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path: root/drivers/scsi/pm8001/pm8001_sas.h
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2025-01-26Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds
Pull SCSI updates from James Bottomley: "Updates to the usual drivers (ufs, lpfc, fnic, qla2xx, mpi3mr). The major core change is the renaming of the slave_ methods plus a bit of constification. The rest are minor updates and fixes" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (103 commits) scsi: fnic: Propagate SCSI error code from fnic_scsi_drv_init() scsi: fnic: Test for memory allocation failure and return error code scsi: fnic: Return appropriate error code from failure of scsi drv init scsi: fnic: Return appropriate error code for mem alloc failure scsi: fnic: Remove always-true IS_FNIC_FCP_INITIATOR macro scsi: fnic: Fix use of uninitialized value in debug message scsi: fnic: Delete incorrect debugfs error handling scsi: fnic: Remove unnecessary else to fix warning in FDLS FIP scsi: fnic: Remove extern definition from .c files scsi: fnic: Remove unnecessary else and unnecessary break in FDLS scsi: mpi3mr: Fix possible crash when setting up bsg fails scsi: ufs: bsg: Set bsg_queue to NULL after removal scsi: ufs: bsg: Delete bsg_dev when setting up bsg fails scsi: st: Don't set pos_unknown just after device recognition scsi: aic7xxx: Fix build 'aicasm' warning scsi: Revert "scsi: ufs: core: Probe for EXT_IID support" scsi: storvsc: Ratelimit warning logs to prevent VM denial of service scsi: scsi_debug: Constify sdebug_driver_template scsi: documentation: Corrections for struct updates scsi: driver-api: documentation: Change what is added to docbook ...
2024-12-23scsi: replace blk_mq_pci_map_queues with blk_mq_map_hw_queuesDaniel Wagner
Replace all users of blk_mq_pci_map_queues with the more generic blk_mq_map_hw_queues. This in preparation to retire blk_mq_pci_map_queues. Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Reviewed-by: Ming Lei <ming.lei@redhat.com> Reviewed-by: John Garry <john.g.garry@oracle.com> Signed-off-by: Daniel Wagner <wagi@kernel.org> Link: https://lore.kernel.org/r/20241202-refactor-blk-affinity-helpers-v6-5-27211e9c2cd5@kernel.org Signed-off-by: Jens Axboe <axboe@kernel.dk>
2024-12-04scsi: pm80xx: Improve debugging for aborted commandsVishakha Channapattan
Improves the debugging capabilities of the driver by adding more context to debug messages: 1. Introduce a new function to show pending commands. 2. Include the tag number in NCQ EH path debug messages. 3. Add logging for ata_tag along with pm80xx tag to map I/Os aborted with ATA logs. Signed-off-by: Vishakha Channapattan <vishakhavc@google.com> Signed-off-by: Salomon Dushimirimana <salomondush@google.com> Link: https://lore.kernel.org/r/20241126225546.975441-1-salomondush@google.com Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2024-11-06scsi: pm8001: Use module param to set pcs event log severitySalomon Dushimirimana
The pm8001 driver sets pcs event log threshold very high which causes most of the FW log messages to not be captured. Add a module parameter to configure pcs event log severity with 3 (medium severity) as the default. Co-developed-by: Bhavesh Jashnani <bjashnani@google.com> Signed-off-by: Bhavesh Jashnani <bjashnani@google.com> Signed-off-by: Salomon Dushimirimana <salomondush@google.com> Link: https://lore.kernel.org/r/20241016220944.370539-1-salomondush@google.com Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2024-03-25scsi: pm80xx: Add libsas SATA sysfs attributes groupIgor Pylypiv
The added sysfs attributes group enables the configuration of NCQ Priority feature for HBAs that rely on libsas to manage SATA devices. Acked-by: Jack Wang <jinpu.wang@ionos.com> Reviewed-by: John Garry <john.g.garry@oracle.com> Reviewed-by: Damien Le Moal <dlemoal@kernel.org> Reviewed-by: Jason Yan <yanaijie@huawei.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Niklas Cassel <cassel@kernel.org> Signed-off-by: Igor Pylypiv <ipylypiv@google.com> Link: https://lore.kernel.org/r/20240307214418.3812290-4-ipylypiv@google.com Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-09-21scsi: pm8001: Remove PM8001_READ_VPDDamien Le Moal
Remove the macro PM8001_READ_VPD used to define if a controller WWN should be retrieved from the device. Instead, define the better named boolean module parameter "read_wwn" to control this. The code to set a fixed address for a phy device address when read_wwn is set to false is simplified and fixed to avoid sparse warnings. Signed-off-by: Damien Le Moal <dlemoal@kernel.org> Link: https://lore.kernel.org/r/20230911232745.325149-11-dlemoal@kernel.org Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-09-21scsi: pm8001: Remove PM8001_USE_TASKLETDamien Le Moal
Remove the macro PM8001_USE_TASKLET used to conditionally use tasklets for MSI-X interrupts handling and replace it with the boolean module parameter pm8001_use_tasklet. This parameter defaults to true and can be true only if pm8001_use_msix is also true. Code conditionnaly defined with PM8001_USE_TASKLET is modified to instead use the parameter pm8001_use_tasklet. Signed-off-by: Damien Le Moal <dlemoal@kernel.org> Link: https://lore.kernel.org/r/20230911232745.325149-10-dlemoal@kernel.org Acked-by: Jack Wang <jinpu.wang@ionos.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-09-21scsi: pm8001: Remove PM8001_USE_MSIXDamien Le Moal
The pm8001 driver does not compile if PM8001_USE_MSIX is not defined in pm8001_sas.h because various fields and functions conditionally defined are used unconditionally without a "#ifdef PM8001_USE_MSIX" protection. This macro is rather useless anyway and not convenient as diabling MSI-X use requires recompiling the driver. Remove this macro and replace it with the bool module parameter "use_msix" which defaults to true. The use of MSI-X interrupts for an adapter is gated by this module parameter for adapters that actually support MSI-X. The "use_msix" boolean field is added to struct pm8001_hba_info and all code defined depending on PM8001_USE_MSIX is modified to rely on pm8001_hba_info->use_msix instead. Signed-off-by: Damien Le Moal <dlemoal@kernel.org> Link: https://lore.kernel.org/r/20230911232745.325149-9-dlemoal@kernel.org Acked-by: Jack Wang <jinpu.wang@ionos.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-08-21scsi: pm8001: Remove unused declarationsYue Haibing
Commit 4fcf812ca392 ("[SCSI] libsas: export sas_alloc_task()") removed these implementations but not the declarations. Signed-off-by: Yue Haibing <yuehaibing@huawei.com> Link: https://lore.kernel.org/r/20230818124700.49724-1-yuehaibing@huawei.com Reviewed-by: Bart Van Assche <bvanassche@acm.org> Acked-by: Jack Wang <jinpu.wang@ionos.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-05-08scsi: pm80xx: Log some HW events by defaultAkshat Jain
Log the following hw_event logs under EVENT log severity to help debug disk issues: HW_EVENT_LINK_ERR_INVALID_DWORD HW_EVENT_LINK_ERR_DISPARITY_ERROR HW_EVENT_LINK_ERR_CODE_VIOLATION HW_EVENT_LINK_ERR_LOSS_OF_DWORD_SYNCH HW_EVENT_LINK_ERR_PHY_RESET_FAILED HW_EVENT_INBOUND_CRC_ERROR HW_EVENT_PHY_ERROR HW_EVENT_SAS_PHY_UP HW_EVENT_SATA_PHY_UP HW_EVENT_SATA_SPINUP_HOLD HW_EVENT_PHY_DOWN HW_EVENT_PORT_INVALID HW_EVENT_MALFUNCTION HW_EVENT_PORT_RESET_TIMER_TMO HW_EVENT_PORT_RECOVERY_TIMER_TMO HW_EVENT_HARD_RESET_RECEIVED HW_EVENT_ID_FRAME_TIMEOUT HW_EVENT_PORT_RECOVER Signed-off-by: Akshat Jain <akshatzen@google.com> Signed-off-by: Pranav Prasad <pranavpp@google.com> Link: https://lore.kernel.org/r/20230418190101.696345-2-pranavpp@google.com Acked-by: Jack Wang <jinpu.wang@ionos.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-10-22scsi: pm80xx: Remove unused reset_in_progress flag logicIgor Pylypiv
The reset_in_progress flag was never set. Signed-off-by: Igor Pylypiv <ipylypiv@google.com> Link: https://lore.kernel.org/r/20221007230751.309363-1-ipylypiv@google.com Reviewed-by: Andrew Konecki <awkonecki@google.com> Acked-by: Jack Wang <jinpu.wang@ionos.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-10-22scsi: pm8001: Use sas_task_find_rq() for taggingJohn Garry
The request associated with a SCSI command coming from the block layer has a unique tag, so use that when possible for getting a CCB. Unfortunately we don't support reserved commands in the SCSI midlayer yet, so in the interim continue to manage those tags internally (along with tags for private commands). Signed-off-by: John Garry <john.garry@huawei.com> Link: https://lore.kernel.org/r/1666091763-11023-6-git-send-email-john.garry@huawei.com Reviewed-by: Jack Wang <jinpu.wang@ionos.com> Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-10-22scsi: pm8001: Remove pm8001_tag_init()Igor Pylypiv
In commit 5a141315ed7c ("scsi: pm80xx: Increase the number of outstanding I/O supported to 1024") the pm8001_ha->tags allocation was moved into pm8001_init_ccb_tag(). This changed the execution order of allocation. pm8001_tag_init() used to be called after the pm8001_ha->tags allocation and now it is called before the allocation. Before: pm8001_pci_probe() `--> pm8001_pci_alloc() `--> pm8001_alloc() `--> pm8001_ha->tags = kzalloc(...) `--> pm8001_tag_init(pm8001_ha); // OK: tags are allocated After: pm8001_pci_probe() `--> pm8001_pci_alloc() | `--> pm8001_alloc() | `--> pm8001_tag_init(pm8001_ha); // NOK: tags are not allocated | `--> pm8001_init_ccb_tag() `--> pm8001_ha->tags = kzalloc(...) // today it is bitmap_zalloc() Since pm8001_ha->tags_num is zero when pm8001_tag_init() is called it does nothing. Tags memory is allocated with bitmap_zalloc() so there is no need to manually clear each bit with pm8001_tag_free(). Reviewed-by: Changyuan Lyu <changyuanl@google.com> Signed-off-by: Igor Pylypiv <ipylypiv@google.com> Signed-off-by: John Garry <john.garry@huawei.com> Link: https://lore.kernel.org/r/1666091763-11023-5-git-send-email-john.garry@huawei.com Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com> Reviewed-by: Jack Wang <jinpu.wang@ionos.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-10-18scsi: pm8001: Use sas_ata_device_link_abort() to handle NCQ errorsJohn Garry
In commit c6b9ef5779c3 ("[SCSI] pm80xx: NCQ error handling changes") the driver had support added to handle NCQ errors but much of what is done in this handling is duplicated from the libata EH. In that named commit we handle in 2x main steps: a. Issue read log ext10 to examine and clear the errors b. Issue SATA_ABORT all command Indeed, in libata EH, we do similar to above: a. ata_do_eh() -> ata_eh_autopsy() -> ata_eh_link_autopsy() -> ata_eh_analyze_ncq_error() -> ata_eh_read_log_10h() b. ata_do_eh() -> ata_eh_recover() which will issue a device soft reset or hard reset Since there is so much duplication, use sas_ata_device_link_abort() which will abort all pending IOs and kick of ATA EH which will do the steps, above. However we will not follow the advisory to send the SATA_ABORT all command after the autopsy in read log ext10. Indeed, in libsas EH, we already send a per-task SATA_ABORT command, and this is prior to the ATA EH kicking in and issuing the read log ext10 in the recovery process. I judge that this is ok as the SATA_ABORT command does not actually send any protocol on the link to abort I/O on the other side, so would not change any state on the disk (for the read log ext10 command). Signed-off-by: John Garry <john.garry@huawei.com> Link: https://lore.kernel.org/r/1665998435-199946-7-git-send-email-john.garry@huawei.com Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com> Tested-by: Niklas Cassel <niklas.cassel@wdc.com> # pm80xx Acked-by: Jack Wang <jinpu.wang@ionos.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-09-25scsi: pm8001: Replace one-element array with flexible-array memberGustavo A. R. Silva
One-element arrays are deprecated, and we are replacing them with flexible array members instead. So, replace one-element array with flexible-array member in struct fw_control_info. This helps with the ongoing efforts to tighten the FORTIFY_SOURCE routines on memcpy() and help us make progress towards globally enabling -fstrict-flex-arrays=3 [1]. Link: https://github.com/KSPP/linux/issues/79 Link: https://github.com/KSPP/linux/issues/207 Link: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101836 [1] Link: https://lore.kernel.org/r/Yyy31OuBza1FJCXP@work Reviewed-by: Kees Cook <keescook@chromium.org> Acked-by: Jack Wang <jinpu.wang@ionos.com> Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-06-16scsi: pm8001: Expose hardware queues for pm80xxJohn Garry
In commit 05c6c029a44d ("scsi: pm80xx: Increase number of supported queues"), support for 80xx chip was improved by enabling multiple HW queues. In this, like other SCSI MQ HBA drivers at the time, the HW queues were not exposed to upper layer, and instead the driver managed the queues internally. However, this management duplicates blk-mq code. In addition, the HW queue management is sub-optimal for a system where the number of CPUs exceeds the HW queues - this is because queues are selected in a round-robin fashion, when it would be better to make adjacent CPUs submit on the same queue. And finally, the affinity of the completion queue interrupts is not set to mirror the cpu<->HQ queue mapping, which is suboptimal. As such, for when MSIX is supported, expose HW queues to upper layer. We always use queue index #0 for "internal" commands, i.e. anything which does not come from the block layer, so omit this from the affinity spreading. Link: https://lore.kernel.org/r/1654879602-33497-5-git-send-email-john.garry@huawei.com Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-06-16scsi: pm8001: Set up tags before using themJohn Garry
The current code is buggy in that the tags are set up after they are needed in pm80xx_chip_init() -> pm80xx_set_sas_protocol_timer_config(). The tag depth is earlier read in pm80xx_chip_init() -> read_main_config_table(). Add a post init callback to do the pm80xx work which needs to be done after reading the tags. I don't see a better way to do this. Link: https://lore.kernel.org/r/1654879602-33497-3-git-send-email-john.garry@huawei.com Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-03-14scsi: pm8001: Use libsas internal abort supportJohn Garry
New special handling is added for SAS_PROTOCOL_INTERNAL_ABORT proto so that we may use the common queue command API. Link: https://lore.kernel.org/r/1647001432-239276-4-git-send-email-john.garry@huawei.com Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com> Acked-by: Jack Wang <jinpu.wang@ionos.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-02-22scsi: pm8001: Fix pm8001_info() message formatDamien Le Moal
Make the driver messages more readable by adding a space after the message prefix ":" and removing the extra space between function name and line number. Link: https://lore.kernel.org/r/20220220031810.738362-32-damien.lemoal@opensource.wdc.com Reviewed-by: Jack Wang <jinpu.wang@ionos.com> Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-02-22scsi: pm8001: Simplify pm8001_ccb_task_free()Damien Le Moal
The task argument of the pm8001_ccb_task_free() function can be inferred from the ccb argument ccb_task field. So there is no need to have this argument. Likewise, the ccb_index argument is always equal to the ccb tag field and is not needed either. Remove both arguments and update all call sites. The pm8001_ccb_task_free_done() helper is also modified to match this change. Link: https://lore.kernel.org/r/20220220031810.738362-30-damien.lemoal@opensource.wdc.com Reviewed-by: Jack Wang <jinpu.wang@ionos.com> Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-02-22scsi: pm8001: Simplify pm8001_mpi_build_cmd() interfaceDamien Le Moal
There is no need to pass a pointer to a struct inbound_queue_table to pm8001_mpi_build_cmd(). Passing the start index in the inbound queue table of the adapter is enough. This change allows avoiding the declaration of a struct inbound_queue_table pointer (circularQ variables) in many functions, simplifying the code. While at it, blank lines are added i(e.g. after local variable declarations) to make the code more readable. Link: https://lore.kernel.org/r/20220220031810.738362-28-damien.lemoal@opensource.wdc.com Reviewed-by: Jack Wang <jinpu.wang@ionos.com> Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-02-22scsi: pm8001: Introduce ccb alloc/free helpersDamien Le Moal
Introduce the pm8001_ccb_alloc() and pm8001_ccb_free() helpers to replace the typical code patterns: res = pm8001_tag_alloc(pm8001_ha, &ccb_tag); if (res) ... ccb = &pm8001_ha->ccb_info[ccb_tag]; ccb->device = pm8001_ha_dev; ccb->ccb_tag = ccb_tag; ccb->task = task; ccb->n_elem = 0; and ccb->task = NULL; ccb->ccb_tag = PM8001_INVALID_TAG; pm8001_tag_free(pm8001_ha, tag); With the simpler function calls: ccb = pm8001_ccb_alloc(pm8001_ha, pm8001_ha_dev, task); if (!ccb) ... and pm8001_ccb_free(pm8001_ha, ccb); The pm8001_ccb_alloc() helper ensures that all fields of the ccb info structure for the newly allocated tag are all initialized, except the buf_prd field. The pm8001_ccb_free() helper clears the initialized fields and the ccb tag to ensure that iteration over the adapter ccb_info array detects ccbs that are in use. All call site of the pm8001_tag_alloc() function that use a ccb info associated with an allocated tag are converted to use the new helpers. Link: https://lore.kernel.org/r/20220220031810.738362-27-damien.lemoal@opensource.wdc.com Reviewed-by: John Garry <john.garry@huawei.com> Reviewed-by: Jack Wang <jinpu.wang@ionos.com> Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-02-22scsi: pm8001: Fix tag values handlingDamien Le Moal
The function pm8001_tag_alloc() determines free tags using the function find_first_zero_bit() which can return 0 when the first bit of the bitmap being inspected is 0. As such, tag 0 is a valid tag value that should not be dismissed as invalid. Fix the functions pm8001_work_fn(), mpi_sata_completion(), pm8001_mpi_task_abort_resp() and pm8001_open_reject_retry() to not dismiss 0 tags as invalid. The value 0xffffffff is used for invalid tags for unused ccb information structures. Add the macro definition PM8001_INVALID_TAG to define this value. Link: https://lore.kernel.org/r/20220220031810.738362-20-damien.lemoal@opensource.wdc.com Reviewed-by: Jack Wang <jinpu.wang@ionos.com> Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-02-19scsi: libsas: Add sas_abort_task_set()John Garry
Add a generic implementation of abort task set TMF handler, and use in LLDDs. Link: https://lore.kernel.org/r/1645112566-115804-14-git-send-email-john.garry@huawei.com Tested-by: Yihang Li <liyihang6@hisilicon.com> Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-02-19scsi: libsas: Add TMF handler aborted callbackJohn Garry
The hisi_sas and pm8001 TMF handlers have some special processing for when the TMF is aborted, so add a callback and fill it in for those drivers. Link: https://lore.kernel.org/r/1645112566-115804-13-git-send-email-john.garry@huawei.com Tested-by: Yihang Li <liyihang6@hisilicon.com> Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-02-19scsi: libsas: Add TMF handler exec complete callbackJohn Garry
The pm8001 TMF handler has some special processing when the TMF completes, so add a callback and fill it in for the pm8001 driver. Link: https://lore.kernel.org/r/1645112566-115804-12-git-send-email-john.garry@huawei.com Tested-by: Yihang Li <liyihang6@hisilicon.com> Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-02-19scsi: libsas: Add struct sas_tmf_taskJohn Garry
Some of the LLDDs which use libsas have their own definition of a struct to hold TMF info, so add a common struct for libsas. Also add an interim force phy id field for hisi_sas driver, which will be removed once the STP "TMF" code is factored out. Even though some LLDDs (pm8001) use a u32 for the tag, u16 will be adequate, as that named driver only uses tags in range [0, 1024). Link: https://lore.kernel.org/r/1645112566-115804-8-git-send-email-john.garry@huawei.com Tested-by: Yihang Li <liyihang6@hisilicon.com> Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-02-19scsi: libsas: Delete lldd_clear_aca callbackJohn Garry
This callback is never called, so remove support. Link: https://lore.kernel.org/r/1645112566-115804-4-git-send-email-john.garry@huawei.com Tested-by: Yihang Li <liyihang6@hisilicon.com> Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com> Reviewed-by: Jack Wang <jinpu.wang@ionos.com> Reviewed-by: Christoph Hellwig <hch@lst.de> 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>
2022-01-05scsi: pm80xx: Port reset timeout error handling correctionAjish Koshy
Error handling steps were not in sequence as per the programmers manual. Expected sequence: - PHY_DOWN (PORT_IN_RESET) - PORT_RESET_TIMER_TMO - Host aborts pending I/Os - Host deregister the device - Host sends HW_EVENT_PHY_DOWN ACK Previously we were sending HW_EVENT_PHY_DOWN ACK first and then deregister the device. Fix this to use the expected sequence. Link: https://lore.kernel.org/r/20211228111753.10802-1-Ajish.Koshy@microchip.com Signed-off-by: Ajish Koshy <Ajish.Koshy@microchip.com> Signed-off-by: Viswas G <Viswas.G@microchip.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-10-16scsi: pm8001: Switch to attribute groupsBart Van Assche
struct device supports attribute groups directly but does not support struct device_attribute directly. Hence switch to attribute groups. Link: https://lore.kernel.org/r/20211012233558.4066756-36-bvanassche@acm.org Acked-by: Jack Wang <jinpu.wang@ionos.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-09-14scsi: pm80xx: Fix memory leak during rmmodAjish Koshy
Driver failed to release all memory allocated. This would lead to memory leak during driver removal. Properly free memory when the module is removed. Link: https://lore.kernel.org/r/20210906170404.5682-5-Ajish.Koshy@microchip.com Acked-by: Jack Wang <jinpu.wang@ionos.com> Signed-off-by: Ajish Koshy <Ajish.Koshy@microchip.com> Signed-off-by: Viswas G <Viswas.G@microchip.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-09-14scsi: pm80xx: Fix lockup in outbound queue managementAjish Koshy
Commit 1f02beff224e ("scsi: pm80xx: Remove global lock from outbound queue processing") introduced a lock per outbound queue. Prior to that change the driver was using a global lock for all outbound queues. While processing the I/O responses and events the driver takes the outbound queue spinlock and is supposed to release it in pm8001_ccb_task_free_done() before calling command done(). Since the older code was using a global lock, pm8001_ccb_task_free_done() was releasing the global spin lock. The change that split the lock per outbound queue did not consider this and pm8001_ccb_task_free_done() was still releasing the global lock. Link: https://lore.kernel.org/r/20210906170404.5682-3-Ajish.Koshy@microchip.com Fixes: 1f02beff224e ("scsi: pm80xx: Remove global lock from outbound queue processing") Acked-by: Jack Wang <jinpu.wang@ionos.com> Signed-off-by: Ajish Koshy <Ajish.Koshy@microchip.com> Signed-off-by: Viswas G <Viswas.G@microchip.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-09-14scsi: pm80xx: Fix incorrect port value when registering a deviceAjish Koshy
During phyup event, the firmware provides the phy_id and port_id and driver is supposed to use these during device handle registration. Previously the driver was using the port id value from libsas during device handle registration. Since id can be different from the one assigned by firmware, this can lead to wrong device registration and drives not showing up. Use firmware assigned port id during device registration. Link: https://lore.kernel.org/r/20210906170404.5682-2-Ajish.Koshy@microchip.com Acked-by: Jack Wang <jinpu.wang@ionos.com> Signed-off-by: Ajish Koshy <Ajish.Koshy@microchip.com> Signed-off-by: Viswas G <Viswas.G@microchip.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-15scsi: pm80xx: Remove global lock from outbound queue processingViswas G
Introduce spin lock for outbound queue. With this, driver need not acquire HBA global lock for outbound queue processing. Link: https://lore.kernel.org/r/20210415103352.3580-9-Viswas.G@microchip.com Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by: Viswas G <Viswas.G@microchip.com> Signed-off-by: Ruksar Devadi <Ruksar.devadi@microchip.com> Signed-off-by: Ashokkumar N <Ashokkumar.N@microchip.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-15scsi: pm80xx: Completing pending I/O after fatal errorRuksar Devadi
When controller runs into fatal error, I/Os get stuck with no response, handler event is defined to complete the pending I/Os (SAS task and internal task) and also perform the cleanup for the drives. Link: https://lore.kernel.org/r/20210415103352.3580-7-Viswas.G@microchip.com Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by: Ruksar Devadi <Ruksar.devadi@microchip.com> Signed-off-by: Viswas G <Viswas.G@microchip.com> Signed-off-by: Ashokkumar N <Ashokkumar.N@microchip.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-12scsi: pm8001: Clean up white spaceLuo Jiaxing
checkpatch reports the following: ERROR: space prohibited before that ',' (ctx:WxW) +int pm8001_mpi_general_event(struct pm8001_hba_info *pm8001_ha , void *piomb); Remove unnecessary whitespace. Link: https://lore.kernel.org/r/1617886593-36421-2-git-send-email-luojiaxing@huawei.com Acked-by: Jack Wang <jinpu.wang@ionos.com> Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com> Signed-off-by: Jianqin Xie <xiejianqin@hisilicon.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-03-09scsi: pm80xx: Remove list entry from pm8001_ccb_infoIgor Pylypiv
List entry is not used. Link: https://lore.kernel.org/r/20210301181847.2893199-1-ipylypiv@google.com Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by: Igor Pylypiv <ipylypiv@google.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-01-13scsi: pm80xx: Check for fatal errorakshatzen
When the controller runs into a fatal error, commands get stuck due to no response. If the controller is in fatal error state, abort requests issued to the controller get stuck too. Check the controller state for fatal error conditions. Link: https://lore.kernel.org/r/20210109123849.17098-3-Viswas.G@microchip.com Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by: akshatzen <akshatzen@google.com> Signed-off-by: Viswas G <Viswas.G@microchip.com> Signed-off-by: Ruksar Devadi <Ruksar.devadi@microchip.com> Signed-off-by: Radha Ramachandran <radha@google.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-11-30scsi: pm8001: Convert pm8001_printk() to pm8001_info()Joe Perches
Use the more common logging style. [mkp: fixed a few conflicts] Link: https://lore.kernel.org/r/69dc34ff63adfa60b3f203ed2d58143b5692af57.1606192458.git.joe@perches.com Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-11-23scsi: pm8001: Make implicit use of pm8001_ha in pm8001_printk() explicitJoe Perches
Make the pm8001_printk() macro take an explicit HBA instead of assuming the existence of an unspecified pm8001_ha argument. Miscellanea: - Add pm8001_ha to the few uses of pm8001_printk() - Add HBA to the pm8001_dbg macro call to pm8001_printk() Link: https://lore.kernel.org/r/0e17a4c845f15e18f98b346ffb9b039584d21cdd.1605914030.git.joe@perches.com Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-11-23scsi: pm8001: Neaten debug logging macros and usesJoe Perches
Every PM8001_<FOO>_DBG macro uses an internal call to pm8001_printk. Convert all uses of: PM8001_<FOO>_DBG(hba, pm8001_printk(fmt, ...)) to pm8001_dbg(hba, <FOO>, fmt, ...) so the visual complexity of each macro is reduced. The repetitive macro definitions are converted to a single pm8001_dbg and the level is concatenated using PM8001_##level##_LOGGING for the specific level test. Done with coccinelle, checkpatch and a little typing of the new macro definition. Miscellanea: - Coalesce formats - Realign arguments - Add missing terminating newlines to formats - Remove trailing spaces from formats - Change defective loop with printk(KERN_INFO... to emit a 16 byte hex block to %p16h Link: https://lore.kernel.org/r/49f36a93af7752b613d03c89a87078243567fd9a.1605914030.git.joe@perches.com Reported-by: kernel test robot <lkp@intel.com> Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-11-04scsi: pm80xx: Make running_req atomicViswas G
Incorrect value of the running_req was causing the driver unload to be stuck during the SAS lldd_dev_gone notification handling. During SATA I/O completion, for some error status values, the driver schedules the event handler and running_req is decremented from that. However, there are some other error status values (like IO_DS_IN_RECOVERY, IO_XFER_ERR_LAST_PIO_DATAIN_CRC_ERR) where the I/O has already been completed by fw/driver so running_req is not decremented. Also during NCQ error handling, driver itself will initiate READ_LOG_EXT and ABORT_ALL. When libsas/libata initiate READ_LOG_EXT (0x2F), driver increments running_req. This will be completed by the driver in pm80xx_chip_sata_req(), but running_req was not decremented. Link: https://lore.kernel.org/r/20201102165528.26510-3-Viswas.G@microchip.com.com Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by: Viswas G <Viswas.G@microchip.com> Signed-off-by: Ruksar Devadi <Ruksar.devadi@microchip.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-10-07scsi: pm80xx: Driver version updateViswas G
Update driver version from "0.1.39" -> "0.1.40" Link: https://lore.kernel.org/r/20201005145011.23674-5-Viswas.G@microchip.com.com Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by: Viswas G <Viswas.G@microchip.com> Signed-off-by: Ruksar Devadi <Ruksar.devadi@microchip.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-10-07scsi: pm80xx: Increase the number of outstanding I/O supported to 1024Viswas G
The pm80xx driver currently sets the controller queue depth to 256. Hoewver, the controller supports outstanding I/Os up 1024. Increase the number of outstanding I/Os from 256 to 1024. CCBs and tags are allocated according to outstanding I/Os. Also update the can_queue value (max_out_io - PM8001_RESERVE_SLOT) used by the SCSI midlayer. [mkp: fixed zeroday complaint] Link: https://lore.kernel.org/r/20201005145011.23674-4-Viswas.G@microchip.com.com Reported-by: kernel test robot <lkp@intel.com> Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by: Viswas G <Viswas.G@microchip.com> Signed-off-by: Ruksar Devadi <Ruksar.devadi@microchip.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-10-07scsi: pm80xx: Increase number of supported queuesViswas G
Current driver uses fixed number of Inbound and Outbound queues and all of the I/O, TMF and internal requests are submitted through those. A global spin lock is used to control the shared access. This can create a lock contention and it is real bottleneck in the I/O path. To avoid this, the number of supported Inbound and Outbound queues is increased to 64, and the number of queues used is decided based on number of CPU cores online and number of MSI-X vectors allocated. Also add locks per queue instead of using the global lock. Link: https://lore.kernel.org/r/20201005145011.23674-2-Viswas.G@microchip.com.com Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by: Viswas G <Viswas.G@microchip.com> Signed-off-by: Ruksar Devadi <Ruksar.devadi@microchip.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-03-17scsi: pm80xx: Introduce read and write length for IOCTL payload structureViswas G
Removed the common length and introduce read and write length for IOCTL payload structure. [mkp: fixed SoB ordering] Link: https://lore.kernel.org/r/20200316074906.9119-7-deepak.ukey@microchip.com Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by: Viswas G <viswas.g@microchip.com> Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com> Signed-off-by: Radha Ramachandran <radha@google.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-03-17scsi: pm80xx: sysfs attribute for non fatal dumpDeepak Ukey
Added the sysfs attribute for non fatal log so that management utility can get the non fatal dump from driver. The non-fatal error is an error condition or abnormal behavior detected by the host, or detected and reported by the controller to the host.The non-fatal error does not stop the controller firmware and enables it to still respond to host requests. A typical example of a non-fatal error is an I/O timeout or an unusual error notification from the controller. Since the firmware is operational, the error dump information is pushed to host memory (by firmware) upon request from the host. Link: https://lore.kernel.org/r/20200316074906.9119-6-deepak.ukey@microchip.com Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com> Signed-off-by: Viswas G <Viswas.G@microchip.com> Signed-off-by: Radha Ramachandran <radha@google.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-11-19scsi: pm80xx: Modified the logic to collect fatal dumpDeepak Ukey
Added the correct method to collect the fatal dump. Link: https://lore.kernel.org/r/20191114100910.6153-14-deepak.ukey@microchip.com Reported-by: kbuild test robot <lkp@intel.com> Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com> Signed-off-by: Viswas G <Viswas.G@microchip.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-11-19scsi: pm80xx: Tie the interrupt name to the module instanceVikram Auradkar
With MSI-x enabled, the interrupt instances are <prefix><index> where the prefix is fixed for all module instances, making it a little harder to track down what's what. Link: https://lore.kernel.org/r/20191114100910.6153-13-deepak.ukey@microchip.com Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by: Vikram Auradkar <auradkar@google.com> Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com> Signed-off-by: Viswas G <Viswas.G@microchip.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-11-19scsi: pm80xx: Do not request 12G sas speedspeter chang
Occasionally, 6G capable drives fail to train at 6G on links that look good from a signal-integrity perspective. PMC suggests configuring the port to not even expect 12G. Link: https://lore.kernel.org/r/20191114100910.6153-11-deepak.ukey@microchip.com Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by: peter chang <dpf@google.com> Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com> Signed-off-by: Viswas G <Viswas.G@microchip.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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