Commit Graph

177 Commits

Author SHA1 Message Date
Zbigniew Bodek
18c72666ce Add domain support to PCI bus allocation
When the system has more than a single PCI domain, the bus numbers
are not unique, thus they cannot be used for "pci" device numbering.
Change bus numbers to -1 (i.e. to-be-determined automatically)
wherever the code did not care about domains.

Reviewed by:   jhb
Obtained from: Semihalf
Sponsored by:  The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D3406
2015-09-16 23:34:51 +00:00
Mark Murray
d1b06863fb Huge cleanup of random(4) code.
* GENERAL
- Update copyright.
- Make kernel options for RANDOM_YARROW and RANDOM_DUMMY. Set
  neither to ON, which means we want Fortuna
- If there is no 'device random' in the kernel, there will be NO
  random(4) device in the kernel, and the KERN_ARND sysctl will
  return nothing. With RANDOM_DUMMY there will be a random(4) that
  always blocks.
- Repair kern.arandom (KERN_ARND sysctl). The old version went
  through arc4random(9) and was a bit weird.
- Adjust arc4random stirring a bit - the existing code looks a little
  suspect.
- Fix the nasty pre- and post-read overloading by providing explictit
  functions to do these tasks.
- Redo read_random(9) so as to duplicate random(4)'s read internals.
  This makes it a first-class citizen rather than a hack.
- Move stuff out of locked regions when it does not need to be
  there.
- Trim RANDOM_DEBUG printfs. Some are excess to requirement, some
  behind boot verbose.
- Use SYSINIT to sequence the startup.
- Fix init/deinit sysctl stuff.
- Make relevant sysctls also tunables.
- Add different harvesting "styles" to allow for different requirements
  (direct, queue, fast).
- Add harvesting of FFS atime events. This needs to be checked for
  weighing down the FS code.
- Add harvesting of slab allocator events. This needs to be checked for
  weighing down the allocator code.
- Fix the random(9) manpage.
- Loadable modules are not present for now. These will be re-engineered
  when the dust settles.
- Use macros for locks.
- Fix comments.

* src/share/man/...
- Update the man pages.

* src/etc/...
- The startup/shutdown work is done in D2924.

* src/UPDATING
- Add UPDATING announcement.

* src/sys/dev/random/build.sh
- Add copyright.
- Add libz for unit tests.

* src/sys/dev/random/dummy.c
- Remove; no longer needed. Functionality incorporated into randomdev.*.

* live_entropy_sources.c live_entropy_sources.h
- Remove; content moved.
- move content to randomdev.[ch] and optimise.

* src/sys/dev/random/random_adaptors.c src/sys/dev/random/random_adaptors.h
- Remove; plugability is no longer used. Compile-time algorithm
  selection is the way to go.

* src/sys/dev/random/random_harvestq.c src/sys/dev/random/random_harvestq.h
- Add early (re)boot-time randomness caching.

* src/sys/dev/random/randomdev_soft.c src/sys/dev/random/randomdev_soft.h
- Remove; no longer needed.

* src/sys/dev/random/uint128.h
- Provide a fake uint128_t; if a real one ever arrived, we can use
  that instead. All that is needed here is N=0, N++, N==0, and some
  localised trickery is used to manufacture a 128-bit 0ULLL.

* src/sys/dev/random/unit_test.c src/sys/dev/random/unit_test.h
- Improve unit tests; previously the testing human needed clairvoyance;
  now the test will do a basic check of compressibility. Clairvoyant
  talent is still a good idea.
- This is still a long way off a proper unit test.

* src/sys/dev/random/fortuna.c src/sys/dev/random/fortuna.h
- Improve messy union to just uint128_t.
- Remove unneeded 'static struct fortuna_start_cache'.
- Tighten up up arithmetic.
- Provide a method to allow eternal junk to be introduced; harden
  it against blatant by compress/hashing.
- Assert that locks are held correctly.
- Fix the nasty pre- and post-read overloading by providing explictit
  functions to do these tasks.
- Turn into self-sufficient module (no longer requires randomdev_soft.[ch])

* src/sys/dev/random/yarrow.c src/sys/dev/random/yarrow.h
- Improve messy union to just uint128_t.
- Remove unneeded 'staic struct start_cache'.
- Tighten up up arithmetic.
- Provide a method to allow eternal junk to be introduced; harden
  it against blatant by compress/hashing.
- Assert that locks are held correctly.
- Fix the nasty pre- and post-read overloading by providing explictit
  functions to do these tasks.
- Turn into self-sufficient module (no longer requires randomdev_soft.[ch])
- Fix some magic numbers elsewhere used as FAST and SLOW.

Differential Revision: https://reviews.freebsd.org/D2025
Reviewed by: vsevolod,delphij,rwatson,trasz,jmg
Approved by: so (delphij)
2015-06-30 17:00:45 +00:00
Jung-uk Kim
fd90e2ed54 CALLOUT_MPSAFE has lost its meaning since r141428, i.e., for more than ten
years for head.  However, it is continuously misused as the mpsafe argument
for callout_init(9).  Deprecate the flag and clean up callout_init() calls
to make them more consistent.

Differential Revision:	https://reviews.freebsd.org/D2613
Reviewed by:	jhb
MFC after:	2 weeks
2015-05-22 17:05:21 +00:00
Andrew Turner
405ada37fb Add support for the uart classes to set their default register shift value.
This is needed with the pl011 driver. Before this change it would default
to a shift of 0, however the hardware places the registers at 4-byte
addresses meaning the value should be 2.

This patch fixes this for the pl011 when configured using the fdt. The
other drivers have a default value of 0 to keep this a no-op.

MFC after:	1 week
2015-04-11 17:16:23 +00:00
Luiz Otavio O Souza
7836352b50 Implement GPIO_GET_BUS() method for all GPIO drivers.
Add helper routines to deal with attach and detach of gpiobus and gpioc
devices that are common to all drivers.
2015-01-31 19:32:14 +00:00
Luiz Otavio O Souza
0398637236 Replace spaces with tabs, this will easier future changes on softc
structure.

No functional changes.
2015-01-31 12:43:30 +00:00
Luiz Otavio O Souza
876c1bd8b0 Clean up and fix the device detach routine and the failure path on GPIO
drivers.

This paves the way for upcoming work.
2015-01-31 12:17:07 +00:00
Hans Petter Selasky
b217d18412 Add 64-bit DMA support in the XHCI controller driver.
- Fix some comments and whitespace while at it.

MFC after:	1 month
Submitted by:	marius@
2015-01-05 20:22:18 +00:00
Luiz Otavio O Souza
667357dc9b Moves all the duplicate code to a single function.
Verify for invalid modes and unwanted flags before pass the new flags to
driver.
2014-11-18 17:22:08 +00:00
Luiz Otavio O Souza
8839e0e9f3 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
Gleb Smirnoff
d8cc52c9a1 Mechanically convert to if_inc_counter(). 2014-09-19 09:19:49 +00:00
Adrian Chadd
066da8050b Migrate ie->ie_assign_cpu and associated code to use an int for CPU rather
than u_char.

Migrate post_filter to use an int for a CPU rather than u_char.

Change intr_event_bind() to use an int for CPU rather than u_char.

It touches the ppc, sparc64, arm and mips machdep code but it should
(hah!) be a no-op.

Tested:

* i386, AMD64 laptops

Reviewed by:	jhb
2014-09-17 17:33:22 +00:00
Alexander Kabaev
5569a794d6 Fix RTC clock writes on many Octeon boards.
The struct clocktime uses 0-based week day number, so back out part of
r229161 by gonzo, which actually broke the RTC clock writes on Sundays.
2014-09-14 00:02:40 +00:00
Alexander Kabaev
7cb7fbdee6 Add delay to Octeon MDIO access routines.
Prevent saturattion of the bus by constant polling which in
extreme cases can cause interface lockup. This makes FreeBSD
match similar case in the executive.
2014-09-14 00:02:37 +00:00
Gleb Smirnoff
1bffa9511f Use define from if_var.h to access a field inside struct if_data,
that resides in struct ifnet.

Sponsored by:	Nginx, Inc.
2014-08-30 19:55:54 +00:00
Hans Petter Selasky
af3b2549c4 Pull in r267961 and r267973 again. Fix for issues reported will follow. 2014-06-28 03:56:17 +00:00
Glen Barber
37a107a407 Revert r267961, r267973:
These changes prevent sysctl(8) from returning proper output,
such as:

 1) no output from sysctl(8)
 2) erroneously returning ENOMEM with tools like truss(1)
    or uname(1)
 truss: can not get etype: Cannot allocate memory
2014-06-27 22:05:21 +00:00
Hans Petter Selasky
3da1cf1e88 Extend the meaning of the CTLFLAG_TUN flag to automatically check if
there is an environment variable which shall initialize the SYSCTL
during early boot. This works for all SYSCTL types both statically and
dynamically created ones, except for the SYSCTL NODE type and SYSCTLs
which belong to VNETs. A new flag, CTLFLAG_NOFETCH, has been added to
be used in the case a tunable sysctl has a custom initialisation
function allowing the sysctl to still be marked as a tunable. The
kernel SYSCTL API is mostly the same, with a few exceptions for some
special operations like iterating childrens of a static/extern SYSCTL
node. This operation should probably be made into a factored out
common macro, hence some device drivers use this. The reason for
changing the SYSCTL API was the need for a SYSCTL parent OID pointer
and not only the SYSCTL parent OID list pointer in order to quickly
generate the sysctl path. The motivation behind this patch is to avoid
parameter loading cludges inside the OFED driver subsystem. Instead of
adding special code to the OFED driver subsystem to post-load tunables
into dynamically created sysctls, we generalize this in the kernel.

Other changes:
- Corrected a possibly incorrect sysctl name from "hw.cbb.intr_mask"
to "hw.pcic.intr_mask".
- Removed redundant TUNABLE statements throughout the kernel.
- Some minor code rewrites in connection to removing not needed
TUNABLE statements.
- Added a missing SYSCTL_DECL().
- Wrapped two very long lines.
- Avoid malloc()/free() inside sysctl string handling, in case it is
called to initialize a sysctl from a tunable, hence malloc()/free() is
not ready when sysctls from the sysctl dataset are registered.
- Bumped FreeBSD version to indicate SYSCTL API change.

MFC after:	2 weeks
Sponsored by:	Mellanox Technologies
2014-06-27 16:33:43 +00:00
Ed Maste
0fcefb433d Update NetBSD Foundation copyrights to 2-clause BSD
The NetBSD Foundation states "Third parties are encouraged to change the
license on any files which have a 4-clause license contributed to the
NetBSD Foundation to a 2-clause license."

This change removes clauses 3 and 4 from copyright / license blocks that
list The NetBSD Foundation as the only copyright holder.

Sponsored by:	The FreeBSD Foundation
2014-03-18 01:40:25 +00:00
Warner Losh
294ef64a17 Introduce grab and ungrab upcalls. When the kernel desires to grab the
console, it calls the grab functions. These functions should turn off
the RX interrupts, and any others that interfere. This makes mountroot
prompt work again. If there's more generalized need other than
prompting, many of these routines should be expanded to do those new
things.

Reviewed by:	bde (with reservations)
2014-01-19 19:36:11 +00:00
Warner Losh
6a187a73c3 Remove two redundantly repetitive assignments. 2014-01-16 20:40:02 +00:00
Juli Mallett
47281130c2 Add missing includes. 2013-12-10 09:38:18 +00:00
Warner Losh
bf100f266b Remove the gross hack for the Octeon Simple Executive to the least
intrusive place for it to be: the octeon std file.
Fix a comment while I'm here.
Allow for future architectural specific flags.

Reviewed by:	jmallet@
2013-11-06 05:26:15 +00:00
Nathan Whitehorn
5543a1b98e Devices that rely on hints or identify routines for discovery need to
return BUS_PROBE_NOWILDCARD from their probe routines to avoid claiming
wildcard devices on their parent bus. Do a sweep through the MIPS tree.

MFC after: 2 weeks
2013-10-29 14:07:31 +00:00
Gleb Smirnoff
66e01d73cd - Provide necessary includes.
- Remove unnecessary includes.

Sponsored by:	Netflix
Sponsored by:	Nginx, Inc.
2013-10-29 11:17:49 +00:00
Mark Murray
f02e47dc1e Snapshot. This passes the build test, but has not yet been finished or debugged.
Contains:

* Refactor the hardware RNG CPU instruction sources to feed into
the software mixer. This is unfinished. The actual harvesting needs
to be sorted out. Modified by me (see below).

* Remove 'frac' parameter from random_harvest(). This was never
used and adds extra code for no good reason.

* Remove device write entropy harvesting. This provided a weak
attack vector, was not very good at bootstrapping the device. To
follow will be a replacement explicit reseed knob.

* Separate out all the RANDOM_PURE sources into separate harvest
entities. This adds some secuity in the case where more than one
is present.

* Review all the code and fix anything obviously messy or inconsistent.
Address som review concerns while I'm here, like rename the pseudo-rng
to 'dummy'.

Submitted by:	Arthur Mesh <arthurmesh@gmail.com> (the first item)
2013-10-04 06:55:06 +00:00
Mark Murray
c6c7b2912c Yarrow wants entropy estimations to be conservative; the usual idea
is that if you are certain you have N bits of entropy, you declare
N/2.
2013-09-06 17:51:52 +00:00
Warner Losh
2018efd098 This file isn't derived from anything delivered by Berkeley, so remove
this statement.
2013-07-22 03:55:15 +00:00
Warner Losh
57f37a2584 Use cvmx_mgmt_port_num_ports() instead of the inlined copy of a
previous version of this function.
2013-05-02 19:47:36 +00:00
Warner Losh
8e015fd886 Octeon 2 (6xxx) and newer CPUs don't use the clock CPU speed for its
I/O clock. Thankfully, the simple executive provies a way to querry
the proper clock that works on all models. Move to asking for the SCLK
via this interface.

This gets the serial console working after we start init and open the
console and set the divisor (which turned the output from good to
bad). I can login on the console now.
2013-04-26 05:42:35 +00:00
Dimitry Andric
27e644a80b Fix undefined behaviour in several gpio_pin_setflags() routines (under
sys/arm and sys/mips), squelching the clang 3.3 warnings about this.

Noticed by:	tinderbox and many irate spectators
Submitted by:	Luiz Otavio O Souza <loos.br@gmail.com>
PR:		kern/177759
MFC after:	3 days
2013-04-13 21:21:13 +00:00
Attilio Rao
590f9303e5 Merge from vmobj-rwlock branch:
Remove unused inclusion of vm/vm_pager.h and vm/vnode_pager.h.

Sponsored by:	EMC / Isilon storage division
Tested by:	pho
Reviewed by:	alc
2013-02-26 01:00:11 +00:00
Gleb Smirnoff
eb1b1807af Mechanically substitute flags from historic mbuf allocator with
malloc(9) flags within sys.

Exceptions:

- sys/contrib not touched
- sys/mbuf.h edited manually
2012-12-05 08:04:20 +00:00
Juli Mallett
85129b4bd4 Use bootverbose to control debug printfs from the Cavium Simple Executive
code.  Also remove an unnecessary CVMX_ENABLE_DEBUG_PRINTS conditional around
what is already a cvmx_dprintf.
2012-11-24 02:12:24 +00:00
Juli Mallett
01a310bd57 o) Add support for specifying a model of Octeon to target at compile-time,
reducing the number of runtime checks done by the SDK code.
o) Group board/CPU information at early startup by subject matter, so that e.g.
   CPU information is adjacent to CPU information and board information is
   adjacent to board information.
2012-11-24 02:00:29 +00:00
Juli Mallett
fcd5eed4f0 Prevent hang on ATCA-7220 when transmitting packets < 60 bytes. 2012-11-19 08:30:29 +00:00
Juli Mallett
d0ebf478da Remove redundant printf of SDK version which already appears earlier in boot. 2012-11-19 08:29:53 +00:00
Juli Mallett
8aff4e5fdd Add basic support for the Radisys-specific PCI console mechanism found on the
Radisys ATCA-7220.
2012-11-19 01:58:20 +00:00
Juli Mallett
8961aadb2b o) Do boot descriptor parsing before console setup so that we can use a console
other than UART 0 from the outset.
o) Print board information from sysinfo after consoles have been initialized
   rather than doing it during boot descriptor parsing.
o) Use cvmx_safe_printf and platform_reset rather than panic when doing very
   early boot descriptor parsing before the console is set up.
o) Get rid of the global octeon_bootinfo.
2012-11-19 00:19:27 +00:00
Juli Mallett
36e83ea016 Add preliminary Octeon PCI console support. Radisys-specific PCI console
support may follow soon (it uses a proprietary memory layout, but operation
looks pretty trivial.)
2012-11-13 07:39:49 +00:00
Juli Mallett
405b925e39 Don't disable PCIe just because the host is not a PCI host; the latter flag
only applies to non-PCIe systems.  If PCIe is in target mode, it will simply
and gracefully fail to attach of its own accord.
2012-11-01 20:39:39 +00:00
Juli Mallett
ca765bc7ab Fix longstanding misprint. 2012-10-31 04:44:32 +00:00
Juli Mallett
3ef3b736dc If the CF physical base is 0, attach no CF devices. This fixes a warning
about a 0 passed to cvmx_phys_to_ptr on systems without a CF interface,
such as the RSYS4GBE.
2012-10-31 04:23:36 +00:00
Juli Mallett
3631682eab Actually check board type rather than using a specialized octeon_is_simulation
function.
2012-10-30 06:36:14 +00:00
Juli Mallett
3fc2bc974b Remove oct_read64 and oct_write64 and use their equivalents from the Simple
Executive, which are used everywhere else in the Octeon port.  While here,
remove other unused things from octeon_pcmap_regs.h.
2012-10-30 06:29:17 +00:00
Juli Mallett
d1d2f57d4a Remove stale declarations. 2012-10-30 06:19:46 +00:00
Juli Mallett
684ba62e3f Speed feature tests and initialize helper configuration that some CPUs require. 2012-10-30 06:07:30 +00:00
Juli Mallett
0a5f2ecced Add a sysctl to change the LED display. 2012-10-29 07:06:23 +00:00
Juli Mallett
a1d1611d51 Wrap some long lines and display board serial numbers at boot. 2012-10-29 02:10:20 +00:00
Juli Mallett
1f51baaa92 Use Simple Executive LED display routines, which correctly use the LED base
address passed from the bootloader, rather than using a hard-coded value.

Make FreeBSD announce itself on the LED display similar to other kernels.

Remove uses of the previous LED routines, which were under-used and only used
in drivers for what seem like debugging purposes, despite those drivers being
widely-tested.

Remove several inlines for accessing memory that duplicate other functions
which are now used instead, as they are now entirely unused.
2012-10-29 00:51:53 +00:00