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path: root/drivers/message/fusion/mptctl.c
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2023-10-10scsi: message: fusion: Replace deprecated strncpy() with strscpy_pad()Justin Stitt1-10/+9
strncpy() is deprecated for use on NUL-terminated destination strings [1] and as such we should prefer more robust and less ambiguous string interfaces. Since all these structs are copied out to userspace let's keep them NUL-padded by using strscpy_pad() which guarantees NUL-termination of the destination buffer while also providing the NUL-padding behavior that strncpy() has. Let's also opt to use the more idiomatic strscpy() usage of: 'dest, src, sizeof(dest)' in cases where the compiler can determine the size of the destination buffer. Do this for all cases of strscpy...() in this file. To be abundantly sure we don't leak stack data out to user space let's also change a strscpy() to strscpy_pad(). This strscpy() was introduced in commit dbe37c71d124 ("scsi: message: fusion: Replace all non-returning strlcpy() with strscpy()") Note that since we are creating these structs with a copy_from_user() and modifying fields and then copying back out to the user it is probably OK not to explicitly NUL-pad everything as any data leak is probably just data from the user themselves. If this is too eager, let's opt for strscpy() which is still in the spirit of removing deprecated strncpy() usage treewide. Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings [1] Link: https://github.com/KSPP/linux/issues/90 Cc: linux-hardening@vger.kernel.org Cc: Kees Cook <keescook@chromium.org> Signed-off-by: Justin Stitt <justinstitt@google.com> Link: https://lore.kernel.org/r/20230927-strncpy-drivers-message-fusion-mptctl-c-v1-1-bb2eddc1743c@google.com Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-06-01scsi: message: fusion: Replace all non-returning strlcpy() with strscpy()Azeem Shaikh1-1/+1
strlcpy() reads the entire source buffer first. This read may exceed the destination size limit. This is both inefficient and can lead to linear read overflows if a source string is not NUL-terminated [1]. In an effort to remove strlcpy() completely [2], replace strlcpy() here with strscpy(). No return values were used, so direct replacement is safe. [1] https://www.kernel.org/doc/html/latest/process/deprecated.html#strlcpy [2] https://github.com/KSPP/linux/issues/89 Signed-off-by: Azeem Shaikh <azeemshaikh38@gmail.com> Link: https://lore.kernel.org/r/20230530160248.411637-1-azeemshaikh38@gmail.com Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-11-08scsi: message: fusion: Remove variable 'where'Colin Ian King1-2/+0
Variable 'where' is just being incremented and it's never used anywhere else. Remove it. Signed-off-by: Colin Ian King <colin.i.king@gmail.com> Link: https://lore.kernel.org/r/20221031154538.870223-1-colin.i.king@gmail.com Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-09-01scsi: message: fusion: Remove redundant variable iocnumColin Ian King1-4/+2
Variable iocnum is assigned a value that is never read, the assignment and hence the variable are redundant can be removed. Also update the comment to reflect the correct name of the variable being updated. Cleans up clang-scan warning: drivers/message/fusion/mptctl.c:641:8: warning: Although the value stored to 'iocnum' is used in the enclosing expression, the value is never actually read from 'iocnum' [deadcode.DeadStores] Link: https://lore.kernel.org/r/20220805113214.2339022-1-colin.i.king@gmail.com Signed-off-by: Colin Ian King <colin.i.king@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-26scsi: message: fusion: Remove unused variable retvalAlexander Vorwerk1-3/+0
The following warning showed up when compiling with W=1. drivers/message/fusion/mptctl.c: In function ‘mptctl_hp_hostinfo’: drivers/message/fusion/mptctl.c:2337:8: warning: variable ‘retval’ set but not used [-Wunused-but-set-variable] int retval; Fixing by removing the variable. Link: https://lore.kernel.org/r/20220317030325.30526-1-alexander.vorwerk@stud.uni-goettingen.de Signed-off-by: Alexander Vorwerk <alexander.vorwerk@stud.uni-goettingen.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-01-10scsi: message: fusion: mptctl: Use dma_alloc_coherent()Christophe JAILLET1-12/+19
In [1], Christoph Hellwig has proposed to remove the wrappers in include/linux/pci-dma-compat.h. Some reasons why this API should be removed have been given by Julia Lawall in [2]. When memory is allocated in kbuf_alloc_2_sgl() GFP_KERNEL can be used because this function already uses the GFP_USER flag for some memory allocation and not spin_lock is taken in the between. When memory is allocated in mptctl_do_mpt_command() GFP_KERNEL can be used because this function already uses copy_from_user() and this function can sleep. When memory is allocated in mptctl_hp_hostinfo() GFP_KERNEL can be used because this function already uses mpt_config() and this function has an explicit might_sleep(). When memory is allocated in mptctl_hp_targetinfo() GFP_KERNEL can be used because this function already uses mpt_config() and this function has an explicit might_sleep(). [1]: https://lore.kernel.org/kernel-janitors/20200421081257.GA131897@infradead.org/ [2]: https://lore.kernel.org/kernel-janitors/alpine.DEB.2.22.394.2007120902170.2424@hadrien/ Link: https://lore.kernel.org/r/516375d6d06114484533baf03aae351306100246.1641500561.git.christophe.jaillet@wanadoo.fr Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-01-10scsi: message: fusion: Remove usage of the deprecated "pci-dma-compat.h" APIChristophe JAILLET1-21/+30
In [1], Christoph Hellwig has proposed to remove the wrappers in include/linux/pci-dma-compat.h. Some reasons why this API should be removed have been given by Julia Lawall in [2]. A coccinelle script has been used to perform the needed transformation. It can be found in [3]. In this patch, all functions but pci_alloc_consistent() are handled. pci_alloc_consistent() needs more attention and explanation. [1]: https://lore.kernel.org/kernel-janitors/20200421081257.GA131897@infradead.org/ [2]: https://lore.kernel.org/kernel-janitors/alpine.DEB.2.22.394.2007120902170.2424@hadrien/ [3]: https://lore.kernel.org/kernel-janitors/20200716192821.321233-1-christophe.jaillet@wanadoo.fr/ Link: https://lore.kernel.org/r/e38e897fbd3314718315b0e357c824e3f01775d6.1641500561.git.christophe.jaillet@wanadoo.fr Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-10-13scsi: message: fusion: Remove unused mpt_pci driver .probe() 'id' parameterUwe Kleine-König1-2/+2
The only two drivers don't make use of the id parameter, so drop it. This is a step toward removing pci_dev->driver. Link: https://lore.kernel.org/r/20211004125935.2300113-9-u.kleine-koenig@pengutronix.de Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Acked-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-13scsi: message: fusion: Remove unused local variable 'port'Zhen Lei1-6/+0
Fixes the following W=1 kernel build warning: drivers/message/fusion/mptctl.c: In function ‘mptctl_gettargetinfo drivers/message/fusion/mptctl.c:1372:7: warning: variable ‘port’ set but not used [-Wunused-but-set-variable] Link: https://lore.kernel.org/r/20210408061851.3089-3-thunder.leizhen@huawei.com Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-13scsi: message: fusion: Remove unused local variable 'time_count'Zhen Lei1-2/+0
Fixes the following W=1 kernel build warning: drivers/message/fusion/mptctl.c: In function ‘mptctl_do_taskmgmt: drivers/message/fusion/mptctl.c:324:17: warning: variable ‘time_count’ set but not used [-Wunused-but-set-variable] Link: https://lore.kernel.org/r/20210408061851.3089-2-thunder.leizhen@huawei.com Fixes: 7d757f185540 ("[SCSI] mptfusion: Updated SCSI IO IOCTL error handling.") Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-08-21scsi: mptctl: Remove unneeded cast from memory allocationLi Heng1-3/+2
Remove casting the values returned by memory allocation function. Coccinelle emits WARNING: ./drivers/message/fusion/mptctl.c:2596:14-31: WARNING: casting value returned by memory allocation function to (SCSIDevicePage0_t *) is useless. ./drivers/message/fusion/mptctl.c:2660:15-32: WARNING: casting value returned by memory allocation function to (SCSIDevicePage3_t *) is useless. Link: https://lore.kernel.org/r/1596014390-18605-1-git-send-email-liheng40@huawei.com Signed-off-by: Li Heng <liheng40@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-01-16scsi: mptfusion: Fix double fetch bug in ioctlDan Carpenter1-163/+50
Tom Hatskevich reported that we look up "iocp" then, in the called functions we do a second copy_from_user() and look it up again. The problem that could cause is: drivers/message/fusion/mptctl.c 674 /* All of these commands require an interrupt or 675 * are unknown/illegal. 676 */ 677 if ((ret = mptctl_syscall_down(iocp, nonblock)) != 0) ^^^^ We take this lock. 678 return ret; 679 680 if (cmd == MPTFWDOWNLOAD) 681 ret = mptctl_fw_download(arg); ^^^ Then the user memory changes and we look up "iocp" again but a different one so now we are holding the incorrect lock and have a race condition. 682 else if (cmd == MPTCOMMAND) 683 ret = mptctl_mpt_command(arg); The security impact of this bug is not as bad as it could have been because these operations are all privileged and root already has enormous destructive power. But it's still worth fixing. This patch passes the "iocp" pointer to the functions to avoid the second lookup. That deletes 100 lines of code from the driver so it's a nice clean up as well. Link: https://lore.kernel.org/r/20200114123414.GA7957@kadam Reported-by: Tom Hatskevich <tom2001tom.23@gmail.com> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-03-20scsi: mptfusion: fix indentation issuesColin Ian King1-1/+1
There are several statements and code blocks there are incorrectly indented. Fix these. Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-07-31scsi: mptctl: change strncpy+truncation to strlcpyDominique Martinet1-2/+2
Generated by scripts/coccinelle/misc/strncpy_truncation.cocci Signed-off-by: Dominique Martinet <asmadeus@codewreck.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-01-31scsi: mptfusion: Add bounds check in mptctl_hp_targetinfo()Dan Carpenter1-0/+2
My static checker complains about an out of bounds read: drivers/message/fusion/mptctl.c:2786 mptctl_hp_targetinfo() error: buffer overflow 'hd->sel_timeout' 255 <= u32max. It's true that we probably should have a bounds check here. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-01-17scsi: mptfusion: Use snprintf() instead of open coded divisionsAndy Shevchenko1-18/+7
Numbers up to 100 snprintf() prints without using a division. Besides that the code looks more readable. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-12-24Replace <asm/uaccess.h> with <linux/uaccess.h> globallyLinus Torvalds1-1/+1
This was entirely automated, using the script by Al: PATT='^[[:blank:]]*#[[:blank:]]*include[[:blank:]]*<asm/uaccess.h>' sed -i -e "s!$PATT!#include <linux/uaccess.h>!" \ $(git grep -l "$PATT"|grep -v ^include/linux/uaccess.h) to do the replacement at the end of the merge window. Requested-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-11-12mptfusion: don't allow negative bytes in kbuf_alloc_2_sgl()Dan Carpenter1-0/+4
There is a static checker warning here because "bytes" is controlled by the user and we cap the upper bound with min() but allow negatives. Negative bytes will result in some nasty warning messages but are not super harmful. Anyway, no one needs negative bytes so let's just check for it and return NULL. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2015-08-26mptfusion: prevent some memory corruptionDan Carpenter1-0/+9
These are signed values the come from the user, we put a cap on the upper bounds but not on the lower bounds. We use "karg.dataSgeOffset" to calculate "sz". We verify "sz" and proceed as if that means that "karg.dataSgeOffset" is correct but this fails to consider that the "sz" calculations can have integer overflows. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2014-09-16mptfusion: simplify roundingRasmus Villemoes1-6/+1
Rounding up to a multiple of 4 should be done using the ALIGN macro. As a bonus, this also makes the generated code smaller. In GetIocFacts(), sz is assigned to a few lines below without being read in the meantime, so it is ok that it doesn't end up with the same value as facts->FWImageSize. Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Reviewed-by: Joe Lawrence <joe.lawrence@stratus.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-07-26mptfusion: use memdup_userJoe Lawrence1-13/+5
Let memdup_user handle the kmalloc, copy_from_user and error checking kfree code. Spotted by the following smatch (false positive) warning: drivers/message/fusion/mptctl.c:1369 mptctl_getiocinfo() warn: possible info leak 'karg' Signed-off-by: Joe Lawrence <joe.lawrence@stratus.com> Acked-by: Sreekanth Reddy <Sreekanth.Reddy@avagotech.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-05-28mptfusion: fix msgContext in mptctl_hp_hostinfoTomas Henzl1-3/+3
Hi, without this patch the istwiRWRequest->MsgContext is always set to zero, this patch saves the MsgContext in a msgcontext variable and then restores the value. Thanks to David Jeffery who found the issue and did the analysis. Signed-off-by: Tomas Henzl <thenzl@redhat.com> Acked-by: Desai, Kashyap <Kashyap.Desai@lsi.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
2013-04-29mptctl: don't wank with fasync in ->release()Al Viro1-8/+0
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-06-01drivers/message/fusion: use pci_dev->revisionSergei Shtylyov1-3/+1
This driver uses PCI_CLASS_REVISION instead of PCI_REVISION_ID, so it wasn't converted by 44c10138fd4bbc ("PCI: Change all drivers to use pci_device->revision"). In one case, it even reads PCI revision ID without using it -- that code is now removed... Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Acked-by: "Nandigama, Nagalakshmi" <Nagalakshmi.Nandigama@lsi.com> Cc: Eric Moore <eric.moore@lsi.com> Acked-by: Auke Kok <auke-jan.h.kok@intel.com> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-03-31Fix common misspellingsLucas De Marchi1-2/+2
Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
2011-03-18Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6Linus Torvalds1-1/+3
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (170 commits) [SCSI] scsi_dh_rdac: Add MD36xxf into device list [SCSI] scsi_debug: add consecutive medium errors [SCSI] libsas: fix ata list corruption issue [SCSI] hpsa: export resettable host attribute [SCSI] hpsa: move device attributes to avoid forward declarations [SCSI] scsi_debug: Logical Block Provisioning (SBC3r26) [SCSI] sd: Logical Block Provisioning update [SCSI] Include protection operation in SCSI command trace [SCSI] hpsa: fix incorrect PCI IDs and add two new ones (2nd try) [SCSI] target: Fix volume size misreporting for volumes > 2TB [SCSI] bnx2fc: Broadcom FCoE offload driver [SCSI] fcoe: fix broken fcoe interface reset [SCSI] fcoe: precedence bug in fcoe_filter_frames() [SCSI] libfcoe: Remove stale fcoe-netdev entries [SCSI] libfcoe: Move FCOE_MTU definition from fcoe.h to libfcoe.h [SCSI] libfc: introduce __fc_fill_fc_hdr that accepts fc_hdr as an argument [SCSI] fcoe, libfc: initialize EM anchors list and then update npiv EMs [SCSI] Revert "[SCSI] libfc: fix exchange being deleted when the abort itself is timed out" [SCSI] libfc: Fixing a memory leak when destroying an interface [SCSI] megaraid_sas: Version and Changelog update ... Fix up trivial conflicts due to whitespace differences in drivers/scsi/libsas/{sas_ata.c,sas_scsi_host.c}
2011-02-12[SCSI] mptfusion: mptctl_release is required in mptctl.cKashyap, Desai1-0/+8
Added missing release callback for file_operations mptctl_fops. Without release callback there will be never freed. It remains on mptctl's eent list even after the file is closed and released. Relavent RHEL bugzilla is 660871 Cc: stable@kernel.org Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-01-24[SCSI] mptfusion: Fix memory leak in mptctl_getiocinfo()Jesper Juhl1-1/+3
A 'kfree(karg)' is missing in a failure path in mptctl.c::mptctl_getiocinfo() which can cause a memory leak. Signed-off-by: Jesper Juhl <jj@chaosbits.net> Acked-by: "Desai, Kashyap" <Kashyap.Desai@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-09-15scsi: autoconvert trivial BKL users to private mutexArnd Bergmann1-7/+8
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>
2010-07-28[SCSI] mptfusion: Extra debug prints added relavent to Device missing delay ↵Kashyap, Desai1-2/+4
error handling Adding function name in original debug prints and few more debug prints are added. Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com> Cc: Stable Tree <stable@kernel.org> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-07-27[SCSI] mptfusion: print Doorbell register in a case of hard reset and timeoutKei Tokunaga1-4/+14
Printing Doorbell register in a case of hard reset and timeout should be useful for figuring out the state of the system. Signed-off-by: Kei Tokunaga <tokunaga.keiich@jp.fujitsu.com> Acked-by: "Desai, Kashyap" <Kashyap.Desai@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-07-27[SCSI] mptfusion: schedule_target_reset from all Reset contextKashyap, Desai1-3/+11
Issue: target reset will be queued to driver's internal queue to get schedule later. When driver add target into internal target_reset queue we will block IOs on those target using scsi midlayer API. Now due to some cause driver is not executing those target_reset list and it is always in block state. Changes: now we are clearing target_reset queue from all other Callback context instead of only DeviceReset context.Now wherever driver is clearing taskmgmt_in_progress flag it is considering target_reset queue cleanup also. Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-04-11[SCSI] mptfusion: sanity check for vdevice pointer is addedKashyap, Desai1-0/+7
Added sanity checks before accessing vdevice and added vdevice->deleted setting for mptfc. Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-04-11[SCSI] mptfusion: Updated SCSI IO IOCTL error handling.Kashyap, Desai1-75/+86
Behavior changes only for IOCTLs that time out. Current behavior of Bus Reset remains the same for RAID Passthru Timeouts Current behavior of Diagnostic reset for any other type of IOCTL remains the same CHANGE: For IOCTL SCSI IOs that timeout, a Target Reset TM is sent, instead of Bus Reset. All error handing from that point is the same as what the driver currently does, which is to say that if the Device Reset TM fails it escalates do diagnostic reset. Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-04-11[SCSI] mptfusion: Added new less expensive RESET (Message Unit Reset)Kashyap, Desai1-1/+1
Message Unit Reset - instructs the IOC to reset the Reply Post and Free FIFO's. All the Message Frames on Reply Free FIFO are discarded. All posted buffers are freed, and event notification is turned off. IOC doesnt reply to any outstanding request. This will transfer IOC to READY state. Message unit ready is less expensive operations than Hard Reset. soft reset will not force Firmware to reload again, it only do clean up of Message units. mpt_Soft_Hard_ResetHandler will first try for Soft Reset,if it fails then go for big hammer reset which is Hard Reset. Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-04-11[SCSI] mpt: modify mptctl_exit() to call proper deregister functionsKei Tokunaga1-1/+12
This patch fixes some issues of mptctl_exit(). 1) It doesn't call mpt_deregister() for mptctl_taskmgmt_id => Insmoding/rmmoding mptctl.ko repeadtedly (up to MPT_MAX_PROTOCOL_DRIVERS-1 at most) can eat up all cb_idx, and that would cause a lack of MptCallbacks[], MptDriverClass[], and MptEvHandlers[]. 2) It doesn't call mpt_event_deregister() for mptctl_id => Need to call it. 3) It calls mpt_reset_deregister() for mptctl_taskmgmt_id => This could accidentally deregister an innocent reset handler that you don't want to. This patch also adds a check for mptctl_taskmgmt_id. Signed-off-by: Kei Tokunaga <tokunaga.keiich@jp.fujitsu.com> Acked-by: "Desai, Kashyap" <Kashyap.Desai@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-01-18[SCSI] mptfusion: corrected if condition check for SCSIIO and PASSTHROUGH ↵Kashyap, Desai1-2/+2
commands Modified the function type check to verify it is not MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH or MPI_FUNCTION_SCSI_IO_REQUEST. Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-10-29[SCSI] mptctl : Remove printk which floods unnecessary messages to ↵Kashyap, Desai1-4/+1
var/log/message Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-06-10[SCSI] mpt fusion: Code Cleanup patchKashyap, Desai1-3/+3
Resending patch considering Grants G's code review. Main goal to submit this patch is code cleaup. 1. Better driver debug prints and code indentation. 2. fault_reset_work_lock is not used anywhere. driver is using taskmgmt_lock instead of fault_reset_work_lock. 3. setting pci_set_drvdata properly. 4. Ingore config request when IOC is in reset state.( ioc_reset_in_progress is set). 5. Init/clear managment frame proprely.(INITIALIZE_MGMT_STATUS and CLEAR_MGMT_STATUS) Signed-off-by: Kashyap Desai <kadesai@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-06-10[SCSI] mpt fusion: rewrite of ioctl_cmds internal generated functionKashyap, Desai1-293/+357
1) rewrite of ioctl_cmds internal generated function that issue commands to firmware, porting them to be single threaded using the generic MPT_MGMT struct. All wait Queues are replace by completion Queue. 2) added seperate callback handler for ioctl task managment (mptctl_taskmgmt_reply), to handle command that timeout 3) rewrite mptctl_bus_reset Signed-off-by: Kashyap Desai <kadesai@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-06-10[SCSI] mpt fusion: config path optimized, completion queue is usedKashyap, Desai1-15/+16
1) Previously we had mutliple #defines to use same values. Now those #defines are optimized. MPT_IOCTL_STATUS_* is removed and MPT_MGMT_STATUS_* are new #defines. 2.) config path is optimized. Instead of wait Queue and timer, using completion Q. 3.) mpt_timer_expired is not used. [jejb: elide patch to eliminate mpt_timer_expired] Signed-off-by: Kashyap Desai <kadesai@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-06-10[SCSI] mpt fusion: Fixing 1078 data corruption issue for 36GB memory regionKashyap, Desai1-18/+19
The reason for this change is there is a data corruption when four different physical memory regions in the 36GB to 37GB region are accessed. This is only affecting 1078. The solution is we need to use different addressing when filling in the scatter gather table for the effected memory regions. So instead of snooping on all four different memory holes, we treat any physical addresses in the 36GB address with the same algorithm. The fix is explained below 1) Ensure that the message frames are NOT located in the trouble region. There is no remapping available for message frames, they must be allocated outside the problem region. 2) Ensure that Sense buffers are NOT in the trouble region. There is no remapping available. 3) Walk through the SGE entries and if any are inside the trouble region then they need to be remapped as discussed below. 1) Set the Local Address bit in the SGE Flags field. MPI_SGE_FLAGS_LOCAL_ADDRESS 2) Ensure we are using 64-bit SGEs 3) Set MSb (Bit 63) of the 64-bit address, this will indicate buffer location is Host Memory. Signed-off-by: Kashyap Desai <kadesai@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-01-02[SCSI] fusion: Move a dereference below a NULL testJulia Lawall1-2/+3
If the NULL test is necessary, then the dereference should be moved below the NULL test. The semantic patch that makes this change is as follows: (http://www.emn.fr/x-info/coccinelle/). // <smpl> @disable is_null@ identifier f; expression E; identifier fld; statement S; @@ + if (E == NULL) S f(...,E->fld,...); - if (E == NULL) S @@ identifier f; expression E; identifier fld; statement S; @@ + if (!E) S f(...,E->fld,...); - if (!E) S // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Acked-by: "Prakash, Sathya" <Sathya.Prakash@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-11-01saner FASYNC handling on file closeAl Viro1-7/+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>
2008-07-27[SCSI] replace __FUNCTION__ with __func__Harvey Harrison1-2/+2
[jejb: fixed up a ton of missed conversions. All of you are on notice this has happened, driver trees will now need to be rebased] Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Cc: SCSI List <linux-scsi@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-07-16Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6Linus Torvalds1-2/+2
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (102 commits) [SCSI] scsi_dh: fix kconfig related build errors [SCSI] sym53c8xx: Fix bogus sym_que_entry re-implementation of container_of [SCSI] scsi_cmnd.h: remove double inclusion of linux/blkdev.h [SCSI] make struct scsi_{host,target}_type static [SCSI] fix locking in host use of blk_plug_device() [SCSI] zfcp: Cleanup external header file [SCSI] zfcp: Cleanup code in zfcp_erp.c [SCSI] zfcp: zfcp_fsf cleanup. [SCSI] zfcp: consolidate sysfs things into one file. [SCSI] zfcp: Cleanup of code in zfcp_aux.c [SCSI] zfcp: Cleanup of code in zfcp_scsi.c [SCSI] zfcp: Move status accessors from zfcp to SCSI include file. [SCSI] zfcp: Small QDIO cleanups [SCSI] zfcp: Adapter reopen for large number of unsolicited status [SCSI] zfcp: Fix error checking for ELS ADISC requests [SCSI] zfcp: wait until adapter is finished with ERP during auto-port [SCSI] ibmvfc: IBM Power Virtual Fibre Channel Adapter Client Driver [SCSI] sg: Add target reset support [SCSI] lib: Add support for the T10 (SCSI) Data Integrity Field CRC [SCSI] sd: Move scsi_disk() accessor function to sd.h ...
2008-07-03mpt: fasync BKL pushdownJonathan Corbet1-1/+5
It looks like this driver really needs the BKL here. Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2008-06-05[SCSI] mpt fusion : Updated copyright statment with 2008 includedPrakash, Sathya1-2/+2
Updating copyright statement to include the year 2008 Signed-off-by: Sathya Prakash <sathya.prakash@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03drivers/message/: Spelling fixesJoe Perches1-4/+4
Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Adrian Bunk <bunk@kernel.org>
2007-10-12[SCSI] mptctl : shutup uninitialized variable warningsEric Moore1-5/+3
drivers/message/fusion/mptctl.c: In function ‘mptctl_mpt_command’: drivers/message/fusion/mptctl.c:1764: warning: ‘bufIn.len’ may be used uninitialized in this function drivers/message/fusion/mptctl.c:1765: warning: ‘bufOut.len’ may be used uninitialized in this function come because gcc gets confused by some "goto" statements in above function. The warnings have been verified to be bogus, however, the function does initialize these later (after the offending goto's) in the function anyway. So let's move those initializations to top of function, thereby also shutting up these warnings. Signed-off-by: Eric Moore <Eric.Moore@lsi.com> Signed-off-by: Satyam Sharma <satyam@infradead.org> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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