scsi: aacraid: Using single reset mask for IOP reset

The driver can now trigger IOP reset with a single reset mask. Removed
code that retrieves a reset_mask from the firmware.
Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: David Carroll <david.carroll@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/aacraid/aacraid.h

@@ -2378,6 +2378,7 @@ struct revision
 #define SOFT_RESET_TIME			60
 
 
+
 struct aac_common
 {
 	/*
@@ -2490,6 +2491,8 @@ struct aac_hba_info {
 #define IOP_RESET_ALWAYS		0x00001001
 #define RE_INIT_ADAPTER		0x000000ee
 
+#define IOP_SRC_RESET_MASK		0x00000100
+
 /*
  *	Adapter Status Register
  *

drivers/scsi/aacraid/src.c

@@ -704,22 +704,10 @@ static void aac_send_iop_reset(struct aac_dev *dev, int bled)
 				    0, 0, 0, 0, 0, 0, &var,
 				    &reset_mask, NULL, NULL, NULL);
 
-	if ((bled || var != 0x00000001) && !dev->doorbell_mask)
-		bled = -EINVAL;
-	else if (dev->doorbell_mask) {
-		reset_mask = dev->doorbell_mask;
-		bled = 0;
-		var = 0x00000001;
-	}
-
 	aac_set_intx_mode(dev);
 
-	if (!bled && (dev->supplement_adapter_info.supported_options2 &
-	    AAC_OPTION_DOORBELL_RESET)) {
-		src_writel(dev, MUnit.IDR, reset_mask);
-	} else {
-		src_writel(dev, MUnit.IDR, 0x100);
-	}
+	src_writel(dev, MUnit.IDR, IOP_SRC_RESET_MASK);
+
 	msleep(30000);
 }