Commit Graph

553 Commits

Author SHA1 Message Date
Linus Torvalds
ff830b8e5f 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:
  ieee1394: sbp2: remove a workaround for Momobay FX-3A
  firewire: sbp2: remove a workaround for Momobay FX-3A
  firewire: sbp2: fix status reception
  firewire: core: fix topology map response handler
  firewire: core: fix race with parallel PCI device probe
  firewire: core: header file cleanup
  firewire: ohci: fix Self ID Count register mask (safeguard against buffer overflow)
  ieee1394: raw1394: Do not leak memory on failed trylock.
2009-09-23 09:43:22 -07:00
Stefan Richter
625f0850a8 ieee1394: sbp2: remove a workaround for Momobay FX-3A
The inquiry delay is not necessary anymore in tests on a recent kernel.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2009-09-12 14:48:41 +02:00
Michael Buesch
64549e9357 ieee1394: raw1394: Do not leak memory on failed trylock.
Do not leak the allocated memory in case the mutex_trylock() failed
to acquire the lock.

Signed-off-by: Michael Buesch <mb@bu3sch.de>

This bug does not happen in practice:  All raw1394 clients use
libraw1394, and accesses to a libraw1394 handle need to be serialized
by the client.  This is documented in libraw1394's API reference.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2009-09-12 14:48:40 +02:00
Eric Dumazet
451f144398 drivers: Kill now superfluous ->last_rx stores
The generic packet receive code takes care of setting
netdev->last_rx when necessary, for the sake of the
bonding ARP monitor.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Acked-by: Neil Horman <nhorman@txudriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-02 23:07:36 -07:00
Stephen Hemminger
0fc0b732ea netdev: drivers should make ethtool_ops const
No need to put ethtool_ops in data, they should be const.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-02 01:03:33 -07:00
Stephen Hemminger
6fef4c0c8e netdev: convert pseudo-devices to netdev_tx_t
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-01 01:13:07 -07:00
Linus Torvalds
f63bafe556 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:
  ieee1394: sbp2: add support for disks >2 TB (and 16 bytes long CDBs)
  firewire: sbp2: add support for disks >2 TB (and 16 bytes long CDBs)
  firewire: core: do not DMA-map stack addresses
2009-07-06 14:03:44 -07:00
Stefan Richter
ebbb16bffa ieee1394: sbp2: add support for disks >2 TB (and 16 bytes long CDBs)
Increase the command ORB data structure to transport up to 16 bytes long
CDBs (instead of 12 bytes), and tell the SCSI mid layer about it.  This
is notably necessary for READ CAPACITY(16) and friends, i.e. support of
large disks.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2009-07-02 21:27:01 +02:00
Linus Torvalds
1053414068 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:
  firewire: new stack is no longer experimental
  firewire: net: better FIFO address range check and rcodes
  firewire: net: fix card driver reloading
  firewire: core: fix iso context shutdown on card removal
  firewire: core: fix DMA unmapping in iso buffer removal
  firewire: net: adjust net_device ops
  firewire: net: remove unused code
  firewire: net: allow for unordered unit discovery
  firewire: net: style changes
  firewire: net: add Kconfig item, rename driver
  firewire: add IPv4 support
2009-06-22 21:29:52 -07:00
Stefan Richter
0c53decdd0 firewire: new stack is no longer experimental
The new stack is now recommended over the old one if used for industrial
video (IIDC/DCAM) or for storage devices (SBP-2) due to better
performance, improved compatibility, added features, and security.  It
should also be functionally on par with and is more secure than the old
ieee1394 stack in the use case of consumer video devices.

IP-over-1394 support for the new stack is currently emerging, and a
backend of the firedtv DVB driver to the new stack should be available
soon.

The one remaining area where the old stack is still required are audio
devices, as the new stack is not yet able to support the FFADO FireWire
audio framework.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2009-06-21 10:53:26 +02:00
Linus Torvalds
b3fec0fe35 Merge branch 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/vegard/kmemcheck
* 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/vegard/kmemcheck: (39 commits)
  signal: fix __send_signal() false positive kmemcheck warning
  fs: fix do_mount_root() false positive kmemcheck warning
  fs: introduce __getname_gfp()
  trace: annotate bitfields in struct ring_buffer_event
  net: annotate struct sock bitfield
  c2port: annotate bitfield for kmemcheck
  net: annotate inet_timewait_sock bitfields
  ieee1394/csr1212: fix false positive kmemcheck report
  ieee1394: annotate bitfield
  net: annotate bitfields in struct inet_sock
  net: use kmemcheck bitfields API for skbuff
  kmemcheck: introduce bitfield API
  kmemcheck: add opcode self-testing at boot
  x86: unify pte_hidden
  x86: make _PAGE_HIDDEN conditional
  kmemcheck: make kconfig accessible for other architectures
  kmemcheck: enable in the x86 Kconfig
  kmemcheck: add hooks for the page allocator
  kmemcheck: add hooks for page- and sg-dma-mappings
  kmemcheck: don't track page tables
  ...
2009-06-16 13:09:51 -07:00
Greg Kroah-Hartman
bab030595a ieee1394: remove driver_data direct access of struct device
In the near future, the driver core is going to not allow direct access
to the driver_data pointer in struct device.  Instead, the functions
dev_get_drvdata() and dev_set_drvdata() should be used.  These functions
have been around since the beginning, so are backwards compatible with
all older kernel versions.

Cc: linux1394-devel@lists.sourceforge.net
Acked-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Cc: Ben Collins <ben.collins@ubuntu.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15 21:30:26 -07:00
Vegard Nossum
96c25c81ec ieee1394/csr1212: fix false positive kmemcheck report
kmemcheck reports a use of uninitialized memory here, but it's not
a real error. The structure in question has just been allocated, and
the whole field is initialized, but it happens in two steps.

We fix the false positive by inserting a kmemcheck annotation.

Signed-off-by: Vegard Nossum <vegard.nossum@gmail.com>
2009-06-15 15:49:31 +02:00
Vegard Nossum
004cdb5a71 ieee1394: annotate bitfield
Signed-off-by: Vegard Nossum <vegard.nossum@gmail.com>
2009-06-15 15:49:29 +02:00
Stefan Richter
b9530fd6c3 firewire: net: add Kconfig item, rename driver
The driver is now called firewire-net.  It might implement the transport
of other networking protocols in the future, notably IPv6 per RFC 3146.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2009-06-14 14:26:29 +02:00
Theodore Ts'o
9fd5746fd3 fs: Remove i_cindex from struct inode
The only user of the i_cindex element in the inode structure is used
is by the firewire drivers.  As part of an attempt to slim down the
inode structure to save memory --- since a typical Linux system will
have hundreds of thousands if not millions of inodes cached, a
reduction in the size inode has high leverage.

The firewire driver does not need i_cindex in any fast path, so it's
simple enough to calculate when it is needed, instead of wasting space
in the inode structure.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: krh@redhat.com
Cc: stefanr@s5r6.in-berlin.de
Cc: linux-fsdevel@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2009-06-11 21:36:09 -04:00
Yang Hongyang
284901a90a dma-mapping: replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32)
Replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32)

Signed-off-by: Yang Hongyang<yanghy@cn.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-07 08:31:11 -07:00
Linus Torvalds
febb02bdfe 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: (53 commits)
  DVB: firedtv: FireDTV S2 problems with tuning solved
  DVB: firedtv: fix printk format mismatch
  ieee1394: constify device ID tables
  ieee1394: raw1394: add sparse annotations to raw1394_compat_write
  ieee1394: Storage class should be before const qualifier
  ieee1394: sbp2: follow up on "ieee1394: inherit ud vendor_id from node vendor_id"
  firewire: core: optimize propagation of BROADCAST_CHANNEL
  firewire: core: simplify broadcast channel allocation
  firewire: core: increase bus manager grace period
  firewire: core: drop unused call parameters of close_transaction
  firewire: cdev: add closure to async stream ioctl
  firewire: cdev: simplify FW_CDEV_IOC_SEND_REQUEST return value
  firewire: cdev: fix race of ioctl_send_request with bus reset
  firewire: cdev: secure add_descriptor ioctl
  firewire: cdev: amendment to "add ioctl to query maximum transmission speed"
  firewire: broadcast channel support
  firewire: implement asynchronous stream transmission
  firewire: core: normalize a function argument name
  firewire: normalize a variable name
  firewire: core: remove condition which is always false
  ...
2009-03-27 18:33:56 -07:00
Stefan Richter
c64094684d ieee1394: constify device ID tables
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2009-03-24 20:56:53 +01:00
Stefan Richter
421696887b ieee1394: raw1394: add sparse annotations to raw1394_compat_write
Eliminate the following warnings in raw1394_compat_write()'s error
return path, seen on x86-64 with CONFIG_COMPAT=y:

drivers/ieee1394/raw1394.c:381:17: warning: incorrect type in return expression (different address spaces)
drivers/ieee1394/raw1394.c:381:17:    expected char const [noderef] <asn:1>*
drivers/ieee1394/raw1394.c:381:17:    got void *
drivers/ieee1394/raw1394.c:2252:14: warning: incorrect type in argument 1 (different address spaces)
drivers/ieee1394/raw1394.c:2252:14:    expected void const *ptr
drivers/ieee1394/raw1394.c:2252:14:    got char const [noderef] <asn:1>*[assigned] buffer
drivers/ieee1394/raw1394.c:2253:19: warning: incorrect type in argument 1 (different address spaces)
drivers/ieee1394/raw1394.c:2253:19:    expected void const *ptr
drivers/ieee1394/raw1394.c:2253:19:    got char const [noderef] <asn:1>*[assigned] buffer

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2009-03-24 20:56:52 +01:00
Tobias Klauser
1c4fb577aa ieee1394: Storage class should be before const qualifier
The C99 specification states in section 6.11.5:

The placement of a storage-class specifier other than at the beginning
of the declaration specifiers in a declaration is an obsolescent
feature.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2009-03-24 20:56:52 +01:00
Stefan Richter
e90874f64c ieee1394: sbp2: follow up on "ieee1394: inherit ud vendor_id from node vendor_id"
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2009-03-24 20:56:52 +01:00
Jonathan Corbet
60aa49243d Rationalize fasync return values
Most fasync implementations do something like:

     return fasync_helper(...);

But fasync_helper() will return a positive value at times - a feature used
in at least one place.  Thus, a number of other drivers do:

     err = fasync_helper(...);
     if (err < 0)
             return err;
     return 0;

In the interests of consistency and more concise code, it makes sense to
map positive return values onto zero where ->fasync() is called.

Cc: Al Viro <viro@ZenIV.linux.org.uk>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2009-03-16 08:34:35 -06:00
Linus Torvalds
86883c2736 Make ieee1394_init a fs-initcall
It needs to happen before any firewire driver actually registers itself,
and that was previously handled by having the Makefile list the core
ieee1394 files before the drivers.

But now there are firewire drivers in drivers/media, and the Makefile
games aren't enough.  So just make ieee1394_init happen earlier in the
init sequence, the way all other bus layers already do.

Reported-and-tested-by: Ingo Molnar <mingo@elte.hu>
Cc: Stefan Richter <stefanr@s5r6.in-berlin.de>
Cc: Henrik Kurelid <henrik@kurelid.se>
Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
Cc: Ben Backx <ben@bbackx.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-26 10:32:31 -08:00
Stefan Richter
00fc3072e4 ieee1394: remove superfluous assertions
hpsb_read, hpsb_write, hpsb_lock are sleeping functions which nobody is
in danger to use in atomic context.  Besides, in_interrupt does not
cover all types of atomic context.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2009-02-24 14:51:28 +01:00
Stefan Richter
9c939e4df4 ieee1394: inherit ud vendor_id from node vendor_id
While Module_Vendor_ID in the configuration ROM's root directory is
mandatory, there often aren't vendor IDs in unit directories.  This
affects the new firedtv driver which is meant to be auto-loaded and
matched only for vendor-specific devices.

We now always copy ne->vendor_id into ud->vendor_id before we scan a
unit directory (and fill in a possibly present vendor ID from there).
This way, the root directory's vendor ID is used as fallback in the
"uevent" environment for modprobe'ing per module alias when a node was
plugged in, and in the driver match routine when protocol drivers are
bound to unit directories.  It will however not be used as sysfs
attribute of a unit directory device.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2009-02-24 14:51:27 +01:00
Stefan Richter
b33fdd6ca5 ieee1394: add hpsb_node_read() and hpsb_node_lock()
These will be used by the firedtv driver.  Like hpsb_node_write() they
are much better APIs for high-level drivers than hpsb_write() and its
siblings --- easier to use correctly and also terser.

Unlike hspb_node_write(), the two new functions will only be used by
one call site.  Hence make them static inline instead of exported
symbols.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2009-02-24 14:51:27 +01:00
Stefan Richter
29f8ea8ab0 ieee1394: use correct barrier types between accesses of nodeid and generation
A compiler barrier (explicit on the read side, implicit on the write
side) is not quite enough for what has to be accomplished here.  Use
hardware memory barriers on systems which need them.

(Of course a full fix of generation handling would require much more
than this.  The ieee1394 core's bus generation counter had to be tied to
the controller's bus generation counter; cf. Kristian's stack.  It's
just that I have other current business with the code around these
barrier()s, so why not do at least this small fix.)

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2009-02-24 14:51:26 +01:00
Stefan Richter
612262a533 firesat: copyrights, rename to firedtv, API conversions, fix remote control input
Combination of the following changes:

Tue, 26 Aug 2008 00:17:30 +0200 (CEST)
firedtv: fix remote control input

    and update the scancode-to-keycode mapping to a current model.  Per
    default, various media key keycodes are emitted which closely match what
    is printed on the remote.  Userland can modify the mapping by means of
    evdev ioctls.  (Not tested.)

    The old scancode-to-keycode mapping is left in the driver but cannot be
    modified by ioctls.  This preserves status quo for old remotes.

Tue, 26 Aug 2008 00:11:28 +0200 (CEST)
firedtv: replace tasklet by workqueue job

    Non-atomic context is a lot nicer to work with.

Sun, 24 Aug 2008 23:30:00 +0200 (CEST)
firedtv: move some code back to ieee1394 core

    Partially reverts "ieee1394: remove unused code" of Linux 2.6.25.

Sun, 24 Aug 2008 23:29:30 +0200 (CEST)
firedtv: replace semaphore by mutex

    firesat->avc_sem and ->demux_sem have been used exactly like a mutex.
    The only exception is the schedule_remotecontrol tasklet which did a
    down_trylock in atomic context.  This is not possible with
    mutex_trylock; however the whole remote control related code is
    non-functional anyway at the moment.  This should be fixed eventually,
    probably by turning the tasklet into a worqueue job.

    Convert everything else from semaphore to mutex.

    Also rewrite a few of the affected functions to unlock the mutex at a
    single exit point, instead of in several branches.

Sun, 24 Aug 2008 23:28:45 +0200 (CEST)
firedtv: some header cleanups

    Unify #ifndef/#define/#endif guards against multiple inclusion.
    Drop extern keyword from function declarations.
    Remove #include's into header files where struct declarations suffice.

    Remove unused ohci1394 interface and related unused ieee1394 interfaces.

    Add a few missing #include's and remove a few apparently obsolete ones.
    Sort them alphabetically.

Sun, 24 Aug 2008 23:27:45 +0200 (CEST)
firedtv: nicer registration message and some initialization fixes

    Print the correct name in dvb_register_adapter().

    While we are at it, replace two switch cascades by one for loop, remove
    a superfluous member of struct firesat and of two unused arguments of
    AVCIdentifySubunit(), and fix bogus kfree's in firesat_dvbdev_init().

Tue, 26 Aug 2008 14:24:17 +0200 (CEST)
firesat: rename to firedtv

    Suggested by Andreas Monitzer.  Besides DVB-S/-S2 receivers, the driver
    also supports DVB-C and DVB-T receivers, hence the previous project name
    is too narrow now.

    Not yet done:  Rename source directory, files, types, variables...

Sun, 24 Aug 2008 23:26:23 +0200 (CEST)
firesat: add missing copyright notes

    Reported by Andreas Monitzer and Christian Dolzer.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2009-02-24 14:51:26 +01:00
Linus Torvalds
5e3bd4e4b1 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:
  ieee1394: dv1394: move deprecation message from module init to file open
  firewire: core: Remove card from list of cards when enable fails
2009-02-06 08:48:16 -08:00
Stefan Richter
86431532ec ieee1394: dv1394: move deprecation message from module init to file open
On many Linux installations, the dv1394 driver will be auto-loaded
whenever an AV/C device (e.g. camcorder or audio device) is plugged in.
An irritating message would then appear in the kernel log.

Defer this message to until a dv1394 character device file is actually
used by a program.  Also include the program name in the message and
update the message slightly.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2009-02-06 15:52:28 +01:00
Linus Torvalds
ceb5eb0cb3 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:
  ieee1394: sbp2: add workarounds for 2nd and 3rd generation iPods
  firewire: sbp2: add workarounds for 2nd and 3rd generation iPods
  firewire: sbp2: fix DMA mapping leak on the failure path
  firewire: sbp2: define some magic numbers as macros
  firewire: sbp2: fix payload limit at S1600 and S3200
  ieee1394: sbp2: don't assume zero model_id or firmware_revision if there is none
  ieee1394: sbp2: fix payload limit at S1600 and S3200
  ieee1394: sbp2: update a help string
  ieee1394: support for speeds greater than S800
  firewire: core: optimize card shutdown
  ieee1394: ohci1394: increase AT req. retries, fix ack_busy_X from Panasonic camcorders and others
  firewire: ohci: increase AT req. retries, fix ack_busy_X from Panasonic camcorders and others
  firewire: ohci: change "context_stop: still active" log message
  firewire: keep highlevel drivers attached during brief connection loss
  firewire: unnecessary BM delay after generation rollover
  firewire: insist on successive self ID complete events
2009-01-29 18:09:41 -08:00
Stefan Richter
1448d7c6a2 ieee1394: sbp2: add workarounds for 2nd and 3rd generation iPods
as per https://bugs.launchpad.net/bugs/294391.  These got one sample of
each iPod generation going.  However there still occurred I/O stalls
with the 3rd generation iPod which remain undiagnosed at the time of
this writing.

Acked-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2009-01-29 20:19:49 +01:00
Stefan Richter
c1fbdd7851 ieee1394: sbp2: don't assume zero model_id or firmware_revision if there is none
This makes sbp2 behave more like firewire-sbp2 which reports 0xff000000
as immediate value if there are no unit directory entries for model_id
or firmware_revision.

It does not reduce matches with the currently existing quirks table; the
only zero entry there is for a device which actually does have a zero
model_id.  It only changes how model_id and firmware_revision are logged
if they are missing.

Other functionally unrelated changes:  The model_id member of quirks
list entries is renamed to model;  the value (but not the effect) of
SBP2_ROM_VALUE_WILDCARD is changed.  Now this part of the source is
identical with firewire-sbp2 for easier maintenance.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2009-01-28 20:31:06 +01:00
Stefan Richter
d3e3e970e3 ieee1394: sbp2: fix payload limit at S1600 and S3200
1394-2008 clause 16.3.4.1 (1394b-2002 clause 16.3.1.1) defines tighter
limits than 1394-2008 clause 6.2.2.3 (1394a-2000 clause 6.2.2.3).

Our previously too large limit doesn't matter though if the controller
reports its max_receive correctly.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2009-01-28 20:31:06 +01:00
Stefan Richter
4106ceff15 ieee1394: sbp2: update a help string
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2009-01-28 20:31:06 +01:00
Stefan Richter
82d4b90deb ieee1394: support for speeds greater than S800
The hard-wired configuration of the top speed (until now S800) was
unnecessary, remove it.

If the local link layer controller supports S1600 or S3200, we now
assume this speed for all present 1394b PHYs (except if they are
behind 1394a repeaters) until nodemgr figured out the actual speed
while fetching the config ROM.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2009-01-28 20:31:05 +01:00
Jean Delvare
1745522ccb i2c: Delete many unused adapter IDs
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2009-01-26 21:19:52 +01:00
Stefan Richter
64c634ef83 ieee1394: ohci1394: increase AT req. retries, fix ack_busy_X from Panasonic camcorders and others
Camcorders have a tendency to fail read requests to their config ROM and
write request to their FCP command register with ack_busy_X.  This has
become a problem with newer kernels and especially Panasonic camcorders,
causing AV/C in dvgrab and kino to fail.  Dvgrab for example frequently
logs "send oops"; kino reports loss of AV/C control.  I suspect that
lower CPU scheduling latencies in newer kernels made this issue more
prominent now.

According to
https://sourceforge.net/tracker/?func=detail&atid=114103&aid=2492640&group_id=14103
this can be fixed by configuring the FireWire controller for more
hardware retries for request transmission; these retries are evidently
more successful than libavc1394's own retry loop (typically 3 tries on
top of hardware retries).

Presumably the same issue has been reported at
https://bugzilla.redhat.com/show_bug.cgi?id=449252 and
https://bugzilla.redhat.com/show_bug.cgi?id=477279 .

Tested-by: Mathias Beilstein
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2009-01-24 11:17:28 +01:00
David S. Miller
7f46b1343f Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6 2009-01-08 11:05:59 -08:00
Stephen Hemminger
92dc8cc317 ieee1394: use internal network device stats
Use the network_device_stats field in network_device.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Acked-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-06 16:49:02 -08:00
Stephen Hemminger
464f4daae7 ieee1394: remove unneeded last_rx
Last_rx is now done if needed inside bonding.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Acked-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-06 16:48:46 -08:00
Stephen Hemminger
79994c9906 ieee1394: convert to net_device_ops
Convert to net_device_ops.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Acked-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-06 16:48:30 -08:00
Harvey Harrison
c82cdea1e1 ieee1934: dv1394: interrupt enabling/disabling broken on big-endian
After annotating the frame structs, this was left:
drivers/ieee1394/dv1394.c:2113:23: warning: invalid assignment: |=
drivers/ieee1394/dv1394.c:2113:23:    left side has type restricted __le32
drivers/ieee1394/dv1394.c:2113:23:    right side has type int
drivers/ieee1394/dv1394.c:2121:24: warning: invalid assignment: &=
drivers/ieee1394/dv1394.c:2121:24:    left side has type restricted __le32
drivers/ieee1394/dv1394.c:2121:24:    right side has type int
drivers/ieee1394/dv1394.c:2123:24: warning: invalid assignment: |=
drivers/ieee1394/dv1394.c:2123:24:    left side has type restricted __le32
drivers/ieee1394/dv1394.c:2123:24:    right side has type int

Which looks like a real bug on a big-endian arch as it would set/clear
the wrong bit.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>

Bill Fink writes:

I finally got a chance to test the patch on my kernel, and live DV
viewing using xine still worked fine.  Although I admit to being
mystified how it works both before and after the patch, since the
cpu_to_le32() calls that were added should result in byte swapping on
PPC that wasn't being done before.  I guess that either the code paths
involved aren't actually being triggered by my xine DV viewing, or
there's some fortuitous palindromic setting of bits.

Tested-by: Bill Fink <billfink@mindspring.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2009-01-04 23:50:36 +01:00
Harvey Harrison
7d7039d365 ieee1394: dv1394: annotate frame input/output structs as little endian
No Functional changes.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2009-01-04 23:50:36 +01:00
Harvey Harrison
faf26bcc47 ieee1394: eth1394: trivial sparse annotations
Mostly annotations of ether_type as a be16.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2009-01-04 23:50:35 +01:00
Harvey Harrison
debb48063a ieee1394: mark bus_info_data as a __be32 array
Two access functions get_max_rom and set_hw_config_rom are
changed to take __be32 as well.  Only bus_info_data was
ever passed in so this is OK.  All other uses of bus_info_data
treated it as a be32 value already.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2009-01-04 23:50:35 +01:00
Harvey Harrison
a5e6f64dda ieee1394: replace CSR_SET_BUS_INFO_GENERATION macro
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2009-01-04 23:50:35 +01:00
Harvey Harrison
c816015860 ieee1394: pcilynx: trivial endian annotation
bus_info_block was treated as a be32 everywhere, annotate
as such.  Removes plenty of sparse warnings.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2009-01-04 23:50:34 +01:00
Stefan Richter
0bed181968 ieee1394: ignore nonzero Bus_Info_Block.max_rom, fetch config ROM in quadlets
It is already known that buggy firmwares exist which report a bogus
link_spd in their config ROM bus info block.  We now got the first
report of a bogus max_rom too (Freecom FireWire Hard Drive 1TB,
http://bugzilla.kernel.org/show_bug.cgi?id=12206).

I suspect other OSs only use quadlet reads to fetch the config ROM,
otherwise the firmware authors would have noticed their mistake.
Hence limit ieee1394's config ROM fetching routine to quadlets as the
safe minimum regardless of what the bus info block says.

This will potentially slow the bus reset handling by nodemgr somewhat
down.  But most existing devices support only quadlet reads anyway,
hence there will often be no actual difference to before this change.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2009-01-04 23:50:34 +01:00