There have been several attempts to fix serious problems in the compat
handling in megasas_mgmt_compat_ioctl_fw(), and it also uses the
compat_alloc_user_space() function.
Folding the compat handling into the regular ioctl function with
in_compat_syscall() simplifies it a lot and avoids some of the remaining
problems:
- missing handling of unaligned pointers
- overflowing the ioc->frame.raw array from invalid input
- compat_alloc_user_space()
Link: https://lore.kernel.org/r/20201030164450.1253641-3-arnd@kernel.org
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
It sounds unwise to let user space pass an unchecked 32-bit offset into a
kernel structure in an ioctl. This is an unsigned variable, so checking the
upper bound for the size of the structure it points into is sufficient to
avoid data corruption, but as the pointer might also be unaligned, it has
to be written carefully as well.
While I stumbled over this problem by reading the code, I did not continue
checking the function for further problems like it.
Link: https://lore.kernel.org/r/20201030164450.1253641-2-arnd@kernel.org
Fixes: c4a3e0a529 ("[SCSI] MegaRAID SAS RAID: new driver")
Cc: <stable@vger.kernel.org> # v2.6.15+
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This series consists of 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.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
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()
...
Fusion adapters can steer completions to individual queues, and
we now have support for shared host-wide tags.
So we can enable multiqueue support for fusion adapters.
Once driver enable shared host-wide tags, cpu hotplug feature is also
supported as it was enabled using below patchsets -
commit bf0beec060 ("blk-mq: drain I/O when all CPUs in a hctx are
offline")
Currently driver has provision to disable host-wide tags using
"host_tagset_enable" module parameter.
Once we do not have any major performance regression using host-wide
tags, we will drop the hand-crafted interrupt affinity settings.
Performance is also meeting the expecatation - (used both none and
mq-deadline scheduler)
24 Drive SSD on Aero with/without this patch can get 3.1M IOPs
3 VDs consist of 8 SAS SSD on Aero with/without this patch can get 3.1M
IOPs.
Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: Hannes Reinecke <hare@suse.com>
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>
This addresses the following sparse warning:
drivers/scsi/megaraid/megaraid_sas_base.c:80:5: warning: symbol
'smp_affinity_enable' was not declared. Should it be static?
Link: https://lore.kernel.org/r/20200915083948.2826598-1-yanaijie@huawei.com
Reported-by: Hulk Robot <hulkci@huawei.com>
Reviewed-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Eleven fixes, mostly in drivers or minor fixes in driver related
infrastructure libraries (target, libfc and libsas). Most of the bugs
fixed only show up under rare circumstances, the exception being the
endianness problem in qla2xxx which is used as a device on some sparc
systems.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Eleven fixes, mostly in drivers or minor fixes in driver related
infrastructure libraries (target, libfc and libsas).
Most of the bugs fixed only show up under rare circumstances, the
exception being the endianness problem in qla2xxx which is used as a
device on some sparc systems"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: mpt3sas: Don't call disable_irq from IRQ poll handler
scsi: megaraid_sas: Don't call disable_irq from process IRQ poll
scsi: target: iscsi: Fix hang in iscsit_access_np() when getting tpg->np_login_sem
scsi: libsas: Set data_dir as DMA_NONE if libata marks qc as NODATA
scsi: target: iscsi: Fix data digest calculation
scsi: lpfc: Update lpfc version to 12.8.0.4
scsi: lpfc: Extend the RDF FPIN Registration descriptor for additional events
scsi: lpfc: Fix FLOGI/PLOGI receive race condition in pt2pt discovery
scsi: lpfc: Fix setting IRQ affinity with an empty CPU mask
scsi: qla2xxx: Fix regression on sparc64
scsi: libfc: Fix for double free()
scsi: pm8001: Fix memleak in pm8001_exec_internal_task_abort
disable_irq() might sleep. Replace it with disable_irq_nosync() which is
sufficient as irq_poll_scheduled protects against concurrently running
complete_cmd_fusion() from megasas_irqpoll() and megasas_isr_fusion().
Link: https://lore.kernel.org/r/20200827165332.8432-1-thenzl@redhat.com
Fixes: a6ffd5bf68 scsi: megaraid_sas: Call disable_irq from process IRQ poll
Signed-off-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This series consists of the usual driver updates (ufs, qla2xxx, tcmu,
lpfc, hpsa, zfcp, scsi_debug) and minor bug fixes. We also have a
huge docbook fix update like most other subsystems and no major update
to the core (the few non trivial updates are either minor fixes or
removing an unused feature [scsi_sdb_cache]).
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI updates from James Bottomley:
"This consists of the usual driver updates (ufs, qla2xxx, tcmu, lpfc,
hpsa, zfcp, scsi_debug) and minor bug fixes.
We also have a huge docbook fix update like most other subsystems and
no major update to the core (the few non trivial updates are either
minor fixes or removing an unused feature [scsi_sdb_cache])"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (307 commits)
scsi: scsi_transport_srp: Sanitize scsi_target_block/unblock sequences
scsi: ufs-mediatek: Apply DELAY_AFTER_LPM quirk to Micron devices
scsi: ufs: Introduce device quirk "DELAY_AFTER_LPM"
scsi: virtio-scsi: Correctly handle the case where all LUNs are unplugged
scsi: scsi_debug: Implement tur_ms_to_ready parameter
scsi: scsi_debug: Fix request sense
scsi: lpfc: Fix typo in comment for ULP
scsi: ufs-mediatek: Prevent LPM operation on undeclared VCC
scsi: iscsi: Do not put host in iscsi_set_flashnode_param()
scsi: hpsa: Correct ctrl queue depth
scsi: target: tcmu: Make TMR notification optional
scsi: target: tcmu: Implement tmr_notify callback
scsi: target: tcmu: Fix and simplify timeout handling
scsi: target: tcmu: Factor out new helper ring_insert_padding
scsi: target: tcmu: Do not queue aborted commands
scsi: target: tcmu: Use priv pointer in se_cmd
scsi: target: Add tmr_notify backend function
scsi: target: Modify core_tmr_abort_task()
scsi: target: iscsi: Fix inconsistent debug message
scsi: target: iscsi: Fix login error when receiving
...
To avoid a warning in free_irq, clear the affinity hint.
Link: https://lore.kernel.org/r/20200709133144.8363-1-thenzl@redhat.com
Fixes: f0b9e7bdc3 ("scsi: megaraid_sas: Set affinity for high IOPS reply queues")
Acked-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
As the ENABLE_IRQ_POLL macro is undefined, the check for ENABLE_IRQ_POLL
macro in ISR will always be false. This leads to irq polling being
non-functional.
Remove ENABLE_IRQ_POLL check from ISR.
Link: https://lore.kernel.org/r/20200715120153.20512-1-chandrakanth.patil@broadcom.com
Fixes: a6ffd5bf68 ("scsi: megaraid_sas: Call disable_irq from process IRQ")
Cc: <stable@vger.kernel.org> # v5.3+
Signed-off-by: Chandrakanth Patil <chandrakanth.patil@broadcom.com>
Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The variable remainder is unused in mega_div64_32(). Remove it to avoid a
compiler warning. While at it, also fix the function documentation
comments.
Link: https://lore.kernel.org/r/20200706123348.451871-1-damien.lemoal@wdc.com
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Move function declarations to megaraid_sas.h to avoid warnings such as:
warning: no previous prototype for ‘xxx'
No functional changes.
Link: https://lore.kernel.org/r/20200706123346.451827-1-damien.lemoal@wdc.com
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Fix kernel documentation comments to avoid various warnings when compiling
with W=1.
No functional changes.
Link: https://lore.kernel.org/r/20200706123345.451783-1-damien.lemoal@wdc.com
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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>
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: a7faf81d78 ("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>
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>
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>
Fix the following coccicheck warning:
drivers/scsi/megaraid/megaraid_sas_fusion.c:4242:6-16: WARNING:
Assignment of 0/1 to bool variable
drivers/scsi/megaraid/megaraid_sas_fusion.c:4786:1-29: WARNING:
Assignment of 0/1 to bool variable
drivers/scsi/megaraid/megaraid_sas_fusion.c:4791:1-29: WARNING:
Assignment of 0/1 to bool variable
drivers/scsi/megaraid/megaraid_sas_fusion.c:4716:1-29: WARNING:
Assignment of 0/1 to bool variable
drivers/scsi/megaraid/megaraid_sas_fusion.c:4721:1-29: WARNING:
Assignment of 0/1 to bool variable
Link: https://lore.kernel.org/r/20200421034111.28353-1-yanaijie@huawei.com
Acked-by: Chandrakanth Patil <chandrakanth.patil@broadcom.com>
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Fix the following sparse warning:
drivers/scsi/megaraid/megaraid_sas_base.c:84:5: warning: symbol
'rdpq_enable' was not declared. Should it be static?
drivers/scsi/megaraid/megaraid_sas_base.c:92:14: warning: symbol
'scmd_timeout' was not declared. Should it be static?
Link: https://lore.kernel.org/r/20200407092827.18074-5-yanaijie@huawei.com
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Fix the following sparse warning:
drivers/scsi/megaraid/megaraid_sas_fusion.c:180:1: warning: symbol
'megasas_enable_intr_fusion' was not declared. Should it be static?
drivers/scsi/megaraid/megaraid_sas_fusion.c:202:1: warning: symbol
'megasas_disable_intr_fusion' was not declared. Should it be static?
drivers/scsi/megaraid/megaraid_sas_fusion.c:4233:6: warning: symbol
'megasas_refire_mgmt_cmd' was not declared. Should it be static?
Link: https://lore.kernel.org/r/20200407092827.18074-4-yanaijie@huawei.com
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Fix the following sparse warning:
drivers/scsi/megaraid/megaraid_sas_fp.c:88:5: warning: symbol
'mega_div64_32' was not declared. Should it be static?
drivers/scsi/megaraid/megaraid_sas_fp.c:370:5: warning: symbol
'MR_GetSpanBlock' was not declared. Should it be static?
drivers/scsi/megaraid/megaraid_sas_fp.c:420:5: warning: symbol
'mr_spanset_get_span_block' was not declared. Should it be static?
drivers/scsi/megaraid/megaraid_sas_fp.c:645:4: warning: symbol 'get_arm'
was not declared. Should it be static?
drivers/scsi/megaraid/megaraid_sas_fp.c:788:4: warning: symbol
'MR_GetPhyParams' was not declared. Should it be static?
drivers/scsi/megaraid/megaraid_sas_fp.c:1345:4: warning: symbol
'megasas_get_best_arm_pd' was not declared. Should it be static?
Link: https://lore.kernel.org/r/20200407092827.18074-3-yanaijie@huawei.com
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Fix the following sparse warning:
drivers/scsi/megaraid/megaraid_mbox.c:305:5: warning: symbol
'dev_attr_megaraid_mbox_app_hndl' was not declared. Should it be static?
drivers/scsi/megaraid/megaraid_mbox.c:315:5: warning: symbol
'dev_attr_megaraid_mbox_ld' was not declared. Should it be static?
Link: https://lore.kernel.org/r/20200407092827.18074-2-yanaijie@huawei.com
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
update changing all our txt files to rst ones. Excluding that, we
have the usual driver updates (qla2xxx, ufs, lpfc, zfcp, ibmvfc,
pm80xx, aacraid), a treewide update for scnprintf and some other minor
updates. The major core update is Hannes moving functions out of the
aacraid driver and into the core.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI updates from James Bottomley:
"This series has a huge amount of churn because it pulls in Mauro's doc
update changing all our txt files to rst ones.
Excluding that, we have the usual driver updates (qla2xxx, ufs, lpfc,
zfcp, ibmvfc, pm80xx, aacraid), a treewide update for scnprintf and
some other minor updates.
The major core change is Hannes moving functions out of the aacraid
driver and into the core"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (223 commits)
scsi: aic7xxx: aic97xx: Remove FreeBSD-specific code
scsi: ufs: Do not rely on prefetched data
scsi: dc395x: remove dc395x_bios_param
scsi: libiscsi: Fix error count for active session
scsi: hpsa: correct race condition in offload enabled
scsi: message: fusion: Replace zero-length array with flexible-array member
scsi: qedi: Add PCI shutdown handler support
scsi: qedi: Add MFW error recovery process
scsi: ufs: Enable block layer runtime PM for well-known logical units
scsi: ufs-qcom: Override devfreq parameters
scsi: ufshcd: Let vendor override devfreq parameters
scsi: ufshcd: Update the set frequency to devfreq
scsi: ufs: Resume ufs host before accessing ufs device
scsi: ufs-mediatek: customize the delay for enabling host
scsi: ufs: make HCE polling more compact to improve initialization latency
scsi: ufs: allow custom delay prior to host enabling
scsi: ufs-mediatek: use common delay function
scsi: ufs: introduce common and flexible delay function
scsi: ufs: use an enum for host capabilities
scsi: ufs: fix uninitialized tx_lanes in ufshcd_disable_tx_lcc()
...
Since snprintf() returns the would-be-output size instead of the actual
output size, the succeeding calls may go beyond the given buffer limit.
Fix it by replacing with scnprintf().
Also corrected the wrongly passed limit size. The remaining buffer size
must be decremented.
Link: https://lore.kernel.org/r/20200315094241.9086-7-tiwai@suse.de
Cc: "James E . J . Bottomley" <jejb@linux.ibm.com>
Cc: "Martin K . Petersen" <martin.petersen@oracle.com>
Cc: Kashyap Desai <kashyap.desai@broadcom.com>
Cc: Sumit Saxena <sumit.saxena@broadcom.com>
Cc: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Cc: linux-scsi@vger.kernel.org
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Add a flag to DMA memory allocation to silence a warning.
This driver allocates DMA memory for IO frames. This allocation may exceed
MAX_ORDER pages for few megaraid_sas controllers (controllers with very
high queue depth). Consequently, the driver has logic to keep reducing the
controller queue depth until the DMA memory allocation succeeds.
On impacted megaraid_sas controllers there would be multiple DMA allocation
failures until driver settled on an allocation that fit. These failed DMA
allocation requests caused stack traces in system logs. These were not
harmful and this patch silences those warnings/stack traces.
[mkp: clarified commit desc]
Link: https://lore.kernel.org/r/20200204152413.7107-1-thenzl@redhat.com
Signed-off-by: Tomas Henzl <thenzl@redhat.com>
Acked-by: Sumit Saxena <sumit.saxena@broadcom.com>
Reviewed-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
There are two statements that are indented one level too deeply, remove
the extraneous tabs.
[mkp: fix typo spotted by Bart]
Link: https://lore.kernel.org/r/20200126154757.42530-1-colin.king@canonical.com
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Five small patches, all in drivers or doc, which missed the initial
pull request. The qla2xxx and megaraid_sas are actual fixes and the
rest are spelling and doc changes.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull misc SCSI fixes from James Bottomley:
"Five small patches, all in drivers or doc, which missed the initial
pull request.
The qla2xxx and megaraid_sas are actual fixes and the rest are
spelling and doc changes"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: ufs: fix spelling mistake "initilized" -> "initialized"
scsi: pm80xx: fix spelling mistake "to" -> "too"
scsi: MAINTAINERS: ufs: remove pedrom.sousa@synopsys.com
scsi: megaraid_sas: fixup MSIx interrupt setup during resume
scsi: qla2xxx: Fix unbound NVME response length
Streamline resume workflow by using the same functions for enabling MSIx
interrupts as used during initialisation. Without it the driver might
crash during resume with:
WARNING: CPU: 2 PID: 4306 at ../drivers/pci/msi.c:1303 pci_irq_get_affinity+0x3b/0x90
Link: https://lore.kernel.org/r/20200113132609.69536-1-hare@suse.de
Signed-off-by: Hannes Reinecke <hare@suse.de>
Acked-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This series is slightly unusual because it includes Arnd's compat
ioctl tree here:
1c46a2cf2d Merge tag 'block-ioctl-cleanup-5.6' into 5.6/scsi-queue
Excluding Arnd's changes, this is mostly an update of the usual
drivers: megaraid_sas, mpt3sas, qla2xxx, ufs, lpfc, hisi_sas. There
are a couple of core and base updates around error propagation and
atomicity in the attribute container base we use for the SCSI
transport classes. The rest is minor changes and updates.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI updates from James Bottomley:
"This series is slightly unusual because it includes Arnd's compat
ioctl tree here:
1c46a2cf2d Merge tag 'block-ioctl-cleanup-5.6' into 5.6/scsi-queue
Excluding Arnd's changes, this is mostly an update of the usual
drivers: megaraid_sas, mpt3sas, qla2xxx, ufs, lpfc, hisi_sas.
There are a couple of core and base updates around error propagation
and atomicity in the attribute container base we use for the SCSI
transport classes.
The rest is minor changes and updates"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (149 commits)
scsi: hisi_sas: Rename hisi_sas_cq.pci_irq_mask
scsi: hisi_sas: Add prints for v3 hw interrupt converge and automatic affinity
scsi: hisi_sas: Modify the file permissions of trigger_dump to write only
scsi: hisi_sas: Replace magic number when handle channel interrupt
scsi: hisi_sas: replace spin_lock_irqsave/spin_unlock_restore with spin_lock/spin_unlock
scsi: hisi_sas: use threaded irq to process CQ interrupts
scsi: ufs: Use UFS device indicated maximum LU number
scsi: ufs: Add max_lu_supported in struct ufs_dev_info
scsi: ufs: Delete is_init_prefetch from struct ufs_hba
scsi: ufs: Inline two functions into their callers
scsi: ufs: Move ufshcd_get_max_pwr_mode() to ufshcd_device_params_init()
scsi: ufs: Split ufshcd_probe_hba() based on its called flow
scsi: ufs: Delete struct ufs_dev_desc
scsi: ufs: Fix ufshcd_probe_hba() reture value in case ufshcd_scsi_add_wlus() fails
scsi: ufs-mediatek: enable low-power mode for hibern8 state
scsi: ufs: export some functions for vendor usage
scsi: ufs-mediatek: add dbg_register_dump implementation
scsi: qla2xxx: Fix a NULL pointer dereference in an error path
scsi: qla1280: Make checking for 64bit support consistent
scsi: megaraid_sas: Update driver version to 07.713.01.00-rc1
...
IOCTLs causing firmware fault may end up in failed controller resets and
finally killing the adapter.
This patch fixes this problem as stated below:
In OCR sequence, driver will attempt refiring pended IOCTLs upto two times.
If first two attempts fail, then in third attempt driver will return pended
IOCTLs with EBUSY status to application. These changes are done to ensure
if any of pended IOCTLs is causing firmware fault and resulting into OCR
failure, then in last attempt of OCR driver will refrain firing it to
firmware and saving adapter from being killed due to faulty IOCTL.
Link: https://lore.kernel.org/r/1579000882-20246-10-git-send-email-anand.lodnoor@broadcom.com
Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Chandrakanth Patil <chandrakanth.patil@broadcom.com>
Signed-off-by: Anand Lodnoor <anand.lodnoor@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Driver initiates OCR if a DCMD command times out. But there is a deadlock
if the driver attempts to invoke another OCR before the mutex lock
(reset_mutex) is released from the previous session of OCR.
This patch takes care of the above scenario using new flag
MEGASAS_FUSION_OCR_NOT_POSSIBLE to indicate if OCR is possible.
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/1579000882-20246-9-git-send-email-anand.lodnoor@broadcom.com
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Anand Lodnoor <anand.lodnoor@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
DCMD_INIT is introduced to indicate the initial DCMD status, which was
earlier set to MFI status. DCMD_BUSY indicates the resource is busy or
locked.
Link: https://lore.kernel.org/r/1579000882-20246-8-git-send-email-anand.lodnoor@broadcom.com
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Anand Lodnoor <anand.lodnoor@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
After issuing a adapter reset, driver blindly used to set adprecovery flag
to OPERATIONAL state. Add a check to see if the FW is operational before
setting the flag and marking reset adapter successful.
Link: https://lore.kernel.org/r/1579000882-20246-7-git-send-email-anand.lodnoor@broadcom.com
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Anand Lodnoor <anand.lodnoor@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
At the time of firmware initialization, if JBOD map or RAID map is not
available, driver can function without these features in a limited
functionality mode.
Link: https://lore.kernel.org/r/1579000882-20246-6-git-send-email-anand.lodnoor@broadcom.com
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Anand Lodnoor <anand.lodnoor@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Ideally, optimal queue depth will be provided by firmware. The driver
defines will be used as a fallback mechanism in case the FW assisted QD is
not supported. The driver defined values provide optimal queue depth for
most of the drives and the workloads, as is learned from the firmware
assisted QD results.
Link: https://lore.kernel.org/r/1579000882-20246-4-git-send-email-anand.lodnoor@broadcom.com
Signed-off-by: Chandrakanth Patil <chandrakanth.patil@broadcom.com>
Signed-off-by: Anand Lodnoor <anand.lodnoor@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Disable WRITE_SAME (no_write_same) for Virtual Disks only. For System PDs
and EPDs (Enhanced PDs), WRITE_SAME need not be disabled by default.
Link: https://lore.kernel.org/r/1579000882-20246-3-git-send-email-anand.lodnoor@broadcom.com
Signed-off-by: Anand Lodnoor <anand.lodnoor@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
After device resume we expect the firmware to be in READY state.
Transition to READY might fail due to unhandled exceptions, such as an
internal error or a hardware failure. Retry initiating chip reset and wait
for the controller to come to ready state.
Link: https://lore.kernel.org/r/1579000882-20246-2-git-send-email-anand.lodnoor@broadcom.com
Signed-off-by: Chandrakanth Patil <chandrakanth.patil@broadcom.com>
Signed-off-by: Anand Lodnoor <anand.lodnoor@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
ioremap has provided non-cached semantics by default since the Linux 2.6
days, so remove the additional ioremap_nocache interface.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
11 patches, all in drivers (no core changes) that are either minor
cleanups or small fixes. They were late arriving, but still safe for
-rc1.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull more SCSI updates from James Bottomley:
"Eleven patches, all in drivers (no core changes) that are either minor
cleanups or small fixes.
They were late arriving, but still safe for -rc1"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: MAINTAINERS: Add the linux-scsi mailing list to the ISCSI entry
scsi: megaraid_sas: Make poll_aen_lock static
scsi: sd_zbc: Improve report zones error printout
scsi: qla2xxx: Fix qla2x00_request_irqs() for MSI
scsi: qla2xxx: unregister ports after GPN_FT failure
scsi: qla2xxx: fix rports not being mark as lost in sync fabric scan
scsi: pm80xx: Remove unused include of linux/version.h
scsi: pm80xx: fix logic to break out of loop when register value is 2 or 3
scsi: scsi_transport_sas: Fix memory leak when removing devices
scsi: lpfc: size cpu map by last cpu id set
scsi: ibmvscsi_tgt: Remove unneeded variable rc
This is mostly update of the usual drivers: aacraid, ufs, zfcp,
NCR5380, lpfc, qla2xxx, smartpqi, hisi_sas, target, mpt3sas, pm80xx
plus a whole load of minor updates and fixes. The two major core
changes are Al Viro's reworking of sg's handling of copy to/from user,
Ming Lei's removal of the host busy counter to avoid contention in the
multiqueue case and Damien Le Moal's fixing of residual tracking
across error handling.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI updates from James Bottomley:
"This is mostly update of the usual drivers: aacraid, ufs, zfcp,
NCR5380, lpfc, qla2xxx, smartpqi, hisi_sas, target, mpt3sas, pm80xx
plus a whole load of minor updates and fixes.
The major core changes are Al Viro's reworking of sg's handling of
copy to/from user, Ming Lei's removal of the host busy counter to
avoid contention in the multiqueue case and Damien Le Moal's fixing of
residual tracking across error handling"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (251 commits)
scsi: bnx2fc: timeout calculation invalid for bnx2fc_eh_abort()
scsi: target: core: Fix a pr_debug() argument
scsi: iscsi: Don't send data to unbound connection
scsi: target: iscsi: Wait for all commands to finish before freeing a session
scsi: target: core: Release SPC-2 reservations when closing a session
scsi: target: core: Document target_cmd_size_check()
scsi: bnx2i: fix potential use after free
Revert "scsi: qla2xxx: Fix memory leak when sending I/O fails"
scsi: NCR5380: Add disconnect_mask module parameter
scsi: NCR5380: Unconditionally clear ICR after do_abort()
scsi: NCR5380: Call scsi_set_resid() on command completion
scsi: scsi_debug: num_tgts must be >= 0
scsi: lpfc: use hdwq assigned cpu for allocation
scsi: arcmsr: fix indentation issues
scsi: qla4xxx: fix double free bug
scsi: pm80xx: Modified the logic to collect fatal dump
scsi: pm80xx: Tie the interrupt name to the module instance
scsi: pm80xx: Controller fatal error through sysfs
scsi: pm80xx: Do not request 12G sas speeds
scsi: pm80xx: Cleanup command when a reset times out
...
Fix sparse warning:
drivers/scsi/megaraid/megaraid_sas_base.c:187:12:
warning: symbol 'poll_aen_lock' was not declared. Should it be static?
Link: https://lore.kernel.org/r/20191125144454.22680-1-yuehaibing@huawei.com
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
A handful of drivers all have a trivial wrapper around their ioctl
handler, but don't call the compat_ptr() conversion function at the
moment. In practice this does not matter, since none of them are used
on the s390 architecture and for all other architectures, compat_ptr()
does not do anything, but using the new compat_ptr_ioctl()
helper makes it more correct in theory, and simplifies the code.
I checked that all ioctl handlers in these files are compatible
and take either pointer arguments or no argument.
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes gcc '-Wunused-but-set-variable' warning:
drivers/scsi/megaraid/megaraid_sas_fp.c: In function MR_GetSpanBlock:
drivers/scsi/megaraid/megaraid_sas_fp.c:400:16: warning: variable debugBlk set but not used [-Wunused-but-set-variable]
drivers/scsi/megaraid/megaraid_sas_fp.c: In function mr_spanset_get_phy_params:
drivers/scsi/megaraid/megaraid_sas_fp.c:713:25: warning: variable fusion set but not used [-Wunused-but-set-variable]
drivers/scsi/megaraid/megaraid_sas_fp.c: In function MR_GetPhyParams:
drivers/scsi/megaraid/megaraid_sas_fp.c:815:25: warning: variable fusion set but not used [-Wunused-but-set-variable]
'debugBlk' is introduced by commit 9c915a8c99 ("[SCSI] megaraid_sas:
Add 9565/9285 specific code"), but never used, so remove it
'fusion' is not used since commit c365178f31 ("scsi: megaraid_sas:
use adapter_type for all gen controllers")
Link: https://lore.kernel.org/r/1570605824-89133-1-git-send-email-zhengbin13@huawei.com
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: zhengbin <zhengbin13@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Currently, MSI-X vectors name appears in /proc/interrupts is "megasas"
which is same for all the vectors. This patch provides a unique name for
all megaraid_sas controllers and their associated MSI-X interrupts.
Link: https://lore.kernel.org/r/20191007051828.12294-1-chandrakanth.patil@broadcom.com
Suggested-by: Konstantin Shalygin <k0ste@k0ste.ru>
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>
This is mostly update of the usual drivers: qla2xxx, ufs, smartpqi,
lpfc, hisi_sas, qedf, mpt3sas; plus a whole load of minor updates.
The only core change this time around is the addition of request
batching for virtio. Since batching requires an additional flag to
use, it should be invisible to the rest of the drivers.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI updates from James Bottomley:
"This is mostly update of the usual drivers: qla2xxx, ufs, smartpqi,
lpfc, hisi_sas, qedf, mpt3sas; plus a whole load of minor updates. The
only core change this time around is the addition of request batching
for virtio. Since batching requires an additional flag to use, it
should be invisible to the rest of the drivers"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (264 commits)
scsi: hisi_sas: Fix the conflict between device gone and host reset
scsi: hisi_sas: Add BIST support for phy loopback
scsi: hisi_sas: Add hisi_sas_debugfs_alloc() to centralise allocation
scsi: hisi_sas: Remove some unused function arguments
scsi: hisi_sas: Remove redundant work declaration
scsi: hisi_sas: Remove hisi_sas_hw.slot_complete
scsi: hisi_sas: Assign NCQ tag for all NCQ commands
scsi: hisi_sas: Update all the registers after suspend and resume
scsi: hisi_sas: Retry 3 times TMF IO for SAS disks when init device
scsi: hisi_sas: Remove sleep after issue phy reset if sas_smp_phy_control() fails
scsi: hisi_sas: Directly return when running I_T_nexus reset if phy disabled
scsi: hisi_sas: Use true/false as input parameter of sas_phy_reset()
scsi: hisi_sas: add debugfs auto-trigger for internal abort time out
scsi: virtio_scsi: unplug LUNs when events missed
scsi: scsi_dh_rdac: zero cdb in send_mode_select()
scsi: fcoe: fix null-ptr-deref Read in fc_release_transport
scsi: ufs-hisi: use devm_platform_ioremap_resource() to simplify code
scsi: ufshcd: use devm_platform_ioremap_resource() to simplify code
scsi: hisi_sas: use devm_platform_ioremap_resource() to simplify code
scsi: ufs: Use kmemdup in ufshcd_read_string_desc()
...
This patch provides a module parameter and sysfs interface to select
whether the queue depth for each device should be based on the value
suggested by firmware (the default) or the maximum supported by the
controller (can_queue).
Although we have a sysfs interface per sdev to change the queue depth of
individual scsi devices, this implementation provides a single sysfs entry
per shost to switch between the controller max and the value reported by
firmware. The module parameter can provide an interface for one time grub
settings and provides persistent settings across the boot.
[mkp: tweaked commit desc]
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>
The commit de516379e8 ("scsi: megaraid_sas: changes to function
prototypes") introduced a comilation warning due to it changed the function
prototype of read_fw_status_reg() to take an instance pointer instead, but
forgot to remove an unused variable.
drivers/scsi/megaraid/megaraid_sas_fusion.c: In function
'megasas_fusion_update_can_queue':
drivers/scsi/megaraid/megaraid_sas_fusion.c:326:39: warning: variable
'reg_set' set but not used [-Wunused-but-set-variable]
struct megasas_register_set __iomem *reg_set;
^~~~~~~
Fixes: de516379e8 ("scsi: megaraid_sas: changes to function prototypes")
Signed-off-by: Qian Cai <cai@lca.pw>
Acked-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Fix sparse warnings:
drivers/scsi/megaraid/megaraid_sas_fusion.c:3369:1: warning: symbol 'complete_cmd_fusion' was not declared. Should it be static?
drivers/scsi/megaraid/megaraid_sas_fusion.c:3535:6: warning: symbol 'megasas_sync_irqs' was not declared. Should it be static?
drivers/scsi/megaraid/megaraid_sas_fusion.c:3554:1: warning: symbol 'megasas_complete_cmd_dpc_fusion' was not declared. Should it be static?
drivers/scsi/megaraid/megaraid_sas_fusion.c:3573:13: warning: symbol 'megasas_isr_fusion' was not declared. Should it be static?
drivers/scsi/megaraid/megaraid_sas_fusion.c:3604:1: warning: symbol 'build_mpt_mfi_pass_thru' was not declared. Should it be static?
drivers/scsi/megaraid/megaraid_sas_fusion.c:3661:40: warning: symbol 'build_mpt_cmd' was not declared. Should it be static?
drivers/scsi/megaraid/megaraid_sas_fusion.c:3688:1: warning: symbol 'megasas_issue_dcmd_fusion' was not declared. Should it be static?
drivers/scsi/megaraid/megaraid_sas_fusion.c:3881:5: warning: symbol 'megasas_wait_for_outstanding_fusion' was not declared. Should it be static?
drivers/scsi/megaraid/megaraid_sas_fusion.c:4005:6: warning: symbol 'megasas_refire_mgmt_cmd' was not declared. Should it be static?
drivers/scsi/megaraid/megaraid_sas_fusion.c:4525:25: warning: symbol 'megasas_get_peer_instance' was not declared. Should it be static?
drivers/scsi/megaraid/megaraid_sas_fusion.c:4825:7: warning: symbol 'megasas_fusion_crash_dump' was not declared. Should it be static?
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Fix sparse warnings:
drivers/scsi/megaraid/megaraid_sas_fusion.c:541:1: warning: symbol 'megasas_alloc_cmdlist_fusion' was not declared. Should it be static?
drivers/scsi/megaraid/megaraid_sas_fusion.c:580:1: warning: symbol 'megasas_alloc_request_fusion' was not declared. Should it be static?
drivers/scsi/megaraid/megaraid_sas_fusion.c:661:1: warning: symbol 'megasas_alloc_reply_fusion' was not declared. Should it be static?
drivers/scsi/megaraid/megaraid_sas_fusion.c:738:1: warning: symbol 'megasas_alloc_rdpq_fusion' was not declared. Should it be static?
drivers/scsi/megaraid/megaraid_sas_fusion.c:920:1: warning: symbol 'megasas_alloc_cmds_fusion' was not declared. Should it be static?
drivers/scsi/megaraid/megaraid_sas_fusion.c:1740:1: warning: symbol 'megasas_init_adapter_fusion' was not declared. Should it be static?
drivers/scsi/megaraid/megaraid_sas_fusion.c:1966:1: warning: symbol 'map_cmd_status' was not declared. Should it be static?
drivers/scsi/megaraid/megaraid_sas_fusion.c:2379:1: warning: symbol 'megasas_set_pd_lba' was not declared. Should it be static?
drivers/scsi/megaraid/megaraid_sas_fusion.c:2718:1: warning: symbol 'megasas_build_ldio_fusion' was not declared. Should it be static?
drivers/scsi/megaraid/megaraid_sas_fusion.c:3215:1: warning: symbol 'megasas_build_io_fusion' was not declared. Should it be static?
drivers/scsi/megaraid/megaraid_sas_fusion.c:3328:6: warning: symbol 'megasas_prepare_secondRaid1_IO' was not declared. Should it be static?
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
While loading fw crashdump in function fw_crash_buffer_show(), left bytes
in one dma chunk was not checked, if copying size over it, overflow access
will cause kernel panic.
Signed-off-by: Junxiao Bi <junxiao.bi@oracle.com>
Acked-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Fix spelling mistake in kernel warning message and replace printk with with
pr_warn.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This is the final round of mostly small fixes in our initial submit.
It's mostly minor fixes and driver updates. The only change of note
is adding a virt_boundary_mask to the SCSI host and host template to
parametrise this for NVMe devices instead of having them do a call in
slave_alloc. It's a fairly straightforward conversion except in the
two NVMe handling drivers that didn't set it who now have a virtual
infinity parameter added.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"This is the final round of mostly small fixes in our initial submit.
It's mostly minor fixes and driver updates. The only change of note is
adding a virt_boundary_mask to the SCSI host and host template to
parametrise this for NVMe devices instead of having them do a call in
slave_alloc. It's a fairly straightforward conversion except in the
two NVMe handling drivers that didn't set it who now have a virtual
infinity parameter added"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (24 commits)
scsi: megaraid_sas: set an unlimited max_segment_size
scsi: mpt3sas: set an unlimited max_segment_size for SAS 3.0 HBAs
scsi: IB/srp: set virt_boundary_mask in the scsi host
scsi: IB/iser: set virt_boundary_mask in the scsi host
scsi: storvsc: set virt_boundary_mask in the scsi host template
scsi: ufshcd: set max_segment_size in the scsi host template
scsi: core: take the DMA max mapping size into account
scsi: core: add a host / host template field for the virt boundary
scsi: core: Fix race on creating sense cache
scsi: sd_zbc: Fix compilation warning
scsi: libfc: fix null pointer dereference on a null lport
scsi: zfcp: fix GCC compiler warning emitted with -Wmaybe-uninitialized
scsi: zfcp: fix request object use-after-free in send path causing wrong traces
scsi: zfcp: fix request object use-after-free in send path causing seqno errors
scsi: megaraid_sas: Update driver version to 07.710.50.00
scsi: megaraid_sas: Add module parameter for FW Async event logging
scsi: megaraid_sas: Enable msix_load_balance for Invader and later controllers
scsi: megaraid_sas: Fix calculation of target ID
scsi: lpfc: reduce stack size with CONFIG_GCC_PLUGIN_STRUCTLEAK_VERBOSE
scsi: devinfo: BLIST_TRY_VPD_PAGES for SanDisk Cruzer Blade
...
When using a virt_boundary_mask, as done for NVMe devices attached to
megaraid_sas controllers, we require an unlimited max_segment_size as the
virt boundary merging code assumes that. But we also need to propagate
that to the DMA mapping layer to make dma-debug happy. The SCSI layer
takes care of that when using the per-host virt_boundary setting, but
given that megaraid_sas only wants to set the virt_boundary for actual
NVMe devices, we can't rely on that. The DMA layer maximum segment is
global to the HBA however, so we have to set it explicitly. This patch
assumes that megaraid_sas does not have a segment size limitation, which
seems true based on the SGL format, but will need to be verified.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Add module parameter to control logging levels of async event
notifications from firmware that get logged to system log. Also, allow
changing the value from sysfs after driver load.
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Load balancing IO completions across all available MSI-X vectors should be
enabled for Invader and later generation controllers only. This needs to
be disabled for older controllers. Add an adapter type check before
setting msix_load_balance flag.
Fixes: 1d15d9098a ("scsi: megaraid_sas: Load balance completions across all MSI-X")
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
In megasas_get_target_prop(), driver is incorrectly calculating the target
ID for devices with channel 1 and 3. Due to this, firmware will either
fail the command (if there is no device with the target id sent from
driver) or could return the properties for a target which was not
intended. Devices could end up with the wrong queue depth due to this.
Fix target id calculation for channel 1 and 3.
Fixes: 96188a89cc ("scsi: megaraid_sas: NVME interface target prop added")
Cc: stable@vger.kernel.org
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Fix sparse warnings:
drivers/scsi/megaraid/megaraid_sas_base.c:271:1: warning: symbol 'megasas_issue_dcmd' was not declared. Should it be static?
drivers/scsi/megaraid/megaraid_sas_base.c:2227:6: warning: symbol 'megasas_do_ocr' was not declared. Should it be static?
drivers/scsi/megaraid/megaraid_sas_base.c:3194:25: warning: symbol 'megaraid_host_attrs' was not declared. Should it be static?
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
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
...
For Aero adapters, driver provides three different performance modes
controlled through module parameter named 'perf_mode'. Below are those
performance modes:
0: Balanced - Additional high IOPS reply queues will be enabled along with
low latency queues. Interrupt coalescing will be enabled only for these
high IOPS reply queues.
1: IOPS - No additional high IOPS queues are enabled. Interrupt coalescing
will be enabled on all reply queues.
2: Latency - No additional high IOPS queues are enabled. Interrupt
coalescing will be disabled on all reply queues. This is a legacy
behavior similar to Ventura & Invader Series.
Default performance mode settings:
- Performance mode set to 'Balanced', if Aero controller is working in
16GT/s PCIe speed.
- Performance mode will be set to 'Latency' mode for all other cases.
Through module parameter 'perf_mode', user can override default performance
mode to desired one.
Captured some performance numbers with these performance modes. 4k Random
Read IO performance numbers on 24 SAS SSD drives for above three
performance modes. Performance data is from Intel Skylake and HGST SS300
(drive model SDLL1DLR400GCCA1).
IOPS:
-----------------------------------------------------------------------
|perf_mode | qd = 1 | qd = 64 | note |
|-------------|--------|---------|-------------------------------------
|balanced | 259K | 3061k | Provides max performance numbers |
| | | | both on lower QD workload & |
| | | | also on higher QD workload |
|-------------|--------|---------|-------------------------------------
|iops | 220K | 3100k | Provides max performance numbers |
| | | | only on higher QD workload. |
|-------------|--------|---------|-------------------------------------
|latency | 246k | 2226k | Provides good performance numbers |
| | | | only on lower QD worklaod. |
-----------------------------------------------------------------------
Average Latency:
-----------------------------------------------------
|perf_mode | qd = 1 | qd = 64 |
|-------------|--------------|----------------------|
|balanced | 92.05 usec | 501.12 usec |
|-------------|--------------|----------------------|
|iops | 108.40 usec | 498.10 usec |
|-------------|--------------|----------------------|
|latency | 97.10 usec | 689.26 usec |
-----------------------------------------------------
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>
The driver will use round-robin method for IO submission in batches within
the high IOPS queues when the number of in-flight ios on the target device
is larger than 8. Otherwise the driver will use low latency reply queues.
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>
High iops queues are mapped to non-managed IRQs. Set affinity of
non-managed irqs to local numa node. Low latency queues are mapped to
managed IRQs.
Driver reserves some reply queues for high IOPS queues (through
pci_alloc_irq_vectors_affinity and .pre_vectors interface). The rest of
queues are for low latency.
Based on IO workload, driver will decide which group of reply queues
(either high IOPS queues or low latency queues) to be used.
High IOPS queues will be mapped to local numa node of controller and
low latency queues will be mapped to CPUs across numa nodes. In general,
high IOPS and low latency queues should fit into 128 reply queues
which is the max number of reply queues supported by Aero adapters.
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>
Driver should enable interrupt coalescing (during driver load and after
Controller Reset) for High IOPS queues by masking appropriate bits in IOC
INIT frame.
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>
Aero controllers support balanced performance mode through the ability to
configure queues with different properties.
Reply queues with interrupt coalescing enabled are called "high iops reply
queues" and reply queues with interrupt coalescing disabled are called "low
latency reply queues".
The driver configures a combination of high iops and low latency reply
queues if:
- HBA is an AERO controller;
- MSI-X vectors supported by the HBA is 128;
- Total CPU count in the system more than high iops queue count;
- Driver is loaded with default max_msix_vectors module parameter; and
- System booted in non-kdump mode.
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>
Added driver support to allow passthrough MPI toolbox type MFI commands to
firmware based on firmware capability.
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>
For RAID5/RAID6 volumes configured behind Aero, driver will be doing 64bit
division operations on behalf of firmware as controller's ARM CPU is very
slow in this division. Later, driver calculates Q-ARM, P-ARM and Log-ARM and
passes those values to firmware by writing these values to RAID_CONTEXT.
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>
RAID1 PCI bandwidth limit algorithm is not applicable to Aero as it's PCIe
Gen4 adapter.
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>
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>
Issue: This issue is applicable to scenario when JBOD sequence map is
unavailable (memory allocation for JBOD sequence map failed) to driver but
feature is supported by firmware. If the driver sends a JBOD IO by not
adding 255 (MAX_PHYSICAL_DEVICES - 1) to device ID when underlying firmware
supports JBOD sequence map, it will lead to the IO failure.
Fix: For JBOD IOs, driver will not use the RAID map to fetch the devhandle
if JBOD sequence map is unavailable. Driver will set Devhandle to 0xffff
and Target ID to 'device ID + 255 (MAX_PHYSICAL_DEVICES - 1)'.
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>
Firmware does not expect FastPath IO sent through Region Lock Bypass queue.
Though firmware never exposes such settings when fastpath IO can be sent to
RL bypass queue but it's safer to remove dead code which directs fastpath
IO to RL Bypass queue.
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>
Issue: Under certain conditions, controller goes in FAULT state after IOC
INIT fired to firmware. Such Fault can be recovered through controller
reset.
Fix: In driver probe context, if firmware fault is observed post IOC INIT,
driver would do controller reset followed by retry logic for IOC INIT
command.
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>
Issue: There is possibility of few DCMDs timing out with 'reset_mutex' lock
held. As part of DCMD timeout handling, driver calls function
megasas_reset_fusion which also tries to acquire same lock 'reset_mutex'
and end up with deadlock.
Fix: Upon timeout of DCMDs (which are fired with 'reset_mutex' lock held),
driver will release 'reset_mutex' before calling OCR function and will
acquire lock again after OCR function returns.
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>
On PowerPC architecture, calling disable_irq_nosync from IRQ context is not
providing the required effect.
In current megaraid_sas driver, disable_irq_nosync is being called from IRQ
context before enabling IRQ poll. But due to the issue seen on PPC, after
IRQ poll disable and legacy ISR is enabled, we are not seeing our ISR
getting called.
Fix: Call disable_irq from IRQ poll thread context instead of IRQ context.
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>
This patch will add support for non-secure Aero adapter PCI IDs. Driver
will throw an error message when a non-secure type controller is
detected. Purpose of this interface is to avoid interacting with any
firmware which is not secured/signed by Broadcom. Any tampering on Firmware
component will be detected by hardware and it will be communicated to the
driver to avoid any further interaction with that component.
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>
Aero adapters provides Atomic Request Descriptor as an alternative method
for posting an entry onto a request queue. The posting of an Atomic Request
Descriptor is an atomic operation, providing a safe mechanism for multiple
processors on the host to post requests without synchronization. This
Atomic Request Descriptor format is identical to first 32 bits of Default
Request Descriptor and uses only 32 bits.
If Aero adapters support Atomic descriptor, driver should use it for
posting IOs and DCMDs to firmware.
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>
One of the more common cases of allocation size calculations is finding the
size of a structure that has a zero-sized array at the end, along with
memory for some number of elements for that array. For example:
struct MR_PD_CFG_SEQ_NUM_SYNC {
...
struct MR_PD_CFG_SEQ seq[1];
} __packed;
Make use of the struct_size() helper instead of an open-coded version in
order to avoid any potential type mistakes.
So, replace the following form:
sizeof(struct MR_PD_CFG_SEQ_NUM_SYNC) + (sizeof(struct MR_PD_CFG_SEQ) * (MAX_PHYSICAL_DEVICES - 1))
with:
struct_size(pd_sync, seq, MAX_PHYSICAL_DEVICES - 1)
This code was detected with the help of Coccinelle.
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Acked-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Remove including <linux/version.h> that don't need it.
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Use existing macros. No functional change.
Signed-off-by: Tomas Henzl <thenzl@redhat.com>
Acked-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Checkpatch emits a warning when using symbolic permissions. Use octal
permissions instead. No functional change.
Signed-off-by: Tomas Henzl <thenzl@redhat.com>
Acked-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Support is easier with all driver parameters visible in sysfs.
Signed-off-by: Tomas Henzl <thenzl@redhat.com>
Acked-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Fixes gcc '-Wunused-but-set-variable' warnings:
drivers/scsi/megaraid/megaraid_sas_base.c: In function megasas_fw_crash_buffer_show:
drivers/scsi/megaraid/megaraid_sas_base.c:3138:16: warning: variable buff_addr set but not used [-Wunused-but-set-variable]
drivers/scsi/megaraid/megaraid_sas_base.c: In function megasas_get_pd_list:
drivers/scsi/megaraid/megaraid_sas_base.c:4426:13: warning: variable ci_h set but not used [-Wunused-but-set-variable]
'buff_addr' is never used since inroduction in commit fc62b3fc90
("megaraid_sas : Firmware crash dump feature support")
'ci_h' is not used since commit 9b3d028f34 ("scsi: megaraid_sas:
Pre-allocate frequently used DMA buffers")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Fixes gcc '-Wunused-but-set-variable' warning:
drivers/scsi/megaraid/megaraid_sas_base.c: In function megasas_create_frame_pool:
drivers/scsi/megaraid/megaraid_sas_base.c:4124:6: warning: variable sge_sz set but not used [-Wunused-but-set-variable]
It's not used any more since commit 200aed582d ("megaraid_sas: endianness
related bug fixes and code optimization")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Fixes gcc '-Wunused-but-set-variable' warnings:
drivers/scsi/megaraid/megaraid_sas_base.c: In function megasas_suspend:
drivers/scsi/megaraid/megaraid_sas_base.c:7269:20: warning: variable host set but not used [-Wunused-but-set-variable]
drivers/scsi/megaraid/megaraid_sas_base.c: In function megasas_aen_polling:
drivers/scsi/megaraid/megaraid_sas_base.c:8397:15: warning: variable wait_time set but not used [-Wunused-but-set-variable]
'host' never used since introduction in commit 31ea708897 ("[SCSI]
megaraid_sas: add hibernation support")
'wait_time' never used since commit 11c71cb4ab ("megaraid_sas: Do
not allow PCI access during OCR")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Fixes gcc '-Wunused-but-set-variable' warning:
drivers/scsi/megaraid/megaraid_sas_base.c: In function megasas_transition_to_ready:
drivers/scsi/megaraid/megaraid_sas_base.c:3900:6: warning: variable cur_state set but not used [-Wunused-but-set-variable]
Never used since commit 7218df69e3 ("[SCSI] megaraid_sas: use the
firmware boot timeout when waiting for commands")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Create a debugfs interface for megaraid_sas driver. Provide interface to
dump driver RAID map in debugfs.
Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Print FW supported MSI-X vector count only if FW supports
MSI-X.
Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Add debug prints related to device list being returned by firmware. The a
debug flag to activate these prints.
Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Add prints in resume/suspend path to help in debugging hibernation
issues. The print gives an indication when the driver entry points are
called.
Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Add a print to dump the interrupt status in system log for debugging.
Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
When driver detects a firmware fault during load, dump additional
information on fault code and subcode that will help in debugging.
Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Add a sysfs interface to get the raid map index that is being used by
driver.
Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Add prints for BAR address information during driver load. This helps in
debugging issues with BAR address changing during OS boot.
Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
When controller fails to transition to READY state during driver probe,
dump the system interface register set. This will give snapshot of the
firmware status for debugging driver load issues.
Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Add a sysfs interface to dump the controller's system interface registers.
Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Add option to format the buffer that is being dumped. Currently, the IO
frame and chain frame dumped in the syslog is getting split across multiple
lines based on the formatting. Fix this by using KERN_CONT in printk.
Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Add prints to identify the internal DCMD opcode that has timed out.
Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This patch enhances the existing debug prints in reset and task management
path.
These debug prints in adapter reset path helps with debugging issues
related to IO timeouts that are seen frequently in the field. Add
additional debug prints to dump the pending command frames before
initiating an adapter reset. Also, print FastPath IOs that are
outstanding.
Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Driver will use "reply descriptor post queues" in round robin fashion when
the combined MSI-X mode is not enabled. With this IO completions are
distributed and load balanced across all the available reply descriptor
post queues equally.
This is enabled only if combined MSI-X mode is not enabled in firmware.
This improves performance and also fixes soft lockups.
When load balancing is enabled, IRQ affinity from driver needs to be
disabled.
Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Issue Description:
We have seen cpu lock up issues from field if system has a large (more than
96) logical cpu count. SAS3.0 controller (Invader series) supports max 96
MSI-X vector and SAS3.5 product (Ventura) supports max 128 MSI-X vectors.
This may be a generic issue (if PCI device support completion on multiple
reply queues).
Let me explain it w.r.t megaraid_sas supported h/w just to simplify the
problem and possible changes to handle such issues. MegaRAID controller
supports multiple reply queues in completion path. Driver creates MSI-X
vectors for controller as "minimum of (FW supported Reply queues, Logical
CPUs)". If submitter is not interrupted via completion on same CPU, there
is a loop in the IO path. This behavior can cause hard/soft CPU lockups, IO
timeout, system sluggish etc.
Example - one CPU (e.g. CPU A) is busy submitting the IOs and another CPU
(e.g. CPU B) is busy with processing the corresponding IO's reply
descriptors from reply descriptor queue upon receiving the interrupts from
HBA. If CPU A is continuously pumping the IOs then always CPU B (which is
executing the ISR) will see the valid reply descriptors in the reply
descriptor queue and it will be continuously processing those reply
descriptor in a loop without quitting the ISR handler.
megaraid_sas driver will exit ISR handler if it finds unused reply
descriptor in the reply descriptor queue. Since CPU A will be continuously
sending the IOs, CPU B may always see a valid reply descriptor (posted by
HBA Firmware after processing the IO) in the reply descriptor queue. In
worst case, driver will not quit from this loop in the ISR handler.
Eventually, CPU lockup will be detected by watchdog.
Above mentioned behavior is not common if "rq_affinity" set to 2 or
affinity_hint is honored by irqbalancer as "exact". If rq_affinity is set
to 2, submitter will be always interrupted via completion on same CPU. If
irqbalancer is using "exact" policy, interrupt will be delivered to
submitter CPU.
Problem statement:
If CPU count to MSI-X vectors (reply descriptor Queues) count ratio is not
1:1, we still have exposure of issue explained above and for that we don't
have any solution.
Exposure of soft/hard lockup is seen if CPU count is more than MSI-X
supported by device.
If CPUs count to MSI-X vectors count ratio is not 1:1, (Other way, if
CPU counts to MSI-X vector count ratio is something like X:1, where X > 1)
then 'exact' irqbalance policy OR rq_affinity = 2 won't help to avoid CPU
hard/soft lockups. There won't be any one to one mapping between
CPU to MSI-X vector instead one MSI-X interrupt (or reply descriptor queue)
is shared with group/set of CPUs and there is a possibility of having a
loop in the IO path within that CPU group and may observe lockups.
For example: Consider a system having two NUMA nodes and each node having
four logical CPUs and also consider that number of MSI-X vectors enabled on
the HBA is two, then CPUs count to MSI-X vector count ratio as 4:1.
e.g.
MSI-X vector 0 is affinity to CPU 0, CPU 1, CPU 2 & CPU 3 of NUMA node 0 and
MSI-X vector 1 is affinity to CPU 4, CPU 5, CPU 6 & CPU 7 of NUMA node 1.
numactl --hardware
available: 2 nodes (0-1)
node 0 cpus: 0 1 2 3 --> MSI-X 0
node 0 size: 65536 MB
node 0 free: 63176 MB
node 1 cpus: 4 5 6 7 --> MSI-X 1
node 1 size: 65536 MB
node 1 free: 63176 MB
Assume that user started an application which uses all the CPUs of NUMA
node 0 for issuing the IOs. Only one CPU from affinity list (it can be any
cpu since this behavior depends upon irqbalance) CPU0 will receive the
interrupts from MSI-X 0 for all the IOs. Eventually, CPU 0 IO submission
percentage will be decreasing and ISR processing percentage will be
increasing as it is more busy with processing the interrupts. Gradually IO
submission percentage on CPU 0 will be zero and it's ISR processing
percentage will be 100% as IO loop has already formed within the
NUMA node 0, i.e. CPU 1, CPU 2 & CPU 3 will be continuously busy with
submitting the heavy IOs and only CPU 0 is busy in the ISR path as it
always find the valid reply descriptor in the reply descriptor queue.
Eventually, we will observe the hard lockup here.
Chances of occurring of hard/soft lockups are directly proportional to
value of X. If value of X is high, then chances of observing CPU lockups is
high.
Solution:
Use IRQ poll interface defined in "irq_poll.c".
megaraid_sas driver will execute ISR routine in softirq context and it will
always quit the loop based on budget provided in IRQ poll interface.
Driver will switch to IRQ poll only when more than a threshold number of
reply descriptors are handled in one ISR. Currently threshold is set as
1/4th of HBA queue depth.
In these scenarios (i.e. where CPUs count to MSI-X vectors count ratio is
X:1 (where X > 1)), IRQ poll interface will avoid CPU hard lockups due to
voluntary exit from the reply queue processing based on budget.
Note - Only one MSI-X vector is busy doing processing.
Select CONFIG_IRQ_POLL from driver Kconfig for driver compilation.
Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
While an online controller reset(OCR) is in progress, there is short
duration where all access to controller's PCI config space from the host
needs to be blocked. This is due to a hardware limitation of MegaRAID
controllers.
With this patch, driver will block all access to controller's config space
from userland applications by calling pci_cfg_access_lock() while OCR is in
progress and unlocking after controller comes back to ready state.
Added helper function which locks the config space before initiating OCR
and wait for controller to become READY.
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
No functional change. This patch reworks code around controller reset path
which gets rid of a couple of goto labels. This is in preparation for the
next patch which adds PCI config space access locking while controller
reset is in progress.
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
fw_reset_no_pci_access is only applicable for MFI controllers and is not
used for Fusion controllers.
For all Fusion controllers, driver can check reset adapter bit in
status register before performing a chip reset without
setting "fw_reset_no_pci_access".
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
No functional change. Remove set but unused variable in
megasas_set_static_target_properties.
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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>
Based on 2 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 this program is distributed in the
hope that it will be useful but without any warranty without even
the implied warranty of merchantability or fitness for a particular
purpose see the gnu general public license for more details you
should have received a copy of the gnu general public license along
with this program if not see http www gnu org licenses
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 this program is distributed in the
hope that it will be useful but without any warranty without even
the implied warranty of merchantability or fitness for a particular
purpose see the gnu general public license for more details [based]
[from] [clk] [highbank] [c] you should have received a copy of the
gnu general public license along with this program if not see http
www gnu org licenses
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-or-later
has been chosen to replace the boilerplate/reference in 355 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Jilayne Lovejoy <opensource@jilayne.com>
Reviewed-by: Steve Winslow <swinslow@gmail.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190519154041.837383322@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add SPDX license identifiers to all Make/Kconfig files which:
- Have no license information of any form
These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:
GPL-2.0-only
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This is mostly update of the usual drivers: qla2xxx, qedf, smartpqi,
hpsa, lpfc, ufs, mpt3sas, ibmvfc and hisi_sas. Plus number of minor
changes, spelling fixes and other trivia.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI updates from James Bottomley:
"This is mostly update of the usual drivers: qla2xxx, qedf, smartpqi,
hpsa, lpfc, ufs, mpt3sas, ibmvfc and hisi_sas. Plus number of minor
changes, spelling fixes and other trivia"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (298 commits)
scsi: qla2xxx: Avoid that lockdep complains about unsafe locking in tcm_qla2xxx_close_session()
scsi: qla2xxx: Avoid that qlt_send_resp_ctio() corrupts memory
scsi: qla2xxx: Fix hardirq-unsafe locking
scsi: qla2xxx: Complain loudly about reference count underflow
scsi: qla2xxx: Use __le64 instead of uint32_t[2] for sending DMA addresses to firmware
scsi: qla2xxx: Introduce the dsd32 and dsd64 data structures
scsi: qla2xxx: Check the size of firmware data structures at compile time
scsi: qla2xxx: Pass little-endian values to the firmware
scsi: qla2xxx: Fix race conditions in the code for aborting SCSI commands
scsi: qla2xxx: Use an on-stack completion in qla24xx_control_vp()
scsi: qla2xxx: Make qla24xx_async_abort_cmd() static
scsi: qla2xxx: Remove unnecessary locking from the target code
scsi: qla2xxx: Remove qla_tgt_cmd.released
scsi: qla2xxx: Complain if a command is released that is owned by the firmware
scsi: qla2xxx: target: Fix offline port handling and host reset handling
scsi: qla2xxx: Fix abort handling in tcm_qla2xxx_write_pending()
scsi: qla2xxx: Fix error handling in qlt_alloc_qfull_cmd()
scsi: qla2xxx: Simplify qlt_send_term_imm_notif()
scsi: qla2xxx: Fix use-after-free issues in qla2xxx_qpair_sp_free_dma()
scsi: qla2xxx: Fix a qla24xx_enable_msix() error path
...
There are a couple of spelling mistakes in some kernel info and notice
messages. Fix these.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Fix sparse warning:
drivers/scsi/megaraid/megaraid_sas_base.c:4652:1: warning:
symbol 'megasas_host_device_list_query' was not declared. Should it be static?
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
mmiowb() is now implied by spin_unlock() on architectures that require
it, so there is no reason to call it from driver code. This patch was
generated using coccinelle:
@mmiowb@
@@
- mmiowb();
and invoked as:
$ for d in drivers include/linux/qed sound; do \
spatch --include-headers --sp-file mmiowb.cocci --dir $d --in-place; done
NOTE: mmiowb() has only ever guaranteed ordering in conjunction with
spin_unlock(). However, pairing each mmiowb() removal in this patch with
the corresponding call to spin_unlock() is not at all trivial, so there
is a small chance that this change may regress any drivers incorrectly
relying on mmiowb() to order MMIO writes between CPUs using lock-free
synchronisation. If you've ended up bisecting to this commit, you can
reintroduce the mmiowb() calls using wmb() instead, which should restore
the old behaviour on all architectures other than some esoteric ia64
systems.
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
This is the final round of mostly small fixes and performance
improvements to our initial submit. The main regression fix is the
ia64 simscsi build failure which was missed in the serial number
elimination conversion.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull more SCSI updates from James Bottomley:
"This is the final round of mostly small fixes and performance
improvements to our initial submit.
The main regression fix is the ia64 simscsi build failure which was
missed in the serial number elimination conversion"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (24 commits)
scsi: ia64: simscsi: use request tag instead of serial_number
scsi: aacraid: Fix performance issue on logical drives
scsi: lpfc: Fix error codes in lpfc_sli4_pci_mem_setup()
scsi: libiscsi: Hold back_lock when calling iscsi_complete_task
scsi: hisi_sas: Change SERDES_CFG init value to increase reliability of HiLink
scsi: hisi_sas: Send HARD RESET to clear the previous affiliation of STP target port
scsi: hisi_sas: Set PHY linkrate when disconnected
scsi: hisi_sas: print PHY RX errors count for later revision of v3 hw
scsi: hisi_sas: Fix a timeout race of driver internal and SMP IO
scsi: hisi_sas: Change return variable type in phy_up_v3_hw()
scsi: qla2xxx: check for kstrtol() failure
scsi: lpfc: fix 32-bit format string warning
scsi: lpfc: fix unused variable warning
scsi: target: tcmu: Switch to bitmap_zalloc()
scsi: libiscsi: fall back to sendmsg for slab pages
scsi: qla2xxx: avoid printf format warning
scsi: lpfc: resolve static checker warning in lpfc_sli4_hba_unset
scsi: lpfc: Correct __lpfc_sli_issue_iocb_s4 lockdep check
scsi: ufs: hisi: fix ufs_hba_variant_ops passing
scsi: qla2xxx: Fix panic in qla_dfs_tgt_counters_show
...
This is mostly update of the usual drivers: arcmsr, qla2xxx, lpfc,
hisi_sas, target/iscsi and target/core. Additionally Christoph
refactored gdth as part of the dma changes. The major mid-layer
change this time is the removal of bidi commands and with them the
whole of the osd/exofs driver and filesystem.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI updates from James Bottomley:
"This is mostly update of the usual drivers: arcmsr, qla2xxx, lpfc,
hisi_sas, target/iscsi and target/core.
Additionally Christoph refactored gdth as part of the dma changes. The
major mid-layer change this time is the removal of bidi commands and
with them the whole of the osd/exofs driver and filesystem. This is a
major simplification for block and mq in particular"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (240 commits)
scsi: cxgb4i: validate tcp sequence number only if chip version <= T5
scsi: cxgb4i: get pf number from lldi->pf
scsi: core: replace GFP_ATOMIC with GFP_KERNEL in scsi_scan.c
scsi: mpt3sas: Add missing breaks in switch statements
scsi: aacraid: Fix missing break in switch statement
scsi: kill command serial number
scsi: csiostor: drop serial_number usage
scsi: mvumi: use request tag instead of serial_number
scsi: dpt_i2o: remove serial number usage
scsi: st: osst: Remove negative constant left-shifts
scsi: ufs-bsg: Allow reading descriptors
scsi: ufs: Allow reading descriptor via raw upiu
scsi: ufs-bsg: Change the calling convention for write descriptor
scsi: ufs: Remove unused device quirks
Revert "scsi: ufs: disable vccq if it's not needed by UFS device"
scsi: megaraid_sas: Remove a bunch of set but not used variables
scsi: clean obsolete return values of eh_timed_out
scsi: sd: Optimal I/O size should be a multiple of physical block size
scsi: MAINTAINERS: SCSI initiator and target tweaks
scsi: fcoe: make use of fip_mode enum complete
...
megaraid_sas takes 1+ seconds to load while waiting for firmware:
[2.822603] megaraid_sas 0000:03:00.0: Waiting for FW to come to ready state
[3.871003] megaraid_sas 0000:03:00.0: FW now in Ready state
This is due to the following loop in megasas_transition_to_ready(), which
waits a minimum of 1 second, even though the FW becomes ready in tens of
millisecs:
/*
* The cur_state should not last for more than max_wait secs
*/
for (i = 0; i < max_wait; i++) {
...
msleep(1000);
...
dev_info(&instance->pdev->dev, "FW now in Ready state\n");
This is a regression, caused by a change of the msleep granularity from 1
to 1000 due to concern about waiting too long on systems with coarse
jiffies.
To fix, increase iterations and use msleep(20), which results in:
[2.670627] megaraid_sas 0000:03:00.0: Waiting for FW to come to ready state
[2.739386] megaraid_sas 0000:03:00.0: FW now in Ready state
Fixes: fb2f3e96d80f ("scsi: megaraid_sas: Fix msleep granularity")
Signed-off-by: Steve Sistare <steven.sistare@oracle.com>
Acked-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Fixes gcc '-Wunused-but-set-variable' warning:
drivers/scsi/megaraid/megaraid_sas_fusion.c: In function 'wait_and_poll':
drivers/scsi/megaraid/megaraid_sas_fusion.c:936:25: warning:
variable 'fusion' set but not used [-Wunused-but-set-variable]
drivers/scsi/megaraid/megaraid_sas_fusion.c: In function 'megasas_sync_map_info':
drivers/scsi/megaraid/megaraid_sas_fusion.c:1329:6: warning:
variable 'size_sync_info' set but not used [-Wunused-but-set-variable]
drivers/scsi/megaraid/megaraid_sas_fusion.c: In function 'megasas_init_adapter_fusion':
drivers/scsi/megaraid/megaraid_sas_fusion.c:1639:39: warning:
variable 'reg_set' set but not used [-Wunused-but-set-variable]
drivers/scsi/megaraid/megaraid_sas_fusion.c: In function 'megasas_is_prp_possible':
drivers/scsi/megaraid/megaraid_sas_fusion.c:1925:25: warning:
variable 'fusion' set but not used [-Wunused-but-set-variable]
drivers/scsi/megaraid/megaraid_sas_fusion.c: In function 'megasas_make_prp_nvme':
drivers/scsi/megaraid/megaraid_sas_fusion.c:2047:25: warning:
variable 'fusion' set but not used [-Wunused-but-set-variable]
drivers/scsi/megaraid/megaraid_sas_fusion.c: In function 'megasas_build_ldio_fusion':
drivers/scsi/megaraid/megaraid_sas_fusion.c:2620:42: warning:
variable 'req_desc' set but not used [-Wunused-but-set-variable]
drivers/scsi/megaraid/megaraid_sas_fusion.c: In function 'megasas_build_and_issue_cmd_fusion':
drivers/scsi/megaraid/megaraid_sas_fusion.c:3245:25: warning:
variable 'fusion' set but not used [-Wunused-but-set-variable]
drivers/scsi/megaraid/megaraid_sas_fusion.c: In function 'megasas_task_abort_fusion':
drivers/scsi/megaraid/megaraid_sas_fusion.c:4398:25: warning:
variable 'fusion' set but not used [-Wunused-but-set-variable]
drivers/scsi/megaraid/megaraid_sas_fusion.c: In function 'megasas_reset_target_fusion':
drivers/scsi/megaraid/megaraid_sas_fusion.c:4484:25: warning:
variable 'fusion' set but not used [-Wunused-but-set-variable]
They're not used anymore and can be removed.
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
when create DMA pool for cmd frames failed, we should return -ENOMEM,
instead of 0.
In some case in:
megasas_init_adapter_fusion()
-->megasas_alloc_cmds()
-->megasas_create_frame_pool
create DMA pool failed,
--> megasas_free_cmds() [1]
-->megasas_alloc_cmds_fusion()
failed, then goto fail_alloc_cmds.
-->megasas_free_cmds() [2]
we will call megasas_free_cmds twice, [1] will kfree cmd_list,
[2] will use cmd_list.it will cause a problem:
Unable to handle kernel NULL pointer dereference at virtual address
00000000
pgd = ffffffc000f70000
[00000000] *pgd=0000001fbf893003, *pud=0000001fbf893003,
*pmd=0000001fbf894003, *pte=006000006d000707
Internal error: Oops: 96000005 [#1] SMP
Modules linked in:
CPU: 18 PID: 1 Comm: swapper/0 Not tainted
task: ffffffdfb9290000 ti: ffffffdfb923c000 task.ti: ffffffdfb923c000
PC is at megasas_free_cmds+0x30/0x70
LR is at megasas_free_cmds+0x24/0x70
...
Call trace:
[<ffffffc0005b779c>] megasas_free_cmds+0x30/0x70
[<ffffffc0005bca74>] megasas_init_adapter_fusion+0x2f4/0x4d8
[<ffffffc0005b926c>] megasas_init_fw+0x2dc/0x760
[<ffffffc0005b9ab0>] megasas_probe_one+0x3c0/0xcd8
[<ffffffc0004a5abc>] local_pci_probe+0x4c/0xb4
[<ffffffc0004a5c40>] pci_device_probe+0x11c/0x14c
[<ffffffc00053a5e4>] driver_probe_device+0x1ec/0x430
[<ffffffc00053a92c>] __driver_attach+0xa8/0xb0
[<ffffffc000538178>] bus_for_each_dev+0x74/0xc8
[<ffffffc000539e88>] driver_attach+0x28/0x34
[<ffffffc000539a18>] bus_add_driver+0x16c/0x248
[<ffffffc00053b234>] driver_register+0x6c/0x138
[<ffffffc0004a5350>] __pci_register_driver+0x5c/0x6c
[<ffffffc000ce3868>] megasas_init+0xc0/0x1a8
[<ffffffc000082a58>] do_one_initcall+0xe8/0x1ec
[<ffffffc000ca7be8>] kernel_init_freeable+0x1c8/0x284
[<ffffffc0008d90b8>] kernel_init+0x1c/0xe4
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Acked-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Add padding to make the structure variables in MR_HOST_DEVICE_LIST_ENTRY
64-bit aligned. Also, add reserved fields to MR_HOST_DEVICE_LIST for
future firmware usage.
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This patch adds support for the new DEVICE_LIST DCMD.
Driver currently sends two separate DCMDs for getting the list of PDs and
LDs that are exposed to host. The new DCMD provides a single interface to
get a list of both PDs and LDs that are exposed to the host. Based on the
list of target IDs that are returned by this DCMD, driver will add the
devices (PD/LD) to SML. Driver will check for FW support for this new DCMD
and based on the support will either send the new DCMD or will fall back to
the earlier method of sending two separate DCMDs for PD and LD list.
Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
In preparation of adding support for the DEVICE_LIST DCMD, this patch
refactors the code in the AEN event handling path. Add new function to
update the PD and LD list in driver. Move the code to scan PD and VD
channels into separate function.
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
During FW init, combine the code to get the PD and LD list from FW into a
single function. This patch is in preparation for adding support for
HOST_DEVICE_LIST DCMD.
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
A set of 17 fixes. Most of these are minor or trivial. The one fix
that may be serious is the isci one: the bug can cause hba parameters
to be set from uninitialized memory. I don't think it's exploitable,
but you never know.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"A set of 17 fixes. Most of these are minor or trivial.
The one fix that may be serious is the isci one: the bug can cause hba
parameters to be set from uninitialized memory. I don't think it's
exploitable, but you never know"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: cxgb4i: add wait_for_completion()
scsi: qla1280: set 64bit coherent mask
scsi: ufs: Fix geometry descriptor size
scsi: megaraid_sas: Retry reads of outbound_intr_status reg
scsi: qedi: Add ep_state for login completion on un-reachable targets
scsi: ufs: Fix system suspend status
scsi: qla2xxx: Use correct number of vectors for online CPUs
scsi: hisi_sas: Set protection parameters prior to adding SCSI host
scsi: tcmu: avoid cmd/qfull timers updated whenever a new cmd comes
scsi: isci: initialize shost fully before calling scsi_add_host()
scsi: lpfc: lpfc_sli: Mark expected switch fall-throughs
scsi: smartpqi_init: fix boolean expression in pqi_device_remove_start
scsi: core: Synchronize request queue PM status only on successful resume
scsi: pm80xx: reduce indentation
scsi: qla4xxx: check return code of qla4xxx_copy_from_fwddb_param
scsi: megaraid_sas: correct an info message
scsi: target/iscsi: fix error msg typo when create lio_qr_cache failed
scsi: sd: Fix cache_type_store()
commit 272652fcbf ("scsi: megaraid_sas: add retry logic in megasas_readl")
missed changing readl to megasas_readl in megasas_clear_intr_fusion(). For
Aero controllers, reads of outbound_intr_status register needs to be
retried.
Reported-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This was apparently forgotten in
894169db1 ("scsi: megaraid_sas: Use 63-bit DMA addressing").
Signed-off-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
We already need to zero out memory for dma_alloc_coherent(), as such
using dma_zalloc_coherent() is superflous. Phase it out.
This change was generated with the following Coccinelle SmPL patch:
@ replace_dma_zalloc_coherent @
expression dev, size, data, handle, flags;
@@
-dma_zalloc_coherent(dev, size, handle, flags)
+dma_alloc_coherent(dev, size, handle, flags)
Suggested-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
[hch: re-ran the script on the latest tree]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Although MegaRAID controllers support 64-bit DMA addressing, as per
hardware design, DMA address with all 64-bits set
(0xFFFFFFFF-FFFFFFFF) results in a firmware fault.
Driver will set 63-bit DMA mask to ensure the above address will not be
used.
Cc: stable@vger.kernel.org
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Due to hardware errata in Aero controllers, reads to certain fusion
registers could intermittently return zero. This behavior is
transient in nature and subsequent reads will return valid value.
For Aero controllers, any calls to readl to read from certain
registers will be retried for maximum three times, if read returns
zero.
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Instead of the register address, pass the instance pointer to clear_intr
and read_fw_status_reg functions. This is done in preparation for adding
adapter type based checks in these functions in later patches of this
series.
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Identify all Aero controller PCI IDs with new adapter type.
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
In preparation for the new Aero series adapter type, all the places where
we check adapter type for Ventura series needs to include any later adapter
types.
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Most SCSI drivers want to enable "clustering", that is merging of
segments so that they might span more than a single page. Remove the
ENABLE_CLUSTERING define, and require drivers to explicitly set
DISABLE_CLUSTERING to disable this feature.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
NULL check before some freeing functions is not needed.
Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
Acked-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
In preparation to enabling -Wimplicit-fallthrough, mark switch cases where
we are expecting to fall through.
Notice that, in this particular case, I replaced "Fall thru" with a "Fall
through" annotation and added a dash as a token in order to separate the
"Fall through" annotation from the rest of the comment on the same line,
which is what GCC is expecting to find.
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Acked-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
In preparation to enabling -Wimplicit-fallthrough, mark switch cases where
we are expecting to fall through.
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Acked-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This patch adds support for MegaRAID Aero controller PCI IDs. Print a
message when a configurable secure type controller is encountered.
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The print related to number of VDs that a particular firmware supports is
misleading in some cases. Even though supportMaxExtLDs is set, certain
firmware profiles only supports upto 64VDs.
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
IOC INIT frame needs to be fired with a timeout of 180 seconds.
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
In megasas_init_adapter_fusion(), max_mfi_cmds is being calcuated as
(MEGASAS_FUSION_INTERNAL_CMDS + MEGASAS_FUSION_IOCTL_CMDS). max_mfi_cmds
can be used in megasas_configure_queue_sizes.
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Arnd Bergmann