]> pilppa.com Git - linux-2.6-omap-h63xx.git/commit
IB/mthca: Make all device methods truly reentrant
authorRoland Dreier <rolandd@cisco.com>
Sun, 18 Jun 2006 03:37:41 +0000 (20:37 -0700)
committerRoland Dreier <rolandd@cisco.com>
Sun, 18 Jun 2006 03:37:41 +0000 (20:37 -0700)
commitc93b6fbaa99bb3a1552e14317296be14dde51dfb
treebad61dc728f0eb28fcfdf01953cd0ae43a4b2350
parentc9c5d9feef86debee4d8e77a738ad86877cf371a
IB/mthca: Make all device methods truly reentrant

Documentation/infiniband/core_locking.txt says:

  All of the methods in struct ib_device exported by a low-level
  driver must be fully reentrant.  The low-level driver is required to
  perform all synchronization necessary to maintain consistency, even
  if multiple function calls using the same object are run
  simultaneously.

However, mthca's modify_qp, modify_srq and resize_cq methods are
currently not reentrant.  Add a mutex to the QP, SRQ and CQ structures
so that these calls can be properly serialized.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
drivers/infiniband/hw/mthca/mthca_cq.c
drivers/infiniband/hw/mthca/mthca_provider.c
drivers/infiniband/hw/mthca/mthca_provider.h
drivers/infiniband/hw/mthca/mthca_qp.c
drivers/infiniband/hw/mthca/mthca_srq.c