be_cmd_get_initname pulls GET_HBA_NAME response of 276 bytes in embedded
WRB buffer of 236 bytes.
Use non-embedded functions to issue the IOCTL.
Signed-off-by: Jitendra Bhivare <jitendra.bhivare@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
beiscsi_modify_eq_delay is using embedded command to send request of 788
bytes in 236 bytes buffer. Non-embedded command needs to be used in such
cases.
Use mgmt_alloc_cmd_data fn modified to allow passing of subsystem. Use
mgmt_exec_nonemb_cmd fn modified to allow setting of callback.
Signed-off-by: Jitendra Bhivare <jitendra.bhivare@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
In beiscsi_dev_probe, allocated msi_name does not get freed and enabled
HW interrupts are not disabled in iscsi_host_add error case.
Add beiscsi_free_irqs fn to handle the cleanup in probe and disable port.
Signed-off-by: Jitendra Bhivare <jitendra.bhivare@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
mgmt_open_connection is expected to return tag not errno.
In error case, just return invalid tag 0.
Signed-off-by: Jitendra Bhivare <jitendra.bhivare@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The boot flags exported through sysfs was wrongly reverted to 2. Use
boot flag 3 required per spec.
Bit 0 Block valid flag
Bit 1 Firmware booting selected
Signed-off-by: Jitendra Bhivare <jitendra.bhivare@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Bump mpt3sas driver version to v16.100.00.00
Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@broadcom.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Adding PNP ID of Mercator i.e. SAS3616 HBA device. Its device ID is
0xD1 and vendor ID is 0x1000.
Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@broadcom.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Enclosure handles are not updated after host reset. As a result, driver
device structure is holding previously assigned enclosure handle which
is different from the enclosure handle populated in the corresponding
device page.
Modified the driver to update devices enclosure handles after host reset
to current value by referring the enclosure handles from corresponding
device pages
Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@broadcom.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Display chassis slot information along with other drive location
parameters such as slot number and connector name in the logs if
chassis slot validity bit is set in 'SAS Enclosure Page 0'.
Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@broadcom.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Updated MPI headers to v2.00.48
Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@broadcom.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Whenever an I/O for a RAID volume fails with IOCStatus
MPI2_IOCSTATUS_SCSI_IOC_TERMINATED and SCSIStatus equal to
(MPI2_SCSI_STATE_TERMINATED | MPI2_SCSI_STATE_NO_SCSI_STATUS) then
return the I/O to SCSI midlayer with "DID_RESET" (i.e. retry the IO
infinite times) set in the host byte.
Previously, the driver was completing the I/O with "DID_SOFT_ERROR"
which causes the I/O to be quickly retried. However, firmware needed
more time and hence I/Os were failing.
Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@broadcom.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
For Dev Handles whose value is less than HBA's phys count number, driver
would return HBA's SAS address value. As a result, for a Virtual SES
device the driver was returning the HBA's SAS address. Updated the
driver to return Virtual SES' SAS address.
[mkp: clarified commit message]
Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@broadcom.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
To reduce the memory footprint of the driver in the kdump kernel, we
apply the following settings when reset_devices is set:
1. Use single MSI-x vector.
2. Disable RDPQ mode.
3. Set sg_table_size to 32 by default.
4) Set SCSI IO Queue depth to 200.
[mkp: fixed commit message]
Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@broadcom.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
While removing Expander devices, we are removing expander device entry
from the list before freeing its child devices. While freeing child
device we are finding its parent device node as NULL and therefore we
are not freeing the child device's allocated data structures. Updated
the driver to remove the expander device from the list only after
freeing all its child devices.
[mkp: clarified commit message]
Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@broadcom.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Earlier Active Cable Exception event with reason code "Cable Degraded
(0x02))" was added only for Active Cable. Now this event is extended to
Passive cable too. Re-arranged display message accordingly.
Also added Cable Exception Event event for SAS3008 & SAS3108 HBAs
(i.e. MPI 2.5 spec supporting HBAs). Previously, this event was enabled
only for MPI 2.6 spec supporting HBA devices.
[mkp: typos]
Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@broadcom.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Since we have converted all the user of UFS_BIT() macro with the actual
bit position, let remove unused UFS_BIT()macro.
Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com>
Reviewed-by: Bart Van Assche <bart.vanassche@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
HOST_ERROR_INDICATOR and DEVICE_ERROR_INDICATOR are not used
anywhere. Also as per JESD223C specification, bit[7:4] are reserved.
Lets remove these #defines.
Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com>
Reviewed-by: Bart Van Assche <bart.vanassche@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Use actual bit position instead of UFS_BIT() macro. This patch also
changes bit-17 to meaningful #define.
This change is as per discussion here [1]
[1] -> https://lkml.org/lkml/2017/8/28/786
Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com>
Cc: Subhash Jadavani <subhashj@codeaurora.org>
Reviewed-by: Bart Van Assche <bart.vanassche@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Currently UFS HCI uses UFS_BIT() macro to get various bit position for
the hardware registers status bits. Which makes code longer instead of
shorter. This macro does not improve code readability as well. Lets
re-write these macro definition with the actual bit position.
Suggested-by: Bart Van Assche <Bart.VanAssche@wdc.com>
Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com>
Reviewed-by: Bart Van Assche <bart.vanassche@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Change version to 11.4.0.4
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The internal cfg flag is actually smaller, by 1 (for a partial page
sge), than the sg list maintained by the driver. Thus the check on sg
segments errored out when it shouldn't have
Ensure the check is +1
Note: having a value that is less than what it really is is bogus.
Correcting it now would be a significant rework. Add this item to the
list to be refactored in the merge with efct.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
When running NVME io as a NVME host, if the driver is unloaded there
would be oops in lpfc_sli4_issue_wqe.
When unloading, controllers are torn down and the transport initiates
set_property commands to reset the controller and issues aborts to
terminate existing io. The drivers nvme abort and fcp io submit
routines needed to recognize the driver is unloading and fail the new
requests. It didn't, resulting in the oops.
Revise the ls and fcp io submit routines to detect the unloading state
and properly handle their cleanup.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Support RDP and Multiple Frames
If the remote Nport is not logged in, the driver would not populate all
the descriptors in the RDP response payload. Doing so would create a
payload length that requires multiple frames due to exceeding the
default rx buffer size without an explicit login. Currently FC-LS
explicitly states the RDP response must be a single frame sequence.
Thus we did not violate the standard.
Recently, a modification to FC-LS was accepted which allows multi-frame
sequences and all vendors have indicated they are interoperable with the
change. As such, extend RDP support with the additional fields and send
a multi-frame sequence.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Before releasing nvme io back to the io stack for possible retry on
other paths, ensure the io termination is interlocked with the target
device by ensuring the entire ABTS-LS protocol is complete.
Additionally, FC-NVME ABTS-LS protocol does not use RRQ. Remove RRQ
behavior from ABTS-LS.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Firmware update fails with: status x17 add_status x56 on the final write
If multiple DMA buffers are used for the download, some firmware revs
have difficulty with signatures and crcs split across the dma buffer
boundaries. Resolve by making all writes be a single 4k page in length.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The driver is seeing a NULL pointer in lpfc_nvme_fcp_io_submit. This
was ultimately due to a transport AER being sent on a terminated
controller, thus some of the values were not set. In case we're in a
system without a corrected transport and in case a race condition occurs
where we enter the routine as the teardown is happening in a separate
thread, validate the parameters before starting the io.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The initial implementation of NVME didn't merge with NPIV support. As
such, there are several issues if NPIV is used with NVME. For now,
ensure that if NVME is enabled then NPIV is not enabled.
Support for NPIV with NVME will be added in the near future.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
if nvmet targetport registration fails, the driver encounters a NULL
pointer oops in lpfc_hb_timeout_handler.
To fix: if registration fails, ensure nvmet_support is cleared on the
port structure.
Also enhanced the log message on failure.
Cc: <stable@vger.kernel.org> # 4.12+
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The descriptions for lpfc_xri_split and lpfc_enable_fc4_type were
poor. Revise for better understanding:
lpfc_xri_split - Percentage of FCP XRI resources versus NVME
lpfc_enable_fc4_type - Enable FC4 Protocol support - FCP / NVME
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Always set ctxp->state to LPFC_NVMET_STE_ABORT if ABORT op gets called
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
There are several log messages that report abnormal terminations that by
default are marked warn. These are typically the result of failures due
to invalid controller state or abort completions. They are all natural
when a controller resets.
Unfortunately, as they are logged by default, it makes the admin very
concerned.
Convert the messages to Info.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The driver is encountering oops in lpfc_sli_calc_ring.
The driver is setting hba_wqidx for FCP based on the policy in use for
NVME. The two may not be the same. Change to set the wqidx based on the
FCP policy.
Cc: <stable@vger.kernel.org> # 4.12+
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Under heavy target nvme load duration, the lpfc irq handler is
encountering cpu lockup warnings.
Convert the driver to a shortened ISR handler which identifies the
interrupting condition then schedules a workq thread to process the
completion queue the interrupt was for. This moves all the real work
into the workq element.
As nvmet_fc upcalls are no longer in ISR context, don't set the feature
flags
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Need to make ktime samples more accurate
If ktime is turned on in the middle of an IO, the max calculation could
be misleading. Base sampling on the start time of the IO as opposed to
ktime_on.
Make ISR ktime timestamps be from when CQE is read instead of EQE.
Added additional sanity checks when deciding whether to accept an IO
sample or not.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Local Reject/Invalid RPI errors seen during discovery.
Temporary RPI cleanup was occurring regardless of SLI rev. It's only
necessary on SLI-4.
Adjust the test for whether cleanup is necessary.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Warning messages when NVME_TARGET_FC not defined on ppc builds
The lpfc_nvmet_replenish_context() function is only meaningful when NVME
target mode enabled. Surround the function body with ifdefs for target
mode enablement.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
In a link bounce scenario, a condition can occur where the discovery
engine swaps an ndlp structure (address change for an nport). While the
swap was successfully executed by the discovery engine, the driver did
not properly detect a change in the ndlp bound to the nvme rport. This
error resulted in the nvme host transport issuing an IO to the correct
nvme rport, but the lpfc driver addressed a ndlp with an NLP_UNUSED
status and failed the io. This resulting it it looking like there were
missing namespaces and applications failed due to io errors.
To fix, in lpfc_nvme_register_rport, rework the "rebind" case to break
the nvme rport<->ndlp association when the ndlp already has an
nrport. Then rebind the rport to the correct ndlp data and backpointers.
[mkp: typo]
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The driver crashes when attempting to use a freed ndpl pointer.
The pci_remove_one handler runs on a separate kernel thread. The order
of the removal is starting by freeing all of the ndlps and then
disabling interrupts. In between these two events the driver can still
receive an ELS and process it. When it tries to use the ndlp pointer
will be NULL
Change the order of the pci_remove_one vs disable interrupts so that
interrupts are disabled before the ndlp's are freed.
Cc: <stable@vger.kernel.org> # 4.12+
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
During pci hot plug, the kernel crashes in a list_add_call
The lookup by tag function will return null if the IOCB is out of range
or does not have the on txcmplq flag set.
Fix: Check for null return from lookup by tag.
Cc: <stable@vger.kernel.org> # 4.12+
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
During pci hot plug, the kernel crashes in timer management code.
The sli4 remove_one handler is not stoping the timers as it starts to
remove the port so that it can be swapped.
Fix: Stop the timers early in the handler routine.
Note: Fix in SLI-4 only. SLI-3 already stopped the timers properly.
Cc: <stable@vger.kernel.org> # 4.12+
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Gerry Morong <gerry.morong@microsemi.com>
Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Reviewed-by: Scott Teel <scott.teel@microsemi.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Fix a small cosmetic bug in a very rarely encountered error message that
can occur when a LD has a corrupted raid map.
Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Update the driver's PCI IDs.
Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Reviewed-by: Scott Teel <scott.teel@microsemi.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Remove unused variable sas_ha to clean up build warning
"unused variable sas_ha [-Wunused-variable]"
Fixes: 042ebd293b ("scsi: libsas: kill useless ha_event and do some cleanup")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Since the command type of UTRD in UFS 2.1 specification is the same with
UFS 2.0. And it assumes the future UFS specification will follow the
same definition.
Signed-off-by: kehuanlin <kehuanlin@pinecone.net>
Reviewed-by: Subhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Several configurable fields of the Device Descriptor and the Unit
Descriptors determine the Boot LUN status. The bBootEnable field and the
bBootLunEn attribute is set to zero by default, so the Boot LUN is
disabled by default.
At which point the scsi device add for Boot LUN will fail, but we can
continue to use the ufs device in fact. This failure shouldn't abort the
device boot.
Signed-off-by: Huanlin Ke <kehuanlin@pinecone.net>
Reviewed-by: Subhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Since right after the user copy, we are going to memset(&karg, 0,
sizeof(karg)), the copy_from_user is redundant
Signed-off-by: Meng Xu <mengxu.gatech@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Use *_pool_zalloc rather than *_pool_alloc followed by memset with 0.
Found by coccinelle spatch "api/alloc/pool_zalloc-simple.cocci"
Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
Acked-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Use *_pool_zalloc rather than *_pool_alloc followed by memset with 0.
Found by coccinelle spatch "api/alloc/pool_zalloc-simple.cocci"
Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
Acked-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Device handlers are optional, and for some handlers like ALUA only
implemented for certain device types. So suppress any errors for
unsupported devices.
Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Rather than having each device handler implementing their own error
mapping, have the ->attach() call return a SCSI_DH_XXX error code and
implement the mapping in scsi_dh_handler_attach().
Suggested-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Reporting a maximum number of blocks that is not aligned on the device
physical size would cause a large write same request to be split into
physically unaligned chunks by __blkdev_issue_write_zeroes() and
__blkdev_issue_write_same(), even if the caller of these functions took
care to align its request to physical sectors.
Make sure the maximum reported is aligned to the device physical block
size. This is only an optional optimization for regular disks, but this
is mandatory to avoid failure of large write same requests directed at
sequential write required zones of host-managed ZBC disks.
[mkp: tweaked commit message]
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Reviewed-by: Bart Van Assche <bart.vanassche@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Set PCIe relaxed ordering bits in FW_IQ_CMD if relaxed ordering is
enabled in the PCIe device.
Signed-off-by: Varun Prakash <varun@chelsio.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
csk is always null on the error return path and so the non-null check
and call to cxgbi_sock_closed on csk is redundant and can be removed.
Detected by: CoverityScan CID#114329 ("Logically dead code")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Varun Prakash <varun@chelsio.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Events will be added to defer_q list when setting ha->status to
SAS_HA_DRAINING. Events will be called after drain workqueue.
Those events are added to the head of list, but they are scanned one by
one from the head to the tail, which will cause those events be called
in the reverse order of being added. So change list_add to list_add_tail
in function sas_queue_work.
Signed-off-by: chenxiang <chenxiang66@hisilicon.com>
Signed-off-by: Jason Yan <yanaijie@huawei.com>
CC: John Garry <john.garry@huawei.com>
CC: Johannes Thumshirn <jthumshirn@suse.de>
CC: Ewan Milne <emilne@redhat.com>
CC: Christoph Hellwig <hch@lst.de>
CC: Tomas Henzl <thenzl@redhat.com>
CC: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Rename function notify_port_event() to sas_notify_port_event(), which
will be consistent with sas_notify_phy_event().
Signed-off-by: Jason Yan <yanaijie@huawei.com>
CC: John Garry <john.garry@huawei.com>
CC: Johannes Thumshirn <jthumshirn@suse.de>
CC: Ewan Milne <emilne@redhat.com>
CC: Christoph Hellwig <hch@lst.de>
CC: Tomas Henzl <thenzl@redhat.com>
CC: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The ha_event now has only one event HAE_RESET, and this event does
nothing. Kill it and do some cleanup.
This is a preparation for enhance libsas hotplug feature in the next
patches.
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
CC: Johannes Thumshirn <jthumshirn@suse.de>
CC: Ewan Milne <emilne@redhat.com>
CC: Christoph Hellwig <hch@lst.de>
CC: Tomas Henzl <thenzl@redhat.com>
CC: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
When a NETDEV_UNREGISTER notification is received the network device is
_deleted_ after the callback returns. So we cannot use a workqueue
here, as this would cause an inversion when removing the device as the
netdev is already gone. This manifests with a nasty warning during
shutdown:
sysfs group ffffffff81eff0e0 not found for kobject 'fc_host7'
So open-code fcoe_destroy_work() when receiving the notification to
avoid this inversion.
Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Lee Duncan <lduncan@suse.com>
Acked-by: Johannes Thumshirn <jth@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Separate out fcoe_vport_remove() from fcoe_destroy_work(). Required for
the next patch.
Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Lee Duncan <lduncan@suse.com>
Acked-by: Johannes Thumshirn <jth@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This closes a possible race condition in _fcoe_create() where we drop
the rtnl_lock() before calling fcoe_interface_remove().
Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Lee Duncan <lduncan@suse.com>
Acked-by: Johannes Thumshirn <jth@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Don't populate const arrays on the stack, instead make them static.
Makes the object code smaller by over 740 bytes.
Before:
text data bss dec hex filename
3840 208 0 4048 fd0 drivers/scsi/ufs/tc-dwc-g210.o
After:
text data bss dec hex filename
2679 624 0 3303 ce7 drivers/scsi/ufs/tc-dwc-g210.o
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Bart Van Assche <bart.vanassche@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Pointers bnx2i_cmd are set but never used, so they can be removed.
Signed-off-by: Christos Gkekas <chris.gekas@gmail.com>
Acked-by: Manish Rangankar <Manish.Rangankar@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The pointer eqe is always non-null inside the while loop, so the check
to see if eqe is NULL is redudant and hence can be removed.
Detected by CoverityScan CID#1248693 ("Logically Dead Code")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
A tiny update: one patch corrects a Kconfig problem with the shift of
the SAS SMP code to BSG and the other removes a vestige of user space
target mode.
Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2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=nBuB
-----END PGP SIGNATURE-----
Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"A tiny update: one patch corrects a Kconfig problem with the shift of
the SAS SMP code to BSG and the other removes a vestige of user space
target mode"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: scsi_transport_sas: select BLK_DEV_BSGLIB
scsi: Remove Scsi_Host.uspace_req_q
- removal of the old dma_alloc_noncoherent interface
- remove unused flags to dma_declare_coherent_memory
- restrict OF DMA configuration to specific physical busses
- use the iommu mailing list for dma-mapping questions and
patches
-----BEGIN PGP SIGNATURE-----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=qHNs
-----END PGP SIGNATURE-----
Merge tag 'dma-mapping-4.14' of git://git.infradead.org/users/hch/dma-mapping
Pull dma-mapping updates from Christoph Hellwig:
- removal of the old dma_alloc_noncoherent interface
- remove unused flags to dma_declare_coherent_memory
- restrict OF DMA configuration to specific physical busses
- use the iommu mailing list for dma-mapping questions and patches
* tag 'dma-mapping-4.14' of git://git.infradead.org/users/hch/dma-mapping:
dma-coherent: fix dma_declare_coherent_memory() logic error
ARM: imx: mx31moboard: Remove unused 'dma' variable
dma-coherent: remove an unused variable
MAINTAINERS: use the iommu list for the dma-mapping subsystem
dma-coherent: remove the DMA_MEMORY_MAP and DMA_MEMORY_IO flags
dma-coherent: remove the DMA_MEMORY_INCLUDES_CHILDREN flag
of: restrict DMA configuration
dma-mapping: remove dma_alloc_noncoherent and dma_free_noncoherent
i825xx: switch to switch to dma_alloc_attrs
au1000_eth: switch to dma_alloc_attrs
sgiseeq: switch to dma_alloc_attrs
dma-mapping: reduce dma_mapping_error inline bloat
First, number of CPUs can't be negative number.
Second, different signnnedness leads to suboptimal code in the following
cases:
1)
kmalloc(nr_cpu_ids * sizeof(X));
"int" has to be sign extended to size_t.
2)
while (loff_t *pos < nr_cpu_ids)
MOVSXD is 1 byte longed than the same MOV.
Other cases exist as well. Basically compiler is told that nr_cpu_ids
can't be negative which can't be deduced if it is "int".
Code savings on allyesconfig kernel: -3KB
add/remove: 0/0 grow/shrink: 25/264 up/down: 261/-3631 (-3370)
function old new delta
coretemp_cpu_online 450 512 +62
rcu_init_one 1234 1272 +38
pci_device_probe 374 399 +25
...
pgdat_reclaimable_pages 628 556 -72
select_fallback_rq 446 369 -77
task_numa_find_cpu 1923 1807 -116
Link: http://lkml.kernel.org/r/20170819114959.GA30580@avx2
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
memset32() can be used to initialise these three arrays. Minor code
footprint reduction.
Link: http://lkml.kernel.org/r/20170720184539.31609-8-willy@infradead.org
Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
Cc: "James E.J. Bottomley" <jejb@linux.vnet.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: David Miller <davem@davemloft.net>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Russell King <rmk+kernel@armlinux.org.uk>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This is mostly updates of the usual suspects: lpfc, qla2xxx, hisi_sas, megaraid_sas, zfcp and a host of minor updates.
The major driver change here is the elimination of the block based
cciss driver in favour of the SCSI based hpsa driver (which now drives
all the legacy cases cciss used to be required for). Plus a reset
handler clean up and the redo of the SAS SMP handler to use bsg lib.
Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2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=nQUG
-----END PGP SIGNATURE-----
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 suspects: lpfc, qla2xxx, hisi_sas,
megaraid_sas, zfcp and a host of minor updates.
The major driver change here is the elimination of the block based
cciss driver in favour of the SCSI based hpsa driver (which now drives
all the legacy cases cciss used to be required for). Plus a reset
handler clean up and the redo of the SAS SMP handler to use bsg lib"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (279 commits)
scsi: scsi-mq: Always unprepare before requeuing a request
scsi: Show .retries and .jiffies_at_alloc in debugfs
scsi: Improve requeuing behavior
scsi: Call scsi_initialize_rq() for filesystem requests
scsi: qla2xxx: Reset the logo flag, after target re-login.
scsi: qla2xxx: Fix slow mem alloc behind lock
scsi: qla2xxx: Clear fc4f_nvme flag
scsi: qla2xxx: add missing includes for qla_isr
scsi: qla2xxx: Fix an integer overflow in sysfs code
scsi: aacraid: report -ENOMEM to upper layer from aac_convert_sgraw2()
scsi: aacraid: get rid of one level of indentation
scsi: aacraid: fix indentation errors
scsi: storvsc: fix memory leak on ring buffer busy
scsi: scsi_transport_sas: switch to bsg-lib for SMP passthrough
scsi: smartpqi: remove the smp_handler stub
scsi: hpsa: remove the smp_handler stub
scsi: bsg-lib: pass the release callback through bsg_setup_queue
scsi: Rework handling of scsi_device.vpd_pg8[03]
scsi: Rework the code for caching Vital Product Data (VPD)
scsi: rcu: Introduce rcu_swap_protected()
...
Pull parisc updates from Helge Deller:
"Major changes include:
- Full support of the firmware Page Deallocation Table with
MADV_HWPOISON and MADV_SOFT_OFFLINE. A kernel thread scans
regularily for new bad memory pages.
- Full support for self-extracting kernel.
- Added UBSAN support.
- Lots of section mismatch fixes across all parisc drivers.
- Added examples for %pF and %pS usage in printk-formats.txt"
* 'parisc-4.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: (28 commits)
printk-formats.txt: Add examples for %pF and %pS usage
parisc: Fix up devices below a PCI-PCI MegaRAID controller bridge
parisc/core: Fix section mismatches
parisc/ipmi_si_intf: Fix section mismatches on parisc platform
parisc/input/hilkbd: Fix section mismatches
parisc/net/lasi_82596: Fix section mismatches
parisc/serio: Fix section mismatches in gscps2 and hp_sdc drivers
parisc: Fix section mismatches in parisc core drivers
parisc/parport_gsc: Fix section mismatches
parisc/scsi/lasi700: Fix section mismatches
parisc/scsi/zalon: Fix section mismatches
parisc/8250_gsc: Fix section mismatches
parisc/mux: Fix section mismatches
parisc/sticore: Fix section mismatches
parisc/harmony: Fix section mismatches
parisc: Wire up support for self-extracting kernel
parisc: Make existing core files reuseable for bootloader
parisc: Add core code for self-extracting kernel
parisc: Enable UBSAN support
parisc/random: Add machine specific randomness
...
Without CONFIG_BLK_DEV_BSGLIB, we get a link error here:
drivers/scsi/scsi_transport_sas.o: In function `sas_bsg_initialize':
scsi_transport_sas.c:(.text+0xcc0): undefined reference to `bsg_setup_queue'
scsi_transport_sas.c:(.text+0xd10): undefined reference to `bsg_setup_queue'
drivers/scsi/scsi_transport_sas.o: In function `sas_smp_dispatch':
scsi_transport_sas.c:(.text+0xe8c): undefined reference to `bsg_job_done'
This modifies the Kconfig 'select' statement accordingly, and matching
what we do for the other two scsi_transport implementations that use
bsglib.
Fixes: 651a013649 ("scsi: scsi_transport_sas: switch to bsg-lib for SMP passthrough")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
A patch I wrote myself several years ago removed SCSI target support
from the code under drivers/scsi. That patch removed the code that sets
uspace_req_q to a non-NULL value. Hence also remove the code that
depends on uspace_req_q != NULL.
References: commit 0664652513 ("tgt: removal")
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.de>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
DMA_MEMORY_IO was never used in the tree, so remove it. That means there is
no need for the DMA_MEMORY_MAP flag either now, so remove it as well and
change dma_declare_coherent_memory to return a normal errno value.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Marek Szyprowski <m.szyprowski@samsung.com>
One of the two scsi-mq functions that requeue a request unprepares a
request before requeueing (scsi_io_completion()) but the other function
not (__scsi_queue_insert()). Make sure that a request is unprepared
before requeuing it.
Fixes: commit d285203cf6 ("scsi: add support for a blk-mq based I/O path.")
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Damien Le Moal <damien.lemoal@wdc.com>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Make these two member variables available in debugfs such that their
value can be verified by kernel developers. An example of the new
output:
ffff8804a513d480 {.op=READ, .cmd_flags=META|PRIO, .rq_flags=MQ_INFLIGHT|DONTPREP|IO_STAT|STATS, .atomic_flags=STARTED, .tag=17, .internal_tag=-1, .cmd=Read(10) 28 00 08 81 32 38 00 00 08 00, .retries=0, allocated 0.010 s ago}
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Requests are unprepared and reprepared when being requeued. Avoid that
requeuing resets .jiffies_at_alloc and .retries by initializing these
two member variables from inside scsi_initialize_rq() and by preserving
both member variables when preparing a request. This patch affects the
requeuing behavior of both the legacy scsi and the scsi-mq code paths.
Reported-by: Brian King <brking@linux.vnet.ibm.com>
References: https://lkml.org/lkml/2017/8/18/923 ("Re: [BUG][bisected 270065e] linux-next fails to boot on powerpc")
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Brian King <brking@linux.vnet.ibm.com>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
If a pass-through request is submitted then blk_get_request()
initializes that request by calling scsi_initialize_rq(). Also call this
function for filesystem requests. Introduce CMD_INITIALIZED to keep
track of whether or not a request has already been initialized.
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Brian King <brking@linux.vnet.ibm.com>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
After relogin is sucessful, "send_els_logo" flag needs to be
reinitialized. This will allow next re-login to happen successfully.
In target mode, this flag was not reset correctly, causing IO's failure
during reset recovery and port ON/OFF test cases from initiator.
Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Sawan Chandak <sawan.chandak@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Darren Trap <darren.trap@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Since commit 7401bc18d1 ("scsi: qla2xxx: Add FC-NVMe command
handling") we make use of 'struct nvmefc_fcp_req' in
qla24xx_nvme_iocb_entry() without including linux/nvme-fc-driver.h where
it is defined.
Add linux/nvme-fc-driver.h (and scsi/fc/fc_fs.h as nvme-fc-driver.h
needs the definition of 'struct fc_ba_rjt' from scsi/fc/fc_fs.h) to the
header files included by qla_isr.c.
Fixes: 7401bc18d1 ("scsi: qla2xxx: Add FC-NVMe command handling")
Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Acked-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The value of "size" comes from the user. When we add "start + size" it
could lead to an integer overflow bug.
It means we vmalloc() a lot more memory than we had intended. I believe
that on 64 bit systems vmalloc() can succeed even if we ask it to
allocate huge 4GB buffers. So we would get memory corruption and likely
a crash when we call ha->isp_ops->write_optrom() and ->read_optrom().
Only root can trigger this bug.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=194061
Cc: <stable@vger.kernel.org>
Fixes: b7cc176c9e ("[SCSI] qla2xxx: Allow region-based flash-part accesses.")
Reported-by: shqking <shqking@gmail.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
aac_convert_sgraw2() kmalloc memory and return -1 on error, which should
be -ENOMEM. However, nobody is checking return value, so with this
change, -ENOMEM is propagated to upper layer.
Signed-off-by: Nikola Pajkovsky <npajkovsky@suse.cz>
Reviewed-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
unsigned long byte_count = 0;
nseg = scsi_dma_map(scsicmd);
if (nseg < 0)
return nseg;
if (nseg) {
...
}
return byte_count;
is equal to
unsigned long byte_count = 0;
nseg = scsi_dma_map(scsicmd);
if (nseg <= 0)
return nseg;
...
return byte_count;
No other code has changed.
[mkp: fix checkpatch complaints]
Signed-off-by: Nikola Pajkovsky <npajkovsky@suse.cz>
Reviewed-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
When storvsc is sending I/O to Hyper-v, it may allocate a bigger buffer
descriptor for large data payload that can't fit into a pre-allocated
buffer descriptor. This bigger buffer is freed on return path.
If I/O request to Hyper-v fails due to ring buffer busy, the storvsc
allocated buffer descriptor should also be freed.
[mkp: applied by hand]
Fixes: be0cf6ca30 ("scsi: storvsc: Set the tablesize based on the information given by the host")
Cc: <stable@vger.kernel.org>
Signed-off-by: Long Li <longli@microsoft.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Three minor fixes: a NULL deref in qedf, an off by one in sg and a fix
to IPR to prevent an error on initialisation.
Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2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=+Yu6
-----END PGP SIGNATURE-----
Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Three minor fixes: a NULL deref in qedf, an off by one in sg and a fix
to IPR to prevent an error on initialisation"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: qedf: Fix a potential NULL pointer dereference
scsi: sg: off by one in sg_ioctl()
scsi: ipr: Set no_report_opcodes for RAID arrays
Simplify the SMP passthrough code by switching it to the generic bsg-lib
helpers that abstract away the details of the request code, and gets
drivers out of seeing struct scsi_request.
For the libsas host SMP code there is a small behavior difference in
that we now always clear the residual len for successful commands,
similar to the three other SMP handler implementations. Given that
there is no partial command handling in the host SMP handler this should
not matter in practice.
[mkp: typos and checkpatch fixes]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The SAS transport class will do the right thing and not register the BSG
node if now smp_handler method is present.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The SAS transport class will do the right thing and not register the BSG
node if now smp_handler method is present.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Acked-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The SAS code will need it. Also mark the name argument const to match
bsg_register_queue.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Introduce struct scsi_vpd for the VPD page length, data and the RCU head
that will be used to free the VPD data. Use kfree_rcu() instead of
kfree() to free VPD data. Move the VPD buffer pointer check inside the
RCU read lock in the sysfs code. Only annotate pointers that are shared
across threads with __rcu. Use rcu_dereference() when dereferencing an
RCU pointer. This patch suppresses about twenty sparse complaints about
the vpd_pg8[03] pointers. This patch also fixes a race condition, namely
that updating of the VPD pointers and length variables in struct
scsi_device was not atomic with reference to the code reading these
variables. See also "Does the update code tolerate concurrent accesses?"
in Documentation/RCU/checklist.txt.
Fixes: commit 09e2b0b146 ("scsi: rescan VPD attributes")
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Acked-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Shane Seymour <shane.seymour@hpe.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Cc: Shane Seymour <shane.seymour@hpe.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Introduce the scsi_get_vpd_buf() and scsi_update_vpd_page()
functions. The only functional change in this patch is that if updating
page 0x80 fails that it is attempted to update page 0x83.
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Acked-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Shane Seymour <shane.seymour@hpe.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Cc: Shane M Seymour <shane.seymour@hpe.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This fixes a potential race condition observed on Power systems.
Several places throughout the aacraid driver call aac_fib_send or
similar to send a command to the aacraid adapter, then check the return
code to determine if the command was actually sent to the adapter, then
update the phase field in the scsi command scratch pad area to track
that the firmware now owns this command. However, there is nothing that
ensures that by the time the aac_fib_send function returns and we go to
write to the scsi command, that the command hasn't already completed and
the scsi command has been freed. This was causing random crashes in the
TCP stack which was tracked down to be caused by memory that had been a
struct request + scsi_cmnd being now used for an skbuff. Memory
poisoning was enabled in the kernel to debug this which showed that the
last owner of the memory that had been freed was aacraid and that it was
a struct request. The memory that was corrupted was the exact data
pattern of AAC_OWNER_FIRMWARE and it was at the same offset that aacraid
writes, which is scsicmd->SCp.phase. The patch below resolves this
issue.
Cc: <stable@vger.kernel.org>
Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Tested-by: Wen Xiong <wenxiong@linux.vnet.ibm.com>
Reviewed-by: Dave Carroll <david.carroll@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
A merge error crept in when formatting commit af167bc ("scsi: qlogicpti:
move bus reset to host reset")
Fixes: af167bc ("scsi: qlogicpti: move bus reset to host reset")
Signed-off-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The > here should be >= or we end up reading one element beyond the end
of the qedi->itt_map[] array. The qedi->itt_map[] array is allocated in
qedi_alloc_itt().
Fixes: ace7f46ba5 ("scsi: qedi: Add QLogic FastLinQ offload iSCSI driver framework.")
Cc: <stable@vger.kernel.org> # v4.10+
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Manish Rangankar <Manish.Rangankar@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This is an interesting regression with gcc-8, showing a harmless warning
for correct code:
In file included from include/linux/kernel.h:13:0,
...
from drivers/scsi/lpfc/lpfc_debugfs.c:23:
include/linux/printk.h:301:2: error: 'eq' may be used uninitialized in this function [-Werror=maybe-uninitialized]
printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
^~~~~~
In file included from drivers/scsi/lpfc/lpfc_debugfs.c:58:0:
drivers/scsi/lpfc/lpfc_debugfs.h:451:31: note: 'eq' was declared here
I managed to reduce the warning into a small test case for gcc-8 that I
reported in the gcc bugzilla[1].
As a workaround, this changes the logic to move the two assignments of
'eq' out of the conditions and instead make the index conditional. This
works for all configurations I tried and avoids adding a bogus
initialization.
Acked-by: James Smart <james.smart@broadcom.com>
Link: [1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81958
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The only reference to lpfc_nvmet_replenish_context() is inside of an
disabled:
drivers/scsi/lpfc/lpfc_nvmet.c:1457:1: error: 'lpfc_nvmet_replenish_context' defined but not used [-Werror=unused-function]
This replaces the preprocessor conditional with a C condition, so the
compiler can see that the function is intentionally unused.
Fixes: 9a38e4f1c82f ("scsi: lpfc: Fix MRQ > 1 context list handling")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The ioctl DK_CAPI_VLUN_RESIZE can fail if the allocated vlun size is
reduced from almost maximum capacity and then increased again.
The shrink_lxt() routine is currently using the SISL_ASTATUS_MASK to
mask the higher 48 bits of the lxt entry. This is unnecessary and
incorrect as it uses a mask designed for the asynchronous interrupt
status register. When the 4 port support was added to cxlflash, the
SISL_ASTATUS_MASK was updated to reflect the status bits for all 4
ports. This change indirectly affected the shrink_lxt() code path.
To extract the base, simply shift the bits without masking.
Fixes: 5651807232 ("scsi: cxlflash: SISlite updates to support 4 ports")
Signed-off-by: Uma Krishnan <ukrishn@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The AFU recovery routine uses an interruptible mutex to control the flow
of in-flight recoveries. Upon receiving an interruptible signal the code
branches to a common exit path which wrongly assumes the mutex is
held. Add a local variable to track when the mutex should be unlocked.
Signed-off-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
Signed-off-by: Uma Krishnan <ukrishn@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The AFU termination sequence has been refactored over time such that the
main tear down routine, term_afu(), can no longer can be invoked with a
NULL AFU pointer. Remove the unnecessary existence check from
term_afu().
Signed-off-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
Signed-off-by: Uma Krishnan <ukrishn@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
vio_device_id are not supposed to change at runtime. All functions
working with vio_device_id provided by <asm/vio.h> work with const
vio_device_id. So mark the non-const structs as const.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The kerneldoc comment for scsi_initialize_rq() neglected to document the
"rq" parameter, leading to this docs build warning:
./drivers/scsi/scsi_lib.c:1116: warning: No description found for parameter 'rq'
Document the parameter and make the build slightly quieter.
[mkp: used wording suggested by Bart]
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Currently we free the resources backing the enclosure device before we
call device_unregister(). This is racy: during rmmod of low-level SCSI
drivers that hook into enclosure, we end up with a small window of time
during which writing to /sys can OOPS. Example trace with mpt3sas:
general protection fault: 0000 [#1] SMP KASAN
Modules linked in: mpt3sas(-) <...>
RIP: [<ffffffffa0388a98>] ses_get_page2_descriptor.isra.6+0x38/0x220 [ses]
Call Trace:
[<ffffffffa0389d14>] ses_set_fault+0xf4/0x400 [ses]
[<ffffffffa0361069>] set_component_fault+0xa9/0xf0 [enclosure]
[<ffffffff8205bffc>] dev_attr_store+0x3c/0x70
[<ffffffff81677df5>] sysfs_kf_write+0x115/0x180
[<ffffffff81675725>] kernfs_fop_write+0x275/0x3a0
[<ffffffff8151f810>] __vfs_write+0xe0/0x3e0
[<ffffffff8152281f>] vfs_write+0x13f/0x4a0
[<ffffffff81526731>] SyS_write+0x111/0x230
[<ffffffff828b401b>] entry_SYSCALL_64_fastpath+0x13/0x94
Fortunately the solution is extremely simple: call device_unregister()
before we free the resources, and the race no longer exists. The driver
core holds a reference over ->remove_dev(), so AFAICT this is safe.
Signed-off-by: Calvin Owens <calvinowens@fb.com>
Acked-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Make these const as they are only stored in the type field of a device
structure, which is const.
Done using Coccinelle.
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
gd->minors has been set when call alloc_disk() in sd_probe.
Signed-off-by: weiping zhang <zhangweiping@didichuxing.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Just displaying some different information; drop it.
Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
megaraid_mbox only has one reset function, and that is a host reset. So
drop the duplicate bus reset and device reset functions.
Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Never used anywhere.
Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
bus reset always returns SUCCESS, meaning host reset was never
tested. At the same time the only difference to the HBA is a missing
call to NCR_700_chip_reset(). So add the missing call to bus reset,
drop host reset, and move bus reset to host reset.
Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The driver has both a bus and a host reset, where the host reset does a
bus reset followed by an attempt to reset the chip registers to a
default state. However, as the bus reset always returned SUCCESS the
host reset was never called, so the functionality of the register reset
function was never validated. Additionally, tha AIC-6260 chip has a
hard reset line, which actually should be preferred for a host
reset. But I haven't found a way how this can be triggered via software,
so take the safe approach and drop the host reset.
[mkp: typo]
Signed-off-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
bus reset is a host reset without nsp32hw_init(), and will always return
SUCCESS, thus disabling the use of host reset. So drop bus reset in
favour of host reset.
Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
qedf has a host reset handler, but as the bus reset handler is a stub
always returning SUCCESS the host reset is never invoked. So drop the
bus reset handler.
Signed-off-by: Hannes Reinecke <hare@suse.com>
Tested-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
bus_reset and host_reset are the same functions, so drop bus_reset.
Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
host_reset and bus_reset is the same function, so drop bus reset.
Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The bus reset handler is really a host reset.
Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The bus reset handler really is a host reset, so move it to
eh_bus_reset_handler.
Signed-off-by: Hannes Reinecke <hare@suse.com>
Acked-by: Finn Thain <fthain@telegraphics.com.au>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The bus reset function is really a host reset, so move it to
eh_host_reset_handler.
Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The bus reset function really is a host reset, so move it to
eh_host_reset_handler().
Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The bus reset function is just a wrapper calling host reset under the
host lock. So move taking of the host lock into the host reset function
and drop bus reset.
Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The bus reset function really is a host reset, so move it to
eh_host_reset_handler().
Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The Highpoint driver only has one reset function, and that is a host
reset. So stop pretending we're doing anything else.
Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The bus reset handler is just calling target reset on all targets, which
is exactly what SCSI EH will be doing anyway. So move the bus reset
function to target reset and drop the loop.
Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The bus reset handler is calling I_T Nexus reset, which logically is a
target reset as it need to specify both the initiator and the target.
So move it to target reset.
Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Command abort already returns FAILED, which will then be escalated to a
host reset. So no need to call host_reset directly.
Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
When calling host reset we're resetting all ports anyway, so there is no
point in waiting for the ports to become unblocked.
Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
When we're resetting the host any remote port states will be reset
anyway, so it's pointless to wait for dev_loss_tmo during host reset.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The function returns '0' if successful; with the original comment
the function doesn't have a way to indicate success ...
Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Bart van Assche <bvanassche@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This patch avoids that gcc reports the following warning when
building with W=1:
drivers/scsi/iscsi_tcp.c:166:24: warning: variable ?session? set but not used [-Wunused-but-set-variable]
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Cc: Lee Duncan <lduncan@suse.com>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This patch avoids that gcc reports the following warning when
building with W=1:
drivers/scsi/scsi_debug.c:2264:15: warning: variable ?pcontrol? set but not used [-Wunused-but-set-variable]
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Cc: Douglas Gilbert <dgilbert@interlog.com>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Avoid that the following compiler warning is reported when building
with W=1:
drivers/scsi/scsi_transport_srp.c:92:19: warning: comparison is always false due to limited range of data type [-Wtype-limits]
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.de>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Check whether memory allocation succeeded before dereferencing
the pointer to the allocated memory.
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This was detected by building with W=1.
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This patch avoids that smatch reports the following:
drivers/scsi/libiscsi.c:1081: iscsi_handle_reject() warn: inconsistent indenting
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Avoid that sparse reports the following:
drivers/scsi/sg.c:1114:41: warning: incorrect type in argument 5 (different address spaces)
drivers/scsi/sg.c:1114:41: expected char [noderef] <asn:1>*arg
drivers/scsi/sg.c:1114:41: got char *<noident>
This patch does not change any functionality.
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This patch avoids that gcc reports the following warning when
building with W=1:
drivers/scsi/sd.c:315:10: warning: comparison of unsigned expression >= 0 is always true [-Wtype-limits]
if (val >= 0 && val <= T10_PI_TYPE3_PROTECTION)
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This patch avoids that smatch reports the following:
drivers/scsi/sd.c:3540: sd_suspend_common() warn: inconsistent indenting
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Before scsi_prep_fn() calls the ULP .init_command() callback
function it stores the SCSI command pointer in request.special.
This means that the SCpnt = rq->special assignments in the sd
and sr drivers assign a pointer to itself. Hence convert these
two assignment statements into warning statements.
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Since commit e9c787e65c ("scsi: allocate scsi_cmnd structures as
part of struct request") struct request and struct scsi_cmnd are
adjacent. This means that there is now an alternative to reading
req->special to convert a pointer to a prepared request into a
SCSI command pointer, namely by using blk_mq_rq_to_pdu(). Make
this change where appropriate. Although this patch does not
change any functionality, it slightly improves performance and
slightly improves readability.
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Rename several functions to make it easy to see which queue type a
function is intended for.
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This patch avoids that smatch reports the following warning:
drivers/scsi/scsi_sysfs.c:117: check_set() error: strncmp() '"-"' too small (2 vs 20)
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The conclusion of a recent discussion about the new warnings
reported by gcc 7 is that the new warnings reported when building
with W=1 should be suppressed. However, gcc 7 still warns about
fall-through in switch statements when building with W=1. Suppress
these warnings by annotating the SCSI core properly.
See also Linus Torvalds, Lots of new warnings with gcc-7.1.1, 11
July 2017 (https://www.mail-archive.com/linux-media@vger.kernel.org/msg115428.html).
References: commit bd664f6b3e ("disable new gcc-7.1.1 warnings for now")
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Update driver version to 11.4.0.3
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
cc1: warnings being treated as errors
drivers/scsi/lpfc/lpfc_init.c: In function 'lpfc_get_wwpn':
drivers/scsi/lpfc/lpfc_init.c:3253: error: integer constant is too large for 'long' type
Signed-off-by: Maurizio Lombardi <mlombard@redhat.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Add Buffer to buffer credit recovery support to the driver. This is a
negotiated feature with the peer that allows for both sides to detect
dropped RRDY's and FC Frames and recover credit.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Change hw queue binding messages to info - not error.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Jitendra Bhivare