@@ -674,6 +674,8 @@ static int __devinit nes_probe(struct pc
}
nes_notifiers_registered++;
+ INIT_DELAYED_WORK(&nesdev->work, nes_recheck_link_status);
+
/* Initialize network devices */
if ((netdev = nes_netdev_init(nesdev, mmio_regs)) == NULL)
goto bail7;
@@ -756,6 +758,7 @@ static void __devexit nes_remove(struct
struct nes_device *nesdev = pci_get_drvdata(pcidev);
struct net_device *netdev;
int netdev_index = 0;
+ unsigned long flags;
if (nesdev->netdev_count) {
netdev = nesdev->netdev[netdev_index];
@@ -782,6 +785,14 @@ static void __devexit nes_remove(struct
free_irq(pcidev->irq, nesdev);
tasklet_kill(&nesdev->dpc_tasklet);
+ spin_lock_irqsave(&nesdev->nesadapter->phy_lock, flags);
+ if (nesdev->link_recheck) {
+ spin_unlock_irqrestore(&nesdev->nesadapter->phy_lock, flags);
+ cancel_delayed_work_sync(&nesdev->work);
+ } else {
+ spin_unlock_irqrestore(&nesdev->nesadapter->phy_lock, flags);
+ }
+
/* Deallocate the Adapter Structure */
nes_destroy_adapter(nesdev->nesadapter);
@@ -268,6 +268,9 @@ struct nes_device {
u8 napi_isr_ran;
u8 disable_rx_flow_control;
u8 disable_tx_flow_control;
+
+ struct delayed_work work;
+ u8 link_recheck;
};
@@ -507,6 +510,7 @@ void nes_nic_ce_handler(struct nes_devic
void nes_iwarp_ce_handler(struct nes_device *, struct nes_hw_cq *);
int nes_destroy_cqp(struct nes_device *);
int nes_nic_cm_xmit(struct sk_buff *, struct net_device *);
+void nes_recheck_link_status(struct work_struct *work);
/* nes_nic.c */
struct net_device *nes_netdev_init(struct nes_device *, void __iomem *);
@@ -2650,6 +2650,13 @@ static void nes_process_mac_intr(struct
}
}
}
+ if (nesadapter->phy_type[mac_index] == NES_PHY_TYPE_SFP_D) {
+ if (nesdev->link_recheck)
+ cancel_delayed_work(&nesdev->work);
+ nesdev->link_recheck = 1;
+ schedule_delayed_work(&nesdev->work,
+ NES_LINK_RECHECK_DELAY);
+ }
}
spin_unlock_irqrestore(&nesadapter->phy_lock, flags);
@@ -2657,6 +2664,80 @@ static void nes_process_mac_intr(struct
nesadapter->mac_sw_state[mac_number] = NES_MAC_SW_IDLE;
}
+void nes_recheck_link_status(struct work_struct *work)
+{
+ unsigned long flags;
+ struct nes_device *nesdev = container_of(work, struct nes_device, work.work);
+ struct nes_adapter *nesadapter = nesdev->nesadapter;
+ struct nes_vnic *nesvnic;
+ u32 mac_index = nesdev->mac_index;
+ u16 phy_data;
+ u16 temp_phy_data;
+
+ spin_lock_irqsave(&nesadapter->phy_lock, flags);
+
+ /* check link status */
+ nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 1, 0x9003);
+ temp_phy_data = (u16)nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL);
+
+ nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 3, 0x0021);
+ nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL);
+ nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 3, 0x0021);
+ phy_data = (u16)nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL);
+
+ phy_data = (!temp_phy_data && (phy_data == 0x8000)) ? 0x4 : 0x0;
+
+ nes_debug(NES_DBG_PHY, "%s: Phy data = 0x%04X, link was %s.\n",
+ __func__, phy_data,
+ nesadapter->mac_link_down[mac_index] ? "DOWN" : "UP");
+
+ if (phy_data & 0x0004) {
+ nesadapter->mac_link_down[mac_index] = 0;
+ list_for_each_entry(nesvnic, &nesadapter->nesvnic_list[mac_index], list) {
+ if (nesvnic->linkup == 0) {
+ printk(PFX "The Link is now up for port %s, netdev %p.\n",
+ nesvnic->netdev->name, nesvnic->netdev);
+ if (netif_queue_stopped(nesvnic->netdev))
+ netif_start_queue(nesvnic->netdev);
+ nesvnic->linkup = 1;
+ netif_carrier_on(nesvnic->netdev);
+
+ spin_lock(&nesvnic->port_ibevent_lock);
+ if (nesdev->iw_status == 0) {
+ nesdev->iw_status = 1;
+ nes_port_ibevent(nesvnic);
+ }
+ spin_unlock(&nesvnic->port_ibevent_lock);
+ }
+ }
+
+ } else {
+ nesadapter->mac_link_down[mac_index] = 1;
+ list_for_each_entry(nesvnic, &nesadapter->nesvnic_list[mac_index], list) {
+ if (nesvnic->linkup == 1) {
+ printk(PFX "The Link is now down for port %s, netdev %p.\n",
+ nesvnic->netdev->name, nesvnic->netdev);
+ if (!(netif_queue_stopped(nesvnic->netdev)))
+ netif_stop_queue(nesvnic->netdev);
+ nesvnic->linkup = 0;
+ netif_carrier_off(nesvnic->netdev);
+
+ spin_lock(&nesvnic->port_ibevent_lock);
+ if (nesdev->iw_status == 1) {
+ nesdev->iw_status = 0;
+ nes_port_ibevent(nesvnic);
+ }
+ spin_unlock(&nesvnic->port_ibevent_lock);
+ }
+ }
+ }
+ if (nesdev->link_recheck++ < NES_LINK_RECHECK_MAX)
+ schedule_delayed_work(&nesdev->work, NES_LINK_RECHECK_DELAY);
+ else
+ nesdev->link_recheck = 0;
+
+ spin_unlock_irqrestore(&nesadapter->phy_lock, flags);
+}
static void nes_nic_napi_ce_handler(struct nes_device *nesdev, struct nes_hw_nic_cq *cq)
@@ -1354,6 +1354,10 @@ #define RDMA_READ_REQ_OPCODE 1
#define BAD_FRAME_OFFSET 64
#define CQE_MAJOR_DRV 0x8000
+/* Used for link status recheck after interrupt processing */
+#define NES_LINK_RECHECK_DELAY msecs_to_jiffies(50)
+#define NES_LINK_RECHECK_MAX 60
+
#define nes_vlan_rx vlan_hwaccel_receive_skb
#define nes_netif_rx netif_receive_skb