From: Jerin Jacob <jerin.jacob@caviumnetworks.com>
To: Nipun Gupta <nipun.gupta@nxp.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 15:54:18 +0530 [thread overview]
Message-ID: <20170724102417.GA14354@jerin> (raw)
In-Reply-To: <HE1PR0401MB24258D3722EB977BD4CEF973E6BB0@HE1PR0401MB2425.eurprd04.prod.outlook.com>
-----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.
>
> 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.
>
> Thanks,
> Nipun
>
next prev parent reply other threads:[~2017-07-24 10:24 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 [this message]
2017-07-24 11:37 ` Nipun Gupta
2017-07-24 10:32 ` Van Haaren, Harry
2017-07-24 13:06 ` Nipun Gupta
2017-07-24 13:33 ` Van Haaren, Harry
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20170724102417.GA14354@jerin \
--to=jerin.jacob@caviumnetworks.com \
--cc=abhinandan.gujjar@intel.com \
--cc=bruce.richardson@intel.com \
--cc=dev@dpdk.org \
--cc=gage.eads@intel.com \
--cc=harry.van.haaren@intel.com \
--cc=hemant.agrawal@nxp.com \
--cc=narender.vangati@intel.com \
--cc=nikhil.rao@intel.com \
--cc=nipun.gupta@nxp.com \
--cc=thomas@monjalon.net \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).