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git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
Pull infiniband/rdma fixes from Roland Dreier:
"Last late set of InfiniBand/RDMA fixes for 3.17:
- fixes for the new memory region re-registration support
- iSER initiator error path fixes
- grab bag of small fixes for the qib and ocrdma hardware drivers
- larger set of fixes for mlx4, especially in RoCE mode"
* tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (26 commits)
IB/mlx4: Fix VF mac handling in RoCE
IB/mlx4: Do not allow APM under RoCE
IB/mlx4: Don't update QP1 in native mode
IB/mlx4: Avoid accessing netdevice when building RoCE qp1 header
mlx4: Fix mlx4 reg/unreg mac to work properly with 0-mac addresses
IB/core: When marshaling uverbs path, clear unused fields
IB/mlx4: Avoid executing gid task when device is being removed
IB/mlx4: Fix lockdep splat for the iboe lock
IB/mlx4: Get upper dev addresses as RoCE GIDs when port comes up
IB/mlx4: Reorder steps in RoCE GID table initialization
IB/mlx4: Don't duplicate the default RoCE GID
IB/mlx4: Avoid null pointer dereference in mlx4_ib_scan_netdevs()
IB/iser: Bump version to 1.4.1
IB/iser: Allow bind only when connection state is UP
IB/iser: Fix RX/TX CQ resource leak on error flow
RDMA/ocrdma: Use right macro in query AH
RDMA/ocrdma: Resolve L2 address when creating user AH
mlx4: Correct error flows in rereg_mr
IB/qib: Correct reference counting in debugfs qp_stats
IPoIB: Remove unnecessary port query
...
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This particular reference count is not needed with the rcu protection,
and the current code leaks a reference count, causing a hang in
qib_qp_destroy().
Cc: <stable@vger.kernel.org>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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The static helper routine, __qib_get_user_pages(), accepts a vma arg,
but current use always passes NULL.
This has caused some confusion associated with the correct use of this
argument, but since the current use case doesn't require the
flexiblity, the best thing to do is to simplfy the code to always pass
NULL to get_user_pages().
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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The static helper routine, __ipath_get_user_pages(), accepts a vma
arg, but current use always passes NULL.
This has caused some confusion associated with the correct use of this
argument, but since the current use case doesn't require the
flexiblity, the best thing to do is to simplfy the code to always pass
NULL to get_user_pages().
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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ocrdma_query_ah() does not use correct macro, and checks the wrong bit
for the validity of address handle in vector table. Fix this.
Signed-off-by: Devesh Sharma <devesh.sharma@emulex.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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Because of IP-based GIDs, userspace AHs must have MAC and VLAN ID
resolved separately. Presently, user AHs are broken for ocrdma. This
patch resolves L2 addresses while creating user AH and obtains the
right DMAC and VLAN ID before creating AH.
Signed-off-by: Devesh Sharma <devesh.sharma@emulex.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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When ib_request_notify_cq() is called for the first time, ocrdma tries
to skip setting deffered_arm flag. This may lead CQ to an un-armed
state thus never generating a CQ event and leaving consumer hung.
This patch removes the part of code that skips setting deferred_arm.
Signed-off-by: Devesh Sharma <devesh.sharma@emulex.com>
Signed-off-by: Selvin Xavier <selvin.xavier@emulex.com>
Signed-off-by: Mitesh Ahuja <mitesh.ahuja@emulex.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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Fix ocrdma_query_device() to report correct value of max_fast_reg_page_list_len.
Signed-off-by: Devesh Sharma <devesh.sharma@emulex.com>
Signed-off-by: Selvin Xavier <selvin.xavier@emulex.com>
Signed-off-by: Mitesh Ahuja <mitesh.ahuja@emulex.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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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>
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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>
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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>
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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>
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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: dd5f03beb4f7 ("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>
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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>
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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>
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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>
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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>
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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: acc4fccf4eff ("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>
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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: ad4885d279b6 ("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>
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This patch addresses feedback from Sagi Grimberg on the rereg_mr
implementation of mlx4. The following are fixed:
1. Set the correct pd_flags
2. Make sure we change the iova and size MR fields only after
successful write and allocation of the MTTs.
3. Make the error checking more robust
Fixes: e630664c8383 ("mlx4_core: Add helper functions to support MR re-registration")
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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According to <http://marc.info/?t=138347640900004&r=1&w=2>, revision
A0 of Connect-X does not correctly assemble TSO packets. Disable that
feature on that hardware revision.
Signed-off-by: Roland Dreier <roland@purestorage.com>
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Signed-off-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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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>
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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>
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There are two queries for port attributes one after another. A second
call is not needed since port_attr structure already holds the data.
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Alex Estrin <alex.estrin@intel.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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In debugging an application that receives -ENOMEM from ib_reg_mr(), I
found that ib_umem_get() can fail because the pinned_vm count has
wrapped causing it to always be larger than the lock limit even with
RLIMIT_MEMLOCK set to RLIM_INFINITY.
The wrapping of pinned_vm occurs because the process that calls
ib_reg_mr() will have its mm->pinned_vm count incremented. Later a
different process with a different mm_struct than the one that
allocated the ib_umem struct ends up releasing it which results in
decrementing the new processes mm->pinned_vm count past zero and
wrapping.
I'm not entirely sure what circumstances cause a different process to
release the ib_umem than the one that allocated it but the kernel
stack trace of the freeing process from my situation looks like the
following:
Call Trace:
[<ffffffff814d64b1>] dump_stack+0x19/0x1b
[<ffffffffa0b522a5>] ib_umem_release+0x1f5/0x200 [ib_core]
[<ffffffffa0b90681>] mlx4_ib_destroy_qp+0x241/0x440 [mlx4_ib]
[<ffffffffa0b4d93c>] ib_destroy_qp+0x12c/0x170 [ib_core]
[<ffffffffa0cc7129>] ib_uverbs_close+0x259/0x4e0 [ib_uverbs]
[<ffffffff81141cba>] __fput+0xba/0x240
[<ffffffff81141e4e>] ____fput+0xe/0x10
[<ffffffff81060894>] task_work_run+0xc4/0xe0
[<ffffffff810029e5>] do_notify_resume+0x95/0xa0
[<ffffffff814e3dd0>] int_signal+0x12/0x17
The following patch fixes the issue by storing the pid struct of the
process that calls ib_umem_get() so that ib_umem_release and/or
ib_umem_account() can properly decrement the pinned_vm count of the
correct mm_struct.
Signed-off-by: Shawn Bohrer <sbohrer@rgmadvisors.com>
Reviewed-by: Shachar Raindel <raindel@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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Pull networking fixes from David Miller:
1) If the user gives us a msg_namelen of 0, don't try to interpret
anything pointed to by msg_name. From Ani Sinha.
2) Fix some bnx2i/bnx2fc randconfig compilation errors.
The gist of the issue is that we firstly have drivers that span both
SCSI and networking. And at the top of that chain of dependencies
we have things like SCSI_FC_ATTRS and SCSI_NETLINK which are
selected.
But since select is a sledgehammer and ignores dependencies,
everything to select's SCSI_FC_ATTRS and/or SCSI_NETLINK has to also
explicitly select their dependencies and so on and so forth.
Generally speaking 'select' is supposed to only be used for child
nodes, those which have no dependencies of their own. And this
whole chain of dependencies in the scsi layer violates that rather
strongly.
So just make SCSI_NETLINK depend upon it's dependencies, and so on
and so forth for the things selecting it (either directly or
indirectly).
From Anish Bhatt and Randy Dunlap.
3) Fix generation of blackhole routes in IPSEC, from Steffen Klassert.
4) Actually notice netdev feature changes in rtl_open() code, from
Hayes Wang.
5) Fix divide by zero in bond enslaving, from Nikolay Aleksandrov.
6) Missing memory barrier in sunvnet driver, from David Stevens.
7) Don't leave anycast addresses around when ipv6 interface is
destroyed, from Sabrina Dubroca.
8) Don't call efx_{arch}_filter_sync_rx_mode before addr_list_lock is
initialized in SFC driver, from Edward Cree.
9) Fix missing DMA error checking in 3c59x, from Neal Horman.
10) Openvswitch doesn't emit OVS_FLOW_CMD_NEW notifications accidently,
fix from Samuel Gauthier.
11) pch_gbe needs to select NET_PTP_CLASSIFY otherwise we can get a
build error.
12) Fix macvlan regression wherein we stopped emitting
broadcast/multicast frames over software devices. From Nicolas
Dichtel.
13) Fix infiniband bug due to unintended overflow of skb->cb[], from
Eric Dumazet. And add an assertion so this doesn't happen again.
14) dm9000_parse_dt() should return error pointers, not NULL. From
Tobias Klauser.
15) IP tunneling code uses this_cpu_ptr() in preemptible contexts, fix
from Eric Dumazet.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (87 commits)
net: bcmgenet: call bcmgenet_dma_teardown in bcmgenet_fini_dma
net: bcmgenet: fix TX reclaim accounting for fragments
ipv4: do not use this_cpu_ptr() in preemptible context
dm9000: Return an ERR_PTR() in all error conditions of dm9000_parse_dt()
r8169: fix an if condition
r8152: disable ALDPS
ipoib: validate struct ipoib_cb size
net: sched: shrink struct qdisc_skb_cb to 28 bytes
tg3: Work around HW/FW limitations with vlan encapsulated frames
macvlan: allow to enqueue broadcast pkt on virtual device
pch_gbe: 'select' NET_PTP_CLASSIFY.
scsi: Use 'depends' with LIBFC instead of 'select'.
openvswitch: restore OVS_FLOW_CMD_NEW notifications
genetlink: add function genl_has_listeners()
lib: rhashtable: remove second linux/log2.h inclusion
net: allow macvlans to move to net namespace
3c59x: Fix bad offset spec in skb_frag_dma_map
3c59x: Add dma error checking and recovery
sparc: bpf_jit: fix support for ldx/stx mem and SKF_AD_VLAN_TAG
can: at91_can: add missing prepare and unprepare of the clock
...
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To catch future errors sooner.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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We wrongly tested QP context bits without BE conversion
as was spotted by sparse...
drivers/infiniband/hw/mlx4/qp.c:1685:38: sparse: restricted __be32 degrades to integer
Fix that!
Fixes: d2fce8a ('mlx4: Set user-space raw Ethernet QPs to properly handle VXLAN traffic')
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Changing the vlan stripping policy of the QP isn't supported by older
firmware versions for the INIT2RTR command. Nevertheless, we've used it.
Fix that by doing this policy change using INIT2RTR only if the firmware
supports it, otherwise, we call UPDATE_QP command to do the task.
Fixes: 7677fc9 ('net/mlx4: Strengthen VLAN tags/priorities enforcement in VST mode')
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The iser target is the RDMA requester and the iser initiator is the
RDMA responder. In order to determine the max inflight RDMA READ requests
to set on the QP (initiator_depth), it should take the min between the
initiator published initiator_depth and the max inflight rdma read
requests its local HCA support (max_qp_init_rd_atom).
The target will never handle incoming RDMA READ requests so no need to
set responder_resources.
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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rdma_disconnect may be called in 2 code flows:
- isert_wait_conn: disconnect initiated be the target
- disconnected_handler: disconnect invoked by the initiator
In case isert_conn->disconnect is true then rdma_disconnect
was called in disconnected handler, no need to call it again
from isert_wait_conn.
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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disconnected_handler is invoked on several CM events (such
as DISCONNECTED, DEVICE_REMOVAL, TIMEWAIT_EXIT...). Since
multiple events can occur while before isert_free_conn is
invoked, we might put all isert_conn references and free
the connection too early.
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Cc: <stable@vger.kernel.org> # v3.10+
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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In case the connection didn't reach connected state, disconnected
handler will never be invoked thus the second kref_put on
isert_conn will be missing.
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Cc: <stable@vger.kernel.org> # v3.10+
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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Raw Ethernet QPs opened from user-space lack the proper setup to
recieve/handle VXLAN traffic when VXLAN offloads are enabled.
Fix that by adding a tunnel steering rule on top of the normal unicast
steering rule and set the tunnel_type field in the QP context.
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull DEFINE_PCI_DEVICE_TABLE removal from Bjorn Helgaas:
"Part two of the PCI changes for v3.17:
- Remove DEFINE_PCI_DEVICE_TABLE macro use (Benoit Taine)
It's a mechanical change that removes uses of the
DEFINE_PCI_DEVICE_TABLE macro. I waited until later in the merge
window to reduce conflicts, but it's possible you'll still see a few"
* tag 'pci-v3.17-changes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
PCI: Remove DEFINE_PCI_DEVICE_TABLE macro use
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We should prefer `struct pci_device_id` over `DEFINE_PCI_DEVICE_TABLE` to
meet kernel coding style guidelines. This issue was reported by checkpatch.
A simplified version of the semantic patch that makes this change is as
follows (http://coccinelle.lip6.fr/):
// <smpl>
@@
identifier i;
declarer name DEFINE_PCI_DEVICE_TABLE;
initializer z;
@@
- DEFINE_PCI_DEVICE_TABLE(i)
+ const struct pci_device_id i[]
= z;
// </smpl>
[bhelgaas: add semantic patch]
Signed-off-by: Benoit Taine <benoit.taine@lip6.fr>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
Pull infiniband/rdma updates from Roland Dreier:
"Main set of InfiniBand/RDMA updates for 3.17 merge window:
- MR reregistration support
- MAD support for RMPP in userspace
- iSER and SRP initiator updates
- ocrdma hardware driver updates
- other fixes..."
* tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (52 commits)
IB/srp: Fix return value check in srp_init_module()
RDMA/ocrdma: report asic-id in query device
RDMA/ocrdma: Update sli data structure for endianness
RDMA/ocrdma: Obtain SL from device structure
RDMA/uapi: Include socket.h in rdma_user_cm.h
IB/srpt: Handle GID change events
IB/mlx5: Use ARRAY_SIZE instead of sizeof/sizeof[0]
IB/mlx4: Use ARRAY_SIZE instead of sizeof/sizeof[0]
RDMA/amso1100: Check for integer overflow in c2_alloc_cq_buf()
IPoIB: Remove unnecessary test for NULL before debugfs_remove()
IB/mad: Add user space RMPP support
IB/mad: add new ioctl to ABI to support new registration options
IB/mad: Add dev_notice messages for various umad/mad registration failures
IB/mad: Update module to [pr|dev]_* style print messages
IB/ipoib: Avoid multicast join attempts with invalid P_key
IB/umad: Update module to [pr|dev]_* style print messages
IB/ipoib: Avoid flushing the workqueue from worker context
IB/ipoib: Use P_Key change event instead of P_Key polling mechanism
IB/ipath: Add P_Key change event support
mlx4_core: Add support for secure-host and SMP firewall
...
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'mlx4', 'mlx5', 'ocrdma' and 'srp' into for-next
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In case of error, the function create_workqueue() returns NULL pointer
not ERR_PTR(). The IS_ERR() test in the return value check should be
replaced with NULL test.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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GID change events need a refresh just like LID change events and several
others. Handle this the same as the others.
Signed-off-by: Doug Ledford <dledford@redhat.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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From Documentation/scsi/scsi_mid_low_api.txt: "resid - an LLD should
set this signed integer to the requested transfer length (i.e.
'request_bufflen') less the number of bytes that are actually
transferred." This means that resid > 0 in case of an underrun and
also that resid < 0 in case of an overrun. Modify the SRP initiator
code such that it matches this requirement.
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Reviewed-by: David Dillow <dave@thedillows.org>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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If scsi_remove_host() is invoked after a SCSI device has been blocked,
if the fast_io_fail_tmo or dev_loss_tmo work gets scheduled on the
workqueue executing srp_remove_work() and if an I/O request is
scheduled after the SCSI device had been blocked by e.g. multipathd
then the following deadlock can occur:
kworker/6:1 D ffff880831f3c460 0 195 2 0x00000000
Call Trace:
[<ffffffff814aafd9>] schedule+0x29/0x70
[<ffffffff814aa0ef>] schedule_timeout+0x10f/0x2a0
[<ffffffff8105af6f>] msleep+0x2f/0x40
[<ffffffff8123b0ae>] __blk_drain_queue+0x4e/0x180
[<ffffffff8123d2d5>] blk_cleanup_queue+0x225/0x230
[<ffffffffa0010732>] __scsi_remove_device+0x62/0xe0 [scsi_mod]
[<ffffffffa000ed2f>] scsi_forget_host+0x6f/0x80 [scsi_mod]
[<ffffffffa0002eba>] scsi_remove_host+0x7a/0x130 [scsi_mod]
[<ffffffffa07cf5c5>] srp_remove_work+0x95/0x180 [ib_srp]
[<ffffffff8106d7aa>] process_one_work+0x1ea/0x6c0
[<ffffffff8106dd9b>] worker_thread+0x11b/0x3a0
[<ffffffff810758bd>] kthread+0xed/0x110
[<ffffffff814b972c>] ret_from_fork+0x7c/0xb0
multipathd D ffff880096acc460 0 5340 1 0x00000000
Call Trace:
[<ffffffff814aafd9>] schedule+0x29/0x70
[<ffffffff814aa0ef>] schedule_timeout+0x10f/0x2a0
[<ffffffff814ab79b>] io_schedule_timeout+0x9b/0xf0
[<ffffffff814abe1c>] wait_for_completion_io_timeout+0xdc/0x110
[<ffffffff81244b9b>] blk_execute_rq+0x9b/0x100
[<ffffffff8124f665>] sg_io+0x1a5/0x450
[<ffffffff8124fd21>] scsi_cmd_ioctl+0x2a1/0x430
[<ffffffff8124fef2>] scsi_cmd_blk_ioctl+0x42/0x50
[<ffffffffa00ec97e>] sd_ioctl+0xbe/0x140 [sd_mod]
[<ffffffff8124bd04>] blkdev_ioctl+0x234/0x840
[<ffffffff811cb491>] block_ioctl+0x41/0x50
[<ffffffff811a0df0>] do_vfs_ioctl+0x300/0x520
[<ffffffff811a1051>] SyS_ioctl+0x41/0x80
[<ffffffff814b9962>] tracesys+0xd0/0xd5
Fix this by scheduling removal work on another workqueue than the
transport layer timers.
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Reviewed-by: David Dillow <dave@thedillows.org>
Cc: Sebastian Parschauer <sebastian.riemer@profitbricks.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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Ocrdma does not report hw_ver when query_device is issued. This patch
adds a meaningful value to this field.
Signed-off-by: Devesh Sharma <devesh.sharma@emulex.com>
Signed-off-by: Mitesh Ahuja <mitesh.ahuja@emulex.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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Update the sli specific mailbox command request/response data
sturcures to fix endianness issues.
Signed-off-by: Devesh Sharma <devesh.sharma@emulex.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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Currently, driver obtains service level value from ah_attr->sl field.
However, this field is set to zero all the times from rdma-cm. This
patch allows create_ah to obtain service level from dev->sl.
Signed-off-by: Devesh Sharma <devesh.sharma@emulex.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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Signed-off-by: Selvin Xavier <selvin.xavier@emulex.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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Fix the warning about the usage of plain integer as NULL pointer.
Signed-off-by: Selvin Xavier <selvin.xavier@emulex.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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Current GID table gets updated only at the time of inet notification.
Fix this by initializing the table at the time of device registration.
Signed-off-by: Selvin Xavier <selvin.xavier@emulex.com>
Signed-off-by: Devesh Sharma <devesh.sharma@emulex.com>
Signed-off-by: Somnath Kotur <somnath.kotur@emulex.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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