[PATCH ethtool v2 2/5] netlink: settings: Add netlink support for lanes parameter

[Danielle Ratson]

Add support for "ethtool -s <dev> lanes N ..." for setting a specific
number of lanes.

Signed-off-by: Danielle Ratson <daniel...@nvidia.com>
Reviewed-by: Jiri Pirko <j...@nvidia.com>
---
 ethtool.c          | 1 +
 netlink/settings.c | 8 ++++++++
 2 files changed, 9 insertions(+)

diff --git a/ethtool.c b/ethtool.c
index 585aafa..fcb09f7 100644
--- a/ethtool.c
+++ b/ethtool.c
@@ -5620,6 +5620,7 @@ static const struct option args[] = {
                .nlfunc = nl_sset,
                .help   = "Change generic options",
                .xhelp  = "             [ speed %d ]\n"
+                         "             [ lanes %d ]\n"
                          "             [ duplex half|full ]\n"
                          "             [ port tp|aui|bnc|mii|fibre|da ]\n"
                          "             [ mdix auto|on|off ]\n"
diff --git a/netlink/settings.c b/netlink/settings.c
index 90c28b1..6cb5d5b 100644
--- a/netlink/settings.c
+++ b/netlink/settings.c
@@ -20,6 +20,7 @@
 struct link_mode_info {
        enum link_mode_class    class;
        u32                     speed;
+       u32                     lanes;
        u8                      duplex;
 };
 
@@ -1067,6 +1068,13 @@ static const struct param_parser sset_params[] = {
                .handler        = nl_parse_direct_u32,
                .min_argc       = 1,
        },
+       {
+               .arg            = "lanes",
+               .group          = ETHTOOL_MSG_LINKMODES_SET,
+               .type           = ETHTOOL_A_LINKMODES_LANES,
+               .handler        = nl_parse_direct_u32,
+               .min_argc       = 1,
+       },
        {
                .arg            = "duplex",
                .group          = ETHTOOL_MSG_LINKMODES_SET,
-- 
2.26.2