Re: [PATCH net] octeontx2: fix PTP RX enable mbox failure on VF
From: Ratheesh Kannoth <rkannoth@marvell.com>
Date: 2026-08-20 04:35:41
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On 2026-08-18 at 09:17:28, Ratheesh Kannoth (rkannoth@marvell.com) wrote:
From: Sai Krishna <redacted>
When a VF enables PTP RX timestamping, the AF must notify the parent PF
so it can adjust its RX data offset before CGX prepends the 8-byte
timestamp header. Use the correct upcall mailbox pattern (wait for zero,
then msg_send_up) instead of msg_send/wait_for_rsp, which causes the
mbox to fail on VF.
Add the CGX_PTP_RX_INFO upcall message and PF/VF handlers to propagate
the PTP enable state to VFs.
Fixes: 30e7ecb6441d ("octeontx2-af: Support for PTP notification to PF")
Signed-off-by: Sai Krishna <redacted>
Signed-off-by: Ratheesh Kannoth <rkannoth@marvell.com>Will address sashiko and "verify_fixes - FAILED" in V2 pw-bot: changes-requested