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IB/core: Add link layer property to ports

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This patch allows ports to have different link layers:
IB_LINK_LAYER_INFINIBAND or IB_LINK_LAYER_ETHERNET.  This is required
for adding IBoE (InfiniBand-over-Ethernet, aka RoCE) support.  For
devices that do not provide an implementation for querying the link
layer property of a port, we return a default value based on the
transport: RMA_TRANSPORT_IB nodes will return IB_LINK_LAYER_INFINIBAND
and RDMA_TRANSPORT_IWARP nodes will return IB_LINK_LAYER_ETHERNET.

Signed-off-by: Eli Cohen <eli@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Eli Cohen
2010-09-27 17:51:10 -07:00
committed by Roland Dreier
parent 252a52aa4f
commit a3f5adaf49
2 changed files with 27 additions and 0 deletions
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11
include/rdma/ib_verbs.h
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@@ -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);