staging: fsl-dpaa2/eth: Update default hash key

In our documentation, we claim to use a 5-tuple key for Rx hash
distribution of flows. The code however configures a key composed
of all supported header fields.

Update the Rx hash key to contain only the documented fields:
{IP src, IP dst, IP nextproto, L4 src, L4 dst}, which was the
original intention and makes most sense as a default.

Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.c b/drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.c
index da993ed..5dd73b1 100644 (file)
--- a/drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.c
+++ b/drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.c
@@ -2195,10 +2195,10 @@ static int bind_dpni(struct dpaa2_eth_priv *priv)
                return err;
        }
 
-       /* have the interface implicitly distribute traffic based on supported
-        * header fields
+       /* have the interface implicitly distribute traffic based on
+        * the default hash key
         */
-       err = dpaa2_eth_set_hash(net_dev, DPAA2_RXH_SUPPORTED);
+       err = dpaa2_eth_set_hash(net_dev, DPAA2_RXH_DEFAULT);
        if (err)
                dev_err(dev, "Failed to configure hashing\n");
 

diff --git a/drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.h b/drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.h
index 905a4e6..5589738 100644 (file)
--- a/drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.h
+++ b/drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.h
@@ -377,11 +377,14 @@ struct dpaa2_eth_priv {
        u64 rx_hash_fields;
 };
 
-/* default Rx hash options, set during probing */
 #define DPAA2_RXH_SUPPORTED    (RXH_L2DA | RXH_VLAN | RXH_L3_PROTO \
                                | RXH_IP_SRC | RXH_IP_DST | RXH_L4_B_0_1 \
                                | RXH_L4_B_2_3)
 
+/* default Rx hash options, set during probing */
+#define DPAA2_RXH_DEFAULT      (RXH_L3_PROTO | RXH_IP_SRC | RXH_IP_DST | \
+                                RXH_L4_B_0_1 | RXH_L4_B_2_3)
+
 #define dpaa2_eth_hash_enabled(priv)   \
        ((priv)->dpni_attrs.num_queues > 1)