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platform: add APIs to allow link negotiation management

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Added platform functions to retrieve device link mode status and to
switch from auto to manual link negotiation:
nm_platform_ethtool_get_link_settings
nm_platform_ethtool_set_link_settings
This commit is contained in:
Francesco Giudici
2016-09-10 16:48:01 +02:00
parent 7b16b28a62
commit ab0954b0e5
5 changed files with 107 additions and 24 deletions
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83
src/platform/nm-platform-utils.c
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@@ -40,6 +40,13 @@
/******************************************************************
* ethtool
******************************************************************/
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,27)
#define ethtool_cmd_speed(pedata) ((pedata)->speed)
#define ethtool_cmd_speed_set(pedata, speed) \
G_STMT_START { (pedata)->speed = (guint16) (speed); } G_STMT_END
#endif
static gboolean
ethtool_get (const char *name, gpointer edata)
@@ -261,29 +268,85 @@ nmp_utils_ethtool_get_wake_on_lan (const char *ifname)
}
gboolean
nmp_utils_ethtool_get_link_speed (const char *ifname, guint32 *out_speed)
nmp_utils_ethtool_get_link_settings (const char *ifname,
gboolean *out_autoneg,
guint32 *out_speed,
NMPlatformLinkDuplexType *out_duplex)
{
struct ethtool_cmd edata = {
.cmd = ETHTOOL_GSET,
};
guint32 speed;
if (!ethtool_get (ifname, &edata))
return FALSE;
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,27)
speed = edata.speed;
#else
speed = ethtool_cmd_speed (&edata);
#endif
if (speed == G_MAXUINT16 || speed == G_MAXUINT32)
speed = 0;
if (out_autoneg)
*out_autoneg = (edata.autoneg == AUTONEG_ENABLE);
if (out_speed) {
guint32 speed;
speed = ethtool_cmd_speed (&edata);
if (speed == G_MAXUINT16 || speed == G_MAXUINT32)
speed = 0;
if (out_speed)
*out_speed = speed;
}
if (out_duplex) {
switch (edata.duplex) {
case DUPLEX_HALF:
*out_duplex = NM_PLATFORM_LINK_DUPLEX_HALF;
break;
case DUPLEX_FULL:
*out_duplex = NM_PLATFORM_LINK_DUPLEX_FULL;
break;
default: /* DUPLEX_UNKNOWN */
*out_duplex = NM_PLATFORM_LINK_DUPLEX_UNKNOWN;
break;
}
}
return TRUE;
}
gboolean
nmp_utils_ethtool_set_link_settings (const char *ifname, gboolean autoneg, guint32 speed, NMPlatformLinkDuplexType duplex)
{
struct ethtool_cmd edata = {
.cmd = ETHTOOL_GSET,
};
/* retrieve first current settings */
if (!ethtool_get (ifname, &edata))
return FALSE;
/* then change the needed ones */
edata.cmd = ETHTOOL_SSET;
if (autoneg) {
edata.autoneg = AUTONEG_ENABLE;
edata.advertising = edata.supported;
} else {
edata.autoneg = AUTONEG_DISABLE;
if (speed)
ethtool_cmd_speed_set (&edata, speed);
switch (duplex) {
case NM_PLATFORM_LINK_DUPLEX_HALF:
edata.duplex = DUPLEX_HALF;
break;
case NM_PLATFORM_LINK_DUPLEX_FULL:
edata.duplex = DUPLEX_FULL;
break;
default: /* NM_PLATFORM_LINK_DUPLEX_UNSET */
break;
}
}
return ethtool_get (ifname, &edata);
}
gboolean
nmp_utils_ethtool_set_wake_on_lan (const char *ifname,
NMSettingWiredWakeOnLan wol,