From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jesus Sanchez-Palencia Subject: [RFC v2 net-next 04/10] net: packet: Hook into time based transmission. Date: Wed, 17 Jan 2018 15:06:15 -0800 Message-ID: <20180117230621.26074-5-jesus.sanchez-palencia@intel.com> References: <20180117230621.26074-1-jesus.sanchez-palencia@intel.com> Cc: jhs@mojatatu.com, xiyou.wangcong@gmail.com, jiri@resnulli.us, vinicius.gomes@intel.com, richardcochran@gmail.com, intel-wired-lan@lists.osuosl.org, anna-maria@linutronix.de, henrik@austad.us, tglx@linutronix.de, john.stultz@linaro.org, andre.guedes@intel.com, ivan.briano@intel.com, levi.pearson@harman.com, Richard Cochran , Jesus Sanchez-Palencia To: netdev@vger.kernel.org Return-path: Received: from mga06.intel.com ([134.134.136.31]:63115 "EHLO mga06.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753268AbeAQXHk (ORCPT ); Wed, 17 Jan 2018 18:07:40 -0500 In-Reply-To: <20180117230621.26074-1-jesus.sanchez-palencia@intel.com> Sender: netdev-owner@vger.kernel.org List-ID: From: Richard Cochran For raw layer-2 packets, copy the desired future transmit time from the CMSG cookie into the skb. Signed-off-by: Richard Cochran Signed-off-by: Jesus Sanchez-Palencia --- 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 05d31864a34e..6af129a65e85 100644 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -1976,6 +1976,7 @@ 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); @@ -1987,6 +1988,7 @@ 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->tstamp = sockc.transmit_time; sock_tx_timestamp(sk, sockc.tsflags, &skb_shinfo(skb)->tx_flags); @@ -2484,6 +2486,7 @@ 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->tstamp = sockc->transmit_time; sock_tx_timestamp(&po->sk, sockc->tsflags, &skb_shinfo(skb)->tx_flags); skb_shinfo(skb)->destructor_arg = ph.raw; @@ -2660,6 +2663,7 @@ 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); @@ -2856,6 +2860,7 @@ 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) { @@ -2928,6 +2933,7 @@ 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->tstamp = sockc.transmit_time; if (has_vnet_hdr) { err = virtio_net_hdr_to_skb(skb, &vnet_hdr, vio_le()); -- 2.15.1