The current codebase makes use of the zero-length array language extension
to the C90 standard, but the preferred mechanism to declare variable-length
types such as these ones is a flexible array member[1][2], introduced in
C99:
struct foo {
int stuff;
struct boo array[];
};
By making use of the mechanism above, we will get a compiler warning in
case the flexible array does not occur last in the structure, which will
help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.
Also, notice that, dynamic memory allocations won't be affected by this
change:
"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]
This issue was found with the help of Coccinelle.
[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit 7649773293 ("cxgb3/l2t: Fix undefined behaviour")
Link: https://lore.kernel.org/r/20200224161406.GA21454@embeddedor
Reviewed-by: Lee Duncan <lduncan@suse.com>
Reviewed-by: Satish Kharat <satishkh@cisco.com>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Print the function name in which MPT command got timed out. This will
facilitate debugging in which path corresponding MPT command got timeout in
first failure instance of log itself.
Link: https://lore.kernel.org/r/20191226111333.26131-9-sreekanth.reddy@broadcom.com
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This improves mpt3sas driver default debug information collection and
allows for a higher percentage of issues being able to be resolved with a
first-time data capture. However, this improvement to balance the amount
of debug data captured with the performance of driver.
Enabled below print messages with out affecting the IO performance,
1. When task abort TM is received then print IO commands's timeout value
and how much time this command has been outstanding.
2. Whenever hard reset occurs then print from where this hard reset has
been issued.
3. Failure message should be displayed for failure scenarios without any
logging level.
4. Added a print after driver successfully register or unregistered a
target drive with the SML. This print will be useful for debugging the
issue where the drive addition or deletion is hanging at SML.
5. During driver load time print request, reply, sense and config page
pool's information such as its address, length and size. Also printed
sg_tablesize information.
Link: https://lore.kernel.org/r/20191226111333.26131-8-sreekanth.reddy@broadcom.com
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
When Firmware fault occurs then print in which path firmware fault has
occurred. This will be useful while debugging the firmware fault issues.
Link: https://lore.kernel.org/r/20191226111333.26131-7-sreekanth.reddy@broadcom.com
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Watchdog thread polls for IOC state every 1 second. If it detects that IOC
state is in CoreDump state then it immediately stops the IOs and also
clears the outstanding commands issued to the HBA firmware and then it will
poll for IOC state to be out of CoreDump state and once it detects that IOC
state is changed from CoreDump state to Fault state (or) CoreDumpTOSec
number of seconds are elapsed then it will issue host reset operation and
moves the IOC state to Operational state and resumes the IOs.
Whenever any TM is received from SML then if driver detects the IOC state
is in CoreDump state then it will wait for CoreDump state to be cleared and
will host reset operation.
Link: https://lore.kernel.org/r/20191226111333.26131-6-sreekanth.reddy@broadcom.com
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Renamed _base_after_reset_handler function to
_base_clear_outstanding_commands so that it can be used in multiple
scenarios with suitable name which matches with the operation it does.
Also renamed its child functions. No functional changes.
Link: https://lore.kernel.org/r/20191226111333.26131-4-sreekanth.reddy@broadcom.com
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Introduce function _scsih_nvme_shutdown() to issue IO Unit Control message
to IOC firmware with operation code 'shutdown'. This causes IOC firmware to
issue NVMe shutdown commands to all NVMe drives attached to it.
NVMe Shutdown:
NVMe devices need to have a specific shutdown sequence performed before
power is removed. For this, the IOC firmware needs to be notified when the
system is being shutdown. So during the system shutdown time, driver issues
an IO Unit Control request with operation code MPI26_CTRL_OP_SHUTDOWN to
inform firmware that a shutdown is initiated.
This shutdown command is issued only if NVMe devices are attached to the
controller.
During each NVMe device addition, driver reads pcie device page2 to get
shutdown latency (e.g. drive's RTD3 Entry Latency) and updates the max
latency value among the added NVMe drives in ioc->max_shutdown_latency.
This is used as the timeout value for IO Unit Control command at the time
of shutdown.
When a NVMe drive is removed and its shutdown latency matches which
ioc->max_shutdown_latency then ioc->max_shutdown_latency is updated to next
max value (by iterating over the list of available devices). If the
shutdown latency is 0, then default timeout is set to six seconds.
Link: https://lore.kernel.org/r/20191226111333.26131-3-sreekanth.reddy@broadcom.com
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
From an interrupt handler path memory may be allocated using
GFP_KERNEL, replace it with GFP_ATOMIC.
_base_interrupt->_scsih_io_done->_scsih_smart_predicted_fault
Link: https://lore.kernel.org/r/20191024152835.6177-1-thenzl@redhat.com
Signed-off-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Currently if user wishes to enable the host trace buffer during driver load
time, then user has to load the driver with module parameter
'diag_buffer_enable' set to one.
Alternatively now the user can enable host trace buffer by enabling the
following fields in manufacturing page11 in NVDATA (nvdata xml is used
while building HBA firmware image):
* HostTraceBufferMaxSizeKB - Maximum trace buffer size in KB that host can
allocate,
* HostTraceBufferMinSizeKB - Minimum trace buffer size in KB atleast host
should allocate,
* HostTraceBufferDecrementSizeKB - size by which host can reduce from
buffer size and retry the buffer allocation
when buffer allocation failed with previous
calculated buffer size.
The driver will register the trace buffer automatically without any module
parameter during boot time when above fields are enabled in manufacturing
page11 in HBA firmware.
Driver follows the following algorithm for enabling the host trace buffer
during driver load time:
* If user has loaded the driver with module parameter 'diag_buffer_enable'
set to one, then driver allocates 2MB buffer and registers this buffer
with HBA firmware for capturing the firmware trace logs.
* Else driver reads manufacture page11 data and checks whether
HostTraceBufferMaxSizeKB filed is zero or not?
- If HostTraceBufferMaxSizeKB is non-zero then driver tries to allocate
HostTraceBufferMaxSizeKB size of memory. If the buffer allocation is
successful, then it will register this buffer with HBA firmware, else
in a loop the driver will try again by reducing the current buffer size
with HostTraceBufferDecrementSizeKB size until memory allocation is
successful or buffer size falls below HostTraceBufferMinSizeKB. If the
memory allocation is successful, then the buffer will be registered
with the firmware. Else, if the buffer size falls below the
HostTraceBufferMinSizeKB, then driver won't register trace buffer with
HBA firmware.
- If HostTraceBufferMaxSizeKB is zero, then driver won't register trace
buffer with HBA firmware.
Link: https://lore.kernel.org/r/1568379890-18347-2-git-send-email-sreekanth.reddy@broadcom.com
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This patch provides a module parameter and sysfs interface to select
whether the queue depth for each device should be based on the
protocol-specific value set by the driver (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
driver default.
[mkp: tweaked commit desc]
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Move ASPM definitions and function prototypes from include/linux/pci-aspm.h
to include/linux/pci.h so users only need to include <linux/pci.h>:
PCIE_LINK_STATE_L0S
PCIE_LINK_STATE_L1
PCIE_LINK_STATE_CLKPM
pci_disable_link_state()
pci_disable_link_state_locked()
pcie_no_aspm()
No functional changes intended.
Link: https://lore.kernel.org/r/20190827095620.11213-1-kw@linux.com
Signed-off-by: Krzysztof Wilczynski <kw@linux.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
In some cases, like while performing extensive expander reset or phy reset,
user may observe that drives are not visible in OS. Driver's
firmware-worker thread is blocked for more than 120 seconds resulting in a
call trace.
1. Received target add event for Device A and hence driver has registered
this device to SML by calling sas_rphy_add(). SML has half added this
device and returned the control to the driver by quitting from
sas_rphy_add() API, and started some background scanning on this device A.
2. While background scanning is going on device A, driver has received SAS
DEVICE STATUS CHANGE EVENT with RC code "Internal device reset" event and
hence driver has set tm_busy flag for this Device A from FW worker thread
context. When tm_busy flag is set then driver return scsi commands with
device busy status asking the kernel to retry the command after some time.
So background scanning for device A will be waiting for this tm_busy to be
cleared.
3. Meanwhile driver has received a target add event for Device B and hence
driver called sas_rphy_add() API to register this device with SML. But
since background scanning for Device A is still pending and SML is not
quitting from sas_rphy_add(), the driver’s firmware worker thread got
blocked.
4. Now driver has received SAS DEVICE STATUS CHANGE EVENT with RC code
"Internal device reset complete" event. But as driver’s firmware worker
thread got blocked in Step3, it can’t process this event and it was not
clearing the tm_busy flag and deadlock occurred (where SML was waiting for
tm_busy flag to be cleared and our FW worker thread is waiting for SML to
quit from sas_device_rphy_add() API).
Same deadlock will be observed even if device B is getting removed in
step3. So to limit these types of deadlocks driver will process the SAS
DEVICE STATUS CHANGE EVENT events from ISR context instead of processing
this event from worker thread context. This improvement avoids above
deadlock.
Signed-off-by: Suganath Prabu <suganath-prabu.subramani@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This patch is to reduce the performance drop depth observed on SATA HDD
when ATA PT command is outstanding.
Driver returns IO commands with status "SAM_STAT_BUSY" whenever ATA PT
command is outstanding. With this, IO commands will be retried until this
outstanding ATA PT to complete and hence we will observe drop in
performance.
As the driver is completing the subsequent IOs commands with SAM_STAT_BUSY
status, these IOs has to go though the block layer. Hence it adds latency
to the IOs and large performance drop is observed.
So to reduce this performance dropp, added improvement in driver to return
the subsequent IOs with SCSI_MLQUEUE_DEVICE_BUSY status instead of
completing the IOs with SAM_STAT_BUSY status when ATA PT command is
outstanding. Sending command back with SCSI_MLQUEUE_DEVICE_BUSY does not go
through complete block layer stack (as scsi_done won't be called) SML will
immediately retry the command and this method will avoid latency of block
layer stack and the performance impact will be reduced.
On Local setup, ran 512k sequential read IO operation on HGST SATA drive
with existing driver & with this improvement drivers and here is the
result,
1. With existing driver: IOs are running at bandwidth of ~230 rMB/s and
whenever any ATA PT command is outstanding (e.g issued from systemd-udevd
daemon) then this bandwidth drops to ~150 rMB/s.
2. With this improvement driver: IOs are running at bandwidth of ~230 rMB/s
and whenever any ATA PT command is outstanding then this bandwidth drops to
just ~190 rMB/s.
Signed-off-by: Suganath Prabu <suganath-prabu.subramani@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Currently with sysfs parameter "drv_support_bitmap" driver exposes whether
driver supports toolbox memory move command or not.
And application should issue the toolbox memory move command only if driver
tell that memory move tool box command is supported through this sysfs
parameter.
In future we can utilize this sysfs parameter if any new feature is added
and need to notify the same to applications.
Signed-off-by: Suganath Prabu <suganath-prabu.subramani@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
If driver sees the NVMe drive with "DEVICE_BLOCKED" AccessStatus in its
PCIe Device Page0, then driver removes the drive from its internal list and
does not allow any IOCTL commands to be sent to the drive and will return
the IOCTLs with "-ENODEV" status.
The driver will now allow NVMe Encapsulated IOCTL issued to the NVMe device
with an access status of DEVICE_BLOCKED. This change allows the user to
flash new drive firmware online and revive the drive.
Add NVMe device only the driver's internal list even though the device is
in the blocked state so that the device will be visible to Apps. This way
Apps can send NVMe Encapsulated IOCTLs to this drive and bring the drive
online. This NVMe drive with DEVICE_BLOCKED access status won't added to
the SML, it will be added only in the driver's internal list.
[mkp: clarified desc]
Signed-off-by: Suganath Prabu <suganath-prabu.subramani@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
SES device of managed PCIe switch will be enumerated same as NVMe drives.
The device info type for this SES device is
MPI26_PCIE_DEVINFO_SCSI (0x4),
whereas the device info type for NVMe drives is
MPI26_PCIE_DEVINFO_NVME (0x3).
Based on this device info type driver determines whether the device is NVMe
drive or a SES device of a managed PCIe switch.
This SES device doesn't have the PCIe device page 2 information like NVMe
drives, so driver won't read PCIe device page 2 information for SES device.
This SES device uses only IEEE SGL's, So driver build's IEEE SGL's whenever
it receives any SCSI commands for this SES device.
Signed-off-by: Suganath Prabu <suganath-prabu.subramani@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
When using a virt_boundary_mask, as done for NVMe devices attached to
mpt3sas 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
mpt3sas 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 mpt3sas
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>
Acked-by: Suganath Prabu <suganath-prabu.subramani@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Support is easier with all driver parameters visible in sysfs. Also I've
replaced a constant with an octal permission.
Signed-off-by: Tomas Henzl <thenzl@redhat.com>
Acked-by: Suganath Prabu <suganath-prabu.subramani@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Enable interrupt coalescing only on high iops queues.
In ioc config page 1, offset 0x14 (ProductSpecific field) is used to
determine interrupt coalescing enabled/disabled on per reply descriptor
post queue group(8) basis. If 31st bit is zero, then interrupt coalescing
is enabled for all reply descriptor post queues. If 31st bit is set to one,
then user can enable/disable interrupt coalescing on per reply descriptor
post queue group(8) basis. So to enable interrupt coalescing only on first
reply descriptor post queue group (i.e. on high iops queues), set bit 0 and
31.
This configuration should reset during driver unload or shutdown to the
default settings. For this, the driver takes copy of default ioc page 1 and
copies back the default or unmodified ioc page1 during unload and
shutdown. This means that on next driver load (e.g. if older version driver
is loaded by user), current modified changes on ioc page1 won't take
effect.
Signed-off-by: Suganath Prabu S <suganath-prabu.subramani@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
In the IO submission path _base_get_msix_index is called twice. Initially
while getting the smid and subsequently while posting the request
descriptor (RD).
Refactor code to query msix index only while posting the request
descriptor. Save determined msix index in msix_io field.
Signed-off-by: Suganath Prabu S <suganath-prabu.subramani@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This code refactoring introduces function pointers.
Host uses Request Descriptors of different types for posting an entry onto
a request queue. Based on controller type and capabilities, host can also
use atomic descriptors other than normal descriptors. Using function
pointer will avoid if-else statements
Signed-off-by: Suganath Prabu S <suganath-prabu.subramani@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
During expander reset handling, the driver invokes kernel function
scsi_host_find_tag() to obtain outstanding requests associated with the
scsi host managed by the driver. Driver loops from tag value zero to hba
queue depth to obtain the outstanding scmds. But when blk-mq is enabled,
the block layer may return stale entry for one or more requests. This may
lead to kernel panic if the returned value is inaccessible or the memory
pointed by the returned value is reused.
Reference of upstream discussion:
https://patchwork.kernel.org/patch/10734933/
Instead of calling scsi_host_find_tag() API for each and every smid (smid
is tag +1) from one to shost->can_queue, now driver will call this API (to
obtain the outstanding scmd) only for those smid's which are outstanding at
the driver level.
Driver will determine whether this smid is outstanding at driver level by
looking into it's corresponding MPI request frame, if its MPI request frame
is empty, then it means that this smid is free and does not need to call
scsi_host_find_tag() for it. By doing this, driver will invoke
scsi_host_find_tag() for only those tags which are outstanding at the
driver level.
Driver will check whether particular MPI request frame is empty or not by
looking into the "DevHandle" field. If this field is zero then it means
that this MPI request is empty. For active MPI request DevHandle must be
non-zero.
Also driver will memset the MPI request frame once the corresponding scmd
is processed (i.e. just before calling
scmd->done function).
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Add Atlas PCIe Switch Management Port device PNPID,
Vendor Id: 0x1000
device Id: 0x00B2
This device is based on MPI 2.6 spec and it exposes one SES device to
accept management commands for the PCIe switch.
Signed-off-by: Suganath Prabu S <suganath-prabu.subramani@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Added device ID for NVMe Switch Adapter (Ambrosia).
VID: 0x1000
DID: 0x02B1
Signed-off-by: Suganath Prabu S <suganath-prabu.subramani@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
MPI Endpoint is a PCIe switch based on MPI2.
Renaming device ID macro from MPI2_MFGPAGE_DEVID_SAS2308_MPI_EP to
MPI2_MFGPAGE_DEVID_SWITCH_MPI_EP.
Signed-off-by: Suganath Prabu S <suganath-prabu.subramani@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.
Addresses-Coverity-ID: 1475400 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.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>
Adding flag "is_aero_ioc" to differentiate aero based controllers from
other gen35 controllers.
Signed-off-by: Suganath Prabu <suganath-prabu.subramani@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Display following warning message only upon detection of configurable
secure type controllers.
"HBA is in Configurable Secure mode"
[mkp: typos]
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This is to fix SYNC CACHE and START STOP command failures with
DID_NO_CONNECT during driver unload.
In driver's IO submission patch (i.e. in driver's .queuecommand()) driver
won't allow any SCSI commands to the IOC when ioc->remove_host flag is set
and hence SYNC CACHE commands which are issued to the target drives (where
write cache is enabled) during driver unload time is failed with
DID_NO_CONNECT status.
Now modified the driver to allow SYNC CACHE and START STOP commands to IOC,
even when remove_host flag is set.
Signed-off-by: Suganath Prabu <suganath-prabu.subramani@broadcom.com>
Reviewed-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Call sas_remove_host() before removing the target devices in the driver's
.remove() callback function(i.e. during driver unload time). So that
driver can provide a way to allow SYNC CACHE, START STOP unit commands
etc. (which are issued from SML) to the target drives during driver unload
time.
Once sas_remove_host() is called before removing the target drives then
driver can just clean up the resources allocated for target devices and no
need to call sas_port_delete_phy(), sas_port_delete() API's as these API's
internally called from sas_remove_host().
Signed-off-by: Suganath Prabu <suganath-prabu.subramani@broadcom.com>
Reviewed-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Add support for Aero/Sea controllers and add warning for configurable
secure type IOC.
Signed-off-by: Suganath Prabu <suganath-prabu.subramani@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This is mostly updates of the usual drivers: UFS, esp_scsi, NCR5380,
qla2xxx, lpfc, libsas, hisi_sas. In addition there's a set of mostly
small updates to the target subsystem a set of conversions to the
generic DMA API, which do have some potential for issues in the older
drivers but we'll handle those as case by case fixes. A new myrs for
the DAC960/mylex raid controllers to replace the block based DAC960
which is also being removed by Jens in this merge window. Plus the
usual slew of trivial 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 SCSI updates from James Bottomley:
"This is mostly updates of the usual drivers: UFS, esp_scsi, NCR5380,
qla2xxx, lpfc, libsas, hisi_sas.
In addition there's a set of mostly small updates to the target
subsystem a set of conversions to the generic DMA API, which do have
some potential for issues in the older drivers but we'll handle those
as case by case fixes.
A new myrs driver for the DAC960/mylex raid controllers to replace the
block based DAC960 which is also being removed by Jens in this merge
window.
Plus the usual slew of trivial changes"
[ "myrs" stands for "MYlex Raid Scsi". Obviously. Silly of me to even
wonder. There's also a "myrb" driver, where the 'b' stands for
'block'. Truly, somebody has got mad naming skillz. - Linus ]
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (237 commits)
scsi: myrs: Fix the processor absent message in processor_show()
scsi: myrs: Fix a logical vs bitwise bug
scsi: hisi_sas: Fix NULL pointer dereference
scsi: myrs: fix build failure on 32 bit
scsi: fnic: replace gross legacy tag hack with blk-mq hack
scsi: mesh: switch to generic DMA API
scsi: ips: switch to generic DMA API
scsi: smartpqi: fully convert to the generic DMA API
scsi: vmw_pscsi: switch to generic DMA API
scsi: snic: switch to generic DMA API
scsi: qla4xxx: fully convert to the generic DMA API
scsi: qla2xxx: fully convert to the generic DMA API
scsi: qla1280: switch to generic DMA API
scsi: qedi: fully convert to the generic DMA API
scsi: qedf: fully convert to the generic DMA API
scsi: pm8001: switch to generic DMA API
scsi: nsp32: switch to generic DMA API
scsi: mvsas: fully convert to the generic DMA API
scsi: mvumi: switch to generic DMA API
scsi: mpt3sas: switch to generic DMA API
...
Convert these uses to ioc_<level> where appropriate.
Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Suganath Prabu <suganath-prabu.subramani@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
These have misordered uses of __func__ and ioc->name that could mismatch
MPT3SAS_FMT and "%s: ".
Convert them to ioc_<level>.
Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Suganath Prabu <suganath-prabu.subramani@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Use a more common logging style.
Done using the perl script below and some typing
$ git grep --name-only -w MPT3SAS_FMT -- "*.c" | \
xargs perl -i -e 'local $/; while (<>) { s/\bpr_(info|err|notice|warn)\s*\(\s*MPT3SAS_FMT\s*("[^"]+"(?:\s*\\?\s*"[^"]+"\s*){0,5}\s*),\s*ioc->name\s*/ioc_\1(ioc, \2/g; print;}'
Miscellanea for these conversions:
o Coalesce formats
o Realign arguments
o Remove unnecessary parentheses
o Use casts to u64 instead of unsigned long long where appropriate
o Convert broken pr_info uses to pr_cont
o Fix broken format string concatenation with line continuations and
excess whitespace
Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Suganath Prabu <suganath-prabu.subramani@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
After bfcb79fca1 ("PCI/ERR: Run error recovery callbacks for all affected
devices"), AER errors are always cleared by the PCI core and drivers don't
need to do it themselves.
Remove calls to pci_cleanup_aer_uncorrect_error_status() from device
driver error recovery functions.
Signed-off-by: Oza Pawandeep <poza@codeaurora.org>
[bhelgaas: changelog, remove PCI core changes, remove unused variables]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This is mostly updates to the usual drivers: mpt3sas, lpfc, qla2xxx,
hisi_sas, smartpqi, megaraid_sas, arcmsr. In addition, with the
continuing absence of Nic we have target updates for tcmu and target
core (all with reviews and acks). The biggest observable change is
going to be that we're (again) trying to switch to mulitqueue as the
default (a user can still override the setting on the kernel command
line). Other major core stuff is the removal of the remaining
Microchannel drivers, an update of the internal timers and some
reworks of completion and result handling.
Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.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 updates to the usual drivers: mpt3sas, lpfc, qla2xxx,
hisi_sas, smartpqi, megaraid_sas, arcmsr.
In addition, with the continuing absence of Nic we have target updates
for tcmu and target core (all with reviews and acks).
The biggest observable change is going to be that we're (again) trying
to switch to mulitqueue as the default (a user can still override the
setting on the kernel command line).
Other major core stuff is the removal of the remaining Microchannel
drivers, an update of the internal timers and some reworks of
completion and result handling"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (203 commits)
scsi: core: use blk_mq_run_hw_queues in scsi_kick_queue
scsi: ufs: remove unnecessary query(DM) UPIU trace
scsi: qla2xxx: Fix issue reported by static checker for qla2x00_els_dcmd2_sp_done()
scsi: aacraid: Spelling fix in comment
scsi: mpt3sas: Fix calltrace observed while running IO & reset
scsi: aic94xx: fix an error code in aic94xx_init()
scsi: st: remove redundant pointer STbuffer
scsi: qla2xxx: Update driver version to 10.00.00.08-k
scsi: qla2xxx: Migrate NVME N2N handling into state machine
scsi: qla2xxx: Save frame payload size from ICB
scsi: qla2xxx: Fix stalled relogin
scsi: qla2xxx: Fix race between switch cmd completion and timeout
scsi: qla2xxx: Fix Management Server NPort handle reservation logic
scsi: qla2xxx: Flush mailbox commands on chip reset
scsi: qla2xxx: Fix unintended Logout
scsi: qla2xxx: Fix session state stuck in Get Port DB
scsi: qla2xxx: Fix redundant fc_rport registration
scsi: qla2xxx: Silent erroneous message
scsi: qla2xxx: Prevent sysfs access when chip is down
scsi: qla2xxx: Add longer window for chip reset
...
Currently this function is implemented in the scsi layer, but it's
actual place should be the block layer since T10-PI is a general
data integrity feature that is used in the nvme protocol as well.
Suggested-by: Christoph Hellwig <hch@lst.de>
Cc: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Max Gurtovoy <maxg@mellanox.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Avoids that warnings about the kernel headers appear when building with
W=1. Remove useless "@Returns - Nothing" clauses. Change "@Return - " into
"Return: ".
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Cc: Sathya Prakash <sathya.prakash@broadcom.com>
Cc: Chaitra P B <chaitra.basappa@broadcom.com>
Cc: Suganath Prabu Subramani <suganath-prabu.subramani@broadcom.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Split each of these functions in three functions - one function per reset
phase. This patch does not change any functionality but makes the code
easier to read.
Note: it is much easier to review the git diff -w output after having
applied this patch than by reviewing the patch itself.
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Cc: Sathya Prakash <sathya.prakash@broadcom.com>
Cc: Chaitra P B <chaitra.basappa@broadcom.com>
Cc: Suganath Prabu Subramani <suganath-prabu.subramani@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This patch avoids that gcc complains about switch/case fall-through
when building with W=1.
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Cc: Sathya Prakash <sathya.prakash@broadcom.com>
Cc: Chaitra P B <chaitra.basappa@broadcom.com>
Cc: Suganath Prabu Subramani <suganath-prabu.subramani@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This patch does not change any functionality.
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Cc: Sathya Prakash <sathya.prakash@broadcom.com>
Cc: Chaitra P B <chaitra.basappa@broadcom.com>
Cc: Suganath Prabu Subramani <suganath-prabu.subramani@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Modify the indentation such that smatch no longer complains about
inconsistent indenting.
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Cc: Sathya Prakash <sathya.prakash@broadcom.com>
Cc: Chaitra P B <chaitra.basappa@broadcom.com>
Cc: Suganath Prabu Subramani <suganath-prabu.subramani@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
When an ioctl is sent to FW, and if there is a controller reset issued
before ioctl gets completed, then in controller reset path all the pending
ioctl commands are terminated from "mpt3sas_ctl_reset_handler" function.
This will wake up the waiting ioctl commands in ioctl path and print
timeouts which are actually not timeouts.
Introduced "mpt3sas_base_check_cmd_timeout" function to check and print
whether command got timed out (or) terminated due to Host reset.
Signed-off-by: Chaitra P B <chaitra.basappa@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
While configuring of NVMe device handling, _pcie_device structure member
was accessed after its reference count is decremented/put. Hence modified
code to access member of _pcie_device structure before its reference count
is decremented/put.
Signed-off-by: Chaitra P B <chaitra.basappa@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
In _scsih_scan_finished driver should mark port_enable_cmd.status as
'command not used', instead base_cmds.status was marked as 'command not
used'. Update code to mark port_enable_cmd.status as 'command not used'.
Signed-off-by: Chaitra P B <chaitra.basappa@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Linux driver when receives Broadcast Asynchronous Event Notification (BAEN)
from the controller firmware, checks all pending I/Os at the driver level
and issues query task, abort task TMs. This is done in the driver to handle
drives which are connected with multiple initiators and undergoing target
resets. In the BAEN handling code, the I/Os issued to NVMe drives are also
handled and query task and abort task TMs are issued, which are not
necessary as there is no multi-initiator and no BAEN concept with NVMe
drives. Hence when the driver checks for pending I/Os it skips NVMe drives
at this moment.
Signed-off-by: Chaitra P B <chaitra.basappa@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
