PATCH: support for IDE devices in ide-scsi with devfs

PATCH: support for IDE devices in ide-scsi with devfs

[Borsenkow Andrej]

Currently using ide-scsi with devfs does not allow you to use hdparm
interface because no IDE nodes (block devices) are created. The patch
adds this.

Related patch for devfsd that creates old compatibility links is going
to devfs list. I do not think spcial new compatibility links are needed.

-andrej

--- linux-2.4.18-4mdk/drivers/scsi/ide-scsi.c.orig	Tue Mar  5 06:08:04 2002
+++ linux-2.4.18-4mdk/drivers/scsi/ide-scsi.c	Thu Mar 21 21:21:31 2002
@@ -95,6 +95,7 @@
 	unsigned long flags;			/* Status/Action flags */
 	unsigned long transform;		/* SCSI cmd translation layer */
 	unsigned long log;			/* log flags */
+	devfs_handle_t de;			/* pointer to IDE device */
 } idescsi_scsi_t;
 
 /*
@@ -502,6 +503,8 @@
  */
 static void idescsi_setup (ide_drive_t *drive, idescsi_scsi_t *scsi, int id)
 {
+	int minor = (drive->select.b.unit) << PARTN_BITS;
+
 	DRIVER(drive)->busy++;
 	idescsi_drives[id] = drive;
 	drive->driver_data = scsi;
@@ -516,6 +519,10 @@
 	set_bit(IDESCSI_LOG_CMD, &scsi->log);
 #endif /* IDESCSI_DEBUG_LOG */
 	idescsi_add_settings(drive);
+	scsi->de = devfs_register(drive->de, "generic", DEVFS_FL_DEFAULT,
+				     HWIF(drive)->major, minor,
+				     S_IFBLK | S_IRUSR | S_IWUSR,
+				     ide_fops, NULL);
 }
 
 static int idescsi_cleanup (ide_drive_t *drive)
@@ -524,6 +531,8 @@
 
 	if (ide_unregister_subdriver (drive))
 		return 1;
+	if (scsi->de)
+		devfs_unregister(scsi->de);
 	drive->driver_data = NULL;
 	kfree (scsi);
 	return 0;

Re: PATCH: support for IDE devices in ide-scsi with devfs

[Andre Hedrick]

Thankyou sir I have been working towards that direction, but glad and
happy you have assisted !

Cheers,

Andre Hedrick
LAD Storage Consulting Group


On 21 Mar 2002, Borsenkow Andrej wrote:

> Currently using ide-scsi with devfs does not allow you to use hdparm
> interface because no IDE nodes (block devices) are created. The patch
> adds this.
> 
> Related patch for devfsd that creates old compatibility links is going
> to devfs list. I do not think spcial new compatibility links are needed.
> 
> -andrej
> 
> --- linux-2.4.18-4mdk/drivers/scsi/ide-scsi.c.orig	Tue Mar  5 06:08:04 2002
> +++ linux-2.4.18-4mdk/drivers/scsi/ide-scsi.c	Thu Mar 21 21:21:31 2002
> @@ -95,6 +95,7 @@
>  	unsigned long flags;			/* Status/Action flags */
>  	unsigned long transform;		/* SCSI cmd translation layer */
>  	unsigned long log;			/* log flags */
> +	devfs_handle_t de;			/* pointer to IDE device */
>  } idescsi_scsi_t;
>  
>  /*
> @@ -502,6 +503,8 @@
>   */
>  static void idescsi_setup (ide_drive_t *drive, idescsi_scsi_t *scsi, int id)
>  {
> +	int minor = (drive->select.b.unit) << PARTN_BITS;
> +
>  	DRIVER(drive)->busy++;
>  	idescsi_drives[id] = drive;
>  	drive->driver_data = scsi;
> @@ -516,6 +519,10 @@
>  	set_bit(IDESCSI_LOG_CMD, &scsi->log);
>  #endif /* IDESCSI_DEBUG_LOG */
>  	idescsi_add_settings(drive);
> +	scsi->de = devfs_register(drive->de, "generic", DEVFS_FL_DEFAULT,
> +				     HWIF(drive)->major, minor,
> +				     S_IFBLK | S_IRUSR | S_IWUSR,
> +				     ide_fops, NULL);
>  }
>  
>  static int idescsi_cleanup (ide_drive_t *drive)
> @@ -524,6 +531,8 @@
>  
>  	if (ide_unregister_subdriver (drive))
>  		return 1;
> +	if (scsi->de)
> +		devfs_unregister(scsi->de);
>  	drive->driver_data = NULL;
>  	kfree (scsi);
>  	return 0;
> 
> 
> 
> -
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