DCB: Add interface to query for the DCB capabilities of an device.

[linux-2.6.git] / drivers / net / ixgbe / ixgbe_dcb_nl.c

diff --git a/drivers/net/ixgbe/ixgbe_dcb_nl.c b/drivers/net/ixgbe/ixgbe_dcb_nl.c
index 50bff2af6b04e7a328320051684d4825612f7e77..eb3a6cea1aaae7dd0963d262629783144de420cd 100644 (file)
--- a/drivers/net/ixgbe/ixgbe_dcb_nl.c
+++ b/drivers/net/ixgbe/ixgbe_dcb_nl.c
@@ -337,6 +337,45 @@ static u8 ixgbe_dcbnl_set_all(struct net_device *netdev)
        return ret;
 }
 
+static u8 ixgbe_dcbnl_getcap(struct net_device *netdev, int capid, u8 *cap)
+{
+       struct ixgbe_adapter *adapter = netdev_priv(netdev);
+       u8 rval = 0;
+
+       if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) {
+               switch (capid) {
+               case DCB_CAP_ATTR_PG:
+                       *cap = true;
+                       break;
+               case DCB_CAP_ATTR_PFC:
+                       *cap = true;
+                       break;
+               case DCB_CAP_ATTR_UP2TC:
+                       *cap = false;
+                       break;
+               case DCB_CAP_ATTR_PG_TCS:
+                       *cap = 0x80;
+                       break;
+               case DCB_CAP_ATTR_PFC_TCS:
+                       *cap = 0x80;
+                       break;
+               case DCB_CAP_ATTR_GSP:
+                       *cap = true;
+                       break;
+               case DCB_CAP_ATTR_BCN:
+                       *cap = false;
+                       break;
+               default:
+                       rval = -EINVAL;
+                       break;
+               }
+       } else {
+               rval = -EINVAL;
+       }
+
+       return rval;
+}
+
 struct dcbnl_rtnl_ops dcbnl_ops = {
        .getstate       = ixgbe_dcbnl_get_state,
        .setstate       = ixgbe_dcbnl_set_state,
@@ -351,6 +390,7 @@ struct dcbnl_rtnl_ops dcbnl_ops = {
        .getpgbwgcfgrx  = ixgbe_dcbnl_get_pg_bwg_cfg_rx,
        .setpfccfg      = ixgbe_dcbnl_set_pfc_cfg,
        .getpfccfg      = ixgbe_dcbnl_get_pfc_cfg,
-       .setall         = ixgbe_dcbnl_set_all
+       .setall         = ixgbe_dcbnl_set_all,
+       .getcap         = ixgbe_dcbnl_getcap
 };