diff options
Diffstat (limited to 'src/vnet/srv6/sr_localsid.c')
| -rwxr-xr-x | src/vnet/srv6/sr_localsid.c | 801 |
1 files changed, 792 insertions, 9 deletions
diff --git a/src/vnet/srv6/sr_localsid.c b/src/vnet/srv6/sr_localsid.c index 4c21edfe0ef..82f5e3b7c1e 100755 --- a/src/vnet/srv6/sr_localsid.c +++ b/src/vnet/srv6/sr_localsid.c @@ -45,6 +45,17 @@ */ static dpo_type_t sr_localsid_dpo_type; static dpo_type_t sr_localsid_d_dpo_type; +static dpo_type_t sr_localsid_un_dpo_type; +static dpo_type_t sr_localsid_un_perf_dpo_type; + +static void +sr_localsid_key_create (sr_localsid_key_t * key, ip6_address_t * addr, + u16 pref_len) +{ + clib_memset (key, 0, sizeof (sr_localsid_key_t)); + clib_memcpy (&key->address, addr, sizeof (ip6_address_t)); + key->pref_len = pref_len; +} /** * @brief SR localsid add/del @@ -66,20 +77,22 @@ int sr_cli_localsid (char is_del, ip6_address_t * localsid_addr, u16 localsid_prefix_len, char end_psp, u8 behavior, u32 sw_if_index, u32 vlan_index, u32 fib_table, - ip46_address_t * nh_addr, void *ls_plugin_mem) + ip46_address_t * nh_addr, int usid_len, void *ls_plugin_mem) { ip6_sr_main_t *sm = &sr_main; uword *p; int rv; u8 pref_length = 128; sr_localsid_fn_registration_t *plugin = 0; + sr_localsid_key_t key; ip6_sr_localsid_t *ls = 0; dpo_id_t dpo = DPO_INVALID; /* Search for the item */ - p = mhash_get (&sm->sr_localsids_index_hash, localsid_addr); + sr_localsid_key_create (&key, localsid_addr, localsid_prefix_len); + p = mhash_get (&sm->sr_localsids_index_hash, &key); if (p) { @@ -125,7 +138,7 @@ sr_cli_localsid (char is_del, ip6_address_t * localsid_addr, /* Delete localsid registry */ pool_put (sm->localsids, ls); - mhash_unset (&sm->sr_localsids_index_hash, localsid_addr, NULL); + mhash_unset (&sm->sr_localsids_index_hash, &key, NULL); return 0; } else /* create with function already existing; complain */ @@ -183,6 +196,23 @@ sr_cli_localsid (char is_del, ip6_address_t * localsid_addr, { case SR_BEHAVIOR_END: break; + case SR_BEHAVIOR_END_UN: + case SR_BEHAVIOR_END_UN_PERF: + if (usid_len) + { + int usid_width; + clib_memcpy (&ls->usid_block, localsid_addr, + sizeof (ip6_address_t)); + + usid_width = pref_length - usid_len; + ip6_address_mask_from_width (&ls->usid_block_mask, usid_width); + + ls->usid_index = usid_width / 8; + ls->usid_len = usid_len / 8; + ls->usid_next_index = ls->usid_index + ls->usid_len; + ls->usid_next_len = 16 - ls->usid_next_index; + } + break; case SR_BEHAVIOR_X: ls->sw_if_index = sw_if_index; clib_memcpy (&ls->next_hop.ip6, &nh_addr->ip6, sizeof (ip6_address_t)); @@ -239,6 +269,12 @@ sr_cli_localsid (char is_del, ip6_address_t * localsid_addr, if (ls->behavior == SR_BEHAVIOR_END || ls->behavior == SR_BEHAVIOR_X || ls->behavior == SR_BEHAVIOR_T) dpo_set (&dpo, sr_localsid_dpo_type, DPO_PROTO_IP6, ls - sm->localsids); + else if (ls->behavior == SR_BEHAVIOR_END_UN) + dpo_set (&dpo, sr_localsid_un_dpo_type, DPO_PROTO_IP6, + ls - sm->localsids); + else if (ls->behavior == SR_BEHAVIOR_END_UN_PERF) + dpo_set (&dpo, sr_localsid_un_perf_dpo_type, DPO_PROTO_IP6, + ls - sm->localsids); else if (ls->behavior > SR_BEHAVIOR_D_FIRST && ls->behavior < SR_BEHAVIOR_LAST) dpo_set (&dpo, sr_localsid_d_dpo_type, DPO_PROTO_IP6, ls - sm->localsids); @@ -260,8 +296,7 @@ sr_cli_localsid (char is_del, ip6_address_t * localsid_addr, } /* Set hash key for searching localsid by address */ - mhash_set (&sm->sr_localsids_index_hash, localsid_addr, ls - sm->localsids, - NULL); + mhash_set (&sm->sr_localsids_index_hash, &key, ls - sm->localsids, NULL); fib_table_entry_special_dpo_add (fib_index, &pfx, FIB_SOURCE_SR, FIB_ENTRY_FLAG_EXCLUSIVE, &dpo); @@ -301,6 +336,7 @@ sr_cli_localsid_command_fn (vlib_main_t * vm, unformat_input_t * input, char address_set = 0; char behavior = 0; void *ls_plugin_mem = 0; + int usid_size = 0; int rv; @@ -349,6 +385,10 @@ sr_cli_localsid_command_fn (vlib_main_t * vm, unformat_input_t * input, behavior = SR_BEHAVIOR_DT6; else if (unformat (input, "end.dt4 %u", &sw_if_index)) behavior = SR_BEHAVIOR_DT4; + else if (unformat (input, "un %u", &usid_size)) + behavior = SR_BEHAVIOR_END_UN_PERF; + else if (unformat (input, "un.flex %u", &usid_size)) + behavior = SR_BEHAVIOR_END_UN; else { /* Loop over all the plugin behavior format functions */ @@ -391,6 +431,22 @@ sr_cli_localsid_command_fn (vlib_main_t * vm, unformat_input_t * input, if (!behavior && end_psp) behavior = SR_BEHAVIOR_END; + if (usid_size) + { + if (prefix_len < usid_size) + return clib_error_return (0, + "Error: Prefix length must be greater" + " than uSID length."); + + if (usid_size != 16 && usid_size != 32) + return clib_error_return (0, + "Error: Invalid uSID length (16 or 32)."); + + if ((prefix_len - usid_size) & 0x7) + return clib_error_return (0, + "Error: Prefix Length must be multiple of 8."); + } + if (!address_set) return clib_error_return (0, "Error: SRv6 LocalSID address is mandatory."); @@ -407,7 +463,19 @@ sr_cli_localsid_command_fn (vlib_main_t * vm, unformat_input_t * input, rv = sr_cli_localsid (is_del, &resulting_address, prefix_len, end_psp, behavior, sw_if_index, vlan_index, fib_index, &next_hop, - ls_plugin_mem); + usid_size, ls_plugin_mem); + + if (behavior == SR_BEHAVIOR_END_UN_PERF) + { + if (rv == 0) + { + u16 perf_len; + perf_len = prefix_len + usid_size; + rv = sr_cli_localsid (is_del, &resulting_address, perf_len, end_psp, + SR_BEHAVIOR_END, sw_if_index, vlan_index, + fib_index, &next_hop, 0, ls_plugin_mem); + } + } switch (rv) { @@ -451,6 +519,7 @@ VLIB_CLI_COMMAND (sr_localsid_command, static) = { "\tbehavior STRING Specifies the behavior\n" "\n\tBehaviors:\n" "\tEnd\t-> Endpoint.\n" + "\tEnd.uN\t-> Endpoint with uSID.\n" "\tEnd.X\t-> Endpoint with decapsulation and Layer-3 cross-connect.\n" "\t\tParameters: '<iface> <ip6_next_hop>'\n" "\tEnd.DX2\t-> Endpoint with decapsulation and Layer-2 cross-connect.\n" @@ -491,9 +560,22 @@ show_sr_localsid_command_fn (vlib_main_t * vm, unformat_input_t * input, switch (ls->behavior) { case SR_BEHAVIOR_END: - vlib_cli_output (vm, "\tAddress: \t%U/%u\n\tBehavior: \tEnd", + vlib_cli_output (vm, "\tAddress: \t%U\n\tBehavior: \tEnd", + format_ip6_address, &ls->localsid); + break; + case SR_BEHAVIOR_END_UN: + vlib_cli_output (vm, + "\tAddress: \t%U\n\tBehavior: \tEnd (flex) [uSID:\t%U/%d, length: %d]", + format_ip6_address, &ls->localsid, + format_ip6_address, &ls->usid_block, + ls->usid_index * 8, ls->usid_len * 8); + break; + case SR_BEHAVIOR_END_UN_PERF: + vlib_cli_output (vm, + "\tAddress: \t%U\n\tBehavior: \tEnd [uSID:\t%U/%d, length: %d]", format_ip6_address, &ls->localsid, - ls->localsid_prefix_len); + format_ip6_address, &ls->usid_block, + ls->usid_index * 8, ls->usid_len * 8); break; case SR_BEHAVIOR_X: vlib_cli_output (vm, @@ -697,6 +779,12 @@ format_sr_localsid_trace (u8 * s, va_list * args) case SR_BEHAVIOR_END: s = format (s, "\tBehavior: End\n"); break; + case SR_BEHAVIOR_END_UN: + s = format (s, "\tBehavior: End.uN (flex)\n"); + break; + case SR_BEHAVIOR_END_UN_PERF: + s = format (s, "\tBehavior: End.uN\n"); + break; case SR_BEHAVIOR_DX6: s = format (s, "\tBehavior: Decapsulation with IPv6 L3 xconnect\n"); break; @@ -837,6 +925,147 @@ end_srh_processing (vlib_node_runtime_t * node, } } +/** + * @brief Function doing End uN processing. + */ +static_always_inline void +end_un_srh_processing (vlib_node_runtime_t * node, + vlib_buffer_t * b0, + ip6_header_t * ip0, + ip6_sr_header_t * sr0, + ip6_sr_localsid_t * ls0, + u32 * next0, u8 psp, ip6_ext_header_t * prev0) +{ + ip6_address_t *new_dst0; + bool next_usid = false; + u8 next_usid_index; + u8 usid_len; + u8 index; + + usid_len = ls0->usid_len; + next_usid_index = ls0->usid_next_index; + + /* uSID */ + for (index = 0; index < usid_len; index++) + { + if (ip0->dst_address.as_u8[next_usid_index + index] != 0) + { + next_usid = true; + break; + } + } + + if (PREDICT_TRUE (next_usid)) + { + u8 offset; + + index = ls0->usid_index; + + /* advance next usid */ + for (offset = 0; offset < ls0->usid_next_len; offset++) + { + ip0->dst_address.as_u8[index + offset] = + ip0->dst_address.as_u8[next_usid_index + offset]; + } + + for (index = 16 - usid_len; index < 16; index++) + { + ip0->dst_address.as_u8[index] = 0; + } + + return; + } + + if (PREDICT_TRUE (sr0 && sr0->type == ROUTING_HEADER_TYPE_SR)) + { + if (sr0->segments_left == 1 && psp) + { + u32 new_l0, sr_len; + u64 *copy_dst0, *copy_src0; + u32 copy_len_u64s0 = 0; + + ip0->dst_address.as_u64[0] = sr0->segments->as_u64[0]; + ip0->dst_address.as_u64[1] = sr0->segments->as_u64[1]; + + /* Remove the SRH taking care of the rest of IPv6 ext header */ + if (prev0) + prev0->next_hdr = sr0->protocol; + else + ip0->protocol = sr0->protocol; + + sr_len = ip6_ext_header_len (sr0); + vlib_buffer_advance (b0, sr_len); + new_l0 = clib_net_to_host_u16 (ip0->payload_length) - sr_len; + ip0->payload_length = clib_host_to_net_u16 (new_l0); + copy_src0 = (u64 *) ip0; + copy_dst0 = copy_src0 + (sr0->length + 1); + /* number of 8 octet units to copy + * By default in absence of extension headers it is equal to length of ip6 header + * With extension headers it number of 8 octet units of ext headers preceding + * SR header + */ + copy_len_u64s0 = + (((u8 *) sr0 - (u8 *) ip0) - sizeof (ip6_header_t)) >> 3; + copy_dst0[4 + copy_len_u64s0] = copy_src0[4 + copy_len_u64s0]; + copy_dst0[3 + copy_len_u64s0] = copy_src0[3 + copy_len_u64s0]; + copy_dst0[2 + copy_len_u64s0] = copy_src0[2 + copy_len_u64s0]; + copy_dst0[1 + copy_len_u64s0] = copy_src0[1 + copy_len_u64s0]; + copy_dst0[0 + copy_len_u64s0] = copy_src0[0 + copy_len_u64s0]; + + int i; + for (i = copy_len_u64s0 - 1; i >= 0; i--) + { + copy_dst0[i] = copy_src0[i]; + } + } + else if (PREDICT_TRUE (sr0->segments_left > 0)) + { + sr0->segments_left -= 1; + new_dst0 = (ip6_address_t *) (sr0->segments); + new_dst0 += sr0->segments_left; + ip0->dst_address.as_u64[0] = new_dst0->as_u64[0]; + ip0->dst_address.as_u64[1] = new_dst0->as_u64[1]; + } + else + { + *next0 = SR_LOCALSID_NEXT_ERROR; + b0->error = node->errors[SR_LOCALSID_ERROR_NO_MORE_SEGMENTS]; + } + } + else + { + /* Error. Routing header of type != SR */ + *next0 = SR_LOCALSID_NEXT_ERROR; + b0->error = node->errors[SR_LOCALSID_ERROR_NO_SRH]; + } +} + +static_always_inline void +end_un_processing (ip6_header_t * ip0, ip6_sr_localsid_t * ls0) +{ + u8 next_usid_index; + u8 index; + u8 offset; + + /* uSID */ + index = ls0->usid_index; + next_usid_index = ls0->usid_next_index; + + /* advance next usid */ + for (offset = 0; offset < ls0->usid_next_len; offset++) + { + ip0->dst_address.as_u8[index + offset] = + ip0->dst_address.as_u8[next_usid_index + offset]; + } + + for (index = 16 - ls0->usid_len; index < 16; index++) + { + ip0->dst_address.as_u8[index] = 0; + } + + return; +} + /* * @brief Function doing SRH processing for D* variants */ @@ -1537,6 +1766,538 @@ VLIB_REGISTER_NODE (sr_localsid_node) = { }; /* *INDENT-ON* */ +/** + * @brief SR LocalSID uN graph node. Supports all default SR Endpoint without decaps + */ +static uword +sr_localsid_un_fn (vlib_main_t * vm, vlib_node_runtime_t * node, + vlib_frame_t * from_frame) +{ + u32 n_left_from, next_index, *from, *to_next; + ip6_sr_main_t *sm = &sr_main; + from = vlib_frame_vector_args (from_frame); + n_left_from = from_frame->n_vectors; + next_index = node->cached_next_index; + u32 thread_index = vm->thread_index; + + while (n_left_from > 0) + { + u32 n_left_to_next; + vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); + + /* Quad - Loop */ + while (n_left_from >= 8 && n_left_to_next >= 4) + { + u32 bi0, bi1, bi2, bi3; + vlib_buffer_t *b0, *b1, *b2, *b3; + ip6_header_t *ip0, *ip1, *ip2, *ip3; + ip6_sr_header_t *sr0, *sr1, *sr2, *sr3; + ip6_ext_header_t *prev0, *prev1, *prev2, *prev3; + u32 next0, next1, next2, next3; + next0 = next1 = next2 = next3 = SR_LOCALSID_NEXT_IP6_LOOKUP; + ip6_sr_localsid_t *ls0, *ls1, *ls2, *ls3; + + /* Prefetch next iteration. */ + { + vlib_buffer_t *p4, *p5, *p6, *p7; + + p4 = vlib_get_buffer (vm, from[4]); + p5 = vlib_get_buffer (vm, from[5]); + p6 = vlib_get_buffer (vm, from[6]); + p7 = vlib_get_buffer (vm, from[7]); + + /* Prefetch the buffer header and packet for the N+2 loop iteration */ + vlib_prefetch_buffer_header (p4, LOAD); + vlib_prefetch_buffer_header (p5, LOAD); + vlib_prefetch_buffer_header (p6, LOAD); + vlib_prefetch_buffer_header (p7, LOAD); + + CLIB_PREFETCH (p4->data, CLIB_CACHE_LINE_BYTES, STORE); + CLIB_PREFETCH (p5->data, CLIB_CACHE_LINE_BYTES, STORE); + CLIB_PREFETCH (p6->data, CLIB_CACHE_LINE_BYTES, STORE); + CLIB_PREFETCH (p7->data, CLIB_CACHE_LINE_BYTES, STORE); + } + + to_next[0] = bi0 = from[0]; + to_next[1] = bi1 = from[1]; + to_next[2] = bi2 = from[2]; + to_next[3] = bi3 = from[3]; + from += 4; + to_next += 4; + n_left_from -= 4; + n_left_to_next -= 4; + + b0 = vlib_get_buffer (vm, bi0); + b1 = vlib_get_buffer (vm, bi1); + b2 = vlib_get_buffer (vm, bi2); + b3 = vlib_get_buffer (vm, bi3); + + ip0 = vlib_buffer_get_current (b0); + ip1 = vlib_buffer_get_current (b1); + ip2 = vlib_buffer_get_current (b2); + ip3 = vlib_buffer_get_current (b3); + + sr0 = + ip6_ext_header_find (vm, b0, ip0, IP_PROTOCOL_IPV6_ROUTE, &prev0); + sr1 = + ip6_ext_header_find (vm, b1, ip1, IP_PROTOCOL_IPV6_ROUTE, &prev1); + sr2 = + ip6_ext_header_find (vm, b2, ip2, IP_PROTOCOL_IPV6_ROUTE, &prev2); + sr3 = + ip6_ext_header_find (vm, b3, ip3, IP_PROTOCOL_IPV6_ROUTE, &prev3); + + ls0 = + pool_elt_at_index (sm->localsids, + vnet_buffer (b0)->ip.adj_index[VLIB_TX]); + ls1 = + pool_elt_at_index (sm->localsids, + vnet_buffer (b1)->ip.adj_index[VLIB_TX]); + ls2 = + pool_elt_at_index (sm->localsids, + vnet_buffer (b2)->ip.adj_index[VLIB_TX]); + ls3 = + pool_elt_at_index (sm->localsids, + vnet_buffer (b3)->ip.adj_index[VLIB_TX]); + + end_un_srh_processing (node, b0, ip0, sr0, ls0, &next0, + ls0->end_psp, prev0); + end_un_srh_processing (node, b1, ip1, sr1, ls1, &next1, + ls1->end_psp, prev1); + end_un_srh_processing (node, b2, ip2, sr2, ls2, &next2, + ls2->end_psp, prev2); + end_un_srh_processing (node, b3, ip3, sr3, ls3, &next3, + ls3->end_psp, prev3); + + if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED)) + { + sr_localsid_trace_t *tr = + vlib_add_trace (vm, node, b0, sizeof (*tr)); + tr->num_segments = 0; + clib_memcpy (tr->localsid.as_u8, ls0->localsid.as_u8, + sizeof (tr->localsid.as_u8)); + tr->behavior = ls0->behavior; + if (ip0 == vlib_buffer_get_current (b0)) + { + if (ip0->protocol == IP_PROTOCOL_IPV6_ROUTE + && sr0->type == ROUTING_HEADER_TYPE_SR) + { + clib_memcpy (tr->sr, sr0->segments, sr0->length * 8); + tr->num_segments = + sr0->length * 8 / sizeof (ip6_address_t); + tr->segments_left = sr0->segments_left; + } + } + else + tr->num_segments = 0xFF; + } + + if (PREDICT_FALSE (b1->flags & VLIB_BUFFER_IS_TRACED)) + { + sr_localsid_trace_t *tr = + vlib_add_trace (vm, node, b1, sizeof (*tr)); + tr->num_segments = 0; + clib_memcpy (tr->localsid.as_u8, ls1->localsid.as_u8, + sizeof (tr->localsid.as_u8)); + tr->behavior = ls1->behavior; + if (ip1 == vlib_buffer_get_current (b1)) + { + if (ip1->protocol == IP_PROTOCOL_IPV6_ROUTE + && sr1->type == ROUTING_HEADER_TYPE_SR) + { + clib_memcpy (tr->sr, sr1->segments, sr1->length * 8); + tr->num_segments = + sr1->length * 8 / sizeof (ip6_address_t); + tr->segments_left = sr1->segments_left; + } + } + else + tr->num_segments = 0xFF; + } + + if (PREDICT_FALSE (b2->flags & VLIB_BUFFER_IS_TRACED)) + { + sr_localsid_trace_t *tr = + vlib_add_trace (vm, node, b2, sizeof (*tr)); + tr->num_segments = 0; + clib_memcpy (tr->localsid.as_u8, ls2->localsid.as_u8, + sizeof (tr->localsid.as_u8)); + tr->behavior = ls2->behavior; + if (ip2 == vlib_buffer_get_current (b2)) + { + if (ip2->protocol == IP_PROTOCOL_IPV6_ROUTE + && sr2->type == ROUTING_HEADER_TYPE_SR) + { + clib_memcpy (tr->sr, sr2->segments, sr2->length * 8); + tr->num_segments = + sr2->length * 8 / sizeof (ip6_address_t); + tr->segments_left = sr2->segments_left; + } + } + else + tr->num_segments = 0xFF; + } + + if (PREDICT_FALSE (b3->flags & VLIB_BUFFER_IS_TRACED)) + { + sr_localsid_trace_t *tr = + vlib_add_trace (vm, node, b3, sizeof (*tr)); + tr->num_segments = 0; + clib_memcpy (tr->localsid.as_u8, ls3->localsid.as_u8, + sizeof (tr->localsid.as_u8)); + tr->behavior = ls3->behavior; + if (ip3 == vlib_buffer_get_current (b3)) + { + if (ip3->protocol == IP_PROTOCOL_IPV6_ROUTE + && sr3->type == ROUTING_HEADER_TYPE_SR) + { + clib_memcpy (tr->sr, sr3->segments, sr3->length * 8); + tr->num_segments = + sr3->length * 8 / sizeof (ip6_address_t); + tr->segments_left = sr3->segments_left; + } + } + else + tr->num_segments = 0xFF; + } + + vlib_increment_combined_counter + (((next0 == + SR_LOCALSID_NEXT_ERROR) ? &(sm->sr_ls_invalid_counters) : + &(sm->sr_ls_valid_counters)), thread_index, ls0 - sm->localsids, + 1, vlib_buffer_length_in_chain (vm, b0)); + + vlib_increment_combined_counter + (((next1 == + SR_LOCALSID_NEXT_ERROR) ? &(sm->sr_ls_invalid_counters) : + &(sm->sr_ls_valid_counters)), thread_index, ls1 - sm->localsids, + 1, vlib_buffer_length_in_chain (vm, b1)); + + vlib_increment_combined_counter + (((next2 == + SR_LOCALSID_NEXT_ERROR) ? &(sm->sr_ls_invalid_counters) : + &(sm->sr_ls_valid_counters)), thread_index, ls2 - sm->localsids, + 1, vlib_buffer_length_in_chain (vm, b2)); + + vlib_increment_combined_counter + (((next3 == + SR_LOCALSID_NEXT_ERROR) ? &(sm->sr_ls_invalid_counters) : + &(sm->sr_ls_valid_counters)), thread_index, ls3 - sm->localsids, + 1, vlib_buffer_length_in_chain (vm, b3)); + + vlib_validate_buffer_enqueue_x4 (vm, node, next_index, to_next, + n_left_to_next, bi0, bi1, bi2, bi3, + next0, next1, next2, next3); + } + + /* Single loop for potentially the last three packets */ + while (n_left_from > 0 && n_left_to_next > 0) + { + u32 bi0; + vlib_buffer_t *b0; + ip6_header_t *ip0 = 0; + ip6_ext_header_t *prev0; + ip6_sr_header_t *sr0; + u32 next0 = SR_LOCALSID_NEXT_IP6_LOOKUP; + ip6_sr_localsid_t *ls0; + + bi0 = from[0]; + to_next[0] = bi0; + from += 1; + to_next += 1; + n_left_from -= 1; + n_left_to_next -= 1; + + b0 = vlib_get_buffer (vm, bi0); + ip0 = vlib_buffer_get_current (b0); + sr0 = + ip6_ext_header_find (vm, b0, ip0, IP_PROTOCOL_IPV6_ROUTE, &prev0); + + /* Lookup the SR End behavior based on IP DA (adj) */ + ls0 = + pool_elt_at_index (sm->localsids, + vnet_buffer (b0)->ip.adj_index[VLIB_TX]); + + /* SRH processing */ + end_un_srh_processing (node, b0, ip0, sr0, ls0, &next0, + ls0->end_psp, prev0); + + if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED)) + { + sr_localsid_trace_t *tr = + vlib_add_trace (vm, node, b0, sizeof (*tr)); + tr->num_segments = 0; + clib_memcpy (tr->localsid.as_u8, ls0->localsid.as_u8, + sizeof (tr->localsid.as_u8)); + tr->behavior = ls0->behavior; + if (ip0 == vlib_buffer_get_current (b0)) + { + if (ip0->protocol == IP_PROTOCOL_IPV6_ROUTE + && sr0->type == ROUTING_HEADER_TYPE_SR) + { + clib_memcpy (tr->sr, sr0->segments, sr0->length * 8); + tr->num_segments = + sr0->length * 8 / sizeof (ip6_address_t); + tr->segments_left = sr0->segments_left; + } + } + else + tr->num_segments = 0xFF; + } + + vlib_increment_combined_counter + (((next0 == + SR_LOCALSID_NEXT_ERROR) ? &(sm->sr_ls_invalid_counters) : + &(sm->sr_ls_valid_counters)), thread_index, ls0 - sm->localsids, + 1, vlib_buffer_length_in_chain (vm, b0)); + + vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next, + n_left_to_next, bi0, next0); + } + vlib_put_next_frame (vm, node, next_index, n_left_to_next); + } + return from_frame->n_vectors; +} + +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (sr_localsid_un_node) = { + .function = sr_localsid_un_fn, + .name = "sr-localsid-un", + .vector_size = sizeof (u32), + .format_trace = format_sr_localsid_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + .n_errors = SR_LOCALSID_N_ERROR, + .error_strings = sr_localsid_error_strings, + .n_next_nodes = SR_LOCALSID_N_NEXT, + .next_nodes = { +#define _(s,n) [SR_LOCALSID_NEXT_##s] = n, + foreach_sr_localsid_next +#undef _ + }, +}; +/* *INDENT-ON* */ + +static uword +sr_localsid_un_perf_fn (vlib_main_t * vm, vlib_node_runtime_t * node, + vlib_frame_t * from_frame) +{ + u32 n_left_from, next_index, *from, *to_next; + ip6_sr_main_t *sm = &sr_main; + from = vlib_frame_vector_args (from_frame); + n_left_from = from_frame->n_vectors; + next_index = node->cached_next_index; + u32 thread_index = vm->thread_index; + + while (n_left_from > 0) + { + u32 n_left_to_next; + vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); + + /* Quad - Loop */ + while (n_left_from >= 8 && n_left_to_next >= 4) + { + u32 bi0, bi1, bi2, bi3; + vlib_buffer_t *b0, *b1, *b2, *b3; + ip6_header_t *ip0, *ip1, *ip2, *ip3; + u32 next0, next1, next2, next3; + next0 = next1 = next2 = next3 = SR_LOCALSID_NEXT_IP6_LOOKUP; + ip6_sr_localsid_t *ls0, *ls1, *ls2, *ls3; + + /* Prefetch next iteration. */ + { + vlib_buffer_t *p4, *p5, *p6, *p7; + + p4 = vlib_get_buffer (vm, from[4]); + p5 = vlib_get_buffer (vm, from[5]); + p6 = vlib_get_buffer (vm, from[6]); + p7 = vlib_get_buffer (vm, from[7]); + + /* Prefetch the buffer header and packet for the N+2 loop iteration */ + vlib_prefetch_buffer_header (p4, LOAD); + vlib_prefetch_buffer_header (p5, LOAD); + vlib_prefetch_buffer_header (p6, LOAD); + vlib_prefetch_buffer_header (p7, LOAD); + + CLIB_PREFETCH (p4->data, CLIB_CACHE_LINE_BYTES, STORE); + CLIB_PREFETCH (p5->data, CLIB_CACHE_LINE_BYTES, STORE); + CLIB_PREFETCH (p6->data, CLIB_CACHE_LINE_BYTES, STORE); + CLIB_PREFETCH (p7->data, CLIB_CACHE_LINE_BYTES, STORE); + } + + to_next[0] = bi0 = from[0]; + to_next[1] = bi1 = from[1]; + to_next[2] = bi2 = from[2]; + to_next[3] = bi3 = from[3]; + from += 4; + to_next += 4; + n_left_from -= 4; + n_left_to_next -= 4; + + b0 = vlib_get_buffer (vm, bi0); + b1 = vlib_get_buffer (vm, bi1); + b2 = vlib_get_buffer (vm, bi2); + b3 = vlib_get_buffer (vm, bi3); + + ip0 = vlib_buffer_get_current (b0); + ip1 = vlib_buffer_get_current (b1); + ip2 = vlib_buffer_get_current (b2); + ip3 = vlib_buffer_get_current (b3); + + ls0 = + pool_elt_at_index (sm->localsids, + vnet_buffer (b0)->ip.adj_index[VLIB_TX]); + ls1 = + pool_elt_at_index (sm->localsids, + vnet_buffer (b1)->ip.adj_index[VLIB_TX]); + ls2 = + pool_elt_at_index (sm->localsids, + vnet_buffer (b2)->ip.adj_index[VLIB_TX]); + ls3 = + pool_elt_at_index (sm->localsids, + vnet_buffer (b3)->ip.adj_index[VLIB_TX]); + + end_un_processing (ip0, ls0); + end_un_processing (ip1, ls1); + end_un_processing (ip2, ls2); + end_un_processing (ip3, ls3); + + if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED)) + { + sr_localsid_trace_t *tr = + vlib_add_trace (vm, node, b0, sizeof (*tr)); + tr->num_segments = 0; + clib_memcpy (tr->localsid.as_u8, ls0->localsid.as_u8, + sizeof (tr->localsid.as_u8)); + tr->behavior = ls0->behavior; + } + + if (PREDICT_FALSE (b1->flags & VLIB_BUFFER_IS_TRACED)) + { + sr_localsid_trace_t *tr = + vlib_add_trace (vm, node, b1, sizeof (*tr)); + tr->num_segments = 0; + clib_memcpy (tr->localsid.as_u8, ls1->localsid.as_u8, + sizeof (tr->localsid.as_u8)); + tr->behavior = ls1->behavior; + } + + if (PREDICT_FALSE (b2->flags & VLIB_BUFFER_IS_TRACED)) + { + sr_localsid_trace_t *tr = + vlib_add_trace (vm, node, b2, sizeof (*tr)); + tr->num_segments = 0; + clib_memcpy (tr->localsid.as_u8, ls2->localsid.as_u8, + sizeof (tr->localsid.as_u8)); + tr->behavior = ls2->behavior; + } + + if (PREDICT_FALSE (b3->flags & VLIB_BUFFER_IS_TRACED)) + { + sr_localsid_trace_t *tr = + vlib_add_trace (vm, node, b3, sizeof (*tr)); + tr->num_segments = 0; + clib_memcpy (tr->localsid.as_u8, ls3->localsid.as_u8, + sizeof (tr->localsid.as_u8)); + tr->behavior = ls3->behavior; + } + + vlib_increment_combined_counter + (((next0 == + SR_LOCALSID_NEXT_ERROR) ? &(sm->sr_ls_invalid_counters) : + &(sm->sr_ls_valid_counters)), thread_index, ls0 - sm->localsids, + 1, vlib_buffer_length_in_chain (vm, b0)); + + vlib_increment_combined_counter + (((next1 == + SR_LOCALSID_NEXT_ERROR) ? &(sm->sr_ls_invalid_counters) : + &(sm->sr_ls_valid_counters)), thread_index, ls1 - sm->localsids, + 1, vlib_buffer_length_in_chain (vm, b1)); + + vlib_increment_combined_counter + (((next2 == + SR_LOCALSID_NEXT_ERROR) ? &(sm->sr_ls_invalid_counters) : + &(sm->sr_ls_valid_counters)), thread_index, ls2 - sm->localsids, + 1, vlib_buffer_length_in_chain (vm, b2)); + + vlib_increment_combined_counter + (((next3 == + SR_LOCALSID_NEXT_ERROR) ? &(sm->sr_ls_invalid_counters) : + &(sm->sr_ls_valid_counters)), thread_index, ls3 - sm->localsids, + 1, vlib_buffer_length_in_chain (vm, b3)); + + vlib_validate_buffer_enqueue_x4 (vm, node, next_index, to_next, + n_left_to_next, bi0, bi1, bi2, bi3, + next0, next1, next2, next3); + } + + /* Single loop for potentially the last three packets */ + while (n_left_from > 0 && n_left_to_next > 0) + { + u32 bi0; + vlib_buffer_t *b0; + ip6_header_t *ip0 = 0; + u32 next0 = SR_LOCALSID_NEXT_IP6_LOOKUP; + ip6_sr_localsid_t *ls0; + + bi0 = from[0]; + to_next[0] = bi0; + from += 1; + to_next += 1; + n_left_from -= 1; + n_left_to_next -= 1; + + b0 = vlib_get_buffer (vm, bi0); + ip0 = vlib_buffer_get_current (b0); + + /* Lookup the SR End behavior based on IP DA (adj) */ + ls0 = + pool_elt_at_index (sm->localsids, + vnet_buffer (b0)->ip.adj_index[VLIB_TX]); + + /* SRH processing */ + end_un_processing (ip0, ls0); + + if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED)) + { + sr_localsid_trace_t *tr = + vlib_add_trace (vm, node, b0, sizeof (*tr)); + tr->num_segments = 0; + clib_memcpy (tr->localsid.as_u8, ls0->localsid.as_u8, + sizeof (tr->localsid.as_u8)); + tr->behavior = ls0->behavior; + } + + vlib_increment_combined_counter + (((next0 == + SR_LOCALSID_NEXT_ERROR) ? &(sm->sr_ls_invalid_counters) : + &(sm->sr_ls_valid_counters)), thread_index, ls0 - sm->localsids, + 1, vlib_buffer_length_in_chain (vm, b0)); + + vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next, + n_left_to_next, bi0, next0); + } + vlib_put_next_frame (vm, node, next_index, n_left_to_next); + } + return from_frame->n_vectors; +} + +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (sr_localsid_un_perf_node) = { + .function = sr_localsid_un_perf_fn, + .name = "sr-localsid-un-perf", + .vector_size = sizeof (u32), + .format_trace = format_sr_localsid_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + .n_errors = SR_LOCALSID_N_ERROR, + .error_strings = sr_localsid_error_strings, + .n_next_nodes = SR_LOCALSID_N_NEXT, + .next_nodes = { +#define _(s,n) [SR_LOCALSID_NEXT_##s] = n, + foreach_sr_localsid_next +#undef _ + }, +}; +/* *INDENT-ON* */ + static u8 * format_sr_dpo (u8 * s, va_list * args) { @@ -1570,6 +2331,23 @@ const static char *const *const sr_loc_d_nodes[DPO_PROTO_NUM] = { [DPO_PROTO_IP6] = sr_loc_d_ip6_nodes, }; +const static char *const sr_loc_un_ip6_nodes[] = { + "sr-localsid-un", + NULL, +}; + +const static char *const *const sr_loc_un_nodes[DPO_PROTO_NUM] = { + [DPO_PROTO_IP6] = sr_loc_un_ip6_nodes, +}; + +const static char *const sr_loc_un_perf_ip6_nodes[] = { + "sr-localsid-un-perf", + NULL, +}; + +const static char *const *const sr_loc_un_perf_nodes[DPO_PROTO_NUM] = { + [DPO_PROTO_IP6] = sr_loc_un_perf_ip6_nodes, +}; /*************************** SR LocalSID plugins ******************************/ /** @@ -1688,12 +2466,17 @@ sr_localsids_init (vlib_main_t * vm) /* Init memory for function keys */ ip6_sr_main_t *sm = &sr_main; mhash_init (&sm->sr_localsids_index_hash, sizeof (uword), - sizeof (ip6_address_t)); + sizeof (sr_localsid_key_t)); /* Init SR behaviors DPO type */ sr_localsid_dpo_type = dpo_register_new_type (&sr_loc_vft, sr_loc_nodes); /* Init SR behaviors DPO type */ sr_localsid_d_dpo_type = dpo_register_new_type (&sr_loc_vft, sr_loc_d_nodes); + /* Init SR bhaviors DPO type */ + sr_localsid_un_dpo_type = + dpo_register_new_type (&sr_loc_vft, sr_loc_un_nodes); + sr_localsid_un_perf_dpo_type = + dpo_register_new_type (&sr_loc_vft, sr_loc_un_perf_nodes); /* Init memory for localsid plugins */ sm->plugin_functions_by_key = hash_create_string (0, sizeof (uword)); return 0; |