Setting the ADC48K44K greatly improves capture quality at 48k sampling rate.
With this bit clear ADC does ZOH interpolation of every 22th sample at 48k.
At frequencies higher than 48k there ADC performs a little better with
ADC48K44K bit set.
At 44.1k ADC performs a little better with this bit clear.
At frequencies below 44.1k there is no difference.
Manuel Lauss [Tue, 6 Nov 2007 10:56:17 +0000 (11:56 +0100)]
[ALSA] ASoC: sh: improve generated code for HAC module (AC97)
Change loops in ac97_read/write functions to count down to zero
rather than up. Gcc will then use the 'dt' (decrement-and-test) op
instead of an increment/compare op-pair.
Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
[ALSA] HDA-Intel - Add support for RV610/RV630 HDMI audio
The Audio interface on HD2400/HD2600 cards isn't currently detected by
snd-hda-intel. I added missing pci device ids for RV610 and RV630, but
I only had a HD2400 pro card to test, where now the audio interface is
detected (and no need to change patch_atihdmi.c, as the codec vendor id
remains 0x1002aa01 for which we already have an entry there). I also
couldn't test if sound pass-trough is ok (and I don't know how to), but
at least now the device is detected.
Signed-off-by: Herton Ronaldo Krzesinski <herton@mandriva.com.br> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
We have to do fairly accurate counting of the minimal periods, instead
of being lazy and just setting the number to zero as soon as one period
elapses.
Signed-off-by: Joachim Foerster <JOFT@gmx.de> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Add ALSA support for the opb_ac97_controller_ref_v1_00_a ip core found
in Xilinx' ML403 reference design.
Known issue: Currently this driver hits a WARN_ON_ONCE(1) statement in
kernel/irq/resend.c (line 70). According to Linus
(http://lkml.org/lkml/2007/8/5/5) this may be ignored, right? I haven't
had a look into this 'problem' yet.
Signed-off-by: Joachim Foerster <JOFT@gmx.de> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This patch adds support for 88.2k, 96k, and 128k samplerates
on cmi8738-55 chip.
Analog playback works fine on all channels.
Analog capture works well too, though the extra samples seems
interpolated by hardware.
spdif playback and capture works fine.
Takashi Iwai [Wed, 31 Oct 2007 14:49:32 +0000 (15:49 +0100)]
[ALSA] hda-codec - Improve the auto-configuration
Some small improvements on autocfg stuff:
- sort HP pins by sequence number, too
- move sole mic pin to AUTO_PIN_MIC instead of AUTO_PIN_FRONT_MIC
- ditto for line-in pin
Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This patch improves support for 'SB Live 24-bit Extarnal' USB card.
1) This card can go into muted state when a headphones connected or
disconnected. So notify mixer about changes in headphone jack.
2) Add LED controls and procfs support just as in similar Audigy 2 NX card.
3) Rename 'PCM Capture' conrol to 'Mic Capture' to reflect reality:
the card may adjust microphone input level only.
Takashi Iwai [Tue, 30 Oct 2007 11:17:17 +0000 (12:17 +0100)]
[ALSA] Remove sequencer instrument layer
Remove sequencer instrument layer from the tree.
This mechanism hasn't been used much with the actual devices. The only
reasonable user was OPL3 loader, and now it was rewritten to use hwdep
instead. So, let's remove the rest of rotten codes.
Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Takashi Iwai [Tue, 30 Oct 2007 10:49:22 +0000 (11:49 +0100)]
[ALSA] opl3 - Use hwdep for patch loading
Use the hwdep device for loading OPL2/3 patch data instead of the
messy sequencer instrument layer.
Due to this change, the sbiload program should be updated, too.
Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Takashi Iwai [Mon, 29 Oct 2007 09:49:43 +0000 (10:49 +0100)]
[ALSA] Dreamcast AICA sound - Get rid of annoying compiler warning
This patch supresses an annoying compiler warning that the variable
err may be used uninitialised.
Signed-off by: Adrian McMenamin <adrian@mcmen.demon.co.uk>
Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Krzysztof Helt [Mon, 29 Oct 2007 09:48:40 +0000 (10:48 +0100)]
[ALSA] ac97_patch: compilation warning fix
This patch kills these two compilation warnings if
power management is disabled:
sound/pci/ac97/ac97_patch.h:86: warning: 'snd_ac97_restore_status'
declared 'static' but never defined
sound/pci/ac97/ac97_patch.h:87: warning: 'snd_ac97_restore_iec958'
declared 'static' but never defined
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Takashi Iwai [Fri, 26 Oct 2007 13:10:15 +0000 (15:10 +0200)]
[ALSA] Introduce slots option to snd module
Introduced the global 'slots' option to snd module. This option provides
an alternative way to handle the order of multiple sound card instances.
It's an easier approach to avoid conflict with hotplug devices, and can
be used together with the existing 'order' option of each card driver.
Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Ivan Kuten [Fri, 26 Oct 2007 12:53:47 +0000 (14:53 +0200)]
[ALSA] soc - ln2440sbc ac97 support
This patch adds ac97 support for ln2440sbc board from LittleChips.
This board is based on s3c2440 SoC + AC97 Realtek ALC650 codec.
Existing s3c2443 implementation is slightly modified because s3c2440
and s3c2443 have different AC97 interrupts.
Signed-off-by: Ivan Kuten <ivan.kuten@promwad.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
The following patch adds 'Mono Playback Switch' control to WM9712 codec
SoC driver.
Also, it fixes Treble, Bass and Mono playback volume inversion bits.
Signed-off-by: Mike Rapoport <mike@compulab.co.il> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Linus Torvalds [Thu, 31 Jan 2008 02:37:27 +0000 (13:37 +1100)]
Merge branch 'for-2.6.25' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* 'for-2.6.25' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (454 commits)
[POWERPC] Cell IOMMU fixed mapping support
[POWERPC] Split out the ioid fetching/checking logic
[POWERPC] Add support to cell_iommu_setup_page_tables() for multiple windows
[POWERPC] Split out the IOMMU logic from cell_dma_dev_setup()
[POWERPC] Split cell_iommu_setup_hardware() into two parts
[POWERPC] Split out the logic that allocates struct iommus
[POWERPC] Allocate the hash table under 1G on cell
[POWERPC] Add set_dma_ops() to match get_dma_ops()
[POWERPC] 83xx: Clean up / convert mpc83xx board DTS files to v1 format.
[POWERPC] 85xx: Only invalidate TLB0 and TLB1
[POWERPC] 83xx: Fix typo in mpc837x compatible entries
[POWERPC] 85xx: convert sbc85* boards to use machine_device_initcall
[POWERPC] 83xx: rework platform Kconfig
[POWERPC] 85xx: rework platform Kconfig
[POWERPC] 86xx: Remove unused IRQ defines
[POWERPC] QE: Explicitly set address-cells and size cells for muram
[POWERPC] Convert StorCenter DTS file to /dts-v1/ format.
[POWERPC] 86xx: Convert all 86xx DTS files to /dts-v1/ format.
[PPC] Remove 85xx from arch/ppc
[PPC] Remove 83xx from arch/ppc
...
Michael Ellerman [Wed, 30 Jan 2008 00:03:44 +0000 (11:03 +1100)]
[POWERPC] Cell IOMMU fixed mapping support
This patch adds support for setting up a fixed IOMMU mapping on certain
cell machines. For 64-bit devices this avoids the performance overhead of
mapping and unmapping pages at runtime. 32-bit devices are unable to use
the fixed mapping.
The fixed mapping is established at boot, and maps all of physical memory
1:1 into device space at some offset. On machines with < 30 GB of memory
we setup the fixed mapping immediately above the normal IOMMU window.
For example a machine with 4GB of memory would end up with the normal
IOMMU window from 0-2GB and the fixed mapping window from 2GB to 6GB. In
this case a 64-bit device wishing to DMA to 1GB would be told to DMA to
3GB, plus any offset required by firmware. The firmware offset is encoded
in the "dma-ranges" property.
On machines with 30GB or more of memory, we are unable to place the fixed
mapping above the normal IOMMU window as we would run out of address space.
Instead we move the normal IOMMU window to coincide with the hash page
table, this region does not need to be part of the fixed mapping as no
device should ever be DMA'ing to it. We then setup the fixed mapping
from 0 to 32GB.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
Michael Ellerman [Tue, 29 Jan 2008 14:14:01 +0000 (01:14 +1100)]
[POWERPC] Add support to cell_iommu_setup_page_tables() for multiple windows
Add support to cell_iommu_setup_page_tables() for handling two windows,
the dynamic window and the fixed window. A fixed window size of 0
indicates that there is no fixed window at all.
Currently there are no callers who pass a non-zero fixed window, but the
upcoming fixed IOMMU mapping patch will change that.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
Michael Ellerman [Tue, 29 Jan 2008 14:14:01 +0000 (01:14 +1100)]
[POWERPC] Split out the IOMMU logic from cell_dma_dev_setup()
Split the IOMMU logic out from cell_dma_dev_setup() into a separate
function. If we're not using dma_direct_ops or dma_iommu_ops we don't
know what the hell's going on, so BUG.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
Michael Ellerman [Tue, 29 Jan 2008 14:14:00 +0000 (01:14 +1100)]
[POWERPC] Split cell_iommu_setup_hardware() into two parts
Split cell_iommu_setup_hardware() into two parts. Split the page table
setup into cell_iommu_setup_page_tables() and the bits that kick the
hardware into cell_iommu_enable_hardware().
Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
Michael Ellerman [Tue, 29 Jan 2008 14:13:59 +0000 (01:13 +1100)]
[POWERPC] Split out the logic that allocates struct iommus
Split out the logic that allocates a struct iommu into a separate
function. This can fail however the calling code has never cared - so
just return if we can't allocate an iommu.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
Michael Ellerman [Tue, 29 Jan 2008 14:13:59 +0000 (01:13 +1100)]
[POWERPC] Allocate the hash table under 1G on cell
In order to support the fixed IOMMU mapping (in a subsequent patch),
we need the hash table to be inside the IOMMUs DMA window. This is
usually 2G, but let's make sure the hash table is under 1G as that
will satisfy the IOMMU requirements and also means the hash table will
be on node 0.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
* git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86:
alpha: fix x86.git merge build error
ia64: on UP percpu variables are not small memory model
x86: fix arch/x86/kernel/test_nx.c modular build bug
s390: use generic percpu linux-2.6.git
POWERPC: use generic per cpu
ia64: use generic percpu
SPARC64: use generic percpu
percpu: change Kconfig to HAVE_SETUP_PER_CPU_AREA
modules: fold percpu_modcopy into module.c
x86: export copy_from_user_ll_nocache[_nozero]
x86: fix duplicated TIF on 64-bit
Linus Torvalds [Thu, 31 Jan 2008 00:40:18 +0000 (11:40 +1100)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6: (26 commits)
firewire: fw-sbp2: Use sbp2 device-provided mgt orb timeout for logins
firewire: fw-sbp2: increase login orb reply timeout, fix "failed to login"
firewire: replace subtraction with bitwise and
firewire: fw-core: react on bus resets while the config ROM is being fetched
firewire: enforce access order between generation and node ID, fix "giving up on config rom"
firewire: fw-cdev: use device generation, not card generation
firewire: fw-sbp2: use device generation, not card generation
firewire: fw-sbp2: try to increase reconnect_hold (speed up reconnection)
firewire: fw-sbp2: skip unnecessary logout
firewire vs. ieee1394: clarify MAINTAINERS
firewire: fw-ohci: Dynamically allocate buffers for DMA descriptors
firewire: fw-ohci: CycleTooLong interrupt management
firewire: Fix extraction of source node id
firewire: fw-ohci: Bug fixes for packet-per-buffer support
firewire: fw-ohci: Fix for dualbuffer three-or-more buffers
firewire: fw-sbp2: remove unused misleading macro
firewire: fw-sbp2: prepare for s/g chaining
firewire: fw-sbp2: refactor workq and kref handling
ieee1394: ohci1394: don't schedule IT tasklets on IR events
ieee1394: sbp2: raise default transfer size limit
...
* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus: (27 commits)
lguest: use __PAGE_KERNEL instead of _PAGE_KERNEL
lguest: Use explicit includes rateher than indirect
lguest: get rid of lg variable assignments
lguest: change gpte_addr header
lguest: move changed bitmap to lg_cpu
lguest: move last_pages to lg_cpu
lguest: change last_guest to last_cpu
lguest: change spte_addr header
lguest: per-vcpu lguest pgdir management
lguest: make pending notifications per-vcpu
lguest: makes special fields be per-vcpu
lguest: per-vcpu lguest task management
lguest: replace lguest_arch with lg_cpu_arch.
lguest: make registers per-vcpu
lguest: make emulate_insn receive a vcpu struct.
lguest: map_switcher_in_guest() per-vcpu
lguest: per-vcpu interrupt processing.
lguest: per-vcpu lguest timers
lguest: make hypercalls use the vcpu struct
lguest: make write() operation smp aware
...
Manual conflict resolved (maybe even correctly, who knows) in
drivers/lguest/x86/core.c
Linus Torvalds [Wed, 30 Jan 2008 22:32:24 +0000 (09:32 +1100)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/selinux-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/selinux-2.6:
security: compile capabilities by default
selinux: make selinux_set_mnt_opts() static
SELinux: Add warning messages on network denial due to error
SELinux: Add network ingress and egress control permission checks
NetLabel: Add auditing to the static labeling mechanism
NetLabel: Introduce static network labels for unlabeled connections
SELinux: Allow NetLabel to directly cache SIDs
SELinux: Enable dynamic enable/disable of the network access checks
SELinux: Better integration between peer labeling subsystems
SELinux: Add a new peer class and permissions to the Flask definitions
SELinux: Add a capabilities bitmap to SELinux policy version 22
SELinux: Add a network node caching mechanism similar to the sel_netif_*() functions
SELinux: Only store the network interface's ifindex
SELinux: Convert the netif code to use ifindex values
NetLabel: Add IP address family information to the netlbl_skbuff_getattr() function
NetLabel: Add secid token support to the NetLabel secattr struct
NetLabel: Consolidate the LSM domain mapping/hashing locks
NetLabel: Cleanup the LSM domain hash functions
NetLabel: Remove unneeded RCU read locks
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-2.6:
PPC: Fix powerpc vio_find_name to not use devices_subsys
Driver core: add bus_find_device_by_name function
Module: check to see if we have a built in module with the same name
x86: fix runtime error in arch/x86/kernel/cpu/mcheck/mce_amd_64.c
Driver core: Fix up build when CONFIG_BLOCK=N
Linus Torvalds [Wed, 30 Jan 2008 22:29:31 +0000 (09:29 +1100)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/dlm
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/dlm: (21 commits)
dlm: static initialization improvements
dlm: clean ups
dlm: Sanity check namelen before copying it
dlm: keep cached master rsbs during recovery
dlm: change error message to debug
dlm: fix possible use-after-free
dlm: limit dir lookup loop
dlm: reject normal unlock when lock is waiting for lookup
dlm: validate messages before processing
dlm: reject messages from non-members
dlm: another call to confirm_master in receive_request_reply
dlm: recover locks waiting for overlap replies
dlm: clear ast_type when removing from astqueue
dlm: use fixed errno values in messages
dlm: swap bytes for rcom lock reply
dlm: align midcomms message buffer
dlm: close othercons
dlm: use dlm prefix on alloc and free functions
dlm: don't print common non-errors
dlm: proper prototypes
...
Ingo Molnar [Wed, 30 Jan 2008 22:27:58 +0000 (23:27 +0100)]
ia64: on UP percpu variables are not small memory model
Tony says:
| The CONFIG_SMP=n path in ia64 makes quite radical changes ... rather
| than putting all the per-cpu stuff into the top 64K of address space
| and providing a per-cpu TLB mapping for that range to a different
| physical address ... it just makes all the per-cpu stuff link as ordinary
| variables in .data.
the new generic percpu code got confused about this as PER_CPU_ATTRIBUTES
was defined even on UP, so it picked up that small memory model - which
was not possible to get linked. The right fix is to only define that
on SMP. This resolved the build failures in my cross-compiling environment.
also link these variables into the .percpu section even on UP - some
assembly code has offset dependencies. (such as GET_IA64_MCA_DATA() in
arch/ia64/kernel/mca_asm.S)
Signed-off-by: Ingo Molnar <mingo@elte.hu> Acked-by: Tony Luck <tony.luck@intel.com>
travis@sgi.com [Wed, 30 Jan 2008 22:27:58 +0000 (23:27 +0100)]
POWERPC: use generic per cpu
Powerpc has a way to determine the address of the per cpu area of the
currently executing processor via the paca and the array of per cpu
offsets is avoided by looking up the per cpu area from the remote
paca's (copying x86_64).
Cc: Paul Mackerras <paulus@samba.org> Cc: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Signed-off-by: Mike Travis <travis@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Acked-by: Olof Johansson <olof@lixom.net> Tested-by: Geoff Levand <geoffrey.levand@am.sony.com>
travis@sgi.com [Wed, 30 Jan 2008 22:27:58 +0000 (23:27 +0100)]
modules: fold percpu_modcopy into module.c
percpu_modcopy() is defined multiple times in arch files. However, the only
user is module.c. Put a static definition into module.c and remove
the definitions from the arch files.
Jarod Wilson [Sat, 26 Jan 2008 04:31:12 +0000 (23:31 -0500)]
firewire: fw-sbp2: Use sbp2 device-provided mgt orb timeout for logins
To be more compliant with section 7.4.8 of the SBP-2 specification,
use the mgt_ORB_timeout specified in the SBP-2 device's config rom
for login ORB attempts (though with some sanity checks). A happy
side-effect is that certain device and controller combinations that
sometimes take more than 20 seconds to get synced up (like my laptop
with just about any SBP-2 device) now function more reliably.
Signed-off-by: Jarod Wilson <jwilson@redhat.com> Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> (silenced sparse)
Increase (and rename) the login orb reply timeout value to 20s
to match that of the old firewire stack. 2s simply didn't give
many devices enough time to spin up and reply.
Fixes inability to recognize some devices.
Failure mode was "orb reply timed out"/"failed to login".
Signed-off-by: Jarod Wilson <jwilson@redhat.com> Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> (style, comments, changelog)
Jarod Wilson [Wed, 23 Jan 2008 21:05:45 +0000 (16:05 -0500)]
firewire: replace subtraction with bitwise and
Replace an unnecessary subtraction with a bitwise AND when determining the
value of ext_tcode in fw_fill_transaction() to save a cpu cycle or two in a
somewhat critical path.
Signed-off-by: Jarod Wilson <jwilson@redhat.com> Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Stefan Richter [Fri, 25 Jan 2008 16:53:49 +0000 (17:53 +0100)]
firewire: fw-core: react on bus resets while the config ROM is being fetched
read_rom() obtained a fresh new fw_device.generation for each read
transaction. Hence it was able to continue reading in the middle of the
ROM even if a bus reset happened. However the device may have modified
the ROM during the reset. We would end up with a corrupt fetched ROM
image then.
Although all of this is quite unlikely, it is not impossible.
Therefore we now restart reading the ROM if the bus generation changed.
Note, the memory barrier in read_rom() is still necessary according to
tests by Jarod Wilson, despite of the ->generation access being moved up
in the call chain.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
This is essentially what I've been beating on locally, and I've yet to hit
another config rom read failure with it.
Stefan Richter [Fri, 25 Jan 2008 17:57:41 +0000 (18:57 +0100)]
firewire: enforce access order between generation and node ID, fix "giving up on config rom"
fw_device.node_id and fw_device.generation are accessed without mutexes.
We have to ensure that all readers will get to see node_id updates
before generation updates.
Fixes an inability to recognize devices after "giving up on config rom",
https://bugzilla.redhat.com/show_bug.cgi?id=429950
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Reviewed by Nick Piggin <nickpiggin@yahoo.com.au>.
Verified to fix 'giving up on config rom' issues on multiple system and
drive combinations that were previously affected.
Signed-off-by: Jarod Wilson <jwilson@redhat.com> Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Stefan Richter [Thu, 24 Jan 2008 00:53:51 +0000 (01:53 +0100)]
firewire: fw-cdev: use device generation, not card generation
We have to use the fw_device.generation here, not the fw_card.generation,
because the generation must never be newer than the node ID when we emit
a transaction. This cannot be guaranteed with fw_card.generation.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Verified in concert with subsequent memory barriers patch to fix 'giving
up on config rom' issues on multiple system and drive combinations that
were previously affected.
Stefan Richter [Thu, 24 Jan 2008 00:53:19 +0000 (01:53 +0100)]
firewire: fw-sbp2: use device generation, not card generation
There was a small window where a login or reconnect job could use an
already updated card generation with an outdated node ID. We have to
use the fw_device.generation here, not the fw_card.generation, because
the generation must never be newer than the node ID when we emit a
transaction. This cannot be guaranteed with fw_card.generation.
Furthermore, the target's and initiator's node IDs can be obtained from
fw_device and fw_card. Dereferencing their underlying topology objects
is not necessary.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Verified in concert with subsequent memory barriers patch to fix 'giving
up on config rom' issues on multiple system and drive combinations that
were previously affected.
Stefan Richter [Sun, 20 Jan 2008 00:25:31 +0000 (01:25 +0100)]
firewire: fw-sbp2: try to increase reconnect_hold (speed up reconnection)
Ask the target to grant 4 seconds instead of the standard and minimum of
1 second window after bus reset for reconnection. This accelerates
reconnection if there are more than one targets on the bus: If a login
and inquiry to one target blocks the fw-sbp2 workqueue for more than 1s
after bus reset, we now still can reconnect to the other target.
Before that, fw-sbp2's reconnect attempts would be rejected with "error
status: 0:9" (function rejected), and fw-sbp2 would finally re-login.
All those futile reconnect attemps cost extra time until the target
which needs re-login is ready for I/O again.
The reconnect timeout field in the login ORB doesn't have to be honored
by the target though. I found that we could get up to
- allegedly 32768s from an old OXFW911 firmware
- 256s from LSI bridges
- 4s from OXUF922 and OXFW912 bridges,
- 2s from TI bridges,
- only the standard 1s from Initio and Prolific bridges and from
Apple OpenFirmware in target mode.
We just try to get 4 seconds which already covers the case of a few
HDDs on the same bus quite nicely.
A minor drawback occurs in the following (rare and impractical) border
case:
- two initiators are there, initiator 1 holds an exclusive login to
a target,
- initiator 1 goes off the bus,
- target refuses login attempts from initiator 2 until reconnect_hold
seconds after bus reset.
An alternative approach to the issue at hand would be to parallelize
fw-sbp2's reconnect and login work.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Acked-by: Jarod Wilson <jwilson@redhat.com>
Stefan Richter [Sun, 20 Jan 2008 00:24:26 +0000 (01:24 +0100)]
firewire: fw-sbp2: skip unnecessary logout
Don't attempt to send a logout ORB if the target was already unplugged
or had its link switched off. If two targets are attached, this
enhances the chance to quickly reconnect to the remaining target when
one target is plugged out.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Acked-by: Jarod Wilson <jwilson@redhat.com>
David Moore [Sun, 6 Jan 2008 22:21:41 +0000 (17:21 -0500)]
firewire: fw-ohci: Dynamically allocate buffers for DMA descriptors
Previously, the fw-ohci driver used fixed-length buffers for storing
descriptors for isochronous receive DMA programs. If an application
(such as libdc1394) generated a DMA program that was too large, fw-ohci
would reach the limit of its fixed-sized buffer and return an error to
userspace.
This patch replaces the fixed-length ring-buffer with a linked-list of
page-sized buffers. Additional buffers can be dynamically allocated and
appended to the list when necessary. For a particular context, buffers
are kept around after use and reused as necessary, so there is no
allocation taking place after the DMA program is generated for the first
time.
In addition, the buffers it uses are coherent for DMA so there is no
syncing required before and after writes. This syncing wasn't properly
done in the previous version of the code.
-
This is the fourth version of my patch that replaces a fixed-length
buffer for DMA descriptors with a dynamically allocated linked-list of
buffers.
As we discovered with the last attempt, new context programs are
sometimes queued from interrupt context, making it unacceptable to call
tasklet_disable() from context_get_descriptors().
This version of the patch uses ohci->lock for all locking needs instead
of tasklet_disable/enable. There is a new requirement that
context_get_descriptors() be called while holding ohci->lock. It was
already held for the AT context, so adding the requirement for the iso
context did not seem particularly onerous. In addition, this has the
side benefit of allowing iso queue to be safely called from concurrent
user-space threads, which previously was not safe.
Signed-off-by: David Moore <dcm@acm.org> Signed-off-by: Kristian Høgsberg <krh@redhat.com> Signed-off-by: Jarod Wilson <jwilson@redhat.com>
-
Fixes the following issues:
- Isochronous reception stopped prematurely if an application used a
larger buffer. (Reproduced with coriander.)
- Isochronous reception stopped after one or a few frames on VT630x
in OHCI 1.0 mode. (Fixes reception in coriander, but dvgrab still
doesn't work with these chips.)
Patch update: struct member alignment, whitespace nits
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
The firewire-ohci driver so far lacked the ability to resume cycle
master duty after that condition happened, as added to ohci1394 in Linux
2.6.18 by commit 57fdb58fa5a140bdd52cf4c4ffc30df73676f0a5. This ports
this patch to fw-ohci.
The "cycle too long" condition has been seen in practice
- with IIDC cameras if a mode with packets too large for a speed is
chosen,
- sporadically when capturing DV on a VIA VT6306 card with ohci1394/
ieee1394/ raw1394/ dvgrab 2.
https://bugzilla.redhat.com/show_bug.cgi?id=415841#c7
(This does not fix Fedora bug 415841.)
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
David Moore [Wed, 19 Dec 2007 20:26:38 +0000 (15:26 -0500)]
firewire: fw-ohci: Bug fixes for packet-per-buffer support
This patch corrects a number of bugs in the current OHCI 1.0
packet-per-buffer support:
1. Correctly deal with payloads that cross a page boundary. The
previous version would not split the descriptor at such a boundary,
potentially corrupting unrelated memory.
2. Allow user-space to specify multiple packets per struct
fw_cdev_iso_packet in the same way that dual-buffer allows. This is
signaled by header_length being a multiple of header_size. This
multiple determines the number of packets. The payload size allocated
per packet is determined by dividing the total payload size by the
number of packets.
3. Make sync support work properly for packet-per-buffer.
I have tested this patch with libdc1394 by forcing my OHCI 1.1
controller to use the packet-per-buffer support instead of dual-buffer.
I would greatly appreciate testing by those who have a DV devices and
other types of iso streamers to make sure I didn't cause any
regressions.
Stefan, with this patch, I'm hoping that libdc1394 will work with all
your OHCI 1.0 controllers now.
The one bit of future work that remains for packet-per-buffer support is
the automatic compaction of short payloads that I discussed with
Kristian.
Signed-off-by: David Moore <dcm@acm.org> Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
David Moore [Wed, 19 Dec 2007 08:09:18 +0000 (03:09 -0500)]
firewire: fw-ohci: Fix for dualbuffer three-or-more buffers
This patch fixes the problem where different OHCI 1.1 controllers behave
differently when a received iso packet straddles three or more buffers
when using the dual-buffer receive mode. Two changes are made in order
to handle this situation:
1. The packet sync DMA descriptor is given a non-zero header length and
non-zero payload length. This is because zero-payload descriptors are
not discussed in the OHCI 1.1 specs and their behavior is thus
undefined. Instead we use a header size just large enough for a single
header and a payload length of 4 bytes for this first descriptor.
2. As we process received packets in the context's tasklet, read the
packet length out of the headers. Keep track of the running total of
the packet length as "excess_bytes", so we can ignore any descriptors
where no packet starts or ends. These descriptors may not have had
their first_res_count or second_res_count fields updated by the
controller so we cannot rely on those values.
The main drawback of this patch is that the excess_bytes value might get
"out of sync" with the packet descriptors if something strange happens
to the DMA program. I'm not if such a thing could ever happen, but I
appreciate any suggestions in making it more robust.
Also, the packet-per-buffer support may need a similar fix to deal with
issue 1, but I haven't done any work on that yet.
Stefan, I'm hoping that with this patch, all your OHCI 1.1 controllers
will work properly with an unmodified version of libdc1394.
Signed-off-by: David Moore <dcm@acm.org> Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Stefan Richter [Sun, 16 Dec 2007 19:53:13 +0000 (20:53 +0100)]
ieee1394: ohci1394: don't schedule IT tasklets on IR events
Bug noted by Pieter Palmers: Isochronous transmit tasklets were
scheduled on isochronous receive events, in addition to the proper
isochronous receive tasklets.
Stefan Richter [Sun, 16 Dec 2007 16:31:26 +0000 (17:31 +0100)]
ieee1394: sbp2: raise default transfer size limit
This patch speeds up sbp2 a little bit --- but more importantly, it
brings the behavior of sbp2 and fw-sbp2 closer to each other. Like
fw-sbp2, sbp2 now does not limit the size of single transfers to 255
sectors anymore, unless told so by a blacklist flag or by module load
parameters.
Only very old bridge chips have been known to need the 255 sectors
limit, and we have got one such chip in our hardwired blacklist. There
certainly is a danger that more bridges need that limit; but I prefer to
have this issue present in both fw-sbp2 and sbp2 rather than just one of
them.
An OXUF922 with 400GB 7200RPM disk on an S400 controller is sped up by
this patch from 22.9 to 23.5 MB/s according to hdparm. The same effect
could be achieved before by setting a higher max_sectors module
parameter. On buses which use 1394b beta mode, sbp2 and fw-sbp2 will
now achieve virtually the same bandwidth. Fw-sbp2 only remains faster
on 1394a buses due to fw-core's gap count optimization.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Nick Piggin [Wed, 5 Dec 2007 07:15:53 +0000 (18:15 +1100)]
ieee1394: nopage
Convert ieee1394 from nopage to fault.
Remove redundant vma range checks (correct resource range check is retained).
Signed-off-by: Nick Piggin <npiggin@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
James Bottomley [Tue, 15 Jan 2008 17:11:46 +0000 (11:11 -0600)]
[SCSI] remove use_sg_chaining
With the sg table code, every SCSI driver is now either chain capable
or broken (or has sg_tablesize set so chaining is never activated), so
there's no need to have a check in the host template.
Also tidy up the code by moving the scatterlist size defines into the
SCSI includes and permit the last entry of the scatterlist pools not
to be a power of two. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
projects / linux-2.6 / log