diff options
| author | Stuart Hodgson <smhodgson@solarflare.com> | 2012-09-03 11:09:36 +0100 |
|---|---|---|
| committer | Ben Hutchings <bhutchings@solarflare.com> | 2012-09-19 02:54:12 +0100 |
| commit | 7c236c43b838221e17220bcb39e8e8d8c7123713 (patch) | |
| tree | 4ef6fa19edafeddf8280c5086624ae430125be91 /drivers/net/ethernet/sfc/tx.c | |
| parent | 576eda8b08e00cbb0cf29ba777c2cb461c98cbbc (diff) | |
sfc: Add support for IEEE-1588 PTP
Add PTP IEEE-1588 support and make accesible via the PHC subsystem.
This work is based on prior code by Andrew Jackson
Signed-off-by: Stuart Hodgson <smhodgson@solarflare.com>
[bwh:
- Add byte order conversion in efx_ptp_send_times()
- Simplify conversion of PPS event times
- Add the built-in vs module check to CONFIG_SFC_PTP dependencies]
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Diffstat (limited to 'drivers/net/ethernet/sfc/tx.c')
| -rw-r--r-- | drivers/net/ethernet/sfc/tx.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/net/ethernet/sfc/tx.c b/drivers/net/ethernet/sfc/tx.c index ebca75ed78d..5e090e54298 100644 --- a/drivers/net/ethernet/sfc/tx.c +++ b/drivers/net/ethernet/sfc/tx.c @@ -339,6 +339,12 @@ netdev_tx_t efx_hard_start_xmit(struct sk_buff *skb, EFX_WARN_ON_PARANOID(!netif_device_present(net_dev)); + /* PTP "event" packet */ + if (unlikely(efx_xmit_with_hwtstamp(skb)) && + unlikely(efx_ptp_is_ptp_tx(efx, skb))) { + return efx_ptp_tx(efx, skb); + } + index = skb_get_queue_mapping(skb); type = skb->ip_summed == CHECKSUM_PARTIAL ? EFX_TXQ_TYPE_OFFLOAD : 0; if (index >= efx->n_tx_channels) { |