be2net: Fix non utilization of RX queues

When non power of two MSIX vectors are given to driver, some RX queues
are not utilized. Program RSS table in such a way that all queues
are utilized.

Signed-off-by: Padmanabh Ratnakar <padmanabh.ratnakar@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index 66429ea..7236280 100644 (file)
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -2312,8 +2312,8 @@ static int be_close(struct net_device *netdev)
 static int be_rx_queues_setup(struct be_adapter *adapter)
 {
        struct be_rx_obj *rxo;
-       int rc, i;
-       u8 rsstable[MAX_RSS_QS];
+       int rc, i, j;
+       u8 rsstable[128];
 
        for_all_rx_queues(adapter, rxo, i) {
                rc = be_cmd_rxq_create(adapter, &rxo->q, rxo->cq.id,
@@ -2325,11 +2325,15 @@ static int be_rx_queues_setup(struct be_adapter *adapter)
        }
 
        if (be_multi_rxq(adapter)) {
-               for_all_rss_queues(adapter, rxo, i)
-                       rsstable[i] = rxo->rss_id;
+               for (j = 0; j < 128; j += adapter->num_rx_qs - 1) {
+                       for_all_rss_queues(adapter, rxo, i) {
+                               if ((j + i) >= 128)
+                                       break;
+                               rsstable[j + i] = rxo->rss_id;
+                       }
+               }
+               rc = be_cmd_rss_config(adapter, rsstable, 128);
 
-               rc = be_cmd_rss_config(adapter, rsstable,
-                       adapter->num_rx_qs - 1);
                if (rc)
                        return rc;
        }