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* [PATCH] ahci: Ensure that we don't grab both functionsroot2006-07-061-4/+11
| | | | | | | | | When we force the chip into dual fn mode so we get PATA and AHCI we must be sure we don't then do anything dumb like try and grab both with the AHCI driver. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [PATCH] libata-core.c: restore configuration boot messages in ā†µBorislav Petkov2006-07-061-5/+5
| | | | | | | | | | | ata_dev_configure(), v2 This one looks better, IMHO. This restores the default libata configuration messages printed during booting. Signed-off-by: <petkov@math.uni-muenster.de> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [PATCH] sata_sil24: add suspend/sleep supportTejun Heo2006-07-061-0/+25
| | | | | | | Add suspend/sleep support. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [PATCH] sata_sil24: separate out sil24_init_controller()Tejun Heo2006-07-061-45/+62
| | | | | | | | Separate out controller initialization from sil24_init_one() into sil24_init_controller(). This will be used by resume. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [PATCH] sata_sil: add suspend/sleep supportTejun Heo2006-07-061-0/+17
| | | | | | | Add suspend/sleep support. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [PATCH] sata_sil: separate out sil_init_controller()Tejun Heo2006-07-061-38/+48
| | | | | | | | Separate out controller initialization from sil_init_one() into sil_init_controller(). This will be used by resume. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [PATCH] libata: reimplement controller-wide PMTejun Heo2006-07-062-7/+286
| | | | | | | | | | | | | | | | | | | | Reimplement controller-wide PM. ata_host_set_suspend/resume() are defined to suspend and resume a host_set. While suspended, EHs for all ports in the host_set are pegged using ATA_FLAG_SUSPENDED and frozen. Because SCSI device hotplug is done asynchronously against the rest of libata EH and the same mutex is used when adding new device, suspend cannot wait for hotplug to complete. So, if SCSI device hotplug is in progress, suspend fails with -EBUSY. In most cases, host_set resume is followed by device resume. As each resume operation requires a reset, a single host_set-wide resume operation may result in multiple resets. To avoid this, resume waits upto 1 second giving PM to request resume for devices. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [PATCH] libata: reimplement per-dev PMTejun Heo2006-07-062-90/+115
| | | | | | | | | | | | | | | | | | | | | Reimplement per-dev PM. The original implementation directly put the device into suspended mode and didn't synchronize w/ EH operations including hotplug. This patch reimplements ata_scsi_device_suspend() and ata_scsi_device_resume() such that they request EH to perform the respective operations. Both functions synchronize with hotplug such that it doesn't operate on detached devices. Suspend waits for completion but resume just issues request and returns. This allows parallel wake up of devices and thus speeds up system resume. Due to sdev detach synchronization, it's not feasible to separate out EH requesting from sdev handling; thus, ata_device_suspend/resume() are removed and everything is implemented in the respective libata-scsi functions. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [PATCH] libata: implement PM EH actionsTejun Heo2006-07-062-3/+187
| | | | | | | | | | | | | | | | | | | | Implement two PM per-dev EH actions - ATA_EH_SUSPEND and ATA_EH_RESUME. Each action puts the target device into suspended mode and resumes from it respectively. Once a device is put to suspended mode, no EH operations other than RESUME is allowed on the device. The device will stay suspended till it gets resumed and thus reset and revalidated. To implement this, a new device state helper - ata_dev_ready() - is implemented and used in EH action implementations to make them operate only on attached & running devices. If all possible devices on a port are suspended, reset is skipped too. This prevents spurious events including hotplug events from disrupting suspended devices. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [PATCH] libata: implement ATA_EHI_NO_AUTOPSY and QUIETTejun Heo2006-07-062-16/+21
| | | | | | | | | | Implement ATA_EHI_NO_AUTOPSY and QUIET. These used to be implied by ATA_PFLAG_LOADING, but new power management and PMP support need to use these separately. e.g. Suspend/resume operations shouldn't print full EH messages and resume shouldn't be recorded as an error. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [PATCH] libata: clean up debounce parameters and improve parameter selectionTejun Heo2006-07-062-15/+12
| | | | | | | | | | | | | | The names of predefined debounce timing parameters didn't exactly match their usages. Rename to more generic names and implement param selection helper sata_ehc_deb_timing() which uses EHI_HOTPLUGGED to select params. Combined with the previous EHI_RESUME_LINK differentiation, this makes parameter selection accurate. e.g. user scan resumes link but normal deb param is used instead of hotplug param. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [PATCH] libata: implement ATA_EHI_RESUME_LINKTejun Heo2006-07-062-7/+9
| | | | | | | | | | | | | Implement ATA_EHI_RESUME_LINK, which indicates that the link needs to be resumed. This used to be implied by ATA_EHI_HOTPLUGGED. However, hotplug isn't the only event which requires link resume and separating this out allows other places to request link resume. This differentiation also allows better debounce timing selection. This patch converts user scan to use ATA_EHI_RESUME_LINK. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [PATCH] libata: replace ap_lock w/ ap->lock in ata_scsi_error()Tejun Heo2006-07-061-12/+11
| | | | | | | | | | | | | | | ap_lock was used because &ap->host_set->lock was too long and used a lot. Now that &ap->host_set->lock is replaced with ap->lock, there's no reason to keep ap_lock. [ed. note: that's not entirely true. ap_lock is a local variable, caching the results of a de-ref. In theory, if the compiler is smart enough, this patch is cosmetic. However, since this is not a fast path (it is the error path), this patch is nonetheless acceptable, even though it _may_ introduce a performance regression.] Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [PATCH] libata: fix ehc->i.action setting in ata_eh_autopsy()Tejun Heo2006-07-061-1/+1
| | | | | | | | | | ata_eh_autopsy() used to directly assign determined action mask to ehc->i.action thus overriding actions set by some of nested analyze functions. This patch makes ata_eh_autopsy() add action masks just as it's done in other places. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [PATCH] libata: add ap->pflags and move core dynamic flags to itTejun Heo2006-07-065-40/+40
| | | | | | | | | | ap->flags is way too clamped. Separate out core dynamic flags to ap->pflags. ATA_FLAG_DISABLED is a dynamic flag but left alone as it's referenced by a lot of LLDs and it's gonna be removed once all LLDs are converted to new EH. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [PATCH] libata: Conditionally set host->max_cmd_lenBrian King2006-07-061-6/+15
| | | | | | | | | In preparation for SAS attached SATA devices, which will not have a libata scsi_host, only setup host->max_cmd_len if ap->host exists. Signed-off-by: Brian King <brking@us.ibm.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [PATCH] sata_vsc: data_xfer should use mmioMartin Hicks2006-07-061-1/+1
| | | | | | | | | | | | | | | | Hi, sata_vsc is an MMIO device, and should use the correct data_xfer function. This problem was introduced by: commit a6b2c5d4754dc539a560fdf0d3fb78a14174394a Author: Alan Cox <alan@lxorguk.ukuu.org.uk> Date: Mon May 22 16:59:59 2006 +0100 [PATCH] PATCH: libata. Add ->data_xfer method Signed-off-by: Martin Hicks <mort@bork.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6Linus Torvalds2006-07-0451-2222/+3157
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (57 commits) [SCSI] fix error handling in scsi_io_completion [SCSI] qla1280: fix section mismatch warnings [SCSI] mptsas: eliminate ghost devices [SCSI] qla2xxx: make some more functions static [SCSI] small whitespace cleanup for qlogic driver [SCSI] mptbase: mpt_interrupt should return IRQ_NONE [SCSI] mptsas: make two functions static [SCSI] sg.c: Fix bad error handling in [SCSI] 53c700: fix breakage caused by the autosense update [SCSI] iscsi: add async notification of session events [SCSI] iscsi: pass target nr to session creation [SCSI] iscsi: break up session creation into two stages [SCSI] iscsi: rm channel usage from iscsi [SCSI] iscsi: fix session refcouting [SCSI] iscsi: convert iscsi_tcp to new set/get param fns [SCSI] iscsi: convert iser to new set/get param fns [SCSI] iscsi: fixup set/get param functions [SCSI] iscsi: add target discvery event to transport class [SCSI] st: remove unused st_buffer.in_use [SCSI] atp870u: reduce huge stack usage ...
| * Merge ../scsi-misc-2.6James Bottomley2006-07-0351-2222/+3157
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: drivers/scsi/nsp32.c drivers/scsi/pcmcia/nsp_cs.c Removal of randomness flag conflicts with SA_ -> IRQF_ global replacement. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| | * [SCSI] fix error handling in scsi_io_completionJames Bottomley2006-07-021-16/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There was a logic fault in scsi_io_completion() where zero transfer commands that complete successfully were sent to the block layer as not up to date. This patch removes the if (good_bytes > 0) gate around the successful completion, since zero transfer commands do have good_bytes == 0. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| | * [SCSI] qla1280: fix section mismatch warningsRandy Dunlap2006-07-011-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix section mismatch warnings: WARNING: drivers/scsi/qla1280.o - Section mismatch: reference to .init.data: from .text between 'qla1280_get_token' (at offset 0x2a16) and 'qla1280_probe_one' WARNING: drivers/scsi/qla1280.o - Section mismatch: reference to .init.data: from .text between 'qla1280_get_token' (at offset 0x2a3c) and 'qla1280_probe_one' Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| | * [SCSI] qla2xxx: make some more functions staticAdrian Bunk2006-07-013-10/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | Make some needlessly global functions static. Signed-off-by: Adrian Bunk <bunk@stusta.de> Acked-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| | * [SCSI] small whitespace cleanup for qlogic driverJesper Juhl2006-07-011-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a few spaces to MODULE_PARM_DESC() text for qla2xxx. Without these spaces text runs together when modinfo prints the text. Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com> Acked-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| | * [SCSI] sg.c: Fix bad error handling inIshai Rabinovitz2006-07-011-1/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I got a NULL derefrence in cdev_del+1 when called from sg_remove. By looking at the code of sg_add, sg_alloc and sg_remove (all in drivers/scsi/sg.c) I found out that sg_add is calling sg_alloc but if it fails afterwards it does not deallocate the space that was allocated in sg_alloc and the redundant entry has NULL in cdev. When sg_remove is being called, it tries to perform cdev_del to this NULL cdev and fails. Signed-off-by: Ishai Rabinovitz <ishai@mellanox.co.il> Acked-by: Douglas Gilbert <dougg@torque.net> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| | * [SCSI] 53c700: fix breakage caused by the autosense updateJames Bottomley2006-06-292-37/+53
| | | | | | | | | | | | | | | | | | | | | | | | A bit of a brown paper bag issue. The previous patch to remove the soon to be ripped out fields that were used in autosense actually broke the driver. This patch fixes it and has been tested (honestly). Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| | * [SCSI] iscsi: add async notification of session eventsMike Christie2006-06-291-82/+227
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds or modifies the transport class functions used to notify userspace of session state events. We modify the session addition up event and add a destruction event to notify userspace of session creation, relogin and destruction. And we modify the conn error event to be sent by broadcast since multiple listeners may want to listen for it. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| | * [SCSI] iscsi: pass target nr to session creationMike Christie2006-06-292-8/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | So the drivers do not use the channel numbers, but some do use the target numbers. We were just adding some goofy variable that just increases for the target nr. This is useless for software iscsi because it is always zero. And for qla4xxx the target nr is actually the index of the target/session in its FW or FLASH tables. We needed to expose this to userspace so apps could access those numbers so this patch just adds the target nr to the iscsi session creation functions. This way when qla4xxx's Hw thinks a session is at target nr 4 in its hw, it is exposed as that number in sysfs. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| | * [SCSI] iscsi: break up session creation into two stagesMike Christie2006-06-291-29/+68
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | qla4xxx is initialized in two steps like other HW drivers. It allocates the host, sets up the HW, then adds the host. For iscsi part of HW setup is setting up persistent iscsi sessions. At that time, the interupts are off and the driver is not completely set up so we just want to allocate them. We do not want to add them to sysfs and expose them to userspace because userspace could try to do lots of fun things with them like scanning and at that time the driver is not ready. So this patch breakes up the session creation like other functions that use the driver model in two the alloc and add parts. When the driver is ready, it can then add the sessions and userspace can begin using them. This also fixes a bug in the addition error patch where we forgot to do a get on the session. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| | * [SCSI] iscsi: rm channel usage from iscsiMike Christie2006-06-292-6/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I do not remember what I was thinking when we added the channel as a argument to the session create function. It was probably due to too much cut and paste work from the FC transport class. The channel is meaningless for iscsi drivers so this patch drops its usage everywhere in the iscsi related code. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| | * [SCSI] iscsi: fix session refcoutingMike Christie2006-06-292-9/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | iscsi_tcp and iser cannot be rmmod from the kernel when sessions are running because session removal is driven from userspace. For those modules we get a module reference when a session is created then drop it when the session is removed. For qla4xxx, they can jsut remove the sessions from the pci remove function like normal HW drivers, so this patch moves the module reference from the transport class functions shared by all drivers to the libiscsi functions only used be software iscsi modules. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| | * [SCSI] iscsi: convert iscsi_tcp to new set/get param fnsMike Christie2006-06-291-128/+24
| | | | | | | | | | | | | | | | | | | | | Convert iscsi_tcp to new lib functions. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| | * [SCSI] iscsi: fixup set/get param functionsMike Christie2006-06-292-166/+223
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Reduce duplication in the software iscsi_transport modules by adding a libiscsi function to handle the common grunt work. This also has the drivers return specifc -EXXX values for different errors so userspace can finally handle them in a sane way. Also just pass the sysfs buffers to the drivers so HW iscsi can get/set its string values, like targetname, and initiatorname. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| | * [SCSI] iscsi: add target discvery event to transport classMike Christie2006-06-291-0/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch from david.somayajulu@qlogic.com: Add target discovery event. We may have a setup where the iscsi traffic is on a different netowrk than the other network traffic. In this case we will want to do discovery though the iscsi card. This patch adds a event to the transport class that can be used by hw iscsi cards that support this. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| | * [SCSI] st: remove unused st_buffer.in_useMartin Habets2006-06-292-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I noticed that in_use in st_buffer is not used. The patch below against 2.6.17-rc3 removes it, assuming there is no future use for it. It was tested in a sparc SS20 with a DLT4000. Signed-off-by: Martin Habets <errandir_news@mph.eclipse.co.uk> Acked-by: Kai Mäkisara <kai.makisara@kolumbus.fi> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| | * Merge ../linux-2.6/James Bottomley2006-06-2826-137/+191
| | |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: drivers/scsi/aacraid/comminit.c Fixed up by removing the now renamed CONFIG_IOMMU option from aacraid Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| | * | [SCSI] atp870u: reduce huge stack usageRandy Dunlap2006-06-281-74/+83
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The atp870u driver is the largest stack eater reported by checkstack (on x86_864, allmodconfig). This converts the offending function to kmalloc+kfree struct atp_unit instead of allocating it on the stack. Was: 0x0000164c atp870u_probe [atp870u]: 3176 Now: 0x0000164c atp870u_probe [atp870u]: 408 Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| | * | [SCSI] scsi_transport_sas: introduce a sas_port entityJames Bottomley2006-06-282-41/+340
| | | | | | | | | | | | | | | | | | | | | | | | | | | | this patch introduces a port object, separates out ports and phys, with ports becoming the primary objects of the tree. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| | * | [SCSI] scsi: Device scanning oops for offlined devices (resend)Brian King2006-06-282-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If a device gets offlined as a result of the Inquiry sent during scanning, the following oops can occur. After the disk gets put into the SDEV_OFFLINE state, the error handler sends back the failed inquiry, which wakes the thread doing the scan. This starts a race between the scanning thread freeing the scsi device and the error handler calling scsi_run_host_queues to restart the host. Since the disk is in the SDEV_OFFLINE state, scsi_device_get will still work, which results in __scsi_iterate_devices getting a reference to the scsi disk when it shouldn't. The following execution thread causes the oops: CPU 0 (scan) CPU 1 (eh) --------------------------------------------------------- scsi_probe_and_add_lun .... scsi_eh_offline_sdevs scsi_eh_flush_done_q scsi_destroy_sdev scsi_device_dev_release scsi_restart_operations scsi_run_host_queues __scsi_iterate_devices get_device scsi_device_dev_release_usercontext scsi_run_queue <---OOPS---> The patch fixes this by changing the state of the sdev to SDEV_DEL before doing the final put_device, which should prevent the race from occurring. Original oops follows: Badness in kref_get at lib/kref.c:32 Call Trace: [C00000002F4476D0] [C00000000000EE20] .show_stack+0x68/0x1b0 (unreliable) [C00000002F447770] [C00000000037515C] .program_check_exception+0x1cc/0x5a8 [C00000002F447840] [C00000000000446C] program_check_common+0xec/0x100 Exception: 700 at .kref_get+0x10/0x28 LR = .kobject_get+0x20/0x3c [C00000002F447B30] [C00000002F447BC0] 0xc00000002f447bc0 (unreliable) [C00000002F447BB0] [C000000000254BDC] .get_device+0x20/0x3c [C00000002F447C30] [D000000000063188] .scsi_device_get+0x34/0xdc [scsi_mod] [C00000002F447CC0] [D0000000000633EC] .__scsi_iterate_devices+0x50/0xbc [scsi_mod] [C00000002F447D60] [D00000000006A910] .scsi_run_host_queues+0x34/0x5c [scsi_mod] [C00000002F447DF0] [D000000000069054] .scsi_error_handler+0xdb4/0xe44 [scsi_mod] [C00000002F447EE0] [C00000000007B4E0] .kthread+0x128/0x178 [C00000002F447F90] [C000000000025E84] .kernel_thread+0x4c/0x68 Unable to handle kernel paging request for <7>PCI: Enabling device: (0002:41:01.1), cmd 143 data at address 0x000001b8 Faulting instruction address: 0xd0000000000698e4 sym1: <1010-66> rev 0x1 at pci 0002:41:01.1 irq 216 sym1: No NVRAM, ID 7, Fast-80, LVD, parity checking sym1: SCSI BUS has been reset. scsi2 : sym-2.2.2 cpu 0x0: Vector: 300 (Data Access) at [c00000002f447a30] pc: d0000000000698e4: .scsi_run_queue+0x2c/0x218 [scsi_mod] lr: d00000000006a904: .scsi_run_host_queues+0x28/0x5c [scsi_mod] sp: c00000002f447cb0 msr: 9000000000009032 dar: 1b8 dsisr: 40000000 current = 0xc0000000045fecd0 paca = 0xc00000000048ee80 pid = 1123, comm = scsi_eh_1 enter ? for help [c00000002f447d60] d00000000006a904 .scsi_run_host_queues+0x28/0x5c [scsi_mod] [c00000002f447df0] d000000000069054 .scsi_error_handler+0xdb4/0xe44 [scsi_mod] [c00000002f447ee0] c00000000007b4e0 .kthread+0x128/0x178 [c00000002f447f90] c000000000025e84 .kernel_thread+0x4c/0x68 Signed-off-by: Brian King <brking@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| | * | [SCSI] scsi: Add allow_restart sysfs class attributeBrian King2006-06-281-0/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is a resend of a patch I generated in response to an email sent by Ruben Faelens <parasietje@gmail.com>. His original email to linux-scsi requested a method in which he could spin down a scsi disk when not in use and have the kernel automatically spin it back up when an I/O was generated to the disk. The infrastructure to automatically spin a disk up has been in the scsi error handler for some time now, but it is not enabled by default. This patch adds an sd sysfs attribute which allows userspace to enable this behavior. Signed-off-by: Brian King <brking@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| | * | [SCSI] fc transport: bug fix: correct referencesJames Smart2006-06-271-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Original post was incorrect as it didn't realize that we already had a self-referenc due to device_initialize(), and we were really only missing the put on our own reference. This was hidden by the other bug which had the midlayer reusing stargets after they were already free, which was doing too many puts on our rport. Updating FC transport for: - Add put in fc_rport_final_delete(), to release the rport. Prior, we were leaving the rport with a reference, thus the shost with references, etc. If the driver was unloaded, shosts and rports remained, along with work threads, etc - Fix fc_rport_create failure path - too many put's on parent - Add commenting to easily track ref taking. Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| | * | [SCSI] update max sdev block limitJames Smart2006-06-272-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Updated patch to address comments from Pat Mansfield and Michael Reed: Bumped max to 600 (10mins). Set default dev_loss_tmo to a value other than the max (30s). Signed-off-by: James Smart <James.Smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| | * | [SCSI] fc transport: resolve scan vs delete deadlocksJames Smart2006-06-271-13/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In a prior posting to linux-scsi on the fc transport and workq deadlocks, we noted a second error that did not have a patch: http://marc.theaimsgroup.com/?l=linux-scsi&m=114467847711383&w=2 - There's a deadlock where scsi_remove_target() has to sit behind scsi_scan_target() due to contention over the scan_lock(). Subsequently we posted a request for comments about the deadlock: http://marc.theaimsgroup.com/?l=linux-scsi&m=114469358829500&w=2 This posting resolves the second error. Here's what we now understand, and are implementing: If the lldd deletes the rport while a scan is active, the sdev's queue is blocked which stops the issuing of commands associated with the scan. At this point, the scan stalls, and does so with the shost->scan_mutex held. If, at this point, if any scan or delete request is made on the host, it will stall waiting for the scan_mutex. For the FC transport, we queue all delete work to a single workq. So, things worked fine when competing with the scan, as long as the target blocking the scan was the same target at the top of our delete workq, as the delete workq routine always unblocked just prior to requesting the delete. Unfortunately, if the top of our delete workq was for a different target, we deadlock. Additionally, if the target blocking scan returned, we were unblocking it in the scan workq routine, which really won't execute until the existing stalled scan workq completes (e.g. we're re-scheduling it while it is in the midst of its execution). This patch moves the unblock out of the workq routines and moves it to the context that is scheduling the work. This ensures that at some point, we will unblock the target that is blocking scan. Please note, however, that the deadlock condition may still occur while it waits for the transport to timeout an unblock on a target. Worst case, this is bounded by the transport dev_loss_tmo (default: 30 seconds). Finally, Michael Reed deserves the credit for the bulk of this patch, analysis, and it's testing. Thank you for your help. Note: The request for comments statements about the gross-ness of the scan_mutex still stand. Signed-off-by: Michael Reed <mdr@sgi.com> Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| | * | [SCSI] Block I/O while SG reset operation in progress - lpfc portionJames Smart2006-06-273-22/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This removes the duplicate functionality which had been added to the lpfc driver. Signed-off-by: James Smart <James.Smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| | * | [SCSI] Block I/O while SG reset operation in progress - the midlayer patchJames Smart2006-06-271-0/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The scsi midlayer portion of the patch Signed-off-by: James Smart <James.Smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| | * | [SCSI] aacraid: remove x86_64 IOMMU dependent codeSalyzyn, Mark2006-06-261-22/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This may seem like a DILLIGAF, but after chatting with the F/W folks, there is no harm in dropping the page calculation as denoted in the enclosed patch for these older adapters in this new age of 4GB+ memory sticks. Any resource optimization within the old-old-old adapters for systems with less than 4G of memory is of little consequence. The existing AAC_QUIRK_31BIT flag in linit.c should look after the rest of the legacy hardware DMA limitations. Signed-off-by: Mark Salyzyn <aacraid@adaptec.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| | * | [SCSI] random: remove redundant SA_SAMPLE_RANDOM from NinjaSCSIMatt Mackall2006-06-262-3/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The scsi layer is already calling add_disk_randomness in scsi_end_request. Signed-off-by: Matt Mackall <mpm@selenic.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| | * | [SCSI] Bogus disk geometry on large disksAlan Cox2006-06-261-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We currently stuff a truncated size into the geometry logic and return the result which can produce bizarre reports for a 4Tb array. Since that mapping logic isn't useful for disks that big don't try and map this way at all. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| | * | [SCSI] Add scsi_add_host() failure handling for nsp32GOTO Masanori2006-06-261-1/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add scsi_add_host() failure handling for nsp32 and silence warning. drivers/scsi/nsp32.c:2888: warning: ignoring return value of 'Scsi_add_host', declared with attribute warn_unused_result Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com> Signed-off-by: GOTO Masanori <gotom@sanori.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| | * | [SCSI] lpfc: sparse NULL warningsRandy Dunlap2006-06-262-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | From: Randy Dunlap <rdunlap@xenotime.net> Fix sparse warnings: use NULL instead of 0 for pointers: drivers/scsi/lpfc/lpfc_els.c:827:56: warning: Using plain integer as NULL pointer drivers/scsi/lpfc/lpfc_els.c:2781:18: warning: Using plain integer as NULL pointer drivers/scsi/lpfc/lpfc_els.c:2782:18: warning: Using plain integer as NULL pointer drivers/scsi/lpfc/lpfc_init.c:951:21: warning: Using plain integer as NULL pointer drivers/scsi/lpfc/lpfc_init.c:956:20: warning: Using plain integer as NULL pointer Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Acked-by: James Smart <James.Smart@Emulex.Com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| | * | [SCSI] qla2xxx: Update version number to 8.01.05-k3.Andrew Vasquez2006-06-261-1/+1
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-18 05:08:13 +0100