net/ice/base: support FDIR for GTPU QFI field

Add GTPU qfi field support for flow director. Note that for GTPU pkt,
only qfi field (6 bits) can be set for FD. The supported GTPU pkts are
defined as:
ICE_FLTR_PTYPE_NONF_IPV4_GTPU_IPV4_UDP,
ICE_FLTR_PTYPE_NONF_IPV4_GTPU_IPV4_TCP,
ICE_FLTR_PTYPE_NONF_IPV4_GTPU_IPV4_ICMP,
ICE_FLTR_PTYPE_NONF_IPV4_GTPU_IPV4_OTHER (FRAG and PAY belong to this)

Signed-off-by: Junfeng Guo <junfeng.guo@intel.com>
Signed-off-by: Paul M Stillwell Jr <paul.m.stillwell.jr@intel.com>
Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
Acked-by: Qiming Yang <qiming.yang@intel.com>

diff --git a/drivers/net/ice/base/ice_fdir.c b/drivers/net/ice/base/ice_fdir.c
index 3a2175b..219588c 100644 (file)
--- a/drivers/net/ice/base/ice_fdir.c
+++ b/drivers/net/ice/base/ice_fdir.c
@@ -42,6 +42,66 @@ static const u8 ice_fdir_ipv4_pkt[] = {
        0x00, 0x00
 };
 
+static const u8 ice_fdir_udp4_gtpu4_pkt[] = {
+       0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+       0x00, 0x00, 0x00, 0x00, 0x08, 0x00, 0x45, 0x00,
+       0x00, 0x4c, 0x00, 0x00, 0x40, 0x00, 0x40, 0x11,
+       0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+       0x00, 0x00, 0x08, 0x68, 0x08, 0x68, 0x00, 0x00,
+       0x00, 0x00, 0x34, 0xff, 0x00, 0x28, 0x00, 0x00,
+       0x00, 0x00, 0x00, 0x00, 0x00, 0x85, 0x02, 0x00,
+       0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x45, 0x00,
+       0x00, 0x1c, 0x00, 0x00, 0x40, 0x00, 0x40, 0x11,
+       0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+       0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+       0x00, 0x00,
+};
+
+static const u8 ice_fdir_tcp4_gtpu4_pkt[] = {
+       0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+       0x00, 0x00, 0x00, 0x00, 0x08, 0x00, 0x45, 0x00,
+       0x00, 0x58, 0x00, 0x00, 0x40, 0x00, 0x40, 0x11,
+       0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+       0x00, 0x00, 0x08, 0x68, 0x08, 0x68, 0x00, 0x00,
+       0x00, 0x00, 0x34, 0xff, 0x00, 0x28, 0x00, 0x00,
+       0x00, 0x00, 0x00, 0x00, 0x00, 0x85, 0x02, 0x00,
+       0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x45, 0x00,
+       0x00, 0x28, 0x00, 0x00, 0x40, 0x00, 0x40, 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,
+};
+
+static const u8 ice_fdir_icmp4_gtpu4_pkt[] = {
+       0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+       0x00, 0x00, 0x00, 0x00, 0x08, 0x00, 0x45, 0x00,
+       0x00, 0x4c, 0x00, 0x00, 0x40, 0x00, 0x40, 0x11,
+       0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+       0x00, 0x00, 0x08, 0x68, 0x08, 0x68, 0x00, 0x00,
+       0x00, 0x00, 0x34, 0xff, 0x00, 0x28, 0x00, 0x00,
+       0x00, 0x00, 0x00, 0x00, 0x00, 0x85, 0x02, 0x00,
+       0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x45, 0x00,
+       0x00, 0x1c, 0x00, 0x00, 0x40, 0x00, 0x40, 0x01,
+       0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+       0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+       0x00, 0x00,
+};
+
+static const u8 ice_fdir_ipv4_gtpu4_pkt[] = {
+       0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+       0x00, 0x00, 0x00, 0x00, 0x08, 0x00, 0x45, 0x00,
+       0x00, 0x44, 0x00, 0x00, 0x40, 0x00, 0x40, 0x11,
+       0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+       0x00, 0x00, 0x08, 0x68, 0x08, 0x68, 0x00, 0x00,
+       0x00, 0x00, 0x34, 0xff, 0x00, 0x28, 0x00, 0x00,
+       0x00, 0x00, 0x00, 0x00, 0x00, 0x85, 0x02, 0x00,
+       0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x45, 0x00,
+       0x00, 0x14, 0x00, 0x00, 0x40, 0x00, 0x40, 0x00,
+       0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+       0x00, 0x00,
+};
+
 static const u8 ice_fdir_tcpv6_pkt[] = {
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x86, 0xDD, 0x60, 0x00,
@@ -240,6 +300,34 @@ static const struct ice_fdir_base_pkt ice_fdir_pkt[] = {
                sizeof(ice_fdir_ipv4_pkt), ice_fdir_ipv4_pkt,
                sizeof(ice_fdir_ip4_tun_pkt), ice_fdir_ip4_tun_pkt,
        },
+       {
+               ICE_FLTR_PTYPE_NONF_IPV4_GTPU_IPV4_UDP,
+               sizeof(ice_fdir_udp4_gtpu4_pkt),
+               ice_fdir_udp4_gtpu4_pkt,
+               sizeof(ice_fdir_udp4_gtpu4_pkt),
+               ice_fdir_udp4_gtpu4_pkt,
+       },
+       {
+               ICE_FLTR_PTYPE_NONF_IPV4_GTPU_IPV4_TCP,
+               sizeof(ice_fdir_tcp4_gtpu4_pkt),
+               ice_fdir_tcp4_gtpu4_pkt,
+               sizeof(ice_fdir_tcp4_gtpu4_pkt),
+               ice_fdir_tcp4_gtpu4_pkt,
+       },
+       {
+               ICE_FLTR_PTYPE_NONF_IPV4_GTPU_IPV4_ICMP,
+               sizeof(ice_fdir_icmp4_gtpu4_pkt),
+               ice_fdir_icmp4_gtpu4_pkt,
+               sizeof(ice_fdir_icmp4_gtpu4_pkt),
+               ice_fdir_icmp4_gtpu4_pkt,
+       },
+       {
+               ICE_FLTR_PTYPE_NONF_IPV4_GTPU_IPV4_OTHER,
+               sizeof(ice_fdir_ipv4_gtpu4_pkt),
+               ice_fdir_ipv4_gtpu4_pkt,
+               sizeof(ice_fdir_ipv4_gtpu4_pkt),
+               ice_fdir_ipv4_gtpu4_pkt,
+       },
        {
                ICE_FLTR_PTYPE_NONF_IPV6_TCP,
                sizeof(ice_fdir_tcpv6_pkt), ice_fdir_tcpv6_pkt,
@@ -487,6 +575,22 @@ static void ice_pkt_insert_ipv6_addr(u8 *pkt, int offset, __be32 *addr)
                           sizeof(*addr), ICE_NONDMA_TO_NONDMA);
 }
 
+/**
+ * ice_pkt_insert_u6_qfi - insert a u6 value qfi into a memory buffer for gtpu
+ * @pkt: packet buffer
+ * @offset: offset into buffer
+ * @data: 8 bit value to convert and insert into pkt at offset
+ *
+ * This function is designed for inserting qfi (6 bits) for gtpu.
+ */
+static void ice_pkt_insert_u6_qfi(u8 *pkt, int offset, u8 data)
+{
+       u8 ret;
+
+       ret = (data & 0x3F) + (*(pkt + offset) & 0xC0);
+       ice_memcpy(pkt + offset, &ret, sizeof(ret), ICE_NONDMA_TO_NONDMA);
+}
+
 /**
  * ice_pkt_insert_u8 - insert a u8 value into a memory buffer.
  * @pkt: packet buffer
@@ -678,6 +782,13 @@ ice_fdir_get_gen_prgm_pkt(struct ice_hw *hw, struct ice_fdir_fltr *input,
                                  input->ip.v4.proto);
                ice_pkt_insert_mac_addr(loc, input->ext_data.dst_mac);
                break;
+       case ICE_FLTR_PTYPE_NONF_IPV4_GTPU_IPV4_UDP:
+       case ICE_FLTR_PTYPE_NONF_IPV4_GTPU_IPV4_TCP:
+       case ICE_FLTR_PTYPE_NONF_IPV4_GTPU_IPV4_ICMP:
+       case ICE_FLTR_PTYPE_NONF_IPV4_GTPU_IPV4_OTHER:
+               ice_pkt_insert_u6_qfi(loc, ICE_IPV4_GTPU_QFI_OFFSET,
+                                     input->gtpu_data.qfi);
+               break;
        case ICE_FLTR_PTYPE_NONF_IPV6_TCP:
                ice_pkt_insert_ipv6_addr(loc, ICE_IPV6_DST_ADDR_OFFSET,
                                         input->ip.v6.dst_ip);

diff --git a/drivers/net/ice/base/ice_fdir.h b/drivers/net/ice/base/ice_fdir.h
index 007f6dd..22e5bcf 100644 (file)
--- a/drivers/net/ice/base/ice_fdir.h
+++ b/drivers/net/ice/base/ice_fdir.h
@@ -87,6 +87,7 @@ enum ice_status ice_clear_pf_fd_table(struct ice_hw *hw);
 #define ICE_IPV6_TC_OFFSET             14
 #define ICE_IPV6_HLIM_OFFSET           21
 #define ICE_IPV6_PROTO_OFFSET          20
+#define ICE_IPV4_GTPU_QFI_OFFSET       56
 
 #define ICE_FDIR_MAX_FLTRS             16384
 
@@ -146,6 +147,24 @@ struct ice_fdir_v6 {
        u8 hlim;
 };
 
+struct ice_fdir_udp_gtp {
+       u8 flags;
+       u8 msg_type;
+       u16 rsrvd_len;
+       u32 teid;
+       u16 rsrvd_seq_nbr;
+       u8 rsrvd_n_pdu_nbr;
+       u8 rsrvd_next_ext_type;
+       u8 rsvrd_ext_len;
+       u8      pdu_type:4,
+               spare:4;
+       u8      ppp:1,
+               rqi:1,
+               qfi:6;
+       u32 rsvrd;
+       u8 next_ext;
+};
+
 struct ice_fdir_extra {
        u8 dst_mac[ETH_ALEN];   /* dest MAC address */
        u32 usr_def[2];         /* user data */
@@ -162,6 +181,9 @@ struct ice_fdir_fltr {
                struct ice_fdir_v6 v6;
        } ip, mask;
 
+       struct ice_fdir_udp_gtp gtpu_data;
+       struct ice_fdir_udp_gtp gtpu_mask;
+
        struct ice_fdir_extra ext_data;
        struct ice_fdir_extra ext_mask;
 

diff --git a/drivers/net/ice/base/ice_type.h b/drivers/net/ice/base/ice_type.h
index 7d0a4f6..500b884 100644 (file)
--- a/drivers/net/ice/base/ice_type.h
+++ b/drivers/net/ice/base/ice_type.h
@@ -288,6 +288,10 @@ enum ice_fltr_ptype {
        ICE_FLTR_PTYPE_NONF_IPV4_TCP,
        ICE_FLTR_PTYPE_NONF_IPV4_SCTP,
        ICE_FLTR_PTYPE_NONF_IPV4_OTHER,
+       ICE_FLTR_PTYPE_NONF_IPV4_GTPU_IPV4_UDP,
+       ICE_FLTR_PTYPE_NONF_IPV4_GTPU_IPV4_TCP,
+       ICE_FLTR_PTYPE_NONF_IPV4_GTPU_IPV4_ICMP,
+       ICE_FLTR_PTYPE_NONF_IPV4_GTPU_IPV4_OTHER,
        ICE_FLTR_PTYPE_FRAG_IPV4,
        ICE_FLTR_PTYPE_NONF_IPV6_UDP,
        ICE_FLTR_PTYPE_NONF_IPV6_TCP,