net: mscc: ocelot: use ipv6 in the aggregation code

IPv6 header information is not currently part of the entropy source for
the 4-bit aggregation code used for LAG offload, even though it could be.
The hardware reference manual says about these fields:

ANA::AGGR_CFG.AC_IP6_TCPUDP_PORT_ENA
Use IPv6 TCP/UDP port when calculating aggregation code. Configure
identically for all ports. Recommended value is 1.

ANA::AGGR_CFG.AC_IP6_FLOW_LBL_ENA
Use IPv6 flow label when calculating AC. Configure identically for all
ports. Recommended value is 1.

Integration with the xmit_hash_policy of the bonding interface is TBD.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/drivers/net/ethernet/mscc/ocelot.c b/drivers/net/ethernet/mscc/ocelot.c
index 33274d4..ef3f10f 100644 (file)
--- a/drivers/net/ethernet/mscc/ocelot.c
+++ b/drivers/net/ethernet/mscc/ocelot.c
@@ -1615,7 +1615,10 @@ int ocelot_init(struct ocelot *ocelot)
        ocelot_write(ocelot, ANA_AGGR_CFG_AC_SMAC_ENA |
                             ANA_AGGR_CFG_AC_DMAC_ENA |
                             ANA_AGGR_CFG_AC_IP4_SIPDIP_ENA |
-                            ANA_AGGR_CFG_AC_IP4_TCPUDP_ENA, ANA_AGGR_CFG);
+                            ANA_AGGR_CFG_AC_IP4_TCPUDP_ENA |
+                            ANA_AGGR_CFG_AC_IP6_FLOW_LBL_ENA |
+                            ANA_AGGR_CFG_AC_IP6_TCPUDP_ENA,
+                            ANA_AGGR_CFG);
 
        /* Set MAC age time to default value. The entry is aged after
         * 2*AGE_PERIOD