[SCSI] aic7xxx: remove separate target and device allocations

Since the aic driver is now taught to speak in terms of the generic
linux devices, we can now also dispense with the transport class get
routines (since we update the parameters when the driver sees they
change) and also plumb it into the spi transport transfer agreement
reporting infrastructure.
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

drivers/scsi/aic7xxx/aic7xxx_osm.h

@@ -79,6 +79,8 @@
 #include <scsi/scsi_device.h>
 #include <scsi/scsi_host.h>
 #include <scsi/scsi_tcq.h>
+#include <scsi/scsi_transport.h>
+#include <scsi/scsi_transport_spi.h>
 
 /* Core SCSI definitions */
 #define AIC_LIB_PREFIX ahc
@@ -330,8 +332,6 @@ typedef enum {
 
 struct ahc_linux_target;
 struct ahc_linux_device {
-	TAILQ_ENTRY(ahc_linux_device) links;
-
 	/*
 	 * The number of transactions currently
 	 * queued to the device.
@@ -401,17 +401,10 @@ struct ahc_linux_device {
 	 */
 	u_int			commands_since_idle_or_otag;
 #define AHC_OTAG_THRESH	500
-
-	int			lun;
-	struct scsi_device       *scsi_device;
-	struct			ahc_linux_target *target;
 };
 
 struct ahc_linux_target {
-	struct ahc_linux_device	 *devices[AHC_NUM_LUNS];
-	int			  channel;
-	int			  target;
-	int			  refcount;
+	struct scsi_device	 *sdev[AHC_NUM_LUNS];
 	struct ahc_transinfo	  last_tinfo;
 	struct ahc_softc	 *ahc;
 };
@@ -445,7 +438,7 @@ struct ahc_platform_data {
 	/*
 	 * Fields accessed from interrupt context.
 	 */
-	struct ahc_linux_target *targets[AHC_NUM_TARGETS]; 
+	struct scsi_target *starget[AHC_NUM_TARGETS]; 
 
 	spinlock_t		 spin_lock;
 	u_int			 qfrozen;

drivers/scsi/aic7xxx/aic7xxx_proc.c

@@ -50,7 +50,7 @@ static void	ahc_dump_target_state(struct ahc_softc *ahc,
 				      u_int our_id, char channel,
 				      u_int target_id, u_int target_offset);
 static void	ahc_dump_device_state(struct info_str *info,
-				      struct ahc_linux_device *dev);
+				      struct scsi_device *dev);
 static int	ahc_proc_write_seeprom(struct ahc_softc *ahc,
 				       char *buffer, int length);
 
@@ -142,6 +142,7 @@ ahc_dump_target_state(struct ahc_softc *ahc, struct info_str *info,
 		      u_int target_offset)
 {
 	struct	ahc_linux_target *targ;
+	struct	scsi_target *starget;
 	struct	ahc_initiator_tinfo *tinfo;
 	struct	ahc_tmode_tstate *tstate;
 	int	lun;
@@ -153,7 +154,8 @@ ahc_dump_target_state(struct ahc_softc *ahc, struct info_str *info,
 	copy_info(info, "Target %d Negotiation Settings\n", target_id);
 	copy_info(info, "\tUser: ");
 	ahc_format_transinfo(info, &tinfo->user);
-	targ = ahc->platform_data->targets[target_offset];
+	starget = ahc->platform_data->starget[target_offset];
+	targ = scsi_transport_target_data(starget);
 	if (targ == NULL)
 		return;
 
@@ -163,22 +165,25 @@ ahc_dump_target_state(struct ahc_softc *ahc, struct info_str *info,
 	ahc_format_transinfo(info, &tinfo->curr);
 
 	for (lun = 0; lun < AHC_NUM_LUNS; lun++) {
-		struct ahc_linux_device *dev;
+		struct scsi_device *sdev;
 
-		dev = targ->devices[lun];
+		sdev = targ->sdev[lun];
 
-		if (dev == NULL)
+		if (sdev == NULL)
 			continue;
 
-		ahc_dump_device_state(info, dev);
+		ahc_dump_device_state(info, sdev);
 	}
 }
 
 static void
-ahc_dump_device_state(struct info_str *info, struct ahc_linux_device *dev)
+ahc_dump_device_state(struct info_str *info, struct scsi_device *sdev)
 {
+	struct ahc_linux_device *dev = scsi_transport_device_data(sdev);
+
 	copy_info(info, "\tChannel %c Target %d Lun %d Settings\n",
-		  dev->target->channel + 'A', dev->target->target, dev->lun);
+		  sdev->sdev_target->channel + 'A',
+		  sdev->sdev_target->id, sdev->lun);
 
 	copy_info(info, "\t\tCommands Queued %ld\n", dev->commands_issued);
 	copy_info(info, "\t\tCommands Active %d\n", dev->active);