ixgbe: DCB, missed translation from 8021Qaz TSA to CEE link strict

[pandora-kernel.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 91ff51c..8abef8d 100644 (file)
--- a/drivers/net/ixgbe/ixgbe_dcb_nl.c
+++ b/drivers/net/ixgbe/ixgbe_dcb_nl.c
@@ -642,8 +642,9 @@ static int ixgbe_dcbnl_ieee_setets(struct net_device *dev,
 {
        struct ixgbe_adapter *adapter = netdev_priv(dev);
        __u16 refill[IEEE_8021QAZ_MAX_TCS], max[IEEE_8021QAZ_MAX_TCS];
+       __u8 prio_type[IEEE_8021QAZ_MAX_TCS];
        int max_frame = dev->mtu + ETH_HLEN + ETH_FCS_LEN;
-       int err;
+       int i, err;
        /* naively give each TC a bwg to map onto CEE hardware */
        __u8 bwg_id[IEEE_8021QAZ_MAX_TCS] = {0, 1, 2, 3, 4, 5, 6, 7};
 
@@ -659,9 +660,28 @@ static int ixgbe_dcbnl_ieee_setets(struct net_device *dev,
 
        memcpy(adapter->ixgbe_ieee_ets, ets, sizeof(*adapter->ixgbe_ieee_ets));
 
+       /* Map TSA onto CEE prio type */
+       for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
+               switch (ets->tc_tsa[i]) {
+               case IEEE_8021QAZ_TSA_STRICT:
+                       prio_type[i] = 2;
+                       break;
+               case IEEE_8021QAZ_TSA_ETS:
+                       prio_type[i] = 0;
+                       break;
+               default:
+                       /* Hardware only supports priority strict or
+                        * ETS transmission selection algorithms if
+                        * we receive some other value from dcbnl
+                        * throw an error
+                        */
+                       return -EINVAL;
+               }
+       }
+
        ixgbe_ieee_credits(ets->tc_tx_bw, refill, max, max_frame);
        err = ixgbe_dcb_hw_ets_config(&adapter->hw, refill, max,
-                                     bwg_id, ets->tc_tsa);
+                                     bwg_id, prio_type);
        return err;
 }