[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>

1 files changed, 4 insertions, 1 deletions

diff --git a/drivers/message/fusion/mptscsih.c b/drivers/message/fusion/mptscsih.c
index 1466a5aed5f8..0e402eb95716 100644
--- a/drivers/message/fusion/mptscsih.c
+++ b/drivers/message/fusion/mptscsih.c
@@ -2290,7 +2290,10 @@ mptscsih_change_queue_depth(struct scsi_device *sdev, int qdepth)
                 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;