#include <vnet/session/session.h>
#include <vnet/fib/fib.h>
+typedef struct local_endpoint_
+{
+ transport_endpoint_t ep;
+ int refcnt;
+} local_endpoint_t;
+
/**
* Per-type vector of transport protocol virtual function tables
*/
/*
* Pool of local endpoints
*/
-static transport_endpoint_t *local_endpoints;
+static local_endpoint_t *local_endpoints;
/*
* Local endpoints pool lock
s = format (s, "%U", tp_vft->format_connection, conn_index, thread_index,
verbose);
tc = tp_vft->get_connection (conn_index, thread_index);
- if (tc && transport_connection_is_tx_paced (tc) && verbose > 1)
+ if (tc && verbose > 1)
{
indent = format_get_indent (s) + 1;
- s = format (s, "%Upacer: %U\n", format_white_space, indent,
- format_transport_pacer, &tc->pacer, tc->thread_index);
+ if (transport_connection_is_tx_paced (tc))
+ s = format (s, "%Upacer: %U\n", format_white_space, indent,
+ format_transport_pacer, &tc->pacer, tc->thread_index);
s = format (s, "%Utransport: flags 0x%x\n", format_white_space, indent,
tc->flags);
}
format_transport_half_open_connection (u8 * s, va_list * args)
{
u32 transport_proto = va_arg (*args, u32);
- u32 listen_index = va_arg (*args, u32);
+ u32 ho_index = va_arg (*args, u32);
transport_proto_vft_t *tp_vft;
tp_vft = transport_protocol_get_vft (transport_proto);
if (!tp_vft)
return s;
- s = format (s, "%U", tp_vft->format_half_open, listen_index);
+ s = format (s, "%U", tp_vft->format_half_open, ho_index);
return s;
}
}
if (longest_match)
{
- unformat (input, str_match);
+ (void) unformat (input, str_match);
return 1;
}
return &tp_vfts[transport_proto];
}
-u8
-transport_half_open_has_fifos (transport_proto_t tp)
-{
- return tp_vfts[tp].transport_options.half_open_has_fifos;
-}
-
transport_service_type_t
transport_protocol_service_type (transport_proto_t tp)
{
tp_vfts[tp].cleanup (conn_index, thread_index);
}
+void
+transport_cleanup_half_open (transport_proto_t tp, u32 conn_index)
+{
+ if (tp_vfts[tp].cleanup)
+ tp_vfts[tp].cleanup_ho (conn_index);
+}
+
int
transport_connect (transport_proto_t tp, transport_endpoint_cfg_t * tep)
{
return tp_vfts[tp].connect (tep);
}
+void
+transport_half_close (transport_proto_t tp, u32 conn_index, u8 thread_index)
+{
+ if (tp_vfts[tp].half_close)
+ tp_vfts[tp].half_close (conn_index, thread_index);
+}
+
void
transport_close (transport_proto_t tp, u32 conn_index, u8 thread_index)
{
}
}
+int
+transport_connection_attribute (transport_proto_t tp, u32 conn_index,
+ u8 thread_index, u8 is_get,
+ transport_endpt_attr_t *attr)
+{
+ if (!tp_vfts[tp].attribute)
+ return -1;
+
+ return tp_vfts[tp].attribute (conn_index, thread_index, is_get, attr);
+}
+
#define PORT_MASK ((1 << 16)- 1)
void
clib_spinlock_unlock_if_init (&local_endpoints_lock);
}
-always_inline transport_endpoint_t *
+always_inline local_endpoint_t *
transport_endpoint_new (void)
{
- transport_endpoint_t *tep;
- pool_get_zero (local_endpoints, tep);
- return tep;
+ local_endpoint_t *lep;
+ pool_get_zero (local_endpoints, lep);
+ return lep;
}
void
transport_endpoint_cleanup (u8 proto, ip46_address_t * lcl_ip, u16 port)
{
- u32 tepi;
- transport_endpoint_t *tep;
+ local_endpoint_t *lep;
+ u32 lepi;
/* Cleanup local endpoint if this was an active connect */
- tepi = transport_endpoint_lookup (&local_endpoints_table, proto, lcl_ip,
+ lepi = transport_endpoint_lookup (&local_endpoints_table, proto, lcl_ip,
clib_net_to_host_u16 (port));
- if (tepi != ENDPOINT_INVALID_INDEX)
+ if (lepi != ENDPOINT_INVALID_INDEX)
{
- tep = pool_elt_at_index (local_endpoints, tepi);
- transport_endpoint_table_del (&local_endpoints_table, proto, tep);
- transport_endpoint_del (tepi);
+ lep = pool_elt_at_index (local_endpoints, lepi);
+ if (!clib_atomic_sub_fetch (&lep->refcnt, 1))
+ {
+ transport_endpoint_table_del (&local_endpoints_table, proto,
+ &lep->ep);
+ transport_endpoint_del (lepi);
+ }
}
}
static void
transport_endpoint_mark_used (u8 proto, ip46_address_t * ip, u16 port)
{
- transport_endpoint_t *tep;
+ local_endpoint_t *lep;
clib_spinlock_lock_if_init (&local_endpoints_lock);
- tep = transport_endpoint_new ();
- clib_memcpy_fast (&tep->ip, ip, sizeof (*ip));
- tep->port = port;
- transport_endpoint_table_add (&local_endpoints_table, proto, tep,
- tep - local_endpoints);
+ lep = transport_endpoint_new ();
+ clib_memcpy_fast (&lep->ep.ip, ip, sizeof (*ip));
+ lep->ep.port = port;
+ lep->refcnt = 1;
+ transport_endpoint_table_add (&local_endpoints_table, proto, &lep->ep,
+ lep - local_endpoints);
clib_spinlock_unlock_if_init (&local_endpoints_lock);
}
+void
+transport_share_local_endpoint (u8 proto, ip46_address_t * lcl_ip, u16 port)
+{
+ local_endpoint_t *lep;
+ u32 lepi;
+
+ lepi = transport_endpoint_lookup (&local_endpoints_table, proto, lcl_ip,
+ clib_net_to_host_u16 (port));
+ if (lepi != ENDPOINT_INVALID_INDEX)
+ {
+ lep = pool_elt_at_index (local_endpoints, lepi);
+ clib_atomic_add_fetch (&lep->refcnt, 1);
+ }
+}
+
/**
* Allocate local port and add if successful add entry to local endpoint
* table to mark the pair as used.
return -1;
}
-static clib_error_t *
+static session_error_t
transport_get_interface_ip (u32 sw_if_index, u8 is_ip4, ip46_address_t * addr)
{
if (is_ip4)
ip4_address_t *ip4;
ip4 = ip_interface_get_first_ip (sw_if_index, 1);
if (!ip4)
- return clib_error_return (0, "no routable ip4 address on %U",
- format_vnet_sw_if_index_name,
- vnet_get_main (), sw_if_index);
+ return SESSION_E_NOIP;
addr->ip4.as_u32 = ip4->as_u32;
}
else
ip6_address_t *ip6;
ip6 = ip_interface_get_first_ip (sw_if_index, 0);
if (ip6 == 0)
- return clib_error_return (0, "no routable ip6 addresses on %U",
- format_vnet_sw_if_index_name,
- vnet_get_main (), sw_if_index);
+ return SESSION_E_NOIP;
clib_memcpy_fast (&addr->ip6, ip6, sizeof (*ip6));
}
return 0;
}
-static clib_error_t *
+static session_error_t
transport_find_local_ip_for_remote (u32 sw_if_index,
transport_endpoint_t * rmt,
ip46_address_t * lcl_addr)
/* Couldn't find route to destination. Bail out. */
if (fei == FIB_NODE_INDEX_INVALID)
- return clib_error_return (0, "no route to %U", format_ip46_address,
- &rmt->ip, (rmt->is_ip4 == 0) + 1);
+ return SESSION_E_NOROUTE;
sw_if_index = fib_entry_get_resolving_interface (fei);
if (sw_if_index == ENDPOINT_INVALID_INDEX)
- return clib_error_return (0, "no resolving interface for %U",
- format_ip46_address, &rmt->ip,
- (rmt->is_ip4 == 0) + 1);
+ return SESSION_E_NOINTF;
}
clib_memset (lcl_addr, 0, sizeof (*lcl_addr));
ip46_address_t * lcl_addr, u16 * lcl_port)
{
transport_endpoint_t *rmt = (transport_endpoint_t *) rmt_cfg;
- clib_error_t *error;
+ session_error_t error;
int port;
u32 tei;
error = transport_find_local_ip_for_remote (rmt_cfg->peer.sw_if_index,
rmt, lcl_addr);
if (error)
- {
- clib_error_report (error);
- return -1;
- }
+ return error;
}
else
{
{
port = transport_alloc_local_port (proto, lcl_addr);
if (port < 1)
- {
- clib_warning ("Failed to allocate src port");
- return -1;
- }
+ return SESSION_E_NOPORT;
*lcl_port = port;
}
else
{
port = clib_net_to_host_u16 (rmt_cfg->peer.port);
+ *lcl_port = port;
tei = transport_endpoint_lookup (&local_endpoints_table, proto,
lcl_addr, port);
if (tei != ENDPOINT_INVALID_INDEX)
- return -1;
+ return SESSION_E_PORTINUSE;
transport_endpoint_mark_used (proto, lcl_addr, port);
- *lcl_port = port;
}
return 0;
now = transport_us_time_now (thread_index);
diff = now - pacer->last_update;
- s = format (s, "rate %lu bucket %lu t/p %.3f last_update %U idle %u",
+ s = format (s, "rate %lu bucket %ld t/p %.3f last_update %U burst %u",
pacer->bytes_per_sec, pacer->bucket, pacer->tokens_per_period,
- format_clib_us_time, diff, pacer->idle_timeout_us);
+ format_clib_us_time, diff, pacer->max_burst);
return s;
}
u64 n_periods = (time_now - pacer->last_update);
u64 inc;
- if (PREDICT_FALSE (n_periods > pacer->idle_timeout_us))
- {
- pacer->last_update = time_now;
- pacer->bucket = TRANSPORT_PACER_MIN_BURST;
- return TRANSPORT_PACER_MIN_BURST;
- }
-
if ((inc = (f32) n_periods * pacer->tokens_per_period) > 10)
{
pacer->last_update = time_now;
- pacer->bucket = clib_min (pacer->bucket + inc, pacer->bytes_per_sec);
+ pacer->bucket = clib_min (pacer->bucket + inc, pacer->max_burst);
}
- return clib_min (pacer->bucket, TRANSPORT_PACER_MAX_BURST);
+ return pacer->bucket > 0 ? pacer->max_burst : 0;
}
static inline void
spacer_update_bucket (spacer_t * pacer, u32 bytes)
{
- ASSERT (pacer->bucket >= bytes);
pacer->bucket -= bytes;
}
static inline void
spacer_set_pace_rate (spacer_t * pacer, u64 rate_bytes_per_sec,
- clib_us_time_t rtt)
+ clib_us_time_t rtt, clib_time_type_t sec_per_loop)
{
+ clib_us_time_t max_time;
+
ASSERT (rate_bytes_per_sec != 0);
pacer->bytes_per_sec = rate_bytes_per_sec;
pacer->tokens_per_period = rate_bytes_per_sec * CLIB_US_TIME_PERIOD;
- pacer->idle_timeout_us = clib_max (rtt * TRANSPORT_PACER_IDLE_FACTOR,
- TRANSPORT_PACER_MIN_IDLE);
+
+ /* Allow a min number of bursts per rtt, if their size is acceptable. Goal
+ * is to spread the sending of data over the rtt but to also allow for some
+ * coalescing that can potentially
+ * 1) reduce load on session layer by reducing scheduling frequency for a
+ * session and
+ * 2) optimize sending when tso if available
+ *
+ * Max "time-length" of a burst cannot be less than 1us or more than 1ms.
+ */
+ max_time = clib_max (rtt / TRANSPORT_PACER_BURSTS_PER_RTT,
+ (clib_us_time_t) (sec_per_loop * CLIB_US_TIME_FREQ));
+ max_time = clib_clamp (max_time, 1 /* 1us */ , 1000 /* 1ms */ );
+ pacer->max_burst = (rate_bytes_per_sec * max_time) * CLIB_US_TIME_PERIOD;
+ pacer->max_burst = clib_clamp (pacer->max_burst, TRANSPORT_PACER_MIN_BURST,
+ TRANSPORT_PACER_MAX_BURST);
}
static inline u64
u64 rate_bytes_per_sec, u32 start_bucket,
clib_us_time_t rtt)
{
- spacer_set_pace_rate (&tc->pacer, rate_bytes_per_sec, rtt);
+ spacer_set_pace_rate (&tc->pacer, rate_bytes_per_sec, rtt,
+ transport_seconds_per_loop (tc->thread_index));
spacer_reset (&tc->pacer, transport_us_time_now (tc->thread_index),
start_bucket);
}
transport_connection_tx_pacer_update (transport_connection_t * tc,
u64 bytes_per_sec, clib_us_time_t rtt)
{
- spacer_set_pace_rate (&tc->pacer, bytes_per_sec, rtt);
+ spacer_set_pace_rate (&tc->pacer, bytes_per_sec, rtt,
+ transport_seconds_per_loop (tc->thread_index));
}
u32
spacer_update_bucket (&tc->pacer, bytes);
}
+void
+transport_update_pacer_time (u32 thread_index, clib_time_type_t now)
+{
+ session_wrk_update_time (session_main_get_worker (thread_index), now);
+}
+
void
transport_connection_reschedule (transport_connection_t * tc)
{
}
}
+void
+transport_fifos_init_ooo (transport_connection_t * tc)
+{
+ session_t *s = session_get (tc->s_index, tc->thread_index);
+ svm_fifo_init_ooo_lookup (s->rx_fifo, 0 /* ooo enq */ );
+ svm_fifo_init_ooo_lookup (s->tx_fifo, 1 /* ooo deq */ );
+}
+
void
transport_update_time (clib_time_type_t time_now, u8 thread_index)
{
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