From: Sean Hefty <sean.he...@intel.com>
If a user specifies AF_IB as the source address for a loopback
connection, limit the resolution to IB devices only.
Signed-off-by: Sean Hefty <sean.he...@intel.com>
---
drivers/infiniband/core/cma.c | 28 ++++++++++++++++++++--------
1 files changed, 20 insertions(+), 8 deletions(-)
diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
index 61454d3e..c6cc3a4 100644
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -1981,26 +1981,38 @@ static void cma_set_loopback(struct sockaddr *addr)
static int cma_bind_loopback(struct rdma_id_private *id_priv)
{
- struct cma_device *cma_dev;
+ struct cma_device *cma_dev, *cur_dev;
struct ib_port_attr port_attr;
union ib_gid gid;
u16 pkey;
int ret;
u8 p;
+ cma_dev = NULL;
mutex_lock(&lock);
- if (list_empty(&dev_list)) {
+ list_for_each_entry(cur_dev, &dev_list, list) {
+ if (cma_family(id_priv) == AF_IB &&
+ rdma_node_get_transport(cur_dev->device->node_type) !=
RDMA_TRANSPORT_IB)
+ continue;
+
+ if (!cma_dev)
+ cma_dev = cur_dev;
+
+ for (p = 1; p <= cur_dev->device->phys_port_cnt; ++p) {
+ if (!ib_query_port(cur_dev->device, p, &port_attr) &&
+ port_attr.state == IB_PORT_ACTIVE) {
+ cma_dev = cur_dev;
+ goto port_found;
+ }
+ }
+ }
+
+ if (!cma_dev) {
ret = -ENODEV;
goto out;
}
- list_for_each_entry(cma_dev, &dev_list, list)
- for (p = 1; p <= cma_dev->device->phys_port_cnt; ++p)
- if (!ib_query_port(cma_dev->device, p, &port_attr) &&
- port_attr.state == IB_PORT_ACTIVE)
- goto port_found;
p = 1;
- cma_dev = list_entry(dev_list.next, struct cma_device, list);
port_found:
ret = ib_get_cached_gid(cma_dev->device, p, 0, &gid);
--
1.7.3
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