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-rw-r--r--kiro-client.c256
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diff --git a/kiro-client.c b/kiro-client.c
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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-client
- * @Short_description: KIRO RDMA Client / Consumer
- * @Title: KiroClient
- *
- * KiroClient implements the client / active / consumer side of the the RDMA
- * Communication Channel. It uses a KIRO-CLIENT to manage data read from the Server.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <fcntl.h>
-#include <rdma/rdma_verbs.h>
-#include <glib.h>
-#include "kiro-client.h"
-#include "kiro-rdma.h"
-#include "kiro-trb.h"
-
-#include <errno.h>
-
-
-/*
- * Definition of 'private' structures and members and macro to access them
- */
-
-#define KIRO_CLIENT_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE((obj), KIRO_TYPE_CLIENT, KiroClientPrivate))
-
-struct _KiroClientPrivate {
-
- /* Properties */
- // PLACEHOLDER //
-
- /* 'Real' private structures */
- /* (Not accessible by properties) */
- struct rdma_event_channel *ec; // Main Event Channel
- struct rdma_cm_id *conn; // Connection to the Server
-
-};
-
-
-G_DEFINE_TYPE_WITH_PRIVATE (KiroClient, kiro_client, G_TYPE_OBJECT);
-
-
-static void kiro_client_init (KiroClient *self)
-{
- KiroClientPrivate *priv = KIRO_CLIENT_GET_PRIVATE(self);
- memset(priv, 0, sizeof(&priv));
-}
-
-static void
-kiro_client_finalize (GObject *object)
-{
- //KiroClient *self = KIRO_CLIENT(object);
- //KiroClientPrivate * priv = KIRO_CLIENT_GET_PRIVATE(self);
- //PASS
-}
-
-static void
-kiro_client_class_init (KiroClientClass *klass)
-{
- GObjectClass *gobject_class = G_OBJECT_CLASS(klass);
- gobject_class->finalize = kiro_client_finalize;
-}
-
-
-
-int kiro_client_connect (KiroClient *self, char *address, char* port)
-{
- KiroClientPrivate *priv = KIRO_CLIENT_GET_PRIVATE(self);
-
- if(priv->conn)
- {
- printf("Already connected to server.\n");
- return -1;
- }
-
- struct rdma_addrinfo hints, *res_addrinfo;
- memset(&hints, 0, sizeof(hints));
- hints.ai_port_space = RDMA_PS_IB;
- if(rdma_getaddrinfo(address, port, &hints, &res_addrinfo))
- {
- printf("Failed to contruct address information for %s:%s\n",address, port);
- return -1;
- }
- printf("Address information created.\n");
-
- 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->conn;
- qp_attr.sq_sig_all = 1;
-
- if(rdma_create_ep(&(priv->conn), res_addrinfo, NULL, &qp_attr))
- {
- printf("Endpoint creation failed with error: %i\n", errno);
- return -1;
- }
- printf("Route to server resolved.\n");
-
- 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->conn);
- 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->conn);
- return -1;
- }
-
- ctx->cf_mr_recv = kiro_create_rdma_memory(priv->conn->pd, sizeof(struct kiro_ctrl_msg), IBV_ACCESS_LOCAL_WRITE);
- ctx->cf_mr_send = kiro_create_rdma_memory(priv->conn->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->conn);
- return -1;
- }
- ctx->cf_mr_recv->size = ctx->cf_mr_send->size = sizeof(struct kiro_ctrl_msg);
- priv->conn->context = ctx;
-
- if(rdma_post_recv(priv->conn, priv->conn, ctx->cf_mr_recv->mem, ctx->cf_mr_recv->size, ctx->cf_mr_recv->mr))
- {
- printf("Posting preemtive receive for connection failed with error: %i\n", errno);
- kiro_destroy_connection_context(&ctx);
- rdma_destroy_ep(priv->conn);
- return -1;
- }
-
- if(rdma_connect(priv->conn, NULL))
- {
- printf("Failed to establish connection to the server.\n");
- kiro_destroy_connection_context(&ctx);
- rdma_destroy_ep(priv->conn);
- return -1;
- }
- printf("Connected to server.\n");
-
-
- struct ibv_wc wc;
- if(rdma_get_recv_comp(priv->conn, &wc) < 0)
- {
- printf("Failure waiting for POST from server.\n");
- rdma_disconnect(priv->conn);
- kiro_destroy_connection_context(&ctx);
- rdma_destroy_ep(priv->conn);
- return -1;
- }
- printf("Got Message from Server.\n");
- ctx->peer_mr = (((struct kiro_ctrl_msg *)(ctx->cf_mr_recv->mem))->peer_mri);
- printf("Expected Memory Size is: %u\n",ctx->peer_mr.length);
-
- ctx->rdma_mr = kiro_create_rdma_memory(priv->conn->pd, ctx->peer_mr.length, IBV_ACCESS_LOCAL_WRITE);
- if(!ctx->rdma_mr)
- {
- printf("Failed to allocate memory for receive buffer.\n");
- rdma_disconnect(priv->conn);
- kiro_destroy_connection_context(&ctx);
- rdma_destroy_ep(priv->conn);
- return -1;
- }
- printf("Connection setup completed successfully!\n");
-
- return 0;
-}
-
-
-
-int kiro_client_sync (KiroClient *self)
-{
- KiroClientPrivate *priv = KIRO_CLIENT_GET_PRIVATE(self);
- struct kiro_connection_context *ctx = (struct kiro_connection_context *)priv->conn->context;
-
- if(rdma_post_read(priv->conn, priv->conn, ctx->rdma_mr->mem, ctx->peer_mr.length, ctx->rdma_mr->mr, 0, ctx->peer_mr.addr, ctx->peer_mr.rkey))
- {
- printf("Failed to read from server.\n");
- rdma_disconnect(priv->conn);
- kiro_destroy_connection_context(&ctx);
- rdma_destroy_ep(priv->conn);
- return -1;
- }
-
- struct ibv_wc wc;
- if(rdma_get_send_comp(priv->conn, &wc) < 0)
- {
- printf("Failure reading from server.\n");
- rdma_disconnect(priv->conn);
- kiro_destroy_connection_context(&ctx);
- rdma_destroy_ep(priv->conn);
- return -1;
- }
- return 0;
-}
-
-
-void* kiro_client_get_memory (KiroClient *self)
-{
- KiroClientPrivate *priv = KIRO_CLIENT_GET_PRIVATE(self);
- if(!priv->conn)
- return NULL;
-
- struct kiro_connection_context *ctx = (struct kiro_connection_context *)priv->conn->context;
- if(!ctx->rdma_mr)
- return NULL;
-
- return ctx->rdma_mr->mem;
-}
-
-
-size_t kiro_client_get_memory_size (KiroClient *self)
-{
- KiroClientPrivate *priv = KIRO_CLIENT_GET_PRIVATE(self);
- if(!priv->conn)
- return 0;
-
- struct kiro_connection_context *ctx = (struct kiro_connection_context *)priv->conn->context;
- if(!ctx->rdma_mr)
- return 0;
-
- return ctx->rdma_mr->size;
-}
-
-
-
-
-
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-11 09:31:35 +0000