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The driver creates its own per-CPU threads which are updated based on
CPU hotplug events. It is also possible to use kworkers and remove some
of the kthread infrastrucure.
The code checked ->thread to decide if there is an active per-CPU
thread. By using the kworker infrastructure this is no longer
possible (or required). The thread pointer is saved in `kthread' instead
of `thread' so anything trying to use thread is caught by the
compiler. Currently only the bnx2fc driver is using struct fcoe_percpu_s
and the kthread member.
After a CPU went offline, we may still enqueue items on the "offline"
CPU. This isn't much of a problem. The work will be done on a random
CPU. The allocated crc_eof_page page won't be cleaned up. It is probably
expected that the CPU comes up at some point so it should not be a
problem. The crc_eof_page memory is released of course once the module
is removed.
This patch was only compile-tested due to -ENODEV.
Cc: Vasu Dev <vasu.dev@intel.com>
Cc: "James E.J. Bottomley" <jejb@linux.vnet.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: fcoe-devel@open-fcoe.org
Cc: linux-scsi@vger.kernel.org
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Tested-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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If there is a dma mapping error snic kfree()s buf right before printing
it. Change the order to not accidently trip on memory that's not owned
by us anymore.
Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Acked-by: Narsimhulu Musini <nmusini@cisco.com>
Reviewed-by: Laurence Oberman <loberman@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Enabling format checking in dprintk() shows that wd7000_biosparam uses
an incorrect format string for sector_t:
drivers/scsi/wd7000.c: In function 'wd7000_biosparam':
drivers/scsi/wd7000.c:1594:21: error: format '%d' expects argument of type 'int', but argument 3 has type 'sector_t {aka long long unsigned int}' [-Werror=format=]
As sector_t can be 32-bit wide, this adds a cast to 'u64' and prints
that with the correct format. The change to use no_printk() generally
helps with finding this kind of hidden format string bug, and I found
that when building with "-Wextra", which warned about an empty else
clause in
} else
dprintk("ok!\n");
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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The fc_get_host_stats() function contains a complex conversion from
jiffies to timespec to seconds. As we try to get rid of uses of struct
timespec, we can clean this up and replace it with a simpler
computation.
Simply dividing the difference in jiffies by HZ is not only much more
efficient, it also avoids a problem that causes the
seconds_since_last_reset value to be incorrect if jiffies has overrun
since the 'boot_time' value was recorded.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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When enabling the debug options NCR_700_DEBUG and NCR_700_TAG_DEBUG
various printk format warnings can be seen like:
drivers/scsi/53c700.c:357:2: warning: format %p expects argument of type void * , but argument 4 has type dma_addr_t [-Wformat=]
script_patch_32(hostdata->dev, script, MessageLocation,
Fix them by using the right printk format specifiers.
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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[mkp: Updated MAINTAINERS]
Signed-off-by: Jim Gill <jgill@vmware.com>
Acked-by: Arvind Kumar <arvindkumar@vmware.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Some CXL Flash cards need notification of device shutdown in order to
flush pending I/Os.
A PCI notification hook for shutdown has been added where the driver
notifies the card and returns. When the device is removed in the PCI
remove path, notification code will wait for shutdown processing to
complete.
Signed-off-by: Uma Krishnan <ukrishn@linux.vnet.ibm.com>
Acked-by: Manoj N. Kumar <manoj@linux.vnet.ibm.com>
Acked-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Device dependent flags are needed to support functions that are specific
to a particular device.
One such case is - some CXL Flash cards need to be notified of device
shutdown. For other CXL devices, this feature does not prove to be
useful yet. Such distinct features need to be identified in the driver
to bypass or invoke specific functionality.
In this patch, a member 'flags' has been added to device dependent
values. These flags will be used and expanded in the future to support
various device specific functions.
Signed-off-by: Uma Krishnan <ukrishn@linux.vnet.ibm.com>
Acked-by: Manoj N. Kumar <manoj@linux.vnet.ibm.com>
Acked-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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While running 'sg_reset -H' in a loop with a user-space application active,
hit the following exception:
cpu 0x2: Vector: 300 (Data Access)
pc: : afu_attach+0x50/0x240 [cxlflash]
lr: : cxlflash_afu_recover+0x3dc/0x7d0 [cxlflash]
pid = 20365, comm = run_block_fvt
Linux version 4.5.0-491-26f710d+
cxlflash_afu_recover+0x3dc/0x7d0 [cxlflash]
cxlflash_ioctl+0x5a8/0x6f0 [cxlflash]
scsi_ioctl+0x3b0/0x4c0
sd_ioctl+0x110/0x190
blkdev_ioctl+0x28c/0xc20
block_ioctl+0xa4/0xd0
do_vfs_ioctl+0xd8/0x8c0
SyS_ioctl+0xd4/0xf0
system_call+0x38/0xb4
The problem here is that the problem space area is unmapped while the
application issues the DK_CXLFLASH_RECOVER_AFU ioctl.
This is the order I observe:
proc1 proc2
1) sg_reset
2) ioctl(DK_CXLFLASH_RECOVER_AFU)
3) sg_reset again
causing a PSA unmap
4) continues RECOVER_AFU processing
The resolution to this problem is to have the reset handler drain all
outstanding user space initiated ioctls before proceeding. It is safe
to drain after the state has been changed to STATE_RESET. Also since
drain_ioctls() was static, it had to be moved up a bit to be before
cxlflash_eh_host_reset_handler().
Signed-off-by: Manoj N. Kumar <manoj@linux.vnet.ibm.com>
Acked-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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In this post: http://www.spinics.net/lists/linux-scsi/msg97124.html the
author shows some kernel infrastructure complaining about a sleep in an
invalid context. Remove offending call to vmalloc(). Instead of using
kzalloc() which reviewers didn't like, use a bucket system (64 bytes on
the stack) and potentially multiple calls to sg_pcopy_from_buffer() to
construct the 'data-in' buffer for the SCSI REPORT LUNS command.
Signed-off-by: Douglas Gilbert <dgilbert@interlog.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Originally libfc would just be initializing the refcount to '1', and
using the disc_mutex to synchronize if and when the final put should be
happening. This has a race condition as the mutex might be delayed,
causing other threads to access an invalid structure. This patch
updates the rport reference counting to increase the reference every
time 'rport_lookup' is called, and decreases the reference
correspondingly. This removes the need to hold 'disc_mutex' when
removing the structure, and avoids the above race condition.
Signed-off-by: Hannes Reinecke <hare@suse.com>
Acked-by: Vasu Dev <vasu.dev@intel.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Fix build when CONFIG_ISA_DMA_API is not enabled. Fixes these build
errors (on x86_64):
../drivers/scsi/ultrastor.c: In function 'ultrastor_14f_detect':
../drivers/scsi/ultrastor.c:519:5: error: implicit declaration of function 'request_dma' [-Werror=implicit-function-declaration]
if (config.dma_channel && request_dma(config.dma_channel,"Ultrastor")) {
^
../drivers/scsi/ultrastor.c: In function 'ultrastor_release':
../drivers/scsi/ultrastor.c:658:3: error: implicit declaration of function 'free_dma' [-Werror=implicit-function-declaration]
free_dma(shost->dma_channel);
^
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Trivial fix to spelling mistake in printk message.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Laurence Oberman <loberman@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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It is not necessary to surround call to
notify_port_event(, PORTE_BROADCAST_RCVD) by spin_lock_irqsave(),
so remove.
This was causing a warn, as below:
=================================
[ INFO: inconsistent lock state ]
4.4.8+ #12 Not tainted
---------------------------------
inconsistent {IN-HARDIRQ-W} -> {HARDIRQ-ON-W} usage.
kworker/u64:1/168 [HC0[0]:SC0[0]:HE1:SE1] takes:
(&(&hisi_hba->lock)->rlock){?.....}, at: [<ffffffc00052c708>] alloc_dev_quirk_v2_hw+0x48/0xec
{IN-HARDIRQ-W} state was registered at:
[<ffffffc0000fc764>] mark_lock+0x19c/0x6a0
[<ffffffc0000fdc14>] __lock_acquire+0xa2c/0x1d00
[<ffffffc0000ff654>] lock_acquire+0x58/0x7c
[<ffffffc0008b609c>] _raw_spin_lock_irqsave+0x54/0x6c
[<ffffffc00052d3c0>] int_chnl_int_v2_hw+0x1c4/0x248
[<ffffffc0001098e8>] handle_irq_event_percpu+0x9c/0x144
[<ffffffc0001099d4>] handle_irq_event+0x44/0x74
[<ffffffc00010cd68>] handle_fasteoi_irq+0xb4/0x188
[<ffffffc000108ea8>] generic_handle_irq+0x24/0x38
[<ffffffc0001091fc>] __handle_domain_irq+0x60/0xac
[<ffffffc00008261c>] gic_handle_irq+0xcc/0x168
[<ffffffc0000855ac>] el1_irq+0x6c/0xe0
[<ffffffc0000f7414>] default_idle_call+0x1c/0x34
[<ffffffc0000f7654>] cpu_startup_entry+0x1d4/0x228
[<ffffffc0008aecd8>] rest_init+0x150/0x160
[<ffffffc000c4b95c>] start_kernel+0x3a4/0x3b8
[<00000000008bb000>] 0x8bb000
irq event stamp: 32661
hardirqs last enabled at (32661): [<ffffffc0008b41a8>] __mutex_unlock_slowpath+0x108/0x18c
hardirqs last disabled at (32660): [<ffffffc0008b40e4>] __mutex_unlock_slowpath+0x44/0x18c
softirqs last enabled at (25114): [<ffffffc0000bde68>] __do_softirq+0x210/0x27c
softirqs last disabled at (25095): [<ffffffc0000be224>] irq_exit+0x9c/0xe8
other info that might help us debug this:
Possible unsafe locking scenario:
CPU0
----
lock(&(&hisi_hba->lock)->rlock);
<Interrupt>
lock(&(&hisi_hba->lock)->rlock);
*** DEADLOCK ***
2 locks held by kworker/u64:1/168:
#0: ("%s"shost->work_q_name){++++.+}, at: [<ffffffc0000d2980>] process_one_work+0x134/0x3cc
#1: ((&sw->work)#2){+.+.+.}, at: [<ffffffc0000d2980>] process_one_work+0x134/0x3cc
stack backtrace:
CPU: 4 PID: 168 Comm: kworker/u64:1 Not tainted 4.4.8+ #12
Hardware name: Huawei Technologies Co., Ltd. D03/D03, BIOS 1.12 01/01/1900
Workqueue: scsi_wq_1 sas_discover_domain
Call trace:
[<ffffffc000089988>] dump_backtrace+0x0/0x114
[<ffffffc000089ab0>] show_stack+0x14/0x1c
[<ffffffc00035ac50>] dump_stack+0xb4/0xf0
[<ffffffc0000fc524>] print_usage_bug+0x210/0x2b4
[<ffffffc0000fcbc4>] mark_lock+0x5fc/0x6a0
[<ffffffc0000fd9e8>] __lock_acquire+0x800/0x1d00
[<ffffffc0000ff654>] lock_acquire+0x58/0x7c
[<ffffffc0008b5edc>] _raw_spin_lock+0x44/0x58
[<ffffffc00052c708>] alloc_dev_quirk_v2_hw+0x48/0xec
[<ffffffc000528214>] hisi_sas_dev_found+0x48/0x1b8
[<ffffffc00051a9b8>] sas_notify_lldd_dev_found+0x34/0xe0
[<ffffffc00051e5e8>] sas_discover_root_expander+0x58/0x128
[<ffffffc00051b38c>] sas_discover_domain+0x4bc/0x564
[<ffffffc0000d29ec>] process_one_work+0x1a0/0x3cc
[<ffffffc0000d2d50>] worker_thread+0x138/0x438
[<ffffffc0000d9494>] kthread+0xdc/0xf0
[<ffffffc000085c50>] ret_from_fork+0x10/0x40
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Reviewed-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Add support in v2 hw driver for ACPI.
A check on whether an ACPI handle is available for the device is used to
decide on whether to use ACPI reset handler or syscon for hw reset.
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
Reviewed-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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When a virtual scsi DVD device is present with no image file
attached the storvsc driver logs all resulting unnecessary sense errors
whenever IO is issued to the device.
[storvsc] Sense Key : Not Ready [current]
[storvsc] Add. Sense: Medium not present - tray closed
[mkp: Fixed whitespace]
Signed-off-by: Cathy Avery <cavery@redhat.com>
Reviewed-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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The "fcp_rsp_code = %d" message isn't an error, it's meant to be
informative only. This patch prevents a flood of such messages in some
situations.
Signed-off-by: Maurizio Lombardi <mlombard@redhat.com>
Tested-by: Laurence Oberman <loberman@redhat.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Acked-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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If _scsih_sas_host_add's call to mpt3sas_config_get_sas_iounit_pg0
fails, ioc->sas_hba.parent_dev may be left uninitialized. A later
device probe could invoke mpt3sas_transport_port_add which will call
sas_port_alloc_num [scsi_transport_sas] with a NULL parent_dev pointer.
Signed-off-by: Joe Lawrence <joe.lawrence@stratus.com>
Acked-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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In _scsih_sas_host_add, the number of HBA phys are determined and then
later used to allocate an array of struct _sas_phy's. If the routine
sets ioc->sas_hba.num_phys, but then fails to allocate the
ioc->sas_hba.phy array (by kcalloc error or other intermediate
error/exit path), ioc->sas_hba is left in a dangerous state: all readers
of ioc->sas_hba.phy[] do so by indexing it from 0..ioc->sas_hba.num_phys
without checking that the space was ever allocated.
Modify _scsih_sas_host_add to set ioc->sas_hba.num_phys only after
successfully allocating ioc->sas_hba.phy[].
Signed-off-by: Joe Lawrence <joe.lawrence@stratus.com>
Acked-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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This patch adds license info to the tc-dwc-g210 and ufshcd-dwc files in
order for them to have access to some ufshcd symbols when all are built
as modules.
Signed-off-by: Joao Pinto <jpinto@synopsys.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Use kmemdup when some other buffer is immediately copied into allocated
region. It replaces call to allocation followed by memcpy, by a single
call to kmemdup.
Signed-off-by: Muhammad Falak R Wani <falakreyaz@gmail.com>
Reviewed-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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firmare -> firmware
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Acked-by: Jack Wang <jinpu.wang@profitbricks.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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firmare -> firmware
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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This patch adds a glue pci driver for the Synopsys G210 Test Chip.
[mkp: Fixed Kconfig depends and module name]
Signed-off-by: Joao Pinto <jpinto@synopsys.com>
Reviewed-by: Hannes Reinicke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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This patch adds a glue platform driver for the Synopsys G210 Test Chip.
Signed-off-by: Joao Pinto <jpinto@synopsys.com>
Reviewed-by: Hannes Reinicke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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This patch adds support for Synopsys G210 Test Chip.
Signed-off-by: Joao Pinto <jpinto@synopsys.com>
Reviewed-by: Hannes Reinicke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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This patch has the goal to add support for DesignWare UFS Controller
specific operations.
Signed-off-by: Joao Pinto <jpinto@synopsys.com>
Reviewed-by: Hannes Reinicke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Add link status to ufshci.
Signed-off-by: Joao Pinto <jpinto@synopsys.com>
Acked-by: Tomas Winkler <tomas.winkler@intel.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Add unipro attributes.
Signed-off-by: Joao Pinto <jpinto@synopsys.com>
Acked-by: Tomas Winkler <tomas.winkler@intel.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Add UFS 2.0 support to the UFS core driver.
Signed-off-by: Joao Pinto <jpinto@synopsys.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Tomas Winkler <tomas.winkler@intel.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Fixed typo in ufshcd-pltfrm.
Signed-off-by: Joao Pinto <jpinto@synopsys.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Tomas Winkler <tomas.winkler@intel.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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In qla24xx_process_response_queue() rsp->msix->cpuid may trigger NULL
pointer dereference when rsp->msix is NULL:
[ 5.622457] NULL pointer dereference at 0000000000000050
[ 5.622457] IP: [<ffffffff8155e614>] qla24xx_process_response_queue+0x44/0x4b0
[ 5.622457] PGD 0
[ 5.622457] Oops: 0000 [#1] SMP
[ 5.622457] Modules linked in:
[ 5.622457] CPU: 2 PID: 0 Comm: swapper/2 Not tainted 4.6.3-x86_64 #1
[ 5.622457] Hardware name: HP ProLiant DL360 G5, BIOS P58 05/02/2011
[ 5.622457] task: ffff8801a88f3740 ti: ffff8801a8954000 task.ti: ffff8801a8954000
[ 5.622457] RIP: 0010:[<ffffffff8155e614>] [<ffffffff8155e614>] qla24xx_process_response_queue+0x44/0x4b0
[ 5.622457] RSP: 0000:ffff8801afb03de8 EFLAGS: 00010002
[ 5.622457] RAX: 0000000000000000 RBX: 0000000000000032 RCX: 00000000ffffffff
[ 5.622457] RDX: 0000000000000002 RSI: ffff8801a79bf8c8 RDI: ffff8800c8f7e7c0
[ 5.622457] RBP: ffff8801afb03e68 R08: 0000000000000000 R09: 0000000000000000
[ 5.622457] R10: 00000000ffff8c47 R11: 0000000000000002 R12: ffff8801a79bf8c8
[ 5.622457] R13: ffff8800c8f7e7c0 R14: ffff8800c8f60000 R15: 0000000000018013
[ 5.622457] FS: 0000000000000000(0000) GS:ffff8801afb00000(0000) knlGS:0000000000000000
[ 5.622457] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5.622457] CR2: 0000000000000050 CR3: 0000000001e07000 CR4: 00000000000006e0
[ 5.622457] Stack:
[ 5.622457] ffff8801afb03e30 ffffffff810c0f2d 0000000000000086 0000000000000002
[ 5.622457] ffff8801afb03e28 ffffffff816570e1 ffff8800c8994628 0000000000000002
[ 5.622457] ffff8801afb03e60 ffffffff816772d4 b47c472ad6955e68 0000000000000032
[ 5.622457] Call Trace:
[ 5.622457] <IRQ>
[ 5.622457] [<ffffffff810c0f2d>] ? __wake_up_common+0x4d/0x80
[ 5.622457] [<ffffffff816570e1>] ? usb_hcd_resume_root_hub+0x51/0x60
[ 5.622457] [<ffffffff816772d4>] ? uhci_hub_status_data+0x64/0x240
[ 5.622457] [<ffffffff81560d00>] qla24xx_intr_handler+0xf0/0x2e0
[ 5.622457] [<ffffffff810d569e>] ? get_next_timer_interrupt+0xce/0x200
[ 5.622457] [<ffffffff810c89b4>] handle_irq_event_percpu+0x64/0x100
[ 5.622457] [<ffffffff810c8a77>] handle_irq_event+0x27/0x50
[ 5.622457] [<ffffffff810cb965>] handle_edge_irq+0x65/0x140
[ 5.622457] [<ffffffff8101a498>] handle_irq+0x18/0x30
[ 5.622457] [<ffffffff8101a276>] do_IRQ+0x46/0xd0
[ 5.622457] [<ffffffff817f8fff>] common_interrupt+0x7f/0x7f
[ 5.622457] <EOI>
[ 5.622457] [<ffffffff81020d38>] ? mwait_idle+0x68/0x80
[ 5.622457] [<ffffffff8102114a>] arch_cpu_idle+0xa/0x10
[ 5.622457] [<ffffffff810c1b97>] default_idle_call+0x27/0x30
[ 5.622457] [<ffffffff810c1d3b>] cpu_startup_entry+0x19b/0x230
[ 5.622457] [<ffffffff810324c6>] start_secondary+0x136/0x140
[ 5.622457] Code: 00 00 65 48 8b 04 25 28 00 00 00 48 89 45 d0 31 c0 48 8b 47 58 a8 02 0f 84 c5 00 00 00 48 8b 46 50 49 89 f4 65 8b 15 34 bb aa 7e <39> 50 50 74 11 89 50 50 48 8b 46 50 8b 40 50 41 89 86 60 8b 00
[ 5.622457] RIP [<ffffffff8155e614>] qla24xx_process_response_queue+0x44/0x4b0
[ 5.622457] RSP <ffff8801afb03de8>
[ 5.622457] CR2: 0000000000000050
[ 5.622457] ---[ end trace fa2b19c25106d42b ]---
[ 5.622457] Kernel panic - not syncing: Fatal exception in interrupt
The affected code was introduced by commit cdb898c52d1dfad4b4800b83a58b3fe5d352edde
(qla2xxx: Add irq affinity notification).
Only dereference rsp->msix when it has been set so the machine can boot
fine. Possibly rsp->msix is unset because:
[ 3.479679] qla2xxx [0000:00:00.0]-0005: : QLogic Fibre Channel HBA Driver: 8.07.00.33-k.
[ 3.481839] qla2xxx [0000:13:00.0]-001d: : Found an ISP2432 irq 17 iobase 0xffffc90000038000.
[ 3.484081] qla2xxx [0000:13:00.0]-0035:0: MSI-X; Unsupported ISP2432 (0x2, 0x3).
[ 3.485804] qla2xxx [0000:13:00.0]-0037:0: Falling back-to MSI mode -258.
[ 3.890145] scsi host0: qla2xxx
[ 3.891956] qla2xxx [0000:13:00.0]-00fb:0: QLogic QLE2460 - PCI-Express Single Channel 4Gb Fibre Channel HBA.
[ 3.894207] qla2xxx [0000:13:00.0]-00fc:0: ISP2432: PCIe (2.5GT/s x4) @ 0000:13:00.0 hdma+ host#=0 fw=7.03.00 (9496).
[ 5.714774] qla2xxx [0000:13:00.0]-500a:0: LOOP UP detected (4 Gbps).
Signed-off-by: Bruno Prémont <bonbons@linux-vserver.org>
Acked-by: Quinn Tran <quinn.tran@qlogic.com>
CC: <stable@vger.kernel.org> # 4.5+
Fixes: cdb898c52d1dfad4b4800b83a58b3fe5d352edde
Signed-off-by: James Bottomley <jejb@linux.vnet.ibm.com>
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Commit b704f70ce200 ("SCSI: fix bug in scsi_dev_info_list matching")
changed the way vendor- and model-string matching was carried out in the
routine that looks up entries in a SCSI devinfo list. The new matching
code failed to take into account the case of a maximum-length string; in
such cases it could end up testing for a terminating '\0' byte beyond
the end of the memory allocated to the string. This out-of-bounds bug
was detected by UBSAN.
I don't know if anybody has actually encountered this bug. The symptom
would be that a device entry in the blacklist might not be matched
properly if it contained an 8-character vendor name or a 16-character
model name. Such entries certainly exist in scsi_static_device_list.
This patch fixes the problem by adding a check for a maximum-length
string before the '\0' test.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Fixes: b704f70ce200 ("SCSI: fix bug in scsi_dev_info_list matching")
Tested-by: Wilfried Klaebe <linux-kernel@lebenslange-mailadresse.de>
CC: <stable@vger.kernel.org> # v4.4+
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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If we fall back to using LSI on the Croc or Crocodile chip we need to
clear the interrupt so we don't hang the system.
Cc: <stable@vger.kernel.org>
Tested-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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For block drivers that specify a parent device, convert them to use
device_add_disk().
This conversion was done with the following semantic patch:
@@
struct gendisk *disk;
expression E;
@@
- disk->driverfs_dev = E;
...
- add_disk(disk);
+ device_add_disk(E, disk);
@@
struct gendisk *disk;
expression E1, E2;
@@
- disk->driverfs_dev = E1;
...
E2 = disk;
...
- add_disk(E2);
+ device_add_disk(E1, E2);
...plus some manual fixups for a few missed conversions.
Cc: Jens Axboe <axboe@fb.com>
Cc: Keith Busch <keith.busch@intel.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: David S. Miller <davem@davemloft.net>
Cc: James Bottomley <James.Bottomley@hansenpartnership.com>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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Now that we do have pci_request_mem_regions() and pci_release_mem_regions()
at hand, use it in the lpfc driver.
Suggested-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Dick Kennedy <dick.kennedy@broadcom.com>
CC: James Smart <james.smart@avagotech.com>
CC: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
CC: Martin K. Petersen <martin.petersen@oracle.com>
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That macros uses logical "&&" instead of bit-wise "&" which is
apparently wrong. Since the macro is completely unused, simply
remove it, so that nobody can accidentially use it anymore.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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The untagged command case in the 53c700 driver has been broken since
host wide tags were enabled because the replaced scsi_find_tag()
function had a special case for the tag value SCSI_NO_TAG to retrieve
sdev->current_cmnd. The replacement function scsi_host_find_tag() has
no such special case and returns NULL causing untagged commands to
trigger a BUG() in the driver. Inspection shows that the 53c700 is the
only driver using this SCSI_NO_TAG case, so a local fix in the driver
suffices to fix this problem globally.
Fixes: 64d513ac31b - "scsi: use host wide tags by default"
Cc: stable@vger.kernel.org # 4.4+
Reported-by: Helge Deller <deller@gmx.de>
Tested-by: Helge Deller <deller@gmx.de>
Signed-off-by: James Bottomley <jejb@linux.vnet.ibm.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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sas_ata_strategy_handler() adds the works of the ata error handler to
system_unbound_wq. This workqueue asynchronously runs work items, so the
ata error handler will be performed concurrently on different CPUs. In
this case, ->host_failed will be decreased simultaneously in
scsi_eh_finish_cmd() on different CPUs, and become abnormal.
It will lead to permanently inequality between ->host_failed and
->host_busy, and scsi error handler thread won't start running. IO
errors after that won't be handled.
Since all scmds must have been handled in the strategy handler, just
remove the decrement in scsi_eh_finish_cmd() and zero ->host_busy after
the strategy handler to fix this race.
Fixes: 50824d6c5657 ("[SCSI] libsas: async ata-eh")
Cc: stable@vger.kernel.org
Signed-off-by: Wei Fang <fangwei1@huawei.com>
Reviewed-by: James Bottomley <jejb@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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This adds a REQ_OP_FLUSH operation that is sent to request_fn
based drivers by the block layer's flush code, instead of
sending requests with the request->cmd_flags REQ_FLUSH bit set.
Signed-off-by: Mike Christie <mchristi@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
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This patch drops the compat definition of req_op where it matches
the rq_flag_bits definitions, and drops the related old and compat
code that allowed users to set either the op or flags for the operation.
We also then store the operation in the bi_rw/cmd_flags field similar
to how we used to store the bio ioprio where it sat in the upper bits
of the field.
Signed-off-by: Mike Christie <mchristi@redhat.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
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The req operation REQ_OP is separated from the rq_flag_bits
definition. This converts the block layer drivers to
use req_op to get the op from the request struct.
Signed-off-by: Mike Christie <mchristi@redhat.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
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This patch converts the simple bi_rw use cases in the block,
drivers, mm and fs code to set/get the bio operation using
bio_set_op_attrs/bio_op
These should be simple one or two liner cases, so I just did them
in one patch. The next patches handle the more complicated
cases in a module per patch.
Signed-off-by: Mike Christie <mchristi@redhat.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
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We currently set REQ_WRITE/WRITE for all non READ IOs
like discard, flush, writesame, etc. In the next patches where we
no longer set up the op as a bitmap, we will not be able to
detect a operation direction like writesame by testing if REQ_WRITE is
set.
This patch converts the drivers and cgroup to use the
op_is_write helper. This should just cover the simple
cases. I did dm, md and bcache in their own patches
because they were more involved.
Signed-off-by: Mike Christie <mchristi@redhat.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
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For historic reasons, io_opt is in bytes and max_sectors in block layer
sectors. This interface inconsistency is error prone and should be
fixed. But for 4.4--4.7 let's make the unit difference explicit via a
wrapper function.
Fixes: d0eb20a863ba ("sd: Optimal I/O size is in bytes, not sectors")
Cc: stable@vger.kernel.org # 4.4+
Reported-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Tested-by: Andrew Patterson <andrew.patterson@hpe.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Linux fails to boot as a guest with a QEMU CD-ROM:
[ 4.439488] ata2.00: ATAPI: QEMU CD-ROM, 0.8.2, max UDMA/100
[ 4.443649] ata2.00: configured for MWDMA2
[ 4.450267] scsi 1:0:0:0: CD-ROM QEMU QEMU CD-ROM 0.8. PQ: 0 ANSI: 5
[ 4.464317] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
[ 4.464319] ata2.00: BMDMA stat 0x5
[ 4.464339] ata2.00: cmd a0/01:00:00:00:01/00:00:00:00:00/a0 tag 0 dma 16640 in
[ 4.464339] Inquiry 12 01 00 00 ff 00res 48/20:02:00:24:00/00:00:00:00:00/a0 Emask 0x2 (HSM violation)
[ 4.464341] ata2.00: status: { DRDY DRQ }
[ 4.465864] ata2: soft resetting link
[ 4.625971] ata2.00: configured for MWDMA2
[ 4.628290] ata2: EH complete
[ 4.646670] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
[ 4.646671] ata2.00: BMDMA stat 0x5
[ 4.646683] ata2.00: cmd a0/01:00:00:00:01/00:00:00:00:00/a0 tag 0 dma 16640 in
[ 4.646683] Inquiry 12 01 00 00 ff 00res 48/20:02:00:24:00/00:00:00:00:00/a0 Emask 0x2 (HSM violation)
[ 4.646685] ata2.00: status: { DRDY DRQ }
[ 4.648193] ata2: soft resetting link
...
Fix this by suppressing VPD inquiry for this device.
Signed-off-by: Ewan D. Milne <emilne@redhat.com>
Reported-by: Jan Stancek <jstancek@redhat.com>
Tested-by: Jan Stancek <jstancek@redhat.com>
Cc: <stable@vger.kernel.org>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
|
Sebastian Andrzej Siewior
Johannes Thumshirn
Arnd Bergmann
Helge Deller
Jim Gill
Uma Krishnan
Manoj N. Kumar
Douglas Gilbert
Hannes Reinecke
Randy Dunlap
Colin Ian King
John Garry
Cathy Avery
Maurizio Lombardi
Joe Lawrence
Joao Pinto
Muhammad Falak R Wani
Julia Lawall
James Bottomley
Bruno Prémont
Alan Stern
Brian King
Dan Williams
Thomas Huth
James Bottomley
Wei Fang
Mike Christie
Martin K. Petersen
Ewan D. Milne