ixgbe: add device support for 82598AT (copper 10GbE) adapters

Intel is currently shipping support for adapters with a phy
that does 10GBase-T (copper), which is 10 Gigabit ethernet
over standard Category 6 cabling.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

1 files changed, 33 insertions, 0 deletions

diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c
index 028bfb20412c..2a12e97d5efe 100644
--- a/drivers/net/ixgbe/ixgbe_main.c
+++ b/drivers/net/ixgbe/ixgbe_main.c
@@ -68,6 +68,8 @@ static struct pci_device_id ixgbe_pci_tbl[] = {
          board_82598 },
         {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598AF_SINGLE_PORT),
          board_82598 },
+        {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598AT),
+         board_82598 },
         {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598EB_CX4),
          board_82598 },
         {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598_CX4_DUAL_PORT),
@@ -904,6 +906,17 @@ static void ixgbe_set_itr_msix(struct ixgbe_q_vector *q_vector)
         return;
 }
 
+static void ixgbe_check_fan_failure(struct ixgbe_adapter *adapter, u32 eicr)
+{
+        struct ixgbe_hw *hw = &adapter->hw;
+
+        if ((adapter->flags & IXGBE_FLAG_FAN_FAIL_CAPABLE) &&
+            (eicr & IXGBE_EICR_GPI_SDP1)) {
+                DPRINTK(PROBE, CRIT, "Fan has stopped, replace the adapter\n");
+                /* write to clear the interrupt */
+                IXGBE_WRITE_REG(hw, IXGBE_EICR, IXGBE_EICR_GPI_SDP1);
+        }
+}
 
 static void ixgbe_check_lsc(struct ixgbe_adapter *adapter)
 {
@@ -928,6 +941,8 @@ static irqreturn_t ixgbe_msix_lsc(int irq, void *data)
         if (eicr & IXGBE_EICR_LSC)
                 ixgbe_check_lsc(adapter);
 
+        ixgbe_check_fan_failure(adapter, eicr);
+
         if (!test_bit(__IXGBE_DOWN, &adapter->state))
                 IXGBE_WRITE_REG(hw, IXGBE_EIMS, IXGBE_EIMS_OTHER);
 
@@ -1316,6 +1331,8 @@ static irqreturn_t ixgbe_intr(int irq, void *data)
         if (eicr & IXGBE_EICR_LSC)
                 ixgbe_check_lsc(adapter);
 
+        ixgbe_check_fan_failure(adapter, eicr);
+
         if (netif_rx_schedule_prep(netdev, &adapter->q_vector[0].napi)) {
                 adapter->tx_ring[0].total_packets = 0;
                 adapter->tx_ring[0].total_bytes = 0;
@@ -1418,6 +1435,8 @@ static inline void ixgbe_irq_enable(struct ixgbe_adapter *adapter)
 {
         u32 mask;
         mask = IXGBE_EIMS_ENABLE_MASK;
+        if (adapter->flags & IXGBE_FLAG_FAN_FAIL_CAPABLE)
+                mask |= IXGBE_EIMS_GPI_SDP1;
         IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMS, mask);
         IXGBE_WRITE_FLUSH(&adapter->hw);
 }
@@ -1927,6 +1946,13 @@ static int ixgbe_up_complete(struct ixgbe_adapter *adapter)
                 IXGBE_WRITE_REG(hw, IXGBE_EIAM, IXGBE_EICS_RTX_QUEUE);
         }
 
+        /* Enable fan failure interrupt if media type is copper */
+        if (adapter->flags & IXGBE_FLAG_FAN_FAIL_CAPABLE) {
+                gpie = IXGBE_READ_REG(hw, IXGBE_GPIE);
+                gpie |= IXGBE_SDP1_GPIEN;
+                IXGBE_WRITE_REG(hw, IXGBE_GPIE, gpie);
+        }
+
         mhadd = IXGBE_READ_REG(hw, IXGBE_MHADD);
         if (max_frame != (mhadd >> IXGBE_MHADD_MFS_SHIFT)) {
                 mhadd &= ~IXGBE_MHADD_MFS_MASK;
@@ -2564,6 +2590,9 @@ static int __devinit ixgbe_sw_init(struct ixgbe_adapter *adapter)
         rss = min(IXGBE_MAX_RSS_INDICES, (int)num_online_cpus());
         adapter->ring_feature[RING_F_RSS].indices = rss;
         adapter->flags |= IXGBE_FLAG_RSS_ENABLED;
+        if (hw->mac.ops.get_media_type &&
+            (hw->mac.ops.get_media_type(hw) == ixgbe_media_type_copper))
+                adapter->flags |= IXGBE_FLAG_FAN_FAIL_CAPABLE;
 
         /* default flow control settings */
         hw->fc.original_type = ixgbe_fc_none;
@@ -3691,6 +3720,10 @@ static int ixgbe_link_config(struct ixgbe_hw *hw)
         /* must always autoneg for both 1G and 10G link */
         hw->mac.autoneg = true;
 
+        if ((hw->mac.type == ixgbe_mac_82598EB) &&
+            (hw->phy.media_type == ixgbe_media_type_copper))
+                autoneg = IXGBE_LINK_SPEED_82598_AUTONEG;
+
         return hw->mac.ops.setup_link_speed(hw, autoneg, true, true);
 }