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path: root/drivers/infiniband/hw/nes/nes_hw.c
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Diffstat (limited to 'drivers/infiniband/hw/nes/nes_hw.c')
-rw-r--r--drivers/infiniband/hw/nes/nes_hw.c81
1 files changed, 81 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/nes/nes_hw.c b/drivers/infiniband/hw/nes/nes_hw.c
index 2b89b06ca7c3..8b606fd64022 100644
--- a/drivers/infiniband/hw/nes/nes_hw.c
+++ b/drivers/infiniband/hw/nes/nes_hw.c
@@ -2650,6 +2650,13 @@ static void nes_process_mac_intr(struct nes_device *nesdev, u32 mac_number)
}
}
}
+ 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 nes_device *nesdev, u32 mac_number)
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)