From: David Marchand <david.marchand@redhat.com>
To: Bruce Richardson <bruce.richardson@intel.com>
Cc: Thomas Monjalon <thomas@monjalon.net>,
"Zhang, RobinX" <robinx.zhang@intel.com>,
"Yigit, Ferruh" <ferruh.yigit@intel.com>, dev <dev@dpdk.org>,
"Zhang, Qi Z" <qi.z.zhang@intel.com>,
"Li, Xiaoyun" <xiaoyun.li@intel.com>,
"Singh, Aman Deep" <aman.deep.singh@intel.com>,
"Zhang, Yuying" <yuying.zhang@intel.com>,
"Guo, Junfeng" <junfeng.guo@intel.com>,
"Yang, SteveX" <stevex.yang@intel.com>,
Ciara Power <ciara.power@intel.com>
Subject: Re: [PATCH] app/testpmd: format dump information of module EEPROM
Date: Wed, 16 Feb 2022 11:15:34 +0100 [thread overview]
Message-ID: <CAJFAV8zWaeh0p40fFRQH+3FO3yUEu8dBPa805Owrn3Wo9k+pZA@mail.gmail.com> (raw)
In-Reply-To: <YgzLwe/zRSvZKn4N@bricha3-MOBL.ger.corp.intel.com>
On Wed, Feb 16, 2022 at 11:02 AM Bruce Richardson
<bruce.richardson@intel.com> wrote:
> On Wed, Feb 16, 2022 at 10:41:43AM +0100, David Marchand wrote:
> > On Wed, Feb 16, 2022 at 10:31 AM Bruce Richardson
> > <bruce.richardson@intel.com> wrote:
> > > > > I see that we have other telemetry callbacks for stats, link status
> > > > > which might already have the issue.
> > > >
> > > > You mean there is no lock protection? Neither in the API, nor in
> > > > telemetry?
> > > >
> > > For reporting out stats or link status, I'm not sure a lock should ever
> > > be needed since both are just read-only operations. Therefore, I don't
> > > believe we have a general issue here.
> >
> > Ok, if you are sure about this for all drivers for stats and link status,
> > you can discard my comment.
> >
> No, I'm not 100% sure about it, but if any driver has issues with multiple
> threads reading stats simultaneously I would hope that that should be
> resolved at the driver level. Normally, one would expect read-only
> operations to be implicitly multi-thread safe, and I also see that the
> documentation on e.g. rte_eth_stats_get() makes no reference to needing
> locks or not being thread-safe.
I agree, resolving at the driver level is better.
--
David Marchand
next prev parent reply other threads:[~2022-02-16 10:15 UTC|newest]
Thread overview: 77+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-15 10:18 [PATCH] app/testpmd: format dump information of module EEPROM Robin Zhang
2022-02-15 13:28 ` Ferruh Yigit
2022-02-15 15:07 ` Thomas Monjalon
2022-02-16 2:26 ` Zhang, RobinX
2022-02-16 8:03 ` David Marchand
2022-02-16 8:45 ` Thomas Monjalon
2022-02-16 9:30 ` Bruce Richardson
2022-02-16 9:41 ` David Marchand
2022-02-16 10:02 ` Bruce Richardson
2022-02-16 10:15 ` David Marchand [this message]
2022-04-08 10:23 ` [PATCH v2] common/sff_module: add telemetry command to dump " Robin Zhang
2022-04-08 10:33 ` Bruce Richardson
2022-04-08 10:55 ` Zhang, RobinX
2022-04-08 11:00 ` Bruce Richardson
2022-04-08 11:20 ` Zhang, RobinX
2022-04-08 11:26 ` Bruce Richardson
2022-04-11 8:13 ` Zhang, RobinX
2022-04-11 9:13 ` Bruce Richardson
2022-04-13 12:13 ` Thomas Monjalon
2022-04-14 7:41 ` David Marchand
2022-04-20 7:00 ` [PATCH v3 0/5] add telemetry command for show " Robin Zhang
2022-04-20 7:00 ` [PATCH v3 1/5] ethdev: add telemetry command for " Robin Zhang
2022-04-20 9:16 ` Andrew Rybchenko
2022-04-20 7:00 ` [PATCH v3 2/5] ethdev: common utilities for different SFF specs Robin Zhang
2022-04-20 7:00 ` [PATCH v3 3/5] ethdev: format module EEPROM for SFF-8079 Robin Zhang
2022-04-20 7:00 ` [PATCH v3 4/5] ethdev: format module EEPROM for SFF-8472 Robin Zhang
2022-04-20 7:00 ` [PATCH v3 5/5] ethdev: format module EEPROM for SFF-8636 Robin Zhang
2022-04-20 8:49 ` [PATCH v3 0/5] add telemetry command for show module EEPROM Morten Brørup
2022-04-25 5:34 ` [PATCH v4 " Robin Zhang
2022-04-25 5:34 ` [PATCH v4 1/5] ethdev: add telemetry command for " Robin Zhang
2022-04-25 5:34 ` [PATCH v4 2/5] ethdev: common utilities for different SFF specs Robin Zhang
2022-04-25 5:34 ` [PATCH v4 3/5] ethdev: format module EEPROM for SFF-8079 Robin Zhang
2022-04-25 5:34 ` [PATCH v4 4/5] ethdev: format module EEPROM for SFF-8472 Robin Zhang
2022-04-25 5:34 ` [PATCH v4 5/5] ethdev: format module EEPROM for SFF-8636 Robin Zhang
2022-04-26 2:43 ` [PATCH v5 0/5] add telemetry command for show module EEPROM Robin Zhang
2022-04-26 2:43 ` [PATCH v5 1/5] ethdev: add telemetry command for " Robin Zhang
2022-05-04 10:16 ` Andrew Rybchenko
2022-04-26 2:43 ` [PATCH v5 2/5] ethdev: common utilities for different SFF specs Robin Zhang
2022-04-26 2:43 ` [PATCH v5 3/5] ethdev: format module EEPROM for SFF-8079 Robin Zhang
2022-04-26 2:43 ` [PATCH v5 4/5] ethdev: format module EEPROM for SFF-8472 Robin Zhang
2022-04-26 2:43 ` [PATCH v5 5/5] ethdev: format module EEPROM for SFF-8636 Robin Zhang
2022-05-04 8:13 ` [PATCH v5 0/5] add telemetry command for show module EEPROM Andrew Rybchenko
2022-05-11 2:14 ` [PATCH v6 " Robin Zhang
2022-05-11 2:14 ` [PATCH v6 1/5] ethdev: add telemetry command for " Robin Zhang
2022-05-11 2:14 ` [PATCH v6 2/5] ethdev: common utilities for different SFF specs Robin Zhang
2022-05-11 2:14 ` [PATCH v6 3/5] ethdev: format module EEPROM for SFF-8079 Robin Zhang
2022-05-11 2:14 ` [PATCH v6 4/5] ethdev: format module EEPROM for SFF-8472 Robin Zhang
2022-05-19 8:33 ` Andrew Rybchenko
2022-05-11 2:14 ` [PATCH v6 5/5] ethdev: format module EEPROM for SFF-8636 Robin Zhang
2022-05-24 6:24 ` [PATCH v7 0/5] add telemetry command for show module EEPROM Robin Zhang
2022-05-24 6:24 ` [PATCH v7 1/5] ethdev: add telemetry command for " Robin Zhang
2022-05-24 6:24 ` [PATCH v7 2/5] ethdev: common utilities for different SFF specs Robin Zhang
2022-05-24 6:24 ` [PATCH v7 3/5] ethdev: format module EEPROM for SFF-8079 Robin Zhang
2022-05-24 6:24 ` [PATCH v7 4/5] ethdev: format module EEPROM for SFF-8472 Robin Zhang
2022-05-24 6:24 ` [PATCH v7 5/5] ethdev: format module EEPROM for SFF-8636 Robin Zhang
2022-05-24 9:03 ` David Marchand
2022-05-25 2:43 ` Zhang, RobinX
2022-05-25 3:14 ` [PATCH v8 0/5] add telemetry command for show module EEPROM Robin Zhang
2022-05-25 3:14 ` [PATCH v8 1/5] ethdev: add telemetry command for " Robin Zhang
2022-05-25 9:24 ` Andrew Rybchenko
2022-05-25 3:14 ` [PATCH v8 2/5] ethdev: common utilities for different SFF specs Robin Zhang
2022-05-25 8:51 ` Andrew Rybchenko
2022-05-25 9:40 ` Andrew Rybchenko
2022-05-25 3:14 ` [PATCH v8 3/5] ethdev: format module EEPROM for SFF-8079 Robin Zhang
2022-05-25 9:55 ` Andrew Rybchenko
2022-05-25 3:14 ` [PATCH v8 4/5] ethdev: format module EEPROM for SFF-8472 Robin Zhang
2022-05-25 11:58 ` Andrew Rybchenko
2022-05-25 3:14 ` [PATCH v8 5/5] ethdev: format module EEPROM for SFF-8636 Robin Zhang
2022-05-25 9:01 ` Andrew Rybchenko
2022-05-25 12:01 ` Andrew Rybchenko
2022-05-26 7:32 ` [PATCH v9 0/5] add telemetry command for show module EEPROM Robin Zhang
2022-05-26 7:32 ` [PATCH v9 1/5] ethdev: add telemetry command for " Robin Zhang
2022-05-26 7:32 ` [PATCH v9 2/5] ethdev: add common code for different SFF specs Robin Zhang
2022-05-26 7:32 ` [PATCH v9 3/5] ethdev: support SFF-8079 module information telemetry Robin Zhang
2022-05-26 7:32 ` [PATCH v9 4/5] ethdev: support SFF-8472 " Robin Zhang
2022-05-26 7:32 ` [PATCH v9 5/5] ethdev: support SFF-8636 " Robin Zhang
2022-05-31 14:43 ` [PATCH v9 0/5] add telemetry command for show module EEPROM Andrew Rybchenko
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