*/
#include <vnet/tcp/tcp.h>
+#include <vnet/tcp/tcp_inlines.h>
#include <vnet/session/session.h>
#include <vnet/fib/fib.h>
#include <vnet/dpo/load_balance.h>
-#include <vnet/dpo/receive_dpo.h>
-#include <vnet/ip-neighbor/ip_neighbor.h>
#include <math.h>
tcp_main_t tcp_main;
*
*/
static void
-tcp_half_open_connection_del (tcp_connection_t * tc)
+tcp_half_open_connection_free (tcp_connection_t * tc)
{
tcp_main_t *tm = vnet_get_tcp_main ();
clib_spinlock_lock_if_init (&tm->half_open_lock);
int
tcp_half_open_connection_cleanup (tcp_connection_t * tc)
{
+ tcp_worker_ctx_t *wrk;
+
/* Make sure this is the owning thread */
if (tc->c_thread_index != vlib_get_thread_index ())
return 1;
- tcp_timer_reset (tc, TCP_TIMER_RETRANSMIT_SYN);
- tcp_half_open_connection_del (tc);
+
+ session_half_open_delete_notify (TRANSPORT_PROTO_TCP, tc->c_s_ho_handle);
+ wrk = tcp_get_worker (tc->c_thread_index);
+ tcp_timer_reset (&wrk->timer_wheel, tc, TCP_TIMER_RETRANSMIT_SYN);
+ tcp_half_open_connection_free (tc);
return 0;
}
pool_put (wrk->connections, tc);
}
+void
+tcp_program_cleanup (tcp_worker_ctx_t * wrk, tcp_connection_t * tc)
+{
+ tcp_cleanup_req_t *req;
+ clib_time_type_t now;
+
+ now = transport_time_now (tc->c_thread_index);
+ clib_fifo_add2 (wrk->pending_cleanups, req);
+ req->connection_index = tc->c_c_index;
+ req->free_time = now + tcp_cfg.cleanup_time;
+}
+
/**
* Begin connection closing procedure.
*
void
tcp_connection_close (tcp_connection_t * tc)
{
+ tcp_worker_ctx_t *wrk = tcp_get_worker (tc->c_thread_index);
+
TCP_EVT (TCP_EVT_CLOSE, tc);
/* Send/Program FIN if needed and switch state */
tcp_connection_timers_reset (tc);
tcp_send_fin (tc);
tcp_connection_set_state (tc, TCP_STATE_FIN_WAIT_1);
- tcp_timer_update (tc, TCP_TIMER_WAITCLOSE, tcp_cfg.finwait1_time);
+ tcp_timer_update (&wrk->timer_wheel, tc, TCP_TIMER_WAITCLOSE,
+ tcp_cfg.finwait1_time);
break;
case TCP_STATE_ESTABLISHED:
/* If closing with unread data, reset the connection */
tcp_send_reset (tc);
tcp_connection_timers_reset (tc);
tcp_connection_set_state (tc, TCP_STATE_CLOSED);
- tcp_timer_set (tc, TCP_TIMER_WAITCLOSE, tcp_cfg.closewait_time);
session_transport_closed_notify (&tc->connection);
- tcp_worker_stats_inc (tc->c_thread_index, rst_unread, 1);
+ tcp_program_cleanup (tcp_get_worker (tc->c_thread_index), tc);
+ tcp_worker_stats_inc (wrk, rst_unread, 1);
break;
}
if (!transport_max_tx_dequeue (&tc->connection))
/* Set a timer in case the peer stops responding. Otherwise the
* connection will be stuck here forever. */
ASSERT (tc->timers[TCP_TIMER_WAITCLOSE] == TCP_TIMER_HANDLE_INVALID);
- tcp_timer_set (tc, TCP_TIMER_WAITCLOSE, tcp_cfg.finwait1_time);
+ tcp_timer_set (&wrk->timer_wheel, tc, TCP_TIMER_WAITCLOSE,
+ tcp_cfg.finwait1_time);
break;
case TCP_STATE_CLOSE_WAIT:
if (!transport_max_tx_dequeue (&tc->connection))
tcp_send_fin (tc);
tcp_connection_timers_reset (tc);
tcp_connection_set_state (tc, TCP_STATE_LAST_ACK);
- tcp_timer_update (tc, TCP_TIMER_WAITCLOSE, tcp_cfg.lastack_time);
+ tcp_timer_update (&wrk->timer_wheel, tc, TCP_TIMER_WAITCLOSE,
+ tcp_cfg.lastack_time);
}
else
tc->flags |= TCP_CONN_FINPNDG;
break;
case TCP_STATE_FIN_WAIT_1:
- tcp_timer_update (tc, TCP_TIMER_WAITCLOSE, tcp_cfg.finwait1_time);
+ tcp_timer_update (&wrk->timer_wheel, tc, TCP_TIMER_WAITCLOSE,
+ tcp_cfg.finwait1_time);
break;
case TCP_STATE_CLOSED:
- tcp_connection_timers_reset (tc);
- /* Delete connection but instead of doing it now wait until next
- * dispatch cycle to give the session layer a chance to clear
- * unhandled events */
- tcp_timer_update (tc, TCP_TIMER_WAITCLOSE, tcp_cfg.cleanup_time);
+ /* Cleanup should've been programmed already */
break;
default:
TCP_DBG ("state: %u", tc->state);
tcp_connection_cleanup (tc);
}
+static void
+tcp_session_cleanup_ho (u32 conn_index)
+{
+ tcp_worker_ctx_t *wrk;
+ tcp_connection_t *tc;
+
+ tc = tcp_half_open_connection_get (conn_index);
+ wrk = tcp_get_worker (tc->c_thread_index);
+ tcp_timer_reset (&wrk->timer_wheel, tc, TCP_TIMER_RETRANSMIT_SYN);
+ tcp_half_open_connection_free (tc);
+}
+
static void
tcp_session_reset (u32 conn_index, u32 thread_index)
{
tcp_connection_t *tc;
tc = tcp_connection_get (conn_index, thread_index);
- session_transport_closed_notify (&tc->connection);
tcp_send_reset (tc);
tcp_connection_timers_reset (tc);
tcp_cong_recovery_off (tc);
tcp_connection_set_state (tc, TCP_STATE_CLOSED);
- tcp_timer_update (tc, TCP_TIMER_WAITCLOSE, tcp_cfg.cleanup_time);
+ session_transport_closed_notify (&tc->connection);
+ tcp_program_cleanup (tcp_get_worker (thread_index), tc);
}
/**
void
tcp_connection_timers_reset (tcp_connection_t * tc)
{
+ tcp_worker_ctx_t *wrk = tcp_get_worker (tc->c_thread_index);
int i;
+
for (i = 0; i < TCP_N_TIMERS; i++)
- {
- tcp_timer_reset (tc, i);
- }
+ tcp_timer_reset (&wrk->timer_wheel, tc, i);
}
#if 0
}
port = transport_alloc_local_port (TRANSPORT_PROTO_TCP, lcl_addr);
if (port < 1)
- {
- clib_warning ("Failed to allocate src port");
- return -1;
- }
+ return SESSION_E_NOPORT;
*lcl_port = port;
return 0;
}
rmt, &lcl_addr, &lcl_port);
if (rv)
- return -1;
+ {
+ if (rv != SESSION_E_PORTINUSE)
+ return rv;
+
+ if (session_lookup_connection (rmt->fib_index, &lcl_addr, &rmt->ip,
+ lcl_port, rmt->port, TRANSPORT_PROTO_UDP,
+ rmt->is_ip4))
+ return SESSION_E_PORTINUSE;
+
+ /* 5-tuple is available so increase lcl endpoint refcount and proceed
+ * with connection allocation */
+ transport_share_local_endpoint (TRANSPORT_PROTO_UDP, &lcl_addr,
+ lcl_port);
+ }
/*
* Create connection and send SYN
return tc->c_c_index;
}
-const char *tcp_fsm_states[] = {
-#define _(sym, str) str,
- foreach_tcp_fsm_state
-#undef _
-};
-
-u8 *
-format_tcp_state (u8 * s, va_list * args)
-{
- u32 state = va_arg (*args, u32);
-
- if (state < TCP_N_STATES)
- s = format (s, "%s", tcp_fsm_states[state]);
- else
- s = format (s, "UNKNOWN (%d (0x%x))", state, state);
- return s;
-}
-
-const char *tcp_cfg_flags_str[] = {
-#define _(sym, str) str,
- foreach_tcp_cfg_flag
-#undef _
-};
-
-static u8 *
-format_tcp_cfg_flags (u8 * s, va_list * args)
-{
- tcp_connection_t *tc = va_arg (*args, tcp_connection_t *);
- int i, last = -1;
-
- for (i = 0; i < TCP_CFG_N_FLAG_BITS; i++)
- if (tc->cfg_flags & (1 << i))
- last = i;
- for (i = 0; i < last; i++)
- {
- if (tc->cfg_flags & (1 << i))
- s = format (s, "%s, ", tcp_cfg_flags_str[i]);
- }
- if (last >= 0)
- s = format (s, "%s", tcp_cfg_flags_str[last]);
- return s;
-}
-
-const char *tcp_connection_flags_str[] = {
-#define _(sym, str) str,
- foreach_tcp_connection_flag
-#undef _
-};
-
-static u8 *
-format_tcp_connection_flags (u8 * s, va_list * args)
-{
- tcp_connection_t *tc = va_arg (*args, tcp_connection_t *);
- int i, last = -1;
-
- for (i = 0; i < TCP_CONN_N_FLAG_BITS; i++)
- if (tc->flags & (1 << i))
- last = i;
- for (i = 0; i < last; i++)
- {
- if (tc->flags & (1 << i))
- s = format (s, "%s, ", tcp_connection_flags_str[i]);
- }
- if (last >= 0)
- s = format (s, "%s", tcp_connection_flags_str[last]);
- return s;
-}
-
-const char *tcp_conn_timers[] = {
-#define _(sym, str) str,
- foreach_tcp_timer
-#undef _
-};
-
-static u8 *
-format_tcp_timers (u8 * s, va_list * args)
-{
- tcp_connection_t *tc = va_arg (*args, tcp_connection_t *);
- int i, last = -1;
-
- for (i = 0; i < TCP_N_TIMERS; i++)
- if (tc->timers[i] != TCP_TIMER_HANDLE_INVALID)
- last = i;
-
- for (i = 0; i < last; i++)
- {
- if (tc->timers[i] != TCP_TIMER_HANDLE_INVALID)
- s = format (s, "%s,", tcp_conn_timers[i]);
- }
-
- if (last >= 0)
- s = format (s, "%s", tcp_conn_timers[i]);
-
- return s;
-}
-
-static u8 *
-format_tcp_congestion_status (u8 * s, va_list * args)
-{
- tcp_connection_t *tc = va_arg (*args, tcp_connection_t *);
- if (tcp_in_recovery (tc))
- s = format (s, "recovery");
- else if (tcp_in_fastrecovery (tc))
- s = format (s, "fastrecovery");
- else
- s = format (s, "none");
- return s;
-}
-
-static i32
-tcp_rcv_wnd_available (tcp_connection_t * tc)
-{
- return (i32) tc->rcv_wnd - (tc->rcv_nxt - tc->rcv_las);
-}
-
-static u8 *
-format_tcp_congestion (u8 * s, va_list * args)
-{
- tcp_connection_t *tc = va_arg (*args, tcp_connection_t *);
- u32 indent = format_get_indent (s), prr_space = 0;
-
- s = format (s, "%U ", format_tcp_congestion_status, tc);
- s = format (s, "algo %s cwnd %u ssthresh %u bytes_acked %u\n",
- tc->cc_algo->name, tc->cwnd, tc->ssthresh, tc->bytes_acked);
- s = format (s, "%Ucc space %u prev_cwnd %u prev_ssthresh %u\n",
- format_white_space, indent, tcp_available_cc_snd_space (tc),
- tc->prev_cwnd, tc->prev_ssthresh);
- s = format (s, "%Usnd_cong %u dupack %u limited_tx %u\n",
- format_white_space, indent, tc->snd_congestion - tc->iss,
- tc->rcv_dupacks, tc->limited_transmit - tc->iss);
- s = format (s, "%Urxt_bytes %u rxt_delivered %u rxt_head %u rxt_ts %u\n",
- format_white_space, indent, tc->snd_rxt_bytes,
- tc->rxt_delivered, tc->rxt_head - tc->iss,
- tcp_time_now_w_thread (tc->c_thread_index) - tc->snd_rxt_ts);
- if (tcp_in_fastrecovery (tc))
- prr_space = tcp_fastrecovery_prr_snd_space (tc);
- s = format (s, "%Uprr_start %u prr_delivered %u prr space %u\n",
- format_white_space, indent, tc->prr_start - tc->iss,
- tc->prr_delivered, prr_space);
- return s;
-}
-
-static u8 *
-format_tcp_stats (u8 * s, va_list * args)
-{
- tcp_connection_t *tc = va_arg (*args, tcp_connection_t *);
- u32 indent = format_get_indent (s);
- s = format (s, "in segs %lu dsegs %lu bytes %lu dupacks %u\n",
- tc->segs_in, tc->data_segs_in, tc->bytes_in, tc->dupacks_in);
- s = format (s, "%Uout segs %lu dsegs %lu bytes %lu dupacks %u\n",
- format_white_space, indent, tc->segs_out,
- tc->data_segs_out, tc->bytes_out, tc->dupacks_out);
- s = format (s, "%Ufr %u tr %u rxt segs %lu bytes %lu duration %.3f\n",
- format_white_space, indent, tc->fr_occurences,
- tc->tr_occurences, tc->segs_retrans, tc->bytes_retrans,
- tcp_time_now_us (tc->c_thread_index) - tc->start_ts);
- s = format (s, "%Uerr wnd data below %u above %u ack below %u above %u",
- format_white_space, indent, tc->errors.below_data_wnd,
- tc->errors.above_data_wnd, tc->errors.below_ack_wnd,
- tc->errors.above_ack_wnd);
- return s;
-}
-
-static u8 *
-format_tcp_vars (u8 * s, va_list * args)
-{
- tcp_connection_t *tc = va_arg (*args, tcp_connection_t *);
- s = format (s, " index: %u cfg: %U flags: %U timers: %U\n", tc->c_c_index,
- format_tcp_cfg_flags, tc, format_tcp_connection_flags, tc,
- format_tcp_timers, tc);
- s = format (s, " snd_una %u snd_nxt %u snd_una_max %u",
- tc->snd_una - tc->iss, tc->snd_nxt - tc->iss,
- tc->snd_una_max - tc->iss);
- s = format (s, " rcv_nxt %u rcv_las %u\n",
- tc->rcv_nxt - tc->irs, tc->rcv_las - tc->irs);
- s = format (s, " snd_wnd %u rcv_wnd %u rcv_wscale %u ",
- tc->snd_wnd, tc->rcv_wnd, tc->rcv_wscale);
- s = format (s, "snd_wl1 %u snd_wl2 %u\n", tc->snd_wl1 - tc->irs,
- tc->snd_wl2 - tc->iss);
- s = format (s, " flight size %u out space %u rcv_wnd_av %u",
- tcp_flight_size (tc), tcp_available_output_snd_space (tc),
- tcp_rcv_wnd_available (tc));
- s = format (s, " tsval_recent %u\n", tc->tsval_recent);
- s = format (s, " tsecr %u tsecr_last_ack %u tsval_recent_age %u",
- tc->rcv_opts.tsecr, tc->tsecr_last_ack,
- tcp_time_now () - tc->tsval_recent_age);
- s = format (s, " snd_mss %u\n", tc->snd_mss);
- s = format (s, " rto %u rto_boff %u srtt %u us %.3f rttvar %u rtt_ts %.4f",
- tc->rto, tc->rto_boff, tc->srtt, tc->mrtt_us * 1000, tc->rttvar,
- tc->rtt_ts);
- s = format (s, " rtt_seq %u\n", tc->rtt_seq - tc->iss);
- s = format (s, " next_node %u opaque 0x%x\n", tc->next_node_index,
- tc->next_node_opaque);
- s = format (s, " cong: %U", format_tcp_congestion, tc);
-
- if (tc->state >= TCP_STATE_ESTABLISHED)
- {
- s = format (s, " sboard: %U\n", format_tcp_scoreboard, &tc->sack_sb,
- tc);
- s = format (s, " stats: %U\n", format_tcp_stats, tc);
- }
- if (vec_len (tc->snd_sacks))
- s = format (s, " sacks tx: %U\n", format_tcp_sacks, tc);
-
- return s;
-}
-
-u8 *
-format_tcp_connection_id (u8 * s, va_list * args)
-{
- tcp_connection_t *tc = va_arg (*args, tcp_connection_t *);
- if (!tc)
- return s;
- if (tc->c_is_ip4)
- {
- s = format (s, "[%d:%d][%s] %U:%d->%U:%d", tc->c_thread_index,
- tc->c_s_index, "T", format_ip4_address, &tc->c_lcl_ip4,
- clib_net_to_host_u16 (tc->c_lcl_port), format_ip4_address,
- &tc->c_rmt_ip4, clib_net_to_host_u16 (tc->c_rmt_port));
- }
- else
- {
- s = format (s, "[%d:%d][%s] %U:%d->%U:%d", tc->c_thread_index,
- tc->c_s_index, "T", format_ip6_address, &tc->c_lcl_ip6,
- clib_net_to_host_u16 (tc->c_lcl_port), format_ip6_address,
- &tc->c_rmt_ip6, clib_net_to_host_u16 (tc->c_rmt_port));
- }
-
- return s;
-}
-
-u8 *
-format_tcp_connection (u8 * s, va_list * args)
-{
- tcp_connection_t *tc = va_arg (*args, tcp_connection_t *);
- u32 verbose = va_arg (*args, u32);
-
- if (!tc)
- return s;
- s = format (s, "%-50U", format_tcp_connection_id, tc);
- if (verbose)
- {
- s = format (s, "%-15U", format_tcp_state, tc->state);
- if (verbose > 1)
- s = format (s, "\n%U", format_tcp_vars, tc);
- }
-
- return s;
-}
-
static u8 *
format_tcp_session (u8 * s, va_list * args)
{
return format (s, "%U", format_tcp_connection_id, tc);
}
-u8 *
-format_tcp_sacks (u8 * s, va_list * args)
-{
- tcp_connection_t *tc = va_arg (*args, tcp_connection_t *);
- sack_block_t *sacks = tc->snd_sacks;
- sack_block_t *block;
- int i, len = 0;
-
- len = vec_len (sacks);
- for (i = 0; i < len - 1; i++)
- {
- block = &sacks[i];
- s = format (s, " start %u end %u\n", block->start - tc->irs,
- block->end - tc->irs);
- }
- if (len)
- {
- block = &sacks[len - 1];
- s = format (s, " start %u end %u", block->start - tc->irs,
- block->end - tc->irs);
- }
- return s;
-}
-
-u8 *
-format_tcp_rcv_sacks (u8 * s, va_list * args)
-{
- tcp_connection_t *tc = va_arg (*args, tcp_connection_t *);
- sack_block_t *sacks = tc->rcv_opts.sacks;
- sack_block_t *block;
- int i, len = 0;
-
- len = vec_len (sacks);
- for (i = 0; i < len - 1; i++)
- {
- block = &sacks[i];
- s = format (s, " start %u end %u\n", block->start - tc->iss,
- block->end - tc->iss);
- }
- if (len)
- {
- block = &sacks[len - 1];
- s = format (s, " start %u end %u", block->start - tc->iss,
- block->end - tc->iss);
- }
- return s;
-}
-
-static u8 *
-format_tcp_sack_hole (u8 * s, va_list * args)
-{
- sack_scoreboard_hole_t *hole = va_arg (*args, sack_scoreboard_hole_t *);
- tcp_connection_t *tc = va_arg (*args, tcp_connection_t *);
- if (tc)
- s = format (s, " [%u, %u]", hole->start - tc->iss, hole->end - tc->iss);
- else
- s = format (s, " [%u, %u]", hole->start, hole->end);
- return s;
-}
-
-u8 *
-format_tcp_scoreboard (u8 * s, va_list * args)
-{
- sack_scoreboard_t *sb = va_arg (*args, sack_scoreboard_t *);
- tcp_connection_t *tc = va_arg (*args, tcp_connection_t *);
- sack_scoreboard_hole_t *hole;
- u32 indent = format_get_indent (s);
-
- s = format (s, "sacked %u last_sacked %u lost %u last_lost %u"
- " rxt_sacked %u\n",
- sb->sacked_bytes, sb->last_sacked_bytes, sb->lost_bytes,
- sb->last_lost_bytes, sb->rxt_sacked);
- s = format (s, "%Ulast_delivered %u high_sacked %u is_reneging %u\n",
- format_white_space, indent, sb->last_bytes_delivered,
- sb->high_sacked - tc->iss, sb->is_reneging);
- s = format (s, "%Ucur_rxt_hole %u high_rxt %u rescue_rxt %u",
- format_white_space, indent, sb->cur_rxt_hole,
- sb->high_rxt - tc->iss, sb->rescue_rxt - tc->iss);
-
- hole = scoreboard_first_hole (sb);
- if (hole)
- s = format (s, "\n%Uhead %u tail %u %u holes:\n%U", format_white_space,
- indent, sb->head, sb->tail, pool_elts (sb->holes),
- format_white_space, indent);
-
- while (hole)
- {
- s = format (s, "%U", format_tcp_sack_hole, hole, tc);
- hole = scoreboard_next_hole (sb, hole);
- }
-
- return s;
-}
-
static transport_connection_t *
tcp_session_get_transport (u32 conn_index, u32 thread_index)
{
return goal_size > tc->snd_mss ? goal_size : tc->snd_mss;
}
-/**
- * Compute maximum segment size for session layer.
- *
- * Since the result needs to be the actual data length, it first computes
- * the tcp options to be used in the next burst and subtracts their
- * length from the connection's snd_mss.
- */
-static u16
-tcp_session_send_mss (transport_connection_t * trans_conn)
-{
- tcp_connection_t *tc = (tcp_connection_t *) trans_conn;
-
- /* Ensure snd_mss does accurately reflect the amount of data we can push
- * in a segment. This also makes sure that options are updated according to
- * the current state of the connection. */
- tcp_update_burst_snd_vars (tc);
-
- if (PREDICT_FALSE (tc->cfg_flags & TCP_CFG_F_TSO))
- return tcp_session_cal_goal_size (tc);
-
- return tc->snd_mss;
-}
-
always_inline u32
tcp_round_snd_space (tcp_connection_t * tc, u32 snd_space)
{
return tcp_snd_space_inline (tc);
}
-static u32
-tcp_session_send_space (transport_connection_t * trans_conn)
+static int
+tcp_session_send_params (transport_connection_t * trans_conn,
+ transport_send_params_t * sp)
{
tcp_connection_t *tc = (tcp_connection_t *) trans_conn;
- return clib_min (tcp_snd_space_inline (tc),
- tc->snd_wnd - (tc->snd_nxt - tc->snd_una));
-}
-static u32
-tcp_session_tx_fifo_offset (transport_connection_t * trans_conn)
-{
- tcp_connection_t *tc = (tcp_connection_t *) trans_conn;
+ /* Ensure snd_mss does accurately reflect the amount of data we can push
+ * in a segment. This also makes sure that options are updated according to
+ * the current state of the connection. */
+ tcp_update_burst_snd_vars (tc);
- ASSERT (seq_geq (tc->snd_nxt, tc->snd_una));
+ if (PREDICT_FALSE (tc->cfg_flags & TCP_CFG_F_TSO))
+ sp->snd_mss = tcp_session_cal_goal_size (tc);
+ else
+ sp->snd_mss = tc->snd_mss;
+
+ sp->snd_space = clib_min (tcp_snd_space_inline (tc),
+ tc->snd_wnd - (tc->snd_nxt - tc->snd_una));
+ ASSERT (seq_geq (tc->snd_nxt, tc->snd_una));
/* This still works if fast retransmit is on */
- return (tc->snd_nxt - tc->snd_una);
+ sp->tx_offset = tc->snd_nxt - tc->snd_una;
+
+ sp->flags = sp->snd_space ? 0 : TRANSPORT_SND_F_DESCHED;
+
+ return 0;
}
static void
tcp_timer_waitclose_handler (tcp_connection_t * tc)
{
+ tcp_worker_ctx_t *wrk = tcp_get_worker (tc->c_thread_index);
+
switch (tc->state)
{
case TCP_STATE_CLOSE_WAIT:
tcp_connection_timers_reset (tc);
- session_transport_closed_notify (&tc->connection);
/* App never returned with a close */
if (!(tc->flags & TCP_CONN_FINPNDG))
{
tcp_connection_set_state (tc, TCP_STATE_CLOSED);
- tcp_timer_set (tc, TCP_TIMER_WAITCLOSE, tcp_cfg.cleanup_time);
- tcp_worker_stats_inc (tc->c_thread_index, to_closewait, 1);
+ session_transport_closed_notify (&tc->connection);
+ tcp_program_cleanup (wrk, tc);
+ tcp_worker_stats_inc (wrk, to_closewait, 1);
break;
}
tc->snd_nxt = tc->snd_una;
tcp_send_fin (tc);
tcp_connection_set_state (tc, TCP_STATE_LAST_ACK);
+ session_transport_closed_notify (&tc->connection);
/* Make sure we don't wait in LAST ACK forever */
- tcp_timer_set (tc, TCP_TIMER_WAITCLOSE, tcp_cfg.lastack_time);
- tcp_worker_stats_inc (tc->c_thread_index, to_closewait2, 1);
+ tcp_timer_set (&wrk->timer_wheel, tc, TCP_TIMER_WAITCLOSE,
+ tcp_cfg.lastack_time);
+ tcp_worker_stats_inc (wrk, to_closewait2, 1);
/* Don't delete the connection yet */
break;
case TCP_STATE_FIN_WAIT_1:
tcp_connection_timers_reset (tc);
- session_transport_closed_notify (&tc->connection);
if (tc->flags & TCP_CONN_FINPNDG)
{
/* If FIN pending, we haven't sent everything, but we did try.
* Notify session layer that transport is closed. */
tcp_connection_set_state (tc, TCP_STATE_CLOSED);
tcp_send_reset (tc);
- tcp_timer_set (tc, TCP_TIMER_WAITCLOSE, tcp_cfg.cleanup_time);
+ tcp_program_cleanup (wrk, tc);
}
else
{
/* We've sent the fin but no progress. Close the connection and
* to make sure everything is flushed, setup a cleanup timer */
tcp_connection_set_state (tc, TCP_STATE_CLOSED);
- tcp_timer_set (tc, TCP_TIMER_WAITCLOSE, tcp_cfg.cleanup_time);
+ tcp_program_cleanup (wrk, tc);
}
- tcp_worker_stats_inc (tc->c_thread_index, to_finwait1, 1);
+ session_transport_closed_notify (&tc->connection);
+ tcp_worker_stats_inc (wrk, to_finwait1, 1);
break;
case TCP_STATE_LAST_ACK:
tcp_connection_timers_reset (tc);
tcp_connection_set_state (tc, TCP_STATE_CLOSED);
- tcp_timer_set (tc, TCP_TIMER_WAITCLOSE, tcp_cfg.cleanup_time);
session_transport_closed_notify (&tc->connection);
- tcp_worker_stats_inc (tc->c_thread_index, to_lastack, 1);
+ tcp_program_cleanup (wrk, tc);
+ tcp_worker_stats_inc (wrk, to_lastack, 1);
break;
case TCP_STATE_CLOSING:
tcp_connection_timers_reset (tc);
tcp_connection_set_state (tc, TCP_STATE_CLOSED);
- tcp_timer_set (tc, TCP_TIMER_WAITCLOSE, tcp_cfg.cleanup_time);
session_transport_closed_notify (&tc->connection);
- tcp_worker_stats_inc (tc->c_thread_index, to_closing, 1);
+ tcp_program_cleanup (wrk, tc);
+ tcp_worker_stats_inc (wrk, to_closing, 1);
break;
case TCP_STATE_FIN_WAIT_2:
tcp_send_reset (tc);
tcp_connection_timers_reset (tc);
tcp_connection_set_state (tc, TCP_STATE_CLOSED);
session_transport_closed_notify (&tc->connection);
- tcp_timer_set (tc, TCP_TIMER_WAITCLOSE, tcp_cfg.cleanup_time);
- tcp_worker_stats_inc (tc->c_thread_index, to_finwait2, 1);
+ tcp_program_cleanup (wrk, tc);
+ tcp_worker_stats_inc (wrk, to_finwait2, 1);
+ break;
+ case TCP_STATE_TIME_WAIT:
+ tcp_connection_set_state (tc, TCP_STATE_CLOSED);
+ tcp_program_cleanup (wrk, tc);
break;
default:
- tcp_connection_del (tc);
+ clib_warning ("waitclose in state: %U", format_tcp_state, tc->state);
break;
}
}
return;
thread_index = wrk->vm->thread_index;
- for (i = 0; i < clib_min (n_timers, 32); i++)
+ for (i = 0; i < clib_min (n_timers, wrk->max_timers_per_loop); i++)
{
clib_fifo_sub1 (wrk->pending_timers, timer_handle);
connection_index = timer_handle & 0x0FFFFFFF;
(*timer_expiration_handlers[timer_id]) (tc);
}
+
+ if (thread_index == 0 && clib_fifo_elts (wrk->pending_timers))
+ session_queue_run_on_main_thread (wrk->vm);
}
-/**
- * Flush ip lookup tx frames populated by timer pops
- */
static void
-tcp_flush_frames_to_output (tcp_worker_ctx_t * wrk)
+tcp_handle_cleanups (tcp_worker_ctx_t * wrk, clib_time_type_t now)
{
- if (wrk->ip_lookup_tx_frames[0])
- {
- vlib_put_frame_to_node (wrk->vm, ip4_lookup_node.index,
- wrk->ip_lookup_tx_frames[0]);
- wrk->ip_lookup_tx_frames[0] = 0;
- }
- if (wrk->ip_lookup_tx_frames[1])
+ u32 thread_index = wrk->vm->thread_index;
+ tcp_cleanup_req_t *req;
+ tcp_connection_t *tc;
+
+ while (clib_fifo_elts (wrk->pending_cleanups))
{
- vlib_put_frame_to_node (wrk->vm, ip6_lookup_node.index,
- wrk->ip_lookup_tx_frames[1]);
- wrk->ip_lookup_tx_frames[1] = 0;
+ req = clib_fifo_head (wrk->pending_cleanups);
+ if (req->free_time > now)
+ break;
+ clib_fifo_sub2 (wrk->pending_cleanups, req);
+ tc = tcp_connection_get (req->connection_index, thread_index);
+ if (PREDICT_FALSE (!tc))
+ continue;
+ session_transport_delete_notify (&tc->connection);
+ tcp_connection_cleanup (tc);
}
}
tcp_worker_ctx_t *wrk = tcp_get_worker (thread_index);
tcp_set_time_now (wrk);
+ tcp_handle_cleanups (wrk, now);
tw_timer_expire_timers_16t_2w_512sl (&wrk->timer_wheel, now);
tcp_dispatch_pending_timers (wrk);
- tcp_flush_frames_to_output (wrk);
}
static void
.connect = tcp_session_open,
.close = tcp_session_close,
.cleanup = tcp_session_cleanup,
+ .cleanup_ho = tcp_session_cleanup_ho,
.reset = tcp_session_reset,
- .send_mss = tcp_session_send_mss,
- .send_space = tcp_session_send_space,
+ .send_params = tcp_session_send_params,
.update_time = tcp_update_time,
- .tx_fifo_offset = tcp_session_tx_fifo_offset,
.flush_data = tcp_session_flush_data,
.custom_tx = tcp_session_custom_tx,
.format_connection = format_tcp_session,
.format_listener = format_tcp_listener_session,
.format_half_open = format_tcp_half_open_session,
.transport_options = {
+ .name = "tcp",
+ .short_name = "T",
.tx_type = TRANSPORT_TX_PEEK,
.service_type = TRANSPORT_SERVICE_VC,
},
srtt * CLIB_US_TIME_FREQ);
}
+void
+tcp_reschedule (tcp_connection_t * tc)
+{
+ if (tcp_in_cong_recovery (tc) || tcp_snd_space_inline (tc))
+ transport_connection_reschedule (&tc->connection);
+}
+
static void
tcp_expired_timers_dispatch (u32 * expired_timers)
{
- u32 thread_index = vlib_get_thread_index ();
- u32 connection_index, timer_id, n_expired;
+ u32 thread_index = vlib_get_thread_index (), n_left, max_per_loop;
+ u32 connection_index, timer_id, n_expired, max_loops;
tcp_worker_ctx_t *wrk;
tcp_connection_t *tc;
int i;
wrk = tcp_get_worker (thread_index);
n_expired = vec_len (expired_timers);
- tcp_workerp_stats_inc (wrk, timer_expirations, n_expired);
+ tcp_worker_stats_inc (wrk, timer_expirations, n_expired);
+ n_left = clib_fifo_elts (wrk->pending_timers);
/*
* Invalidate all timer handles before dispatching. This avoids dangling
}
clib_fifo_add (wrk->pending_timers, expired_timers, n_expired);
+
+ max_loops = clib_max (1, 0.5 * TCP_TIMER_TICK * wrk->vm->loops_per_second);
+ max_per_loop = clib_max ((n_left + n_expired) / max_loops, 10);
+ max_per_loop = clib_min (max_per_loop, VLIB_FRAME_SIZE);
+ wrk->max_timers_per_loop = clib_max (n_left ? wrk->max_timers_per_loop : 0,
+ max_per_loop);
+
+ if (thread_index == 0)
+ session_queue_run_on_main_thread (wrk->vm);
}
static void
n_workers = num_threads == 1 ? 1 : vtm->n_threads;
prealloc_conn_per_wrk = tcp_cfg.preallocated_connections / n_workers;
+ wrk = &tm->wrk_ctx[0];
+ wrk->tco_next_node[0] = vlib_node_get_next (vm, session_queue_node.index,
+ tcp4_output_node.index);
+ wrk->tco_next_node[1] = vlib_node_get_next (vm, session_queue_node.index,
+ tcp6_output_node.index);
+
for (thread = 0; thread < num_threads; thread++)
{
wrk = &tm->wrk_ctx[thread];
vec_reset_length (wrk->pending_disconnects);
vec_reset_length (wrk->pending_resets);
wrk->vm = vlib_mains[thread];
+ wrk->max_timers_per_loop = 10;
+
+ if (thread > 0)
+ {
+ wrk->tco_next_node[0] = tm->wrk_ctx[0].tco_next_node[0];
+ wrk->tco_next_node[1] = tm->wrk_ctx[0].tco_next_node[1];
+ }
/*
* Preallocate connections. Assume that thread 0 won't
tm->bytes_per_buffer = vlib_buffer_get_default_data_size (vm);
tm->cc_last_type = TCP_CC_LAST;
+
+ tm->ipl_next_node[0] = vlib_node_get_next (vm, session_queue_node.index,
+ ip4_lookup_node.index);
+ tm->ipl_next_node[1] = vlib_node_get_next (vm, session_queue_node.index,
+ ip6_lookup_node.index);
return error;
}
tcp_cfg.lastack_time = 300; /* 30s */
tcp_cfg.finwait2_time = 300; /* 30s */
tcp_cfg.closing_time = 300; /* 30s */
- tcp_cfg.cleanup_time = 1; /* 0.1s */
+ tcp_cfg.cleanup_time = 0.1; /* 100ms */
}
static clib_error_t *
transport_register_protocol (TRANSPORT_PROTO_TCP, &tcp_proto,
FIB_PROTOCOL_IP6, tcp6_output_node.index);
- tcp_api_reference ();
tcp_configuration_init ();
tm->cc_algo_by_name = hash_create_string (0, sizeof (uword));
VLIB_INIT_FUNCTION (tcp_init);
-uword
-unformat_tcp_cc_algo (unformat_input_t * input, va_list * va)
-{
- tcp_cc_algorithm_type_e *result = va_arg (*va, tcp_cc_algorithm_type_e *);
- tcp_main_t *tm = &tcp_main;
- char *cc_algo_name;
- u8 found = 0;
- uword *p;
-
- if (unformat (input, "%s", &cc_algo_name)
- && ((p = hash_get_mem (tm->cc_algo_by_name, cc_algo_name))))
- {
- *result = *p;
- found = 1;
- }
-
- vec_free (cc_algo_name);
- return found;
-}
-
-uword
-unformat_tcp_cc_algo_cfg (unformat_input_t * input, va_list * va)
-{
- tcp_main_t *tm = vnet_get_tcp_main ();
- tcp_cc_algorithm_t *cc_alg;
- unformat_input_t sub_input;
- int found = 0;
-
- vec_foreach (cc_alg, tm->cc_algos)
- {
- if (!unformat (input, cc_alg->name))
- continue;
-
- if (cc_alg->unformat_cfg
- && unformat (input, "%U", unformat_vlib_cli_sub_input, &sub_input))
- {
- if (cc_alg->unformat_cfg (&sub_input))
- found = 1;
- }
- }
- return found;
-}
-
-static clib_error_t *
-tcp_config_fn (vlib_main_t * vm, unformat_input_t * input)
-{
- u32 cwnd_multiplier, tmp_time;
- uword memory_size;
-
- while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
- {
- if (unformat (input, "preallocated-connections %d",
- &tcp_cfg.preallocated_connections))
- ;
- else if (unformat (input, "preallocated-half-open-connections %d",
- &tcp_cfg.preallocated_half_open_connections))
- ;
- else if (unformat (input, "buffer-fail-fraction %f",
- &tcp_cfg.buffer_fail_fraction))
- ;
- else if (unformat (input, "max-rx-fifo %U", unformat_memory_size,
- &memory_size))
- {
- if (memory_size >= 0x100000000)
- {
- return clib_error_return
- (0, "max-rx-fifo %llu (0x%llx) too large", memory_size,
- memory_size);
- }
- tcp_cfg.max_rx_fifo = memory_size;
- }
- else if (unformat (input, "min-rx-fifo %U", unformat_memory_size,
- &memory_size))
- {
- if (memory_size >= 0x100000000)
- {
- return clib_error_return
- (0, "min-rx-fifo %llu (0x%llx) too large", memory_size,
- memory_size);
- }
- tcp_cfg.min_rx_fifo = memory_size;
- }
- else if (unformat (input, "mtu %u", &tcp_cfg.default_mtu))
- ;
- else if (unformat (input, "rwnd-min-update-ack %d",
- &tcp_cfg.rwnd_min_update_ack))
- ;
- else if (unformat (input, "initial-cwnd-multiplier %u",
- &cwnd_multiplier))
- tcp_cfg.initial_cwnd_multiplier = cwnd_multiplier;
- else if (unformat (input, "no-tx-pacing"))
- tcp_cfg.enable_tx_pacing = 0;
- else if (unformat (input, "tso"))
- tcp_cfg.allow_tso = 1;
- else if (unformat (input, "no-csum-offload"))
- tcp_cfg.csum_offload = 0;
- else if (unformat (input, "cc-algo %U", unformat_tcp_cc_algo,
- &tcp_cfg.cc_algo))
- ;
- else if (unformat (input, "%U", unformat_tcp_cc_algo_cfg))
- ;
- else if (unformat (input, "closewait-time %u", &tmp_time))
- tcp_cfg.closewait_time = tmp_time / TCP_TIMER_TICK;
- else if (unformat (input, "timewait-time %u", &tmp_time))
- tcp_cfg.timewait_time = tmp_time / TCP_TIMER_TICK;
- else if (unformat (input, "finwait1-time %u", &tmp_time))
- tcp_cfg.finwait1_time = tmp_time / TCP_TIMER_TICK;
- else if (unformat (input, "finwait2-time %u", &tmp_time))
- tcp_cfg.finwait2_time = tmp_time / TCP_TIMER_TICK;
- else if (unformat (input, "lastack-time %u", &tmp_time))
- tcp_cfg.lastack_time = tmp_time / TCP_TIMER_TICK;
- else if (unformat (input, "closing-time %u", &tmp_time))
- tcp_cfg.closing_time = tmp_time / TCP_TIMER_TICK;
- else if (unformat (input, "cleanup-time %u", &tmp_time))
- tcp_cfg.cleanup_time = tmp_time / TCP_TIMER_TICK;
- else
- return clib_error_return (0, "unknown input `%U'",
- format_unformat_error, input);
- }
- return 0;
-}
-
-VLIB_CONFIG_FUNCTION (tcp_config_fn, "tcp");
-
-
-/**
- * \brief Configure an ipv4 source address range
- * @param vm vlib_main_t pointer
- * @param start first ipv4 address in the source address range
- * @param end last ipv4 address in the source address range
- * @param table_id VRF / table ID, 0 for the default FIB
- * @return 0 if all OK, else an error indication from api_errno.h
- */
-
-int
-tcp_configure_v4_source_address_range (vlib_main_t * vm,
- ip4_address_t * start,
- ip4_address_t * end, u32 table_id)
-{
- u32 start_host_byte_order, end_host_byte_order;
- fib_prefix_t prefix;
- fib_node_index_t fei;
- u32 fib_index = 0;
- u32 sw_if_index;
- int rv;
-
- clib_memset (&prefix, 0, sizeof (prefix));
-
- fib_index = fib_table_find (FIB_PROTOCOL_IP4, table_id);
-
- if (fib_index == ~0)
- return VNET_API_ERROR_NO_SUCH_FIB;
-
- start_host_byte_order = clib_net_to_host_u32 (start->as_u32);
- end_host_byte_order = clib_net_to_host_u32 (end->as_u32);
-
- /* sanity check for reversed args or some such */
- if ((end_host_byte_order - start_host_byte_order) > (10 << 10))
- return VNET_API_ERROR_INVALID_ARGUMENT;
-
- /* Lookup the last address, to identify the interface involved */
- prefix.fp_len = 32;
- prefix.fp_proto = FIB_PROTOCOL_IP4;
- memcpy (&prefix.fp_addr.ip4, end, sizeof (ip4_address_t));
-
- fei = fib_table_lookup (fib_index, &prefix);
-
- /* Couldn't find route to destination. Bail out. */
- if (fei == FIB_NODE_INDEX_INVALID)
- return VNET_API_ERROR_NEXT_HOP_NOT_IN_FIB;
-
- sw_if_index = fib_entry_get_resolving_interface (fei);
-
- /* Configure proxy arp across the range */
- rv = ip4_neighbor_proxy_add (fib_index, start, end);
-
- if (rv)
- return rv;
-
- rv = ip4_neighbor_proxy_enable (sw_if_index);
-
- if (rv)
- return rv;
-
- do
- {
- dpo_id_t dpo = DPO_INVALID;
-
- vec_add1 (tcp_cfg.ip4_src_addrs, start[0]);
-
- /* Add local adjacencies for the range */
-
- receive_dpo_add_or_lock (DPO_PROTO_IP4, ~0 /* sw_if_index */ ,
- NULL, &dpo);
- prefix.fp_len = 32;
- prefix.fp_proto = FIB_PROTOCOL_IP4;
- prefix.fp_addr.ip4.as_u32 = start->as_u32;
-
- fib_table_entry_special_dpo_update (fib_index,
- &prefix,
- FIB_SOURCE_API,
- FIB_ENTRY_FLAG_EXCLUSIVE, &dpo);
- dpo_reset (&dpo);
-
- start_host_byte_order++;
- start->as_u32 = clib_host_to_net_u32 (start_host_byte_order);
- }
- while (start_host_byte_order <= end_host_byte_order);
-
- return 0;
-}
-
-/**
- * \brief Configure an ipv6 source address range
- * @param vm vlib_main_t pointer
- * @param start first ipv6 address in the source address range
- * @param end last ipv6 address in the source address range
- * @param table_id VRF / table ID, 0 for the default FIB
- * @return 0 if all OK, else an error indication from api_errno.h
- */
-
-int
-tcp_configure_v6_source_address_range (vlib_main_t * vm,
- ip6_address_t * start,
- ip6_address_t * end, u32 table_id)
-{
- fib_prefix_t prefix;
- u32 fib_index = 0;
- fib_node_index_t fei;
- u32 sw_if_index;
-
- clib_memset (&prefix, 0, sizeof (prefix));
-
- fib_index = fib_table_find (FIB_PROTOCOL_IP6, table_id);
-
- if (fib_index == ~0)
- return VNET_API_ERROR_NO_SUCH_FIB;
-
- while (1)
- {
- int i;
- ip6_address_t tmp;
- dpo_id_t dpo = DPO_INVALID;
-
- /* Remember this address */
- vec_add1 (tcp_cfg.ip6_src_addrs, start[0]);
-
- /* Lookup the prefix, to identify the interface involved */
- prefix.fp_len = 128;
- prefix.fp_proto = FIB_PROTOCOL_IP6;
- memcpy (&prefix.fp_addr.ip6, start, sizeof (ip6_address_t));
-
- fei = fib_table_lookup (fib_index, &prefix);
-
- /* Couldn't find route to destination. Bail out. */
- if (fei == FIB_NODE_INDEX_INVALID)
- return VNET_API_ERROR_NEXT_HOP_NOT_IN_FIB;
-
- sw_if_index = fib_entry_get_resolving_interface (fei);
-
- if (sw_if_index == (u32) ~ 0)
- return VNET_API_ERROR_NO_MATCHING_INTERFACE;
-
- /* Add a proxy neighbor discovery entry for this address */
- ip6_neighbor_proxy_add (sw_if_index, start);
-
- /* Add a receive adjacency for this address */
- receive_dpo_add_or_lock (DPO_PROTO_IP6, ~0 /* sw_if_index */ ,
- NULL, &dpo);
-
- fib_table_entry_special_dpo_update (fib_index,
- &prefix,
- FIB_SOURCE_API,
- FIB_ENTRY_FLAG_EXCLUSIVE, &dpo);
- dpo_reset (&dpo);
-
- /* Done with the entire range? */
- if (!memcmp (start, end, sizeof (start[0])))
- break;
-
- /* Increment the address. DGMS. */
- tmp = start[0];
- for (i = 15; i >= 0; i--)
- {
- tmp.as_u8[i] += 1;
- if (tmp.as_u8[i] != 0)
- break;
- }
- start[0] = tmp;
- }
- return 0;
-}
-
-static clib_error_t *
-tcp_src_address_fn (vlib_main_t * vm,
- unformat_input_t * input, vlib_cli_command_t * cmd_arg)
-{
- ip4_address_t v4start, v4end;
- ip6_address_t v6start, v6end;
- u32 table_id = 0;
- int v4set = 0;
- int v6set = 0;
- int rv;
-
- while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
- {
- if (unformat (input, "%U - %U", unformat_ip4_address, &v4start,
- unformat_ip4_address, &v4end))
- v4set = 1;
- else if (unformat (input, "%U", unformat_ip4_address, &v4start))
- {
- memcpy (&v4end, &v4start, sizeof (v4start));
- v4set = 1;
- }
- else if (unformat (input, "%U - %U", unformat_ip6_address, &v6start,
- unformat_ip6_address, &v6end))
- v6set = 1;
- else if (unformat (input, "%U", unformat_ip6_address, &v6start))
- {
- memcpy (&v6end, &v6start, sizeof (v6start));
- v6set = 1;
- }
- else if (unformat (input, "fib-table %d", &table_id))
- ;
- else
- break;
- }
-
- if (!v4set && !v6set)
- return clib_error_return (0, "at least one v4 or v6 address required");
-
- if (v4set)
- {
- rv = tcp_configure_v4_source_address_range (vm, &v4start, &v4end,
- table_id);
- switch (rv)
- {
- case 0:
- break;
-
- case VNET_API_ERROR_NO_SUCH_FIB:
- return clib_error_return (0, "Invalid table-id %d", table_id);
-
- case VNET_API_ERROR_INVALID_ARGUMENT:
- return clib_error_return (0, "Invalid address range %U - %U",
- format_ip4_address, &v4start,
- format_ip4_address, &v4end);
- default:
- return clib_error_return (0, "error %d", rv);
- break;
- }
- }
- if (v6set)
- {
- rv = tcp_configure_v6_source_address_range (vm, &v6start, &v6end,
- table_id);
- switch (rv)
- {
- case 0:
- break;
-
- case VNET_API_ERROR_NO_SUCH_FIB:
- return clib_error_return (0, "Invalid table-id %d", table_id);
-
- default:
- return clib_error_return (0, "error %d", rv);
- break;
- }
- }
- return 0;
-}
-
-/* *INDENT-OFF* */
-VLIB_CLI_COMMAND (tcp_src_address_command, static) =
-{
- .path = "tcp src-address",
- .short_help = "tcp src-address <ip-addr> [- <ip-addr>] add src address range",
- .function = tcp_src_address_fn,
-};
-/* *INDENT-ON* */
-
-static u8 *
-tcp_scoreboard_dump_trace (u8 * s, sack_scoreboard_t * sb)
-{
-#if TCP_SCOREBOARD_TRACE
-
- scoreboard_trace_elt_t *block;
- int i = 0;
-
- if (!sb->trace)
- return s;
-
- s = format (s, "scoreboard trace:");
- vec_foreach (block, sb->trace)
- {
- s = format (s, "{%u, %u, %u, %u, %u}, ", block->start, block->end,
- block->ack, block->snd_una_max, block->group);
- if ((++i % 3) == 0)
- s = format (s, "\n");
- }
- return s;
-#else
- return 0;
-#endif
-}
-
-static clib_error_t *
-tcp_show_scoreboard_trace_fn (vlib_main_t * vm, unformat_input_t * input,
- vlib_cli_command_t * cmd_arg)
-{
- transport_connection_t *tconn = 0;
- tcp_connection_t *tc;
- u8 *s = 0;
- while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
- {
- if (unformat (input, "%U", unformat_transport_connection, &tconn,
- TRANSPORT_PROTO_TCP))
- ;
- else
- return clib_error_return (0, "unknown input `%U'",
- format_unformat_error, input);
- }
-
- if (!TCP_SCOREBOARD_TRACE)
- {
- vlib_cli_output (vm, "scoreboard tracing not enabled");
- return 0;
- }
-
- tc = tcp_get_connection_from_transport (tconn);
- s = tcp_scoreboard_dump_trace (s, &tc->sack_sb);
- vlib_cli_output (vm, "%v", s);
- return 0;
-}
-
-/* *INDENT-OFF* */
-VLIB_CLI_COMMAND (tcp_show_scoreboard_trace_command, static) =
-{
- .path = "show tcp scoreboard trace",
- .short_help = "show tcp scoreboard trace <connection>",
- .function = tcp_show_scoreboard_trace_fn,
-};
-/* *INDENT-ON* */
-
-u8 *
-tcp_scoreboard_replay (u8 * s, tcp_connection_t * tc, u8 verbose)
-{
- int i, trace_len;
- scoreboard_trace_elt_t *trace;
- u32 next_ack, left, group, has_new_ack = 0;
- tcp_connection_t _dummy_tc, *dummy_tc = &_dummy_tc;
- sack_block_t *block;
-
- if (!TCP_SCOREBOARD_TRACE)
- {
- s = format (s, "scoreboard tracing not enabled");
- return s;
- }
-
- if (!tc)
- return s;
-
- clib_memset (dummy_tc, 0, sizeof (*dummy_tc));
- tcp_connection_timers_init (dummy_tc);
- scoreboard_init (&dummy_tc->sack_sb);
- dummy_tc->rcv_opts.flags |= TCP_OPTS_FLAG_SACK;
-
-#if TCP_SCOREBOARD_TRACE
- trace = tc->sack_sb.trace;
- trace_len = vec_len (tc->sack_sb.trace);
-#endif
-
- for (i = 0; i < trace_len; i++)
- {
- if (trace[i].ack != 0)
- {
- dummy_tc->snd_una = trace[i].ack - 1448;
- dummy_tc->snd_una_max = trace[i].ack;
- }
- }
-
- left = 0;
- while (left < trace_len)
- {
- group = trace[left].group;
- vec_reset_length (dummy_tc->rcv_opts.sacks);
- has_new_ack = 0;
- while (trace[left].group == group)
- {
- if (trace[left].ack != 0)
- {
- if (verbose)
- s = format (s, "Adding ack %u, snd_una_max %u, segs: ",
- trace[left].ack, trace[left].snd_una_max);
- dummy_tc->snd_una_max = trace[left].snd_una_max;
- next_ack = trace[left].ack;
- has_new_ack = 1;
- }
- else
- {
- if (verbose)
- s = format (s, "[%u, %u], ", trace[left].start,
- trace[left].end);
- vec_add2 (dummy_tc->rcv_opts.sacks, block, 1);
- block->start = trace[left].start;
- block->end = trace[left].end;
- }
- left++;
- }
-
- /* Push segments */
- tcp_rcv_sacks (dummy_tc, next_ack);
- if (has_new_ack)
- dummy_tc->snd_una = next_ack;
-
- if (verbose)
- s = format (s, "result: %U", format_tcp_scoreboard,
- &dummy_tc->sack_sb);
-
- }
- s = format (s, "result: %U", format_tcp_scoreboard, &dummy_tc->sack_sb);
-
- return s;
-}
-
-static clib_error_t *
-tcp_scoreboard_trace_fn (vlib_main_t * vm, unformat_input_t * input,
- vlib_cli_command_t * cmd_arg)
-{
- transport_connection_t *tconn = 0;
- tcp_connection_t *tc = 0;
- u8 *str = 0;
- while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
- {
- if (unformat (input, "%U", unformat_transport_connection, &tconn,
- TRANSPORT_PROTO_TCP))
- ;
- else
- return clib_error_return (0, "unknown input `%U'",
- format_unformat_error, input);
- }
-
- if (!TCP_SCOREBOARD_TRACE)
- {
- vlib_cli_output (vm, "scoreboard tracing not enabled");
- return 0;
- }
-
- tc = tcp_get_connection_from_transport (tconn);
- if (!tc)
- {
- vlib_cli_output (vm, "connection not found");
- return 0;
- }
- str = tcp_scoreboard_replay (str, tc, 1);
- vlib_cli_output (vm, "%v", str);
- return 0;
-}
-
-/* *INDENT-OFF* */
-VLIB_CLI_COMMAND (tcp_replay_scoreboard_command, static) =
-{
- .path = "tcp replay scoreboard",
- .short_help = "tcp replay scoreboard <connection>",
- .function = tcp_scoreboard_trace_fn,
-};
-/* *INDENT-ON* */
-
-static clib_error_t *
-show_tcp_punt_fn (vlib_main_t * vm, unformat_input_t * input,
- vlib_cli_command_t * cmd_arg)
-{
- tcp_main_t *tm = vnet_get_tcp_main ();
- if (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
- return clib_error_return (0, "unknown input `%U'", format_unformat_error,
- input);
- vlib_cli_output (vm, "IPv4 TCP punt: %s",
- tm->punt_unknown4 ? "enabled" : "disabled");
- vlib_cli_output (vm, "IPv6 TCP punt: %s",
- tm->punt_unknown6 ? "enabled" : "disabled");
- return 0;
-}
-/* *INDENT-OFF* */
-VLIB_CLI_COMMAND (show_tcp_punt_command, static) =
-{
- .path = "show tcp punt",
- .short_help = "show tcp punt",
- .function = show_tcp_punt_fn,
-};
-/* *INDENT-ON* */
-
-static clib_error_t *
-show_tcp_stats_fn (vlib_main_t * vm, unformat_input_t * input,
- vlib_cli_command_t * cmd)
-{
- tcp_main_t *tm = vnet_get_tcp_main ();
- tcp_worker_ctx_t *wrk;
- u32 thread;
-
- if (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
- return clib_error_return (0, "unknown input `%U'", format_unformat_error,
- input);
- for (thread = 0; thread < vec_len (tm->wrk_ctx); thread++)
- {
- wrk = tcp_get_worker (thread);
- vlib_cli_output (vm, "Thread %u:\n", thread);
-
- if (clib_fifo_elts (wrk->pending_timers))
- vlib_cli_output (vm, " %lu pending timers",
- clib_fifo_elts (wrk->pending_timers));
-
-#define _(name,type,str) \
- if (wrk->stats.name) \
- vlib_cli_output (vm, " %lu %s", wrk->stats.name, str);
- foreach_tcp_wrk_stat
-#undef _
- }
-
- return 0;
-}
-
-/* *INDENT-OFF* */
-VLIB_CLI_COMMAND (show_tcp_stats_command, static) =
-{
- .path = "show tcp stats",
- .short_help = "show tcp stats",
- .function = show_tcp_stats_fn,
-};
-/* *INDENT-ON* */
-
-static clib_error_t *
-clear_tcp_stats_fn (vlib_main_t * vm, unformat_input_t * input,
- vlib_cli_command_t * cmd)
-{
- tcp_main_t *tm = vnet_get_tcp_main ();
- tcp_worker_ctx_t *wrk;
- u32 thread;
-
- if (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
- return clib_error_return (0, "unknown input `%U'", format_unformat_error,
- input);
-
- for (thread = 0; thread < vec_len (tm->wrk_ctx); thread++)
- {
- wrk = tcp_get_worker (thread);
- clib_memset (&wrk->stats, 0, sizeof (wrk->stats));
- }
-
- return 0;
-}
-
-/* *INDENT-OFF* */
-VLIB_CLI_COMMAND (clear_tcp_stats_command, static) =
-{
- .path = "clear tcp stats",
- .short_help = "clear tcp stats",
- .function = clear_tcp_stats_fn,
-};
-/* *INDENT-ON* */
-
/*
* fd.io coding-style-patch-verification: ON
*
Code Review / vpp.git / blobdiff