From: Xie He <xie.he.0141@gmail.com>
To: Martin Schiller <ms@dev.tdt.de>
Cc: Andrew Hendry <andrew.hendry@gmail.com>,
"David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>,
Linux X25 <linux-x25@vger.kernel.org>,
Linux Kernel Network Developers <netdev@vger.kernel.org>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH net-next v2 4/6] net/x25: support NETDEV_CHANGE notifier
Date: Tue, 17 Nov 2020 03:41:24 -0800 [thread overview]
Message-ID: <CAJht_ENE5fGr-rgOd-5Tk_g5RJibaWBn_ey5Avo-2R2opMGcDA@mail.gmail.com> (raw)
In-Reply-To: <20201116135522.21791-5-ms@dev.tdt.de>
On Mon, Nov 16, 2020 at 6:00 AM Martin Schiller <ms@dev.tdt.de> wrote:
>
> This makes it possible to handle carrier lost and detection.
> In case of carrier lost, we shutdown layer 3 and flush all sessions.
>
> @@ -275,6 +275,19 @@ static int x25_device_event(struct notifier_block *this, unsigned long event,
> dev->name);
> x25_link_device_remove(dev);
> break;
> + case NETDEV_CHANGE:
> + pr_debug("X.25: got event NETDEV_CHANGE for device: %s\n",
> + dev->name);
> + if (!netif_carrier_ok(dev)) {
> + pr_debug("X.25: Carrier lost -> set link state down: %s\n",
> + dev->name);
> + nb = x25_get_neigh(dev);
> + if (nb) {
> + x25_link_terminated(nb);
> + x25_neigh_put(nb);
> + }
> + }
> + break;
> }
> }
I think L2 will notify L3 if the L2 connection is terminated. Is this
patch necessary?
next prev parent reply other threads:[~2020-11-17 11:42 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-16 13:55 [PATCH net-next v2 0/6] netdev event handling + neighbour config Martin Schiller
2020-11-16 13:55 ` [PATCH net-next v2 1/6] net/x25: handle additional netdev events Martin Schiller
2020-11-16 13:55 ` [PATCH net-next v2 2/6] net/x25: make neighbour params configurable Martin Schiller
2020-11-16 17:05 ` David Laight
2020-11-16 13:55 ` [PATCH net-next v2 3/6] net/x25: replace x25_kill_by_device with x25_kill_by_neigh Martin Schiller
2020-11-17 19:50 ` Xie He
2020-11-18 8:28 ` Martin Schiller
2020-11-16 13:55 ` [PATCH net-next v2 4/6] net/x25: support NETDEV_CHANGE notifier Martin Schiller
2020-11-17 11:41 ` Xie He [this message]
2020-11-17 12:30 ` Martin Schiller
2020-11-16 13:55 ` [PATCH net-next v2 5/6] net/lapb: support netdev events Martin Schiller
2020-11-16 20:16 ` Xie He
2020-11-17 9:52 ` Martin Schiller
2020-11-17 11:32 ` Xie He
2020-11-17 13:26 ` Martin Schiller
2020-11-17 18:28 ` Xie He
2020-11-18 8:49 ` Martin Schiller
2020-11-18 13:03 ` Xie He
2020-11-18 13:46 ` Xie He
2020-11-18 13:57 ` Martin Schiller
2020-11-16 13:55 ` [PATCH net-next v2 6/6] net/lapb: fix t1 timer handling Martin Schiller
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