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From: Thomas Monjalon <thomas@monjalon.net>
To: Ferruh Yigit <ferruh.yigit@intel.com>
Cc: dev@dpdk.org, Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>,
	Steven Webster <steven.webster@windriver.com>,
	Matt Peters <matt.peters@windriver.com>,
	Somalapuram Amaranath <asomalap@amd.com>,
	Rasesh Mody <rmody@marvell.com>,
	Shahed Shaikh <shshaikh@marvell.com>,
	Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>,
	Hemant Agrawal <hemant.agrawal@nxp.com>,
	Sachin Saxena <sachin.saxena@oss.nxp.com>,
	John Daley <johndale@cisco.com>,
	Hyong Youb Kim <hyonkim@cisco.com>,
	Qiming Yang <qiming.yang@intel.com>,
	Qi Zhang <qi.z.zhang@intel.com>,
	Alfredo Cardigliano <cardigliano@ntop.org>,
	Rosen Xu <rosen.xu@intel.com>, Matan Azrad <matan@nvidia.com>,
	Shahaf Shuler <shahafs@nvidia.com>,
	Viacheslav Ovsiienko <viacheslavo@nvidia.com>,
	Liron Himi <lironh@marvell.com>,
	Heinrich Kuhn <heinrich.kuhn@netronome.com>,
	Harman Kalra <hkalra@marvell.com>,
	Jerin Jacob <jerinj@marvell.com>,
	Nithin Dabilpuram <ndabilpuram@marvell.com>,
	Kiran Kumar K <kirankumark@marvell.com>
Subject: Re: [dpdk-dev] [PATCH v5 1/3] ethdev: remove forcing stopped state upon close
Date: Tue, 13 Oct 2020 19:59:21 +0200	[thread overview]
Message-ID: <10144299.NCpPIoQQBk@thomas> (raw)
In-Reply-To: <66feb9dc-d08c-e01b-40c6-05dca3856c2f@intel.com>

13/10/2020 19:54, Ferruh Yigit:
> On 10/13/2020 1:51 PM, Thomas Monjalon wrote:
> > 13/10/2020 14:45, Ferruh Yigit:
> >> On 10/13/2020 11:06 AM, Thomas Monjalon wrote:
> >>> When closing a port, it is supposed to be already stopped,
> >>> and marked as such with "dev_started" state zeroed by the stop API.
> >>>
> >>> Resetting "dev_started" before calling the driver close operation
> >>> was hiding the case of not properly stopped port being closed.
> >>> The flag "dev_started" is not changed anymore in "rte_eth_dev_close()".
> >>>
> >>> In case the "dev_stop" function is called from "dev_close",
> >>> bypassing "rte_eth_dev_stop()" API,
> >>> the "dev_started" state must be explicitly reset in the PMD
> >>> in order to keep the same behaviour.
> >>>
> >>> Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
> >>> Acked-by: Stephen Hemminger <stephen@networkplumber.org>
> >>> Reviewed-by: Andrew Rybchenko <arybchenko@solarflare.com>
> > [...]
> >> Following non-virtual PMDs doesn't call 'dev_stop()' from 'dev_close()',
> >> maintainers of the PMDs cc'ed.
> >>
> >> avp
> >> axgbe
> >> bnx2x
> >> cxgbe
> >> dpaa2
> >> enic
> >> ice_dcf
> >> ionic
> >> ipn3ke
> >> mlx4
> >> mlx5
> >> mvpp2
> >> nfp
> >> octeontx
> >> octeontx2
> >> sfc
> >>
> >> Can you please double check for your driver:
> >>
> >> 1) Device stopped properly before it has been closed?
> >>
> >> 2) The device stopped state ('dev->data->dev_started') is correct if device
> >> closed without explicitly stopped first.
> > 
> > The application is supposed to call stop before close,
> > so I don't know what has to be checked.
> > The automatic stop in close is an extra feature per PMD choice.
> > 
> 
> A device can be hot-removed without stop, that is why I was thinking 'close()' 
> should stop the device (if it is not already).
> 
> Even current 'rte_eth_dev_close()' API doesn't check if the port stopped or not.
> 
> If application does stop -> close/remove in order, that would work, but for the 
> case it didn't, PMD ensuring the device stopped before close is safer.

Yes that's probably a case which not well tested.




  reply	other threads:[~2020-10-13 17:59 UTC|newest]

Thread overview: 201+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-13 22:06 [dpdk-dev] [PATCH 00/20] cleanup ethdev close operation Thomas Monjalon
2020-09-13 22:06 ` [dpdk-dev] [PATCH 01/20] ethdev: reset device and interrupt pointers on release Thomas Monjalon
2020-09-23 16:41   ` Ferruh Yigit
2020-09-13 22:06 ` [dpdk-dev] [PATCH 02/20] ethdev: allow drivers to return error on close Thomas Monjalon
2020-09-23 16:41   ` Ferruh Yigit
2020-09-23 20:53     ` Thomas Monjalon
2020-09-23 21:02       ` Stephen Hemminger
2020-09-23 21:06         ` Thomas Monjalon
2020-09-23 21:47           ` Stephen Hemminger
2020-09-23 21:52             ` Thomas Monjalon
2020-09-23 22:02               ` Stephen Hemminger
2020-09-23 22:35                 ` Thomas Monjalon
2020-09-24  9:12                   ` Bruce Richardson
2020-09-24 10:07                     ` Thomas Monjalon
2020-09-24 12:09                       ` Ferruh Yigit
2020-09-24 14:48                     ` Stephen Hemminger
2020-09-13 22:06 ` [dpdk-dev] [PATCH 03/20] net/af_packet: release port upon close Thomas Monjalon
2020-09-23 16:41   ` Ferruh Yigit
2020-09-13 22:06 ` [dpdk-dev] [PATCH 04/20] net/atlantic: " Thomas Monjalon
2020-09-16 15:14   ` Igor Russkikh
2020-09-23 16:42   ` Ferruh Yigit
2020-09-23 20:50     ` Thomas Monjalon
2020-09-13 22:06 ` [dpdk-dev] [PATCH 05/20] net/axgbe: " Thomas Monjalon
2020-09-13 22:06 ` [dpdk-dev] [PATCH 06/20] net/bonding: " Thomas Monjalon
2020-09-13 22:06 ` [dpdk-dev] [PATCH 07/20] net/failsafe: " Thomas Monjalon
2020-09-23 21:24   ` Thomas Monjalon
2020-09-13 22:06 ` [dpdk-dev] [PATCH 08/20] net/iavf: " Thomas Monjalon
2020-09-13 22:07 ` [dpdk-dev] [PATCH 09/20] net/mlx4: " Thomas Monjalon
2020-09-13 22:07 ` [dpdk-dev] [PATCH 10/20] net/null: " Thomas Monjalon
2020-09-23 16:44   ` Ferruh Yigit
2020-09-23 20:47     ` Thomas Monjalon
2020-09-24 21:58       ` Thomas Monjalon
2020-09-25  8:52         ` Ferruh Yigit
2020-09-25 13:13           ` Thomas Monjalon
2020-09-13 22:07 ` [dpdk-dev] [PATCH 11/20] net/octeontx: " Thomas Monjalon
2020-09-13 22:07 ` [dpdk-dev] [PATCH 12/20] net/pcap: " Thomas Monjalon
2020-09-23 16:44   ` Ferruh Yigit
2020-09-23 20:44     ` Thomas Monjalon
2020-09-24 11:56       ` Ferruh Yigit
2020-09-13 22:07 ` [dpdk-dev] [PATCH 13/20] net/ring: " Thomas Monjalon
2020-09-14  8:51   ` Bruce Richardson
2020-09-13 22:07 ` [dpdk-dev] [PATCH 14/20] net/softnic: " Thomas Monjalon
2020-09-14 15:21   ` Dumitrescu, Cristian
2020-09-13 22:07 ` [dpdk-dev] [PATCH 15/20] net/tap: " Thomas Monjalon
2020-09-13 22:07 ` [dpdk-dev] [PATCH 16/20] ethdev: remove old close behaviour Thomas Monjalon
2020-09-23 16:44   ` Ferruh Yigit
2020-09-23 20:41     ` Thomas Monjalon
2020-09-24 12:00       ` Ferruh Yigit
2020-09-25  4:31     ` Rasesh Mody
2020-09-13 22:07 ` [dpdk-dev] [PATCH 17/20] drivers/net: accept removing device without any port Thomas Monjalon
2020-09-23 16:45   ` Ferruh Yigit
2020-09-27  6:25   ` Xu, Rosen
2020-09-13 22:07 ` [dpdk-dev] [PATCH 18/20] drivers/net: remove redundant MAC addresses freeing Thomas Monjalon
2020-09-23 16:45   ` Ferruh Yigit
2020-09-13 22:07 ` [dpdk-dev] [PATCH 19/20] app/testpmd: reset port status on close notification Thomas Monjalon
2020-09-23 16:45   ` Ferruh Yigit
2020-09-23 20:32     ` Thomas Monjalon
2020-09-24 12:07       ` Ferruh Yigit
2020-09-24 12:17         ` Thomas Monjalon
2020-09-24 13:06           ` Ferruh Yigit
2020-09-13 22:07 ` [dpdk-dev] [PATCH 20/20] app/testpmd: align behaviour of multi-port detach Thomas Monjalon
2020-09-23 16:44 ` [dpdk-dev] [PATCH 00/20] cleanup ethdev close operation Ferruh Yigit
2020-09-27 23:42 ` [dpdk-dev] [PATCH v2 00/25] " Thomas Monjalon
2020-09-27 23:42   ` [dpdk-dev] [PATCH v2 01/25] ethdev: reset device and interrupt pointers on release Thomas Monjalon
2020-09-27 23:42   ` [dpdk-dev] [PATCH v2 02/25] ethdev: allow drivers to return error on close Thomas Monjalon
2020-09-28  0:46     ` Xu, Rosen
2020-09-28  9:51     ` Sachin Saxena (OSS)
2020-09-28 18:26     ` [dpdk-dev] [EXT] " Liron Himi
2020-09-27 23:42   ` [dpdk-dev] [PATCH v2 03/25] net/af_packet: release port upon close Thomas Monjalon
2020-09-27 23:42   ` [dpdk-dev] [PATCH v2 04/25] net/atlantic: " Thomas Monjalon
2020-09-27 23:42   ` [dpdk-dev] [PATCH v2 05/25] net/axgbe: " Thomas Monjalon
2020-09-27 23:42   ` [dpdk-dev] [PATCH v2 06/25] net/bnx2x: " Thomas Monjalon
2020-09-27 23:42   ` [dpdk-dev] [PATCH v2 07/25] net/bonding: " Thomas Monjalon
2020-09-27 23:42   ` [dpdk-dev] [PATCH v2 08/25] net/failsafe: " Thomas Monjalon
2020-09-27 23:42   ` [dpdk-dev] [PATCH v2 09/25] net/mlx4: " Thomas Monjalon
2020-09-27 23:42   ` [dpdk-dev] [PATCH v2 10/25] net/null: " Thomas Monjalon
2020-09-27 23:42   ` [dpdk-dev] [PATCH v2 11/25] net/octeontx: " Thomas Monjalon
2020-09-27 23:42   ` [dpdk-dev] [PATCH v2 12/25] net/pcap: " Thomas Monjalon
2020-09-27 23:42   ` [dpdk-dev] [PATCH v2 13/25] net/qede: " Thomas Monjalon
2020-09-27 23:42   ` [dpdk-dev] [PATCH v2 14/25] net/ring: " Thomas Monjalon
2020-09-27 23:42   ` [dpdk-dev] [PATCH v2 15/25] net/softnic: " Thomas Monjalon
2020-09-27 23:42   ` [dpdk-dev] [PATCH v2 16/25] net/tap: " Thomas Monjalon
2020-09-27 23:42   ` [dpdk-dev] [PATCH v2 17/25] ethdev: remove old close behaviour Thomas Monjalon
2020-09-28 18:25     ` [dpdk-dev] [EXT] " Liron Himi
2020-09-27 23:42   ` [dpdk-dev] [PATCH v2 18/25] drivers/net: accept removing device without any port Thomas Monjalon
2020-09-28  0:47     ` Xu, Rosen
2020-09-28  9:54     ` Sachin Saxena (OSS)
2020-09-27 23:42   ` [dpdk-dev] [PATCH v2 19/25] drivers/net: check process type in close operation Thomas Monjalon
2020-09-27 23:52     ` Thomas Monjalon
2020-09-28  0:50     ` Xu, Rosen
2020-09-28  9:55     ` Sachin Saxena (OSS)
2020-09-28 14:57       ` Ajit Khaparde
2020-09-28 18:25     ` [dpdk-dev] [EXT] " Liron Himi
2020-09-28 18:51     ` [dpdk-dev] " Stephen Hemminger
2020-09-28 20:57       ` Thomas Monjalon
2020-09-27 23:42   ` [dpdk-dev] [PATCH v2 20/25] drivers/net: remove redundant MAC addresses freeing Thomas Monjalon
2020-09-27 23:42   ` [dpdk-dev] [PATCH v2 21/25] app/testpmd: reset port status on close notification Thomas Monjalon
2020-09-27 23:42   ` [dpdk-dev] [PATCH v2 22/25] app/testpmd: align behaviour of multi-port detach Thomas Monjalon
2020-09-27 23:42   ` [dpdk-dev] [PATCH v2 23/25] ethdev: remove forcing stopped state upon close Thomas Monjalon
2020-09-27 23:42   ` [dpdk-dev] [PATCH v2 24/25] ethdev: reset all when releasing a port Thomas Monjalon
2020-09-27 23:42   ` [dpdk-dev] [PATCH v2 25/25] ethdev: allow close function to return an error Thomas Monjalon
2020-09-28 18:24     ` [dpdk-dev] [EXT] " Liron Himi
2020-09-28 23:14 ` [dpdk-dev] [PATCH v3 00/29] cleanup ethdev close operation Thomas Monjalon
2020-09-28 23:14   ` [dpdk-dev] [PATCH v3 01/29] ethdev: reset device and interrupt pointers on release Thomas Monjalon
2020-09-29 10:52     ` Andrew Rybchenko
2020-09-28 23:14   ` [dpdk-dev] [PATCH v3 02/29] ethdev: allow drivers to return error on close Thomas Monjalon
2020-09-29  2:16     ` Wang, Haiyue
2020-09-29  5:56     ` Guo, Jia
2020-09-29 10:53     ` Andrew Rybchenko
2020-09-30 12:12       ` Ferruh Yigit
2020-09-28 23:14   ` [dpdk-dev] [PATCH v3 03/29] net/af_packet: release port upon close Thomas Monjalon
2020-09-28 23:14   ` [dpdk-dev] [PATCH v3 04/29] net/atlantic: " Thomas Monjalon
2020-09-28 23:14   ` [dpdk-dev] [PATCH v3 05/29] net/axgbe: " Thomas Monjalon
2020-09-28 23:14   ` [dpdk-dev] [PATCH v3 06/29] net/bnx2x: " Thomas Monjalon
2020-09-28 23:14   ` [dpdk-dev] [PATCH v3 07/29] net/bonding: " Thomas Monjalon
2020-09-28 23:14   ` [dpdk-dev] [PATCH v3 08/29] net/dpaa: " Thomas Monjalon
2020-09-29  4:53     ` Hemant Agrawal
2020-09-28 23:14   ` [dpdk-dev] [PATCH v3 09/29] net/dpaa2: " Thomas Monjalon
2020-09-29  4:53     ` Hemant Agrawal
2020-09-28 23:14   ` [dpdk-dev] [PATCH v3 10/29] net/enetc: " Thomas Monjalon
2020-09-28 23:14   ` [dpdk-dev] [PATCH v3 11/29] net/failsafe: " Thomas Monjalon
2020-10-05 10:19     ` Gaëtan Rivet
2020-09-28 23:14   ` [dpdk-dev] [PATCH v3 12/29] net/mlx4: " Thomas Monjalon
2020-09-28 23:14   ` [dpdk-dev] [PATCH v3 13/29] net/null: " Thomas Monjalon
2020-09-29 16:47     ` Ferruh Yigit
2020-09-28 23:14   ` [dpdk-dev] [PATCH v3 14/29] net/octeontx: " Thomas Monjalon
2020-09-28 23:14   ` [dpdk-dev] [PATCH v3 15/29] net/pcap: " Thomas Monjalon
2020-09-29 16:49     ` Ferruh Yigit
2020-09-28 23:14   ` [dpdk-dev] [PATCH v3 16/29] net/pfe: " Thomas Monjalon
2020-09-28 23:14   ` [dpdk-dev] [PATCH v3 17/29] net/qede: " Thomas Monjalon
2020-09-28 23:14   ` [dpdk-dev] [PATCH v3 18/29] net/ring: " Thomas Monjalon
2020-09-28 23:14   ` [dpdk-dev] [PATCH v3 19/29] net/softnic: " Thomas Monjalon
2020-09-28 23:14   ` [dpdk-dev] [PATCH v3 20/29] net/tap: " Thomas Monjalon
2020-09-30  8:34     ` wangyunjian
2020-09-28 23:14   ` [dpdk-dev] [PATCH v3 21/29] ethdev: remove old close behaviour Thomas Monjalon
2020-09-29  2:27     ` Wang, Haiyue
2020-09-29  5:55     ` Guo, Jia
2020-09-29 10:38     ` Andrew Rybchenko
2020-09-29 17:08     ` Ferruh Yigit
2020-09-28 23:14   ` [dpdk-dev] [PATCH v3 22/29] drivers/net: accept removing device without any port Thomas Monjalon
2020-09-28 23:14   ` [dpdk-dev] [PATCH v3 23/29] drivers/net: check process type in close operation Thomas Monjalon
2020-09-29  2:39     ` Wang, Haiyue
2020-09-29  5:53     ` Guo, Jia
2020-09-29 10:42     ` Andrew Rybchenko
2020-09-28 23:14   ` [dpdk-dev] [PATCH v3 24/29] drivers/net: remove redundant MAC addresses freeing Thomas Monjalon
2020-09-28 23:14   ` [dpdk-dev] [PATCH v3 25/29] app/testpmd: reset port status on close notification Thomas Monjalon
2020-09-30 12:15     ` Ferruh Yigit
2020-09-28 23:14   ` [dpdk-dev] [PATCH v3 26/29] app/testpmd: align behaviour of multi-port detach Thomas Monjalon
2020-09-30 12:17     ` Ferruh Yigit
2020-09-28 23:14   ` [dpdk-dev] [PATCH v3 27/29] ethdev: remove forcing stopped state upon close Thomas Monjalon
2020-09-29 10:44     ` Andrew Rybchenko
2020-09-29 16:01     ` Ferruh Yigit
2020-09-29 16:06       ` Thomas Monjalon
2020-09-29 16:39         ` Ferruh Yigit
2020-09-28 23:14   ` [dpdk-dev] [PATCH v3 28/29] ethdev: reset all when releasing a port Thomas Monjalon
2020-09-29  2:34     ` Wang, Haiyue
2020-09-29  5:51     ` Guo, Jia
2020-09-29 10:26     ` Maxime Coquelin
2020-09-29 10:36       ` Thomas Monjalon
2020-09-29 11:58         ` Wang, Haiyue
2020-09-29 15:50           ` Ferruh Yigit
2020-09-29 16:02             ` Thomas Monjalon
2020-09-29 16:35               ` Ferruh Yigit
2020-09-30 12:17                 ` Ferruh Yigit
2020-09-29 10:50     ` Andrew Rybchenko
2020-09-28 23:14   ` [dpdk-dev] [PATCH v3 29/29] ethdev: allow close function to return an error Thomas Monjalon
2020-09-29 11:05     ` Andrew Rybchenko
2020-09-29 11:47       ` Thomas Monjalon
2020-09-29 11:54         ` Andrew Rybchenko
2020-09-28 23:33   ` [dpdk-dev] [PATCH v3 00/29] cleanup ethdev close operation Stephen Hemminger
2020-09-30 12:22   ` Ferruh Yigit
2020-10-05 17:08 ` [dpdk-dev] [PATCH v4 0/3] " Thomas Monjalon
2020-10-05 17:08   ` [dpdk-dev] [PATCH v4 1/3] ethdev: remove forcing stopped state upon close Thomas Monjalon
2020-10-05 17:08   ` [dpdk-dev] [PATCH v4 2/3] ethdev: reset all when releasing a port Thomas Monjalon
2020-10-05 17:08   ` [dpdk-dev] [PATCH v4 3/3] ethdev: allow close function to return an error Thomas Monjalon
2020-10-06  9:43     ` Ferruh Yigit
2020-10-06 10:57       ` Thomas Monjalon
2020-10-13  8:40         ` Andrew Rybchenko
2020-10-13  8:55           ` Thomas Monjalon
2020-10-13  9:33             ` Ferruh Yigit
2020-10-13 10:06 ` [dpdk-dev] [PATCH v5 0/3] cleanup ethdev close operation Thomas Monjalon
2020-10-13 10:06   ` [dpdk-dev] [PATCH v5 1/3] ethdev: remove forcing stopped state upon close Thomas Monjalon
2020-10-13 12:36     ` Ferruh Yigit
2020-10-13 12:49       ` Thomas Monjalon
2020-10-13 12:45     ` Ferruh Yigit
2020-10-13 12:51       ` Thomas Monjalon
2020-10-13 17:54         ` Ferruh Yigit
2020-10-13 17:59           ` Thomas Monjalon [this message]
2020-10-13 10:06   ` [dpdk-dev] [PATCH v5 2/3] ethdev: reset all when releasing a port Thomas Monjalon
2020-10-13 13:10     ` Ferruh Yigit
2020-10-13 10:06   ` [dpdk-dev] [PATCH v5 3/3] ethdev: allow close function to return an error Thomas Monjalon
2020-10-13 10:41     ` Andrew Rybchenko
2020-10-13 10:43       ` Thomas Monjalon
2020-10-13 13:10     ` Ferruh Yigit
2020-10-16 13:32 ` [dpdk-dev] [PATCH v6 0/3] cleanup ethdev close operation Thomas Monjalon
2020-10-16 13:32   ` [dpdk-dev] [PATCH v6 1/3] ethdev: remove forcing stopped state upon close Thomas Monjalon
2020-10-16 13:32   ` [dpdk-dev] [PATCH v6 2/3] ethdev: reset all when releasing a port Thomas Monjalon
2020-10-16 15:21     ` Ajit Khaparde
2020-10-16 13:32   ` [dpdk-dev] [PATCH v6 3/3] ethdev: allow close function to return an error Thomas Monjalon
2020-10-16 17:55   ` [dpdk-dev] [PATCH v6 0/3] cleanup ethdev close operation Ferruh Yigit
2020-10-20 12:24     ` Bruce Richardson

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