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

Pull networking updates from David Miller:
 "Another merge window, another pull full of stuff:

   1) Support alternative names for network devices, from Jiri Pirko.

   2) Introduce per-netns netdev notifiers, also from Jiri Pirko.

   3) Support MSG_PEEK in vsock/virtio, from Matias Ezequiel Vara
      Larsen.

   4) Allow compiling out the TLS TOE code, from Jakub Kicinski.

   5) Add several new tracepoints to the kTLS code, also from Jakub.

   6) Support set channels ethtool callback in ena driver, from Sameeh
      Jubran.

   7) New SCTP events SCTP_ADDR_ADDED, SCTP_ADDR_REMOVED,
      SCTP_ADDR_MADE_PRIM, and SCTP_SEND_FAILED_EVENT. From Xin Long.

   8) Add XDP support to mvneta driver, from Lorenzo Bianconi.

   9) Lots of netfilter hw offload fixes, cleanups and enhancements,
      from Pablo Neira Ayuso.

  10) PTP support for aquantia chips, from Egor Pomozov.

  11) Add UDP segmentation offload support to igb, ixgbe, and i40e. From
      Josh Hunt.

  12) Add smart nagle to tipc, from Jon Maloy.

  13) Support L2 field rewrite by TC offloads in bnxt_en, from Venkat
      Duvvuru.

  14) Add a flow mask cache to OVS, from Tonghao Zhang.

  15) Add XDP support to ice driver, from Maciej Fijalkowski.

  16) Add AF_XDP support to ice driver, from Krzysztof Kazimierczak.

  17) Support UDP GSO offload in atlantic driver, from Igor Russkikh.

  18) Support it in stmmac driver too, from Jose Abreu.

  19) Support TIPC encryption and auth, from Tuong Lien.

  20) Introduce BPF trampolines, from Alexei Starovoitov.

  21) Make page_pool API more numa friendly, from Saeed Mahameed.

  22) Introduce route hints to ipv4 and ipv6, from Paolo Abeni.

  23) Add UDP segmentation offload to cxgb4, Rahul Lakkireddy"

* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1857 commits)
  libbpf: Fix usage of u32 in userspace code
  mm: Implement no-MMU variant of vmalloc_user_node_flags
  slip: Fix use-after-free Read in slip_open
  net: dsa: sja1105: fix sja1105_parse_rgmii_delays()
  macvlan: schedule bc_work even if error
  enetc: add support Credit Based Shaper(CBS) for hardware offload
  net: phy: add helpers phy_(un)lock_mdio_bus
  mdio_bus: don't use managed reset-controller
  ax88179_178a: add ethtool_op_get_ts_info()
  mlxsw: spectrum_router: Fix use of uninitialized adjacency index
  mlxsw: spectrum_router: After underlay moves, demote conflicting tunnels
  bpf: Simplify __bpf_arch_text_poke poke type handling
  bpf: Introduce BPF_TRACE_x helper for the tracing tests
  bpf: Add bpf_jit_blinding_enabled for !CONFIG_BPF_JIT
  bpf, testing: Add various tail call test cases
  bpf, x86: Emit patchable direct jump as tail call
  bpf: Constant map key tracking for prog array pokes
  bpf: Add poke dependency tracking for prog array maps
  bpf: Add initial poke descriptor table for jit images
  bpf: Move owner type, jited info into array auxiliary data
  ...

1 files changed, 139 insertions, 0 deletions

diff --git a/net/tls/tls_toe.c b/net/tls/tls_toe.c
new file mode 100644
index 000000000000..7e1330f19165
--- /dev/null
+++ b/net/tls/tls_toe.c
@@ -0,0 +1,139 @@
+/*
+ * Copyright (c) 2016-2017, Mellanox Technologies. All rights reserved.
+ * Copyright (c) 2016-2017, Dave Watson <davejwatson@fb.com>. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/list.h>
+#include <linux/rcupdate.h>
+#include <linux/spinlock.h>
+#include <net/inet_connection_sock.h>
+#include <net/tls.h>
+#include <net/tls_toe.h>
+
+static LIST_HEAD(device_list);
+static DEFINE_SPINLOCK(device_spinlock);
+
+static void tls_toe_sk_destruct(struct sock *sk)
+{
+	struct inet_connection_sock *icsk = inet_csk(sk);
+	struct tls_context *ctx = tls_get_ctx(sk);
+
+	ctx->sk_destruct(sk);
+	/* Free ctx */
+	rcu_assign_pointer(icsk->icsk_ulp_data, NULL);
+	tls_ctx_free(sk, ctx);
+}
+
+int tls_toe_bypass(struct sock *sk)
+{
+	struct tls_toe_device *dev;
+	struct tls_context *ctx;
+	int rc = 0;
+
+	spin_lock_bh(&device_spinlock);
+	list_for_each_entry(dev, &device_list, dev_list) {
+		if (dev->feature && dev->feature(dev)) {
+			ctx = tls_ctx_create(sk);
+			if (!ctx)
+				goto out;
+
+			ctx->sk_destruct = sk->sk_destruct;
+			sk->sk_destruct = tls_toe_sk_destruct;
+			ctx->rx_conf = TLS_HW_RECORD;
+			ctx->tx_conf = TLS_HW_RECORD;
+			update_sk_prot(sk, ctx);
+			rc = 1;
+			break;
+		}
+	}
+out:
+	spin_unlock_bh(&device_spinlock);
+	return rc;
+}
+
+void tls_toe_unhash(struct sock *sk)
+{
+	struct tls_context *ctx = tls_get_ctx(sk);
+	struct tls_toe_device *dev;
+
+	spin_lock_bh(&device_spinlock);
+	list_for_each_entry(dev, &device_list, dev_list) {
+		if (dev->unhash) {
+			kref_get(&dev->kref);
+			spin_unlock_bh(&device_spinlock);
+			dev->unhash(dev, sk);
+			kref_put(&dev->kref, dev->release);
+			spin_lock_bh(&device_spinlock);
+		}
+	}
+	spin_unlock_bh(&device_spinlock);
+	ctx->sk_proto->unhash(sk);
+}
+
+int tls_toe_hash(struct sock *sk)
+{
+	struct tls_context *ctx = tls_get_ctx(sk);
+	struct tls_toe_device *dev;
+	int err;
+
+	err = ctx->sk_proto->hash(sk);
+	spin_lock_bh(&device_spinlock);
+	list_for_each_entry(dev, &device_list, dev_list) {
+		if (dev->hash) {
+			kref_get(&dev->kref);
+			spin_unlock_bh(&device_spinlock);
+			err |= dev->hash(dev, sk);
+			kref_put(&dev->kref, dev->release);
+			spin_lock_bh(&device_spinlock);
+		}
+	}
+	spin_unlock_bh(&device_spinlock);
+
+	if (err)
+		tls_toe_unhash(sk);
+	return err;
+}
+
+void tls_toe_register_device(struct tls_toe_device *device)
+{
+	spin_lock_bh(&device_spinlock);
+	list_add_tail(&device->dev_list, &device_list);
+	spin_unlock_bh(&device_spinlock);
+}
+EXPORT_SYMBOL(tls_toe_register_device);
+
+void tls_toe_unregister_device(struct tls_toe_device *device)
+{
+	spin_lock_bh(&device_spinlock);
+	list_del(&device->dev_list);
+	spin_unlock_bh(&device_spinlock);
+}
+EXPORT_SYMBOL(tls_toe_unregister_device);