Add warning message if you request one max_inline_data value and the

device reduces it.

This commit was SVN r18728.

ompi/mca/btl/openib/connect/btl_openib_connect_ibcm.c

@@ -822,9 +822,15 @@ static int qp_create_one(mca_btl_base_endpoint_t* endpoint, int qp,
         return OMPI_ERROR; 
     }
     endpoint->qps[qp].qp->lcl_qp = my_qp;
-    endpoint->qps[qp].ib_inline_max =
-        init_attr.cap.max_inline_data < req_inline ?
-        init_attr.cap.max_inline_data : req_inline;
+    if (init_attr.cap.max_inline_data < req_inline) {
+        endpoint->qps[qp].ib_inline_max = init_attr.cap.max_inline_data;
+        orte_show_help("help-mpi-btl-openib-cpc-base.txt",
+                       "inline truncated", orte_process_info.nodename,
+                       ibv_get_device_name(openib_btl->hca->ib_dev),
+                       req_inline, init_attr.cap.max_inline_data);
+    } else {
+        endpoint->qps[qp].ib_inline_max = req_inline;
+    }
     /* Setup meta data on the endpoint */
     endpoint->qps[qp].qp->lcl_psn = lrand48() & 0xffffff;
     endpoint->qps[qp].credit_frag = NULL;

ompi/mca/btl/openib/connect/btl_openib_connect_oob.c

@@ -37,6 +37,7 @@
 #include "btl_openib_endpoint.h" 
 #include "btl_openib_proc.h"
 #include "connect/connect.h"
+#include "orte/util/show_help.h"
 
 typedef enum {
     ENDPOINT_CONNECT_REQUEST,
@@ -458,9 +459,16 @@ static int qp_create_one(mca_btl_base_endpoint_t* endpoint, int qp,
         return OMPI_ERROR; 
     }
     endpoint->qps[qp].qp->lcl_qp = my_qp;
-    endpoint->qps[qp].ib_inline_max =
-        init_attr.cap.max_inline_data < req_inline ?
-        init_attr.cap.max_inline_data : req_inline;
+
+    if (init_attr.cap.max_inline_data < req_inline) {
+        endpoint->qps[qp].ib_inline_max = init_attr.cap.max_inline_data;
+        orte_show_help("help-mpi-btl-openib-cpc-base.txt",
+                       "inline truncated", orte_process_info.nodename,
+                       ibv_get_device_name(openib_btl->hca->ib_dev),
+                       req_inline, init_attr.cap.max_inline_data);
+    } else {
+        endpoint->qps[qp].ib_inline_max = req_inline;
+    }
     
     attr.qp_state        = IBV_QPS_INIT;
     attr.pkey_index      = openib_btl->pkey_index;

ompi/mca/btl/openib/connect/btl_openib_connect_rdmacm.c

@@ -37,6 +37,7 @@
 #include "btl_openib_endpoint.h"
 #include "connect/connect.h"
 #include "btl_openib_iwarp.h"
+#include "orte/util/show_help.h"
 
 /* JMS to be removed: see #1264 */
 #undef event
@@ -264,9 +265,15 @@ static int rdmacm_setup_qp(rdmacm_contents_t *local,
     }
 
     endpoint->qps[qpnum].qp->lcl_qp = qp;
-    endpoint->qps[qpnum].ib_inline_max =
-        attr.cap.max_inline_data < req_inline ?
-        attr.cap.max_inline_data : req_inline;
+    if (attr.cap.max_inline_data < req_inline) {
+        endpoint->qps[qpnum].ib_inline_max = attr.cap.max_inline_data;
+        orte_show_help("help-mpi-btl-openib-cpc-base.txt",
+                       "inline truncated", orte_process_info.nodename,
+                       ibv_get_device_name(local->openib_btl->hca->ib_dev),
+                       req_inline, attr.cap.max_inline_data);
+    } else {
+        endpoint->qps[qpnum].ib_inline_max = req_inline;
+    }
     id->qp = qp;
 
     return 0;

ompi/mca/btl/openib/connect/btl_openib_connect_xoob.c

@@ -25,6 +25,7 @@
 #include "btl_openib_xrc.h"
 #include "btl_openib_async.h"
 #include "connect/connect.h"
+#include "orte/util/show_help.h"
 
 static void xoob_component_register(void);
 static int xoob_component_query(mca_btl_openib_module_t *openib_btl, 
@@ -400,14 +401,21 @@ static int xoob_send_qp_create (mca_btl_base_endpoint_t* endpoint)
     qp_init_attr.qp_type = IBV_QPT_XRC;
     qp_init_attr.xrc_domain = openib_btl->hca->xrc_domain;
     *qp = ibv_create_qp(openib_btl->hca->ib_pd, &qp_init_attr);
-    endpoint->qps[0].ib_inline_max =
-        qp_init_attr.cap.max_inline_data < req_inline ?
-        qp_init_attr.cap.max_inline_data : req_inline;
     if (NULL == *qp) {
         BTL_ERROR(("Error creating QP, errno says: %s", strerror(errno)));
         return OMPI_ERROR;
     }
 
+    if (qp_init_attr.cap.max_inline_data < req_inline) {
+        endpoint->qps[0].ib_inline_max = qp_init_attr.cap.max_inline_data;
+        orte_show_help("help-mpi-btl-openib-cpc-base.txt",
+                       "inline truncated", orte_process_info.nodename,
+                       ibv_get_device_name(openib_btl->hca->ib_dev),
+                       req_inline, qp_init_attr.cap.max_inline_data);
+    } else {
+        endpoint->qps[0].ib_inline_max = req_inline;
+    }
+
     attr.qp_state = IBV_QPS_INIT;
     attr.pkey_index = openib_btl->pkey_index;
     attr.port_num = openib_btl->port_num;

ompi/mca/btl/openib/connect/help-mpi-btl-openib-cpc-base.txt

@@ -27,3 +27,14 @@ Host:                         %s
 btl_openib_cpc_%s value: %s
 Invalid name:                 %s
 All possible valid names:     %s
+#
+[inline truncated]
+WARNING: The btl_openib_ib_max_inline_data MCA parameter was used to
+specify how much inline data should be used, but a device reduced this
+value.  This is not an error; it simply means that your run will use
+a smaller inline data value than was requested.
+
+  Local host:           %s
+  Local device:         %s
+  Requested value:      %d
+  Value used by device: %d