diff options
| author | Sean Hefty | 2010-02-08 16:41:15 -0800 |
|---|---|---|
| committer | Roland Dreier | 2010-02-10 12:00:48 -0800 |
| commit | 8523c0480979080e8088e40f25459e5b2d19f621 (patch) | |
| tree | 31bfb1ffba9d39dea55177f8e7308f45f3d272a3 /drivers | |
| parent | 3c8ad49b015eb115fbd6982f56d530f53cf57f84 (diff) | |
RDMA/cm: Revert association of an RDMA device when binding to loopback
Revert the following change from commit 6f8372b6 ("RDMA/cm: fix
loopback address support")
The defined behavior of rdma_bind_addr is to associate an RDMA
device with an rdma_cm_id, as long as the user specified a non-
zero address. (ie they weren't just trying to reserve a port)
Currently, if the loopback address is passed to rdma_bind_addr,
no device is associated with the rdma_cm_id. Fix this.
It turns out that important apps such as Open MPI depend on
rdma_bind_addr() NOT associating any RDMA device when binding to a
loopback address. Open MPI is being updated to deal with this, but at
least until a new Open MPI release is available, maintain the previous
behavior: allow rdma_bind_addr() to succeed, but do not bind to a
device.
Signed-off-by: Sean Hefty <sean.hefty@intel.com>
Acked-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/infiniband/core/cma.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c index cc9b5940fa97..875e34e0b235 100644 --- a/drivers/infiniband/core/cma.c +++ b/drivers/infiniband/core/cma.c @@ -2115,9 +2115,7 @@ int rdma_bind_addr(struct rdma_cm_id *id, struct sockaddr *addr) if (ret) goto err1; - if (cma_loopback_addr(addr)) { - ret = cma_bind_loopback(id_priv); - } else if (!cma_zero_addr(addr)) { + if (!cma_any_addr(addr)) { ret = rdma_translate_ip(addr, &id->route.addr.dev_addr); if (ret) goto err1; |