The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/dev/raid/twe/Makefile

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    1 # $FreeBSD: src/sys/modules/twe/Makefile,v 1.8 2012/11/17 01:53:01 svnexp Exp $
    2 
    3 KMOD=   twe
    4 SRCS=   bus_if.h device_if.h pci_if.h twe.c twe_freebsd.c
    5 
    6 #CFLAGS+=-DTWE_DEBUG=0
    7 
    8 # The 3ware controller offers a choice of options related to handling of
    9 # mirror consistency in shutdown situations.
   10 #
   11 # If TWE_SHUTDOWN_NOTIFICATION is defined, the driver will inform the 
   12 # controller on clean shutdown.  On reboot after an unclean shutdown, the 
   13 # controller will perform a complete mirror rebuild.  This is the most
   14 # "safe" configuration, but it imposes a severe performance penalty in the
   15 # event of an unexpected reboot.
   16 #
   17 # In the alternate configuration, the controller assumes that all writes to
   18 # a mirror complete successfully.  In the case of an unclean shutdown,
   19 # mirror corruption may occur if the controller is reset or power is lost
   20 # during a disk write.  This configuration is more suitable if the system
   21 # has reliable power, but may be unstable for other reasons.
   22 #
   23 CFLAGS+=-DTWE_SHUTDOWN_NOTIFICATION
   24 
   25 .include <bsd.kmod.mk>

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