[SCSI] mptsas : set max_id to infinite value.

Do not set max_id value received from FW. Once SAS transport layer is
introduced max_id value is missleading to SCSI mid layer. Use max_id to
infinite value.

logic of can queue of scsi host is changed.

Signed-off-by: James Bottomley <James.Bottomley@suse.de>
diff --git a/drivers/message/fusion/mptsas.c b/drivers/message/fusion/mptsas.c
index 936e35a..21bd78e 100644
--- a/drivers/message/fusion/mptsas.c
+++ b/drivers/message/fusion/mptsas.c
@@ -4761,10 +4761,9 @@
 
 	/* set 16 byte cdb's */
 	sh->max_cmd_len = 16;
-
-	sh->max_id = ioc->pfacts[0].PortSCSIID;
+	sh->can_queue = min_t(int, ioc->req_depth - 10, sh->can_queue);
+	sh->max_id = -1;
 	sh->max_lun = max_lun;
-
 	sh->transportt = mptsas_transport_template;
 
 	/* Required entry.
diff --git a/drivers/message/fusion/mptscsih.c b/drivers/message/fusion/mptscsih.c
index 1466a5a..0e402eb 100644
--- a/drivers/message/fusion/mptscsih.c
+++ b/drivers/message/fusion/mptscsih.c
@@ -2290,7 +2290,10 @@
 		else
 			max_depth = MPT_SCSI_CMD_PER_DEV_LOW;
 	} else
-		max_depth = MPT_SCSI_CMD_PER_DEV_HIGH;
+		 max_depth = ioc->sh->can_queue;
+
+	if (!sdev->tagged_supported)
+		max_depth = 1;
 
 	if (qdepth > max_depth)
 		qdepth = max_depth;