andrew [Sat, 20 Jul 2013 09:24:48 +0000 (09:24 +0000)]
Start adding support to build bits of our code using the Thumb-2
instruction set. Thumb-2 requires an if-then instruction to implement
conditional codes.
When building for ARM mode the it-then instructions do not generate any
assembled instruction as per the ARMv7-A Architecture Reference Manual, and
are safe to use.
While this allows the atomic instructions to be built, it doesn't mean we
fully support Thumb code. It works in small tests, but is still known to
fail in a large number of places.
While here add a check for the armv6t2 architecture.
Add support for upcoming BCM5725 (ASIC 5762) controller. This is a
new 1Gb server controller chip that will be going into production
soon.
BCM5725 combines MAC with triple-speed PHY, a Network Controller
Sideband Interface (NC-SI) and on-chip memory buffer in a single
device. BCM5725 has an Application Processing Engine (APE) that is
capable of on-chip management and offloading features. BCM5725
supports high-precision clock, time stamp registers for
receive/transmit packets and programmable trigger inputs and
watchdog timeouts. These new features are not yet supported by
bge(4).
Many thanks to Broadcom for continuing to support FreeBSD!
Setup the PCIE Fast Training Sequence (FTS) value to prevent
transmit hangs for 57766 and non Ax versions of 57765.
While here, correct definition of BGE_CHIPREV_57765_AX.
When birthtime was added (r253331) we missed adding the weight
of the new fields in FUSE_COMPAT_ENTRY_OUT_SIZE and
COMPAT_ATTR_OUT_SIZE. Adjust them accordingly.
Add message when nvd disks are attached and detached.
As part of this commit, add an nvme_strvis() function which borrows
heavily from cam_strvis(). This will allow stripping of
leading/trailing whitespace and also handle unprintable characters
in model/serial numbers. This function goes into a new nvme_util.c
file which is used by both the driver and nvmecontrol.
Sponsored by: Intel
Reviewed by: carl
MFC after: 3 days
Fix nvme(4) and nvd(4) to support non 512-byte sector sizes.
Recent testing with QEMU that has variable sector size support for
NVMe uncovered some of these issues. Chatham prototype boards supported
only 512 byte sectors.
Sponsored by: Intel
Reviewed by: carl
MFC after: 3 days
Be more aggressive in using superpages in all mappings of objects:
- Add a new address space allocation method (VMFS_OPTIMAL_SPACE) for
vm_map_find() that will try to alter the alignment of a mapping to match
any existing superpage mappings of the object being mapped. If no
suitable address range is found with the necessary alignment,
vm_map_find() will fall back to using the simple first-fit strategy
(VMFS_ANY_SPACE).
- Change mmap() without MAP_FIXED, shmat(), and the GEM mapping ioctl to
use VMFS_OPTIMAL_SPACE instead of VMFS_ANY_SPACE.
Since there's no defined schema for the XML that's generated by the
kern.geom.confxml sysctl, it's silly to warn about tags in libgeom,
especially since libgeom exists simply to build a tree out of the conf
information.
Add a function to return the specific type, when the note's Name field is
'FreeBSD'.
r249558 added FreeBSD-specific ELF note types that reuse type numbers of
existing generic / Linux types. This caused 'readelf -n' to produce
incorrect output on FreeBSD core files.
Properly handle I/O windows in bridges with the ISA enable bit set. These
beasts still exist unfortunately. More details can be found in other
references, but the short version is that bridges with this bit set ignore
I/O port ranges that alias to valid ISA I/O port ranges. In the driver
this requires not allocating these alias regions from the parent device
(so they are free to be acquired by ISA devices), and ensuring no child
devices use resources from these alias regions.
- Change the pcib_window structure to allow for an array of backing
resources rather than a single resource and update the existing code
to cope with this. Some of the coping requires using the saved
base and limit values in pcib_window instead of using rman operations
on the backing resource.
- Add special handling for allocating and adjusting the I/O port window
of an ISA-enabled bridge to only allocate the non-alias ranges and
add those to the associated resource manager.
- Reject I/O port allocations for a fixed request that conflicts with an
ISA alias range.
- Remove the "no prefected decode" verbose printf during boot. The absence
of a "prefetched decode" line is sufficient.
- Replace the "subtractively decoded bridge" verbose printf with a single
printf that lists all the "special" decoding modes of a bridge: ISA,
subtractive, and VGA.
- Add a custom bus_release_resource() method to the PCI bus driver so that
it can properly free resources for I/O windows of PCI-PCI bridges.
(These resources are not stored in the bridge device's resource list.)
Rework the previous fix for the IB vs Ethernet sysctl handler to be more
generic and apply to all sysfs attributes:
- Use sysctl_handle_string() instead of reimplementing it.
- Remove trailing newline from the current value before passing it to
userland and append a newline to the new string value before passing it
to the attribute's store function.
- Don't leak the temporary buffer if the first error check triggers.
- Revert earlier change to mlx4 port mode handler.
PR: kern/174213
Submitted by: Garrett Cooper
Reviewed by: Shakar Klein @ Mellanox
MFC after: 1 week
Use pause() instead of DELAY() when polling for completion of admin
commands during controller initialization.
DELAY() does not work here during config_intrhook context - we need to
explicitly relinquish the CPU for the admin command completion to
get processed.
Sponsored by: Intel
Reported by: Adam Brooks <adam.j.brooks@intel.com>
Reviewed by: carl
MFC after: 3 days
In this GRN, Marcel Moolenaar overhauled the logic for mounting
the root file system on bootup:
|------------------------------------------------------------------------
|r214006 | marcel | 2010-10-17 22:01:53 -0700 (Sun, 17 Oct 2010) | 20 lines
|
| Re-implement the root mount logic using a recursive approach, whereby each
|root file system (starting with devfs and a synthesized configuration) can
|contain directives for mounting another file system as root.
|------------------------------------------------------------------------
This commit adds a mount.conf(8) man page which documents
the root mount logic. mount.conf(8) also provides some examples
for the /.mount.conf file, which can be used to change the root mount behavior.
- Add support of MK_INET_SUPPORT=no.
- Fix a bug in sodump() which prevented struct sockaddr_in6 from displaying.
- Fix a bug in in fiboptlist_csv() which could cause free() of uninitialized
pointer.
- Style cleanups:
. Add missing "static" keywords.
. Use an array of struct sockaddr_storage instead of sockunion for rtmsg.
. Use err() and errx() instead of pair of fprintf(stderr, "...") + exit(1).
. Use nitems() macro.
. Various style(9) fixes.
Implement workaround for BCM5719/BCM5720 TX hang.
The read DMA request logic operation is based on having sufficient
available space in the transmit data buffer (TXMBUF) before a read
DMA can be requested. There are four read DMA channels that use
the TXMBUF, and the logic checks if the available free space in the
TXMBUF is large enough for all the data in the four Send Buffers
for which buffer descriptors have been fetched. The Enable_Request
signal is asserted only if the free TXMBUF space is larger than the
sum of the four DMA length registers. The power-up default value
of BGE_RDMA_LSO_CRPTEN_CTRL register bit 25 (bit 21 on BCM5720) is
zero, which selects the DMA length registers to connect to the
input of the adder block. The DMA length registers are
asynchronously reset following BCM5719/BCM5720 power-up, and due to
the lack of synchronous deassertion of the length registers reset
signal these resisters may contain uninitialized values following
the reset deassertion.
In the case of the failure the uninitialized DMA length register
values added up to more than the TXMBUF size, which prevented the
assertion of the Enable_Request signal and any subsequent read DMA
to start. This lockup condition is the root cause of failing to
generate any transmit traffic.
To workaround the issue, select alternate output of multiplexers
and transmit the first four Ethernet frames. This overwrites the
DMA length registers with valid values.
o TxD ring requires 8 bytes alignment to work so change alignment
constraint to 8. Previously it may have triggered watchdog
timeouts.
o Check whether interrupt is ours or not.
o Enable interrupts before attemping to transmit queued packets.
This will slightly improve TX performance.
o No need to clear IFF_DRV_OACTIVE in a loop. AE_FLAG_TXAVAIL is
used to know whether there are enough available TxD ring space.
o Added missing bus_dmamap_sync(9) in ae_rx_intr() and rearranged
code to avoid unncessary register access.
o Make sure to clear TxD, TxS, RxD rings in driver initialization.
Otherwise some data in these rings could be interpreted as
'updated' which in turn will advance internally maintained
pointers and can trigger watchdog timeouts.
andrew [Tue, 16 Jul 2013 23:19:05 +0000 (23:19 +0000)]
Fix vfp:
- We should check is_d32 to see howmany registers we have
- In vfp_restore mark vfpscr as an output register
Without the second part it appears we can return the incorrect value from
vfp_bounce if the VFP condition flags are set as it may override the
register holding the return value.
andrew [Tue, 16 Jul 2013 19:15:19 +0000 (19:15 +0000)]
2 years, 10 months, 22 days after the projects/arm_eabi branch was created
make the ARM EABI the default ABI on arm, armeb, armv6 and armv6eb.
This is intended to be the default ABI from now on with the old ABI to be
retired. Because of this all users are strongly suggested to upgrade to the
ARM EABI.
As the two ABIs are incompatible it is unlikely upgrading in place will
work. Users should perform a full backup and either use an external machine
to upgrade, or install to an alternative location on their media. They
should also reinstall all ports or packages when these are available.
The only known issues are:
- pkg incorrectly detects the ABI. This is fixed upstream, and will a
patch will be made to the port.
- GDB can have issues with executables built with clang.
Do not throw an error if the user requests to activate the image from
an empty firmware slot, as long as the user has specified a firmware
image to download into the empty firmware slot.
Sponsored by: Intel
Reported by: Joe Golio <joseph.golio@emc.com>
MFC after: 3 days
Workaround some broken BIOSes that specify edge-sensitive but active-low
settings for ACPI-enumerated serial ports by forcing any IRQs that use
an ISA IRQ value with these settings to active-high instead of active-low.
This is known to occur with the BIOS on an Intel D2500CCE motherboard.
Tested by: Robert Ames <robertames@hotmail.com>, lev
Submitted by: Juergen Weiss weiss at uni-mainz.de (original patch)
Nuke mbstat. It wasn't used for mbuf statistics since FreeBSD 5.
Now that r253351 moved sendfile() stats to a separate struct, the
last field used in mbstat is m_mcfail, which is updated, but never
read or obtained from userland.
Introduce new structure sfstat for collecting sendfile's statistics
and remove corresponding fields from struct mbstat. Use PCPU counters
and SFSTAT_INC() macro for update these statistics.
Fix multiple kernel panics when VIMAGE is enabled in the kernel.
These fixes are based on patches submitted by Adrian Chadd and Marko Zec.
(1) Set curthread->td_vnet to vnet0 in device_probe_and_attach() just before calling
device_attach(). This fixes multiple VIMAGE related kernel panics
when trying to attach Bluetooth or USB Ethernet devices because
curthread->td_vnet is NULL.
(2) Set curthread->td_vnet in if_detach(). This fixes kernel panics when detaching networking
interfaces, especially USB Ethernet devices.
(3) Use VNET_DOMAIN_SET() in ng_btsocket.c
(4) In ng_unref_node() set curthread->td_vnet. This fixes kernel panics
when detaching Netgraph nodes.
Bring in the changes from the FUSE kernel interface 7.10
(available under a BSD license).
After 7.10 the linux FUSE developers added support for a
controversial CUSE driver and some linux especific
features that are unlikely to find its way into FreeBSD.
We currently don't implement any of the new features so we
are *not* bumping the FUSE_KERNEL_MINOR_VERSION. The header
should, nevertheless, serve as a template to add the new
features in a compatible manner.
While here adopt some minor cleanups from the upstream version
like removing FUSE_MAJOR and FUSE_MINOR which were never
used. Also add multiple inclusion header guards,
We need to fix wpa_supplicant because it checks whether the card has
ic_cryptocaps set. Since net80211 can do software encryption this check in
wpa_supplicant is wrong.
Re-implement $probe_only aspect of f_media_get_TYPE() (where TYPE is cdrom,
nfs, ftp, http, httpproxy, etc.) and f_device_get() (abstract method for
calling aforementioned f_media_get_TYPE()).
Previously, if $probe_only was present and non-NULL, the TYPE functions
would check for $file and exit with an appropriate error status (success if
the file exists and readable, failure otherwise).
While this has been retained, a pair of globals has been introduced:
$PROBE_EXIST and $PROBE_SIZE (see `/usr/share/bsdconfig/media/common.subr')
The $PROBE_EXIST global can be used where you need the functionality of
simply testing for existence (previously the _only_ functionality).
Meanwhile, the new $PROBE_SIZE global can be used to cause the TYPE function
to print the size of the file (in bytes) on standard-out (or -1) if not
found or an error occurs. NOTE: If an error occurs, it is logged with the
dprintf function, which is visible with `-d' flag or debug=1.
In many cases, where you need to get the size of a file _and_ check for its
existence, you can use the return status of a $PROBE_SIZE call.
Allow regular off-the-shelf keyboards to be overclocked like so-called
"Gamers Keyboards" by adding a tunable, "hw.usb.ukbd.pollrate", which
can fix the polling rate of the attached USB keyboards in the range
1..1000Hz. A similar feature already exists in the USB mouse
driver. Use with care! Might leave you without keyboard input. This
feature is only available when the USB_DEBUG option is set in the
kernel configuration file.
Add creation timestamp (birthtime) support for fuse.
I was keeping this #ifdef'd for reference with the MacFUSE change[1]
but on second thought, this is a FreeBSD-only header so the SVN
history should be enough.
When fiddling with options of which registers to copy out for
a mailbox command and which registers to copy back in when
the command completes, the bits being set need to not only
specify what bits you want to add from the default from the
table but also what bits you want *subtract* (mask) from the
default from the table.
A failing ISP2200 command pointed this out.
Much appreciation to: marius, who persisted and narrowed down what
the failure delta was, and shamed me into actually fixing it.
MFC after: 1 week
Create a proper stack frame for i386 version of bcopy(), despite the
function is leaf. The frame allows ddb to not loose the direct caller
of bcopy() in backtrace.
Other functions from support.s would benefit from the same change as
well, but for now bcopy() is the most frequent offender.
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
projects / FreeBSD / FreeBSD.git / log