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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"This is a set of nine fixes (and one author update).
The libsas one should fix discovery in eSATA devices, the WRITE_SAME
one is the largest, but it should fix a lot of problems we've been
getting with the emulated RAID devices (they've been effectively lying
about support and then firmware has been choking on the commands).
The rest are various crash, hang or warn driver fixes"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
[SCSI] bfa: Fix crash when symb name set for offline vport
[SCSI] enclosure: fix WARN_ON in dual path device removing
[SCSI] pm80xx: Tasklets synchronization fix.
[SCSI] pm80xx: Resetting the phy state.
[SCSI] pm80xx: Fix for direct attached device.
[SCSI] pm80xx: Module author addition
[SCSI] hpsa: return 0 from driver probe function on success, not 1
[SCSI] hpsa: do not discard scsi status on aborted commands
[SCSI] Disable WRITE SAME for RAID and virtual host adapter drivers
[SCSI] libsas: fix usage of ata_tf_to_fis
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This patch fixes a crash when tried setting symbolic name for an offline
vport through sysfs. Crash is due to uninitialized pointer lport->ns,
which gets initialized only on linkup (port online).
Signed-off-by: Vijaya Mohan Guvva <vmohan@brocade.com>
Cc: stable@vger.kernel.org
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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When multiple vectors are used, the vector variable is over written,
resulting in unhandled operation for those vectors.
This fix prevents the problem by maitaining HBA instance and
vector values for each irq.
[jejb: checkpatch fixes]
Signed-off-by: Nikith.Ganigarakoppal@pmcs.com
Signed-off-by: Anandkumar.Santhanam@pmcs.com
Reviewed-by: Jack Wang <jinpu.wang@profitbricks.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Setting the phy state for hard reset response.
After sending hard reset for a device ,phy down event sets
the phy state to zero but for phy up event it will not set
the phy state again.This will cause problem to successive
hard resets.
Signed-off-by: Nikith.Ganigarakoppal@pmcs.com
Signed-off-by: Anandkumar.Santhanam@pmcs.com
Reviewed-by: Jack Wang <jinpu.wang@profitbricks.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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In case of direct attached SATA device delay is not enough.
It will give crash for set device state command response and
wait_for_completion is the best solution for this.
Signed-off-by: Nikith.Ganigarakoppal@pmcs.com
Signed-off-by: Anandkumar.Santhanam@pmcs.com
Reviewed-by: Jack Wang <jinpu.wang@profitbricks.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Signed-off-by: Nikith.Ganigarakoppal@pmcs.com
Signed-off-by: Anandkumar.Santhanam@pmcs.com
Reviewed-by: Jack Wang <jinpu.wang@profitbricks.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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A return value of 1 is interpreted as an error. See pci_driver.
in local_pci_probe(). If you're wondering how this ever could
have worked, it's because it used to be the case that only return
values less than zero were interpreted as failure. But even in
the current kernel if the driver registers its various entry
points with the kernel, and then returns a value which is
interpreted as failure, those registrations aren't undone, so
the driver still mostly works. However, the driver's remove
function wouldn't be called on rmmod, and pci power management
functions wouldn't work. In the case of Smart Array, since it
has a battery backed cache (or else no cache) even if the driver
is not shut down properly as long as there is no outstanding
i/o, nothing too bad happens, which is why it took so long to
notice.
Requesting backport to stable because the change to pci-driver.c
which requires driver probe functions to return 0 occurred between
2.6.35 and 2.6.36 (the pci power management breakage) and again
between 3.7 and 3.8 (pci_dev->driver getting set to NULL in
local_pci_probe() preventing driver remove function from being
called on rmmod.)
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Cc: stable@vger.kernel.org
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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We inadvertantly discarded the scsi status for aborted commands.
For some commands (e.g. reads from tape drives) these can't be retried,
and if we discarded the scsi status, the scsi mid layer couldn't notice
anything was wrong and the error was not reported.
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Cc: stable@vger.kernel.org
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Some host adapters do not pass commands through to the target disk
directly. Instead they provide an emulated target which may or may not
accurately report its capabilities. In some cases the physical device
characteristics are reported even when the host adapter is processing
commands on the device's behalf. This can lead to adapter firmware hangs
or excessive I/O errors.
This patch disables WRITE SAME for devices connected to host adapters
that provide an emulated target. Driver writers can disable WRITE SAME
by setting the no_write_same flag in the host adapter template.
[jejb: fix up rejections due to eh_deadline patch]
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Cc: stable@kernel.org
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Since commit 110dd8f19df5 "[SCSI] libsas: fix scr_read/write users and
update the libata documentation" we have been passing pmp=1 and is_cmd=0
to ata_tf_to_fis(). Praveen reports that eSATA attached drives do not
discover correctly. His investigation found that the BIOS was passing
pmp=0 while Linux was passing pmp=1 and failing to discover the drives.
Update libsas to follow the libata example of pulling the pmp setting
from the ata_link and correct is_cmd to be 1 since all tf's submitted
through ->qc_issue are commands. Presumably libsas lldds do not care
about is_cmd as they have sideband mechanisms to perform link
management.
http://marc.info/?l=linux-scsi&m=138179681726990
[jejb: checkpatch fix]
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Reported-by: Praveen Murali <pmurali@logicube.com>
Tested-by: Praveen Murali <pmurali@logicube.com>
Cc: stable@vger.kernel.org
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Pull networking updates from David Miller:
"Here is a pile of bug fixes that accumulated while I was in Europe"
1) In fixing kernel leaks to userspace during copying of socket
addresses, we broke a case that used to work, namely the user
providing a buffer larger than the in-kernel generic socket address
structure. This broke Ruby amongst other things. Fix from Dan
Carpenter.
2) Fix regression added by byte queue limit support in 8139cp driver,
from Yang Yingliang.
3) The addition of MSG_SENDPAGE_NOTLAST buggered up a few sendpage
implementations, they should just treat it the same as MSG_MORE.
Fix from Richard Weinberger and Shawn Landden.
4) Handle icmpv4 errors received on ipv6 SIT tunnels correctly, from
Oussama Ghorbel. In particular we should send an ICMPv6 unreachable
in such situations.
5) Fix some regressions in the recent genetlink fixes, in particular
get the pmcraid driver to use the new safer interfaces correctly.
From Johannes Berg.
6) macvtap was converted to use a per-cpu set of statistics, but some
code was still bumping tx_dropped elsewhere. From Jason Wang.
7) Fix build failure of xen-netback due to missing include on some
architectures, from Andy Whitecroft.
8) macvtap double counts received packets in statistics, fix from Vlad
Yasevich.
9) Fix various cases of using *_STATS_BH() when *_STATS() is more
appropriate. From Eric Dumazet and Hannes Frederic Sowa.
10) Pktgen ipsec mode doesn't update the ipv4 header length and checksum
properly after encapsulation. Fix from Fan Du.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (61 commits)
net/mlx4_en: Remove selftest TX queues empty condition
{pktgen, xfrm} Update IPv4 header total len and checksum after tranformation
virtio_net: make all RX paths handle erors consistently
virtio_net: fix error handling for mergeable buffers
virtio_net: Fixed a trivial typo (fitler --> filter)
netem: fix gemodel loss generator
netem: fix loss 4 state model
netem: missing break in ge loss generator
net/hsr: Support iproute print_opt ('ip -details ...')
net/hsr: Very small fix of comment style.
MAINTAINERS: Added net/hsr/ maintainer
ipv6: fix possible seqlock deadlock in ip6_finish_output2
ixgbe: Make ixgbe_identify_qsfp_module_generic static
ixgbe: turn NETIF_F_HW_L2FW_DOFFLOAD off by default
ixgbe: ixgbe_fwd_ring_down needs to be static
e1000: fix possible reset_task running after adapter down
e1000: fix lockdep warning in e1000_reset_task
e1000: prevent oops when adapter is being closed and reset simultaneously
igb: Fixed Wake On LAN support
inet: fix possible seqlock deadlocks
...
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The pmcraid driver is abusing the genetlink API and is using its
family ID as the multicast group ID, which is invalid and may
belong to somebody else (and likely will.)
Make it use the correct API, but since this may already be used
as-is by userspace, reserve a family ID for this code and also
reserve that group ID to not break userspace assumptions.
My previous patch broke event delivery in the driver as I missed
that it wasn't using the right API and forgot to update it later
in my series.
While changing this, I noticed that the genetlink code could use
the static group ID instead of a strcmp(), so also do that for
the VFS_DQUOT family.
Cc: Anil Ravindranath <anil_ravindranath@pmc-sierra.com>
Cc: "James E.J. Bottomley" <JBottomley@parallels.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
Pull SCSI target updates from Nicholas Bellinger:
"Things have been quiet this round with mostly bugfixes, percpu
conversions, and other minor iscsi-target conformance testing changes.
The highlights include:
- Add demo_mode_discovery attribute for iscsi-target (Thomas)
- Convert tcm_fc(FCoE) to use percpu-ida pre-allocation
- Add send completion interrupt coalescing for ib_isert
- Convert target-core to use percpu-refcounting for se_lun
- Fix mutex_trylock usage bug in iscsit_increment_maxcmdsn
- tcm_loop updates (Hannes)
- target-core ALUA cleanups + prep for v3.14 SCSI Referrals support (Hannes)
v3.14 is currently shaping to be a busy development cycle in target
land, with initial support for T10 Referrals and T10 DIF currently on
the roadmap"
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (40 commits)
iscsi-target: chap auth shouldn't match username with trailing garbage
iscsi-target: fix extract_param to handle buffer length corner case
iscsi-target: Expose default_erl as TPG attribute
target_core_configfs: split up ALUA supported states
target_core_alua: Make supported states configurable
target_core_alua: Store supported ALUA states
target_core_alua: Rename ALUA_ACCESS_STATE_OPTIMIZED
target_core_alua: spellcheck
target core: rename (ex,im)plict -> (ex,im)plicit
percpu-refcount: Add percpu-refcount.o to obj-y
iscsi-target: Do not reject non-immediate CmdSNs exceeding MaxCmdSN
iscsi-target: Convert iscsi_session statistics to atomic_long_t
target: Convert se_device statistics to atomic_long_t
target: Fix delayed Task Aborted Status (TAS) handling bug
iscsi-target: Reject unsupported multi PDU text command sequence
ib_isert: Avoid duplicate iscsit_increment_maxcmdsn call
iscsi-target: Fix mutex_trylock usage in iscsit_increment_maxcmdsn
target: Core does not need blkdev.h
target: Pass through I/O topology for block backstores
iser-target: Avoid using FRMR for single dma entry requests
...
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Just a dereference, don't need a macro.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andy Grover <agrover@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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Remove a lingering macro that just hid a dereference.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andy Grover <agrover@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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It appears that driver runs into a problem here if fibsize is too small
because we allocate user_srbcmd with fibsize size only but later we
access it until user_srbcmd->sg.count to copy it over to srbcmd.
It is not correct to test (fibsize < sizeof(*user_srbcmd)) because this
structure already includes one sg element and this is not needed for
commands without data. So, we would recommend to add the following
(instead of test for fibsize == 0).
Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com>
Reported-by: Nico Golde <nico@ngolde.de>
Reported-by: Fabian Yamaguchi <fabs@goesec.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Pull networking fixes from David Miller:
"Mostly these are fixes for fallout due to merge window changes, as
well as cures for problems that have been with us for a much longer
period of time"
1) Johannes Berg noticed two major deficiencies in our genetlink
registration. Some genetlink protocols we passing in constant
counts for their ops array rather than something like
ARRAY_SIZE(ops) or similar. Also, some genetlink protocols were
using fixed IDs for their multicast groups.
We have to retain these fixed IDs to keep existing userland tools
working, but reserve them so that other multicast groups used by
other protocols can not possibly conflict.
In dealing with these two problems, we actually now use less state
management for genetlink operations and multicast groups.
2) When configuring interface hardware timestamping, fix several
drivers that simply do not validate that the hwtstamp_config value
is one the driver actually supports. From Ben Hutchings.
3) Invalid memory references in mwifiex driver, from Amitkumar Karwar.
4) In dev_forward_skb(), set the skb->protocol in the right order
relative to skb_scrub_packet(). From Alexei Starovoitov.
5) Bridge erroneously fails to use the proper wrapper functions to make
calls to netdev_ops->ndo_vlan_rx_{add,kill}_vid. Fix from Toshiaki
Makita.
6) When detaching a bridge port, make sure to flush all VLAN IDs to
prevent them from leaking, also from Toshiaki Makita.
7) Put in a compromise for TCP Small Queues so that deep queued devices
that delay TX reclaim non-trivially don't have such a performance
decrease. One particularly problematic area is 802.11 AMPDU in
wireless. From Eric Dumazet.
8) Fix crashes in tcp_fastopen_cache_get(), we can see NULL socket dsts
here. Fix from Eric Dumzaet, reported by Dave Jones.
9) Fix use after free in ipv6 SIT driver, from Willem de Bruijn.
10) When computing mergeable buffer sizes, virtio-net fails to take the
virtio-net header into account. From Michael Dalton.
11) Fix seqlock deadlock in ip4_datagram_connect() wrt. statistic
bumping, this one has been with us for a while. From Eric Dumazet.
12) Fix NULL deref in the new TIPC fragmentation handling, from Erik
Hugne.
13) 6lowpan bit used for traffic classification was wrong, from Jukka
Rissanen.
14) macvlan has the same issue as normal vlans did wrt. propagating LRO
disabling down to the real device, fix it the same way. From Michal
Kubecek.
15) CPSW driver needs to soft reset all slaves during suspend, from
Daniel Mack.
16) Fix small frame pacing in FQ packet scheduler, from Eric Dumazet.
17) The xen-netfront RX buffer refill timer isn't properly scheduled on
partial RX allocation success, from Ma JieYue.
18) When ipv6 ping protocol support was added, the AF_INET6 protocol
initialization cleanup path on failure was borked a little. Fix
from Vlad Yasevich.
19) If a socket disconnects during a read/recvmsg/recvfrom/etc that
blocks we can do the wrong thing with the msg_name we write back to
userspace. From Hannes Frederic Sowa. There is another fix in the
works from Hannes which will prevent future problems of this nature.
20) Fix route leak in VTI tunnel transmit, from Fan Du.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (106 commits)
genetlink: make multicast groups const, prevent abuse
genetlink: pass family to functions using groups
genetlink: add and use genl_set_err()
genetlink: remove family pointer from genl_multicast_group
genetlink: remove genl_unregister_mc_group()
hsr: don't call genl_unregister_mc_group()
quota/genetlink: use proper genetlink multicast APIs
drop_monitor/genetlink: use proper genetlink multicast APIs
genetlink: only pass array to genl_register_family_with_ops()
tcp: don't update snd_nxt, when a socket is switched from repair mode
atm: idt77252: fix dev refcnt leak
xfrm: Release dst if this dst is improper for vti tunnel
netlink: fix documentation typo in netlink_set_err()
be2net: Delete secondary unicast MAC addresses during be_close
be2net: Fix unconditional enabling of Rx interface options
net, virtio_net: replace the magic value
ping: prevent NULL pointer dereference on write to msg_name
bnx2x: Prevent "timeout waiting for state X"
bnx2x: prevent CFC attention
bnx2x: Prevent panic during DMAE timeout
...
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This doesn't really change anything, but prepares for the
next patch that will change the APIs to pass the group ID
within the family, rather than the global group ID.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
Pull infiniband/rdma updates from Roland Dreier:
- Re-enable flow steering verbs with new improved userspace ABI
- Fixes for slow connection due to GID lookup scalability
- IPoIB fixes
- Many fixes to HW drivers including mlx4, mlx5, ocrdma and qib
- Further improvements to SRP error handling
- Add new transport type for Cisco usNIC
* tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (66 commits)
IB/core: Re-enable create_flow/destroy_flow uverbs
IB/core: extended command: an improved infrastructure for uverbs commands
IB/core: Remove ib_uverbs_flow_spec structure from userspace
IB/core: Use a common header for uverbs flow_specs
IB/core: Make uverbs flow structure use names like verbs ones
IB/core: Rename 'flow' structs to match other uverbs structs
IB/core: clarify overflow/underflow checks on ib_create/destroy_flow
IB/ucma: Convert use of typedef ctl_table to struct ctl_table
IB/cm: Convert to using idr_alloc_cyclic()
IB/mlx5: Fix page shift in create CQ for userspace
IB/mlx4: Fix device max capabilities check
IB/mlx5: Fix list_del of empty list
IB/mlx5: Remove dead code
IB/core: Encorce MR access rights rules on kernel consumers
IB/mlx4: Fix endless loop in resize CQ
RDMA/cma: Remove unused argument and minor dead code
RDMA/ucma: Discard events for IDs not yet claimed by user space
IB/core: Add Cisco usNIC rdma node and transport types
RDMA/nes: Remove self-assignment from nes_query_qp()
IB/srp: Report receive errors correctly
...
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Add support for periodically reconnecting to an SRP target until
the dev_loss timer expires. After the tenth reconnection attempt,
gradually slow down subsequent reconnect attempts.
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: David Dillow <dillowda@ornl.gov>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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Add the necessary functions in the SRP transport module to allow an
SRP initiator driver to implement transport layer error handling
similar to the functionality already provided by the FC transport
layer. This includes:
- Support for implementing fast_io_fail_tmo, the time that should
elapse after having detected a transport layer problem and
before failing I/O.
- Support for implementing dev_loss_tmo, the time that should
elapse after having detected a transport layer problem and
before removing a remote port.
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: David Dillow <dillowda@ornl.gov>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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Keep the rport data structure around after srp_remove_host() has
finished until cleanup of the IB transport layer has finished
completely. This is necessary because later patches use the rport
pointer inside the queuecommand callback. Without this patch
accessing the rport from inside a queuecommand callback is racy
because srp_remove_host() must be invoked before scsi_remove_host()
and because the queuecommand callback could get invoked after
srp_remove_host() has finished. In other words, without this patch
the queuecommand callback can get invoked after the rport data
structure has been freed.
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: David Dillow <dillowda@ornl.gov>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
Pull trivial tree updates from Jiri Kosina:
"Usual earth-shaking, news-breaking, rocket science pile from
trivial.git"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (23 commits)
doc: usb: Fix typo in Documentation/usb/gadget_configs.txt
doc: add missing files to timers/00-INDEX
timekeeping: Fix some trivial typos in comments
mm: Fix some trivial typos in comments
irq: Fix some trivial typos in comments
NUMA: fix typos in Kconfig help text
mm: update 00-INDEX
doc: Documentation/DMA-attributes.txt fix typo
DRM: comment: `halve' -> `half'
Docs: Kconfig: `devlopers' -> `developers'
doc: typo on word accounting in kprobes.c in mutliple architectures
treewide: fix "usefull" typo
treewide: fix "distingush" typo
mm/Kconfig: Grammar s/an/a/
kexec: Typo s/the/then/
Documentation/kvm: Update cpuid documentation for steal time and pv eoi
treewide: Fix common typo in "identify"
__page_to_pfn: Fix typo in comment
Correct some typos for word frequency
clk: fixed-factor: Fix a trivial typo
...
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Correct common misspelling of "identify" as "indentify" throughout
the kernel
Signed-off-by: Maxime Jayat <maxime@artisandeveloppeur.fr>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Since commit 0998d0631001288a5974afc0b2a5f568bcdecb4d
(device-core: Ensure drvdata = NULL when no driver is bound),
the driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Cc: James Bottomley <JBottomley@parallels.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Correct spelling typo within various part of the kernel
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux
Pull virtio updates from Rusty Russell:
"Nothing really exciting: some groundwork for changing virtio endian,
and some robustness fixes for broken virtio devices, plus minor
tweaks"
* tag 'virtio-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux:
virtio_scsi: verify if queue is broken after virtqueue_get_buf()
x86, asmlinkage, lguest: Pass in globals into assembler statement
virtio: mmio: fix signature checking for BE guests
virtio_ring: adapt to notify() returning bool
virtio_net: verify if queue is broken after virtqueue_get_buf()
virtio_console: verify if queue is broken after virtqueue_get_buf()
virtio_blk: verify if queue is broken after virtqueue_get_buf()
virtio_ring: add new function virtqueue_is_broken()
virtio_test: verify if virtqueue_kick() succeeded
virtio_net: verify if virtqueue_kick() succeeded
virtio_ring: let virtqueue_{kick()/notify()} return a bool
virtio_ring: change host notification API
virtio_config: remove virtio_config_val
virtio: use size-based config accessors.
virtio_config: introduce size-based accessors.
virtio_ring: plug kmemleak false positive.
virtio: pm: use CONFIG_PM_SLEEP instead of CONFIG_PM
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If virtqueue_get_buf() returned with a NULL pointer avoid a possibly
endless loop by checking for a broken virtqueue.
Signed-off-by: Heinz Graalfs <graalfs@linux.vnet.ibm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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This lets the transport do endian conversion if necessary, and insulates
the drivers from the difference.
Most drivers can use the simple helpers virtio_cread() and virtio_cwrite().
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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The freeze and restore functions defined in virtio drivers are used
for suspend and hibernate, so CONFIG_PM_SLEEP is more appropriate than
CONFIG_PM. This patch replace all CONFIG_PM with CONFIG_PM_SLEEP for
virtio drivers that implement freeze and restore callbacks.
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Reviewed-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI changes from Bjorn Helgaas:
"Resource management
- Fix host bridge window coalescing (Alexey Neyman)
- Pass type, width, and prefetchability for window alignment (Wei Yang)
PCI device hotplug
- Convert acpiphp, acpiphp_ibm to dynamic debug (Lan Tianyu)
Power management
- Remove pci_pm_complete() (Liu Chuansheng)
MSI
- Fail initialization if device is not in PCI_D0 (Yijing Wang)
MPS (Max Payload Size)
- Use pcie_get_mps() and pcie_set_mps() to simplify code (Yijing Wang)
- Use pcie_set_readrq() to simplify code (Yijing Wang)
- Use cached pci_dev->pcie_mpss to simplify code (Yijing Wang)
SR-IOV
- Enable upstream bridges even for VFs on virtual buses (Bjorn Helgaas)
- Use pci_is_root_bus() to avoid catching virtual buses (Wei Yang)
Virtualization
- Add x86 MSI masking ops (Konrad Rzeszutek Wilk)
Freescale i.MX6
- Support i.MX6 PCIe controller (Sean Cross)
- Increase link startup timeout (Marek Vasut)
- Probe PCIe in fs_initcall() (Marek Vasut)
- Fix imprecise abort handler (Tim Harvey)
- Remove redundant of_match_ptr (Sachin Kamat)
Renesas R-Car
- Support Gen2 internal PCIe controller (Valentine Barshak)
Samsung Exynos
- Add MSI support (Jingoo Han)
- Turn off power when link fails (Jingoo Han)
- Add Jingoo Han as maintainer (Jingoo Han)
- Add clk_disable_unprepare() on error path (Wei Yongjun)
- Remove redundant of_match_ptr (Sachin Kamat)
Synopsys DesignWare
- Add irq_create_mapping() (Pratyush Anand)
- Add header guards (Seungwon Jeon)
Miscellaneous
- Enable native PCIe services by default on non-ACPI (Andrew Murray)
- Cleanup _OSC usage and messages (Bjorn Helgaas)
- Remove pcibios_last_bus boot option on non-x86 (Bjorn Helgaas)
- Convert bus code to use bus_, drv_, and dev_groups (Greg Kroah-Hartman)
- Remove unused pci_mem_start (Myron Stowe)
- Make sysfs functions static (Sachin Kamat)
- Warn on invalid return from driver probe (Stephen M. Cameron)
- Remove Intel Haswell D3 delays (Todd E Brandt)
- Call pci_set_master() in core if driver doesn't do it (Yinghai Lu)
- Use pci_is_pcie() to simplify code (Yijing Wang)
- Use PCIe capability accessors to simplify code (Yijing Wang)
- Use cached pci_dev->pcie_cap to simplify code (Yijing Wang)
- Removed unused "is_pcie" from struct pci_dev (Yijing Wang)
- Simplify sysfs CPU affinity implementation (Yijing Wang)"
* tag 'pci-v3.13-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (79 commits)
PCI: Enable upstream bridges even for VFs on virtual buses
PCI: Add pci_upstream_bridge()
PCI: Add x86_msi.msi_mask_irq() and msix_mask_irq()
PCI: Warn on driver probe return value greater than zero
PCI: Drop warning about drivers that don't use pci_set_master()
PCI: Workaround missing pci_set_master in pci drivers
powerpc/pci: Use pci_is_pcie() to simplify code [fix]
PCI: Update pcie_ports 'auto' behavior for non-ACPI platforms
PCI: imx6: Probe the PCIe in fs_initcall()
PCI: Add R-Car Gen2 internal PCI support
PCI: imx6: Remove redundant of_match_ptr
PCI: Report pci_pme_active() kmalloc failure
mn10300/PCI: Remove useless pcibios_last_bus
frv/PCI: Remove pcibios_last_bus
PCI: imx6: Increase link startup timeout
PCI: exynos: Remove redundant of_match_ptr
PCI: imx6: Fix imprecise abort handler
PCI: Fail MSI/MSI-X initialization if device is not in PCI_D0
PCI: imx6: Remove redundant dev_err() in imx6_pcie_probe()
x86/PCI: Coalesce multiple overlapping host bridge windows
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* pci/misc:
PCI: Remove unused PCI_MSIX_FLAGS_BIRMASK definition
PCI: acpiphp_ibm: Convert to dynamic debug
PCI: acpiphp: Convert to dynamic debug
PCI: Remove Intel Haswell D3 delays
PCI: Pass type, width, and prefetchability for window alignment
PCI: Document reason for using pci_is_root_bus()
PCI: Use pci_is_root_bus() to check for root bus
PCI: Remove unused "is_pcie" from pci_dev structure
PCI: Update pci_find_slot() description in pci.txt
[SCSI] qla2xxx: Use standard PCIe Capability Link register field names
PCI: Fix comment typo, remove unnecessary !! in pci_is_pcie()
PCI: Drop "setting latency timer" messages
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Use the standard #defines for PCIe Link Capability register fields
rather than bare numbers. This also uses the new PCI Express Capability
accessor rather than reading the capability directly.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Acked-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
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Use pci_is_pcie() instead of pci_find_capability() to simplify code.
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Chad Dupuis <chad.dupuis@qlogic.com>
Cc: Andrew Vasquez <andrew.vasquez@qlogic.com>
Cc: linux-driver@qlogic.com
Cc: "James E.J. Bottomley" <JBottomley@parallels.com>
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pci_is_pcie() and pcie_capability_clear_and_set_word() make it trivial
to set the PCIe Completion Timeout, so just fold the
csio_set_pcie_completion_timeout() function into its caller.
[bhelgaas: changelog, fold csio_set_pcie_completion_timeout() into caller]
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: Jiang Liu <jiang.liu@huawei.com>
Cc: "James E.J. Bottomley" <JBottomley@parallels.com>
Cc: Naresh Kumar Inna <naresh@chelsio.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jesper Juhl <jj@chaosbits.net>
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Use pcie_get_readrq()/pcie_set_readrq() to simplify code.
Jon Mason proposed a similar patch a couple years ago (see below).
[bhelgaas: validate pcie_max_read_reqsz, add pointer to Jon's patch]
Reference: http://lkml.kernel.org/r/1309191190-14670-1-git-send-email-jdmason@kudzu.us
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: Jiang Liu <jiang.liu@huawei.com>
Cc: Anil Gurumurthy <agurumur@brocade.com>
Cc: Vijaya Mohan Guvva <vmohan@brocade.com>
Cc: "James E.J. Bottomley" <JBottomley@parallels.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull first round of SCSI updates from James Bottomley:
"This patch set is driver updates for qla4xxx, scsi_debug, pm80xx,
fcoe/libfc, eas2r, lpfc, be2iscsi and megaraid_sas plus some assorted
bug fixes and cleanups"
* tag 'scsi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (106 commits)
[SCSI] scsi_error: Escalate to LUN reset if abort fails
[SCSI] Add 'eh_deadline' to limit SCSI EH runtime
[SCSI] remove check for 'resetting'
[SCSI] dc395: Move 'last_reset' into internal host structure
[SCSI] tmscsim: Move 'last_reset' into host structure
[SCSI] advansys: Remove 'last_reset' references
[SCSI] dpt_i2o: return SCSI_MLQUEUE_HOST_BUSY when in reset
[SCSI] dpt_i2o: Remove DPTI_STATE_IOCTL
[SCSI] megaraid_sas: Fix synchronization problem between sysPD IO path and AEN path
[SCSI] lpfc: Fix typo on NULL assignment
[SCSI] scsi_dh_alua: ALUA handler attach should succeed while TPG is transitioning
[SCSI] scsi_dh_alua: ALUA check sense should retry device internal reset unit attention
[SCSI] esas2r: Cleanup snprinf formatting of firmware version
[SCSI] esas2r: Remove superfluous mask of pcie_cap_reg
[SCSI] esas2r: Fixes for big-endian platforms
[SCSI] esas2r: Directly call kernel functions for atomic bit operations
[SCSI] lpfc 8.3.43: Update lpfc version to driver version 8.3.43
[SCSI] lpfc 8.3.43: Fixed not processing task management IOCB response status
[SCSI] lpfc 8.3.43: Fixed spinlock hang.
[SCSI] lpfc 8.3.43: Fixed invalid Total_Data_Placed value received for els and ct command responses
...
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Pull Request for 3.13 for FCOE tree.
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Preliminary to removing compare_ether_addr altogether:
Use the new bool function ether_addr_equal to add
some clarity and reduce the likelihood for misuse
of compare_ether_addr for sorting.
Done via cocci script:
$ cat compare_ether_addr.cocci
@@
expression a,b;
@@
- !compare_ether_addr(a, b)
+ ether_addr_equal(a, b)
@@
expression a,b;
@@
- compare_ether_addr(a, b)
+ !ether_addr_equal(a, b)
@@
expression a,b;
@@
- !ether_addr_equal(a, b) == 0
+ ether_addr_equal(a, b)
@@
expression a,b;
@@
- !ether_addr_equal(a, b) != 0
+ !ether_addr_equal(a, b)
@@
expression a,b;
@@
- ether_addr_equal(a, b) == 0
+ !ether_addr_equal(a, b)
@@
expression a,b;
@@
- ether_addr_equal(a, b) != 0
+ ether_addr_equal(a, b)
@@
expression a,b;
@@
- !!ether_addr_equal(a, b)
+ ether_addr_equal(a, b)
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
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In this pending patch:
http://patchwork.open-fcoe.org/patch/104/
Tomas Henzl noted that the error path when fcoe_fcf_device_add fails, was
missing a mutex_unlock call.
Not sure what staet the integration of the above patch is in, but if you could
either merge this with it, or apply it on top of what you already have, that
would be great. Thanks!
Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
CC: thenzl@redhat.com
Reported-by: thenzl@redhat.com
Signed-off-by: Robert Love <robert.w.love@intel.com>
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fnic doesn't use any of the create/destroy/enable/disable interfaces
either from the (legacy) module paramaters or the (new) fcoe_sysfs
interfaces. When fcoe_sysfs was introduced fnic wasn't changed since
it wasn't using the interfaces. libfcoe incorrectly assumed that that
all of its users were using fcoe_sysfs and when adding and deleting
FCFs would assume the existance of a fcoe_ctlr_device. fnic was not
allocating this structure because it doesn't care about the standard
user interfaces (fnic starts on link only). If/When libfcoe tried to use
the fcoe_ctlr_device's lock for the first time a NULL pointer exception
would be triggered.
Since fnic doesn't care about sysfs or user interfaces, the solution
is to drop libfcoe's assumption that all drivers are using fcoe_sysfs.
This patch accomplishes this by changing some of the structure
relationships.
We need a way to determine when a LLD is using fcoe_sysfs or not and
we can do that by checking for the existance of the fcoe_ctlr_device.
Prior to this patch, it was assumed that the fcoe_ctlr structure was
allocated with the fcoe_ctlr_device and immediately followed it in
memory. To reach the fcoe_ctlr_device we would simply go back in memory
from the fcoe_ctlr to get the fcoe_ctlr_device.
Since fnic doesn't allocate the fcoe_ctlr_device, we cannot keep that
assumption. This patch adds a pointer from the fcoe_ctlr to the
fcoe_ctlr_device. For bnx2fc and fcoe we will continue to allocate the
two structures together, but then we'll set the ctlr->cdev pointer
to point at the fcoe_ctlr_device. fnic will not change and will continue
to allocate the fcoe_ctlr itself, and ctlr->cdev will remain NULL.
When libfcoe adds fcoe_fcf's to the fcoe_ctlr it will check if ctlr->cdev
is set and only if so will it continue to interact with fcoe_sysfs.
Signed-off-by: Robert Love <robert.w.love@intel.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Tested-by: Hiral Patel <hiralpat@cisco.com>
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This patch fixes the following compiler warning:
drivers/scsi/fcoe/fcoe_ctlr.c: In function fcoe_sysfs_fcf_add:
drivers/scsi/fcoe/fcoe_ctlr.c:211:1: warning: the frame size of 1480 bytes is larger than 1024 bytes [-Wframe-larger-than=]
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Cc: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
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FCoE debug statements must end in a newline. Add one where it is missing.
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Cc: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
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The function fcoe_ctlr_mode_set() is local, hence declare it static.
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Cc: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
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This patch avoids that the FCoE initiator sends a REC message after
having received a SCSI response with non-zero status and non-zero
DATA IN buffer length.
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Cc: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
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While the FCoE initiator driver invokes fc_exch_done() from inside
the libfc response handler, FCoE target drivers typically invoke
fc_exch_done() from outside the libfc response handler. The object
fc_exch.arg points at may disappear as soon as fc_exch_done() has
finished. So it's important not to invoke the response handler
function after fc_exch_done() has finished. Modify libfc such that
this guarantee is provided if fc_exch_done() is invoked from
outside a response handler. This patch fixes a sporadic crash in
FCoE target implementations after a command has been aborted.
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Cc: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
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Reduce the time during which the exchange lock is held by allocating
a frame before obtaining the exchange lock.
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Cc: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
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Calling fc_seq_send() after an ABTS message has been received triggers
a kernel warning (WARN_ON(!(ep->esb_stat & ESB_ST_SEQ_INIT))). Avoid
this by returning -ENXIO to the caller if fc_seq_send() is invoked after
an ABTS message has been received.
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Cc: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
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This patch avoids that the WARN_ON(!(ep->esb_stat & ESB_ST_SEQ_INIT))
statement in fc_seq_send_locked() gets triggered sporadically when
running FCoE target code due to concurrent ep->esb_stat modifications.
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Cc: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
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It is allowed to pass a zero timeout value to fc_seq_exch_abort().
Avoid that this can cause the timeout function to drop the exchange
reference before it has been increased by fc_exch_timer_set_locked().
This patch fixes a crash when running FCoE target code with poisoning
enabled in the memory allocator.
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Cc: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
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