From 2a2529ef2bb477dbf11311710c6de46298192316 Mon Sep 17 00:00:00 2001 From: Matthew Whitehead Date: Mon, 16 Dec 2013 10:20:26 -0500 Subject: [PATCH] 3c59x: Add software timestamping Added software timestamping ability. Tested with linuxptp and synchronized clocks to an average of less than 200 microseconds on 10 megabit ethernet. Tested on both Vortex and Boomerang models. Signed-off-by: Matthew Whitehead Signed-off-by: David S. Miller --- drivers/net/ethernet/3com/3c59x.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/net/ethernet/3com/3c59x.c b/drivers/net/ethernet/3com/3c59x.c index af24c3cf8215..0f4241c6e97e 100644 --- a/drivers/net/ethernet/3com/3c59x.c +++ b/drivers/net/ethernet/3com/3c59x.c @@ -2079,10 +2079,12 @@ vortex_start_xmit(struct sk_buff *skb, struct net_device *dev) iowrite16(len, ioaddr + Wn7_MasterLen); spin_unlock_irq(&vp->window_lock); vp->tx_skb = skb; + skb_tx_timestamp(skb); iowrite16(StartDMADown, ioaddr + EL3_CMD); /* netif_wake_queue() will be called at the DMADone interrupt. */ } else { /* ... and the packet rounded to a doubleword. */ + skb_tx_timestamp(skb); iowrite32_rep(ioaddr + TX_FIFO, skb->data, (skb->len + 3) >> 2); dev_kfree_skb (skb); if (ioread16(ioaddr + TxFree) > 1536) { @@ -2212,6 +2214,7 @@ boomerang_start_xmit(struct sk_buff *skb, struct net_device *dev) prev_entry->status &= cpu_to_le32(~TxIntrUploaded); #endif } + skb_tx_timestamp(skb); iowrite16(DownUnstall, ioaddr + EL3_CMD); spin_unlock_irqrestore(&vp->lock, flags); return NETDEV_TX_OK; @@ -2986,6 +2989,7 @@ static const struct ethtool_ops vortex_ethtool_ops = { .nway_reset = vortex_nway_reset, .get_wol = vortex_get_wol, .set_wol = vortex_set_wol, + .get_ts_info = ethtool_op_get_ts_info, }; #ifdef CONFIG_PCI -- GitLab