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From: Kai-Heng Feng <kai.heng.feng@canonical.com>
To: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Keith Busch <kbusch@kernel.org>,
	"Busch, Keith" <keith.busch@intel.com>,
	Christoph Hellwig <hch@lst.de>, Sagi Grimberg <sagi@grimberg.me>,
	"linux-nvme@lists.infradead.org" <linux-nvme@lists.infradead.org>,
	Mario Limonciello <Mario.Limonciello@dell.com>,
	Linux PM <linux-pm@vger.kernel.org>,
	LKML <linux-kernel@vger.kernel.org>
Subject: Re: [Regression] Commit "nvme/pci: Use host managed power state for suspend" has problems
Date: Fri, 26 Jul 2019 22:02:57 +0800	[thread overview]
Message-ID: <D33632F4-E119-4833-816C-79084DA03DE4@canonical.com> (raw)
In-Reply-To: <15043168.halW6uqc8m@kreacher>

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.
I am not sure how to downgrade it under Linux though.
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=mcxm8

Kai-Heng


  reply	other threads:[~2019-07-26 14:03 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 [this message]
2019-07-27 12:55           ` Rafael J. Wysocki
2019-07-29 15:51             ` Mario.Limonciello
2019-07-29 22:05               ` Rafael J. Wysocki

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