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git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
RDMA/nes: Fix test of uninitialized netdev
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Commit 1765a575334f ("net: make dev->master general") introduced a
test of an uninitialized netdev. Fix the code so the intended netdev
is tested.
Signed-off-by: Roland Dreier <roland@purestorage.com>
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* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (56 commits)
route: Take the right src and dst addresses in ip_route_newports
ipv4: Fix nexthop caching wrt. scoping.
ipv4: Invalidate nexthop cache nh_saddr more correctly.
net: fix pch_gbe section mismatch warning
ipv4: fix fib metrics
mlx4_en: Removing HW info from ethtool -i report.
net_sched: fix THROTTLED/RUNNING race
drivers/net/a2065.c: Convert release_resource to release_region/release_mem_region
drivers/net/ariadne.c: Convert release_resource to release_region/release_mem_region
bonding: fix rx_handler locking
myri10ge: fix rmmod crash
mlx4_en: updated driver version to 1.5.4.1
mlx4_en: Using blue flame support
mlx4_core: reserve UARs for userspace consumers
mlx4_core: maintain available field in bitmap allocator
mlx4: Add blue flame support for kernel consumers
mlx4_en: Enabling new steering
mlx4: Add support for promiscuous mode in the new steering model.
mlx4: generalization of multicast steering.
mlx4_en: Reporting HW revision in ethtool -i
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The same packet steering mechanism would be used both for IB and Ethernet,
Both multicasts and unicasts.
This commit prepares the general infrastructure for this.
Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
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HW revision is derived from device ID and rev id.
Signed-off-by: Eugenia Emantayev <eugenia@mellanox.co.il>
Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
IB: Increase DMA max_segment_size on Mellanox hardware
IB/mad: Improve an error message so error code is included
RDMA/nes: Don't print success message at level KERN_ERR
RDMA/addr: Fix return of uninitialized ret value
IB/srp: try to use larger FMR sizes to cover our mappings
IB/srp: add support for indirect tables that don't fit in SRP_CMD
IB/srp: rework mapping engine to use multiple FMR entries
IB/srp: allow sg_tablesize to be set for each target
IB/srp: move IB CM setup completion into its own function
IB/srp: always avoid non-zero offsets into an FMR
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There's no reason to print "NetEffect RNIC driver successfully loaded"
at level KERN_ERR (where it will uglify the console on a quiet boot).
Change it to KERN_INFO.
Signed-off-by: Roland Dreier <roland@purestorage.com>
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By default, each device is assumed to be able only handle 64 KB chunks
during DMA. By giving the segment size a larger value, the block layer
will coalesce more S/G entries together for SRP, allowing larger
requests with the same sg_tablesize setting. The block layer is the
only direct user of it, though a few IOMMU drivers reference it as
well for their *_map_sg coalescing code. pci-gart_64 on x86, and a
smattering on on sparc, powerpc, and ia64.
Since other IB protocols could potentially see larger segments with
this, let's check those:
- iSER is fine, because you limit your maximum request size to 512
KB, so we'll never overrun the page vector in struct iser_page_vec
(128 entries currently). It is independent of the DMA segment size,
and handles multi-page segments already.
- IPoIB is fine, as it maps each page individually, and doesn't use
ib_dma_map_sg().
- RDS appears to do the right thing and has no dependencies on DMA
segment size, but I don't claim to have done a complete audit.
- NFSoRDMA and 9p are OK -- they do not use ib_dma_map_sg(), so they
doesn't care about the coalescing.
- Lustre's ko2iblnd does not care about coalescing -- it properly
walks the returned sg list.
This patch ups the value on Mellanox hardware to 1 GB, which matches
reported firmware limits on mlx4.
Signed-off-by: David Dillow <dillowda@ornl.gov>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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In most cases, get_user_pages and get_user_pages_fast should be used
to pin user pages in memory. But sometimes, some special flags except
FOLL_GET, FOLL_WRITE and FOLL_FORCE are needed, for example in
following patch, KVM needs FOLL_HWPOISON. To support these users,
__get_user_pages is exported directly.
There are some symbol name conflicts in infiniband driver, fixed them too.
Signed-off-by: Huang Ying <ying.huang@intel.com>
CC: Andrew Morton <akpm@linux-foundation.org>
CC: Michel Lespinasse <walken@google.com>
CC: Roland Dreier <roland@kernel.org>
CC: Ralph Campbell <infinipath@qlogic.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
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* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1480 commits)
bonding: enable netpoll without checking link status
xfrm: Refcount destination entry on xfrm_lookup
net: introduce rx_handler results and logic around that
bonding: get rid of IFF_SLAVE_INACTIVE netdev->priv_flag
bonding: wrap slave state work
net: get rid of multiple bond-related netdevice->priv_flags
bonding: register slave pointer for rx_handler
be2net: Bump up the version number
be2net: Copyright notice change. Update to Emulex instead of ServerEngines
e1000e: fix kconfig for crc32 dependency
netfilter ebtables: fix xt_AUDIT to work with ebtables
xen network backend driver
bonding: Improve syslog message at device creation time
bonding: Call netif_carrier_off after register_netdevice
bonding: Incorrect TX queue offset
net_sched: fix ip_tos2prio
xfrm: fix __xfrm_route_forward()
be2net: Fix UDP packet detected status in RX compl
Phonet: fix aligned-mode pipe socket buffer header reserve
netxen: support for GbE port settings
...
Fix up conflicts in drivers/staging/brcm80211/brcmsmac/wl_mac80211.c
with the staging updates.
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The idea here is this minimizes the number of places one has to edit
in order to make changes to how flows are defined and used.
Signed-off-by: David S. Miller <davem@davemloft.net>
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Instead of on the stack.
Signed-off-by: David S. Miller <davem@davemloft.net>
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This boolean state is now available in the flow flags.
Signed-off-by: David S. Miller <davem@davemloft.net>
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Since that is what the current vague "flags" argument means.
Signed-off-by: David S. Miller <davem@davemloft.net>
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master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
Documentation/feature-removal-schedule.txt
drivers/net/e1000e/netdev.c
net/xfrm/xfrm_policy.c
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dev->master is now tightly connected to bonding driver. This patch makes
this pointer more general and ready to be used by others.
- netdev_set_master() - bond specifics moved to new function
netdev_set_bond_master()
- introduced netif_is_bond_slave() to check if device is a bonding slave
Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Set the M_Key field in SubnGet and SugnGetResp MADs based on correctly
interpreting the protection level specified in the M_KeyProtBits field.
Signed-off-by: Mitko Haralanov <mitko@qlogic.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@qlogic.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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For active and far-EQ cables use an LE2 value of 0 for improved SI.
Signed-off-by: Mitko Haralanov <mitko@qlogic.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@qlogic.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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Fix a bug which causes the driver to return incorrect MADs as a
response to Set(PortInfo) which sets the link width to 0xFF or link
speed to 0xF.
Signed-off-by: Mitko Haralanov <mitko@qlogic.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@qlogic.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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The comment some lines above states that disabled devices must not reset.
Signed-off-by: Nicolas Kaiser <nikai@nikai.net>
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- Show whether the SQ is in onchip memory or not.
- Dump both SQ and RQ QIDs.
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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This at least kicks the user mode applications that are watching for
device events.
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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Set the ULP mode for initial RDMA connection setup to the proper DDP
mode. This avoids wasting some HW resources while in streaming mode.
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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This avoids the CIDX_INC overflow issue with T4A2 when running
kernel RDMA applications.
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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Unloading iw_cxgb4 can crash due to the unload code trying to use
db_drop_task, which is uninitialized. So remove this dead code.
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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Set the default to on.
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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There is a double completion associated with error handling for RC QPs.
The sequence is:
- The do_rc_ack() routine fields an RNR nack and there are 0
rnr_retries configured on the QP.
- qib_error_qp() stops the pending timer
- qib_rc_send_complete() is called from sdma_complete()
- qib_rc_send_complete() starts the timer because the msb of the psn
just completed says an ack is needed.
- a bunch of flushes occur as ipoib posts WQEs to an error'ed QP
- rc_timeout() calls qib_restart_rc()
- qib_restart_rc() calls qib_send_complete() with a
IB_WC_RETRY_EXC_ERR on a wqe that has already been completed in the
past
The fix avoids starting the timer since another packet will never
arrive.
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@qlogic.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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The following panic BUG_ON occurs during qib testing:
Kernel BUG at include/linux/timer.h:82
RIP [<ffffffff881f7109>] :ib_qib:start_timer+0x73/0x89
RSP <ffffffff80425bd0>
<0>Kernel panic - not syncing: Fatal exception
<0>Dumping qib trace buffer from panic
qib_set_lid INFO: IB0:1 got a lid: 0xf8
Done dumping qib trace buffer
BUG: warning at kernel/panic.c:137/panic() (Tainted: G
The flaw is due to a missing state test when processing responses that
results in an add_timer() call when the same timer is already queued.
This code was executing in parallel with a QP destroy on another CPU
that had changed the state to reset, but the missing test caused to
response handling code to run on into the panic.
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@qlogic.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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nes_port_ibevent() should not be called when the nes RDMA device is not
registered with the RDMA core. Add missing checks of of_device_registered flag.
Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
RDMA: Update missed conversion of flush_scheduled_work()
RDMA/ucma: Copy iWARP route information on queries
RDMA/amso1100: Fix compile warnings
RDMA/cxgb4: Set the correct device physical function for iWARP connections
RDMA/cxgb4: Limit MAXBURST EQ context field to 256B
IB/qib: Hold link for TX SERDES settings
mlx4_core: Add ConnectX-3 device IDs
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for-next
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Hold the IB link at DISABLED until we get the correct TX settings
on mezz boards.
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@qlogic.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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The PF passed to FW was 0, causing PCI failures in an SR-IOV environment.
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Cc: <stable@kernel.org>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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MAXBURST cannot exceed 256B for on-chip queues. With a 512B MAXBURST,
we can lock up the chip.
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Cc: <stable@kernel.org>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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Fix compile warnings on 32-bit by using "0" instead of "(u64) NULL" to
assign to "c2_vq_req->reply_msg".
Signed-off-by: Ralf Thielow <ralf.thielow@googlemail.com>
[ Change from "(unsigned long) NULL" to plain old "0" as suggested by
Bart Van Assche <bvanassche@acm.org>. - Roland ]
Signed-off-by: Roland Dreier <roland@purestorage.com>
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The meaning of CONFIG_EMBEDDED has long since been obsoleted; the option
is used to configure any non-standard kernel with a much larger scope than
only small devices.
This patch renames the option to CONFIG_EXPERT in init/Kconfig and fixes
references to the option throughout the kernel. A new CONFIG_EMBEDDED
option is added that automatically selects CONFIG_EXPERT when enabled and
can be used in the future to isolate options that should only be
considered for embedded systems (RISC architectures, SLOB, etc).
Calling the option "EXPERT" more accurately represents its intention: only
expert users who understand the impact of the configuration changes they
are making should enable it.
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Acked-by: David Woodhouse <david.woodhouse@intel.com>
Signed-off-by: David Rientjes <rientjes@google.com>
Cc: Greg KH <gregkh@suse.de>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Robin Holt <holt@sgi.com>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
RDMA: Update workqueue usage
RDMA/nes: Fix incorrect SFP+ link status detection on driver init
RDMA/nes: Fix SFP+ link down detection issue with switch port disable
RDMA/nes: Generate IB_EVENT_PORT_ERR/PORT_ACTIVE events
RDMA/nes: Fix bonding on iw_nes
IB/srp: Test only once whether iu allocation succeeded
IB/mlx4: Handle protocol field in multicast table
RDMA: Use vzalloc() to replace vmalloc()+memset(0)
mlx4_{core, ib, en}: Fix driver when sizeof (phys_addr_t) > sizeof (long)
IB/mthca: Fix driver when sizeof (phys_addr_t) > sizeof (long)
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During iw_nes initialization the link status for SFP+ PHY is always
detected as "up" regardless of real state (cable either connected or
disconnected). Add SFP+ PHY specific link status detection to the
iw_nes initialization procedure. Use link status recheck for
netdev_open to detect delayed state updates.
Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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In case of SFP+ PHY, link status check at interrupt processing can
give false results. For proper link status change detection a delayed
recheck is needed to give nes registers time to settle. Add a
periodic link status recheck scheduled at interrupt to detect
potential delayed registers state changes.
Addresses: http://bugs.openfabrics.org/bugzilla/show_bug.cgi?id=2117
Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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Depending on link state change, IB_EVENT_PORT_ERR or
IB_EVENT_PORT_ACTIVE should be generated when handling MAC interrupts.
Plugging in a cable happens to result in series of interrupts changing
driver's link state a number of times before finally staying at link
up (e.g. link up, link down, link up, link down, ..., link up). To
prevent sending series of redundant IB_EVENT_PORT_ACTIVE and
IB_EVENT_PORT_ERR events, we use a timer to debounce them in
nes_port_ibevent().
Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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Enable configuring bonds on nes devices by adding missing support for
master net_device to the driver.
Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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Some systems have PCI addresses that don't fit in unsigned long (eg some
32-bit PowerPC 440 systems have 36-bit bus addresses). Fix up the driver
by using phys_addr_t where appropriate, so we don't truncate any PCI
resource addresses before ioremapping them.
Signed-off-by: John L. Burr <jlburr@cadence.com>
[ Update to apply to current driver source. - Roland ]
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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The newest device firmware stores IB vs. Ethernet protocol in two bits
in members_count field of multicast group table (0: Infiniband, 1:
Ethernet). When changing the QP members count for a multicast group,
it important not to reset this information. When calling multicast
attach first time, the protocol type should be specified. In this
patch we always set it IB, but in the future we will handle Ethernet
too. When looking for a QP, the protocol type shoud be checked too.
Signed-off-by: Aleksey Senin <alekseys@voltaire.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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Some systems have PCI addresses that don't fit in unsigned long (eg some
32-bit PowerPC 440 systems have 36-bit bus addresses). Fix up mlx4 drivers
by using phys_addr_t where appropriate, so we don't truncate any PCI
resource addresses before ioremapping them.
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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* ib_wq is added, which is used as the common workqueue for infiniband
instead of the system workqueue. All system workqueue usages
including flush_scheduled_work() callers are converted to use and
flush ib_wq.
* cancel_delayed_work() + flush_scheduled_work() converted to
cancel_delayed_work_sync().
* qib_wq is removed and ib_wq is used instead.
This is to prepare for deprecation of flush_scheduled_work().
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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