From: Jacob Keller <jacob.e.keller@intel.com>
To: Ivan Vecera <ivecera@redhat.com>, <netdev@vger.kernel.org>
Cc: <sassmann@redhat.com>,
Patryk Piotrowski <patryk.piotrowski@intel.com>,
SlawomirX Laba <slawomirx.laba@intel.com>,
Jesse Brandeburg <jesse.brandeburg@intel.com>,
Tony Nguyen <anthony.l.nguyen@intel.com>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
"moderated list:INTEL ETHERNET DRIVERS"
<intel-wired-lan@lists.osuosl.org>,
open list <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH net] iavf: Do not restart Tx queues after reset task failure
Date: Tue, 8 Nov 2022 08:40:44 -0800 [thread overview]
Message-ID: <7bec731c-f650-3c03-05d3-d1d430751179@intel.com> (raw)
In-Reply-To: <20221108102502.2147389-1-ivecera@redhat.com>
On 11/8/2022 2:25 AM, Ivan Vecera wrote:
> After commit aa626da947e9 ("iavf: Detach device during reset task")
> the device is detached during reset task and re-attached at its end.
> The problem occurs when reset task fails because Tx queues are
> restarted during device re-attach and this leads later to a crash.
>
> To resolve this issue properly close the net device in cause of
> failure in reset task to avoid restarting of tx queues at the end.
> Also replace the hacky manipulation with IFF_UP flag by device close
> that clears properly both IFF_UP and __LINK_STATE_START flags.
> In these case iavf_close() does not do anything because the adapter
> state is already __IAVF_DOWN.
Thanks for fixing this. I thought we'd removed the last such use of
incorrect IFF_UP munging in 7d59706dbef8 ("Revert "iavf: Fix deadlock
occurrence during resetting VF interface""), but apparently we had
missed one...
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
next prev parent reply other threads:[~2022-11-08 16:41 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-08 10:25 [PATCH net] iavf: Do not restart Tx queues after reset task failure Ivan Vecera
2022-11-08 16:40 ` Jacob Keller [this message]
2022-11-09 18:20 ` Leon Romanovsky
2022-11-09 20:11 ` Keller, Jacob E
2022-11-10 9:17 ` Leon Romanovsky
2022-11-10 14:51 ` Ivan Vecera
2022-11-10 17:07 ` Leon Romanovsky
[not found] ` <20221110122418.32414666@kernel.org>
2022-11-10 21:07 ` Leon Romanovsky
2022-11-10 21:13 ` Keller, Jacob E
2022-11-18 14:30 ` [Intel-wired-lan] " Jankowski, Konrad0
2022-11-18 14:31 ` Jankowski, Konrad0
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