/** Worker handoff */
u32 fq_index;
u32 fq_feature_index;
+ u32 fq_custom_index;
+ // reference count for enabling/disabling feature - per interface
+ u32 *feature_use_refcount_per_intf;
} ip4_full_reass_main_t;
extern ip4_full_reass_main_t ip4_full_reass_main;
IP4_FULL_REASS_N_NEXT,
} ip4_full_reass_next_t;
+typedef enum
+{
+ NORMAL,
+ FEATURE,
+ CUSTOM
+} ip4_full_reass_node_type_t;
+
typedef enum
{
RANGE_NEW,
u32 fragment_first;
u32 fragment_last;
u32 total_data_len;
+ bool is_after_handoff;
+ ip4_header_t ip4_header;
} ip4_full_reass_trace_t;
extern vlib_node_registration_t ip4_full_reass_node;
extern vlib_node_registration_t ip4_full_reass_node_feature;
+extern vlib_node_registration_t ip4_full_reass_node_custom;
static void
ip4_full_reass_trace_details (vlib_main_t * vm, u32 bi,
u32 indent = 0;
if (~0 != t->reass_id)
{
- s = format (s, "reass id: %u, op id: %u, ", t->reass_id, t->op_id);
+ if (t->is_after_handoff)
+ {
+ s =
+ format (s, "%U\n", format_ip4_header, &t->ip4_header,
+ sizeof (t->ip4_header));
+ indent = 2;
+ }
+ s =
+ format (s, "%Ureass id: %u, op id: %u, ", format_white_space, indent,
+ t->reass_id, t->op_id);
indent = format_get_indent (s);
s =
format (s,
{
vlib_buffer_t *b = vlib_get_buffer (vm, bi);
vnet_buffer_opaque_t *vnb = vnet_buffer (b);
+ bool is_after_handoff = false;
+ if (vlib_buffer_get_trace_thread (b) != vm->thread_index)
+ {
+ is_after_handoff = true;
+ }
ip4_full_reass_trace_t *t = vlib_add_trace (vm, node, b, sizeof (t[0]));
+ t->is_after_handoff = is_after_handoff;
+ if (t->is_after_handoff)
+ {
+ clib_memcpy (&t->ip4_header, vlib_buffer_get_current (b),
+ clib_min (sizeof (t->ip4_header), b->current_length));
+ }
if (reass)
{
t->reass_id = reass->id;
{
vlib_buffer_free (vm, to_free, vec_len (to_free));
}
+ vec_free (to_free);
}
always_inline void
reass = NULL;
now = vlib_time_now (vm);
- if (!clib_bihash_search_16_8
- (&rm->hash, (clib_bihash_kv_16_8_t *) kv, (clib_bihash_kv_16_8_t *) kv))
+ if (!clib_bihash_search_16_8 (&rm->hash, &kv->kv, &kv->kv))
{
+ if (vm->thread_index != kv->v.memory_owner_thread_index)
+ {
+ *do_handoff = 1;
+ return NULL;
+ }
reass =
pool_elt_at_index (rm->per_thread_data
[kv->v.memory_owner_thread_index].pool,
kv->v.reass_index);
- if (vm->thread_index != reass->memory_owner_thread_index)
- {
- *do_handoff = 1;
- return reass;
- }
if (now > reass->last_heard + rm->timeout)
{
++rt->reass_n;
}
- reass->key.as_u64[0] = ((clib_bihash_kv_16_8_t *) kv)->key[0];
- reass->key.as_u64[1] = ((clib_bihash_kv_16_8_t *) kv)->key[1];
+ reass->key.as_u64[0] = kv->kv.key[0];
+ reass->key.as_u64[1] = kv->kv.key[1];
kv->v.reass_index = (reass - rt->pool);
kv->v.memory_owner_thread_index = vm->thread_index;
reass->last_heard = now;
- int rv =
- clib_bihash_add_del_16_8 (&rm->hash, (clib_bihash_kv_16_8_t *) kv, 2);
+ int rv = clib_bihash_add_del_16_8 (&rm->hash, &kv->kv, 2);
if (rv)
{
ip4_full_reass_free_ctx (rt, reass);
ip4_full_reass_main_t * rm,
ip4_full_reass_per_thread_t * rt,
ip4_full_reass_t * reass, u32 * bi0,
- u32 * next0, u32 * error0, bool is_custom_app)
+ u32 * next0, u32 * error0, bool is_custom)
{
vlib_buffer_t *first_b = vlib_get_buffer (vm, reass->first_bi);
vlib_buffer_t *last_b = NULL;
#endif
}
*bi0 = reass->first_bi;
- if (!is_custom_app)
+ if (!is_custom)
{
*next0 = IP4_FULL_REASS_NEXT_INPUT;
}
ip4_full_reass_main_t * rm,
ip4_full_reass_per_thread_t * rt,
ip4_full_reass_t * reass, u32 * bi0, u32 * next0,
- u32 * error0, bool is_custom_app,
- u32 * handoff_thread_idx)
+ u32 * error0, bool is_custom, u32 * handoff_thread_idx)
{
vlib_buffer_t *fb = vlib_get_buffer (vm, *bi0);
vnet_buffer_opaque_t *fvnb = vnet_buffer (fb);
- if (is_custom_app)
+ if (is_custom)
{
// store (error_)next_index before it's overwritten
reass->next_index = fvnb->ip.reass.next_index;
reass->memory_owner_thread_index != reass->sendout_thread_index;
rc =
ip4_full_reass_finalize (vm, node, rm, rt, reass, bi0, next0, error0,
- is_custom_app);
+ is_custom);
if (IP4_REASS_RC_OK == rc && handoff)
{
rc = IP4_REASS_RC_HANDOFF;
always_inline uword
ip4_full_reass_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
- vlib_frame_t * frame, bool is_feature,
- bool is_custom_app)
+ vlib_frame_t * frame, ip4_full_reass_node_type_t type)
{
u32 *from = vlib_frame_vector_args (frame);
u32 n_left_from, n_left_to_next, *to_next, next_index;
if (!ip4_get_fragment_more (ip0) && !ip4_get_fragment_offset (ip0))
{
// this is a whole packet - no fragmentation
- if (!is_custom_app)
+ if (CUSTOM != type)
{
next0 = IP4_FULL_REASS_NEXT_INPUT;
}
u32 handoff_thread_idx;
switch (ip4_full_reass_update
(vm, node, rm, rt, reass, &bi0, &next0,
- &error0, is_custom_app, &handoff_thread_idx))
+ &error0, CUSTOM == type, &handoff_thread_idx))
{
case IP4_REASS_RC_OK:
/* nothing to do here */
packet_enqueue:
- b0->error = node->errors[error0];
if (bi0 != ~0)
{
to_next[0] = bi0;
to_next += 1;
n_left_to_next -= 1;
+
+ /* bi0 might have been updated by reass_finalize, reload */
+ b0 = vlib_get_buffer (vm, bi0);
+ if (IP4_ERROR_NONE != error0)
+ {
+ b0->error = node->errors[error0];
+ }
+
if (next0 == IP4_FULL_REASS_NEXT_HANDOFF)
{
if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
reass.owner_thread_index);
}
}
- else if (is_feature && IP4_ERROR_NONE == error0)
+ else if (FEATURE == type && IP4_ERROR_NONE == error0)
{
- b0 = vlib_get_buffer (vm, bi0);
vnet_feature_next (&next0, b0);
}
vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
vlib_node_runtime_t * node,
vlib_frame_t * frame)
{
- return ip4_full_reass_inline (vm, node, frame, false /* is_feature */ ,
- false /* is_custom_app */ );
+ return ip4_full_reass_inline (vm, node, frame, NORMAL);
}
/* *INDENT-OFF* */
vlib_node_runtime_t * node,
vlib_frame_t * frame)
{
- return ip4_full_reass_inline (vm, node, frame, true /* is_feature */ ,
- false /* is_custom_app */ );
+ return ip4_full_reass_inline (vm, node, frame, FEATURE);
}
/* *INDENT-OFF* */
};
/* *INDENT-ON* */
+VLIB_NODE_FN (ip4_full_reass_node_custom) (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
+{
+ return ip4_full_reass_inline (vm, node, frame, CUSTOM);
+}
+
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (ip4_full_reass_node_custom) = {
+ .name = "ip4-full-reassembly-custom",
+ .vector_size = sizeof (u32),
+ .format_trace = format_ip4_full_reass_trace,
+ .n_errors = ARRAY_LEN (ip4_full_reass_error_strings),
+ .error_strings = ip4_full_reass_error_strings,
+ .n_next_nodes = IP4_FULL_REASS_N_NEXT,
+ .next_nodes =
+ {
+ [IP4_FULL_REASS_NEXT_INPUT] = "ip4-input",
+ [IP4_FULL_REASS_NEXT_DROP] = "ip4-drop",
+ [IP4_FULL_REASS_NEXT_HANDOFF] = "ip4-full-reass-custom-hoff",
+ },
+};
+/* *INDENT-ON* */
+
+/* *INDENT-OFF* */
+VNET_FEATURE_INIT (ip4_full_reass_custom, static) = {
+ .arc_name = "ip4-unicast",
+ .node_name = "ip4-full-reassembly-feature",
+ .runs_before = VNET_FEATURES ("ip4-lookup",
+ "ipsec4-input-feature"),
+ .runs_after = 0,
+};
+
+/* *INDENT-ON* */
+
#ifndef CLIB_MARCH_VARIANT
+uword
+ip4_full_reass_custom_register_next_node (uword node_index)
+{
+ return vlib_node_add_next (vlib_get_main (),
+ ip4_full_reass_node_custom.index, node_index);
+}
+
always_inline u32
ip4_full_reass_get_nbuckets ()
{
} ip4_rehash_cb_ctx;
#ifndef CLIB_MARCH_VARIANT
-static void
+static int
ip4_rehash_cb (clib_bihash_kv_16_8_t * kv, void *_ctx)
{
ip4_rehash_cb_ctx *ctx = _ctx;
{
ctx->failure = 1;
}
+ return (BIHASH_WALK_CONTINUE);
}
static void
rm->fq_index = vlib_frame_queue_main_init (ip4_full_reass_node.index, 0);
rm->fq_feature_index =
vlib_frame_queue_main_init (ip4_full_reass_node_feature.index, 0);
+ rm->fq_custom_index =
+ vlib_frame_queue_main_init (ip4_full_reass_node_custom.index, 0);
+ rm->feature_use_refcount_per_intf = NULL;
return error;
}
vec_reset_length (pool_indexes_to_free);
/* *INDENT-OFF* */
- pool_foreach_index (index, rt->pool, ({
+ pool_foreach_index (index, rt->pool) {
reass = pool_elt_at_index (rt->pool, index);
if (now > reass->last_heard + rm->timeout)
{
vec_add1 (pool_indexes_to_free, index);
}
- }));
+ }
/* *INDENT-ON* */
int *i;
/* *INDENT-OFF* */
if (details)
{
/* *INDENT-OFF* */
- pool_foreach (reass, rt->pool, {
+ pool_foreach (reass, rt->pool) {
vlib_cli_output (vm, "%U", format_ip4_reass, vm, reass);
- });
+ }
/* *INDENT-ON* */
}
sum_reass_n += rt->reass_n;
clib_spinlock_unlock (&rt->lock);
}
vlib_cli_output (vm, "---------------------");
- vlib_cli_output (vm, "Current IP4 reassemblies count: %lu\n",
+ vlib_cli_output (vm, "Current full IP4 reassemblies count: %lu\n",
(long unsigned) sum_reass_n);
vlib_cli_output (vm,
- "Maximum configured concurrent IP4 reassemblies per worker-thread: %lu\n",
+ "Maximum configured concurrent full IP4 reassemblies per worker-thread: %lu\n",
(long unsigned) rm->max_reass_n);
+ vlib_cli_output (vm,
+ "Maximum configured full IP4 reassembly timeout: %lums\n",
+ (long unsigned) rm->timeout_ms);
+ vlib_cli_output (vm,
+ "Maximum configured full IP4 reassembly expire walk interval: %lums\n",
+ (long unsigned) rm->expire_walk_interval_ms);
return 0;
}
always_inline uword
ip4_full_reass_handoff_node_inline (vlib_main_t * vm,
vlib_node_runtime_t * node,
- vlib_frame_t * frame, bool is_feature)
+ vlib_frame_t * frame,
+ ip4_full_reass_node_type_t type)
{
ip4_full_reass_main_t *rm = &ip4_full_reass_main;
b = bufs;
ti = thread_indices;
- fq_index = (is_feature) ? rm->fq_feature_index : rm->fq_index;
+ switch (type)
+ {
+ case NORMAL:
+ fq_index = rm->fq_index;
+ break;
+ case FEATURE:
+ fq_index = rm->fq_feature_index;
+ break;
+ case CUSTOM:
+ fq_index = rm->fq_custom_index;
+ break;
+ default:
+ clib_warning ("Unexpected `type' (%d)!", type);
+ ASSERT (0);
+ }
while (n_left_from > 0)
{
vlib_node_runtime_t * node,
vlib_frame_t * frame)
{
- return ip4_full_reass_handoff_node_inline (vm, node, frame,
- false /* is_feature */ );
+ return ip4_full_reass_handoff_node_inline (vm, node, frame, NORMAL);
}
node,
vlib_frame_t * frame)
{
- return ip4_full_reass_handoff_node_inline (vm, node, frame,
- true /* is_feature */ );
+ return ip4_full_reass_handoff_node_inline (vm, node, frame, FEATURE);
}
/* *INDENT-ON* */
};
/* *INDENT-ON* */
+/* *INDENT-OFF* */
+VLIB_NODE_FN (ip4_full_reass_custom_handoff_node) (vlib_main_t * vm,
+ vlib_node_runtime_t *
+ node,
+ vlib_frame_t * frame)
+{
+ return ip4_full_reass_handoff_node_inline (vm, node, frame, CUSTOM);
+}
+/* *INDENT-ON* */
+
+
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (ip4_full_reass_custom_handoff_node) = {
+ .name = "ip4-full-reass-custom-hoff",
+ .vector_size = sizeof (u32),
+ .n_errors = ARRAY_LEN(ip4_full_reass_handoff_error_strings),
+ .error_strings = ip4_full_reass_handoff_error_strings,
+ .format_trace = format_ip4_full_reass_handoff_trace,
+
+ .n_next_nodes = 1,
+
+ .next_nodes = {
+ [0] = "error-drop",
+ },
+};
+/* *INDENT-ON* */
+
+#ifndef CLIB_MARCH_VARIANT
+int
+ip4_full_reass_enable_disable_with_refcnt (u32 sw_if_index, int is_enable)
+{
+ ip4_full_reass_main_t *rm = &ip4_full_reass_main;
+ vec_validate (rm->feature_use_refcount_per_intf, sw_if_index);
+ if (is_enable)
+ {
+ if (!rm->feature_use_refcount_per_intf[sw_if_index])
+ {
+ ++rm->feature_use_refcount_per_intf[sw_if_index];
+ return vnet_feature_enable_disable ("ip4-unicast",
+ "ip4-full-reassembly-feature",
+ sw_if_index, 1, 0, 0);
+ }
+ ++rm->feature_use_refcount_per_intf[sw_if_index];
+ }
+ else
+ {
+ --rm->feature_use_refcount_per_intf[sw_if_index];
+ if (!rm->feature_use_refcount_per_intf[sw_if_index])
+ return vnet_feature_enable_disable ("ip4-unicast",
+ "ip4-full-reassembly-feature",
+ sw_if_index, 0, 0, 0);
+ }
+ return -1;
+}
+#endif
+
/*
* fd.io coding-style-patch-verification: ON
*