3477 lines
89 KiB
C
3477 lines
89 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* net/core/ethtool.c - Ethtool ioctl handler
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* Copyright (c) 2003 Matthew Wilcox <matthew@wil.cx>
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*
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* This file is where we call all the ethtool_ops commands to get
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* the information ethtool needs.
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*/
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#include <linux/compat.h>
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#include <linux/etherdevice.h>
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#include <linux/module.h>
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#include <linux/types.h>
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#include <linux/capability.h>
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#include <linux/errno.h>
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#include <linux/ethtool.h>
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#include <linux/netdevice.h>
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#include <linux/net_tstamp.h>
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#include <linux/phy.h>
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#include <linux/bitops.h>
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#include <linux/uaccess.h>
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#include <linux/vmalloc.h>
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#include <linux/sfp.h>
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#include <linux/slab.h>
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#include <linux/rtnetlink.h>
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#include <linux/sched/signal.h>
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#include <linux/net.h>
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#include <linux/pm_runtime.h>
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#include <linux/utsname.h>
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#include <net/devlink.h>
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#include <net/ipv6.h>
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#include <net/xdp_sock_drv.h>
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#include <net/flow_offload.h>
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#include <linux/ethtool_netlink.h>
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#include "common.h"
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/* State held across locks and calls for commands which have devlink fallback */
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struct ethtool_devlink_compat {
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struct devlink *devlink;
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union {
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struct ethtool_flash efl;
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struct ethtool_drvinfo info;
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};
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};
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static struct devlink *netdev_to_devlink_get(struct net_device *dev)
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{
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if (!dev->devlink_port)
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return NULL;
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return devlink_try_get(dev->devlink_port->devlink);
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}
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/*
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* Some useful ethtool_ops methods that're device independent.
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* If we find that all drivers want to do the same thing here,
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* we can turn these into dev_() function calls.
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*/
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u32 ethtool_op_get_link(struct net_device *dev)
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{
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/* Synchronize carrier state with link watch, see also rtnl_getlink() */
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linkwatch_sync_dev(dev);
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return netif_carrier_ok(dev) ? 1 : 0;
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}
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EXPORT_SYMBOL(ethtool_op_get_link);
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int ethtool_op_get_ts_info(struct net_device *dev, struct ethtool_ts_info *info)
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{
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info->so_timestamping =
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SOF_TIMESTAMPING_TX_SOFTWARE |
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SOF_TIMESTAMPING_RX_SOFTWARE |
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SOF_TIMESTAMPING_SOFTWARE;
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info->phc_index = -1;
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return 0;
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}
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EXPORT_SYMBOL(ethtool_op_get_ts_info);
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/* Handlers for each ethtool command */
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static int ethtool_get_features(struct net_device *dev, void __user *useraddr)
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{
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struct ethtool_gfeatures cmd = {
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.cmd = ETHTOOL_GFEATURES,
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.size = ETHTOOL_DEV_FEATURE_WORDS,
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};
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struct ethtool_get_features_block features[ETHTOOL_DEV_FEATURE_WORDS];
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u32 __user *sizeaddr;
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u32 copy_size;
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int i;
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/* in case feature bits run out again */
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BUILD_BUG_ON(ETHTOOL_DEV_FEATURE_WORDS * sizeof(u32) > sizeof(netdev_features_t));
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for (i = 0; i < ETHTOOL_DEV_FEATURE_WORDS; ++i) {
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features[i].available = (u32)(dev->hw_features >> (32 * i));
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features[i].requested = (u32)(dev->wanted_features >> (32 * i));
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features[i].active = (u32)(dev->features >> (32 * i));
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features[i].never_changed =
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(u32)(NETIF_F_NEVER_CHANGE >> (32 * i));
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}
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sizeaddr = useraddr + offsetof(struct ethtool_gfeatures, size);
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if (get_user(copy_size, sizeaddr))
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return -EFAULT;
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if (copy_size > ETHTOOL_DEV_FEATURE_WORDS)
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copy_size = ETHTOOL_DEV_FEATURE_WORDS;
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if (copy_to_user(useraddr, &cmd, sizeof(cmd)))
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return -EFAULT;
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useraddr += sizeof(cmd);
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if (copy_to_user(useraddr, features,
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array_size(copy_size, sizeof(*features))))
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return -EFAULT;
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return 0;
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}
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static int ethtool_set_features(struct net_device *dev, void __user *useraddr)
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{
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struct ethtool_sfeatures cmd;
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struct ethtool_set_features_block features[ETHTOOL_DEV_FEATURE_WORDS];
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netdev_features_t wanted = 0, valid = 0;
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int i, ret = 0;
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if (copy_from_user(&cmd, useraddr, sizeof(cmd)))
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return -EFAULT;
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useraddr += sizeof(cmd);
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if (cmd.size != ETHTOOL_DEV_FEATURE_WORDS)
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return -EINVAL;
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if (copy_from_user(features, useraddr, sizeof(features)))
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return -EFAULT;
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for (i = 0; i < ETHTOOL_DEV_FEATURE_WORDS; ++i) {
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valid |= (netdev_features_t)features[i].valid << (32 * i);
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wanted |= (netdev_features_t)features[i].requested << (32 * i);
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}
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if (valid & ~NETIF_F_ETHTOOL_BITS)
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return -EINVAL;
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if (valid & ~dev->hw_features) {
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valid &= dev->hw_features;
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ret |= ETHTOOL_F_UNSUPPORTED;
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}
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dev->wanted_features &= ~valid;
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dev->wanted_features |= wanted & valid;
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__netdev_update_features(dev);
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if ((dev->wanted_features ^ dev->features) & valid)
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ret |= ETHTOOL_F_WISH;
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return ret;
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}
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static int __ethtool_get_sset_count(struct net_device *dev, int sset)
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{
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const struct ethtool_phy_ops *phy_ops = ethtool_phy_ops;
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const struct ethtool_ops *ops = dev->ethtool_ops;
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if (sset == ETH_SS_FEATURES)
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return ARRAY_SIZE(netdev_features_strings);
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if (sset == ETH_SS_RSS_HASH_FUNCS)
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return ARRAY_SIZE(rss_hash_func_strings);
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if (sset == ETH_SS_TUNABLES)
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return ARRAY_SIZE(tunable_strings);
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if (sset == ETH_SS_PHY_TUNABLES)
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return ARRAY_SIZE(phy_tunable_strings);
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if (sset == ETH_SS_PHY_STATS && dev->phydev &&
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!ops->get_ethtool_phy_stats &&
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phy_ops && phy_ops->get_sset_count)
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return phy_ops->get_sset_count(dev->phydev);
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if (sset == ETH_SS_LINK_MODES)
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return __ETHTOOL_LINK_MODE_MASK_NBITS;
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if (ops->get_sset_count && ops->get_strings)
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return ops->get_sset_count(dev, sset);
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else
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return -EOPNOTSUPP;
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}
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static void __ethtool_get_strings(struct net_device *dev,
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u32 stringset, u8 *data)
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{
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const struct ethtool_phy_ops *phy_ops = ethtool_phy_ops;
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const struct ethtool_ops *ops = dev->ethtool_ops;
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if (stringset == ETH_SS_FEATURES)
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memcpy(data, netdev_features_strings,
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sizeof(netdev_features_strings));
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else if (stringset == ETH_SS_RSS_HASH_FUNCS)
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memcpy(data, rss_hash_func_strings,
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sizeof(rss_hash_func_strings));
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else if (stringset == ETH_SS_TUNABLES)
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memcpy(data, tunable_strings, sizeof(tunable_strings));
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else if (stringset == ETH_SS_PHY_TUNABLES)
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memcpy(data, phy_tunable_strings, sizeof(phy_tunable_strings));
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else if (stringset == ETH_SS_PHY_STATS && dev->phydev &&
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!ops->get_ethtool_phy_stats && phy_ops &&
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phy_ops->get_strings)
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phy_ops->get_strings(dev->phydev, data);
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else if (stringset == ETH_SS_LINK_MODES)
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memcpy(data, link_mode_names,
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__ETHTOOL_LINK_MODE_MASK_NBITS * ETH_GSTRING_LEN);
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else
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/* ops->get_strings is valid because checked earlier */
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ops->get_strings(dev, stringset, data);
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}
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static netdev_features_t ethtool_get_feature_mask(u32 eth_cmd)
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{
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/* feature masks of legacy discrete ethtool ops */
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switch (eth_cmd) {
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case ETHTOOL_GTXCSUM:
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case ETHTOOL_STXCSUM:
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return NETIF_F_CSUM_MASK | NETIF_F_FCOE_CRC |
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NETIF_F_SCTP_CRC;
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case ETHTOOL_GRXCSUM:
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case ETHTOOL_SRXCSUM:
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return NETIF_F_RXCSUM;
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case ETHTOOL_GSG:
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case ETHTOOL_SSG:
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return NETIF_F_SG | NETIF_F_FRAGLIST;
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case ETHTOOL_GTSO:
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case ETHTOOL_STSO:
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return NETIF_F_ALL_TSO;
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case ETHTOOL_GGSO:
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case ETHTOOL_SGSO:
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return NETIF_F_GSO;
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case ETHTOOL_GGRO:
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case ETHTOOL_SGRO:
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return NETIF_F_GRO;
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default:
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BUG();
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}
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}
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static int ethtool_get_one_feature(struct net_device *dev,
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char __user *useraddr, u32 ethcmd)
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{
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netdev_features_t mask = ethtool_get_feature_mask(ethcmd);
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struct ethtool_value edata = {
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.cmd = ethcmd,
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.data = !!(dev->features & mask),
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};
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if (copy_to_user(useraddr, &edata, sizeof(edata)))
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return -EFAULT;
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return 0;
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}
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static int ethtool_set_one_feature(struct net_device *dev,
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void __user *useraddr, u32 ethcmd)
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{
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struct ethtool_value edata;
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netdev_features_t mask;
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if (copy_from_user(&edata, useraddr, sizeof(edata)))
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return -EFAULT;
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mask = ethtool_get_feature_mask(ethcmd);
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mask &= dev->hw_features;
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if (!mask)
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return -EOPNOTSUPP;
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if (edata.data)
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dev->wanted_features |= mask;
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else
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dev->wanted_features &= ~mask;
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__netdev_update_features(dev);
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return 0;
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}
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#define ETH_ALL_FLAGS (ETH_FLAG_LRO | ETH_FLAG_RXVLAN | ETH_FLAG_TXVLAN | \
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ETH_FLAG_NTUPLE | ETH_FLAG_RXHASH)
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#define ETH_ALL_FEATURES (NETIF_F_LRO | NETIF_F_HW_VLAN_CTAG_RX | \
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NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_NTUPLE | \
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NETIF_F_RXHASH)
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static u32 __ethtool_get_flags(struct net_device *dev)
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{
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u32 flags = 0;
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if (dev->features & NETIF_F_LRO)
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flags |= ETH_FLAG_LRO;
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if (dev->features & NETIF_F_HW_VLAN_CTAG_RX)
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flags |= ETH_FLAG_RXVLAN;
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if (dev->features & NETIF_F_HW_VLAN_CTAG_TX)
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flags |= ETH_FLAG_TXVLAN;
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if (dev->features & NETIF_F_NTUPLE)
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flags |= ETH_FLAG_NTUPLE;
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if (dev->features & NETIF_F_RXHASH)
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flags |= ETH_FLAG_RXHASH;
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return flags;
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}
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static int __ethtool_set_flags(struct net_device *dev, u32 data)
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{
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netdev_features_t features = 0, changed;
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if (data & ~ETH_ALL_FLAGS)
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return -EINVAL;
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if (data & ETH_FLAG_LRO)
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features |= NETIF_F_LRO;
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if (data & ETH_FLAG_RXVLAN)
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features |= NETIF_F_HW_VLAN_CTAG_RX;
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if (data & ETH_FLAG_TXVLAN)
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features |= NETIF_F_HW_VLAN_CTAG_TX;
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if (data & ETH_FLAG_NTUPLE)
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features |= NETIF_F_NTUPLE;
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if (data & ETH_FLAG_RXHASH)
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features |= NETIF_F_RXHASH;
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/* allow changing only bits set in hw_features */
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changed = (features ^ dev->features) & ETH_ALL_FEATURES;
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if (changed & ~dev->hw_features)
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return (changed & dev->hw_features) ? -EINVAL : -EOPNOTSUPP;
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dev->wanted_features =
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(dev->wanted_features & ~changed) | (features & changed);
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__netdev_update_features(dev);
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return 0;
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}
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/* Given two link masks, AND them together and save the result in dst. */
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void ethtool_intersect_link_masks(struct ethtool_link_ksettings *dst,
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struct ethtool_link_ksettings *src)
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{
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unsigned int size = BITS_TO_LONGS(__ETHTOOL_LINK_MODE_MASK_NBITS);
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unsigned int idx = 0;
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for (; idx < size; idx++) {
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dst->link_modes.supported[idx] &=
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src->link_modes.supported[idx];
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dst->link_modes.advertising[idx] &=
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src->link_modes.advertising[idx];
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}
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}
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EXPORT_SYMBOL(ethtool_intersect_link_masks);
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void ethtool_convert_legacy_u32_to_link_mode(unsigned long *dst,
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u32 legacy_u32)
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{
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linkmode_zero(dst);
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dst[0] = legacy_u32;
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}
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EXPORT_SYMBOL(ethtool_convert_legacy_u32_to_link_mode);
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/* return false if src had higher bits set. lower bits always updated. */
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bool ethtool_convert_link_mode_to_legacy_u32(u32 *legacy_u32,
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const unsigned long *src)
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{
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*legacy_u32 = src[0];
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return find_next_bit(src, __ETHTOOL_LINK_MODE_MASK_NBITS, 32) ==
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__ETHTOOL_LINK_MODE_MASK_NBITS;
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}
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EXPORT_SYMBOL(ethtool_convert_link_mode_to_legacy_u32);
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/* return false if ksettings link modes had higher bits
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* set. legacy_settings always updated (best effort)
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*/
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static bool
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convert_link_ksettings_to_legacy_settings(
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struct ethtool_cmd *legacy_settings,
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const struct ethtool_link_ksettings *link_ksettings)
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{
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bool retval = true;
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memset(legacy_settings, 0, sizeof(*legacy_settings));
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/* this also clears the deprecated fields in legacy structure:
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* __u8 transceiver;
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* __u32 maxtxpkt;
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* __u32 maxrxpkt;
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*/
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retval &= ethtool_convert_link_mode_to_legacy_u32(
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&legacy_settings->supported,
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link_ksettings->link_modes.supported);
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retval &= ethtool_convert_link_mode_to_legacy_u32(
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&legacy_settings->advertising,
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link_ksettings->link_modes.advertising);
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retval &= ethtool_convert_link_mode_to_legacy_u32(
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&legacy_settings->lp_advertising,
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link_ksettings->link_modes.lp_advertising);
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ethtool_cmd_speed_set(legacy_settings, link_ksettings->base.speed);
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legacy_settings->duplex
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= link_ksettings->base.duplex;
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legacy_settings->port
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= link_ksettings->base.port;
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legacy_settings->phy_address
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= link_ksettings->base.phy_address;
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legacy_settings->autoneg
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= link_ksettings->base.autoneg;
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legacy_settings->mdio_support
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= link_ksettings->base.mdio_support;
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legacy_settings->eth_tp_mdix
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= link_ksettings->base.eth_tp_mdix;
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legacy_settings->eth_tp_mdix_ctrl
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= link_ksettings->base.eth_tp_mdix_ctrl;
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legacy_settings->transceiver
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= link_ksettings->base.transceiver;
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return retval;
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}
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/* number of 32-bit words to store the user's link mode bitmaps */
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#define __ETHTOOL_LINK_MODE_MASK_NU32 \
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DIV_ROUND_UP(__ETHTOOL_LINK_MODE_MASK_NBITS, 32)
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/* layout of the struct passed from/to userland */
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struct ethtool_link_usettings {
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struct ethtool_link_settings base;
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struct {
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__u32 supported[__ETHTOOL_LINK_MODE_MASK_NU32];
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__u32 advertising[__ETHTOOL_LINK_MODE_MASK_NU32];
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__u32 lp_advertising[__ETHTOOL_LINK_MODE_MASK_NU32];
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} link_modes;
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};
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/* Internal kernel helper to query a device ethtool_link_settings. */
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int __ethtool_get_link_ksettings(struct net_device *dev,
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struct ethtool_link_ksettings *link_ksettings)
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{
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ASSERT_RTNL();
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if (!dev->ethtool_ops->get_link_ksettings)
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return -EOPNOTSUPP;
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memset(link_ksettings, 0, sizeof(*link_ksettings));
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return dev->ethtool_ops->get_link_ksettings(dev, link_ksettings);
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}
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EXPORT_SYMBOL(__ethtool_get_link_ksettings);
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/* convert ethtool_link_usettings in user space to a kernel internal
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* ethtool_link_ksettings. return 0 on success, errno on error.
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*/
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static int load_link_ksettings_from_user(struct ethtool_link_ksettings *to,
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const void __user *from)
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{
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struct ethtool_link_usettings link_usettings;
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if (copy_from_user(&link_usettings, from, sizeof(link_usettings)))
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return -EFAULT;
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memcpy(&to->base, &link_usettings.base, sizeof(to->base));
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bitmap_from_arr32(to->link_modes.supported,
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link_usettings.link_modes.supported,
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__ETHTOOL_LINK_MODE_MASK_NBITS);
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bitmap_from_arr32(to->link_modes.advertising,
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link_usettings.link_modes.advertising,
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__ETHTOOL_LINK_MODE_MASK_NBITS);
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bitmap_from_arr32(to->link_modes.lp_advertising,
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link_usettings.link_modes.lp_advertising,
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__ETHTOOL_LINK_MODE_MASK_NBITS);
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return 0;
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}
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/* Check if the user is trying to change anything besides speed/duplex */
|
|
bool ethtool_virtdev_validate_cmd(const struct ethtool_link_ksettings *cmd)
|
|
{
|
|
struct ethtool_link_settings base2 = {};
|
|
|
|
base2.speed = cmd->base.speed;
|
|
base2.port = PORT_OTHER;
|
|
base2.duplex = cmd->base.duplex;
|
|
base2.cmd = cmd->base.cmd;
|
|
base2.link_mode_masks_nwords = cmd->base.link_mode_masks_nwords;
|
|
|
|
return !memcmp(&base2, &cmd->base, sizeof(base2)) &&
|
|
bitmap_empty(cmd->link_modes.supported,
|
|
__ETHTOOL_LINK_MODE_MASK_NBITS) &&
|
|
bitmap_empty(cmd->link_modes.lp_advertising,
|
|
__ETHTOOL_LINK_MODE_MASK_NBITS);
|
|
}
|
|
|
|
/* convert a kernel internal ethtool_link_ksettings to
|
|
* ethtool_link_usettings in user space. return 0 on success, errno on
|
|
* error.
|
|
*/
|
|
static int
|
|
store_link_ksettings_for_user(void __user *to,
|
|
const struct ethtool_link_ksettings *from)
|
|
{
|
|
struct ethtool_link_usettings link_usettings;
|
|
|
|
memcpy(&link_usettings, from, sizeof(link_usettings));
|
|
bitmap_to_arr32(link_usettings.link_modes.supported,
|
|
from->link_modes.supported,
|
|
__ETHTOOL_LINK_MODE_MASK_NBITS);
|
|
bitmap_to_arr32(link_usettings.link_modes.advertising,
|
|
from->link_modes.advertising,
|
|
__ETHTOOL_LINK_MODE_MASK_NBITS);
|
|
bitmap_to_arr32(link_usettings.link_modes.lp_advertising,
|
|
from->link_modes.lp_advertising,
|
|
__ETHTOOL_LINK_MODE_MASK_NBITS);
|
|
|
|
if (copy_to_user(to, &link_usettings, sizeof(link_usettings)))
|
|
return -EFAULT;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Query device for its ethtool_link_settings. */
|
|
static int ethtool_get_link_ksettings(struct net_device *dev,
|
|
void __user *useraddr)
|
|
{
|
|
int err = 0;
|
|
struct ethtool_link_ksettings link_ksettings;
|
|
|
|
ASSERT_RTNL();
|
|
if (!dev->ethtool_ops->get_link_ksettings)
|
|
return -EOPNOTSUPP;
|
|
|
|
/* handle bitmap nbits handshake */
|
|
if (copy_from_user(&link_ksettings.base, useraddr,
|
|
sizeof(link_ksettings.base)))
|
|
return -EFAULT;
|
|
|
|
if (__ETHTOOL_LINK_MODE_MASK_NU32
|
|
!= link_ksettings.base.link_mode_masks_nwords) {
|
|
/* wrong link mode nbits requested */
|
|
memset(&link_ksettings, 0, sizeof(link_ksettings));
|
|
link_ksettings.base.cmd = ETHTOOL_GLINKSETTINGS;
|
|
/* send back number of words required as negative val */
|
|
compiletime_assert(__ETHTOOL_LINK_MODE_MASK_NU32 <= S8_MAX,
|
|
"need too many bits for link modes!");
|
|
link_ksettings.base.link_mode_masks_nwords
|
|
= -((s8)__ETHTOOL_LINK_MODE_MASK_NU32);
|
|
|
|
/* copy the base fields back to user, not the link
|
|
* mode bitmaps
|
|
*/
|
|
if (copy_to_user(useraddr, &link_ksettings.base,
|
|
sizeof(link_ksettings.base)))
|
|
return -EFAULT;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* handshake successful: user/kernel agree on
|
|
* link_mode_masks_nwords
|
|
*/
|
|
|
|
memset(&link_ksettings, 0, sizeof(link_ksettings));
|
|
err = dev->ethtool_ops->get_link_ksettings(dev, &link_ksettings);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
/* make sure we tell the right values to user */
|
|
link_ksettings.base.cmd = ETHTOOL_GLINKSETTINGS;
|
|
link_ksettings.base.link_mode_masks_nwords
|
|
= __ETHTOOL_LINK_MODE_MASK_NU32;
|
|
link_ksettings.base.master_slave_cfg = MASTER_SLAVE_CFG_UNSUPPORTED;
|
|
link_ksettings.base.master_slave_state = MASTER_SLAVE_STATE_UNSUPPORTED;
|
|
link_ksettings.base.rate_matching = RATE_MATCH_NONE;
|
|
|
|
return store_link_ksettings_for_user(useraddr, &link_ksettings);
|
|
}
|
|
|
|
/* Update device ethtool_link_settings. */
|
|
static int ethtool_set_link_ksettings(struct net_device *dev,
|
|
void __user *useraddr)
|
|
{
|
|
struct ethtool_link_ksettings link_ksettings = {};
|
|
int err;
|
|
|
|
ASSERT_RTNL();
|
|
|
|
if (!dev->ethtool_ops->set_link_ksettings)
|
|
return -EOPNOTSUPP;
|
|
|
|
/* make sure nbits field has expected value */
|
|
if (copy_from_user(&link_ksettings.base, useraddr,
|
|
sizeof(link_ksettings.base)))
|
|
return -EFAULT;
|
|
|
|
if (__ETHTOOL_LINK_MODE_MASK_NU32
|
|
!= link_ksettings.base.link_mode_masks_nwords)
|
|
return -EINVAL;
|
|
|
|
/* copy the whole structure, now that we know it has expected
|
|
* format
|
|
*/
|
|
err = load_link_ksettings_from_user(&link_ksettings, useraddr);
|
|
if (err)
|
|
return err;
|
|
|
|
/* re-check nwords field, just in case */
|
|
if (__ETHTOOL_LINK_MODE_MASK_NU32
|
|
!= link_ksettings.base.link_mode_masks_nwords)
|
|
return -EINVAL;
|
|
|
|
if (link_ksettings.base.master_slave_cfg ||
|
|
link_ksettings.base.master_slave_state)
|
|
return -EINVAL;
|
|
|
|
err = dev->ethtool_ops->set_link_ksettings(dev, &link_ksettings);
|
|
if (err >= 0) {
|
|
ethtool_notify(dev, ETHTOOL_MSG_LINKINFO_NTF, NULL);
|
|
ethtool_notify(dev, ETHTOOL_MSG_LINKMODES_NTF, NULL);
|
|
}
|
|
return err;
|
|
}
|
|
|
|
int ethtool_virtdev_set_link_ksettings(struct net_device *dev,
|
|
const struct ethtool_link_ksettings *cmd,
|
|
u32 *dev_speed, u8 *dev_duplex)
|
|
{
|
|
u32 speed;
|
|
u8 duplex;
|
|
|
|
speed = cmd->base.speed;
|
|
duplex = cmd->base.duplex;
|
|
/* don't allow custom speed and duplex */
|
|
if (!ethtool_validate_speed(speed) ||
|
|
!ethtool_validate_duplex(duplex) ||
|
|
!ethtool_virtdev_validate_cmd(cmd))
|
|
return -EINVAL;
|
|
*dev_speed = speed;
|
|
*dev_duplex = duplex;
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(ethtool_virtdev_set_link_ksettings);
|
|
|
|
/* Query device for its ethtool_cmd settings.
|
|
*
|
|
* Backward compatibility note: for compatibility with legacy ethtool, this is
|
|
* now implemented via get_link_ksettings. When driver reports higher link mode
|
|
* bits, a kernel warning is logged once (with name of 1st driver/device) to
|
|
* recommend user to upgrade ethtool, but the command is successful (only the
|
|
* lower link mode bits reported back to user). Deprecated fields from
|
|
* ethtool_cmd (transceiver/maxrxpkt/maxtxpkt) are always set to zero.
|
|
*/
|
|
static int ethtool_get_settings(struct net_device *dev, void __user *useraddr)
|
|
{
|
|
struct ethtool_link_ksettings link_ksettings;
|
|
struct ethtool_cmd cmd;
|
|
int err;
|
|
|
|
ASSERT_RTNL();
|
|
if (!dev->ethtool_ops->get_link_ksettings)
|
|
return -EOPNOTSUPP;
|
|
|
|
memset(&link_ksettings, 0, sizeof(link_ksettings));
|
|
err = dev->ethtool_ops->get_link_ksettings(dev, &link_ksettings);
|
|
if (err < 0)
|
|
return err;
|
|
convert_link_ksettings_to_legacy_settings(&cmd, &link_ksettings);
|
|
|
|
/* send a sensible cmd tag back to user */
|
|
cmd.cmd = ETHTOOL_GSET;
|
|
|
|
if (copy_to_user(useraddr, &cmd, sizeof(cmd)))
|
|
return -EFAULT;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Update device link settings with given ethtool_cmd.
|
|
*
|
|
* Backward compatibility note: for compatibility with legacy ethtool, this is
|
|
* now always implemented via set_link_settings. When user's request updates
|
|
* deprecated ethtool_cmd fields (transceiver/maxrxpkt/maxtxpkt), a kernel
|
|
* warning is logged once (with name of 1st driver/device) to recommend user to
|
|
* upgrade ethtool, and the request is rejected.
|
|
*/
|
|
static int ethtool_set_settings(struct net_device *dev, void __user *useraddr)
|
|
{
|
|
struct ethtool_link_ksettings link_ksettings;
|
|
struct ethtool_cmd cmd;
|
|
int ret;
|
|
|
|
ASSERT_RTNL();
|
|
|
|
if (copy_from_user(&cmd, useraddr, sizeof(cmd)))
|
|
return -EFAULT;
|
|
if (!dev->ethtool_ops->set_link_ksettings)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (!convert_legacy_settings_to_link_ksettings(&link_ksettings, &cmd))
|
|
return -EINVAL;
|
|
link_ksettings.base.link_mode_masks_nwords =
|
|
__ETHTOOL_LINK_MODE_MASK_NU32;
|
|
ret = dev->ethtool_ops->set_link_ksettings(dev, &link_ksettings);
|
|
if (ret >= 0) {
|
|
ethtool_notify(dev, ETHTOOL_MSG_LINKINFO_NTF, NULL);
|
|
ethtool_notify(dev, ETHTOOL_MSG_LINKMODES_NTF, NULL);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static int
|
|
ethtool_get_drvinfo(struct net_device *dev, struct ethtool_devlink_compat *rsp)
|
|
{
|
|
const struct ethtool_ops *ops = dev->ethtool_ops;
|
|
struct device *parent = dev->dev.parent;
|
|
|
|
rsp->info.cmd = ETHTOOL_GDRVINFO;
|
|
strscpy(rsp->info.version, init_uts_ns.name.release,
|
|
sizeof(rsp->info.version));
|
|
if (ops->get_drvinfo) {
|
|
ops->get_drvinfo(dev, &rsp->info);
|
|
if (!rsp->info.bus_info[0] && parent)
|
|
strscpy(rsp->info.bus_info, dev_name(parent),
|
|
sizeof(rsp->info.bus_info));
|
|
if (!rsp->info.driver[0] && parent && parent->driver)
|
|
strscpy(rsp->info.driver, parent->driver->name,
|
|
sizeof(rsp->info.driver));
|
|
} else if (parent && parent->driver) {
|
|
strscpy(rsp->info.bus_info, dev_name(parent),
|
|
sizeof(rsp->info.bus_info));
|
|
strscpy(rsp->info.driver, parent->driver->name,
|
|
sizeof(rsp->info.driver));
|
|
} else if (dev->rtnl_link_ops) {
|
|
strscpy(rsp->info.driver, dev->rtnl_link_ops->kind,
|
|
sizeof(rsp->info.driver));
|
|
} else {
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
/*
|
|
* this method of obtaining string set info is deprecated;
|
|
* Use ETHTOOL_GSSET_INFO instead.
|
|
*/
|
|
if (ops->get_sset_count) {
|
|
int rc;
|
|
|
|
rc = ops->get_sset_count(dev, ETH_SS_TEST);
|
|
if (rc >= 0)
|
|
rsp->info.testinfo_len = rc;
|
|
rc = ops->get_sset_count(dev, ETH_SS_STATS);
|
|
if (rc >= 0)
|
|
rsp->info.n_stats = rc;
|
|
rc = ops->get_sset_count(dev, ETH_SS_PRIV_FLAGS);
|
|
if (rc >= 0)
|
|
rsp->info.n_priv_flags = rc;
|
|
}
|
|
if (ops->get_regs_len) {
|
|
int ret = ops->get_regs_len(dev);
|
|
|
|
if (ret > 0)
|
|
rsp->info.regdump_len = ret;
|
|
}
|
|
|
|
if (ops->get_eeprom_len)
|
|
rsp->info.eedump_len = ops->get_eeprom_len(dev);
|
|
|
|
if (!rsp->info.fw_version[0])
|
|
rsp->devlink = netdev_to_devlink_get(dev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static noinline_for_stack int ethtool_get_sset_info(struct net_device *dev,
|
|
void __user *useraddr)
|
|
{
|
|
struct ethtool_sset_info info;
|
|
u64 sset_mask;
|
|
int i, idx = 0, n_bits = 0, ret, rc;
|
|
u32 *info_buf = NULL;
|
|
|
|
if (copy_from_user(&info, useraddr, sizeof(info)))
|
|
return -EFAULT;
|
|
|
|
/* store copy of mask, because we zero struct later on */
|
|
sset_mask = info.sset_mask;
|
|
if (!sset_mask)
|
|
return 0;
|
|
|
|
/* calculate size of return buffer */
|
|
n_bits = hweight64(sset_mask);
|
|
|
|
memset(&info, 0, sizeof(info));
|
|
info.cmd = ETHTOOL_GSSET_INFO;
|
|
|
|
info_buf = kcalloc(n_bits, sizeof(u32), GFP_USER);
|
|
if (!info_buf)
|
|
return -ENOMEM;
|
|
|
|
/*
|
|
* fill return buffer based on input bitmask and successful
|
|
* get_sset_count return
|
|
*/
|
|
for (i = 0; i < 64; i++) {
|
|
if (!(sset_mask & (1ULL << i)))
|
|
continue;
|
|
|
|
rc = __ethtool_get_sset_count(dev, i);
|
|
if (rc >= 0) {
|
|
info.sset_mask |= (1ULL << i);
|
|
info_buf[idx++] = rc;
|
|
}
|
|
}
|
|
|
|
ret = -EFAULT;
|
|
if (copy_to_user(useraddr, &info, sizeof(info)))
|
|
goto out;
|
|
|
|
useraddr += offsetof(struct ethtool_sset_info, data);
|
|
if (copy_to_user(useraddr, info_buf, array_size(idx, sizeof(u32))))
|
|
goto out;
|
|
|
|
ret = 0;
|
|
|
|
out:
|
|
kfree(info_buf);
|
|
return ret;
|
|
}
|
|
|
|
static noinline_for_stack int
|
|
ethtool_rxnfc_copy_from_compat(struct ethtool_rxnfc *rxnfc,
|
|
const struct compat_ethtool_rxnfc __user *useraddr,
|
|
size_t size)
|
|
{
|
|
struct compat_ethtool_rxnfc crxnfc = {};
|
|
|
|
/* We expect there to be holes between fs.m_ext and
|
|
* fs.ring_cookie and at the end of fs, but nowhere else.
|
|
* On non-x86, no conversion should be needed.
|
|
*/
|
|
BUILD_BUG_ON(!IS_ENABLED(CONFIG_X86_64) &&
|
|
sizeof(struct compat_ethtool_rxnfc) !=
|
|
sizeof(struct ethtool_rxnfc));
|
|
BUILD_BUG_ON(offsetof(struct compat_ethtool_rxnfc, fs.m_ext) +
|
|
sizeof(useraddr->fs.m_ext) !=
|
|
offsetof(struct ethtool_rxnfc, fs.m_ext) +
|
|
sizeof(rxnfc->fs.m_ext));
|
|
BUILD_BUG_ON(offsetof(struct compat_ethtool_rxnfc, fs.location) -
|
|
offsetof(struct compat_ethtool_rxnfc, fs.ring_cookie) !=
|
|
offsetof(struct ethtool_rxnfc, fs.location) -
|
|
offsetof(struct ethtool_rxnfc, fs.ring_cookie));
|
|
|
|
if (copy_from_user(&crxnfc, useraddr, min(size, sizeof(crxnfc))))
|
|
return -EFAULT;
|
|
|
|
*rxnfc = (struct ethtool_rxnfc) {
|
|
.cmd = crxnfc.cmd,
|
|
.flow_type = crxnfc.flow_type,
|
|
.data = crxnfc.data,
|
|
.fs = {
|
|
.flow_type = crxnfc.fs.flow_type,
|
|
.h_u = crxnfc.fs.h_u,
|
|
.h_ext = crxnfc.fs.h_ext,
|
|
.m_u = crxnfc.fs.m_u,
|
|
.m_ext = crxnfc.fs.m_ext,
|
|
.ring_cookie = crxnfc.fs.ring_cookie,
|
|
.location = crxnfc.fs.location,
|
|
},
|
|
.rule_cnt = crxnfc.rule_cnt,
|
|
};
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ethtool_rxnfc_copy_from_user(struct ethtool_rxnfc *rxnfc,
|
|
const void __user *useraddr,
|
|
size_t size)
|
|
{
|
|
if (compat_need_64bit_alignment_fixup())
|
|
return ethtool_rxnfc_copy_from_compat(rxnfc, useraddr, size);
|
|
|
|
if (copy_from_user(rxnfc, useraddr, size))
|
|
return -EFAULT;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ethtool_rxnfc_copy_to_compat(void __user *useraddr,
|
|
const struct ethtool_rxnfc *rxnfc,
|
|
size_t size, const u32 *rule_buf)
|
|
{
|
|
struct compat_ethtool_rxnfc crxnfc;
|
|
|
|
memset(&crxnfc, 0, sizeof(crxnfc));
|
|
crxnfc = (struct compat_ethtool_rxnfc) {
|
|
.cmd = rxnfc->cmd,
|
|
.flow_type = rxnfc->flow_type,
|
|
.data = rxnfc->data,
|
|
.fs = {
|
|
.flow_type = rxnfc->fs.flow_type,
|
|
.h_u = rxnfc->fs.h_u,
|
|
.h_ext = rxnfc->fs.h_ext,
|
|
.m_u = rxnfc->fs.m_u,
|
|
.m_ext = rxnfc->fs.m_ext,
|
|
.ring_cookie = rxnfc->fs.ring_cookie,
|
|
.location = rxnfc->fs.location,
|
|
},
|
|
.rule_cnt = rxnfc->rule_cnt,
|
|
};
|
|
|
|
if (copy_to_user(useraddr, &crxnfc, min(size, sizeof(crxnfc))))
|
|
return -EFAULT;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ethtool_rxnfc_copy_struct(u32 cmd, struct ethtool_rxnfc *info,
|
|
size_t *info_size, void __user *useraddr)
|
|
{
|
|
/* struct ethtool_rxnfc was originally defined for
|
|
* ETHTOOL_{G,S}RXFH with only the cmd, flow_type and data
|
|
* members. User-space might still be using that
|
|
* definition.
|
|
*/
|
|
if (cmd == ETHTOOL_GRXFH || cmd == ETHTOOL_SRXFH)
|
|
*info_size = (offsetof(struct ethtool_rxnfc, data) +
|
|
sizeof(info->data));
|
|
|
|
if (ethtool_rxnfc_copy_from_user(info, useraddr, *info_size))
|
|
return -EFAULT;
|
|
|
|
if ((cmd == ETHTOOL_GRXFH || cmd == ETHTOOL_SRXFH) && info->flow_type & FLOW_RSS) {
|
|
*info_size = sizeof(*info);
|
|
if (ethtool_rxnfc_copy_from_user(info, useraddr, *info_size))
|
|
return -EFAULT;
|
|
/* Since malicious users may modify the original data,
|
|
* we need to check whether FLOW_RSS is still requested.
|
|
*/
|
|
if (!(info->flow_type & FLOW_RSS))
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (info->cmd != cmd)
|
|
return -EINVAL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ethtool_rxnfc_copy_to_user(void __user *useraddr,
|
|
const struct ethtool_rxnfc *rxnfc,
|
|
size_t size, const u32 *rule_buf)
|
|
{
|
|
int ret;
|
|
|
|
if (compat_need_64bit_alignment_fixup()) {
|
|
ret = ethtool_rxnfc_copy_to_compat(useraddr, rxnfc, size,
|
|
rule_buf);
|
|
useraddr += offsetof(struct compat_ethtool_rxnfc, rule_locs);
|
|
} else {
|
|
ret = copy_to_user(useraddr, rxnfc, size);
|
|
useraddr += offsetof(struct ethtool_rxnfc, rule_locs);
|
|
}
|
|
|
|
if (ret)
|
|
return -EFAULT;
|
|
|
|
if (rule_buf) {
|
|
if (copy_to_user(useraddr, rule_buf,
|
|
rxnfc->rule_cnt * sizeof(u32)))
|
|
return -EFAULT;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static noinline_for_stack int ethtool_set_rxnfc(struct net_device *dev,
|
|
u32 cmd, void __user *useraddr)
|
|
{
|
|
const struct ethtool_ops *ops = dev->ethtool_ops;
|
|
struct ethtool_rxnfc info;
|
|
size_t info_size = sizeof(info);
|
|
int rc;
|
|
|
|
if (!ops->set_rxnfc)
|
|
return -EOPNOTSUPP;
|
|
|
|
rc = ethtool_rxnfc_copy_struct(cmd, &info, &info_size, useraddr);
|
|
if (rc)
|
|
return rc;
|
|
|
|
if (ops->get_rxfh) {
|
|
struct ethtool_rxfh_param rxfh = {};
|
|
|
|
rc = ops->get_rxfh(dev, &rxfh);
|
|
if (rc)
|
|
return rc;
|
|
|
|
/* Sanity check: if symmetric-xor is set, then:
|
|
* 1 - no other fields besides IP src/dst and/or L4 src/dst
|
|
* 2 - If src is set, dst must also be set
|
|
*/
|
|
if ((rxfh.input_xfrm & RXH_XFRM_SYM_XOR) &&
|
|
((info.data & ~(RXH_IP_SRC | RXH_IP_DST |
|
|
RXH_L4_B_0_1 | RXH_L4_B_2_3)) ||
|
|
(!!(info.data & RXH_IP_SRC) ^ !!(info.data & RXH_IP_DST)) ||
|
|
(!!(info.data & RXH_L4_B_0_1) ^ !!(info.data & RXH_L4_B_2_3))))
|
|
return -EINVAL;
|
|
}
|
|
|
|
rc = ops->set_rxnfc(dev, &info);
|
|
if (rc)
|
|
return rc;
|
|
|
|
if (cmd == ETHTOOL_SRXCLSRLINS &&
|
|
ethtool_rxnfc_copy_to_user(useraddr, &info, info_size, NULL))
|
|
return -EFAULT;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static noinline_for_stack int ethtool_get_rxnfc(struct net_device *dev,
|
|
u32 cmd, void __user *useraddr)
|
|
{
|
|
struct ethtool_rxnfc info;
|
|
size_t info_size = sizeof(info);
|
|
const struct ethtool_ops *ops = dev->ethtool_ops;
|
|
int ret;
|
|
void *rule_buf = NULL;
|
|
|
|
if (!ops->get_rxnfc)
|
|
return -EOPNOTSUPP;
|
|
|
|
ret = ethtool_rxnfc_copy_struct(cmd, &info, &info_size, useraddr);
|
|
if (ret)
|
|
return ret;
|
|
|
|
if (info.cmd == ETHTOOL_GRXCLSRLALL) {
|
|
if (info.rule_cnt > 0) {
|
|
if (info.rule_cnt <= KMALLOC_MAX_SIZE / sizeof(u32))
|
|
rule_buf = kcalloc(info.rule_cnt, sizeof(u32),
|
|
GFP_USER);
|
|
if (!rule_buf)
|
|
return -ENOMEM;
|
|
}
|
|
}
|
|
|
|
ret = ops->get_rxnfc(dev, &info, rule_buf);
|
|
if (ret < 0)
|
|
goto err_out;
|
|
|
|
ret = ethtool_rxnfc_copy_to_user(useraddr, &info, info_size, rule_buf);
|
|
err_out:
|
|
kfree(rule_buf);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int ethtool_copy_validate_indir(u32 *indir, void __user *useraddr,
|
|
struct ethtool_rxnfc *rx_rings,
|
|
u32 size)
|
|
{
|
|
int i;
|
|
|
|
if (copy_from_user(indir, useraddr, array_size(size, sizeof(indir[0]))))
|
|
return -EFAULT;
|
|
|
|
/* Validate ring indices */
|
|
for (i = 0; i < size; i++)
|
|
if (indir[i] >= rx_rings->data)
|
|
return -EINVAL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
u8 netdev_rss_key[NETDEV_RSS_KEY_LEN] __read_mostly;
|
|
|
|
void netdev_rss_key_fill(void *buffer, size_t len)
|
|
{
|
|
BUG_ON(len > sizeof(netdev_rss_key));
|
|
net_get_random_once(netdev_rss_key, sizeof(netdev_rss_key));
|
|
memcpy(buffer, netdev_rss_key, len);
|
|
}
|
|
EXPORT_SYMBOL(netdev_rss_key_fill);
|
|
|
|
static noinline_for_stack int ethtool_get_rxfh_indir(struct net_device *dev,
|
|
void __user *useraddr)
|
|
{
|
|
struct ethtool_rxfh_param rxfh = {};
|
|
u32 user_size;
|
|
int ret;
|
|
|
|
if (!dev->ethtool_ops->get_rxfh_indir_size ||
|
|
!dev->ethtool_ops->get_rxfh)
|
|
return -EOPNOTSUPP;
|
|
rxfh.indir_size = dev->ethtool_ops->get_rxfh_indir_size(dev);
|
|
if (rxfh.indir_size == 0)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (copy_from_user(&user_size,
|
|
useraddr + offsetof(struct ethtool_rxfh_indir, size),
|
|
sizeof(user_size)))
|
|
return -EFAULT;
|
|
|
|
if (copy_to_user(useraddr + offsetof(struct ethtool_rxfh_indir, size),
|
|
&rxfh.indir_size, sizeof(rxfh.indir_size)))
|
|
return -EFAULT;
|
|
|
|
/* If the user buffer size is 0, this is just a query for the
|
|
* device table size. Otherwise, if it's smaller than the
|
|
* device table size it's an error.
|
|
*/
|
|
if (user_size < rxfh.indir_size)
|
|
return user_size == 0 ? 0 : -EINVAL;
|
|
|
|
rxfh.indir = kcalloc(rxfh.indir_size, sizeof(rxfh.indir[0]), GFP_USER);
|
|
if (!rxfh.indir)
|
|
return -ENOMEM;
|
|
|
|
ret = dev->ethtool_ops->get_rxfh(dev, &rxfh);
|
|
if (ret)
|
|
goto out;
|
|
if (copy_to_user(useraddr +
|
|
offsetof(struct ethtool_rxfh_indir, ring_index[0]),
|
|
rxfh.indir, rxfh.indir_size * sizeof(*rxfh.indir)))
|
|
ret = -EFAULT;
|
|
|
|
out:
|
|
kfree(rxfh.indir);
|
|
return ret;
|
|
}
|
|
|
|
static noinline_for_stack int ethtool_set_rxfh_indir(struct net_device *dev,
|
|
void __user *useraddr)
|
|
{
|
|
const struct ethtool_ops *ops = dev->ethtool_ops;
|
|
struct ethtool_rxfh_param rxfh_dev = {};
|
|
struct netlink_ext_ack *extack = NULL;
|
|
struct ethtool_rxnfc rx_rings;
|
|
u32 user_size, i;
|
|
int ret;
|
|
u32 ringidx_offset = offsetof(struct ethtool_rxfh_indir, ring_index[0]);
|
|
|
|
if (!ops->get_rxfh_indir_size || !ops->set_rxfh ||
|
|
!ops->get_rxnfc)
|
|
return -EOPNOTSUPP;
|
|
|
|
rxfh_dev.indir_size = ops->get_rxfh_indir_size(dev);
|
|
if (rxfh_dev.indir_size == 0)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (copy_from_user(&user_size,
|
|
useraddr + offsetof(struct ethtool_rxfh_indir, size),
|
|
sizeof(user_size)))
|
|
return -EFAULT;
|
|
|
|
if (user_size != 0 && user_size != rxfh_dev.indir_size)
|
|
return -EINVAL;
|
|
|
|
rxfh_dev.indir = kcalloc(rxfh_dev.indir_size,
|
|
sizeof(rxfh_dev.indir[0]), GFP_USER);
|
|
if (!rxfh_dev.indir)
|
|
return -ENOMEM;
|
|
|
|
rx_rings.cmd = ETHTOOL_GRXRINGS;
|
|
ret = ops->get_rxnfc(dev, &rx_rings, NULL);
|
|
if (ret)
|
|
goto out;
|
|
|
|
if (user_size == 0) {
|
|
u32 *indir = rxfh_dev.indir;
|
|
|
|
for (i = 0; i < rxfh_dev.indir_size; i++)
|
|
indir[i] = ethtool_rxfh_indir_default(i, rx_rings.data);
|
|
} else {
|
|
ret = ethtool_copy_validate_indir(rxfh_dev.indir,
|
|
useraddr + ringidx_offset,
|
|
&rx_rings,
|
|
rxfh_dev.indir_size);
|
|
if (ret)
|
|
goto out;
|
|
}
|
|
|
|
rxfh_dev.hfunc = ETH_RSS_HASH_NO_CHANGE;
|
|
ret = ops->set_rxfh(dev, &rxfh_dev, extack);
|
|
if (ret)
|
|
goto out;
|
|
|
|
/* indicate whether rxfh was set to default */
|
|
if (user_size == 0)
|
|
dev->priv_flags &= ~IFF_RXFH_CONFIGURED;
|
|
else
|
|
dev->priv_flags |= IFF_RXFH_CONFIGURED;
|
|
|
|
out:
|
|
kfree(rxfh_dev.indir);
|
|
return ret;
|
|
}
|
|
|
|
static noinline_for_stack int ethtool_get_rxfh(struct net_device *dev,
|
|
void __user *useraddr)
|
|
{
|
|
const struct ethtool_ops *ops = dev->ethtool_ops;
|
|
struct ethtool_rxfh_param rxfh_dev = {};
|
|
u32 user_indir_size, user_key_size;
|
|
struct ethtool_rxfh rxfh;
|
|
u32 indir_bytes;
|
|
u8 *rss_config;
|
|
u32 total_size;
|
|
int ret;
|
|
|
|
if (!ops->get_rxfh)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (ops->get_rxfh_indir_size)
|
|
rxfh_dev.indir_size = ops->get_rxfh_indir_size(dev);
|
|
if (ops->get_rxfh_key_size)
|
|
rxfh_dev.key_size = ops->get_rxfh_key_size(dev);
|
|
|
|
if (copy_from_user(&rxfh, useraddr, sizeof(rxfh)))
|
|
return -EFAULT;
|
|
user_indir_size = rxfh.indir_size;
|
|
user_key_size = rxfh.key_size;
|
|
|
|
/* Check that reserved fields are 0 for now */
|
|
if (rxfh.rsvd8[0] || rxfh.rsvd8[1] || rxfh.rsvd32)
|
|
return -EINVAL;
|
|
/* Most drivers don't handle rss_context, check it's 0 as well */
|
|
if (rxfh.rss_context && !ops->cap_rss_ctx_supported)
|
|
return -EOPNOTSUPP;
|
|
|
|
rxfh.indir_size = rxfh_dev.indir_size;
|
|
rxfh.key_size = rxfh_dev.key_size;
|
|
if (copy_to_user(useraddr, &rxfh, sizeof(rxfh)))
|
|
return -EFAULT;
|
|
|
|
if ((user_indir_size && user_indir_size != rxfh_dev.indir_size) ||
|
|
(user_key_size && user_key_size != rxfh_dev.key_size))
|
|
return -EINVAL;
|
|
|
|
indir_bytes = user_indir_size * sizeof(rxfh_dev.indir[0]);
|
|
total_size = indir_bytes + user_key_size;
|
|
rss_config = kzalloc(total_size, GFP_USER);
|
|
if (!rss_config)
|
|
return -ENOMEM;
|
|
|
|
if (user_indir_size)
|
|
rxfh_dev.indir = (u32 *)rss_config;
|
|
|
|
if (user_key_size)
|
|
rxfh_dev.key = rss_config + indir_bytes;
|
|
|
|
rxfh_dev.rss_context = rxfh.rss_context;
|
|
|
|
ret = dev->ethtool_ops->get_rxfh(dev, &rxfh_dev);
|
|
if (ret)
|
|
goto out;
|
|
|
|
if (copy_to_user(useraddr + offsetof(struct ethtool_rxfh, hfunc),
|
|
&rxfh_dev.hfunc, sizeof(rxfh.hfunc))) {
|
|
ret = -EFAULT;
|
|
} else if (copy_to_user(useraddr +
|
|
offsetof(struct ethtool_rxfh, input_xfrm),
|
|
&rxfh_dev.input_xfrm,
|
|
sizeof(rxfh.input_xfrm))) {
|
|
ret = -EFAULT;
|
|
} else if (copy_to_user(useraddr +
|
|
offsetof(struct ethtool_rxfh, rss_config[0]),
|
|
rss_config, total_size)) {
|
|
ret = -EFAULT;
|
|
}
|
|
out:
|
|
kfree(rss_config);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static noinline_for_stack int ethtool_set_rxfh(struct net_device *dev,
|
|
void __user *useraddr)
|
|
{
|
|
u32 rss_cfg_offset = offsetof(struct ethtool_rxfh, rss_config[0]);
|
|
const struct ethtool_ops *ops = dev->ethtool_ops;
|
|
u32 dev_indir_size = 0, dev_key_size = 0, i;
|
|
struct ethtool_rxfh_param rxfh_dev = {};
|
|
struct netlink_ext_ack *extack = NULL;
|
|
struct ethtool_rxnfc rx_rings;
|
|
struct ethtool_rxfh rxfh;
|
|
u32 indir_bytes = 0;
|
|
u8 *rss_config;
|
|
int ret;
|
|
|
|
if (!ops->get_rxnfc || !ops->set_rxfh)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (ops->get_rxfh_indir_size)
|
|
dev_indir_size = ops->get_rxfh_indir_size(dev);
|
|
if (ops->get_rxfh_key_size)
|
|
dev_key_size = ops->get_rxfh_key_size(dev);
|
|
|
|
if (copy_from_user(&rxfh, useraddr, sizeof(rxfh)))
|
|
return -EFAULT;
|
|
|
|
/* Check that reserved fields are 0 for now */
|
|
if (rxfh.rsvd8[0] || rxfh.rsvd8[1] || rxfh.rsvd32)
|
|
return -EINVAL;
|
|
/* Most drivers don't handle rss_context, check it's 0 as well */
|
|
if (rxfh.rss_context && !ops->cap_rss_ctx_supported)
|
|
return -EOPNOTSUPP;
|
|
/* Check input data transformation capabilities */
|
|
if (rxfh.input_xfrm && rxfh.input_xfrm != RXH_XFRM_SYM_XOR &&
|
|
rxfh.input_xfrm != RXH_XFRM_NO_CHANGE)
|
|
return -EINVAL;
|
|
if ((rxfh.input_xfrm & RXH_XFRM_SYM_XOR) &&
|
|
!ops->cap_rss_sym_xor_supported)
|
|
return -EOPNOTSUPP;
|
|
|
|
/* If either indir, hash key or function is valid, proceed further.
|
|
* Must request at least one change: indir size, hash key, function
|
|
* or input transformation.
|
|
*/
|
|
if ((rxfh.indir_size &&
|
|
rxfh.indir_size != ETH_RXFH_INDIR_NO_CHANGE &&
|
|
rxfh.indir_size != dev_indir_size) ||
|
|
(rxfh.key_size && (rxfh.key_size != dev_key_size)) ||
|
|
(rxfh.indir_size == ETH_RXFH_INDIR_NO_CHANGE &&
|
|
rxfh.key_size == 0 && rxfh.hfunc == ETH_RSS_HASH_NO_CHANGE &&
|
|
rxfh.input_xfrm == RXH_XFRM_NO_CHANGE))
|
|
return -EINVAL;
|
|
|
|
if (rxfh.indir_size != ETH_RXFH_INDIR_NO_CHANGE)
|
|
indir_bytes = dev_indir_size * sizeof(rxfh_dev.indir[0]);
|
|
|
|
rss_config = kzalloc(indir_bytes + rxfh.key_size, GFP_USER);
|
|
if (!rss_config)
|
|
return -ENOMEM;
|
|
|
|
rx_rings.cmd = ETHTOOL_GRXRINGS;
|
|
ret = ops->get_rxnfc(dev, &rx_rings, NULL);
|
|
if (ret)
|
|
goto out;
|
|
|
|
/* rxfh.indir_size == 0 means reset the indir table to default (master
|
|
* context) or delete the context (other RSS contexts).
|
|
* rxfh.indir_size == ETH_RXFH_INDIR_NO_CHANGE means leave it unchanged.
|
|
*/
|
|
if (rxfh.indir_size &&
|
|
rxfh.indir_size != ETH_RXFH_INDIR_NO_CHANGE) {
|
|
rxfh_dev.indir = (u32 *)rss_config;
|
|
rxfh_dev.indir_size = dev_indir_size;
|
|
ret = ethtool_copy_validate_indir(rxfh_dev.indir,
|
|
useraddr + rss_cfg_offset,
|
|
&rx_rings,
|
|
rxfh.indir_size);
|
|
if (ret)
|
|
goto out;
|
|
} else if (rxfh.indir_size == 0) {
|
|
if (rxfh.rss_context == 0) {
|
|
u32 *indir;
|
|
|
|
rxfh_dev.indir = (u32 *)rss_config;
|
|
rxfh_dev.indir_size = dev_indir_size;
|
|
indir = rxfh_dev.indir;
|
|
for (i = 0; i < dev_indir_size; i++)
|
|
indir[i] = ethtool_rxfh_indir_default(i, rx_rings.data);
|
|
} else {
|
|
rxfh_dev.rss_delete = true;
|
|
}
|
|
}
|
|
|
|
if (rxfh.key_size) {
|
|
rxfh_dev.key_size = dev_key_size;
|
|
rxfh_dev.key = rss_config + indir_bytes;
|
|
if (copy_from_user(rxfh_dev.key,
|
|
useraddr + rss_cfg_offset + indir_bytes,
|
|
rxfh.key_size)) {
|
|
ret = -EFAULT;
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
rxfh_dev.hfunc = rxfh.hfunc;
|
|
rxfh_dev.rss_context = rxfh.rss_context;
|
|
rxfh_dev.input_xfrm = rxfh.input_xfrm;
|
|
|
|
ret = ops->set_rxfh(dev, &rxfh_dev, extack);
|
|
if (ret)
|
|
goto out;
|
|
|
|
if (copy_to_user(useraddr + offsetof(struct ethtool_rxfh, rss_context),
|
|
&rxfh_dev.rss_context, sizeof(rxfh_dev.rss_context)))
|
|
ret = -EFAULT;
|
|
|
|
if (!rxfh_dev.rss_context) {
|
|
/* indicate whether rxfh was set to default */
|
|
if (rxfh.indir_size == 0)
|
|
dev->priv_flags &= ~IFF_RXFH_CONFIGURED;
|
|
else if (rxfh.indir_size != ETH_RXFH_INDIR_NO_CHANGE)
|
|
dev->priv_flags |= IFF_RXFH_CONFIGURED;
|
|
}
|
|
|
|
out:
|
|
kfree(rss_config);
|
|
return ret;
|
|
}
|
|
|
|
static int ethtool_get_regs(struct net_device *dev, char __user *useraddr)
|
|
{
|
|
struct ethtool_regs regs;
|
|
const struct ethtool_ops *ops = dev->ethtool_ops;
|
|
void *regbuf;
|
|
int reglen, ret;
|
|
|
|
if (!ops->get_regs || !ops->get_regs_len)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (copy_from_user(®s, useraddr, sizeof(regs)))
|
|
return -EFAULT;
|
|
|
|
reglen = ops->get_regs_len(dev);
|
|
if (reglen <= 0)
|
|
return reglen;
|
|
|
|
if (regs.len > reglen)
|
|
regs.len = reglen;
|
|
|
|
regbuf = vzalloc(reglen);
|
|
if (!regbuf)
|
|
return -ENOMEM;
|
|
|
|
if (regs.len < reglen)
|
|
reglen = regs.len;
|
|
|
|
ops->get_regs(dev, ®s, regbuf);
|
|
|
|
ret = -EFAULT;
|
|
if (copy_to_user(useraddr, ®s, sizeof(regs)))
|
|
goto out;
|
|
useraddr += offsetof(struct ethtool_regs, data);
|
|
if (copy_to_user(useraddr, regbuf, reglen))
|
|
goto out;
|
|
ret = 0;
|
|
|
|
out:
|
|
vfree(regbuf);
|
|
return ret;
|
|
}
|
|
|
|
static int ethtool_reset(struct net_device *dev, char __user *useraddr)
|
|
{
|
|
struct ethtool_value reset;
|
|
int ret;
|
|
|
|
if (!dev->ethtool_ops->reset)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (copy_from_user(&reset, useraddr, sizeof(reset)))
|
|
return -EFAULT;
|
|
|
|
ret = dev->ethtool_ops->reset(dev, &reset.data);
|
|
if (ret)
|
|
return ret;
|
|
|
|
if (copy_to_user(useraddr, &reset, sizeof(reset)))
|
|
return -EFAULT;
|
|
return 0;
|
|
}
|
|
|
|
static int ethtool_get_wol(struct net_device *dev, char __user *useraddr)
|
|
{
|
|
struct ethtool_wolinfo wol;
|
|
|
|
if (!dev->ethtool_ops->get_wol)
|
|
return -EOPNOTSUPP;
|
|
|
|
memset(&wol, 0, sizeof(struct ethtool_wolinfo));
|
|
wol.cmd = ETHTOOL_GWOL;
|
|
dev->ethtool_ops->get_wol(dev, &wol);
|
|
|
|
if (copy_to_user(useraddr, &wol, sizeof(wol)))
|
|
return -EFAULT;
|
|
return 0;
|
|
}
|
|
|
|
static int ethtool_set_wol(struct net_device *dev, char __user *useraddr)
|
|
{
|
|
struct ethtool_wolinfo wol, cur_wol;
|
|
int ret;
|
|
|
|
if (!dev->ethtool_ops->get_wol || !dev->ethtool_ops->set_wol)
|
|
return -EOPNOTSUPP;
|
|
|
|
memset(&cur_wol, 0, sizeof(struct ethtool_wolinfo));
|
|
cur_wol.cmd = ETHTOOL_GWOL;
|
|
dev->ethtool_ops->get_wol(dev, &cur_wol);
|
|
|
|
if (copy_from_user(&wol, useraddr, sizeof(wol)))
|
|
return -EFAULT;
|
|
|
|
if (wol.wolopts & ~cur_wol.supported)
|
|
return -EINVAL;
|
|
|
|
if (wol.wolopts == cur_wol.wolopts &&
|
|
!memcmp(wol.sopass, cur_wol.sopass, sizeof(wol.sopass)))
|
|
return 0;
|
|
|
|
ret = dev->ethtool_ops->set_wol(dev, &wol);
|
|
if (ret)
|
|
return ret;
|
|
|
|
dev->wol_enabled = !!wol.wolopts;
|
|
ethtool_notify(dev, ETHTOOL_MSG_WOL_NTF, NULL);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void eee_to_keee(struct ethtool_keee *keee,
|
|
const struct ethtool_eee *eee)
|
|
{
|
|
memset(keee, 0, sizeof(*keee));
|
|
|
|
keee->eee_enabled = eee->eee_enabled;
|
|
keee->tx_lpi_enabled = eee->tx_lpi_enabled;
|
|
keee->tx_lpi_timer = eee->tx_lpi_timer;
|
|
|
|
ethtool_convert_legacy_u32_to_link_mode(keee->advertised,
|
|
eee->advertised);
|
|
}
|
|
|
|
static void keee_to_eee(struct ethtool_eee *eee,
|
|
const struct ethtool_keee *keee)
|
|
{
|
|
bool overflow;
|
|
|
|
memset(eee, 0, sizeof(*eee));
|
|
|
|
eee->eee_active = keee->eee_active;
|
|
eee->eee_enabled = keee->eee_enabled;
|
|
eee->tx_lpi_enabled = keee->tx_lpi_enabled;
|
|
eee->tx_lpi_timer = keee->tx_lpi_timer;
|
|
|
|
overflow = !ethtool_convert_link_mode_to_legacy_u32(&eee->supported,
|
|
keee->supported);
|
|
ethtool_convert_link_mode_to_legacy_u32(&eee->advertised,
|
|
keee->advertised);
|
|
ethtool_convert_link_mode_to_legacy_u32(&eee->lp_advertised,
|
|
keee->lp_advertised);
|
|
if (overflow)
|
|
pr_warn("Ethtool ioctl interface doesn't support passing EEE linkmodes beyond bit 32\n");
|
|
}
|
|
|
|
static int ethtool_get_eee(struct net_device *dev, char __user *useraddr)
|
|
{
|
|
struct ethtool_keee keee;
|
|
struct ethtool_eee eee;
|
|
int rc;
|
|
|
|
if (!dev->ethtool_ops->get_eee)
|
|
return -EOPNOTSUPP;
|
|
|
|
memset(&keee, 0, sizeof(keee));
|
|
rc = dev->ethtool_ops->get_eee(dev, &keee);
|
|
if (rc)
|
|
return rc;
|
|
|
|
keee_to_eee(&eee, &keee);
|
|
if (copy_to_user(useraddr, &eee, sizeof(eee)))
|
|
return -EFAULT;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ethtool_set_eee(struct net_device *dev, char __user *useraddr)
|
|
{
|
|
struct ethtool_keee keee;
|
|
struct ethtool_eee eee;
|
|
int ret;
|
|
|
|
if (!dev->ethtool_ops->set_eee)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (copy_from_user(&eee, useraddr, sizeof(eee)))
|
|
return -EFAULT;
|
|
|
|
eee_to_keee(&keee, &eee);
|
|
ret = dev->ethtool_ops->set_eee(dev, &keee);
|
|
if (!ret)
|
|
ethtool_notify(dev, ETHTOOL_MSG_EEE_NTF, NULL);
|
|
return ret;
|
|
}
|
|
|
|
static int ethtool_nway_reset(struct net_device *dev)
|
|
{
|
|
if (!dev->ethtool_ops->nway_reset)
|
|
return -EOPNOTSUPP;
|
|
|
|
return dev->ethtool_ops->nway_reset(dev);
|
|
}
|
|
|
|
static int ethtool_get_link(struct net_device *dev, char __user *useraddr)
|
|
{
|
|
struct ethtool_value edata = { .cmd = ETHTOOL_GLINK };
|
|
int link = __ethtool_get_link(dev);
|
|
|
|
if (link < 0)
|
|
return link;
|
|
|
|
edata.data = link;
|
|
if (copy_to_user(useraddr, &edata, sizeof(edata)))
|
|
return -EFAULT;
|
|
return 0;
|
|
}
|
|
|
|
static int ethtool_get_any_eeprom(struct net_device *dev, void __user *useraddr,
|
|
int (*getter)(struct net_device *,
|
|
struct ethtool_eeprom *, u8 *),
|
|
u32 total_len)
|
|
{
|
|
struct ethtool_eeprom eeprom;
|
|
void __user *userbuf = useraddr + sizeof(eeprom);
|
|
u32 bytes_remaining;
|
|
u8 *data;
|
|
int ret = 0;
|
|
|
|
if (copy_from_user(&eeprom, useraddr, sizeof(eeprom)))
|
|
return -EFAULT;
|
|
|
|
/* Check for wrap and zero */
|
|
if (eeprom.offset + eeprom.len <= eeprom.offset)
|
|
return -EINVAL;
|
|
|
|
/* Check for exceeding total eeprom len */
|
|
if (eeprom.offset + eeprom.len > total_len)
|
|
return -EINVAL;
|
|
|
|
data = kzalloc(PAGE_SIZE, GFP_USER);
|
|
if (!data)
|
|
return -ENOMEM;
|
|
|
|
bytes_remaining = eeprom.len;
|
|
while (bytes_remaining > 0) {
|
|
eeprom.len = min(bytes_remaining, (u32)PAGE_SIZE);
|
|
|
|
ret = getter(dev, &eeprom, data);
|
|
if (ret)
|
|
break;
|
|
if (!eeprom.len) {
|
|
ret = -EIO;
|
|
break;
|
|
}
|
|
if (copy_to_user(userbuf, data, eeprom.len)) {
|
|
ret = -EFAULT;
|
|
break;
|
|
}
|
|
userbuf += eeprom.len;
|
|
eeprom.offset += eeprom.len;
|
|
bytes_remaining -= eeprom.len;
|
|
}
|
|
|
|
eeprom.len = userbuf - (useraddr + sizeof(eeprom));
|
|
eeprom.offset -= eeprom.len;
|
|
if (copy_to_user(useraddr, &eeprom, sizeof(eeprom)))
|
|
ret = -EFAULT;
|
|
|
|
kfree(data);
|
|
return ret;
|
|
}
|
|
|
|
static int ethtool_get_eeprom(struct net_device *dev, void __user *useraddr)
|
|
{
|
|
const struct ethtool_ops *ops = dev->ethtool_ops;
|
|
|
|
if (!ops->get_eeprom || !ops->get_eeprom_len ||
|
|
!ops->get_eeprom_len(dev))
|
|
return -EOPNOTSUPP;
|
|
|
|
return ethtool_get_any_eeprom(dev, useraddr, ops->get_eeprom,
|
|
ops->get_eeprom_len(dev));
|
|
}
|
|
|
|
static int ethtool_set_eeprom(struct net_device *dev, void __user *useraddr)
|
|
{
|
|
struct ethtool_eeprom eeprom;
|
|
const struct ethtool_ops *ops = dev->ethtool_ops;
|
|
void __user *userbuf = useraddr + sizeof(eeprom);
|
|
u32 bytes_remaining;
|
|
u8 *data;
|
|
int ret = 0;
|
|
|
|
if (!ops->set_eeprom || !ops->get_eeprom_len ||
|
|
!ops->get_eeprom_len(dev))
|
|
return -EOPNOTSUPP;
|
|
|
|
if (copy_from_user(&eeprom, useraddr, sizeof(eeprom)))
|
|
return -EFAULT;
|
|
|
|
/* Check for wrap and zero */
|
|
if (eeprom.offset + eeprom.len <= eeprom.offset)
|
|
return -EINVAL;
|
|
|
|
/* Check for exceeding total eeprom len */
|
|
if (eeprom.offset + eeprom.len > ops->get_eeprom_len(dev))
|
|
return -EINVAL;
|
|
|
|
data = kzalloc(PAGE_SIZE, GFP_USER);
|
|
if (!data)
|
|
return -ENOMEM;
|
|
|
|
bytes_remaining = eeprom.len;
|
|
while (bytes_remaining > 0) {
|
|
eeprom.len = min(bytes_remaining, (u32)PAGE_SIZE);
|
|
|
|
if (copy_from_user(data, userbuf, eeprom.len)) {
|
|
ret = -EFAULT;
|
|
break;
|
|
}
|
|
ret = ops->set_eeprom(dev, &eeprom, data);
|
|
if (ret)
|
|
break;
|
|
userbuf += eeprom.len;
|
|
eeprom.offset += eeprom.len;
|
|
bytes_remaining -= eeprom.len;
|
|
}
|
|
|
|
kfree(data);
|
|
return ret;
|
|
}
|
|
|
|
static noinline_for_stack int ethtool_get_coalesce(struct net_device *dev,
|
|
void __user *useraddr)
|
|
{
|
|
struct ethtool_coalesce coalesce = { .cmd = ETHTOOL_GCOALESCE };
|
|
struct kernel_ethtool_coalesce kernel_coalesce = {};
|
|
int ret;
|
|
|
|
if (!dev->ethtool_ops->get_coalesce)
|
|
return -EOPNOTSUPP;
|
|
|
|
ret = dev->ethtool_ops->get_coalesce(dev, &coalesce, &kernel_coalesce,
|
|
NULL);
|
|
if (ret)
|
|
return ret;
|
|
|
|
if (copy_to_user(useraddr, &coalesce, sizeof(coalesce)))
|
|
return -EFAULT;
|
|
return 0;
|
|
}
|
|
|
|
static bool
|
|
ethtool_set_coalesce_supported(struct net_device *dev,
|
|
struct ethtool_coalesce *coalesce)
|
|
{
|
|
u32 supported_params = dev->ethtool_ops->supported_coalesce_params;
|
|
u32 nonzero_params = 0;
|
|
|
|
if (coalesce->rx_coalesce_usecs)
|
|
nonzero_params |= ETHTOOL_COALESCE_RX_USECS;
|
|
if (coalesce->rx_max_coalesced_frames)
|
|
nonzero_params |= ETHTOOL_COALESCE_RX_MAX_FRAMES;
|
|
if (coalesce->rx_coalesce_usecs_irq)
|
|
nonzero_params |= ETHTOOL_COALESCE_RX_USECS_IRQ;
|
|
if (coalesce->rx_max_coalesced_frames_irq)
|
|
nonzero_params |= ETHTOOL_COALESCE_RX_MAX_FRAMES_IRQ;
|
|
if (coalesce->tx_coalesce_usecs)
|
|
nonzero_params |= ETHTOOL_COALESCE_TX_USECS;
|
|
if (coalesce->tx_max_coalesced_frames)
|
|
nonzero_params |= ETHTOOL_COALESCE_TX_MAX_FRAMES;
|
|
if (coalesce->tx_coalesce_usecs_irq)
|
|
nonzero_params |= ETHTOOL_COALESCE_TX_USECS_IRQ;
|
|
if (coalesce->tx_max_coalesced_frames_irq)
|
|
nonzero_params |= ETHTOOL_COALESCE_TX_MAX_FRAMES_IRQ;
|
|
if (coalesce->stats_block_coalesce_usecs)
|
|
nonzero_params |= ETHTOOL_COALESCE_STATS_BLOCK_USECS;
|
|
if (coalesce->use_adaptive_rx_coalesce)
|
|
nonzero_params |= ETHTOOL_COALESCE_USE_ADAPTIVE_RX;
|
|
if (coalesce->use_adaptive_tx_coalesce)
|
|
nonzero_params |= ETHTOOL_COALESCE_USE_ADAPTIVE_TX;
|
|
if (coalesce->pkt_rate_low)
|
|
nonzero_params |= ETHTOOL_COALESCE_PKT_RATE_LOW;
|
|
if (coalesce->rx_coalesce_usecs_low)
|
|
nonzero_params |= ETHTOOL_COALESCE_RX_USECS_LOW;
|
|
if (coalesce->rx_max_coalesced_frames_low)
|
|
nonzero_params |= ETHTOOL_COALESCE_RX_MAX_FRAMES_LOW;
|
|
if (coalesce->tx_coalesce_usecs_low)
|
|
nonzero_params |= ETHTOOL_COALESCE_TX_USECS_LOW;
|
|
if (coalesce->tx_max_coalesced_frames_low)
|
|
nonzero_params |= ETHTOOL_COALESCE_TX_MAX_FRAMES_LOW;
|
|
if (coalesce->pkt_rate_high)
|
|
nonzero_params |= ETHTOOL_COALESCE_PKT_RATE_HIGH;
|
|
if (coalesce->rx_coalesce_usecs_high)
|
|
nonzero_params |= ETHTOOL_COALESCE_RX_USECS_HIGH;
|
|
if (coalesce->rx_max_coalesced_frames_high)
|
|
nonzero_params |= ETHTOOL_COALESCE_RX_MAX_FRAMES_HIGH;
|
|
if (coalesce->tx_coalesce_usecs_high)
|
|
nonzero_params |= ETHTOOL_COALESCE_TX_USECS_HIGH;
|
|
if (coalesce->tx_max_coalesced_frames_high)
|
|
nonzero_params |= ETHTOOL_COALESCE_TX_MAX_FRAMES_HIGH;
|
|
if (coalesce->rate_sample_interval)
|
|
nonzero_params |= ETHTOOL_COALESCE_RATE_SAMPLE_INTERVAL;
|
|
|
|
return (supported_params & nonzero_params) == nonzero_params;
|
|
}
|
|
|
|
static noinline_for_stack int ethtool_set_coalesce(struct net_device *dev,
|
|
void __user *useraddr)
|
|
{
|
|
struct kernel_ethtool_coalesce kernel_coalesce = {};
|
|
struct ethtool_coalesce coalesce;
|
|
int ret;
|
|
|
|
if (!dev->ethtool_ops->set_coalesce || !dev->ethtool_ops->get_coalesce)
|
|
return -EOPNOTSUPP;
|
|
|
|
ret = dev->ethtool_ops->get_coalesce(dev, &coalesce, &kernel_coalesce,
|
|
NULL);
|
|
if (ret)
|
|
return ret;
|
|
|
|
if (copy_from_user(&coalesce, useraddr, sizeof(coalesce)))
|
|
return -EFAULT;
|
|
|
|
if (!ethtool_set_coalesce_supported(dev, &coalesce))
|
|
return -EOPNOTSUPP;
|
|
|
|
ret = dev->ethtool_ops->set_coalesce(dev, &coalesce, &kernel_coalesce,
|
|
NULL);
|
|
if (!ret)
|
|
ethtool_notify(dev, ETHTOOL_MSG_COALESCE_NTF, NULL);
|
|
return ret;
|
|
}
|
|
|
|
static int ethtool_get_ringparam(struct net_device *dev, void __user *useraddr)
|
|
{
|
|
struct ethtool_ringparam ringparam = { .cmd = ETHTOOL_GRINGPARAM };
|
|
struct kernel_ethtool_ringparam kernel_ringparam = {};
|
|
|
|
if (!dev->ethtool_ops->get_ringparam)
|
|
return -EOPNOTSUPP;
|
|
|
|
dev->ethtool_ops->get_ringparam(dev, &ringparam,
|
|
&kernel_ringparam, NULL);
|
|
|
|
if (copy_to_user(useraddr, &ringparam, sizeof(ringparam)))
|
|
return -EFAULT;
|
|
return 0;
|
|
}
|
|
|
|
static int ethtool_set_ringparam(struct net_device *dev, void __user *useraddr)
|
|
{
|
|
struct ethtool_ringparam ringparam, max = { .cmd = ETHTOOL_GRINGPARAM };
|
|
struct kernel_ethtool_ringparam kernel_ringparam;
|
|
int ret;
|
|
|
|
if (!dev->ethtool_ops->set_ringparam || !dev->ethtool_ops->get_ringparam)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (copy_from_user(&ringparam, useraddr, sizeof(ringparam)))
|
|
return -EFAULT;
|
|
|
|
dev->ethtool_ops->get_ringparam(dev, &max, &kernel_ringparam, NULL);
|
|
|
|
/* ensure new ring parameters are within the maximums */
|
|
if (ringparam.rx_pending > max.rx_max_pending ||
|
|
ringparam.rx_mini_pending > max.rx_mini_max_pending ||
|
|
ringparam.rx_jumbo_pending > max.rx_jumbo_max_pending ||
|
|
ringparam.tx_pending > max.tx_max_pending)
|
|
return -EINVAL;
|
|
|
|
ret = dev->ethtool_ops->set_ringparam(dev, &ringparam,
|
|
&kernel_ringparam, NULL);
|
|
if (!ret)
|
|
ethtool_notify(dev, ETHTOOL_MSG_RINGS_NTF, NULL);
|
|
return ret;
|
|
}
|
|
|
|
static noinline_for_stack int ethtool_get_channels(struct net_device *dev,
|
|
void __user *useraddr)
|
|
{
|
|
struct ethtool_channels channels = { .cmd = ETHTOOL_GCHANNELS };
|
|
|
|
if (!dev->ethtool_ops->get_channels)
|
|
return -EOPNOTSUPP;
|
|
|
|
dev->ethtool_ops->get_channels(dev, &channels);
|
|
|
|
if (copy_to_user(useraddr, &channels, sizeof(channels)))
|
|
return -EFAULT;
|
|
return 0;
|
|
}
|
|
|
|
static noinline_for_stack int ethtool_set_channels(struct net_device *dev,
|
|
void __user *useraddr)
|
|
{
|
|
struct ethtool_channels channels, curr = { .cmd = ETHTOOL_GCHANNELS };
|
|
u16 from_channel, to_channel;
|
|
u64 max_rxnfc_in_use;
|
|
u32 max_rxfh_in_use;
|
|
unsigned int i;
|
|
int ret;
|
|
|
|
if (!dev->ethtool_ops->set_channels || !dev->ethtool_ops->get_channels)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (copy_from_user(&channels, useraddr, sizeof(channels)))
|
|
return -EFAULT;
|
|
|
|
dev->ethtool_ops->get_channels(dev, &curr);
|
|
|
|
if (channels.rx_count == curr.rx_count &&
|
|
channels.tx_count == curr.tx_count &&
|
|
channels.combined_count == curr.combined_count &&
|
|
channels.other_count == curr.other_count)
|
|
return 0;
|
|
|
|
/* ensure new counts are within the maximums */
|
|
if (channels.rx_count > curr.max_rx ||
|
|
channels.tx_count > curr.max_tx ||
|
|
channels.combined_count > curr.max_combined ||
|
|
channels.other_count > curr.max_other)
|
|
return -EINVAL;
|
|
|
|
/* ensure there is at least one RX and one TX channel */
|
|
if (!channels.combined_count &&
|
|
(!channels.rx_count || !channels.tx_count))
|
|
return -EINVAL;
|
|
|
|
/* ensure the new Rx count fits within the configured Rx flow
|
|
* indirection table/rxnfc settings */
|
|
if (ethtool_get_max_rxnfc_channel(dev, &max_rxnfc_in_use))
|
|
max_rxnfc_in_use = 0;
|
|
if (!netif_is_rxfh_configured(dev) ||
|
|
ethtool_get_max_rxfh_channel(dev, &max_rxfh_in_use))
|
|
max_rxfh_in_use = 0;
|
|
if (channels.combined_count + channels.rx_count <=
|
|
max_t(u64, max_rxnfc_in_use, max_rxfh_in_use))
|
|
return -EINVAL;
|
|
|
|
/* Disabling channels, query zero-copy AF_XDP sockets */
|
|
from_channel = channels.combined_count +
|
|
min(channels.rx_count, channels.tx_count);
|
|
to_channel = curr.combined_count + max(curr.rx_count, curr.tx_count);
|
|
for (i = from_channel; i < to_channel; i++)
|
|
if (xsk_get_pool_from_qid(dev, i))
|
|
return -EINVAL;
|
|
|
|
ret = dev->ethtool_ops->set_channels(dev, &channels);
|
|
if (!ret)
|
|
ethtool_notify(dev, ETHTOOL_MSG_CHANNELS_NTF, NULL);
|
|
return ret;
|
|
}
|
|
|
|
static int ethtool_get_pauseparam(struct net_device *dev, void __user *useraddr)
|
|
{
|
|
struct ethtool_pauseparam pauseparam = { .cmd = ETHTOOL_GPAUSEPARAM };
|
|
|
|
if (!dev->ethtool_ops->get_pauseparam)
|
|
return -EOPNOTSUPP;
|
|
|
|
dev->ethtool_ops->get_pauseparam(dev, &pauseparam);
|
|
|
|
if (copy_to_user(useraddr, &pauseparam, sizeof(pauseparam)))
|
|
return -EFAULT;
|
|
return 0;
|
|
}
|
|
|
|
static int ethtool_set_pauseparam(struct net_device *dev, void __user *useraddr)
|
|
{
|
|
struct ethtool_pauseparam pauseparam;
|
|
int ret;
|
|
|
|
if (!dev->ethtool_ops->set_pauseparam)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (copy_from_user(&pauseparam, useraddr, sizeof(pauseparam)))
|
|
return -EFAULT;
|
|
|
|
ret = dev->ethtool_ops->set_pauseparam(dev, &pauseparam);
|
|
if (!ret)
|
|
ethtool_notify(dev, ETHTOOL_MSG_PAUSE_NTF, NULL);
|
|
return ret;
|
|
}
|
|
|
|
static int ethtool_self_test(struct net_device *dev, char __user *useraddr)
|
|
{
|
|
struct ethtool_test test;
|
|
const struct ethtool_ops *ops = dev->ethtool_ops;
|
|
u64 *data;
|
|
int ret, test_len;
|
|
|
|
if (!ops->self_test || !ops->get_sset_count)
|
|
return -EOPNOTSUPP;
|
|
|
|
test_len = ops->get_sset_count(dev, ETH_SS_TEST);
|
|
if (test_len < 0)
|
|
return test_len;
|
|
WARN_ON(test_len == 0);
|
|
|
|
if (copy_from_user(&test, useraddr, sizeof(test)))
|
|
return -EFAULT;
|
|
|
|
test.len = test_len;
|
|
data = kcalloc(test_len, sizeof(u64), GFP_USER);
|
|
if (!data)
|
|
return -ENOMEM;
|
|
|
|
netif_testing_on(dev);
|
|
ops->self_test(dev, &test, data);
|
|
netif_testing_off(dev);
|
|
|
|
ret = -EFAULT;
|
|
if (copy_to_user(useraddr, &test, sizeof(test)))
|
|
goto out;
|
|
useraddr += sizeof(test);
|
|
if (copy_to_user(useraddr, data, array_size(test.len, sizeof(u64))))
|
|
goto out;
|
|
ret = 0;
|
|
|
|
out:
|
|
kfree(data);
|
|
return ret;
|
|
}
|
|
|
|
static int ethtool_get_strings(struct net_device *dev, void __user *useraddr)
|
|
{
|
|
struct ethtool_gstrings gstrings;
|
|
u8 *data;
|
|
int ret;
|
|
|
|
if (copy_from_user(&gstrings, useraddr, sizeof(gstrings)))
|
|
return -EFAULT;
|
|
|
|
ret = __ethtool_get_sset_count(dev, gstrings.string_set);
|
|
if (ret < 0)
|
|
return ret;
|
|
if (ret > S32_MAX / ETH_GSTRING_LEN)
|
|
return -ENOMEM;
|
|
WARN_ON_ONCE(!ret);
|
|
|
|
gstrings.len = ret;
|
|
|
|
if (gstrings.len) {
|
|
data = vzalloc(array_size(gstrings.len, ETH_GSTRING_LEN));
|
|
if (!data)
|
|
return -ENOMEM;
|
|
|
|
__ethtool_get_strings(dev, gstrings.string_set, data);
|
|
} else {
|
|
data = NULL;
|
|
}
|
|
|
|
ret = -EFAULT;
|
|
if (copy_to_user(useraddr, &gstrings, sizeof(gstrings)))
|
|
goto out;
|
|
useraddr += sizeof(gstrings);
|
|
if (gstrings.len &&
|
|
copy_to_user(useraddr, data,
|
|
array_size(gstrings.len, ETH_GSTRING_LEN)))
|
|
goto out;
|
|
ret = 0;
|
|
|
|
out:
|
|
vfree(data);
|
|
return ret;
|
|
}
|
|
|
|
__printf(2, 3) void ethtool_sprintf(u8 **data, const char *fmt, ...)
|
|
{
|
|
va_list args;
|
|
|
|
va_start(args, fmt);
|
|
vsnprintf(*data, ETH_GSTRING_LEN, fmt, args);
|
|
va_end(args);
|
|
|
|
*data += ETH_GSTRING_LEN;
|
|
}
|
|
EXPORT_SYMBOL(ethtool_sprintf);
|
|
|
|
void ethtool_puts(u8 **data, const char *str)
|
|
{
|
|
strscpy(*data, str, ETH_GSTRING_LEN);
|
|
*data += ETH_GSTRING_LEN;
|
|
}
|
|
EXPORT_SYMBOL(ethtool_puts);
|
|
|
|
static int ethtool_phys_id(struct net_device *dev, void __user *useraddr)
|
|
{
|
|
struct ethtool_value id;
|
|
static bool busy;
|
|
const struct ethtool_ops *ops = dev->ethtool_ops;
|
|
netdevice_tracker dev_tracker;
|
|
int rc;
|
|
|
|
if (!ops->set_phys_id)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (busy)
|
|
return -EBUSY;
|
|
|
|
if (copy_from_user(&id, useraddr, sizeof(id)))
|
|
return -EFAULT;
|
|
|
|
rc = ops->set_phys_id(dev, ETHTOOL_ID_ACTIVE);
|
|
if (rc < 0)
|
|
return rc;
|
|
|
|
/* Drop the RTNL lock while waiting, but prevent reentry or
|
|
* removal of the device.
|
|
*/
|
|
busy = true;
|
|
netdev_hold(dev, &dev_tracker, GFP_KERNEL);
|
|
rtnl_unlock();
|
|
|
|
if (rc == 0) {
|
|
/* Driver will handle this itself */
|
|
schedule_timeout_interruptible(
|
|
id.data ? (id.data * HZ) : MAX_SCHEDULE_TIMEOUT);
|
|
} else {
|
|
/* Driver expects to be called at twice the frequency in rc */
|
|
int n = rc * 2, interval = HZ / n;
|
|
u64 count = mul_u32_u32(n, id.data);
|
|
u64 i = 0;
|
|
|
|
do {
|
|
rtnl_lock();
|
|
rc = ops->set_phys_id(dev,
|
|
(i++ & 1) ? ETHTOOL_ID_OFF : ETHTOOL_ID_ON);
|
|
rtnl_unlock();
|
|
if (rc)
|
|
break;
|
|
schedule_timeout_interruptible(interval);
|
|
} while (!signal_pending(current) && (!id.data || i < count));
|
|
}
|
|
|
|
rtnl_lock();
|
|
netdev_put(dev, &dev_tracker);
|
|
busy = false;
|
|
|
|
(void) ops->set_phys_id(dev, ETHTOOL_ID_INACTIVE);
|
|
return rc;
|
|
}
|
|
|
|
static int ethtool_get_stats(struct net_device *dev, void __user *useraddr)
|
|
{
|
|
struct ethtool_stats stats;
|
|
const struct ethtool_ops *ops = dev->ethtool_ops;
|
|
u64 *data;
|
|
int ret, n_stats;
|
|
|
|
if (!ops->get_ethtool_stats || !ops->get_sset_count)
|
|
return -EOPNOTSUPP;
|
|
|
|
n_stats = ops->get_sset_count(dev, ETH_SS_STATS);
|
|
if (n_stats < 0)
|
|
return n_stats;
|
|
if (n_stats > S32_MAX / sizeof(u64))
|
|
return -ENOMEM;
|
|
WARN_ON_ONCE(!n_stats);
|
|
if (copy_from_user(&stats, useraddr, sizeof(stats)))
|
|
return -EFAULT;
|
|
|
|
stats.n_stats = n_stats;
|
|
|
|
if (n_stats) {
|
|
data = vzalloc(array_size(n_stats, sizeof(u64)));
|
|
if (!data)
|
|
return -ENOMEM;
|
|
ops->get_ethtool_stats(dev, &stats, data);
|
|
} else {
|
|
data = NULL;
|
|
}
|
|
|
|
ret = -EFAULT;
|
|
if (copy_to_user(useraddr, &stats, sizeof(stats)))
|
|
goto out;
|
|
useraddr += sizeof(stats);
|
|
if (n_stats && copy_to_user(useraddr, data, array_size(n_stats, sizeof(u64))))
|
|
goto out;
|
|
ret = 0;
|
|
|
|
out:
|
|
vfree(data);
|
|
return ret;
|
|
}
|
|
|
|
static int ethtool_vzalloc_stats_array(int n_stats, u64 **data)
|
|
{
|
|
if (n_stats < 0)
|
|
return n_stats;
|
|
if (n_stats > S32_MAX / sizeof(u64))
|
|
return -ENOMEM;
|
|
if (WARN_ON_ONCE(!n_stats))
|
|
return -EOPNOTSUPP;
|
|
|
|
*data = vzalloc(array_size(n_stats, sizeof(u64)));
|
|
if (!*data)
|
|
return -ENOMEM;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ethtool_get_phy_stats_phydev(struct phy_device *phydev,
|
|
struct ethtool_stats *stats,
|
|
u64 **data)
|
|
{
|
|
const struct ethtool_phy_ops *phy_ops = ethtool_phy_ops;
|
|
int n_stats, ret;
|
|
|
|
if (!phy_ops || !phy_ops->get_sset_count || !phy_ops->get_stats)
|
|
return -EOPNOTSUPP;
|
|
|
|
n_stats = phy_ops->get_sset_count(phydev);
|
|
|
|
ret = ethtool_vzalloc_stats_array(n_stats, data);
|
|
if (ret)
|
|
return ret;
|
|
|
|
stats->n_stats = n_stats;
|
|
return phy_ops->get_stats(phydev, stats, *data);
|
|
}
|
|
|
|
static int ethtool_get_phy_stats_ethtool(struct net_device *dev,
|
|
struct ethtool_stats *stats,
|
|
u64 **data)
|
|
{
|
|
const struct ethtool_ops *ops = dev->ethtool_ops;
|
|
int n_stats, ret;
|
|
|
|
if (!ops || !ops->get_sset_count || ops->get_ethtool_phy_stats)
|
|
return -EOPNOTSUPP;
|
|
|
|
n_stats = ops->get_sset_count(dev, ETH_SS_PHY_STATS);
|
|
|
|
ret = ethtool_vzalloc_stats_array(n_stats, data);
|
|
if (ret)
|
|
return ret;
|
|
|
|
stats->n_stats = n_stats;
|
|
ops->get_ethtool_phy_stats(dev, stats, *data);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ethtool_get_phy_stats(struct net_device *dev, void __user *useraddr)
|
|
{
|
|
struct phy_device *phydev = dev->phydev;
|
|
struct ethtool_stats stats;
|
|
u64 *data = NULL;
|
|
int ret = -EOPNOTSUPP;
|
|
|
|
if (copy_from_user(&stats, useraddr, sizeof(stats)))
|
|
return -EFAULT;
|
|
|
|
if (phydev)
|
|
ret = ethtool_get_phy_stats_phydev(phydev, &stats, &data);
|
|
|
|
if (ret == -EOPNOTSUPP)
|
|
ret = ethtool_get_phy_stats_ethtool(dev, &stats, &data);
|
|
|
|
if (ret)
|
|
goto out;
|
|
|
|
if (copy_to_user(useraddr, &stats, sizeof(stats))) {
|
|
ret = -EFAULT;
|
|
goto out;
|
|
}
|
|
|
|
useraddr += sizeof(stats);
|
|
if (copy_to_user(useraddr, data, array_size(stats.n_stats, sizeof(u64))))
|
|
ret = -EFAULT;
|
|
|
|
out:
|
|
vfree(data);
|
|
return ret;
|
|
}
|
|
|
|
static int ethtool_get_perm_addr(struct net_device *dev, void __user *useraddr)
|
|
{
|
|
struct ethtool_perm_addr epaddr;
|
|
|
|
if (copy_from_user(&epaddr, useraddr, sizeof(epaddr)))
|
|
return -EFAULT;
|
|
|
|
if (epaddr.size < dev->addr_len)
|
|
return -ETOOSMALL;
|
|
epaddr.size = dev->addr_len;
|
|
|
|
if (copy_to_user(useraddr, &epaddr, sizeof(epaddr)))
|
|
return -EFAULT;
|
|
useraddr += sizeof(epaddr);
|
|
if (copy_to_user(useraddr, dev->perm_addr, epaddr.size))
|
|
return -EFAULT;
|
|
return 0;
|
|
}
|
|
|
|
static int ethtool_get_value(struct net_device *dev, char __user *useraddr,
|
|
u32 cmd, u32 (*actor)(struct net_device *))
|
|
{
|
|
struct ethtool_value edata = { .cmd = cmd };
|
|
|
|
if (!actor)
|
|
return -EOPNOTSUPP;
|
|
|
|
edata.data = actor(dev);
|
|
|
|
if (copy_to_user(useraddr, &edata, sizeof(edata)))
|
|
return -EFAULT;
|
|
return 0;
|
|
}
|
|
|
|
static int ethtool_set_value_void(struct net_device *dev, char __user *useraddr,
|
|
void (*actor)(struct net_device *, u32))
|
|
{
|
|
struct ethtool_value edata;
|
|
|
|
if (!actor)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (copy_from_user(&edata, useraddr, sizeof(edata)))
|
|
return -EFAULT;
|
|
|
|
actor(dev, edata.data);
|
|
return 0;
|
|
}
|
|
|
|
static int ethtool_set_value(struct net_device *dev, char __user *useraddr,
|
|
int (*actor)(struct net_device *, u32))
|
|
{
|
|
struct ethtool_value edata;
|
|
|
|
if (!actor)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (copy_from_user(&edata, useraddr, sizeof(edata)))
|
|
return -EFAULT;
|
|
|
|
return actor(dev, edata.data);
|
|
}
|
|
|
|
static int
|
|
ethtool_flash_device(struct net_device *dev, struct ethtool_devlink_compat *req)
|
|
{
|
|
if (!dev->ethtool_ops->flash_device) {
|
|
req->devlink = netdev_to_devlink_get(dev);
|
|
return 0;
|
|
}
|
|
|
|
return dev->ethtool_ops->flash_device(dev, &req->efl);
|
|
}
|
|
|
|
static int ethtool_set_dump(struct net_device *dev,
|
|
void __user *useraddr)
|
|
{
|
|
struct ethtool_dump dump;
|
|
|
|
if (!dev->ethtool_ops->set_dump)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (copy_from_user(&dump, useraddr, sizeof(dump)))
|
|
return -EFAULT;
|
|
|
|
return dev->ethtool_ops->set_dump(dev, &dump);
|
|
}
|
|
|
|
static int ethtool_get_dump_flag(struct net_device *dev,
|
|
void __user *useraddr)
|
|
{
|
|
int ret;
|
|
struct ethtool_dump dump;
|
|
const struct ethtool_ops *ops = dev->ethtool_ops;
|
|
|
|
if (!ops->get_dump_flag)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (copy_from_user(&dump, useraddr, sizeof(dump)))
|
|
return -EFAULT;
|
|
|
|
ret = ops->get_dump_flag(dev, &dump);
|
|
if (ret)
|
|
return ret;
|
|
|
|
if (copy_to_user(useraddr, &dump, sizeof(dump)))
|
|
return -EFAULT;
|
|
return 0;
|
|
}
|
|
|
|
static int ethtool_get_dump_data(struct net_device *dev,
|
|
void __user *useraddr)
|
|
{
|
|
int ret;
|
|
__u32 len;
|
|
struct ethtool_dump dump, tmp;
|
|
const struct ethtool_ops *ops = dev->ethtool_ops;
|
|
void *data = NULL;
|
|
|
|
if (!ops->get_dump_data || !ops->get_dump_flag)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (copy_from_user(&dump, useraddr, sizeof(dump)))
|
|
return -EFAULT;
|
|
|
|
memset(&tmp, 0, sizeof(tmp));
|
|
tmp.cmd = ETHTOOL_GET_DUMP_FLAG;
|
|
ret = ops->get_dump_flag(dev, &tmp);
|
|
if (ret)
|
|
return ret;
|
|
|
|
len = min(tmp.len, dump.len);
|
|
if (!len)
|
|
return -EFAULT;
|
|
|
|
/* Don't ever let the driver think there's more space available
|
|
* than it requested with .get_dump_flag().
|
|
*/
|
|
dump.len = len;
|
|
|
|
/* Always allocate enough space to hold the whole thing so that the
|
|
* driver does not need to check the length and bother with partial
|
|
* dumping.
|
|
*/
|
|
data = vzalloc(tmp.len);
|
|
if (!data)
|
|
return -ENOMEM;
|
|
ret = ops->get_dump_data(dev, &dump, data);
|
|
if (ret)
|
|
goto out;
|
|
|
|
/* There are two sane possibilities:
|
|
* 1. The driver's .get_dump_data() does not touch dump.len.
|
|
* 2. Or it may set dump.len to how much it really writes, which
|
|
* should be tmp.len (or len if it can do a partial dump).
|
|
* In any case respond to userspace with the actual length of data
|
|
* it's receiving.
|
|
*/
|
|
WARN_ON(dump.len != len && dump.len != tmp.len);
|
|
dump.len = len;
|
|
|
|
if (copy_to_user(useraddr, &dump, sizeof(dump))) {
|
|
ret = -EFAULT;
|
|
goto out;
|
|
}
|
|
useraddr += offsetof(struct ethtool_dump, data);
|
|
if (copy_to_user(useraddr, data, len))
|
|
ret = -EFAULT;
|
|
out:
|
|
vfree(data);
|
|
return ret;
|
|
}
|
|
|
|
static int ethtool_get_ts_info(struct net_device *dev, void __user *useraddr)
|
|
{
|
|
struct ethtool_ts_info info;
|
|
int err;
|
|
|
|
err = __ethtool_get_ts_info(dev, &info);
|
|
if (err)
|
|
return err;
|
|
|
|
if (copy_to_user(useraddr, &info, sizeof(info)))
|
|
return -EFAULT;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int ethtool_get_module_info_call(struct net_device *dev,
|
|
struct ethtool_modinfo *modinfo)
|
|
{
|
|
const struct ethtool_ops *ops = dev->ethtool_ops;
|
|
struct phy_device *phydev = dev->phydev;
|
|
|
|
if (dev->sfp_bus)
|
|
return sfp_get_module_info(dev->sfp_bus, modinfo);
|
|
|
|
if (phydev && phydev->drv && phydev->drv->module_info)
|
|
return phydev->drv->module_info(phydev, modinfo);
|
|
|
|
if (ops->get_module_info)
|
|
return ops->get_module_info(dev, modinfo);
|
|
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
static int ethtool_get_module_info(struct net_device *dev,
|
|
void __user *useraddr)
|
|
{
|
|
int ret;
|
|
struct ethtool_modinfo modinfo;
|
|
|
|
if (copy_from_user(&modinfo, useraddr, sizeof(modinfo)))
|
|
return -EFAULT;
|
|
|
|
ret = ethtool_get_module_info_call(dev, &modinfo);
|
|
if (ret)
|
|
return ret;
|
|
|
|
if (copy_to_user(useraddr, &modinfo, sizeof(modinfo)))
|
|
return -EFAULT;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int ethtool_get_module_eeprom_call(struct net_device *dev,
|
|
struct ethtool_eeprom *ee, u8 *data)
|
|
{
|
|
const struct ethtool_ops *ops = dev->ethtool_ops;
|
|
struct phy_device *phydev = dev->phydev;
|
|
|
|
if (dev->sfp_bus)
|
|
return sfp_get_module_eeprom(dev->sfp_bus, ee, data);
|
|
|
|
if (phydev && phydev->drv && phydev->drv->module_eeprom)
|
|
return phydev->drv->module_eeprom(phydev, ee, data);
|
|
|
|
if (ops->get_module_eeprom)
|
|
return ops->get_module_eeprom(dev, ee, data);
|
|
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
static int ethtool_get_module_eeprom(struct net_device *dev,
|
|
void __user *useraddr)
|
|
{
|
|
int ret;
|
|
struct ethtool_modinfo modinfo;
|
|
|
|
ret = ethtool_get_module_info_call(dev, &modinfo);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return ethtool_get_any_eeprom(dev, useraddr,
|
|
ethtool_get_module_eeprom_call,
|
|
modinfo.eeprom_len);
|
|
}
|
|
|
|
static int ethtool_tunable_valid(const struct ethtool_tunable *tuna)
|
|
{
|
|
switch (tuna->id) {
|
|
case ETHTOOL_RX_COPYBREAK:
|
|
case ETHTOOL_TX_COPYBREAK:
|
|
case ETHTOOL_TX_COPYBREAK_BUF_SIZE:
|
|
if (tuna->len != sizeof(u32) ||
|
|
tuna->type_id != ETHTOOL_TUNABLE_U32)
|
|
return -EINVAL;
|
|
break;
|
|
case ETHTOOL_PFC_PREVENTION_TOUT:
|
|
if (tuna->len != sizeof(u16) ||
|
|
tuna->type_id != ETHTOOL_TUNABLE_U16)
|
|
return -EINVAL;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ethtool_get_tunable(struct net_device *dev, void __user *useraddr)
|
|
{
|
|
int ret;
|
|
struct ethtool_tunable tuna;
|
|
const struct ethtool_ops *ops = dev->ethtool_ops;
|
|
void *data;
|
|
|
|
if (!ops->get_tunable)
|
|
return -EOPNOTSUPP;
|
|
if (copy_from_user(&tuna, useraddr, sizeof(tuna)))
|
|
return -EFAULT;
|
|
ret = ethtool_tunable_valid(&tuna);
|
|
if (ret)
|
|
return ret;
|
|
data = kzalloc(tuna.len, GFP_USER);
|
|
if (!data)
|
|
return -ENOMEM;
|
|
ret = ops->get_tunable(dev, &tuna, data);
|
|
if (ret)
|
|
goto out;
|
|
useraddr += sizeof(tuna);
|
|
ret = -EFAULT;
|
|
if (copy_to_user(useraddr, data, tuna.len))
|
|
goto out;
|
|
ret = 0;
|
|
|
|
out:
|
|
kfree(data);
|
|
return ret;
|
|
}
|
|
|
|
static int ethtool_set_tunable(struct net_device *dev, void __user *useraddr)
|
|
{
|
|
int ret;
|
|
struct ethtool_tunable tuna;
|
|
const struct ethtool_ops *ops = dev->ethtool_ops;
|
|
void *data;
|
|
|
|
if (!ops->set_tunable)
|
|
return -EOPNOTSUPP;
|
|
if (copy_from_user(&tuna, useraddr, sizeof(tuna)))
|
|
return -EFAULT;
|
|
ret = ethtool_tunable_valid(&tuna);
|
|
if (ret)
|
|
return ret;
|
|
useraddr += sizeof(tuna);
|
|
data = memdup_user(useraddr, tuna.len);
|
|
if (IS_ERR(data))
|
|
return PTR_ERR(data);
|
|
ret = ops->set_tunable(dev, &tuna, data);
|
|
|
|
kfree(data);
|
|
return ret;
|
|
}
|
|
|
|
static noinline_for_stack int
|
|
ethtool_get_per_queue_coalesce(struct net_device *dev,
|
|
void __user *useraddr,
|
|
struct ethtool_per_queue_op *per_queue_opt)
|
|
{
|
|
u32 bit;
|
|
int ret;
|
|
DECLARE_BITMAP(queue_mask, MAX_NUM_QUEUE);
|
|
|
|
if (!dev->ethtool_ops->get_per_queue_coalesce)
|
|
return -EOPNOTSUPP;
|
|
|
|
useraddr += sizeof(*per_queue_opt);
|
|
|
|
bitmap_from_arr32(queue_mask, per_queue_opt->queue_mask,
|
|
MAX_NUM_QUEUE);
|
|
|
|
for_each_set_bit(bit, queue_mask, MAX_NUM_QUEUE) {
|
|
struct ethtool_coalesce coalesce = { .cmd = ETHTOOL_GCOALESCE };
|
|
|
|
ret = dev->ethtool_ops->get_per_queue_coalesce(dev, bit, &coalesce);
|
|
if (ret != 0)
|
|
return ret;
|
|
if (copy_to_user(useraddr, &coalesce, sizeof(coalesce)))
|
|
return -EFAULT;
|
|
useraddr += sizeof(coalesce);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static noinline_for_stack int
|
|
ethtool_set_per_queue_coalesce(struct net_device *dev,
|
|
void __user *useraddr,
|
|
struct ethtool_per_queue_op *per_queue_opt)
|
|
{
|
|
u32 bit;
|
|
int i, ret = 0;
|
|
int n_queue;
|
|
struct ethtool_coalesce *backup = NULL, *tmp = NULL;
|
|
DECLARE_BITMAP(queue_mask, MAX_NUM_QUEUE);
|
|
|
|
if ((!dev->ethtool_ops->set_per_queue_coalesce) ||
|
|
(!dev->ethtool_ops->get_per_queue_coalesce))
|
|
return -EOPNOTSUPP;
|
|
|
|
useraddr += sizeof(*per_queue_opt);
|
|
|
|
bitmap_from_arr32(queue_mask, per_queue_opt->queue_mask, MAX_NUM_QUEUE);
|
|
n_queue = bitmap_weight(queue_mask, MAX_NUM_QUEUE);
|
|
tmp = backup = kmalloc_array(n_queue, sizeof(*backup), GFP_KERNEL);
|
|
if (!backup)
|
|
return -ENOMEM;
|
|
|
|
for_each_set_bit(bit, queue_mask, MAX_NUM_QUEUE) {
|
|
struct ethtool_coalesce coalesce;
|
|
|
|
ret = dev->ethtool_ops->get_per_queue_coalesce(dev, bit, tmp);
|
|
if (ret != 0)
|
|
goto roll_back;
|
|
|
|
tmp++;
|
|
|
|
if (copy_from_user(&coalesce, useraddr, sizeof(coalesce))) {
|
|
ret = -EFAULT;
|
|
goto roll_back;
|
|
}
|
|
|
|
if (!ethtool_set_coalesce_supported(dev, &coalesce)) {
|
|
ret = -EOPNOTSUPP;
|
|
goto roll_back;
|
|
}
|
|
|
|
ret = dev->ethtool_ops->set_per_queue_coalesce(dev, bit, &coalesce);
|
|
if (ret != 0)
|
|
goto roll_back;
|
|
|
|
useraddr += sizeof(coalesce);
|
|
}
|
|
|
|
roll_back:
|
|
if (ret != 0) {
|
|
tmp = backup;
|
|
for_each_set_bit(i, queue_mask, bit) {
|
|
dev->ethtool_ops->set_per_queue_coalesce(dev, i, tmp);
|
|
tmp++;
|
|
}
|
|
}
|
|
kfree(backup);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int noinline_for_stack ethtool_set_per_queue(struct net_device *dev,
|
|
void __user *useraddr, u32 sub_cmd)
|
|
{
|
|
struct ethtool_per_queue_op per_queue_opt;
|
|
|
|
if (copy_from_user(&per_queue_opt, useraddr, sizeof(per_queue_opt)))
|
|
return -EFAULT;
|
|
|
|
if (per_queue_opt.sub_command != sub_cmd)
|
|
return -EINVAL;
|
|
|
|
switch (per_queue_opt.sub_command) {
|
|
case ETHTOOL_GCOALESCE:
|
|
return ethtool_get_per_queue_coalesce(dev, useraddr, &per_queue_opt);
|
|
case ETHTOOL_SCOALESCE:
|
|
return ethtool_set_per_queue_coalesce(dev, useraddr, &per_queue_opt);
|
|
default:
|
|
return -EOPNOTSUPP;
|
|
}
|
|
}
|
|
|
|
static int ethtool_phy_tunable_valid(const struct ethtool_tunable *tuna)
|
|
{
|
|
switch (tuna->id) {
|
|
case ETHTOOL_PHY_DOWNSHIFT:
|
|
case ETHTOOL_PHY_FAST_LINK_DOWN:
|
|
if (tuna->len != sizeof(u8) ||
|
|
tuna->type_id != ETHTOOL_TUNABLE_U8)
|
|
return -EINVAL;
|
|
break;
|
|
case ETHTOOL_PHY_EDPD:
|
|
if (tuna->len != sizeof(u16) ||
|
|
tuna->type_id != ETHTOOL_TUNABLE_U16)
|
|
return -EINVAL;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int get_phy_tunable(struct net_device *dev, void __user *useraddr)
|
|
{
|
|
struct phy_device *phydev = dev->phydev;
|
|
struct ethtool_tunable tuna;
|
|
bool phy_drv_tunable;
|
|
void *data;
|
|
int ret;
|
|
|
|
phy_drv_tunable = phydev && phydev->drv && phydev->drv->get_tunable;
|
|
if (!phy_drv_tunable && !dev->ethtool_ops->get_phy_tunable)
|
|
return -EOPNOTSUPP;
|
|
if (copy_from_user(&tuna, useraddr, sizeof(tuna)))
|
|
return -EFAULT;
|
|
ret = ethtool_phy_tunable_valid(&tuna);
|
|
if (ret)
|
|
return ret;
|
|
data = kzalloc(tuna.len, GFP_USER);
|
|
if (!data)
|
|
return -ENOMEM;
|
|
if (phy_drv_tunable) {
|
|
mutex_lock(&phydev->lock);
|
|
ret = phydev->drv->get_tunable(phydev, &tuna, data);
|
|
mutex_unlock(&phydev->lock);
|
|
} else {
|
|
ret = dev->ethtool_ops->get_phy_tunable(dev, &tuna, data);
|
|
}
|
|
if (ret)
|
|
goto out;
|
|
useraddr += sizeof(tuna);
|
|
ret = -EFAULT;
|
|
if (copy_to_user(useraddr, data, tuna.len))
|
|
goto out;
|
|
ret = 0;
|
|
|
|
out:
|
|
kfree(data);
|
|
return ret;
|
|
}
|
|
|
|
static int set_phy_tunable(struct net_device *dev, void __user *useraddr)
|
|
{
|
|
struct phy_device *phydev = dev->phydev;
|
|
struct ethtool_tunable tuna;
|
|
bool phy_drv_tunable;
|
|
void *data;
|
|
int ret;
|
|
|
|
phy_drv_tunable = phydev && phydev->drv && phydev->drv->get_tunable;
|
|
if (!phy_drv_tunable && !dev->ethtool_ops->set_phy_tunable)
|
|
return -EOPNOTSUPP;
|
|
if (copy_from_user(&tuna, useraddr, sizeof(tuna)))
|
|
return -EFAULT;
|
|
ret = ethtool_phy_tunable_valid(&tuna);
|
|
if (ret)
|
|
return ret;
|
|
useraddr += sizeof(tuna);
|
|
data = memdup_user(useraddr, tuna.len);
|
|
if (IS_ERR(data))
|
|
return PTR_ERR(data);
|
|
if (phy_drv_tunable) {
|
|
mutex_lock(&phydev->lock);
|
|
ret = phydev->drv->set_tunable(phydev, &tuna, data);
|
|
mutex_unlock(&phydev->lock);
|
|
} else {
|
|
ret = dev->ethtool_ops->set_phy_tunable(dev, &tuna, data);
|
|
}
|
|
|
|
kfree(data);
|
|
return ret;
|
|
}
|
|
|
|
static int ethtool_get_fecparam(struct net_device *dev, void __user *useraddr)
|
|
{
|
|
struct ethtool_fecparam fecparam = { .cmd = ETHTOOL_GFECPARAM };
|
|
int rc;
|
|
|
|
if (!dev->ethtool_ops->get_fecparam)
|
|
return -EOPNOTSUPP;
|
|
|
|
rc = dev->ethtool_ops->get_fecparam(dev, &fecparam);
|
|
if (rc)
|
|
return rc;
|
|
|
|
if (WARN_ON_ONCE(fecparam.reserved))
|
|
fecparam.reserved = 0;
|
|
|
|
if (copy_to_user(useraddr, &fecparam, sizeof(fecparam)))
|
|
return -EFAULT;
|
|
return 0;
|
|
}
|
|
|
|
static int ethtool_set_fecparam(struct net_device *dev, void __user *useraddr)
|
|
{
|
|
struct ethtool_fecparam fecparam;
|
|
|
|
if (!dev->ethtool_ops->set_fecparam)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (copy_from_user(&fecparam, useraddr, sizeof(fecparam)))
|
|
return -EFAULT;
|
|
|
|
if (!fecparam.fec || fecparam.fec & ETHTOOL_FEC_NONE)
|
|
return -EINVAL;
|
|
|
|
fecparam.active_fec = 0;
|
|
fecparam.reserved = 0;
|
|
|
|
return dev->ethtool_ops->set_fecparam(dev, &fecparam);
|
|
}
|
|
|
|
/* The main entry point in this file. Called from net/core/dev_ioctl.c */
|
|
|
|
static int
|
|
__dev_ethtool(struct net *net, struct ifreq *ifr, void __user *useraddr,
|
|
u32 ethcmd, struct ethtool_devlink_compat *devlink_state)
|
|
{
|
|
struct net_device *dev;
|
|
u32 sub_cmd;
|
|
int rc;
|
|
netdev_features_t old_features;
|
|
|
|
dev = __dev_get_by_name(net, ifr->ifr_name);
|
|
if (!dev)
|
|
return -ENODEV;
|
|
|
|
if (ethcmd == ETHTOOL_PERQUEUE) {
|
|
if (copy_from_user(&sub_cmd, useraddr + sizeof(ethcmd), sizeof(sub_cmd)))
|
|
return -EFAULT;
|
|
} else {
|
|
sub_cmd = ethcmd;
|
|
}
|
|
/* Allow some commands to be done by anyone */
|
|
switch (sub_cmd) {
|
|
case ETHTOOL_GSET:
|
|
case ETHTOOL_GDRVINFO:
|
|
case ETHTOOL_GMSGLVL:
|
|
case ETHTOOL_GLINK:
|
|
case ETHTOOL_GCOALESCE:
|
|
case ETHTOOL_GRINGPARAM:
|
|
case ETHTOOL_GPAUSEPARAM:
|
|
case ETHTOOL_GRXCSUM:
|
|
case ETHTOOL_GTXCSUM:
|
|
case ETHTOOL_GSG:
|
|
case ETHTOOL_GSSET_INFO:
|
|
case ETHTOOL_GSTRINGS:
|
|
case ETHTOOL_GSTATS:
|
|
case ETHTOOL_GPHYSTATS:
|
|
case ETHTOOL_GTSO:
|
|
case ETHTOOL_GPERMADDR:
|
|
case ETHTOOL_GUFO:
|
|
case ETHTOOL_GGSO:
|
|
case ETHTOOL_GGRO:
|
|
case ETHTOOL_GFLAGS:
|
|
case ETHTOOL_GPFLAGS:
|
|
case ETHTOOL_GRXFH:
|
|
case ETHTOOL_GRXRINGS:
|
|
case ETHTOOL_GRXCLSRLCNT:
|
|
case ETHTOOL_GRXCLSRULE:
|
|
case ETHTOOL_GRXCLSRLALL:
|
|
case ETHTOOL_GRXFHINDIR:
|
|
case ETHTOOL_GRSSH:
|
|
case ETHTOOL_GFEATURES:
|
|
case ETHTOOL_GCHANNELS:
|
|
case ETHTOOL_GET_TS_INFO:
|
|
case ETHTOOL_GEEE:
|
|
case ETHTOOL_GTUNABLE:
|
|
case ETHTOOL_PHY_GTUNABLE:
|
|
case ETHTOOL_GLINKSETTINGS:
|
|
case ETHTOOL_GFECPARAM:
|
|
break;
|
|
default:
|
|
if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
|
|
return -EPERM;
|
|
}
|
|
|
|
if (dev->dev.parent)
|
|
pm_runtime_get_sync(dev->dev.parent);
|
|
|
|
if (!netif_device_present(dev)) {
|
|
rc = -ENODEV;
|
|
goto out;
|
|
}
|
|
|
|
if (dev->ethtool_ops->begin) {
|
|
rc = dev->ethtool_ops->begin(dev);
|
|
if (rc < 0)
|
|
goto out;
|
|
}
|
|
old_features = dev->features;
|
|
|
|
switch (ethcmd) {
|
|
case ETHTOOL_GSET:
|
|
rc = ethtool_get_settings(dev, useraddr);
|
|
break;
|
|
case ETHTOOL_SSET:
|
|
rc = ethtool_set_settings(dev, useraddr);
|
|
break;
|
|
case ETHTOOL_GDRVINFO:
|
|
rc = ethtool_get_drvinfo(dev, devlink_state);
|
|
break;
|
|
case ETHTOOL_GREGS:
|
|
rc = ethtool_get_regs(dev, useraddr);
|
|
break;
|
|
case ETHTOOL_GWOL:
|
|
rc = ethtool_get_wol(dev, useraddr);
|
|
break;
|
|
case ETHTOOL_SWOL:
|
|
rc = ethtool_set_wol(dev, useraddr);
|
|
break;
|
|
case ETHTOOL_GMSGLVL:
|
|
rc = ethtool_get_value(dev, useraddr, ethcmd,
|
|
dev->ethtool_ops->get_msglevel);
|
|
break;
|
|
case ETHTOOL_SMSGLVL:
|
|
rc = ethtool_set_value_void(dev, useraddr,
|
|
dev->ethtool_ops->set_msglevel);
|
|
if (!rc)
|
|
ethtool_notify(dev, ETHTOOL_MSG_DEBUG_NTF, NULL);
|
|
break;
|
|
case ETHTOOL_GEEE:
|
|
rc = ethtool_get_eee(dev, useraddr);
|
|
break;
|
|
case ETHTOOL_SEEE:
|
|
rc = ethtool_set_eee(dev, useraddr);
|
|
break;
|
|
case ETHTOOL_NWAY_RST:
|
|
rc = ethtool_nway_reset(dev);
|
|
break;
|
|
case ETHTOOL_GLINK:
|
|
rc = ethtool_get_link(dev, useraddr);
|
|
break;
|
|
case ETHTOOL_GEEPROM:
|
|
rc = ethtool_get_eeprom(dev, useraddr);
|
|
break;
|
|
case ETHTOOL_SEEPROM:
|
|
rc = ethtool_set_eeprom(dev, useraddr);
|
|
break;
|
|
case ETHTOOL_GCOALESCE:
|
|
rc = ethtool_get_coalesce(dev, useraddr);
|
|
break;
|
|
case ETHTOOL_SCOALESCE:
|
|
rc = ethtool_set_coalesce(dev, useraddr);
|
|
break;
|
|
case ETHTOOL_GRINGPARAM:
|
|
rc = ethtool_get_ringparam(dev, useraddr);
|
|
break;
|
|
case ETHTOOL_SRINGPARAM:
|
|
rc = ethtool_set_ringparam(dev, useraddr);
|
|
break;
|
|
case ETHTOOL_GPAUSEPARAM:
|
|
rc = ethtool_get_pauseparam(dev, useraddr);
|
|
break;
|
|
case ETHTOOL_SPAUSEPARAM:
|
|
rc = ethtool_set_pauseparam(dev, useraddr);
|
|
break;
|
|
case ETHTOOL_TEST:
|
|
rc = ethtool_self_test(dev, useraddr);
|
|
break;
|
|
case ETHTOOL_GSTRINGS:
|
|
rc = ethtool_get_strings(dev, useraddr);
|
|
break;
|
|
case ETHTOOL_PHYS_ID:
|
|
rc = ethtool_phys_id(dev, useraddr);
|
|
break;
|
|
case ETHTOOL_GSTATS:
|
|
rc = ethtool_get_stats(dev, useraddr);
|
|
break;
|
|
case ETHTOOL_GPERMADDR:
|
|
rc = ethtool_get_perm_addr(dev, useraddr);
|
|
break;
|
|
case ETHTOOL_GFLAGS:
|
|
rc = ethtool_get_value(dev, useraddr, ethcmd,
|
|
__ethtool_get_flags);
|
|
break;
|
|
case ETHTOOL_SFLAGS:
|
|
rc = ethtool_set_value(dev, useraddr, __ethtool_set_flags);
|
|
break;
|
|
case ETHTOOL_GPFLAGS:
|
|
rc = ethtool_get_value(dev, useraddr, ethcmd,
|
|
dev->ethtool_ops->get_priv_flags);
|
|
if (!rc)
|
|
ethtool_notify(dev, ETHTOOL_MSG_PRIVFLAGS_NTF, NULL);
|
|
break;
|
|
case ETHTOOL_SPFLAGS:
|
|
rc = ethtool_set_value(dev, useraddr,
|
|
dev->ethtool_ops->set_priv_flags);
|
|
break;
|
|
case ETHTOOL_GRXFH:
|
|
case ETHTOOL_GRXRINGS:
|
|
case ETHTOOL_GRXCLSRLCNT:
|
|
case ETHTOOL_GRXCLSRULE:
|
|
case ETHTOOL_GRXCLSRLALL:
|
|
rc = ethtool_get_rxnfc(dev, ethcmd, useraddr);
|
|
break;
|
|
case ETHTOOL_SRXFH:
|
|
case ETHTOOL_SRXCLSRLDEL:
|
|
case ETHTOOL_SRXCLSRLINS:
|
|
rc = ethtool_set_rxnfc(dev, ethcmd, useraddr);
|
|
break;
|
|
case ETHTOOL_FLASHDEV:
|
|
rc = ethtool_flash_device(dev, devlink_state);
|
|
break;
|
|
case ETHTOOL_RESET:
|
|
rc = ethtool_reset(dev, useraddr);
|
|
break;
|
|
case ETHTOOL_GSSET_INFO:
|
|
rc = ethtool_get_sset_info(dev, useraddr);
|
|
break;
|
|
case ETHTOOL_GRXFHINDIR:
|
|
rc = ethtool_get_rxfh_indir(dev, useraddr);
|
|
break;
|
|
case ETHTOOL_SRXFHINDIR:
|
|
rc = ethtool_set_rxfh_indir(dev, useraddr);
|
|
break;
|
|
case ETHTOOL_GRSSH:
|
|
rc = ethtool_get_rxfh(dev, useraddr);
|
|
break;
|
|
case ETHTOOL_SRSSH:
|
|
rc = ethtool_set_rxfh(dev, useraddr);
|
|
break;
|
|
case ETHTOOL_GFEATURES:
|
|
rc = ethtool_get_features(dev, useraddr);
|
|
break;
|
|
case ETHTOOL_SFEATURES:
|
|
rc = ethtool_set_features(dev, useraddr);
|
|
break;
|
|
case ETHTOOL_GTXCSUM:
|
|
case ETHTOOL_GRXCSUM:
|
|
case ETHTOOL_GSG:
|
|
case ETHTOOL_GTSO:
|
|
case ETHTOOL_GGSO:
|
|
case ETHTOOL_GGRO:
|
|
rc = ethtool_get_one_feature(dev, useraddr, ethcmd);
|
|
break;
|
|
case ETHTOOL_STXCSUM:
|
|
case ETHTOOL_SRXCSUM:
|
|
case ETHTOOL_SSG:
|
|
case ETHTOOL_STSO:
|
|
case ETHTOOL_SGSO:
|
|
case ETHTOOL_SGRO:
|
|
rc = ethtool_set_one_feature(dev, useraddr, ethcmd);
|
|
break;
|
|
case ETHTOOL_GCHANNELS:
|
|
rc = ethtool_get_channels(dev, useraddr);
|
|
break;
|
|
case ETHTOOL_SCHANNELS:
|
|
rc = ethtool_set_channels(dev, useraddr);
|
|
break;
|
|
case ETHTOOL_SET_DUMP:
|
|
rc = ethtool_set_dump(dev, useraddr);
|
|
break;
|
|
case ETHTOOL_GET_DUMP_FLAG:
|
|
rc = ethtool_get_dump_flag(dev, useraddr);
|
|
break;
|
|
case ETHTOOL_GET_DUMP_DATA:
|
|
rc = ethtool_get_dump_data(dev, useraddr);
|
|
break;
|
|
case ETHTOOL_GET_TS_INFO:
|
|
rc = ethtool_get_ts_info(dev, useraddr);
|
|
break;
|
|
case ETHTOOL_GMODULEINFO:
|
|
rc = ethtool_get_module_info(dev, useraddr);
|
|
break;
|
|
case ETHTOOL_GMODULEEEPROM:
|
|
rc = ethtool_get_module_eeprom(dev, useraddr);
|
|
break;
|
|
case ETHTOOL_GTUNABLE:
|
|
rc = ethtool_get_tunable(dev, useraddr);
|
|
break;
|
|
case ETHTOOL_STUNABLE:
|
|
rc = ethtool_set_tunable(dev, useraddr);
|
|
break;
|
|
case ETHTOOL_GPHYSTATS:
|
|
rc = ethtool_get_phy_stats(dev, useraddr);
|
|
break;
|
|
case ETHTOOL_PERQUEUE:
|
|
rc = ethtool_set_per_queue(dev, useraddr, sub_cmd);
|
|
break;
|
|
case ETHTOOL_GLINKSETTINGS:
|
|
rc = ethtool_get_link_ksettings(dev, useraddr);
|
|
break;
|
|
case ETHTOOL_SLINKSETTINGS:
|
|
rc = ethtool_set_link_ksettings(dev, useraddr);
|
|
break;
|
|
case ETHTOOL_PHY_GTUNABLE:
|
|
rc = get_phy_tunable(dev, useraddr);
|
|
break;
|
|
case ETHTOOL_PHY_STUNABLE:
|
|
rc = set_phy_tunable(dev, useraddr);
|
|
break;
|
|
case ETHTOOL_GFECPARAM:
|
|
rc = ethtool_get_fecparam(dev, useraddr);
|
|
break;
|
|
case ETHTOOL_SFECPARAM:
|
|
rc = ethtool_set_fecparam(dev, useraddr);
|
|
break;
|
|
default:
|
|
rc = -EOPNOTSUPP;
|
|
}
|
|
|
|
if (dev->ethtool_ops->complete)
|
|
dev->ethtool_ops->complete(dev);
|
|
|
|
if (old_features != dev->features)
|
|
netdev_features_change(dev);
|
|
out:
|
|
if (dev->dev.parent)
|
|
pm_runtime_put(dev->dev.parent);
|
|
|
|
return rc;
|
|
}
|
|
|
|
int dev_ethtool(struct net *net, struct ifreq *ifr, void __user *useraddr)
|
|
{
|
|
struct ethtool_devlink_compat *state;
|
|
u32 ethcmd;
|
|
int rc;
|
|
|
|
if (copy_from_user(ðcmd, useraddr, sizeof(ethcmd)))
|
|
return -EFAULT;
|
|
|
|
state = kzalloc(sizeof(*state), GFP_KERNEL);
|
|
if (!state)
|
|
return -ENOMEM;
|
|
|
|
switch (ethcmd) {
|
|
case ETHTOOL_FLASHDEV:
|
|
if (copy_from_user(&state->efl, useraddr, sizeof(state->efl))) {
|
|
rc = -EFAULT;
|
|
goto exit_free;
|
|
}
|
|
state->efl.data[ETHTOOL_FLASH_MAX_FILENAME - 1] = 0;
|
|
break;
|
|
}
|
|
|
|
rtnl_lock();
|
|
rc = __dev_ethtool(net, ifr, useraddr, ethcmd, state);
|
|
rtnl_unlock();
|
|
if (rc)
|
|
goto exit_free;
|
|
|
|
switch (ethcmd) {
|
|
case ETHTOOL_FLASHDEV:
|
|
if (state->devlink)
|
|
rc = devlink_compat_flash_update(state->devlink,
|
|
state->efl.data);
|
|
break;
|
|
case ETHTOOL_GDRVINFO:
|
|
if (state->devlink)
|
|
devlink_compat_running_version(state->devlink,
|
|
state->info.fw_version,
|
|
sizeof(state->info.fw_version));
|
|
if (copy_to_user(useraddr, &state->info, sizeof(state->info))) {
|
|
rc = -EFAULT;
|
|
goto exit_free;
|
|
}
|
|
break;
|
|
}
|
|
|
|
exit_free:
|
|
if (state->devlink)
|
|
devlink_put(state->devlink);
|
|
kfree(state);
|
|
return rc;
|
|
}
|
|
|
|
struct ethtool_rx_flow_key {
|
|
struct flow_dissector_key_basic basic;
|
|
union {
|
|
struct flow_dissector_key_ipv4_addrs ipv4;
|
|
struct flow_dissector_key_ipv6_addrs ipv6;
|
|
};
|
|
struct flow_dissector_key_ports tp;
|
|
struct flow_dissector_key_ip ip;
|
|
struct flow_dissector_key_vlan vlan;
|
|
struct flow_dissector_key_eth_addrs eth_addrs;
|
|
} __aligned(BITS_PER_LONG / 8); /* Ensure that we can do comparisons as longs. */
|
|
|
|
struct ethtool_rx_flow_match {
|
|
struct flow_dissector dissector;
|
|
struct ethtool_rx_flow_key key;
|
|
struct ethtool_rx_flow_key mask;
|
|
};
|
|
|
|
struct ethtool_rx_flow_rule *
|
|
ethtool_rx_flow_rule_create(const struct ethtool_rx_flow_spec_input *input)
|
|
{
|
|
const struct ethtool_rx_flow_spec *fs = input->fs;
|
|
struct ethtool_rx_flow_match *match;
|
|
struct ethtool_rx_flow_rule *flow;
|
|
struct flow_action_entry *act;
|
|
|
|
flow = kzalloc(sizeof(struct ethtool_rx_flow_rule) +
|
|
sizeof(struct ethtool_rx_flow_match), GFP_KERNEL);
|
|
if (!flow)
|
|
return ERR_PTR(-ENOMEM);
|
|
|
|
/* ethtool_rx supports only one single action per rule. */
|
|
flow->rule = flow_rule_alloc(1);
|
|
if (!flow->rule) {
|
|
kfree(flow);
|
|
return ERR_PTR(-ENOMEM);
|
|
}
|
|
|
|
match = (struct ethtool_rx_flow_match *)flow->priv;
|
|
flow->rule->match.dissector = &match->dissector;
|
|
flow->rule->match.mask = &match->mask;
|
|
flow->rule->match.key = &match->key;
|
|
|
|
match->mask.basic.n_proto = htons(0xffff);
|
|
|
|
switch (fs->flow_type & ~(FLOW_EXT | FLOW_MAC_EXT | FLOW_RSS)) {
|
|
case ETHER_FLOW: {
|
|
const struct ethhdr *ether_spec, *ether_m_spec;
|
|
|
|
ether_spec = &fs->h_u.ether_spec;
|
|
ether_m_spec = &fs->m_u.ether_spec;
|
|
|
|
if (!is_zero_ether_addr(ether_m_spec->h_source)) {
|
|
ether_addr_copy(match->key.eth_addrs.src,
|
|
ether_spec->h_source);
|
|
ether_addr_copy(match->mask.eth_addrs.src,
|
|
ether_m_spec->h_source);
|
|
}
|
|
if (!is_zero_ether_addr(ether_m_spec->h_dest)) {
|
|
ether_addr_copy(match->key.eth_addrs.dst,
|
|
ether_spec->h_dest);
|
|
ether_addr_copy(match->mask.eth_addrs.dst,
|
|
ether_m_spec->h_dest);
|
|
}
|
|
if (ether_m_spec->h_proto) {
|
|
match->key.basic.n_proto = ether_spec->h_proto;
|
|
match->mask.basic.n_proto = ether_m_spec->h_proto;
|
|
}
|
|
}
|
|
break;
|
|
case TCP_V4_FLOW:
|
|
case UDP_V4_FLOW: {
|
|
const struct ethtool_tcpip4_spec *v4_spec, *v4_m_spec;
|
|
|
|
match->key.basic.n_proto = htons(ETH_P_IP);
|
|
|
|
v4_spec = &fs->h_u.tcp_ip4_spec;
|
|
v4_m_spec = &fs->m_u.tcp_ip4_spec;
|
|
|
|
if (v4_m_spec->ip4src) {
|
|
match->key.ipv4.src = v4_spec->ip4src;
|
|
match->mask.ipv4.src = v4_m_spec->ip4src;
|
|
}
|
|
if (v4_m_spec->ip4dst) {
|
|
match->key.ipv4.dst = v4_spec->ip4dst;
|
|
match->mask.ipv4.dst = v4_m_spec->ip4dst;
|
|
}
|
|
if (v4_m_spec->ip4src ||
|
|
v4_m_spec->ip4dst) {
|
|
match->dissector.used_keys |=
|
|
BIT_ULL(FLOW_DISSECTOR_KEY_IPV4_ADDRS);
|
|
match->dissector.offset[FLOW_DISSECTOR_KEY_IPV4_ADDRS] =
|
|
offsetof(struct ethtool_rx_flow_key, ipv4);
|
|
}
|
|
if (v4_m_spec->psrc) {
|
|
match->key.tp.src = v4_spec->psrc;
|
|
match->mask.tp.src = v4_m_spec->psrc;
|
|
}
|
|
if (v4_m_spec->pdst) {
|
|
match->key.tp.dst = v4_spec->pdst;
|
|
match->mask.tp.dst = v4_m_spec->pdst;
|
|
}
|
|
if (v4_m_spec->psrc ||
|
|
v4_m_spec->pdst) {
|
|
match->dissector.used_keys |=
|
|
BIT_ULL(FLOW_DISSECTOR_KEY_PORTS);
|
|
match->dissector.offset[FLOW_DISSECTOR_KEY_PORTS] =
|
|
offsetof(struct ethtool_rx_flow_key, tp);
|
|
}
|
|
if (v4_m_spec->tos) {
|
|
match->key.ip.tos = v4_spec->tos;
|
|
match->mask.ip.tos = v4_m_spec->tos;
|
|
match->dissector.used_keys |=
|
|
BIT(FLOW_DISSECTOR_KEY_IP);
|
|
match->dissector.offset[FLOW_DISSECTOR_KEY_IP] =
|
|
offsetof(struct ethtool_rx_flow_key, ip);
|
|
}
|
|
}
|
|
break;
|
|
case TCP_V6_FLOW:
|
|
case UDP_V6_FLOW: {
|
|
const struct ethtool_tcpip6_spec *v6_spec, *v6_m_spec;
|
|
|
|
match->key.basic.n_proto = htons(ETH_P_IPV6);
|
|
|
|
v6_spec = &fs->h_u.tcp_ip6_spec;
|
|
v6_m_spec = &fs->m_u.tcp_ip6_spec;
|
|
if (!ipv6_addr_any((struct in6_addr *)v6_m_spec->ip6src)) {
|
|
memcpy(&match->key.ipv6.src, v6_spec->ip6src,
|
|
sizeof(match->key.ipv6.src));
|
|
memcpy(&match->mask.ipv6.src, v6_m_spec->ip6src,
|
|
sizeof(match->mask.ipv6.src));
|
|
}
|
|
if (!ipv6_addr_any((struct in6_addr *)v6_m_spec->ip6dst)) {
|
|
memcpy(&match->key.ipv6.dst, v6_spec->ip6dst,
|
|
sizeof(match->key.ipv6.dst));
|
|
memcpy(&match->mask.ipv6.dst, v6_m_spec->ip6dst,
|
|
sizeof(match->mask.ipv6.dst));
|
|
}
|
|
if (!ipv6_addr_any((struct in6_addr *)v6_m_spec->ip6src) ||
|
|
!ipv6_addr_any((struct in6_addr *)v6_m_spec->ip6dst)) {
|
|
match->dissector.used_keys |=
|
|
BIT_ULL(FLOW_DISSECTOR_KEY_IPV6_ADDRS);
|
|
match->dissector.offset[FLOW_DISSECTOR_KEY_IPV6_ADDRS] =
|
|
offsetof(struct ethtool_rx_flow_key, ipv6);
|
|
}
|
|
if (v6_m_spec->psrc) {
|
|
match->key.tp.src = v6_spec->psrc;
|
|
match->mask.tp.src = v6_m_spec->psrc;
|
|
}
|
|
if (v6_m_spec->pdst) {
|
|
match->key.tp.dst = v6_spec->pdst;
|
|
match->mask.tp.dst = v6_m_spec->pdst;
|
|
}
|
|
if (v6_m_spec->psrc ||
|
|
v6_m_spec->pdst) {
|
|
match->dissector.used_keys |=
|
|
BIT_ULL(FLOW_DISSECTOR_KEY_PORTS);
|
|
match->dissector.offset[FLOW_DISSECTOR_KEY_PORTS] =
|
|
offsetof(struct ethtool_rx_flow_key, tp);
|
|
}
|
|
if (v6_m_spec->tclass) {
|
|
match->key.ip.tos = v6_spec->tclass;
|
|
match->mask.ip.tos = v6_m_spec->tclass;
|
|
match->dissector.used_keys |=
|
|
BIT_ULL(FLOW_DISSECTOR_KEY_IP);
|
|
match->dissector.offset[FLOW_DISSECTOR_KEY_IP] =
|
|
offsetof(struct ethtool_rx_flow_key, ip);
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
ethtool_rx_flow_rule_destroy(flow);
|
|
return ERR_PTR(-EINVAL);
|
|
}
|
|
|
|
switch (fs->flow_type & ~(FLOW_EXT | FLOW_MAC_EXT | FLOW_RSS)) {
|
|
case TCP_V4_FLOW:
|
|
case TCP_V6_FLOW:
|
|
match->key.basic.ip_proto = IPPROTO_TCP;
|
|
match->mask.basic.ip_proto = 0xff;
|
|
break;
|
|
case UDP_V4_FLOW:
|
|
case UDP_V6_FLOW:
|
|
match->key.basic.ip_proto = IPPROTO_UDP;
|
|
match->mask.basic.ip_proto = 0xff;
|
|
break;
|
|
}
|
|
|
|
match->dissector.used_keys |= BIT_ULL(FLOW_DISSECTOR_KEY_BASIC);
|
|
match->dissector.offset[FLOW_DISSECTOR_KEY_BASIC] =
|
|
offsetof(struct ethtool_rx_flow_key, basic);
|
|
|
|
if (fs->flow_type & FLOW_EXT) {
|
|
const struct ethtool_flow_ext *ext_h_spec = &fs->h_ext;
|
|
const struct ethtool_flow_ext *ext_m_spec = &fs->m_ext;
|
|
|
|
if (ext_m_spec->vlan_etype) {
|
|
match->key.vlan.vlan_tpid = ext_h_spec->vlan_etype;
|
|
match->mask.vlan.vlan_tpid = ext_m_spec->vlan_etype;
|
|
}
|
|
|
|
if (ext_m_spec->vlan_tci) {
|
|
match->key.vlan.vlan_id =
|
|
ntohs(ext_h_spec->vlan_tci) & 0x0fff;
|
|
match->mask.vlan.vlan_id =
|
|
ntohs(ext_m_spec->vlan_tci) & 0x0fff;
|
|
|
|
match->key.vlan.vlan_dei =
|
|
!!(ext_h_spec->vlan_tci & htons(0x1000));
|
|
match->mask.vlan.vlan_dei =
|
|
!!(ext_m_spec->vlan_tci & htons(0x1000));
|
|
|
|
match->key.vlan.vlan_priority =
|
|
(ntohs(ext_h_spec->vlan_tci) & 0xe000) >> 13;
|
|
match->mask.vlan.vlan_priority =
|
|
(ntohs(ext_m_spec->vlan_tci) & 0xe000) >> 13;
|
|
}
|
|
|
|
if (ext_m_spec->vlan_etype ||
|
|
ext_m_spec->vlan_tci) {
|
|
match->dissector.used_keys |=
|
|
BIT_ULL(FLOW_DISSECTOR_KEY_VLAN);
|
|
match->dissector.offset[FLOW_DISSECTOR_KEY_VLAN] =
|
|
offsetof(struct ethtool_rx_flow_key, vlan);
|
|
}
|
|
}
|
|
if (fs->flow_type & FLOW_MAC_EXT) {
|
|
const struct ethtool_flow_ext *ext_h_spec = &fs->h_ext;
|
|
const struct ethtool_flow_ext *ext_m_spec = &fs->m_ext;
|
|
|
|
memcpy(match->key.eth_addrs.dst, ext_h_spec->h_dest,
|
|
ETH_ALEN);
|
|
memcpy(match->mask.eth_addrs.dst, ext_m_spec->h_dest,
|
|
ETH_ALEN);
|
|
|
|
match->dissector.used_keys |=
|
|
BIT_ULL(FLOW_DISSECTOR_KEY_ETH_ADDRS);
|
|
match->dissector.offset[FLOW_DISSECTOR_KEY_ETH_ADDRS] =
|
|
offsetof(struct ethtool_rx_flow_key, eth_addrs);
|
|
}
|
|
|
|
act = &flow->rule->action.entries[0];
|
|
switch (fs->ring_cookie) {
|
|
case RX_CLS_FLOW_DISC:
|
|
act->id = FLOW_ACTION_DROP;
|
|
break;
|
|
case RX_CLS_FLOW_WAKE:
|
|
act->id = FLOW_ACTION_WAKE;
|
|
break;
|
|
default:
|
|
act->id = FLOW_ACTION_QUEUE;
|
|
if (fs->flow_type & FLOW_RSS)
|
|
act->queue.ctx = input->rss_ctx;
|
|
|
|
act->queue.vf = ethtool_get_flow_spec_ring_vf(fs->ring_cookie);
|
|
act->queue.index = ethtool_get_flow_spec_ring(fs->ring_cookie);
|
|
break;
|
|
}
|
|
|
|
return flow;
|
|
}
|
|
EXPORT_SYMBOL(ethtool_rx_flow_rule_create);
|
|
|
|
void ethtool_rx_flow_rule_destroy(struct ethtool_rx_flow_rule *flow)
|
|
{
|
|
kfree(flow->rule);
|
|
kfree(flow);
|
|
}
|
|
EXPORT_SYMBOL(ethtool_rx_flow_rule_destroy);
|