ixgbe: FCoE: Add support for ndo_get_fcoe_hbainfo() call

This patch implements support for ndo_get_fcoe_hbainfo()
call in the ixgbe driver.

This function will be called by the FCoE protocol stack to
obtain device specific information from the underlying
device configured to do FCoE.

Signed-off-by: Neerav Parikh <Neerav.Parikh@intel.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 83 insertions, 0 deletions

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c
index df3b1be69d8..d18d6157dd2 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c
@@ -855,3 +855,86 @@ int ixgbe_fcoe_get_wwn(struct net_device *netdev, u64 *wwn, int type)
         }
         return rc;
 }
+
+/**
+ * ixgbe_fcoe_get_hbainfo - get FCoE HBA information
+ * @netdev : ixgbe adapter
+ * @info : HBA information
+ *
+ * Returns ixgbe HBA information
+ *
+ * Returns : 0 on success
+ */
+int ixgbe_fcoe_get_hbainfo(struct net_device *netdev,
+                           struct netdev_fcoe_hbainfo *info)
+{
+        struct ixgbe_adapter *adapter = netdev_priv(netdev);
+        struct ixgbe_hw *hw = &adapter->hw;
+        int i, pos;
+        u8 buf[8];
+
+        if (!info)
+                return -EINVAL;
+
+        /* Don't return information on unsupported devices */
+        if (hw->mac.type != ixgbe_mac_82599EB &&
+            hw->mac.type != ixgbe_mac_X540)
+                return -EINVAL;
+
+        /* Manufacturer */
+        snprintf(info->manufacturer, sizeof(info->manufacturer),
+                 "Intel Corporation");
+
+        /* Serial Number */
+
+        /* Get the PCI-e Device Serial Number Capability */
+        pos = pci_find_ext_capability(adapter->pdev, PCI_EXT_CAP_ID_DSN);
+        if (pos) {
+                pos += 4;
+                for (i = 0; i < 8; i++)
+                        pci_read_config_byte(adapter->pdev, pos + i, &buf[i]);
+
+                snprintf(info->serial_number, sizeof(info->serial_number),
+                         "%02X%02X%02X%02X%02X%02X%02X%02X",
+                         buf[7], buf[6], buf[5], buf[4],
+                         buf[3], buf[2], buf[1], buf[0]);
+        } else
+                snprintf(info->serial_number, sizeof(info->serial_number),
+                         "Unknown");
+
+        /* Hardware Version */
+        snprintf(info->hardware_version,
+                 sizeof(info->hardware_version),
+                 "Rev %d", hw->revision_id);
+        /* Driver Name/Version */
+        snprintf(info->driver_version,
+                 sizeof(info->driver_version),
+                 "%s v%s",
+                 ixgbe_driver_name,
+                 ixgbe_driver_version);
+        /* Firmware Version */
+        snprintf(info->firmware_version,
+                 sizeof(info->firmware_version),
+                 "0x%08x",
+                 (adapter->eeprom_verh << 16) |
+                  adapter->eeprom_verl);
+
+        /* Model */
+        if (hw->mac.type == ixgbe_mac_82599EB) {
+                snprintf(info->model,
+                         sizeof(info->model),
+                         "Intel 82599");
+        } else {
+                snprintf(info->model,
+                         sizeof(info->model),
+                         "Intel X540");
+        }
+
+        /* Model Description */
+        snprintf(info->model_description,
+                 sizeof(info->model_description),
+                 "%s",
+                 ixgbe_default_device_descr);
+
+        return 0;
+}