RDMA/cxgb3: Set the max_qp_init_rd_atom attribute in query_device

The device attribute max_qp_init_rd_atom is not getting set in cxgb3's
query_device method.  Version 1.0.4 of librdmacm now validates the
user's requested initiator and responder resources against the max
supported by the device.  Since iw_cxgb3 wasn't setting this attribute
(and it defaulted to 0), all rdma_connect()s fail if there are
initiator resources requested by the app.  Fix this by setting the
correct value in iwch_query_device().
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

drivers/infiniband/hw/cxgb3/iwch_provider.c

@@ -1000,6 +1000,7 @@ static int iwch_query_device(struct ib_device *ibdev,
 	props->max_sge = dev->attr.max_sge_per_wr;
 	props->max_sge_rd = 1;
 	props->max_qp_rd_atom = dev->attr.max_rdma_reads_per_qp;
+	props->max_qp_init_rd_atom = dev->attr.max_rdma_reads_per_qp;
 	props->max_cq = dev->attr.max_cqs;
 	props->max_cqe = dev->attr.max_cqes_per_cq;
 	props->max_mr = dev->attr.max_mem_regs;