static void update_umad_port_cache(struct oib_port *port)
{
int rc;
struct ibv_async_event event;
ibv_get_async_event(port->verbs_ctx, &event);
ibv_ack_async_event(&event);
switch (event.event_type) {
case IBV_EVENT_PORT_ACTIVE:
case IBV_EVENT_PORT_ERR:
case IBV_EVENT_LID_CHANGE:
case IBV_EVENT_PKEY_CHANGE:
rc = cache_port_details(port);
if (rc != 0)
OUTPUT_ERROR ("umad port cache data invalid!\n");
break;
case IBV_EVENT_SM_CHANGE:
case IBV_EVENT_CLIENT_REREGISTER:
if (reregister_traps(port))
OUTPUT_ERROR("failed to reregister traps.\n");
rc = cache_port_details(port);
if (rc != 0)
OUTPUT_ERROR ("umad port cache data invalid!\n");
break;
case IBV_EVENT_CQ_ERR:
OUTPUT_ERROR("got IBV_EVENT_CQ_ERR\n");
break;
default:
break;
}
}
/**
* Link status handler.
*
* @param priv
* Pointer to private structure.
* @param dev
* Pointer to the rte_eth_dev structure.
*
* @return
* Nonzero if the callback process can be called immediately.
*/
static int
priv_dev_link_status_handler(struct priv *priv, struct rte_eth_dev *dev)
{
struct ibv_async_event event;
int port_change = 0;
int ret = 0;
/* Read all message and acknowledge them. */
for (;;) {
if (ibv_get_async_event(priv->ctx, &event))
break;
if (event.event_type == IBV_EVENT_PORT_ACTIVE ||
event.event_type == IBV_EVENT_PORT_ERR)
port_change = 1;
else
DEBUG("event type %d on port %d not handled",
event.event_type, event.element.port_num);
ibv_ack_async_event(&event);
}
if (port_change ^ priv->pending_alarm) {
struct rte_eth_link *link = &dev->data->dev_link;
priv->pending_alarm = 0;
mlx5_link_update_unlocked(dev, 0);
if (((link->link_speed == 0) && link->link_status) ||
((link->link_speed != 0) && !link->link_status)) {
/* Inconsistent status, check again later. */
priv->pending_alarm = 1;
rte_eal_alarm_set(MLX5_ALARM_TIMEOUT_US,
mlx5_dev_link_status_handler,
dev);
} else
ret = 1;
}
return ret;
}
int __ibv_get_async_event_1_0(struct ibv_context_1_0 *context,
struct ibv_async_event *event)
{
int ret;
ret = ibv_get_async_event(context->real_context, event);
if (ret)
return ret;
switch (event->event_type) {
case IBV_EVENT_CQ_ERR:
event->element.cq = event->element.cq->cq_context;
break;
case IBV_EVENT_QP_FATAL:
case IBV_EVENT_QP_REQ_ERR:
case IBV_EVENT_QP_ACCESS_ERR:
case IBV_EVENT_COMM_EST:
case IBV_EVENT_SQ_DRAINED:
case IBV_EVENT_PATH_MIG:
case IBV_EVENT_PATH_MIG_ERR:
case IBV_EVENT_QP_LAST_WQE_REACHED:
event->element.qp = event->element.qp->qp_context;
break;
case IBV_EVENT_SRQ_ERR:
case IBV_EVENT_SRQ_LIMIT_REACHED:
event->element.srq = event->element.srq->srq_context;
break;
default:
break;
}
return ret;
}
/* Function handle async device events */
static int btl_openib_async_deviceh(struct mca_btl_openib_async_poll *devices_poll, int index,
opal_list_t *ignore_qp_err_list)
{
int j;
mca_btl_openib_device_t *device = NULL;
struct ibv_async_event event;
bool xrc_event = false;
int event_type;
/* We need to find correct device and process this event */
for (j=0; j < mca_btl_openib_component.ib_num_btls; j++) {
if (mca_btl_openib_component.openib_btls[j]->device->ib_dev_context->async_fd ==
devices_poll->async_pollfd[index].fd ) {
device = mca_btl_openib_component.openib_btls[j]->device;
break;
}
}
if (NULL != device) {
if (ibv_get_async_event((struct ibv_context *)device->ib_dev_context,&event) < 0) {
if (EWOULDBLOCK == errno) {
/* No event found ?
* It was handled by somebody other */
return OPAL_SUCCESS;
} else {
BTL_ERROR(("Failed to get async event"));
return OPAL_ERROR;
}
}
event_type = event.event_type;
#if HAVE_XRC
/* is it XRC event ?*/
if (IBV_XRC_QP_EVENT_FLAG & event.event_type) {
xrc_event = true;
/* Clean the bitnd handel as usual */
event_type ^= IBV_XRC_QP_EVENT_FLAG;
}
#endif
switch(event_type) {
case IBV_EVENT_PATH_MIG:
BTL_ERROR(("Alternative path migration event reported"));
if (APM_ENABLED) {
BTL_ERROR(("Trying to find additional path..."));
if (!xrc_event)
mca_btl_openib_load_apm(event.element.qp,
qp2endpoint(event.element.qp, device));
#if HAVE_XRC
else
mca_btl_openib_load_apm_xrc_rcv(event.element.xrc_qp_num,
xrc_qp2endpoint(event.element.xrc_qp_num, device));
#endif
}
break;
case IBV_EVENT_DEVICE_FATAL:
/* Set the flag to fatal */
device->got_fatal_event = true;
/* It is not critical to protect the counter */
OPAL_THREAD_ADD32(&mca_btl_openib_component.error_counter, 1);
case IBV_EVENT_CQ_ERR:
case IBV_EVENT_QP_FATAL:
if (event_type == IBV_EVENT_QP_FATAL) {
opal_list_item_t *item;
mca_btl_openib_qp_list *qp_item;
bool in_ignore_list = false;
BTL_VERBOSE(("QP is in err state %p", (void *)event.element.qp));
/* look through ignore list */
for (item = opal_list_get_first(ignore_qp_err_list);
item != opal_list_get_end(ignore_qp_err_list);
item = opal_list_get_next(item)) {
qp_item = (mca_btl_openib_qp_list *)item;
if (qp_item->qp == event.element.qp) {
BTL_VERBOSE(("QP %p is in error ignore list",
(void *)event.element.qp));
in_ignore_list = true;
break;
}
}
if (in_ignore_list)
break;
}
case IBV_EVENT_QP_REQ_ERR:
case IBV_EVENT_QP_ACCESS_ERR:
case IBV_EVENT_PATH_MIG_ERR:
case IBV_EVENT_SRQ_ERR:
opal_show_help("help-mpi-btl-openib.txt", "of error event",
true,opal_proc_local_get()->proc_hostname, (int)getpid(),
event_type,
openib_event_to_str((enum ibv_event_type)event_type),
xrc_event ? "true" : "false");
break;
case IBV_EVENT_PORT_ERR:
opal_show_help("help-mpi-btl-openib.txt", "of error event",
true,opal_proc_local_get()->proc_hostname, (int)getpid(),
event_type,
openib_event_to_str((enum ibv_event_type)event_type),
xrc_event ? "true" : "false");
/* Set the flag to indicate port error */
device->got_port_event = true;
OPAL_THREAD_ADD32(&mca_btl_openib_component.error_counter, 1);
break;
case IBV_EVENT_COMM_EST:
case IBV_EVENT_PORT_ACTIVE:
case IBV_EVENT_SQ_DRAINED:
case IBV_EVENT_LID_CHANGE:
case IBV_EVENT_PKEY_CHANGE:
case IBV_EVENT_SM_CHANGE:
case IBV_EVENT_QP_LAST_WQE_REACHED:
#if HAVE_DECL_IBV_EVENT_CLIENT_REREGISTER
case IBV_EVENT_CLIENT_REREGISTER:
#endif
break;
/* The event is signaled when number of prepost receive WQEs is going
under predefined threshold - srq_limit */
case IBV_EVENT_SRQ_LIMIT_REACHED:
if(OPAL_SUCCESS !=
btl_openib_async_srq_limit_event(event.element.srq)) {
return OPAL_ERROR;
}
break;
default:
opal_show_help("help-mpi-btl-openib.txt", "of unknown event",
true,opal_proc_local_get()->proc_hostname, (int)getpid(),
event_type, xrc_event ? "true" : "false");
}
ibv_ack_async_event(&event);
} else {
/* if (device == NULL), then failed to locate the device!
This should never happen... */
BTL_ERROR(("Failed to find device with FD %d. "
"Fatal error, stoping asynch event thread",
devices_poll->async_pollfd[index].fd));
return OPAL_ERROR;
}
return OPAL_SUCCESS;
}
/* Function handle async device events */
static int btl_openib_async_deviceh(struct mca_btl_openib_async_poll *devices_poll, int index)
{
int j;
mca_btl_openib_device_t *device = NULL;
struct ibv_async_event event;
bool xrc_event = false;
int event_type;
/* We need to find correct device and process this event */
for (j=0; j < mca_btl_openib_component.ib_num_btls; j++) {
if (mca_btl_openib_component.openib_btls[j]->device->ib_dev_context->async_fd ==
devices_poll->async_pollfd[index].fd ) {
device = mca_btl_openib_component.openib_btls[j]->device;
break;
}
}
if (NULL != device) {
if (ibv_get_async_event((struct ibv_context *)device->ib_dev_context,&event) < 0) {
if (EWOULDBLOCK == errno) {
/* No event found ?
* It was handled by somebody other */
return OMPI_SUCCESS;
} else {
BTL_ERROR(("Failed to get async event"));
return OMPI_ERROR;
}
}
event_type = event.event_type;
#if HAVE_XRC
/* is it XRC event ?*/
if (IBV_XRC_QP_EVENT_FLAG & event.event_type) {
xrc_event = true;
/* Clean the bitnd handel as usual */
event_type ^= IBV_XRC_QP_EVENT_FLAG;
}
#endif
switch(event_type) {
case IBV_EVENT_PATH_MIG:
BTL_ERROR(("Alternative path migration event reported"));
if (APM_ENABLED) {
BTL_ERROR(("Trying to find additional path..."));
if (!xrc_event)
mca_btl_openib_load_apm(event.element.qp,
qp2endpoint(event.element.qp, device));
#if HAVE_XRC
else
mca_btl_openib_load_apm_xrc_rcv(event.element.xrc_qp_num,
xrc_qp2endpoint(event.element.xrc_qp_num, device));
#endif
}
break;
case IBV_EVENT_DEVICE_FATAL:
/* Set the flag to fatal */
device->got_fatal_event = true;
/* It is not critical to protect the counter */
OPAL_THREAD_ADD32(&mca_btl_openib_component.fatal_counter, 1);
case IBV_EVENT_CQ_ERR:
case IBV_EVENT_QP_FATAL:
case IBV_EVENT_QP_REQ_ERR:
case IBV_EVENT_QP_ACCESS_ERR:
case IBV_EVENT_PATH_MIG_ERR:
case IBV_EVENT_SRQ_ERR:
case IBV_EVENT_PORT_ERR:
orte_show_help("help-mpi-btl-openib.txt", "of error event",
true,orte_process_info.nodename, orte_process_info.pid,
event.event_type, openib_event_to_str(event.event_type),
xrc_event ? "true" : "false");
break;
case IBV_EVENT_COMM_EST:
case IBV_EVENT_PORT_ACTIVE:
case IBV_EVENT_SQ_DRAINED:
case IBV_EVENT_LID_CHANGE:
case IBV_EVENT_PKEY_CHANGE:
case IBV_EVENT_SM_CHANGE:
case IBV_EVENT_QP_LAST_WQE_REACHED:
#if HAVE_DECL_IBV_EVENT_CLIENT_REREGISTER
case IBV_EVENT_CLIENT_REREGISTER:
#endif
case IBV_EVENT_SRQ_LIMIT_REACHED:
break;
default:
orte_show_help("help-mpi-btl-openib.txt", "of unknown event",
true,orte_process_info.nodename, orte_process_info.pid,
event.event_type, xrc_event ? "true" : "false");
}
ibv_ack_async_event(&event);
} else {
/* if (device == NULL), then failed to locate the device!
This should never happen... */
BTL_ERROR(("Failed to find device with FD %d. "
"Fatal error, stoping asynch event thread",
devices_poll->async_pollfd[index].fd));
return OMPI_ERROR;
}
return OMPI_SUCCESS;
}
static int
mlx5_glue_get_async_event(struct ibv_context *context,
struct ibv_async_event *event)
{
return ibv_get_async_event(context, event);
}
int main(int argc, char *argv[])
{
char *device_name = NULL;
struct ibv_async_event event;
struct ibv_context *ctx;
int ret = 0;
/* parse command line options */
while (1) {
int c;
c = getopt(argc, argv, "d:h");
if (c == -1)
break;
switch (c) {
case 'd':
device_name = strdup(optarg);
if (!device_name) {
fprintf(stderr, "Error, failed to allocate memory for the device name\n");
return -1;
}
break;
case 'h':
usage(argv[0]);
exit(1);
default:
fprintf(stderr, "Bad command line was used\n\n");
usage(argv[0]);
exit(1);
}
}
if (!device_name) {
fprintf(stderr, "Error, the device name is mandatory\n");
return -1;
}
ctx = get_device_context(device_name);
if (!ctx) {
fprintf(stderr, "Error, the context of the device name '%s' could not be opened\n", device_name);
free(device_name);
return -1;
}
printf("Listening on events for the device '%s'\n", device_name);
while (1) {
/* wait for the next async event */
ret = ibv_get_async_event(ctx, &event);
if (ret) {
fprintf(stderr, "Error, ibv_get_async_event() failed\n");
goto out;
}
/* print the event */
print_async_event(ctx, &event);
/* ack the event */
ibv_ack_async_event(&event);
}
ret = 0;
out:
if (ibv_close_device(ctx)) {
fprintf(stderr, "Error, failed to close the context of the device '%s'\n", device_name);
return -1;
}
printf("The context of the device name '%s' was closed\n", device_name);
free(device_name);
return ret;
}
void *async_event_thread(void *ptr)
{
struct ibv_async_event event;
struct async_event_thread_context_t *aet_ctx = (struct async_event_thread_context_t *)ptr;
struct ibv_context *ibv_ctx = aet_ctx->ibv_ctx;
int rc;
DEBUG("async event thread started");
while (1) {
rc = ibv_get_async_event(ibv_ctx, &event);
if (rc) {
ERROR("ibv_get_async_event failed");
exit(1);
}
ibv_ack_async_event(&event);
switch (event.event_type) {
case IBV_EVENT_QP_FATAL:
case IBV_EVENT_QP_REQ_ERR:
case IBV_EVENT_QP_ACCESS_ERR:
case IBV_EVENT_COMM_EST:
case IBV_EVENT_SQ_DRAINED:
case IBV_EVENT_PATH_MIG:
case IBV_EVENT_PATH_MIG_ERR:
case IBV_EVENT_QP_LAST_WQE_REACHED:
DEBUG("Got QP async event. Type: %s(0x%x), QP handle: %p",
ibv_event_type_str(event.event_type),
event.event_type, event.element.qp);
break;
case IBV_EVENT_CQ_ERR:
DEBUG("Got CQ async event. Type: %s(0x%x), CQ handle: %p",
ibv_event_type_str(event.event_type),
event.event_type, event.element.cq);
break;
case IBV_EVENT_SRQ_ERR:
case IBV_EVENT_SRQ_LIMIT_REACHED:
DEBUG("Got SRQ async event. Type: %s(0x%x), SRQ handle: %p",
ibv_event_type_str(event.event_type),
event.event_type, event.element.srq);
break;
case IBV_EVENT_DEVICE_FATAL:
DEBUG("Got CA async event. Type: %s(0x%x)",
ibv_event_type_str(event.event_type), event.event_type);
break;
case IBV_EVENT_PORT_ACTIVE:
case IBV_EVENT_PORT_ERR:
case IBV_EVENT_LID_CHANGE:
case IBV_EVENT_PKEY_CHANGE:
case IBV_EVENT_SM_CHANGE:
DEBUG("Got Port async event. Type: %s(0x%x), Port number: %d",
ibv_event_type_str(event.event_type), event.event_type, event.element.port_num);
break;
default:
DEBUG("Got unexpected async event. Type: %s(0x%x)",
ibv_event_type_str(event.event_type), event.event_type);
}
if (event.event_type < MAX_ASYNC_EVENT_VALUE) {
continue;
#if 0
if (async_thread_data_p->expected_event_arr[event.event_type]) {
continue;
}
#endif
} else {
ERROR("The async event value %u is not supported by test", event.event_type);
}
return NULL;
}
}
