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ice: add tracking of good transmit timestamps

Browse Source 
As a pre-requisite to implementing timestamp statistics, start tracking
successful PTP timestamps. There already existed a trace event, but
add a counter as well so it can be displayed by the next patch.

Good count is a u64 as it is much more likely to be incremented. The
existing error stats are all u32 as before, and are less likely so will
wrap less.

Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Rinitha S <sx.rinitha@intel.com>
Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://patch.msgid.link/20251016-jk-iwl-next-2025-10-15-v2-10-ff3a390d9fc6@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Jesse Brandeburg 2025-10-16 23:08:39 -07:00 committed by Jakub Kicinski
parent 20ae87514a
commit 4368d5fe02
2 changed files with 11 additions and 0 deletions
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9
drivers/net/ethernet/intel/ice/ice_ptp.c
View File

@ -500,6 +500,9 @@ void ice_ptp_complete_tx_single_tstamp(struct ice_ptp_tx *tx)
if (tstamp) {
shhwtstamps.hwtstamp = ns_to_ktime(tstamp);
ice_trace(tx_tstamp_complete, skb, idx);
/* Count the number of Tx timestamps that succeeded */
pf->ptp.tx_hwtstamp_good++;
}
skb_tstamp_tx(skb, &shhwtstamps);
@ -558,6 +561,7 @@ static void ice_ptp_process_tx_tstamp(struct ice_ptp_tx *tx)
{
struct ice_ptp_port *ptp_port;
unsigned long flags;
u32 tstamp_good = 0;
struct ice_pf *pf;
struct ice_hw *hw;
u64 tstamp_ready;
@ -658,11 +662,16 @@ static void ice_ptp_process_tx_tstamp(struct ice_ptp_tx *tx)
if (tstamp) {
shhwtstamps.hwtstamp = ns_to_ktime(tstamp);
ice_trace(tx_tstamp_complete, skb, idx);
/* Count the number of Tx timestamps that succeeded */
tstamp_good++;
}
skb_tstamp_tx(skb, &shhwtstamps);
dev_kfree_skb_any(skb);
}
pf->ptp.tx_hwtstamp_good += tstamp_good;
}
/**

2
drivers/net/ethernet/intel/ice/ice_ptp.h
View File

@ -237,6 +237,7 @@ struct ice_ptp_pin_desc {
* @clock: pointer to registered PTP clock device
* @tstamp_config: hardware timestamping configuration
* @reset_time: kernel time after clock stop on reset
* @tx_hwtstamp_good: number of completed Tx timestamp requests
* @tx_hwtstamp_skipped: number of Tx time stamp requests skipped
* @tx_hwtstamp_timeouts: number of Tx skbs discarded with no time stamp
* @tx_hwtstamp_flushed: number of Tx skbs flushed due to interface closed
@ -261,6 +262,7 @@ struct ice_ptp {
struct ptp_clock *clock;
struct kernel_hwtstamp_config tstamp_config;
u64 reset_time;
u64 tx_hwtstamp_good;
u32 tx_hwtstamp_skipped;
u32 tx_hwtstamp_timeouts;
u32 tx_hwtstamp_flushed;