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bloqaudio
3b8dba6e87
The CPU's own MAC exists in the L2 table only as a learned entry, created whenever the CPU transmits, and it ages out like any other dynamic entry. Unknown unicast is not flooded to the CPU port, so on an idle switch (no web session, no management traffic) the entry expires after the aging time and frames for the management IP no longer reach the CPU: pings die until the next CPU transmission (an ARP reply) re-teaches the entry, then die again. Real management sessions keep the entry alive continuously, which is why this is only visible on idle switches. Install a static entry for the management MAC on the CPU port after the startup config has been replayed, so it lands in the final management VLAN, and move it when the management VLAN is changed at runtime. Entry mechanics, established on hardware: a table write with read-method 0 hashes the key in TBL_DATA_IN and places the entry itself (a search returns index 0 on a miss, there is no software-visible insertion slot). The age field in the third data word must be non-zero for the entry to be visible to lookup at all, and the static flag (bit 0 of byte 1 of that word) stops the aging engine from decrementing it: with the flag a full-age entry survives untouched where an identical unflagged entry ages to invisible within the aging period. With no management VLAN configured the entry lives in VLAN 1.
87 lines
3.0 KiB
C
87 lines
3.0 KiB
C
#ifndef _RTL837X_PORT_H_
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#define _RTL837X_PORT_H_
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#include <stdint.h>
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#include "rtl837x_regs.h"
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#define STAT_COUNTER_TX_PKTS 46
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#define STAT_COUNTER_RX_PKTS 47
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#define STAT_COUNTER_ERR_PKTS 48
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#define STAT_GET(cnt, port) do { \
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REG_WRITE(RTL837X_STAT_GET, 0x00, 0x00, cnt >> 3, (cnt << 5) | (port << 1) | 1); \
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do { \
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reg_read_m(RTL837X_STAT_GET); \
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} while (sfr_data[3] & 0x1); \
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} while (0)
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// Possible values for ingress filter type
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typedef enum {
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VLAN_ALL = INGR_ALLOW_ALL,
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VLAN_TAGGED = INGR_ALLOW_TAGGED,
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VLAN_UNTAGGED = INGR_ALLOW_UNTAGGED,
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VLAN_INVALID = 3
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} vlan_ingress_mode_e;
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// Since we lack a way to force enum to be 1 byte,
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// This is a typedef for the VLAN ingress filter type
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// which holds vlan_ingress_mode_e values
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typedef uint8_t vlan_ingress_mode_t;
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struct vlan_settings {
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uint16_t vlan;
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uint16_t members;
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uint16_t tagged;
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};
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/*
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* Port EEE settings
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*/
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#define EEE_100 0x01
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#define EEE_1000 0x04
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#define EEE_2G5 0x10
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#define EEE_5G 0x20
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#define EEE_10G 0x40
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#define EEE_NORESET 0x80
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extern __xdata struct vlan_settings vlan_settings;
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uint8_t port_l2_forget(void) __banked;
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void port_l2_learned(void) __banked;
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void port_stats_print(void) __banked;
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int8_t vlan_get(uint16_t vlan) __banked;
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__xdata uint16_t vlan_name(uint16_t vlan) __banked;
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void vlan_name_remove(uint16_t vlan) __banked;
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void vlan_setup(void) __banked;
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void port_pvid_set(uint8_t port, __xdata uint16_t pvid) __banked;
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uint16_t port_pvid_get(uint8_t port) __banked;
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void port_l2mc_set(uint8_t mac_last, __xdata uint16_t vid, __xdata uint16_t pmask) __banked;
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void port_l2_forget_port(uint8_t port) __banked;
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void vlan_create(void) __banked;
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void vlan_delete(uint16_t vlan) __banked;
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void vlan_dump(void) __banked;
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void port_mirror_set(uint8_t port, __xdata uint16_t rx_pmask, __xdata uint16_t tx_pmask) __banked;
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void port_mirror_del(void) __banked;
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bool port_ingress_filter(__xdata uint8_t port, __xdata vlan_ingress_mode_t type) __banked;
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void port_l2_setup(void) __banked;
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uint16_t port_lag_members_get(uint8_t lag) __banked;
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#define PORT_LAG_NONE 0xff
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uint8_t port_lag_of(uint8_t port) __banked;
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void port_lag_members_set(__xdata uint8_t lag, __xdata uint16_t members) __banked;
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void port_lag_hash_set(__xdata uint8_t lag, __xdata uint8_t hash) __banked;
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void port_eee_enable_all(__xdata uint8_t speed) __banked;
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void port_eee_disable_all(void) __banked;
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void port_eee_status_all(void) __banked;
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void port_eee_enable(__xdata uint8_t port, __xdata uint8_t speed) __banked;
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void port_eee_disable(uint8_t port) __banked;
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void port_eee_status(uint8_t port) __banked;
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void print_port_ingress_filter_mode(vlan_ingress_mode_t mode) __banked;
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bool port_ingress_vlan_filter_set(uint8_t port, __xdata bool enabled) __banked;
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bool port_ingress_vlan_filter_get(uint8_t port) __banked;
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vlan_ingress_mode_t port_ingress_filter_get(__xdata uint8_t port) __banked;
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void port_isolate(uint8_t port, __xdata uint16_t pmask) __banked;
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uint16_t port_isolation_get(uint8_t port) __banked;
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void port_l2_static_mgmt(__xdata uint8_t *mac, __xdata uint16_t vlan, __xdata bool remove_entry) __banked;
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#endif
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