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* scsi: docs: convert dpti.txt to ReSTMauro Carvalho Chehab2020-03-111-1/+1
| | | | | | Link: https://lore.kernel.org/r/212fd7961c134c5bd73d87cd818bcddc30270804.1583136624.git.mchehab+huawei@kernel.org Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* scsi: dpt_i2o: use scsi_host_complete_all_commands() to abort outstanding ↵Hannes Reinecke2020-02-281-1/+0
| | | | | | | | | | | | | | commands Rather than traversing all outstanding commands manually, use the scsi_host_complete_all_commands() helper to terminate all commands during reset. With that we can drop the cmd_list usage from the midlayer. Link: https://lore.kernel.org/r/20200228075318.91255-4-hare@suse.de Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* scsi: dpt_i2o: rename adpt_i2o_to_scsi() to adpt_i2o_scsi_complete()Hannes Reinecke2020-02-281-1/+1
| | | | | | | | | | | | | Rename the badly named function into adpt_i2o_scsi_complete(), and make it a void function as the return value is never used. This also fixes a potential use-after-free as the return value might be evaluated from the command result after the command has been freed. Link: https://lore.kernel.org/r/20200228075318.91255-2-hare@suse.de Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152Thomas Gleixner2019-05-301-4/+1
| | | | | | | | | | | | | | | | | | | | | Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* scsi: dpt_i2o: stop using scsi_unregisterChristoph Hellwig2018-03-151-1/+0
| | | | | | | | dpt_i2o doesn't use scsi_register, so it should not use scsi_unregister either. Also refactor the module exit path to make a little more sense. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* scsi: use 64-bit LUNsHannes Reinecke2014-07-171-3/+3
| | | | | | | | | | | | | The SCSI standard defines 64-bit values for LUNs, and large arrays employing large or hierarchical LUN numbers become more and more common. So update the linux SCSI stack to use 64-bit LUN numbers. Signed-off-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Christoph Hellwig <hch@infradead.org> Reviewed-by: Ewan Milne <emilne@redhat.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
* [SCSI] dpt_i2o: Remove DPTI_STATE_IOCTLHannes Reinecke2013-10-251-1/+0
| | | | | | | | | scsi_block_host/scsi_unlock_host provides the required functionality. [jejb: checkpatch fixes] Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
* SCSI host lock push-downJeff Garzik2010-11-161-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | Move the mid-layer's ->queuecommand() invocation from being locked with the host lock to being unlocked to facilitate speeding up the critical path for drivers who don't need this lock taken anyway. The patch below presents a simple SCSI host lock push-down as an equivalent transformation. No locking or other behavior should change with this patch. All existing bugs and locking orders are preserved. Additionally, add one parameter to queuecommand, struct Scsi_Host * and remove one parameter from queuecommand, void (*done)(struct scsi_cmnd *) Scsi_Host* is a convenient pointer that most host drivers need anyway, and 'done' is redundant to struct scsi_cmnd->scsi_done. Minimal code disturbance was attempted with this change. Most drivers needed only two one-line modifications for their host lock push-down. Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Acked-by: James Bottomley <James.Bottomley@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* drivers/scsi/dpt_i2o.c: fix build on alphaAndrew Morton2008-05-081-13/+0
| | | | | | | | | | | | | | | | | | | | alpha: drivers/scsi/dpt_i2o.c:1997: error: implicit declaration of function 'adpt_alpha_info' drivers/scsi/dpt_i2o.c: At top level: drivers/scsi/dpt_i2o.c:2032: warning: conflicting types for 'adpt_alpha_info' drivers/scsi/dpt_i2o.c:2032: error: static declaration of 'adpt_alpha_info' follows non-static declaration drivers/scsi/dpt_i2o.c:1997: error: previous implicit declaration of 'adpt_alpha_info' was here Due to a copy-n-paste error in drivers/scsi/dpti.h. Fix that up and remove some of the many daft static-declarations-in-a-header which this driver enjoys. Cc: Miquel van Smoorenburg <miquels@cistron.nl> Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [SCSI] dpt_i2o: 64 bit supportMiquel van Smoorenburg2008-05-021-0/+2
| | | | | | | | | | | | This is the code to actually support 64 bit platforms. 64 bit DMA is enabled on both x86_32 PAE and 64 bit platforms. This code is based in part on the unofficial adaptec 64-bit dpt_i2o driver update that I got from Mark Salyzyn at Adaptec. Signed-off-by: Miquel van Smoorenburg <miquels@cistron.nl> Acked-by: Mark Salyzyn <Mark_Salyzyn@adaptec.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] dpt_i2o: move from virt_to_bus/bus_to_virt to dma_alloc_coherentMiquel van Smoorenburg2008-05-021-1/+6
| | | | | | | | | | | | | | | | Remove virt_to_bus/bus_to_virt code from dpt_i2o, and use dma_alloc_coherent() / dma_free_coherent(). This is in preparation of 64-bit support, dma_alloc_coherent() can allocate memory in the lower 32 bits of physical memory which is needed because the HBA only supports message blocks under 4GB This code is based in part on the unofficial adaptec 64-bit dpt_i2o driver update that I got from Mark Salyzyn at Adaptec. Signed-off-by: Miquel van Smoorenburg <miquels@cistron.nl> Acked-by: Mark Salyzyn <Mark_Salyzyn@adaptec.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] dpt_i2o: use standard __init / __exit codeMiquel van Smoorenburg2008-05-021-5/+1
| | | | | | | | | | | | | | | | | Update dpt_i2o.c to use the standard __init / __exit code instead of the legacy '#include "scsi_module.c"' code. This is needed in preparation of 64-bit support. scsi_module.c calls scsi_add_host() with the device pointer set to NULL, and that crashes code like arch/x64/kernel/pci-gart_64.c::need_iommu(). The reboot_notifier code is deleted because it wasn't compiled in ever anyway, and it would be useless to duplicate it in the new code. Signed-off-by: Miquel van Smoorenburg <miquels@cistron.nl> Acked-by: Mark Salyzyn <Mark_Salyzyn@adaptec.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* revert "dpt_i2o: convert to SCSI hotplug model"Andrew Morton2007-12-101-2/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | revert commit 55d9fcf57ba5ec427544fca7abc335cf3da78160 Author: Matthew Wilcox <matthew@wil.cx> Date: Mon Jul 30 15:19:18 2007 -0600 [SCSI] dpt_i2o: convert to SCSI hotplug model - Delete refereces to HOSTS_C - Switch to module_init/module_exit instead of detect/release - Don't pass around the host template and rename it to adpt_template - Switch from scsi_register/scsi_unregister to scsi_host_alloc, scsi_add_host, scsi_scan_host and scsi_host_put. Because it caused (for unknown reasons) Andres' all-data-reads-as-zeroes problem, reported at http://groups.google.com/group/fa.linux.kernel/msg/083a9acff0330234 Cc: Matthew Wilcox <matthew@wil.cx> Cc: "Salyzyn, Mark" <mark_salyzyn@adaptec.com> Cc: James Bottomley <James.Bottomley@SteelEye.com> Acked-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: Anders Henke <anders.henke@1und1.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [SCSI] dpt_i2o: convert to SCSI hotplug modelMatthew Wilcox2007-07-311-7/+2
| | | | | | | | | | | | - Delete refereces to HOSTS_C - Switch to module_init/module_exit instead of detect/release - Don't pass around the host template and rename it to adpt_template - Switch from scsi_register/scsi_unregister to scsi_host_alloc, scsi_add_host, scsi_scan_host and scsi_host_put. Signed-off-by: Matthew Wilcox <matthew@wil.cx> Acked-by: "Salyzyn, Mark" <mark_salyzyn@adaptec.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* IRQ: Maintain regs pointer globally rather than passing to IRQ handlersDavid Howells2006-10-051-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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)
* [SCSI] scsi: remove hosts.hHenne2006-10-041-1/+1
| | | | | | | Remove the obsolete hosts.h file under drivers/scsi. Signed-off-by: Henrik Kretzschmar <henne@nachtwindheim.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] remove Scsi_Host_Template typedefChristoph Hellwig2005-11-091-1/+1
| | | | Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [PATCH] drivers/scsi/dpt*: remove version.h dependenciesAdrian Bunk2005-06-251-12/+0
| | | | | | | | This patch removes version.h dependencies. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [SCSI] drivers/scsi/dpt_i2o.c: fix compile warningsBenoit Boissinot2005-05-201-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes the following warnings: drivers/scsi/dpt_i2o.c: In function ‘adpt_isr’: drivers/scsi/dpt_i2o.c:2030: warning: passing argument 1 of ‘readl’ makes pointer from integer without a cast drivers/scsi/dpt_i2o.c:2031: warning: passing argument 1 of ‘readl’ makes pointer from integer without a cast drivers/scsi/dpt_i2o.c:2042: warning: passing argument 1 of ‘readl’ makes pointer from integer without a cast drivers/scsi/dpt_i2o.c:2043: warning: passing argument 2 of ‘writel’ makes pointer from integer without a cast drivers/scsi/dpt_i2o.c:2046: warning: passing argument 1 of ‘readl’ makes pointer from integer without a cast drivers/scsi/dpt_i2o.c:2048: warning: passing argument 1 of ‘readl’ makes pointer from integer without a cast drivers/scsi/dpt_i2o.c:2055: warning: passing argument 1 of ‘readl’ makes pointer from integer without a cast drivers/scsi/dpt_i2o.c:2062: warning: passing argument 1 of ‘readl’ makes pointer from integer without a cast drivers/scsi/dpt_i2o.c:2069: warning: passing argument 1 of ‘readl’ makes pointer from integer without a cast drivers/scsi/dpt_i2o.c: In function ‘adpt_i2o_to_scsi’: drivers/scsi/dpt_i2o.c:2239: warning: passing argument 1 of ‘readl’ makes pointer from integer without a cast drivers/scsi/dpt_i2o.c:2243: warning: passing argument 1 of ‘readl’ makes pointer from integer without a cast drivers/scsi/dpt_i2o.c:2248: warning: passing argument 1 of ‘readl’ makes pointer from integer without a cast drivers/scsi/dpt_i2o.c:2259: warning: passing argument 1 of ‘readl’ makes pointer from integer without a cast It define variables which are only used with a type of 'void __iomem *' with this type instead of the incorrect 'unsigned long' type. It also remove pointless casts. Signed-off-by: Benoit Boissinot <benoit.boissinot@ens-lyon.org> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* Linux-2.6.12-rc2v2.6.12-rc2Linus Torvalds2005-04-161-0/+359
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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