VMXNET3_BAR1_CMD
if (READ_BAR1(sc, VMXNET3_BAR1_CMD)) {
#define WRITE_CMD(sc, cmd) WRITE_BAR1(sc, VMXNET3_BAR1_CMD, cmd)
intrcfg = READ_BAR1(sc, VMXNET3_BAR1_CMD);
macl = READ_BAR1(sc, VMXNET3_BAR1_CMD);
mach = READ_BAR1(sc, VMXNET3_BAR1_CMD);
x = READ_BAR1(sc, VMXNET3_BAR1_CMD);