LCOV - code coverage report
Current view: top level - lib/gso - gso_tunnel_tcp4.c (source / functions) Hit Total Coverage
Test: Code coverage Lines: 0 33 0.0 %
Date: 2024-12-01 18:57:19 Functions: 0 2 0.0 %
Legend: Lines: hit not hit | Branches: + taken - not taken # not executed Branches: 0 18 0.0 %

           Branch data     Line data    Source code
       1                 :            : /* SPDX-License-Identifier: BSD-3-Clause
       2                 :            :  * Copyright(c) 2017 Intel Corporation
       3                 :            :  */
       4                 :            : 
       5                 :            : #include "gso_common.h"
       6                 :            : #include "gso_tunnel_tcp4.h"
       7                 :            : 
       8                 :            : static void
       9                 :          0 : update_tunnel_ipv4_tcp_headers(struct rte_mbuf *pkt, uint8_t ipid_delta,
      10                 :            :                 struct rte_mbuf **segs, uint16_t nb_segs)
      11                 :            : {
      12                 :            :         struct rte_ipv4_hdr *ipv4_hdr;
      13                 :            :         struct rte_tcp_hdr *tcp_hdr;
      14                 :            :         uint32_t sent_seq;
      15                 :            :         uint16_t outer_id, inner_id, tail_idx, i;
      16                 :            :         uint16_t outer_ipv4_offset, inner_ipv4_offset;
      17                 :            :         uint16_t udp_gre_offset, tcp_offset;
      18                 :            :         uint8_t update_udp_hdr;
      19                 :            : 
      20                 :          0 :         outer_ipv4_offset = pkt->outer_l2_len;
      21                 :          0 :         udp_gre_offset = outer_ipv4_offset + pkt->outer_l3_len;
      22                 :          0 :         inner_ipv4_offset = udp_gre_offset + pkt->l2_len;
      23                 :          0 :         tcp_offset = inner_ipv4_offset + pkt->l3_len;
      24                 :            : 
      25                 :            :         /* Outer IPv4 header. */
      26                 :          0 :         ipv4_hdr = rte_pktmbuf_mtod_offset(pkt, struct rte_ipv4_hdr *,
      27                 :            :                                            outer_ipv4_offset);
      28         [ #  # ]:          0 :         outer_id = rte_be_to_cpu_16(ipv4_hdr->packet_id);
      29                 :            : 
      30                 :            :         /* Inner IPv4 header. */
      31                 :          0 :         ipv4_hdr = rte_pktmbuf_mtod_offset(pkt, struct rte_ipv4_hdr *,
      32                 :            :                                            inner_ipv4_offset);
      33         [ #  # ]:          0 :         inner_id = rte_be_to_cpu_16(ipv4_hdr->packet_id);
      34                 :            : 
      35                 :          0 :         tcp_hdr = (struct rte_tcp_hdr *)((char *)ipv4_hdr + pkt->l3_len);
      36         [ #  # ]:          0 :         sent_seq = rte_be_to_cpu_32(tcp_hdr->sent_seq);
      37                 :          0 :         tail_idx = nb_segs - 1;
      38                 :            : 
      39                 :            :         /* Only update UDP header for VxLAN packets. */
      40                 :          0 :         update_udp_hdr = (pkt->ol_flags & RTE_MBUF_F_TX_TUNNEL_VXLAN) ? 1 : 0;
      41                 :            : 
      42         [ #  # ]:          0 :         for (i = 0; i < nb_segs; i++) {
      43                 :          0 :                 update_ipv4_header(segs[i], outer_ipv4_offset, outer_id);
      44         [ #  # ]:          0 :                 if (update_udp_hdr)
      45                 :            :                         update_udp_header(segs[i], udp_gre_offset);
      46                 :          0 :                 update_ipv4_header(segs[i], inner_ipv4_offset, inner_id);
      47                 :          0 :                 update_tcp_header(segs[i], tcp_offset, sent_seq, i < tail_idx);
      48                 :          0 :                 outer_id++;
      49                 :          0 :                 inner_id += ipid_delta;
      50                 :          0 :                 sent_seq += (segs[i]->pkt_len - segs[i]->data_len);
      51                 :            :         }
      52                 :          0 : }
      53                 :            : 
      54                 :            : int
      55                 :          0 : gso_tunnel_tcp4_segment(struct rte_mbuf *pkt,
      56                 :            :                 uint16_t gso_size,
      57                 :            :                 uint8_t ipid_delta,
      58                 :            :                 struct rte_mempool *direct_pool,
      59                 :            :                 struct rte_mempool *indirect_pool,
      60                 :            :                 struct rte_mbuf **pkts_out,
      61                 :            :                 uint16_t nb_pkts_out)
      62                 :            : {
      63                 :            :         struct rte_ipv4_hdr *inner_ipv4_hdr;
      64                 :            :         uint16_t pyld_unit_size, hdr_offset, frag_off;
      65                 :            :         int ret;
      66                 :            : 
      67                 :          0 :         hdr_offset = pkt->outer_l2_len + pkt->outer_l3_len + pkt->l2_len;
      68                 :          0 :         inner_ipv4_hdr = rte_pktmbuf_mtod_offset(pkt, struct rte_ipv4_hdr *,
      69                 :            :                                                  hdr_offset);
      70                 :            :         /*
      71                 :            :          * Don't process the packet whose MF bit or offset in the inner
      72                 :            :          * IPv4 header are non-zero.
      73                 :            :          */
      74         [ #  # ]:          0 :         frag_off = rte_be_to_cpu_16(inner_ipv4_hdr->fragment_offset);
      75         [ #  # ]:          0 :         if (unlikely(IS_FRAGMENTED(frag_off))) {
      76                 :            :                 return 0;
      77                 :            :         }
      78                 :            : 
      79                 :          0 :         hdr_offset += pkt->l3_len + pkt->l4_len;
      80                 :            :         /* Don't process the packet without data */
      81         [ #  # ]:          0 :         if (hdr_offset >= pkt->pkt_len) {
      82                 :            :                 return 0;
      83                 :            :         }
      84                 :          0 :         pyld_unit_size = gso_size - hdr_offset;
      85                 :            : 
      86                 :            :         /* Segment the payload */
      87                 :          0 :         ret = gso_do_segment(pkt, hdr_offset, pyld_unit_size, direct_pool,
      88                 :            :                         indirect_pool, pkts_out, nb_pkts_out);
      89         [ #  # ]:          0 :         if (ret > 1)
      90                 :          0 :                 update_tunnel_ipv4_tcp_headers(pkt, ipid_delta, pkts_out, ret);
      91                 :            : 
      92                 :            :         return ret;
      93                 :            : }

Generated by: LCOV version 1.14