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Update the TCP LRO code to handle both encrypted and un-encrypted traffic.
Encrypted and un-encrypted traffic needs to be coalesced separately. Split the 16-bit lro_type field in the address information into two 8-bit fields, and then use the last 8-bit field for flags, which among other indicate if the received mbuf is encrypted or un-encrypted. Differential Revision: https://reviews.freebsd.org/D31377 Reviewed by: gallatin MFC after: 1 week Sponsored by: NVIDIA Networking
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@ -394,6 +394,9 @@ tcp_lro_parser(struct mbuf *m, struct lro_parser *po, struct lro_parser *pi, boo
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po->data.vlan_id =
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htons(m->m_pkthdr.ether_vtag) & htons(EVL_VLID_MASK);
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}
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/* Store decrypted flag, if any. */
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if (__predict_false(m->m_flags & M_DECRYPTED))
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po->data.lro_flags |= LRO_FLAG_DECRYPTED;
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}
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switch (po->data.lro_type) {
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@ -1583,7 +1586,7 @@ do_bpf_strip_and_compress(struct inpcb *inp, struct lro_ctrl *lc,
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uint32_t *ts_ptr;
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int32_t n_mbuf;
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bool other_opts, can_compress;
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uint16_t lro_type;
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uint8_t lro_type;
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uint16_t iptos;
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int tcp_hdr_offset;
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int idx;
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@ -67,12 +67,14 @@ struct inpcb;
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union lro_address {
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u_long raw[1];
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struct {
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uint16_t lro_type; /* internal */
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uint8_t lro_type; /* internal */
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#define LRO_TYPE_NONE 0
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#define LRO_TYPE_IPV4_TCP 1
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#define LRO_TYPE_IPV6_TCP 2
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#define LRO_TYPE_IPV4_UDP 3
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#define LRO_TYPE_IPV6_UDP 4
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uint8_t lro_flags;
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#define LRO_FLAG_DECRYPTED 1
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uint16_t vlan_id; /* VLAN identifier */
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uint16_t s_port; /* source TCP/UDP port */
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uint16_t d_port; /* destination TCP/UDP port */
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