diff mbox series

[v5,net-next,4/9] net: mscc: ocelot: set vcap IS2 chain to goto PSFP chain

Message ID 20210924095226.38079-5-xiaoliang.yang_1@nxp.com (mailing list archive)
State New, archived
Headers show
Series net: dsa: felix: psfp support on vsc9959 | expand

Commit Message

Xiaoliang Yang Sept. 24, 2021, 9:52 a.m. UTC 
Some chips in the ocelot series such as VSC9959 support Per-Stream
Filtering and Policing(PSFP), which is processing after VCAP blocks.
We set this block on chain 30000 and set vcap IS2 chain to goto PSFP
chain if hardware support.

Signed-off-by: Xiaoliang Yang <xiaoliang.yang_1@nxp.com>
---
 drivers/net/ethernet/mscc/ocelot_flower.c | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

Comments

Vladimir Oltean Sept. 25, 2021, 7:29 p.m. UTC | #1 
On Fri, Sep 24, 2021 at 05:52:21PM +0800, Xiaoliang Yang wrote:
> Some chips in the ocelot series such as VSC9959 support Per-Stream
> Filtering and Policing(PSFP), which is processing after VCAP blocks.
> We set this block on chain 30000 and set vcap IS2 chain to goto PSFP
> chain if hardware support.
> 
> Signed-off-by: Xiaoliang Yang <xiaoliang.yang_1@nxp.com>
> ---

Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
diff mbox series

Patch

diff --git a/drivers/net/ethernet/mscc/ocelot_flower.c b/drivers/net/ethernet/mscc/ocelot_flower.c
index 8b843d3c9189..ce812194e44c 100644
--- a/drivers/net/ethernet/mscc/ocelot_flower.c
+++ b/drivers/net/ethernet/mscc/ocelot_flower.c
@@ -20,6 +20,9 @@ 
 	(1 * VCAP_BLOCK + (lookup) * VCAP_LOOKUP)
 #define VCAP_IS2_CHAIN(lookup, pag)	\
 	(2 * VCAP_BLOCK + (lookup) * VCAP_LOOKUP + (pag))
+/* PSFP chain and block ID */
+#define PSFP_BLOCK_ID			OCELOT_NUM_VCAP_BLOCKS
+#define OCELOT_PSFP_CHAIN		(3 * VCAP_BLOCK)
 
 static int ocelot_chain_to_block(int chain, bool ingress)
 {
@@ -46,6 +49,9 @@  static int ocelot_chain_to_block(int chain, bool ingress)
 			if (chain == VCAP_IS2_CHAIN(lookup, pag))
 				return VCAP_IS2;
 
+	if (chain == OCELOT_PSFP_CHAIN)
+		return PSFP_BLOCK_ID;
+
 	return -EOPNOTSUPP;
 }
 
@@ -84,7 +90,8 @@  static bool ocelot_is_goto_target_valid(int goto_target, int chain,
 			goto_target == VCAP_IS1_CHAIN(1) ||
 			goto_target == VCAP_IS1_CHAIN(2) ||
 			goto_target == VCAP_IS2_CHAIN(0, 0) ||
-			goto_target == VCAP_IS2_CHAIN(1, 0));
+			goto_target == VCAP_IS2_CHAIN(1, 0) ||
+			goto_target == OCELOT_PSFP_CHAIN);
 
 	if (chain == VCAP_IS1_CHAIN(0))
 		return (goto_target == VCAP_IS1_CHAIN(1));
@@ -111,7 +118,11 @@  static bool ocelot_is_goto_target_valid(int goto_target, int chain,
 		if (chain == VCAP_IS2_CHAIN(0, pag))
 			return (goto_target == VCAP_IS2_CHAIN(1, pag));
 
-	/* VCAP IS2 lookup 1 cannot jump anywhere */
+	/* VCAP IS2 lookup 1 can goto to PSFP block if hardware support */
+	for (pag = 0; pag < VCAP_IS2_NUM_PAG; pag++)
+		if (chain == VCAP_IS2_CHAIN(1, pag))
+			return (goto_target == OCELOT_PSFP_CHAIN);
+
 	return false;
 }
 
@@ -353,7 +364,7 @@  static int ocelot_flower_parse_action(struct ocelot *ocelot, int port,
 
 	if (filter->goto_target == -1) {
 		if ((filter->block_id == VCAP_IS2 && filter->lookup == 1) ||
-		    chain == 0) {
+		    chain == 0 || filter->block_id == PSFP_BLOCK_ID) {
 			allow_missing_goto_target = true;
 		} else {
 			NL_SET_ERR_MSG_MOD(extack, "Missing GOTO action");