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path: root/drivers/scsi/sd.c
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* [SCSI] allow displaying and setting of cache type via sysfsJames Bottomley2006-03-19
| | | | | | | | | | | | | | I think I promised to do this two years ago This patch adds a scsi_disk class with the cache type and FUA parameters, so user land application can easily obtain them without having to parse dmesg. It also allows setting the cache type (use with care...) This patch is a bit dangerous because I've replaced the disk kref with a class device reference ... Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] MODULE_ALIAS_{BLOCK,CHAR}DEV_MAJOR for drivers/scsiRene Herman2006-03-12
| | | | | | | | | | | | | | Add device-major aliases in drivers/scsi, allowing kmod autoload: MODULE_ALIAS_CHARDEV_MAJOR(SCSI_CHANGER_MAJOR) MODULE_ALIAS_CHARDEV_MAJOR(OSST_MAJOR) MODULE_ALIAS_CHARDEV_MAJOR(SCSI_TAPE_MAJOR) MODULE_ALIAS_BLOCKDEV_MAJOR(SCSI_CDROM_MAJOR) MODULE_ALIAS_BLOCKDEV_MAJOR(SCSI_DISKN_MAJOR) Signed-off-by: Andrew Morton <akpm@osdl.org> Acked-by: Kai Makisara <kai.makisara@kolumbus.fi> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] scsi_lib: fix recognition of cache type of Initio SBP-2 bridgesAl Viro2006-02-28
| | | | | | | | | | Regardless what mode page was asked for, Initio INIC-14x0 and INIC-2430 always return page 6 without mode page headers. Try to recognise this as a special case in scsi_mode_sense and setting the mode sense headers accordingly. Signed-off-by: Al Viro <viro@ftp.linux.org.uk> 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] sd: fix memory corruption with broken mode page headersAl Viro2006-02-26
| | | | | | | | | | | | | | | There's a problem in sd where we blindly believe the length of the headers and block descriptors. Some devices return insane values for these and cause our length to end up greater than the actual buffer size, so check to make sure. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Also removed the buffer size magic number (512) and added DPOFUA of zero to the defaults Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [SCSI] always handle REQ_BLOCK_PC requests in common codeChristoph Hellwig2006-01-14
| | | | | | | | | | | | | | LLDDs should never see REQ_BLOCK_PC requests, we can handle them just fine in the core code. There is a small behaviour change in that some check in sr's rw_intr are bypassed, but I consider the old behaviour a bug. Mike found this cleanup opportunity and provdided early patches, so all the credit goes to him, even if I redid the patches from scratch beause that was easier than forward-porting the old patches. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [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>
* [PATCH] Add block_device_operations.getgeo block device methodChristoph Hellwig2006-01-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | HDIO_GETGEO is implemented in most block drivers, and all of them have to duplicate the code to copy the structure to userspace, as well as getting the start sector. This patch moves that to common code [1] and adds a ->getgeo method to fill out the raw kernel hd_geometry structure. For many drivers this means ->ioctl can go away now. [1] the s390 block drivers are odd in this respect. xpram sets ->start to 4 always which seems more than odd, and the dasd driver shifts the start offset around, probably because of it's non-standard sector size. Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Jens Axboe <axboe@suse.de> Cc: <mike.miller@hp.com> Cc: Jeff Dike <jdike@addtoit.com> Cc: Paolo Giarrusso <blaisorblade@yahoo.it> Cc: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl> Cc: Neil Brown <neilb@cse.unsw.edu.au> Cc: Markus Lidel <Markus.Lidel@shadowconnect.com> Cc: Russell King <rmk@arm.linux.org.uk> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: James Bottomley <James.Bottomley@steeleye.com> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [BLOCK] scsi: add FUA support to sdTejun Heo2006-01-06
| | | | | | | Add FUA support for barriers to SCSI disk. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jens Axboe <axboe@suse.de>
* [BLOCK] update SCSI to use new blk_ordered for barriersTejun Heo2006-01-06
| | | | | | | | | | | All ordered request related stuff delegated to HLD. Midlayer now doens't deal with ordered setting or prepare_flush callback. sd.c updated to deal with blk_queue_ordered setting. Currently, ordered tag isn't used as SCSI midlayer cannot guarantee request ordering. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jens Axboe <axboe@suse.de>
* [BLOCK] add @uptodate to end_that_request_last() and @error to rq_end_io_fn()Tejun Heo2006-01-06
| | | | | | | | | | | | | | | | | add @uptodate argument to end_that_request_last() and @error to rq_end_io_fn(). there's no generic way to pass error code to request completion function, making generic error handling of non-fs request difficult (rq->errors is driver-specific and each driver uses it differently). this patch adds @uptodate to end_that_request_last() and @error to rq_end_io_fn(). for fs requests, this doesn't really matter, so just using the same uptodate argument used in the last call to end_that_request_first() should suffice. imho, this can also help the generic command-carrying request jens is working on. Signed-off-by: tejun heo <htejun@gmail.com> Signed-Off-By: Jens Axboe <axboe@suse.de>
* Fix up SCSI mismergeJames Bottomley2005-12-15
| | | | I forgot to do a git-update-cache on the merged files ...
* Merge by hand (conflicts in scsi_lib.c)James Bottomley2005-12-15
|\ | | | | | | | | | | | | | | This merge is pretty extensive. The conflict is over the new req->retries parameter, so I had to change the prototype to scsi_setup_blk_pc_cmnd() and the usage in sd, sr and st. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] Consolidate REQ_BLOCK_PC handling path (fix ipod panic)James Bottomley2005-12-14
| | | | | | | | | | | | | | | | This follows on from Jens' patch and consolidates all of the ULD separate handlers for REQ_BLOCK_PC into a single call which has his fix for our direction bug. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* | [SCSI] sd: Always do write-protect checkAlan Stern2005-12-13
|/ | | | | | | | | Since nobody has offered an explanation for why the sd driver makes a write-protect check only for devices with removable media, I'm submitting this patch to get rid of the removable-media test. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] sd: fix issue_flushJames Bottomley2005-11-09
| | | | | | | | sd_issue_flush() is called from atomic context so we can't use the semaphore based routines to get a reference to the scsi_disk. Assume something else already got the reference so we can safely use it. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] sd: Fix refcountingAlan Stern2005-11-05
| | | | | | | | | | | | | | | | | Currently the driver takes a reference only for requests coming by way of the gendisk, not for requests coming by way of the struct device or struct scsi_device. Such requests can arrive in the rescan, flush, and shutdown pathways. The patch also makes the scsi_disk keep a reference to the underlying scsi_device, and it erases the scsi_device's pointer to the scsi_disk when the scsi_device is removed (since the pointer should no longer be used). This resolves Bugzilla entry #5237. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> 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>
* [SCSI] avoid overflows in disk size calculationsJames Bottomley2005-10-28
| | | | | | Be more careful about doing the arithmetic in the non-LBD case. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] scsi: sd, sr, st, and scsi_lib all fail to copy cmd_len to new cmdTimothy Thelin2005-09-14
| | | | | | | | | This fixes an issue in scsi command initialization from a request where sd, sr, st, and scsi_lib all fail to copy the request's cmd_len to the scsi command's cmd_len field. Signed-off-by: Timothy Thelin <timothy.thelin@wdc.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* Merge by hand (conflicts in sd.c)James Bottomley2005-09-06
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| * [SCSI] sd: pause in sd_spinup_disk for slow USB devicesAlan Stern2005-09-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds a delay tailored for USB flash devices that are slow to initialize their firmware. The symptom is a repeated Unit Attention with ASC=0x28 (Not Ready to Ready transition). The patch will wait for up to 5 seconds for such devices to become ready. Normal devices won't send the repeated Unit Attention sense key and hence won't trigger the patch. This fixes a problem with James Roberts-Thomson's USB device, and I've seen several reports of other devices exhibiting the same symptoms -- presumably they will be helped as well. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* | [SCSI] convert sd to scsi_execute_req (and update the scsi_execute_req API)James Bottomley2005-08-28
| | | | | | | | | | | | | | | | | | This one removes struct scsi_request entirely from sd. In the process, I noticed we have no callers of scsi_wait_req who don't immediately normalise the sense, so I updated the API to make it take a struct scsi_sense_hdr instead of simply a big sense buffer. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* | [SCSI] convert the remaining mid-layer pieces to scsi_execute_reqJames Bottomley2005-08-28
|/ | | | | | | After this, we just have some drivers, all the ULDs and the SPI transport class using scsi_wait_req(). Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] Redundant this_count check in sd_init_command()Chen, Kenneth W2005-07-14
| | | | | | | | | | | | I was going over the scsi I/O submit path, when sd_init_command construct the scsi command, this_count is already checked in the previous else if clause. Why does it need to check it again in the last else block? Patch to delete the spurious check. Signed-off-by: Ken Chen <kenneth.w.chen@intel.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] TYPE_RBC cache fixes (sbp2.c affected)Al Viro2005-05-26
| | | | | | | | | | | | | | | | | | | | | | | | a) TYPE_SDAD renamed to TYPE_RBC and taken to scsi.h b) in sbp2.c remapping of TYPE_RPB to TYPE_DISK turned off c) relevant places in midlayer and sd.c taught to accept TYPE_RBC d) sd.c::sd_read_cache_type() looks into page 6 when dealing with TYPE_RBC - these guys have writeback cache flag there and are not guaranteed to have page 8 at all. e) sd_read_cache_type() got an extra sanity check - it checks that it got the page it asked for before using its contents. And screams if mismatch had happened. Rationale: there are broken devices out there that are "helpful" enough to go for "I don't have a page you've asked for, here, have another one". For example, PL3507 had been caught doing just that... f) sbp2 sets sdev->use_10_for_rw and sdev->use_10_for_ms instead of bothering to remap READ6/WRITE6/MOD_SENSE, so most of the conversions in there are gone now. Incidentally, I wonder if USB storage devices that have no mode page 8 are simply RBC ones. I haven't touched that, but it might be interesting to check... Signed-off-by: Al Viro <viro@parcelfarce.linux.theplanet.co.uk> 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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