linux-kernel - [PATCH net-next 1/5] net: microchip: sparx5: Differentiate IPv4 and IPv6 traffic in keyset config

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Date:   Thu, 27 Oct 2022 16:42:56 +0200
From:   Steen Hegelund <steen.hegelund@...rochip.com>
To:     "David S . Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>
CC:     Steen Hegelund <steen.hegelund@...rochip.com>,
        <UNGLinuxDriver@...rochip.com>,
        Randy Dunlap <rdunlap@...radead.org>,
        "Casper Andersson" <casper.casan@...il.com>,
        Russell King <rmk+kernel@...linux.org.uk>,
        Wan Jiabing <wanjiabing@...o.com>,
        "Nathan Huckleberry" <nhuck@...gle.com>,
        <linux-kernel@...r.kernel.org>, <netdev@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        "Daniel Machon" <daniel.machon@...rochip.com>,
        Horatiu Vultur <horatiu.vultur@...rochip.com>,
        Lars Povlsen <lars.povlsen@...rochip.com>
Subject: [PATCH net-next 1/5] net: microchip: sparx5: Differentiate IPv4 and IPv6 traffic in keyset config

This changes the port keyset configuration for Sparx5 IS2 so that

- IPv4 generates a IP4_TCP_UDP keyset for IPv4 TCP/UDP frames and a
  IP4_OTHER keyset for other IPv4 frames (both UC and MC)
- IPv6 generates a IP_7TUPLE keyset (both UC and MC)

ARP and non-IP traffic continues to generate the MAC_ETYPE keyset

Signed-off-by: Steen Hegelund <steen.hegelund@...rochip.com>
---
 .../microchip/sparx5/sparx5_vcap_impl.c       | 21 ++++++++++++-------
 1 file changed, 14 insertions(+), 7 deletions(-)

diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_vcap_impl.c b/drivers/net/ethernet/microchip/sparx5/sparx5_vcap_impl.c
index 50153264179e..e4428d55af2b 100644
--- a/drivers/net/ethernet/microchip/sparx5/sparx5_vcap_impl.c
+++ b/drivers/net/ethernet/microchip/sparx5/sparx5_vcap_impl.c
@@ -21,6 +21,14 @@
 #define STREAMSIZE (64 * 4)  /* bytes in the VCAP cache area */
 
 #define SPARX5_IS2_LOOKUPS 4
+#define VCAP_IS2_KEYSEL(_ena, _noneth, _v4_mc, _v4_uc, _v6_mc, _v6_uc, _arp) \
+	(ANA_ACL_VCAP_S2_KEY_SEL_KEY_SEL_ENA_SET(_ena) | \
+	 ANA_ACL_VCAP_S2_KEY_SEL_NON_ETH_KEY_SEL_SET(_noneth) | \
+	 ANA_ACL_VCAP_S2_KEY_SEL_IP4_MC_KEY_SEL_SET(_v4_mc) | \
+	 ANA_ACL_VCAP_S2_KEY_SEL_IP4_UC_KEY_SEL_SET(_v4_uc) | \
+	 ANA_ACL_VCAP_S2_KEY_SEL_IP6_MC_KEY_SEL_SET(_v6_mc) | \
+	 ANA_ACL_VCAP_S2_KEY_SEL_IP6_UC_KEY_SEL_SET(_v6_uc) | \
+	 ANA_ACL_VCAP_S2_KEY_SEL_ARP_KEY_SEL_SET(_arp))
 
 /* IS2 port keyset selection control */
 
@@ -368,13 +376,12 @@ static void sparx5_vcap_port_key_selection(struct sparx5 *sparx5,
 	/* all traffic types generate the MAC_ETYPE keyset for now in all
 	 * lookups on all ports
 	 */
-	keysel = ANA_ACL_VCAP_S2_KEY_SEL_KEY_SEL_ENA_SET(true) |
-		ANA_ACL_VCAP_S2_KEY_SEL_NON_ETH_KEY_SEL_SET(VCAP_IS2_PS_NONETH_MAC_ETYPE) |
-		ANA_ACL_VCAP_S2_KEY_SEL_IP4_MC_KEY_SEL_SET(VCAP_IS2_PS_IPV4_MC_MAC_ETYPE) |
-		ANA_ACL_VCAP_S2_KEY_SEL_IP4_UC_KEY_SEL_SET(VCAP_IS2_PS_IPV4_UC_MAC_ETYPE) |
-		ANA_ACL_VCAP_S2_KEY_SEL_IP6_MC_KEY_SEL_SET(VCAP_IS2_PS_IPV6_MC_MAC_ETYPE) |
-		ANA_ACL_VCAP_S2_KEY_SEL_IP6_UC_KEY_SEL_SET(VCAP_IS2_PS_IPV6_UC_MAC_ETYPE) |
-		ANA_ACL_VCAP_S2_KEY_SEL_ARP_KEY_SEL_SET(VCAP_IS2_PS_ARP_MAC_ETYPE);
+	keysel = VCAP_IS2_KEYSEL(true, VCAP_IS2_PS_NONETH_MAC_ETYPE,
+				 VCAP_IS2_PS_IPV4_MC_IP4_TCP_UDP_OTHER,
+				 VCAP_IS2_PS_IPV4_UC_IP4_TCP_UDP_OTHER,
+				 VCAP_IS2_PS_IPV6_MC_IP_7TUPLE,
+				 VCAP_IS2_PS_IPV6_UC_IP_7TUPLE,
+				 VCAP_IS2_PS_ARP_MAC_ETYPE);
 	for (lookup = 0; lookup < admin->lookups; ++lookup) {
 		for (portno = 0; portno < SPX5_PORTS; ++portno) {
 			spx5_wr(keysel, sparx5,
-- 
2.38.1