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authorFlorin Coras <fcoras@cisco.com>2020-12-02 21:14:56 -0800
committerDave Barach <openvpp@barachs.net>2021-02-26 21:58:12 +0000
commit30fdf39628c095ed4a5d607079c1b18294050c56 (patch)
tree36f2c9a87fe9565f974437339e6a85c18cefd598 /src/vnet
parent4f0ac7e833fffe8fec659037efe0928d1bba0677 (diff)
udp: avoid locking connected udp sessions on rx
Type: improvement Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: I52aa2322980b51cfc0b282fb37d7f63d30777dee
Diffstat (limited to 'src/vnet')
-rw-r--r--src/vnet/udp/udp.c2
-rw-r--r--src/vnet/udp/udp.h2
-rw-r--r--src/vnet/udp/udp_input.c6
3 files changed, 8 insertions, 2 deletions
diff --git a/src/vnet/udp/udp.c b/src/vnet/udp/udp.c
index 1d05e02b2ab..00d9ec104dd 100644
--- a/src/vnet/udp/udp.c
+++ b/src/vnet/udp/udp.c
@@ -124,6 +124,7 @@ void
udp_connection_free (udp_connection_t * uc)
{
u32 thread_index = uc->c_thread_index;
+ clib_spinlock_free (&uc->rx_lock);
if (CLIB_DEBUG)
clib_memset (uc, 0xFA, sizeof (*uc));
pool_put (udp_main.connections[thread_index], uc);
@@ -222,6 +223,7 @@ udp_session_unbind (u32 listener_index)
listener = udp_listener_get (listener_index);
udp_connection_unregister_port (clib_net_to_host_u16 (listener->c_lcl_port),
listener->c_is_ip4);
+ clib_spinlock_free (&listener->rx_lock);
pool_put (um->listener_pool, listener);
return 0;
}
diff --git a/src/vnet/udp/udp.h b/src/vnet/udp/udp.h
index 1494b33a8c3..d0e3bf3015d 100644
--- a/src/vnet/udp/udp.h
+++ b/src/vnet/udp/udp.h
@@ -218,6 +218,8 @@ udp_connection_clone_safe (u32 connection_index, u32 thread_index)
new_c->c_thread_index = current_thread_index;
new_c->c_c_index = udp_connection_index (new_c);
new_c->c_fib_index = old_c->c_fib_index;
+ /* Assume cloned sessions don't need lock */
+ new_c->rx_lock = 0;
return new_c;
}
diff --git a/src/vnet/udp/udp_input.c b/src/vnet/udp/udp_input.c
index 523ab029bd4..c76c1b796bd 100644
--- a/src/vnet/udp/udp_input.c
+++ b/src/vnet/udp/udp_input.c
@@ -134,7 +134,8 @@ udp_connection_enqueue (udp_connection_t * uc0, session_t * s0,
{
int wrote0;
- clib_spinlock_lock (&uc0->rx_lock);
+ if (!(uc0->flags & UDP_CONN_F_CONNECTED))
+ clib_spinlock_lock (&uc0->rx_lock);
if (svm_fifo_max_enqueue_prod (s0->rx_fifo)
< hdr0->data_length + sizeof (session_dgram_hdr_t))
@@ -163,7 +164,8 @@ udp_connection_enqueue (udp_connection_t * uc0, session_t * s0,
unlock_rx_lock:
- clib_spinlock_unlock (&uc0->rx_lock);
+ if (!(uc0->flags & UDP_CONN_F_CONNECTED))
+ clib_spinlock_unlock (&uc0->rx_lock);
}
always_inline session_t *