be2net: don't create multiple TXQs in BE2
Sathya Perla [Mon, 24 Oct 2011 02:45:02 +0000 (02:45 +0000)]
Multiple TXQ support is partially broken in BE2. It is fully
supported BE3 onwards and in Lancer.

Signed-off-by: Vasundhara Volam <vasundhara.volam@emulex.com>
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/emulex/benet/be_main.c

index d32e378..555b0ec 100644 (file)
@@ -1633,6 +1633,17 @@ static void be_tx_queues_destroy(struct be_adapter *adapter)
        be_queue_free(adapter, q);
 }
 
+static int be_num_txqs_want(struct be_adapter *adapter)
+{
+       if ((num_vfs && adapter->sriov_enabled) ||
+               (adapter->function_mode & 0x400) ||
+               lancer_chip(adapter) || !be_physfn(adapter) ||
+               adapter->generation == BE_GEN2)
+               return 1;
+       else
+               return MAX_TX_QS;
+}
+
 /* One TX event queue is shared by all TX compl qs */
 static int be_tx_queues_create(struct be_adapter *adapter)
 {
@@ -1640,6 +1651,11 @@ static int be_tx_queues_create(struct be_adapter *adapter)
        struct be_tx_obj *txo;
        u8 i;
 
+       adapter->num_tx_qs = be_num_txqs_want(adapter);
+       if (adapter->num_tx_qs != MAX_TX_QS)
+               netif_set_real_num_tx_queues(adapter->netdev,
+                       adapter->num_tx_qs);
+
        adapter->tx_eq.max_eqd = 0;
        adapter->tx_eq.min_eqd = 0;
        adapter->tx_eq.cur_eqd = 96;
@@ -3180,16 +3196,6 @@ static int be_get_config(struct be_adapter *adapter)
        if (status)
                return status;
 
-       if ((num_vfs && adapter->sriov_enabled) ||
-               (adapter->function_mode & 0x400) ||
-               lancer_chip(adapter) || !be_physfn(adapter)) {
-               adapter->num_tx_qs = 1;
-               netif_set_real_num_tx_queues(adapter->netdev,
-                       adapter->num_tx_qs);
-       } else {
-               adapter->num_tx_qs = MAX_TX_QS;
-       }
-
        return 0;
 }