New FDIR parsing are added to handle the fragmented IPv4/IPv6 packet.

Signed-off-by: Jeff Guo <jia....@intel.com>
---
 drivers/net/ice/ice_fdir_filter.c | 96 +++++++++++++++++++++++++++----
 1 file changed, 85 insertions(+), 11 deletions(-)

diff --git a/drivers/net/ice/ice_fdir_filter.c 
b/drivers/net/ice/ice_fdir_filter.c
index 3af5812660..3504d3c6c2 100644
--- a/drivers/net/ice/ice_fdir_filter.c
+++ b/drivers/net/ice/ice_fdir_filter.c
@@ -24,7 +24,7 @@
 #define ICE_FDIR_INSET_ETH_IPV4 (\
        ICE_FDIR_INSET_ETH | \
        ICE_INSET_IPV4_SRC | ICE_INSET_IPV4_DST | ICE_INSET_IPV4_TOS | \
-       ICE_INSET_IPV4_TTL | ICE_INSET_IPV4_PROTO)
+       ICE_INSET_IPV4_TTL | ICE_INSET_IPV4_PROTO | ICE_INSET_IPV4_PKID)
 
 #define ICE_FDIR_INSET_ETH_IPV4_UDP (\
        ICE_FDIR_INSET_ETH_IPV4 | \
@@ -41,7 +41,8 @@
 #define ICE_FDIR_INSET_ETH_IPV6 (\
        ICE_INSET_DMAC | \
        ICE_INSET_IPV6_SRC | ICE_INSET_IPV6_DST | ICE_INSET_IPV6_TC | \
-       ICE_INSET_IPV6_HOP_LIMIT | ICE_INSET_IPV6_NEXT_HDR)
+       ICE_INSET_IPV6_HOP_LIMIT | ICE_INSET_IPV6_NEXT_HDR | \
+       ICE_INSET_IPV6_PKID)
 
 #define ICE_FDIR_INSET_ETH_IPV6_UDP (\
        ICE_FDIR_INSET_ETH_IPV6 | \
@@ -56,7 +57,8 @@
        ICE_INSET_SCTP_SRC_PORT | ICE_INSET_SCTP_DST_PORT)
 
 #define ICE_FDIR_INSET_IPV4 (\
-       ICE_INSET_IPV4_SRC | ICE_INSET_IPV4_DST)
+       ICE_INSET_IPV4_SRC | ICE_INSET_IPV4_DST | \
+       ICE_INSET_IPV4_PKID)
 
 #define ICE_FDIR_INSET_IPV4_TCP (\
        ICE_FDIR_INSET_IPV4 | \
@@ -72,7 +74,8 @@
 
 #define ICE_FDIR_INSET_ETH_IPV4_VXLAN (\
        ICE_FDIR_INSET_ETH | \
-       ICE_INSET_IPV4_SRC | ICE_INSET_IPV4_DST)
+       ICE_INSET_IPV4_SRC | ICE_INSET_IPV4_DST | \
+       ICE_INSET_IPV4_PKID)
 
 #define ICE_FDIR_INSET_IPV4_GTPU (\
        ICE_INSET_IPV4_SRC | ICE_INSET_IPV4_DST | ICE_INSET_GTPU_TEID)
@@ -95,6 +98,7 @@ static struct ice_pattern_match_item ice_fdir_pattern_list[] 
= {
        {pattern_eth_ipv4_tcp,                          
ICE_FDIR_INSET_ETH_IPV4_TCP,    ICE_INSET_NONE,                 ICE_INSET_NONE},
        {pattern_eth_ipv4_sctp,                         
ICE_FDIR_INSET_ETH_IPV4_SCTP,   ICE_INSET_NONE,                 ICE_INSET_NONE},
        {pattern_eth_ipv6,                              
ICE_FDIR_INSET_ETH_IPV6,        ICE_INSET_NONE,                 ICE_INSET_NONE},
+       {pattern_eth_ipv6_frag_ext,                     
ICE_FDIR_INSET_ETH_IPV6,        ICE_INSET_NONE,                 ICE_INSET_NONE},
        {pattern_eth_ipv6_udp,                          
ICE_FDIR_INSET_ETH_IPV6_UDP,    ICE_INSET_NONE,                 ICE_INSET_NONE},
        {pattern_eth_ipv6_tcp,                          
ICE_FDIR_INSET_ETH_IPV6_TCP,    ICE_INSET_NONE,                 ICE_INSET_NONE},
        {pattern_eth_ipv6_sctp,                         
ICE_FDIR_INSET_ETH_IPV6_SCTP,   ICE_INSET_NONE,                 ICE_INSET_NONE},
@@ -882,11 +886,13 @@ ice_fdir_input_set_parse(uint64_t inset, enum 
ice_flow_field *field)
                {ICE_INSET_IPV4_TOS, ICE_FLOW_FIELD_IDX_IPV4_DSCP},
                {ICE_INSET_IPV4_TTL, ICE_FLOW_FIELD_IDX_IPV4_TTL},
                {ICE_INSET_IPV4_PROTO, ICE_FLOW_FIELD_IDX_IPV4_PROT},
+               {ICE_INSET_IPV4_PKID, ICE_FLOW_FIELD_IDX_IPV4_ID},
                {ICE_INSET_IPV6_SRC, ICE_FLOW_FIELD_IDX_IPV6_SA},
                {ICE_INSET_IPV6_DST, ICE_FLOW_FIELD_IDX_IPV6_DA},
                {ICE_INSET_IPV6_TC, ICE_FLOW_FIELD_IDX_IPV6_DSCP},
                {ICE_INSET_IPV6_NEXT_HDR, ICE_FLOW_FIELD_IDX_IPV6_PROT},
                {ICE_INSET_IPV6_HOP_LIMIT, ICE_FLOW_FIELD_IDX_IPV6_TTL},
+               {ICE_INSET_IPV6_PKID, ICE_FLOW_FIELD_IDX_IPV6_ID},
                {ICE_INSET_TCP_SRC_PORT, ICE_FLOW_FIELD_IDX_TCP_SRC_PORT},
                {ICE_INSET_TCP_DST_PORT, ICE_FLOW_FIELD_IDX_TCP_DST_PORT},
                {ICE_INSET_UDP_SRC_PORT, ICE_FLOW_FIELD_IDX_UDP_SRC_PORT},
@@ -935,6 +941,10 @@ ice_fdir_input_set_hdrs(enum ice_fltr_ptype flow, struct 
ice_flow_seg_info *seg)
                ICE_FLOW_SET_HDRS(seg, ICE_FLOW_SEG_HDR_IPV4 |
                                  ICE_FLOW_SEG_HDR_IPV_OTHER);
                break;
+       case ICE_FLTR_PTYPE_FRAG_IPV4:
+               ICE_FLOW_SET_HDRS(seg, ICE_FLOW_SEG_HDR_IPV4 |
+                                 ICE_FLOW_SEG_HDR_IPV_FRAG);
+               break;
        case ICE_FLTR_PTYPE_NONF_IPV6_UDP:
                ICE_FLOW_SET_HDRS(seg, ICE_FLOW_SEG_HDR_UDP |
                                  ICE_FLOW_SEG_HDR_IPV6 |
@@ -951,6 +961,10 @@ ice_fdir_input_set_hdrs(enum ice_fltr_ptype flow, struct 
ice_flow_seg_info *seg)
                                  ICE_FLOW_SEG_HDR_IPV_OTHER);
                break;
        case ICE_FLTR_PTYPE_NONF_IPV6_OTHER:
+               ICE_FLOW_SET_HDRS(seg, ICE_FLOW_SEG_HDR_IPV6 |
+                                 ICE_FLOW_SEG_HDR_IPV_FRAG);
+               break;
+       case ICE_FLTR_PTYPE_FRAG_IPV6:
                ICE_FLOW_SET_HDRS(seg, ICE_FLOW_SEG_HDR_IPV6 |
                                  ICE_FLOW_SEG_HDR_IPV_OTHER);
                break;
@@ -1592,8 +1606,10 @@ ice_fdir_parse_pattern(__rte_unused struct ice_adapter 
*ad,
        enum rte_flow_item_type l3 = RTE_FLOW_ITEM_TYPE_END;
        enum ice_fdir_tunnel_type tunnel_type = ICE_FDIR_TUNNEL_TYPE_NONE;
        const struct rte_flow_item_eth *eth_spec, *eth_mask;
-       const struct rte_flow_item_ipv4 *ipv4_spec, *ipv4_mask;
+       const struct rte_flow_item_ipv4 *ipv4_spec, *ipv4_last, *ipv4_mask;
        const struct rte_flow_item_ipv6 *ipv6_spec, *ipv6_mask;
+       const struct rte_flow_item_ipv6_frag_ext *ipv6_frag_spec,
+                                       *ipv6_frag_last, *ipv6_frag_mask;
        const struct rte_flow_item_tcp *tcp_spec, *tcp_mask;
        const struct rte_flow_item_udp *udp_spec, *udp_mask;
        const struct rte_flow_item_sctp *sctp_spec, *sctp_mask;
@@ -1615,6 +1631,7 @@ ice_fdir_parse_pattern(__rte_unused struct ice_adapter 
*ad,
        struct ice_fdir_extra *p_ext_data;
        struct ice_fdir_v4 *p_v4 = NULL;
        struct ice_fdir_v6 *p_v6 = NULL;
+       bool spec_all_pid = false;
 
        for (item = pattern; item->type != RTE_FLOW_ITEM_TYPE_END; item++) {
                if (item->type == RTE_FLOW_ITEM_TYPE_VXLAN)
@@ -1632,13 +1649,14 @@ ice_fdir_parse_pattern(__rte_unused struct ice_adapter 
*ad,
         * flow. input_set_i is used for inner part.
         */
        for (item = pattern; item->type != RTE_FLOW_ITEM_TYPE_END; item++) {
-               if (item->last) {
+               if (item->last && (item_type != RTE_FLOW_ITEM_TYPE_IPV4 ||
+                                  item_type !=
+                                  RTE_FLOW_ITEM_TYPE_IPV6_FRAG_EXT)) {
                        rte_flow_error_set(error, EINVAL,
-                                          RTE_FLOW_ERROR_TYPE_ITEM,
-                                          item,
+                                          RTE_FLOW_ERROR_TYPE_ITEM, item,
                                           "Not support range");
-                       return -rte_errno;
                }
+
                item_type = item->type;
 
                input_set = (tunnel_type && !is_outer) ?
@@ -1689,6 +1707,7 @@ ice_fdir_parse_pattern(__rte_unused struct ice_adapter 
*ad,
                        flow_type = ICE_FLTR_PTYPE_NONF_IPV4_OTHER;
                        l3 = RTE_FLOW_ITEM_TYPE_IPV4;
                        ipv4_spec = item->spec;
+                       ipv4_last = item->last;
                        ipv4_mask = item->mask;
                        p_v4 = (tunnel_type && is_outer) ?
                               &filter->input.ip_outer.v4 :
@@ -1700,8 +1719,6 @@ ice_fdir_parse_pattern(__rte_unused struct ice_adapter 
*ad,
                        /* Check IPv4 mask and update input set */
                        if (ipv4_mask->hdr.version_ihl ||
                            ipv4_mask->hdr.total_length ||
-                           ipv4_mask->hdr.packet_id ||
-                           ipv4_mask->hdr.fragment_offset ||
                            ipv4_mask->hdr.hdr_checksum) {
                                rte_flow_error_set(error, EINVAL,
                                                   RTE_FLOW_ERROR_TYPE_ITEM,
@@ -1710,6 +1727,20 @@ ice_fdir_parse_pattern(__rte_unused struct ice_adapter 
*ad,
                                return -rte_errno;
                        }
 
+                       if (ipv4_last->hdr.version_ihl ||
+                           ipv4_last->hdr.type_of_service ||
+                           ipv4_last->hdr.time_to_live ||
+                           ipv4_last->hdr.total_length |
+                           ipv4_last->hdr.next_proto_id ||
+                           ipv4_last->hdr.hdr_checksum ||
+                           ipv4_last->hdr.src_addr ||
+                           ipv4_last->hdr.dst_addr) {
+                               rte_flow_error_set(error, EINVAL,
+                                                  RTE_FLOW_ERROR_TYPE_ITEM,
+                                                  item, "Invalid IPv4 last.");
+                               return -rte_errno;
+                       }
+
                        if (ipv4_mask->hdr.dst_addr == UINT32_MAX)
                                *input_set |= ICE_INSET_IPV4_DST;
                        if (ipv4_mask->hdr.src_addr == UINT32_MAX)
@@ -1726,6 +1757,24 @@ ice_fdir_parse_pattern(__rte_unused struct ice_adapter 
*ad,
                        p_v4->ttl = ipv4_spec->hdr.time_to_live;
                        p_v4->proto = ipv4_spec->hdr.next_proto_id;
                        p_v4->tos = ipv4_spec->hdr.type_of_service;
+
+                       if (ipv4_mask->hdr.packet_id == UINT16_MAX) {
+                               if (ipv4_last &&
+                                   ipv4_spec->hdr.packet_id == 0 &&
+                                   ipv4_last->hdr.packet_id == 0xffff)
+                                       spec_all_pid = true;
+
+                               /* All IPv4 fragment packet has the same
+                                * ethertype, if the spec is for all invalid
+                                * packet id, set ethertype into input set.
+                                */
+                               *input_set |= spec_all_pid ?
+                                               ICE_INSET_ETHERTYPE :
+                                               ICE_INSET_IPV4_PKID;
+                       }
+
+                       if (ipv4_mask->hdr.fragment_offset == UINT16_MAX)
+                               flow_type = ICE_FLTR_PTYPE_FRAG_IPV4;
                        break;
                case RTE_FLOW_ITEM_TYPE_IPV6:
                        flow_type = ICE_FLTR_PTYPE_NONF_IPV6_OTHER;
@@ -1771,6 +1820,31 @@ ice_fdir_parse_pattern(__rte_unused struct ice_adapter 
*ad,
                        p_v6->proto = ipv6_spec->hdr.proto;
                        p_v6->hlim = ipv6_spec->hdr.hop_limits;
                        break;
+               case RTE_FLOW_ITEM_TYPE_IPV6_FRAG_EXT:
+                       l3 = RTE_FLOW_ITEM_TYPE_IPV6_FRAG_EXT;
+                       flow_type = ICE_FLTR_PTYPE_FRAG_IPV6;
+                       ipv6_frag_spec = item->spec;
+                       ipv6_frag_last = item->last;
+                       ipv6_frag_mask = item->mask;
+
+                       if (!(ipv6_frag_spec && ipv6_frag_mask))
+                               break;
+
+                       if (ipv6_frag_last &&
+                           ipv6_frag_spec->hdr.id == 0 &&
+                           ipv6_frag_last->hdr.id ==
+                           0xffffffff)
+                               spec_all_pid = true;
+
+                       /* All IPv6 fragment packet has the same ethertype, if
+                        * the spec is for all invalid packet id, set ethertype
+                        * into input set.
+                        */
+                       *input_set |= spec_all_pid ?
+                                       ICE_INSET_ETHERTYPE :
+                                       ICE_INSET_IPV6_PKID;
+                       break;
+
                case RTE_FLOW_ITEM_TYPE_TCP:
                        if (l3 == RTE_FLOW_ITEM_TYPE_IPV4)
                                flow_type = ICE_FLTR_PTYPE_NONF_IPV4_TCP;
-- 
2.20.1

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