Commit graph

382 commits

Author SHA1 Message Date
Carlos E. Ugarte
18b461796b ieee1394: fix to ether1394_tx in ether1394.c
This patch fixes a problem that occurs when packets cannot be sent across
the ieee1394 bus and we return NETDEV_TX_BUSY in the net driver "hard start
xmit" routine ether1394_tx. When we return NETDEV_TX_BUSY the stack will
call ether1394_tx again with the same skb. So we need to restore the header
to look like it did before we munged it for xmit over ieee1394.

[Stefan Richter: changed whitespace, deleted a local variable]

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-06-16 12:43:20 +02:00
Stefan Richter
d7794c8668 ieee1394: sbp2: offer SAM-conforming target port ID in sysfs
With "modprobe sbp2 long_ieee1394_id=y", the format of
/sys/bus/scsi/devices/*:*:*:*/ieee1394_id is changed from e.g.
0001041010004beb:0:0 to 0001041010004beb:00042c:0000.

The longer format fully conforms to object identifier sizes as per
SAM(-2...4) and reflects what the SAM target port identifier is meant to
contain:  A Discovery ID allegedly specified by ISO/IEC 13213:1994 ---
however there is no such thing; the authors of SAM probably meant
Directory ID).  Especially target nodes with multiple dynamically added
targets may use Directory IDs to persistently identify target ports.

The new format is independent of implementation details of nodemgr.
Thus the same ieee1394_id attribute format can be implemented in the new
firewire stack.

The ieee1394_id is typically used to create persistently named links in
/dev/disk/by-id.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-05-31 21:40:13 +02:00
Stefan Richter
a52938f3e2 ieee1394: fix calculation of sysfs attribute "address"
struct csr1212_keyval.offset is relative to 0xffff f000 0000 rather than
0xffff f000 0400.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-05-31 21:40:13 +02:00
Petr Vandrovec
976da96a5d ieee1394: raw1394: Fix async send
While playing with libiec61883 I've noticed that async_send is broken
because it was doing copy_from_user(...., packet->data_size) before
packet->data_size was set to any useful value.  It got broken when
packet->allocated_data_size got introduced, as hpsb_alloc_packet does
not set packet->data_size anymore.  (Regression in 2.6.22-rc1)

Signed-off-by: Petr Vandrovec <petr@vandrovec.name>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-05-27 23:21:00 +02:00
Stefan Richter
ef50a6c59d ieee1394: eth1394: bring back a parent device
This adds a real parent device to eth1394's ethX device like in Linux
2.6.20 and older.  However, due to unfinished conversion of the ieee1394
away from class_device, we now refer to the FireWire controller's PCI
device as the parent, not to the ieee1394 driver's fw-host device.

Having a real parent device instead of a virtual one allows udev scripts
to distinguish eth1394 interfaces from networking bridges, bondings and
the likes.

Fixes a regression since 2.6.21:
https://bugs.gentoo.org/show_bug.cgi?id=177199

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-05-27 23:20:59 +02:00
Stefan Richter
7a97bc03e0 ieee1394: eth1394: handle tlabel exhaustion
When eth1394 was unable to acquire a transaction label, it just dropped
outgoing packets without attempt to resend them later.

The transmit queue is now halted if no tlabel is available to
->hard_start_xmit().  A workqueue job is then scheduled to catch the
moment when ieee1394 recycled the next lot of tlabels.

Fixes http://bugzilla.kernel.org/show_bug.cgi?id=8402

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-05-27 23:20:59 +02:00
Stefan Richter
69c29fa7d1 ieee1394: eth1394: remove bogus netif_wake_queue
When we are within hard_start_xmit, the queue is already awake.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-05-27 23:20:58 +02:00
Stefan Richter
20e2008e1f ieee1394: sbp2: include workqueue.h
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-05-27 23:20:58 +02:00
Linus Torvalds
9b6a51746f Merge branch 'juju' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6
* 'juju' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6: (138 commits)
  firewire: Convert OHCI driver to use standard goto unwinding for error handling.
  firewire: Always use parens with sizeof.
  firewire: Drop single buffer request support.
  firewire: Add a comment to describe why we split the sg list.
  firewire: Return SCSI_MLQUEUE_HOST_BUSY for out of memory cases in queuecommand.
  firewire: Handle the last few DMA mapping error cases.
  firewire: Allocate scsi_host up front and allocate the sbp2_device as hostdata.
  firewire: Provide module aliase for backwards compatibility.
  firewire: Add to fw-core-y instead of assigning fw-core-objs in Makefile.
  firewire: Break out shared IEEE1394 constant to separate header file.
  firewire: Use linux/*.h instead of asm/*.h header files.
  firewire: Uppercase most macro names.
  firewire: Coding style cleanup: no spaces after function names.
  firewire: Convert card_rwsem to a regular mutex.
  firewire: Clean up comment style.
  firewire: Use lib/ implementation of CRC ITU-T.
  CRC ITU-T V.41
  firewire: Rename fw-device-cdev.c to fw-cdev.c and move header to include/linux.
  firewire: Future proof the iso ioctls by adding a handle for the iso context.
  firewire: Add read/write and size annotations to IOC numbers.
  ...

Acked-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-10 13:30:08 -07:00
Martin Schwidefsky
eeca7a36a8 [S390] Kconfig: refine depends statements.
Refine some depends statements to limit their visibility to the
environments that are actually supported.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-05-10 15:46:07 +02:00
Michael Opdenacker
59c51591a0 Fix occurrences of "the the "
Signed-off-by: Michael Opdenacker <michael@free-electrons.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2007-05-09 08:57:56 +02:00
Randy Dunlap
e63340ae6b header cleaning: don't include smp_lock.h when not used
Remove includes of <linux/smp_lock.h> where it is not used/needed.
Suggested by Al Viro.

Builds cleanly on x86_64, i386, alpha, ia64, powerpc, sparc,
sparc64, and arm (all 59 defconfigs).

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08 11:15:07 -07:00
Jean Delvare
6473d160b4 PCI: Cleanup the includes of <linux/pci.h>
I noticed that many source files include <linux/pci.h> while they do
not appear to need it. Here is an attempt to clean it all up.

In order to find all possibly affected files, I searched for all
files including <linux/pci.h> but without any other occurence of "pci"
or "PCI". I removed the include statement from all of these, then I
compiled an allmodconfig kernel on both i386 and x86_64 and fixed the
false positives manually.

My tests covered 66% of the affected files, so there could be false
positives remaining. Untested files are:

arch/alpha/kernel/err_common.c
arch/alpha/kernel/err_ev6.c
arch/alpha/kernel/err_ev7.c
arch/ia64/sn/kernel/huberror.c
arch/ia64/sn/kernel/xpnet.c
arch/m68knommu/kernel/dma.c
arch/mips/lib/iomap.c
arch/powerpc/platforms/pseries/ras.c
arch/ppc/8260_io/enet.c
arch/ppc/8260_io/fcc_enet.c
arch/ppc/8xx_io/enet.c
arch/ppc/syslib/ppc4xx_sgdma.c
arch/sh64/mach-cayman/iomap.c
arch/xtensa/kernel/xtensa_ksyms.c
arch/xtensa/platform-iss/setup.c
drivers/i2c/busses/i2c-at91.c
drivers/i2c/busses/i2c-mpc.c
drivers/media/video/saa711x.c
drivers/misc/hdpuftrs/hdpu_cpustate.c
drivers/misc/hdpuftrs/hdpu_nexus.c
drivers/net/au1000_eth.c
drivers/net/fec_8xx/fec_main.c
drivers/net/fec_8xx/fec_mii.c
drivers/net/fs_enet/fs_enet-main.c
drivers/net/fs_enet/mac-fcc.c
drivers/net/fs_enet/mac-fec.c
drivers/net/fs_enet/mac-scc.c
drivers/net/fs_enet/mii-bitbang.c
drivers/net/fs_enet/mii-fec.c
drivers/net/ibm_emac/ibm_emac_core.c
drivers/net/lasi_82596.c
drivers/parisc/hppb.c
drivers/sbus/sbus.c
drivers/video/g364fb.c
drivers/video/platinumfb.c
drivers/video/stifb.c
drivers/video/valkyriefb.c
include/asm-arm/arch-ixp4xx/dma.h
sound/oss/au1550_ac97.c

I would welcome test reports for these files. I am fine with removing
the untested files from the patch if the general opinion is that these
changes aren't safe. The tested part would still be nice to have.

Note that this patch depends on another header fixup patch I submitted
to LKML yesterday:
  [PATCH] scatterlist.h needs types.h
  http://lkml.org/lkml/2007/3/01/141

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Badari Pulavarty <pbadari@us.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-05-02 19:02:35 -07:00
Stefan Richter
bcfd09ee48 ieee1394: remove garbage from Kconfig
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-04-30 00:00:33 +02:00
Stefan Richter
3f94aa4d69 ieee1394: more help in Kconfig
- s/Device Drivers/Controllers/
  - clarify who needs pcilynx
  - don't recommend Y for raw1394; M is typically used

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-04-30 00:00:33 +02:00
Simon Arlott
749cf76620 ieee1394: ohci1394: Fix mistake in printk message.
Fix the "attempting to setting" message in ohci1394.

Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-04-30 00:00:32 +02:00
Bernhard Kauer
2ab7752469 ieee1394: ohci1394: remove unnecessary rcvPhyPkt bit flipping in LinkControl register
Remove the unneeded code that clears, sets and again clears the
rcvPhyPkt bit in the ohci1394 LinkControl register in ohci_initialize().

Signed-off-by: Bernhard Kauer <kauer@os.inf.tu-dresden.de>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-04-30 00:00:32 +02:00
Stefan Richter
c13596b0e5 ieee1394: ohci1394: fix cosmetic problem in error logging
If posted write failed, an "Unhandled interrupt(s) 0x00000100" message
was logged by mistake.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-04-30 00:00:32 +02:00
Stefan Richter
21b2c5647b ieee1394: eth1394: send async streams at S100 on 1394b buses
eth1394 did not work on buses consisting of S100B...S400B hardware
because it attempted to send GASP packets at S800.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-04-30 00:00:32 +02:00
Akinobu Mita
809e905ce7 ieee1394: eth1394: fix error path in module_init
This patch fixes some error handlings in eth1394:

- check return value of kmem_cache_create()
- cleanup resources if hpsb_register_protocol() fails

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> (whitespace)
2007-04-30 00:00:32 +02:00
Stefan Richter
fdc0092bfd ieee1394: eth1394: correct return codes in hard_start_xmit
This patch actually doesn't change anything because there was always 0
== NETDEV_TX_OK returned before.

TODO: Return NETDEV_TX_BUSY in error case and test in different error
conditions.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-04-30 00:00:32 +02:00
Stefan Richter
53f374e76c ieee1394: eth1394: hard_start_xmit is called in atomic context
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-04-30 00:00:32 +02:00
Stefan Richter
099398719b ieee1394: eth1394: some conditions are unlikely
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-04-30 00:00:32 +02:00
Stefan Richter
2e2173df68 ieee1394: eth1394: clean up fragment_overlap
offset > fi->offset + fi->len - 1  ==  !(offset < fi->offset + fi->len)
offset + len - 1 < fi->offset      ==  !(offset + len > fi->offset)
!(A || B)  ==  (!A && !B)

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-04-30 00:00:31 +02:00
Stefan Richter
01590d20b4 ieee1394: eth1394: don't use alloc_etherdev
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-04-30 00:00:31 +02:00
Stefan Richter
8a62bf7978 ieee1394: eth1394: omit useless set_mac_address callback
We can't reconfigure the MAC address, hence we don't need the callback.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-04-30 00:00:31 +02:00
Stefan Richter
599bba9647 ieee1394: eth1394: CONFIG_INET is always defined
because CONFIG_IEEE1394_ETH1394 depends on it.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-04-30 00:00:31 +02:00
Stefan Richter
17bab407d5 ieee1394: eth1394: allow MTU bigger than 1500
RFC 2734 says: "IP-capable nodes may operate with an MTU size larger
than the default [1500 octets], but the means by which a larger MTU is
configured are beyond the scope of this document."

Allow users to set an MTU bigger than 1500.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-04-30 00:00:31 +02:00
Adrian Bunk
f982e5ffcf ieee1394: unexport highlevel_host_reset
highlevel_host_reset no longer has any modular users.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-04-30 00:00:31 +02:00
Stefan Richter
246a5fdade ieee1394: eth1394: contain host reset
Call only eth1394's own host reset handler from .tx_timeout, not the
reset hooks of all other IEEE 1394 drivers.

A minor drawback of this patch is that ether1394_host_reset by timeout
is not serialized against ether1394_host_reset by bus reset.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-04-30 00:00:31 +02:00
Stefan Richter
5009d26961 ieee1394: eth1394: shorter error messages
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-04-30 00:00:31 +02:00
Stefan Richter
027611b842 ieee1394: eth1394: correct a memset argument
The old argument calculated the correct value in a wrong way.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-04-30 00:00:31 +02:00
Stefan Richter
d06c1ddad9 ieee1394: eth1394: refactor .probe and .update
Move common code into an extra function.  This implicitly adds a missing
node_info->fifo = CSR1212_INVALID_ADDR_SPACE; to .update.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-04-30 00:00:31 +02:00
Stefan Richter
5e7abccd38 ieee1394: eth1394: .probe and .update may sleep
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-04-30 00:00:30 +02:00
Stefan Richter
efbeccf174 ieee1394: eth1394: coding style
Adjust white space and line wraps.  Remove unnecessary parentheses and
braces, unused macros, and some of the more redundant comments.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-04-30 00:00:30 +02:00
Jean Delvare
09d7a96f5a ieee1394: eth1394: Move common recv_init code to helper function
There is some common code between ether1394_open and ether1394_add_host
which can be moved to a separate helper function for a slightly smaller
eth1394 driver (-160 bytes on i386.)

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-04-30 00:00:30 +02:00
Stefan Richter
70093cfde8 ieee1394: eth1394: don't autoload by hotplug when ohci1394 starts
Until now, ieee1394 put an IP-over-1394 capability entry into each new
host's config ROM.  As soon as the controller was initialized --- i.e.
right after modprobe ohci1394 --- this entry triggered a hotplug event
which typically caused auto-loading of eth1394.

This irritated or annoyed many users and distributors.  Of course they
could blacklist eth1394, but then ieee1394 wrongly advertized IP-over-
1394 capability to the FireWire bus.

Therefore
  - remove the offending kernel config option
    IEEE1394_CONFIG_ROM_IP1394,
  - let eth1394 add the ROM entry by itself, i.e. only after eth1394 was
    loaded.

This fixes http://bugzilla.kernel.org/show_bug.cgi?id=7793 .

To emulate the behaviour of older kernels, simply add the following to
to /etc/modprobe.conf:

install ohci1394 /sbin/modprobe eth1394; \
                 /sbin/modprobe --ignore-install ohci1394

Note, autoloading of eth1394 when an _external_ IP-over-1394 capable
device is discovered is _not_ affected by this patch.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-04-30 00:00:30 +02:00
Stefan Richter
e00f04a70f ieee1394: eth1394: reduce excessive function inlining
Shrinks eth1394.ko by about 5%.

Many of these functions have only one caller and are therefore auto-
inlined anyway.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-04-30 00:00:30 +02:00
Stefan Richter
2cd556ae61 ieee1394: eth1394: clean up host removal
ether1394_add_host() guarantees that hi->dev != NULL if hi != NULL.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-04-30 00:00:30 +02:00
Stefan Richter
157188cb54 ieee1394: eth1394: unregister address space in failure case
Warn if hpsb_allocate_and_register_addrspace() failed.
Unregister the address space if something else failed.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-04-30 00:00:30 +02:00
Stefan Richter
ea9057ad62 ieee1394: send async streams at S100
The comment says it all.  This affects only asynchronous streams sent
via raw1394; the eth1394 driver has own code and needs an own fix.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-04-30 00:00:30 +02:00
Milind Arun Choudhary
df18ce85de ieee1394: SPIN_LOCK_UNLOCKED cleanup
SPIN_LOCK_UNLOCKED cleanup,use DEFINE_SPINLOCK instead

Signed-off-by: Milind Arun Choudhary <milindchoudhary@gmail.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-04-30 00:00:30 +02:00
Stefan Richter
9be51c5d78 ieee1394: nodemgr: unify some error messages
Shrinks object file size a little bit.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-04-30 00:00:30 +02:00
Stefan Richter
9324547235 ieee1394: nodemgr: less noise in dmesg
Everytime when eth1394 or a libraw1394 client updates the configuration
ROM, a certain sysfs attribute cannot be added since it already exists.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-04-30 00:00:29 +02:00
Stefan Richter
d4c60085a9 ieee1394: unroll a weird macro
This is a coding style touch-up for ieee1394's handle_incoming_packet().

A preprocessor macro contained hardwired variable names and, even worse,
the 'break' keyword.  This macro is now unrolled and removed.

Also, all 'break's which had the effect of a return are replaced by
return.  And a FIXME comment is brought up to date.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-04-30 00:00:29 +02:00
Andrew Morton
b9e5eb067b ieee1394: iso.c needs sched.h
alpha:

drivers/ieee1394/iso.c: In function 'hpsb_iso_xmit_sync':
drivers/ieee1394/iso.c:440: error: invalid use of undefined type 'struct task_struct'
drivers/ieee1394/iso.c:440: error: 'TASK_INTERRUPTIBLE' undeclared (first use in this function)
drivers/ieee1394/iso.c:440: error: (Each undeclared identifier is reported only once
drivers/ieee1394/iso.c:440: error: for each function it appears in.)
drivers/ieee1394/iso.c:440: warning: implicit declaration of function 'signal_pending'
drivers/ieee1394/iso.c:440: error: invalid use of undefined type 'struct task_struct'
drivers/ieee1394/iso.c:440: warning: implicit declaration of function 'schedule'
drivers/ieee1394/iso.c: In function 'hpsb_iso_wake':
drivers/ieee1394/iso.c:562: error: 'TASK_INTERRUPTIBLE' undeclared (first use in this function)

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> (brought into alphabetic order)
2007-04-30 00:00:29 +02:00
Stefan Richter
9543a931dc ieee1394: some more includes
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-04-30 00:00:29 +02:00
Torsten Kaiser
3a23a81e83 ieee1394: ieee1394_transactions needs sched.h
drivers/ieee1394/ieee1394_transactions.c fails for me if CONFIG_SMP=n

gcc complains:
  CC      drivers/ieee1394/ieee1394_transactions.o
drivers/ieee1394/ieee1394_transactions.c: In function 'hpsb_get_tlabel':
drivers/ieee1394/ieee1394_transactions.c:183: error:
'TASK_INTERRUPTIBLE' undeclared (first use in this function)
drivers/ieee1394/ieee1394_transactions.c:183: error: (Each undeclared
identifier is reported only once

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> (added comment)
2007-04-30 00:00:29 +02:00
Randy Dunlap
504945c9c6 ieee1394: ieee1394_core printk format
Fix printk format string:
drivers/ieee1394/ieee1394_core.c:702: warning: format '%d' expects type 'int', but argument 2 has type 'size_t'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-04-30 00:00:29 +02:00
Stefan Richter
7542e0e696 ieee1394: remove usage of skb_queue as packet queue
This considerably reduces the memory requirements for a packet and
eliminates ieee1394's dependency on CONFIG_NET.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-04-30 00:00:29 +02:00