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authorSean Hefty <sean.hefty@intel.com>2010-02-08 16:41:15 -0800
committerRoland Dreier <rolandd@cisco.com>2010-02-10 12:00:48 -0800
commit8523c0480979080e8088e40f25459e5b2d19f621 (patch)
tree31bfb1ffba9d39dea55177f8e7308f45f3d272a3 /drivers
parent3c8ad49b015eb115fbd6982f56d530f53cf57f84 (diff)
downloadop-kernel-dev-8523c0480979080e8088e40f25459e5b2d19f621.zip
op-kernel-dev-8523c0480979080e8088e40f25459e5b2d19f621.tar.gz
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.c4
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
index cc9b594..875e34e 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;
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