Commit Graph

104992 Commits

Author SHA1 Message Date
jmg
56a1b95dea make this compile on arm... bus_size_t is not size_t, and it has
different sizes on different arches...
2014-10-29 02:23:50 +00:00
jhb
d47eb7d2d4 Rework virtual machine hypervisor detection.
- Move the existing code to x86/x86/identcpu.c since it is x86-specific.
- If the CPUID2_HV flag is set, assume a hypervisor is present and query
  the 0x40000000 leaf to determine the hypervisor vendor ID.  Export the
  vendor ID and the highest supported hypervisor CPUID leaf via
  hv_vendor[] and hv_high variables, respectively.  The hv_vendor[]
  array is also exported via the hw.hv_vendor sysctl.
- Merge the VMWare detection code from tsc.c into the new probe in
  identcpu.c.  Add a VM_GUEST_VMWARE to identify vmware and use that in
  the TSC code to identify VMWare.

Differential Revision:	https://reviews.freebsd.org/D1010
Reviewed by:	delphij, jkim, neel
2014-10-28 19:17:44 +00:00
loos
7dd1b73c38 Make the GPIO children attach to the first unit available and not only to
unit 0.

It seems that this 'simplification' was copied to all GPIO drivers in tree.

This fix a bug where a GPIO controller could fail to attach its children
(gpioc and gpiobus) if another GPIO driver attach first.
2014-10-28 18:33:59 +00:00
np
ae007aae20 Always request a completion for every work request for iWARP. The
initial MPA exchange must be tracked this way so that t4_tom's state for
the tid is all clean at the time the tid transitions to RDMA mode.  Once
it does, t4_tom is out of the way and iw_cxgbe uses the qp endpoints
directly.

Sponsored by:	Chelsio Communications
2014-10-28 18:10:57 +00:00
kib
95304fc8a8 Convert kern_umtx.c to use fueword() and casueword().
Also fix some mishandling of suword(9) errors as errno, which resulted
in spurious ERESTART.

Sponsored by:	The FreeBSD Foundation
Tested by:	pho
MFC after:	3 weeks
2014-10-28 15:30:33 +00:00
kib
ad7bf17db7 Replace some calls to fuword() by fueword() with proper error checking.
Sponsored by:	The FreeBSD Foundation
Tested by:	pho
MFC after:	3 weeks
2014-10-28 15:28:20 +00:00
kib
29a659ef8e Add fueword(9) and casueword(9) functions. They are like fuword(9)
and casuword(9), but do not mix value read and indication of fault.

I know (or remember) enough assembly to handle x86 and powerpc.  For
arm, mips and sparc64, implement fueword() and casueword() as wrappers
around fuword() and casuword(), which means that the functions cannot
distinguish between -1 and fault.

On architectures where fueword() and casueword() are native, implement
fuword() and casuword() using fueword() and casuword(), to reduce
assembly code duplication.

Sponsored by:	The FreeBSD Foundation
Tested by:	pho
MFC after:	2 weeks (ia64 needs treating)
2014-10-28 15:22:13 +00:00
hselasky
a0b8ff0c54 The SYSCTL data pointers can come from userspace and must not be
directly accessed. Although this will work on some platforms, it can
throw an exception if the pointer is invalid and then panic the kernel.

Add a missing SYSCTL_IN() of "SCTP_BASE_STATS" structure.

MFC after:	3 days
Sponsored by:	Mellanox Technologies
2014-10-28 12:00:39 +00:00
araujo
8a51fd3c94 Reported by: Coverity
CID:		1249760
Reviewed by:	neel
Approved by:	neel
Sponsored by:	QNAP Systems Inc.
2014-10-28 07:19:02 +00:00
mjg
bf3b8650d6 Simplify sys_getloginclass.
Just use current thread credentials as they have the same accuracy as the
ones obtained from proc..
2014-10-28 04:59:33 +00:00
mjg
37841a11a2 Change loginclass mutex to an rwlock.
While here reduce nesting in loginclass_free.

Submitted by:	Tiwei Bie <btw mail.ustc.edu.cn>
X-Additional:	JuniorJobs project
MFC after:	2 weeks
2014-10-28 04:33:57 +00:00
julian
91121d26d0 Allow loading of dtraceall without nfscl if what you really wnat is nfsclient
Obtained from:	Panzura tree
MFC after:	1 week
2014-10-28 04:18:09 +00:00
araujo
57afd12669 Drop __DECONST as well as few fixes of style(9).
Phabric:	D1012
Suggested by:	mjg, jhb
Reviewed by:	mjg, jhb
Sponsored by:	QNAP Systems Inc.
2014-10-28 03:42:09 +00:00
jhibbits
905da59627 Add CAPABILITIES and CAPABILITY_MODE to powerpc GENERIC64, missed with the addition to
GENERIC

MFC after:	3 weeks
2014-10-28 01:34:01 +00:00
np
8d27cd9437 iwcm_event status needs to be populated for close_complete_upcall
Submitted by:	Hariprasad at Chelsio dot com
Sponsored by:	Chelsio Communications
2014-10-27 23:11:48 +00:00
np
1a7f83f8a9 krping: In verbose mode print only first 128 bytes of krping data.
Submitted by:	Hariprasad at Chelsio dot com.
Sponsored by:	Chelsio Communications
2014-10-27 22:41:55 +00:00
np
4d2f388452 Some cxgbe/iw_cxgbe fixes:
- Free rt in c4iw_connect only if it is allocated.
- Call soclose instead of so_shutdown if there is an abort from the peer.
- Close socket and return failure if TOE is not enabled.

Submitted by:	Hariprasad at Chelsio dot com
Sponsored by:	Chelsio Communications
2014-10-27 22:22:46 +00:00
grehan
4789422fd1 Remove bhyve SVM feature printf's now that they are available in the
general CPU feature detection code.

Reviewed by:	neel
2014-10-27 22:20:51 +00:00
grehan
1d26d798b2 Output a summary of optional SVM features in dmesg similar to CPU features.
If bootverbose is enabled, a detailed list is provided; otherwise, a
single-line summary is displayed.

Differential Revision:	https://reviews.freebsd.org/D1008
Reviewed by:	jhb, neel
MFC after:	1 week
2014-10-27 22:02:35 +00:00
mjg
8c32132302 Tidy up functions related to uidinfo management.
- reference found uidinfo in uilookup
- reduce nesting by handling shorter cases first
2014-10-27 20:20:05 +00:00
mjg
26906a3e9c De-k&r-ify function definitions in kern/kern_resource.c
No functional changes.
2014-10-27 20:18:30 +00:00
jhb
7567389b20 Add foo_genassym.c files to DPSRCS so dependencies for them are generated.
This ensures these objects are rebuilt to generate an updated header of
assembly constants if needed.
2014-10-27 18:37:11 +00:00
ae
b27ddf1ff3 Do not automatically install routes to link-local and interface-local multicast
addresses.

Obtained from:	Yandex LLC
Sponsored by:	Yandex LLC
2014-10-27 16:15:15 +00:00
glebius
554522807b Tiny comment fixup. 2014-10-27 16:13:51 +00:00
hselasky
144232fef2 Preserve limitation of "TCP_CA_NAME_MAX" when matching the algorithm
name.

MFC after:	3 days
Suggested by:	gnn @
2014-10-27 16:08:41 +00:00
hselasky
d92cafa3fc Make assignments to "net.inet.tcp.cc.algorithm" work by fixing a bad
string comparison.

MFC after:	3 days
Reported by:	Jukka Ukkonen <jau789@gmail.com>
Sponsored by:	Mellanox Technologies
2014-10-27 11:21:47 +00:00
ae
8d3b28e72b Remove unused function.
Sponsored by:	Yandex LLC
2014-10-27 10:34:09 +00:00
mav
981411c14e Remove comment obsoleted by r273730.
MFC after:	1 week
2014-10-27 09:30:57 +00:00
mav
1a960f7ebe Reduce code duplication around Write Exclusive persistent reservation.
While there, allow some more commands to pass persistent reservation.

MFC after:	1 week
2014-10-27 09:26:24 +00:00
kib
50ca982286 Add a method to iicbus to request IIC_M_NOSTOP behaviour for multibyte
transfers to be default.  It simplifies porting code which assumes
such settings.

Discussed with:	avg, llos, nwhitehorn
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2014-10-27 07:51:26 +00:00
kib
99d20fccef Allow the vfs.nfsd knobs to be set from loader.conf (or using
kenv(8)).  This is useful when nfsd is loaded as module.

Reviewed by:	rmacklem
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2014-10-27 07:47:13 +00:00
alc
2a5ed8ddfb Simplify memrw().
MFC after:	10 days
2014-10-27 01:10:40 +00:00
mav
6a4642451e Allocate buffer for READ BUFFER/WRITE BUFFER commands on demand.
These commands are rare, but consume additional 256KB RAM per LUN.

MFC after:	1 week
2014-10-26 23:25:42 +00:00
mav
be81b72040 Fix support for LUN flat space addressing.
MFC after:	1 week
2014-10-26 20:13:46 +00:00
mjg
a9faac8f4b Avoid dynamic syscall overhead for statically compiled modules.
The kernel tracks syscall users so that modules can safely unregister them.

But if the module is not unloadable or was compiled into the kernel, there is
no need to do this.

Achieve this by adding SY_THR_STATIC_KLD macro which expands to SY_THR_STATIC
during kernel build and 0 otherwise.

Reviewed by:	kib (previous version)
MFC after:	2 weeks
2014-10-26 19:42:44 +00:00
neel
4ee18dab17 Change the type of the first argument to the I/O emulation handlers to
'struct vm *'. Previously it used to be a 'void *' but there is no reason
to hide the actual type from the handler.

Discussed with:	tychon
MFC after:	1 week
2014-10-26 19:03:06 +00:00
smh
49292da844 Fix CF ERASE breakage caused by 268205.
This prevents BIO_DELETE requests getting stuck in the TRIM queue which
results in a panic on shutdown due to outstanding requests.

PR:		194606
Reported by:	Guido Falsi
Reviewed by:	mav
MFC after:	3 days
Sponsored by:	Multiplay
2014-10-26 18:41:01 +00:00
ian
3aefca1073 Remove the ARM_DEVICE_MULTIPASS option and make its effect be the default.
Multipass device attachment was tested on many arm platforms by users and
only success was reported on the arm@ mailing list.  This is just the
long-delayed followup of making it the default.

Multipass attachment is necessary when using vendor-supplied FDT data,
because our devices may need to be attached in a different order than they
are described in the FDT data.
2014-10-26 18:30:35 +00:00
alc
dc84db712f By the time that pmap_init() runs, vm_phys_segs[] has been initialized. Obtaining
the end of memory address from vm_phys_segs[] is a little easier than obtaining it
from phys_avail[].

Discussed with:	Svatopluk Kraus
2014-10-26 17:56:47 +00:00
mav
0963d8042b Fix printing non-terminated strings in devlist XML.
MFC after:	1 week
2014-10-26 15:28:07 +00:00
mjg
b6584b3e11 Fix up an assertion in kern_setgroups, it should compare with ngroups_max + 1
Bug introdued in r273685.

Noted by: Tiwei Bie <btw mail.ustc.edu.cn>
2014-10-26 14:25:42 +00:00
mav
7e130945ae Add "rpm" and "formfactor" LUN options to match istgt functionality.
MFC after:	1 week
2014-10-26 07:40:37 +00:00
mjg
f0db1caf67 Tidy up sys_setgroups and kern_setgroups.
- 'groups' initialization to NULL is always ovewrwriten before use, so plug it
- get rid of 'goto out'
- kern_setgroups's callers already validate ngrp, so only assert the condition
- ngrp  is an u_int, so 'ngrp < 1' is more readable as 'ngrp == 0'

No functional changes.
2014-10-26 06:04:09 +00:00
mjg
db02fb1250 Use a temporary buffer in sys_setgroups for requests with <= XU_NGROUPS groups.
Submitted by:	Tiwei Bie <btw mail.ustc.edu.cn>
X-Additional: JuniorJobs project
MFC after:	2 weeks
2014-10-26 05:39:42 +00:00
neel
eb58530f9b Move the ACPI PM timer emulation into vmm.ko.
This reduces variability during timer calibration by keeping the emulation
"close" to the guest. Additionally having all timer emulations in the kernel
will ease the transition to a per-VM clock source (as opposed to using the
host's uptime keep track of time).

Discussed with:	grehan
2014-10-26 04:44:28 +00:00
neel
a76d8ee4e9 Don't pass the 'error' return from an I/O port handler directly to vm_run().
Most I/O port handlers return -1 to signal an error. If this value is returned
without modification to vm_run() then it leads to incorrect behavior because
'-1' is interpreted as ERESTART at the system call level.

Fix this by always returning EIO to signal an error from an I/O port handler.

MFC after:	1 week
2014-10-26 03:03:41 +00:00
mjg
5b3100bae0 Now that sysctl_root is only called with sysctl lock in shared mode, update
its assertion to require that.

Update comment missed in r273400: sysctl_xlock/unlock -> sysctl_xlock/xunlock

Noted by: jhb
2014-10-26 01:47:55 +00:00
kib
f40f3eb0c5 Set the caching mode for the usermode mapping of the HPET registers
page to uncached.

Reviewed by:	rpaulo
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2014-10-25 21:01:50 +00:00
jhb
f014f5242a Use correct type in __DEVOLATILE(). 2014-10-25 20:42:47 +00:00
jpaetzel
0584337fe8 This change addresses 4 bugs in ZFS exposed by Richard Kojedzinszky's
crash.sh script attached to FreeNAS bug 4109:
https://bugs.freenas.org/issues/4109

Three are in the snapshot layer:
a) AVG explains in his notes: https://wiki.freebsd.org/AvgVfsSolarisVsFreeBSD

"VOP_INACTIVE must not do any destructive actions to a vnode
and its filesystem node, nor invalidate them in any way."
gfs_vop_inactive and zfsctl_snapshot_inactive did just that. In
OpenSolaris VOP_INACTIVE is much closer to FreeBSD's VOP_RECLAIM.
Rename & move them to gfs_vop_reclaim and zfsctl_snapshot_reclaim
and merge in the requisite vnode_destroy from zfsctl_common_reclaim.

b) gfs_lookup_dot and various zfsctl functions do not honor the
FreeBSD VFS convention of only locking from the root downward. When
looking up ".." the convention is to drop the current leaf vnode lock before
acquiring the directory vnode and then subsequently re-acquiring the lock on the
leaf vnode. This fixes that in all the places that our exercised by crash.sh.

c) The snapshot may already be unmounted when the directory vnode is reclaimed.
Check for this case and return.

One in the common layer:
d) Callers of traverse expect the reference to the vnode passed in to be
maintained. Don't release it.

This last one may be an unclear contract. There may in fact be some callers that
do expect the reference to be dropped on success in addition to callers that
expect it to be released. In this case a further audit of the callers is needed
and a consensus on the correct behavior.

PR:	184677
Submitted by:	kmacy
Reviewed by:	delphij, will, avg
MFC after:	2 weeks
Sponsored by:	iXsystems
2014-10-25 17:42:44 +00:00
mav
d5290e16a1 Add support for 12/16-byte EUI and 16-byte NAA IDs.
MFC after:	1 week
2014-10-25 17:07:35 +00:00
mav
f21b293af4 Revert somewhat hackish geom_disk optimization, committed as part of r256880,
and the following r273143 commit, supposed to workaround introduced issue by
quite innocent-looking change.

While there is no clear understanding why, but r273143 is accused in data
corruption in some environments with high I/O load.  I personally don't see
any problem in that commit, and possibly it is just a trigger to some other
bug somewhere, but better safe then sorry for now.

Requested by:	scottl@
MFC after:	3 days
2014-10-25 15:16:19 +00:00
tuexen
06aa9cfa86 Fix a use of an uninitialized variable by makeing sure
that sctp_med_chunk_output() always initialized the reason_code
instead of relying on the caller.
The variable is only used for debugging purpose.
This issue was reported by Peter Bostroem from Google.

MFC after: 3 days
2014-10-25 09:25:29 +00:00
mjg
909f8c4c4a rlimit: plug duplicate assertion
counter sanity is already checked by refcount_release.
2014-10-25 05:56:21 +00:00
delphij
8cf66ad851 Fix build. 2014-10-25 00:16:36 +00:00
np
474148ed8f cxgbe(4): bump up PF4's share of some global resources.
This increases the size of the per-port RSS slice and also allows the
driver to use a larger number of tx and rx queues.

MFC after:	2 weeks
2014-10-25 00:14:44 +00:00
loos
8b84661d1f Add an iicbus_reset() method to bcm2835_bsc. While it is generally not
used for kernel devices it is used by i2c(8).

This fix the 'error: Device not configured' when i2c(8) tries to reset the
controller, as an example:

# i2c -r
Resetting I2C controller on /dev/iic0: error: Device not configured

For now use conservative settings for default i2c speeds.

MFC after:	1 week
2014-10-24 22:06:21 +00:00
rpaulo
d3c80736fe Add a sysctl to control the HPET allow_write behaviour.
Requested by:	kib
2014-10-24 21:08:36 +00:00
loos
c2bbf09479 Fix cpsw_detach() to not panic when called from cpsw_attach().
For an unkown reason (at moment), sometimes if_cpsw cannot read from PHY
and fails to attach calling cpsw_detach() which end up in a panic.

Fix it by doing the proper check before detach the miibus and also fix the
leak of few variables.

And to actually make it work, ether_ifattach() has to be moved to the end
of cpsw_attach() to avoid a race where calling ether_ifdetach() before
domain_init() (which will only run later on) would make it crash at
INP_INFO_RLOCK() on in_pcbpurgeif0().

Tested on:	BBB (am335x)
MFC after:	1 week
2014-10-24 21:08:02 +00:00
jhb
5dd26e948d The current POSIX semaphore implementation stores the _has_waiters flag
in a separate word from the _count.  This does not permit both items to
be updated atomically in a portable manner.  As a result, sem_post()
must always perform a system call to safely clear _has_waiters.

This change removes the _has_waiters field and instead uses the high bit
of _count as the _has_waiters flag.  A new umtx object type (_usem2) and
two new umtx operations are added (SEM_WAIT2 and SEM_WAKE2) to implement
these semantics.  The older operations are still supported under the
COMPAT_FREEBSD9/10 options.  The POSIX semaphore API in libc has
been updated to use the new implementation.  Note that the new
implementation is not compatible with the previous implementation.
However, this only affects static binaries (which cannot be helped by
symbol versioning).  Binaries using a dynamic libc will continue to work
fine.  SEM_MAGIC has been bumped so that mismatched binaries will error
rather than corrupting a shared semaphore.  In addition, a padding field
has been added to sem_t so that it remains the same size.

Differential Revision:	https://reviews.freebsd.org/D961
Reported by:	adrian
Reviewed by:	kib, jilles (earlier version)
Sponsored by:	Norse
2014-10-24 20:02:44 +00:00
jhb
fcc57fff95 Add COMPAT_FREEBSD9 and COMPAT_FREEBSD10 options to wrap code that
provides compatability for FreeBSD 9.x and 10.x binaries.  Enable
these options in kernel configs that enable other COMPAT_FREEBSD<n>
options.
2014-10-24 19:58:24 +00:00
rpaulo
7ecde33ff4 HPET: avoid handling the multiple file-descriptor case.
It had two bugs: one where mmap was still allowed and another where
D_TRACKCLOSE doesn't handle all cases.

Thanks to jhb and kib for pointing them out.
MFC after:	1 week
2014-10-24 19:58:00 +00:00
loos
6ab33f375c Fix a bug where DMA maps created with bus_dmamap_create() won't increment
the map count and without being able to keep track of the current map
allocation, bus_dma_tag_destroy() will fail to proceed and will return
EBUSY even after all the maps have been correctly destroyed with
bus_dmamap_destroy().

Found while testing the detach method of a NIC.

Tested on:	BBB (am335x)
Reviewed by:	cognet, ian
MFC after:	1 week
2014-10-24 19:18:39 +00:00
rpaulo
65e80d25ca HPET: create /dev/hpetN as a way to access HPET from userland.
In some cases, TSC is broken and special applications might benefit
from memory mapping HPET and reading the registers to count time.
Most often the main HPET counter is 32-bit only[1], so this only gives
the application a 300 second window based on the default HPET
interval.
Other applications, such as Intel's DPDK, expect /dev/hpet to be
present and use it to count time as well.

Although we have an almost userland version of gettimeofday() which
uses rdtsc in userland, it's not always possible to use it, depending
on how broken the multi-socket hardware is.

Install the acpi_hpet.h so that applications can use the HPET register
definitions.

[1] I haven't found a system where HPET's main counter uses more than
32 bit.  There seems to be a discrepancy in the Intel documentation
(claiming it's a 64-bit counter) and the actual implementation (a
32-bit counter in a 64-bit memory area).

MFC after:	1 week
Relnotes:	yes
2014-10-24 18:39:15 +00:00
hselasky
9d712aa6b0 Update the network interface baudrate integer according to the actual
line rate.

Submitted by:	jhb @
MFC after:	1 week
2014-10-24 16:39:01 +00:00
ian
d2d2282d51 Accept the documented FDT compatible string for the PL310 cache controller
as well as the non-standard string we've been using for a couple years.
2014-10-24 15:44:29 +00:00
kevlo
be49686e26 Add D-Link DWA-123 rev D1 and Elecom WDC-150SU2M. 2014-10-24 15:36:30 +00:00
melifaro
e80c20a708 Bump default dynamic limit to 16k entries.
Print better log message when limit is hit.

PR:		193300
Submitted by:	me at nileshgr.com
2014-10-24 13:57:15 +00:00
ae
4a180510c8 Remove redundant check and m_pullup() call. 2014-10-24 13:34:22 +00:00
royger
0e3d9b8126 amd64: make uiomove_fromphys functional for pages not mapped by the DMAP
Place the code introduced in r268660 into a separate function that can be
called from uiomove_fromphys. Instead of pre-allocating two KVA pages use
vmem_alloc to allocate them on demand when needed. This prevents blocking if
a page fault is taken while physical addresses from outside the DMAP are
used, since the lock is now removed.

Also introduce a safety catch in PHYS_TO_DMAP and DMAP_TO_PHYS.

Sponsored by: Citrix Systems R&D
Reviewed by:		kib
Differential Revision:	https://reviews.freebsd.org/D947

amd64/amd64/pmap.c:
 - Factor out the code to deal with non DMAP addresses from pmap_copy_pages
   and place it in pmap_map_io_transient.
 - Change the code to use vmem_alloc instead of a set of pre-allocated
   pages.
 - Use pmap_qenter and don't pin the thread if there can be page faults.

amd64/amd64/uio_machdep.c:
 - Use pmap_map_io_transient in order to correctly deal with physical
   addresses not covered by the DMAP.

amd64/include/pmap.h:
 - Add the prototypes for the new functions.

amd64/include/vmparam.h:
 - Add safety catches to make sure PHYS_TO_DMAP and DMAP_TO_PHYS are only
   used with addresses covered by the DMAP.
2014-10-24 09:48:58 +00:00
delphij
df9d3cfbe5 Return BUS_PROBE_DEFAULT instead of BUS_PROBE_VENDOR or 0 for in-tree
driver.  This change was verified by Microsoft.
2014-10-24 06:27:45 +00:00
araujo
6ec58ceca2 Fix a leaked Storage Variable.
Phabric:	D981
Submitted by:	myself
Reported by:	Coverity
CID:		1248848
Reworked by:	kevlo
Reviewed by:	marcel, davide, ray, kevlo
Approved by:	marcel, kevlo
2014-10-24 05:39:32 +00:00
jhibbits
a2a568a9e6 Whitespace
X-MFC-with:	r273570
MFC after:	1 week
2014-10-24 03:34:21 +00:00
jhibbits
251119f0e6 Three updates to PowerPC FBT:
* Use a constant to define the number of stack frames in a probe exception.
* Only allow function symbols in powerpc64 ('.' prefixed)
* Set the fbtp_roffset for return probes, so the correct dtrace_probe call is
  made.

MFC after:	1 week
2014-10-24 03:33:01 +00:00
loos
72aeed53f4 Move the duplicated code to a single function.
No functional changes.
2014-10-23 23:20:04 +00:00
loos
0bb25fe6bf Provide a working GPIOBUS_IVAR() macro for FDT systems. 2014-10-23 23:12:30 +00:00
des
3312d35f6b In all cases except CTLTYPE_STRING, penv is NULL here, so passing it
indiscriminately to printf() and freeenv() is incorrect.  Add a NULL
check before freeenv(); as for printf(), we could use req.newptr
instead, but we'd have to select the correct format string based on
the type, and that's too much work for an error message, so just
remove it.
2014-10-23 22:42:56 +00:00
ian
bc4f095bf4 Install a temporary workaround to avoid problems in fdt data with linux's
workaround for an imx6 chip erratum.  Linux works around the bug with
changes in fdt data that we can't currently handle, so to enable running
with standard vendor-supplied fdt data, this watches for an attempt to map
the gpio1_6 interrupt and remaps it back to the standard ethernet interrupt.

This can be undone when the intrng project is completed and our gpio drivers
can also be interrupt controllers.
2014-10-23 22:21:22 +00:00
alc
a16733e12d Under PAE ULONG is insufficient for representing the physical memory size. Use QUAD
for "hw.physmem" so that a physical memory size greater than 4 GB can be specified
from the boot loader.
2014-10-23 21:02:40 +00:00
jhb
93ccee215c Use a static callout to drive key_timehandler() instead of timeout().
While here, make key_timehandler() private to key.c.

Submitted by:	bz (2)
Tested by:	bz
2014-10-23 20:43:16 +00:00
mjg
d40cc92af6 In selfdfree re-evaulate sf_si after takin the lock.
Otherwise we can race with doselwakeup.

This is a fixup to r273549

Reviewed by:	jhb
Reported by:	everyone and their dog
2014-10-23 19:06:08 +00:00
delphij
466c8cbf48 Test if 'env' is NULL before doing memset() and strlen(),
the caller may pass NULL to freeenv().
2014-10-23 18:23:50 +00:00
rpaulo
7167b162bc puc(4): add an entry for the Oxford Semiconductor OXPCIe952 1S1P card.
Submitted by:	Alex Burlyga <alex.burlyga.ietf at gmail.com>
MFC after:	1 week
2014-10-23 18:03:27 +00:00
mjg
b26a2106d9 Avoid taking the lock in selfdfree when not needed. 2014-10-23 15:35:47 +00:00
ae
2921b89f9b Move if_get_counter initialization from if_attach into if_alloc.
Also, initialize all counters before ifnet will become available in the system.
This fixes possible access to uninitialized ifned fields.

PR:		194550
2014-10-23 14:29:52 +00:00
loos
85f9a84b94 Fix a bug where some DTS layouts could cause the premature ending of the
search (i.e. without returning any result) and you would end up with a
random MAC address.

Change the search algorithm to a recursive one to ensure that all the nodes
on DTS will be verified.

The previous algorithm could not keep up if the DTS has too many sub-nodes.

While here, fix the punctuation on comments.
2014-10-23 13:47:19 +00:00
dumbbell
525706da87 vt(4): Add PIO_VFONT_DEFAULT ioctl to restore the default builtin font
To restore the default font using vidcontrol(1), use the "-f" flag
without an argument:
    vidcontrol -f < /dev/ttyv0

PR:		193910
Differential Revision:	https://reviews.freebsd.org/D971
Submitted by:	Marcin Cieslak <saper@saper.info>
Reviewed by:	ray@, emaste@
Approved by:	ray@
MFC after:	1 week
2014-10-23 12:38:05 +00:00
bryanv
8f4c0531c0 Add VirtIO console driver
Support for the multiport feature is mostly implemented, but currently
disabled due to some potential races in the hot plug code paths.

Requested by:	marcel
MFC after:	1 month
Relnotes:	yes
2014-10-23 04:47:32 +00:00
ian
256fe85d82 Unconditionally enable the clocks for all imx6 devices that we have drivers
for, or that are required to run the chip (such as busses).  Turn off all
the devices we don't yet have drivers for.

Some day we will have a fully functional imx6 clock driver so that we can
manage clocks based on fdt data.  This will have to do until then.
2014-10-23 03:13:14 +00:00
cperciva
bdb0ac02b9 Populate the GELI passphrase cache with the kern.geom.eli.passphrase
variable (if any) provided in the boot environment.  Unset it from
the kernel environment after doing this, so that the passphrase is
no longer present in kernel memory once we enter userland.

This will make it possible to provide a GELI passphrase via the boot
loader; FreeBSD's loader does not yet do this, but GRUB (and PCBSD)
will have support for this soon.

Tested by:	kmoore
2014-10-22 23:41:15 +00:00
cperciva
93829a91a2 Avoid leaking data from the kernel environment: When we convert the
initial static environment to a dynamic one, zero the static environment
buffer, and zero individual values when kern_unsetenv and freeenv are
called.

Tested by:	kmoore (VM memory dump + grep)
Tested by:	cperciva (kernel panic dump + grep)
2014-10-22 23:35:32 +00:00
rmacklem
8695c1d285 Clip the settings for the NFS rsize, wsize mount options
to a power of 2. For non-power of 2 settings, intermittent
page faults have been reported. Although the bug that causes
these page faults/crashes has not been identified, it does
not appear to occur when rsize, wsize is a power of 2.

Reported by:	tcberner@gmail.com
MFC after:	2 weeks
2014-10-22 22:27:51 +00:00
rmacklem
d26983570d Revert r273481 so it can be recoded using fls(), which
some feel will make it more readable.
2014-10-22 21:57:35 +00:00
melifaro
ac030d8a9b Rename log2 to tal_log2.
Submitted by:	luigi
2014-10-22 21:20:37 +00:00
rmacklem
5777570c4b Clip the settings for the NFS rsize, wsize mount options
to a power of 2. For non-power of 2 settings, intermittent
page faults have been reported. Although the bug that causes
these page faults/crashes has not been identified, it does
not appear to occur when rsize, wsize is a power of 2.

Reported by:	tcberner@gmail.com
MFC after:	2 weeks
2014-10-22 20:47:11 +00:00
np
b11e3d483d cxgbe/iw_cxgbe: wake up waiters after flushing the qp.
Obtained from:	Chelsio
2014-10-22 18:55:44 +00:00
luigi
0db2375e22 since we cast a pointer, use the correct signedness
(this was already in, and got lost in a recent update).
2014-10-22 18:55:36 +00:00
royger
72ff21680d netback: change xnb naming convention
Current FreeBSD netback names the interface with xnb<device unit>, but
this is not suitable for usage with the Xen toolstack, which expects
something similar to <prefix><domid><handle>. In order to solve this,
change the netback naming convention to use xnb<domid>.<handle>.

Sponsored by: Citrix Systems R&D

dev/xen/netback/netback.c:
 - Change netback to use the nomenclature stated above.
2014-10-22 17:09:12 +00:00
royger
919b7d8b7c xen: implement the privcmd user-space device
This device is only attached to priviledged domains, and allows the
toolstack to interact with Xen. The two functions of the privcmd
interface is to allow the execution of hypercalls from user-space, and
the mapping of foreign domain memory.

Sponsored by: Citrix Systems R&D

i386/include/xen/hypercall.h:
amd64/include/xen/hypercall.h:
 - Introduce a function to make generic hypercalls into Xen.

xen/interface/xen.h:
xen/interface/memory.h:
 - Import the new hypercall XENMEM_add_to_physmap_range used by
   auto-translated guests to map memory from foreign domains.

dev/xen/privcmd/privcmd.c:
 - This device has the following functions:
   - Allow user-space applications to make hypercalls into Xen.
   - Allow user-space applications to map memory from foreign domains,
     this is accomplished using the newly introduced hypercall
     (XENMEM_add_to_physmap_range).

xen/privcmd.h:
 - Public ioctl interface for the privcmd device.

x86/xen/hvm.c:
 - Remove declaration of hypercall_page, now it's declared in
   hypercall.h.

conf/files:
 - Add the privcmd device to the build process.
2014-10-22 17:07:20 +00:00
royger
28b52d792f xen: add a Xen to BSD error translation
Since Xen and FreeBSD error codes are completely different add a
translation layer in order to convert Xen error codes into native
FreeBSD error codes. This will be used by the privcmd device, which
needs to return the hypercall errors into user-space.

Sponsored by: Citrix Systems R&D

xen/error.h:
 - Import Xen error codes.
 - Create a table to map Xen error codes into FreeBSD native error
   codes.
 - Create an inline function that performs the translation.
2014-10-22 16:58:52 +00:00
royger
4d53ee84fa xen: import a proper event channel user-space device
The user-space event channel device is used by applications to receive
and send event channel interrupts. This device is based on the Linux
evtchn device.

Sponsored by: Citrix Systems R&D

xen/evtchn/evtchn_dev.c:
 - Remove the old event channel device, which was already disabled in
   the build system.

dev/xen/evtchn/evtchn_dev.c:
 - Import a new event channel device based on the one present in
   Linux.
 - This device allows the following operations:
   - Bind VIRQ event channels (ioctl).
   - Bind regular event channels (ioctl).
   - Create and bind new event channels (ioctl).
   - Unbind event channels (ioctl).
   - Send notifications to event channels (ioctl).
   - Reset the device shared memory ring (ioctl).
   - Unmask event channels (write).
   - Receive event channel upcalls (read).
 - The new code is MP safe, and can be used concurrently.

conf/files:
 - Add the new device to the build system.
2014-10-22 16:57:11 +00:00
royger
bca2091349 xen: allow to register event channels without handlers
This is needed by the event channel user-space device, that requires
registering event channels without unmasking them. intr_add_handler
will unconditionally unmask the event channel, so we avoid calling it
if no filter/handler is provided, and then the user will be in charge
of calling it when ready.

In order to do this, we need to change the opaque type
xen_intr_handle_t to contain the event channel port instead of the
opaque cookie returned by intr_add_handler, since now registration of
event channels without handlers are allowed. The cookie will now be
stored inside of the private xenisrc struct. Also, introduce a new
function called xen_intr_add_handler that allows adding a
filter/handler after the event channel has been registered.

Sponsored by: Citrix Systems R&D

x86/xen/xen_intr.c:
 - Leave the event channel without a handler if no filter/handler is
   provided to xen_intr_bind_isrc.
 - Don't perform an evtchn_mask_port, intr_add_handler will already do
   it.
 - Change the opaque type xen_intr_handle_t to contain a pointer to
   the event channel port number, and make the necessary changes to
   related functions.
 - Introduce a new function called xen_intr_add_handler that can be
   used to add filter/handlers to an event channel after registration.

xen/xen_intr.h:
 - Add prototype of xen_intr_add_handler.
2014-10-22 16:51:52 +00:00
royger
040f3ac494 xen: fix usage of kern_getenv in PVH code
The value returned by kern_getenv should be freed using freeenv.

Reported by:	Coverity
CID:		1248852
Sponsored by: Citrix Systems R&D
2014-10-22 16:49:00 +00:00
br
81ed644a59 Provide a character device allowing us to access BERI memory regions.
Sponsored by:	DARPA, AFRL
2014-10-22 11:30:03 +00:00
mjg
04223abe34 filedesc assert that table size is at least 3 in fdsetugidsafety
Requested by: kib
2014-10-22 08:56:57 +00:00
hselasky
54601af653 Actually change the USB_PORT_ROOT_RESET_DELAY definition as stated in
the r241987 commit message, instead of having users locally overriding
the value using tunables in /boot/loader.conf .

Found by:	Adam Parco
Discussed with:	Nick Hibma
2014-10-22 07:50:19 +00:00
hselasky
2d5dda33e3 Allow overspecification of SYSCTL type in external kernel modules.
PR:		194523
MFC after:	3 days
2014-10-22 07:16:46 +00:00
luigi
f871c30cce remove/fix old code for building ipfw and dummynet in userspace 2014-10-22 05:21:36 +00:00
mjg
71643d972a Plug unnecessary PRS_NEW check in kern_procctl.
pfind does not return processes in such state.
2014-10-22 04:16:09 +00:00
kevlo
0944c94606 Fix the kernel panic in hostap mode.
rvp->beacon_mbuf was NULL in run_update_beacon().

PR:	189405
Submitted by:	Gabor Simon <gabor.simon75 at gmail.com>
MFC after:	3 days
2014-10-22 03:32:27 +00:00
mjg
b43c178ac3 Reduce nesting in vn_access.
No functional changes.
2014-10-22 01:53:00 +00:00
marcel
48e5a4e056 Virtual machines can easily have more than 16 option ROMs and
when that happens, we happily access our resource array out of
bounds. Make sure we stay within the MAX_ROMS limit.
While here, bump MAX_ROMS from 16 to 32 to minimize the chance
of leaving option ROMs unaccounted for.

Obtained from:	Juniper Networks, Inc.
2014-10-22 01:37:32 +00:00
imp
b3319d7fe0 Add defines for various FIRST PARTY DMA SEND subcommands. 2014-10-22 01:35:30 +00:00
mjg
a5dd454a60 Avoid crdup when possible in kern_accessat.
While here tidy up a little.
2014-10-22 01:09:07 +00:00
mjg
2ebe66c290 filedesc: cleanup setugidsafety a little
Rename it to fdsetugidsafety for consistency with other functions.

There is no need to take filedesc lock if not closing any files.

The loop has to verify each file and we are guaranteed fdtable has space
for at least 20 fds. As such there is no need to check fd_lastfile.

While here tidy up is_unsafe.
2014-10-22 00:23:43 +00:00
mjg
4386bf043d Eliminate unnecessary memory allocation in sys_getgroups and its ibcs2 counterpart. 2014-10-21 23:08:46 +00:00
gjb
6c315b7c4e Bump __FreeBSD_version to track SA-14:20, SA-14:21, SA-14:22,
SA-14:23

Approved by:	re (implicit)
Sponsored by:	The FreeBSD Foundation
2014-10-21 21:37:53 +00:00
mjg
421d04dd11 Take the lock shared in linker_search_symbol_name.
This helps sysctl kern.proc.stack.
2014-10-21 21:29:20 +00:00
mjg
b8143f5206 tmpfs: allow shared file lookups
Tested by: pho
2014-10-21 21:27:13 +00:00
mjg
baf980585a Mark some more sysctl stuff shared-locked and MPSAFE. 2014-10-21 21:08:45 +00:00
hselasky
a0fe5ba274 Use the UAUTO SYSCTL type for exporting the bounce zone alignment,
because the variable size depends on the build type.

Reported by:	kib @
MFC after:	3 days
2014-10-21 21:04:44 +00:00
mjg
32838cf097 Make sysctl name2oid shared-locked as well.
This is a follow-up to r273401.
2014-10-21 19:45:08 +00:00
gjb
7f34195e3d Fix an issue where a FreeBSD virtual machine provisioned in
the Microsoft Azure service does not recognize the second
attached disk on the system.

Submitted by:	kyliel@Microsoft
Patched by:	weh@Microsoft
PR:		194376
MFC after:	3 days
X-MFC-10.1:	yes, ASAP
Sponsored by:	The FreeBSD Foundation
2014-10-21 19:36:20 +00:00
mjg
96cc1d223f Implement shared locking for sysctl. 2014-10-21 19:05:44 +00:00
mjg
0aa65e85f3 Rename sysctl_lock and _unlock to sysctl_xlock and _xunlock. 2014-10-21 19:02:26 +00:00
jimharris
5d932fc621 ixl: remove i40e_register_x710_int.h
This file is not used by the FreeBSD ixl driver.

Submitted by:	Eric Joyner <eric.joyner@intel.com>
MFC after:	3 days
2014-10-21 18:00:56 +00:00
br
6d77d39adc Add driver for Micrel KSZ9021 Gigabit Ethernet Transceiver (PHY).
Sponsored by:	DARPA, AFRL
2014-10-21 09:14:16 +00:00
hselasky
a452ec32d4 Fix minor typo in currently unused macro.
MFC after:	3 days
2014-10-21 07:49:34 +00:00
hselasky
49c137f7be Fix multiple incorrect SYSCTL arguments in the kernel:
- Wrong integer type was specified.

- Wrong or missing "access" specifier. The "access" specifier
sometimes included the SYSCTL type, which it should not, except for
procedural SYSCTL nodes.

- Logical OR where binary OR was expected.

- Properly assert the "access" argument passed to all SYSCTL macros,
using the CTASSERT macro. This applies to both static- and dynamically
created SYSCTLs.

- Properly assert the the data type for both static and dynamic
SYSCTLs. In the case of static SYSCTLs we only assert that the data
pointed to by the SYSCTL data pointer has the correct size, hence
there is no easy way to assert types in the C language outside a
C-function.

- Rewrote some code which doesn't pass a constant "access" specifier
when creating dynamic SYSCTL nodes, which is now a requirement.

- Updated "EXAMPLES" section in SYSCTL manual page.

MFC after:	3 days
Sponsored by:	Mellanox Technologies
2014-10-21 07:31:21 +00:00
kevlo
fef9d98869 Add the Intel BayTrail USB device which needs port routing for USB 3.0.
Tested on the BayTrail E3845 platform.
Reviewed by:	hselasky
2014-10-21 07:24:58 +00:00
neel
4797036028 Merge projects/bhyve_svm into HEAD.
After this change bhyve supports AMD processors with the SVM/AMD-V hardware
extensions.

More details available here:
https://lists.freebsd.org/pipermail/freebsd-virtualization/2014-October/002905.html

Submitted by:	Anish Gupta (akgupt3@gmail.com)
Tested by:	Benjamin Perrault (ben.perrault@gmail.com)
Tested by:	Willem Jan Withagen (wjw@digiware.nl)
2014-10-21 07:10:43 +00:00
bryanv
d0cefd6466 Use the size of the Ethernet address, not the entire header, when
copying into forwarding entry.

Reported by:	Coverity
CID:		1248849
2014-10-21 05:45:57 +00:00
neel
b02cd3e378 IFC @r273338 2014-10-21 01:57:36 +00:00
yongari
e90d135155 It seems multicast filtering of RTL8168F does not work. Workaround
the silicon bug by accepting any multicast packets.

PR:	193488
MFC After:	1 week
2014-10-21 01:31:24 +00:00
neel
fb464d4f98 Fix a race in pmap_emulate_accessed_dirty() that could trigger a EPT
misconfiguration VM-exit.

An EPT misconfiguration is triggered when the processor encounters a PTE
that is writable but not readable (WR=10). On processors that require A/D
bit emulation PG_M and PG_A map to EPT_PG_WRITE and EPT_PG_READ respectively.

If the PTE is updated as in the following code snippet:
	*pte |= PG_M;
	*pte |= PG_A;
then it is possible for another processor to observe the PTE after the PG_M
(aka EPT_PG_WRITE) bit is set but before PG_A (aka EPT_PG_READ) bit is set.

This will trigger an EPT misconfiguration VM-exit on the other processor.

Reported by:	rodrigc
Reviewed by:	grehan
MFC after:	3 days
2014-10-21 01:06:58 +00:00
ian
75254491e5 Attach the imx6 CCM driver during BUS_PASS_CPU. It controls the clocks
for most on-chip devices and needs to be available before other drivers
start attaching and asking to have their clocks enabled.
2014-10-20 23:34:47 +00:00
ian
6fd6dd0843 The imx6 hardware is fast enough to make good use of however much
timecounter resolution is available, so ask for a 1 GHz frequency.  It
won't actually get one that fast, but that'll get the fastest available
clock and use a divisor of 1 (probably 132 or 66mhz on current hardware).
2014-10-20 23:32:34 +00:00
mjg
a21afe6138 Plug unnecessary binvp NULL initialization and test.
Reported by: Coverity
CID: 1018889
2014-10-20 22:52:15 +00:00
mjg
f1a57b3826 filedesc: plug 2 write-only variables
Reported by: Coverity
CID: 1245745, 1245746
2014-10-20 21:57:24 +00:00
markj
7e306363d8 Fix a typo from r189544, which replaced unp_global_rwlock with unp_list_lock
and unp_link_rwlock.

MFC after:	3 days
2014-10-20 20:21:40 +00:00
neel
be8b3ca439 Merge from projects/bhyve_svm all the changes outside vmm.ko or bhyve utilities:
Add support for AMD's nested page tables in pmap.c:
- Provide the correct bit mask for various bit fields in a PTE (e.g. valid bit)
  for a pmap of type PT_RVI.
- Add a function 'pmap_type_guest(pmap)' that returns TRUE if the pmap is of
  type PT_EPT or PT_RVI.

Add CPU_SET_ATOMIC_ACQ(num, cpuset):
This is used when activating a vcpu in the nested pmap. Using the 'acquire'
variant guarantees that the load of the 'pm_eptgen' will happen only after
the vcpu is activated in 'pm_active'.

Add defines for various AMD-specific MSRs.

Submitted by:	Anish Gupta (akgupt3@gmail.com)
2014-10-20 18:09:33 +00:00
loos
3469ab2117 Fix the mtx_sleep() error checking, catch all errors and not only
EWOULDBLOCK.

Do not print any message at errors.  The errors are properly sent to upper
layers which should be able to deal with it, including printing the errors
when they need to.

The error message was quite annoying while scanning the i2c bus.

MFC after:	1 week
2014-10-20 18:04:20 +00:00
mjg
12e0034dd0 Provide vfs suspension support only for filesystems which need it, take
two.

nullfs and unionfs need to request suspension if underlying filesystem(s)
use it. Utilize mnt_kern_flag for this purpose.

This is a fixup for 273271.

No strong objections from: kib
Pointy hat to: mjg
MFC after:	2 weeks
2014-10-20 18:00:50 +00:00
mjg
d6c735be77 unionfs: hold mount interlock while manipulating mnt_flag
This is for consistency with other filesystems.
2014-10-20 17:53:49 +00:00
marcel
d2387926ba Fully support constructors for the purpose of code coverage analysis.
This involves:
1.  Have the loader pass the start and size of the .ctors section to the
    kernel in 2 new metadata elements.
2.  Have the linker backends look for and record the start and size of
    the .ctors section in dynamically loaded modules.
3.  Have the linker backends call the constructors as part of the final
    work of initializing preloaded or dynamically loaded modules.

Note that LLVM appends the priority of the constructors to the name of
the .ctors section. Not so when compiling with GCC. The code currently
works for GCC and not for LLVM.

Submitted by:	Dmitry Mikulin <dmitrym@juniper.net>
Obtained from:	Juniper Networks, Inc.
2014-10-20 17:04:03 +00:00
bryanv
783bd6e089 Add vxlan interface
vxlan creates a virtual LAN by encapsulating the inner Ethernet frame in
a UDP packet. This implementation is based on RFC7348.

Currently, the IPv6 support is not fully compliant with the specification:
we should be able to receive UPDv6 packets with a zero checksum, but we
need to support RFC6935 first. Patches for this should come soon.

Encapsulation protocols such as vxlan emphasize the need for the FreeBSD
network stack to support batching, GRO, and GSO. Each frame has to make
two trips through the network stack, and each frame will be at most MTU
sized. Performance suffers accordingly.

Some latest generation NICs have begun to support vxlan HW offloads that
we should also take advantage of. VIMAGE support should also be added soon.

Differential Revision:	https://reviews.freebsd.org/D384
Reviewed by:	gnn
Relnotes:	yes
2014-10-20 14:42:42 +00:00
dumbbell
c08eaa2d43 vt(4): Refuse to load a font if hw.vga.textmode is selected
Before, the font was loaded and the window size recalculated, giving an
unusable terminal, even if the actual font didn't change.

Reported by:	beeessdee@ruggedinbox.com
MFC after:	3 days
2014-10-20 14:25:23 +00:00
loos
8655ac8645 Add another wakeup() after actually set the bus as free.
This fix a race where the threads waiting for the bus would wake up early
and still see bus as busy.

While here, give a better description to wmesg for the two use cases we
have (bus and io waiting).

MFC after:	1 week
2014-10-20 13:36:52 +00:00
mav
04644ebb84 Add another PCI ID for JMB368 PATA controller.
MFC after:	1 week
2014-10-20 13:18:52 +00:00
melifaro
72cb3fba5f Use copyout() directly instead of updating various fields
before/after each sooptcopyout() call.

Found by:	luigi
Sponsored by:	Yandex LLC
2014-10-20 11:21:07 +00:00
neel
dd2febd6f2 IFC @r273214 2014-10-20 02:57:30 +00:00
ian
ee6cf8f91f The U-Boot README says fdt_addr_r is the right env var for fdt data
loaded into ram, but vendors also use fdtaddr and fdt_addr.  Check the
recommended variable first and fall back to the others.
2014-10-20 01:52:17 +00:00
neel
53c23ba9a2 IFC @r273206 2014-10-19 23:05:18 +00:00
neel
13e9198693 Don't advertise the "OS visible workarounds" feature in cpuid.80000001H:ECX.
bhyve doesn't emulate the MSRs needed to support this feature at this time.

Don't expose any model-specific RAS and performance monitoring features in
cpuid leaf 80000007H.

Emulate a few more MSRs for AMD: TSEG base address, TSEG address mask and
BIOS signature and P-state related MSRs.

This eliminates all the unimplemented MSRs accessed by Linux/x86_64 kernels
2.6.32, 3.10.0 and 3.17.0.
2014-10-19 21:38:58 +00:00
andrew
722d08c19b Allow the armv6 kernel to be build with PHYSADDR undefined. The kernel
will now find the virtual to physical mapping for libkvm to use at
runtime. This makes PHYSADDR redundant, however keep it around to give
everyone a chance to update their libkvm.

MFC after:	1 week
2014-10-19 21:03:42 +00:00
andrew
9fc2375e53 Only build the ARM tranpoline when KERNPHYSADDR is defined as it is
otherwise unneeded in armv6 kernels.

MFC after:	1 week
2014-10-19 20:56:05 +00:00
andrew
63825ea043 Allow libkvm to get the kernel va to pa delta without the need for
physaddr. This should allow for a kernel where PHYSADDR and KERNPHYSADDR
are both undefined.

For now libkvm will use the old method of reading physaddr and kernaddr
to allow it to work with old kernels. This could be removed in the future
when enough time has passed.

Differential Revision:	https://reviews.freebsd.org/D939
MFC after:	1 week
2014-10-19 20:23:31 +00:00
ian
6cd79c01dc Attach this driver during BUS_PASS_BUS and move the cpu init code to a
bus_new_pass() handler so it doesn't happen until BUS_PASS_CPU.  This allows
the anatop driver to outbid the generic simplebus driver (which the FDT
data describes as compatible).

Some day when we handle power regulators, this driver may actually
become a functional simplebus and attach the regulators as children, as
described in the FDT data.
2014-10-19 18:41:22 +00:00
ian
d004bc05f3 Fail to probe on simplebus nodes that lack a "ranges" property.
Increasingly, FDT data has the "simple-bus" compatible string on nodes
that have children, but we wouldn't consider them to be busses.  If the
node lacks a ranges property then we will fail to attach successfully,
so fail to probe as well.
2014-10-19 18:31:11 +00:00
rpaulo
ac5bd81fc6 Style changes as pointed out by stas@.
MFC after:	1 week
2014-10-19 17:55:04 +00:00
np
e64855fef6 cxgb(4): reset the PHY if it generates an interrupt for no apparent reason.
MFC after:	1 week
2014-10-19 17:29:44 +00:00
gnn
291bf14fa0 Add new quirks for the latest Samsung SSD, model 850.
Submitted by:	sbruno
MFC after:	2 weeks
2014-10-19 16:46:36 +00:00
br
d6d9ee45cc Add driver for BERI soft processor 'ring buffer' device.
Ring device provides a way for communicate to BERI
peripherals such as BERI debug unit and console.

Sponsored by:	DARPA, AFRL
2014-10-19 16:26:49 +00:00
melifaro
4c24d0f039 Perform more checks on the number of tables supplied by user. 2014-10-19 11:15:19 +00:00
mjg
65ead9d18a Provide vfs suspension support only for filesystems which need it.
Need is expressed by providing vfs_susp_clean function in vfsops.

Differential Revision:	D952
Reviewed by:	kib (previous version)
MFC after:	2 weeks
2014-10-19 06:59:33 +00:00
adrian
9343e2e256 Convert a missed u_char cpu -> int cpu.
This was caught by a gcc build.

Reported by:	luigi
Sponsored by:	Norse Corp, Inc.
2014-10-19 04:38:02 +00:00
des
325f19fddb Add a complete implementation of MurmurHash3. Tweak both implementations
so they match the established idiom.  Document them in hash(9).

MFC after:	1 month
MFC with:	r272906
2014-10-18 22:15:11 +00:00
delphij
5165eb2973 Add tunable vfs.zfs.space_map_blksz for space map's maximum block size.
MFC after:	2 weeks
2014-10-18 22:11:10 +00:00
adrian
9b44fe556b Update the ULE scheduler + thread and kinfo structs to use int for cpuid
rather than u_char.

To try and play nice with the ABI, the u_char CPU ID values are clamped
at 254.  The new fields now contain the full CPU ID, or -1 for no cpu.

Differential Revision:	D955
Reviewed by:	jhb, kib
Sponsored by:	Norse Corp, Inc.
2014-10-18 19:36:11 +00:00
loos
073b7e1f4d Add a workaround needed to fix a bug of Arasan Host Controller where it may
lose the contents of consecutive writes (that happens within two SD card
clock cycles).

This fixes the causes of instability during the SD card detection and
identification on Raspberry Pi (which happens at 400 kHz and so was much
more vulnerable to this issue).

Remove the previous workaround which clearly can't provide the same effect.

MFC after:	1 week
Relnotes:	yes
2014-10-18 19:01:07 +00:00
loos
85f23d67de Fix the chan address for mtx_sleep() on bus wait. Without this fix the
threads waiting for the bus would never wake.

X-MFC-With: r270230
2014-10-18 18:27:24 +00:00
andrew
95ec3a85b3 Rework the Ti GPIO code to allow for both the OMAP4 and AM335X attachments
to be present. Thsi creates a new per-SoC driver that handles probe and
setting/getting the gpio flags.

Differential Revision:	https://reviews.freebsd.org/D943
Reviewed by:	loos, rpaulo
MFC after:	1 week
2014-10-18 17:51:34 +00:00
rpaulo
5e3149e8b3 Remove an unused mutex.
MFC after:	1 week
2014-10-18 17:36:57 +00:00
melifaro
bd97071f9a Use IPFW_RULE_CNTR_SIZE macro instead of non-relevant ip_fw_cntr structure.
Found by:	luigi
2014-10-18 17:23:41 +00:00
mav
18b36a8402 Make VPD 80h (Serial Number) transfer length match serial number length.
MFC after:	1 week
2014-10-18 17:11:02 +00:00
rpaulo
12cfd5c5b7 Make the ti_mbox and ti_pruss drivers optional.
MFC after:	1 week
2014-10-18 17:00:55 +00:00
rpaulo
dd5b16912c Add a driver for the TI watchdog.
The TI watchdog timer is present on BeagleBone's.  Since 2014, U-Boot
has been booting the BeagleBone with the watchdog enabled.  We need to
disable it on boot to avoid a spurious reset.
The timer isn't exactly precise, but it will do as a watchdog.  This
is also a reflection of the watchdog(9) API.

In the future, we could handle interrupts, but the watchdog(9) API
needs to be a bit smarter before that can happen.

Differential Revision:	https://reviews.freebsd.org/D965
Reviewed by:	andrew
MFC after:	1 week
Relnotes:	yes
2014-10-18 16:59:21 +00:00
rpaulo
21d1043fba AM335X FDT: use the oma3-wdt string for compatibility with Linux.
Submitted by:	andrew
MFC after:	1 week
2014-10-18 16:34:52 +00:00
hselasky
9bb1f4bbbc Add support for new USB 3G device.
Submitted by:	gabor@zahemszky.hu
MFC after:	1 week
2014-10-18 15:11:13 +00:00
andrew
56a311ab23 Add an elf not so kgdb detects the kernel as a FreeBSD elf file. The
ELFNOTE macro is based on one from the FreeBSD/ARM Xen tree [1].

Obtained from:	Julien Grall <julien.grall AT linaro.org> [1]
2014-10-18 13:38:04 +00:00
jhb
a619f7cffc Retire the unimplemented MAP_RENAME and MAP_NORESERVE flags to mmap(2).
Older binaries are still permitted to use these flags.

PR:		193961 (exp-run in ports)
Differential Revision:	https://reviews.freebsd.org/D848
Reviewed by:	kib
2014-10-18 12:28:51 +00:00
rpaulo
056aa8c190 AM335x FDT: add an entry for the watchdog.
MFC after:	1 week
2014-10-18 07:40:38 +00:00
neel
d5ca76422a Don't advertise support for the NodeID MSR since bhyve doesn't emulate it. 2014-10-18 05:39:32 +00:00
markj
38a908448e Use pmc_destroy_pmc_descriptor() to actually free the pmc, which is
consistent with pmc_destroy_owner_descriptor(). Also be sure to destroy
PMCs if a process exits or execs without explicitly releasing them.

Reviewed by:	bz, gnn
MFC after:	2 weeks
Sponsored by:	EMC / Isilon Storage Division
Differential Revision: https://reviews.freebsd.org/D958
2014-10-17 19:04:24 +00:00
davide
6fa012e88a Convert remaining {g,s}etenv->kern_{g,s}etenv
left over from r273174.

Reported by:    bz
2014-10-17 17:34:05 +00:00
melifaro
80a1a77bec * Remove route caching in if_stf.
* Copy necessary in6_ifa on stack instead of playing with refcounts.
2014-10-17 15:07:04 +00:00
emaste
7b498b51a1 Do nothing in vt_upgrade if there is no vt driver
Previously, if no drivers attached at boot we would panic with
"vtbuf_fill_locked begin.tp_row 0 must be < screen height 0".

PR:		192248
Reviewed by:	ray
MFC after:	3 days
Sponsored by:	DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D954
2014-10-17 13:55:45 +00:00
hselasky
47fe29a6d4 Add support for new USB 3G device.
Submitted by:	gabor@zahemszky.hu
MFC after:	1 week
2014-10-17 13:40:17 +00:00
imp
ad9f7e3038 Fix build to not bogusly always rebuild vmm.ko.
Rename vmx_assym.s to vmx_assym.h to reflect that file's actual use
and update vmx_support.S's include to match. Add vmx_assym.h to the
SRCS to that it gets properly added to the dependency list. Add
vmx_support.S to SRCS as well, so it gets built and needs fewer
special-case goo. Remove now-redundant special-case goo. Finally,
vmx_genassym.o doesn't need to depend on a hand expanded ${_ILINKS}
explicitly, that's all taken care of by beforedepend.

With these items fixed, we no longer build vmm.ko every single time
through the modules on a KERNFAST build.

Sponsored by: Netflix
2014-10-17 13:20:49 +00:00
trasz
dd166aeaa3 Remove useless debug.
Sponsored by:	The FreeBSD Foundation
2014-10-17 12:06:48 +00:00
hrs
95ad85717f - Fix lladdr configuration which could prevent LACP mode from working.
- Fix LORs when a laggport interface has an IPv6 LLA.

PR:	194321
2014-10-17 09:08:44 +00:00
bz
643c00b6ba After r273087,r273090,r273091,r273121 changes to gif(4) try to fix
NOIP builds for real.

MFC after:	27 days
2014-10-17 07:58:51 +00:00
ae
da21a8a9c1 Add provider's sectorsize and stripesize to confdot output.
Submitted by:	rpokala at panasas.com
2014-10-17 06:58:04 +00:00
neel
170f49cd34 Don't advertise the Instruction Based Sampling feature because it requires
emulating a large number of MSRs.

Ignore writes to a couple more AMD-specific MSRs and return 0 on read.

This further reduces the unimplemented MSRs accessed by a Linux guest on boot.
2014-10-17 06:23:04 +00:00
imp
0486efbb50 move linux*_locore.s and linux*_support.s to SRCS, remove the OBJS
entry and remove now-redunant dependencies. Add assym.s to
linux*_locore.s build, as it depends on it.

With this change, linux*.ko no longer builds every time through a
KERNFAST run.

Sponsored by: Netflix
2014-10-17 04:36:53 +00:00
imp
fbd1d9fe60 Don't depend on @ or machine for assym.s or genassym.o. That's a
vestige of a time when we needed to do that, but it is all handled by
beforedepend now. When we depend on the symlink, bmake will cause the
file to be rebuilt always.

With this change, dtrace.ko doesn't rebuild every time through a
KERNFAST run.

Sponsored by: Netfix
2014-10-17 04:36:48 +00:00
neel
b194fc5a2b Hide extended PerfCtr MSRs on AMD processors by clearing bits 23, 24 and 28 in
CPUID.80000001H:ECX.

Handle accesses to PerfCtrX and PerfEvtSelX MSRs by ignoring writes and
returning 0 on reads.

This further reduces the number of unimplemented MSRs hit by a Linux guest
during boot.
2014-10-17 03:04:38 +00:00
araujo
33df97f342 Make the sysctl(8) for checkutf8 positively defined and improve
the description of it.

Submitted by:	Ronald Klop <ronald-lists@klop.ws>
Reviewed by:	rmacklem
Approved by:	rmacklem
Sponsored by:	QNAP Systems Inc.
2014-10-17 02:11:09 +00:00
delphij
c27f7c8888 Remove duplicated code.
Suggested by:	jmg
2014-10-16 22:04:07 +00:00
sbruno
252f0a19cb Add 4k quirks for PM853T Samsung SSD
MFC after:	2 weeks
Sponsored by:	Limelight Networks
2014-10-16 20:33:04 +00:00