| Message ID | 20191202231953.2203397-6-vinicius.gomes@intel.com |
|---|---|
| State | Accepted |
| Delegated to: | Jeff Kirsher |
| Headers | show |
| Series | igc: Add basic support for Timestamping/PTP | expand |
> From: Intel-wired-lan <intel-wired-lan-bounces@osuosl.org> On Behalf Of > Vinicius Costa Gomes > Sent: Monday, December 2, 2019 3:20 PM > To: intel-wired-lan@lists.osuosl.org > Subject: [Intel-wired-lan] [next-queue PATCH v3 5/5] igc: Use Start of Packet > signal from PHY for timestamping > > For better accuracy, i225 is able to do timestamping using the Start of > Packet signal from the PHY. > > Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@intel.com> > --- > drivers/net/ethernet/intel/igc/igc_defines.h | 2 ++ > drivers/net/ethernet/intel/igc/igc_ptp.c | 5 ++++- > 2 files changed, 6 insertions(+), 1 deletion(-) > Tested-by: Aaron Brown <aaron.f.brown@intel.com>
diff --git a/drivers/net/ethernet/intel/igc/igc_defines.h b/drivers/net/ethernet/intel/igc/igc_defines.h index 2ecaeddc6d3d..ed037ef01533 100644 --- a/drivers/net/ethernet/intel/igc/igc_defines.h +++ b/drivers/net/ethernet/intel/igc/igc_defines.h @@ -395,6 +395,7 @@ #define IGC_TSYNCRXCTL_TYPE_EVENT_V2 0x0A #define IGC_TSYNCRXCTL_ENABLED 0x00000010 /* enable Rx timestamping */ #define IGC_TSYNCRXCTL_SYSCFI 0x00000020 /* Sys clock frequency */ +#define IGC_TSYNCRXCTL_RXSYNSIG 0x00000400 /* Sample RX tstamp in PHY sop */ /* Time Sync Receive Configuration */ #define IGC_TSYNCRXCFG_PTP_V1_CTRLT_MASK 0x000000FF @@ -418,6 +419,7 @@ #define IGC_TSYNCTXCTL_SYNC_COMP_ERR 0x20000000 /* sync err */ #define IGC_TSYNCTXCTL_SYNC_COMP 0x40000000 /* sync complete */ #define IGC_TSYNCTXCTL_START_SYNC 0x80000000 /* initiate sync */ +#define IGC_TSYNCTXCTL_TXSYNSIG 0x00000020 /* Sample TX tstamp in PHY sop */ /* Receive Checksum Control */ #define IGC_RXCSUM_CRCOFL 0x00000800 /* CRC32 offload enable */ diff --git a/drivers/net/ethernet/intel/igc/igc_ptp.c b/drivers/net/ethernet/intel/igc/igc_ptp.c index b63a03157ec1..86ca93cb2fc5 100644 --- a/drivers/net/ethernet/intel/igc/igc_ptp.c +++ b/drivers/net/ethernet/intel/igc/igc_ptp.c @@ -368,6 +368,7 @@ static int igc_ptp_set_timestamp_mode(struct igc_adapter *adapter, if (tsync_rx_ctl) { tsync_rx_ctl = IGC_TSYNCRXCTL_ENABLED; tsync_rx_ctl |= IGC_TSYNCRXCTL_TYPE_ALL; + tsync_rx_ctl |= IGC_TSYNCRXCTL_RXSYNSIG; config->rx_filter = HWTSTAMP_FILTER_ALL; is_l2 = true; is_l4 = true; @@ -384,8 +385,10 @@ static int igc_ptp_set_timestamp_mode(struct igc_adapter *adapter, } } - if (tsync_tx_ctl) + if (tsync_tx_ctl) { tsync_tx_ctl = IGC_TSYNCTXCTL_ENABLED; + tsync_tx_ctl |= IGC_TSYNCTXCTL_TXSYNSIG; + } /* enable/disable TX */ regval = rd32(IGC_TSYNCTXCTL);
For better accuracy, i225 is able to do timestamping using the Start of Packet signal from the PHY. Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@intel.com> --- drivers/net/ethernet/intel/igc/igc_defines.h | 2 ++ drivers/net/ethernet/intel/igc/igc_ptp.c | 5 ++++- 2 files changed, 6 insertions(+), 1 deletion(-)