[dpdk-dev,09/15] event/sw: add support for linking queues to ports
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Commit Message
From: Bruce Richardson <bruce.richardson@intel.com>
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Signed-off-by: Harry van Haaren <harry.van.haaren@intel.com>
---
drivers/event/sw/sw_evdev.c | 67 +++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 67 insertions(+)
@@ -51,6 +51,71 @@ static void
sw_info_get(struct rte_eventdev *dev, struct rte_event_dev_info *info);
static int
+sw_port_link(void *port, const uint8_t queues[], const uint8_t priorities[],
+ uint16_t num)
+{
+ struct sw_port *p = (void *)port;
+ struct sw_evdev *sw = p->sw;
+ int i;
+
+ RTE_SET_USED(priorities);
+ for (i = 0; i < num; i++) {
+ struct sw_qid *q = &sw->qids[queues[i]];
+
+ /* check for qid map overflow */
+ if (q->cq_num_mapped_cqs >= RTE_DIM(q->cq_map))
+ break;
+
+ if (p->is_directed && p->num_qids_mapped > 0)
+ break;
+
+ if (q->type == RTE_SCHED_TYPE_DIRECT) {
+ /* check directed qids only map to one port */
+ if (p->num_qids_mapped > 0)
+ break;
+ /* check port only takes a directed flow */
+ if (num > 1)
+ break;
+
+ p->is_directed = 1;
+ p->num_qids_mapped = 1;
+ } else if (q->type == RTE_SCHED_TYPE_ORDERED) {
+ p->num_ordered_qids++;
+ p->num_qids_mapped++;
+ } else if (q->type == RTE_SCHED_TYPE_ATOMIC) {
+ p->num_qids_mapped++;
+ }
+
+ q->cq_map[q->cq_num_mapped_cqs] = p->id;
+ rte_smp_wmb();
+ q->cq_num_mapped_cqs++;
+ }
+ return i;
+}
+
+static int
+sw_port_unlink(void *port, uint8_t queues[], uint16_t nb_unlinks)
+{
+ struct sw_port *p = (void *)port;
+ struct sw_evdev *sw = p->sw;
+ unsigned int i, j;
+
+ int unlinked = 0;
+ for (i = 0; i < nb_unlinks; i++) {
+ struct sw_qid *q = &sw->qids[queues[i]];
+ for (j = 0; j < q->cq_num_mapped_cqs; j++)
+ if (q->cq_map[j] == p->id) {
+ q->cq_map[j] = q->cq_map[q->cq_num_mapped_cqs - 1];
+ rte_smp_wmb();
+ q->cq_num_mapped_cqs--;
+ unlinked++;
+ continue;
+ }
+ }
+ return unlinked;
+}
+
+static int
sw_port_setup(struct rte_eventdev *dev, uint8_t port_id,
const struct rte_event_port_conf *conf)
{
@@ -368,6 +433,8 @@ sw_probe(const char *name, const char *params)
.port_def_conf = sw_port_def_conf,
.port_setup = sw_port_setup,
.port_release = sw_port_release,
+ .port_link = sw_port_link,
+ .port_unlink = sw_port_unlink,
};
static const char *const args[] = { NUMA_NODE_ARG, SCHED_QUANTA_ARG, NULL };