Symbol: MII_EXTSTATUS_1000X
usr/src/uts/common/io/mii/mii.c
1709
!!(extsr & (MII_EXTSTATUS_1000X | MII_EXTSTATUS_1000T));
usr/src/uts/common/io/mii/mii.c
1741
if (extsr & MII_EXTSTATUS_1000X) {