Symbol: PCIM_MSICTRL_MMC_MASK
sys/dev/pci/pcireg.h
620
(1 << (((ctrl) & PCIM_MSICTRL_MMC_MASK) >> 1))
usr.sbin/pciconf/cap.c
132
msgnum = 1 << ((ctrl & PCIM_MSICTRL_MMC_MASK) >> 1);