dapl: cma provider needs to support lower inline send default for iWARP

IB and iWARP work best with different defaults. Add transport check
and set default accordingly. 64 for iWARP, 200 for IB.

DAPL_MAX_INLINE environment variable is still used to override.

Signed-off by: Arlin Davis ardavis@ichips.intel.com

diff --git a/dapl/openib_cma/dapl_ib_util.c b/dapl/openib_cma/dapl_ib_util.c
index 56c0a05cd7bdc7b7125cb91d7cc092194a7352c2..4de5a2c99033b5229e1addf3f4d965d5cddf42bb 100755 (executable)
--- a/dapl/openib_cma/dapl_ib_util.c
+++ b/dapl/openib_cma/dapl_ib_util.c
@@ -274,8 +274,15 @@ DAT_RETURN dapls_ib_open_hca(IN IB_HCA_NAME hca_name, IN DAPL_HCA *hca_ptr)
                (unsigned long long)bswap_64(gid->global.interface_id));
 
        /* set inline max with env or default, get local lid and gid 0 */
-       hca_ptr->ib_trans.max_inline_send = 
-               dapl_os_get_env_val("DAPL_MAX_INLINE", INLINE_SEND_DEFAULT);
+       if (hca_ptr->ib_hca_handle->device->transport_type
+                                       == IBV_TRANSPORT_IWARP)
+               hca_ptr->ib_trans.max_inline_send =
+                       dapl_os_get_env_val("DAPL_MAX_INLINE",
+                                           INLINE_SEND_IWARP_DEFAULT);
+       else
+               hca_ptr->ib_trans.max_inline_send =
+                       dapl_os_get_env_val("DAPL_MAX_INLINE",
+                                           INLINE_SEND_IB_DEFAULT);
 
        /* set CM timer defaults */     
        hca_ptr->ib_trans.max_cm_timeout =

diff --git a/dapl/openib_cma/dapl_ib_util.h b/dapl/openib_cma/dapl_ib_util.h
index 93f4fdebba4a42d6fbc9ccabd100cd11c18dd2d6..1e464b242912e53ec2cb35549e1a8359eb79a782 100755 (executable)
--- a/dapl/openib_cma/dapl_ib_util.h
+++ b/dapl/openib_cma/dapl_ib_util.h
@@ -122,7 +122,8 @@ typedef struct _ib_wait_obj_handle
 #define IB_INVALID_HANDLE      NULL
 
 /* inline send rdma threshold */
-#define        INLINE_SEND_DEFAULT     128
+#define        INLINE_SEND_IWARP_DEFAULT       64
+#define        INLINE_SEND_IB_DEFAULT          200
 
 /* CM private data areas */
 #define        IB_MAX_REQ_PDATA_SIZE   48