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In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
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In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.
Notice that, in this particular case, I placed all the "Phase N - ..."
comments on the same line as its corresponding switch case. The same
way in which similar comments appear in drivers/scsi/ppa.c. This makes
it possible to place the "fall through" annotations at the bottom of
each switch case, which is what GCC is expecting to find.
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
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In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.
Addresses-Coverity-ID: 1056538 ("Missing break in switch")
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
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In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.
Notice that I replaced "Fall through !!!" with a "fall through"
annotation, which is what GCC is expecting to find.
Addresses-Coverity-ID: 114971 ("Missing break in switch")
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
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In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.
Addresses-Coverity-ID: 1357387 ("Missing break in switch")
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
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In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
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In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.
Notice that, in some cases, I replaced "FALLTHROUGH" with a "fall through"
annotation and then placed it at the bottom of the corresponding switch
case, which is what GCC is expecting to find.
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
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All mmiowb() invocations have been removed, so there's no need to keep
banging on about it.
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
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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>
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In preparation for using coccinelle to remove all mmiowb() instances
from drivers, remove all trailing comments since they won't be picked up
by spatch later on and will end up being preserved in the code.
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
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Currently support for 64-bit sector_t and blkcnt_t is optional on 32-bit
architectures. These types are required to support block device and/or
file sizes larger than 2 TiB, and have generally defaulted to on for
a long time. Enabling the option only increases the i386 tinyconfig
size by 145 bytes, and many data structures already always use
64-bit values for their in-core and on-disk data structures anyway,
so there should not be a large change in dynamic memory usage either.
Dropping this option removes a somewhat weird non-default config that
has cause various bugs or compiler warnings when actually used.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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The memory return by kzalloc() has already be set to zero, so remove
useless memset(0).
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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This patch adds an additional PHY initialization, required for M31 PHY when
used with Cadence UFS HC. A new compatible string has been added for this
purpose.
[mkp: nuke superfluous status return]
Signed-off-by: Jan Kotas <jank@cadence.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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The pointer value is initialized as &hba->vreg_info, and it's never
changed. It's not necessary to check the pointer is null or not.
Signed-off-by: Zeng Guangyue <zengguangyue@hisilicon.com>
Acked-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Fixes gcc '-Wunused-but-set-variable' warning:
drivers/scsi/qedf/qedf_fip.c: In function 'qedf_fcoe_send_vlan_req':
drivers/scsi/qedf/qedf_fip.c:22:6: warning:
variable 'fr_len' set but not used [-Wunused-but-set-variable]
It's never used since introduction and can be removed.
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Manish Rangankar <mrangankar@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Rename the functions pm8001_chip_is_our_interupt,
pm80xx_chip_is_our_interupt and function pointer is_our_interrupt to fix
spelling mistakes.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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When macro PM8001_USE_MSIX is defined there are redundant dead code calls
to pm8001_chip_intx_interrupt_{enable|disable} and pm8001_cr32.
Clean this up for the defined PM8001_USE_MSIX and undefined
PM8001_USE_MSIX cases.
[mkp: squashed two patches]
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Reviewed-by: Mukesh Ojha <mojha@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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This patch converts driver wait time from using msleep to
wair_event_timeout to prevent race condition.
Signed-off-by: Giridhar Malavali <gmalavali@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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This patch allows driver to unload using "modprobe -r" when FC-NVMe LUNs
are connected.
Signed-off-by: Giridhar Malavali <gmalavali@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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This patch removes redundant qla2x00_abort_all_cmds() during driver unload.
Signed-off-by: Anil Gurumurthy <agurumurthy@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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This patch sets remote_port_devloss value to 0. This indicates to FC-NVMe
transport that driver is unloading and transport should not retry.
Fixes: e476fe8af5ff ("scsi: qla2xxx: Fix unload when NVMe devices are configured")
Cc: stable@vger.kernel.org
Signed-off-by: Giridhar Malavali <gmalavali@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Clean up fcport list and loopid in one place and iterate through for loop.
Signed-off-by: Quinn Tran <qtran@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Add mutex protection to prevent driver from freeing the FW dump buffer
while the extraction is in progress.
[mkp: commit desc]
Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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If fw dump buffer size changes and there is an existing fw dump, then save
the old dump in the newly allocated buffer.
Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Recent ISPs have larger and more complex flash-write semantics
(secure-access and signing). The BSG interfaces support these semantics for
all ISPs and is exclusively used by QLogic user-space tools. Limit
flash-write operations to ISPs <= 25xx.
Signed-off-by: Andrew Vasquez <andrewv@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Commit e6f77540c067 ("scsi: qla2xxx: Fix an integer overflow in sysfs
code") incorrectly set 'optrom_region_size' to 'start+size', which can
overflow option-rom boundaries when 'start' is non-zero. Continue setting
optrom_region_size to the proper adjusted value of 'size'.
Fixes: e6f77540c067 ("scsi: qla2xxx: Fix an integer overflow in sysfs code")
Cc: stable@vger.kernel.org
Signed-off-by: Andrew Vasquez <andrewv@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Abort thread wakeups, on some wqe types, are not happening. The thread
wakeup logic is dependent upon the LPFC_DRIVER_ABORTED flag. However, on
these wqes, the completion handler running prior to the io completion
routine ends up clearing the flag.
Rework the wakeup logic to look at a non-null waitq element which must be
set if the abort thread is waiting. This is reverting the change in the
indicated patch.
Fixes: c2017260eea2d ("scsi: lpfc: Rework locking on SCSI io completion")
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>
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Reduce the default VMbus channel ring buffer size for storvsc SCSI devices
from 1 Mbyte to 128 Kbytes. Measurements show that ring buffer sizes above
128 Kbytes do not increase performance even at very high IOPS rates, so
don't waste the memory. Also remove the dependence on PAGE_SIZE, since the
ring buffer size should not change on architectures where PAGE_SIZE is not
4 Kbytes.
Signed-off-by: Michael Kelley <mikelley@microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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When the number of sub-channels offered by Hyper-V is >= the number of CPUs
in the VM, calculate the correct number of sub-channels. The current code
produces one too many.
This scenario arises only when the number of CPUs is artificially
restricted (for example, with maxcpus=<n> on the kernel boot line), because
Hyper-V normally offers a sub-channel count < number of CPUs. While the
current code doesn't break, the extra sub-channel is unbalanced across the
CPUs (for example, a total of 5 channels on a VM with 4 CPUs).
Signed-off-by: Michael Kelley <mikelley@microsoft.com>
Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Reviewed-by: Long Li <longli@microsoft.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Blacklist "Universal Xport" LUN. It's used for in-band storage array
management. Also add model to the rdac dh family.
Cc: Martin Wilck <mwilck@suse.com>
Cc: Hannes Reinecke <hare@suse.de>
Cc: NetApp RDAC team <ng-eseries-upstream-maintainers@netapp.com>
Cc: Christophe Varoqui <christophe.varoqui@opensvc.com>
Cc: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
Cc: Martin K. Petersen <martin.petersen@oracle.com>
Cc: SCSI ML <linux-scsi@vger.kernel.org>
Cc: DM ML <dm-devel@redhat.com>
Signed-off-by: Xose Vazquez Perez <xose.vazquez@gmail.com>
Reviewed-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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With FC-NVMe enabled, driver does not support T10 DIF/DIX. This patch
disables T10-PI information when ql2xnvmeenable is set.
Signed-off-by: Giridhar Malavali <gmalavali@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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This patch increases max_sgl_segments value from 128 to the maximum
supported which is 1024. Increasing max_sgl_segments will allow the driver
to support larger I/O sizes
[mkp: commit desc tweak]
Signed-off-by: Giridhar Malavali <gmalavali@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Driver maintains state machine for processing and completing switch
commands. This patch resets FCF_ASYNC_{SENT|ACTIVE} flag to indicate if the
previous command is active or sent, in order for next GPSC command to
advance the state machine.
[mkp: commit desc typo]
Signed-off-by: Giridhar Malavali <gmalavali@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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This patch sets QPair pointer to NULL to prevent abort command racing ahead
of normal command completion handling during scsi_done call.
Signed-off-by: Giridhar Malavali <gmalavali@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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This patch tries to address race condition between abort handler and
completion handler. When scsi command result is set by both abort and
completion handler, scsi_done() is only called after refcount on SRB
structure goes to zero. The abort handler sets this result prematurely even
when the refcount is non-zero value. Fix this by setting SCSI cmd->result
before scsi_done() is called.
Signed-off-by: Giridhar Malavali <gmalavali@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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This patch avoids that a kernel warning appears when smp_processor_id() is
called with preempt debugging enabled.
Cc: James Smart <james.smart@broadcom.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Remove those functions that are not called from outside the removed
functions.
Cc: James Smart <james.smart@broadcom.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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This patch does not change any functionality but avoids that the compiler
complains about set-but-not-used variables when building with W=1.
Cc: James Smart <james.smart@broadcom.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Arrays should be defined in .c files instead of in a header file. This
patch reduces the size of the lpfc kernel module.
Cc: James Smart <james.smart@broadcom.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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This patch avoids that the compiler warns about missing fall-through
annotation when building with W=1.
Cc: James Smart <james.smart@broadcom.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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This patch avoid that smatch complains about misleading indentation.
Cc: James Smart <james.smart@broadcom.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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This patch avoids that the compiler complains about missing declarations
when building with W=1.
Cc: James Smart <james.smart@broadcom.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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"<name>-fixed-regulator" device tree property can be safely removed because
below things are fixed or resolved,
1. "<name>-max-microamp" becomes optional property: Undefined
"<name>-max-microamp" will not cause initialization fail if
"<name>-fixed-regulator" is not defined.
2. Current switching operation (by regulator_set_load) now has rules:
Regulators will have undefined current limit if "<name>-fixed-regulator"
is not defined. But this is safe because only regulator which has
configured current limit from "<name>-max-microamp" property is allowed
to change its load.
Although "<name>-fixed-regulator" is not used in any dt-bindings in tree,
this patch is still safe for regulators already defined
"<name>-fixed-regulator". To be more clear, if a regulator defined
"<name>-fixed-regulator" before, the behavior difference after this patch
is,
1. "<name>-max-microamp":
If a regulator defined "<name>-fixed-regulator", it is not necessary
to define "<name>-max-microamp" property in device tree and it is
expected to have an undefined current limit, i.e., "max_uA" field
is zero in struct ufs_vreg. This is exactly the same as patched.
2. "vcc-supply-1p8" or volatge range settings:
* For vcc, vccq or vccq2, these three regulators shall not define
"<name>-fixed-regulator" because defining it will lead to
undefined voltage range and thus voltage switching will be
unexpected.
* For other regulators with undefined voltage range, voltage range
will be still undefined after patched.
Therefore this patch is safe for all existed regulators with
"<name>-fixed-regulator" property already defined.
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Acked-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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In dt-bindings for ufs, "<name>-max-microamp" property indicates current
limit and is mandatory if "<name>-fixed-regulator" is not defined on a
specified regulator.
However, in some platforms, regulators without "<name>-fixed-regulator"
property may not need to define their current limit because they may want
to define voltage range only for proper voltage switching in different
power modes, especially for vcc, vccq or vccq2.
Currently missing "<name>-max-microamp" property in device tree will lead
initialization to fail, thus such limitation shall be resolved to tolerate
this kind of regulators.
After resolving this, regulators without "<name>-max-microamp" property
will have undefined "max current" value, i.e., zero value in "max_uA" field
in struct ufs_vreg. Because we do bypass current switching operation (by
regulator_set_load) in case of undefined current limit, this patch shall be
safe.
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Acked-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Currently if a regulator has "<name>-fixed-regulator" property in device
tree, it will skip current limit initialization. This lead to a zero
"max_uA" value in struct ufs_vreg.
However, "regulator_set_load" operation shall be required on regulators
which have valid current limits, otherwise a zero "max_uA" set by
"regulator_set_load" may cause unexpected behavior when this regulator is
enabled or set as high power mode.
Similarly, in device's icc_level configuration flow, the target icc_level
shall be updated if regulator also has valid current limit, otherwise a
wrong icc_level will be calculated by zero "max_uA" and thus causes
unexpected results after it is written to device.
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Acked-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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For regulators used by UFS, vcc, vccq and vccq2 will have voltage range
initialized by ufshcd_populate_vreg(), however other regulators may have
undefined voltage range if dt-bindings have no such definition.
In above undefined case, both "min_uV" and "max_uV" fields in ufs_vreg
struct will be zero values and these values will be configured on
regulators in different power modes.
Currently this may have no harm if both "min_uV" and "max_uV" always keep
"zero values" because regulator_set_voltage() will always bypass such
invalid values and return "good" results.
However improper values shall be fixed to avoid potential bugs. Simply
bypass voltage configuration if voltage range is not defined.
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Acked-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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There are two fields related to regulator current limit in struct ufs_vreg:
"min_uA" and "max_uA".
"max_uA" is probed by "<name>-max-microamp" property from device tree and
used for
- regulator_set_load operations
- icc_level configuration in device
However "min_uA" field is not used anywhere, thus we can remove it.
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Reviewed-by: Marc Gonzalez <marc.w.gonzalez@free.fr>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Acked-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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The rc variable is not needed in bnx2fc_abts_cleanup(). Remove it and
just return SUCCESS.
[mkp: commit desc]
Signed-off-by: Ding Xiang <dingxiang@cmss.chinamobile.com>
Acked-by: Manish Rangankar <mrangankar@marvell.com>
Reviewed-by: Mukesh Ojha <mojha@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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The nvm_image is a large struct qedi_nvm_iscsi_image object of over 24K so
don't declare it on the stack just for a sizeof requirement; use sizeof on
struct qedi_nvm_iscsi_image instead.
Fixes: c77a2fa3ff8f ("scsi: qedi: Add the CRC size within iSCSI NVM image")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Manish Rangankar <mrangankar@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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