supposed to be opaque to the driver, however it is exposed through
several macros which expect certain behavior. In my original
implementation, I used the mappedsystemva member of the structure
to hold a pointer to the buffer and bytecount to hold the length.
It turns out you must use the startva pointer to point to the
page containing the start of the buffer and set byteoffset to
the offset within the page where the buffer starts. So, for a buffer
with address 'baseva,' startva is baseva & ~(PAGE_SIZE -1) and
byteoffset is baseva & (PAGE_SIZE -1). We have to maintain this
convention everywhere that ndis_buffers are used.
Fortunately, Microsoft defines some macros for initializing and
manipulating NDIS_BUFFER structures in ntddk.h. I adapted some
of them for use here and used them where appropriate.
This fixes the discrepancy I observed between how RX'ed packet sizes
were being reported in the Broadcom wireless driver and the sample
ethernet drivers that I've tested. This should also help the
Intel Centrino wireless driver work.
Also try to properly initialize the 802.11 BSS and IBSS channels.
(Sadly, the channel value is meaningless since there's no way
in the existing NDIS API to get/set the channel, but this should
take care of any 'invalid channel (NULL)' messages printed on
the console.
use it, if we ever did. They have been been VERY poorly maintained for
some time, possibly because they were a NOP. FWIW, This brings our table
formats back closer to the other *BSD's.
but *only* for the kernel. We can do this because the kernel is not a
standard C application environment. This would have stopped the recent
mtx_* arg NULL/MTX_DEF mixups from going unnoticed for so long.
broken BIOS. Separate ohci_controller_init() from ohci_init(),
and call ohci_controller_init() at resume process once more.
Discussed on [bsd-nomads:16737] - [bsd-nomads:16746].
Submitted by Hiroyuki Aizu <eyes@navi.org> [bsd-nomads:16741]
methods for USB devices in the same way of uhci driver. But this change
is not complete because some ohci controlers are not initialized completely.
So "kernel: usb0: 1 scheduling overruns" interrupt will generate many times.
This change will be same one in PR kern/60099.
Discussed on [bsd-nomads:16737] - [bsd-nomads:16746].
In NdisQueryBuffer() and NdisQueryBufferSafe(), the vaddr argument is
optional, so test it before trying to dereference it.
Also correct NdisGetFirstBufferFromPacket()/NdisGetFirstBufferFromPacketSafe():
we need to use nb_mappedsystemva from the buffer, not nb_systemva.
routines: NdisUnchainBufferAtBack(), NdisGetFirstBufferFromPacketSafe()
and NdisGetFirstBufferFromPacket(). This should bring us a little
closer to getting the Intel centrino wireless NIC to work.
Note: I have not actually tested these additions since I don't
have a driver that calls them, however they're pretty simple, and
one of them is taken pretty much directly from the Windows ndis.h
header file, so I'm fairly confident they work, but disclaimers
apply.
This guard page would have trapped the problems with the MFC of the PAE
support to RELENG_4 at an earlier point in the sequence of events.
Submitted by: tegge
pmap_init(). Such a large preallocation is unnecessary and wastes
nearly eight megabytes of kernel virtual address space per gigabyte
of managed physical memory.
- Increase UMA_BOOT_PAGES by two. This enables the removal of
pmap_pv_allocf(). (Note: this function was only used during
initialization, specifically, after pmap_init() but before
pmap_init2(). During pmap_init2(), a new allocator is installed.)
- handle multiple Ofw memory regions when determining mem size
- allow currdev to be set as a loader command-line option.
parse() is used to allow future options to be processed.
mincore(2) should check that the page is valid, not just allocated.
Otherwise, it can return a false positive for a page that is not yet
resident because it is being read from disk.
- Make ndis_get_info()/ndis_set_info() sleep on the setdone/getdone
routines if they get back NDIS_STATUS_PENDING.
- Add a bunch of net80211 support so that 802.11 cards can be twiddled
with ifconfig. This still needs more work and is not guaranteed to
work for everyone. It works on my 802.11b/g card anyway.
The problem here is Microsoft doesn't provide a good way to a) learn
all the rates that a card supports (if it has more than 8, you're
kinda hosed) and b) doesn't provide a good way to distinguish between
802.11b, 802.11b/g an 802.11a/b/g cards, so you sort of have to guess.
Setting the SSID and switching between infrastructure/adhoc modes
should work. WEP still needs to be implemented. I can't find any API
for getting/setting the channel other than the registry/sysctl keys.
cpu could have been bogged down with non-transferable load and still not
migrated a new thread to an idle cpu. This required some benchmarking and
tuning to get right as the comment above it suggests.
otherwise they are initialized twice when the code is statically
configured in the kernel because the module load method gets
invoked before the user application calls ip_mrouter_init
o add a mutex to synchronize the module init/done operations; this
sort of was done using the value of ip_mroute but X_ip_mrouter_done
sets it to NULL very early on which can lead to a race against
ip_mrouter_init--using the additional mutex means this is safe now
o don't call ip_mrouter_reset from ip_mrouter_init; this now happens
once at module load and X_ip_mrouter_done does the appropriate
cleanup work to insure the data structures are in a consistent
state so that a subsequent init operation inherits good state
Reviewed by: juli
- In sched_add(), do the idle check prior to the transfer check so that we
don't try to transfer load from an idle cpu. This fixes panics caused by
IPIs on UP machines running SMP kernels.
Reported/Debugged by: seanc
