#include <rte_dpaa_bus.h>
#include <rte_dpaa_logs.h>
#include <rte_cycles.h>
+#include <rte_kvargs.h>
#include <dpaa_ethdev.h>
#include "dpaa_eventdev.h"
* 1 Eventdev can have N Eventqueue
*/
+#define DISABLE_INTR_MODE "disable_intr"
+
static int
dpaa_event_dequeue_timeout_ticks(struct rte_eventdev *dev, uint64_t ns,
uint64_t *timeout_ticks)
{
- uint64_t cycles_per_second;
-
EVENTDEV_INIT_FUNC_TRACE();
RTE_SET_USED(dev);
+ uint64_t cycles_per_second;
+
cycles_per_second = rte_get_timer_hz();
- *timeout_ticks = ns * (cycles_per_second / NS_PER_S);
+ *timeout_ticks = (ns * cycles_per_second) / NS_PER_S;
return 0;
}
+static int
+dpaa_event_dequeue_timeout_ticks_intr(struct rte_eventdev *dev, uint64_t ns,
+ uint64_t *timeout_ticks)
+{
+ RTE_SET_USED(dev);
+
+ *timeout_ticks = ns/1000;
+ return 0;
+}
+
static void
dpaa_eventq_portal_add(u16 ch_id)
{
return dpaa_event_enqueue_burst(port, ev, 1);
}
+static void drain_4_bytes(int fd, fd_set *fdset)
+{
+ if (FD_ISSET(fd, fdset)) {
+ /* drain 4 bytes */
+ uint32_t junk;
+ ssize_t sjunk = read(qman_thread_fd(), &junk, sizeof(junk));
+ if (sjunk != sizeof(junk))
+ DPAA_EVENTDEV_ERR("UIO irq read error");
+ }
+}
+
+static inline int
+dpaa_event_dequeue_wait(uint64_t timeout_ticks)
+{
+ int fd_qman, nfds;
+ int ret;
+ fd_set readset;
+
+ /* Go into (and back out of) IRQ mode for each select,
+ * it simplifies exit-path considerations and other
+ * potential nastiness.
+ */
+ struct timeval tv = {
+ .tv_sec = timeout_ticks / 1000000,
+ .tv_usec = timeout_ticks % 1000000
+ };
+
+ fd_qman = qman_thread_fd();
+ nfds = fd_qman + 1;
+ FD_ZERO(&readset);
+ FD_SET(fd_qman, &readset);
+
+ qman_irqsource_add(QM_PIRQ_DQRI);
+
+ ret = select(nfds, &readset, NULL, NULL, &tv);
+ if (ret < 0)
+ return ret;
+ /* Calling irqsource_remove() prior to thread_irq()
+ * means thread_irq() will not process whatever caused
+ * the interrupts, however it does ensure that, once
+ * thread_irq() re-enables interrupts, they won't fire
+ * again immediately.
+ */
+ qman_irqsource_remove(~0);
+ drain_4_bytes(fd_qman, &readset);
+ qman_thread_irq();
+
+ return ret;
+}
+
static uint16_t
dpaa_event_dequeue_burst(void *port, struct rte_event ev[],
uint16_t nb_events, uint64_t timeout_ticks)
int ret;
u16 ch_id;
void *buffers[8];
- u32 num_frames, i;
- uint64_t wait_time, cur_ticks, start_ticks;
+ u32 num_frames, i, irq = 0;
+ uint64_t cur_ticks = 0, wait_time_ticks = 0;
struct dpaa_port *portal = (struct dpaa_port *)port;
struct rte_mbuf *mbuf;
}
DPAA_PER_LCORE_DQRR_HELD = 0;
- if (portal->timeout == DPAA_EVENT_PORT_DEQUEUE_TIMEOUT_INVALID)
- wait_time = timeout_ticks;
+ if (timeout_ticks)
+ wait_time_ticks = timeout_ticks;
else
- wait_time = portal->timeout;
+ wait_time_ticks = portal->timeout_us;
- /* Lets dequeue the frames */
- start_ticks = rte_get_timer_cycles();
- wait_time += start_ticks;
+ wait_time_ticks += rte_get_timer_cycles();
do {
+ /* Lets dequeue the frames */
num_frames = qman_portal_dequeue(ev, nb_events, buffers);
- if (num_frames != 0)
+ if (irq)
+ irq = 0;
+ if (num_frames)
break;
cur_ticks = rte_get_timer_cycles();
- } while (cur_ticks < wait_time);
+ } while (cur_ticks < wait_time_ticks);
return num_frames;
}
return dpaa_event_dequeue_burst(port, ev, 1, timeout_ticks);
}
+static uint16_t
+dpaa_event_dequeue_burst_intr(void *port, struct rte_event ev[],
+ uint16_t nb_events, uint64_t timeout_ticks)
+{
+ int ret;
+ u16 ch_id;
+ void *buffers[8];
+ u32 num_frames, i, irq = 0;
+ uint64_t cur_ticks = 0, wait_time_ticks = 0;
+ struct dpaa_port *portal = (struct dpaa_port *)port;
+ struct rte_mbuf *mbuf;
+
+ if (unlikely(!RTE_PER_LCORE(dpaa_io))) {
+ /* Affine current thread context to a qman portal */
+ ret = rte_dpaa_portal_init((void *)0);
+ if (ret) {
+ DPAA_EVENTDEV_ERR("Unable to initialize portal");
+ return ret;
+ }
+ }
+
+ if (unlikely(!portal->is_port_linked)) {
+ /*
+ * Affine event queue for current thread context
+ * to a qman portal.
+ */
+ for (i = 0; i < portal->num_linked_evq; i++) {
+ ch_id = portal->evq_info[i].ch_id;
+ dpaa_eventq_portal_add(ch_id);
+ }
+ portal->is_port_linked = true;
+ }
+
+ /* Check if there are atomic contexts to be released */
+ i = 0;
+ while (DPAA_PER_LCORE_DQRR_SIZE) {
+ if (DPAA_PER_LCORE_DQRR_HELD & (1 << i)) {
+ qman_dca_index(i, 0);
+ mbuf = DPAA_PER_LCORE_DQRR_MBUF(i);
+ mbuf->seqn = DPAA_INVALID_MBUF_SEQN;
+ DPAA_PER_LCORE_DQRR_HELD &= ~(1 << i);
+ DPAA_PER_LCORE_DQRR_SIZE--;
+ }
+ i++;
+ }
+ DPAA_PER_LCORE_DQRR_HELD = 0;
+
+ if (timeout_ticks)
+ wait_time_ticks = timeout_ticks;
+ else
+ wait_time_ticks = portal->timeout_us;
+
+ do {
+ /* Lets dequeue the frames */
+ num_frames = qman_portal_dequeue(ev, nb_events, buffers);
+ if (irq)
+ irq = 0;
+ if (num_frames)
+ break;
+ if (wait_time_ticks) { /* wait for time */
+ if (dpaa_event_dequeue_wait(wait_time_ticks) > 0) {
+ irq = 1;
+ continue;
+ }
+ break; /* no event after waiting */
+ }
+ cur_ticks = rte_get_timer_cycles();
+ } while (cur_ticks < wait_time_ticks);
+
+ return num_frames;
+}
+
+static uint16_t
+dpaa_event_dequeue_intr(void *port,
+ struct rte_event *ev,
+ uint64_t timeout_ticks)
+{
+ return dpaa_event_dequeue_burst_intr(port, ev, 1, timeout_ticks);
+}
+
static void
dpaa_event_dev_info_get(struct rte_eventdev *dev,
struct rte_event_dev_info *dev_info)
dev_info->max_dequeue_timeout_ns =
DPAA_EVENT_MAX_DEQUEUE_TIMEOUT;
dev_info->dequeue_timeout_ns =
- DPAA_EVENT_MIN_DEQUEUE_TIMEOUT;
+ DPAA_EVENT_PORT_DEQUEUE_TIMEOUT_NS;
dev_info->max_event_queues =
DPAA_EVENT_MAX_QUEUES;
dev_info->max_event_queue_flows =
priv->nb_event_port_enqueue_depth = conf->nb_event_port_enqueue_depth;
priv->event_dev_cfg = conf->event_dev_cfg;
- /* Check dequeue timeout method is per dequeue or global */
- if (priv->event_dev_cfg & RTE_EVENT_DEV_CFG_PER_DEQUEUE_TIMEOUT) {
- /*
- * Use timeout value as given in dequeue operation.
- * So invalidating this timetout value.
- */
- priv->dequeue_timeout_ns = 0;
- }
-
ch_id = rte_malloc("dpaa-channels",
sizeof(uint32_t) * priv->nb_event_queues,
RTE_CACHE_LINE_SIZE);
/* Lets prepare event ports */
memset(&priv->ports[0], 0,
sizeof(struct dpaa_port) * priv->nb_event_ports);
+
+ /* Check dequeue timeout method is per dequeue or global */
if (priv->event_dev_cfg & RTE_EVENT_DEV_CFG_PER_DEQUEUE_TIMEOUT) {
- for (i = 0; i < priv->nb_event_ports; i++) {
- priv->ports[i].timeout =
- DPAA_EVENT_PORT_DEQUEUE_TIMEOUT_INVALID;
- }
- } else if (priv->dequeue_timeout_ns == 0) {
- for (i = 0; i < priv->nb_event_ports; i++) {
- dpaa_event_dequeue_timeout_ticks(NULL,
- DPAA_EVENT_PORT_DEQUEUE_TIMEOUT_NS,
- &priv->ports[i].timeout);
- }
+ /*
+ * Use timeout value as given in dequeue operation.
+ * So invalidating this timeout value.
+ */
+ priv->dequeue_timeout_ns = 0;
+
+ } else if (conf->dequeue_timeout_ns == 0) {
+ priv->dequeue_timeout_ns = DPAA_EVENT_PORT_DEQUEUE_TIMEOUT_NS;
} else {
- for (i = 0; i < priv->nb_event_ports; i++) {
- dpaa_event_dequeue_timeout_ticks(NULL,
- priv->dequeue_timeout_ns,
- &priv->ports[i].timeout);
+ priv->dequeue_timeout_ns = conf->dequeue_timeout_ns;
+ }
+
+ for (i = 0; i < priv->nb_event_ports; i++) {
+ if (priv->intr_mode) {
+ priv->ports[i].timeout_us =
+ priv->dequeue_timeout_ns/1000;
+ } else {
+ uint64_t cycles_per_second;
+
+ cycles_per_second = rte_get_timer_hz();
+ priv->ports[i].timeout_us =
+ (priv->dequeue_timeout_ns * cycles_per_second)
+ / NS_PER_S;
}
}
+
/*
* TODO: Currently portals are affined with threads. Maximum threads
* can be created equals to number of lcore.
event_queue->event_port = NULL;
}
- event_port->num_linked_evq = event_port->num_linked_evq - i;
+ if (event_port->num_linked_evq)
+ event_port->num_linked_evq = event_port->num_linked_evq - i;
return (int)i;
}
.eth_rx_adapter_stop = dpaa_event_eth_rx_adapter_stop,
};
+static int flag_check_handler(__rte_unused const char *key,
+ const char *value, __rte_unused void *opaque)
+{
+ if (strcmp(value, "1"))
+ return -1;
+
+ return 0;
+}
+
+static int
+dpaa_event_check_flags(const char *params)
+{
+ struct rte_kvargs *kvlist;
+
+ if (params == NULL || params[0] == '\0')
+ return 0;
+
+ kvlist = rte_kvargs_parse(params, NULL);
+ if (kvlist == NULL)
+ return 0;
+
+ if (!rte_kvargs_count(kvlist, DISABLE_INTR_MODE)) {
+ rte_kvargs_free(kvlist);
+ return 0;
+ }
+ /* INTR MODE is disabled when there's key-value pair: disable_intr = 1*/
+ if (rte_kvargs_process(kvlist, DISABLE_INTR_MODE,
+ flag_check_handler, NULL) < 0) {
+ rte_kvargs_free(kvlist);
+ return 0;
+ }
+ rte_kvargs_free(kvlist);
+
+ return 1;
+}
+
static int
-dpaa_event_dev_create(const char *name)
+dpaa_event_dev_create(const char *name, const char *params)
{
struct rte_eventdev *eventdev;
struct dpaa_eventdev *priv;
DPAA_EVENTDEV_ERR("Failed to create eventdev vdev %s", name);
goto fail;
}
+ priv = eventdev->data->dev_private;
eventdev->dev_ops = &dpaa_eventdev_ops;
eventdev->enqueue = dpaa_event_enqueue;
eventdev->enqueue_burst = dpaa_event_enqueue_burst;
- eventdev->dequeue = dpaa_event_dequeue;
- eventdev->dequeue_burst = dpaa_event_dequeue_burst;
+
+ if (dpaa_event_check_flags(params)) {
+ eventdev->dequeue = dpaa_event_dequeue;
+ eventdev->dequeue_burst = dpaa_event_dequeue_burst;
+ } else {
+ priv->intr_mode = 1;
+ eventdev->dev_ops->timeout_ticks =
+ dpaa_event_dequeue_timeout_ticks_intr;
+ eventdev->dequeue = dpaa_event_dequeue_intr;
+ eventdev->dequeue_burst = dpaa_event_dequeue_burst_intr;
+ }
/* For secondary processes, the primary has done all the work */
if (rte_eal_process_type() != RTE_PROC_PRIMARY)
return 0;
- priv = eventdev->data->dev_private;
priv->max_event_queues = DPAA_EVENT_MAX_QUEUES;
return 0;
dpaa_event_dev_probe(struct rte_vdev_device *vdev)
{
const char *name;
+ const char *params;
name = rte_vdev_device_name(vdev);
DPAA_EVENTDEV_INFO("Initializing %s", name);
- return dpaa_event_dev_create(name);
+ params = rte_vdev_device_args(vdev);
+
+ return dpaa_event_dev_create(name, params);
}
static int
};
RTE_PMD_REGISTER_VDEV(EVENTDEV_NAME_DPAA_PMD, vdev_eventdev_dpaa_pmd);
+RTE_PMD_REGISTER_PARAM_STRING(EVENTDEV_NAME_DPAA_PMD,
+ DISABLE_INTR_MODE "=<int>");
git.droids-corp.org / dpdk.git / commitdiff