* Re: [PATCH iproute2] route: label externally offloaded routes
2015-03-08 6:15 [PATCH iproute2] route: label externally offloaded routes sfeldma
@ 2015-03-08 6:57 ` Jiri Pirko
[not found] ` <CAJieiUgz9O7LFhzONx5JKRv0o4+6hSHNtRgKaaKAn2ph4jdC2g@mail.gmail.com>
2015-03-08 14:14 ` roopa
` (3 subsequent siblings)
4 siblings, 1 reply; 13+ messages in thread
From: Jiri Pirko @ 2015-03-08 6:57 UTC (permalink / raw)
To: sfeldma; +Cc: netdev, stephen
Sun, Mar 08, 2015 at 07:15:35AM CET, sfeldma@gmail.com wrote:
>From: Scott Feldman <sfeldma@gmail.com>
>
>On ip route print dump, label externally offloaded routes with "external".
>Offloaded routes are flagged with RTNH_F_EXTERNAL, a recent additon to
>net-next. For example:
>
>$ ip route
>default via 192.168.0.2 dev eth0
>11.0.0.0/30 dev swp1 proto kernel scope link src 11.0.0.2 external
>11.0.0.4/30 via 11.0.0.1 dev swp1 proto zebra metric 20 external
>11.0.0.8/30 dev swp2 proto kernel scope link src 11.0.0.10 external
>11.0.0.12/30 via 11.0.0.9 dev swp2 proto zebra metric 20 external
>12.0.0.2 proto zebra metric 30 external
> nexthop via 11.0.0.1 dev swp1 weight 1
> nexthop via 11.0.0.9 dev swp2 weight 1
>12.0.0.3 via 11.0.0.1 dev swp1 proto zebra metric 20 external
>12.0.0.4 via 11.0.0.9 dev swp2 proto zebra metric 20 external
>192.168.0.0/24 dev eth0 proto kernel scope link src 192.168.0.15
>
>Signed-off-by: Scott Feldman <sfeldma@gmail.com>
Reviewed-by: Jiri Pirko <jiri@resnulli.us>
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCH iproute2] route: label externally offloaded routes
2015-03-08 6:15 [PATCH iproute2] route: label externally offloaded routes sfeldma
2015-03-08 6:57 ` Jiri Pirko
@ 2015-03-08 14:14 ` roopa
2015-03-09 14:02 ` Andy Gospodarek
` (2 subsequent siblings)
4 siblings, 0 replies; 13+ messages in thread
From: roopa @ 2015-03-08 14:14 UTC (permalink / raw)
To: sfeldma; +Cc: netdev, stephen, jiri
On 3/7/15, 10:15 PM, sfeldma@gmail.com wrote:
> From: Scott Feldman <sfeldma@gmail.com>
>
> On ip route print dump, label externally offloaded routes with "external".
> Offloaded routes are flagged with RTNH_F_EXTERNAL, a recent additon to
> net-next. For example:
>
> $ ip route
> default via 192.168.0.2 dev eth0
> 11.0.0.0/30 dev swp1 proto kernel scope link src 11.0.0.2 external
> 11.0.0.4/30 via 11.0.0.1 dev swp1 proto zebra metric 20 external
> 11.0.0.8/30 dev swp2 proto kernel scope link src 11.0.0.10 external
> 11.0.0.12/30 via 11.0.0.9 dev swp2 proto zebra metric 20 external
> 12.0.0.2 proto zebra metric 30 external
> nexthop via 11.0.0.1 dev swp1 weight 1
> nexthop via 11.0.0.9 dev swp2 weight 1
> 12.0.0.3 via 11.0.0.1 dev swp1 proto zebra metric 20 external
> 12.0.0.4 via 11.0.0.9 dev swp2 proto zebra metric 20 external
> 192.168.0.0/24 dev eth0 proto kernel scope link src 192.168.0.15
>
> Signed-off-by: Scott Feldman <sfeldma@gmail.com>
No objections to the patch.
since this is now getting exposed to userspace and there were
suggestions in the past to use words like 'hw' or 'offload' in place of
'external' here, checking to see if you are taking suggestions. If yes,
would 'hw' or 'offloaded' be a better name for the flag ?.
Given that this will come up again for acls and such.
Thanks,
Roopa
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCH iproute2] route: label externally offloaded routes
2015-03-08 6:15 [PATCH iproute2] route: label externally offloaded routes sfeldma
2015-03-08 6:57 ` Jiri Pirko
2015-03-08 14:14 ` roopa
@ 2015-03-09 14:02 ` Andy Gospodarek
2015-03-09 16:16 ` Scott Feldman
2015-03-15 19:39 ` Stephen Hemminger
2015-03-15 19:41 ` Stephen Hemminger
4 siblings, 1 reply; 13+ messages in thread
From: Andy Gospodarek @ 2015-03-09 14:02 UTC (permalink / raw)
To: sfeldma; +Cc: netdev, stephen, jiri
On Sat, Mar 07, 2015 at 10:15:35PM -0800, sfeldma@gmail.com wrote:
> From: Scott Feldman <sfeldma@gmail.com>
>
> On ip route print dump, label externally offloaded routes with "external".
> Offloaded routes are flagged with RTNH_F_EXTERNAL, a recent additon to
> net-next. For example:
>
> $ ip route
> default via 192.168.0.2 dev eth0
> 11.0.0.0/30 dev swp1 proto kernel scope link src 11.0.0.2 external
> 11.0.0.4/30 via 11.0.0.1 dev swp1 proto zebra metric 20 external
> 11.0.0.8/30 dev swp2 proto kernel scope link src 11.0.0.10 external
> 11.0.0.12/30 via 11.0.0.9 dev swp2 proto zebra metric 20 external
> 12.0.0.2 proto zebra metric 30 external
> nexthop via 11.0.0.1 dev swp1 weight 1
> nexthop via 11.0.0.9 dev swp2 weight 1
> 12.0.0.3 via 11.0.0.1 dev swp1 proto zebra metric 20 external
> 12.0.0.4 via 11.0.0.9 dev swp2 proto zebra metric 20 external
> 192.168.0.0/24 dev eth0 proto kernel scope link src 192.168.0.15
>
> Signed-off-by: Scott Feldman <sfeldma@gmail.com>
You know we cannot have a thread about nomenclature without a comment
from me. ;)
My only concern about 'external' is whether or not people will gloss
over it since many of the routes listed will be to networks that
actually are external to the system. That namespace collision could
seem awkward if you are not a traditional follower of this list.
Listing an FDB entry as 'external' does not have the same issue since
all FDB entries are local to the system, so I didn't even
think about the potential when that set was posted.
I would like to just call this 'hardware' since that is what we appear
to be using for offload and would make it clear to the user that this
route was in hardware as well as in the kernel. I'd say the same for
FDB entries, too.
Scott, you have lots of experience in both traditional and Linux worlds,
do you think my concern about confusion is unnecessary?
> ---
> include/linux/rtnetlink.h | 1 +
> ip/iproute.c | 2 ++
> 2 files changed, 3 insertions(+)
>
> diff --git a/include/linux/rtnetlink.h b/include/linux/rtnetlink.h
> index 3eb7810..c74773c 100644
> --- a/include/linux/rtnetlink.h
> +++ b/include/linux/rtnetlink.h
> @@ -332,6 +332,7 @@ struct rtnexthop {
> #define RTNH_F_DEAD 1 /* Nexthop is dead (used by multipath) */
> #define RTNH_F_PERVASIVE 2 /* Do recursive gateway lookup */
> #define RTNH_F_ONLINK 4 /* Gateway is forced on link */
> +#define RTNH_F_EXTERNAL 8 /* Route installed externally */
>
> /* Macros to handle hexthops */
>
> diff --git a/ip/iproute.c b/ip/iproute.c
> index 76d8e36..fdb0a98 100644
> --- a/ip/iproute.c
> +++ b/ip/iproute.c
> @@ -426,6 +426,8 @@ int print_route(const struct sockaddr_nl *who, struct nlmsghdr *n, void *arg)
> fprintf(fp, "onlink ");
> if (r->rtm_flags & RTNH_F_PERVASIVE)
> fprintf(fp, "pervasive ");
> + if (r->rtm_flags & RTNH_F_EXTERNAL)
> + fprintf(fp, "external ");
> if (r->rtm_flags & RTM_F_NOTIFY)
> fprintf(fp, "notify ");
> if (tb[RTA_MARK]) {
> --
> 1.7.10.4
>
> --
> To unsubscribe from this list: send the line "unsubscribe netdev" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCH iproute2] route: label externally offloaded routes
2015-03-09 14:02 ` Andy Gospodarek
@ 2015-03-09 16:16 ` Scott Feldman
2015-03-09 16:51 ` Jeff Kirsher
0 siblings, 1 reply; 13+ messages in thread
From: Scott Feldman @ 2015-03-09 16:16 UTC (permalink / raw)
To: Andy Gospodarek; +Cc: Netdev, stephen, Jiří Pírko
On Mon, Mar 9, 2015 at 7:02 AM, Andy Gospodarek
<gospo@cumulusnetworks.com> wrote:
> On Sat, Mar 07, 2015 at 10:15:35PM -0800, sfeldma@gmail.com wrote:
>> From: Scott Feldman <sfeldma@gmail.com>
>>
>> On ip route print dump, label externally offloaded routes with "external".
>> Offloaded routes are flagged with RTNH_F_EXTERNAL, a recent additon to
>> net-next. For example:
>>
>> $ ip route
>> default via 192.168.0.2 dev eth0
>> 11.0.0.0/30 dev swp1 proto kernel scope link src 11.0.0.2 external
>> 11.0.0.4/30 via 11.0.0.1 dev swp1 proto zebra metric 20 external
>> 11.0.0.8/30 dev swp2 proto kernel scope link src 11.0.0.10 external
>> 11.0.0.12/30 via 11.0.0.9 dev swp2 proto zebra metric 20 external
>> 12.0.0.2 proto zebra metric 30 external
>> nexthop via 11.0.0.1 dev swp1 weight 1
>> nexthop via 11.0.0.9 dev swp2 weight 1
>> 12.0.0.3 via 11.0.0.1 dev swp1 proto zebra metric 20 external
>> 12.0.0.4 via 11.0.0.9 dev swp2 proto zebra metric 20 external
>> 192.168.0.0/24 dev eth0 proto kernel scope link src 192.168.0.15
>>
>> Signed-off-by: Scott Feldman <sfeldma@gmail.com>
>
> You know we cannot have a thread about nomenclature without a comment
> from me. ;)
>
> My only concern about 'external' is whether or not people will gloss
> over it since many of the routes listed will be to networks that
> actually are external to the system. That namespace collision could
> seem awkward if you are not a traditional follower of this list.
> Listing an FDB entry as 'external' does not have the same issue since
> all FDB entries are local to the system, so I didn't even
> think about the potential when that set was posted.
>
> I would like to just call this 'hardware' since that is what we appear
> to be using for offload and would make it clear to the user that this
> route was in hardware as well as in the kernel. I'd say the same for
> FDB entries, too.
>
> Scott, you have lots of experience in both traditional and Linux worlds,
> do you think my concern about confusion is unnecessary?
Votes so far: 1 for "external", 1 for "hardware", 1 for "offload" or "hw".
Good point about confusion wrt routes to non-local networks.
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCH iproute2] route: label externally offloaded routes
2015-03-09 16:16 ` Scott Feldman
@ 2015-03-09 16:51 ` Jeff Kirsher
2015-03-09 17:53 ` John W. Linville
0 siblings, 1 reply; 13+ messages in thread
From: Jeff Kirsher @ 2015-03-09 16:51 UTC (permalink / raw)
To: Scott Feldman, Andy Gospodarek; +Cc: Netdev, stephen, Jiří Pírko
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512
On 03/09/2015 09:16 AM, Scott Feldman wrote:
> On Mon, Mar 9, 2015 at 7:02 AM, Andy Gospodarek
> <gospo@cumulusnetworks.com> wrote:
>> On Sat, Mar 07, 2015 at 10:15:35PM -0800, sfeldma@gmail.com
>> wrote:
>>> From: Scott Feldman <sfeldma@gmail.com>
>>>
>>> On ip route print dump, label externally offloaded routes with
>>> "external". Offloaded routes are flagged with RTNH_F_EXTERNAL,
>>> a recent additon to net-next. For example:
>>>
>>> $ ip route default via 192.168.0.2 dev eth0 11.0.0.0/30 dev
>>> swp1 proto kernel scope link src 11.0.0.2 external
>>> 11.0.0.4/30 via 11.0.0.1 dev swp1 proto zebra metric 20
>>> external 11.0.0.8/30 dev swp2 proto kernel scope link src
>>> 11.0.0.10 external 11.0.0.12/30 via 11.0.0.9 dev swp2 proto
>>> zebra metric 20 external 12.0.0.2 proto zebra metric 30
>>> external nexthop via 11.0.0.1 dev swp1 weight 1 nexthop via
>>> 11.0.0.9 dev swp2 weight 1 12.0.0.3 via 11.0.0.1 dev swp1
>>> proto zebra metric 20 external 12.0.0.4 via 11.0.0.9 dev swp2
>>> proto zebra metric 20 external 192.168.0.0/24 dev eth0 proto
>>> kernel scope link src 192.168.0.15
>>>
>>> Signed-off-by: Scott Feldman <sfeldma@gmail.com>
>>
>> You know we cannot have a thread about nomenclature without a
>> comment from me. ;)
>>
>> My only concern about 'external' is whether or not people will
>> gloss over it since many of the routes listed will be to networks
>> that actually are external to the system. That namespace
>> collision could seem awkward if you are not a traditional
>> follower of this list. Listing an FDB entry as 'external' does
>> not have the same issue since all FDB entries are local to the
>> system, so I didn't even think about the potential when that set
>> was posted.
>>
>> I would like to just call this 'hardware' since that is what we
>> appear to be using for offload and would make it clear to the
>> user that this route was in hardware as well as in the kernel.
>> I'd say the same for FDB entries, too.
>>
>> Scott, you have lots of experience in both traditional and Linux
>> worlds, do you think my concern about confusion is unnecessary?
>
> Votes so far: 1 for "external", 1 for "hardware", 1 for "offload"
> or "hw".
>
> Good point about confusion wrt routes to non-local networks.
My $0.02, "hardware" seems most appropriate to me.
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^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCH iproute2] route: label externally offloaded routes
2015-03-09 16:51 ` Jeff Kirsher
@ 2015-03-09 17:53 ` John W. Linville
0 siblings, 0 replies; 13+ messages in thread
From: John W. Linville @ 2015-03-09 17:53 UTC (permalink / raw)
To: jeffrey.t.kirsher
Cc: Scott Feldman, Andy Gospodarek, Netdev, stephen,
Jiří Pírko
On Mon, Mar 09, 2015 at 09:51:35AM -0700, Jeff Kirsher wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA512
>
> On 03/09/2015 09:16 AM, Scott Feldman wrote:
> > On Mon, Mar 9, 2015 at 7:02 AM, Andy Gospodarek
> > <gospo@cumulusnetworks.com> wrote:
> >> On Sat, Mar 07, 2015 at 10:15:35PM -0800, sfeldma@gmail.com
> >> wrote:
> >>> From: Scott Feldman <sfeldma@gmail.com>
> >>>
> >>> On ip route print dump, label externally offloaded routes with
> >>> "external". Offloaded routes are flagged with RTNH_F_EXTERNAL,
> >>> a recent additon to net-next. For example:
> >>>
> >>> $ ip route default via 192.168.0.2 dev eth0 11.0.0.0/30 dev
> >>> swp1 proto kernel scope link src 11.0.0.2 external
> >>> 11.0.0.4/30 via 11.0.0.1 dev swp1 proto zebra metric 20
> >>> external 11.0.0.8/30 dev swp2 proto kernel scope link src
> >>> 11.0.0.10 external 11.0.0.12/30 via 11.0.0.9 dev swp2 proto
> >>> zebra metric 20 external 12.0.0.2 proto zebra metric 30
> >>> external nexthop via 11.0.0.1 dev swp1 weight 1 nexthop via
> >>> 11.0.0.9 dev swp2 weight 1 12.0.0.3 via 11.0.0.1 dev swp1
> >>> proto zebra metric 20 external 12.0.0.4 via 11.0.0.9 dev swp2
> >>> proto zebra metric 20 external 192.168.0.0/24 dev eth0 proto
> >>> kernel scope link src 192.168.0.15
> >>>
> >>> Signed-off-by: Scott Feldman <sfeldma@gmail.com>
> >>
> >> You know we cannot have a thread about nomenclature without a
> >> comment from me. ;)
> >>
> >> My only concern about 'external' is whether or not people will
> >> gloss over it since many of the routes listed will be to networks
> >> that actually are external to the system. That namespace
> >> collision could seem awkward if you are not a traditional
> >> follower of this list. Listing an FDB entry as 'external' does
> >> not have the same issue since all FDB entries are local to the
> >> system, so I didn't even think about the potential when that set
> >> was posted.
> >>
> >> I would like to just call this 'hardware' since that is what we
> >> appear to be using for offload and would make it clear to the
> >> user that this route was in hardware as well as in the kernel.
> >> I'd say the same for FDB entries, too.
> >>
> >> Scott, you have lots of experience in both traditional and Linux
> >> worlds, do you think my concern about confusion is unnecessary?
> >
> > Votes so far: 1 for "external", 1 for "hardware", 1 for "offload"
> > or "hw".
> >
> > Good point about confusion wrt routes to non-local networks.
>
> My $0.02, "hardware" seems most appropriate to me.
Ditto...
--
John W. Linville Someday the world will need a hero, and you
linville@tuxdriver.com might be all we have. Be ready.
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCH iproute2] route: label externally offloaded routes
2015-03-08 6:15 [PATCH iproute2] route: label externally offloaded routes sfeldma
` (2 preceding siblings ...)
2015-03-09 14:02 ` Andy Gospodarek
@ 2015-03-15 19:39 ` Stephen Hemminger
2015-03-15 20:08 ` Scott Feldman
2015-03-15 19:41 ` Stephen Hemminger
4 siblings, 1 reply; 13+ messages in thread
From: Stephen Hemminger @ 2015-03-15 19:39 UTC (permalink / raw)
To: sfeldma; +Cc: netdev, jiri
On Sat, 7 Mar 2015 22:15:35 -0800
sfeldma@gmail.com wrote:
> From: Scott Feldman <sfeldma@gmail.com>
>
> On ip route print dump, label externally offloaded routes with "external".
> Offloaded routes are flagged with RTNH_F_EXTERNAL, a recent additon to
> net-next. For example:
>
> $ ip route
> default via 192.168.0.2 dev eth0
> 11.0.0.0/30 dev swp1 proto kernel scope link src 11.0.0.2 external
> 11.0.0.4/30 via 11.0.0.1 dev swp1 proto zebra metric 20 external
> 11.0.0.8/30 dev swp2 proto kernel scope link src 11.0.0.10 external
> 11.0.0.12/30 via 11.0.0.9 dev swp2 proto zebra metric 20 external
> 12.0.0.2 proto zebra metric 30 external
> nexthop via 11.0.0.1 dev swp1 weight 1
> nexthop via 11.0.0.9 dev swp2 weight 1
> 12.0.0.3 via 11.0.0.1 dev swp1 proto zebra metric 20 external
> 12.0.0.4 via 11.0.0.9 dev swp2 proto zebra metric 20 external
> 192.168.0.0/24 dev eth0 proto kernel scope link src 192.168.0.15
>
> Signed-off-by: Scott Feldman <sfeldma@gmail.com>
Applied to net-next branch of iproute2
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCH iproute2] route: label externally offloaded routes
2015-03-15 19:39 ` Stephen Hemminger
@ 2015-03-15 20:08 ` Scott Feldman
0 siblings, 0 replies; 13+ messages in thread
From: Scott Feldman @ 2015-03-15 20:08 UTC (permalink / raw)
To: Stephen Hemminger; +Cc: Netdev, Jiří Pírko
On Sun, Mar 15, 2015 at 12:39 PM, Stephen Hemminger
<stephen@networkplumber.org> wrote:
> On Sat, 7 Mar 2015 22:15:35 -0800
> sfeldma@gmail.com wrote:
>
>> From: Scott Feldman <sfeldma@gmail.com>
>>
>> On ip route print dump, label externally offloaded routes with "external".
>> Offloaded routes are flagged with RTNH_F_EXTERNAL, a recent additon to
>> net-next. For example:
>>
>> $ ip route
>> default via 192.168.0.2 dev eth0
>> 11.0.0.0/30 dev swp1 proto kernel scope link src 11.0.0.2 external
>> 11.0.0.4/30 via 11.0.0.1 dev swp1 proto zebra metric 20 external
>> 11.0.0.8/30 dev swp2 proto kernel scope link src 11.0.0.10 external
>> 11.0.0.12/30 via 11.0.0.9 dev swp2 proto zebra metric 20 external
>> 12.0.0.2 proto zebra metric 30 external
>> nexthop via 11.0.0.1 dev swp1 weight 1
>> nexthop via 11.0.0.9 dev swp2 weight 1
>> 12.0.0.3 via 11.0.0.1 dev swp1 proto zebra metric 20 external
>> 12.0.0.4 via 11.0.0.9 dev swp2 proto zebra metric 20 external
>> 192.168.0.0/24 dev eth0 proto kernel scope link src 192.168.0.15
>>
>> Signed-off-by: Scott Feldman <sfeldma@gmail.com>
>
> Applied to net-next branch of iproute2
Oops, sorry Stephan, I just sent a v2 with a change to the label. Can
you apply that version?
> All iproute2 commands should be invertable.
> If you show something you need to accept that as input.
> Please fix that.
Working on it.
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCH iproute2] route: label externally offloaded routes
2015-03-08 6:15 [PATCH iproute2] route: label externally offloaded routes sfeldma
` (3 preceding siblings ...)
2015-03-15 19:39 ` Stephen Hemminger
@ 2015-03-15 19:41 ` Stephen Hemminger
4 siblings, 0 replies; 13+ messages in thread
From: Stephen Hemminger @ 2015-03-15 19:41 UTC (permalink / raw)
To: sfeldma; +Cc: netdev, jiri
On Sat, 7 Mar 2015 22:15:35 -0800
sfeldma@gmail.com wrote:
> From: Scott Feldman <sfeldma@gmail.com>
>
> On ip route print dump, label externally offloaded routes with "external".
> Offloaded routes are flagged with RTNH_F_EXTERNAL, a recent additon to
> net-next. For example:
>
> $ ip route
> default via 192.168.0.2 dev eth0
> 11.0.0.0/30 dev swp1 proto kernel scope link src 11.0.0.2 external
> 11.0.0.4/30 via 11.0.0.1 dev swp1 proto zebra metric 20 external
> 11.0.0.8/30 dev swp2 proto kernel scope link src 11.0.0.10 external
> 11.0.0.12/30 via 11.0.0.9 dev swp2 proto zebra metric 20 external
> 12.0.0.2 proto zebra metric 30 external
> nexthop via 11.0.0.1 dev swp1 weight 1
> nexthop via 11.0.0.9 dev swp2 weight 1
> 12.0.0.3 via 11.0.0.1 dev swp1 proto zebra metric 20 external
> 12.0.0.4 via 11.0.0.9 dev swp2 proto zebra metric 20 external
> 192.168.0.0/24 dev eth0 proto kernel scope link src 192.168.0.15
>
> Signed-off-by: Scott Feldman <sfeldma@gmail.com>
All iproute2 commands should be invertable.
If you show something you need to accept that as input.
Please fix that.
^ permalink raw reply [flat|nested] 13+ messages in thread