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Diffstat (limited to 'net/ethtool/ioctl.c')
-rw-r--r--net/ethtool/ioctl.c1478
1 files changed, 1111 insertions, 367 deletions
diff --git a/net/ethtool/ioctl.c b/net/ethtool/ioctl.c
index b5df90c981c2..fa83ddade4f8 100644
--- a/net/ethtool/ioctl.c
+++ b/net/ethtool/ioctl.c
@@ -7,6 +7,8 @@
* the information ethtool needs.
*/
+#include <linux/compat.h>
+#include <linux/etherdevice.h>
#include <linux/module.h>
#include <linux/types.h>
#include <linux/capability.h>
@@ -23,13 +25,32 @@
#include <linux/rtnetlink.h>
#include <linux/sched/signal.h>
#include <linux/net.h>
+#include <linux/pm_runtime.h>
+#include <linux/utsname.h>
#include <net/devlink.h>
+#include <net/ipv6.h>
#include <net/xdp_sock_drv.h>
#include <net/flow_offload.h>
+#include <net/netdev_lock.h>
#include <linux/ethtool_netlink.h>
-#include <generated/utsrelease.h>
#include "common.h"
+/* State held across locks and calls for commands which have devlink fallback */
+struct ethtool_devlink_compat {
+ struct devlink *devlink;
+ union {
+ struct ethtool_flash efl;
+ struct ethtool_drvinfo info;
+ };
+};
+
+static struct devlink *netdev_to_devlink_get(struct net_device *dev)
+{
+ if (!dev->devlink_port)
+ return NULL;
+ return devlink_try_get(dev->devlink_port->devlink);
+}
+
/*
* Some useful ethtool_ops methods that're device independent.
* If we find that all drivers want to do the same thing here,
@@ -38,11 +59,15 @@
u32 ethtool_op_get_link(struct net_device *dev)
{
+ /* Synchronize carrier state with link watch, see also rtnl_getlink() */
+ __linkwatch_sync_dev(dev);
+
return netif_carrier_ok(dev) ? 1 : 0;
}
EXPORT_SYMBOL(ethtool_op_get_link);
-int ethtool_op_get_ts_info(struct net_device *dev, struct ethtool_ts_info *info)
+int ethtool_op_get_ts_info(struct net_device *dev,
+ struct kernel_ethtool_ts_info *info)
{
info->so_timestamping =
SOF_TIMESTAMPING_TX_SOFTWARE |
@@ -87,7 +112,8 @@ static int ethtool_get_features(struct net_device *dev, void __user *useraddr)
if (copy_to_user(useraddr, &cmd, sizeof(cmd)))
return -EFAULT;
useraddr += sizeof(cmd);
- if (copy_to_user(useraddr, features, copy_size * sizeof(*features)))
+ if (copy_to_user(useraddr, features,
+ array_size(copy_size, sizeof(*features))))
return -EFAULT;
return 0;
@@ -135,6 +161,7 @@ static int ethtool_set_features(struct net_device *dev, void __user *useraddr)
static int __ethtool_get_sset_count(struct net_device *dev, int sset)
{
+ const struct ethtool_phy_ops *phy_ops = ethtool_phy_ops;
const struct ethtool_ops *ops = dev->ethtool_ops;
if (sset == ETH_SS_FEATURES)
@@ -150,8 +177,9 @@ static int __ethtool_get_sset_count(struct net_device *dev, int sset)
return ARRAY_SIZE(phy_tunable_strings);
if (sset == ETH_SS_PHY_STATS && dev->phydev &&
- !ops->get_ethtool_phy_stats)
- return phy_ethtool_get_sset_count(dev->phydev);
+ !ops->get_ethtool_phy_stats &&
+ phy_ops && phy_ops->get_sset_count)
+ return phy_ops->get_sset_count(dev->phydev);
if (sset == ETH_SS_LINK_MODES)
return __ETHTOOL_LINK_MODE_MASK_NBITS;
@@ -165,6 +193,7 @@ static int __ethtool_get_sset_count(struct net_device *dev, int sset)
static void __ethtool_get_strings(struct net_device *dev,
u32 stringset, u8 *data)
{
+ const struct ethtool_phy_ops *phy_ops = ethtool_phy_ops;
const struct ethtool_ops *ops = dev->ethtool_ops;
if (stringset == ETH_SS_FEATURES)
@@ -178,8 +207,9 @@ static void __ethtool_get_strings(struct net_device *dev,
else if (stringset == ETH_SS_PHY_TUNABLES)
memcpy(data, phy_tunable_strings, sizeof(phy_tunable_strings));
else if (stringset == ETH_SS_PHY_STATS && dev->phydev &&
- !ops->get_ethtool_phy_stats)
- phy_ethtool_get_strings(dev->phydev, data);
+ !ops->get_ethtool_phy_stats && phy_ops &&
+ phy_ops->get_strings)
+ phy_ops->get_strings(dev->phydev, data);
else if (stringset == ETH_SS_LINK_MODES)
memcpy(data, link_mode_names,
__ETHTOOL_LINK_MODE_MASK_NBITS * ETH_GSTRING_LEN);
@@ -329,7 +359,7 @@ EXPORT_SYMBOL(ethtool_intersect_link_masks);
void ethtool_convert_legacy_u32_to_link_mode(unsigned long *dst,
u32 legacy_u32)
{
- bitmap_zero(dst, __ETHTOOL_LINK_MODE_MASK_NBITS);
+ linkmode_zero(dst);
dst[0] = legacy_u32;
}
EXPORT_SYMBOL(ethtool_convert_legacy_u32_to_link_mode);
@@ -338,23 +368,9 @@ EXPORT_SYMBOL(ethtool_convert_legacy_u32_to_link_mode);
bool ethtool_convert_link_mode_to_legacy_u32(u32 *legacy_u32,
const unsigned long *src)
{
- bool retval = true;
-
- /* TODO: following test will soon always be true */
- if (__ETHTOOL_LINK_MODE_MASK_NBITS > 32) {
- __ETHTOOL_DECLARE_LINK_MODE_MASK(ext);
-
- bitmap_zero(ext, __ETHTOOL_LINK_MODE_MASK_NBITS);
- bitmap_fill(ext, 32);
- bitmap_complement(ext, ext, __ETHTOOL_LINK_MODE_MASK_NBITS);
- if (bitmap_intersects(ext, src,
- __ETHTOOL_LINK_MODE_MASK_NBITS)) {
- /* src mask goes beyond bit 31 */
- retval = false;
- }
- }
*legacy_u32 = src[0];
- return retval;
+ return find_next_bit(src, __ETHTOOL_LINK_MODE_MASK_NBITS, 32) ==
+ __ETHTOOL_LINK_MODE_MASK_NBITS;
}
EXPORT_SYMBOL(ethtool_convert_link_mode_to_legacy_u32);
@@ -427,6 +443,9 @@ int __ethtool_get_link_ksettings(struct net_device *dev,
if (!dev->ethtool_ops->get_link_ksettings)
return -EOPNOTSUPP;
+ if (!netif_device_present(dev))
+ return -ENODEV;
+
memset(link_ksettings, 0, sizeof(*link_ksettings));
return dev->ethtool_ops->get_link_ksettings(dev, link_ksettings);
}
@@ -485,7 +504,7 @@ store_link_ksettings_for_user(void __user *to,
{
struct ethtool_link_usettings link_usettings;
- memcpy(&link_usettings.base, &from->base, sizeof(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);
@@ -554,6 +573,7 @@ static int ethtool_get_link_ksettings(struct net_device *dev,
= __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);
}
@@ -562,8 +582,8 @@ static int ethtool_get_link_ksettings(struct net_device *dev,
static int ethtool_set_link_ksettings(struct net_device *dev,
void __user *useraddr)
{
+ struct ethtool_link_ksettings link_ksettings = {};
int err;
- struct ethtool_link_ksettings link_ksettings;
ASSERT_RTNL();
@@ -597,8 +617,8 @@ static int ethtool_set_link_ksettings(struct net_device *dev,
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);
+ ethtool_notify(dev, ETHTOOL_MSG_LINKINFO_NTF);
+ ethtool_notify(dev, ETHTOOL_MSG_LINKMODES_NTF);
}
return err;
}
@@ -643,6 +663,9 @@ static int ethtool_get_settings(struct net_device *dev, void __user *useraddr)
if (!dev->ethtool_ops->get_link_ksettings)
return -EOPNOTSUPP;
+ if (dev->ethtool->module_fw_flash_in_progress)
+ return -EBUSY;
+
memset(&link_ksettings, 0, sizeof(link_ksettings));
err = dev->ethtool_ops->get_link_ksettings(dev, &link_ksettings);
if (err < 0)
@@ -685,28 +708,37 @@ static int ethtool_set_settings(struct net_device *dev, void __user *useraddr)
__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);
+ ethtool_notify(dev, ETHTOOL_MSG_LINKINFO_NTF);
+ ethtool_notify(dev, ETHTOOL_MSG_LINKMODES_NTF);
}
return ret;
}
-static noinline_for_stack int ethtool_get_drvinfo(struct net_device *dev,
- void __user *useraddr)
+static int
+ethtool_get_drvinfo(struct net_device *dev, struct ethtool_devlink_compat *rsp)
{
- struct ethtool_drvinfo info;
const struct ethtool_ops *ops = dev->ethtool_ops;
+ struct device *parent = dev->dev.parent;
- memset(&info, 0, sizeof(info));
- info.cmd = ETHTOOL_GDRVINFO;
- strlcpy(info.version, UTS_RELEASE, sizeof(info.version));
+ 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, &info);
- } else if (dev->dev.parent && dev->dev.parent->driver) {
- strlcpy(info.bus_info, dev_name(dev->dev.parent),
- sizeof(info.bus_info));
- strlcpy(info.driver, dev->dev.parent->driver->name,
- sizeof(info.driver));
+ 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;
}
@@ -720,30 +752,27 @@ static noinline_for_stack int ethtool_get_drvinfo(struct net_device *dev,
rc = ops->get_sset_count(dev, ETH_SS_TEST);
if (rc >= 0)
- info.testinfo_len = rc;
+ rsp->info.testinfo_len = rc;
rc = ops->get_sset_count(dev, ETH_SS_STATS);
if (rc >= 0)
- info.n_stats = rc;
+ rsp->info.n_stats = rc;
rc = ops->get_sset_count(dev, ETH_SS_PRIV_FLAGS);
if (rc >= 0)
- info.n_priv_flags = rc;
+ rsp->info.n_priv_flags = rc;
}
if (ops->get_regs_len) {
int ret = ops->get_regs_len(dev);
if (ret > 0)
- info.regdump_len = ret;
+ rsp->info.regdump_len = ret;
}
if (ops->get_eeprom_len)
- info.eedump_len = ops->get_eeprom_len(dev);
+ rsp->info.eedump_len = ops->get_eeprom_len(dev);
- if (!info.fw_version[0])
- devlink_compat_running_version(dev, info.fw_version,
- sizeof(info.fw_version));
+ if (!rsp->info.fw_version[0])
+ rsp->devlink = netdev_to_devlink_get(dev);
- if (copy_to_user(useraddr, &info, sizeof(info)))
- return -EFAULT;
return 0;
}
@@ -793,7 +822,7 @@ static noinline_for_stack int ethtool_get_sset_info(struct net_device *dev,
goto out;
useraddr += offsetof(struct ethtool_sset_info, data);
- if (copy_to_user(useraddr, info_buf, idx * sizeof(u32)))
+ if (copy_to_user(useraddr, info_buf, array_size(idx, sizeof(u32))))
goto out;
ret = 0;
@@ -803,77 +832,420 @@ out:
return ret;
}
-static noinline_for_stack int ethtool_set_rxnfc(struct net_device *dev,
- u32 cmd, void __user *useraddr)
+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 ethtool_rxnfc info;
- size_t info_size = sizeof(info);
- int rc;
+ struct compat_ethtool_rxnfc crxnfc = {};
- if (!dev->ethtool_ops->set_rxnfc)
- return -EOPNOTSUPP;
+ /* 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_SRXFH)
- info_size = (offsetof(struct ethtool_rxnfc, data) +
- sizeof(info.data));
+ * definition.
+ */
+ if (cmd == ETHTOOL_GRXFH || cmd == ETHTOOL_SRXFH)
+ *info_size = (offsetof(struct ethtool_rxnfc, data) +
+ sizeof(info->data));
- if (copy_from_user(&info, useraddr, info_size))
+ if (ethtool_rxnfc_copy_from_user(info, useraddr, *info_size))
return -EFAULT;
- rc = dev->ethtool_ops->set_rxnfc(dev, &info);
+ 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 bool flow_type_hashable(u32 flow_type)
+{
+ switch (flow_type) {
+ case ETHER_FLOW:
+ case TCP_V4_FLOW:
+ case UDP_V4_FLOW:
+ case SCTP_V4_FLOW:
+ case AH_ESP_V4_FLOW:
+ case TCP_V6_FLOW:
+ case UDP_V6_FLOW:
+ case SCTP_V6_FLOW:
+ case AH_ESP_V6_FLOW:
+ case AH_V4_FLOW:
+ case ESP_V4_FLOW:
+ case AH_V6_FLOW:
+ case ESP_V6_FLOW:
+ case IPV4_FLOW:
+ case IPV6_FLOW:
+ case GTPU_V4_FLOW:
+ case GTPU_V6_FLOW:
+ case GTPC_V4_FLOW:
+ case GTPC_V6_FLOW:
+ case GTPC_TEID_V4_FLOW:
+ case GTPC_TEID_V6_FLOW:
+ case GTPU_EH_V4_FLOW:
+ case GTPU_EH_V6_FLOW:
+ case GTPU_UL_V4_FLOW:
+ case GTPU_UL_V6_FLOW:
+ case GTPU_DL_V4_FLOW:
+ case GTPU_DL_V6_FLOW:
+ return true;
+ }
+
+ return false;
+}
+
+static bool flow_type_v6(u32 flow_type)
+{
+ switch (flow_type) {
+ case TCP_V6_FLOW:
+ case UDP_V6_FLOW:
+ case SCTP_V6_FLOW:
+ case AH_ESP_V6_FLOW:
+ case AH_V6_FLOW:
+ case ESP_V6_FLOW:
+ case IPV6_FLOW:
+ case GTPU_V6_FLOW:
+ case GTPC_V6_FLOW:
+ case GTPC_TEID_V6_FLOW:
+ case GTPU_EH_V6_FLOW:
+ case GTPU_UL_V6_FLOW:
+ case GTPU_DL_V6_FLOW:
+ return true;
+ }
+
+ return false;
+}
+
+/* When adding a new type, update the assert and, if it's hashable, add it to
+ * the flow_type_hashable switch case.
+ */
+static_assert(GTPU_DL_V6_FLOW + 1 == __FLOW_TYPE_COUNT);
+
+static int ethtool_check_xfrm_rxfh(u32 input_xfrm, u64 rxfh)
+{
+ /* Sanity check: if symmetric-xor/symmetric-or-xor is set, then:
+ * 1 - no other fields besides IP src/dst and/or L4 src/dst are set
+ * 2 - If src is set, dst must also be set
+ */
+ if ((input_xfrm != RXH_XFRM_NO_CHANGE &&
+ input_xfrm & (RXH_XFRM_SYM_XOR | RXH_XFRM_SYM_OR_XOR)) &&
+ !ethtool_rxfh_config_is_sym(rxfh))
+ return -EINVAL;
+
+ return 0;
+}
+
+static int ethtool_check_flow_types(struct net_device *dev, u32 input_xfrm)
+{
+ const struct ethtool_ops *ops = dev->ethtool_ops;
+ int err;
+ u32 i;
+
+ if (!input_xfrm || input_xfrm == RXH_XFRM_NO_CHANGE)
+ return 0;
+
+ for (i = 0; i < __FLOW_TYPE_COUNT; i++) {
+ struct ethtool_rxfh_fields fields = {
+ .flow_type = i,
+ };
+
+ if (!flow_type_hashable(i))
+ continue;
+
+ if (ops->get_rxfh_fields(dev, &fields))
+ continue;
+
+ err = ethtool_check_xfrm_rxfh(input_xfrm, fields.data);
+ if (err)
+ return err;
+ }
+
+ return 0;
+}
+
+static noinline_for_stack int
+ethtool_set_rxfh_fields(struct net_device *dev, u32 cmd, void __user *useraddr)
+{
+ const struct ethtool_ops *ops = dev->ethtool_ops;
+ struct ethtool_rxfh_fields fields = {};
+ struct ethtool_rxnfc info;
+ size_t info_size = sizeof(info);
+ int rc;
+
+ if (!ops->set_rxfh_fields)
+ return -EOPNOTSUPP;
+
+ rc = ethtool_rxnfc_copy_struct(cmd, &info, &info_size, useraddr);
if (rc)
return rc;
- if (cmd == ETHTOOL_SRXCLSRLINS &&
- copy_to_user(useraddr, &info, info_size))
- return -EFAULT;
+ if (info.data & RXH_IP6_FL && !flow_type_v6(info.flow_type))
+ return -EINVAL;
+ if (info.flow_type & FLOW_RSS && info.rss_context &&
+ !ops->rxfh_per_ctx_fields)
+ return -EINVAL;
+
+ mutex_lock(&dev->ethtool->rss_lock);
+ if (ops->get_rxfh) {
+ struct ethtool_rxfh_param rxfh = {};
+
+ rc = ops->get_rxfh(dev, &rxfh);
+ if (rc)
+ goto exit_unlock;
+
+ rc = ethtool_check_xfrm_rxfh(rxfh.input_xfrm, info.data);
+ if (rc)
+ goto exit_unlock;
+ }
+
+ fields.data = info.data;
+ fields.flow_type = info.flow_type & ~FLOW_RSS;
+ if (info.flow_type & FLOW_RSS)
+ fields.rss_context = info.rss_context;
+
+ rc = ops->set_rxfh_fields(dev, &fields, NULL);
+exit_unlock:
+ mutex_unlock(&dev->ethtool->rss_lock);
+ if (rc)
+ return rc;
+
+ ethtool_rss_notify(dev, ETHTOOL_MSG_RSS_NTF, fields.rss_context);
return 0;
}
-static noinline_for_stack int ethtool_get_rxnfc(struct net_device *dev,
- u32 cmd, void __user *useraddr)
+static noinline_for_stack int
+ethtool_get_rxfh_fields(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;
+ struct ethtool_rxfh_fields fields = {};
int ret;
- void *rule_buf = NULL;
- if (!ops->get_rxnfc)
+ if (!ops->get_rxfh_fields)
return -EOPNOTSUPP;
- /* 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)
- info_size = (offsetof(struct ethtool_rxnfc, data) +
- sizeof(info.data));
+ ret = ethtool_rxnfc_copy_struct(cmd, &info, &info_size, useraddr);
+ if (ret)
+ return ret;
- if (copy_from_user(&info, useraddr, info_size))
- return -EFAULT;
+ if (info.flow_type & FLOW_RSS && info.rss_context &&
+ !ops->rxfh_per_ctx_fields)
+ return -EINVAL;
- /* If FLOW_RSS was requested then user-space must be using the
- * new definition, as FLOW_RSS is newer.
- */
- if (cmd == ETHTOOL_GRXFH && info.flow_type & FLOW_RSS) {
- info_size = sizeof(info);
- if (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.
+ fields.flow_type = info.flow_type & ~FLOW_RSS;
+ if (info.flow_type & FLOW_RSS)
+ fields.rss_context = info.rss_context;
+
+ mutex_lock(&dev->ethtool->rss_lock);
+ ret = ops->get_rxfh_fields(dev, &fields);
+ mutex_unlock(&dev->ethtool->rss_lock);
+ if (ret < 0)
+ return ret;
+
+ info.data = fields.data;
+
+ return ethtool_rxnfc_copy_to_user(useraddr, &info, info_size, NULL);
+}
+
+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 (cmd == ETHTOOL_SRXCLSRLINS && info.fs.flow_type & FLOW_RSS) {
+ /* Nonzero ring with RSS only makes sense
+ * if NIC adds them together
*/
- if (!(info.flow_type & FLOW_RSS))
+ if (!ops->cap_rss_rxnfc_adds &&
+ ethtool_get_flow_spec_ring(info.fs.ring_cookie))
+ return -EINVAL;
+
+ if (info.rss_context &&
+ !xa_load(&dev->ethtool->rss_ctx, info.rss_context))
return -EINVAL;
}
- if (info.cmd != cmd)
- 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_rxrings(struct net_device *dev,
+ u32 cmd,
+ void __user *useraddr)
+{
+ struct ethtool_rxnfc info;
+ size_t info_size;
+ int ret;
+
+ info_size = sizeof(info);
+ ret = ethtool_rxnfc_copy_struct(cmd, &info, &info_size, useraddr);
+ if (ret)
+ return ret;
+
+ ret = ethtool_get_rx_ring_count(dev);
+ if (ret < 0)
+ return ret;
+
+ info.data = ret;
+
+ return ethtool_rxnfc_copy_to_user(useraddr, &info, info_size, NULL);
+}
+
+static noinline_for_stack int ethtool_get_rxnfc(struct net_device *dev,
+ u32 cmd, void __user *useraddr)
+{
+ const struct ethtool_ops *ops = dev->ethtool_ops;
+ struct ethtool_rxnfc info;
+ void *rule_buf = NULL;
+ size_t info_size;
+ int ret;
+
+ if (!ops->get_rxnfc)
+ return -EOPNOTSUPP;
+
+ info_size = sizeof(info);
+ ret = ethtool_rxnfc_copy_struct(cmd, &info, &info_size, useraddr);
+ if (ret)
+ return ret;
if (info.cmd == ETHTOOL_GRXCLSRLALL) {
if (info.rule_cnt > 0) {
@@ -889,18 +1261,7 @@ static noinline_for_stack int ethtool_get_rxnfc(struct net_device *dev,
if (ret < 0)
goto err_out;
- ret = -EFAULT;
- if (copy_to_user(useraddr, &info, info_size))
- goto err_out;
-
- if (rule_buf) {
- useraddr += offsetof(struct ethtool_rxnfc, rule_locs);
- if (copy_to_user(useraddr, rule_buf,
- info.rule_cnt * sizeof(u32)))
- goto err_out;
- }
- ret = 0;
-
+ ret = ethtool_rxnfc_copy_to_user(useraddr, &info, info_size, rule_buf);
err_out:
kfree(rule_buf);
@@ -908,17 +1269,17 @@ err_out:
}
static int ethtool_copy_validate_indir(u32 *indir, void __user *useraddr,
- struct ethtool_rxnfc *rx_rings,
- u32 size)
+ int num_rx_rings,
+ u32 size)
{
int i;
- if (copy_from_user(indir, useraddr, size * sizeof(indir[0])))
+ 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)
+ if (indir[i] >= num_rx_rings)
return -EINVAL;
return 0;
@@ -937,15 +1298,15 @@ EXPORT_SYMBOL(netdev_rss_key_fill);
static noinline_for_stack int ethtool_get_rxfh_indir(struct net_device *dev,
void __user *useraddr)
{
- u32 user_size, dev_size;
- u32 *indir;
+ 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;
- dev_size = dev->ethtool_ops->get_rxfh_indir_size(dev);
- if (dev_size == 0)
+ rxfh.indir_size = dev->ethtool_ops->get_rxfh_indir_size(dev);
+ if (rxfh.indir_size == 0)
return -EOPNOTSUPP;
if (copy_from_user(&user_size,
@@ -954,50 +1315,51 @@ static noinline_for_stack int ethtool_get_rxfh_indir(struct net_device *dev,
return -EFAULT;
if (copy_to_user(useraddr + offsetof(struct ethtool_rxfh_indir, size),
- &dev_size, sizeof(dev_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 < dev_size)
+ if (user_size < rxfh.indir_size)
return user_size == 0 ? 0 : -EINVAL;
- indir = kcalloc(dev_size, sizeof(indir[0]), GFP_USER);
- if (!indir)
+ rxfh.indir = kcalloc(rxfh.indir_size, sizeof(rxfh.indir[0]), GFP_USER);
+ if (!rxfh.indir)
return -ENOMEM;
- ret = dev->ethtool_ops->get_rxfh(dev, indir, NULL, NULL);
+ mutex_lock(&dev->ethtool->rss_lock);
+ ret = dev->ethtool_ops->get_rxfh(dev, &rxfh);
+ mutex_unlock(&dev->ethtool->rss_lock);
if (ret)
goto out;
-
if (copy_to_user(useraddr +
offsetof(struct ethtool_rxfh_indir, ring_index[0]),
- indir, dev_size * sizeof(indir[0])))
+ rxfh.indir, rxfh.indir_size * sizeof(*rxfh.indir)))
ret = -EFAULT;
out:
- kfree(indir);
+ kfree(rxfh.indir);
return ret;
}
static noinline_for_stack int ethtool_set_rxfh_indir(struct net_device *dev,
void __user *useraddr)
{
- struct ethtool_rxnfc rx_rings;
- u32 user_size, dev_size, i;
- u32 *indir;
const struct ethtool_ops *ops = dev->ethtool_ops;
+ struct ethtool_rxfh_param rxfh_dev = {};
+ struct netlink_ext_ack *extack = NULL;
+ int num_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)
+ if (!ops->get_rxfh_indir_size || !ops->set_rxfh)
return -EOPNOTSUPP;
- dev_size = ops->get_rxfh_indir_size(dev);
- if (dev_size == 0)
+ rxfh_dev.indir_size = ops->get_rxfh_indir_size(dev);
+ if (rxfh_dev.indir_size == 0)
return -EOPNOTSUPP;
if (copy_from_user(&user_size,
@@ -1005,33 +1367,40 @@ static noinline_for_stack int ethtool_set_rxfh_indir(struct net_device *dev,
sizeof(user_size)))
return -EFAULT;
- if (user_size != 0 && user_size != dev_size)
+ if (user_size != 0 && user_size != rxfh_dev.indir_size)
return -EINVAL;
- indir = kcalloc(dev_size, sizeof(indir[0]), GFP_USER);
- if (!indir)
+ 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)
+ num_rx_rings = ethtool_get_rx_ring_count(dev);
+ if (num_rx_rings < 0) {
+ ret = num_rx_rings;
goto out;
+ }
if (user_size == 0) {
- for (i = 0; i < dev_size; i++)
- indir[i] = ethtool_rxfh_indir_default(i, rx_rings.data);
+ u32 *indir = rxfh_dev.indir;
+
+ for (i = 0; i < rxfh_dev.indir_size; i++)
+ indir[i] = ethtool_rxfh_indir_default(i, num_rx_rings);
} else {
- ret = ethtool_copy_validate_indir(indir,
+ ret = ethtool_copy_validate_indir(rxfh_dev.indir,
useraddr + ringidx_offset,
- &rx_rings,
- dev_size);
+ num_rx_rings,
+ rxfh_dev.indir_size);
if (ret)
goto out;
}
- ret = ops->set_rxfh(dev, indir, NULL, ETH_RSS_HASH_NO_CHANGE);
+ rxfh_dev.hfunc = ETH_RSS_HASH_NO_CHANGE;
+
+ mutex_lock(&dev->ethtool->rss_lock);
+ ret = ops->set_rxfh(dev, &rxfh_dev, extack);
if (ret)
- goto out;
+ goto out_unlock;
/* indicate whether rxfh was set to default */
if (user_size == 0)
@@ -1039,33 +1408,33 @@ static noinline_for_stack int ethtool_set_rxfh_indir(struct net_device *dev,
else
dev->priv_flags |= IFF_RXFH_CONFIGURED;
+out_unlock:
+ mutex_unlock(&dev->ethtool->rss_lock);
out:
- kfree(indir);
+ kfree(rxfh_dev.indir);
return ret;
}
static noinline_for_stack int ethtool_get_rxfh(struct net_device *dev,
void __user *useraddr)
{
- int ret;
const struct ethtool_ops *ops = dev->ethtool_ops;
+ struct ethtool_rxfh_param rxfh_dev = {};
u32 user_indir_size, user_key_size;
- u32 dev_indir_size = 0, dev_key_size = 0;
+ struct ethtool_rxfh_context *ctx;
struct ethtool_rxfh rxfh;
- u32 total_size;
u32 indir_bytes;
- u32 *indir = NULL;
- u8 dev_hfunc = 0;
- u8 *hkey = NULL;
u8 *rss_config;
+ u32 total_size;
+ int ret;
if (!ops->get_rxfh)
return -EOPNOTSUPP;
if (ops->get_rxfh_indir_size)
- dev_indir_size = ops->get_rxfh_indir_size(dev);
+ rxfh_dev.indir_size = ops->get_rxfh_indir_size(dev);
if (ops->get_rxfh_key_size)
- dev_key_size = ops->get_rxfh_key_size(dev);
+ rxfh_dev.key_size = ops->get_rxfh_key_size(dev);
if (copy_from_user(&rxfh, useraddr, sizeof(rxfh)))
return -EFAULT;
@@ -1073,44 +1442,72 @@ static noinline_for_stack int ethtool_get_rxfh(struct net_device *dev,
user_key_size = rxfh.key_size;
/* Check that reserved fields are 0 for now */
- if (rxfh.rsvd8[0] || rxfh.rsvd8[1] || rxfh.rsvd8[2] || rxfh.rsvd32)
+ 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->get_rxfh_context)
+ if (rxfh.rss_context && !ops->create_rxfh_context)
return -EOPNOTSUPP;
- rxfh.indir_size = dev_indir_size;
- rxfh.key_size = dev_key_size;
+ 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 != dev_indir_size)) ||
- (user_key_size && (user_key_size != dev_key_size)))
+ 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(indir[0]);
+ 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)
- indir = (u32 *)rss_config;
+ rxfh_dev.indir = (u32 *)rss_config;
if (user_key_size)
- hkey = rss_config + indir_bytes;
+ rxfh_dev.key = rss_config + indir_bytes;
- if (rxfh.rss_context)
- ret = dev->ethtool_ops->get_rxfh_context(dev, indir, hkey,
- &dev_hfunc,
- rxfh.rss_context);
- else
- ret = dev->ethtool_ops->get_rxfh(dev, indir, hkey, &dev_hfunc);
- if (ret)
- goto out;
+ mutex_lock(&dev->ethtool->rss_lock);
+ if (rxfh.rss_context) {
+ ctx = xa_load(&dev->ethtool->rss_ctx, rxfh.rss_context);
+ if (!ctx) {
+ ret = -ENOENT;
+ goto out;
+ }
+ if (rxfh_dev.indir)
+ memcpy(rxfh_dev.indir, ethtool_rxfh_context_indir(ctx),
+ indir_bytes);
+ if (!ops->rxfh_per_ctx_key) {
+ rxfh_dev.key_size = 0;
+ } else {
+ if (rxfh_dev.key)
+ memcpy(rxfh_dev.key,
+ ethtool_rxfh_context_key(ctx),
+ user_key_size);
+ rxfh_dev.hfunc = ctx->hfunc;
+ }
+ rxfh_dev.input_xfrm = ctx->input_xfrm;
+ ret = 0;
+ } else {
+ ret = dev->ethtool_ops->get_rxfh(dev, &rxfh_dev);
+ if (ret)
+ goto out;
+ }
if (copy_to_user(useraddr + offsetof(struct ethtool_rxfh, hfunc),
- &dev_hfunc, sizeof(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, key_size),
+ &rxfh_dev.key_size,
+ sizeof(rxfh.key_size))) {
ret = -EFAULT;
} else if (copy_to_user(useraddr +
offsetof(struct ethtool_rxfh, rss_config[0]),
@@ -1118,6 +1515,7 @@ static noinline_for_stack int ethtool_get_rxfh(struct net_device *dev,
ret = -EFAULT;
}
out:
+ mutex_unlock(&dev->ethtool->rss_lock);
kfree(rss_config);
return ret;
@@ -1126,18 +1524,21 @@ out:
static noinline_for_stack int ethtool_set_rxfh(struct net_device *dev,
void __user *useraddr)
{
- int ret;
+ u32 rss_cfg_offset = offsetof(struct ethtool_rxfh, rss_config[0]);
const struct ethtool_ops *ops = dev->ethtool_ops;
- struct ethtool_rxnfc rx_rings;
- struct ethtool_rxfh rxfh;
u32 dev_indir_size = 0, dev_key_size = 0, i;
- u32 *indir = NULL, indir_bytes = 0;
- u8 *hkey = NULL;
+ u32 user_indir_len = 0, indir_bytes = 0;
+ struct ethtool_rxfh_param rxfh_dev = {};
+ struct ethtool_rxfh_context *ctx = NULL;
+ struct netlink_ext_ack *extack = NULL;
+ struct ethtool_rxfh rxfh;
+ bool create = false;
+ int num_rx_rings;
u8 *rss_config;
- u32 rss_cfg_offset = offsetof(struct ethtool_rxfh, rss_config[0]);
- bool delete = false;
+ int ntf = 0;
+ int ret;
- if (!ops->get_rxnfc || !ops->set_rxfh)
+ if (!ops->set_rxfh)
return -EOPNOTSUPP;
if (ops->get_rxfh_indir_size)
@@ -1149,34 +1550,55 @@ static noinline_for_stack int ethtool_set_rxfh(struct net_device *dev,
return -EFAULT;
/* Check that reserved fields are 0 for now */
- if (rxfh.rsvd8[0] || rxfh.rsvd8[1] || rxfh.rsvd8[2] || rxfh.rsvd32)
+ 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->set_rxfh_context)
+ if (rxfh.rss_context && !ops->create_rxfh_context)
return -EOPNOTSUPP;
+ /* Check input data transformation capabilities */
+ if (rxfh.input_xfrm && rxfh.input_xfrm != RXH_XFRM_SYM_XOR &&
+ rxfh.input_xfrm != RXH_XFRM_SYM_OR_XOR &&
+ rxfh.input_xfrm != RXH_XFRM_NO_CHANGE)
+ return -EINVAL;
+ if (rxfh.input_xfrm != RXH_XFRM_NO_CHANGE &&
+ rxfh.input_xfrm & ~ops->supported_input_xfrm)
+ return -EOPNOTSUPP;
+ create = rxfh.rss_context == ETH_RXFH_CONTEXT_ALLOC;
- /* If either indir, hash key or function is valid, proceed further.
- * Must request at least one change: indir size, hash key or function.
- */
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.key_size && rxfh.key_size != dev_key_size))
+ return -EINVAL;
+
+ /* Must request at least one change: indir size, hash key, function
+ * or input transformation.
+ * There's no need for any of it in case of context creation.
+ */
+ if (!create &&
(rxfh.indir_size == ETH_RXFH_INDIR_NO_CHANGE &&
- rxfh.key_size == 0 && rxfh.hfunc == ETH_RSS_HASH_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(indir[0]);
+ indir_bytes = dev_indir_size * sizeof(rxfh_dev.indir[0]);
+
+ /* Check settings which may be global rather than per RSS-context */
+ if (rxfh.rss_context && !ops->rxfh_per_ctx_key)
+ if (rxfh.key_size ||
+ (rxfh.hfunc && rxfh.hfunc != ETH_RSS_HASH_NO_CHANGE) ||
+ (rxfh.input_xfrm && rxfh.input_xfrm != RXH_XFRM_NO_CHANGE))
+ return -EOPNOTSUPP;
- rss_config = kzalloc(indir_bytes + rxfh.key_size, GFP_USER);
+ rss_config = kzalloc(indir_bytes + dev_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;
+ num_rx_rings = ethtool_get_rx_ring_count(dev);
+ if (num_rx_rings < 0) {
+ ret = num_rx_rings;
+ goto out_free;
+ }
/* rxfh.indir_size == 0 means reset the indir table to default (master
* context) or delete the context (other RSS contexts).
@@ -1184,55 +1606,154 @@ static noinline_for_stack int ethtool_set_rxfh(struct net_device *dev,
*/
if (rxfh.indir_size &&
rxfh.indir_size != ETH_RXFH_INDIR_NO_CHANGE) {
- indir = (u32 *)rss_config;
- ret = ethtool_copy_validate_indir(indir,
+ user_indir_len = indir_bytes;
+ 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,
+ num_rx_rings,
rxfh.indir_size);
if (ret)
- goto out;
+ goto out_free;
} else if (rxfh.indir_size == 0) {
if (rxfh.rss_context == 0) {
- indir = (u32 *)rss_config;
+ 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);
+ indir[i] =
+ ethtool_rxfh_indir_default(i, num_rx_rings);
} else {
- delete = true;
+ rxfh_dev.rss_delete = true;
}
}
if (rxfh.key_size) {
- hkey = rss_config + indir_bytes;
- if (copy_from_user(hkey,
- useraddr + rss_cfg_offset + indir_bytes,
+ 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 + user_indir_len,
rxfh.key_size)) {
ret = -EFAULT;
- goto out;
+ goto out_free;
}
}
- if (rxfh.rss_context)
- ret = ops->set_rxfh_context(dev, indir, hkey, rxfh.hfunc,
- &rxfh.rss_context, delete);
- else
- ret = ops->set_rxfh(dev, indir, hkey, rxfh.hfunc);
+ mutex_lock(&dev->ethtool->rss_lock);
+
+ ret = ethtool_check_flow_types(dev, rxfh.input_xfrm);
if (ret)
- goto out;
+ goto out_unlock;
+
+ if (rxfh.rss_context && rxfh_dev.rss_delete) {
+ ret = ethtool_check_rss_ctx_busy(dev, rxfh.rss_context);
+ if (ret)
+ goto out_unlock;
+ }
+
+ if (create) {
+ u32 limit, ctx_id;
+
+ if (rxfh_dev.rss_delete) {
+ ret = -EINVAL;
+ goto out_unlock;
+ }
+ ctx = ethtool_rxfh_ctx_alloc(ops, dev_indir_size, dev_key_size);
+ if (!ctx) {
+ ret = -ENOMEM;
+ goto out_unlock;
+ }
+
+ limit = ops->rxfh_max_num_contexts ?: U32_MAX;
+ ret = xa_alloc(&dev->ethtool->rss_ctx, &ctx_id, ctx,
+ XA_LIMIT(1, limit - 1), GFP_KERNEL_ACCOUNT);
+ if (ret < 0) {
+ kfree(ctx);
+ goto out_unlock;
+ }
+ WARN_ON(!ctx_id); /* can't happen */
+ rxfh.rss_context = ctx_id;
+ } else if (rxfh.rss_context) {
+ ctx = xa_load(&dev->ethtool->rss_ctx, rxfh.rss_context);
+ if (!ctx) {
+ ret = -ENOENT;
+ goto out_unlock;
+ }
+ }
+ rxfh_dev.hfunc = rxfh.hfunc;
+ rxfh_dev.rss_context = rxfh.rss_context;
+ rxfh_dev.input_xfrm = rxfh.input_xfrm;
+
+ if (!rxfh.rss_context) {
+ ntf = ETHTOOL_MSG_RSS_NTF;
+ ret = ops->set_rxfh(dev, &rxfh_dev, extack);
+ } else if (create) {
+ ntf = ETHTOOL_MSG_RSS_CREATE_NTF;
+ ret = ops->create_rxfh_context(dev, ctx, &rxfh_dev, extack);
+ /* Make sure driver populates defaults */
+ WARN_ON_ONCE(!ret && !rxfh_dev.key && ops->rxfh_per_ctx_key &&
+ !memchr_inv(ethtool_rxfh_context_key(ctx), 0,
+ ctx->key_size));
+ } else if (rxfh_dev.rss_delete) {
+ ntf = ETHTOOL_MSG_RSS_DELETE_NTF;
+ ret = ops->remove_rxfh_context(dev, ctx, rxfh.rss_context,
+ extack);
+ } else {
+ ntf = ETHTOOL_MSG_RSS_NTF;
+ ret = ops->modify_rxfh_context(dev, ctx, &rxfh_dev, extack);
+ }
+ if (ret) {
+ ntf = 0;
+ if (create) {
+ /* failed to create, free our new tracking entry */
+ xa_erase(&dev->ethtool->rss_ctx, rxfh.rss_context);
+ kfree(ctx);
+ }
+ goto out_unlock;
+ }
if (copy_to_user(useraddr + offsetof(struct ethtool_rxfh, rss_context),
- &rxfh.rss_context, sizeof(rxfh.rss_context)))
+ &rxfh_dev.rss_context, sizeof(rxfh_dev.rss_context)))
ret = -EFAULT;
- if (!rxfh.rss_context) {
+ 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;
}
+ /* Update rss_ctx tracking */
+ if (rxfh_dev.rss_delete) {
+ WARN_ON(xa_erase(&dev->ethtool->rss_ctx, rxfh.rss_context) != ctx);
+ kfree(ctx);
+ } else if (ctx) {
+ if (rxfh_dev.indir) {
+ for (i = 0; i < dev_indir_size; i++)
+ ethtool_rxfh_context_indir(ctx)[i] = rxfh_dev.indir[i];
+ ctx->indir_configured =
+ rxfh.indir_size &&
+ rxfh.indir_size != ETH_RXFH_INDIR_NO_CHANGE;
+ }
+ if (rxfh_dev.key) {
+ memcpy(ethtool_rxfh_context_key(ctx), rxfh_dev.key,
+ dev_key_size);
+ ctx->key_configured = !!rxfh.key_size;
+ }
+ if (rxfh_dev.hfunc != ETH_RSS_HASH_NO_CHANGE)
+ ctx->hfunc = rxfh_dev.hfunc;
+ if (rxfh_dev.input_xfrm != RXH_XFRM_NO_CHANGE)
+ ctx->input_xfrm = rxfh_dev.input_xfrm;
+ }
-out:
+out_unlock:
+ mutex_unlock(&dev->ethtool->rss_lock);
+out_free:
kfree(rss_config);
+ if (ntf)
+ ethtool_rss_notify(dev, ntf, rxfh.rss_context);
return ret;
}
@@ -1286,6 +1807,9 @@ static int ethtool_reset(struct net_device *dev, char __user *useraddr)
if (!dev->ethtool_ops->reset)
return -EOPNOTSUPP;
+ if (dev->ethtool->module_fw_flash_in_progress)
+ return -EBUSY;
+
if (copy_from_user(&reset, useraddr, sizeof(reset)))
return -EFAULT;
@@ -1316,41 +1840,87 @@ static int ethtool_get_wol(struct net_device *dev, char __user *useraddr)
static int ethtool_set_wol(struct net_device *dev, char __user *useraddr)
{
- struct ethtool_wolinfo wol;
+ struct ethtool_wolinfo wol, cur_wol;
int ret;
- if (!dev->ethtool_ops->set_wol)
+ 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);
+ dev->ethtool->wol_enabled = !!wol.wolopts;
+ ethtool_notify(dev, ETHTOOL_MSG_WOL_NTF);
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_eee edata;
+ struct ethtool_keee keee;
+ struct ethtool_eee eee;
int rc;
if (!dev->ethtool_ops->get_eee)
return -EOPNOTSUPP;
- memset(&edata, 0, sizeof(struct ethtool_eee));
- edata.cmd = ETHTOOL_GEEE;
- rc = dev->ethtool_ops->get_eee(dev, &edata);
-
+ memset(&keee, 0, sizeof(keee));
+ rc = dev->ethtool_ops->get_eee(dev, &keee);
if (rc)
return rc;
- if (copy_to_user(useraddr, &edata, sizeof(edata)))
+ keee_to_eee(&eee, &keee);
+ if (copy_to_user(useraddr, &eee, sizeof(eee)))
return -EFAULT;
return 0;
@@ -1358,18 +1928,20 @@ static int ethtool_get_eee(struct net_device *dev, char __user *useraddr)
static int ethtool_set_eee(struct net_device *dev, char __user *useraddr)
{
- struct ethtool_eee edata;
+ struct ethtool_keee keee;
+ struct ethtool_eee eee;
int ret;
if (!dev->ethtool_ops->set_eee)
return -EOPNOTSUPP;
- if (copy_from_user(&edata, useraddr, sizeof(edata)))
+ if (copy_from_user(&eee, useraddr, sizeof(eee)))
return -EFAULT;
- ret = dev->ethtool_ops->set_eee(dev, &edata);
+ eee_to_keee(&keee, &eee);
+ ret = dev->ethtool_ops->set_eee(dev, &keee);
if (!ret)
- ethtool_notify(dev, ETHTOOL_MSG_EEE_NTF, NULL);
+ ethtool_notify(dev, ETHTOOL_MSG_EEE_NTF);
return ret;
}
@@ -1417,7 +1989,7 @@ static int ethtool_get_any_eeprom(struct net_device *dev, void __user *useraddr,
if (eeprom.offset + eeprom.len > total_len)
return -EINVAL;
- data = kmalloc(PAGE_SIZE, GFP_USER);
+ data = kzalloc(PAGE_SIZE, GFP_USER);
if (!data)
return -ENOMEM;
@@ -1428,6 +2000,10 @@ static int ethtool_get_any_eeprom(struct net_device *dev, void __user *useraddr,
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;
@@ -1482,7 +2058,7 @@ static int ethtool_set_eeprom(struct net_device *dev, void __user *useraddr)
if (eeprom.offset + eeprom.len > ops->get_eeprom_len(dev))
return -EINVAL;
- data = kmalloc(PAGE_SIZE, GFP_USER);
+ data = kzalloc(PAGE_SIZE, GFP_USER);
if (!data)
return -ENOMEM;
@@ -1510,12 +2086,14 @@ 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);
+ ret = dev->ethtool_ops->get_coalesce(dev, &coalesce, &kernel_coalesce,
+ NULL);
if (ret)
return ret;
@@ -1582,32 +2160,41 @@ ethtool_set_coalesce_supported(struct net_device *dev,
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)
+ 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);
+ ret = dev->ethtool_ops->set_coalesce(dev, &coalesce, &kernel_coalesce,
+ NULL);
if (!ret)
- ethtool_notify(dev, ETHTOOL_MSG_COALESCE_NTF, NULL);
+ ethtool_notify(dev, ETHTOOL_MSG_COALESCE_NTF);
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);
+ dev->ethtool_ops->get_ringparam(dev, &ringparam,
+ &kernel_ringparam, NULL);
if (copy_to_user(useraddr, &ringparam, sizeof(ringparam)))
return -EFAULT;
@@ -1616,7 +2203,8 @@ static int ethtool_get_ringparam(struct net_device *dev, void __user *useraddr)
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;
+ struct ethtool_ringparam ringparam, max;
int ret;
if (!dev->ethtool_ops->set_ringparam || !dev->ethtool_ops->get_ringparam)
@@ -1625,7 +2213,7 @@ static int ethtool_set_ringparam(struct net_device *dev, void __user *useraddr)
if (copy_from_user(&ringparam, useraddr, sizeof(ringparam)))
return -EFAULT;
- dev->ethtool_ops->get_ringparam(dev, &max);
+ ethtool_ringparam_get_cfg(dev, &max, &kernel_ringparam, NULL);
/* ensure new ring parameters are within the maximums */
if (ringparam.rx_pending > max.rx_max_pending ||
@@ -1634,9 +2222,10 @@ static int ethtool_set_ringparam(struct net_device *dev, void __user *useraddr)
ringparam.tx_pending > max.tx_max_pending)
return -EINVAL;
- ret = dev->ethtool_ops->set_ringparam(dev, &ringparam);
+ ret = dev->ethtool_ops->set_ringparam(dev, &ringparam,
+ &kernel_ringparam, NULL);
if (!ret)
- ethtool_notify(dev, ETHTOOL_MSG_RINGS_NTF, NULL);
+ ethtool_notify(dev, ETHTOOL_MSG_RINGS_NTF);
return ret;
}
@@ -1660,7 +2249,6 @@ static noinline_for_stack int ethtool_set_channels(struct net_device *dev,
{
struct ethtool_channels channels, curr = { .cmd = ETHTOOL_GCHANNELS };
u16 from_channel, to_channel;
- u32 max_rx_in_use = 0;
unsigned int i;
int ret;
@@ -1690,24 +2278,21 @@ static noinline_for_stack int ethtool_set_channels(struct net_device *dev,
(!channels.rx_count || !channels.tx_count))
return -EINVAL;
- /* ensure the new Rx count fits within the configured Rx flow
- * indirection table settings */
- if (netif_is_rxfh_configured(dev) &&
- !ethtool_get_max_rxfh_channel(dev, &max_rx_in_use) &&
- (channels.combined_count + channels.rx_count) <= max_rx_in_use)
- return -EINVAL;
+ ret = ethtool_check_max_channel(dev, channels, NULL);
+ if (ret)
+ return ret;
/* 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 (xdp_get_umem_from_qid(dev, 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);
+ ethtool_notify(dev, ETHTOOL_MSG_CHANNELS_NTF);
return ret;
}
@@ -1738,7 +2323,7 @@ static int ethtool_set_pauseparam(struct net_device *dev, void __user *useraddr)
ret = dev->ethtool_ops->set_pauseparam(dev, &pauseparam);
if (!ret)
- ethtool_notify(dev, ETHTOOL_MSG_PAUSE_NTF, NULL);
+ ethtool_notify(dev, ETHTOOL_MSG_PAUSE_NTF);
return ret;
}
@@ -1761,7 +2346,7 @@ static int ethtool_self_test(struct net_device *dev, char __user *useraddr)
return -EFAULT;
test.len = test_len;
- data = kmalloc_array(test_len, sizeof(u64), GFP_USER);
+ data = kcalloc(test_len, sizeof(u64), GFP_USER);
if (!data)
return -ENOMEM;
@@ -1773,7 +2358,7 @@ static int ethtool_self_test(struct net_device *dev, char __user *useraddr)
if (copy_to_user(useraddr, &test, sizeof(test)))
goto out;
useraddr += sizeof(test);
- if (copy_to_user(useraddr, data, test.len * sizeof(u64)))
+ if (copy_to_user(useraddr, data, array_size(test.len, sizeof(u64))))
goto out;
ret = 0;
@@ -1815,7 +2400,8 @@ static int ethtool_get_strings(struct net_device *dev, void __user *useraddr)
goto out;
useraddr += sizeof(gstrings);
if (gstrings.len &&
- copy_to_user(useraddr, data, gstrings.len * ETH_GSTRING_LEN))
+ copy_to_user(useraddr, data,
+ array_size(gstrings.len, ETH_GSTRING_LEN)))
goto out;
ret = 0;
@@ -1824,11 +2410,31 @@ out:
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)
@@ -1848,7 +2454,8 @@ static int ethtool_phys_id(struct net_device *dev, void __user *useraddr)
* removal of the device.
*/
busy = true;
- dev_hold(dev);
+ netdev_hold(dev, &dev_tracker, GFP_KERNEL);
+ netdev_unlock_ops(dev);
rtnl_unlock();
if (rc == 0) {
@@ -1857,27 +2464,26 @@ static int ethtool_phys_id(struct net_device *dev, void __user *useraddr)
id.data ? (id.data * HZ) : MAX_SCHEDULE_TIMEOUT);
} else {
/* Driver expects to be called at twice the frequency in rc */
- int n = rc * 2, i, interval = HZ / n;
+ int n = rc * 2, interval = HZ / n;
+ u64 count = mul_u32_u32(n, id.data);
+ u64 i = 0;
- /* Count down seconds */
do {
- /* Count down iterations per second */
- i = n;
- 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) && --i != 0);
- } while (!signal_pending(current) &&
- (id.data == 0 || --id.data != 0));
+ rtnl_lock();
+ netdev_lock_ops(dev);
+ rc = ops->set_phys_id(dev,
+ (i++ & 1) ? ETHTOOL_ID_OFF : ETHTOOL_ID_ON);
+ netdev_unlock_ops(dev);
+ rtnl_unlock();
+ if (rc)
+ break;
+ schedule_timeout_interruptible(interval);
+ } while (!signal_pending(current) && (!id.data || i < count));
}
rtnl_lock();
- dev_put(dev);
+ netdev_lock_ops(dev);
+ netdev_put(dev, &dev_tracker);
busy = false;
(void) ops->set_phys_id(dev, ETHTOOL_ID_INACTIVE);
@@ -1918,7 +2524,7 @@ static int ethtool_get_stats(struct net_device *dev, void __user *useraddr)
if (copy_to_user(useraddr, &stats, sizeof(stats)))
goto out;
useraddr += sizeof(stats);
- if (n_stats && copy_to_user(useraddr, data, n_stats * sizeof(u64)))
+ if (n_stats && copy_to_user(useraddr, data, array_size(n_stats, sizeof(u64))))
goto out;
ret = 0;
@@ -1927,55 +2533,91 @@ static int ethtool_get_stats(struct net_device *dev, void __user *useraddr)
return ret;
}
-static int ethtool_get_phy_stats(struct net_device *dev, void __user *useraddr)
+static int ethtool_vzalloc_stats_array(int n_stats, u64 **data)
{
- const struct ethtool_ops *ops = dev->ethtool_ops;
- struct phy_device *phydev = dev->phydev;
- struct ethtool_stats stats;
- u64 *data;
- int ret, n_stats;
-
- if (!phydev && (!ops->get_ethtool_phy_stats || !ops->get_sset_count))
- return -EOPNOTSUPP;
-
- if (dev->phydev && !ops->get_ethtool_phy_stats)
- n_stats = phy_ethtool_get_sset_count(dev->phydev);
- else
- n_stats = ops->get_sset_count(dev, ETH_SS_PHY_STATS);
if (n_stats < 0)
return n_stats;
if (n_stats > S32_MAX / sizeof(u64))
return -ENOMEM;
- WARN_ON_ONCE(!n_stats);
+ 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;
- stats.n_stats = n_stats;
+ if (phydev)
+ ret = ethtool_get_phy_stats_phydev(phydev, &stats, &data);
- if (n_stats) {
- data = vzalloc(array_size(n_stats, sizeof(u64)));
- if (!data)
- return -ENOMEM;
+ if (ret == -EOPNOTSUPP)
+ ret = ethtool_get_phy_stats_ethtool(dev, &stats, &data);
- if (dev->phydev && !ops->get_ethtool_phy_stats) {
- ret = phy_ethtool_get_stats(dev->phydev, &stats, data);
- if (ret < 0)
- goto out;
- } else {
- ops->get_ethtool_phy_stats(dev, &stats, data);
- }
- } else {
- data = NULL;
- }
+ if (ret)
+ goto out;
- ret = -EFAULT;
- if (copy_to_user(useraddr, &stats, sizeof(stats)))
+ if (copy_to_user(useraddr, &stats, sizeof(stats))) {
+ ret = -EFAULT;
goto out;
+ }
+
useraddr += sizeof(stats);
- if (n_stats && copy_to_user(useraddr, data, n_stats * sizeof(u64)))
- goto out;
- ret = 0;
+ if (copy_to_user(useraddr, data, array_size(stats.n_stats, sizeof(u64))))
+ ret = -EFAULT;
out:
vfree(data);
@@ -2045,19 +2687,15 @@ static int ethtool_set_value(struct net_device *dev, char __user *useraddr,
return actor(dev, edata.data);
}
-static noinline_for_stack int ethtool_flash_device(struct net_device *dev,
- char __user *useraddr)
+static int
+ethtool_flash_device(struct net_device *dev, struct ethtool_devlink_compat *req)
{
- struct ethtool_flash efl;
-
- if (copy_from_user(&efl, useraddr, sizeof(efl)))
- return -EFAULT;
- efl.data[ETHTOOL_FLASH_MAX_FILENAME - 1] = 0;
-
- if (!dev->ethtool_ops->flash_device)
- return devlink_compat_flash_update(dev, efl.data);
+ if (!dev->ethtool_ops->flash_device) {
+ req->devlink = netdev_to_devlink_get(dev);
+ return 0;
+ }
- return dev->ethtool_ops->flash_device(dev, &efl);
+ return dev->ethtool_ops->flash_device(dev, &req->efl);
}
static int ethtool_set_dump(struct net_device *dev,
@@ -2161,25 +2799,35 @@ out:
static int ethtool_get_ts_info(struct net_device *dev, void __user *useraddr)
{
- struct ethtool_ts_info info;
+ struct kernel_ethtool_ts_info kernel_info;
+ struct ethtool_ts_info info = {};
int err;
- err = __ethtool_get_ts_info(dev, &info);
+ err = __ethtool_get_ts_info(dev, &kernel_info);
if (err)
return err;
+ info.cmd = kernel_info.cmd;
+ info.so_timestamping = kernel_info.so_timestamping;
+ info.phc_index = kernel_info.phc_index;
+ info.tx_types = kernel_info.tx_types;
+ info.rx_filters = kernel_info.rx_filters;
+
if (copy_to_user(useraddr, &info, sizeof(info)))
return -EFAULT;
return 0;
}
-static int __ethtool_get_module_info(struct net_device *dev,
- struct ethtool_modinfo *modinfo)
+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->ethtool->module_fw_flash_in_progress)
+ return -EBUSY;
+
if (dev->sfp_bus)
return sfp_get_module_info(dev->sfp_bus, modinfo);
@@ -2201,7 +2849,7 @@ static int ethtool_get_module_info(struct net_device *dev,
if (copy_from_user(&modinfo, useraddr, sizeof(modinfo)))
return -EFAULT;
- ret = __ethtool_get_module_info(dev, &modinfo);
+ ret = ethtool_get_module_info_call(dev, &modinfo);
if (ret)
return ret;
@@ -2211,12 +2859,15 @@ static int ethtool_get_module_info(struct net_device *dev,
return 0;
}
-static int __ethtool_get_module_eeprom(struct net_device *dev,
- struct ethtool_eeprom *ee, u8 *data)
+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->ethtool->module_fw_flash_in_progress)
+ return -EBUSY;
+
if (dev->sfp_bus)
return sfp_get_module_eeprom(dev->sfp_bus, ee, data);
@@ -2235,12 +2886,12 @@ static int ethtool_get_module_eeprom(struct net_device *dev,
int ret;
struct ethtool_modinfo modinfo;
- ret = __ethtool_get_module_info(dev, &modinfo);
+ ret = ethtool_get_module_info_call(dev, &modinfo);
if (ret)
return ret;
return ethtool_get_any_eeprom(dev, useraddr,
- __ethtool_get_module_eeprom,
+ ethtool_get_module_eeprom_call,
modinfo.eeprom_len);
}
@@ -2249,6 +2900,7 @@ 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;
@@ -2279,7 +2931,7 @@ static int ethtool_get_tunable(struct net_device *dev, void __user *useraddr)
ret = ethtool_tunable_valid(&tuna);
if (ret)
return ret;
- data = kmalloc(tuna.len, GFP_USER);
+ data = kzalloc(tuna.len, GFP_USER);
if (!data)
return -ENOMEM;
ret = ops->get_tunable(dev, &tuna, data);
@@ -2431,7 +3083,7 @@ static int noinline_for_stack ethtool_set_per_queue(struct net_device *dev,
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)
@@ -2457,25 +3109,30 @@ static int ethtool_phy_tunable_valid(const struct ethtool_tunable *tuna)
static int get_phy_tunable(struct net_device *dev, void __user *useraddr)
{
- int ret;
- struct ethtool_tunable tuna;
struct phy_device *phydev = dev->phydev;
+ struct ethtool_tunable tuna;
+ bool phy_drv_tunable;
void *data;
+ int ret;
- if (!(phydev && phydev->drv && phydev->drv->get_tunable))
+ 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 = kmalloc(tuna.len, GFP_USER);
+ data = kzalloc(tuna.len, GFP_USER);
if (!data)
return -ENOMEM;
- mutex_lock(&phydev->lock);
- ret = phydev->drv->get_tunable(phydev, &tuna, data);
- mutex_unlock(&phydev->lock);
+ 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);
@@ -2491,12 +3148,14 @@ out:
static int set_phy_tunable(struct net_device *dev, void __user *useraddr)
{
- int ret;
- struct ethtool_tunable tuna;
struct phy_device *phydev = dev->phydev;
+ struct ethtool_tunable tuna;
+ bool phy_drv_tunable;
void *data;
+ int ret;
- if (!(phydev && phydev->drv && phydev->drv->set_tunable))
+ 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;
@@ -2507,9 +3166,13 @@ static int set_phy_tunable(struct net_device *dev, void __user *useraddr)
data = memdup_user(useraddr, tuna.len);
if (IS_ERR(data))
return PTR_ERR(data);
- mutex_lock(&phydev->lock);
- ret = phydev->drv->set_tunable(phydev, &tuna, data);
- mutex_unlock(&phydev->lock);
+ 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;
@@ -2527,6 +3190,9 @@ static int ethtool_get_fecparam(struct net_device *dev, void __user *useraddr)
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;
@@ -2542,25 +3208,30 @@ static int ethtool_set_fecparam(struct net_device *dev, void __user *useraddr)
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 */
-int dev_ethtool(struct net *net, struct ifreq *ifr)
+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 = __dev_get_by_name(net, ifr->ifr_name);
- void __user *useraddr = ifr->ifr_data;
- u32 ethcmd, sub_cmd;
+ struct net_device *dev;
+ u32 sub_cmd;
int rc;
netdev_features_t old_features;
- if (!dev || !netif_device_present(dev))
+ dev = __dev_get_by_name(net, ifr->ifr_name);
+ if (!dev)
return -ENODEV;
- if (copy_from_user(&ethcmd, useraddr, sizeof(ethcmd)))
- return -EFAULT;
-
if (ethcmd == ETHTOOL_PERQUEUE) {
if (copy_from_user(&sub_cmd, useraddr + sizeof(ethcmd), sizeof(sub_cmd)))
return -EFAULT;
@@ -2611,10 +3282,19 @@ int dev_ethtool(struct net *net, struct ifreq *ifr)
return -EPERM;
}
+ netdev_lock_ops(dev);
+ 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)
- return rc;
+ if (rc < 0)
+ goto out;
}
old_features = dev->features;
@@ -2626,7 +3306,7 @@ int dev_ethtool(struct net *net, struct ifreq *ifr)
rc = ethtool_set_settings(dev, useraddr);
break;
case ETHTOOL_GDRVINFO:
- rc = ethtool_get_drvinfo(dev, useraddr);
+ rc = ethtool_get_drvinfo(dev, devlink_state);
break;
case ETHTOOL_GREGS:
rc = ethtool_get_regs(dev, useraddr);
@@ -2645,7 +3325,7 @@ int dev_ethtool(struct net *net, struct ifreq *ifr)
rc = ethtool_set_value_void(dev, useraddr,
dev->ethtool_ops->set_msglevel);
if (!rc)
- ethtool_notify(dev, ETHTOOL_MSG_DEBUG_NTF, NULL);
+ ethtool_notify(dev, ETHTOOL_MSG_DEBUG_NTF);
break;
case ETHTOOL_GEEE:
rc = ethtool_get_eee(dev, useraddr);
@@ -2709,26 +3389,32 @@ int dev_ethtool(struct net *net, struct ifreq *ifr)
rc = ethtool_get_value(dev, useraddr, ethcmd,
dev->ethtool_ops->get_priv_flags);
if (!rc)
- ethtool_notify(dev, ETHTOOL_MSG_PRIVFLAGS_NTF, NULL);
+ ethtool_notify(dev, ETHTOOL_MSG_PRIVFLAGS_NTF);
break;
case ETHTOOL_SPFLAGS:
rc = ethtool_set_value(dev, useraddr,
dev->ethtool_ops->set_priv_flags);
break;
case ETHTOOL_GRXFH:
+ rc = ethtool_get_rxfh_fields(dev, ethcmd, useraddr);
+ break;
+ case ETHTOOL_SRXFH:
+ rc = ethtool_set_rxfh_fields(dev, ethcmd, useraddr);
+ break;
case ETHTOOL_GRXRINGS:
+ rc = ethtool_get_rxrings(dev, ethcmd, useraddr);
+ break;
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, useraddr);
+ rc = ethtool_flash_device(dev, devlink_state);
break;
case ETHTOOL_RESET:
rc = ethtool_reset(dev, useraddr);
@@ -2833,10 +3519,68 @@ int dev_ethtool(struct net *net, struct ifreq *ifr)
if (old_features != dev->features)
netdev_features_change(dev);
+out:
+ if (dev->dev.parent)
+ pm_runtime_put(dev->dev.parent);
+ netdev_unlock_ops(dev);
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(&ethcmd, 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 {
@@ -2859,7 +3603,6 @@ 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;
- static struct in6_addr zero_addr = {};
struct ethtool_rx_flow_match *match;
struct ethtool_rx_flow_rule *flow;
struct flow_action_entry *act;
@@ -2928,7 +3671,7 @@ ethtool_rx_flow_rule_create(const struct ethtool_rx_flow_spec_input *input)
if (v4_m_spec->ip4src ||
v4_m_spec->ip4dst) {
match->dissector.used_keys |=
- BIT(FLOW_DISSECTOR_KEY_IPV4_ADDRS);
+ BIT_ULL(FLOW_DISSECTOR_KEY_IPV4_ADDRS);
match->dissector.offset[FLOW_DISSECTOR_KEY_IPV4_ADDRS] =
offsetof(struct ethtool_rx_flow_key, ipv4);
}
@@ -2943,7 +3686,7 @@ ethtool_rx_flow_rule_create(const struct ethtool_rx_flow_spec_input *input)
if (v4_m_spec->psrc ||
v4_m_spec->pdst) {
match->dissector.used_keys |=
- BIT(FLOW_DISSECTOR_KEY_PORTS);
+ BIT_ULL(FLOW_DISSECTOR_KEY_PORTS);
match->dissector.offset[FLOW_DISSECTOR_KEY_PORTS] =
offsetof(struct ethtool_rx_flow_key, tp);
}
@@ -2965,22 +3708,22 @@ ethtool_rx_flow_rule_create(const struct ethtool_rx_flow_spec_input *input)
v6_spec = &fs->h_u.tcp_ip6_spec;
v6_m_spec = &fs->m_u.tcp_ip6_spec;
- if (memcmp(v6_m_spec->ip6src, &zero_addr, sizeof(zero_addr))) {
+ 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 (memcmp(v6_m_spec->ip6dst, &zero_addr, sizeof(zero_addr))) {
+ 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 (memcmp(v6_m_spec->ip6src, &zero_addr, sizeof(zero_addr)) ||
- memcmp(v6_m_spec->ip6src, &zero_addr, sizeof(zero_addr))) {
+ 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(FLOW_DISSECTOR_KEY_IPV6_ADDRS);
+ BIT_ULL(FLOW_DISSECTOR_KEY_IPV6_ADDRS);
match->dissector.offset[FLOW_DISSECTOR_KEY_IPV6_ADDRS] =
offsetof(struct ethtool_rx_flow_key, ipv6);
}
@@ -2995,7 +3738,7 @@ ethtool_rx_flow_rule_create(const struct ethtool_rx_flow_spec_input *input)
if (v6_m_spec->psrc ||
v6_m_spec->pdst) {
match->dissector.used_keys |=
- BIT(FLOW_DISSECTOR_KEY_PORTS);
+ BIT_ULL(FLOW_DISSECTOR_KEY_PORTS);
match->dissector.offset[FLOW_DISSECTOR_KEY_PORTS] =
offsetof(struct ethtool_rx_flow_key, tp);
}
@@ -3003,7 +3746,7 @@ ethtool_rx_flow_rule_create(const struct ethtool_rx_flow_spec_input *input)
match->key.ip.tos = v6_spec->tclass;
match->mask.ip.tos = v6_m_spec->tclass;
match->dissector.used_keys |=
- BIT(FLOW_DISSECTOR_KEY_IP);
+ BIT_ULL(FLOW_DISSECTOR_KEY_IP);
match->dissector.offset[FLOW_DISSECTOR_KEY_IP] =
offsetof(struct ethtool_rx_flow_key, ip);
}
@@ -3018,15 +3761,16 @@ ethtool_rx_flow_rule_create(const struct ethtool_rx_flow_spec_input *input)
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->mask.basic.ip_proto = 0xff;
- match->dissector.used_keys |= BIT(FLOW_DISSECTOR_KEY_BASIC);
+ match->dissector.used_keys |= BIT_ULL(FLOW_DISSECTOR_KEY_BASIC);
match->dissector.offset[FLOW_DISSECTOR_KEY_BASIC] =
offsetof(struct ethtool_rx_flow_key, basic);
@@ -3059,7 +3803,7 @@ ethtool_rx_flow_rule_create(const struct ethtool_rx_flow_spec_input *input)
if (ext_m_spec->vlan_etype ||
ext_m_spec->vlan_tci) {
match->dissector.used_keys |=
- BIT(FLOW_DISSECTOR_KEY_VLAN);
+ BIT_ULL(FLOW_DISSECTOR_KEY_VLAN);
match->dissector.offset[FLOW_DISSECTOR_KEY_VLAN] =
offsetof(struct ethtool_rx_flow_key, vlan);
}
@@ -3074,7 +3818,7 @@ ethtool_rx_flow_rule_create(const struct ethtool_rx_flow_spec_input *input)
ETH_ALEN);
match->dissector.used_keys |=
- BIT(FLOW_DISSECTOR_KEY_ETH_ADDRS);
+ BIT_ULL(FLOW_DISSECTOR_KEY_ETH_ADDRS);
match->dissector.offset[FLOW_DISSECTOR_KEY_ETH_ADDRS] =
offsetof(struct ethtool_rx_flow_key, eth_addrs);
}