diff options
| author | Eli Cohen <eli@dev.mellanox.co.il> | 2010-10-13 21:26:51 +0200 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2010-10-13 15:46:43 -0700 |
| commit | 3c86aa70bf677a31b71c8292e349242e26cbc743 (patch) | |
| tree | 7f38edd826e444b1232185e154f313e70966d250 /drivers/infiniband/core/sa_query.c | |
| parent | fac70d51914674ce8ae742ed73441ddb4770ad20 (diff) | |
RDMA/cm: Add RDMA CM support for IBoE devices
Add support for IBoE device binding and IP --> GID resolution. Path
resolving and multicast joining are implemented within cma.c by
filling in the responses and running callbacks in the CMA work queue.
IP --> GID resolution always yields IPv6 link local addresses; remote
GIDs are derived from the destination MAC address of the remote port.
Multicast GIDs are always mapped to multicast MACs as is done in IPv6.
(IPv4 multicast is enabled by translating IPv4 multicast addresses to
IPv6 multicast as described in
<http://www.mail-archive.com/ipng@sunroof.eng.sun.com/msg02134.html>.)
Some helper functions are added to ib_addr.h.
Signed-off-by: Eli Cohen <eli@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband/core/sa_query.c')
| -rw-r--r-- | drivers/infiniband/core/sa_query.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/infiniband/core/sa_query.c b/drivers/infiniband/core/sa_query.c index 27674c790a7..91a660310b7 100644 --- a/drivers/infiniband/core/sa_query.c +++ b/drivers/infiniband/core/sa_query.c @@ -496,6 +496,7 @@ int ib_init_ah_from_path(struct ib_device *device, u8 port_num, { int ret; u16 gid_index; + int force_grh; memset(ah_attr, 0, sizeof *ah_attr); ah_attr->dlid = be16_to_cpu(rec->dlid); @@ -505,7 +506,9 @@ int ib_init_ah_from_path(struct ib_device *device, u8 port_num, ah_attr->port_num = port_num; ah_attr->static_rate = rec->rate; - if (rec->hop_limit > 1) { + force_grh = rdma_port_get_link_layer(device, port_num) == IB_LINK_LAYER_ETHERNET; + + if (rec->hop_limit > 1 || force_grh) { ah_attr->ah_flags = IB_AH_GRH; ah_attr->grh.dgid = rec->dgid; |