eth: fbnic: add software TX timestamping support

Add software TX timestamping support. RX software timestamping is
implemented in the core and there is no need to provide special flag
in the driver anymore.

Signed-off-by: Vadim Fedorenko <vadfed@meta.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

diff --git a/drivers/net/ethernet/meta/fbnic/fbnic_ethtool.c b/drivers/net/ethernet/meta/fbnic/fbnic_ethtool.c
index 5d980e17894141e38c081a0445f5d175e932e5e9..ffc773014e0fdca764a575b9af650941f76a75c6 100644 (file)
--- a/drivers/net/ethernet/meta/fbnic/fbnic_ethtool.c
+++ b/drivers/net/ethernet/meta/fbnic/fbnic_ethtool.c
@@ -6,6 +6,16 @@
 #include "fbnic_netdev.h"
 #include "fbnic_tlv.h"
 
+static int
+fbnic_get_ts_info(struct net_device *netdev,
+                 struct kernel_ethtool_ts_info *tsinfo)
+{
+       tsinfo->so_timestamping =
+               SOF_TIMESTAMPING_TX_SOFTWARE;
+
+       return 0;
+}
+
 static void
 fbnic_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo)
 {
@@ -66,6 +76,7 @@ fbnic_get_eth_mac_stats(struct net_device *netdev,
 
 static const struct ethtool_ops fbnic_ethtool_ops = {
        .get_drvinfo            = fbnic_get_drvinfo,
+       .get_ts_info            = fbnic_get_ts_info,
        .get_eth_mac_stats      = fbnic_get_eth_mac_stats,
 };
 

diff --git a/drivers/net/ethernet/meta/fbnic/fbnic_txrx.c b/drivers/net/ethernet/meta/fbnic/fbnic_txrx.c
index 6a6d7e22f1a722314d6eee593933e170b7c3fb1b..8337d49bad0bb2453ef17b0e3f66dfab0947da96 100644 (file)
--- a/drivers/net/ethernet/meta/fbnic/fbnic_txrx.c
+++ b/drivers/net/ethernet/meta/fbnic/fbnic_txrx.c
@@ -205,6 +205,9 @@ fbnic_tx_map(struct fbnic_ring *ring, struct sk_buff *skb, __le64 *meta)
 
        ring->tail = tail;
 
+       /* Record SW timestamp */
+       skb_tx_timestamp(skb);
+
        /* Verify there is room for another packet */
        fbnic_maybe_stop_tx(skb->dev, ring, FBNIC_MAX_SKB_DESC);