27 Jul, 2011

1 commit

  • This allows us to move duplicated code in
    (atomic_inc_not_zero() for now) to

    Signed-off-by: Arun Sharma
    Reviewed-by: Eric Dumazet
    Cc: Ingo Molnar
    Cc: David Miller
    Cc: Eric Dumazet
    Acked-by: Mike Frysinger
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Arun Sharma
     

17 Nov, 2009

1 commit

  • Export rdma_set_ib_paths to user space to allow applications to
    manually set the IB path used for connections. This allows
    alternative ways for a user space application or library to obtain
    path record information, including retrieving path information
    from cached data, avoiding direct interaction with the IB SA.
    The IB SA is a single, centralized entity that can limit scaling
    on large clusters running MPI applications.

    Future changes to the rdma cm can expand on this framework to
    support the full range of features allowed by the IB CM, such as
    separate forward and reverse paths and APM.

    Signed-off-by: Sean Hefty
    Reviewed-By: Jason Gunthorpe
    Signed-off-by: Roland Dreier

    Sean Hefty
     

15 Jul, 2008

1 commit


10 Oct, 2007

1 commit


17 Feb, 2007

1 commit

  • The IB SA tracks multicast join/leave requests on a per port basis and
    does not do any reference counting: if two users of the same port join
    the same group, and one leaves that group, then the SA will remove the
    port from the group even though there is one user who wants to stay a
    member left. Therefore, in order to support multiple users of the
    same multicast group from the same port, we need to perform reference
    counting locally.

    To do this, add an multicast submodule to ib_sa to perform reference
    counting of multicast join/leave operations. Modify ib_ipoib (the
    only in-kernel user of multicast) to use the new interface.

    Signed-off-by: Roland Dreier

    Sean Hefty
     

23 Sep, 2006

2 commits

  • Relevant SA queries are actually "greater than" / "less than", not
    "greater than or equal" / "less than or equal" as the names imply.
    (See IB spec 1.2 Vol 1, 15.2.5.16 PATHRECORD/Table 205 PathRecord)

    Signed-off-by: Michael S. Tsirkin
    Signed-off-by: Roland Dreier

    Michael S. Tsirkin
     
  • Require users to register with SA module, to prevent the sa_query
    module text from going away while an SA query callback is still
    running. Update all in-tree users for the new interface.

    Signed-off-by: Michael S. Tsirkin
    Signed-off-by: Sean Hefty
    Signed-off-by: Roland Dreier

    Michael S. Tsirkin
     

18 Jun, 2006

1 commit


11 Apr, 2006

1 commit

  • Push translation of static rate to HCA format into low-level drivers,
    where it belongs. For static rate encoding, use encoding of rate
    field from IB standard PathRecord, with addition of value 0, for
    backwards compatibility with current usage. The changes are:

    - Add enum ib_rate to midlayer includes.
    - Get rid of static rate translation in IPoIB; just use static rate
    directly from Path and MulticastGroup records.
    - Update mthca driver to translate absolute static rate into the
    format used by hardware. This also fixes mthca's static rate
    handling for HCAs that are capable of 4X DDR.

    Signed-off-by: Jack Morgenstein
    Signed-off-by: Roland Dreier

    Jack Morgenstein
     

09 Oct, 2005

1 commit

  • - added typedef unsigned int __nocast gfp_t;

    - replaced __nocast uses for gfp flags with gfp_t - it gives exactly
    the same warnings as far as sparse is concerned, doesn't change
    generated code (from gcc point of view we replaced unsigned int with
    typedef) and documents what's going on far better.

    Signed-off-by: Al Viro
    Signed-off-by: Linus Torvalds

    Al Viro
     

10 Sep, 2005

2 commits


27 Aug, 2005

1 commit