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From: Jakub Kicinski <kuba@kernel.org>
To: Johannes Berg <johannes@sipsolutions.net>
Cc: Luis Chamberlain <mcgrof@kernel.org>,
	Steve deRosier <derosier@gmail.com>,
	Ben Greear <greearb@candelatech.com>,
	jeyu@kernel.org, akpm@linux-foundation.org, arnd@arndb.de,
	rostedt@goodmis.org, mingo@redhat.com, aquini@redhat.com,
	cai@lca.pw, dyoung@redhat.com, bhe@redhat.com,
	peterz@infradead.org, tglx@linutronix.de, gpiccoli@canonical.com,
	pmladek@suse.com, Takashi Iwai <tiwai@suse.de>,
	schlad@suse.de, andriy.shevchenko@linux.intel.com,
	keescook@chromium.org, daniel.vetter@ffwll.ch, will@kernel.org,
	mchehab+samsung@kernel.org, Kalle Valo <kvalo@codeaurora.org>,
	"David S. Miller" <davem@davemloft.net>,
	Network Development <netdev@vger.kernel.org>,
	LKML <linux-kernel@vger.kernel.org>,
	linux-wireless <linux-wireless@vger.kernel.org>,
	ath10k@lists.infradead.org
Subject: Re: [PATCH v2 12/15] ath10k: use new module_firmware_crashed()
Date: Mon, 18 May 2020 13:35:21 -0700	[thread overview]
Message-ID: <20200518133521.6052042e@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com> (raw)
In-Reply-To: <8d7a3bed242ac9d3ec55a4c97e008081230f1f6d.camel@sipsolutions.net>

On Mon, 18 May 2020 22:29:53 +0200 Johannes Berg wrote:
> On Mon, 2020-05-18 at 13:28 -0700, Jakub Kicinski wrote:
> > On Mon, 18 May 2020 21:25:09 +0200 Johannes Berg wrote:  
> > > It's pretty clear, but even then, first of all I doubt this is the case
> > > for many of the places that you've sprinkled the annotation on, and
> > > secondly it actually hides useful information.
> > > 
> > > Regardless of the support issue, I think this hiding of information is
> > > also problematic.
> > > 
> > > I really think we'd all be better off if you just made a sysfs file (I
> > > mistyped debugfs in some other email, sorry, apparently you didn't see
> > > the correction in time) that listed which device(s) crashed and how many
> > > times. That would actually be useful. Because honestly, if a random
> > > device crashed for some random reason, that's pretty much a non-event.
> > > If it keeps happening, then we might even want to know about it.  
> > 
> > Johannes - have you seen devlink health? I think we should just use
> > that interface, since it supports all the things you're requesting,
> > rather than duplicate it in sysfs.  
> 
> I haven't, and I'm glad to hear that's there, sounds good!
> 
> I suspect that Luis wants something more generic though, that isn't just
> applicable to netdevices, unless devlink grew some kind of non-netdev
> stuff while I wasn't looking? :)

It's intended to be a generic netlink channel for configuring devices.

All the firmware-related interfaces have no dependencies on netdevs,
in fact that's one of the reasons we moved to devlink - we don't want
to hold rtnl lock just for talking to device firmware.

  reply	other threads:[~2020-05-18 20:35 UTC|newest]

Thread overview: 81+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-15 21:28 [PATCH v2 00/15] net: taint when the device driver firmware crashes Luis Chamberlain
2020-05-15 21:28 ` [PATCH v2 01/15] taint: add module firmware crash taint support Luis Chamberlain
2020-05-16  4:03   ` Rafael Aquini
2020-05-19 16:42   ` Jessica Yu
2020-05-22  5:17     ` Luis Chamberlain
2020-05-15 21:28 ` [PATCH v2 02/15] ethernet/839: use new module_firmware_crashed() Luis Chamberlain
2020-05-16  4:04   ` Rafael Aquini
2020-05-15 21:28 ` [PATCH v2 03/15] bnx2x: " Luis Chamberlain
2020-05-16  4:05   ` Rafael Aquini
2020-05-15 21:28 ` [PATCH v2 04/15] bnxt: " Luis Chamberlain
2020-05-16  4:06   ` Rafael Aquini
2020-05-16  5:14   ` Vasundhara Volam
2020-05-15 21:28 ` [PATCH v2 05/15] bna: " Luis Chamberlain
2020-05-16  4:07   ` Rafael Aquini
2020-05-15 21:28 ` [PATCH v2 06/15] liquidio: " Luis Chamberlain
2020-05-16  4:07   ` Rafael Aquini
2020-05-15 21:28 ` [PATCH v2 07/15] cxgb4: " Luis Chamberlain
2020-05-16  4:09   ` Rafael Aquini
2020-05-15 21:28 ` [PATCH v2 08/15] ehea: " Luis Chamberlain
2020-05-16  4:09   ` Rafael Aquini
2020-05-15 21:28 ` [PATCH v2 09/15] qed: " Luis Chamberlain
2020-05-16  4:10   ` Rafael Aquini
2020-05-15 21:28 ` [PATCH v2 10/15] soc: qcom: ipa: " Luis Chamberlain
2020-05-16  4:10   ` Rafael Aquini
2020-05-19 22:34   ` Alex Elder
2020-05-22  5:28     ` Luis Chamberlain
2020-05-22 20:52       ` Alex Elder
2020-05-22 21:53         ` Luis Chamberlain
2020-05-15 21:28 ` [PATCH v2 11/15] wimax/i2400m: " Luis Chamberlain
2020-05-16  4:11   ` Rafael Aquini
2020-05-15 21:28 ` [PATCH v2 12/15] ath10k: " Luis Chamberlain
2020-05-16  4:11   ` Rafael Aquini
2020-05-16 13:24   ` Johannes Berg
2020-05-16 13:50     ` Johannes Berg
2020-05-18 16:56       ` Luis Chamberlain
2020-05-19  1:23       ` Brian Norris
2020-05-19 14:02         ` Luis Chamberlain
2020-05-20  0:47           ` Brian Norris
2020-05-20  5:37             ` Emmanuel Grumbach
2020-05-20  8:32               ` Andy Shevchenko
2020-05-21 19:01               ` Brian Norris
2020-05-22  5:12                 ` Emmanuel Grumbach
2020-05-22  5:23                   ` Luis Chamberlain
2020-05-18 16:51     ` Luis Chamberlain
2020-05-18 16:58       ` Ben Greear
2020-05-18 17:09         ` Luis Chamberlain
2020-05-18 17:15           ` Ben Greear
2020-05-18 17:18             ` Luis Chamberlain
2020-05-18 18:06               ` Steve deRosier
2020-05-18 19:09                 ` Luis Chamberlain
2020-05-18 19:25                   ` Johannes Berg
2020-05-18 19:59                     ` Luis Chamberlain
2020-05-18 20:07                       ` Johannes Berg
2020-05-18 21:18                         ` Luis Chamberlain
2020-05-18 20:28                     ` Jakub Kicinski
2020-05-18 20:29                       ` Johannes Berg
2020-05-18 20:35                         ` Jakub Kicinski [this message]
2020-05-18 20:41                           ` Johannes Berg
2020-05-18 20:46                             ` Jakub Kicinski
2020-05-18 21:22                               ` Luis Chamberlain
2020-05-18 22:16                                 ` Jakub Kicinski
2020-05-19  1:05                                   ` Luis Chamberlain
2020-05-19 21:15                                     ` [RFC 1/2] devlink: add simple fw crash helpers Jakub Kicinski
2020-05-22  5:20                                       ` Luis Chamberlain
2020-05-22 17:17                                         ` Jakub Kicinski
2020-05-22 20:46                                           ` Johannes Berg
2020-05-22 21:51                                             ` Luis Chamberlain
2020-05-22 23:23                                               ` Steve deRosier
2020-05-22 23:44                                                 ` Luis Chamberlain
2020-05-25  9:07                                                 ` Andy Shevchenko
2020-05-25 17:08                                                   ` Ben Greear
2020-05-25 20:57                                             ` Jakub Kicinski
2020-07-30 13:56                                               ` Johannes Berg
2020-05-22 21:49                                           ` Luis Chamberlain
2020-05-19 21:15                                     ` [RFC 2/2] i2400m: use devlink health reporter Jakub Kicinski
2020-05-15 21:28 ` [PATCH v2 13/15] ath6kl: use new module_firmware_crashed() Luis Chamberlain
2020-05-16  4:12   ` Rafael Aquini
2020-05-15 21:28 ` [PATCH v2 14/15] brcm80211: " Luis Chamberlain
2020-05-16  4:13   ` Rafael Aquini
2020-05-15 21:28 ` [PATCH v2 15/15] mwl8k: " Luis Chamberlain
2020-05-16  4:13   ` Rafael Aquini

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