[9fans] kenfs

[9fans] kenfs

[erik quanstrom]

i put a new version of the kenfs code we're running at coraid on sources.
/n/sources/contrib/quanstro/src/myfs.  we continue to see good performance
and the most serious problem encountered so far is that the default
route was configured incorrectly requiring a creative dynamic route
for sntp.

this version fixes a locking problem in send and recv when called spllo
and a few bugs with odd configurations.  it also deprecates devsd code.
the huge size of the myricom firmware lead to devices and ethernet
controllers.  these are controlled by tables in $conf/etherctlr.c and
$conf/devtab.c.  this has reduced the size of the kernel built for the
soekris 4501 (aska) to 177994 bytes compressed.  finally, the partition
code has been reworked so that fdisk or prep partitions may be used
in addition to old-style partitions.  this allowed the boot code to use
a Device instead of a one-off construct for the nvr file.  thus the nvr
file for aska is
	nvr=ph0"9fat"!fs.nvr
where ph0"9fat" is a regular Device and fs.nvr is a fat file name.  the
same syntax may be used in filsys declarations. the main filesystem
on my new (unfinished) fs is declared as
	filsys main cpe2.0"kcache"e2.1
since i need just a few gb of cache, using an fdisk partition allows
me to archive linux junk to the rest of that partition without
opening an lba accountancy.  for performance reasons, it would
make less sense for the cache and worm to share a partitioned
target.

the floppy as been temporarly (?) broken by this change.

if anyone is interested in a soekris 4501 fs, contact me off list.
judging by the size of my worm, a 4GB CF should be enough to
run for several years.  or, use a small boot CF and an aoe target.

- erik

Re: [9fans] kenfs

[Tharaneedharan Vilwanathan]

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hi erik,

>if anyone is interested in a soekris 4501 fs, contact me off list.
>judging by the size of my worm, a 4GB CF should be enough to
>run for several years.  or, use a small boot CF and an aoe target.

couple of questions related to this posting as well as your previous one on
soekris box:

- will this work for 5501 as well?
- did u get as many as 8 ethernet ports working?

i am thinking of getting 5501 and trying plan9/inferno.

here are the things i like about soekris:

- surprisingly, their products have a long life (in terms of availability)
compared to other embedded boards from other companies
- price is reasonable and affordable. prices dont change much whether an
individual orders or a company orders, one or 1000 boards, etc. Also one can
order any number of boards (no limit on min. qty)
- many OSes are known to run

i wish plan9/inferno community provides more support for soekris products.
earlier, i used to wonder why ron minnich didnt go for soekris boards for
his projects.

regards
dharani

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Re: [9fans] kenfs

[erik quanstrom]

> couple of questions related to this posting as well as your previous one on
> soekris box:
>
> - will this work for 5501 as well?
> - did u get as many as 8 ethernet ports working?
>
> i am thinking of getting 5501 and trying plan9/inferno.

i don't know.  i don't have a 5501.  by the way i should have
made it clear that plan 9 does run on this box as ken fs running
does not imply that plan 9 does.

> i wish plan9/inferno community provides more support for soekris products.
> earlier, i used to wonder why ron minnich didnt go for soekris boards for
> his projects.

plan 9 has run on the 4501 for quite some time.

- erik

Re: [9fans] kenfs

[Tharaneedharan Vilwanathan]

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hi erik,

i havent seen much discussion on soekris cards in 9fans and inferno-list. so
i wish people interested in embedded boards consider soekris.

also, by support i meant support for controller devices (SATA
support?/ethernet support (5501 says VIA VTA6105M chips or so)?, etc). i
mean, more than just getting it up and running. may be, i need a first hand
expericence with the board before mentioning this.

regards
dharani


On 2/24/08, erik quanstrom <quanstro@quanstro.net> wrote:
>
> > couple of questions related to this posting as well as your previous one
> on
> > soekris box:
> >
> > - will this work for 5501 as well?
> > - did u get as many as 8 ethernet ports working?
> >
> > i am thinking of getting 5501 and trying plan9/inferno.
>
> i don't know.  i don't have a 5501.  by the way i should have
> made it clear that plan 9 does run on this box as ken fs running
> does not imply that plan 9 does.
>
> > i wish plan9/inferno community provides more support for soekris
> products.
> > earlier, i used to wonder why ron minnich didnt go for soekris boards
> for
> > his projects.
>
> plan 9 has run on the 4501 for quite some time.
>
> - erik
>
>

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