[dpdk-dev] [PATCH v2 15/28] sched: update pipe and tc queues prefetch
Jasvinder Singh
jasvinder.singh at intel.com
Tue Jun 25 17:32:04 CEST 2019
Update pipe and tc queues prefetch functions to allow
configuration flexiblity for pipe traffic classes and
queues, and subport level configuration of the pipe parameters.
Signed-off-by: Jasvinder Singh <jasvinder.singh at intel.com>
Signed-off-by: Abraham Tovar <abrahamx.tovar at intel.com>
Signed-off-by: Lukasz Krakowiak <lukaszx.krakowiak at intel.com>
---
lib/librte_sched/rte_sched.c | 41 ++++++++++++++++++++++--------------
1 file changed, 25 insertions(+), 16 deletions(-)
diff --git a/lib/librte_sched/rte_sched.c b/lib/librte_sched/rte_sched.c
index 382d9d929..00ee9e7a2 100644
--- a/lib/librte_sched/rte_sched.c
+++ b/lib/librte_sched/rte_sched.c
@@ -2487,9 +2487,9 @@ grinder_wrr(struct rte_sched_port *port, uint32_t pos)
#define grinder_evict(port, pos)
static inline void
-grinder_prefetch_pipe(struct rte_sched_port *port, uint32_t pos)
+grinder_prefetch_pipe(struct rte_sched_subport *subport, uint32_t pos)
{
- struct rte_sched_grinder *grinder = port->grinder + pos;
+ struct rte_sched_grinder *grinder = subport->grinder + pos;
rte_prefetch0(grinder->pipe);
rte_prefetch0(grinder->queue[0]);
@@ -2498,23 +2498,32 @@ grinder_prefetch_pipe(struct rte_sched_port *port, uint32_t pos)
static inline void
grinder_prefetch_tc_queue_arrays(struct rte_sched_port *port, uint32_t pos)
{
- struct rte_sched_grinder *grinder = port->grinder + pos;
- uint16_t qsize, qr[4];
+ struct rte_sched_grinder *grinder = port->subport->grinder + pos;
+ struct rte_sched_pipe *pipe = grinder->pipe;
+ struct rte_sched_queue *queue;
+ uint32_t i;
+ uint16_t qsize, qr[RTE_SCHED_MAX_QUEUES_PER_TC];
- qsize = grinder->qsize[0];
- qr[0] = grinder->queue[0]->qr & (qsize - 1);
- qr[1] = grinder->queue[1]->qr & (qsize - 1);
- qr[2] = grinder->queue[2]->qr & (qsize - 1);
- qr[3] = grinder->queue[3]->qr & (qsize - 1);
+ grinder->qpos = 0;
+ if (grinder->tc_index < RTE_SCHED_TRAFFIC_CLASS_BE) {
+ queue = grinder->queue[0];
+ qsize = grinder->qsize[0];
+ qr[0] = queue->qr & (qsize - 1);
- rte_prefetch0(grinder->qbase[0] + qr[0]);
- rte_prefetch0(grinder->qbase[1] + qr[1]);
+ rte_prefetch0(grinder->qbase[0] + qr[0]);
+ return;
+ }
+
+ for (i = 0; i < pipe->n_be_queues; i++) {
+ queue = grinder->queue[i];
+ qsize = grinder->qsize[i];
+ qr[i] = queue->qr & (qsize - 1);
+
+ rte_prefetch0(grinder->qbase[i] + qr[i]);
+ }
grinder_wrr_load(port, pos);
grinder_wrr(port, pos);
-
- rte_prefetch0(grinder->qbase[2] + qr[2]);
- rte_prefetch0(grinder->qbase[3] + qr[3]);
}
static inline void
@@ -2545,7 +2554,7 @@ grinder_handle(struct rte_sched_port *port, uint32_t pos)
case e_GRINDER_PREFETCH_PIPE:
{
if (grinder_next_pipe(port->subport, pos)) {
- grinder_prefetch_pipe(port, pos);
+ grinder_prefetch_pipe(port->subport, pos);
port->busy_grinders++;
grinder->state = e_GRINDER_PREFETCH_TC_QUEUE_ARRAYS;
@@ -2606,7 +2615,7 @@ grinder_handle(struct rte_sched_port *port, uint32_t pos)
/* Look for another active pipe */
if (grinder_next_pipe(port->subport, pos)) {
- grinder_prefetch_pipe(port, pos);
+ grinder_prefetch_pipe(port->subport, pos);
grinder->state = e_GRINDER_PREFETCH_TC_QUEUE_ARRAYS;
return result;
--
2.21.0
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