During system resume, scsi_resume_device() decreases a request queue's
pm_only counter if the scsi device was quiesced before. But after that, if
the scsi device's RPM status is RPM_SUSPENDED, the pm_only counter is still
held (non-zero). Current SCSI resume hook only sets the RPM status of the
scsi_device and its request queue to RPM_ACTIVE, but leaves the pm_only
counter unchanged. This may make the request queue's pm_only counter remain
non-zero after resume hook returns, hence those who are waiting on the
mq_freeze_wq would never be woken up. Fix this by calling
blk_post_runtime_resume() if a sdev's RPM status was RPM_SUSPENDED.
(struct request_queue)0xFFFFFF815B69E938
pm_only = (counter = 2),
rpm_status = 0,
dev = 0xFFFFFF815B0511A0,
((struct device)0xFFFFFF815B0511A0)).power
is_suspended = FALSE,
runtime_status = RPM_ACTIVE,
(struct scsi_device)0xffffff815b051000
request_queue = 0xFFFFFF815B69E938,
sdev_state = SDEV_RUNNING,
quiesced_by = 0x0,
B::v.f_/task_0xFFFFFF810C246940
-000|__switch_to(prev = 0xFFFFFF810C246940, next = 0xFFFFFF80A49357C0)
-001|context_switch(inline)
-001|__schedule(?)
-002|schedule()
-003|blk_queue_enter(q = 0xFFFFFF815B69E938, flags = 0)
-004|generic_make_request(?)
-005|submit_bio(bio = 0xFFFFFF80A8195B80)
Link: https://lore.kernel.org/r/1588740936-28846-1-git-send-email-cang@codeaurora.org
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Can Guo <cang@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Calling ql_log() inside qla2x00_port_speed_show() is causing messages to be
output to the console for no particularly good reason. The sysfs read
routine should just return the information to userspace. The only reason
to log a message is when the port speed actually changes, and this already
occurs elsewhere.
Link: https://lore.kernel.org/r/20200504175416.15417-1-emilne@redhat.com
Fixes: 4910b524ac ("scsi: qla2xxx: Add support for setting port speed")
Cc: <stable@vger.kernel.org> # v5.1+
Reviewed-by: Lee Duncan <lduncan@suse.com>
Reviewed-by: Laurence Oberman <loberman@redhat.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Commit ed830385a2 ("scsi: ibmvfc: Avoid loss of all paths during SVC node
reboot") introduced a regression where when the client resets or re-enables
its CRQ with the hypervisor there is a chance that if the server side
doesn't issue its INIT handshake quick enough the client can issue an
Implicit Logout prior to doing an NPIV Login. The server treats this
scenario as a protocol violation and closes the CRQ on its end forcing the
client through a reset that gets the client host state and next host action
out of agreement leading to a BUG assert.
ibmvfc 30000003: Partner initialization complete
ibmvfc 30000002: Partner initialization complete
ibmvfc 30000002: Host partner adapter deregistered or failed (rc=2)
ibmvfc 30000002: Partner initialized
------------[ cut here ]------------
kernel BUG at ../drivers/scsi/ibmvscsi/ibmvfc.c:4489!
Oops: Exception in kernel mode, sig: 5 [#1]
LE PAGE_SIZE=64K MMU=Hash SMP NR_CPUS=2048 NUMA pSeries
Supported: No, Unreleased kernel
CPU: 16 PID: 1290 Comm: ibmvfc_0 Tainted: G OE X 5.3.18-12-default
NIP: c00800000d84a2b4 LR: c00800000d84a040 CTR: c00800000d84a2a0
REGS: c00000000cb57a00 TRAP: 0700 Tainted: G OE X (5.3.18-12-default)
MSR: 800000000282b033 <SF,VEC,VSX,EE,FP,ME,IR,DR,RI,LE> CR: 24000848 XER: 00000001
CFAR: c00800000d84a070 IRQMASK: 1
GPR00: c00800000d84a040 c00000000cb57c90 c00800000d858e00 0000000000000000
GPR04: 0000000000000000 0000000000000000 0000000000000000 00000000000000a0
GPR08: c00800000d84a074 0000000000000001 0000000000000014 c00800000d84d7d0
GPR12: 0000000000000000 c00000001ea28200 c00000000016cd98 0000000000000000
GPR16: c00800000d84b7b8 0000000000000000 0000000000000000 c00000542c706d68
GPR20: 0000000000000005 c00000542c706d88 5deadbeef0000100 5deadbeef0000122
GPR24: 000000000000000c 000000000000000b c00800000d852180 0000000000000001
GPR28: 0000000000000000 c00000542c706da0 c00000542c706860 c00000542c706828
NIP [c00800000d84a2b4] ibmvfc_work+0x3ac/0xc90 [ibmvfc]
LR [c00800000d84a040] ibmvfc_work+0x138/0xc90 [ibmvfc]
This scenario can be prevented by rejecting any attempt to send an Implicit
Logout if the client adapter is not logged in yet.
Link: https://lore.kernel.org/r/20200427214824.6890-1-tyreld@linux.ibm.com
Fixes: ed830385a2 ("scsi: ibmvfc: Avoid loss of all paths during SVC node reboot")
Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: Tyrel Datwyler <tyreld@linux.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
In NPIV environment, a NPIV host may use a queue pair created by base host
or other NPIVs, so the check for a queue pair created by this NPIV is not
correct, and can cause an abort to fail, which in turn means the NVME
command not returned. This leads to hang in nvme_fc layer in
nvme_fc_delete_association() which waits for all I/Os to be returned, which
is seen as hang in the application.
Link: https://lore.kernel.org/r/20200331104015.24868-3-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Arun Easi <aeasi@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
qlt_free_session_done() tries to post async PRLO / LOGO, and waits for the
completion of these async commands. If UNLOADING is set, this is doomed to
timeout, because the async logout command will never complete.
The only way to avoid waiting pointlessly is to fail posting these commands
in the first place if the driver is in UNLOADING state. In general,
posting any command should be avoided when the driver is UNLOADING.
With this patch, "rmmod qla2xxx" completes without noticeable delay.
Link: https://lore.kernel.org/r/20200421204621.19228-3-mwilck@suse.com
Fixes: 45235022da ("scsi: qla2xxx: Fix driver unload by shutting down chip")
Acked-by: Arun Easi <aeasi@marvell.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The purpose of the UNLOADING flag is to avoid port login procedures to
continue when a controller is in the process of shutting down. It makes
sense to set this flag before starting session teardown.
Furthermore, use atomic test_and_set_bit() to avoid the shutdown being run
multiple times in parallel. In qla2x00_disable_board_on_pci_error(), the
test for UNLOADING is postponed until after the check for an already
disabled PCI board.
Link: https://lore.kernel.org/r/20200421204621.19228-2-mwilck@suse.com
Fixes: 45235022da ("scsi: qla2xxx: Fix driver unload by shutting down chip")
Reviewed-by: Arun Easi <aeasi@marvell.com>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Reviewed-by: Roman Bolshakov <r.bolshakov@yadro.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The APIs scsi_host_block()/scsi_host_unblock() were recently added by
commit 2bb955840c ("scsi: core: add scsi_host_(block,unblock) helper
function") and so far the APIs are only used by: commit 3d3ca53b16
("scsi: aacraid: use scsi_host_(block,unblock) to block I/O").
However, from reading the code, I think the APIs don't really work for
aacraid, because, in the resume path of hibernation, when aac_suspend() ->
scsi_host_block() is called, scsi_device_quiesce() has set the state to
SDEV_QUIESCE, so aac_suspend() -> scsi_host_block() returns -EINVAL.
Fix the issue by allowing the state change.
Link: https://lore.kernel.org/r/1587170445-50013-1-git-send-email-decui@microsoft.com
Fixes: 2bb955840c ("scsi: core: add scsi_host_(block,unblock) helper function")
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Dexuan Cui <decui@microsoft.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
If the __copy_from_user function failed we need to call sg_remove_request
in sg_write.
Link: https://lore.kernel.org/r/610618d9-e983-fd56-ed0f-639428343af7@huawei.com
Acked-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: Wu Bo <wubo40@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
If the dxfer_len is greater than 256M then the request is invalid and we
need to call sg_remove_request in sg_common_write.
Link: https://lore.kernel.org/r/1586777361-17339-1-git-send-email-huawei.libin@huawei.com
Fixes: f930c70436 ("scsi: sg: only check for dxfer_len greater than 256M")
Acked-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: Li Bin <huawei.libin@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
drivers/scsi/qla2xxx/qla_dbg.c:2542:7: warning: The scope of the variable 'pbuf'
can be reduced. [variableScope]
drivers/scsi/qla2xxx/qla_init.c:3615:6: warning: Variable 'rc' is assigned a
value that is never used. [unreadVariable]
drivers/scsi/qla2xxx/qla_isr.c:81:11-29: WARNING: dma_alloc_coherent use in
rsp_els already zeroes out memory, so memset is not needed
drivers/scsi/qla2xxx/qla_mbx.c:4889:15-33: WARNING: dma_alloc_coherent use in
els_cmd_map already zeroes out memory, so memset is not needed
[mkp: added newline after variable declaration]
Link: https://lore.kernel.org/r/20200403084018.30766-2-njavali@marvell.com
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
If SATA_HOST is n, build fails:
drivers/scsi/hisi_sas/hisi_sas_main.o: In function
`hisi_sas_fill_ata_reset_cmd': hisi_sas_main.c:(.text+0x2500): undefined
reference to `ata_tf_to_fis'
Select SATA_HOST to fix this.
Link: https://lore.kernel.org/r/20200402085812.32948-1-yuehaibing@huawei.com
Fixes: bd322af15c ("ata: make SATA_PMP option selectable only if any SATA host driver is enabled")
Reported-by: Hulk Robot <hulkci@huawei.com>
Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: John Garry <john.garry@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This is a batch of changes that didn't make it in the initial pull
request because the lpfc series had to be rebased to redo an incorrect
split. It's basically driver updates to lpfc, target, bnx2fc and ufs
with the rest being minor updates except the sr_block_release one
which fixes a use after free introduced by the removal of the global
mutex in the first patch set.
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 a batch of changes that didn't make it in the initial pull
request because the lpfc series had to be rebased to redo an incorrect
split.
It's basically driver updates to lpfc, target, bnx2fc and ufs with the
rest being minor updates except the sr_block_release one which fixes a
use after free introduced by the removal of the global mutex in the
first patch set"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (35 commits)
scsi: core: Add DID_ALLOC_FAILURE and DID_MEDIUM_ERROR to hostbyte_table
scsi: ufs: Use ufshcd_config_pwr_mode() when scaling gear
scsi: bnx2fc: fix boolreturn.cocci warnings
scsi: zfcp: use fallthrough;
scsi: aacraid: do not overwrite retval in aac_reset_adapter()
scsi: sr: Fix sr_block_release()
scsi: aic7xxx: Remove more FreeBSD-specific code
scsi: mpt3sas: Fix kernel panic observed on soft HBA unplug
scsi: ufs: set device as active power mode after resetting device
scsi: iscsi: Report unbind session event when the target has been removed
scsi: lpfc: Change default SCSI LUN QD to 64
scsi: libfc: rport state move to PLOGI if all PRLI retry exhausted
scsi: libfc: If PRLI rejected, move rport to PLOGI state
scsi: bnx2fc: Update the driver version to 2.12.13
scsi: bnx2fc: Fix SCSI command completion after cleanup is posted
scsi: bnx2fc: Process the RQE with CQE in interrupt context
scsi: target: use the stack for XCOPY passthrough cmds
scsi: target: increase XCOPY I/O size
scsi: target: avoid per-loop XCOPY buffer allocations
scsi: target: drop xcopy DISK BLOCK LENGTH debug
...
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Merge tag 'block-5.7-2020-04-10' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
"Here's a set of fixes that should go into this merge window. This
contains:
- NVMe pull request from Christoph with various fixes
- Better discard support for loop (Evan)
- Only call ->commit_rqs() if we have queued IO (Keith)
- blkcg offlining fixes (Tejun)
- fix (and fix the fix) for busy partitions"
* tag 'block-5.7-2020-04-10' of git://git.kernel.dk/linux-block:
block: fix busy device checking in blk_drop_partitions again
block: fix busy device checking in blk_drop_partitions
nvmet-rdma: fix double free of rdma queue
blk-mq: don't commit_rqs() if none were queued
nvme-fc: Revert "add module to ops template to allow module references"
nvme: fix deadlock caused by ANA update wrong locking
nvmet-rdma: fix bonding failover possible NULL deref
loop: Better discard support for block devices
loop: Report EOPNOTSUPP properly
nvmet: fix NULL dereference when removing a referral
nvme: inherit stable pages constraint in the mpath stack device
blkcg: don't offline parent blkcg first
blkcg: rename blkcg->cgwb_refcnt to ->online_pin and always use it
nvme-tcp: fix possible crash in recv error flow
nvme-tcp: don't poll a non-live queue
nvme-tcp: fix possible crash in write_zeroes processing
nvmet-fc: fix typo in comment
nvme-rdma: Replace comma with a semicolon
nvme-fcloop: fix deallocation of working context
nvme: fix compat address handling in several ioctls
Pull NVMe fixes from Christoph.
* 'nvme-5.7' of git://git.infradead.org/nvme:
nvmet-rdma: fix double free of rdma queue
nvme-fc: Revert "add module to ops template to allow module references"
nvme: fix deadlock caused by ANA update wrong locking
nvmet-rdma: fix bonding failover possible NULL deref
nvmet: fix NULL dereference when removing a referral
nvme: inherit stable pages constraint in the mpath stack device
nvme-tcp: fix possible crash in recv error flow
nvme-tcp: don't poll a non-live queue
nvme-tcp: fix possible crash in write_zeroes processing
nvmet-fc: fix typo in comment
nvme-rdma: Replace comma with a semicolon
nvme-fcloop: fix deallocation of working context
nvme: fix compat address handling in several ioctls
The original patch was to resolve the lldd being able to be unloaded
while being used to talk to the boot device of the system. However, the
end result of the original patch is that any driver unload while a nvme
controller is live via the lldd is now being prohibited. Given the module
reference, the module teardown routine can't be called, thus there's no
way, other than manual actions to terminate the controllers.
Fixes: 863fbae929 ("nvme_fc: add module to ops template to allow module references")
Cc: <stable@vger.kernel.org> # v5.4+
Signed-off-by: James Smart <jsmart2021@gmail.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
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Merge tag 'pci-v5.7-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull pci updates from Bjorn Helgaas:
"Enumeration:
- Revert sysfs "rescan" renames that broke apps (Kelsey Skunberg)
- Add more 32 GT/s link speed decoding and improve the implementation
(Yicong Yang)
Resource management:
- Add support for sizing programmable host bridge apertures and fix a
related alpha Nautilus regression (Ivan Kokshaysky)
Interrupts:
- Add boot interrupt quirk mechanism for Xeon chipsets and document
boot interrupts (Sean V Kelley)
PCIe native device hotplug:
- When possible, disable in-band presence detect and use PDS
(Alexandru Gagniuc)
- Add DMI table for devices that don't use in-band presence detection
but don't advertise that correctly (Stuart Hayes)
- Fix hang when powering slots up/down via sysfs (Lukas Wunner)
- Fix an MSI interrupt race (Stuart Hayes)
Virtualization:
- Add ACS quirks for Zhaoxin devices (Raymond Pang)
Error handling:
- Add Error Disconnect Recover (EDR) support so firmware can report
devices disconnected via DPC and we can try to recover (Kuppuswamy
Sathyanarayanan)
Peer-to-peer DMA:
- Add Intel Sky Lake-E Root Ports B, C, D to the whitelist (Andrew
Maier)
ASPM:
- Reduce severity of common clock config message (Chris Packham)
- Clear the correct bits when enabling L1 substates, so we don't go
to the wrong state (Yicong Yang)
Endpoint framework:
- Replace EPF linkup ops with notifier call chain and improve locking
(Kishon Vijay Abraham I)
- Fix concurrent memory allocation in OB address region (Kishon Vijay
Abraham I)
- Move PF function number assignment to EPC core to support multiple
function creation methods (Kishon Vijay Abraham I)
- Fix issue with clearing configfs "start" entry (Kunihiko Hayashi)
- Fix issue with endpoint MSI-X ignoring BAR Indicator and Table
Offset (Kishon Vijay Abraham I)
- Add support for testing DMA transfers (Kishon Vijay Abraham I)
- Add support for testing > 10 endpoint devices (Kishon Vijay Abraham I)
- Add support for tests to clear IRQ (Kishon Vijay Abraham I)
- Add common DT schema for endpoint controllers (Kishon Vijay Abraham I)
Amlogic Meson PCIe controller driver:
- Add DT bindings for AXG PCIe PHY, shared MIPI/PCIe analog PHY (Remi
Pommarel)
- Add Amlogic AXG PCIe PHY, AXG MIPI/PCIe analog PHY drivers (Remi
Pommarel)
Cadence PCIe controller driver:
- Add Root Complex/Endpoint DT schema for Cadence PCIe (Kishon Vijay
Abraham I)
Intel VMD host bridge driver:
- Add two VMD Device IDs that require bus restriction mode (Sushma
Kalakota)
Mobiveil PCIe controller driver:
- Refactor and modularize mobiveil driver (Hou Zhiqiang)
- Add support for Mobiveil GPEX Gen4 host (Hou Zhiqiang)
Microsoft Hyper-V host bridge driver:
- Add support for Hyper-V PCI protocol version 1.3 and
PCI_BUS_RELATIONS2 (Long Li)
- Refactor to prepare for virtual PCI on non-x86 architectures (Boqun
Feng)
- Fix memory leak in hv_pci_probe()'s error path (Dexuan Cui)
NVIDIA Tegra PCIe controller driver:
- Use pci_parse_request_of_pci_ranges() (Rob Herring)
- Add support for endpoint mode and related DT updates (Vidya Sagar)
- Reduce -EPROBE_DEFER error message log level (Thierry Reding)
Qualcomm PCIe controller driver:
- Restrict class fixup to specific Qualcomm devices (Bjorn Andersson)
Synopsys DesignWare PCIe controller driver:
- Refactor core initialization code for endpoint mode (Vidya Sagar)
- Fix endpoint MSI-X to use correct table address (Kishon Vijay
Abraham I)
TI DRA7xx PCIe controller driver:
- Fix MSI IRQ handling (Vignesh Raghavendra)
TI Keystone PCIe controller driver:
- Allow AM654 endpoint to raise MSI-X interrupt (Kishon Vijay Abraham I)
Miscellaneous:
- Quirk ASMedia XHCI USB to avoid "PME# from D0" defect (Kai-Heng
Feng)
- Use ioremap(), not phys_to_virt(), for platform ROM to fix video
ROM mapping with CONFIG_HIGHMEM (Mikel Rychliski)"
* tag 'pci-v5.7-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (96 commits)
misc: pci_endpoint_test: remove duplicate macro PCI_ENDPOINT_TEST_STATUS
PCI: tegra: Print -EPROBE_DEFER error message at debug level
misc: pci_endpoint_test: Use full pci-endpoint-test name in request_irq()
misc: pci_endpoint_test: Fix to support > 10 pci-endpoint-test devices
tools: PCI: Add 'e' to clear IRQ
misc: pci_endpoint_test: Add ioctl to clear IRQ
misc: pci_endpoint_test: Avoid using module parameter to determine irqtype
PCI: keystone: Allow AM654 PCIe Endpoint to raise MSI-X interrupt
PCI: dwc: Fix dw_pcie_ep_raise_msix_irq() to get correct MSI-X table address
PCI: endpoint: Fix ->set_msix() to take BIR and offset as arguments
misc: pci_endpoint_test: Add support to get DMA option from userspace
tools: PCI: Add 'd' command line option to support DMA
misc: pci_endpoint_test: Use streaming DMA APIs for buffer allocation
PCI: endpoint: functions/pci-epf-test: Print throughput information
PCI: endpoint: functions/pci-epf-test: Add DMA support to transfer data
PCI: pciehp: Fix MSI interrupt race
PCI: pciehp: Fix indefinite wait on sysfs requests
PCI: endpoint: Fix clearing start entry in configfs
PCI: tegra: Add support for PCIe endpoint mode in Tegra194
PCI: sysfs: Revert "rescan" file renames
...
Here are 3 SPDX patches for 5.7-rc1.
One fixes up the SPDX tag for a single driver, while the other two go
through the tree and add SPDX tags for all of the .gitignore files as
needed.
Nothing too complex, but you will get a merge conflict with your current
tree, that should be trivial to handle (one file modified by two things,
one file deleted.)
All 3 of these have been in linux-next for a while, with no reported
issues other than the merge conflict.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'spdx-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx
Pull SPDX updates from Greg KH:
"Here are three SPDX patches for 5.7-rc1.
One fixes up the SPDX tag for a single driver, while the other two go
through the tree and add SPDX tags for all of the .gitignore files as
needed.
Nothing too complex, but you will get a merge conflict with your
current tree, that should be trivial to handle (one file modified by
two things, one file deleted.)
All three of these have been in linux-next for a while, with no
reported issues other than the merge conflict"
* tag 'spdx-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx:
ASoC: MT6660: make spdxcheck.py happy
.gitignore: add SPDX License Identifier
.gitignore: remove too obvious comments
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 DID_ALLOC_FAILURE and DID_MEDIUM_ERROR are missing from the
hostbyte_table, scsi debug logging prints their numeric values only.
Adding them to the hostbyte_table to allow the scsi debug log to print
those as strings.
Link: https://lore.kernel.org/r/CAMNNMLFtQOHsjWUMs+q_+z9XqQYZmR34ewoB-5LrCpzGp1Ppkw@mail.gmail.com
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nikhil Kshirsagar <nkshirsa@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
When scaling gear, use ufshcd_config_pwr_mode() instead of
ufshcd_change_power_mode() so that vops_pwr_change_notify(PRE_CHANGE)
can be utilized to allow vendors use customized settings before
changing power mode.
Link: https://lore.kernel.org/r/1581485910-8307-2-git-send-email-cang@codeaurora.org
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Can Guo <cang@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
drivers/scsi/bnx2fc/bnx2fc_hwi.c:1019:9-10: WARNING: return of 0/1 in function 'bnx2fc_pending_work' with return type bool
Return statements in functions returning bool should use
true/false instead of 1/0.
Generated by: scripts/coccinelle/misc/boolreturn.cocci
Fixes: 77331115e2 ("scsi: bnx2fc: Process the RQE with CQE in interrupt context")
CC: Javed Hasan <jhasan@marvell.com>
Acked-by: Javed Hasan <jhasan@marvell.com>
Signed-off-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
'retval' got assigned a value twice, causing the original value to be lost.
Link: https://lore.kernel.org/r/20200331084111.95039-1-hare@suse.de
Fixes: 3d3ca53b16 ("scsi: aacraid: use scsi_host_(block,unblock) to block I/O")
Reported-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Remove additional code for FreeBSD in aic7xxx_core.c, which is unneeded
since commit cca6cb8ad7 ("scsi: aic7xxx: Fix build using bare-metal
toolchain").
Link: https://lore.kernel.org/r/20200327191102.78554-1-alex.dewar@gmx.co.uk
Suggested-by: Martin Petersen <martin.petersen@oracle.com>
Signed-off-by: Alex Dewar <alex.dewar@gmx.co.uk>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Generic protection fault type kernel panic is observed when user performs
soft (ordered) HBA unplug operation while IOs are running on drives
connected to HBA.
When user performs ordered HBA removal operation, the kernel calls PCI
device's .remove() call back function where driver is flushing out all the
outstanding SCSI IO commands with DID_NO_CONNECT host byte and also unmaps
sg buffers allocated for these IO commands.
However, in the ordered HBA removal case (unlike of real HBA hot removal),
HBA device is still alive and hence HBA hardware is performing the DMA
operations to those buffers on the system memory which are already unmapped
while flushing out the outstanding SCSI IO commands and this leads to
kernel panic.
Don't flush out the outstanding IOs from .remove() path in case of ordered
removal since HBA will be still alive in this case and it can complete the
outstanding IOs. Flush out the outstanding IOs only in case of 'physical
HBA hot unplug' where there won't be any communication with the HBA.
During shutdown also it is possible that HBA hardware can perform DMA
operations on those outstanding IO buffers which are completed with
DID_NO_CONNECT by the driver from .shutdown(). So same above fix is applied
in shutdown path as well.
It is safe to drop the outstanding commands when HBA is inaccessible such
as when permanent PCI failure happens, when HBA is in non-operational
state, or when someone does a real HBA hot unplug operation. Since driver
knows that HBA is inaccessible during these cases, it is safe to drop the
outstanding commands instead of waiting for SCSI error recovery to kick in
and clear these outstanding commands.
Link: https://lore.kernel.org/r/1585302763-23007-1-git-send-email-sreekanth.reddy@broadcom.com
Fixes: c666d3be99 ("scsi: mpt3sas: wait for and flush running commands on shutdown/unload")
Cc: stable@vger.kernel.org #v4.14.174+
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Currently ufshcd driver assumes that bInitPowerMode parameter is not
changed by any vendors thus device power mode can be set as "Active" during
initialization.
According to UFS JEDEC specification, device power mode shall be "Active"
after HW Reset is triggered if the bInitPowerMode parameter in Device
Descriptor is default value.
By above description, we can set device power mode as "Active" after device
reset is triggered by vendor's callback. With this change, the link startup
performance can be improved in some cases by not setting link_startup_again
as true in ufshcd_link_startup().
Link: https://lore.kernel.org/r/20200327095835.10293-1-stanley.chu@mediatek.com
Reviewed-by: Can Guo <cang@codeaurora.org>
Reviewed-by: Asutosh Das <asutoshd@codeaurora.org>
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
If the daemon is restarted or crashes while logging out of a session, the
unbind session event sent by the kernel is not processed and is lost. When
the daemon starts again, the session can't be unbound because the daemon is
waiting for the event message. However, the kernel has already logged out
and the event will not be resent.
When iscsid restart is complete, logout session reports error:
Logging out of session [sid: 6, target: iqn.xxxxx, portal: xx.xx.xx.xx,3260]
iscsiadm: Could not logout of [sid: 6, target: iscsiadm -m node iqn.xxxxx, portal: xx.xx.xx.xx,3260].
iscsiadm: initiator reported error (9 - internal error)
iscsiadm: Could not logout of all requested sessions
Make sure the unbind event is emitted.
[mkp: commit desc and applied by hand since patch was mangled]
Link: https://lore.kernel.org/r/4eab1771-2cb3-8e79-b31c-923652340e99@huawei.com
Reviewed-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Wu Bo <wubo40@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Pull networking updates from David Miller:
"Highlights:
1) Fix the iwlwifi regression, from Johannes Berg.
2) Support BSS coloring and 802.11 encapsulation offloading in
hardware, from John Crispin.
3) Fix some potential Spectre issues in qtnfmac, from Sergey
Matyukevich.
4) Add TTL decrement action to openvswitch, from Matteo Croce.
5) Allow paralleization through flow_action setup by not taking the
RTNL mutex, from Vlad Buslov.
6) A lot of zero-length array to flexible-array conversions, from
Gustavo A. R. Silva.
7) Align XDP statistics names across several drivers for consistency,
from Lorenzo Bianconi.
8) Add various pieces of infrastructure for offloading conntrack, and
make use of it in mlx5 driver, from Paul Blakey.
9) Allow using listening sockets in BPF sockmap, from Jakub Sitnicki.
10) Lots of parallelization improvements during configuration changes
in mlxsw driver, from Ido Schimmel.
11) Add support to devlink for generic packet traps, which report
packets dropped during ACL processing. And use them in mlxsw
driver. From Jiri Pirko.
12) Support bcmgenet on ACPI, from Jeremy Linton.
13) Make BPF compatible with RT, from Thomas Gleixnet, Alexei
Starovoitov, and your's truly.
14) Support XDP meta-data in virtio_net, from Yuya Kusakabe.
15) Fix sysfs permissions when network devices change namespaces, from
Christian Brauner.
16) Add a flags element to ethtool_ops so that drivers can more simply
indicate which coalescing parameters they actually support, and
therefore the generic layer can validate the user's ethtool
request. Use this in all drivers, from Jakub Kicinski.
17) Offload FIFO qdisc in mlxsw, from Petr Machata.
18) Support UDP sockets in sockmap, from Lorenz Bauer.
19) Fix stretch ACK bugs in several TCP congestion control modules,
from Pengcheng Yang.
20) Support virtual functiosn in octeontx2 driver, from Tomasz
Duszynski.
21) Add region operations for devlink and use it in ice driver to dump
NVM contents, from Jacob Keller.
22) Add support for hw offload of MACSEC, from Antoine Tenart.
23) Add support for BPF programs that can be attached to LSM hooks,
from KP Singh.
24) Support for multiple paths, path managers, and counters in MPTCP.
From Peter Krystad, Paolo Abeni, Florian Westphal, Davide Caratti,
and others.
25) More progress on adding the netlink interface to ethtool, from
Michal Kubecek"
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2121 commits)
net: ipv6: rpl_iptunnel: Fix potential memory leak in rpl_do_srh_inline
cxgb4/chcr: nic-tls stats in ethtool
net: dsa: fix oops while probing Marvell DSA switches
net/bpfilter: remove superfluous testing message
net: macb: Fix handling of fixed-link node
net: dsa: ksz: Select KSZ protocol tag
netdevsim: dev: Fix memory leak in nsim_dev_take_snapshot_write
net: stmmac: add EHL 2.5Gbps PCI info and PCI ID
net: stmmac: add EHL PSE0 & PSE1 1Gbps PCI info and PCI ID
net: stmmac: create dwmac-intel.c to contain all Intel platform
net: dsa: bcm_sf2: Support specifying VLAN tag egress rule
net: dsa: bcm_sf2: Add support for matching VLAN TCI
net: dsa: bcm_sf2: Move writing of CFP_DATA(5) into slicing functions
net: dsa: bcm_sf2: Check earlier for FLOW_EXT and FLOW_MAC_EXT
net: dsa: bcm_sf2: Disable learning for ASP port
net: dsa: b53: Deny enslaving port 7 for 7278 into a bridge
net: dsa: b53: Prevent tagged VLAN on port 7 for 7278
net: dsa: b53: Restore VLAN entries upon (re)configuration
net: dsa: bcm_sf2: Fix overflow checks
hv_netvsc: Remove unnecessary round_up for recv_completion_cnt
...
Pull EFI updates from Ingo Molnar:
"The EFI changes in this cycle are much larger than usual, for two
(positive) reasons:
- The GRUB project is showing signs of life again, resulting in the
introduction of the generic Linux/UEFI boot protocol, instead of
x86 specific hacks which are increasingly difficult to maintain.
There's hope that all future extensions will now go through that
boot protocol.
- Preparatory work for RISC-V EFI support.
The main changes are:
- Boot time GDT handling changes
- Simplify handling of EFI properties table on arm64
- Generic EFI stub cleanups, to improve command line handling, file
I/O, memory allocation, etc.
- Introduce a generic initrd loading method based on calling back
into the firmware, instead of relying on the x86 EFI handover
protocol or device tree.
- Introduce a mixed mode boot method that does not rely on the x86
EFI handover protocol either, and could potentially be adopted by
other architectures (if another one ever surfaces where one
execution mode is a superset of another)
- Clean up the contents of 'struct efi', and move out everything that
doesn't need to be stored there.
- Incorporate support for UEFI spec v2.8A changes that permit
firmware implementations to return EFI_UNSUPPORTED from UEFI
runtime services at OS runtime, and expose a mask of which ones are
supported or unsupported via a configuration table.
- Partial fix for the lack of by-VA cache maintenance in the
decompressor on 32-bit ARM.
- Changes to load device firmware from EFI boot service memory
regions
- Various documentation updates and minor code cleanups and fixes"
* 'efi-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (114 commits)
efi/libstub/arm: Fix spurious message that an initrd was loaded
efi/libstub/arm64: Avoid image_base value from efi_loaded_image
partitions/efi: Fix partition name parsing in GUID partition entry
efi/x86: Fix cast of image argument
efi/libstub/x86: Use ULONG_MAX as upper bound for all allocations
efi: Fix a mistype in comments mentioning efivar_entry_iter_begin()
efi/libstub: Avoid linking libstub/lib-ksyms.o into vmlinux
efi/x86: Preserve %ebx correctly in efi_set_virtual_address_map()
efi/x86: Ignore the memory attributes table on i386
efi/x86: Don't relocate the kernel unless necessary
efi/x86: Remove extra headroom for setup block
efi/x86: Add kernel preferred address to PE header
efi/x86: Decompress at start of PE image load address
x86/boot/compressed/32: Save the output address instead of recalculating it
efi/libstub/x86: Deal with exit() boot service returning
x86/boot: Use unsigned comparison for addresses
efi/x86: Avoid using code32_start
efi/x86: Make efi32_pe_entry() more readable
efi/x86: Respect 32-bit ABI in efi32_pe_entry()
efi/x86: Annotate the LOADED_IMAGE_PROTOCOL_GUID with SYM_DATA
...
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Merge tag 'for-5.7/block-2020-03-29' of git://git.kernel.dk/linux-block
Pull block updates from Jens Axboe:
- Online capacity resizing (Balbir)
- Number of hardware queue change fixes (Bart)
- null_blk fault injection addition (Bart)
- Cleanup of queue allocation, unifying the node/no-node API
(Christoph)
- Cleanup of genhd, moving code to where it makes sense (Christoph)
- Cleanup of the partition handling code (Christoph)
- disk stat fixes/improvements (Konstantin)
- BFQ improvements (Paolo)
- Various fixes and improvements
* tag 'for-5.7/block-2020-03-29' of git://git.kernel.dk/linux-block: (72 commits)
block: return NULL in blk_alloc_queue() on error
block: move bio_map_* to blk-map.c
Revert "blkdev: check for valid request queue before issuing flush"
block: simplify queue allocation
bcache: pass the make_request methods to blk_queue_make_request
null_blk: use blk_mq_init_queue_data
block: add a blk_mq_init_queue_data helper
block: move the ->devnode callback to struct block_device_operations
block: move the part_stat* helpers from genhd.h to a new header
block: move block layer internals out of include/linux/genhd.h
block: move guard_bio_eod to bio.c
block: unexport get_gendisk
block: unexport disk_map_sector_rcu
block: unexport disk_get_part
block: mark part_in_flight and part_in_flight_rw static
block: mark block_depr static
block: factor out requeue handling from dispatch code
block/diskstats: replace time_in_queue with sum of request times
block/diskstats: accumulate all per-cpu counters in one pass
block/diskstats: more accurate approximation of io_ticks for slow disks
...
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Merge tag 'for-5.7/libata-2020-03-29' of git://git.kernel.dk/linux-block
Pull libata updates from Jens Axboe:
- Series from Bart, making the libata code smaller on PATA only setups.
This is useful for smaller/embedded use cases, and will help us move
some of those off drivers/ide.
- Kill unused BPRINTK() (Hannes)
- Add various Comet Lake ahci PCI ids (Kai-Heng, Mika)
- Fix for a double scsi_host_put() in error handling (John)
- Use scnprintf (Takashi)
- Assign OF node to the SCSI device (Linus Walleij)
* tag 'for-5.7/libata-2020-03-29' of git://git.kernel.dk/linux-block: (36 commits)
ata: make "libata.force" kernel parameter optional
ata: move ata_eh_analyze_ncq_error() & co. to libata-sata.c
ata: start separating SATA specific code from libata-eh.c
ata: move ata_sas_*() to libata-sata.c
ata: start separating SATA specific code from libata-scsi.c
ata: move sata_deb_timing_*() to libata-sata.c
ata: move ata_qc_complete_multiple() to libata-sata.c
ata: move sata_link_hardreset() to libata-sata.c
ata: move sata_link_{debounce,resume}() to libata-sata.c
ata: move *sata_set_spd*() to libata-sata.c
ata: move sata_scr_*() to libata-sata.c
ata: start separating SATA specific code from libata-core.c
ata: let compiler optimize out ata_eh_set_lpm() on non-SATA hosts
ata: let compiler optimize out ata_dev_config_ncq() on non-SATA hosts
ata: add CONFIG_SATA_HOST=n version of ata_ncq_enabled()
ata: separate PATA timings code from libata-core.c
ata: fix CodingStyle issues in PATA timings code
ata: remove EXPORT_SYMBOL_GPL()s not used by modules
ata: move EXPORT_SYMBOL_GPL()s close to exported code
ata: optimize ata_scsi_rbuf[] size
...
The default lun queue depth by the driver has been 30 for many years.
However, this value, when used with more recent hardware, has actually
throttled some tests that concentrate io on a lun.
Increase the default lun queue depth to 64.
Queue full handling, reported by the target, remains in effect and
unchanged.
Link: https://lore.kernel.org/r/20200323161935.40341-1-jsmart2021@gmail.com
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
After all PRLI retries are exhausted, move rport state machine back to
PLOGI state.
Link: https://lore.kernel.org/r/20200327060208.17104-3-skashyap@marvell.com
Signed-off-by: Javed Hasan <jhasan@marvell.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
If PRLI reject code indicates "rejected status", move rport state machine
back to PLOGI state.
Link: https://lore.kernel.org/r/20200327060208.17104-2-skashyap@marvell.com
Signed-off-by: Javed Hasan <jhasan@marvell.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Driver received a SCSI completion after it posted the cleanup request. This
leads to a problem that one ref count wasn't released leading to
flush_active_ios to get struck. The callback from libfc never returned and
other ports were not processed leading to APD.
Decrease the refcnt as well as try to complete if something is waiting for
completion.
Link: https://lore.kernel.org/r/20200327054849.15947-3-skashyap@marvell.com
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Filesystem goes to read-only after continuous error injection because RQE
was handled in deferred context, leading to mismatch between CQE and RQE.
Specifically, this patch makes the following changes:
- Process the RQE with CQE in interrupt context, before putting it into
the work queue.
- Producer and consumer indices are also updated in the interrupt context
to guarantee the the order of processing.
[mkp: fixed bad indentation]
Link: https://lore.kernel.org/r/20200327054849.15947-2-skashyap@marvell.com
Signed-off-by: Javed Hasan <jhasan@marvell.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Once fail happens during suspend and resume flow if the desired low power
link state is H8, link recovery is required for MediaTek UFS controller.
For resume flow, since power and clocks are already enabled before invoking
vendor's resume callback, simply using ufshcd_link_recovery() inside
callback is fine.
For suspend flow, the device power enters low power mode or is disabled
before suspend callback, thus ufshcd_link_recovery() can not be directly
used in vendor callback. One solution is to set the link to off state and
then ufshcd_host_reset_and_restore() will be executed by ufshcd_suspend().
Link: https://lore.kernel.org/r/20200327095329.10083-3-stanley.chu@mediatek.com
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Export ufshcd_link_recovery to allow vendors to recover failed link in
vendor's callbacks.
Link: https://lore.kernel.org/r/20200327095329.10083-2-stanley.chu@mediatek.com
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This change introduces a func ufshcd_set_clk_freq() to explicitly set clock
frequency so that it can be used in reset_and_restore path and in
ufshcd_scale_clks(). This change also cleans up the clock scaling error out
path.
[mkp: commit desc]
Link: https://lore.kernel.org/r/1585214742-5466-2-git-send-email-cang@codeaurora.org
Fixes: a3cd5ec55f ("scsi: ufs: add load based scaling of UFS gear")
Reviewed-by: Bean Huo <beanhuo@micron.com>
Acked-by: Avri Altman <Avri.Altman@wdc.com>
Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: Can Guo <cang@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
During code review, identified dss feature that was a prototype only and
was never productized in SLI3. They shouldn't be there and prevents reuse
of the command areas.
Remove any code in the driver to deal with dss, including code to deal with
fips, which is associated with the dss feature.
Link: https://lore.kernel.org/r/20200322181304.37655-12-jsmart2021@gmail.com
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Currently driver ktime stats, measuring code paths, is NVME-specific.
Convert the stats routines such that the code paths are generic, providing
status for NVME and SCSI. Added ktime stat calls in SCSI queuecommand and
cmpl routines.
Link: https://lore.kernel.org/r/20200322181304.37655-11-jsmart2021@gmail.com
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The cpu io statistics were capped by a hard define limit of 128. This
effectively was a max number of CPUs, not an actual CPU count, nor actual
CPU numbers which can be even larger than both of those values. This made
stats off/misleading and on large CPU count systems, wrong.
Fix the stats so that all CPUs can have a stats struct. Fix the looping
such that it loops by hdwq, finds CPUs that used the hdwq, and sum the
stats, then display.
Link: https://lore.kernel.org/r/20200322181304.37655-9-jsmart2021@gmail.com
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The AER interfaces to clear error status registers were a confusing mess:
- pci_cleanup_aer_uncorrect_error_status() cleared non-fatal errors
from the Uncorrectable Error Status register.
- pci_aer_clear_fatal_status() cleared fatal errors from the
Uncorrectable Error Status register.
- pci_cleanup_aer_error_status_regs() cleared the Root Error Status
register (for Root Ports), the Uncorrectable Error Status register,
and the Correctable Error Status register.
Rename them to make them consistent:
From To
---------------------------------------- -------------------------------
pci_cleanup_aer_uncorrect_error_status() pci_aer_clear_nonfatal_status()
pci_aer_clear_fatal_status() pci_aer_clear_fatal_status()
pci_cleanup_aer_error_status_regs() pci_aer_clear_status()
Since pci_cleanup_aer_error_status_regs() (renamed to
pci_aer_clear_status()) is only used within drivers/pci/, move the
declaration from <linux/aer.h> to drivers/pci/pci.h.
[bhelgaas: commit log, add renames]
Link: https://lore.kernel.org/r/d1310a75dc3d28f7e8da4e99c45fbd3e60fe238e.1585000084.git.sathyanarayanan.kuppuswamy@linux.intel.com
Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Kernel is crashing with the following stacktrace:
BUG: unable to handle kernel NULL pointer dereference at
00000000000005bc
IP: lpfc_nvme_register_port+0x1a8/0x3a0 [lpfc]
...
Call Trace:
lpfc_nlp_state_cleanup+0x2b2/0x500 [lpfc]
lpfc_nlp_set_state+0xd7/0x1a0 [lpfc]
lpfc_cmpl_prli_prli_issue+0x1f7/0x450 [lpfc]
lpfc_disc_state_machine+0x7a/0x1e0 [lpfc]
lpfc_cmpl_els_prli+0x16f/0x1e0 [lpfc]
lpfc_sli_sp_handle_rspiocb+0x5b2/0x690 [lpfc]
lpfc_sli_handle_slow_ring_event_s4+0x182/0x230 [lpfc]
lpfc_do_work+0x87f/0x1570 [lpfc]
kthread+0x10d/0x130
ret_from_fork+0x35/0x40
During target side fault injections, it is possible to hit the
NLP_WAIT_FOR_UNREG case in lpfc_nvme_remoteport_delete. A prior commit
fixed a rebind and delete race condition, but called lpfc_nlp_put
unconditionally. This triggered a deletion and the crash.
Fix by movng nlp_put to inside the NLP_WAIT_FOR_UNREG case, where the nlp
will be being unregistered/removed. Leave the reference if the flag isn't
set.
Link: https://lore.kernel.org/r/20200322181304.37655-8-jsmart2021@gmail.com
Fixes: b15bd3e621 ("scsi: lpfc: Fix nvme remoteport registration race conditions")
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Can Guo