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authorGovindarajulu Varadarajan <gvaradar@cisco.com>2017-12-01 10:21:40 -0800
committerDavid S. Miller <davem@davemloft.net>2017-12-03 10:15:34 -0500
commitfb7516d42478ebc8e2f00efb76ef96f7b68fd8d3 (patch)
tree76c6e5ce40ea90bfc1b447a08edda14295cc7f6b /drivers/net/ethernet/cisco/enic
parentb8278f2c12b29b97c17cebf6b49b0f59337f1f03 (diff)
downloadlinux-fb7516d42478ebc8e2f00efb76ef96f7b68fd8d3.tar.gz
enic: add sw timestamp support
Add ethtool ops to advertise sw timestamping. Call skb_tx_timestamp() just before ringing the wq doorbell. Signed-off-by: Govindarajulu Varadarajan <gvaradar@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/cisco/enic')
-rw-r--r--drivers/net/ethernet/cisco/enic/enic_ethtool.c12
-rw-r--r--drivers/net/ethernet/cisco/enic/enic_main.c1
2 files changed, 13 insertions, 0 deletions
diff --git a/drivers/net/ethernet/cisco/enic/enic_ethtool.c b/drivers/net/ethernet/cisco/enic/enic_ethtool.c
index 462d0ce51240..efb9333c7cf8 100644
--- a/drivers/net/ethernet/cisco/enic/enic_ethtool.c
+++ b/drivers/net/ethernet/cisco/enic/enic_ethtool.c
@@ -18,6 +18,7 @@
#include <linux/netdevice.h>
#include <linux/ethtool.h>
+#include <linux/net_tstamp.h>
#include "enic_res.h"
#include "enic.h"
@@ -578,6 +579,16 @@ static int enic_set_rxfh(struct net_device *netdev, const u32 *indir,
return __enic_set_rsskey(enic);
}
+static int enic_get_ts_info(struct net_device *netdev,
+ struct ethtool_ts_info *info)
+{
+ info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE |
+ SOF_TIMESTAMPING_RX_SOFTWARE |
+ SOF_TIMESTAMPING_SOFTWARE;
+
+ return 0;
+}
+
static const struct ethtool_ops enic_ethtool_ops = {
.get_drvinfo = enic_get_drvinfo,
.get_msglevel = enic_get_msglevel,
@@ -597,6 +608,7 @@ static const struct ethtool_ops enic_ethtool_ops = {
.get_rxfh = enic_get_rxfh,
.set_rxfh = enic_set_rxfh,
.get_link_ksettings = enic_get_ksettings,
+ .get_ts_info = enic_get_ts_info,
};
void enic_set_ethtool_ops(struct net_device *netdev)
diff --git a/drivers/net/ethernet/cisco/enic/enic_main.c b/drivers/net/ethernet/cisco/enic/enic_main.c
index e130fb757e7b..d98676e43e03 100644
--- a/drivers/net/ethernet/cisco/enic/enic_main.c
+++ b/drivers/net/ethernet/cisco/enic/enic_main.c
@@ -856,6 +856,7 @@ static netdev_tx_t enic_hard_start_xmit(struct sk_buff *skb,
if (vnic_wq_desc_avail(wq) < MAX_SKB_FRAGS + ENIC_DESC_MAX_SPLITS)
netif_tx_stop_queue(txq);
+ skb_tx_timestamp(skb);
if (!skb->xmit_more || netif_xmit_stopped(txq))
vnic_wq_doorbell(wq);