From: "Lu, Wenzhuo" <wenzhuo.lu@intel.com>
To: Thomas Monjalon <thomas.monjalon@6wind.com>,
Jerin Jacob <jerin.jacob@caviumnetworks.com>
Cc: "dev@dpdk.org" <dev@dpdk.org>,
"Ananyev, Konstantin" <konstantin.ananyev@intel.com>,
Stephen Hemminger <stephen@networkplumber.org>,
"Richardson, Bruce" <bruce.richardson@intel.com>,
"Chen, Jing D" <jing.d.chen@intel.com>,
"Liang, Cunming" <cunming.liang@intel.com>,
"Wu, Jingjing" <jingjing.wu@intel.com>,
"Zhang, Helin" <helin.zhang@intel.com>
Subject: Re: [dpdk-dev] [PATCH v6 1/4] lib/librte_ether: support device reset
Date: Thu, 23 Jun 2016 00:39:30 +0000 [thread overview]
Message-ID: <6A0DE07E22DDAD4C9103DF62FEBC090903489D75@shsmsx102.ccr.corp.intel.com> (raw)
In-Reply-To: <6984459.KfxJSr4bsX@xps13>
Hi Thomas,
> -----Original Message-----
> From: Thomas Monjalon [mailto:thomas.monjalon@6wind.com]
> Sent: Wednesday, June 22, 2016 5:18 PM
> To: Lu, Wenzhuo; Jerin Jacob
> Cc: dev@dpdk.org; Ananyev, Konstantin; Stephen Hemminger; Richardson,
> Bruce; Chen, Jing D; Liang, Cunming; Wu, Jingjing; Zhang, Helin
> Subject: Re: [dpdk-dev] [PATCH v6 1/4] lib/librte_ether: support device reset
>
> 2016-06-22 08:25, Lu, Wenzhuo:
> > From: Thomas Monjalon [mailto:thomas.monjalon@6wind.com]
> > > 2016-06-22 13:29, Jerin Jacob:
> > > > Thomas,
> > > > As a librte_ether maintainer any comments on this?
> > >
> > > +1 for adding details and make sure naming is good.
> > > I don't really need to comment here because I have already done this
> > > comment
> > > earlier:
> > > http://dpdk.org/ml/archives/dev/2016-June/041845.html
> > > Thank you for insisting.
> > I've add some details in this patch set. If it's not enough, please let me know.
> > And I think this discussion is about what the API name should be like. Actually I
> think all the existing name is describing what is done by the API not when and
> where it should be used, like dev_start/stop.
>
> You're right, I overlooked it:
>
> + * The API will stop the port, clear the rx/tx queues, re-setup the
> + rx/tx
> + * queues, restart the port.
>
> Jerin, which detail do you think is needed?
>
> Wenzhuo, why this function is needed?
As you said below and discussed before, it's a wrapper of the existing functions. The benefit is helping the users avoid the complex implementation when they want to stop and re-start the device.
> All these actions are already possible independently.
> When looking at ixgbe implementation, I see:
> ixgbevf_dev_stats_reset() which is not documented in the API
> rte_delay_ms(1000);
> do {} while
> It looks to be some hacks.
> If you really need some workarounds to handle some tricky situations, maybe
> that the API is not detailed enough.
Yes, you're right. Still something left. I'll add more detail.
>
> > But anyway I'm open for changing the name. Is the name process_reset_intr
> you prefer? Thanks.
>
> Not sure.
> If you really intend to add a generic reset, maybe rte_eth_dev_reset() is a good
> name. We just need more justification.
> After reading the doc, the user can understand it is just a wrapper of existing
> functions. But it appears in the code that it does more and can help in some
> situations.
I'll add more info. Thanks.
next prev parent reply other threads:[~2016-06-23 0:39 UTC|newest]
Thread overview: 72+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-06 5:40 [dpdk-dev] [PATCH 0/8] support reset of VF link Wenzhuo Lu
2016-06-06 5:40 ` [dpdk-dev] [PATCH 1/8] lib/librte_ether: support device reset Wenzhuo Lu
2016-06-06 5:40 ` [dpdk-dev] [PATCH 2/8] lib/librte_ether: defind RX/TX lock mode Wenzhuo Lu
2016-06-08 2:15 ` Stephen Hemminger
2016-06-08 7:34 ` Lu, Wenzhuo
2016-06-09 7:50 ` Olivier Matz
2016-06-12 5:25 ` Lu, Wenzhuo
2016-06-10 18:12 ` Stephen Hemminger
2016-06-12 5:27 ` Lu, Wenzhuo
2016-06-06 5:40 ` [dpdk-dev] [PATCH 3/8] ixgbe: RX/TX with lock on VF Wenzhuo Lu
2016-06-06 5:40 ` [dpdk-dev] [PATCH 4/8] ixgbe: implement device reset " Wenzhuo Lu
2016-06-06 5:40 ` [dpdk-dev] [PATCH 5/8] igb: RX/TX with lock " Wenzhuo Lu
2016-06-06 5:40 ` [dpdk-dev] [PATCH 6/8] igb: implement device reset " Wenzhuo Lu
2016-06-06 5:40 ` [dpdk-dev] [PATCH 7/8] i40e:RX/TX with lock " Wenzhuo Lu
2016-06-06 5:40 ` [dpdk-dev] [PATCH 8/8] i40e: implement device reset " Wenzhuo Lu
2016-06-15 3:03 ` [dpdk-dev] [PATCH v5 0/4] support reset of VF link Wenzhuo Lu
2016-06-15 3:03 ` [dpdk-dev] [PATCH v5 1/4] lib/librte_ether: support device reset Wenzhuo Lu
2016-06-16 15:31 ` Bruce Richardson
2016-06-16 15:36 ` Thomas Monjalon
2016-06-15 3:03 ` [dpdk-dev] [PATCH v5 2/4] ixgbe: implement device reset on VF Wenzhuo Lu
2016-06-15 3:03 ` [dpdk-dev] [PATCH v5 3/4] igb: " Wenzhuo Lu
2016-06-15 3:03 ` [dpdk-dev] [PATCH v5 4/4] i40e: " Wenzhuo Lu
2016-06-20 6:24 ` [dpdk-dev] [PATCH v6 0/4] support reset of VF link Wenzhuo Lu
2016-06-20 6:24 ` [dpdk-dev] [PATCH v6 1/4] lib/librte_ether: support device reset Wenzhuo Lu
2016-06-20 9:14 ` Jerin Jacob
2016-06-20 16:17 ` Stephen Hemminger
2016-06-21 3:51 ` Jerin Jacob
2016-06-21 6:14 ` Lu, Wenzhuo
2016-06-21 7:37 ` Jerin Jacob
2016-06-21 8:24 ` Lu, Wenzhuo
2016-06-21 8:55 ` Jerin Jacob
2016-06-21 9:26 ` Ananyev, Konstantin
2016-06-21 10:57 ` Jerin Jacob
2016-06-21 13:10 ` Ananyev, Konstantin
2016-06-21 13:30 ` Jerin Jacob
2016-06-21 14:03 ` Ananyev, Konstantin
2016-06-21 14:29 ` Jerin Jacob
2016-06-22 1:35 ` Lu, Wenzhuo
2016-06-22 2:37 ` Jerin Jacob
2016-06-22 3:32 ` Lu, Wenzhuo
2016-06-22 4:14 ` Jerin Jacob
2016-06-22 5:05 ` Lu, Wenzhuo
2016-06-22 6:10 ` Jerin Jacob
2016-06-22 6:42 ` Lu, Wenzhuo
2016-06-22 7:59 ` Jerin Jacob
2016-06-22 8:17 ` Thomas Monjalon
2016-06-22 8:25 ` Lu, Wenzhuo
2016-06-22 9:18 ` Thomas Monjalon
2016-06-22 11:06 ` Jerin Jacob
2016-06-23 0:45 ` Lu, Wenzhuo
2016-06-23 0:39 ` Lu, Wenzhuo [this message]
2016-06-21 0:51 ` Lu, Wenzhuo
2016-06-20 6:24 ` [dpdk-dev] [PATCH v6 2/4] ixgbe: implement device reset on VF Wenzhuo Lu
2016-06-20 6:24 ` [dpdk-dev] [PATCH v6 3/4] igb: " Wenzhuo Lu
2016-06-20 6:24 ` [dpdk-dev] [PATCH v6 4/4] i40e: " Wenzhuo Lu
2016-07-04 15:48 ` [dpdk-dev] [PATCH v6 0/4] support reset of VF link Luca Boccassi
2016-07-05 0:52 ` Lu, Wenzhuo
2016-07-05 9:52 ` Luca Boccassi
2016-07-06 0:45 ` Lu, Wenzhuo
2016-07-06 16:26 ` Luca Boccassi
[not found] ` <1467822182.32466.34.camel@brocade.com>
2016-07-07 1:09 ` Lu, Wenzhuo
2016-07-07 10:20 ` Luca Boccassi
2016-07-07 13:12 ` Lu, Wenzhuo
2016-07-07 16:19 ` Luca Boccassi
2016-07-08 0:14 ` Lu, Wenzhuo
2016-07-08 17:15 ` Luca Boccassi
2016-07-11 1:32 ` Lu, Wenzhuo
2016-07-11 12:02 ` Luca Boccassi
2016-07-11 15:43 ` Luca Boccassi
2016-07-12 1:19 ` Lu, Wenzhuo
2016-08-26 12:58 ` Luca Boccassi
2016-08-29 1:04 ` Lu, Wenzhuo
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