struct xio_session *sd_xio_gw_create_session(struct xio_context *ctx,
const struct node_id *nid,
void *user_ctx)
{
struct xio_session *session;
char url[256];
struct xio_session_params params;
if (nid->io_transport_type == IO_TRANSPORT_TYPE_RDMA)
snprintf(url, 256, "rdma://%s",
addr_to_str(nid->io_addr, nid->io_port));
else
snprintf(url, 256, "tcp://%s",
addr_to_str(nid->io_addr, nid->io_port));
memset(¶ms, 0, sizeof(params));
params.type = XIO_SESSION_CLIENT;
params.ses_ops = &gw_client_ses_ops;
params.uri = url;
params.user_context = user_ctx;
session = xio_session_create(¶ms);
return session;
}
/*---------------------------------------------------------------------------*/
int main(int argc, char *argv[])
{
struct xio_session *session;
char url[256];
struct session_data session_data;
int i = 0;
struct xio_session_params params;
if (argc < 3) {
printf("Usage: %s <host> <port> <transport:optional>\n",
argv[0]);
exit(1);
}
memset(&session_data, 0, sizeof(session_data));
memset(¶ms, 0, sizeof(params));
/* initialize library */
xio_init();
/* create thread context for the client */
session_data.ctx = xio_context_create(NULL, 0, -1);
/* create url to connect to */
if (argc > 3)
sprintf(url, "%s://%s:%s", argv[3], argv[1], argv[2]);
else
sprintf(url, "rdma://%s:%s", argv[1], argv[2]);
params.type = XIO_SESSION_CLIENT;
params.ses_ops = &ses_ops;
params.user_context = &session_data;
params.uri = url;
session = xio_session_create(¶ms);
/* connect the session */
session_data.conn = xio_connect(session, session_data.ctx,
0, NULL, &session_data);
/* create "hello world" message */
for (i = 0; i < QUEUE_DEPTH; i++) {
memset(&session_data.req[i], 0, sizeof(session_data.req[i]));
/* header */
session_data.req[i].out.header.iov_base =
strdup("hello world header request");
session_data.req[i].out.header.iov_len =
strlen(session_data.req[i].out.header.iov_base) + 1;
/* iovec[0]*/
session_data.req[i].in.sgl_type = XIO_SGL_TYPE_IOV;
session_data.req[i].in.data_iov.max_nents = XIO_IOVLEN;
session_data.req[i].out.sgl_type = XIO_SGL_TYPE_IOV;
session_data.req[i].out.data_iov.max_nents = XIO_IOVLEN;
session_data.req[i].out.data_iov.sglist[0].iov_base =
strdup("hello world data request");
session_data.req[i].out.data_iov.sglist[0].iov_len =
strlen(session_data.req[i].out.data_iov.sglist[0].iov_base) + 1;
session_data.req[i].out.data_iov.nents = 1;
}
/* send first message */
for (i = 0; i < QUEUE_DEPTH; i++) {
xio_send_request(session_data.conn, &session_data.req[i]);
session_data.nsent++;
}
/* event dispatcher is now running */
xio_context_run_loop(session_data.ctx, XIO_INFINITE);
/* normal exit phase */
fprintf(stdout, "exit signaled\n");
/* free the message */
for (i = 0; i < QUEUE_DEPTH; i++) {
free(session_data.req[i].out.header.iov_base);
free(session_data.req[i].out.data_iov.sglist[0].iov_base);
}
/* free the context */
xio_context_destroy(session_data.ctx);
xio_shutdown();
printf("good bye\n");
return 0;
}
/*---------------------------------------------------------------------------*/
int main(int argc, char *const argv[])
{
struct xio_session *session;
char url[256];
int i;
struct sigaction sa;
int c;
char *addr = NULL;
char *port = NULL;
char *trans = NULL;
struct xio_session_params params;
struct xio_connection_params cparams;
while (1) {
c = getopt_long(argc, argv, "a:p:r:hdnV", longopts, NULL);
if (c == -1)
break;
switch (c) {
case 'a':
addr = optarg;
break;
case 'p':
port = optarg;
break;
case 'r':
trans = optarg;
break;
case 'h':
usage(argv[0], 0);
case 'd':
debug_flag++;
nofork_flag++;
break;
case 'n':
nofork_flag++;
break;
case 'V':
printf("%s\n", PACKAGE_STRING);
exit(0);
break;
default:
usage(argv[0], 1);
break;
}
}
memset(&sa, 0, sizeof(sa));
sa.sa_handler = signal_handler;
sigaction(SIGINT, &sa, NULL);
sigaction(SIGTERM, &sa, NULL);
sigaction(SIGQUIT, &sa, NULL);
sigaction(SIGHUP, &sa, NULL);
sa.sa_handler = SIG_IGN;
sa.sa_flags = SA_RESTART;
sigaction(SIGPIPE, &sa, NULL);
if (!nofork_flag && daemon(0, 0)) {
logerr("daemon() failed");
exit(1);
}
if (!debug_flag) {
openlog("xioclntd", LOG_PID, LOG_DAEMON);
use_syslog = 1;
}
/* Create the process PID file */
if (create_pidfile(pid_file) != 0)
exit(EXIT_FAILURE);
memset(&session_data, 0, sizeof(session_data));
memset(¶ms, 0, sizeof(params));
memset(&cparams, 0, sizeof(cparams));
/* initialize library */
xio_init();
/* create "hello world" message */
for (i = 0; i < QUEUE_DEPTH; i++) {
memset(&session_data.req[i], 0, sizeof(session_data.req[i]));
/* header */
session_data.req[i].out.header.iov_base =
strdup("hello world header request");
session_data.req[i].out.header.iov_len =
strlen((const char *)
session_data.req[i].out.header.iov_base) + 1;
/* iovec[0]*/
session_data.req[i].out.sgl_type = XIO_SGL_TYPE_IOV;
session_data.req[i].out.data_iov.max_nents = XIO_IOVLEN;
session_data.req[i].out.data_iov.sglist[0].iov_base =
strdup("hello world iovec request");
session_data.req[i].out.data_iov.sglist[0].iov_len =
strlen((const char *)
session_data.req[i].out.data_iov.sglist[0].iov_base) + 1;
session_data.req[i].out.data_iov.nents = 1;
}
/* create thread context for the client */
session_data.ctx = xio_context_create(NULL, 0, -1);
/* create url to connect to */
if (trans)
sprintf(url, "%s://%s:%s", trans, addr, port);
else
sprintf(url, "rdma://%s:%s", addr, port);
params.type = XIO_SESSION_CLIENT;
params.ses_ops = &ses_ops;
params.user_context = &session_data;
params.uri = url;
reconnect:
session = xio_session_create(¶ms);
cparams.session = session;
cparams.ctx = session_data.ctx;
cparams.conn_user_context = &session_data;
/* connect the session */
session_data.conn = xio_connect(&cparams);
/* event dispatcher is now running */
xio_context_run_loop(session_data.ctx, XIO_INFINITE);
if (reconnect_flag || reload_flag) {
session_data.cnt = 0;
if (reconnect_flag)
sleep(1);
reload_flag = 0;
reconnect_flag = 0;
goto reconnect;
}
/* normal exit phase */
logit(LOG_INFO, "exit signaled\n");
/* free the message */
for (i = 0; i < QUEUE_DEPTH; i++) {
free(session_data.req[i].out.header.iov_base);
free(session_data.req[i].out.data_iov.sglist[0].iov_base);
}
/* free the context */
xio_context_destroy(session_data.ctx);
xio_shutdown();
remove_pidfile();
if (use_syslog)
closelog();
return 0;
}
/*---------------------------------------------------------------------------*/
int run_client_test(struct perf_parameters *user_param)
{
struct session_data sess_data;
struct perf_comm *comm;
struct thread_data *tdata;
char url[256];
int i = 0;
int max_cpus;
pthread_t statistics_thread_id;
struct perf_command command;
int size_log2;
int max_size_log2 = 24;
/* client session attributes */
struct xio_session_attr attr = {
&ses_ops,
NULL,
0
};
xio_init();
g_mhz = get_cpu_mhz(0);
max_cpus = sysconf(_SC_NPROCESSORS_ONLN);
threads_iter = 1;
size_log2 = 0;
tdata = calloc(user_param->threads_num, sizeof(*tdata));
if (tdata == NULL) {
fprintf(fd, "malloc failed\n");
return -1;
}
comm = create_comm_struct(user_param);
if (establish_connection(comm)) {
fprintf(stderr, "failed to establish connection\n");
free(tdata);
destroy_comm_struct(comm);
return -1;
}
if (user_param->output_file) {
fd = fopen(user_param->output_file, "w");
if (fd == NULL) {
fprintf(fd, "file open failed. %s\n",
user_param->output_file);
free(sess_data.tdata);
destroy_comm_struct(comm);
return -1;
}
fprintf(fd, "size, threads, tps, bw[Mbps], lat[usec]\n");
fflush(fd);
}
printf("%s", RESULT_FMT);
printf("%s", RESULT_LINE);
while (threads_iter <= user_param->threads_num) {
data_len = (uint64_t)1 << size_log2;
memset(&sess_data, 0, sizeof(sess_data));
memset(tdata, 0, user_param->threads_num*sizeof(*tdata));
sess_data.tdata = tdata;
command.test_param.machine_type = user_param->machine_type;
command.test_param.test_type = user_param->test_type;
command.test_param.verb = user_param->verb;
command.test_param.data_len = data_len;
command.command = GetTestParams;
ctx_write_data(comm, &command, sizeof(command));
sprintf(url, "rdma://%s:%d", user_param->server_addr,
user_param->server_port);
sess_data.session = xio_session_create(XIO_SESSION_CLIENT,
&attr, url, 0, 0, &sess_data);
if (sess_data.session == NULL) {
int error = xio_errno();
fprintf(stderr,
"session creation failed. reason %d - (%s)\n",
error, xio_strerror(error));
goto cleanup;
}
pthread_create(&statistics_thread_id, NULL,
statistics_thread_cb, &sess_data);
/* spawn threads to handle connection */
for (i = 0; i < threads_iter; i++) {
sess_data.tdata[i].affinity =
((user_param->cpu + i) % max_cpus);
sess_data.tdata[i].cid = i;
sess_data.tdata[i].sdata = &sess_data;
sess_data.tdata[i].user_param = user_param;
sess_data.tdata[i].data_len = data_len;
/* all threads are working on the same session */
sess_data.tdata[i].session = sess_data.session;
pthread_create(&sess_data.tdata[i].thread_id, NULL,
worker_thread, &sess_data.tdata[i]);
}
pthread_join(statistics_thread_id, NULL);
/* join the threads */
for (i = 0; i < threads_iter; i++)
pthread_join(sess_data.tdata[i].thread_id, NULL);
/* close the session */
xio_session_destroy(sess_data.session);
if (sess_data.abort) {
fprintf(stderr, "program aborted\n");
goto cleanup;
}
/* send result to server */
command.results.bytes = data_len;
command.results.threads = threads_iter;
command.results.tps = sess_data.tps;
command.results.avg_bw = sess_data.avg_bw;
command.results.avg_lat = sess_data.avg_lat_us;
command.results.min_lat = sess_data.min_lat_us;
command.results.max_lat = sess_data.max_lat_us;
command.command = GetTestResults;
/* sync point */
ctx_write_data(comm, &command, sizeof(command));
printf(REPORT_FMT,
data_len,
threads_iter,
sess_data.tps,
sess_data.avg_bw,
sess_data.avg_lat_us,
sess_data.min_lat_us,
sess_data.max_lat_us);
if (fd)
fprintf(fd, "%lu, %d, %lu, %.2lf, %.2lf\n",
data_len,
threads_iter,
sess_data.tps,
sess_data.avg_bw,
sess_data.avg_lat_us);
fflush(fd);
/* sync point */
ctx_read_data(comm, NULL, 0, NULL);
if (++size_log2 < max_size_log2)
continue;
threads_iter++;
size_log2 = 0;
}
printf("%s", RESULT_LINE);
cleanup:
if (fd)
fclose(fd);
ctx_hand_shake(comm);
ctx_close_connection(comm);
destroy_comm_struct(comm);
free(tdata);
xio_shutdown();
return 0;
}
/*---------------------------------------------------------------------------*/
int main(int argc, char *argv[])
{
struct xio_session *session;
char url[256];
struct session_data session_data;
int i = 0;
/* client session attributes */
struct xio_session_attr attr = {
&ses_ops, /* callbacks structure */
NULL, /* no need to pass the server private data */
0
};
memset(&session_data, 0, sizeof(session_data));
/* initialize library */
xio_init();
/* create thread context for the client */
session_data.ctx = xio_context_create(NULL, 0);
/* create url to connect to */
sprintf(url, "rdma://%s:%s", argv[1], argv[2]);
session = xio_session_create(XIO_SESSION_CLIENT,
&attr, url, 0, 0, &session_data);
/* connect the session */
session_data.conn = xio_connect(session, session_data.ctx,
0, NULL, &session_data);
/* create "hello world" message */
for (i = 0; i < QUEUE_DEPTH; i++) {
memset(&session_data.req[i], 0, sizeof(session_data.req[i]));
session_data.req[i].out.header.iov_base =
strdup("hello world header request");
session_data.req[i].out.header.iov_len =
strlen(session_data.req[i].out.header.iov_base) + 1;
}
/* send first message */
for (i = 0; i < QUEUE_DEPTH; i++) {
xio_send_request(session_data.conn, &session_data.req[i]);
session_data.nsent++;
}
/* event dispatcher is now running */
xio_context_run_loop(session_data.ctx, XIO_INFINITE);
/* normal exit phase */
fprintf(stdout, "exit signaled\n");
/* free the message */
for (i = 0; i < QUEUE_DEPTH; i++)
free(session_data.req[i].out.header.iov_base);
/* free the context */
xio_context_destroy(session_data.ctx);
xio_shutdown();
printf("good bye\n");
return 0;
}
/*---------------------------------------------------------------------------*/
int main(int argc, char *argv[])
{
struct xio_session *session;
char url[256];
struct session_data session_data;
int i = 0;
struct event timeout;
struct event xio_event;
struct timeval tv;
struct xio_poll_params poll_params;
struct xio_session_params params;
if (argc < 3) {
printf("Usage: %s <host> <port> <transport:optional>\n",
argv[0]);
exit(1);
}
memset(&session_data, 0, sizeof(session_data));
memset(¶ms, 0, sizeof(params));
/* initialize library */
xio_init();
/* create thread context for the client */
session_data.ctx = xio_context_create(NULL, 0, -1);
/* get poll parameters for libevent */
xio_context_get_poll_params(session_data.ctx, &poll_params);
/* create url to connect to */
if (argc > 3)
sprintf(url, "%s://%s:%s", argv[3], argv[1], argv[2]);
else
sprintf(url, "rdma://%s:%s", argv[1], argv[2]);
params.type = XIO_SESSION_CLIENT;
params.ses_ops = &ses_ops;
params.user_context = &session_data;
params.uri = url;
session = xio_session_create(¶ms);
/* connect the session */
session_data.conn = xio_connect(session, session_data.ctx,
0, NULL, &session_data);
/* create "hello world" message */
for (i = 0; i < QUEUE_DEPTH; i++) {
memset(&session_data.req[i], 0, sizeof(session_data.req[i]));
/* header */
session_data.req[i].out.header.iov_base =
strdup("hello world header request");
session_data.req[i].out.header.iov_len =
strlen(session_data.req[i].out.header.iov_base) + 1;
/* iovec[0]*/
session_data.req[i].out.sgl_type = XIO_SGL_TYPE_IOV;
session_data.req[i].out.data_iov.max_nents = XIO_IOVLEN;
session_data.req[i].out.data_iov.sglist[0].iov_base =
strdup("hello world iovec request");
session_data.req[i].out.data_iov.sglist[0].iov_len =
strlen(session_data.req[i].out.data_iov.sglist[0].iov_base) + 1;
session_data.req[i].out.data_iov.nents = 1;
}
/* send first message */
for (i = 0; i < QUEUE_DEPTH; i++) {
xio_send_request(session_data.conn, &session_data.req[i]);
session_data.nsent++;
}
/* Initialize the event library */
session_data.evbase = event_base_new();
/* Initialize one timer event */
event_assign(&timeout, session_data.evbase, -1,
EV_PERSIST, timeout_cb, (void *)&timeout);
evutil_timerclear(&tv);
tv.tv_sec = 2;
event_add(&timeout, &tv);
event_assign(&xio_event, session_data.evbase, poll_params.fd,
EV_READ|EV_PERSIST, xio_event_handler,
(void *)&poll_params);
/* Add it to the active events, without a timeout */
event_add(&xio_event, NULL);
event_base_dispatch(session_data.evbase);
fprintf(stdout, "exit signaled\n");
event_base_free(session_data.evbase);
/* free the message */
for (i = 0; i < QUEUE_DEPTH; i++) {
free(session_data.req[i].out.header.iov_base);
free(session_data.req[i].out.data_iov.sglist[0].iov_base);
}
/* free the context */
xio_context_destroy(session_data.ctx);
xio_shutdown();
printf("good bye\n");
return 0;
}
/*---------------------------------------------------------------------------*/
static int xio_client_main(void *data)
{
char url[256];
struct xio_session_params params;
struct xio_context_params ctx_params;
struct xio_connection_params cparams;
int error;
int retval = 0;
atomic_add(2, &module_state);
print_counter = PRINT_COUNTER;
print_test_config(&test_config);
memset(¶ms, 0, sizeof(params));
memset(&cparams, 0, sizeof(cparams));
/* prepare buffers for this test */
if (msg_api_init(&msg_params,
test_config.hdr_len, test_config.data_len, 0) != 0) {
pr_err("msg_api_init failed\n");
return -1;
}
pool = msg_pool_alloc(MAX_POOL_SIZE, 1, 1);
if (!pool) {
pr_err("msg_pool_alloc failed\n");
goto cleanup;
}
/* create thread context for the server */
memset(&ctx_params, 0, sizeof(ctx_params));
ctx_params.flags = XIO_LOOP_GIVEN_THREAD;
ctx_params.worker = current;
ctx = xio_context_create(&ctx_params,
POLLING_TIMEOUT, cpu);
if (!ctx) {
pr_err("context open failed\n");
goto cleanup;
}
sprintf(url, "%s://%s:%d",
test_config.transport,
test_config.server_addr,
test_config.server_port);
params.type = XIO_SESSION_CLIENT;
params.ses_ops = &ses_ops;
params.uri = url;
g_session = xio_session_create(¶ms);
if (!g_session)
pr_err("session creation failed\n");
cparams.session = g_session;
cparams.ctx = ctx;
cparams.conn_idx = test_config.conn_idx;
/* connect the session */
g_connection = xio_connect(&cparams);
/* the default xio supplied main loop */
if (atomic_add_unless(&module_state, 4, 0x83))
retval = xio_context_run_loop(ctx);
atomic_sub(4, &module_state);
if (retval != 0) {
error = xio_errno();
pr_err("running event loop failed. reason %d - (%s)\n",
error, xio_strerror(error));
xio_assert(retval == 0);
}
/* normal exit phase */
pr_info("exit signaled\n");
xio_context_destroy(ctx);
msg_pool_free(pool);
cleanup:
msg_api_free(&msg_params);
pr_info("exit complete\n");
complete_and_exit(&cleanup_complete, 0);
return 0;
}
/* first message after new connection are going trough the server */
static int xio_on_new_message(struct xio_server *server,
struct xio_nexus *nexus,
int event,
union xio_nexus_event_data *event_data)
{
struct xio_session *session = NULL;
struct xio_connection *connection = NULL;
struct xio_connection *connection1 = NULL;
struct xio_task *task;
uint32_t tlv_type;
struct xio_session_params params;
int locked = 0;
if (!server || !nexus || !event_data || !event_data->msg.task) {
ERROR_LOG("server [new session]: failed " \
"invalid parameter\n");
return -1;
}
task = event_data->msg.task;
params.type = XIO_SESSION_SERVER;
params.initial_sn = 0;
params.ses_ops = &server->ops;
params.uri = server->uri;
params.private_data = NULL;
params.private_data_len = 0;
params.user_context = server->cb_private_data;
/* read the first message type */
tlv_type = xio_read_tlv_type(&event_data->msg.task->mbuf);
if (tlv_type == XIO_SESSION_SETUP_REQ) {
/* create new session */
session = xio_session_create(¶ms);
if (!session) {
ERROR_LOG("server [new session]: failed " \
" allocating session failed\n");
return -1;
}
DEBUG_LOG("server [new session]: server:%p, " \
"session:%p, nexus:%p ,session_id:%d\n",
server, session, nexus, session->session_id);
/* get transport class routines */
session->validators_cls = xio_nexus_get_validators_cls(nexus);
connection =
xio_session_alloc_connection(session,
server->ctx, 0,
server->cb_private_data);
if (!connection) {
ERROR_LOG("server failed to allocate new connection\n");
goto cleanup;
}
connection1 = xio_session_assign_nexus(session, nexus);
if (!connection1) {
ERROR_LOG("server failed to assign new connection\n");
goto cleanup1;
}
connection = connection1;
xio_idr_add_uobj(usr_idr, session, "xio_session");
xio_idr_add_uobj(usr_idr, connection, "xio_connection");
xio_connection_set_state(connection,
XIO_CONNECTION_STATE_ONLINE);
xio_connection_keepalive_start(connection);
task->session = session;
task->connection = connection;
} else if (tlv_type == XIO_CONNECTION_HELLO_REQ) {
struct xio_session *session1;
/* find the old session without lock */
session = xio_find_session(event_data->msg.task);
if (!session) {
ERROR_LOG("server [new connection]: failed " \
"session not found. server:%p\n",
server);
xio_nexus_close(nexus, NULL);
return -1;
}
/* lock it and retry find */
mutex_lock(&session->lock);
/* session before destruction - try to lock before continue */
session1 = xio_find_session(event_data->msg.task);
if (!session1) {
ERROR_LOG("server [new connection]: failed " \
"session not found. server:%p\n",
server);
xio_nexus_close(nexus, NULL);
mutex_unlock(&session->lock);
return -1;
}
locked = 1;
task->session = session;
DEBUG_LOG("server [new connection]: server:%p, " \
"session:%p, nexus:%p, session_id:%d\n",
server, session, nexus, session->session_id);
connection = xio_session_alloc_connection(
task->session,
server->ctx, 0,
server->cb_private_data);
if (!connection) {
ERROR_LOG("server failed to allocate new connection\n");
goto cleanup;
}
connection1 = xio_session_assign_nexus(task->session, nexus);
if (!connection1) {
ERROR_LOG("server failed to assign new connection\n");
goto cleanup1;
}
connection = connection1;
/* copy the server attributes to the connection */
xio_connection_set_ops(connection, &server->ops);
task->connection = connection;
/* This in a multiple-portal situation */
session->state = XIO_SESSION_STATE_ONLINE;
xio_connection_set_state(connection,
XIO_CONNECTION_STATE_ONLINE);
xio_connection_keepalive_start(connection);
xio_idr_add_uobj(usr_idr, connection, "xio_connection");
} else {
ERROR_LOG("server unexpected message\n");
return -1;
}
/* route the message to the session */
if (session)
xio_nexus_notify_observer(nexus, &session->observer,
event, event_data);
if (locked)
mutex_unlock(&session->lock);
return 0;
cleanup1:
if (connection)
xio_session_free_connection(connection);
cleanup:
if (session)
xio_session_destroy(session);
return -1;
}
/*---------------------------------------------------------------------------*/
static int xio_client_main(void *data)
{
char **argv = (char **)data;
struct xio_session *session;
struct xio_session_params params;
struct xio_context_params ctx_params;
struct xio_connection_params cparams;
char url[256];
struct xio_context *ctx;
struct session_data *session_data;
int i = 0;
atomic_add(2, &module_state);
session_data = vzalloc(sizeof(*session_data));
if (!session_data) {
/*pr_err("session_data alloc failed\n");*/
return 0;
}
/* create thread context for the client */
memset(&ctx_params, 0, sizeof(ctx_params));
ctx_params.flags = XIO_LOOP_GIVEN_THREAD;
ctx_params.worker = current;
ctx = xio_context_create(&ctx_params, 0, -1);
if (!ctx) {
vfree(session_data);
pr_err("context open filed\n");
return 0;
}
session_data->ctx = ctx;
/* create url to connect to */
sprintf(url, "rdma://%s:%s", argv[1], argv[2]);
memset(¶ms, 0, sizeof(params));
params.type = XIO_SESSION_CLIENT;
params.ses_ops = &ses_ops;
params.user_context = session_data;
params.uri = url;
session = xio_session_create(¶ms);
memset(&cparams, 0, sizeof(cparams));
cparams.session = session;
cparams.ctx = ctx;
cparams.conn_user_context = session_data;
/* connect the session */
session_data->session = session;
session_data->connection = xio_connect(&cparams);
/* create "hello world" message */
for (i = 0; i < QUEUE_DEPTH; i++) {
struct xio_vmsg *omsg;
void *buf;
omsg = &session_data->req[i].out;
memset(&session_data->req[i], 0, sizeof(session_data->req[i]));
/* header */
buf = kstrdup("hello world header request", GFP_KERNEL);
session_data->req[i].out.header.iov_base = buf;
session_data->req[i].out.header.iov_len = strlen(buf) + 1;
/* iovec[0]*/
omsg->sgl_type = XIO_SGL_TYPE_SCATTERLIST;
sg_alloc_table(&omsg->data_tbl, SG_TBL_LEN, GFP_KERNEL);
/* currently only one entry */
buf = kstrdup("hello world iovec request", GFP_KERNEL);
sg_init_one(omsg->data_tbl.sgl, buf, strlen(buf) + 1);
/* orig_nents is XIO_IOVLEN */
omsg->data_tbl.nents = 1;
}
/* send first message */
for (i = 0; i < QUEUE_DEPTH; i++)
xio_send_request(session_data->connection,
&session_data->req[i]);
g_session_data = session_data;
/* the default xio supplied main loop */
if (atomic_add_unless(&module_state, 4, 0x83))
xio_context_run_loop(ctx);
atomic_sub(4, &module_state);
/* normal exit phase */
pr_info("exit signaled\n");
/* free the message */
for (i = 0; i < QUEUE_DEPTH; i++) {
kfree(session_data->req[i].out.header.iov_base);
/* Currently need to release only one entry */
kfree(sg_virt(session_data->req[i].out.data_tbl.sgl));
sg_free_table(&session_data->req[i].out.data_tbl);
}
/* free the context */
xio_context_destroy(ctx);
vfree(session_data);
pr_info("good bye\n");
complete_and_exit(&cleanup_complete, 0);
return 0;
}
