[ofw] [PATCH 7/11] librdmacm: add rdma_getaddrinfo
Hefty, Sean
sean.hefty at intel.com
Mon Aug 16 16:20:49 PDT 2010
Add a call similar to getaddrinfo for RDMA devices.
From: Sean Hefty <sean.hefty at intel.com>
---
trunk/ulp/librdmacm/include/rdma/rdma_cma.h | 31 ++++
trunk/ulp/librdmacm/src/Sources | 3
trunk/ulp/librdmacm/src/addrinfo.cpp | 211 +++++++++++++++++++++++++++
trunk/ulp/librdmacm/src/cma_exports.src | 2
4 files changed, 246 insertions(+), 1 deletions(-)
create mode 100644 trunk/ulp/librdmacm/src/addrinfo.cpp
diff --git a/trunk/ulp/librdmacm/include/rdma/rdma_cma.h b/trunk/ulp/librdmacm/include/rdma/rdma_cma.h
index 294a75b..b4cda67 100644
--- a/trunk/ulp/librdmacm/include/rdma/rdma_cma.h
+++ b/trunk/ulp/librdmacm/include/rdma/rdma_cma.h
@@ -188,6 +188,26 @@ struct rdma_cm_event
} param;
};
+#define RAI_PASSIVE 0x00000001
+
+struct rdma_addrinfo {
+ int ai_flags;
+ int ai_family;
+ int ai_qp_type;
+ int ai_port_space;
+ socklen_t ai_src_len;
+ socklen_t ai_dst_len;
+ struct sockaddr *ai_src_addr;
+ struct sockaddr *ai_dst_addr;
+ char *ai_src_canonname;
+ char *ai_dst_canonname;
+ size_t ai_route_len;
+ void *ai_route;
+ size_t ai_connect_len;
+ void *ai_connect;
+ struct rdma_addrinfo *ai_next;
+};
+
/**
* rdma_create_event_channel - Open a channel used to report communication events.
* Description:
@@ -639,6 +659,17 @@ int rdma_set_option(struct rdma_cm_id *id, int level, int optname,
__declspec(dllexport)
int rdma_migrate_id(struct rdma_cm_id *id, struct rdma_event_channel *channel);
+/**
+ * rdma_getaddrinfo - RDMA address and route resolution service.
+ */
+__declspec(dllexport)
+int rdma_getaddrinfo(char *node, char *service,
+ struct rdma_addrinfo *hints,
+ struct rdma_addrinfo **res);
+
+__declspec(dllexport)
+void rdma_freeaddrinfo(struct rdma_addrinfo *res);
+
__declspec(dllexport)
int rdmaw_wsa_errno(int wsa_err);
diff --git a/trunk/ulp/librdmacm/src/Sources b/trunk/ulp/librdmacm/src/Sources
index 6a8418a..4934f04 100644
--- a/trunk/ulp/librdmacm/src/Sources
+++ b/trunk/ulp/librdmacm/src/Sources
@@ -19,7 +19,8 @@ USE_MSVCRT = 1
SOURCES = \
cma.rc \
cma_main.cpp \
- cma.cpp
+ cma.cpp \
+ addrinfo.cpp
INCLUDES = ..\include;..\..\..\inc;..\..\..\inc\user;..\..\libibverbs\include;\
..\..\..\inc\user\linux;
diff --git a/trunk/ulp/librdmacm/src/addrinfo.cpp b/trunk/ulp/librdmacm/src/addrinfo.cpp
new file mode 100644
index 0000000..b9642fe
--- /dev/null
+++ b/trunk/ulp/librdmacm/src/addrinfo.cpp
@@ -0,0 +1,211 @@
+/*
+ * Copyright (c) 2010 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.
+ */
+
+#if HAVE_CONFIG_H
+# include <config.h>
+#endif /* HAVE_CONFIG_H */
+
+#include <windows.h>
+#include <winsock2.h>
+
+#include "cma.h"
+#include <rdma/rdma_cma.h>
+#include <rdma/rdma_verbs.h>
+
+static void ucma_convert_to_ai(struct addrinfo *ai, struct rdma_addrinfo *rai)
+{
+ memset(ai, 0, sizeof *ai);
+ ai->ai_flags = rai->ai_flags;
+ ai->ai_family = rai->ai_family;
+
+ switch (rai->ai_qp_type) {
+ case IBV_QPT_RC:
+ ai->ai_socktype = SOCK_STREAM;
+ break;
+ case IBV_QPT_UD:
+ ai->ai_socktype = SOCK_DGRAM;
+ break;
+ }
+
+ switch (rai->ai_port_space) {
+ case RDMA_PS_TCP:
+ ai->ai_protocol = IPPROTO_TCP;
+ break;
+ case RDMA_PS_IPOIB:
+ case RDMA_PS_UDP:
+ ai->ai_protocol = IPPROTO_UDP;
+ break;
+ }
+
+ if (rai->ai_flags & RAI_PASSIVE) {
+ ai->ai_addrlen = rai->ai_src_len;
+ ai->ai_addr = rai->ai_src_addr;
+ } else {
+ ai->ai_addrlen = rai->ai_dst_len;
+ ai->ai_addr = rai->ai_dst_addr;
+ }
+ ai->ai_canonname = rai->ai_dst_canonname;
+ ai->ai_next = NULL;
+}
+
+static int ucma_convert_to_rai(struct rdma_addrinfo *rai, struct addrinfo *ai)
+{
+ struct sockaddr *addr;
+ char *canonname;
+
+ memset(rai, 0, sizeof *rai);
+ rai->ai_flags = ai->ai_flags;
+ rai->ai_family = ai->ai_family;
+
+ switch (ai->ai_socktype) {
+ case SOCK_STREAM:
+ rai->ai_qp_type = IBV_QPT_RC;
+ break;
+ case SOCK_DGRAM:
+ rai->ai_qp_type = IBV_QPT_UD;
+ break;
+ }
+
+ switch (ai->ai_protocol) {
+ case IPPROTO_TCP:
+ rai->ai_port_space = RDMA_PS_TCP;
+ break;
+ case IPPROTO_UDP:
+ rai->ai_port_space = RDMA_PS_UDP;
+ break;
+ }
+
+ addr = (struct sockaddr *) malloc(ai->ai_addrlen);
+ if (!addr)
+ return rdma_seterrno(ENOMEM);
+
+ canonname = (char *) (ai->ai_canonname ? malloc(strlen(ai->ai_canonname) + 1) : NULL);
+ if (canonname)
+ strcpy(canonname, ai->ai_canonname);
+
+ memcpy(addr, ai->ai_addr, ai->ai_addrlen);
+ if (ai->ai_flags & RAI_PASSIVE) {
+ rai->ai_src_addr = addr;
+ rai->ai_src_len = ai->ai_addrlen;
+ rai->ai_src_canonname = canonname;
+ } else {
+ rai->ai_dst_addr = addr;
+ rai->ai_dst_len = ai->ai_addrlen;
+ rai->ai_dst_canonname = canonname;
+ }
+
+ return 0;
+}
+
+__declspec(dllexport)
+int rdma_getaddrinfo(char *node, char *service,
+ struct rdma_addrinfo *hints,
+ struct rdma_addrinfo **res)
+{
+ struct rdma_addrinfo *rai;
+ struct addrinfo ai_hints;
+ struct addrinfo *ai;
+ int ret;
+
+ if (hints)
+ ucma_convert_to_ai(&ai_hints, hints);
+
+ ret = getaddrinfo(node, service, &ai_hints, &ai);
+ if (ret)
+ return ret;
+
+ rai = (struct rdma_addrinfo *) malloc(sizeof(*rai));
+ if (!rai) {
+ ret = rdma_seterrno(ENOMEM);
+ goto err1;
+ }
+
+ ret = ucma_convert_to_rai(rai, ai);
+ if (ret)
+ goto err2;
+
+ if (!rai->ai_src_len && hints && hints->ai_src_len) {
+ rai->ai_src_addr = (struct sockaddr *) calloc(1, hints->ai_src_len);
+ if (!rai->ai_src_addr) {
+ ret = rdma_seterrno(ENOMEM);
+ goto err2;
+ }
+ memcpy(rai->ai_src_addr, hints->ai_src_addr,
+ hints->ai_src_len);
+ rai->ai_src_len = hints->ai_src_len;
+ }
+
+ // requires ib acm support --
+ //if (!(rai->ai_flags & RAI_PASSIVE))
+ // ucma_ib_resolve(rai);
+
+ freeaddrinfo(ai);
+ *res = rai;
+ return 0;
+
+err2:
+ rdma_freeaddrinfo(rai);
+err1:
+ freeaddrinfo(ai);
+ return ret;
+}
+
+__declspec(dllexport)
+void rdma_freeaddrinfo(struct rdma_addrinfo *res)
+{
+ struct rdma_addrinfo *rai;
+
+ while (res) {
+ rai = res;
+ res = res->ai_next;
+
+ if (rai->ai_connect)
+ free(rai->ai_connect);
+
+ if (rai->ai_route)
+ free(rai->ai_route);
+
+ if (rai->ai_src_canonname)
+ free(rai->ai_src_canonname);
+
+ if (rai->ai_dst_canonname)
+ free(rai->ai_dst_canonname);
+
+ if (rai->ai_src_addr)
+ free(rai->ai_src_addr);
+
+ if (rai->ai_dst_addr)
+ free(rai->ai_dst_addr);
+
+ free(rai);
+ }
+}
diff --git a/trunk/ulp/librdmacm/src/cma_exports.src b/trunk/ulp/librdmacm/src/cma_exports.src
index a8fe8f3..8f370be 100644
--- a/trunk/ulp/librdmacm/src/cma_exports.src
+++ b/trunk/ulp/librdmacm/src/cma_exports.src
@@ -30,5 +30,7 @@ rdma_free_devices
rdma_event_str
rdma_set_option
rdma_migrate_id
+rdma_getaddrinfo
+rdma_freeaddrinfo
rdmaw_wsa_errno
#endif
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