From bd4d9a89dbc1392bb9f0c1a1e78a026f8442c13c Mon Sep 17 00:00:00 2001
From: Qi Zhang <qi.z.zhang@intel.com>
Date: Tue, 15 Dec 2020 11:05:01 +0800
Subject: [PATCH] net/ice/base: add GTP filtering via advanced switch filter

Add support to enable GTP filtering using advanced switch filter mechanism.
Example of GTP filter criteria:
  Outer UDP + GTP (Optional) + Inner IPv4[6] + Inner TCP/UDP

Signed-off-by: Kiran Patil <kiran.patil@intel.com>
Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
Acked-by: Qiming Yang <qiming.yang@intel.com>
---
 drivers/net/ice/base/ice_flex_type.h |   1 +
 drivers/net/ice/base/ice_switch.c    | 407 +++++++++++++++++++++++++++
 2 files changed, 408 insertions(+)

diff --git a/drivers/net/ice/base/ice_flex_type.h b/drivers/net/ice/base/ice_flex_type.h
index 1dd57baccd..7d0204fa50 100644
--- a/drivers/net/ice/base/ice_flex_type.h
+++ b/drivers/net/ice/base/ice_flex_type.h
@@ -516,6 +516,7 @@ struct ice_pkg_enum {
 enum ice_tunnel_type {
 	TNL_VXLAN = 0,
 	TNL_GENEVE,
+	TNL_GTP,
 	TNL_LAST = 0xFF,
 	TNL_ALL = 0xFF,
 };
diff --git a/drivers/net/ice/base/ice_switch.c b/drivers/net/ice/base/ice_switch.c
index dc55d7e3ce..45c44ca256 100644
--- a/drivers/net/ice/base/ice_switch.c
+++ b/drivers/net/ice/base/ice_switch.c
@@ -504,6 +504,413 @@ static const u8 dummy_vlan_udp_ipv6_packet[] = {
 	0x00, 0x00, /* 2 bytes for 4 byte alignment */
 };
 
+/* Outer IPv4 + Outer UDP + GTP + Inner IPv4 + Inner TCP */
+static const struct ice_dummy_pkt_offsets dummy_ipv4_gtpu_ipv4_tcp_packet_offsets[] = {
+	{ ICE_MAC_OFOS,		0 },
+	{ ICE_IPV4_OFOS,	14 },
+	{ ICE_UDP_OF,		34 },
+	{ ICE_GTP,		42 },
+	{ ICE_IPV4_IL,		62 },
+	{ ICE_TCP_IL,		82 },
+	{ ICE_PROTOCOL_LAST,	0 },
+};
+
+static const u8 dummy_ipv4_gtpu_ipv4_tcp_packet[] = {
+	0x00, 0x00, 0x00, 0x00, /* Ethernet 0 */
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x08, 0x00,
+
+	0x45, 0x00, 0x00, 0x58, /* IP 14 */
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x11, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+
+	0x00, 0x00, 0x08, 0x68, /* UDP 34 */
+	0x00, 0x44, 0x00, 0x00,
+
+	0x34, 0xff, 0x00, 0x34, /* GTP-U Header 42 */
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x85,
+
+	0x02, 0x00, 0x00, 0x00, /* GTP_PDUSession_ExtensionHeader 54 */
+	0x00, 0x00, 0x00, 0x00,
+
+	0x45, 0x00, 0x00, 0x28, /* IP 62 */
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x06, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+
+	0x00, 0x00, 0x00, 0x00, /* TCP 82 */
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x50, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+
+	0x00, 0x00, /* 2 bytes for 4 byte alignment */
+};
+
+/* Outer IPv4 + Outer UDP + GTP + Inner IPv4 + Inner UDP */
+static const struct ice_dummy_pkt_offsets dummy_ipv4_gtpu_ipv4_udp_packet_offsets[] = {
+	{ ICE_MAC_OFOS,		0 },
+	{ ICE_IPV4_OFOS,	14 },
+	{ ICE_UDP_OF,		34 },
+	{ ICE_GTP,		42 },
+	{ ICE_IPV4_IL,		62 },
+	{ ICE_UDP_ILOS,		82 },
+	{ ICE_PROTOCOL_LAST,	0 },
+};
+
+static const u8 dummy_ipv4_gtpu_ipv4_udp_packet[] = {
+	0x00, 0x00, 0x00, 0x00, /* Ethernet 0 */
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x08, 0x00,
+
+	0x45, 0x00, 0x00, 0x4c, /* IP 14 */
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x11, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+
+	0x00, 0x00, 0x08, 0x68, /* UDP 34 */
+	0x00, 0x38, 0x00, 0x00,
+
+	0x34, 0xff, 0x00, 0x28, /* GTP-U Header 42 */
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x85,
+
+	0x02, 0x00, 0x00, 0x00, /* GTP_PDUSession_ExtensionHeader 54 */
+	0x00, 0x00, 0x00, 0x00,
+
+	0x45, 0x00, 0x00, 0x1c, /* IP 62 */
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x11, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+
+	0x00, 0x00, 0x00, 0x00, /* UDP 82 */
+	0x00, 0x08, 0x00, 0x00,
+
+	0x00, 0x00, /* 2 bytes for 4 byte alignment */
+};
+
+/* Outer IPv6 + Outer UDP + GTP + Inner IPv4 + Inner TCP */
+static const struct ice_dummy_pkt_offsets dummy_ipv4_gtpu_ipv6_tcp_packet_offsets[] = {
+	{ ICE_MAC_OFOS,		0 },
+	{ ICE_IPV4_OFOS,	14 },
+	{ ICE_UDP_OF,		34 },
+	{ ICE_GTP,		42 },
+	{ ICE_IPV6_IL,		62 },
+	{ ICE_TCP_IL,		102 },
+	{ ICE_PROTOCOL_LAST,	0 },
+};
+
+static const u8 dummy_ipv4_gtpu_ipv6_tcp_packet[] = {
+	0x00, 0x00, 0x00, 0x00, /* Ethernet 0 */
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x08, 0x00,
+
+	0x45, 0x00, 0x00, 0x6c, /* IP 14 */
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x11, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+
+	0x00, 0x00, 0x08, 0x68, /* UDP 34 */
+	0x00, 0x58, 0x00, 0x00,
+
+	0x34, 0xff, 0x00, 0x48, /* GTP-U Header 42 */
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x85,
+
+	0x02, 0x00, 0x00, 0x00, /* GTP_PDUSession_ExtensionHeader 54 */
+	0x00, 0x00, 0x00, 0x00,
+
+	0x60, 0x00, 0x00, 0x00, /* IPv6 62 */
+	0x00, 0x14, 0x06, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+
+	0x00, 0x00, 0x00, 0x00, /* TCP 102 */
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x50, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+
+	0x00, 0x00, /* 2 bytes for 4 byte alignment */
+};
+
+static const struct ice_dummy_pkt_offsets dummy_ipv4_gtpu_ipv6_udp_packet_offsets[] = {
+	{ ICE_MAC_OFOS,		0 },
+	{ ICE_IPV4_OFOS,	14 },
+	{ ICE_UDP_OF,		34 },
+	{ ICE_GTP,		42 },
+	{ ICE_IPV6_IL,		62 },
+	{ ICE_UDP_ILOS,		102 },
+	{ ICE_PROTOCOL_LAST,	0 },
+};
+
+static const u8 dummy_ipv4_gtpu_ipv6_udp_packet[] = {
+	0x00, 0x00, 0x00, 0x00, /* Ethernet 0 */
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x08, 0x00,
+
+	0x45, 0x00, 0x00, 0x60, /* IP 14 */
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x11, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+
+	0x00, 0x00, 0x08, 0x68, /* UDP 34 */
+	0x00, 0x4c, 0x00, 0x00,
+
+	0x34, 0xff, 0x00, 0x3c, /* GTP-U Header 42 */
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x85,
+
+	0x02, 0x00, 0x00, 0x00, /* GTP_PDUSession_ExtensionHeader 54 */
+	0x00, 0x00, 0x00, 0x00,
+
+	0x60, 0x00, 0x00, 0x00, /* IPv6 62 */
+	0x00, 0x08, 0x11, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+
+	0x00, 0x00, 0x00, 0x00, /* UDP 102 */
+	0x00, 0x08, 0x00, 0x00,
+
+	0x00, 0x00, /* 2 bytes for 4 byte alignment */
+};
+
+static const struct ice_dummy_pkt_offsets dummy_ipv6_gtpu_ipv4_tcp_packet_offsets[] = {
+	{ ICE_MAC_OFOS,		0 },
+	{ ICE_IPV6_OFOS,	14 },
+	{ ICE_UDP_OF,		54 },
+	{ ICE_GTP,		62 },
+	{ ICE_IPV4_IL,		82 },
+	{ ICE_TCP_IL,		102 },
+	{ ICE_PROTOCOL_LAST,	0 },
+};
+
+static const u8 dummy_ipv6_gtpu_ipv4_tcp_packet[] = {
+	0x00, 0x00, 0x00, 0x00, /* Ethernet 0 */
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x86, 0xdd,
+
+	0x60, 0x00, 0x00, 0x00, /* IPv6 14 */
+	0x00, 0x44, 0x11, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+
+	0x00, 0x00, 0x08, 0x68, /* UDP 54 */
+	0x00, 0x44, 0x00, 0x00,
+
+	0x34, 0xff, 0x00, 0x34, /* GTP-U Header 62 */
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x85,
+
+	0x02, 0x00, 0x00, 0x00, /* GTP_PDUSession_ExtensionHeader 74 */
+	0x00, 0x00, 0x00, 0x00,
+
+	0x45, 0x00, 0x00, 0x28, /* IP 82 */
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x06, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+
+	0x00, 0x00, 0x00, 0x00, /* TCP 102 */
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x50, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+
+	0x00, 0x00, /* 2 bytes for 4 byte alignment */
+};
+
+static const struct ice_dummy_pkt_offsets dummy_ipv6_gtpu_ipv4_udp_packet_offsets[] = {
+	{ ICE_MAC_OFOS,		0 },
+	{ ICE_IPV6_OFOS,	14 },
+	{ ICE_UDP_OF,		54 },
+	{ ICE_GTP,		62 },
+	{ ICE_IPV4_IL,		82 },
+	{ ICE_UDP_ILOS,		102 },
+	{ ICE_PROTOCOL_LAST,	0 },
+};
+
+static const u8 dummy_ipv6_gtpu_ipv4_udp_packet[] = {
+	0x00, 0x00, 0x00, 0x00, /* Ethernet 0 */
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x86, 0xdd,
+
+	0x60, 0x00, 0x00, 0x00, /* IPv6 14 */
+	0x00, 0x38, 0x11, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+
+	0x00, 0x00, 0x08, 0x68, /* UDP 54 */
+	0x00, 0x38, 0x00, 0x00,
+
+	0x34, 0xff, 0x00, 0x28, /* GTP-U Header 62 */
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x85,
+
+	0x02, 0x00, 0x00, 0x00, /* GTP_PDUSession_ExtensionHeader 74 */
+	0x00, 0x00, 0x00, 0x00,
+
+	0x45, 0x00, 0x00, 0x1c, /* IP 82 */
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x11, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+
+	0x00, 0x00, 0x00, 0x00, /* UDP 102 */
+	0x00, 0x08, 0x00, 0x00,
+
+	0x00, 0x00, /* 2 bytes for 4 byte alignment */
+};
+
+static const struct ice_dummy_pkt_offsets dummy_ipv6_gtpu_ipv6_tcp_packet_offsets[] = {
+	{ ICE_MAC_OFOS,		0 },
+	{ ICE_IPV6_OFOS,	14 },
+	{ ICE_UDP_OF,		54 },
+	{ ICE_GTP,		62 },
+	{ ICE_IPV6_IL,		82 },
+	{ ICE_TCP_IL,		102 },
+	{ ICE_PROTOCOL_LAST,	0 },
+};
+
+static const u8 dummy_ipv6_gtpu_ipv6_tcp_packet[] = {
+	0x00, 0x00, 0x00, 0x00, /* Ethernet 0 */
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x86, 0xdd,
+
+	0x60, 0x00, 0x00, 0x00, /* IPv6 14 */
+	0x00, 0x58, 0x11, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+
+	0x00, 0x00, 0x08, 0x68, /* UDP 54 */
+	0x00, 0x58, 0x00, 0x00,
+
+	0x34, 0xff, 0x00, 0x48, /* GTP-U Header 62 */
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x85,
+
+	0x02, 0x00, 0x00, 0x00, /* GTP_PDUSession_ExtensionHeader 74 */
+	0x00, 0x00, 0x00, 0x00,
+
+	0x60, 0x00, 0x00, 0x00, /* IPv6 82 */
+	0x00, 0x14, 0x06, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+
+	0x00, 0x00, 0x00, 0x00, /* TCP 122 */
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x50, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+
+	0x00, 0x00, /* 2 bytes for 4 byte alignment */
+};
+
+static const struct ice_dummy_pkt_offsets dummy_ipv6_gtpu_ipv6_udp_packet_offsets[] = {
+	{ ICE_MAC_OFOS,		0 },
+	{ ICE_IPV6_OFOS,	14 },
+	{ ICE_UDP_OF,		54 },
+	{ ICE_GTP,		62 },
+	{ ICE_IPV6_IL,		82 },
+	{ ICE_UDP_ILOS,		102 },
+	{ ICE_PROTOCOL_LAST,	0 },
+};
+
+static const u8 dummy_ipv6_gtpu_ipv6_udp_packet[] = {
+	0x00, 0x00, 0x00, 0x00, /* Ethernet 0 */
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x86, 0xdd,
+
+	0x60, 0x00, 0x00, 0x00, /* IPv6 14 */
+	0x00, 0x4c, 0x11, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+
+	0x00, 0x00, 0x08, 0x68, /* UDP 54 */
+	0x00, 0x4c, 0x00, 0x00,
+
+	0x34, 0xff, 0x00, 0x3c, /* GTP-U Header 62 */
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x85,
+
+	0x02, 0x00, 0x00, 0x00, /* GTP_PDUSession_ExtensionHeader 74 */
+	0x00, 0x00, 0x00, 0x00,
+
+	0x60, 0x00, 0x00, 0x00, /* IPv6 82 */
+	0x00, 0x08, 0x11, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+
+	0x00, 0x00, 0x00, 0x00, /* UDP 122 */
+	0x00, 0x08, 0x00, 0x00,
+
+	0x00, 0x00, /* 2 bytes for 4 byte alignment */
+};
+
 static const struct ice_dummy_pkt_offsets dummy_udp_gtp_packet_offsets[] = {
 	{ ICE_MAC_OFOS,		0 },
 	{ ICE_IPV4_OFOS,	14 },
-- 
2.20.1