New Driver for MegaRaid 6Gb/s and 12Gb/s Card

[Desai, Kashyap]

> -----Original Message-----
> From: Sean Bruno [mailto:sean_bruno at yahoo.com]
> Sent: Thursday, April 18, 2013 3:39 AM
> To: Desai, Kashyap
> Cc: freebsd-scsi at freebsd.org; Kenneth D. Merry; jhb at freebsd.org;
> McConnell, Stephen
> Subject: Re: New Driver for MegaRaid 6Gb/s and 12Gb/s Card
> 
> On Thu, 2013-04-18 at 01:09 +0530, Desai, Kashyap wrote:
> > Ken:
> >
> > I would like to announce about new Driver submission named "mrsas" to
> upstream in near future.
> > As part of MegaRaid device driver development, LSI has developed new
> driver for next generation Raid Controller (6Gb/s and 12Gb/s).
> >
> > I am planning to submit new driver for "6Gb/s Raid Controller" as
> first drop sometimes next month. I will provide upstream patch for the
> same along with "man page of mrsas".
> >
> > As part of continuous development on "mrsas" driver, I will post
> support of LSI's 12Gb/s card on second phase.
> > Dates are not finalized for this, but  I will discuss about this
> before I post my updates.
> >
> > Thanks, Kashyap
> 
> Is this driver a complement for the current mfi(4) series of drivers or
> a replacement?

As of now mfi driver support upto LSI's 6Gb/s Raid controller (Product name "Thunderblot")
"mrsas" driver is a new driver which will support for "Thunderbolt" onwards product.

So plan is mrsas driver is LSI's recommended driver for 6Gb/s onwards Raid controller.

We are also going to provide priority choice for Thunderbolt controller (which is currently supported in mfi).
User can choose "mfi" Driver instead of "mrsas" for Thunderbolt Controller.

In summary, mfi will not have any additional support for new controls and it will stop at Thunderbolt.
In long term, if all user switch to "mrsas" for Thunderbolt card, we can also plan to remove support of "Thunderbolt" From "mfi"

Hope my response clarifies your doubts.

~ Kashyap


> 
> Sean