Date: Mon, 22 Aug 2011 18:36:58 +0000 (UTC) From: John Baldwin <jhb@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r225079 - head/sys/sys Message-ID: <201108221836.p7MIawPg063472@svn.freebsd.org>
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Author: jhb Date: Mon Aug 22 18:36:58 2011 New Revision: 225079 URL: http://svn.freebsd.org/changeset/base/225079 Log: Add two new macros DRIVER_MODULE_ORDERED() and EARLY_DRIVER_MODULE_ORDERED() that allow a module to use an order other than the default of SI_ORDER_MIDDLE when registering a driver. This can be useful for drivers in a kld that contain multiple new-bus drivers as part of one logical device driver. A typical case would be to use SI_ORDER_LAST for the "main" driver to ensure that any other "helper" drivers are registered and available before the "main" driver attempts to attach. Tested by: kib, Jason Harmening jason harmening / gmail Approved by: re (kib) MFC after: 1 week Modified: head/sys/sys/bus.h Modified: head/sys/sys/bus.h ============================================================================== --- head/sys/sys/bus.h Mon Aug 22 16:35:46 2011 (r225078) +++ head/sys/sys/bus.h Mon Aug 22 18:36:58 2011 (r225079) @@ -596,7 +596,8 @@ struct driver_module_data { int dmd_pass; }; -#define EARLY_DRIVER_MODULE(name, busname, driver, devclass, evh, arg, pass) \ +#define EARLY_DRIVER_MODULE_ORDERED(name, busname, driver, devclass, \ + evh, arg, order, pass) \ \ static struct driver_module_data name##_##busname##_driver_mod = { \ evh, arg, \ @@ -612,7 +613,16 @@ static moduledata_t name##_##busname##_m &name##_##busname##_driver_mod \ }; \ DECLARE_MODULE(name##_##busname, name##_##busname##_mod, \ - SI_SUB_DRIVERS, SI_ORDER_MIDDLE) + SI_SUB_DRIVERS, order) + +#define EARLY_DRIVER_MODULE(name, busname, driver, devclass, evh, arg, pass) \ + EARLY_DRIVER_MODULE_ORDERED(name, busname, driver, devclass, \ + evh, arg, SI_ORDER_MIDDLE, pass) + +#define DRIVER_MODULE_ORDERED(name, busname, driver, devclass, evh, arg,\ + order) \ + EARLY_DRIVER_MODULE_ORDERED(name, busname, driver, devclass, \ + evh, arg, order, BUS_PASS_DEFAULT) #define DRIVER_MODULE(name, busname, driver, devclass, evh, arg) \ EARLY_DRIVER_MODULE(name, busname, driver, devclass, evh, arg, \
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