HCLGE_MEM_BAR
if (!(pci_select_bars(pdev, IORESOURCE_MEM) & BIT(HCLGE_MEM_BAR)))
pci_resource_start(pdev, HCLGE_MEM_BAR),
pci_resource_len(pdev, HCLGE_MEM_BAR));
(pci_resource_len((hdev)->pdev, HCLGE_MEM_BAR) >> 1)