diff options
| author | Ben Hutchings <bhutchings@solarflare.com> | 2013-12-06 22:10:46 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-01-15 15:31:39 -0800 |
| commit | 128b47699811a959de54740c8264296c7138cc98 (patch) | |
| tree | e84dd593a38561bfd18f676017fd531725e0e9cc | |
| parent | 29c195da19690acbf2c1631bad23a52d72075e83 (diff) | |
sfc: Rate-limit log message for PTP packets without a matching timestamp event
[ Upstream commit 35f9a7a380728a94d417e5824a866f969423ac83 ]
In case of a flood of PTP packets, the timestamp peripheral and MC
firmware on the SFN[56]322F boards may not be able to provide
timestamp events for all packets. Don't complain too much about this.
Fixes: 7c236c43b838 ('sfc: Add support for IEEE-1588 PTP')
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/net/ethernet/sfc/ptp.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/net/ethernet/sfc/ptp.c b/drivers/net/ethernet/sfc/ptp.c index 8b2cf783217c..8c665f1b5480 100644 --- a/drivers/net/ethernet/sfc/ptp.c +++ b/drivers/net/ethernet/sfc/ptp.c @@ -717,8 +717,9 @@ static bool efx_ptp_process_events(struct efx_nic *efx, struct sk_buff_head *q) __skb_queue_tail(q, skb); } else if (time_after(jiffies, match->expiry)) { match->state = PTP_PACKET_STATE_TIMED_OUT; - netif_warn(efx, rx_err, efx->net_dev, - "PTP packet - no timestamp seen\n"); + if (net_ratelimit()) + netif_warn(efx, rx_err, efx->net_dev, + "PTP packet - no timestamp seen\n"); __skb_queue_tail(q, skb); } else { /* Replace unprocessed entry and stop */ |