static int pp_listen_ctx(struct pingpong_context *ctx)
{
int rc = 0;
rc = fi_passive_ep(ctx->fabric, ctx->info, &ctx->lep, NULL);
if (rc) {
fprintf(stderr, "Unable to open listener endpoint\n");
return 1;
}
/* Create listener EQ */
rc = pp_eq_create(ctx);
if (rc) {
fprintf(stderr, "Unable to allocate listener resources\n");
return 1;
}
rc = fi_pep_bind(ctx->lep, &ctx->eq->fid, 0);
if (rc) {
FT_PRINTERR("fi_pep_bind", rc);
return 1;
}
rc = fi_listen(ctx->lep);
if (rc) {
FT_PRINTERR("fi_listen", rc);
return 1;
}
printf("Listening for incoming connections...\n");
return 0;
}
static int rxm_ep_ctrl(struct fid *fid, int command, void *arg)
{
struct rxm_ep *rxm_ep;
struct rxm_fabric *rxm_fabric;
int ret;
rxm_ep = container_of(fid, struct rxm_ep, util_ep.ep_fid.fid);
rxm_fabric = container_of(rxm_ep->util_ep.domain->fabric,
struct rxm_fabric, util_fabric);
switch (command) {
case FI_ENABLE:
if (!rxm_ep->util_ep.rx_cq || !rxm_ep->util_ep.tx_cq)
return -FI_ENOCQ;
if (!rxm_ep->util_ep.av)
return -FI_EOPBADSTATE; /* TODO: Add FI_ENOAV */
ret = fi_pep_bind(rxm_ep->msg_pep, &rxm_fabric->msg_eq->fid, 0);
if (ret) {
FI_WARN(&rxm_prov, FI_LOG_EP_CTRL,
"Unable to bind msg PEP to msg EQ\n");
return ret;
}
ret = fi_listen(rxm_ep->msg_pep);
if (ret) {
FI_WARN(&rxm_prov, FI_LOG_EP_CTRL,
"Unable to set msg PEP to listen state\n");
return ret;
}
break;
default:
return -FI_ENOSYS;
}
return 0;
}
int cm_server_start(void)
{
int ret;
struct sockaddr_in loc_sa;
cm_local_ip(&loc_sa);
srv_hints = fi_allocinfo();
srv_hints->fabric_attr->name = strdup("gni");
srv_hints->ep_attr->type = FI_EP_MSG;
srv_hints->domain_attr->mr_mode = GNIX_DEFAULT_MR_MODE;
ret = fi_getinfo(fi_version(), inet_ntoa(loc_sa.sin_addr),
DEF_PORT, FI_SOURCE, srv_hints, &srv_fi);
cr_assert(!ret);
ret = fi_fabric(srv_fi->fabric_attr, &srv_fab, NULL);
cr_assert(!ret);
ret = fi_eq_open(srv_fab, &eq_attr, &srv_eq, NULL);
cr_assert(!ret);
ret = fi_passive_ep(srv_fab, srv_fi, &srv_pep, NULL);
cr_assert(!ret);
ret = fi_pep_bind(srv_pep, &srv_eq->fid, 0);
cr_assert(!ret);
ret = fi_listen(srv_pep);
cr_assert(!ret);
dbg_printf("Server start complete.\n");
return 0;
}
static int server_listen(void)
{
struct fi_info *fi;
int ret;
/* Get fabric info */
ret = fi_getinfo(FT_FIVERSION, NULL, opts.src_port, FI_SOURCE, hints, &fi);
if (ret) {
FT_PRINTERR("fi_getinfo", ret);
return ret;
}
/* Open the fabric */
ret = fi_fabric(fi->fabric_attr, &fab, NULL);
if (ret) {
FT_PRINTERR("fi_fabric", ret);
goto err0;
}
/* Open a passive endpoint */
ret = fi_passive_ep(fab, fi, &pep, NULL);
if (ret) {
FT_PRINTERR("fi_passive_ep", ret);
goto err1;
}
/* Allocate connection management resources */
ret = alloc_cm_res();
if (ret)
goto err2;
/* Bind EQ to passive endpoint */
ret = fi_pep_bind(pep, &cmeq->fid, 0);
if (ret) {
FT_PRINTERR("fi_pep_bind", ret);
goto err3;
}
/* Listen for incoming connections */
ret = fi_listen(pep);
if (ret) {
FT_PRINTERR("fi_listen", ret);
goto err3;
}
fi_freeinfo(fi);
return 0;
err3:
fi_close(&cmeq->fid);
err2:
fi_close(&pep->fid);
err1:
fi_close(&fab->fid);
err0:
fi_freeinfo(fi);
return ret;
}
static int server_listen(void)
{
struct fi_info *fi;
int ret;
ret = fi_getinfo(FT_FIVERSION, opts.src_addr, opts.src_port, FI_SOURCE,
hints, &fi);
if (ret) {
FT_PRINTERR("fi_getinfo", ret);
return ret;
}
ret = fi_fabric(fi->fabric_attr, &fab, NULL);
if (ret) {
FT_PRINTERR("fi_fabric", ret);
goto err0;
}
ret = fi_passive_ep(fab, fi, &pep, NULL);
if (ret) {
FT_PRINTERR("fi_passive_ep", ret);
goto err1;
}
ret = alloc_cm_res();
if (ret)
goto err2;
ret = fi_pep_bind(pep, &cmeq->fid, 0);
if (ret) {
FT_PRINTERR("fi_pep_bind", ret);
goto err3;
}
ret = fi_listen(pep);
if (ret) {
FT_PRINTERR("fi_listen", ret);
goto err3;
}
fi_freeinfo(fi);
return 0;
err3:
free_lres();
err2:
fi_close(&pep->fid);
err1:
fi_close(&fab->fid);
err0:
fi_freeinfo(fi);
return ret;
}
static int server_listen(void)
{
int ret;
ret = fi_pep_bind(pep, &eq->fid, 0);
if (ret) {
FT_PRINTERR("fi_pep_bind", ret);
return ret;
}
ret = fi_listen(pep);
if (ret) {
FT_PRINTERR("fi_listen", ret);
return ret;
}
return 0;
}
int ft_start_server(void)
{
int ret;
ret = fi_getinfo(FT_FIVERSION, opts.src_addr, opts.src_port, FI_SOURCE,
hints, &fi_pep);
if (ret) {
FT_PRINTERR("fi_getinfo", ret);
return ret;
}
ret = fi_fabric(fi_pep->fabric_attr, &fabric, NULL);
if (ret) {
FT_PRINTERR("fi_fabric", ret);
return ret;
}
ret = fi_eq_open(fabric, &eq_attr, &eq, NULL);
if (ret) {
FT_PRINTERR("fi_eq_open", ret);
return ret;
}
ret = fi_passive_ep(fabric, fi_pep, &pep, NULL);
if (ret) {
FT_PRINTERR("fi_passive_ep", ret);
return ret;
}
ret = fi_pep_bind(pep, &eq->fid, 0);
if (ret) {
FT_PRINTERR("fi_pep_bind", ret);
return ret;
}
ret = fi_listen(pep);
if (ret) {
FT_PRINTERR("fi_listen", ret);
return ret;
}
return 0;
}
int ft_start_server(void)
{
int ret;
ret = ft_getinfo(hints, &fi_pep);
if (ret)
return ret;
ret = fi_fabric(fi_pep->fabric_attr, &fabric, NULL);
if (ret) {
FT_PRINTERR("fi_fabric", ret);
return ret;
}
ret = fi_eq_open(fabric, &eq_attr, &eq, NULL);
if (ret) {
FT_PRINTERR("fi_eq_open", ret);
return ret;
}
ret = fi_passive_ep(fabric, fi_pep, &pep, NULL);
if (ret) {
FT_PRINTERR("fi_passive_ep", ret);
return ret;
}
ret = fi_pep_bind(pep, &eq->fid, 0);
if (ret) {
FT_PRINTERR("fi_pep_bind", ret);
return ret;
}
ret = fi_listen(pep);
if (ret) {
FT_PRINTERR("fi_listen", ret);
return ret;
}
return 0;
}
/*
* rpmemd_fip_init_fabric_res -- initialize common fabric's resources
*/
static int
rpmemd_fip_init_fabric_res(struct rpmemd_fip *fip)
{
int ret;
ret = fi_fabric(fip->fi->fabric_attr, &fip->fabric, NULL);
if (ret) {
RPMEMD_FI_ERR(ret, "opening fabric domain");
goto err_fi_fabric;
}
ret = fi_domain(fip->fabric, fip->fi, &fip->domain, NULL);
if (ret) {
RPMEMD_FI_ERR(ret, "opening fabric access domain");
goto err_fi_domain;
}
struct fi_eq_attr eq_attr = {
.size = 0, /* use default */
.flags = 0,
.wait_obj = FI_WAIT_UNSPEC,
.signaling_vector = 0,
.wait_set = NULL,
};
ret = fi_eq_open(fip->fabric, &eq_attr, &fip->eq, NULL);
if (ret) {
RPMEMD_FI_ERR(ret, "opening event queue");
goto err_eq_open;
}
ret = fi_passive_ep(fip->fabric, fip->fi, &fip->pep, NULL);
if (ret) {
RPMEMD_FI_ERR(ret, "allocating passive endpoint");
goto err_pep;
}
ret = fi_pep_bind(fip->pep, &fip->eq->fid, 0);
if (ret) {
RPMEMD_FI_ERR(ret, "binding event queue to passive endpoint");
goto err_pep_bind_eq;
}
return 0;
err_pep_bind_eq:
RPMEMD_FI_CLOSE(fip->pep, "closing passive endpoint");
err_pep:
RPMEMD_FI_CLOSE(fip->eq, "closing event queue");
err_eq_open:
RPMEMD_FI_CLOSE(fip->domain, "closing fabric access domain");
err_fi_domain:
RPMEMD_FI_CLOSE(fip->fabric, "closing fabric domain");
err_fi_fabric:
return ret;
}
/*
* rpmemd_fip_fini_fabric_res -- deinitialize common fabric resources
*/
static void
rpmemd_fip_fini_fabric_res(struct rpmemd_fip *fip)
{
RPMEMD_FI_CLOSE(fip->pep, "closing passive endpoint");
RPMEMD_FI_CLOSE(fip->eq, "closing event queue");
RPMEMD_FI_CLOSE(fip->domain, "closing fabric access domain");
RPMEMD_FI_CLOSE(fip->fabric, "closing fabric domain");
}
static void test_connect_with_accept_blocking_on_eq_fq_SERVER(void)
{
int ret;
printf("SERVER running\n");
setup_ofi(NULL, NULL, FI_SOURCE);
#if WANT_FDS
// Add the EQ FD to the epoll fd
static struct epoll_event edt;
memset(&edt, 0, sizeof(edt));
edt.events = EPOLLIN;
edt.data.u32 = 2222;
ret = epoll_ctl(epoll_fd, EPOLL_CTL_ADD, fidev.eq_fd, &edt);
if (ret < 0) {
error("server epoll_ctl failed");
}
#endif
// Make a PEP
ret = fi_passive_ep(fidev.fabric, fidev.info, &fidev.pep, NULL);
if (0 != ret) {
error("fi_passive_ep failed");
}
#if WANT_FIXED_PORT
size_t ss = sizeof(sin);
ret = fi_getname(&(fidev.pep->fid), &sin, &ss);
if (0 != ret) {
error("fi_setname failed");
}
sin.sin_port = htons(listen_port);
// Bind the PEP to listen on a specific port
ret = fi_setname(&(fidev.pep->fid), &sin, sizeof(sin));
if (0 != ret) {
error("fi_setname failed");
}
#endif
// Bind the EQ to the PEP
ret = fi_pep_bind(fidev.pep, &fidev.eq->fid, 0);
if (0 != ret) {
error("fi_pep_bind failed");
}
// Listen
ret = fi_listen(fidev.pep);
if (0 != ret) {
error("fi_listen failed");
}
// Get the actual address of this PEP
struct sockaddr_in sinout;
size_t s = sizeof(sinout);
ret = fi_getname(&(fidev.pep->fid), &sinout, &s);
if (0 != ret) {
error("fi_setname failed");
}
sin.sin_family = sinout.sin_family;
sin.sin_addr = sinout.sin_addr;
sin.sin_port = sinout.sin_port;
// Print server addr
printf("SERVER listening on %s\n", addrstr(&sin));
// Send our node (IP addr) and service (port) to the client
snprintf(ofi_node, sizeof(ofi_node) - 1, "%s",
inet_ntoa(sin.sin_addr));
snprintf(ofi_service, sizeof(ofi_service) - 1, "%d",
ntohs(sin.sin_port));
MPI_Send(ofi_node, sizeof(ofi_node) - 1, MPI_CHAR,
1, 101, MPI_COMM_WORLD);
MPI_Send(ofi_service, sizeof(ofi_service) - 1, MPI_CHAR,
1, 102, MPI_COMM_WORLD);
printf("SERVER sent via MPI to client: %s / %s\n", ofi_node, ofi_service);
#if WANT_FDS
// Now wait for the listen to complete
int nevents;
#define NEVENTS 32
struct epoll_event events[NEVENTS];
int timeout = 10000;
while (1) {
printf("SERVER blocking on epoll\n");
nevents = epoll_wait(epoll_fd, events, NEVENTS, timeout);
if (nevents < 0) {
if (errno != EINTR) {
error("server epoll wait failed");
} else {
continue;
}
} else {
printf("SERVER successfully woke up from epoll! %d events\n", nevents);
for (int i = 0; i < nevents; ++i) {
if (events[i].data.u32 != 2222) {
error("server unexpected epoll return type");
}
}
// If we got the expected event, then go read from the EQ
break;
}
}
#endif
// Wait for the FI_CONNREQ event
uint32_t event;
uint8_t *entry_buffer;
size_t expected_len = sizeof(struct fi_eq_cm_entry) +
sizeof(client_data);
entry_buffer = (uint8_t*) calloc(1, expected_len);
if (NULL == entry_buffer) {
error("calloc failed");
}
struct fi_eq_cm_entry *entry = (struct fi_eq_cm_entry*) entry_buffer;
while (1) {
printf("SERVER waiting for FI_CONNREQ\n");
#if WANT_FDS
ret = fi_eq_read(fidev.eq, &event, entry, expected_len, 0);
#else
ret = fi_eq_sread(fidev.eq, &event, entry, expected_len, -1, 0);
#endif
if (-FI_EAVAIL == ret) {
printf("server fi_eq_sread failed because there's something in the error queue\n");
char buffer[2048];
struct fi_eq_err_entry *err_entry = (struct fi_eq_err_entry*) buffer;
ret = fi_eq_readerr(fidev.eq, err_entry, 0);
printf("error code: %d (%s), prov err code: %d (%s)\n", err_entry->err, fi_strerror(err_entry->err), err_entry->prov_errno, fi_strerror(err_entry->prov_errno));
error("sad panda");
} else if (-EAGAIN == ret) {
fprintf(stderr, "SERVER fi_eq_sread fail got -EAGAIN... trying again...\n");
sleep(1);
continue;
} else if (ret < 0) {
fprintf(stderr, "SERVER fi_eq_sread fail: %s (FI_EAVAIL = %d, -ret = %d)\n", fi_strerror(-ret), FI_EAVAIL, -ret);
error("SERVER fi_eq_sread failed for some random reason");
} else if (event != FI_CONNREQ) {
error("SERVER got some unexpected event");
} else if (ret != expected_len) {
error("SERVER got wrong length back from fi_eq_sread");
}
uint32_t *d = (uint32_t*) entry->data;
for (int i = 0; i < (sizeof(client_data) / sizeof(uint32_t)); ++i) {
if (d[i] != client_data[i]) {
printf("SERVER got wrong CM client data: d[%d]=%d, should be %d\n",
i, d[i], client_data[i]);
}
}
printf("SERVER got FI_CONNREQ, correct size, and correct data -- yay!\n");
break;
}
// Silly logistics: setup_ofi_active adds the fd to the epoll set.
// But we already added it. So for simplicity, just remove it
// here so that setup_ofi_active() can re-add it.
#if WANT_FDS
// Remove the EQ FD from the epoll fd
ret = epoll_ctl(epoll_fd, EPOLL_CTL_DEL, fidev.eq_fd, &edt);
if (ret < 0) {
error("server epoll_ctl DEL failed");
}
#endif
// Make an active endpoint
setup_ofi_active(entry->info, &ficonn.ep);
// Accept the incoming connection
ret = fi_accept(ficonn.ep, (void*) server_data, sizeof(server_data));
if (ret != 0) {
printf("fi_accept: ret=%d, %s\n", ret, fi_strerror(-ret));
error("SERVER fi_accept failed\n");
}
// Need to read and get a FI_CONNECTED event
while (1) {
printf("SERVER waiting for FI_CONNECTED\n");
#if WANT_FDS
ret = fi_eq_read(fidev.eq, &event, entry, expected_len, 0);
#else
ret = fi_eq_sread(fidev.eq, &event, entry, expected_len, -1, 0);
#endif
if (-FI_EAVAIL == ret) {
printf("server fi_eq_sread failed because there's something in the error queue\n");
char buffer[2048];
struct fi_eq_err_entry *err_entry = (struct fi_eq_err_entry*) buffer;
ret = fi_eq_readerr(fidev.eq, err_entry, 0);
printf("error code: %d (%s), prov err code: %d (%s)\n", err_entry->err, fi_strerror(err_entry->err), err_entry->prov_errno, fi_strerror(err_entry->prov_errno));
error("sad panda");
} else if (-EAGAIN == ret) {
fprintf(stderr, "SERVER fi_eq_sread fail got -EAGAIN... trying again...\n");
sleep(1);
continue;
} else if (ret < 0) {
fprintf(stderr, "SERVER fi_eq_sread fail: %s (FI_EAVAIL = %d, -ret = %d)\n", fi_strerror(-ret), FI_EAVAIL, -ret);
error("SERVER fi_eq_sread failed for some random reason");
} else if (event != FI_CONNECTED) {
error("SERVER got some unexpected event");
}
printf("SERVER got FI_CONNECTED -- yay!\n");
break;
}
// Post a recv buffer for the client to send
int msg[4] = { 0 };
int len = sizeof(msg);
printf("SERVER receiving len of %d\n", len);
struct fid_mr no_mr;
struct fid_mr *mr;
void *recv_context = (void*) 0x17;
#if 0
fi_mr_reg(fidev.domain, msg, len, FI_SEND | FI_RECV,
0, (uint64_t)(uintptr_t) msg, 0, &mr, NULL);
#else
// Try using no mr, like fi_msg_pingpong...
memset(&no_mr, 0, sizeof(no_mr));
mr = &no_mr;
#endif
ret = fi_recv(ficonn.ep, msg, len,
fi_mr_desc(mr), 0, recv_context);
if (ret < 0) {
printf("fi_recv failed! %d, %s\n", ret, fi_strerror(-ret));
MPI_Abort(MPI_COMM_WORLD, 37);
}
sleep(1);
printf("SERVER posted receive -- waiting for client to send\n");
MPI_Barrier(MPI_COMM_WORLD);
// Wait for receive completion
struct fi_cq_entry cqe;
while (1) {
ret = fi_cq_sread(ficonn.cq, &cqe, 1, 0, -1);
if (cqe.op_context == recv_context) {
printf("SERVER receive completed\n");
break;
} else {
printf("SERVER got some other completion... continuing\n");
}
}
printf("SERVER finished -- waiting for client before teardown\n");
MPI_Barrier(MPI_COMM_WORLD);
printf("SERVER tearing down\n");
fi_close(&(mr->fid));
teardown_ofi();
}
static int run_server(void)
{
int i, ret;
printf("cmatose: starting server\n");
ret = fi_passive_ep(fabric, info, &pep, NULL);
if (ret) {
FT_PRINTERR("fi_passive_ep", ret);
return ret;
}
ret = fi_pep_bind(pep, &eq->fid, 0);
if (ret) {
FT_PRINTERR("fi_ep_bind", ret);
goto out;
}
ret = fi_listen(pep);
if (ret) {
FT_PRINTERR("fi_listen", ret);
goto out;
}
ret = connect_events();
if (ret)
goto out;
if (hints->tx_attr->size) {
printf("initiating data transfers\n");
for (i = 0; i < connections; i++) {
ret = post_sends(&nodes[i]);
if (ret)
goto out;
}
printf("completing sends\n");
ret = poll_cqs(SEND_CQ_INDEX);
if (ret)
goto out;
printf("receiving data transfers\n");
ret = poll_cqs(RECV_CQ_INDEX);
if (ret)
goto out;
printf("data transfers complete\n");
}
printf("cmatose: disconnecting\n");
for (i = 0; i < connections; i++) {
if (!nodes[i].connected)
continue;
nodes[i].connected = 0;
fi_shutdown(nodes[i].ep, 0);
}
ret = shutdown_events();
printf("disconnected\n");
out:
fi_close(&pep->fid);
return ret;
}