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scsi: fnic: Ratelimit printks to avoid flooding when vlan is not set by the switch.i

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This is to avoid the log from being filled with vlan discovery messages
when there is no vlan configured on the switch.

Signed-off-by: Satish Kharat <satishkh@cisco.com>
Signed-off-by: Sesidhar Baddela <sebaddel@cisco.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Satish Kharat 2017-02-28 16:11:57 -08:00 committed by Martin K. Petersen
parent cca678dfba
commit b43abcbbd5
1 changed files with 13 additions and 8 deletions
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21
drivers/scsi/fnic/fnic_fcs.c
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@ -342,8 +342,11 @@ static void fnic_fcoe_send_vlan_req(struct fnic *fnic)
fnic_fcoe_reset_vlans(fnic);
fnic->set_vlan(fnic, 0);
FNIC_FCS_DBG(KERN_INFO, fnic->lport->host,
"Sending VLAN request...\n");
if (printk_ratelimit())
FNIC_FCS_DBG(KERN_INFO, fnic->lport->host,
"Sending VLAN request...\n");
skb = dev_alloc_skb(sizeof(struct fip_vlan));
if (!skb)
return;
@ -1313,10 +1316,11 @@ void fnic_handle_fip_timer(struct fnic *fnic)
spin_lock_irqsave(&fnic->vlans_lock, flags);
if (list_empty(&fnic->vlans)) {
/* no vlans available, try again */
FNIC_FCS_DBG(KERN_DEBUG, fnic->lport->host,
"Start VLAN Discovery\n");
spin_unlock_irqrestore(&fnic->vlans_lock, flags);
/* no vlans available, try again */
if (printk_ratelimit())
FNIC_FCS_DBG(KERN_DEBUG, fnic->lport->host,
"Start VLAN Discovery\n");
fnic_event_enq(fnic, FNIC_EVT_START_VLAN_DISC);
return;
}
@ -1332,10 +1336,11 @@ void fnic_handle_fip_timer(struct fnic *fnic)
spin_unlock_irqrestore(&fnic->vlans_lock, flags);
break;
case FIP_VLAN_FAILED:
/* if all vlans are in failed state, restart vlan disc */
FNIC_FCS_DBG(KERN_DEBUG, fnic->lport->host,
"Start VLAN Discovery\n");
spin_unlock_irqrestore(&fnic->vlans_lock, flags);
/* if all vlans are in failed state, restart vlan disc */
if (printk_ratelimit())
FNIC_FCS_DBG(KERN_DEBUG, fnic->lport->host,
"Start VLAN Discovery\n");
fnic_event_enq(fnic, FNIC_EVT_START_VLAN_DISC);
break;
case FIP_VLAN_SENT: