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* [SCSI] ibmvscsi: convert to use the data buffer accessorsFUJITA Tomonori2007-07-15
| | | | | | | | | | | - remove the unnecessary map_single path. - convert to use the new accessors for the sg lists and the parameters. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: Santiago Leon <santil@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] ibmvscsi: fix timeout bugsFUJITA Tomonori2007-06-25
| | | | | | | | The viosrp_crq timeout field is in seconds. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: Santiago Leon <santil@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] ibmvscsi: Abort path fixBrian King2007-06-17
| | | | | | | | | Since it is completely possible for scsi core to call a LLDD's eh_abort function after the command has completed, fix ibmvscsi to return SUCCESS if this is the case. Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] ibmvscsi: Misc. locking fixesBrian King2007-06-17
| | | | | | | | | | Fix a couple locking bugs discovered during code inspection. ibmvscsi_send_srp_event needs to be called with the host lock held. This patch fixes a couple paths in the code where this wasn't true. Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] ibmvscsi: Add eh_host_reset_handlerBrian King2007-06-17
| | | | | | | | | | | Adds an eh_host_reset_handler to ibmvscsi which resets the connection to the vscsi server. This patch also adds a timer to internally issues commands to prevent client hangs in the case of a misbehaving server. Tested by modifying the VIOS such that it would occasionally drop one or more request in sequence. Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] ibmvscsi: Enhanced error loggingBrian King2007-06-17
| | | | | | | | | | | | | | | | Converts ibmvscsi to use dev_printk and friends to simplify debugging. ibmvscsi adapter initialization now looks like this: ibmvscsi 30000005: SRP_VERSION: 16.a ibmvscsi 30000005: partner initialization complete ibmvscsi 30000005: sent SRP login ibmvscsi 30000005: SRP_LOGIN succeeded Additionally, this patch adds the logging of a couple return codes in a couple logs. Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] ibmvscsi: Remove unnecessary map_sg checkBrian King2007-06-17
| | | | | | | | | Since sg_tablesize is set appropriately in the scsi host template, remove the unnecessary check to make sure it is not exceeded following the dma_map_sg call. Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] ibmvscsi: Changeable queue depthBrian King2007-05-29
| | | | | | | Adds support for a changeable queue depth to ibmvscsi. Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* Merge branch 'linux-2.6'Paul Mackerras2007-05-07
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| * Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6Linus Torvalds2007-05-05
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (87 commits) [SCSI] fusion: fix domain validation loops [SCSI] qla2xxx: fix regression on sparc64 [SCSI] modalias for scsi devices [SCSI] sg: cap reserved_size values at max_sectors [SCSI] BusLogic: stop using check_region [SCSI] tgt: fix rdma transfer bugs [SCSI] aacraid: fix aacraid not finding device [SCSI] aacraid: Correct SMC products in aacraid.txt [SCSI] scsi_error.c: Add EH Start Unit retry [SCSI] aacraid: [Fastboot] Panics for AACRAID driver during 'insmod' for kexec test. [SCSI] ipr: Driver version to 2.3.2 [SCSI] ipr: Faster sg list fetch [SCSI] ipr: Return better qc_issue errors [SCSI] ipr: Disrupt device error [SCSI] ipr: Improve async error logging level control [SCSI] ipr: PCI unblock config access fix [SCSI] ipr: Fix for oops following SATA request sense [SCSI] ipr: Log error for SAS dual path switch [SCSI] ipr: Enable logging of debug error data for all devices [SCSI] ipr: Add new PCI-E IDs to device table ...
| | * [SCSI] tgt: fix rdma transfer bugsBastian Blank2007-04-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | - ibmstgt hits the max rdma transfer size (128k). - libsrp returns a rdma transfer error properly. Signed-off-by: Bastian Blank <bastian@waldi.eu.org> Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| | * [SCSI] ibmvscsi: add slave_configure to allow device restartRobert Jennings2007-04-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fixed the kernel-doc comment for ibmvscsi_slave_configure. Thanks to Randy Dunlap for pointing this out. Adding a slave_configure function for the driver. Now the disks can be restarted by the scsi mid-layer when the are disconnected and reconnected. Signed-off-by: "Robert Jennings" <rcj@linux.vnet.ibm.com> Signed-off-by: "Santiago Leon" <santil@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| | * [SCSI] ibmvscsi: allow for dynamic adjustment of server request_limitRobert Jennings2007-04-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The request limit calculations used previously on the client failed to mirror the state of the server. Additionally, when a value < 3 was provided there could be problems setting can_queue and handling abort and reset commands. Signed-off-by: "Robert Jennings" <rcj@linux.vnet.ibm.com> Signed-off-by: Santiago Leon <santil@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| | * [SCSI] tgt: fix sesnse buffer problemsFUJITA Tomonori2007-03-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch simplify the way to notify LLDs of the command completion and addresses the following sense buffer problems: - can't handle both data and sense. - forces user-space to use aligned sense buffer tgt copies sense_data from userspace to cmnd->sense_buffer (if necessary), maps user-space pages (if necessary) and then calls host->transfer_response (host->transfer_data is removed). Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* | | [POWERPC] Rename get_property to of_get_property: driversStephen Rothwell2007-05-02
|/ / | | | | | | | | | | | | | | These are all the remaining instances of get_property. Simple rename of get_property to of_get_property. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | Revert "[POWERPC] Rename get_property to of_get_property: drivers"Paul Mackerras2007-04-26
| | | | | | | | | | | | This reverts commit d05c7a80cf39ae7d0f8d0c3e47c93d51fcd393d3, which included changes which should go via other subsystem maintainers.
* | [POWERPC] Remove old interface find_path_deviceStephen Rothwell2007-04-24
| | | | | | | | | | | | | | Replaced by of_find_node_by_path. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] Rename get_property to of_get_property: driversStephen Rothwell2007-04-12
| | | | | | | | | | | | Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] get_property returns constStephen Rothwell2007-04-12
|/ | | | | | | This just tidies up some of the remains. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] Scheduled removal of SA_xxx interrupt flags fixupsThomas Gleixner2007-02-14
| | | | | | | | | | | | | | | | | | | | | | The obsolete SA_xxx interrupt flags have been used despite the scheduled removal. Fixup the remaining users. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Jeff Garzik <jeff@garzik.org> Cc: Wim Van Sebroeck <wim@iguana.be> Cc: Roland Dreier <rolandd@cisco.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: Greg KH <greg@kroah.com> Cc: Dave Airlie <airlied@linux.ie> Cc: James Simmons <jsimmons@infradead.org> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [PATCH] powerpc iseries link error in allmodconfigJudith Lebzelter2006-12-30
| | | | | | | | | | Choose rpa_vscsi.c over iseries_vscsi.c when building both pseries and iseries. This fixes a link error. Signed-off-by: Judith Lebzelter <judith@osdl.org> Acked-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ... and then some more work_struct-induced breakage (ibmvscsi)Al Viro2006-12-06
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [SCSI] scsi tgt: IBM eServer i/pSeries virtual SCSI target driverFUJITA Tomonori2006-12-03
| | | | | | | | | | | | This is IBM Virtual SCSI target driver for tgt. The driver is based on the original ibmvscsis driver: http://lkml.org/lkml/2005/10/17/99 Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: Santiago Leon <santil@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] ibmvscsi: correctly reenable CRQSantiago Leon2006-10-25
| | | | | | | | | | | | The "ibmvscsi: treat busy and error conditions separately" patch submitted by Dave Boutcher back in June incorrectly reenables the CRQ. The broken logic causes the adapter to get disabled if the CRQ connection happens to close temporarily. This patch "fixes that obviously wrong logic check" (Dave's words). Signed-off-by: Santiago Leon <santil@us.ibm.com> Signed-off-by: David Boutcher <sleddog@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* IRQ: Maintain regs pointer globally rather than passing to IRQ handlersDavid Howells2006-10-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Maintain a per-CPU global "struct pt_regs *" variable which can be used instead of passing regs around manually through all ~1800 interrupt handlers in the Linux kernel. The regs pointer is used in few places, but it potentially costs both stack space and code to pass it around. On the FRV arch, removing the regs parameter from all the genirq function results in a 20% speed up of the IRQ exit path (ie: from leaving timer_interrupt() to leaving do_IRQ()). Where appropriate, an arch may override the generic storage facility and do something different with the variable. On FRV, for instance, the address is maintained in GR28 at all times inside the kernel as part of general exception handling. Having looked over the code, it appears that the parameter may be handed down through up to twenty or so layers of functions. Consider a USB character device attached to a USB hub, attached to a USB controller that posts its interrupts through a cascaded auxiliary interrupt controller. A character device driver may want to pass regs to the sysrq handler through the input layer which adds another few layers of parameter passing. I've build this code with allyesconfig for x86_64 and i386. I've runtested the main part of the code on FRV and i386, though I can't test most of the drivers. I've also done partial conversion for powerpc and MIPS - these at least compile with minimal configurations. This will affect all archs. Mostly the changes should be relatively easy. Take do_IRQ(), store the regs pointer at the beginning, saving the old one: struct pt_regs *old_regs = set_irq_regs(regs); And put the old one back at the end: set_irq_regs(old_regs); Don't pass regs through to generic_handle_irq() or __do_IRQ(). In timer_interrupt(), this sort of change will be necessary: - update_process_times(user_mode(regs)); - profile_tick(CPU_PROFILING, regs); + update_process_times(user_mode(get_irq_regs())); + profile_tick(CPU_PROFILING); I'd like to move update_process_times()'s use of get_irq_regs() into itself, except that i386, alone of the archs, uses something other than user_mode(). Some notes on the interrupt handling in the drivers: (*) input_dev() is now gone entirely. The regs pointer is no longer stored in the input_dev struct. (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does something different depending on whether it's been supplied with a regs pointer or not. (*) Various IRQ handler function pointers have been moved to type irq_handler_t. Signed-Off-By: David Howells <dhowells@redhat.com> (cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
* Merge branch 'merge'Paul Mackerras2006-07-31
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| * [SCSI] ibmvscsi: handle inactive SCSI target during probeDave C Boutcher2006-07-09
| | | | | | | | | | | | | | Without this patch we register an interrupt with request_irq, but then return a bad return code from the module probe. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] ibmvscsi: allocate lpevents for ibmvscsi on iseriesDave C Boutcher2006-07-09
| | | | | | | | | | | | | | | | Allocate the correct number of lp events when running ibmvscsi on legacy iseries Signed-off-by: Dave Boutcher <sleddog@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* | [POWERPC] scsi: Constify & voidify get_property()Jeremy Kerr2006-07-31
|/ | | | | | | | | | | Now that get_property() returns a void *, there's no need to cast its return value. Also, treat the return value as const, so we can constify get_property later. powerpc-specific scsi driver changes. Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [SCSI] ibmvscsi: treat busy and error conditions separatelyDave C Boutcher2006-06-26
| | | | | | | | | This patch fixes a condition where ibmvscsi treats a transport error as a "busy" condition, so no errors were returned to the scsi mid-layer. In a RAID environment this means that I/O hung rather than failing over. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* Merge ../linux-2.6James Bottomley2006-06-10
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| * [SCSI] ibmvscsi: fix leak when failing to send srp eventFUJITA Tomonori2006-04-28
| | | | | | | | | | Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* | [SCSI] ibmvscsi: convert kmalloc + memset to kcallocFUJITA Tomonori2006-04-14
|/ | | | | | | | Convert kmalloc + memset to kcalloc in ibmvscsi Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Dave Boutcher <sleddog@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] ibmvscsi: remove drivers/scsi/ibmvscsi/srp.hFUJITA Tomonori2006-04-13
| | | | | | | It's no longer needed after the convrsion to use the linux srp.h file. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] ibmvscsi: convert the ibmvscsi driver to use include/scsi/srp.hFUJITA Tomonori2006-04-13
| | | | | Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] ibmvscsi: prevent scsi commands being sent in invalid stateDave C Boutcher2006-04-13
| | | | | | | | | | | | There is a window where we can be re-enabling an adapter, but still allow SCSI commands to be sent to the target. This fix sets our window (request_limit) to -1 as soon as we know the adapter is being reenabled, and closes a very teeny tiny window where we could set the window back to 1 before we grab a lock. Signed-off-by: Dave Boutcher <sleddog@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [PATCH] powerpc/pseries: Change H_StudlyCaps to H_SHOUTING_CAPSSegher Boessenkool2006-04-01
| | | | | | | Also cleans up some nearby whitespace problems. Signed-off-by: Segher Boessenkool <segher@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [SCSI] ibmvscsi: handle re-enable firmware messageDave C Boutcher2006-01-26
| | | | | | | | | | New versions of the Power5 firmware can send a "re-enable" message to the virtual scsi adapter. This fix makes us handle the message correctly. Without it, the driver goes catatonic and the system crashes unpleasantly. Signed-off-by: Dave Boutcher <sleddog@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] ibmvscsi kexec fixDave C Boutcher2005-12-07
| | | | | | | | | | | | | This makes ibmvscsi work correctly with the recent set of kexec patches that went in. This is based on work by Michael Ellerman, who chased this initially. He validated that it works during kexec. Handle kexec correctly in ibmvscsi. During kexec the adapter will not get cleaned up correctly, so we may need to reset it to make it sane again. Signed-off-by: Dave Boutcher <sleddog@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* merge filename and modify references to iseries/vio.hKelly Daly2005-11-01
| | | | Signed-off-by: Kelly Daly <kelly@au.ibm.com>
* merge filename and modify references to iseries/hv_types.hKelly Daly2005-11-01
| | | | Signed-off-by: Kelly Daly <kelly@au.ibm.com>
* merge filename and modify references to iseries/hv_lp_event.hKelly Daly2005-11-01
| | | | Signed-off-by: Kelly Daly <kelly@au.ibm.com>
* merge filename and modify reference to iseries/hv_lp_config.hKelly Daly2005-11-01
| | | | Signed-off-by: Kelly Daly <kelly@au.ibm.com>
* powerpc: set the driver.owner field for all vio driversStephen Rothwell2005-10-24
| | | | Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
* powerpc: don't duplicate name between vio_driver and device_driverStephen Rothwell2005-10-24
| | | | | | | Just set the name field directly in the device_driver structure contained in the vio_driver struct. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
* [SCSI] ibmvscsi compatibility fixDave C Boutcher2005-09-13
| | | | | | | | | | | | | | Linda Xie ever so gently pointed out that she had a patch to preserve compatibility with older SLES targets, and I told her we didn't need to push it to mainline. This patch explicitly checks the version of the IBMVSCSI target and ensures that large scatterlists are not sent to older targets. Signed-off-by: Linda Xie <lxie@us.ibm.com> Signed-off-by: Dave Boutcher <boutcher@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-for-linus-2.6 Linus Torvalds2005-09-07
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| * Merge by hand (conflicts in sd.c)James Bottomley2005-09-06
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| | * [SCSI] ibmvscsi: handle large scatter/gather listsJames Bottomley2005-09-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The maximum size of a scatter-gather list that the current IBM VSCSI Client can handle is 10. This patch adds large scatter-gather support to the client so that it is capable of handling up to SG_ALL(255) number of requests in the scatter-gather list. Signed-off-by: Linda Xie <lxie@us.ibm.com> Acked by: Dave C Boutcher <sleddog@us.ibm.com> Rejections fixed up and Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * | Merge HEAD from ../scsi-misc-2.6-tmp James Bottomley2005-08-28
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