Setup a response with appropriate error status and send it for the MADs that are not supported by a specific class/version.
Reviewed-by: Hal Rosenstock <[email protected]> Signed-off-by: Swapna Thete <[email protected]> --- drivers/infiniband/core/mad.c | 22 ++++++++++++++++++++++ 1 files changed, 22 insertions(+), 0 deletions(-) diff --git a/drivers/infiniband/core/mad.c b/drivers/infiniband/core/mad.c index 2fe428b..c1c7617 100644 --- a/drivers/infiniband/core/mad.c +++ b/drivers/infiniband/core/mad.c @@ -1842,6 +1842,25 @@ static void ib_mad_complete_recv(struct ib_mad_agent_private *mad_agent_priv, } } +static int generate_unmatched_resp(struct ib_mad_private *recv, + struct ib_mad_private *response) +{ + int matched = 0; + + if ((recv->mad.mad.mad_hdr.method == IB_MGMT_METHOD_GET) || + (recv->mad.mad.mad_hdr.method == IB_MGMT_METHOD_SET)) { + memcpy(response, recv, sizeof(*response)); + response->header.recv_wc.wc = &response->header.wc; + response->header.recv_wc.recv_buf.mad = &response->mad.mad; + response->header.recv_wc.recv_buf.grh = &response->grh; + response->mad.mad.mad_hdr.method = IB_MGMT_METHOD_GET_RESP; + response->mad.mad.mad_hdr.status = + __be16_to_cpu(IB_MGMT_MAD_STATUS_UNSUPPORTED_METHOD_ATTRIB); + matched = 1; + } + + return matched; +} static void ib_mad_recv_done_handler(struct ib_mad_port_private *port_priv, struct ib_wc *wc) { @@ -1963,6 +1982,9 @@ local: * or via recv_handler in ib_mad_complete_recv() */ recv = NULL; + } else if (generate_unmatched_resp(recv, response)) { + agent_send_response(&response->mad.mad, &recv->grh, wc, + port_priv->device, port_num, qp_info->qp->qp_num); } out: -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
