This patch fixes checkpatch warnings about blank lines after an open brace '{'.
Signed-off-by: Kalesh AP <kalesh.purayil@emulex.com>
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch inserts a blank line after function/struct/union/enum definitions
as per checkpatch warnings.
Signed-off-by: Kalesh AP <kalesh.purayil@emulex.com>
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch removes multiple blank lines in the driver as per checkpatch
warnings.
Signed-off-by: Kalesh AP <kalesh.purayil@emulex.com>
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch fixes checkpatch warnings in be2net by adding a blank line
between declaration and code blocks.
Signed-off-by: Kalesh AP <kalesh.purayil@emulex.com>
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Kalesh AP <kalesh.purayil@emulex.com>
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch adds speed reporting via ethtool for 20G KR2 interface on the
Skyhawk-R chip.
Signed-off-by: Vasundhara Volam <vasundhara.volam@emulex.com>
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch adds speed reporting via ethtool for 40Gbps KR4 interface
on the Skyhawk-R chip.
Signed-off-by: Kalesh AP <kalesh.purayil@emulex.com>
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch fixes a sprase warnings regarding endian declarations introduced
by the following commit:
fixes: e36edd9 ("be2net: add ethtool "-m" option support")
Signed-off-by: Suresh Reddy <Suresh.Reddy@emulex.com>
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch fixes a sparse warning about missing static declaration that was
introduced by the following commit:
fixes: 936767039c ("be2net: send a max of 8 EQs to be_cmd_modify_eqd() on Lancer")
Signed-off-by: Kalesh AP <kalesh.purayil@emulex.com>
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM fixes from Paolo Bonzini:
"Two very simple bugfixes, affecting all supported architectures"
[ Two? There's three commits in here. Oh well, I guess Paolo didn't
count the preparatory symbol export ]
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: correct null pid check in kvm_vcpu_yield_to()
KVM: check for !is_zero_pfn() in kvm_is_mmio_pfn()
mm: export symbol dependencies of is_zero_pfn()
Commit ce93718fb7 ("net: Don't keep
around original SKB when we software segment GSO frames") frees the
original skb after software GSO even for dodgy gso skbs. This breaks
the stream throughput from untrusted sources, since only header
checking was done during software GSO instead of a true
segmentation. This patch fixes this by freeing the original gso skb
only when it was really segmented by software.
Fixes ce93718fb7 ("net: Don't keep
around original SKB when we software segment GSO frames.")
Cc: David S. Miller <davem@davemloft.net>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
If the hw is in ALDPS mode, the hw may have no response for accessing
the most registers. Therefore, the ALDPS should be disabled before
accessing the hw in rtl_ops.init(), rtl_ops.disable(), rtl_ops.up(),
and rtl_ops.down(). Regardless of rtl_ops.enable(), because the hw
wouldn't enter ALDPS mode when linking on. The hw would enter the
ALDPS mode after several seconds when link down occurs and the ALDPS
is enabled.
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
There have extra identation before .skb_copy_to_linear_data_offset(),
this patch just remove the identation.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Fugang Duan <B38611@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Florian Fainelli says:
====================
dsa: Broadcom SF2 suspend/resume and WoL
This patch add supports for suspend/resume and configuring Wake-on-LAN
for Broadcom Starfighter 2 switches.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
In order for Wake-on-LAN to work properly, we query the parent network
device Wake-on-LAN features and advertise those. Similarly, when
configuring Wake-on-LAN on a per-port network interface, we make sure
that we do not accept something the master network devices does not
support.
Finally, we need to maintain a bitmask of the ports enabled for
Wake-on-LAN to prevent the suspend() callback from disabling a port that
is used for waking up the system.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Allow switch drivers to implement per-port Wake-on-LAN getter and
setters.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Implement the suspend/resume callbacks for the Broadcom Starfighter 2
switch driver. Suspending the switch requires masking interrupts and
shutting down ports. Resuming the switch requires a software reset since
we do not know which power-sate we might be coming from, and re-enabling
the physical ports that are used.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add an abstraction layer to suspend/resume switch devices, doing the
following split:
- suspend/resume the slave network devices and their corresponding PHY
devices
- suspend/resume the switch hardware using switch driver callbacks
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Harish Patil says:
====================
qlge: Fix compilation warning and update maintainers
This patch series includes the following set of patches:
- Fix the below warning message:
qlge_main.c:1754: warning: 'lbq_desc' may be used uninitialized in this function
I have made changes according to your earlier feedback:
"Please fix this differently. The problem is that the compiler can't see that
you've done the !length check at the top of the function, so when it later
sees the while (length > 0) loop, it doesn't know that this loop will always
execute at least once. Just change that loop to a do { } while() loop and
the compiler will be able to see everything."
- Update qlge driver maintainers list
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix the below warning message:
qlge_main.c:1754: warning: 'lbq_desc' may be used uninitialized in this function
Signed-off-by: Harish Patil <harish.patil@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Resolves compile warning about use of a deprecated function call:
drivers/net/ethernet/amd/nmclan_cs.c: In function ‘nmclan_config’:
drivers/net/ethernet/amd/nmclan_cs.c:624:3: warning: ‘pcmcia_request_exclusive_irq’ is deprecated (declared at include/pcmcia/ds.h:213) [-Wdeprecated-declarations]
ret = pcmcia_request_exclusive_irq(link, mace_interrupt);
Updates pcmcia_request_exclusive_irq() to pcmcia_request_irq().
CC: Roger Pao <rpao@paonet.org>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
We cannot make struct qdisc_skb_cb bigger without impacting IPoIB,
or increasing skb->cb[] size.
Commit e0f31d8498 ("flow_keys: Record IP layer protocol in
skb_flow_dissect()") broke IPoIB.
Only current offender is sch_choke, and this one do not need an
absolutely precise flow key.
If we store 17 bytes of flow key, its more than enough. (Its the actual
size of flow_keys if it was a packed structure, but we might add new
fields at the end of it later)
Signed-off-by: Eric Dumazet <edumazet@google.com>
Fixes: e0f31d8498 ("flow_keys: Record IP layer protocol in skb_flow_dissect()")
Signed-off-by: David S. Miller <davem@davemloft.net>
TG3 appears to have an issue performing TSO and checksum offloading
correclty when the frame has been vlan encapsulated (non-accelrated).
In these cases, tcp checksum is not correctly updated.
This patch attempts to work around this issue. After the patch,
802.1ad vlans start working correctly over tg3 devices.
CC: Prashant Sreedharan <prashant@broadcom.com>
CC: Michael Chan <mchan@broadcom.com>
Signed-off-by: Vladislav Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
tmp103 temperature sensor driver registers with the hwmon framework by calling
hwmon_device_register_with_groups but does not have a .remove method to call
hwmon_device_unregister to unregister from the framework when the device is no
longer needed. Fix this by calling devm_hwmon_device_register_with_groups.
Signed-off-by: Sundar J Dev <sundarjayakumardev@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Since commit 412ca1550c ("macvlan: Move broadcasts into a work queue"), the
driver uses tx_queue_len of the master device as the limit of packets enqueuing.
Problem is that virtual drivers have this value set to 0, thus all broadcast
packets were rejected.
Because tx_queue_len was arbitrarily chosen, I replace it with a static limit
of 1000 (also arbitrarily chosen).
CC: Herbert Xu <herbert@gondor.apana.org.au>
Reported-by: Thibaut Collet <thibaut.collet@6wind.com>
Suggested-by: Thibaut Collet <thibaut.collet@6wind.com>
Tested-by: Thibaut Collet <thibaut.collet@6wind.com>
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
When requests are retried due to hw or sw resource shortages,
we often stop the associated hardware queue. So ensure that we
restart the queues when running the requeue work, otherwise the
queue run will be a no-op.
Signed-off-by: Jens Axboe <axboe@fb.com>
__blk_mq_alloc_rq_maps() can be invoked multiple times, if we scale
back the queue depth if we are low on memory. So don't clear
set->tags when we fail, this is handled directly in
the parent function, blk_mq_alloc_tag_set().
Reported-by: Robert Elliott <Elliott@hp.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
We should not insert requests into the flush state machine from
blk_mq_insert_request. All incoming flush requests come through
blk_{m,s}q_make_request and are handled there, while blk_execute_rq_nowait
should only be called for BLOCK_PC requests. All other callers
deal with requests that already went through the flush statemchine
and shouldn't be reinserted into it.
Reported-by: Robert Elliott <Elliott@hp.com>
Debugged-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
This patch should fix the bug reported in
https://lkml.org/lkml/2014/9/11/249.
We have to initialize at least the atomic_flags and the cmd_flags when
allocating storage for the requests.
Otherwise blk_mq_timeout_check() might dereference uninitialized
pointers when racing with the creation of a request.
Also move the reset of cmd_flags for the initializing code to the point
where a request is freed. So we will never end up with pending flush
request indicators that might trigger dereferences of invalid pointers
in blk_mq_timeout_check().
Cc: stable@vger.kernel.org
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Reported-by: Paulo De Rezende Pinatti <ppinatti@linux.vnet.ibm.com>
Tested-by: Paulo De Rezende Pinatti <ppinatti@linux.vnet.ibm.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
When we start the request, we set the deadline and flip the bits
marking the request as started and non-complete. However, it's
important that the deadline store is ordered before flipping the
bits, otherwise we could have a small window where the request is
marked started but with an invalid deadline. This can confuse the
timeout handling.
Suggested-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Fixes the following randconfig build failure:
> drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c: In function
> ‘pch_ptp_match’:
> drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c:130:2: error:
> implicit declaration of function ‘ptp_classify_raw’
> [-Werror=implicit-function-declaration]
> if (ptp_classify_raw(skb) == PTP_CLASS_NONE)
> ^
> cc1: some warnings being treated as errors
> make[5]: *** [drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.o] Error 1
Reported-by: Jim Davis <jim.epost@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
LIBFC depends upon SCSI_FC_ATTRS and select's CRC32C.
The only alternative would be to 'select' CRC32C and all of
SCSI_FC_ATTRS direct and indirect dependencies in the Kconfig section
for every LIBFCOE user which makes little sense.
Subsequently, use 'depends' instead of 'select' for LIBFCOE too.
Signed-off-by: David S. Miller <davem@davemloft.net>
We had several problems here. First, a race condition on QP1 mac
handling between mlx4_ib_update_qps and mlx4_ib_modify_qp, which is
fixed by taking the qp mutex in mlx4_ib_update_qps.
Also, qp->pri.smac_port was not updated in mlx4_ib_update_qps.
Last, in __mlx4_ib_modify_qp we did not properly handle the case where
the mac is zero, but port is non-zero.
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Automatic Path Migration is not supported under RoCE. Therefore,
return a "not-supported" error if the caller attempts to set an
alternate path in a QP context.
In addition, if there are no IB ports configured, do not report
APM capability in the device flags returned by mlx4_ib_query_device.
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
For native functions (non-SR-IOV), there's no reason to update
the smac_index, as QP1 is a GSI QP.
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
The source MAC is needed in RoCE when building the QP1 header.
Currently, this is obtained from the source net device. However, the net
device may not yet exist, or can be destroyed in parallel to this QP1 send
operation (e.g through the VPI port change flow) so accessing it may cause
a kernel crash.
To fix this, we maintain a source MAC cache per port for the net device in
struct mlx4_ib_roce. This cached MAC is initialized to be the default MAC
address obtained during HCA initialization via QUERY_PORT. This cached MAC
is updated via the netdev event notifier handler.
Since the cached MAC is held in an atomic64 object, we do not need locking
when accessing it.
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
There is a chance that the VF mlx4 RoCE driver (mlx4_ib) may see a 0-mac
as the current default MAC address when a RoCE interface first comes up.
In this case, the RoCE driver registers the 0-mac to get its MAC index --
used in the INIT2RTR transition when it creates its proxy Q1 qp's.
If we do not allow QP1 to be created, the RoCE driver will not come up.
If we do not register the 0-mac, but simply use a random mac-index,
QP1 will attempt to send packets with an someone's else source MAC which
will get the system into more troubled.
Since a 0-mac was previously used to indicate a free slot, this leads to
errors, both when the 0-mac is registered and when it is unregistered.
The required fix is to check in addition that the slot containing the
0-mac has a reference count of zero.
Additionally, when comparing MAC addresses, need to mask out the 2 MSBs
of the u64 mac on both sides of the comparison.
Note that when the EN driver (mlx4_en) comes up, it set itself a proper
mac --> the RoCE driver gets to be notified on that and further handing
is done with the update qp command, as was added by commit 9433c18891
("IB/mlx4: Invoke UPDATE_QP for proxy QP1 on MAC changes").
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
When marsheling a user path to the kernel struct ib_sa_path, need
to zero smac, dmac and set the vlan id to the "no vlan" value.
Fixes: dd5f03beb4 ("IB/core: Ethernet L2 attributes in verbs/cm structures")
Reported-by: Aleksey Senin <alekseys@mellanox.com>
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
When device is being removed (e.g during VPI port link type change
from ETH to IB), tasks for gid table changes should not be executed.
Flush the current queue of tasks and block further tasks from entering the queue.
Signed-off-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Chuck Lever reported the following stack trace:
=================================
[ INFO: inconsistent lock state ]
3.16.0-rc2-00024-g2e78883 #17 Tainted: G E
---------------------------------
inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage.
swapper/0/0 [HC0[0]:SC1[1]:HE1:SE0] takes:
(&(&iboe->lock)->rlock){+.?...}, at: [<ffffffffa065f68b>] mlx4_ib_addr_event+0xdb/0x1a0 [mlx4_ib]
{SOFTIRQ-ON-W} state was registered at:
[<ffffffff810b3110>] mark_irqflags+0x110/0x170
[<ffffffff810b4806>] __lock_acquire+0x2c6/0x5b0
[<ffffffff810b4bd9>] lock_acquire+0xe9/0x120
[<ffffffff815f7f6e>] _raw_spin_lock+0x3e/0x80
[<ffffffffa0661084>] mlx4_ib_scan_netdevs+0x34/0x260 [mlx4_ib]
[<ffffffffa06612db>] mlx4_ib_netdev_event+0x2b/0x40 [mlx4_ib]
[<ffffffff81522219>] register_netdevice_notifier+0x99/0x1e0
[<ffffffffa06626e3>] mlx4_ib_add+0x743/0xbc0 [mlx4_ib]
[<ffffffffa05ec168>] mlx4_add_device+0x48/0xa0 [mlx4_core]
[<ffffffffa05ec2c3>] mlx4_register_interface+0x73/0xb0 [mlx4_core]
[<ffffffffa05c505e>] cm_req_handler+0x13e/0x460 [ib_cm]
[<ffffffff810002e2>] do_one_initcall+0x112/0x1c0
[<ffffffff810e8264>] do_init_module+0x34/0x190
[<ffffffff810ea62f>] load_module+0x5cf/0x740
[<ffffffff810ea939>] SyS_init_module+0x99/0xd0
[<ffffffff815f8fd2>] system_call_fastpath+0x16/0x1b
irq event stamp: 336142
hardirqs last enabled at (336142): [<ffffffff810612f5>] __local_bh_enable_ip+0xb5/0xc0
hardirqs last disabled at (336141): [<ffffffff81061296>] __local_bh_enable_ip+0x56/0xc0
softirqs last enabled at (336004): [<ffffffff8106123a>] _local_bh_enable+0x4a/0x50
softirqs last disabled at (336005): [<ffffffff810617a4>] irq_exit+0x44/0xd0
other info that might help us debug this:
Possible unsafe locking scenario:
CPU0
----
lock(&(&iboe->lock)->rlock);
<Interrupt>
lock(&(&iboe->lock)->rlock);
*** DEADLOCK ***
The above problem was caused by the spin lock being taken both in the process
context and in a soft-irq context (in a netdev notifier handler).
The required fix is to use spin_lock/unlock_bh() instead of spin_lock/unlock
on the iboe lock.
Reported-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
When a RoCE port becomes active and the netdev of the port has upper
device (e.g bond/team), GIDs derived from the upper dev should appear
in the port's RoCE GID table.
Signed-off-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
There's no need to reset the gid table twice and we need to do it only
for Ethernet ports. Also, no need to actively scan ndetdevs since it's
being done immediatly after we register netdev notifiers.
Signed-off-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
When reading the IPv6 addresses from the net-device, make sure to
avoid adding a duplicate entry to the GID table because of equality
between the default GID we generate and the default IPv6 link-local
address of the device.
Fixes: acc4fccf4e ("IB/mlx4: Make sure GID index 0 is always occupied")
Signed-off-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
When Ethernet netdev is not present for a port (e.g. when the link
layer type of the port is InfiniBand) it's possible to dereference a
null pointer when we do netdevice scanning.
To fix that, we move a section of code that needs to run only when
netdev is present to a proper if () statement.
Fixes: ad4885d279 ("IB/mlx4: Build the port IBoE GID table properly under bonding")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
We need to fail the bind operation if the iser connection state != UP
(started teardown) and this should be done under the state lock.
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
When failing to allocate TX CQ we already allocated RX CQ, so we need to make
sure we release it. Also, when failing to register notification to the RX CQ
we currently leak both RX and TX CQs of the current index, fix that too.
Signed-off-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Kalesh AP