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e6c12d85d0
- Layout reorganisation to enhance portability. The driver now has a relatively MI 'core' and a FreeBSD-specific layer over the top. Since the NetBSD people have already done their own port, this is largely just to help me with the BSD/OS port. - Request ID allocation changed to improve performance (I'd been considering switching to this approach after having failed to come up with a better way to dynamically allocate request IDs, and seeing Andy Doran use it in the NetBSD port of the driver convinced me that I was wasting my time doing it any other way). Now we just allocate all the requests up front. - Maximum request count bumped back to 255 after characterisation of a firmware issue (off-by-one causing it to crash with 256 outstanding commands). - Control interface implemented. This allows 3ware's '3dm' utility to talk to the controller. 3dm will be available from 3ware shortly. - Controller soft-reset feature added; if the controller signals a firmware or protocol error, the controller will be reset and all outstanding commands will be retried.
33 lines
1.1 KiB
Makefile
33 lines
1.1 KiB
Makefile
# $FreeBSD$
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#
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# The 3ware controller offers a choice of options related to handling of
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# mirror consistency in shutdown situations.
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#
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# If TWE_SHUTDOWN_NOTIFICATION is defined, the driver will inform the
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# controller on clean shutdown. On reboot after an unclean shutdown, the
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# controller will perform a complete mirror rebuild. This is the most
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# "safe" configuration, but it imposes a severe performance penalty in the
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# event of an unexpected reboot.
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#
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# In the alternate configuration, the controller assumes that all writes to
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# a mirror complete successfully. In the case of an unclean shutdown,
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# mirror corruption may occur if the controller is reset or power is lost
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# during a disk write. This configuration is more suitable if the system
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# has reliable power, but may be unstable for other reasons.
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#
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CFLAGS+=-DTWE_SHUTDOWN_NOTIFICATION
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#
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# The module can be built to override a compiled-in driver
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#
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#CFLAGS+=-DTWE_OVERRIDE
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.PATH: ${.CURDIR}/../../dev/twe
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KMOD= twe
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SRCS= bus_if.h device_if.h pci_if.h twe.c twe_freebsd.c
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#CFLAGS+=-DTWE_DEBUG=0
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.include <bsd.kmod.mk>
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