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| author | Vinicius Costa Gomes <vinicius.gomes@intel.com> | 2019-12-02 15:19:50 -0800 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2020-01-06 14:19:31 -0800 |
| commit | 81b055205e8ba2d400c8fa5845ba540a4a880a3a (patch) | |
| tree | 95cb91733480eb08c7375ca830c272ed77a40e40 /drivers/net/ethernet/intel/igc/igc.h | |
| parent | 5f2958052c5820d0795616fcc299097390cf92a8 (diff) | |
| download | kernel_replicant_linux-81b055205e8ba2d400c8fa5845ba540a4a880a3a.tar.gz kernel_replicant_linux-81b055205e8ba2d400c8fa5845ba540a4a880a3a.tar.bz2 kernel_replicant_linux-81b055205e8ba2d400c8fa5845ba540a4a880a3a.zip | |
igc: Add support for RX timestamping
This adds support for timestamping received packets.
It is based on the i210, as many features of i225 work the same way.
The main difference from i210 is that i225 has support for choosing
the timer register to use when timestamping packets. Right now, we
only support using timer 0. The other difference is that i225 stores
two timestamps in the receive descriptor, right now, we only retrieve
one.
Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/igc/igc.h')
| -rw-r--r-- | drivers/net/ethernet/intel/igc/igc.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/igc/igc.h b/drivers/net/ethernet/intel/igc/igc.h index 7586f237747a..9b0d1cbf941f 100644 --- a/drivers/net/ethernet/intel/igc/igc.h +++ b/drivers/net/ethernet/intel/igc/igc.h @@ -107,6 +107,20 @@ extern char igc_driver_version[]; #define AUTO_ALL_MODES 0 #define IGC_RX_HDR_LEN IGC_RXBUFFER_256 +/* Transmit and receive latency (for PTP timestamps) */ +/* FIXME: These values were estimated using the ones that i210 has as + * basis, they seem to provide good numbers with ptp4l/phc2sys, but we + * need to confirm them. + */ +#define IGC_I225_TX_LATENCY_10 9542 +#define IGC_I225_TX_LATENCY_100 1024 +#define IGC_I225_TX_LATENCY_1000 178 +#define IGC_I225_TX_LATENCY_2500 64 +#define IGC_I225_RX_LATENCY_10 20662 +#define IGC_I225_RX_LATENCY_100 2213 +#define IGC_I225_RX_LATENCY_1000 448 +#define IGC_I225_RX_LATENCY_2500 160 + /* RX and TX descriptor control thresholds. * PTHRESH - MAC will consider prefetch if it has fewer than this number of * descriptors available in its onboard memory. @@ -539,6 +553,9 @@ int igc_erase_filter(struct igc_adapter *adapter, void igc_ptp_init(struct igc_adapter *adapter); void igc_ptp_reset(struct igc_adapter *adapter); void igc_ptp_stop(struct igc_adapter *adapter); +void igc_ptp_rx_rgtstamp(struct igc_q_vector *q_vector, struct sk_buff *skb); +void igc_ptp_rx_pktstamp(struct igc_q_vector *q_vector, void *va, + struct sk_buff *skb); int igc_ptp_set_ts_config(struct net_device *netdev, struct ifreq *ifr); int igc_ptp_get_ts_config(struct net_device *netdev, struct ifreq *ifr); #define igc_rx_pg_size(_ring) (PAGE_SIZE << igc_rx_pg_order(_ring)) |