/* Read the queue mask and implicitly acknowledge the interrupt. */
EFX_BAR_READD(enp, ER_DZ_BIU_INT_ISR_REG, &dword, B_FALSE);
/* Read the queue mask and implicitly acknowledge the interrupt. */
EFX_BAR_READD(enp, ER_DZ_BIU_INT_ISR_REG, &dword, B_FALSE);