rdma: api: prepare support for direct verb

Prepare rdma interface creation API for direct verb support:
 - add new optional 'mode' parameters to select between ibverb or direct
   verb backend (optional, default to 'auto')
 - set default value for rxq_num (1), rxq_size (1024) and txq_size
   (1024) so they are now optional
 - bump default create value for rxq_size and txq_size to 1024 if
   unset (0) so they are coherent with default values above

Type: feature

Change-Id: Id9eae2b8eb0baaf34a0fcd55da6ad09515f57a93
Signed-off-by: Benoît Ganne <bganne@cisco.com>

1 files changed, 16 insertions, 0 deletions

diff --git a/src/plugins/rdma/api.c b/src/plugins/rdma/api.c
index cd3c36065f2..fe1103f99fe 100644
--- a/src/plugins/rdma/api.c
+++ b/src/plugins/rdma/api.c
@@ -29,6 +29,21 @@
 
 #include <vlibapi/api_helper_macros.h>
 
+static rdma_mode_t
+rdma_api_mode (vl_api_rdma_mode_t mode)
+{
+  switch (mode)
+    {
+    case RDMA_API_MODE_AUTO:
+      return RDMA_MODE_AUTO;
+    case RDMA_API_MODE_IBV:
+      return RDMA_MODE_IBV;
+    case RDMA_API_MODE_DV:
+      return RDMA_MODE_DV;
+    }
+  return RDMA_MODE_AUTO;
+}
+
 static void
 vl_api_rdma_create_t_handler (vl_api_rdma_create_t * mp)
 {
@@ -45,6 +60,7 @@ vl_api_rdma_create_t_handler (vl_api_rdma_create_t * mp)
   args.rxq_num = ntohs (mp->rxq_num);
   args.rxq_size = ntohs (mp->rxq_size);
   args.txq_size = ntohs (mp->txq_size);
+  args.mode = rdma_api_mode (mp->mode);
 
   rdma_create_if (vm, &args);
   rv = args.rv;