- 04 Jan, 2018 40 commits
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Quinn Tran authored
DPC thread can stall during switch scan due to slow switch response. This will stall other work element that needs attention. Moving work element processing and relogin logic out of DPC thread and into its own work queue. Signed-off-by:
Quinn Tran <quinn.tran@cavium.com> Signed-off-by:
Himanshu Madhani <himanshu.madhani@cavium.com> Signed-off-by:
Martin K. Petersen <martin.petersen@oracle.com>
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Quinn Tran authored
Replace call to Get Port DataBase MB with PDO_FORCE_ADISC flag with async ADISC command so driver can see ADISC command has error or not. Signed-off-by:
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Quinn Tran authored
This patch adjusts and reallocates fw_dump memory for target mode to save for extended login and exchange offload buffers into dump captured. Signed-off-by:
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Quinn Tran authored
As part of chip reset, all commands from all QPairs are flushed. This patch fixes code to use Q Pair lock for flush instead of using old hardware_lock. Signed-off-by:
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Quinn Tran authored
Max boundary for exchange off load is 32k exchanges. If a system is unable to allocate large memory buffer to support this feature, then driver will reduce the number of exchanges down to a value system can support. Signed-off-by:
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Quinn Tran authored
Current code uses Stop Firmware MB cmd to stop the chip before driver unload. This will leave the laser in its current state. This give the illusion of this adapter is still alive. For 8G & newer adapters, use chip reset to stop the chip and bring down the laser. Signed-off-by:
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Quinn Tran authored
Use IOCB patch to submit Control VP MBX command to reduce bottle-neck for mbx interface. Signed-off-by:
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Quinn Tran authored
when processing iocb in a timeout case, driver was trying to log messages without verifying if the fcport structure could have valid data. This results in a NULL pointer access. Fixes: 726b8548("qla2xxx: Add framework for async fabric discovery") Signed-off-by:
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Julia Lawall authored
hpsa_show_dev_msg prints other information and a newline after the message string, so the message string does not need to include a newline explicitly. Done using Coccinelle. Signed-off-by:
Julia Lawall <Julia.Lawall@lip6.fr> Acked-by:
Don Brace <don.brace@microsemi.com> Signed-off-by:
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Raghava Aditya Renukunta authored
Update driver Version to 50877 Signed-off-by:
Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com> Signed-off-by:
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Raghava Aditya Renukunta authored
Earlier driver would scan throgh all supported buses and targets and add devices that responded. It would add devices that were _hidden_ by the fw. Driver would invalidate commands sent to _hidden_ devices via the AAC_HIDE_DISK check. Since the driver now adds only the devices that are supposed to be exposed, this code can be removed. Signed-off-by:
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Raghava Aditya Renukunta authored
Remove unused rescan variable. Signed-off-by:
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Raghava Aditya Renukunta authored
There is a chance of the driver to be stuck in kdump if drives start acting up in kdump discovery process and the kernel decides to send eh resets, which would prompt rescan to be scheduled. Do not perform a rescan in kdump context, since we do not expect a hotplug event during kdump and all the devices are going to go away anyway. Signed-off-by:
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Raghava Aditya Renukunta authored
Add back the ability to scan for hotplug changes while eh was in progress. Schedule a rescan for a later time in the eh recovery code and wait for eh to complete in the rescan worker. Signed-off-by:
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Raghava Aditya Renukunta authored
If the driver fails to retrieve information from the fw (could happen when the fw is not fully in its senses), the driver does nothing and change is not processed correctly by the driver Schedule host rescan in case of failure. This is only for SAFW, since the information retrieval failure will happen on SAFW devices. Signed-off-by:
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Raghava Aditya Renukunta authored
Driver uses scsi_scan_host to add new devices in the driver init path, which adds all the fw exposed devices. The drivers resorts to queue command checks to block out commands to _hidden_ devices. Use the hotplug handler code to add new devices during driver init and other areas, this is only for safw. For ARC scsi_scan_host will still apply. Signed-off-by:
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Raghava Aditya Renukunta authored
Currently driver will attempt to process hotplug events concurrently based on the FW interrupt. Protect safw update function with a scan mutex. Signed-off-by:
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Raghava Aditya Renukunta authored
The device hotplug events are processed only after retrieving the updated lun information from the fw. Does not make sense to keep them separate. Merge both the hotplug handling and safw adapter setup code into single function. Signed-off-by:
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Raghava Aditya Renukunta authored
Resolve luns checks the if a sdev is already present in the os to figure out if it needs to be removed. Internally the driver exposes HBA on bus 2 even though its bus 1 in the fw. Its mildly confusing. Refactor out the sdev lookup into its function to check if sdev has been added to the kernel or not. Add helper functions to add, remove and put devices based on their fw bus and target number. Signed-off-by:
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Raghava Aditya Renukunta authored
Added macros to loop through the MAX SUPPORTED Buses and Targets. This will make the code a bit easier to read. Signed-off-by:
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Raghava Aditya Renukunta authored
The hotplug handler code is duplicated for hba handling and container handling. Merged function to handle hba and container hot plug events into the resolve luns functions. Added a bunch of helper functions to check the validity of a given target and to check if bus, target is container device. Signed-off-by:
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Raghava Aditya Renukunta authored
Merge aac_get_containers to setup target function, so that information about all the present devices can be retrieved in one shot. Signed-off-by:
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Raghava Aditya Renukunta authored
Add helper function to set queue depth from information retrieved from the bmic phy structure. Signed-off-by:
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Raghava Aditya Renukunta authored
Save the bmic information for each phy, so that it can processed in target setup function. Signed-off-by:
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Raghava Aditya Renukunta authored
Created inline function to retrieve lun info for each device from the phy luns structure. Signed-off-by:
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Raghava Aditya Renukunta authored
Move the function to get phy luns information to the top of function to set target information Signed-off-by:
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Raghava Aditya Renukunta authored
Remove function call to process targets from the report phy luns function and make it a function in its own right. This will help understand the flow of the code. Signed-off-by:
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Raghava Aditya Renukunta authored
Add helper function to setup targets devices and create the base for the upcoming patches Signed-off-by:
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Raghava Aditya Renukunta authored
Rename variables and functions to make bmic identify, report phy luns to make them consistent across code internal existing code bases Signed-off-by:
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Raghava Aditya Renukunta authored
Edit function that retrieves phy lun information to use common bmic function Signed-off-by:
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Raghava Aditya Renukunta authored
safw command submission is duplicated across many functions. Move the safw submission code from bmic identify into its own function for common use Signed-off-by:
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Raghava Aditya Renukunta authored
Ideally driver needs to wait for IO to be submitted or responded to before shutdown. Move code to wait for IO completion into shutdown path Signed-off-by:
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Raghava Aditya Renukunta authored
Refactored the reset_host store function to make consistent across code bases Signed-off-by:
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Raghava Aditya Renukunta authored
It is possible to restart the controller via the use of the reset_host sysfs variable. This does work for controllers that can no longer respond, since driver will attempt to send down a shutdown in this path. Check if the controller is able to receive commands before sending down a shutdown Signed-off-by:
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Raghava Aditya Renukunta authored
Driver would hang when attempting to send reset from the ioctl interface, since it would wait to retrieve the ioctl mutex at send shutdown. Set adapter shutdown and unlock mutex before sending down reset request. Signed-off-by:
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Raghava Aditya Renukunta authored
As part of the recovery process, the drivers removes offline devices ( done by the kernel) and then tries to add them back in the rescan code. Removing the device is like taking a sledgehammer to a nail. Set the device as running if it is marked offline. Signed-off-by:
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Raghava Aditya Renukunta authored
Driver attempts to perform a device scan and device add after coming out of reset. At times when the kdump kernel loads and it tries to perform eh recovery, the device scan hangs since its commands are blocked because of the eh recovery. This should have shown up in normal eh recovery path (Should have been obvious) Remove the code that performs scanning.I can live without the rescanning support in the stable kernels but a hanging kdump/eh recovery needs to be fixed. Fixes: a2d0321d (scsi: aacraid: Reload offlined drives after controller reset) Cc: <stable@vger.kernel.org> Reported-by:
Douglas Miller <dougmill@linux.vnet.ibm.com> Tested-by:
Guilherme G. Piccoli <gpiccoli@linux.vnet.ibm.com> Fixes: a2d0321d (scsi: aacraid: Reload offlined drives after controller reset) Signed-off-by:
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Raghava Aditya Renukunta authored
Check if the adapter can receive abort requests, before sending aborts Signed-off-by:
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Raghava Aditya Renukunta authored
When udev requests for a devices inquiry string, it might create multiple threads causing a race condition on the shared inquiry resource string. Created a buffer with the string for each thread. Cc: <stable@vger.kernel.org> Fixes: 3bc8070f ([SCSI] aacraid: SMC vendor identification) Signed-off-by:
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Randy Dunlap authored
Fix kernel-doc warnings in drivers/scsi/ that are related to iscsi support interfaces. Fixes these kernel-doc warnings: (tested by adding these files to a new target.rst documentation file: WIP) ../drivers/scsi/libiscsi.c:2740: warning: No description found for parameter 'dd_size' ../drivers/scsi/libiscsi.c:2740: warning: No description found for parameter 'id' ../drivers/scsi/libiscsi.c:2961: warning: No description found for parameter 'cls_conn' ../drivers/scsi/iscsi_tcp.c:313: warning: No description found for parameter 'conn' ../drivers/scsi/iscsi_tcp.c:363: warning: No description found for parameter 'conn' ../drivers/scsi/libiscsi_tcp.c:810: warning: No description found for parameter 'tcp_conn' ../drivers/scsi/libiscsi_tcp.c:810: warning: No description found for parameter 'segment' ../drivers/scsi/libiscsi_tcp.c:887: warning: No description found for parameter 'offloaded' ../drivers/scsi/libiscsi_tcp.c:887: warning: No description found for parameter 'status' ../drivers/scsi/libiscsi_tcp.c:887: warning: Excess function parameter 'offload' description in 'iscsi_tcp_recv_skb' ../drivers/scsi/libiscsi_tcp.c:964: warning: Excess function parameter 'conn' description in 'iscsi_tcp_task_init' ../drivers/scsi/libiscsi_tcp.c:964: warning: Excess function parameter 'sc' description in 'iscsi_tcp_task_init' Signed-off-by:
Randy Dunlap <rdunlap@infradead.org> Cc: "Nicholas A. Bellinger" <nab@linux-iscsi.org> Cc: linux-scsi@vger.kernel.org Cc: target-devel@vger.kernel.org Cc: Sagi Grimberg <sagi@grimberg.me> Cc: linux-rdma@vger.kernel.org Cc: "James E.J. Bottomley" <jejb@linux.vnet.ibm.com> Cc: "Martin K. Petersen" <martin.petersen@oracle.com> Signed-off-by:
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