1 files changed, 11 insertions, 144 deletions

diff --git a/drivers/net/netdevsim/bus.c b/drivers/net/netdevsim/bus.c
index 29f5627d11e6..25cb2e600d53 100644
--- a/drivers/net/netdevsim/bus.c
+++ b/drivers/net/netdevsim/bus.c
@@ -8,7 +8,6 @@
 #include <linux/kernel.h>
 #include <linux/list.h>
 #include <linux/mutex.h>
-#include <linux/rtnetlink.h>
 #include <linux/slab.h>
 #include <linux/sysfs.h>
 
@@ -24,39 +23,6 @@ static struct nsim_bus_dev *to_nsim_bus_dev(struct device *dev)
 	return container_of(dev, struct nsim_bus_dev, dev);
 }
 
-static int nsim_bus_dev_vfs_enable(struct nsim_bus_dev *nsim_bus_dev,
-				   unsigned int num_vfs)
-{
-	struct nsim_dev *nsim_dev;
-	int err = 0;
-
-	if (nsim_bus_dev->max_vfs < num_vfs)
-		return -ENOMEM;
-
-	if (!nsim_bus_dev->vfconfigs)
-		return -ENOMEM;
-	nsim_bus_dev->num_vfs = num_vfs;
-
-	nsim_dev = dev_get_drvdata(&nsim_bus_dev->dev);
-	if (nsim_esw_mode_is_switchdev(nsim_dev)) {
-		err = nsim_esw_switchdev_enable(nsim_dev, NULL);
-		if (err)
-			nsim_bus_dev->num_vfs = 0;
-	}
-
-	return err;
-}
-
-void nsim_bus_dev_vfs_disable(struct nsim_bus_dev *nsim_bus_dev)
-{
-	struct nsim_dev *nsim_dev;
-
-	nsim_bus_dev->num_vfs = 0;
-	nsim_dev = dev_get_drvdata(&nsim_bus_dev->dev);
-	if (nsim_esw_mode_is_switchdev(nsim_dev))
-		nsim_esw_legacy_enable(nsim_dev, NULL);
-}
-
 static ssize_t
 nsim_bus_dev_numvfs_store(struct device *dev, struct device_attribute *attr,
 			  const char *buf, size_t count)
@@ -69,27 +35,13 @@ nsim_bus_dev_numvfs_store(struct device *dev, struct device_attribute *attr,
 	if (ret)
 		return ret;
 
-	mutex_lock(&nsim_bus_dev->vfs_lock);
-	if (nsim_bus_dev->num_vfs == num_vfs)
-		goto exit_good;
-	if (nsim_bus_dev->num_vfs && num_vfs) {
-		ret = -EBUSY;
-		goto exit_unlock;
-	}
-
-	if (num_vfs) {
-		ret = nsim_bus_dev_vfs_enable(nsim_bus_dev, num_vfs);
-		if (ret)
-			goto exit_unlock;
-	} else {
-		nsim_bus_dev_vfs_disable(nsim_bus_dev);
-	}
-exit_good:
-	ret = count;
-exit_unlock:
-	mutex_unlock(&nsim_bus_dev->vfs_lock);
+	device_lock(dev);
+	ret = -ENOENT;
+	if (dev_get_drvdata(dev))
+		ret = nsim_drv_configure_vfs(nsim_bus_dev, num_vfs);
+	device_unlock(dev);
 
-	return ret;
+	return ret ? ret : count;
 }
 
 static ssize_t
@@ -105,79 +57,6 @@ static struct device_attribute nsim_bus_dev_numvfs_attr =
 	__ATTR(sriov_numvfs, 0664, nsim_bus_dev_numvfs_show,
 	       nsim_bus_dev_numvfs_store);
 
-ssize_t nsim_bus_dev_max_vfs_read(struct file *file,
-				  char __user *data,
-				  size_t count, loff_t *ppos)
-{
-	struct nsim_bus_dev *nsim_bus_dev = file->private_data;
-	char buf[11];
-	ssize_t len;
-
-	len = snprintf(buf, sizeof(buf), "%u\n", nsim_bus_dev->max_vfs);
-	if (len < 0)
-		return len;
-
-	return simple_read_from_buffer(data, count, ppos, buf, len);
-}
-
-ssize_t nsim_bus_dev_max_vfs_write(struct file *file,
-				   const char __user *data,
-				   size_t count, loff_t *ppos)
-{
-	struct nsim_bus_dev *nsim_bus_dev = file->private_data;
-	struct nsim_vf_config *vfconfigs;
-	ssize_t ret;
-	char buf[10];
-	u32 val;
-
-	if (*ppos != 0)
-		return 0;
-
-	if (count >= sizeof(buf))
-		return -ENOSPC;
-
-	mutex_lock(&nsim_bus_dev->vfs_lock);
-	/* Reject if VFs are configured */
-	if (nsim_bus_dev->num_vfs) {
-		ret = -EBUSY;
-		goto unlock;
-	}
-
-	ret = copy_from_user(buf, data, count);
-	if (ret) {
-		ret = -EFAULT;
-		goto unlock;
-	}
-
-	buf[count] = '\0';
-	ret = kstrtouint(buf, 10, &val);
-	if (ret) {
-		ret = -EIO;
-		goto unlock;
-	}
-
-	/* max_vfs limited by the maximum number of provided port indexes */
-	if (val > NSIM_DEV_VF_PORT_INDEX_MAX - NSIM_DEV_VF_PORT_INDEX_BASE) {
-		ret = -ERANGE;
-		goto unlock;
-	}
-
-	vfconfigs = kcalloc(val, sizeof(struct nsim_vf_config), GFP_KERNEL | __GFP_NOWARN);
-	if (!vfconfigs) {
-		ret = -ENOMEM;
-		goto unlock;
-	}
-
-	kfree(nsim_bus_dev->vfconfigs);
-	nsim_bus_dev->vfconfigs = vfconfigs;
-	nsim_bus_dev->max_vfs = val;
-	*ppos += count;
-	ret = count;
-unlock:
-	mutex_unlock(&nsim_bus_dev->vfs_lock);
-	return ret;
-}
-
 static ssize_t
 new_port_store(struct device *dev, struct device_attribute *attr,
 	       const char *buf, size_t count)
@@ -201,7 +80,7 @@ new_port_store(struct device *dev, struct device_attribute *attr,
 		return -EBUSY;
 	}
 
-	ret = nsim_dev_port_add(nsim_bus_dev, NSIM_DEV_PORT_TYPE_PF, port_index);
+	ret = nsim_drv_port_add(nsim_bus_dev, NSIM_DEV_PORT_TYPE_PF, port_index);
 	mutex_unlock(&nsim_bus_dev->nsim_bus_reload_lock);
 	return ret ? ret : count;
 }
@@ -231,7 +110,7 @@ del_port_store(struct device *dev, struct device_attribute *attr,
 		return -EBUSY;
 	}
 
-	ret = nsim_dev_port_del(nsim_bus_dev, NSIM_DEV_PORT_TYPE_PF, port_index);
+	ret = nsim_drv_port_del(nsim_bus_dev, NSIM_DEV_PORT_TYPE_PF, port_index);
 	mutex_unlock(&nsim_bus_dev->nsim_bus_reload_lock);
 	return ret ? ret : count;
 }
@@ -371,14 +250,14 @@ static int nsim_bus_probe(struct device *dev)
 {
 	struct nsim_bus_dev *nsim_bus_dev = to_nsim_bus_dev(dev);
 
-	return nsim_dev_probe(nsim_bus_dev);
+	return nsim_drv_probe(nsim_bus_dev);
 }
 
 static void nsim_bus_remove(struct device *dev)
 {
 	struct nsim_bus_dev *nsim_bus_dev = to_nsim_bus_dev(dev);
 
-	nsim_dev_remove(nsim_bus_dev);
+	nsim_drv_remove(nsim_bus_dev);
 }
 
 static int nsim_num_vf(struct device *dev)
@@ -420,26 +299,15 @@ nsim_bus_dev_new(unsigned int id, unsigned int port_count, unsigned int num_queu
 	nsim_bus_dev->initial_net = current->nsproxy->net_ns;
 	nsim_bus_dev->max_vfs = NSIM_BUS_DEV_MAX_VFS;
 	mutex_init(&nsim_bus_dev->nsim_bus_reload_lock);
-	mutex_init(&nsim_bus_dev->vfs_lock);
 	/* Disallow using nsim_bus_dev */
 	smp_store_release(&nsim_bus_dev->init, false);
 
-	nsim_bus_dev->vfconfigs = kcalloc(nsim_bus_dev->max_vfs,
-					  sizeof(struct nsim_vf_config),
-					  GFP_KERNEL | __GFP_NOWARN);
-	if (!nsim_bus_dev->vfconfigs) {
-		err = -ENOMEM;
-		goto err_nsim_bus_dev_id_free;
-	}
-
 	err = device_register(&nsim_bus_dev->dev);
 	if (err)
-		goto err_nsim_vfs_free;
+		goto err_nsim_bus_dev_id_free;
 
 	return nsim_bus_dev;
 
-err_nsim_vfs_free:
-	kfree(nsim_bus_dev->vfconfigs);
 err_nsim_bus_dev_id_free:
 	ida_free(&nsim_bus_dev_ids, nsim_bus_dev->dev.id);
 err_nsim_bus_dev_free:
@@ -453,7 +321,6 @@ static void nsim_bus_dev_del(struct nsim_bus_dev *nsim_bus_dev)
 	smp_store_release(&nsim_bus_dev->init, false);
 	device_unregister(&nsim_bus_dev->dev);
 	ida_free(&nsim_bus_dev_ids, nsim_bus_dev->dev.id);
-	kfree(nsim_bus_dev->vfconfigs);
 	kfree(nsim_bus_dev);
 }