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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>
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>
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>
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)
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>
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>
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>
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>
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>
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>
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>
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>
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>
For the common, open coded 'skb->mac.raw = skb->data' operation, so that we can
later turn skb->mac.raw into a offset, reducing the size of struct sk_buff in
64bit land while possibly keeping it as a pointer on 32bit.
This one touches just the most simple case, next will handle the slightly more
"complex" cases.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The networking subsystem has been converted from class_device to device
but ieee1394 hasn't. This results in a 100% reproducible NULL pointer
dereference if the ohci1394 driver module is unloaded while the eth1394
module is still loaded.
http://lkml.org/lkml/2006/11/16/147http://lkml.org/lkml/2007/3/14/4
This is a regression in 2.6.21-rc1.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Tested-by: Ismail Dönmez <ismail@pardus.org.tr>
After Al Viro (finally) succeeded in removing the sched.h #include in module.h
recently, it makes sense again to remove other superfluous sched.h includes.
There are quite a lot of files which include it but don't actually need
anything defined in there. Presumably these includes were once needed for
macros that used to live in sched.h, but moved to other header files in the
course of cleaning it up.
To ease the pain, this time I did not fiddle with any header files and only
removed #includes from .c-files, which tend to cause less trouble.
Compile tested against 2.6.20-rc2 and 2.6.20-rc2-mm2 (with offsets) on alpha,
arm, i386, ia64, mips, powerpc, and x86_64 with allnoconfig, defconfig,
allmodconfig, and allyesconfig as well as a few randconfigs on x86_64 and all
configs in arch/arm/configs on arm. I also checked that no new warnings were
introduced by the patch (actually, some warnings are removed that were emitted
by unnecessarily included header files).
Signed-off-by: Tim Schmielau <tim@physik3.uni-rostock.de>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This patch consolidates some bookkeeping for driver registering. It
closely models what pci_register_driver() does. The main addition is
that the owner of the driver is set, so we get a proper symlink
for /sys/bus/ieee1394/driver/*/module.
Also moves setting of name and bus type into nodemgr. Because of this,
we can remove the EXPORT_SYMBOL for ieee1394_bus_type, since it's now
only used in ieee1394.ko.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Replace all uses of kmem_cache_t with struct kmem_cache.
The patch was generated using the following script:
#!/bin/sh
#
# Replace one string by another in all the kernel sources.
#
set -e
for file in `find * -name "*.c" -o -name "*.h"|xargs grep -l $1`; do
quilt add $file
sed -e "1,\$s/$1/$2/g" $file >/tmp/$$
mv /tmp/$$ $file
quilt refresh
done
The script was run like this
sh replace kmem_cache_t "struct kmem_cache"
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Several u64 objects are derefernced in situations where the
pointer is not guarenteed to be aligned correctly. Use
get_unaligned() as needed.
Thanks to Will Simoneau for lots of testing and debugging
help.
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Remove unnecessary includes, add missing includes.
Use forward type declarations for some structs.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Ben Collins <bcollins@ubuntu.com>
This patch converts the combination of list_del(A) and list_add(A, B) to
list_move(A, B) under drivers/.
Acked-by: Corey Minyard <minyard@mvista.com>
Cc: Ben Collins <bcollins@debian.org>
Acked-by: Roland Dreier <rolandd@cisco.com>
Cc: Alasdair Kergon <dm-devel@redhat.com>
Cc: Gerd Knorr <kraxel@bytesex.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Frank Pavlic <fpavlic@de.ibm.com>
Acked-by: Matthew Wilcox <matthew@wil.cx>
Cc: Andrew Vasquez <linux-driver@qlogic.com>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Greg Kroah-Hartman <greg@kroah.com>
Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
...and __constant_ntohs, __constant_ntohl, __constant_cpu_to_be32 too
where possible. Htons and friends are resolved to constants in these
places anyway. Also fix an endianess glitch in a log message, spotted
by Alexey Dobriyan.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Ben Collins <bcollins@ubuntu.com>
Replace occurrences of the magic value ~(u64)0 for invalid
CSR address spaces by a named constant for better readability.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Ben Collins <bcollins@ubuntu.com>
Add support for the following types of hardware:
+ nodes that have a link speed < PHY speed
+ 1394b PHYs that are less than S800 capable
+ 1394b/1394a adapter cable between two 1394b PHYs
Also, S1600 and S3200 are now supported if IEEE1394_SPEED_MAX is raised.
A probing function is added to nodemgr's config ROM fetching routine
which adjusts the allowable speed if an access problem was encountered.
Pros and Cons of the approach:
+ minimum code footprint to support this less widely used hardware
+ nearly no overhead for unaffected hardware
- ineffective before nodemgr began to read the ROM of affected nodes
- ineffective if ieee1394 is loaded with disable_nodemgr=1
The speed map CSRs which are published to the bus are not touched by the
patch.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Cc: Hakan Ardo <hakan@debian.org>
Cc: Calculex <linux@calculex.com>
Cc: Robert J. Kosinski <robk@cmcherald.com>
Signed-off-by: Ben Collins <bcollins@ubuntu.com>
Their version information is not trustworthy.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Jody McIntyre <scjody@modernduck.com>
Work around limitation in rawiso routines. Required with 1394b cards on
architectures where PAGE_SIZE is 4096. Based on a previous patch by Ben
Collins.
Signed-off-by: Jody McIntyre <scjody@steamballoon.com>
Cc: Ben Collins <bcollins@debian.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Lots of this patch is trivial code cleanups (static vars were being
intialized to 0, etc).
There's also some fixes for ISO transmits (max buffer handling).
Aswell, we have a few fixes to disable IRM capabilites correctly. We've
also disabled, by default some generally unused EXPORT symbols for the
sake of cleanliness in the kernel. However, instead of removing them
completely, we felt it necessary to have a config option that allowed
them to be enabled for the many projects outside of the main kernel tree
that use our API for driver development.
The primary reason for this patch is to revert a MODE6->MODE10 RBC
conversion patch from the SCSI maintainers. The new conversions handled
directly in the scsi layer do not seem to work for SBP2. This patch
reverts to our old working code so that users can enjoy using Firewire
disks and dvd drives again.
We are working with the SCSI maintainers to resolve this issue outside
of the main kernel tree. We'll merge the patch once the SCSI layer's
handling of the MODE10 conversion is working for us.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
