From: Ratheesh Kannoth <rkannoth@marvell.com>
To: <hkalra@marvell.com>, <linux-kernel@vger.kernel.org>,
<netdev@vger.kernel.org>, <saikrishnag@marvell.com>,
<sgoutham@marvell.com>
Cc: <andrew+netdev@lunn.ch>, <davem@davemloft.net>,
<edumazet@google.com>, <kuba@kernel.org>, <pabeni@redhat.com>,
<richardcochran@gmail.com>
Subject: Re: [PATCH net] octeontx2: fix PTP RX enable mbox failure on VF
Date: Thu, 20 Aug 2026 10:05:16 +0530 [thread overview]
Message-ID: <aoaEBGetKxYcHHpB@rkannoth-OptiPlex-7090> (raw)
In-Reply-To: <20260818034728.2047614-1-rkannoth@marvell.com>
On 2026-08-18 at 09:17:28, Ratheesh Kannoth (rkannoth@marvell.com) wrote:
> From: Sai Krishna <saikrishnag@marvell.com>
>
> 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 <saikrishnag@marvell.com>
> Signed-off-by: Ratheesh Kannoth <rkannoth@marvell.com>
Will address sashiko and "verify_fixes - FAILED" in V2
pw-bot: changes-requested
prev parent reply other threads:[~2026-08-20 4:35 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-18 3:47 [PATCH net] octeontx2: fix PTP RX enable mbox failure on VF Ratheesh Kannoth
2026-08-20 4:35 ` Ratheesh Kannoth [this message]
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