Hi all,

This series aims to add two-step PTP support for the KSZ8463 driver. It
depends on a previous series that was recently applied to net-next:
https://lore.kernel.org/all/20260105-ksz-rework-v1-0-a68df7f57375@bootlin.com/

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 adds specific dsa_device_ops for the KSZ8463
Patches 6 to 8 add PTP support for the KSZ8463

Signed-off-by: Bastien Curutchet (Schneider Electric) <bastien.curutchet@bootlin.com>
---
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@bootlin.com

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@bootlin.com

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@bootlin.com

---
Bastien Curutchet (Schneider Electric) (8):
      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: microchip: Add KSZ8463 tail tag handling
      net: dsa: microchip: Enable Ethernet PTP detection
      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     | 178 ++++++++++++++++++++++++++++----
 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                       |  70 +++++++++++++
 9 files changed, 334 insertions(+), 50 deletions(-)
---
base-commit: 3adff276e751051e77be4df8d29eab1cf0856fbf
change-id: 20260109-ksz8463-ptp-bc723ca7fac4

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