diff options
| author |   Vinicius Costa Gomes <vinicius.gomes@intel.com> | 2023-06-07 14:32:30 -0700 |
|---|---|---|
| committer |   Tony Nguyen <anthony.l.nguyen@intel.com> | 2023-06-22 08:22:35 -0700 |
| commit | ce58c7cc8b9910f2bc1d038d7ba60c3f011b2cb2 (patch) | |
| tree | 5a0b6e861d899068d33ac23435160f0e28e5c662 /drivers/net/ethernet/intel/igc/igc.h | |
| parent | igc: Fix race condition in PTP tx code (diff) | |
| download | wireguard-linux-ce58c7cc8b9910f2bc1d038d7ba60c3f011b2cb2.tar.xz wireguard-linux-ce58c7cc8b9910f2bc1d038d7ba60c3f011b2cb2.zip | |
igc: Check if hardware TX timestamping is enabled earlier
Before requesting a packet transmission to be hardware timestamped,
check if the user has TX timestamping enabled. Fixes an issue that if
a packet was internally forwarded to the NIC, and it had the
SKBTX_HW_TSTAMP flag set, the driver would mark that timestamp as
skipped.
In reality, that timestamp was "not for us", as TX timestamp could
never be enabled in the NIC.
Checking if the TX timestamping is enabled earlier has a secondary
effect that when TX timestamping is disabled, there's no need to check
for timestamp timeouts.
We should only take care to free any pending timestamp when TX
timestamping is disabled, as that skb would never be released
otherwise.
Fixes: 2c344ae24501 ("igc: Add support for TX timestamping")
Suggested-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Tested-by: Naama Meir <naamax.meir@linux.intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/igc/igc.h')
| -rw-r--r-- | drivers/net/ethernet/intel/igc/igc.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/igc/igc.h b/drivers/net/ethernet/intel/igc/igc.h index 7da0657ea48f..66fb67c17e4f 100644 --- a/drivers/net/ethernet/intel/igc/igc.h +++ b/drivers/net/ethernet/intel/igc/igc.h @@ -581,6 +581,7 @@ enum igc_ring_flags_t { IGC_RING_FLAG_TX_CTX_IDX, IGC_RING_FLAG_TX_DETECT_HANG, IGC_RING_FLAG_AF_XDP_ZC, + IGC_RING_FLAG_TX_HWTSTAMP, }; #define ring_uses_large_buffer(ring) \ |