diff options
| author |   Martin Habets <mhabets@solarflare.com> | 2018-01-25 17:24:43 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2018-01-25 16:05:13 -0500 |
| commit | b9b603d46d5aad1fb66fa007759193e82a50c680 (patch) | |
| tree | d9d0a733ccd7ec6d78262c2ba5cbfce6023ed5cb /drivers/net/ethernet/sfc/nic.h | |
| parent | sfc: remove tx and MCDI handling from NAPI budget consideration (diff) | |
| download | linux-dev-b9b603d46d5aad1fb66fa007759193e82a50c680.tar.xz linux-dev-b9b603d46d5aad1fb66fa007759193e82a50c680.zip | |
sfc: handle TX timestamps in the normal data path
Before this work, TX timestamping is done by sending each SKB to the MC.
On the 8000 series (Medford1) we have high speed timestamping via the
MAC, which means we can use normal TX queues for this without a
significant drop in bandwidth. On the X2000 series (Medford2) support
for transmitting via the MC is removed, so the new way must be used.
This patch enables timestamping on a TX queue, if requested.
It also enhances TX event handling to process the extra completion events,
and puts the time in the SKB.
Signed-off-by: Martin Habets <mhabets@solarflare.com>
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/sfc/nic.h')
| -rw-r--r-- | drivers/net/ethernet/sfc/nic.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/ethernet/sfc/nic.h b/drivers/net/ethernet/sfc/nic.h index 763052214525..54bfbba5ffe6 100644 --- a/drivers/net/ethernet/sfc/nic.h +++ b/drivers/net/ethernet/sfc/nic.h @@ -471,6 +471,7 @@ static inline void efx_rx_skb_attach_timestamp(struct efx_channel *channel, } void efx_ptp_start_datapath(struct efx_nic *efx); void efx_ptp_stop_datapath(struct efx_nic *efx); +ktime_t efx_ptp_nic_to_kernel_time(struct efx_tx_queue *tx_queue); extern const struct efx_nic_type falcon_a1_nic_type; extern const struct efx_nic_type falcon_b0_nic_type; |