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authorMohammed Hawari <mohammed@hawari.fr>2022-06-02 18:04:45 +0200
committerOle Tr�an <otroan@employees.org>2022-10-05 09:34:48 +0000
commit41404bf64c604565a42aa6d7e03fd7b952f1eee1 (patch)
treede41f8ac852f165c57a16ff2b03683223ce12edf /src/vnet
parent2805daa541c67ff84d39eeeb737c49fa6790504c (diff)
ip: reassembly - custom context instead of VRF
Change-Id: Id8d6ab96a710cdd207068cf19a6363bbcd584de4 Type: improvement Signed-off-by: Mohammed Hawari <mohammed@hawari.fr>
Diffstat (limited to 'src/vnet')
-rw-r--r--src/vnet/ip/reass/ip4_sv_reass.c176
-rw-r--r--src/vnet/ip/reass/ip4_sv_reass.h1
2 files changed, 137 insertions, 40 deletions
diff --git a/src/vnet/ip/reass/ip4_sv_reass.c b/src/vnet/ip/reass/ip4_sv_reass.c
index 4ef144e9bee..41077b746a3 100644
--- a/src/vnet/ip/reass/ip4_sv_reass.c
+++ b/src/vnet/ip/reass/ip4_sv_reass.c
@@ -150,6 +150,7 @@ typedef struct
/** Worker handoff */
u32 fq_index;
u32 fq_feature_index;
+ u32 fq_custom_context_index;
// reference count for enabling/disabling feature - per interface
u32 *feature_use_refcount_per_intf;
@@ -457,14 +458,19 @@ l4_layer_truncated (ip4_header_t *ip)
}
always_inline uword
-ip4_sv_reass_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
- vlib_frame_t * frame, bool is_feature,
- bool is_output_feature, bool is_custom)
+ip4_sv_reass_inline (vlib_main_t *vm, vlib_node_runtime_t *node,
+ vlib_frame_t *frame, bool is_feature,
+ bool is_output_feature, bool is_custom,
+ bool with_custom_context)
{
u32 *from = vlib_frame_vector_args (frame);
- u32 n_left_from, n_left_to_next, *to_next, next_index;
+ u32 n_left_from, n_left_to_next, *to_next, *to_next_aux, next_index;
ip4_sv_reass_main_t *rm = &ip4_sv_reass_main;
ip4_sv_reass_per_thread_t *rt = &rm->per_thread_data[vm->thread_index];
+ u32 *context;
+ if (with_custom_context)
+ context = vlib_frame_aux_args (frame);
+
clib_spinlock_lock (&rt->lock);
n_left_from = frame->n_vectors;
@@ -621,6 +627,8 @@ ip4_sv_reass_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
next[0] = next0;
next[1] = next1;
next += 2;
+ if (with_custom_context)
+ context += 2;
}
while (n_left_from > 0)
@@ -696,6 +704,8 @@ ip4_sv_reass_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
n_left_from -= 1;
next[0] = next0;
next += 1;
+ if (with_custom_context)
+ context += 1;
}
vlib_buffer_enqueue_to_next (vm, node, from, (u16 *) nexts,
@@ -709,7 +719,11 @@ slow_path:
while (n_left_from > 0)
{
- vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
+ if (with_custom_context)
+ vlib_get_next_frame_with_aux_safe (vm, node, next_index, to_next,
+ to_next_aux, n_left_to_next);
+ else
+ vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
while (n_left_from > 0 && n_left_to_next > 0)
{
@@ -717,6 +731,7 @@ slow_path:
vlib_buffer_t *b0;
u32 next0;
u32 error0 = IP4_ERROR_NONE;
+ u8 forward_context = 0;
bi0 = from[0];
b0 = vlib_get_buffer (vm, bi0);
@@ -792,13 +807,17 @@ slow_path:
ip4_sv_reass_kv_t kv;
u8 do_handoff = 0;
- kv.k.as_u64[0] =
- (u64) vec_elt (ip4_main.fib_index_by_sw_if_index,
- vnet_buffer (b0)->sw_if_index[VLIB_RX]) |
- (u64) ip0->src_address.as_u32 << 32;
- kv.k.as_u64[1] =
- (u64) ip0->dst_address.
- as_u32 | (u64) ip0->fragment_id << 32 | (u64) ip0->protocol << 48;
+ if (with_custom_context)
+ kv.k.as_u64[0] = (u64) *context | (u64) ip0->src_address.as_u32
+ << 32;
+ else
+ kv.k.as_u64[0] =
+ (u64) vec_elt (ip4_main.fib_index_by_sw_if_index,
+ vnet_buffer (b0)->sw_if_index[VLIB_RX]) |
+ (u64) ip0->src_address.as_u32 << 32;
+ kv.k.as_u64[1] = (u64) ip0->dst_address.as_u32 |
+ (u64) ip0->fragment_id << 32 |
+ (u64) ip0->protocol << 48;
ip4_sv_reass_t *reass =
ip4_sv_reass_find_or_create (vm, rm, rt, &kv, &do_handoff);
@@ -808,6 +827,8 @@ slow_path:
next0 = IP4_SV_REASSEMBLY_NEXT_HANDOFF;
vnet_buffer (b0)->ip.reass.owner_thread_index =
kv.v.thread_index;
+ if (with_custom_context)
+ forward_context = 1;
goto packet_enqueue;
}
@@ -938,13 +959,26 @@ slow_path:
b0 = vlib_get_buffer (vm, bi0);
vnet_feature_next (&next0, b0);
}
- vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
- to_next, n_left_to_next,
- bi0, next0);
+ if (with_custom_context && forward_context)
+ {
+ if (to_next_aux)
+ {
+ to_next_aux[0] = *context;
+ to_next_aux += 1;
+ }
+ vlib_validate_buffer_enqueue_with_aux_x1 (
+ vm, node, next_index, to_next, to_next_aux, n_left_to_next,
+ bi0, *context, next0);
+ }
+ else
+ vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next,
+ n_left_to_next, bi0, next0);
next_packet:
from += 1;
n_left_from -= 1;
+ if (with_custom_context)
+ context += 1;
}
vlib_put_next_frame (vm, node, next_index, n_left_to_next);
@@ -959,9 +993,9 @@ VLIB_NODE_FN (ip4_sv_reass_node) (vlib_main_t * vm,
vlib_node_runtime_t * node,
vlib_frame_t * frame)
{
- return ip4_sv_reass_inline (vm, node, frame, false /* is_feature */ ,
- false /* is_output_feature */ ,
- false /* is_custom */ );
+ return ip4_sv_reass_inline (
+ vm, node, frame, false /* is_feature */, false /* is_output_feature */,
+ false /* is_custom */, false /* with_custom_context */);
}
/* *INDENT-OFF* */
@@ -986,9 +1020,9 @@ VLIB_NODE_FN (ip4_sv_reass_node_feature) (vlib_main_t * vm,
vlib_node_runtime_t * node,
vlib_frame_t * frame)
{
- return ip4_sv_reass_inline (vm, node, frame, true /* is_feature */ ,
- false /* is_output_feature */ ,
- false /* is_custom */ );
+ return ip4_sv_reass_inline (
+ vm, node, frame, true /* is_feature */, false /* is_output_feature */,
+ false /* is_custom */, false /* with_custom_context */);
}
/* *INDENT-OFF* */
@@ -1021,9 +1055,9 @@ VLIB_NODE_FN (ip4_sv_reass_node_output_feature) (vlib_main_t * vm,
vlib_node_runtime_t * node,
vlib_frame_t * frame)
{
- return ip4_sv_reass_inline (vm, node, frame, true /* is_feature */ ,
- true /* is_output_feature */ ,
- false /* is_custom */ );
+ return ip4_sv_reass_inline (
+ vm, node, frame, true /* is_feature */, true /* is_output_feature */,
+ false /* is_custom */, false /* with_custom_context */);
}
@@ -1053,7 +1087,6 @@ VNET_FEATURE_INIT (ip4_sv_reass_output_feature) = {
};
/* *INDENT-ON* */
-/* *INDENT-OFF* */
VLIB_REGISTER_NODE (ip4_sv_reass_custom_node) = {
.name = "ip4-sv-reassembly-custom-next",
.vector_size = sizeof (u32),
@@ -1069,15 +1102,39 @@ VLIB_REGISTER_NODE (ip4_sv_reass_custom_node) = {
},
};
-/* *INDENT-ON* */
VLIB_NODE_FN (ip4_sv_reass_custom_node) (vlib_main_t * vm,
vlib_node_runtime_t * node,
vlib_frame_t * frame)
{
- return ip4_sv_reass_inline (vm, node, frame, false /* is_feature */ ,
- false /* is_output_feature */ ,
- true /* is_custom */ );
+ return ip4_sv_reass_inline (
+ vm, node, frame, false /* is_feature */, false /* is_output_feature */,
+ true /* is_custom */, false /* with_custom_context */);
+}
+
+VLIB_REGISTER_NODE (ip4_sv_reass_custom_context_node) = {
+ .name = "ip4-sv-reassembly-custom-context",
+ .vector_size = sizeof (u32),
+ .aux_size = sizeof(u32),
+ .format_trace = format_ip4_sv_reass_trace,
+ .n_errors = IP4_N_ERROR,
+ .error_counters = ip4_error_counters,
+ .n_next_nodes = IP4_SV_REASSEMBLY_N_NEXT,
+ .next_nodes =
+ {
+ [IP4_SV_REASSEMBLY_NEXT_INPUT] = "ip4-input",
+ [IP4_SV_REASSEMBLY_NEXT_DROP] = "ip4-drop",
+ [IP4_SV_REASSEMBLY_NEXT_HANDOFF] = "ip4-sv-reassembly-custom-context-handoff",
+
+ },
+};
+
+VLIB_NODE_FN (ip4_sv_reass_custom_context_node)
+(vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
+{
+ return ip4_sv_reass_inline (
+ vm, node, frame, false /* is_feature */, false /* is_output_feature */,
+ true /* is_custom */, true /* with_custom_context */);
}
#ifndef CLIB_MARCH_VARIANT
@@ -1222,6 +1279,8 @@ ip4_sv_reass_init_function (vlib_main_t * vm)
rm->fq_index = vlib_frame_queue_main_init (ip4_sv_reass_node.index, 0);
rm->fq_feature_index =
vlib_frame_queue_main_init (ip4_sv_reass_node_feature.index, 0);
+ rm->fq_custom_context_index =
+ vlib_frame_queue_main_init (ip4_sv_reass_custom_context_node.index, 0);
rm->feature_use_refcount_per_intf = NULL;
rm->output_feature_use_refcount_per_intf = NULL;
@@ -1466,25 +1525,30 @@ format_ip4_sv_reass_handoff_trace (u8 * s, va_list * args)
}
always_inline uword
-ip4_sv_reass_handoff_node_inline (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame, bool is_feature)
+ip4_sv_reass_handoff_node_inline (vlib_main_t *vm, vlib_node_runtime_t *node,
+ vlib_frame_t *frame, bool is_feature,
+ bool is_custom_context)
{
ip4_sv_reass_main_t *rm = &ip4_sv_reass_main;
vlib_buffer_t *bufs[VLIB_FRAME_SIZE], **b;
- u32 n_enq, n_left_from, *from;
+ u32 n_enq, n_left_from, *from, *context;
u16 thread_indices[VLIB_FRAME_SIZE], *ti;
u32 fq_index;
from = vlib_frame_vector_args (frame);
+ if (is_custom_context)
+ context = vlib_frame_aux_args (frame);
+
n_left_from = frame->n_vectors;
vlib_get_buffers (vm, from, bufs, n_left_from);
b = bufs;
ti = thread_indices;
- fq_index = (is_feature) ? rm->fq_feature_index : rm->fq_index;
+ fq_index = (is_feature) ? rm->fq_feature_index :
+ (is_custom_context ? rm->fq_custom_context_index :
+ rm->fq_index);
while (n_left_from > 0)
{
@@ -1503,8 +1567,12 @@ ip4_sv_reass_handoff_node_inline (vlib_main_t * vm,
ti += 1;
b += 1;
}
- n_enq = vlib_buffer_enqueue_to_thread (vm, node, fq_index, from,
- thread_indices, frame->n_vectors, 1);
+ if (is_custom_context)
+ n_enq = vlib_buffer_enqueue_to_thread_with_aux (
+ vm, node, fq_index, from, context, thread_indices, frame->n_vectors, 1);
+ else
+ n_enq = vlib_buffer_enqueue_to_thread (
+ vm, node, fq_index, from, thread_indices, frame->n_vectors, 1);
if (n_enq < frame->n_vectors)
vlib_node_increment_counter (vm, node->node_index,
@@ -1517,8 +1585,8 @@ VLIB_NODE_FN (ip4_sv_reass_handoff_node) (vlib_main_t * vm,
vlib_node_runtime_t * node,
vlib_frame_t * frame)
{
- return ip4_sv_reass_handoff_node_inline (vm, node, frame,
- false /* is_feature */ );
+ return ip4_sv_reass_handoff_node_inline (
+ vm, node, frame, false /* is_feature */, false /* is_custom_context */);
}
@@ -1538,6 +1606,27 @@ VLIB_REGISTER_NODE (ip4_sv_reass_handoff_node) = {
};
/* *INDENT-ON* */
+VLIB_NODE_FN (ip4_sv_reass_custom_context_handoff_node)
+(vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
+{
+ return ip4_sv_reass_handoff_node_inline (
+ vm, node, frame, false /* is_feature */, true /* is_custom_context */);
+}
+
+VLIB_REGISTER_NODE (ip4_sv_reass_custom_context_handoff_node) = {
+ .name = "ip4-sv-reassembly-custom-context-handoff",
+ .vector_size = sizeof (u32),
+ .aux_size = sizeof (u32),
+ .n_errors = ARRAY_LEN(ip4_sv_reass_handoff_error_strings),
+ .error_strings = ip4_sv_reass_handoff_error_strings,
+ .format_trace = format_ip4_sv_reass_handoff_trace,
+
+ .n_next_nodes = 1,
+
+ .next_nodes = {
+ [0] = "error-drop",
+ },
+};
/* *INDENT-OFF* */
VLIB_NODE_FN (ip4_sv_reass_feature_handoff_node) (vlib_main_t * vm,
@@ -1545,8 +1634,8 @@ VLIB_NODE_FN (ip4_sv_reass_feature_handoff_node) (vlib_main_t * vm,
node,
vlib_frame_t * frame)
{
- return ip4_sv_reass_handoff_node_inline (vm, node, frame,
- true /* is_feature */ );
+ return ip4_sv_reass_handoff_node_inline (
+ vm, node, frame, true /* is_feature */, false /* is_custom_context */);
}
/* *INDENT-ON* */
@@ -1603,6 +1692,13 @@ ip4_sv_reass_custom_register_next_node (uword node_index)
node_index);
}
+uword
+ip4_sv_reass_custom_context_register_next_node (uword node_index)
+{
+ return vlib_node_add_next (
+ vlib_get_main (), ip4_sv_reass_custom_context_node.index, node_index);
+}
+
int
ip4_sv_reass_output_enable_disable_with_refcnt (u32 sw_if_index,
int is_enable)
diff --git a/src/vnet/ip/reass/ip4_sv_reass.h b/src/vnet/ip/reass/ip4_sv_reass.h
index e926dbeebcc..3a684eb9809 100644
--- a/src/vnet/ip/reass/ip4_sv_reass.h
+++ b/src/vnet/ip/reass/ip4_sv_reass.h
@@ -49,6 +49,7 @@ int ip4_sv_reass_output_enable_disable_with_refcnt (u32 sw_if_index,
int is_enable);
uword ip4_sv_reass_custom_register_next_node (uword node_index);
+uword ip4_sv_reass_custom_context_register_next_node (uword node_index);
#endif /* __included_ip4_sv_reass_h__ */