[SCSI] lpfc 8.2.4 : Add parameters to enable and disable heartbeat and hba resets
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>
diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c
index e1b041d..68e92be 100644
--- a/drivers/scsi/lpfc/lpfc_attr.c
+++ b/drivers/scsi/lpfc/lpfc_attr.c
@@ -342,6 +342,9 @@
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 @@
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 @@
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_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 @@
&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_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;