- 24 Feb, 2016 40 commits
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Raghava Aditya Renukunta authored
During EEH PCI hotplug activity kernel unloads and loads the driver, causing character device to be unregistered(aac_remove_one).When the driver is loaded back using aac_probe_one the character device needs to be registered again for the AIF management tools to work. Fixed by adding code to register character device in aac_probe_one if it is unregistered in aac_remove_one. Signed-off-by:
Raghava Aditya Renukunta <raghavaaditya.renukunta@pmcs.com> Reviewed-by:
Shane Seymour <shane.seymour@hpe.com> Reviewed-by:
Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by:
Martin K. Petersen <martin.petersen@oracle.com>
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Raghava Aditya Renukunta authored
while driver removal is in progress or PCI shutdown is invoked, driver kills AIF aacraid thread, but IOCTL requests from the management tools re-start AIF thread leading to IOP_RESET. Fixed by setting adapter_shutdown flag when PCI shutdown is invoked. Signed-off-by:
Tomas Henzl <thenzl@redhat.com> Signed-off-by:
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Raghava Aditya Renukunta authored
aac_mutex was used to create protect the ioctl path for only the compat path, it would be make more sense to place mutex in aac_do_ioctl, which is the main ioctl function call that handles all ioctl commands. Created new mutex ioctl_mutex in struct aac_dev to protect switch case in aac_do_ioctl and removed aac_mutex from aac_cfg_ioctl and aac_compat_do_ioctl Signed-off-by:
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Raghava Aditya Renukunta authored
Series 7 does not support PCI hot reset used by EEH. Enabled fundamental reset only for Series 7 Signed-off-by:
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Raghava Aditya Renukunta authored
During EEH recovery number of online CPU's might change thereby changing the number of MSIx vectors. Since each fib is allocated to a vector, changes in the number of vectors causes fib to be sent thru invalid vectors.In addition the correct number of MSIx vectors is not updated in the INIT struct sent to the controller, when it is reinitialized. Fixed by reassigning vectors to fibs based on the updated number of MSIx vectors and updating the INIT structure before sending to controller. Fixes: MSI-X vector calculation for suspend/resume Cc: stable@vger.kernel.org Signed-off-by:
Johannes Thumshirn <jthushirn@suse.de> Signed-off-by:
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Raghava Aditya Renukunta authored
aac_fib_map_free() calls pci_free_consistent() without checking that dev->hw_fib_va is not NULL and dev->max_fib_size is not zero.If they are indeed NULL/0, this will result in a hang as pci_free_consistent() will attempt to invalidate cache for the entire 64-bit address space (which would take a very long time). Fixed by adding a check to make sure that dev->hw_fib_va and dev->max_fib_size are not NULL and 0 respectively. Fixes: 9ad5204d - "[SCSI]aacraid: incorrect dma mapping mask during blinked recover or user initiated reset" Cc: stable@vger.kernel.org Signed-off-by:
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Raghava Aditya Renukunta authored
Added support for PCI EEH (extended error handling). Signed-off-by:
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Raghava Aditya Renukunta authored
The driver utilizes an array of atomic variables to keep track of IO submissions to each vector. To submit an IO multiple threads iterate through the array to find a vector which has empty slots to send an IO. The reading and updating of the variable is not atomic, causing race conditions when a thread uses a full vector to submit an IO. Fixed by mapping each FIB to a vector, the submission path then uses said vector to submit IO thereby removing the possibly of a race condition.The vector assignment is started from 1 since vector 0 is reserved for the use of AIF management FIBS.If the number of MSIx vectors is 1 (MSI or INTx mode) then all the fibs are allocated to vector 0. Fixes: 495c0217 "aacraid: MSI-x support" Cc: stable@vger.kernel.org # v4.1 Signed-off-by:
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Raghava Aditya Renukunta authored
The method to allocate and free FIB's in the present code utilizes spinlocks. Multiple IO's have to wait on the spinlock to acquire or free fibs creating a performance bottleneck. An alternative solution would be to use block layer tags to keep track of the fibs allocated and freed. To this end aac_fib_alloc_tag was created to utilize the blk layer tags to plug into the Fib pool.These functions are used exclusively in the IO path. 8 fibs are reserved for the use of AIF management software and utilize the previous spinlock based implementations. Signed-off-by:
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John Garry authored
Signed-off-by:
John Garry <john.garry@huawei.com> Reviewed-by:
Hannes Reinecke <hare@suse.de> Signed-off-by:
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John Garry authored
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John Garry authored
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John Garry authored
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John Garry authored
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John Garry authored
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John Garry authored
Include code to prep ssp frame and deliver to hardware. Signed-off-by:
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John Garry authored
Also include slot_complete_v2_hw handler Signed-off-by:
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John Garry authored
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John Garry authored
This also includes broadcast handler. Unlike v1 hw, broadcast does not have its own dedicated interrupt. Signed-off-by:
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John Garry authored
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John Garry authored
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John Garry authored
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John Garry authored
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John Garry authored
Add code to initialise the hardware. Support is also added to deal with the "am-max-transmissions" (amt) limitation in hip06 controller #1. This is how many connection requests we can send on the system bus before waiting for a response. Due to chip bus design, controller #1 is limited to 32 amt, while, by design, a controller supports 64. The default value for the nibbles in the relevant registers is 0x40; these need to be programmed with 0x20. Signed-off-by:
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John Garry authored
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John Garry authored
Just add enough to build and init the module. Signed-off-by:
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John Garry authored
Since hisi_sas_itct format is different between v1 and v2 hw, give more general names for some fields. Signed-off-by:
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John Garry authored
Since the error record structure is different for v2 hw, make hisi_sas_err_record opaque and add hisi_sas_err_record_v1. Signed-off-by:
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John Garry authored
Since v2 hw only supports 2048 itct entries, as opposed to 4096 for v1 hw, set the max itct entries to the lower of the two. It is not anticipated that any device with v1 will ever require to connect > 2048 devices. Signed-off-by:
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John Garry authored
Since v2 hardware permits different numbers of commands to v1, set this as configurable in hisi_sas_hw. Signed-off-by:
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John Garry authored
Relocate DEV_IS_EXPANDER to hisi_sas.h as it will be required for v2 hw support. Signed-off-by:
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John Garry authored
Add the dt bindings for HiSi SAS controller v2 HW. The main difference in the controller from dt perspective is interrupts. The v2 controller does not have dedicated fatal and broadcast interrupts - they are multiplexed on the channel interrupt. Each SAS v2 controller can issue upto 64 commands (or connection requests) on the system bus without waiting for a response - this is know as am-max-transmissions. In hip06, sas controller #1 has a limitation that it has to limit am-max-transmissions to 32 - this limitation is due to chip system bus design. It is not anticipated that any future chip incorporating v2 controller will have such a limitation. Signed-off-by:
Rob Herring <robh@kernel.org> Signed-off-by:
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Maurizio Lombardi authored
If the link is not ready, the bnx2fc_eh_abort() function should return FAILED. Signed-off-by:
Maurizio Lombardi <mlombard@redhat.com> Reviewed-by:
Ewan Milne <emilne@redhat.com> Acked-by:
Chad Dupuis <chad.dupuis@qlogic.com> Signed-off-by:
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Jose Castillo authored
This patch adds the information of the different values that can be used in the module parameter 'debug_logging', as it is shown below: $ modinfo bnx2fc [...] parm: debug_logging:Option to enable extended logging, Default is 0 - no logging. 0x01 - SCSI cmd error, cleanup. 0x02 - Session setup, cleanup, etc. 0x04 - lport events, link, mtu, etc. 0x08 - ELS logs. 0x10 - fcoe L2 fame related logs. 0xff - LOG all messages. (int) Signed-off-by:
Jose Castillo <jcastillo@redhat.com> Acked-by:
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Lee Duncan authored
Update the SCSI hosts module to use ida to manage its host_no index instead of an atomic integer. This means that the SCSI host number will now be reclaimable. Use the ida "simple" mechanism, since there should be no need for a separate spin lock current usage. Ida was chosen over idr because the hosts module already has its own instance and locking mechanisms that aren't easily changed. Reviewed-by:
Lee Duncan <lduncan@suse.com> Signed-off-by:
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Sumit Saxena authored
Signed-off-by:
Sumit Saxena <sumit.saxena@avagotech.com> Signed-off-by:
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Sumit Saxena authored
This patch fixes online controller resets on SRIOV-enabled series of Avago controllers. 1) Remove late detection heartbeat. 2) Change in the behavior if the FW found in READY/OPERATIONAL state. Signed-off-by:
Uday Lingala <uday.lingala@avagotech.com> Signed-off-by:
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Sumit Saxena authored
This patch will introduce module-parameter for SCSI command timeout value and fix setting of resetwaittime beyond a value. Signed-off-by:
Kashyap Desai <kashyap.desai@avagotech.com> Signed-off-by:
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Sumit Saxena authored
Optimized MFI adapters' OCR path, particularly megasas_wait_for_outstanding() function. Signed-off-by:
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Sumit Saxena authored
Make instance->adprecovery variable atomic and removes hba_lock spinlock while accessing instance->adprecovery. Signed-off-by:
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