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: 7c236c43b8
('sfc: Add support for IEEE-1588 PTP')
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
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@ -717,8 +717,9 @@ static bool efx_ptp_process_events(struct efx_nic *efx, struct sk_buff_head *q)
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__skb_queue_tail(q, skb);
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} else if (time_after(jiffies, match->expiry)) {
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match->state = PTP_PACKET_STATE_TIMED_OUT;
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netif_warn(efx, rx_err, efx->net_dev,
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"PTP packet - no timestamp seen\n");
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if (net_ratelimit())
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netif_warn(efx, rx_err, efx->net_dev,
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"PTP packet - no timestamp seen\n");
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__skb_queue_tail(q, skb);
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} else {
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/* Replace unprocessed entry and stop */
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