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-rw-r--r--include/uapi/linux/ethtool.h6
-rw-r--r--net/core/ethtool.c12
2 files changed, 18 insertions, 0 deletions
diff --git a/include/uapi/linux/ethtool.h b/include/uapi/linux/ethtool.h
index 0594933cdf55..cd67aec187d9 100644
--- a/include/uapi/linux/ethtool.h
+++ b/include/uapi/linux/ethtool.h
@@ -215,6 +215,11 @@ enum tunable_id {
ETHTOOL_ID_UNSPEC,
ETHTOOL_RX_COPYBREAK,
ETHTOOL_TX_COPYBREAK,
+ /*
+ * Add your fresh new tubale attribute above and remember to update
+ * tunable_strings[] in net/core/ethtool.c
+ */
+ __ETHTOOL_TUNABLE_COUNT,
};
enum tunable_type_id {
@@ -545,6 +550,7 @@ enum ethtool_stringset {
ETH_SS_NTUPLE_FILTERS,
ETH_SS_FEATURES,
ETH_SS_RSS_HASH_FUNCS,
+ ETH_SS_TUNABLES,
};
/**
diff --git a/net/core/ethtool.c b/net/core/ethtool.c
index eb0c3ace7458..b495ab1797fa 100644
--- a/net/core/ethtool.c
+++ b/net/core/ethtool.c
@@ -106,6 +106,13 @@ rss_hash_func_strings[ETH_RSS_HASH_FUNCS_COUNT][ETH_GSTRING_LEN] = {
[ETH_RSS_HASH_XOR_BIT] = "xor",
};
+static const char
+tunable_strings[__ETHTOOL_TUNABLE_COUNT][ETH_GSTRING_LEN] = {
+ [ETHTOOL_ID_UNSPEC] = "Unspec",
+ [ETHTOOL_RX_COPYBREAK] = "rx-copybreak",
+ [ETHTOOL_TX_COPYBREAK] = "tx-copybreak",
+};
+
static int ethtool_get_features(struct net_device *dev, void __user *useraddr)
{
struct ethtool_gfeatures cmd = {
@@ -194,6 +201,9 @@ static int __ethtool_get_sset_count(struct net_device *dev, int sset)
if (sset == ETH_SS_RSS_HASH_FUNCS)
return ARRAY_SIZE(rss_hash_func_strings);
+ if (sset == ETH_SS_TUNABLES)
+ return ARRAY_SIZE(tunable_strings);
+
if (ops->get_sset_count && ops->get_strings)
return ops->get_sset_count(dev, sset);
else
@@ -211,6 +221,8 @@ static void __ethtool_get_strings(struct net_device *dev,
else if (stringset == ETH_SS_RSS_HASH_FUNCS)
memcpy(data, rss_hash_func_strings,
sizeof(rss_hash_func_strings));
+ else if (stringset == ETH_SS_TUNABLES)
+ memcpy(data, tunable_strings, sizeof(tunable_strings));
else
/* ops->get_strings is valid because checked earlier */
ops->get_strings(dev, stringset, data);