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+/* Copyright (C) 2014 Timo Dritschler <timo.dritschler@kit.edu>
+ (Karlsruhe Institute of Technology)
+
+ This library is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by the
+ Free Software Foundation; either version 2.1 of the License, or (at your
+ option) any later version.
+
+ This library is distributed in the hope that it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
+ details.
+
+ You should have received a copy of the GNU Lesser General Public License along
+ with this library; if not, write to the Free Software Foundation, Inc., 51
+ Franklin St, Fifth Floor, Boston, MA 02110, USA
+*/
+
+/**
+ * SECTION: kiro-server
+ * @Short_description: KIRO RDMA Server / Consumer
+ * @Title: KiroServer
+ *
+ * KiroServer implements the server / passive / provider side of the the RDMA
+ * Communication Channel. It uses a KIRO-TRB to manage its data.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <fcntl.h>
+#include <rdma/rdma_verbs.h>
+#include <glib.h>
+#include "kiro-server.h"
+#include "kiro-rdma.h"
+
+
+/*
+ * Definition of 'private' structures and members and macro to access them
+ */
+
+#define KIRO_SERVER_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE((obj), KIRO_TYPE_SERVER, KiroServerPrivate))
+
+struct _KiroServerPrivate {
+
+ /* Properties */
+ // PLACEHOLDER //
+
+ /* 'Real' private structures */
+ /* (Not accessible by properties) */
+ struct rdma_event_channel *ec; // Main Event Channel
+ struct rdma_cm_id *base; // Base-Listening-Connection
+ struct kiro_connection *client; // Connection to the client
+
+
+};
+
+
+G_DEFINE_TYPE_WITH_PRIVATE (KiroServer, kiro_server, G_TYPE_OBJECT);
+
+
+static void kiro_server_init (KiroServer *self)
+{
+ KiroServerPrivate *priv = KIRO_SERVER_GET_PRIVATE(self);
+ memset(priv, 0, sizeof(&priv));
+}
+
+static void
+kiro_server_finalize (GObject *object)
+{
+ //PASS
+}
+
+static void
+kiro_server_class_init (KiroServerClass *klass)
+{
+ GObjectClass *gobject_class = G_OBJECT_CLASS(klass);
+ gobject_class->finalize = kiro_server_finalize;
+}
+
+
+
+int kiro_server_start (KiroServer *self, char *address, char *port)
+{
+ KiroServerPrivate *priv = KIRO_SERVER_GET_PRIVATE(self);
+
+ if(priv->base)
+ {
+ printf("Server already started.\n");
+ return -1;
+ }
+
+ struct rdma_addrinfo hints, *res_addrinfo;
+ memset(&hints, 0, sizeof(hints));
+ hints.ai_port_space = RDMA_PS_IB;
+ hints.ai_flags = RAI_PASSIVE;
+ if(rdma_getaddrinfo(address, port, &hints, &res_addrinfo))
+ {
+ printf("Failed to bind to address %s:%s\n",address, port);
+ return -1;
+ }
+
+ struct ibv_qp_init_attr qp_attr;
+ memset(&qp_attr, 0, sizeof(qp_attr));
+ qp_attr.cap.max_send_wr = 10;
+ qp_attr.cap.max_recv_wr = 10;
+ qp_attr.cap.max_send_sge = 1;
+ qp_attr.cap.max_recv_sge = 1;
+ qp_attr.qp_context = priv->base;
+ qp_attr.sq_sig_all = 1;
+
+ if(rdma_create_ep(&(priv->base), res_addrinfo, NULL, &qp_attr))
+ {
+ printf("Endpoint creation failed.\n");
+ return -1;
+ }
+
+ if(rdma_listen(priv->base, NULL))
+ {
+ printf("Failed to put server into listening state.\n");
+ rdma_destroy_ep(priv->base);
+ return -1;
+ }
+
+ priv->client = (struct kiro_connection *)calloc(1, sizeof(struct kiro_connection));
+ if(!priv->client)
+ {
+ printf("Failed to create container for client connection.\n");
+ rdma_destroy_ep(priv->base);
+ return -1;
+ }
+ priv->client->identifier = 0; //First Client
+
+ if(rdma_get_request(priv->base, &(priv->client->id)))
+ {
+ printf("Failure waiting for clienet connection.\n");
+ rdma_destroy_ep(priv->base);
+ return -1;
+ }
+
+ struct kiro_connection_context *ctx = (struct kiro_connection_context *)calloc(1,sizeof(struct kiro_connection_context));
+ if(!ctx)
+ {
+ printf("Failed to create connection context.\n");
+ rdma_destroy_ep(priv->base);
+ rdma_destroy_ep(priv->client->id);
+ free(priv->client);
+ return -1;
+ }
+
+ ctx->cf_mr_send = (struct kiro_rdma_mem *)calloc(1, sizeof(struct kiro_rdma_mem));
+ ctx->cf_mr_recv = (struct kiro_rdma_mem *)calloc(1, sizeof(struct kiro_rdma_mem));
+ if(!ctx->cf_mr_recv || !ctx->cf_mr_send)
+ {
+ printf("Failed to allocate Control Flow Memory Container.\n");
+ kiro_destroy_connection_context(ctx);
+ rdma_destroy_ep(priv->base);
+ rdma_destroy_ep(priv->client->id);
+ free(priv->client);
+ return -1;
+ }
+
+ ctx->cf_mr_recv = kiro_create_rdma_memory(priv->client->id->pd, sizeof(struct kiro_ctrl_msg), IBV_ACCESS_LOCAL_WRITE);
+ ctx->cf_mr_send = kiro_create_rdma_memory(priv->client->id->pd, sizeof(struct kiro_ctrl_msg), IBV_ACCESS_LOCAL_WRITE);
+ if(!ctx->cf_mr_recv || !ctx->cf_mr_send)
+ {
+ printf("Failed to register control message memory.\n");
+ kiro_destroy_connection_context(ctx);
+ rdma_destroy_ep(priv->base);
+ rdma_destroy_ep(priv->client->id);
+ free(priv->client);
+ return -1;
+ }
+ ctx->cf_mr_recv->size = ctx->cf_mr_send->size = sizeof(struct kiro_ctrl_msg);
+ priv->client->id->context = ctx;
+
+ if(!rdma_post_recv(priv->client->id, priv->client, ctx->cf_mr_recv->mem, ctx->cf_mr_recv->size, ctx->cf_mr_recv->mr))
+ {
+ printf("Posting preemtive receive for connection failed.\n");
+ kiro_destroy_connection_context(ctx);
+ rdma_destroy_ep(priv->base);
+ rdma_destroy_ep(priv->client->id);
+ free(priv->client);
+ return -1;
+ }
+
+ if(rdma_accept(priv->client->id, NULL))
+ {
+ printf("Failed to establish connection to the server.\n");
+ kiro_destroy_connection_context(ctx);
+ rdma_destroy_ep(priv->base);
+ rdma_destroy_ep(priv->client->id);
+ free(priv->client);
+ return -1;
+ }
+
+ priv->ec = rdma_create_event_channel();
+ int oldflags = fcntl (priv->ec->fd, F_GETFL, 0);
+ /* Only change the FD Mode if we were able to get its flags */
+ if (oldflags >= 0) {
+ oldflags |= O_NONBLOCK;
+ /* Store modified flag word in the descriptor. */
+ fcntl (priv->ec->fd, F_SETFL, oldflags);
+ }
+ if(rdma_migrate_id(priv->base, priv->ec))
+ {
+ printf("Was unable to migrate connection to new Event Channel.\n");
+ rdma_disconnect(priv->client->id);
+ kiro_destroy_connection_context(ctx);
+ rdma_destroy_ep(priv->base);
+ rdma_destroy_ep(priv->client->id);
+ free(priv->client);
+ return -1;
+ }
+
+ //ToDo:
+ //Create TRB, request RDMA from Server, call kiro_server_sync, ???, Profit!
+
+
+ printf("Client Connected.\n");
+ return 0;
+
+}
+
+
+
+int kiro_server_sync (KiroServer *self)
+{
+ //PASS
+ return 0;
+}
+
+
+
+
+
+
+
+
+
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-21 15:31:54 +0000