linux-kernel - Re: bnx2 dirver's firmware images

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Message-ID: <1190142592.9540.218.camel@dell>
Date:	Tue, 18 Sep 2007 12:09:52 -0700
From:	"Michael Chan" <mchan@...adcom.com>
To:	"Denys Vlasenko" <vda.linux@...glemail.com>
cc:	linux-kernel@...r.kernel.org, "David Miller" <davem@...emloft.net>,
	"netdev" <netdev@...r.kernel.org>
Subject: Re: bnx2 dirver's firmware images

On Tue, 2007-09-18 at 18:55 +0100, Denys Vlasenko wrote:
> On Tuesday 18 September 2007 19:45, Michael Chan wrote:
> > We can compress all the different sections of the firmware.  Currently,
> > we only compress the biggest chunks and the rest are uncompressed.
> 
> > These zeros should compress to almost nothing.  But I agree that the
> > firmware is still big.
> 
> You don't need to store and fetch zeros at all. You *know* that
> they are zeros, right? So do this:
> 
> -                         REG_WR_IND(bp, offset, fw->bss[j]);
> +                         REG_WR_IND(bp, offset, 0);
> 
Good point.  We can do that.  Looking at the file, there are other non-
zero data that can be compressed to save some more room.

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