diff options
Diffstat (limited to 'tcp_vu.c')
| -rw-r--r-- | tcp_vu.c | 7 |
1 files changed, 5 insertions, 2 deletions
@@ -289,10 +289,11 @@ static ssize_t tcp_vu_sock_recv(const struct ctx *c, * @iov_cnt: Number of entries in @iov * @check: Checksum, if already known * @no_tcp_csum: Do not set TCP checksum + * @push: Set PSH flag, last segment in a batch */ static void tcp_vu_prepare(const struct ctx *c, struct tcp_tap_conn *conn, struct iovec *iov, size_t iov_cnt, - const uint16_t **check, bool no_tcp_csum) + const uint16_t **check, bool no_tcp_csum, bool push) { const struct flowside *toside = TAPFLOW(conn); bool v6 = !(inany_v4(&toside->eaddr) && inany_v4(&toside->oaddr)); @@ -334,6 +335,7 @@ static void tcp_vu_prepare(const struct ctx *c, struct tcp_tap_conn *conn, memset(th, 0, sizeof(*th)); th->doff = sizeof(*th) / 4; th->ack = 1; + th->psh = push; tcp_fill_headers(conn, NULL, ip4h, ip6h, th, &payload, *check, conn->seq_to_tap, no_tcp_csum); @@ -443,6 +445,7 @@ int tcp_vu_data_from_sock(const struct ctx *c, struct tcp_tap_conn *conn) struct iovec *iov = &elem[head[i]].in_sg[0]; int buf_cnt = head[i + 1] - head[i]; ssize_t dlen = iov_size(iov, buf_cnt) - hdrlen; + bool push = i == head_cnt - 1; vu_set_vnethdr(vdev, iov->iov_base, buf_cnt); @@ -451,7 +454,7 @@ int tcp_vu_data_from_sock(const struct ctx *c, struct tcp_tap_conn *conn) check = NULL; previous_dlen = dlen; - tcp_vu_prepare(c, conn, iov, buf_cnt, &check, !*c->pcap); + tcp_vu_prepare(c, conn, iov, buf_cnt, &check, !*c->pcap, push); if (*c->pcap) { pcap_iov(iov, buf_cnt, |