Pull scheduler updates from Ingo Molnar:
"The main changes in this cycle were:
- Optimized support for Intel "Cluster-on-Die" (CoD) topologies (Dave
Hansen)
- Various sched/idle refinements for better idle handling (Nicolas
Pitre, Daniel Lezcano, Chuansheng Liu, Vincent Guittot)
- sched/numa updates and optimizations (Rik van Riel)
- sysbench speedup (Vincent Guittot)
- capacity calculation cleanups/refactoring (Vincent Guittot)
- Various cleanups to thread group iteration (Oleg Nesterov)
- Double-rq-lock removal optimization and various refactorings
(Kirill Tkhai)
- various sched/deadline fixes
... and lots of other changes"
* 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (72 commits)
sched/dl: Use dl_bw_of() under rcu_read_lock_sched()
sched/fair: Delete resched_cpu() from idle_balance()
sched, time: Fix build error with 64 bit cputime_t on 32 bit systems
sched: Improve sysbench performance by fixing spurious active migration
sched/x86: Fix up typo in topology detection
x86, sched: Add new topology for multi-NUMA-node CPUs
sched/rt: Use resched_curr() in task_tick_rt()
sched: Use rq->rd in sched_setaffinity() under RCU read lock
sched: cleanup: Rename 'out_unlock' to 'out_free_new_mask'
sched: Use dl_bw_of() under RCU read lock
sched/fair: Remove duplicate code from can_migrate_task()
sched, mips, ia64: Remove __ARCH_WANT_UNLOCKED_CTXSW
sched: print_rq(): Don't use tasklist_lock
sched: normalize_rt_tasks(): Don't use _irqsave for tasklist_lock, use task_rq_lock()
sched: Fix the task-group check in tg_has_rt_tasks()
sched/fair: Leverage the idle state info when choosing the "idlest" cpu
sched: Let the scheduler see CPU idle states
sched/deadline: Fix inter- exclusive cpusets migrations
sched/deadline: Clear dl_entity params when setscheduling to different class
sched/numa: Kill the wrong/dead TASK_DEAD check in task_numa_fault()
...
Through the qla target code, the qlt_send_term_exchange() routine
is used in various different places to cleanup an exchange. For the
case of IOCB request queue is full, the exchange is left unhandled/
dangling. Existing code does not have re-try logic to cleanup the
exchange. This patch add retry logic to cleanup the exchange before
letting new commands through.
For the case of FW running out of exchanges, driver need to reply
SAM_STAT_BUSY to the initiators. This patch add a pending queue
for the busy reply in case IOCB queue is unable to handle the cmd.
Cc: <stable@vger.kernel.org>
Signed-off-by: Quinn Tran <quinn.tran@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Disable the PCI device during shutdown to prevent any races with
other PCI code such as the AER handling code.
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Parse the retry delay timer field from the FCP response data and if:
- It is not zero
- The SCSI status is busy or queue full
return SCSI_MLQUEUE_TARGET_BUSY for the number of milliseconds specified
in the retry delay timer field.
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Nameserver data on FC switch is not refreshed when
qla2xxx driver is unloaded. Disabling laser for
ISP2031 will force FC switch to rescan ports and
clear fdmi entries from Nameserver.
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Add support for the FDMI-2 fabric switch feature.
Since FDMI-2 uses code from FDMI-1, some of the existing code
needed to be repaired to prevent fields from being overflowed.
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
The PCI register read checking introduced in commit fe1b806f4f
("qla2xxx: Disable adapter when we encounter a PCI disconnect") is
active during driver probe. Hold off scheduling any board removal until
the driver probe has completed. This ensures that the the board_disable
work structure is initialized and more importantly, avoids racing
qla2x00_probe_one.
Signed-off-by: Joe Lawrence <joe.lawrence@stratus.com>
Acked-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Introduce mutual exclusion between the qla2xxx_remove_one PCI driver
callback and qla2x00_disable_board_on_pci_error, which is scheduled as
board_disable work by qla2x00_check_reg{32,16}_for_disconnect:
* Leave the driver-specific data attached to the underlying PCI device
intact in qla2x00_disable_board_on_pci_error, so that qla2x00_remove_one
has enough breadcrumbs to determine that any board_disable work has been
completed.
* In qla2xxx_remove_one, set a bit to prevent any subsequent
board_disable work from scheduling, then cancel and wait until pending
work has completed.
* Reuse the PCI device enable count check in qla2x00_remove_one to
determine if board_disable has occured. The original purpose of this
check was unnecessary since the driver remove function wasn't called
when the probe fails.
Signed-off-by: Joe Lawrence <joe.lawrence@stratus.com>
Acked-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Add an uint16_t variant of qla2x00_check_reg_for_disconnect and use
these routines to check and schedule a PCI-disconnected board from a
centralized place.
Signed-off-by: Joe Lawrence <joe.lawrence@stratus.com>
Acked-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Take advantage of commit fe1b806f4f ("qla2xxx: Refactor shutdown code
so some functionality can be reused") to remove an inlined copy of
qla2x00_clear_drv_active in the driver's probe hardware error path.
Signed-off-by: Joe Lawrence <joe.lawrence@stratus.com>
Acked-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Once calling scsi_host_put, be careful to not access qla_hw_data through
the Scsi_Host private data (ie, scsi_qla_host base_vha).
Fixes: fe1b806f4f ("qla2xxx: Refactor shutdown code so some functionality can be reused")
Cc: stable@vger.kernel.org # 3.14, 3.15, 3.16
Signed-off-by: Joe Lawrence <joe.lawrence@stratus.com>
Acked-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Now that we're using 64-bit LUNs internally we need to increase
the size of max_luns to 64 bits, too.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Christoph Hellwig <hch@infradead.org>
Reviewed-by: Ewan Milne <emilne@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
The SCSI standard defines 64-bit values for LUNs, and large arrays
employing large or hierarchical LUN numbers become more and more
common.
So update the linux SCSI stack to use 64-bit LUN numbers.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Christoph Hellwig <hch@infradead.org>
Reviewed-by: Ewan Milne <emilne@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Older HBAs are only capable of supporting 16-bit LUNs,
so we need to make sure to adjust max_lun accordingly.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Acked-by: Chad Dupuis <chad.dupuis@qlogic.com>
Reviewed-by: Ewan Milne <emilne@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This patch consists of the usual driver updates (qla2xxx, qla4xxx, lpfc,
be2iscsi, fnic, ufs, NCR5380) The NCR5380 is the addition to maintained status
of a long neglected driver for older hardware. In addition there are a lot of
minor fixes and cleanups and some more updates to make scsi mq ready.
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Merge tag 'scsi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI updates from James Bottomley:
"This patch consists of the usual driver updates (qla2xxx, qla4xxx,
lpfc, be2iscsi, fnic, ufs, NCR5380) The NCR5380 is the addition to
maintained status of a long neglected driver for older hardware. In
addition there are a lot of minor fixes and cleanups and some more
updates to make scsi mq ready"
* tag 'scsi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (130 commits)
include/scsi/osd_protocol.h: remove unnecessary __constant
mvsas: Recognise device/subsystem 9485/9485 as 88SE9485
Revert "be2iscsi: Fix processing cqe for cxn whose endpoint is freed"
mptfusion: fix msgContext in mptctl_hp_hostinfo
acornscsi: remove linked command support
scsi/NCR5380: dprintk macro
fusion: Remove use of DEF_SCSI_QCMD
fusion: Add free msg frames to the head, not tail of list
mpt2sas: Add free smids to the head, not tail of list
mpt2sas: Remove use of DEF_SCSI_QCMD
mpt2sas: Remove uses of serial_number
mpt3sas: Remove use of DEF_SCSI_QCMD
mpt3sas: Remove uses of serial_number
qla2xxx: Use kmemdup instead of kmalloc + memcpy
qla4xxx: Use kmemdup instead of kmalloc + memcpy
qla2xxx: fix incorrect debug printk
be2iscsi: Bump the driver version
be2iscsi: Fix processing cqe for cxn whose endpoint is freed
be2iscsi: Fix destroy MCC-CQ before MCC-EQ is destroyed
be2iscsi: Fix memory corruption in MBX path
...
There are missing curly braces here so it prints that the recovery
failed even when it succeeded.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Acked-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This can block progress of the SCSI error handler thread and cause long I/O
outages. Instead just fail immediately if another reset is going on or we are
accessing flash memory.
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Add support for T10-Dif for Target Mode to qla driver.
The driver will look for firmware attribute that support
this feature. When the feature is present, the capabilities
will be report to TCM layer.
Add CTIO CRC2 iocb to build T10-Dif commands.
Add support routines to process good & error cases.
Signed-off-by: Quinn Tran <quinn.tran@qlogic.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
If the firmware cannot find the command specified then return SUCCESS to the
error handler so as not to needlessly escalate. Also cleanup the resources for
the command since we cannot expect the original command to returned in
interrupt context.
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Fix module parameter descriptions mentioning default values that no longer
match the code.
Signed-off-by: Steven J. Magnani <steve@digidescorp.com>
Acked-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
qla2x00_mem_alloc() returns 1 on success and -ENOMEM on failure. On the
one hand the caller assumes non-zero is success but on the other hand
the caller also assumes that it returns an error code.
I've fixed it to return zero on success and a negative error code on
failure. This matches the documentation as well.
[jejb: checkpatch fix]
Fixes: e315cd28b9 ('[SCSI] qla2xxx: Code changes for qla data structure refactoring')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Send aborts to the firmware via the request/response queue mechanism.
Signed-off-by: Armen Baloyan <armen.baloyan@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Allow for the capture of a firmware dump but have a sysfs node
(allow_cna_fw_dump) to allow the feature to be enabled/disabled dynamically.
The default is off.
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Tell the mid-layer that number of commands we can queue is the available
resources we have minus a small amount for internal commands.
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
If we become disconnected from the PCI bus/PCIe fabric, there can be long delays
in register reads which can cause erroneous decisions to be made and cause a
soft lockup if a lock is held too long. As a preventative measure, check for a
disconnection (register reads that return -1) and then disable the board if we
find ourselves in this condition. For now, check in our interrupt handlers and
the per adapter one second timer.
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
