From: Nipun Gupta <nipun.gupta@nxp.com>
To: Jerin Jacob <jerin.jacob@caviumnetworks.com>
Cc: Nikhil Rao <nikhil.rao@intel.com>,
"gage.eads@intel.com" <gage.eads@intel.com>,
"dev@dpdk.org" <dev@dpdk.org>,
"thomas@monjalon.net" <thomas@monjalon.net>,
"bruce.richardson@intel.com" <bruce.richardson@intel.com>,
"harry.van.haaren@intel.com" <harry.van.haaren@intel.com>,
Hemant Agrawal <hemant.agrawal@nxp.com>,
"narender.vangati@intel.com" <narender.vangati@intel.com>,
Abhinandan Gujjar <abhinandan.gujjar@intel.com>
Subject: Re: [dpdk-dev] [PATCH 1/2] eventdev: add event adapter for ethernet Rx queues
Date: Mon, 24 Jul 2017 11:37:24 +0000 [thread overview]
Message-ID: <HE1PR0401MB2425F293F5B785E9D101D3B8E6BB0@HE1PR0401MB2425.eurprd04.prod.outlook.com> (raw)
In-Reply-To: <20170724102417.GA14354@jerin>
> -----Original Message-----
> From: Jerin Jacob [mailto:jerin.jacob@caviumnetworks.com]
> Sent: Monday, July 24, 2017 15:54
> To: Nipun Gupta <nipun.gupta@nxp.com>
> Cc: Nikhil Rao <nikhil.rao@intel.com>; gage.eads@intel.com; dev@dpdk.org;
> thomas@monjalon.net; bruce.richardson@intel.com;
> harry.van.haaren@intel.com; Hemant Agrawal <hemant.agrawal@nxp.com>;
> narender.vangati@intel.com; Abhinandan Gujjar
> <abhinandan.gujjar@intel.com>
> Subject: Re: [PATCH 1/2] eventdev: add event adapter for ethernet Rx queues
>
> -----Original Message-----
> > Date: Mon, 24 Jul 2017 10:10:50 +0000
> > From: Nipun Gupta <nipun.gupta@nxp.com>
> > To: Nikhil Rao <nikhil.rao@intel.com>, "jerin.jacob@caviumnetworks.com"
> > <jerin.jacob@caviumnetworks.com>
> > CC: "gage.eads@intel.com" <gage.eads@intel.com>, "dev@dpdk.org"
> > <dev@dpdk.org>, "thomas@monjalon.net" <thomas@monjalon.net>,
> > "bruce.richardson@intel.com" <bruce.richardson@intel.com>,
> > "harry.van.haaren@intel.com" <harry.van.haaren@intel.com>, Hemant
> Agrawal
> > <hemant.agrawal@nxp.com>, "narender.vangati@intel.com"
> > <narender.vangati@intel.com>, Abhinandan Gujjar
> > <abhinandan.gujjar@intel.com>
> > Subject: RE: [PATCH 1/2] eventdev: add event adapter for ethernet Rx queues
> >
> > Looking at the rte_event_eth_rx_adapter_queue_add &
> event_eth_rx_adapter_service_func
> > it seems that this indeed will not fit with the cases where ethdev is capable of
> enqueing packets
> > to the eventdev (as was mentioned in Jerin's first RFC).
> >
> > In case of hardware based eventdev and queues, these function should also
> invoke respective PMD
> > HW configs. e.g. In queue case - rte_eventdev and rte_ethdev - both PMDs at
> hw level shall be configured.
> >
> > A typical eventdev hardware will require queues of eth devices will be
> configured to directly attach to
> > eventdev in the hardware.
> >
> > Mapping it to NXP eventdev, enabling this functionality requires some
> configuration where dev private
> > information of both the devices (event dev and eth dev) is required at the same
> time,
> > and the final configuration is provided via eth device to H/W. So, this require
> inter device communication in DPDK.
>
> Just like dpaa2 bus layer functions used in another subsystems. You
> can export a function from ethdev dpaa2 to eventdev dpaa2 for ethdev rx queue
> to eventdev queue connection.
Yes! That could be done to resolve PMD interdependencies.
>
> >
> > Jerin,
> >
> > I have an impression that Cavium hardware has H/W capability to inject
> packets from Ethernet
> > devices to event devices? If yes, how do you plan to support it?
>
> Please check the latest review comments on this patch set
> http://dpdk.org/dev/patchwork/patch/26534/.
>
> Nikhil is changing ops(function pointer) based approach. With that HW
> support can be added.
This looks great :). Somehow missed them.
Thanks,
Nipun
>
> >
> > Thanks,
> > Nipun
> >
next prev parent reply other threads:[~2017-07-24 11:37 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-09 20:38 [dpdk-dev] [RFC] " Gage Eads
2017-05-11 16:38 ` Jerin Jacob
2017-05-16 20:51 ` Thomas Monjalon
2017-05-24 4:30 ` Rao, Nikhil
2017-06-19 10:05 ` Jerin Jacob
2017-06-26 13:19 ` Jerin Jacob
2017-06-28 6:47 ` Rao, Nikhil
2017-07-06 21:52 ` [dpdk-dev] [PATCH 1/2] " Nikhil Rao
2017-07-06 14:18 ` Jerin Jacob
2017-07-07 6:21 ` Rao, Nikhil
2017-07-07 15:03 ` Jerin Jacob
2017-07-07 15:57 ` Jerin Jacob
2017-07-10 6:14 ` Rao, Nikhil
2017-07-10 10:41 ` Jerin Jacob
2017-07-13 3:26 ` Rao, Nikhil
2017-07-13 18:45 ` Jerin Jacob
2017-07-27 10:58 ` Rao, Nikhil
2017-07-29 15:12 ` Jerin Jacob
2017-07-31 3:57 ` Nipun Gupta
2017-07-31 15:31 ` Jerin Jacob
2017-08-01 8:40 ` Rao, Nikhil
2017-08-01 16:42 ` Jerin Jacob
2017-08-02 19:19 ` Eads, Gage
2017-08-03 6:23 ` Jerin Jacob
2017-08-09 2:23 ` Eads, Gage
2017-08-09 16:19 ` Jerin Jacob
2017-08-09 19:24 ` Eads, Gage
2017-08-10 16:53 ` Jerin Jacob
2017-08-14 8:48 ` Rao, Nikhil
2017-08-14 11:11 ` Jerin Jacob
2017-08-16 5:06 ` Rao, Nikhil
2017-08-11 5:25 ` Rao, Nikhil
2017-08-11 9:49 ` Jerin Jacob
2017-09-04 6:37 ` Jerin Jacob
2017-07-06 21:52 ` [dpdk-dev] [PATCH 2/2] eventdev: add event eth rx adapter unit tests Nikhil Rao
2017-07-24 10:10 ` [dpdk-dev] [PATCH 1/2] eventdev: add event adapter for ethernet Rx queues Nipun Gupta
2017-07-24 10:24 ` Jerin Jacob
2017-07-24 11:37 ` Nipun Gupta [this message]
2017-07-24 10:32 ` Van Haaren, Harry
2017-07-24 13:06 ` Nipun Gupta
2017-07-24 13:33 ` Van Haaren, Harry
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