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

Pull networking updates from David Miller:

 1) Support offloading wireless authentication to userspace via
    NL80211_CMD_EXTERNAL_AUTH, from Srinivas Dasari.

 2) A lot of work on network namespace setup/teardown from Kirill Tkhai.
    Setup and cleanup of namespaces now all run asynchronously and thus
    performance is significantly increased.

 3) Add rx/tx timestamping support to mv88e6xxx driver, from Brandon
    Streiff.

 4) Support zerocopy on RDS sockets, from Sowmini Varadhan.

 5) Use denser instruction encoding in x86 eBPF JIT, from Daniel
    Borkmann.

 6) Support hw offload of vlan filtering in mvpp2 dreiver, from Maxime
    Chevallier.

 7) Support grafting of child qdiscs in mlxsw driver, from Nogah
    Frankel.

 8) Add packet forwarding tests to selftests, from Ido Schimmel.

 9) Deal with sub-optimal GSO packets better in BBR congestion control,
    from Eric Dumazet.

10) Support 5-tuple hashing in ipv6 multipath routing, from David Ahern.

11) Add path MTU tests to selftests, from Stefano Brivio.

12) Various bits of IPSEC offloading support for mlx5, from Aviad
    Yehezkel, Yossi Kuperman, and Saeed Mahameed.

13) Support RSS spreading on ntuple filters in SFC driver, from Edward
    Cree.

14) Lots of sockmap work from John Fastabend. Applications can use eBPF
    to filter sendmsg and sendpage operations.

15) In-kernel receive TLS support, from Dave Watson.

16) Add XDP support to ixgbevf, this is significant because it should
    allow optimized XDP usage in various cloud environments. From Tony
    Nguyen.

17) Add new Intel E800 series "ice" ethernet driver, from Anirudh
    Venkataramanan et al.

18) IP fragmentation match offload support in nfp driver, from Pieter
    Jansen van Vuuren.

19) Support XDP redirect in i40e driver, from Björn Töpel.

20) Add BPF_RAW_TRACEPOINT program type for accessing the arguments of
    tracepoints in their raw form, from Alexei Starovoitov.

21) Lots of striding RQ improvements to mlx5 driver with many
    performance improvements, from Tariq Toukan.

22) Use rhashtable for inet frag reassembly, from Eric Dumazet.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1678 commits)
  net: mvneta: improve suspend/resume
  net: mvneta: split rxq/txq init and txq deinit into SW and HW parts
  ipv6: frags: fix /proc/sys/net/ipv6/ip6frag_low_thresh
  net: bgmac: Fix endian access in bgmac_dma_tx_ring_free()
  net: bgmac: Correctly annotate register space
  route: check sysctl_fib_multipath_use_neigh earlier than hash
  fix typo in command value in drivers/net/phy/mdio-bitbang.
  sky2: Increase D3 delay to sky2 stops working after suspend
  net/mlx5e: Set EQE based as default TX interrupt moderation mode
  ibmvnic: Disable irqs before exiting reset from closed state
  net: sched: do not emit messages while holding spinlock
  vlan: also check phy_driver ts_info for vlan's real device
  Bluetooth: Mark expected switch fall-throughs
  Bluetooth: Set HCI_QUIRK_SIMULTANEOUS_DISCOVERY for BTUSB_QCA_ROME
  Bluetooth: btrsi: remove unused including <linux/version.h>
  Bluetooth: hci_bcm: Remove DMI quirk for the MINIX Z83-4
  sh_eth: kill useless check in __sh_eth_get_regs()
  sh_eth: add sh_eth_cpu_data::no_xdfar flag
  ipv6: factorize sk_wmem_alloc updates done by __ip6_append_data()
  ipv4: factorize sk_wmem_alloc updates done by __ip_append_data()
  ...

1 files changed, 76 insertions, 25 deletions

diff --git a/net/8021q/vlan_core.c b/net/8021q/vlan_core.c
index 45c9bf5ff3a0..4f60e86f4b8d 100644
--- a/net/8021q/vlan_core.c
+++ b/net/8021q/vlan_core.c
@@ -165,13 +165,12 @@ struct vlan_vid_info {
 	int refcount;
 };
 
-static bool vlan_hw_filter_capable(const struct net_device *dev,
-				     const struct vlan_vid_info *vid_info)
+static bool vlan_hw_filter_capable(const struct net_device *dev, __be16 proto)
 {
-	if (vid_info->proto == htons(ETH_P_8021Q) &&
+	if (proto == htons(ETH_P_8021Q) &&
 	    dev->features & NETIF_F_HW_VLAN_CTAG_FILTER)
 		return true;
-	if (vid_info->proto == htons(ETH_P_8021AD) &&
+	if (proto == htons(ETH_P_8021AD) &&
 	    dev->features & NETIF_F_HW_VLAN_STAG_FILTER)
 		return true;
 	return false;
@@ -202,11 +201,73 @@ static struct vlan_vid_info *vlan_vid_info_alloc(__be16 proto, u16 vid)
 	return vid_info;
 }
 
+static int vlan_add_rx_filter_info(struct net_device *dev, __be16 proto, u16 vid)
+{
+	if (!vlan_hw_filter_capable(dev, proto))
+		return 0;
+
+	if (netif_device_present(dev))
+		return dev->netdev_ops->ndo_vlan_rx_add_vid(dev, proto, vid);
+	else
+		return -ENODEV;
+}
+
+static int vlan_kill_rx_filter_info(struct net_device *dev, __be16 proto, u16 vid)
+{
+	if (!vlan_hw_filter_capable(dev, proto))
+		return 0;
+
+	if (netif_device_present(dev))
+		return dev->netdev_ops->ndo_vlan_rx_kill_vid(dev, proto, vid);
+	else
+		return -ENODEV;
+}
+
+int vlan_filter_push_vids(struct vlan_info *vlan_info, __be16 proto)
+{
+	struct net_device *real_dev = vlan_info->real_dev;
+	struct vlan_vid_info *vlan_vid_info;
+	int err;
+
+	list_for_each_entry(vlan_vid_info, &vlan_info->vid_list, list) {
+		if (vlan_vid_info->proto == proto) {
+			err = vlan_add_rx_filter_info(real_dev, proto,
+						      vlan_vid_info->vid);
+			if (err)
+				goto unwind;
+		}
+	}
+
+	return 0;
+
+unwind:
+	list_for_each_entry_continue_reverse(vlan_vid_info,
+					     &vlan_info->vid_list, list) {
+		if (vlan_vid_info->proto == proto)
+			vlan_kill_rx_filter_info(real_dev, proto,
+						 vlan_vid_info->vid);
+	}
+
+	return err;
+}
+EXPORT_SYMBOL(vlan_filter_push_vids);
+
+void vlan_filter_drop_vids(struct vlan_info *vlan_info, __be16 proto)
+{
+	struct vlan_vid_info *vlan_vid_info;
+
+	list_for_each_entry(vlan_vid_info, &vlan_info->vid_list, list)
+		if (vlan_vid_info->proto == proto)
+			vlan_kill_rx_filter_info(vlan_info->real_dev,
+						 vlan_vid_info->proto,
+						 vlan_vid_info->vid);
+}
+EXPORT_SYMBOL(vlan_filter_drop_vids);
+
 static int __vlan_vid_add(struct vlan_info *vlan_info, __be16 proto, u16 vid,
 			  struct vlan_vid_info **pvid_info)
 {
 	struct net_device *dev = vlan_info->real_dev;
-	const struct net_device_ops *ops = dev->netdev_ops;
 	struct vlan_vid_info *vid_info;
 	int err;
 
@@ -214,16 +275,12 @@ static int __vlan_vid_add(struct vlan_info *vlan_info, __be16 proto, u16 vid,
 	if (!vid_info)
 		return -ENOMEM;
 
-	if (vlan_hw_filter_capable(dev, vid_info)) {
-		if (netif_device_present(dev))
-			err = ops->ndo_vlan_rx_add_vid(dev, proto, vid);
-		else
-			err = -ENODEV;
-		if (err) {
-			kfree(vid_info);
-			return err;
-		}
+	err = vlan_add_rx_filter_info(dev, proto, vid);
+	if (err) {
+		kfree(vid_info);
+		return err;
 	}
+
 	list_add(&vid_info->list, &vlan_info->vid_list);
 	vlan_info->nr_vids++;
 	*pvid_info = vid_info;
@@ -270,21 +327,15 @@ static void __vlan_vid_del(struct vlan_info *vlan_info,
 			   struct vlan_vid_info *vid_info)
 {
 	struct net_device *dev = vlan_info->real_dev;
-	const struct net_device_ops *ops = dev->netdev_ops;
 	__be16 proto = vid_info->proto;
 	u16 vid = vid_info->vid;
 	int err;
 
-	if (vlan_hw_filter_capable(dev, vid_info)) {
-		if (netif_device_present(dev))
-			err = ops->ndo_vlan_rx_kill_vid(dev, proto, vid);
-		else
-			err = -ENODEV;
-		if (err) {
-			pr_warn("failed to kill vid %04x/%d for device %s\n",
-				proto, vid, dev->name);
-		}
-	}
+	err = vlan_kill_rx_filter_info(dev, proto, vid);
+	if (err)
+		pr_warn("failed to kill vid %04x/%d for device %s\n",
+			proto, vid, dev->name);
+
 	list_del(&vid_info->list);
 	kfree(vid_info);
 	vlan_info->nr_vids--;