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[SCSI] lpfc 8.2.4 : Add parameters to enable and disable heartbeat and hba resets

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Add parameters to enable and disable heartbeat and hba resets

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
This commit is contained in:
James Smart
2008-01-11 01:52:48 -05:00
committed by James Bottomley
parent fa61a54e48
commit 13815c8344
4 changed files with 75 additions and 40 deletions
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25
drivers/scsi/lpfc/lpfc_attr.c
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@@ -342,6 +342,9 @@ lpfc_selective_reset(struct lpfc_hba *phba)
struct completion online_compl;
int status = 0;
if (!phba->cfg_enable_hba_reset)
return -EIO;
status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
if (status != 0)
@@ -415,6 +418,8 @@ lpfc_board_mode_store(struct class_device *cdev, const char *buf, size_t count)
struct completion online_compl;
int status=0;
if (!phba->cfg_enable_hba_reset)
return -EACCES;
init_completion(&online_compl);
if(strncmp(buf, "online", sizeof("online") - 1) == 0) {
@@ -979,6 +984,8 @@ lpfc_soft_wwpn_store(struct class_device *cdev, const char *buf, size_t count)
unsigned int i, j, cnt=count;
u8 wwpn[8];
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);
@@ -1506,7 +1513,21 @@ LPFC_ATTR_RW(poll_tmo, 10, 1, 255,
*/
LPFC_ATTR_R(use_msi, 0, 0, 1, "Use Message Signaled Interrupts, if possible");
/*
# 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.");
/*
# lpfc_enable_hba_heartbeat: Enable HBA heartbeat timer..
# 0 = HBA Heartbeat disabled
# 1 = HBA Heartbeat enabled (default)
# Value range is [0,1]. Default value is 1.
*/
LPFC_ATTR_R(enable_hba_heartbeat, 1, 0, 1, "Enable HBA Heartbeat.");
struct class_device_attribute *lpfc_hba_attrs[] = {
&class_device_attr_info,
@@ -1558,6 +1579,8 @@ struct class_device_attribute *lpfc_hba_attrs[] = {
&class_device_attr_lpfc_soft_wwnn,
&class_device_attr_lpfc_soft_wwpn,
&class_device_attr_lpfc_soft_wwn_enable,
&class_device_attr_lpfc_enable_hba_reset,
&class_device_attr_lpfc_enable_hba_heartbeat,
NULL,
};
@@ -2448,6 +2471,8 @@ lpfc_get_cfgparam(struct lpfc_hba *phba)
lpfc_poll_tmo_init(phba, lpfc_poll_tmo);
lpfc_enable_npiv_init(phba, lpfc_enable_npiv);
lpfc_use_msi_init(phba, lpfc_use_msi);
lpfc_enable_hba_reset_init(phba, lpfc_enable_hba_reset);
lpfc_enable_hba_heartbeat_init(phba, lpfc_enable_hba_heartbeat);
phba->cfg_poll = lpfc_poll;
phba->cfg_soft_wwnn = 0L;
phba->cfg_soft_wwpn = 0L;