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* [SCSI] megaraid_sas: Rename megaraid_sas.c to megaraid_sas_base.cadam radford2010-12-211-5193/+0
| | | | | | | | This patch renames megaraid_sas.c to megaraid_sas_base.c to facilitate other files in the compile. Signed-off-by: Adam Radford <aradford@gmail.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
* SCSI host lock push-downJeff Garzik2010-11-161-1/+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>
* [SCSI] megaraid_sas: Version and documentation updateYang, Bo2010-10-261-1/+1
| | | | | Signed-off-by Bo Yang <bo.yang@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
* [SCSI] megaraid_sas: Add three times Online controller resetYang, Bo2010-10-261-1/+69
| | | | | | | | | | | If fw didn't raise the interrupt with the fw state change to driver and fw goes to failure state, driver Will check the FW state in driver's timeout routine and issue the reset if need. Driver will do the OCR upto three times until kill adapter. Also driver will issue OCR before driver kill adapter even if fw in operational state. Signed-off-by Bo Yang <bo.yang@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
* [SCSI] megaraid_sas: Add input parameter for max_sectorsYang, Bo2010-10-261-0/+30
| | | | | | | | | Driver add the input parameters support for max_sectors for megaraid sas gen2 chip. Customer can set the max_sectors support to 1MB for gen2 chip during the driver load. Signed-off-by Bo Yang <bo.yang@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
* [SCSI] megaraid_sas: support devices update flagYang, Bo2010-10-261-0/+24
| | | | | | | | | Driver added the Device update flag to tell LSI application driver whether to do the device Update. LSI MegaRAID SAS application will check this flag to decide if it needs to update the Device or not. Signed-off-by Bo Yang <bo.yang@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6Linus Torvalds2010-10-221-50/+706
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (84 commits) [SCSI] be2iscsi: SGE Len == 64K [SCSI] be2iscsi: Remove premature free of cid [SCSI] be2iscsi: More time for FW [SCSI] libsas: fix bug for vacant phy [SCSI] sd: Fix overflow with big physical blocks [SCSI] st: add MTWEOFI to write filemarks without flushing drive buffer [SCSI] libsas: Don't issue commands to devices that have been hot-removed [SCSI] megaraid_sas: Add Online Controller Reset to MegaRAID SAS drive [SCSI] lpfc 8.3.17: Update lpfc driver version to 8.3.17 [SCSI] lpfc 8.3.17: Replace function reset methodology [SCSI] lpfc 8.3.17: SCSI fixes [SCSI] lpfc 8.3.17: BSG fixes [SCSI] lpfc 8.3.17: SLI Additions and Fixes [SCSI] lpfc 8.3.17: Code Cleanup and Locking fixes [SCSI] zfcp: Remove scsi_cmnd->serial_number from debug traces [SCSI] ipr: fix array error logging [SCSI] aha152x: enable PCMCIA on 64bit [SCSI] scsi_dh_alua: Handle all states correctly [SCSI] cxgb4i: connection and ddp setting update [SCSI] cxgb3i: fixed connection over vlan ...
| * [SCSI] megaraid_sas: Add Online Controller Reset to MegaRAID SAS drivebo yang2010-10-071-50/+706
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | To add the Online controller reset support, driver need to do: a). reset the controller chips -- Xscale and Gen2 which will change the function calls and add the reset function related to this two chips. b). during the reset, driver will store the pending cmds which not returned by FW to driver's pending queue. Driver will re-issue those pending cmds again to FW after the OCR finished. c). In driver's timeout routine, driver will report to OS as reset. Also driver's queue routine will block the cmds until the OCR finished. d). in Driver's ISR routine, if driver get the FW state as state change, FW in Failure status and FW support online controller reset (OCR), driver will start to do the controller reset. e). In driver's IOCTL routine, the application cmds will wait for the OCR to finish, then issue the cmds to FW. Signed-off-by Bo Yang <bo.yang@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
* | Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bklLinus Torvalds2010-10-221-0/+1
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl: vfs: make no_llseek the default vfs: don't use BKL in default_llseek llseek: automatically add .llseek fop libfs: use generic_file_llseek for simple_attr mac80211: disallow seeks in minstrel debug code lirc: make chardev nonseekable viotape: use noop_llseek raw: use explicit llseek file operations ibmasmfs: use generic_file_llseek spufs: use llseek in all file operations arm/omap: use generic_file_llseek in iommu_debug lkdtm: use generic_file_llseek in debugfs net/wireless: use generic_file_llseek in debugfs drm: use noop_llseek
| * | llseek: automatically add .llseek fopArnd Bergmann2010-10-151-0/+1
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | All file_operations should get a .llseek operation so we can make nonseekable_open the default for future file operations without a .llseek pointer. The three cases that we can automatically detect are no_llseek, seq_lseek and default_llseek. For cases where we can we can automatically prove that the file offset is always ignored, we use noop_llseek, which maintains the current behavior of not returning an error from a seek. New drivers should normally not use noop_llseek but instead use no_llseek and call nonseekable_open at open time. Existing drivers can be converted to do the same when the maintainer knows for certain that no user code relies on calling seek on the device file. The generated code is often incorrectly indented and right now contains comments that clarify for each added line why a specific variant was chosen. In the version that gets submitted upstream, the comments will be gone and I will manually fix the indentation, because there does not seem to be a way to do that using coccinelle. Some amount of new code is currently sitting in linux-next that should get the same modifications, which I will do at the end of the merge window. Many thanks to Julia Lawall for helping me learn to write a semantic patch that does all this. ===== begin semantic patch ===== // This adds an llseek= method to all file operations, // as a preparation for making no_llseek the default. // // The rules are // - use no_llseek explicitly if we do nonseekable_open // - use seq_lseek for sequential files // - use default_llseek if we know we access f_pos // - use noop_llseek if we know we don't access f_pos, // but we still want to allow users to call lseek // @ open1 exists @ identifier nested_open; @@ nested_open(...) { <+... nonseekable_open(...) ...+> } @ open exists@ identifier open_f; identifier i, f; identifier open1.nested_open; @@ int open_f(struct inode *i, struct file *f) { <+... ( nonseekable_open(...) | nested_open(...) ) ...+> } @ read disable optional_qualifier exists @ identifier read_f; identifier f, p, s, off; type ssize_t, size_t, loff_t; expression E; identifier func; @@ ssize_t read_f(struct file *f, char *p, size_t s, loff_t *off) { <+... ( *off = E | *off += E | func(..., off, ...) | E = *off ) ...+> } @ read_no_fpos disable optional_qualifier exists @ identifier read_f; identifier f, p, s, off; type ssize_t, size_t, loff_t; @@ ssize_t read_f(struct file *f, char *p, size_t s, loff_t *off) { ... when != off } @ write @ identifier write_f; identifier f, p, s, off; type ssize_t, size_t, loff_t; expression E; identifier func; @@ ssize_t write_f(struct file *f, const char *p, size_t s, loff_t *off) { <+... ( *off = E | *off += E | func(..., off, ...) | E = *off ) ...+> } @ write_no_fpos @ identifier write_f; identifier f, p, s, off; type ssize_t, size_t, loff_t; @@ ssize_t write_f(struct file *f, const char *p, size_t s, loff_t *off) { ... when != off } @ fops0 @ identifier fops; @@ struct file_operations fops = { ... }; @ has_llseek depends on fops0 @ identifier fops0.fops; identifier llseek_f; @@ struct file_operations fops = { ... .llseek = llseek_f, ... }; @ has_read depends on fops0 @ identifier fops0.fops; identifier read_f; @@ struct file_operations fops = { ... .read = read_f, ... }; @ has_write depends on fops0 @ identifier fops0.fops; identifier write_f; @@ struct file_operations fops = { ... .write = write_f, ... }; @ has_open depends on fops0 @ identifier fops0.fops; identifier open_f; @@ struct file_operations fops = { ... .open = open_f, ... }; // use no_llseek if we call nonseekable_open //////////////////////////////////////////// @ nonseekable1 depends on !has_llseek && has_open @ identifier fops0.fops; identifier nso ~= "nonseekable_open"; @@ struct file_operations fops = { ... .open = nso, ... +.llseek = no_llseek, /* nonseekable */ }; @ nonseekable2 depends on !has_llseek @ identifier fops0.fops; identifier open.open_f; @@ struct file_operations fops = { ... .open = open_f, ... +.llseek = no_llseek, /* open uses nonseekable */ }; // use seq_lseek for sequential files ///////////////////////////////////// @ seq depends on !has_llseek @ identifier fops0.fops; identifier sr ~= "seq_read"; @@ struct file_operations fops = { ... .read = sr, ... +.llseek = seq_lseek, /* we have seq_read */ }; // use default_llseek if there is a readdir /////////////////////////////////////////// @ fops1 depends on !has_llseek && !nonseekable1 && !nonseekable2 && !seq @ identifier fops0.fops; identifier readdir_e; @@ // any other fop is used that changes pos struct file_operations fops = { ... .readdir = readdir_e, ... +.llseek = default_llseek, /* readdir is present */ }; // use default_llseek if at least one of read/write touches f_pos ///////////////////////////////////////////////////////////////// @ fops2 depends on !fops1 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @ identifier fops0.fops; identifier read.read_f; @@ // read fops use offset struct file_operations fops = { ... .read = read_f, ... +.llseek = default_llseek, /* read accesses f_pos */ }; @ fops3 depends on !fops1 && !fops2 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @ identifier fops0.fops; identifier write.write_f; @@ // write fops use offset struct file_operations fops = { ... .write = write_f, ... + .llseek = default_llseek, /* write accesses f_pos */ }; // Use noop_llseek if neither read nor write accesses f_pos /////////////////////////////////////////////////////////// @ fops4 depends on !fops1 && !fops2 && !fops3 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @ identifier fops0.fops; identifier read_no_fpos.read_f; identifier write_no_fpos.write_f; @@ // write fops use offset struct file_operations fops = { ... .write = write_f, .read = read_f, ... +.llseek = noop_llseek, /* read and write both use no f_pos */ }; @ depends on has_write && !has_read && !fops1 && !fops2 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @ identifier fops0.fops; identifier write_no_fpos.write_f; @@ struct file_operations fops = { ... .write = write_f, ... +.llseek = noop_llseek, /* write uses no f_pos */ }; @ depends on has_read && !has_write && !fops1 && !fops2 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @ identifier fops0.fops; identifier read_no_fpos.read_f; @@ struct file_operations fops = { ... .read = read_f, ... +.llseek = noop_llseek, /* read uses no f_pos */ }; @ depends on !has_read && !has_write && !fops1 && !fops2 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @ identifier fops0.fops; @@ struct file_operations fops = { ... +.llseek = noop_llseek, /* no read or write fn */ }; ===== End semantic patch ===== Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Julia Lawall <julia@diku.dk> Cc: Christoph Hellwig <hch@infradead.org>
* / scsi: autoconvert trivial BKL users to private mutexArnd Bergmann2010-09-151-2/+0
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | All these files use the big kernel lock in a trivial way to serialize their private file operations, typically resulting from an earlier semi-automatic pushdown from VFS. None of these drivers appears to want to lock against other code, and they all use the BKL as the top-level lock in their file operations, meaning that there is no lock-order inversion problem. Consequently, we can remove the BKL completely, replacing it with a per-file mutex in every case. Using a scripted approach means we can avoid typos. file=$1 name=$2 if grep -q lock_kernel ${file} ; then if grep -q 'include.*linux.mutex.h' ${file} ; then sed -i '/include.*<linux\/smp_lock.h>/d' ${file} else sed -i 's/include.*<linux\/smp_lock.h>.*$/include <linux\/mutex.h>/g' ${file} fi sed -i ${file} \ -e "/^#include.*linux.mutex.h/,$ { 1,/^\(static\|int\|long\)/ { /^\(static\|int\|long\)/istatic DEFINE_MUTEX(${name}_mutex); } }" \ -e "s/\(un\)*lock_kernel\>[ ]*()/mutex_\1lock(\&${name}_mutex)/g" \ -e '/[ ]*cycle_kernel_lock();/d' else sed -i -e '/include.*\<smp_lock.h\>/d' ${file} \ -e '/cycle_kernel_lock()/d' fi Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: linux-scsi@vger.kernel.org Cc: "James E.J. Bottomley" <James.Bottomley@suse.de>
* include cleanup: Update gfp.h and slab.h includes to prepare for breaking ↵Tejun Heo2010-03-301-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6Linus Torvalds2010-02-261-1/+245
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (158 commits) [SCSI] Fix printing of failed 32-byte commands [SCSI] Fix printing of variable length commands [SCSI] libsrp: fix bug in ADDITIONAL CDB LENGTH interpretation [SCSI] scsi_dh_alua: Add IBM Power Virtual SCSI ALUA device to dev list [SCSI] scsi_dh_alua: add netapp to dev list [SCSI] qla2xxx: Update version number to 8.03.02-k1. [SCSI] qla2xxx: EEH: Restore PCI saved state during pci slot reset. [SCSI] qla2xxx: Add firmware ETS burst support. [SCSI] qla2xxx: Correct loop-resync issues during SNS scans. [SCSI] qla2xxx: Correct use-after-free issue in terminate_rport_io callback. [SCSI] qla2xxx: Correct EH bus-reset handling. [SCSI] qla2xxx: Proper clean-up of BSG requests when request times out. [SCSI] qla2xxx: Initialize payload receive length in failure path of vendor commands [SCSI] fix duplicate removal on error path in scsi_sysfs_add_sdev [SCSI] fix refcounting bug in scsi_get_host_dev [SCSI] fix memory leak in scsi_report_lun_scan [SCSI] lpfc: correct PPC build failure [SCSI] raid_class: add raid1e [SCSI] mpt2sas: Do not call sas_is_tlr_enabled for RAID volumes. [SCSI] zfcp: Introduce header file for qdio structs and inline functions ...
| * [SCSI] megaraid_sas: version and documentation updateYang, Bo2010-02-171-1/+1
| | | | | | | | | | Signed-off-by Bo Yang<bo.yang@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| * [SCSI] megaraid_sas: driver fixed the device update issueYang, Bo2010-02-171-0/+142
| | | | | | | | | | | | | | | | driver fixed the device update issue after get the AEN PD delete/ADD and LD add/delete from FW. Signed-off-by Bo Yang<bo.yang@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| * [SCSI] megaraid_sas: add the logical drive list to driverYang, Bo2010-02-171-0/+95
| | | | | | | | | | | | | | | | | | Driver issue the get ld list to fw to get the logic drive list. Driver will keep the logic drive list for the internal use after driver load. Signed-off-by Bo Yang<bo.yang@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| * [SCSI] megaraid_sas: Zero pad_0 in mfi structureYang, Bo2010-02-171-0/+7
| | | | | | | | | | | | | | | | Add the pad_0 in mfi frame structure to 0 to fix the context value larger than 32bit value issue. Signed-off-by Bo Yang<bo.yang@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
* | [SCSI] megaraid_sas: fix for 32bit appsTomas Henzl2010-02-191-2/+16
|/ | | | | | | | | | | | | | | | | | | | | | It looks like this patch - commit 7b2519afa1abd1b9f63aa1e90879307842422dae Author: Yang, Bo <Bo.Yang@lsi.com> Date: Tue Oct 6 14:52:20 2009 -0600 [SCSI] megaraid_sas: fix 64 bit sense pointer truncation has caused a problem for 32bit programs with 64bit os - http://bugzilla.kernel.org/show_bug.cgi?id=15001 fix by converting the user space 32bit pointer to a 64 bit one when needed. [jejb: fix up some 64 bit warnings] Signed-off-by: Tomas Henzl <thenzl@redhat.com> Cc: Bo Yang <Bo.Yang@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
* [SCSI] megaraid_sas: remove sysfs poll_mode_io world writeable permissionsBryn M. Reeves2010-01-121-1/+1
| | | | | | | | | | | | /sys/bus/pci/drivers/megaraid_sas/poll_mode_io defaults to being world-writable, which seems bad (letting any user affect kernel driver behavior). This turns off group and user write permissions, so that on typical production systems only root can write to it. Signed-off-by: Bryn M. Reeves <bmr@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [SCSI] megaraid_sas: make driver PCI legacy I/O port free driverNoriyuki Fujii2009-12-101-5/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | On the large servers, I/O port resource may not be assigned to all the PCI devices since it is limited (to 64KB on Intel Architecture[1]) and it may also be fragmented (I/O base register of PCI-to-PCI bridge will usually be aligned to a 4KB boundary[2]). If no I/O port resource is assigned to devices, those devices do not work. [1] Some machines support 64KB I/O port space per PCI segment. [2] Some P2P bridges support optional 1KB aligned I/O base. Therefore, I made a patch for MegaRAID SAS driver to make PCI legacy I/O port free. I have also tested the patch and it had no problem. The way to make PCI legacy I/O port free is the same as Fusion-MPT driver's and it has been merged into 2.6.30.4. This has already been fixed in e1000 and lpfc. As a result of the above, the driver can handle its device even when there are a huge number of PCI devices being used on the system and no I/O port region assigned to the device. Signed-off-by: Noriyuki Fujii <n-fujii@np.css.fujitsu.com> Acked-by: "Yang, Bo" <Bo.Yang@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
* [SCSI] megaraid_sas: Update version number and documentationYang, Bo2009-10-291-1/+1
| | | | | Signed-off-by Bo Yang<bo.yang@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
* [SCSI] megaraid_sas: use the firmware boot timeout when waiting for commandsYang, Bo2009-10-291-11/+17
| | | | | | | | use the constant MEGASAS_RESET_WAIT_TIME when waiting for firmware commands to complete (currently 3 minutes). Signed-off-by Bo Yang<bo.yang@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
* [SCSI] megaraid_sas: fix 64 bit sense pointer truncationYang, Bo2009-10-291-4/+4
| | | | | | | | | The current sense pointer is cast to a u32 pointer, which can truncate on 64 bits. Fix by using unsigned long instead. Signed-off-by Bo Yang<bo.yang@lsi.com> Cc: stable@kernel.org Signed-off-by: James Bottomley <James.Bottomley@suse.de>
* [SCSI] megaraid_sas: Add the support for updating the OS after ↵Yang, Bo2009-10-291-1/+124
| | | | | | | | | | | | | | | | adding/removing the devices from FW Driver will update the OS devices after adding and deleting the device from FW. When driver receive add or delete AEN from FW, driver will send the DCMD cmd to get the System PD list from FW. Then driver will check if this device already in the OS: If add event and OS don't have the device (but it is in the list), driver add the device to OS, otherwise driver will not add. If remove event, driver will check the list, if is not in the list, but OS have the device, driver will remove the device. Signed-off-by Bo Yang<bo.yang@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
* [SCSI] megaraid_sas: Fix the fix for fw hang caused by megaraid sas applicationYang, Bo2009-10-291-12/+63
| | | | | | | | | | | Add a lock to the skinny firmware initialisation sequence to prevent the two stage write being non atomic if multiple instances use it. Add a flag to the driver shutdown sequence to prevent aen ioctls being called after shutdown begins. Signed-off-by Bo Yang<bo.yang@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
* [SCSI] megaraid_sas: add the IEEE SGE support to SAS2 controllerYang, Bo2009-10-291-7/+73
| | | | | | | | To increase the performance, megaraid sas driver added the IEEE SGE support to support SAS2 controller. Signed-off-by Bo Yang<bo.yang@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
* [SCSI] megaraid_sas: allocate the application cmds to sas2 controllerYang, Bo2009-10-291-3/+21
| | | | | | | | MegaRAID SAS2 controller ioctl can't use 32 cmd for applications. Driver need to divide different number of cmds to IO and application. Signed-off-by Bo Yang<bo.yang@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
* [SCSI] megaraid_sas: report system PDs to OSYang, Bo2009-10-291-26/+65
| | | | | | | When OS issue inquiry, it will check driver's internal pd_list. Signed-off-by Bo Yang<bo.yang@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
* [SCSI] megaraid_sas: infrastructure to get PDs from FWYang, Bo2009-10-291-0/+96
| | | | | | | | Add system PDs to OS. Driver implemented the get_pd_list function to get the system PD from FW. Signed-off-by Bo Yang<bo.yang@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
* [SCSI] megaraid_sas: Add new megaraid SAS 2 controller support to the driverYang, Bo2009-10-291-5/+134
| | | | | | | | | Add the new megaraid sas 2 controller to the driver. megaraid sas2 is LSI next generation SAS products. driver add the interface to support this product. Signed-off-by Bo Yang<bo.yang@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
* [SCSI] megaraid_sas: add sysfs for AEN pollingYang, Bo2009-10-291-1/+23
| | | | | | | update the sysfs parameter to tell application driver support AEN poll Signed-off-by Bo Yang<bo.yang@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
* [SCSI] megaraid_sas: Add poll mechanism to megaraid sas driverYang, Bo2009-10-291-1/+44
| | | | | | | | Add Poll_wait mechanism to SAS-2 MegaRAID SAS Linux driver. Driver will wakeup poll after the driver get event from MegaRAID SAS FW. Signed-off-by Bo Yang<bo.yang@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
* [SCSI] megaraid_sas: tape drive support fixYang, Bo2009-10-291-0/+11
| | | | | | | | | Add the Tape drive fix to the megaraid_sas driver: If the command is for the tape device, set the FW pthru timeout to the os layer timeout value. Signed-off-by Bo Yang<bo.yang@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
* trivial: fix typo "to to" in multiple filesAnand Gadiyar2009-09-211-1/+1
| | | | | Signed-off-by: Anand Gadiyar <gadiyar@ti.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* dma-mapping: replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32)Yang Hongyang2009-04-071-2/+2
| | | | | | | | Replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32) Signed-off-by: Yang Hongyang<yanghy@cn.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* dma-mapping: replace all DMA_64BIT_MASK macro with DMA_BIT_MASK(64)Yang Hongyang2009-04-071-1/+1
| | | | | | | | Replace all DMA_64BIT_MASK macro with DMA_BIT_MASK(64) Signed-off-by: Yang Hongyang<yanghy@cn.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [SCSI] megaraid_sas: switch to block timeoutJames Bottomley2008-12-011-1/+2
| | | | | | | | | megaraid_sas sets the timeout in its slave configure routine for devices on special channels. This now needs to update the request queue timeout in block. Cc: "Yang, Bo" <Bo.Yang@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* saner FASYNC handling on file closeAl Viro2008-11-011-12/+0
| | | | | | | | | | | | | | As it is, all instances of ->release() for files that have ->fasync() need to remember to evict file from fasync lists; forgetting that creates a hole and we actually have a bunch that *does* forget. So let's keep our lives simple - let __fput() check FASYNC in file->f_flags and call ->fasync() there if it's been set. And lose that crap in ->release() instances - leaving it there is still valid, but we don't have to bother anymore. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* block: unify request timeout handlingJens Axboe2008-10-091-3/+3
| | | | | | | | | | | | | Right now SCSI and others do their own command timeout handling. Move those bits to the block layer. Instead of having a timer per command, we try to be a bit more clever and simply have one per-queue. This avoids the overhead of having to tear down and setup a timer for each command, so it will result in a lot less timer fiddling. Signed-off-by: Mike Anderson <andmike@linux.vnet.ibm.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* [SCSI] megaraid_sas: remove sysfs dbg_lvl world writeable permissionsJoe Malicki2008-08-161-1/+1
| | | | | | | | | | | | | | /sys/bus/pci/drivers/megaraid_sas/dbg_lvl defaults to being world-writable, which seems bad (letting any user affect kernel driver behavior and logging level). This turns off group and user write permissions, so that on typical production systems only root can write to it. [jejb: fix up rejections] Signed-off-by: Joseph Malicki <jmalicki@metacarta.com> Acked-by: "Yang, Bo" <Bo.Yang@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] megaraid_sas: add new controllers (0x78 0x79)Yang, Bo2008-08-161-2/+108
| | | | | | | | | | | Add the new controllers (0x78 0x79) support to the driver. Those controllers are LSI's next generation (gen2) SAS controllers. [akpm@linux-foundation.org: coding-style fixes] [akpm@linux-foundation.org: parenthesise a macro] Signed-off-by: Bo Yang <bo.yang@lsi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] megaraid_sas: add the shutdown DCMD cmd to driver shutdown routineYang, Bo2008-08-161-0/+1
| | | | | | | | | Add the shutdown DCMD cmd to driver shutdown routine to make megaraid sas FW shutdown proper. Signed-off-by: Bo Yang <bo.yang@lsi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] megaraid_sas: add readl to force PCI posting flushYang, Bo2008-08-161-0/+6
| | | | | | | | | | MegaRAID SAS Driver get unexpected Interrupt. Add the dummy readl to force PCI flush will fix this issue. Signed-off-by: Bo Yang <bo.yang@lsi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: Stable Tree <stable@kernel.org> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* Add a bunch of cycle_kernel_lock() callsJonathan Corbet2008-06-201-1/+2
| | | | | | | | | All of the open() functions which don't need the BKL on their face may still depend on its acquisition to serialize opens against driver initialization. So make those functions acquire then release the BKL to be on the safe side. Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* Add "no BKL needed" comments to several driversJonathan Corbet2008-06-201-0/+1
| | | | | | | | This documents the fact that somebody looked at the relevant open() functions and concluded that, due to their trivial nature, no locking was needed. Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* [SCSI] megaraid_sas: fix suspend/resume sectionsJiri Slaby2008-05-021-3/+8
| | | | | | | | | | | | megaraid_sas suspend and resume are inappropriatelly placed in __devinit section. Remove those placements and make the stuff dependent on CONFIG_PM. While at it, mark remove function as __devexit. Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Acked-by: "Yang, Bo" <Bo.Yang@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] megaraid_sas; Update the Version and Changelogbo yang2008-04-291-1/+1
| | | | | | | Update the Version and Changelog for megaraid_sas Driver Signed-off-by: Bo Yang<bo.yang@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] megaraid_sas: Add the new controller(1078DE) support to the driverbo yang2008-04-071-2/+5
| | | | | | | Add the new Controller (ID: 007C) support to driver. Signed-off-by Bo Yang<bo.yang@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] megaraid_sas: Fix the frame count calculationbo yang2008-04-071-10/+21
| | | | | | | | | When Driver sent wrong frame count to firmware. As this particular command is sent to drive, FW is seeing continuous chip resets and so the command will timeout. Signed-off-by Bo Yang<bo.yang@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] megaraid_sas: rollback the sense info implementationbo yang2008-04-071-6/+5
| | | | | | | | Sense buffer ptr data type in the ioctl path is reverted back to u32 * as in previous versions of driver. Signed-off-by Bo Yang<bo.yang@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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