github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-11-07 06:17:02 +01:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

net: macb: Enable RX timestamping for specific PTPv1 filters

Browse Source 
Selecting a PTPv1 Sync or Delay_Req filter in gem_set_hwtst() returns
success, but leaves rx_bd_control at its initial value of
TSTAMP_DISABLED. The requested filter therefore appears to have been
applied, even though received packets have no hardware timestamps.

The PTPv1 event case already enables timestamping for all frames, so
use that path for Sync and Delay_Req as well. This enables timestamping
for both requests and returns HWTSTAMP_FILTER_ALL to tell the caller
which filter was actually applied.

Reviewed-by: Nicolai Buchwitz <nb@tipi-net.de>
Reviewed-by: Théo Lebrun <theo.lebrun@bootlin.com>
Tested-by: Nicolai Buchwitz <nb@tipi-net.de>
Signed-off-by: Kim Wooseok <5mghybrid@khu.ac.kr>
Link: https://patch.msgid.link/20260923-macb-hwtstamp-rework-v2-2-75c909b2676d@khu.ac.kr
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Kim Wooseok 2026-09-23 18:13:26 +09:00 committed by Jakub Kicinski
parent 381cb968fa
commit 059a5a238c
1 changed files with 2 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/net/ethernet/cadence/macb_ptp.c
View File

@ -421,10 +421,6 @@ int gem_set_hwtst(struct net_device *netdev,
switch (rx_filter) {
case HWTSTAMP_FILTER_NONE:
break;
case HWTSTAMP_FILTER_PTP_V1_L4_SYNC:
break;
case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ:
break;
case HWTSTAMP_FILTER_PTP_V2_EVENT:
case HWTSTAMP_FILTER_PTP_V2_L2_EVENT:
case HWTSTAMP_FILTER_PTP_V2_L4_EVENT:
@ -439,6 +435,8 @@ int gem_set_hwtst(struct net_device *netdev,
ncr_mask |= MACB_BIT(SRTSM);
ncr_bits |= MACB_BIT(SRTSM);
break;
case HWTSTAMP_FILTER_PTP_V1_L4_SYNC:
case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ:
case HWTSTAMP_FILTER_PTP_V1_L4_EVENT:
case HWTSTAMP_FILTER_ALL:
rx_bd_control = TSTAMP_ALL_FRAMES;