mirror of
https://github.com/openhwgroup/cvw.git
synced 2025-04-22 12:57:23 -04:00
Have some sample code which I know works transmisting a packet.
This commit is contained in:
Ross Thompson
parent
ccf4bb8ddc
commit
dc97ee5f82
2 changed files with 225 additions and 23 deletions
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@ -41,9 +41,11 @@
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#include <sys/socket.h>
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#include <net/if.h>
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#include <netinet/ether.h>
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#include <linux/udp.h>
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#include "rvviApi.h" // *** bug fix me when this file gets included into the correct directory.
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#include "idv/idv.h"
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#include <netinet/in.h>
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#define DEST_MAC0 0x43
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#define DEST_MAC1 0x68
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@ -67,6 +69,8 @@
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#define DEFAULT_IF "eno1"
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FILE *VivadoPipeFP;
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int sockfd;
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struct ifreq ifopts, if_mac; /* set promiscuous mode */
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typedef struct {
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uint64_t PC;
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@ -100,6 +104,7 @@ int ProcessRvviAll(RequiredRVVI_t *InstructionData);
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void set_gpr(int hart, int reg, uint64_t value);
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void set_fpr(int hart, int reg, uint64_t value);
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int state_compare(int hart, uint64_t Minstret);
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void SendILATrigger();
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int main(int argc, char **argv){
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@ -109,40 +114,57 @@ int main(int argc, char **argv){
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return -1;
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}
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// step 1 open a pipe to vivado
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if (( VivadoPipeFP = popen("vivado -mode tcl", "w")) == NULL){
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perror("popen");
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exit(1);
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}
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fputs("open_hw_manager\n", VivadoPipeFP);
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fputs("connect_hw_server -url localhost:3121\n", VivadoPipeFP);
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fputs("current_hw_target [get_hw_targets */xilinx_tcf/Digilent/*]\n", VivadoPipeFP);
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fputs("open_hw_target\n", VivadoPipeFP);
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fputs("set_property PARAM.FREQUENCY 7500000 [get_hw_targets localhost:3121/xilinx_tcf/Digilent/210319B7CA87A]\n", VivadoPipeFP);
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/* // step 1 open a pipe to vivado */
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/* if (( VivadoPipeFP = popen("vivado -mode tcl", "w")) == NULL){ */
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/* perror("popen"); */
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/* exit(1); */
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/* } */
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/* fputs("open_hw_manager\n", VivadoPipeFP); */
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/* fputs("connect_hw_server -url localhost:3121\n", VivadoPipeFP); */
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/* fputs("current_hw_target [get_hw_targets *\/xilinx_tcf/Digilent/\*]\n", VivadoPipeFP); */
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/* fputs("open_hw_target\n", VivadoPipeFP); */
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/* fputs("set_property PARAM.FREQUENCY 7500000 [get_hw_targets localhost:3121/xilinx_tcf/Digilent/210319B7CA87A]\n", VivadoPipeFP); */
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// *** bug these need to made relative paths.
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fputs("set_property PROBES.FILE {/home/ross/repos/cvw/fpga/generator/WallyFPGA.runs/impl_1/fpgaTop.ltx} [get_hw_devices xc7a100t_0]\n", VivadoPipeFP);
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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);
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fputs("set_property PROGRAM.FILE {/home/ross/repos/cvw/fpga/generator/WallyFPGA.runs/impl_1/fpgaTop.bit} [get_hw_devices xc7a100t_0]\n", VivadoPipeFP);
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fputs("refresh_hw_device [lindex [get_hw_devices xc7a100t_0] 0]\n", VivadoPipeFP);
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fputs("[get_hw_devices xc7a100t_0] -filter {CELL_NAME=~\"u_ila_0\"}]]\n", VivadoPipeFP);
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/* // *** bug these need to made relative paths. */
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/* fputs("set_property PROBES.FILE {/home/ross/repos/cvw/fpga/generator/WallyFPGA.runs/impl_1/fpgaTop.ltx} [get_hw_devices xc7a100t_0]\n", VivadoPipeFP); */
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/* 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); */
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/* fputs("set_property PROGRAM.FILE {/home/ross/repos/cvw/fpga/generator/WallyFPGA.runs/impl_1/fpgaTop.bit} [get_hw_devices xc7a100t_0]\n", VivadoPipeFP); */
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/* fputs("refresh_hw_device [lindex [get_hw_devices xc7a100t_0] 0]\n", VivadoPipeFP); */
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/* fputs("[get_hw_devices xc7a100t_0] -filter {CELL_NAME=~\"u_ila_0\"}]]\n", VivadoPipeFP); */
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/* fflush(VivadoPipeFP); */
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int sockfd;
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uint8_t buf[BUF_SIZ];
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int sockopt;
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struct ifreq ifopts; /* set promiscuous mode */
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struct ether_header *eh = (struct ether_header *) buf;
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ssize_t headerbytes, numbytes, payloadbytes;
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/* Open RAW socket to receive frames */
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if ((sockfd = socket(AF_PACKET, SOCK_RAW, htons(ETHER_TYPE))) == -1) {
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// *** remove. This is not the problem
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//if ((sockfd = socket(AF_PACKET, SOCK_RAW, IPPROTO_RAW)) == -1) {
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perror("socket");
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}
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printf("sockfd %x\n", sockfd);
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printf("Here 0\n");
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/* Set interface to promiscuous mode - do we need to do this every time? */
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memset(&ifopts, 0, sizeof(struct ifreq));
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strncpy(ifopts.ifr_name, argv[1], IFNAMSIZ-1);
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ioctl(sockfd, SIOCGIFFLAGS, &ifopts);
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/* Get the index of the interface to send on */
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//memset(&if_idx, 0, sizeof(struct ifreq));
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//strncpy(if_idx.ifr_name, argv[1], IFNAMSIZ-1);
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if (ioctl(sockfd, SIOCGIFINDEX, &ifopts) < 0)
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perror("SIOCGIFINDEX");
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/* Get the MAC address of the interface to send on */
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memset(&if_mac, 0, sizeof(struct ifreq));
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strncpy(if_mac.ifr_name, argv[1], IFNAMSIZ-1);
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if (ioctl(sockfd, SIOCGIFHWADDR, &if_mac) < 0)
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perror("SIOCGIFHWADDR");
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printf("Here 1\n");
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ifopts.ifr_flags |= IFF_PROMISC;
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ioctl(sockfd, SIOCSIFFLAGS, &ifopts);
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@ -163,6 +185,8 @@ int main(int argc, char **argv){
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exit(EXIT_FAILURE);
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}
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printf("Here 4\n");
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SendILATrigger();
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exit(0);
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if(!rvviVersionCheck(RVVI_API_VERSION)){
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printf("Bad RVVI_API_VERSION\n");
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@ -241,7 +265,8 @@ int main(int argc, char **argv){
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printf("Simulation halted due to mismatch\n");
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pclose(VivadoPipeFP);
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//pclose(VivadoPipeFP);
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printf("closed pipe to vivado\n");
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close(sockfd);
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@ -291,18 +316,82 @@ int state_compare(int hart, uint64_t Minstret){
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}
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if (result == 0) {
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SendILATrigger();
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sprintf(buf, "MISMATCH @ instruction # %ld\n", Minstret);
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idvMsgError(buf);
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fputs("run_hw_ila [get_hw_ilas -of_objects [get_hw_devices xc7a100t_0] -filter {CELL_NAME=~\"u_ila_0\"}] -trigger_now\n", VivadoPipeFP);
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fputs("current_hw_ila_data [upload_hw_ila_data hw_ila_1]\n", VivadoPipeFP);
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fputs("display_hw_ila_data [current_hw_ila_data]\n", VivadoPipeFP);
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fputs("write_hw_ila_data my_hw_ila_data [current_hw_ila_data]\n", VivadoPipeFP);
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/* fputs("run_hw_ila [get_hw_ilas -of_objects [get_hw_devices xc7a100t_0] -filter {CELL_NAME=~\"u_ila_0\"}] -trigger_now\n", VivadoPipeFP); */
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/* fputs("current_hw_ila_data [upload_hw_ila_data hw_ila_1]\n", VivadoPipeFP); */
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/* fputs("display_hw_ila_data [current_hw_ila_data]\n", VivadoPipeFP); */
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/* fputs("write_hw_ila_data -force my_hw_ila_data [current_hw_ila_data]\n", VivadoPipeFP); */
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/* fflush(VivadoPipeFP); */
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return -1;
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//if (ON_MISMATCH_DUMP_STATE) dump_state(hart);
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}
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}
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void SendILATrigger(){
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uint8_t buf[BUF_SIZ];
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struct ether_header *eh = (struct ether_header *) buf;
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int crc32;
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struct sockaddr_ll socket_address;
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eh->ether_dhost[0] = DEST_MAC0;
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eh->ether_dhost[1] = DEST_MAC1;
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eh->ether_dhost[2] = DEST_MAC2;
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eh->ether_dhost[3] = DEST_MAC3;
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eh->ether_dhost[4] = DEST_MAC4;
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eh->ether_dhost[5] = DEST_MAC5;
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//c8:4b:d6:5f:89:25 is the real source mac for this laptop. I don't think it needs to be correct.
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/* eh->ether_shost[0] = SRC_MAC0; */
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/* eh->ether_shost[1] = SRC_MAC1; */
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/* eh->ether_shost[2] = SRC_MAC2; */
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/* eh->ether_shost[3] = SRC_MAC3; */
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/* eh->ether_shost[4] = SRC_MAC4; */
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/* eh->ether_shost[5] = SRC_MAC5; */
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eh->ether_shost[0] = ((uint8_t *)&if_mac.ifr_hwaddr.sa_data)[0];
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eh->ether_shost[1] = ((uint8_t *)&if_mac.ifr_hwaddr.sa_data)[1];
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eh->ether_shost[2] = ((uint8_t *)&if_mac.ifr_hwaddr.sa_data)[2];
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eh->ether_shost[3] = ((uint8_t *)&if_mac.ifr_hwaddr.sa_data)[3];
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eh->ether_shost[4] = ((uint8_t *)&if_mac.ifr_hwaddr.sa_data)[4];
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eh->ether_shost[5] = ((uint8_t *)&if_mac.ifr_hwaddr.sa_data)[5];
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eh->ether_type = htons(ETH_P_IP);
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//buf[12] = (ETHER_TYPE) >> 8;
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//buf[13] = (ETHER_TYPE) && 0xFF; // *** does not work for some reason
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buf[13] = 0;
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buf[14] = 't';
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buf[15] = 'r';
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buf[16] = 'i';
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buf[17] = 'g';
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buf[18] = 'i';
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buf[19] = 'n';
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memset(&buf[20], 0, 40); // fill 36 bytes of 0
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int i;
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printf("buffer: ");
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for(i = 0; i < 60; i++){
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printf("%02x ", buf[i]);
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}
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printf("\n");
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//if (sendto(sockfd, buf, 60, 0, NULL, 0)) {
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printf("sockfd %x\n", sockfd);
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/* Index of the network device */
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socket_address.sll_ifindex = ifopts.ifr_ifindex;
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/* Address length*/
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socket_address.sll_halen = ETH_ALEN;
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/* Destination MAC */
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socket_address.sll_addr[0] = DEST_MAC0;
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socket_address.sll_addr[1] = DEST_MAC1;
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socket_address.sll_addr[2] = DEST_MAC2;
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socket_address.sll_addr[3] = DEST_MAC3;
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socket_address.sll_addr[4] = DEST_MAC4;
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socket_address.sll_addr[5] = DEST_MAC5;
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if (sendto(sockfd, buf, 60, MSG_DONTROUTE, (struct sockaddr*)&socket_address, sizeof(struct sockaddr_ll)) < 0) {
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perror("ugh why???????????????????? sendto()");
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exit(3);
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}
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}
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void set_gpr(int hart, int reg, uint64_t value){
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rvviDutGprSet(hart, reg, value);
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}
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@ -465,3 +554,4 @@ void BitShiftArray(uint8_t *dst, uint8_t *src, uint8_t ShiftAmount, int Length){
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byte1 = byte1 >> ShiftAmount;
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dst[Length-1] = byte1;
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}
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112
fpga/rvvidaemon/send-copy.c
Normal file
112
fpga/rvvidaemon/send-copy.c
Normal file
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@ -0,0 +1,112 @@
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/*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*/
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#include <arpa/inet.h>
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#include <linux/if_packet.h>
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <sys/ioctl.h>
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#include <sys/socket.h>
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#include <net/if.h>
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#include <netinet/ether.h>
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#define DEST_MAC0 0x43
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#define DEST_MAC1 0x68
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#define DEST_MAC2 0x11
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#define DEST_MAC3 0x11
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#define DEST_MAC4 0x02
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#define DEST_MAC5 0x45
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#define DEFAULT_IF "eth0"
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#define BUF_SIZ 1024
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int main(int argc, char *argv[])
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{
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int sockfd;
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struct ifreq if_idx;
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struct ifreq if_mac;
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int tx_len = 0;
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char sendbuf[BUF_SIZ];
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struct ether_header *eh = (struct ether_header *) sendbuf;
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struct iphdr *iph = (struct iphdr *) (sendbuf + sizeof(struct ether_header));
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struct sockaddr_ll socket_address;
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char ifName[IFNAMSIZ];
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/* Get interface name */
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if (argc > 1)
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strcpy(ifName, argv[1]);
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else
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strcpy(ifName, DEFAULT_IF);
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/* Open RAW socket to send on */
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if ((sockfd = socket(AF_PACKET, SOCK_RAW, IPPROTO_RAW)) == -1) {
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perror("socket");
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}
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/* Get the index of the interface to send on */
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memset(&if_idx, 0, sizeof(struct ifreq));
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strncpy(if_idx.ifr_name, ifName, IFNAMSIZ-1);
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if (ioctl(sockfd, SIOCGIFINDEX, &if_idx) < 0)
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perror("SIOCGIFINDEX");
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/* Get the MAC address of the interface to send on */
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memset(&if_mac, 0, sizeof(struct ifreq));
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strncpy(if_mac.ifr_name, ifName, IFNAMSIZ-1);
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if (ioctl(sockfd, SIOCGIFHWADDR, &if_mac) < 0)
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perror("SIOCGIFHWADDR");
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/* Construct the Ethernet header */
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memset(sendbuf, 0, BUF_SIZ);
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/* Ethernet header */
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eh->ether_shost[0] = ((uint8_t *)&if_mac.ifr_hwaddr.sa_data)[0];
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eh->ether_shost[1] = ((uint8_t *)&if_mac.ifr_hwaddr.sa_data)[1];
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eh->ether_shost[2] = ((uint8_t *)&if_mac.ifr_hwaddr.sa_data)[2];
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eh->ether_shost[3] = ((uint8_t *)&if_mac.ifr_hwaddr.sa_data)[3];
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eh->ether_shost[4] = ((uint8_t *)&if_mac.ifr_hwaddr.sa_data)[4];
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eh->ether_shost[5] = ((uint8_t *)&if_mac.ifr_hwaddr.sa_data)[5];
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eh->ether_dhost[0] = DEST_MAC0;
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eh->ether_dhost[1] = DEST_MAC1;
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eh->ether_dhost[2] = DEST_MAC2;
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eh->ether_dhost[3] = DEST_MAC3;
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eh->ether_dhost[4] = DEST_MAC4;
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eh->ether_dhost[5] = DEST_MAC5;
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/* Ethertype field */
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eh->ether_type = htons(ETH_P_IP);
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tx_len += sizeof(struct ether_header);
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/* Packet data */
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sendbuf[tx_len++] = 0xde;
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sendbuf[tx_len++] = 0xad;
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sendbuf[tx_len++] = 0xbe;
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sendbuf[tx_len++] = 0xef;
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/* Index of the network device */
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socket_address.sll_ifindex = if_idx.ifr_ifindex;
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/* Address length*/
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socket_address.sll_halen = ETH_ALEN;
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/* Destination MAC */
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socket_address.sll_addr[0] = DEST_MAC0;
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socket_address.sll_addr[1] = DEST_MAC1;
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socket_address.sll_addr[2] = DEST_MAC2;
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socket_address.sll_addr[3] = DEST_MAC3;
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socket_address.sll_addr[4] = DEST_MAC4;
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socket_address.sll_addr[5] = DEST_MAC5;
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int i;
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printf("buffer: ");
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for(i=0;i<tx_len;i++){
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printf("%02hhx ", sendbuf[i]);
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}
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printf("\n");
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/* Send packet */
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if (sendto(sockfd, sendbuf, tx_len, 0, (struct sockaddr*)&socket_address, sizeof(struct sockaddr_ll)) < 0)
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printf("Send failed\n");
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printf("send success!\n");
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return 0;
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}
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