- 03 Nov, 2017 16 commits
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Suganath Prabu Subramani authored
1) Used variable __le64/__le32 whichever required in building NVME PRP, and passed to LE Controller. 2) Remove unused functions, And Declared functions as static which are used only in mpt3sas_scsih.c. Signed-off-by:
Chaitra P B <chaitra.basappa@broadcom.com> Signed-off-by:
Suganath Prabu S <suganath-prabu.subramani@broadcom.com> Signed-off-by:
Martin K. Petersen <martin.petersen@oracle.com>
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Suganath Prabu Subramani authored
Check for NVMe drives before enabling or checking tlr. Signed-off-by:
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Suganath Prabu Subramani authored
* Added debug prints for pcie devices in ioctl debug path. Which will be helpful for debugging. * Added PCIe device support for ioctl BTDHMAPPING ioctl. Signed-off-by:
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Suganath Prabu Subramani authored
Added debug information for NVMe/PCIe drives in target rest path Signed-off-by:
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Suganath Prabu Subramani authored
After Controller reset, Scan and add nvme device back to the topology. Signed-off-by:
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Suganath Prabu Subramani authored
Sets nvme device queue depth, name and displays device capabilities Signed-off-by:
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Suganath Prabu Subramani authored
* The controller firmware sends separate events for NVMe devices and PCIe switches similar to existing SAS events. * NVMe device detection, addition and removal are reported by the firmware through PCIe Topology Change list events. * The PCIe device state change events are sent when the firmware detects any abnormal conditions with a NVMe device or switch. * The enumeration event are sent when the firmware starts PCIe device enumeration and stops. * This patch has the code change to handle the events and add/remove NVMe devices in driver's inventory. Signed-off-by:
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Suganath Prabu Subramani authored
The following functions are called in nvme drive remove path: _scsih_pcie_device_remove_by_handle _scsih_pcie_device_remove_from_sml [mkp: clarify commit message] Signed-off-by:
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Suganath Prabu Subramani authored
Below Functions are added in various paths to support NVMe drive addition. _scsih_pcie_add_device _scsih_pcie_device_add _scsih_pcie_device_init_add _scsih_check_pcie_access_status _scsih_pcie_check_device mpt3sas_get_pdev_by_handle mpt3sas_config_get_pcie_device_pg0 mpt3sas_config_get_pcie_device_pg2 Signed-off-by:
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Suganath Prabu Subramani authored
* Mpt3sas driver uses the NVMe Encapsulated Request message to send an NVMe command to an NVMe device attached to the IOC. * Normal I/O commands like reads and writes are passed to the controller as SCSI commands and the controller has the ability to translate the commands to NVMe equivalent. * This encapsulated NVMe command is used by applications to send direct NVMe commands to NVMe drives. Signed-off-by:
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Suganath Prabu Subramani authored
* Added support for translating the SGLs associated with incoming commands either to IEE SGL or NVMe PRPs for NVMe devices. * The hardware translation of IEEE SGL to NVMe PRPs has limitations and if a command cannot be translated by hardware then it will go to firmware and the firmware needs to translate it. This will have a performance impact. To avoid that, the driver proactively checks whether the translation will be done in hardware or not. If not, then driver translates. [mkp: clarified commit message] Signed-off-by:
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Suganath Prabu Subramani authored
1) Added support for probing pcie device and adding NVMe drives to SML and driver's internal list pcie_device_list. 2) Added support for determing NVMe as boot device. 3) Added nvme device support for call back functions scan_finished target_alloc,slave_alloc,target destroy and slave destroy. a) During scan, pcie devices are probed and added to SML to drivers internal list. b) target_alloc & slave alloc API's allocates resources for (MPT3SAS_TARGET & MPT3SAS_DEVICE) private datas and holds information like handle, target_id etc. c) slave_destroy & target_destroy are called when driver unregisters or removes device. Also frees allocated resources and info. Signed-off-by:
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Colin Ian King authored
Trivial fix to spelling mistake in dev_info message Signed-off-by:
Colin Ian King <colin.king@canonical.com> Signed-off-by:
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Cathy Avery authored
When running multipath on a VM if all available paths go down the driver can schedule large amounts of storvsc_remove_lun work items to the same lun. In response to the failing paths typically storvsc responds by taking host->scan_mutex and issuing a TUR per lun. If there has been heavy IO to the failed device all the failed IOs are returned from the host. A remove lun work item is issued per failed IO. If the outstanding TURs have not been completed in a timely manner the scan_mutex is never released or released too late. Consequently the many remove lun work items are not completed as scsi_remove_device also tries to take host->scan_mutex. This results in dragging the VM down and sometimes completely. This patch only allows one remove lun to be issued to a particular lun while it is an instantiated member of the scsi stack. Signed-off-by:
Cathy Avery <cavery@redhat.com> Reviewed-by:
Christoph Hellwig <hch@lst.de> Reviewed-by:
Long Li <longli@microsoft.com> Signed-off-by:
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Yisheng Xie authored
megasas_alloc_cmds is to alloc cmd_list of instance instead of fusion, and fusion is useless in this function. Just remove it. Signed-off-by:
Yisheng Xie <xieyisheng1@huawei.com> Acked-by:
Sumit Saxena <sumit.saxena@broadcom.com> Signed-off-by:
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Petros Koutoupis authored
Updated comment. We are keeping track of maximum number of retries per command via retries/allowed in struct scsi_cmnd. Corrected comment positioning. [mkp: applied by hand] Signed-off-by:
Petros Koutoupis <petros@petroskoutoupis.com> Signed-off-by:
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- 31 Oct, 2017 14 commits
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Douglas Gilbert authored
The scsi_debug driver incorrectly suggests there is an error with the SCSI WRITE SAME command when the number_of_logical_blocks is greater than 1. It will also suggest there is an error when NDOB (no data-out buffer) is set and the number_of_logical_blocks is greater than 0. Both are valid, fix. Signed-off-by:
Douglas Gilbert <dgilbert@interlog.com> Signed-off-by:
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Arvind Yadav authored
Trivial fix to spelling mistakes in 'iscsi_get_host_stats'. Signed-off-by:
Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by:
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Finn Thain authored
The 5380 drivers only support asynchronous transfers and the 5380 controllers only have narrow busses. Hence, the core driver will reject any SDTR and WDTR messages from target devices. Don't log this, it's expected behaviour. Also, fix the off-by-one array indices in the arguments to scmd_printk(). Tested-by:
Stan Johnson <userm57@yahoo.com> Signed-off-by:
Finn Thain <fthain@telegraphics.com.au> Signed-off-by:
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Matthew R. Ochs authored
The cxlflash driver tracks process IDs alongside contexts to validate context ownership. Currently, the process IDs are derived by directly accessing values from the 'current' task pointer. While this method of access is fine for the current process, it is incorrect when the parent process ID is needed as the access requires serialization. To address the incorrect issue and provide a consistent means of deriving the process ID within the cxlflash driver, use the task accessors defined linux/sched.h. Signed-off-by:
Matthew R. Ochs <mrochs@linux.vnet.ibm.com> Signed-off-by:
Uma Krishnan <ukrishn@linux.vnet.ibm.com> Signed-off-by:
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Matthew R. Ochs authored
Currently, all adapters that cxlflash supports must have WWPN VPD keywords to complete configuration. This was required as cards with external FC ports needed to be programmed with WWPNs. Newer supported cards do not have an external FC interface and therefore do not require WWPN. To support backwards compatibility, these devices have included 'dummy' WWPN VPD with WWPN values of zero. This however places a dependency that all future cards have WWPN VPD, which may not always be the case. Allow for cards to not have WWPN, designating which cards are expected to have it in order to configure properly. Signed-off-by:
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Matthew R. Ochs authored
The existing write same routine within the cxlflash driver uses a statically defined value for the maximum write same transfer length. While this is close to the value reflected by the original device that was supported by cxlflash, newer devices are capable of much larger lengths. Supporting what the device is capable of offers substantial performance improvement as the scrub routine within cxlflash operates on 'chunk size' units (256MB with a 4K sector size). Instead of a #define, use the write same maximum length that is stored in the block layer in units of 512 byte sectors. This value is initially determined from the block limits VPD page during device discovery and can also be manipulated from sysfs. As a general cleanup, designate the timeout used when executing the write same command as constant. Signed-off-by:
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Xiaofei Tan authored
Add support for servicing AXI errors handling. We do a host controller reset for such errors. Signed-off-by:
Xiaofei Tan <tanxiaofei@huawei.com> Signed-off-by:
John Garry <john.garry@huawei.com> Signed-off-by:
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Xiaofei Tan authored
Add support for processing AXI bus fatal errors. If AXI bus fatal error happen, do controller reset to recover. Signed-off-by:
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Xiaofei Tan authored
The CQ event is handled in tasklet context, and it could be delayed if the system loading is high. It is possible to run into some problems when executing a host reset when cq_tasklet_vx_hw() is being executed. So, prior to host reset, execute tasklet_kill() to ensure that all CQ tasklets are complete. Besides, as the function hisi_sas_wait_tasklets_done() is added to do tasklet_kill(), this patch refactors some code where tasklet_kill() is used. Signed-off-by:
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Xiang Chen authored
Use completion to wait on ITCT CLR interrupt finishing before processing other things when freeing a device. This is safer than the pre-existing process of polling the register. Signed-off-by:
Xiang Chen <chenxiang66@hisilicon.com> Signed-off-by:
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Xiaofei Tan authored
Add init code of hisi_hba->rst_work for v3 hw. Because v3 hw also need it to recover controller when some hw errors occurs. Signed-off-by:
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Xiaofei Tan authored
Realise get_events() to add DFX feature for v3 hw. Just like v2 hw, We support the following errors: - loss_of_dword_sync_count - invalid_dword_count - phy_reset_problem_count - running_disparity_error_count Signed-off-by:
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Xiaofei Tan authored
Add initialization of register CON_CFG_DRIVER for v3 hw, to limit number of the times of setup connection. Signed-off-by:
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Xiaofei Tan authored
We should check register PHY_STATE when getting the bitmap of a wideport, as, if the PHY is not ready, the value of register PHY_PORT_NUM_MA is not valid. V2 hw has done this check, and v3 hw should do this check too. Signed-off-by:
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- 25 Oct, 2017 10 commits
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Shiju Jose authored
The code to print AXI errors in v2 hw driver is repetitive. This patch condenses the code by looping an array of errors. Also, a formatting error in one_bit_ecc_errors[] and multi_bit_ecc_errors[] is fixed. Signed-off-by:
Shiju Jose <shiju.jose@huawei.com> Signed-off-by:
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Xiaofei Tan authored
The function hisi_sas_slot_task_free() is used to free the slot and do tidy-up of LLDD resources. The LLDD generally should know the state of a slot and decide when to free it, and it should only be done once. For some scenarios, we really don't know the state, like when TMF timeout. In this case, we check task->lldd_task before calling hisi_sas_slot_task_free(). However, we may miss some scenarios when we should also check task->lldd_task, and it is not SMP safe to check task->lldd_task as we don't protect it within spin lock. This patch is to fix this risk of freeing slot twice, as follows: 1. Check task->lldd_task in the hisi_sas_slot_task_free(), and give up freeing of this time if task->lldd_task is NULL. 2. Set slot->buf to NULL after it is freed. Signed-off-by: -
Xiaofei Tan authored
This patch adds a NULL check of task->lldd_task before freeing the slot in SMP path. This is to guard against the scenario of the slot being freed during the from the preceding internal abort. Signed-off-by:
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Xiang Chen authored
When a PHY_FUNC_LINK_RESET is issued, we need to fill the transport identify_frame to SAS controller before the PHYs are enabled. Without this, we may find that if a PHY which belonged to a wideport before the reset may generate a new port id. Signed-off-by:
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Xiang Chen authored
Currently the size of memory we allocate for SATA breakpoint buffer is incorrect. The breakpoint memory size should be as follows: 32 (NCQ tags) * 128 * 2048 (max #devs) = 8MB Currently we only allocate 0.5MB, but get away with it as we never have SATA device index > 128 typically. To conserve precious DMA memory (8MB may not be even available), limit the number of devices per HBA to 1024, which means 4MB of memory required for SATA breakpoint. The 1024 device limit applied to all HW versions. For v3 hw, we need to configure this value. Signed-off-by:
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Xiang Chen authored
When adding/removing slots from device list, we need to lock this operation with hisi_hba lock for safety. This patch adds missing instances of this. Signed-off-by:
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Xiaofei Tan authored
We used spin_lock() to grab hisi_hba.lock in two places where spin_lock_irqsave() should be used, as hisi_hba.lock can be taken in interrupt context. This patch is to fix this. Signed-off-by:
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Xiang Chen authored
When an internal abort times out in hisi_sas_internal_task_abort(), goto the exit label in and not go through the other task status checks. Signed-off-by:
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Xiang Chen authored
We already relocated hisi_sas_get_ncq_tag() into common file main.c, so delete get_ncq_tag_v3_hw() and use hisi_sas_get_ncq_tag() instead. Signed-off-by:
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Jeffy Chen authored
Add generated scsi_devinfo_tbl.c into .gitignore. Fixes: 345e2960 ("scsi: scsi: Export blacklist flags to sysfs") Signed-off-by:
Jeffy Chen <jeffy.chen@rock-chips.com> Reviewed-by:
Hannes Reinecke <hare@suse.com> Signed-off-by:
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