From: "Lu, Wenzhuo" <wenzhuo.lu@intel.com>
To: "Richardson, Bruce" <bruce.richardson@intel.com>
Cc: "dev@dpdk.org" <dev@dpdk.org>, "Wu, Jingjing" <jingjing.wu@intel.com>
Subject: Re: [dpdk-dev] [PATCH v2 1/2] ixgbe: VF supports mailbox interruption for PF link up/down
Date: Wed, 15 Jun 2016 00:57:25 +0000 [thread overview]
Message-ID: <6A0DE07E22DDAD4C9103DF62FEBC09090348648B@shsmsx102.ccr.corp.intel.com> (raw)
In-Reply-To: <20160614165338.GA9836@bricha3-MOBL3>
Hi Bruce,
> -----Original Message-----
> From: Richardson, Bruce
> Sent: Wednesday, June 15, 2016 12:54 AM
> To: Lu, Wenzhuo
> Cc: dev@dpdk.org; Wu, Jingjing
> Subject: Re: [dpdk-dev] [PATCH v2 1/2] ixgbe: VF supports mailbox
> interruption for PF link up/down
>
> On Wed, Jun 01, 2016 at 09:53:08AM +0800, Wenzhuo Lu wrote:
> > In this scenario, kernel PF + DPDK VF, when PF finds the link state
> > changes, up -> down or down -> up, it will send a message to VF by
> > mailbox. This link state change may be triggered by PHY
> > disconnection/reconnection, configuration like *ifconfig down/up* or
> > interface parameter, like MTU, change.
> > This patch enables the support of the mailbox interruption, so VF can
> > receive the message of link up/down.
> > After VF receives this message, VF port need to be reset to recover.
> > So the handler of this message registers a reset callback to let APP
> > reset the VF port.
> >
> Hi Wenzhuo,
>
> I'm a little unclear as to the last paragraph of this message. Does the app
> configure the callback to handle the reset, or does the driver set up a
> callback automatically and handle the event itself? [In other words,
> who/what is the "handler" in the final sentence, the driver or the app?]
Sorry, I may not make it clear. The handler is the APP. In the code, _rte_eth_dev_callback_process is used for the message. It's the APP's responsibility to realize the callback function and decide what to do with the message.
>
> Thanks,
> /Bruce
next prev parent reply other threads:[~2016-06-15 0:57 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-24 6:06 [dpdk-dev] [PATCH 0/2] support mailbox interruption on ixgbe/igb VF Wenzhuo Lu
2016-05-24 6:06 ` [dpdk-dev] [PATCH 1/2] ixgbe: VF supports mailbox interruption for PF link up/down Wenzhuo Lu
2016-05-27 8:31 ` Wu, Jingjing
2016-05-31 8:45 ` Lu, Wenzhuo
2016-05-24 6:06 ` [dpdk-dev] [PATCH 2/2] igb: " Wenzhuo Lu
2016-06-01 1:53 ` [dpdk-dev] [PATCH v2 0/2] support mailbox interruption on ixgbe/igb VF Wenzhuo Lu
2016-06-01 1:53 ` [dpdk-dev] [PATCH v2 1/2] ixgbe: VF supports mailbox interruption for PF link up/down Wenzhuo Lu
2016-06-02 3:38 ` Wu, Jingjing
2016-06-14 16:53 ` Bruce Richardson
2016-06-15 0:57 ` Lu, Wenzhuo [this message]
2016-06-01 1:53 ` [dpdk-dev] [PATCH v2 2/2] igb: " Wenzhuo Lu
2016-06-13 0:48 ` Wu, Jingjing
2016-06-15 10:29 ` [dpdk-dev] [PATCH v2 0/2] support mailbox interruption on ixgbe/igb VF Bruce Richardson
2016-06-28 10:16 ` [dpdk-dev] [PATCH " Luca Boccassi
2016-06-28 15:10 ` Luca Boccassi
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=6A0DE07E22DDAD4C9103DF62FEBC09090348648B@shsmsx102.ccr.corp.intel.com \
--to=wenzhuo.lu@intel.com \
--cc=bruce.richardson@intel.com \
--cc=dev@dpdk.org \
--cc=jingjing.wu@intel.com \
/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).