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path: root/drivers/scsi/advansys.c
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2015-12-03Merge branch 'mkp-fixes' into fixesJames Bottomley1-1/+1
2015-11-18advansys: fix big-endian buildsArnd Bergmann1-1/+1
Building the advansys driver in a big-endian configuration such as ARM allmodconfig shows a warning: drivers/scsi/advansys.c: In function 'adv_build_req': include/uapi/linux/byteorder/big_endian.h:32:26: warning: large integer implicitly truncated to unsigned type [-Woverflow] #define __cpu_to_le32(x) ((__force __le32)__swab32((x))) drivers/scsi/advansys.c:7806:22: note: in expansion of macro 'cpu_to_le32' scsiqp->sense_len = cpu_to_le32(SCSI_SENSE_BUFFERSIZE); It turns out that the commit that introduced this used the cpu_to_le32() incorrectly on an 8-bit field, which results in the sense_len to always be set to zero, as the SCSI_SENSE_BUFFERSIZE value gets moved to upper byte of the 32-bit intermediate. This removes the cpu_to_le32() call to restore the original version. I found this only by looking at the compiler output and have not done a full review for possible further endianess bugs in the same driver. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Fixes: 811ddc057aac ("advansys: use DMA-API for mapping sense buffer") Reviewed-by: Hannes Reinecke <hare@suse.de> Cc: stable@vger.kernel.org # v4.2+ Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2015-11-09scsi: use host wide tags by defaultChristoph Hellwig1-6/+0
This patch changes the !blk-mq path to the same defaults as the blk-mq I/O path by always enabling block tagging, and always using host wide tags. We've had blk-mq available for a few releases so bugs with this mode should have been ironed out, and this ensures we get better coverage of over tagging setup over different configs. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Jens Axboe <axboe@kernel.dk> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-06-13advansys: fix compilation errors and warnings when CONFIG_PCI is not setJohannes Thumshirn1-1/+4
Fix compilation errors on forgotten #include <linux/dmapool.h> and warnings when CONFIG_PCI is not set. Reported-by: Jim Davis <jim.epost@gmail.com> Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-05-25advansys: Update to version 3.5 and remove compilation warningHannes Reinecke1-20/+7
The driver has now been converted to DMA-API, so we should increase the version number and remove the compilation warning. Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-05-25advansys: Remove call to dma_cache_sync()Hannes Reinecke1-5/+5
Only required if the dma buffer has been allocated via dma_alloc_noncoherent(), which this one is not. With that call removed we can now also compile on ARM. Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-05-25advansys: use spin_lock_irqsave() in interrupt handlerHannes Reinecke1-2/+3
We should be using spin_lock_irqsave() when within the interrupt handler. Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-05-25advansys: Check for DMA mapping errorsHannes Reinecke1-5/+22
DMA mapping might fail, so we need to check for errors here. Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-05-25advansys: Remove cmd_per_lun settingHannes Reinecke1-18/+0
Ancient, and pretty much obsolete by now. Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-05-25advansys: Remove obsolete virtual memory mapping commentHannes Reinecke1-10/+0
Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-05-25advansys: Remove 'a_flag'Hannes Reinecke1-25/+7
Unused, so remove it. Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-05-25advansys: rename 'ASC_RQ_XX' to 'ADV_RQ_XX'Hannes Reinecke1-9/+9
These definitions are only ever used for the wide-scsi board, so they should be prefixed with 'ADV', not 'ASC'. Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-05-25advansys: Remove CC_VERY_LONG_SG_LISTHannes Reinecke1-238/+5
Was uncommented in the original driver, and I'm too lazy to figure out the conversion. Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-05-25advansys: Remove ASC_SCSI_REQ_QHannes Reinecke1-21/+10
Removed unused structure ASC_SCSI_REQ_Q and update the comments to 'ADV_SCSI_REQ_Q'. Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-05-25advansys: scsi_q1->data_addr is little endianHannes Reinecke1-4/+4
The 'data_addr' field is accessed by the board, and needs to be kept in little endian format. Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-05-25advansys: cleanup function return codesHannes Reinecke1-22/+13
Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-05-25advansys: Make AscIsrChipHalted() a void functionHannes Reinecke1-17/+13
AscIsrChipHalted will only ever return '0', so make it a void function. Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-05-25advansys: remove 'ERR' definitionHannes Reinecke1-6/+5
Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-05-25advansys: Remove 'TRUE' and 'FALSE' definitionsHannes Reinecke1-41/+38
Use 'bool' type instead. Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-05-25advansys: use standard data typesHannes Reinecke1-106/+66
No point in defining our own. Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-05-25advansys: use 'bool' instead of 'int'Hannes Reinecke1-16/+16
Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-05-25advansys: Use dma_pool for sg elementsHannes Reinecke1-63/+45
The sg elements should be allocated from a dma pool. And rename the structure to 'adv_sg_block' as they are only used by the wide board. Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-05-25advansys: Use DMA-API for mapping request blocksHannes Reinecke1-54/+54
Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-05-25advansys: Use DMA-API for carrier bufferHannes Reinecke1-133/+103
Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-05-25advansys: use DMA-API for mapping sense bufferHannes Reinecke1-9/+16
Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-05-25advansys: use shared host tag map for command lookupHannes Reinecke1-146/+79
Convert to use a shared host tag map for command lookup. This saves us having an internal structure and avoid the command pointer abuse. Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-05-25advansys: use host_resetHannes Reinecke1-16/+11
The advansys_reset() function is actually a host reset, not a bus reset. And there is no need to have a 'last_reset' value; the same value exists in struct Scsi_Host. Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-02-02scsi: print single-character strings with seq_putcRasmus Villemoes1-17/+17
Using seq_putc to print a single character saves at least a strlen() call and a memory access, and may also give a small .text reduction. Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Reviewed-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Christoph Hellwig <hch@lst.de>
2015-02-02scsi: merge consecutive seq_puts callsRasmus Villemoes1-28/+15
Consecutive seq_puts calls with literal strings may be replaced by a single call, saving a little .text. Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Reviewed-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Christoph Hellwig <hch@lst.de>
2015-02-02advansys: replace seq_printf with seq_putsRasmus Villemoes1-80/+75
Using seq_printf to print a simple string is a lot more expensive than it needs to be, since seq_puts exists. Replace seq_printf with seq_puts when possible. Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Reviewed-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-12-04scsi: remove MSG_*_TAG definesChristoph Hellwig1-4/+4
For SPI drivers use the message definitions from scsi.h, and for target drivers introduce a new TCM_*_TAG namespace. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Bart Van Assche <bvanassche@acm.org> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com
2014-11-24scsi: drop reason argument from ->change_queue_depthChristoph Hellwig1-5/+3
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>
2014-11-12scsi: don't set tagging state from scsi_adjust_queue_depthChristoph Hellwig1-5/+2
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>
2014-07-25scsi: convert host_busy to atomic_tChristoph Hellwig1-2/+2
Avoid taking the host-wide host_lock to check the per-host queue limit. Instead we do an atomic_inc_return early on to grab our slot in the queue, and if necessary decrement it after finishing all checks. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Webb Scales <webbnh@hp.com> Acked-by: Jens Axboe <axboe@kernel.dk> Tested-by: Bart Van Assche <bvanassche@acm.org> Tested-by: Robert Elliott <elliott@hp.com>
2014-07-17scsi: use 64-bit value for 'max_luns'Hannes Reinecke1-1/+1
Now that we're using 64-bit LUNs internally we need to increase the size of max_luns to 64 bits, too. 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>
2013-10-25[SCSI] advansys: Remove 'last_reset' referencesHannes Reinecke1-4/+4
Serves no purpose whatsoever. Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-04-09advansys: fix buggered formats - unsigned long != u32 on 64bitAl Viro1-13/+13
asc_prt_line() had been hiding several places where formats had not matched the argument types. The previous commit has finally made them visible... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-04-09advansys: switch to ->show_info()Al Viro1-837/+327
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-01-03Drivers: scsi: remove __dev* attributes.Greg Kroah-Hartman1-77/+75
CONFIG_HOTPLUG is going away as an option. As a result, the __dev* markings need to be removed. This change removes the use of __devinit, __devexit_p, __devinitdata, __devinitconst, and __devexit from these drivers. Based on patches originally written by Bill Pemberton, but redone by me in order to handle some of the coding style issues better, by hand. Cc: Bill Pemberton <wfp5p@virginia.edu> Cc: Adam Radford <linuxraid@lsi.com> Cc: "James E.J. Bottomley" <JBottomley@parallels.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-28Remove all #inclusions of asm/system.hDavid Howells1-1/+0
Remove all #inclusions of asm/system.h preparatory to splitting and killing it. Performed with the following command: perl -p -i -e 's!^#\s*include\s*<asm/system[.]h>.*\n!!' `grep -Irl '^#\s*include\s*<asm/system[.]h>' *` Signed-off-by: David Howells <dhowells@redhat.com>
2011-03-31Fix common misspellingsLucas De Marchi1-1/+1
Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
2010-11-16SCSI host lock push-downJeff Garzik1-1/+3
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>
2010-06-16fix typos concerning "initiali[zs]e"Uwe Kleine-König1-1/+1
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-05-01[SCSI] advansys: fix narrow board error pathHerton Ronaldo Krzesinski1-14/+36
Error handling on advansys_board_found is fixed, because it's buggy in the case we have an ASC_NARROW_BOARD set and failure happens on AscInitAsc1000Driver step: it was freeing items of wrong struct in the dvc_var union of struct asc_board, which could lead to an oops in the case we set some of the fields in struct of narrow board as code was choosing to always freeing wide board fields, and not everything was being freed/released properly. Signed-off-by: Herton Ronaldo Krzesinski <herton@mandriva.com.br> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-03-27[SCSI] advansys: fix regression with request_firmware changeHerton Ronaldo Krzesinski1-0/+8
On newer kernels users of advansys module are reporting system hang when trying to load it without firmware files present. After looking closely at description on https://qa.mandriva.com/show_bug.cgi?id=53220, I think this is related to commit "[SCSI] advansys: use request_firmware". The problem is that after switch to request_firmware, asc_dvc->err_code isn't being set when firmware files aren't found or loading fails. err_code is used by the driver to judge if there was a fatal error or not, as can be seen for example on advansys_board_found, which will only return -ENODEV when err_code is set. Because err_code isn't being set when request_firmware fails, this is a change of behaviour of the code before request_firmware addition, making it continue to load and it fails later as the firmware wasn't really loaded. Signed-off-by: Herton Ronaldo Krzesinski <herton@mandriva.com.br> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-12-04tree-wide: fix misspelling of "definition" in commentsAdam Buchbinder1-1/+1
"Definition" is misspelled "defintion" in several comments; this patch fixes them. No code changes. Signed-off-by: Adam Buchbinder <adam.buchbinder@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-04-03[SCSI] advansys: use request_firmwareJaswinder Singh Rajput1-1630/+101
Firmware blob looks like this... __le32 checksum unsigned char data[] Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-01-02[SCSI] struct device - replace bus_id with dev_name(), dev_set_name()Kay Sievers1-1/+1
[jejb: limit ioctl to returning 20 characters to avoid overrun on long device names and add a few more conversions] Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-29[SCSI] advansys, arcmsr, ipr, nsp32, qla1280, stex: use pci_ioremap_bar()Arjan van de Ven1-2/+1
Use the newly introduced pci_ioremap_bar() function in drivers/scsi. pci_ioremap_bar() just takes a pci device and a bar number, with the goal of making it really hard to get wrong, while also having a central place to stick sanity checks. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Acked-by: Matthew Wilcox <willy@linux.intel.com> Cc: Brian King <brking@us.ibm.com> Cc: Ed Lin <ed.lin@promise.com> Cc: Nick Cheng <nick.cheng@areca.com.tw> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-11-30advansys fix on ISA-less configsAl Viro1-0/+4
The code if (shost->dma_channel != NO_ISA_DMA) free_dma(shost->dma_channel); in there is triggerable only if we have CONFIG_ISA (we only set ->dma_channel to something other than NO_ISA_DMA under #ifdef CONFIG_ISA). OTOH, free_dma() is not guaranteed to be there in absense of CONFIG_ISA. IOW, driver runs into undefined symbols on PCI-but-not-ISA configs (e.g. on frv) and it's a false positive. Fix: put the entire if () under #ifdef CONFIG_ISA; behaviour doesn't change and dependency on free_dma() disappears for !CONFIG_ISA. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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