enable TRIM by default ?

[John-Mark Gurney]

Jung-uk Kim wrote this message on Wed, Dec 03, 2014 at 14:41 -0500:
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> On 12/03/2014 13:55, Peter Jeremy wrote:
> > On 2014-Dec-03 08:40:43 +0000, Poul-Henning Kamp
> > <phk at phk.freebsd.dk> wrote:
> >> -------- In message <20141203083444.GD13944 at server.rulingia.com>,
> >> Peter Jeremy writes:
> >> 
> >>> It's a Super Talent FEM16GF13M - which describes itself as a
> >>> SSD and has a PATA interface.  That trial was ~3 years ago and
> >>> so probably on 8.x.
> >> 
> >> A lot of scammers realized that if they put a CF card inside a
> >> big box they could charge twice the price.
> > 
> > In this case, it's a bare PCB with the chips soldered onto it (I 
> > didn't keep a record of the chips).  Possibly they've copied
> > firmware from a CF controller but it definitely doesn't have a CF
> > card in it.
> 
> I looked it up on Amazon and it had photos.  It seems the card has
> Phison P3016-P7-L on it[1] and it looks like a low-cost CF controller
> supporting CF 5.0 spec[2].  Unfortunately, TRIM was added in CF 6.0[3].

If we tried to enable CFA ERASE on a card not supporting it, we should
fix our driver, though if they lied about which CF spec they support,
then there isn't much we can do except add a quirk...

-- 
  John-Mark Gurney				Voice: +1 415 225 5579

     "All that I will do, has been done, All that I have, has not."