Commit Graph

68288 Commits

Author SHA1 Message Date
Marius Strobl
9888af9c4e Remove clkbrd(4) as a separate device and compile it solely based
on the presence of fhc(4) instead; we by far don't support all of
the functionality provide by the clock board but in general it's
an integral part of FireHose-based systems which shouldn't be
possible to omit.
2008-08-23 14:28:44 +00:00
Bjoern A. Zeeb
c06f087ccb Cache the cred locally in _syncache_add() while holding the locks, so
we can be sure that it's valid.
In case we abort early free it again else put it into the syncache.

We need the cred in the syncache to be able to restrict what will be
exportet by the sysctl helper function syncache_pcblist() (to netstat)
within jails.

PR:		kern/126493
Reviewed by:	rwatson (earlier versions)
MFC after:	3 days
2008-08-23 14:22:12 +00:00
Marius Strobl
3b7c344be4 - Add kbdmux(4); since sunkbd(4) was tought to emulate atkbd(4) like
ukbd(4) does and that emulation was enabled by default, all three of
  them work together with kbdmux(4) out of the box just fine.
- Fix some whitespace bugs.

MFC after:	3 days
2008-08-23 14:17:00 +00:00
Ed Schouten
ce570f82cc Remove unused tty_gone() checks inside ttyoutq_read_uio().
When my earlier MPSAFE TTY prototypes still implemented line
disciplines, we needed a mechanism to abort read()'s on PTY master
devices when inside the line discipline. Because this is no longer the
case, these checks have become unneeded.
2008-08-23 13:32:21 +00:00
John Baldwin
aa22af9438 If we are unable to obtain a frequency list from either ACPI or the static
tables, then attempt to build a simple list containing just the high and
low frequencies based on the current CPU frequency calculated during boot
and the contents of the MSR.

MFC after:	1 month
2008-08-23 12:53:42 +00:00
Antoine Brodin
2f2ea10a07 Remove unused variable nosleepwithlocks.
PR:		126609
Submitted by:	Mateusz Guzik
MFC after:	1 month
X-MFC:		to stable/7 only, this variable is still used in stable/6
2008-08-23 12:40:07 +00:00
John Baldwin
ad86a65e32 Adjust the handling the various timer frequencies when using the lapic
timer.  Previously, the various divisors were fixed which meant that while
it gave somewhat reasonable stathz, etc. at hz=1000, it went off the rails
with any other hz value.  With these changes, we now pick a lapic timer hz
based on the value of hz.  If hz is >= 1500, then the lapic timer runs at
hz.  If 1500 hz >= 750, we run the lapic timer at hz * 2.  If hz < 750, we
run at hz * 4.  We compute a divider at runtime to make stathz run as close
to 128 as we can since stathz really wants to be run at something close to
that frequency.  Profiling just runs on every clock tick.  So some examples:

With hz = 100, the lapic timer now runs at 400 instead of 2000.  stathz
will be 133, and profhz = 400.  With hz = 1000 (default), the lapic timer
is still at 2000 (as it is now), stathz is at 133 (as it is now), and
profhz will be 2000 (previously 666).

MFC after:	2 weeks
2008-08-23 12:35:43 +00:00
Bjoern A. Zeeb
bb580846dc Add an explicit comment why we NULLify the two variables.
Reviewed by:	rwatson
MFC after:	3 days
2008-08-23 12:27:18 +00:00
Warner Losh
195c96b714 Revert bogusly committed file. 2008-08-23 07:46:58 +00:00
Warner Losh
e1bd4ee68b Set devs to 0 in case device_get_children return an error. The right thing
to do here is nothing in that case...
2008-08-23 07:46:20 +00:00
Warner Losh
83bda63e3e Actually revert last... Upon closer inspection the code works in the
face of errors already...  A bit unorthodox, but none-the-less valid.
2008-08-23 07:43:03 +00:00
Warner Losh
b52943f026 Handle errors in device_get_children gracefully. 2008-08-23 07:41:21 +00:00
Warner Losh
da02572e7f Handle errors from device_get_chidlren.
Free child list when there's more children than we expected.
2008-08-23 07:38:00 +00:00
Warner Losh
696771ee0a Cope with errors from device_get_children(). These errors can happen
only in low memory situations, so the error fork of these fixes is
lightly tested, but they should do the least-wrong thing...

Submitted by:	Hans Petter Selasky
2008-08-23 07:23:52 +00:00
Warner Losh
de5d443f0f Cosmetic nit. 2008-08-23 07:18:30 +00:00
Warner Losh
e6b3a7a9c1 Add MIPS support.
Reviewed by:	jb@
2008-08-23 04:58:11 +00:00
Nathan Whitehorn
f620b5bf45 Allow the MD UMA allocator to use VM routines like kmem_*(). Existing code requires MD allocator to be available early in the boot process, before the VM is fully available. This defines a new VM define (UMA_MD_SMALL_ALLOC_NEEDS_VM) that allows an MD UMA small allocator to become available at the same time as the default UMA allocator.
Approved by:	marcel (mentor)
2008-08-23 01:35:36 +00:00
Warner Losh
1353dc1da5 Minor style nits. 2008-08-23 01:20:36 +00:00
Craig Rodrigues
d5bdb2f68d In nmount(), when we see the "force" option,
set the MNT_FORCE flag, but do not persist "force"
in the options list, since it is a command, not a persistent property
of a mount.

Similarly, when we see "reload", set MNT_RELOAD,
but delete "reload" from the options list.

MFC after:	1 week
2008-08-23 01:16:09 +00:00
Kip Macy
6205924afd Submit a band-aid for interrupt set up race.
MFC after:	1 month
2008-08-22 23:24:53 +00:00
Ed Schouten
0f0a7c27c5 Fix two small bugs in tcsetattr().
- According to POSIX, tcsetattr() must not fail when any of the bits in
  the structure are unsupported, but it must leave the unsupported flags
  alone.

- The CIGNORE flag (set by TCSASOFT, extension) was not cleared from
  c_cflag, which means using it would cause it to be applied during its
  entire lifespan. Eventually make sure we clear the flag.

I don't really like CIGNORE, but I think we must keep it alive right
now. With our new TTY layer, we don't actually need this mechanism,
because if you leave c_cflag, c_ispeed and c_ospeed alone, we won't make
a call into the device driver anyway.

Reported by:	naddy
Tested by:	naddy
2008-08-22 21:27:37 +00:00
Kip Macy
2d28c06b42 Don't try enumerating APICs when running on top of xen
(fixes boot on 64-bit dom0s)

MFC after:	1 month
2008-08-22 20:38:25 +00:00
Marius Strobl
898112a7dc cosmetic changes and style fixes 2008-08-22 20:28:19 +00:00
Marius Strobl
44e1fdfdcf Avoid misaligned access of struct frame.
MFC after:	3 days
2008-08-22 19:05:47 +00:00
John Baldwin
8fd40d8a9e Use bus_foo() rather than bus_space_foo() and remove bus handle and tag
from softc.
2008-08-22 18:43:19 +00:00
John Baldwin
19ab530d2a Use ppc_detach() for device_detach instead of ppc_attach().
MFC after:	1 week
2008-08-22 18:42:45 +00:00
John Baldwin
8aef71dd4f Whitespace fix. 2008-08-22 18:42:18 +00:00
John Baldwin
b43e2a6b83 Remove unused UNITOSOFTC() macro. 2008-08-22 18:42:05 +00:00
John Baldwin
7847a9daec A suspended thread can, in fact, be swapped out. Thus,
thread_unsuspend_one() needs to optionally wakeup the swapper.  Since we
hold the thread lock for that entire function, however, we have to push
that requirement up into the caller.

Found by:	rwatson
2008-08-22 16:15:58 +00:00
John Baldwin
814f26da8a Use |= rather than += when aggregrating requests to wakeup the swapper.
What we really want is an inclusive or of all the requests, and += can
in theory roll over to 0.
2008-08-22 16:14:23 +00:00
Yoshihiro Takahashi
ab61396de4 Back FreeBSD(98)'s copyright to 2003. 2008-08-22 12:31:21 +00:00
Ed Schouten
6137be4386 Fix pts(4) error codes when slave device is closed.
Unlike pre-MPSAFE TTY, the pts(4) driver always returned ENXIO when a
read() or write() was performed on a pseudo-terminal master device when
the slave device was not opened. The old implementation had different
semantics:

- When the slave device had not been opened yet, read() and write() just
  blocked.
- When the slave device had been closed, a read() call would return 0
  bytes length.
- When the slave device had been closed, a write() call would return
  EIO.

Change the new implementation to return 0 and EIO as well. We don't
implement the first rule, but I suspect this is not needed, because
routines like openpty() also open the slave device node. posix_openpt()
users also do similar things.

Reported by:	rink
Tested by:	rink
2008-08-22 10:40:21 +00:00
Pyun YongHyeon
861cf54c59 Add a new sysctl node 'dev.bfe.N.stats' that shows various MAC
counters for Rx/Tx statistics. Various counters in ifnet is also
updated with these hardware counters.

Tested by:	kib, Gleb Kurtsou gleb.kurtsou at gmail dot com
		Ulrich Spoerlein uspoerlein at gmail dot com
2008-08-22 06:46:55 +00:00
Ed Schouten
7dc843ca92 Prevent VSTART flooding when turning on software flow control.
It turned out we transmitted VSTART after each successful read on a TTY
when software flow control was turned on. This was because of a very
evil bug where we tested the TF_HIWAT_IN flag the other way around.

Reported by:	Christian Weisgerber <naddy mips inka de>
2008-08-22 05:15:52 +00:00
Pyun YongHyeon
2be30c0d91 Because bfe(4) knows interrupt mask value there is no need to read
interrupt mask register again. This saves one register access per
each interrupt.
Also don't try to process frames when driver is not running.

Tested by:	kib, Gleb Kurtsou gleb.kurtsou at gmail dot com
		Ulrich Spoerlein uspoerlein at gmail dot com
2008-08-22 04:52:21 +00:00
John Baldwin
d320e05ca5 Extend the support for PCI-e memory mapped configuration space access:
- Rename pciereg_cfgopen() to pcie_cfgregopen() and expose it to the
  rest of the kernel.  It now also accepts parameters via function
  arguments rather than global variables.
- Add a notion of minimum and maximum bus numbers and reject requests for
  an out of range bus.
- Add more range checks on slot/func/reg/bytes parameters to the cfg reg
  read/write routines.  Don't panic on any invalid parameters, just fail
  the request (writes do nothing, reads return -1).  This matches the
  behavior of the other cfg mechanisms.
- Port the memory mapped configuration space access to amd64.  On amd64
  we simply use the direct map (via pmap_mapdev()) for the memory mapped
  window.
- During acpi_attach() just after loading the ACPI tables, check for a
  MCFG table.  If it exists, call pciereg_cfgopen() on each subtable
  (memory mapped window).  For now we only support windows for domain 0
  that start with bus 0.  This removes the need for more chipset-specific
  quirks in the MD code.
- Remove the chipset-specific quirks for the Intel 5000P/V/Z chipsets
  since these machines should all have MCFG tables via ACPI.
- Updated pci_cfgregopen() to DTRT if ACPI had invoked pcie_cfgregopen()
  earlier.

MFC after:	2 weeks
2008-08-22 02:14:23 +00:00
Pyun YongHyeon
49bbfbc525 Remove bfe_link in softc and introduce two new flags to mark
link state and detach request.
While I'm here make sure established link is IFM_10_T or
IFM_100_TX as bfe(4) just supports 10/100Mbps media.

Tested by:	kib, Gleb Kurtsou gleb.kurtsou at gmail dot com
		Ulrich Spoerlein uspoerlein at gmail dot com
2008-08-22 01:06:25 +00:00
Andrew Thompson
858030c4a9 Add the Decision Computer Inc, PCCOM 8-port serial card.
PR:		kern/69730
Submitted by:	Darrin Smith
2008-08-22 00:13:17 +00:00
Andrew Thompson
46ce58c7f6 Add the VScom PCI-100L card.
PR:		kern/72352
Submitted by:	Thomas Nystrom
2008-08-22 00:12:08 +00:00
Andrew Thompson
0dc908e79c Add the Avlab Technology PCI IO 4S-850 4 port serial card.
PR:		kern/110797
Submitted by:	Trevor Roydhouse
2008-08-21 23:22:32 +00:00
David E. O'Brien
35c316caaf Add comments on NOARGS, NODEF, and NOPROTO. 2008-08-21 22:57:31 +00:00
Remko Lodder
ecf815ecf0 Add support for the Alcor Card Reader (9361)
PR:		124656
Submitted by:	Vincent Francois <vincentfrancois dot pro at gmail dot com>
Approved by:	imp (mentor, implicit)
MFC after:	1 week
2008-08-21 20:37:38 +00:00
Robert Watson
5060346d0b Remove comments and #ifdef notyet'd code relating to directly dispatching
the IP multicast input code from the output path; we don't allow
reentrance of the input path from the IP output path, it must use the
netisr due to potential lock recursion.

MFC after:	3 days
2008-08-21 17:24:49 +00:00
Andrew Gallatin
7b9f20ea8d Adapt mxge shims to detect phys contig jumbo frames
in RELENG_7

MFC after: 3 days
2008-08-21 16:35:34 +00:00
Ed Schouten
40572ab385 Properly lock proctree_lock before locking the process while accounting.
During the import of the MPSAFE TTY layer (r181905), I changed
acct_process() to lock proctree_lock instead of SESS_LOCK, because
s_ttyp is now locked using proctree_lock. One of the things I forgot,
was to lock it before we PROC_LOCK.

Commit this patch, written by kib@. To ensure we hold proctree_lock as
short as possible, obtaining `ac_tty' has now been made the first step
of filling `acct'.

Reported by:	Kevin <kevinxlinuz 163 com>
Solved by:	kib
2008-08-21 15:02:17 +00:00
Pyun YongHyeon
96ee09c546 o Sort includes and add <endian.h> to support endianness.
o Removed unneeded header files.
 o bus_dma(9) fix:
   - created parent tag with 1GB dma address limit with no
     alignment restrictions.
   - set 4096 alignment limit for Tx/Rx descriptor rings.
   - separate Rx buffer tag from Tx buffer tag such that Tx tag
     allows up-to 16 segments while Rx buffer tag only allows
     single segment.
   - it seems the controller has no alignment restrictions on Tx/Rx
     buffers. Remove ETHER_ALIGN alignment restriction in Tx/Rx
     buffers.
   - created a spare Rx dma map which would be used to cope with
     failure of loading a dma map.
   - make sure to load full Tx/Rx descriptor size for Tx/Rx
     descriptor dma maps, previously bfe(4) used to load single
     descriptor size for each descriptor rings. I have no idea how
     it could be run without problems.
   - don't blindly cast bus_addr_t type to 32bits in bfe_dma_map().
   - created bfe_dma_free() to free allocated dma memory/tags.
   - make sure to invoke bus_dmamap_sync(9) before/after processing
     descriptor rings/buffers. Because the hardware has severe dma
     address space limitation, bounce-buffers would be always used
     on systems with more than 1GB memory during
     descriptors/buffers access.
   - added Tx descriptor ring initialization function,
     bfe_list_tx_init().
   - moved producer/consumer index initialization to
     bfe_list_tx_init() and bfe_list_rx_init() from
     bfe_chip_reset().
   - added bfe_discard_buf() which will update loaded descriptors
     without unloading/reloading the dma map to speed up error
     recovery.
   - implemented Tx side bus_dmamap_load_mbuf_sg(9). The number of
     segments allowed was chosen to be 16 which should be enough for
     non-TSO capable hardwares. Setting SOF bit of Tx descriptor is
     done in the last to avoid potential race.
   - don't give up sending frames in bfe_start() until the hardware
     lacks free descriptors.
   - added XXX comment to second kick command and possible workaround.
   - implemented Rx side bus_dmamap_load_mbuf_sg(9).
   - removed bfe_dma_map_desc() as it's not needed anymore after
     the conversion to bus_dmamap_load_mbuf_sg(9).
   - added endianness support. With this change bfe(4) should work
     on any architectures that can create bounce buffers within 1GB
     address range.
   - add missing bus_dmamap_sync() in bfe_tx_eof()/bfe_rx_eof().
 o Use PCI_BAR instead of hardcoded value to set BARs.
   Simplified register access with bus_write_4(9)/bus_read_4(9) and
   removed bfe_btag, bfe_bhandle, bfe_vhandle in softc as it's not
   used anymore.
 o Reorder device detach logic such that bfe_detach() is also used
   for handling driver attach failure case.
 o Remove unnecessary KASSERT in bfe_detach().
 o Remove bfe_rx_cnt, bfe_up, bfe_vpd_prodname, bfe_vpd_readonly in
   softc.  It's not used at all.
 o Remove BFE_RX_RING_SIZE/BFE_RX_RING_SIZE/BFE_LINK_DOWN.

Tested by:	kib, Gleb Kurtsou gleb.kurtsou at gmail dot com
		Ulrich Spoerlein uspoerlein at gmail dot com
2008-08-21 04:21:53 +00:00
Kip Macy
4e683d7252 Fix boot time pmap_growkernel panic for case where vm is allocated >= 768M
MFC after:	1 month
2008-08-21 02:57:02 +00:00
Kip Macy
83b92f6e47 For reasons that I have not delved in to Xen 3.2 netback now does header splitting
so packets > 128 bytes are now split in to multiple buffer. This fixes netfront
to handle multiple buffers per rx packet.

MFC after:	1 month
2008-08-21 02:40:26 +00:00
Kip Macy
1c833c0802 fix typo in previous commit breaking bootup
pointed out by: Takahashi Yoshihiro nyan@
2008-08-20 21:27:48 +00:00
John Baldwin
9c0e9e988e The config space registers holding the upper 32-bits of the prefetchable
memory area's base and limit are optional.  The low 4-bits of the "low"
prefetchable registers indicates whether or not a 32-bit or 64-bit
region is supported.  The PCI-PCI driver had been assuming that all bridges
supported a 64-bit region (and thus the two upper 32-bit registers).  Fix
the driver to only use those registers if the low 4-bits of the "low"
registers indicate that a 64-bit region is supported.  The PCI-PCI bridge
in the XBox happens to be a bridge that only supports a 32-bit region.

Reported by:	rink
MFC after:	1 week
2008-08-20 18:29:59 +00:00