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From: "Javier González" <javier@javigon.com>
To: Bart Van Assche <bvanassche@acm.org>
Cc: Chaitanya Kulkarni <chaitanyak@nvidia.com>,
	Johannes Thumshirn <Johannes.Thumshirn@wdc.com>,
	Chaitanya Kulkarni <Chaitanya.Kulkarni@wdc.com>,
	"linux-block@vger.kernel.org" <linux-block@vger.kernel.org>,
	"linux-scsi@vger.kernel.org" <linux-scsi@vger.kernel.org>,
	"linux-nvme@lists.infradead.org" <linux-nvme@lists.infradead.org>,
	"dm-devel@redhat.com" <dm-devel@redhat.com>,
	"lsf-pc@lists.linux-foundation.org" 
	<lsf-pc@lists.linux-foundation.org>,
	"axboe@kernel.dk" <axboe@kernel.dk>,
	"msnitzer@redhat.com" <msnitzer@redhat.com>,
	"martin.petersen@oracle.com" <martin.petersen@oracle.com>,
	"roland@purestorage.com" <roland@purestorage.com>,
	"mpatocka@redhat.com" <mpatocka@redhat.com>,
	"hare@suse.de" <hare@suse.de>,
	"kbusch@kernel.org" <kbusch@kernel.org>,
	"rwheeler@redhat.com" <rwheeler@redhat.com>,
	"hch@lst.de" <hch@lst.de>,
	"Frederick.Knight@netapp.com" <Frederick.Knight@netapp.com>,
	"zach.brown@ni.com" <zach.brown@ni.com>,
	"osandov@fb.com" <osandov@fb.com>,
	Adam Manzanares <a.manzanares@samsung.com>,
	SelvaKumar S <selvakuma.s1@samsung.com>,
	Nitesh Shetty <nj.shetty@samsung.com>,
	Kanchan Joshi <joshi.k@samsung.com>,
	Vincent Fu <vincent.fu@samsung.com>
Subject: Re: [LSF/MM/BFP ATTEND] [LSF/MM/BFP TOPIC] Storage: Copy Offload
Date: Wed, 17 Nov 2021 13:53:49 +0100	[thread overview]
Message-ID: <20211117125224.z36hp2crpj4fwngc@ArmHalley.local> (raw)
In-Reply-To: <ab4ec640-9a89-ea25-fe68-85bae2ae5d8d@acm.org>

On 16.11.2021 09:59, Bart Van Assche wrote:
>On 11/16/21 05:43, Javier González wrote:
>>             - Here, we need copy emulation to support encryption 
>>without dealing with HW issues and garbage
>
>Hi Javier,
>
>Thanks very much for having taken notes and also for having shared 
>these.

My pleasure. Thanks for attending. Happy to see this moving.

>Regarding the above comment, after the meeting I learned that 
>the above is not correct. Encryption in Android is LBA independent and 
>hence it should be possible to offload F2FS garbage collection in 
>Android once the (UFS) storage controller supports this.
>
>For the general case, I propose to let the dm-crypt driver decide 
>whether or not to offload data copying since that driver knows whether 
>or not data copying can be offloaded.

Thanks for sharing this. We will make sure that DM / MD are supported
and then we can cover examples. Hopefully, you guys can help with the
bits for dm-crypt to make the decision to offload when it make sense.

I will update the notes to keep them alive. Maybe we can have them open
in your github page?

>
>Thanks,
>
>Bart.


  reply	other threads:[~2021-11-17 12:53 UTC|newest]

Thread overview: 135+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-11  0:15 [LSF/MM/BFP ATTEND] [LSF/MM/BFP TOPIC] Storage: Copy Offload Chaitanya Kulkarni
2021-05-11  0:15 ` [dm-devel] " Chaitanya Kulkarni
2021-05-11  0:15 ` Chaitanya Kulkarni
2021-05-11 21:15 ` Knight, Frederick
2021-05-11 21:15   ` [dm-devel] " Knight, Frederick
2021-05-11 21:15   ` Knight, Frederick
2021-05-12  2:21 ` Bart Van Assche
2021-05-12  2:21   ` [dm-devel] " Bart Van Assche
2021-05-12  2:21   ` Bart Van Assche
     [not found] ` <CGME20210512071321eucas1p2ca2253e90449108b9f3e4689bf8e0512@eucas1p2.samsung.com>
2021-05-12  7:13   ` Javier González
2021-05-12  7:13     ` [dm-devel] " Javier González
2021-05-12  7:13     ` Javier González
2021-05-12  7:30 ` Johannes Thumshirn
2021-05-12  7:30   ` [dm-devel] " Johannes Thumshirn
2021-05-12  7:30   ` Johannes Thumshirn
     [not found]   ` <CGME20210928191342eucas1p23448dcd51b23495fa67cdc017e77435c@eucas1p2.samsung.com>
2021-09-28 19:13     ` Javier González
2021-09-28 19:13       ` [dm-devel] " Javier González
2021-09-28 19:13       ` Javier González
2021-09-29  6:44       ` Johannes Thumshirn
2021-09-29  6:44         ` [dm-devel] " Johannes Thumshirn
2021-09-29  6:44         ` Johannes Thumshirn
2021-09-30  9:43       ` Chaitanya Kulkarni
2021-09-30  9:43         ` [dm-devel] " Chaitanya Kulkarni
2021-09-30  9:43         ` Chaitanya Kulkarni
2021-09-30  9:53         ` Javier González
2021-09-30  9:53           ` [dm-devel] " Javier González
2021-09-30  9:53           ` Javier González
2021-10-06 10:01         ` Javier González
2021-10-06 10:01           ` [dm-devel] " Javier González
2021-10-06 10:01           ` Javier González
2021-10-13  8:35           ` Javier González
2021-10-13  8:35             ` [dm-devel] " Javier González
2021-10-13  8:35             ` Javier González
2021-09-30 16:20       ` Bart Van Assche
2021-09-30 16:20         ` [dm-devel] " Bart Van Assche
2021-09-30 16:20         ` Bart Van Assche
2021-10-06 10:05         ` Javier González
2021-10-06 10:05           ` [dm-devel] " Javier González
2021-10-06 10:05           ` Javier González
2021-10-06 17:33           ` Bart Van Assche
2021-10-06 17:33             ` [dm-devel] " Bart Van Assche
2021-10-06 17:33             ` Bart Van Assche
2021-10-08  6:49             ` Javier González
2021-10-08  6:49               ` Javier González
2021-10-29  0:21               ` Chaitanya Kulkarni
2021-10-29  0:21                 ` [dm-devel] " Chaitanya Kulkarni
2021-10-29  5:51                 ` Hannes Reinecke
2021-10-29  5:51                   ` [dm-devel] " Hannes Reinecke
2021-10-29  8:16                   ` Javier González
2021-10-29  8:16                     ` [dm-devel] " Javier González
2021-10-29 16:15                   ` Bart Van Assche
2021-10-29 16:15                     ` [dm-devel] " Bart Van Assche
2021-11-01 17:54                     ` Keith Busch
2021-11-01 17:54                       ` [dm-devel] " Keith Busch
2021-10-29  8:14                 ` Javier González
2021-10-29  8:14                   ` [dm-devel] " Javier González
2021-11-03 19:27                   ` Javier González
2021-11-03 19:27                     ` [dm-devel] " Javier González
2021-11-16 13:43                     ` Javier González
2021-11-16 17:59                       ` Bart Van Assche
2021-11-16 17:59                         ` [dm-devel] " Bart Van Assche
2021-11-17 12:53                         ` Javier González [this message]
2021-11-17 15:52                           ` Bart Van Assche
2021-11-17 15:52                             ` [dm-devel] " Bart Van Assche
2021-11-19  7:38                             ` Javier González
2021-11-19 10:47                       ` Kanchan Joshi
2021-11-19 15:51                         ` Keith Busch
2021-11-19 16:21                         ` Bart Van Assche
2021-11-19 16:21                           ` [dm-devel] " Bart Van Assche
2021-11-22  7:39                       ` Kanchan Joshi
2021-05-12  7:36 ` [dm-devel] " Erwin van Londen
2021-05-12 15:23 ` Hannes Reinecke
2021-05-12 15:23   ` [dm-devel] " Hannes Reinecke
2021-05-12 15:23   ` Hannes Reinecke
2021-05-12 15:45 ` Himanshu Madhani
2021-05-12 15:45   ` [dm-devel] " Himanshu Madhani
2021-05-12 15:45   ` Himanshu Madhani
2021-05-17 16:39 ` Kanchan Joshi
2021-05-17 16:39   ` [dm-devel] " Kanchan Joshi
2021-05-17 16:39   ` Kanchan Joshi
2021-05-18  0:15 ` Bart Van Assche
2021-05-18  0:15   ` [dm-devel] " Bart Van Assche
2021-05-18  0:15   ` Bart Van Assche
2021-06-11  6:03 ` Chaitanya Kulkarni
2021-06-11  6:03   ` [dm-devel] " Chaitanya Kulkarni
2021-06-11  6:03   ` Chaitanya Kulkarni
2021-06-11 15:35 ` Nikos Tsironis
2021-06-11 15:35   ` [dm-devel] " Nikos Tsironis
2021-06-11 15:35   ` Nikos Tsironis
     [not found] <CGME20230113094723epcas5p2f6f81ca1ad85f4b26829b87f8ec301ce@epcas5p2.samsung.com>
2023-01-13  9:46 ` Nitesh Shetty
     [not found] <CGME20220127071544uscas1p2f70f4d2509f3ebd574b7ed746d3fa551@uscas1p2.samsung.com>
2022-01-27  7:14 ` Chaitanya Kulkarni
2022-01-28 19:59   ` Adam Manzanares
2022-01-31 11:49     ` Johannes Thumshirn
2022-01-31 19:03   ` Bart Van Assche
2022-02-01  1:54   ` Luis Chamberlain
2022-02-01 10:21   ` Javier González
2022-02-07  9:57     ` Nitesh Shetty
2022-02-02  5:57   ` Kanchan Joshi
2022-02-07 10:45   ` David Disseldorp
2022-03-01 17:34   ` Nikos Tsironis
2022-03-01 21:32     ` Chaitanya Kulkarni
2022-03-03 18:36       ` Nikos Tsironis
2022-03-08 20:48       ` Nikos Tsironis
2022-03-09  8:51         ` Mikulas Patocka
2022-03-09 15:49           ` Nikos Tsironis
     [not found] <CGME20200107181551epcas5p4f47eeafd807c28a26b4024245c4e00ab@epcas5p4.samsung.com>
2020-01-07 18:14 ` Chaitanya Kulkarni
2020-01-07 18:14   ` Chaitanya Kulkarni
2020-01-07 18:14   ` Chaitanya Kulkarni
2020-01-08 10:17   ` Javier González
2020-01-08 10:17     ` Javier González
2020-01-08 10:17     ` Javier González
2020-01-09  0:51     ` Logan Gunthorpe
2020-01-09  0:51       ` Logan Gunthorpe
2020-01-09  0:51       ` Logan Gunthorpe
2020-01-09  3:18   ` Bart Van Assche
2020-01-09  3:18     ` Bart Van Assche
2020-01-09  3:18     ` Bart Van Assche
2020-01-09  4:01     ` Chaitanya Kulkarni
2020-01-09  4:01       ` Chaitanya Kulkarni
2020-01-09  4:01       ` Chaitanya Kulkarni
2020-01-09  5:56     ` Damien Le Moal
2020-01-09  5:56       ` Damien Le Moal
2020-01-09  5:56       ` Damien Le Moal
2020-01-10  5:33     ` Martin K. Petersen
2020-01-10  5:33       ` Martin K. Petersen
2020-01-10  5:33       ` Martin K. Petersen
2020-01-24 14:23   ` Nikos Tsironis
2020-01-24 14:23     ` Nikos Tsironis
2020-01-24 14:23     ` Nikos Tsironis
2020-02-13  5:11   ` joshi.k
2020-02-13  5:11     ` joshi.k
2020-02-13  5:11     ` joshi.k
2020-02-13 13:09     ` Knight, Frederick
2020-02-13 13:09       ` Knight, Frederick
2020-02-13 13:09       ` Knight, Frederick

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