imp [Thu, 18 Feb 2016 15:12:52 +0000 (15:12 +0000)]
Remove a stray else. It isn't needed (due to the return at the end of
the if statement it pairs with). While not an error today, a careless
edit in the future could cause problems (though given the nature of
this specific code, the problems quite likely would be some variation
of "most direct access SCSI storage devices won't attach," which is
unlikely to go unnoticed).
zbb [Thu, 18 Feb 2016 13:07:21 +0000 (13:07 +0000)]
Extract common code from PowerPC's ofw_pci
Import portions of the PowerPC OF PCI implementation into
new file "ofw_pci.c", common for other platforms. The files ofw_pci.c and
ofw_pci.h from sys/powerpc/ofw no longer exist. All required declarations
are moved to sys/dev/ofw/ofw_pci.h.
This creates a new ofw_pci_write_ivar() function and modifies
ofw_pci_nranges(), ofw_pci_read_ivar(), ofw_pci_route_interrupt() methods.
Most functions contain existing ppc implementations in the majority
unchanged. Now there is no need to have multiple identical copies
of methods for various architectures.
zbb [Thu, 18 Feb 2016 13:00:04 +0000 (13:00 +0000)]
Introduce bus_get_bus_tag() method
Provide bus_get_bus_tag() for sparc64, powerpc, arm, arm64 and mips
nexus and its children in order to return a platform specific default tag.
This is required to ensure generic correctness of the bus_space tag.
It is especially needed for arches where child bus tag does not match
the parent bus tag. This solves the problem with ppc architecture
where the PCI bus tag differs from parent bus tag which is big-endian.
This commit is a part of the following patch:
https://reviews.freebsd.org/D4879
zbb [Thu, 18 Feb 2016 11:53:57 +0000 (11:53 +0000)]
Fix bug in ofwbus_release_resource() for non-ofwbus descendants
Resource list for devices that are not ofwbus descendants, but
got to ofwbus method via bus_generic_release_resource() call chain,
cannot be found using BUS_GET_RESOURCE_LIST() used by ofwbus.
In that case, changing device's resource list should be avoided
(will not contain resource list prepared by ofw or simplebus).
thomas [Thu, 18 Feb 2016 08:44:16 +0000 (08:44 +0000)]
Reorganize the handling all-zeroes terminal block in sparse mode
The intent of the previous code in that case was to force
an explicit write, but the implementation was incorrect, and
as a result the write was never performed. This new implementation
instead uses ftruncate(2) to extend the file with a trailing hole.
Also introduce regression tests for these cases.
PR: 189284
(original PR whose fix introduced this bug)
sephe [Thu, 18 Feb 2016 07:44:14 +0000 (07:44 +0000)]
hyperv/hn: Use buf_ring for txdesc list
So one spinlock is avoided, which would be potentially dangerous for
virtual machine, if the spinlock holder was scheduled out by the host,
as noted by royger.
Old spinlock based txdesc list is still kept around, so we could have
a safe fallback.
No performance regression nor improvement is observed.
Reviewed by: adrian
Approved by: adrian (mentor)
MFC after: 1 week
Sponsored by: Microsoft OSTC
Differential Revision: https://reviews.freebsd.org/D5290
sephe [Thu, 18 Feb 2016 07:23:05 +0000 (07:23 +0000)]
hyperv/hn: Use taskqueue_enqueue()
This also eases experiment on the non-fast taskqueue.
Reviewed by: adrian, Jun Su <junsu microsoft com>
Approved by: adrian (mentor)
MFC after: 1 week
Sponsored by: Microsoft OSTC
Differential Revision: https://reviews.freebsd.org/D5276
sephe [Thu, 18 Feb 2016 04:59:37 +0000 (04:59 +0000)]
hyperv/hn: Set the TCP ACK/data segment aggregation limit
Set TCP ACK append limit to 1, i.e. aggregate 2 ACKs at most. Aggregating
anything more than 2 hurts TCP sending performance in hyperv. This
significantly improves the TCP sending performance when the number of
concurrent connetion is low (2~8). And it greatly stabilizes the TCP
sending performance in other cases.
Set TCP data segments aggregation length limit to 37500. Without this
limitation, hn(4) could aggregate ~45 TCP data segments for each
connection (even at 64 or more connections) before dispatching them to
socket code; large aggregation slows down ACK sending and eventually
hurts/destabilizes TCP reception performance. This setting stabilizes
and improves TCP reception performance for >4 concurrent connections
significantly.
sephe [Thu, 18 Feb 2016 04:58:34 +0000 (04:58 +0000)]
tcp/lro: Allow drivers to set the TCP ACK/data segment aggregation limit
ACK aggregation limit is append count based, while the TCP data segment
aggregation limit is length based. Unless the network driver sets these
two limits, it's an NO-OP.
bdrewery [Thu, 18 Feb 2016 00:26:21 +0000 (00:26 +0000)]
Fix installation of makewhatis.local(1) since r283777.
The wrapper script has moved to libexec/makewhatis.local since it is not
directlry related to the older makewhatis(1) utility that has been replaced
by the usr.bin/mandoc version.
kib [Wed, 17 Feb 2016 19:43:03 +0000 (19:43 +0000)]
After nullfs rmdir operation, reclaim the directory vnode which was
unlinked. Otherwise the vnode stays cached, causing leak. This is
similar to r292961 for regular files.
Reported and tested by: pho (previous version)
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
kib [Wed, 17 Feb 2016 19:39:57 +0000 (19:39 +0000)]
In bnoreuselist(), check both ends of the specified logical block
numbers range.
This effectively skips indirect and extdata blocks on the buffer
queue. Since their logical block numbers are negative, bnoreuselist()
could loop infinitely.
Reported and tested by: pho
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
andrew [Wed, 17 Feb 2016 18:28:03 +0000 (18:28 +0000)]
Move the Allwinner kernels to use fdt_pinctrl. This will read the pin
configuration from the FDT data, then set the pins into the requested
state. As part of this the gpio controller now reports the correct number
of pins instead of returning the number of bank * 32.
To allow for a future consolidated kernel we add the SOC_ALLWINNER_A10 and
SOC_ALLWINNER_A20 kernel options. These need to be set as appropriate for
the SoC the kernel will boot on.
imp [Wed, 17 Feb 2016 17:16:02 +0000 (17:16 +0000)]
Create an API to reset a struct bio (g_reset_bio). This is mandatory
for all struct bio you get back from g_{new,alloc}_bio. Temporary
bios that you create on the stack or elsewhere should use this before
first use of the bio, and between uses of the bio. At the moment, it
is nothing more than a wrapper around bzero, but that may change in
the future. The wrapper also removes one place where we encode the
size of struct bio in the KBI.
skra [Wed, 17 Feb 2016 14:39:29 +0000 (14:39 +0000)]
Do not use PMAP_DOMAIN_KERNEL definition for __ARM_ARCH >= 6 as domains
are not utilized there. Only domain #0 is used and there is no reference
to it in the whole pmap-v6.c. Thus initialize domain access register in
locore-v6.c without reference too.
skra [Wed, 17 Feb 2016 12:36:24 +0000 (12:36 +0000)]
Remove pd_prot and pd_cache members from struct arm_devmap_entry.
The struct is used for definition of static device mappings which
should always have same protection and attributes.
skra [Wed, 17 Feb 2016 12:30:59 +0000 (12:30 +0000)]
Evaluate also VM_PROT_EXECUTE protection in pmap_preboot_map_attr().
Before this change all mappings done by this function were executable
as pte entries have NOT EXECUTABLE bit.
The function is used only for static device mappings at present. Thus
this is also a fix as DEVICE memory should not be mapped as executable.
jhb [Tue, 16 Feb 2016 22:00:01 +0000 (22:00 +0000)]
Fetch the current thread and it's syscall state from the trussinfo object
instead of passing some of that state as arguments to print_syscall() and
print_syscallret(). This just makes the calls of these functions shorter
and easier to read.
jhb [Tue, 16 Feb 2016 21:42:53 +0000 (21:42 +0000)]
The locking annotations for struct sockbuf originally used the key from
struct socket. When sockbuf.h was moved out of socketvar.h, the locking
key was no longer nearby. Instead, add a new key for sockbuf and use
a single item for the socket buffer lock instead of separate entries for
receive vs send buffers.
Reviewed by: adrian
Sponsored by: Chelsio Communications
Differential Revision: https://reviews.freebsd.org/D4901
bdrewery [Tue, 16 Feb 2016 16:07:12 +0000 (16:07 +0000)]
Revert r295648 for now.
This builds fine with FAST_DEPEND but the mkdep method requires that
include/ generates the headers during 'make depend' so the subsequent
directories can find them when running mkdep.
andrew [Tue, 16 Feb 2016 15:18:12 +0000 (15:18 +0000)]
Allow callers of OF_decode_addr to get the size of the found mapping. This
will allow for code that uses the old fdt_get_range and fdt_regsize
functions to find a range, map it, access, then unmap to replace this, up
to and including the map, with a call to OF_decode_addr.
As this function should only be used in the early boot code the unmap is
mostly do document we no longer need the mapping as it's a no-op, at least
on arm.
emaste [Tue, 16 Feb 2016 14:03:25 +0000 (14:03 +0000)]
Allow elfcopy to convert between two non-ELF formats
If the output object is not an ELF file, choose an arbitrary ELF format
for the intermediate file. srec, ihex and binary formats are independent
of class, endianness and machine type so these choices do not affect the
output.
ELF Tool Chain ticket #517
Reviewed by: kai
Obtained from: ELF Tool Chain r3411
skra [Tue, 16 Feb 2016 13:40:23 +0000 (13:40 +0000)]
Use EARLY_DRIVER_MODULE() for ti_scm driver to be attached before
am335x_prcm driver which uses it. Used BUS_PASS_BUS is a quick pick
for now and may be revised when other drivers start using multipass
feature.
This is needed after an update of Linux dts files done in r295436.
skra [Tue, 16 Feb 2016 12:19:06 +0000 (12:19 +0000)]
Do not use DMA channels used by GPU.
(1) The channel mask is get from "brcm,dma-channel-mask" property of
dma node, and if not provided, from "broadcom,channels" property.
(2) Consequently, sdhci driver does not allocate any specific channel.
(3) Use CS_RESET bit for initial channel reset.
andrew [Tue, 16 Feb 2016 11:45:46 +0000 (11:45 +0000)]
Add an analog audio driver for the audio codec found on the Allwinner
A10/A20 SoC. Based loosely on the submitters NetBSD driver, tested on
Cubieboard 2. Playback and capture are supported.
Submitted by: Jared McNeill <jmcneill@invisible.ca>
Differential Revision: https://reviews.freebsd.org/D5202
zbb [Tue, 16 Feb 2016 11:43:57 +0000 (11:43 +0000)]
Support PEM that is not a PCI endpoint on ThunderX
Some chip revisions don't have their external PCIe buses
behind the internal bridge. Add support for FDT-configurable
PEMs but keep ability for PCIe enumeration.
jhb [Mon, 15 Feb 2016 20:26:40 +0000 (20:26 +0000)]
Sign extend the error value for failing Linux/i386 system calls. This
restores the mapping of Linux errors to native FreeBSD errno values after
the refactoring in r288424.
pfg [Mon, 15 Feb 2016 18:13:33 +0000 (18:13 +0000)]
fputs: Return the number of bytes written.
POSIX.1-2008 requires that successful completion simply return a
non-negative integer. We have regularly returned a constant value.
Another, equally valid, implementation convention implies returning
the number of bytes written.
Adopt this last convention to be in line with what Apple's libc
does. POSIX also explicitly notes:
Note that this implementation convention cannot be adhered to for strings
longer than {INT_MAX} bytes as the value would not be representable in the
return type of the function. For backwards-compatibility, implementations
can return the number of bytes for strings of up to {INT_MAX} bytes, and
return {INT_MAX} for all longer strings.
Developers shouldn't depend specifically on either convention but
the change may help port software from Apple.
Differential Revision: https://reviews.freebsd.org/D442 (Partial)
Obtained from: Apple Inc. (Libc 997.90.3 with changes)
Relnotes: yes
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