// PSL thread loop
static void *_psl_loop(void *ptr)
{
struct psl *psl = (struct psl *)ptr;
struct cmd_event *event, *temp;
int events, i, stopped, reset;
uint8_t ack = PSLSE_DETACH;
stopped = 1;
pthread_mutex_lock(psl->lock);
while (psl->state != PSLSE_DONE) {
// idle_cycles continues to generate clock cycles for some
// time after the AFU has gone idle. Eventually clocks will
// not be presented to an idle AFU to keep simulation
// waveforms from getting huge with no activity cycles.
if (psl->state != PSLSE_IDLE) {
psl->idle_cycles = PSL_IDLE_CYCLES;
if (stopped)
info_msg("Clocking %s", psl->name);
fflush(stdout);
stopped = 0;
}
if (psl->idle_cycles) {
// Clock AFU
psl_signal_afu_model(psl->afu_event);
// Check for events from AFU
events = psl_get_afu_events(psl->afu_event);
// Error on socket
if (events < 0) {
warn_msg("Lost connection with AFU");
break;
}
// Handle events from AFU
if (events > 0)
_handle_afu(psl);
// Drive events to AFU
send_job(psl->job);
send_mmio(psl->mmio);
if (psl->mmio->list == NULL)
psl->idle_cycles--;
} else {
if (!stopped)
info_msg("Stopping clocks to %s", psl->name);
stopped = 1;
lock_delay(psl->lock);
}
// Skip client section if AFU descriptor hasn't been read yet
if (psl->client == NULL) {
lock_delay(psl->lock);
continue;
}
// Check for event from application
reset = 0;
for (i = 0; i < psl->max_clients; i++) {
if (psl->client[i] == NULL)
continue;
if ((psl->client[i]->state == CLIENT_NONE) &&
(psl->client[i]->idle_cycles == 0)) {
put_bytes(psl->client[i]->fd, 1, &ack,
psl->dbg_fp, psl->dbg_id,
psl->client[i]->context);
_free(psl, psl->client[i]);
psl->client[i] = NULL;
reset = 1;
continue;
}
if (psl->state == PSLSE_RESET)
continue;
_handle_client(psl, psl->client[i]);
if (psl->client[i]->idle_cycles) {
psl->client[i]->idle_cycles--;
}
if (client_cmd(psl->cmd, psl->client[i])) {
psl->client[i]->idle_cycles = PSL_IDLE_CYCLES;
}
}
// Send reset to AFU
if (reset == 1) {
psl->cmd->buffer_read = NULL;
event = psl->cmd->list;
while (event != NULL) {
if (reset) {
warn_msg
("Client dropped context before AFU completed");
reset = 0;
}
warn_msg("Dumping command tag=0x%02x",
event->tag);
if (event->data) {
free(event->data);
}
if (event->parity) {
free(event->parity);
}
temp = event;
event = event->_next;
free(temp);
}
psl->cmd->list = NULL;
info_msg("Sending reset to AFU");
add_job(psl->job, PSL_JOB_RESET, 0L);
}
lock_delay(psl->lock);
}
// Disconnect clients
for (i = 0; i < psl->max_clients; i++) {
if ((psl->client != NULL) && (psl->client[i] != NULL)) {
// FIXME: Send warning to clients first?
info_msg("Disconnecting %s context %d", psl->name,
psl->client[i]->context);
close_socket(&(psl->client[i]->fd));
}
}
// DEBUG
debug_afu_drop(psl->dbg_fp, psl->dbg_id);
// Disconnect from simulator, free memory and shut down thread
info_msg("Disconnecting %s @ %s:%d", psl->name, psl->host, psl->port);
if (psl->client)
free(psl->client);
if (psl->_prev)
psl->_prev->_next = psl->_next;
if (psl->_next)
psl->_next->_prev = psl->_prev;
if (psl->cmd) {
free(psl->cmd);
}
if (psl->job) {
free(psl->job);
}
if (psl->mmio) {
free(psl->mmio);
}
if (psl->host)
free(psl->host);
if (psl->afu_event) {
psl_close_afu_event(psl->afu_event);
free(psl->afu_event);
}
if (psl->name)
free(psl->name);
if (*(psl->head) == psl)
*(psl->head) = psl->_next;
pthread_mutex_unlock(psl->lock);
free(psl);
pthread_exit(NULL);
}
// PSL thread loop
static void *_psl_loop(void *ptr)
{
struct psl *psl = (struct psl *)ptr;
struct cmd_event *event, *temp;
int events, i, stopped, reset;
uint8_t ack = PSLSE_DETACH;
stopped = 1;
pthread_mutex_lock(psl->lock);
while (psl->state != PSLSE_DONE) {
// idle_cycles continues to generate clock cycles for some
// time after the AFU has gone idle. Eventually clocks will
// not be presented to an idle AFU to keep simulation
// waveforms from getting huge with no activity cycles.
if (psl->state != PSLSE_IDLE) {
// if we have clients or we are in the reset state, refresh idle_cycles
// so that the afu clock will not be allowed to stop to save afu event simulator cycles
if ((psl->attached_clients > 0) || (psl->state == PSLSE_RESET)) {
psl->idle_cycles = PSL_IDLE_CYCLES;
if (stopped)
info_msg("Clocking %s", psl->name);
fflush(stdout);
stopped = 0;
}
}
if (psl->idle_cycles) {
// Clock AFU
//printf("before psl_signal_afu_model in psl_loop \n");
psl_signal_afu_model(psl->afu_event);
// Check for events from AFU
events = psl_get_afu_events(psl->afu_event);
//printf("after psl_get_afu_events, events is 0x%3x \n", events);
// Error on socket
if (events < 0) {
warn_msg("Lost connection with AFU");
break;
}
// Handle events from AFU
if (events > 0)
_handle_afu(psl);
// Drive events to AFU
send_job(psl->job);
send_pe(psl->job);
send_mmio(psl->mmio);
if (psl->mmio->list == NULL)
psl->idle_cycles--;
} else {
if (!stopped)
info_msg("Stopping clocks to %s", psl->name);
stopped = 1;
lock_delay(psl->lock);
}
// Skip client section if AFU descriptor hasn't been read yet
if (psl->client == NULL) {
lock_delay(psl->lock);
continue;
}
// Check for event from application
reset = 0;
for (i = 0; i < psl->max_clients; i++) {
if (psl->client[i] == NULL)
continue;
if ((psl->client[i]->type == 'd') &&
(psl->client[i]->state == CLIENT_NONE) &&
(psl->client[i]->idle_cycles == 0)) {
// this was the old way of detaching a dedicated process app/afu pair
// we get the detach message, drop the client, and wait for idle cycle to get to 0
put_bytes(psl->client[i]->fd, 1, &ack,
psl->dbg_fp, psl->dbg_id,
psl->client[i]->context);
_free(psl, psl->client[i]);
psl->client[i] = NULL; // aha - this is how we only called _free once the old way
// why do we not free client[i]?
// because this was a short cut pointer
// the *real* client point is in client_list in pslse
reset = 1;
// for m/s devices we need to do this differently and not send a reset...
// _handle_client - creates the llcmd's to term and remove
// send_pe - sends the llcmd pe's to afu one at a time
// _handle_afu calls _handle_aux2
// _handle_aux2 finishes the llcmd pe's when jcack is asserted by afu
// when the remove llcmd is processed, we should put_bytes, _free and set client[i] to NULL
continue;
}
if (psl->state == PSLSE_RESET)
continue;
_handle_client(psl, psl->client[i]);
if (psl->client[i]->idle_cycles) {
psl->client[i]->idle_cycles--;
}
if (client_cmd(psl->cmd, psl->client[i])) {
psl->client[i]->idle_cycles = PSL_IDLE_CYCLES;
}
}
// Send reset to AFU
if (reset == 1) {
psl->cmd->buffer_read = NULL;
event = psl->cmd->list;
while (event != NULL) {
if (reset) {
warn_msg
("Client dropped context before AFU completed");
reset = 0;
}
info_msg("Dumping command tag=0x%02x",
event->tag);
#ifdef PSL9
info_msg("Dumping itag=0x%02x utag=0x%02x type=0x%02x state=0x%02x",
event->itag, event->utag, event->type, event->state);
#endif
if (event->data) {
free(event->data);
}
if (event->parity) {
free(event->parity);
}
temp = event;
event = event->_next;
free(temp);
}
psl->cmd->list = NULL;
info_msg("Sending reset to AFU");
add_job(psl->job, PSL_JOB_RESET, 0L);
}
lock_delay(psl->lock);
}
// Disconnect clients
for (i = 0; i < psl->max_clients; i++) {
if ((psl->client != NULL) && (psl->client[i] != NULL)) {
// FIXME: Send warning to clients first?
info_msg("Disconnecting %s context %d", psl->name,
psl->client[i]->context);
close_socket(&(psl->client[i]->fd));
}
}
// DEBUG
debug_afu_drop(psl->dbg_fp, psl->dbg_id);
// Disconnect from simulator, free memory and shut down thread
info_msg("Disconnecting %s @ %s:%d", psl->name, psl->host, psl->port);
if (psl->client)
free(psl->client);
if (psl->_prev)
psl->_prev->_next = psl->_next;
if (psl->_next)
psl->_next->_prev = psl->_prev;
if (psl->cmd) {
free(psl->cmd);
}
if (psl->job) {
free(psl->job);
}
if (psl->mmio) {
free(psl->mmio);
}
if (psl->host)
free(psl->host);
if (psl->afu_event) {
psl_close_afu_event(psl->afu_event);
free(psl->afu_event);
}
if (psl->name)
free(psl->name);
if (*(psl->head) == psl)
*(psl->head) = psl->_next;
pthread_mutex_unlock(psl->lock);
free(psl);
pthread_exit(NULL);
}