netdevsim: merge sdev into dev

As previously introduce dev which is mapped 1:1 to a bus device covers
the purpose of the original shared device, merge the sdev code into dev.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 33 insertions, 46 deletions

diff --git a/drivers/net/netdevsim/bpf.c b/drivers/net/netdevsim/bpf.c
index a93aafe87db3..89980b223adc 100644
--- a/drivers/net/netdevsim/bpf.c
+++ b/drivers/net/netdevsim/bpf.c
@@ -27,7 +27,7 @@
 	bpf_verifier_log_write(env, "[netdevsim] " fmt, ##__VA_ARGS__)
 
 struct nsim_bpf_bound_prog {
-	struct netdevsim_shared_dev *sdev;
+	struct nsim_dev *nsim_dev;
 	struct bpf_prog *prog;
 	struct dentry *ddir;
 	const char *state;
@@ -65,8 +65,8 @@ nsim_bpf_verify_insn(struct bpf_verifier_env *env, int insn_idx, int prev_insn)
 	struct nsim_bpf_bound_prog *state;
 
 	state = env->prog->aux->offload->dev_priv;
-	if (state->sdev->bpf_bind_verifier_delay && !insn_idx)
-		msleep(state->sdev->bpf_bind_verifier_delay);
+	if (state->nsim_dev->bpf_bind_verifier_delay && !insn_idx)
+		msleep(state->nsim_dev->bpf_bind_verifier_delay);
 
 	if (insn_idx == env->prog->len - 1)
 		pr_vlog(env, "Hello from netdevsim!\n");
@@ -213,7 +213,7 @@ nsim_xdp_set_prog(struct netdevsim *ns, struct netdev_bpf *bpf,
 	return 0;
 }
 
-static int nsim_bpf_create_prog(struct netdevsim_shared_dev *sdev,
+static int nsim_bpf_create_prog(struct nsim_dev *nsim_dev,
 				struct bpf_prog *prog)
 {
 	struct nsim_bpf_bound_prog *state;
@@ -223,13 +223,13 @@ static int nsim_bpf_create_prog(struct netdevsim_shared_dev *sdev,
 	if (!state)
 		return -ENOMEM;
 
-	state->sdev = sdev;
+	state->nsim_dev = nsim_dev;
 	state->prog = prog;
 	state->state = "verify";
 
 	/* Program id is not populated yet when we create the state. */
-	sprintf(name, "%u", sdev->prog_id_gen++);
-	state->ddir = debugfs_create_dir(name, sdev->ddir_bpf_bound_progs);
+	sprintf(name, "%u", nsim_dev->prog_id_gen++);
+	state->ddir = debugfs_create_dir(name, nsim_dev->ddir_bpf_bound_progs);
 	if (IS_ERR_OR_NULL(state->ddir)) {
 		kfree(state);
 		return -ENOMEM;
@@ -240,7 +240,7 @@ static int nsim_bpf_create_prog(struct netdevsim_shared_dev *sdev,
 			    &state->state, &nsim_bpf_string_fops);
 	debugfs_create_bool("loaded", 0400, state->ddir, &state->is_loaded);
 
-	list_add_tail(&state->l, &sdev->bpf_bound_progs);
+	list_add_tail(&state->l, &nsim_dev->bpf_bound_progs);
 
 	prog->aux->offload->dev_priv = state;
 
@@ -249,13 +249,13 @@ static int nsim_bpf_create_prog(struct netdevsim_shared_dev *sdev,
 
 static int nsim_bpf_verifier_prep(struct bpf_prog *prog)
 {
-	struct netdevsim_shared_dev *sdev =
+	struct nsim_dev *nsim_dev =
 			bpf_offload_dev_priv(prog->aux->offload->offdev);
 
-	if (!sdev->bpf_bind_accept)
+	if (!nsim_dev->bpf_bind_accept)
 		return -EOPNOTSUPP;
 
-	return nsim_bpf_create_prog(sdev, prog);
+	return nsim_bpf_create_prog(nsim_dev, prog);
 }
 
 static int nsim_bpf_translate(struct bpf_prog *prog)
@@ -514,7 +514,7 @@ nsim_bpf_map_alloc(struct netdevsim *ns, struct bpf_offloaded_map *offmap)
 	}
 
 	offmap->dev_ops = &nsim_bpf_map_ops;
-	list_add_tail(&nmap->l, &ns->sdev->bpf_bound_maps);
+	list_add_tail(&nmap->l, &ns->nsim_dev->bpf_bound_maps);
 
 	return 0;
 
@@ -578,51 +578,46 @@ int nsim_bpf(struct net_device *dev, struct netdev_bpf *bpf)
 	}
 }
 
-static int nsim_bpf_sdev_init(struct netdevsim_shared_dev *sdev)
+int nsim_bpf_dev_init(struct nsim_dev *nsim_dev)
 {
 	int err;
 
-	INIT_LIST_HEAD(&sdev->bpf_bound_progs);
-	INIT_LIST_HEAD(&sdev->bpf_bound_maps);
+	INIT_LIST_HEAD(&nsim_dev->bpf_bound_progs);
+	INIT_LIST_HEAD(&nsim_dev->bpf_bound_maps);
 
-	sdev->ddir_bpf_bound_progs =
-		debugfs_create_dir("bpf_bound_progs", sdev->ddir);
-	if (IS_ERR_OR_NULL(sdev->ddir_bpf_bound_progs))
+	nsim_dev->ddir_bpf_bound_progs = debugfs_create_dir("bpf_bound_progs",
+							    nsim_dev->ddir);
+	if (IS_ERR_OR_NULL(nsim_dev->ddir_bpf_bound_progs))
 		return -ENOMEM;
 
-	sdev->bpf_dev = bpf_offload_dev_create(&nsim_bpf_dev_ops, sdev);
-	err = PTR_ERR_OR_ZERO(sdev->bpf_dev);
+	nsim_dev->bpf_dev = bpf_offload_dev_create(&nsim_bpf_dev_ops, nsim_dev);
+	err = PTR_ERR_OR_ZERO(nsim_dev->bpf_dev);
 	if (err)
 		return err;
 
-	sdev->bpf_bind_accept = true;
-	debugfs_create_bool("bpf_bind_accept", 0600, sdev->ddir,
-			    &sdev->bpf_bind_accept);
-	debugfs_create_u32("bpf_bind_verifier_delay", 0600, sdev->ddir,
-			   &sdev->bpf_bind_verifier_delay);
+	nsim_dev->bpf_bind_accept = true;
+	debugfs_create_bool("bpf_bind_accept", 0600, nsim_dev->ddir,
+			    &nsim_dev->bpf_bind_accept);
+	debugfs_create_u32("bpf_bind_verifier_delay", 0600, nsim_dev->ddir,
+			   &nsim_dev->bpf_bind_verifier_delay);
 	return 0;
 }
 
-static void nsim_bpf_sdev_uninit(struct netdevsim_shared_dev *sdev)
+void nsim_bpf_dev_exit(struct nsim_dev *nsim_dev)
 {
-	WARN_ON(!list_empty(&sdev->bpf_bound_progs));
-	WARN_ON(!list_empty(&sdev->bpf_bound_maps));
-	bpf_offload_dev_destroy(sdev->bpf_dev);
+	WARN_ON(!list_empty(&nsim_dev->bpf_bound_progs));
+	WARN_ON(!list_empty(&nsim_dev->bpf_bound_maps));
+	bpf_offload_dev_destroy(nsim_dev->bpf_dev);
 }
 
 int nsim_bpf_init(struct netdevsim *ns)
 {
 	int err;
 
-	if (ns->sdev->refcnt == 1) {
-		err = nsim_bpf_sdev_init(ns->sdev);
-		if (err)
-			return err;
-	}
-
-	err = bpf_offload_dev_netdev_register(ns->sdev->bpf_dev, ns->netdev);
+	err = bpf_offload_dev_netdev_register(ns->nsim_dev->bpf_dev,
+					      ns->netdev);
 	if (err)
-		goto err_bpf_sdev_uninit;
+		return err;
 
 	debugfs_create_u32("bpf_offloaded_id", 0400, ns->ddir,
 			   &ns->bpf_offloaded_id);
@@ -644,11 +639,6 @@ int nsim_bpf_init(struct netdevsim *ns)
 			    &ns->bpf_map_accept);
 
 	return 0;
-
-err_bpf_sdev_uninit:
-	if (ns->sdev->refcnt == 1)
-		nsim_bpf_sdev_uninit(ns->sdev);
-	return err;
 }
 
 void nsim_bpf_uninit(struct netdevsim *ns)
@@ -656,8 +646,5 @@ void nsim_bpf_uninit(struct netdevsim *ns)
 	WARN_ON(ns->xdp.prog);
 	WARN_ON(ns->xdp_hw.prog);
 	WARN_ON(ns->bpf_offloaded);
-	bpf_offload_dev_netdev_unregister(ns->sdev->bpf_dev, ns->netdev);
-
-	if (ns->sdev->refcnt == 1)
-		nsim_bpf_sdev_uninit(ns->sdev);
+	bpf_offload_dev_netdev_unregister(ns->nsim_dev->bpf_dev, ns->netdev);
 }