From c33616109a63aa64235108fb7f3b60cb2117ef3b Mon Sep 17 00:00:00 2001 From: Jakub Kicinski Date: Fri, 1 Dec 2017 15:09:02 -0800 Subject: [PATCH] net: dummy: remove fake SR-IOV functionality netdevsim driver seems like a better place for fake SR-IOV functionality. Remove the code previously added to dummy. Signed-off-by: Jakub Kicinski Reviewed-by: Quentin Monnet Acked-by: Phil Sutter Signed-off-by: Daniel Borkmann --- drivers/net/dummy.c | 215 +------------------------------------------- 1 file changed, 1 insertion(+), 214 deletions(-) diff --git a/drivers/net/dummy.c b/drivers/net/dummy.c index 58483af80bdb..30b1c8512049 100644 --- a/drivers/net/dummy.c +++ b/drivers/net/dummy.c @@ -42,48 +42,7 @@ #define DRV_NAME "dummy" #define DRV_VERSION "1.0" -#undef pr_fmt -#define pr_fmt(fmt) DRV_NAME ": " fmt - static int numdummies = 1; -static int num_vfs; - -struct vf_data_storage { - u8 vf_mac[ETH_ALEN]; - u16 pf_vlan; /* When set, guest VLAN config not allowed. */ - u16 pf_qos; - __be16 vlan_proto; - u16 min_tx_rate; - u16 max_tx_rate; - u8 spoofchk_enabled; - bool rss_query_enabled; - u8 trusted; - int link_state; -}; - -struct dummy_priv { - struct vf_data_storage *vfinfo; -}; - -static int dummy_num_vf(struct device *dev) -{ - return num_vfs; -} - -static struct bus_type dummy_bus = { - .name = "dummy", - .num_vf = dummy_num_vf, -}; - -static void release_dummy_parent(struct device *dev) -{ -} - -static struct device dummy_parent = { - .init_name = "dummy", - .bus = &dummy_bus, - .release = release_dummy_parent, -}; /* fake multicast ability */ static void set_multicast_list(struct net_device *dev) @@ -133,25 +92,10 @@ static netdev_tx_t dummy_xmit(struct sk_buff *skb, struct net_device *dev) static int dummy_dev_init(struct net_device *dev) { - struct dummy_priv *priv = netdev_priv(dev); - dev->dstats = netdev_alloc_pcpu_stats(struct pcpu_dstats); if (!dev->dstats) return -ENOMEM; - priv->vfinfo = NULL; - - if (!num_vfs) - return 0; - - dev->dev.parent = &dummy_parent; - priv->vfinfo = kcalloc(num_vfs, sizeof(struct vf_data_storage), - GFP_KERNEL); - if (!priv->vfinfo) { - free_percpu(dev->dstats); - return -ENOMEM; - } - return 0; } @@ -169,117 +113,6 @@ static int dummy_change_carrier(struct net_device *dev, bool new_carrier) return 0; } -static int dummy_set_vf_mac(struct net_device *dev, int vf, u8 *mac) -{ - struct dummy_priv *priv = netdev_priv(dev); - - if (!is_valid_ether_addr(mac) || (vf >= num_vfs)) - return -EINVAL; - - memcpy(priv->vfinfo[vf].vf_mac, mac, ETH_ALEN); - - return 0; -} - -static int dummy_set_vf_vlan(struct net_device *dev, int vf, - u16 vlan, u8 qos, __be16 vlan_proto) -{ - struct dummy_priv *priv = netdev_priv(dev); - - if ((vf >= num_vfs) || (vlan > 4095) || (qos > 7)) - return -EINVAL; - - priv->vfinfo[vf].pf_vlan = vlan; - priv->vfinfo[vf].pf_qos = qos; - priv->vfinfo[vf].vlan_proto = vlan_proto; - - return 0; -} - -static int dummy_set_vf_rate(struct net_device *dev, int vf, int min, int max) -{ - struct dummy_priv *priv = netdev_priv(dev); - - if (vf >= num_vfs) - return -EINVAL; - - priv->vfinfo[vf].min_tx_rate = min; - priv->vfinfo[vf].max_tx_rate = max; - - return 0; -} - -static int dummy_set_vf_spoofchk(struct net_device *dev, int vf, bool val) -{ - struct dummy_priv *priv = netdev_priv(dev); - - if (vf >= num_vfs) - return -EINVAL; - - priv->vfinfo[vf].spoofchk_enabled = val; - - return 0; -} - -static int dummy_set_vf_rss_query_en(struct net_device *dev, int vf, bool val) -{ - struct dummy_priv *priv = netdev_priv(dev); - - if (vf >= num_vfs) - return -EINVAL; - - priv->vfinfo[vf].rss_query_enabled = val; - - return 0; -} - -static int dummy_set_vf_trust(struct net_device *dev, int vf, bool val) -{ - struct dummy_priv *priv = netdev_priv(dev); - - if (vf >= num_vfs) - return -EINVAL; - - priv->vfinfo[vf].trusted = val; - - return 0; -} - -static int dummy_get_vf_config(struct net_device *dev, - int vf, struct ifla_vf_info *ivi) -{ - struct dummy_priv *priv = netdev_priv(dev); - - if (vf >= num_vfs) - return -EINVAL; - - ivi->vf = vf; - memcpy(&ivi->mac, priv->vfinfo[vf].vf_mac, ETH_ALEN); - ivi->vlan = priv->vfinfo[vf].pf_vlan; - ivi->qos = priv->vfinfo[vf].pf_qos; - ivi->spoofchk = priv->vfinfo[vf].spoofchk_enabled; - ivi->linkstate = priv->vfinfo[vf].link_state; - ivi->min_tx_rate = priv->vfinfo[vf].min_tx_rate; - ivi->max_tx_rate = priv->vfinfo[vf].max_tx_rate; - ivi->rss_query_en = priv->vfinfo[vf].rss_query_enabled; - ivi->trusted = priv->vfinfo[vf].trusted; - ivi->vlan_proto = priv->vfinfo[vf].vlan_proto; - - return 0; -} - -static int dummy_set_vf_link_state(struct net_device *dev, int vf, int state) -{ - struct dummy_priv *priv = netdev_priv(dev); - - if (vf >= num_vfs) - return -EINVAL; - - priv->vfinfo[vf].link_state = state; - - return 0; -} - static const struct net_device_ops dummy_netdev_ops = { .ndo_init = dummy_dev_init, .ndo_uninit = dummy_dev_uninit, @@ -289,14 +122,6 @@ static const struct net_device_ops dummy_netdev_ops = { .ndo_set_mac_address = eth_mac_addr, .ndo_get_stats64 = dummy_get_stats64, .ndo_change_carrier = dummy_change_carrier, - .ndo_set_vf_mac = dummy_set_vf_mac, - .ndo_set_vf_vlan = dummy_set_vf_vlan, - .ndo_set_vf_rate = dummy_set_vf_rate, - .ndo_set_vf_spoofchk = dummy_set_vf_spoofchk, - .ndo_set_vf_trust = dummy_set_vf_trust, - .ndo_get_vf_config = dummy_get_vf_config, - .ndo_set_vf_link_state = dummy_set_vf_link_state, - .ndo_set_vf_rss_query_en = dummy_set_vf_rss_query_en, }; static void dummy_get_drvinfo(struct net_device *dev, @@ -323,13 +148,6 @@ static const struct ethtool_ops dummy_ethtool_ops = { .get_ts_info = dummy_get_ts_info, }; -static void dummy_free_netdev(struct net_device *dev) -{ - struct dummy_priv *priv = netdev_priv(dev); - - kfree(priv->vfinfo); -} - static void dummy_setup(struct net_device *dev) { ether_setup(dev); @@ -338,7 +156,6 @@ static void dummy_setup(struct net_device *dev) dev->netdev_ops = &dummy_netdev_ops; dev->ethtool_ops = &dummy_ethtool_ops; dev->needs_free_netdev = true; - dev->priv_destructor = dummy_free_netdev; /* Fill in device structure with ethernet-generic values. */ dev->flags |= IFF_NOARP; @@ -370,7 +187,6 @@ static int dummy_validate(struct nlattr *tb[], struct nlattr *data[], static struct rtnl_link_ops dummy_link_ops __read_mostly = { .kind = DRV_NAME, - .priv_size = sizeof(struct dummy_priv), .setup = dummy_setup, .validate = dummy_validate, }; @@ -379,16 +195,12 @@ static struct rtnl_link_ops dummy_link_ops __read_mostly = { module_param(numdummies, int, 0); MODULE_PARM_DESC(numdummies, "Number of dummy pseudo devices"); -module_param(num_vfs, int, 0); -MODULE_PARM_DESC(num_vfs, "Number of dummy VFs per dummy device"); - static int __init dummy_init_one(void) { struct net_device *dev_dummy; int err; - dev_dummy = alloc_netdev(sizeof(struct dummy_priv), - "dummy%d", NET_NAME_ENUM, dummy_setup); + dev_dummy = alloc_netdev(0, "dummy%d", NET_NAME_ENUM, dummy_setup); if (!dev_dummy) return -ENOMEM; @@ -407,21 +219,6 @@ static int __init dummy_init_module(void) { int i, err = 0; - if (num_vfs) { - err = bus_register(&dummy_bus); - if (err < 0) { - pr_err("registering dummy bus failed\n"); - return err; - } - - err = device_register(&dummy_parent); - if (err < 0) { - pr_err("registering dummy parent device failed\n"); - bus_unregister(&dummy_bus); - return err; - } - } - rtnl_lock(); err = __rtnl_link_register(&dummy_link_ops); if (err < 0) @@ -437,22 +234,12 @@ static int __init dummy_init_module(void) out: rtnl_unlock(); - if (err && num_vfs) { - device_unregister(&dummy_parent); - bus_unregister(&dummy_bus); - } - return err; } static void __exit dummy_cleanup_module(void) { rtnl_link_unregister(&dummy_link_ops); - - if (num_vfs) { - device_unregister(&dummy_parent); - bus_unregister(&dummy_bus); - } } module_init(dummy_init_module); -- 2.30.2