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ethtool: provide link mode information with LINKMODES_GET request

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Implement LINKMODES_GET netlink request to get link modes related
information provided by ETHTOOL_GLINKSETTINGS and ETHTOOL_GSET ioctl
commands.

This request provides supported, advertised and peer advertised link modes,
autonegotiation flag, speed and duplex.

LINKMODES_GET request can be used with NLM_F_DUMP (without device
identification) to request the information for all devices in current
network namespace providing the data.

Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Michal Kubecek
2019-12-27 15:56:08 +01:00
committed by David S. Miller
parent 73286734c1
commit f625aa9be8
7 changed files with 207 additions and 1 deletions
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18
include/uapi/linux/ethtool_netlink.h
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@@ -17,6 +17,7 @@ enum {
ETHTOOL_MSG_STRSET_GET,
ETHTOOL_MSG_LINKINFO_GET,
ETHTOOL_MSG_LINKINFO_SET,
ETHTOOL_MSG_LINKMODES_GET,
/* add new constants above here */
__ETHTOOL_MSG_USER_CNT,
@@ -29,6 +30,7 @@ enum {
ETHTOOL_MSG_STRSET_GET_REPLY,
ETHTOOL_MSG_LINKINFO_GET_REPLY,
ETHTOOL_MSG_LINKINFO_NTF,
ETHTOOL_MSG_LINKMODES_GET_REPLY,
/* add new constants above here */
__ETHTOOL_MSG_KERNEL_CNT,
@@ -161,6 +163,22 @@ enum {
ETHTOOL_A_LINKINFO_MAX = __ETHTOOL_A_LINKINFO_CNT - 1
};
/* LINKMODES */
enum {
ETHTOOL_A_LINKMODES_UNSPEC,
ETHTOOL_A_LINKMODES_HEADER, /* nest - _A_HEADER_* */
ETHTOOL_A_LINKMODES_AUTONEG, /* u8 */
ETHTOOL_A_LINKMODES_OURS, /* bitset */
ETHTOOL_A_LINKMODES_PEER, /* bitset */
ETHTOOL_A_LINKMODES_SPEED, /* u32 */
ETHTOOL_A_LINKMODES_DUPLEX, /* u8 */
/* add new constants above here */
__ETHTOOL_A_LINKMODES_CNT,
ETHTOOL_A_LINKMODES_MAX = __ETHTOOL_A_LINKMODES_CNT - 1
};
/* generic netlink info */
#define ETHTOOL_GENL_NAME "ethtool"
#define ETHTOOL_GENL_VERSION 1