FreeBSD src
450a94af7a
We can't call KeFlushQueuedDpcs() during bootstrap (cold == 1), since the flush operation sleeps to wait for completion, and we can't sleep here (clowns will eat us). On an i386 SMP system, if we're loaded/probed/attached during bootstrap, smp_rendezvous() won't run us anywhere except CPU 0 (since the other CPUs aren't launched until later), which means we won't be able to set up the GDTs anywhere except CPU 0. To deal with this case, ctxsw_utow() now checks to see if the TID for the current processor has been properly initialized and sets up the GTD for the current CPU if not. Lastly, in if_ndis.c:ndis_shutdown(), do an ndis_stop() to insure we really halt the NIC and stop interrupts from happening. Note that loading a driver during bootstrap is, unfortunately, kind of a hit or miss sort of proposition. In Windows, the expectation is that by the time a given driver's MiniportInitialize() method is called, the system is already in 'multiuser' state, i.e. it's up and running enough to support all the stuff specified in the NDIS API, which includes the underlying OS-supplied facilities it implicitly depends on, such as having all CPUs running, having the DPC queues initialized, WorkItem threads running, etc. But in UNIX, a lot of that stuff won't work during bootstrap. This causes a problem since we need to call MiniportInitialize() at least once during ndis_attach() in order to find out what kind of NIC we have and learn its station address. What this means is that some cards just plain won't work right if you try to pre-load the driver along with the kernel: they'll only be probed/attach correctly if the driver is kldloaded _after_ the system has reached multiuser. I can't really think of a way around this that would still preserve the ability to use an NDIS device for diskless booting. |
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| contrib | ||
| crypto | ||
| etc | ||
| games | ||
| gnu | ||
| include | ||
| kerberos5 | ||
| lib | ||
| libexec | ||
| release | ||
| rescue | ||
| sbin | ||
| secure | ||
| share | ||
| sys | ||
| tools | ||
| usr.bin | ||
| usr.sbin | ||
| COPYRIGHT | ||
| MAINTAINERS | ||
| Makefile | ||
| Makefile.inc1 | ||
| README | ||
| UPDATING | ||
This is the top level of the FreeBSD source directory. This file was last revised on: $FreeBSD$ For copyright information, please see the file COPYRIGHT in this directory (additional copyright information also exists for some sources in this tree - please see the specific source directories for more information). The Makefile in this directory supports a number of targets for building components (or all) of the FreeBSD source tree, the most commonly used one being ``world'', which rebuilds and installs everything in the FreeBSD system from the source tree except the kernel, the kernel-modules and the contents of /etc. The ``buildkernel'' and ``installkernel'' targets build and install the kernel and the modules (see below). Please see the top of the Makefile in this directory for more information on the standard build targets and compile-time flags. Building a kernel is a somewhat more involved process, documentation for which can be found at: http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig.html And in the config(8) man page. Note: If you want to build and install the kernel with the ``buildkernel'' and ``installkernel'' targets, you might need to build world before. More information is available in the handbook. The sample kernel configuration files reside in the sys/<arch>/conf sub-directory (assuming that you've installed the kernel sources), the file named GENERIC being the one used to build your initial installation kernel. The file NOTES contains entries and documentation for all possible devices, not just those commonly used. It is the successor of the ancient LINT file, but in contrast to LINT, it is not buildable as a kernel but a pure reference and documentation file. Source Roadmap: --------------- bin System/user commands. contrib Packages contributed by 3rd parties. crypto Cryptography stuff (see crypto/README). etc Template files for /etc. games Amusements. gnu Various commands and libraries under the GNU Public License. Please see gnu/COPYING* for more information. include System include files. kerberos5 Kerberos5 (Heimdal) package. lib System libraries. libexec System daemons. release Release building Makefile & associated tools. sbin System commands. secure Cryptographic libraries and commands. share Shared resources. sys Kernel sources. tools Utilities for regression testing and miscellaneous tasks. usr.bin User commands. usr.sbin System administration commands. For information on synchronizing your source tree with one or more of the FreeBSD Project's development branches, please see: http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/synching.html