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  1. 24 Apr, 2007 7 commits
    • Sean Hefty's avatar
      IB/umad: Implement GRH handling for sent/received MADs · aeba84a9
      Sean Hefty authored 
      We need to set the SGID index for routed MADs and pass received
GRH information to userspace when a MAD is received.
Signed-off-by: default avatarSean Hefty <sean.hefty@intel.com>
      aeba84a9
    • Sean Hefty's avatar
      IB/ipoib: Use ib_init_ah_from_path to initialize ah_attr · 46f1b3d7
      Sean Hefty authored 
      To support destinations that are not on the local IB subnet, IPoIB
should include the GRH information when constructing an address
handle.  Using the existing ib_init_ah_from_path() call will do this
for us.
Signed-off-by: default avatarSean Hefty <sean.hefty@intel.com>
      46f1b3d7
    • Sean Hefty's avatar
      IB/sa: Set src_path_bits correctly in ib_init_ah_from_path() · d0e7bb14
      Sean Hefty authored 
      src_path_bits needs to mask off the base LID value.
Signed-off-by: default avatarSean Hefty <sean.hefty@intel.com>
      d0e7bb14
    • Sean Hefty's avatar
      IB/ucm: Simplify ib_ucm_event() · 9d41b7fd
      Sean Hefty authored 
      Use wait_event_interruptible() instead of a more complicated
open-coded equivalent.
Signed-off-by: default avatarSean Hefty <sean.hefty@intel.com>
      9d41b7fd
    • Sean Hefty's avatar
      RDMA/ucma: Simplify ucma_get_event() · d92f7644
      Sean Hefty authored 
      Use wait_event_interruptible() instead of a more complicated
open-coded equivalent.
Signed-off-by: default avatarSean Hefty <sean.hefty@intel.com>
      d92f7644
    • Roland Dreier's avatar
      IB/mthca: Simplify CQ cleaning in mthca_free_qp() · 30c00986
      Roland Dreier authored 
      mthca_free_qp() already has local variables to hold the QP's send_cq
and recv_cq, so we can slightly clean up the calls to mthca_cq_clean()
by using those local variables instead of expressions like
to_mcq(qp->ibqp.send_cq).

Also, by cleaning the recv_cq first, we can avoid worrying about
whether the QP is attached to an SRQ for the second call, because we
would only clean send_cq if send_cq is not equal to recv_cq, and that
means send_cq cannot have any receive completions from the QP being
destroyed.

All this work even improves the generated code a bit:

add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-5 (-5)
function                                     old     new   delta
mthca_free_qp                                510     505      -5
Signed-off-by: default avatarRoland Dreier <rolandd@cisco.com>
      30c00986
    • Roland Dreier's avatar
      IB/mthca: Fix mthca_write_mtt() on HCAs with hidden memory · 532c3b58
      Roland Dreier authored 
      Commit b2875d4c ("IB/mthca: Always fill MTTs from CPU") causes a crash
in mthca_write_mtt() with non-memfree HCAs that have their memory
hidden (that is, have only two PCI BARs instead of having a third BAR
that allows access to the RAM attached to the HCA) on 64-bit
architectures.  This is because the commit just before, c20e20ab
("IB/mthca: Merge MR and FMR space on 64-bit systems") makes
dev->mr_table.fmr_mtt_buddy equal to &dev->mr_table.mtt_buddy and
hence mthca_write_mtt() tries to write directly into the HCA's MTT
table.  However, since that table is in the HCA's memory, this is
impossible without the PCI BAR that gives access to that memory.

This causes a crash because mthca_tavor_write_mtt_seg() basically
tries to dereference some offset of a NULL pointer.  Fix this by
adding a test of MTHCA_FLAG_FMR in mthca_write_mtt() so that we always
use the WRITE_MTT firmware command rather than writing directly if
FMRs are not enabled.
Signed-off-by: default avatarRoland Dreier <rolandd@cisco.com>
      532c3b58
  3. 19 Apr, 2007 33 commits