- 30 Jul, 2014 1 commit
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Alexander Gordeev authored
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:
Jack Wang <xjtuwjp@gmail.com> Signed-off-by:
Christoph Hellwig <hch@lst.de>
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- 29 Jul, 2014 8 commits
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Alexander Gordeev authored
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:
Arvind Kumar <arvindkumar@vmware.com> Signed-off-by:
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Alexander Gordeev authored
When a call to request_irq() failed pm8001_setup_msix() still returns the success. This udate fixes the described misbehaviour. Signed-off-by:
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Alexander Gordeev authored
There is no need to call pci_disable_msix() in case the previous call to pci_enable_msix() failed Signed-off-by:
James Smart <james.smart@emulex.com> Signed-off-by:
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Alexander Gordeev authored
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:
Artur Paszkiewicz <artur.paszkiewicz@intel.com> Signed-off-by:
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Alexander Gordeev authored
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:
Anil Gurumurthy <anil.gurumurthy@qlogic.com> Signed-off-by:
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Alexander Gordeev authored
Signed-off-by:
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Alexander Gordeev authored
Function pci_enable_msix() should not be called in case it threw a negative errno from a previous call. Signed-off-by:
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Alexander Gordeev authored
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:
"Suma Ramars (sramars)" <sramars@cisco.com> Signed-off-by:
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- 26 Jul, 2014 1 commit
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Douglas Gilbert authored
- add host_lock option whose default value is 0 which removes the host_lock around all queued commands - accept delay=-1 (_hi_) or -2 which use a tasklet to invoke the scsi_done callback into the mid-layer. The default is still delay=1 which uses a timer to delay 1 jiffy - wire .change_queue_depth and .change_queue_type functions to better simulate queueing in a modern LLD - add SCSI_DEBUG_OPT_Q_NOISE (0x200) mask to only produce debug output associated with queue full, plus from .change_queue_depth and .change_queue_type functions - add SCSI_DEBUG_OPT_ALL_TSF (0x400) mask which reports all queued_arr fulls at TASK_SET_FULL, otherwise SCSI_MLQUEUE_HOST_BUSY is returned - add SCSI_DEBUG_OPT_RARE_TSF (0x800) mask which works together with the every_nth option (> 0) to count occurrences of num_in_q==queue_depth. When every_nth is reached the victim (a command) yields TASK SET FULL - clean up many debug messages. - add ndelay=<nanosecs> option that uses high resolution timers; active if > 0 and then overrides delay= option - expand Unit Attention handling: POR, BUS_RESET and MODE PARAMETERS CHANGED - support .eh_target_reset_handler and drop .bios_param - add OPT_N_WCE mask so caching page yields WCE=0 - add OPT_RESET_NOISE mask to log aborts and resets - add OPT_NO_CDB_NOISE mask to not log each cdb - MODE SELECT support for changing caching page's WCE - name common ioctls in log - when fake_rw=1, do not vmalloc fake store; make UNMAP and WRITE SAME obey fake_rw - more logging and code improvements including better sense buffer handling With fio and four (pseudo) devices I have observed 1.2 M IOPS on my equipment. Rob Elliott who has done much testing and made numerous suggestions, has better IOPS results than mine. Signed-off-by:
Douglas Gilbert <dgilbert@interlog.com> Reviewed-by:
Robert Elliott <elliott@hp.com> Tested-by:
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- 25 Jul, 2014 30 commits
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K. Y. Srinivasan authored
Add blist flags to permit the reading of the VPD pages even when the target may claim SPC-2 compliance. MSFT targets currently claim SPC-2 compliance while they implement post SPC-2 features. With this patch we can correctly handle WRITE_SAME_16 issues. Signed-off-by:
K. Y. Srinivasan <kys@microsoft.com> Reviewed-by:
Hannes Reinecke <hare@suse.de> Signed-off-by:
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Sujit Reddy Thumma authored
Fix many warnings with incorrect endian assumptions which makes the code unportable to new architectures. The UFS specification defines the byte order as big-endian for UPIU structure and little-endian for the host controller transfer/task management descriptors. Signed-off-by:
Sujit Reddy Thumma <sthumma@codeaurora.org> Signed-off-by:
Dolev Raviv <draviv@codeaurora.org> Signed-off-by:
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Sujit Reddy Thumma authored
Make undeclared functions static to suppress warnings from sparse tool. Signed-off-by:
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Vikas Chaudhary authored
Signed-off-by:
Vikas Chaudhary <vikas.chaudhary@qlogic.com> Signed-off-by:
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Tomas Henzl authored
Instead of copying information to fw_control_context free it. The task is forgotten thus also the reference to fw_control_context and the completion thread takes the info from virt_ptr again. Signed-off-by:
Tomas Henzl <thenzl@redhat.com> Acked-by:
Suresh Thiagarajan <Suresh.Thiagarajan@pmcs.com> Signed-off-by:
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Tomas Henzl authored
The driver checks the return valu, but after he tries to wait_for_completion which might never happen. Also the ioctl buffer is freed at the end of the function, so the first removal is not needed. Signed-off-by:
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Tomas Henzl authored
ccb->fw_control_context is copied to local fw_control_context and the local variable is never used later Free ccb->fw_control_context. The task is forgotten thus also the reference to fw_control_context and the completion thread takes the info from virt_ptr again. Signed-off-by:
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Rickard Strandqvist authored
There is a risk that the variable will be used without being initialized. This was largely found by using a static code analysis program called cppche Signed-off-by:
Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se> Acked-by:
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Rickard Strandqvist authored
Removal of null pointer checks that could never happen Signed-off-by:
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Tomas Henzl authored
The driver ignores the return value in a lot of places, fix it at least somewhere (and release the resources in such cases), to avoid that bad things happen. A memory leak is fixed too. Signed-off-by:
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Tomas Henzl authored
Patch adds a new spinlock to protect the ccb management. It may happen that concurrent threads become the same tag value from the 'alloc' function', the spinlock prevents this situation. Signed-off-by:
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Tomas Henzl authored
The driver ignores the return value in a lot of places, fix it at least somewhere (and release the resources in such cases), to avoid that bad things happen. Signed-off-by:
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Tomas Henzl authored
In the driver two different functions are used to free the same resource, this patch makes the code easier to read. In addittion to that, some minor optimisations were made too. Signed-off-by:
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Bradley Grove authored
During hibernation, the HBA firmware may lose power and forget the device id info. This causes the HBA to reject IO upon resume. The fix is to call the libsas power management routines to make the domain device forgetful. This fixes bug 76681: https://bugzilla.kernel.org/show_bug.cgi?id=76681Signed-off-by:
Bradley Grove <bgrove@attotech.com> Acked-by:
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Reddy, Sreekanth authored
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:
Nagalakshmi Nandigama <Nagalakshmi.Nandigama@avagotech.com> Signed-off-by:
Sreekanth Reddy <Sreekanth.Reddy@avagotech.com> Signed-off-by:
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Reddy, Sreekanth authored
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:
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K. Y. Srinivasan authored
On some Windows hosts on FC SANs, TEST_UNIT_READY can return SRB_STATUS_ERROR. Correctly handle this. Note that there is sufficient sense information to support scsi error handling even in this case. Signed-off-by:
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K. Y. Srinivasan authored
Correctly set SRB flags for all valid I/O directions. Some IHV drivers on the Windows host require this. The host validates the command and SRB flags prior to passing the command down to native driver stack. Signed-off-by:
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K. Y. Srinivasan authored
On Azure, we have seen instances of unbounded I/O latencies. To deal with this issue, implement handler that can reset the timeout. Note that the host gaurantees that it will respond to each command that has been issued. Signed-off-by:
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K. Y. Srinivasan authored
Based on the negotiated VMBUS protocol version, we adjust the size of the storage protocol messages. The two sizes we currently handle are pre-win8 and post-win8. In WS2012 R2, we are negotiating higher VMBUS protocol version than the win8 version. Make adjustments to correctly handle this. Signed-off-by:
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K. Y. Srinivasan authored
Going forward it is possible that some of the commands that are not currently implemented will be implemented on future Windows hosts. Even if they are not implemented, we are told the host will corrrectly handle unsupported commands (by returning appropriate return code and sense information). Make command filtering depend on the host version. Signed-off-by:
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K. Y. Srinivasan authored
Set cmd_per_lun to reflect value supported by the Host. Signed-off-by:
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K. Y. Srinivasan authored
Hyper-V hosts can support multiple targets and multiple channels and larger number of LUNs per target. Update the code to reflect this. With this patch we can correctly enumerate all the paths in a multi-path storage environment. Signed-off-by:
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Akinobu Mita authored
If the controller doesn't support 64-bit addressing mode, it must not set the DMA mask to 64-bit. But it's unconditionally trying to set to 64-bit without checking 64-bit addressing support in the controller capabilities. It was correctly checked before commit 3b1d0580 ("[SCSI] ufs: Segregate PCI Specific Code"), this aims to restores the correct behaviour. To achieve this in a generic way, firstly we should push down the DMA mask setting routine ufshcd_set_dma_mask() from PCI glue driver to core driver in order to do it for both PCI glue driver and Platform glue driver. Secondly, we should change pci_ DMA mapping API to dma_ DMA mapping API because core driver is independent of glue drivers. Signed-off-by:
Akinobu Mita <mita@fixstars.com> Acked-by:
Santosh Y <santoshsy@gmail.com> Signed-off-by:
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Akinobu Mita authored
The data byte count field of PRDT indicates the length of data block which is a segment of data transfer for SCSI commands. The value of this field shall have Dword granularity and the the maximum of length is 256KB. This adjusts dma pad mask and max segment size to the above-mentioned PRDT limitations. Signed-off-by:
Subhash Jadavani <subhashj@codeaurora.org> Tested-by:
Vinayak Holikatti <vinholikatti@gmail.com> Signed-off-by:
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Sujit Reddy Thumma authored
UFS 1.1 specification does not support MAINTENANCE IN(0xA3) SCSI command and hence it doesn't support REPORT SUPPORTED OPERATION CODES as well. Change-Id: Ic09c5b46b2511b1c28db478023c32b898ac69e6d Signed-off-by:
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Dolev Raviv authored
In interrupt context, after reading and comparing the UTRLDBR to hba->outstanding_request and before resetting the interrupt aggregation, there might be completion of another transfer request (TR). Such TRs might get stuck, pending, until the next interrupt is generated (if any). Changing the sequence of resetting the interrupt aggregation first and then reading UTRLDBR status, will assure that completed TRs won't get stuck pending. Signed-off-by:
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Sujit Reddy Thumma authored
Some UFS devices may expose bLUQueueDepth field as zero indicating that the queue depth depends on the number of resources available for LUN at a particular instant to handle the outstanding transfer requests. Currently, when response for SCSI command is TASK_FULL the LLD decrements the queue depth but fails to increment when the resources are available. The scsi mid-layer handles the change in queue depth heuristically and offers simple interface with ->change_queue_depth. Signed-off-by:
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Dolev Raviv authored
Some of the UFS devices may support different number of commands that can be queued per LU. At the current implementation, SW configure each of the UFS devices LU's according to the controller capability. In this patch the queue depth available per LU is read and updated in the LU's SW structure. Signed-off-by:
Raviv Shvili <rshvili@codeaurora.org> Acked-by:
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Dolev Raviv authored
Check query response status before copying the response. Add descriptor query response size check, before copying it to buffer. Signed-off-by:
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