Commit 0b307043 authored by Swapna Thete's avatar Swapna Thete Committed by Roland Dreier

IB/mad: Return error response for unsupported MADs

Set up a response with appropriate error status and send it for MADs
that are not supported by a specific class/version.
Reviewed-by: default avatarHal Rosenstock <hal@mellanox.com>
Signed-off-by: default avatarSwapna Thete <swapna.thete@qlogic.com>
Signed-off-by: default avatarRoland Dreier <roland@purestorage.com>
parent d144b650
......@@ -1842,6 +1842,24 @@ static void ib_mad_complete_recv(struct ib_mad_agent_private *mad_agent_priv,
}
}
static bool generate_unmatched_resp(struct ib_mad_private *recv,
struct ib_mad_private *response)
{
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 =
cpu_to_be16(IB_MGMT_MAD_STATUS_UNSUPPORTED_METHOD_ATTRIB);
return true;
} else {
return false;
}
}
static void ib_mad_recv_done_handler(struct ib_mad_port_private *port_priv,
struct ib_wc *wc)
{
......@@ -1963,6 +1981,9 @@ static void ib_mad_recv_done_handler(struct ib_mad_port_private *port_priv,
* 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:
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment