diff options
| author | Michael Brown | 2016-03-04 14:55:50 +0100 |
|---|---|---|
| committer | Michael Brown | 2016-03-08 13:23:24 +0100 |
| commit | 114a2f19a638bb92fb39e901d802f68a7276dca1 (patch) | |
| tree | 328e3165ace9d9ebdbdf25d0985241b1f5a481f5 /src/net | |
| parent | [infiniband] Use correct transaction identifier in CM responses (diff) | |
| download | ipxe-114a2f19a638bb92fb39e901d802f68a7276dca1.tar.gz ipxe-114a2f19a638bb92fb39e901d802f68a7276dca1.tar.xz ipxe-114a2f19a638bb92fb39e901d802f68a7276dca1.zip | |
[infiniband] Do not use GRH for local paths
Avoid including an unnecessary GRH in packets sent to unicast
destinations within the local subnet.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Diffstat (limited to 'src/net')
| -rw-r--r-- | src/net/infiniband/ib_pathrec.c | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/src/net/infiniband/ib_pathrec.c b/src/net/infiniband/ib_pathrec.c index 113b90bd..4b00f3b9 100644 --- a/src/net/infiniband/ib_pathrec.c +++ b/src/net/infiniband/ib_pathrec.c @@ -75,6 +75,12 @@ static void ib_path_complete ( struct ib_device *ibdev, "%d\n", ibdev->name, IB_GID_ARGS ( dgid ), path->av.lid, path->av.sl, path->av.rate ); + /* Use only the LID if no GRH is needed for this path */ + if ( memcmp ( &path->av.gid.s.prefix, &ibdev->gid.s.prefix, + sizeof ( path->av.gid.s.prefix ) ) == 0 ) { + path->av.gid_present = 0; + } + out: /* Destroy the completed transaction */ ib_destroy_madx ( ibdev, mi, madx ); @@ -245,13 +251,6 @@ int ib_resolve_path ( struct ib_device *ibdev, struct ib_address_vector *av ) { struct ib_cached_path *cached; unsigned int cache_idx; - /* Sanity check */ - if ( ! av->gid_present ) { - DBGC ( ibdev, "IBDEV %s attempt to look up path without GID\n", - ibdev->name ); - return -EINVAL; - } - /* Look in cache for a matching entry */ cached = ib_find_path_cache_entry ( ibdev, gid ); if ( cached && cached->path->av.lid ) { |