static struct snobj *handle_create_module(struct snobj *arg)
{
const char *mclass_name;
const struct mclass *mclass;
struct module *module;
struct snobj *r;
mclass_name = snobj_eval_str(arg, "mclass");
if (!mclass_name)
return snobj_err(EINVAL, "Missing 'mclass' field in arg");
mclass = find_mclass(mclass_name);
if (!mclass)
return snobj_err(ENOENT, "No mclass '%s' found", mclass_name);
module = create_module(snobj_eval_str(arg, "name"), mclass,
snobj_eval(arg, "arg"), &r);
if (!module)
return r;
printf("Module %s created at %p\n", module->name, module);
r = snobj_map();
snobj_map_set(r, "name", snobj_str(module->name));
return r;
}
static struct snobj *handle_add_worker(struct snobj *q)
{
unsigned int wid;
unsigned int core;
struct snobj *t;
t = snobj_eval(q, "wid");
if (!t)
return snobj_err(EINVAL, "Missing 'wid' field");
wid = snobj_uint_get(t);
if (wid >= MAX_WORKERS)
return snobj_err(EINVAL, "'wid' must be between 0 and %d",
MAX_WORKERS - 1);
t = snobj_eval(q, "core");
if (!t)
return snobj_err(EINVAL, "Missing 'core' field");
core = snobj_uint_get(t);
if (!is_cpu_present(core))
return snobj_err(EINVAL, "Invalid core %d", core);
if (is_worker_active(wid))
return snobj_err(EEXIST, "worker:%d is already active", wid);
launch_worker(wid, core);
return NULL;
}
static struct snobj *handle_enable_tcpdump(struct snobj *q)
{
const char *m_name;
const char *fifo;
gate_t gate;
struct module *m;
int ret;
m_name = snobj_eval_str(q, "name");
gate = snobj_eval_uint(q, "gate");
fifo = snobj_eval_str(q, "fifo");
if (!m_name)
return snobj_err(EINVAL, "Missing 'name' field");
if ((m = find_module(m_name)) == NULL)
return snobj_err(ENOENT, "No module '%s' found", m_name);
if (gate >= m->allocated_gates)
return snobj_err(EINVAL, "Gate '%hu' does not exist", gate);
ret = enable_tcpdump(fifo, m, gate);
if (ret < 0) {
return snobj_err(-ret, "Enabling tcpdump %s[%d] failed",
m_name, gate);
}
return NULL;
}
static struct snobj *handle_create_port(struct snobj *arg)
{
const char *driver_name;
const struct driver *driver;
struct port *port;
struct snobj *r;
struct snobj *err;
driver_name = snobj_eval_str(arg, "driver");
if (!driver_name)
return snobj_err(EINVAL, "Missing 'driver' field in arg");
driver = find_driver(driver_name);
if (!driver)
return snobj_err(ENOENT, "No port driver '%s' found",
driver_name);
port = create_port(snobj_eval_str(arg, "name"), driver,
snobj_eval(arg, "arg"), &err);
if (!port)
return err;
printf("Port %s created at %p\n", port->name, port);
r = snobj_map();
snobj_map_set(r, "name", snobj_str(port->name));
return r;
}
static struct snobj *handle_connect_modules(struct snobj *arg)
{
const char *m1_name;
const char *m2_name;
uint16_t gate;
struct module *m1;
struct module *m2;
int ret;
m1_name = snobj_eval_str(arg, "m1");
m2_name = snobj_eval_str(arg, "m2");
gate = snobj_eval_uint(arg, "gate");
if (!m1_name || !m2_name)
return snobj_err(EINVAL, "Missing 'm1' or 'm2' field in arg");
if ((m1 = find_module(m1_name)) == NULL)
return snobj_err(ENOENT, "No module '%s' found", m1_name);
if ((m2 = find_module(m2_name)) == NULL)
return snobj_err(ENOENT, "No module '%s' found", m2_name);
ret = connect_modules(m1, gate, m2);
if (ret < 0)
return snobj_err(-ret, "Connection '%s'[%d]->'%s' failed",
m1_name, gate, m2_name);
printf("%s[%d] -> %s\n", m1_name, gate, m2_name);
return NULL;
}
static struct snobj *handle_get_tc_stats(struct snobj *q)
{
const char *tc_name;
struct tc *c;
struct snobj *r;
tc_name = snobj_str_get(q);
if (!tc_name)
return snobj_err(EINVAL, "Argument must be a name in str");
c = ns_lookup(NS_TYPE_TC, tc_name);
if (!c)
return snobj_err(ENOENT, "No TC '%s' found", tc_name);
r = snobj_map();
snobj_map_set(r, "timestamp", snobj_double(get_epoch_time()));
snobj_map_set(r, "count",
snobj_uint(c->stats.usage[RESOURCE_CNT]));
snobj_map_set(r, "cycles",
snobj_uint(c->stats.usage[RESOURCE_CYCLE]));
snobj_map_set(r, "packets",
snobj_uint(c->stats.usage[RESOURCE_PACKET]));
snobj_map_set(r, "bits",
snobj_uint(c->stats.usage[RESOURCE_BIT]));
return r;
}
static struct snobj *handle_disable_tcpdump(struct snobj *arg)
{
const char *m_name;
uint16_t gate;
struct module *m;
int ret;
m_name = snobj_eval_str(arg, "name");
gate = snobj_eval_uint(arg, "gate");
if (!m_name)
return snobj_err(EINVAL, "Missing 'name' field in arg");
if ((m = find_module(m_name)) == NULL)
return snobj_err(ENOENT, "No module '%s' found", m_name);
if (gate >= m->allocated_gates)
return snobj_err(EINVAL, "Gate '%hu' does not exist", gate);
ret = disable_tcpdump(m, gate);
if (ret < 0) {
return snobj_err(-ret, "Disabling tcpdump %s[%d] failed",
m_name, gate);
}
return NULL;
}
static struct snobj *handle_disconnect_modules(struct snobj *arg)
{
const char *m_name;
uint16_t gate;
struct module *m;
int ret;
m_name = snobj_eval_str(arg, "name");
gate = snobj_eval_uint(arg, "gate");
if (!m_name)
return snobj_err(EINVAL, "Missing 'name' field in arg");
if ((m = find_module(m_name)) == NULL)
return snobj_err(ENOENT, "No module '%s' found", m_name);
ret = disconnect_modules(m, gate);
if (ret < 0)
return snobj_err(-ret, "Disconnection '%s'[%d] failed",
m_name, gate);
printf("%s[%d] -> <dead end>\n", m_name, gate);
return NULL;
}
static struct snobj *queue_out_init(struct module *m, struct snobj *arg)
{
struct queue_out_priv *priv = get_priv(m);
struct snobj *t;
const char *port_name;
int ret;
if (!arg || snobj_type(arg) != TYPE_MAP)
return snobj_err(EINVAL, "Argument must be a map");
t = snobj_eval(arg, "port");
if (!t || !(port_name = snobj_str_get(t)))
return snobj_err(EINVAL, "Field 'port' must be specified");
t = snobj_eval(arg, "qid");
if (!t || snobj_type(t) != TYPE_INT)
return snobj_err(EINVAL, "Field 'qid' must be specified");
priv->qid = snobj_uint_get(t);
priv->port = find_port(port_name);
if (!priv->port)
return snobj_err(ENODEV, "Port %s not found", port_name);
ret = acquire_queues(priv->port, m, PACKET_DIR_OUT, &priv->qid, 1);
if (ret < 0)
return snobj_errno(-ret);
priv->send_pkts = priv->port->driver->send_pkts;
return NULL;
}
static struct snobj *docker_container_pid(char *cid, int *container_pid)
{
char buf[1024];
FILE *fp;
int ret;
int exit_code;
if (!cid)
return snobj_err(EINVAL, "field 'docker' should be " \
"a containder ID or name in string");
ret = snprintf(buf, sizeof(buf),
"docker inspect --format '{{.State.Pid}}' " \
"%s 2>&1", cid);
if (ret >= sizeof(buf))
return snobj_err(EINVAL, "The specified Docker " \
"container ID or name is too long");
fp = popen(buf, "r");
if (!fp)
return snobj_err_details(ESRCH,
snobj_str_fmt("popen() errno=%d (%s)",
errno, strerror(errno)),
"Command 'docker' is not available. " \
"(not installed?)");
ret = fread(buf, 1, sizeof(buf) - 1, fp);
if (ret == 0)
return snobj_err(ENOENT, "Cannot find the PID of " \
"container %s", cid);
buf[ret] = '\0';
ret = pclose(fp);
exit_code = WEXITSTATUS(ret);
if (exit_code != 0 || sscanf(buf, "%d", container_pid) == 0) {
struct snobj *details = snobj_map();
snobj_map_set(details, "exit_code", snobj_int(exit_code));
snobj_map_set(details, "docker_err", snobj_str(buf));
return snobj_err_details(ESRCH, details,
"Cannot find the PID of container %s", cid);
}
return NULL;
}
static struct snobj *handle_get_module_info(struct snobj *arg)
{
const char *m_name;
struct module *m;
struct snobj *r;
struct snobj *gates;
m_name = snobj_str_get(arg);
if (!m_name)
return snobj_err(EINVAL, "Argument must be a name in str");
if ((m = find_module(m_name)) == NULL)
return snobj_err(ENOENT, "No module '%s' found", m_name);
r = snobj_map();
gates = snobj_list();
snobj_map_set(r, "name", snobj_str(m->name));
snobj_map_set(r, "mclass", snobj_str(m->mclass->name));
if (m->mclass->get_desc)
snobj_map_set(r, "desc", m->mclass->get_desc(m));
if (m->mclass->get_dump)
snobj_map_set(r, "dump", m->mclass->get_dump(m));
for (int i = 0; i < m->allocated_gates; i++) {
if (m->gates[i].m) {
struct snobj *gate = snobj_map();
snobj_map_set(gate, "gate", snobj_uint(i));
#if TRACK_GATES
snobj_map_set(gate, "cnt",
snobj_uint(m->gates[i].cnt));
snobj_map_set(gate, "pkts",
snobj_uint(m->gates[i].pkts));
snobj_map_set(gate, "timestamp",
snobj_double(get_epoch_time()));
#endif
snobj_map_set(gate, "name", snobj_str(m->gates[i].m->name));
snobj_list_add(gates, gate);
}
}
snobj_map_set(r, "gates", gates);
return r;
}
static struct snobj *handle_attach_task(struct snobj *q)
{
const char *m_name;
const char *tc_name;
task_id_t tid;
struct module *m;
struct task *t;
m_name = snobj_eval_str(q, "name");
if (!m_name)
return snobj_err(EINVAL, "Missing 'name' field");
if ((m = find_module(m_name)) == NULL)
return snobj_err(ENOENT, "No module '%s' found", m_name);
tid = snobj_eval_uint(q, "taskid");
if (tid >= MAX_TASKS_PER_MODULE)
return snobj_err(EINVAL, "'taskid' must be between 0 and %d",
MAX_TASKS_PER_MODULE - 1);
if ((t = m->tasks[tid]) == NULL)
return snobj_err(ENOENT, "Task %s:%hu does not exist",
m_name, tid);
tc_name = snobj_eval_str(q, "tc");
if (tc_name) {
struct tc *c;
c = ns_lookup(NS_TYPE_TC, tc_name);
if (!c)
return snobj_err(ENOENT, "No TC '%s' found", tc_name);
task_attach(t, c);
} else {
int wid; /* TODO: worker_id_t */
if (task_is_attached(t))
return snobj_err(EBUSY, "Task %s:%hu is already "
"attached to a TC", m_name, tid);
wid = snobj_eval_uint(q, "wid");
if (wid >= MAX_WORKERS)
return snobj_err(EINVAL, "'wid' must be between 0 and %d",
MAX_WORKERS - 1);
if (!is_worker_active(wid))
return snobj_err(EINVAL, "Worker %d does not exist", wid);
assign_default_tc(wid, t);
}
return NULL;
}
static struct snobj *handle_destroy_module(struct snobj *arg)
{
const char *m_name;
struct module *m;
m_name = snobj_str_get(arg);
if (!m_name)
return snobj_err(EINVAL, "Argument must be a name in str");
if ((m = find_module(m_name)) == NULL)
return snobj_err(ENOENT, "No module '%s' found", m_name);
destroy_module(m);
return NULL;
}
static struct snobj *port_out_init(struct module *m, struct snobj *arg)
{
struct port_out_priv *priv = get_priv(m);
const char *port_name;
port_name = snobj_str_get(arg);
if (!port_name)
return snobj_err(EINVAL, "Argument must be a string");
priv->port = find_port(port_name);
if (!priv->port)
return snobj_err(ENODEV, "Port %s not found", port_name);
acquire_queue(priv->port, PACKET_DIR_OUT, 0 /* XXX */, m);
return NULL;
}
struct snobj *handle_request(struct client *c, struct snobj *q)
{
struct snobj *r = NULL;
const char *s;
#if 0
printf("Request:\n");
snobj_dump(q);
#endif
if (q->type != TYPE_MAP) {
r = snobj_err(EINVAL, "The message must be a map");
goto reply;
}
s = snobj_eval_str(q, "to");
if (!s) {
r = snobj_str("There is no 'to' field");
goto reply;
}
if (strcmp(s, "softnic") == 0) {
r = handle_snobj_softnic(q);
} else if (strcmp(s, "module") == 0) {
r = handle_snobj_module(q);
} else
r = snobj_err(EINVAL, "Unknown destination in 'to': %s", s);
reply:
/* No response was made? (normally means "success") */
if (!r)
r = snobj_nil();
#if 0
printf("Response:\n");
snobj_dump(r);
#endif
return r;
}
static struct snobj *handle_get_port_stats(struct snobj *arg)
{
const char *port_name;
struct port *port;
port_stats_t stats;
struct snobj *r;
struct snobj *inc;
struct snobj *out;
port_name = snobj_str_get(arg);
if (!port_name)
return snobj_err(EINVAL, "Argument must be a name in str");
port = find_port(port_name);
if (!port)
return snobj_err(ENOENT, "No port `%s' found", port_name);
get_port_stats(port, &stats);
inc = snobj_map();
snobj_map_set(inc, "packets", snobj_uint(stats[PACKET_DIR_INC].packets));
snobj_map_set(inc, "dropped", snobj_uint(stats[PACKET_DIR_INC].dropped));
snobj_map_set(inc, "bytes", snobj_uint(stats[PACKET_DIR_INC].bytes));
out = snobj_map();
snobj_map_set(out, "packets", snobj_uint(stats[PACKET_DIR_OUT].packets));
snobj_map_set(out, "dropped", snobj_uint(stats[PACKET_DIR_OUT].dropped));
snobj_map_set(out, "bytes", snobj_uint(stats[PACKET_DIR_OUT].bytes));
r = snobj_map();
snobj_map_set(r, "inc", inc);
snobj_map_set(r, "out", out);
snobj_map_set(r, "timestamp", snobj_double(get_epoch_time()));
return r;
}
static struct snobj *handle_destroy_port(struct snobj *arg)
{
const char *port_name;
struct port *port;
int ret;
port_name = snobj_str_get(arg);
if (!port_name)
return snobj_err(EINVAL, "Argument must be a name in str");
port = find_port(port_name);
if (!port)
return snobj_err(ENOENT, "No port `%s' found", port_name);
ret = destroy_port(port);
if (ret)
return snobj_errno(-ret);
return NULL;
}
static struct snobj *handle_snobj_module(struct snobj *q)
{
const char *m_name;
const char *cmd;
struct module *m;
m_name = snobj_eval_str(q, "name");
if (!m_name)
return snobj_err(EINVAL, "Missing module name field 'name'");
if ((m = find_module(m_name)) == NULL)
return snobj_err(ENOENT, "No module '%s' found", m_name);
cmd = snobj_eval_str(q, "cmd");
if (strcmp(cmd, "query") == 0) {
struct snobj *arg;
if (!m->mclass->query)
return snobj_err(ENOTSUP,
"Module '%s' does not support queries",
m_name);
arg = snobj_eval(q, "arg");
if (!arg) {
struct snobj *ret;
arg = snobj_nil();
ret = m->mclass->query(m, arg);
snobj_free(arg);
return ret;
}
return m->mclass->query(m, arg);
} else
return snobj_err(ENOTSUP, "Not supported command '%s'", cmd);
}
static struct snobj *port_inc_init(struct module *m, struct snobj *arg)
{
struct port_inc_priv *priv = get_priv(m);
const char *port_name;
task_id_t ret;
if (!arg || !(port_name = snobj_str_get(arg)))
return snobj_err(EINVAL, "Argument must be a port name " \
"(string)");
priv->port = find_port(port_name);
if (!priv->port)
return snobj_err(ENODEV, "Port %s not found", port_name);
ret = register_task(m, NULL);
if (ret == INVALID_TASK_ID)
return snobj_err(ENOMEM, "Task creation failed");
acquire_queue(priv->port, PACKET_DIR_INC, 0 /* XXX */, m);
return NULL;
}
static struct snobj *handle_snobj_softnic(struct snobj *q)
{
struct snobj *arg;
const char *s;
s = snobj_eval_str(q, "cmd");
if (!s)
return snobj_err(EINVAL, "Missing 'cmd' field");
arg = snobj_map_get(q, "arg");
for (int i = 0; sn_handlers[i].cmd != NULL; i++) {
if (strcmp(s, sn_handlers[i].cmd) != 0)
continue;
if (sn_handlers[i].pause_needed && is_any_worker_running())
return snobj_err(EBUSY, "There is a running worker");
return sn_handlers[i].func(arg);
}
return snobj_err(ENOTSUP, "Unknown command in 'cmd': '%s'", s);
}
static struct snobj *handle_add_tc(struct snobj *q)
{
const char *tc_name;
int wid;
struct tc_params params;
struct tc *c;
tc_name = snobj_eval_str(q, "name");
if (!tc_name)
return snobj_err(EINVAL, "Missing 'name' field");
if (!ns_is_valid_name(tc_name))
return snobj_err(EINVAL, "'%s' is an invalid name", tc_name);
if (ns_name_exists(tc_name))
return snobj_err(EINVAL, "Name '%s' already exists", tc_name);
wid = snobj_eval_uint(q, "wid");
if (wid >= MAX_WORKERS)
return snobj_err(EINVAL,
"'wid' must be between 0 and %d",
MAX_WORKERS - 1);
if (!is_worker_active(wid))
return snobj_err(EINVAL, "worker:%d does not exist", wid);
memset(¶ms, 0, sizeof(params));
strcpy(params.name, tc_name);
params.priority = snobj_eval_int(q, "priority");
if (params.priority == DEFAULT_PRIORITY)
return snobj_err(EINVAL, "Priority %d is reserved",
DEFAULT_PRIORITY);
/* TODO */
params.share = 1;
params.share_resource = RESOURCE_CNT;
c = tc_init(workers[wid]->s, ¶ms);
if (is_err(c))
return snobj_err(-ptr_to_err(c), "tc_init() failed");
tc_join(c);
return NULL;
}
static struct snobj *handle_reset_tcs(struct snobj *q)
{
struct ns_iter iter;
struct tc *c;
struct tc **c_arr;
size_t arr_slots = 1024;
int n = 0;
c_arr = malloc(arr_slots * sizeof(struct tc *));
ns_init_iterator(&iter, NS_TYPE_TC);
while ((c = (struct tc *)ns_next(&iter)) != NULL) {
if (n >= arr_slots) {
arr_slots *= 2;
c_arr = realloc(c_arr, arr_slots * sizeof(struct tc *));
}
c_arr[n] = c;
n++;
}
ns_release_iterator(&iter);
for (int i = 0; i < n; i++) {
c = c_arr[i];
if (c->num_tasks) {
free(c_arr);
return snobj_err(EBUSY, "TC %s still has %d tasks",
c->name, c->num_tasks);
}
if (c->auto_free)
continue;
tc_leave(c);
tc_dec_refcnt(c);
}
free(c_arr);
return NULL;
}
static struct snobj *handle_not_implemented(struct snobj *q)
{
return snobj_err(ENOTSUP, "Not implemented yet");
}
static struct snobj *handle_list_tcs(struct snobj *q)
{
struct snobj *r;
struct snobj *t;
unsigned int wid_filter = MAX_WORKERS;
struct ns_iter iter;
struct tc *c;
t = snobj_eval(q, "wid");
if (t) {
wid_filter = snobj_uint_get(t);
if (wid_filter >= MAX_WORKERS)
return snobj_err(EINVAL,
"'wid' must be between 0 and %d",
MAX_WORKERS - 1);
if (!is_worker_active(wid_filter))
return snobj_err(EINVAL, "worker:%d does not exist",
wid_filter);
}
r = snobj_list();
ns_init_iterator(&iter, NS_TYPE_TC);
while ((c = (struct tc *)ns_next(&iter)) != NULL) {
int wid;
if (wid_filter < MAX_WORKERS) {
if (workers[wid_filter]->s != c->s)
continue;
wid = wid_filter;
} else {
for (wid = 0; wid < MAX_WORKERS; wid++)
if (is_worker_active(wid) &&
workers[wid]->s == c->s)
break;
}
struct snobj *elem = snobj_map();
snobj_map_set(elem, "name", snobj_str(c->name));
snobj_map_set(elem, "tasks", snobj_int(c->num_tasks));
snobj_map_set(elem, "parent", snobj_str(c->parent->name));
snobj_map_set(elem, "priority", snobj_int(c->priority));
if (wid < MAX_WORKERS)
snobj_map_set(elem, "wid", snobj_uint(wid));
else
snobj_map_set(elem, "wid", snobj_int(-1));
snobj_list_add(r, elem);
}
ns_release_iterator(&iter);
return r;
}
static struct snobj *set_ip_addr(struct port *p, int container_pid,
struct snobj *arg)
{
int child_pid;
int ret = 0;
if (snobj_type(arg) == TYPE_STR || snobj_type(arg) == TYPE_LIST) {
if (snobj_type(arg) == TYPE_LIST) {
if (arg->size == 0)
goto invalid_type;
for (int i = 0; i < arg->size; i++) {
struct snobj *addr = snobj_list_get(arg, i);
if (snobj_type(addr) != TYPE_STR)
goto invalid_type;
}
}
} else
goto invalid_type;
/* change network namespace if necessary */
if (container_pid) {
child_pid = fork();
if (child_pid < 0)
return snobj_errno(-child_pid);
if (child_pid == 0) {
char buf[1024];
int fd;
sprintf(buf, "/proc/%d/ns/net", container_pid);
fd = open(buf, O_RDONLY);
if (fd < 0) {
perror("open(/proc/pid/ns/net)");
exit(errno <= 255 ? errno: ENOMSG);
}
ret = setns(fd, 0);
if (ret < 0) {
perror("setns()");
exit(errno <= 255 ? errno: ENOMSG);
}
} else
goto wait_child;
}
switch (snobj_type(arg)) {
case TYPE_STR:
ret = set_ip_addr_single(p, snobj_str_get(arg));
if (ret < 0) {
if (container_pid) {
/* it must be the child */
assert(child_pid == 0);
exit(errno <= 255 ? errno: ENOMSG);
}
}
break;
case TYPE_LIST:
if (!arg->size)
goto invalid_type;
for (int i = 0; i < arg->size; i++) {
struct snobj *addr = snobj_list_get(arg, i);
ret = set_ip_addr_single(p, snobj_str_get(addr));
if (ret < 0) {
if (container_pid) {
/* it must be the child */
assert(child_pid == 0);
exit(errno <= 255 ? errno: ENOMSG);
} else
break;
}
}
break;
default:
assert(0);
}
if (container_pid) {
if (child_pid == 0) {
if (ret < 0) {
ret = -ret;
exit(ret <= 255 ? ret: ENOMSG);
} else
exit(0);
} else {
int exit_status;
wait_child:
ret = waitpid(child_pid, &exit_status, 0);
if (ret >= 0) {
assert(ret == child_pid);
ret = -WEXITSTATUS(exit_status);
} else
perror("waitpid()");
}
}
if (ret < 0)
return snobj_err_details(-ret, arg,
"Failed to set IP addresses " \
"(incorrect IP address format?)");
return NULL;
invalid_type:
return snobj_err(EINVAL, "'ip_addr' must be a string or list " \
"of IPv4/v6 addresses (e.g., '10.0.20.1/24')");
}
static struct snobj *init_port(struct port *p, struct snobj *conf)
{
struct vport_priv *priv = get_port_priv(p);
int container_pid = 0;
int cpu;
int rxq;
int ret;
if (strlen(p->name) >= IFNAMSIZ)
return snobj_err(EINVAL, "Linux interface name should be " \
"shorter than %d characters", IFNAMSIZ);
if (snobj_eval_exists(conf, "docker")) {
struct snobj *err = docker_container_pid(
snobj_eval_str(conf, "docker"),
&container_pid);
if (err)
return err;
}
priv->fd = open("/dev/softnic", O_RDONLY);
if (priv->fd == -1)
return snobj_err(ENODEV, "the kernel module is not loaded");
priv->bar = alloc_bar(p, container_pid);
ret = ioctl(priv->fd, SN_IOC_CREATE_HOSTNIC,
rte_malloc_virt2phy(priv->bar));
if (ret < 0) {
close(priv->fd);
return snobj_errno_details(-ret,
snobj_str("SN_IOC_CREATE_HOSTNIC failure"));
}
if (snobj_eval_exists(conf, "ip_addr")) {
struct snobj *err = set_ip_addr(p, container_pid,
snobj_eval(conf, "ip_addr"));
if (err) {
deinit_port(p);
return err;
}
}
for (cpu = 0; cpu < SN_MAX_CPU; cpu++)
priv->map.cpu_to_txq[cpu] = cpu % p->num_queues[PACKET_DIR_INC];
cpu = 0;
for (rxq = 0; rxq < p->num_queues[PACKET_DIR_OUT]; rxq++) {
while (is_worker_core(cpu))
cpu = (cpu + 1) % sysconf(_SC_NPROCESSORS_ONLN);
priv->map.rxq_to_cpu[rxq] = cpu;
cpu = (cpu + 1) % sysconf(_SC_NPROCESSORS_ONLN);
}
ret = ioctl(priv->fd, SN_IOC_SET_QUEUE_MAPPING, &priv->map);
if (ret < 0)
perror("SN_IOC_SET_QUEUE_MAPPING");
return NULL;
}
