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path: root/drivers/scsi/hpsa_cmd.h
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* scsi: hpsa: update discovery pollingBader Ali Saleh2017-10-251-0/+2
| | | | | | | | | | | | | | | | Correct a corner case where newly created volumes are not detected automatically on an external RAID controller that has no configured volumes during initial device discovery. The fix is to set the discovery_polling flag when an external RAID controller is detected. This causes a device rescan every 20-30 seconds, so that newly created volumes will be detected automatically. Reviewed-by: Scott Benesh <scott.benesh@microsemi.com> Reviewed-by: Scott Teel <scott.teel@microsemi.com> Reviewed-by: Kevin Barnett <kevin.barnett@microsemi.com> Signed-off-by: Don Brace <don.brace@microsemi.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* scsi: hpsa: add controller checkpointDon Brace2017-10-251-0/+1
| | | | | | | | | | | Tell hpsa controller to generate a checkpoint for rare lockup conditions. Reviewed-by: Scott Benesh <scott.benesh@microsemi.com> Reviewed-by: Scott Teel <scott.teel@microsemi.com> Reviewed-by: Kevin Barnett <kevin.barnett@microsemi.com> Signed-off-by: Don Brace <don.brace@microsemi.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* scsi: hpsa: update identify physical device structureDon Brace2017-06-121-6/+14
| | | | | | | | | | | - align with latest spec. - added __attribute((aligned(512))) Reviewed-by: Scott Teel <scott.teel@microsemi.com> Reviewed-by: Scott Benesh <scott.benesh@microsemi.com> Reviewed-by: Kevin Barnett <kevin.barnett@microsemi.com> Signed-off-by: Don Brace <don.brace@microsemi.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* scsi: hpsa: update check for logical volume statusDon Brace2017-03-151-0/+2
| | | | | | | | | | | - Add in a new case for volume offline. Resolves internal testing bug for multilun array management. - Return correct status for failed TURs. Reviewed-by: Scott Benesh <scott.benesh@microsemi.com> Reviewed-by: Scott Teel <scott.teel@microsemi.com> Signed-off-by: Don Brace <don.brace@microsemi.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* scsi: hpsa: Check for vpd support before sendingScott Teel2016-09-141-0/+1
| | | | | | | | | | | | | | Before using vendor-specific VPD pages for getting raid_level and device_id, check for page support. If page isn't supported, don't try to use it. Also, pay attention to return status on hpsa_get_device_id. [mkp: fix boolean return warnings reported by kbuild test robot] Reviewed-by: Scott Benesh <scott.benest@microsemi.com> Reviewed-by: Scott Teel <scott.teel@microsemi.com> Reviewed-by: Kevin Barnett <kevin.barnett@microsemi.com> Signed-off-by: Don Brace <don.brace@microsemi.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* hpsa: update copyright informationDon Brace2016-02-231-1/+2
| | | | | | | | Reviewed-by: Justin Lindley <justin.lindley@microsemi.com> Reviewed-by: Kevin Barnett <kevin.barnett@microsemi.com> Reviewed-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com> Signed-off-by: Don Brace <don.brace@microsemi.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* hpsa: correct lun data caching bitmap definitionDon Brace2016-02-231-1/+1
| | | | | | | | | | | | | The bitmap was changed after this definition was added to the driver. Correcting the bitmap definition. Reviewed-by: Mahesh Rajashekhara <mahesh.rajashekhara@microsemi.com> Reviewed-by: Justin Lindley <justin.lindley@microsemi.com> Reviewed-by: Scott Teel <scott.teel@microsemi.com> Reviewed-by: Kevin Barnett <kevin.barnett@microsemi.com> Reviewed-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com> Signed-off-by: Don Brace <don.brace@microsemi.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* hpsa: Add box and bay information for enclosure devicesDon Brace2016-01-061-0/+13
| | | | | | | | | | | Adding a new method to display enclosure device information. Reviewed-by: Justin Lindley <justin.lindley@pmcs.com> Reviewed-by: Kevin Barnett <kevin.barnett@pmcs.com> Reviewed-by: Scott Teel <scott.teel@pmcs.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Don Brace <don.brace@pmcs.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* hpsa: add in sas transport classKevin Barnett2015-11-091-0/+14
| | | | | | | | | | | Reviewed-by: Scott Teel <scott.teel@pmcs.com> Reviewed-by: Justin Lindley <justin.lindley@pmcs.com> Reviewed-by: Kevin Barnett <kevin.barnett@pmcs.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Tomas Henzl <thenzl@redhat.com> Reviewed-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com> Signed-off-by: Don Brace <don.brace@pmcs.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* hpsa: disable report lun data cachingScott Teel2015-11-091-0/+3
| | | | | | | | | | | | | | | | | | | | | When external target arrays are present, disable the firmware's normal behavior of returning a cached copy of the report lun data, and force it to collect new data each time we request a report luns. This is necessary for external arrays, since there may be no reliable signal from the external array to the smart array when lun configuration changes, and thus when driver requests report luns, it may be stale data. Use diag options to turn off RPL data caching. Reviewed-by: Scott Teel <scott.teel@pmcs.com> Reviewed-by: Justin Lindley <justin.lindley@pmcs.com> Reviewed-by: Kevin Barnett <kevin.barnett@pmcs.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com> Signed-off-by: Don Brace <don.brace@pmcs.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* hpsa: generalize external arraysScott Teel2015-11-091-0/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | External array LUNs must use target and lun numbers assigned by the external array. So the driver must treat these differently from local LUNs when assigning lun/target. LUN's 'model' field has been used to detect Lun types that need special treatment, but the desire is to eliminate the need to reference specific array models, and support any external array. Pass-through RAID (PTRAID) luns are not luns of the local controller, so they are not reported in LUN count of command 'ID controller'. However, they ARE reported in "Report logical Luns" command. Local luns are listed first, then PTRAID LUNs. The number of luns from "Report LUNs" in excess of those reported by 'ID controller' are therefore the PTRAID LUNS. We can now remove function is_ext_target, and the 'white list' array of supported model names. Reviewed-by: Scott Teel <scott.teel@pmcs.com> Reviewed-by: Justin Lindley <justin.lindley@pmcs.com> Reviewed-by: Kevin Barnett <kevin.barnett@pmcs.com> Signed-off-by: Don Brace <don.brace@pmcs.com> Reviewed-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* hpsa: correct check for non-disk devicesDon Brace2015-11-091-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | The driver is using two MACROs which seemingly are looking in the wrong location for the device_flags returned from CISS_REPORT_PHYS. Both MACROs, NON_DISK_PHYS_DEV and PHYS_IOACCEL, are using the pointer returned from figure_lunaddrbytes which is the address of the LUN.lunid element in the extended CISS_REPORT_PHYS. But the MACROS are using offsets beyond the range of the element (offset 17 of an 8 byte element). These MACROs actually are looking at the correct location but they fail static checker analysis. It also will not work if any new elements are added to the extended LUN structure. Change the code to use the structure elements directly since this MACRO is only used in one location. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Scott Teel <scott.teel@pmcs.com> Reviewed-by: Justin Lindley <justin.lindley@pmcs.com> Reviewed-by: Kevin Barnett <kevin.barnett@pmcs.com> Reviewed-by: Tomas Henzl <thenzl@redhat.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Don Brace <don.brace@pmcs.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* hpsa: add in new offline modeScott Benesh2015-08-261-0/+1
| | | | | | | | | | | prevent adding volumes that are not available. Reviewed-by: Kevin Barnett <kevin.barnett@pmcs.com> Reviewed-by: Scott Teel <scott.teel@pmcs.com> Reviewed-by: Justin Lindley <justin.lindley@pmcs.com> Reviewed-by: Tomas Henzl <thenzl@redhat.com> Signed-off-by: Don Brace <don.brace@pmcs.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* hpsa: add PMC to copyrightDon Brace2015-08-261-6/+3
| | | | | | | | | | | need to add PMC to copyright notice and update the Hewlett-Packard copyright notification. Reviewed-by: Scott Teel <scott.teel@pmcs.com> Reviewed-by: Kevin Barnett <kevin.barnett@pmcs.com> Reviewed-by: Justin Lindley <justin.lindley@pmcs.com> Signed-off-by: Don Brace <don.brace@pmcs.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* hpsa: cleanup resetWebb Scales2015-05-311-0/+1
| | | | | | | | | | | | | | | | | | | | | Synchronize completion the reset with completion of outstanding commands Extending the newly-added synchronous abort functionality, now also synchronize resets with the completion of outstanding commands. Rename the wait queue to reflect the fact that it's being used for both types of waits. Also, don't complete commands which are terminated due to a reset operation. fix for controller lockup during reset Reviewed-by: Scott Teel <scott.teel@pmcs.com> Reviewed-by: Kevin Barnett <kevin.barnett@pmcs.com> Reviewed-by: Tomas Henzl <thenzl@redhat.com> Reviewed-by: Hannes Reinecke <hare@Suse.de> Signed-off-by: Webb Scales <webbnh@hp.com> Signed-off-by: Don Brace <don.brace@pmcs.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* hpsa: don't return abort request until target is completeWebb Scales2015-05-311-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Don't return from the abort request until the target command is complete. Mark outstanding commands which have a pending abort, and do not send them to the host if we can avoid it. If the current command has been aborted, do not call the SCSI command completion routine from the I/O path: when the abort returns successfully, the SCSI mid-layer will handle the completion implicitly. The following race was possible in theory. 1. LLD is requested to abort a scsi command 2. scsi command completes 3. The struct CommandList associated with 2 is made available. 4. new io request to LLD to another LUN re-uses struct CommandList 5. abort handler follows scsi_cmnd->host_scribble and finds struct CommandList and tries to aborts it. Now we have aborted the wrong command. Fix by resetting the scsi_cmd field of struct CommandList upon completion and making the abort handler check that the scsi_cmd pointer in the CommadList struct matches the scsi_cmnd that it has been asked to abort. Reviewed-by: Scott Teel <scott.teel@pmcs.com> Reviewed-by: Kevin Barnett <kevin.barnett@pmcs.com> Reviewed-by: Tomas Henzl <thenzl@redhat.com> Reviewed-by: Hannes Reinecke <hare@Suse.de> Signed-off-by: Webb Scales <webbnh@hp.com> Signed-off-by: Don Brace <don.brace@pmcs.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* hpsa: add support sending aborts to physical devices via the ioaccel2 pathStephen Cameron2015-05-311-2/+4
| | | | | | | | | | | | | add support for tmf when in ioaccel2 mode Reviewed-by: Scott Teel <scott.teel@pmcs.com> Reviewed-by: Kevin Barnett <kevin.barnett@pmcs.com> Reviewed-by: Tomas Henzl <thenzl@redhat.com> Reviewed-by: Hannes Reinecke <hare@Suse.de> Signed-off-by: Joe Handzik <joseph.t.handzik@hp.com> Signed-off-by: Don Brace <don.brace@pmcs.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* hpsa: add more ioaccel2 error handling, including underrun statuses.Joe Handzik2015-05-311-0/+6
| | | | | | | | | | | | improve ioaccel2 error handling, including better handling of underrun statuses Reviewed-by: Scott Teel <scott.teel@pmcs.com> Reviewed-by: Kevin Barnett <kevin.barnett@pmcs.com> Signed-off-by: Joe Handzik <joseph.t.handzik@hp.com> Signed-off-by: Don Brace <don.brace@pmcs.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* hpsa: factor out hpsa_init_cmd functionStephen Cameron2015-05-311-1/+1
| | | | | | | | | | | | | | | | | | | | Factor out hpsa_cmd_init from cmd_alloc(). We also need this for resubmitting commands down the default RAID path when they have returned from the ioaccel paths with errors. In particular, reinitialize the cmd_type and busaddr fields as these will not be correct for submitting down the RAID stack path after ioaccel command completion. This saves time when submitting commands. Reviewed-by: Scott Teel <scott.teel@pmcs.com> Reviewed-by: Kevin Barnett <kevin.barnett@pmcs.com> Reviewed-by: Tomas Henzl <thenzl@redhat.com> Reviewed-by: Hannes Reinecke <hare@Suse.de> Signed-off-by: Don Brace <don.brace@pmcs.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* hpsa: hpsa decode sense data for io and tmfStephen Cameron2015-05-311-0/+9
| | | | | | | | | | | | | | | | | | In hba mode, we could get sense data in descriptor format so we need to handle that. It's possible for CommandStatus to have value 0x0D "TMF Function Status", which we should handle. We will get this from a P1224 when aborting a non-existent tag, for example. The "ScsiStatus" field of the errinfo field will contain the TMF function status value. Reviewed-by: Scott Teel <scott.teel@pmcs.com> Reviewed-by: Kevin Barnett <kevin.barnett@pmcs.com> Reviewed-by: Tomas Henzl <thenzl@redhat.com> Signed-off-by: Don Brace <don.brace@pmcs.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* hpsa: rework controller command submissionWebb Scales2015-05-311-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Allow driver initiated commands to have a timeout. It does not yet try to do anything with timeouts on such commands. We are sending a reset in order to get rid of a command we want to abort. If we make it return on the same reply queue as the command we want to abort, the completion of the aborted command will not race with the completion of the reset command. Rename hpsa_scsi_do_simple_cmd_core() to hpsa_scsi_do_simple_cmd(), since this function is the interface for issuing commands to the controller and not the "core" of that implementation. Add a parameter to it which allows the caller to specify the reply queue to be used. Modify existing callers to specify the default reply queue. Rename __hpsa_scsi_do_simple_cmd_core() to hpsa_scsi_do_simple_cmd_core(), since this routine is the "core" implementation of the "do simple command" function and there is no longer any other function with a similar name. Modify the existing callers of this routine (other than hpsa_scsi_do_simple_cmd()) to instead call hpsa_scsi_do_simple_cmd(), since it will now accept the reply_queue paramenter, and it provides a controller lock-up check. (Also, tweak two related message strings to make them distinct from each other.) Submitting a command to a locked up controller always results in a timeout, so check for controller lock-up before submitting. This is to enable fixing a race between command completions and abort completions on different reply queues in a subsequent patch. We want to be able to specify which reply queue an abort completion should occur on so that it cannot race the completion of the command it is trying to abort. The following race was possible in theory: 1. Abort command is sent to hardware. 2. Command to be aborted simultaneously completes on another reply queue. 3. Hardware receives abort command, decides command has already completed and indicates this to the driver via another different reply queue. 4. driver processes abort completion finds that the hardware does not know about the command, concludes that therefore the command cannot complete, returns SUCCESS indicating to the mid-layer that the scsi_cmnd may be re-used. 5. Command from step 2 is processed and completed back to scsi mid layer (after we already promised that would never happen.) Fix by forcing aborts to complete on the same reply queue as the command they are aborting. Piggybacking device rescanning functionality onto the lockup detection thread is not a good idea because if the controller locks up during device rescanning, then the thread could get stuck, then the lockup isn't detected. Use separate work queues for device rescanning and lockup detection. Detect controller lockup in abort handler. After a lockup is detected, return DO_NO_CONNECT which results in immediate termination of commands rather than DID_ERR which results in retries. Modify detect_controller_lockup() to return the result, to remove the need for a separate check. Reviewed-by: Scott Teel <scott.teel@pmcs.com> Reviewed-by: Kevin Barnett <kevin.barnett@pmcs.com> Signed-off-by: Webb Scales <webbnh@hp.com> Signed-off-by: Don Brace <don.brace@pmcs.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* hpsa: add masked physical devices into h->dev[] arrayStephen Cameron2015-05-311-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Cache the ioaccel handle so that when we need to abort commands sent down the ioaccel2 path, we can look up the LUN ID in h->dev[] instead of having to do I/O to the controller. Add a field to elements in h->dev[] to keep track of how the device is exposed to the SCSI mid layer: Not at all, without an upper level driver (no_uld_attach) or normally exposed. Since masked physical devices are now present in h->dev[] array it would be perfectly possible to do echo scsi add-single-device 2 2 0 0 > /proc/scsi/scsi and bring them online. This was previously not allowed for masked physical devices. Ensure that the mapping of physical disks to logical drives gets updated in a consistent way when a RAID migration occurs and is not touched until updates to it are complete. now instead of doing CISS_REPORT_PHYSICAL to get the LUNID for the physical disk in hpsa_get_pdisk_of_ioaccel2(), just get it out of h->dev[] where we already have it cached. do not touch phys_disk[] for ioaccel enabled logical drives during rescan Reviewed-by: Scott Teel <scott.teel@pmcs.com> Reviewed-by: Kevin Barnett <kevin.barnett@pmcs.com> Reviewed-by: Tomas Henzl <thenzl@redhat.com> Reviewed-by: Hannes Reinecke <hare@Suse.de> Signed-off-by: Don Brace <don.brace@pmcs.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* hpsa: do not use a void pointer for scsi_cmd field of struct CommandListStephen Cameron2015-02-021-1/+1
| | | | | | | | There's no reason for it to be a void *, it should be a struct scsi_cmnd * Reviewed-by: Scott Teel <scott.teel@pmcs.com> Signed-off-by: Don Brace <don.brace@pmcs.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
* hpsa: fix race between abort handler and main i/o pathWebb Scales2015-02-021-0/+1
| | | | | | | | | | | | | | | | | | | | | This means changing the allocator to reference count commands. The reference count is now the authoritative indicator of whether a command is allocated or not. The h->cmd_pool_bits bitmap is now only a heuristic hint to speed up the allocation process, it is no longer the authoritative record of allocated commands. Since we changed the command allocator to use reference counting as the authoritative indicator of whether a command is allocated, fail_all_outstanding_cmds needs to use the reference count not h->cmd_pool_bits for this purpose. Fix hpsa_drain_accel_commands to use the reference count as the authoritative indicator of whether a command is allocated instead of the h->cmd_pool_bits bitmap. Reviewed-by: Scott Teel <scott.teel@pmcs.com> Signed-off-by: Don Brace <don.brace@pmcs.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
* hpsa: honor queue depth of physical devicesDon Brace2015-02-021-0/+148
| | | | | | | | | | | | | | | | | | | | | | | When using the ioaccel submission methods, requests destined for RAID volumes are sometimes diverted to physical devices. The OS has no or limited knowledge of these physical devices, so it is up to the driver to avoid pushing the device too hard. It is better to honor the physical device queue limit rather than making the device spew zillions of TASK SET FULL responses. This is so that hpsa based devices support /sys/block/sdNN/device/queue_type of simple, which lets the SCSI midlayer automatically adjust the queue_depth based on TASK SET FULL and GOOD status. Adjust the queue depth for a new device after it is created based on the maximum queue depths of the physical devices that constitute the device. This drops the maximum queue depth from .can_queue of 1024 to something like 174 for single-drive RAID-0, 348 for two-drive RAID-1, etc. It also adjusts for the ratio of data to parity drives. Reviewed-by: Scott Teel <scott.teel@pmcs.com> Signed-off-by: Webb Scales <webbnh@hp.com> Signed-off-by: Don Brace <don.brace@pmcs.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
* hpsa: use workqueue to resubmit failed ioaccel commandsDon Brace2015-02-021-0/+1
| | | | | | | | | | | | | Instead of kicking the commands all the way back to the mid layer, use a work queue. This enables having a mechanism for the driver to be able to resubmit the commands down the "normal" raid path without turning off the ioaccel feature entirely whenever an error is encountered on the ioaccel path, and prevent excessive rescanning of devices. Reviewed-by: Scott Teel <scott.teel@pmcs.com> Signed-off-by: Don Brace <don.brace@pmcs.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
* hpsa: do not queue commands internally in driverDon Brace2015-02-021-7/+3
| | | | | | | | | | | | | | | | | | By not doing maintaining a list of queued commands, we can eliminate some spin locking in the main i/o path and gain significant improvement in IOPS. Remove the queuing code and the code that calls it; remove now-unused interrupt code; remove DIRECT_LOOKUP_BIT. Now that the passthru commands share the same command pool as the main i/o path, and the total size of the pool is less than or equal to the number of commands that will fit in the hardware fifo, there is no need to check to see if we are exceeding the hardware fifo's depth. Reviewed-by: Scott Teel <scott.teel@pmcs.com> Reviewed-by: Robert Elliott <elliott@hp.com> Signed-off-by: Don Brace <don.brace@pmcs.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
* hpsa: correct endian sparse warningsDon Brace2015-02-021-86/+86
| | | | | | | | | | Correct endiness issues reported by sparse. SA controllers are little endian. This patch ensures endiness correctness. Signed-off-by: Don Brace <don.brace@pmcs.com> Reviewed-by: Scott Teel <scott.teel@pmcs.com> Reviewed-by: Webb Scales <webbnh@hp.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
* hpsa: get rid of type/attribute/direction bit field where possibleStephen M. Cameron2014-11-201-5/+13
| | | | | | | | | | | | Using bit fields for hardware command fields isn't portable and relies on assumptions about how the compiler lays out the bits. We can fix this in the driver's internal command structure, but the ioctl interface we can't change because it is part of the userland ABI. Signed-off-by: Don Brace <don.brace@pmcs.com> Reviewed-by: Webb Scales <webb.scales@hp.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
* hpsa: fix endianness issue with scatter gather elementsStephen M. Cameron2014-11-201-7/+7
| | | | | | | | | | | | The hardware needs little endian scatter gather addresses and lengths but we were not bothering to convert from cpu byte order as we should have been. On Intel, this is all just a bunch of no-ops macros, but it makes the code endian-clean(er). Signed-off-by: Don Brace <don.brace@pmcs.com> Signed-off-by: Robert Elliott <elliott@hp.com> Reviewed-by: Webb Scales <webbnh@hp.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
* hpsa: fix allocation sizes for CISS_REPORT_LUNs commandsStephen M. Cameron2014-11-201-1/+1
| | | | | | | | | | | | | | | We were allocating roughly double the amount of memory we should be due to ReportLUNdata and ExtendedReportLUNdata containing a non-zero sized array but adding extra memory to allocate as if the array were zero sized. Track the logical and physical sizes separately. Allocate the memory based on the specific data structure sizes. Signed-off-by: Don Brace <don.brace@pmcs.com> Reviewed-by: Webb Scales <webb.scales@hp.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
* hpsa: fix handling of hpsa_volume_offline return valueStephen M. Cameron2014-06-021-1/+1
| | | | | | | | | | Make return value an int instead of an unsigned char so that we do not lose negative error return values. Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Reviewed-by: Webb Scales <webb.scales@hp.com> Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
* hpsa: define extended_report_lun_entry data structureStephen M. Cameron2014-06-021-1/+11
| | | | | | Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Reviewed-by: Joe Handzik <joseph.t.handzik@hp.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
* hpsa: choose number of reply queues more intelligently.Stephen M. Cameron2014-06-021-1/+1
| | | | | | | | | | | No sense having 8 or 16 reply queues if you only have 4 cpus, and likewise no sense limiting to 8 reply queues if you have many more cpus. Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Reviewed-by: Mike Miller <michael.miller@canonical.com> Reviewed-by: Scott Teel <scott.teel@hp.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
* hpsa: use gcc aligned attribute instead of manually padding structsStephen M. Cameron2014-06-021-27/+6
| | | | | | Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Reviewed-by: Webb Scales <webb.scales@hp.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
* [SCSI] hpsa: Add hba mode to the hpsa driverStephen M. Cameron2014-03-151-0/+1
| | | | | | | | | | This allows exposing physical disks behind Smart Array controllers to the OS (if the controller has the right firmware and is in "hba" mode) Signed-off-by: Joe Handzik <joseph.t.handzik@hp.com> Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
* [SCSI] hpsa: remove unused struct request from CommandListStephen M. Cameron2014-03-151-3/+2
| | | | | Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
* [SCSI] hpsa: bring format-in-progress drives online when readyStephen M. Cameron2014-03-151-0/+15
| | | | | | | | | | | Do not expose drives that are undergoing a format immediately to the OS, instead wait until they are ready before bringing them online. This is so that logical drives created with "rapid parity initialization" do not get immediately kicked off the system for being unresponsive. Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
* [SCSI] hpsa: add controller base data-at-rest encryption compatibility ioaccel2Scott Teel2014-03-151-5/+14
| | | | | | | | | | | | | | | | | | | | | | Add controller-based data-at-rest encryption compatibility to ioaccel2 path (HP SSD Smart Path). Encryption feature requires driver to supply additional fields for encryption enable, tweak index, and data encryption key index in the ioaccel2 request structure. Encryption enable flag and data encryption key index come from raid_map data structure from raid offload command. During ioaccel2 submission, check device structure's raid map to see if encryption is enabled for the device. If so, call new function below. Add function set_encrypt_ioaccel2 to set encryption flag, data encryption key index, and calculate tweak value from request's logical block address. Signed-off-by: Scott Teel <scott.teel@hp.com> Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
* [SCSI] hpsa: update source file copyrightsScott Teel2014-03-151-1/+1
| | | | | | Signed-off-by: Scott Teel <scott.teel@hp.com> Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
* [SCSI] hpsa: do not inquire for unsupported ioaccel status vpd pageStephen M. Cameron2014-03-151-0/+2
| | | | | Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
* [SCSI] hpsa: add task management for ioaccel mode 2Scott Teel2014-03-151-3/+4
| | | | | | | | | | | Underlying firmware cannot handle task abort on accelerated path (SSD Smart Path). Change abort requests for accelerated path commands to physical target reset. Send reset request on normal IO path. Signed-off-by: Scott Teel <scott.teel@hp.com> Signed-off-by: Mike Miller <michael.miller@canonical.com> Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
* [SCSI] hpsa: get ioaccel mode 2 i/o workingScott Teel2014-03-151-0/+1
| | | | | | | | Signed-off-by: Scott Teel <scott.teel@hp.com> Signed-off-by: Joe Handzik <Joseph.T.Handzik@hp.com> Signed-off-by: Mike Miller <michael.miller@canonical.com> Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
* [SCSI] hpsa: initialize controller to perform io accelerator mode 2Stephen M. Cameron2014-03-151-1/+1
| | | | | | Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: Scott Teel <scott.teel@hp.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
* [SCSI] hpsa: Acknowledge controller events in ioaccell mode 2 as well as mode 1Stephen M. Cameron2014-03-151-0/+1
| | | | | Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
* [SCSI] hpsa: add ioaccel mode 2 structure definitionsMike Miller2014-03-151-0/+99
| | | | | | Signed-off-by: Mike Miller <michael.miller@canonical.com> Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
* [SCSI] hpsa: poll controller to detect device change eventStephen M. Cameron2014-03-151-0/+3
| | | | | | | | | | | | | | | For shared SAS configurations, hosts need to poll Smart Arrays periodically in order to be able to detect configuration changes such as logical drives being added or removed from remote hosts. A register on the controller indicates when such events have occurred, and the driver polls the register via a workqueue and kicks off a rescan of devices if such an event is detected. Additionally, changes to logical drive raid offload eligibility are autodetected in this way. Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: Scott Teel <scott.teel@hp.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
* [SCSI] hpsa: add ioaccell mode 1 RAID offload support.Stephen M. Cameron2014-03-151-3/+62
| | | | | | | | | | | | | | | | This enables sending i/o's destined for RAID logical drives which can be serviced by a single physical disk down a different, faster i/o path directly to physical drives for certain logical volumes on SSDs bypassing the Smart Array RAID stack for a performance improvement. Signed-off-by: Matt Gates <matthew.gates@hp.com> Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: Scott Teel <scott.teel@hp.com> Signed-off-by: Mike Miller <michael.miller@canonical.com> Signed-off-by: Don Brace <brace@beardog.cce.hp.com> Signed-off-by: Joe Handzik <joseph.t.handzik@hp.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
* [SCSI] hpsa: add support for 'fastpath' i/oMatt Gates2014-03-151-0/+60
| | | | | | | | | | For certain i/o's to certain devices (unmasked physical disks) we can bypass the RAID stack firmware and do the i/o to the device directly and it will be faster. Signed-off-by: Matt Gates <matthew.gates@hp.com> Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
* [SCSI] hpsa: mark last scatter gather element as the lastMatt Gates2014-03-151-0/+1
| | | | | | | | | This is normally optional, but for SSD Smart Path support (in subsequent patches) it is required. Signed-off-by: Matt Gates <matthew.gates@hp.com> Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-18 21:32:53 +0000