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Subject[RFC PATCH net-next v3 14/21] ethtool: provide link mode names as a string set
Date
Add table of ethernet link mode names and make it available as a string set
to userspace GET_STRSET requests.

Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
---
include/uapi/linux/ethtool.h | 2 ++
net/ethtool/netlink.c | 58 ++++++++++++++++++++++++++++++++++++
net/ethtool/netlink.h | 1 +
net/ethtool/strset.c | 6 ++++
4 files changed, 67 insertions(+)

diff --git a/include/uapi/linux/ethtool.h b/include/uapi/linux/ethtool.h
index 1b58637d3a4d..ba96a691bfd4 100644
--- a/include/uapi/linux/ethtool.h
+++ b/include/uapi/linux/ethtool.h
@@ -566,6 +566,7 @@ struct ethtool_pauseparam {
* @ETH_SS_TSTAMP_SOF: timestamping flag names
* @ETH_SS_TSTAMP_TX_TYPE: timestamping Tx type names
* @ETH_SS_TSTAMP_RX_FILTER: timestamping Rx filter names
+ * @ETH_SS_LINK_MODES: link mode names
*/
enum ethtool_stringset {
ETH_SS_TEST = 0,
@@ -580,6 +581,7 @@ enum ethtool_stringset {
ETH_SS_TSTAMP_SOF,
ETH_SS_TSTAMP_TX_TYPE,
ETH_SS_TSTAMP_RX_FILTER,
+ ETH_SS_LINK_MODES,

ETH_SS_COUNT
};
diff --git a/net/ethtool/netlink.c b/net/ethtool/netlink.c
index e27dec427414..1ff6696ad716 100644
--- a/net/ethtool/netlink.c
+++ b/net/ethtool/netlink.c
@@ -6,6 +6,61 @@

u32 ethnl_bcast_seq;

+const char *const link_mode_names[] = {
+ [ETHTOOL_LINK_MODE_10baseT_Half_BIT] = "10baseT/Half",
+ [ETHTOOL_LINK_MODE_10baseT_Full_BIT] = "10baseT/Full",
+ [ETHTOOL_LINK_MODE_100baseT_Half_BIT] = "100baseT/Half",
+ [ETHTOOL_LINK_MODE_100baseT_Full_BIT] = "100baseT/Full",
+ [ETHTOOL_LINK_MODE_1000baseT_Half_BIT] = "1000baseT/Half",
+ [ETHTOOL_LINK_MODE_1000baseT_Full_BIT] = "1000baseT/Full",
+ [ETHTOOL_LINK_MODE_Autoneg_BIT] = "Autoneg",
+ [ETHTOOL_LINK_MODE_TP_BIT] = "TP",
+ [ETHTOOL_LINK_MODE_AUI_BIT] = "AUI",
+ [ETHTOOL_LINK_MODE_MII_BIT] = "MII",
+ [ETHTOOL_LINK_MODE_FIBRE_BIT] = "FIBRE",
+ [ETHTOOL_LINK_MODE_BNC_BIT] = "BNC",
+ [ETHTOOL_LINK_MODE_10000baseT_Full_BIT] = "10000baseT/Full",
+ [ETHTOOL_LINK_MODE_Pause_BIT] = "Pause",
+ [ETHTOOL_LINK_MODE_Asym_Pause_BIT] = "Asym_Pause",
+ [ETHTOOL_LINK_MODE_2500baseX_Full_BIT] = "2500baseX/Full",
+ [ETHTOOL_LINK_MODE_Backplane_BIT] = "Backplane",
+ [ETHTOOL_LINK_MODE_1000baseKX_Full_BIT] = "1000baseKX/Full",
+ [ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT] = "10000baseKX4/Full",
+ [ETHTOOL_LINK_MODE_10000baseKR_Full_BIT] = "10000baseKR/Full",
+ [ETHTOOL_LINK_MODE_10000baseR_FEC_BIT] = "10000baseR/FEC",
+ [ETHTOOL_LINK_MODE_20000baseMLD2_Full_BIT] = "20000baseMLD2/Full",
+ [ETHTOOL_LINK_MODE_20000baseKR2_Full_BIT] = "20000baseKR2/Full",
+ [ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT] = "40000baseKR4/Full",
+ [ETHTOOL_LINK_MODE_40000baseCR4_Full_BIT] = "40000baseCR4/Full",
+ [ETHTOOL_LINK_MODE_40000baseSR4_Full_BIT] = "40000baseSR4/Full",
+ [ETHTOOL_LINK_MODE_40000baseLR4_Full_BIT] = "40000baseLR4/Full",
+ [ETHTOOL_LINK_MODE_56000baseKR4_Full_BIT] = "56000baseKR4/Full",
+ [ETHTOOL_LINK_MODE_56000baseCR4_Full_BIT] = "56000baseCR4/Full",
+ [ETHTOOL_LINK_MODE_56000baseSR4_Full_BIT] = "56000baseSR4/Full",
+ [ETHTOOL_LINK_MODE_56000baseLR4_Full_BIT] = "56000baseLR4/Full",
+ [ETHTOOL_LINK_MODE_25000baseCR_Full_BIT] = "25000baseCR/Full",
+ [ETHTOOL_LINK_MODE_25000baseKR_Full_BIT] = "25000baseKR/Full",
+ [ETHTOOL_LINK_MODE_25000baseSR_Full_BIT] = "25000baseSR/Full",
+ [ETHTOOL_LINK_MODE_50000baseCR2_Full_BIT] = "50000baseCR2/Full",
+ [ETHTOOL_LINK_MODE_50000baseKR2_Full_BIT] = "50000baseKR2/Full",
+ [ETHTOOL_LINK_MODE_100000baseKR4_Full_BIT] = "100000baseKR4/Full",
+ [ETHTOOL_LINK_MODE_100000baseSR4_Full_BIT] = "100000baseSR4/Full",
+ [ETHTOOL_LINK_MODE_100000baseCR4_Full_BIT] = "100000baseCR4/Full",
+ [ETHTOOL_LINK_MODE_100000baseLR4_ER4_Full_BIT] = "100000baseLR4/ER4_Full",
+ [ETHTOOL_LINK_MODE_50000baseSR2_Full_BIT] = "50000baseSR2/Full",
+ [ETHTOOL_LINK_MODE_1000baseX_Full_BIT] = "1000baseX/Full",
+ [ETHTOOL_LINK_MODE_10000baseCR_Full_BIT] = "10000baseCR/Full",
+ [ETHTOOL_LINK_MODE_10000baseSR_Full_BIT] = "10000baseSR/Full",
+ [ETHTOOL_LINK_MODE_10000baseLR_Full_BIT] = "10000baseLR/Full",
+ [ETHTOOL_LINK_MODE_10000baseLRM_Full_BIT] = "10000baseLRM/Full",
+ [ETHTOOL_LINK_MODE_10000baseER_Full_BIT] = "10000baseER/Full",
+ [ETHTOOL_LINK_MODE_2500baseT_Full_BIT] = "2500baseT/Full",
+ [ETHTOOL_LINK_MODE_5000baseT_Full_BIT] = "5000baseT/Full",
+ [ETHTOOL_LINK_MODE_FEC_NONE_BIT] = "None",
+ [ETHTOOL_LINK_MODE_FEC_RS_BIT] = "RS",
+ [ETHTOOL_LINK_MODE_FEC_BASER_BIT] = "BASER",
+};
+
static const struct nla_policy dev_policy[ETHA_DEV_MAX + 1] = {
[ETHA_DEV_UNSPEC] = { .type = NLA_REJECT },
[ETHA_DEV_INDEX] = { .type = NLA_U32 },
@@ -541,6 +596,9 @@ static int __init ethnl_init(void)
{
int ret;

+ BUILD_BUG_ON(ARRAY_SIZE(link_mode_names) <
+ __ETHTOOL_LINK_MODE_MASK_NBITS);
+
ret = genl_register_family(&ethtool_genl_family);
if (ret < 0)
panic("ethtool: could not register genetlink family\n");
diff --git a/net/ethtool/netlink.h b/net/ethtool/netlink.h
index 82a4c1f398d8..800ea57ab0de 100644
--- a/net/ethtool/netlink.h
+++ b/net/ethtool/netlink.h
@@ -23,6 +23,7 @@ extern struct genl_family ethtool_genl_family;
extern const char *const so_timestamping_labels[];
extern const char *const tstamp_tx_type_labels[];
extern const char *const tstamp_rx_filter_labels[];
+extern const char *const link_mode_names[];

struct net_device *ethnl_dev_get(struct genl_info *info, struct nlattr *nest);
int ethnl_fill_dev(struct sk_buff *msg, struct net_device *dev, u16 attrtype);
diff --git a/net/ethtool/strset.c b/net/ethtool/strset.c
index 5c74498d9c72..dd87d7db8b61 100644
--- a/net/ethtool/strset.c
+++ b/net/ethtool/strset.c
@@ -85,6 +85,12 @@ static const struct strset_info info_template[] = {
.count = __HWTSTAMP_FILTER_COUNT,
.data = { .simple = tstamp_rx_filter_labels },
},
+ [ETH_SS_LINK_MODES] = {
+ .type = ETH_SS_TYPE_SIMPLE,
+ .per_dev = false,
+ .count = __ETHTOOL_LINK_MODE_MASK_NBITS,
+ .data = { .simple = link_mode_names },
+ },
};

struct strset_data {
--
2.20.1
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