* Re: [PATCH v3] bgmac: add support for Byte Queue Limits
From: David Miller @ 2013-10-01 5:11 UTC (permalink / raw)
To: eric.dumazet; +Cc: hauke, zajec5, netdev
In-Reply-To: <1380515684.3596.23.camel@edumazet-glaptop.roam.corp.google.com>
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Sun, 29 Sep 2013 21:34:44 -0700
> On Sun, 2013-09-29 at 13:54 +0200, Hauke Mehrtens wrote:
>> This makes it possible to use some more advanced queuing
>> techniques with this driver.
>>
>> When multi queue support will be added some changes to Byte Queue
>> handling is needed.
>>
>> Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
>> ---
>
> Reviewed-by: Eric Dumazet <edumazet@google.com>
Applied.
^ permalink raw reply
* Re: [PATCH net-next] net: add missing sk_max_pacing_rate doc
From: David Miller @ 2013-10-01 5:11 UTC (permalink / raw)
To: eric.dumazet; +Cc: netdev
In-Reply-To: <1380442360.3596.18.camel@edumazet-glaptop.roam.corp.google.com>
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Sun, 29 Sep 2013 01:12:40 -0700
> From: Eric Dumazet <edumazet@google.com>
>
> Warning(include/net/sock.h:411): No description found for parameter
> 'sk_max_pacing_rate'
>
> Lets please "make htmldocs" and kbuild bot.
>
> Reported-by: Wu Fengguang <fengguang.wu@intel.com>
> Signed-off-by: Eric Dumazet <edumazet@google.com>
Applied.
^ permalink raw reply
* Re: [PATCH net-next] net: skb_is_gso_v6() requires skb_is_gso()
From: David Miller @ 2013-10-01 5:11 UTC (permalink / raw)
To: eric.dumazet; +Cc: netdev, eilong
In-Reply-To: <1380442892.3596.22.camel@edumazet-glaptop.roam.corp.google.com>
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Sun, 29 Sep 2013 01:21:32 -0700
> From: Eric Dumazet <edumazet@google.com>
>
> bnx2x makes a dangerous use of skb_is_gso_v6().
>
> It should first make sure skb is a gso packet
>
> Signed-off-by: Eric Dumazet <edumazet@google.com>
> Cc: Eilon Greenstein <eilong@broadcom.com>
Applied.
^ permalink raw reply
* Re: [PATCH] bonding: Fix broken promiscuity reference counting issue
From: David Miller @ 2013-10-01 5:12 UTC (permalink / raw)
To: nhorman; +Cc: netdev, fubar, andy, wudxw
In-Reply-To: <1380298935-32140-1-git-send-email-nhorman@tuxdriver.com>
From: Neil Horman <nhorman@tuxdriver.com>
Date: Fri, 27 Sep 2013 12:22:15 -0400
> Recently grabbed this report:
> https://bugzilla.redhat.com/show_bug.cgi?id=1005567
>
> Of an issue in which the bonding driver, with an attached vlan encountered the
> following errors when bond0 was taken down and back up:
>
> dummy1: promiscuity touches roof, set promiscuity failed. promiscuity feature of
> device might be broken.
>
> The error occurs because, during __bond_release_one, if we release our last
> slave, we take on a random mac address and issue a NETDEV_CHANGEADDR
> notification. With an attached vlan, the vlan may see that the vlan and bond
> mac address were in sync, but no longer are. This triggers a call to dev_uc_add
> and dev_set_rx_mode, which enables IFF_PROMISC on the bond device. Then, when
> we complete __bond_release_one, we use the current state of the bond flags to
> determine if we should decrement the promiscuity of the releasing slave. But
> since the bond changed promiscuity state during the release operation, we
> incorrectly decrement the slave promisc count when it wasn't in promiscuous mode
> to begin with, causing the above error
>
> Fix is pretty simple, just cache the bonding flags at the start of the function
> and use those when determining the need to set promiscuity.
>
> This is also needed for the ALLMULTI flag
>
> CC: Jay Vosburgh <fubar@us.ibm.com>
> CC: Andy Gospodarek <andy@greyhouse.net>
> CC: Mark Wu <wudxw@linux.vnet.ibm.com>
> CC: "David S. Miller" <davem@davemloft.net>
> Reported-by: Mark Wu <wudxw@linux.vnet.ibm.com>
Applied.
^ permalink raw reply
* Re: [PATCH] drivers: net: phy: marvell.c: removed checkpatch.pl warnings
From: David Miller @ 2013-10-01 5:15 UTC (permalink / raw)
To: avi.kp.137; +Cc: michal.simek, lars, RHoover, netdev
In-Reply-To: <1380514004-8701-1-git-send-email-avi.kp.137@gmail.com>
From: Avinash kumar <avi.kp.137@gmail.com>
Date: Mon, 30 Sep 2013 09:36:44 +0530
> removes following warnings-
> drivers/net/phy/marvell.c:37: WARNING: Use #include <linux/io.h> instead of <asm/io.h>
> drivers/net/phy/marvell.c:39: WARNING: Use #include <linux/uaccess.h> instead of <asm/uaccess.h>
>
> Signed-off-by: Avinash Kumar <avi.kp.137@gmail.com>
Applied, thanks.
^ permalink raw reply
* Re: [net-next PATCH V2] virtio-net: switch to use XPS to choose txq
From: David Miller @ 2013-10-01 5:10 UTC (permalink / raw)
To: jasowang; +Cc: netdev, virtualization, linux-kernel, mst
In-Reply-To: <1380526637-35524-1-git-send-email-jasowang@redhat.com>
From: Jason Wang <jasowang@redhat.com>
Date: Mon, 30 Sep 2013 15:37:17 +0800
> We used to use a percpu structure vq_index to record the cpu to queue
> mapping, this is suboptimal since it duplicates the work of XPS and
> loses all other XPS functionality such as allowing use to configure
> their own transmission steering strategy.
>
> So this patch switches to use XPS and suggest a default mapping when
> the number of cpus is equal to the number of queues. With XPS support,
> there's no need for keeping per-cpu vq_index and .ndo_select_queue(),
> so they were removed also.
>
> Cc: Rusty Russell <rusty@rustcorp.com.au>
> Cc: Michael S. Tsirkin <mst@redhat.com>
> Signed-off-by: Jason Wang <jasowang@redhat.com>
> ---
> Changes from V1:
> - use cpumask_of() instead of allocate dynamically
This generates build warnings:
drivers/net/virtio_net.c: In function ‘virtnet_set_affinity’:
drivers/net/virtio_net.c:1093:3: warning: passing argument 2 of ‘netif_set_xps_queue’ discards ‘const’ qualifier from pointer target type [enabled by default]
In file included from drivers/net/virtio_net.c:20:0:
include/linux/netdevice.h:2275:5: note: expected ‘struct cpumask *’ but argument is of type ‘const struct cpumask *’
_______________________________________________
Virtualization mailing list
Virtualization@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/virtualization
^ permalink raw reply
* Re: [PATCH net 1/2] ip_tunnel: Fix a memory corruption in ip_tunnel_xmit
From: Steffen Klassert @ 2013-10-01 5:15 UTC (permalink / raw)
To: David Miller; +Cc: pshelar, netdev
In-Reply-To: <20130930.144026.652414415839724107.davem@davemloft.net>
On Mon, Sep 30, 2013 at 02:40:26PM -0400, David Miller wrote:
>
> Steffen can you respin these patches and make sure to:
>
> 1) Add reference to SHA1_ID and commit header line of commit
> introducing this bug, as Eric requested, in this format:
>
> $SHA1_ID ("Commit header line text.")
Sure, will do that.
>
> 2) __skb_push() --> skb_push()
>
I'll do an additional patch for this, as it was not introduced
with the same commit as the memory corruption I've fixed here.
I'll also add a patch to fix the double unregister of the fallback
device that was introduced with commit 6c742e714d8
("ipip: add x-netns support").
^ permalink raw reply
* Re: [PATCH] ethernet: moxa: fix incorrect placement of __initdata tag
From: David Miller @ 2013-10-01 5:17 UTC (permalink / raw)
To: b.zolnierkie; +Cc: jonas.jensen, netdev, linux-kernel, kyungmin.park
In-Reply-To: <172588984.DhoE4BmVdc@amdc1032>
From: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Date: Mon, 30 Sep 2013 15:18:27 +0200
> __initdata tag should be placed between the variable name and equal
> sign for the variable to be placed in the intended .init.data section.
>
> In this particular case __initdata is incorrect as moxart_mac_driver
> can be used after the driver gets initialized.
>
> Also while at it static-ize moxart_mac_driver.
>
> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Applied, thanks.
^ permalink raw reply
* Re: [PATCH net-next] include/linux/skbuff.h: move CONFIG_XFRM check inside the skb_sec_path()
From: David Miller @ 2013-10-01 5:25 UTC (permalink / raw)
To: kda; +Cc: netdev
In-Reply-To: <1380463645-4633-1-git-send-email-kda@linux-powerpc.org>
From: Denis Kirjanov <kda@linux-powerpc.org>
Date: Sun, 29 Sep 2013 18:07:25 +0400
> And thus we have only one function definition
>
> Signed-off-by: Denis Kirjanov <kda@linux-powerpc.org>
This does not apply cleanly to the current net-next tree.
^ permalink raw reply
* Re: [PATCH net-next] bonding: RCUify bond_set_rx_mode()
From: David Miller @ 2013-10-01 5:27 UTC (permalink / raw)
To: vfalico; +Cc: netdev, joe.lawrence, fubar, andy
In-Reply-To: <1380395936-13429-1-git-send-email-vfalico@redhat.com>
From: Veaceslav Falico <vfalico@redhat.com>
Date: Sat, 28 Sep 2013 21:18:56 +0200
> Currently we rely on rtnl locking in bond_set_rx_mode(), however it's not
> always the case:
>
> RTNL: assertion failed at drivers/net/bonding/bond_main.c (3391)
> ...
> [<ffffffff81651ca5>] dump_stack+0x54/0x74
> [<ffffffffa029e717>] bond_set_rx_mode+0xc7/0xd0 [bonding]
> [<ffffffff81553af7>] __dev_set_rx_mode+0x57/0xa0
> [<ffffffff81557ff8>] __dev_mc_add+0x58/0x70
> [<ffffffff81558020>] dev_mc_add+0x10/0x20
> [<ffffffff8161e26e>] igmp6_group_added+0x18e/0x1d0
> [<ffffffff81186f76>] ? kmem_cache_alloc_trace+0x236/0x260
> [<ffffffff8161f80f>] ipv6_dev_mc_inc+0x29f/0x320
> [<ffffffff8161f9e7>] ipv6_sock_mc_join+0x157/0x260
> ...
>
> Fix this by using RCU primitives.
>
> Reported-by: Joe Lawrence <joe.lawrence@stratus.com>
> Tested-by: Joe Lawrence <joe.lawrence@stratus.com>
> CC: Jay Vosburgh <fubar@us.ibm.com>
> CC: Andy Gospodarek <andy@greyhouse.net>
> Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Applied, thanks.
^ permalink raw reply
* Request.
From: Cham Tao Soon @ 2013-10-01 2:13 UTC (permalink / raw)
To: ctsoon1
I need your assistance to move funds from Singapore. I will forward details
upon your request.
Cham Tao Soon
^ permalink raw reply
* Re: [PATCH 1/2] ipv4 igmp: use in_dev_put in timer handlers instead of __in_dev_put
From: David Miller @ 2013-10-01 5:30 UTC (permalink / raw)
To: noureddine; +Cc: kuznet, jmorris, yoshfuji, kaber, netdev
In-Reply-To: <1380487182-1644-1-git-send-email-noureddine@aristanetworks.com>
From: Salam Noureddine <noureddine@aristanetworks.com>
Date: Sun, 29 Sep 2013 13:39:42 -0700
> It is possible for the timer handlers to run after the call to
> ip_mc_down so use in_dev_put instead of __in_dev_put in the handler
> function in order to do proper cleanup when the refcnt reaches 0.
> Otherwise, the refcnt can reach zero without the in_device being
> destroyed and we end up leaking a reference to the net_device and
> see messages like the following,
>
> unregister_netdevice: waiting for eth0 to become free. Usage count = 1
>
> Tested on linux-3.4.43.
>
> Signed-off-by: Salam Noureddine <noureddine@aristanetworks.com>
Applied and queued up for -stable.
^ permalink raw reply
* Re: [PATCH 2/2] ipv6 mcast: use in6_dev_put in timer handlers instead of __in6_dev_put
From: David Miller @ 2013-10-01 5:30 UTC (permalink / raw)
To: noureddine; +Cc: kuznet, jmorris, yoshfuji, kaber, netdev
In-Reply-To: <1380487294-1676-1-git-send-email-noureddine@aristanetworks.com>
From: Salam Noureddine <noureddine@aristanetworks.com>
Date: Sun, 29 Sep 2013 13:41:34 -0700
> It is possible for the timer handlers to run after the call to
> ipv6_mc_down so use in6_dev_put instead of __in6_dev_put in the
> handler function in order to do proper cleanup when the refcnt
> reaches 0. Otherwise, the refcnt can reach zero without the
> inet6_dev being destroyed and we end up leaking a reference to
> the net_device and see messages like the following,
>
> unregister_netdevice: waiting for eth0 to become free. Usage count = 1
>
> Tested on linux-3.4.43.
>
> Signed-off-by: Salam Noureddine <noureddine@aristanetworks.com>
Applied and queued up for -stable.
^ permalink raw reply
* Re: [PATCH net] skbuff: size of hole is wrong in a comment
From: David Miller @ 2013-10-01 5:32 UTC (permalink / raw)
To: nicolas.dichtel; +Cc: netdev, mgorman
In-Reply-To: <1380543401-29502-1-git-send-email-nicolas.dichtel@6wind.com>
From: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Date: Mon, 30 Sep 2013 14:16:41 +0200
> Since commit c93bdd0e03e8 ("netvm: allow skb allocation to use PFMEMALLOC
> reserves"), hole size is one bit less than what is written in the comment.
>
> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Applied.
^ permalink raw reply
* Re: pull-request: can 2013-09-30
From: David Miller @ 2013-10-01 5:32 UTC (permalink / raw)
To: mkl; +Cc: netdev, linux-can, kernel
In-Reply-To: <1380542343-5299-1-git-send-email-mkl@pengutronix.de>
From: Marc Kleine-Budde <mkl@pengutronix.de>
Date: Mon, 30 Sep 2013 13:59:02 +0200
> here is a fix for the v3.12 release cycle. Lothar Waßmann reported a problem in
> the flexcan driver that leads to an imprecise external abort on imx6. The patch
> by me fixes the problem. It was tested by Lothar on imx53 and imx6.
Pulled, thanks Marc.
^ permalink raw reply
* Re: [PATCH] ll_temac: Reset dma descriptors on ndo_open
From: Ricardo Ribalda Delgado @ 2013-10-01 5:46 UTC (permalink / raw)
To: David Miller; +Cc: joe, jg1.han, Greg Kroah-Hartman, wfp5p, netdev, LKML
In-Reply-To: <20130930.212153.531876068589922786.davem@davemloft.net>
Hello David
lp->tx_bd_ci, lp->tx_bd_next... are only initialized to zero on
temac_of_probe (inside alloc_etherdev). Those vars are used to index
the dma descriptors.
The initialization of lp->tx_bd_v[i].app0 = 0; is redundant, because
it is already done on dma_zalloc_coherent in temac_dma_bd_init called
on open.
What if I move
lp->tx_bd_ci = 0;
lp->tx_bd_next = 0;
lp->tx_bd_tail = 0;
lp->rx_bd_ci = 0;
to temac_dma_bd_init? Will this be more correct?
Without this patch a script like these kills the card in 1-10 iterations:
ifdown eth0
ifdown eth1
while true
do
ifconfig eth1 10.100.10.100
udhcpc -i eth0
ping 192.168.2.1 -c 5 || break
ifconfig eth0 down
ifconfig eth0 10.100.10.100
udhcpc -i eth1
ping 192.168.2.1 -c 5 || break
ifconfig eth1 down
done
Regards
On Tue, Oct 1, 2013 at 6:21 AM, David Miller <davem@davemloft.net> wrote:
> From: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
> Date: Fri, 27 Sep 2013 13:24:28 +0200
>
>> The dma descriptors are only initialized on the probe function.
>>
>> If a packet is on the buffer when temac_stop is called, the dma
>> descriptors can be left on a incorrect status where no other package can
>> be sent.
>>
>> So an interface could be left in an usable state after ifdow/ifup.
>>
>> This patch makes sure that the descriptors are in a proper status when
>> the device is started.
>>
>> Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
>
> This analysis is not correct.
>
> In the current driver, the descriptors are allocated and initialized
> in the open function, not the probe function.
>
> I'm not applying this patch.
--
Ricardo Ribalda
^ permalink raw reply
* Re: [PATCH] ll_temac: Reset dma descriptors on ndo_open
From: David Miller @ 2013-10-01 6:01 UTC (permalink / raw)
To: ricardo.ribalda; +Cc: joe, jg1.han, gregkh, wfp5p, netdev, linux-kernel
In-Reply-To: <CAPybu_0OrwTo7CkuauRpu_ohQRY80U6BJDXQ6=KC0caOFiFCQA@mail.gmail.com>
From: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Date: Tue, 1 Oct 2013 07:46:31 +0200
> What if I move
> lp->tx_bd_ci = 0;
> lp->tx_bd_next = 0;
> lp->tx_bd_tail = 0;
> lp->rx_bd_ci = 0;
>
> to temac_dma_bd_init? Will this be more correct?
Yes, that would be a lot better.
^ permalink raw reply
* Re: [PATCH] dm9601: fix IFF_ALLMULTI handling
From: Peter Korsgaard @ 2013-10-01 6:07 UTC (permalink / raw)
To: David Miller; +Cc: peter, netdev, joseph_chang
In-Reply-To: <20130930.194950.1406135155659503628.davem@davemloft.net>
>>>>> "David" == David Miller <davem@davemloft.net> writes:
Hi,
David> Applied, thanks.
Thanks!
David> It would be so much better if these register values were all
David> properly documented, one by one, with macros.
Yes, I know. I'll take a look at getting rid of all the magic values.
--
Bye, Peter Korsgaard
^ permalink raw reply
* [PATCH v2] ll_temac: Reset dma descriptors indexes on ndo_open
From: Ricardo Ribalda Delgado @ 2013-10-01 6:17 UTC (permalink / raw)
To: David S. Miller, Joe Perches, Jingoo Han, Greg Kroah-Hartman,
Bill Pemberton, netdev, linux-kernel
Cc: Ricardo Ribalda Delgado
The dma descriptors indexes are only initialized on the probe function.
If a packet is on the buffer when temac_stop is called, the dma
descriptors indexes can be left on a incorrect state where no other
package can be sent.
So an interface could be left in an usable state after ifdow/ifup.
This patch makes sure that the descriptors indexes are in a proper
status when the device is open.
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
---
v2: As suggested by David Miller:
- Remove unneded app0=0 on dma descriptors
- Move all code to temac_dma_bd_init
- Fix changelog
drivers/net/ethernet/xilinx/ll_temac_main.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/net/ethernet/xilinx/ll_temac_main.c b/drivers/net/ethernet/xilinx/ll_temac_main.c
index b88121f..0029148 100644
--- a/drivers/net/ethernet/xilinx/ll_temac_main.c
+++ b/drivers/net/ethernet/xilinx/ll_temac_main.c
@@ -297,6 +297,12 @@ static int temac_dma_bd_init(struct net_device *ndev)
lp->rx_bd_p + (sizeof(*lp->rx_bd_v) * (RX_BD_NUM - 1)));
lp->dma_out(lp, TX_CURDESC_PTR, lp->tx_bd_p);
+ /* Init descriptor indexes */
+ lp->tx_bd_ci = 0;
+ lp->tx_bd_next = 0;
+ lp->tx_bd_tail = 0;
+ lp->rx_bd_ci = 0;
+
return 0;
out:
--
1.8.4.rc3
^ permalink raw reply related
* Re: [PATCH] ll_temac: Reset dma descriptors on ndo_open
From: Ricardo Ribalda Delgado @ 2013-10-01 6:18 UTC (permalink / raw)
To: David Miller; +Cc: joe, jg1.han, Greg Kroah-Hartman, wfp5p, netdev, LKML
In-Reply-To: <20131001.020134.756782177490714135.davem@davemloft.net>
Just send a v2 of the patch
http://patchwork.ozlabs.org/patch/279339/
Thanks!
On Tue, Oct 1, 2013 at 8:01 AM, David Miller <davem@davemloft.net> wrote:
> From: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
> Date: Tue, 1 Oct 2013 07:46:31 +0200
>
>> What if I move
>> lp->tx_bd_ci = 0;
>> lp->tx_bd_next = 0;
>> lp->tx_bd_tail = 0;
>> lp->rx_bd_ci = 0;
>>
>> to temac_dma_bd_init? Will this be more correct?
>
> Yes, that would be a lot better.
--
Ricardo Ribalda
^ permalink raw reply
* [PATCH v2.41 0/5] MPLS actions and matches
From: Simon Horman @ 2013-10-01 6:47 UTC (permalink / raw)
To: dev-yBygre7rU0TnMu66kgdUjQ, netdev-u79uwXL29TY76Z2rM5mHXA,
Jesse Gross, Ben Pfaff
Cc: Isaku Yamahata, Ravi K
Hi,
This series implements MPLS actions and matches based on work by
Ravi K, Leo Alterman, Yamahata-san and Joe Stringer.
This series provides two changes
* Patches 1 - 3
Provide user-space support for the VLAN/MPLS tag insertion order
up to and including OpenFlow 1.2, and the different ordering
specified from OpenFlow 1.3. In a nutshell the datapath always
uses the OpenFlow 1.3 ordering, which is to always insert tags
immediately after the L2 header, regardless of the presence of other
tags. And ovs-vswtichd provides compatibility for the behaviour up
to OpenFlow 1.2, which is that MPLS tags should follow VLAN tags
if present.
These patches have been updated since v2.40.
Ben, these are for you to review.
* Patches 4 and 5
Adding basic MPLS action and match support to the kernel datapath
These patches have not been updated since v2.40.
Jesse, these are for you to review.
Differences between v2.41 and v2.40:
* As suggested by Ben Pfaff
+ Expand struct ofpact_reg_load to include a mpls_before_vlan field
rather than using the compat field of the ofpact field of
struct ofpact_reg_load.
+ Pass version to ofpacts_pull_openflow11_actions and
ofpacts_pull_openflow11_instructions. This removes the invalid
assumption that that these functions are passed a full message and are
thus able to deduce the OpenFlow version.
Differences between v2.40 and v2.39:
* Rebase for:
+ New dev_queue_xmit compat code
+ Updated put_vlan()
+ Removal of mpls_depth field from struct flow
* As suggested by Jesse Gross
+ Remove bogus mac_len update from push_mpls()
+ Slightly simplify push_mpls() by using eth_hdr()
+ Remove dubious condition !eth_p_mpls(inner_protocol) on
an skb being considered to be MPLS in netdev_send()
+ Only use compatibility code for MPLS GSO segmentation on kernels
older than 3.11
+ Revamp setting of inner_protocol
1. Do not unconditionally set inner_protocol to the value of
skb->protocol in ovs_execute_actions().
2. Initialise inner_protocol it to zero only if compatibility code is in
use. In the case where compatibility code is not in use it will either
be zero due since the allocation of the skb or some other value set
by some other user.
3. Conditionally set the inner_protocol in push_mpls() to the value of
skb->protocol when entering push_mpls(). The condition is that
inner_protocol is zero and the value of skb->protocol is not an MPLS
ethernet type.
- This new scheme:
+ Pushes logic to set inner_protocol closer to the case where it is
needed.
+ Avoids over-writing values set by other users.
* As suggested by Pravin Shelar
+ Only set and restore skb->protocol in rpl___skb_gso_segment() in the
case of MPLS
+ Add inner_protocol field to struct ovs_gso_cb instead of ovs_skb_cb.
This moves compatibility code closer to where it is used
and creates fewer differences with mainline.
* Update comment on mac_len updates in datapath/actions.c
* Remove HAVE_INNER_PROCOTOL and instead just check
against kernel version 3.11 directly.
HAVE_INNER_PROCOTOL is a hang-over from work done prior
to the merge of inner_protocol into the kernel.
* Remove dubious condition !eth_p_mpls(inner_protocol) on
using inner_protocol as the type in rpl_skb_network_protocol()
* Do not update type of features in rpl_dev_queue_xmit.
Though arguably correct this is not an inherent part of
the changes made by this patch.
* Use skb_cow_head() in push_mpls()
+ Call skb_cow_head(skb, MPLS_HLEN) instead of
make_writable(skb, skb->mac_len) to ensure that there is enough head
room to push an MPLS LSE regardless of whether the skb is cloned or not.
+ This is consistent with the behaviour of rpl__vlan_put_tag().
+ This is a fix for crashes reported when performing mpls_push
with headroom less than 4. This problem was introduced in v3.36.
* Skip popping in mpls_pop if the skb is too short to contain an MPLS LSE
Differences between v2.39 and v2.38:
* Rebase for removal of vlan, checksum and skb->mark compat code
- This includes adding adding a new patch,
"[PATCH v2.39 6/7] datapath: Break out deacceleration portion of
vlan_push" to allow re-use of some existing code.
Differences between v2.38 and v2.37:
* Rebase for SCTP support
* Refactor validate_tp_port() to iterate over eth_types rather
than open-coding the loop. With the addition of SCTP this logic
is now used three times.
Differences between v2.37 and v2.36:
* Rebase
Differences between v2.36 and v2.35:
* Rebase
* Do not add set_ethertype() to datapath/actions.c.
As this patch has evolved this function had devolved into
to sets of functionality wrapped into a single function with
only one line of common code. Refactor things to simply
open-code setting the ether type in the two locations where
set_ethertype() was previously used. The aim here is to improve
readability.
* Update setting skb->ethertype after mpls push and pop.
- In the case of push_mpls it should be set unconditionally
as in v2.35 the behaviour of this function to always push
an MPLS LSE before any VLAN tags.
- In the case of mpls_pop eth_p_mpls(skb->protocol) is a better
test than skb->protocol != htons(ETH_P_8021Q) as it will give the
correct behaviour in the presence of other VLAN ethernet types,
for example 0x88a8 which is used by 802.1ad. Moreover, it seems
correct to update the ethernet type if it was previously set
according to the top-most MPLS LSE.
* Deaccelerate VLANs when pushing MPLS tags the
- Since v2.35 MPLS push will insert an MPLS LSE before any VLAN tags.
This means that if an accelerated tag is present it should be
deaccelerated to ensure it ends up in the correct position.
* Update skb->mac_len in push_mpls() so that it will be correct
when used by a subsequent call to pop_mpls().
As things stand I do not believe this is strictly necessary as
ovs-vswitchd will not send a pop MPLS action after a push MPLS action.
However, I have added this in order to code more defensively as I believe
that if such a sequence did occur it would be rather unobvious why
it didn't work.
* Do not add skb_cow_head() call in push_mpls().
It is unnecessary as there is a make_writable() call.
This change was also made in v2.30 but some how the
code regressed between then and v2.35.
Differences between v2.35 and v2.34:
* Add support for the tag ordering specified up until OpenFlow 1.2 and
the ordering specified from OpenFlow 1.3.
* Correct error in datapath patch's handling of GSO in the presence
of MPLS and absence of VLANs.
To aid review this series is available in git at:
git://github.com/horms/openvswitch.git devel/mpls-v2.41
Patch list and overall diffstat:
Joe Stringer (3):
odp: Allow VLAN actions after MPLS actions
ofp-actions: Add separate OpenFlow 1.3 action parser
lib: Support pushing of MPLS LSE before or after VLAN tag
Simon Horman (2):
datapath: Break out deacceleration portion of vlan_push
datapath: Add basic MPLS support to kernel
datapath/Modules.mk | 1 +
datapath/actions.c | 156 ++++++++-
datapath/datapath.c | 259 ++++++++++++--
datapath/datapath.h | 2 +
datapath/flow.c | 58 ++-
datapath/flow.h | 17 +-
datapath/linux/compat/gso.c | 117 ++++++-
datapath/linux/compat/gso.h | 53 +++
datapath/linux/compat/include/linux/netdevice.h | 14 +-
datapath/linux/compat/netdevice.c | 28 --
datapath/mpls.h | 15 +
include/linux/openvswitch.h | 7 +-
lib/flow.c | 2 +-
lib/odp-util.c | 9 +-
lib/odp-util.h | 2 +-
lib/ofp-actions.c | 68 +++-
lib/ofp-actions.h | 9 +
lib/ofp-print.c | 2 +-
lib/ofp-util.c | 24 +-
lib/ofp-util.h | 2 +-
lib/packets.c | 10 +-
lib/packets.h | 2 +-
ofproto/ofproto-dpif-xlate.c | 110 ++++--
ofproto/ofproto-dpif-xlate.h | 5 +
tests/ofproto-dpif.at | 446 ++++++++++++++++++++++++
utilities/ovs-ofctl.c | 8 +-
26 files changed, 1273 insertions(+), 153 deletions(-)
create mode 100644 datapath/mpls.h
--
1.8.4
^ permalink raw reply
* [PATCH v2.41 2/5] ofp-actions: Add separate OpenFlow 1.3 action parser
From: Simon Horman @ 2013-10-01 6:47 UTC (permalink / raw)
To: dev-yBygre7rU0TnMu66kgdUjQ, netdev-u79uwXL29TY76Z2rM5mHXA,
Jesse Gross, Ben Pfaff
Cc: Isaku Yamahata, Ravi K
In-Reply-To: <1380610064-14856-1-git-send-email-horms-/R6kz+dDXgpPR4JQBCEnsQ@public.gmane.org>
From: Joe Stringer <joe-Q1GJJQv1iO6lP80pJB477g@public.gmane.org>
This patch adds new ofpact_from_openflow13() and
ofpacts_from_openflow13() functions parallel to the existing ofpact
handling code. In the OpenFlow 1.3 version, push_mpls is handled
differently, but all other actions are handled by the existing code.
In the case of push_mpls for OpenFlow 1.3 the new mpls_before_vlan field of
struct ofpact_push_mpls is set to true. This will be used by a subsequent
patch to allow allow the correct VLAN+MPLS datapath behaviour to be
determined at odp translation time.
Signed-off-by: Joe Stringer <joe-Q1GJJQv1iO6lP80pJB477g@public.gmane.org>
Signed-off-by: Simon Horman <horms-/R6kz+dDXgpPR4JQBCEnsQ@public.gmane.org>
---
v2.41 [Simon Horman]
* As suggested by Ben Pfaff
+ Expand struct ofpact_reg_load to include a mpls_before_vlan field
rather than using the compat field of the ofpact field of
struct ofpact_reg_load.
+ Pass version to ofpacts_pull_openflow11_actions and
ofpacts_pull_openflow11_instructions. This removes the invalid
assumption that that these functions are passed a full message and are
thus able to deduce the OpenFlow version.
v2.36 - v2.40
* No change
v2.35 [Joe Stringer]
* First post
---
lib/ofp-actions.c | 68 ++++++++++++++++++++++++++++++++++++++++++++++++---
lib/ofp-actions.h | 9 +++++++
lib/ofp-print.c | 2 +-
lib/ofp-util.c | 24 ++++++++++--------
lib/ofp-util.h | 2 +-
utilities/ovs-ofctl.c | 8 +++---
6 files changed, 93 insertions(+), 20 deletions(-)
diff --git a/lib/ofp-actions.c b/lib/ofp-actions.c
index 65430f3..434d020 100644
--- a/lib/ofp-actions.c
+++ b/lib/ofp-actions.c
@@ -881,6 +881,40 @@ ofpacts_from_openflow11(const union ofp_action *in, size_t n_in,
return ofpacts_from_openflow(in, n_in, out, ofpact_from_openflow11);
}
\f
+static enum ofperr
+ofpact_from_openflow13(const union ofp_action *a, struct ofpbuf *out)
+{
+ enum ofputil_action_code code;
+ enum ofperr error;
+
+ error = decode_openflow11_action(a, &code);
+ if (error) {
+ return error;
+ }
+
+ if (code == OFPUTIL_OFPAT11_PUSH_MPLS) {
+ struct ofpact_push_mpls *oam;
+ struct ofp11_action_push *oap = (struct ofp11_action_push *)a;
+ if (!eth_type_mpls(oap->ethertype)) {
+ return OFPERR_OFPBAC_BAD_ARGUMENT;
+ }
+ oam = ofpact_put_PUSH_MPLS(out);
+ oam->ethertype = oap->ethertype;
+ oam->mpls_before_vlan = true;
+ } else {
+ return ofpact_from_openflow11(a, out);
+ }
+
+ return error;
+}
+
+static enum ofperr
+ofpacts_from_openflow13(const union ofp_action *in, size_t n_in,
+ struct ofpbuf *out)
+{
+ return ofpacts_from_openflow(in, n_in, out, ofpact_from_openflow13);
+}
+\f
/* OpenFlow 1.1 instructions. */
#define DEFINE_INST(ENUM, STRUCT, EXTENSIBLE, NAME) \
@@ -1085,11 +1119,14 @@ get_actions_from_instruction(const struct ofp11_instruction *inst,
*n_actions = (ntohs(inst->len) - sizeof *inst) / OFP11_INSTRUCTION_ALIGN;
}
-/* Attempts to convert 'actions_len' bytes of OpenFlow 1.1 actions from the
+/* Attempts to convert 'actions_len' bytes of OpenFlow actions from the
* front of 'openflow' into ofpacts. On success, replaces any existing content
* in 'ofpacts' by the converted ofpacts; on failure, clears 'ofpacts'.
* Returns 0 if successful, otherwise an OpenFlow error.
*
+ * Actions are processed according to their OpenFlow version which
+ * is provided in the 'version' parameter.
+ *
* In most places in OpenFlow 1.1 and 1.2, actions appear encapsulated in
* instructions, so you should call ofpacts_pull_openflow11_instructions()
* instead of this function.
@@ -1101,15 +1138,27 @@ get_actions_from_instruction(const struct ofp11_instruction *inst,
* valid in a specific context. */
enum ofperr
ofpacts_pull_openflow11_actions(struct ofpbuf *openflow,
+ enum ofp_version version,
unsigned int actions_len,
struct ofpbuf *ofpacts)
{
- return ofpacts_pull_actions(openflow, actions_len, ofpacts,
- ofpacts_from_openflow11);
+ switch (version) {
+ case OFP10_VERSION:
+ case OFP11_VERSION:
+ case OFP12_VERSION:
+ return ofpacts_pull_actions(openflow, actions_len, ofpacts,
+ ofpacts_from_openflow11);
+ case OFP13_VERSION:
+ return ofpacts_pull_actions(openflow, actions_len, ofpacts,
+ ofpacts_from_openflow13);
+ default:
+ NOT_REACHED();
+ }
}
enum ofperr
ofpacts_pull_openflow11_instructions(struct ofpbuf *openflow,
+ enum ofp_version version,
unsigned int instructions_len,
struct ofpbuf *ofpacts)
{
@@ -1160,7 +1209,18 @@ ofpacts_pull_openflow11_instructions(struct ofpbuf *openflow,
get_actions_from_instruction(insts[OVSINST_OFPIT11_APPLY_ACTIONS],
&actions, &n_actions);
- error = ofpacts_from_openflow11(actions, n_actions, ofpacts);
+ switch (version) {
+ case OFP10_VERSION:
+ case OFP11_VERSION:
+ case OFP12_VERSION:
+ error = ofpacts_from_openflow11(actions, n_actions, ofpacts);
+ break;
+ case OFP13_VERSION:
+ error = ofpacts_from_openflow13(actions, n_actions, ofpacts);
+ break;
+ default:
+ NOT_REACHED();
+ }
if (error) {
goto exit;
}
diff --git a/lib/ofp-actions.h b/lib/ofp-actions.h
index 0876ed7..d67fc3f 100644
--- a/lib/ofp-actions.h
+++ b/lib/ofp-actions.h
@@ -332,6 +332,13 @@ struct ofpact_reg_load {
struct ofpact_push_mpls {
struct ofpact ofpact;
ovs_be16 ethertype;
+ bool mpls_before_vlan; /* If true then the MPLS LSE will be added
+ * immediately after the ethernet header
+ * and before any VLAN tags that are present.
+ * This is the behaviour for OpenFlow 1.3+.
+ * Otherwise the MPLS LSE will be added after
+ * any VLAN tags that are present. This is the
+ * behaviour for OpenFlow 1.1 and 1.2. */
};
/* OFPACT_POP_MPLS
@@ -504,9 +511,11 @@ enum ofperr ofpacts_pull_openflow10(struct ofpbuf *openflow,
unsigned int actions_len,
struct ofpbuf *ofpacts);
enum ofperr ofpacts_pull_openflow11_actions(struct ofpbuf *openflow,
+ enum ofp_version version,
unsigned int actions_len,
struct ofpbuf *ofpacts);
enum ofperr ofpacts_pull_openflow11_instructions(struct ofpbuf *openflow,
+ enum ofp_version version,
unsigned int instructions_len,
struct ofpbuf *ofpacts);
enum ofperr ofpacts_check(const struct ofpact[], size_t ofpacts_len,
diff --git a/lib/ofp-print.c b/lib/ofp-print.c
index 6fe1cee..a0615b5 100644
--- a/lib/ofp-print.c
+++ b/lib/ofp-print.c
@@ -2224,7 +2224,7 @@ ofp_print_group_desc(struct ds *s, const struct ofp_header *oh)
struct ofputil_group_desc gd;
int retval;
- retval = ofputil_decode_group_desc_reply(&gd, &b);
+ retval = ofputil_decode_group_desc_reply(&gd, &b, oh->version);
if (retval) {
if (retval != EOF) {
ds_put_cstr(s, " ***parse error***");
diff --git a/lib/ofp-util.c b/lib/ofp-util.c
index 173b534..570447a 100644
--- a/lib/ofp-util.c
+++ b/lib/ofp-util.c
@@ -1504,7 +1504,8 @@ ofputil_decode_flow_mod(struct ofputil_flow_mod *fm,
return error;
}
- error = ofpacts_pull_openflow11_instructions(&b, b.size, ofpacts);
+ error = ofpacts_pull_openflow11_instructions(&b, oh->version,
+ b.size, ofpacts);
if (error) {
return error;
}
@@ -2360,7 +2361,8 @@ ofputil_decode_flow_stats_reply(struct ofputil_flow_stats *fs,
return EINVAL;
}
- if (ofpacts_pull_openflow11_instructions(msg, length - sizeof *ofs -
+ if (ofpacts_pull_openflow11_instructions(msg, oh->version,
+ length - sizeof *ofs -
padded_match_len, ofpacts)) {
VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply bad instructions");
return EINVAL;
@@ -3092,7 +3094,8 @@ ofputil_decode_packet_out(struct ofputil_packet_out *po,
return error;
}
- error = ofpacts_pull_openflow11_actions(&b, ntohs(opo->actions_len),
+ error = ofpacts_pull_openflow11_actions(&b, oh->version,
+ ntohs(opo->actions_len),
ofpacts);
if (error) {
return error;
@@ -5674,8 +5677,8 @@ ofputil_append_group_desc_reply(const struct ofputil_group_desc *gds,
}
static enum ofperr
-ofputil_pull_buckets(struct ofpbuf *msg, size_t buckets_length,
- struct list *buckets)
+ofputil_pull_buckets(struct ofpbuf *msg, enum ofp_version version,
+ size_t buckets_length, struct list *buckets)
{
struct ofp11_bucket *ob;
@@ -5708,8 +5711,8 @@ ofputil_pull_buckets(struct ofpbuf *msg, size_t buckets_length,
buckets_length -= ob_len;
ofpbuf_init(&ofpacts, 0);
- error = ofpacts_pull_openflow11_actions(msg, ob_len - sizeof *ob,
- &ofpacts);
+ error = ofpacts_pull_openflow11_actions(msg, version,
+ ob_len - sizeof *ob, &ofpacts);
if (error) {
ofpbuf_uninit(&ofpacts);
ofputil_bucket_list_destroy(buckets);
@@ -5745,7 +5748,7 @@ ofputil_pull_buckets(struct ofpbuf *msg, size_t buckets_length,
* otherwise a positive errno value. */
int
ofputil_decode_group_desc_reply(struct ofputil_group_desc *gd,
- struct ofpbuf *msg)
+ struct ofpbuf *msg, enum ofp_version version)
{
struct ofp11_group_desc_stats *ogds;
size_t length;
@@ -5774,7 +5777,8 @@ ofputil_decode_group_desc_reply(struct ofputil_group_desc *gd,
return OFPERR_OFPBRC_BAD_LEN;
}
- return ofputil_pull_buckets(msg, length - sizeof *ogds, &gd->buckets);
+ return ofputil_pull_buckets(msg, version, length - sizeof *ogds,
+ &gd->buckets);
}
/* Converts abstract group mod 'gm' into a message for OpenFlow version
@@ -5857,7 +5861,7 @@ ofputil_decode_group_mod(const struct ofp_header *oh,
gm->type = ogm->type;
gm->group_id = ntohl(ogm->group_id);
- return ofputil_pull_buckets(&msg, msg.size, &gm->buckets);
+ return ofputil_pull_buckets(&msg, oh->version, msg.size, &gm->buckets);
}
/* Parse a queue status request message into 'oqsr'.
diff --git a/lib/ofp-util.h b/lib/ofp-util.h
index d5f34d7..5fa8fee 100644
--- a/lib/ofp-util.h
+++ b/lib/ofp-util.h
@@ -973,7 +973,7 @@ int ofputil_decode_group_stats_reply(struct ofpbuf *,
struct ofputil_group_stats *);
int ofputil_decode_group_desc_reply(struct ofputil_group_desc *,
- struct ofpbuf *);
+ struct ofpbuf *, enum ofp_version);
void ofputil_append_group_desc_reply(const struct ofputil_group_desc *,
struct list *buckets,
diff --git a/utilities/ovs-ofctl.c b/utilities/ovs-ofctl.c
index c2cc1f6..00d35aa 100644
--- a/utilities/ovs-ofctl.c
+++ b/utilities/ovs-ofctl.c
@@ -2968,8 +2968,8 @@ ofctl_parse_ofp11_actions(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
/* Convert to ofpacts. */
ofpbuf_init(&ofpacts, 0);
size = of11_in.size;
- error = ofpacts_pull_openflow11_actions(&of11_in, of11_in.size,
- &ofpacts);
+ error = ofpacts_pull_openflow11_actions(&of11_in, OFP11_VERSION,
+ of11_in.size, &ofpacts);
if (error) {
printf("bad OF1.1 actions: %s\n\n", ofperr_get_name(error));
ofpbuf_uninit(&ofpacts);
@@ -3036,8 +3036,8 @@ ofctl_parse_ofp11_instructions(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
/* Convert to ofpacts. */
ofpbuf_init(&ofpacts, 0);
size = of11_in.size;
- error = ofpacts_pull_openflow11_instructions(&of11_in, of11_in.size,
- &ofpacts);
+ error = ofpacts_pull_openflow11_instructions(&of11_in, OFP11_VERSION,
+ of11_in.size, &ofpacts);
if (!error) {
/* Verify actions. */
struct flow flow;
--
1.8.4
^ permalink raw reply related
* [PATCH v2.41 4/5] datapath: Break out deacceleration portion of vlan_push
From: Simon Horman @ 2013-10-01 6:47 UTC (permalink / raw)
To: dev-yBygre7rU0TnMu66kgdUjQ, netdev-u79uwXL29TY76Z2rM5mHXA,
Jesse Gross, Ben Pfaff
Cc: Isaku Yamahata, Ravi K
In-Reply-To: <1380610064-14856-1-git-send-email-horms-/R6kz+dDXgpPR4JQBCEnsQ@public.gmane.org>
Break out deacceleration portion of vlan_push into vlan_put
so that it may be re-used by mpls_push.
For both vlan_push and mpls_push if there is an accelerated VLAN tag
present then it should be deaccelerated, adding it to the data of
the skb, before the new tag is added.
Signed-off-by: Simon Horman <horms-/R6kz+dDXgpPR4JQBCEnsQ@public.gmane.org>
---
v2.40
* As suggested by Jesse Gross
+ Simplify vlan_push by returning an error code
rather than an error code encoded as a struct xkb_buff *
v2.39
* First post
---
datapath/actions.c | 29 +++++++++++++++++++----------
1 file changed, 19 insertions(+), 10 deletions(-)
diff --git a/datapath/actions.c b/datapath/actions.c
index 30ea1d2..d961e5d 100644
--- a/datapath/actions.c
+++ b/datapath/actions.c
@@ -105,22 +105,31 @@ static int pop_vlan(struct sk_buff *skb)
return 0;
}
-static int push_vlan(struct sk_buff *skb, const struct ovs_action_push_vlan *vlan)
+/* push down current VLAN tag */
+static int put_vlan(struct sk_buff *skb)
{
- if (unlikely(vlan_tx_tag_present(skb))) {
- u16 current_tag;
+ u16 current_tag = vlan_tx_tag_get(skb);
- /* push down current VLAN tag */
- current_tag = vlan_tx_tag_get(skb);
+ if (!__vlan_put_tag(skb, skb->vlan_proto, current_tag))
+ return -ENOMEM;
- if (!__vlan_put_tag(skb, skb->vlan_proto, current_tag))
- return -ENOMEM;
+ if (skb->ip_summed == CHECKSUM_COMPLETE)
+ skb->csum = csum_add(skb->csum, csum_partial(skb->data
+ + (2 * ETH_ALEN), VLAN_HLEN, 0));
- if (skb->ip_summed == CHECKSUM_COMPLETE)
- skb->csum = csum_add(skb->csum, csum_partial(skb->data
- + (2 * ETH_ALEN), VLAN_HLEN, 0));
+ return 0;
+}
+static int push_vlan(struct sk_buff *skb, const struct ovs_action_push_vlan *vlan)
+{
+ if (unlikely(vlan_tx_tag_present(skb))) {
+ int err;
+
+ err = put_vlan(skb);
+ if (unlikely(err))
+ return err;
}
+
__vlan_hwaccel_put_tag(skb, vlan->vlan_tpid, ntohs(vlan->vlan_tci) & ~VLAN_TAG_PRESENT);
return 0;
}
--
1.8.4
^ permalink raw reply related
* [PATCH v2.41 1/5] odp: Allow VLAN actions after MPLS actions
From: Simon Horman @ 2013-10-01 6:47 UTC (permalink / raw)
To: dev, netdev, Jesse Gross, Ben Pfaff
Cc: Pravin B Shelar, Ravi K, Isaku Yamahata, Joe Stringer
In-Reply-To: <1380610064-14856-1-git-send-email-horms@verge.net.au>
From: Joe Stringer <joe@wand.net.nz>
OpenFlow 1.1 and 1.2, and 1.3 differ in their handling of MPLS actions in the
presence of VLAN tags. To allow correct behaviour to be committed in
each situation, this patch adds a second round of VLAN tag action
handling to commit_odp_actions(), which occurs after MPLS actions. This
is implemented with a new field in 'struct xlate_in' called 'vlan_tci'.
When an push_mpls action is composed, the flow's current VLAN state is
stored into xin->vlan_tci, and flow->vlan_tci is set to 0 (pop_vlan). If
a VLAN tag is present, it is stripped; if not, then there is no change.
Any later modifications to the VLAN state is written to xin->vlan_tci.
When committing the actions, flow->vlan_tci is used before MPLS actions,
and xin->vlan_tci is used afterwards. This retains the current datapath
behaviour, but allows VLAN actions to be applied in a more flexible
manner.
Both before and after this patch MPLS LSEs are pushed onto a packet after
any VLAN tags that may be present. This is the behaviour described in
OpenFlow 1.1 and 1.2. OpenFlow 1.3 specifies that MPLS LSEs should be
pushed onto a packet before any VLAN tags that are present. Support
for this will be added by a subsequent patch that makes use of
the infrastructure added by this patch.
Signed-off-by: Joe Stringer <joe@wand.net.nz>
Signed-off-by: Simon Horman <horms@verge.net.au>
---
v2.41
* Rework comments to make things a little clearer
v2.40
* Rebase for removal of mpls_depth from struct flow
v2.38 - v2.39
* No change
v2.37
* Rebase
v2.36
* No change
v2.5
* First post
---
lib/odp-util.c | 9 +-
lib/odp-util.h | 2 +-
ofproto/ofproto-dpif-xlate.c | 101 ++++++++++++++++-----
ofproto/ofproto-dpif-xlate.h | 5 ++
tests/ofproto-dpif.at | 209 +++++++++++++++++++++++++++++++++++++++++++
5 files changed, 303 insertions(+), 23 deletions(-)
diff --git a/lib/odp-util.c b/lib/odp-util.c
index 0785c6a..fcfa91b 100644
--- a/lib/odp-util.c
+++ b/lib/odp-util.c
@@ -3549,11 +3549,15 @@ commit_set_pkt_mark_action(const struct flow *flow, struct flow *base,
* key from 'base' into 'flow', and then changes 'base' the same way. Does not
* commit set_tunnel actions. Users should call commit_odp_tunnel_action()
* in addition to this function if needed. Sets fields in 'wc' that are
- * used as part of the action. */
+ * used as part of the action.
+ *
+ * VLAN actions may be committed twice; If vlan_tci in 'flow' differs from the
+ * one in 'base', then it is committed before MPLS actions. If 'final_vlan_tci'
+ * differs from 'flow->vlan_tci', it is committed afterwards. */
void
commit_odp_actions(const struct flow *flow, struct flow *base,
struct ofpbuf *odp_actions, struct flow_wildcards *wc,
- int *mpls_depth_delta)
+ int *mpls_depth_delta, ovs_be16 final_vlan_tci)
{
commit_set_ether_addr_action(flow, base, odp_actions, wc);
commit_vlan_action(flow->vlan_tci, base, odp_actions, wc);
@@ -3564,6 +3568,7 @@ commit_odp_actions(const struct flow *flow, struct flow *base,
* that it is no longer IP and thus nw and port actions are no longer valid.
*/
commit_mpls_action(flow, base, odp_actions, wc, mpls_depth_delta);
+ commit_vlan_action(final_vlan_tci, base, odp_actions, wc);
commit_set_priority_action(flow, base, odp_actions, wc);
commit_set_pkt_mark_action(flow, base, odp_actions, wc);
}
diff --git a/lib/odp-util.h b/lib/odp-util.h
index 4abf543..c7fc1eb 100644
--- a/lib/odp-util.h
+++ b/lib/odp-util.h
@@ -131,7 +131,7 @@ void commit_odp_tunnel_action(const struct flow *, struct flow *base,
struct ofpbuf *odp_actions);
void commit_odp_actions(const struct flow *, struct flow *base,
struct ofpbuf *odp_actions, struct flow_wildcards *wc,
- int *mpls_depth_delta);
+ int *mpls_depth_delta, ovs_be16 final_vlan_tci);
\f
/* ofproto-dpif interface.
*
diff --git a/ofproto/ofproto-dpif-xlate.c b/ofproto/ofproto-dpif-xlate.c
index cced7cc..6757933 100644
--- a/ofproto/ofproto-dpif-xlate.c
+++ b/ofproto/ofproto-dpif-xlate.c
@@ -982,10 +982,11 @@ static void
output_normal(struct xlate_ctx *ctx, const struct xbundle *out_xbundle,
uint16_t vlan)
{
- ovs_be16 *flow_tci = &ctx->xin->flow.vlan_tci;
+ ovs_be16 *flow_tci = &ctx->xin->vlan_tci;
uint16_t vid;
ovs_be16 tci, old_tci;
struct xport *xport;
+ bool flow_tci_equal_to_xin = (*flow_tci == ctx->xin->flow.vlan_tci);
vid = output_vlan_to_vid(out_xbundle, vlan);
if (list_is_empty(&out_xbundle->xports)) {
@@ -1016,9 +1017,15 @@ output_normal(struct xlate_ctx *ctx, const struct xbundle *out_xbundle,
}
}
*flow_tci = tci;
+ if (flow_tci_equal_to_xin) {
+ ctx->xin->flow.vlan_tci = tci;
+ }
compose_output_action(ctx, xport->ofp_port);
*flow_tci = old_tci;
+ if (flow_tci_equal_to_xin) {
+ ctx->xin->flow.vlan_tci = old_tci;
+ }
}
/* A VM broadcasts a gratuitous ARP to indicate that it has resumed after
@@ -1251,7 +1258,7 @@ xlate_normal(struct xlate_ctx *ctx)
/* Drop malformed frames. */
if (flow->dl_type == htons(ETH_TYPE_VLAN) &&
- !(flow->vlan_tci & htons(VLAN_CFI))) {
+ !(ctx->xin->vlan_tci & htons(VLAN_CFI))) {
if (ctx->xin->packet != NULL) {
static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
VLOG_WARN_RL(&rl, "bridge %s: dropping packet with partial "
@@ -1275,7 +1282,7 @@ xlate_normal(struct xlate_ctx *ctx)
}
/* Check VLAN. */
- vid = vlan_tci_to_vid(flow->vlan_tci);
+ vid = vlan_tci_to_vid(ctx->xin->vlan_tci);
if (!input_vid_is_valid(vid, in_xbundle, ctx->xin->packet != NULL)) {
xlate_report(ctx, "disallowed VLAN VID for this input port, dropping");
return;
@@ -1533,7 +1540,7 @@ compose_output_action__(struct xlate_ctx *ctx, ofp_port_t ofp_port,
const struct xport *xport = get_ofp_port(ctx->xbridge, ofp_port);
struct flow_wildcards *wc = &ctx->xout->wc;
struct flow *flow = &ctx->xin->flow;
- ovs_be16 flow_vlan_tci;
+ ovs_be16 flow_vlan_tci, xin_vlan_tci;
uint32_t flow_pkt_mark;
uint8_t flow_nw_tos;
odp_port_t out_port, odp_port;
@@ -1602,6 +1609,7 @@ compose_output_action__(struct xlate_ctx *ctx, ofp_port_t ofp_port,
}
flow_vlan_tci = flow->vlan_tci;
+ xin_vlan_tci = ctx->xin->vlan_tci;
flow_pkt_mark = flow->pkt_mark;
flow_nw_tos = flow->nw_tos;
@@ -1641,19 +1649,20 @@ compose_output_action__(struct xlate_ctx *ctx, ofp_port_t ofp_port,
wc->masks.vlan_tci |= htons(VLAN_VID_MASK | VLAN_CFI);
}
vlandev_port = vsp_realdev_to_vlandev(ctx->xbridge->ofproto, ofp_port,
- flow->vlan_tci);
+ ctx->xin->vlan_tci);
if (vlandev_port == ofp_port) {
out_port = odp_port;
} else {
out_port = ofp_port_to_odp_port(ctx->xbridge, vlandev_port);
flow->vlan_tci = htons(0);
+ ctx->xin->vlan_tci = htons(0);
}
}
if (out_port != ODPP_NONE) {
commit_odp_actions(flow, &ctx->base_flow,
&ctx->xout->odp_actions, &ctx->xout->wc,
- &ctx->mpls_depth_delta);
+ &ctx->mpls_depth_delta, ctx->xin->vlan_tci);
nl_msg_put_odp_port(&ctx->xout->odp_actions, OVS_ACTION_ATTR_OUTPUT,
out_port);
@@ -1665,6 +1674,7 @@ compose_output_action__(struct xlate_ctx *ctx, ofp_port_t ofp_port,
out:
/* Restore flow */
flow->vlan_tci = flow_vlan_tci;
+ ctx->xin->vlan_tci = xin_vlan_tci;
flow->pkt_mark = flow_pkt_mark;
flow->nw_tos = flow_nw_tos;
}
@@ -1809,7 +1819,7 @@ execute_controller_action(struct xlate_ctx *ctx, int len,
commit_odp_actions(&ctx->xin->flow, &ctx->base_flow,
&ctx->xout->odp_actions, &ctx->xout->wc,
- &ctx->mpls_depth_delta);
+ &ctx->mpls_depth_delta, ctx->xin->vlan_tci);
odp_execute_actions(NULL, packet, &key, ctx->xout->odp_actions.data,
ctx->xout->odp_actions.size, NULL, NULL);
@@ -2197,7 +2207,7 @@ xlate_sample_action(struct xlate_ctx *ctx,
commit_odp_actions(&ctx->xin->flow, &ctx->base_flow,
&ctx->xout->odp_actions, &ctx->xout->wc,
- &ctx->mpls_depth_delta);
+ &ctx->mpls_depth_delta, ctx->xin->vlan_tci);
compose_flow_sample_cookie(os->probability, os->collector_set_id,
os->obs_domain_id, os->obs_point_id, &cookie);
@@ -2226,13 +2236,35 @@ may_receive(const struct xport *xport, struct xlate_ctx *ctx)
}
static void
+vlan_tci_restore(struct xlate_in *xin, ovs_be16 *tci_ptr, ovs_be16 orig_tci)
+{
+ /* If MPLS actions were executed after vlan actions then
+ * copy the final vlan_tci out and restore the intermediate VLAN state. */
+ if (xin->flow.vlan_tci != orig_tci && tci_ptr == &xin->vlan_tci) {
+ xin->vlan_tci = xin->flow.vlan_tci;
+ xin->flow.vlan_tci = orig_tci;
+ }
+}
+
+static void
do_xlate_actions(const struct ofpact *ofpacts, size_t ofpacts_len,
struct xlate_ctx *ctx)
{
struct flow_wildcards *wc = &ctx->xout->wc;
struct flow *flow = &ctx->xin->flow;
+ ovs_be16 *vlan_tci;
const struct ofpact *a;
+
+ /* VLAN actions are stored in '*vlan_tci'. This variable initially
+ * points to 'xin->flow->vlan_tci', so that VLAN actions are applied
+ * before any MPLS actions. When an MPLS action is translated,
+ * 'vlan_tci' is updated to point to 'xin->vlan_tci'. This causes later
+ * VLAN actions to be applied after MPLS actions. For each iteration
+ * of the loop 'xin->vlan_tci' is updated to reflect the final VLAN
+ * state of the flow. */
+ vlan_tci = &ctx->xin->flow.vlan_tci;
+
OFPACT_FOR_EACH (a, ofpacts, ofpacts_len) {
struct ofpact_controller *controller;
const struct ofpact_metadata *metadata;
@@ -2241,6 +2273,9 @@ do_xlate_actions(const struct ofpact *ofpacts, size_t ofpacts_len,
break;
}
+ /* Update the final vlan state to match the current state. */
+ ctx->xin->vlan_tci = *vlan_tci;
+
switch (a->type) {
case OFPACT_OUTPUT:
xlate_output_action(ctx, ofpact_get_OUTPUT(a)->port,
@@ -2264,28 +2299,28 @@ do_xlate_actions(const struct ofpact *ofpacts, size_t ofpacts_len,
case OFPACT_SET_VLAN_VID:
wc->masks.vlan_tci |= htons(VLAN_VID_MASK | VLAN_CFI);
- flow->vlan_tci &= ~htons(VLAN_VID_MASK);
- flow->vlan_tci |= (htons(ofpact_get_SET_VLAN_VID(a)->vlan_vid)
- | htons(VLAN_CFI));
+ *vlan_tci &= ~htons(VLAN_VID_MASK);
+ *vlan_tci |= (htons(ofpact_get_SET_VLAN_VID(a)->vlan_vid)
+ | htons(VLAN_CFI));
break;
case OFPACT_SET_VLAN_PCP:
- wc->masks.vlan_tci |= htons(VLAN_PCP_MASK | VLAN_CFI);
- flow->vlan_tci &= ~htons(VLAN_PCP_MASK);
- flow->vlan_tci |=
+ wc->masks.vlan_tci |= htons(VLAN_VID_MASK | VLAN_CFI);
+ *vlan_tci &= ~htons(VLAN_PCP_MASK);
+ *vlan_tci |=
htons((ofpact_get_SET_VLAN_PCP(a)->vlan_pcp << VLAN_PCP_SHIFT)
| VLAN_CFI);
break;
case OFPACT_STRIP_VLAN:
memset(&wc->masks.vlan_tci, 0xff, sizeof wc->masks.vlan_tci);
- flow->vlan_tci = htons(0);
+ *vlan_tci = htons(0);
break;
case OFPACT_PUSH_VLAN:
/* XXX 802.1AD(QinQ) */
memset(&wc->masks.vlan_tci, 0xff, sizeof wc->masks.vlan_tci);
- flow->vlan_tci = htons(VLAN_CFI);
+ *vlan_tci = htons(VLAN_CFI);
break;
case OFPACT_SET_ETH_SRC:
@@ -2353,29 +2388,54 @@ do_xlate_actions(const struct ofpact *ofpacts, size_t ofpacts_len,
flow->skb_priority = ctx->orig_skb_priority;
break;
- case OFPACT_REG_MOVE:
+ case OFPACT_REG_MOVE: {
+ ovs_be16 orig_tci = flow->vlan_tci;
nxm_execute_reg_move(ofpact_get_REG_MOVE(a), flow, wc);
+ vlan_tci_restore(ctx->xin, vlan_tci, orig_tci);
break;
+ }
- case OFPACT_REG_LOAD:
+ case OFPACT_REG_LOAD: {
+ ovs_be16 orig_tci = flow->vlan_tci;
nxm_execute_reg_load(ofpact_get_REG_LOAD(a), flow);
+ vlan_tci_restore(ctx->xin, vlan_tci, orig_tci);
break;
+ }
- case OFPACT_STACK_PUSH:
+ case OFPACT_STACK_PUSH: {
+ ovs_be16 orig_tci = flow->vlan_tci;
+ flow->vlan_tci = *vlan_tci;
nxm_execute_stack_push(ofpact_get_STACK_PUSH(a), flow, wc,
&ctx->stack);
+ flow->vlan_tci = orig_tci;
break;
+ }
- case OFPACT_STACK_POP:
+ case OFPACT_STACK_POP: {
+ ovs_be16 orig_tci = flow->vlan_tci;
nxm_execute_stack_pop(ofpact_get_STACK_POP(a), flow, wc,
&ctx->stack);
+ vlan_tci_restore(ctx->xin, vlan_tci, orig_tci);
break;
+ }
case OFPACT_PUSH_MPLS:
if (compose_mpls_push_action(ctx,
ofpact_get_PUSH_MPLS(a)->ethertype)) {
return;
}
+
+ /* Save and pop any existing VLAN tags. They will be pushed
+ * back onto the packet after pushing the MPLS LSE. The overall
+ * effect is to push the MPLS LSE after any VLAN tags that may
+ * be present. This is the behaviour described for OpenFlow 1.1
+ * and 1.2. This code needs to be enhanced to make this
+ * conditional to also and support pushing the MPLS LSE before
+ * any VLAN tags that may be present, the behaviour described
+ * for OpenFlow 1.3. */
+ ctx->xin->vlan_tci = *vlan_tci;
+ flow->vlan_tci = htons(0);
+ vlan_tci = &ctx->xin->vlan_tci;
break;
case OFPACT_POP_MPLS:
@@ -2477,6 +2537,7 @@ xlate_in_init(struct xlate_in *xin, struct ofproto_dpif *ofproto,
{
xin->ofproto = ofproto;
xin->flow = *flow;
+ xin->vlan_tci = flow->vlan_tci;
xin->packet = packet;
xin->may_learn = packet != NULL;
xin->rule = rule;
diff --git a/ofproto/ofproto-dpif-xlate.h b/ofproto/ofproto-dpif-xlate.h
index 6403f50..54fd36d 100644
--- a/ofproto/ofproto-dpif-xlate.h
+++ b/ofproto/ofproto-dpif-xlate.h
@@ -60,6 +60,11 @@ struct xlate_in {
* this flow when actions change header fields. */
struct flow flow;
+ /* If MPLS and VLAN actions were both present in the translation, and VLAN
+ * actions should occur after the MPLS actions, then this field is used
+ * to store the final vlan_tci state. */
+ ovs_be16 vlan_tci;
+
/* The packet corresponding to 'flow', or a null pointer if we are
* revalidating without a packet to refer to. */
const struct ofpbuf *packet;
diff --git a/tests/ofproto-dpif.at b/tests/ofproto-dpif.at
index 652304e..c07c64e 100644
--- a/tests/ofproto-dpif.at
+++ b/tests/ofproto-dpif.at
@@ -869,6 +869,215 @@ done
OVS_VSWITCHD_STOP
AT_CLEANUP
+AT_SETUP([ofproto-dpif - OF1.2 VLAN+MPLS handling])
+OVS_VSWITCHD_START([dnl
+ add-port br0 p1 -- set Interface p1 type=dummy
+])
+ON_EXIT([kill `cat ovs-ofctl.pid`])
+
+AT_CAPTURE_FILE([ofctl_monitor.log])
+AT_DATA([flows.txt], [dnl
+cookie=0xa dl_src=40:44:44:44:54:50 actions=push_mpls:0x8847,load:10->OXM_OF_MPLS_LABEL[[]],push_vlan:0x8100,mod_vlan_vid:99,mod_vlan_pcp:1,controller
+cookie=0xa dl_src=40:44:44:44:54:51 actions=push_mpls:0x8847,load:10->OXM_OF_MPLS_LABEL[[]],push_vlan:0x8100,mod_vlan_vid:99,mod_vlan_pcp:1,controller
+cookie=0xa dl_src=40:44:44:44:54:52 actions=push_mpls:0x8847,load:10->OXM_OF_MPLS_LABEL[[]],push_vlan:0x8100,load:99->OXM_OF_VLAN_VID[[]],mod_vlan_pcp:1,controller
+cookie=0xa dl_src=40:44:44:44:54:53 actions=push_mpls:0x8847,load:10->OXM_OF_MPLS_LABEL[[]],push_vlan:0x8100,load:99->OXM_OF_VLAN_VID[[]],mod_vlan_pcp:1,controller
+cookie=0xa dl_src=40:44:44:44:54:54 actions=push_vlan:0x8100,mod_vlan_vid:99,mod_vlan_pcp:1,push_mpls:0x8847,load:10->OXM_OF_MPLS_LABEL[[]],controller
+cookie=0xa dl_src=40:44:44:44:54:55 actions=push_vlan:0x8100,mod_vlan_vid:99,mod_vlan_pcp:1,push_mpls:0x8847,load:10->OXM_OF_MPLS_LABEL[[]],controller
+cookie=0xa dl_src=40:44:44:44:54:56 actions=push_vlan:0x8100,load:99->OXM_OF_VLAN_VID[[]],mod_vlan_pcp:1,push_mpls:0x8847,load:10->OXM_OF_MPLS_LABEL[[]],controller
+cookie=0xa dl_src=40:44:44:44:54:57 actions=push_vlan:0x8100,load:99->OXM_OF_VLAN_VID[[]],mod_vlan_pcp:1,push_mpls:0x8847,load:10->OXM_OF_MPLS_LABEL[[]],controller
+])
+AT_CHECK([ovs-ofctl --protocols=OpenFlow12 add-flows br0 flows.txt])
+
+dnl Modified MPLS controller action.
+dnl In this test, we push the MPLS tag before pushing a VLAN tag, so we see
+dnl both of these in the final flow
+AT_CHECK([ovs-ofctl monitor br0 65534 -P nxm --detach --pidfile 2> ofctl_monitor.log])
+
+for i in 1 2 3; do
+ ovs-appctl netdev-dummy/receive p1 'in_port(1),eth(src=40:44:44:44:54:50,dst=50:54:00:00:00:07),eth_type(0x0800),ipv4(src=192.168.0.1,dst=192.168.0.2,proto=6,tos=0,ttl=64,frag=no)'
+done
+OVS_WAIT_UNTIL([ovs-appctl -t ovs-ofctl exit])
+
+AT_CHECK([cat ofctl_monitor.log], [0], [dnl
+NXT_PACKET_IN (xid=0x0): cookie=0xa total_len=68 in_port=1 (via action) data_len=68 (unbuffered)
+mpls,metadata=0,in_port=0,dl_vlan=99,dl_vlan_pcp=1,dl_src=40:44:44:44:54:50,dl_dst=50:54:00:00:00:07,mpls_label=10,mpls_tc=0,mpls_ttl=64,mpls_bos=1
+dnl
+NXT_PACKET_IN (xid=0x0): cookie=0xa total_len=68 in_port=1 (via action) data_len=68 (unbuffered)
+mpls,metadata=0,in_port=0,dl_vlan=99,dl_vlan_pcp=1,dl_src=40:44:44:44:54:50,dl_dst=50:54:00:00:00:07,mpls_label=10,mpls_tc=0,mpls_ttl=64,mpls_bos=1
+dnl
+NXT_PACKET_IN (xid=0x0): cookie=0xa total_len=68 in_port=1 (via action) data_len=68 (unbuffered)
+mpls,metadata=0,in_port=0,dl_vlan=99,dl_vlan_pcp=1,dl_src=40:44:44:44:54:50,dl_dst=50:54:00:00:00:07,mpls_label=10,mpls_tc=0,mpls_ttl=64,mpls_bos=1
+])
+
+dnl Modified MPLS controller action.
+dnl In this test, the input packet in vlan-tagged, which should be stripped
+dnl before we push the MPLS and VLAN tags.
+AT_CHECK([ovs-ofctl monitor br0 65534 -P nxm --detach --pidfile 2> ofctl_monitor.log])
+
+for i in 1 2 3; do
+ ovs-appctl netdev-dummy/receive p1 'in_port(1),eth(src=40:44:44:44:54:51,dst=50:54:00:00:00:07),eth_type(0x8100),vlan(vid=88,pcp=7),encap(eth_type(0x0800),ipv4(src=192.168.0.1,dst=192.168.0.2,proto=6,tos=0,ttl=64,frag=no))'
+done
+OVS_WAIT_UNTIL([test `wc -l < ofctl_monitor.log` -ge 6])
+ovs-appctl -t ovs-ofctl exit
+
+AT_CHECK([cat ofctl_monitor.log], [0], [dnl
+NXT_PACKET_IN (xid=0x0): cookie=0xa total_len=64 in_port=1 (via action) data_len=64 (unbuffered)
+mpls,metadata=0,in_port=0,dl_vlan=99,dl_vlan_pcp=1,dl_src=40:44:44:44:54:51,dl_dst=50:54:00:00:00:07,mpls_label=10,mpls_tc=0,mpls_ttl=64,mpls_bos=1
+dnl
+NXT_PACKET_IN (xid=0x0): cookie=0xa total_len=64 in_port=1 (via action) data_len=64 (unbuffered)
+mpls,metadata=0,in_port=0,dl_vlan=99,dl_vlan_pcp=1,dl_src=40:44:44:44:54:51,dl_dst=50:54:00:00:00:07,mpls_label=10,mpls_tc=0,mpls_ttl=64,mpls_bos=1
+dnl
+NXT_PACKET_IN (xid=0x0): cookie=0xa total_len=64 in_port=1 (via action) data_len=64 (unbuffered)
+mpls,metadata=0,in_port=0,dl_vlan=99,dl_vlan_pcp=1,dl_src=40:44:44:44:54:51,dl_dst=50:54:00:00:00:07,mpls_label=10,mpls_tc=0,mpls_ttl=64,mpls_bos=1
+])
+
+dnl Modified MPLS controller action.
+dnl In this test, we push the MPLS tag before pushing a VLAN tag, so we see
+dnl both of these in the final flow
+AT_CHECK([ovs-ofctl monitor br0 65534 -P nxm --detach --pidfile 2> ofctl_monitor.log])
+
+for i in 1 2 3; do
+ ovs-appctl netdev-dummy/receive p1 'in_port(1),eth(src=40:44:44:44:54:52,dst=52:54:00:00:00:07),eth_type(0x0800),ipv4(src=192.168.0.1,dst=192.168.0.2,proto=6,tos=0,ttl=64,frag=no)'
+done
+OVS_WAIT_UNTIL([ovs-appctl -t ovs-ofctl exit])
+
+AT_CHECK([cat ofctl_monitor.log], [0], [dnl
+NXT_PACKET_IN (xid=0x0): cookie=0xa total_len=68 in_port=1 (via action) data_len=68 (unbuffered)
+mpls,metadata=0,in_port=0,dl_vlan=99,dl_vlan_pcp=1,dl_src=40:44:44:44:54:52,dl_dst=52:54:00:00:00:07,mpls_label=10,mpls_tc=0,mpls_ttl=64,mpls_bos=1
+dnl
+NXT_PACKET_IN (xid=0x0): cookie=0xa total_len=68 in_port=1 (via action) data_len=68 (unbuffered)
+mpls,metadata=0,in_port=0,dl_vlan=99,dl_vlan_pcp=1,dl_src=40:44:44:44:54:52,dl_dst=52:54:00:00:00:07,mpls_label=10,mpls_tc=0,mpls_ttl=64,mpls_bos=1
+dnl
+NXT_PACKET_IN (xid=0x0): cookie=0xa total_len=68 in_port=1 (via action) data_len=68 (unbuffered)
+mpls,metadata=0,in_port=0,dl_vlan=99,dl_vlan_pcp=1,dl_src=40:44:44:44:54:52,dl_dst=52:54:00:00:00:07,mpls_label=10,mpls_tc=0,mpls_ttl=64,mpls_bos=1
+])
+
+dnl Modified MPLS controller action.
+dnl In this test, the input packet in vlan-tagged, which should be stripped
+dnl before we push the MPLS and VLAN tags.
+AT_CHECK([ovs-ofctl monitor br0 65534 -P nxm --detach --pidfile 2> ofctl_monitor.log])
+
+for i in 1 2 3; do
+ ovs-appctl netdev-dummy/receive p1 'in_port(1),eth(src=40:44:44:44:54:53,dst=50:54:00:00:00:07),eth_type(0x8100),vlan(vid=88,pcp=7),encap(eth_type(0x0800),ipv4(src=192.168.0.1,dst=192.168.0.2,proto=6,tos=0,ttl=64,frag=no))'
+done
+OVS_WAIT_UNTIL([test `wc -l < ofctl_monitor.log` -ge 6])
+ovs-appctl -t ovs-ofctl exit
+
+AT_CHECK([cat ofctl_monitor.log], [0], [dnl
+NXT_PACKET_IN (xid=0x0): cookie=0xa total_len=64 in_port=1 (via action) data_len=64 (unbuffered)
+mpls,metadata=0,in_port=0,dl_vlan=99,dl_vlan_pcp=1,dl_src=40:44:44:44:54:53,dl_dst=50:54:00:00:00:07,mpls_label=10,mpls_tc=0,mpls_ttl=64,mpls_bos=1
+dnl
+NXT_PACKET_IN (xid=0x0): cookie=0xa total_len=64 in_port=1 (via action) data_len=64 (unbuffered)
+mpls,metadata=0,in_port=0,dl_vlan=99,dl_vlan_pcp=1,dl_src=40:44:44:44:54:53,dl_dst=50:54:00:00:00:07,mpls_label=10,mpls_tc=0,mpls_ttl=64,mpls_bos=1
+dnl
+NXT_PACKET_IN (xid=0x0): cookie=0xa total_len=64 in_port=1 (via action) data_len=64 (unbuffered)
+mpls,metadata=0,in_port=0,dl_vlan=99,dl_vlan_pcp=1,dl_src=40:44:44:44:54:53,dl_dst=50:54:00:00:00:07,mpls_label=10,mpls_tc=0,mpls_ttl=64,mpls_bos=1
+])
+
+dnl Modified MPLS controller action.
+dnl In this test, we push the VLAN tag before pushing a MPLS tag, but these
+dnl actions are reordered, so we see both of these in the final flow.
+AT_CHECK([ovs-ofctl monitor br0 65534 -P nxm --detach --pidfile 2> ofctl_monitor.log])
+
+for i in 1 2 3; do
+ ovs-appctl netdev-dummy/receive p1 'in_port(1),eth(src=40:44:44:44:54:54,dst=50:54:00:00:00:07),eth_type(0x0800),ipv4(src=192.168.0.1,dst=192.168.0.2,proto=6,tos=0,ttl=64,frag=no)'
+done
+OVS_WAIT_UNTIL([test `wc -l < ofctl_monitor.log` -ge 6])
+ovs-appctl -t ovs-ofctl exit
+
+AT_CHECK([cat ofctl_monitor.log], [0], [dnl
+NXT_PACKET_IN (xid=0x0): cookie=0xa total_len=68 in_port=1 (via action) data_len=68 (unbuffered)
+mpls,metadata=0,in_port=0,dl_vlan=99,dl_vlan_pcp=1,dl_src=40:44:44:44:54:54,dl_dst=50:54:00:00:00:07,mpls_label=10,mpls_tc=0,mpls_ttl=64,mpls_bos=1
+dnl
+NXT_PACKET_IN (xid=0x0): cookie=0xa total_len=68 in_port=1 (via action) data_len=68 (unbuffered)
+mpls,metadata=0,in_port=0,dl_vlan=99,dl_vlan_pcp=1,dl_src=40:44:44:44:54:54,dl_dst=50:54:00:00:00:07,mpls_label=10,mpls_tc=0,mpls_ttl=64,mpls_bos=1
+dnl
+NXT_PACKET_IN (xid=0x0): cookie=0xa total_len=68 in_port=1 (via action) data_len=68 (unbuffered)
+mpls,metadata=0,in_port=0,dl_vlan=99,dl_vlan_pcp=1,dl_src=40:44:44:44:54:54,dl_dst=50:54:00:00:00:07,mpls_label=10,mpls_tc=0,mpls_ttl=64,mpls_bos=1
+])
+
+dnl Modified MPLS controller action.
+dnl In this test, the input packet in vlan-tagged, which should be stripped
+dnl before we push the MPLS and VLAN tags.
+AT_CHECK([ovs-ofctl monitor br0 65534 -P nxm --detach --pidfile 2> ofctl_monitor.log])
+
+for i in 1 2 3; do
+ ovs-appctl netdev-dummy/receive p1 'in_port(1),eth(src=40:44:44:44:54:55,dst=50:54:00:00:00:07),eth_type(0x8100),vlan(vid=88,pcp=7),encap(eth_type(0x0800),ipv4(src=192.168.0.1,dst=192.168.0.2,proto=6,tos=0,ttl=64,frag=no))'
+done
+OVS_WAIT_UNTIL([test `wc -l < ofctl_monitor.log` -ge 6])
+ovs-appctl -t ovs-ofctl exit
+
+AT_CHECK([cat ofctl_monitor.log], [0], [dnl
+NXT_PACKET_IN (xid=0x0): cookie=0xa total_len=64 in_port=1 (via action) data_len=64 (unbuffered)
+mpls,metadata=0,in_port=0,dl_vlan=99,dl_vlan_pcp=1,dl_src=40:44:44:44:54:55,dl_dst=50:54:00:00:00:07,mpls_label=10,mpls_tc=0,mpls_ttl=64,mpls_bos=1
+dnl
+NXT_PACKET_IN (xid=0x0): cookie=0xa total_len=64 in_port=1 (via action) data_len=64 (unbuffered)
+mpls,metadata=0,in_port=0,dl_vlan=99,dl_vlan_pcp=1,dl_src=40:44:44:44:54:55,dl_dst=50:54:00:00:00:07,mpls_label=10,mpls_tc=0,mpls_ttl=64,mpls_bos=1
+dnl
+NXT_PACKET_IN (xid=0x0): cookie=0xa total_len=64 in_port=1 (via action) data_len=64 (unbuffered)
+mpls,metadata=0,in_port=0,dl_vlan=99,dl_vlan_pcp=1,dl_src=40:44:44:44:54:55,dl_dst=50:54:00:00:00:07,mpls_label=10,mpls_tc=0,mpls_ttl=64,mpls_bos=1
+])
+
+dnl Modified MPLS controller action.
+dnl In this test, we push the VLAN tag before pushing a MPLS tag, but these
+dnl actions are reordered, so we see both of these in the final flow.
+AT_CHECK([ovs-ofctl monitor br0 65534 -P nxm --detach --pidfile 2> ofctl_monitor.log])
+
+for i in 1 2 3; do
+ ovs-appctl netdev-dummy/receive p1 'in_port(1),eth(src=40:44:44:44:54:56,dst=50:54:00:00:00:07),eth_type(0x0800),ipv4(src=192.168.0.1,dst=192.168.0.2,proto=6,tos=0,ttl=64,frag=no)'
+done
+OVS_WAIT_UNTIL([test `wc -l < ofctl_monitor.log` -ge 6])
+ovs-appctl -t ovs-ofctl exit
+
+AT_CHECK([cat ofctl_monitor.log], [0], [dnl
+NXT_PACKET_IN (xid=0x0): cookie=0xa total_len=68 in_port=1 (via action) data_len=68 (unbuffered)
+mpls,metadata=0,in_port=0,dl_vlan=99,dl_vlan_pcp=1,dl_src=40:44:44:44:54:56,dl_dst=50:54:00:00:00:07,mpls_label=10,mpls_tc=0,mpls_ttl=64,mpls_bos=1
+dnl
+NXT_PACKET_IN (xid=0x0): cookie=0xa total_len=68 in_port=1 (via action) data_len=68 (unbuffered)
+mpls,metadata=0,in_port=0,dl_vlan=99,dl_vlan_pcp=1,dl_src=40:44:44:44:54:56,dl_dst=50:54:00:00:00:07,mpls_label=10,mpls_tc=0,mpls_ttl=64,mpls_bos=1
+dnl
+NXT_PACKET_IN (xid=0x0): cookie=0xa total_len=68 in_port=1 (via action) data_len=68 (unbuffered)
+mpls,metadata=0,in_port=0,dl_vlan=99,dl_vlan_pcp=1,dl_src=40:44:44:44:54:56,dl_dst=50:54:00:00:00:07,mpls_label=10,mpls_tc=0,mpls_ttl=64,mpls_bos=1
+])
+
+dnl Modified MPLS controller action.
+dnl In this test, the input packet in vlan-tagged, which should be stripped
+dnl before we push the MPLS and VLAN tags.
+AT_CHECK([ovs-ofctl monitor br0 65534 -P nxm --detach --pidfile 2> ofctl_monitor.log])
+
+for i in 1 2 3; do
+ ovs-appctl netdev-dummy/receive p1 'in_port(1),eth(src=40:44:44:44:54:57,dst=50:54:00:00:00:07),eth_type(0x8100),vlan(vid=88,pcp=7),encap(eth_type(0x0800),ipv4(src=192.168.0.1,dst=192.168.0.2,proto=6,tos=0,ttl=64,frag=no))'
+done
+OVS_WAIT_UNTIL([test `wc -l < ofctl_monitor.log` -ge 6])
+ovs-appctl -t ovs-ofctl exit
+
+AT_CHECK([cat ofctl_monitor.log], [0], [dnl
+NXT_PACKET_IN (xid=0x0): cookie=0xa total_len=64 in_port=1 (via action) data_len=64 (unbuffered)
+mpls,metadata=0,in_port=0,dl_vlan=99,dl_vlan_pcp=1,dl_src=40:44:44:44:54:57,dl_dst=50:54:00:00:00:07,mpls_label=10,mpls_tc=0,mpls_ttl=64,mpls_bos=1
+dnl
+NXT_PACKET_IN (xid=0x0): cookie=0xa total_len=64 in_port=1 (via action) data_len=64 (unbuffered)
+mpls,metadata=0,in_port=0,dl_vlan=99,dl_vlan_pcp=1,dl_src=40:44:44:44:54:57,dl_dst=50:54:00:00:00:07,mpls_label=10,mpls_tc=0,mpls_ttl=64,mpls_bos=1
+dnl
+NXT_PACKET_IN (xid=0x0): cookie=0xa total_len=64 in_port=1 (via action) data_len=64 (unbuffered)
+mpls,metadata=0,in_port=0,dl_vlan=99,dl_vlan_pcp=1,dl_src=40:44:44:44:54:57,dl_dst=50:54:00:00:00:07,mpls_label=10,mpls_tc=0,mpls_ttl=64,mpls_bos=1
+])
+
+AT_CHECK([ovs-appctl time/warp 5000], [0], [ignore])
+AT_CHECK([ovs-ofctl dump-flows br0 | ofctl_strip | sort], [0], [dnl
+ cookie=0xa, n_packets=3, n_bytes=180, dl_src=40:44:44:44:54:50 actions=push_mpls:0x8847,load:0xa->OXM_OF_MPLS_LABEL[[]],mod_vlan_vid:99,mod_vlan_pcp:1,CONTROLLER:65535
+ cookie=0xa, n_packets=3, n_bytes=180, dl_src=40:44:44:44:54:51 actions=push_mpls:0x8847,load:0xa->OXM_OF_MPLS_LABEL[[]],mod_vlan_vid:99,mod_vlan_pcp:1,CONTROLLER:65535
+ cookie=0xa, n_packets=3, n_bytes=180, dl_src=40:44:44:44:54:52 actions=push_mpls:0x8847,load:0xa->OXM_OF_MPLS_LABEL[[]],load:0x63->OXM_OF_VLAN_VID[[]],mod_vlan_pcp:1,CONTROLLER:65535
+ cookie=0xa, n_packets=3, n_bytes=180, dl_src=40:44:44:44:54:53 actions=push_mpls:0x8847,load:0xa->OXM_OF_MPLS_LABEL[[]],load:0x63->OXM_OF_VLAN_VID[[]],mod_vlan_pcp:1,CONTROLLER:65535
+ cookie=0xa, n_packets=3, n_bytes=180, dl_src=40:44:44:44:54:54 actions=mod_vlan_vid:99,mod_vlan_pcp:1,push_mpls:0x8847,load:0xa->OXM_OF_MPLS_LABEL[[]],CONTROLLER:65535
+ cookie=0xa, n_packets=3, n_bytes=180, dl_src=40:44:44:44:54:55 actions=mod_vlan_vid:99,mod_vlan_pcp:1,push_mpls:0x8847,load:0xa->OXM_OF_MPLS_LABEL[[]],CONTROLLER:65535
+ cookie=0xa, n_packets=3, n_bytes=180, dl_src=40:44:44:44:54:56 actions=load:0x63->OXM_OF_VLAN_VID[[]],mod_vlan_pcp:1,push_mpls:0x8847,load:0xa->OXM_OF_MPLS_LABEL[[]],CONTROLLER:65535
+ cookie=0xa, n_packets=3, n_bytes=180, dl_src=40:44:44:44:54:57 actions=load:0x63->OXM_OF_VLAN_VID[[]],mod_vlan_pcp:1,push_mpls:0x8847,load:0xa->OXM_OF_MPLS_LABEL[[]],CONTROLLER:65535
+NXST_FLOW reply:
+])
+
+OVS_VSWITCHD_STOP
+AT_CLEANUP
+
AT_SETUP([ofproto-dpif - fragment handling])
OVS_VSWITCHD_START
ADD_OF_PORTS([br0], [1], [2], [3], [4], [5], [6], [90])
--
1.8.4
^ permalink raw reply related
* [PATCH v2.41 3/5] lib: Support pushing of MPLS LSE before or after VLAN tag
From: Simon Horman @ 2013-10-01 6:47 UTC (permalink / raw)
To: dev, netdev, Jesse Gross, Ben Pfaff
Cc: Pravin B Shelar, Ravi K, Isaku Yamahata, Joe Stringer
In-Reply-To: <1380610064-14856-1-git-send-email-horms@verge.net.au>
From: Joe Stringer <joe@wand.net.nz>
This patch modifies the push_mpls behaviour to allow
pushing of an MPLS LSE either before any VLAN tag that may be present.
Pushing the MPLS LSE before any VLAN tag that is present is the
behaviour specified in OpenFlow 1.3.
Pushing the MPLS LSE after the any VLAN tag that is present is the
behaviour specified in OpenFlow 1.1 and 1.2. This is the only behaviour
that was supported prior to this patch.
When an push_mpls action has been inserted using OpenFlow 1.2 or earlier
the behaviour of pushing the MPLS LSE before any VLAN tag that may be
present is implemented by by inserting VLAN actions around the MPLS push
action during odp translation; Pop VLAN tags before committing MPLS
actions, and push the expected VLAN tag afterwards.
The trigger condition for the two different behaviours is the value of the
mpls_before_vlan field of struct ofpact_push_mpls. This field is set when
parsing OpenFlow actions.
Signed-off-by: Joe Stringer <joe@wand.net.nz>
Signed-off-by: Simon Horman <horms@verge.net.au>
---
v2.41 [Simon Horman]
* Use mpls_before_vlan field of struct ofpact_reg_load.
* Reword changelog to describe the difference in behaviour between
different Open Flow versions.
v2.40 [Simon Horman]
* Trivial rebase for removal of set_ethertype()
v2.36 - v2.39
* No change
v2.35 [Joe Stringer]
* First post
---
lib/flow.c | 2 +-
lib/packets.c | 10 +-
lib/packets.h | 2 +-
ofproto/ofproto-dpif-xlate.c | 27 ++---
tests/ofproto-dpif.at | 237 +++++++++++++++++++++++++++++++++++++++++++
5 files changed, 259 insertions(+), 19 deletions(-)
diff --git a/lib/flow.c b/lib/flow.c
index 0678c6f..6242ef9 100644
--- a/lib/flow.c
+++ b/lib/flow.c
@@ -1061,7 +1061,7 @@ flow_compose(struct ofpbuf *b, const struct flow *flow)
}
if (eth_type_mpls(flow->dl_type)) {
- b->l2_5 = b->l3;
+ b->l2_5 = (char*)b->l2 + ETH_HEADER_LEN;
push_mpls(b, flow->dl_type, flow->mpls_lse);
}
}
diff --git a/lib/packets.c b/lib/packets.c
index 922c5db..f8a58b6 100644
--- a/lib/packets.c
+++ b/lib/packets.c
@@ -220,11 +220,11 @@ eth_pop_vlan(struct ofpbuf *packet)
/* Set ethertype of the packet. */
void
-set_ethertype(struct ofpbuf *packet, ovs_be16 eth_type)
+set_ethertype(struct ofpbuf *packet, ovs_be16 eth_type, bool inner)
{
struct eth_header *eh = packet->data;
- if (eh->eth_type == htons(ETH_TYPE_VLAN)) {
+ if (inner && eh->eth_type == htons(ETH_TYPE_VLAN)) {
ovs_be16 *p;
p = ALIGNED_CAST(ovs_be16 *,
(char *)(packet->l2_5 ? packet->l2_5 : packet->l3) - 2);
@@ -332,8 +332,8 @@ push_mpls(struct ofpbuf *packet, ovs_be16 ethtype, ovs_be32 lse)
if (!is_mpls(packet)) {
/* Set ethtype and MPLS label stack entry. */
- set_ethertype(packet, ethtype);
- packet->l2_5 = packet->l3;
+ set_ethertype(packet, ethtype, false);
+ packet->l2_5 = (char*)packet->l2 + ETH_HEADER_LEN;
}
/* Push new MPLS shim header onto packet. */
@@ -354,7 +354,7 @@ pop_mpls(struct ofpbuf *packet, ovs_be16 ethtype)
size_t len;
mh = packet->l2_5;
len = (char*)packet->l2_5 - (char*)packet->l2;
- set_ethertype(packet, ethtype);
+ set_ethertype(packet, ethtype, true);
if (mh->mpls_lse & htonl(MPLS_BOS_MASK)) {
packet->l2_5 = NULL;
} else {
diff --git a/lib/packets.h b/lib/packets.h
index 7388152..38fec70 100644
--- a/lib/packets.h
+++ b/lib/packets.h
@@ -143,7 +143,7 @@ void compose_rarp(struct ofpbuf *, const uint8_t eth_src[ETH_ADDR_LEN]);
void eth_push_vlan(struct ofpbuf *, ovs_be16 tci);
void eth_pop_vlan(struct ofpbuf *);
-void set_ethertype(struct ofpbuf *packet, ovs_be16 eth_type);
+void set_ethertype(struct ofpbuf *packet, ovs_be16 eth_type, bool inner);
const char *eth_from_hex(const char *hex, struct ofpbuf **packetp);
void eth_format_masked(const uint8_t eth[ETH_ADDR_LEN],
diff --git a/ofproto/ofproto-dpif-xlate.c b/ofproto/ofproto-dpif-xlate.c
index 6757933..2afd760 100644
--- a/ofproto/ofproto-dpif-xlate.c
+++ b/ofproto/ofproto-dpif-xlate.c
@@ -2419,24 +2419,27 @@ do_xlate_actions(const struct ofpact *ofpacts, size_t ofpacts_len,
break;
}
- case OFPACT_PUSH_MPLS:
- if (compose_mpls_push_action(ctx,
- ofpact_get_PUSH_MPLS(a)->ethertype)) {
+ case OFPACT_PUSH_MPLS: {
+ struct ofpact_push_mpls *oam = ofpact_get_PUSH_MPLS(a);
+
+ if (compose_mpls_push_action(ctx, oam->ethertype)) {
return;
}
- /* Save and pop any existing VLAN tags. They will be pushed
- * back onto the packet after pushing the MPLS LSE. The overall
- * effect is to push the MPLS LSE after any VLAN tags that may
- * be present. This is the behaviour described for OpenFlow 1.1
- * and 1.2. This code needs to be enhanced to make this
- * conditional to also and support pushing the MPLS LSE before
- * any VLAN tags that may be present, the behaviour described
- * for OpenFlow 1.3. */
+ /* Save and pop any existing VLAN tags if the MPLS LSE should
+ * be pushed after VLAN tags. The overall effect is to push
+ * the MPLS LSE after any VLAN tags that may be present. This
+ * is the behaviour described for OpenFlow 1.1 and 1.2.
+ * Do not save and therefore pop the VLAN tags if the MPLS LSE
+ * should be pushed before any VLAN tags that are present.
+ * This is the behaviour described for OpenFlow 1.3. */
ctx->xin->vlan_tci = *vlan_tci;
- flow->vlan_tci = htons(0);
+ if (!oam->mpls_before_vlan) {
+ flow->vlan_tci = htons(0);
+ }
vlan_tci = &ctx->xin->vlan_tci;
break;
+ }
case OFPACT_POP_MPLS:
if (compose_mpls_pop_action(ctx,
diff --git a/tests/ofproto-dpif.at b/tests/ofproto-dpif.at
index c07c64e..17b2b30 100644
--- a/tests/ofproto-dpif.at
+++ b/tests/ofproto-dpif.at
@@ -1078,6 +1078,243 @@ NXST_FLOW reply:
OVS_VSWITCHD_STOP
AT_CLEANUP
+AT_SETUP([ofproto-dpif - OF1.3+ VLAN+MPLS handling])
+OVS_VSWITCHD_START([dnl
+ add-port br0 p1 -- set Interface p1 type=dummy
+])
+ON_EXIT([kill `cat ovs-ofctl.pid`])
+
+AT_CAPTURE_FILE([ofctl_monitor.log])
+AT_DATA([flows.txt], [dnl
+cookie=0xa dl_src=40:44:44:44:55:44 actions=push_mpls:0x8847,load:10->OXM_OF_MPLS_LABEL[[]],load:3->OXM_OF_MPLS_TC[[]],controller
+cookie=0xa dl_src=40:44:44:44:55:45 actions=push_vlan:0x8100,mod_vlan_vid:99,push_mpls:0x8847,load:10->OXM_OF_MPLS_LABEL[[]],load:3->OXM_OF_MPLS_TC[[]],controller
+cookie=0xa dl_src=40:44:44:44:55:46 actions=push_vlan:0x8100,mod_vlan_vid:99,push_mpls:0x8847,load:10->OXM_OF_MPLS_LABEL[[]],load:3->OXM_OF_MPLS_TC[[]],controller
+cookie=0xa dl_src=40:44:44:44:55:47 actions=push_vlan:0x8100,load:99->OXM_OF_VLAN_VID[[]],push_mpls:0x8847,load:10->OXM_OF_MPLS_LABEL[[]],load:3->OXM_OF_MPLS_TC[[]],controller
+cookie=0xa dl_src=40:44:44:44:55:48 actions=push_vlan:0x8100,load:99->OXM_OF_VLAN_VID[[]],push_mpls:0x8847,load:10->OXM_OF_MPLS_LABEL[[]],load:3->OXM_OF_MPLS_TC[[]],controller
+cookie=0xa dl_src=40:44:44:44:55:49 actions=push_mpls:0x8847,load:10->OXM_OF_MPLS_LABEL[[]],load:3->OXM_OF_MPLS_TC[[]],push_vlan:0x8100,mod_vlan_vid:99,controller
+cookie=0xa dl_src=40:44:44:44:55:50 actions=push_mpls:0x8847,load:10->OXM_OF_MPLS_LABEL[[]],load:3->OXM_OF_MPLS_TC[[]],push_vlan:0x8100,mod_vlan_vid:99,controller
+cookie=0xa dl_src=40:44:44:44:55:51 actions=push_mpls:0x8847,load:10->OXM_OF_MPLS_LABEL[[]],load:3->OXM_OF_MPLS_TC[[]],push_vlan:0x8100,load:99->OXM_OF_VLAN_VID[[]],mod_vlan_pcp:1,controller
+cookie=0xa dl_src=40:44:44:44:55:52 actions=push_mpls:0x8847,load:10->OXM_OF_MPLS_LABEL[[]],load:3->OXM_OF_MPLS_TC[[]],push_vlan:0x8100,load:99->OXM_OF_VLAN_VID[[]],mod_vlan_pcp:1,controller
+])
+AT_CHECK([ovs-ofctl --protocols=OpenFlow13 add-flows br0 flows.txt])
+
+dnl Modified MPLS controller action.
+dnl The input packet has a VLAN tag, but because we push an MPLS tag in
+dnl OF1.3 mode, we can no longer see it.
+AT_CHECK([ovs-ofctl monitor br0 65534 -P nxm --detach --pidfile 2> ofctl_monitor.log])
+
+for i in 1 2 3; do
+ ovs-appctl netdev-dummy/receive p1 'in_port(1),eth(src=40:44:44:44:55:44,dst=50:54:00:00:00:07),eth_type(0x8100),vlan(vid=88,pcp=7),encap(eth_type(0x0800),ipv4(src=192.168.0.1,dst=192.168.0.2,proto=6,tos=0,ttl=64,frag=no))'
+done
+OVS_WAIT_UNTIL([test `wc -l < ofctl_monitor.log` -ge 6])
+ovs-appctl -t ovs-ofctl exit
+
+AT_CHECK([cat ofctl_monitor.log], [0], [dnl
+NXT_PACKET_IN (xid=0x0): cookie=0xa total_len=64 in_port=1 (via action) data_len=64 (unbuffered)
+mpls,metadata=0,in_port=0,vlan_tci=0x0000,dl_src=40:44:44:44:55:44,dl_dst=50:54:00:00:00:07,mpls_label=10,mpls_tc=3,mpls_ttl=64,mpls_bos=1
+dnl
+NXT_PACKET_IN (xid=0x0): cookie=0xa total_len=64 in_port=1 (via action) data_len=64 (unbuffered)
+mpls,metadata=0,in_port=0,vlan_tci=0x0000,dl_src=40:44:44:44:55:44,dl_dst=50:54:00:00:00:07,mpls_label=10,mpls_tc=3,mpls_ttl=64,mpls_bos=1
+dnl
+NXT_PACKET_IN (xid=0x0): cookie=0xa total_len=64 in_port=1 (via action) data_len=64 (unbuffered)
+mpls,metadata=0,in_port=0,vlan_tci=0x0000,dl_src=40:44:44:44:55:44,dl_dst=50:54:00:00:00:07,mpls_label=10,mpls_tc=3,mpls_ttl=64,mpls_bos=1
+])
+
+dnl Modified MPLS controller action.
+dnl In this test, we push a VLAN tag, then an MPLS tag in OF1.3 mode, so we
+dnl can only see the MPLS tag in the result.
+AT_CHECK([ovs-ofctl monitor br0 65534 -P nxm --detach --pidfile 2> ofctl_monitor.log])
+
+for i in 1 2 3; do
+ ovs-appctl netdev-dummy/receive p1 'in_port(1),eth(src=40:44:44:44:55:45,dst=50:54:00:00:00:07),eth_type(0x0800),ipv4(src=192.168.0.1,dst=192.168.0.2,proto=6,tos=0,ttl=64,frag=no)'
+done
+OVS_WAIT_UNTIL([test `wc -l < ofctl_monitor.log` -ge 6])
+ovs-appctl -t ovs-ofctl exit
+
+AT_CHECK([cat ofctl_monitor.log], [0], [dnl
+NXT_PACKET_IN (xid=0x0): cookie=0xa total_len=68 in_port=1 (via action) data_len=68 (unbuffered)
+mpls,metadata=0,in_port=0,vlan_tci=0x0000,dl_src=40:44:44:44:55:45,dl_dst=50:54:00:00:00:07,mpls_label=10,mpls_tc=3,mpls_ttl=64,mpls_bos=1
+dnl
+NXT_PACKET_IN (xid=0x0): cookie=0xa total_len=68 in_port=1 (via action) data_len=68 (unbuffered)
+mpls,metadata=0,in_port=0,vlan_tci=0x0000,dl_src=40:44:44:44:55:45,dl_dst=50:54:00:00:00:07,mpls_label=10,mpls_tc=3,mpls_ttl=64,mpls_bos=1
+dnl
+NXT_PACKET_IN (xid=0x0): cookie=0xa total_len=68 in_port=1 (via action) data_len=68 (unbuffered)
+mpls,metadata=0,in_port=0,vlan_tci=0x0000,dl_src=40:44:44:44:55:45,dl_dst=50:54:00:00:00:07,mpls_label=10,mpls_tc=3,mpls_ttl=64,mpls_bos=1
+])
+
+dnl Modified MPLS controller action.
+dnl In this test, the input packet is vlan-tagged; we update this tag then
+dnl push an MPLS tag in OF1.3 mode. As such, we can only see the MPLS tag in
+dnl the result.
+AT_CHECK([ovs-ofctl monitor br0 65534 -P nxm --detach --pidfile 2> ofctl_monitor.log])
+
+for i in 1 2 3; do
+ ovs-appctl netdev-dummy/receive p1 'in_port(1),eth(src=40:44:44:44:55:46,dst=50:54:00:00:00:07),eth_type(0x8100),vlan(vid=88,pcp=7),encap(eth_type(0x0800),ipv4(src=192.168.0.1,dst=192.168.0.2,proto=6,tos=0,ttl=64,frag=no))'
+done
+OVS_WAIT_UNTIL([test `wc -l < ofctl_monitor.log` -ge 6])
+ovs-appctl -t ovs-ofctl exit
+
+AT_CHECK([cat ofctl_monitor.log], [0], [dnl
+NXT_PACKET_IN (xid=0x0): cookie=0xa total_len=64 in_port=1 (via action) data_len=64 (unbuffered)
+mpls,metadata=0,in_port=0,vlan_tci=0x0000,dl_src=40:44:44:44:55:46,dl_dst=50:54:00:00:00:07,mpls_label=10,mpls_tc=3,mpls_ttl=64,mpls_bos=1
+dnl
+NXT_PACKET_IN (xid=0x0): cookie=0xa total_len=64 in_port=1 (via action) data_len=64 (unbuffered)
+mpls,metadata=0,in_port=0,vlan_tci=0x0000,dl_src=40:44:44:44:55:46,dl_dst=50:54:00:00:00:07,mpls_label=10,mpls_tc=3,mpls_ttl=64,mpls_bos=1
+dnl
+NXT_PACKET_IN (xid=0x0): cookie=0xa total_len=64 in_port=1 (via action) data_len=64 (unbuffered)
+mpls,metadata=0,in_port=0,vlan_tci=0x0000,dl_src=40:44:44:44:55:46,dl_dst=50:54:00:00:00:07,mpls_label=10,mpls_tc=3,mpls_ttl=64,mpls_bos=1
+])
+
+dnl Modified MPLS controller action.
+dnl In this test, we push a VLAN tag, then an MPLS tag in OF1.3 mode, so we
+dnl can only see the MPLS tag in the result.
+AT_CHECK([ovs-ofctl monitor br0 65534 -P nxm --detach --pidfile 2> ofctl_monitor.log])
+
+for i in 1 2 3; do
+ ovs-appctl netdev-dummy/receive p1 'in_port(1),eth(src=40:44:44:44:55:47,dst=50:54:00:00:00:07),eth_type(0x0800),ipv4(src=192.168.0.1,dst=192.168.0.2,proto=6,tos=0,ttl=64,frag=no)'
+done
+OVS_WAIT_UNTIL([test `wc -l < ofctl_monitor.log` -ge 6])
+ovs-appctl -t ovs-ofctl exit
+
+AT_CHECK([cat ofctl_monitor.log], [0], [dnl
+NXT_PACKET_IN (xid=0x0): cookie=0xa total_len=68 in_port=1 (via action) data_len=68 (unbuffered)
+mpls,metadata=0,in_port=0,vlan_tci=0x0000,dl_src=40:44:44:44:55:47,dl_dst=50:54:00:00:00:07,mpls_label=10,mpls_tc=3,mpls_ttl=64,mpls_bos=1
+dnl
+NXT_PACKET_IN (xid=0x0): cookie=0xa total_len=68 in_port=1 (via action) data_len=68 (unbuffered)
+mpls,metadata=0,in_port=0,vlan_tci=0x0000,dl_src=40:44:44:44:55:47,dl_dst=50:54:00:00:00:07,mpls_label=10,mpls_tc=3,mpls_ttl=64,mpls_bos=1
+dnl
+NXT_PACKET_IN (xid=0x0): cookie=0xa total_len=68 in_port=1 (via action) data_len=68 (unbuffered)
+mpls,metadata=0,in_port=0,vlan_tci=0x0000,dl_src=40:44:44:44:55:47,dl_dst=50:54:00:00:00:07,mpls_label=10,mpls_tc=3,mpls_ttl=64,mpls_bos=1
+])
+
+dnl Modified MPLS controller action.
+dnl In this test, the input packet is vlan-tagged; we update this tag then
+dnl push an MPLS tag in OF1.3 mode. As such, we can only see the MPLS tag in
+dnl the result.
+AT_CHECK([ovs-ofctl monitor br0 65534 -P nxm --detach --pidfile 2> ofctl_monitor.log])
+
+for i in 1 2 3; do
+ ovs-appctl netdev-dummy/receive p1 'in_port(1),eth(src=40:44:44:44:55:48,dst=50:54:00:00:00:07),eth_type(0x8100),vlan(vid=88,pcp=7),encap(eth_type(0x0800),ipv4(src=192.168.0.1,dst=192.168.0.2,proto=6,tos=0,ttl=64,frag=no))'
+done
+OVS_WAIT_UNTIL([test `wc -l < ofctl_monitor.log` -ge 6])
+ovs-appctl -t ovs-ofctl exit
+
+AT_CHECK([cat ofctl_monitor.log], [0], [dnl
+NXT_PACKET_IN (xid=0x0): cookie=0xa total_len=64 in_port=1 (via action) data_len=64 (unbuffered)
+mpls,metadata=0,in_port=0,vlan_tci=0x0000,dl_src=40:44:44:44:55:48,dl_dst=50:54:00:00:00:07,mpls_label=10,mpls_tc=3,mpls_ttl=64,mpls_bos=1
+dnl
+NXT_PACKET_IN (xid=0x0): cookie=0xa total_len=64 in_port=1 (via action) data_len=64 (unbuffered)
+mpls,metadata=0,in_port=0,vlan_tci=0x0000,dl_src=40:44:44:44:55:48,dl_dst=50:54:00:00:00:07,mpls_label=10,mpls_tc=3,mpls_ttl=64,mpls_bos=1
+dnl
+NXT_PACKET_IN (xid=0x0): cookie=0xa total_len=64 in_port=1 (via action) data_len=64 (unbuffered)
+mpls,metadata=0,in_port=0,vlan_tci=0x0000,dl_src=40:44:44:44:55:48,dl_dst=50:54:00:00:00:07,mpls_label=10,mpls_tc=3,mpls_ttl=64,mpls_bos=1
+])
+
+dnl Modified MPLS controller action.
+dnl In this test, we push the MPLS tag before pushing a VLAN tag, so we see
+dnl both of these in the final flow.
+AT_CHECK([ovs-ofctl monitor br0 65534 -P nxm --detach --pidfile 2> ofctl_monitor.log])
+
+for i in 1 2 3; do
+ ovs-appctl netdev-dummy/receive p1 'in_port(1),eth(src=40:44:44:44:55:49,dst=50:54:00:00:00:07),eth_type(0x0800),ipv4(src=192.168.0.1,dst=192.168.0.2,proto=6,tos=0,ttl=64,frag=no)'
+done
+OVS_WAIT_UNTIL([test `wc -l < ofctl_monitor.log` -ge 6])
+ovs-appctl -t ovs-ofctl exit
+
+AT_CHECK([cat ofctl_monitor.log], [0], [dnl
+NXT_PACKET_IN (xid=0x0): cookie=0xa total_len=68 in_port=1 (via action) data_len=68 (unbuffered)
+mpls,metadata=0,in_port=0,dl_vlan=99,dl_vlan_pcp=0,dl_src=40:44:44:44:55:49,dl_dst=50:54:00:00:00:07,mpls_label=10,mpls_tc=3,mpls_ttl=64,mpls_bos=1
+dnl
+NXT_PACKET_IN (xid=0x0): cookie=0xa total_len=68 in_port=1 (via action) data_len=68 (unbuffered)
+mpls,metadata=0,in_port=0,dl_vlan=99,dl_vlan_pcp=0,dl_src=40:44:44:44:55:49,dl_dst=50:54:00:00:00:07,mpls_label=10,mpls_tc=3,mpls_ttl=64,mpls_bos=1
+dnl
+NXT_PACKET_IN (xid=0x0): cookie=0xa total_len=68 in_port=1 (via action) data_len=68 (unbuffered)
+mpls,metadata=0,in_port=0,dl_vlan=99,dl_vlan_pcp=0,dl_src=40:44:44:44:55:49,dl_dst=50:54:00:00:00:07,mpls_label=10,mpls_tc=3,mpls_ttl=64,mpls_bos=1
+])
+
+dnl Modified MPLS controller action.
+dnl In this test, the input packet in vlan-tagged, which should be stripped
+dnl before we push the MPLS and VLAN tags.
+AT_CHECK([ovs-ofctl monitor br0 65534 -P nxm --detach --pidfile 2> ofctl_monitor.log])
+
+for i in 1 2 3; do
+ ovs-appctl netdev-dummy/receive p1 'in_port(1),eth(src=40:44:44:44:55:50,dst=50:54:00:00:00:07),eth_type(0x8100),vlan(vid=88,pcp=7),encap(eth_type(0x0800),ipv4(src=192.168.0.1,dst=192.168.0.2,proto=6,tos=0,ttl=64,frag=no))'
+done
+OVS_WAIT_UNTIL([test `wc -l < ofctl_monitor.log` -ge 6])
+ovs-appctl -t ovs-ofctl exit
+
+AT_CHECK([cat ofctl_monitor.log], [0], [dnl
+NXT_PACKET_IN (xid=0x0): cookie=0xa total_len=68 in_port=1 (via action) data_len=68 (unbuffered)
+mpls,metadata=0,in_port=0,dl_vlan=99,dl_vlan_pcp=0,dl_src=40:44:44:44:55:50,dl_dst=50:54:00:00:00:07,mpls_label=10,mpls_tc=3,mpls_ttl=64,mpls_bos=1
+dnl
+NXT_PACKET_IN (xid=0x0): cookie=0xa total_len=68 in_port=1 (via action) data_len=68 (unbuffered)
+mpls,metadata=0,in_port=0,dl_vlan=99,dl_vlan_pcp=0,dl_src=40:44:44:44:55:50,dl_dst=50:54:00:00:00:07,mpls_label=10,mpls_tc=3,mpls_ttl=64,mpls_bos=1
+dnl
+NXT_PACKET_IN (xid=0x0): cookie=0xa total_len=68 in_port=1 (via action) data_len=68 (unbuffered)
+mpls,metadata=0,in_port=0,dl_vlan=99,dl_vlan_pcp=0,dl_src=40:44:44:44:55:50,dl_dst=50:54:00:00:00:07,mpls_label=10,mpls_tc=3,mpls_ttl=64,mpls_bos=1
+])
+
+dnl Modified MPLS controller action.
+dnl In this test, we push the MPLS tag before pushing a VLAN tag, so we see
+dnl both of these in the final flow.
+AT_CHECK([ovs-ofctl monitor br0 65534 -P nxm --detach --pidfile 2> ofctl_monitor.log])
+
+for i in 1 2 3; do
+ ovs-appctl netdev-dummy/receive p1 'in_port(1),eth(src=40:44:44:44:55:51,dst=50:54:00:00:00:07),eth_type(0x0800),ipv4(src=192.168.0.1,dst=192.168.0.2,proto=6,tos=0,ttl=64,frag=no)'
+done
+OVS_WAIT_UNTIL([test `wc -l < ofctl_monitor.log` -ge 6])
+ovs-appctl -t ovs-ofctl exit
+
+AT_CHECK([cat ofctl_monitor.log], [0], [dnl
+NXT_PACKET_IN (xid=0x0): cookie=0xa total_len=68 in_port=1 (via action) data_len=68 (unbuffered)
+mpls,metadata=0,in_port=0,dl_vlan=99,dl_vlan_pcp=1,dl_src=40:44:44:44:55:51,dl_dst=50:54:00:00:00:07,mpls_label=10,mpls_tc=3,mpls_ttl=64,mpls_bos=1
+dnl
+NXT_PACKET_IN (xid=0x0): cookie=0xa total_len=68 in_port=1 (via action) data_len=68 (unbuffered)
+mpls,metadata=0,in_port=0,dl_vlan=99,dl_vlan_pcp=1,dl_src=40:44:44:44:55:51,dl_dst=50:54:00:00:00:07,mpls_label=10,mpls_tc=3,mpls_ttl=64,mpls_bos=1
+dnl
+NXT_PACKET_IN (xid=0x0): cookie=0xa total_len=68 in_port=1 (via action) data_len=68 (unbuffered)
+mpls,metadata=0,in_port=0,dl_vlan=99,dl_vlan_pcp=1,dl_src=40:44:44:44:55:51,dl_dst=50:54:00:00:00:07,mpls_label=10,mpls_tc=3,mpls_ttl=64,mpls_bos=1
+])
+
+dnl Modified MPLS controller action.
+dnl In this test, the input packet in vlan-tagged, which should be stripped
+dnl before we push the MPLS and VLAN tags.
+AT_CHECK([ovs-ofctl monitor br0 65534 -P nxm --detach --pidfile 2> ofctl_monitor.log])
+
+for i in 1 2 3; do
+ ovs-appctl netdev-dummy/receive p1 'in_port(1),eth(src=40:44:44:44:55:52,dst=50:54:00:00:00:07),eth_type(0x8100),vlan(vid=88,pcp=7),encap(eth_type(0x0800),ipv4(src=192.168.0.1,dst=192.168.0.2,proto=6,tos=0,ttl=64,frag=no))'
+done
+OVS_WAIT_UNTIL([test `wc -l < ofctl_monitor.log` -ge 6])
+ovs-appctl -t ovs-ofctl exit
+
+AT_CHECK([cat ofctl_monitor.log], [0], [dnl
+NXT_PACKET_IN (xid=0x0): cookie=0xa total_len=68 in_port=1 (via action) data_len=68 (unbuffered)
+mpls,metadata=0,in_port=0,dl_vlan=99,dl_vlan_pcp=1,dl_src=40:44:44:44:55:52,dl_dst=50:54:00:00:00:07,mpls_label=10,mpls_tc=3,mpls_ttl=64,mpls_bos=1
+dnl
+NXT_PACKET_IN (xid=0x0): cookie=0xa total_len=68 in_port=1 (via action) data_len=68 (unbuffered)
+mpls,metadata=0,in_port=0,dl_vlan=99,dl_vlan_pcp=1,dl_src=40:44:44:44:55:52,dl_dst=50:54:00:00:00:07,mpls_label=10,mpls_tc=3,mpls_ttl=64,mpls_bos=1
+dnl
+NXT_PACKET_IN (xid=0x0): cookie=0xa total_len=68 in_port=1 (via action) data_len=68 (unbuffered)
+mpls,metadata=0,in_port=0,dl_vlan=99,dl_vlan_pcp=1,dl_src=40:44:44:44:55:52,dl_dst=50:54:00:00:00:07,mpls_label=10,mpls_tc=3,mpls_ttl=64,mpls_bos=1
+])
+
+AT_CHECK([ovs-appctl time/warp 5000], [0], [ignore])
+AT_CHECK([ovs-ofctl dump-flows br0 | ofctl_strip | sort], [0], [dnl
+ cookie=0xa, n_packets=3, n_bytes=180, dl_src=40:44:44:44:55:44 actions=push_mpls:0x8847,load:0xa->OXM_OF_MPLS_LABEL[[]],load:0x3->OXM_OF_MPLS_TC[[]],CONTROLLER:65535
+ cookie=0xa, n_packets=3, n_bytes=180, dl_src=40:44:44:44:55:45 actions=mod_vlan_vid:99,push_mpls:0x8847,load:0xa->OXM_OF_MPLS_LABEL[[]],load:0x3->OXM_OF_MPLS_TC[[]],CONTROLLER:65535
+ cookie=0xa, n_packets=3, n_bytes=180, dl_src=40:44:44:44:55:46 actions=mod_vlan_vid:99,push_mpls:0x8847,load:0xa->OXM_OF_MPLS_LABEL[[]],load:0x3->OXM_OF_MPLS_TC[[]],CONTROLLER:65535
+ cookie=0xa, n_packets=3, n_bytes=180, dl_src=40:44:44:44:55:47 actions=load:0x63->OXM_OF_VLAN_VID[[]],push_mpls:0x8847,load:0xa->OXM_OF_MPLS_LABEL[[]],load:0x3->OXM_OF_MPLS_TC[[]],CONTROLLER:65535
+ cookie=0xa, n_packets=3, n_bytes=180, dl_src=40:44:44:44:55:48 actions=load:0x63->OXM_OF_VLAN_VID[[]],push_mpls:0x8847,load:0xa->OXM_OF_MPLS_LABEL[[]],load:0x3->OXM_OF_MPLS_TC[[]],CONTROLLER:65535
+ cookie=0xa, n_packets=3, n_bytes=180, dl_src=40:44:44:44:55:49 actions=push_mpls:0x8847,load:0xa->OXM_OF_MPLS_LABEL[[]],load:0x3->OXM_OF_MPLS_TC[[]],mod_vlan_vid:99,CONTROLLER:65535
+ cookie=0xa, n_packets=3, n_bytes=180, dl_src=40:44:44:44:55:50 actions=push_mpls:0x8847,load:0xa->OXM_OF_MPLS_LABEL[[]],load:0x3->OXM_OF_MPLS_TC[[]],mod_vlan_vid:99,CONTROLLER:65535
+ cookie=0xa, n_packets=3, n_bytes=180, dl_src=40:44:44:44:55:51 actions=push_mpls:0x8847,load:0xa->OXM_OF_MPLS_LABEL[[]],load:0x3->OXM_OF_MPLS_TC[[]],load:0x63->OXM_OF_VLAN_VID[[]],mod_vlan_pcp:1,CONTROLLER:65535
+ cookie=0xa, n_packets=3, n_bytes=180, dl_src=40:44:44:44:55:52 actions=push_mpls:0x8847,load:0xa->OXM_OF_MPLS_LABEL[[]],load:0x3->OXM_OF_MPLS_TC[[]],load:0x63->OXM_OF_VLAN_VID[[]],mod_vlan_pcp:1,CONTROLLER:65535
+NXST_FLOW reply:
+])
+
+OVS_VSWITCHD_STOP
+AT_CLEANUP
+
AT_SETUP([ofproto-dpif - fragment handling])
OVS_VSWITCHD_START
ADD_OF_PORTS([br0], [1], [2], [3], [4], [5], [6], [90])
--
1.8.4
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