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| author |   Manfred Rudigier <Manfred.Rudigier@omicron.at> | 2010-04-08 23:10:35 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2010-04-13 01:41:31 -0700 |
| commit | f0ee7acfcdd4169cee2fefc630de72deb5bc34b9 (patch) | |
| tree | 161b16941b8c11023a9fb24324f22463dd16f163 /drivers/net/gianfar.h | |
| parent | gianfar: Add hardware RX timestamping support (diff) | |
| download | linux-dev-f0ee7acfcdd4169cee2fefc630de72deb5bc34b9.tar.xz linux-dev-f0ee7acfcdd4169cee2fefc630de72deb5bc34b9.zip | |
gianfar: Add hardware TX timestamping support
If a packet has the skb_shared_tx->hardware flag set the device is
instructed to generate a TX timestamp and write it back to memory after
the frame is transmitted. During the clean_tx_ring operation the
timestamp will be extracted and copied into the skb_shared_hwtstamps
struct of the skb.
TX timestamping is enabled by setting the tx_type to something else
than HWTSTAMP_TX_OFF with the SIOCSHWTSTAMP ioctl command. It is only
supported by eTSEC devices.
Signed-off-by: Manfred Rudigier <manfred.rudigier@omicron.at>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/gianfar.h')
| -rw-r--r-- | drivers/net/gianfar.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/net/gianfar.h b/drivers/net/gianfar.h index 1ea287cba231..ac4a92e08c09 100644 --- a/drivers/net/gianfar.h +++ b/drivers/net/gianfar.h @@ -540,7 +540,7 @@ struct txbd8 struct txfcb { u8 flags; - u8 reserved; + u8 ptp; /* Flag to enable tx timestamping */ u8 l4os; /* Level 4 Header Offset */ u8 l3os; /* Level 3 Header Offset */ u16 phcs; /* Pseudo-header Checksum */ @@ -1105,6 +1105,7 @@ struct gfar_private { /* HW time stamping enabled flag */ int hwts_rx_en; + int hwts_tx_en; }; extern unsigned int ftp_rqfpr[MAX_FILER_IDX + 1]; |