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* firewire: fw-sbp2: expose module parameter for workaroundsStefan Richter2007-10-16
| | | | | | | | | | | | | 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>
* firewire: fw-sbp2: add support for multiple logical units per targetStefan Richter2007-10-16
| | | | | | | 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>
* firewire: fw-sbp2: always enable IRQs before calling command ORB callbackStefan Richter2007-10-16
| | | | | | | | | | 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> Acked-by: Kristian Høgsberg <krh@redhat.com>
* firewire: fw-core: local variable shadows a global oneStefan Richter2007-10-16
| | | | | | | | | 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>
* firewire: optimize fw_core_add_address_handlerStefan Richter2007-10-16
| | | | | | | | 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>
* fw-cdev __user annotationsAl Viro2007-10-14
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Driver core: change add_uevent_var to use a structKay Sievers2007-10-12
| | | | | | | | | | | | | | | | | | This changes the uevent buffer functions to use a struct instead of a long list of parameters. It does no longer require the caller to do the proper buffer termination and size accounting, which is currently wrong in some places. It fixes a known bug where parts of the uevent environment are overwritten because of wrong index calculations. Many thanks to Mathieu Desnoyers for finding bugs and improving the error handling. Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Cc: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Cc: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* firewire: point to migration documentStefan Richter2007-10-07
| | | | Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
* firewire: fw-ohci: ignore failure of pci_set_power_state (fix suspend ↵Stefan Richter2007-09-07
| | | | | | | | | | | | | | | regression) Fixes (papers over) "Sleep problems with kernels >= 2.6.21 on powerpc", http://lkml.org/lkml/2007/8/25/155. The issue is that the FireWire controller's pci_dev.current_state of iBook G3 and presumably older PowerBooks is still in PCI_UNKNOWN instead of PCI_D0 when the firewire driver's .suspend method is called. Like it was suggested earlier in http://lkml.org/lkml/2006/10/24/13, we do not fail .suspend anymore if pci_set_power_state failed. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
* firewire: Add ref-counting for sbp2 orbs (fix command abortion)Kristian Høgsberg2007-08-25
| | | | | | | | | | | This handles the case where we get the status write before getting the complete_transaction callback ("status write for unknown orb"). In this case, we just assume that the initial orb pointer transaction succeeded and finish the orb. To prevent the transaction callback from touching freed memory, we ref-count the orb structures. Signed-off-by: Kristian Høgsberg <krh@redhat.com> Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
* firewire: fix unloading of fw-ohci while devices are attachedStefan Richter2007-08-25
| | | | | | | Fix panic in run_timer_softirq right after "modprobe -r firewire-ohci" if a FireWire disk was attached and firewire-sbp2 loaded. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
* firewire: fw-core: make two variables staticStefan Richter2007-08-02
| | | | Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
* firewire: fw-ohci: dma_free_coherent needs IRQs enabledStefan Richter2007-08-02
| | | | Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
* firewire: fw-sbp2: set correct maximum payload (fixes CardBus adapters)Stefan Richter2007-08-02
| | | | | | | | | | | | 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> Acked-by: Kristian Høgsberg <krh@redhat.com>
* Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6Linus Torvalds2007-07-22
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (60 commits) [SCSI] libsas: make ATA functions selectable by a config option [SCSI] bsg: unexport sg v3 helper functions [SCSI] bsg: fix bsg_unregister_queue [SCSI] bsg: make class backlinks [SCSI] 3w-9xxx: add support for 9690SA [SCSI] bsg: fix bsg_register_queue error path [SCSI] ESP: Increase ESP_BUS_TIMEOUT to 275. [SCSI] libsas: fix scr_read/write users and update the libata documentation [SCSI] mpt fusion: update Kconfig help [SCSI] scsi_transport_sas: add destructor for bsg [SCSI] iscsi_tcp: buggered kmalloc() [SCSI] qla2xxx: Update version number to 8.02.00-k2. [SCSI] qla2xxx: Add ISP25XX support. [SCSI] qla2xxx: Use pci_try_set_mwi(). [SCSI] qla2xxx: Use PCI-X/PCI-Express read control interfaces. [SCSI] qla2xxx: Re-factor isp_operations to static structures. [SCSI] qla2xxx: Validate mid-layer 'underflow' during check-condition handling. [SCSI] qla2xxx: Correct setting of 'current' and 'supported' speeds during FDMI registration. [SCSI] qla2xxx: Generalize iIDMA support. [SCSI] qla2xxx: Generalize FW-Interface-2 support. ...
| * [SCSI] Make scsi_host_template::proc_name const char * instead of char *.Kristian Høgsberg2007-07-19
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Kristian Høgsberg <krh@redhat.com> collapsed with fw-sbp2 patch "Drop cast to non-const char * in host template initialization." from Kristian Høgsberg Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* | firewire: fw-sbp2: convert to new SCSI data buffer accessorsStefan Richter2007-07-18
| | | | | | | | Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
* | firewire: fix memory leak of fw_request instancesStefan Richter2007-07-18
| | | | | | | | | | | | | | | | Found and debugged by Jay Fenlason <fenlason@redhat.com>. The bug was especially noticeable with direct I/O over fw-sbp2. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by: Kristian Høgsberg <krh@redhat.com>
* | firewire: remove bogus check in fw_core_handle_requestStefan Richter2007-07-18
| | | | | | | | | | | | | | | | | | | | | | This check is bogus: - Maximum asynchronous payload size for S800...S3200 is 4096. - The p->payload_length is totally uninteresting. Only the request->length of the subsequently allocated and initialized struct fw_request is of significance. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by: Kristian Høgsberg <krh@redhat.com>
* | firewire: fw-ohci: fix "scheduling while atomic"Stefan Richter2007-07-18
| | | | | | | | | | | | context_stop is called by bus_reset_tasklet, among else. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
* | firewire: fw-ohci: flush MMIO write before msleepStefan Richter2007-07-18
|/ | | | Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
* firewire: fw-sbp2: fix DMA mapping of management ORBsStefan Richter2007-07-09
| | | | | | | The CPU must not touch the buffer after it was DMA-mapped. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by: Kristian Høgsberg <krh@redhat.com>
* firewire: fw-sbp2: fix DMA mapping of command ORBsStefan Richter2007-07-09
| | | | | | | The CPU must not touch the buffer after it was DMA-mapped. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by: Kristian Høgsberg <krh@redhat.com>
* firewire: fw-sbp2: fix DMA mapping of S/G tablesStefan Richter2007-07-09
| | | | | | | | | - The CPU must not touch the buffer after it was DMA-mapped. - The size argument of dma_unmap_single(...page_table...) was bogus. - Move a comment closer to the code to which it refers to. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by: Kristian Høgsberg <krh@redhat.com>
* firewire: fw-sbp2: add a boundary checkStefan Richter2007-07-09
| | | | | | | | | | | | | | Add rudimentary check for the case that the page table overflows due to merging of s/g elements by the IOMMU. This would have lead to overwriting of arbitrary memory. After this change I expect that an offending command will be unsuccessfully retried until the scsi_device is taken offline by SCSI core. It's a border case and not worth to implement a recovery strategy. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Acked-by: Kristian Høgsberg <krh@redhat.com>
* firewire: fw-sbp2: correctly align page tablesStefan Richter2007-07-09
| | | | | | | This is required per SBP-2 clause 5.2. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Acked-by: Kristian Høgsberg <krh@redhat.com>
* firewire: fw-sbp2: memset wants string.hStefan Richter2007-07-09
| | | | | Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Acked-by: Kristian Høgsberg <krh@redhat.com>
* firewire: fw-sbp2: use correct speed in sbp2_agent_resetStefan Richter2007-07-09
| | | | | | | noticed by Jay Fenlason Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Acked-by: Kristian Høgsberg <krh@redhat.com>
* firewire: fw-sbp2: correctly dereference by container_ofJay Fenlason2007-07-09
| | | | | | | | | Replace a cast with a container_of(). As long as nobody reorders the structure elements, they do the same thing, but container_of() is more readable. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> (added complete_command_orb) Acked-by: Kristian Høgsberg <krh@redhat.com>
* firewire: fw-sbp2: implement nonexclusive loginStefan Richter2007-07-09
| | | | | Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by: Kristian Høgsberg <krh@redhat.com>
* firewire: fw-sbp2: let SCSI shutdown commands through before logoutStefan Richter2007-07-09
| | | | | | | | This affects of course only the "soft shutdown" case, e.g. "modprobe -r firewire-sbp2", while it doesn't matter for hot unplug. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by: Kristian Høgsberg <krh@redhat.com>
* firewire: fw-sbp2: implement max sectors limit for some old bridgesStefan Richter2007-07-09
| | | | | | | This currently only affects one bridge in the hardwired blacklist. I don't own one of those, hence haven't tested it. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
* firewire: simplify a struct typeStefan Richter2007-07-09
| | | | | | | cleanup after "firewire: support S100B...S400B and link slower than PHY" Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by: Kristian Høgsberg <krh@redhat.com>
* firewire: support S100B...S400B and link slower than PHYStefan Richter2007-07-09
| | | | | | | | | | | | | | | | | Use a speed probe to determine the speed over 1394b buses and of nodes which report a link speed less than their PHY speed. Log the effective maximum speed of newly created nodes in dmesg. Also, read the config ROM (except bus info block) at the maximum speed rather than S100. This isn't a real optimization though because we still only use quadlet read requests for the entire ROM. The patch also adds support for S1600 and S3200, although such hardware does not exist yet. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by: Kristian Høgsberg <krh@redhat.com>
* firewire: optimize gap count with 1394b leaf nodesStefan Richter2007-07-09
| | | | | | | | Table-based gap count optimization cannot be used if 1394b repeater PHYs are present. But it does work with 1394b leaf nodes. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by: Kristian Høgsberg <krh@redhat.com>
* firewire: remove unused macroStefan Richter2007-07-09
| | | | Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
* firewire: missing newline in printkStefan Richter2007-07-09
| | | | | | | Also remove some errno printouts which will be shown by infrastructure code anyway. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
* firewire: fw-sbp2: remove unused struct memberStefan Richter2007-07-09
| | | | | | | cleanup after support of single-buffer requests was dropped Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by: Kristian Hoegsberg <krh@redhat.com>
* firewire: add Kconfig help on building both stacksStefan Richter2007-06-29
| | | | | | | | | | Alas that won't work so good, because nobody reads help texts. I thought about adding some crude multiple choice selection (build the old stack, build the new stack, build both stacks). It's possible, but it would introduce awkward dummy config variables. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
* firewire: fix async reception on big endian machinesStefan Richter2007-06-29
| | | | | | | | descriptor.data_address is little endian Tested-by: Olaf Hering <olh@suse.de> Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by: Kristian Høgsberg <krh@redhat.com>
* firewire: Only set client->iso_context if allocation was successful.Kristian Høgsberg2007-06-20
| | | | | | | | This patch fixes an OOPS on cdev release for an fd where iso context creation failed. Signed-off-by: Kristian Høgsberg <krh@redhat.com> Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
* firewire: fix hang after card ejectionStefan Richter2007-06-16
| | | | | Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by: Kristian Høgsberg <krh@redhat.com>
* firewire: Change struct fw_cdev_iso_packet to not use bitfields.Kristian Høgsberg2007-05-31
| | | | | | | | | The struct is part of the userspace interface and can not use bitfields. This patch replaces the bitfields with a __u32 'control' word and provides access macros to set the bits. Signed-off-by: Kristian Høgsberg <krh@redhat.com> Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
* firewire: Implement suspend/resume PCI driver hooks.Kristian Høgsberg2007-05-31
| | | | | | | | It's a low-impact design, that just makes suspend/resume look like a bus reset to the upper level drivers, but it should be sufficient. Signed-off-by: Kristian Høgsberg <krh@redhat.com> Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
* firewire: fw-sbp2: implement sysfs ieee1394_idStefan Richter2007-05-31
| | | | | | | | | The attribute /sys/bus/scsi/devices/*:*:*:*/ieee1394_id, as generated by the old sbp2 driver, is typically used to create persistently named links in /dev/disk/by-id. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by: Kristian Høgsberg <krh@redhat.com>
* firewire: fix return codeJeff Garzik2007-05-27
| | | | | | | | | | | | Fix this warning on x86-64 drivers/firewire/fw-cdev.c:798: warning: initialization from incompatible pointer type by making the return code of ioctl_send_request() the same as all the other ioctl_xxx() return codes. Signed-off-by: Jeff Garzik <jeff@garzik.org> Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
* firewire: prefix modules with firewire- instead of fw-Stefan Richter2007-05-27
| | | | | | | | | Of course everybody immediately associates "fw-" with FireWire, not firmware or firewall or whatever. But "firewire-" has a nice ring to it too. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Acked-by: Kristian Hoegsberg <krh@bitplanet.net>
* firewire: Add missing byteswapping for receive DMA programs.Kristian Høgsberg2007-05-27
| | | | | Signed-off-by: Kristian Hoegsberg <krh@redhat.com> Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
* missing mm.h in fw-ohciAl Viro2007-05-15
| | | | | | | need it for page_private(), not all targets have it pulled indirectly Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* firewire: Convert OHCI driver to use standard goto unwinding for error handling.Kristian Høgsberg2007-05-10
| | | | | Signed-off-by: Kristian Hoegsberg <krh@redhat.com> Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
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