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support ipv6 #39

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support ipv6 #39

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e38ee61
support ipv6
Sep 23, 2020
d9d592f
support ipv6 for non-RDMA case
Oct 14, 2020
60139b5
change AF_INET to PF_INET
Oct 14, 2020
739a193
address comment
Oct 19, 2020
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36 changes: 25 additions & 11 deletions src/rdma_van.h
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Original file line number Diff line number Diff line change
Expand Up @@ -18,6 +18,7 @@

#ifdef DMLC_USE_RDMA

#include <algorithm>
#include "rdma_utils.h"
#include "rdma_transport.h"

Expand Down Expand Up @@ -125,26 +126,39 @@ class RDMAVan : public Van {
struct sockaddr_in addr;
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memset(&addr, 0, sizeof(addr));

int af = PF_INET;
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int ret = -EINVAL;
struct addrinfo *res;

auto val = Environment::Get()->find("DMLC_NODE_HOST");
std::string val_str = std::string(val);
if (val) {
PS_VLOG(1) << "bind to DMLC_NODE_HOST: " << std::string(val);
PS_VLOG(1) << "bind to DMLC_NODE_HOST: " << val_str;
std::size_t n = std::count(val_str.begin(), val_str.end(), ':');
if (n > 1) {
af = PF_INET6;
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}
addr.sin_addr.s_addr = inet_addr(val);
}

addr.sin_family = AF_INET;
// addr.sin_family = AF_INET;
addr.sin_family = af;
int port = node.port;
addr.sin_port = htons(port);
ret = getaddrinfo(val_str.c_str(), std::to_string(port).c_str(), NULL, &res);
CHECK(ret >= 0) << "could not getaddrinfo address " << val_str << " error code " << ret;
unsigned seed = static_cast<unsigned>(time(NULL) + port);
for (int i = 0; i < max_retry + 1; ++i) {
addr.sin_port = htons(port);
if (rdma_bind_addr(listener_,
reinterpret_cast<struct sockaddr *>(&addr)) == 0) {
// if (rdma_bind_addr(listener_,
// reinterpret_cast<struct sockaddr *>(&addr)) == 0) {
if (rdma_bind_addr(listener_, res->ai_addr) == 0) {
break;
}
if (i == max_retry) {
port = -1;
} else {
// if (i == max_retry) {
// port = -1;
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// } else {
port = 10000 + rand_r(&seed) % 40000;
}
// }
}
CHECK(rdma_listen(listener_, kRdmaListenBacklog) == 0)
<< "Listen RDMA connection failed: " << strerror(errno);
Expand Down Expand Up @@ -207,11 +221,11 @@ class RDMAVan : public Van {
CHECK_EQ(rc, 0) << "getaddrinfo failed: " << gai_strerror(rc);

CHECK_EQ(rdma_resolve_addr(endpoint->cm_id, addr->ai_addr,
remote_addr->ai_addr, kTimeoutms), 0)
(struct sockaddr *)remote_addr->ai_addr, kTimeoutms), 0)
<< "Resolve RDMA address failed with errno: " << strerror(errno);
} else {
CHECK_EQ(rdma_resolve_addr(endpoint->cm_id, nullptr,
remote_addr->ai_addr, kTimeoutms),
(struct sockaddr *)remote_addr->ai_addr, kTimeoutms),
0)
<< "Resolve RDMA address failed with errno: " << strerror(errno);
}
Expand Down