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Commit Graph

87268 Commits

Author SHA1 Message Date
Isabell Long
82cecbea69 - Make ipfw's sched rules case insensitive, for user-friendliness.
- Add a note to the ipfw(8) man page about the rules no longer being
case sensitive.
- Fix some typos in the man page.

PR:		docs/164772
Reviewed by:	bz
Approved by:	gabor (doc mentor, src committer)
MFC after:	2 weeks
2012-07-03 08:42:48 +00:00
Kevin Lo
d6cc34a1ad Fix a typo 2012-07-03 08:03:07 +00:00
Adrian Chadd
b9ea0ceed7 Link in the new RX EDMA routines. 2012-07-03 07:01:12 +00:00
Adrian Chadd
f8cc9b09b0 Begin abstracting out the RX path in preparation for RX EDMA support.
The RX EDMA support requires a modified approach to the RX descriptor
handling.

Specifically:

* There's now two RX queues - high and low priority;
* The RX queues are implemented as FIFOs; they're now an array of pointers
  to buffers;
* .. and the RX buffer and descriptor are in the same "buffer", rather than
  being separate.

So to that end, this commit abstracts out most of the RX related functions
from the bulk of the driver.  Notably, the RX DMA/buffer allocation isn't
updated, primarily because I haven't yet fleshed out what it should look
like.

Whilst I'm here, create a set of matching but mostly unimplemented EDMA
stubs.

Tested:

  * AR9280, station mode

TODO:

  * Thorough AP and other mode testing for non-EDMA chips;
  * Figure out how to allocate RX buffers suitable for RX EDMA, including
    correctly setting the mbuf length to compensate for the RX descriptor
    and completion status area.
2012-07-03 06:59:12 +00:00
Navdeep Parhar
9a0b948f98 Fix inverted test that resulted in incorrect multicast hw programming. 2012-07-03 06:56:11 +00:00
David E. O'Brien
cd95660f26 Revert r222186 per instructions for FreeBSD 10.
(a 10-CURRENT share/mk is already required to build a 10-CURRENT kernel
 on 9-STABLE)
2012-07-03 05:01:00 +00:00
Marcel Moolenaar
7c45c9e4b5 Add a driver for the Freescale FCM module in the localbus controller.
This driver does not yet handle multiple chip selects properly.

Note that the NAND infrastructure does not perform full page
reads or writes, which means that this driver cannot make use
of the hardware ECC that is otherwise present.
2012-07-03 01:00:29 +00:00
Marcel Moolenaar
23fbc06bfc Support lbc interrupts:
o   Save and clear the LTESR register in the interrupt handler.
o   In lbc_read_reg(), return the saved LTESR register value if applicable
    (i.e. when the saved value is not invalid (read: ~0U)).
o   In lbc_write_reg(), clear the bits in the saved register when when it's
    written to and when the asved value is not invalid.
o   Also in lbc_write_reg(), the LTESR register is unlocked (in H/W) when
    bit 1 of LTEATR is cleared. We use this to invalidate our saved LTESR
    register value. Subsequent reads and write go to H/W directly.

While here:
o   In lbc_read_reg() & lbc_write_reg(), add some belts and suspenders to
    catch when register offsets are out of range.
o   In lbc_attach(), initialize completely and don't leave something left
    for lbc_banks_enable().
2012-07-03 00:06:14 +00:00
Marcel Moolenaar
120c7e2eb7 Simplify simplebus_setup_intr and don't call MD code directly. We can
(and have to) trust our parent to handle interrupt configuration.
2012-07-02 23:53:08 +00:00
Marcel Moolenaar
8c4c7216e6 Properly implement bus_setup_intr so that it handles the configuration
of interrupts of direct children. Have the bus_config_intr and
bus_teardown_intr methods implemented by bus_generic_config_intr and
bus_generic_teardown_intr (resp) as we don't need to do anything
special outselves.

This removes all the ``#ifdef $arch'' code that was there because powerpc
didn't have a proper nexus and people tend to copy and paste stuff.
2012-07-02 23:49:29 +00:00
Marcel Moolenaar
8609d8293d Properly implement the bus_config_intr, bus_setup_intr and bus_teardown_intr
methods so that MI drvers can depend on us doing the right thing instead
of having to go around us and call MD code directly. See the FDT code for
example (not for long though).
2012-07-02 23:41:56 +00:00
Doug Barton
1e8e2a9d7d Unfortunately the change in r237958 resulted in s/install/instclean/ due to
the aggressive pattern matching of the :C modifier. I tested build and
install in 2 phases, however with different solutions, resulting in the
breakage. Mea culpa.

The solution is to break out the all: target. This causes a few lines of
code duplication, but now the all: target works as it should, and the
other targets continue to work as they did before.

While I'm here, add a ===> header line to the start of each port build
to make it easier to find/more clear in the logs.
2012-07-02 22:14:58 +00:00
Marcel Moolenaar
f25e72cbb8 Remove device uart_z8530 and options GEOM_PART_APM from DEFAULTS and instead
add them to GENERIC and GENERIC64. They are applicable to Apple H/W and not
at all for Book-E platforms.
2012-07-02 21:25:24 +00:00
Marcel Moolenaar
8ab303584d Fix a typo that resulted in or-ing PTE_UW twice whrn PTE_SW was needed.
Note that setting the PTE_MODIFIED bit based on whether write is possible
is incorrect. We should set PTE_MODIFIED based on whether the access
is a write operation.
2012-07-02 21:21:12 +00:00
Marcel Moolenaar
863fcb91a4 Handle traps from the debugger. We need to catch them and re-enter
the debugger where they're being taken care of.
2012-07-02 21:18:09 +00:00
Marcel Moolenaar
816da2204a Invalidate any TLB1 entries we don't need. The firmware (e.g. U-Boot)
may have added entries that conflict with TLB0 entries.
2012-07-02 21:15:56 +00:00
Marcel Moolenaar
ab83b69996 Implement cpu_flush_dcache(). This allows us to optimize __syncicache()
for the common case in chich D-caches are coherent by virtue of busdma.
2012-07-02 21:11:01 +00:00
Konstantin Belousov
c5c1199c83 Extend the KPI to lock and unlock f_offset member of struct file. It
now fully encapsulates all accesses to f_offset, and extends f_offset
locking to other consumers that need it, in particular, to lseek() and
variants of getdirentries().

Ensure that on 32bit architectures f_offset, which is 64bit quantity,
always read and written under the mtxpool protection. This fixes
apparently easy to trigger race when parallel lseek()s or lseek() and
read/write could destroy file offset.

The already broken ABI emulations, including iBCS and SysV, are not
converted (yet).

Tested by:	pho
No objections from:	jhb
MFC after:    3 weeks
2012-07-02 21:01:03 +00:00
Navdeep Parhar
9f1dae79da Instruct the firmware not to provision resources for TCP offload if the
kernel is being built without TCP_OFFLOAD.  But never override
toecaps_allowed if it has been set manually.
2012-07-02 20:42:43 +00:00
Marcel Moolenaar
097f09bb98 There's no need to make filemon specific to i386 and amd64. All
LP64 architectures define elf64_freebsd_sysvec and all ILP32
architectures define elf32_freebsd_sysvec.
2012-07-02 20:36:26 +00:00
Alexander Motin
52ce0de418 Remove 14 not very useful characters " HDA CODEC PCM" from HDA pcm device
names to shorten them. PulseAudio reported to have problems with names
longer then 63 chars and at least in XMMS long names are inconvinient.

Reported by:	hselasky
MFC after:	3 days
2012-07-02 20:25:50 +00:00
Gleb Smirnoff
3df6468a2d Remove route caching from IP multicast routing code. There is no
reason to do that, and also, cached route never got unreferenced,
which meant a reference leak.

Reviewed by:	bms
2012-07-02 19:44:18 +00:00
Alexander Motin
f0d0cee0be Add IDs for some USB controllers I have around. Just a cosmetics.
MFC after:	3 days
2012-07-02 19:35:56 +00:00
Alexander Motin
3c461fd01b Restore GPIO config quirks handling, lost during last big refactoring.
Tested by:	hselasky
MFC after:	3 days
2012-07-02 18:35:08 +00:00
Sean Bruno
55fb7f3673 Revert r238004 as more review has come in and there is now a discussion
on how to best proceed.
2012-07-02 17:55:29 +00:00
Sean Bruno
7402aad3c7 Cosmetic display change of Cx states via cx_supported sysctl entries.
Adjust power_profile script to handle the new world order as well.

Some vendors are opting out of a C2 state and only defining C1 & C3.  This
leads the acpi_cpu display to indicate that the machine supports C1 & C2
which is caused by the (mis)use of the index of the cx_state array as the
ACPI_STATE_CX value.

e.g. the code was pretending that cx_state[i] would
always convert to i by subtracting 1.

cx_state[2] == ACPI_STATE_C3
cx_state[1] == ACPI_STATE_C2
cx_state[0] == ACPI_STATE_C1

however, on certain machines this would lead to
cx_state[1] == ACPI_STATE_C3
cx_state[0] == ACPI_STATE_C1

This didn't break anything but led to a display of:
 * dev.cpu.0.cx_supported: C1/1 C2/96

Instead of
 * dev.cpu.0.cx_supported: C1/1 C3/96

MFC after:	2 weeks
2012-07-02 16:57:13 +00:00
Michael Tuexen
a8775ad93d Move common code parts to sctp_common_input_processing().
MFC after: 3 days
2012-07-02 16:44:09 +00:00
Michael Tuexen
d8d544892c Remove dead code (on FreeBSD) as suggested by glebius@.
MFC after: 3 days
2012-07-02 16:40:11 +00:00
John Baldwin
687c94aac9 Honor db_pager_quit in 'show uma' and 'show malloc'.
MFC after:	1 month
2012-07-02 16:14:52 +00:00
Christian Brueffer
87e5ba0b54 Fix XEN build, broken in r237924.
Reported by:	gcooper
Pointy hat:	brueffer
2012-07-02 14:03:19 +00:00
Konstantin Belousov
9d232eec30 Do not override an error from uiomove() with (non-)error result from
bwrite().  VFS needs to know about EFAULT from uiomove() and does not
care much that partially filled block writeback after EFAULT was
successfull.  Early return without error causes short write to be
reported to usermode.

Reported and tested by:	andreast
MFC after:	3 weeks
2012-07-02 09:53:08 +00:00
Alexander Motin
461a98a279 Add acpi_asus_wmi(4) -- driver for random extras found on WMI-compatible
Asus laptops. It is alike to acpi_asus(4), but uses WMI interface instead
of separate ACPI device.

On Asus EeePC T101MT netbook it allows to handle hotkeys and on/off WLAN,
Bluetooth, LCD backlight, camera, cardreader and touchpad.

On Asus UX31A ultrabook it allows to handle hotkeys, on/off WLAN, Bluetooth,
Wireless LED, control keyboard backlight brightness, monitor temperature
and fan speed. LCD brightness control doesn't work now for unknown reason,
possibly requiring some video card initialization.

Sponsored by:	iXsystems, Inc.
2012-07-02 08:31:29 +00:00
Gleb Smirnoff
35d393bf63 - Call bus_generic_attach() at end of hdspe_attach().
- Use own devclass_t in DRIVER_MODULE().

This fixes operation of hdspe(4) when built as loadable module.

Submitted by:	Ruslan Bukin <br bsdpad.com>
2012-07-02 07:39:55 +00:00
Martin Matuska
a6a8d8377f Expose scrub and resilver tunables.
This allows the user to tune the priority trade-off between scrub/resilver
and other ZFS I/O.

MFC after:	2 weeks
Discussed with:	pjd
2012-07-02 07:27:14 +00:00
Doug Barton
cea039dae1 For the ports modules building code, clean WRKDIR before building. This is
important for those that use -DNO_CLEAN routinely, since it will prevent
installing stale stuff, and even more important when the port is upgraded
to a newer version. When the user doesn't use -DNO_CLEAN, this will create
an infinitesimal amount of extra work, but won't hurt anything.

This is necessary because the ports tree has flags that prevent the ususal
'update the build if newer source files exist' logic from doing what it
would do in the base.
2012-07-02 06:22:20 +00:00
Adrian Chadd
f9c15ba003 .. And fix another typo. Grr. 2012-07-02 06:07:46 +00:00
Adrian Chadd
5cc9e9aef6 Fix another typo. 2012-07-02 06:06:27 +00:00
Adrian Chadd
69bc6f4f0c Fix typo. 2012-07-02 06:05:25 +00:00
Adrian Chadd
577cd9a9b2 Bring over some further HAL capabilities from the Atheros HAL, as well
as an EDMA check function.

For the AR9003 and later NICs, different TX/RX DMA and descriptor handling
code will be conditional on the EDMA check.

Obtained from:	Qualcomm Atheros
2012-07-02 06:02:12 +00:00
Rui Paulo
9e731915eb Remove bogus __unused attribute from hrowpic_eoi(). 2012-07-01 19:07:45 +00:00
Gleb Smirnoff
d89862ac87 Make geom_mirror more friendly to SSDs. To properly support TRIM,
we need to pass BIO_DELETE requests down to providers that support
it. Also, we need to announce our support for BIO_DELETE to upper
consumer. This requires:

- In g_mirror_start() return true for "GEOM::candelete" request.
- In g_mirror_init_disk() probe below provider for "GEOM::candelete"
  attribute, and mark disk with a flag if it does support BIO_DELETE.
- In g_mirror_register_request() distribute BIO_DELETE requests only
  to those disks, that do support it.

Note that we announce "GEOM::candelete" as true unconditionally of
whether we have TRIM-capable media down below or not. This is made
intentionally, because upper consumer (usually UFS) requests the
attribite only once at mount time. And if user ever migrates his
mirror from HDDs to SSDs, then he/she would get TRIM working without
remounting filesystem.

Reviewed by:	pjd
2012-07-01 15:43:52 +00:00
Gleb Smirnoff
b0ae63ca25 In g_mirror_regular_request() upon successful delivery treat
BIO_DELETE requests same way as BIO_WRITE removing them from
queue. This fixes panic with BIO_DELETE operations on geom_mirror.

Reviewed by:	pjd
2012-07-01 15:30:43 +00:00
Christian Brueffer
593a9dc9b8 Replace an unreachable panic() in vm86_getptr (been there for 13 years) with
a KASSERT() behind the functions's only consumer.

Suggested by:	kib
Reviewed by:	kib
CID:		4494
Found with:	Coverity Prevent(tm)
MFC after:	2 weeks
2012-07-01 12:59:00 +00:00
Xin LI
309dca0171 tws(4) is interfaced with CAM so move it to the same section.
Reported by:	joel
MFC after:	3 days
2012-07-01 08:10:49 +00:00
Warner Losh
ba1227af3f Create a pseudo-lint kernel for all at91 SoCs. This kernel will not
currently boot, but will serve as a good linting.  make universe could
now be altered to skip building all the other at91 kernels...
2012-07-01 06:56:41 +00:00
Warner Losh
bb64064e5d Opt-in rather than opt-out of the SoC. We don't really support
running with multiple SoCs compiled in very well anyway, so this just
wastes space.  As more and more SoCs arrive in the tree, it is better
to edit one master file that builds them all than many board files.
2012-07-01 06:34:17 +00:00
Kenneth D. Merry
a77d787342 Now that the mps(4) driver is endian-safe, add it to the powerpc 32-bit
GENERIC config file.

MFC after:	3 days
Reqested by:	nwhitehorn
2012-07-01 05:32:26 +00:00
Warner Losh
a920522660 Use %j to match intmax_t. 2012-07-01 05:22:13 +00:00
Adrian Chadd
c9914f098f Add in some further changes from the AR9300 HAL:
* Add a new ANI variable, for AR9003 and later chips;
* The AR9003 and later series chips support two RX queues now, so start
  down the road of supporting that;
* Add some new TX queue types - uAPSD is possible on earlier chips,
  but PAPRD is relevant to AR9003 and later.

Obtained from:	Qualcomm Atheros, Linux ath9k
2012-07-01 05:14:24 +00:00
Adrian Chadd
64f3cab069 Add a check for dynamic OFDM/CCK channel types. 2012-07-01 04:25:49 +00:00
Adrian Chadd
df91468216 Migrate the MAC/BB hang structures out from ar5416_misc.h into the HAL.
The ar9300 HAL also uses these types, so it makes no sense to duplicate
them.
2012-07-01 03:15:18 +00:00
Adrian Chadd
7eee712c27 Bring over capabilities for the AR9300 and later HAL. 2012-07-01 02:44:36 +00:00
Adrian Chadd
85f6107b86 Add OS_MEMCMP(). 2012-07-01 02:37:04 +00:00
Adrian Chadd
020841a28e Fix the HAL debugging to only use one bit to mark a message as unmaskable.
Whilst I'm here, remove the duplication of the #define.
2012-07-01 02:34:32 +00:00
Alan Cox
2bde6e3518 Optimize reserve_pv_entries() using the popcnt instruction. 2012-06-30 20:25:12 +00:00
Andrew Thompson
61587a8403 Add the same check as vlan(4) where we ignore the ifnet departure event if the
interface is just being renamed.

PR:		kern/169557
Submitted by:	Mark Johnston
MFC after:	3 days
2012-06-30 19:09:02 +00:00
Konstantin Belousov
8046a47e76 Remove stray blank line.
MFC after:	3 days
2012-06-30 17:01:28 +00:00
Marius Strobl
5f42fa1793 Switch back to the 4BSD scheduler for now. There is some more or less
recent regression with ULE, causing processes to get stuck in getblk
as well as interrupt handler execution delays to rise above the command
timeout of mpt(4).

MFC after:	3 days
2012-06-30 14:55:36 +00:00
Marius Strobl
478f9295ef Exclude at91sam9x25 support, which just wastes space for Ethernut 5. 2012-06-30 14:48:52 +00:00
Navdeep Parhar
0a7049095f cxgb(4): IPv6 rx/tx hw checksum, IPv6 TSO and LRO too.
(Some parts already worked, this makes it complete).
2012-06-30 02:11:53 +00:00
Navdeep Parhar
932b1a5f1d - Assign (don't OR) the CSUM_XXX bits to csum_flags in the rx checksum code.
- Fix TSO/TSO4 mixup.
- Add IFCAP_LINKSTATE to the available/enabled capabilities.
2012-06-30 02:05:09 +00:00
Brooks Davis
9e81f117f9 MFP4 #212266
Fix compile on MIPS64.

Sponsored by:	DARPA, AFRL
2012-06-29 20:15:00 +00:00
Navdeep Parhar
a1ea9a8276 cxgbe(4): support for IPv6 TSO and LRO.
Submitted by:	bz (this is a modified version of that patch)
2012-06-29 19:51:06 +00:00
Joel Dahl
8f8a2520d7 Reduce diffs between GENERIC and GENERIC64. Also fix a few whitespace nits
while I'm here. No functional change.
2012-06-29 19:05:29 +00:00
Pedro F. Giffuni
9a9df34345 Bump dtrace_helper_actions_max from 32 to 128
Dave Pacheco from Joyent (and Dtrace.org) bumped the cap to 1024 but,
according to his blog, 128 is the recommended minimum.

For now bump it safely to 128 although we may have to bump it further
if there is demand in the future.

Reference:

http://www.illumos.org/issues/2558
http://dtrace.org/blogs/dap/2012/01/50/where-does-your-node-program-spend-its-time/
2012-06-29 18:49:14 +00:00
Alan Cox
92e2574577 In r237592, I forgot that pmap_enter() might already hold a PV list lock
at the point that it calls get_pv_entry().  Thus, pmap_enter()'s PV list
lock pointer must be passed to get_pv_entry() for those rare occasions
when get_pv_entry() calls reclaim_pv_chunk().

Update some related comments.
2012-06-29 18:15:56 +00:00
Kenneth D. Merry
82e4855cad Change the mps(4) driver to only scan a target if that is what is
needed instead of scanning the full bus every time.

Submitted by:	mav
Discussed with:	Sreekanth Reddy <Sreekanth.Reddy@lsi.com>
MFC after:	3 days
2012-06-29 17:00:52 +00:00
Navdeep Parhar
9600bf00bb cxgbe(4): support for IPv6 hardware checksumming (rx and tx). 2012-06-29 16:50:52 +00:00
John Baldwin
304050dde0 Hold GIF_LOCK() for almost all of gif_start(). It is required to be held
across in_gif_output() and in6_gif_output() anyway, and once it is held
across those it might as well be held for the entire loop.  This simplifies
the code and removes the need for the custom IFF_GIF_WANTED flag (which
belonged in the softc and not as an IFF_* flag anyway).

Tested by:	Vincent Hoffman  vince  unsane co uk
2012-06-29 15:21:34 +00:00
Andriy Gapon
f724c6a137 dtrace instruction decoder: add 0x0f 0x1f NOP opcode support
According to the AMD manual the whole range from 0x09 to 0x1f are NOPs.
Intel manual mentions only 0x1f.  Use only Intel one for now, it seems
to be the one actually generated by compilers.
Use gdb mnemonic for the operation: "nopw".

[1] AMD64 Architecture Programmer's Manual
    Volume 3: General-Purpose and System Instructions
[2] Software Optimization Guide for AMD Family 10h Processors
[3] Intel(R) 64 and IA-32 Architectures Software Developer’s Manual
    Volume 2 (2A, 2B & 2C): Instruction Set Reference, A-Z

Tested by:	Fabian Keil <freebsd-listen@fabiankeil.de> (earlier version)
MFC after:	3 days
2012-06-29 07:35:37 +00:00
Warner Losh
c2353ed4c0 Tweak comment. 2012-06-29 06:06:19 +00:00
Warner Losh
5cb96b1dbd Add PIOD, make at91sam9x25 a standard SoC, tweak some comments. 2012-06-29 06:05:44 +00:00
Warner Losh
65b1f169a4 Ooops, replaced the at91sam9g20 interrupt list with the at91sam9x25 ones. 2012-06-29 04:49:50 +00:00
Warner Losh
007c69d506 Initital support for AT91SAM9X25 SoC and the SAM9X25-EK evaluation
board.  Much work remains.
2012-06-29 04:18:52 +00:00
Warner Losh
53edbb2cfe All xscale ports are armeb, so mark it here. This should reduce universe
times a little.
2012-06-29 04:13:31 +00:00
Rui Paulo
0381f4905f The `end' symbol doesn't match the end of the kernel image because it's
relative to the start address (unless the start address is 0, which is
not the case).
This is currently not a problem because all powerpc architectures are
using loader(8) which passes metadata to the kernel including the
correct `endkernel' address.  If we don't use loader(8), register 4
and 5 will have the size of the kernel ELF file, not its end address.
We fix that simply by adding `kernel_text' to `end' to compute
`endkernel'.

Discussed with:	nathanw
2012-06-29 01:55:20 +00:00
Bruce M Simpson
df7e35725b Kick the current-state report timer when a V1 group report would
be triggered.

Submitted by:	rpaulo@
MFC after:	3 days
2012-06-28 23:48:40 +00:00
Bruce M Simpson
b7d882304b Fix a typo in MLD query exponent processing.
Submitted by:	rpaulo@
MFC after:	3 days
2012-06-28 23:45:37 +00:00
Bruce M Simpson
289ca95209 In MLDv2 general query processing, do not enforce the strict check
on query origins.

Submitted by:	Gu Yong
MFC after:	3 days
2012-06-28 23:44:47 +00:00
Alan Cox
6c67613030 Avoid some unnecessary PV list locking in pmap_enter(). 2012-06-28 22:03:59 +00:00
Kenneth D. Merry
e36042794f Now that the mps(4) driver is endian-safe, add it to the powerpc and
sparc64 GENERIC config files.

MFC after:	3 days
2012-06-28 20:48:24 +00:00
Kenneth D. Merry
beedaee94a Add a loader tunable, kern.cam.ctl.disable, that will disable
loading CTL.  This may be useful in very low memory installations.

MFC after:	3 days
2012-06-28 19:39:30 +00:00
Alexander Motin
d7f7144a73 Fix millisecond to ticks conversion in drm_msleep().
On systems with HZ=100 it caused Intel eDP video output initialization
(and Xorg startup) to take several minutes instead of several seconds.

Reviewed by:	kib
MFC after:	3 days
2012-06-28 17:15:16 +00:00
Michael Tuexen
b1754ad17b Pass the src and dst address of a received packet explicitly around.
MFC after: 3 days
2012-06-28 16:01:08 +00:00
Warner Losh
acdb2ef475 Turns out the emulators still need/want a_magic, so put it back here. 2012-06-28 07:37:46 +00:00
Warner Losh
f4dc9a4015 Remove an old hack I noticed years ago, but never committed. 2012-06-28 07:33:43 +00:00
Warner Losh
cfe4885cf8 Document some MP assumptions for sio.
Submitted by:	bde (years ago)
2012-06-28 07:28:39 +00:00
Warner Losh
96eb909a84 Simplify resource activation a bit. 2012-06-28 07:26:44 +00:00
Warner Losh
6e45677ab7 Add a sysctl to set the cdrom timeout. Data recovery operations from
a CD or DVD drive with a damaged disc often benefit from a shorter
timeout.  Also, when retries are set to 0, an application is expecting
errors and recovering them so do not print the error into the log.
The number of expected errors can literally be in the hundreds of
thousands which significantly slows data recovery.

Reviewed by:	ken@ (but quite some time ago).
2012-06-28 07:01:48 +00:00
Warner Losh
f3140a8923 octeon_uart_class was removed some time ago everywhere but here. 2012-06-28 06:49:04 +00:00
Alan Cox
23e59dfa8d Optimize pmap_pv_demote_pde(). 2012-06-28 05:42:04 +00:00
Kenneth D. Merry
be4aa869c1 Bring in LSI's latest mps(4) 6Gb SAS and WarpDrive driver, version
14.00.00.01-fbsd.

Their description of the changes is as follows:

1.	Copyright contents has been changed in all respective .c
	and .h files

2.	Support for WRITE12 and READ12 for direct-io (warpdrive only)
	has been added.

3.      Driver has added checks to see if Drive has READ_CAP_16
	support before sending it down to the device.
	If SPC3_SID_PROTECT flag is set in the inquiry data, the
	device supports protection information, and must support
	the 16 byte read capacity command, otherwise continue without
	sending read cap 16. This will optimize driver performance,
	since it will not send READ_CAP_16 to the drive which does
	not have support of READ_CAP_16.

4.      With new approach, "MPTIOCTL_RESET_ADAPTER" IOCTL will not
	use DELAY() which is busy loop implementation.
	It will use <msleep> (Better way to sleep without busy
	loop). Also from the HBA reset code path and some other
	places, DELAY() is replaced with msleep() or "pause()",
	which is based on sleep/wakeup style calls.  Driver use
	msleep()/pause() instead of DELAY based on CAN_SLEEP/NO_SLEEP
	flags to avoid busy loop which is not required all the
	time.e.a

	a. While driver is getting loaded, driver calls most of the
	   commands with NO_SLEEP.
	b. When Driver is functional and it needs Reinit of HBA,
	   CAN_SLEEP flag is used.

5.	<mpslsi> driver is not Endian safe. It will not work on Big
	Endian machines	like Sparc and PowerPC platforms because it
	assumes it is running on a Little Endian machine.

	Driver code is modified such way that it does not assume CPU
	arch is Little Endian.
	a. All places where Driver interacts from HBA to Host, it
	   converts Little Endian format to CPU format.
	b. All places where Driver interacts from Host to HBA, it
	   converts CPU format to Little Endian.

6.	Findout memory leaks in FreeBSD Driver and resolve those,
	such as memory leak in targ's luns creation/deletion.
	Also added additional checks to see memory allocation
	success/fail.

7.	Add loginfo prints as debug message, i.e. When FW sends any
	loginfo, Driver should print those as debug message.
	This will help for debugging purpose.

8.	There is possibility to get config request timeout. Current
	driver is able to detect config request timetout, but it does
	not do anything on config_request timeout.  Driver should
	call mps_reinit() if any request_poll (which is called as
	part of config_request) is time out.

9.	cdb length check is required for 32 byte CDB. Add correct mpi
	control value for 32 bit CDB as below while submitting SCSI IO
	Request to controller.
	mpi_control |= 4 << MPI2_SCSIIO_CONTROL_ADDCDBLEN_SHIFT;

10.	Check the actual status of Message unit reset
	(mps_message_unit_reset).Previously FreeBSD Driver just writes
	MPI2_FUNCTION_IOC_MESSAGE_UNIT_RESET and never check the ack
	(it just wait for 50 millisecond).  So, Driver now check the
	status of "MPI2_FUNCTION_IOC_MESSAGE_UNIT_RESET" after writing
	it to the FW.

	Now it also checking for whether doorbell ack uses msleep with
	proper sleep flags, instead of <DELAY>.

11.	Previously CAM does not detect Multi-Lun Devices. In order to
	detect Multi-Lun Devices by CAM the driver needs following change
	set:
	a. There is "max_lun" field which Driver need to set based on
	   hw/fw support. Currently LSI released driver does not set
	   this field.
	b. Default of "max_lun" should not be 0 in OS, but it is
	   currently set to 0 in CAM layer.
	c. Export max_lun capacity to 255

12.	Driver will not reset target info after port enable complete and
	also do Device removal when Device remove from FW.  The detail
	description is as follows
	a. When Driver receive WD PD add events, it will add all
	   information in driver local data structure.
	b. Only for WD, we have below checks after port enable
	   completes, where driver clear off all information retrieved
	   at #1.
	if ((sc->WD_available &&
             (sc->WD_hide_expose == MPS_WD_HIDE_ALWAYS)) ||
             (sc->WD_valid_config && (sc->WD_hide_expose ==
                            MPS_WD_HIDE_IF_VOLUME)) {
		  // clear off target data structure.
	}
	It is mainly not to attach PDs to OS.

	FreeBSD does bus rescan as older Parallel scsi style. So Driver
	needs to handle which Drive is visible to OS.  That is a reason
	we have to clear off targ information for PDs.

	Again, above logic was implemented long time ago. Similar concept
	we have for non-wd also. For that, LSI have introduced different
	logic to hide PDs.

	Eventually, because of above gap, when Phy goes offline, we
	observe below failure. That is what Driver is not doing complete
	removal of device with FW. (which was pointed by Scott)
	Apr  5 02:39:24 Freebsd7 kernel: mpslsi0: mpssas_prepare_remove
	Apr  5 02:39:24 Freebsd7 kernel: mpssas_prepare_remove 497 : invalid handle 0xe

	Now Driver will not reset target info after port enable complete
	and also will do Device removal when Device remove from FW.

13.	Returning "CAM_SEL_TIMEOUT" instead of "CAM_TID_INVALID"
	error code on request to the Target IDs that have no devices
	conected at that moment.  As if "CAM_TID_INVALID" error code
	is returned to the CAM Layaer then it results in a huge chain
	of errors in verbose kernel messages on boot and every
	hot-plug event.

Submitted by:	Sreekanth Reddy <Sreekanth.Reddy@lsi.com>
MFC after:	3 days
2012-06-28 03:48:54 +00:00
Kenneth D. Merry
905cb85d78 Fix a typo in a panic() call.
PR:		kern/169497
Submitted by:	Steven Hartland <steven.hartland@multiplay.co.uk>
MFC after:	3 days
2012-06-28 03:36:13 +00:00
Marius Strobl
a6c8226584 For subtractively decoding bridges, don't try to grow windows but pass
the request up the tree in order to be on the safe side. Growing windows
in this case would mean to switch resources to positive decoding and
it's unclear how to correctly handle this. At least with ALi/ULi M5249
PCI-PCI bridges, this also just doesn't work out of the box.

Reviewed by:	jhb
MFC after:	3 days
2012-06-27 22:17:52 +00:00
Jung-uk Kim
3e2c973410 MFV: r237650
Do not malloc(9) while holding a spin lock, to avoid panic.

Reported by:	kib (and many others)
Tested by:	kib (and many others)
2012-06-27 16:15:13 +00:00
Bernhard Schmidt
2289f9b47e Add new firmware for the g2a (6205) and g2b (623x) devices.
MFC after:	3 days
2012-06-27 16:14:28 +00:00
Bernhard Schmidt
7a7a0b8301 We need to defer passing the DELBA request to the firmware until the aggr
queue is empty or the firmware will go nuts.

PR:		kern/167806
Tested by:	osa@, Brandon Gooch (earlier version),
		    Bojan Petrovic (earlier version)
MFC after:	3 days
2012-06-27 16:07:01 +00:00
Kenneth D. Merry
c76a6fe732 In g_disk_providergone(), don't continue if the softc is NULL. This may be
the case if we've already gone through g_disk_destroy().

Reported by:	Michael Butler <imb@protected-networks.net>
MFC after:	3 days
2012-06-27 16:05:09 +00:00
Bernhard Schmidt
547ea37a96 Fix a TX aggregation issue, if after the last compressed BA notification
the TX queue is empty, there won't be a TX done notification, effectly
resulting in an mbuf leak. The correct way to handle this is to free
up mbufs on both BA and TX done notifications up to the last sent seqno.

Tested by:	osa@
MFC after:	3 days
2012-06-27 15:55:34 +00:00
Gabor Kovesdan
f4ae3eee14 - Bump __FreeBSD_version: default sort is BSD sort 2012-06-27 06:08:02 +00:00
Adrian Chadd
df5ea0d85b Fix a subtle corner case surrounding the handling of OFDM restart along
with AMPDU aggregate delimiters.

If there's an OFDM restart during an aggregate, the hardware ACKs
the previous frame, but communicates the RXed frame to the hardware
as having had CRC delimiter error + OFDM_RESTART phy error.
The frame however didn't have a CRC error and since the hardware ACKed
the aggregate to the sender, it thinks the frame was received.

Since I have no idea how often this occurs in the real world, add a
debug statement so trigger whenever this occurs.  I'd appreciate an
email if someone finds this particular situation is triggered.
2012-06-27 05:23:33 +00:00
Pedro F. Giffuni
675cf9154b Bring llquantize support into Dtrace.
Bryan Cantrill implemented the equivalent of semi-log graph
paper for Dtrace so llquantize will use one logarithmic and
one linear scale.

Special thanks to Mark Peek for providing fix to an
assertion and to Fabian Keill for testing the port.

Illumos Revision:	13355:15b74a2a9a9d

Reference:
https://www.illumos/issues/905

Obtained from:	Illumos
Tested by:	Fabian Keill, mp
MFC after:	4 days
2012-06-27 04:39:30 +00:00
Alan Cox
e30df26e7b Add new pmap layer locks to the predefined lock order. Change the names
of a few existing VM locks to follow a consistent naming scheme.
2012-06-27 03:45:25 +00:00
Adrian Chadd
37003d2fc3 Bring over some new typedefs as part of the AR9300 HAL import. 2012-06-27 03:24:27 +00:00
Adrian Chadd
a6f801b608 Remove duplicate entries. 2012-06-27 03:00:29 +00:00
Adrian Chadd
6479ef780d Bring over the initial 802.11n bluetooth coexistence support code.
The Linux ath9k btcoex code is based off of this code.

Note this doesn't actually implement functional btcoex; there's some
driver glue and a whole lot of verification that is required.

On the other hand, I do have the AR9285+BT and AR9287+BT NICs which
this code supports..

Obtained from:	Qualcomm Atheros, Linux ath9k
2012-06-26 22:16:53 +00:00
Takanori Watanabe
ab25c078af Add nand core module and module dependency information.
Reviewed by:gber
2012-06-26 18:08:03 +00:00
Alan Cox
5b5b0ef34d Introduce RELEASE_PV_LIST_LOCK(). 2012-06-26 16:45:18 +00:00
Kenneth D. Merry
b79dc8a8da Fix an issue that caused the kernel to panic inside CTL when trying
to attach to target capable HBAs that implement the old immediate
notify (XPT_IMMED_NOTIFY) and notify acknowledge (XPT_NOTIFY_ACK)
CCBs.  The new API has been in place since SVN change 196008 in
2009.

The solution is two-fold:  fix CTL to handle the responses from the
HBAs, and convert the HBA drivers in question to use the new API.

These drivers have not been tested with CTL, so how well they will
interoperate with CTL is unknown.

scsi_target.c:	Update the userland target example code to use the
		new immediate notify API.

scsi_ctl.c:	Detect when an immediate notify CCB is returned
		with CAM_REQ_INVALID or CAM_PROVIDE_FAIL status,
		and just free it.

		Fix a duplicate assignment.

aic79xx.c,
aic79xx_osm.c:	Update the aic79xx driver to use the new API.
		Target mode is not enabled on for this driver, so
		the changes will have no practical effect.

aic7xxx.c,
aic7xxx_osm.c:	Update the aic7xxx driver to use the new API.

sbp_targ.c:	Update the firewire target code to work with the
		new API.

mpt_cam.c:	Update the mpt(4) driver to work with the new API.
		Target mode is only enabled for Fibre Channel
		mpt(4) devices.

MFC after:	3 days
2012-06-26 14:51:35 +00:00
Adrian Chadd
8405fe8662 Make sure the BAR TX session pause is correctly unpaused when a node
is reassociating.

PR:		kern/169432
2012-06-26 07:56:15 +00:00
Alan Cox
0d646df757 Add PV list locking to pmap_enter(). Its execution is no longer serialized
by the pvh global lock.

Add a needed atomic operation to pmap_object_init_pt().
2012-06-26 06:02:43 +00:00
Navdeep Parhar
2cd9f0711d Allow cxgbe(4) running within a VM to attach to its devices that have been
exported via PCI passthrough.

- Do not check for a specific physical function (PF) before claiming a device.
  Different PFs have different device-ids so this check is redundant anyway.

- Obtain the PF# from the WHOAMI register instead of pci_get_function().

- Setup the memory windows using the real BAR0 address, not what the VM says it
  is.

Obtained from:	Chelsio Communications
2012-06-26 00:34:34 +00:00
Xin LI
5b8f1a8676 Fix a LOR acquiring the if_afdata lock while holding an rtentry lock.
Possibly do some entra work in case we would not get into the
ifa0 != NULL paths later as we already do for the mltaddr before.

XXX We should possibly error in case in6_setscope fails.

Reference: http://lists.freebsd.org/pipermail/freebsd-net/2011-September/029829.html

Submitted by:	bz
MFC after:	1 week
2012-06-25 20:56:32 +00:00
Michael Tuexen
6dc5aabcb7 Unify sctp_input() and sctp6_input().
MFC after: 3 days
2012-06-25 19:13:43 +00:00
Oleksandr Tymoshenko
8696e0cb5b Handle case when result of pmap_pte is NULL. This issue was uncovered
by r237367
2012-06-25 17:50:11 +00:00
Michael Tuexen
39803b8c58 Whitespace cleanup.
MFC after: 3 days
2012-06-25 17:15:09 +00:00
Navdeep Parhar
40a29cf009 Fix clang warning when compiling iw_cxgb.
Reported by:	rene, dim
2012-06-25 16:52:27 +00:00
Monthadar Al Jaberi
d566999aa5 Mesh mode, potential garbage in QoS subfield.
* qos[1] subfield is never assigned a value before this statement.
qos[1] can potentially be OR:ed with garbage. Make it an assignment instead;
* Remove brackets around if statement;

Approved by: adrian
2012-06-25 11:52:26 +00:00
Ulrich Spörlein
5097809e5b Fix 'make depend'. 2012-06-25 09:46:06 +00:00
Alan Cox
aaf3bc56fd Add PV chunk and list locking to pmap_change_wiring(), pmap_protect(), and
pmap_remove().  The execution of these functions is no longer serialized
by the pvh global lock.

Make some stylistic changes to the affected code for the sake of
consistency with related code elsewhere in the pmap.
2012-06-25 07:13:25 +00:00
Kevin Lo
de8925a261 Fix size of the bcopy when extracting ethernet address
Obtained from:	DragonFly
2012-06-25 05:47:12 +00:00
Kevin Lo
c61325d009 Correct sizeof usage
Obtained from:	DragonFly
2012-06-25 05:41:16 +00:00
Kenneth D. Merry
365e076ed2 Consume spare fields for the providergone pointers added to the g_class and
g_geom structures in change 237518.  The original change would have broken
the ABI.

Suggested by:	ae
MFC after:	4 days
2012-06-25 04:26:10 +00:00
Matt Jacob
d42f4bedba Unbreak register tests for parallel SCSI.
You can't overwrite registers 7 and 8.
MFC after:	3 days
2012-06-25 03:06:29 +00:00
Michael Tuexen
20cc2188f3 Pass the packet length explicitly around.
MFC after: 3 days
2012-06-24 23:12:24 +00:00
Michael Tuexen
329204ff00 Remove redundant check.
MFC after: 3 days
2012-06-24 22:22:44 +00:00
Michael Tuexen
f938425253 Do packet logging in a consistent way.
MFC after: 3 days
2012-06-24 21:25:54 +00:00
Matt Jacob
9e7d423d23 Clean up multi-id mode so it's driven by the f/w loaded,
not by some hint setting.  Do more preparations for FC-Tape.
Clean up resource counting for 24XX or later chipsets so
we find out after EXEC_FIRMWARE what is actually supported.
Set target mode exchange count based upon whether or not
we are supporting simultaneous target/initiator mode. Clean
up some old (pre-24XX) xfwoption and zfwoption issues.

Sponsored by:	Spectralogic
MFC after:	3 days
2012-06-24 17:30:54 +00:00
Adrian Chadd
c312fb4adc In a complete lack of foresight on my part, my previous commit broke
the assumption that ath_softc doesn't change size based on build time
configuration.

I picked up on this because suddenly radar stuff didn't work; and
although the ath_dfs code was setting sc_dodfs=1, the main ath driver
saw sc_dodfs=0.

So for now, include opt_ath.h in driver source files.  This seems like
the sane thing to do anyway.

I'll have to do a pass over the code at some later stage and turn
the radiotap TX/RX structs into malloc'ed memory, rather than in-line
inside of ath_softc.  I'd rather like to keep ath_softc the same
layout regardless of configuration parameters.

Pointy hat to: 	adrian
2012-06-24 08:47:19 +00:00
Adrian Chadd
f8aa9fd500 Shuffle these initialisations to where they should be. 2012-06-24 08:28:06 +00:00
Adrian Chadd
d77363ad5b Change the ath_dfs_process_phy_err() method to take an mbuf rather than
a buffer pointer.

For large radar pulses, the AR9130 and later will return a series of
FFT results for software processing.  These can overflow a single 2KB
buffer on longer pulses.  This would result in undefined buffer behaviour.
2012-06-24 08:09:06 +00:00
Adrian Chadd
e1b5ab97e8 Introduce an optional ath(4) radiotap vendor extension.
This includes a few new fields in each RXed frame:

* per chain RX RSSI (ctl and ext);
* current RX chainmask;
* EVM information;
* PHY error code;
* basic RX status bits (CRC error, PHY error, etc).

This is primarily to allow me to do some userland PHY error processing
for radar and spectral scan data.  However since EVM and per-chain RSSI
is provided, others may find it useful for a variety of tasks.

The default is to not compile in the radiotap vendor extensions, primarily
because tcpdump doesn't seem to handle the particular vendor extension
layout I'm using, and I'd rather not break existing code out there that
may be (badly) parsing the radiotap data.

Instead, add the option 'ATH_ENABLE_RADIOTAP_VENDOR_EXT' to your kernel
configuration file to enable these options.
2012-06-24 07:01:49 +00:00
Adrian Chadd
a183985e6f On second thought, let's just set both CRC and PHY errors together on
frames that have it and let the upper layer sort it out.

PR:		kern/169362
2012-06-24 06:37:28 +00:00
Adrian Chadd
efb44bb8ca Sometimes the AR5416 sends back radar PHY errors with both the PHY error
and the CRC error bits set.  The radar payload is correct.

When this happens, the stack doesn't see them PHY error frames and
isn't interpreted as a PHY error.  So, no radar detection and no radiotap
PHY error handling.

Now, this may introduce some weird issues if the MAC sends up some other
combination of CRC error + PHY error frames; this commit would break that
and mark them as PHY errors instead of CRC errors.

I may tinker with this a little more to pass radar/early radar/spectral
frames up as PHY errors if the CRC bit is set, to restore the previous
behaviour (where if CRC is set on a PHY error frame, it's marked as a CRC
error rather than PHY error.)

Tested on:	AR5416, over the air, to a USRP N200 which is generating a
		large number of a variety of radar pulses.
TODO:		Test on AR9130, AR9160, AR9280 (and maybe radar pulses on
		2GHz on AR9285/AR9287.)

PR:		kern/169362
2012-06-24 05:59:32 +00:00
Kenneth D. Merry
c3fb2891f0 Fix a bug which causes a panic in daopen(). The panic is caused by
a da(4) instance going away while GEOM is still probing it.

In this case, the GEOM disk class instance has been created by
disk_create(), and the taste of the disk is queued in the GEOM
event queue.

While that event is queued, the da(4) instance goes away.  When the
open call comes into the da(4) driver, it dereferences the freed
(but non-NULL) peripheral pointer provided by GEOM, which results
in a panic.

The solution is to add a callback to the GEOM disk code that is
called when all of its resources are cleaned up.  This is
implemented inside GEOM by adding an optional callback that is
called when all consumers have detached from a provider, and the
provider is about to be deleted.

scsi_cd.c,
scsi_da.c:	In the register routine for the cd(4) and da(4)
		routines, acquire a reference to the CAM peripheral
		instance just before we call disk_create().

		Use the new GEOM disk d_gone() callback to register
		a callback (dadiskgonecb()/cddiskgonecb()) that
		decrements the peripheral reference count once GEOM
		has finished cleaning up its resources.

		In the cd(4) driver, clean up open and close
		behavior slightly.  GEOM makes sure we only get one
		open() and one close call, so there is no need to
		set an open flag and decrement the reference count
		if we are not the first open.

		In the cd(4) driver, use cam_periph_release_locked()
		in a couple of error scenarios to avoid extra mutex
		calls.

geom.h:		Add a new, optional, providergone callback that
		is called when a provider is about to be deleted.

geom_disk.h:	Add a new d_gone() callback to the GEOM disk
		interface.

		Bump the DISK_VERSION to version 2.  This probably
		should have been done after a couple of previous
		changes, especially the addition of the d_getattr()
		callback.

geom_disk.c:	Add a providergone callback for the disk class,
		g_disk_providergone(), that calls the user's
		d_gone() callback if it exists.

		Bump the DISK_VERSION to 2.

geom_subr.c:	In g_destroy_provider(), call the providergone
		callback if it has been provided.

		In g_new_geomf(), propagate the class's
		providergone callback to the new geom instance.

blkfront.c:	Callers of disk_create() are supposed to pass in
		DISK_VERSION, not an explicit disk API version
		number.  Update the blkfront driver to do that.

disk.9:		Update the disk(9) man page to include information
		on the new d_gone() callback, as well as the
		previously added d_getattr() callback, d_descr
		field, and HBA PCI ID fields.

MFC after:	5 days
2012-06-24 04:29:03 +00:00
Andrew Turner
74dc547e24 Make the wchar_t type machine dependent.
This is required for ARM EABI. Section 7.1.1 of the Procedure Call for the
ARM Architecture (AAPCS) defines wchar_t as either an unsigned int or an
unsigned short with the former preferred.

Because of this requirement we need to move the definition of __wchar_t to
a machine dependent header. It also cleans up the macros defining the limits
of wchar_t by defining __WCHAR_MIN and __WCHAR_MAX in the same machine
dependent header then using them to define WCHAR_MIN and WCHAR_MAX
respectively.

Discussed with:	bde
2012-06-24 04:15:58 +00:00
Alan Cox
f745b16359 Introduce reserve_pv_entry() and use it in pmap_pv_demote_pde(). In order
to add PV list locking to pmap_pv_demote_pde(), it is necessary to change
the way that pmap_pv_demote_pde() allocates PV entries.  Specifically,
once pmap_pv_demote_pde() begins modifying the PV lists, it can't allocate
any new PV chunks, because that could require the PV list lock to be
dropped.  So, all necessary PV chunks must be allocated in advance.  To my
surprise, this new approach is a few percent faster than the old one.
2012-06-23 22:54:25 +00:00
Navdeep Parhar
4defc81b0e Better way to determine the status page length and rx pad boundary. 2012-06-23 22:12:27 +00:00
Mitsuru IWASAKI
ae2f080bc4 Add in-driver event handler.
MFC after:	3 days
2012-06-23 18:43:54 +00:00
Konstantin Belousov
e1f4f1f860 Correct device id for GPU on some server SandyBridge model.
Submitted and tested by:	Thomas Zander <thomas.e.zander googlemail com>
MFC after:	3 days
2012-06-23 15:36:32 +00:00
Marius Strobl
79e62fee3d Unbreak options ZFS after r236884. 2012-06-23 14:43:25 +00:00
Justin Hibbits
ff1b355c91 Release the ADB keyboard mutex when handling the power button
press/release.  Found by WITNESS.

Approved by:	nwhitehorn (mentor)
MFC after:	3 days
2012-06-23 13:52:44 +00:00
Alexander V. Chernikov
0bfbe5f660 Fix interface matching by ipfw table
Submitted by:     Ihor Kaharlichenko <madkinder@gmail.com>
Tested by:        Ihor Kaharlichenko <madkinder@gmail.com>
Approved by:      kib(mentor)
MFC after:        3 days
2012-06-23 12:40:24 +00:00
Alexander Motin
e7493b2841 Add scsi_extract_sense_ccb() -- wrapper around scsi_extract_sense_len().
It allows to remove number of duplicate checks from several places.
2012-06-23 12:32:53 +00:00
Konstantin Belousov
a665ed986c Move the code dealing with shared page into a dedicated
kern_sharedpage.c source file from kern_exec.c.

MFC after:	  29 days
2012-06-23 10:15:23 +00:00
Konstantin Belousov
c108830417 Remove no longer needed forward declaration for struct sf_buf.
MFC after:	 29 days
2012-06-23 10:14:51 +00:00
Konstantin Belousov
21c295ef88 Stop updating the struct vdso_timehands from even handler executed in
the scheduled task from tc_windup(). Do it directly from tc_windup in
interrupt context [1].

Establish the permanent mapping of the shared page into the kernel
address space, avoiding the potential need to sleep waiting for
allocation of sf buffer during vdso_timehands update. As a
consequence, shared_page_write_start() and shared_page_write_end()
functions are not needed anymore.

Guess and memorize the pointers to native host and compat32 sysentvec
during initialization, to avoid the need to get shared_page_alloc_sx
lock during the update.

In tc_fill_vdso_timehands(), do not loop waiting for timehands
generation to stabilize, since vdso_timehands is written in the same
interrupt context which wrote timehands.

Requested by:	  mav [1]
MFC after:	  29 days
2012-06-23 09:33:06 +00:00
Navdeep Parhar
3c51d1544a Do not allocate extra vectors when adapter is not TOE
capable (or toecaps have been disallowed by the user).

+ one very minor unrelated cleanup in t4_sge.c
2012-06-22 22:59:42 +00:00
Alexander Motin
15a0920e21 Return CAM_SEL_TIMEOUT and CAM_DEV_NOT_THERE instead of CAM_TID_INVALID
and CAM_LUN_INVALID for case of missing devices. In removes tons of error
messages from CAM during bus scans.

Reported and tested by:	Mike Tancsa <mike@sentex.net>
MFC after:	3 days
2012-06-22 21:46:41 +00:00
Bjoern A. Zeeb
23bc7025c4 Just add a comment to further investigate when being closer to that code
again next time.  The condition of the 2nd if() is very unlikely ever met.
2012-06-22 21:26:35 +00:00