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authorDave Barach <dbarach@cisco.com>2017-06-26 11:35:07 -0400
committerFlorin Coras <florin.coras@gmail.com>2017-07-11 15:40:19 +0000
commit2c25a62cc1cc4937165de740a3b32d78429c72d6 (patch)
treeb860025298501460e21cf8e5722c6155f87495ec /src/vnet/session/session.h
parent8af1b2fdecc883eadfec6b91434adc6044e24cb2 (diff)
Horizontal (nSessions) scaling draft
- Data structure preallocation. - Input state machine fixes for mid-stream 3-way handshake retries. - Batch connections in the builtin_client - Multiple private fifo segment support - Fix elog simultaneous event type registration - Fix sacks when segment hole is added after highest sacked - Add "accepting" session state for sessions pending accept - Add ssvm non-recursive locking - Estimate RTT for syn-ack - Don't init fifo pointers. We're using relative offsets for ooo segments - CLI to dump individual session Change-Id: Ie0598563fd246537bafba4feed7985478ea1d415 Signed-off-by: Dave Barach <dbarach@cisco.com> Signed-off-by: Florin Coras <fcoras@cisco.com>
Diffstat (limited to 'src/vnet/session/session.h')
-rw-r--r--src/vnet/session/session.h30
1 files changed, 27 insertions, 3 deletions
diff --git a/src/vnet/session/session.h b/src/vnet/session/session.h
index 5fa4225c4ed..b4507d4eaed 100644
--- a/src/vnet/session/session.h
+++ b/src/vnet/session/session.h
@@ -80,6 +80,10 @@ typedef enum
SESSION_N_TYPES,
} session_type_t;
+
+session_type_t
+session_type_from_proto_and_ip (transport_proto_t proto, u8 is_ip4);
+
/*
* Application session state
*/
@@ -87,6 +91,7 @@ typedef enum
{
SESSION_STATE_LISTENING,
SESSION_STATE_CONNECTING,
+ SESSION_STATE_ACCEPTING,
SESSION_STATE_READY,
SESSION_STATE_CLOSED,
SESSION_STATE_N_STATES,
@@ -211,8 +216,12 @@ struct _session_manager_main
/** Per transport rx function that can either dequeue or peek */
session_fifo_rx_fn *session_tx_fns[SESSION_N_TYPES];
+ /** Session manager is enabled */
u8 is_enabled;
+ /** Preallocate session config parameter */
+ u32 preallocated_sessions;
+
/* Convenience */
vlib_main_t *vlib_main;
vnet_main_t *vnet_main;
@@ -247,13 +256,12 @@ stream_session_t *stream_session_lookup_listener4 (ip4_address_t * lcl,
u16 lcl_port, u8 proto);
stream_session_t *stream_session_lookup4 (ip4_address_t * lcl,
ip4_address_t * rmt, u16 lcl_port,
- u16 rmt_port, u8 proto,
- u32 thread_index);
+ u16 rmt_port, u8 proto);
stream_session_t *stream_session_lookup_listener6 (ip6_address_t * lcl,
u16 lcl_port, u8 proto);
stream_session_t *stream_session_lookup6 (ip6_address_t * lcl,
ip6_address_t * rmt, u16 lcl_port,
- u16 rmt_port, u8, u32 thread_index);
+ u16 rmt_port, u8 proto);
transport_connection_t
* stream_session_lookup_transport4 (ip4_address_t * lcl,
ip4_address_t * rmt, u16 lcl_port,
@@ -277,9 +285,24 @@ stream_session_get_tsi (u64 ti_and_si, u32 thread_index)
ti_and_si & 0xFFFFFFFFULL);
}
+always_inline u8
+stream_session_is_valid (u32 si, u8 thread_index)
+{
+ stream_session_t *s;
+ s = pool_elt_at_index (session_manager_main.sessions[thread_index], si);
+ if (s->thread_index != thread_index || s->session_index != si
+ || s->server_rx_fifo->master_session_index != si
+ || s->server_tx_fifo->master_session_index != si
+ || s->server_rx_fifo->master_thread_index != thread_index
+ || s->server_tx_fifo->master_thread_index != thread_index)
+ return 0;
+ return 1;
+}
+
always_inline stream_session_t *
stream_session_get (u32 si, u32 thread_index)
{
+ ASSERT (stream_session_is_valid (si, thread_index));
return pool_elt_at_index (session_manager_main.sessions[thread_index], si);
}
@@ -292,6 +315,7 @@ stream_session_get_if_valid (u64 si, u32 thread_index)
if (pool_is_free_index (session_manager_main.sessions[thread_index], si))
return 0;
+ ASSERT (stream_session_is_valid (si, thread_index));
return pool_elt_at_index (session_manager_main.sessions[thread_index], si);
}