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| * scsi: qla2xxx: Remove an unused functionBart Van Assche2020-05-261-41/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This was detected by building the qla2xxx driver with clang. See also commit a9083016a531 ("[SCSI] qla2xxx: Add ISP82XX support"). Link: https://lore.kernel.org/r/20200520040738.1017-1-bvanassche@acm.org Cc: Arun Easi <aeasi@marvell.com> Cc: Nilesh Javali <njavali@marvell.com> Cc: Himanshu Madhani <himanshu.madhani@oracle.com> Cc: Hannes Reinecke <hare@suse.de> Cc: Daniel Wagner <dwagner@suse.de> Cc: Martin Wilck <mwilck@suse.com> Cc: Roman Bolshakov <r.bolshakov@yadro.com> Reviewed-by: Roman Bolshakov <r.bolshakov@yadro.com> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Reviewed-by: Daniel Wagner <dwagner@suse.de> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * scsi: iscsi: Register sysfs for iscsi workqueueBob Liu2020-05-262-2/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | This patch enables setting cpu affinity through "cpumask" for iscsi workqueues (iscsi_q_xx and iscsi_eh), so as to get performance isolation. The max number of active worker was changed form 1 to 2, because "cpumask" of ordered workqueue isn't allowed to change. Link: https://lore.kernel.org/r/20200505011908.15538-1-bob.liu@oracle.com Reviewed-by: Lee Duncan <lduncan@suse.com> Signed-off-by: Bob Liu <bob.liu@oracle.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * scsi: scsi_debug: Parser tables and code interactionDouglas Gilbert2020-05-191-50/+63
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch is in response to a static analyser report from Dan Carpenter titled: "[bug report] scsi: scsi_debug: Add per_host_store option". This code may not clear the static analyzer reports, but may shed light on why they occur. Amongst other things this driver has a table driven SCSI command parser which also involves some C code. There are some invariants between the table entries and the corresponding C code (i.e. the resp_*() functions) that, if broken, may lead to a NULL dereference. And the report is valid, at least in the case of the PRE-FETCH command. Alas, that is not one of the cases that the static analyzer reported. In this particular corner case: when the fake_rw flag is set and the table entry for a "store"-accessing command does not have the required F_FAKE_RW flag set, do the following. Call BUG_ON() in the devip2sip() very close to a comment block explaining why it was called and how to fix it. checkpatch.pl complains about the BUG_ON() but there is no reasonable remedial action that can be taken at run time. This change allows the code reported by the static analyzer to be simplified. Comments were also added to the table flags (e.g. F_FAKE_RW) so developers who add commands might be more inclined to use them (properly). Link: https://lore.kernel.org/r/20200513013943.25285-1-dgilbert@interlog.com Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Douglas Gilbert <dgilbert@interlog.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * scsi: core: Refactor scsi_mq_setup_tags functionYe Bin2020-05-191-11/+12
| | | | | | | | | | | | | | | | | | | | shost->tag_set is used too many times, introduce temporary parameter tag_set instead of &shost->tag_set. Link: https://lore.kernel.org/r/20200518074732.39679-1-yebin10@huawei.com Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Ye Bin <yebin10@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * scsi: core: Fix incorrect usage of shost_for_each_deviceYe Bin2020-05-192-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | shost_for_each_device(sdev, shost) \ for ((sdev) = __scsi_iterate_devices((shost), NULL); \ (sdev); \ (sdev) = __scsi_iterate_devices((shost), (sdev))) When terminating shost_for_each_device() iteration with break or return, scsi_device_put() should be used to prevent stale scsi device references from being left behind. Link: https://lore.kernel.org/r/20200518074420.39275-1-yebin10@huawei.com Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Ye Bin <yebin10@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * scsi: qla2xxx: Fix endianness annotations in source filesBart Van Assche2020-05-1914-319/+329
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix all endianness complaints reported by sparse (C=2) without affecting the behavior of the code on little endian CPUs. Link: https://lore.kernel.org/r/20200518211712.11395-16-bvanassche@acm.org Cc: Nilesh Javali <njavali@marvell.com> Cc: Quinn Tran <qutran@marvell.com> Cc: Martin Wilck <mwilck@suse.com> Cc: Daniel Wagner <dwagner@suse.de> Cc: Roman Bolshakov <r.bolshakov@yadro.com> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Daniel Wagner <dwagner@suse.de> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * scsi: qla2xxx: Fix endianness annotations in header filesBart Van Assche2020-05-199-1100/+1100
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Annotate members of FC protocol and firmware dump data structures as big endian. Annotate members of RISC control structures as little endian. Annotate mailbox registers as little endian. Annotate the mb[] arrays as CPU-endian because communication of the mb[] values with the hardware happens through the readw() and writew() functions. readw() converts from __le16 to u16 and writew() converts from u16 to __le16. Annotate 'handles' as CPU-endian because for the firmware these are opaque values. Link: https://lore.kernel.org/r/20200518211712.11395-15-bvanassche@acm.org CC: Hannes Reinecke <hare@suse.de> Cc: Nilesh Javali <njavali@marvell.com> Cc: Quinn Tran <qutran@marvell.com> Cc: Martin Wilck <mwilck@suse.com> Cc: Roman Bolshakov <r.bolshakov@yadro.com> Reviewed-by: Daniel Wagner <dwagner@suse.de> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * scsi: qla2xxx: Use make_handle() instead of open-coding itBart Van Assche2020-05-191-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | Link: https://lore.kernel.org/r/20200518211712.11395-14-bvanassche@acm.org Cc: Arun Easi <aeasi@marvell.com> Cc: Nilesh Javali <njavali@marvell.com> Cc: Martin Wilck <mwilck@suse.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Daniel Wagner <dwagner@suse.de> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Reviewed-by: Roman Bolshakov <r.bolshakov@yadro.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * scsi: qla2xxx: Cast explicitly to uint16_t / uint32_tBart Van Assche2020-05-1910-39/+39
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Casting a pointer to void * and relying on an implicit cast from void * to uint16_t or uint32_t suppresses sparse warnings about endianness. Hence cast explicitly to uint16_t and uint32_t. Additionally, remove superfluous void * casts. Link: https://lore.kernel.org/r/20200518211712.11395-13-bvanassche@acm.org Cc: Arun Easi <aeasi@marvell.com> Cc: Nilesh Javali <njavali@marvell.com> Cc: Daniel Wagner <dwagner@suse.de> Cc: Himanshu Madhani <himanshu.madhani@oracle.com> Cc: Martin Wilck <mwilck@suse.com> Cc: Roman Bolshakov <r.bolshakov@yadro.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Daniel Wagner <dwagner@suse.de> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * scsi: qla2xxx: Change {RD,WRT}_REG_*() function names from upper case into ↵Bart Van Assche2020-05-1916-791/+790
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | lower case This was suggested by Daniel Wagner. Link: https://lore.kernel.org/r/20200518211712.11395-12-bvanassche@acm.org Cc: Nilesh Javali <njavali@marvell.com> Cc: Quinn Tran <qutran@marvell.com> Cc: Martin Wilck <mwilck@suse.com> Cc: Roman Bolshakov <r.bolshakov@yadro.com> Reviewed-by: Daniel Wagner <dwagner@suse.de> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Reviewed-by: Arun Easi <aeasi@marvell.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * scsi: qla2xxx: Fix the code that reads from mailbox registersBart Van Assche2020-05-198-32/+67
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make the MMIO accessors strongly typed such that the compiler checks whether the accessor function is used that matches the register width. Fix those MMIO accesses where another number of bits was read or written than the size of the register. Link: https://lore.kernel.org/r/20200518211712.11395-11-bvanassche@acm.org Cc: Nilesh Javali <njavali@marvell.com> Cc: Quinn Tran <qutran@marvell.com> Cc: Martin Wilck <mwilck@suse.com> Cc: Roman Bolshakov <r.bolshakov@yadro.com> Reviewed-by: Daniel Wagner <dwagner@suse.de> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * scsi: qla2xxx: Use register names instead of register offsetsBart Van Assche2020-05-191-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make qla27xx_write_remote_reg() easier to read by using register names instead of register offsets. The 'pahole' tool has been used to convert register offsets into register names. See also commit cbb01c2f2f63 ("scsi: qla2xxx: Fix MPI failure AEN (8200) handling"). Link: https://lore.kernel.org/r/20200518211712.11395-10-bvanassche@acm.org Cc: Arun Easi <aeasi@marvell.com> Cc: Nilesh Javali <njavali@marvell.com> Cc: Martin Wilck <mwilck@suse.com> Cc: Roman Bolshakov <r.bolshakov@yadro.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Daniel Wagner <dwagner@suse.de> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * scsi: qla2xxx: Change two hardcoded constants into offsetof() / sizeof() ↵Bart Van Assche2020-05-192-3/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | expressions This patch does not change any functionality. Link: https://lore.kernel.org/r/20200518211712.11395-9-bvanassche@acm.org Cc: Nilesh Javali <njavali@marvell.com> Cc: Quinn Tran <qutran@marvell.com> Cc: Martin Wilck <mwilck@suse.com> Cc: Roman Bolshakov <r.bolshakov@yadro.com> Reviewed-by: Daniel Wagner <dwagner@suse.de> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Arun Easi <aeasi@marvell.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * scsi: qla2xxx: Increase the size of struct qla_fcp_prio_cfg to FCP_PRIO_CFG_SIZEBart Van Assche2020-05-192-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes the following Coverity complaint without changing any functionality: CID 337793 (#1 of 1): Wrong size argument (SIZEOF_MISMATCH) suspicious_sizeof: Passing argument ha->fcp_prio_cfg of type struct qla_fcp_prio_cfg * and argument 32768UL to function memset is suspicious because a multiple of sizeof (struct qla_fcp_prio_cfg) /*48*/ is expected. memset(ha->fcp_prio_cfg, 0, FCP_PRIO_CFG_SIZE); Link: https://lore.kernel.org/r/20200518211712.11395-8-bvanassche@acm.org Cc: Nilesh Javali <njavali@marvell.com> Cc: Quinn Tran <qutran@marvell.com> Cc: Martin Wilck <mwilck@suse.com> Cc: Roman Bolshakov <r.bolshakov@yadro.com> Reviewed-by: Daniel Wagner <dwagner@suse.de> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * scsi: qla2xxx: Make a gap in struct qla2xxx_offld_chain explicitBart Van Assche2020-05-191-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch makes struct qla2xxx_offld_chain compatible with ARCH=i386. Link: https://lore.kernel.org/r/20200518211712.11395-7-bvanassche@acm.org Cc: Nilesh Javali <njavali@marvell.com> Cc: Quinn Tran <qutran@marvell.com> Cc: Martin Wilck <mwilck@suse.com> Cc: Roman Bolshakov <r.bolshakov@yadro.com> Reviewed-by: Daniel Wagner <dwagner@suse.de> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Arun Easi <aeasi@marvell.com> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * scsi: qla2xxx: Add more BUILD_BUG_ON() statementsBart Van Assche2020-05-192-0/+72
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Before fixing the endianness annotations in data structures, make the compiler verify the size of FC protocol and firmware data structures. Link: https://lore.kernel.org/r/20200518211712.11395-6-bvanassche@acm.org Cc: Nilesh Javali <njavali@marvell.com> Cc: Quinn Tran <qutran@marvell.com> Cc: Martin Wilck <mwilck@suse.com> Cc: Roman Bolshakov <r.bolshakov@yadro.com> Reviewed-by: Daniel Wagner <dwagner@suse.de> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * scsi: qla2xxx: Sort BUILD_BUG_ON() statements alphabeticallyBart Van Assche2020-05-191-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Before adding more BUILD_BUG_ON() statements, sort the existing statements alphabetically. Link: https://lore.kernel.org/r/20200518211712.11395-5-bvanassche@acm.org Cc: Nilesh Javali <njavali@marvell.com> Cc: Quinn Tran <qutran@marvell.com> Cc: Martin Wilck <mwilck@suse.com> Cc: Roman Bolshakov <r.bolshakov@yadro.com> Reviewed-by: Daniel Wagner <dwagner@suse.de> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Arun Easi <aeasi@marvell.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * scsi: qla2xxx: Simplify the functions for dumping firmwareBart Van Assche2020-05-1911-156/+71
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Instead of passing an argument to the firmware dumping functions that tells these functions whether or not to obtain the hardware lock, obtain that lock before calling these functions. This patch fixes the following recently introduced C=2 build error: CHECK drivers/scsi/qla2xxx/qla_tmpl.c drivers/scsi/qla2xxx/qla_tmpl.c:1133:1: error: Expected ; at end of statement drivers/scsi/qla2xxx/qla_tmpl.c:1133:1: error: got } drivers/scsi/qla2xxx/qla_tmpl.h:247:0: error: Expected } at end of function drivers/scsi/qla2xxx/qla_tmpl.h:247:0: error: got end-of-input Link: https://lore.kernel.org/r/20200518211712.11395-4-bvanassche@acm.org Fixes: cbb01c2f2f63 ("scsi: qla2xxx: Fix MPI failure AEN (8200) handling") Cc: Arun Easi <aeasi@marvell.com> Cc: Nilesh Javali <njavali@marvell.com> Cc: Himanshu Madhani <himanshu.madhani@oracle.com> Cc: Martin Wilck <mwilck@suse.com> Cc: Roman Bolshakov <r.bolshakov@yadro.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Daniel Wagner <dwagner@suse.de> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * scsi: qla2xxx: Fix spelling of a variable nameBart Van Assche2020-05-192-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Change "offet" into "offset" in a variable name. Link: https://lore.kernel.org/r/20200518211712.11395-2-bvanassche@acm.org Cc: Nilesh Javali <njavali@marvell.com> Cc: Quinn Tran <qutran@marvell.com> Cc: Martin Wilck <mwilck@suse.com> Reviewed-by: Daniel Wagner <dwagner@suse.de> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Arun Easi <aeasi@marvell.com> Reviewed-by: Roman Bolshakov <r.bolshakov@yadro.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * scsi: hisi_sas: Stop returning error code from slot_complete_vX_hw()John Garry2020-05-193-28/+16
| | | | | | | | | | | | | | | | The error codes are never checked, stop returning them. Link: https://lore.kernel.org/r/1589552025-165012-5-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: Add SAS_RAS_INTR0 to debugfs register name listLuo Jiaxing2020-05-191-0/+1
| | | | | | | | | | | | | | | | | | | | | | Register SAS_RAS_INTR0 can help us to figure out which ECC error has occurred. This register is helpful to identify RAS issue, so we add it to the list of debugfs register name list for easier retrieval. Link: https://lore.kernel.org/r/1589552025-165012-4-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: Modify the commit information for DSM methodLuo Jiaxing2020-05-191-2/+6
| | | | | | | | | | | | | | | | | | Make it clear that BIOS may modify some register settings. Link: https://lore.kernel.org/r/1589552025-165012-3-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: Do not reset phy timer to wait for stray phy upLuo Jiaxing2020-05-191-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We found out that after phy up, the hardware reports another oob interrupt but did not follow a phy up interrupt: oob ready -> phy up -> DEV found -> oob read -> wait phy up -> timeout We run link reset when wait phy up timeout, and it send a normal disk into reset processing. So we made some circumvention action in the code, so that this abnormal oob interrupt will not start the timer to wait for phy up. Link: https://lore.kernel.org/r/1589552025-165012-2-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: sd: Add zoned capabilities device attributeDamien Le Moal2020-05-191-0/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Export through sysfs as a scsi_disk attribute the zoned capabilities of a disk ("zoned_cap" attribute file). This new attribute indicates in human readable form (i.e. a string) the zoned block capabilities implemented by the disk as found in the ZONED field of the disk block device characteristics VPD page. The possible values are: - "none": ZONED=00b (not reported), regular disk - "host-aware": ZONED=01b, host-aware ZBC disk - "drive-managed": ZONED=10b, drive-managed ZBC disk (regular disk interface) For completeness, also add the following value which is detected using the device type rather than the ZONED field: - "host-managed": device type = 0x14 (TYPE_ZBC), host-managed ZBC disk This new sysfs attribute is purely informational and complementary to the "zoned" device request queue sysfs attribute as it allows applications and user daemons (e.g. udev) to easily differentiate regular disks from drive-managed SMR disks without the need for direct access tools such as provided by sg3utils. Link: https://lore.kernel.org/r/20200515054856.1408575-1-damien.lemoal@wdc.com Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * scsi: ufs: Make ufshcd_wait_for_register() sleep instead of busy-waitingBart Van Assche2020-05-192-24/+29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The ufshcd_wait_for_register() function either sleeps or spins until the specified register has reached the desired value. Busy-waiting is not only considered a bad practice but also has a bad impact on energy consumption. Always sleep instead of spinning by making sure that all ufshcd_wait_for_register() calls happen from a context where it is allowed to sleep. The only function call that has to be moved is the ufshcd_hba_stop() call in ufshcd_host_reset_and_restore(). Link: https://lore.kernel.org/r/20200507222750.19113-1-bvanassche@acm.org Cc: Can Guo <cang@codeaurora.org> Cc: Avri Altman <avri.altman@wdc.com> Cc: Bean Huo <beanhuo@micron.com> Cc: Alim Akhtar <alim.akhtar@samsung.com> Cc: Asutosh Das <asutoshd@codeaurora.org> Tested-by: Bean Huo <beanhuo@micron.com> Reviewed-by: Stanley Chu <stanley.chu@mediatek.com> Reviewed-by: Bean Huo <beanhuo@micron.com> Reviewed-by: Asutosh Das <asutoshd@codeaurora.org> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * scsi: cxlflash: Fix error return code in cxlflash_probe()Wei Yongjun2020-05-191-0/+1
| | | | | | | | | | | | | | | | | | | | Fix to return negative error code -ENOMEM from create_afu error handling case instead of 0, as done elsewhere in this function. Link: https://lore.kernel.org/r/20200428141855.88704-1-weiyongjun1@huawei.com Acked-by: Matthew R. Ochs <mrochs@linux.ibm.com> Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * scsi: ufs-mediatek: Customize WriteBooster flush policyStanley Chu2020-05-141-0/+1
| | | | | | | | | | | | | | | | | | | | Change the WriteBooster policy to keep VCC on during runtime suspend if available WriteBooster buffer is less than 80%. Link: https://lore.kernel.org/r/20200509093716.21010-5-stanley.chu@mediatek.com Reviewed-by: Asutosh Das <asutoshd@codeaurora.org> Signed-off-by: Stanley Chu <stanley.chu@mediatek.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * scsi: ufs: Customize flush threshold for WriteBoosterStanley Chu2020-05-143-7/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | Allow flush threshold for WriteBooster to be customizable by vendors. To achieve this, make the value a variable in struct ufs_hba_variant_params. Also introduce UFS_WB_BUF_REMAIN_PERCENT() macro to provide a more flexible way to specify WriteBooster available buffer values. Link: https://lore.kernel.org/r/20200509093716.21010-4-stanley.chu@mediatek.com Reviewed-by: Asutosh Das <asutoshd@codeaurora.org> Signed-off-by: Stanley Chu <stanley.chu@mediatek.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * scsi: ufs: Introduce ufs_hba_variant_params to group customizable parametersStanley Chu2020-05-143-26/+24
| | | | | | | | | | | | | | | | | | | | The UFS driver is growing more and more customizable parameters. Collect them in one place. Link: https://lore.kernel.org/r/20200509093716.21010-2-stanley.chu@mediatek.com Reviewed-by: Asutosh Das <asutoshd@codeaurora.org> Signed-off-by: Stanley Chu <stanley.chu@mediatek.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * scsi: sd: Signal drive managed SMR disksDamien Le Moal2020-05-141-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | Print a message indicating that a disk is a drive-managed SMR model when such drive is found using the ZONED field of the Block Device Characteristics VPD page (IDENTIFY data on ATA side). [mkp: typo] Link: https://lore.kernel.org/r/20200514081953.1252087-1-damien.lemoal@wdc.com Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * scsi: ufs-mediatek: Make ufs_mtk_fixup_dev_quirks staticChenTao2020-05-141-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | Fix the following warning: drivers/scsi/ufs/ufs-mediatek.c:585:6: warning: symbol 'ufs_mtk_fixup_dev_quirks' was not declared. Should it be static? Link: https://lore.kernel.org/r/20200514012655.127202-1-chentao107@huawei.com Reported-by: Hulk Robot <hulkci@huawei.com> Reviewed-by: Stanley Chu <stanley.chu@mediatek.com> Signed-off-by: ChenTao <chentao107@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * scsi: aacraid: Fix an oops in error handlingDan Carpenter2020-05-141-0/+1
| | | | | | | | | | | | | | | | | | | | If the memdup_user() function fails then it results in an Oops in the error handling code when we try to kfree() and error pointer. Link: https://lore.kernel.org/r/20200513093703.GB347693@mwanda Fixes: 8d925b1f00e6 ("scsi: aacraid: Use memdup_user() as a cleanup") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * scsi: hisi_sas: Display proc_name in sysfsJason Yan2020-05-123-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The 'proc_name' entry in sysfs for hisi_sas is 'null' now because it is not initialized in scsi_host_template. It looks like: [root@localhost ~]# cat /sys/class/scsi_host/host2/proc_name (null) While the other driver's entry looks like: linux-vnMQMU:~ # cat /sys/class/scsi_host/host0/proc_name megaraid_sas Link: https://lore.kernel.org/r/20200512113258.30781-1-yanaijie@huawei.com Cc: John Garry <john.garry@huawei.com> Cc: Xiang Chen <chenxiang66@hisilicon.com> Acked-by: John Garry <john.garry@huawei.com> Signed-off-by: Jason Yan <yanaijie@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * scsi: scsi_debug: Fix an error handling bug in sdeb_zbc_model_str()Dan Carpenter2020-05-111-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This test is checking the wrong variable. It should be testing "res". The "sdeb_zbc_model" variable is an enum (unsigned in this situation) and we never assign negative values to it. [mkp: fixed commit desc issue reported by Doug] Link: https://lore.kernel.org/r/20200509100408.GA5555@mwanda Fixes: 9267e0eb41fe ("scsi: scsi_debug: Add ZBC module parameter") Acked-by: Douglas Gilbert <dgilbert@interlog.com> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * scsi: mpt3sas: Remove unused including <linux/version.h>Samuel Zou2020-05-111-1/+0
| | | | | | | | | | | | | | | | | | | | | | Fix the following versioncheck warning: drivers/scsi/mpt3sas/mpt3sas_debugfs.c:16:1: unused including <linux/version.h> Link: https://lore.kernel.org/r/1588938573-57847-1-git-send-email-zou_wei@huawei.com Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Samuel Zou <zou_wei@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * scsi: mpt3sas: Fix double free warningsSuganath Prabu S2020-05-111-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix following warning from Smatch static analyser: drivers/scsi/mpt3sas/mpt3sas_base.c:5256 _base_allocate_memory_pools() warn: 'ioc->hpr_lookup' double freed drivers/scsi/mpt3sas/mpt3sas_base.c:5256 _base_allocate_memory_pools() warn: 'ioc->internal_lookup' double freed Link: https://lore.kernel.org/r/20200508110738.30732-1-suganath-prabu.subramani@broadcom.com Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Suganath Prabu S <suganath-prabu.subramani@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * scsi: megaraid_sas: Update driver version to 07.714.04.00-rc1Chandrakanth Patil2020-05-111-2/+2
| | | | | | | | | | | | Link: https://lore.kernel.org/r/20200508085314.23461-1-chandrakanth.patil@broadcom.com Signed-off-by: Chandrakanth Patil <chandrakanth.patil@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * scsi: megaraid_sas: TM command refire leads to controller firmware crashSumit Saxena2020-05-111-1/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | When TM command times out, driver invokes the controller reset. Post reset, driver re-fires pended TM commands which leads to firmware crash. Post controller reset, return pended TM commands back to OS. Link: https://lore.kernel.org/r/20200508085242.23406-1-chandrakanth.patil@broadcom.com Cc: stable@vger.kernel.org Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com> Signed-off-by: Chandrakanth Patil <chandrakanth.patil@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * scsi: megaraid_sas: Replace undefined MFI_BIG_ENDIAN macro with ↵Shivasharan S2020-05-112-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | __BIG_ENDIAN_BITFIELD macro MFI_BIG_ENDIAN macro used in drivers structure bitfield to check the CPU big endianness is undefined which would break the code on big endian machine. __BIG_ENDIAN_BITFIELD kernel macro should be used in places of MFI_BIG_ENDIAN macro. Link: https://lore.kernel.org/r/20200508085130.23339-1-chandrakanth.patil@broadcom.com Fixes: a7faf81d7858 ("scsi: megaraid_sas: Set no_write_same only for Virtual Disk") Cc: <stable@vger.kernel.org> # v5.6+ Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com> Signed-off-by: Chandrakanth Patil <chandrakanth.patil@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * scsi: megaraid_sas: Remove IO buffer hole detection logicSumit Saxena2020-05-111-58/+0
| | | | | | | | | | | | | | | | | | | | | | As blk_queue_virt_boundary() API in slave_configure ensures that no IOs will come with holes/gaps. Hence, code logic to detect the holes/gaps in IO buffer is not required. Link: https://lore.kernel.org/r/20200508083838.22778-3-chandrakanth.patil@broadcom.com Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com> Signed-off-by: Chandrakanth Patil <chandrakanth.patil@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * scsi: megaraid_sas: Limit device queue depth to controller queue depthKashyap Desai2020-05-111-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The driver currently assigns a pre-defined queue depth when the firmware-provided device queue depth is greater than the controller queue depth. Use the controller queue depth if the reported target queue depth is too large. Link: https://lore.kernel.org/r/20200508083838.22778-2-chandrakanth.patil@broadcom.com Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com> Signed-off-by: Chandrakanth Patil <chandrakanth.patil@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * scsi: ufs: Cleanup WriteBooster featureStanley Chu2020-05-111-13/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Small cleanup as below items, 1. Use ufshcd_is_wb_allowed() directly instead of ufshcd_wb_sup() since ufshcd_wb_sup() just returns the result of ufshcd_is_wb_allowed(). 2. In ufshcd_suspend(), "else if (!ufshcd_is_runtime_pm(pm_op)) can be simplified to "else" since both have the same meaning. This patch does not change any functionality. Link: https://lore.kernel.org/r/20200508080115.24233-9-stanley.chu@mediatek.com Reviewed-by: Avri Altman <avri.altman@wdc.com> Reviewed-by: Asutosh Das <asutoshd@codeaurora.org> Signed-off-by: Stanley Chu <stanley.chu@mediatek.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * scsi: ufs-mediatek: Enable WriteBooster capabilityStanley Chu2020-05-111-0/+3
| | | | | | | | | | | | | | | | | | | | | | Enable WriteBooster capability on MediaTek UFS platforms. Link: https://lore.kernel.org/r/20200508080115.24233-8-stanley.chu@mediatek.com Reviewed-by: Bean Huo <beanhuo@micron.com> Reviewed-by: Avri Altman <avri.altman@wdc.com> Reviewed-by: Asutosh Das <asutoshd@codeaurora.org> Signed-off-by: Stanley Chu <stanley.chu@mediatek.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * scsi: ufs: Add LU Dedicated buffer mode support for WriteBoosterStanley Chu2020-05-114-12/+66
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | According to UFS specification, there are two WriteBooster mode of operations: "LU dedicated buffer" mode and "shared buffer" mode. In the "LU dedicated buffer" mode, the WriteBooster Buffer is dedicated to a logical unit. If the device supports the "LU dedicated buffer" mode, this mode is configured by setting bWriteBoosterBufferType to 00h. The logical unit WriteBooster Buffer size is configured by setting the dLUNumWriteBoosterBufferAllocUnits field of the related Unit Descriptor. Only a value greater than zero enables the WriteBooster feature in the logical unit. Modify ufshcd_wb_probe() as above description to support LU Dedicated buffer mode. Note that according to UFS 3.1 specification, the valid value of bDeviceMaxWriteBoosterLUs parameter in Geometry Descriptor is 1, which means at most one LUN can have WriteBooster buffer in "LU dedicated buffer mode". Therefore this patch supports only one LUN with WriteBooster enabled. All WriteBooster related sysfs nodes are specifically mapped to the LUN with WriteBooster enabled in LU Dedicated buffer mode. Link: https://lore.kernel.org/r/20200508080115.24233-7-stanley.chu@mediatek.com Reviewed-by: Avri Altman <avri.altman@wdc.com> Reviewed-by: Bean Huo <beanhuo@micron.com> Reviewed-by: Asutosh Das <asutoshd@codeaurora.org> Signed-off-by: Stanley Chu <stanley.chu@mediatek.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * scsi: ufs: Add "index" in parameter list of ufshcd_query_flag()Stanley Chu2020-05-113-15/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | For preparation of LU Dedicated buffer mode support on WriteBooster feature, "index" parameter shall be added and allowed to be specified by callers. Link: https://lore.kernel.org/r/20200508080115.24233-6-stanley.chu@mediatek.com Reviewed-by: Bean Huo <beanhuo@micron.com> Reviewed-by: Avri Altman <avri.altman@wdc.com> Reviewed-by: Can Guo <cang@codeaurora.org> Reviewed-by: Asutosh Das <asutoshd@codeaurora.org> Signed-off-by: Stanley Chu <stanley.chu@mediatek.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * scsi: ufs-mediatek: Add fixup_dev_quirks vopsStanley Chu2020-05-111-3/+19
| | | | | | | | | | | | | | | | | | | | | | Add fixup_dev_quirk vops in MediaTek UFS platforms and provide an initial vendor-specific device quirk table. Link: https://lore.kernel.org/r/20200508080115.24233-5-stanley.chu@mediatek.com Reviewed-by: Avri Altman <avri.altman@wdc.com> Reviewed-by: Asutosh Das <asutoshd@codeaurora.org> Signed-off-by: Stanley Chu <stanley.chu@mediatek.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * scsi: ufs: Export ufs_fixup_device_setup() functionStanley Chu2020-05-112-3/+8
| | | | | | | | | | | | | | | | | | | | | | Export ufs_fixup_device_setup() to allow vendors to re-use it for fixing device quriks on specified UFS hosts. Link: https://lore.kernel.org/r/20200508080115.24233-4-stanley.chu@mediatek.com Reviewed-by: Avri Altman <avri.altman@wdc.com> Reviewed-by: Asutosh Das <asutoshd@codeaurora.org> Signed-off-by: Stanley Chu <stanley.chu@mediatek.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * scsi: ufs: Introduce fixup_dev_quirks vopsStanley Chu2020-05-112-2/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some UFS deivces may have required device quirks or have non-standard features which are enabled only on specified UFS hosts or for special customers. To not "pollute" common device quirk list, i.e. ufs_fixups table, for those devices mentioned above, introduce "fixup_dev_quirks" vops to allow vendors to fix or modify device quirks accordingly. Link: https://lore.kernel.org/r/20200508080115.24233-3-stanley.chu@mediatek.com Reviewed-by: Avri Altman <avri.altman@wdc.com> Reviewed-by: Asutosh Das <asutoshd@codeaurora.org> Signed-off-by: Stanley Chu <stanley.chu@mediatek.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * scsi: ufs: Enable WriteBooster on some pre-3.1 UFS devicesStanley Chu2020-05-112-25/+49
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The WriteBooster feature can be supported by some pre-3.1 UFS devices by upgrading firmware. To enable WriteBooster feature in such devices, introduce a device quirk to relax the entrance condition of ufshcd_wb_probe() to allow host driver to check those devices' WriteBooster capability. WriteBooster feature can be available if below all conditions are satisfied, 1. Host enables WriteBooster capability 2. UFS 3.1 device or UFS pre-3.1 device with quirk UFS_DEVICE_QUIRK_SUPPORT_EXTENDED_FEATURES enabled 3. The device descriptor shall have DEVICE_DESC_PARAM_EXT_UFS_FEATURE_SUP field 4. WriteBooster support is specified in above field Link: https://lore.kernel.org/r/20200508080115.24233-2-stanley.chu@mediatek.com Reviewed-by: Avri Altman <avri.altman@wdc.com> Reviewed-by: Asutosh Das <asutoshd@codeaurora.org> Signed-off-by: Stanley Chu <stanley.chu@mediatek.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * scsi: lpfc: Remove redundant initialization to variable rcColin Ian King2020-05-111-1/+1
| | | | | | | | | | | | | | | | | | | | | | The variable rc is being initialized with a value that is never read and it is being updated later with a new value. The initialization is redundant and can be removed. Link: https://lore.kernel.org/r/20200507203111.64709-1-colin.king@canonical.com Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Addresses-Coverity: ("Unused value")
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-24 21:11:13 +0000