From: "Tan, Jianfeng" <jianfeng.tan@intel.com>
To: "Burakov, Anatoly" <anatoly.burakov@intel.com>,
"dev@dpdk.org" <dev@dpdk.org>
Cc: "Ananyev, Konstantin" <konstantin.ananyev@intel.com>,
"Richardson, Bruce" <bruce.richardson@intel.com>,
"Pattan, Reshma" <reshma.pattan@intel.com>,
"viktorin@rehivetech.com" <viktorin@rehivetech.com>
Subject: Re: [dpdk-dev] [PATCH v2 07/12] eal: add channel for primary/secondary communication
Date: Fri, 29 Sep 2017 01:03:48 +0000 [thread overview]
Message-ID: <ED26CBA2FAD1BF48A8719AEF02201E36512FA4DC@SHSMSX103.ccr.corp.intel.com> (raw)
In-Reply-To: <cda99f5f-7355-8bcf-1291-798ef0028c89@intel.com>
+ Reshma and Jan.
> -----Original Message-----
> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Burakov, Anatoly
> Sent: Thursday, September 28, 2017 11:30 PM
> To: dev@dpdk.org
> Subject: Re: [dpdk-dev] [PATCH v2 07/12] eal: add channel for
> primary/secondary communication
>
> On 28-Sep-17 4:01 PM, Ananyev, Konstantin wrote:
> > Hi Jianfeng,
> >
> >
> >> -----Original Message-----
> >> From: Tan, Jianfeng
> >> Sent: Thursday, September 28, 2017 2:56 PM
> >> To: dev@dpdk.org
> >> Cc: Richardson, Bruce <bruce.richardson@intel.com>; Ananyev,
> Konstantin <konstantin.ananyev@intel.com>; De Lara Guarch, Pablo
> >> <pablo.de.lara.guarch@intel.com>; thomas@monjalon.net;
> yliu@fridaylinux.org; maxime.coquelin@redhat.com; mtetsuyah@gmail.com;
> >> Yigit, Ferruh <ferruh.yigit@intel.com>; Tan, Jianfeng
> <jianfeng.tan@intel.com>
> >> Subject: [PATCH v2 07/12] eal: add channel for primary/secondary
> communication
> >>
> >> Previouly, there is only one way for primary/secondary to exchange
> >> messages, that is, primary process writes info into some predefind
> >> file, and secondary process reads info out. That cannot address
> >> the requirements:
> >> a. Secondary wants to send info to primary, for example, secondary
> >> would like to send request (about some specific vdev to primary).
> >> b. Sending info at any time, instead of just initialization time.
> >> c. Share FDs with the other side, for vdev like vhost, related FDs
> >> (memory region, kick) should be shared.
> >>
> >> This patch proposes to create a communication channel, as an unix
> >> socket connection, for above requirements. Primary will listen on
> >> the unix socket; secondary will connect this socket to talk.
> >>
> >> Three new APIs are added:
> >>
> >> 1. rte_eal_mp_action_register is used to register an action,
> >> indexed by a string; if the calling component wants to
> >> response the messages from the corresponding component in
> >> its primary process or secondary processes.
> >> 2. rte_eal_mp_action_unregister is used to unregister the action
> >> if the calling component does not want to response the messages.
> >> 3. rte_eal_mp_sendmsg is used to send a message.
> >
> > I think we already have similar channel in librte_pdump().
> > Also it seems like eal_vfio also has it's own socket to communicate
> between mp/sp.
> > Could we probably make it generic - so same code (and socket) be used by
> all such places.
> > Konstantin
> >
>
> Agreed, however looking at this, it's already a generic-enough solution,
> and other places could be fixed to use this in later releases.
Yes, to provide a generic communication way, instead of one channel for each subsystem, is the goal of this patch.
Reshma and Jan, can I ask comment from you to have a look if the way of this patch is generic enough to cover pdump and vfio-sync's requirement?
Possible limitation of this patch (so far) is that it only provides an async way for request/response, do we need synchronous way?
> That said, i believe this particular part of the patchset should go in as a
> separate patchset and more design consideration and input from others.
OK, let's collect more info here, and then take out this patch out as a separate patch.
Thanks,
Jianfeng
next prev parent reply other threads:[~2017-09-29 1:03 UTC|newest]
Thread overview: 158+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-25 9:40 [dpdk-dev] [PATCH 00/12] support to run vdev in the secondary process Jianfeng Tan
2017-08-25 9:40 ` [dpdk-dev] [PATCH 01/12] cryptodev: remove crypto vdev init Jianfeng Tan
2017-09-18 11:48 ` De Lara Guarch, Pablo
2017-08-25 9:40 ` [dpdk-dev] [PATCH 02/12] eal: avoid calling rte_vdev_init() Jianfeng Tan
2017-08-29 12:50 ` Gaëtan Rivet
2017-08-29 22:25 ` Tan, Jianfeng
2017-08-25 9:40 ` [dpdk-dev] [PATCH 03/12] crypto: move vdev helper functions into dedicated file Jianfeng Tan
2017-09-18 11:51 ` De Lara Guarch, Pablo
2017-08-25 9:40 ` [dpdk-dev] [PATCH 04/12] vdev: move to drivers/bus Jianfeng Tan
2017-08-29 13:04 ` Gaëtan Rivet
2017-08-29 22:47 ` Tan, Jianfeng
2017-09-18 11:47 ` De Lara Guarch, Pablo
2017-09-19 6:01 ` Tan, Jianfeng
2017-08-25 9:40 ` [dpdk-dev] [PATCH 05/12] bus/vdev: change log type from EAL to PMD Jianfeng Tan
2017-08-29 12:54 ` Gaëtan Rivet
2017-08-29 22:27 ` Tan, Jianfeng
2017-08-25 9:40 ` [dpdk-dev] [PATCH 06/12] eal: add channel for primary/secondary communication Jianfeng Tan
2017-09-18 13:49 ` Jiayu Hu
2017-09-21 6:11 ` Tan, Jianfeng
2017-09-20 3:00 ` Jiayu Hu
2017-09-21 6:53 ` Tan, Jianfeng
2017-09-27 12:19 ` Yuanhan Liu
2017-09-28 13:50 ` Tan, Jianfeng
2017-09-29 1:24 ` Yuanhan Liu
2017-09-29 10:09 ` Burakov, Anatoly
2017-09-29 10:25 ` Yuanhan Liu
2017-08-25 9:40 ` [dpdk-dev] [PATCH 07/12] bus/vdev: scan and probe vdev in secondary processes Jianfeng Tan
2017-08-25 9:40 ` [dpdk-dev] [PATCH 08/12] ethdev: support attach vdev in secondary process Jianfeng Tan
2017-08-25 9:40 ` [dpdk-dev] [PATCH 09/12] vhost: allocate virtio_net in memzone Jianfeng Tan
2017-08-25 9:40 ` [dpdk-dev] [PATCH 10/12] vhost: support to kick in secondary process Jianfeng Tan
2017-09-21 3:33 ` Yuanhan Liu
2017-09-21 7:04 ` Tan, Jianfeng
2017-09-21 9:17 ` Yuanhan Liu
2017-09-22 2:30 ` Tan, Jianfeng
2017-09-27 9:36 ` Yuanhan Liu
2017-09-28 5:10 ` Tan, Jianfeng
2017-09-28 8:09 ` Tan, Jianfeng
2017-09-30 8:18 ` Yuanhan Liu
2017-09-30 10:50 ` Tan, Jianfeng
2017-08-25 9:40 ` [dpdk-dev] [PATCH 11/12] net/vhost: support to run in the " Jianfeng Tan
2017-09-21 4:29 ` Yuanhan Liu
2017-08-25 9:40 ` [dpdk-dev] [PATCH 12/12] examples/helloworld: do not exit automatically Jianfeng Tan
2017-09-18 11:44 ` De Lara Guarch, Pablo
2017-09-19 5:07 ` Tan, Jianfeng
2017-09-28 13:55 ` [dpdk-dev] [PATCH v2 00/12] support to run vdev in the secondary process Jianfeng Tan
2017-09-28 13:55 ` [dpdk-dev] [PATCH v2 01/12] cryptodev: remove crypto vdev init API Jianfeng Tan
2017-09-28 13:55 ` [dpdk-dev] [PATCH v2 02/12] eal: avoid calling rte_vdev_init() Jianfeng Tan
2017-09-28 13:55 ` [dpdk-dev] [PATCH v2 03/12] cryptodev: avoid dependency on rte_vdev.h Jianfeng Tan
2017-10-05 13:13 ` Jan Blunck
2017-10-09 1:04 ` Tan, Jianfeng
2017-09-28 13:55 ` [dpdk-dev] [PATCH v2 04/12] bus/fslmc: introduce RTE_LOGTYPE_BUS for bus drivers Jianfeng Tan
2017-09-28 13:55 ` [dpdk-dev] [PATCH v2 05/12] bus/vdev: move to vdev bus to drivers/bus Jianfeng Tan
2017-09-28 13:55 ` [dpdk-dev] [PATCH v2 06/12] bus/vdev: normalize log type Jianfeng Tan
2017-09-28 13:55 ` [dpdk-dev] [PATCH v2 07/12] eal: add channel for primary/secondary communication Jianfeng Tan
2017-09-28 15:01 ` Ananyev, Konstantin
2017-09-28 15:29 ` Burakov, Anatoly
2017-09-29 1:03 ` Tan, Jianfeng [this message]
2017-09-29 10:00 ` Burakov, Anatoly
2017-09-30 4:07 ` Tan, Jianfeng
2017-10-02 10:08 ` Burakov, Anatoly
2017-10-05 12:01 ` Jan Blunck
2017-10-09 1:27 ` Tan, Jianfeng
2017-09-28 13:55 ` [dpdk-dev] [PATCH v2 08/12] bus/vdev: scan and probe vdev in secondary processes Jianfeng Tan
2017-10-05 13:04 ` Jan Blunck
2017-10-09 1:08 ` Tan, Jianfeng
2017-09-28 13:55 ` [dpdk-dev] [PATCH v2 09/12] ethdev: support attach vdev in secondary process Jianfeng Tan
2017-10-05 14:26 ` Jan Blunck
2017-10-09 0:56 ` Tan, Jianfeng
2017-09-28 13:55 ` [dpdk-dev] [PATCH v2 10/12] vhost: allocate virtio_net in memzone Jianfeng Tan
2017-09-28 13:55 ` [dpdk-dev] [PATCH v2 11/12] vhost: support to kick in secondary process Jianfeng Tan
2017-09-28 13:55 ` [dpdk-dev] [PATCH v2 12/12] net/vhost: support to run in the " Jianfeng Tan
2017-09-29 8:28 ` Yuanhan Liu
2017-09-30 4:03 ` Tan, Jianfeng
2017-09-30 8:16 ` Yuanhan Liu
2017-09-30 10:06 ` Tan, Jianfeng
2017-09-30 11:49 ` Yuanhan Liu
2017-10-01 23:48 ` Tan, Jianfeng
2017-09-30 8:23 ` Yuanhan Liu
2017-09-30 10:53 ` Tan, Jianfeng
2017-09-30 11:34 ` Yuanhan Liu
2017-10-01 23:46 ` Tan, Jianfeng
2017-10-09 3:20 ` [dpdk-dev] [PATCH v3 0/5] move vdev into drivers/bus Jianfeng Tan
2017-10-09 3:20 ` [dpdk-dev] [PATCH v3 1/5] cryptodev: remove crypto vdev init API Jianfeng Tan
2017-10-09 3:20 ` [dpdk-dev] [PATCH v3 2/5] eal: avoid calling rte_vdev_init() Jianfeng Tan
2017-10-09 3:20 ` [dpdk-dev] [PATCH v3 3/5] bus: introduce RTE_LOGTYPE_BUS for bus drivers Jianfeng Tan
2017-10-09 3:20 ` [dpdk-dev] [PATCH v3 4/5] bus/vdev: move to vdev bus to drivers/bus Jianfeng Tan
2017-10-09 3:20 ` [dpdk-dev] [PATCH v3 5/5] bus/vdev: normalize log type Jianfeng Tan
2017-10-09 10:55 ` [dpdk-dev] [PATCH v4 0/5] move vdev into drivers/bus Jianfeng Tan
2017-10-09 10:55 ` [dpdk-dev] [PATCH v4 1/5] bus/vdev: scan and probe vdev in secondary processes Jianfeng Tan
2017-10-09 10:55 ` [dpdk-dev] [PATCH v4 2/5] ethdev: support attach vdev in secondary process Jianfeng Tan
2017-10-09 10:55 ` [dpdk-dev] [PATCH v4 3/5] vhost: allocate virtio_net in memzone Jianfeng Tan
2017-10-09 10:55 ` [dpdk-dev] [PATCH v4 4/5] vhost: support to kick in secondary process Jianfeng Tan
2017-10-09 10:55 ` [dpdk-dev] [PATCH v4 5/5] net/vhost: support to run in the " Jianfeng Tan
2017-10-09 11:08 ` [dpdk-dev] [PATCH v4 0/5] move vdev into drivers/bus Tan, Jianfeng
2017-10-09 11:27 ` [dpdk-dev] [PATCH v5 " Jianfeng Tan
2017-10-09 11:27 ` [dpdk-dev] [PATCH v5 1/5] cryptodev: remove crypto vdev init API Jianfeng Tan
2017-10-09 11:27 ` [dpdk-dev] [PATCH v5 2/5] eal: remove dependency on vdev Jianfeng Tan
2017-10-09 11:27 ` [dpdk-dev] [PATCH v5 3/5] bus: introduce new log type for bus drivers Jianfeng Tan
2017-10-11 6:54 ` Shreyansh Jain
2017-10-11 10:42 ` Tan, Jianfeng
2017-10-11 11:20 ` Shreyansh Jain
2017-10-12 2:14 ` Tan, Jianfeng
2017-10-09 11:27 ` [dpdk-dev] [PATCH v5 4/5] bus/vdev: move to vdev bus to drivers/bus Jianfeng Tan
2017-10-09 11:27 ` [dpdk-dev] [PATCH v5 5/5] bus/vdev: normalize log type Jianfeng Tan
2017-10-12 8:46 ` [dpdk-dev] [PATCH v6 0/4] move vdev into drivers/bus Jianfeng Tan
2017-10-12 8:46 ` [dpdk-dev] [PATCH v6 1/4] cryptodev: remove crypto vdev init API Jianfeng Tan
2017-10-12 10:06 ` Thomas Monjalon
2017-10-12 8:46 ` [dpdk-dev] [PATCH v6 2/4] eal: remove dependency on vdev Jianfeng Tan
2017-10-12 8:46 ` [dpdk-dev] [PATCH v6 3/4] bus/vdev: move to vdev bus to drivers/bus Jianfeng Tan
2017-10-12 8:46 ` [dpdk-dev] [PATCH v6 4/4] bus/vdev: change log type Jianfeng Tan
2017-10-13 2:04 ` [dpdk-dev] [PATCH v7 0/4] move vdev into drivers/bus Jianfeng Tan
2017-10-13 2:04 ` [dpdk-dev] [PATCH v7 1/4] ethdev: support attach vdev in secondary process Jianfeng Tan
2017-10-13 2:04 ` [dpdk-dev] [PATCH v7 2/4] vhost: allocate virtio_net in memzone Jianfeng Tan
2017-10-13 2:04 ` [dpdk-dev] [PATCH v7 3/4] vhost: support to kick in secondary process Jianfeng Tan
2017-10-13 2:04 ` [dpdk-dev] [PATCH v7 4/4] net/vhost: support to run in the " Jianfeng Tan
2017-10-13 8:26 ` [dpdk-dev] [PATCH v7 0/4] move vdev into drivers/bus Thomas Monjalon
2017-10-13 11:49 ` Tan, Jianfeng
2017-10-13 11:51 ` Jianfeng Tan
2017-10-13 11:51 ` [dpdk-dev] [PATCH v7 1/4] cryptodev: remove crypto vdev init API Jianfeng Tan
2017-10-23 10:06 ` De Lara Guarch, Pablo
2017-10-13 11:51 ` [dpdk-dev] [PATCH v7 2/4] eal: remove dependency on vdev Jianfeng Tan
2017-10-13 11:52 ` [dpdk-dev] [PATCH v7 3/4] bus/vdev: move to vdev bus to drivers/bus Jianfeng Tan
2017-10-23 14:34 ` De Lara Guarch, Pablo
2017-10-13 11:52 ` [dpdk-dev] [PATCH v7 4/4] bus/vdev: change log type Jianfeng Tan
2017-10-25 17:10 ` [dpdk-dev] [PATCH v8 0/4] move vdev into drivers/bus Jianfeng Tan
2017-10-25 17:10 ` [dpdk-dev] [PATCH v8 1/4] cryptodev: remove crypto vdev init API Jianfeng Tan
2017-10-25 17:10 ` [dpdk-dev] [PATCH v8 2/4] eal: remove dependency on vdev Jianfeng Tan
2017-10-25 17:10 ` [dpdk-dev] [PATCH v8 3/4] bus/vdev: move to vdev bus to drivers/bus Jianfeng Tan
2017-10-25 21:32 ` De Lara Guarch, Pablo
2017-10-25 23:03 ` Gaëtan Rivet
2017-10-25 17:10 ` [dpdk-dev] [PATCH v8 4/4] bus/vdev: change log type Jianfeng Tan
2017-10-27 1:06 ` [dpdk-dev] [PATCH v0 0/4] move vdev into drivers/bus Jianfeng Tan
2017-10-27 1:06 ` [dpdk-dev] [PATCH v9 1/4] cryptodev: remove crypto vdev init API Jianfeng Tan
2017-10-27 1:06 ` [dpdk-dev] [PATCH v9 2/4] eal: remove dependency on vdev Jianfeng Tan
2017-10-27 1:06 ` [dpdk-dev] [PATCH v9 3/4] bus/vdev: move to vdev bus to drivers/bus Jianfeng Tan
2017-10-27 7:56 ` Thomas Monjalon
2017-10-27 8:19 ` Tan, Jianfeng
2017-10-27 8:53 ` Thomas Monjalon
2017-10-27 16:57 ` Gaëtan Rivet
2017-10-27 1:06 ` [dpdk-dev] [PATCH v9 4/4] bus/vdev: change log type Jianfeng Tan
2017-10-27 3:23 ` [dpdk-dev] [PATCH v10 0/4] move vdev into drivers/bus Jianfeng Tan
2017-10-27 3:23 ` [dpdk-dev] [PATCH v10 1/4] cryptodev: remove crypto vdev init API Jianfeng Tan
2017-10-27 3:23 ` [dpdk-dev] [PATCH v10 2/4] eal: remove dependency on vdev Jianfeng Tan
2017-10-27 3:23 ` [dpdk-dev] [PATCH v10 3/4] bus/vdev: move to vdev bus to drivers/bus Jianfeng Tan
2017-10-27 3:23 ` [dpdk-dev] [PATCH v10 4/4] bus/vdev: change log type Jianfeng Tan
2017-10-30 8:28 ` [dpdk-dev] [PATCH v11 0/4] move vdev into drivers/bus Jianfeng Tan
2017-10-30 8:28 ` [dpdk-dev] [PATCH v11 1/4] cryptodev: remove crypto vdev init API Jianfeng Tan
2017-10-30 8:28 ` [dpdk-dev] [PATCH v11 2/4] eal: remove dependency on vdev Jianfeng Tan
2017-10-30 8:28 ` [dpdk-dev] [PATCH v11 3/4] bus/vdev: move to vdev bus to drivers/bus Jianfeng Tan
2017-11-07 2:43 ` Thomas Monjalon
2017-11-07 6:21 ` Tan, Jianfeng
2017-10-30 8:28 ` [dpdk-dev] [PATCH v11 4/4] bus/vdev: change log type Jianfeng Tan
2017-11-07 6:54 ` [dpdk-dev] [PATCH v12 0/4] move vdev into drivers/bus Jianfeng Tan
2017-11-07 6:54 ` [dpdk-dev] [PATCH v12 1/4] cryptodev: remove crypto vdev init API Jianfeng Tan
2017-11-07 6:54 ` [dpdk-dev] [PATCH v12 2/4] eal: remove dependency on vdev Jianfeng Tan
2017-11-07 6:54 ` [dpdk-dev] [PATCH v12 3/4] bus/vdev: move to vdev bus to drivers/bus Jianfeng Tan
2017-11-07 6:54 ` [dpdk-dev] [PATCH v12 4/4] bus/vdev: change log type Jianfeng Tan
2017-11-07 15:43 ` [dpdk-dev] [PATCH v12 0/4] move vdev into drivers/bus Thomas Monjalon
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