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2014-09-16mpt3sas, mpt2sas: fix scsi_add_host error handling problems in _scsih_probeSreekanth Reddy1-3/+6
In _scsih_probe, propagate the return value from scsi_add_host. In mpt3sas, avoid calling list_del twice if that returns an error, which causes list_del corruption warnings if an error is returned. Tested with blk-mq and scsi-mq patches to properly cleanup from and propagate blk_mq_init_rq_map errors. Signed-off-by: Robert Elliott <elliott@hp.com> Acked-by: Sreekanth Reddy <Sreekanth.Reddy@avagotech.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-09-16mpt3sas: Bump mpt3sas driver version to 04.100.00.00Sreekanth Reddy1-2/+2
Bump mpt3sas driver version to 04.100.00.00. Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@avagotech.com> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-09-16mpt3sas: Added Reply Descriptor Post Queue (RDPQ) Array supportSreekanth Reddy2-61/+191
Up to now, Driver allocates a single contiguous block of memory pool for all reply queues and passes down a single address in the ReplyDescriptorPostQueueAddress field of the IOC Init Request Message to the firmware. When firmware receives this address, it will program each of the Reply Descriptor Post Queue registers, as each reply queue has its own register. Thus the firmware, starting from a base address it determines the starting address of the subsequent reply queues through some simple arithmetic calculations. The size of this contiguous block of memory pool is directly proportional to number of MSI-X vectors and the HBA queue depth. For example higher MSIX vectors requires larger contiguous block of memory pool. But some of the OS kernels are unable to allocate this larger contiguous block of memory pool. So, the proposal is to allocate memory independently for each Reply Queue and pass down all of the addresses to the firmware. Then the firmware will just take each address and program the value into the correct register. When HBAs with older firmware(i.e. without RDPQ capability) is used with this new driver then the max_msix_vectors value would be set to 8 by default. Change set in v1: 1. Declared the _base_get_ioc_facts() functions at the beginning of the mpt3sas_base.c file instead of moving all these functions before mpt3sas_base_map_resources() function a. _base_wait_for_doorbell_int() b. _base_wait_for_doorbell_ack() c. _base_wait_for_doorbell_not_used() d. _base_handshake_req_reply_wait() e. _base_get_ioc_facts() 2. Initially set the consistent DMA mask to 32 bit and then change it to 64 bit mask after allocating RDPQ pools by calling the function _base_change_consistent_dma_mask. This is to ensure that all the upper 32 bits of RDPQ entries's base address to be same. 3. Reduced the redundancy between the RDPQ and non-RDPQ support in these following functions a. _base_release_memory_pools() b. _base_allocate_memory_pools() c. _base_send_ioc_init() d. _base_make_ioc_operational() Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@avagotech.com> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-09-16mpt3sas: Added OEM branding StringsSreekanth Reddy2-0/+67
Added following branding Strings for Intel custom HBAs support. Driver String: Vendor ID Device ID SubSystemVendor ID SubSystemDevice ID Intel(R) Integrated RAID Module RMS3JC080 0x1000 0x0097 0x8086 0x3521 Intel(R) RAID Controller RS3GC008 0x1000 0x0097 0x8086 0x3522 Intel(R) RAID Controller RS3FC044 0x1000 0x0097 0x8086 0x3523 Intel(R) RAID Controller RS3UC080 0x1000 0x0097 0x8086 0x3524 Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@avagotech.com> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-09-16mpt3sas: Copyright in driver sources is updated for year the 2014.Sreekanth Reddy19-19/+19
Copyright in driver sources is updated for year the 2014. Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@avagotech.com> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-09-16mpt3sas: MPI2.5 Rev H (2.5.3) specificationsSreekanth Reddy4-7/+114
Below is the change set in MPI2.5 Rev H specification and 2.00.32 header files 1) Added reserved fields to IO Unit Page 7 for future use. 2) Added optional functionality to IOCInit Request so that the host may specify a separate base address for each Reply Descriptor Post Queue. IOC support for this is indicated using a new IOCCapabilities bit in the IOCFacts Reply. 3) Added Toolbox Console Text Display Tool The host uses the Console Text Display Tool to send a string to IOC's Console using different console types (eg: UART serial terminal or Ethernet terminal). 4) Firmware images can now be signed using an encrypted hash. 5) Added MPI2_SAS_OP_TRANSMIT_PORT_SELECT_SIGNAL 6) Added more details about configuration page restrictions when Host Based Discovery is enabled Enabling host based discovery affects the availability of some configuration pages and events. The SAS Expander, SAS Device, and SAS Enclosure configuration pages are not available from the IOC. The IOC returns an error status to any Configuration Request message attempting to access these pages. The IOC does not send the SAS Discovery Event, the SAS Topology Change List Event, or the SAS Enclosure Device Status Change Event when host based discovery is enabled. 7) Bit 13 of the SAS IO Unit Page 1 ControlFlags field is now obsolete. It was used to enable limiting direct attached SATA maximum link rate to 1.5 Gbps. Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@avagotech.com> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-09-16mpt3sas: Bump mpt3sas driver version to 03.100.00.00Sreekanth Reddy1-2/+2
Bump mpt3sas driver version to 03.100.00.00. Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@avagotech.com> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-09-16mpt3sas: Clear PFA Status on SGPIO when PFA Drive is Removed or ReplacedSreekanth Reddy2-11/+61
Added code to send an SEP message that turns off the Predictive Failure LED when a drive is removed (if Predictive Failure LED was turned on). Added a new flag 'pfa_led_on' per device that tracks the status of Predictive Failure LED. When the drive is removed, this flag is checked and sends an SEP message to turn off the respective Predictive Failure LED. Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@avagotech.com> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-09-16mpt3sas: MPI2.5 Rev G (2.5.2) specificationsSreekanth Reddy4-7/+19
Below is the change set in MPI2.5 Rev G specification and 2.00.31 header files 1) Added SCSIStatusQualifier to SCSI IO Error Reply message. 2) Added ATA Security Freeze Lock to IO Unit Page 1 Flags field. 3) Added Allow Protection Information bit for IR Volume Create. Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@avagotech.com> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-09-16mpt3sas: Use pci_enable_msix_exact() instead of pci_enable_msix()Alexander Gordeev1-2/+2
As result of deprecation of MSI-X/MSI enablement functions pci_enable_msix() and pci_enable_msi_block() all drivers using these two interfaces need to be updated to use the new pci_enable_msi_range() or pci_enable_msi_exact() and pci_enable_msix_range() or pci_enable_msix_exact() interfaces. Signed-off-by: Alexander Gordeev <agordeev@redhat.com> Reviewed-by: Tomas Henzl <thenzl@redhat.com> Cc: Nagalakshmi Nandigama <Nagalakshmi.Nandigama@lsi.com> Cc: Sreekanth Reddy <Sreekanth.Reddy@lsi.com> Cc: support@lsi.com Cc: DL-MPTFusionLinux@lsi.com Cc: linux-scsi@vger.kernel.org Cc: linux-pci@vger.kernel.org Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-08-12PCI: Remove DEFINE_PCI_DEVICE_TABLE macro useBenoit Taine1-1/+1
We should prefer `struct pci_device_id` over `DEFINE_PCI_DEVICE_TABLE` to meet kernel coding style guidelines. This issue was reported by checkpatch. A simplified version of the semantic patch that makes this change is as follows (http://coccinelle.lip6.fr/): // <smpl> @@ identifier i; declarer name DEFINE_PCI_DEVICE_TABLE; initializer z; @@ - DEFINE_PCI_DEVICE_TABLE(i) + const struct pci_device_id i[] = z; // </smpl> [bhelgaas: add semantic patch] Signed-off-by: Benoit Taine <benoit.taine@lip6.fr> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2014-07-25mpt3sas: delay scsi_add_host call to work with scsi-mqReddy, Sreekanth2-15/+13
In _scsih_probe, delay the call to scsi_add_host until the host has been fully set up. Otherwise, the default .can_queue value of 1 causes scsi-mq to set the block layer request queue size to its minimum size, resulting in awful performance. In _scsih_probe error handling, call mpt3sas_base_detach rather than scsi_remove_host to properly clean up in reverse order. In _scsih_remove, call scsi_remove_host earlier to clean up in reverse order. Signed-off-by: Robert Elliott <elliott@hp.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nagalakshmi Nandigama <Nagalakshmi.Nandigama@avagotech.com> Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@avagotech.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-07-25mpt3sas: Rework the MSI-X grouping codeMartin K. Petersen1-52/+21
On systems with a non power-of-two CPU count the existing MSI-X grouping code failed to distribute interrupts correctly. Rework the code to handle arbitrary processor counts. Also remove the hardcoded upper limit on the number of processors so we can boot on large systems. Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Acked-by: Sreekanth Reddy <Sreekanth.reddy@avagotech.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-07-25mpt3sas: combine fw_event_work and its event_dataJoe Lawrence1-25/+31
Tack the firmware reply event_data payload to the end of its corresponding struct fw_event_work allocation. This matches the convention in the mptfusion driver and simplifies the code. This avoids the following smatch warning: drivers/scsi/mpt3sas/mpt3sas_scsih.c:2519 mpt3sas_send_trigger_data_event() warn: possible memory leak of 'fw_event' 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>
2014-07-25mpt3sas: correct scsi_{target,device} hostdata allocationJoe Lawrence1-2/+4
In _scsih_{slave,target}_alloc, an incorrect structure type is passed to sizeof() when allocating storage for hostdata. Luckily larger structure types were used, so at least the wrong sizes were safe: struct scsi_device (1784 bytes) > struct MPT3SAS_DEVICE (24 bytes) struct scsi_target (760 bytes) > struct MPT3SAS_TARGET (32 bytes) This fixes the following smatch warnings: drivers/scsi/mpt3sas/mpt3sas_scsih.c:1166 _scsih_target_alloc() warn: struct type mismatch 'MPT3SAS_TARGET vs scsi_target' drivers/scsi/mpt3sas/mpt3sas_scsih.c:1280 _scsih_slave_alloc() warn: struct type mismatch 'MPT3SAS_DEVICE vs scsi_device' 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>
2014-07-17scsi: use 64-bit value for 'max_luns'Hannes Reinecke1-2/+2
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>
2014-05-28mpt3sas: Remove use of DEF_SCSI_QCMDMatthew Wilcox1-6/+3
Removing the host_lock from the I/O submission path gives a huge scalability improvement. Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com> Reviewed-by: Nicholas Bellinger <nab@linux-iscsi.org> Reviewed-by: Praveen Krishnamoorthy <Praveen.krishnamoorthy@lsi.com> Acked-by: Sreekanth Reddy <Sreekanth.reddy@lsi.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-05-28mpt3sas: Remove uses of serial_numberMatthew Wilcox3-11/+8
The mpt3sas_scsih_issue_tm() function does not use the 'serial_number' argument passed to it. Removing it removes the last vestiges of the scsi_cmnd's serial_number field from this driver. Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com> Reviewed-by: Nicholas Bellinger <nab@linux-iscsi.org> Reviewed-by: Praveen Krishnamoorthy <Praveen.krishnamoorthy@lsi.com> Acked-by: Sreekanth Reddy <Sreekanth.reddy@lsi.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-01-30Merge branch 'for-3.14/core' of git://git.kernel.dk/linux-blockLinus Torvalds1-19/+20
Pull core block IO changes from Jens Axboe: "The major piece in here is the immutable bio_ve series from Kent, the rest is fairly minor. It was supposed to go in last round, but various issues pushed it to this release instead. The pull request contains: - Various smaller blk-mq fixes from different folks. Nothing major here, just minor fixes and cleanups. - Fix for a memory leak in the error path in the block ioctl code from Christian Engelmayer. - Header export fix from CaiZhiyong. - Finally the immutable biovec changes from Kent Overstreet. This enables some nice future work on making arbitrarily sized bios possible, and splitting more efficient. Related fixes to immutable bio_vecs: - dm-cache immutable fixup from Mike Snitzer. - btrfs immutable fixup from Muthu Kumar. - bio-integrity fix from Nic Bellinger, which is also going to stable" * 'for-3.14/core' of git://git.kernel.dk/linux-block: (44 commits) xtensa: fixup simdisk driver to work with immutable bio_vecs block/blk-mq-cpu.c: use hotcpu_notifier() blk-mq: for_each_* macro correctness block: Fix memory leak in rw_copy_check_uvector() handling bio-integrity: Fix bio_integrity_verify segment start bug block: remove unrelated header files and export symbol blk-mq: uses page->list incorrectly blk-mq: use __smp_call_function_single directly btrfs: fix missing increment of bi_remaining Revert "block: Warn and free bio if bi_end_io is not set" block: Warn and free bio if bi_end_io is not set blk-mq: fix initializing request's start time block: blk-mq: don't export blk_mq_free_queue() block: blk-mq: make blk_sync_queue support mq block: blk-mq: support draining mq queue dm cache: increment bi_remaining when bi_end_io is restored block: fixup for generic bio chaining block: Really silence spurious compiler warnings block: Silence spurious compiler warnings block: Kill bio_pair_split() ...
2014-01-14MPT / PCI: Use pci_stop_and_remove_bus_device_locked()Rafael J. Wysocki1-1/+1
Race conditions are theoretically possible between the MPT PCI device removal and the generic PCI bus rescan and device removal that can be triggered via sysfs. To avoid those race conditions make the MPT PCI code use pci_stop_and_remove_bus_device_locked(). Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2013-11-23block: Kill bio_segments()/bi_vcnt usageKent Overstreet1-4/+4
When we start sharing biovecs, keeping bi_vcnt accurate for splits is going to be error prone - and unnecessary, if we refactor some code. So bio_segments() has to go - but most of the existing users just needed to know if the bio had multiple segments, which is easier - add a bio_multiple_segments() for them. (Two of the current uses of bio_segments() are going to go away in a couple patches, but the current implementation of bio_segments() is unsafe as soon as we start doing driver conversions for immutable biovecs - so implement a dumb version for bisectability, it'll go away in a couple patches) Signed-off-by: Kent Overstreet <kmo@daterainc.com> Cc: Jens Axboe <axboe@kernel.dk> Cc: Neil Brown <neilb@suse.de> Cc: Nagalakshmi Nandigama <Nagalakshmi.Nandigama@lsi.com> Cc: Sreekanth Reddy <Sreekanth.Reddy@lsi.com> Cc: "James E.J. Bottomley" <JBottomley@parallels.com>
2013-11-23block: Convert bio_for_each_segment() to bvec_iterKent Overstreet1-15/+16
More prep work for immutable biovecs - with immutable bvecs drivers won't be able to use the biovec directly, they'll need to use helpers that take into account bio->bi_iter.bi_bvec_done. This updates callers for the new usage without changing the implementation yet. Signed-off-by: Kent Overstreet <kmo@daterainc.com> Cc: Jens Axboe <axboe@kernel.dk> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: "Ed L. Cashin" <ecashin@coraid.com> Cc: Nick Piggin <npiggin@kernel.dk> Cc: Lars Ellenberg <drbd-dev@lists.linbit.com> Cc: Jiri Kosina <jkosina@suse.cz> Cc: Paul Clements <Paul.Clements@steeleye.com> Cc: Jim Paris <jim@jtan.com> Cc: Geoff Levand <geoff@infradead.org> Cc: Yehuda Sadeh <yehuda@inktank.com> Cc: Sage Weil <sage@inktank.com> Cc: Alex Elder <elder@inktank.com> Cc: ceph-devel@vger.kernel.org Cc: Joshua Morris <josh.h.morris@us.ibm.com> Cc: Philip Kelleher <pjk1939@linux.vnet.ibm.com> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Jeremy Fitzhardinge <jeremy@goop.org> Cc: Neil Brown <neilb@suse.de> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: linux390@de.ibm.com Cc: Nagalakshmi Nandigama <Nagalakshmi.Nandigama@lsi.com> Cc: Sreekanth Reddy <Sreekanth.Reddy@lsi.com> Cc: support@lsi.com Cc: "James E.J. Bottomley" <JBottomley@parallels.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Steven Whitehouse <swhiteho@redhat.com> Cc: Herton Ronaldo Krzesinski <herton.krzesinski@canonical.com> Cc: Tejun Heo <tj@kernel.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Guo Chao <yan@linux.vnet.ibm.com> Cc: Asai Thambi S P <asamymuthupa@micron.com> Cc: Selvan Mani <smani@micron.com> Cc: Sam Bradshaw <sbradshaw@micron.com> Cc: Matthew Wilcox <matthew.r.wilcox@intel.com> Cc: Keith Busch <keith.busch@intel.com> Cc: Stephen Hemminger <shemminger@vyatta.com> Cc: Quoc-Son Anh <quoc-sonx.anh@intel.com> Cc: Sebastian Ott <sebott@linux.vnet.ibm.com> Cc: Nitin Gupta <ngupta@vflare.org> Cc: Minchan Kim <minchan@kernel.org> Cc: Jerome Marchand <jmarchan@redhat.com> Cc: Seth Jennings <sjenning@linux.vnet.ibm.com> Cc: "Martin K. Petersen" <martin.petersen@oracle.com> Cc: Mike Snitzer <snitzer@redhat.com> Cc: Vivek Goyal <vgoyal@redhat.com> Cc: "Darrick J. Wong" <darrick.wong@oracle.com> Cc: Chris Metcalf <cmetcalf@tilera.com> Cc: Jan Kara <jack@suse.cz> Cc: linux-m68k@lists.linux-m68k.org Cc: linuxppc-dev@lists.ozlabs.org Cc: drbd-user@lists.linbit.com Cc: nbd-general@lists.sourceforge.net Cc: cbe-oss-dev@lists.ozlabs.org Cc: xen-devel@lists.xensource.com Cc: virtualization@lists.linux-foundation.org Cc: linux-raid@vger.kernel.org Cc: linux-s390@vger.kernel.org Cc: DL-MPTFusionLinux@lsi.com Cc: linux-scsi@vger.kernel.org Cc: devel@driverdev.osuosl.org Cc: linux-fsdevel@vger.kernel.org Cc: cluster-devel@redhat.com Cc: linux-mm@kvack.org Acked-by: Geoff Levand <geoff@infradead.org>
2013-09-06[SCSI] Allow MPT Fusion SAS 3.0 driver to be built into the kernelGreg Kroah-Hartman1-1/+1
Right now the Makefile for the mpt3sas driver does not even allow the driver to be built into the kernel. So fix that up, as there doesn't seem to be any obvious reason why this shouldn't be done. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Sreekanth Reddy <Sreekanth.Reddy@lsi.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-09-03[SCSI] mpt3sas: Remove phys on topology changeJan Vesely1-1/+4
Signed-off-by: Jan Vesely <jvesely@redhat.com> Acked-by: Sreekanth Reddy <Sreekanth.Reddy@lsi.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-09-03[SCSI] mpt3sas: Added a driver module parameter max_msix_vectorsSreekanth Reddy1-0/+14
Added a driver module parameter max_msix_vectors. Using this module parameter the maximum number of MSI-X vectors could be set. The number of MSI-X vectors used would be the minimum of MSI-X vectors supported by the HBA, the number of CPU cores and the value set to max_msix_vectors module parameter. The default value of this module parameter is set to 8. The default value of this parameter is set to 8 inorder to reduce the amount of memory required for Reply Descriptor Post queue. This is because with the higher MSI-X vectors, some times kernel is not able to allocate the requested amount of memory and crash is observed. To overcome this problem, the default value is set to 8. Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@lsi.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-08-26[SCSI] mpt3sas: fix cleanup on controller resource mapping failureJoe Lawrence2-10/+18
If mpt3sas_base_map_resources takes an early error path then its counterpart, mpt3sas_base_free_resources needs to be careful about cleaning up: 1 - _base_mask_interrupts and _base_make_ioc_ready require memory mapped I/O registers, make sure that this is true. 2 - _base_free_irq iterates over the adapter's reply_queue_list, so move this list head initialization out of _base_enable_msix to _scsih_probe so this will always be safe. 3 - check that the controller PCI device and its BARs have been enabled before disabling them. Signed-off-by: Joe Lawrence <joe.lawrence@stratus.com> Acked-by: Sreekanth Reddy <Sreekanth.Reddy@lsi.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-07-09[SCSI] mpt3sas: Bump driver version to v02.100.00.00Sreekanth Reddy1-3/+3
Bump driver version to v02.100.00.00. Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@lsi.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-07-09[SCSI] mpt3sas: when async scanning is enabled then while scanning, devices are removed but their transport layer entries are not removedSreekanth Reddy1-9/+13
When Async scanning mode is enabled and device scanning is in progress, devices should not be removed. But in actuality, devices are removed but their transport layer entries are not removed. This causes error to add the same device to the transport layer after host reset or diagnostic reset. So, in this patch, modified the code in such a way that device is not removed when Async scanning mode is enabled and device scanning is in progress. Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@lsi.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-07-09[SCSI] mpt3sas: MPI2.5 Rev F v2.5.1.1 specificationSreekanth Reddy8-18/+45
Change set in MPI v2.5 Rev F(v2.5.1.1) specification and 2.00.29 header files 1. Added a bit to the IOCExceptions field of the IOCFacts Reply to indicate that the IOC detected a partial memory failure. 2. Added ElapsedSeconds field to RAID Volume Indicator Structure. Added Elapsed Seconds Valid flag to Flags field of this structure. 3. Added ElapsedSeconds field to Integrated RAID Operations Status Event Data. 4. Added two new AbortType values for TargetModeAbort Request, one to abort all I/Os from a single initiator, and the other to abort only Command IUs. 5. Added a new chapter covering DMA Flags and Multicast Modes. 6. In the IOCSettings field of BIOS Page 1, modified the Adapter Support bits description to specify X86 BIOS. 7. Marked bit 0 of the ControlFlags field of SAS IO Unit Page 1 as obsolete. This was the Clear SATA Affiliation flag. 8. Added additional requirements for certain IOCs that support more than eight MSI-x vectors. Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@lsi.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-07-09[SCSI] mpt3sas: Infinite loops can occur if MPI2_IOCSTATUS_CONFIG_INVALID_PAGE is not returnedSreekanth Reddy1-12/+4
Infinite loop can occur if IOCStatus is not equal to MPI2_IOCSTATUS_CONFIG_INVALID_PAGE value in the while loops in functions _scsih_search_responding_sas_devices, _scsih_search_responding_raid_devices and _scsih_search_responding_expanders So, Instead of checking for MPI2_IOCSTATUS_CONFIG_INVALID_PAGE value, in this patch code is modified to check for IOCStatus not equals to MPI2_IOCSTATUS_SUCCESS to break the while loop. Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@lsi.com> Cc: stable@vger.kernel.org Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-07-09[SCSI] mpt3sas: fix for kernel panic when driver loads with HBA conected to non LUN 0 configured expanderSreekanth Reddy1-0/+14
With some enclosures when LUN 0 is not created but LUN 1 or LUN X is created then SCSI scan procedure calls target_alloc, slave_alloc call back functions for LUN 0 and slave_destory() for same LUN 0. In these kind of cases within slave_destroy, pointer to scsi_target in _sas_device structure is set to NULL, following which when slave_alloc for LUN 1 is called then starget would not be set properly for this LUN. So, scsi_target pointer pointing to NULL value would lead to a crash later in the discovery procedure. To solve this issue set the sas_device's scsi_target pointer to scsi_device's scsi_target if it is NULL earlier in slave_alloc callback function. Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@lsi.com> Cc: stable@vger.kernel.org Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-07-09[SCSI] mpt3sas: Updated the Hardware timing requirementsSreekanth Reddy1-7/+13
Hardware timing requirements is updated in order to comply with firmware requirement. Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@lsi.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-07-09[SCSI] mpt3sas: 2013 source code copyrightSreekanth Reddy11-11/+11
The Copyright String in all mpt3sas files are changed to 2012-2013. Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@lsi.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-05-01Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfsLinus Torvalds1-14/+0
Pull VFS updates from Al Viro, Misc cleanups all over the place, mainly wrt /proc interfaces (switch create_proc_entry to proc_create(), get rid of the deprecated create_proc_read_entry() in favor of using proc_create_data() and seq_file etc). 7kloc removed. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (204 commits) don't bother with deferred freeing of fdtables proc: Move non-public stuff from linux/proc_fs.h to fs/proc/internal.h proc: Make the PROC_I() and PDE() macros internal to procfs proc: Supply a function to remove a proc entry by PDE take cgroup_open() and cpuset_open() to fs/proc/base.c ppc: Clean up scanlog ppc: Clean up rtas_flash driver somewhat hostap: proc: Use remove_proc_subtree() drm: proc: Use remove_proc_subtree() drm: proc: Use minor->index to label things, not PDE->name drm: Constify drm_proc_list[] zoran: Don't print proc_dir_entry data in debug reiserfs: Don't access the proc_dir_entry in r_open(), r_start() r_show() proc: Supply an accessor for getting the data from a PDE's parent airo: Use remove_proc_subtree() rtl8192u: Don't need to save device proc dir PDE rtl8187se: Use a dir under /proc/net/r8180/ proc: Add proc_mkdir_data() proc: Move some bits from linux/proc_fs.h to linux/{of.h,signal.h,tty.h} proc: Move PDE_NET() to fs/proc/proc_net.c ...
2013-04-29mpt3sas: don't wank with fasync on ->release()Al Viro1-14/+0
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-03-20treewide: Fix typos in printkMasanari Iida1-1/+1
Correct spelling typo in various drivers. Signed-off-by: Masanari Iida <standby24x7@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2013-01-29[SCSI] mpt3sas: remove unused variablesWei Yongjun2-5/+1
The variable 'chain_flags' and 'phy_number' are initialized but never used otherwise, So remove those unused variables. Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@lsi.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-01-29[SCSI] mpt3sas: Remove unneeded version.h header inclusionSachin Kamat5-5/+0
linux/version.h is not necessary as detected by checkversion.pl script. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Acked-by: "Sreekanth Reddy" <Sreekanth.reddy@lsi.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-01-29[SCSI] mpt3sas: cut and paste bug storing trigger mpiDan Carpenter1-1/+1
ioc->diag_trigger_mpi is an SL_WH_MPI_TRIGGERS_T struct. There is a cut and paste error here and SL_WH_EVENT_TRIGGERS_T is used instead of SL_WH_MPI_TRIGGERS_T. Since the SL_WH_EVENT_TRIGGERS_T is smaller than SL_WH_MPI_TRIGGERS_T, it means we only clear part of the buffer. I've changed it to use sizeof(ioc->diag_trigger_mpi) which is a bit simpler. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: "Sreekanth Reddy" <Sreekanth.reddy@lsi.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-01-03Drivers: scsi: remove __dev* attributes.Greg Kroah-Hartman1-3/+2
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>
2012-12-01[SCSI] mpt3sas: add new driver supporting 12GB SASSreekanth Reddy20-0/+30406
These driver files are initially, substantially similar to mpt2sas but, because mpt2sas is going into maintenance mode and mp3sas will become heavily developed, we elected to keep the code bases separate. Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@lsi.com> Reviewed-by: Nagalakshmi Nandigama <Nagalakshmi.Nandigama@lsi.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>