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sfc: Stop/re-start PTP when stopping/starting the datapath.

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This disables PTP when we bring the interface down to avoid getting
unmatched RX timestamp events, and tries to re-enable it when bringing
the interface up.

[bwh: Make efx_ptp_stop() safe on Falcon. Introduce
 efx_ptp_{start,stop}_datapath() functions; we'll expand them later.]

Fixes: 7c236c43b8 ('sfc: Add support for IEEE-1588 PTP')
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
This commit is contained in:
Alexandre Rames
2013-11-08 10:20:31 +00:00
committed by Ben Hutchings
parent 35f9a7a380
commit 2ea4dc28a5
3 changed files with 33 additions and 3 deletions
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2
drivers/net/ethernet/sfc/nic.h
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@@ -560,6 +560,8 @@ void efx_ptp_get_ts_info(struct efx_nic *efx, struct ethtool_ts_info *ts_info);
bool efx_ptp_is_ptp_tx(struct efx_nic *efx, struct sk_buff *skb);
int efx_ptp_tx(struct efx_nic *efx, struct sk_buff *skb);
void efx_ptp_event(struct efx_nic *efx, efx_qword_t *ev);
void efx_ptp_start_datapath(struct efx_nic *efx);
void efx_ptp_stop_datapath(struct efx_nic *efx);
extern const struct efx_nic_type falcon_a1_nic_type;
extern const struct efx_nic_type falcon_b0_nic_type;