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65 lines
2.5 KiB
C
65 lines
2.5 KiB
C
#ifndef _RTL837X_STP_H_
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#define _RTL837X_STP_H_
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#include <stdint.h>
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#include "rtl837x_common.h"
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void stp_in(void) __banked;
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void stp_setup(void) __banked;
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void stp_timers(void) __banked;
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void stp_off(void) __banked;
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void stp_parse(void) __banked __reentrant;
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void stp_defaults(void) __banked;
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/* Tick rate of stp_timers(), also used by the web UI. */
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#define STP_HZ 50
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#define STP_PORTS (CPU_PORT + 1)
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#define STP_LAG_BASE STP_PORTS
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#define STP_LAG_COUNT 4
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#define STP_ENTITIES (STP_LAG_BASE + STP_LAG_COUNT)
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/* Bridge identifier as carried in a BPDU (priority, extension, MAC). */
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struct bridge {
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uint8_t prio;
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uint8_t ext;
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uint8_t mac[6];
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};
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extern __xdata uint8_t stp_prio;
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extern __xdata uint8_t stp_hello_s;
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extern __xdata uint8_t stp_maxage_s;
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extern __xdata uint8_t stp_fwddelay_s;
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extern __xdata uint8_t stp_rstp;
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extern __xdata uint8_t stp_txhold;
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/* Per-port config/status flags (stp_pflags[]) */
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#define STP_PF_ENABLED 0x01 /* port participates in STP (default on) */
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#define STP_PF_ADMEDGE 0x02 /* admin edge: forwarding immediately */
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#define STP_PF_AUTOEDGE 0x04 /* auto edge: forward after 3 s without BPDU */
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#define STP_PF_BPDUGUARD 0x08 /* disable port if a BPDU arrives */
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#define STP_PF_ROOTGUARD 0x10 /* never accept a better root on this port */
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#define STP_PF_FILTER 0x20 /* neither send nor accept BPDUs */
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#define STP_PF_OPEREDGE 0x40 /* runtime: port went forwarding as an edge */
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#define STP_PF_TRIPPED 0x80 /* runtime: disabled by BPDU guard */
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extern __xdata uint8_t stp_pflags[STP_ENTITIES];
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extern __xdata uint32_t stp_pcost[STP_ENTITIES]; /* path cost; 0 = auto (20000) */
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extern __xdata uint8_t stp_pprio[STP_ENTITIES];
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extern __xdata uint8_t stp_pp2p[STP_ENTITIES];
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extern __xdata uint8_t stp_ent_of[STP_PORTS]; /* the STP entity a port answers to: itself, or its lag */
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extern __xdata uint16_t stp_lag_mask[STP_LAG_COUNT]; /* member ports of each lag; 0 = not part of STP */
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/* Last-heard designated info per port (from received BPDUs); consult
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* stp_bpdu_age to decide whether it is still current. */
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extern __xdata struct bridge stp_dbridge[STP_ENTITIES];
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extern __xdata uint16_t stp_dpid[STP_ENTITIES];
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extern __xdata uint32_t stp_dcost[STP_ENTITIES];
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extern __xdata uint16_t stp_bpdu_age[STP_ENTITIES]; /* ticks since a BPDU was heard */
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extern __xdata struct bridge root_bridge;
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extern __xdata uint32_t root_bridge_cost;
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extern __xdata uint8_t stp_root_port;
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extern __xdata uint16_t stp_tc_count;
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#endif
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