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-rw-r--r--drivers/infiniband/core/verbs.c16
-rw-r--r--include/rdma/ib_verbs.h11
2 files changed, 27 insertions, 0 deletions
diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c
index e0fa22238715..af7a8b08b2e9 100644
--- a/drivers/infiniband/core/verbs.c
+++ b/drivers/infiniband/core/verbs.c
@@ -94,6 +94,22 @@ rdma_node_get_transport(enum rdma_node_type node_type)
}
EXPORT_SYMBOL(rdma_node_get_transport);
+enum rdma_link_layer rdma_port_get_link_layer(struct ib_device *device, u8 port_num)
+{
+ if (device->get_link_layer)
+ return device->get_link_layer(device, port_num);
+
+ switch (rdma_node_get_transport(device->node_type)) {
+ case RDMA_TRANSPORT_IB:
+ return IB_LINK_LAYER_INFINIBAND;
+ case RDMA_TRANSPORT_IWARP:
+ return IB_LINK_LAYER_ETHERNET;
+ default:
+ return IB_LINK_LAYER_UNSPECIFIED;
+ }
+}
+EXPORT_SYMBOL(rdma_port_get_link_layer);
+
/* Protection domains */
struct ib_pd *ib_alloc_pd(struct ib_device *device)
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 857b3b9cf120..e04c4888d1fd 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -75,6 +75,12 @@ enum rdma_transport_type {
enum rdma_transport_type
rdma_node_get_transport(enum rdma_node_type node_type) __attribute_const__;
+enum rdma_link_layer {
+ IB_LINK_LAYER_UNSPECIFIED,
+ IB_LINK_LAYER_INFINIBAND,
+ IB_LINK_LAYER_ETHERNET,
+};
+
enum ib_device_cap_flags {
IB_DEVICE_RESIZE_MAX_WR = 1,
IB_DEVICE_BAD_PKEY_CNTR = (1<<1),
@@ -1010,6 +1016,8 @@ struct ib_device {
int (*query_port)(struct ib_device *device,
u8 port_num,
struct ib_port_attr *port_attr);
+ enum rdma_link_layer (*get_link_layer)(struct ib_device *device,
+ u8 port_num);
int (*query_gid)(struct ib_device *device,
u8 port_num, int index,
union ib_gid *gid);
@@ -1222,6 +1230,9 @@ int ib_query_device(struct ib_device *device,
int ib_query_port(struct ib_device *device,
u8 port_num, struct ib_port_attr *port_attr);
+enum rdma_link_layer rdma_port_get_link_layer(struct ib_device *device,
+ u8 port_num);
+
int ib_query_gid(struct ib_device *device,
u8 port_num, int index, union ib_gid *gid);