- 04 Jan, 2018 37 commits
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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:
Martin K. Petersen <martin.petersen@oracle.com>
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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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Chaitra P B authored
1. In IO path, setting of "ATA command pending" flag early before device removal, invalid device handle etc., checks causes any new commands to be always returned with SAM_STAT_BUSY and when the driver removes the drive the SML issues SYNC Cache command and that command is always returned with SAM_STAT_BUSY and thus making SYNC Cache command to requeued. 2. If the driver gets an ATA PT command for a SATA drive then the driver set "ATA command pending" flag in device specific data structure not to allow any further commands until the ATA PT command is completed. However, after setting the flag if the driver decides to return the command back to upper layers without actually issuing to the firmware (i.e., returns from qcmd failure return paths) then the corresponding flag is not cleared and this prevents the driver from sending any new commands to the drive. This patch fixes above two issues by setting of "ATA command pending" flag after checking for whether device deleted, invalid device handle, device busy with task management. And by setting "ATA command pending" flag to false in all of the qcmd failure return paths after setting the flag. Signed-off-by:
Chaitra P B <chaitra.basappa@broadcom.com> Signed-off-by:
Suganath Prabu S <suganath-prabu.subramani@broadcom.com> Signed-off-by:
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Colin Ian King authored
Several statements are indented too far, fix these Signed-off-by:
Colin Ian King <colin.king@canonical.com> Signed-off-by:
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Colin Ian King authored
localport is being dereferenced to assign lport and then immediately afterwards localport is being sanity checked to see if it is null. Fix this by only dereferencing localport until after it has been null checked. Detected by CoverityScan, CID#1463038 ("Dereference before null check") Fixes: 3a8cefbfc5ee ("scsi: lpfc: Beef up stat counters for debug") Signed-off-by:Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by:
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James Smart authored
The define names specified 64Bit/128Bit, not 64GBIT/128GBIT. Correct the names. Signed-off-by:
James Smart <james.smart@broadcom.com> Reviewed-by:
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Andy Shevchenko authored
The function sas_parse_addr() could be easily substituted by hex2bin() which is in kernel library code. Cc: Christoph Hellwig <hch@lst.de> Signed-off-by:
Andy Shevchenko <andriy.shevchenko@linux.intel.com> Tested-by:
Xiang Chen <chenxiang66@hisilicon.com> Signed-off-by:
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Rafael David Tinoco authored
If, for any reason, userland shuts down iscsi transport interfaces before proper logouts - like when logging in to LUNs manually, without logging out on server shutdown, or when automated scripts can't umount/logout from logged LUNs - kernel will hang forever on its sd_sync_cache() logic, after issuing the SYNCHRONIZE_CACHE cmd to all still existent paths. PID: 1 TASK: ffff8801a69b8000 CPU: 1 COMMAND: "systemd-shutdow" #0 [ffff8801a69c3a30] __schedule at ffffffff8183e9ee #1 [ffff8801a69c3a80] schedule at ffffffff8183f0d5 #2 [ffff8801a69c3a98] schedule_timeout at ffffffff81842199 #3 [ffff8801a69c3b40] io_schedule_timeout at ffffffff8183e604 #4 [ffff8801a69c3b70] wait_for_completion_io_timeout at ffffffff8183fc6c #5 [ffff8801a69c3bd0] blk_execute_rq at ffffffff813cfe10 #6 [ffff8801a69c3c88] scsi_execute at ffffffff815c3fc7 #7 [ffff8801a69c3cc8] scsi_execute_req_flags at ffffffff815c60fe #8 [ffff8801a69c3d30] sd_sync_cache at ffffffff815d37d7 #9 [ffff8801a69c3da8] sd_shutdown at ffffffff815d3c3c This happens because iscsi_eh_cmd_timed_out(), the transport layer timeout helper, would tell the queue timeout function (scsi_times_out) to reset the request timer over and over, until the session state is back to logged in state. Unfortunately, during server shutdown, this might never happen again. Other option would be "not to handle" the issue in the transport layer. That would trigger the error handler logic, which would also need the session state to be logged in again. Best option, for such case, is to tell upper layers that the command was handled during the transport layer error handler helper, marking it as DID_NO_CONNECT, which will allow completion and inform about the problem. After the session was marked as ISCSI_STATE_FAILED, due to the first timeout during the server shutdown phase, all subsequent cmds will fail to be queued, allowing upper logic to fail faster. Signed-off-by:
Rafael David Tinoco <rafael.tinoco@canonical.com> Reviewed-by:
Lee Duncan <lduncan@suse.com> Signed-off-by:
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- 21 Dec, 2017 3 commits
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James Smart authored
Prior patch mixed up what argument in the macro was what, so min value was placed as the "default" argument, and the default value was placed as the "min" argument. Thus, when the default was applied, it looked like the default was smaller than the allowed min. Swap argument postions to correct. [mkp: fixed checkpatch warning] Signed-off-by:
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Himanshu Madhani authored
This patch fixes following warnings reported by smatch: drivers/scsi/qla2xxx/qla_mid.c:586 qla25xx_delete_req_que() error: we previously assumed 'req' could be null (see line 580) drivers/scsi/qla2xxx/qla_mid.c:602 qla25xx_delete_rsp_que() error: we previously assumed 'rsp' could be null (see line 596) Fixes: 7867b98d ("scsi: qla2xxx: Fix memory leak in dual/target mode") Reported-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
Himanshu Madhani <himanshu.madhani@cavium.com> Signed-off-by:
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Jia-Ju Bai authored
The driver may sleep under a spinlock. The function call path is: qedi_cpu_offline (acquire the spinlock) qedi_fp_process_cqes qedi_mtask_completion qedi_process_tmf_resp kzalloc(GFP_KERNEL) --> may sleep To fix it, GFP_KERNEL is replaced with GFP_ATOMIC. This bug is found by my static analysis tool(DSAC) and checked by my code review. Signed-off-by:Jia-Ju Bai <baijiaju1990@gmail.com> Acked-by:
Manish Rangankar <Manish.Rangankar@cavium.com> Signed-off-by:
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