19ce48e5aSMichal Kubecek // SPDX-License-Identifier: GPL-2.0-or-later 29ce48e5aSMichal Kubecek /* 39ce48e5aSMichal Kubecek * net/core/ethtool.c - Ethtool ioctl handler 49ce48e5aSMichal Kubecek * Copyright (c) 2003 Matthew Wilcox <matthew@wil.cx> 59ce48e5aSMichal Kubecek * 69ce48e5aSMichal Kubecek * This file is where we call all the ethtool_ops commands to get 79ce48e5aSMichal Kubecek * the information ethtool needs. 89ce48e5aSMichal Kubecek */ 99ce48e5aSMichal Kubecek 10dd98d289SArnd Bergmann #include <linux/compat.h> 119ce48e5aSMichal Kubecek #include <linux/module.h> 129ce48e5aSMichal Kubecek #include <linux/types.h> 139ce48e5aSMichal Kubecek #include <linux/capability.h> 149ce48e5aSMichal Kubecek #include <linux/errno.h> 159ce48e5aSMichal Kubecek #include <linux/ethtool.h> 169ce48e5aSMichal Kubecek #include <linux/netdevice.h> 179ce48e5aSMichal Kubecek #include <linux/net_tstamp.h> 189ce48e5aSMichal Kubecek #include <linux/phy.h> 199ce48e5aSMichal Kubecek #include <linux/bitops.h> 209ce48e5aSMichal Kubecek #include <linux/uaccess.h> 219ce48e5aSMichal Kubecek #include <linux/vmalloc.h> 229ce48e5aSMichal Kubecek #include <linux/sfp.h> 239ce48e5aSMichal Kubecek #include <linux/slab.h> 249ce48e5aSMichal Kubecek #include <linux/rtnetlink.h> 259ce48e5aSMichal Kubecek #include <linux/sched/signal.h> 269ce48e5aSMichal Kubecek #include <linux/net.h> 279ce48e5aSMichal Kubecek #include <net/devlink.h> 28a71506a4SMagnus Karlsson #include <net/xdp_sock_drv.h> 299ce48e5aSMichal Kubecek #include <net/flow_offload.h> 3073286734SMichal Kubecek #include <linux/ethtool_netlink.h> 311c79031fSLeon Romanovsky #include <generated/utsrelease.h> 32d44e1310SMichal Kubecek #include "common.h" 33d44e1310SMichal Kubecek 349ce48e5aSMichal Kubecek /* 359ce48e5aSMichal Kubecek * Some useful ethtool_ops methods that're device independent. 369ce48e5aSMichal Kubecek * If we find that all drivers want to do the same thing here, 379ce48e5aSMichal Kubecek * we can turn these into dev_() function calls. 389ce48e5aSMichal Kubecek */ 399ce48e5aSMichal Kubecek 409ce48e5aSMichal Kubecek u32 ethtool_op_get_link(struct net_device *dev) 419ce48e5aSMichal Kubecek { 429ce48e5aSMichal Kubecek return netif_carrier_ok(dev) ? 1 : 0; 439ce48e5aSMichal Kubecek } 449ce48e5aSMichal Kubecek EXPORT_SYMBOL(ethtool_op_get_link); 459ce48e5aSMichal Kubecek 469ce48e5aSMichal Kubecek int ethtool_op_get_ts_info(struct net_device *dev, struct ethtool_ts_info *info) 479ce48e5aSMichal Kubecek { 489ce48e5aSMichal Kubecek info->so_timestamping = 499ce48e5aSMichal Kubecek SOF_TIMESTAMPING_TX_SOFTWARE | 509ce48e5aSMichal Kubecek SOF_TIMESTAMPING_RX_SOFTWARE | 519ce48e5aSMichal Kubecek SOF_TIMESTAMPING_SOFTWARE; 529ce48e5aSMichal Kubecek info->phc_index = -1; 539ce48e5aSMichal Kubecek return 0; 549ce48e5aSMichal Kubecek } 559ce48e5aSMichal Kubecek EXPORT_SYMBOL(ethtool_op_get_ts_info); 569ce48e5aSMichal Kubecek 579ce48e5aSMichal Kubecek /* Handlers for each ethtool command */ 589ce48e5aSMichal Kubecek 599ce48e5aSMichal Kubecek static int ethtool_get_features(struct net_device *dev, void __user *useraddr) 609ce48e5aSMichal Kubecek { 619ce48e5aSMichal Kubecek struct ethtool_gfeatures cmd = { 629ce48e5aSMichal Kubecek .cmd = ETHTOOL_GFEATURES, 639ce48e5aSMichal Kubecek .size = ETHTOOL_DEV_FEATURE_WORDS, 649ce48e5aSMichal Kubecek }; 659ce48e5aSMichal Kubecek struct ethtool_get_features_block features[ETHTOOL_DEV_FEATURE_WORDS]; 669ce48e5aSMichal Kubecek u32 __user *sizeaddr; 679ce48e5aSMichal Kubecek u32 copy_size; 689ce48e5aSMichal Kubecek int i; 699ce48e5aSMichal Kubecek 709ce48e5aSMichal Kubecek /* in case feature bits run out again */ 719ce48e5aSMichal Kubecek BUILD_BUG_ON(ETHTOOL_DEV_FEATURE_WORDS * sizeof(u32) > sizeof(netdev_features_t)); 729ce48e5aSMichal Kubecek 739ce48e5aSMichal Kubecek for (i = 0; i < ETHTOOL_DEV_FEATURE_WORDS; ++i) { 749ce48e5aSMichal Kubecek features[i].available = (u32)(dev->hw_features >> (32 * i)); 759ce48e5aSMichal Kubecek features[i].requested = (u32)(dev->wanted_features >> (32 * i)); 769ce48e5aSMichal Kubecek features[i].active = (u32)(dev->features >> (32 * i)); 779ce48e5aSMichal Kubecek features[i].never_changed = 789ce48e5aSMichal Kubecek (u32)(NETIF_F_NEVER_CHANGE >> (32 * i)); 799ce48e5aSMichal Kubecek } 809ce48e5aSMichal Kubecek 819ce48e5aSMichal Kubecek sizeaddr = useraddr + offsetof(struct ethtool_gfeatures, size); 829ce48e5aSMichal Kubecek if (get_user(copy_size, sizeaddr)) 839ce48e5aSMichal Kubecek return -EFAULT; 849ce48e5aSMichal Kubecek 859ce48e5aSMichal Kubecek if (copy_size > ETHTOOL_DEV_FEATURE_WORDS) 869ce48e5aSMichal Kubecek copy_size = ETHTOOL_DEV_FEATURE_WORDS; 879ce48e5aSMichal Kubecek 889ce48e5aSMichal Kubecek if (copy_to_user(useraddr, &cmd, sizeof(cmd))) 899ce48e5aSMichal Kubecek return -EFAULT; 909ce48e5aSMichal Kubecek useraddr += sizeof(cmd); 919ce48e5aSMichal Kubecek if (copy_to_user(useraddr, features, copy_size * sizeof(*features))) 929ce48e5aSMichal Kubecek return -EFAULT; 939ce48e5aSMichal Kubecek 949ce48e5aSMichal Kubecek return 0; 959ce48e5aSMichal Kubecek } 969ce48e5aSMichal Kubecek 979ce48e5aSMichal Kubecek static int ethtool_set_features(struct net_device *dev, void __user *useraddr) 989ce48e5aSMichal Kubecek { 999ce48e5aSMichal Kubecek struct ethtool_sfeatures cmd; 1009ce48e5aSMichal Kubecek struct ethtool_set_features_block features[ETHTOOL_DEV_FEATURE_WORDS]; 1019ce48e5aSMichal Kubecek netdev_features_t wanted = 0, valid = 0; 1029ce48e5aSMichal Kubecek int i, ret = 0; 1039ce48e5aSMichal Kubecek 1049ce48e5aSMichal Kubecek if (copy_from_user(&cmd, useraddr, sizeof(cmd))) 1059ce48e5aSMichal Kubecek return -EFAULT; 1069ce48e5aSMichal Kubecek useraddr += sizeof(cmd); 1079ce48e5aSMichal Kubecek 1089ce48e5aSMichal Kubecek if (cmd.size != ETHTOOL_DEV_FEATURE_WORDS) 1099ce48e5aSMichal Kubecek return -EINVAL; 1109ce48e5aSMichal Kubecek 1119ce48e5aSMichal Kubecek if (copy_from_user(features, useraddr, sizeof(features))) 1129ce48e5aSMichal Kubecek return -EFAULT; 1139ce48e5aSMichal Kubecek 1149ce48e5aSMichal Kubecek for (i = 0; i < ETHTOOL_DEV_FEATURE_WORDS; ++i) { 1159ce48e5aSMichal Kubecek valid |= (netdev_features_t)features[i].valid << (32 * i); 1169ce48e5aSMichal Kubecek wanted |= (netdev_features_t)features[i].requested << (32 * i); 1179ce48e5aSMichal Kubecek } 1189ce48e5aSMichal Kubecek 1199ce48e5aSMichal Kubecek if (valid & ~NETIF_F_ETHTOOL_BITS) 1209ce48e5aSMichal Kubecek return -EINVAL; 1219ce48e5aSMichal Kubecek 1229ce48e5aSMichal Kubecek if (valid & ~dev->hw_features) { 1239ce48e5aSMichal Kubecek valid &= dev->hw_features; 1249ce48e5aSMichal Kubecek ret |= ETHTOOL_F_UNSUPPORTED; 1259ce48e5aSMichal Kubecek } 1269ce48e5aSMichal Kubecek 1279ce48e5aSMichal Kubecek dev->wanted_features &= ~valid; 1289ce48e5aSMichal Kubecek dev->wanted_features |= wanted & valid; 1299ce48e5aSMichal Kubecek __netdev_update_features(dev); 1309ce48e5aSMichal Kubecek 1319ce48e5aSMichal Kubecek if ((dev->wanted_features ^ dev->features) & valid) 1329ce48e5aSMichal Kubecek ret |= ETHTOOL_F_WISH; 1339ce48e5aSMichal Kubecek 1349ce48e5aSMichal Kubecek return ret; 1359ce48e5aSMichal Kubecek } 1369ce48e5aSMichal Kubecek 1379ce48e5aSMichal Kubecek static int __ethtool_get_sset_count(struct net_device *dev, int sset) 1389ce48e5aSMichal Kubecek { 13917809516SFlorian Fainelli const struct ethtool_phy_ops *phy_ops = ethtool_phy_ops; 1409ce48e5aSMichal Kubecek const struct ethtool_ops *ops = dev->ethtool_ops; 1419ce48e5aSMichal Kubecek 1429ce48e5aSMichal Kubecek if (sset == ETH_SS_FEATURES) 1439ce48e5aSMichal Kubecek return ARRAY_SIZE(netdev_features_strings); 1449ce48e5aSMichal Kubecek 1459ce48e5aSMichal Kubecek if (sset == ETH_SS_RSS_HASH_FUNCS) 1469ce48e5aSMichal Kubecek return ARRAY_SIZE(rss_hash_func_strings); 1479ce48e5aSMichal Kubecek 1489ce48e5aSMichal Kubecek if (sset == ETH_SS_TUNABLES) 1499ce48e5aSMichal Kubecek return ARRAY_SIZE(tunable_strings); 1509ce48e5aSMichal Kubecek 1519ce48e5aSMichal Kubecek if (sset == ETH_SS_PHY_TUNABLES) 1529ce48e5aSMichal Kubecek return ARRAY_SIZE(phy_tunable_strings); 1539ce48e5aSMichal Kubecek 1549ce48e5aSMichal Kubecek if (sset == ETH_SS_PHY_STATS && dev->phydev && 15517809516SFlorian Fainelli !ops->get_ethtool_phy_stats && 15617809516SFlorian Fainelli phy_ops && phy_ops->get_sset_count) 15717809516SFlorian Fainelli return phy_ops->get_sset_count(dev->phydev); 1589ce48e5aSMichal Kubecek 159428c122fSMichal Kubecek if (sset == ETH_SS_LINK_MODES) 160428c122fSMichal Kubecek return __ETHTOOL_LINK_MODE_MASK_NBITS; 161428c122fSMichal Kubecek 1629ce48e5aSMichal Kubecek if (ops->get_sset_count && ops->get_strings) 1639ce48e5aSMichal Kubecek return ops->get_sset_count(dev, sset); 1649ce48e5aSMichal Kubecek else 1659ce48e5aSMichal Kubecek return -EOPNOTSUPP; 1669ce48e5aSMichal Kubecek } 1679ce48e5aSMichal Kubecek 1689ce48e5aSMichal Kubecek static void __ethtool_get_strings(struct net_device *dev, 1699ce48e5aSMichal Kubecek u32 stringset, u8 *data) 1709ce48e5aSMichal Kubecek { 17117809516SFlorian Fainelli const struct ethtool_phy_ops *phy_ops = ethtool_phy_ops; 1729ce48e5aSMichal Kubecek const struct ethtool_ops *ops = dev->ethtool_ops; 1739ce48e5aSMichal Kubecek 1749ce48e5aSMichal Kubecek if (stringset == ETH_SS_FEATURES) 1759ce48e5aSMichal Kubecek memcpy(data, netdev_features_strings, 1769ce48e5aSMichal Kubecek sizeof(netdev_features_strings)); 1779ce48e5aSMichal Kubecek else if (stringset == ETH_SS_RSS_HASH_FUNCS) 1789ce48e5aSMichal Kubecek memcpy(data, rss_hash_func_strings, 1799ce48e5aSMichal Kubecek sizeof(rss_hash_func_strings)); 1809ce48e5aSMichal Kubecek else if (stringset == ETH_SS_TUNABLES) 1819ce48e5aSMichal Kubecek memcpy(data, tunable_strings, sizeof(tunable_strings)); 1829ce48e5aSMichal Kubecek else if (stringset == ETH_SS_PHY_TUNABLES) 1839ce48e5aSMichal Kubecek memcpy(data, phy_tunable_strings, sizeof(phy_tunable_strings)); 1849ce48e5aSMichal Kubecek else if (stringset == ETH_SS_PHY_STATS && dev->phydev && 18517809516SFlorian Fainelli !ops->get_ethtool_phy_stats && phy_ops && 18617809516SFlorian Fainelli phy_ops->get_strings) 18717809516SFlorian Fainelli phy_ops->get_strings(dev->phydev, data); 188428c122fSMichal Kubecek else if (stringset == ETH_SS_LINK_MODES) 189428c122fSMichal Kubecek memcpy(data, link_mode_names, 190428c122fSMichal Kubecek __ETHTOOL_LINK_MODE_MASK_NBITS * ETH_GSTRING_LEN); 1919ce48e5aSMichal Kubecek else 1929ce48e5aSMichal Kubecek /* ops->get_strings is valid because checked earlier */ 1939ce48e5aSMichal Kubecek ops->get_strings(dev, stringset, data); 1949ce48e5aSMichal Kubecek } 1959ce48e5aSMichal Kubecek 1969ce48e5aSMichal Kubecek static netdev_features_t ethtool_get_feature_mask(u32 eth_cmd) 1979ce48e5aSMichal Kubecek { 1989ce48e5aSMichal Kubecek /* feature masks of legacy discrete ethtool ops */ 1999ce48e5aSMichal Kubecek 2009ce48e5aSMichal Kubecek switch (eth_cmd) { 2019ce48e5aSMichal Kubecek case ETHTOOL_GTXCSUM: 2029ce48e5aSMichal Kubecek case ETHTOOL_STXCSUM: 2039d648fb5SVladyslav Tarasiuk return NETIF_F_CSUM_MASK | NETIF_F_FCOE_CRC | 204f70bb065SMichal Kubecek NETIF_F_SCTP_CRC; 2059ce48e5aSMichal Kubecek case ETHTOOL_GRXCSUM: 2069ce48e5aSMichal Kubecek case ETHTOOL_SRXCSUM: 2079ce48e5aSMichal Kubecek return NETIF_F_RXCSUM; 2089ce48e5aSMichal Kubecek case ETHTOOL_GSG: 2099ce48e5aSMichal Kubecek case ETHTOOL_SSG: 210f70bb065SMichal Kubecek return NETIF_F_SG | NETIF_F_FRAGLIST; 2119ce48e5aSMichal Kubecek case ETHTOOL_GTSO: 2129ce48e5aSMichal Kubecek case ETHTOOL_STSO: 2139ce48e5aSMichal Kubecek return NETIF_F_ALL_TSO; 2149ce48e5aSMichal Kubecek case ETHTOOL_GGSO: 2159ce48e5aSMichal Kubecek case ETHTOOL_SGSO: 2169ce48e5aSMichal Kubecek return NETIF_F_GSO; 2179ce48e5aSMichal Kubecek case ETHTOOL_GGRO: 2189ce48e5aSMichal Kubecek case ETHTOOL_SGRO: 2199ce48e5aSMichal Kubecek return NETIF_F_GRO; 2209ce48e5aSMichal Kubecek default: 2219ce48e5aSMichal Kubecek BUG(); 2229ce48e5aSMichal Kubecek } 2239ce48e5aSMichal Kubecek } 2249ce48e5aSMichal Kubecek 2259ce48e5aSMichal Kubecek static int ethtool_get_one_feature(struct net_device *dev, 2269ce48e5aSMichal Kubecek char __user *useraddr, u32 ethcmd) 2279ce48e5aSMichal Kubecek { 2289ce48e5aSMichal Kubecek netdev_features_t mask = ethtool_get_feature_mask(ethcmd); 2299ce48e5aSMichal Kubecek struct ethtool_value edata = { 2309ce48e5aSMichal Kubecek .cmd = ethcmd, 2319ce48e5aSMichal Kubecek .data = !!(dev->features & mask), 2329ce48e5aSMichal Kubecek }; 2339ce48e5aSMichal Kubecek 2349ce48e5aSMichal Kubecek if (copy_to_user(useraddr, &edata, sizeof(edata))) 2359ce48e5aSMichal Kubecek return -EFAULT; 2369ce48e5aSMichal Kubecek return 0; 2379ce48e5aSMichal Kubecek } 2389ce48e5aSMichal Kubecek 2399ce48e5aSMichal Kubecek static int ethtool_set_one_feature(struct net_device *dev, 2409ce48e5aSMichal Kubecek void __user *useraddr, u32 ethcmd) 2419ce48e5aSMichal Kubecek { 2429ce48e5aSMichal Kubecek struct ethtool_value edata; 2439ce48e5aSMichal Kubecek netdev_features_t mask; 2449ce48e5aSMichal Kubecek 2459ce48e5aSMichal Kubecek if (copy_from_user(&edata, useraddr, sizeof(edata))) 2469ce48e5aSMichal Kubecek return -EFAULT; 2479ce48e5aSMichal Kubecek 2489ce48e5aSMichal Kubecek mask = ethtool_get_feature_mask(ethcmd); 2499ce48e5aSMichal Kubecek mask &= dev->hw_features; 2509ce48e5aSMichal Kubecek if (!mask) 2519ce48e5aSMichal Kubecek return -EOPNOTSUPP; 2529ce48e5aSMichal Kubecek 2539ce48e5aSMichal Kubecek if (edata.data) 2549ce48e5aSMichal Kubecek dev->wanted_features |= mask; 2559ce48e5aSMichal Kubecek else 2569ce48e5aSMichal Kubecek dev->wanted_features &= ~mask; 2579ce48e5aSMichal Kubecek 2589ce48e5aSMichal Kubecek __netdev_update_features(dev); 2599ce48e5aSMichal Kubecek 2609ce48e5aSMichal Kubecek return 0; 2619ce48e5aSMichal Kubecek } 2629ce48e5aSMichal Kubecek 2639ce48e5aSMichal Kubecek #define ETH_ALL_FLAGS (ETH_FLAG_LRO | ETH_FLAG_RXVLAN | ETH_FLAG_TXVLAN | \ 2649ce48e5aSMichal Kubecek ETH_FLAG_NTUPLE | ETH_FLAG_RXHASH) 2659ce48e5aSMichal Kubecek #define ETH_ALL_FEATURES (NETIF_F_LRO | NETIF_F_HW_VLAN_CTAG_RX | \ 2669ce48e5aSMichal Kubecek NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_NTUPLE | \ 2679ce48e5aSMichal Kubecek NETIF_F_RXHASH) 2689ce48e5aSMichal Kubecek 2699ce48e5aSMichal Kubecek static u32 __ethtool_get_flags(struct net_device *dev) 2709ce48e5aSMichal Kubecek { 2719ce48e5aSMichal Kubecek u32 flags = 0; 2729ce48e5aSMichal Kubecek 2739ce48e5aSMichal Kubecek if (dev->features & NETIF_F_LRO) 2749ce48e5aSMichal Kubecek flags |= ETH_FLAG_LRO; 2759ce48e5aSMichal Kubecek if (dev->features & NETIF_F_HW_VLAN_CTAG_RX) 2769ce48e5aSMichal Kubecek flags |= ETH_FLAG_RXVLAN; 2779ce48e5aSMichal Kubecek if (dev->features & NETIF_F_HW_VLAN_CTAG_TX) 2789ce48e5aSMichal Kubecek flags |= ETH_FLAG_TXVLAN; 2799ce48e5aSMichal Kubecek if (dev->features & NETIF_F_NTUPLE) 2809ce48e5aSMichal Kubecek flags |= ETH_FLAG_NTUPLE; 2819ce48e5aSMichal Kubecek if (dev->features & NETIF_F_RXHASH) 2829ce48e5aSMichal Kubecek flags |= ETH_FLAG_RXHASH; 2839ce48e5aSMichal Kubecek 2849ce48e5aSMichal Kubecek return flags; 2859ce48e5aSMichal Kubecek } 2869ce48e5aSMichal Kubecek 2879ce48e5aSMichal Kubecek static int __ethtool_set_flags(struct net_device *dev, u32 data) 2889ce48e5aSMichal Kubecek { 2899ce48e5aSMichal Kubecek netdev_features_t features = 0, changed; 2909ce48e5aSMichal Kubecek 2919ce48e5aSMichal Kubecek if (data & ~ETH_ALL_FLAGS) 2929ce48e5aSMichal Kubecek return -EINVAL; 2939ce48e5aSMichal Kubecek 2949ce48e5aSMichal Kubecek if (data & ETH_FLAG_LRO) 2959ce48e5aSMichal Kubecek features |= NETIF_F_LRO; 2969ce48e5aSMichal Kubecek if (data & ETH_FLAG_RXVLAN) 2979ce48e5aSMichal Kubecek features |= NETIF_F_HW_VLAN_CTAG_RX; 2989ce48e5aSMichal Kubecek if (data & ETH_FLAG_TXVLAN) 2999ce48e5aSMichal Kubecek features |= NETIF_F_HW_VLAN_CTAG_TX; 3009ce48e5aSMichal Kubecek if (data & ETH_FLAG_NTUPLE) 3019ce48e5aSMichal Kubecek features |= NETIF_F_NTUPLE; 3029ce48e5aSMichal Kubecek if (data & ETH_FLAG_RXHASH) 3039ce48e5aSMichal Kubecek features |= NETIF_F_RXHASH; 3049ce48e5aSMichal Kubecek 3059ce48e5aSMichal Kubecek /* allow changing only bits set in hw_features */ 3069ce48e5aSMichal Kubecek changed = (features ^ dev->features) & ETH_ALL_FEATURES; 3079ce48e5aSMichal Kubecek if (changed & ~dev->hw_features) 3089ce48e5aSMichal Kubecek return (changed & dev->hw_features) ? -EINVAL : -EOPNOTSUPP; 3099ce48e5aSMichal Kubecek 3109ce48e5aSMichal Kubecek dev->wanted_features = 3119ce48e5aSMichal Kubecek (dev->wanted_features & ~changed) | (features & changed); 3129ce48e5aSMichal Kubecek 3139ce48e5aSMichal Kubecek __netdev_update_features(dev); 3149ce48e5aSMichal Kubecek 3159ce48e5aSMichal Kubecek return 0; 3169ce48e5aSMichal Kubecek } 3179ce48e5aSMichal Kubecek 3189ce48e5aSMichal Kubecek /* Given two link masks, AND them together and save the result in dst. */ 3199ce48e5aSMichal Kubecek void ethtool_intersect_link_masks(struct ethtool_link_ksettings *dst, 3209ce48e5aSMichal Kubecek struct ethtool_link_ksettings *src) 3219ce48e5aSMichal Kubecek { 3229ce48e5aSMichal Kubecek unsigned int size = BITS_TO_LONGS(__ETHTOOL_LINK_MODE_MASK_NBITS); 3239ce48e5aSMichal Kubecek unsigned int idx = 0; 3249ce48e5aSMichal Kubecek 3259ce48e5aSMichal Kubecek for (; idx < size; idx++) { 3269ce48e5aSMichal Kubecek dst->link_modes.supported[idx] &= 3279ce48e5aSMichal Kubecek src->link_modes.supported[idx]; 3289ce48e5aSMichal Kubecek dst->link_modes.advertising[idx] &= 3299ce48e5aSMichal Kubecek src->link_modes.advertising[idx]; 3309ce48e5aSMichal Kubecek } 3319ce48e5aSMichal Kubecek } 3329ce48e5aSMichal Kubecek EXPORT_SYMBOL(ethtool_intersect_link_masks); 3339ce48e5aSMichal Kubecek 3349ce48e5aSMichal Kubecek void ethtool_convert_legacy_u32_to_link_mode(unsigned long *dst, 3359ce48e5aSMichal Kubecek u32 legacy_u32) 3369ce48e5aSMichal Kubecek { 3379ce48e5aSMichal Kubecek bitmap_zero(dst, __ETHTOOL_LINK_MODE_MASK_NBITS); 3389ce48e5aSMichal Kubecek dst[0] = legacy_u32; 3399ce48e5aSMichal Kubecek } 3409ce48e5aSMichal Kubecek EXPORT_SYMBOL(ethtool_convert_legacy_u32_to_link_mode); 3419ce48e5aSMichal Kubecek 3429ce48e5aSMichal Kubecek /* return false if src had higher bits set. lower bits always updated. */ 3439ce48e5aSMichal Kubecek bool ethtool_convert_link_mode_to_legacy_u32(u32 *legacy_u32, 3449ce48e5aSMichal Kubecek const unsigned long *src) 3459ce48e5aSMichal Kubecek { 3469ce48e5aSMichal Kubecek bool retval = true; 3479ce48e5aSMichal Kubecek 3489ce48e5aSMichal Kubecek /* TODO: following test will soon always be true */ 3499ce48e5aSMichal Kubecek if (__ETHTOOL_LINK_MODE_MASK_NBITS > 32) { 3509ce48e5aSMichal Kubecek __ETHTOOL_DECLARE_LINK_MODE_MASK(ext); 3519ce48e5aSMichal Kubecek 3529ce48e5aSMichal Kubecek bitmap_zero(ext, __ETHTOOL_LINK_MODE_MASK_NBITS); 3539ce48e5aSMichal Kubecek bitmap_fill(ext, 32); 3549ce48e5aSMichal Kubecek bitmap_complement(ext, ext, __ETHTOOL_LINK_MODE_MASK_NBITS); 3559ce48e5aSMichal Kubecek if (bitmap_intersects(ext, src, 3569ce48e5aSMichal Kubecek __ETHTOOL_LINK_MODE_MASK_NBITS)) { 3579ce48e5aSMichal Kubecek /* src mask goes beyond bit 31 */ 3589ce48e5aSMichal Kubecek retval = false; 3599ce48e5aSMichal Kubecek } 3609ce48e5aSMichal Kubecek } 3619ce48e5aSMichal Kubecek *legacy_u32 = src[0]; 3629ce48e5aSMichal Kubecek return retval; 3639ce48e5aSMichal Kubecek } 3649ce48e5aSMichal Kubecek EXPORT_SYMBOL(ethtool_convert_link_mode_to_legacy_u32); 3659ce48e5aSMichal Kubecek 3669ce48e5aSMichal Kubecek /* return false if ksettings link modes had higher bits 3679ce48e5aSMichal Kubecek * set. legacy_settings always updated (best effort) 3689ce48e5aSMichal Kubecek */ 3699ce48e5aSMichal Kubecek static bool 3709ce48e5aSMichal Kubecek convert_link_ksettings_to_legacy_settings( 3719ce48e5aSMichal Kubecek struct ethtool_cmd *legacy_settings, 3729ce48e5aSMichal Kubecek const struct ethtool_link_ksettings *link_ksettings) 3739ce48e5aSMichal Kubecek { 3749ce48e5aSMichal Kubecek bool retval = true; 3759ce48e5aSMichal Kubecek 3769ce48e5aSMichal Kubecek memset(legacy_settings, 0, sizeof(*legacy_settings)); 3779ce48e5aSMichal Kubecek /* this also clears the deprecated fields in legacy structure: 3789ce48e5aSMichal Kubecek * __u8 transceiver; 3799ce48e5aSMichal Kubecek * __u32 maxtxpkt; 3809ce48e5aSMichal Kubecek * __u32 maxrxpkt; 3819ce48e5aSMichal Kubecek */ 3829ce48e5aSMichal Kubecek 3839ce48e5aSMichal Kubecek retval &= ethtool_convert_link_mode_to_legacy_u32( 3849ce48e5aSMichal Kubecek &legacy_settings->supported, 3859ce48e5aSMichal Kubecek link_ksettings->link_modes.supported); 3869ce48e5aSMichal Kubecek retval &= ethtool_convert_link_mode_to_legacy_u32( 3879ce48e5aSMichal Kubecek &legacy_settings->advertising, 3889ce48e5aSMichal Kubecek link_ksettings->link_modes.advertising); 3899ce48e5aSMichal Kubecek retval &= ethtool_convert_link_mode_to_legacy_u32( 3909ce48e5aSMichal Kubecek &legacy_settings->lp_advertising, 3919ce48e5aSMichal Kubecek link_ksettings->link_modes.lp_advertising); 3929ce48e5aSMichal Kubecek ethtool_cmd_speed_set(legacy_settings, link_ksettings->base.speed); 3939ce48e5aSMichal Kubecek legacy_settings->duplex 3949ce48e5aSMichal Kubecek = link_ksettings->base.duplex; 3959ce48e5aSMichal Kubecek legacy_settings->port 3969ce48e5aSMichal Kubecek = link_ksettings->base.port; 3979ce48e5aSMichal Kubecek legacy_settings->phy_address 3989ce48e5aSMichal Kubecek = link_ksettings->base.phy_address; 3999ce48e5aSMichal Kubecek legacy_settings->autoneg 4009ce48e5aSMichal Kubecek = link_ksettings->base.autoneg; 4019ce48e5aSMichal Kubecek legacy_settings->mdio_support 4029ce48e5aSMichal Kubecek = link_ksettings->base.mdio_support; 4039ce48e5aSMichal Kubecek legacy_settings->eth_tp_mdix 4049ce48e5aSMichal Kubecek = link_ksettings->base.eth_tp_mdix; 4059ce48e5aSMichal Kubecek legacy_settings->eth_tp_mdix_ctrl 4069ce48e5aSMichal Kubecek = link_ksettings->base.eth_tp_mdix_ctrl; 4079ce48e5aSMichal Kubecek legacy_settings->transceiver 4089ce48e5aSMichal Kubecek = link_ksettings->base.transceiver; 4099ce48e5aSMichal Kubecek return retval; 4109ce48e5aSMichal Kubecek } 4119ce48e5aSMichal Kubecek 4129ce48e5aSMichal Kubecek /* number of 32-bit words to store the user's link mode bitmaps */ 4139ce48e5aSMichal Kubecek #define __ETHTOOL_LINK_MODE_MASK_NU32 \ 4149ce48e5aSMichal Kubecek DIV_ROUND_UP(__ETHTOOL_LINK_MODE_MASK_NBITS, 32) 4159ce48e5aSMichal Kubecek 4169ce48e5aSMichal Kubecek /* layout of the struct passed from/to userland */ 4179ce48e5aSMichal Kubecek struct ethtool_link_usettings { 4189ce48e5aSMichal Kubecek struct ethtool_link_settings base; 4199ce48e5aSMichal Kubecek struct { 4209ce48e5aSMichal Kubecek __u32 supported[__ETHTOOL_LINK_MODE_MASK_NU32]; 4219ce48e5aSMichal Kubecek __u32 advertising[__ETHTOOL_LINK_MODE_MASK_NU32]; 4229ce48e5aSMichal Kubecek __u32 lp_advertising[__ETHTOOL_LINK_MODE_MASK_NU32]; 4239ce48e5aSMichal Kubecek } link_modes; 4249ce48e5aSMichal Kubecek }; 4259ce48e5aSMichal Kubecek 4269ce48e5aSMichal Kubecek /* Internal kernel helper to query a device ethtool_link_settings. */ 4279ce48e5aSMichal Kubecek int __ethtool_get_link_ksettings(struct net_device *dev, 4289ce48e5aSMichal Kubecek struct ethtool_link_ksettings *link_ksettings) 4299ce48e5aSMichal Kubecek { 4309ce48e5aSMichal Kubecek ASSERT_RTNL(); 4319ce48e5aSMichal Kubecek 4329ce48e5aSMichal Kubecek if (!dev->ethtool_ops->get_link_ksettings) 4339ce48e5aSMichal Kubecek return -EOPNOTSUPP; 4349ce48e5aSMichal Kubecek 4359ce48e5aSMichal Kubecek memset(link_ksettings, 0, sizeof(*link_ksettings)); 436a975d7d8SDanielle Ratson return dev->ethtool_ops->get_link_ksettings(dev, link_ksettings); 4379ce48e5aSMichal Kubecek } 4389ce48e5aSMichal Kubecek EXPORT_SYMBOL(__ethtool_get_link_ksettings); 4399ce48e5aSMichal Kubecek 4409ce48e5aSMichal Kubecek /* convert ethtool_link_usettings in user space to a kernel internal 4419ce48e5aSMichal Kubecek * ethtool_link_ksettings. return 0 on success, errno on error. 4429ce48e5aSMichal Kubecek */ 4439ce48e5aSMichal Kubecek static int load_link_ksettings_from_user(struct ethtool_link_ksettings *to, 4449ce48e5aSMichal Kubecek const void __user *from) 4459ce48e5aSMichal Kubecek { 4469ce48e5aSMichal Kubecek struct ethtool_link_usettings link_usettings; 4479ce48e5aSMichal Kubecek 4489ce48e5aSMichal Kubecek if (copy_from_user(&link_usettings, from, sizeof(link_usettings))) 4499ce48e5aSMichal Kubecek return -EFAULT; 4509ce48e5aSMichal Kubecek 4519ce48e5aSMichal Kubecek memcpy(&to->base, &link_usettings.base, sizeof(to->base)); 4529ce48e5aSMichal Kubecek bitmap_from_arr32(to->link_modes.supported, 4539ce48e5aSMichal Kubecek link_usettings.link_modes.supported, 4549ce48e5aSMichal Kubecek __ETHTOOL_LINK_MODE_MASK_NBITS); 4559ce48e5aSMichal Kubecek bitmap_from_arr32(to->link_modes.advertising, 4569ce48e5aSMichal Kubecek link_usettings.link_modes.advertising, 4579ce48e5aSMichal Kubecek __ETHTOOL_LINK_MODE_MASK_NBITS); 4589ce48e5aSMichal Kubecek bitmap_from_arr32(to->link_modes.lp_advertising, 4599ce48e5aSMichal Kubecek link_usettings.link_modes.lp_advertising, 4609ce48e5aSMichal Kubecek __ETHTOOL_LINK_MODE_MASK_NBITS); 4619ce48e5aSMichal Kubecek 4629ce48e5aSMichal Kubecek return 0; 4639ce48e5aSMichal Kubecek } 4649ce48e5aSMichal Kubecek 46570ae1e12SCris Forno /* Check if the user is trying to change anything besides speed/duplex */ 46670ae1e12SCris Forno bool ethtool_virtdev_validate_cmd(const struct ethtool_link_ksettings *cmd) 46770ae1e12SCris Forno { 46870ae1e12SCris Forno struct ethtool_link_settings base2 = {}; 46970ae1e12SCris Forno 47070ae1e12SCris Forno base2.speed = cmd->base.speed; 47170ae1e12SCris Forno base2.port = PORT_OTHER; 47270ae1e12SCris Forno base2.duplex = cmd->base.duplex; 47370ae1e12SCris Forno base2.cmd = cmd->base.cmd; 47470ae1e12SCris Forno base2.link_mode_masks_nwords = cmd->base.link_mode_masks_nwords; 47570ae1e12SCris Forno 47670ae1e12SCris Forno return !memcmp(&base2, &cmd->base, sizeof(base2)) && 47770ae1e12SCris Forno bitmap_empty(cmd->link_modes.supported, 47870ae1e12SCris Forno __ETHTOOL_LINK_MODE_MASK_NBITS) && 47970ae1e12SCris Forno bitmap_empty(cmd->link_modes.lp_advertising, 48070ae1e12SCris Forno __ETHTOOL_LINK_MODE_MASK_NBITS); 48170ae1e12SCris Forno } 48270ae1e12SCris Forno 4839ce48e5aSMichal Kubecek /* convert a kernel internal ethtool_link_ksettings to 4849ce48e5aSMichal Kubecek * ethtool_link_usettings in user space. return 0 on success, errno on 4859ce48e5aSMichal Kubecek * error. 4869ce48e5aSMichal Kubecek */ 4879ce48e5aSMichal Kubecek static int 4889ce48e5aSMichal Kubecek store_link_ksettings_for_user(void __user *to, 4899ce48e5aSMichal Kubecek const struct ethtool_link_ksettings *from) 4909ce48e5aSMichal Kubecek { 4919ce48e5aSMichal Kubecek struct ethtool_link_usettings link_usettings; 4929ce48e5aSMichal Kubecek 493c1d9e34eSGustavo A. R. Silva memcpy(&link_usettings, from, sizeof(link_usettings)); 4949ce48e5aSMichal Kubecek bitmap_to_arr32(link_usettings.link_modes.supported, 4959ce48e5aSMichal Kubecek from->link_modes.supported, 4969ce48e5aSMichal Kubecek __ETHTOOL_LINK_MODE_MASK_NBITS); 4979ce48e5aSMichal Kubecek bitmap_to_arr32(link_usettings.link_modes.advertising, 4989ce48e5aSMichal Kubecek from->link_modes.advertising, 4999ce48e5aSMichal Kubecek __ETHTOOL_LINK_MODE_MASK_NBITS); 5009ce48e5aSMichal Kubecek bitmap_to_arr32(link_usettings.link_modes.lp_advertising, 5019ce48e5aSMichal Kubecek from->link_modes.lp_advertising, 5029ce48e5aSMichal Kubecek __ETHTOOL_LINK_MODE_MASK_NBITS); 5039ce48e5aSMichal Kubecek 5049ce48e5aSMichal Kubecek if (copy_to_user(to, &link_usettings, sizeof(link_usettings))) 5059ce48e5aSMichal Kubecek return -EFAULT; 5069ce48e5aSMichal Kubecek 5079ce48e5aSMichal Kubecek return 0; 5089ce48e5aSMichal Kubecek } 5099ce48e5aSMichal Kubecek 5109ce48e5aSMichal Kubecek /* Query device for its ethtool_link_settings. */ 5119ce48e5aSMichal Kubecek static int ethtool_get_link_ksettings(struct net_device *dev, 5129ce48e5aSMichal Kubecek void __user *useraddr) 5139ce48e5aSMichal Kubecek { 5149ce48e5aSMichal Kubecek int err = 0; 5159ce48e5aSMichal Kubecek struct ethtool_link_ksettings link_ksettings; 5169ce48e5aSMichal Kubecek 5179ce48e5aSMichal Kubecek ASSERT_RTNL(); 5189ce48e5aSMichal Kubecek if (!dev->ethtool_ops->get_link_ksettings) 5199ce48e5aSMichal Kubecek return -EOPNOTSUPP; 5209ce48e5aSMichal Kubecek 5219ce48e5aSMichal Kubecek /* handle bitmap nbits handshake */ 5229ce48e5aSMichal Kubecek if (copy_from_user(&link_ksettings.base, useraddr, 5239ce48e5aSMichal Kubecek sizeof(link_ksettings.base))) 5249ce48e5aSMichal Kubecek return -EFAULT; 5259ce48e5aSMichal Kubecek 5269ce48e5aSMichal Kubecek if (__ETHTOOL_LINK_MODE_MASK_NU32 5279ce48e5aSMichal Kubecek != link_ksettings.base.link_mode_masks_nwords) { 5289ce48e5aSMichal Kubecek /* wrong link mode nbits requested */ 5299ce48e5aSMichal Kubecek memset(&link_ksettings, 0, sizeof(link_ksettings)); 5309ce48e5aSMichal Kubecek link_ksettings.base.cmd = ETHTOOL_GLINKSETTINGS; 5319ce48e5aSMichal Kubecek /* send back number of words required as negative val */ 5329ce48e5aSMichal Kubecek compiletime_assert(__ETHTOOL_LINK_MODE_MASK_NU32 <= S8_MAX, 5339ce48e5aSMichal Kubecek "need too many bits for link modes!"); 5349ce48e5aSMichal Kubecek link_ksettings.base.link_mode_masks_nwords 5359ce48e5aSMichal Kubecek = -((s8)__ETHTOOL_LINK_MODE_MASK_NU32); 5369ce48e5aSMichal Kubecek 5379ce48e5aSMichal Kubecek /* copy the base fields back to user, not the link 5389ce48e5aSMichal Kubecek * mode bitmaps 5399ce48e5aSMichal Kubecek */ 5409ce48e5aSMichal Kubecek if (copy_to_user(useraddr, &link_ksettings.base, 5419ce48e5aSMichal Kubecek sizeof(link_ksettings.base))) 5429ce48e5aSMichal Kubecek return -EFAULT; 5439ce48e5aSMichal Kubecek 5449ce48e5aSMichal Kubecek return 0; 5459ce48e5aSMichal Kubecek } 5469ce48e5aSMichal Kubecek 5479ce48e5aSMichal Kubecek /* handshake successful: user/kernel agree on 5489ce48e5aSMichal Kubecek * link_mode_masks_nwords 5499ce48e5aSMichal Kubecek */ 5509ce48e5aSMichal Kubecek 5519ce48e5aSMichal Kubecek memset(&link_ksettings, 0, sizeof(link_ksettings)); 5529ce48e5aSMichal Kubecek err = dev->ethtool_ops->get_link_ksettings(dev, &link_ksettings); 5539ce48e5aSMichal Kubecek if (err < 0) 5549ce48e5aSMichal Kubecek return err; 5559ce48e5aSMichal Kubecek 5569ce48e5aSMichal Kubecek /* make sure we tell the right values to user */ 5579ce48e5aSMichal Kubecek link_ksettings.base.cmd = ETHTOOL_GLINKSETTINGS; 5589ce48e5aSMichal Kubecek link_ksettings.base.link_mode_masks_nwords 5599ce48e5aSMichal Kubecek = __ETHTOOL_LINK_MODE_MASK_NU32; 560bdbdac76SOleksij Rempel link_ksettings.base.master_slave_cfg = MASTER_SLAVE_CFG_UNSUPPORTED; 561bdbdac76SOleksij Rempel link_ksettings.base.master_slave_state = MASTER_SLAVE_STATE_UNSUPPORTED; 5629ce48e5aSMichal Kubecek 5639ce48e5aSMichal Kubecek return store_link_ksettings_for_user(useraddr, &link_ksettings); 5649ce48e5aSMichal Kubecek } 5659ce48e5aSMichal Kubecek 5669ce48e5aSMichal Kubecek /* Update device ethtool_link_settings. */ 5679ce48e5aSMichal Kubecek static int ethtool_set_link_ksettings(struct net_device *dev, 5689ce48e5aSMichal Kubecek void __user *useraddr) 5699ce48e5aSMichal Kubecek { 5709ce48e5aSMichal Kubecek int err; 5719ce48e5aSMichal Kubecek struct ethtool_link_ksettings link_ksettings; 5729ce48e5aSMichal Kubecek 5739ce48e5aSMichal Kubecek ASSERT_RTNL(); 5749ce48e5aSMichal Kubecek 5759ce48e5aSMichal Kubecek if (!dev->ethtool_ops->set_link_ksettings) 5769ce48e5aSMichal Kubecek return -EOPNOTSUPP; 5779ce48e5aSMichal Kubecek 5789ce48e5aSMichal Kubecek /* make sure nbits field has expected value */ 5799ce48e5aSMichal Kubecek if (copy_from_user(&link_ksettings.base, useraddr, 5809ce48e5aSMichal Kubecek sizeof(link_ksettings.base))) 5819ce48e5aSMichal Kubecek return -EFAULT; 5829ce48e5aSMichal Kubecek 5839ce48e5aSMichal Kubecek if (__ETHTOOL_LINK_MODE_MASK_NU32 5849ce48e5aSMichal Kubecek != link_ksettings.base.link_mode_masks_nwords) 5859ce48e5aSMichal Kubecek return -EINVAL; 5869ce48e5aSMichal Kubecek 5879ce48e5aSMichal Kubecek /* copy the whole structure, now that we know it has expected 5889ce48e5aSMichal Kubecek * format 5899ce48e5aSMichal Kubecek */ 5909ce48e5aSMichal Kubecek err = load_link_ksettings_from_user(&link_ksettings, useraddr); 5919ce48e5aSMichal Kubecek if (err) 5929ce48e5aSMichal Kubecek return err; 5939ce48e5aSMichal Kubecek 5949ce48e5aSMichal Kubecek /* re-check nwords field, just in case */ 5959ce48e5aSMichal Kubecek if (__ETHTOOL_LINK_MODE_MASK_NU32 5969ce48e5aSMichal Kubecek != link_ksettings.base.link_mode_masks_nwords) 5979ce48e5aSMichal Kubecek return -EINVAL; 5989ce48e5aSMichal Kubecek 599bdbdac76SOleksij Rempel if (link_ksettings.base.master_slave_cfg || 600bdbdac76SOleksij Rempel link_ksettings.base.master_slave_state) 601bdbdac76SOleksij Rempel return -EINVAL; 602bdbdac76SOleksij Rempel 60373286734SMichal Kubecek err = dev->ethtool_ops->set_link_ksettings(dev, &link_ksettings); 6041b1b1847SMichal Kubecek if (err >= 0) { 60573286734SMichal Kubecek ethtool_notify(dev, ETHTOOL_MSG_LINKINFO_NTF, NULL); 6061b1b1847SMichal Kubecek ethtool_notify(dev, ETHTOOL_MSG_LINKMODES_NTF, NULL); 6071b1b1847SMichal Kubecek } 60873286734SMichal Kubecek return err; 6099ce48e5aSMichal Kubecek } 6109ce48e5aSMichal Kubecek 61170ae1e12SCris Forno int ethtool_virtdev_set_link_ksettings(struct net_device *dev, 61270ae1e12SCris Forno const struct ethtool_link_ksettings *cmd, 61370ae1e12SCris Forno u32 *dev_speed, u8 *dev_duplex) 61470ae1e12SCris Forno { 61570ae1e12SCris Forno u32 speed; 61670ae1e12SCris Forno u8 duplex; 61770ae1e12SCris Forno 61870ae1e12SCris Forno speed = cmd->base.speed; 61970ae1e12SCris Forno duplex = cmd->base.duplex; 62070ae1e12SCris Forno /* don't allow custom speed and duplex */ 62170ae1e12SCris Forno if (!ethtool_validate_speed(speed) || 62270ae1e12SCris Forno !ethtool_validate_duplex(duplex) || 62370ae1e12SCris Forno !ethtool_virtdev_validate_cmd(cmd)) 62470ae1e12SCris Forno return -EINVAL; 62570ae1e12SCris Forno *dev_speed = speed; 62670ae1e12SCris Forno *dev_duplex = duplex; 62770ae1e12SCris Forno 62870ae1e12SCris Forno return 0; 62970ae1e12SCris Forno } 63070ae1e12SCris Forno EXPORT_SYMBOL(ethtool_virtdev_set_link_ksettings); 63170ae1e12SCris Forno 6329ce48e5aSMichal Kubecek /* Query device for its ethtool_cmd settings. 6339ce48e5aSMichal Kubecek * 6349ce48e5aSMichal Kubecek * Backward compatibility note: for compatibility with legacy ethtool, this is 6359ce48e5aSMichal Kubecek * now implemented via get_link_ksettings. When driver reports higher link mode 6369ce48e5aSMichal Kubecek * bits, a kernel warning is logged once (with name of 1st driver/device) to 6379ce48e5aSMichal Kubecek * recommend user to upgrade ethtool, but the command is successful (only the 6389ce48e5aSMichal Kubecek * lower link mode bits reported back to user). Deprecated fields from 6399ce48e5aSMichal Kubecek * ethtool_cmd (transceiver/maxrxpkt/maxtxpkt) are always set to zero. 6409ce48e5aSMichal Kubecek */ 6419ce48e5aSMichal Kubecek static int ethtool_get_settings(struct net_device *dev, void __user *useraddr) 6429ce48e5aSMichal Kubecek { 6439ce48e5aSMichal Kubecek struct ethtool_link_ksettings link_ksettings; 6449ce48e5aSMichal Kubecek struct ethtool_cmd cmd; 6459ce48e5aSMichal Kubecek int err; 6469ce48e5aSMichal Kubecek 6479ce48e5aSMichal Kubecek ASSERT_RTNL(); 6489ce48e5aSMichal Kubecek if (!dev->ethtool_ops->get_link_ksettings) 6499ce48e5aSMichal Kubecek return -EOPNOTSUPP; 6509ce48e5aSMichal Kubecek 6519ce48e5aSMichal Kubecek memset(&link_ksettings, 0, sizeof(link_ksettings)); 6529ce48e5aSMichal Kubecek err = dev->ethtool_ops->get_link_ksettings(dev, &link_ksettings); 6539ce48e5aSMichal Kubecek if (err < 0) 6549ce48e5aSMichal Kubecek return err; 6559ce48e5aSMichal Kubecek convert_link_ksettings_to_legacy_settings(&cmd, &link_ksettings); 6569ce48e5aSMichal Kubecek 6579ce48e5aSMichal Kubecek /* send a sensible cmd tag back to user */ 6589ce48e5aSMichal Kubecek cmd.cmd = ETHTOOL_GSET; 6599ce48e5aSMichal Kubecek 6609ce48e5aSMichal Kubecek if (copy_to_user(useraddr, &cmd, sizeof(cmd))) 6619ce48e5aSMichal Kubecek return -EFAULT; 6629ce48e5aSMichal Kubecek 6639ce48e5aSMichal Kubecek return 0; 6649ce48e5aSMichal Kubecek } 6659ce48e5aSMichal Kubecek 6669ce48e5aSMichal Kubecek /* Update device link settings with given ethtool_cmd. 6679ce48e5aSMichal Kubecek * 6689ce48e5aSMichal Kubecek * Backward compatibility note: for compatibility with legacy ethtool, this is 6699ce48e5aSMichal Kubecek * now always implemented via set_link_settings. When user's request updates 6709ce48e5aSMichal Kubecek * deprecated ethtool_cmd fields (transceiver/maxrxpkt/maxtxpkt), a kernel 6719ce48e5aSMichal Kubecek * warning is logged once (with name of 1st driver/device) to recommend user to 6729ce48e5aSMichal Kubecek * upgrade ethtool, and the request is rejected. 6739ce48e5aSMichal Kubecek */ 6749ce48e5aSMichal Kubecek static int ethtool_set_settings(struct net_device *dev, void __user *useraddr) 6759ce48e5aSMichal Kubecek { 6769ce48e5aSMichal Kubecek struct ethtool_link_ksettings link_ksettings; 6779ce48e5aSMichal Kubecek struct ethtool_cmd cmd; 67873286734SMichal Kubecek int ret; 6799ce48e5aSMichal Kubecek 6809ce48e5aSMichal Kubecek ASSERT_RTNL(); 6819ce48e5aSMichal Kubecek 6829ce48e5aSMichal Kubecek if (copy_from_user(&cmd, useraddr, sizeof(cmd))) 6839ce48e5aSMichal Kubecek return -EFAULT; 6849ce48e5aSMichal Kubecek if (!dev->ethtool_ops->set_link_ksettings) 6859ce48e5aSMichal Kubecek return -EOPNOTSUPP; 6869ce48e5aSMichal Kubecek 6879ce48e5aSMichal Kubecek if (!convert_legacy_settings_to_link_ksettings(&link_ksettings, &cmd)) 6889ce48e5aSMichal Kubecek return -EINVAL; 6899ce48e5aSMichal Kubecek link_ksettings.base.link_mode_masks_nwords = 6909ce48e5aSMichal Kubecek __ETHTOOL_LINK_MODE_MASK_NU32; 69173286734SMichal Kubecek ret = dev->ethtool_ops->set_link_ksettings(dev, &link_ksettings); 6921b1b1847SMichal Kubecek if (ret >= 0) { 69373286734SMichal Kubecek ethtool_notify(dev, ETHTOOL_MSG_LINKINFO_NTF, NULL); 6941b1b1847SMichal Kubecek ethtool_notify(dev, ETHTOOL_MSG_LINKMODES_NTF, NULL); 6951b1b1847SMichal Kubecek } 69673286734SMichal Kubecek return ret; 6979ce48e5aSMichal Kubecek } 6989ce48e5aSMichal Kubecek 6999ce48e5aSMichal Kubecek static noinline_for_stack int ethtool_get_drvinfo(struct net_device *dev, 7009ce48e5aSMichal Kubecek void __user *useraddr) 7019ce48e5aSMichal Kubecek { 7029ce48e5aSMichal Kubecek struct ethtool_drvinfo info; 7039ce48e5aSMichal Kubecek const struct ethtool_ops *ops = dev->ethtool_ops; 7049ce48e5aSMichal Kubecek 7059ce48e5aSMichal Kubecek memset(&info, 0, sizeof(info)); 7069ce48e5aSMichal Kubecek info.cmd = ETHTOOL_GDRVINFO; 7076a7e25c7SLeon Romanovsky strlcpy(info.version, UTS_RELEASE, sizeof(info.version)); 7089ce48e5aSMichal Kubecek if (ops->get_drvinfo) { 7099ce48e5aSMichal Kubecek ops->get_drvinfo(dev, &info); 7109ce48e5aSMichal Kubecek } else if (dev->dev.parent && dev->dev.parent->driver) { 7119ce48e5aSMichal Kubecek strlcpy(info.bus_info, dev_name(dev->dev.parent), 7129ce48e5aSMichal Kubecek sizeof(info.bus_info)); 7139ce48e5aSMichal Kubecek strlcpy(info.driver, dev->dev.parent->driver->name, 7149ce48e5aSMichal Kubecek sizeof(info.driver)); 7159ce48e5aSMichal Kubecek } else { 7169ce48e5aSMichal Kubecek return -EOPNOTSUPP; 7179ce48e5aSMichal Kubecek } 7189ce48e5aSMichal Kubecek 7199ce48e5aSMichal Kubecek /* 7209ce48e5aSMichal Kubecek * this method of obtaining string set info is deprecated; 7219ce48e5aSMichal Kubecek * Use ETHTOOL_GSSET_INFO instead. 7229ce48e5aSMichal Kubecek */ 7239ce48e5aSMichal Kubecek if (ops->get_sset_count) { 7249ce48e5aSMichal Kubecek int rc; 7259ce48e5aSMichal Kubecek 7269ce48e5aSMichal Kubecek rc = ops->get_sset_count(dev, ETH_SS_TEST); 7279ce48e5aSMichal Kubecek if (rc >= 0) 7289ce48e5aSMichal Kubecek info.testinfo_len = rc; 7299ce48e5aSMichal Kubecek rc = ops->get_sset_count(dev, ETH_SS_STATS); 7309ce48e5aSMichal Kubecek if (rc >= 0) 7319ce48e5aSMichal Kubecek info.n_stats = rc; 7329ce48e5aSMichal Kubecek rc = ops->get_sset_count(dev, ETH_SS_PRIV_FLAGS); 7339ce48e5aSMichal Kubecek if (rc >= 0) 7349ce48e5aSMichal Kubecek info.n_priv_flags = rc; 7359ce48e5aSMichal Kubecek } 7369ce48e5aSMichal Kubecek if (ops->get_regs_len) { 7379ce48e5aSMichal Kubecek int ret = ops->get_regs_len(dev); 7389ce48e5aSMichal Kubecek 7399ce48e5aSMichal Kubecek if (ret > 0) 7409ce48e5aSMichal Kubecek info.regdump_len = ret; 7419ce48e5aSMichal Kubecek } 7429ce48e5aSMichal Kubecek 7439ce48e5aSMichal Kubecek if (ops->get_eeprom_len) 7449ce48e5aSMichal Kubecek info.eedump_len = ops->get_eeprom_len(dev); 7459ce48e5aSMichal Kubecek 7469ce48e5aSMichal Kubecek if (!info.fw_version[0]) 7479ce48e5aSMichal Kubecek devlink_compat_running_version(dev, info.fw_version, 7489ce48e5aSMichal Kubecek sizeof(info.fw_version)); 7499ce48e5aSMichal Kubecek 7509ce48e5aSMichal Kubecek if (copy_to_user(useraddr, &info, sizeof(info))) 7519ce48e5aSMichal Kubecek return -EFAULT; 7529ce48e5aSMichal Kubecek return 0; 7539ce48e5aSMichal Kubecek } 7549ce48e5aSMichal Kubecek 7559ce48e5aSMichal Kubecek static noinline_for_stack int ethtool_get_sset_info(struct net_device *dev, 7569ce48e5aSMichal Kubecek void __user *useraddr) 7579ce48e5aSMichal Kubecek { 7589ce48e5aSMichal Kubecek struct ethtool_sset_info info; 7599ce48e5aSMichal Kubecek u64 sset_mask; 7609ce48e5aSMichal Kubecek int i, idx = 0, n_bits = 0, ret, rc; 7619ce48e5aSMichal Kubecek u32 *info_buf = NULL; 7629ce48e5aSMichal Kubecek 7639ce48e5aSMichal Kubecek if (copy_from_user(&info, useraddr, sizeof(info))) 7649ce48e5aSMichal Kubecek return -EFAULT; 7659ce48e5aSMichal Kubecek 7669ce48e5aSMichal Kubecek /* store copy of mask, because we zero struct later on */ 7679ce48e5aSMichal Kubecek sset_mask = info.sset_mask; 7689ce48e5aSMichal Kubecek if (!sset_mask) 7699ce48e5aSMichal Kubecek return 0; 7709ce48e5aSMichal Kubecek 7719ce48e5aSMichal Kubecek /* calculate size of return buffer */ 7729ce48e5aSMichal Kubecek n_bits = hweight64(sset_mask); 7739ce48e5aSMichal Kubecek 7749ce48e5aSMichal Kubecek memset(&info, 0, sizeof(info)); 7759ce48e5aSMichal Kubecek info.cmd = ETHTOOL_GSSET_INFO; 7769ce48e5aSMichal Kubecek 7779ce48e5aSMichal Kubecek info_buf = kcalloc(n_bits, sizeof(u32), GFP_USER); 7789ce48e5aSMichal Kubecek if (!info_buf) 7799ce48e5aSMichal Kubecek return -ENOMEM; 7809ce48e5aSMichal Kubecek 7819ce48e5aSMichal Kubecek /* 7829ce48e5aSMichal Kubecek * fill return buffer based on input bitmask and successful 7839ce48e5aSMichal Kubecek * get_sset_count return 7849ce48e5aSMichal Kubecek */ 7859ce48e5aSMichal Kubecek for (i = 0; i < 64; i++) { 7869ce48e5aSMichal Kubecek if (!(sset_mask & (1ULL << i))) 7879ce48e5aSMichal Kubecek continue; 7889ce48e5aSMichal Kubecek 7899ce48e5aSMichal Kubecek rc = __ethtool_get_sset_count(dev, i); 7909ce48e5aSMichal Kubecek if (rc >= 0) { 7919ce48e5aSMichal Kubecek info.sset_mask |= (1ULL << i); 7929ce48e5aSMichal Kubecek info_buf[idx++] = rc; 7939ce48e5aSMichal Kubecek } 7949ce48e5aSMichal Kubecek } 7959ce48e5aSMichal Kubecek 7969ce48e5aSMichal Kubecek ret = -EFAULT; 7979ce48e5aSMichal Kubecek if (copy_to_user(useraddr, &info, sizeof(info))) 7989ce48e5aSMichal Kubecek goto out; 7999ce48e5aSMichal Kubecek 8009ce48e5aSMichal Kubecek useraddr += offsetof(struct ethtool_sset_info, data); 8019ce48e5aSMichal Kubecek if (copy_to_user(useraddr, info_buf, idx * sizeof(u32))) 8029ce48e5aSMichal Kubecek goto out; 8039ce48e5aSMichal Kubecek 8049ce48e5aSMichal Kubecek ret = 0; 8059ce48e5aSMichal Kubecek 8069ce48e5aSMichal Kubecek out: 8079ce48e5aSMichal Kubecek kfree(info_buf); 8089ce48e5aSMichal Kubecek return ret; 8099ce48e5aSMichal Kubecek } 8109ce48e5aSMichal Kubecek 811dd98d289SArnd Bergmann static noinline_for_stack int 812dd98d289SArnd Bergmann ethtool_rxnfc_copy_from_compat(struct ethtool_rxnfc *rxnfc, 813dd98d289SArnd Bergmann const struct compat_ethtool_rxnfc __user *useraddr, 814dd98d289SArnd Bergmann size_t size) 815dd98d289SArnd Bergmann { 816dd98d289SArnd Bergmann struct compat_ethtool_rxnfc crxnfc = {}; 817dd98d289SArnd Bergmann 818dd98d289SArnd Bergmann /* We expect there to be holes between fs.m_ext and 819dd98d289SArnd Bergmann * fs.ring_cookie and at the end of fs, but nowhere else. 820dd98d289SArnd Bergmann * On non-x86, no conversion should be needed. 821dd98d289SArnd Bergmann */ 822dd98d289SArnd Bergmann BUILD_BUG_ON(!IS_ENABLED(CONFIG_X86_64) && 823dd98d289SArnd Bergmann sizeof(struct compat_ethtool_rxnfc) != 824dd98d289SArnd Bergmann sizeof(struct ethtool_rxnfc)); 825dd98d289SArnd Bergmann BUILD_BUG_ON(offsetof(struct compat_ethtool_rxnfc, fs.m_ext) + 826dd98d289SArnd Bergmann sizeof(useraddr->fs.m_ext) != 827dd98d289SArnd Bergmann offsetof(struct ethtool_rxnfc, fs.m_ext) + 828dd98d289SArnd Bergmann sizeof(rxnfc->fs.m_ext)); 829dd98d289SArnd Bergmann BUILD_BUG_ON(offsetof(struct compat_ethtool_rxnfc, fs.location) - 830dd98d289SArnd Bergmann offsetof(struct compat_ethtool_rxnfc, fs.ring_cookie) != 831dd98d289SArnd Bergmann offsetof(struct ethtool_rxnfc, fs.location) - 832dd98d289SArnd Bergmann offsetof(struct ethtool_rxnfc, fs.ring_cookie)); 833dd98d289SArnd Bergmann 834dd98d289SArnd Bergmann if (copy_from_user(&crxnfc, useraddr, min(size, sizeof(crxnfc)))) 835dd98d289SArnd Bergmann return -EFAULT; 836dd98d289SArnd Bergmann 837dd98d289SArnd Bergmann *rxnfc = (struct ethtool_rxnfc) { 838dd98d289SArnd Bergmann .cmd = crxnfc.cmd, 839dd98d289SArnd Bergmann .flow_type = crxnfc.flow_type, 840dd98d289SArnd Bergmann .data = crxnfc.data, 841dd98d289SArnd Bergmann .fs = { 842dd98d289SArnd Bergmann .flow_type = crxnfc.fs.flow_type, 843dd98d289SArnd Bergmann .h_u = crxnfc.fs.h_u, 844dd98d289SArnd Bergmann .h_ext = crxnfc.fs.h_ext, 845dd98d289SArnd Bergmann .m_u = crxnfc.fs.m_u, 846dd98d289SArnd Bergmann .m_ext = crxnfc.fs.m_ext, 847dd98d289SArnd Bergmann .ring_cookie = crxnfc.fs.ring_cookie, 848dd98d289SArnd Bergmann .location = crxnfc.fs.location, 849dd98d289SArnd Bergmann }, 850dd98d289SArnd Bergmann .rule_cnt = crxnfc.rule_cnt, 851dd98d289SArnd Bergmann }; 852dd98d289SArnd Bergmann 853dd98d289SArnd Bergmann return 0; 854dd98d289SArnd Bergmann } 855dd98d289SArnd Bergmann 856dd98d289SArnd Bergmann static int ethtool_rxnfc_copy_from_user(struct ethtool_rxnfc *rxnfc, 857dd98d289SArnd Bergmann const void __user *useraddr, 858dd98d289SArnd Bergmann size_t size) 859dd98d289SArnd Bergmann { 860dd98d289SArnd Bergmann if (compat_need_64bit_alignment_fixup()) 861dd98d289SArnd Bergmann return ethtool_rxnfc_copy_from_compat(rxnfc, useraddr, size); 862dd98d289SArnd Bergmann 863dd98d289SArnd Bergmann if (copy_from_user(rxnfc, useraddr, size)) 864dd98d289SArnd Bergmann return -EFAULT; 865dd98d289SArnd Bergmann 866dd98d289SArnd Bergmann return 0; 867dd98d289SArnd Bergmann } 868dd98d289SArnd Bergmann 869dd98d289SArnd Bergmann static int ethtool_rxnfc_copy_to_compat(void __user *useraddr, 870dd98d289SArnd Bergmann const struct ethtool_rxnfc *rxnfc, 871dd98d289SArnd Bergmann size_t size, const u32 *rule_buf) 872dd98d289SArnd Bergmann { 873dd98d289SArnd Bergmann struct compat_ethtool_rxnfc crxnfc; 874dd98d289SArnd Bergmann 875dd98d289SArnd Bergmann memset(&crxnfc, 0, sizeof(crxnfc)); 876dd98d289SArnd Bergmann crxnfc = (struct compat_ethtool_rxnfc) { 877dd98d289SArnd Bergmann .cmd = rxnfc->cmd, 878dd98d289SArnd Bergmann .flow_type = rxnfc->flow_type, 879dd98d289SArnd Bergmann .data = rxnfc->data, 880dd98d289SArnd Bergmann .fs = { 881dd98d289SArnd Bergmann .flow_type = rxnfc->fs.flow_type, 882dd98d289SArnd Bergmann .h_u = rxnfc->fs.h_u, 883dd98d289SArnd Bergmann .h_ext = rxnfc->fs.h_ext, 884dd98d289SArnd Bergmann .m_u = rxnfc->fs.m_u, 885dd98d289SArnd Bergmann .m_ext = rxnfc->fs.m_ext, 886dd98d289SArnd Bergmann .ring_cookie = rxnfc->fs.ring_cookie, 887dd98d289SArnd Bergmann .location = rxnfc->fs.location, 888dd98d289SArnd Bergmann }, 889dd98d289SArnd Bergmann .rule_cnt = rxnfc->rule_cnt, 890dd98d289SArnd Bergmann }; 891dd98d289SArnd Bergmann 892dd98d289SArnd Bergmann if (copy_to_user(useraddr, &crxnfc, min(size, sizeof(crxnfc)))) 893dd98d289SArnd Bergmann return -EFAULT; 894dd98d289SArnd Bergmann 895dd98d289SArnd Bergmann return 0; 896dd98d289SArnd Bergmann } 897dd98d289SArnd Bergmann 898dd98d289SArnd Bergmann static int ethtool_rxnfc_copy_to_user(void __user *useraddr, 899dd98d289SArnd Bergmann const struct ethtool_rxnfc *rxnfc, 900dd98d289SArnd Bergmann size_t size, const u32 *rule_buf) 901dd98d289SArnd Bergmann { 902dd98d289SArnd Bergmann int ret; 903dd98d289SArnd Bergmann 904dd98d289SArnd Bergmann if (compat_need_64bit_alignment_fixup()) { 905dd98d289SArnd Bergmann ret = ethtool_rxnfc_copy_to_compat(useraddr, rxnfc, size, 906dd98d289SArnd Bergmann rule_buf); 907dd98d289SArnd Bergmann useraddr += offsetof(struct compat_ethtool_rxnfc, rule_locs); 908dd98d289SArnd Bergmann } else { 9099b29a161SSaeed Mahameed ret = copy_to_user(useraddr, rxnfc, size); 910dd98d289SArnd Bergmann useraddr += offsetof(struct ethtool_rxnfc, rule_locs); 911dd98d289SArnd Bergmann } 912dd98d289SArnd Bergmann 913dd98d289SArnd Bergmann if (ret) 914dd98d289SArnd Bergmann return -EFAULT; 915dd98d289SArnd Bergmann 916dd98d289SArnd Bergmann if (rule_buf) { 917dd98d289SArnd Bergmann if (copy_to_user(useraddr, rule_buf, 918dd98d289SArnd Bergmann rxnfc->rule_cnt * sizeof(u32))) 919dd98d289SArnd Bergmann return -EFAULT; 920dd98d289SArnd Bergmann } 921dd98d289SArnd Bergmann 922dd98d289SArnd Bergmann return 0; 923dd98d289SArnd Bergmann } 924dd98d289SArnd Bergmann 9259ce48e5aSMichal Kubecek static noinline_for_stack int ethtool_set_rxnfc(struct net_device *dev, 9269ce48e5aSMichal Kubecek u32 cmd, void __user *useraddr) 9279ce48e5aSMichal Kubecek { 9289ce48e5aSMichal Kubecek struct ethtool_rxnfc info; 9299ce48e5aSMichal Kubecek size_t info_size = sizeof(info); 9309ce48e5aSMichal Kubecek int rc; 9319ce48e5aSMichal Kubecek 9329ce48e5aSMichal Kubecek if (!dev->ethtool_ops->set_rxnfc) 9339ce48e5aSMichal Kubecek return -EOPNOTSUPP; 9349ce48e5aSMichal Kubecek 9359ce48e5aSMichal Kubecek /* struct ethtool_rxnfc was originally defined for 9369ce48e5aSMichal Kubecek * ETHTOOL_{G,S}RXFH with only the cmd, flow_type and data 9379ce48e5aSMichal Kubecek * members. User-space might still be using that 9389ce48e5aSMichal Kubecek * definition. */ 9399ce48e5aSMichal Kubecek if (cmd == ETHTOOL_SRXFH) 9409ce48e5aSMichal Kubecek info_size = (offsetof(struct ethtool_rxnfc, data) + 9419ce48e5aSMichal Kubecek sizeof(info.data)); 9429ce48e5aSMichal Kubecek 943dd98d289SArnd Bergmann if (ethtool_rxnfc_copy_from_user(&info, useraddr, info_size)) 9449ce48e5aSMichal Kubecek return -EFAULT; 9459ce48e5aSMichal Kubecek 9469ce48e5aSMichal Kubecek rc = dev->ethtool_ops->set_rxnfc(dev, &info); 9479ce48e5aSMichal Kubecek if (rc) 9489ce48e5aSMichal Kubecek return rc; 9499ce48e5aSMichal Kubecek 9509ce48e5aSMichal Kubecek if (cmd == ETHTOOL_SRXCLSRLINS && 951dd98d289SArnd Bergmann ethtool_rxnfc_copy_to_user(useraddr, &info, info_size, NULL)) 9529ce48e5aSMichal Kubecek return -EFAULT; 9539ce48e5aSMichal Kubecek 9549ce48e5aSMichal Kubecek return 0; 9559ce48e5aSMichal Kubecek } 9569ce48e5aSMichal Kubecek 9579ce48e5aSMichal Kubecek static noinline_for_stack int ethtool_get_rxnfc(struct net_device *dev, 9589ce48e5aSMichal Kubecek u32 cmd, void __user *useraddr) 9599ce48e5aSMichal Kubecek { 9609ce48e5aSMichal Kubecek struct ethtool_rxnfc info; 9619ce48e5aSMichal Kubecek size_t info_size = sizeof(info); 9629ce48e5aSMichal Kubecek const struct ethtool_ops *ops = dev->ethtool_ops; 9639ce48e5aSMichal Kubecek int ret; 9649ce48e5aSMichal Kubecek void *rule_buf = NULL; 9659ce48e5aSMichal Kubecek 9669ce48e5aSMichal Kubecek if (!ops->get_rxnfc) 9679ce48e5aSMichal Kubecek return -EOPNOTSUPP; 9689ce48e5aSMichal Kubecek 9699ce48e5aSMichal Kubecek /* struct ethtool_rxnfc was originally defined for 9709ce48e5aSMichal Kubecek * ETHTOOL_{G,S}RXFH with only the cmd, flow_type and data 9719ce48e5aSMichal Kubecek * members. User-space might still be using that 9729ce48e5aSMichal Kubecek * definition. */ 9739ce48e5aSMichal Kubecek if (cmd == ETHTOOL_GRXFH) 9749ce48e5aSMichal Kubecek info_size = (offsetof(struct ethtool_rxnfc, data) + 9759ce48e5aSMichal Kubecek sizeof(info.data)); 9769ce48e5aSMichal Kubecek 977dd98d289SArnd Bergmann if (ethtool_rxnfc_copy_from_user(&info, useraddr, info_size)) 9789ce48e5aSMichal Kubecek return -EFAULT; 9799ce48e5aSMichal Kubecek 9809ce48e5aSMichal Kubecek /* If FLOW_RSS was requested then user-space must be using the 9819ce48e5aSMichal Kubecek * new definition, as FLOW_RSS is newer. 9829ce48e5aSMichal Kubecek */ 9839ce48e5aSMichal Kubecek if (cmd == ETHTOOL_GRXFH && info.flow_type & FLOW_RSS) { 9849ce48e5aSMichal Kubecek info_size = sizeof(info); 985dd98d289SArnd Bergmann if (ethtool_rxnfc_copy_from_user(&info, useraddr, info_size)) 9869ce48e5aSMichal Kubecek return -EFAULT; 9879ce48e5aSMichal Kubecek /* Since malicious users may modify the original data, 9889ce48e5aSMichal Kubecek * we need to check whether FLOW_RSS is still requested. 9899ce48e5aSMichal Kubecek */ 9909ce48e5aSMichal Kubecek if (!(info.flow_type & FLOW_RSS)) 9919ce48e5aSMichal Kubecek return -EINVAL; 9929ce48e5aSMichal Kubecek } 9939ce48e5aSMichal Kubecek 9949ce48e5aSMichal Kubecek if (info.cmd != cmd) 9959ce48e5aSMichal Kubecek return -EINVAL; 9969ce48e5aSMichal Kubecek 9979ce48e5aSMichal Kubecek if (info.cmd == ETHTOOL_GRXCLSRLALL) { 9989ce48e5aSMichal Kubecek if (info.rule_cnt > 0) { 9999ce48e5aSMichal Kubecek if (info.rule_cnt <= KMALLOC_MAX_SIZE / sizeof(u32)) 10009ce48e5aSMichal Kubecek rule_buf = kcalloc(info.rule_cnt, sizeof(u32), 10019ce48e5aSMichal Kubecek GFP_USER); 10029ce48e5aSMichal Kubecek if (!rule_buf) 10039ce48e5aSMichal Kubecek return -ENOMEM; 10049ce48e5aSMichal Kubecek } 10059ce48e5aSMichal Kubecek } 10069ce48e5aSMichal Kubecek 10079ce48e5aSMichal Kubecek ret = ops->get_rxnfc(dev, &info, rule_buf); 10089ce48e5aSMichal Kubecek if (ret < 0) 10099ce48e5aSMichal Kubecek goto err_out; 10109ce48e5aSMichal Kubecek 1011dd98d289SArnd Bergmann ret = ethtool_rxnfc_copy_to_user(useraddr, &info, info_size, rule_buf); 10129ce48e5aSMichal Kubecek err_out: 10139ce48e5aSMichal Kubecek kfree(rule_buf); 10149ce48e5aSMichal Kubecek 10159ce48e5aSMichal Kubecek return ret; 10169ce48e5aSMichal Kubecek } 10179ce48e5aSMichal Kubecek 10189ce48e5aSMichal Kubecek static int ethtool_copy_validate_indir(u32 *indir, void __user *useraddr, 10199ce48e5aSMichal Kubecek struct ethtool_rxnfc *rx_rings, 10209ce48e5aSMichal Kubecek u32 size) 10219ce48e5aSMichal Kubecek { 10229ce48e5aSMichal Kubecek int i; 10239ce48e5aSMichal Kubecek 10249ce48e5aSMichal Kubecek if (copy_from_user(indir, useraddr, size * sizeof(indir[0]))) 10259ce48e5aSMichal Kubecek return -EFAULT; 10269ce48e5aSMichal Kubecek 10279ce48e5aSMichal Kubecek /* Validate ring indices */ 10289ce48e5aSMichal Kubecek for (i = 0; i < size; i++) 10299ce48e5aSMichal Kubecek if (indir[i] >= rx_rings->data) 10309ce48e5aSMichal Kubecek return -EINVAL; 10319ce48e5aSMichal Kubecek 10329ce48e5aSMichal Kubecek return 0; 10339ce48e5aSMichal Kubecek } 10349ce48e5aSMichal Kubecek 10359ce48e5aSMichal Kubecek u8 netdev_rss_key[NETDEV_RSS_KEY_LEN] __read_mostly; 10369ce48e5aSMichal Kubecek 10379ce48e5aSMichal Kubecek void netdev_rss_key_fill(void *buffer, size_t len) 10389ce48e5aSMichal Kubecek { 10399ce48e5aSMichal Kubecek BUG_ON(len > sizeof(netdev_rss_key)); 10409ce48e5aSMichal Kubecek net_get_random_once(netdev_rss_key, sizeof(netdev_rss_key)); 10419ce48e5aSMichal Kubecek memcpy(buffer, netdev_rss_key, len); 10429ce48e5aSMichal Kubecek } 10439ce48e5aSMichal Kubecek EXPORT_SYMBOL(netdev_rss_key_fill); 10449ce48e5aSMichal Kubecek 10459ce48e5aSMichal Kubecek static noinline_for_stack int ethtool_get_rxfh_indir(struct net_device *dev, 10469ce48e5aSMichal Kubecek void __user *useraddr) 10479ce48e5aSMichal Kubecek { 10489ce48e5aSMichal Kubecek u32 user_size, dev_size; 10499ce48e5aSMichal Kubecek u32 *indir; 10509ce48e5aSMichal Kubecek int ret; 10519ce48e5aSMichal Kubecek 10529ce48e5aSMichal Kubecek if (!dev->ethtool_ops->get_rxfh_indir_size || 10539ce48e5aSMichal Kubecek !dev->ethtool_ops->get_rxfh) 10549ce48e5aSMichal Kubecek return -EOPNOTSUPP; 10559ce48e5aSMichal Kubecek dev_size = dev->ethtool_ops->get_rxfh_indir_size(dev); 10569ce48e5aSMichal Kubecek if (dev_size == 0) 10579ce48e5aSMichal Kubecek return -EOPNOTSUPP; 10589ce48e5aSMichal Kubecek 10599ce48e5aSMichal Kubecek if (copy_from_user(&user_size, 10609ce48e5aSMichal Kubecek useraddr + offsetof(struct ethtool_rxfh_indir, size), 10619ce48e5aSMichal Kubecek sizeof(user_size))) 10629ce48e5aSMichal Kubecek return -EFAULT; 10639ce48e5aSMichal Kubecek 10649ce48e5aSMichal Kubecek if (copy_to_user(useraddr + offsetof(struct ethtool_rxfh_indir, size), 10659ce48e5aSMichal Kubecek &dev_size, sizeof(dev_size))) 10669ce48e5aSMichal Kubecek return -EFAULT; 10679ce48e5aSMichal Kubecek 10689ce48e5aSMichal Kubecek /* If the user buffer size is 0, this is just a query for the 10699ce48e5aSMichal Kubecek * device table size. Otherwise, if it's smaller than the 10709ce48e5aSMichal Kubecek * device table size it's an error. 10719ce48e5aSMichal Kubecek */ 10729ce48e5aSMichal Kubecek if (user_size < dev_size) 10739ce48e5aSMichal Kubecek return user_size == 0 ? 0 : -EINVAL; 10749ce48e5aSMichal Kubecek 10759ce48e5aSMichal Kubecek indir = kcalloc(dev_size, sizeof(indir[0]), GFP_USER); 10769ce48e5aSMichal Kubecek if (!indir) 10779ce48e5aSMichal Kubecek return -ENOMEM; 10789ce48e5aSMichal Kubecek 10799ce48e5aSMichal Kubecek ret = dev->ethtool_ops->get_rxfh(dev, indir, NULL, NULL); 10809ce48e5aSMichal Kubecek if (ret) 10819ce48e5aSMichal Kubecek goto out; 10829ce48e5aSMichal Kubecek 10839ce48e5aSMichal Kubecek if (copy_to_user(useraddr + 10849ce48e5aSMichal Kubecek offsetof(struct ethtool_rxfh_indir, ring_index[0]), 10859ce48e5aSMichal Kubecek indir, dev_size * sizeof(indir[0]))) 10869ce48e5aSMichal Kubecek ret = -EFAULT; 10879ce48e5aSMichal Kubecek 10889ce48e5aSMichal Kubecek out: 10899ce48e5aSMichal Kubecek kfree(indir); 10909ce48e5aSMichal Kubecek return ret; 10919ce48e5aSMichal Kubecek } 10929ce48e5aSMichal Kubecek 10939ce48e5aSMichal Kubecek static noinline_for_stack int ethtool_set_rxfh_indir(struct net_device *dev, 10949ce48e5aSMichal Kubecek void __user *useraddr) 10959ce48e5aSMichal Kubecek { 10969ce48e5aSMichal Kubecek struct ethtool_rxnfc rx_rings; 10979ce48e5aSMichal Kubecek u32 user_size, dev_size, i; 10989ce48e5aSMichal Kubecek u32 *indir; 10999ce48e5aSMichal Kubecek const struct ethtool_ops *ops = dev->ethtool_ops; 11009ce48e5aSMichal Kubecek int ret; 11019ce48e5aSMichal Kubecek u32 ringidx_offset = offsetof(struct ethtool_rxfh_indir, ring_index[0]); 11029ce48e5aSMichal Kubecek 11039ce48e5aSMichal Kubecek if (!ops->get_rxfh_indir_size || !ops->set_rxfh || 11049ce48e5aSMichal Kubecek !ops->get_rxnfc) 11059ce48e5aSMichal Kubecek return -EOPNOTSUPP; 11069ce48e5aSMichal Kubecek 11079ce48e5aSMichal Kubecek dev_size = ops->get_rxfh_indir_size(dev); 11089ce48e5aSMichal Kubecek if (dev_size == 0) 11099ce48e5aSMichal Kubecek return -EOPNOTSUPP; 11109ce48e5aSMichal Kubecek 11119ce48e5aSMichal Kubecek if (copy_from_user(&user_size, 11129ce48e5aSMichal Kubecek useraddr + offsetof(struct ethtool_rxfh_indir, size), 11139ce48e5aSMichal Kubecek sizeof(user_size))) 11149ce48e5aSMichal Kubecek return -EFAULT; 11159ce48e5aSMichal Kubecek 11169ce48e5aSMichal Kubecek if (user_size != 0 && user_size != dev_size) 11179ce48e5aSMichal Kubecek return -EINVAL; 11189ce48e5aSMichal Kubecek 11199ce48e5aSMichal Kubecek indir = kcalloc(dev_size, sizeof(indir[0]), GFP_USER); 11209ce48e5aSMichal Kubecek if (!indir) 11219ce48e5aSMichal Kubecek return -ENOMEM; 11229ce48e5aSMichal Kubecek 11239ce48e5aSMichal Kubecek rx_rings.cmd = ETHTOOL_GRXRINGS; 11249ce48e5aSMichal Kubecek ret = ops->get_rxnfc(dev, &rx_rings, NULL); 11259ce48e5aSMichal Kubecek if (ret) 11269ce48e5aSMichal Kubecek goto out; 11279ce48e5aSMichal Kubecek 11289ce48e5aSMichal Kubecek if (user_size == 0) { 11299ce48e5aSMichal Kubecek for (i = 0; i < dev_size; i++) 11309ce48e5aSMichal Kubecek indir[i] = ethtool_rxfh_indir_default(i, rx_rings.data); 11319ce48e5aSMichal Kubecek } else { 11329ce48e5aSMichal Kubecek ret = ethtool_copy_validate_indir(indir, 11339ce48e5aSMichal Kubecek useraddr + ringidx_offset, 11349ce48e5aSMichal Kubecek &rx_rings, 11359ce48e5aSMichal Kubecek dev_size); 11369ce48e5aSMichal Kubecek if (ret) 11379ce48e5aSMichal Kubecek goto out; 11389ce48e5aSMichal Kubecek } 11399ce48e5aSMichal Kubecek 11409ce48e5aSMichal Kubecek ret = ops->set_rxfh(dev, indir, NULL, ETH_RSS_HASH_NO_CHANGE); 11419ce48e5aSMichal Kubecek if (ret) 11429ce48e5aSMichal Kubecek goto out; 11439ce48e5aSMichal Kubecek 11449ce48e5aSMichal Kubecek /* indicate whether rxfh was set to default */ 11459ce48e5aSMichal Kubecek if (user_size == 0) 11469ce48e5aSMichal Kubecek dev->priv_flags &= ~IFF_RXFH_CONFIGURED; 11479ce48e5aSMichal Kubecek else 11489ce48e5aSMichal Kubecek dev->priv_flags |= IFF_RXFH_CONFIGURED; 11499ce48e5aSMichal Kubecek 11509ce48e5aSMichal Kubecek out: 11519ce48e5aSMichal Kubecek kfree(indir); 11529ce48e5aSMichal Kubecek return ret; 11539ce48e5aSMichal Kubecek } 11549ce48e5aSMichal Kubecek 11559ce48e5aSMichal Kubecek static noinline_for_stack int ethtool_get_rxfh(struct net_device *dev, 11569ce48e5aSMichal Kubecek void __user *useraddr) 11579ce48e5aSMichal Kubecek { 11589ce48e5aSMichal Kubecek int ret; 11599ce48e5aSMichal Kubecek const struct ethtool_ops *ops = dev->ethtool_ops; 11609ce48e5aSMichal Kubecek u32 user_indir_size, user_key_size; 11619ce48e5aSMichal Kubecek u32 dev_indir_size = 0, dev_key_size = 0; 11629ce48e5aSMichal Kubecek struct ethtool_rxfh rxfh; 11639ce48e5aSMichal Kubecek u32 total_size; 11649ce48e5aSMichal Kubecek u32 indir_bytes; 11659ce48e5aSMichal Kubecek u32 *indir = NULL; 11669ce48e5aSMichal Kubecek u8 dev_hfunc = 0; 11679ce48e5aSMichal Kubecek u8 *hkey = NULL; 11689ce48e5aSMichal Kubecek u8 *rss_config; 11699ce48e5aSMichal Kubecek 11709ce48e5aSMichal Kubecek if (!ops->get_rxfh) 11719ce48e5aSMichal Kubecek return -EOPNOTSUPP; 11729ce48e5aSMichal Kubecek 11739ce48e5aSMichal Kubecek if (ops->get_rxfh_indir_size) 11749ce48e5aSMichal Kubecek dev_indir_size = ops->get_rxfh_indir_size(dev); 11759ce48e5aSMichal Kubecek if (ops->get_rxfh_key_size) 11769ce48e5aSMichal Kubecek dev_key_size = ops->get_rxfh_key_size(dev); 11779ce48e5aSMichal Kubecek 11789ce48e5aSMichal Kubecek if (copy_from_user(&rxfh, useraddr, sizeof(rxfh))) 11799ce48e5aSMichal Kubecek return -EFAULT; 11809ce48e5aSMichal Kubecek user_indir_size = rxfh.indir_size; 11819ce48e5aSMichal Kubecek user_key_size = rxfh.key_size; 11829ce48e5aSMichal Kubecek 11839ce48e5aSMichal Kubecek /* Check that reserved fields are 0 for now */ 11849ce48e5aSMichal Kubecek if (rxfh.rsvd8[0] || rxfh.rsvd8[1] || rxfh.rsvd8[2] || rxfh.rsvd32) 11859ce48e5aSMichal Kubecek return -EINVAL; 11869ce48e5aSMichal Kubecek /* Most drivers don't handle rss_context, check it's 0 as well */ 11879ce48e5aSMichal Kubecek if (rxfh.rss_context && !ops->get_rxfh_context) 11889ce48e5aSMichal Kubecek return -EOPNOTSUPP; 11899ce48e5aSMichal Kubecek 11909ce48e5aSMichal Kubecek rxfh.indir_size = dev_indir_size; 11919ce48e5aSMichal Kubecek rxfh.key_size = dev_key_size; 11929ce48e5aSMichal Kubecek if (copy_to_user(useraddr, &rxfh, sizeof(rxfh))) 11939ce48e5aSMichal Kubecek return -EFAULT; 11949ce48e5aSMichal Kubecek 11959ce48e5aSMichal Kubecek if ((user_indir_size && (user_indir_size != dev_indir_size)) || 11969ce48e5aSMichal Kubecek (user_key_size && (user_key_size != dev_key_size))) 11979ce48e5aSMichal Kubecek return -EINVAL; 11989ce48e5aSMichal Kubecek 11999ce48e5aSMichal Kubecek indir_bytes = user_indir_size * sizeof(indir[0]); 12009ce48e5aSMichal Kubecek total_size = indir_bytes + user_key_size; 12019ce48e5aSMichal Kubecek rss_config = kzalloc(total_size, GFP_USER); 12029ce48e5aSMichal Kubecek if (!rss_config) 12039ce48e5aSMichal Kubecek return -ENOMEM; 12049ce48e5aSMichal Kubecek 12059ce48e5aSMichal Kubecek if (user_indir_size) 12069ce48e5aSMichal Kubecek indir = (u32 *)rss_config; 12079ce48e5aSMichal Kubecek 12089ce48e5aSMichal Kubecek if (user_key_size) 12099ce48e5aSMichal Kubecek hkey = rss_config + indir_bytes; 12109ce48e5aSMichal Kubecek 12119ce48e5aSMichal Kubecek if (rxfh.rss_context) 12129ce48e5aSMichal Kubecek ret = dev->ethtool_ops->get_rxfh_context(dev, indir, hkey, 12139ce48e5aSMichal Kubecek &dev_hfunc, 12149ce48e5aSMichal Kubecek rxfh.rss_context); 12159ce48e5aSMichal Kubecek else 12169ce48e5aSMichal Kubecek ret = dev->ethtool_ops->get_rxfh(dev, indir, hkey, &dev_hfunc); 12179ce48e5aSMichal Kubecek if (ret) 12189ce48e5aSMichal Kubecek goto out; 12199ce48e5aSMichal Kubecek 12209ce48e5aSMichal Kubecek if (copy_to_user(useraddr + offsetof(struct ethtool_rxfh, hfunc), 12219ce48e5aSMichal Kubecek &dev_hfunc, sizeof(rxfh.hfunc))) { 12229ce48e5aSMichal Kubecek ret = -EFAULT; 12239ce48e5aSMichal Kubecek } else if (copy_to_user(useraddr + 12249ce48e5aSMichal Kubecek offsetof(struct ethtool_rxfh, rss_config[0]), 12259ce48e5aSMichal Kubecek rss_config, total_size)) { 12269ce48e5aSMichal Kubecek ret = -EFAULT; 12279ce48e5aSMichal Kubecek } 12289ce48e5aSMichal Kubecek out: 12299ce48e5aSMichal Kubecek kfree(rss_config); 12309ce48e5aSMichal Kubecek 12319ce48e5aSMichal Kubecek return ret; 12329ce48e5aSMichal Kubecek } 12339ce48e5aSMichal Kubecek 12349ce48e5aSMichal Kubecek static noinline_for_stack int ethtool_set_rxfh(struct net_device *dev, 12359ce48e5aSMichal Kubecek void __user *useraddr) 12369ce48e5aSMichal Kubecek { 12379ce48e5aSMichal Kubecek int ret; 12389ce48e5aSMichal Kubecek const struct ethtool_ops *ops = dev->ethtool_ops; 12399ce48e5aSMichal Kubecek struct ethtool_rxnfc rx_rings; 12409ce48e5aSMichal Kubecek struct ethtool_rxfh rxfh; 12419ce48e5aSMichal Kubecek u32 dev_indir_size = 0, dev_key_size = 0, i; 12429ce48e5aSMichal Kubecek u32 *indir = NULL, indir_bytes = 0; 12439ce48e5aSMichal Kubecek u8 *hkey = NULL; 12449ce48e5aSMichal Kubecek u8 *rss_config; 12459ce48e5aSMichal Kubecek u32 rss_cfg_offset = offsetof(struct ethtool_rxfh, rss_config[0]); 12469ce48e5aSMichal Kubecek bool delete = false; 12479ce48e5aSMichal Kubecek 12489ce48e5aSMichal Kubecek if (!ops->get_rxnfc || !ops->set_rxfh) 12499ce48e5aSMichal Kubecek return -EOPNOTSUPP; 12509ce48e5aSMichal Kubecek 12519ce48e5aSMichal Kubecek if (ops->get_rxfh_indir_size) 12529ce48e5aSMichal Kubecek dev_indir_size = ops->get_rxfh_indir_size(dev); 12539ce48e5aSMichal Kubecek if (ops->get_rxfh_key_size) 12549ce48e5aSMichal Kubecek dev_key_size = ops->get_rxfh_key_size(dev); 12559ce48e5aSMichal Kubecek 12569ce48e5aSMichal Kubecek if (copy_from_user(&rxfh, useraddr, sizeof(rxfh))) 12579ce48e5aSMichal Kubecek return -EFAULT; 12589ce48e5aSMichal Kubecek 12599ce48e5aSMichal Kubecek /* Check that reserved fields are 0 for now */ 12609ce48e5aSMichal Kubecek if (rxfh.rsvd8[0] || rxfh.rsvd8[1] || rxfh.rsvd8[2] || rxfh.rsvd32) 12619ce48e5aSMichal Kubecek return -EINVAL; 12629ce48e5aSMichal Kubecek /* Most drivers don't handle rss_context, check it's 0 as well */ 12639ce48e5aSMichal Kubecek if (rxfh.rss_context && !ops->set_rxfh_context) 12649ce48e5aSMichal Kubecek return -EOPNOTSUPP; 12659ce48e5aSMichal Kubecek 12669ce48e5aSMichal Kubecek /* If either indir, hash key or function is valid, proceed further. 12679ce48e5aSMichal Kubecek * Must request at least one change: indir size, hash key or function. 12689ce48e5aSMichal Kubecek */ 12699ce48e5aSMichal Kubecek if ((rxfh.indir_size && 12709ce48e5aSMichal Kubecek rxfh.indir_size != ETH_RXFH_INDIR_NO_CHANGE && 12719ce48e5aSMichal Kubecek rxfh.indir_size != dev_indir_size) || 12729ce48e5aSMichal Kubecek (rxfh.key_size && (rxfh.key_size != dev_key_size)) || 12739ce48e5aSMichal Kubecek (rxfh.indir_size == ETH_RXFH_INDIR_NO_CHANGE && 12749ce48e5aSMichal Kubecek rxfh.key_size == 0 && rxfh.hfunc == ETH_RSS_HASH_NO_CHANGE)) 12759ce48e5aSMichal Kubecek return -EINVAL; 12769ce48e5aSMichal Kubecek 12779ce48e5aSMichal Kubecek if (rxfh.indir_size != ETH_RXFH_INDIR_NO_CHANGE) 12789ce48e5aSMichal Kubecek indir_bytes = dev_indir_size * sizeof(indir[0]); 12799ce48e5aSMichal Kubecek 12809ce48e5aSMichal Kubecek rss_config = kzalloc(indir_bytes + rxfh.key_size, GFP_USER); 12819ce48e5aSMichal Kubecek if (!rss_config) 12829ce48e5aSMichal Kubecek return -ENOMEM; 12839ce48e5aSMichal Kubecek 12849ce48e5aSMichal Kubecek rx_rings.cmd = ETHTOOL_GRXRINGS; 12859ce48e5aSMichal Kubecek ret = ops->get_rxnfc(dev, &rx_rings, NULL); 12869ce48e5aSMichal Kubecek if (ret) 12879ce48e5aSMichal Kubecek goto out; 12889ce48e5aSMichal Kubecek 12899ce48e5aSMichal Kubecek /* rxfh.indir_size == 0 means reset the indir table to default (master 12909ce48e5aSMichal Kubecek * context) or delete the context (other RSS contexts). 12919ce48e5aSMichal Kubecek * rxfh.indir_size == ETH_RXFH_INDIR_NO_CHANGE means leave it unchanged. 12929ce48e5aSMichal Kubecek */ 12939ce48e5aSMichal Kubecek if (rxfh.indir_size && 12949ce48e5aSMichal Kubecek rxfh.indir_size != ETH_RXFH_INDIR_NO_CHANGE) { 12959ce48e5aSMichal Kubecek indir = (u32 *)rss_config; 12969ce48e5aSMichal Kubecek ret = ethtool_copy_validate_indir(indir, 12979ce48e5aSMichal Kubecek useraddr + rss_cfg_offset, 12989ce48e5aSMichal Kubecek &rx_rings, 12999ce48e5aSMichal Kubecek rxfh.indir_size); 13009ce48e5aSMichal Kubecek if (ret) 13019ce48e5aSMichal Kubecek goto out; 13029ce48e5aSMichal Kubecek } else if (rxfh.indir_size == 0) { 13039ce48e5aSMichal Kubecek if (rxfh.rss_context == 0) { 13049ce48e5aSMichal Kubecek indir = (u32 *)rss_config; 13059ce48e5aSMichal Kubecek for (i = 0; i < dev_indir_size; i++) 13069ce48e5aSMichal Kubecek indir[i] = ethtool_rxfh_indir_default(i, rx_rings.data); 13079ce48e5aSMichal Kubecek } else { 13089ce48e5aSMichal Kubecek delete = true; 13099ce48e5aSMichal Kubecek } 13109ce48e5aSMichal Kubecek } 13119ce48e5aSMichal Kubecek 13129ce48e5aSMichal Kubecek if (rxfh.key_size) { 13139ce48e5aSMichal Kubecek hkey = rss_config + indir_bytes; 13149ce48e5aSMichal Kubecek if (copy_from_user(hkey, 13159ce48e5aSMichal Kubecek useraddr + rss_cfg_offset + indir_bytes, 13169ce48e5aSMichal Kubecek rxfh.key_size)) { 13179ce48e5aSMichal Kubecek ret = -EFAULT; 13189ce48e5aSMichal Kubecek goto out; 13199ce48e5aSMichal Kubecek } 13209ce48e5aSMichal Kubecek } 13219ce48e5aSMichal Kubecek 13229ce48e5aSMichal Kubecek if (rxfh.rss_context) 13239ce48e5aSMichal Kubecek ret = ops->set_rxfh_context(dev, indir, hkey, rxfh.hfunc, 13249ce48e5aSMichal Kubecek &rxfh.rss_context, delete); 13259ce48e5aSMichal Kubecek else 13269ce48e5aSMichal Kubecek ret = ops->set_rxfh(dev, indir, hkey, rxfh.hfunc); 13279ce48e5aSMichal Kubecek if (ret) 13289ce48e5aSMichal Kubecek goto out; 13299ce48e5aSMichal Kubecek 13309ce48e5aSMichal Kubecek if (copy_to_user(useraddr + offsetof(struct ethtool_rxfh, rss_context), 13319ce48e5aSMichal Kubecek &rxfh.rss_context, sizeof(rxfh.rss_context))) 13329ce48e5aSMichal Kubecek ret = -EFAULT; 13339ce48e5aSMichal Kubecek 13349ce48e5aSMichal Kubecek if (!rxfh.rss_context) { 13359ce48e5aSMichal Kubecek /* indicate whether rxfh was set to default */ 13369ce48e5aSMichal Kubecek if (rxfh.indir_size == 0) 13379ce48e5aSMichal Kubecek dev->priv_flags &= ~IFF_RXFH_CONFIGURED; 13389ce48e5aSMichal Kubecek else if (rxfh.indir_size != ETH_RXFH_INDIR_NO_CHANGE) 13399ce48e5aSMichal Kubecek dev->priv_flags |= IFF_RXFH_CONFIGURED; 13409ce48e5aSMichal Kubecek } 13419ce48e5aSMichal Kubecek 13429ce48e5aSMichal Kubecek out: 13439ce48e5aSMichal Kubecek kfree(rss_config); 13449ce48e5aSMichal Kubecek return ret; 13459ce48e5aSMichal Kubecek } 13469ce48e5aSMichal Kubecek 13479ce48e5aSMichal Kubecek static int ethtool_get_regs(struct net_device *dev, char __user *useraddr) 13489ce48e5aSMichal Kubecek { 13499ce48e5aSMichal Kubecek struct ethtool_regs regs; 13509ce48e5aSMichal Kubecek const struct ethtool_ops *ops = dev->ethtool_ops; 13519ce48e5aSMichal Kubecek void *regbuf; 13529ce48e5aSMichal Kubecek int reglen, ret; 13539ce48e5aSMichal Kubecek 13549ce48e5aSMichal Kubecek if (!ops->get_regs || !ops->get_regs_len) 13559ce48e5aSMichal Kubecek return -EOPNOTSUPP; 13569ce48e5aSMichal Kubecek 13579ce48e5aSMichal Kubecek if (copy_from_user(®s, useraddr, sizeof(regs))) 13589ce48e5aSMichal Kubecek return -EFAULT; 13599ce48e5aSMichal Kubecek 13609ce48e5aSMichal Kubecek reglen = ops->get_regs_len(dev); 13619ce48e5aSMichal Kubecek if (reglen <= 0) 13629ce48e5aSMichal Kubecek return reglen; 13639ce48e5aSMichal Kubecek 13649ce48e5aSMichal Kubecek if (regs.len > reglen) 13659ce48e5aSMichal Kubecek regs.len = reglen; 13669ce48e5aSMichal Kubecek 13679ce48e5aSMichal Kubecek regbuf = vzalloc(reglen); 13689ce48e5aSMichal Kubecek if (!regbuf) 13699ce48e5aSMichal Kubecek return -ENOMEM; 13709ce48e5aSMichal Kubecek 13719ce48e5aSMichal Kubecek if (regs.len < reglen) 13729ce48e5aSMichal Kubecek reglen = regs.len; 13739ce48e5aSMichal Kubecek 13749ce48e5aSMichal Kubecek ops->get_regs(dev, ®s, regbuf); 13759ce48e5aSMichal Kubecek 13769ce48e5aSMichal Kubecek ret = -EFAULT; 13779ce48e5aSMichal Kubecek if (copy_to_user(useraddr, ®s, sizeof(regs))) 13789ce48e5aSMichal Kubecek goto out; 13799ce48e5aSMichal Kubecek useraddr += offsetof(struct ethtool_regs, data); 13809ce48e5aSMichal Kubecek if (copy_to_user(useraddr, regbuf, reglen)) 13819ce48e5aSMichal Kubecek goto out; 13829ce48e5aSMichal Kubecek ret = 0; 13839ce48e5aSMichal Kubecek 13849ce48e5aSMichal Kubecek out: 13859ce48e5aSMichal Kubecek vfree(regbuf); 13869ce48e5aSMichal Kubecek return ret; 13879ce48e5aSMichal Kubecek } 13889ce48e5aSMichal Kubecek 13899ce48e5aSMichal Kubecek static int ethtool_reset(struct net_device *dev, char __user *useraddr) 13909ce48e5aSMichal Kubecek { 13919ce48e5aSMichal Kubecek struct ethtool_value reset; 13929ce48e5aSMichal Kubecek int ret; 13939ce48e5aSMichal Kubecek 13949ce48e5aSMichal Kubecek if (!dev->ethtool_ops->reset) 13959ce48e5aSMichal Kubecek return -EOPNOTSUPP; 13969ce48e5aSMichal Kubecek 13979ce48e5aSMichal Kubecek if (copy_from_user(&reset, useraddr, sizeof(reset))) 13989ce48e5aSMichal Kubecek return -EFAULT; 13999ce48e5aSMichal Kubecek 14009ce48e5aSMichal Kubecek ret = dev->ethtool_ops->reset(dev, &reset.data); 14019ce48e5aSMichal Kubecek if (ret) 14029ce48e5aSMichal Kubecek return ret; 14039ce48e5aSMichal Kubecek 14049ce48e5aSMichal Kubecek if (copy_to_user(useraddr, &reset, sizeof(reset))) 14059ce48e5aSMichal Kubecek return -EFAULT; 14069ce48e5aSMichal Kubecek return 0; 14079ce48e5aSMichal Kubecek } 14089ce48e5aSMichal Kubecek 14099ce48e5aSMichal Kubecek static int ethtool_get_wol(struct net_device *dev, char __user *useraddr) 14109ce48e5aSMichal Kubecek { 14119ce48e5aSMichal Kubecek struct ethtool_wolinfo wol; 14129ce48e5aSMichal Kubecek 14139ce48e5aSMichal Kubecek if (!dev->ethtool_ops->get_wol) 14149ce48e5aSMichal Kubecek return -EOPNOTSUPP; 14159ce48e5aSMichal Kubecek 14169ce48e5aSMichal Kubecek memset(&wol, 0, sizeof(struct ethtool_wolinfo)); 14179ce48e5aSMichal Kubecek wol.cmd = ETHTOOL_GWOL; 14189ce48e5aSMichal Kubecek dev->ethtool_ops->get_wol(dev, &wol); 14199ce48e5aSMichal Kubecek 14209ce48e5aSMichal Kubecek if (copy_to_user(useraddr, &wol, sizeof(wol))) 14219ce48e5aSMichal Kubecek return -EFAULT; 14229ce48e5aSMichal Kubecek return 0; 14239ce48e5aSMichal Kubecek } 14249ce48e5aSMichal Kubecek 14259ce48e5aSMichal Kubecek static int ethtool_set_wol(struct net_device *dev, char __user *useraddr) 14269ce48e5aSMichal Kubecek { 14279ce48e5aSMichal Kubecek struct ethtool_wolinfo wol; 14289ce48e5aSMichal Kubecek int ret; 14299ce48e5aSMichal Kubecek 14309ce48e5aSMichal Kubecek if (!dev->ethtool_ops->set_wol) 14319ce48e5aSMichal Kubecek return -EOPNOTSUPP; 14329ce48e5aSMichal Kubecek 14339ce48e5aSMichal Kubecek if (copy_from_user(&wol, useraddr, sizeof(wol))) 14349ce48e5aSMichal Kubecek return -EFAULT; 14359ce48e5aSMichal Kubecek 14369ce48e5aSMichal Kubecek ret = dev->ethtool_ops->set_wol(dev, &wol); 14379ce48e5aSMichal Kubecek if (ret) 14389ce48e5aSMichal Kubecek return ret; 14399ce48e5aSMichal Kubecek 14409ce48e5aSMichal Kubecek dev->wol_enabled = !!wol.wolopts; 144167bffa79SMichal Kubecek ethtool_notify(dev, ETHTOOL_MSG_WOL_NTF, NULL); 14429ce48e5aSMichal Kubecek 14439ce48e5aSMichal Kubecek return 0; 14449ce48e5aSMichal Kubecek } 14459ce48e5aSMichal Kubecek 14469ce48e5aSMichal Kubecek static int ethtool_get_eee(struct net_device *dev, char __user *useraddr) 14479ce48e5aSMichal Kubecek { 14489ce48e5aSMichal Kubecek struct ethtool_eee edata; 14499ce48e5aSMichal Kubecek int rc; 14509ce48e5aSMichal Kubecek 14519ce48e5aSMichal Kubecek if (!dev->ethtool_ops->get_eee) 14529ce48e5aSMichal Kubecek return -EOPNOTSUPP; 14539ce48e5aSMichal Kubecek 14549ce48e5aSMichal Kubecek memset(&edata, 0, sizeof(struct ethtool_eee)); 14559ce48e5aSMichal Kubecek edata.cmd = ETHTOOL_GEEE; 14569ce48e5aSMichal Kubecek rc = dev->ethtool_ops->get_eee(dev, &edata); 14579ce48e5aSMichal Kubecek 14589ce48e5aSMichal Kubecek if (rc) 14599ce48e5aSMichal Kubecek return rc; 14609ce48e5aSMichal Kubecek 14619ce48e5aSMichal Kubecek if (copy_to_user(useraddr, &edata, sizeof(edata))) 14629ce48e5aSMichal Kubecek return -EFAULT; 14639ce48e5aSMichal Kubecek 14649ce48e5aSMichal Kubecek return 0; 14659ce48e5aSMichal Kubecek } 14669ce48e5aSMichal Kubecek 14679ce48e5aSMichal Kubecek static int ethtool_set_eee(struct net_device *dev, char __user *useraddr) 14689ce48e5aSMichal Kubecek { 14699ce48e5aSMichal Kubecek struct ethtool_eee edata; 14706c5bc8feSMichal Kubecek int ret; 14719ce48e5aSMichal Kubecek 14729ce48e5aSMichal Kubecek if (!dev->ethtool_ops->set_eee) 14739ce48e5aSMichal Kubecek return -EOPNOTSUPP; 14749ce48e5aSMichal Kubecek 14759ce48e5aSMichal Kubecek if (copy_from_user(&edata, useraddr, sizeof(edata))) 14769ce48e5aSMichal Kubecek return -EFAULT; 14779ce48e5aSMichal Kubecek 14786c5bc8feSMichal Kubecek ret = dev->ethtool_ops->set_eee(dev, &edata); 14796c5bc8feSMichal Kubecek if (!ret) 14806c5bc8feSMichal Kubecek ethtool_notify(dev, ETHTOOL_MSG_EEE_NTF, NULL); 14816c5bc8feSMichal Kubecek return ret; 14829ce48e5aSMichal Kubecek } 14839ce48e5aSMichal Kubecek 14849ce48e5aSMichal Kubecek static int ethtool_nway_reset(struct net_device *dev) 14859ce48e5aSMichal Kubecek { 14869ce48e5aSMichal Kubecek if (!dev->ethtool_ops->nway_reset) 14879ce48e5aSMichal Kubecek return -EOPNOTSUPP; 14889ce48e5aSMichal Kubecek 14899ce48e5aSMichal Kubecek return dev->ethtool_ops->nway_reset(dev); 14909ce48e5aSMichal Kubecek } 14919ce48e5aSMichal Kubecek 14929ce48e5aSMichal Kubecek static int ethtool_get_link(struct net_device *dev, char __user *useraddr) 14939ce48e5aSMichal Kubecek { 14949ce48e5aSMichal Kubecek struct ethtool_value edata = { .cmd = ETHTOOL_GLINK }; 14953d2b847fSMichal Kubecek int link = __ethtool_get_link(dev); 14969ce48e5aSMichal Kubecek 14973d2b847fSMichal Kubecek if (link < 0) 14983d2b847fSMichal Kubecek return link; 14999ce48e5aSMichal Kubecek 15003d2b847fSMichal Kubecek edata.data = link; 15019ce48e5aSMichal Kubecek if (copy_to_user(useraddr, &edata, sizeof(edata))) 15029ce48e5aSMichal Kubecek return -EFAULT; 15039ce48e5aSMichal Kubecek return 0; 15049ce48e5aSMichal Kubecek } 15059ce48e5aSMichal Kubecek 15069ce48e5aSMichal Kubecek static int ethtool_get_any_eeprom(struct net_device *dev, void __user *useraddr, 15079ce48e5aSMichal Kubecek int (*getter)(struct net_device *, 15089ce48e5aSMichal Kubecek struct ethtool_eeprom *, u8 *), 15099ce48e5aSMichal Kubecek u32 total_len) 15109ce48e5aSMichal Kubecek { 15119ce48e5aSMichal Kubecek struct ethtool_eeprom eeprom; 15129ce48e5aSMichal Kubecek void __user *userbuf = useraddr + sizeof(eeprom); 15139ce48e5aSMichal Kubecek u32 bytes_remaining; 15149ce48e5aSMichal Kubecek u8 *data; 15159ce48e5aSMichal Kubecek int ret = 0; 15169ce48e5aSMichal Kubecek 15179ce48e5aSMichal Kubecek if (copy_from_user(&eeprom, useraddr, sizeof(eeprom))) 15189ce48e5aSMichal Kubecek return -EFAULT; 15199ce48e5aSMichal Kubecek 15209ce48e5aSMichal Kubecek /* Check for wrap and zero */ 15219ce48e5aSMichal Kubecek if (eeprom.offset + eeprom.len <= eeprom.offset) 15229ce48e5aSMichal Kubecek return -EINVAL; 15239ce48e5aSMichal Kubecek 15249ce48e5aSMichal Kubecek /* Check for exceeding total eeprom len */ 15259ce48e5aSMichal Kubecek if (eeprom.offset + eeprom.len > total_len) 15269ce48e5aSMichal Kubecek return -EINVAL; 15279ce48e5aSMichal Kubecek 152880ec82e3SAustin Kim data = kzalloc(PAGE_SIZE, GFP_USER); 15299ce48e5aSMichal Kubecek if (!data) 15309ce48e5aSMichal Kubecek return -ENOMEM; 15319ce48e5aSMichal Kubecek 15329ce48e5aSMichal Kubecek bytes_remaining = eeprom.len; 15339ce48e5aSMichal Kubecek while (bytes_remaining > 0) { 15349ce48e5aSMichal Kubecek eeprom.len = min(bytes_remaining, (u32)PAGE_SIZE); 15359ce48e5aSMichal Kubecek 15369ce48e5aSMichal Kubecek ret = getter(dev, &eeprom, data); 15379ce48e5aSMichal Kubecek if (ret) 15389ce48e5aSMichal Kubecek break; 15399ce48e5aSMichal Kubecek if (copy_to_user(userbuf, data, eeprom.len)) { 15409ce48e5aSMichal Kubecek ret = -EFAULT; 15419ce48e5aSMichal Kubecek break; 15429ce48e5aSMichal Kubecek } 15439ce48e5aSMichal Kubecek userbuf += eeprom.len; 15449ce48e5aSMichal Kubecek eeprom.offset += eeprom.len; 15459ce48e5aSMichal Kubecek bytes_remaining -= eeprom.len; 15469ce48e5aSMichal Kubecek } 15479ce48e5aSMichal Kubecek 15489ce48e5aSMichal Kubecek eeprom.len = userbuf - (useraddr + sizeof(eeprom)); 15499ce48e5aSMichal Kubecek eeprom.offset -= eeprom.len; 15509ce48e5aSMichal Kubecek if (copy_to_user(useraddr, &eeprom, sizeof(eeprom))) 15519ce48e5aSMichal Kubecek ret = -EFAULT; 15529ce48e5aSMichal Kubecek 15539ce48e5aSMichal Kubecek kfree(data); 15549ce48e5aSMichal Kubecek return ret; 15559ce48e5aSMichal Kubecek } 15569ce48e5aSMichal Kubecek 15579ce48e5aSMichal Kubecek static int ethtool_get_eeprom(struct net_device *dev, void __user *useraddr) 15589ce48e5aSMichal Kubecek { 15599ce48e5aSMichal Kubecek const struct ethtool_ops *ops = dev->ethtool_ops; 15609ce48e5aSMichal Kubecek 15619ce48e5aSMichal Kubecek if (!ops->get_eeprom || !ops->get_eeprom_len || 15629ce48e5aSMichal Kubecek !ops->get_eeprom_len(dev)) 15639ce48e5aSMichal Kubecek return -EOPNOTSUPP; 15649ce48e5aSMichal Kubecek 15659ce48e5aSMichal Kubecek return ethtool_get_any_eeprom(dev, useraddr, ops->get_eeprom, 15669ce48e5aSMichal Kubecek ops->get_eeprom_len(dev)); 15679ce48e5aSMichal Kubecek } 15689ce48e5aSMichal Kubecek 15699ce48e5aSMichal Kubecek static int ethtool_set_eeprom(struct net_device *dev, void __user *useraddr) 15709ce48e5aSMichal Kubecek { 15719ce48e5aSMichal Kubecek struct ethtool_eeprom eeprom; 15729ce48e5aSMichal Kubecek const struct ethtool_ops *ops = dev->ethtool_ops; 15739ce48e5aSMichal Kubecek void __user *userbuf = useraddr + sizeof(eeprom); 15749ce48e5aSMichal Kubecek u32 bytes_remaining; 15759ce48e5aSMichal Kubecek u8 *data; 15769ce48e5aSMichal Kubecek int ret = 0; 15779ce48e5aSMichal Kubecek 15789ce48e5aSMichal Kubecek if (!ops->set_eeprom || !ops->get_eeprom_len || 15799ce48e5aSMichal Kubecek !ops->get_eeprom_len(dev)) 15809ce48e5aSMichal Kubecek return -EOPNOTSUPP; 15819ce48e5aSMichal Kubecek 15829ce48e5aSMichal Kubecek if (copy_from_user(&eeprom, useraddr, sizeof(eeprom))) 15839ce48e5aSMichal Kubecek return -EFAULT; 15849ce48e5aSMichal Kubecek 15859ce48e5aSMichal Kubecek /* Check for wrap and zero */ 15869ce48e5aSMichal Kubecek if (eeprom.offset + eeprom.len <= eeprom.offset) 15879ce48e5aSMichal Kubecek return -EINVAL; 15889ce48e5aSMichal Kubecek 15899ce48e5aSMichal Kubecek /* Check for exceeding total eeprom len */ 15909ce48e5aSMichal Kubecek if (eeprom.offset + eeprom.len > ops->get_eeprom_len(dev)) 15919ce48e5aSMichal Kubecek return -EINVAL; 15929ce48e5aSMichal Kubecek 159380ec82e3SAustin Kim data = kzalloc(PAGE_SIZE, GFP_USER); 15949ce48e5aSMichal Kubecek if (!data) 15959ce48e5aSMichal Kubecek return -ENOMEM; 15969ce48e5aSMichal Kubecek 15979ce48e5aSMichal Kubecek bytes_remaining = eeprom.len; 15989ce48e5aSMichal Kubecek while (bytes_remaining > 0) { 15999ce48e5aSMichal Kubecek eeprom.len = min(bytes_remaining, (u32)PAGE_SIZE); 16009ce48e5aSMichal Kubecek 16019ce48e5aSMichal Kubecek if (copy_from_user(data, userbuf, eeprom.len)) { 16029ce48e5aSMichal Kubecek ret = -EFAULT; 16039ce48e5aSMichal Kubecek break; 16049ce48e5aSMichal Kubecek } 16059ce48e5aSMichal Kubecek ret = ops->set_eeprom(dev, &eeprom, data); 16069ce48e5aSMichal Kubecek if (ret) 16079ce48e5aSMichal Kubecek break; 16089ce48e5aSMichal Kubecek userbuf += eeprom.len; 16099ce48e5aSMichal Kubecek eeprom.offset += eeprom.len; 16109ce48e5aSMichal Kubecek bytes_remaining -= eeprom.len; 16119ce48e5aSMichal Kubecek } 16129ce48e5aSMichal Kubecek 16139ce48e5aSMichal Kubecek kfree(data); 16149ce48e5aSMichal Kubecek return ret; 16159ce48e5aSMichal Kubecek } 16169ce48e5aSMichal Kubecek 16179ce48e5aSMichal Kubecek static noinline_for_stack int ethtool_get_coalesce(struct net_device *dev, 16189ce48e5aSMichal Kubecek void __user *useraddr) 16199ce48e5aSMichal Kubecek { 16209ce48e5aSMichal Kubecek struct ethtool_coalesce coalesce = { .cmd = ETHTOOL_GCOALESCE }; 162131610711SHeiner Kallweit int ret; 16229ce48e5aSMichal Kubecek 16239ce48e5aSMichal Kubecek if (!dev->ethtool_ops->get_coalesce) 16249ce48e5aSMichal Kubecek return -EOPNOTSUPP; 16259ce48e5aSMichal Kubecek 162631610711SHeiner Kallweit ret = dev->ethtool_ops->get_coalesce(dev, &coalesce); 162731610711SHeiner Kallweit if (ret) 162831610711SHeiner Kallweit return ret; 16299ce48e5aSMichal Kubecek 16309ce48e5aSMichal Kubecek if (copy_to_user(useraddr, &coalesce, sizeof(coalesce))) 16319ce48e5aSMichal Kubecek return -EFAULT; 16329ce48e5aSMichal Kubecek return 0; 16339ce48e5aSMichal Kubecek } 16349ce48e5aSMichal Kubecek 163595cddcb5SJakub Kicinski static bool 163695cddcb5SJakub Kicinski ethtool_set_coalesce_supported(struct net_device *dev, 163795cddcb5SJakub Kicinski struct ethtool_coalesce *coalesce) 163895cddcb5SJakub Kicinski { 163995cddcb5SJakub Kicinski u32 supported_params = dev->ethtool_ops->supported_coalesce_params; 164095cddcb5SJakub Kicinski u32 nonzero_params = 0; 164195cddcb5SJakub Kicinski 164295cddcb5SJakub Kicinski if (coalesce->rx_coalesce_usecs) 164395cddcb5SJakub Kicinski nonzero_params |= ETHTOOL_COALESCE_RX_USECS; 164495cddcb5SJakub Kicinski if (coalesce->rx_max_coalesced_frames) 164595cddcb5SJakub Kicinski nonzero_params |= ETHTOOL_COALESCE_RX_MAX_FRAMES; 164695cddcb5SJakub Kicinski if (coalesce->rx_coalesce_usecs_irq) 164795cddcb5SJakub Kicinski nonzero_params |= ETHTOOL_COALESCE_RX_USECS_IRQ; 164895cddcb5SJakub Kicinski if (coalesce->rx_max_coalesced_frames_irq) 164995cddcb5SJakub Kicinski nonzero_params |= ETHTOOL_COALESCE_RX_MAX_FRAMES_IRQ; 165095cddcb5SJakub Kicinski if (coalesce->tx_coalesce_usecs) 165195cddcb5SJakub Kicinski nonzero_params |= ETHTOOL_COALESCE_TX_USECS; 165295cddcb5SJakub Kicinski if (coalesce->tx_max_coalesced_frames) 165395cddcb5SJakub Kicinski nonzero_params |= ETHTOOL_COALESCE_TX_MAX_FRAMES; 165495cddcb5SJakub Kicinski if (coalesce->tx_coalesce_usecs_irq) 165595cddcb5SJakub Kicinski nonzero_params |= ETHTOOL_COALESCE_TX_USECS_IRQ; 165695cddcb5SJakub Kicinski if (coalesce->tx_max_coalesced_frames_irq) 165795cddcb5SJakub Kicinski nonzero_params |= ETHTOOL_COALESCE_TX_MAX_FRAMES_IRQ; 165895cddcb5SJakub Kicinski if (coalesce->stats_block_coalesce_usecs) 165995cddcb5SJakub Kicinski nonzero_params |= ETHTOOL_COALESCE_STATS_BLOCK_USECS; 166095cddcb5SJakub Kicinski if (coalesce->use_adaptive_rx_coalesce) 166195cddcb5SJakub Kicinski nonzero_params |= ETHTOOL_COALESCE_USE_ADAPTIVE_RX; 166295cddcb5SJakub Kicinski if (coalesce->use_adaptive_tx_coalesce) 166395cddcb5SJakub Kicinski nonzero_params |= ETHTOOL_COALESCE_USE_ADAPTIVE_TX; 166495cddcb5SJakub Kicinski if (coalesce->pkt_rate_low) 166595cddcb5SJakub Kicinski nonzero_params |= ETHTOOL_COALESCE_PKT_RATE_LOW; 166695cddcb5SJakub Kicinski if (coalesce->rx_coalesce_usecs_low) 166795cddcb5SJakub Kicinski nonzero_params |= ETHTOOL_COALESCE_RX_USECS_LOW; 166895cddcb5SJakub Kicinski if (coalesce->rx_max_coalesced_frames_low) 166995cddcb5SJakub Kicinski nonzero_params |= ETHTOOL_COALESCE_RX_MAX_FRAMES_LOW; 167095cddcb5SJakub Kicinski if (coalesce->tx_coalesce_usecs_low) 167195cddcb5SJakub Kicinski nonzero_params |= ETHTOOL_COALESCE_TX_USECS_LOW; 167295cddcb5SJakub Kicinski if (coalesce->tx_max_coalesced_frames_low) 167395cddcb5SJakub Kicinski nonzero_params |= ETHTOOL_COALESCE_TX_MAX_FRAMES_LOW; 167495cddcb5SJakub Kicinski if (coalesce->pkt_rate_high) 167595cddcb5SJakub Kicinski nonzero_params |= ETHTOOL_COALESCE_PKT_RATE_HIGH; 167695cddcb5SJakub Kicinski if (coalesce->rx_coalesce_usecs_high) 167795cddcb5SJakub Kicinski nonzero_params |= ETHTOOL_COALESCE_RX_USECS_HIGH; 167895cddcb5SJakub Kicinski if (coalesce->rx_max_coalesced_frames_high) 167995cddcb5SJakub Kicinski nonzero_params |= ETHTOOL_COALESCE_RX_MAX_FRAMES_HIGH; 168095cddcb5SJakub Kicinski if (coalesce->tx_coalesce_usecs_high) 168195cddcb5SJakub Kicinski nonzero_params |= ETHTOOL_COALESCE_TX_USECS_HIGH; 168295cddcb5SJakub Kicinski if (coalesce->tx_max_coalesced_frames_high) 168395cddcb5SJakub Kicinski nonzero_params |= ETHTOOL_COALESCE_TX_MAX_FRAMES_HIGH; 168495cddcb5SJakub Kicinski if (coalesce->rate_sample_interval) 168595cddcb5SJakub Kicinski nonzero_params |= ETHTOOL_COALESCE_RATE_SAMPLE_INTERVAL; 168695cddcb5SJakub Kicinski 168795cddcb5SJakub Kicinski return (supported_params & nonzero_params) == nonzero_params; 168895cddcb5SJakub Kicinski } 168995cddcb5SJakub Kicinski 16909ce48e5aSMichal Kubecek static noinline_for_stack int ethtool_set_coalesce(struct net_device *dev, 16919ce48e5aSMichal Kubecek void __user *useraddr) 16929ce48e5aSMichal Kubecek { 16939ce48e5aSMichal Kubecek struct ethtool_coalesce coalesce; 16940cf3eac8SMichal Kubecek int ret; 16959ce48e5aSMichal Kubecek 16969ce48e5aSMichal Kubecek if (!dev->ethtool_ops->set_coalesce) 16979ce48e5aSMichal Kubecek return -EOPNOTSUPP; 16989ce48e5aSMichal Kubecek 16999ce48e5aSMichal Kubecek if (copy_from_user(&coalesce, useraddr, sizeof(coalesce))) 17009ce48e5aSMichal Kubecek return -EFAULT; 17019ce48e5aSMichal Kubecek 170295cddcb5SJakub Kicinski if (!ethtool_set_coalesce_supported(dev, &coalesce)) 170395cddcb5SJakub Kicinski return -EOPNOTSUPP; 170495cddcb5SJakub Kicinski 17050cf3eac8SMichal Kubecek ret = dev->ethtool_ops->set_coalesce(dev, &coalesce); 17060cf3eac8SMichal Kubecek if (!ret) 17070cf3eac8SMichal Kubecek ethtool_notify(dev, ETHTOOL_MSG_COALESCE_NTF, NULL); 17080cf3eac8SMichal Kubecek return ret; 17099ce48e5aSMichal Kubecek } 17109ce48e5aSMichal Kubecek 17119ce48e5aSMichal Kubecek static int ethtool_get_ringparam(struct net_device *dev, void __user *useraddr) 17129ce48e5aSMichal Kubecek { 17139ce48e5aSMichal Kubecek struct ethtool_ringparam ringparam = { .cmd = ETHTOOL_GRINGPARAM }; 17149ce48e5aSMichal Kubecek 17159ce48e5aSMichal Kubecek if (!dev->ethtool_ops->get_ringparam) 17169ce48e5aSMichal Kubecek return -EOPNOTSUPP; 17179ce48e5aSMichal Kubecek 17189ce48e5aSMichal Kubecek dev->ethtool_ops->get_ringparam(dev, &ringparam); 17199ce48e5aSMichal Kubecek 17209ce48e5aSMichal Kubecek if (copy_to_user(useraddr, &ringparam, sizeof(ringparam))) 17219ce48e5aSMichal Kubecek return -EFAULT; 17229ce48e5aSMichal Kubecek return 0; 17239ce48e5aSMichal Kubecek } 17249ce48e5aSMichal Kubecek 17259ce48e5aSMichal Kubecek static int ethtool_set_ringparam(struct net_device *dev, void __user *useraddr) 17269ce48e5aSMichal Kubecek { 17279ce48e5aSMichal Kubecek struct ethtool_ringparam ringparam, max = { .cmd = ETHTOOL_GRINGPARAM }; 1728bc9d1c99SMichal Kubecek int ret; 17299ce48e5aSMichal Kubecek 17309ce48e5aSMichal Kubecek if (!dev->ethtool_ops->set_ringparam || !dev->ethtool_ops->get_ringparam) 17319ce48e5aSMichal Kubecek return -EOPNOTSUPP; 17329ce48e5aSMichal Kubecek 17339ce48e5aSMichal Kubecek if (copy_from_user(&ringparam, useraddr, sizeof(ringparam))) 17349ce48e5aSMichal Kubecek return -EFAULT; 17359ce48e5aSMichal Kubecek 17369ce48e5aSMichal Kubecek dev->ethtool_ops->get_ringparam(dev, &max); 17379ce48e5aSMichal Kubecek 17389ce48e5aSMichal Kubecek /* ensure new ring parameters are within the maximums */ 17399ce48e5aSMichal Kubecek if (ringparam.rx_pending > max.rx_max_pending || 17409ce48e5aSMichal Kubecek ringparam.rx_mini_pending > max.rx_mini_max_pending || 17419ce48e5aSMichal Kubecek ringparam.rx_jumbo_pending > max.rx_jumbo_max_pending || 17429ce48e5aSMichal Kubecek ringparam.tx_pending > max.tx_max_pending) 17439ce48e5aSMichal Kubecek return -EINVAL; 17449ce48e5aSMichal Kubecek 1745bc9d1c99SMichal Kubecek ret = dev->ethtool_ops->set_ringparam(dev, &ringparam); 1746bc9d1c99SMichal Kubecek if (!ret) 1747bc9d1c99SMichal Kubecek ethtool_notify(dev, ETHTOOL_MSG_RINGS_NTF, NULL); 1748bc9d1c99SMichal Kubecek return ret; 17499ce48e5aSMichal Kubecek } 17509ce48e5aSMichal Kubecek 17519ce48e5aSMichal Kubecek static noinline_for_stack int ethtool_get_channels(struct net_device *dev, 17529ce48e5aSMichal Kubecek void __user *useraddr) 17539ce48e5aSMichal Kubecek { 17549ce48e5aSMichal Kubecek struct ethtool_channels channels = { .cmd = ETHTOOL_GCHANNELS }; 17559ce48e5aSMichal Kubecek 17569ce48e5aSMichal Kubecek if (!dev->ethtool_ops->get_channels) 17579ce48e5aSMichal Kubecek return -EOPNOTSUPP; 17589ce48e5aSMichal Kubecek 17599ce48e5aSMichal Kubecek dev->ethtool_ops->get_channels(dev, &channels); 17609ce48e5aSMichal Kubecek 17619ce48e5aSMichal Kubecek if (copy_to_user(useraddr, &channels, sizeof(channels))) 17629ce48e5aSMichal Kubecek return -EFAULT; 17639ce48e5aSMichal Kubecek return 0; 17649ce48e5aSMichal Kubecek } 17659ce48e5aSMichal Kubecek 17669ce48e5aSMichal Kubecek static noinline_for_stack int ethtool_set_channels(struct net_device *dev, 17679ce48e5aSMichal Kubecek void __user *useraddr) 17689ce48e5aSMichal Kubecek { 17699ce48e5aSMichal Kubecek struct ethtool_channels channels, curr = { .cmd = ETHTOOL_GCHANNELS }; 17709ce48e5aSMichal Kubecek u16 from_channel, to_channel; 17719ce48e5aSMichal Kubecek u32 max_rx_in_use = 0; 17729ce48e5aSMichal Kubecek unsigned int i; 1773546379b9SMichal Kubecek int ret; 17749ce48e5aSMichal Kubecek 17759ce48e5aSMichal Kubecek if (!dev->ethtool_ops->set_channels || !dev->ethtool_ops->get_channels) 17769ce48e5aSMichal Kubecek return -EOPNOTSUPP; 17779ce48e5aSMichal Kubecek 17789ce48e5aSMichal Kubecek if (copy_from_user(&channels, useraddr, sizeof(channels))) 17799ce48e5aSMichal Kubecek return -EFAULT; 17809ce48e5aSMichal Kubecek 17819ce48e5aSMichal Kubecek dev->ethtool_ops->get_channels(dev, &curr); 17829ce48e5aSMichal Kubecek 178375c36dbbSJakub Kicinski if (channels.rx_count == curr.rx_count && 178475c36dbbSJakub Kicinski channels.tx_count == curr.tx_count && 178575c36dbbSJakub Kicinski channels.combined_count == curr.combined_count && 178675c36dbbSJakub Kicinski channels.other_count == curr.other_count) 178775c36dbbSJakub Kicinski return 0; 178875c36dbbSJakub Kicinski 17899ce48e5aSMichal Kubecek /* ensure new counts are within the maximums */ 17909ce48e5aSMichal Kubecek if (channels.rx_count > curr.max_rx || 17919ce48e5aSMichal Kubecek channels.tx_count > curr.max_tx || 17929ce48e5aSMichal Kubecek channels.combined_count > curr.max_combined || 17939ce48e5aSMichal Kubecek channels.other_count > curr.max_other) 17949ce48e5aSMichal Kubecek return -EINVAL; 17959ce48e5aSMichal Kubecek 17967be92514SJakub Kicinski /* ensure there is at least one RX and one TX channel */ 17977be92514SJakub Kicinski if (!channels.combined_count && 17987be92514SJakub Kicinski (!channels.rx_count || !channels.tx_count)) 17997be92514SJakub Kicinski return -EINVAL; 18007be92514SJakub Kicinski 18019ce48e5aSMichal Kubecek /* ensure the new Rx count fits within the configured Rx flow 18029ce48e5aSMichal Kubecek * indirection table settings */ 18039ce48e5aSMichal Kubecek if (netif_is_rxfh_configured(dev) && 18049ce48e5aSMichal Kubecek !ethtool_get_max_rxfh_channel(dev, &max_rx_in_use) && 18059ce48e5aSMichal Kubecek (channels.combined_count + channels.rx_count) <= max_rx_in_use) 18069ce48e5aSMichal Kubecek return -EINVAL; 18079ce48e5aSMichal Kubecek 18089ce48e5aSMichal Kubecek /* Disabling channels, query zero-copy AF_XDP sockets */ 18099ce48e5aSMichal Kubecek from_channel = channels.combined_count + 18109ce48e5aSMichal Kubecek min(channels.rx_count, channels.tx_count); 18119ce48e5aSMichal Kubecek to_channel = curr.combined_count + max(curr.rx_count, curr.tx_count); 18129ce48e5aSMichal Kubecek for (i = from_channel; i < to_channel; i++) 1813c4655761SMagnus Karlsson if (xsk_get_pool_from_qid(dev, i)) 18149ce48e5aSMichal Kubecek return -EINVAL; 18159ce48e5aSMichal Kubecek 1816546379b9SMichal Kubecek ret = dev->ethtool_ops->set_channels(dev, &channels); 1817546379b9SMichal Kubecek if (!ret) 1818546379b9SMichal Kubecek ethtool_notify(dev, ETHTOOL_MSG_CHANNELS_NTF, NULL); 1819546379b9SMichal Kubecek return ret; 18209ce48e5aSMichal Kubecek } 18219ce48e5aSMichal Kubecek 18229ce48e5aSMichal Kubecek static int ethtool_get_pauseparam(struct net_device *dev, void __user *useraddr) 18239ce48e5aSMichal Kubecek { 18249ce48e5aSMichal Kubecek struct ethtool_pauseparam pauseparam = { .cmd = ETHTOOL_GPAUSEPARAM }; 18259ce48e5aSMichal Kubecek 18269ce48e5aSMichal Kubecek if (!dev->ethtool_ops->get_pauseparam) 18279ce48e5aSMichal Kubecek return -EOPNOTSUPP; 18289ce48e5aSMichal Kubecek 18299ce48e5aSMichal Kubecek dev->ethtool_ops->get_pauseparam(dev, &pauseparam); 18309ce48e5aSMichal Kubecek 18319ce48e5aSMichal Kubecek if (copy_to_user(useraddr, &pauseparam, sizeof(pauseparam))) 18329ce48e5aSMichal Kubecek return -EFAULT; 18339ce48e5aSMichal Kubecek return 0; 18349ce48e5aSMichal Kubecek } 18359ce48e5aSMichal Kubecek 18369ce48e5aSMichal Kubecek static int ethtool_set_pauseparam(struct net_device *dev, void __user *useraddr) 18379ce48e5aSMichal Kubecek { 18389ce48e5aSMichal Kubecek struct ethtool_pauseparam pauseparam; 1839bf37faa3SMichal Kubecek int ret; 18409ce48e5aSMichal Kubecek 18419ce48e5aSMichal Kubecek if (!dev->ethtool_ops->set_pauseparam) 18429ce48e5aSMichal Kubecek return -EOPNOTSUPP; 18439ce48e5aSMichal Kubecek 18449ce48e5aSMichal Kubecek if (copy_from_user(&pauseparam, useraddr, sizeof(pauseparam))) 18459ce48e5aSMichal Kubecek return -EFAULT; 18469ce48e5aSMichal Kubecek 1847bf37faa3SMichal Kubecek ret = dev->ethtool_ops->set_pauseparam(dev, &pauseparam); 1848bf37faa3SMichal Kubecek if (!ret) 1849bf37faa3SMichal Kubecek ethtool_notify(dev, ETHTOOL_MSG_PAUSE_NTF, NULL); 1850bf37faa3SMichal Kubecek return ret; 18519ce48e5aSMichal Kubecek } 18529ce48e5aSMichal Kubecek 18539ce48e5aSMichal Kubecek static int ethtool_self_test(struct net_device *dev, char __user *useraddr) 18549ce48e5aSMichal Kubecek { 18559ce48e5aSMichal Kubecek struct ethtool_test test; 18569ce48e5aSMichal Kubecek const struct ethtool_ops *ops = dev->ethtool_ops; 18579ce48e5aSMichal Kubecek u64 *data; 18589ce48e5aSMichal Kubecek int ret, test_len; 18599ce48e5aSMichal Kubecek 18609ce48e5aSMichal Kubecek if (!ops->self_test || !ops->get_sset_count) 18619ce48e5aSMichal Kubecek return -EOPNOTSUPP; 18629ce48e5aSMichal Kubecek 18639ce48e5aSMichal Kubecek test_len = ops->get_sset_count(dev, ETH_SS_TEST); 18649ce48e5aSMichal Kubecek if (test_len < 0) 18659ce48e5aSMichal Kubecek return test_len; 18669ce48e5aSMichal Kubecek WARN_ON(test_len == 0); 18679ce48e5aSMichal Kubecek 18689ce48e5aSMichal Kubecek if (copy_from_user(&test, useraddr, sizeof(test))) 18699ce48e5aSMichal Kubecek return -EFAULT; 18709ce48e5aSMichal Kubecek 18719ce48e5aSMichal Kubecek test.len = test_len; 187280ec82e3SAustin Kim data = kcalloc(test_len, sizeof(u64), GFP_USER); 18739ce48e5aSMichal Kubecek if (!data) 18749ce48e5aSMichal Kubecek return -ENOMEM; 18759ce48e5aSMichal Kubecek 187677e9b2abSAndrew Lunn netif_testing_on(dev); 18779ce48e5aSMichal Kubecek ops->self_test(dev, &test, data); 187877e9b2abSAndrew Lunn netif_testing_off(dev); 18799ce48e5aSMichal Kubecek 18809ce48e5aSMichal Kubecek ret = -EFAULT; 18819ce48e5aSMichal Kubecek if (copy_to_user(useraddr, &test, sizeof(test))) 18829ce48e5aSMichal Kubecek goto out; 18839ce48e5aSMichal Kubecek useraddr += sizeof(test); 18849ce48e5aSMichal Kubecek if (copy_to_user(useraddr, data, test.len * sizeof(u64))) 18859ce48e5aSMichal Kubecek goto out; 18869ce48e5aSMichal Kubecek ret = 0; 18879ce48e5aSMichal Kubecek 18889ce48e5aSMichal Kubecek out: 18899ce48e5aSMichal Kubecek kfree(data); 18909ce48e5aSMichal Kubecek return ret; 18919ce48e5aSMichal Kubecek } 18929ce48e5aSMichal Kubecek 18939ce48e5aSMichal Kubecek static int ethtool_get_strings(struct net_device *dev, void __user *useraddr) 18949ce48e5aSMichal Kubecek { 18959ce48e5aSMichal Kubecek struct ethtool_gstrings gstrings; 18969ce48e5aSMichal Kubecek u8 *data; 18979ce48e5aSMichal Kubecek int ret; 18989ce48e5aSMichal Kubecek 18999ce48e5aSMichal Kubecek if (copy_from_user(&gstrings, useraddr, sizeof(gstrings))) 19009ce48e5aSMichal Kubecek return -EFAULT; 19019ce48e5aSMichal Kubecek 19029ce48e5aSMichal Kubecek ret = __ethtool_get_sset_count(dev, gstrings.string_set); 19039ce48e5aSMichal Kubecek if (ret < 0) 19049ce48e5aSMichal Kubecek return ret; 19059ce48e5aSMichal Kubecek if (ret > S32_MAX / ETH_GSTRING_LEN) 19069ce48e5aSMichal Kubecek return -ENOMEM; 19079ce48e5aSMichal Kubecek WARN_ON_ONCE(!ret); 19089ce48e5aSMichal Kubecek 19099ce48e5aSMichal Kubecek gstrings.len = ret; 19109ce48e5aSMichal Kubecek 19119ce48e5aSMichal Kubecek if (gstrings.len) { 19129ce48e5aSMichal Kubecek data = vzalloc(array_size(gstrings.len, ETH_GSTRING_LEN)); 19139ce48e5aSMichal Kubecek if (!data) 19149ce48e5aSMichal Kubecek return -ENOMEM; 19159ce48e5aSMichal Kubecek 19169ce48e5aSMichal Kubecek __ethtool_get_strings(dev, gstrings.string_set, data); 19179ce48e5aSMichal Kubecek } else { 19189ce48e5aSMichal Kubecek data = NULL; 19199ce48e5aSMichal Kubecek } 19209ce48e5aSMichal Kubecek 19219ce48e5aSMichal Kubecek ret = -EFAULT; 19229ce48e5aSMichal Kubecek if (copy_to_user(useraddr, &gstrings, sizeof(gstrings))) 19239ce48e5aSMichal Kubecek goto out; 19249ce48e5aSMichal Kubecek useraddr += sizeof(gstrings); 19259ce48e5aSMichal Kubecek if (gstrings.len && 19269ce48e5aSMichal Kubecek copy_to_user(useraddr, data, gstrings.len * ETH_GSTRING_LEN)) 19279ce48e5aSMichal Kubecek goto out; 19289ce48e5aSMichal Kubecek ret = 0; 19299ce48e5aSMichal Kubecek 19309ce48e5aSMichal Kubecek out: 19319ce48e5aSMichal Kubecek vfree(data); 19329ce48e5aSMichal Kubecek return ret; 19339ce48e5aSMichal Kubecek } 19349ce48e5aSMichal Kubecek 19357888fe53SAlexander Duyck __printf(2, 3) void ethtool_sprintf(u8 **data, const char *fmt, ...) 19367888fe53SAlexander Duyck { 19377888fe53SAlexander Duyck va_list args; 19387888fe53SAlexander Duyck 19397888fe53SAlexander Duyck va_start(args, fmt); 19407888fe53SAlexander Duyck vsnprintf(*data, ETH_GSTRING_LEN, fmt, args); 19417888fe53SAlexander Duyck va_end(args); 19427888fe53SAlexander Duyck 19437888fe53SAlexander Duyck *data += ETH_GSTRING_LEN; 19447888fe53SAlexander Duyck } 19457888fe53SAlexander Duyck EXPORT_SYMBOL(ethtool_sprintf); 19467888fe53SAlexander Duyck 19479ce48e5aSMichal Kubecek static int ethtool_phys_id(struct net_device *dev, void __user *useraddr) 19489ce48e5aSMichal Kubecek { 19499ce48e5aSMichal Kubecek struct ethtool_value id; 19509ce48e5aSMichal Kubecek static bool busy; 19519ce48e5aSMichal Kubecek const struct ethtool_ops *ops = dev->ethtool_ops; 19529ce48e5aSMichal Kubecek int rc; 19539ce48e5aSMichal Kubecek 19549ce48e5aSMichal Kubecek if (!ops->set_phys_id) 19559ce48e5aSMichal Kubecek return -EOPNOTSUPP; 19569ce48e5aSMichal Kubecek 19579ce48e5aSMichal Kubecek if (busy) 19589ce48e5aSMichal Kubecek return -EBUSY; 19599ce48e5aSMichal Kubecek 19609ce48e5aSMichal Kubecek if (copy_from_user(&id, useraddr, sizeof(id))) 19619ce48e5aSMichal Kubecek return -EFAULT; 19629ce48e5aSMichal Kubecek 19639ce48e5aSMichal Kubecek rc = ops->set_phys_id(dev, ETHTOOL_ID_ACTIVE); 19649ce48e5aSMichal Kubecek if (rc < 0) 19659ce48e5aSMichal Kubecek return rc; 19669ce48e5aSMichal Kubecek 19679ce48e5aSMichal Kubecek /* Drop the RTNL lock while waiting, but prevent reentry or 19689ce48e5aSMichal Kubecek * removal of the device. 19699ce48e5aSMichal Kubecek */ 19709ce48e5aSMichal Kubecek busy = true; 19719ce48e5aSMichal Kubecek dev_hold(dev); 19729ce48e5aSMichal Kubecek rtnl_unlock(); 19739ce48e5aSMichal Kubecek 19749ce48e5aSMichal Kubecek if (rc == 0) { 19759ce48e5aSMichal Kubecek /* Driver will handle this itself */ 19769ce48e5aSMichal Kubecek schedule_timeout_interruptible( 19779ce48e5aSMichal Kubecek id.data ? (id.data * HZ) : MAX_SCHEDULE_TIMEOUT); 19789ce48e5aSMichal Kubecek } else { 19799ce48e5aSMichal Kubecek /* Driver expects to be called at twice the frequency in rc */ 19802adc6edcSEdward Cree int n = rc * 2, interval = HZ / n; 19812adc6edcSEdward Cree u64 count = n * id.data, i = 0; 19829ce48e5aSMichal Kubecek 19839ce48e5aSMichal Kubecek do { 19849ce48e5aSMichal Kubecek rtnl_lock(); 19859ce48e5aSMichal Kubecek rc = ops->set_phys_id(dev, 19862adc6edcSEdward Cree (i++ & 1) ? ETHTOOL_ID_OFF : ETHTOOL_ID_ON); 19879ce48e5aSMichal Kubecek rtnl_unlock(); 19889ce48e5aSMichal Kubecek if (rc) 19899ce48e5aSMichal Kubecek break; 19909ce48e5aSMichal Kubecek schedule_timeout_interruptible(interval); 19912adc6edcSEdward Cree } while (!signal_pending(current) && (!id.data || i < count)); 19929ce48e5aSMichal Kubecek } 19939ce48e5aSMichal Kubecek 19949ce48e5aSMichal Kubecek rtnl_lock(); 19959ce48e5aSMichal Kubecek dev_put(dev); 19969ce48e5aSMichal Kubecek busy = false; 19979ce48e5aSMichal Kubecek 19989ce48e5aSMichal Kubecek (void) ops->set_phys_id(dev, ETHTOOL_ID_INACTIVE); 19999ce48e5aSMichal Kubecek return rc; 20009ce48e5aSMichal Kubecek } 20019ce48e5aSMichal Kubecek 20029ce48e5aSMichal Kubecek static int ethtool_get_stats(struct net_device *dev, void __user *useraddr) 20039ce48e5aSMichal Kubecek { 20049ce48e5aSMichal Kubecek struct ethtool_stats stats; 20059ce48e5aSMichal Kubecek const struct ethtool_ops *ops = dev->ethtool_ops; 20069ce48e5aSMichal Kubecek u64 *data; 20079ce48e5aSMichal Kubecek int ret, n_stats; 20089ce48e5aSMichal Kubecek 20099ce48e5aSMichal Kubecek if (!ops->get_ethtool_stats || !ops->get_sset_count) 20109ce48e5aSMichal Kubecek return -EOPNOTSUPP; 20119ce48e5aSMichal Kubecek 20129ce48e5aSMichal Kubecek n_stats = ops->get_sset_count(dev, ETH_SS_STATS); 20139ce48e5aSMichal Kubecek if (n_stats < 0) 20149ce48e5aSMichal Kubecek return n_stats; 20159ce48e5aSMichal Kubecek if (n_stats > S32_MAX / sizeof(u64)) 20169ce48e5aSMichal Kubecek return -ENOMEM; 20179ce48e5aSMichal Kubecek WARN_ON_ONCE(!n_stats); 20189ce48e5aSMichal Kubecek if (copy_from_user(&stats, useraddr, sizeof(stats))) 20199ce48e5aSMichal Kubecek return -EFAULT; 20209ce48e5aSMichal Kubecek 20219ce48e5aSMichal Kubecek stats.n_stats = n_stats; 20229ce48e5aSMichal Kubecek 20239ce48e5aSMichal Kubecek if (n_stats) { 20249ce48e5aSMichal Kubecek data = vzalloc(array_size(n_stats, sizeof(u64))); 20259ce48e5aSMichal Kubecek if (!data) 20269ce48e5aSMichal Kubecek return -ENOMEM; 20279ce48e5aSMichal Kubecek ops->get_ethtool_stats(dev, &stats, data); 20289ce48e5aSMichal Kubecek } else { 20299ce48e5aSMichal Kubecek data = NULL; 20309ce48e5aSMichal Kubecek } 20319ce48e5aSMichal Kubecek 20329ce48e5aSMichal Kubecek ret = -EFAULT; 20339ce48e5aSMichal Kubecek if (copy_to_user(useraddr, &stats, sizeof(stats))) 20349ce48e5aSMichal Kubecek goto out; 20359ce48e5aSMichal Kubecek useraddr += sizeof(stats); 20363dd14996SGustavo A. R. Silva if (n_stats && copy_to_user(useraddr, data, array_size(n_stats, sizeof(u64)))) 20379ce48e5aSMichal Kubecek goto out; 20389ce48e5aSMichal Kubecek ret = 0; 20399ce48e5aSMichal Kubecek 20409ce48e5aSMichal Kubecek out: 20419ce48e5aSMichal Kubecek vfree(data); 20429ce48e5aSMichal Kubecek return ret; 20439ce48e5aSMichal Kubecek } 20449ce48e5aSMichal Kubecek 20459ce48e5aSMichal Kubecek static int ethtool_get_phy_stats(struct net_device *dev, void __user *useraddr) 20469ce48e5aSMichal Kubecek { 204717809516SFlorian Fainelli const struct ethtool_phy_ops *phy_ops = ethtool_phy_ops; 20489ce48e5aSMichal Kubecek const struct ethtool_ops *ops = dev->ethtool_ops; 20499ce48e5aSMichal Kubecek struct phy_device *phydev = dev->phydev; 20509ce48e5aSMichal Kubecek struct ethtool_stats stats; 20519ce48e5aSMichal Kubecek u64 *data; 20529ce48e5aSMichal Kubecek int ret, n_stats; 20539ce48e5aSMichal Kubecek 20549ce48e5aSMichal Kubecek if (!phydev && (!ops->get_ethtool_phy_stats || !ops->get_sset_count)) 20559ce48e5aSMichal Kubecek return -EOPNOTSUPP; 20569ce48e5aSMichal Kubecek 205717809516SFlorian Fainelli if (dev->phydev && !ops->get_ethtool_phy_stats && 205817809516SFlorian Fainelli phy_ops && phy_ops->get_sset_count) 205917809516SFlorian Fainelli n_stats = phy_ops->get_sset_count(dev->phydev); 20609ce48e5aSMichal Kubecek else 20619ce48e5aSMichal Kubecek n_stats = ops->get_sset_count(dev, ETH_SS_PHY_STATS); 20629ce48e5aSMichal Kubecek if (n_stats < 0) 20639ce48e5aSMichal Kubecek return n_stats; 20649ce48e5aSMichal Kubecek if (n_stats > S32_MAX / sizeof(u64)) 20659ce48e5aSMichal Kubecek return -ENOMEM; 20669ce48e5aSMichal Kubecek WARN_ON_ONCE(!n_stats); 20679ce48e5aSMichal Kubecek 20689ce48e5aSMichal Kubecek if (copy_from_user(&stats, useraddr, sizeof(stats))) 20699ce48e5aSMichal Kubecek return -EFAULT; 20709ce48e5aSMichal Kubecek 20719ce48e5aSMichal Kubecek stats.n_stats = n_stats; 20729ce48e5aSMichal Kubecek 20739ce48e5aSMichal Kubecek if (n_stats) { 20749ce48e5aSMichal Kubecek data = vzalloc(array_size(n_stats, sizeof(u64))); 20759ce48e5aSMichal Kubecek if (!data) 20769ce48e5aSMichal Kubecek return -ENOMEM; 20779ce48e5aSMichal Kubecek 207817809516SFlorian Fainelli if (dev->phydev && !ops->get_ethtool_phy_stats && 207917809516SFlorian Fainelli phy_ops && phy_ops->get_stats) { 208017809516SFlorian Fainelli ret = phy_ops->get_stats(dev->phydev, &stats, data); 20819ce48e5aSMichal Kubecek if (ret < 0) 20829ce48e5aSMichal Kubecek goto out; 20839ce48e5aSMichal Kubecek } else { 20849ce48e5aSMichal Kubecek ops->get_ethtool_phy_stats(dev, &stats, data); 20859ce48e5aSMichal Kubecek } 20869ce48e5aSMichal Kubecek } else { 20879ce48e5aSMichal Kubecek data = NULL; 20889ce48e5aSMichal Kubecek } 20899ce48e5aSMichal Kubecek 20909ce48e5aSMichal Kubecek ret = -EFAULT; 20919ce48e5aSMichal Kubecek if (copy_to_user(useraddr, &stats, sizeof(stats))) 20929ce48e5aSMichal Kubecek goto out; 20939ce48e5aSMichal Kubecek useraddr += sizeof(stats); 20943dd14996SGustavo A. R. Silva if (n_stats && copy_to_user(useraddr, data, array_size(n_stats, sizeof(u64)))) 20959ce48e5aSMichal Kubecek goto out; 20969ce48e5aSMichal Kubecek ret = 0; 20979ce48e5aSMichal Kubecek 20989ce48e5aSMichal Kubecek out: 20999ce48e5aSMichal Kubecek vfree(data); 21009ce48e5aSMichal Kubecek return ret; 21019ce48e5aSMichal Kubecek } 21029ce48e5aSMichal Kubecek 21039ce48e5aSMichal Kubecek static int ethtool_get_perm_addr(struct net_device *dev, void __user *useraddr) 21049ce48e5aSMichal Kubecek { 21059ce48e5aSMichal Kubecek struct ethtool_perm_addr epaddr; 21069ce48e5aSMichal Kubecek 21079ce48e5aSMichal Kubecek if (copy_from_user(&epaddr, useraddr, sizeof(epaddr))) 21089ce48e5aSMichal Kubecek return -EFAULT; 21099ce48e5aSMichal Kubecek 21109ce48e5aSMichal Kubecek if (epaddr.size < dev->addr_len) 21119ce48e5aSMichal Kubecek return -ETOOSMALL; 21129ce48e5aSMichal Kubecek epaddr.size = dev->addr_len; 21139ce48e5aSMichal Kubecek 21149ce48e5aSMichal Kubecek if (copy_to_user(useraddr, &epaddr, sizeof(epaddr))) 21159ce48e5aSMichal Kubecek return -EFAULT; 21169ce48e5aSMichal Kubecek useraddr += sizeof(epaddr); 21179ce48e5aSMichal Kubecek if (copy_to_user(useraddr, dev->perm_addr, epaddr.size)) 21189ce48e5aSMichal Kubecek return -EFAULT; 21199ce48e5aSMichal Kubecek return 0; 21209ce48e5aSMichal Kubecek } 21219ce48e5aSMichal Kubecek 21229ce48e5aSMichal Kubecek static int ethtool_get_value(struct net_device *dev, char __user *useraddr, 21239ce48e5aSMichal Kubecek u32 cmd, u32 (*actor)(struct net_device *)) 21249ce48e5aSMichal Kubecek { 21259ce48e5aSMichal Kubecek struct ethtool_value edata = { .cmd = cmd }; 21269ce48e5aSMichal Kubecek 21279ce48e5aSMichal Kubecek if (!actor) 21289ce48e5aSMichal Kubecek return -EOPNOTSUPP; 21299ce48e5aSMichal Kubecek 21309ce48e5aSMichal Kubecek edata.data = actor(dev); 21319ce48e5aSMichal Kubecek 21329ce48e5aSMichal Kubecek if (copy_to_user(useraddr, &edata, sizeof(edata))) 21339ce48e5aSMichal Kubecek return -EFAULT; 21349ce48e5aSMichal Kubecek return 0; 21359ce48e5aSMichal Kubecek } 21369ce48e5aSMichal Kubecek 21379ce48e5aSMichal Kubecek static int ethtool_set_value_void(struct net_device *dev, char __user *useraddr, 21389ce48e5aSMichal Kubecek void (*actor)(struct net_device *, u32)) 21399ce48e5aSMichal Kubecek { 21409ce48e5aSMichal Kubecek struct ethtool_value edata; 21419ce48e5aSMichal Kubecek 21429ce48e5aSMichal Kubecek if (!actor) 21439ce48e5aSMichal Kubecek return -EOPNOTSUPP; 21449ce48e5aSMichal Kubecek 21459ce48e5aSMichal Kubecek if (copy_from_user(&edata, useraddr, sizeof(edata))) 21469ce48e5aSMichal Kubecek return -EFAULT; 21479ce48e5aSMichal Kubecek 21489ce48e5aSMichal Kubecek actor(dev, edata.data); 21499ce48e5aSMichal Kubecek return 0; 21509ce48e5aSMichal Kubecek } 21519ce48e5aSMichal Kubecek 21529ce48e5aSMichal Kubecek static int ethtool_set_value(struct net_device *dev, char __user *useraddr, 21539ce48e5aSMichal Kubecek int (*actor)(struct net_device *, u32)) 21549ce48e5aSMichal Kubecek { 21559ce48e5aSMichal Kubecek struct ethtool_value edata; 21569ce48e5aSMichal Kubecek 21579ce48e5aSMichal Kubecek if (!actor) 21589ce48e5aSMichal Kubecek return -EOPNOTSUPP; 21599ce48e5aSMichal Kubecek 21609ce48e5aSMichal Kubecek if (copy_from_user(&edata, useraddr, sizeof(edata))) 21619ce48e5aSMichal Kubecek return -EFAULT; 21629ce48e5aSMichal Kubecek 21639ce48e5aSMichal Kubecek return actor(dev, edata.data); 21649ce48e5aSMichal Kubecek } 21659ce48e5aSMichal Kubecek 21669ce48e5aSMichal Kubecek static noinline_for_stack int ethtool_flash_device(struct net_device *dev, 21679ce48e5aSMichal Kubecek char __user *useraddr) 21689ce48e5aSMichal Kubecek { 21699ce48e5aSMichal Kubecek struct ethtool_flash efl; 21709ce48e5aSMichal Kubecek 21719ce48e5aSMichal Kubecek if (copy_from_user(&efl, useraddr, sizeof(efl))) 21729ce48e5aSMichal Kubecek return -EFAULT; 21739ce48e5aSMichal Kubecek efl.data[ETHTOOL_FLASH_MAX_FILENAME - 1] = 0; 21749ce48e5aSMichal Kubecek 21759ce48e5aSMichal Kubecek if (!dev->ethtool_ops->flash_device) 21769ce48e5aSMichal Kubecek return devlink_compat_flash_update(dev, efl.data); 21779ce48e5aSMichal Kubecek 21789ce48e5aSMichal Kubecek return dev->ethtool_ops->flash_device(dev, &efl); 21799ce48e5aSMichal Kubecek } 21809ce48e5aSMichal Kubecek 21819ce48e5aSMichal Kubecek static int ethtool_set_dump(struct net_device *dev, 21829ce48e5aSMichal Kubecek void __user *useraddr) 21839ce48e5aSMichal Kubecek { 21849ce48e5aSMichal Kubecek struct ethtool_dump dump; 21859ce48e5aSMichal Kubecek 21869ce48e5aSMichal Kubecek if (!dev->ethtool_ops->set_dump) 21879ce48e5aSMichal Kubecek return -EOPNOTSUPP; 21889ce48e5aSMichal Kubecek 21899ce48e5aSMichal Kubecek if (copy_from_user(&dump, useraddr, sizeof(dump))) 21909ce48e5aSMichal Kubecek return -EFAULT; 21919ce48e5aSMichal Kubecek 21929ce48e5aSMichal Kubecek return dev->ethtool_ops->set_dump(dev, &dump); 21939ce48e5aSMichal Kubecek } 21949ce48e5aSMichal Kubecek 21959ce48e5aSMichal Kubecek static int ethtool_get_dump_flag(struct net_device *dev, 21969ce48e5aSMichal Kubecek void __user *useraddr) 21979ce48e5aSMichal Kubecek { 21989ce48e5aSMichal Kubecek int ret; 21999ce48e5aSMichal Kubecek struct ethtool_dump dump; 22009ce48e5aSMichal Kubecek const struct ethtool_ops *ops = dev->ethtool_ops; 22019ce48e5aSMichal Kubecek 22029ce48e5aSMichal Kubecek if (!ops->get_dump_flag) 22039ce48e5aSMichal Kubecek return -EOPNOTSUPP; 22049ce48e5aSMichal Kubecek 22059ce48e5aSMichal Kubecek if (copy_from_user(&dump, useraddr, sizeof(dump))) 22069ce48e5aSMichal Kubecek return -EFAULT; 22079ce48e5aSMichal Kubecek 22089ce48e5aSMichal Kubecek ret = ops->get_dump_flag(dev, &dump); 22099ce48e5aSMichal Kubecek if (ret) 22109ce48e5aSMichal Kubecek return ret; 22119ce48e5aSMichal Kubecek 22129ce48e5aSMichal Kubecek if (copy_to_user(useraddr, &dump, sizeof(dump))) 22139ce48e5aSMichal Kubecek return -EFAULT; 22149ce48e5aSMichal Kubecek return 0; 22159ce48e5aSMichal Kubecek } 22169ce48e5aSMichal Kubecek 22179ce48e5aSMichal Kubecek static int ethtool_get_dump_data(struct net_device *dev, 22189ce48e5aSMichal Kubecek void __user *useraddr) 22199ce48e5aSMichal Kubecek { 22209ce48e5aSMichal Kubecek int ret; 22219ce48e5aSMichal Kubecek __u32 len; 22229ce48e5aSMichal Kubecek struct ethtool_dump dump, tmp; 22239ce48e5aSMichal Kubecek const struct ethtool_ops *ops = dev->ethtool_ops; 22249ce48e5aSMichal Kubecek void *data = NULL; 22259ce48e5aSMichal Kubecek 22269ce48e5aSMichal Kubecek if (!ops->get_dump_data || !ops->get_dump_flag) 22279ce48e5aSMichal Kubecek return -EOPNOTSUPP; 22289ce48e5aSMichal Kubecek 22299ce48e5aSMichal Kubecek if (copy_from_user(&dump, useraddr, sizeof(dump))) 22309ce48e5aSMichal Kubecek return -EFAULT; 22319ce48e5aSMichal Kubecek 22329ce48e5aSMichal Kubecek memset(&tmp, 0, sizeof(tmp)); 22339ce48e5aSMichal Kubecek tmp.cmd = ETHTOOL_GET_DUMP_FLAG; 22349ce48e5aSMichal Kubecek ret = ops->get_dump_flag(dev, &tmp); 22359ce48e5aSMichal Kubecek if (ret) 22369ce48e5aSMichal Kubecek return ret; 22379ce48e5aSMichal Kubecek 22389ce48e5aSMichal Kubecek len = min(tmp.len, dump.len); 22399ce48e5aSMichal Kubecek if (!len) 22409ce48e5aSMichal Kubecek return -EFAULT; 22419ce48e5aSMichal Kubecek 22429ce48e5aSMichal Kubecek /* Don't ever let the driver think there's more space available 22439ce48e5aSMichal Kubecek * than it requested with .get_dump_flag(). 22449ce48e5aSMichal Kubecek */ 22459ce48e5aSMichal Kubecek dump.len = len; 22469ce48e5aSMichal Kubecek 22479ce48e5aSMichal Kubecek /* Always allocate enough space to hold the whole thing so that the 22489ce48e5aSMichal Kubecek * driver does not need to check the length and bother with partial 22499ce48e5aSMichal Kubecek * dumping. 22509ce48e5aSMichal Kubecek */ 22519ce48e5aSMichal Kubecek data = vzalloc(tmp.len); 22529ce48e5aSMichal Kubecek if (!data) 22539ce48e5aSMichal Kubecek return -ENOMEM; 22549ce48e5aSMichal Kubecek ret = ops->get_dump_data(dev, &dump, data); 22559ce48e5aSMichal Kubecek if (ret) 22569ce48e5aSMichal Kubecek goto out; 22579ce48e5aSMichal Kubecek 22589ce48e5aSMichal Kubecek /* There are two sane possibilities: 22599ce48e5aSMichal Kubecek * 1. The driver's .get_dump_data() does not touch dump.len. 22609ce48e5aSMichal Kubecek * 2. Or it may set dump.len to how much it really writes, which 22619ce48e5aSMichal Kubecek * should be tmp.len (or len if it can do a partial dump). 22629ce48e5aSMichal Kubecek * In any case respond to userspace with the actual length of data 22639ce48e5aSMichal Kubecek * it's receiving. 22649ce48e5aSMichal Kubecek */ 22659ce48e5aSMichal Kubecek WARN_ON(dump.len != len && dump.len != tmp.len); 22669ce48e5aSMichal Kubecek dump.len = len; 22679ce48e5aSMichal Kubecek 22689ce48e5aSMichal Kubecek if (copy_to_user(useraddr, &dump, sizeof(dump))) { 22699ce48e5aSMichal Kubecek ret = -EFAULT; 22709ce48e5aSMichal Kubecek goto out; 22719ce48e5aSMichal Kubecek } 22729ce48e5aSMichal Kubecek useraddr += offsetof(struct ethtool_dump, data); 22739ce48e5aSMichal Kubecek if (copy_to_user(useraddr, data, len)) 22749ce48e5aSMichal Kubecek ret = -EFAULT; 22759ce48e5aSMichal Kubecek out: 22769ce48e5aSMichal Kubecek vfree(data); 22779ce48e5aSMichal Kubecek return ret; 22789ce48e5aSMichal Kubecek } 22799ce48e5aSMichal Kubecek 22809ce48e5aSMichal Kubecek static int ethtool_get_ts_info(struct net_device *dev, void __user *useraddr) 22819ce48e5aSMichal Kubecek { 22829ce48e5aSMichal Kubecek struct ethtool_ts_info info; 22835b071c59SMichal Kubecek int err; 22849ce48e5aSMichal Kubecek 22855b071c59SMichal Kubecek err = __ethtool_get_ts_info(dev, &info); 22869ce48e5aSMichal Kubecek if (err) 22879ce48e5aSMichal Kubecek return err; 22889ce48e5aSMichal Kubecek 22899ce48e5aSMichal Kubecek if (copy_to_user(useraddr, &info, sizeof(info))) 22905b071c59SMichal Kubecek return -EFAULT; 22919ce48e5aSMichal Kubecek 22925b071c59SMichal Kubecek return 0; 22939ce48e5aSMichal Kubecek } 22949ce48e5aSMichal Kubecek 229595dfc7efSAndrew Lunn int ethtool_get_module_info_call(struct net_device *dev, 22969ce48e5aSMichal Kubecek struct ethtool_modinfo *modinfo) 22979ce48e5aSMichal Kubecek { 22989ce48e5aSMichal Kubecek const struct ethtool_ops *ops = dev->ethtool_ops; 22999ce48e5aSMichal Kubecek struct phy_device *phydev = dev->phydev; 23009ce48e5aSMichal Kubecek 23019ce48e5aSMichal Kubecek if (dev->sfp_bus) 23029ce48e5aSMichal Kubecek return sfp_get_module_info(dev->sfp_bus, modinfo); 23039ce48e5aSMichal Kubecek 23049ce48e5aSMichal Kubecek if (phydev && phydev->drv && phydev->drv->module_info) 23059ce48e5aSMichal Kubecek return phydev->drv->module_info(phydev, modinfo); 23069ce48e5aSMichal Kubecek 23079ce48e5aSMichal Kubecek if (ops->get_module_info) 23089ce48e5aSMichal Kubecek return ops->get_module_info(dev, modinfo); 23099ce48e5aSMichal Kubecek 23109ce48e5aSMichal Kubecek return -EOPNOTSUPP; 23119ce48e5aSMichal Kubecek } 23129ce48e5aSMichal Kubecek 23139ce48e5aSMichal Kubecek static int ethtool_get_module_info(struct net_device *dev, 23149ce48e5aSMichal Kubecek void __user *useraddr) 23159ce48e5aSMichal Kubecek { 23169ce48e5aSMichal Kubecek int ret; 23179ce48e5aSMichal Kubecek struct ethtool_modinfo modinfo; 23189ce48e5aSMichal Kubecek 23199ce48e5aSMichal Kubecek if (copy_from_user(&modinfo, useraddr, sizeof(modinfo))) 23209ce48e5aSMichal Kubecek return -EFAULT; 23219ce48e5aSMichal Kubecek 232295dfc7efSAndrew Lunn ret = ethtool_get_module_info_call(dev, &modinfo); 23239ce48e5aSMichal Kubecek if (ret) 23249ce48e5aSMichal Kubecek return ret; 23259ce48e5aSMichal Kubecek 23269ce48e5aSMichal Kubecek if (copy_to_user(useraddr, &modinfo, sizeof(modinfo))) 23279ce48e5aSMichal Kubecek return -EFAULT; 23289ce48e5aSMichal Kubecek 23299ce48e5aSMichal Kubecek return 0; 23309ce48e5aSMichal Kubecek } 23319ce48e5aSMichal Kubecek 233295dfc7efSAndrew Lunn int ethtool_get_module_eeprom_call(struct net_device *dev, 23339ce48e5aSMichal Kubecek struct ethtool_eeprom *ee, u8 *data) 23349ce48e5aSMichal Kubecek { 23359ce48e5aSMichal Kubecek const struct ethtool_ops *ops = dev->ethtool_ops; 23369ce48e5aSMichal Kubecek struct phy_device *phydev = dev->phydev; 23379ce48e5aSMichal Kubecek 23389ce48e5aSMichal Kubecek if (dev->sfp_bus) 23399ce48e5aSMichal Kubecek return sfp_get_module_eeprom(dev->sfp_bus, ee, data); 23409ce48e5aSMichal Kubecek 23419ce48e5aSMichal Kubecek if (phydev && phydev->drv && phydev->drv->module_eeprom) 23429ce48e5aSMichal Kubecek return phydev->drv->module_eeprom(phydev, ee, data); 23439ce48e5aSMichal Kubecek 23449ce48e5aSMichal Kubecek if (ops->get_module_eeprom) 23459ce48e5aSMichal Kubecek return ops->get_module_eeprom(dev, ee, data); 23469ce48e5aSMichal Kubecek 23479ce48e5aSMichal Kubecek return -EOPNOTSUPP; 23489ce48e5aSMichal Kubecek } 23499ce48e5aSMichal Kubecek 23509ce48e5aSMichal Kubecek static int ethtool_get_module_eeprom(struct net_device *dev, 23519ce48e5aSMichal Kubecek void __user *useraddr) 23529ce48e5aSMichal Kubecek { 23539ce48e5aSMichal Kubecek int ret; 23549ce48e5aSMichal Kubecek struct ethtool_modinfo modinfo; 23559ce48e5aSMichal Kubecek 235695dfc7efSAndrew Lunn ret = ethtool_get_module_info_call(dev, &modinfo); 23579ce48e5aSMichal Kubecek if (ret) 23589ce48e5aSMichal Kubecek return ret; 23599ce48e5aSMichal Kubecek 23609ce48e5aSMichal Kubecek return ethtool_get_any_eeprom(dev, useraddr, 236195dfc7efSAndrew Lunn ethtool_get_module_eeprom_call, 23629ce48e5aSMichal Kubecek modinfo.eeprom_len); 23639ce48e5aSMichal Kubecek } 23649ce48e5aSMichal Kubecek 23659ce48e5aSMichal Kubecek static int ethtool_tunable_valid(const struct ethtool_tunable *tuna) 23669ce48e5aSMichal Kubecek { 23679ce48e5aSMichal Kubecek switch (tuna->id) { 23689ce48e5aSMichal Kubecek case ETHTOOL_RX_COPYBREAK: 23699ce48e5aSMichal Kubecek case ETHTOOL_TX_COPYBREAK: 23709ce48e5aSMichal Kubecek if (tuna->len != sizeof(u32) || 23719ce48e5aSMichal Kubecek tuna->type_id != ETHTOOL_TUNABLE_U32) 23729ce48e5aSMichal Kubecek return -EINVAL; 23739ce48e5aSMichal Kubecek break; 23749ce48e5aSMichal Kubecek case ETHTOOL_PFC_PREVENTION_TOUT: 23759ce48e5aSMichal Kubecek if (tuna->len != sizeof(u16) || 23769ce48e5aSMichal Kubecek tuna->type_id != ETHTOOL_TUNABLE_U16) 23779ce48e5aSMichal Kubecek return -EINVAL; 23789ce48e5aSMichal Kubecek break; 23799ce48e5aSMichal Kubecek default: 23809ce48e5aSMichal Kubecek return -EINVAL; 23819ce48e5aSMichal Kubecek } 23829ce48e5aSMichal Kubecek 23839ce48e5aSMichal Kubecek return 0; 23849ce48e5aSMichal Kubecek } 23859ce48e5aSMichal Kubecek 23869ce48e5aSMichal Kubecek static int ethtool_get_tunable(struct net_device *dev, void __user *useraddr) 23879ce48e5aSMichal Kubecek { 23889ce48e5aSMichal Kubecek int ret; 23899ce48e5aSMichal Kubecek struct ethtool_tunable tuna; 23909ce48e5aSMichal Kubecek const struct ethtool_ops *ops = dev->ethtool_ops; 23919ce48e5aSMichal Kubecek void *data; 23929ce48e5aSMichal Kubecek 23939ce48e5aSMichal Kubecek if (!ops->get_tunable) 23949ce48e5aSMichal Kubecek return -EOPNOTSUPP; 23959ce48e5aSMichal Kubecek if (copy_from_user(&tuna, useraddr, sizeof(tuna))) 23969ce48e5aSMichal Kubecek return -EFAULT; 23979ce48e5aSMichal Kubecek ret = ethtool_tunable_valid(&tuna); 23989ce48e5aSMichal Kubecek if (ret) 23999ce48e5aSMichal Kubecek return ret; 240080ec82e3SAustin Kim data = kzalloc(tuna.len, GFP_USER); 24019ce48e5aSMichal Kubecek if (!data) 24029ce48e5aSMichal Kubecek return -ENOMEM; 24039ce48e5aSMichal Kubecek ret = ops->get_tunable(dev, &tuna, data); 24049ce48e5aSMichal Kubecek if (ret) 24059ce48e5aSMichal Kubecek goto out; 24069ce48e5aSMichal Kubecek useraddr += sizeof(tuna); 24079ce48e5aSMichal Kubecek ret = -EFAULT; 24089ce48e5aSMichal Kubecek if (copy_to_user(useraddr, data, tuna.len)) 24099ce48e5aSMichal Kubecek goto out; 24109ce48e5aSMichal Kubecek ret = 0; 24119ce48e5aSMichal Kubecek 24129ce48e5aSMichal Kubecek out: 24139ce48e5aSMichal Kubecek kfree(data); 24149ce48e5aSMichal Kubecek return ret; 24159ce48e5aSMichal Kubecek } 24169ce48e5aSMichal Kubecek 24179ce48e5aSMichal Kubecek static int ethtool_set_tunable(struct net_device *dev, void __user *useraddr) 24189ce48e5aSMichal Kubecek { 24199ce48e5aSMichal Kubecek int ret; 24209ce48e5aSMichal Kubecek struct ethtool_tunable tuna; 24219ce48e5aSMichal Kubecek const struct ethtool_ops *ops = dev->ethtool_ops; 24229ce48e5aSMichal Kubecek void *data; 24239ce48e5aSMichal Kubecek 24249ce48e5aSMichal Kubecek if (!ops->set_tunable) 24259ce48e5aSMichal Kubecek return -EOPNOTSUPP; 24269ce48e5aSMichal Kubecek if (copy_from_user(&tuna, useraddr, sizeof(tuna))) 24279ce48e5aSMichal Kubecek return -EFAULT; 24289ce48e5aSMichal Kubecek ret = ethtool_tunable_valid(&tuna); 24299ce48e5aSMichal Kubecek if (ret) 24309ce48e5aSMichal Kubecek return ret; 24319ce48e5aSMichal Kubecek useraddr += sizeof(tuna); 24329ce48e5aSMichal Kubecek data = memdup_user(useraddr, tuna.len); 24339ce48e5aSMichal Kubecek if (IS_ERR(data)) 24349ce48e5aSMichal Kubecek return PTR_ERR(data); 24359ce48e5aSMichal Kubecek ret = ops->set_tunable(dev, &tuna, data); 24369ce48e5aSMichal Kubecek 24379ce48e5aSMichal Kubecek kfree(data); 24389ce48e5aSMichal Kubecek return ret; 24399ce48e5aSMichal Kubecek } 24409ce48e5aSMichal Kubecek 24419ce48e5aSMichal Kubecek static noinline_for_stack int 24429ce48e5aSMichal Kubecek ethtool_get_per_queue_coalesce(struct net_device *dev, 24439ce48e5aSMichal Kubecek void __user *useraddr, 24449ce48e5aSMichal Kubecek struct ethtool_per_queue_op *per_queue_opt) 24459ce48e5aSMichal Kubecek { 24469ce48e5aSMichal Kubecek u32 bit; 24479ce48e5aSMichal Kubecek int ret; 24489ce48e5aSMichal Kubecek DECLARE_BITMAP(queue_mask, MAX_NUM_QUEUE); 24499ce48e5aSMichal Kubecek 24509ce48e5aSMichal Kubecek if (!dev->ethtool_ops->get_per_queue_coalesce) 24519ce48e5aSMichal Kubecek return -EOPNOTSUPP; 24529ce48e5aSMichal Kubecek 24539ce48e5aSMichal Kubecek useraddr += sizeof(*per_queue_opt); 24549ce48e5aSMichal Kubecek 24559ce48e5aSMichal Kubecek bitmap_from_arr32(queue_mask, per_queue_opt->queue_mask, 24569ce48e5aSMichal Kubecek MAX_NUM_QUEUE); 24579ce48e5aSMichal Kubecek 24589ce48e5aSMichal Kubecek for_each_set_bit(bit, queue_mask, MAX_NUM_QUEUE) { 24599ce48e5aSMichal Kubecek struct ethtool_coalesce coalesce = { .cmd = ETHTOOL_GCOALESCE }; 24609ce48e5aSMichal Kubecek 24619ce48e5aSMichal Kubecek ret = dev->ethtool_ops->get_per_queue_coalesce(dev, bit, &coalesce); 24629ce48e5aSMichal Kubecek if (ret != 0) 24639ce48e5aSMichal Kubecek return ret; 24649ce48e5aSMichal Kubecek if (copy_to_user(useraddr, &coalesce, sizeof(coalesce))) 24659ce48e5aSMichal Kubecek return -EFAULT; 24669ce48e5aSMichal Kubecek useraddr += sizeof(coalesce); 24679ce48e5aSMichal Kubecek } 24689ce48e5aSMichal Kubecek 24699ce48e5aSMichal Kubecek return 0; 24709ce48e5aSMichal Kubecek } 24719ce48e5aSMichal Kubecek 24729ce48e5aSMichal Kubecek static noinline_for_stack int 24739ce48e5aSMichal Kubecek ethtool_set_per_queue_coalesce(struct net_device *dev, 24749ce48e5aSMichal Kubecek void __user *useraddr, 24759ce48e5aSMichal Kubecek struct ethtool_per_queue_op *per_queue_opt) 24769ce48e5aSMichal Kubecek { 24779ce48e5aSMichal Kubecek u32 bit; 24789ce48e5aSMichal Kubecek int i, ret = 0; 24799ce48e5aSMichal Kubecek int n_queue; 24809ce48e5aSMichal Kubecek struct ethtool_coalesce *backup = NULL, *tmp = NULL; 24819ce48e5aSMichal Kubecek DECLARE_BITMAP(queue_mask, MAX_NUM_QUEUE); 24829ce48e5aSMichal Kubecek 24839ce48e5aSMichal Kubecek if ((!dev->ethtool_ops->set_per_queue_coalesce) || 24849ce48e5aSMichal Kubecek (!dev->ethtool_ops->get_per_queue_coalesce)) 24859ce48e5aSMichal Kubecek return -EOPNOTSUPP; 24869ce48e5aSMichal Kubecek 24879ce48e5aSMichal Kubecek useraddr += sizeof(*per_queue_opt); 24889ce48e5aSMichal Kubecek 24899ce48e5aSMichal Kubecek bitmap_from_arr32(queue_mask, per_queue_opt->queue_mask, MAX_NUM_QUEUE); 24909ce48e5aSMichal Kubecek n_queue = bitmap_weight(queue_mask, MAX_NUM_QUEUE); 24919ce48e5aSMichal Kubecek tmp = backup = kmalloc_array(n_queue, sizeof(*backup), GFP_KERNEL); 24929ce48e5aSMichal Kubecek if (!backup) 24939ce48e5aSMichal Kubecek return -ENOMEM; 24949ce48e5aSMichal Kubecek 24959ce48e5aSMichal Kubecek for_each_set_bit(bit, queue_mask, MAX_NUM_QUEUE) { 24969ce48e5aSMichal Kubecek struct ethtool_coalesce coalesce; 24979ce48e5aSMichal Kubecek 24989ce48e5aSMichal Kubecek ret = dev->ethtool_ops->get_per_queue_coalesce(dev, bit, tmp); 24999ce48e5aSMichal Kubecek if (ret != 0) 25009ce48e5aSMichal Kubecek goto roll_back; 25019ce48e5aSMichal Kubecek 25029ce48e5aSMichal Kubecek tmp++; 25039ce48e5aSMichal Kubecek 25049ce48e5aSMichal Kubecek if (copy_from_user(&coalesce, useraddr, sizeof(coalesce))) { 25059ce48e5aSMichal Kubecek ret = -EFAULT; 25069ce48e5aSMichal Kubecek goto roll_back; 25079ce48e5aSMichal Kubecek } 25089ce48e5aSMichal Kubecek 250995cddcb5SJakub Kicinski if (!ethtool_set_coalesce_supported(dev, &coalesce)) { 251095cddcb5SJakub Kicinski ret = -EOPNOTSUPP; 251195cddcb5SJakub Kicinski goto roll_back; 251295cddcb5SJakub Kicinski } 251395cddcb5SJakub Kicinski 25149ce48e5aSMichal Kubecek ret = dev->ethtool_ops->set_per_queue_coalesce(dev, bit, &coalesce); 25159ce48e5aSMichal Kubecek if (ret != 0) 25169ce48e5aSMichal Kubecek goto roll_back; 25179ce48e5aSMichal Kubecek 25189ce48e5aSMichal Kubecek useraddr += sizeof(coalesce); 25199ce48e5aSMichal Kubecek } 25209ce48e5aSMichal Kubecek 25219ce48e5aSMichal Kubecek roll_back: 25229ce48e5aSMichal Kubecek if (ret != 0) { 25239ce48e5aSMichal Kubecek tmp = backup; 25249ce48e5aSMichal Kubecek for_each_set_bit(i, queue_mask, bit) { 25259ce48e5aSMichal Kubecek dev->ethtool_ops->set_per_queue_coalesce(dev, i, tmp); 25269ce48e5aSMichal Kubecek tmp++; 25279ce48e5aSMichal Kubecek } 25289ce48e5aSMichal Kubecek } 25299ce48e5aSMichal Kubecek kfree(backup); 25309ce48e5aSMichal Kubecek 25319ce48e5aSMichal Kubecek return ret; 25329ce48e5aSMichal Kubecek } 25339ce48e5aSMichal Kubecek 25349ce48e5aSMichal Kubecek static int noinline_for_stack ethtool_set_per_queue(struct net_device *dev, 25359ce48e5aSMichal Kubecek void __user *useraddr, u32 sub_cmd) 25369ce48e5aSMichal Kubecek { 25379ce48e5aSMichal Kubecek struct ethtool_per_queue_op per_queue_opt; 25389ce48e5aSMichal Kubecek 25399ce48e5aSMichal Kubecek if (copy_from_user(&per_queue_opt, useraddr, sizeof(per_queue_opt))) 25409ce48e5aSMichal Kubecek return -EFAULT; 25419ce48e5aSMichal Kubecek 25429ce48e5aSMichal Kubecek if (per_queue_opt.sub_command != sub_cmd) 25439ce48e5aSMichal Kubecek return -EINVAL; 25449ce48e5aSMichal Kubecek 25459ce48e5aSMichal Kubecek switch (per_queue_opt.sub_command) { 25469ce48e5aSMichal Kubecek case ETHTOOL_GCOALESCE: 25479ce48e5aSMichal Kubecek return ethtool_get_per_queue_coalesce(dev, useraddr, &per_queue_opt); 25489ce48e5aSMichal Kubecek case ETHTOOL_SCOALESCE: 25499ce48e5aSMichal Kubecek return ethtool_set_per_queue_coalesce(dev, useraddr, &per_queue_opt); 25509ce48e5aSMichal Kubecek default: 25519ce48e5aSMichal Kubecek return -EOPNOTSUPP; 25529d253c02STom Rix } 25539ce48e5aSMichal Kubecek } 25549ce48e5aSMichal Kubecek 25559ce48e5aSMichal Kubecek static int ethtool_phy_tunable_valid(const struct ethtool_tunable *tuna) 25569ce48e5aSMichal Kubecek { 25579ce48e5aSMichal Kubecek switch (tuna->id) { 25589ce48e5aSMichal Kubecek case ETHTOOL_PHY_DOWNSHIFT: 25599ce48e5aSMichal Kubecek case ETHTOOL_PHY_FAST_LINK_DOWN: 25609ce48e5aSMichal Kubecek if (tuna->len != sizeof(u8) || 25619ce48e5aSMichal Kubecek tuna->type_id != ETHTOOL_TUNABLE_U8) 25629ce48e5aSMichal Kubecek return -EINVAL; 25639ce48e5aSMichal Kubecek break; 25649ce48e5aSMichal Kubecek case ETHTOOL_PHY_EDPD: 25659ce48e5aSMichal Kubecek if (tuna->len != sizeof(u16) || 25669ce48e5aSMichal Kubecek tuna->type_id != ETHTOOL_TUNABLE_U16) 25679ce48e5aSMichal Kubecek return -EINVAL; 25689ce48e5aSMichal Kubecek break; 25699ce48e5aSMichal Kubecek default: 25709ce48e5aSMichal Kubecek return -EINVAL; 25719ce48e5aSMichal Kubecek } 25729ce48e5aSMichal Kubecek 25739ce48e5aSMichal Kubecek return 0; 25749ce48e5aSMichal Kubecek } 25759ce48e5aSMichal Kubecek 25769ce48e5aSMichal Kubecek static int get_phy_tunable(struct net_device *dev, void __user *useraddr) 25779ce48e5aSMichal Kubecek { 25789ce48e5aSMichal Kubecek struct phy_device *phydev = dev->phydev; 2579c6db31ffSIgor Russkikh struct ethtool_tunable tuna; 2580c6db31ffSIgor Russkikh bool phy_drv_tunable; 25819ce48e5aSMichal Kubecek void *data; 2582c6db31ffSIgor Russkikh int ret; 25839ce48e5aSMichal Kubecek 2584c6db31ffSIgor Russkikh phy_drv_tunable = phydev && phydev->drv && phydev->drv->get_tunable; 2585c6db31ffSIgor Russkikh if (!phy_drv_tunable && !dev->ethtool_ops->get_phy_tunable) 25869ce48e5aSMichal Kubecek return -EOPNOTSUPP; 25879ce48e5aSMichal Kubecek if (copy_from_user(&tuna, useraddr, sizeof(tuna))) 25889ce48e5aSMichal Kubecek return -EFAULT; 25899ce48e5aSMichal Kubecek ret = ethtool_phy_tunable_valid(&tuna); 25909ce48e5aSMichal Kubecek if (ret) 25919ce48e5aSMichal Kubecek return ret; 259280ec82e3SAustin Kim data = kzalloc(tuna.len, GFP_USER); 25939ce48e5aSMichal Kubecek if (!data) 25949ce48e5aSMichal Kubecek return -ENOMEM; 2595c6db31ffSIgor Russkikh if (phy_drv_tunable) { 25969ce48e5aSMichal Kubecek mutex_lock(&phydev->lock); 25979ce48e5aSMichal Kubecek ret = phydev->drv->get_tunable(phydev, &tuna, data); 25989ce48e5aSMichal Kubecek mutex_unlock(&phydev->lock); 2599c6db31ffSIgor Russkikh } else { 2600c6db31ffSIgor Russkikh ret = dev->ethtool_ops->get_phy_tunable(dev, &tuna, data); 2601c6db31ffSIgor Russkikh } 26029ce48e5aSMichal Kubecek if (ret) 26039ce48e5aSMichal Kubecek goto out; 26049ce48e5aSMichal Kubecek useraddr += sizeof(tuna); 26059ce48e5aSMichal Kubecek ret = -EFAULT; 26069ce48e5aSMichal Kubecek if (copy_to_user(useraddr, data, tuna.len)) 26079ce48e5aSMichal Kubecek goto out; 26089ce48e5aSMichal Kubecek ret = 0; 26099ce48e5aSMichal Kubecek 26109ce48e5aSMichal Kubecek out: 26119ce48e5aSMichal Kubecek kfree(data); 26129ce48e5aSMichal Kubecek return ret; 26139ce48e5aSMichal Kubecek } 26149ce48e5aSMichal Kubecek 26159ce48e5aSMichal Kubecek static int set_phy_tunable(struct net_device *dev, void __user *useraddr) 26169ce48e5aSMichal Kubecek { 26179ce48e5aSMichal Kubecek struct phy_device *phydev = dev->phydev; 2618c6db31ffSIgor Russkikh struct ethtool_tunable tuna; 2619c6db31ffSIgor Russkikh bool phy_drv_tunable; 26209ce48e5aSMichal Kubecek void *data; 2621c6db31ffSIgor Russkikh int ret; 26229ce48e5aSMichal Kubecek 2623c6db31ffSIgor Russkikh phy_drv_tunable = phydev && phydev->drv && phydev->drv->get_tunable; 2624c6db31ffSIgor Russkikh if (!phy_drv_tunable && !dev->ethtool_ops->set_phy_tunable) 26259ce48e5aSMichal Kubecek return -EOPNOTSUPP; 26269ce48e5aSMichal Kubecek if (copy_from_user(&tuna, useraddr, sizeof(tuna))) 26279ce48e5aSMichal Kubecek return -EFAULT; 26289ce48e5aSMichal Kubecek ret = ethtool_phy_tunable_valid(&tuna); 26299ce48e5aSMichal Kubecek if (ret) 26309ce48e5aSMichal Kubecek return ret; 26319ce48e5aSMichal Kubecek useraddr += sizeof(tuna); 26329ce48e5aSMichal Kubecek data = memdup_user(useraddr, tuna.len); 26339ce48e5aSMichal Kubecek if (IS_ERR(data)) 26349ce48e5aSMichal Kubecek return PTR_ERR(data); 2635c6db31ffSIgor Russkikh if (phy_drv_tunable) { 26369ce48e5aSMichal Kubecek mutex_lock(&phydev->lock); 26379ce48e5aSMichal Kubecek ret = phydev->drv->set_tunable(phydev, &tuna, data); 26389ce48e5aSMichal Kubecek mutex_unlock(&phydev->lock); 2639c6db31ffSIgor Russkikh } else { 2640c6db31ffSIgor Russkikh ret = dev->ethtool_ops->set_phy_tunable(dev, &tuna, data); 2641c6db31ffSIgor Russkikh } 26429ce48e5aSMichal Kubecek 26439ce48e5aSMichal Kubecek kfree(data); 26449ce48e5aSMichal Kubecek return ret; 26459ce48e5aSMichal Kubecek } 26469ce48e5aSMichal Kubecek 26479ce48e5aSMichal Kubecek static int ethtool_get_fecparam(struct net_device *dev, void __user *useraddr) 26489ce48e5aSMichal Kubecek { 26499ce48e5aSMichal Kubecek struct ethtool_fecparam fecparam = { .cmd = ETHTOOL_GFECPARAM }; 26509ce48e5aSMichal Kubecek int rc; 26519ce48e5aSMichal Kubecek 26529ce48e5aSMichal Kubecek if (!dev->ethtool_ops->get_fecparam) 26539ce48e5aSMichal Kubecek return -EOPNOTSUPP; 26549ce48e5aSMichal Kubecek 26559ce48e5aSMichal Kubecek rc = dev->ethtool_ops->get_fecparam(dev, &fecparam); 26569ce48e5aSMichal Kubecek if (rc) 26579ce48e5aSMichal Kubecek return rc; 26589ce48e5aSMichal Kubecek 2659240e1144SJakub Kicinski if (WARN_ON_ONCE(fecparam.reserved)) 2660240e1144SJakub Kicinski fecparam.reserved = 0; 2661240e1144SJakub Kicinski 26629ce48e5aSMichal Kubecek if (copy_to_user(useraddr, &fecparam, sizeof(fecparam))) 26639ce48e5aSMichal Kubecek return -EFAULT; 26649ce48e5aSMichal Kubecek return 0; 26659ce48e5aSMichal Kubecek } 26669ce48e5aSMichal Kubecek 26679ce48e5aSMichal Kubecek static int ethtool_set_fecparam(struct net_device *dev, void __user *useraddr) 26689ce48e5aSMichal Kubecek { 26699ce48e5aSMichal Kubecek struct ethtool_fecparam fecparam; 26709ce48e5aSMichal Kubecek 26719ce48e5aSMichal Kubecek if (!dev->ethtool_ops->set_fecparam) 26729ce48e5aSMichal Kubecek return -EOPNOTSUPP; 26739ce48e5aSMichal Kubecek 26749ce48e5aSMichal Kubecek if (copy_from_user(&fecparam, useraddr, sizeof(fecparam))) 26759ce48e5aSMichal Kubecek return -EFAULT; 26769ce48e5aSMichal Kubecek 2677cf2cc0bfSJakub Kicinski if (!fecparam.fec || fecparam.fec & ETHTOOL_FEC_NONE) 267842ce127dSJakub Kicinski return -EINVAL; 267942ce127dSJakub Kicinski 2680d3b37fc8SJakub Kicinski fecparam.active_fec = 0; 2681240e1144SJakub Kicinski fecparam.reserved = 0; 2682240e1144SJakub Kicinski 26839ce48e5aSMichal Kubecek return dev->ethtool_ops->set_fecparam(dev, &fecparam); 26849ce48e5aSMichal Kubecek } 26859ce48e5aSMichal Kubecek 26869ce48e5aSMichal Kubecek /* The main entry point in this file. Called from net/core/dev_ioctl.c */ 26879ce48e5aSMichal Kubecek 2688*a554bf96SArnd Bergmann int dev_ethtool(struct net *net, struct ifreq *ifr, void __user *useraddr) 26899ce48e5aSMichal Kubecek { 26909ce48e5aSMichal Kubecek struct net_device *dev = __dev_get_by_name(net, ifr->ifr_name); 26919ce48e5aSMichal Kubecek u32 ethcmd, sub_cmd; 26929ce48e5aSMichal Kubecek int rc; 26939ce48e5aSMichal Kubecek netdev_features_t old_features; 26949ce48e5aSMichal Kubecek 26959ce48e5aSMichal Kubecek if (!dev || !netif_device_present(dev)) 26969ce48e5aSMichal Kubecek return -ENODEV; 26979ce48e5aSMichal Kubecek 26989ce48e5aSMichal Kubecek if (copy_from_user(ðcmd, useraddr, sizeof(ethcmd))) 26999ce48e5aSMichal Kubecek return -EFAULT; 27009ce48e5aSMichal Kubecek 27019ce48e5aSMichal Kubecek if (ethcmd == ETHTOOL_PERQUEUE) { 27029ce48e5aSMichal Kubecek if (copy_from_user(&sub_cmd, useraddr + sizeof(ethcmd), sizeof(sub_cmd))) 27039ce48e5aSMichal Kubecek return -EFAULT; 27049ce48e5aSMichal Kubecek } else { 27059ce48e5aSMichal Kubecek sub_cmd = ethcmd; 27069ce48e5aSMichal Kubecek } 27079ce48e5aSMichal Kubecek /* Allow some commands to be done by anyone */ 27089ce48e5aSMichal Kubecek switch (sub_cmd) { 27099ce48e5aSMichal Kubecek case ETHTOOL_GSET: 27109ce48e5aSMichal Kubecek case ETHTOOL_GDRVINFO: 27119ce48e5aSMichal Kubecek case ETHTOOL_GMSGLVL: 27129ce48e5aSMichal Kubecek case ETHTOOL_GLINK: 27139ce48e5aSMichal Kubecek case ETHTOOL_GCOALESCE: 27149ce48e5aSMichal Kubecek case ETHTOOL_GRINGPARAM: 27159ce48e5aSMichal Kubecek case ETHTOOL_GPAUSEPARAM: 27169ce48e5aSMichal Kubecek case ETHTOOL_GRXCSUM: 27179ce48e5aSMichal Kubecek case ETHTOOL_GTXCSUM: 27189ce48e5aSMichal Kubecek case ETHTOOL_GSG: 27199ce48e5aSMichal Kubecek case ETHTOOL_GSSET_INFO: 27209ce48e5aSMichal Kubecek case ETHTOOL_GSTRINGS: 27219ce48e5aSMichal Kubecek case ETHTOOL_GSTATS: 27229ce48e5aSMichal Kubecek case ETHTOOL_GPHYSTATS: 27239ce48e5aSMichal Kubecek case ETHTOOL_GTSO: 27249ce48e5aSMichal Kubecek case ETHTOOL_GPERMADDR: 27259ce48e5aSMichal Kubecek case ETHTOOL_GUFO: 27269ce48e5aSMichal Kubecek case ETHTOOL_GGSO: 27279ce48e5aSMichal Kubecek case ETHTOOL_GGRO: 27289ce48e5aSMichal Kubecek case ETHTOOL_GFLAGS: 27299ce48e5aSMichal Kubecek case ETHTOOL_GPFLAGS: 27309ce48e5aSMichal Kubecek case ETHTOOL_GRXFH: 27319ce48e5aSMichal Kubecek case ETHTOOL_GRXRINGS: 27329ce48e5aSMichal Kubecek case ETHTOOL_GRXCLSRLCNT: 27339ce48e5aSMichal Kubecek case ETHTOOL_GRXCLSRULE: 27349ce48e5aSMichal Kubecek case ETHTOOL_GRXCLSRLALL: 27359ce48e5aSMichal Kubecek case ETHTOOL_GRXFHINDIR: 27369ce48e5aSMichal Kubecek case ETHTOOL_GRSSH: 27379ce48e5aSMichal Kubecek case ETHTOOL_GFEATURES: 27389ce48e5aSMichal Kubecek case ETHTOOL_GCHANNELS: 27399ce48e5aSMichal Kubecek case ETHTOOL_GET_TS_INFO: 27409ce48e5aSMichal Kubecek case ETHTOOL_GEEE: 27419ce48e5aSMichal Kubecek case ETHTOOL_GTUNABLE: 27429ce48e5aSMichal Kubecek case ETHTOOL_PHY_GTUNABLE: 27439ce48e5aSMichal Kubecek case ETHTOOL_GLINKSETTINGS: 27449ce48e5aSMichal Kubecek case ETHTOOL_GFECPARAM: 27459ce48e5aSMichal Kubecek break; 27469ce48e5aSMichal Kubecek default: 27479ce48e5aSMichal Kubecek if (!ns_capable(net->user_ns, CAP_NET_ADMIN)) 27489ce48e5aSMichal Kubecek return -EPERM; 27499ce48e5aSMichal Kubecek } 27509ce48e5aSMichal Kubecek 27519ce48e5aSMichal Kubecek if (dev->ethtool_ops->begin) { 27529ce48e5aSMichal Kubecek rc = dev->ethtool_ops->begin(dev); 27539ce48e5aSMichal Kubecek if (rc < 0) 27549ce48e5aSMichal Kubecek return rc; 27559ce48e5aSMichal Kubecek } 27569ce48e5aSMichal Kubecek old_features = dev->features; 27579ce48e5aSMichal Kubecek 27589ce48e5aSMichal Kubecek switch (ethcmd) { 27599ce48e5aSMichal Kubecek case ETHTOOL_GSET: 27609ce48e5aSMichal Kubecek rc = ethtool_get_settings(dev, useraddr); 27619ce48e5aSMichal Kubecek break; 27629ce48e5aSMichal Kubecek case ETHTOOL_SSET: 27639ce48e5aSMichal Kubecek rc = ethtool_set_settings(dev, useraddr); 27649ce48e5aSMichal Kubecek break; 27659ce48e5aSMichal Kubecek case ETHTOOL_GDRVINFO: 27669ce48e5aSMichal Kubecek rc = ethtool_get_drvinfo(dev, useraddr); 27679ce48e5aSMichal Kubecek break; 27689ce48e5aSMichal Kubecek case ETHTOOL_GREGS: 27699ce48e5aSMichal Kubecek rc = ethtool_get_regs(dev, useraddr); 27709ce48e5aSMichal Kubecek break; 27719ce48e5aSMichal Kubecek case ETHTOOL_GWOL: 27729ce48e5aSMichal Kubecek rc = ethtool_get_wol(dev, useraddr); 27739ce48e5aSMichal Kubecek break; 27749ce48e5aSMichal Kubecek case ETHTOOL_SWOL: 27759ce48e5aSMichal Kubecek rc = ethtool_set_wol(dev, useraddr); 27769ce48e5aSMichal Kubecek break; 27779ce48e5aSMichal Kubecek case ETHTOOL_GMSGLVL: 27789ce48e5aSMichal Kubecek rc = ethtool_get_value(dev, useraddr, ethcmd, 27799ce48e5aSMichal Kubecek dev->ethtool_ops->get_msglevel); 27809ce48e5aSMichal Kubecek break; 27819ce48e5aSMichal Kubecek case ETHTOOL_SMSGLVL: 27829ce48e5aSMichal Kubecek rc = ethtool_set_value_void(dev, useraddr, 27839ce48e5aSMichal Kubecek dev->ethtool_ops->set_msglevel); 27840bda7af3SMichal Kubecek if (!rc) 27850bda7af3SMichal Kubecek ethtool_notify(dev, ETHTOOL_MSG_DEBUG_NTF, NULL); 27869ce48e5aSMichal Kubecek break; 27879ce48e5aSMichal Kubecek case ETHTOOL_GEEE: 27889ce48e5aSMichal Kubecek rc = ethtool_get_eee(dev, useraddr); 27899ce48e5aSMichal Kubecek break; 27909ce48e5aSMichal Kubecek case ETHTOOL_SEEE: 27919ce48e5aSMichal Kubecek rc = ethtool_set_eee(dev, useraddr); 27929ce48e5aSMichal Kubecek break; 27939ce48e5aSMichal Kubecek case ETHTOOL_NWAY_RST: 27949ce48e5aSMichal Kubecek rc = ethtool_nway_reset(dev); 27959ce48e5aSMichal Kubecek break; 27969ce48e5aSMichal Kubecek case ETHTOOL_GLINK: 27979ce48e5aSMichal Kubecek rc = ethtool_get_link(dev, useraddr); 27989ce48e5aSMichal Kubecek break; 27999ce48e5aSMichal Kubecek case ETHTOOL_GEEPROM: 28009ce48e5aSMichal Kubecek rc = ethtool_get_eeprom(dev, useraddr); 28019ce48e5aSMichal Kubecek break; 28029ce48e5aSMichal Kubecek case ETHTOOL_SEEPROM: 28039ce48e5aSMichal Kubecek rc = ethtool_set_eeprom(dev, useraddr); 28049ce48e5aSMichal Kubecek break; 28059ce48e5aSMichal Kubecek case ETHTOOL_GCOALESCE: 28069ce48e5aSMichal Kubecek rc = ethtool_get_coalesce(dev, useraddr); 28079ce48e5aSMichal Kubecek break; 28089ce48e5aSMichal Kubecek case ETHTOOL_SCOALESCE: 28099ce48e5aSMichal Kubecek rc = ethtool_set_coalesce(dev, useraddr); 28109ce48e5aSMichal Kubecek break; 28119ce48e5aSMichal Kubecek case ETHTOOL_GRINGPARAM: 28129ce48e5aSMichal Kubecek rc = ethtool_get_ringparam(dev, useraddr); 28139ce48e5aSMichal Kubecek break; 28149ce48e5aSMichal Kubecek case ETHTOOL_SRINGPARAM: 28159ce48e5aSMichal Kubecek rc = ethtool_set_ringparam(dev, useraddr); 28169ce48e5aSMichal Kubecek break; 28179ce48e5aSMichal Kubecek case ETHTOOL_GPAUSEPARAM: 28189ce48e5aSMichal Kubecek rc = ethtool_get_pauseparam(dev, useraddr); 28199ce48e5aSMichal Kubecek break; 28209ce48e5aSMichal Kubecek case ETHTOOL_SPAUSEPARAM: 28219ce48e5aSMichal Kubecek rc = ethtool_set_pauseparam(dev, useraddr); 28229ce48e5aSMichal Kubecek break; 28239ce48e5aSMichal Kubecek case ETHTOOL_TEST: 28249ce48e5aSMichal Kubecek rc = ethtool_self_test(dev, useraddr); 28259ce48e5aSMichal Kubecek break; 28269ce48e5aSMichal Kubecek case ETHTOOL_GSTRINGS: 28279ce48e5aSMichal Kubecek rc = ethtool_get_strings(dev, useraddr); 28289ce48e5aSMichal Kubecek break; 28299ce48e5aSMichal Kubecek case ETHTOOL_PHYS_ID: 28309ce48e5aSMichal Kubecek rc = ethtool_phys_id(dev, useraddr); 28319ce48e5aSMichal Kubecek break; 28329ce48e5aSMichal Kubecek case ETHTOOL_GSTATS: 28339ce48e5aSMichal Kubecek rc = ethtool_get_stats(dev, useraddr); 28349ce48e5aSMichal Kubecek break; 28359ce48e5aSMichal Kubecek case ETHTOOL_GPERMADDR: 28369ce48e5aSMichal Kubecek rc = ethtool_get_perm_addr(dev, useraddr); 28379ce48e5aSMichal Kubecek break; 28389ce48e5aSMichal Kubecek case ETHTOOL_GFLAGS: 28399ce48e5aSMichal Kubecek rc = ethtool_get_value(dev, useraddr, ethcmd, 28409ce48e5aSMichal Kubecek __ethtool_get_flags); 28419ce48e5aSMichal Kubecek break; 28429ce48e5aSMichal Kubecek case ETHTOOL_SFLAGS: 28439ce48e5aSMichal Kubecek rc = ethtool_set_value(dev, useraddr, __ethtool_set_flags); 28449ce48e5aSMichal Kubecek break; 28459ce48e5aSMichal Kubecek case ETHTOOL_GPFLAGS: 28469ce48e5aSMichal Kubecek rc = ethtool_get_value(dev, useraddr, ethcmd, 28479ce48e5aSMichal Kubecek dev->ethtool_ops->get_priv_flags); 2848111dcba3SMichal Kubecek if (!rc) 2849111dcba3SMichal Kubecek ethtool_notify(dev, ETHTOOL_MSG_PRIVFLAGS_NTF, NULL); 28509ce48e5aSMichal Kubecek break; 28519ce48e5aSMichal Kubecek case ETHTOOL_SPFLAGS: 28529ce48e5aSMichal Kubecek rc = ethtool_set_value(dev, useraddr, 28539ce48e5aSMichal Kubecek dev->ethtool_ops->set_priv_flags); 28549ce48e5aSMichal Kubecek break; 28559ce48e5aSMichal Kubecek case ETHTOOL_GRXFH: 28569ce48e5aSMichal Kubecek case ETHTOOL_GRXRINGS: 28579ce48e5aSMichal Kubecek case ETHTOOL_GRXCLSRLCNT: 28589ce48e5aSMichal Kubecek case ETHTOOL_GRXCLSRULE: 28599ce48e5aSMichal Kubecek case ETHTOOL_GRXCLSRLALL: 28609ce48e5aSMichal Kubecek rc = ethtool_get_rxnfc(dev, ethcmd, useraddr); 28619ce48e5aSMichal Kubecek break; 28629ce48e5aSMichal Kubecek case ETHTOOL_SRXFH: 28639ce48e5aSMichal Kubecek case ETHTOOL_SRXCLSRLDEL: 28649ce48e5aSMichal Kubecek case ETHTOOL_SRXCLSRLINS: 28659ce48e5aSMichal Kubecek rc = ethtool_set_rxnfc(dev, ethcmd, useraddr); 28669ce48e5aSMichal Kubecek break; 28679ce48e5aSMichal Kubecek case ETHTOOL_FLASHDEV: 28689ce48e5aSMichal Kubecek rc = ethtool_flash_device(dev, useraddr); 28699ce48e5aSMichal Kubecek break; 28709ce48e5aSMichal Kubecek case ETHTOOL_RESET: 28719ce48e5aSMichal Kubecek rc = ethtool_reset(dev, useraddr); 28729ce48e5aSMichal Kubecek break; 28739ce48e5aSMichal Kubecek case ETHTOOL_GSSET_INFO: 28749ce48e5aSMichal Kubecek rc = ethtool_get_sset_info(dev, useraddr); 28759ce48e5aSMichal Kubecek break; 28769ce48e5aSMichal Kubecek case ETHTOOL_GRXFHINDIR: 28779ce48e5aSMichal Kubecek rc = ethtool_get_rxfh_indir(dev, useraddr); 28789ce48e5aSMichal Kubecek break; 28799ce48e5aSMichal Kubecek case ETHTOOL_SRXFHINDIR: 28809ce48e5aSMichal Kubecek rc = ethtool_set_rxfh_indir(dev, useraddr); 28819ce48e5aSMichal Kubecek break; 28829ce48e5aSMichal Kubecek case ETHTOOL_GRSSH: 28839ce48e5aSMichal Kubecek rc = ethtool_get_rxfh(dev, useraddr); 28849ce48e5aSMichal Kubecek break; 28859ce48e5aSMichal Kubecek case ETHTOOL_SRSSH: 28869ce48e5aSMichal Kubecek rc = ethtool_set_rxfh(dev, useraddr); 28879ce48e5aSMichal Kubecek break; 28889ce48e5aSMichal Kubecek case ETHTOOL_GFEATURES: 28899ce48e5aSMichal Kubecek rc = ethtool_get_features(dev, useraddr); 28909ce48e5aSMichal Kubecek break; 28919ce48e5aSMichal Kubecek case ETHTOOL_SFEATURES: 28929ce48e5aSMichal Kubecek rc = ethtool_set_features(dev, useraddr); 28939ce48e5aSMichal Kubecek break; 28949ce48e5aSMichal Kubecek case ETHTOOL_GTXCSUM: 28959ce48e5aSMichal Kubecek case ETHTOOL_GRXCSUM: 28969ce48e5aSMichal Kubecek case ETHTOOL_GSG: 28979ce48e5aSMichal Kubecek case ETHTOOL_GTSO: 28989ce48e5aSMichal Kubecek case ETHTOOL_GGSO: 28999ce48e5aSMichal Kubecek case ETHTOOL_GGRO: 29009ce48e5aSMichal Kubecek rc = ethtool_get_one_feature(dev, useraddr, ethcmd); 29019ce48e5aSMichal Kubecek break; 29029ce48e5aSMichal Kubecek case ETHTOOL_STXCSUM: 29039ce48e5aSMichal Kubecek case ETHTOOL_SRXCSUM: 29049ce48e5aSMichal Kubecek case ETHTOOL_SSG: 29059ce48e5aSMichal Kubecek case ETHTOOL_STSO: 29069ce48e5aSMichal Kubecek case ETHTOOL_SGSO: 29079ce48e5aSMichal Kubecek case ETHTOOL_SGRO: 29089ce48e5aSMichal Kubecek rc = ethtool_set_one_feature(dev, useraddr, ethcmd); 29099ce48e5aSMichal Kubecek break; 29109ce48e5aSMichal Kubecek case ETHTOOL_GCHANNELS: 29119ce48e5aSMichal Kubecek rc = ethtool_get_channels(dev, useraddr); 29129ce48e5aSMichal Kubecek break; 29139ce48e5aSMichal Kubecek case ETHTOOL_SCHANNELS: 29149ce48e5aSMichal Kubecek rc = ethtool_set_channels(dev, useraddr); 29159ce48e5aSMichal Kubecek break; 29169ce48e5aSMichal Kubecek case ETHTOOL_SET_DUMP: 29179ce48e5aSMichal Kubecek rc = ethtool_set_dump(dev, useraddr); 29189ce48e5aSMichal Kubecek break; 29199ce48e5aSMichal Kubecek case ETHTOOL_GET_DUMP_FLAG: 29209ce48e5aSMichal Kubecek rc = ethtool_get_dump_flag(dev, useraddr); 29219ce48e5aSMichal Kubecek break; 29229ce48e5aSMichal Kubecek case ETHTOOL_GET_DUMP_DATA: 29239ce48e5aSMichal Kubecek rc = ethtool_get_dump_data(dev, useraddr); 29249ce48e5aSMichal Kubecek break; 29259ce48e5aSMichal Kubecek case ETHTOOL_GET_TS_INFO: 29269ce48e5aSMichal Kubecek rc = ethtool_get_ts_info(dev, useraddr); 29279ce48e5aSMichal Kubecek break; 29289ce48e5aSMichal Kubecek case ETHTOOL_GMODULEINFO: 29299ce48e5aSMichal Kubecek rc = ethtool_get_module_info(dev, useraddr); 29309ce48e5aSMichal Kubecek break; 29319ce48e5aSMichal Kubecek case ETHTOOL_GMODULEEEPROM: 29329ce48e5aSMichal Kubecek rc = ethtool_get_module_eeprom(dev, useraddr); 29339ce48e5aSMichal Kubecek break; 29349ce48e5aSMichal Kubecek case ETHTOOL_GTUNABLE: 29359ce48e5aSMichal Kubecek rc = ethtool_get_tunable(dev, useraddr); 29369ce48e5aSMichal Kubecek break; 29379ce48e5aSMichal Kubecek case ETHTOOL_STUNABLE: 29389ce48e5aSMichal Kubecek rc = ethtool_set_tunable(dev, useraddr); 29399ce48e5aSMichal Kubecek break; 29409ce48e5aSMichal Kubecek case ETHTOOL_GPHYSTATS: 29419ce48e5aSMichal Kubecek rc = ethtool_get_phy_stats(dev, useraddr); 29429ce48e5aSMichal Kubecek break; 29439ce48e5aSMichal Kubecek case ETHTOOL_PERQUEUE: 29449ce48e5aSMichal Kubecek rc = ethtool_set_per_queue(dev, useraddr, sub_cmd); 29459ce48e5aSMichal Kubecek break; 29469ce48e5aSMichal Kubecek case ETHTOOL_GLINKSETTINGS: 29479ce48e5aSMichal Kubecek rc = ethtool_get_link_ksettings(dev, useraddr); 29489ce48e5aSMichal Kubecek break; 29499ce48e5aSMichal Kubecek case ETHTOOL_SLINKSETTINGS: 29509ce48e5aSMichal Kubecek rc = ethtool_set_link_ksettings(dev, useraddr); 29519ce48e5aSMichal Kubecek break; 29529ce48e5aSMichal Kubecek case ETHTOOL_PHY_GTUNABLE: 29539ce48e5aSMichal Kubecek rc = get_phy_tunable(dev, useraddr); 29549ce48e5aSMichal Kubecek break; 29559ce48e5aSMichal Kubecek case ETHTOOL_PHY_STUNABLE: 29569ce48e5aSMichal Kubecek rc = set_phy_tunable(dev, useraddr); 29579ce48e5aSMichal Kubecek break; 29589ce48e5aSMichal Kubecek case ETHTOOL_GFECPARAM: 29599ce48e5aSMichal Kubecek rc = ethtool_get_fecparam(dev, useraddr); 29609ce48e5aSMichal Kubecek break; 29619ce48e5aSMichal Kubecek case ETHTOOL_SFECPARAM: 29629ce48e5aSMichal Kubecek rc = ethtool_set_fecparam(dev, useraddr); 29639ce48e5aSMichal Kubecek break; 29649ce48e5aSMichal Kubecek default: 29659ce48e5aSMichal Kubecek rc = -EOPNOTSUPP; 29669ce48e5aSMichal Kubecek } 29679ce48e5aSMichal Kubecek 29689ce48e5aSMichal Kubecek if (dev->ethtool_ops->complete) 29699ce48e5aSMichal Kubecek dev->ethtool_ops->complete(dev); 29709ce48e5aSMichal Kubecek 29719ce48e5aSMichal Kubecek if (old_features != dev->features) 29729ce48e5aSMichal Kubecek netdev_features_change(dev); 29739ce48e5aSMichal Kubecek 29749ce48e5aSMichal Kubecek return rc; 29759ce48e5aSMichal Kubecek } 29769ce48e5aSMichal Kubecek 29779ce48e5aSMichal Kubecek struct ethtool_rx_flow_key { 29789ce48e5aSMichal Kubecek struct flow_dissector_key_basic basic; 29799ce48e5aSMichal Kubecek union { 29809ce48e5aSMichal Kubecek struct flow_dissector_key_ipv4_addrs ipv4; 29819ce48e5aSMichal Kubecek struct flow_dissector_key_ipv6_addrs ipv6; 29829ce48e5aSMichal Kubecek }; 29839ce48e5aSMichal Kubecek struct flow_dissector_key_ports tp; 29849ce48e5aSMichal Kubecek struct flow_dissector_key_ip ip; 29859ce48e5aSMichal Kubecek struct flow_dissector_key_vlan vlan; 29869ce48e5aSMichal Kubecek struct flow_dissector_key_eth_addrs eth_addrs; 29879ce48e5aSMichal Kubecek } __aligned(BITS_PER_LONG / 8); /* Ensure that we can do comparisons as longs. */ 29889ce48e5aSMichal Kubecek 29899ce48e5aSMichal Kubecek struct ethtool_rx_flow_match { 29909ce48e5aSMichal Kubecek struct flow_dissector dissector; 29919ce48e5aSMichal Kubecek struct ethtool_rx_flow_key key; 29929ce48e5aSMichal Kubecek struct ethtool_rx_flow_key mask; 29939ce48e5aSMichal Kubecek }; 29949ce48e5aSMichal Kubecek 29959ce48e5aSMichal Kubecek struct ethtool_rx_flow_rule * 29969ce48e5aSMichal Kubecek ethtool_rx_flow_rule_create(const struct ethtool_rx_flow_spec_input *input) 29979ce48e5aSMichal Kubecek { 29989ce48e5aSMichal Kubecek const struct ethtool_rx_flow_spec *fs = input->fs; 29999ce48e5aSMichal Kubecek static struct in6_addr zero_addr = {}; 30009ce48e5aSMichal Kubecek struct ethtool_rx_flow_match *match; 30019ce48e5aSMichal Kubecek struct ethtool_rx_flow_rule *flow; 30029ce48e5aSMichal Kubecek struct flow_action_entry *act; 30039ce48e5aSMichal Kubecek 30049ce48e5aSMichal Kubecek flow = kzalloc(sizeof(struct ethtool_rx_flow_rule) + 30059ce48e5aSMichal Kubecek sizeof(struct ethtool_rx_flow_match), GFP_KERNEL); 30069ce48e5aSMichal Kubecek if (!flow) 30079ce48e5aSMichal Kubecek return ERR_PTR(-ENOMEM); 30089ce48e5aSMichal Kubecek 30099ce48e5aSMichal Kubecek /* ethtool_rx supports only one single action per rule. */ 30109ce48e5aSMichal Kubecek flow->rule = flow_rule_alloc(1); 30119ce48e5aSMichal Kubecek if (!flow->rule) { 30129ce48e5aSMichal Kubecek kfree(flow); 30139ce48e5aSMichal Kubecek return ERR_PTR(-ENOMEM); 30149ce48e5aSMichal Kubecek } 30159ce48e5aSMichal Kubecek 30169ce48e5aSMichal Kubecek match = (struct ethtool_rx_flow_match *)flow->priv; 30179ce48e5aSMichal Kubecek flow->rule->match.dissector = &match->dissector; 30189ce48e5aSMichal Kubecek flow->rule->match.mask = &match->mask; 30199ce48e5aSMichal Kubecek flow->rule->match.key = &match->key; 30209ce48e5aSMichal Kubecek 30219ce48e5aSMichal Kubecek match->mask.basic.n_proto = htons(0xffff); 30229ce48e5aSMichal Kubecek 30239ce48e5aSMichal Kubecek switch (fs->flow_type & ~(FLOW_EXT | FLOW_MAC_EXT | FLOW_RSS)) { 30249ce48e5aSMichal Kubecek case ETHER_FLOW: { 30259ce48e5aSMichal Kubecek const struct ethhdr *ether_spec, *ether_m_spec; 30269ce48e5aSMichal Kubecek 30279ce48e5aSMichal Kubecek ether_spec = &fs->h_u.ether_spec; 30289ce48e5aSMichal Kubecek ether_m_spec = &fs->m_u.ether_spec; 30299ce48e5aSMichal Kubecek 30309ce48e5aSMichal Kubecek if (!is_zero_ether_addr(ether_m_spec->h_source)) { 30319ce48e5aSMichal Kubecek ether_addr_copy(match->key.eth_addrs.src, 30329ce48e5aSMichal Kubecek ether_spec->h_source); 30339ce48e5aSMichal Kubecek ether_addr_copy(match->mask.eth_addrs.src, 30349ce48e5aSMichal Kubecek ether_m_spec->h_source); 30359ce48e5aSMichal Kubecek } 30369ce48e5aSMichal Kubecek if (!is_zero_ether_addr(ether_m_spec->h_dest)) { 30379ce48e5aSMichal Kubecek ether_addr_copy(match->key.eth_addrs.dst, 30389ce48e5aSMichal Kubecek ether_spec->h_dest); 30399ce48e5aSMichal Kubecek ether_addr_copy(match->mask.eth_addrs.dst, 30409ce48e5aSMichal Kubecek ether_m_spec->h_dest); 30419ce48e5aSMichal Kubecek } 30429ce48e5aSMichal Kubecek if (ether_m_spec->h_proto) { 30439ce48e5aSMichal Kubecek match->key.basic.n_proto = ether_spec->h_proto; 30449ce48e5aSMichal Kubecek match->mask.basic.n_proto = ether_m_spec->h_proto; 30459ce48e5aSMichal Kubecek } 30469ce48e5aSMichal Kubecek } 30479ce48e5aSMichal Kubecek break; 30489ce48e5aSMichal Kubecek case TCP_V4_FLOW: 30499ce48e5aSMichal Kubecek case UDP_V4_FLOW: { 30509ce48e5aSMichal Kubecek const struct ethtool_tcpip4_spec *v4_spec, *v4_m_spec; 30519ce48e5aSMichal Kubecek 30529ce48e5aSMichal Kubecek match->key.basic.n_proto = htons(ETH_P_IP); 30539ce48e5aSMichal Kubecek 30549ce48e5aSMichal Kubecek v4_spec = &fs->h_u.tcp_ip4_spec; 30559ce48e5aSMichal Kubecek v4_m_spec = &fs->m_u.tcp_ip4_spec; 30569ce48e5aSMichal Kubecek 30579ce48e5aSMichal Kubecek if (v4_m_spec->ip4src) { 30589ce48e5aSMichal Kubecek match->key.ipv4.src = v4_spec->ip4src; 30599ce48e5aSMichal Kubecek match->mask.ipv4.src = v4_m_spec->ip4src; 30609ce48e5aSMichal Kubecek } 30619ce48e5aSMichal Kubecek if (v4_m_spec->ip4dst) { 30629ce48e5aSMichal Kubecek match->key.ipv4.dst = v4_spec->ip4dst; 30639ce48e5aSMichal Kubecek match->mask.ipv4.dst = v4_m_spec->ip4dst; 30649ce48e5aSMichal Kubecek } 30659ce48e5aSMichal Kubecek if (v4_m_spec->ip4src || 30669ce48e5aSMichal Kubecek v4_m_spec->ip4dst) { 30679ce48e5aSMichal Kubecek match->dissector.used_keys |= 30689ce48e5aSMichal Kubecek BIT(FLOW_DISSECTOR_KEY_IPV4_ADDRS); 30699ce48e5aSMichal Kubecek match->dissector.offset[FLOW_DISSECTOR_KEY_IPV4_ADDRS] = 30709ce48e5aSMichal Kubecek offsetof(struct ethtool_rx_flow_key, ipv4); 30719ce48e5aSMichal Kubecek } 30729ce48e5aSMichal Kubecek if (v4_m_spec->psrc) { 30739ce48e5aSMichal Kubecek match->key.tp.src = v4_spec->psrc; 30749ce48e5aSMichal Kubecek match->mask.tp.src = v4_m_spec->psrc; 30759ce48e5aSMichal Kubecek } 30769ce48e5aSMichal Kubecek if (v4_m_spec->pdst) { 30779ce48e5aSMichal Kubecek match->key.tp.dst = v4_spec->pdst; 30789ce48e5aSMichal Kubecek match->mask.tp.dst = v4_m_spec->pdst; 30799ce48e5aSMichal Kubecek } 30809ce48e5aSMichal Kubecek if (v4_m_spec->psrc || 30819ce48e5aSMichal Kubecek v4_m_spec->pdst) { 30829ce48e5aSMichal Kubecek match->dissector.used_keys |= 30839ce48e5aSMichal Kubecek BIT(FLOW_DISSECTOR_KEY_PORTS); 30849ce48e5aSMichal Kubecek match->dissector.offset[FLOW_DISSECTOR_KEY_PORTS] = 30859ce48e5aSMichal Kubecek offsetof(struct ethtool_rx_flow_key, tp); 30869ce48e5aSMichal Kubecek } 30879ce48e5aSMichal Kubecek if (v4_m_spec->tos) { 30889ce48e5aSMichal Kubecek match->key.ip.tos = v4_spec->tos; 30899ce48e5aSMichal Kubecek match->mask.ip.tos = v4_m_spec->tos; 30909ce48e5aSMichal Kubecek match->dissector.used_keys |= 30919ce48e5aSMichal Kubecek BIT(FLOW_DISSECTOR_KEY_IP); 30929ce48e5aSMichal Kubecek match->dissector.offset[FLOW_DISSECTOR_KEY_IP] = 30939ce48e5aSMichal Kubecek offsetof(struct ethtool_rx_flow_key, ip); 30949ce48e5aSMichal Kubecek } 30959ce48e5aSMichal Kubecek } 30969ce48e5aSMichal Kubecek break; 30979ce48e5aSMichal Kubecek case TCP_V6_FLOW: 30989ce48e5aSMichal Kubecek case UDP_V6_FLOW: { 30999ce48e5aSMichal Kubecek const struct ethtool_tcpip6_spec *v6_spec, *v6_m_spec; 31009ce48e5aSMichal Kubecek 31019ce48e5aSMichal Kubecek match->key.basic.n_proto = htons(ETH_P_IPV6); 31029ce48e5aSMichal Kubecek 31039ce48e5aSMichal Kubecek v6_spec = &fs->h_u.tcp_ip6_spec; 31049ce48e5aSMichal Kubecek v6_m_spec = &fs->m_u.tcp_ip6_spec; 31059ce48e5aSMichal Kubecek if (memcmp(v6_m_spec->ip6src, &zero_addr, sizeof(zero_addr))) { 31069ce48e5aSMichal Kubecek memcpy(&match->key.ipv6.src, v6_spec->ip6src, 31079ce48e5aSMichal Kubecek sizeof(match->key.ipv6.src)); 31089ce48e5aSMichal Kubecek memcpy(&match->mask.ipv6.src, v6_m_spec->ip6src, 31099ce48e5aSMichal Kubecek sizeof(match->mask.ipv6.src)); 31109ce48e5aSMichal Kubecek } 31119ce48e5aSMichal Kubecek if (memcmp(v6_m_spec->ip6dst, &zero_addr, sizeof(zero_addr))) { 31129ce48e5aSMichal Kubecek memcpy(&match->key.ipv6.dst, v6_spec->ip6dst, 31139ce48e5aSMichal Kubecek sizeof(match->key.ipv6.dst)); 31149ce48e5aSMichal Kubecek memcpy(&match->mask.ipv6.dst, v6_m_spec->ip6dst, 31159ce48e5aSMichal Kubecek sizeof(match->mask.ipv6.dst)); 31169ce48e5aSMichal Kubecek } 31179ce48e5aSMichal Kubecek if (memcmp(v6_m_spec->ip6src, &zero_addr, sizeof(zero_addr)) || 311821a739c6SGaurav Singh memcmp(v6_m_spec->ip6dst, &zero_addr, sizeof(zero_addr))) { 31199ce48e5aSMichal Kubecek match->dissector.used_keys |= 31209ce48e5aSMichal Kubecek BIT(FLOW_DISSECTOR_KEY_IPV6_ADDRS); 31219ce48e5aSMichal Kubecek match->dissector.offset[FLOW_DISSECTOR_KEY_IPV6_ADDRS] = 31229ce48e5aSMichal Kubecek offsetof(struct ethtool_rx_flow_key, ipv6); 31239ce48e5aSMichal Kubecek } 31249ce48e5aSMichal Kubecek if (v6_m_spec->psrc) { 31259ce48e5aSMichal Kubecek match->key.tp.src = v6_spec->psrc; 31269ce48e5aSMichal Kubecek match->mask.tp.src = v6_m_spec->psrc; 31279ce48e5aSMichal Kubecek } 31289ce48e5aSMichal Kubecek if (v6_m_spec->pdst) { 31299ce48e5aSMichal Kubecek match->key.tp.dst = v6_spec->pdst; 31309ce48e5aSMichal Kubecek match->mask.tp.dst = v6_m_spec->pdst; 31319ce48e5aSMichal Kubecek } 31329ce48e5aSMichal Kubecek if (v6_m_spec->psrc || 31339ce48e5aSMichal Kubecek v6_m_spec->pdst) { 31349ce48e5aSMichal Kubecek match->dissector.used_keys |= 31359ce48e5aSMichal Kubecek BIT(FLOW_DISSECTOR_KEY_PORTS); 31369ce48e5aSMichal Kubecek match->dissector.offset[FLOW_DISSECTOR_KEY_PORTS] = 31379ce48e5aSMichal Kubecek offsetof(struct ethtool_rx_flow_key, tp); 31389ce48e5aSMichal Kubecek } 31399ce48e5aSMichal Kubecek if (v6_m_spec->tclass) { 31409ce48e5aSMichal Kubecek match->key.ip.tos = v6_spec->tclass; 31419ce48e5aSMichal Kubecek match->mask.ip.tos = v6_m_spec->tclass; 31429ce48e5aSMichal Kubecek match->dissector.used_keys |= 31439ce48e5aSMichal Kubecek BIT(FLOW_DISSECTOR_KEY_IP); 31449ce48e5aSMichal Kubecek match->dissector.offset[FLOW_DISSECTOR_KEY_IP] = 31459ce48e5aSMichal Kubecek offsetof(struct ethtool_rx_flow_key, ip); 31469ce48e5aSMichal Kubecek } 31479ce48e5aSMichal Kubecek } 31489ce48e5aSMichal Kubecek break; 31499ce48e5aSMichal Kubecek default: 31509ce48e5aSMichal Kubecek ethtool_rx_flow_rule_destroy(flow); 31519ce48e5aSMichal Kubecek return ERR_PTR(-EINVAL); 31529ce48e5aSMichal Kubecek } 31539ce48e5aSMichal Kubecek 31549ce48e5aSMichal Kubecek switch (fs->flow_type & ~(FLOW_EXT | FLOW_MAC_EXT | FLOW_RSS)) { 31559ce48e5aSMichal Kubecek case TCP_V4_FLOW: 31569ce48e5aSMichal Kubecek case TCP_V6_FLOW: 31579ce48e5aSMichal Kubecek match->key.basic.ip_proto = IPPROTO_TCP; 3158d0a84e1fSVishal Kulkarni match->mask.basic.ip_proto = 0xff; 31599ce48e5aSMichal Kubecek break; 31609ce48e5aSMichal Kubecek case UDP_V4_FLOW: 31619ce48e5aSMichal Kubecek case UDP_V6_FLOW: 31629ce48e5aSMichal Kubecek match->key.basic.ip_proto = IPPROTO_UDP; 3163d0a84e1fSVishal Kulkarni match->mask.basic.ip_proto = 0xff; 31649ce48e5aSMichal Kubecek break; 31659ce48e5aSMichal Kubecek } 31669ce48e5aSMichal Kubecek 31679ce48e5aSMichal Kubecek match->dissector.used_keys |= BIT(FLOW_DISSECTOR_KEY_BASIC); 31689ce48e5aSMichal Kubecek match->dissector.offset[FLOW_DISSECTOR_KEY_BASIC] = 31699ce48e5aSMichal Kubecek offsetof(struct ethtool_rx_flow_key, basic); 31709ce48e5aSMichal Kubecek 31719ce48e5aSMichal Kubecek if (fs->flow_type & FLOW_EXT) { 31729ce48e5aSMichal Kubecek const struct ethtool_flow_ext *ext_h_spec = &fs->h_ext; 31739ce48e5aSMichal Kubecek const struct ethtool_flow_ext *ext_m_spec = &fs->m_ext; 31749ce48e5aSMichal Kubecek 31759ce48e5aSMichal Kubecek if (ext_m_spec->vlan_etype) { 31769ce48e5aSMichal Kubecek match->key.vlan.vlan_tpid = ext_h_spec->vlan_etype; 31779ce48e5aSMichal Kubecek match->mask.vlan.vlan_tpid = ext_m_spec->vlan_etype; 31789ce48e5aSMichal Kubecek } 31799ce48e5aSMichal Kubecek 31809ce48e5aSMichal Kubecek if (ext_m_spec->vlan_tci) { 31819ce48e5aSMichal Kubecek match->key.vlan.vlan_id = 31829ce48e5aSMichal Kubecek ntohs(ext_h_spec->vlan_tci) & 0x0fff; 31839ce48e5aSMichal Kubecek match->mask.vlan.vlan_id = 31849ce48e5aSMichal Kubecek ntohs(ext_m_spec->vlan_tci) & 0x0fff; 31859ce48e5aSMichal Kubecek 31869ce48e5aSMichal Kubecek match->key.vlan.vlan_dei = 31879ce48e5aSMichal Kubecek !!(ext_h_spec->vlan_tci & htons(0x1000)); 31889ce48e5aSMichal Kubecek match->mask.vlan.vlan_dei = 31899ce48e5aSMichal Kubecek !!(ext_m_spec->vlan_tci & htons(0x1000)); 31909ce48e5aSMichal Kubecek 31919ce48e5aSMichal Kubecek match->key.vlan.vlan_priority = 31929ce48e5aSMichal Kubecek (ntohs(ext_h_spec->vlan_tci) & 0xe000) >> 13; 31939ce48e5aSMichal Kubecek match->mask.vlan.vlan_priority = 31949ce48e5aSMichal Kubecek (ntohs(ext_m_spec->vlan_tci) & 0xe000) >> 13; 31959ce48e5aSMichal Kubecek } 31969ce48e5aSMichal Kubecek 31979ce48e5aSMichal Kubecek if (ext_m_spec->vlan_etype || 31989ce48e5aSMichal Kubecek ext_m_spec->vlan_tci) { 31999ce48e5aSMichal Kubecek match->dissector.used_keys |= 32009ce48e5aSMichal Kubecek BIT(FLOW_DISSECTOR_KEY_VLAN); 32019ce48e5aSMichal Kubecek match->dissector.offset[FLOW_DISSECTOR_KEY_VLAN] = 32029ce48e5aSMichal Kubecek offsetof(struct ethtool_rx_flow_key, vlan); 32039ce48e5aSMichal Kubecek } 32049ce48e5aSMichal Kubecek } 32059ce48e5aSMichal Kubecek if (fs->flow_type & FLOW_MAC_EXT) { 32069ce48e5aSMichal Kubecek const struct ethtool_flow_ext *ext_h_spec = &fs->h_ext; 32079ce48e5aSMichal Kubecek const struct ethtool_flow_ext *ext_m_spec = &fs->m_ext; 32089ce48e5aSMichal Kubecek 32099ce48e5aSMichal Kubecek memcpy(match->key.eth_addrs.dst, ext_h_spec->h_dest, 32109ce48e5aSMichal Kubecek ETH_ALEN); 32119ce48e5aSMichal Kubecek memcpy(match->mask.eth_addrs.dst, ext_m_spec->h_dest, 32129ce48e5aSMichal Kubecek ETH_ALEN); 32139ce48e5aSMichal Kubecek 32149ce48e5aSMichal Kubecek match->dissector.used_keys |= 32159ce48e5aSMichal Kubecek BIT(FLOW_DISSECTOR_KEY_ETH_ADDRS); 32169ce48e5aSMichal Kubecek match->dissector.offset[FLOW_DISSECTOR_KEY_ETH_ADDRS] = 32179ce48e5aSMichal Kubecek offsetof(struct ethtool_rx_flow_key, eth_addrs); 32189ce48e5aSMichal Kubecek } 32199ce48e5aSMichal Kubecek 32209ce48e5aSMichal Kubecek act = &flow->rule->action.entries[0]; 32219ce48e5aSMichal Kubecek switch (fs->ring_cookie) { 32229ce48e5aSMichal Kubecek case RX_CLS_FLOW_DISC: 32239ce48e5aSMichal Kubecek act->id = FLOW_ACTION_DROP; 32249ce48e5aSMichal Kubecek break; 32259ce48e5aSMichal Kubecek case RX_CLS_FLOW_WAKE: 32269ce48e5aSMichal Kubecek act->id = FLOW_ACTION_WAKE; 32279ce48e5aSMichal Kubecek break; 32289ce48e5aSMichal Kubecek default: 32299ce48e5aSMichal Kubecek act->id = FLOW_ACTION_QUEUE; 32309ce48e5aSMichal Kubecek if (fs->flow_type & FLOW_RSS) 32319ce48e5aSMichal Kubecek act->queue.ctx = input->rss_ctx; 32329ce48e5aSMichal Kubecek 32339ce48e5aSMichal Kubecek act->queue.vf = ethtool_get_flow_spec_ring_vf(fs->ring_cookie); 32349ce48e5aSMichal Kubecek act->queue.index = ethtool_get_flow_spec_ring(fs->ring_cookie); 32359ce48e5aSMichal Kubecek break; 32369ce48e5aSMichal Kubecek } 32379ce48e5aSMichal Kubecek 32389ce48e5aSMichal Kubecek return flow; 32399ce48e5aSMichal Kubecek } 32409ce48e5aSMichal Kubecek EXPORT_SYMBOL(ethtool_rx_flow_rule_create); 32419ce48e5aSMichal Kubecek 32429ce48e5aSMichal Kubecek void ethtool_rx_flow_rule_destroy(struct ethtool_rx_flow_rule *flow) 32439ce48e5aSMichal Kubecek { 32449ce48e5aSMichal Kubecek kfree(flow->rule); 32459ce48e5aSMichal Kubecek kfree(flow); 32469ce48e5aSMichal Kubecek } 32479ce48e5aSMichal Kubecek EXPORT_SYMBOL(ethtool_rx_flow_rule_destroy); 3248