X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fplugins%2Facl%2Ffa_node.h;h=5c55cb995a17430ca5601338487bf23efc4b7ecc;hb=4bc1796b346efd10f3fb19b176ff089179263a24;hp=76a40a384866d4c13abd34852edaa3fde5da188f;hpb=d2a59bed1e6b368a46608fd8ff631b770af8805f;p=vpp.git diff --git a/src/plugins/acl/fa_node.h b/src/plugins/acl/fa_node.h index 76a40a38486..5c55cb995a1 100644 --- a/src/plugins/acl/fa_node.h +++ b/src/plugins/acl/fa_node.h @@ -2,7 +2,9 @@ #define _FA_NODE_H_ #include -#include "bihash_40_8.h" +#include + +// #define FA_NODE_VERBOSE_DEBUG 3 #define TCP_FLAG_FIN 0x01 #define TCP_FLAG_SYN 0x02 @@ -16,16 +18,20 @@ #define TCP_FLAGS_ACKSYN (TCP_FLAG_SYN + TCP_FLAG_ACK) #define ACL_FA_CONN_TABLE_DEFAULT_HASH_NUM_BUCKETS (64 * 1024) -#define ACL_FA_CONN_TABLE_DEFAULT_HASH_MEMORY_SIZE (1<<30) -#define ACL_FA_CONN_TABLE_DEFAULT_MAX_ENTRIES 1000000 +#define ACL_FA_CONN_TABLE_DEFAULT_HASH_MEMORY_SIZE (1ULL<<30) +#define ACL_FA_CONN_TABLE_DEFAULT_MAX_ENTRIES 500000 typedef union { u64 as_u64; struct { - u8 tcp_flags_valid; + u32 lc_index; + u16 mask_type_index_lsb; u8 tcp_flags; - u8 is_input; - u8 l4_valid; + u8 tcp_flags_valid:1; + u8 l4_valid:1; + u8 is_nonfirst_fragment:1; + u8 is_ip6:1; + u8 flags_reserved:4; }; } fa_packet_info_t; @@ -33,8 +39,16 @@ typedef union { u64 as_u64; struct { u16 port[2]; - u16 proto; - u16 rsvd; + union { + struct { + u8 proto; + u8 is_input: 1; + u8 is_slowpath: 1; + u8 reserved0: 6; + u16 lsb_of_sw_if_index; + }; + u32 non_port_l4_data; + }; }; } fa_session_l4_key_t; @@ -48,6 +62,10 @@ typedef union { clib_bihash_kv_40_8_t kv; } fa_5tuple_t; +typedef struct { + u8 opaque[sizeof(fa_5tuple_t)]; +} fa_5tuple_opaque_t; + typedef struct { fa_5tuple_t info; /* (5+1)*8 = 48 bytes */ @@ -57,13 +75,33 @@ typedef struct { u8 as_u8[2]; u16 as_u16; } tcp_flags_seen; ; /* +2 bytes = 62 */ - u8 link_list_id; /* +1 bytes = 63 */ - u8 reserved1; /* +1 bytes = 64 */ - u32 link_prev_idx; - u32 link_next_idx; - u64 reserved2[7]; + u16 thread_index; /* +2 bytes = 64 */ + u64 link_enqueue_time; /* 8 byte = 8 */ + u32 link_prev_idx; /* +4 bytes = 12 */ + u32 link_next_idx; /* +4 bytes = 16 */ + u8 link_list_id; /* +1 bytes = 17 */ + u8 deleted; /* +1 bytes = 18 */ + u8 reserved1[6]; /* +6 bytes = 24 */ + u64 reserved2[5]; /* +5*8 bytes = 64 */ } fa_session_t; +#define FA_POLICY_EPOCH_MASK 0x7fff +/* input policy epochs have the MSB set */ +#define FA_POLICY_EPOCH_IS_INPUT 0x8000 + + +/* This structure is used to fill in the u64 value + in the per-sw-if-index hash table */ +typedef struct { + union { + u64 as_u64; + struct { + u32 session_index; + u16 thread_index; + u16 intf_policy_epoch; + }; + }; +} fa_full_session_id_t; /* * A few compile-time constraints on the size and the layout of the union, to ensure @@ -76,10 +114,69 @@ CT_ASSERT_EQUAL(fa_l4_key_t_is_8, sizeof(fa_session_l4_key_t), sizeof(u64)); CT_ASSERT_EQUAL(fa_packet_info_t_is_8, sizeof(fa_packet_info_t), sizeof(u64)); CT_ASSERT_EQUAL(fa_l3_kv_size_is_48, sizeof(fa_5tuple_t), sizeof(clib_bihash_kv_40_8_t)); -/* Let's try to fit within the cacheline */ -CT_ASSERT_EQUAL(fa_session_t_size_is_64, sizeof(fa_session_t), 128); +/* Let's try to fit within two cachelines */ +CT_ASSERT_EQUAL(fa_session_t_size_is_128, sizeof(fa_session_t), 128); + +/* Session ID MUST be the same as u64 */ +CT_ASSERT_EQUAL(fa_full_session_id_size_is_64, sizeof(fa_full_session_id_t), sizeof(u64)); #undef CT_ASSERT_EQUAL +#define FA_SESSION_BOGUS_INDEX ~0 + +typedef struct { + /* The pool of sessions managed by this worker */ + fa_session_t *fa_sessions_pool; + /* per-worker ACL_N_TIMEOUTS of conn lists */ + u32 *fa_conn_list_head; + u32 *fa_conn_list_tail; + /* expiry time set whenever an element is enqueued */ + u64 *fa_conn_list_head_expiry_time; + /* adds and deletes per-worker-per-interface */ + u64 *fa_session_dels_by_sw_if_index; + u64 *fa_session_adds_by_sw_if_index; + /* sessions deleted due to epoch change */ + u64 *fa_session_epoch_change_by_sw_if_index; + /* Vector of expired connections retrieved from lists */ + u32 *expired; + /* the earliest next expiry time */ + u64 next_expiry_time; + /* if not zero, look at all the elements until their enqueue timestamp is after below one */ + u64 requeue_until_time; + /* Current time between the checks */ + u64 current_time_wait_interval; + /* Counter of how many sessions we did delete */ + u64 cnt_deleted_sessions; + /* Counter of already deleted sessions being deleted - should not increment unless a bug */ + u64 cnt_already_deleted_sessions; + /* Number of times we requeued a session to a head of the list */ + u64 cnt_session_timer_restarted; + /* swipe up to this enqueue time, rather than following the timeouts */ + u64 swipe_end_time; + /* bitmap of sw_if_index serviced by this worker */ + uword *serviced_sw_if_index_bitmap; + /* bitmap of sw_if_indices to clear. set by main thread, cleared by worker */ + uword *pending_clear_sw_if_index_bitmap; + /* atomic, indicates that the swipe-deletion of connections is in progress */ + u32 clear_in_process; + /* Interrupt is pending from main thread */ + int interrupt_is_pending; + /* + * Interrupt node on the worker thread sets this if it knows there is + * more work to do, but it has to finish to avoid hogging the + * core for too long. + */ + int interrupt_is_needed; + /* + * Set to indicate that the interrupt node wants to get less interrupts + * because there is not enough work for the current rate. + */ + int interrupt_is_unwanted; + /* + * Set to copy of a "generation" counter in main thread so we can sync the interrupts. + */ + int interrupt_generation; +} acl_fa_per_worker_data_t; + typedef enum { ACL_FA_ERROR_DROP, @@ -95,5 +192,125 @@ enum void acl_fa_enable_disable(u32 sw_if_index, int is_input, int enable_disable); +void show_fa_sessions_hash(vlib_main_t * vm, u32 verbose); + +u8 *format_acl_plugin_5tuple (u8 * s, va_list * args); + +/* use like: elog_acl_maybe_trace_X1(am, "foobar: %d", "i4", int32_value); */ + +#define elog_acl_maybe_trace_X1(am, acl_elog_trace_format_label, acl_elog_trace_format_args, acl_elog_val1) \ +do { \ + if (am->trace_sessions) { \ + CLIB_UNUSED(struct { u8 available_space[18 - sizeof(acl_elog_val1)]; } *static_check); \ + u16 thread_index = os_get_thread_index (); \ + vlib_worker_thread_t * w = vlib_worker_threads + thread_index; \ + ELOG_TYPE_DECLARE (e) = \ + { \ + .format = "(%02d) " acl_elog_trace_format_label, \ + .format_args = "i2" acl_elog_trace_format_args, \ + }; \ + CLIB_PACKED(struct \ + { \ + u16 thread; \ + typeof(acl_elog_val1) val1; \ + }) *ed; \ + ed = ELOG_TRACK_DATA (&vlib_global_main.elog_main, e, w->elog_track); \ + ed->thread = thread_index; \ + ed->val1 = acl_elog_val1; \ + } \ +} while (0) + + +/* use like: elog_acl_maybe_trace_X2(am, "foobar: %d some u64: %lu", "i4i8", int32_value, int64_value); */ + +#define elog_acl_maybe_trace_X2(am, acl_elog_trace_format_label, acl_elog_trace_format_args, \ + acl_elog_val1, acl_elog_val2) \ +do { \ + if (am->trace_sessions) { \ + CLIB_UNUSED(struct { u8 available_space[18 - sizeof(acl_elog_val1) - sizeof(acl_elog_val2)]; } *static_check); \ + u16 thread_index = os_get_thread_index (); \ + vlib_worker_thread_t * w = vlib_worker_threads + thread_index; \ + ELOG_TYPE_DECLARE (e) = \ + { \ + .format = "(%02d) " acl_elog_trace_format_label, \ + .format_args = "i2" acl_elog_trace_format_args, \ + }; \ + CLIB_PACKED(struct \ + { \ + u16 thread; \ + typeof(acl_elog_val1) val1; \ + typeof(acl_elog_val2) val2; \ + }) *ed; \ + ed = ELOG_TRACK_DATA (&vlib_global_main.elog_main, e, w->elog_track); \ + ed->thread = thread_index; \ + ed->val1 = acl_elog_val1; \ + ed->val2 = acl_elog_val2; \ + } \ +} while (0) + + +/* use like: elog_acl_maybe_trace_X3(am, "foobar: %d some u64 %lu baz: %d", "i4i8i4", int32_value, u64_value, int_value); */ + +#define elog_acl_maybe_trace_X3(am, acl_elog_trace_format_label, acl_elog_trace_format_args, acl_elog_val1, \ + acl_elog_val2, acl_elog_val3) \ +do { \ + if (am->trace_sessions) { \ + CLIB_UNUSED(struct { u8 available_space[18 - sizeof(acl_elog_val1) - sizeof(acl_elog_val2) \ + - sizeof(acl_elog_val3)]; } *static_check); \ + u16 thread_index = os_get_thread_index (); \ + vlib_worker_thread_t * w = vlib_worker_threads + thread_index; \ + ELOG_TYPE_DECLARE (e) = \ + { \ + .format = "(%02d) " acl_elog_trace_format_label, \ + .format_args = "i2" acl_elog_trace_format_args, \ + }; \ + CLIB_PACKED(struct \ + { \ + u16 thread; \ + typeof(acl_elog_val1) val1; \ + typeof(acl_elog_val2) val2; \ + typeof(acl_elog_val3) val3; \ + }) *ed; \ + ed = ELOG_TRACK_DATA (&vlib_global_main.elog_main, e, w->elog_track); \ + ed->thread = thread_index; \ + ed->val1 = acl_elog_val1; \ + ed->val2 = acl_elog_val2; \ + ed->val3 = acl_elog_val3; \ + } \ +} while (0) + + +/* use like: elog_acl_maybe_trace_X4(am, "foobar: %d some int %d baz: %d bar: %d", "i4i4i4i4", int32_value, int32_value2, int_value, int_value); */ + +#define elog_acl_maybe_trace_X4(am, acl_elog_trace_format_label, acl_elog_trace_format_args, acl_elog_val1, \ + acl_elog_val2, acl_elog_val3, acl_elog_val4) \ +do { \ + if (am->trace_sessions) { \ + CLIB_UNUSED(struct { u8 available_space[18 - sizeof(acl_elog_val1) - sizeof(acl_elog_val2) \ + - sizeof(acl_elog_val3) -sizeof(acl_elog_val4)]; } *static_check); \ + u16 thread_index = os_get_thread_index (); \ + vlib_worker_thread_t * w = vlib_worker_threads + thread_index; \ + ELOG_TYPE_DECLARE (e) = \ + { \ + .format = "(%02d) " acl_elog_trace_format_label, \ + .format_args = "i2" acl_elog_trace_format_args, \ + }; \ + CLIB_PACKED(struct \ + { \ + u16 thread; \ + typeof(acl_elog_val1) val1; \ + typeof(acl_elog_val2) val2; \ + typeof(acl_elog_val3) val3; \ + typeof(acl_elog_val4) val4; \ + }) *ed; \ + ed = ELOG_TRACK_DATA (&vlib_global_main.elog_main, e, w->elog_track); \ + ed->thread = thread_index; \ + ed->val1 = acl_elog_val1; \ + ed->val2 = acl_elog_val2; \ + ed->val3 = acl_elog_val3; \ + ed->val4 = acl_elog_val4; \ + } \ +} while (0) + #endif