diff options
Diffstat (limited to 'drivers/net/ethernet/sfc/ptp.c')
| -rw-r--r-- | drivers/net/ethernet/sfc/ptp.c | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/drivers/net/ethernet/sfc/ptp.c b/drivers/net/ethernet/sfc/ptp.c index 0d0160f15c35..87a72f37141b 100644 --- a/drivers/net/ethernet/sfc/ptp.c +++ b/drivers/net/ethernet/sfc/ptp.c @@ -341,6 +341,14 @@ bool efx_ptp_use_mac_tx_timestamps(struct efx_nic *efx) )); } +/* PTP 'extra' channel is still a traffic channel, but we only create TX queues + * if PTP uses MAC TX timestamps, not if PTP uses the MC directly to transmit. + */ +bool efx_ptp_want_txqs(struct efx_channel *channel) +{ + return efx_ptp_use_mac_tx_timestamps(channel->efx); +} + #define PTP_SW_STAT(ext_name, field_name) \ { #ext_name, 0, offsetof(struct efx_ptp_data, field_name) } #define PTP_MC_STAT(ext_name, mcdi_name) \ @@ -1321,10 +1329,13 @@ int efx_ptp_probe(struct efx_nic *efx, struct efx_channel *channel) goto fail2; } - if (efx_ptp_use_mac_tx_timestamps(efx)) + if (efx_ptp_use_mac_tx_timestamps(efx)) { ptp->xmit_skb = efx_ptp_xmit_skb_queue; - else - ptp->xmit_skb = efx_ptp_xmit_skb_mc; + /* Request sync events on this channel. */ + channel->sync_events_state = SYNC_EVENTS_QUIESCENT; + } else { + ptp->xmit_skb = efx_ptp_xmit_skb_mc; + } INIT_WORK(&ptp->work, efx_ptp_worker); ptp->config.flags = 0; @@ -2009,13 +2020,14 @@ static int efx_phc_enable(struct ptp_clock_info *ptp, return 0; } -static const struct efx_channel_type efx_ptp_channel_type = { +const struct efx_channel_type efx_ptp_channel_type = { .handle_no_channel = efx_ptp_handle_no_channel, .pre_probe = efx_ptp_probe_channel, .post_remove = efx_ptp_remove_channel, .get_name = efx_ptp_get_channel_name, /* no copy operation; there is no need to reallocate this channel */ .receive_skb = efx_ptp_rx, + .want_txqs = efx_ptp_want_txqs, .keep_eventq = false, }; |