summaryrefslogtreecommitdiff
path: root/Documentation/scsi
AgeCommit message (Collapse)Author
2018-05-29block: remove BLK_EH_HANDLEDChristoph Hellwig
Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Hannes Reinecke <hare@suse.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-05-29block: rename BLK_EH_NOT_HANDLED to BLK_EH_DONEChristoph Hellwig
The BLK_EH_NOT_HANDLED implies nothing happen, but very often that is not what is happening - instead the driver already completed the command. Fix the symbolic name to reflect that a little better. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Hannes Reinecke <hare@suse.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-03-21scsi: documentation: Obsolete documentation referencesMartin K. Petersen
Remove references to fdomain, ncr53c400a, tmscsim, and DAC960 from Documentation/scsi. Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-03-19scsi: remove the old scsi_module.c initialization modelChristoph Hellwig
After more than 15 years all users of this legacy interface are finally gone. Rest in peace! Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-03-19scsi: remove the sym53c416 driverChristoph Hellwig
This driver hasn't seen any recent bug fixing and is one of the last drivers using the scsi_module.c infrastruture that has been deprecated 15 years ago. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-03-15scsi: documentation: remove ChangeLog.1992-1997Christoph Hellwig
This 20+ year old changelog has no useful information for kernel development or users, so remove it. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-03-14scsi: eata: eata-pio: Deprecate legacy EATA driversMartin K. Petersen
These two drivers do not appear to be in active use. Deprecate them. Suggested-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-03-01scsi: sd: Documentation: add sd-parameters.txtWeiping Zhang
Add a file for documenting SCSI sd module parameters and describe the cache_type setting. [mkp: tweaked text a bit] Signed-off-by: Weiping Zhang <zhangweiping@didichuxing.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-12-02scsi: documentation: Fix case of 'scsi_device' struct mention(s)John Pittman
In scsi_mid_low_api.txt a the scsi_device structure is mentioned several times, but the leading 's' is uppercase (Scsi_device) and should be lowercase (scsi_device). Fixed by this commit. Signed-off-by: John Pittman <jpittman@redhat.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-10-23scsi: smartpqi: correct spelling error in documentationDon Brace
Correct spelling error. Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com> Signed-off-by: Don Brace <don.brace@microsemi.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-10-23scsi: Clarify SCSI core module parameter documentationMartin K. Petersen
Ever since it became possible to compile the SCSI core code as a module, the documentation describing the module parameters has been incorrect. Update the documentation to add a "scsi_mod." prefix to the relevant options. Reported-by: Laurence Oberman <loberman@redhat.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-04-06scsi: make asynchronous aborts mandatoryHannes Reinecke
There hasn't been any reports for HBAs where asynchronous abort would not work, so we should make it mandatory and remove the fallback. Signed-off-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-04-06scsi: make eh_eflags persistentHannes Reinecke
If a failed command is retried and fails again we need to enter SCSI EH, otherwise we will never be able to recover the command. To detect this situation we must not clear scmd->eh_eflags when EH finishes but rather make it persistent throughout the lifetime of the command. Signed-off-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Benjamin Block <bblock@linux.vnet.ibm.com> Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-02-27scripts/spelling.txt: add "varible" pattern and fix typo instancesMasahiro Yamada
Fix typos and add the following to the scripts/spelling.txt: varible||variable While we are here, tidy up the comment blocks that fit in a single line for drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c and net/sctp/transport.c. Link: http://lkml.kernel.org/r/1481573103-11329-11-git-send-email-yamada.masahiro@socionext.com Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-12-22Merge branch 'misc' into for-linusJames Bottomley
2016-12-08scsi: g_NCR5380: Autoprobe board IRQ by defaultFinn Thain
Automatically probe the board irq when no irq parameter is provided, to simulate PnP. The old default behaviour was to disable the irq. Update driver documentation accordingly and add some printk messages to make this behaviour visible. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Tested-by: Ondrej Zary <linux@rainbow-software.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-10-24docs: fix locations of several documents that got movedMauro Carvalho Chehab
The previous patch renamed several files that are cross-referenced along the Kernel documentation. Adjust the links to point to the right places. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-09-29scsi: g_NCR5380: Stop using scsi_module.cOndrej Zary
Convert g_NCR5380 to use scsi_add_host instead of scsi_module.c Use pnp_driver and isa_driver to manage cards. In order to support multiple cards, new module parameter format is introduced. The old parameters are kept for compatibility. Signed-off-by: Ondrej Zary <linux@rainbow-software.org> Acked-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-09-29scsi: g_NCR5380: Remove deprecated __setupOndrej Zary
Remove deprecated __setup for parsing command line parameters. g_NCR5380.* parameters could be used instead. This might break existing setups with g_NCR5380 built-in (if there are any). But it has to go in order to remove the overrides[] array. Signed-off-by: Ondrej Zary <linux@rainbow-software.org> Acked-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-09-26scsi: dtc: remove from treeChristoph Hellwig
The driver has not seen any maintainer activity or other work that wasn't tree wide conversion or clenaups in the entire history of the git tree. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Hannes Reinicke <hare@suse.de> Acked-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-09-26scsi: t128: remove from treeChristoph Hellwig
The driver has not seen any maintainer activity or other work that wasn't tree wide conversion or clenaups in the entire history of the git tree. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Hannes Reinicke <hare@suse.de> Acked-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-09-26scsi: pas16: remove from treeChristoph Hellwig
The driver has not seen any maintainer activity or other work that wasn't tree wide conversion or clenaups in the entire history of the git tree. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Hannes Reinicke <hare@suse.de> Acked-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-09-26scsi: u14-34f: remove from treeChristoph Hellwig
The driver has not seen any maintainer activity or other work that wasn't tree wide conversion or clenaups in the entire history of the git tree. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Hannes Reinicke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-09-26scsi: in2000: remove from treeChristoph Hellwig
The driver has not seen any maintainer activity or other work that wasn't tree wide conversion or clenaups in the entire history of the git tree. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Hannes Reinicke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-09-26scsi: wd7000: remove from treeChristoph Hellwig
The driver has not seen any maintainer activity or other work that wasn't tree wide conversion or clenaups in the entire history of the git tree. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Hannes Reinicke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-09-02scsi: smartpqi: add smartpqi.txtDon Brace
added Documentation/scsi/smartpqi.txt [mkp: applied by hand] Reviewed-by: Kevin Barnett <kevin.barnett@microsemi.com> Reviewed-by: Scott Benesh <scott.benesh@microsemi.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Don Brace <don.brace@microsemi.com> Reviewed-by: Tomas Henzl <thenzl@redhat.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-08-31scsi: Documentation/scsi: Remove nodisconnect parameterFinn Thain
The driver that used the 'nodisconnect' parameter was removed in commit 565bae6a4a8f ("[SCSI] 53c7xx: kill driver"). Related documentation was cleaned up in commit f37a7238d379 ("[SCSI] 53c7xx: fix removal fallout"), except for the remaining two mentions that are removed here. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-06-18Merge remote-tracking branch 'mkp-scsi/4.7/scsi-fixes' into fixesJames Bottomley
2016-06-08scsi: fix race between simultaneous decrements of ->host_failedWei Fang
sas_ata_strategy_handler() adds the works of the ata error handler to system_unbound_wq. This workqueue asynchronously runs work items, so the ata error handler will be performed concurrently on different CPUs. In this case, ->host_failed will be decreased simultaneously in scsi_eh_finish_cmd() on different CPUs, and become abnormal. It will lead to permanently inequality between ->host_failed and ->host_busy, and scsi error handler thread won't start running. IO errors after that won't be handled. Since all scmds must have been handled in the strategy handler, just remove the decrement in scsi_eh_finish_cmd() and zero ->host_busy after the strategy handler to fix this race. Fixes: 50824d6c5657 ("[SCSI] libsas: async ata-eh") Cc: stable@vger.kernel.org Signed-off-by: Wei Fang <fangwei1@huawei.com> Reviewed-by: James Bottomley <jejb@linux.vnet.ibm.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-05-28Merge branch 'for-next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending Pull SCSI target updates from Nicholas Bellinger: "Here are the outstanding target pending updates for v4.7-rc1. The highlights this round include: - Allow external PR/ALUA metadata path be defined at runtime via top level configfs attribute (Lee) - Fix target session shutdown bug for ib_srpt multi-channel (hch) - Make TFO close_session() and shutdown_session() optional (hch) - Drop se_sess->sess_kref + convert tcm_qla2xxx to internal kref (hch) - Add tcm_qla2xxx endpoint attribute for basic FC jammer (Laurence) - Refactor iscsi-target RX/TX PDU encode/decode into common code (Varun) - Extend iscsit_transport with xmit_pdu, release_cmd, get_rx_pdu, validate_parameters, and get_r2t_ttt for generic ISO offload (Varun) - Initial merge of cxgb iscsi-segment offload target driver (Varun) The bulk of the changes are Chelsio's new driver, along with a number of iscsi-target common code improvements made by Varun + Co along the way" * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (29 commits) iscsi-target: Fix early sk_data_ready LOGIN_FLAGS_READY race cxgbit: Use type ISCSI_CXGBIT + cxgbit tpg_np attribute iscsi-target: Convert transport drivers to signal rdma_shutdown iscsi-target: Make iscsi_tpg_np driver show/store use generic code tcm_qla2xxx Add SCSI command jammer/discard capability iscsi-target: graceful disconnect on invalid mapping to iovec target: need_to_release is always false, remove redundant check and kfree target: remove sess_kref and ->shutdown_session iscsi-target: remove usage of ->shutdown_session tcm_qla2xxx: introduce a private sess_kref target: make close_session optional target: make ->shutdown_session optional target: remove acl_stop target: consolidate and fix session shutdown cxgbit: add files for cxgbit.ko iscsi-target: export symbols iscsi-target: call complete on conn_logout_comp iscsi-target: clear tx_thread_active iscsi-target: add new offload transport type iscsi-target: use conn_transport->transport_type in text rsp ...
2016-05-19Merge tag 'docs-for-linus' of git://git.lwn.net/linuxLinus Torvalds
Pull Documentation updates from Jon Corbet: "A bit busier this time around. The most interesting thing (IMO) this time around is some beginning infrastructural work to allow documents to be written using restructured text. Maybe someday, in a galaxy far far away, we'll be able to eliminate the DocBook dependency and have a much better integrated set of kernel docs. Someday. Beyond that, there's a new document on security hardening from Kees, the movement of some sample code over to samples/, a number of improvements to the serial docs from Geert, and the usual collection of corrections, typo fixes, etc" * tag 'docs-for-linus' of git://git.lwn.net/linux: (55 commits) doc: self-protection: provide initial details serial: doc: Use port->state instead of info serial: doc: Always refer to tty_port->mutex Documentation: vm: Spelling s/paltform/platform/g Documentation/memcg: update kmem limit doc as codes behavior docproc: print a comment about autogeneration for rst output docproc: add support for reStructuredText format via --rst option docproc: abstract terminating lines at first space docproc: abstract docproc directive detection docproc: reduce unnecessary indentation docproc: add variables for subcommand and filename kernel-doc: use rst C domain directives and references for types kernel-doc: produce RestructuredText output kernel-doc: rewrite usage description, remove duplicated comments Doc: correct the location of sysrq.c Documentation: fix common spelling mistakes samples: v4l: from Documentation to samples directory samples: connector: from Documentation to samples directory Documentation: xillybus: fix spelling mistake Documentation: x86: fix spelling mistakes ...
2016-05-10tcm_qla2xxx Add SCSI command jammer/discard capabilityLaurence Oberman
This patch introduces support for TCM_QLA2XXX_DEBUG and associated tcm_qla2xxx_tpg->tpg_attrib.jam_host checking used to test dropped packets to FC host environments. Tested by: Laurence Oberman <loberman@redhat.com> Signed-off-by: Laurence Oberman <loberman@redhat.com> Acked-by: Himanshu Madhani <himanshu.madhani@qlogic.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-04-28Documentation: fix common spelling mistakesKees Cook
This fixes several spelling mistakes in the Documentation/ tree, which are caught by checkpatch.pl's spell checking. Signed-off-by: Kees Cook <keescook@chromium.org> Reviewed-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2016-04-28Documentation: scsi: fix spelling mistakesEric Engestrom
Signed-off-by: Eric Engestrom <eric@engestrom.ch> [jc: fixed trailing whitespace errors] Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2016-04-11ncr5380: Update usage documentationFinn Thain
Update kernel parameter documentation for atari_scsi, mac_scsi and g_NCR5380 drivers. Remove duplication. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-02-23st: Fix MTMKPART to work with newer drivesKai Makisara
Change the MTMKPART operation of the MTIOCTOP ioctl so that it works also with current drives (LTO-5/6, etc.). Send a separate FORMAT MEDIUM command if the partition mode page indicates that this is required. Use LOAD to position the tape at the beginning of tape. The operation is extended so that if the argument is negative, its absolute value specifies the size of partition 0, which is the physically first partition of the tape. Signed-off-by: Kai Mäkisara <kai.makisara@kolumbus.fi> Tested-by: Shane M Seymour <shane.seymour@hpe.com> Tested-by: Laurence Oberman <loberman@redhat.com> Tested-by: Douglas Gilbert <dgilbert@interlog.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2015-11-09st: allow debug output to be enabled or disabled via sysfsSeymour, Shane M
Change st driver to allow enabling or disabling debug output via sysfs file /sys/bus/scsi/drivers/st/debug_flag. Previously the only way to enable debug output was: 1. loading the driver with the module parameter debug_flag=1 2. an ioctl call (this method was also the only way to dynamically disable debug output). To use the ioctl you need a second tape drive (if you are actively testing the first tape drive) since a second process cannot open the first tape drive if it is in use. The this change is only functional if the value of the macro DEBUG in st.c is a non-zero value (which it is by default). Signed-off-by: Shane Seymour <shane.seymour@hpe.com> Reviewed-by: Laurence Oberman <oberman.l@gmail.com> Acked-by: Kai Mäkisara <kai.makisara@kolumbus.fi> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-06-25Merge branch 'for-4.2/sg' of git://git.kernel.dk/linux-blockLinus Torvalds
Pull asm/scatterlist.h removal from Jens Axboe: "We don't have any specific arch scatterlist anymore, since parisc finally switched over. Kill the include" * 'for-4.2/sg' of git://git.kernel.dk/linux-block: remove scatterlist.h generation from arch Kbuild files remove <asm/scatterlist.h>
2015-06-02st: implement tape statisticsSeymour, Shane M
This patch implements tape statistics in the st module via sysfs. Current no statistics are available for tape I/O and there is no easy way to reuse the block layer statistics for tape as tape is a character device and does not have perform I/O in sector sized chunks (the size of the data written to tape can change). For tapes we also need extra stats related to things like tape movement (via other I/O). There have been multiple end users requesting statistics including AT&T (and some HP customers who have not given permission to be named). It is impossible for them to investigate any issues related to tape performance in a non-invasive way. [jejb: eliminate PRId64] Signed-off-by: Shane Seymour <shane.seymour@hp.com> Tested-by: Shane Seymour <shane.seymour@hp.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-03-05genirq: Remove the deprecated 'IRQF_DISABLED' request_irq() flag entirelyValentin Rothberg
The IRQF_DISABLED flag is a NOOP and has been scheduled for removal since Linux v2.6.36 by commit 6932bf37bed4 ("genirq: Remove IRQF_DISABLED from core code"). According to commit e58aa3d2d0cc ("genirq: Run irq handlers with interrupts disabled"), running IRQ handlers with interrupts enabled can cause stack overflows when the interrupt line of the issuing device is still active. This patch ends the grace period for IRQF_DISABLED (i.e., SA_INTERRUPT in older versions of Linux) and removes the definition and all remaining usages of this flag. There's still a few non-functional references left in the kernel source: - The bigger hunk in Documentation/scsi/ncr53c8xx.txt is removed entirely as IRQF_DISABLED is gone now; the usage in older kernel versions (including the old SA_INTERRUPT flag) should be discouraged. The trouble of using IRQF_SHARED is a general problem and not specific to any driver. - I left the reference in Documentation/PCI/MSI-HOWTO.txt untouched since it has already been removed in linux-next. - All remaining references are changelogs that I suggest to keep. Signed-off-by: Valentin Rothberg <valentinrothberg@gmail.com> Cc: Afzal Mohammed <afzal@ti.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Brian Norris <computersforpeace@gmail.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Dan Carpenter <dan.carpenter@oracle.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Ewan Milne <emilne@redhat.com> Cc: Eyal Perry <eyalpe@mellanox.com> Cc: Felipe Balbi <balbi@ti.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Hannes Reinecke <hare@suse.de> Cc: Hongliang Tao <taohl@lemote.com> Cc: Huacai Chen <chenhc@lemote.com> Cc: Jiri Kosina <jkosina@suse.cz> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Keerthy <j-keerthy@ti.com> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Nishanth Menon <nm@ti.com> Cc: Paul Bolle <pebolle@tiscali.nl> Cc: Peter Ujfalusi <peter.ujfalusi@ti.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Quentin Lambert <lambert.quentin@gmail.com> Cc: Rajendra Nayak <rnayak@ti.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Santosh Shilimkar <santosh.shilimkar@ti.com> Cc: Sricharan R <r.sricharan@ti.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tony Lindgren <tony@atomide.com> Cc: Zhou Wang <wangzhou1@hisilicon.com> Cc: iss_storagedev@hp.com Cc: linux-mips@linux-mips.org Cc: linux-mtd@lists.infradead.org Link: http://lkml.kernel.org/r/1425565425-12604-1-git-send-email-valentinrothberg@gmail.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2014-12-12Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial Pull trivial tree update from Jiri Kosina: "Usual stuff: documentation updates, printk() fixes, etc" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (24 commits) intel_ips: fix a type in error message cpufreq: cpufreq-dt: Move newline to end of error message ps3rom: fix error return code treewide: fix typo in printk and Kconfig ARM: dts: bcm63138: change "interupts" to "interrupts" Replace mentions of "list_struct" to "list_head" kernel: trace: fix printk message scsi: mpt2sas: fix ioctl in comment zbud, zswap: change module author email clocksource: Fix 'clcoksource' typo in comment arm: fix wording of "Crotex" in CONFIG_ARCH_EXYNOS3 help gpio: msm-v1: make boolean argument more obvious usb: Fix typo in usb-serial-simple.c PCI: Fix comment typo 'COMFIG_PM_OPS' powerpc: Fix comment typo 'CONIFG_8xx' powerpc: Fix comment typos 'CONFiG_ALTIVEC' clk: st: Spelling s/stucture/structure/ isci: Spelling s/stucture/structure/ usb: gadget: zero: Spelling s/infrastucture/infrastructure/ treewide: Fix company name in module descriptions ...
2014-11-27libsas: remove task_collector modeChristoph Hellwig
The task_collector mode (or "latency_injector", (C) Dan Willians) is an optional I/O path in libsas that queues up scsi commands instead of directly sending it to the hardware. It generall increases latencies to in the optiomal case slightly reduce mmio traffic to the hardware. Only the obsolete aic94xx driver and the mvsas driver allowed to use it without recompiling the kernel, and most drivers didn't support it at all. Remove the giant blob of code to allow better optimizations for scsi-mq in the future. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Hannes Reinecke <hare@suse.de> Acked-by: Dan Williams <dan.j.williams@intel.com>
2014-11-25wd719x: Add firmware documentationOndrej Zary
Add documentation and script to obtain required firmware. Signed-off-by: Ondrej Zary <linux@rainbow-software.org> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-11-24scsi: drop reason argument from ->change_queue_depthChristoph Hellwig
Drop the now unused reason argument from the ->change_queue_depth method. Also add a return value to scsi_adjust_queue_depth, and rename it to scsi_change_queue_depth now that it can be used as the default ->change_queue_depth implementation. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Reviewed-by: Hannes Reinecke <hare@suse.de>
2014-11-20Merge Linus' tree to be be to apply submitted patches to newer code thanJiri Kosina
current trivial.git base
2014-11-12scsi: don't set tagging state from scsi_adjust_queue_depthChristoph Hellwig
Remove the tagged argument from scsi_adjust_queue_depth, and just let it handle the queue depth. For most drivers those two are fairly separate, given that most modern drivers don't care about the SCSI "tagged" status of a command at all, and many old drivers allow queuing of multiple untagged commands in the driver. Instead we start out with the ->simple_tags flag set before calling ->slave_configure, which is how all drivers actually looking at ->simple_tags except for one worke anyway. The one other case looks broken, but I've kept the behavior as-is for now. Except for that we only change ->simple_tags from the ->change_queue_type, and when rejecting a tag message in a single driver, so keeping this churn out of scsi_adjust_queue_depth is a clear win. Now that the usage of scsi_adjust_queue_depth is more obvious we can also remove all the trivial instances in ->slave_alloc or ->slave_configure that just set it to the cmd_per_lun default. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
2014-11-12scsi: always assign block layer tags if enabledChristoph Hellwig
Allow a driver to ask for block layer tags by setting .use_blk_tags in the host template, in which case it will always see a valid value in request->tag, similar to the behavior when using blk-mq. This means even SCSI "untagged" commands will now have a tag, which is especially useful when using a host-wide tag map. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Reviewed-by: Hannes Reinecke <hare@suse.de>
2014-11-12st: add a debug_flag module parameter requestLaurence Oberman
This patch adds a debug_flag parameter that can be set on module load, and allows the DEBUG facility without a module recompile. Note that now DEBUG 1 is the default with this patch. Usage: modprobe st debug_flag=1 Signed-off-by: Laurence Oberman <loberman@redhat.com> Acked-by: Kai M??kisara <kai.makisara@kolumbus.fi> Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-10-29scsi: Fix "choir" and "beeing" malapropsFinn Thain
Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2014-10-21Merge branch 'for-linus' of git://git.open-osd.org/linux-open-osdLinus Torvalds
Pull email address change from Boaz Harrosh. * 'for-linus' of git://git.open-osd.org/linux-open-osd: Boaz Harrosh - fix email in Documentation Boaz Harrosh - Fix broken email address MAINTAINERS: Change Boaz Harrosh's email