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From: Adrian Hunter <adrian.hunter@intel.com>
To: Avri Altman <Avri.Altman@wdc.com>,
	"Martin K . Petersen" <martin.petersen@oracle.com>
Cc: "James E . J . Bottomley" <jejb@linux.ibm.com>,
	Bean Huo <huobean@gmail.com>,
	"linux-scsi@vger.kernel.org" <linux-scsi@vger.kernel.org>
Subject: Re: [PATCH 0/1] scsi: ufs-pci: Force a full restore after suspend-to-disk
Date: Wed, 13 Oct 2021 14:41:52 +0300	[thread overview]
Message-ID: <4b6b177e-2311-5c90-2eaa-e648aeaa5d72@intel.com> (raw)
In-Reply-To: <DM6PR04MB65752EF1F70EA5CF44F8AEAFFCB79@DM6PR04MB6575.namprd04.prod.outlook.com>

On 13/10/2021 13:46, Avri Altman wrote:
>> Hi
>>
>> This patch ensures suspend-to-disk works with Host Performance Booster.
> What is "suspend-to-disk"?

Hibernation, refer kernel config CONFIG_HIBERNATION
i.e.

echo disk > /sys/power/state

> What power mode is used for that?

Same as spm_lvl except ufshcd_wl_poweroff() naturally uses the same as
shutdown i.e. POWERDOWN 

> 
> Thanks,
> Avri
> 
>> Since the Host Perfomance Booster feature was added in v5.15, please
>> consider this for v5.15 fixes.
>>
>>
>> Adrian Hunter (1):
>>       scsi: ufs-pci: Force a full restore after suspend-to-disk
>>
>>  drivers/scsi/ufs/ufshcd-pci.c | 31 ++++++++++++++++---------------
>>  1 file changed, 16 insertions(+), 15 deletions(-)
>>
>>
>> Regards
>> Adrian


  reply	other threads:[~2021-10-13 11:41 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-12 12:59 [PATCH 0/1] scsi: ufs-pci: Force a full restore after suspend-to-disk Adrian Hunter
2021-10-12 12:59 ` [PATCH 1/1] " Adrian Hunter
2021-10-14  6:15   ` Avri Altman
2021-10-14  6:37     ` Adrian Hunter
2021-10-14  7:14       ` Avri Altman
2021-10-17  2:05   ` Martin K. Petersen
2021-10-13 10:46 ` [PATCH 0/1] " Avri Altman
2021-10-13 11:41   ` Adrian Hunter [this message]
2021-10-13 12:33     ` Avri Altman

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