net: mscc: ocelot: store a namespaced VCAP filter ID

We will be adding some private VCAP filters that should not interfere in
any way with the filters added using tc-flower. So we need to allocate
some IDs which will not be used by tc.

Currently ocelot uses an u32 id derived from the flow cookie, which in
itself is an unsigned long. This is a problem in itself, since on 64 bit
systems, sizeof(unsigned long)=8, so the driver is already truncating
these.

Create a struct ocelot_vcap_id which contains the full unsigned long
cookie from tc, as well as a boolean that is supposed to namespace the
filters added by tc with the ones that aren't.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

1 files changed, 6 insertions, 1 deletions

diff --git a/include/soc/mscc/ocelot_vcap.h b/include/soc/mscc/ocelot_vcap.h
index 7f1b82fba63c..76e01c927e17 100644
--- a/include/soc/mscc/ocelot_vcap.h
+++ b/include/soc/mscc/ocelot_vcap.h
@@ -648,6 +648,11 @@ enum ocelot_vcap_filter_type {
 	OCELOT_VCAP_FILTER_OFFLOAD,
 };
 
+struct ocelot_vcap_id {
+	unsigned long cookie;
+	bool tc_offload;
+};
+
 struct ocelot_vcap_filter {
 	struct list_head list;
 
@@ -657,7 +662,7 @@ struct ocelot_vcap_filter {
 	int lookup;
 	u8 pag;
 	u16 prio;
-	u32 id;
+	struct ocelot_vcap_id id;
 
 	struct ocelot_vcap_action action;
 	struct ocelot_vcap_stats stats;