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Pull SCSI target fixes from Nicholas Bellinger:
"The bulk of the series are bugfixes for qla2xxx target NPIV support
that went in for v3.14-rc1. Also included are a few DIF related
fixes, a qla2xxx fix (Cc'ed to stable) from Greg W., and vhost/scsi
protocol version related fix from Venkatesh.
Also just a heads up that a series to address a number of issues with
iser-target active I/O reset/shutdown is still being tested, and will
be included in a separate -rc6 PULL request"
* git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
vhost/scsi: Check LUN structure byte 0 is set to 1, per spec
qla2xxx: Fix kernel panic on selective retransmission request
Target/sbc: Don't use sg as iterator in sbc_verify_read
target: Add DIF sense codes in transport_generic_request_failure
target/sbc: Fix sbc_dif_copy_prot addr offset bug
tcm_qla2xxx: Fix NAA formatted name for NPIV WWPNs
tcm_qla2xxx: Perform configfs depend/undepend for base_tpg
tcm_qla2xxx: Add NPIV specific enable/disable attribute logic
qla2xxx: Check + fail when npiv_vports_inuse exists in shutdown
qla2xxx: Fix qlt_lport_register base_vha callback race
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A selective retransmission request (SRR) is a fibre-channel
protocol control request which provides support for requesting
retransmission of a data sequence in response to an issue such as
frame loss or corruption. These events are experienced
infrequently in fibre-channel based networks which makes
it difficult to test and assess codepaths which handle these
events.
We were fortunate enough, for some definition of fortunate, to
have a metro-area single-mode SAN link which, at 10 GBPS
sustained load levels, would consistently generate SRR's in
a SCST based target implementation using our SCST/in-kernel
Qlogic target interface driver. In response to an SRR the
in-kernel Qlogic target driver immediately panics resulting
in a catastrophic storage failure for serviced initiators.
The culprit was a debug statement in the qla_target.c file which
does not verify that a pointer to the SCSI CDB is not null.
The unchecked pointer dereference results in the kernel panic
and resultant system failure.
The other two references to the SCSI CDB by the SRR handling code
use a ternary operator to verify a non-null pointer is being
acted on. This patch simply adds a similar test to the implicated
debug statement.
This patch is a candidate for any stable kernel being maintained
since it addresses a potentially catastrophic event with
minimal downside.
Signed-off-by: Dr. Greg Wettstein <greg@enjellic.com>
Cc: <stable@vger.kernel.org> #3.5+
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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This patch fixes the NAA formatted name used by EVPD=0x83
device identifer to reflect the proper NPIV enabled WWPN.
Cc: Sawan Chandak <sawan.chandak@qlogic.com>
Cc: Quinn Tran <quinn.tran@qlogic.com>
Cc: Saurav Kashyap <saurav.kashyap@qlogic.com>
Cc: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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This patch performs configfs_depend_item() during TPG enable for
base_tpg (eg: non-NPIV) ports, and configfs_undepend_item() during
TPG disable for base_tpg.
This is done to ensure that any attempt to configfs rmdir a base_tpg
with active NPIV ports will fail with -EBUSY, until all associated
NPIV ports have been explicitly shutdown and base_tpg disabled.
Note that the actual configfs_[un]depend_item() is done from seperate
process context, as these are not intended to be called directly
from configfs callbacks.
Cc: Sawan Chandak <sawan.chandak@qlogic.com>
Cc: Quinn Tran <quinn.tran@qlogic.com>
Cc: Saurav Kashyap <saurav.kashyap@qlogic.com>
Cc: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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This patch adds seperate logic for NPIV specific enable/disable
attribute logic, as NPIV vs. non-NPIV enable/disable ends up being
different enough to warrent seperate logic for setting configfs
tpg_group dependencies in the non-NPIV case.
Cc: Sawan Chandak <sawan.chandak@qlogic.com>
Cc: Quinn Tran <quinn.tran@qlogic.com>
Cc: Saurav Kashyap <saurav.kashyap@qlogic.com>
Cc: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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This patch adds an check to qlt_stop_phase1() to avoid shutdown
when the base_vha contains a non-zero fc_host->npiv_vports_inuse
count.
This includes holding qla_tgt_mutex in qlt_stop_phase1() between
the fc_host->npiv_vports_inuse check + setting of tgt->tgt_stop to
avoid a possible race between qlt_lport_register() -> tcm_qla2xxx
-> tcm_qla2xxx_lport_register_npiv_cb() calling fc_vport_create().
Cc: Sawan Chandak <sawan.chandak@qlogic.com>
Cc: Quinn Tran <quinn.tran@qlogic.com>
Cc: Saurav Kashyap <saurav.kashyap@qlogic.com>
Cc: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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This patch closes a race between qlt_lport_register() and
tcm_qla2xxx callback logic by holding qla_tgt_mutex before
making the callback.
In order for this to work, the qlt_add_target() and
qlt_remove_target() code has been changed to avoid the
accessing qla_tgt_mutex + list_[add,del] for NPIV enabled
ports.
This bug introduced in v3.14-rc1 code with commit 49a47f2.
Cc: Sawan Chandak <sawan.chandak@qlogic.com>
Cc: Quinn Tran <quinn.tran@qlogic.com>
Cc: Saurav Kashyap <saurav.kashyap@qlogic.com>
Cc: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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Pull ARM fixes from Russell King:
"A range of ARM fixes. Biggest change is the stage-2 attributes used
for for hyp mode which were wrong. I've killed some bits in a couple
of DT files which turned out not to be required, and a few other
fixes.
One fix touches code outside of arch/arm, which is related to sorting
out the DMA masks correctly. There is a long standing issue with the
conversion from PFNs to addresses where people assume that shifting an
unsigned long left by PAGE_SHIFT results in a correct address. This
is not the case with C: the integer promotion happens at assignment
after evaluation. This fixes the recently introduced dma_max_pfn()
function, but there's a number of other places where we try this
directly on an unsigned long in the mm code"
* 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
ARM: 7957/1: add DSB after icache flush in __flush_icache_all()
Fix uses of dma_max_pfn() when converting to a limiting address
ARM: 7955/1: spinlock: ensure we have a compiler barrier before sev
ARM: 7953/1: mm: ensure TLB invalidation is complete before enabling MMU
ARM: 7952/1: mm: Fix the memblock allocation for LPAE machines
ARM: 7950/1: mm: Fix stage-2 device memory attributes
ARM: dts: fix spdif pinmux configuration
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We must use a 64-bit for this, otherwise overflowed bits get lost, and
that can result in a lower than intended value set.
Fixes: 8e0cb8a1f6ac ("ARM: 7797/1: mmc: Use dma_max_pfn(dev) helper for bounce_limit calculations")
Fixes: 7d35496dd982 ("ARM: 7796/1: scsi: Use dma_max_pfn(dev) helper for bounce_limit calculations")
Tested-Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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The only place this struct member is touched is in one INIT_LIST_HEAD.
Signed-off-by: Roland Dreier <roland@purestorage.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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Pull SCSI target updates from Nicholas Bellinger:
"The highlights this round include:
- add support for SCSI Referrals (Hannes)
- add support for T10 DIF into target core (nab + mkp)
- add support for T10 DIF emulation in FILEIO + RAMDISK backends (Sagi + nab)
- add support for T10 DIF -> bio_integrity passthrough in IBLOCK backend (nab)
- prep changes to iser-target for >= v3.15 T10 DIF support (Sagi)
- add support for qla2xxx N_Port ID Virtualization - NPIV (Saurav + Quinn)
- allow percpu_ida_alloc() to receive task state bitmask (Kent)
- fix >= v3.12 iscsi-target session reset hung task regression (nab)
- fix >= v3.13 percpu_ref se_lun->lun_ref_active race (nab)
- fix a long-standing network portal creation race (Andy)"
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (51 commits)
target: Fix percpu_ref_put race in transport_lun_remove_cmd
target/iscsi: Fix network portal creation race
target: Report bad sector in sense data for DIF errors
iscsi-target: Convert gfp_t parameter to task state bitmask
iscsi-target: Fix connection reset hang with percpu_ida_alloc
percpu_ida: Make percpu_ida_alloc + callers accept task state bitmask
iscsi-target: Pre-allocate more tags to avoid ack starvation
qla2xxx: Configure NPIV fc_vport via tcm_qla2xxx_npiv_make_lport
qla2xxx: Enhancements to enable NPIV support for QLOGIC ISPs with TCM/LIO.
qla2xxx: Fix scsi_host leak on qlt_lport_register callback failure
IB/isert: pass scatterlist instead of cmd to fast_reg_mr routine
IB/isert: Move fastreg descriptor creation to a function
IB/isert: Avoid frwr notation, user fastreg
IB/isert: seperate connection protection domains and dma MRs
tcm_loop: Enable DIF/DIX modes in SCSI host LLD
target/rd: Add DIF protection into rd_execute_rw
target/rd: Add support for protection SGL setup + release
target/rd: Refactor rd_build_device_space + rd_release_device_space
target/file: Add DIF protection support to fd_execute_rw
target/file: Add DIF protection init/format support
...
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Pull core block IO changes from Jens Axboe:
"The major piece in here is the immutable bio_ve series from Kent, the
rest is fairly minor. It was supposed to go in last round, but
various issues pushed it to this release instead. The pull request
contains:
- Various smaller blk-mq fixes from different folks. Nothing major
here, just minor fixes and cleanups.
- Fix for a memory leak in the error path in the block ioctl code
from Christian Engelmayer.
- Header export fix from CaiZhiyong.
- Finally the immutable biovec changes from Kent Overstreet. This
enables some nice future work on making arbitrarily sized bios
possible, and splitting more efficient. Related fixes to immutable
bio_vecs:
- dm-cache immutable fixup from Mike Snitzer.
- btrfs immutable fixup from Muthu Kumar.
- bio-integrity fix from Nic Bellinger, which is also going to stable"
* 'for-3.14/core' of git://git.kernel.dk/linux-block: (44 commits)
xtensa: fixup simdisk driver to work with immutable bio_vecs
block/blk-mq-cpu.c: use hotcpu_notifier()
blk-mq: for_each_* macro correctness
block: Fix memory leak in rw_copy_check_uvector() handling
bio-integrity: Fix bio_integrity_verify segment start bug
block: remove unrelated header files and export symbol
blk-mq: uses page->list incorrectly
blk-mq: use __smp_call_function_single directly
btrfs: fix missing increment of bi_remaining
Revert "block: Warn and free bio if bi_end_io is not set"
block: Warn and free bio if bi_end_io is not set
blk-mq: fix initializing request's start time
block: blk-mq: don't export blk_mq_free_queue()
block: blk-mq: make blk_sync_queue support mq
block: blk-mq: support draining mq queue
dm cache: increment bi_remaining when bi_end_io is restored
block: fixup for generic bio chaining
block: Really silence spurious compiler warnings
block: Silence spurious compiler warnings
block: Kill bio_pair_split()
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Pull infiniband updates from Roland Dreier:
"Main batch of InfiniBand/RDMA changes for 3.14:
- Flow steering for InfiniBand UD traffic
- IP-based addressing for IBoE aka RoCE
- Pass SRP submaintainership from Dave to Bart
- SRP transport fixes from Bart
- Add the new Cisco usNIC low-level device driver
- Various other fixes"
* tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (75 commits)
IB/mlx5: Verify reserved fields are cleared
IB/mlx5: Remove old field for create mkey mailbox
IB/mlx5: Abort driver cleanup if teardown hca fails
IB/mlx5: Allow creation of QPs with zero-length work queues
mlx5_core: Fix PowerPC support
mlx5_core: Improve debugfs readability
IB/mlx5: Add support for resize CQ
IB/mlx5: Implement modify CQ
IB/mlx5: Make sure doorbell record is visible before doorbell
mlx5_core: Use mlx5 core style warning
IB/mlx5: Clear out struct before create QP command
mlx5_core: Fix out arg size in access_register command
RDMA/nes: Slight optimization of Ethernet address compare
IB/qib: Fix QP check when looping back to/from QP1
RDMA/cxgb4: Fix gcc warning on 32-bit arch
IB/usnic: Remove unused includes of <linux/version.h>
RDMA/amso1100: Add check if cache memory was allocated before freeing it
IPoIB: Report operstate consistently when brought up without a link
IB/core: Fix unused variable warning
RDMA/cma: Handle global/non-linklocal IPv6 addresses in cma_check_linklocal()
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Pull virtio update from Rusty Russell:
"A few simple fixes. Quiet cycle"
* tag 'virtio-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux:
drivers: virtio: Mark function virtballoon_migratepage() as static in virtio_balloon.c
virtio-scsi: Fix hotcpu_notifier use-after-free with virtscsi_freeze
virtio: pci: remove unnecessary pci_set_drvdata()
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Pull trivial tree updates from Jiri Kosina:
"Usual rocket science stuff from trivial.git"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (39 commits)
neighbour.h: fix comment
sched: Fix warning on make htmldocs caused by wait.h
slab: struct kmem_cache is protected by slab_mutex
doc: Fix typo in USB Gadget Documentation
of/Kconfig: Spelling s/one/once/
mkregtable: Fix sscanf handling
lp5523, lp8501: comment improvements
thermal: rcar: comment spelling
treewide: fix comments and printk msgs
IXP4xx: remove '1 &&' from a condition check in ixp4xx_restart()
Documentation: update /proc/uptime field description
Documentation: Fix size parameter for snprintf
arm: fix comment header and macro name
asm-generic: uaccess: Spelling s/a ny/any/
mtd: onenand: fix comment header
doc: driver-model/platform.txt: fix a typo
drivers: fix typo in DEVTMPFS_MOUNT Kconfig help text
doc: Fix typo (acces_process_vm -> access_process_vm)
treewide: Fix typos in printk
drivers/gpu/drm/qxl/Kconfig: reformat the help text
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Pull SCSI updates from James Bottomley:
"This patch set is a lot of driver updates for qla4xxx, bfa, hpsa,
qla2xxx. It also removes the aic7xxx_old driver (which has been
deprecated for nearly a decade) and adds support for deadlines in
error handling"
* tag 'scsi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (75 commits)
[SCSI] hpsa: allow SCSI mid layer to handle unit attention
[SCSI] hpsa: do not require board "not ready" status after hard reset
[SCSI] hpsa: enable unit attention reporting
[SCSI] hpsa: rename scsi prefetch field
[SCSI] hpsa: use workqueue instead of kernel thread for lockup detection
[SCSI] ipr: increase dump size in ipr driver
[SCSI] mac_scsi: Fix crash on out of memory
[SCSI] st: fix enlarge_buffer
[SCSI] qla1280: Annotate timer on stack so object debug does not complain
[SCSI] qla4xxx: Update driver version to 5.04.00-k3
[SCSI] qla4xxx: Recreate chap data list during get chap operation
[SCSI] qla4xxx: Add support for ISCSI_PARAM_LOCAL_IPADDR sysfs attr
[SCSI] libiscsi: Add local_ipaddr parameter in iscsi_conn struct
[SCSI] scsi_transport_iscsi: Export ISCSI_PARAM_LOCAL_IPADDR attr for iscsi_connection
[SCSI] qla4xxx: Add host statistics support
[SCSI] scsi_transport_iscsi: Add host statistics support
[SCSI] qla4xxx: Added support for Diagnostics MBOX command
[SCSI] bfa: Driver version upgrade to 3.2.23.0
[SCSI] bfa: change FC_ELS_TOV to 20sec
[SCSI] bfa: Observed auto D-port mode instead of manual
...
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Pull PCI updates from Bjorn Helgaas:
"PCI changes for the v3.14 merge window:
Resource management
- Change pci_bus_region addresses to dma_addr_t (Bjorn Helgaas)
- Support 64-bit AGP BARs (Bjorn Helgaas, Yinghai Lu)
- Add pci_bus_address() to get bus address of a BAR (Bjorn Helgaas)
- Use pci_resource_start() for CPU address of AGP BARs (Bjorn Helgaas)
- Enforce bus address limits in resource allocation (Yinghai Lu)
- Allocate 64-bit BARs above 4G when possible (Yinghai Lu)
- Convert pcibios_resource_to_bus() to take pci_bus, not pci_dev (Yinghai Lu)
PCI device hotplug
- Major rescan/remove locking update (Rafael J. Wysocki)
- Make ioapic builtin only (not modular) (Yinghai Lu)
- Fix release/free issues (Yinghai Lu)
- Clean up pciehp (Bjorn Helgaas)
- Announce pciehp slot info during enumeration (Bjorn Helgaas)
MSI
- Add pci_msi_vec_count(), pci_msix_vec_count() (Alexander Gordeev)
- Add pci_enable_msi_range(), pci_enable_msix_range() (Alexander Gordeev)
- Deprecate "tri-state" interfaces: fail/success/fail+info (Alexander Gordeev)
- Export MSI mode using attributes, not kobjects (Greg Kroah-Hartman)
- Drop "irq" param from *_restore_msi_irqs() (DuanZhenzhong)
SR-IOV
- Clear NumVFs when disabling SR-IOV in sriov_init() (ethan.zhao)
Virtualization
- Add support for save/restore of extended capabilities (Alex Williamson)
- Add Virtual Channel to save/restore support (Alex Williamson)
- Never treat a VF as a multifunction device (Alex Williamson)
- Add pci_try_reset_function(), et al (Alex Williamson)
AER
- Ignore non-PCIe error sources (Betty Dall)
- Support ACPI HEST error sources for domains other than 0 (Betty Dall)
- Consolidate HEST error source parsers (Bjorn Helgaas)
- Add a TLP header print helper (Borislav Petkov)
Freescale i.MX6
- Remove unnecessary code (Fabio Estevam)
- Make reset-gpio optional (Marek Vasut)
- Report "link up" only after link training completes (Marek Vasut)
- Start link in Gen1 before negotiating for Gen2 mode (Marek Vasut)
- Fix PCIe startup code (Richard Zhu)
Marvell MVEBU
- Remove duplicate of_clk_get_by_name() call (Andrew Lunn)
- Drop writes to bridge Secondary Status register (Jason Gunthorpe)
- Obey bridge PCI_COMMAND_MEM and PCI_COMMAND_IO bits (Jason Gunthorpe)
- Support a bridge with no IO port window (Jason Gunthorpe)
- Use max_t() instead of max(resource_size_t,) (Jingoo Han)
- Remove redundant of_match_ptr (Sachin Kamat)
- Call pci_ioremap_io() at startup instead of dynamically (Thomas Petazzoni)
NVIDIA Tegra
- Disable Gen2 for Tegra20 and Tegra30 (Eric Brower)
Renesas R-Car
- Add runtime PM support (Valentine Barshak)
- Fix rcar_pci_probe() return value check (Wei Yongjun)
Synopsys DesignWare
- Fix crash in dw_msi_teardown_irq() (Bjørn Erik Nilsen)
- Remove redundant call to pci_write_config_word() (Bjørn Erik Nilsen)
- Fix missing MSI IRQs (Harro Haan)
- Add dw_pcie prefix before cfg_read/write (Pratyush Anand)
- Fix I/O transfers by using CPU (not realio) address (Pratyush Anand)
- Whitespace cleanup (Jingoo Han)
EISA
- Call put_device() if device_register() fails (Levente Kurusa)
- Revert EISA initialization breakage ((Bjorn Helgaas)
Miscellaneous
- Remove unused code, including PCIe 3.0 interfaces (Stephen Hemminger)
- Prevent bus conflicts while checking for bridge apertures (Bjorn Helgaas)
- Stop clearing bridge Secondary Status when setting up I/O aperture (Bjorn Helgaas)
- Use dev_is_pci() to identify PCI devices (Yijing Wang)
- Deprecate DEFINE_PCI_DEVICE_TABLE (Joe Perches)
- Update documentation 00-INDEX (Erik Ekman)"
* tag 'pci-v3.14-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (119 commits)
Revert "EISA: Initialize device before its resources"
Revert "EISA: Log device resources in dmesg"
vfio-pci: Use pci "try" reset interface
PCI: Check parent kobject in pci_destroy_dev()
xen/pcifront: Use global PCI rescan-remove locking
powerpc/eeh: Use global PCI rescan-remove locking
PCI: Fix pci_check_and_unmask_intx() comment typos
PCI: Add pci_try_reset_function(), pci_try_reset_slot(), pci_try_reset_bus()
MPT / PCI: Use pci_stop_and_remove_bus_device_locked()
platform / x86: Use global PCI rescan-remove locking
PCI: hotplug: Use global PCI rescan-remove locking
pcmcia: Use global PCI rescan-remove locking
ACPI / hotplug / PCI: Use global PCI rescan-remove locking
ACPI / PCI: Use global PCI rescan-remove locking in PCI root hotplug
PCI: Add global pci_lock_rescan_remove()
PCI: Cleanup pci.h whitespace
PCI: Reorder so actual code comes before stubs
PCI/AER: Support ACPI HEST AER error sources for PCI domains other than 0
ACPICA: Add helper macros to extract bus/segment numbers from HEST table.
PCI: Make local functions static
...
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The following command has been used to verify that the kernel-doc
tool no longer complains about undocumented fields:
scripts/kernel-doc -html drivers/scsi/scsi_transport_srp.c \
include/scsi/scsi_transport_srp.h >srp-transport-doc.html
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: Sebastian Riemer <sebastian.riemer@profitbricks.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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The rport timers must be stopped before the SRP initiator destroys the
resources associated with the SCSI host. This is necessary because
otherwise the callback functions invoked from the SRP transport layer
could trigger a use-after-free. Stopping the rport timers before
invoking scsi_remove_host() can trigger long delays in the SCSI error
handler if a transport layer failure occurs while scsi_remove_host()
is in progress. Hence move the code for stopping the rport timers from
srp_rport_release() into a new function and invoke that function after
scsi_remove_host() has finished. This patch fixes the following
sporadic kernel crash:
kernel BUG at include/asm-generic/dma-mapping-common.h:64!
invalid opcode: 0000 [#1] SMP
RIP: 0010:[<ffffffffa03b20b1>] [<ffffffffa03b20b1>] srp_unmap_data+0x121/0x130 [ib_srp]
Call Trace:
[<ffffffffa03b20fc>] srp_free_req+0x3c/0x80 [ib_srp]
[<ffffffffa03b2188>] srp_finish_req+0x48/0x70 [ib_srp]
[<ffffffffa03b21fb>] srp_terminate_io+0x4b/0x60 [ib_srp]
[<ffffffffa03a6fb5>] __rport_fail_io_fast+0x75/0x80 [scsi_transport_srp]
[<ffffffffa03a7438>] rport_fast_io_fail_timedout+0x88/0xc0 [scsi_transport_srp]
[<ffffffff8108b370>] worker_thread+0x170/0x2a0
[<ffffffff81090876>] kthread+0x96/0xa0
[<ffffffff8100c0ca>] child_rip+0xa/0x20
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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The current behavior of the SRP transport layer when a transport layer
error is encountered is to block SCSI command processing only if
fast_io_fail_tmo != off. The current behavior of the FC transport
layer when a transport layer error is encountered is to block SCSI
command processing no matter which value fast_io_fail_tmo has been set
to. Make the behavior of the SRP transport layer consistent with that
of the FC transport layer to avoid confusion.
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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Pull m68k updates from Geert Uytterhoeven:
- Zorro bus cleanups and UAPI revival
- Bootinfo cleanups and UAPI revival
- Kexec support
- Memory size reductions and bug fixes for multi-platform kernels
- Polled interrupt support for Atari EtherNAT, EtherNEC and NetUSBee
- Machine-specific random_get_entropy()
- Defconfig updates and cleanups
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k: (46 commits)
m68k/mac: Make SCC reset work more reliably
m68k/irq - Use polled IRQ flag for MFP timer cascaded interrupts
m68k: Update defconfigs for v3.13-rc1
m68k/defconfig: Enable EARLY_PRINTK
m68k/mm: kmap spelling/grammar fixes
m68k: Convert arch/m68k/kernel/traps.c to pr_*()
m68k: Convert arch/m68k/mm/fault.c to pr_*()
m68k/mm: Check for mm != NULL in do_page_fault() debug code
m68k/defconfig: Disable /sbin/hotplug fork-bomb by default
m68k/atari: Hide RTC_PORT() macro from rtc-cmos
m68k/amiga,atari: Fix specifying multiple debug= parameters
m68k/defconfig: Use ext4 for ext2/ext3 file systems
m68k: Add support to export bootinfo in procfs
m68k: Add kexec support
m68k/mac: Mark Mac IIsi ADB driver BROKEN
m68k/amiga: Provide mach_random_get_entropy()
m68k: Add infrastructure for machine-specific random_get_entropy()
m68k/atari: Call paging_init() before nf_init()
m68k: Remove superfluous inclusions of <asm/bootinfo.h>
m68k/UAPI: Use proper types (endianness/size) in <asm/bootinfo*.h>
...
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This patch changes qla2xxx qlt_lport_register() code to accept
target_lport_ptr + npiv_wwpn + npiv_wwnn parameters, and updates
tcm_qla2xxx to use the new tcm_qla2xxx_lport_register_npiv_cb()
callback for invoking fc_vport_create() from configfs context
via tcm_qla2xxx_npiv_make_lport() code.
In order for this to work, the qlt_lport_register() callback is
now called without holding qla_tgt_mutex, as the fc_vport creation
process will call qlt_vport_create() -> qlt_add_target(), which
already expects to acquire it.
It enforces /sys/kernel/config/target/qla2xxx_npiv/$NPIV_WWPN
naming in the following format:
$PHYSICAL_WWPN@$NPIV_WWPN:$NPIV_WWNN
and assumes the $PHYSICAL_WWPN in question has already had been
configured for target mode in non NPIV mode.
Finally, it updates existing tcm_qla2xxx_lport_register_cb() logic
to setup the non NPIV assignments that have now been moved out of
qlt_lport_register() code.
Cc: Sawan Chandak <sawan.chandak@qlogic.com>
Cc: Quinn Tran <quinn.tran@qlogic.com>
Cc: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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Signed-off-by: Sawan Chandak <sawan.chandak@qlogic.com>
Signed-off-by: Quinn Tran <quinn.tran@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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This patch fixes a possible scsi_host reference leak in qlt_lport_register(),
when a non zero return from the passed (*callback) does not call drop the
local reference via scsi_host_put() before returning.
This currently does not effect existing tcm_qla2xxx code as the passed callback
will never fail, but fix this up regardless for future code.
Cc: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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vqs are freed in virtscsi_freeze but the hotcpu_notifier is not
unregistered. We will have a use-after-free usage when the notifier
callback is called after virtscsi_freeze.
Fixes: 285e71ea6f3583a85e27cb2b9a7d8c35d4c0d558
("virtio-scsi: reset virtqueue affinity when doing cpu hotplug")
Cc: stable@vger.kernel.org
Signed-off-by: Asias He <asias.hejun@gmail.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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Race conditions are theoretically possible between the MPT PCI device
removal and the generic PCI bus rescan and device removal that can be
triggered via sysfs.
To avoid those race conditions make the MPT PCI code use
pci_stop_and_remove_bus_device_locked().
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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This patch fixed several typo in printk from various
part of kernel source.
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Needed to bring blk-mq uptodate, since changes have been going in
since for-3.14/core was established.
Fixup merge issues related to the immutable biovec changes.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Conflicts:
block/blk-flush.c
fs/btrfs/check-integrity.c
fs/btrfs/extent_io.c
fs/btrfs/scrub.c
fs/logfs/dev_bdev.c
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These interfaces:
pcibios_resource_to_bus(struct pci_dev *dev, *bus_region, *resource)
pcibios_bus_to_resource(struct pci_dev *dev, *resource, *bus_region)
took a pci_dev, but they really depend only on the pci_bus. And we want to
use them in resource allocation paths where we have the bus but not a
device, so this patch converts them to take the pci_bus instead of the
pci_dev:
pcibios_resource_to_bus(struct pci_bus *bus, *bus_region, *resource)
pcibios_bus_to_resource(struct pci_bus *bus, *resource, *bus_region)
In fact, with standard PCI-PCI bridges, they only depend on the host
bridge, because that's the only place address translation occurs, but
we aren't going that far yet.
[bhelgaas: changelog]
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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We were clobbering the SCSI status and setting
cmd->result = DID_SOFT_ERROR << 16; to get a retry,
but better to let the mid layer handle the unit
attention.
Signed-off-by: Matt Gates <matthew.gates@hp.com>
Acked-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Immediately following a hard board reset, There are some
mandatory delays during which we must not access the board
and during which we might miss the "not ready" status,
therefore it is a mistake to look for and expect to see
the "not ready" status.
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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This used to be the default, but at some point the firmware guys
changed the default and I failed to notice. Now to get unit
attention notifications, you must twiddle a bit indicating you
want them.
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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The field contains more bits than just the one
to indicate whether scsi prefetch should be turned on.
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Much simpler and avoids races starting/stopping the thread.
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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To help debugging several new SAS controllers, increase the dump size in ipr
driver to 80MB.
Signed-off-by: Wen Xiong <wenxiong@linux.vnet.ibm.com>
Acked-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Missing check on scsi_register
Signed-off-by: Alan Cox <gnomes@lxorguk.ukuu.org.uk>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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This patch removes a bug in enlarge_buffer() that can make a
read or write fail under special conditions.
After changing TRY_DIRECT_IO to 0 and ST_MAX_SG to 32 in
st_options.h, a program that writes a first block of 128k and
than a second bigger block (e.g. 256k) fails. The second write
returns errno EOVERFLOW, as enlarge_buffer() checks the sg list
and detects that it already is full.
As enlarge_buffer uses different page allocation orders
depending on the size of the buffer needed, the check does not
make sense.
Signed-off-by: Bodo Stroesser <bstroesser@ts.fujitsu.com>
Acked-by: Kai Mäkisara <kai.makisara@kolumbus.fi>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Object Debug option in 3.13-rc1 resultsin the following warning, cure
it by annotating the timer to be on stack. The timer is deleted in the
same function so stack seems OK.
ODEBUG: object is on stack, but not annotated
------------[ cut here ]------------
WARNING: CPU: 6 PID: 18 at lib/debugobjects.c:300 __debug_object_init+0x184/0x240()
Modules linked in:
CPU: 6 PID: 18 Comm: kworker/u4:1 Tainted: G W 3.13.0-rc1 #16
Workqueue: events_unbound async_run_entry_fn
Call Trace:
[00000000004585cc] warn_slowpath_common+0x4c/0x80
[0000000000458614] warn_slowpath_null+0x14/0x40
[000000000063d524] __debug_object_init+0x184/0x240
[000000000063d5fc] debug_object_init+0x1c/0x40
[00000000004645ec] init_timer_key+0xc/0x60
[00000000006cca60] qla1280_mailbox_command+0xc0/0x2a0
[00000000006ccdd4] qla1280_set_target_parameters+0x194/0x220
[00000000006cd324] qla1280_slave_configure+0x384/0x3c0
[00000000006a5d48] scsi_add_lun+0x5c8/0x640
[00000000006a62b8] scsi_probe_and_add_lun+0x1b8/0x2e0
[00000000006a6c2c] __scsi_scan_target+0x8c/0x100
[00000000006a6cf4] scsi_scan_channel+0x54/0xa0
[00000000006a7008] scsi_scan_host_selected+0xc8/0x120
[00000000006a70e0] do_scsi_scan_host+0x80/0xa0
[00000000006a7164] do_scan_async+0x4/0x20
[00000000004817b8] async_run_entry_fn+0x58/0x120
---[ end trace 9a1420108ebfd590 ]---
Signed-off-by: Meelis Roos <mroos@linux.ee>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Recreate the chap data list during the get chap operation in
qla4xxx_get_chap_list().
Signed-off-by: Adheer Chandravanshi <adheer.chandravanshi@qlogic.com>
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Signed-off-by: Adheer Chandravanshi <adheer.chandravanshi@qlogic.com>
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Add local_ipaddr param and support get/set operations on it.
Signed-off-by: Adheer Chandravanshi <adheer.chandravanshi@qlogic.com>
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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This attribute specifies the local IP address used to establish connection.
Signed-off-by: Adheer Chandravanshi <adheer.chandravanshi@qlogic.com>
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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The statistics include MAC, TCP/IP & iSCSI statistics.
Signed-off-by: Lalit Chandivade <lalit.chandivade@qlogic.com>
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Add transport_iscsi hooks to get aggregate host statistics.
The statistics include MAC, TCP/IP & iSCSI statistics.
Signed-off-by: Lalit Chandivade <lalit.chandivade@qlogic.com>
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Added support for Diagnostics MBOX command via BSG Vendor HST_VENDOR
interface. This command provides various tests for validating hardware
functionality.
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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This patch fixes a possible scsi_host reference leak in qlt_lport_register(),
when a non zero return from the passed (*callback) does not call drop the
local reference via scsi_host_put() before returning.
This currently does not effect existing tcm_qla2xxx code as the passed callback
will never fail, but fix this up regardless for future code.
Cc: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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Patch includes changes to upgrade bfa driver version to 3.2.23.0 and use
firmware version 3.2.3.0
Signed-off-by: Vijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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As per the FCP specs, the timeout for issuing ABTS is 20 sec; not 21
sec. Hence setting the TOV to 20 sec.
Signed-off-by: Vijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Linus Torvalds
Dr. Greg Wettstein
Nicholas Bellinger
Russell King
Roland Dreier
James Bottomley
Bart Van Assche
Saurav Kashyap
Asias He
Rafael J. Wysocki
Masanari Iida
Jens Axboe
Yinghai Lu
Matt Gates
Stephen M. Cameron
wenxiong@linux.vnet.ibm.com
Alan
Bodo Stroesser
Meelis Roos
Vikas Chaudhary
Adheer Chandravanshi
Lalit Chandivade
Vijaya Mohan Guvva