the PCI bus. When this bit is set, the Max DMA Burst Size
for TX/RX DMA should be no larger than 64 bytes.
Reviewed by: luoqi
Obtained from: (idea from linux driver source)
MFC after: 2 weeks
is read one clock edge too late. This bit is driven low by
slave (as any other input data bits from slave) when the clock
is LOW. The current code did read the bit after the clock was
driven high again.
Reviewed by: luoqi
MFC after: 2 weeks
padding is not specific to non-i386 architectures. It is
caused by non-i386 specific alignment requirements of
fs_swuid,
o Add a CTASSERT to catch a change in the size of struct fs
at compile-time rather than run-time.
Ok'd: gordon
Tested on: i386 ia64
cpu_exthigh and cpu_brand in printcpuinfo() instead of in identify_cpu().
We also only do it for known-good values of cpu_vendor which is a bit more
conservative.
Reviewed by: bde (mostly)
- Add a quirk type for devices whose interrupt properties are actually
attached to their children.
- Flag the "escc" (zs-alike serial controller) device as having this quirk.
- Rework the interrupt discovery code to deal with devices that have more than
one interrupt.
or crypto_kdispatch unless the driver is currently blocked. This eliminates
the context switch to the dispatch thread for virtually all requests.
Note that this change means that for software crypto drivers the caller
will now block until the request is completed and the callback is dispatched
to the callback thread (h/w drivers will typically just dispatch the op to
the device and return quickly). If this is an issue we can either implement
a non-blocking interface in the s/w crypto driver or use either the
"no delay" flag in the crypto request or the "software driver" capability
flag to control what to do.
Sponsored by: Vernier Networks
This abstracts out all the differences I could see between the netbsd
sparc64 and macppc zs drivers. In particular the offsets of the csr and
data registers are different, so we use a separate bus handle for each and
use bus_space_subregion to add the bus specific offsets.
Requested by: benno
will be used to support volume names with the help of a GEOM module (to be
committed). uuid will be used to deal with conflicting volume names (which
doesn't work just yet).
Approved by: mckusick@
requests when the number of free pages is below the reserved threshold.
Previously, VM_ALLOC_ZERO was only honored when the number of free pages
was above the reserved threshold. Honoring it in all cases generally
makes sense, does no harm, and simplifies the code.
print_AMD_foo() functions.
- Add a brand name table for the brand index provided on Intel CPU's in
%ebx after cpuid 1.
- For Intel CPUs, if we don't get a processor name from the extended cpuid
then use the brand index in cpuid_cpuinfo to pick a name from the brand
table and copy that name into cpu_brand.
- Replace the duplicated code to use the extended cpuid to replace
cpu_model with the processor name in the AMD and Transmeta sections of
printcpuinfo() with generic code that replaces cpu_model with
cpu_brand if cpu_brand is not an empty string. We also trim leading
spaces from cpu_brand prior to doing this since at least some processor
names (notably those of Intel CPUs) have leading spaces in the name.
- Give print_AMD_features() its own private regs[] array since
printcpuinfo() doesn't use the one it has anymore.
returned from cpuid 0x80000000.
- Add a cpu_brand char array to hold the processor name returned by
cpuid 0x80000002-0x80000004 on AMD, Intel, Transmeta, and possibly
other CPUs.
- Use cpuid to set cpu_exthigh and read the processor name if it is present
in identify_cpu().
in the mptable. The way this works is that we determine if the system
has hyperthreading and how many logical CPU's should be in each physical
CPU by using the information returned by cpuid. During the first pass of
the mptable, we build a bitmask of the APIC IDs of the CPUs listed in the
mptable. We then scan that bitmask to see if the CPUs are already listed
by the mptable, or if there are any APIC IDs already in use that would
conflict with the APIC IDs of the logical CPUs. If that test succeeds,
then we fixup the count of application processors. Later on during the
second pass of the mptable we create fake processor entries for logical
CPUs and add them to the system.
We only need this type of fixup hack when using the mptable to enumerate
CPUs. The ACPI MADT table properly enumerates all logical CPUs.
so that entities that want to use the post_sync hook to write stuff
to devices and other tidy-up can do so before the device tree is
shot down. eg: da doing a SYNC_CACHE etc. This should get crashdumps
working on mpt devices again, and stops the ia64 boxes locking up
on regular shutdown when da tries to issue the scsi commands to mpt.
Obtained from: njl, gibbs
which expects it to be NULL unless the return value was 0 will work.
Obtained from: TrustedBSD Project
Sponsored by: DARPA, Network Associates Laboratories
repeatedly truncate the same file. Each time the file is truncated,
a buffer is grabbed to store the indirect block numbers that need
to be freed. Those blocks cannot be freed until the inode claiming
them is written to disk. Thus, the number of buffers being held by
soft updates explodes and in extreme cases can run the kernel out
of buffers. The problem can be avoided by doing an fsync on the
file every debug.maxindirdep truncates (currently defaulted to 50).
The fsync causes the inode to be written so that the held buffers
can be freed. The check for excessive buffers is checked as part
of the existing hook for excessive dependencies (softdep_slowdown)
in the truncate code.
Reported by: David Schultz <dschultz@uclink.Berkeley.EDU>
Sponsored by: DARPA & NAI Labs.
MFC after: 3 weeks
so it's value is not sign extended when assigned to the uintmax_t variable
used internally by printf. For example, if bit 31 is set in the cpuid
feature word, then %b would print out the initial value as a 16 character
hexadecimal value. Now it only prints out an 8 character value.
Reviewed by: bde
bus_dmamap_load_mbuf() returned EFBIG.
o Fix mbuf leaks in an error (rare) code path.
o Reuse the TX descriptor if xl_encap() failed instead of
just picking the next one.
o Better error messages.
as separate 16-bit entities. Some of the ring control blocks are
in NIC memory, so they must be referenced using 32-bit accesses.
Smaller accesses have been observed to fail under some conditions.
This caused the rings to be set up wrong, leading to writes by the
card outside of the intended bounds of the rings. This problem was
diagnosed by Michael Barthelow. Don Bowman submitted a patch which
fixed the problem using a slightly different approach.
Reference ring control blocks in NIC memory using a pointer to
volatile.
Parenthesize the BGE_HOSTADDR macro definition properly.
MFC after: 3 days
from the hardware descriptors to avoid the overhead of having a DMA
map for each of them. Bump the number of hardware descriptors to 128,
and use half as many software descriptors for now.
Some minor cleanups.
- remove DPRINTF(), there is a CTR*() for any of them, and KTR is
far more useful to debug this driver.
- some cleanups; remove some unused code and definitions.
map. Use this new feature to implement iommu_dvmamap_load_mbuf() and
iommu_dvmamap_load_uio() functions in terms of a new helper function,
iommu_dvmamap_load_buffer(). Reimplement the iommu_dvmamap_load()
to use it, too.
This requires some changes to the map format; in addition to that,
remove unused or redundant members.
Add SBus and Psycho wrappers for the new functions, and make them
available through the respective DMA tags.
o create a separate tag for each object allocated with bus_dmamem_alloc so
the tag's maxsize is setup appropriately; this reduces memory allocation
for the queue descriptors from 16M to what it should be and also fixes
memory allocation for public key operands
o release bus dma resources on detach so module usage doesn't leak
o remove public key op disable now that bus dma memory allocation is fixed
o collect attach error handling in one place
Sponsored by: Vernier Networks
_nexus_dmamap_load_buffer()
- implement nexus_dmamap_load() in terms of _nexus_dmamap_load_buffer().
Note that this is untested, as this code is not currently used (but
might be later for UPA devices).
- move BUS_DMAMAP_NSEGS to bus_private.h
- disable the ecache flushing in nexus_dmamap_sync(); it should not be
needed, although the docs are not entirely clear on that.
some trick is necessary to prevent further BSD geoms from attaching to
that. Our old trick was to make sure we don't attach to a geom from
the "BSD" class, but this doesn't work if an intermediary geom obscures
this fact. Instead, calculate the MD5 checksum of the label we target
and ask if anybody below us loves that label. If they do we don't.
Coded by: gordon.
- move some constants into iommureg.h
- correct some comments
- use KASSERT() in one place instead of rolling our own
- take a sanity check out of #ifdef DIAGNOSTIC
- fix a syntax error in normally #ifdef'ed out debug code
- tweak the announce message a bit
- remove '\n's from a few panic() calls
- don't use the DVMA base adress the firmware reports; instead, figure
it out from the appropriate register on Sabres and let the IOMMU code
choose it on Psychos. This also makes the IOMMU TSB size freely
selectable.
2.) pass the requesting child device (instead of the bus one) up when
handling interrupt resources
3.) remeber to mark the resource list entry as unused in
sbus_release_resource().
Reported by: scottl (3)
The leak in lseek was introduced in vfs_syscalls.c revision 1.218.
The leak in do_dup was introduced in kern_descrip.c revision 1.158.
Submitted by: iedowse
Otherwise, the scsi devices that it is trying to issue commands to may
have gone away. This is what caused shutdown to hang on ia64 systems
with mpt scsi controllers. The bus system has torn down the device tree
and reset the mpt controller etc, and suddenly along comes dashutdown
and wants to issue a few more scsi commands.... <HANG!>
This shouldn't work on i386 either, but it seems to work solely due
to luck.
Add support for GCC's --test-coverage --profile-arcs options.
Add code to call the functions listed in the .ctors section, these are
used to string the per .o file counter blocks into a linked list.
Add empty __bb_fork_func() to cope with GCC magic gandling of exec*()
named functions.
To add support for other platforms should be trivial, but involves
determining the exact data-types gcc uses on that platform.
Minimum Acceptable Value: _POSIX_LOGIN_NAME_MAX.
The comments at the bottom of this file claim sysconf(3) provides this value,
but it seems sysconf(3) hasn't implemented this yet.
and declare them extern in interrupt.c. This eliminates the need
for ia64_add_sapic(), which is called from sapic.c.
While here, reformat ia64_enable() in interrupt.c to improve
indentation and add a sysctl (machdep.apic) to dump the I/O APIC
entries currently programmed into all I/O APICs. The latter can
help analyze interrupt problems.
Note that the sysctl is not intended as a userland (software)
interface. It may be changed in the future to include counters
so that vmstat -i can make use of it. It may also be removed...
copies of the reload. Note that we use the precomputed itm_reload value
so that we can avoid a division in the kernel. The ia64 cpu does not
have integer divide, so this would have been done by a floating point
operation.
CLOCK_VECTOR and define it as 254, not 255. Vector 255 is already
in use as the AP wakeup vector on the HP rx2600.
This needs to be made more dynamic. The likelyhood of vector 254
being in use is pretty small, but we already have code to assign
vectors to IPIs (see sal.c) and it's preobably better to have a
centralized "vector manager" that hands out vectors based on
some imput (like priority).
called. Otherwise (depending on a non-deterministic sort), the timecounter
code can be initialized before the clock rate has been set (on ia64) and it
assumes hz = 100, rather than the real value of 1024. I'm not sure how much
gets upset by this.
Glanced at by: phk
handleclock itself is trivial.
While here, replace (itc_frequency+hz/2)/hz with itm_reload for
consistency. There's now a single place where we determine the
ITM reload value.
header with M_MOVE_PKTHDR one should not reference the packet header in the
original packet; in this case the code was assuming that m_adj would alter
m_pkthdr.len which stopped happening because M_MOVE_PKTHDR removes the
M_PKTHDR bit from m_flags
Submitted by: Bill Fenner <fenner@research.att.com>
interrupt block). We use the previously hardcoded address as a
default only, but will otherwise use whatever ACPI tells us.
The address can be found in the MADT table header or in the
LAPIC override table entry.
space most of the time, but handles machines with lots of I/O
(S)APICs. We cannot make this more dynamic without breaking the
interface with vmstat. Hence, we need to fix the interface first.
name of unused entries from "intr XXX" to "#XXX". This makes it
easier to debug interrupt problems, because vmstat can be hacked
more easily to dump all interrupt entries that are in use and not
those that have had interrupts.
devices aren't necessarily mapped within 4GB. I/O port addresses
are offsets into the memory mapped I/O port space, which is not
larger than 16MB. No need to convert those to 64 bit types.
Previously all filesystems which relied on specfs to do devices
would have private overrides for vop_std*, so the vop_no* overrides
here had no effect. I overlooked the transitive nature of the vop
vectors when I removed the vop_std* in those filesystems.
Removing the override here restores device node locking to it's
previous modus operandi.
Spotted by: bde
then call do_setopt_accept_filter(so, NULL) which will free the filter
instead of duplicating the code in do_setopt_accept_filter().
Pointed out by: Hiten Pandya <hiten@angelica.unixdaemons.com>
- 'spec' and 'ver' are attributes of a unit rather than a node.
- Report Phy and Link info separatelly.
- Reorder intialization step in fwohci_reset().
- Fix some bogosity with mixing unit numbers and channels, which would only
work for one instance of the device.
- Use a simpler scheme for input and output queueing.
- Use db_alt_break.
o Make the URL of the handbook match reality
o Improve some comments (either wording or formatting)
o Sync with i386: comment-out DDB, INVARIANTS, INVARIANT_SUPPORT
o Add some more SCSI/RAID controllers:
ahd, mpt, asr, ciss, dpt, iir, mly, ida
o Remove support for the parallel port
o Add NICs: em, bge
o Remove NICs: ste, tl, tx, vr, wb
o Enable USB support again, except of the UHCI host controller.
UHCI still hangs the BigSur (=HP i2000) machines, and makes
them useless. The OHCI controller works fine. Note that newer
ia64 boxes based on the Intel host controllers (UHCI or EHCI)
still won't have USB support. We really need to import the
EHCI host controller from NetBSD...
to sort out disk-io from file-io in the vm/buffer/filesystem space.
The intent is to sort VOP_STRATEGY calls into those which operate
on "real" vnodes and those which operate on VCHR vnodes. For
the latter kind, the call will be changed to VOP_SPECSTRATEGY,
possibly conditionally for those places where dual-use happens.
Add a default VOP_SPECSTRATEGY method which will call the normal
VOP_STRATEGY. First time it is called it will print debugging
information. This will only happen if a normal vnode is passed
to VOP_SPECSTRATEGY by mistake.
Add a real VOP_SPECSTRATEGY in specfs, which does what VOP_STRATEGY
does on a VCHR vnode today.
Add a new VOP_STRATEGY method in specfs to catch instances where
the conversion to VOP_SPECSTRATEGY has not yet happened. Handle
the request just like we always did, but first time called print
debugging information.
Apart up to two instances of console messages per boot, this amounts
to a glorified no-op commit.
If you get any of the messages on your console I would very much
like a copy of them mailed to phk@freebsd.org
included in the kernel. Include imgact_elf.c in conf/files, instead of
both imgact_elf32.c and imgact_elf64.c, which will use the default word
size for an architecture as defined in machine/elf.h. Architectures that
wish to build an additional image activator for an alternate word size can
include either imgact_elf32.c or imgact_elf64.c in files.${ARCH}, which
allows it to be dependent on MD options instead of solely on architecture.
Glanced at by: peter
void backtrace(void);
function which will print a backtrace if DDB is in the kernel and an
explanation if not.
This is useful for recording backtraces in non-fatal circumstances and
does not require pollution with DDB #includes in the files where it
is used.
It would of course be nice to have a non-DDB dependent version too,
but since the meat of a backtrace is MD it is probably not worth it.
