81327 Commits

Author SHA1 Message Date
Adrian Chadd
b2b029190f Merlin fix - first pdadc gain index is 0 - minpwr/2 .
Obtained from:	Linux ath9k
2011-03-10 06:06:26 +00:00
Adrian Chadd
c48e24c122 Migrate the regulatory database definitions into separate header files
to both make things clearer, and to make it easier to write userland
code which pulls in these definitions without needing to pull in the
rest of the HAL.

This stuff should be deprecated at some point in the future once
the net80211 regulatory domain support encapsulates all of the
defintions here.
2011-03-10 03:13:56 +00:00
Adrian Chadd
c50678682f Introduce the Merlin PWDCLKIND workaround.
This is something bus clock related from what I can gather. It is needed for
the AR9220 based Ubiquiti SR71-12 and SR71-15 Mini-PCI NICs.

(Note: those NICs don't work right now because of earlier changes to handle
power table offset correctly. That'll be resolved in a follow-up commit.)
2011-03-10 02:09:06 +00:00
Navdeep Parhar
d986a01abf Display holdoff timers and packet counts as a list of numbers.
MFC after:	1 week
2011-03-09 21:07:09 +00:00
Julian Elischer
a8066a9d3b Add a small change to the comment in the GENRIC config files that include udbp
Submitted by:	Chris Forgron, cforgeron at acsi dot ca
MFC after:	1 week
2011-03-09 17:15:11 +00:00
Jung-uk Kim
e09faf083f Remove custom interrupt dispatcher. This is a pointless micro-optimization
and it may cause problems if SS and SP are modified by real-mode code.

MFC after:	1 month
2011-03-09 16:16:38 +00:00
Nathan Whitehorn
797c37ee2b Fix whitespace nit. 2011-03-09 15:03:42 +00:00
Dmitry Chagin
a2cd91cf28 Indeed, remove bogus since r219405 check of the Linux ABI.
Pointed out:	jhb

MFC after:	2 Week
2011-03-09 05:59:33 +00:00
Adrian Chadd
beb4faf377 For chips that are full reset in ar5416ChipReset(), save and restore the TSF.
Merlin (ar9280) and later were full-reset if they're doing open-loop TX
power control but the TSF wasn't being saved/restored.

Add ar5212SetTsf64() which sets the 64 bit TSF appropriately.
2011-03-09 04:39:35 +00:00
Pyun YongHyeon
d9efae0351 Rearrange dc_tx_underrun() a bit to correctly set TX FIFO threshold
value. Controllers that always require "store and forward" mode(
Davicom and PNIC 82C168) have no way to recover from TX underrun
except completely reinitializing hardware. Previously only Davicom
was reinitialized and the TX FIFO threshold was changed not to use
"store and forward" mode after reinitialization since the default
FIFO threshold value was 0. This effectively disabled Davicom
controller's "store and forward" mode once it encountered TX
underruns. In theory, this can cause watchodg timeouts.

Intel 21143 controller requires TX MAC should be idle before
changing TX FIFO threshold. So driver tried to disable TX MAC and
checked whether it saw the idle state of TX MAC. Driver should
perform full hardware reinitialization on failing to enter to idle
state and it should not touch TX MAC again once it performed full
reinitialization.

While I'm here remove resetting TX FIFO threshold to 0 when
interface is put into down state. If driver ever encountered TX
underrun, it's likely to trigger TX underrun again whenever
interface is brought to up again. Keeping old/learned TX FIFO
threshold value shall reduce the chance of seeing TX underrns in
next run.
2011-03-08 19:49:16 +00:00
Dmitry Chagin
e3b36f9b6a Bump __FreeBSD_version for struct sysvec (sv_schedtail) changes. 2011-03-08 19:05:14 +00:00
Dmitry Chagin
e5d81ef1b5 Extend struct sysvec with new method sv_schedtail, which is used for an
explicit process at fork trampoline path instead of eventhadler(schedtail)
invocation for each child process.

Remove eventhandler(schedtail) code and change linux ABI to use newly added
sysvec method.

While here replace explicit comparing of module sysentvec structure with the
newly created process sysentvec to detect the linux ABI.

Discussed with:	kib

MFC after:	2 Week
2011-03-08 19:01:45 +00:00
Pawel Jakub Dawidek
cae905e5d0 Correct readdir over ZFS handling.
Reported by:	Pierre Beyssac <pb@fasterix.frmug.org>
MFC after:	1 month
2011-03-08 18:39:41 +00:00
Maxim Sobolev
20cc2dc42e Some linux distros put mount point into the ext2fs labels, such as '/', or
'/boot', which confuses the devfs code and can cause userland programs to
fail reading /dev/ext2fs directory with weird error code, such as any
program that uses pwlib.

Strip any leading slashes before feeding the label to the geom_label code.

Sponsored by:	Sippy Software, Inc.

MFC after:	1 week
2011-03-08 17:00:31 +00:00
John Baldwin
e84c2db137 When constructing a new cpuset, apply the parent cpuset's mask to the new
set's mask rather than the root mask.  This was causing the root mask to
be modified incorrectly.

Reviewed by:	jeff
MFC after:	1 week
2011-03-08 14:18:21 +00:00
Randall Stewart
f79aab1866 Tunes and fixes the new DC-CC to seem to hit the
right mix.  Still may need some tweaks but it
appears to almost not give away too much to an
RFC2581 flow, but can really minimize the amount of
buffers used in the net.

MFC after:	3 months
2011-03-08 11:58:25 +00:00
Konstantin Belousov
fd7032e1b3 Do not assert buffer lock in VFS_STRATEGY() when kernel already paniced.
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2011-03-08 11:50:59 +00:00
Hans Petter Selasky
56b57046f4 - Bugfix: Root HUBs do not support re-enumeration.
MFC after:	14 days
Approved by:	thompsa (mentor)
2011-03-08 08:02:39 +00:00
Adrian Chadd
2836e2ae73 Break out the ath regulatory domain structures into a separate header file. 2011-03-08 07:42:09 +00:00
Adrian Chadd
48c1d36479 Implement open-loop TX power control (OLC) for Merlin (AR9280) and
generally tidy up the TX power programming code.

Enforce that the TX power offset for Merlin is -5 dBm, rather than
any other value programmable in the EEPROM. This requires some
further code to be ported over from ath9k, so until that is done
and tested, fail to attach NICs whose TX power offset isn't -5
dBm.

This improves both legacy and HT transmission on my merlin board.
It allows for stable MCS TX up to MCS15.

Specifics:

* Refactor out a bunch of the TX power calibration code -
  setting/obtaining the power detector / gain boundaries,
  programming the PDADC
* Take the -5 dBm TX power offset into account on Merlin -
  "0" in the per-rate TX power register means -5 dBm, not
  0 dBm
* When doing OLC
* Enforce min (0) and max (AR5416_MAX_RATE_POWER) when fiddling
  with the TX power, to avoid the TX power values from wrapping
  when low.
* Implement the 1 dBm cck power offset when doing OLC
* Implement temperature compensation for 2.4ghz mode when doing OLC
* Implement an AR9280 specific TX power calibration routine which
  includes the OLC twiddles, leaving the earlier chipset path
  (AR5416, AR9160) alone

Whilst here, use these refactored routines for the AR9285 TX power
calibration/programming code and enforce correct overflow/underflow
handling when fiddling with TX power values.

Obtained from:	linux ath9k
2011-03-08 06:59:59 +00:00
Navdeep Parhar
9458619309 cxgbe shouldn't directly know of the UMA zones where network buffers
come from.

MFC after:	1 week
2011-03-08 03:04:07 +00:00
Konstantin Belousov
0714775845 Simplify uses of the web of pointers.
Reviewed by:	mckusick
MFC after:	1 week
2011-03-07 22:36:11 +00:00
John Baldwin
8587289fb8 The UFS dirhash code was attempting to update shared state in the dirhash
from multiple threads while holding a shared lock during a lookup operation.
This could result in incorrect ENOENT failures which could then be
permanently stored in the name cache.

Specifically, the dirhash code optimizes the case that a single thread is
walking a directory sequentially opening (or stat'ing) each file.  It uses
state in the dirhash structure to determine if a given lookup is using the
optimization.  If the optimization fails, it disables it and restarts the
lookup.  The problem arises when two threads both attempt the optimization
and fail.  The first thread will restart the loop, but the second thread
will incorrectly think that it did not try the optimization and will only
examine a subset of the directory entires in its hash chain.  As a result,
it may fail to find its directory entry and incorrectly fail with ENOENT.

To make this safe for use with shared locks, simplify the state stored in
the dirhash and move some of the state (the part that determines if the
current thread is trying the optimization) into a local variable.  One
result is that we will now try the optimization more often.  We still
update the value under the shared lock, but it is a single atomic store
similar to i_diroff that is stored in UFS directory i-nodes for the
non-dirhash lookup.

Reviewed by:	kib
MFC after:	1 week
2011-03-07 18:33:29 +00:00
Dmitry Chagin
372f5e052f Remove dead code.
MFC after:	1 Week
2011-03-07 08:12:07 +00:00
Konstantin Belousov
0ad4dd9a00 The execution of the shebang script requires putting interpreter path,
possible option and script path in the place of argv[0] supplied to
execve(2).  It is possible and valid for the substitution to be shorter
then the argv[0].

Avoid signed underflow in this case.

Submitted by:	Devon H. O'Dell <devon.odell gmail com>
PR:	kern/155321
MFC after:	1 week
2011-03-06 22:59:30 +00:00
Edward Tomasz Napierala
8a6f498522 Temporarily revert r219272; it breaks acl_is_trivial_np(3). 2011-03-06 20:12:09 +00:00
Alexander Motin
65c63cd22f Add some more IDs of HighPoint RocketRAID 64x. 2011-03-06 16:10:39 +00:00
Marius Strobl
25b31a9496 - With the addition of TLS support binutils started to make the addend
values for resolved symbols relative to relocbase instead of sections
  so detect this case and handle as appropriate, which allows using
  kernel modules linked with affected versions of binutils. Actually I
  think this is a bug in binutils but given that apparently nobody
  complained for nearly six years and powerpc has basically the same
  workaround I decided to put it in for the sparc64 kernel, too.
- Fix R_SPARC_HIX22 relocations. Apparently these are hardly ever used.
2011-03-06 15:20:11 +00:00
Marius Strobl
d374d11285 - Consistently abbreviate the names of the relocations.
- End sentences with dots.
- Fix whitespace.
2011-03-06 13:25:46 +00:00
Marius Strobl
20359f8025 Add missing bus_dmamap_sync() calls for the work DMA map.
MFC after:	2 weeks
2011-03-06 13:08:25 +00:00
Marius Strobl
c3719ff443 Add missing bus_dmamap_sync() calls for the work DMA map.
MFC after:	2 weeks
2011-03-06 13:06:41 +00:00
Marius Strobl
1ae5318fe8 - Allocate the DMA memory used for the work area as coherent as at least
the ataahci(4) and atamarvell(4) drivers share it between the host and
  the controller.
- Spell some zeros as BUS_DMA_WAITOK when used as bus_dmamem_alloc() flags.

MFC after:	2 weeks
2011-03-06 12:54:00 +00:00
Marius Strobl
6c5276c828 - Allocate the DMA memory shared between the host and the controller as
coherent.
- Add some missing bus_dmamap_sync() calls. This includes putting such
  calls before calling reply handlers instead of calling bus_dmamap_sync()
  for the request queue from individual reply handlers as these handlers
  generally read back updates by the controller.

Tested on amd64 and sparc64.

MFC after:	2 weeks
2011-03-06 12:48:15 +00:00
Pawel Jakub Dawidek
a96e8e86f0 Fix libzpool build.
MFC after:	1 month
2011-03-06 01:22:14 +00:00
Adrian Chadd
8823714276 Add an EEPROM op that extracts out the power table offset.
It defaults to -5 dBm for eeproms earlier than v21.

This apparently only applies to Merlin (AR9280) or later,
earlier 11n chipsets have a power table offset of 0.
All the code in ath9k which checks the power table offset
and takes it into account first ensures the chip is
Merlin or later.
2011-03-06 00:30:43 +00:00
Pawel Jakub Dawidek
2348f1110e Make renaming of a ZVOL, ZVOL's parent directory and ZVOL snapshot work.
Reported by:	avg
MFC after:	1 month
2011-03-05 22:31:03 +00:00
Pawel Jakub Dawidek
5bf0660559 Simplify zvol_remove_minors() a bit.
MFC after:	1 month
2011-03-05 22:24:31 +00:00
Adrian Chadd
f247e82033 Change HALDEBUG() to be a macro that conditionally calls the debug output routine.
The earlier way of doing debugging would evaluate the function parameters
before calling the HALDEBUG. In the case of detailed register debugging
would mean a -lot- of unneeded register IO and other stuff was going on.

This method evaluates the ath_hal_debug variable before the function
parameters are evaluated, drastically reducing the amount of overhead
enabling HAL debugging during compilation.
2011-03-05 21:20:18 +00:00
Dmitry Chagin
de60a5f38c Style(9) fix.
Fix indentation in comment, double ';' in variable declaration.

MFC after:	1 Week
2011-03-05 20:54:17 +00:00
Dmitry Chagin
22ec040605 Partially reworked r219042.
The reason for this is a bug at ktrops() where process dereferenced
without having a lock. This might cause a panic if ktrace was runned
with -p flag and the specified process exited between the dropping
a lock and writing sv_flags.

Since it is impossible to acquire sx lock while holding mtx switch
to use asynchronous enqueuerequest() instead of writerequest().

Rename ktr_getrequest_ne() to more understandable name [1].

Requested by:	jhb [1]

MFC after:	1 Week
2011-03-05 20:36:42 +00:00
Edward Tomasz Napierala
7123f4cd6f Export login class information via kinfo and make it possible to view
it using "ps -o class".
2011-03-05 14:41:49 +00:00
Edward Tomasz Napierala
e776709347 Regenerate. 2011-03-05 12:46:24 +00:00
Edward Tomasz Napierala
2bfc50bc4f Add two new system calls, setloginclass(2) and getloginclass(2). This makes
it possible for the kernel to track login class the process is assigned to,
which is required for RCTL.  This change also make setusercontext(3) call
setloginclass(2) and makes it possible to retrieve current login class using
id(1).

Reviewed by:	kib (as part of a larger patch)
2011-03-05 12:40:35 +00:00
Navdeep Parhar
99bb3c5399 Be sure to stay within the bounds of the mod_str array when displaying
the transceiver type.
2011-03-05 04:19:38 +00:00
Navdeep Parhar
83d58badea There is no need to hold an ingress queue's lock while processing its
descriptors.

MFC after:	1 week
2011-03-05 04:04:23 +00:00
Navdeep Parhar
e874ff7a8b Calculate how many descriptors can be reclaimed before calling
reclaim_tx_descs
2011-03-05 03:54:37 +00:00
Navdeep Parhar
7d29df5931 Tweaks for rx:
- everything related to LRO should be in #ifdef INET blocks
- reorder sge_iq's fields so that the most frequently used are all together
- pull all rx code into t4_intr_data directly
- let go of the ingress queue lock when passing up data
- refill the freelist only if it is short of at least 32 buffers
2011-03-05 03:42:03 +00:00
Navdeep Parhar
29ca78e104 Store the ifnet rather than the port_info in each txq and rxq struct.
MFC after:	1 week
2011-03-05 03:27:14 +00:00
Navdeep Parhar
aa2457e17c A txpkts work request should have a valid FID.
MFC after:	1 week
2011-03-05 03:18:56 +00:00
Navdeep Parhar
56c2cdaf9b Upgrade the firmware on the card automatically if a better version is
available.  Downgrade only for a major version mismatch.

MFC after:	1 week
2011-03-05 03:12:50 +00:00