#define VNSvInPortB(dwIOAddress, pbyData)                              \
 do {                                                                   \
-       *(pbyData) = readb(dwIOAddress);                                \
+       *(pbyData) = ioread8(dwIOAddress);                              \
 } while (0)
 
 #define VNSvInPortW(dwIOAddress, pwData)                               \
 do {                                                                   \
-       *(pwData) = readw(dwIOAddress);                                 \
+       *(pwData) = ioread16(dwIOAddress);                              \
 } while (0)
 
 #define VNSvInPortD(dwIOAddress, pdwData)                              \
 do {                                                                   \
-       *(pdwData) = readl(dwIOAddress);                                \
+       *(pdwData) = ioread32(dwIOAddress);                             \
 } while (0)
 
 #define VNSvOutPortB(dwIOAddress, byData)                              \
 do {                                                                   \
-       writeb((unsigned char)byData, dwIOAddress);                     \
+       iowrite8((u8)byData, dwIOAddress);                              \
 } while (0)
 
 #define VNSvOutPortW(dwIOAddress, wData)                               \
 do {                                                                   \
-       writew((unsigned short)wData, dwIOAddress);                     \
+       iowrite16((u16)wData, dwIOAddress);                             \
 } while (0)
 
 #define VNSvOutPortD(dwIOAddress, dwData)                              \
 do {                                                                   \
-       writel((unsigned long)dwData, dwIOAddress);                     \
+       iowrite32((u32)dwData, dwIOAddress);                            \
 } while (0)
 
 #define PCAvDelayByIO(uDelayUnit)                              \