#define IP6_REASS_TIMEOUT_DEFAULT_MS 100
#define IP6_REASS_EXPIRE_WALK_INTERVAL_DEFAULT_MS 10000 // 10 seconds default
#define IP6_REASS_MAX_REASSEMBLIES_DEFAULT 1024
+#define IP6_REASS_MAX_REASSEMBLY_LENGTH_DEFAULT 3
#define IP6_REASS_HT_LOAD_FACTOR (0.75)
typedef enum
{
IP6_REASS_RC_OK,
IP6_REASS_RC_INTERNAL_ERROR,
+ IP6_REASS_RC_TOO_MANY_FRAGMENTS,
+ IP6_REASS_RC_NO_BUF,
+ IP6_REASS_RC_HANDOFF,
} ip6_reass_rc_t;
typedef struct
};
} ip6_reass_key_t;
+typedef union
+{
+ struct
+ {
+ u32 reass_index;
+ u32 memory_owner_thread_index;
+ };
+ u64 as_u64;
+} ip6_reass_val_t;
+
+typedef union
+{
+ struct
+ {
+ ip6_reass_key_t k;
+ ip6_reass_val_t v;
+ };
+ clib_bihash_kv_48_8_t kv;
+} ip6_reass_kv_t;
+
+
always_inline u32
ip6_reass_buffer_get_data_offset (vlib_buffer_t * b)
{
u32 data_len;
// trace operation counter
u32 trace_op_counter;
- // next index - used by non-feature node
- u8 next_index;
+ // next index - used by custom apps (~0 if not set)
+ u32 next_index;
+ // error next index - used by custom apps (~0 if not set)
+ u32 error_next_index;
// minimum fragment length for this reassembly - used to estimate MTU
u16 min_fragment_length;
+ // number of fragments for this reassembly
+ u32 fragments_n;
+ // thread owning memory for this context (whose pool contains this ctx)
+ u32 memory_owner_thread_index;
+ // thread which received fragment with offset 0 and which sends out the
+ // completed reassembly
+ u32 sendout_thread_index;
} ip6_reass_t;
typedef struct
{
ip6_reass_t *pool;
u32 reass_n;
- u32 buffers_n;
u32 id_counter;
clib_spinlock_t lock;
} ip6_reass_per_thread_t;
u32 timeout_ms;
f64 timeout;
u32 expire_walk_interval_ms;
+ // maximum number of fragments in one reassembly
+ u32 max_reass_len;
+ // maximum number of reassemblies
u32 max_reass_n;
// IPv6 runtime
// convenience
vlib_main_t *vlib_main;
- vnet_main_t *vnet_main;
// node index of ip6-drop node
u32 ip6_drop_idx;
u32 ip6_icmp_error_idx;
u32 ip6_reass_expire_node_idx;
+ /** Worker handoff */
+ u32 fq_index;
+ u32 fq_feature_index;
+
} ip6_reass_main_t;
+extern ip6_reass_main_t ip6_reass_main;
+
+#ifndef CLIB_MARCH_VARIANT
ip6_reass_main_t ip6_reass_main;
+#endif /* CLIB_MARCH_VARIANT */
typedef enum
{
IP6_REASSEMBLY_NEXT_INPUT,
IP6_REASSEMBLY_NEXT_DROP,
IP6_REASSEMBLY_NEXT_ICMP_ERROR,
+ IP6_REASSEMBLY_NEXT_HANDOFF,
IP6_REASSEMBLY_N_NEXT,
} ip6_reass_next_t;
ICMP_ERROR_FL_TOO_BIG,
ICMP_ERROR_FL_NOT_MULT_8,
FINALIZE,
+ HANDOFF,
} ip6_reass_trace_operation_e;
typedef struct
ip6_reass_trace_operation_e action;
u32 reass_id;
ip6_reass_range_trace_t trace_range;
- u32 size_diff;
u32 op_id;
u32 fragment_first;
u32 fragment_last;
u32 total_data_len;
+ u32 thread_id;
+ u32 thread_id_to;
} ip6_reass_trace_t;
static void
CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
ip6_reass_trace_t *t = va_arg (*args, ip6_reass_trace_t *);
- s = format (s, "reass id: %u, op id: %u ", t->reass_id, t->op_id);
- u32 indent = format_get_indent (s);
- s = format (s, "first bi: %u, data len: %u, ip/fragment[%u, %u]",
- t->trace_range.first_bi, t->total_data_len, t->fragment_first,
- t->fragment_last);
+ u32 indent = 0;
+ if (~0 != t->reass_id)
+ {
+ s = format (s, "reass id: %u, op id: %u ", t->reass_id, t->op_id);
+ indent = format_get_indent (s);
+ s = format (s, "first bi: %u, data len: %u, ip/fragment[%u, %u]",
+ t->trace_range.first_bi, t->total_data_len,
+ t->fragment_first, t->fragment_last);
+ }
switch (t->action)
{
case RANGE_NEW:
case FINALIZE:
s = format (s, "\n%Ufinalize reassembly", format_white_space, indent);
break;
+ case HANDOFF:
+ s =
+ format (s, "handoff from thread #%u to thread #%u", t->thread_id,
+ t->thread_id_to);
+ break;
}
return s;
}
static void
ip6_reass_add_trace (vlib_main_t * vm, vlib_node_runtime_t * node,
- ip6_reass_main_t * rm, ip6_reass_t * reass,
- u32 bi, ip6_reass_trace_operation_e action,
- u32 size_diff)
+ ip6_reass_main_t * rm, u32 reass_id, u32 op_id,
+ u32 bi, u32 first_bi, u32 data_len,
+ ip6_reass_trace_operation_e action, u32 thread_id_to)
{
vlib_buffer_t *b = vlib_get_buffer (vm, bi);
vnet_buffer_opaque_t *vnb = vnet_buffer (b);
- if (pool_is_free_index (vm->trace_main.trace_buffer_pool, b->trace_index))
- {
- // this buffer's trace is gone
- b->flags &= ~VLIB_BUFFER_IS_TRACED;
- return;
- }
ip6_reass_trace_t *t = vlib_add_trace (vm, node, b, sizeof (t[0]));
- t->reass_id = reass->id;
+ t->reass_id = reass_id;
t->action = action;
ip6_reass_trace_details (vm, bi, &t->trace_range);
- t->size_diff = size_diff;
- t->op_id = reass->trace_op_counter;
- ++reass->trace_op_counter;
+ t->op_id = op_id;
+ t->thread_id = vm->thread_index;
+ t->thread_id_to = thread_id_to;
t->fragment_first = vnb->ip.reass.fragment_first;
t->fragment_last = vnb->ip.reass.fragment_last;
- t->trace_range.first_bi = reass->first_bi;
- t->total_data_len = reass->data_len;
+ t->trace_range.first_bi = first_bi;
+ t->total_data_len = data_len;
#if 0
static u8 *s = NULL;
s = format (s, "%U", format_ip6_reass_trace, NULL, NULL, t);
#endif
}
+always_inline void
+ip6_reass_free_ctx (ip6_reass_per_thread_t * rt, ip6_reass_t * reass)
+{
+ pool_put (rt->pool, reass);
+ --rt->reass_n;
+}
+
always_inline void
ip6_reass_free (ip6_reass_main_t * rm, ip6_reass_per_thread_t * rt,
ip6_reass_t * reass)
kv.key[4] = reass->key.as_u64[4];
kv.key[5] = reass->key.as_u64[5];
clib_bihash_add_del_48_8 (&rm->hash, &kv, 0);
- pool_put (rt->pool, reass);
- --rt->reass_n;
+ ip6_reass_free_ctx (rt, reass);
}
always_inline void
-ip6_reass_drop_all (vlib_main_t * vm, ip6_reass_main_t * rm,
- ip6_reass_t * reass, u32 ** vec_drop_bi)
+ip6_reass_drop_all (vlib_main_t * vm, vlib_node_runtime_t * node,
+ ip6_reass_main_t * rm, ip6_reass_t * reass)
{
u32 range_bi = reass->first_bi;
vlib_buffer_t *range_b;
vnet_buffer_opaque_t *range_vnb;
+ u32 *to_free = NULL;
while (~0 != range_bi)
{
range_b = vlib_get_buffer (vm, range_bi);
u32 bi = range_bi;
while (~0 != bi)
{
- vec_add1 (*vec_drop_bi, bi);
+ vec_add1 (to_free, bi);
vlib_buffer_t *b = vlib_get_buffer (vm, bi);
if (b->flags & VLIB_BUFFER_NEXT_PRESENT)
{
}
range_bi = range_vnb->ip.reass.next_range_bi;
}
+ /* send to next_error_index */
+ if (~0 != reass->error_next_index)
+ {
+ u32 n_left_to_next, *to_next, next_index;
+
+ next_index = reass->error_next_index;
+ u32 bi = ~0;
+
+ while (vec_len (to_free) > 0)
+ {
+ vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
+
+ while (vec_len (to_free) > 0 && n_left_to_next > 0)
+ {
+ bi = vec_pop (to_free);
+
+ if (~0 != bi)
+ {
+ to_next[0] = bi;
+ to_next += 1;
+ n_left_to_next -= 1;
+ }
+ }
+ vlib_put_next_frame (vm, node, next_index, n_left_to_next);
+ }
+ }
+ else
+ {
+ vlib_buffer_free (vm, to_free, vec_len (to_free));
+ }
+ vec_free (to_free);
}
always_inline void
ip6_reass_on_timeout (vlib_main_t * vm, vlib_node_runtime_t * node,
- ip6_reass_main_t * rm, ip6_reass_per_thread_t * rt,
- ip6_reass_t * reass, u32 * icmp_bi, u32 ** vec_timeout)
+ ip6_reass_main_t * rm, ip6_reass_t * reass,
+ u32 * icmp_bi)
{
if (~0 == reass->first_bi)
{
return;
}
- vlib_buffer_t *b = vlib_get_buffer (vm, reass->first_bi);
- if (0 == vnet_buffer (b)->ip.reass.fragment_first)
+ if (~0 == reass->next_index) // custom apps don't want icmp
{
- *icmp_bi = reass->first_bi;
- if (PREDICT_FALSE (b->flags & VLIB_BUFFER_IS_TRACED))
- {
- ip6_reass_add_trace (vm, node, rm, reass, reass->first_bi,
- ICMP_ERROR_RT_EXCEEDED, 0);
- }
- // fragment with offset zero received - send icmp message back
- if (b->flags & VLIB_BUFFER_NEXT_PRESENT)
- {
- // separate first buffer from chain and steer it towards icmp node
- b->flags &= ~VLIB_BUFFER_NEXT_PRESENT;
- reass->first_bi = b->next_buffer;
- }
- else
+ vlib_buffer_t *b = vlib_get_buffer (vm, reass->first_bi);
+ if (0 == vnet_buffer (b)->ip.reass.fragment_first)
{
- reass->first_bi = vnet_buffer (b)->ip.reass.next_range_bi;
+ *icmp_bi = reass->first_bi;
+ if (PREDICT_FALSE (b->flags & VLIB_BUFFER_IS_TRACED))
+ {
+ ip6_reass_add_trace (vm, node, rm, reass->id,
+ reass->trace_op_counter, reass->first_bi,
+ reass->first_bi, reass->data_len,
+ ICMP_ERROR_RT_EXCEEDED, ~0);
+ ++reass->trace_op_counter;
+ }
+ // fragment with offset zero received - send icmp message back
+ if (b->flags & VLIB_BUFFER_NEXT_PRESENT)
+ {
+ // separate first buffer from chain and steer it towards icmp node
+ b->flags &= ~VLIB_BUFFER_NEXT_PRESENT;
+ reass->first_bi = b->next_buffer;
+ }
+ else
+ {
+ reass->first_bi = vnet_buffer (b)->ip.reass.next_range_bi;
+ }
+ icmp6_error_set_vnet_buffer (b, ICMP6_time_exceeded,
+ ICMP6_time_exceeded_fragment_reassembly_time_exceeded,
+ 0);
}
- --rt->buffers_n;
- icmp6_error_set_vnet_buffer (b, ICMP6_time_exceeded,
- ICMP6_time_exceeded_fragment_reassembly_time_exceeded,
- 0);
}
- ip6_reass_drop_all (vm, rm, reass, vec_timeout);
+ ip6_reass_drop_all (vm, node, rm, reass);
}
always_inline ip6_reass_t *
ip6_reass_find_or_create (vlib_main_t * vm, vlib_node_runtime_t * node,
ip6_reass_main_t * rm, ip6_reass_per_thread_t * rt,
- ip6_reass_key_t * k, u32 * icmp_bi,
- u32 ** vec_timeout)
+ ip6_reass_kv_t * kv, u32 * icmp_bi, u8 * do_handoff)
{
- ip6_reass_t *reass = NULL;
- f64 now = vlib_time_now (rm->vlib_main);
- clib_bihash_kv_48_8_t kv, value;
- kv.key[0] = k->as_u64[0];
- kv.key[1] = k->as_u64[1];
- kv.key[2] = k->as_u64[2];
- kv.key[3] = k->as_u64[3];
- kv.key[4] = k->as_u64[4];
- kv.key[5] = k->as_u64[5];
-
- if (!clib_bihash_search_48_8 (&rm->hash, &kv, &value))
+ ip6_reass_t *reass;
+ f64 now;
+
+again:
+
+ reass = NULL;
+ now = vlib_time_now (vm);
+
+ if (!clib_bihash_search_48_8
+ (&rm->hash, (clib_bihash_kv_48_8_t *) kv, (clib_bihash_kv_48_8_t *) kv))
{
- reass = pool_elt_at_index (rt->pool, value.value);
+ reass =
+ pool_elt_at_index (rm->per_thread_data
+ [kv->v.memory_owner_thread_index].pool,
+ kv->v.reass_index);
+ if (vm->thread_index != kv->v.memory_owner_thread_index)
+ {
+ *do_handoff = 1;
+ return reass;
+ }
+
if (now > reass->last_heard + rm->timeout)
{
- ip6_reass_on_timeout (vm, node, rm, rt, reass, icmp_bi,
- vec_timeout);
+ ip6_reass_on_timeout (vm, node, rm, reass, icmp_bi);
ip6_reass_free (rm, rt, reass);
reass = NULL;
}
{
pool_get (rt->pool, reass);
clib_memset (reass, 0, sizeof (*reass));
- reass->id =
- ((u64) os_get_thread_index () * 1000000000) + rt->id_counter;
+ reass->id = ((u64) vm->thread_index * 1000000000) + rt->id_counter;
++rt->id_counter;
reass->first_bi = ~0;
reass->last_packet_octet = ~0;
reass->data_len = 0;
+ reass->next_index = ~0;
+ reass->error_next_index = ~0;
++rt->reass_n;
}
- reass->key.as_u64[0] = kv.key[0] = k->as_u64[0];
- reass->key.as_u64[1] = kv.key[1] = k->as_u64[1];
- reass->key.as_u64[2] = kv.key[2] = k->as_u64[2];
- reass->key.as_u64[3] = kv.key[3] = k->as_u64[3];
- reass->key.as_u64[4] = kv.key[4] = k->as_u64[4];
- reass->key.as_u64[5] = kv.key[5] = k->as_u64[5];
- kv.value = reass - rt->pool;
+ reass->key.as_u64[0] = ((clib_bihash_kv_48_8_t *) kv)->key[0];
+ reass->key.as_u64[1] = ((clib_bihash_kv_48_8_t *) kv)->key[1];
+ reass->key.as_u64[2] = ((clib_bihash_kv_48_8_t *) kv)->key[2];
+ reass->key.as_u64[3] = ((clib_bihash_kv_48_8_t *) kv)->key[3];
+ reass->key.as_u64[4] = ((clib_bihash_kv_48_8_t *) kv)->key[4];
+ reass->key.as_u64[5] = ((clib_bihash_kv_48_8_t *) kv)->key[5];
+ kv->v.reass_index = (reass - rt->pool);
+ kv->v.memory_owner_thread_index = vm->thread_index;
reass->last_heard = now;
- if (clib_bihash_add_del_48_8 (&rm->hash, &kv, 1))
+ int rv =
+ clib_bihash_add_del_48_8 (&rm->hash, (clib_bihash_kv_48_8_t *) kv, 2);
+ if (rv)
{
- ip6_reass_free (rm, rt, reass);
+ ip6_reass_free_ctx (rt, reass);
reass = NULL;
+ // if other worker created a context already work with the other copy
+ if (-2 == rv)
+ goto again;
}
return reass;
always_inline ip6_reass_rc_t
ip6_reass_finalize (vlib_main_t * vm, vlib_node_runtime_t * node,
ip6_reass_main_t * rm, ip6_reass_per_thread_t * rt,
- ip6_reass_t * reass, u32 * bi0, u32 * next0,
- u32 * error0, u32 ** vec_drop_compress, bool is_feature)
+ ip6_reass_t * reass, u32 * bi0, u32 * next0, u32 * error0,
+ bool is_custom_app)
{
*bi0 = reass->first_bi;
*error0 = IP6_ERROR_NONE;
u32 total_length = 0;
u32 buf_cnt = 0;
u32 dropped_cnt = 0;
+ u32 *vec_drop_compress = NULL;
+ ip6_reass_rc_t rv = IP6_REASS_RC_OK;
do
{
u32 tmp_bi = sub_chain_bi;
if (!(vnb->ip.reass.range_first >= vnb->ip.reass.fragment_first) &&
!(vnb->ip.reass.range_last > vnb->ip.reass.fragment_first))
{
- return IP6_REASS_RC_INTERNAL_ERROR;
+ rv = IP6_REASS_RC_INTERNAL_ERROR;
+ goto free_buffers_and_return;
}
u32 data_len = ip6_reass_buffer_get_data_len (tmp);
/* first buffer - keep ip6 header */
if (0 != ip6_reass_buffer_get_data_offset (tmp))
{
- return IP6_REASS_RC_INTERNAL_ERROR;
+ rv = IP6_REASS_RC_INTERNAL_ERROR;
+ goto free_buffers_and_return;
}
trim_front = 0;
trim_end = vlib_buffer_length_in_chain (vm, tmp) - data_len -
sizeof (*frag_hdr));
if (!(vlib_buffer_length_in_chain (vm, tmp) - trim_end > 0))
{
- return IP6_REASS_RC_INTERNAL_ERROR;
+ rv = IP6_REASS_RC_INTERNAL_ERROR;
+ goto free_buffers_and_return;
}
}
u32 keep_data =
if (trim_front > tmp->current_length)
{
/* drop whole buffer */
- vec_add1 (*vec_drop_compress, tmp_bi);
- ++dropped_cnt;
+ vec_add1 (vec_drop_compress, tmp_bi);
trim_front -= tmp->current_length;
if (!(tmp->flags & VLIB_BUFFER_NEXT_PRESENT))
{
- return IP6_REASS_RC_INTERNAL_ERROR;
+ rv = IP6_REASS_RC_INTERNAL_ERROR;
+ goto free_buffers_and_return;
}
tmp->flags &= ~VLIB_BUFFER_NEXT_PRESENT;
tmp_bi = tmp->next_buffer;
keep_data -= tmp->current_length;
if (!(tmp->flags & VLIB_BUFFER_NEXT_PRESENT))
{
- return IP6_REASS_RC_INTERNAL_ERROR;
+ rv = IP6_REASS_RC_INTERNAL_ERROR;
+ goto free_buffers_and_return;
}
}
total_length += tmp->current_length;
}
else
{
- vec_add1 (*vec_drop_compress, tmp_bi);
+ vec_add1 (vec_drop_compress, tmp_bi);
if (reass->first_bi == tmp_bi)
{
- return IP6_REASS_RC_INTERNAL_ERROR;
+ rv = IP6_REASS_RC_INTERNAL_ERROR;
+ goto free_buffers_and_return;
}
++dropped_cnt;
}
if (!last_b)
{
- return IP6_REASS_RC_INTERNAL_ERROR;
+ rv = IP6_REASS_RC_INTERNAL_ERROR;
+ goto free_buffers_and_return;
}
last_b->flags &= ~VLIB_BUFFER_NEXT_PRESENT;
vlib_buffer_t *first_b = vlib_get_buffer (vm, reass->first_bi);
if (total_length < first_b->current_length)
{
- return IP6_REASS_RC_INTERNAL_ERROR;
+ rv = IP6_REASS_RC_INTERNAL_ERROR;
+ goto free_buffers_and_return;
}
total_length -= first_b->current_length;
first_b->flags |= VLIB_BUFFER_TOTAL_LENGTH_VALID;
}
if (!((u8 *) frag_hdr - (u8 *) ip == ip6_frag_hdr_offset))
{
- return IP6_REASS_RC_INTERNAL_ERROR;
+ rv = IP6_REASS_RC_INTERNAL_ERROR;
+ goto free_buffers_and_return;
}
memmove (frag_hdr, (u8 *) frag_hdr + sizeof (*frag_hdr),
first_b->current_length - ip6_frag_hdr_offset -
ip->payload_length =
clib_host_to_net_u16 (total_length + first_b->current_length -
sizeof (*ip));
- vlib_buffer_chain_compress (vm, first_b, vec_drop_compress);
- rt->buffers_n -= buf_cnt - vec_len (*vec_drop_compress);
+ if (!vlib_buffer_chain_linearize (vm, first_b))
+ {
+ rv = IP6_REASS_RC_NO_BUF;
+ goto free_buffers_and_return;
+ }
+ first_b->flags &= ~VLIB_BUFFER_EXT_HDR_VALID;
if (PREDICT_FALSE (first_b->flags & VLIB_BUFFER_IS_TRACED))
{
- ip6_reass_add_trace (vm, node, rm, reass, reass->first_bi, FINALIZE, 0);
+ ip6_reass_add_trace (vm, node, rm, reass->id, reass->trace_op_counter,
+ reass->first_bi, reass->first_bi, reass->data_len,
+ FINALIZE, ~0);
+ ++reass->trace_op_counter;
#if 0
// following code does a hexdump of packet fragments to stdout ...
do
while (0);
#endif
}
- if (is_feature)
+ if (!is_custom_app)
{
*next0 = IP6_REASSEMBLY_NEXT_INPUT;
}
vnet_buffer (first_b)->ip.reass.estimated_mtu = reass->min_fragment_length;
ip6_reass_free (rm, rt, reass);
reass = NULL;
- return IP6_REASS_RC_OK;
-}
-
-always_inline u32
-ip6_reass_get_buffer_chain_length (vlib_main_t * vm, vlib_buffer_t * b)
-{
- u32 len = 0;
- while (b)
- {
- ++len;
- if (PREDICT_FALSE (b->flags & VLIB_BUFFER_NEXT_PRESENT))
- {
- b = vlib_get_buffer (vm, b->next_buffer);
- }
- else
- {
- break;
- }
- }
- return len;
+free_buffers_and_return:
+ vlib_buffer_free (vm, vec_drop_compress, vec_len (vec_drop_compress));
+ vec_free (vec_drop_compress);
+ return rv;
}
always_inline void
reass->first_bi = new_next_bi;
}
reass->data_len += ip6_reass_buffer_get_data_len (new_next_b);
- rt->buffers_n += ip6_reass_get_buffer_chain_length (vm, new_next_b);
}
always_inline ip6_reass_rc_t
ip6_reass_update (vlib_main_t * vm, vlib_node_runtime_t * node,
ip6_reass_main_t * rm, ip6_reass_per_thread_t * rt,
- ip6_reass_t * reass, u32 * bi0, u32 * next0,
- u32 * error0, ip6_frag_hdr_t * frag_hdr,
- u32 ** vec_drop_overlap, u32 ** vec_drop_compress,
- bool is_feature)
+ ip6_reass_t * reass, u32 * bi0, u32 * next0, u32 * error0,
+ ip6_frag_hdr_t * frag_hdr, bool is_custom_app,
+ u32 * handoff_thread_idx)
{
int consumed = 0;
vlib_buffer_t *fb = vlib_get_buffer (vm, *bi0);
vnet_buffer_opaque_t *fvnb = vnet_buffer (fb);
- reass->next_index = fvnb->ip.reass.next_index; // store next_index before it's overwritten
+ if (is_custom_app)
+ {
+ reass->next_index = fvnb->ip.reass.next_index; // store next_index before it's overwritten
+ reass->error_next_index = fvnb->ip.reass.error_next_index; // store error_next_index before it is overwritten
+ }
+
fvnb->ip.reass.ip6_frag_hdr_offset =
(u8 *) frag_hdr - (u8 *) vlib_buffer_get_current (fb);
ip6_header_t *fip = vlib_buffer_get_current (fb);
// starting a new reassembly
ip6_reass_insert_range_in_chain (vm, rm, rt, reass, prev_range_bi,
*bi0);
- if (PREDICT_FALSE (fb->flags & VLIB_BUFFER_IS_TRACED))
- {
- ip6_reass_add_trace (vm, node, rm, reass, *bi0, RANGE_NEW, 0);
- }
reass->min_fragment_length = clib_net_to_host_u16 (fip->payload_length);
- *bi0 = ~0;
- return IP6_REASS_RC_OK;
+ consumed = 1;
+ reass->fragments_n = 1;
+ goto check_if_done_maybe;
}
reass->min_fragment_length =
clib_min (clib_net_to_host_u16 (fip->payload_length),
else
{
// overlapping fragment - not allowed by RFC 8200
- ip6_reass_drop_all (vm, rm, reass, vec_drop_overlap);
+ ip6_reass_drop_all (vm, node, rm, reass);
ip6_reass_free (rm, rt, reass);
if (PREDICT_FALSE (fb->flags & VLIB_BUFFER_IS_TRACED))
{
- ip6_reass_add_trace (vm, node, rm, reass, *bi0, RANGE_OVERLAP,
- 0);
+ ip6_reass_add_trace (vm, node, rm, reass->id,
+ reass->trace_op_counter, *bi0,
+ reass->first_bi, reass->data_len,
+ RANGE_OVERLAP, ~0);
+ ++reass->trace_op_counter;
}
*next0 = IP6_REASSEMBLY_NEXT_DROP;
*error0 = IP6_ERROR_REASS_OVERLAPPING_FRAGMENT;
}
break;
}
+ ++reass->fragments_n;
+check_if_done_maybe:
if (consumed)
{
if (PREDICT_FALSE (fb->flags & VLIB_BUFFER_IS_TRACED))
{
- ip6_reass_add_trace (vm, node, rm, reass, *bi0, RANGE_NEW, 0);
+ ip6_reass_add_trace (vm, node, rm, reass->id,
+ reass->trace_op_counter, *bi0, reass->first_bi,
+ reass->data_len, RANGE_NEW, ~0);
+ ++reass->trace_op_counter;
}
}
if (~0 != reass->last_packet_octet &&
reass->data_len == reass->last_packet_octet + 1)
{
- return ip6_reass_finalize (vm, node, rm, rt, reass, bi0, next0, error0,
- vec_drop_compress, is_feature);
+ *handoff_thread_idx = reass->sendout_thread_index;
+ ip6_reass_rc_t rc =
+ ip6_reass_finalize (vm, node, rm, rt, reass, bi0, next0, error0,
+ is_custom_app);
+ if (IP6_REASS_RC_OK == rc
+ && reass->memory_owner_thread_index != reass->sendout_thread_index)
+ {
+ return IP6_REASS_RC_HANDOFF;
+ }
+ return rc;
}
else
{
if (consumed)
{
*bi0 = ~0;
+ if (reass->fragments_n > rm->max_reass_len)
+ {
+ return IP6_REASS_RC_TOO_MANY_FRAGMENTS;
+ }
}
else
{
}
always_inline uword
-ip6_reassembly_inline (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame, bool is_feature)
+ip6_reassembly_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
+ vlib_frame_t * frame, bool is_feature,
+ bool is_custom_app)
{
u32 *from = vlib_frame_vector_args (frame);
u32 n_left_from, n_left_to_next, *to_next, next_index;
ip6_reass_main_t *rm = &ip6_reass_main;
- ip6_reass_per_thread_t *rt = &rm->per_thread_data[os_get_thread_index ()];
+ ip6_reass_per_thread_t *rt = &rm->per_thread_data[vm->thread_index];
clib_spinlock_lock (&rt->lock);
n_left_from = frame->n_vectors;
next_index = node->cached_next_index;
- static u32 *vec_timeout = NULL; // indexes of buffers which timed out
- static u32 *vec_drop_overlap = NULL; // indexes of buffers dropped due to overlap
- static u32 *vec_drop_internal_error = NULL; // indexes of buffers dropped due to internal errors
- static u32 *vec_drop_compress = NULL; // indexes of buffers dropped due to buffer compression
- while (n_left_from > 0 || vec_len (vec_timeout) > 0
- || vec_len (vec_drop_overlap) > 0 || vec_len (vec_drop_compress) > 0
- || vec_len (vec_drop_internal_error) > 0)
+ while (n_left_from > 0)
{
vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
- while (vec_len (vec_timeout) > 0 && n_left_to_next > 0)
- {
- u32 bi = vec_pop (vec_timeout);
- vlib_buffer_t *b = vlib_get_buffer (vm, bi);
- b->error = node->errors[IP6_ERROR_REASS_TIMEOUT];
- to_next[0] = bi;
- to_next += 1;
- n_left_to_next -= 1;
- vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next,
- n_left_to_next, bi,
- IP6_REASSEMBLY_NEXT_DROP);
- --rt->buffers_n;
- }
-
- while (vec_len (vec_drop_overlap) > 0 && n_left_to_next > 0)
- {
- u32 bi = vec_pop (vec_drop_overlap);
- vlib_buffer_t *b = vlib_get_buffer (vm, bi);
- b->error = node->errors[IP6_ERROR_REASS_OVERLAPPING_FRAGMENT];
- to_next[0] = bi;
- to_next += 1;
- n_left_to_next -= 1;
- vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next,
- n_left_to_next, bi,
- IP6_REASSEMBLY_NEXT_DROP);
- --rt->buffers_n;
- }
-
- while (vec_len (vec_drop_compress) > 0 && n_left_to_next > 0)
- {
- u32 bi = vec_pop (vec_drop_compress);
- vlib_buffer_t *b = vlib_get_buffer (vm, bi);
- b->error = node->errors[IP6_ERROR_NONE];
- to_next[0] = bi;
- to_next += 1;
- n_left_to_next -= 1;
- vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next,
- n_left_to_next, bi,
- IP6_REASSEMBLY_NEXT_DROP);
- --rt->buffers_n;
- }
- while (vec_len (vec_drop_internal_error) > 0 && n_left_to_next > 0)
- {
- u32 bi = vec_pop (vec_drop_internal_error);
- vlib_buffer_t *b = vlib_get_buffer (vm, bi);
- b->error = node->errors[IP6_ERROR_REASS_INTERNAL_ERROR];
- to_next[0] = bi;
- to_next += 1;
- n_left_to_next -= 1;
- vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next,
- n_left_to_next, bi,
- IP6_REASSEMBLY_NEXT_DROP);
- --rt->buffers_n;
- }
-
while (n_left_from > 0 && n_left_to_next > 0)
{
u32 bi0;
vlib_buffer_t *b0;
- u32 next0;
+ u32 next0 = IP6_REASSEMBLY_NEXT_DROP;
u32 error0 = IP6_ERROR_NONE;
u32 icmp_bi = ~0;
vnet_buffer (b0)->ip.reass.ip6_frag_hdr_offset =
(u8 *) frag_hdr - (u8 *) ip0;
- ip6_reass_key_t k;
- k.as_u64[0] = ip0->src_address.as_u64[0];
- k.as_u64[1] = ip0->src_address.as_u64[1];
- k.as_u64[2] = ip0->dst_address.as_u64[0];
- k.as_u64[3] = ip0->dst_address.as_u64[1];
- k.as_u64[4] =
- (u64) vnet_buffer (b0)->
- sw_if_index[VLIB_RX] << 32 | frag_hdr->identification;
- k.as_u64[5] = ip0->protocol;
+ ip6_reass_kv_t kv;
+ u8 do_handoff = 0;
+
+ kv.k.as_u64[0] = ip0->src_address.as_u64[0];
+ kv.k.as_u64[1] = ip0->src_address.as_u64[1];
+ kv.k.as_u64[2] = ip0->dst_address.as_u64[0];
+ kv.k.as_u64[3] = ip0->dst_address.as_u64[1];
+ kv.k.as_u64[4] =
+ ((u64) vec_elt (ip6_main.fib_index_by_sw_if_index,
+ vnet_buffer (b0)->sw_if_index[VLIB_RX])) << 32 |
+ (u64) frag_hdr->identification;
+ kv.k.as_u64[5] = ip0->protocol;
+
ip6_reass_t *reass =
- ip6_reass_find_or_create (vm, node, rm, rt, &k, &icmp_bi,
- &vec_timeout);
+ ip6_reass_find_or_create (vm, node, rm, rt, &kv, &icmp_bi,
+ &do_handoff);
if (reass)
{
+ const u32 fragment_first = ip6_frag_hdr_offset (frag_hdr);
+ if (0 == fragment_first)
+ {
+ reass->sendout_thread_index = vm->thread_index;
+ }
+ }
+ if (PREDICT_FALSE (do_handoff))
+ {
+ next0 = IP6_REASSEMBLY_NEXT_HANDOFF;
+ if (is_feature)
+ vnet_buffer (b0)->ip.reass.owner_feature_thread_index =
+ kv.v.memory_owner_thread_index;
+ else
+ vnet_buffer (b0)->ip.reass.owner_thread_index =
+ kv.v.memory_owner_thread_index;
+ }
+ else if (reass)
+ {
+ u32 handoff_thread_idx;
switch (ip6_reass_update (vm, node, rm, rt, reass, &bi0, &next0,
- &error0, frag_hdr, &vec_drop_overlap,
- &vec_drop_compress, is_feature))
+ &error0, frag_hdr, is_custom_app,
+ &handoff_thread_idx))
{
case IP6_REASS_RC_OK:
/* nothing to do here */
break;
+ case IP6_REASS_RC_HANDOFF:
+ next0 = IP6_REASSEMBLY_NEXT_HANDOFF;
+ b0 = vlib_get_buffer (vm, bi0);
+ if (is_feature)
+ vnet_buffer (b0)->ip.reass.owner_feature_thread_index =
+ handoff_thread_idx;
+ else
+ vnet_buffer (b0)->ip.reass.owner_thread_index =
+ handoff_thread_idx;
+ break;
+ case IP6_REASS_RC_TOO_MANY_FRAGMENTS:
+ vlib_node_increment_counter (vm, node->node_index,
+ IP6_ERROR_REASS_FRAGMENT_CHAIN_TOO_LONG,
+ 1);
+ ip6_reass_drop_all (vm, node, rm, reass);
+ ip6_reass_free (rm, rt, reass);
+ goto next_packet;
+ break;
+ case IP6_REASS_RC_NO_BUF:
+ vlib_node_increment_counter (vm, node->node_index,
+ IP6_ERROR_REASS_NO_BUF, 1);
+ ip6_reass_drop_all (vm, node, rm, reass);
+ ip6_reass_free (rm, rt, reass);
+ goto next_packet;
+ break;
case IP6_REASS_RC_INTERNAL_ERROR:
/* drop everything and start with a clean slate */
- ip6_reass_drop_all (vm, rm, reass,
- &vec_drop_internal_error);
+ vlib_node_increment_counter (vm, node->node_index,
+ IP6_ERROR_REASS_INTERNAL_ERROR,
+ 1);
+ ip6_reass_drop_all (vm, node, rm, reass);
ip6_reass_free (rm, rt, reass);
goto next_packet;
break;
}
else
{
- next0 = IP6_REASSEMBLY_NEXT_DROP;
+ if (is_feature)
+ {
+ next0 = IP6_REASSEMBLY_NEXT_DROP;
+ }
+ else
+ {
+ vnet_buffer_opaque_t *fvnb = vnet_buffer (b0);
+ next0 = fvnb->ip.reass.error_next_index;
+ }
error0 = IP6_ERROR_REASS_LIMIT_REACHED;
}
to_next[0] = bi0;
to_next += 1;
n_left_to_next -= 1;
- if (is_feature && IP6_ERROR_NONE == error0)
+ if (next0 == IP6_REASSEMBLY_NEXT_HANDOFF)
+ {
+ if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
+ {
+ if (is_feature)
+ ip6_reass_add_trace (vm, node, rm, ~0,
+ ~0,
+ bi0, ~0, ~0, HANDOFF,
+ vnet_buffer (b0)->ip.
+ reass.owner_feature_thread_index);
+ else
+ ip6_reass_add_trace (vm, node, rm, ~0, ~0, bi0,
+ ~0, ~0, HANDOFF,
+ vnet_buffer (b0)->ip.
+ reass.owner_thread_index);
+ }
+ }
+ else if (is_feature && IP6_ERROR_NONE == error0)
{
b0 = vlib_get_buffer (vm, bi0);
vnet_feature_next (&next0, b0);
#undef _
};
-static uword
-ip6_reassembly (vlib_main_t * vm, vlib_node_runtime_t * node,
- vlib_frame_t * frame)
+VLIB_NODE_FN (ip6_reass_node) (vlib_main_t * vm, vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
{
- return ip6_reassembly_inline (vm, node, frame, false /* is_feature */ );
+ return ip6_reassembly_inline (vm, node, frame, false /* is_feature */ ,
+ false /* is_custom_app */ );
}
/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (ip6_reass_node, static) = {
- .function = ip6_reassembly,
+VLIB_REGISTER_NODE (ip6_reass_node) = {
.name = "ip6-reassembly",
.vector_size = sizeof (u32),
.format_trace = format_ip6_reass_trace,
[IP6_REASSEMBLY_NEXT_INPUT] = "ip6-input",
[IP6_REASSEMBLY_NEXT_DROP] = "ip6-drop",
[IP6_REASSEMBLY_NEXT_ICMP_ERROR] = "ip6-icmp-error",
+ [IP6_REASSEMBLY_NEXT_HANDOFF] = "ip6-reassembly-handoff",
},
};
/* *INDENT-ON* */
-VLIB_NODE_FUNCTION_MULTIARCH (ip6_reass_node, ip6_reassembly);
-
-static uword
-ip6_reassembly_feature (vlib_main_t * vm,
- vlib_node_runtime_t * node, vlib_frame_t * frame)
+VLIB_NODE_FN (ip6_reass_node_feature) (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
{
- return ip6_reassembly_inline (vm, node, frame, true /* is_feature */ );
+ return ip6_reassembly_inline (vm, node, frame, true /* is_feature */ ,
+ false /* is_custom_app */ );
}
/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (ip6_reass_node_feature, static) = {
- .function = ip6_reassembly_feature,
+VLIB_REGISTER_NODE (ip6_reass_node_feature) = {
.name = "ip6-reassembly-feature",
.vector_size = sizeof (u32),
.format_trace = format_ip6_reass_trace,
[IP6_REASSEMBLY_NEXT_INPUT] = "ip6-input",
[IP6_REASSEMBLY_NEXT_DROP] = "ip6-drop",
[IP6_REASSEMBLY_NEXT_ICMP_ERROR] = "ip6-icmp-error",
+ [IP6_REASSEMBLY_NEXT_HANDOFF] = "ip6-reass-feature-hoff",
},
};
/* *INDENT-ON* */
-VLIB_NODE_FUNCTION_MULTIARCH (ip6_reass_node_feature, ip6_reassembly_feature);
-
/* *INDENT-OFF* */
VNET_FEATURE_INIT (ip6_reassembly_feature, static) = {
.arc_name = "ip6-unicast",
.node_name = "ip6-reassembly-feature",
- .runs_before = VNET_FEATURES ("ip6-lookup"),
+ .runs_before = VNET_FEATURES ("ip6-lookup",
+ "ipsec6-input-feature"),
.runs_after = 0,
};
/* *INDENT-ON* */
+#ifndef CLIB_MARCH_VARIANT
static u32
ip6_reass_get_nbuckets ()
{
return nbuckets;
}
+#endif /* CLIB_MARCH_VARIANT */
typedef enum
{
IP6_EVENT_CONFIG_CHANGED = 1,
} ip6_reass_event_t;
+#ifndef CLIB_MARCH_VARIANT
typedef struct
{
int failure;
static void
ip6_reass_set_params (u32 timeout_ms, u32 max_reassemblies,
- u32 expire_walk_interval_ms)
+ u32 max_reassembly_length, u32 expire_walk_interval_ms)
{
ip6_reass_main.timeout_ms = timeout_ms;
ip6_reass_main.timeout = (f64) timeout_ms / (f64) MSEC_PER_SEC;
ip6_reass_main.max_reass_n = max_reassemblies;
+ ip6_reass_main.max_reass_len = max_reassembly_length;
ip6_reass_main.expire_walk_interval_ms = expire_walk_interval_ms;
}
vnet_api_error_t
ip6_reass_set (u32 timeout_ms, u32 max_reassemblies,
- u32 expire_walk_interval_ms)
+ u32 max_reassembly_length, u32 expire_walk_interval_ms)
{
u32 old_nbuckets = ip6_reass_get_nbuckets ();
- ip6_reass_set_params (timeout_ms, max_reassemblies,
+ ip6_reass_set_params (timeout_ms, max_reassemblies, max_reassembly_length,
expire_walk_interval_ms);
vlib_process_signal_event (ip6_reass_main.vlib_main,
ip6_reass_main.ip6_reass_expire_node_idx,
clib_bihash_free_48_8 (&ip6_reass_main.hash);
clib_memcpy_fast (&ip6_reass_main.hash, &new_hash,
sizeof (ip6_reass_main.hash));
+ clib_bihash_copied (&ip6_reass_main.hash, &new_hash);
}
}
return 0;
vlib_node_t *node;
rm->vlib_main = vm;
- rm->vnet_main = vnet_get_main ();
vec_validate (rm->per_thread_data, vlib_num_workers ());
ip6_reass_per_thread_t *rt;
ip6_reass_set_params (IP6_REASS_TIMEOUT_DEFAULT_MS,
IP6_REASS_MAX_REASSEMBLIES_DEFAULT,
+ IP6_REASS_MAX_REASSEMBLY_LENGTH_DEFAULT,
IP6_REASS_EXPIRE_WALK_INTERVAL_DEFAULT_MS);
nbuckets = ip6_reass_get_nbuckets ();
ip6_register_protocol (IP_PROTOCOL_IPV6_FRAGMENTATION,
ip6_reass_node.index);
+ rm->fq_index = vlib_frame_queue_main_init (ip6_reass_node.index, 0);
+ rm->fq_feature_index =
+ vlib_frame_queue_main_init (ip6_reass_node_feature.index, 0);
+
return error;
}
VLIB_INIT_FUNCTION (ip6_reass_init_function);
+#endif /* CLIB_MARCH_VARIANT */
static uword
ip6_reass_walk_expired (vlib_main_t * vm,
f64 now = vlib_time_now (vm);
ip6_reass_t *reass;
- u32 *vec_timeout = NULL;
int *pool_indexes_to_free = NULL;
uword thread_index = 0;
{
ip6_reass_t *reass = pool_elt_at_index (rt->pool, i[0]);
u32 icmp_bi = ~0;
- u32 before = vec_len (vec_timeout);
- vlib_buffer_t *b = vlib_get_buffer (vm, reass->first_bi);
- if (PREDICT_FALSE (b->flags & VLIB_BUFFER_IS_TRACED))
- {
- if (pool_is_free_index (vm->trace_main.trace_buffer_pool,
- b->trace_index))
- {
- /* the trace is gone, don't trace this buffer anymore */
- b->flags &= ~VLIB_BUFFER_IS_TRACED;
- }
- }
- ip6_reass_on_timeout (vm, node, rm, rt, reass, &icmp_bi, &vec_timeout);
- u32 after = vec_len (vec_timeout);
- rt->buffers_n -= (after - before);
+ ip6_reass_on_timeout (vm, node, rm, reass, &icmp_bi);
if (~0 != icmp_bi)
- {
- vec_add1 (vec_icmp_bi, icmp_bi);
- }
+ vec_add1 (vec_icmp_bi, icmp_bi);
+
ip6_reass_free (rm, rt, reass);
}
/* *INDENT-ON* */
clib_spinlock_unlock (&rt->lock);
}
- while (vec_len (vec_timeout) > 0)
- {
- vlib_frame_t *f = vlib_get_frame_to_node (vm, rm->ip6_drop_idx);
- u32 *to_next = vlib_frame_vector_args (f);
- u32 n_left_to_next = VLIB_FRAME_SIZE - f->n_vectors;
- int trace_frame = 0;
- while (vec_len (vec_timeout) > 0 && n_left_to_next > 0)
- {
- u32 bi = vec_pop (vec_timeout);
- vlib_buffer_t *b = vlib_get_buffer (vm, bi);
- if (PREDICT_FALSE (b->flags & VLIB_BUFFER_IS_TRACED))
- {
- if (pool_is_free_index (vm->trace_main.trace_buffer_pool,
- b->trace_index))
- {
- /* the trace is gone, don't trace this buffer anymore */
- b->flags &= ~VLIB_BUFFER_IS_TRACED;
- }
- else
- {
- trace_frame = 1;
- }
- }
- b->error = node->errors[IP6_ERROR_REASS_TIMEOUT];
- to_next[0] = bi;
- ++f->n_vectors;
- to_next += 1;
- n_left_to_next -= 1;
- }
- f->frame_flags |= (trace_frame * VLIB_FRAME_TRACE);
- vlib_put_frame_to_node (vm, rm->ip6_drop_idx, f);
- }
-
while (vec_len (vec_icmp_bi) > 0)
{
vlib_frame_t *f =
u32 bi = vec_pop (vec_icmp_bi);
vlib_buffer_t *b = vlib_get_buffer (vm, bi);
if (PREDICT_FALSE (b->flags & VLIB_BUFFER_IS_TRACED))
- {
- if (pool_is_free_index (vm->trace_main.trace_buffer_pool,
- b->trace_index))
- {
- /* the trace is gone, don't trace this buffer anymore */
- b->flags &= ~VLIB_BUFFER_IS_TRACED;
- }
- else
- {
- trace_frame = 1;
- }
- }
+ trace_frame = 1;
b->error = node->errors[IP6_ERROR_REASS_TIMEOUT];
to_next[0] = bi;
++f->n_vectors;
}
vec_free (pool_indexes_to_free);
- vec_free (vec_timeout);
vec_free (vec_icmp_bi);
if (event_data)
{
return 0;
}
-static vlib_node_registration_t ip6_reass_expire_node;
-
/* *INDENT-OFF* */
VLIB_REGISTER_NODE (ip6_reass_expire_node, static) = {
.function = ip6_reass_walk_expired,
/* *INDENT-ON* */
}
sum_reass_n += rt->reass_n;
- sum_buffers_n += rt->buffers_n;
clib_spinlock_unlock (&rt->lock);
}
vlib_cli_output (vm, "---------------------");
};
/* *INDENT-ON* */
+#ifndef CLIB_MARCH_VARIANT
vnet_api_error_t
ip6_reass_enable_disable (u32 sw_if_index, u8 enable_disable)
{
return vnet_feature_enable_disable ("ip6-unicast", "ip6-reassembly-feature",
sw_if_index, enable_disable, 0, 0);
}
+#endif /* CLIB_MARCH_VARIANT */
+
+#define foreach_ip6_reassembly_handoff_error \
+_(CONGESTION_DROP, "congestion drop")
+
+
+typedef enum
+{
+#define _(sym,str) IP6_REASSEMBLY_HANDOFF_ERROR_##sym,
+ foreach_ip6_reassembly_handoff_error
+#undef _
+ IP6_REASSEMBLY_HANDOFF_N_ERROR,
+} ip6_reassembly_handoff_error_t;
+
+static char *ip6_reassembly_handoff_error_strings[] = {
+#define _(sym,string) string,
+ foreach_ip6_reassembly_handoff_error
+#undef _
+};
+
+typedef struct
+{
+ u32 next_worker_index;
+} ip6_reassembly_handoff_trace_t;
+
+static u8 *
+format_ip6_reassembly_handoff_trace (u8 * s, va_list * args)
+{
+ CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
+ CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
+ ip6_reassembly_handoff_trace_t *t =
+ va_arg (*args, ip6_reassembly_handoff_trace_t *);
+
+ s =
+ format (s, "ip6-reassembly-handoff: next-worker %d",
+ t->next_worker_index);
+
+ return s;
+}
+
+always_inline uword
+ip6_reassembly_handoff_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
+ vlib_frame_t * frame, bool is_feature)
+{
+ ip6_reass_main_t *rm = &ip6_reass_main;
+
+ vlib_buffer_t *bufs[VLIB_FRAME_SIZE], **b;
+ u32 n_enq, n_left_from, *from;
+ u16 thread_indices[VLIB_FRAME_SIZE], *ti;
+ u32 fq_index;
+
+ from = vlib_frame_vector_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;
+
+ while (n_left_from > 0)
+ {
+ ti[0] =
+ (is_feature) ? vnet_buffer (b[0])->ip.
+ reass.owner_feature_thread_index : vnet_buffer (b[0])->ip.
+ reass.owner_thread_index;
+
+ if (PREDICT_FALSE
+ ((node->flags & VLIB_NODE_FLAG_TRACE)
+ && (b[0]->flags & VLIB_BUFFER_IS_TRACED)))
+ {
+ ip6_reassembly_handoff_trace_t *t =
+ vlib_add_trace (vm, node, b[0], sizeof (*t));
+ t->next_worker_index = ti[0];
+ }
+
+ n_left_from -= 1;
+ ti += 1;
+ b += 1;
+ }
+ n_enq =
+ vlib_buffer_enqueue_to_thread (vm, fq_index, from, thread_indices,
+ frame->n_vectors, 1);
+
+ if (n_enq < frame->n_vectors)
+ vlib_node_increment_counter (vm, node->node_index,
+ IP6_REASSEMBLY_HANDOFF_ERROR_CONGESTION_DROP,
+ frame->n_vectors - n_enq);
+ return frame->n_vectors;
+}
+
+VLIB_NODE_FN (ip6_reassembly_handoff_node) (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
+{
+ return ip6_reassembly_handoff_inline (vm, node, frame,
+ false /* is_feature */ );
+}
+
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (ip6_reassembly_handoff_node) = {
+ .name = "ip6-reassembly-handoff",
+ .vector_size = sizeof (u32),
+ .n_errors = ARRAY_LEN(ip6_reassembly_handoff_error_strings),
+ .error_strings = ip6_reassembly_handoff_error_strings,
+ .format_trace = format_ip6_reassembly_handoff_trace,
+
+ .n_next_nodes = 1,
+
+ .next_nodes = {
+ [0] = "error-drop",
+ },
+};
+
+
+VLIB_NODE_FN (ip6_reassembly_feature_handoff_node) (vlib_main_t * vm,
+ vlib_node_runtime_t * node, vlib_frame_t * frame)
+{
+ return ip6_reassembly_handoff_inline (vm, node, frame, true /* is_feature */ );
+}
+
+
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (ip6_reassembly_feature_handoff_node) = {
+ .name = "ip6-reass-feature-hoff",
+ .vector_size = sizeof (u32),
+ .n_errors = ARRAY_LEN(ip6_reassembly_handoff_error_strings),
+ .error_strings = ip6_reassembly_handoff_error_strings,
+ .format_trace = format_ip6_reassembly_handoff_trace,
+
+ .n_next_nodes = 1,
+
+ .next_nodes = {
+ [0] = "error-drop",
+ },
+};
+/* *INDENT-ON* */
/*
* fd.io coding-style-patch-verification: ON
Code Review / vpp.git / blobdiff