From: Vinicius Costa Gomes <vinicius.gomes@intel.com>
To: Po Liu <po.liu@nxp.com>,
"davem\@davemloft.net" <davem@davemloft.net>,
"linux-kernel\@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"netdev\@vger.kernel.org" <netdev@vger.kernel.org>
Cc: Claudiu Manoil <claudiu.manoil@nxp.com>,
Vladimir Oltean <vladimir.oltean@nxp.com>,
Alexandru Marginean <alexandru.marginean@nxp.com>,
"michael.chan\@broadcom.com" <michael.chan@broadcom.com>,
"vishal\@chelsio.com" <vishal@chelsio.com>,
"saeedm\@mellanox.com" <saeedm@mellanox.com>,
"leon\@kernel.org" <leon@kernel.org>,
"jiri\@mellanox.com" <jiri@mellanox.com>,
"idosch\@mellanox.com" <idosch@mellanox.com>,
"alexandre.belloni\@bootlin.com" <alexandre.belloni@bootlin.com>,
"UNGLinuxDriver\@microchip.com" <UNGLinuxDriver@microchip.com>,
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"xiyou.wangcong\@gmail.com" <xiyou.wangcong@gmail.com>,
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"pablo\@netfilter.org" <pablo@netfilter.org>,
"moshe\@mellanox.com" <moshe@mellanox.com>,
"m-karicheri2\@ti.com" <m-karicheri2@ti.com>,
"andre.guedes\@linux.intel.com" <andre.guedes@linux.intel.com>,
"stephen\@networkplumber.org" <stephen@networkplumber.org>
Subject: RE: [EXT] Re: [v3,net-next 1/4] net: qos: introduce a gate control flow action
Date: Fri, 24 Apr 2020 10:41:28 -0700 [thread overview]
Message-ID: <874kt83ho7.fsf@intel.com> (raw)
In-Reply-To: <VE1PR04MB6496B9EA946877FB473E5D7892D00@VE1PR04MB6496.eurprd04.prod.outlook.com>
Po Liu <po.liu@nxp.com> writes:
>>
>> One idea that just happened, if you find a way to enable RX timestamping
>> and can rely that all packets have a timestamp, the code can simplified a
>> lot. You wouldn't need any hrtimers, and deciding to drop or not a packet
>> becomes a couple of mathematical operations. Seems worth a thought.
>
> Thanks for the different ideas. The basic problem is we need to know
> now is a close time or open time in action. But I still don't know a
> better way than hrtimer to set the flag.
That's the point, if you have the timestamp of when the packet arrived,
you can calculate if the gate is open and closed at that point. You
don't need to know "now", you work only in terms of "skb->tstamp"
(supposing that's where the timestamp is stored). In other words, it
doesn't matter when the packet arrives at the qdisc action, but when it
arrived at the controller, and the actions should be taken based on that
time.
>
>>
>> The real question is: if requiring for the driver to support at least software
>> RX timestamping is excessive (doesn't seem so to me).
>
> I understand.
>
>>
>>
>> Cheers,
>> --
>> Vinicius
>
> Thanks a lot!
>
> Br,
> Po Liu
--
Vinicius
next prev parent reply other threads:[~2020-04-24 17:41 UTC|newest]
Thread overview: 126+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-06 12:55 [RFC,net-next 0/9] Introduce a flow gate control action and apply IEEE Po Liu
2020-03-06 12:55 ` [RFC,net-next 1/9] net: qos offload add flow status with dropped count Po Liu
2020-03-06 12:56 ` [RFC,net-next 2/9] net: qos: introduce a gate control flow action Po Liu
2020-03-06 19:11 ` Jakub Kicinski
2020-03-07 6:05 ` [EXT] " Po Liu
2020-03-12 22:14 ` Vinicius Costa Gomes
2020-03-13 3:47 ` [EXT] " Po Liu
2020-03-13 18:36 ` Cong Wang
2020-03-14 4:09 ` [EXT] " Po Liu
2020-03-06 12:56 ` [RFC,net-next 3/9] net: schedule: add action gate offloading Po Liu
2020-03-06 19:02 ` Jakub Kicinski
2020-03-06 19:19 ` Jakub Kicinski
2020-03-07 4:38 ` [EXT] " Po Liu
2020-03-06 12:56 ` [RFC,net-next 4/9] net: enetc: add hw tc hw offload features for PSPF capability Po Liu
2020-03-06 12:56 ` [RFC,net-next 5/9] net: enetc: add tc flower psfp offload driver Po Liu
2020-03-12 22:14 ` Vinicius Costa Gomes
2020-03-13 5:59 ` [EXT] " Po Liu
2020-03-06 12:56 ` [RFC,net-next 6/9] net: qos: add tc police offloading action with max frame size limit Po Liu
2020-06-23 6:34 ` [v1,net-next 1/4] " Po Liu
2020-06-23 6:34 ` [v1,net-next 2/4] net: enetc: add support max frame size for tc flower offload Po Liu
2020-06-23 6:34 ` [v1,net-next 3/4] net: qos: police action add index for tc flower offloading Po Liu
2020-06-23 7:09 ` Ido Schimmel
2020-06-23 7:39 ` [EXT] " Po Liu
2020-06-23 10:08 ` Jamal Hadi Salim
2020-06-23 6:34 ` [v1,net-next 4/4] net: enetc add tc flower offload flow metering policing action Po Liu
2020-06-23 14:54 ` kernel test robot
2020-06-23 15:08 ` kernel test robot
2020-06-24 9:36 ` [v2,net-next 1/4] net: qos: add tc police offloading action with max frame size limit Po Liu
2020-06-24 9:36 ` [v2,net-next 2/4] net: enetc: add support max frame size for tc flower offload Po Liu
2020-06-25 5:04 ` David Miller
2020-06-24 9:36 ` [v2,net-next 3/4] net: qos: police action add index for tc flower offloading Po Liu
2020-06-25 5:04 ` David Miller
2020-06-24 9:36 ` [v2,net-next 4/4] net: enetc add tc flower offload flow metering policing action Po Liu
2020-06-25 5:04 ` David Miller
2020-06-25 5:04 ` [v2,net-next 1/4] net: qos: add tc police offloading action with max frame size limit David Miller
2020-06-23 7:01 ` [v1,net-next " Ido Schimmel
2020-03-06 12:56 ` [RFC,net-next 7/9] net: enetc: add support max frame size for tc flower offload Po Liu
2020-03-06 12:56 ` [RFC,net-next 8/9] net: qos: police action add index for tc flower offloading Po Liu
2020-06-21 10:04 ` Ido Schimmel
2020-03-06 12:56 ` [RFC,net-next 9/9] net: enetc add tc flower offload flow metering policing action Po Liu
2020-03-06 12:56 ` [RFC, iproute2-next] iproute2:tc:action: add a gate control action Po Liu
2020-03-24 3:47 ` [v1,net-next 0/5] Introduce a flow gate control action and apply IEEE Po Liu
2020-03-24 3:47 ` [v1,net-next 1/5] net: qos offload add flow status with dropped count Po Liu
2020-03-24 10:01 ` Jiri Pirko
2020-03-24 13:04 ` [EXT] " Po Liu
2020-03-24 3:47 ` [v1,net-next 2/5] net: qos: introduce a gate control flow action Po Liu
2020-03-24 10:19 ` Jiri Pirko
2020-03-24 10:28 ` [EXT] " Po Liu
2020-03-24 3:47 ` [v1,net-next 3/5] net: schedule: add action gate offloading Po Liu
2020-03-24 3:47 ` [v1,net-next 4/5] net: enetc: add hw tc hw offload features for PSPF capability Po Liu
2020-03-24 11:18 ` kbuild test robot
2020-03-24 12:14 ` Jiri Pirko
2020-03-24 3:47 ` [v1,net-next 5/5] net: enetc: add tc flower psfp offload driver Po Liu
2020-03-24 12:53 ` kbuild test robot
2020-03-24 3:47 ` [v1,iproute2 1/2] iproute2:tc:action: add a gate control action Po Liu
2020-03-24 21:59 ` Stephen Hemminger
2020-03-25 2:40 ` [EXT] " Po Liu
2020-03-24 3:47 ` [v1,iproute2 2/2] iproute2: add gate action man page Po Liu
2020-04-14 5:40 ` [v2,net-next 0/4] Introduce a flow gate control action and apply IEEE Po Liu
2020-04-14 5:40 ` [ v2,net-next 1/4] net: qos: introduce a gate control flow action Po Liu
2020-04-14 5:40 ` [ v2,net-next 2/4] net: schedule: add action gate offloading Po Liu
2020-04-14 5:40 ` [ v2,net-next 3/4] net: enetc: add hw tc hw offload features for PSPF capability Po Liu
2020-04-14 5:40 ` [ v2,net-next 4/4] net: enetc: add tc flower psfp offload driver Po Liu
2020-04-14 23:41 ` [v2,net-next 0/4] Introduce a flow gate control action and apply IEEE David Miller
2020-04-18 1:12 ` Po Liu
2020-04-18 1:12 ` [ v2,net-next 1/4] net: qos: introduce a gate control flow action Po Liu
2020-04-18 1:12 ` [ v2,net-next 2/4] net: schedule: add action gate offloading Po Liu
2020-04-18 1:12 ` [ v2,net-next 3/4] net: enetc: add hw tc hw offload features for PSPF capability Po Liu
2020-04-18 1:12 ` [ v2,net-next 4/4] net: enetc: add tc flower psfp offload driver Po Liu
2020-04-18 22:52 ` Vladimir Oltean
2020-04-19 1:44 ` [EXT] " Po Liu
2020-04-22 2:48 ` [v3,net-next 0/4] Introduce a flow gate control action and apply IEEE Po Liu
2020-04-22 2:48 ` [v3,net-next 1/4] net: qos: introduce a gate control flow action Po Liu
2020-04-22 13:23 ` Vlad Buslov
2020-04-23 3:14 ` [EXT] " Po Liu
2020-04-23 7:43 ` Vlad Buslov
2020-04-23 8:32 ` Po Liu
2020-04-23 9:15 ` Po Liu
2020-04-23 11:14 ` Vlad Buslov
2020-04-23 11:03 ` Vlad Buslov
2020-04-22 19:19 ` Allan W. Nielsen
2020-04-22 19:28 ` Vladimir Oltean
2020-04-22 20:05 ` Dave Taht
2020-04-23 3:29 ` [EXT] " Po Liu
2020-04-23 19:11 ` Allan W. Nielsen
2020-04-23 3:27 ` [EXT] " Po Liu
2020-04-23 17:38 ` Vinicius Costa Gomes
2020-04-23 19:17 ` Allan W. Nielsen
2020-04-24 3:23 ` [EXT] " Po Liu
2020-04-24 17:41 ` Vinicius Costa Gomes [this message]
2020-04-25 1:49 ` Po Liu
2020-04-22 2:48 ` [v3,net-next 2/4] net: schedule: add action gate offloading Po Liu
2020-04-22 14:14 ` Vlad Buslov
2020-04-22 2:48 ` [v3,net-next 3/4] net: enetc: add hw tc hw offload features for PSPF capability Po Liu
2020-04-22 2:48 ` [v3,net-next 4/4] net: enetc: add tc flower psfp offload driver Po Liu
2020-04-28 3:34 ` [v4,net-next 0/4] Introduce a flow gate control action and apply IEEE Po Liu
2020-04-28 3:34 ` [v4,net-next 1/4] net: qos: introduce a gate control flow action Po Liu
2020-04-29 17:04 ` Vlad Buslov
2020-04-30 0:52 ` [EXT] " Po Liu
2020-04-28 3:34 ` [v4,net-next 2/4] net: schedule: add action gate offloading Po Liu
2020-04-29 17:40 ` Vlad Buslov
2020-04-28 3:34 ` [v4,net-next 3/4] net: enetc: add hw tc hw offload features for PSPF capability Po Liu
2020-04-28 3:34 ` [v4,net-next 4/4] net: enetc: add tc flower psfp offload driver Po Liu
2020-05-01 0:53 ` [v5,net-next 0/4] Introduce a flow gate control action and apply IEEE Po Liu
2020-05-01 0:53 ` [v5,net-next 1/4] net: qos: introduce a gate control flow action Po Liu
2020-05-01 0:53 ` [v5,net-next 2/4] net: schedule: add action gate offloading Po Liu
2020-05-01 0:53 ` [v5,net-next 3/4] net: enetc: add hw tc hw offload features for PSPF capability Po Liu
2020-05-01 0:53 ` [v5,net-next 4/4] net: enetc: add tc flower psfp offload driver Po Liu
2020-05-03 6:32 ` [v3,iproute2 1/2] iproute2:tc:action: add a gate control action Po Liu
2020-05-03 6:32 ` [v3,iproute2 2/2] iproute2: add gate action man page Po Liu
2020-05-06 8:40 ` [v4,iproute2-next 1/2] iproute2-next:tc:action: add a gate control action Po Liu
2020-05-06 8:40 ` [v4,iproute2-next 2/2] iproute2-next: add gate action man page Po Liu
2020-05-08 7:02 ` [v5,iproute2-next 1/2] iproute2-next:tc:action: add a gate control action Po Liu
2020-05-08 7:02 ` [v5,iproute2-next 2/2] iproute2-next: add gate action man page Po Liu
2020-05-13 2:21 ` [v5,iproute2-next 1/2] iproute2-next:tc:action: add a gate control action David Ahern
2020-05-06 12:54 ` [v4,iproute2-next " Davide Caratti
2020-05-07 2:28 ` [EXT] " Po Liu
2020-05-06 15:21 ` Stephen Hemminger
2020-05-05 0:05 ` [v3,iproute2 1/2] iproute2:tc:action: " Stephen Hemminger
2020-05-05 0:06 ` Stephen Hemminger
2020-05-01 23:08 ` [v5,net-next 0/4] Introduce a flow gate control action and apply IEEE David Miller
2020-06-19 6:01 ` [v2,net-next] net: qos offload add flow status with dropped count Po Liu
2020-06-19 7:03 ` Simon Horman
2020-06-19 18:00 ` Vlad Buslov
2020-06-19 19:54 ` David Miller
2020-04-25 8:56 Re: [v3,net-next 1/4] net: qos: introduce a gate control flow action Po Liu
2020-04-27 6:58 ` Vlad Buslov
2020-04-27 9:27 ` [EXT] " Po Liu
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