linux-stable.git/drivers/infiniband, branch v3.17

Merge tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband

2014-09-23T23:47:34+00:00

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
  ...

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

2014-09-23T01:23:33+00:00

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
  ...

ipoib: validate struct ipoib_cb size

2014-09-22T18:29:55+00:00

To catch future errors sooner.

Signed-off-by: Eric Dumazet 
Signed-off-by: David S. Miller

Merge branches 'core', 'ipoib', 'iser', 'mlx4', 'ocrdma' and 'qib' into for-next

2014-09-22T17:05:40+00:00

IB/mlx4: Fix VF mac handling in RoCE

2014-09-22T16:46:53+00:00

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 
Signed-off-by: Or Gerlitz 
Signed-off-by: Roland Dreier

IB/mlx4: Do not allow APM under RoCE

2014-09-22T16:46:53+00:00

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 
Signed-off-by: Or Gerlitz 
Signed-off-by: Roland Dreier

IB/mlx4: Don't update QP1 in native mode

2014-09-22T16:46:53+00:00

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 
Signed-off-by: Or Gerlitz 
Signed-off-by: Roland Dreier

IB/mlx4: Avoid accessing netdevice when building RoCE qp1 header

2014-09-22T16:46:53+00:00

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 
Signed-off-by: Or Gerlitz 
Signed-off-by: Roland Dreier

IB/core: When marshaling uverbs path, clear unused fields

2014-09-22T16:46:52+00:00

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 
Signed-off-by: Matan Barak 
Signed-off-by: Or Gerlitz 
Signed-off-by: Roland Dreier

IB/mlx4: Avoid executing gid task when device is being removed

2014-09-22T16:46:52+00:00

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 
Signed-off-by: Or Gerlitz 
Signed-off-by: Roland Dreier