Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

Pull networking updates from David Millar:
 "Here are some highlights from the 2065 networking commits that
  happened this development cycle:

   1) XDP support for IXGBE (John Fastabend) and thunderx (Sunil Kowuri)

   2) Add a generic XDP driver, so that anyone can test XDP even if they
      lack a networking device whose driver has explicit XDP support
      (me).

   3) Sparc64 now has an eBPF JIT too (me)

   4) Add a BPF program testing framework via BPF_PROG_TEST_RUN (Alexei
      Starovoitov)

   5) Make netfitler network namespace teardown less expensive (Florian
      Westphal)

   6) Add symmetric hashing support to nft_hash (Laura Garcia Liebana)

   7) Implement NAPI and GRO in netvsc driver (Stephen Hemminger)

   8) Support TC flower offload statistics in mlxsw (Arkadi Sharshevsky)

   9) Multiqueue support in stmmac driver (Joao Pinto)

  10) Remove TCP timewait recycling, it never really could possibly work
      well in the real world and timestamp randomization really zaps any
      hint of usability this feature had (Soheil Hassas Yeganeh)

  11) Support level3 vs level4 ECMP route hashing in ipv4 (Nikolay
      Aleksandrov)

  12) Add socket busy poll support to epoll (Sridhar Samudrala)

  13) Netlink extended ACK support (Johannes Berg, Pablo Neira Ayuso,
      and several others)

  14) IPSEC hw offload infrastructure (Steffen Klassert)"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (2065 commits)
  tipc: refactor function tipc_sk_recv_stream()
  tipc: refactor function tipc_sk_recvmsg()
  net: thunderx: Optimize page recycling for XDP
  net: thunderx: Support for XDP header adjustment
  net: thunderx: Add support for XDP_TX
  net: thunderx: Add support for XDP_DROP
  net: thunderx: Add basic XDP support
  net: thunderx: Cleanup receive buffer allocation
  net: thunderx: Optimize CQE_TX handling
  net: thunderx: Optimize RBDR descriptor handling
  net: thunderx: Support for page recycling
  ipx: call ipxitf_put() in ioctl error path
  net: sched: add helpers to handle extended actions
  qed*: Fix issues in the ptp filter config implementation.
  qede: Fix concurrency issue in PTP Tx path processing.
  stmmac: Add support for SIMATIC IOT2000 platform
  net: hns: fix ethtool_get_strings overflow in hns driver
  tcp: fix wraparound issue in tcp_lp
  bpf, arm64: fix jit branch offset related to ldimm64
  bpf, arm64: implement jiting of BPF_XADD
  ...

1 files changed, 23 insertions, 11 deletions

diff --git a/drivers/net/loopback.c b/drivers/net/loopback.c
index b23b71981fd5..224f65cb576b 100644
--- a/drivers/net/loopback.c
+++ b/drivers/net/loopback.c
@@ -13,7 +13,7 @@
  *
  *		Alan Cox	:	Fixed oddments for NET3.014
  *		Alan Cox	:	Rejig for NET3.029 snap #3
- *		Alan Cox	: 	Fixed NET3.029 bugs and sped up
+ *		Alan Cox	:	Fixed NET3.029 bugs and sped up
  *		Larry McVoy	:	Tiny tweak to double performance
  *		Alan Cox	:	Backed out LMV's tweak - the linux mm
  *					can't take it...
@@ -41,7 +41,7 @@
 #include <linux/in.h>
 
 #include <linux/uaccess.h>
-#include <asm/io.h>
+#include <linux/io.h>
 
 #include <linux/inet.h>
 #include <linux/netdevice.h>
@@ -55,6 +55,7 @@
 #include <linux/ip.h>
 #include <linux/tcp.h>
 #include <linux/percpu.h>
+#include <linux/net_tstamp.h>
 #include <net/net_namespace.h>
 #include <linux/u64_stats_sync.h>
 
@@ -64,8 +65,7 @@ struct pcpu_lstats {
 	struct u64_stats_sync	syncp;
 };
 
-/*
- * The higher levels take care of making this non-reentrant (it's
+/* The higher levels take care of making this non-reentrant (it's
  * called with bh's disabled).
  */
 static netdev_tx_t loopback_xmit(struct sk_buff *skb,
@@ -74,6 +74,7 @@ static netdev_tx_t loopback_xmit(struct sk_buff *skb,
 	struct pcpu_lstats *lb_stats;
 	int len;
 
+	skb_tx_timestamp(skb);
 	skb_orphan(skb);
 
 	/* Before queueing this packet to netif_rx(),
@@ -129,8 +130,21 @@ static u32 always_on(struct net_device *dev)
 	return 1;
 }
 
+static int loopback_get_ts_info(struct net_device *netdev,
+				struct ethtool_ts_info *ts_info)
+{
+	ts_info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE |
+				   SOF_TIMESTAMPING_RX_SOFTWARE |
+				   SOF_TIMESTAMPING_SOFTWARE;
+
+	ts_info->phc_index = -1;
+
+	return 0;
+};
+
 static const struct ethtool_ops loopback_ethtool_ops = {
 	.get_link		= always_on,
+	.get_ts_info		= loopback_get_ts_info,
 };
 
 static int loopback_dev_init(struct net_device *dev)
@@ -149,14 +163,13 @@ static void loopback_dev_free(struct net_device *dev)
 }
 
 static const struct net_device_ops loopback_ops = {
-	.ndo_init      = loopback_dev_init,
-	.ndo_start_xmit= loopback_xmit,
+	.ndo_init        = loopback_dev_init,
+	.ndo_start_xmit  = loopback_xmit,
 	.ndo_get_stats64 = loopback_get_stats64,
 	.ndo_set_mac_address = eth_mac_addr,
 };
 
-/*
- * The loopback device is special. There is only one instance
+/* The loopback device is special. There is only one instance
  * per network namespace.
  */
 static void loopback_setup(struct net_device *dev)
@@ -170,7 +183,7 @@ static void loopback_setup(struct net_device *dev)
 	dev->priv_flags		|= IFF_LIVE_ADDR_CHANGE | IFF_NO_QUEUE;
 	netif_keep_dst(dev);
 	dev->hw_features	= NETIF_F_GSO_SOFTWARE;
-	dev->features 		= NETIF_F_SG | NETIF_F_FRAGLIST
+	dev->features		= NETIF_F_SG | NETIF_F_FRAGLIST
 		| NETIF_F_GSO_SOFTWARE
 		| NETIF_F_HW_CSUM
 		| NETIF_F_RXCSUM
@@ -206,7 +219,6 @@ static __net_init int loopback_net_init(struct net *net)
 	net->loopback_dev = dev;
 	return 0;
 
-
 out_free_netdev:
 	free_netdev(dev);
 out:
@@ -217,5 +229,5 @@ out:
 
 /* Registered in net/core/dev.c */
 struct pernet_operations __net_initdata loopback_net_ops = {
-       .init = loopback_net_init,
+	.init = loopback_net_init,
 };