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From: Thomas Monjalon <thomas.monjalon@6wind.com>
To: "Lu, Wenzhuo" <wenzhuo.lu@intel.com>,
	Jerin Jacob <jerin.jacob@caviumnetworks.com>
Cc: 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: Wed, 22 Jun 2016 11:18:21 +0200	[thread overview]
Message-ID: <6984459.KfxJSr4bsX@xps13> (raw)
In-Reply-To: <6A0DE07E22DDAD4C9103DF62FEBC09090348995A@shsmsx102.ccr.corp.intel.com>

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?
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.

> 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.

  reply	other threads:[~2016-06-22  9:18 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 [this message]
2016-06-22 11:06                                                     ` Jerin Jacob
2016-06-23  0:45                                                       ` Lu, Wenzhuo
2016-06-23  0:39                                                     ` Lu, Wenzhuo
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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