#include <vnet/session/application.h>
#include <vnet/session/application_interface.h>
#include <hs_apps/proxy.h>
+#include <vnet/tcp/tcp.h>
proxy_main_t proxy_main;
+#define TCP_MSS 1460
+
typedef struct
{
char uri[128];
}
}
+static proxy_session_t *
+proxy_get_active_open (proxy_main_t * pm, session_handle_t handle)
+{
+ proxy_session_t *ps = 0;
+ uword *p;
+
+ p = hash_get (pm->proxy_session_by_active_open_handle, handle);
+ if (p)
+ ps = pool_elt_at_index (pm->sessions, p[0]);
+ return ps;
+}
+
+static proxy_session_t *
+proxy_get_passive_open (proxy_main_t * pm, session_handle_t handle)
+{
+ proxy_session_t *ps = 0;
+ uword *p;
+
+ p = hash_get (pm->proxy_session_by_server_handle, handle);
+ if (p)
+ ps = pool_elt_at_index (pm->sessions, p[0]);
+ return ps;
+}
+
static void
-delete_proxy_session (session_t * s, int is_active_open)
+proxy_try_close_session (session_t * s, int is_active_open)
{
proxy_main_t *pm = &proxy_main;
proxy_session_t *ps = 0;
vnet_disconnect_args_t _a, *a = &_a;
- session_t *active_open_session = 0;
- session_t *server_session = 0;
- uword *p;
- u64 handle;
-
- clib_spinlock_lock_if_init (&pm->sessions_lock);
+ session_handle_t handle;
handle = session_handle (s);
+ clib_spinlock_lock_if_init (&pm->sessions_lock);
+
if (is_active_open)
{
- p = hash_get (pm->proxy_session_by_active_open_handle, handle);
- if (p == 0)
- {
- clib_warning ("proxy session for %s handle %lld (%llx) AWOL",
- is_active_open ? "active open" : "server",
- handle, handle);
- }
- else if (!pool_is_free_index (pm->sessions, p[0]))
+ ps = proxy_get_active_open (pm, handle);
+ ASSERT (ps != 0);
+
+ a->handle = ps->vpp_active_open_handle;
+ a->app_index = pm->active_open_app_index;
+ vnet_disconnect_session (a);
+ ps->ao_disconnected = 1;
+
+ if (!ps->po_disconnected)
{
- active_open_session = s;
- ps = pool_elt_at_index (pm->sessions, p[0]);
- if (ps->vpp_server_handle != ~0)
- server_session = session_get_from_handle (ps->vpp_server_handle);
+ ASSERT (ps->vpp_server_handle != SESSION_INVALID_HANDLE);
+ a->handle = ps->vpp_server_handle;
+ a->app_index = pm->server_app_index;
+ vnet_disconnect_session (a);
+ ps->po_disconnected = 1;
}
}
else
{
- p = hash_get (pm->proxy_session_by_server_handle, handle);
- if (p == 0)
- {
- clib_warning ("proxy session for %s handle %lld (%llx) AWOL",
- is_active_open ? "active open" : "server",
- handle, handle);
- }
- else if (!pool_is_free_index (pm->sessions, p[0]))
+ ps = proxy_get_passive_open (pm, handle);
+ ASSERT (ps != 0);
+
+ a->handle = ps->vpp_server_handle;
+ a->app_index = pm->server_app_index;
+ vnet_disconnect_session (a);
+ ps->po_disconnected = 1;
+
+ if (!ps->ao_disconnected && !ps->active_open_establishing)
{
- server_session = s;
- ps = pool_elt_at_index (pm->sessions, p[0]);
- if (ps->vpp_active_open_handle != ~0)
- active_open_session = session_get_from_handle
- (ps->vpp_active_open_handle);
+ /* Proxy session closed before active open */
+ if (ps->vpp_active_open_handle != SESSION_INVALID_HANDLE)
+ {
+ a->handle = ps->vpp_active_open_handle;
+ a->app_index = pm->active_open_app_index;
+ vnet_disconnect_session (a);
+ }
+ ps->ao_disconnected = 1;
}
}
+ clib_spinlock_unlock_if_init (&pm->sessions_lock);
+}
+
+static void
+proxy_session_free (proxy_session_t * ps)
+{
+ proxy_main_t *pm = &proxy_main;
+ if (CLIB_DEBUG > 0)
+ clib_memset (ps, 0xFE, sizeof (*ps));
+ pool_put (pm->sessions, ps);
+}
+
+static void
+proxy_try_delete_session (session_t * s, u8 is_active_open)
+{
+ proxy_main_t *pm = &proxy_main;
+ proxy_session_t *ps = 0;
+ session_handle_t handle;
- if (ps)
+ handle = session_handle (s);
+
+ clib_spinlock_lock_if_init (&pm->sessions_lock);
+
+ if (is_active_open)
{
- if (CLIB_DEBUG > 0)
- clib_memset (ps, 0xFE, sizeof (*ps));
- pool_put (pm->sessions, ps);
- }
+ ps = proxy_get_active_open (pm, handle);
+ ASSERT (ps != 0);
- if (active_open_session)
+ ps->vpp_active_open_handle = SESSION_INVALID_HANDLE;
+ hash_unset (pm->proxy_session_by_active_open_handle, handle);
+
+ if (ps->vpp_server_handle == SESSION_INVALID_HANDLE)
+ proxy_session_free (ps);
+ }
+ else
{
- a->handle = session_handle (active_open_session);
- a->app_index = pm->active_open_app_index;
- hash_unset (pm->proxy_session_by_active_open_handle,
- session_handle (active_open_session));
- vnet_disconnect_session (a);
+ ps = proxy_get_passive_open (pm, handle);
+ ASSERT (ps != 0);
+
+ ps->vpp_server_handle = SESSION_INVALID_HANDLE;
+ hash_unset (pm->proxy_session_by_server_handle, handle);
+
+ if (ps->vpp_active_open_handle == SESSION_INVALID_HANDLE)
+ {
+ if (!ps->active_open_establishing)
+ proxy_session_free (ps);
+ }
}
+ clib_spinlock_unlock_if_init (&pm->sessions_lock);
+}
+
+static int
+common_fifo_tuning_callback (session_t * s, svm_fifo_t * f,
+ session_ft_action_t act, u32 bytes)
+{
+ proxy_main_t *pm = &proxy_main;
- if (server_session)
+ segment_manager_t *sm = segment_manager_get (f->segment_manager);
+ fifo_segment_t *fs = segment_manager_get_segment (sm, f->segment_index);
+
+ u8 seg_usage = fifo_segment_get_mem_usage (fs);
+ u32 fifo_in_use = svm_fifo_max_dequeue_prod (f);
+ u32 fifo_size = svm_fifo_size (f);
+ u8 fifo_usage = fifo_in_use * 100 / fifo_size;
+ u8 update_size = 0;
+
+ ASSERT (act < SESSION_FT_ACTION_N_ACTIONS);
+
+ if (act == SESSION_FT_ACTION_ENQUEUED)
{
- a->handle = session_handle (server_session);
- a->app_index = pm->server_app_index;
- hash_unset (pm->proxy_session_by_server_handle,
- session_handle (server_session));
- vnet_disconnect_session (a);
+ if (seg_usage < pm->low_watermark && fifo_usage > 50)
+ update_size = fifo_in_use;
+ else if (seg_usage < pm->high_watermark && fifo_usage > 80)
+ update_size = fifo_in_use;
+
+ update_size = clib_min (update_size, sm->max_fifo_size - fifo_size);
+ if (update_size)
+ svm_fifo_set_size (f, fifo_size + update_size);
+ }
+ else /* dequeued */
+ {
+ if (seg_usage > pm->high_watermark || fifo_usage < 20)
+ update_size = bytes;
+ else if (seg_usage > pm->low_watermark && fifo_usage < 50)
+ update_size = (bytes / 2);
+
+ ASSERT (fifo_size >= 4096);
+ update_size = clib_min (update_size, fifo_size - 4096);
+ if (update_size)
+ svm_fifo_set_size (f, fifo_size - update_size);
}
- clib_spinlock_unlock_if_init (&pm->sessions_lock);
+ return 0;
}
static int
proxy_accept_callback (session_t * s)
{
proxy_main_t *pm = &proxy_main;
-
- s->session_state = SESSION_STATE_READY;
+ proxy_session_t *ps;
clib_spinlock_lock_if_init (&pm->sessions_lock);
+ pool_get_zero (pm->sessions, ps);
+ ps->vpp_server_handle = session_handle (s);
+ ps->vpp_active_open_handle = SESSION_INVALID_HANDLE;
+
+ hash_set (pm->proxy_session_by_server_handle, ps->vpp_server_handle,
+ ps - pm->sessions);
+
+ clib_spinlock_unlock_if_init (&pm->sessions_lock);
+
+ s->session_state = SESSION_STATE_READY;
+
return 0;
}
static void
proxy_disconnect_callback (session_t * s)
{
- delete_proxy_session (s, 0 /* is_active_open */ );
+ proxy_try_close_session (s, 0 /* is_active_open */ );
}
static void
proxy_reset_callback (session_t * s)
{
- clib_warning ("Reset session %U", format_session, s, 2);
- delete_proxy_session (s, 0 /* is_active_open */ );
+ proxy_try_close_session (s, 0 /* is_active_open */ );
}
static int
proxy_connected_callback (u32 app_index, u32 api_context,
- session_t * s, u8 is_fail)
+ session_t * s, session_error_t err)
{
clib_warning ("called...");
return -1;
static int
proxy_rx_callback (session_t * s)
{
- u32 max_dequeue;
- int actual_transfer __attribute__ ((unused));
- svm_fifo_t *tx_fifo, *rx_fifo;
proxy_main_t *pm = &proxy_main;
u32 thread_index = vlib_get_thread_index ();
- vnet_connect_args_t _a, *a = &_a;
+ svm_fifo_t *ao_tx_fifo;
proxy_session_t *ps;
- int proxy_index;
- uword *p;
- svm_fifo_t *active_open_tx_fifo;
ASSERT (s->thread_index == thread_index);
clib_spinlock_lock_if_init (&pm->sessions_lock);
- p = hash_get (pm->proxy_session_by_server_handle, session_handle (s));
- if (PREDICT_TRUE (p != 0))
+ ps = proxy_get_passive_open (pm, session_handle (s));
+ ASSERT (ps != 0);
+
+ if (PREDICT_TRUE (ps->vpp_active_open_handle != SESSION_INVALID_HANDLE))
{
clib_spinlock_unlock_if_init (&pm->sessions_lock);
- active_open_tx_fifo = s->rx_fifo;
+
+ ao_tx_fifo = s->rx_fifo;
/*
* Send event for active open tx fifo
*/
- if (svm_fifo_set_event (active_open_tx_fifo))
+ if (svm_fifo_set_event (ao_tx_fifo))
{
- u32 ao_thread_index = active_open_tx_fifo->master_thread_index;
- u32 ao_session_index = active_open_tx_fifo->master_session_index;
+ u32 ao_thread_index = ao_tx_fifo->master_thread_index;
+ u32 ao_session_index = ao_tx_fifo->master_session_index;
if (session_send_io_evt_to_thread_custom (&ao_session_index,
ao_thread_index,
SESSION_IO_EVT_TX))
clib_warning ("failed to enqueue tx evt");
}
+
+ if (svm_fifo_max_enqueue (ao_tx_fifo) <= TCP_MSS)
+ svm_fifo_add_want_deq_ntf (ao_tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
}
else
{
+ vnet_connect_args_t _a, *a = &_a;
+ svm_fifo_t *tx_fifo, *rx_fifo;
+ u32 max_dequeue, proxy_index;
+ int actual_transfer __attribute__ ((unused));
+
rx_fifo = s->rx_fifo;
tx_fifo = s->tx_fifo;
clib_memset (a, 0, sizeof (*a));
- pool_get (pm->sessions, ps);
- clib_memset (ps, 0, sizeof (*ps));
ps->server_rx_fifo = rx_fifo;
ps->server_tx_fifo = tx_fifo;
- ps->vpp_server_handle = session_handle (s);
-
+ ps->active_open_establishing = 1;
proxy_index = ps - pm->sessions;
- hash_set (pm->proxy_session_by_server_handle, ps->vpp_server_handle,
- proxy_index);
-
clib_spinlock_unlock_if_init (&pm->sessions_lock);
a->uri = (char *) pm->client_uri;
return 0;
}
+static void
+proxy_force_ack (void *handlep)
+{
+ transport_connection_t *tc;
+ session_t *ao_s;
+
+ ao_s = session_get_from_handle (pointer_to_uword (handlep));
+ tc = session_get_transport (ao_s);
+ tcp_send_ack ((tcp_connection_t *) tc);
+}
+
+static int
+proxy_tx_callback (session_t * proxy_s)
+{
+ proxy_main_t *pm = &proxy_main;
+ proxy_session_t *ps;
+ u32 min_free;
+
+ min_free = clib_min (svm_fifo_size (proxy_s->tx_fifo) >> 3, 128 << 10);
+ if (svm_fifo_max_enqueue (proxy_s->tx_fifo) < min_free)
+ {
+ svm_fifo_add_want_deq_ntf (proxy_s->tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
+ return 0;
+ }
+
+ clib_spinlock_lock_if_init (&pm->sessions_lock);
+
+ ps = proxy_get_passive_open (pm, session_handle (proxy_s));
+ ASSERT (ps != 0);
+
+ if (ps->vpp_active_open_handle == SESSION_INVALID_HANDLE)
+ return 0;
+
+ /* Force ack on active open side to update rcv wnd. Make sure it's done on
+ * the right thread */
+ void *arg = uword_to_pointer (ps->vpp_active_open_handle, void *);
+ session_send_rpc_evt_to_thread (ps->server_rx_fifo->master_thread_index,
+ proxy_force_ack, arg);
+
+ clib_spinlock_unlock_if_init (&pm->sessions_lock);
+
+ return 0;
+}
+
+static void
+proxy_cleanup_callback (session_t * s, session_cleanup_ntf_t ntf)
+{
+ if (ntf == SESSION_CLEANUP_TRANSPORT)
+ return;
+
+ proxy_try_delete_session (s, 0 /* is_active_open */ );
+}
+
static session_cb_vft_t proxy_session_cb_vft = {
.session_accept_callback = proxy_accept_callback,
.session_disconnect_callback = proxy_disconnect_callback,
.session_connected_callback = proxy_connected_callback,
.add_segment_callback = proxy_add_segment_callback,
.builtin_app_rx_callback = proxy_rx_callback,
- .session_reset_callback = proxy_reset_callback
+ .builtin_app_tx_callback = proxy_tx_callback,
+ .session_reset_callback = proxy_reset_callback,
+ .session_cleanup_callback = proxy_cleanup_callback,
+ .fifo_tuning_callback = common_fifo_tuning_callback
};
static int
active_open_connected_callback (u32 app_index, u32 opaque,
- session_t * s, u8 is_fail)
+ session_t * s, session_error_t err)
{
proxy_main_t *pm = &proxy_main;
proxy_session_t *ps;
u8 thread_index = vlib_get_thread_index ();
- if (is_fail)
- {
- clib_warning ("connection %d failed!", opaque);
- return 0;
- }
-
/*
* Setup proxy session handle.
*/
clib_spinlock_lock_if_init (&pm->sessions_lock);
ps = pool_elt_at_index (pm->sessions, opaque);
- ps->vpp_active_open_handle = session_handle (s);
+
+ /* Connection failed */
+ if (err)
+ {
+ vnet_disconnect_args_t _a, *a = &_a;
+
+ a->handle = ps->vpp_server_handle;
+ a->app_index = pm->server_app_index;
+ vnet_disconnect_session (a);
+ ps->po_disconnected = 1;
+ }
+ else
+ {
+ ps->vpp_active_open_handle = session_handle (s);
+ ps->active_open_establishing = 0;
+ }
+
+ /* Passive open session was already closed! */
+ if (ps->po_disconnected)
+ {
+ /* Setup everything for the cleanup notification */
+ hash_set (pm->proxy_session_by_active_open_handle,
+ ps->vpp_active_open_handle, opaque);
+ ps->ao_disconnected = 1;
+ clib_spinlock_unlock_if_init (&pm->sessions_lock);
+ return -1;
+ }
s->tx_fifo = ps->server_rx_fifo;
s->rx_fifo = ps->server_tx_fifo;
static void
active_open_reset_callback (session_t * s)
{
- delete_proxy_session (s, 1 /* is_active_open */ );
+ proxy_try_close_session (s, 1 /* is_active_open */ );
}
static int
static void
active_open_disconnect_callback (session_t * s)
{
- delete_proxy_session (s, 1 /* is_active_open */ );
+ proxy_try_close_session (s, 1 /* is_active_open */ );
}
static int
SESSION_IO_EVT_TX);
}
+ if (svm_fifo_max_enqueue (proxy_tx_fifo) <= TCP_MSS)
+ svm_fifo_add_want_deq_ntf (proxy_tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
+
return 0;
}
+static int
+active_open_tx_callback (session_t * ao_s)
+{
+ proxy_main_t *pm = &proxy_main;
+ transport_connection_t *tc;
+ session_handle_t handle;
+ proxy_session_t *ps;
+ session_t *proxy_s;
+ u32 min_free;
+ uword *p;
+
+ min_free = clib_min (svm_fifo_size (ao_s->tx_fifo) >> 3, 128 << 10);
+ if (svm_fifo_max_enqueue (ao_s->tx_fifo) < min_free)
+ {
+ svm_fifo_add_want_deq_ntf (ao_s->tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
+ return 0;
+ }
+
+ clib_spinlock_lock_if_init (&pm->sessions_lock);
+
+ handle = session_handle (ao_s);
+ p = hash_get (pm->proxy_session_by_active_open_handle, handle);
+ if (!p)
+ return 0;
+
+ if (pool_is_free_index (pm->sessions, p[0]))
+ return 0;
+
+ ps = pool_elt_at_index (pm->sessions, p[0]);
+ if (ps->vpp_server_handle == ~0)
+ return 0;
+
+ proxy_s = session_get_from_handle (ps->vpp_server_handle);
+
+ /* Force ack on proxy side to update rcv wnd */
+ tc = session_get_transport (proxy_s);
+ tcp_send_ack ((tcp_connection_t *) tc);
+
+ clib_spinlock_unlock_if_init (&pm->sessions_lock);
+
+ return 0;
+}
+
+static void
+active_open_cleanup_callback (session_t * s, session_cleanup_ntf_t ntf)
+{
+ if (ntf == SESSION_CLEANUP_TRANSPORT)
+ return;
+
+ proxy_try_delete_session (s, 1 /* is_active_open */ );
+}
+
/* *INDENT-OFF* */
static session_cb_vft_t active_open_clients = {
.session_reset_callback = active_open_reset_callback,
.session_connected_callback = active_open_connected_callback,
.session_accept_callback = active_open_create_callback,
.session_disconnect_callback = active_open_disconnect_callback,
- .builtin_app_rx_callback = active_open_rx_callback
+ .session_cleanup_callback = active_open_cleanup_callback,
+ .builtin_app_rx_callback = active_open_rx_callback,
+ .builtin_app_tx_callback = active_open_tx_callback,
+ .fifo_tuning_callback = common_fifo_tuning_callback
};
/* *INDENT-ON* */
a->options[APP_OPTIONS_SEGMENT_SIZE] = segment_size;
a->options[APP_OPTIONS_RX_FIFO_SIZE] = pm->fifo_size;
a->options[APP_OPTIONS_TX_FIFO_SIZE] = pm->fifo_size;
+ a->options[APP_OPTIONS_MAX_FIFO_SIZE] = pm->max_fifo_size;
+ a->options[APP_OPTIONS_HIGH_WATERMARK] = (u64) pm->high_watermark;
+ a->options[APP_OPTIONS_LOW_WATERMARK] = (u64) pm->low_watermark;
a->options[APP_OPTIONS_PRIVATE_SEGMENT_COUNT] = pm->private_segment_count;
a->options[APP_OPTIONS_PREALLOC_FIFO_PAIRS] =
pm->prealloc_fifos ? pm->prealloc_fifos : 0;
{
proxy_main_t *pm = &proxy_main;
vnet_app_attach_args_t _a, *a = &_a;
- u64 options[16];
+ u64 options[APP_OPTIONS_N_OPTIONS];
clib_memset (a, 0, sizeof (*a));
clib_memset (options, 0, sizeof (options));
options[APP_OPTIONS_SEGMENT_SIZE] = 512 << 20;
options[APP_OPTIONS_RX_FIFO_SIZE] = pm->fifo_size;
options[APP_OPTIONS_TX_FIFO_SIZE] = pm->fifo_size;
+ options[APP_OPTIONS_MAX_FIFO_SIZE] = pm->max_fifo_size;
+ options[APP_OPTIONS_HIGH_WATERMARK] = (u64) pm->high_watermark;
+ options[APP_OPTIONS_LOW_WATERMARK] = (u64) pm->low_watermark;
options[APP_OPTIONS_PRIVATE_SEGMENT_COUNT] = pm->private_segment_count;
options[APP_OPTIONS_PREALLOC_FIFO_PAIRS] =
pm->prealloc_fifos ? pm->prealloc_fifos : 0;
proxy_main_t *pm = &proxy_main;
char *default_server_uri = "tcp://0.0.0.0/23";
char *default_client_uri = "tcp://6.0.2.2/23";
- int rv;
- u64 tmp;
+ int rv, tmp32;
+ u64 tmp64;
pm->fifo_size = 64 << 10;
+ pm->max_fifo_size = 128 << 20;
+ pm->high_watermark = 80;
+ pm->low_watermark = 50;
pm->rcv_buffer_size = 1024;
pm->prealloc_fifos = 0;
pm->private_segment_count = 0;
pm->private_segment_size = 0;
pm->server_uri = 0;
pm->client_uri = 0;
+ if (vlib_num_workers ())
+ clib_spinlock_init (&pm->sessions_lock);
while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
{
- if (unformat (input, "fifo-size %d", &pm->fifo_size))
- pm->fifo_size <<= 10;
+ if (unformat (input, "fifo-size %U",
+ unformat_memory_size, &pm->fifo_size))
+ ;
+ else if (unformat (input, "max-fifo-size %U",
+ unformat_memory_size, &pm->max_fifo_size))
+ ;
+ else if (unformat (input, "high-watermark %d", &tmp32))
+ pm->high_watermark = (u8) tmp32;
+ else if (unformat (input, "low-watermark %d", &tmp32))
+ pm->low_watermark = (u8) tmp32;
else if (unformat (input, "rcv-buf-size %d", &pm->rcv_buffer_size))
;
else if (unformat (input, "prealloc-fifos %d", &pm->prealloc_fifos))
&pm->private_segment_count))
;
else if (unformat (input, "private-segment-size %U",
- unformat_memory_size, &tmp))
+ unformat_memory_size, &tmp64))
{
- if (tmp >= 0x100000000ULL)
+ if (tmp64 >= 0x100000000ULL)
return clib_error_return
- (0, "private segment size %lld (%llu) too large", tmp, tmp);
- pm->private_segment_size = tmp;
+ (0, "private segment size %lld (%llu) too large", tmp64, tmp64);
+ pm->private_segment_size = tmp64;
}
else if (unformat (input, "server-uri %s", &pm->server_uri))
vec_add1 (pm->server_uri, 0);
{
.path = "test proxy server",
.short_help = "test proxy server [server-uri <tcp://ip/port>]"
- "[client-uri <tcp://ip/port>][fifo-size <nn>][rcv-buf-size <nn>]"
- "[prealloc-fifos <nn>][private-segment-size <mem>]"
- "[private-segment-count <nn>]",
+ "[client-uri <tcp://ip/port>][fifo-size <nn>[k|m]]"
+ "[max-fifo-size <nn>[k|m]][high-watermark <nn>]"
+ "[low-watermark <nn>][rcv-buf-size <nn>][prealloc-fifos <nn>]"
+ "[private-segment-size <mem>][private-segment-count <nn>]",
.function = proxy_server_create_command_fn,
};
/* *INDENT-ON* */
Code Review / vpp.git / blobdiff