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Date: Tue, 9 Nov 2004 12:55:07 -0800
From: Andrew Morton <akpm@osdl.org>
To: Anton Blanchard <anton@samba.org>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [PATCH] ppc64: Bump MAX_HWIFS in IDE code
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In-Reply-To: <20041109203028.GA26806@krispykreme.ozlabs.ibm.com>
References: <20041109203028.GA26806@krispykreme.ozlabs.ibm.com>
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Anton Blanchard <anton@samba.org> wrote:
>
> 
> When fully configured, some POWER5 boxes can have much more than 4 IDE
> interfaces. Increase the limit to reflect this.
> 
> Signed-off-by: Anton Blanchard <anton@samba.org>
> 
> diff -puN include/asm-ppc64/ide.h~bump_ide_hwifs include/asm-ppc64/ide.h
> --- gr_work/include/asm-ppc64/ide.h~bump_ide_hwifs	2004-08-25 08:11:54.357759525 -0500
> +++ gr_work-anton/include/asm-ppc64/ide.h	2004-08-25 08:11:54.366758100 -0500
> @@ -19,7 +19,7 @@
>  #ifdef __KERNEL__
>  
>  #ifndef MAX_HWIFS
> -# define MAX_HWIFS	4
> +# define MAX_HWIFS	16
>  #endif

hrmph.  That costs 50kbytes, excluding ide-tape.  It's worth a config
variable, I think.