[openib-general] [PATCH 2/2] librdmacm: add multicast test program to examples
Sean Hefty
sean.hefty at intel.com
Mon Jun 12 10:43:38 PDT 2006
Simple multicast test program. When run, the client creates a QP
and joins it to a multicast group. It then either sends or receives
messages on the group.
Signed-off-by: Sean Hefty <sean.hefty at intel.com>
---
diff -up svn3/gen2/trunk/src/userspace/librdmacm/librdmacm.spec.in svn/gen2/trunk/src/userspace/librdmacm/librdmacm.spec.in
--- svn3/gen2/trunk/src/userspace/librdmacm/librdmacm.spec.in 2006-06-06 17:35:31.000000000 -0700
+++ svn/gen2/trunk/src/userspace/librdmacm/librdmacm.spec.in 2006-06-01 14:53:47.000000000 -0700
@@ -67,3 +67,4 @@ rm -rf $RPM_BUILD_ROOT
%{_bindir}/rping
%{_bindir}/ucmatose
%{_bindir}/udaddy
+%{_bindir}/mckey
diff -up svn3/gen2/trunk/src/userspace/librdmacm/Makefile.am svn/gen2/trunk/src/userspace/librdmacm/Makefile.am
--- svn3/gen2/trunk/src/userspace/librdmacm/Makefile.am 2006-06-06 17:35:31.000000000 -0700
+++ svn/gen2/trunk/src/userspace/librdmacm/Makefile.am 2006-06-06 14:48:23.000000000 -0700
@@ -18,13 +18,15 @@ endif
src_librdmacm_la_SOURCES = src/cma.c
src_librdmacm_la_LDFLAGS = -avoid-version $(rdmacm_version_script)
-bin_PROGRAMS = examples/ucmatose examples/rping examples/udaddy
+bin_PROGRAMS = examples/ucmatose examples/rping examples/udaddy examples/mckey
examples_ucmatose_SOURCES = examples/cmatose.c
examples_ucmatose_LDADD = $(top_builddir)/src/librdmacm.la
examples_rping_SOURCES = examples/rping.c
examples_rping_LDADD = $(top_builddir)/src/librdmacm.la
examples_udaddy_SOURCES = examples/udaddy.c
examples_udaddy_LDADD = $(top_builddir)/src/librdmacm.la
+examples_mckey_SOURCES = examples/mckey.c
+examples_mckey_LDADD = $(top_builddir)/src/librdmacm.la
librdmacmincludedir = $(includedir)/rdma
diff -upN svn3/gen2/trunk/src/userspace/librdmacm/examples/mckey.c svn/gen2/trunk/src/userspace/librdmacm/examples/mckey.c
--- svn3/gen2/trunk/src/userspace/librdmacm/examples/mckey.c 1969-12-31 16:00:00.000000000 -0800
+++ svn/gen2/trunk/src/userspace/librdmacm/examples/mckey.c 2006-06-06 12:56:35.000000000 -0700
@@ -0,0 +1,505 @@
+/*
+ * Copyright (c) 2005 Intel Corporation. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ * $Id$
+ */
+
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <netinet/in.h>
+#include <sys/socket.h>
+#include <netdb.h>
+#include <byteswap.h>
+#include <unistd.h>
+
+#include <rdma/rdma_cma.h>
+#include <rdma/rdma_cma_ib.h>
+
+struct cmatest_node {
+ int id;
+ struct rdma_cm_id *cma_id;
+ int connected;
+ struct ibv_pd *pd;
+ struct ibv_cq *cq;
+ struct ibv_mr *mr;
+ struct ibv_ah *ah;
+ uint32_t remote_qpn;
+ uint32_t remote_qkey;
+ void *mem;
+};
+
+struct cmatest {
+ struct rdma_event_channel *channel;
+ struct cmatest_node *nodes;
+ int conn_index;
+ int connects_left;
+
+ struct sockaddr_in dst_in;
+ struct sockaddr *dst_addr;
+ struct sockaddr_in src_in;
+ struct sockaddr *src_addr;
+};
+
+static struct cmatest test;
+static int connections = 1;
+static int message_size = 100;
+static int message_count = 10;
+static int is_sender;
+
+static int create_message(struct cmatest_node *node)
+{
+ if (!message_size)
+ message_count = 0;
+
+ if (!message_count)
+ return 0;
+
+ node->mem = malloc(message_size + sizeof(struct ibv_grh));
+ if (!node->mem) {
+ printf("failed message allocation\n");
+ return -1;
+ }
+ node->mr = ibv_reg_mr(node->pd, node->mem,
+ message_size + sizeof(struct ibv_grh),
+ IBV_ACCESS_LOCAL_WRITE);
+ if (!node->mr) {
+ printf("failed to reg MR\n");
+ goto err;
+ }
+ return 0;
+err:
+ free(node->mem);
+ return -1;
+}
+
+static int init_node(struct cmatest_node *node)
+{
+ struct ibv_qp_init_attr init_qp_attr;
+ int cqe, ret;
+
+ node->pd = ibv_alloc_pd(node->cma_id->verbs);
+ if (!node->pd) {
+ ret = -ENOMEM;
+ printf("cmatose: unable to allocate PD\n");
+ goto out;
+ }
+
+ cqe = message_count ? message_count * 2 : 2;
+ node->cq = ibv_create_cq(node->cma_id->verbs, cqe, node, 0, 0);
+ if (!node->cq) {
+ ret = -ENOMEM;
+ printf("cmatose: unable to create CQ\n");
+ goto out;
+ }
+
+ memset(&init_qp_attr, 0, sizeof init_qp_attr);
+ init_qp_attr.cap.max_send_wr = message_count ? message_count : 1;
+ init_qp_attr.cap.max_recv_wr = message_count ? message_count : 1;
+ init_qp_attr.cap.max_send_sge = 1;
+ init_qp_attr.cap.max_recv_sge = 1;
+ init_qp_attr.qp_context = node;
+ init_qp_attr.sq_sig_all = 0;
+ init_qp_attr.qp_type = IBV_QPT_UD;
+ init_qp_attr.send_cq = node->cq;
+ init_qp_attr.recv_cq = node->cq;
+ ret = rdma_create_qp(node->cma_id, node->pd, &init_qp_attr);
+ if (ret) {
+ printf("cmatose: unable to create QP: %d\n", ret);
+ goto out;
+ }
+
+ ret = create_message(node);
+ if (ret) {
+ printf("cmatose: failed to create messages: %d\n", ret);
+ goto out;
+ }
+out:
+ return ret;
+}
+
+static int post_recvs(struct cmatest_node *node)
+{
+ struct ibv_recv_wr recv_wr, *recv_failure;
+ struct ibv_sge sge;
+ int i, ret = 0;
+
+ if (!message_count)
+ return 0;
+
+ recv_wr.next = NULL;
+ recv_wr.sg_list = &sge;
+ recv_wr.num_sge = 1;
+ recv_wr.wr_id = (uintptr_t) node;
+
+ sge.length = message_size + sizeof(struct ibv_grh);
+ sge.lkey = node->mr->lkey;
+ sge.addr = (uintptr_t) node->mem;
+
+ for (i = 0; i < message_count && !ret; i++ ) {
+ ret = ibv_post_recv(node->cma_id->qp, &recv_wr, &recv_failure);
+ if (ret) {
+ printf("failed to post receives: %d\n", ret);
+ break;
+ }
+ }
+ return ret;
+}
+
+static int post_sends(struct cmatest_node *node, int signal_flag)
+{
+ struct ibv_send_wr send_wr, *bad_send_wr;
+ struct ibv_sge sge;
+ int i, ret = 0;
+
+ if (!node->connected || !message_count)
+ return 0;
+
+ send_wr.next = NULL;
+ send_wr.sg_list = &sge;
+ send_wr.num_sge = 1;
+ send_wr.opcode = IBV_WR_SEND_WITH_IMM;
+ send_wr.send_flags = IBV_SEND_INLINE | signal_flag;
+ send_wr.wr_id = (unsigned long)node;
+ send_wr.imm_data = htonl(node->cma_id->qp->qp_num);
+
+ send_wr.wr.ud.ah = node->ah;
+ send_wr.wr.ud.remote_qpn = node->remote_qpn;
+ send_wr.wr.ud.remote_qkey = node->remote_qkey;
+
+ sge.length = message_size - sizeof(struct ibv_grh);
+ sge.lkey = node->mr->lkey;
+ sge.addr = (uintptr_t) node->mem;
+
+ for (i = 0; i < message_count && !ret; i++) {
+ ret = ibv_post_send(node->cma_id->qp, &send_wr, &bad_send_wr);
+ if (ret)
+ printf("failed to post sends: %d\n", ret);
+ }
+ return ret;
+}
+
+static void connect_error(void)
+{
+ test.connects_left--;
+}
+
+static int addr_handler(struct cmatest_node *node)
+{
+ int ret;
+
+ ret = init_node(node);
+ if (ret)
+ goto err;
+
+ if (!is_sender) {
+ ret = post_recvs(node);
+ if (ret)
+ goto err;
+ }
+
+ ret = rdma_join_multicast(node->cma_id, test.dst_addr, node);
+ if (ret) {
+ printf("cmatose: failure joining: %d\n", ret);
+ goto err;
+ }
+ return 0;
+err:
+ connect_error();
+ return ret;
+}
+
+static int join_handler(struct cmatest_node *node)
+{
+ struct ibv_ah_attr ah_attr;
+ int ret;
+
+ ret = rdma_get_dst_attr(node->cma_id, test.dst_addr, &ah_attr,
+ &node->remote_qpn, &node->remote_qkey);
+ if (ret) {
+ printf("mckey: failure getting destination attributes\n");
+ goto err;
+ }
+
+ node->ah = ibv_create_ah(node->pd, &ah_attr);
+ if (!node->ah) {
+ printf("mckey: failure creating address handle\n");
+ goto err;
+ }
+
+ node->connected = 1;
+ test.connects_left--;
+ return 0;
+err:
+ connect_error();
+ return ret;
+}
+
+static int cma_handler(struct rdma_cm_id *cma_id, struct rdma_cm_event *event)
+{
+ int ret = 0;
+
+ switch (event->event) {
+ case RDMA_CM_EVENT_ADDR_RESOLVED:
+ ret = addr_handler(cma_id->context);
+ break;
+ case RDMA_CM_EVENT_MULTICAST_JOIN:
+ ret = join_handler(cma_id->context);
+ break;
+ case RDMA_CM_EVENT_ADDR_ERROR:
+ case RDMA_CM_EVENT_ROUTE_ERROR:
+ case RDMA_CM_EVENT_MULTICAST_ERROR:
+ printf("cmatose: event: %d, error: %d\n", event->event,
+ event->status);
+ connect_error();
+ ret = event->status;
+ break;
+ case RDMA_CM_EVENT_DEVICE_REMOVAL:
+ /* Cleanup will occur after test completes. */
+ break;
+ default:
+ break;
+ }
+ return ret;
+}
+
+static void destroy_node(struct cmatest_node *node)
+{
+ if (!node->cma_id)
+ return;
+
+ if (node->ah)
+ ibv_destroy_ah(node->ah);
+
+ if (node->cma_id->qp)
+ rdma_destroy_qp(node->cma_id);
+
+ if (node->cq)
+ ibv_destroy_cq(node->cq);
+
+ if (node->mem) {
+ ibv_dereg_mr(node->mr);
+ free(node->mem);
+ }
+
+ if (node->pd)
+ ibv_dealloc_pd(node->pd);
+
+ /* Destroy the RDMA ID after all device resources */
+ rdma_destroy_id(node->cma_id);
+}
+
+static int alloc_nodes(void)
+{
+ int ret, i;
+
+ test.nodes = malloc(sizeof *test.nodes * connections);
+ if (!test.nodes) {
+ printf("cmatose: unable to allocate memory for test nodes\n");
+ return -ENOMEM;
+ }
+ memset(test.nodes, 0, sizeof *test.nodes * connections);
+
+ for (i = 0; i < connections; i++) {
+ test.nodes[i].id = i;
+ ret = rdma_create_id(test.channel, &test.nodes[i].cma_id,
+ &test.nodes[i], RDMA_PS_UDP);
+ if (ret)
+ goto err;
+ }
+ return 0;
+err:
+ while (--i >= 0)
+ rdma_destroy_id(test.nodes[i].cma_id);
+ free(test.nodes);
+ return ret;
+}
+
+static void destroy_nodes(void)
+{
+ int i;
+
+ for (i = 0; i < connections; i++)
+ destroy_node(&test.nodes[i]);
+ free(test.nodes);
+}
+
+static int poll_cqs(void)
+{
+ struct ibv_wc wc[8];
+ int done, i, ret;
+
+ for (i = 0; i < connections; i++) {
+ if (!test.nodes[i].connected)
+ continue;
+
+ for (done = 0; done < message_count; done += ret) {
+ ret = ibv_poll_cq(test.nodes[i].cq, 8, wc);
+ if (ret < 0) {
+ printf("cmatose: failed polling CQ: %d\n", ret);
+ return ret;
+ }
+ }
+ }
+ return 0;
+}
+
+static int connect_events(void)
+{
+ struct rdma_cm_event *event;
+ int ret = 0;
+
+ while (test.connects_left && !ret) {
+ ret = rdma_get_cm_event(test.channel, &event);
+ if (!ret) {
+ ret = cma_handler(event->id, event);
+ rdma_ack_cm_event(event);
+ }
+ }
+ return ret;
+}
+
+static int get_addr(char *dst, struct sockaddr_in *addr)
+{
+ struct addrinfo *res;
+ int ret;
+
+ ret = getaddrinfo(dst, NULL, NULL, &res);
+ if (ret) {
+ printf("getaddrinfo failed - invalid hostname or IP address\n");
+ return ret;
+ }
+
+ if (res->ai_family != PF_INET) {
+ ret = -1;
+ goto out;
+ }
+
+ *addr = *(struct sockaddr_in *) res->ai_addr;
+out:
+ freeaddrinfo(res);
+ return ret;
+}
+
+static int run(char *dst, char *src)
+{
+ int i, ret;
+
+ printf("cmatose: starting client\n");
+ if (src) {
+ ret = get_addr(src, &test.src_in);
+ if (ret)
+ return ret;
+ }
+
+ ret = get_addr(dst, &test.dst_in);
+ if (ret)
+ return ret;
+
+ test.dst_in.sin_port = 7174;
+
+ printf("cmatose: joining\n");
+ for (i = 0; i < connections; i++) {
+ ret = rdma_resolve_addr(test.nodes[i].cma_id,
+ src ? test.src_addr : NULL,
+ test.dst_addr, 2000);
+ if (ret) {
+ printf("cmatose: failure getting addr: %d\n", ret);
+ connect_error();
+ return ret;
+ }
+ }
+
+ ret = connect_events();
+ if (ret)
+ goto out;
+
+ /*
+ * Pause to give SM chance to configure switches. We don't want to
+ * handle reliability issue in this simple test program.
+ */
+ sleep(3);
+
+ if (message_count) {
+ if (is_sender) {
+ printf("initiating data transfers\n");
+ for (i = 0; i < connections; i++) {
+ ret = post_sends(&test.nodes[i], 0);
+ if (ret)
+ goto out;
+ }
+ } else {
+ printf("receiving data transfers\n");
+ ret = poll_cqs();
+ if (ret)
+ goto out;
+ }
+ printf("data transfers complete\n");
+ }
+out:
+ return ret;
+}
+
+int main(int argc, char **argv)
+{
+ int ret;
+
+ if (argc < 3 || argc > 4) {
+ printf("usage: %s {s[end] | r[ecv]} mcast_addr [bind_addr]]\n",
+ argv[0]);
+ exit(1);
+ }
+ is_sender = (argv[1][0] == 's');
+
+ test.dst_addr = (struct sockaddr *) &test.dst_in;
+ test.src_addr = (struct sockaddr *) &test.src_in;
+ test.connects_left = connections;
+
+ test.channel = rdma_create_event_channel();
+ if (!test.channel) {
+ printf("failed to create event channel\n");
+ exit(1);
+ }
+
+ if (alloc_nodes())
+ exit(1);
+
+ ret = run(argv[2], (argc == 4) ? argv[3] : NULL);
+
+ printf("test complete\n");
+ destroy_nodes();
+ rdma_destroy_event_channel(test.channel);
+
+ printf("return status %d\n", ret);
+ return ret;
+}
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