From: Patrick McHardy <kaber@trash•net>
To: Urs Thuermann <urs@isnogud•escape.de>
Cc: Oliver Hartkopp <oliver@hartkopp•net>,
David Miller <davem@davemloft•net>,
Oliver Hartkopp <oliver.hartkopp@volkswagen•de>,
j.hadi123@gmail•com, netdev@vger•kernel.org
Subject: Re: [patch 5/7] CAN: Add virtual CAN netdevice driver
Date: Mon, 09 Jul 2007 16:18:59 +0200 [thread overview]
Message-ID: <469243D3.3090208@trash.net> (raw)
In-Reply-To: <ygfodil7qpi.fsf@janus.isnogud.escape.de>
Urs Thuermann wrote:
> + * CAN network devices *should* support a local loopback functionality
> + * (see Documentation/networking/can.txt). To test the handling of CAN
> + * interfaces that do not support the loopback both driver types are
> + * implemented inside this vcan driver. In the case that the driver does
> + * not support the loopback the IFF_LOOPBACK remains clear in dev->flags.
> + * This causes the PF_CAN core to perform the loopback as a fallback solution.
> + */
> +
> +static int loopback = 0; /* vcan default: no loopback, just free the skb */
> +module_param(loopback, int, S_IRUGO);
> +MODULE_PARM_DESC(loopback, "Loop back sent frames. vcan default: 0 (Off)");
...
> +static void vcan_setup(struct net_device *dev)
> +{
> + DBG("dev %s\n", dev->name);
> +
> + dev->type = ARPHRD_CAN;
> + dev->mtu = sizeof(struct can_frame);
> + dev->hard_header_len = 0;
> + dev->addr_len = 0;
> + dev->tx_queue_len = 0;
> + dev->flags = IFF_NOARP;
> +
> + /* set flags according to driver capabilities */
> + if (loopback)
> + dev->flags |= IFF_LOOPBACK;
Still configuration of the network device based on module parameters.
What about people that want loopback and non-loopback devices at the
same time?
next prev parent reply other threads:[~2007-07-09 14:19 UTC|newest]
Thread overview: 104+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-06-22 3:44 [patch 0/7] CAN: Add new PF_CAN protocol family, try #3 Urs Thuermann
2007-06-22 3:44 ` [patch 1/7] CAN: Allocate protocol numbers for PF_CAN Urs Thuermann
2007-06-22 3:44 ` [patch 2/7] CAN: Add PF_CAN core module Urs Thuermann
2007-06-22 3:44 ` [patch 3/7] CAN: Add raw protocol Urs Thuermann
2007-06-22 3:44 ` [patch 4/7] CAN: Add broadcast manager (bcm) protocol Urs Thuermann
2007-06-22 3:44 ` [patch 5/7] CAN: Add virtual CAN netdevice driver Urs Thuermann
2007-06-22 11:02 ` Patrick McHardy
2007-06-22 12:22 ` Urs Thuermann
2007-06-22 12:38 ` Patrick McHardy
2007-06-23 12:05 ` Oliver Hartkopp
2007-06-23 12:52 ` Patrick McHardy
2007-06-23 15:13 ` Oliver Hartkopp
2007-06-23 16:25 ` Patrick McHardy
2007-06-23 16:42 ` Oliver Hartkopp
2007-06-23 17:13 ` Patrick McHardy
2007-07-04 11:37 ` Urs Thuermann
2007-07-04 14:01 ` Patrick McHardy
2007-07-09 11:37 ` Urs Thuermann
2007-07-09 14:18 ` Patrick McHardy [this message]
2007-07-09 15:27 ` Oliver Hartkopp
2007-07-11 19:41 ` Oliver Hartkopp
2007-07-11 22:52 ` Patrick McHardy
2007-07-16 6:05 ` Oliver Hartkopp
2007-07-16 8:37 ` David Miller
2007-07-16 13:08 ` Patrick McHardy
2007-07-16 16:27 ` Oliver Hartkopp
2007-07-16 13:07 ` Patrick McHardy
2007-07-16 16:00 ` Oliver Hartkopp
2007-06-23 21:01 ` David Miller
2007-06-23 21:44 ` Oliver Hartkopp
2007-06-24 16:51 ` [CAN] [RFC] skb->iif usage and vcan driver background Oliver Hartkopp
2007-06-25 10:37 ` Patrick McHardy
2007-06-25 14:50 ` Oliver Hartkopp
2007-06-23 20:51 ` [patch 5/7] CAN: Add virtual CAN netdevice driver David Miller
2007-06-23 21:49 ` Oliver Hartkopp
2007-06-22 3:44 ` [patch 6/7] CAN: Add maintainer entries Urs Thuermann
2007-06-22 3:44 ` [patch 7/7] CAN: Add documentation Urs Thuermann
2007-06-22 12:34 ` [patch 0/7] CAN: Add new PF_CAN protocol family, try #3 Patrick McHardy
2007-06-22 15:57 ` Oliver Hartkopp
2007-06-22 16:23 ` Patrick McHardy
2007-06-22 17:19 ` Oliver Hartkopp
-- strict thread matches above, loose matches on Subject: below --
2007-11-16 15:02 [PATCH 0/7] CAN: New PF_CAN protocol family for 2.6.25, update Urs Thuermann
2007-11-16 15:02 ` [PATCH 5/7] CAN: Add virtual CAN netdevice driver Urs Thuermann
2007-11-14 12:13 [PATCH 0/7] CAN: New PF_CAN protocol family for 2.6.25 Urs Thuermann
2007-11-14 12:13 ` [PATCH 5/7] CAN: Add virtual CAN netdevice driver Urs Thuermann
2007-11-14 12:51 ` Patrick McHardy
2007-11-14 13:36 ` Urs Thuermann
2007-11-14 13:45 ` Patrick McHardy
2007-10-05 10:49 [PATCH 0/7] CAN: Add new PF_CAN protocol family, try #10 Urs Thuermann
2007-10-05 10:49 ` [PATCH 5/7] CAN: Add virtual CAN netdevice driver Urs Thuermann
2007-10-02 13:10 [PATCH 0/7] CAN: Add new PF_CAN protocol family, try #9 Urs Thuermann
2007-10-02 13:10 ` [PATCH 5/7] CAN: Add virtual CAN netdevice driver Urs Thuermann
2007-10-02 14:20 ` Arnaldo Carvalho de Melo
2007-10-02 15:07 ` Oliver Hartkopp
2007-10-02 16:46 ` Arnaldo Carvalho de Melo
2007-10-02 21:02 ` Oliver Hartkopp
2007-10-02 21:43 ` Arnaldo Carvalho de Melo
2007-10-02 21:50 ` David Miller
2007-10-03 7:06 ` Oliver Hartkopp
2007-10-02 21:52 ` Stephen Hemminger
2007-10-02 22:04 ` David Miller
2007-10-03 17:47 ` Oliver Hartkopp
2007-10-04 11:52 ` Urs Thuermann
2007-09-25 12:20 [PATCH 0/7] CAN: Add new PF_CAN protocol family, try #8 Urs Thuermann
2007-09-25 12:20 ` [PATCH 5/7] CAN: Add virtual CAN netdevice driver Urs Thuermann
2007-09-25 13:26 ` YOSHIFUJI Hideaki / 吉藤英明
2007-09-25 14:00 ` Urs Thuermann
2007-09-25 14:47 ` Patrick McHardy
2007-09-25 17:55 ` Oliver Hartkopp
2007-09-25 17:53 ` Patrick McHardy
2007-09-25 19:09 ` Oliver Hartkopp
2007-09-20 18:43 [PATCH 0/7] CAN: Add new PF_CAN protocol family, try #7 Urs Thuermann
2007-09-20 18:43 ` [PATCH 5/7] CAN: Add virtual CAN netdevice driver Urs Thuermann
2007-09-27 15:54 ` Eric W. Biederman
2007-09-27 16:16 ` Eric W. Biederman
2007-09-27 19:18 ` David Miller
2007-09-28 8:48 ` Oliver Hartkopp
2007-09-28 16:52 ` Eric W. Biederman
2007-09-28 18:33 ` Oliver Hartkopp
2007-09-17 10:03 [PATCH 0/7] CAN: Add new PF_CAN protocol family, try #6 Urs Thuermann
2007-09-17 10:03 ` [PATCH 5/7] CAN: Add virtual CAN netdevice driver Urs Thuermann
2007-09-18 15:02 ` Patrick McHardy
2007-09-18 22:24 ` Urs Thuermann
2007-09-19 6:26 ` Oliver Hartkopp
2007-09-19 8:41 ` Patrick McHardy
2007-08-04 2:06 [patch 0/7] CAN: Add new PF_CAN protocol family, try #5 Urs Thuermann
2007-08-04 2:07 ` [patch 5/7] CAN: Add virtual CAN netdevice driver Urs Thuermann
2007-05-30 13:11 [patch 0/7] CAN: Add new PF_CAN protocol family, update Urs Thuermann
2007-05-30 13:11 ` [patch 5/7] CAN: Add virtual CAN netdevice driver Urs Thuermann
2007-05-30 17:13 ` Patrick McHardy
2007-05-30 18:39 ` Oliver Hartkopp
2007-05-30 19:16 ` Patrick McHardy
2007-05-30 19:48 ` Oliver Hartkopp
2007-05-30 19:58 ` Patrick McHardy
2007-05-31 5:13 ` Oliver Hartkopp
2007-05-31 20:25 ` Oliver Hartkopp
2007-06-01 14:54 ` Patrick McHardy
2007-06-02 9:51 ` Oliver Hartkopp
2007-06-02 19:58 ` Oliver Hartkopp
2007-06-03 19:16 ` Oliver Hartkopp
2007-06-04 11:53 ` Patrick McHardy
2007-06-04 12:44 ` Urs Thuermann
2007-06-06 11:39 ` Patrick McHardy
2007-06-04 12:17 ` Urs Thuermann
2007-06-04 16:32 ` Oliver Hartkopp
2007-06-04 18:26 ` Oliver Hartkopp
2007-06-02 8:09 ` Urs Thuermann
2007-06-03 18:27 ` Patrick McHardy
2007-05-30 17:28 ` Stephen Hemminger
2007-05-30 18:57 ` Oliver Hartkopp
2007-05-30 19:01 ` Stephen Hemminger
2007-05-30 19:25 ` Oliver Hartkopp
2007-05-16 14:51 [patch 0/7] CAN: Add new PF_CAN protocol family Urs Thuermann
2007-05-16 14:51 ` [patch 5/7] CAN: Add virtual CAN netdevice driver Urs Thuermann
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