[PATCH net-next v5 0/9] net: dsa: microchip: Add PTP support for the KSZ8463

[Bastien Curutchet (Schneider Electric)]

Hi all,

This series aims to add two-step PTP support for the KSZ8463 driver

I've encountered weird behavior with IPv4 and IPv6 layers -- maybe that's
related to the incompatibility with the Linux stack mentionned by commit
620e2392db235 ("net: dsa: microchip: Disable PTP function of KSZ8463") ? --
So the support is only added for the L2 layer.

Patches 1 to 4 add IRQ support for the KSZ8463
Patch 5 and 6 add specific dsa_device_ops for the KSZ8463
Patches 7 to 9 add PTP support for the KSZ8463

Signed-off-by: Bastien Curutchet (Schneider Electric) <bastien.curutchet@xxxxxxxxxxx>
---
Changes in v5:
- Rebase on v7.0-rc1
- PATCH 1: Add Maxime's Reviewed-By
- Add PATCH 5 and modify PATCH 6 to share more code with already existing
  tag operations. Also address Jakub comment about alphabetical order
- PATCH 7: Add details in commit log
- PATCH 9: Set the pdelayresp_flag in the xmit worker to avoid race
  conditions
- Link to v4: https://lore.kernel.org/r/20260127-ksz8463-ptp-v4-0-652e021aae86@xxxxxxxxxxx

Changes in v4:
- PATCH 4: Fix the unused variable warning reported by the bot
- Link to v3: https://lore.kernel.org/r/20260126-ksz8463-ptp-v3-0-9f092aeb8492@xxxxxxxxxxx

Changes in v3:
- PATCH 4: Fix the unitialized value reported by clang
- Link to v2: https://lore.kernel.org/r/20260122-ksz8463-ptp-v2-0-b6683f5ce50b@xxxxxxxxxxx

Changes in v2:
- PATCH 8: Disable PTP by default.
- PATCH 5: TX path: remove timestamp handling
- PATCH 5: RX path: zero the PTP header's reserved area before
  forwarding packets to userspace
- Link to v1: https://lore.kernel.org/r/20260115-ksz8463-ptp-v1-0-bcfe2830cf50@xxxxxxxxxxx

---
Bastien Curutchet (Schneider Electric) (9):
      net: dsa: microchip: Add support for KSZ8463 global irq
      net: dsa: microchip: Decorrelate IRQ domain from port
      net: dsa: microchip: Decorrelate msg_irq index from IRQ bit offset
      net: dsa: microchip: Add support for KSZ8463's PTP interrupts
      net: dsa: tag_ksz: Share code for KSZ8795 and KSZ9893 xmit operations
      net: dsa: microchip: Add KSZ8463 tail tag handling
      net: dsa: microchip: Explicitly enable detection of L2 PTP frames
      net: dsa: microchip: Adapt port offset for KSZ8463's PTP register
      net: dsa: microchip: Add two-step PTP support for KSZ8463

 drivers/net/dsa/microchip/ksz8.c        |  12 +-
 drivers/net/dsa/microchip/ksz8_reg.h    |   1 +
 drivers/net/dsa/microchip/ksz_common.c  |  95 ++++++++++----
 drivers/net/dsa/microchip/ksz_common.h  |   6 +
 drivers/net/dsa/microchip/ksz_ptp.c     | 198 +++++++++++++++++++++++++---
 drivers/net/dsa/microchip/ksz_ptp.h     |   9 ++
 drivers/net/dsa/microchip/ksz_ptp_reg.h |  11 ++
 include/net/dsa.h                       |   2 +
 net/dsa/tag_ksz.c                       | 223 ++++++++++++++++++++------------
 9 files changed, 426 insertions(+), 131 deletions(-)
---
base-commit: 6de23f81a5e08be8fbf5e8d7e9febc72a5b5f27f
change-id: 20260109-ksz8463-ptp-bc723ca7fac4

Best regards,
-- 
Bastien Curutchet (Schneider Electric) <bastien.curutchet@xxxxxxxxxxx>