[PATCH] Timeout at bootTime with NEC3500A (and others) when inserted a CD in it.

[PATCH] Timeout at bootTime with NEC3500A (and others) when inserted a CD in it.

[Marcello Maggioni]

[-- Attachment #1: Type: text/plain, Size: 1579 bytes --]

Hi all, 

I've attached a patch intended for solving boottime issues with this
and other drives when a CD/DVD is inserted .

Problem: Some drives (NEC 3500 , TDK 1616N , Mad-dog MD-16XDVD9, RICOH
MP5163DA , Memorex DVD9 drive and IO-DATA's too for sure) , if a
CD/DVD is inserted into the tray when the system is booted and if
before the OS bootup the BIOS checked for the presence of a bootable
CD/DVD into the drive , during the IDE probe phase the drive may
result busy and remain so for the next 25/30 seconds . This cause the
drive to be skipped during the booting phase and not begin usable
until the next reboot (if the reboot goes well and the drive doesn't
timeout again ).

Solution: Rising the timeout time from 10 seconds to 35 seconds
(during these 35 seconds  every drive should wake up for sure
according to the tests I've done) .


Here the simple patch :

--- drivers/ide/ide-probe.c.orig	2005-04-26 15:04:46.000000000 +0200
+++ drivers/ide/ide-probe.c	2005-04-26 15:04:14.000000000 +0200
@@ -638,13 +638,13 @@
 	SELECT_DRIVE(&hwif->drives[0]);
 	hwif->OUTB(8, hwif->io_ports[IDE_CONTROL_OFFSET]);
 	mdelay(2);
-	rc = ide_wait_not_busy(hwif, 10000);
+	rc = ide_wait_not_busy(hwif, 35000);
 	if (rc)
 		return rc;
 	SELECT_DRIVE(&hwif->drives[1]);
 	hwif->OUTB(8, hwif->io_ports[IDE_CONTROL_OFFSET]);
 	mdelay(2);
-	rc = ide_wait_not_busy(hwif, 10000);
+	rc = ide_wait_not_busy(hwif, 35000);
 
 	/* Exit function with master reselected (let's be sane) */
 	SELECT_DRIVE(&hwif->drives[0]);


Greets,

Maggioni Marcello

[-- Attachment #2: ide-timeout-NEC3500.diff --]
[-- Type: text/plain, Size: 632 bytes --]

--- drivers/ide/ide-probe.c.orig	2005-04-26 15:04:46.000000000 +0200
+++ drivers/ide/ide-probe.c	2005-04-26 15:04:14.000000000 +0200
@@ -638,13 +638,13 @@
 	SELECT_DRIVE(&hwif->drives[0]);
 	hwif->OUTB(8, hwif->io_ports[IDE_CONTROL_OFFSET]);
 	mdelay(2);
-	rc = ide_wait_not_busy(hwif, 10000);
+	rc = ide_wait_not_busy(hwif, 35000);
 	if (rc)
 		return rc;
 	SELECT_DRIVE(&hwif->drives[1]);
 	hwif->OUTB(8, hwif->io_ports[IDE_CONTROL_OFFSET]);
 	mdelay(2);
-	rc = ide_wait_not_busy(hwif, 10000);
+	rc = ide_wait_not_busy(hwif, 35000);
 
 	/* Exit function with master reselected (let's be sane) */
 	SELECT_DRIVE(&hwif->drives[0]);

Re: [PATCH] Timeout at bootTime with NEC3500A (and others) when inserted a CD in it.

[Marcello Maggioni]

2005/4/26, Marcello Maggioni <hayarms@gmail.com>:
> Hi all,
> 
> I've attached a patch intended for solving boottime issues with this
> and other drives when a CD/DVD is inserted .
> 
> Problem: Some drives (NEC 3500 , TDK 1616N , Mad-dog MD-16XDVD9, RICOH
> MP5163DA , Memorex DVD9 drive and IO-DATA's too for sure) , if a
> CD/DVD is inserted into the tray when the system is booted and if
> before the OS bootup the BIOS checked for the presence of a bootable
> CD/DVD into the drive , during the IDE probe phase the drive may
> result busy and remain so for the next 25/30 seconds . This cause the
> drive to be skipped during the booting phase and not begin usable
> until the next reboot (if the reboot goes well and the drive doesn't
> timeout again ).
> 
> Solution: Rising the timeout time from 10 seconds to 35 seconds
> (during these 35 seconds  every drive should wake up for sure
> according to the tests I've done) .
> 
> Here the simple patch :
> 
> --- drivers/ide/ide-probe.c.orig        2005-04-26 15:04:46.000000000 +0200
> +++ drivers/ide/ide-probe.c     2005-04-26 15:04:14.000000000 +0200
> @@ -638,13 +638,13 @@
>         SELECT_DRIVE(&hwif->drives[0]);
>         hwif->OUTB(8, hwif->io_ports[IDE_CONTROL_OFFSET]);
>         mdelay(2);
> -       rc = ide_wait_not_busy(hwif, 10000);
> +       rc = ide_wait_not_busy(hwif, 35000);
>         if (rc)
>                 return rc;
>         SELECT_DRIVE(&hwif->drives[1]);
>         hwif->OUTB(8, hwif->io_ports[IDE_CONTROL_OFFSET]);
>         mdelay(2);
> -       rc = ide_wait_not_busy(hwif, 10000);
> +       rc = ide_wait_not_busy(hwif, 35000);
> 
>         /* Exit function with master reselected (let's be sane) */
>         SELECT_DRIVE(&hwif->drives[0]);
> 
> Greets,
> 
> Maggioni Marcello
> 

I have a question to ask.

What would be the negative effect of rising this timeout time?

Thanks

Bye

Marcello