From: Simon Horman <horms@kernel.org>
To: Heiner Kallweit <hkallweit1@gmail.com>
Cc: Realtek linux nic maintainers <nic_swsd@realtek.com>,
Andrew Lunn <andrew+netdev@lunn.ch>,
Paolo Abeni <pabeni@redhat.com>, Jakub Kicinski <kuba@kernel.org>,
David Miller <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
"netdev@vger.kernel.org" <netdev@vger.kernel.org>,
Francois Romieu <romieu@fr.zoreil.com>
Subject: Re: [PATCH net v2] r8169: avoid unsolicited interrupts
Date: Fri, 18 Oct 2024 21:17:36 +0100 [thread overview]
Message-ID: <20241018201736.GD1697@kernel.org> (raw)
In-Reply-To: <78e2f535-438f-4212-ad94-a77637ac6c9c@gmail.com>
On Fri, Oct 18, 2024 at 11:08:16AM +0200, Heiner Kallweit wrote:
> It was reported that after resume from suspend a PCI error is logged
> and connectivity is broken. Error message is:
> PCI error (cmd = 0x0407, status_errs = 0x0000)
> The message seems to be a red herring as none of the error bits is set,
> and the PCI command register value also is normal. Exception handling
> for a PCI error includes a chip reset what apparently brakes connectivity
> here. The interrupt status bit triggering the PCI error handling isn't
> actually used on PCIe chip versions, so it's not clear why this bit is
> set by the chip. Fix this by ignoring this bit on PCIe chip versions.
>
> Fixes: 0e4851502f84 ("r8169: merge with version 8.001.00 of Realtek's r8168 driver")
> Closes: https://bugzilla.kernel.org/show_bug.cgi?id=219388
> Tested-by: Atlas Yu <atlas.yu@canonical.com>
> Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Simon Horman <horms@kernel.org>
next prev parent reply other threads:[~2024-10-18 20:17 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-18 9:08 [PATCH net v2] r8169: avoid unsolicited interrupts Heiner Kallweit
2024-10-18 20:17 ` Simon Horman [this message]
2024-10-18 23:01 ` Francois Romieu
2024-10-23 13:50 ` patchwork-bot+netdevbpf
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