qed: Fail driver load in 100g MSI mode.

100g support is not available in MSI mode. Failing the driver load in this scenario.

Please consider applying this to `net'.
Signed-off-by: Sudarsana Reddy Kalluru <sudarsana.kalluru@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/qlogic/qed/qed_main.c

@@ -659,8 +659,13 @@ static int qed_slowpath_setup_int(struct qed_dev *cdev,
 	struct qed_sb_cnt_info sb_cnt_info;
 	int rc;
 	int i;
-	memset(&cdev->int_params, 0, sizeof(struct qed_int_params));
 
+	if ((int_mode == QED_INT_MODE_MSI) && (cdev->num_hwfns > 1)) {
+		DP_NOTICE(cdev, "MSI mode is not supported for CMT devices\n");
+		return -EINVAL;
+	}
+
+	memset(&cdev->int_params, 0, sizeof(struct qed_int_params));
 	cdev->int_params.in.int_mode = int_mode;
 	for_each_hwfn(cdev, i) {
 		memset(&sb_cnt_info, 0, sizeof(sb_cnt_info));