGE_SIZE-len,
" Fabric\n");
else
len += snprintf(buf + len, PAGE_SIZE-len,
" Point-2-Point\n");
}
}
return len;
}
/**
* 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))
status = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
else if ((strncmp(buf, "down", sizeof("down") - 1) == 0) &&
(phba->link_state >= LPFC_LINK_UP))
status = phba->lpfc_hba_down_link(phba, MBX_NOWAIT);
if (status == 0)
return strlen(buf);
else
return status;
}
/**
* lpfc_num_discovered_ports_show - Return sum of mapped and unmapped vports
* @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.
**/
static ssize_t
lpfc_num_discovered_ports_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;
return snprintf(buf, PAGE_SIZE, "%d\n",
vport->fc_map_cnt + vport->fc_unmap_cnt);
}
/**
* lpfc_issue_lip - Misnomer, name carried over from long ago
* @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
**/
static int
lpfc_issue_lip(struct Scsi_Host *shost)
{
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
LPFC_MBOXQ_t *pmboxq;
int mbxstatus = MBXERR_ERROR;
if ((vport->fc_flag & FC_OFFLINE_MODE) ||
(phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO))
return -EPERM;
pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL);
if (!pmboxq)
return -ENOMEM;
memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
pmboxq->u.mb.mbxCommand = MBX_DOWN_LINK;
pmboxq->u.mb.mbxOwner = OWN_HOST;
mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO * 2);
if ((mbxstatus == MBX_SUCCESS) &&
(pmboxq->u.mb.mbxStatus == 0 ||
pmboxq->u.mb.mbxStatus == MBXERR_LINK_DOWN)) {
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);
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");
}
lpfc_set_loopback_flag(phba);
if (mbxstatus != MBX_TIMEOUT)
mempool_free(pmboxq, phba->mbox_mem_pool);
if (mbxstatus == MBXERR_ERROR)
return -EIO;
return 0;
}
/**
* lpfc_do_offline - Issues a mailbox command to bring the link down
* @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.
* lpfc_workq_post_event() returns a non-zero return code if call fails.
*
* Returns:
* -EIO error posting the event
* zero for success
**/
static int
lpfc_do_offline(struct lpfc_hba *phba, uint32_t type)
{
struct completion online_compl;
struct lpfc_sli_ring *pring;
struct lpfc_sli *psli;
int status = 0;
int cnt = 0;
int i;
int rc;
init_completion(&online_compl);
rc = lpfc_workq_post_event(phba, &status, &online_compl,
LPFC_EVT_OFFLINE_PREP);
if (rc == 0)
return -ENOMEM;
wait_for_completion(&online_compl);
if (status != 0)
return -EIO;
psli = &phba->sli;
/* Wait a little for things to settle down, but not
* long enough for dev loss timeout to expire.
*/
for (i = 0; i < psli->num_rings; i++) {
pring = &psli->ring[i];
while (pring->txcmplq_cnt) {
msleep(10);
if (cnt++ > 500) { /* 5 secs */
lpfc_printf_log(phba,
KERN_WARNING, LOG_INIT,
"0466 Outstanding IO when "
"bringing Adapter offline\n");
break;
}
}
}
init_completion(&online_compl);
rc = lpfc_workq_post_event(phba, &status, &online_compl, type);
if (rc == 0)
return -ENOMEM;
wait_for_completion(&online_compl);
if (status != 0)
return -EIO;
return 0;
}
/**
* lpfc_selective_reset - Offline then onlines the port
* @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.
* Do not make this function static.
*
* Returns:
* lpfc_do_offline() return code if not zero
* -EIO reset not configured or error posting the event
* zero for success
**/
int
lpfc_selective_reset(struct lpfc_hba *phba)
{
struct completion online_compl;
int status = 0;
int rc;
if (!phba->cfg_enable_hba_reset)
return -EIO;
status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
if (status != 0)
return status;
init_completion(&online_compl);
rc = lpfc_workq_post_event(phba, &status, &online_compl,
LPFC_EVT_ONLINE);
if (rc == 0)
return -ENOMEM;
wait_for_completion(&online_compl);
if (status != 0)
return -EIO;
return 0;
}
/**
* lpfc_issue_reset - Selectively resets an adapter
* @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
* is returned which indicates success
*
* 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
**/
static ssize_t
lpfc_issue_reset(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, "selective", sizeof("selective") - 1) == 0)
status = phba->lpfc_selective_reset(phba);
if (status == 0)
return strlen(buf);
else
return status;
}
/**
* lpfc_sli4_pdev_reg_request - Request physical dev to perform a register acc
* @phba: lpfc_hba pointer.
*
* Description:
* Request SLI4 interface type-2 device to perform a physical register set
* access.
*
* Returns:
* zero for success
**/
static ssize_t
lpfc_sli4_pdev_reg_request(struct lpfc_hba *phba, uint32_t opcode)
{
struct completion online_compl;
uint32_t reg_val;
int status = 0;
int rc;
if (!phba->cfg_enable_hba_reset)
return -EIO;
if ((phba->sli_rev < LPFC_SLI_REV4) ||
(bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
LPFC_SLI_INTF_IF_TYPE_2))
return -EPERM;
status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
if (status != 0)
return status;
/* wait for the device to be quiesced before firmware reset */
msleep(100);
reg_val = readl(phba->sli4_hba.conf_regs_memmap_p +
LPFC_CTL_PDEV_CTL_OFFSET);
if (opcode == LPFC_FW_DUMP)
reg_val |= LPFC_FW_DUMP_REQUEST;
else if (opcode == LPFC_FW_RESET)
reg_val |= LPFC_CTL_PDEV_CTL_FRST;
else if (opcode == LPFC_DV_RESET)
reg_val |= LPFC_CTL_PDEV_CTL_DRST;
writel(reg_val, phba->sli4_hba.conf_regs_memmap_p +
LPFC_CTL_PDEV_CTL_OFFSET);
/* flush */
readl(phba->sli4_hba.conf_regs_memmap_p + LPFC_CTL_PDEV_CTL_OFFSET);
/* delay driver action following IF_TYPE_2 reset */
msleep(100);
init_completion(&online_compl);
rc = lpfc_workq_post_event(phba, &status, &online_compl,
LPFC_EVT_ONLINE);
if (rc == 0)
return -ENOMEM;
wait_for_completion(&online_compl);
if (status != 0)
return -EIO;
return 0;
}
/**
* lpfc_nport_evt_cnt_show - Return the number of nport events
* @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.
**/
static ssize_t
lpfc_nport_evt_cnt_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->nport_event_cnt);
}
/**
* lpfc_board_mode_show - Return the state of the board
* @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.
**/
static ssize_t
lpfc_board_mode_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;
char * state;
if (phba->link_state == LPFC_HBA_ERROR)
state = "error";
else if (phba->link_state == LPFC_WARM_START)
state = "warm start";
else if (phba->link_state == LPFC_INIT_START)
state = "offline";
else
state = "online";
return snprintf(buf, PAGE_SIZE, "%s\n", state);
}
/**
* lpfc_board_mode_store - Puts the hba in online, offline, warm or error state
* @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
**/
static ssize_t
lpfc_board_mode_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
struct completion online_compl;
int status=0;
int rc;
if (!phba->cfg_enable_hba_reset)
return -EACCES;
init_completion(&online_compl);
if(strncmp(buf, "online", sizeof("online") - 1) == 0) {
rc = lpfc_workq_post_event(phba, &status, &online_compl,
LPFC_EVT_ONLINE);
if (rc == 0)
return -ENOMEM;
wait_for_completion(&online_compl);
} else if (strncmp(buf, "offline", sizeof("offline") - 1) == 0)
status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
else if (strncmp(buf, "warm", sizeof("warm") - 1) == 0)
if (phba->sli_rev == LPFC_SLI_REV4)
return -EINVAL;
else
status = lpfc_do_offline(phba, LPFC_EVT_WARM_START);
else if (strncmp(buf, "error", sizeof("error") - 1) == 0)
if (phba->sli_rev == LPFC_SLI_REV4)
return -EINVAL;
else
status = lpfc_do_offline(phba, LPFC_EVT_KILL);
else if (strncmp(buf, "dump", sizeof("dump") - 1) == 0)
status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_DUMP);
else if (strncmp(buf, "fw_reset", sizeof("fw_reset") - 1) == 0)
status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_RESET);
else if (strncmp(buf, "dv_reset", sizeof("dv_reset") - 1) == 0)
status = lpfc_sli4_pdev_reg_request(phba, LPFC_DV_RESET);
else
return -EINVAL;
if (!status)
return strlen(buf);
else
return -EIO;
}
/**
* lpfc_get_hba_info - Return various bits of informaton about the adapter
* @phba: pointer to the adapter structure.
* @mxri: max xri count.
* @axri: available xri count.
* @mrpi: max rpi count.
* @arpi: available rpi count.
* @mvpi: max vpi count.
* @avpi: available vpi count.
*
* 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
**/
static int
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)
{
struct lpfc_mbx_read_config *rd_config;
LPFC_MBOXQ_t *pmboxq;
MAILBOX_t *pmb;
int rc = 0;
uint32_t max_vpi;
/*
* prevent udev from issuing mailbox commands until the port is
* configured.
*/
if (phba->link_state < LPFC_LINK_DOWN ||
!phba->mbox_mem_pool ||
(phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0)
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));
pmb = &pmboxq->u.mb;
pmb->mbxCommand = MBX_READ_CONFIG;
pmb->mbxOwner = OWN_HOST;
pmboxq->context1 = NULL;
if (phba->pport->fc_flag & FC_OFFLINE_MODE)
rc = MBX_NOT_FINISHED;
else
rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
if (rc != MBX_SUCCESS) {
if (rc != MBX_TIMEOUT)
mempool_free(pmboxq, phba->mbox_mem_pool);
return 0;
}
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;
/* 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;
if (mvpi)
*mvpi = max_vpi;
if (avpi)
*avpi = max_vpi - phba->sli4_hba.max_cfg_param.vpi_used;
} 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;
}
mempool_free(pmboxq, phba->mbox_mem_pool);
return 1;
}
/**
* lpfc_max_rpi_show - Return maximum rpi
* @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.
**/
static ssize_t
lpfc_max_rpi_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;
uint32_t cnt;
if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, NULL, NULL, NULL))
return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
return snprintf(buf, PAGE_SIZE, "Unknown\n");
}
/**
* lpfc_used_rpi_show - Return maximum rpi minus available rpi
* @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.
**/
static ssize_t
lpfc_used_rpi_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;
uint32_t cnt, acnt;
if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, &acnt, NULL, NULL))
return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
return snprintf(buf, PAGE_SIZE, "Unknown\n");
}
/**
* lpfc_max_xri_show - Return maximum xri
* @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.
**/
static ssize_t
lpfc_max_xri_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;
uint32_t cnt;
if (lpfc_get_hba_info(phba, &cnt, NULL, NULL, NULL, NULL, NULL))
return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
return snprintf(buf, PAGE_SIZE, "Unknown\n");
}
/**
* lpfc_used_xri_show - Return maximum xpi minus the available xpi
* @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.
**/
static ssize_t
lpfc_used_xri_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;
uint32_t cnt, acnt;
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");
}
/**
* lpfc_max_vpi_show - Return maximum vpi
* @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.
**/
static ssize_t
lpfc_max_vpi_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;
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");
}
/**
* lpfc_used_vpi_show - Return maximum vpi minus the available vpi
* @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.
**/
static ssize_t
lpfc_used_vpi_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;
uint32_t cnt, acnt;
if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, &acnt))
return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
return snprintf(buf, PAGE_SIZE, "Unknown\n");
}
/**
* lpfc_npiv_info_show - Return text about NPIV support for the adapter
* @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.
**/
static ssize_t
lpfc_npiv_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->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);
}
/**
* lpfc_poll_show - Return text about poll support for the adapter
* @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.
**/
static ssize_t
lpfc_poll_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, "%#x\n", phba->cfg_poll);
}
/**
* lpfc_poll_store - Set the value of cfg_poll for the adapter
* @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
**/
static ssize_t
lpfc_poll_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;
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;
if (phba->sli_rev == LPFC_SLI_REV4)
val = 0;
spin_lock_irq(&phba->hbalock);
old_val = phba->cfg_poll;
if (val & ENABLE_FCP_RING_POLLING) {
if ((val & DISABLE_FCP_RING_INT) &&
!(old_val & DISABLE_FCP_RING_INT)) {
if (lpfc_readl(phba->HCregaddr, &creg_val)) {
spin_unlock_irq(&phba->hbalock);
return -EINVAL;
}
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) {
spin_unlock_irq(&phba->hbalock);
return -EINVAL;
}
if (!(val & DISABLE_FCP_RING_INT) &&
(old_val & DISABLE_FCP_RING_INT))
{
spin_unlock_irq(&phba->hbalock);
del_timer(&phba->fcp_poll_timer);
spin_lock_irq(&phba->hbalock);
if (lpfc_readl(phba->HCregaddr, &creg_val)) {
spin_unlock_irq(&phba->hbalock);
return -EINVAL;
}
creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
writel(creg_val, phba->HCregaddr);
readl(phba->HCregaddr); /* flush */
}
phba->cfg_poll = val;
spin_unlock_irq(&phba->hbalock);
return strlen(buf);
}
/**
* 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);
}
/**
* lpfc_dss_show - Return the current state of dss and the configured state
* @dev: class converted to a Scsi_host structure.
* @attr: device attribute, not used.
* @buf: on return contains the formatted text.
*
* Returns: size of formatted string.
**/
static ssize_t
lpfc_dss_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
return snprintf(buf, PAGE_SIZE, "%s - %sOperational\n",
(phba->cfg_enable_dss) ? "Enabled" : "Disabled",
(phba->sli3_options & LPFC_SLI3_DSS_ENABLED) ?
"" : "Not ");
}
/**
* lpfc_sriov_hw_max_virtfn_show - Return maximum number of virtual functions
* @dev: class converted to a Scsi_host structure.
* @attr: device attribute, not used.
* @buf: on return contains the formatted support level.
*
* Description:
* Returns the maximum number of virtual functions a physical function can
* support, 0 will be returned if called on virtual function.
*
* Returns: size of formatted string.
**/
static ssize_t
lpfc_sriov_hw_max_virtfn_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
struct pci_dev *pdev = phba->pcidev;
union lpfc_sli4_cfg_shdr *shdr;
uint32_t shdr_status, shdr_add_status;
LPFC_MBOXQ_t *mboxq;
struct lpfc_mbx_get_prof_cfg *get_prof_cfg;
struct lpfc_rsrc_desc_pcie *desc;
uint32_t max_nr_virtfn;
uint32_t desc_count;
int length, rc, i;
if ((phba->sli_rev < LPFC_SLI_REV4) ||
(bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
LPFC_SLI_INTF_IF_TYPE_2))
return -EPERM;
if (!pdev->is_physfn)
return snprintf(buf, PAGE_SIZE, "%d\n", 0);
mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mboxq)
return -ENOMEM;
/* get the maximum number of virtfn support by physfn */
length = (sizeof(struct lpfc_mbx_get_prof_cfg) -
sizeof(struct lpfc_sli4_cfg_mhdr));
lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
LPFC_MBOX_OPCODE_GET_PROFILE_CONFIG,
length, LPFC_SLI4_MBX_EMBED);
shdr = (union lpfc_sli4_cfg_shdr *)
&mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
bf_set(lpfc_mbox_hdr_pf_num, &shdr->request,
phba->sli4_hba.iov.pf_number + 1);
get_prof_cfg = &mboxq->u.mqe.un.get_prof_cfg;
bf_set(lpfc_mbx_get_prof_cfg_prof_tp, &get_prof_cfg->u.request,
LPFC_CFG_TYPE_CURRENT_ACTIVE);
rc = lpfc_sli_issue_mbox_wait(phba, mboxq,
lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG));
if (rc != MBX_TIMEOUT) {
/* check return status */
shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
&shdr->response);
if (shdr_status || shdr_add_status || rc)
goto error_out;
} else
goto error_out;
desc_count = get_prof_cfg->u.response.prof_cfg.rsrc_desc_count;
for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
desc = (struct lpfc_rsrc_desc_pcie *)
&get_prof_cfg->u.response.prof_cfg.desc[i];
if (LPFC_RSRC_DESC_TYPE_PCIE ==
bf_get(lpfc_rsrc_desc_pcie_type, desc)) {
max_nr_virtfn = bf_get(lpfc_rsrc_desc_pcie_nr_virtfn,
desc);
break;
}
}
if (i < LPFC_RSRC_DESC_MAX_NUM) {
if (rc != MBX_TIMEOUT)
mempool_free(mboxq, phba->mbox_mem_pool);
return snprintf(buf, PAGE_SIZE, "%d\n", max_nr_virtfn);
}
error_out:
if (rc != MBX_TIMEOUT)
mempool_free(mboxq, phba->mbox_mem_pool);
return -EIO;
}
/**
* lpfc_param_show - Return a cfg attribute value in decimal
*
* 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.
**/
#define lpfc_param_show(attr) \
static ssize_t \
lpfc_##attr##_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;\
uint val = 0;\
val = phba->cfg_##attr;\
return snprintf(buf, PAGE_SIZE, "%d\n",\
phba->cfg_##attr);\
}
/**
* lpfc_param_hex_show - Return a cfg attribute value in hex
*
* 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.
* @buf: on return contains the attribute value in hexadecimal.
*
* Returns: size of formatted string.
**/
#define lpfc_param_hex_show(attr) \
static ssize_t \
lpfc_##attr##_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;\
uint val = 0;\
val = phba->cfg_##attr;\
return snprintf(buf, PAGE_SIZE, "%#x\n",\
phba->cfg_##attr);\
}
/**
* lpfc_param_init - Initializes a cfg attribute
*
* 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
**/
#define lpfc_param_init(attr, default, minval, maxval) \
static int \
lpfc_##attr##_init(struct lpfc_hba *phba, uint val) \
{ \
if (val >= minval && val <= maxval) {\
phba->cfg_##attr = val;\
return 0;\
}\
lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
"0449 lpfc_"#attr" attribute cannot be set to %d, "\
"allowed range is ["#minval", "#maxval"]\n", val); \
phba->cfg_##attr = default;\
return -EINVAL;\
}
/**
* lpfc_param_set - Set a cfg attribute value
*
* 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
**/
#define lpfc_param_set(attr, default, minval, maxval) \
static int \
lpfc_##attr##_set(struct lpfc_hba *phba, uint val) \
{ \
if (val >= minval && val <= maxval) {\
phba->cfg_##attr = val;\
return 0;\
}\
lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
"0450 lpfc_"#attr" attribute cannot be set to %d, "\
"allowed range is ["#minval", "#maxval"]\n", val); \
return -EINVAL;\
}
/**
* lpfc_param_store - Set a vport attribute value
*
* 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.
**/
#define lpfc_param_store(attr) \
static ssize_t \
lpfc_##attr##_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;\
uint val = 0;\
if (!isdigit(buf[0]))\
return -EINVAL;\
if (sscanf(buf, "%i", &val) != 1)\
return -EINVAL;\
if (lpfc_##attr##_set(phba, val) == 0) \
return strlen(buf);\
else \
return -EINVAL;\
}
/**
* lpfc_vport_param_show - Return decimal formatted cfg attribute value
*
* 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.
**/
#define lpfc_vport_param_show(attr) \
static ssize_t \
lpfc_##attr##_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;\
uint val = 0;\
val = vport->cfg_##attr;\
return snprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_##attr);\
}
/**
* lpfc_vport_param_hex_show - Return hex formatted attribute value
*
* 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 hexadecimal.
* @dev: class device that is converted into a Scsi_host.
* @attr: device attribute, not used.
* @buf: on return contains the attribute value in hexadecimal.
*
* Returns: length of formatted string.
**/
#define lpfc_vport_param_hex_show(attr) \
static ssize_t \
lpfc_##attr##_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;\
uint val = 0;\
val = vport->cfg_##attr;\
return snprintf(buf, PAGE_SIZE, "%#x\n", vport->cfg_##attr);\
}
/**
* lpfc_vport_param_init - Initialize a vport cfg attribute
*
* 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
**/
#define lpfc_vport_param_init(attr, default, minval, maxval) \
static int \
lpfc_##attr##_init(struct lpfc_vport *vport, uint val) \
{ \
if (val >= minval && val <= maxval) {\
vport->cfg_##attr = val;\
return 0;\
}\
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
"0423 lpfc_"#attr" attribute cannot be set to %d, "\
"allowed range is ["#minval", "#maxval"]\n", val); \
vport->cfg_##attr = default;\
return -EINVAL;\
}
/**
* lpfc_vport_param_set - Set a vport cfg attribute
*
* 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
**/
#define lpfc_vport_param_set(attr, default, minval, maxval) \
static int \
lpfc_##attr##_set(struct lpfc_vport *vport, uint val) \
{ \
if (val >= minval && val <= maxval) {\
vport->cfg_##attr = val;\
return 0;\
}\
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
"0424 lpfc_"#attr" attribute cannot be set to %d, "\
"allowed range is ["#minval", "#maxval"]\n", val); \
return -EINVAL;\
}
/**
* lpfc_vport_param_store - Set a vport attribute
*
* 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.
**/
#define lpfc_vport_param_store(attr) \
static ssize_t \
lpfc_##attr##_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;\
uint val = 0;\
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;\
}
#define LPFC_ATTR(name, defval, minval, maxval, desc) \
static uint lpfc_##name = defval;\
module_param(lpfc_##name, uint, S_IRUGO);\
MODULE_PARM_DESC(lpfc_##name, desc);\
lpfc_param_init(name, defval, minval, maxval)
#define LPFC_ATTR_R(name, defval, minval, maxval, desc) \
static uint lpfc_##name = defval;\
module_param(lpfc_##name, uint, S_IRUGO);\
MODULE_PARM_DESC(lpfc_##name, desc);\
lpfc_param_show(name)\
lpfc_param_init(name, defval, minval, maxval)\
static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
#define LPFC_ATTR_RW(name, defval, minval, maxval, desc) \
static uint lpfc_##name = defval;\
module_param(lpfc_##name, uint, S_IRUGO);\
MODULE_PARM_DESC(lpfc_##name, desc);\
lpfc_param_show(name)\
lpfc_param_init(name, defval, minval, maxval)\
lpfc_param_set(name, defval, minval, maxval)\
lpfc_param_store(name)\
static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
lpfc_##name##_show, lpfc_##name##_store)
#define LPFC_ATTR_HEX_R(name, defval, minval, maxval, desc) \
static uint lpfc_##name = defval;\
module_param(lpfc_##name, uint, S_IRUGO);\
MODULE_PARM_DESC(lpfc_##name, desc);\
lpfc_param_hex_show(name)\
lpfc_param_init(name, defval, minval, maxval)\
static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
#define LPFC_ATTR_HEX_RW(name, defval, minval, maxval, desc) \
static uint lpfc_##name = defval;\
module_param(lpfc_##name, uint, S_IRUGO);\
MODULE_PARM_DESC(lpfc_##name, desc);\
lpfc_param_hex_show(name)\
lpfc_param_init(name, defval, minval, maxval)\
lpfc_param_set(name, defval, minval, maxval)\
lpfc_param_store(name)\
static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
lpfc_##name##_show, lpfc_##name##_store)
#define LPFC_VPORT_ATTR(name, defval, minval, maxval, desc) \
static uint lpfc_##name = defval;\
module_param(lpfc_##name, uint, S_IRUGO);\
MODULE_PARM_DESC(lpfc_##name, desc);\
lpfc_vport_param_init(name, defval, minval, maxval)
#define LPFC_VPORT_ATTR_R(name, defval, minval, maxval, desc) \
static uint lpfc_##name = defval;\
module_param(lpfc_##name, uint, S_IRUGO);\
MODULE_PARM_DESC(lpfc_##name, desc);\
lpfc_vport_param_show(name)\
lpfc_vport_param_init(name, defval, minval, maxval)\
static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
#define LPFC_VPORT_ATTR_RW(name, defval, minval, maxval, desc) \
static uint lpfc_##name = defval;\
module_param(lpfc_##name, uint, S_IRUGO);\
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)\
static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
lpfc_##name##_show, lpfc_##name##_store)
#define LPFC_VPORT_ATTR_HEX_R(name, defval, minval, maxval, desc) \
static uint lpfc_##name = defval;\
module_param(lpfc_##name, uint, S_IRUGO);\
MODULE_PARM_DESC(lpfc_##name, desc);\
lpfc_vport_param_hex_show(name)\
lpfc_vport_param_init(name, defval, minval, maxval)\
static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
#define LPFC_VPORT_ATTR_HEX_RW(name, defval, minval, maxval, desc) \
static uint lpfc_##name = defval;\
module_param(lpfc_##name, uint, S_IRUGO);\
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)\
static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
lpfc_##name##_show, lpfc_##name##_store)
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);
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);
static DEVICE_ATTR(link_state, S_IRUGO | S_IWUSR, lpfc_link_state_show,
lpfc_link_state_store);
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);
static DEVICE_ATTR(menlo_mgmt_mode, S_IRUGO, lpfc_mlomgmt_show, NULL);
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);
static DEVICE_ATTR(lpfc_enable_fip, S_IRUGO, lpfc_enable_fip_show, NULL);
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);
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);
static DEVICE_ATTR(lpfc_dss, S_IRUGO, lpfc_dss_show, NULL);
static DEVICE_ATTR(lpfc_sriov_hw_max_virtfn, S_IRUGO,
lpfc_sriov_hw_max_virtfn_show, NULL);
static char *lpfc_soft_wwn_key = "C99G71SL8032A";
/**
* lpfc_soft_wwn_enable_store - Allows setting of the wwn if the key is valid
* @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
**/
static ssize_t
lpfc_soft_wwn_enable_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;
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--;
if ((cnt != strlen(lpfc_soft_wwn_key)) ||
(strncmp(buf, lpfc_soft_wwn_key, strlen(lpfc_soft_wwn_key)) != 0))
return -EINVAL;
phba->soft_wwn_enable = 1;
return count;
}
static DEVICE_ATTR(lpfc_soft_wwn_enable, S_IWUSR, NULL,
lpfc_soft_wwn_enable_store);
/**
* lpfc_soft_wwpn_show - Return the cfg soft ww port name of the adapter
* @dev: class device that is converted into a Scsi_host.
* @attr: device attribute, not used.
* @buf: on return contains the wwpn in hexadecimal.
*
* Returns: size of formatted string.
**/
static ssize_t
lpfc_soft_wwpn_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, "0x%llx\n",
(unsigned long long)phba->cfg_soft_wwpn);
}
/**
* lpfc_soft_wwpn_store - Set the ww port name of the adapter
* @dev class device that is converted into a Scsi_host.
* @attr: device attribute, not used.
* @buf: contains the wwpn in hexadecimal.
* @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
**/
static ssize_t
lpfc_soft_wwpn_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
struct completion online_compl;
int stat1=0, stat2=0;
unsigned int i, j, cnt=count;
u8 wwpn[8];
int rc;
if (!phba->cfg_enable_hba_reset)
return -EACCES;
spin_lock_irq(&phba->hbalock);
if (phba->over_temp_state == HBA_OVER_TEMP) {
spin_unlock_irq(&phba->hbalock);
return -EACCES;
}
spin_unlock_irq(&phba->hbalock);
/* 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;
phba->soft_wwn_enable = 0;
memset(wwpn, 0, sizeof(wwpn));
/* Validate and store the new name */
for (i=0, j=0; i < 16; i++) {
int value;
value = hex_to_bin(*buf++);
if (value >= 0)
j = (j << 4) | value;
else
return -EINVAL;
if (i % 2) {
wwpn[i/2] = j & 0xff;
j = 0;
}
}
phba->cfg_soft_wwpn = wwn_to_u64(wwpn);
fc_host_port_name(shost) = phba->cfg_soft_wwpn;
if (phba->cfg_soft_wwnn)
fc_host_node_name(shost) = phba->cfg_soft_wwnn;
dev_printk(KERN_NOTICE, &phba->pcidev->dev,
"lpfc%d: Reinitializing to use soft_wwpn\n", phba->brd_no);
stat1 = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
if (stat1)
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"0463 lpfc_soft_wwpn attribute set failed to "
"reinit adapter - %d\n", stat1);
init_completion(&online_compl);
rc = lpfc_workq_post_event(phba, &stat2, &online_compl,
LPFC_EVT_ONLINE);
if (rc == 0)
return -ENOMEM;
wait_for_completion(&online_compl);
if (stat2)
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"0464 lpfc_soft_wwpn attribute set failed to "
"reinit adapter - %d\n", stat2);
return (stat1 || stat2) ? -EIO : count;
}
static DEVICE_ATTR(lpfc_soft_wwpn, S_IRUGO | S_IWUSR,\
lpfc_soft_wwpn_show, lpfc_soft_wwpn_store);
/**
* lpfc_soft_wwnn_show - Return the cfg soft ww node name for the adapter
* @dev: class device that is converted into a Scsi_host.
* @attr: device attribute, not used.
* @buf: on return contains the wwnn in hexadecimal.
*
* Returns: size of formatted string.
**/
static ssize_t
lpfc_soft_wwnn_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, "0x%llx\n",
(unsigned long long)phba->cfg_soft_wwnn);
}
/**
* lpfc_soft_wwnn_store - sets the ww node name of the adapter
* @cdev: class device that is converted into a Scsi_host.
* @buf: contains the ww node name in hexadecimal.
* @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
**/
static ssize_t
lpfc_soft_wwnn_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
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++) {
int value;
value = hex_to_bin(*buf++);
if (value >= 0)
j = (j << 4) | value;
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;
}
static DEVICE_ATTR(lpfc_soft_wwnn, S_IRUGO | S_IWUSR,\
lpfc_soft_wwnn_show, lpfc_soft_wwnn_store);
static int lpfc_poll = 0;
module_param(lpfc_poll, int, S_IRUGO);
MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:"
" 0 - none,"
" 1 - poll with interrupts enabled"
" 3 - poll and disable FCP ring interrupts");
static DEVICE_ATTR(lpfc_poll, S_IRUGO | S_IWUSR,
lpfc_poll_show, lpfc_poll_store);
int lpfc_sli_mode = 0;
module_param(lpfc_sli_mode, int, S_IRUGO);
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");
int lpfc_enable_npiv = 1;
module_param(lpfc_enable_npiv, int, S_IRUGO);
MODULE_PARM_DESC(lpfc_enable_npiv, "Enable NPIV functionality");
lpfc_param_show(enable_npiv);
lpfc_param_init(enable_npiv, 1, 0, 1);
static DEVICE_ATTR(lpfc_enable_npiv, S_IRUGO, lpfc_enable_npiv_show, NULL);
int lpfc_enable_rrq;
module_param(lpfc_enable_rrq, int, S_IRUGO);
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);
/*
# 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.
*/
LPFC_ATTR_R(suppress_link_up, LPFC_INITIALIZE_LINK, LPFC_INITIALIZE_LINK,
LPFC_DELAY_INIT_LINK_INDEFINITELY,
"Suppress Link Up at initialization");
/*
# 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, S_IRUGO);
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);
/*
# 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");
/**
* lpfc_nodev_tmo_show - Return the hba dev loss timeout value
* @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.
**/
static ssize_t
lpfc_nodev_tmo_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;
return snprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_devloss_tmo);
}
/**
* lpfc_nodev_tmo_init - Set the hba nodev timeout value
* @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
**/
static int
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)
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
"0407 Ignoring nodev_tmo module "
"parameter because devloss_tmo is "
"set.\n");
return 0;
}
if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
vport->cfg_nodev_tmo = val;
vport->cfg_devloss_tmo = val;
return 0;
}
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);
vport->cfg_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
return -EINVAL;
}
/**
* lpfc_update_rport_devloss_tmo - Update dev loss tmo value
* @vport: lpfc vport structure pointer.
*
* Description:
* Update all the ndlp's dev loss tmo with the vport devloss tmo value.
**/
static void
lpfc_update_rport_devloss_tmo(struct lpfc_vport *vport)
{
struct Scsi_Host *shost;
struct lpfc_nodelist *ndlp;
shost = lpfc_shost_from_vport(vport);
spin_lock_irq(shost->host_lock);
list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp)
if (NLP_CHK_NODE_ACT(ndlp) && ndlp->rport)
ndlp->rport->dev_loss_tmo = vport->cfg_devloss_tmo;
spin_unlock_irq(shost->host_lock);
}
/**
* lpfc_nodev_tmo_set - Set the vport nodev tmo and devloss tmo values
* @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
**/
static int
lpfc_nodev_tmo_set(struct lpfc_vport *vport, int val)
{
if (vport->dev_loss_tmo_changed ||
(lpfc_devloss_tmo != LPFC_DEF_DEVLOSS_TMO)) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
"0401 Ignoring change to nodev_tmo "
"because devloss_tmo is set.\n");
return 0;
}
if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
vport->cfg_nodev_tmo = val;
vport->cfg_devloss_tmo = val;
/*
* 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;
lpfc_update_rport_devloss_tmo(vport);
return 0;
}
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);
return -EINVAL;
}
lpfc_vport_param_store(nodev_tmo)
static DEVICE_ATTR(lpfc_nodev_tmo, S_IRUGO | S_IWUSR,
lpfc_nodev_tmo_show, lpfc_nodev_tmo_store);
/*
# 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, S_IRUGO);
MODULE_PARM_DESC(lpfc_devloss_tmo,
"Seconds driver will hold I/O waiting "
"for a device to come back");
lpfc_vport_param_init(devloss_tmo, LPFC_DEF_DEVLOSS_TMO,
LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO)
lpfc_vport_param_show(devloss_tmo)
/**
* lpfc_devloss_tmo_set - Sets vport nodev tmo, devloss tmo values, changed bit
* @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
**/
static int
lpfc_devloss_tmo_set(struct lpfc_vport *vport, int val)
{
if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
vport->cfg_nodev_tmo = val;
vport->cfg_devloss_tmo = val;
vport->dev_loss_tmo_changed = 1;
fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val;
lpfc_update_rport_devloss_tmo(vport);
return 0;
}
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);
return -EINVAL;
}
lpfc_vport_param_store(devloss_tmo)
static DEVICE_ATTR(lpfc_devloss_tmo, S_IRUGO | S_IWUSR,
lpfc_devloss_tmo_show, lpfc_devloss_tmo_store);
/*
# lpfc_log_verbose: Only turn this flag on if you are willing to risk being
# deluged with LOTS of information.
# You can set a bit mask to record specific types of verbose messages:
# See lpfc_logmsh.h for definitions.
*/
LPFC_VPORT_ATTR_HEX_RW(log_verbose, 0x0, 0x0, 0xffffffff,
"Verbose logging bit-mask");
/*
# 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");
/*
# lun_queue_depth: This parameter is used to limit the number of outstanding
# commands per FCP LUN. Value range is [1,128]. Default value is 30.
*/
LPFC_VPORT_ATTR_R(lun_queue_depth, 30, 1, 128,
"Max number of FCP commands we can queue to a specific LUN");
/*
# 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");
/*
# 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");
/*
# 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.
*/
LPFC_VPORT_ATTR_R(peer_port_login, 0, 0, 1,
"Allow peer ports on the same physical port to login to each "
"other.");
/*
# restrict_login: This parameter allows/prevents logins
# 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.
*/
static int lpfc_restrict_login = 1;
module_param(lpfc_restrict_login, int, S_IRUGO);
MODULE_PARM_DESC(lpfc_restrict_login,
"Restrict virtual ports login to remote initiators.");
lpfc_vport_param_show(restrict_login);
/**
* lpfc_restrict_login_init - Set the vport restrict login flag
* @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
**/
static int
lpfc_restrict_login_init(struct lpfc_vport *vport, int val)
{
if (val < 0 || val > 1) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
"0422 lpfc_restrict_login attribute cannot "
"be set to %d, allowed range is [0, 1]\n",
val);
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;
}
/**
* lpfc_restrict_login_set - Set the vport restrict login flag
* @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
**/
static int
lpfc_restrict_login_set(struct lpfc_vport *vport, int val)
{
if (val < 0 || val > 1) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
"0425 lpfc_restrict_login attribute cannot "
"be set to %d, allowed range is [0, 1]\n",
val);
vport->cfg_restrict_login = 1;
return -EINVAL;
}
if (vport->port_type == LPFC_PHYSICAL_PORT && val != 0) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
"0468 lpfc_restrict_login must be 0 for "
"Physical ports.\n");
vport->cfg_restrict_login = 0;
return 0;
}
vport->cfg_restrict_login = val;
return 0;
}
lpfc_vport_param_store(restrict_login);
static DEVICE_ATTR(lpfc_restrict_login, S_IRUGO | S_IWUSR,
lpfc_restrict_login_show, lpfc_restrict_login_store);
/*
# Some disk devices have a "select ID" or "select Target" capability.
# From a protocol standpoint "select ID" usually means select the
# Fibre channel "ALPA". In the FC-AL Profile there is an "informative
# annex" which contains a table that maps a "select ID" (a number
# between 0 and 7F) to an ALPA. By default, for compatibility with
# older drivers, the lpfc driver scans this table from low ALPA to high
# ALPA.
#
# Turning on the scan-down variable (on = 1, off = 0) will
# cause the lpfc driver to use an inverted table, effectively
# scanning ALPAs from high to low. Value range is [0,1]. Default value is 1.
#
# (Note: This "select ID" functionality is a LOOP ONLY characteristic
# and will not work across a fabric. Also this parameter will take
# effect only in the case when ALPA map is not available.)
*/
LPFC_VPORT_ATTR_R(scan_down, 1, 0, 1,
"Start scanning for devices from highest ALPA to lowest");
/*
# lpfc_topology: link topology for init link
# 0x0 = attempt loop mode then point-to-point
# 0x01 = internal loopback mode
# 0x02 = attempt point-to-point mode only
# 0x04 = attempt loop mode only
# 0x06 = attempt point-to-point mode then loop
# Set point-to-point mode if you want to run as an N_Port.
# Set loop mode if you want to run as an NL_Port. Value range is [0,0x6].
# Default value is 0.
*/
/**
* lpfc_topology_set - Set the adapters topology field
* @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
**/
static ssize_t
lpfc_topology_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;
int nolip = 0;
const char *val_buf = buf;
int err;
uint32_t prev_val;
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;
if (val >= 0 && val <= 6) {
prev_val = phba->cfg_topology;
phba->cfg_topology = val;
if (nolip)
return strlen(buf);
err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport));
if (err) {
phba->cfg_topology = prev_val;
return -EINVAL;
} else
return strlen(buf);
}
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, S_IRUGO);
MODULE_PARM_DESC(lpfc_topology, "Select Fibre Channel topology");
lpfc_param_show(topology)
lpfc_param_init(topology, 0, 0, 6)
static DEVICE_ATTR(lpfc_topology, S_IRUGO | S_IWUSR,
lpfc_topology_show, lpfc_topology_store);
/**
* 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);
/**
* lpfc_stat_data_ctrl_store - write call back for lpfc_stat_data_ctrl sysfs file
* @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"))) {
if (strlen(buf) > (LPFC_MAX_DATA_CTRL_LEN - 1))
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;