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Date: Mon, 18 Sep 2017 09:41:20 +0200 From: Richard Cochran <rcochran@...utronix.de> To: <netdev@...r.kernel.org> Cc: <linux-kernel@...r.kernel.org>, intel-wired-lan@...ts.osuosl.org, Andre Guedes <andre.guedes@...el.com>, Anna-Maria Gleixner <anna-maria@...utronix.de>, David Miller <davem@...emloft.net>, Henrik Austad <henrik@...tad.us>, Jesus Sanchez-Palencia <jesus.sanchez-palencia@...el.com>, John Stultz <john.stultz@...aro.org>, Thomas Gleixner <tglx@...utronix.de>, Vinicius Costa Gomes <vinicius.gomes@...el.com> Subject: [PATCH RFC V1 net-next 5/6] net: packet: Hook into time based transmission. For raw layer-2 packets, copy the desired future transmit time from the CMSG cookie into the skb. Signed-off-by: Richard Cochran <rcochran@...utronix.de> --- net/packet/af_packet.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c index c26172995511..342c6cc81a42 100644 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -1984,6 +1984,7 @@ static int packet_sendmsg_spkt(struct socket *sock, struct msghdr *msg, goto out_unlock; } + sockc.transmit_time = 0; sockc.tsflags = sk->sk_tsflags; if (msg->msg_controllen) { err = sock_cmsg_send(sk, msg, &sockc); @@ -1995,6 +1996,7 @@ static int packet_sendmsg_spkt(struct socket *sock, struct msghdr *msg, skb->dev = dev; skb->priority = sk->sk_priority; skb->mark = sk->sk_mark; + skb->transmit_time = sockc.transmit_time; sock_tx_timestamp(sk, sockc.tsflags, &skb_shinfo(skb)->tx_flags); @@ -2492,6 +2494,7 @@ static int tpacket_fill_skb(struct packet_sock *po, struct sk_buff *skb, skb->dev = dev; skb->priority = po->sk.sk_priority; skb->mark = po->sk.sk_mark; + skb->transmit_time = sockc->transmit_time; sock_tx_timestamp(&po->sk, sockc->tsflags, &skb_shinfo(skb)->tx_flags); skb_shinfo(skb)->destructor_arg = ph.raw; @@ -2668,6 +2671,7 @@ static int tpacket_snd(struct packet_sock *po, struct msghdr *msg) if (unlikely(!(dev->flags & IFF_UP))) goto out_put; + sockc.transmit_time = 0; sockc.tsflags = po->sk.sk_tsflags; if (msg->msg_controllen) { err = sock_cmsg_send(&po->sk, msg, &sockc); @@ -2863,6 +2867,7 @@ static int packet_snd(struct socket *sock, struct msghdr *msg, size_t len) if (unlikely(!(dev->flags & IFF_UP))) goto out_unlock; + sockc.transmit_time = 0; sockc.tsflags = sk->sk_tsflags; sockc.mark = sk->sk_mark; if (msg->msg_controllen) { @@ -2934,6 +2939,7 @@ static int packet_snd(struct socket *sock, struct msghdr *msg, size_t len) skb->dev = dev; skb->priority = sk->sk_priority; skb->mark = sockc.mark; + skb->transmit_time = sockc.transmit_time; if (po->has_vnet_hdr) { err = virtio_net_hdr_to_skb(skb, &vnet_hdr, vio_le()); -- 2.11.0
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