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[v2,net-next,05/14] net: mscc: ocelot: use ipv6 in the aggregation code

Message ID 20210116005943.219479-6-olteanv@gmail.com (mailing list archive)
State RFC
Delegated to: Netdev Maintainers
Headers show
Series LAG offload for Ocelot DSA switches | expand

Checks

Context Check Description
netdev/apply fail Patch does not apply to net-next
netdev/tree_selection success Clearly marked for net-next

Commit Message

Vladimir Oltean Jan. 16, 2021, 12:59 a.m. UTC 
From: Vladimir Oltean <vladimir.oltean@nxp.com>

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>
---
Changes in v2:
None.

 drivers/net/ethernet/mscc/ocelot.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/mscc/ocelot.c b/drivers/net/ethernet/mscc/ocelot.c
index d3a92c46f610..2b542f286739 100644
--- a/drivers/net/ethernet/mscc/ocelot.c
+++ b/drivers/net/ethernet/mscc/ocelot.c
@@ -1548,7 +1548,10 @@  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