Add possibility to use RTE_FLOW_ITEM_TYPE_IPV4

Signed-off-by: Serhii Iliushyk <sil-...@napatech.com>
---
 doc/guides/nics/features/ntnic.ini            |   1 +
 .../profile_inline/flow_api_profile_inline.c  | 162 ++++++++++++++++++
 2 files changed, 163 insertions(+)

diff --git a/doc/guides/nics/features/ntnic.ini 
b/doc/guides/nics/features/ntnic.ini
index 36b8212bae..bae25d2e2d 100644
--- a/doc/guides/nics/features/ntnic.ini
+++ b/doc/guides/nics/features/ntnic.ini
@@ -16,6 +16,7 @@ x86-64               = Y
 [rte_flow items]
 any                  = Y
 eth                  = Y
+ipv4                 = Y
 
 [rte_flow actions]
 drop                 = Y
diff --git 
a/drivers/net/ntnic/nthw/flow_api/profile_inline/flow_api_profile_inline.c 
b/drivers/net/ntnic/nthw/flow_api/profile_inline/flow_api_profile_inline.c
index 93f666a054..d5d853351e 100644
--- a/drivers/net/ntnic/nthw/flow_api/profile_inline/flow_api_profile_inline.c
+++ b/drivers/net/ntnic/nthw/flow_api/profile_inline/flow_api_profile_inline.c
@@ -664,7 +664,169 @@ static int interpret_flow_elements(const struct 
flow_eth_dev *dev,
 
                        break;
 
+
+               case RTE_FLOW_ITEM_TYPE_IPV4:
+                       NT_LOG(DBG, FILTER, "Adap %i, Port %i: 
RTE_FLOW_ITEM_TYPE_IPV4",
                                dev->ndev->adapter_no, dev->port);
+                       {
+                               const struct rte_flow_item_ipv4 *ipv4_spec =
+                                       (const struct rte_flow_item_ipv4 
*)elem[eidx].spec;
+                               const struct rte_flow_item_ipv4 *ipv4_mask =
+                                       (const struct rte_flow_item_ipv4 
*)elem[eidx].mask;
+
+                               if (ipv4_spec == NULL || ipv4_mask == NULL) {
+                                       if (any_count > 0 || fd->l3_prot != -1)
+                                               fd->tunnel_l3_prot = 
PROT_TUN_L3_IPV4;
+                                       else
+                                               fd->l3_prot = PROT_L3_IPV4;
+                                       break;
+                               }
+
+                               if (ipv4_mask->hdr.version_ihl != 0 ||
+                                       ipv4_mask->hdr.type_of_service != 0 ||
+                                       ipv4_mask->hdr.total_length != 0 ||
+                                       ipv4_mask->hdr.packet_id != 0 ||
+                                       (ipv4_mask->hdr.fragment_offset != 0 &&
+                                       (ipv4_spec->hdr.fragment_offset != 
0xffff ||
+                                       ipv4_mask->hdr.fragment_offset != 
0xffff)) ||
+                                       ipv4_mask->hdr.time_to_live != 0 ||
+                                       ipv4_mask->hdr.hdr_checksum != 0) {
+                                       NT_LOG(ERR, FILTER,
+                                               "Requested IPv4 field not 
support by running SW version.");
+                                       flow_nic_set_error(ERR_FAILED, error);
+                                       return -1;
+                               }
+
+                               if (ipv4_spec->hdr.fragment_offset == 0xffff &&
+                                       ipv4_mask->hdr.fragment_offset == 
0xffff) {
+                                       fd->fragmentation = 0xfe;
+                               }
+
+                               int match_cnt = (ipv4_mask->hdr.src_addr != 0) +
+                                       (ipv4_mask->hdr.dst_addr != 0) +
+                                       (ipv4_mask->hdr.next_proto_id != 0);
+
+                               if (match_cnt <= 0) {
+                                       if (any_count > 0 || fd->l3_prot != -1)
+                                               fd->tunnel_l3_prot = 
PROT_TUN_L3_IPV4;
+                                       else
+                                               fd->l3_prot = PROT_L3_IPV4;
+                                       break;
+                               }
+
+                               if (qw_free > 0 &&
+                                       (match_cnt >= 2 ||
+                                       (match_cnt == 1 && sw_counter >= 2))) {
+                                       if (qw_counter >= 2) {
+                                               NT_LOG(ERR, FILTER,
+                                                       "Key size too big. Out 
of QW resources.");
+                                               flow_nic_set_error(ERR_FAILED,
+                                                       error);
+                                               return -1;
+                                       }
+
+                                       uint32_t *qw_data = &packet_data[2 + 4 
- qw_counter * 4];
+                                       uint32_t *qw_mask = &packet_mask[2 + 4 
- qw_counter * 4];
+
+                                       qw_mask[0] = 0;
+                                       qw_data[0] = 0;
+
+                                       qw_mask[1] = 
ipv4_mask->hdr.next_proto_id << 16;
+                                       qw_data[1] = 
ipv4_spec->hdr.next_proto_id
+                                               << 16 & qw_mask[1];
+
+                                       qw_mask[2] = 
ntohl(ipv4_mask->hdr.src_addr);
+                                       qw_mask[3] = 
ntohl(ipv4_mask->hdr.dst_addr);
+
+                                       qw_data[2] = 
ntohl(ipv4_spec->hdr.src_addr) & qw_mask[2];
+                                       qw_data[3] = 
ntohl(ipv4_spec->hdr.dst_addr) & qw_mask[3];
+
+                                       km_add_match_elem(&fd->km, &qw_data[0], 
&qw_mask[0], 4,
+                                               any_count > 0 ? DYN_TUN_L3 : 
DYN_L3, 4);
+                                       set_key_def_qw(key_def, qw_counter, 
any_count > 0
+                                               ? DYN_TUN_L3 : DYN_L3, 4);
+                                       qw_counter += 1;
+                                       qw_free -= 1;
+
+                                       if (any_count > 0 || fd->l3_prot != -1)
+                                               fd->tunnel_l3_prot = 
PROT_TUN_L3_IPV4;
+                                       else
+                                               fd->l3_prot = PROT_L3_IPV4;
+                                       break;
+                               }
+
+                               if (ipv4_mask->hdr.src_addr) {
+                                       if (sw_counter >= 2) {
+                                               NT_LOG(ERR, FILTER,
+                                                       "Key size too big. Out 
of SW resources.");
+                                               flow_nic_set_error(ERR_FAILED, 
error);
+                                               return -1;
+                                       }
+
+                                       uint32_t *sw_data = &packet_data[1 - 
sw_counter];
+                                       uint32_t *sw_mask = &packet_mask[1 - 
sw_counter];
+
+                                       sw_mask[0] = 
ntohl(ipv4_mask->hdr.src_addr);
+                                       sw_data[0] = 
ntohl(ipv4_spec->hdr.src_addr) & sw_mask[0];
+
+                                       km_add_match_elem(&fd->km, &sw_data[0], 
&sw_mask[0], 1,
+                                               any_count > 0 ? DYN_TUN_L3 : 
DYN_L3, 12);
+                                       set_key_def_sw(key_def, sw_counter, 
any_count > 0
+                                               ? DYN_TUN_L3 : DYN_L3, 12);
+                                       sw_counter += 1;
+                               }
+
+                               if (ipv4_mask->hdr.dst_addr) {
+                                       if (sw_counter >= 2) {
+                                               NT_LOG(ERR, FILTER,
+                                                       "Key size too big. Out 
of SW resources.");
+                                               flow_nic_set_error(ERR_FAILED, 
error);
+                                               return -1;
+                                       }
+
+                                       uint32_t *sw_data = &packet_data[1 - 
sw_counter];
+                                       uint32_t *sw_mask = &packet_mask[1 - 
sw_counter];
+
+                                       sw_mask[0] = 
ntohl(ipv4_mask->hdr.dst_addr);
+                                       sw_data[0] = 
ntohl(ipv4_spec->hdr.dst_addr) & sw_mask[0];
+
+                                       km_add_match_elem(&fd->km, &sw_data[0], 
&sw_mask[0], 1,
+                                               any_count > 0 ? DYN_TUN_L3 : 
DYN_L3, 16);
+                                       set_key_def_sw(key_def, sw_counter, 
any_count > 0
+                                               ? DYN_TUN_L3 : DYN_L3, 16);
+                                       sw_counter += 1;
+                               }
+
+                               if (ipv4_mask->hdr.next_proto_id) {
+                                       if (sw_counter >= 2) {
+                                               NT_LOG(ERR, FILTER,
+                                                       "Key size too big. Out 
of SW resources.");
+                                               flow_nic_set_error(ERR_FAILED, 
error);
+                                               return -1;
+                                       }
+
+                                       uint32_t *sw_data = &packet_data[1 - 
sw_counter];
+                                       uint32_t *sw_mask = &packet_mask[1 - 
sw_counter];
+
+                                       sw_mask[0] = 
ipv4_mask->hdr.next_proto_id << 16;
+                                       sw_data[0] = 
ipv4_spec->hdr.next_proto_id
+                                               << 16 & sw_mask[0];
+
+                                       km_add_match_elem(&fd->km, &sw_data[0], 
&sw_mask[0], 1,
+                                               any_count > 0 ? DYN_TUN_L3 : 
DYN_L3, 8);
+                                       set_key_def_sw(key_def, sw_counter, 
any_count > 0
+                                               ? DYN_TUN_L3 : DYN_L3, 8);
+                                       sw_counter += 1;
+                               }
+
+                               if (any_count > 0 || fd->l3_prot != -1)
+                                       fd->tunnel_l3_prot = PROT_TUN_L3_IPV4;
+
+                               else
+                                       fd->l3_prot = PROT_L3_IPV4;
+                       }
+
+                       break;
                        break;
 
                default:
-- 
2.45.0

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