aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/scsi/hisi_sas/hisi_sas.h
Commit message (Collapse)AuthorAgeFilesLines
* scsi: hisi_sas: Keep controller active between ISR of phyup and the event ↵Xiang Chen2021-12-221-0/+1
| | | | | | | | | | | | | | | | | | being processed It is possible that controller may become suspended between processing a phyup interrupt and the event being processed by libsas. As such, we can't ensure the controller is active when processing the phyup event - this may cause the phyup event to be lost or other issues. To avoid any possible issues, add pm_runtime_get_noresume() in phyup interrupt handler and pm_runtime_put_sync() in the work handler exit to ensure that we stay always active. Since we only want to call pm_runtime_get_noresume() for v3 hw, signal this will a new event, HISI_PHYE_PHY_UP_PM. Link: https://lore.kernel.org/r/1639999298-244569-14-git-send-email-chenxiang66@hisilicon.com Acked-by: John Garry <john.garry@huawei.com> Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* scsi: hisi_sas: Pass abort structure for internal abortJohn Garry2021-12-161-0/+5
| | | | | | | | | | | To help factor out code in future, it's useful to know if we're executing an internal abort, so pass a pointer to the structure. The idea is that a NULL pointer means not an internal abort. Link: https://lore.kernel.org/r/1639579061-179473-4-git-send-email-john.garry@huawei.com Reviewed-by: Xiang Chen <chenxiang66@hisilicon.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* scsi: Remove superfluous #include <linux/async.h> directivesBart Van Assche2021-11-291-1/+0
| | | | | | | | | | Remove this include directive from code that does not use any functionality from kernel/async.c. Link: https://lore.kernel.org/r/20211129194609.3466071-13-bvanassche@acm.org Reviewed-by: Daejun Park <daejun7.park@samsung.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* scsi: hisi_sas: Initialise devices in .slave_alloc callbackXiang Chen2021-10-121-0/+1
| | | | | | | | | | | | | Perform driver-specific SCSI device initialization in the designated SCSI midlayer callback instead of relying on the libsas "device found" callback. The SCSI midlayer .slave_alloc interface is called prior to sending any I/O to the device. Link: https://lore.kernel.org/r/1634041588-74824-2-git-send-email-john.garry@huawei.com Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* scsi: hisi_sas: Rename HISI_SAS_{RESET -> RESETTING}_BITLuo Jiaxing2021-09-131-1/+1
| | | | | | | | | | HISI_SAS_RESET_BIT means that the controller is being reset, and so the name is a bit vague. Rename it to HISI_SAS_RESETTING_BIT. Link: https://lore.kernel.org/r/1629799260-120116-4-git-send-email-john.garry@huawei.com Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* scsi: hisi_sas: Speed up error handling when internal abort timeout occursLuo Jiaxing2021-06-091-0/+1
| | | | | | | | | | | | | | | | | | | | | | If an internal task abort timeout occurs, the controller has developed a fault, and needs to be reset to be recovered. When this occurs during error handling, the current policy is to allow error handling to continue, and the inevitable nexus ha reset will handle the required reset. However various steps of error handling need to taken before this happens. These also involve some level of HW interaction, which will also fail with various timeouts. Speed up this process by recording a HW fault bit for an internal abort timeout - when this is set, just automatically error any HW interaction, and essentially go straight to clear nexus ha (to reset the controller). Link: https://lore.kernel.org/r/1623058179-80434-6-git-send-email-john.garry@huawei.com Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* scsi: hisi_sas: Include HZ in timer macrosLuo Jiaxing2021-06-091-2/+2
| | | | | | | | | Include HZ in timer macros to make the code more concise. Link: https://lore.kernel.org/r/1623058179-80434-4-git-send-email-john.garry@huawei.com Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* scsi: hisi_sas: Run I_T nexus resets in parallel for clear nexus resetLuo Jiaxing2021-06-091-0/+1
| | | | | | | | | | | | | | For a clear nexus reset operation, the I_T nexus resets are executed serially for each device. For devices attached through an expander, this may take 2s per device; so, in total, could take a long time. Reduce the total time by running the I_T nexus resets in parallel through async operations. Link: https://lore.kernel.org/r/1623058179-80434-3-git-send-email-john.garry@huawei.com Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* scsi: hisi_sas: Put a limit of link reset retriesLuo Jiaxing2021-06-091-0/+1
| | | | | | | | | | | | | | If an OOB event is received but the phy still fails to come up, a link reset will be issued repeatedly at an interval of 20s until the phy comes up. Set a limit for link reset issue retries to avoid printing the timeout message endlessly. Link: https://lore.kernel.org/r/1623058179-80434-2-git-send-email-john.garry@huawei.com Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* scsi: hisi_sas: Directly snapshot registers when executing a resetJianqin Xie2021-04-121-0/+1
| | | | | | | | | | | | | | | | The debugfs snapshot should be executed before the reset occurs to ensure that the register contents are saved properly. As such, it is incorrect to queue the debugfs dump when running a reset as the reset will occur prior to the snapshot work item is handler. Therefore, directly snapshot registers in the reset work handler. Link: https://lore.kernel.org/r/1617709711-195853-5-git-send-email-john.garry@huawei.com Signed-off-by: Jianqin Xie <xiejianqin@hisilicon.com> Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* scsi: hisi_sas: Delete some unused callbacksLuo Jiaxing2021-04-121-2/+0
| | | | | | | | | | The debugfs code has been relocated to v3 hw driver, so delete unused struct hisi_sas_hw function pointers snapshot_{prepare, restore}. Link: https://lore.kernel.org/r/1617709711-195853-2-git-send-email-john.garry@huawei.com Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* scsi: hisi_sas: Add trace FIFO debugfs supportLuo Jiaxing2021-01-261-0/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The controller provides trace FIFO DFX tool to assist link fault debugging and link optimization. This tool can be helpful when debugging link faults without SAS analyzers. Each PHY has an independent trace FIFO interface. The user can configure the trace FIFO tool of one PHY by using the following six interfaces: signal_sel: select signal group applies to different scenarios. 0x0: linkrate negotiation 0x1: Host 12G TX train 0x2: Disk 12G TX train 0x3: SAS PHY CTRL DFX 0 0x4: SAS PHY CTRL DFX 1 0x5: SAS PCS DFX other: linkrate negotiation dump_mask: The masked hardware status bit will not be updated. dump_mode: determines how to dump data after trigger signal is generated. 0x0: dump forever 0x1: dump 32 data after trigger signal is generated 0x2: no more dump after trigger signal is generated trigger_mode: determines the trigger mode, level or edge. 0x0: dump when trigger signal changed 0x1: dump when trigger signal's level equal to trigger_level 0x2: dump when trigger signal's level different from trigger_level trigger_level: determines the trigger level. trigger_msk: mask trigger signal The user can get 32-byte values from hardware by reading the rd_data. These values consitute the status record of the hardware at different time points. Link: https://lore.kernel.org/r/1611659068-131975-6-git-send-email-john.garry@huawei.com Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* scsi: hisi_sas: Pass gfp_t flags to libsas event notifiersAhmed S. Darwish2021-01-221-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use the new libsas event notifiers API, which requires callers to explicitly pass the gfp_t memory allocation flags. Below are the context analysis for modified functions: => hisi_sas_bytes_dmaed(): Since it is invoked from both process and atomic contexts, let its callers pass the gfp_t flags: * hisi_sas_main.c: ------------------ hisi_sas_phyup_work(): workqueue context -> hisi_sas_bytes_dmaed(..., GFP_KERNEL) hisi_sas_controller_reset_done(): has an msleep() -> hisi_sas_rescan_topology() -> hisi_sas_phy_down() -> hisi_sas_bytes_dmaed(..., GFP_KERNEL) hisi_sas_debug_I_T_nexus_reset(): calls wait_for_completion_timeout() -> hisi_sas_phy_down() -> hisi_sas_bytes_dmaed(..., GFP_KERNEL) * hisi_sas_v1_hw.c: ------------------- int_abnormal_v1_hw(): irq handler -> hisi_sas_phy_down() -> hisi_sas_bytes_dmaed(..., GFP_ATOMIC) * hisi_sas_v[23]_hw.c: ---------------------- int_phy_updown_v[23]_hw(): irq handler -> phy_down_v[23]_hw() -> hisi_sas_phy_down() -> hisi_sas_bytes_dmaed(..., GFP_ATOMIC) => int_bcast_v1_hw() and phy_bcast_v3_hw(): Both are invoked exclusively from irq handlers. Pass GFP_ATOMIC. Link: https://lore.kernel.org/r/20210118100955.1761652-12-a.darwish@linutronix.de Reviewed-by: John Garry <john.garry@huawei.com> Signed-off-by: Ahmed S. Darwish <a.darwish@linutronix.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* Merge branch '5.11/scsi-postmerge' into 5.11/scsi-fixesMartin K. Petersen2021-01-041-0/+4
|\ | | | | | | | | | | | | | | | | | | | | | | | | Merge two commits that had dependencies on other 5.11 trees (the block and the irq trees respectively). - We reverted a megaraid_sas change in 5.10 due to missing block layer plumbing. Now that this is in place, reinstate the change. - The hisi_sas driver had a dependency on a driver core irq change that went in through Thomas' tree. Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * scsi: hisi_sas: Expose HW queues for v2 hwJohn Garry2020-12-211-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As a performance enhancement, make the completion queue interrupts managed. In addition, in commit bf0beec0607d ("blk-mq: drain I/O when all CPUs in a hctx are offline"), CPU hotplug for MQ devices using managed interrupts is made safe. So expose HW queues to blk-mq to take advantage of this. Flag Scsi_host.host_tagset is also set to ensure that the HBA is not sent more commands than it can handle. However the driver still does not use request tag for IPTT as there are many HW bugs means that special rules apply for IPTT allocation. Link: https://lore.kernel.org/r/1606905417-183214-6-git-send-email-john.garry@huawei.com Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* | scsi: hisi_sas: Move debugfs code to v3 hw driverLuo Jiaxing2020-11-301-28/+0
|/ | | | | | | | | | Relocate all the debugfs code for DFX to v3 hw since no other versions support it. Link: https://lore.kernel.org/r/1606207594-196362-4-git-send-email-john.garry@huawei.com Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds2020-10-141-0/+37
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull SCSI updates from James Bottomley: "The usual driver updates (ufs, qla2xxx, tcmu, ibmvfc, lpfc, smartpqi, hisi_sas, qedi, qedf, mpt3sas) and minor bug fixes. There are only three core changes: adding sense codes, cleaning up noretry and adding an option for limitless retries" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (226 commits) scsi: hisi_sas: Recover PHY state according to the status before reset scsi: hisi_sas: Filter out new PHY up events during suspend scsi: hisi_sas: Add device link between SCSI devices and hisi_hba scsi: hisi_sas: Add check for methods _PS0 and _PR0 scsi: hisi_sas: Add controller runtime PM support for v3 hw scsi: hisi_sas: Switch to new framework to support suspend and resume scsi: hisi_sas: Use hisi_hba->cq_nvecs for calling calling synchronize_irq() scsi: qedf: Remove redundant assignment to variable 'rc' scsi: lpfc: Remove unneeded variable 'status' in lpfc_fcp_cpu_map_store() scsi: snic: Convert to use DEFINE_SEQ_ATTRIBUTE macro scsi: qla4xxx: Delete unneeded variable 'status' in qla4xxx_process_ddb_changed scsi: sun_esp: Use module_platform_driver to simplify the code scsi: sun3x_esp: Use module_platform_driver to simplify the code scsi: sni_53c710: Use module_platform_driver to simplify the code scsi: qlogicpti: Use module_platform_driver to simplify the code scsi: mac_esp: Use module_platform_driver to simplify the code scsi: jazz_esp: Use module_platform_driver to simplify the code scsi: mvumi: Fix error return in mvumi_io_attach() scsi: lpfc: Drop nodelist reference on error in lpfc_gen_req() scsi: be2iscsi: Fix a theoretical leak in beiscsi_create_eqs() ...
| * scsi: hisi_sas: Add controller runtime PM support for v3 hwXiang Chen2020-10-061-0/+2
| | | | | | | | | | | | | | | | | | Add controller runtime PM support for v3 hw. Link: https://lore.kernel.org/r/1601649038-25534-4-git-send-email-john.garry@huawei.com Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * scsi: hisi_sas: Add BIST support for fixed code patternLuo Jiaxing2020-09-021-0/+22
| | | | | | | | | | | | | | | | | | | | Through the new debugfs interface the user can select fixed code patterns. Add two new interfaces fixed_code and fixed_code1. Link: https://lore.kernel.org/r/1598958790-232272-7-git-send-email-john.garry@huawei.com Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * scsi: hisi_sas: Add BIST support for phy FFELuo Jiaxing2020-09-021-0/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add BIST support for phy FFE (Feed forward equalizer) setting. The user can configure FFE through the new debugfs interface. FFE is a parameter used for link layer control. It will affect the link quality between the SAS controller and the backplane. In the BIST test, the FFE interface is provided to assist board testers in optimizing link parameters. The modification of the FFE parameter will affect the test after BIST or the normal running of the board. The user should save the initial FFE values and restore them after BIST test is complete. Link: https://lore.kernel.org/r/1598958790-232272-6-git-send-email-john.garry@huawei.com Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* | scsi: hisi_sas: Switch v3 hw to MQJohn Garry2020-10-061-1/+2
|/ | | | | | | | | | Now that the block layer provides a shared tag, we can switch the driver to expose all HW queues. Signed-off-by: John Garry <john.garry@huawei.com> Tested-by: Douglas Gilbert <dgilbert@interlog.com> Acked-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
* scsi: hisi_sas: Rename hisi_sas_cq.pci_irq_maskJohn Garry2020-01-201-1/+1
| | | | | | | | | In future we will want to use hisi_sas_cq.pci_irq_mask for non-pci interrupt masks, so rename to be more general. Link: https://lore.kernel.org/r/1579522957-4393-7-git-send-email-john.garry@huawei.com Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* scsi: hisi_sas: use threaded irq to process CQ interruptsXiang Chen2020-01-201-2/+2
| | | | | | | | | | | | | | | | | | Currently IRQ_EFFECTIVE_AFF_MASK is enabled for ARM_GIC and ARM_GIC3, so it only allows a single target CPU in the affinity mask to process interrupts and also interrupt thread, and the performance of using threaded irq is almost the same as tasklet. But if the config is not enabled, the interrupt thread will be allowed all the CPUs in the affinity mask. At that situation it improves the performance (about 20%). Note: IRQ_EFFECTIVE_AFF_MASK is configured differently for different architecture chip, and it seems to be better to make it be configured easily. Link: https://lore.kernel.org/r/1579522957-4393-2-git-send-email-john.garry@huawei.com Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* scsi: hisi_sas: Record the phy down event in debugfsLuo Jiaxing2019-10-241-0/+1
| | | | | | | | | | | | | | | The number of phy down reflects the quality of the link between SAS controller and disk. In order to allow the user to confirm the link quality of the system, we record the number of phy down for each phy. The user can check the current phy down count by reading the debugfs file corresponding to the specific phy, or clear the phy down count by writing 0 to the debugfs file. Link: https://lore.kernel.org/r/1571926105-74636-19-git-send-email-john.garry@huawei.com Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* scsi: hisi_sas: Add ability to have multiple debugfs dumpsLuo Jiaxing2019-10-241-3/+2
| | | | | | | | | | We use the module parameter debugfs_dump_count to manage the upper limit of the memory block for multiple dumps. Link: https://lore.kernel.org/r/1571926105-74636-17-git-send-email-john.garry@huawei.com Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* scsi: hisi_sas: Add module parameter for debugfs dump countLuo Jiaxing2019-10-241-0/+1
| | | | | | | | | We still only use dump index #0 however. Link: https://lore.kernel.org/r/1571926105-74636-16-git-send-email-john.garry@huawei.com Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* scsi: hisi_sas: Allocate memory for multiple dumps of debugfsLuo Jiaxing2019-10-241-8/+11
| | | | | | | | | | We add multiple dumps for debugfs, but only allocate memory this time and only dump #0. Link: https://lore.kernel.org/r/1571926105-74636-15-git-send-email-john.garry@huawei.com Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* scsi: hisi_sas: Add debugfs file structure for ITCT cacheLuo Jiaxing2019-10-241-1/+5
| | | | | | | | | | | Create a file structure which was used to save the memory address for ITCT cache at debugfs. This structure is bound to the corresponding debugfs file, it can help callback function of debugfs file to get what it needs. Link: https://lore.kernel.org/r/1571926105-74636-14-git-send-email-john.garry@huawei.com Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* scsi: hisi_sas: Add debugfs file structure for IOST cacheLuo Jiaxing2019-10-241-1/+5
| | | | | | | | | | | Create a file structure which was used to save the memory address for IOST cache at debugfs. This structure is bound to the corresponding debugfs file, it can help callback function of debugfs file to get what it needs. Link: https://lore.kernel.org/r/1571926105-74636-13-git-send-email-john.garry@huawei.com Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* scsi: hisi_sas: Add debugfs file structure for ITCTLuo Jiaxing2019-10-241-1/+5
| | | | | | | | | | | Create a file structure which was used to save the memory address for ITCT at debugfs. This structure is bound to the corresponding debugfs file, it can help callback function of debugfs file to get what it needs. Link: https://lore.kernel.org/r/1571926105-74636-12-git-send-email-john.garry@huawei.com Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* scsi: hisi_sas: Add debugfs file structure for IOSTLuo Jiaxing2019-10-241-1/+5
| | | | | | | | | | | Create a file structure which was used to save the memory address for IOST at debugfs. This structure is bound to the corresponding debugfs file, it can help callback function of debugfs file to get what it needs. Link: https://lore.kernel.org/r/1571926105-74636-11-git-send-email-john.garry@huawei.com Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* scsi: hisi_sas: Add debugfs file structure for portLuo Jiaxing2019-10-241-1/+6
| | | | | | | | | | | | Create a file structure which was used to save the memory address and phy pointer for port at debugfs. This structure is bound to the corresponding debugfs file, it can help callback function of debugfs file to get what it need. Link: https://lore.kernel.org/r/1571926105-74636-10-git-send-email-john.garry@huawei.com Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* scsi: hisi_sas: Add debugfs file structure for registersLuo Jiaxing2019-10-241-1/+6
| | | | | | | | | | | | Create a file structure which was used to save the memory address and hisi_hba pointer for REGS at debugfs. This structure is bound to the corresponding debugfs file, it can help callback function of debugfs file to get what it need. Link: https://lore.kernel.org/r/1571926105-74636-9-git-send-email-john.garry@huawei.com Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* scsi: hisi_sas: Add debugfs file structure for DQLuo Jiaxing2019-10-241-1/+6
| | | | | | | | | | | | Create a file structure which was used to save the memory address and DQ pointer for DQ at debugfs. This structure is bound to the corresponding debugfs file, it can help callback function of debugfs file to get what it need. Link: https://lore.kernel.org/r/1571926105-74636-8-git-send-email-john.garry@huawei.com Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* scsi: hisi_sas: Add debugfs file structure for CQLuo Jiaxing2019-10-241-1/+6
| | | | | | | | | | | | Create a file structure which was used to save the memory address and CQ pointer for CQ at debugfs. This structure is bound to the corresponding debugfs file, it can help callback function of debugfs file to get what it need. Link: https://lore.kernel.org/r/1571926105-74636-7-git-send-email-john.garry@huawei.com Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* scsi: hisi_sas: Add timestamp for a debugfs dumpLuo Jiaxing2019-10-241-0/+2
| | | | | | | | | | It's useful to know when the dump occurred, so add a timestamp file for this. Link: https://lore.kernel.org/r/1571926105-74636-6-git-send-email-john.garry@huawei.com Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* scsi: hisi_sas: use wait_for_completion_timeout() when clearing ITCTXiang Chen2019-10-241-2/+3
| | | | | | | | | | | | | | | | | | When injecting 2bit ecc errors, it will cause confusion inside SAS controller which needs host reset to recover it. If a device is gone at the same times inject 2bit ecc errors, we may not receive the ITCT interrupt so it will wait for completion in clear_itct_v3_hw() all the time. And host reset will also not occur because it can't require hisi_hba->sem, so the system will be suspended. To solve the issue, use wait_for_completion_timeout() instead of wait_for_completion(), and also don't mark the gone device as SAS_PHY_UNUSED when device gone. Link: https://lore.kernel.org/r/1571926105-74636-4-git-send-email-john.garry@huawei.com Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* scsi: hisi_sas: Add BIST support for phy loopbackXiang Chen2019-09-101-0/+10
| | | | | | | | | | | | | Add BIST (built in self test) support for phy loopback. Through the new debugfs interface, the user can configure loopback mode/linkrate/phy id/code mode before enabling it. And also user can enable/disable BIST function. Link: https://lore.kernel.org/r/1567774537-20003-13-git-send-email-john.garry@huawei.com Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* scsi: hisi_sas: Remove some unused function argumentsLuo Jiaxing2019-09-101-2/+2
| | | | | | | | | | | | Some function arguments are unused, so remove them. Also move the timeout print in for wait_cmds_complete_timeout_vX_hw() callsites into that same function. Link: https://lore.kernel.org/r/1567774537-20003-11-git-send-email-john.garry@huawei.com Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* scsi: hisi_sas: Remove redundant work declarationXiang Chen2019-09-101-1/+0
| | | | | | | | | Remove redundant work declaration in HISI_SAS_DECLARE_RST_WORK_ON_STACK Link: https://lore.kernel.org/r/1567774537-20003-10-git-send-email-john.garry@huawei.com Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* scsi: hisi_sas: Remove hisi_sas_hw.slot_completeLuo Jiaxing2019-09-101-2/+0
| | | | | | | | | We never call hisi_sas_hw.slot_complete, so remove it. Link: https://lore.kernel.org/r/1567774537-20003-9-git-send-email-john.garry@huawei.com Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* scsi: hisi_sas: Assign NCQ tag for all NCQ commandsXiang Chen2019-09-101-1/+0
| | | | | | | | | | | | | | | | Currently the NCQ tag is only assigned for FPDMA READ and FPDMA WRITE commands, and for other NCQ commands (such as FPDMA SEND), their NCQ tags are set in the delivery command to 0. So for all the NCQ commands, we also need to assign normal NCQ tag for them, so drop the command type check in hisi_sas_get_ncq_tag() [drop hisi_sas_get_ncq_tag() altogether actually], and always use the ATA command NCQ tag when appropriate. Link: https://lore.kernel.org/r/1567774537-20003-8-git-send-email-john.garry@huawei.com Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* scsi: hisi_sas: Snapshot AXI and RAS register at debugfsLuo Jiaxing2019-08-071-2/+10
| | | | | | | | The AXI and RAS register values should also should be snapshot at debugfs. Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* scsi: hisi_sas: Snapshot HW cache of IOST and ITCT at debugfsLuo Jiaxing2019-08-071-0/+17
| | | | | | | | | | | | The value of IOST/ITCT is updated to cache first, and then synchronize to DDR periodically. So the value in IOST/ITCT cache is the latest data and it's important for debugging. So, the HW cache of IOST and ITCT should be snapshot at debugfs. Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* scsi: hisi_sas: Drop hisi_sas_hw.get_free_slotJohn Garry2019-08-071-1/+0
| | | | | | | | | | | | | | | In commit 1273d65f29045 ("scsi: hisi_sas: change queue depth from 512 to 4096"), the depth of each queue is the same as the max IPTT in the system. As such, as long as we have an IPTT allocated, we will have enough space on any delivery queue. All .get_free_slot functions were checking for space on the queue by reading the DQ read pointer. Drop this, and also raise the code into common code, as there is nothing hw specific remaining. Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* scsi: hisi_sas: Make max IPTT count equal for all hw revisionsJohn Garry2019-08-071-2/+4
| | | | | | | | | | | | There is a small optimisation to be had by making the max IPTT the same for all hw revisions, that being we can drop the check for read and write pointer being the same in the get free slot function. Change v1 hw to have max IPTT of 4096 - same as v2 and v3 hw - and drop hisi_sas_hw.max_command_entries. Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds2019-07-111-6/+2
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull SCSI updates from James Bottomley: "This is mostly update of the usual drivers: qla2xxx, hpsa, lpfc, ufs, mpt3sas, ibmvscsi, megaraid_sas, bnx2fc and hisi_sas as well as the removal of the osst driver (I heard from Willem privately that he would like the driver removed because all his test hardware has failed). Plus number of minor changes, spelling fixes and other trivia. The big merge conflict this time around is the SPDX licence tags. Following discussion on linux-next, we believe our version to be more accurate than the one in the tree, so the resolution is to take our version for all the SPDX conflicts" Note on the SPDX license tag conversion conflicts: the SCSI tree had done its own SPDX conversion, which in some cases conflicted with the treewide ones done by Thomas & co. In almost all cases, the conflicts were purely syntactic: the SCSI tree used the old-style SPDX tags ("GPL-2.0" and "GPL-2.0+") while the treewide conversion had used the new-style ones ("GPL-2.0-only" and "GPL-2.0-or-later"). In these cases I picked the new-style one. In a few cases, the SPDX conversion was actually different, though. As explained by James above, and in more detail in a pre-pull-request thread: "The other problem is actually substantive: In the libsas code Luben Tuikov originally specified gpl 2.0 only by dint of stating: * This file is licensed under GPLv2. In all the libsas files, but then muddied the water by quoting GPLv2 verbatim (which includes the or later than language). So for these files Christoph did the conversion to v2 only SPDX tags and Thomas converted to v2 or later tags" So in those cases, where the spdx tag substantially mattered, I took the SCSI tree conversion of it, but then also took the opportunity to turn the old-style "GPL-2.0" into a new-style "GPL-2.0-only" tag. Similarly, when there were whitespace differences or other differences to the comments around the copyright notices, I took the version from the SCSI tree as being the more specific conversion. Finally, in the spdx conversions that had no conflicts (because the treewide ones hadn't been done for those files), I just took the SCSI tree version as-is, even if it was old-style. The old-style conversions are perfectly valid, even if the "-only" and "-or-later" versions are perhaps more descriptive. * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (185 commits) scsi: qla2xxx: move IO flush to the front of NVME rport unregistration scsi: qla2xxx: Fix NVME cmd and LS cmd timeout race condition scsi: qla2xxx: on session delete, return nvme cmd scsi: qla2xxx: Fix kernel crash after disconnecting NVMe devices scsi: megaraid_sas: Update driver version to 07.710.06.00-rc1 scsi: megaraid_sas: Introduce various Aero performance modes scsi: megaraid_sas: Use high IOPS queues based on IO workload scsi: megaraid_sas: Set affinity for high IOPS reply queues scsi: megaraid_sas: Enable coalescing for high IOPS queues scsi: megaraid_sas: Add support for High IOPS queues scsi: megaraid_sas: Add support for MPI toolbox commands scsi: megaraid_sas: Offload Aero RAID5/6 division calculations to driver scsi: megaraid_sas: RAID1 PCI bandwidth limit algorithm is applicable for only Ventura scsi: megaraid_sas: megaraid_sas: Add check for count returned by HOST_DEVICE_LIST DCMD scsi: megaraid_sas: Handle sequence JBOD map failure at driver level scsi: megaraid_sas: Don't send FPIO to RL Bypass queue scsi: megaraid_sas: In probe context, retry IOC INIT once if firmware is in fault scsi: megaraid_sas: Release Mutex lock before OCR in case of DCMD timeout scsi: megaraid_sas: Call disable_irq from process IRQ poll scsi: megaraid_sas: Remove few debug counters from IO path ...
| * scsi: libsas: aic94xx: hisi_sas: mvsas: pm8001: Use dev_is_expander()John Garry2019-06-201-4/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | Many times in libsas, and in LLDDs which use libsas, the check for an expander device is re-implemented or open coded. Use dev_is_expander() instead. We rename this from sas_dev_type_is_expander() to not spill so many lines in referencing. Signed-off-by: John Garry <john.garry@huawei.com> Reviewed-by: Jason Yan <yanaijie@huawei.com> Reviewed-by: Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * scsi: hisi_sas: Reduce HISI_SAS_SGE_PAGE_CNT in sizeJohn Garry2019-06-181-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Macro HISI_SAS_SGE_PAGE_CNT is defined to SG_CHUNK_SIZE, which is 128. This means that sizeof(struct hisi_sas_slot_buf_table) is 4192. This is just over a 4K, which can mean inefficient DMA memory usage (for no PI). Reduce the size of HISI_SAS_SGE_PAGE_CNT to 124 to fit in a 4K page. With this change, we experience no performance hit. Cc: dann frazier <dann.frazier@canonical.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* | treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152Thomas Gleixner2019-05-301-6/+1
|/ | | | | | | | | | | | | | | | | | | | | Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
generated by cgit (git 2.34.1) at 2025-02-26 19:39:25 +0000