From: "Lu, Wenzhuo" <wenzhuo.lu@intel.com>
To: Shahaf Shuler <shahafs@mellanox.com>,
"Wu, Jingjing" <jingjing.wu@intel.com>,
"Yigit, Ferruh" <ferruh.yigit@intel.com>
Cc: "dev@dpdk.org" <dev@dpdk.org>
Subject: Re: [dpdk-dev] [PATCH v3 04/10] app/testpmd: convert to new Ethdev Tx offloads API
Date: Tue, 9 Jan 2018 11:37:07 +0000 [thread overview]
Message-ID: <6A0DE07E22DDAD4C9103DF62FEBC09093B70C9CA@shsmsx102.ccr.corp.intel.com> (raw)
In-Reply-To: <VI1PR05MB31498450924E34181280ADD6C3100@VI1PR05MB3149.eurprd05.prod.outlook.com>
Hi Shahaf,
> -----Original Message-----
> From: Shahaf Shuler [mailto:shahafs@mellanox.com]
> Sent: Tuesday, January 9, 2018 6:02 PM
> To: Lu, Wenzhuo <wenzhuo.lu@intel.com>; Wu, Jingjing
> <jingjing.wu@intel.com>; Yigit, Ferruh <ferruh.yigit@intel.com>
> Cc: dev@dpdk.org
> Subject: RE: [dpdk-dev] [PATCH v3 04/10] app/testpmd: convert to new
> Ethdev Tx offloads API
>
> Tuesday, January 9, 2018 9:14 AM, Lu, Wenzhuo:
> > > The original code doesn't have such restriction because testpmd
> > > wasn't configuring Tx offloads at all. It used it's own Tx offloads
> > > enum (which I removed on later patches) to indicate which offloads is set.
> > > From the device perspective all the Tx offloads should be set.
> > > It did had a way to configure offloads with txqflags parameter, but
> > > this required queues reconfigurations.
> > ' cmd_tx_vlan_set_parsed' is the function which configures TX vlan
> insertion.
> > This patch adds the restriction in it.
> > For example, on ixgbe it does support on the fly configuration. APP
> > doesn't need to stop the device or reconfigure the queues.
>
> What is mean is that in the old offloads API, all the Tx offloads were enabled
> by default, besides the ones which were masked with txqflags.
> This is why testpmd didn't have any limitation on changing the Tx offloads.
> All of them were enabled, it just needed to choose with which one to use.
>
> Now, with the new offloads API, the Tx offloads are disabled by default, and
> enabled per application need on device and queue configuration.
> In order to call device/queue configuration the port must be stopped. This is
> requirement from ethdev API.
>
> Now, there is an API in ethdev to configure Rx VLAN offloads on the flight for
> supported devices.
> If there are devices which supports it also in the Tx side, and you see a good
> use case for that, then need to think of new API in ethdev to configure Tx
> VLAN offloads on the flight.
>
> However, the plain conversion of testpmd from the old to the new API
> requires the port to be stopped for all of the Tx offloads.
Let's just talk about TX vlan insertion. Actually there's no ethdev API for it. And no configuration for it. Because vlan insertion is simple, it only need to add a vlan tag when transmitting packets.
You can see it's per packet thing. APP can set the ol_flags and vlan_tci in the mbuf of every packet to enable this function for the packet or not. I think it does be a on the fly function on any NIC.
next prev parent reply other threads:[~2018-01-09 11:37 UTC|newest]
Thread overview: 78+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-23 12:07 [dpdk-dev] [PATCH 0/5] convert testpmd to new ethdev " Shahaf Shuler
2017-11-23 12:08 ` [dpdk-dev] [PATCH 1/5] app/testpmd: convert to new Ethdev " Shahaf Shuler
2017-12-04 22:31 ` Ferruh Yigit
2017-12-05 6:39 ` Shahaf Shuler
2017-12-06 22:57 ` Ferruh Yigit
2017-12-07 7:55 ` Shahaf Shuler
2017-11-23 12:08 ` [dpdk-dev] [PATCH 2/5] app/testpmd: remove txqflags Shahaf Shuler
2017-12-04 22:31 ` Ferruh Yigit
2017-12-05 6:48 ` Shahaf Shuler
2017-12-06 23:04 ` Ferruh Yigit
2017-12-07 7:56 ` Shahaf Shuler
2017-12-12 12:45 ` Maciej Czekaj
2017-12-13 7:25 ` Shahaf Shuler
2017-11-23 12:08 ` [dpdk-dev] [PATCH 3/5] app/testpmd: add command line option for multiseg Shahaf Shuler
2017-11-23 12:08 ` [dpdk-dev] [PATCH 4/5] app/testpmd: add command line option for mbuf fast free Shahaf Shuler
2017-11-23 12:08 ` [dpdk-dev] [PATCH 5/5] app/testpmd: enforce offloads caps Shahaf Shuler
2017-12-12 12:52 ` [dpdk-dev] [PATCH v2 00/10] convert testpmd to new ethdev offloads API Shahaf Shuler
2017-12-12 12:52 ` [dpdk-dev] [PATCH v2 01/10] app/testpmd: fix port configuration print Shahaf Shuler
2017-12-12 12:52 ` [dpdk-dev] [PATCH v2 02/10] app/testpmd: convert to new Ethdev Rx offloads API Shahaf Shuler
2017-12-12 12:52 ` [dpdk-dev] [PATCH v2 03/10] app/testpmd: support check of single port stop Shahaf Shuler
2017-12-12 12:52 ` [dpdk-dev] [PATCH v2 04/10] app/testpmd: convert to new Ethdev Tx offloads API Shahaf Shuler
2018-01-05 18:11 ` Maciej Czekaj
2018-01-07 15:24 ` Shahaf Shuler
2017-12-12 12:52 ` [dpdk-dev] [PATCH v2 05/10] app/testpmd: fix flowgen forwarding ol flags Shahaf Shuler
2018-01-09 5:32 ` Lu, Wenzhuo
2017-12-12 12:52 ` [dpdk-dev] [PATCH v2 06/10] app/testpmd: cleanup internal Tx offloads flags field Shahaf Shuler
2017-12-12 12:52 ` [dpdk-dev] [PATCH v2 07/10] app/testpmd: add command line option for Tx offloads Shahaf Shuler
2017-12-12 12:52 ` [dpdk-dev] [PATCH v2 08/10] app/testpmd: remove txqflags Shahaf Shuler
2017-12-12 12:52 ` [dpdk-dev] [PATCH v2 09/10] app/testpmd: enforce offloads caps Shahaf Shuler
2017-12-12 12:52 ` [dpdk-dev] [PATCH v2 10/10] app/testpmd: fix on the flight VLAN configuration Shahaf Shuler
2017-12-26 9:44 ` [dpdk-dev] [PATCH v3 00/10] convert testpmd to new ethdev offloads API Shahaf Shuler
2017-12-26 9:44 ` [dpdk-dev] [PATCH v3 01/10] app/testpmd: fix port configuration print Shahaf Shuler
2018-01-05 3:33 ` Lu, Wenzhuo
2017-12-26 9:44 ` [dpdk-dev] [PATCH v3 02/10] app/testpmd: convert to new Ethdev Rx offloads API Shahaf Shuler
2018-01-09 3:05 ` Lu, Wenzhuo
2018-01-19 19:30 ` Patil, Harish
2018-01-20 19:29 ` Shahaf Shuler
2017-12-26 9:44 ` [dpdk-dev] [PATCH v3 03/10] app/testpmd: support check of single port stop Shahaf Shuler
2018-01-09 3:20 ` Lu, Wenzhuo
2017-12-26 9:44 ` [dpdk-dev] [PATCH v3 04/10] app/testpmd: convert to new Ethdev Tx offloads API Shahaf Shuler
2018-01-09 5:27 ` Lu, Wenzhuo
2018-01-09 6:47 ` Shahaf Shuler
2018-01-09 7:13 ` Lu, Wenzhuo
2018-01-09 10:02 ` Shahaf Shuler
2018-01-09 11:37 ` Lu, Wenzhuo [this message]
2018-01-09 12:14 ` Ananyev, Konstantin
2018-01-10 0:37 ` Lu, Wenzhuo
2017-12-26 9:44 ` [dpdk-dev] [PATCH v3 05/10] app/testpmd: fix flowgen forwarding ol flags Shahaf Shuler
2018-01-09 5:35 ` Lu, Wenzhuo
2017-12-26 9:44 ` [dpdk-dev] [PATCH v3 06/10] app/testpmd: cleanup internal Tx offloads flags field Shahaf Shuler
2018-01-09 6:30 ` Lu, Wenzhuo
2017-12-26 9:44 ` [dpdk-dev] [PATCH v3 07/10] app/testpmd: add command line option for Tx offloads Shahaf Shuler
2017-12-26 9:44 ` [dpdk-dev] [PATCH v3 08/10] app/testpmd: remove txqflags Shahaf Shuler
2018-01-09 7:17 ` Lu, Wenzhuo
2018-01-09 10:07 ` Shahaf Shuler
2018-01-09 11:51 ` Lu, Wenzhuo
2017-12-26 9:44 ` [dpdk-dev] [PATCH v3 09/10] app/testpmd: enforce offloads caps Shahaf Shuler
2018-01-09 7:48 ` Lu, Wenzhuo
2017-12-26 9:44 ` [dpdk-dev] [PATCH v3 10/10] app/testpmd: fix on the flight VLAN configuration Shahaf Shuler
2018-01-09 8:05 ` Lu, Wenzhuo
2018-01-09 10:03 ` Shahaf Shuler
2018-01-09 11:44 ` Lu, Wenzhuo
2018-01-10 9:09 ` [dpdk-dev] [PATCH v4 00/11] convert testpmd to new ethdev offloads API Shahaf Shuler
2018-01-10 9:09 ` [dpdk-dev] [PATCH v4 01/11] app/testpmd: fix port configuration print Shahaf Shuler
2018-01-10 9:09 ` [dpdk-dev] [PATCH v4 02/11] app/testpmd: convert to new Ethdev Rx offloads API Shahaf Shuler
2018-01-10 9:09 ` [dpdk-dev] [PATCH v4 03/11] app/testpmd: support check of single port stop Shahaf Shuler
2018-01-10 9:09 ` [dpdk-dev] [PATCH v4 04/11] app/testpmd: convert to new Ethdev Tx offloads API Shahaf Shuler
2018-01-10 9:09 ` [dpdk-dev] [PATCH v4 05/11] app/testpmd: fix flowgen forwarding ol flags Shahaf Shuler
2018-01-10 9:09 ` [dpdk-dev] [PATCH v4 06/11] app/testpmd: cleanup internal Tx offloads flags field Shahaf Shuler
2018-01-10 9:09 ` [dpdk-dev] [PATCH v4 07/11] app/testpmd: add command line option for Tx offloads Shahaf Shuler
2018-01-15 3:06 ` Lu, Wenzhuo
2018-01-10 9:09 ` [dpdk-dev] [PATCH v4 08/11] app/testpmd: remove txqflags Shahaf Shuler
2018-01-10 9:09 ` [dpdk-dev] [PATCH v4 09/11] app/testpmd: enforce offloads caps Shahaf Shuler
2018-01-10 9:09 ` [dpdk-dev] [PATCH v4 10/11] app/testpmd: adjust on the flight VLAN configuration Shahaf Shuler
2018-01-15 3:30 ` Lu, Wenzhuo
2018-01-10 9:09 ` [dpdk-dev] [PATCH v4 11/11] app/testpmd: enable fast free Tx offload by default Shahaf Shuler
2018-01-15 3:33 ` Lu, Wenzhuo
2018-01-15 10:00 ` [dpdk-dev] [PATCH v4 00/11] convert testpmd to new ethdev offloads API Thomas Monjalon
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