linux/drivers/net/phy/mscc
Horatiu Vultur 57a92d1465 net: phy: mscc: Stop clearing the the UDPv4 checksum for L2 frames
We have noticed that when PHY timestamping is enabled, L2 frames seems
to be modified by changing two 2 bytes with a value of 0. The place were
these 2 bytes seems to be random(or I couldn't find a pattern).  In most
of the cases the userspace can ignore these frames but if for example
those 2 bytes are in the correction field there is nothing to do.  This
seems to happen when configuring the HW for IPv4 even that the flow is
not enabled.
These 2 bytes correspond to the UDPv4 checksum and once we don't enable
clearing the checksum when using L2 frames then the frame doesn't seem
to be changed anymore.

Fixes: 7d272e63e0 ("net: phy: mscc: timestamping and PHC support")
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Link: https://patch.msgid.link/20250523082716.2935895-1-horatiu.vultur@microchip.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-05-28 09:11:19 +02:00
..
Makefile
mscc.h net: phy: extend PHY package API to support multiple global address 2023-12-17 20:10:07 +00:00
mscc_fc_buffer.h
mscc_mac.h
mscc_macsec.c net: phy: mscc: macsec: reject PN update requests 2023-10-10 10:30:31 +02:00
mscc_macsec.h net: phy: mscc: macsec: do not copy encryption keys 2022-11-18 09:17:42 +00:00
mscc_main.c net: phy: move PHY package related code from phy.h to phy_package.c 2025-03-05 19:13:53 -08:00
mscc_ptp.c net: phy: mscc: Stop clearing the the UDPv4 checksum for L2 frames 2025-05-28 09:11:19 +02:00
mscc_ptp.h
mscc_serdes.c
mscc_serdes.h