[PATCH net-next] 3c59x: Add software timestamping
From: Matthew Whitehead <hidden>
Date: 2013-12-16 15:27:46
Subsystem:
3c59x network driver, networking drivers, the rest · Maintainers:
Steffen Klassert, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
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 <redacted> --- drivers/net/ethernet/3com/3c59x.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/drivers/net/ethernet/3com/3c59x.c b/drivers/net/ethernet/3com/3c59x.c
index ad5272b..10ad402 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
--
1.7.1