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net: thunderx: Switchon carrier only upon interface link up

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Call netif_carrier_on() only if interface's link is up. Switching this on
upon IFF_UP by default, is causing issues with ethernet channel bonding
in LACP mode. Initial NETDEV_CHANGE notification was being skipped.

Also fixed some issues with link/speed/duplex reporting via ethtool.

Signed-off-by: Sunil Goutham <sgoutham@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Sunil Goutham 2015-12-02 15:36:16 +05:30 committed by David S. Miller
parent 006394a7cb
commit 0b72a9a106
3 changed files with 18 additions and 4 deletions
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16
drivers/net/ethernet/cavium/thunder/nicvf_ethtool.c
View File

@ -112,6 +112,13 @@ static int nicvf_get_settings(struct net_device *netdev,
cmd->supported = 0; cmd->supported = 0;
cmd->transceiver = XCVR_EXTERNAL; cmd->transceiver = XCVR_EXTERNAL;
if (!nic->link_up) {
cmd->duplex = DUPLEX_UNKNOWN;
ethtool_cmd_speed_set(cmd, SPEED_UNKNOWN);
return 0;
}
if (nic->speed <= 1000) { if (nic->speed <= 1000) {
cmd->port = PORT_MII; cmd->port = PORT_MII;
cmd->autoneg = AUTONEG_ENABLE; cmd->autoneg = AUTONEG_ENABLE;
@ -125,6 +132,13 @@ static int nicvf_get_settings(struct net_device *netdev,
return 0; return 0;
} }
static u32 nicvf_get_link(struct net_device *netdev)
{
struct nicvf *nic = netdev_priv(netdev);
return nic->link_up;
}
static void nicvf_get_drvinfo(struct net_device *netdev, static void nicvf_get_drvinfo(struct net_device *netdev,
struct ethtool_drvinfo *info) struct ethtool_drvinfo *info)
{ {
@ -660,7 +674,7 @@ static int nicvf_set_channels(struct net_device *dev,
static const struct ethtool_ops nicvf_ethtool_ops = { static const struct ethtool_ops nicvf_ethtool_ops = {
.get_settings = nicvf_get_settings, .get_settings = nicvf_get_settings,
.get_link = ethtool_op_get_link, .get_link = nicvf_get_link,
.get_drvinfo = nicvf_get_drvinfo, .get_drvinfo = nicvf_get_drvinfo,
.get_msglevel = nicvf_get_msglevel, .get_msglevel = nicvf_get_msglevel,
.set_msglevel = nicvf_set_msglevel, .set_msglevel = nicvf_set_msglevel,

4
drivers/net/ethernet/cavium/thunder/nicvf_main.c
View File

@ -1057,6 +1057,7 @@ int nicvf_stop(struct net_device *netdev)
netif_carrier_off(netdev); netif_carrier_off(netdev);
netif_tx_stop_all_queues(nic->netdev); netif_tx_stop_all_queues(nic->netdev);
nic->link_up = false;
/* Teardown secondary qsets first */ /* Teardown secondary qsets first */
if (!nic->sqs_mode) { if (!nic->sqs_mode) {
@ -1211,9 +1212,6 @@ int nicvf_open(struct net_device *netdev)
nic->drv_stats.txq_stop = 0; nic->drv_stats.txq_stop = 0;
nic->drv_stats.txq_wake = 0; nic->drv_stats.txq_wake = 0;
netif_carrier_on(netdev);
netif_tx_start_all_queues(netdev);
return 0; return 0;
cleanup: cleanup:
nicvf_disable_intr(nic, NICVF_INTR_MBOX, 0); nicvf_disable_intr(nic, NICVF_INTR_MBOX, 0);

2
drivers/net/ethernet/cavium/thunder/thunder_bgx.c
View File

@ -612,6 +612,8 @@ static void bgx_poll_for_link(struct work_struct *work)
lmac->last_duplex = 1; lmac->last_duplex = 1;
} else { } else {
lmac->link_up = 0; lmac->link_up = 0;
lmac->last_speed = SPEED_UNKNOWN;
lmac->last_duplex = DUPLEX_UNKNOWN;
} }
if (lmac->last_link != lmac->link_up) { if (lmac->last_link != lmac->link_up) {