[PATCH 43/50] mars: add new file drivers/block/mars/xio_bricks/xio_server.c

Thomas Schoebel-Theuer
2014-07-01T21:59:59Z

drivers/block/mars/xio_bricks/xio_server.c | 801 +++++++++++++++++++++++++++++
1 file changed, 801 insertions(+)
create mode 100644 drivers/block/mars/xio_bricks/xio_server.c

diff --git a/drivers/block/mars/xio_bricks/xio_server.c b/drivers/block/mars/xio_bricks/xio_server.c
new file mode 100644
index 0000000..0b87f9f
--- /dev/null
+++ b/drivers/block/mars/xio_bricks/xio_server.c
@@ -0,0 +1,801 @@
+/* (c) 2010 Thomas Schoebel-Theuer / 1&1 Internet AG */
+
+/* Server brick (just for demonstration) */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/string.h>
+
+#define _STRATEGY
+#include <linux/brick/brick.h>
+#include <linux/xio.h>
+#include <linux/xio/xio_bio.h>
+#include <linux/xio/xio_aio.h>
+
+#include <linux/mars_light/light_strategy.h>
+
+/************************ own type definitions ***********************/
+
+#include <linux/xio/xio_server.h>
+
+#define NR_SOCKETS 3
+
+static struct xio_socket server_socket[NR_SOCKETS];
+static struct task_struct *server_thread[NR_SOCKETS];
+
+/************************ own helper functions ***********************/
+
+static
+int cb_thread(void *data)
+{
+ struct server_brick *brick = data;
+ struct xio_socket *sock = &brick->handler_socket;
+ bool aborted = false;
+ bool ok = xio_get_socket(sock);
+ int status = -EINVAL;
+
+ XIO_DBG("--------------- cb_thread starting on socket #%d, ok = %d\n", sock->s_debug_nr, ok);
+ if (!ok)
+ goto done;
+
+ brick->cb_running = true;
+ wake_up_interruptible(&brick->startup_event);
+
+ while (!brick_thread_should_stop() || !list_empty(&brick->cb_read_list) || !list_empty(&brick->cb_write_list) || atomic_read(&brick->in_flight) > 0) {
+ struct server_aio_aspect *aio_a;
+ struct aio_object *aio;
+ struct list_head *tmp;
+
+ wait_event_interruptible_timeout(
+ brick->cb_event,
+ !list_empty(&brick->cb_read_list) ||
+ !list_empty(&brick->cb_write_list),
+ 1 * HZ);
+
+ spin_lock(&brick->cb_lock);
+ tmp = brick->cb_write_list.next;
+ if (tmp == &brick->cb_write_list) {
+ tmp = brick->cb_read_list.next;
+ if (tmp == &brick->cb_read_list) {
+ spin_unlock(&brick->cb_lock);
+ brick_msleep(1000 / HZ);
+ continue;
+ }
+ }
+ list_del_init(tmp);
+ spin_unlock(&brick->cb_lock);
+
+ aio_a = container_of(tmp, struct server_aio_aspect, cb_head);
+ aio = aio_a->object;
+ status = -EINVAL;
+ CHECK_PTR(aio, err);
+
+ status = 0;
+ if (!aborted) {
+ down(&brick->socket_sem);
+ status = xio_send_cb(sock, aio);
+ up(&brick->socket_sem);
+ }
+
+err:
+ if (unlikely(status < 0) && !aborted) {
+ aborted = true;
+ XIO_WRN("cannot send response, status = %d\n", status);
+ /* Just shutdown the socket and forget all pending
+ * requests.
+ * The _client_ is responsible for resending
+ * any lost operations.
+ */
+ xio_shutdown_socket(sock);
+ }
+
+ if (aio_a->do_put) {
+ GENERIC_INPUT_CALL(brick->inputs[0], aio_put, aio);
+ atomic_dec(&brick->in_flight);
+ } else {
+ obj_free(aio);
+ }
+ }
+
+ xio_shutdown_socket(sock);
+ xio_put_socket(sock);
+
+done:
+ XIO_DBG("---------- cb_thread terminating, status = %d\n", status);
+ wake_up_interruptible(&brick->startup_event);
+ return status;
+}
+
+static
+void server_endio(struct generic_callback *cb)
+{
+ struct server_aio_aspect *aio_a;
+ struct aio_object *aio;
+ struct server_brick *brick;
+ int rw;
+
+ aio_a = cb->cb_private;
+ CHECK_PTR(aio_a, err);
+ aio = aio_a->object;
+ CHECK_PTR(aio, err);
+ LAST_CALLBACK(cb);
+ if (unlikely(cb != &aio->_object_cb))
+ XIO_ERR("bad cb pointer %p != %p\n", cb, &aio->_object_cb);
+
+ brick = aio_a->brick;
+ if (unlikely(!brick)) {
+ XIO_WRN("late IO callback -- cannot do anything\n");
+ goto out_return;
+ }
+
+ rw = aio->io_rw;
+
+ spin_lock(&brick->cb_lock);
+ if (rw)
+ list_add_tail(&aio_a->cb_head, &brick->cb_write_list);
+ else
+ list_add_tail(&aio_a->cb_head, &brick->cb_read_list);
+ spin_unlock(&brick->cb_lock);
+
+ wake_up_interruptible(&brick->cb_event);
+ goto out_return;
+err:
+ XIO_FAT("cannot handle callback - giving up\n");
+out_return:;
+}
+
+static
+int server_io(struct server_brick *brick, struct xio_socket *sock, struct xio_cmd *cmd)
+{
+ struct aio_object *aio;
+ struct server_aio_aspect *aio_a;
+ int amount;
+ int status = -ENOTRECOVERABLE;
+
+ if (!brick->cb_running || !brick->handler_running || !xio_socket_is_alive(sock))
+ goto done;
+
+ aio = server_alloc_aio(brick);
+ status = -ENOMEM;
+ aio_a = server_aio_get_aspect(brick, aio);
+ if (unlikely(!aio_a)) {
+ obj_free(aio);
+ goto done;
+ }
+
+ status = xio_recv_aio(sock, aio, cmd);
+ if (status < 0) {
+ obj_free(aio);
+ goto done;
+ }
+
+ aio_a->brick = brick;
+ SETUP_CALLBACK(aio, server_endio, aio_a);
+
+ amount = 0;
+ if (!aio->io_cs_mode < 2)
+ amount = (aio->io_len - 1) / 1024 + 1;
+ xio_limit_sleep(&server_limiter, amount);
+
+ status = GENERIC_INPUT_CALL(brick->inputs[0], aio_get, aio);
+ if (unlikely(status < 0)) {
+ XIO_WRN("aio_get execution error = %d\n", status);
+ SIMPLE_CALLBACK(aio, status);
+ status = 0; /* continue serving requests */
+ goto done;
+ }
+ aio_a->do_put = true;
+ atomic_inc(&brick->in_flight);
+ GENERIC_INPUT_CALL(brick->inputs[0], aio_io, aio);
+
+done:
+ return status;
+}
+
+static
+int _set_server_aio_params(struct xio_brick *_brick, void *private)
+{
+ struct aio_brick *aio_brick = (void *)_brick;
+
+ if (_brick->type != (void *)_aio_brick_type) {
+ XIO_ERR("bad brick type\n");
+ return -EINVAL;
+ }
+ aio_brick->o_creat = false;
+ aio_brick->o_direct = false;
+ aio_brick->o_fdsync = false;
+ XIO_INF("name = '%s' path = '%s'\n", _brick->brick_name, _brick->brick_path);
+ return 1;
+}
+
+static
+int _set_server_bio_params(struct xio_brick *_brick, void *private)
+{
+ struct bio_brick *bio_brick;
+
+ if (_brick->type == (void *)_aio_brick_type)
+ return _set_server_aio_params(_brick, private);
+ if (_brick->type != (void *)_bio_brick_type) {
+ XIO_ERR("bad brick type\n");
+ return -EINVAL;
+ }
+ bio_brick = (void *)_brick;
+ bio_brick->ra_pages = 0;
+ bio_brick->do_noidle = true;
+ bio_brick->do_sync = true;
+ bio_brick->do_unplug = true;
+ XIO_INF("name = '%s' path = '%s'\n", _brick->brick_name, _brick->brick_path);
+ return 1;
+}
+
+static
+int dummy_worker(struct mars_global *global, struct mars_dent *dent, bool prepare, bool direction)
+{
+ return 0;
+}
+
+static
+int handler_thread(void *data)
+{
+ struct server_brick *brick = data;
+ struct xio_socket *sock = &brick->handler_socket;
+ bool ok = xio_get_socket(sock);
+ int debug_nr;
+ int status = -EINVAL;
+
+ XIO_DBG("#%d --------------- handler_thread starting on socket %p\n", sock->s_debug_nr, sock);
+ if (!ok)
+ goto done;
+
+ brick->handler_running = true;
+ wake_up_interruptible(&brick->startup_event);
+
+ while (!brick_thread_should_stop() && xio_socket_is_alive(sock)) {
+ struct xio_cmd cmd = {};
+
+ status = -EINTR;
+ if (unlikely(!mars_global || !mars_global->global_power.button)) {
+ XIO_DBG("system is not alive\n");
+ break;
+ }
+
+ status = xio_recv_struct(sock, &cmd, xio_cmd_meta);
+ if (unlikely(status < 0)) {
+ XIO_WRN("#%d recv cmd status = %d\n", sock->s_debug_nr, status);
+ goto clean;
+ }
+ if (unlikely(!xio_socket_is_alive(sock))) {
+ XIO_WRN("#%d is dead\n", sock->s_debug_nr);
+ status = -EINTR;
+ goto clean;
+ }
+
+ status = -EPROTO;
+ switch (cmd.cmd_code & CMD_FLAG_MASK) {
+ case CMD_NOP:
+ status = 0;
+ XIO_DBG("#%d got NOP operation\n", sock->s_debug_nr);
+ break;
+ case CMD_NOTIFY:
+ status = 0;
+ from_remote_trigger();
+ break;
+ case CMD_GETINFO:
+ {
+ struct xio_info info = {};
+
+ status = GENERIC_INPUT_CALL(brick->inputs[0], xio_get_info, &info);
+ if (status < 0)
+ break;
+ down(&brick->socket_sem);
+ status = xio_send_struct(sock, &cmd, xio_cmd_meta);
+ if (status >= 0)
+ status = xio_send_struct(sock, &info, xio_info_meta);
+ up(&brick->socket_sem);
+ break;
+ }
+ case CMD_GETENTS:
+ {
+ struct mars_global local = {
+ .dent_anchor = LIST_HEAD_INIT(local.dent_anchor),
+ .brick_anchor = LIST_HEAD_INIT(local.brick_anchor),
+ .global_power = {
+ .button = true,
+ },
+ .main_event = __WAIT_QUEUE_HEAD_INITIALIZER(local.main_event),
+ };
+
+ status = -EINVAL;
+ if (unlikely(!cmd.cmd_str1))
+ break;
+
+ init_rwsem(&local.dent_mutex);
+ init_rwsem(&local.brick_mutex);
+
+ status = mars_dent_work(&local,
+ "/mars",
+ sizeof(struct mars_dent),
+ external_checker,
+ dummy_worker,
+ &local,
+ 3);
+
+ down(&brick->socket_sem);
+ status = xio_send_dent_list(sock, &local.dent_anchor);
+ up(&brick->socket_sem);
+
+ if (status < 0) {
+ XIO_WRN("#%d could not send dentry information, status = %d\n",
+ sock->s_debug_nr,
+ status);
+ }
+
+ xio_free_dent_all(&local, &local.dent_anchor);
+ break;
+ }
+ case CMD_CONNECT:
+ {
+ struct xio_brick *prev;
+ const char *path = cmd.cmd_str1;
+
+ status = -EINVAL;
+ CHECK_PTR(path, err);
+ CHECK_PTR_NULL(_bio_brick_type, err);
+
+ if (!brick->global || !mars_global || !mars_global->global_power.button) {
+ XIO_WRN("#%d system is not alive\n", sock->s_debug_nr);
+ goto err;
+ }
+
+ prev = make_brick_all(
+ brick->global,
+ NULL,
+ _set_server_bio_params,
+ NULL,
+ path,
+ (const struct generic_brick_type *)_bio_brick_type,
+ (const struct generic_brick_type *[]){},
+ 2, /* start always */
+ path,
+ (const char *[]){},
+ 0);
+ if (likely(prev)) {
+ status = generic_connect((void *)brick->inputs[0], (void *)prev->outputs[0]);
+ if (unlikely(status < 0))
+ XIO_ERR("#%d cannot connect to '%s'\n", sock->s_debug_nr, path);
+ prev->killme = true;
+ } else {
+ XIO_ERR("#%d cannot find brick '%s'\n", sock->s_debug_nr, path);
+ }
+
+err:
+ cmd.cmd_int1 = status;
+ down(&brick->socket_sem);
+ status = xio_send_struct(sock, &cmd, xio_cmd_meta);
+ up(&brick->socket_sem);
+ break;
+ }
+ case CMD_AIO:
+ {
+ status = server_io(brick, sock, &cmd);
+ break;
+ }
+ case CMD_CB:
+ XIO_ERR("#%d oops, as a server I should never get CMD_CB; something is wrong here - attack attempt??\n",
+ sock->s_debug_nr);
+ break;
+ default:
+ XIO_ERR("#%d unknown command %d\n", sock->s_debug_nr, cmd.cmd_code);
+ }
+clean:
+ brick_string_free(cmd.cmd_str1);
+ if (status < 0)
+ break;
+ }
+
+ xio_shutdown_socket(sock);
+ xio_put_socket(sock);
+
+done:
+ XIO_DBG("#%d handler_thread terminating, status = %d\n", sock->s_debug_nr, status);
+
+ debug_nr = sock->s_debug_nr;
+
+ XIO_DBG("#%d done.\n", debug_nr);
+ brick->killme = true;
+ return status;
+}
+
+/***************** own brick * input * output operations *****************/
+
+static int server_get_info(struct server_output *output, struct xio_info *info)
+{
+ struct server_input *input = output->brick->inputs[0];
+
+ return GENERIC_INPUT_CALL(input, xio_get_info, info);
+}
+
+static int server_io_get(struct server_output *output, struct aio_object *aio)
+{
+ struct server_input *input = output->brick->inputs[0];
+
+ return GENERIC_INPUT_CALL(input, aio_get, aio);
+}
+
+static void server_io_put(struct server_output *output, struct aio_object *aio)
+{
+ struct server_input *input = output->brick->inputs[0];
+
+ GENERIC_INPUT_CALL(input, aio_put, aio);
+}
+
+static void server_io_io(struct server_output *output, struct aio_object *aio)
+{
+ struct server_input *input = output->brick->inputs[0];
+
+ GENERIC_INPUT_CALL(input, aio_io, aio);
+}
+
+static int server_switch(struct server_brick *brick)
+{
+ struct xio_socket *sock = &brick->handler_socket;
+ int status = 0;
+
+ if (brick->power.button) {
+ static int version;
+ bool ok;
+
+ if (brick->power.on_led)
+ goto done;
+
+ ok = xio_get_socket(sock);
+ if (unlikely(!ok)) {
+ status = -ENOENT;
+ goto err;
+ }
+
+ xio_set_power_off_led((void *)brick, false);
+
+ brick->cb_thread = brick_thread_create(cb_thread, brick, "xio_cb%d", version);
+ if (unlikely(!brick->cb_thread)) {
+ XIO_ERR("cannot create cb thread\n");
+ status = -ENOENT;
+ goto err;
+ }
+
+ brick->handler_thread = brick_thread_create(handler_thread, brick, "xio_handler%d", version++);
+ if (unlikely(!brick->handler_thread)) {
+ XIO_ERR("cannot create handler thread\n");
+ brick_thread_stop(brick->cb_thread);
+ brick->cb_thread = NULL;
+ status = -ENOENT;
+ goto err;
+ }
+
+ xio_set_power_on_led((void *)brick, true);
+ } else if (!brick->power.off_led) {
+ struct task_struct *thread;
+
+ xio_set_power_on_led((void *)brick, false);
+
+ xio_shutdown_socket(sock);
+
+ thread = brick->handler_thread;
+ if (thread) {
+ brick->handler_thread = NULL;
+ brick->handler_running = false;
+ XIO_DBG("#%d stopping handler thread....\n", sock->s_debug_nr);
+ brick_thread_stop(thread);
+ }
+ thread = brick->cb_thread;
+ if (thread) {
+ brick->cb_thread = NULL;
+ brick->cb_running = false;
+ XIO_DBG("#%d stopping callback thread....\n", sock->s_debug_nr);
+ brick_thread_stop(thread);
+ }
+
+ xio_put_socket(sock);
+ XIO_DBG("#%d socket s_count = %d\n", sock->s_debug_nr, atomic_read(&sock->s_count));
+
+ xio_set_power_off_led((void *)brick, true);
+ }
+err:
+ if (unlikely(status < 0)) {
+ xio_set_power_off_led((void *)brick, true);
+ xio_shutdown_socket(sock);
+ xio_put_socket(sock);
+ }
+done:
+ return status;
+}
+
+/*************** informational * statistics **************/
+
+static
+char *server_statistics(struct server_brick *brick, int verbose)
+{
+ char *res = brick_string_alloc(1024);
+
+ snprintf(res, 1024,
+ "cb_running = %d handler_running = %d in_flight = %d\n",
+ brick->cb_running,
+ brick->handler_running,
+ atomic_read(&brick->in_flight));
+
+ return res;
+}
+
+static
+void server_reset_statistics(struct server_brick *brick)
+{
+}
+
+/*************** object * aspect constructors * destructors **************/
+
+static int server_aio_aspect_init_fn(struct generic_aspect *_ini)
+{
+ struct server_aio_aspect *ini = (void *)_ini;
+
+ INIT_LIST_HEAD(&ini->cb_head);
+ return 0;
+}
+
+static void server_aio_aspect_exit_fn(struct generic_aspect *_ini)
+{
+ struct server_aio_aspect *ini = (void *)_ini;
+
+ CHECK_HEAD_EMPTY(&ini->cb_head);
+}
+
+XIO_MAKE_STATICS(server);
+
+/********************* brick constructors * destructors *******************/
+
+static int server_brick_construct(struct server_brick *brick)
+{
+ init_waitqueue_head(&brick->startup_event);
+ init_waitqueue_head(&brick->cb_event);
+ sema_init(&brick->socket_sem, 1);
+ spin_lock_init(&brick->cb_lock);
+ INIT_LIST_HEAD(&brick->cb_read_list);
+ INIT_LIST_HEAD(&brick->cb_write_list);
+ return 0;
+}
+
+static int server_brick_destruct(struct server_brick *brick)
+{
+ CHECK_HEAD_EMPTY(&brick->cb_read_list);
+ CHECK_HEAD_EMPTY(&brick->cb_write_list);
+ return 0;
+}
+
+static int server_output_construct(struct server_output *output)
+{
+ return 0;
+}
+
+/************************ static structs ***********************/
+
+static struct server_brick_ops server_brick_ops = {
+ .brick_switch = server_switch,
+ .brick_statistics = server_statistics,
+ .reset_statistics = server_reset_statistics,
+};
+
+static struct server_output_ops server_output_ops = {
+ .xio_get_info = server_get_info,
+ .aio_get = server_io_get,
+ .aio_put = server_io_put,
+ .aio_io = server_io_io,
+};
+
+const struct server_input_type server_input_type = {
+ .type_name = "server_input",
+ .input_size = sizeof(struct server_input),
+};
+
+static const struct server_input_type *server_input_types[] = {
+ &server_input_type,
+};
+
+const struct server_output_type server_output_type = {
+ .type_name = "server_output",
+ .output_size = sizeof(struct server_output),
+ .master_ops = &server_output_ops,
+ .output_construct = &server_output_construct,
+};
+
+static const struct server_output_type *server_output_types[] = {
+ &server_output_type,
+};
+
+const struct server_brick_type server_brick_type = {
+ .type_name = "server_brick",
+ .brick_size = sizeof(struct server_brick),
+ .max_inputs = 1,
+ .max_outputs = 0,
+ .master_ops = &server_brick_ops,
+ .aspect_types = server_aspect_types,
+ .default_input_types = server_input_types,
+ .default_output_types = server_output_types,
+ .brick_construct = &server_brick_construct,
+ .brick_destruct = &server_brick_destruct,
+};
+EXPORT_SYMBOL_GPL(server_brick_type);
+
+/*********************************************************************/
+
+/* strategy layer */
+
+int server_show_statist = 0;
+EXPORT_SYMBOL_GPL(server_show_statist);
+
+static int _server_thread(void *data)
+{
+ struct mars_global server_global = {
+ .dent_anchor = LIST_HEAD_INIT(server_global.dent_anchor),
+ .brick_anchor = LIST_HEAD_INIT(server_global.brick_anchor),
+ .global_power = {
+ .button = true,
+ },
+ .main_event = __WAIT_QUEUE_HEAD_INITIALIZER(server_global.main_event),
+ };
+ struct xio_socket *my_socket = data;
+ char *id = my_id();
+ int status = 0;
+
+ init_rwsem(&server_global.dent_mutex);
+ init_rwsem(&server_global.brick_mutex);
+
+ XIO_INF("-------- server starting on host '%s' ----------\n", id);
+
+ while (!brick_thread_should_stop() &&
+ (!mars_global || !mars_global->global_power.button)) {
+ XIO_DBG("system did not start up\n");
+ brick_msleep(5000);
+ }
+
+ XIO_INF("-------- server now working on host '%s' ----------\n", id);
+
+ while (!brick_thread_should_stop() || !list_empty(&server_global.brick_anchor)) {
+ struct server_brick *brick = NULL;
+ struct xio_socket handler_socket = {};
+
+ server_global.global_version++;
+
+ if (server_show_statist)
+ show_statistics(&server_global, "server");
+
+ status = xio_kill_brick_when_possible(&server_global, &server_global.brick_anchor, false, NULL, true);
+ XIO_DBG("kill server bricks (when possible) = %d\n", status);
+
+ if (!mars_global || !mars_global->global_power.button) {
+ brick_msleep(1000);
+ continue;
+ }
+
+ status = xio_accept_socket(&handler_socket, my_socket);
+ if (unlikely(status < 0 || !xio_socket_is_alive(&handler_socket))) {
+ brick_msleep(500);
+ if (status == -EAGAIN)
+ continue; /* without error message */
+ XIO_WRN("accept status = %d\n", status);
+ brick_msleep(1000);
+ continue;
+ }
+ handler_socket.s_shutdown_on_err = true;
+
+ XIO_DBG("got new connection #%d\n", handler_socket.s_debug_nr);
+
+ brick = (void *)xio_make_brick(&server_global, NULL, &server_brick_type, "handler", "handler");
+ if (!brick) {
+ XIO_ERR("cannot create server instance\n");
+ xio_shutdown_socket(&handler_socket);
+ xio_put_socket(&handler_socket);
+ brick_msleep(2000);
+ continue;
+ }
+ memcpy(&brick->handler_socket, &handler_socket, sizeof(struct xio_socket));
+
+ /* TODO: check authorization.
+ */
+
+ brick->power.button = true;
+ status = server_switch(brick);
+ if (unlikely(status < 0)) {
+ XIO_ERR("cannot switch on server brick, status = %d\n", status);
+ goto err;
+ }
+
+ /* further references are usually held by the threads */
+ xio_put_socket(&brick->handler_socket);
+
+ /* fire and forget....
+ * the new instance is now responsible for itself.
+ */
+ brick = NULL;
+ brick_msleep(100);
+ continue;
+
+err:
+ if (brick) {
+ xio_shutdown_socket(&brick->handler_socket);
+ xio_put_socket(&brick->handler_socket);
+ status = xio_kill_brick((void *)brick);
+ if (status < 0)
+ BRICK_ERR("kill status = %d, giving up\n", status);
+ brick = NULL;
+ }
+ brick_msleep(2000);
+ }
+
+ XIO_INF("-------- cleaning up ----------\n");
+
+ xio_kill_brick_all(&server_global, &server_global.brick_anchor, false);
+
+ /* cleanup_mm(); */
+
+ XIO_INF("-------- done status = %d ----------\n", status);
+ return status;
+}
+
+/***************** module init stuff ************************/
+
+struct xio_limiter server_limiter = {
+ .lim_max_rate = 0,
+};
+EXPORT_SYMBOL_GPL(server_limiter);
+
+void exit_xio_server(void)
+{
+ int i;
+
+ XIO_INF("exit_server()\n");
+ server_unregister_brick_type();
+
+ for (i = 0; i < NR_SOCKETS; i++) {
+ if (server_thread[i]) {
+ XIO_INF("stopping server thread %d...\n", i);
+ brick_thread_stop(server_thread[i]);
+ }
+ XIO_INF("closing server socket %d...\n", i);
+ xio_put_socket(&server_socket[i]);
+ }
+}
+
+int __init init_xio_server(void)
+{
+ int i;
+
+ XIO_INF("init_server()\n");
+
+ for (i = 0; i < NR_SOCKETS; i++) {
+ struct sockaddr_storage sockaddr = {};
+ char tmp[16];
+ int status;
+
+ sprintf(tmp, ":%d", xio_net_default_port + i);
+ status = xio_create_sockaddr(&sockaddr, tmp);
+ if (unlikely(status < 0)) {
+ exit_xio_server();
+ return status;
+ }
+
+ status = xio_create_socket(&server_socket[i], &sockaddr, true);
+ if (unlikely(status < 0)) {
+ XIO_ERR("could not create server socket %d, status = %d\n", i, status);
+ exit_xio_server();
+ return status;
+ }
+
+ server_thread[i] = brick_thread_create(_server_thread, &server_socket[i], "xio_server_%d", i);
+ if (unlikely(!server_thread[i] || IS_ERR(server_thread[i]))) {
+ XIO_ERR("could not create server thread %d\n", i);
+ exit_xio_server();
+ return -ENOENT;
+ }
+ }
+
+ return server_register_brick_type();
+}
--
2.0.0