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From: "Rafael J. Wysocki" <rafael@kernel.org>
To: Mario Limonciello <Mario.Limonciello@dell.com>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>,
	Kai-Heng Feng <kai.heng.feng@canonical.com>,
	"Rafael J. Wysocki" <rjw@rjwysocki.net>,
	Keith Busch <kbusch@kernel.org>,
	Keith Busch <keith.busch@intel.com>,
	Christoph Hellwig <hch@lst.de>, Sagi Grimberg <sagi@grimberg.me>,
	linux-nvme <linux-nvme@lists.infradead.org>,
	Linux PM <linux-pm@vger.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [Regression] Commit "nvme/pci: Use host managed power state for suspend" has problems
Date: Tue, 30 Jul 2019 00:05:43 +0200	[thread overview]
Message-ID: <CAJZ5v0gibD_oboFt7x7VjUTe4mw+mZxHcOiFEEcWdw8dUZ5RXw@mail.gmail.com> (raw)
In-Reply-To: <868a042a9422463fa1166653982bb985@AUSX13MPC105.AMER.DELL.COM>

On Mon, Jul 29, 2019 at 5:53 PM <Mario.Limonciello@dell.com> wrote:
>
> > -----Original Message-----
> > From: Rafael J. Wysocki <rafael@kernel.org>
> > Sent: Saturday, July 27, 2019 7:55 AM
> > To: Kai-Heng Feng
> > Cc: Rafael J. Wysocki; Keith Busch; Busch, Keith; Christoph Hellwig; Sagi Grimberg;
> > linux-nvme@lists.infradead.org; Limonciello, Mario; Linux PM; LKML
> > Subject: Re: [Regression] Commit "nvme/pci: Use host managed power state for
> > suspend" has problems
> >
> >
> > [EXTERNAL EMAIL]
> >
> > On Fri, Jul 26, 2019 at 4:03 PM Kai-Heng Feng
> > <kai.heng.feng@canonical.com> wrote:
> > >
> > > at 04:02, Rafael J. Wysocki <rjw@rjwysocki.net> wrote:
> > >
> > > > On Thursday, July 25, 2019 9:52:59 PM CEST Keith Busch wrote:
> > > >> On Thu, Jul 25, 2019 at 09:48:57PM +0200, Rafael J. Wysocki wrote:
> > > >>> NVME Identify Controller:
> > > >>> vid     : 0x1c5c
> > > >>> ssvid   : 0x1c5c
> > > >>> sn      : MS92N171312902J0N
> > > >>> mn      : PC401 NVMe SK hynix 256GB
> > > >>> fr      : 80007E00
> > > >>> rab     : 2
> > > >>> ieee    : ace42e
> > > >>> cmic    : 0
> > > >>> mdts    : 5
> > > >>> cntlid  : 1
> > > >>> ver     : 10200
> > > >>> rtd3r   : 7a120
> > > >>> rtd3e   : 1e8480
> > > >>> oaes    : 0x200
> > > >>> ctratt  : 0
> > > >>> oacs    : 0x17
> > > >>> acl     : 7
> > > >>> aerl    : 3
> > > >>> frmw    : 0x14
> > > >>> lpa     : 0x2
> > > >>> elpe    : 255
> > > >>> npss    : 4
> > > >>> avscc   : 0x1
> > > >>> apsta   : 0x1
> > > >>> wctemp  : 352
> > > >>> cctemp  : 354
> > > >>> mtfa    : 0
> > > >>> hmpre   : 0
> > > >>> hmmin   : 0
> > > >>> tnvmcap : 0
> > > >>> unvmcap : 0
> > > >>> rpmbs   : 0
> > > >>> edstt   : 10
> > > >>> dsto    : 0
> > > >>> fwug    : 0
> > > >>> kas     : 0
> > > >>> hctma   : 0
> > > >>> mntmt   : 0
> > > >>> mxtmt   : 0
> > > >>> sanicap : 0
> > > >>> hmminds : 0
> > > >>> hmmaxd  : 0
> > > >>> nsetidmax : 0
> > > >>> anatt   : 0
> > > >>> anacap  : 0
> > > >>> anagrpmax : 0
> > > >>> nanagrpid : 0
> > > >>> sqes    : 0x66
> > > >>> cqes    : 0x44
> > > >>> maxcmd  : 0
> > > >>> nn      : 1
> > > >>> oncs    : 0x1f
> > > >>> fuses   : 0x1
> > > >>> fna     : 0
> > > >>> vwc     : 0x1
> > > >>> awun    : 7
> > > >>> awupf   : 7
> > > >>> nvscc   : 1
> > > >>> acwu    : 7
> > > >>> sgls    : 0
> > > >>> mnan    : 0
> > > >>> subnqn  :
> > > >>> ioccsz  : 0
> > > >>> iorcsz  : 0
> > > >>> icdoff  : 0
> > > >>> ctrattr : 0
> > > >>> msdbd   : 0
> > > >>> ps    0 : mp:6.00W operational enlat:5 exlat:5 rrt:0 rrl:0
> > > >>>           rwt:0 rwl:0 idle_power:- active_power:-
> > > >>> ps    1 : mp:3.80W operational enlat:30 exlat:30 rrt:1 rrl:1
> > > >>>           rwt:1 rwl:1 idle_power:- active_power:-
> > > >>> ps    2 : mp:2.40W operational enlat:100 exlat:100 rrt:2 rrl:2
> > > >>>           rwt:2 rwl:2 idle_power:- active_power:-
> > > >>> ps    3 : mp:0.0700W non-operational enlat:1000 exlat:1000 rrt:3 rrl:3
> > > >>>           rwt:3 rwl:3 idle_power:- active_power:-
> > > >>> ps    4 : mp:0.0070W non-operational enlat:1000 exlat:5000 rrt:3 rrl:3
> > > >>>           rwt:3 rwl:3 idle_power:- active_power:-
> > > >>
> > > >> Hm, nothing stands out as something we can use to determine if we should
> > > >> skip the nvme specific settings or allow D3. I've no other ideas at the
> > > >> moment for what we may check.
> > > >
> > > > Well, do ASPM settings matter here?
> > >
> > > Seems like it's a regression in the firmware.
> > >
> > > The issue happens in version 80007E00 but not version 80006E00.
> >
> > So you mean the NVMe firmware, to be entirely precise.
>
> Yes.
>
> >
> > > I am not sure how to downgrade it under Linux though.
> >
> > Me neither.
>
> I'll ask the storage team to ask Hynix to make both these FW available on LVFS.
> Fwupd can upgrade and downgrade firmware when the binaries are made available.
>
> They could potentially be pulled directly out of the Windows executables too, but I don't
> know how to identify them myself.

Well, thanks, but I'm not quite convinced that the NVMe is the reason
why my 9380 cannot reach SLP_S0 and this is my production system, so
I'd rather not do NVMe firmware downgrade experiments on it. :-)



>
> >
> > > The firmware changelog [1] is very interesting:
> > > - Improves the performance of the solid-state drive (SSD) by distributing
> > > power into the SSD efficiently according to the power state of the system.
> > >
> > > [1]
> > >
> > https://www.dell.com/support/home/us/en/04/drivers/driversdetails?driverid=m
> > cxm8
> >
> > Huh.
> >
> > It looks like something else prevents the PCH on my 9380 from reaching
> > the right state for S0ix, though.  I still need to find out what it
> > is.

      reply	other threads:[~2019-07-29 22:05 UTC|newest]

Thread overview: 75+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-25  9:51 Rafael J. Wysocki
2019-07-25 14:02 ` Kai-Heng Feng
2019-07-25 16:23   ` Mario.Limonciello
2019-07-25 17:03     ` Rafael J. Wysocki
2019-07-25 17:23       ` Mario.Limonciello
2019-07-25 18:20       ` Kai-Heng Feng
2019-07-25 19:09         ` Mario.Limonciello
2019-07-30 10:45       ` Rafael J. Wysocki
2019-07-30 14:41         ` Keith Busch
2019-07-30 17:14           ` Mario.Limonciello
2019-07-30 18:50             ` Kai-Heng Feng
2019-07-30 19:19               ` Keith Busch
2019-07-30 21:05                 ` Mario.Limonciello
2019-07-30 21:31                   ` Keith Busch
2019-07-31 21:25                     ` Rafael J. Wysocki
2019-07-31 22:19                       ` Keith Busch
2019-07-31 22:33                         ` Rafael J. Wysocki
2019-08-01  9:05                           ` Kai-Heng Feng
2019-08-01 17:29                             ` Rafael J. Wysocki
2019-08-01 19:05                               ` Mario.Limonciello
2019-08-01 22:26                                 ` Rafael J. Wysocki
2019-08-02 10:55                                   ` Kai-Heng Feng
2019-08-02 11:04                                     ` Rafael J. Wysocki
2019-08-05 19:13                                       ` Kai-Heng Feng
2019-08-05 21:28                                         ` Rafael J. Wysocki
2019-08-06 14:02                                           ` Mario.Limonciello
2019-08-06 15:00                                             ` Rafael J. Wysocki
2019-08-07 10:29                                               ` Rafael J. Wysocki
2019-08-01 20:22                             ` Keith Busch
2019-08-07  9:48                         ` Rafael J. Wysocki
2019-08-07 10:45                           ` Christoph Hellwig
2019-08-07 10:54                             ` Rafael J. Wysocki
2019-08-07  9:53                         ` [PATCH] nvme-pci: Do not prevent PCI bus-level PM from being used Rafael J. Wysocki
2019-08-07 10:14                           ` Rafael J. Wysocki
2019-08-07 10:43                           ` Christoph Hellwig
2019-08-07 14:37                           ` Keith Busch
2019-08-08  8:36                         ` [PATCH] nvme-pci: Allow PCI bus-level PM to be used if ASPM is disabled Rafael J. Wysocki
2019-08-08  8:48                           ` Christoph Hellwig
2019-08-08  9:06                             ` Rafael J. Wysocki
2019-08-08 10:03                         ` [PATCH v2 0/2] " Rafael J. Wysocki
2019-08-08 10:06                           ` [PATCH v2 1/2] PCI: PCIe: ASPM: Introduce pcie_aspm_enabled_mask() Rafael J. Wysocki
2019-08-08 13:15                             ` Bjorn Helgaas
2019-08-08 14:48                               ` Rafael J. Wysocki
2019-08-08 10:10                           ` [PATCH v2 2/2] nvme-pci: Allow PCI bus-level PM to be used if ASPM is disabled Rafael J. Wysocki
2019-08-08 13:43                             ` Bjorn Helgaas
2019-08-08 14:47                               ` Rafael J. Wysocki
2019-08-08 17:06                                 ` Rafael J. Wysocki
2019-08-08 18:39                                 ` Bjorn Helgaas
2019-08-08 20:01                                   ` Keith Busch
2019-08-08 20:05                                   ` Mario.Limonciello
2019-08-08 20:41                                   ` Rafael J. Wysocki
2019-08-09  4:47                                     ` Bjorn Helgaas
2019-08-09  8:04                                       ` Rafael J. Wysocki
2019-08-08 21:51                         ` [PATCH v3 0/2] " Rafael J. Wysocki
2019-08-08 21:55                           ` [PATCH v3 1/2] PCI: PCIe: ASPM: Introduce pcie_aspm_enabled() Rafael J. Wysocki
2019-08-09  4:50                             ` Bjorn Helgaas
2019-08-09  8:00                               ` Rafael J. Wysocki
2019-10-07 22:34                             ` Bjorn Helgaas
2019-10-08  9:27                               ` Rafael J. Wysocki
2019-10-08 21:16                                 ` Bjorn Helgaas
2019-10-08 22:54                                   ` Rafael J. Wysocki
2019-10-09 12:49                                     ` Bjorn Helgaas
2019-08-08 21:58                           ` [PATCH v3 2/2] nvme-pci: Allow PCI bus-level PM to be used if ASPM is disabled Rafael J. Wysocki
2019-08-08 22:13                           ` [PATCH v3 0/2] " Keith Busch
2019-08-09  8:05                             ` Rafael J. Wysocki
2019-08-09 14:52                               ` Keith Busch
2019-07-25 16:59   ` [Regression] Commit "nvme/pci: Use host managed power state for suspend" has problems Rafael J. Wysocki
2019-07-25 14:52 ` Keith Busch
2019-07-25 19:48   ` Rafael J. Wysocki
2019-07-25 19:52     ` Keith Busch
2019-07-25 20:02       ` Rafael J. Wysocki
2019-07-26 14:02         ` Kai-Heng Feng
2019-07-27 12:55           ` Rafael J. Wysocki
2019-07-29 15:51             ` Mario.Limonciello
2019-07-29 22:05               ` Rafael J. Wysocki [this message]

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