linux-kernel - Re: pull request: linux-firmware: update cxgb* firmwares

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Message-ID: <20120217192646.GB24908@hmsreliant.think-freely.org>
Date:	Fri, 17 Feb 2012 14:26:46 -0500
From:	Neil Horman <nhorman@...driver.com>
To:	Ben Hutchings <ben@...adent.org.uk>
Cc:	Divy Le Ray <divy@...lsio.com>,
	David Woodhouse <dwmw2@...radead.org>,
	linux-kernel@...r.kernel.org
Subject: Re: pull request: linux-firmware: update cxgb* firmwares

On Fri, Feb 17, 2012 at 03:41:34AM +0000, Ben Hutchings wrote:
> On Wed, 2012-02-15 at 23:18 -0800, Divy Le Ray wrote:
> [...]
> > The following changes since commit 38118a598df73d5a9fd72bf04910e8298db82a46:
> > 
> >    linux-firmware: brcm: add firmware for bcm43236 usb device 
> > (2012-02-11 19:20:10 +0000)
> > 
> > are available in the git repository at:
> >    git://git.chelsio.net/pub/git/linux-firmware for-upstream
> > 
> > Divy Le Ray (3):
> >        linux-firmware: rename t4fw.bin
> >        linux-firmware: add t4fw-1.4.16.0.bin firmware for cxgb4 driver.
> >        linux-firmware: update cxgb3 driver firmware to revision 7.12.0
> > 
> >   WHENCE                  |    4 +++-
> >   cxgb3/t3fw-7.12.0.bin   |  Bin 0 -> 31812 bytes
> >   cxgb4/t4fw-1.3.10.0.bin |  Bin 0 -> 241664 bytes
> >   cxgb4/t4fw-1.4.16.0.bin |  Bin 0 -> 298496 bytes
> >   cxgb4/t4fw.bin          |  Bin 241664 -> 17 bytes
> >   5 files changed, 3 insertions(+), 1 deletions(-)
> >   create mode 100755 cxgb3/t3fw-7.12.0.bin
> >   create mode 100644 cxgb4/t4fw-1.3.10.0.bin
> >   create mode 100644 cxgb4/t4fw-1.4.16.0.bin
> >   mode change 100644 => 120000 cxgb4/t4fw.bin
> 
> Are there any versions of the cxgb4 driver that will specifically
> request cxgb4/t4fw-1.3.10.0.bin?  If not, what's the point of keeping it
> around after changing the cxgb4/t4fw.bin symlink?
> 
> Ben.
> 
I think the right thing to do is update the chelsio driver to do exactly that,
request a specific version of firmware (or range of versions), like most other
drivers do.  That way a single system can boot kernels with varying driver
versions, each of which may require a different firmware api level.
Regards
Neil

> > Cheers,
> > Divy
> > 
> > 
> 
> -- 
> Ben Hutchings
> Beware of programmers who carry screwdrivers. - Leonard Brandwein


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