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
next prev parent reply other threads:[~2014-09-11 10:45 UTC|newest]
Thread overview: 63+ 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 ` [PATCH 1/4] pmem: Initial version of " Ross Zwisler
2014-09-09 16:23 ` [PATCH v2] " Boaz Harrosh
2014-09-09 16:53 ` [Linux-nvdimm] " Dan Williams
2014-09-10 13:23 ` Boaz Harrosh
2014-09-10 17:03 ` Dan Williams
2014-09-10 17:47 ` Boaz Harrosh
2014-09-10 23:01 ` Dan Williams
2014-09-11 10:45 ` Boaz Harrosh [this message]
2014-09-11 16:31 ` Dan Williams
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)
2014-11-03 15:50 ` Jeff Moyer
2014-11-03 16:19 ` Wilcox, Matthew R
2014-11-04 10:37 ` Boaz Harrosh
2014-11-04 16:26 ` Elliott, Robert (Server Storage)
2014-11-04 16:41 ` Ross Zwisler
2014-11-04 17:06 ` Boaz Harrosh
2014-08-27 21:12 ` [PATCH 2/4] pmem: Add support for getgeo() Ross Zwisler
2014-11-02 3:27 ` Elliott, Robert (Server Storage)
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 ` [PATCH 4/4] pmem: Add support for direct_access() Ross Zwisler
2014-09-09 15:37 ` [PATCH 0/9] pmem: Fixes and farther development (mm: add_persistent_memory) Boaz Harrosh
2014-09-09 15:40 ` [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 15:45 ` [PATCH 5/9] mm: Let sparse_{add,remove}_one_section receive a node_id Boaz Harrosh
2014-09-09 18:36 ` Dave Hansen
2014-09-10 10:07 ` Boaz Harrosh
2014-09-10 16:10 ` Dave Hansen
2014-09-10 17:25 ` Boaz Harrosh
2014-09-10 18:28 ` Dave Hansen
2014-09-11 8:39 ` Boaz Harrosh
2014-09-11 17:07 ` Dave Hansen
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 15:48 ` [PATCH 7/9] pmem: Add support for page structs 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
2014-09-10 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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