This is a note to let you know that I've just added the patch titled
nfp: flower: add ipv6 bit to pre_tunnel control message
to the 5.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
nfp-flower-add-ipv6-bit-to-pre_tunnel-control-messag.patch
and it can be found in the queue-5.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit b8ccde2abea25f2fbc794bbd82fcdbf1b8e8c58c
Author: Louis Peens <louis.peens@xxxxxxxxxxxx>
Date: Tue Mar 16 19:13:09 2021 +0100
nfp: flower: add ipv6 bit to pre_tunnel control message
[ Upstream commit 5c4f5e19d6a8e159127b9d653bb67e0dc7a28047 ]
Differentiate between ipv4 and ipv6 flows when configuring the pre_tunnel
table to prevent them trampling each other in the table.
Fixes: 783461604f7e ("nfp: flower: update flow merge code to support IPv6 tunnels")
Signed-off-by: Louis Peens <louis.peens@xxxxxxxxxxxx>
Signed-off-by: Simon Horman <simon.horman@xxxxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/net/ethernet/netronome/nfp/flower/tunnel_conf.c b/drivers/net/ethernet/netronome/nfp/flower/tunnel_conf.c
index 7248d248f604..d19c02e99114 100644
--- a/drivers/net/ethernet/netronome/nfp/flower/tunnel_conf.c
+++ b/drivers/net/ethernet/netronome/nfp/flower/tunnel_conf.c
@@ -16,8 +16,9 @@
#define NFP_FL_MAX_ROUTES 32
#define NFP_TUN_PRE_TUN_RULE_LIMIT 32
-#define NFP_TUN_PRE_TUN_RULE_DEL 0x1
-#define NFP_TUN_PRE_TUN_IDX_BIT 0x8
+#define NFP_TUN_PRE_TUN_RULE_DEL BIT(0)
+#define NFP_TUN_PRE_TUN_IDX_BIT BIT(3)
+#define NFP_TUN_PRE_TUN_IPV6_BIT BIT(7)
/**
* struct nfp_tun_pre_run_rule - rule matched before decap
@@ -1268,6 +1269,7 @@ int nfp_flower_xmit_pre_tun_flow(struct nfp_app *app,
{
struct nfp_flower_priv *app_priv = app->priv;
struct nfp_tun_offloaded_mac *mac_entry;
+ struct nfp_flower_meta_tci *key_meta;
struct nfp_tun_pre_tun_rule payload;
struct net_device *internal_dev;
int err;
@@ -1290,6 +1292,15 @@ int nfp_flower_xmit_pre_tun_flow(struct nfp_app *app,
if (!mac_entry)
return -ENOENT;
+ /* Set/clear IPV6 bit. cpu_to_be16() swap will lead to MSB being
+ * set/clear for port_idx.
+ */
+ key_meta = (struct nfp_flower_meta_tci *)flow->unmasked_data;
+ if (key_meta->nfp_flow_key_layer & NFP_FLOWER_LAYER_IPV6)
+ mac_entry->index |= NFP_TUN_PRE_TUN_IPV6_BIT;
+ else
+ mac_entry->index &= ~NFP_TUN_PRE_TUN_IPV6_BIT;
+
payload.port_idx = cpu_to_be16(mac_entry->index);
/* Copy mac id and vlan to flow - dev may not exist at delete time. */
