[v2.5.x]prov/efa: Skip dmabuf supported check for explicit mr call

Currently, efa caches whether or not dmabuf fd memory registration works
or not for both the explicit and implicit memory registration paths. This
patch changes it so that the explicit path does not set any flags, in favor
of just attempting the memory registration every time the caller asks.

Signed-off-by: Charles Stoll <stollcha@amazon.com>
(cherry picked from commit 6ca213f)

Author: charlesstoll

prov/efa/src/efa_mr.c

@@ -631,12 +631,6 @@ static struct ibv_mr *efa_mr_reg_ibv_mr(struct efa_mr *efa_mr,
 			EFA_WARN(FI_LOG_MR, "FI_MR_DMABUF set but mr_attr->dmabuf == NULL\n");
 			return NULL;
 		}
-		if (DMABUF_IS_NOT_SUPPORTED(p_info)) {
-			EFA_WARN(FI_LOG_MR,
-				 "Requested FI_MR_DMABUF, but dmabuf not supported for %s\n",
-				 fi_tostr(&efa_mr->peer.iface, FI_TYPE_HMEM_IFACE));
-			return NULL;
-		}
 
 		EFA_INFO(FI_LOG_MR,
 			 "FI_MR_DMABUF: fd=%d offset=%lu len=%zu\n",
@@ -651,11 +645,11 @@ static struct ibv_mr *efa_mr_reg_ibv_mr(struct efa_mr *efa_mr,
 			mr_attr->dmabuf->fd,
 			access);
 
-		if (!dmabuf_mr)  {
-			efa_mark_dmabuf_fail(p_info, efa_mr->peer.iface);
-		} else {
-			p_info->dmabuf_supported_by_device = EFA_DMABUF_SUPPORTED;
-		}
+		if (!dmabuf_mr)
+			EFA_WARN(FI_LOG_MR,
+				 "Could not register dmabuf fd=%d offset=%lu len=%zu\n",
+				 mr_attr->dmabuf->fd, mr_attr->dmabuf->offset,
+				 mr_attr->dmabuf->len);
 
 		return dmabuf_mr;
 	}