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From: Boaz Harrosh <boaz@plexistor.com>
To: Dan Williams <dan.j.williams@intel.com>
Cc: Boaz Harrosh <openosd@gmail.com>,
	Ross Zwisler <ross.zwisler@linux.intel.com>,
	Jens Axboe <axboe@kernel.dk>,
	Matthew Wilcox <matthew.r.wilcox@intel.com>,
	Nick Piggin <npiggin@kernel.dk>,
	linux-fsdevel <linux-fsdevel@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	linux-nvdimm@lists.01.org
Subject: Re: [Linux-nvdimm] [PATCH v2] pmem: Initial version of persistent memory driver
Date: Thu, 11 Sep 2014 13:45:14 +0300	[thread overview]
Message-ID: <54117D3A.3010305@plexistor.com> (raw)
In-Reply-To: <CAPcyv4gqyiTaSJY56ZrJh05kwh9O9sXNKOz40fGu5s_=eY=U6Q@mail.gmail.com>

On 09/11/2014 02:01 AM, Dan Williams wrote:
<>
> 
> Imagine you want to deploy a policy like "use half of the memory
> provided by the dimm in slot3, i.e. the only one with a battery".
> That sort of thing gets unwieldy in a command line string compared to
> a description table format that we can update at will.
> 

Actually it is easy to do, why? I do this here in the lab all the time.
with a "command line" with this code you see here.

[DDR3 NvDIMM which means I need memmap=16G\$32G on Kernel command line.
 Then: modprobe pmem map=8G@32G,4G@44G,...
 and so on Just as a simple example where 2/4-3/4 addresses are not used.
 You can have holes in the middle or what ever you want. This here is just
 a table in comma-separated format. If we need like flags in future we can
 extend the format to nn@ss:flags, but I do no have any 3rd column yet]

And again I have in the pipe a dynamic interface added on top of
the module param one. So it will all be there soon. Without reverting
the old one.

Thanks
Boaz


WARNING: multiple messages have this Message-ID (diff)
From: Boaz Harrosh <boaz@plexistor.com>
To: Dan Williams <dan.j.williams@intel.com>
Cc: Boaz Harrosh <openosd@gmail.com>,
	Ross Zwisler <ross.zwisler@linux.intel.com>,
	Jens Axboe <axboe@kernel.dk>,
	Matthew Wilcox <matthew.r.wilcox@intel.com>,
	Nick Piggin <npiggin@kernel.dk>,
	linux-fsdevel <linux-fsdevel@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	linux-nvdimm@ml01.01.org
Subject: Re: [Linux-nvdimm] [PATCH v2] pmem: Initial version of persistent memory driver
Date: Thu, 11 Sep 2014 13:45:14 +0300	[thread overview]
Message-ID: <54117D3A.3010305@plexistor.com> (raw)
In-Reply-To: <CAPcyv4gqyiTaSJY56ZrJh05kwh9O9sXNKOz40fGu5s_=eY=U6Q@mail.gmail.com>

On 09/11/2014 02:01 AM, Dan Williams wrote:
<>
> 
> Imagine you want to deploy a policy like "use half of the memory
> provided by the dimm in slot3, i.e. the only one with a battery".
> That sort of thing gets unwieldy in a command line string compared to
> a description table format that we can update at will.
> 

Actually it is easy to do, why? I do this here in the lab all the time.
with a "command line" with this code you see here.

[DDR3 NvDIMM which means I need memmap=16G\$32G on Kernel command line.
 Then: modprobe pmem map=8G@32G,4G@44G,...
 and so on Just as a simple example where 2/4-3/4 addresses are not used.
 You can have holes in the middle or what ever you want. This here is just
 a table in comma-separated format. If we need like flags in future we can
 extend the format to nn@ss:flags, but I do no have any 3rd column yet]

And again I have in the pipe a dynamic interface added on top of
the module param one. So it will all be there soon. Without reverting
the old one.

Thanks
Boaz


  reply	other threads:[~2014-09-11 10:45 UTC|newest]

Thread overview: 100+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-08-27 21:11 [PATCH 0/4] Add persistent memory driver Ross Zwisler
2014-08-27 21:11 ` Ross Zwisler
2014-08-27 21:11 ` [PATCH 1/4] pmem: Initial version of " Ross Zwisler
2014-08-27 21:11   ` Ross Zwisler
2014-09-09 16:23   ` [PATCH v2] " Boaz Harrosh
2014-09-09 16:23     ` Boaz Harrosh
2014-09-09 16:53     ` [Linux-nvdimm] " Dan Williams
2014-09-09 16:53       ` Dan Williams
2014-09-10 13:23       ` Boaz Harrosh
2014-09-10 13:23         ` Boaz Harrosh
2014-09-10 17:03         ` Dan Williams
2014-09-10 17:03           ` Dan Williams
2014-09-10 17:47           ` Boaz Harrosh
2014-09-10 17:47             ` Boaz Harrosh
2014-09-10 23:01             ` Dan Williams
2014-09-10 23:01               ` Dan Williams
2014-09-11 10:45               ` Boaz Harrosh [this message]
2014-09-11 10:45                 ` Boaz Harrosh
2014-09-11 16:31                 ` Dan Williams
2014-09-11 16:31                   ` Dan Williams
2014-09-14 11:18                   ` Boaz Harrosh
2014-09-14 11:18                     ` Boaz Harrosh
2014-09-16 13:54                     ` Jeff Moyer
2014-09-16 16:24                       ` Boaz Harrosh
2014-09-19 16:27                       ` Dan Williams
2014-09-21  9:27                         ` Boaz Harrosh
2014-11-02  3:22   ` [PATCH 1/4] " Elliott, Robert (Server Storage)
2014-11-02  3:22     ` Elliott, Robert (Server Storage)
2014-11-03 15:50     ` Jeff Moyer
2014-11-03 16:19     ` Wilcox, Matthew R
2014-11-03 16:19       ` Wilcox, Matthew R
2014-11-04 10:37       ` Boaz Harrosh
2014-11-04 10:37         ` Boaz Harrosh
2014-11-04 16:26         ` Elliott, Robert (Server Storage)
2014-11-04 16:26           ` Elliott, Robert (Server Storage)
2014-11-04 16:41           ` Ross Zwisler
2014-11-04 16:41             ` Ross Zwisler
2014-11-04 17:06             ` Boaz Harrosh
2014-11-04 17:06               ` Boaz Harrosh
2014-08-27 21:12 ` [PATCH 2/4] pmem: Add support for getgeo() Ross Zwisler
2014-08-27 21:12   ` Ross Zwisler
2014-11-02  3:27   ` Elliott, Robert (Server Storage)
2014-11-02  3:27     ` Elliott, Robert (Server Storage)
2014-11-03 16:36     ` Wilcox, Matthew R
2014-11-03 16:36       ` Wilcox, Matthew R
2014-08-27 21:12 ` [PATCH 3/4] pmem: Add support for rw_page() Ross Zwisler
2014-08-27 21:12   ` Ross Zwisler
2014-08-27 21:12 ` [PATCH 4/4] pmem: Add support for direct_access() Ross Zwisler
2014-08-27 21:12   ` Ross Zwisler
2014-09-09 15:37 ` [PATCH 0/9] pmem: Fixes and farther development (mm: add_persistent_memory) Boaz Harrosh
2014-09-09 15:37   ` Boaz Harrosh
2014-09-09 15:40   ` [PATCH 1/9] SQUASHME: pmem: Remove unused #include headers Boaz Harrosh
2014-09-09 22:29     ` Ross Zwisler
2014-09-10 11:36       ` Boaz Harrosh
2014-09-10 19:16       ` [Linux-nvdimm] " Matthew Wilcox
2014-09-11 11:35         ` Boaz Harrosh
2014-09-11 19:34           ` Matthew Wilcox
2014-09-09 15:41   ` [PATCH 2/9] SQUASHME: pmem: Request from fdisk 4k alignment Boaz Harrosh
2014-09-11 18:39     ` Ross Zwisler
2014-09-14 11:25       ` Boaz Harrosh
2014-09-09 15:43   ` [PATCH 3/9] SQUASHME: pmem: Let each device manage private memory region Boaz Harrosh
2014-09-11 20:35     ` Ross Zwisler
2014-09-09 15:44   ` [PATCH 4/9] SQUASHME: pmem: Support of multiple memory regions Boaz Harrosh
2014-09-09 15:44     ` Boaz Harrosh
2014-09-09 15:45   ` [PATCH 5/9] mm: Let sparse_{add,remove}_one_section receive a node_id Boaz Harrosh
2014-09-09 15:45     ` Boaz Harrosh
2014-09-09 18:36     ` Dave Hansen
2014-09-09 18:36       ` Dave Hansen
2014-09-10 10:07       ` Boaz Harrosh
2014-09-10 10:07         ` Boaz Harrosh
2014-09-10 16:10         ` Dave Hansen
2014-09-10 16:10           ` Dave Hansen
2014-09-10 17:25           ` Boaz Harrosh
2014-09-10 17:25             ` Boaz Harrosh
2014-09-10 18:28             ` Dave Hansen
2014-09-10 18:28               ` Dave Hansen
2014-09-10 18:28               ` Dave Hansen
2014-09-11  8:39               ` Boaz Harrosh
2014-09-11  8:39                 ` Boaz Harrosh
2014-09-11 17:07                 ` Dave Hansen
2014-09-11 17:07                   ` Dave Hansen
2014-09-14  9:36                   ` Boaz Harrosh
2014-09-14  9:36                     ` Boaz Harrosh
2014-09-09 15:47   ` [PATCH 6/9] mm: New add_persistent_memory/remove_persistent_memory Boaz Harrosh
2014-09-09 15:47     ` Boaz Harrosh
2014-09-09 15:48   ` [PATCH 7/9] pmem: Add support for page structs Boaz Harrosh
2014-09-09 15:48     ` Boaz Harrosh
2014-09-09 15:49   ` [PATCH 8/9] SQUASHME: pmem: Fixs to getgeo Boaz Harrosh
2014-09-09 15:51   ` [PATCH 9/9] pmem: KISS, remove register_blkdev Boaz Harrosh
2014-09-09 15:51     ` Boaz Harrosh
2014-09-10 16:50   ` [PATCH] SQUASHME pmem: Micro optimization for pmem_direct_access Boaz Harrosh
2014-09-10 22:32     ` Ross Zwisler
2014-09-11 11:42       ` Boaz Harrosh
2014-09-14 14:58     ` [PATCH v2] SQUASHME pmem: Micro optimize the hotpath Boaz Harrosh
2014-09-14 16:02       ` [PATCH] SQUASHME: pmem: no need to copy a page at a time Boaz Harrosh
2014-09-15  0:23         ` Wilcox, Matthew R
2014-09-15  8:47           ` Boaz Harrosh
2014-09-10 17:50   ` [PATCH] SQUASHME: pmem: Add MODULE_ALIAS Boaz Harrosh
2014-09-10 19:22     ` Ross Zwisler
2014-09-11 11:44       ` Boaz Harrosh

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