Update Linux to v5.10.109
Sourced from [1]
[1] https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.10.109.tar.xz
Change-Id: I19bca9fc6762d4e63bcf3e4cba88bbe560d9c76c
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
diff --git a/net/tls/tls_toe.c b/net/tls/tls_toe.c
new file mode 100644
index 0000000..7e1330f
--- /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);