diff options
| author | Eli Cohen <eli@mellanox.co.il> | 2010-09-27 17:51:10 -0700 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2010-09-27 17:51:10 -0700 |
| commit | a3f5adaf491490089215f863a61b9422fae902f8 (patch) | |
| tree | ab4bd1d3875a220cf752bd1a9fd233a1c14bd86e | |
| parent | 252a52aa4fa22a668f019e55b3aac3ff71ec1c29 (diff) | |
IB/core: Add link layer property to ports
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>
| -rw-r--r-- | drivers/infiniband/core/verbs.c | 16 | ||||
| -rw-r--r-- | include/rdma/ib_verbs.h | 11 |
2 files changed, 27 insertions, 0 deletions
diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c index e0fa2223871..af7a8b08b2e 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 857b3b9cf12..e04c4888d1f 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); |