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path: root/drivers/ieee1394/nodemgr.c
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* Remove obsolete #include <linux/config.h>Jörn Engel2006-06-30
| | | | | Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* [PATCH] ieee1394: nodemgr: do not peek into struct semaphoreStefan Richter2006-06-25
| | | | | | | | | | | Also revert patch "frv: ieee1394 is borken on frv", as it no longer is. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Cc: David Howells <dhowells@redhat.com> Cc: Jody McIntyre <scjody@modernduck.com> Cc: Ben Collins <bcollins@ubuntu.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* ieee1394: support for slow links or slow 1394b phy portsBen Collins2006-06-12
| | | | | | | | | | | | | | | | | | | | | | | | 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>
* Merge with http://kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.gitJody McIntyre2006-01-05
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| * [PATCH] driver core: replace "hotplug" by "uevent"Kay Sievers2006-01-04
| | | | | | | | | | | | | | | | | | Leave the overloaded "hotplug" word to susbsystems which are handling real devices. The driver core does not "plug" anything, it just exports the state to userspace and generates events. Signed-off-by: Kay Sievers <kay.sievers@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * ieee1394: write broadcast_channel only to select nodes (fixes device ↵Stefan Richter2005-12-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | recognition) Some old 1394-1995 SBP-2 bridges would hang if they received a broadcast write request to BROADCAST_CHANNEL before the config ROM was read. Affected devices include Datafab MD2-FW2 2.5" HDD and SmartDisk VST FWCDRW-V8 portable CD writer. The write request is now directed to specific nodes instead of being broadcast to all nodes at once, and it is only performed if a previous read request at this register succeeded. Fixes an old interoperability problem which was perceived as a 2.6.14-specific regression: http://marc.theaimsgroup.com/?t=113190586800003 Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by: Jody McIntyre <scjody@modernduck.com> (cherry picked from 61c7f775ca25ccfc0e51486103a724fb1a3a08f2 commit)
| * ieee1394: resume remote ports when starting a host (fixes device recognition)Stefan Richter2005-12-12
| | | | | | | | | | | | | | | | | | | | | | | | | | After initializing an IEEE 1394 host, broadcast a resume packet. This makes remote nodes visible which suspended their ports while the host was down. Such nodes had to be unplugged and replugged in order to be recognized. Motorola DCT6200 cable reciever was affected, probably other devices too. http://marc.theaimsgroup.com/?t=113202715800001 Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by: Jody McIntyre <scjody@modernduck.com> (cherry picked from 14c0fa243b358c24040ff5f44b60c47aaf6430c3 commit)
* | ieee1394: run high-level updates before high-level probesStefan Richter2005-12-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | After a bus reset, let nodemgr call high-level update hooks first for nodes which do not need to be probed. The main benefit is for a bus with more than one SBP-2 device: SBP-2 reconnects will be performed before SBP-2 logins, thus have a much higher chance to succeed, and their SCSI devices will not be blocked much longer than necessary. This was demonstrated for Linux 2.4 by Dave Cinege a while ago. A better approach would be to perform time-consuming probes in parallel by a subthread. I actually plan to implement this for sbp2 but it may take a while to get that done and tested. Until then, this tweak is a huge improvement for users with multiple SBP-2 devices. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by: Jody McIntyre <scjody@modernduck.com>
* | ieee1394: write broadcast_channel only to select nodes (fixes device ↵Stefan Richter2005-12-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | recognition) Some old 1394-1995 SBP-2 bridges would hang if they received a broadcast write request to BROADCAST_CHANNEL before the config ROM was read. Affected devices include Datafab MD2-FW2 2.5" HDD and SmartDisk VST FWCDRW-V8 portable CD writer. The write request is now directed to specific nodes instead of being broadcast to all nodes at once, and it is only performed if a previous read request at this register succeeded. Fixes an old interoperability problem which was perceived as a 2.6.14-specific regression: http://marc.theaimsgroup.com/?t=113190586800003 Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by: Jody McIntyre <scjody@modernduck.com>
* | ieee1394: add definitions for phy packet constantsStefan Richter2005-12-01
| | | | | | | | | | | | | | | | Introduce new macros related to phy packets and use them in ieee1394_core and nodemgr. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by: Jody McIntyre <scjody@modernduck.com>
* | ieee1394: resume remote ports when starting a host (fixes device recognition)Stefan Richter2005-12-01
| | | | | | | | | | | | | | | | | | | | | | | | After initializing an IEEE 1394 host, broadcast a resume packet. This makes remote nodes visible which suspended their ports while the host was down. Such nodes had to be unplugged and replugged in order to be recognized. Motorola DCT6200 cable reciever was affected, probably other devices too. http://marc.theaimsgroup.com/?t=113202715800001 Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by: Jody McIntyre <scjody@modernduck.com>
* | kmalloc/kzalloc changes:Stefan Richter2005-11-07
|/ | | | | | | | | | dv1394, eth1394, ieee1394, ohci1394, pcilynx, raw1394, sbp2c, video1394: - use kzalloc - provide safer size arguments to kmalloc and kzalloc - omit some casts Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by: Jody McIntyre <scjody@modernduck.com>
* [PATCH] DRIVER MODEL: Get rid of the obsolete tri-level suspend/resume callbacksRussell King2005-10-28
| | | | | | | | | | | | | | | | In PM v1, all devices were called at SUSPEND_DISABLE level. Then all devices were called at SUSPEND_SAVE_STATE level, and finally SUSPEND_POWER_DOWN level. However, with PM v2, to maintain compatibility for platform devices, I arranged for the PM v2 suspend/resume callbacks to call the old PM v1 suspend/resume callbacks three times with each level in order so that existing drivers continued to work. Since this is obsolete infrastructure which is no longer necessary, we can remove it. Here's an (untested) patch to do exactly that. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] ieee1394: skip unnecessary pause when scanning config ROMsJody McIntyre2005-09-30
| | | | | | | | | | | | Skip a superfluous pause that occured when the config ROM of a node was scanned unsuccessfully. This also occurs if a node without link wrongly enables its "link active" self ID flag. A GWCTech 6-port hub does this. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> 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>
* [PATCH] ieee1394: reorder activities after bus reset (fixes device detection)Jody McIntyre2005-09-30
| | | | | | | | | | | | | | Units were not detected if the local IRM performed a bus reset. ("The root node is not cycle master capable; selecting a new root node and resetting...", often seen with iPods and other SBP-2 devices). Rearrange the order of IRM duties and node scanning. TODO: Audit the ROM caching and parsing code for underlying issues. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> 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>
* [PATCH] provide MODALIAS= enviroment variable to autoload ieee1394 modules ↵Olaf Hering2005-09-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | via udev https://bugzilla.novell.com/show_bug.cgi?id=103746 Old 2.6.13 hotplug enviroment for 'plug in firewire disk' event: ==> debug.01139.ieee1394.add.8211 <== set -- ieee1394 UDEV_LOG='7' ACTION='add' DEVPATH='/class/ieee1394/00010410100036e0-0' SUBSYSTEM='ieee1394' SEQNUM='1139' PHYSDEVPATH='/devices/pci0001:10/0001:10:0d.0/0001:11:0a.0/fw-host0/00010410100036e0/00010410100036e0-0' PHYSDEVBUS='ieee1394' VENDOR_ID='000000' MODEL_ID='001010' GUID='00010410100036e0' SPECIFIER_ID='00609e' VERSION='010483' UDEVD_EVENT='1' Module spb2 is not loaded. grep sbp2 /lib/modules/2.6.13-20050901172817-default/modules.alias alias ieee1394:ven*mo*sp0000609Ever00010483* sbp2 printf 'ieee1394:ven%08Xmo%08Xsp%08Xver%08X\n' '0x000000' '0x001010' '0x00609e' '0x010483' ieee1394:ven00000000mo00001010sp0000609Ever00010483 modprobe -v ieee1394:ven00000000mo00001010sp0000609Ever00010483 insmod /lib/modules/2.6.13-20050901172817-default/kernel/drivers/ieee1394/sbp2.ko Providing a MODALIAS= enviroment variable with the content above will fix it. Signed-off-by: Olaf Hering <olh@suse.de> Cc: Ben Collins <bcollins@debian.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Sync up ieee-1394Ben Collins2005-07-10
| | | | | | | | | | | | | | | | | | | | | | | | | 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>
* [PATCH] Cleanup patch for process freezingChristoph Lameter2005-06-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 1. Establish a simple API for process freezing defined in linux/include/sched.h: frozen(process) Check for frozen process freezing(process) Check if a process is being frozen freeze(process) Tell a process to freeze (go to refrigerator) thaw_process(process) Restart process frozen_process(process) Process is frozen now 2. Remove all references to PF_FREEZE and PF_FROZEN from all kernel sources except sched.h 3. Fix numerous locations where try_to_freeze is manually done by a driver 4. Remove the argument that is no longer necessary from two function calls. 5. Some whitespace cleanup 6. Clear potential race in refrigerator (provides an open window of PF_FREEZE cleared before setting PF_FROZEN, recalc_sigpending does not check PF_FROZEN). This patch does not address the problem of freeze_processes() violating the rule that a task may only modify its own flags by setting PF_FREEZE. This is not clean in an SMP environment. freeze(process) is therefore not SMP safe! Signed-off-by: Christoph Lameter <christoph@lameter.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Driver Core: drivers/i2c/chips/w83781d.c - ↵Yani Ioannou2005-06-20
| | | | | | | drivers/s390/block/dcssblk.c: update device attribute callbacks Signed-off-by: Yani Ioannou <yani.ioannou@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] Use device_for_each_child() to unregister devices in ↵gregkh@suse.de2005-06-20
| | | | | | | | nodemgr_remove_host_dev() Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> diff -Nru a/drivers/ieee1394/nodemgr.c b/drivers/ieee1394/nodemgr.c
* [PATCH] ieee1394: remove NULL checks for kfreeJody McIntyre2005-05-17
| | | | | | | | | | This patch removes redundant NULL pointer checks before kfree() in all of drivers/ieee1394/ Signed-off-by: Jesper Juhl <juhl-lkml@dif.dk> Signed-off-by: Jody McIntyre <scjody@steamballoon.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Linux-2.6.12-rc2v2.6.12-rc2Linus Torvalds2005-04-16
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!
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