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* [PATCH] Revert ABI-breaking change in /procMatthew Wilcox2006-09-24
| | | | | | | | | | | | Some user tools parse /proc/scsi/scsi, so we can't yet change the names. Change the existing ones back to their old names, and add an admonition to not make the same mistake that I did. Andrew Morton reports that this was breaking YDL 4.1 userspace. Signed-off-by: Matthew Wilcox <matthew@wil.cx> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [SCSI] fix compile error on module_refcountDaniel Walker2006-09-12
| | | | | | | | | | | | | LD .tmp_vmlinux1 drivers/built-in.o(.text+0x8e1f9): In function `scsi_device_put': drivers/scsi/scsi.c:887: undefined reference to `module_refcount' make: *** [.tmp_vmlinux1] Error 1 There are only two users of module_refcount() outside of kernel/module.c and the other one uses ifdef's similar to this. Signed-Off-By: Daniel Walker <dwalker@mvista.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] fix up non-modular SCSIJames Bottomley2006-09-07
| | | | | | | | The recent change to the way scsi_device_get()/put() work broke the non modular build (we do a module_refcount on a NULL). Fix this by checking for non-null before checking module_refcount(). Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] SCSI and FC Transport: add netlink support for posting of transport ↵James Smart2006-09-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | events This patch formally adds support for the posting of FC events via netlink. It is a followup to the original RFC at: http://marc.theaimsgroup.com/?l=linux-scsi&m=114530667923464&w=2 and the initial posting at: http://marc.theaimsgroup.com/?l=linux-scsi&m=115507374832500&w=2 The patch has been updated to optimize the send path, per the discussions in the initial posting. Per discussions at the Storage Summit and at OLS, we are to use netlink for async events from transports. Also per discussions, to avoid a netlink protocol per transport, I've create a single NETLINK_SCSITRANSPORT protocol, which can then be used by all transports. This patch: - Creates new files scsi_netlink.c and scsi_netlink.h, which contains the single and shared definitions for the SCSI Transport. It is tied into the base SCSI subsystem intialization. Contains a single interface routine, scsi_send_transport_event(), for a transport to send an event (via multicast to a protocol specific group). - Creates a new scsi_netlink_fc.h file, which contains the FC netlink event messages - Adds 3 new routines to the fc transport: fc_get_event_number() - to get a FC event # fc_host_post_event() - to send a simple FC event (32 bits of data) fc_host_post_vendor_event() - to send a Vendor unique event, with arbitrary amounts of data. Note: the separation of event number allows for a LLD to send a standard event, followed by vendor-specific data for the event. Note: This patch assumes 2 prior fc transport patches have been installed: http://marc.theaimsgroup.com/?l=linux-scsi&m=115555807316329&w=2 http://marc.theaimsgroup.com/?l=linux-scsi&m=115581614930261&w=2 Sorry - next time I'll do something like making these individual patches of the same posting when I know they'll be posted closely together. Signed-off-by: James Smart <James.Smart@emulex.com> Tidy up configuration not to make SCSI always select NET Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] sd: fix cache flushing on module removal (and individual device removal)James Bottomley2006-09-01
| | | | | | | | | | The fix isn't actually in sd: it's in scsi_device_get(). I modified it to allow devices to be returned in SDEV_CANCEL, but not SDEV_DEL. This means that the device_remove_driver, which occurs in device_del() in scsi_remove_device() after the device has gone into SDEV_CANCEL is now effective at flushing the cache. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] Improve inquiry printingMatthew Wilcox2006-08-06
| | | | | | | | | | | | | | | | - Replace scsi_device_types array API with scsi_device_type function API. Gets rid of a lot of common code, as well as being easier to use. - Add the new device types in SPC4 r05a, and rename some of the older ones. - Reformat the printing of inquiry data; now fits on one line and includes PQ. I think I've addressed all the feedback from the previous versions. My current test box prints: scsi 2:0:1:0: Direct access HP 18.2G ATLAS10K3_18_SCA HP05 PQ: 0 ANSI: 2 Signed-off-by: Matthew Wilcox <matthew@wil.cx> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] hide EH backup data outside the scsi_cmndChristoph Hellwig2006-07-09
| | | | | | | | | | | | | | | | | Currently struct scsi_cmnd has various fields that are used to backup original data after the corresponding fields have been overridden for EH commands. This means drivers can easily get at it and misuse it. Due to the old_ naming this doesn't happen for most of them, but two that have different names have been used wrong a lot (see previous patch). Another downside is that they unessecarily bloat the scsi_cmnd size. This patch moves them onstack in scsi_send_eh_cmnd to fix those two issues aswell as allowing future EH fixes like moving the EH command submissions to use SG lists like everything else. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* Merge branch 'master' into upstreamJeff Garzik2006-06-22
|\ | | | | | | | | | | | | | | Conflicts: drivers/scsi/libata-core.c drivers/scsi/libata-scsi.c include/linux/pci_ids.h
| * [SCSI] remove scsi_request infrastructureChristoph Hellwig2006-06-10
| | | | | | | | | | | | | | | | | | With Achim patch the last user (gdth) is switched away from scsi_request so we an kill it now. Also disables some code in i2o_scsi that was broken since the sg driver stopped using scsi_requests. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* | [PATCH] SCSI: Introduce scsi_req_abort_cmd (REPOST)Luben Tuikov2006-05-15
|/ | | | | | | | | | | | | | | | Introduce scsi_req_abort_cmd(struct scsi_cmnd *). This function requests that SCSI Core start recovery for the command by deleting the timer and adding the command to the eh queue. It can be called by either LLDDs or SCSI Core. LLDDs who implement their own error recovery MAY ignore the timeout event if they generated scsi_req_abort_cmd. First post: http://marc.theaimsgroup.com/?l=linux-scsi&m=113833937421677&w=2 Signed-off-by: Luben Tuikov <ltuikov@yahoo.com> Signed-off-by: Tejun Heo <htejun@gmail.com>
* [SCSI] add SCSI_UNKNOWN and LUN transfer limit restrictionsJames Bottomley2006-04-13
| | | | | | | | | | | | | | Original From: Ingo Flaschberger <if@xip.at> To support the RA4100 array from Compaq. This patch now correctly handles SCSI_UNKNOWN types with regard to BLIST_REPORTLUNS2 (allow it) and cdb[1] LUN inclusion (don't). It also allows a BLIST_MAX_512 flag to restrict the maximum transfer length to 512 blocks (apparently this is an RA4100 problem). Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] for_each_possible_cpu: scsiKAMEZAWA Hiroyuki2006-04-13
| | | | | | | | | | | | | | | | for_each_cpu() actually iterates across all possible CPUs. We've had mistakes in the past where people were using for_each_cpu() where they should have been iterating across only online or present CPUs. This is inefficient and possibly buggy. We're renaming for_each_cpu() to for_each_possible_cpu() to avoid this in the future. This patch replaces for_each_cpu with for_each_possible_cpu. Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] Remove devfs support from the SCSI subsystemGreg KH2006-02-27
| | | | | | | | | | | | As devfs has been disabled from the kernel tree for a number of months now (5 to be exact), here's a patch against 2.6.16-rc1-git1 that removes support for it from the SCSI subsystem. The patch also removes the scsi_disk devfs_name field as it's no longer needed. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] SCSI core kmalloc2kzallocJes Sorensen2006-02-27
| | | | | | | | Change the core SCSI code to use kzalloc rather than kmalloc+memset where possible. Signed-off-by: Jes Sorensen <jes@sgi.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [PATCH] percpu data: only iterate over possible CPUsEric Dumazet2006-02-05
| | | | | | | | | | | | | | | | | | | | | | | percpu_data blindly allocates bootmem memory to store NR_CPUS instances of cpudata, instead of allocating memory only for possible cpus. As a preparation for changing that, we need to convert various 0 -> NR_CPUS loops to use for_each_cpu(). (The above only applies to users of asm-generic/percpu.h. powerpc has gone it alone and is presently only allocating memory for present CPUs, so it's currently corrupting memory). Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: James Bottomley <James.Bottomley@steeleye.com> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: Jens Axboe <axboe@suse.de> Cc: Anton Blanchard <anton@samba.org> Acked-by: William Irwin <wli@holomorphy.com> Cc: Andi Kleen <ak@muc.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [SCSI] turn most scsi semaphores into mutexesArjan van de Ven2006-01-12
| | | | | | | | the scsi layer is using semaphores in a mutex way, this patch converts these into using mutexes instead Signed-off-by: Arjan van de Ven <arjan@infradead.org> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] Kill the SCSI softirq handlingJens Axboe2006-01-09
| | | | | | | This patch moves the SCSI softirq handling to the block layer version. There should be no functional changes. Signed-off-by: Jens Axboe <axboe@suse.de>
* [PATCH] Fix a bug in scsi_get_commandMatthew Dobson2005-11-22
| | | | | | | | | | | scsi_get_command() attempts to write into a structure that may not have been successfully allocated. Move this write inside the if statement that ensures we won't panic the kernel with a NULL pointer dereference. Signed-off-by: Matthew Dobson <colpatch@us.ibm.com> Cc: James Bottomley <James.Bottomley@steeleye.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [SCSI] use {sdev,scmd,starget,shost}_printk in generic codeJeff Garzik2005-10-28
| | | | | rejections fixed and Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] move the mid-layer printk's over to shost/starget/sdev_printkJames Bottomley2005-10-28
| | | | | | | | | This should eliminate (at least in the mid layer) to make numeric assumptions about any of the enumeration variables. As a side effect, it will also make all the messages consistent and line us up nicely for the error logging strategy (if it ever shows itself again). Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [PATCH] gfp_t: drivers/scsiAl Viro2005-10-28
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [SCSI] fix oops on usb storage device disconnectJames Bottomley2005-09-19
| | | | | | | | | We fix the oops by enforcing the host state model. There have also been two extra states added: SHOST_CANCEL_RECOVERY and SHOST_DEL_RECOVERY so we can take the model through host removal while the recovery thread is active. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] fix warning in scsi_softirqakpm@osdl.org2005-08-12
| | | | | | | | | | From: Andrew Morton <akpm@osdl.org> drivers/scsi/scsi.c: In function `scsi_softirq': drivers/scsi/scsi.c:814: warning: int format, long int arg (arg 4) Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] add global timeout to the scsi mid-layerJames Bottomley2005-08-08
| | | | | | | | | | | | | | | | | | There are certain rogue devices (and the aic7xxx driver) that return BUSY or QUEUE_FULL forever. This code will apply a global timeout (of the total number of retries times the per command timer) to a given command. If it is exceeded, the command is completed regardless of its state. The patch also removes the unused field in the command: timeout and timeout_total. This solves the problem of detecting an endless loop in the mid-layer because of BUSY/QUEUE_FULL bouncing, but will not recover the device. In the aic7xxx case, the driver can be recovered by sending a bus reset, so possibly this should be tied into the error handler? Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] host state model update: reimplement scsi_host_cancelMike Anderson2005-07-30
| | | | | | | | | | Remove the old scsi_host_cancel function as it has not been working for sometime do to the device list possibly being empty when it is called and possible race issues. Add setting of SHOST_CANCEL at the state of beginning of scsi_remove_host. Signed-off-by: Mike Anderson <andmike@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] host state model update: replace old host bitmap stateMike Anderson2005-07-30
| | | | | | | | | | | Migrate the current SCSI host state model to a model like SCSI device is using. Signed-off-by: Mike Anderson <andmike@us.ibm.com> Rejections fixed up and Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] add TYPE_RBC to our type tableJames Bottomley2005-07-11
| | | | | | | Here's a tiny update that means we print the correct ASCII type information Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] remove scsi_cmnd->stateChristoph Hellwig2005-06-26
| | | | | | | | | We never look at it except for the old megaraid driver that abuses it for sending internal commands. That usage can be fixed easily because those internal commands are single-threaded by a mutex and we can easily use a completion there. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] remove scsi_cmnd->ownerChristoph Hellwig2005-06-26
| | | | | | never checked anywhere Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] remove scsi_cmnd->abort_reasonChristoph Hellwig2005-06-26
| | | | | | Never used for anything but printing it out in debug routines. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [PATCH] make various thing staticAdrian Bunk2005-06-24
| | | | | | | | Another rollup of patches which give various symbols static scope Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* merge by hand - fix up rejections in Documentation/DocBook/MakefileJames Bottomley2005-05-20
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| * [SCSI] call correct scsi_done function in scsi_dispatch_cmdMike Christie2005-05-01
| | | | | | | | | | | | | | | | | | | | | | scsi_dispatch_cmd currently calls scsi_done when the device is in the SDEV_DEL state, but at this point the command has not had a timer added to it (this is done a couple lines down) so scsi_done just returns and the command is lost. The attached patch made against 2.6.12-rc3 calls __scsi_done in this case so the comamnd will be returned upwards. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* | [SCSI] remove a timer race in scsi_queue_insert()Tejun Heo2005-05-20
|/ | | | | | | | | | | | | | scsi_queue_insert() has four callers. Three callers call with timer disabled and one (the second invocation in scsi_dispatch_cmd()) calls with timer activated. scsi_queue_insert() used to always call scsi_delete_timer() and ignore the return value. This results in race with timer expiration. Remove scsi_delete_timer() call from scsi_queue_insert() and make the caller delete timer and check the return value. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [PATCH] scsi: remove meaningless scsi_cmnd->serial_number_at_timeout field2005-04-18
| | | | | | | | | | | | | scsi_cmnd->serial_number_at_timeout doesn't serve any purpose anymore. All serial_number == serial_number_at_timeout tests are always true in abort callbacks. Kill the field. Also, as ->pid always equals ->serial_number and ->serial_number doesn't have any special meaning anymore, update comments above ->serial_number accordingly. Once we remove all uses of this field from all lldd's, this field should go. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [PATCH] scsi: remove unused scsi_cmnd->internal_timeout field2005-04-18
| | | | | | | | scsi_cmnd->internal_timeout field doesn't have any meaning anymore. Kill the field. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [PATCH] remove outdated print_* functions2005-04-18
| | | | | | | We have the scsi_print_* functions in the proper namespace for a long time now and there weren't a lot users left. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* Linux-2.6.12-rc2v2.6.12-rc2Linus Torvalds2005-04-16
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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