net/tls: move TOE-related code to a separate file

Move tls_hw_* functions to a new, separate source file
to avoid confusion with normal, non-TOE offload.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 102 deletions

diff --git a/net/tls/tls_main.c b/net/tls/tls_main.c
index 7bc2ad26316f..9d0cf14b2f7e 100644
--- a/net/tls/tls_main.c
+++ b/net/tls/tls_main.c
@@ -59,14 +59,12 @@ static struct proto *saved_tcpv6_prot;
 static DEFINE_MUTEX(tcpv6_prot_mutex);
 static struct proto *saved_tcpv4_prot;
 static DEFINE_MUTEX(tcpv4_prot_mutex);
-static LIST_HEAD(device_list);
-static DEFINE_SPINLOCK(device_spinlock);
 static struct proto tls_prots[TLS_NUM_PROTS][TLS_NUM_CONFIG][TLS_NUM_CONFIG];
 static struct proto_ops tls_sw_proto_ops;
 static void build_protos(struct proto prot[TLS_NUM_CONFIG][TLS_NUM_CONFIG],
 			 struct proto *base);
 
-static void update_sk_prot(struct sock *sk, struct tls_context *ctx)
+void update_sk_prot(struct sock *sk, struct tls_context *ctx)
 {
 	int ip_ver = sk->sk_family == AF_INET6 ? TLSV6 : TLSV4;
 
@@ -604,7 +602,7 @@ static int tls_setsockopt(struct sock *sk, int level, int optname,
 	return do_tls_setsockopt(sk, optname, optval, optlen);
 }
 
-static struct tls_context *create_ctx(struct sock *sk)
+struct tls_context *tls_ctx_create(struct sock *sk)
 {
 	struct inet_connection_sock *icsk = inet_csk(sk);
 	struct tls_context *ctx;
@@ -644,87 +642,6 @@ static void tls_build_proto(struct sock *sk)
 	}
 }
 
-static void tls_hw_sk_destruct(struct sock *sk)
-{
-	struct tls_context *ctx = tls_get_ctx(sk);
-	struct inet_connection_sock *icsk = inet_csk(sk);
-
-	ctx->sk_destruct(sk);
-	/* Free ctx */
-	rcu_assign_pointer(icsk->icsk_ulp_data, NULL);
-	tls_ctx_free(sk, ctx);
-}
-
-static int tls_hw_prot(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 = create_ctx(sk);
-			if (!ctx)
-				goto out;
-
-			ctx->sk_destruct = sk->sk_destruct;
-			sk->sk_destruct = tls_hw_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;
-}
-
-static void tls_hw_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);
-}
-
-static int tls_hw_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_hw_unhash(sk);
-	return err;
-}
-
 static void build_protos(struct proto prot[TLS_NUM_CONFIG][TLS_NUM_CONFIG],
 			 struct proto *base)
 {
@@ -789,7 +706,7 @@ static int tls_init(struct sock *sk)
 
 	/* allocate tls context */
 	write_lock_bh(&sk->sk_callback_lock);
-	ctx = create_ctx(sk);
+	ctx = tls_ctx_create(sk);
 	if (!ctx) {
 		rc = -ENOMEM;
 		goto out;
@@ -875,22 +792,6 @@ static size_t tls_get_info_size(const struct sock *sk)
 	return size;
 }
 
-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);
-
 static struct tcp_ulp_ops tcp_tls_ulp_ops __read_mostly = {
 	.name			= "tls",
 	.owner			= THIS_MODULE,