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* dm-mpath, scsi_dh: don't let dm detach device handlersChristoph Hellwig2015-08-281-74/+22Star
| | | | | | | | | | | | | | While allowing dm-mpath to attach device handlers is a functionality we need for backwards compatibility reason there is no reason to reference count them and detach them if dm-mpath stops using the device for some reason. If the device handler works for the given device it can just stay attached, and we can take the retain_hw_handler codepath. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Mike Snitzer <snitzer@redhat.com> Acked-by: Hannes Reinecke <hare@Suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* aic94xx: Skip reading user settings if flash is not foundHannes Reinecke2015-08-281-2/+3
| | | | | | | | | | | If no user settings are found it's pointless trying to read them from flash. So skip that step. This also fixes a compilation warning about uninitialized variables in aic94xx. Signed-off-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* ipr: Enable SIS pipe commands for SIS-32 devices.Gabriel Krisman Bertazi2015-08-281-1/+1
| | | | | | | | | | | | Remove unnecessary check that disabled SIS pipe commands for SIS-32 devices. This change was sufficient to enable raw mode and send SIS pipe commands for a 57B3 device. Fixes: f8ee25d7d239 ("ipr: AF DASD raw mode implementation in ipr driver") Signed-off-by: Gabriel Krisman Bertazi <krisman@linux.vnet.ibm.com> Reviewed-by: Wen Xiong <wenxiong@linux.vnet.ibm.com> Acked-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* ipr: Inhibit underlength data check for AFDASD in raw mode.Gabriel Krisman Bertazi2015-08-281-1/+5
| | | | | | | | | | | | | Disable underlength error verification based on count of bytes actually transferred for AF DASD devices when SIS pipe mode is enabled. This avoids unexpected underlength errors when issuing some commands in raw mode. Signed-off-by: Gabriel Krisman Bertazi <krisman@linux.vnet.ibm.com> Reviewed-by: Wen Xiong <wenxiong@linux.vnet.ibm.com> Acked-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* mpt3sas : Bump mpt3sas driver version to 9.100.00.00Sreekanth Reddy2015-08-271-2/+2
| | | | | | | Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@avagotech.com> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* mpt3sas: When device is blocked followed by unblock fails, unfreeze the I/OsSreekanth Reddy2015-08-271-14/+75
| | | | | | | | | | | | | | | | | | Issue: When the disks are getting discovered and assigned device handles by the kernel, a device block followed by an unblock (due to broadcast primitives) issued by the driver is interspersed by the kernel changing the state of the device. Therefore the unblock by the driver results in a no operation within the kernel API. To fix this one, the below patch checks the return of the unblock API and performs a block followed by an unblock to unfreeze the block layer's I/O queue. Sufficient checks and prints are also added in the driver to identify this condition caused by the kernel. Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@avagotech.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* mpt3sas: Call dma_mapping_error() API after mapping an address with ↵Sreekanth Reddy2015-08-271-2/+2
| | | | | | | | | | | | | | dma_map_single() API Added dma_mapping_error() API after mapping an address with dma_map_single() API. Otherwise when CONFIG_DMA_API_DEBUG is enabled in the kernel, then it complains about mpt3sas driver not calling dma_mapping_error after mapping an address with dma_map_single Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@avagotech.com> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* mpt3sas: Use alloc_ordered_workqueue() API instead of ↵Sreekanth Reddy2015-08-271-2/+2
| | | | | | | | | | | | | create_singlethread_workqueue() API Created a thread using alloc_ordered_workqueue() API in order to process the works from firmware Work-queue sequentially instead of create_singlethread_workqueue() API. Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@avagotech.com> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Reviewed-by: Joe Lawrence <joe.lawrence@stratus.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* mpt3sas: Added support for customer specific brandingSreekanth Reddy2015-08-272-6/+39
| | | | | | | | | | "VendorID" "DeviceID" "SubsystemVendor ID" "SubsystemDevice ID" Cisco Branding String 0x1000 0x97 0x1137 0x154 Cisco 9300-8i 12Gbps SAS HBA 0x1000 0x97 0x1137 0x155 Cisco 12G Modular SAS Pass through Controller 0x1000 0x97 0x1137 0x156 UCS C3X60 12G SAS Pass through Controller Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@avagotech.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* mpt3sas: Return host busy error status to SML when DMA mapping of scatter ↵Sreekanth Reddy2015-08-271-2/+2
| | | | | | | | | | | | | | | | | | gather list fails for a SCSI command scsi_dma_map API will return a negative value (i.e. -ENOMEM) if DMA mapping of sg lists fails and zero if the sg list in the SCSI cmd is NULL. But drivers doesn't handled sg list DMA mapping failure case properly. So, Updated the code to return host busy error status to SCSI MID Layer(SML), when DMA mapping of scatter gather list fails for a SCSI command. So that SML will retry this SCSI cmd after some time. Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@avagotech.com> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* mpt3sas: Complete the SCSI command with DID_RESET status for log_info value ↵Sreekanth Reddy2015-08-272-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | 0x0x32010081 For any SCSI command, if the driver receives IOC status = SCSI_IOC_TERMINATED and log info = 0x32010081 then that command will be completed with DID_RESET host status. The definition of this log info value is "Virtual IO has failed and has to be retried". Firmware will provide this log info value with IOC Status "SCSI_IOC_TERMINATED", whenever a drive (with is a part of a volume) is pulled and pushed back within some minimal delay. With this log info value, firmware informs the driver to retry the failed IO command infinite times, so to provide some time for the firmware to discover the reinserted drive successfully instated of just retrying failed command for five times(doesn't giving enough time for firmware to complete the drive discovery) and failing the IO permanently even though drive came back successfully. Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@avagotech.com> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* mpt3sas: MPI 2.5 Rev K (2.5.6) specificationsSreekanth Reddy2015-08-272-5/+17
| | | | | | | | | | | | | | | | | | Below are the new changes to MPI 2.5 Rev K(2.5.6) specification and 2.00.35 header files 1) Added a minimum size requirement for target mode command buffers. 2) Added MinMSIxIndex and MaxMSIxIndex fields to CommandBufferPostBase Request. 3) For BIOS Page 1, added SSUTimeout field, and added Product Name String Format bits to the BiosOptions field Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@avagotech.com> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* mpt3sas: Bump mpt3sas driver version to v6.100.00.00Sreekanth Reddy2015-08-271-2/+2
| | | | | | | Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@avagotech.com> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* mpt3sas: Add branding string support for OEM custom HBASreekanth Reddy2015-08-272-0/+45
| | | | | | | | | | | Add the following OEM's branding to the mpt3sas driver. "VendorID" "DeviceID" "SubsystemVendor ID" "SubsystemDevice ID" Cisco Branding String 0x1000 0x97 SVID = 0x1137 0x014C Cisco 9300-8E 12G SAS HBA Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@avagotech.com> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* mpt3sas: Add branding string support for OEM's HBASreekanth Reddy2015-08-272-0/+47
| | | | | | | | | | | | Added the following Dell branding to the mpt3sas driver. "VendorID" "DeviceID" "SubsystemVendor ID" "SubsystemDevice ID" Dell Branding String 0x1000 0x0097 0x1028 0x1F46 DELL 12Gbps HBA Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@avagotech.com> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* mpt3sas: MPI 2.5 Rev J (2.5.5) specification and 2.00.34 header filesSreekanth Reddy2015-08-273-5/+18
| | | | | | | | | | | | | Following is the change set, 1. Added more defines for the BiosOptions field of MPI2_CONFIG_PAGE_BIOS_1. 2. Added MPI2_TOOLBOX_CLEAN_BIT26_PRODUCT_SPECIFIC definition. Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@avagotech.com> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* mpt3sas: Update MPI2 strings to MPI2.5Sreekanth Reddy2015-08-272-3/+1Star
| | | | | | | Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@avagotech.com> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* mpt3sas: Bump mpt3sas Driver version to v5.100.00.00Sreekanth Reddy2015-08-271-2/+2
| | | | | | | Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@avagotech.com> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* mpt3sas: Provides the physical location of sas drivesSreekanth Reddy2015-08-272-39/+203
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This Patch will provide more details of the devices such as slot number, enclosure logical id, enclosure level & connector name in the following scenarios, - When end device is added in the topology, - When the end device is removed from the setup, - When the SCSI mid layer issues TASK ABORT/ DEVICE RESET/ TARGET RESET during error handling, - When any command to the device fails with Sense key Hardware error or Medium error or Unit Attention, - When firmware returns device error or device not ready status for the end device, - When a Predicted fault is detected on an end device. This information can be used by the user to identify the location of the desired drive in the topology. Driver will get these information by reading the sas device page0. Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@avagotech.com> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* mpt3sas: MPI 2.5 Rev I (2.5.4) specifications.Sreekanth Reddy2015-08-273-9/+28
| | | | | | | | | | | | | | | | | | | | | | | | | Update MPI 2.5 Release: MPI 2.5 Rev I (2.5.4) specification and 2.00.33 header files Below is the change set from the MPI specification for I Rev 1) Added Base Enclosure Level bit to the Flags field of Manufacturing Page 7. 2) Updated description of the MaxTargetPortConnectTime field of SAS IO Unit Page 1. 3) Added EnclosureLevel and ConnectorName fields to SAS Device Page 0. Also, added EnclosureLevel and ConnectorName Valid bit to the Flags field. 4) Added EnclosureLevel field to SAS Enclosure Page 0. Also, added EnclosureLevel Valid bit to the Flags field. 5) Added value for BIOS image to HashImageType. Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@avagotech.com> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* mpt3sas: Remove redundancy code while freeing the controller resources.Sreekanth Reddy2015-08-271-25/+32
| | | | | | | Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@avagotech.com> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* mpt3sas: Don't block the drive when drive addition under the control of SMLSreekanth Reddy2015-08-273-1/+28
| | | | | | | | | | | | | | | | | | | | | | | | | During hot-plugging of a disk(having a flaky link), the disk addition stops and any further disk addition or removal doesn't happen on that controller. This is because, when driver receives DELAY_NOT_RESPONDING event for a disk while it is undergoing addition at the SCSI Transport layer, the driver would block the I/O to that disk resulting in a deadlock. i.e the disk addition work couldn't be completed at the SCSI Transport Layer as it can't send any I/Os (such as Inquiry, Report LUNs etc) to the disk as I/Os are blocked to this drive. Also any subsequent device removal (TARGET_NOT_RESPONDING) or link update(RC_PHY_CHANGED) event couldn't be processed as they are in the queue to get processed after disk addition event. Description of Change: Don't block the drive when drive addition is under the control of SML. So that SML won't be blocked of issuing the device dicovery commands (such as Inquiry, Report LUNs etc). Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@avagotech.com> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* mpt3sas: Get IOC_FACTS information using handshake protocol only after HBA ↵Sreekanth Reddy2015-08-271-0/+68
| | | | | | | | | | | | | | | | | | | | | | | card gets into READY or Operational state. Driver initialization fails if driver tries to send IOC facts request message when the IOC is in reset or in a fault state. This patch will make sure that 1.Driver to send IOC facts request message only if HBA is in operational or ready state. 2.If IOC is in fault state, a diagnostic reset would be issued. 3.If IOC is in reset state then driver will wait for 10 seconds to exit out of reset state. If the HBA continues to be in reset state, then the HBA wouldn't be claimed by the driver. Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@avagotech.com> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Reviewed-by: Tomas Henzl <thenzl@redhat.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* mpt3sas: Added Combined Reply Queue feature to extend up-to 96 MSIX vector ↵Sreekanth Reddy2015-08-272-9/+98
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | support In this patch, increased the number of MSIX vector support for SAS3 C0 HBAs to up-to 96. Following are changes that are done in this patch 1. This feature is enabled only for SAS3 C0 and higher revision cards and also only when reply post free queue count is greater than 8. 2. To support this feature 12 SupplementalReplyPostHostIndex system interfaces are used. MSI-X index numbered from 0 to 7 use the first SupplementalReplyPostHostIndex system interface to update its corresponding ReplyPostHostIndex values, MSI-X index numbered from 8 to 15 will use the second SupplementalReplyPostHostIndex system interface and so on. These 12 SuppementalReplyPostHostIndex system interfaces address are saved in the array replyPostRegisterIndex[]. 3. As each SupplementalReplyPostHostIndex register supports 8 MSI-X vectors. So MSIxIndex field in these register must contain a value between 0 and 7. 4. After processing the reply descriptors from a reply post free queues then update the new reply post host index value in ReplyPostHostIndex field and (msix_index mod 8) value in MSIxIndex field of SupplementalReplyPostHostIndex register. The Address of this SupplementalReplyPostHostIndex register is retrived from (msix_index/8)th entry of replyPostRegisterIndex[] array. Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@avagotech.com> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* aic94xx: set an error code on failureDan Carpenter2015-08-271-0/+1
| | | | | | | | | | We recently did some cleanup here and now the static checkers notice that there is a missing error code when ioremap() fails. Let's set it to -ENOMEM. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* storvsc: Set the error code correctly in failure conditionsK. Y. Srinivasan2015-08-271-3/+9
| | | | | | | | | In the function storvsc_channel_init(), error code was not getting set correctly in some of the failure cases. Fix this issue. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* storvsc: Allow write_same when host is windows 10Keith Mange2015-08-271-1/+5
| | | | | | | | | Allow WRITE_SAME for Windows10 and above hosts. Tested-by: Alex Ng <alexng@microsoft.com> Signed-off-by: Keith Mange <keith.mange@microsoft.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* storvsc: use storage protocol version to determine storage capabilitiesKeith Mange2015-08-271-4/+4
| | | | | | | | | | Use storage protocol version instead of vmbus protocol version when determining storage capabilities. Tested-by: Alex Ng <alexng@microsoft.com> Signed-off-by: Keith Mange <keith.mange@microsoft.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* storvsc: use correct defaults for values determined by protocol negotiationKeith Mange2015-08-271-14/+19
| | | | | | | | | | Use correct defaults for values determined by protocol negotiation, instead of resetting them with every scsi controller. Tested-by: Alex Ng <alexng@microsoft.com> Signed-off-by: Keith Mange <keith.mange@microsoft.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* storvsc: Untangle the storage protocol negotiation from the vmbus protocol ↵Keith Mange2015-08-271-22/+86
| | | | | | | | | | | | | | | negotiation. Currently we are making decisions based on vmbus protocol versions that have been negotiated; use storage potocol versions instead. [jejb: fold ARRAY_SIZE conversion suggested by Johannes Thumshirn <jthumshirn@suse.de> make vmstor_protocol static] Tested-by: Alex Ng <alexng@microsoft.com> Signed-off-by: Keith Mange <keith.mange@microsoft.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* storvsc: Use a single value to track protocol versionsKeith Mange2015-08-271-26/+9Star
| | | | | | | | | | Use a single value to track protocol versions to simplify comparisons and to be consistent with vmbus version tracking. Tested-by: Alex Ng <alexng@microsoft.com> Signed-off-by: Keith Mange <keith.mange@microsoft.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* storvsc: Rather than look for sets of specific protocol versions, make ↵Keith Mange2015-08-271-8/+3Star
| | | | | | | | | | | | | decisions based on ranges. Rather than look for sets of specific protocol versions, make decisions based on ranges. This will be safer and require fewer changes going forward as we add more storage protocol versions. Tested-by: Alex Ng <alexng@microsoft.com> Signed-off-by: Keith Mange <keith.mange@microsoft.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* cxlflash: Remove unused variable from queuecommandMatthew R. Ochs2015-08-271-3/+4
| | | | | | | | | | | | | | | The queuecommand routine has a local dev pointer used for the dev_* prints. The two prints that currently exist are tucked under a debug define and thus can be left out. Use the actual location instead of a local to avoid this warning. This patch is intended to be applied after the "CXL Flash Error Recovery and Superpipe" series. Signed-off-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com> Signed-off-by: Manoj N. Kumar <manoj@linux.vnet.ibm.com> Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* cxlflash: shift wrapping bug in afu_link_reset()Dan Carpenter2015-08-271-2/+2
| | | | | | | | | | "port_sel" is a u64 so the shifting should also be a 64 bit shift. Fixes: c21e0bbfc485 ('cxlflash: Base support for IBM CXL Flash Adapter') Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Acked-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* cxlflash: off by one bug in cxlflash_show_port_status()Dan Carpenter2015-08-271-1/+1
| | | | | | | | | The > should be >= or we read one element past the end of the array. Fixes: c21e0bbfc485 ('cxlflash: Base support for IBM CXL Flash Adapter') Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* cxlflash: Virtual LUN supportMatthew R. Ochs2015-08-279-16/+1454
| | | | | | | | | | | | | | Add support for physical LUN segmentation (virtual LUNs) to device driver supporting the IBM CXL Flash adapter. This patch allows user space applications to virtually segment a physical LUN into N virtual LUNs, taking advantage of the translation features provided by this adapter. Signed-off-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com> Signed-off-by: Manoj N. Kumar <manoj@linux.vnet.ibm.com> Reviewed-by: Michael Neuling <mikey@neuling.org> Reviewed-by: Wen Xiong <wenxiong@linux.vnet.ibm.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* cxlflash: Superpipe supportMatthew R. Ochs2015-08-277-4/+2469
| | | | | | | | | | | | | | Add superpipe supporting infrastructure to device driver for the IBM CXL Flash adapter. This patch allows userspace applications to take advantage of the accelerated I/O features that this adapter provides and bypass the traditional filesystem stack. Signed-off-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com> Signed-off-by: Manoj N. Kumar <manoj@linux.vnet.ibm.com> Reviewed-by: Michael Neuling <mikey@neuling.org> Reviewed-by: Wen Xiong <wenxiong@linux.vnet.ibm.com> Reviewed-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* cxlflash: Base error recovery supportMatthew R. Ochs2015-08-275-16/+177
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Introduce support for enhanced I/O error handling. A device state is added to track 3 possible states of the device: Normal - the device is operating normally and is fully operational Limbo - the device is in a reset/recovery scenario and its operational status is paused Failed/terminating - the device has either failed to be reset/recovered or is being terminated (removed); it is no longer operational All operations are allowed when the device is operating normally. When the device transitions to limbo state, I/O must be paused. To help accomplish this, a wait queue is introduced where existing and new threads can wait until the device is no longer in limbo. When coming out of limbo, threads need to check the state and error out gracefully when encountering the failed state. When the device transitions to the failed/terminating state, normal operations are no longer allowed. Only specially designated operations related to graceful cleanup are permitted. Signed-off-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com> Signed-off-by: Manoj N. Kumar <manoj@linux.vnet.ibm.com> Reviewed-by: Daniel Axtens <dja@axtens.net> Reviewed-by: Michael Neuling <mikey@neuling.org> Reviewed-by: Wen Xiong <wenxiong@linux.vnet.ibm.com> Reviewed-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* qla2xxx: Update driver version to 8.07.00.26-kHimanshu Madhani2015-08-271-1/+1
| | | | | | Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com> Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* qla2xxx: Add pci device id 0x2261.Sawan Chandak2015-08-272-3/+15
| | | | | | Signed-off-by: Sawan Chandak <sawan.chandak@qlogic.com> Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* qla2xxx: Fix missing device login retries.Arun Easi2015-08-271-1/+2
| | | | | | | | | | | On certain conditions, login failures will just invoke qla2x00_mark_device_lost() with the intend to do login again; but if login_retry has been set already, that would fail to set the relogin needed flag which is required to wakeup the DPC to retry. Signed-off-by: Arun Easi <arun.easi@qlogic.com> Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* qla2xxx: do not clear slot in outstanding cmd arrayHimanshu Madhani2015-08-271-6/+0Star
| | | | | | Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com> Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* qla2xxx: Remove decrement of sp reference count in abort handler.Chad Dupuis2015-08-271-7/+2Star
| | | | | | | | | Fix for memory leak when command is not found by firmware due to mismatch in sp reference count. Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com> Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* qla2xxx: Add support to show MPI and PEP FW version for ISP27xx.Sawan Chandak2015-08-273-2/+31
| | | | | | Signed-off-by: Sawan Chandak <sawan.chandak@qlogic.com> Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* qla2xxx: Do not reset ISP for error entry with an out of range handle.Chad Dupuis2015-08-271-7/+1Star
| | | | | | | | | | Instead of resetting the adapter wait for the login to timeout and retry. Resetting the adapter can cause extended path recovery times. Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com> Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* qla2xxx: Do not reset adapter if SRB handle is in range.Chad Dupuis2015-08-273-11/+15
| | | | | | | | | | | | If an SRB is NULL but the handle is in range just drop the command instead of also resetting the adapter. If the handle is in range then the command was valid at some point and may have been aborted. Resetting the adapter can lead to extended recovery times in this case. Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com> Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* qla2xxx: Do not crash system for sp ref count zeroHiral Patel2015-08-271-1/+1
| | | | | | | | | | | | Aovid crashing the system in the scenario where firmware just completes the command and it can not find the command during abort mailbox processing. This scenario can lead to sp reference counter being zero. Instead of crashing the system, use WARN_ON to print warning in log file. Signed-off-by: Hiral Patel <hiral.patel@qlogic.com> Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* qla2xxx: Add adapter checks for FAWWN functionality.Saurav Kashyap2015-08-272-14/+17
| | | | | | Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com> Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* qla2xxx: Pause risc before manipulating risc semaphore.Joe Carnuccio2015-08-271-0/+3
| | | | | | Signed-off-by: Joe Carnuccio <joe.carnuccio@qlogic.com> Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* qla2xxx: Use ssdid to gate semaphore manipulation.Joe Carnuccio2015-08-271-2/+2
| | | | | | | | | Execute qla25xx_manipulate_risc_semaphore() only for ssdid 0x0175 and 0x0240. Signed-off-by: Joe Carnuccio <joe.carnuccio@qlogic.com> Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2024-07-11 03:04:08 +0200