diff options
| author | Ben Hutchings <bhutchings@solarflare.com> | 2013-12-06 22:10:46 +0000 |
|---|---|---|
| committer | Ben Hutchings <bhutchings@solarflare.com> | 2013-12-06 22:22:34 +0000 |
| commit | 35f9a7a380728a94d417e5824a866f969423ac83 (patch) | |
| tree | 5076c6937b05d033a824dbb0b9e3d6362b22e6c0 /drivers/net/ethernet/sfc/ptp.c | |
| parent | f32116003c39f3a6815215a7512e1ea8d1e4bbc7 (diff) | |
| download | lwn-35f9a7a380728a94d417e5824a866f969423ac83.tar.gz lwn-35f9a7a380728a94d417e5824a866f969423ac83.zip | |
sfc: Rate-limit log message for PTP packets without a matching timestamp event
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>
Diffstat (limited to 'drivers/net/ethernet/sfc/ptp.c')
| -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 */ |