IRQ0 routing on LAPIC-enabled systems.
Add hint.apic.0.clock tunable. Setting it 0 disables using LAPIC timers
as hard-/stat-/profclock sources falling back to using i8254 and rtc timers.
On modern CPUs LAPIC is a part of CPU core which is shutting down when CPU
enters C3 or deeper power state. It makes no problems for interrupt
processing, as chipset wakes up CPU on interrupt triggering. But entering
C3 state kills LAPIC timer and freezes system time, making C3 and deeper
states practically unusable. Using i8254 timer allows to avoid this
problem.
By using i8254 timer my T7700 C2D CPU with UP kernel successfully enters
C3 state, saving more then a Watt of total idle power (>10%) in addition to
all other power-saving techniques.
This technique is not working for SMP yet, as only one CPU receives
timer interrupts. But I think that problem could be fixed by forwarding
interrupts to other CPUs with IPI.
Old implemention used Giant to protect the kernel data structures,
but at the same time called malloc(M_WAITOK), that could cause the
calling thread to sleep and lost Giant protection. User-visible
result was the missed wakeup.
New implementation uses one sx lock per futex. The sx protects
the futex structures and allows to sleep while copyin or copyout
are performed.
Unlike linux, we return EINVAL when FUTEX_CMP_REQUEUE operation
is requested and either caller specified futexes are equial or
second futex already exists. This is acceptable since the situation
can only occur from the application error, and glibc falls back to
old FUTEX_WAKE operation when FUTEX_CMP_REQUEUE returns an error.
Approved by: kib (mentor)
MFC after: 1 month
- Generate fake channel interrupts even if channel busy with previous
request to let it finish. Without this, dumping requests were just queued
and never processed.
- Drop pre-dump requests queue on dumping. ATA code, working in dumping
(interruptless) mode, unable to handle long request queue. Actually, to get
coherent dump we anyway should do as few unrelated actions as possible.
Yukon from common multicast handling code. Yukon uses hash-based
multicast filtering(big endian form) but GENESIS uses perfect
multicast filtering as well as hash-based one(little endian form).
Due to the differences of multicast filtering there is no much
sense to have a common code.
o Remove sk_setmulti() and introduce sk_rxfilter_yukon(),
sk_rxfilter_yukon() that handles multicast filtering setup.
o Have sk_rxfilter_{yukon, genesis} handle promiscuous mode and
nuke sk_setpromisc(). This simplifies ioctl handler as well as
giving a chance to check validity of Rx control register of
Yukon.
o Don't reinitialize controller when IFF_ALLMULTI flags is changed.
o Nuke sk_gmchash(), it's not needed anymore.
o Always reconfigure Rx control register whenever a new multicast
filtering condition is changed. This fixes multicast filtering
setup on Yukon.
PR: kern/134051
- Avoid possible divide-by-zero panic on SMP system when the CPUID is
disabled, unsupported, or buggy.
Submitted by: pluknet (pluknet at gmail dot com)[1]
- Probe supported sleep states from acpi_attach() just once and do not
call AcpiGetSleepTypeData() again. It is redundant because
AcpiEnterSleepStatePrep() does it any way.
- Treat UNKNOWN sleep state as NONE, i.e., "do nothing", and remove obscure
NONE state (ACPI_S_STATES_MAX + 1) to avoid confusions.
- Do not set unsupported sleep states as default button/switch events.
If the default sleep state is not supported, just set it as UNKNOWN/NONE.
- Do not allow sleep state change if the system is not fully up and running.
This should prevent entering S5 state multiple times, which causes strange
behaviours later.
- Make sleep states case-insensitive when they are used with sysctl(8).
For example,
sysctl hw.acpi.lid_switch_state=s1
sysctl hw.acpi.sleep_button_state=none
are now legal and equivalent to the uppercase ones.
active network stack instance. Turning on options VIMAGE at compile
time yields the following changes relative to default kernel build:
1) V_ accessor macros for virtualized variables resolve to structure
fields via base pointers, instead of being resolved as fields in global
structs or plain global variables. As an example, V_ifnet becomes:
options VIMAGE: ((struct vnet_net *) vnet_net)->_ifnet
default build: vnet_net_0._ifnet
options VIMAGE_GLOBALS: ifnet
2) INIT_VNET_* macros will declare and set up base pointers to be used
by V_ accessor macros, instead of resolving to whitespace:
INIT_VNET_NET(ifp->if_vnet); becomes
struct vnet_net *vnet_net = (ifp->if_vnet)->mod_data[VNET_MOD_NET];
3) Memory for vnet modules registered via vnet_mod_register() is now
allocated at run time in sys/kern/kern_vimage.c, instead of per vnet
module structs being declared as globals. If required, vnet modules
can now request the framework to provide them with allocated bzeroed
memory by filling in the vmi_size field in their vmi_modinfo structures.
4) structs socket, ifnet, inpcbinfo, tcpcb and syncache_head are
extended to hold a pointer to the parent vnet. options VIMAGE builds
will fill in those fields as required.
5) curvnet is introduced as a new global variable in options VIMAGE
builds, always pointing to the default and only struct vnet.
6) struct sysctl_oid has been extended with additional two fields to
store major and minor virtualization module identifiers, oid_v_subs and
oid_v_mod. SYSCTL_V_* family of macros will fill in those fields
accordingly, and store the offset in the appropriate vnet container
struct in oid_arg1.
In sysctl handlers dealing with virtualized sysctls, the
SYSCTL_RESOLVE_V_ARG1() macro will compute the address of the target
variable and make it available in arg1 variable for further processing.
Unused fields in structs vnet_inet, vnet_inet6 and vnet_ipfw have
been deleted.
Reviewed by: bz, rwatson
Approved by: julian (mentor)
Feature is controlled by hint.ata.X.pm_level tunable:
0 - PM disabled, old behaviour, default.
1 - device is allowed to initiate PM state change, host is passive.
2 - host initiates PARTIAL state transition every time port is idle.
3 - host initiates SLUMBER state transition every time port is idle.
PARTIAL state has up to 100us (50us for me) wakeup latency, but for my
ICH8M saves 0.5W of power per drive. SLUMBER state has up to 10ms (3.5ms
for me) wakeup latency, but saves 0.8W of power.
Modes 2 and 3 are implemented only for AHCI driver now.
Interface power management is incompatible with device presence detection
(host receives no signal from drive, so unable to monitor it), so later is
disabled when PM is used.
interface as nmount(2). Three new system calls are added:
* jail_set, to create jails and change the parameters of existing jails.
This replaces jail(2).
* jail_get, to read the parameters of existing jails. This replaces the
security.jail.list sysctl.
* jail_remove to kill off a jail's processes and remove the jail.
Most jail parameters may now be changed after creation, and jails may be
set to exist without any attached processes. The current jail(2) system
call still exists, though it is now a stub to jail_set(2).
Approved by: bz (mentor)
import from p4 bms_netdev. Summary of changes:
* Connect netinet6/in6_mcast.c to build.
The legacy KAME KPIs are mostly preserved.
* Eliminate now dead code from ip6_output.c.
Don't do mbuf bingo, we are not going to do RFC 2292 style
CMSG tricks for multicast options as they are not required
by any current IPv6 normative reference.
* Refactor transports (UDP, raw_ip6) to do own mcast filtering.
SCTP, TCP unaffected by this change.
* Add ip6_msource, in6_msource structs to in6_var.h.
* Hookup mld_ifinfo state to in6_ifextra, allocate from
domifattach path.
* Eliminate IN6_LOOKUP_MULTI(), it is no longer referenced.
Kernel consumers which need this should use in6m_lookup().
* Refactor IPv6 socket group memberships to use a vector (like IPv4).
* Update ifmcstat(8) for IPv6 SSM.
* Add witness lock order for IN6_MULTI_LOCK.
* Move IN6_MULTI_LOCK out of lower ip6_output()/ip6_input() paths.
* Introduce IP6STAT_ADD/SUB/INC/DEC as per rwatson's IPv4 cleanup.
* Update carp(4) for new IPv6 SSM KPIs.
* Virtualize ip6_mrouter socket.
Changes mostly localized to IPv6 MROUTING.
* Don't do a local group lookup in MROUTING.
* Kill unused KAME prototypes in6_purgemkludge(), in6_restoremkludge().
* Preserve KAME DAD timer jitter behaviour in MLDv1 compatibility mode.
* Bump __FreeBSD_version to 800084.
* Update UPDATING.
NOTE WELL:
* This code hasn't been tested against real MLDv2 queriers
(yet), although the on-wire protocol has been verified in Wireshark.
* There are a few unresolved issues in the socket layer APIs to
do with scope ID propagation.
* There is a LOR present in ip6_output()'s use of
in6_setscope() which needs to be resolved. See comments in mld6.c.
This is believed to be benign and can't be avoided for the moment
without re-introducing an indirect netisr.
This work was mostly derived from the IGMPv3 implementation, and
has been sponsored by a third party.
This has the effect that IPv6 multicast traffic won't trigger
an SPI allocation when IPSEC is in use, however, this obviously
needs to stomp on locks, and IN6_LOOKUP_MULTI() is about to go away.
This definitely needs to be revisited before 8.x is branched as
a release branch.
for use by MLDv2.
Add IPv6 SSM socket layer membership vector size constants and
tree bounds.
Remove unreferenced struct ipv6_mreq_source; SSM for IPv6 goes
straight to the RFC 3678 socket options.
incorrectly output, if the RB-tree enumeration happened to reuse the
same chain for a mode switch: that is, both ALLOW and BLOCK records
were appended for the same group, in the same mbuf packet chain.
This was introduced during an mbuf chain layout bug fix involving
m_getptr(), which obviously cannot count from offset 0 on the
second pass through the RB-tree when serializing the IGMPv3
group records into the pending mbuf chain.
Cut over to KTR_INET for IGMPv3 CTR usage.
respectively, as placeholder for future use of CTR() by
the networking code (MLDv2 will be going in shortly).
Mark KTR_SPARE* as being used in fact by cxgb (picked up
on a 'make universe' run).
topology of nehalem/corei7 based systems.
- Remove the cpu_cores/cpu_logical detection from identcpu.
- Describe the layout of the system in cpu_mp_announce().
Sponsored by: Nokia
and it only optimized out an ipi or mwait in very few cases.
- Skip the adaptive idle code when running on SMT or HTT cores. This
just wastes cpu time that could be used on a busy thread on the same
core.
- Rename CG_FLAG_THREAD to CG_FLAG_SMT to be more descriptive. Re-use
CG_FLAG_THREAD to mean SMT or HTT.
Sponsored by: Nokia
root cpuset of that jail.
Processes inside the jail will still be able to change child sets.
A superuser outside of a jail will still be able to change the jail cpuset
and thus limit the number of cpus available to the jail.
Problem reported by: 000.fbsd@quip.cz (Miroslav Lachman)
PR: kern/134050
Reviewed by: jeff
MFC after: 3 weeks
X-MFC: backout r191596
- Add some missing const.
- Move the size of the window spun by the registers to the softc
as neither using va_mem_size for this nor va_mem_base for the
start of the bus addresses is appropriate.
MFC after: 1 week
This change adds (possibly redundant) early check for invalid
state input parameter (including S0). Handling of S5 request
is reduced to simply calling shutdown_nice(). As a result
control flow of acpi_EnterSleepState is somewhat simplified
and resume/backout half of the function is not executed
for S5 (soft poweroff) request and invalid state requests.
Note: it seems that shutdown_nice may act as nop when initproc
is already initialized (to grab pid of 1), but init process is in
"pre-natal" state.
Tested by: Fabian Keil <fk@fabiankeil.de>
Reviewed by: njl, jkim
Approved by: rpaulo
KAME had explicit checks at one point using it, so just hide it behind
#if 0 for now until we are sure if we can completely dump it or not.
MFC after: 1 month
used for s/w retransmit schemes that want to access this information
w/o the overhead of decoding the raw frame. Note this also allows
drivers to record this information w/o writing the frame when the seq#
is obtained through an out-of-band mechanism (e.g. when a h/w assigned
seq# is reported in a descriptor on tx done notification).
Reviewed by: sephe, avatar
processed by ipfw once - avoid second ipfw_chk() call.
This saves us from unnecessary IPFW_RLOCK(), m_tag_find() calls and
ip/tcp/udp header parsing.
MFC after: 2 month
controllers may be configured as legacy IDE mode by modifying subclass and
progif without actually changing PCI device IDs. Instead of complicating
code, we always force AHCI mode while probing. Also we restore AHCI mode
while resuming per ATI/AMD register programming/requirement guides.
- Fix SB700/800 "combined" mode. Unlike SB600, this PATA controller can
combine two SATA ports and emulate one PATA channel as primary or secondary
depending on BIOS configuration. When the combined mode is disabled, this
channel disappears and it works just like SB600 PATA controller, however.
- Add more PCI device IDs for SB700/800 and adjust device descriptions.
SB800 shares the same PCI device IDs and added two more SATA IDs.
the nfsv4 Change attribute. There are 2 changes:
1 - The value now changes on metadata changes as well as data
modifications (incremented for IN_CHANGE instead of IN_UPDATE).
2 - It is now saved in spare space in the on-disk i-node so that it
survives a crash.
Since va_filerev is not passed out into user space, the only current
use of va_filerev is in the nfs server, which uses it as the directory
cookie verifier. Since this verifier is only passed back to the server
by a client verbatim and then the server doesn't check it, changing the
semantics should not break anything currently in FreeBSD.
Reviewed by: bde
Approved by: kib (mentor)
this driver to compile and limp along with the new layer. These changes
do not deal with proper locking around access to the HW. This is only
a starting point. I have not tested modem control but tip seems to work
okay and I can send and receive characters which I needed for one of my
-current boxes. I have not tied this driver back up to the build since
I don't want people to think it is ready for prime time. If anyone
else has some cycles to work on this feel free to!
Also add support for a 16 port PCI interface I have at work.
Glanced at by: ed
- Update mxge to use if_transmit(), and the new buf_ring
interfaces, so as to enable multiple transmit queues.
Use of if_transmit() is conditional on IFNET_BUF_RING,
and is enabled by default (as in if_em).
- Record a flow id on receive if receive hashing is active.
I currently only record the rx ring id (0..8) rather than
the 32-bit topelitz hash result, as doing the latter would
require shifting the driver to use a larger rx return ring.
Sponsored by: Myricom, Inc.
rearrange / replace / adjust several INIT_VNET_* initializer
macros, all of which currently resolve to whitespace.
Reviewed by: bz (an older version of the patch)
Approved by: julian (mentor)
Instead of using the antique insque()/remque() functions from
sys/queue.h, make this code use its own versions. Eventually the code
should just use the regular TAILQ/LIST macros.
(colloquially known as if_addrlist). Currently not acquired around
interface address loops that call out to the routing code due to
potential lock order issues.
MFC after: 3 weeks
initialize / release netgraph related state in iattach() / idetach()
functions called via the vnet module registration / initialization
framework, instead of initialization / cleanups being done in
mod_event handlers.
While here, introduce a crude hack aimed at preventing ng_ether to
autoattach to ng_eiface ifnets, which are also netgraph nodes already.
Reviewed by: bz
Approved by: julian (mentor)
first introduced @ r190909 with a vnet module deregistration
service.
kldunloadable modules, which are currently using vnet_mod_register()
to attach their per-vnet initialization routines to the vnet
initialization framework, should call vnet_mod_deregister() before
acknowledging MOD_UNLOAD requests in their mod_event handlers. Such
changes to the existing code base will follow in subsequent commits.
vnet_mod_deregister() does not check whether departing vnet modules
are registered as prerequisites for another module(s), so it should
be used with care. Currently I'm only aware of vnet modules which
are leafs on module dependency graphs that are kldunloadable.
This change also introduces per-vnet module destructor handler, which
calls vnet's module cleanup function, which (if required) has to be
registered in vnet module's vnet_modinfo_t structure .vmi_idetach
field. Once options VIMAGE becomes operational, the framework will
take care that module's cleanup function become invoked for each
active vnet instance, and that the memory allocated for each instance
gets freed. Currently calls to destructor handlers must always
succeed.
lookup of 'ia' from if_addrhead through most use. Note that we
currently have to drop it prematurely in some cases due to calls out to
the routing and interface code while using 'ia', but this closes many
races. Annotate several potential races that persist after this change.
Move to using M_NOWAIT for allocating new interface addresses due to
lock(s) being held.
MFC after: 3 weeks
This allows users to increase the maximum amount of pseudo-terminals
without changing any source code. Users must increase UT_LINESIZE before
attempting to increase kern.pts_maxdev.
pmap_clear_modify() on a page is pointless if that page is not mapped or
it is only mapped for read access. Instead, assert that the page is not
mapped or not mapped for write access as appropriate.
Eliminate unnecessary clearing of a page's dirty mask. Instead, assert
that the page's dirty mask is clear.
of the implementation of ioctls. This makes the mapping of ioctls to
specific privileges more explicit, and also simplifies the
implementation by reducing the use of FALLTHROUGH handling in switch.
While this is not intended to be a functional change, it does mean
that certain privilege checks are now performed earlier, so EPERM
might be returned in preference to EADDRNOTAVAIL for management
ioctls that could have failed for both reasons.
MFC after: 3 weeks
When memory is not zero'ed by firmware, uninitialized PCB can have bogus
contents, which appear as a saved onfault condition, Altivec context to
restore etc. and lead to corruption/crashes. This commit fixes such issues.
Submitted by: Michal Mazur arg ! semihalf dot com
Tested by: Andreas Tobler andreast-list ! fgznet dot ch
controller in the VIA southbridge functional in the CDS
(Configurable Development System) for MPC85XX.
The embedded USB controllers look operational but the
interrupt steering is still wrong.
that it is easier to lock:
- Handle the unsupported ioctl case at the beginning of in_control(),
handing off to ifp->if_ioctl, rather than looking up interfaces and
addresses unnecessarily in this case.
- Make it an invariant that ifp is always non-NULL when running
in_control()-implemented ioctls, simplifying the code structure.
MFC after: 3 weeks
vmopag" implementation. The vm_page_lookup() code modifies splay tree
of the object pages, and asserts that object lock is taken. First issue
could cause kernel data corruption, and second one instantly panics the
INVARIANTS-enabled kernel.
Take the advantage of the fact that object->memq is ordered by page index,
and iterate over memq to calculate the runs.
While there, make the code slightly more style-compliant by moving
variables declarations to the right place.
Discussed with: jhb, alc
Reviewed by: alc
MFC after: 2 weeks
used in some cases):
- Ignore DMA tag boundaries when allocating bounce pages. The boundaries
don't determine whether or not parts of a DMA request bounce. Instead,
they are just used to carve up segments.
- Allow tags with sub-page alignment to share bounce pages since bounce
pages are always page aligned.
Reviewed by: scottl (amd64)
MFC after: 1 month
(1) Don't manually configure if_output(), ether_ifattach() will do that
for us as part of link-layer setup.
(2) Call if_detach() before stopping nve in order to prevent calls into
the device driver after the driver has started shutting down.
Reviewed by: jhb
MFC after: 2 weeks
interface pointer, but also a reference to it.
Modify ifioctl() to use ifunit_ref(), holding the reference until
all ioctls, etc, have completed.
This closes a class of reader-writer races in which interfaces
could be removed during long-running ioctls, leading to crashes.
Many other consumers of ifunit() should now use ifunit_ref() to
avoid similar races.
MFC after: 3 weeks
pointers to "dead" implementations that no-op rather than invoking
the device driver. This would generally be unexpected and
possibly quite badly handled by most device drivers after
if_detach() has completed.
Reviewed by: bms
MFC after: 3 weeks
if_alloc(), and portions of data structure destruction from if_detach()
to if_free(). These changes leave more of the struct ifnet in a
safe-to-access condition between alloc and attach, and between detach
and free, and focus on attach/detach as stack usage events rather than
data structure initialization.
Affected fields include the linkstate task queue, if_afdata lock,
address lists, kqueue state, and MAC labels. ifq_attach() ifq_detach()
are not moved as ifq_attach() may use a queue length set by the device
driver between if_alloc() and if_attach().
MFC after: 3 weeks
calls if_free(), and remains set if the refcount is elevated. IF_DYING
skips the bit in the if_flags bitmask previously used by IFF_NEEDSGIANT,
so that an MFC can be done without changing which bit is used, as
IFF_NEEDSGIANT is still present in 7.x.
ifnet_byindex_ref() checks for IFF_DYING and returns NULL if it is set,
preventing new references from by acquired by index, preventing
monitoring sysctls from seeing it. Other lookup mechanisms currently
do not check IFF_DYING, but may need to in the future.
MFC after: 3 weeks
operates in the common memory mode and use polling mode to control
the status of operations as I don't have any board with interrupt
line routed yet. I'll add the GPIO interrupt driven mode as soon
as I get one.
logical CPUs in a package. We do this by numbering the non-boot CPUs
by starting with the first CPU whose APIC ID is after the boot CPU and
wrapping back around to APIC ID 0 if needed rather than always starting
at APIC ID 0. While here, adjust the cpu_mp_announce() routine to list
CPUs based on the mapping established by assign_cpu_ids() rather than
making assumptions about the algorithm assign_cpu_ids() uses.
MFC after: 1 month
Change the roothub exec functions to take the usb request and data pointers
directly rather than placing them on the parent bus struct.
Submitted by: Hans Petter Selasky
Fix a bug in the USB power daemon code where connection of multiple HUBs in
series would result in incorrect device suspend.
Reported by: Nicolas xxx@wanadoo.fr
Submitted by: Hans Petter Selasky
Use direct reference to parent high-speed HUB instead of indirect, due to
pointer clearing race at detach of parent USB HUB.
Reported by: kientzle
Submitted by: Hans Petter Selasky
PR: usb/133545
respectivly. This will allow one to have a kernel with both devices
present and use it for multiple boards with different types of RTC
sitting on a bus.
Discussed with: imp
after the corresponding interface has been destroyed:
(1) Add an ifnet refcount, ifp->if_refcount. Initialize it to 1 in
if_alloc(), and modify if_free_type() to decrement and check the
refcount.
(2) Add new if_ref() and if_rele() interfaces to allow kernel code
walking global interface lists to release IFNET_[RW]LOCK() yet
keep the ifnet stable. Currently, if_rele() is a no-op wrapper
around if_free(), but this may change in the future.
(3) Add new ifnet field, if_alloctype, which caches the type passed
to if_alloc(), but unlike if_type, won't be changed by drivers.
This allows asynchronous free's of the interface after the
driver has released it to still use the right type. Use that
instead of the type passed to if_free_type(), but assert that
they are the same (might have to rethink this if that doesn't
work out).
(4) Add a new ifnet_byindex_ref(), which looks up an interface by
index and returns a reference rather than a pointer to it.
(5) Fix if_alloc() to fully initialize the if_addr_mtx before hooking
up the ifnet to global lists.
(6) Modify sysctls in if_mib.c to use ifnet_byindex_ref() and release
the ifnet when done.
When this change is MFC'd, it will need to replace if_ispare fields
rather than adding new fields in order to avoid breaking the binary
interface. Once this change is MFC'd, if_free_type() should be
removed, as its 'type' argument is now optional.
This refcount is not appropriate for counting mbuf pkthdr references,
and also not for counting entry into the device driver via ifnet
function pointers. An rmlock may be appropriate for the latter.
Rather, this is about ensuring data structure stability when reaching
an ifnet via global ifnet lists and tables followed by copy in or out
of userspace.
MFC after: 3 weeks
Reported by: mdtancsa
Reviewed by: brooks
The main problem is that sbappendrecord_locked() relies on sbcompress()
to set sb_mbtail. This will not happen if sbappendrecord_locked() is
called with mbuf chain made of exactly one mbuf (i.e. m0->m_next == NULL).
In this case sbcompress() will be called with m == NULL and will do
nothing. I'm not entirely sure if m == NULL is a valid argument for
sbcompress(), and, it rather pointless to call it like that, but keep
calling it so it can do SBLASTMBUFCHK().
The problem is triggered by the SOCKBUF_DEBUG kernel option that
enables SBLASTRECORDCHK() and SBLASTMBUFCHK() checks.
PR: kern/126742
Investigated by: pluknet < pluknet -at- gmail -dot- com >
No response from: freebsd-current@, freebsd-bluetooth@
MFC after: 3 days
Include opt_ddb.h for that. Now you can actually boot with
-d and set breakpoints using function names.
o Make sure to include opt_msgbuf.h.
o Carve out the first 1MB of physical memory. The MPC85xx has
DMA problems with addresses below 1MB. Ideally busdma knows
how to avoid allocating below 1MB for MPC85xx, but that
requires a bit more work. For now, ignore the 1MB of DRAM.
Match the bracketing in netstat.
Since the cleanup of MROUTING, ports have broken because they
expect to include <netinet/ip_mroute.h> without including
<sys/queue.h>. Fix breakage at source.
The real fix, of course, is to fix the MROUTING APIs by blowing them
away and replacing them with something else...
number of queued packets in watchdog timeout handler. If there are
no queued packets just print a informational message and return
without resetting controller. Also fix to invoke correct Tx
completion handler as 3C905B needs different handler.
Previously it used to clear the flag only when the transmit queue
is empty which may slow down Tx performance.
While I'm here check whether driver is running and whether we can
queue more packets in if_start handler. This fixes occasional
watchdog timeouts.
Reported by: xer < xernet <> hotmail dot it >
Tested by: xer < xernet <> hotmail dot it >
iterate the interface address list. Marginally expand IF_ADDR_LOCK()
coverage in mld6.c to make sure it's held when IFP_TO_IA6() is called.
MFC after: 2 weeks
the same inode number after VFS_VGET() and relock of the vp. If '..'
changed, redo the lookup. To reduce code duplication, move the code to
read '..' dirent into the static helper function ufs_dir_dd_ino().
Supply the source inode number as an argument to ufs_checkpath() instead
of the source inode itself. The inode is unlocked, thus it might be
reclaimed, causing accesses to the freed memory.
Use vn_vget_ino() to get the '..' vnode by its inode number, instead of
directly code VFS_VGET() and relock, to properly busy the mount point
while vp lock is dropped.
Noted and reviewed by: tegge
Tested by: pho
MFC after: 1 month
variable. Acquire the interface address list lock when iterating over
the interface address list searching for a matching received broadcast
address.
MFC after: 2 weeks
or ignored SIGCHLD, unconditionally wake up the parent instead of doing
this only when the child is a last child.
This brings us in line with other U**xes that support SA_NOCLDWAIT. If
the parent called waitpid(childpid), then exit of the child should wake
up the parent immediately instead of forcing it to wait for all children
to exit.
Reported by: Alan Ferrency <alan pair com>
Submitted by: Jilles Tjoelker <jilles stack nl>
PR: 108390
MFC after: 2 weeks
a fair number of static data structures, making this an unlikely
option to try to change without also changing source code. [1]
Change default cache line size on ia64, sparc64, and sun4v to 128
bytes, as this was what rtld-elf was already using on those
platforms. [2]
Suggested by: bde [1], jhb [2]
MFC after: 2 weeks
The device index number stored in the unit number of sa(4) devices is
only used to print debug messages. Get rid of this index number and use
devtoname() to just print the entire device name.
checksum offload frames. Software workaround used for broken
controllers(RTL8169, RTL8168, RTL8168B) seem to cause watchdog
timeouts on RTL8139C+.
Introduce a new flag RL_FLAG_AUTOPAD to mark automatic padding
feature of controller and set it for RTL8139C+ and controllers that
use new descriptor format. This fixes watchdog timeouts seen on
RTL8139C+.
Reported by: Dimitri Rodis < DimitriR <> integritasystems dot com >
Tested by: Dimitri Rodis < DimitriR <> integritasystems dot com >
Introduce pmap_try_insert_pv_entry(), a function that conditionally
creates a pv entry if the number of entries is below the high water mark
for pv entries.
Introduce pmap_enter_quick_locked() and use it to reimplement
pmap_enter_object(). The old implementation was broken. For example,
it could block while holding a mutex lock.
Change pmap_enter_quick_locked() to fail rather than wait if it is
unable to allocate a page table page. This prevents a race between
pmap_enter_object() and the page daemon. Specifically, an inactive
page that is a successor to the page that was given to
pmap_enter_quick_locked() might become a cache page while
pmap_enter_quick_locked() waits and later pmap_enter_object() maps
the cache page violating the invariant that cache pages are never
mapped. Similarly, change
pmap_enter_quick_locked() to call pmap_try_insert_pv_entry() rather
than pmap_insert_entry(). Generally speaking,
pmap_enter_quick_locked() is used to create speculative mappings. So,
it should not try hard to allocate memory if free memory is scarce.
Tested by: gonzo
login(1) isn't quite ready for them yet on 64-bit systems as it continues
to use the conventions of the old version of the API.
Reported by: stas, Jakub Lach <jakub_lach at mailplus.pl>
the vmspace of the examined process instead of directly accessing its
vmspace, that may change. Also, as an optimization, check for P_INEXEC
flag before examining the process.
Reported and tested by: pho (previous version)
Reviewed by: alc
MFC after: 3 week
CACHE_LINE_SIZE constant. These constants are intended to
over-estimate the cache line size, and be used at compile-time
when a run-time tuning alternative isn't appropriate or
available.
Defaults for all architectures are 64 bytes, except powerpc
where it is 128 bytes (used on G5 systems).
MFC after: 2 weeks
Discussed on: arch@
OpenBSM history for imported revision below for reference.
MFC after: 2 weeks
Sponsored by: Apple, Inc.
Obtained from: TrustedBSD Project
OpenBSM 1.1
- Change auditon(2) parameters and data structures to be 32/64-bit architecture
independent. Add more information to man page about auditon(2) parameters.
- Add wrapper functions for auditon(2) to use legacy commands when the new
commands are not supported.
- Add default for 'expire-after' in audit_control to expire trail files when
the audit directory is more than 10 megabytes ('10M').
- Interface to convert between local and BSM fcntl(2) command values has been
added: au_bsm_to_fcntl_cmd(3) and au_fcntl_cmd_to_bsm(3), along with
definitions of constants in audit_fcntl.h.
- A bug, introduced in OpenBSM 1.1 alpha 4, in which AUT_RETURN32 tokens
generated by audit_submit(3) were improperly encoded has been fixed.
- Fix example in audit_submit(3) man page. Also, make it clear that we want
the audit ID as the argument.
- A new audit event class 'aa', for post-login authentication and
authorization events, has been added.
since the last imported OpenBSM release:
OpenBSM 1.1
- Change auditon(2) parameters and data structures to be 32/64-bit architecture
independent. Add more information to man page about auditon(2) parameters.
- Add wrapper functions for auditon(2) to use legacy commands when the new
commands are not supported.
- Add default for 'expire-after' in audit_control to expire trail files when
the audit directory is more than 10 megabytes ('10M').
- Interface to convert between local and BSM fcntl(2) command values has been
added: au_bsm_to_fcntl_cmd(3) and au_fcntl_cmd_to_bsm(3), along with
definitions of constants in audit_fcntl.h.
- A bug, introduced in OpenBSM 1.1 alpha 4, in which AUT_RETURN32 tokens
generated by audit_submit(3) were improperly encoded has been fixed.
- Fix example in audit_submit(3) man page. Also, make it clear that we want
the audit ID as the argument.
- A new audit event class 'aa', for post-login authentication and
authorization events, has been added.
Obtained from: TrustedBSD Project
Sponsored by: Apple, Inc.
- Add and use mapping of fcntl(2) commands to new BSM constant space.
- Adopt (int) rather than (long) arguments to a number of auditon(2)
commands, as has happened in Solaris, and add compatibility code to
handle the old comments.
Note that BSM_PF_IEEE80211 is partially but not fully removed, as the
userspace OpenBSM 1.1alpha5 code still depends on it. Once userspace
is updated, I'll GCC the kernel constant.
MFC after: 2 weeks
Sponsored by: Apple, Inc.
Obtained from: TrustedBSD Project
Portions submitted by: sson
Glibc does not use this operation since 2.3.3 version (Jun 2004),
as it is racy and replaced by FUTEX_CMP_REQUEUE operation.
Glibc versions prior to 2.3.3 fall back to FUTEX_WAKE when
FUTEX_REQUEUE returned EINVAL.
Any application directly using FUTEX_REQUEUE without return
value checking are definitely broken.
Limit quantity of messages per process about unsupported
operation.
Approved by: kib (mentor)
MFC after: 1 month
as kernel modules will need to be rebuilt. These fields existed to support
binary compatibility with kernel modules from before the introduction of
libmemstat(3) in FreeBSD 6.x, so they are no longer required.
replace magic numbers with constants to keep this from happening again.
Without this fix, some programs would occasionally get SIGTRAP instead
of SIGILL on an illegal instruction. This affected Altivec detection
in pixman, and possibly other software.
Reported by: Andreas Tobler
MFC after: 1 week
error if '..' is still there but changed between lookup and check.
Start relookup instead. Rename is supposed to change '..' reference
atomically, so transient failures introduced by r191137 are wrong.
While rearranging the code to allow lookup restart in ufs_lookup(),
remove the comment that only distracts the reader.
Noted and reviewed by: tegge
Also reported by: pho
MFC after: 1 month
- fix bug where tail pointer of the free list would not get advanced
- clear entry's next pointer when it is added to the freelist to avoid freeing
an entry that it still points to
busy count. Only mappings that allow write access should be prevented by
a non-zero busy count.
(The prohibition on mapping pages for read access when they have a non-
zero busy count originated in revision 1.202 of i386/i386/pmap.c when
this code was a part of the pmap.)
Reviewed by: tegge
as well as providing stateful load balancing when used with RADIX_MPATH.
- Currently compiled in to i386 and amd64 but disabled by default, it can be enabled at
runtime with 'sysctl net.inet.flowtable.enable=1'.
- Embedded users can remove it entirely from the kernel by adding 'nooption FLOWTABLE' to
their kernel config files.
- A minimal hookup will be added to ip_output in a subsequent commit. I would like to see
more review before bringing in changes that require more churn.
Supported by: Bitgravity Inc.
as the renaming only changes internal gvinum names and will not alter the geom
topology.
- The topology lock was not held when calling g_wither_geom after renaming.
registers.
- Cleanup PCI-X capability printf to not leave a dangling "supports" for
some PCI-X bridges.
- Display additional PCI express details including the negotiated and max
link width and the actual and maximum supported max payload.
MFC after: 1 month
a tag that has BUS_DMA_KEEP_PG_OFFSET set. Otherwise the page could be
reused with a non-zero offset by a tag that doesn't have
BUS_DMA_KEEP_PG_OFFSET leading to data corruption.
Sleuthing by: avg
Reviewed by: scottl
when polled mode is enabled. This should help with duplicated/missing
characters problem at mountroot, geli, etc. prompts on multi CPU systems
while kbdmux(4) is enabled.
Tested by: Tobias Grosser <grosser -at- fim -dot- uni-passau -dot- de>
Tested by: Fabian Keil <freebsd-listen -at- fabiankeil -dot- de>
MFC after: 3 days
audit_bsm_fcntl.c contain utility routines to map local fcntl
commands into BSM constants. Adaptation to the FreeBSD kernel
environment will follow in a future commit.
Sponsored by: Apple, Inc.
Obtained from: TrustedBSD Project
MFC after: 2 weeks
use to identify if the socket is the same one that a cached request
came in on. It is set by nfsrvd_addsock() to a unique value generated
by incrementing an unsigned 64bit static variable for each assignment
and then the value of xp_sockref is tested to see if it is equal to
the value that was saved with the cached reply.
Submitted by: rmacklem
Reviewed by: dfr
Approved by: kib (mentor)
network load.
1. Leave the RX interrupt routine if there is no mbuf available.
2. Properly initialize and track tx_desc_used_count counter so as not to
leak mbuf while traversing used descriptors.
Obtained from: Semihalf
VFS_VGET() has returned in ufs_lookup(). If the '..' lookup started
immediately before the parent directory was removed, we might return
either cleared or unrelated inode otherwise.
Ufs_lookup() is split into new function ufs_lookup_() that either does
lookup, or verifies that directory entry exists and references supplied
inode number.
Reviewed by: tegge
Tested by: pho,
Andreas Tobler <andreast-list fgznet ch> (previous version)
MFC after: 1 month
naming of the partitions (GEOM_PART_EBR_COMPAT). When
compatibility is enabled, changes to the partitioning are
disallowed.
Remove the device name aliasing added previously to provide
backward compatibility, but which in practice doesn't give
us anything.
Enable compatibility on amd64 and i386.
In the good old days it was possible to have dev_t's that referred to
nonexistent devices. In these cases devtoname() automatically generated
names. This is no longer possible, so remove this dead code.
Discussed with: kib
Remove the `udev' variable, which has a different type than the original
function argument and si_drv0. The `udev' name is also misleading,
because it is not the number returned by dev2udev(). Rename this
argument to `unit'. It is the same number as returned by dev2unit().
We should still access si_drv0 using dev2unit(). Also change the
KASSERT() to really print the udev instead of the unit number. I suspect
it's still useful to print the unit number, especially for devices that
use clone lists, so keep the unit number in the panic string.
- Do not iterate int 15h, function e820h twice. Instead, we use STAILQ to
store each return buffer and copy all at once.
- Export optional extended attributes defined in ACPI 3.0 as separate
metadata. Currently, there are only two bits defined in the specification.
For example, if the descriptor has extended attributes and it is not
enabled, it has to be ignored by OS. We may implement it in the kernel
later if it is necessary and proven correct in reality.
- Check return buffer size strictly as suggested in ACPI 3.0.
Reviewed by: jhb
- add show as alias for get
- add weights to allow mpath to do more than equal cost
- add sticky / nostick to disable / re-enable per-connection load balancing
This adds a field to rt_metrics_lite so network bits of world will need to be re-built.
Reviewed by: jeli & qingli
- Remove redundant softc members for RIDs.
- Change some softc members to be unsigned where more appropriate.
- Add some missing const.
- Remove support for mmap(2)'ing VGA I/O as it was broken [1] and
not required by X.Org anyway.
- Fix some confusion between bus, physical and virtual addresses
which mostly consisted in using members of struct video_adapter
inappropriately but wasn't fatal except for the regular framebuffer
mmap(2)'ing.
- Remove redundant bzero(9)'ing of the softc.
- Don't map the framebuffer twice in case the firmware has already
mapped it as besides wasting resources this isn't possible with
all MMUs. This is a bit tricky as a) just because the firmware
provides a property with a virtual address doesn't mean it's
actually mapped (but typically is when the framebuffer is the
console) and b) the firmware doesn't necessarily map the it with
the same byteorder as we do. This make machfb(4) work on machines
with cheetah-class MMUs (including X.Org).
Reported by: Michael Plass [1]
MFC after: 3 days
addresses to BARs into new pci_read_bar() and pci_write_bar() routines.
pci_add_map(), pci_alloc_map(), and pci_delete_resource() now use these
routines to work with BARs.
- Just pass the device_t for the new PCI device to various routines instead
of passing the device, bus, slot, and function.
Reviewed by: imp
open partition. This fixes access to partitions whose starting offset
is >= 2 TB.
Submitted by: "James R. Van Artsdalen" james jrv.org
MFC after: 3 days
we recognize its a retransmit, ahead of the PR-SCTP
work. Without this fix, we end up NOT reducing flight
size and causing an miscalculation when PR-SCTP is active
and data is skipped.
Obtained from: Michael Tuexen.
identify a station operating in turbo-boost mode because it has a
pure ofdm rate set; add an explicit check for the channel type
instead of depending on IEEE80211_NODE_ERP being set
Remote host can advertise smaller MSS than that of sender so upper
stack might have adjusted the MSS which in turn generates IP
packets that are less size than that of interface MTU.
Reported by: Bjoern Koenig ( bkoenig <> alpha-tierchen dot de )
Tested by: Bjoern Koenig ( bkoenig <> alpha-tierchen dot de )
MFC after: 3 days
in sys/nfs/nfs_nfssvc.c by registering with it using the
nfsd_call_nfsserver function pointer. Also, add the build glue for
nfs_nfssvc.c optionally based on "nfsserver" and also as a loadable
module.
Submitted by: rmacklem
Reviewed by: kib
Approved by: kib (mentor)
and CARPSTATS_INC(), rather than directly manipulating the fields of
the structure. This will make it easier to change the implementation
of these statistics, such as using per-CPU versions of the data
structure.
MFC after: 3 days
and PIMSTAT_INC(), rather than directly manipulating the fields of
the structure. This will make it easier to change the
implementation of these statistics, such as using per-CPU versions
of the data structure.
MFC after: 3 days
and MRTSTAT_INC(), rather than directly manipulating the fields of
the structure. This will make it easier to change the
implementation of these statistics, such as using per-CPU versions
of the data structure.
MFC after: 3 days
IGMPSTAT_ADD() and IGMPSTAT_INC(), rather than directly
manipulating the fields of the structure. This will make it
easier to change the implementation of these statistics,
such as using per-CPU versions of the data structures.
MFC after: 3 days
macros: ICMPSTAT_ADD(), ICMPSTAT_INC(), ICMP6STAT_ADD(), and
ICMP6STAT_INC(), rather than directly manipulating the fields
of these structures across the kernel. This will make it
easier to change the implementation of these statistics,
such as using per-CPU versions of the data structures.
In on case, icmp6stat members are manipulated indirectly, by
icmp6_errcount(), and this will require further work to fix
for per-CPU stats.
MFC after: 3 days
Update stats in struct udpstat using two new macros, UDPSTAT_ADD()
and UDPSTAT_INC(), rather than directly manipulating the fields
across the kernel. This will make it easier to change the
implementation of these statistics, such as using per-CPU versions
of the data structures.
MFC after: 3 days
and UDPSTAT_INC(), rather than directly manipulating the fields
across the kernel. This will make it easier to change the
implementation of these statistics, such as using per-CPU versions
of the data structures.
MFC after: 3 days
CPUs known to use 128 byte cache lines and defaulting to 32, use the dcbz
instruction to measure it. Also make dcbz behave the way you would
expect on PPC 970.
IPSTAT_INC(), IPSTAT_SUB(), and IPSTAT_DEC(), rather than directly
manipulating the fields across the kernel. This will make it easier
to change the implementation of these statistics, such as using
per-CPU versions of the data structures.
MFC after: 3 days
TCPSTAT_INC(), rather than directly manipulating the fields across the
kernel. This will make it easier to change the implementation of
these statistics, such as using per-CPU versions of the data structures.
MFC after: 3 days
but do not actually invoke KDB. This includes recoverable machine checks
encountered in kernel mode.
This patch causes machines with Grackle host-PCI bridges to be able to
correctly enumerate them again.
MFC after: 3 days
not populated in parent directory if negative entry was being
created, yet entry itself was added to the nc_neg list. It was
possible for parent vnode to get discarded later, leaving negative
entry pointing to now unused memory block.
Reported by: dho
Revewed by: kib
-UdpAliasIn(): correctly check return code after modules ran.
-alias_nbt: in case of malformed packets (or some other unrecoverable
error), toss the packet.
Simplify in/out functions.
Remove a hack to generate more efficient code for port numbers below
0x100, which has been obsolete for at least ten years, because GCC has
an asm constraint to specify that.
Remove a hack to generate more efficient code for port numbers below
0x100, which has been obsolete for at least ten years, because GCC has
an asm constraint to specify that.
Submitted by: Christoph Mallon <christoph mallon gmx de>
a reservation, unless all of the reservation's pages were free, the
reservation was moved to the head of the partially-populated reservations
queue, where it would be the next reservation to be broken in case the
free page queues were emptied. Now, instead, I am moving it to the tail.
Very likely this reservation is in the process of being freed in its
entirety, so placing it at the tail of the queue makes it more likely that
the underlying physical memory will be returned to the free page queues as
one contiguous chunk. If a reservation must be broken, it will, instead,
be the longest unchanged reservation, which is arguably the reservation
that is least likely to ever achieve promotion or be freed in its entirety.
MFC after: 6 weeks
dependency tracking and ordering enforcement.
With this change, per-vnet initialization functions introduced with
r190787 are no longer directly called from traditional initialization
functions (which cc in most cases inlined to pre-r190787 code), but are
instead registered via the vnet framework first, and are invoked only
after all prerequisite modules have been initialized. In the long run,
this framework should allow us to both initialize and dismantle
multiple vnet instances in a correct order.
The problem this change aims to solve is how to replay the
initialization sequence of various network stack components, which
have been traditionally triggered via different mechanisms (SYSINIT,
protosw). Note that this initialization sequence was and still can be
subtly different depending on whether certain pieces of code have been
statically compiled into the kernel, loaded as modules by boot
loader, or kldloaded at run time.
The approach is simple - we record the initialization sequence
established by the traditional mechanisms whenever vnet_mod_register()
is called for a particular vnet module. The vnet_mod_register_multi()
variant allows a single initializer function to be registered multiple
times but with different arguments - currently this is only used in
kern/uipc_domain.c by net_add_domain() with different struct domain *
as arguments, which allows for protosw-registered initialization
routines to be invoked in a correct order by the new vnet
initialization framework.
For the purpose of identifying vnet modules, each vnet module has to
have a unique ID, which is statically assigned in sys/vimage.h.
Dynamic assignment of vnet module IDs is not supported yet.
A vnet module may specify a single prerequisite module at registration
time by filling in the vmi_dependson field of its vnet_modinfo struct
with the ID of the module it depends on. Unless specified otherwise,
all vnet modules depend on VNET_MOD_NET (container for ifnet list head,
rt_tables etc.), which thus has to and will always be initialized
first. The framework will panic if it detects any unresolved
dependencies before completing system initialization. Detection of
unresolved dependencies for vnet modules registered after boot
(kldloaded modules) is not provided.
Note that the fact that each module can specify only a single
prerequisite may become problematic in the long run. In particular,
INET6 depends on INET being already instantiated, due to TCP / UDP
structures residing in INET container. IPSEC also depends on INET,
which will in turn additionally complicate making INET6-only kernel
configs a reality.
The entire registration framework can be compiled out by turning on the
VIMAGE_GLOBALS kernel config option.
Reviewed by: bz
Approved by: julian (mentor)
1) Flag it and only access that command on the 3c1
2) The TX PLL appears to power down when not in use, so we have to power
it back up when we've been idle. Do this at the start of ifstart.
Otherwise we fall off the net.
have other media to test against, I've left that media reporting
unchanged.
o Enable the TX_PLL when we enable TX. This is harmless on most
cards, but required to get the 3c1 CF card working. Power savings
could be had by managing this better, but for now it gets my card
working.
when using the "self" keyword in tables or as ()-style host address and
fixes "ifconfig -g all" output.
PR: kern/130977, kern/131310
Submitted by: Mikolaj Golub
MFC after: 3 days
the removal of NQNFS, but was left in in case it was required for NFSv4.
Since our new NFSv4 client and server can't use it for their
requirements, GC the old mechanism, as well as other unused lease-
related code and interfaces.
Due to its impact on kernel programming and binary interfaces, this
change should not be MFC'd.
Proposed by: jeff
Reviewed by: jeff
Discussed with: rmacklem, zach loafman @ isilon
Check the condition and return ENOENT then.
In nfs_lookup(), respect ENOENT return from cache_lookup() when it is caused
by dvp reclaim.
Reported and tested by: pho
the mappings without any of read and execution rights, in particular,
the PROT_NONE entries. This makes mlockall(2) work for the process
address space that has such mappings.
Since protection mode of the entry may change between setting
MAP_ENTRY_IN_TRANSITION and final pass over the region that records
the wire status of the entries, allocate new map entry flag
MAP_ENTRY_WIRE_SKIPPED to mark the skipped PROT_NONE entries.
Reported and tested by: Hans Ottevanger <fbsdhackers beasties demon nl>
Reviewed by: alc
MFC after: 3 weeks
types of MAC overheads such as preambles, link level retransmissions
and more.
Note- this commit changes the userland/kernel ABI for pipes
(but not for ordinary firewall rules) so you need to rebuild
kernel and /sbin/ipfw to use dummynet features.
Please check the manpage for details on the new feature.
The MFC would be trivial but it breaks the ABI, so it will
be postponed until after 7.2 is released.
Interested users are welcome to apply the patch manually
to their RELENG_7 tree.
Work supported by the European Commission, Projects Onelab and
Onelab2 (contract 224263).
We typically wire translation to devices with TLB1 entries and
pmap_kextract() does not know about those and returns 0. This
causes false positives (read: all serial ports suddenly become
the console).
Do not use Giant for kbdmux(4) locking. This is wrong and apparently
causing more problems than it solves. This will re-open the issue
where interrupt handlers may race with kbdmux(4) in polling mode.
Typical symptoms include (but not limited to) duplicated and/or
missing characters when low level console functions (such as gets)
are used while interrupts are enabled (for example geli password
prompt, mountroot prompt etc.)
MFC after: 3 days
Most compilers nowadays (including GCC) are smart enough to know what's
going on and generate more efficient code anyway.
Submitted by: Christoph Mallon <christoph.mallon@gmx.de>
It turns out my handling of SIGTTOU and SIGTTIN didn't entirely comply
to the standards. It is true that in the SIGTTOU case we should not
return EIO when the signal is ignored/blocked, but in the SIGTTIN case
we must.
See also: POSIX issue 7 section 11.1.4
(framing, parity, etc), but does not indicate characters
being received. Since no chracters have been received,
ignore the line errors.
PR: 131006
MFC after: 3 days
the size and cost of name cache entries, but make adding debugging
and tracing easier.
Add SDT DTrace probes for various namecache events:
vfs:namecache:enter:done - new entry in the name cache, passed parent
directory vnode pointer, name added to the cache, and child vnode
pointer.
vfs:namecache:enter_negative:done - new negative entry in the name cache,
passed parent vnode pointer, name added to the cache.
vfs:namecache:fullpath:enter - call to vn_fullpath1() is made, passed
the vnode to resolve to a name.
vfs:namecache:fullpath:hit - vn_fullpath1() successfully resolved a
search for the parent of an object using the namecache, passed the
discovered parent directory vnode pointer, name, and child vnode
pointer.
vfs:namecache:fullpath:miss - vn_fullpath1() failed to resolve a search
for the parent of an object using the namecache, passed the child
vnode pointer.
vfs:namecache:fullpath:return - vn_fullpath1() has completed, passed the
error number, and if that is zero, the vnode to resolve, and the
returned path.
vfs:namecache:lookup:hit - postive name cache entry hit, passed the
parent directory vnode pointer, name, and child vnode pointer.
vfs:namecache:lookup:hit_negative - negative name cache entry hit,
passed the parent directory vnode pointer and name.
vfs:namecache:lookup:miss - name cache miss, passed the parent directory
pointer and the full remaining component name (not terminated after the
cache miss component).
vfs:namecache:purge:done - name cache purge for a vnode, passed the vnode
pointer to purge.
vfs:namecache:purge_negative:done - name cache purge of negative entries
for children of a vnode, passed the vnode pointer to purge.
vfs:namecache:purgevfs - name cache purge for a mountpoint, passed the
mount pointer. Separate probes will also be invoked for each cache
entry zapped.
vfs:namecache:zap:done - name cache entry zapped, passed the parent
directory vnode pointer, name, and child vnode pointer.
vfs:namecache:zap_negative:done - negative name cache entry zapped,
passed the parent directory vnode pointer and name.
For any probes involving an extant name cache entry (enter, hit, zapp),
we use the nul-terminated string for the name component. For misses,
the remainder of the path, including later components, is provided as
an argument instead since there is no handy nul-terminated version of
the string around. This is arguably a bug.
MFC after: 1 month
Sponsored by: Google, Inc.
Reviewed by: jhb, kan, kib (earlier version)
Because the "c" input constaint is used, the compiler will already place
the MSR_FSBASE/MSR_GSBASE constants in ecx. Using __asm("ecx") makes
LLVM crash. Even though this is also an LLVM bug, we'd better remove the
unnecessary GCCism as well.
Submitted by: Christoph Mallon <christoph.mallon@gmx.de>
sharing of the nfssvc() system call between nfsserver and the nfsv4
server. Building of nfs_nfssvc.c will be committed later, at the time
the .c files in sys/nfsserver are updated. To do so now would result in
nfssvc() multiply defined.
Submitted by: rmacklem
Reviewed by: dfr
Approved by: kib (mentor)
- First three fields of system UUID may be little-endian as described in
SMBIOS Specification v2.6. For now, we keep the network byte order for
backward compatibility (and consistency with popular dmidecode tool)
if SMBIOS table revision is less than 2.6. However, little-endian format
can be forced by defining BOOT_LITTLE_ENDIAN_UUID from make.conf(5) if it
is necessary.
- Replace overly ambitious optimizations with more readable code.
- Update comments to SMBIOS Specification v2.6 and clean up style(9) bugs.
instead of just register one for the first adapter. Without doing this
there would be some data loss upon shutdown because data could be ignored
when flushing to disk.
MFC after: 3 days
- override_kernel_driver() has been removed since this is an
in-tree version of driver.
- __DATE__ and __TIME__ removed from version string to make
binary update builders happy.
- Utilize pause(9) for __FreeBSDversion >= 700033 (redo 167086).
- Utilize kproc_suspend_check() for __FreeBSDversion >= 800002.
(redo 172836).
- Don't read past end of pVDevice (redo 143787).
- Make sure that controller and channel are initialized (redo 169823).
- Don't include cam/cam_xpt_periph.h (redo 158177).
MFC After: 3 days
and update comments about original patches doing this and it not
working. It works for both the DL10019 and DL10022 based cards that I
have. It really helps the DL10019 cards, since they were using 8k
instead of the normal 16k that regular NE-2000 cards help.
# Note to self: need to provide a common routine to setup memory
# parameters.
more adequate TCP performance with IPv6.
Changes for IPv4, r166403 and r172795, both ignored the
IPv6 counterpart and left it in the state of art of year 2000.
The same logic in syncache already shares code between v4 and v6 so
things do not need to be adapted there.
Reported by: Steinar Haug (sthaug nethelp.no)
Tested by: Steinar Haug (sthaug nethelp.no)
MFC after: 3 days
DP8390-based cards have no generic way of reporting status of the link
or setting the media type. Some specific versions of these cards do,
however, allow for this, and we already support some of them. Make
the 'ed' experience more uniform by providing "autoselect" as the
meida and status "active" always. This won't affect the chips that
provide more specific details.
from existing functions for initializing global state.
At this stage, the new per-vnet initializer functions are
directly called from the existing global initialization code,
which should in most cases result in compiler inlining those
new functions, hence yielding a near-zero functional change.
Modify the existing initializer functions which are invoked via
protosw, like ip_init() et. al., to allow them to be invoked
multiple times, i.e. per each vnet. Global state, if any,
is initialized only if such functions are called within the
context of vnet0, which will be determined via the
IS_DEFAULT_VNET(curvnet) check (currently always true).
While here, V_irtualize a few remaining global UMA zones
used by net/netinet/netipsec networking code. While it is
not yet clear to me or anybody else whether this is the right
thing to do, at this stage this makes the code more readable,
and makes it easier to track uncollected UMA-zone-backed
objects on vnet removal. In the long run, it's quite possible
that some form of shared use of UMA zone pools among multiple
vnets should be considered.
Bump __FreeBSD_version due to changes in layout of structs
vnet_ipfw, vnet_inet and vnet_net.
Approved by: julian (mentor)
an NFS node including the access and attribute caches. Previously the NFS
client only purged any name cache entries associated with the file.
PR: kern/123755
Submitted by: Jaakko Heinonen jh of saunalahti fi
Reported by: Timo Sirainen tss of iki fi
Reviewed by: rwatson, rmacklem
MFC after: 1 month
client from 30 seconds to 3 seconds. After the recent changes to add
caching of negative name cache lookups, a negative name cache hit will
persist until the client notices the parent directory has changed. The
higher the attribute cache timeout on directories, the longer that can take,
so lower the default timeout for directories to match that of regular files.
Suggested by: bde, mohans
MFC after: 1 month
It makes little sense to use 100 Hz polling in dcons. We cannot live
without polling, because that's just how dcons works. It polls the
buffer filled by the firewire hardware. 25 Hz is probably enough for
most use cases.
Discussed with: rwatson
Tested by: kan
vfs:namei:lookup:entry takes parent directory vnode pointer, path to
look up, and lookup flags.
vfs:namei:lookup:return takes an error value, and if successful, the
returned vnode pointer.
MFC after: 1 month
dcons_drv_init invocations. Testing return value for 0 does not work for
cases where dcons_drv_init was called already as part of low level
console initialization.
Refactor how we interface with the root HUB. This is achieved by making a
direct call from usb2_do_request to the host controller for root hub requests,
this call will perform the controller specific register read/writes and return
the error code.
This cuts out a lot of code in the host controller files and saves one thread
per USB bus.
Submitted by: Hans Petter Selasky
Not only did these two drivers depend on IFF_NEEDSGIANT, they were
broken 7 months ago during the MPSAFE TTY import. if_ppp(4) has been
replaced by ppp(8). There is no replacement for if_sl(4).
If we see regressions in for example the ports tree, we should just use
__FreeBSD_version 800045 to check whether if_ppp(4) and if_sl(4) are
present. Version 800045 is used to denote the import of MPSAFE TTY.
Discussed with: rwatson, but also rwatson's IFF_NEEDSGIANT emails on the
lists.
- add support for more complicated HID descriptors which can have multiple
definitions of the same field.
- remove old modulo patch in ums, which I think is due to bad HID parsing,
which should be fixed now.
Reported by: netchild
Submitted by: Hans Petter Selasky
at91_udp.c does not exist anymore, it is now replaced by at91dci in
src/sys/dev/usb/controller. Also remove the ohci_atmelarm.c because it is also
included in src/sys/conf/files
Submitted by: Sylvestre Gallon
Some cancelable flags are always true. Substitute these away. These cancelable
flags were mostly useful with the root HUB which is now handled differently.
Submitted by: Hans Petter Selasky
Refactor how we interface with the root HUB. This cuts around 1200 lines of
code totally and saves one thread per USB bus.
Submitted by: Hans Petter Selasky
- make usb2_power_mask_t 16-bit
- remove "usb2_config_sub" structure from "usb2_config". To compensate for this
"usb2_config" has a new field called "usb_mode" which select for which mode
the current xfer entry is active. Options are: a) Device mode only b) Host
mode only (default-by-zero) c) Both modes. This change was scripted using
the following sed script: "s/\.mh\././g".
- the standard packet size table in "usb_transfer.c" is now a function, hence
the code for the function uses less memory than the table itself.
Submitted by: Hans Petter Selasky
- bugfixes after the memory usage reduction patch
- Use "udev->pipes_max" instead of USB_EP_MAX
- Use correct "bmRequestType" for getting the config descriptor.
Submitted by: Hans Petter Selasky
- memory usage reduction by only allocating the required USB pipes and USB
interfaces.
- cleanup some USB parsing functions to be more flexible.
Submitted by: Hans Petter Selasky
1) Move the new field (brand_note) to the end of the Brandinfo structure.
2) Add a new flag BI_BRAND_NOTE that indicates that the brand_note pointer
is valid.
3) Use the brand_note field if the flag BI_BRAND_NOTE is set and as old
modules won't have the flag set, so the new field brand_note would be
ignored.
Suggested by: jhb
Reviewed by: jhb
Approved by: kib (mentor)
MFC after: 6 days
but I see no benefit from it today.
VM_PROT_READ_IS_EXEC was only intended for use on processors that do not
distinguish between read and execute permission. On an mmap(2) or
mprotect(2), it automatically added execute permission if the caller
specified permissions included read permission. The hope was that this
would reduce the number of vm map entries needed to implement an address
space because there would be fewer neighboring vm map entries that differed
only in the presence or absence of VM_PROT_EXECUTE. (See vm/vm_mmap.c
revision 1.56.)
Today, I don't see any real applications that benefit from
VM_PROT_READ_IS_EXEC. In any case, vm map entries are now organized
as a self-adjusting binary search tree instead of an ordered list. So,
the need for coalescing vm map entries is not as great as it once was.
being switched out may hold a reservation. The stwcx. will
clear the reservation. This is architecturally recommended.
The scenario this addresses is as follows:
1. Thread 1 performs a lwarx and as such holds a reservation.
2. Thread 1 gets switched out (before doing the matching
stwcx.) and thread 2 is switched in.
3. Thread 2 performs a stwcx. to the same reservation granule.
This will succeed because the processor has the reservation
even though thread 2 didn't do the lwarx.
Note that on some processors the address given the stwcx. is
not checked. On these processors the mere condition of having
a reservation would cause the stwcx. to succeed, irrespective
of whether the addresses are the same. The dummy stwcx. is
especially important for those processors.
- Fix style for A3N and for a comment
Submitted by: Akira Funahashi <funa@funa.org>
Tested by: Marcin Nowak <marcin.nowak@simplusnet.pl>,
Diego Sardina <diego.sardina@gmx.com>
PR: kern/128634
in the case where a single mbuf is allocated due to
m_getcl() returning NULL, we already call MH_ALIGN,
so do not increment m->m_data in this case.
Found during MLDv2 port.
The later may need blocks from the underlying device that belongs
to normal files, that should not be locked while snap lock is held.
Reported and tested by: pho
MFC after: 1 month
- PR-SCTP had major issues when skipping through a multi-part message.
o Did not look at socket buffer.
o Did not properly handle the reassmebly queue.
o The MARKED segments could interfere and un-skip a chunk causing
a problem with the proper FWD-TSN.
o No FR of FWD-TSN's was being done.
- NR-Sack code was basically disabled. It needed fixes that
never got into the real code.
- CMT code had issues when the two paths were NOT the same b/w. We
found a few small bugs, but also the critcal one here was not
dividing the rwnd amongst the paths.
Obtained from: Michael Tuexen and myself at the IETF hack-fest ;-)
on a generic dumper that creates an ELF core file and
uses PMAP functions to scan and iterate over memory
chunks, as well as handle memory mappings used during
dumping.
the PMAP layer can choose to return physical memory
chunks or virtual memory chunks. For minidumps, the
chunks should be virtual.
The default MMU I/F implementation for the scan_md()
method returns NULL. Thus, when a PMAP implementation
does not implement the required methods, an empty
core file is created. Here, empty means having an ELF
header only.
Obtained from: Juniper Networks
the ATA status register with a 4-byte read request. This updates it, and
subsequent 1-byte reads will return the correct result.
This commit adds a hack to do this, which is currently ifdef'd powerpc,
although Linux and Darwin do this unconditionally on all platforms.
provided, for example, on the PowerPC 970 (G5), as well as on related CPUs
like the POWER3 and POWER4.
This also adds support for various built-in hardware found on Apple G5
hardware (e.g. the IBM CPC925 northbridge).
Reviewed by: grehan
to be encapsulated before dispatching to the driver
o eliminate M_WDS now that we call ieee80211_encap directly and can supply
the wds vap to indicate a 4-address frame should be created
The DIROUT bit difference between the 19 and 22 is annoying. We can
set both bits on both parts without ill effect. Use this trick to
simplify the code.
The DELAYS in the MII bus bit-bang code for the DL100xx parts aren't
needed. Eliminate them.
packet data. However, the AX88190A moves this on-chip and reduces it
to the more traditional 16k from 16k-32k. The AX88790 follows the
'190A. Probe memory above 32k to see which flavor of the '190 we have
and use the extra memory if we have it.
Eliminate the kludgy read eeprom for the ID code. It really is just a
memory read at location 0x400, so just use that instead. Makes the
code easier to understand as well as eliminates some magic numbers.
ed cards. There's a number of minor nits in a lot of the PHYs on the
PC Cards that use the Axis AX88190 or DLink DL10019 and DL10022 chips.
Forcing the autonegotiation doesn't seem to cause problems on the
cards that have sane PHYs, but makes several cards I have work without
further workarounds.
I'm not 100% sure that kicking the PHY and resetting them is the right
thing to do on the media change callback. Other NICs seem to need
this and do similar things.
only for mic-type inputs. This gives better chances to use it.
Change default configuration for some AD1986A codec based ASUS boards,
use it also for ASUS P5PL2 board. This makes front mic preamplifier working.
Tested by: Vadim Frolov <frolov@frolov.ck.ua>
the arguments translations. Provide ABI-compatible definition of the
struct i386_ldt_args for freebsd32 compat layer.
In collaboration with: pho
Reviewed by: jhb
the kernel on amd64. Fill and read segment registers for mcontext and
signals. Handle traps caused by restoration of the
invalidated selectors.
Implement user-mode creation and manipulation of the process-specific
LDT descriptors for amd64, see sysarch(2).
Implement support for TSS i/o port access permission bitmap for amd64.
Context-switch LDT and TSS. Do not save and restore segment registers on
the context switch, that is handled by kernel enter/leave trampolines
now. Remove segment restore code from the signal trampolines for
freebsd/amd64, freebsd/ia32 and linux/i386 for the same reason.
Implement amd64-specific compat shims for sysarch.
Linuxolator (temporary ?) switched to use gsbase for thread_area pointer.
TODO:
Currently, gdb is not adapted to show segment registers from struct reg.
Also, no machine-depended ptrace command is added to set segment
registers for debugged process.
In collaboration with: pho
Discussed with: peter
Reviewed by: jhb
Linuxolator tested by: dchagin
Reorder amd64 gdt descriptors so that user-accessible selectors are the
same as on i386. At least Wine hard-codes this into the binary.
In collaboration with: pho
Reviewed by: jhb
Provides i386/freebsd API-compatible definitions for the argument
structures of the above sysarch commands. struct i386_ioperm_args
definition is ABI-compatible.
In collaboration with: pho
Reviewed by: jhb
To keep these structures ABI-compatible, half the size of r_trapno,
r_err, mc_trapno, mc_flags.
Add fsbase and gsbase to mcontext on both amd64 and i386.
Add flags to amd64 mcontext to indicate that it contains valid segments
or bases.
In collaboration with: pho
Discussed with: peter
Reviewed by: jhb
to the virtual one. I may had a reason at some point to use the later, but
can't remember which, and it can leads to issues.
Reported by: Guillaume Ballet <gballet gmail com>
as 'real memory' instead of Maxmem if the value is available.
Note amd64 displayed physmem as 'usable memory' since machdep.c r1.640
to unconfuse users. Now it is consistent across amd64 and i386 again.
While I am here, clean up smbios.c a bit and update copyright date.
Reviewed by: jhb
o Don't run through the register initialization in the read mac routine
for the AX88x90. It duplicates other stuff that we do.
o Eliminate the 10ms delay after we reset the AX88x90. We already wait for
the appropriate bits to indicate reset is done.
a device specific DMA tag. On amd64 it could exhaust all of bounce
pages when bus_dma_tag_create(9) is called at malo_pci_attach() then as
result in next turn it returns ENOMEM. This fix a attach fail on amd64.
Pointed by: yongari
Tested by: dchagin
MFC after: 3 days
It seems that RTL8168D and RTL8102EL requires additional settle
time to complete RL_PHYAR register write. Accessing RL_PHYAR
register right after the write causes errors for subsequent PHY
register accesses.
Tested by: george at luckytele dot com,
Steve Wills < STEVE at stevenwills dot com >
don't have one of the clock cycles (the turn cycle) that the AX88x90
chips have. Make this conditional. But this seems totally crazy and
can't possibly be right. Commit the fix for the moment until I can
explore this mystery more deeply.
On the plus side, the DL10022-based cards I have (D-Link DEF-670TXD
and SMC8040TX) work after this fix.
Add ch_suspend/ch_resume methods for PCI controllers and implement them
for AHCI. Refactor AHCI channel initialization according to it.
Fix Port Multipliers operation. It is far from perfect yet, but works now.
Tested with JMicron JMB363 AHCI + SiI 3726 PMP pair.
Previous version was also tested with SiI 4726 PMP.
Hardware sponsored by: Vitsch Electronics / VEHosting.nl
o call ieee80211_encap in ieee80211_start so frames passed down to drivers
are already encapsulated
o remove ieee80211_encap calls in drivers
o fixup wi so it recreates the 802.3 head it requires from the 802.11
header contents
o move fast-frame aggregation from ath to net80211 (conditional on
IEEE80211_SUPPORT_SUPERG):
- aggregation is now done in ieee80211_start; it is enabled when the
packets/sec exceeds ieee80211_ffppsmin (net.wlan.ffppsmin) and frames
are held on a staging queue according to ieee80211_ffagemax
(net.wlan.ffagemax) to wait for a frame to combine with
- drivers must call back to age/flush the staging queue (ath does this
on tx done, at swba, and on rx according to the state of the tx queues
and/or the contents of the staging queue)
- remove fast-frame-related data structures from ath
- add ieee80211_ff_node_init and ieee80211_ff_node_cleanup to handle
per-node fast-frames state (we reuse 11n tx ampdu state)
o change ieee80211_encap calling convention to include an explicit vap
so frames coming through a WDS vap are recognized w/o setting M_WDS
With these changes any device able to tx/rx 3Kbyte+ frames can use fast-frames.
Reviewed by: thompsa, rpaulo, avatar, imp, sephe
o Introduce new chip_type AX88790. There's a few places we need to know the
exact chip for workaronds.
o Explain the AX88190 workaround for the ISR bits being stuck, and don't
apply them to the AX88790. The datasheet says the bits are fixed, and
experience confirms.
o Fix mii bit-bang read code to read and discard the 'floating' bit.
o Remove empty ed_pccard_ax88x90_mii_reset routine
o Report error from mii_phy_probe
o Don't use ed_probe_Novel_generic for ax88x90 chips. It puts them into
an odd state sometimes. Instead, use a more stream-lined version that
avoids the trouble spots. This was copied and tweaked from the original.
o Move chip reset into its own routine.
o Minor code optimiation on getting MAC address
o Add code for coping with AX88790 cards that are in power down state and
need to be kicked before the PHY registers for the internal phy read right.
o Remove ugly cap of PHYs at 17.
o For AX88790, we need to set a special bit for accessig phy 16 (the internal
phy) and clear it for all others according to a chip erratum.
o streamline the bit-bang code for AX88x90: the delays aren't needed according
to the datasheet timing diagrams and also the Linux driver
o Fix minor bit definition for direction bit.
o Generally: Some comments reformatted
o Only try the toshiba probe on cards labelled as toshiba
# From another Akihabara card (this one from a few years ago from a
# friend in Japan). Fix the Corega FEther II PCC-TXD. This one is
# still on sale new, as of a few weeks ago. should fix all other AX88x90
# based cards, but I have some testing left to finish on my collection...
o PC98 uses 32-bit block numbers. Limit the scheme to 2^32-1
blocks when the media is larger. The 32-bit block numbers
are implicit (16-bit cylinder * 8-bit head * 8-bit sector).
o EBR uses 32-bit block numbers. Limit the scheme to 2^32-1
blocks when the media is larger.
o Calculate the number of entries based on the rounded media
size, rather than the raw media size.
in directory vnodes. Allow namecache dotdot entry to be created pointing
from child vnode to parent vnode if no existing links in opposite
direction exist. Use direct link from parent to child for dotdot lookups
otherwise.
This restores more efficient dotdot caching in NFS filesystems which
was lost when vnodes stoppped being type stable.
Reviewed by: kib
It's quite strange that nobody reported this issue before. It turns out
functions like ttyname(), ptsname() and fdevname() don't work in
compat32. This means it't not even possible to run applications like
script(1) inside a 32-bit FreeBSD jail.
Fix this by converting 32-bit fiodgname_arg structures to their 64-bit
equivalent.
Reported by: kris
Tested by: kris
o remove ic_myaddr from ieee80211com
o change ieee80211_ifattach to take the mac address of the physical device
and use that to setup the lladdr.
o replace all references to ic_myaddr in drivers by IF_LLADDR
o related cleanups (e.g. kill dead code)
PR: kern/133178
Reviewed by: thompsa, rpaulo
provider namespace. These are inserted dynamically into the
VOP_..._AP() functions created from vnode_if.src. Each VOP has
entry and return probes, as arg0 the primary vnode, arg1 the
vnode operation argument structure pointer, providing access to
IN and OUT arguments, and for return probes, arg2 the return
value.
MFC after: 1 month
Sponsored by: Google, Inc.
src/sys and not the entire src/ tree.
An earlier solution by peter had been comitted in r183528 and backed out
in r183566 due to problems with newvers.sh also called from other places
during world build. With the extra test this survived a make universe.
The work have been under testing and fixing since then, and it is mature enough
to be put into HEAD for further testing.
A lot have changed in this time, and here are the most important:
- Gvinum now uses one single workerthread instead of one thread for each
volume and each plex. The reason for this is that the previous scheme was
very complex, and was the cause of many of the bugs discovered in gvinum.
Instead, gvinum now uses one worker thread with an event queue, quite
similar to what used in gmirror.
- The rebuild/grow/initialize/parity check routines no longer runs in
separate threads, but are run as regular I/O requests with special flags.
This made it easier to support mounted growing and parity rebuild.
- Support for growing striped and raid5-plexes, meaning that one can extend the
volumes for these plex types in addition to the concat type. Also works while
the volume is mounted.
- Implementation of many of the missing commands from the old vinum:
attach/detach, start (was partially implemented), stop (was partially
implemented), concat, mirror, stripe, raid5 (shortcuts for creating volumes
with one plex of these organizations).
- The parity check and rebuild no longer goes between userland/kernel, meaning
that the gvinum command will not stay and wait forever for the rebuild to
finish. You can instead watch the status with the list command.
- Many problems with gvinum have been reported since 5.x, and some has been hard
to fix due to the complicated architecture. Hopefully, it should be more
stable and better handle edge cases that previously made gvinum crash.
- Failed drives no longer disappears entirely, but now leave behind a dummy
drive that makes sure the original state is not forgotten in case the system
is rebooted between drive failures/swaps.
- Update manpage to reflect new commands and extend it with some examples.
Sponsored by: Google Summer of Code 2007
Mentored by: le
Tested by: Rick C. Petty <rick-freebsd2008 -at- kiwi-computer.com>
It seems that some revision of controller hang while accessing
the VPD. Because VPD access routine are unused, nuke it.
o Let TWSI reload EEPROM if VPD capability is detected. Reloading
EEPROM will also set ethernet address so age(4) now reads AGE_PAR0
and AGE_PAR1 register to get ethernet address. This removes a lot
of hack and enhance readability a lot.
o Double PHY reset timeout as it takes more time to take PHY out of
power-saving state.
o Explicitly check power-saving state by checking undocumented PHY
registers. If link is not up, poke undocumented registers to take
PHY out of power-saving state. This is the same way what Linux
does. On resume, make sure to wake up PHY.
o Don't rely on auto-clearing feature of master reset bit, just wait
1ms and check idle status of MAC.
o Add PCI device revision information in bootverbose mode.
This should fix occasional controller hang in device attach phase.
Reported by: barbara < barbara.xxx1975 at libero DOT it >
Tested by: barbara < barbara.xxx1975 at libero DOT it >
up) rather than amount + 1 / 2, which is the same as amount, or 2x too
many words which leads to data corruption.
# This fixes the sbdrop panics I was seeing with the Toshiba LANCT00A.
Toshiba PCETC ISA card, and even has the same board type code in the
card ID (0x14). So, for this card, call ed_probe_WD80x3_generic after
setting things up apropriately. This makes the card attach and kinda
work (I'm seeing panics in sbdrop). Since history has shown that the
WD80x3 probe routine is dangerous, only do it for this card. Also,
disable the memory range check to make sure it is an valid ISA memory.
I think that it is bogus, but I'm not 100% sure, for these cards.
I removed probing for the WD80x3 in 2005 when I added support for the
AX88x90 and DL100xx cards since none of my cards had ever matched it
and PAO3 removed it and none of the cards in their database died.
It is possible there are other quirks about this card too, since no
other open source OS supports it, or even claims to support it. But
it was a fun half hour hack...
driver. Not sure who sold it/rebadged it.
Add stub entries for Mitsubishi B8895 and Toshiba LANCT00A to the
driver with a comment that they don't work /* NG */.[*] These are
DP83902A based cards, which should work, but don't seem to. Likely
they are from the days before the ne2000 roamed the earth and use a
non-standard hookup (see if_ed_isa or if_ed_cbus for some examples).
Unless I happen to stumble into the right one, these may never work,
but I'm tired of omitting them from commits.
[*] The Japanese adopted OK from English, but also use NG for its
opposite.
typedef l_long l_off_t;
Change l_mmap_argv's to l_ulong for pgoff. This restores prior behaviour
to consumers of l_off_t but allows mmap to mmap a 32bit position which a
Linux application requires to access SMBIOS data via /dev/mem.
Reviewed by: dchagin
Prompted by: rdivacky
rather than behind a seemingly accidental constant likely left over from one of
the related drivers which uses log levels rather than per-facility debugging
flags. This should get rid of contextless messages on the console for people
who have not set (or cleared the default) debugging flags.
o Don't create an APM scheme underneath another scheme when
the probe doesn't allow it.
o APM uses 32-bit block numbers. Limit the scheme to 2^32-1
blocks when the media is larger.
packet. Linux, OpenBSD and our iwn(4) all do this. It also results in
a huge performance improvement (and the rejection of a fair number of
apparently-bad packets on receive) on my hardware.
o) Like the wpi(4) driver in OpenBSD, and like our iwn(4), also drop runt
packets.
o) Don't bother doing IFQ_POLL and then IFQ_DRV_DEQUEUE, just do
IFQ_DRV_DEQUEUE outright. This is more similar to how OpenBSD and our
iwn(4) work.
Reviewed by: sam
into acpi_cpu_startup() which is where all the other code to update this
global variable lives. This fixes a bug where cpu_cx_count was not updated
correctly if acpi_cpu_generic_cx_probe() returned early.
PR: kern/108581
Debugged by: Bruce Cran
Reviewed by: avg, njl, sepotvin
MFC after: 3 days
via the Linux tool.
- Add Linux shim to ipmi(4)
- Create a partitions file to linprocfs to make Linux fdisk see
disks. This file is dynamic so we can see disks come and go.
- Convert msdosfs to vfat in mtab since Linux uses that for
msdosfs.
- In the Linux mount path convert vfat passed in to msdosfs
so Linux mount works on FreeBSD. Note that tasting works
so that if da0 is a msdos file system
/compat/linux/bin/mount /dev/da0 /mnt
works.
- fix a 64it bug for l_off_t.
Grabing sh, mount, fdisk, df from Linux, creating a symlink of mtab to
/compat/linux/etc/mtab and then some careful unpacking of the Linux bmc
update tool and hacking makes it work on newer Dell boxes. Note, probably
if you can't figure out how to do this, then you probably shouldn't be
doing it :-)
in AMD FPUs:
- Do not clear the affected state in the case that the FPU registers for
the thread that already owns the FPU are changed via fpu_setregs(). The
only local information the thread would see is its own state in that
case.
- Fix a type mismatch for the dummy variable used in a "fld". It accepts
a float, not a double.
Reviewed by: bde
Approved by: so (cperciva)
MFC after: 1 month
When a vt switch occurs the irq handler is uninstalled. Interrupts
and the state tracking of what was enabled/disabled wasn't working
properly. This should resolve the reports of "slow windows" after a
vt switch, among other things. The radeon 2d driver seems to work a
bit more correctly than the Intel driver. With the Intel driver,
vblank interrupts will be enabled at system startup and will only
be disabled after an additional modeset (vt switch, dpms, randr event).
With this patch, I am able to run glxgears synced to vblank and
vt switch while it is running without ill effects.
MFC after: 3 days
- Trace non-error loads into the access cache once, not zero times or
twice.
- Sometimes attr cache loads fail due to a race, in which case they are
aborted leading to an invalidation; in this case, trace only the flush,
not a load.
MFC after: 1 month
Sponsored by: Google, Inc.
the requested PCI bus falls outside of the bus range given in the ACPI
MCFG table. Several BIOSes seem to not include all of the PCI busses in
systems in their MCFG tables. It maybe that the BIOS is simply buggy and
does support all the busses, but it is more conservative to just fall back
to the old method unless it is certain that memory accesses will work.
events are:
nfsclient:accesscache:flush:done
nfsclient:accesscache:get:hit
nfsclient:accesscache:get:miss
nfsclient:accesscache:load:done
They pass the vnode, uid, and requested or loaded access mode (if any);
the load event may also report a load error if the RPC fails.
The attribute cache events are:
nfsclient:attrcache:flush:done
nfsclient:attrcache:get:hit
nfsclient:attrcache:get:miss
nfsclient:attrcache:load:done
They pass the vnode, optionally the vattr if one is present (hit or load),
and in the case of a load event, also a possible RPC error.
MFC after: 1 month
Sponsored by: Google, Inc.
- Call acpi_resync_clock() to reset system time before hardclock is ready
to tick. Note we assume the current timecounter hardware and RTC are
already available for read operation.
Tested by: mav
It was derived from i386 version long ago but never resync'ed again.
Originally, i386 version compared the current time from realtime clock
with time_second (which was just `time' in the old days). When this MI
version was written, it was wrongly compared against `base' AND never
used because of a bug (typo?) in the code. This check was killed
in i386 version when home-rolled calendaric calculation was removed.
Now, we just remove the code here as well to make the code simpler.
prevent individual transactions from crossing a 4GB address boundary. Due
to bus_size_t type limitations, the driver uses a 2GB boundary in PAE
kernels.
Reviewed by: scottl
MFC after: 1 week
quirk requiring it to be enabled even when using MSI. This makes
the latter work again after r189285.
- Remove a comment which no longer applies since r190194.
filtering handle this. Introduce a new function msk_rxfilter that
handles Rx filter configuration and multicast setup as well as
promiscuous mode. This simplifies code a lot.
Promiscuous mode always have preference to any other Rx
filtering so don't disable the mode when ALLMULTI is set.
to the devctl notification queue. Empty strings cause devctl read
call to return 0 and result in devd exiting prematurely.
The actual offender (ugen notes for root hubs) will be fixed
by separate commit.
Limit the size of malloced buffer when dumping environment
variables. [EN-09:01]
Approved by: so (cperciva)
Approved by: re (kensmith)
Security: FreeBSD-SA-09:06.ktimer
Errata: FreeBSD-EN-09:01.kenv
provider. The NFS client exposes 'start' and 'done' probes for NFSv2
and NFSv3 RPCs when using the new RPC implementation, passing in the
vnode, mbuf chain, credential, and NFSv2 or NFSv3 procedure number.
For 'done' probes, the error number is also available.
Probes are named in the following way:
...
nfsclient:nfs2:write:start
nfsclient:nfs2:write:done
...
nfsclient:nfs3:access:start
nfsclient:nfs3:access:done
...
Access to the unmarshalled arguments is not easily available at this
point in the stack, but the passed probe arguments are sufficient to
to a lot of interesting things in practice. Technically, these probes
may cover multiple RPC retransmits, and even transactions if the
transaction ID change as a result of authentication failure or a
jukebox error from the server, but usefully capture the intent of a
single NFS request, such as access, getattr, write, etc.
Typical use might involve profiling RPC latency by system call, number
of RPCs, how often a getattr leads to a call to access, when failed
access control checks occur, etc. More detailed RPC information might
best be provided by adding a krpc provider. It would also be useful
to add NFS client probes for events such as the access cache or
attribute cache satisfying requests without an RPC.
Sponsored by: Google, Inc.
MFC after: 1 month
Badly formed ELF note may cause the caclulated pointer to the next note
to point both after the note region, that was checked in the code, but
also to point before the region, that was not checked [1]. Remember the
first note location in note0 and leap out if the note is not between
note0 and note_end.
In the similar way, badly formed note may cause infinite loop by
pointing next note into the same or previous note. Guard against this by
limiting amount of loop iterations by arbitrary choosen big number.
For clarity, check the calculated note alignment in each iteration.
Reported by: Chris Palmer <chris noncombatant org> [1]
PR: kern/132886
Reviewed and tested by: dchagin
MFC after: 3 days
it is right for only a tiny fraction of these devices and this
wild-card entry is too broad.
# I run a kernel without this entry at all without ill effects...
stored in the pmap is from the direct map region. The two exceptions have
been the kernel pmap and the swapper's pmap. These pmaps have used a
kernel virtual address established by pmap_bootstrap() for their shared
pml4 page table page. However, there is no reason not to use the direct
map for these pmaps as well.
they were passed uninitialized to in6_pcblookup_hash. Instead, do as is done
for IPv4 and use the addresses within the sockaddr structure, which are
correctly populated.
This fixes tcpdrop(8) for IPv6 address pairs.
Reviewed by: bz
