+static clib_error_t *
+ipsec_config (vlib_main_t *vm, unformat_input_t *input)
+{
+ ipsec_main_t *im = &ipsec_main;
+ unformat_input_t sub_input;
+
+ u32 ipsec4_out_spd_hash_num_buckets;
+ u32 ipsec4_in_spd_hash_num_buckets;
+ u32 ipsec_spd_fp_num_buckets;
+ bool fp_spd_ip4_enabled = false;
+ bool fp_spd_ip6_enabled = false;
+
+ while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (input, "ipv6-outbound-spd-fast-path on"))
+ {
+ im->fp_spd_ipv6_out_is_enabled = 1;
+ fp_spd_ip6_enabled = true;
+ }
+ else if (unformat (input, "ipv6-outbound-spd-fast-path off"))
+ im->fp_spd_ipv6_out_is_enabled = 0;
+ else if (unformat (input, "ipv4-outbound-spd-fast-path on"))
+ {
+ im->fp_spd_ipv4_out_is_enabled = 1;
+ im->output_flow_cache_flag = 0;
+ fp_spd_ip4_enabled = true;
+ }
+ else if (unformat (input, "ipv4-outbound-spd-fast-path off"))
+ im->fp_spd_ipv4_out_is_enabled = 0;
+ else if (unformat (input, "ipv6-inbound-spd-fast-path on"))
+ {
+ im->fp_spd_ipv6_in_is_enabled = 1;
+ fp_spd_ip6_enabled = true;
+ }
+ else if (unformat (input, "ipv6-inbound-spd-fast-path off"))
+ im->fp_spd_ipv6_in_is_enabled = 0;
+ else if (unformat (input, "ipv4-inbound-spd-fast-path on"))
+ {
+ im->fp_spd_ipv4_in_is_enabled = 1;
+ im->input_flow_cache_flag = 0;
+ fp_spd_ip4_enabled = true;
+ }
+ else if (unformat (input, "ipv4-inbound-spd-fast-path off"))
+ im->fp_spd_ipv4_in_is_enabled = 0;
+ else if (unformat (input, "spd-fast-path-num-buckets %d",
+ &ipsec_spd_fp_num_buckets))
+ {
+ /* Number of bihash buckets is power of 2 >= input */
+ im->fp_lookup_hash_buckets = 1ULL
+ << max_log2 (ipsec_spd_fp_num_buckets);
+ }
+ else if (unformat (input, "ipv4-outbound-spd-flow-cache on"))
+ im->output_flow_cache_flag = im->fp_spd_ipv4_out_is_enabled ? 0 : 1;
+ else if (unformat (input, "ipv4-outbound-spd-flow-cache off"))
+ im->output_flow_cache_flag = 0;
+ else if (unformat (input, "ipv4-outbound-spd-hash-buckets %d",
+ &ipsec4_out_spd_hash_num_buckets))
+ {
+ /* Size of hash is power of 2 >= number of buckets */
+ im->ipsec4_out_spd_hash_num_buckets =
+ 1ULL << max_log2 (ipsec4_out_spd_hash_num_buckets);
+ }
+ else if (unformat (input, "ipv4-inbound-spd-flow-cache on"))
+ im->input_flow_cache_flag = im->fp_spd_ipv4_in_is_enabled ? 0 : 1;
+ else if (unformat (input, "ipv4-inbound-spd-flow-cache off"))
+ im->input_flow_cache_flag = 0;
+ else if (unformat (input, "ipv4-inbound-spd-hash-buckets %d",
+ &ipsec4_in_spd_hash_num_buckets))
+ {
+ im->ipsec4_in_spd_hash_num_buckets =
+ 1ULL << max_log2 (ipsec4_in_spd_hash_num_buckets);
+ }
+ else if (unformat (input, "ip4 %U", unformat_vlib_cli_sub_input,
+ &sub_input))
+ {
+ uword table_size = ~0;
+ u32 n_buckets = ~0;
+
+ while (unformat_check_input (&sub_input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (&sub_input, "num-buckets %u", &n_buckets))
+ ;
+ else
+ return clib_error_return (0, "unknown input `%U'",
+ format_unformat_error, &sub_input);
+ }
+
+ ipsec_tun_table_init (AF_IP4, table_size, n_buckets);
+ }
+ else if (unformat (input, "ip6 %U", unformat_vlib_cli_sub_input,
+ &sub_input))
+ {
+ uword table_size = ~0;
+ u32 n_buckets = ~0;
+
+ while (unformat_check_input (&sub_input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (&sub_input, "num-buckets %u", &n_buckets))
+ ;
+ else
+ return clib_error_return (0, "unknown input `%U'",
+ format_unformat_error, &sub_input);
+ }
+
+ ipsec_tun_table_init (AF_IP6, table_size, n_buckets);
+ }
+ else
+ return clib_error_return (0, "unknown input `%U'",
+ format_unformat_error, input);
+ }
+ if (im->output_flow_cache_flag)
+ {
+ vec_add2 (im->ipsec4_out_spd_hash_tbl, im->ipsec4_out_spd_hash_tbl,
+ im->ipsec4_out_spd_hash_num_buckets);
+ }
+ if (im->input_flow_cache_flag)
+ {
+ vec_add2 (im->ipsec4_in_spd_hash_tbl, im->ipsec4_in_spd_hash_tbl,
+ im->ipsec4_in_spd_hash_num_buckets);
+ }
+
+ if (fp_spd_ip4_enabled)
+ pool_alloc_aligned (im->fp_ip4_lookup_hashes_pool,
+ IPSEC_FP_IP4_HASHES_POOL_SIZE, CLIB_CACHE_LINE_BYTES);
+
+ if (fp_spd_ip6_enabled)
+ pool_alloc_aligned (im->fp_ip6_lookup_hashes_pool,
+ IPSEC_FP_IP6_HASHES_POOL_SIZE, CLIB_CACHE_LINE_BYTES);
+
+ return 0;
+}
+
+VLIB_CONFIG_FUNCTION (ipsec_config, "ipsec");
+