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logicog
c8c524b71f
This adds an implementation for trapping IGMP packets to the CPU which will identify IGMPv1/2/3 packets, but handle only v3. The implementation then inserts/updates/deletes L3 MC entries in the L3 lookup table. The entries consist of an Ipv4 Destination IP (the IPv4 MC address), a Source IP (0.0.0.0) and a Portmask. Note that this implementation is not VLAN aware, as there is no hardware support in the device. An alternative strategy is to control switching of the L2-MC packets in which the IPv4-MC packets are transported (dst-MaC is 01:00:5e:xx:yy:zz, with xx:yy:zz corresponding to bits in the Ipv4-MC address). This will allow to use VLAN-aware packet switching. While code support is there for table insert/update/deletes, some further L2 configuration is missing. There is no support for IPv6 MC, yet.
121 lines
3.7 KiB
C
121 lines
3.7 KiB
C
#ifndef _RTL837X_STDIO_H_
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#define _RTL837X_STDIO_H_
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#include "uip/uip-conf.h"
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#include <stdint.h>
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#include <stdbool.h>
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// SCL and SDA pin numbers for SFP cage 0 and SFP cage 1
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#define SCL_PIN 3
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#define SDA_PIN_0 4
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#define SDA_PIN_1 3
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#define CPU_PORT 9
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// Define Port-masks for 9-port devices and 6-port devices
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#define PMASK_9 0x1ff
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#define PMASK_6 0x1f8
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#define PMASK_CPU 0x200
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// Defines a port mask for dropping all packets on Lookup-miss
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#define LOOKUP_MISS_DROP_6 0x00015540
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#define LOOKUP_MISS_DROP_9 0x00015555
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#define LOOKUP_MISS_FLOOD 0x00000000
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// The serial buffer. Defines the command line size
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// Must be 2^x and <= 128
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#define SBUF_SIZE 128
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// Size of the TCP Output buffer
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#define TCP_OUTBUF_SIZE 2500
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// Size of the memory area dedicated to VLAN-names
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#define VLAN_NAMES_SIZE 1024
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// For RX data, a propriatary RTL FRAME is inserted. Instead of 0x0800 for IPv4,
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// the RTL_FRAME_TAG_ID is used as part of an 8-byte tag. When VLAN is activated,
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// the VLAN tag is inserted after the RTL tag
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// See here for the RTL tag: https://github.com/torvalds/linux/commit/1521d5adfc2b557e15f97283c8b7ad688c3ebc40
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#define RTL_TAG_SIZE 8
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#define VLAN_TAG_SIZE 4
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#define RTL_FRAME_TAG_ID 0x8899
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// For RX and TX, an 8 byte header describing the frame to be moved to the Asic
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// and received from the Asic is used
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#define RTL_FRAME_HEADER_SIZE 8
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// This is the standard size of an Ethernet frame header
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#define ETHER_HEADER_SIZE 14
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#define CONFIG_START 0x70000
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#define CONFIG_LEN 0x1000
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#define CODE0_SIZE 0x4000
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#define CODE_BANK_SIZE 0xc000
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// Constants for the circular command buffer, the size must be 2^n
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#define CMD_HISTORY_SIZE 0x400
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#define CMD_HISTORY_MASK (CMD_HISTORY_SIZE - 1)
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/**
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* Representation of a 48-bit Ethernet address.
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*/
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struct uip_eth_addr {
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uint8_t addr[6];
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};
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struct flash_region_t {
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uint32_t addr;
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uint16_t len;
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};
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extern __xdata uint8_t uip_buf[UIP_CONF_BUFFER_SIZE+2];
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// 8899 04 0000 20 0004
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struct rtl_tag {
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uint16_t tag;
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uint8_t version;
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uint8_t reason;
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uint16_t flags;
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uint16_t pmask; // A bit mask for a TX pkt, 4-bit port-number for RX
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};
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// Headers for calls in the common code area (HOME/BANK0)
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void print_string(__code char *p);
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void print_long(__xdata uint32_t a);
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void print_short(uint16_t a);
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void print_byte(uint8_t a);
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void print_sfr_data(void);
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void print_phy_data(void);
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void phy_write_mask(uint16_t phy_mask, uint8_t dev_id, uint16_t reg, uint16_t v);
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void phy_write(uint8_t phy_id, uint8_t dev_id, uint16_t reg, uint16_t v);
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void phy_read(uint8_t phy_id, uint8_t dev_id, uint16_t reg);
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void phy_modify(uint8_t phy_id, uint8_t dev_id, uint16_t reg, uint16_t mask, uint16_t set);
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void reg_read(uint16_t reg_addr);
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void reg_read_m(uint16_t reg_addr);
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void reg_write(uint16_t reg_addr);
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void reg_write_m(uint16_t reg_addr);
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void delay(uint16_t t);
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void sleep(uint16_t t);
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void write_char(char c);
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void print_reg(uint16_t reg);
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uint8_t sfp_read_reg(uint8_t slot, uint8_t reg);
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void reg_bit_set(uint16_t reg_addr, char bit);
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void reg_bit_clear(uint16_t reg_addr, char bit);
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void sfr_set_zero(void);
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void reset_chip(void);
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void memcpy(__xdata void * __xdata dst, __xdata const void * __xdata src, uint16_t len);
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void memcpyc(register __xdata uint8_t *dst, register __code uint8_t *src, register uint16_t len);
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void memset(register __xdata uint8_t *dst, register __xdata uint8_t v, register uint8_t len);
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uint16_t strlen(register __code const char *s);
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uint16_t strlen_x(register __xdata const char *s);
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uint16_t strtox(register __xdata uint8_t *dst, register __code const char *s);
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void tcpip_output(void);
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void print_string_x(__xdata char *p);
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uint8_t read_flash(uint8_t bank, __code uint8_t *addr);
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void get_random_32(void);
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void read_reg_timer(uint32_t * tmr);
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void sfp_print_info(uint8_t sfp);
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bool gpio_pin_test(uint8_t pin);
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#endif
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