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Have some sample code which I know works transmisting a packet.

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This commit is contained in:
Ross Thompson 2024-07-02 09:12:34 -07:00
parent ccf4bb8ddc
commit dc97ee5f82
2 changed files with 225 additions and 23 deletions
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136
fpga/rvvidaemon/rvvidaemon.c
View File

@ -41,9 +41,11 @@
#include <sys/socket.h> #include <sys/socket.h>
#include <net/if.h> #include <net/if.h>
#include <netinet/ether.h> #include <netinet/ether.h>
#include <linux/udp.h>
#include "rvviApi.h" // *** bug fix me when this file gets included into the correct directory. #include "rvviApi.h" // *** bug fix me when this file gets included into the correct directory.
#include "idv/idv.h" #include "idv/idv.h"
#include <netinet/in.h>
#define DEST_MAC0 0x43 #define DEST_MAC0 0x43
#define DEST_MAC1 0x68 #define DEST_MAC1 0x68
@ -67,6 +69,8 @@
#define DEFAULT_IF "eno1" #define DEFAULT_IF "eno1"
FILE *VivadoPipeFP; FILE *VivadoPipeFP;
int sockfd;
struct ifreq ifopts, if_mac; /* set promiscuous mode */
typedef struct { typedef struct {
uint64_t PC; uint64_t PC;
@ -100,6 +104,7 @@ int ProcessRvviAll(RequiredRVVI_t *InstructionData);
void set_gpr(int hart, int reg, uint64_t value); void set_gpr(int hart, int reg, uint64_t value);
void set_fpr(int hart, int reg, uint64_t value); void set_fpr(int hart, int reg, uint64_t value);
int state_compare(int hart, uint64_t Minstret); int state_compare(int hart, uint64_t Minstret);
void SendILATrigger();
int main(int argc, char **argv){ int main(int argc, char **argv){
@ -109,40 +114,57 @@ int main(int argc, char **argv){
return -1; return -1;
} }
// step 1 open a pipe to vivado /* // step 1 open a pipe to vivado */
if (( VivadoPipeFP = popen("vivado -mode tcl", "w")) == NULL){ /* if (( VivadoPipeFP = popen("vivado -mode tcl", "w")) == NULL){ */
perror("popen"); /* perror("popen"); */
exit(1); /* exit(1); */
} /* } */
fputs("open_hw_manager\n", VivadoPipeFP); /* fputs("open_hw_manager\n", VivadoPipeFP); */
fputs("connect_hw_server -url localhost:3121\n", VivadoPipeFP); /* fputs("connect_hw_server -url localhost:3121\n", VivadoPipeFP); */
fputs("current_hw_target [get_hw_targets */xilinx_tcf/Digilent/*]\n", VivadoPipeFP); /* fputs("current_hw_target [get_hw_targets *\/xilinx_tcf/Digilent/\*]\n", VivadoPipeFP); */
fputs("open_hw_target\n", VivadoPipeFP); /* fputs("open_hw_target\n", VivadoPipeFP); */
fputs("set_property PARAM.FREQUENCY 7500000 [get_hw_targets localhost:3121/xilinx_tcf/Digilent/210319B7CA87A]\n", VivadoPipeFP); /* fputs("set_property PARAM.FREQUENCY 7500000 [get_hw_targets localhost:3121/xilinx_tcf/Digilent/210319B7CA87A]\n", VivadoPipeFP); */
// *** bug these need to made relative paths. /* // *** bug these need to made relative paths. */
fputs("set_property PROBES.FILE {/home/ross/repos/cvw/fpga/generator/WallyFPGA.runs/impl_1/fpgaTop.ltx} [get_hw_devices xc7a100t_0]\n", VivadoPipeFP); /* fputs("set_property PROBES.FILE {/home/ross/repos/cvw/fpga/generator/WallyFPGA.runs/impl_1/fpgaTop.ltx} [get_hw_devices xc7a100t_0]\n", VivadoPipeFP); */
fputs("set_property FULL_PROBES.FILE {/home/ross/repos/cvw/fpga/generator/WallyFPGA.runs/impl_1/fpgaTop.ltx} [get_hw_devices xc7a100t_0]\n", VivadoPipeFP); /* fputs("set_property FULL_PROBES.FILE {/home/ross/repos/cvw/fpga/generator/WallyFPGA.runs/impl_1/fpgaTop.ltx} [get_hw_devices xc7a100t_0]\n", VivadoPipeFP); */
fputs("set_property PROGRAM.FILE {/home/ross/repos/cvw/fpga/generator/WallyFPGA.runs/impl_1/fpgaTop.bit} [get_hw_devices xc7a100t_0]\n", VivadoPipeFP); /* fputs("set_property PROGRAM.FILE {/home/ross/repos/cvw/fpga/generator/WallyFPGA.runs/impl_1/fpgaTop.bit} [get_hw_devices xc7a100t_0]\n", VivadoPipeFP); */
fputs("refresh_hw_device [lindex [get_hw_devices xc7a100t_0] 0]\n", VivadoPipeFP); /* fputs("refresh_hw_device [lindex [get_hw_devices xc7a100t_0] 0]\n", VivadoPipeFP); */
fputs("[get_hw_devices xc7a100t_0] -filter {CELL_NAME=~\"u_ila_0\"}]]\n", VivadoPipeFP); /* fputs("[get_hw_devices xc7a100t_0] -filter {CELL_NAME=~\"u_ila_0\"}]]\n", VivadoPipeFP); */
/* fflush(VivadoPipeFP); */
int sockfd;
uint8_t buf[BUF_SIZ]; uint8_t buf[BUF_SIZ];
int sockopt; int sockopt;
struct ifreq ifopts; /* set promiscuous mode */
struct ether_header *eh = (struct ether_header *) buf; struct ether_header *eh = (struct ether_header *) buf;
ssize_t headerbytes, numbytes, payloadbytes; ssize_t headerbytes, numbytes, payloadbytes;
/* Open RAW socket to receive frames */ /* Open RAW socket to receive frames */
if ((sockfd = socket(AF_PACKET, SOCK_RAW, htons(ETHER_TYPE))) == -1) { if ((sockfd = socket(AF_PACKET, SOCK_RAW, htons(ETHER_TYPE))) == -1) {
// *** remove. This is not the problem
//if ((sockfd = socket(AF_PACKET, SOCK_RAW, IPPROTO_RAW)) == -1) {
perror("socket"); perror("socket");
} }
printf("sockfd %x\n", sockfd);
printf("Here 0\n"); printf("Here 0\n");
/* Set interface to promiscuous mode - do we need to do this every time? */ /* Set interface to promiscuous mode - do we need to do this every time? */
memset(&ifopts, 0, sizeof(struct ifreq));
strncpy(ifopts.ifr_name, argv[1], IFNAMSIZ-1); strncpy(ifopts.ifr_name, argv[1], IFNAMSIZ-1);
ioctl(sockfd, SIOCGIFFLAGS, &ifopts); ioctl(sockfd, SIOCGIFFLAGS, &ifopts);
/* Get the index of the interface to send on */
//memset(&if_idx, 0, sizeof(struct ifreq));
//strncpy(if_idx.ifr_name, argv[1], IFNAMSIZ-1);
if (ioctl(sockfd, SIOCGIFINDEX, &ifopts) < 0)
perror("SIOCGIFINDEX");
/* Get the MAC address of the interface to send on */
memset(&if_mac, 0, sizeof(struct ifreq));
strncpy(if_mac.ifr_name, argv[1], IFNAMSIZ-1);
if (ioctl(sockfd, SIOCGIFHWADDR, &if_mac) < 0)
perror("SIOCGIFHWADDR");
printf("Here 1\n"); printf("Here 1\n");
ifopts.ifr_flags |= IFF_PROMISC; ifopts.ifr_flags |= IFF_PROMISC;
ioctl(sockfd, SIOCSIFFLAGS, &ifopts); ioctl(sockfd, SIOCSIFFLAGS, &ifopts);
@ -163,6 +185,8 @@ int main(int argc, char **argv){
exit(EXIT_FAILURE); exit(EXIT_FAILURE);
} }
printf("Here 4\n"); printf("Here 4\n");
SendILATrigger();
exit(0);
if(!rvviVersionCheck(RVVI_API_VERSION)){ if(!rvviVersionCheck(RVVI_API_VERSION)){
printf("Bad RVVI_API_VERSION\n"); printf("Bad RVVI_API_VERSION\n");
@ -241,7 +265,8 @@ int main(int argc, char **argv){
printf("Simulation halted due to mismatch\n"); printf("Simulation halted due to mismatch\n");
pclose(VivadoPipeFP); //pclose(VivadoPipeFP);
printf("closed pipe to vivado\n");
close(sockfd); close(sockfd);
@ -291,18 +316,82 @@ int state_compare(int hart, uint64_t Minstret){
} }
if (result == 0) { if (result == 0) {
SendILATrigger();
sprintf(buf, "MISMATCH @ instruction # %ld\n", Minstret); sprintf(buf, "MISMATCH @ instruction # %ld\n", Minstret);
idvMsgError(buf); idvMsgError(buf);
fputs("run_hw_ila [get_hw_ilas -of_objects [get_hw_devices xc7a100t_0] -filter {CELL_NAME=~\"u_ila_0\"}] -trigger_now\n", VivadoPipeFP); /* fputs("run_hw_ila [get_hw_ilas -of_objects [get_hw_devices xc7a100t_0] -filter {CELL_NAME=~\"u_ila_0\"}] -trigger_now\n", VivadoPipeFP); */
fputs("current_hw_ila_data [upload_hw_ila_data hw_ila_1]\n", VivadoPipeFP); /* fputs("current_hw_ila_data [upload_hw_ila_data hw_ila_1]\n", VivadoPipeFP); */
fputs("display_hw_ila_data [current_hw_ila_data]\n", VivadoPipeFP); /* fputs("display_hw_ila_data [current_hw_ila_data]\n", VivadoPipeFP); */
fputs("write_hw_ila_data my_hw_ila_data [current_hw_ila_data]\n", VivadoPipeFP); /* fputs("write_hw_ila_data -force my_hw_ila_data [current_hw_ila_data]\n", VivadoPipeFP); */
/* fflush(VivadoPipeFP); */
return -1; return -1;
//if (ON_MISMATCH_DUMP_STATE) dump_state(hart); //if (ON_MISMATCH_DUMP_STATE) dump_state(hart);
} }
} }
void SendILATrigger(){
uint8_t buf[BUF_SIZ];
struct ether_header *eh = (struct ether_header *) buf;
int crc32;
struct sockaddr_ll socket_address;
eh->ether_dhost[0] = DEST_MAC0;
eh->ether_dhost[1] = DEST_MAC1;
eh->ether_dhost[2] = DEST_MAC2;
eh->ether_dhost[3] = DEST_MAC3;
eh->ether_dhost[4] = DEST_MAC4;
eh->ether_dhost[5] = DEST_MAC5;
//c8:4b:d6:5f:89:25 is the real source mac for this laptop. I don't think it needs to be correct.
/* eh->ether_shost[0] = SRC_MAC0; */
/* eh->ether_shost[1] = SRC_MAC1; */
/* eh->ether_shost[2] = SRC_MAC2; */
/* eh->ether_shost[3] = SRC_MAC3; */
/* eh->ether_shost[4] = SRC_MAC4; */
/* eh->ether_shost[5] = SRC_MAC5; */
eh->ether_shost[0] = ((uint8_t *)&if_mac.ifr_hwaddr.sa_data)[0];
eh->ether_shost[1] = ((uint8_t *)&if_mac.ifr_hwaddr.sa_data)[1];
eh->ether_shost[2] = ((uint8_t *)&if_mac.ifr_hwaddr.sa_data)[2];
eh->ether_shost[3] = ((uint8_t *)&if_mac.ifr_hwaddr.sa_data)[3];
eh->ether_shost[4] = ((uint8_t *)&if_mac.ifr_hwaddr.sa_data)[4];
eh->ether_shost[5] = ((uint8_t *)&if_mac.ifr_hwaddr.sa_data)[5];
eh->ether_type = htons(ETH_P_IP);
//buf[12] = (ETHER_TYPE) >> 8;
//buf[13] = (ETHER_TYPE) && 0xFF; // *** does not work for some reason
buf[13] = 0;
buf[14] = 't';
buf[15] = 'r';
buf[16] = 'i';
buf[17] = 'g';
buf[18] = 'i';
buf[19] = 'n';
memset(&buf[20], 0, 40); // fill 36 bytes of 0
int i;
printf("buffer: ");
for(i = 0; i < 60; i++){
printf("%02x ", buf[i]);
}
printf("\n");
//if (sendto(sockfd, buf, 60, 0, NULL, 0)) {
printf("sockfd %x\n", sockfd);
/* Index of the network device */
socket_address.sll_ifindex = ifopts.ifr_ifindex;
/* Address length*/
socket_address.sll_halen = ETH_ALEN;
/* Destination MAC */
socket_address.sll_addr[0] = DEST_MAC0;
socket_address.sll_addr[1] = DEST_MAC1;
socket_address.sll_addr[2] = DEST_MAC2;
socket_address.sll_addr[3] = DEST_MAC3;
socket_address.sll_addr[4] = DEST_MAC4;
socket_address.sll_addr[5] = DEST_MAC5;
if (sendto(sockfd, buf, 60, MSG_DONTROUTE, (struct sockaddr*)&socket_address, sizeof(struct sockaddr_ll)) < 0) {
perror("ugh why???????????????????? sendto()");
exit(3);
}
}
void set_gpr(int hart, int reg, uint64_t value){ void set_gpr(int hart, int reg, uint64_t value){
rvviDutGprSet(hart, reg, value); rvviDutGprSet(hart, reg, value);
} }
@ -465,3 +554,4 @@ void BitShiftArray(uint8_t *dst, uint8_t *src, uint8_t ShiftAmount, int Length){
byte1 = byte1 >> ShiftAmount; byte1 = byte1 >> ShiftAmount;
dst[Length-1] = byte1; dst[Length-1] = byte1;
} }

112
fpga/rvvidaemon/send-copy.c Normal file
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@ -0,0 +1,112 @@
/*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*/
#include <arpa/inet.h>
#include <linux/if_packet.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
#include <net/if.h>
#include <netinet/ether.h>
#define DEST_MAC0 0x43
#define DEST_MAC1 0x68
#define DEST_MAC2 0x11
#define DEST_MAC3 0x11
#define DEST_MAC4 0x02
#define DEST_MAC5 0x45
#define DEFAULT_IF "eth0"
#define BUF_SIZ 1024
int main(int argc, char *argv[])
{
int sockfd;
struct ifreq if_idx;
struct ifreq if_mac;
int tx_len = 0;
char sendbuf[BUF_SIZ];
struct ether_header *eh = (struct ether_header *) sendbuf;
struct iphdr *iph = (struct iphdr *) (sendbuf + sizeof(struct ether_header));
struct sockaddr_ll socket_address;
char ifName[IFNAMSIZ];
/* Get interface name */
if (argc > 1)
strcpy(ifName, argv[1]);
else
strcpy(ifName, DEFAULT_IF);
/* Open RAW socket to send on */
if ((sockfd = socket(AF_PACKET, SOCK_RAW, IPPROTO_RAW)) == -1) {
perror("socket");
}
/* Get the index of the interface to send on */
memset(&if_idx, 0, sizeof(struct ifreq));
strncpy(if_idx.ifr_name, ifName, IFNAMSIZ-1);
if (ioctl(sockfd, SIOCGIFINDEX, &if_idx) < 0)
perror("SIOCGIFINDEX");
/* Get the MAC address of the interface to send on */
memset(&if_mac, 0, sizeof(struct ifreq));
strncpy(if_mac.ifr_name, ifName, IFNAMSIZ-1);
if (ioctl(sockfd, SIOCGIFHWADDR, &if_mac) < 0)
perror("SIOCGIFHWADDR");
/* Construct the Ethernet header */
memset(sendbuf, 0, BUF_SIZ);
/* Ethernet header */
eh->ether_shost[0] = ((uint8_t *)&if_mac.ifr_hwaddr.sa_data)[0];
eh->ether_shost[1] = ((uint8_t *)&if_mac.ifr_hwaddr.sa_data)[1];
eh->ether_shost[2] = ((uint8_t *)&if_mac.ifr_hwaddr.sa_data)[2];
eh->ether_shost[3] = ((uint8_t *)&if_mac.ifr_hwaddr.sa_data)[3];
eh->ether_shost[4] = ((uint8_t *)&if_mac.ifr_hwaddr.sa_data)[4];
eh->ether_shost[5] = ((uint8_t *)&if_mac.ifr_hwaddr.sa_data)[5];
eh->ether_dhost[0] = DEST_MAC0;
eh->ether_dhost[1] = DEST_MAC1;
eh->ether_dhost[2] = DEST_MAC2;
eh->ether_dhost[3] = DEST_MAC3;
eh->ether_dhost[4] = DEST_MAC4;
eh->ether_dhost[5] = DEST_MAC5;
/* Ethertype field */
eh->ether_type = htons(ETH_P_IP);
tx_len += sizeof(struct ether_header);
/* Packet data */
sendbuf[tx_len++] = 0xde;
sendbuf[tx_len++] = 0xad;
sendbuf[tx_len++] = 0xbe;
sendbuf[tx_len++] = 0xef;
/* Index of the network device */
socket_address.sll_ifindex = if_idx.ifr_ifindex;
/* Address length*/
socket_address.sll_halen = ETH_ALEN;
/* Destination MAC */
socket_address.sll_addr[0] = DEST_MAC0;
socket_address.sll_addr[1] = DEST_MAC1;
socket_address.sll_addr[2] = DEST_MAC2;
socket_address.sll_addr[3] = DEST_MAC3;
socket_address.sll_addr[4] = DEST_MAC4;
socket_address.sll_addr[5] = DEST_MAC5;
int i;
printf("buffer: ");
for(i=0;i<tx_len;i++){
printf("%02hhx ", sendbuf[i]);
}
printf("\n");
/* Send packet */
if (sendto(sockfd, sendbuf, tx_len, 0, (struct sockaddr*)&socket_address, sizeof(struct sockaddr_ll)) < 0)
printf("Send failed\n");
printf("send success!\n");
return 0;
}