- Feb 26, 2016
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Sudip Mukherjee authored
parport_claim() can fail and we should be checking if we were able to claim the port. Signed-off-by:
Sudip Mukherjee <sudip.mukherjee@codethink.co.uk> Reviewed-by:
Matthew R. Ochs <mrochs@linux.vnet.ibm.com> Signed-off-by:
Martin K. Petersen <martin.petersen@oracle.com>
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- Feb 24, 2016
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Charles authored
Add S3/S4 support, add .suspend and .resume function in pci_driver. In .suspend handler, driver send S3/S4 signal to the device. Signed-off-by:
Charles Chiou <charles.chiou@tw.promise.com> Reviewed-by:
Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by:
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Charles authored
1. Add hotplug support. Pegasus support surprise removal. To this end, I use return_abnormal_state function to return DID_NO_CONNECT for all commands which sent to driver. 2. Remove stex_hba_stop in stex_remove because we cannot send command to device after hotplug. 3. Add new device status: MU_STATE_STOP, MU_STATE_NOCONNECT, MU_STATE_STOP. MU_STATE_STOP is currently not referenced. MU_STATE_NOCONNECT represent that device is plugged out from the host. 4. Use return_abnormal_function() to substitute part of code in stex_do_reset. Signed-off-by:
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Charles authored
Pegasus is a high performace hardware RAID solution designed to unleash the raw power of Thunderbolt technology. 1. Add code to distinct SuperTrack and Pegasus series by sub device ID. It should support backward compatibility. 2. Change the driver version. Signed-off-by:
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Don Brace authored
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Kevin Barnett <kevin.barnett@microsemi.com> Reviewed-by:
Justin Lindley <justin.lindley@microsemi.com> Reviewed-by:
Don Brace <don.brace@microsemi.com> Signed-off-by:
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Don Brace authored
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Don Brace authored
This patch depends on patch - commit ac10a3e4ed64 ("Export function scsi_scan.c:sanitize_inquiry_string") Suggested-by:Hannes Reinecke <hare@suse.de> Suggested-by:
Mahesh Rajashekhara <mahesh.rajashekhara@microsemi.com> Reviewed-by:
Scott Teel <scott.teel@microsemi.com> Reviewed-by:
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Don Brace authored
An oops can occur when submitting ioaccel2 commands when the phys_disk pointer is NULL in hpsa_scsi_ioaccel_raid_map. Happens when there are configuration changes during I/O operations. If the phys_disk pointer is NULL, send the command down the RAID path. Reviewed-by:
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Don Brace authored
Aborts were not being sent down to HBA devices Reviewed-by:
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Don Brace authored
The bitmap was changed after this definition was added to the driver. Correcting the bitmap definition. Reviewed-by:
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Don Brace authored
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Don Brace authored
Stop annoying "Error, could not get enclosure information" messages. Reviewed-by:
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Hannes Reinecke authored
[mkp: Fixed merge due to patches 20-22 of series being postponed] Reviewed-by:
Christoph Hellwig <hch@lst.de> Signed-off-by:
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Hannes Reinecke authored
If a device needs to be rescanned the device_handler might need to be rechecked, too. So add a 'rescan' callback to the device handler and call it upon scsi_rescan_device(). The rescan callback will be invoked from the Unit Attention handling of ASC/ASCQ 3F 03 (INQUIRY DATA HAS CHANGED). Reviewed-by:
Bart Van Assche <bart.vanassche@sandisk.com> Reviewed-by:
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Hannes Reinecke authored
Sending a 'REPORT TARGET PORT GROUP' command is a costly operation, as the array has to gather information about all ports. So instead of using RTPG to poll for a status update when a port is in transitioning we should be sending a TEST UNIT READY, and wait for the sense code to report success. Reviewed-by:
Ewan Milne <emilne@redhat.com> Reviewed-by:
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Hannes Reinecke authored
When we read in the target port group state we should be updating all affected port groups, otherwise we risk running out of sync. Reviewed-by:
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Hannes Reinecke authored
When we receive a unit attention code of 'ALUA state changed' we should recheck the state, as it might be due to an implicit ALUA state transition. This allows us to return NEEDS_RETRY instead of ADD_TO_MLQUEUE, allowing to terminate the retries after a certain time. At the same time a workqueue item might already be queued, which should be started immediately to avoid any delays. Reviewed-by:
Hannes Reinecke <hare@suse.com> Signed-off-by:
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Hannes Reinecke authored
Add a new blacklist flag BLIST_SYNC_ALUA to instruct the alua device handler to use synchronous command submission for ALUA commands. Reviewed-by:
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Hannes Reinecke authored
Some arrays may only capable of handling one STPG at a time, so this patch adds a singlethreaded workqueue for STPGs to be submitted synchronously. Reviewed-by:
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Hannes Reinecke authored
The current ALUA device_handler has two drawbacks: - We're sending a 'SET TARGET PORT GROUP' command to every LUN, disregarding the fact that several LUNs might be in a port group and will be automatically switched whenever _any_ LUN within that port group receives the command. - Whenever a LUN is in 'transitioning' mode we cannot block I/O to that LUN, instead the controller has to abort the command. This leads to increased traffic across the wire and heavy load on the controller during switchover. With this patch the RTPG handling is moved to a per-portgroup workqueue. This reduces the number of 'REPORT TARGET PORT GROUP' and 'SET TARGET PORT GROUPS' sent to the controller as we're sending them now per port group, and not per device as previously. It also allows us to block I/O to any LUN / port group found to be in 'transitioning' ALUA mode, as the workqueue item will be requeued until the controller moves out of transitioning. Reviewed-by:
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Hannes Reinecke authored
The 'relative port' field is not used, and might get stale when the port group changes. So remove the field altogether. Reviewed-by:
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Hannes Reinecke authored
When the optimize_stpg module option is set we should just set it once during port_group allocation. Doing so allows us to override it later with device specific settings. Reviewed-by:
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Hannes Reinecke authored
revert commit a8e5a2d5 ("[SCSI] scsi_dh_alua: ALUA handler attach should succeed while TPG is transitioning") This reverts commit a8e5a2d5 Obsoleted by the next patch. Reviewed-by:
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Hannes Reinecke authored
Rework alua_check_vpd() to use scsi_vpd_get_tpg() and move the port group selection into the function, too. With that we can simplify alua_initialize() to just call alua_check_tpgs() and alua_check_vpd(); Reviewed-by:
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Hannes Reinecke authored
Use scsi_vpd_lun_id() to assign a unique device identification to the alua port group structure. Reviewed-by:
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Hannes Reinecke authored
The port group needs to be a separate structure as several LUNs might belong to the same group. Reviewed-by:
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Hannes Reinecke authored
The RTPG buffer will only evaluated within alua_rtpg(), so we can allocate it locally there and avoid having to put it into the global structure. Reviewed-by:
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Hannes Reinecke authored
All commands are issued synchronously, so no need to open-code scsi_execute_req_flags() anymore. And we can get rid of the static sense code structure element. scsi_execute_req_flags() will be setting REQ_QUIET and REQ_PREEMPT, but that is perfectly fine as we're evaluating and logging any errors ourselves and we really need to send the command even if the device is quiesced. Reviewed-by:
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Hannes Reinecke authored
If the call to SET TARGET PORT GROUPS fails we have no idea what state the array is left in, so we need to issue a call to REPORT TARGET PORT GROUPS in these cases. Reviewed-by:
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Hannes Reinecke authored
The 'activate_complete' function needs to be executed after stpg has finished, so we can as well execute stpg synchronously and call the function directly. Reviewed-by:
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Hannes Reinecke authored
Separate out SET TARGET PORT GROUP functionality into a separate function alua_stpg(). Reviewed-by:
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Hannes Reinecke authored
Pass in the buffer as a function argument for submit_rtpg(). Reviewed-by:
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Ewan D. Milne authored
mpt_attach() was not checking for the failure to create fw_event_q. Also, iounmap() was not being called in all error cases after ioremap() had been called by mpt_mapresources(). Signed-off-by:
Insu Yun <wuninsu@gmail.com> Reviewed-by:
Tomas Henzl <thenzl@redhat.com> Reviewed-by:
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Sudip Mukherjee authored
We were getting build warning about: drivers/scsi/dpt_i2o.c:183:29: warning: 'dptids' defined but not used dptids[] is only used in the MODULE_DEVICE_TABLE so when MODULE is not defined then dptids[] becomes unused. Signed-off-by:
Sudip Mukherjee <sudip@vectorindia.org> Reviewed-by:
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Suganath prabu Subramani authored
Updating maintainers list for MPT FUSION DRIVERS, broadcom support link and email id. Signed-off-by:
Suganath prabu Subramani <suganath-prabu.subramani@avagotech.com> Signed-off-by:
Chaitra P B <chaitra.basappa@broadcom.com> Signed-off-by:
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Suganath prabu Subramani authored
Deallocate resources before reallocating of the same in retry_allocation path of _base_allocate_memory_pools() Signed-off-by:
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Alan authored
If you feed 32 bytes in then the kstrtoull() doesn't receive a terminated string so will run off the end. Signed-off-by:
Alan Cox <alan@linux.intel.com> Reviewed-by:
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Alan authored
Check the array size *before* dereferencing it with a user provided offset. Signed-off-by:
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Alan authored
We were setting the queue depth correctly, then setting it back to two. If you hit this as a bisection point then please send me an email as it would imply we've been hiding other bugs with this one. Cc: <stable@vger.kernel.org> Signed-off-by:
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Tyrel Datwyler authored
When logging async events the scsi_id, wwpn, and node_name values are used directly from the CRQ struct which are of type __be64. This can be confusing to someone looking through the log on a LE system. Instead byteswap these values to host endian prior to logging. Signed-off-by:
Tyrel Datwyler <tyreld@linux.vnet.ibm.com> Reviewed-by:
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