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* [S390] Get rid of additional_cpus kernel parameter.Heiko Carstens2008-01-26
| | | | | | | | | It caused only a lot of confusion. From now on cpu hotplug of up to NR_CPUS will work by default. If somebody wants to limit that then the possible_cpus parameter can be used. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* [S390] Use new style spinlock initializer in __RWSEM_INITIALIZER.Heiko Carstens2008-01-26
| | | | | Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* [S390] Remove owner_pc member from raw_spinlock_t.Heiko Carstens2008-01-26
| | | | | | | | | | Used to contain the address of the holder of the lock. But since the spinlock code is not inlined anymore all locks contain the same address anyway. And since in addtition nobody complained about that for ages its obviously unused. So remove it. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* [S390] Get rid of HOLES_IN_ZONE requirement.Heiko Carstens2008-01-26
| | | | | | | Align everything to MAX_ORDER so we can get rid of the extra checks. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* [S390] Print kernel version in dump_stack() and show_regs().Heiko Carstens2008-01-26
| | | | | | | | Also print PREEMPT and/or SMP if the kernel was configured that way. Makes s390 look a bit more like other architectures. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* [S390] Change vmalloc defintionsChristian Borntraeger2008-01-26
| | | | | | | | | | | | | | Currently the vmalloc area starts at a dynamic address depending on the memory size. There was also an 8MB security hole after the physical memory to catch out-of-bounds accesses. We can simplify the code by putting the vmalloc area explicitely at the top of the kernel mapping and setting the vmalloc size to a fixed value of 128MB/128GB for 31bit/64bit systems. Part of the vmalloc area will be used for the vmem_map. This leaves an area of 96MB/1GB for normal vmalloc allocations. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* [S390] Avoid warnings in tlblush.hMartin Schwidefsky2008-01-26
| | | | Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* [S390] Fix tlb flushing with idte.Martin Schwidefsky2008-01-26
| | | | | | | | | | | | The clear-by-asce operation of the idte instruction gets an asce (address-space-control-element) as argument to specify which TLBs need to get flushed. The current code passes a plain pointer to the start of the pgd without the additional bits which would make the pointer an asce. The current machines don't mind the difference but a future model might want to use the designation type control bits in the asce as a filter for the TLBs to flush. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* [S390] sclp: convert channel path configure code to use sync interface.Heiko Carstens2008-01-26
| | | | | Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* [S390] Standby cpu activation/deactivation.Heiko Carstens2008-01-26
| | | | | | | | | | | | | | | | | | | | | | | Add a new interface so that cpus can be put into standby state and configured state. Only offline cpus can be put into standby state or configured state. For that the new percpu sysfs attribute "configure" must be used. To put a cpu in standby state a "0" must be written to the attribute. In order to switch it into configured state a "1" must be written to the attribute. Only cpus in configured state can be brought online. In addition this patch introduces a static mapping of physical to logical cpus. As a result only the sysfs directories of present cpus will be created. To scan for new cpus the new sysfs attribute "rescan" must be used. Writing to /sys/devices/system/cpu/rescan will trigger a rescan of cpus and will create directories for new cpus. On IPL only configured cpus will be used. And on reboot/shutdown all cpus will remain in their current state (configured/standby). Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* [S390] sclp: sysfs interface for SCLP cpiMichael Ernst2008-01-26
| | | | | Signed-off-by: Michael Ernst <mernst@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* [S390] qdio: set QDIO_ACTIVATE_TIMEOUT to 5sUrsula Braun2008-01-26
| | | | | | | | Current definition of QDIO_ACTIVATE_TIMEOUT results in value 0. Thus it may cause endless wait in function qdio_activate(). Signed-off-by: Ursula Braun <braunu@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* [S390] qdio: Remove double checked value.Sebastian Ott2008-01-26
| | | | | Signed-off-by: Sebastian Ott <sebott@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* [S390] cio: introduce timed recovery procedurePeter Oberparleiter2008-01-26
| | | | | | | | | Add a timed recovery procedure to reactivate ccw devices in cases where HW/VM events are not sufficient to allow for proper recovery of reappearing channel paths. Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* [S390] cio: memory leak in cio processingMichael Ernst2008-01-26
| | | | | | | | Allocated kernel memory for locks is not freed in case of subchannel found to be invalid. Signed-off-by: Michael Ernst <mernst@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* [S390] cio: Fix ungroup vs. machine check race in ccwgroup.Cornelia Huck2008-01-26
| | | | | | | | | | | There are two ways for a ccwgroup device to be unregistered: Via the ungroup attribute, or when on of the slave devices is killed by a machine check. As we have to unregister the ccwgroup device via a callback, we'll now have to check whether it hasn't been already unregistered because of a machine check. Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* [S390] cio: Delete timer in ccw_device_verify_done().Cornelia Huck2008-01-26
| | | | | | | | Make sure pending timers are always deleted, even if we don't go through ccw_device_done(). Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* [S390] cio: reduce cpu utilization during device scanPeter Oberparleiter2008-01-26
| | | | | | | | | | Minimize calls to cpu intensive function get_subchannel_by_schid() by introducing function for_each_subchannel_staged() which temporarily caches the information about registered subchannels in a bitmap. Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* [S390] cio: Set driver->owner on css, ccw and ccwgroup busses.Cornelia Huck2008-01-26
| | | | | | | | Set the owner field in the embedded struct device_driver to the value provided in the {css,ccw,ccwgroup}_driver. Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* [S390] cio: Use dev_{g,s}et_drvdata().Cornelia Huck2008-01-26
| | | | | | | | Also define helpers sch_{g,s}et_cdev() to make the intention more clear. Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* [S390] cio: I/O subchannel specific fields.Cornelia Huck2008-01-26
| | | | | | | | | Some fields may be !0 only for I/O subchannels. Add some checks where required. Also adapt cio_enable_subchannel() to make the caller specify the intparm, which makes it more generic. Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* [S390] cio: Extend adapter interrupt interface.Peter Oberparleiter2008-01-26
| | | | | | | | | | | | | | | From: Cornelia Huck <cornelia.huck@de.ibm.com> Change the adapter interrupt interface in order to allow multiple adapter interrupt handlers to be registered. Indicators are now allocated by cio instead of the device driver. The qdio parts have been Acked-by: Ursula Braun <ubraun@linux.vnet.ibm.com> Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* [S390] cio: Introduce subchannel->private.Cornelia Huck2008-01-26
| | | | | | | | | | | | Introduce a private pointer in struct subchannel to store per-subchannel type data (cannot use dev->priv since this is already used for something else). Create a new header io_sch.h for I/O subchannel specific structures and instructions. Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* [S390] cio: Cleanup debug feature usage.Cornelia Huck2008-01-26
| | | | | | | | | | | | Cleanup cio_debug.h. Also make CIO_DEBUG add the "cio:" prefix to the printk string so that it isn't needed for the debug feature. Fix outdated comments for cio_debug_init() and clean it up. Enlarge cio_crw to the same size as cio_msg so we may actually find some relevant information there. Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* [S390] cio: Add css_driver_{register,unregister}.Cornelia Huck2008-01-26
| | | | | | | | | Add wrapper functions for driver_register and driver_unregister so that css drivers don't need to muck with struct device_driver directly. Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* [S390] cio: Reset sch->driver.Cornelia Huck2008-01-26
| | | | | | | | sch->driver needs to be reset to NULL on failed probe and after remove. We also need to check for sch->driver on shutdown. Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* [S390] cio: css_driver: Use consistent parameters.Cornelia Huck2008-01-26
| | | | | | | | Make all callbacks in css_driver take a struct subchannel (and not a struct device). Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* [S390] cio: Use helpers instead of container_of().Cornelia Huck2008-01-26
| | | | | | | | - Introduce to_cssdriver. - Use to_xxx instead of container_of where possible. Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* [S390] cio: Dump ccw device information in case of timeout.Sebastian Ott2008-01-26
| | | | | | | | | Information about a ccw device will be dumped in case of a ccw timeout. This can be enabled with the kernel parameter ccw_timeout_log. Signed-off-by: Sebastian Ott <sebott@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* [S390] Cleanup in Documentation/kernel-parameters.txt.Sebastian Ott2008-01-26
| | | | | Signed-off-by: Sebastian Ott <sebott@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6Linus Torvalds2008-01-25
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (200 commits) [SCSI] usbstorage: use last_sector_bug flag universally [SCSI] libsas: abstract STP task status into a function [SCSI] ultrastor: clean up inline asm warnings [SCSI] aic7xxx: fix firmware build [SCSI] aacraid: fib context lock for management ioctls [SCSI] ch: remove forward declarations [SCSI] ch: fix device minor number management bug [SCSI] ch: handle class_device_create failure properly [SCSI] NCR5380: fix section mismatch [SCSI] sg: fix /proc/scsi/sg/devices when no SCSI devices [SCSI] IB/iSER: add logical unit reset support [SCSI] don't use __GFP_DMA for sense buffers if not required [SCSI] use dynamically allocated sense buffer [SCSI] scsi.h: add macro for enclosure bit of inquiry data [SCSI] sd: add fix for devices with last sector access problems [SCSI] fix pcmcia compile problem [SCSI] aacraid: add Voodoo Lite class of cards. [SCSI] aacraid: add new driver features flags [SCSI] qla2xxx: Update version number to 8.02.00-k7. [SCSI] qla2xxx: Issue correct MBC_INITIALIZE_FIRMWARE command. ...
| * [SCSI] usbstorage: use last_sector_bug flag universallyHans de Goede2008-01-25
| | | | | | | | | | | | | | | | | | | | | | | | This patch sets the last_sector_bug flag to 1 for all USB disks. This is needed to makes the cardreader on various HP multifunction printers work. Since the performance impact is negible we set this flag for all USB disks to avoid an unusual_devs.h nightmare. Signed-off-by: Hans de Goede <j.w.r.degoede@hhs.nl> Acked-by: Matthew Dharm <mdharm-usb@one-eyed-alien.net> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| * [SCSI] libsas: abstract STP task status into a functionJames Bottomley2008-01-25
| | | | | | | | | | | | | | | | | | Break out the frame processor for STP tasks from aic94xx so they can be shared by other SAS HBA's Original patch from Jeff Garzik <jeff@garzik.org> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| * [SCSI] ultrastor: clean up inline asm warningsFrederik Deweerdt2008-01-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | To: linux-kernel@vger.kernel.org Cc: bunk@kernel.org Subject: [trivial patch] scsi/ultrastor: clean up inline asm warnings Hi, Compiling latest mainline with gcc 4.2.1 spews the following warnings: drivers/scsi/ultrastor.c: In function 'find_and_clear_bit_16': drivers/scsi/ultrastor.c:303: warning: matching constraint does not allow a register drivers/scsi/ultrastor.c:302: warning: matching constraint does not allow a register drivers/scsi/ultrastor.c: At top level: drivers/scsi/ultrastor.c:1202: warning: matching constraint does not allow a register drivers/scsi/ultrastor.c:1202: warning: matching constraint does not allow a register drivers/scsi/ultrastor.c: In function 'ultrastor_queuecommand': drivers/scsi/ultrastor.c:698: warning: matching constraint does not allow a register drivers/scsi/ultrastor.c:698: warning: matching constraint does not allow a register drivers/scsi/ultrastor.c:698: warning: matching constraint does not allow a register drivers/scsi/ultrastor.c:698: warning: matching constraint does not allow a register drivers/scsi/ultrastor.c:698: warning: matching constraint does not allow a register drivers/scsi/ultrastor.c:698: warning: matching constraint does not allow a register drivers/scsi/ultrastor.c:698: warning: matching constraint does not allow a register drivers/scsi/ultrastor.c:302: warning: matching constraint does not allow a register drivers/scsi/ultrastor.c:302: warning: matching constraint does not allow a register The following patch fixes it by using the '+' operator on the (*field) operand, marking it as read-write to gcc. I diffed the two resulting .s, and gcc produced the same code. This was tested with gcc 4.2.1 and gcc 3.4.3 Signed-off-by: Frederik Deweerdt <frederik.deweerdt@gmail.com> Cc: Adrian Bunk <trivial@kernel.org> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| * [SCSI] aic7xxx: fix firmware buildVegard Nossum2008-01-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds the proper $(obj) and $(src) prefixes to dependency rules in aic7xxx makefile. Without this patch, there is a remote possibility that parallel make with a different output directory can fail. Also changed the deprecated EXTRA_CFLAGS construct to ccflags-y syntax. Fixed up patch to survive "make drivers/scsi/ -j" with BUILD_FIRMWARE enable. /Sam Signed-off-by: Vegard Nossum <vegard.nossum@gmail.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Acked-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| * [SCSI] aacraid: fib context lock for management ioctlsSalyzyn, Mark2008-01-25
| | | | | | | | | | | | | | | | | | | | | | | | | | Alan noticed the lack of locking surrounding the driver's dealings with the fib context managed by the trio of ioctls that are used by the RAID management applications to retrieve Adapter Initiated FIBs. I merely expanded the fib lock to include the fib context. There have been no field reports of any issues generally because the applications are relatively static and do not come and go often enough to stress this area. I bloated this patch a little with some space junk. Signed-off-by: Mark Salyzyn <aacraid@adaptec.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| * [SCSI] ch: remove forward declarationsFUJITA Tomonori2008-01-25
| | | | | | | | | | | | | | | | | | | | This moves ch_template and changer_fops structs to the end of file and removes forward declarations. This also removes some trailing whitespace. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| * [SCSI] ch: fix device minor number management bugFUJITA Tomonori2008-01-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ch_probe uses the total number of ch devices as minor. ch_probe: ch->minor = ch_devcount; ... ch_devcount++; Then ch_remove decreases ch_devcount: ch_remove: ch_devcount--; If you have two ch devices, sch0 and sch1, and remove sch0, ch_devcount is 1. Then if you add another ch device, ch_probe tries to create sch1. So you get a warning and fail to create sch1: Jan 24 16:01:05 nice kernel: sysfs: duplicate filename 'sch1' can not be created Jan 24 16:01:05 nice kernel: WARNING: at fs/sysfs/dir.c:424 sysfs_add_one() Jan 24 16:01:05 nice kernel: Pid: 2571, comm: iscsid Not tainted 2.6.24-rc7-ga3d2c2e8-dirty #1 Jan 24 16:01:05 nice kernel: Jan 24 16:01:05 nice kernel: Call Trace: Jan 24 16:01:05 nice kernel: [<ffffffff802a22b8>] sysfs_add_one+0x54/0xbd Jan 24 16:01:05 nice kernel: [<ffffffff802a283c>] create_dir+0x4f/0x87 Jan 24 16:01:05 nice kernel: [<ffffffff802a28a9>] sysfs_create_dir+0x35/0x4a Jan 24 16:01:05 nice kernel: [<ffffffff803069a1>] kobject_get+0x12/0x17 Jan 24 16:01:05 nice kernel: [<ffffffff80306ece>] kobject_add+0xf3/0x1a6 Jan 24 16:01:05 nice kernel: [<ffffffff8034252b>] class_device_add+0xaa/0x39d Jan 24 16:01:05 nice kernel: [<ffffffff803428fb>] class_device_create+0xcb/0xfa Jan 24 16:01:05 nice kernel: [<ffffffff80229e09>] printk+0x4e/0x56 Jan 24 16:01:05 nice kernel: [<ffffffff802a2054>] sysfs_ilookup_test+0x0/0xf Jan 24 16:01:05 nice kernel: [<ffffffff88022580>] :ch:ch_probe+0xbe/0x61a (snip) This patch converts ch to use a standard minor number management way, idr like sg and bsg. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| * [SCSI] ch: handle class_device_create failure properlyFUJITA Tomonori2008-01-23
| | | | | | | | | | | | | | When class_device_create fails, ch_probe needs to fail too. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| * [SCSI] NCR5380: fix section mismatchRandy Dunlap2008-01-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Many release() methods that are not __exit or __devexit call this __devexit function, so remove its "__devexit" attribute. scsi/g_NCR5380.c: WARNING: vmlinux.o(.text+0xadaf8c): Section mismatch: reference to .exit.text:NCR5380_exit (between 'generic_NCR5380_release_resources' and 'generic_NCR5380_biosparam') WARNING: vmlinux.o(.text+0xadd18c): Section mismatch: reference to .exit.text:NCR5380_exit (between 'generic_NCR5380_release_resources' and 'generic_NCR5380_biosparam') scsi/pas16.c, seagate.c: WARNING: vmlinux.o(.text+0xb29e91): Section mismatch: reference to .exit.text:NCR5380_exit (between 'pas16_release' and 'seagate_st0x_info') t128.c: WARNING: vmlinux.o(.text+0xb2a774): Section mismatch: reference to .exit.text:NCR5380_exit (between 't128_release' and 't128_biosparam') dtc.c, sym2/sym_fw.c: WARNING: vmlinux.o(.text+0xb2f215): Section mismatch: reference to .exit.text:NCR5380_exit (between 'dtc_release' and 'sym_fw1_patch') Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| * [SCSI] sg: fix /proc/scsi/sg/devices when no SCSI devicesTony Battersby2008-01-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The patch "[SCSI] sg: use idr to replace static arrays" in 2.6.24-rc1 causes a bogus line to appear in /proc/scsi/sg/devices containing "-1 -1 -1 -1 -1 -1 -1 -1 -1" when there are no SCSI devices in the system. In 2.6.23, /proc/scsi/sg/devices is empty when there are no SCSI devices in the system. A similar problem exists with /proc/scsi/sg/device_strs. The following patch restores the behavior of 2.6.23. Signed-off-by: Tony Battersby <tonyb@cybernetics.com> Acked-by: Douglas Gilbert <dougg@torque.net> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| * [SCSI] IB/iSER: add logical unit reset supportErez Zilber2008-01-23
| | | | | | | | | | | | | | | | | | eh_device_reset_handler was already added to scsi_host_template in iscsi_tcp, and is now added also for iscsi_iser. Signed-off-by: Erez Zilber <erezz@voltaire.com> Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| * [SCSI] don't use __GFP_DMA for sense buffers if not requiredJames Bottomley2008-01-23
| | | | | | | | | | | | | | | | | | | | Only hosts which actually have ISA DMA requirements need sense buffers coming out of ZONE_DMA, so only use the __GFP_DMA flag for that case to avoid allocating this scarce resource if it's not necessary. [tomo: fixed slab leak in failure case] Acked-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| * [SCSI] use dynamically allocated sense bufferFUJITA Tomonori2008-01-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This removes static array sense_buffer in scsi_cmnd and uses dynamically allocated sense_buffer (with GFP_DMA). The reason for doing this is that some architectures need cacheline aligned buffer for DMA: http://lkml.org/lkml/2007/11/19/2 The problems are that scsi_eh_prep_cmnd puts scsi_cmnd::sense_buffer to sglist and some LLDs directly DMA to scsi_cmnd::sense_buffer. It's necessary to DMA to scsi_cmnd::sense_buffer safely. This patch solves these issues. __scsi_get_command allocates sense_buffer via kmem_cache_alloc and attaches it to a scsi_cmnd so everything just work as before. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| * [SCSI] scsi.h: add macro for enclosure bit of inquiry dataJames Bottomley2008-01-23
| | | | | | | | | | | | The macro tells us whether the device is (or contains) an enclosure device. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| * [SCSI] sd: add fix for devices with last sector access problemsHans de Goede2008-01-23
| | | | | | | | | | | | | | | | | | | | | | | | This patch adds a new scsi_device flag (last_sector_bug) for devices which contain a bug where the device crashes when the last sector is read in a larger then 1 sector read. This is for example the case with sdcards in the HP PSC1350 printer cardreader and in the HP PSC1610 printer cardreader. Signed-off-by: Hans de Goede <j.w.r.degoede@hhs.nl> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| * [SCSI] fix pcmcia compile problemJames Bottomley2008-01-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch commit 8ae732a91df051aba6820068a47b631a06599d84 Author: Tejun Heo <htejun@gmail.com> Date: Fri Dec 7 22:36:23 2007 +0900 [SCSI] make pcmcia directory use obj-y|m instead of subdir-y|m Moved the scsi Makefile into conformance, but also caused the pcmcia subdirectory to get built in for the first time, leading to duplicate symbols in an allyesconfig build. Since evidently no-one relies on these being built in, fix this by ensuring they can only be built as modules. Acked-by: Tejun Heo <htejun@gmail.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| * [SCSI] aacraid: add Voodoo Lite class of cards.Salyzyn, Mark2008-01-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The cards being added are supported in a limited sense already through family matching, but we needed to add some functionality to the driver to expose selectively the physical drives. These Physical drives are specifically marked to not be part of any array and thus are declared JBODs (Just a Bunch Of Drives) for generic SCSI access. We report that this is the second patch in a set of two, but merely depends on the stand-alone functionality of the first patch which adds in that case the ability to report a driver feature flag via sysfs. We leverage that functionality by reporting that this driver now supports this new JBOD feature for the controller so that the array management applications may react accordingly and guide the user as they manage the controller. Signed-off-by: Mark Salyzyn <aacraid@adaptec.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| * [SCSI] aacraid: add new driver features flagsSalyzyn, Mark2008-01-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Feature enhancement, adding a 'flags' entry that will reside in the host controller's tree, with a newline separated list of arbitrary ascii named features that indicate whether the combination of driver and controller has support for said feature. Breaking from the one-line output typical of sysfs entries, newline was added to tailor for grep, or simple gets line by line string match within an application. I added one for a compiler time check for existence of debug print output, one for an optional manifest defined enhanced status reporting in the logs, and one for runtime reporting whether the controller and driver supports arrays larger than 2TB. Adaptec's storage management software uses the last flag to determine whether to make available the creation of arrays larger than 2TB, otherwise a warning is posted. Signed-off-by: Mark Salyzyn <aacraid@adaptec.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| * [SCSI] qla2xxx: Update version number to 8.02.00-k7.Andrew Vasquez2008-01-23
| | | | | | | | | | Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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