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GIT 1e56c106f0879872f6f2426b533ca5bfb712bb5b git+ssh://master.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6.git
commit 1e56c106f0879872f6f2426b533ca5bfb712bb5b
Author: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Mon Aug 20 21:58:30 2007 +0200
firewire: fw-ohci: log posted write errors
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
commit 95ea4f3877086febb49111950c88c0346debf21d
Author: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Mon Aug 20 21:41:22 2007 +0200
firewire: fw-ohci: reorder includes
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
commit 48b797fa451d57b34270a0a8b839ad6fc1e42840
Author: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Mon Aug 20 21:40:30 2007 +0200
firewire: fw-ohci: fix includes
Add used includes, remove unused includes.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
commit ff8a2c410630d25bbc53ae82f76001993a6af023
Author: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Sat Aug 25 14:08:19 2007 +0200
firewire: fw-ohci: enforce read order for selfID generation
It seems unlikely, but access to self_id_cpu[0] could at least in theory
be deferred until after the loop over self_id_cpu[1..n] or even after
the subsequent reg_read. Enforce the desired order by a read barrier.
Also prevent the reg_read from being reordered relative to the for loop.
This isn't necessary if the loop's conditional printk counts as an
implicit barrier, but better make it explicit.
(self_id_cpu[] is a coherent DMA buffer.)
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
commit 6c314f0edf49fece250382e2220e65960b5bbe21
Author: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Sun Aug 12 12:51:18 2007 +0200
firewire: fw-sbp2: use an own workqueue (fix system responsiveness)
Firewire-sbp2 did very uncooperative things in the kernel's shared
workqueue: Sleeping until reception of management status from the
target for up to 2 seconds, and performing SCSI inquiry and all of the
setup of SCSI command set drivers via scsi_add_device. If there were
transient or permanent error conditions, this caused long blockage of
the kernel's events process, noticeable e.g. by blocked keyboard input.
We now allocate a workqueue process exclusive to fw-sbp2. As a side
effect, this also increases parallelism of fw-sbp2's login and reconnect
work versus fw-core's device discovery and device update work which is
performed in the shared workqueue.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
commit 3f9d5a5152a1561c2fb80445227374c07dbce842
Author: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Mon Aug 13 17:48:25 2007 +0200
firewire: fw-sbp2: expose module parameter for workarounds
On rare occasions, the ability to set one of the workaround flags at
runtime may save the day.
People who experience I/O errors with firewire-sbp2 while the old sbp2
driver worked for them should try workarounds=1 and report to the devel
mailinglist whether that improves things. Firewire-sbp2 defaults to the
SCSI stack's maximum transfer size per command, while sbp2 limits them
to 128 kBytes. Flag 1 accomplishes just that.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
commit 07fcbcaf01d69a8ce20e6b9722a72f0943bca9d3
Author: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Sat Aug 25 14:05:28 2007 +0200
firewire: fw-sbp2: add support for multiple logical units per target
Fixes "New firewire stack only recognizing half of a chain of drives",
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=242254
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
commit ec8d5dc0e1967445964298c07612215c9b1ddd6e
Author: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Sat Aug 25 10:40:42 2007 +0200
firewire: fw-sbp2: always enable IRQs before calling command ORB callback
On IOMMU-less noncoherent architectures, orb->callback will memcpy the
whole SCSI command buffer for READ-like SCSI commands. It is therefore
friendlier to enable IRQs before the call, like before patch "Add
ref-counting for sbp2 orbs".
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
commit ba57dc0ea32c276cd07c83993b99546be862c699
Author: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Fri Aug 3 20:56:31 2007 +0200
firewire: fw-core: local variable shadows a global one
Sparse warned about it although it was apparently harmless:
drivers/firewire/fw-cdev.c:624:23: warning: symbol 'interrupt' shadows an earlier one
include/asm/hw_irq.h:29:13: originally declared here
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
commit c5cf4a73611a91c91f0761596d19a37d772d2182
Author: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Tue Jul 17 02:10:16 2007 +0200
firewire: optimize fw_core_add_address_handler
Potentially avoids unnecessary loop runs.
Guarantee quadlet-aligned starts of address regions.
Document the return values.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
commit 3743cc44c82342e744aa564f27c3e1fdd74ba3d0
Author: Kristian Høgsberg <krh@redhat.com>
Date: Tue Jun 5 19:27:05 2007 -0400
firewire: Fix pci resume to not pass in a __be32 config rom.
The ohci_enable() function shared between pci_probe and pci_resume
takes a host endian config rom, but ohci->config_rom is __be32. This
sets up the config rom in the wrong endian on little endian machine,
specifically, BusOptions will be initialized to a 0 max receive size.
This patch changes the way we reuse the config rom so that we avoid
this problem.
Signed-off-by: Kristian Hoegsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
commit 6dc2aad465cc074bbe68e2e84b89a22428dc80c3
Author: Satyam Sharma <satyam@infradead.org>
Date: Wed Aug 15 20:05:38 2007 +0530
ieee1394: Fix kthread stopping in nodemgr_host_thread
The nodemgr host thread can exit on its own even when kthread_should_stop
is not true, on receiving a signal (might never happen in practice, as
it ignores signals). But considering kthread_stop() must not be mixed with
kthreads that can exit on their own, I think changing the code like this
is clearer. This change means the thread can cut its sleep short when
receive a signal but looking at the code around, that sounds okay (and
again, it might never actually recieve a signal in practice).
Signed-off-by: Satyam Sharma <satyam@infradead.org>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
commit 20b5cd8637514b6f5b4961a4360013ad519432eb
Author: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Sat Aug 11 11:52:08 2007 +0200
ieee1394: sbp2: fix unsafe iteration over list of devices
sbp2_host_reset and sbp2_handle_status_write are not serialized against
sbp2_alloc_device and sbp2_remove_device.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
commit bca76d2f599125f169375e4a7300e8c22532f75a
Author: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Sun Jul 29 00:01:35 2007 +0200
ieee1394: pcilynx: superfluous local variables
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
commit b8ebfcfe1499644b7bd0144ddb4c3ef5362f617c
Author: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Sat Jul 28 23:45:03 2007 +0200
ieee1394: eth1394: fix lock imbalance
bad_proto can be reached from points which did not take priv->lock.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
commit 2f2bda15d415132132517e242442367b33ca0890
Author: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Sat Jul 28 23:44:25 2007 +0200
ieee1394: eth1394: superfluous local variable
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
commit 5ac0464c61124914166e260404f1b9b98f5decb7
Author: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Sat Aug 25 17:27:14 2007 +0200
roll back to origin
commit 6ed8a4627fbbc94d8176d31470054a566b43c4d0
Author: Satyam Sharma <satyam@infradead.org>
Date: Wed Aug 15 20:05:38 2007 +0530
ieee1394: Fix kthread stopping in nodemgr_host_thread
The nodemgr host thread can exit on its own even when kthread_should_stop
is not true, on receiving a signal (might never happen in practice, as
it ignores signals). But considering kthread_stop() must not be mixed with
kthreads that can exit on their own, I think changing the code like this
is clearer. This change means the thread can cut its sleep short when
receive a signal but looking at the code around, that sounds okay (and
again, it might never actually recieve a signal in practice).
Signed-off-by: Satyam Sharma <satyam@infradead.org>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
commit 585e9c455ac48003d932c2ed8f0c06106b8ee123
Author: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Wed Aug 15 21:44:51 2007 +0200
firewire: fw-sbp2: expose module parameter for workarounds, amendment
Reduce nesting depth. Will be rolled into
549b7b036d091a114ccfbc5e90b39970df54b5a3 when pushed upstream.
commit 98e0b80c3369bf3e415a503d0705edc5eadd4742
Author: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Sun Aug 12 12:51:18 2007 +0200
firewire: fw-sbp2: use an own workqueue (fix system responsiveness)
Firewire-sbp2 did very uncooperative things in the kernel's shared
workqueue: Sleeping until reception of management status from the
target for up to 2 seconds, and performing SCSI inquiry and all of the
setup of SCSI command set drivers via scsi_add_device. If there were
transient or permanent error conditions, this caused long blockage of
the kernel's events process, noticeable e.g. by blocked keyboard input.
We now allocate a workqueue process exclusive to fw-sbp2. As a side
effect, this also increases parallelism of fw-sbp2's login and reconnect
work versus fw-core's device discovery and device update work which is
performed in the shared workqueue.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
commit 549b7b036d091a114ccfbc5e90b39970df54b5a3
Author: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Sun Aug 12 12:51:18 2007 +0200
firewire: fw-sbp2: expose module parameter for workarounds
On rare occasions, the ability to set one of the workaround flags at
runtime may save the day.
People who experience I/O errors with firewire-sbp2 while the old sbp2
driver worked for them should try workarounds=1 and report to the devel
mailinglist whether that improves things. Firewire-sbp2 defaults to the
SCSI stack's maximum transfer size per command, while sbp2 limits them
to 128 kBytes. Flag 1 accomplishes just that.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
commit b911abe15da18ba4fe4a40239dadd2dcf9dcf705
Author: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Sat Aug 11 11:52:08 2007 +0200
ieee1394: sbp2: fix unsafe iteration over list of devices
sbp2_host_reset and sbp2_handle_status_write are not serialized against
sbp2_alloc_device and sbp2_remove_device.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
commit 3cdafc2494f6d07a974c6566d7a0c34fdb6027a8
Author: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Sat Aug 11 11:51:16 2007 +0200
ieee1394: sbp2: fix sbp2_remove_device for error cases
Bug found by Olaf Hering <olh@suse.de>:
sbp2util_remove_command_orb_pool requires a valid lu->hi pointer.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
commit ce72b81c6049f0969832ff3f604f12ddd9d68cd4
Author: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Sun Aug 12 13:20:25 2007 +0200
firewire: fw-sbp2: add support for multiple logical units per target, amendment
Keep printing firmware_revision in dmesg, rather than
firmware_revision & 0xffffff00.
Will be rolled into the previous commit when pushed upstream.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
commit 9166079a38d292f45ba59fe293c1ffaf11d0d56f
Author: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Sat Aug 4 15:54:58 2007 +0200
firewire: fw-sbp2: add support for multiple logical units per target
Fixes "New firewire stack only recognizing half of a chain of drives",
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=242254
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
commit 24f667e69f9493bfc09398d9149d998cf329afe9
Author: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Tue Jul 17 02:10:16 2007 +0200
firewire: optimize fw_core_add_address_handler
Potentially avoids unnecessary loop runs.
Guarantee quadlet-aligned starts of address regions.
Document the return values.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
commit 12a2f56154610b63d06fe902db0783ceb44bcc4e
Author: Kristian Høgsberg <krh@redhat.com>
Date: Tue Jun 5 19:27:05 2007 -0400
firewire: Fix pci resume to not pass in a __be32 config rom.
The ohci_enable() function shared between pci_probe and pci_resume
takes a host endian config rom, but ohci->config_rom is __be32. This
sets up the config rom in the wrong endian on little endian machine,
specifically, BusOptions will be initialized to a 0 max receive size.
This patch changes the way we reuse the config rom so that we avoid
this problem.
Signed-off-by: Kristian Hoegsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
commit bad1bfb50d0f13d1f07f9973517a898a5e192e3d
Author: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Fri Aug 3 20:56:31 2007 +0200
firewire: fw-core: local variable shadows a global one
Sparse warned about it although it was apparently harmless:
drivers/firewire/fw-cdev.c:624:23: warning: symbol 'interrupt' shadows an earlier one
include/asm/hw_irq.h:29:13: originally declared here
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
commit da9f857d30b890ff9d22bab72baf653d4875236f
Author: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Sat Aug 4 19:07:42 2007 +0200
roll back last firewire commits
commit 619111d849ac2ef32123f71eb9af71b39a465c9a
Author: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Thu Aug 2 20:13:13 2007 +0200
Revert "firewire: fw-core: shrink the init function"
This reverts commit a2354f71f88568c2fb295664c6a80d89b93324bb.
commit 6ad42edd81e948e2f3278d0d3e5f4a36f83eca3c
Author: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Wed Aug 1 20:30:36 2007 +0200
ieee1394: revert "sbp2: enforce 32bit DMA mapping"
Revert commit 0555659d63c285ceb7ead3115532e1b71b0f27a7 from 2.6.22-rc1.
The dma_set_mask call somehow failed on a PowerMac G5, PPC64:
http://lkml.org/lkml/2007/8/1/344
Should there ever occur a DMA mapping beyond the physical DMA range, a
proper SBP-2 firmware will report transport errors. So let's leave it
at that.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Tested-by: Olaf Hering <olh@suse.de>
commit a3d08165feaefb8bd5b294d5f464e30b904566a0
Author: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Sun Jul 29 00:01:35 2007 +0200
ieee1394: pcilynx: superfluous local variables
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
commit 05495f9042c5aeed5d17f29531bc637e75c399f0
Author: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Sat Jul 28 23:45:03 2007 +0200
ieee1394: eth1394: fix lock imbalance
bad_proto can be reached from points which did not take priv->lock.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
commit 9fc5fd1a634bf3ddb2bfc077b341d044e2b666de
Author: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Sat Jul 28 23:44:25 2007 +0200
ieee1394: eth1394: superfluous local variable
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
commit a2354f71f88568c2fb295664c6a80d89b93324bb
Author: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Sun Jul 29 20:40:04 2007 +0200
firewire: fw-core: shrink the init function
by 208 bytes on x86-64, 112 bytes on i586.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
commit 52c32d15ad031b8a3d8e5e119792609a6721d47d
Author: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Sun Jul 29 20:40:04 2007 +0200
firewire: fw-core: make two variables static
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
commit ab0f04efa6fa31b485424e28a3661ce764194367
Author: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Thu Jul 26 01:43:40 2007 +0200
firewire: fw-sbp2: remove some log messages
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
commit ed6a36016077d831b92f8a775f340a96aa4960f5
Author: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Sun Jul 29 19:40:07 2007 +0200
firewire: fw-sbp2: add support for multiple logical units per target
This makes multiple logical units on a single target accessible to
fw-sbp2. Successfully tested with the IOI FWB-IDE01AB dual LU bridge.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
commit a8b974f5e01aba031a767a28616d439bb5be94cd
Author: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Sun Jul 29 03:04:15 2007 +0200
firewire: fw-sbp2: split logical unit data from target data
struct sbp2_device is replaced by struct sbp2_target and struct
sbp2_logical_unit. This prepares support of multiple logical units per
target.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
commit a2fb3f0b42e9d0012fe0036b8f8d4371ba4b858b
Author: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Sun Jul 29 03:03:07 2007 +0200
firewire: fw-sbp2: use one Scsi_Host for all targets
This rework prepares support of multiple logical units per target.
Instead of one instance of struct Scsi_Host per target, only one
Scsi_Host global to fw-sbp2 is now used. We could also use one
Scsi_Host per FireWire host, but that would add more overhead for no
real benefit.
The following user-visible changes result:
- The generic device of the Scsi_Host is registered as a platform
device. Hence it and the target devices and logical unit devices
will be sitting below /sys/devices/platform/host*/ rather than
within the PCI devices tree.
- In the SCSI stack's H:C:T:L tuple, the H is now constant for all
fw-sbp2 devices but the T is unique. We currently allocate T as
stupidly as the H was allocated before: It is simply increased
whenever a target is added.
Neither of these changes should affect userspace, because none of the
mentioned device properties have been of any interest to userspace
before.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
commit 1fbbb13a05fdc8cf8e778aa834d2e31e68193ee4
Author: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Thu Jul 26 01:38:39 2007 +0200
firewire: remove unused macros
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
commit d9b6313c4d390dc6f4388c07d40ce0d606258458
Author: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Sun Jul 29 01:50:37 2007 +0200
firewire: fw-sbp2: sanitize list handling
- The ORB list iteration unsafely removed list items under itself.
- The "ORB found" logic relied on implementation details of
list_for_each_entry and was unreadable.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
commit 644f24f97935b8de286eb6f6e6a2e67251958ce0
Author: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Wed Jul 25 19:18:08 2007 +0200
firewire: fw-ohci: dma_free_coherent needs IRQs enabled
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
commit 5b402b97b6f98823f5950ca61d850f552ff042c9
Author: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Sat Jul 21 22:43:05 2007 +0200
firewire: fw-sbp2: set correct maximum payload (fixes CardBus adapters)
As far as I know, all CardBus FireWire 400 adapters have a maximum
payload of 1024 bytes which is less than the speed-dependent limit of
2048 bytes. Fw-sbp2 has to take the host adapter's limit into account.
This apparently fixes Juju's incompatibility with my CardBus cards, a
NEC based card and a VIA based card.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
commit 4e7210a2d7eac65134bcb340bd3814e5adba2c1d
Author: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Sat Jul 21 17:51:22 2007 +0200
ieee1394: sbp2: more correct Kconfig dependencies
Make the option SBP2_PHYS_DMA available on all architectures where it
compiles. This includes x86-64 where I runtime-tested it successfully.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
commit 62d8f1e2e8efadb6d8f7d9c802adebef98c0081e
Author: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Tue Jul 17 02:10:16 2007 +0200
firewire: optimize fw_core_add_address_handler
Potentially avoids unnecessary loop runs.
Guarantee quadlet-aligned starts of address regions.
Document the return values.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
commit ccfab837384b2f125a2d1c179caf70032cbaecc8
Author: Kristian Høgsberg <krh@redhat.com>
Date: Tue Jun 5 19:27:05 2007 -0400
firewire: Fix pci resume to not pass in a __be32 config rom.
The ohci_enable() function shared between pci_probe and pci_resume
takes a host endian config rom, but ohci->config_rom is __be32. This
sets up the config rom in the wrong endian on little endian machine,
specifically, BusOptions will be initialized to a 0 max receive size.
This patch changes the way we reuse the config rom so that we avoid
this problem.
Signed-off-by: Kristian Hoegsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
drivers/firewire/fw-cdev.c | 21
drivers/firewire/fw-device.h | 5
drivers/firewire/fw-ohci.c | 66 +-
drivers/firewire/fw-sbp2.c | 655 ++++++++++++++++------------
drivers/firewire/fw-transaction.c | 12
drivers/ieee1394/eth1394.c | 16
drivers/ieee1394/nodemgr.c | 3
drivers/ieee1394/pcilynx.c | 3
drivers/ieee1394/sbp2.c | 15
9 files changed, 474 insertions(+), 322 deletions(-)
diff -puN drivers/firewire/fw-cdev.c~git-ieee1394 drivers/firewire/fw-cdev.c
--- a/drivers/firewire/fw-cdev.c~git-ieee1394
+++ a/drivers/firewire/fw-cdev.c
@@ -621,20 +621,19 @@ iso_callback(struct fw_iso_context *cont
size_t header_length, void *header, void *data)
{
struct client *client = data;
- struct iso_interrupt *interrupt;
+ struct iso_interrupt *irq;
- interrupt = kzalloc(sizeof(*interrupt) + header_length, GFP_ATOMIC);
- if (interrupt == NULL)
+ irq = kzalloc(sizeof(*irq) + header_length, GFP_ATOMIC);
+ if (irq == NULL)
return;
- interrupt->interrupt.type = FW_CDEV_EVENT_ISO_INTERRUPT;
- interrupt->interrupt.closure = client->iso_closure;
- interrupt->interrupt.cycle = cycle;
- interrupt->interrupt.header_length = header_length;
- memcpy(interrupt->interrupt.header, header, header_length);
- queue_event(client, &interrupt->event,
- &interrupt->interrupt,
- sizeof(interrupt->interrupt) + header_length, NULL, 0);
+ irq->interrupt.type = FW_CDEV_EVENT_ISO_INTERRUPT;
+ irq->interrupt.closure = client->iso_closure;
+ irq->interrupt.cycle = cycle;
+ irq->interrupt.header_length = header_length;
+ memcpy(irq->interrupt.header, header, header_length);
+ queue_event(client, &irq->event, &irq->interrupt,
+ sizeof(irq->interrupt) + header_length, NULL, 0);
}
static int ioctl_create_iso_context(struct client *client, void *buffer)
diff -puN drivers/firewire/fw-device.h~git-ieee1394 drivers/firewire/fw-device.h
--- a/drivers/firewire/fw-device.h~git-ieee1394
+++ a/drivers/firewire/fw-device.h
@@ -102,11 +102,6 @@ fw_unit(struct device *dev)
#define CSR_INSTANCE 0x18
#define CSR_DIRECTORY_ID 0x20
-#define SBP2_COMMAND_SET_SPECIFIER 0x38
-#define SBP2_COMMAND_SET 0x39
-#define SBP2_COMMAND_SET_REVISION 0x3b
-#define SBP2_FIRMWARE_REVISION 0x3c
-
struct fw_csr_iterator {
u32 *p;
u32 *end;
diff -puN drivers/firewire/fw-ohci.c~git-ieee1394 drivers/firewire/fw-ohci.c
--- a/drivers/firewire/fw-ohci.c~git-ieee1394
+++ a/drivers/firewire/fw-ohci.c
@@ -18,21 +18,23 @@
* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/pci.h>
+#include <linux/compiler.h>
#include <linux/delay.h>
-#include <linux/poll.h>
#include <linux/dma-mapping.h>
+#include <linux/gfp.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/kernel.h>
#include <linux/mm.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/spinlock.h>
-#include <asm/uaccess.h>
-#include <asm/semaphore.h>
+#include <asm/page.h>
+#include <asm/system.h>
-#include "fw-transaction.h"
#include "fw-ohci.h"
+#include "fw-transaction.h"
#define DESCRIPTOR_OUTPUT_MORE 0
#define DESCRIPTOR_OUTPUT_LAST (1 << 12)
@@ -926,12 +928,14 @@ static void bus_reset_tasklet(unsigned l
self_id_count = (reg_read(ohci, OHCI1394_SelfIDCount) >> 3) & 0x3ff;
generation = (le32_to_cpu(ohci->self_id_cpu[0]) >> 16) & 0xff;
+ rmb();
for (i = 1, j = 0; j < self_id_count; i += 2, j++) {
if (ohci->self_id_cpu[i] != ~ohci->self_id_cpu[i + 1])
fw_error("inconsistent self IDs\n");
ohci->self_id_buffer[j] = le32_to_cpu(ohci->self_id_cpu[i]);
}
+ rmb();
/*
* Check the consistency of the self IDs we just read. The
@@ -972,8 +976,10 @@ static void bus_reset_tasklet(unsigned l
*/
if (ohci->next_config_rom != NULL) {
- free_rom = ohci->config_rom;
- free_rom_bus = ohci->config_rom_bus;
+ if (ohci->next_config_rom != ohci->config_rom) {
+ free_rom = ohci->config_rom;
+ free_rom_bus = ohci->config_rom_bus;
+ }
ohci->config_rom = ohci->next_config_rom;
ohci->config_rom_bus = ohci->next_config_rom_bus;
ohci->next_config_rom = NULL;
@@ -1046,6 +1052,9 @@ static irqreturn_t irq_handler(int irq,
iso_event &= ~(1 << i);
}
+ if (unlikely(event & OHCI1394_postedWriteErr))
+ fw_error("PCI posted write error\n");
+
if (event & OHCI1394_cycle64Seconds) {
cycle_time = reg_read(ohci, OHCI1394_IsochronousCycleTimer);
if ((cycle_time & 0x80000000) == 0)
@@ -1119,8 +1128,8 @@ static int ohci_enable(struct fw_card *c
OHCI1394_RQPkt | OHCI1394_RSPkt |
OHCI1394_reqTxComplete | OHCI1394_respTxComplete |
OHCI1394_isochRx | OHCI1394_isochTx |
- OHCI1394_masterIntEnable |
- OHCI1394_cycle64Seconds);
+ OHCI1394_postedWriteErr | OHCI1394_cycle64Seconds |
+ OHCI1394_masterIntEnable);
/* Activate link_on bit and contender bit in our self ID packets.*/
if (ohci_update_phy_reg(card, 4, 0,
@@ -1146,19 +1155,30 @@ static int ohci_enable(struct fw_card *c
* the right values in the bus reset tasklet.
*/
- ohci->next_config_rom =
- dma_alloc_coherent(ohci->card.device, CONFIG_ROM_SIZE,
- &ohci->next_config_rom_bus, GFP_KERNEL);
- if (ohci->next_config_rom == NULL)
- return -ENOMEM;
+ if (config_rom) {
+ ohci->next_config_rom =
+ dma_alloc_coherent(ohci->card.device, CONFIG_ROM_SIZE,
+ &ohci->next_config_rom_bus,
+ GFP_KERNEL);
+ if (ohci->next_config_rom == NULL)
+ return -ENOMEM;
- memset(ohci->next_config_rom, 0, CONFIG_ROM_SIZE);
- fw_memcpy_to_be32(ohci->next_config_rom, config_rom, length * 4);
+ memset(ohci->next_config_rom, 0, CONFIG_ROM_SIZE);
+ fw_memcpy_to_be32(ohci->next_config_rom, config_rom, length * 4);
+ } else {
+ /*
+ * In the suspend case, config_rom is NULL, which
+ * means that we just reuse the old config rom.
+ */
+ ohci->next_config_rom = ohci->config_rom;
+ ohci->next_config_rom_bus = ohci->config_rom_bus;
+ }
- ohci->next_header = config_rom[0];
+ ohci->next_header = be32_to_cpu(ohci->next_config_rom[0]);
ohci->next_config_rom[0] = 0;
reg_write(ohci, OHCI1394_ConfigROMhdr, 0);
- reg_write(ohci, OHCI1394_BusOptions, config_rom[2]);
+ reg_write(ohci, OHCI1394_BusOptions,
+ be32_to_cpu(ohci->next_config_rom[2]));
reg_write(ohci, OHCI1394_ConfigROMmap, ohci->next_config_rom_bus);
reg_write(ohci, OHCI1394_AsReqFilterHiSet, 0x80000000);
@@ -1966,7 +1986,7 @@ static int pci_resume(struct pci_dev *pd
return err;
}
- return ohci_enable(&ohci->card, ohci->config_rom, CONFIG_ROM_SIZE);
+ return ohci_enable(&ohci->card, NULL, 0);
}
#endif
diff -puN drivers/firewire/fw-sbp2.c~git-ieee1394 drivers/firewire/fw-sbp2.c
--- a/drivers/firewire/fw-sbp2.c~git-ieee1394
+++ a/drivers/firewire/fw-sbp2.c
@@ -37,11 +37,12 @@
#include <linux/dma-mapping.h>
#include <linux/blkdev.h>
#include <linux/string.h>
+#include <linux/stringify.h>
#include <linux/timer.h>
+#include <linux/workqueue.h>
#include <scsi/scsi.h>
#include <scsi/scsi_cmnd.h>
-#include <scsi/scsi_dbg.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_host.h>
@@ -61,36 +62,94 @@ module_param_named(exclusive_login, sbp2
MODULE_PARM_DESC(exclusive_login, "Exclusive login to sbp2 device "
"(default = Y, use N for concurrent initiators)");
+/*
+ * Flags for firmware oddities
+ *
+ * - 128kB max transfer
+ * Limit transfer size. Necessary for some old bridges.
+ *
+ * - 36 byte inquiry
+ * When scsi_mod probes the device, let the inquiry command look like that
+ * from MS Windows.
+ *
+ * - skip mode page 8
+ * Suppress sending of mode_sense for mode page 8 if the device pretends to
+ * support the SCSI Primary Block commands instead of Reduced Block Commands.
+ *
+ * - fix capacity
+ * Tell sd_mod to correct the last sector number reported by read_capacity.
+ * Avoids access beyond actual disk limits on devices with an off-by-one bug.
+ * Don't use this with devices which don't have this bug.
+ *
+ * - override internal blacklist
+ * Instead of adding to the built-in blacklist, use only the workarounds
+ * specified in the module load parameter.
+ * Useful if a blacklist entry interfered with a non-broken device.
+ */
+#define SBP2_WORKAROUND_128K_MAX_TRANS 0x1
+#define SBP2_WORKAROUND_INQUIRY_36 0x2
+#define SBP2_WORKAROUND_MODE_SENSE_8 0x4
+#define SBP2_WORKAROUND_FIX_CAPACITY 0x8
+#define SBP2_WORKAROUND_OVERRIDE 0x100
+
+static int sbp2_param_workarounds;
+module_param_named(workarounds, sbp2_param_workarounds, int, 0644);
+MODULE_PARM_DESC(workarounds, "Work around device bugs (default = 0"
+ ", 128kB max transfer = " __stringify(SBP2_WORKAROUND_128K_MAX_TRANS)
+ ", 36 byte inquiry = " __stringify(SBP2_WORKAROUND_INQUIRY_36)
+ ", skip mode page 8 = " __stringify(SBP2_WORKAROUND_MODE_SENSE_8)
+ ", fix capacity = " __stringify(SBP2_WORKAROUND_FIX_CAPACITY)
+ ", override internal blacklist = " __stringify(SBP2_WORKAROUND_OVERRIDE)
+ ", or a combination)");
+
/* I don't know why the SCSI stack doesn't define something like this... */
typedef void (*scsi_done_fn_t)(struct scsi_cmnd *);
static const char sbp2_driver_name[] = "sbp2";
-struct sbp2_device {
- struct kref kref;
- struct fw_unit *unit;
+/*
+ * We create one struct sbp2_logical_unit per SBP-2 Logical Unit Number Entry
+ * and one struct scsi_device per sbp2_logical_unit.
+ */
+struct sbp2_logical_unit {
+ struct sbp2_target *tgt;
+ struct list_head link;
+ struct scsi_device *sdev;
struct fw_address_handler address_handler;
struct list_head orb_list;
- u64 management_agent_address;
+
u64 command_block_agent_address;
- u32 workarounds;
+ u16 lun;
int login_id;
/*
- * We cache these addresses and only update them once we've
- * logged in or reconnected to the sbp2 device. That way, any
- * IO to the device will automatically fail and get retried if
- * it happens in a window where the device is not ready to
- * handle it (e.g. after a bus reset but before we reconnect).
+ * The generation is updated once we've logged in or reconnected
+ * to the logical unit. Thus, I/O to the device will automatically
+ * fail and get retried if it happens in a window where the device
+ * is not ready, e.g. after a bus reset but before we reconnect.
*/
- int node_id;
- int address_high;
int generation;
-
int retries;
struct delayed_work work;
};
+/*
+ * We create one struct sbp2_target per IEEE 1212 Unit Directory
+ * and one struct Scsi_Host per sbp2_target.
+ */
+struct sbp2_target {
+ struct kref kref;
+ struct fw_unit *unit;
+
+ u64 management_agent_address;
+ int directory_id;
+ int node_id;
+ int address_high;
+
+ unsigned workarounds;
+ struct list_head lu_list;
+};
+
#define SBP2_MAX_SG_ELEMENT_LENGTH 0xf000
#define SBP2_MAX_SECTORS 255 /* Max sectors supported */
#define SBP2_ORB_TIMEOUT 2000 /* Timeout in ms */
@@ -101,17 +160,9 @@ struct sbp2_device {
#define SBP2_DIRECTION_FROM_MEDIA 0x1
/* Unit directory keys */
-#define SBP2_COMMAND_SET_SPECIFIER 0x38
-#define SBP2_COMMAND_SET 0x39
-#define SBP2_COMMAND_SET_REVISION 0x3b
-#define SBP2_FIRMWARE_REVISION 0x3c
-
-/* Flags for detected oddities and brokeness */
-#define SBP2_WORKAROUND_128K_MAX_TRANS 0x1
-#define SBP2_WORKAROUND_INQUIRY_36 0x2
-#define SBP2_WORKAROUND_MODE_SENSE_8 0x4
-#define SBP2_WORKAROUND_FIX_CAPACITY 0x8
-#define SBP2_WORKAROUND_OVERRIDE 0x100
+#define SBP2_CSR_FIRMWARE_REVISION 0x3c
+#define SBP2_CSR_LOGICAL_UNIT_NUMBER 0x14
+#define SBP2_CSR_LOGICAL_UNIT_DIRECTORY 0xd4
/* Management orb opcodes */
#define SBP2_LOGIN_REQUEST 0x0
@@ -219,7 +270,7 @@ struct sbp2_command_orb {
} request;
struct scsi_cmnd *cmd;
scsi_done_fn_t done;
- struct fw_unit *unit;
+ struct sbp2_logical_unit *lu;
struct sbp2_pointer page_table[SG_ALL] __attribute__((aligned(8)));
dma_addr_t page_table_bus;
@@ -295,7 +346,7 @@ sbp2_status_write(struct fw_card *card,
unsigned long long offset,
void *payload, size_t length, void *callback_data)
{
- struct sbp2_device *sd = callback_data;
+ struct sbp2_logical_unit *lu = callback_data;
struct sbp2_orb *orb;
struct sbp2_status status;
size_t header_size;
@@ -319,7 +370,7 @@ sbp2_status_write(struct fw_card *card,
/* Lookup the orb corresponding to this status write. */
spin_lock_irqsave(&card->lock, flags);
- list_for_each_entry(orb, &sd->orb_list, link) {
+ list_for_each_entry(orb, &lu->orb_list, link) {
if (STATUS_GET_ORB_HIGH(status) == 0 &&
STATUS_GET_ORB_LOW(status) == orb->request_bus) {
orb->rcode = RCODE_COMPLETE;
@@ -329,7 +380,7 @@ sbp2_status_write(struct fw_card *card,
}
spin_unlock_irqrestore(&card->lock, flags);
- if (&orb->link != &sd->orb_list)
+ if (&orb->link != &lu->orb_list)
orb->callback(orb, &status);
else
fw_error("status write for unknown orb\n");
@@ -361,20 +412,20 @@ complete_transaction(struct fw_card *car
orb->rcode = rcode;
if (orb->rcode != RCODE_COMPLETE) {
list_del(&orb->link);
+ spin_unlock_irqrestore(&card->lock, flags);
orb->callback(orb, NULL);
+ } else {
+ spin_unlock_irqrestore(&card->lock, flags);
}
- spin_unlock_irqrestore(&card->lock, flags);
-
kref_put(&orb->kref, free_orb);
}
static void
-sbp2_send_orb(struct sbp2_orb *orb, struct fw_unit *unit,
+sbp2_send_orb(struct sbp2_orb *orb, struct sbp2_logical_unit *lu,
int node_id, int generation, u64 offset)
{
- struct fw_device *device = fw_device(unit->device.parent);
- struct sbp2_device *sd = unit->device.driver_data;
+ struct fw_device *device = fw_device(lu->tgt->unit->device.parent);
unsigned long flags;
orb->pointer.high = 0;
@@ -382,7 +433,7 @@ sbp2_send_orb(struct sbp2_orb *orb, stru
fw_memcpy_to_be32(&orb->pointer, &orb->pointer, sizeof(orb->pointer));
spin_lock_irqsave(&device->card->lock, flags);
- list_add_tail(&orb->link, &sd->orb_list);
+ list_add_tail(&orb->link, &lu->orb_list);
spin_unlock_irqrestore(&device->card->lock, flags);
/* Take a ref for the orb list and for the transaction callback. */
@@ -395,10 +446,9 @@ sbp2_send_orb(struct sbp2_orb *orb, stru
complete_transaction, orb);
}
-static int sbp2_cancel_orbs(struct fw_unit *unit)
+static int sbp2_cancel_orbs(struct sbp2_logical_unit *lu)
{
- struct fw_device *device = fw_device(unit->device.parent);
- struct sbp2_device *sd = unit->device.driver_data;
+ struct fw_device *device = fw_device(lu->tgt->unit->device.parent);
struct sbp2_orb *orb, *next;
struct list_head list;
unsigned long flags;
@@ -406,7 +456,7 @@ static int sbp2_cancel_orbs(struct fw_un
INIT_LIST_HEAD(&list);
spin_lock_irqsave(&device->card->lock, flags);
- list_splice_init(&sd->orb_list, &list);
+ list_splice_init(&lu->orb_list, &list);
spin_unlock_irqrestore(&device->card->lock, flags);
list_for_each_entry_safe(orb, next, &list, link) {
@@ -433,11 +483,11 @@ complete_management_orb(struct sbp2_orb
}
static int
-sbp2_send_management_orb(struct fw_unit *unit, int node_id, int generation,
- int function, int lun, void *response)
+sbp2_send_management_orb(struct sbp2_logical_unit *lu, int node_id,
+ int generation, int function, int lun_or_login_id,
+ void *response)
{
- struct fw_device *device = fw_device(unit->device.parent);
- struct sbp2_device *sd = unit->device.driver_data;
+ struct fw_device *device = fw_device(lu->tgt->unit->device.parent);
struct sbp2_management_orb *orb;
int retval = -ENOMEM;
@@ -458,12 +508,12 @@ sbp2_send_management_orb(struct fw_unit
orb->request.misc =
MANAGEMENT_ORB_NOTIFY |
MANAGEMENT_ORB_FUNCTION(function) |
- MANAGEMENT_ORB_LUN(lun);
+ MANAGEMENT_ORB_LUN(lun_or_login_id);
orb->request.length =
MANAGEMENT_ORB_RESPONSE_LENGTH(sizeof(orb->response));
- orb->request.status_fifo.high = sd->address_handler.offset >> 32;
- orb->request.status_fifo.low = sd->address_handler.offset;
+ orb->request.status_fifo.high = lu->address_handler.offset >> 32;
+ orb->request.status_fifo.low = lu->address_handler.offset;
if (function == SBP2_LOGIN_REQUEST) {
orb->request.misc |=
@@ -482,14 +532,14 @@ sbp2_send_management_orb(struct fw_unit
if (dma_mapping_error(orb->base.request_bus))
goto fail_mapping_request;
- sbp2_send_orb(&orb->base, unit,
- node_id, generation, sd->management_agent_address);
+ sbp2_send_orb(&orb->base, lu, node_id, generation,
+ lu->tgt->management_agent_address);
wait_for_completion_timeout(&orb->done,
msecs_to_jiffies(SBP2_ORB_TIMEOUT));
retval = -EIO;
- if (sbp2_cancel_orbs(unit) == 0) {
+ if (sbp2_cancel_orbs(lu) == 0) {
fw_error("orb reply timed out, rcode=0x%02x\n",
orb->base.rcode);
goto out;
@@ -534,10 +584,9 @@ complete_agent_reset_write(struct fw_car
kfree(t);
}
-static int sbp2_agent_reset(struct fw_unit *unit)
+static int sbp2_agent_reset(struct sbp2_logical_unit *lu)
{
- struct fw_device *device = fw_device(unit->device.parent);
- struct sbp2_device *sd = unit->device.driver_data;
+ struct fw_device *device = fw_device(lu->tgt->unit->device.parent);
struct fw_transaction *t;
static u32 zero;
@@ -546,181 +595,272 @@ static int sbp2_agent_reset(struct fw_un
return -ENOMEM;
fw_send_request(device->card, t, TCODE_WRITE_QUADLET_REQUEST,
- sd->node_id, sd->generation, device->max_speed,
- sd->command_block_agent_address + SBP2_AGENT_RESET,
+ lu->tgt->node_id, lu->generation, device->max_speed,
+ lu->command_block_agent_address + SBP2_AGENT_RESET,
&zero, sizeof(zero), complete_agent_reset_write, t);
return 0;
}
-static void sbp2_reconnect(struct work_struct *work);
-static struct scsi_host_template scsi_driver_template;
-
-static void release_sbp2_device(struct kref *kref)
+static void sbp2_release_target(struct kref *kref)
{
- struct sbp2_device *sd = container_of(kref, struct sbp2_device, kref);
- struct Scsi_Host *host =
- container_of((void *)sd, struct Scsi_Host, hostdata[0]);
-
- scsi_remove_host(host);
- sbp2_send_management_orb(sd->unit, sd->node_id, sd->generation,
- SBP2_LOGOUT_REQUEST, sd->login_id, NULL);
- fw_core_remove_address_handler(&sd->address_handler);
- fw_notify("removed sbp2 unit %s\n", sd->unit->device.bus_id);
- put_device(&sd->unit->device);
- scsi_host_put(host);
+ struct sbp2_target *tgt = container_of(kref, struct sbp2_target, kref);
+ struct sbp2_logical_unit *lu, *next;
+ struct Scsi_Host *shost =
+ container_of((void *)tgt, struct Scsi_Host, hostdata[0]);
+
+ list_for_each_entry_safe(lu, next, &tgt->lu_list, link) {
+ if (lu->sdev)
+ scsi_remove_device(lu->sdev);
+
+ sbp2_send_management_orb(lu, tgt->node_id, lu->generation,
+ SBP2_LOGOUT_REQUEST, lu->login_id, NULL);
+ fw_core_remove_address_handler(&lu->address_handler);
+ list_del(&lu->link);
+ kfree(lu);
+ }
+ scsi_remove_host(shost);
+ fw_notify("released %s\n", tgt->unit->device.bus_id);
+
+ put_device(&tgt->unit->device);
+ scsi_host_put(shost);
}
+static struct workqueue_struct *sbp2_wq;
+
+static void sbp2_reconnect(struct work_struct *work);
+
static void sbp2_login(struct work_struct *work)
{
- struct sbp2_device *sd =
- container_of(work, struct sbp2_device, work.work);
- struct Scsi_Host *host =
- container_of((void *)sd, struct Scsi_Host, hostdata[0]);
- struct fw_unit *unit = sd->unit;
+ struct sbp2_logical_unit *lu =
+ container_of(work, struct sbp2_logical_unit, work.work);
+ struct Scsi_Host *shost =
+ container_of((void *)lu->tgt, struct Scsi_Host, hostdata[0]);
+ struct scsi_device *sdev;
+ struct scsi_lun eight_bytes_lun;
+ struct fw_unit *unit = lu->tgt->unit;
struct fw_device *device = fw_device(unit->device.parent);
struct sbp2_login_response response;
- int generation, node_id, local_node_id, lun, retval;
-
- /* FIXME: Make this work for multi-lun devices. */
- lun = 0;
+ int generation, node_id, local_node_id;
generation = device->card->generation;
node_id = device->node->node_id;
local_node_id = device->card->local_node->node_id;
- if (sbp2_send_management_orb(unit, node_id, generation,
- SBP2_LOGIN_REQUEST, lun, &response) < 0) {
- if (sd->retries++ < 5) {
- schedule_delayed_work(&sd->work, DIV_ROUND_UP(HZ, 5));
+ if (sbp2_send_management_orb(lu, node_id, generation,
+ SBP2_LOGIN_REQUEST, lu->lun, &response) < 0) {
+ if (lu->retries++ < 5) {
+ queue_delayed_work(sbp2_wq, &lu->work,
+ DIV_ROUND_UP(HZ, 5));
} else {
- fw_error("failed to login to %s\n",
- unit->device.bus_id);
- kref_put(&sd->kref, release_sbp2_device);
+ fw_error("failed to login to %s LUN %04x\n",
+ unit->device.bus_id, lu->lun);
+ kref_put(&lu->tgt->kref, sbp2_release_target);
}
return;
}
- sd->generation = generation;
- sd->node_id = node_id;
- sd->address_high = local_node_id << 16;
+ lu->generation = generation;
+ lu->tgt->node_id = node_id;
+ lu->tgt->address_high = local_node_id << 16;
/* Get command block agent offset and login id. */
- sd->command_block_agent_address =
+ lu->command_block_agent_address =
((u64) (response.command_block_agent.high & 0xffff) << 32) |
response.command_block_agent.low;
- sd->login_id = LOGIN_RESPONSE_GET_LOGIN_ID(response);
+ lu->login_id = LOGIN_RESPONSE_GET_LOGIN_ID(response);
- fw_notify("logged in to sbp2 unit %s (%d retries)\n",
- unit->device.bus_id, sd->retries);
- fw_notify(" - management_agent_address: 0x%012llx\n",
- (unsigned long long) sd->management_agent_address);
- fw_notify(" - command_block_agent_address: 0x%012llx\n",
- (unsigned long long) sd->command_block_agent_address);
- fw_notify(" - status write address: 0x%012llx\n",
- (unsigned long long) sd->address_handler.offset);
+ fw_notify("logged in to %s LUN %04x (%d retries)\n",
+ unit->device.bus_id, lu->lun, lu->retries);
#if 0
/* FIXME: The linux1394 sbp2 does this last step. */
sbp2_set_busy_timeout(scsi_id);
#endif
- PREPARE_DELAYED_WORK(&sd->work, sbp2_reconnect);
- sbp2_agent_reset(unit);
+ PREPARE_DELAYED_WORK(&lu->work, sbp2_reconnect);
+ sbp2_agent_reset(lu);
- /* FIXME: Loop over luns here. */
- lun = 0;
- retval = scsi_add_device(host, 0, 0, lun);
- if (retval < 0) {
- sbp2_send_management_orb(unit, sd->node_id, sd->generation,
- SBP2_LOGOUT_REQUEST, sd->login_id,
- NULL);
+ memset(&eight_bytes_lun, 0, sizeof(eight_bytes_lun));
+ eight_bytes_lun.scsi_lun[0] = (lu->lun >> 8) & 0xff;
+ eight_bytes_lun.scsi_lun[1] = lu->lun & 0xff;
+
+ sdev = __scsi_add_device(shost, 0, 0,
+ scsilun_to_int(&eight_bytes_lun), lu);
+ if (IS_ERR(sdev)) {
+ sbp2_send_management_orb(lu, node_id, generation,
+ SBP2_LOGOUT_REQUEST, lu->login_id, NULL);
/*
* Set this back to sbp2_login so we fall back and
* retry login on bus reset.
*/
- PREPARE_DELAYED_WORK(&sd->work, sbp2_login);
+ PREPARE_DELAYED_WORK(&lu->work, sbp2_login);
+ } else {
+ lu->sdev = sdev;
+ scsi_device_put(sdev);
}
- kref_put(&sd->kref, release_sbp2_device);
+ kref_put(&lu->tgt->kref, sbp2_release_target);
}
-static int sbp2_probe(struct device *dev)
+static int sbp2_add_logical_unit(struct sbp2_target *tgt, int lun_entry)
+{
+ struct sbp2_logical_unit *lu;
+
+ lu = kmalloc(sizeof(*lu), GFP_KERNEL);
+ if (!lu)
+ return -ENOMEM;
+
+ lu->address_handler.length = 0x100;
+ lu->address_handler.address_callback = sbp2_status_write;
+ lu->address_handler.callback_data = lu;
+
+ if (fw_core_add_address_handler(&lu->address_handler,
+ &fw_high_memory_region) < 0) {
+ kfree(lu);
+ return -ENOMEM;
+ }
+
+ lu->tgt = tgt;
+ lu->sdev = NULL;
+ lu->lun = lun_entry & 0xffff;
+ lu->retries = 0;
+ INIT_LIST_HEAD(&lu->orb_list);
+ INIT_DELAYED_WORK(&lu->work, sbp2_login);
+
+ list_add_tail(&lu->link, &tgt->lu_list);
+ return 0;
+}
+
+static int sbp2_scan_logical_unit_dir(struct sbp2_target *tgt, u32 *directory)
{
- struct fw_unit *unit = fw_unit(dev);
- struct fw_device *device = fw_device(unit->device.parent);
- struct sbp2_device *sd;
struct fw_csr_iterator ci;
- struct Scsi_Host *host;
- int i, key, value, err;
- u32 model, firmware_revision;
+ int key, value;
- err = -ENOMEM;
- host = scsi_host_alloc(&scsi_driver_template, sizeof(*sd));
- if (host == NULL)
- goto fail;
+ fw_csr_iterator_init(&ci, directory);
+ while (fw_csr_iterator_next(&ci, &key, &value))
+ if (key == SBP2_CSR_LOGICAL_UNIT_NUMBER &&
+ sbp2_add_logical_unit(tgt, value) < 0)
+ return -ENOMEM;
+ return 0;
+}
- sd = (struct sbp2_device *) host->hostdata;
- unit->device.driver_data = sd;
- sd->unit = unit;
- INIT_LIST_HEAD(&sd->orb_list);
- kref_init(&sd->kref);
-
- sd->address_handler.length = 0x100;
- sd->address_handler.address_callback = sbp2_status_write;
- sd->address_handler.callback_data = sd;
-
- err = fw_core_add_address_handler(&sd->address_handler,
- &fw_high_memory_region);
- if (err < 0)
- goto fail_host;
-
- err = fw_device_enable_phys_dma(device);
- if (err < 0)
- goto fail_address_handler;
-
- err = scsi_add_host(host, &unit->device);
- if (err < 0)
- goto fail_address_handler;
+static int sbp2_scan_unit_dir(struct sbp2_target *tgt, u32 *directory,
+ u32 *model, u32 *firmware_revision)
+{
+ struct fw_csr_iterator ci;
+ int key, value;
- /*
- * Scan unit directory to get management agent address,
- * firmware revison and model. Initialize firmware_revision
- * and model to values that wont match anything in our table.
- */
- firmware_revision = 0xff000000;
- model = 0xff000000;
- fw_csr_iterator_init(&ci, unit->directory);
+ fw_csr_iterator_init(&ci, directory);
while (fw_csr_iterator_next(&ci, &key, &value)) {
switch (key) {
+
case CSR_DEPENDENT_INFO | CSR_OFFSET:
- sd->management_agent_address =
- 0xfffff0000000ULL + 4 * value;
+ tgt->management_agent_address =
+ CSR_REGISTER_BASE + 4 * value;
break;
- case SBP2_FIRMWARE_REVISION:
- firmware_revision = value;
+
+ case CSR_DIRECTORY_ID:
+ tgt->directory_id = value;
break;
+
case CSR_MODEL:
- model = value;
+ *model = value;
+ break;
+
+ case SBP2_CSR_FIRMWARE_REVISION:
+ *firmware_revision = value;
+ break;
+
+ case SBP2_CSR_LOGICAL_UNIT_NUMBER:
+ if (sbp2_add_logical_unit(tgt, value) < 0)
+ return -ENOMEM;
+ break;
+
+ case SBP2_CSR_LOGICAL_UNIT_DIRECTORY:
+ if (sbp2_scan_logical_unit_dir(tgt, ci.p + value) < 0)
+ return -ENOMEM;
break;
}
}
+ return 0;
+}
+
+static void sbp2_init_workarounds(struct sbp2_target *tgt, u32 model,
+ u32 firmware_revision)
+{
+ int i;
+ unsigned w = sbp2_param_workarounds;
+
+ if (w)
+ fw_notify("Please notify linux1394-devel@lists.sourceforge.net "
+ "if you need the workarounds parameter for %s\n",
+ tgt->unit->device.bus_id);
+
+ if (w & SBP2_WORKAROUND_OVERRIDE)
+ goto out;
for (i = 0; i < ARRAY_SIZE(sbp2_workarounds_table); i++) {
+
if (sbp2_workarounds_table[i].firmware_revision !=
(firmware_revision & 0xffffff00))
continue;
+
if (sbp2_workarounds_table[i].model != model &&
sbp2_workarounds_table[i].model != ~0)
continue;
- sd->workarounds |= sbp2_workarounds_table[i].workarounds;
+
+ w |= sbp2_workarounds_table[i].workarounds;
break;
}
-
- if (sd->workarounds)
- fw_notify("Workarounds for node %s: 0x%x "
+ out:
+ if (w)
+ fw_notify("Workarounds for %s: 0x%x "
"(firmware_revision 0x%06x, model_id 0x%06x)\n",
- unit->device.bus_id,
- sd->workarounds, firmware_revision, model);
+ tgt->unit->device.bus_id,
+ w, firmware_revision, model);
+ tgt->workarounds = w;
+}
+
+static struct scsi_host_template scsi_driver_template;
+
+static int sbp2_probe(struct device *dev)
+{
+ struct fw_unit *unit = fw_unit(dev);
+ struct fw_device *device = fw_device(unit->device.parent);
+ struct sbp2_target *tgt;
+ struct sbp2_logical_unit *lu;
+ struct Scsi_Host *shost;
+ u32 model, firmware_revision;
+
+ shost = scsi_host_alloc(&scsi_driver_template, sizeof(*tgt));
+ if (shost == NULL)
+ return -ENOMEM;
+
+ tgt = (struct sbp2_target *)shost->hostdata;
+ unit->device.driver_data = tgt;
+ tgt->unit = unit;
+ kref_init(&tgt->kref);
+ INIT_LIST_HEAD(&tgt->lu_list);
+
+ if (fw_device_enable_phys_dma(device) < 0)
+ goto fail_shost_put;
+
+ if (scsi_add_host(shost, &unit->device) < 0)
+ goto fail_shost_put;
+
+ /* Initialize to values that won't match anything in our table. */
+ firmware_revision = 0xff000000;
+ model = 0xff000000;
+
+ /* implicit directory ID */
+ tgt->directory_id = ((unit->directory - device->config_rom) * 4
+ + CSR_CONFIG_ROM) & 0xffffff;
+
+ if (sbp2_scan_unit_dir(tgt, unit->directory, &model,
+ &firmware_revision) < 0)
+ goto fail_tgt_put;
+
+ sbp2_init_workarounds(tgt, model, firmware_revision);
get_device(&unit->device);
@@ -729,35 +869,34 @@ static int sbp2_probe(struct device *dev
* reschedule retries. Always get the ref before scheduling
* work.
*/
- INIT_DELAYED_WORK(&sd->work, sbp2_login);
- if (schedule_delayed_work(&sd->work, 0))
- kref_get(&sd->kref);
-
+ list_for_each_entry(lu, &tgt->lu_list, link)
+ if (queue_delayed_work(sbp2_wq, &lu->work, 0))
+ kref_get(&tgt->kref);
return 0;
- fail_address_handler:
- fw_core_remove_address_handler(&sd->address_handler);
- fail_host:
- scsi_host_put(host);
- fail:
- return err;
+ fail_tgt_put:
+ kref_put(&tgt->kref, sbp2_release_target);
+ return -ENOMEM;
+
+ fail_shost_put:
+ scsi_host_put(shost);
+ return -ENOMEM;
}
static int sbp2_remove(struct device *dev)
{
struct fw_unit *unit = fw_unit(dev);
- struct sbp2_device *sd = unit->device.driver_data;
-
- kref_put(&sd->kref, release_sbp2_device);
+ struct sbp2_target *tgt = unit->device.driver_data;
+ kref_put(&tgt->kref, sbp2_release_target);
return 0;
}
static void sbp2_reconnect(struct work_struct *work)
{
- struct sbp2_device *sd =
- container_of(work, struct sbp2_device, work.work);
- struct fw_unit *unit = sd->unit;
+ struct sbp2_logical_unit *lu =
+ container_of(work, struct sbp2_logical_unit, work.work);
+ struct fw_unit *unit = lu->tgt->unit;
struct fw_device *device = fw_device(unit->device.parent);
int generation, node_id, local_node_id;
@@ -765,40 +904,49 @@ static void sbp2_reconnect(struct work_s
node_id = device->node->node_id;
local_node_id = device->card->local_node->node_id;
- if (sbp2_send_management_orb(unit, node_id, generation,
+ if (sbp2_send_management_orb(lu, node_id, generation,
SBP2_RECONNECT_REQUEST,
- sd->login_id, NULL) < 0) {
- if (sd->retries++ >= 5) {
+ lu->login_id, NULL) < 0) {
+ if (lu->retries++ >= 5) {
fw_error("failed to reconnect to %s\n",
unit->device.bus_id);
/* Fall back and try to log in again. */
- sd->retries = 0;
- PREPARE_DELAYED_WORK(&sd->work, sbp2_login);
+ lu->retries = 0;
+ PREPARE_DELAYED_WORK(&lu->work, sbp2_login);
}
- schedule_delayed_work(&sd->work, DIV_ROUND_UP(HZ, 5));
+ queue_delayed_work(sbp2_wq, &lu->work, DIV_ROUND_UP(HZ, 5));
return;
}
- sd->generation = generation;
- sd->node_id = node_id;
- sd->address_high = local_node_id << 16;
-
- fw_notify("reconnected to unit %s (%d retries)\n",
- unit->device.bus_id, sd->retries);
- sbp2_agent_reset(unit);
- sbp2_cancel_orbs(unit);
- kref_put(&sd->kref, release_sbp2_device);
+ lu->generation = generation;
+ lu->tgt->node_id = node_id;
+ lu->tgt->address_high = local_node_id << 16;
+
+ fw_notify("reconnected to %s LUN %04x (%d retries)\n",
+ unit->device.bus_id, lu->lun, lu->retries);
+
+ sbp2_agent_reset(lu);
+ sbp2_cancel_orbs(lu);
+
+ kref_put(&lu->tgt->kref, sbp2_release_target);
}
static void sbp2_update(struct fw_unit *unit)
{
- struct fw_device *device = fw_device(unit->device.parent);
- struct sbp2_device *sd = unit->device.driver_data;
+ struct sbp2_target *tgt = unit->device.driver_data;
+ struct sbp2_logical_unit *lu;
- sd->retries = 0;
- fw_device_enable_phys_dma(device);
- if (schedule_delayed_work(&sd->work, 0))
- kref_get(&sd->kref);
+ fw_device_enable_phys_dma(fw_device(unit->device.parent));
+
+ /*
+ * Fw-core serializes sbp2_update() against sbp2_remove().
+ * Iteration over tgt->lu_list is therefore safe here.
+ */
+ list_for_each_entry(lu, &tgt->lu_list, link) {
+ lu->retries = 0;
+ if (queue_delayed_work(sbp2_wq, &lu->work, 0))
+ kref_get(&tgt->kref);
+ }
}
#define SBP2_UNIT_SPEC_ID_ENTRY 0x0000609e
@@ -868,13 +1016,12 @@ complete_command_orb(struct sbp2_orb *ba
{
struct sbp2_command_orb *orb =
container_of(base_orb, struct sbp2_command_orb, base);
- struct fw_unit *unit = orb->unit;
- struct fw_device *device = fw_device(unit->device.parent);
+ struct fw_device *device = fw_device(orb->lu->tgt->unit->device.parent);
int result;
if (status != NULL) {
if (STATUS_GET_DEAD(*status))
- sbp2_agent_reset(unit);
+ sbp2_agent_reset(orb->lu);
switch (STATUS_GET_RESPONSE(*status)) {
case SBP2_STATUS_REQUEST_COMPLETE:
@@ -918,12 +1065,10 @@ complete_command_orb(struct sbp2_orb *ba
orb->done(orb->cmd);
}
-static int sbp2_command_orb_map_scatterlist(struct sbp2_command_orb *orb)
+static int
+sbp2_map_scatterlist(struct sbp2_command_orb *orb, struct fw_device *device,
+ struct sbp2_logical_unit *lu)
{
- struct sbp2_device *sd =
- (struct sbp2_device *)orb->cmd->device->host->hostdata;
- struct fw_unit *unit = sd->unit;
- struct fw_device *device = fw_device(unit->device.parent);
struct scatterlist *sg;
int sg_len, l, i, j, count;
dma_addr_t sg_addr;
@@ -942,10 +1087,9 @@ static int sbp2_command_orb_map_scatterl
* tables.
*/
if (count == 1 && sg_dma_len(sg) < SBP2_MAX_SG_ELEMENT_LENGTH) {
- orb->request.data_descriptor.high = sd->address_high;
+ orb->request.data_descriptor.high = lu->tgt->address_high;
orb->request.data_descriptor.low = sg_dma_address(sg);
- orb->request.misc |=
- COMMAND_ORB_DATA_SIZE(sg_dma_len(sg));
+ orb->request.misc |= COMMAND_ORB_DATA_SIZE(sg_dma_len(sg));
return 0;
}
@@ -989,7 +1133,7 @@ static int sbp2_command_orb_map_scatterl
* initiator (i.e. us), but data_descriptor can refer to data
* on other nodes so we need to put our ID in descriptor.high.
*/
- orb->request.data_descriptor.high = sd->address_high;
+ orb->request.data_descriptor.high = lu->tgt->address_high;
orb->request.data_descriptor.low = orb->page_table_bus;
orb->request.misc |=
COMMAND_ORB_PAGE_TABLE_PRESENT |
@@ -1008,12 +1152,11 @@ static int sbp2_command_orb_map_scatterl
static int sbp2_scsi_queuecommand(struct scsi_cmnd *cmd, scsi_done_fn_t done)
{
- struct sbp2_device *sd =
- (struct sbp2_device *)cmd->device->host->hostdata;
- struct fw_unit *unit = sd->unit;
- struct fw_device *device = fw_device(unit->device.parent);
+ struct sbp2_logical_unit *lu = cmd->device->hostdata;
+ struct fw_device *device = fw_device(lu->tgt->unit->device.parent);
struct sbp2_command_orb *orb;
unsigned max_payload;
+ int retval = SCSI_MLQUEUE_HOST_BUSY;
/*
* Bidirectional commands are not yet implemented, and unknown
@@ -1029,14 +1172,14 @@ static int sbp2_scsi_queuecommand(struct
orb = kzalloc(sizeof(*orb), GFP_ATOMIC);
if (orb == NULL) {
fw_notify("failed to alloc orb\n");
- goto fail_alloc;
+ return SCSI_MLQUEUE_HOST_BUSY;
}
/* Initialize rcode to something not RCODE_COMPLETE. */
orb->base.rcode = -1;
kref_init(&orb->base.kref);
- orb->unit = unit;
+ orb->lu = lu;
orb->done = done;
orb->cmd = cmd;
@@ -1062,8 +1205,8 @@ static int sbp2_scsi_queuecommand(struct
orb->request.misc |=
COMMAND_ORB_DIRECTION(SBP2_DIRECTION_TO_MEDIA);
- if (scsi_sg_count(cmd) && sbp2_command_orb_map_scatterlist(orb) < 0)
- goto fail_mapping;
+ if (scsi_sg_count(cmd) && sbp2_map_scatterlist(orb, device, lu) < 0)
+ goto out;
fw_memcpy_to_be32(&orb->request, &orb->request, sizeof(orb->request));
@@ -1076,49 +1219,47 @@ static int sbp2_scsi_queuecommand(struct
dma_map_single(device->card->device, &orb->request,
sizeof(orb->request), DMA_TO_DEVICE);
if (dma_mapping_error(orb->base.request_bus))
- goto fail_mapping;
-
- sbp2_send_orb(&orb->base, unit, sd->node_id, sd->generation,
- sd->command_block_agent_address + SBP2_ORB_POINTER);
-
- kref_put(&orb->base.kref, free_orb);
- return 0;
+ goto out;
- fail_mapping:
+ sbp2_send_orb(&orb->base, lu, lu->tgt->node_id, lu->generation,
+ lu->command_block_agent_address + SBP2_ORB_POINTER);
+ retval = 0;
+ out:
kref_put(&orb->base.kref, free_orb);
- fail_alloc:
- return SCSI_MLQUEUE_HOST_BUSY;
+ return retval;
}
static int sbp2_scsi_slave_alloc(struct scsi_device *sdev)
{
- struct sbp2_device *sd = (struct sbp2_device *)sdev->host->hostdata;
+ struct sbp2_logical_unit *lu = sdev->hostdata;
sdev->allow_restart = 1;
- if (sd->workarounds & SBP2_WORKAROUND_INQUIRY_36)
+ if (lu->tgt->workarounds & SBP2_WORKAROUND_INQUIRY_36)
sdev->inquiry_len = 36;
+
return 0;
}
static int sbp2_scsi_slave_configure(struct scsi_device *sdev)
{
- struct sbp2_device *sd = (struct sbp2_device *)sdev->host->hostdata;
- struct fw_unit *unit = sd->unit;
+ struct sbp2_logical_unit *lu = sdev->hostdata;
sdev->use_10_for_rw = 1;
if (sdev->type == TYPE_ROM)
sdev->use_10_for_ms = 1;
+
if (sdev->type == TYPE_DISK &&
- sd->workarounds & SBP2_WORKAROUND_MODE_SENSE_8)
+ lu->tgt->workarounds & SBP2_WORKAROUND_MODE_SENSE_8)
sdev->skip_ms_page_8 = 1;
- if (sd->workarounds & SBP2_WORKAROUND_FIX_CAPACITY) {
- fw_notify("setting fix_capacity for %s\n", unit->device.bus_id);
+
+ if (lu->tgt->workarounds & SBP2_WORKAROUND_FIX_CAPACITY)
sdev->fix_capacity = 1;
- }
- if (sd->workarounds & SBP2_WORKAROUND_128K_MAX_TRANS)
+
+ if (lu->tgt->workarounds & SBP2_WORKAROUND_128K_MAX_TRANS)
blk_queue_max_sectors(sdev->request_queue, 128 * 1024 / 512);
+
return 0;
}
@@ -1128,13 +1269,11 @@ static int sbp2_scsi_slave_configure(str
*/
static int sbp2_scsi_abort(struct scsi_cmnd *cmd)
{
- struct sbp2_device *sd =
- (struct sbp2_device *)cmd->device->host->hostdata;
- struct fw_unit *unit = sd->unit;
+ struct sbp2_logical_unit *lu = cmd->device->hostdata;
fw_notify("sbp2_scsi_abort\n");
- sbp2_agent_reset(unit);
- sbp2_cancel_orbs(unit);
+ sbp2_agent_reset(lu);
+ sbp2_cancel_orbs(lu);
return SUCCESS;
}
@@ -1151,37 +1290,18 @@ sbp2_sysfs_ieee1394_id_show(struct devic
char *buf)
{
struct scsi_device *sdev = to_scsi_device(dev);
- struct sbp2_device *sd;
- struct fw_unit *unit;
+ struct sbp2_logical_unit *lu;
struct fw_device *device;
- u32 directory_id;
- struct fw_csr_iterator ci;
- int key, value, lun;
if (!sdev)
return 0;
- sd = (struct sbp2_device *)sdev->host->hostdata;
- unit = sd->unit;
- device = fw_device(unit->device.parent);
-
- /* implicit directory ID */
- directory_id = ((unit->directory - device->config_rom) * 4
- + CSR_CONFIG_ROM) & 0xffffff;
-
- /* explicit directory ID, overrides implicit ID if present */
- fw_csr_iterator_init(&ci, unit->directory);
- while (fw_csr_iterator_next(&ci, &key, &value))
- if (key == CSR_DIRECTORY_ID) {
- directory_id = value;
- break;
- }
- /* FIXME: Make this work for multi-lun devices. */
- lun = 0;
+ lu = sdev->hostdata;
+ device = fw_device(lu->tgt->unit->device.parent);
return sprintf(buf, "%08x%08x:%06x:%04x\n",
device->config_rom[3], device->config_rom[4],
- directory_id, lun);
+ lu->tgt->directory_id, lu->lun);
}
static DEVICE_ATTR(ieee1394_id, S_IRUGO, sbp2_sysfs_ieee1394_id_show, NULL);
@@ -1219,12 +1339,17 @@ MODULE_ALIAS("sbp2");
static int __init sbp2_init(void)
{
+ sbp2_wq = create_singlethread_workqueue(KBUILD_MODNAME);
+ if (!sbp2_wq)
+ return -ENOMEM;
+
return driver_register(&sbp2_driver.driver);
}
static void __exit sbp2_cleanup(void)
{
driver_unregister(&sbp2_driver.driver);
+ destroy_workqueue(sbp2_wq);
}
module_init(sbp2_init);
diff -puN drivers/firewire/fw-transaction.c~git-ieee1394 drivers/firewire/fw-transaction.c
--- a/drivers/firewire/fw-transaction.c~git-ieee1394
+++ a/drivers/firewire/fw-transaction.c
@@ -410,7 +410,12 @@ EXPORT_SYMBOL(fw_unit_space_region);
* controller. When a request is received that falls within the
* specified address range, the specified callback is invoked. The
* parameters passed to the callback give the details of the
- * particular request
+ * particular request.
+ *
+ * Return value: 0 on success, non-zero otherwise.
+ * The start offset of the handler's address region is determined by
+ * fw_core_add_address_handler() and is returned in handler->offset.
+ * The offset is quadlet-aligned.
*/
int
fw_core_add_address_handler(struct fw_address_handler *handler,
@@ -422,14 +427,15 @@ fw_core_add_address_handler(struct fw_ad
spin_lock_irqsave(&address_handler_lock, flags);
- handler->offset = region->start;
+ handler->offset = roundup(region->start, 4);
while (handler->offset + handler->length <= region->end) {
other =
lookup_overlapping_address_handler(&address_handler_list,
handler->offset,
handler->length);
if (other != NULL) {
- handler->offset += other->length;
+ handler->offset =
+ roundup(other->offset + other->length, 4);
} else {
list_add_tail(&handler->link, &address_handler_list);
ret = 0;
diff -puN drivers/ieee1394/eth1394.c~git-ieee1394 drivers/ieee1394/eth1394.c
--- a/drivers/ieee1394/eth1394.c~git-ieee1394
+++ a/drivers/ieee1394/eth1394.c
@@ -1148,8 +1148,6 @@ static int ether1394_data_handler(struct
pdg->sz++;
lh = find_partial_datagram(pdgl, dgl);
} else {
- struct partial_datagram *pd;
-
pd = list_entry(lh, struct partial_datagram, list);
if (fragment_overlap(&pd->frag_info, fg_off, fg_len)) {
@@ -1217,23 +1215,19 @@ static int ether1394_data_handler(struct
priv->stats.rx_errors++;
priv->stats.rx_dropped++;
dev_kfree_skb_any(skb);
- goto bad_proto;
- }
-
- if (netif_rx(skb) == NET_RX_DROP) {
+ } else if (netif_rx(skb) == NET_RX_DROP) {
priv->stats.rx_errors++;
priv->stats.rx_dropped++;
- goto bad_proto;
+ } else {
+ priv->stats.rx_packets++;
+ priv->stats.rx_bytes += skb->len;
}
- /* Statistics */
- priv->stats.rx_packets++;
- priv->stats.rx_bytes += skb->len;
+ spin_unlock_irqrestore(&priv->lock, flags);
bad_proto:
if (netif_queue_stopped(dev))
netif_wake_queue(dev);
- spin_unlock_irqrestore(&priv->lock, flags);
dev->last_rx = jiffies;
diff -puN drivers/ieee1394/nodemgr.c~git-ieee1394 drivers/ieee1394/nodemgr.c
--- a/drivers/ieee1394/nodemgr.c~git-ieee1394
+++ a/drivers/ieee1394/nodemgr.c
@@ -1712,7 +1712,8 @@ static int nodemgr_host_thread(void *__h
* to make sure things settle down. */
g = get_hpsb_generation(host);
for (i = 0; i < 4 ; i++) {
- if (msleep_interruptible(63) || kthread_should_stop())
+ msleep_interruptible(63);
+ if (kthread_should_stop())
goto exit;
/* Now get the generation in which the node ID's we collect
diff -puN drivers/ieee1394/pcilynx.c~git-ieee1394 drivers/ieee1394/pcilynx.c
--- a/drivers/ieee1394/pcilynx.c~git-ieee1394
+++ a/drivers/ieee1394/pcilynx.c
@@ -765,7 +765,6 @@ static int lynx_devctl(struct hpsb_host
} else {
struct ti_pcl pcl;
u32 ack;
- struct hpsb_packet *packet;
PRINT(KERN_INFO, lynx->id, "cancelling async packet, that was already in PCL");
@@ -1470,8 +1469,6 @@ static int __devinit add_card(struct pci
if (i2c_transfer(i2c_ad, msg, 2) < 0) {
PRINT(KERN_ERR, lynx->id, "unable to read bus info block from i2c");
} else {
- int i;
-
PRINT(KERN_INFO, lynx->id, "got bus info block from serial eeprom");
/* FIXME: probably we shoud rewrite the max_rec, max_ROM(1394a),
* generation(1394a) and link_spd(1394a) field and recalculate
diff -puN drivers/ieee1394/sbp2.c~git-ieee1394 drivers/ieee1394/sbp2.c
--- a/drivers/ieee1394/sbp2.c~git-ieee1394
+++ a/drivers/ieee1394/sbp2.c
@@ -242,6 +242,8 @@ static int sbp2_max_speed_and_size(struc
static const u8 sbp2_speedto_max_payload[] = { 0x7, 0x8, 0x9, 0xA, 0xB, 0xC };
+static DEFINE_RWLOCK(sbp2_hi_logical_units_lock);
+
static struct hpsb_highlevel sbp2_highlevel = {
.name = SBP2_DEVICE_NAME,
.host_reset = sbp2_host_reset,
@@ -732,6 +734,7 @@ static struct sbp2_lu *sbp2_alloc_device
struct sbp2_fwhost_info *hi;
struct Scsi_Host *shost = NULL;
struct sbp2_lu *lu = NULL;
+ unsigned long flags;
lu = kzalloc(sizeof(*lu), GFP_KERNEL);
if (!lu) {
@@ -784,7 +787,9 @@ static struct sbp2_lu *sbp2_alloc_device
lu->hi = hi;
+ write_lock_irqsave(&sbp2_hi_logical_units_lock, flags);
list_add_tail(&lu->lu_list, &hi->logical_units);
+ write_unlock_irqrestore(&sbp2_hi_logical_units_lock, flags);
/* Register the status FIFO address range. We could use the same FIFO
* for targets at different nodes. However we need different FIFOs per
@@ -828,16 +833,20 @@ static void sbp2_host_reset(struct hpsb_
{
struct sbp2_fwhost_info *hi;
struct sbp2_lu *lu;
+ unsigned long flags;
hi = hpsb_get_hostinfo(&sbp2_highlevel, host);
if (!hi)
return;
+
+ read_lock_irqsave(&sbp2_hi_logical_units_lock, flags);
list_for_each_entry(lu, &hi->logical_units, lu_list)
if (likely(atomic_read(&lu->state) !=
SBP2LU_STATE_IN_SHUTDOWN)) {
atomic_set(&lu->state, SBP2LU_STATE_IN_RESET);
scsi_block_requests(lu->shost);
}
+ read_unlock_irqrestore(&sbp2_hi_logical_units_lock, flags);
}
static int sbp2_start_device(struct sbp2_lu *lu)
@@ -919,6 +928,7 @@ alloc_fail:
static void sbp2_remove_device(struct sbp2_lu *lu)
{
struct sbp2_fwhost_info *hi;
+ unsigned long flags;
if (!lu)
return;
@@ -933,7 +943,9 @@ static void sbp2_remove_device(struct sb
flush_scheduled_work();
sbp2util_remove_command_orb_pool(lu, hi->host);
+ write_lock_irqsave(&sbp2_hi_logical_units_lock, flags);
list_del(&lu->lu_list);
+ write_unlock_irqrestore(&sbp2_hi_logical_units_lock, flags);
if (lu->login_response)
dma_free_coherent(hi->host->device.parent,
@@ -1707,6 +1719,7 @@ static int sbp2_handle_status_write(stru
}
/* Find the unit which wrote the status. */
+ read_lock_irqsave(&sbp2_hi_logical_units_lock, flags);
list_for_each_entry(lu_tmp, &hi->logical_units, lu_list) {
if (lu_tmp->ne->nodeid == nodeid &&
lu_tmp->status_fifo_addr == addr) {
@@ -1714,6 +1727,8 @@ static int sbp2_handle_status_write(stru
break;
}
}
+ read_unlock_irqrestore(&sbp2_hi_logical_units_lock, flags);
+
if (unlikely(!lu)) {
SBP2_ERR("lu is NULL - device is gone?");
return RCODE_ADDRESS_ERROR;
_
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