diff options
| author | Sean Hefty <sean.hefty@intel.com> | 2013-05-29 17:09:15 (GMT) |
|---|---|---|
| committer | Roland Dreier <roland@purestorage.com> | 2013-06-20 20:08:04 (GMT) |
| commit | b0569e40753aa4f742cfd792447a093ab7937563 (patch) | |
| tree | 2e7c67e3f6a10845646dd27af55f0bf7a58a2e8b | |
| parent | f4753834b5d06cae9a1d5453c96760571876a014 (diff) | |
| download | linux-b0569e40753aa4f742cfd792447a093ab7937563.tar.xz | |
RDMA/cma: Restrict AF_IB loopback to binding to IB devices only
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.hefty@intel.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
| -rw-r--r-- | 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 9069453..524cf98 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); |