From: Matias Bjorling <Matias.Bjorling@wdc.com>
To: "Javier González" <javier@javigon.com>,
"Keith Busch" <kbusch@kernel.org>
Cc: "Jens Axboe" <axboe@kernel.dk>,
"Niklas Cassel" <Niklas.Cassel@wdc.com>,
"Damien Le Moal" <Damien.LeMoal@wdc.com>,
"Ajay Joshi" <Ajay.Joshi@wdc.com>,
"Sagi Grimberg" <sagi@grimberg.me>,
"Keith Busch" <Keith.Busch@wdc.com>,
"Dmitry Fomichev" <Dmitry.Fomichev@wdc.com>,
"Aravind Ramesh" <Aravind.Ramesh@wdc.com>,
"linux-nvme@lists.infradead.org" <linux-nvme@lists.infradead.org>,
"linux-block@vger.kernel.org" <linux-block@vger.kernel.org>,
"Hans Holmberg" <Hans.Holmberg@wdc.com>,
"Matias Bjørling" <mb@lightnvm.io>,
"Christoph Hellwig" <hch@lst.de>
Subject: RE: [PATCH 5/5] nvme: support for zoned namespaces
Date: Tue, 16 Jun 2020 16:04:20 +0000 [thread overview]
Message-ID: <MN2PR04MB62233520539D8CD908A8F5BBF19D0@MN2PR04MB6223.namprd04.prod.outlook.com> (raw)
In-Reply-To: <20200616155526.wxjoufhhxkwet5ya@MacBook-Pro.localdomain>
> -----Original Message-----
> From: Javier González <javier@javigon.com>
> Sent: Tuesday, 16 June 2020 17.55
> To: Keith Busch <kbusch@kernel.org>
> Cc: Damien Le Moal <Damien.LeMoal@wdc.com>; Matias Bjørling
> <mb@lightnvm.io>; Jens Axboe <axboe@kernel.dk>; Niklas Cassel
> <Niklas.Cassel@wdc.com>; Ajay Joshi <Ajay.Joshi@wdc.com>; Sagi Grimberg
> <sagi@grimberg.me>; Keith Busch <Keith.Busch@wdc.com>; Dmitry Fomichev
> <Dmitry.Fomichev@wdc.com>; Aravind Ramesh <Aravind.Ramesh@wdc.com>;
> linux-nvme@lists.infradead.org; linux-block@vger.kernel.org; Hans Holmberg
> <Hans.Holmberg@wdc.com>; Christoph Hellwig <hch@lst.de>; Matias Bjorling
> <Matias.Bjorling@wdc.com>
> Subject: Re: [PATCH 5/5] nvme: support for zoned namespaces
>
> On 16.06.2020 08:48, Keith Busch wrote:
> >On Tue, Jun 16, 2020 at 05:02:17PM +0200, Javier González wrote:
> >> This depends very much on how the FS / application is managing
> >> stripping. At the moment our main use case is enabling user-space
> >> applications submitting I/Os to raw ZNS devices through the kernel.
> >>
> >> Can we enable this use case to start with?
> >
> >I think this already provides that. You can set the nsid value to
> >whatever you want in the passthrough interface, so a namespace block
> >device is not required to issue I/O to a ZNS namespace from user space.
>
> Mmmmm. Problem now is that the check on the nvme driver prevents the ZNS
> namespace from being initialized. Am I missing something?
You can issue the io to the char device (e.g., /dev/nvme0), and specify the namespace. That will be initialized. If you like, you can use Keith's libnvme, that exposes all of the functionality to issue passthru I/Os.
Best, Matias
_______________________________________________
linux-nvme mailing list
linux-nvme@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-nvme
next prev parent reply other threads:[~2020-06-16 16:04 UTC|newest]
Thread overview: 96+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-15 23:34 [PATCH 0/5] nvme support for zoned namespace command set Keith Busch
2020-06-15 23:34 ` [PATCH 1/5] block: add capacity field to zone descriptors Keith Busch
2020-06-15 23:49 ` Chaitanya Kulkarni
2020-06-16 10:28 ` Javier González
2020-06-16 13:47 ` Daniel Wagner
2020-06-16 13:54 ` Johannes Thumshirn
2020-06-16 15:41 ` Martin K. Petersen
2020-06-15 23:34 ` [PATCH 2/5] null_blk: introduce zone capacity for zoned device Keith Busch
2020-06-15 23:46 ` Chaitanya Kulkarni
2020-06-16 14:18 ` Daniel Wagner
2020-06-16 15:48 ` Martin K. Petersen
2020-06-15 23:34 ` [PATCH 3/5] nvme: implement I/O Command Sets Command Set support Keith Busch
2020-06-16 10:33 ` Javier González
2020-06-16 17:14 ` Niklas Cassel
2020-06-16 15:58 ` Martin K. Petersen
2020-06-16 17:01 ` Keith Busch
2020-06-17 9:50 ` Niklas Cassel
2020-06-16 17:06 ` Niklas Cassel
2020-06-17 2:01 ` Martin K. Petersen
2020-06-15 23:34 ` [PATCH 4/5] nvme: support for multi-command set effects Keith Busch
2020-06-16 10:34 ` Javier González
2020-06-16 16:03 ` Martin K. Petersen
2020-06-15 23:34 ` [PATCH 5/5] nvme: support for zoned namespaces Keith Busch
2020-06-16 10:41 ` Javier González
2020-06-16 11:18 ` Matias Bjørling
2020-06-16 12:00 ` Javier González
2020-06-16 12:06 ` Matias Bjørling
2020-06-16 12:24 ` Javier González
2020-06-16 12:27 ` Matias Bjørling
2020-06-16 12:35 ` Damien Le Moal
[not found] ` <CGME20200616130815uscas1p1be34e5fceaa548eac31fb30790a689d4@uscas1p1.samsung.com>
2020-06-16 13:08 ` Judy Brock
2020-06-16 13:32 ` Matias Bjørling
2020-06-16 13:34 ` Damien Le Moal
2020-06-16 14:16 ` Javier González
2020-06-16 14:42 ` Damien Le Moal
2020-06-16 15:02 ` Javier González
2020-06-16 15:20 ` Matias Bjørling
2020-06-16 16:03 ` Javier González
2020-06-16 16:07 ` Matias Bjorling
2020-06-16 16:21 ` Javier González
2020-06-16 16:25 ` Matias Bjørling
2020-06-16 15:48 ` Keith Busch
2020-06-16 15:55 ` Javier González
2020-06-16 16:04 ` Matias Bjorling [this message]
2020-06-16 16:07 ` Keith Busch
2020-06-16 16:13 ` Javier González
2020-06-17 0:38 ` Damien Le Moal
2020-06-17 6:18 ` Javier González
2020-06-17 6:54 ` Damien Le Moal
2020-06-17 7:11 ` Javier González
2020-06-17 7:29 ` Damien Le Moal
2020-06-17 7:34 ` Javier González
2020-06-17 0:14 ` Damien Le Moal
2020-06-17 6:09 ` Javier González
2020-06-17 6:47 ` Damien Le Moal
2020-06-17 7:02 ` Javier González
2020-06-17 7:24 ` Damien Le Moal
2020-06-17 7:29 ` Javier González
[not found] ` <CGME20200616123503uscas1p22ce22054a1b4152a20437b5abdd55119@uscas1p2.samsung.com>
2020-06-16 12:35 ` Judy Brock
2020-06-16 12:37 ` Damien Le Moal
2020-06-16 12:37 ` Matias Bjørling
2020-06-16 13:12 ` Judy Brock
2020-06-16 13:18 ` Judy Brock
2020-06-16 13:32 ` Judy Brock
2020-06-16 13:39 ` Damien Le Moal
2020-06-17 7:43 ` Christoph Hellwig
2020-06-17 12:01 ` Martin K. Petersen
2020-06-17 15:00 ` Javier González
2020-06-17 14:42 ` Javier González
2020-06-17 17:57 ` Matias Bjørling
2020-06-17 18:28 ` Javier González
2020-06-17 18:55 ` Matias Bjorling
2020-06-17 19:09 ` Javier González
2020-06-17 19:23 ` Matias Bjørling
2020-06-17 19:40 ` Javier González
2020-06-17 23:44 ` Heiner Litz
2020-06-18 1:55 ` Keith Busch
2020-06-18 4:24 ` Heiner Litz
2020-06-18 5:15 ` Damien Le Moal
2020-06-18 20:47 ` Heiner Litz
2020-06-18 21:04 ` Matias Bjorling
2020-06-18 21:19 ` Keith Busch
2020-06-18 22:05 ` Heiner Litz
2020-06-19 0:57 ` Damien Le Moal
2020-06-19 10:29 ` Matias Bjorling
2020-06-19 18:08 ` Heiner Litz
2020-06-19 18:10 ` Keith Busch
2020-06-19 18:17 ` Heiner Litz
2020-06-19 18:22 ` Keith Busch
2020-06-19 18:25 ` Matias Bjørling
2020-06-19 18:40 ` Heiner Litz
2020-06-19 18:18 ` Matias Bjørling
2020-06-20 6:33 ` Christoph Hellwig
2020-06-20 17:52 ` Heiner Litz
2022-03-02 21:11 ` Luis Chamberlain
2020-06-17 2:08 ` Martin K. Petersen
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=MN2PR04MB62233520539D8CD908A8F5BBF19D0@MN2PR04MB6223.namprd04.prod.outlook.com \
--to=matias.bjorling@wdc.com \
--cc=Ajay.Joshi@wdc.com \
--cc=Aravind.Ramesh@wdc.com \
--cc=Damien.LeMoal@wdc.com \
--cc=Dmitry.Fomichev@wdc.com \
--cc=Hans.Holmberg@wdc.com \
--cc=Keith.Busch@wdc.com \
--cc=Niklas.Cassel@wdc.com \
--cc=axboe@kernel.dk \
--cc=hch@lst.de \
--cc=javier@javigon.com \
--cc=kbusch@kernel.org \
--cc=linux-block@vger.kernel.org \
--cc=linux-nvme@lists.infradead.org \
--cc=mb@lightnvm.io \
--cc=sagi@grimberg.me \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).