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authorJack Morgenstein <jackm@dev.mellanox.co.il>2012-04-24 16:06:50 -0700
committerRoland Dreier <roland@purestorage.com>2012-04-24 16:06:50 -0700
commit840777de530ae96ee9a3022f7ec1d6c65abb26ac (patch)
tree4276b8b4082dd44f323c3c9b65e09a87e7570b4f /drivers/infiniband
parent0034102808e0dbbf3a2394b82b1bb40b5778de9e (diff)
IB/mad: Set 'D' bit in response for unhandled MADs
Commit 0b307043049f ("IB/mad: Return error response for unsupported MADs") does not handle directed-route MADs properly -- it fails to set the 'D' bit in the response MAD status field. This is a problem for SmInfo MADs when the receiver does not have an SM running. Reviewed-by: Hal Rosenstock <hal@mellanox.com> Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Roland Dreier <roland@purestorage.com>
Diffstat (limited to 'drivers/infiniband')
-rw-r--r--drivers/infiniband/core/mad.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/infiniband/core/mad.c b/drivers/infiniband/core/mad.c
index 426bb7617ec..1c73d8aa4b9 100644
--- a/drivers/infiniband/core/mad.c
+++ b/drivers/infiniband/core/mad.c
@@ -1854,6 +1854,8 @@ static bool generate_unmatched_resp(struct ib_mad_private *recv,
response->mad.mad.mad_hdr.method = IB_MGMT_METHOD_GET_RESP;
response->mad.mad.mad_hdr.status =
cpu_to_be16(IB_MGMT_MAD_STATUS_UNSUPPORTED_METHOD_ATTRIB);
+ if (recv->mad.mad.mad_hdr.mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE)
+ response->mad.mad.mad_hdr.status |= IB_SMP_DIRECTION;
return true;
} else {