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From: Pavan Nikhilesh <pbhagavatula@caviumnetworks.com>
To: gage.eads@intel.com, jerin.jacobkollanukkaran@cavium.com,
harry.van.haaren@intel.com, nikhil.rao@intel.com, hemant.agrawal@nxp.com,
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Cc: dev@dpdk.org,
Pavan Nikhilesh <pbhagavatula@caviumnetworks.com>
Date: Fri, 8 Dec 2017 02:06:53 +0530
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Subject: [dpdk-dev] [PATCH 01/13] examples/eventdev: add Rx adapter support
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Use event Rx adapter for packets Rx instead of explicit producer logic.
Use service run iter function for granular control instead of using
dedicated service lcore.
Signed-off-by: Pavan Nikhilesh <pbhagavatula@caviumnetworks.com>
---
examples/eventdev_pipeline_sw_pmd/main.c | 149 +++++++++++++++++--------------
1 file changed, 82 insertions(+), 67 deletions(-)
diff --git a/examples/eventdev_pipeline_sw_pmd/main.c b/examples/eventdev_pipeline_sw_pmd/main.c
index 5f431d87d..bb87c9544 100644
--- a/examples/eventdev_pipeline_sw_pmd/main.c
+++ b/examples/eventdev_pipeline_sw_pmd/main.c
@@ -46,6 +46,7 @@
#include <rte_cycles.h>
#include <rte_ethdev.h>
#include <rte_eventdev.h>
+#include <rte_event_eth_rx_adapter.h>
#include <rte_service.h>
#define MAX_NUM_STAGES 8
@@ -78,6 +79,7 @@ struct fastpath_data {
uint32_t tx_lock;
uint32_t sched_lock;
uint32_t evdev_service_id;
+ uint32_t rxadptr_service_id;
bool rx_single;
bool tx_single;
bool sched_single;
@@ -105,6 +107,7 @@ struct config_data {
unsigned int worker_cq_depth;
int16_t next_qid[MAX_NUM_STAGES+2];
int16_t qid[MAX_NUM_STAGES];
+ uint8_t rx_adapter_id;
};
static struct config_data cdata = {
@@ -193,53 +196,12 @@ consumer(void)
return 0;
}
-static int
-producer(void)
-{
- static uint8_t eth_port;
- struct rte_mbuf *mbufs[BATCH_SIZE+2];
- struct rte_event ev[BATCH_SIZE+2];
- uint32_t i, num_ports = prod_data.num_nic_ports;
- int32_t qid = prod_data.qid;
- uint8_t dev_id = prod_data.dev_id;
- uint8_t port_id = prod_data.port_id;
- uint32_t prio_idx = 0;
-
- const uint16_t nb_rx = rte_eth_rx_burst(eth_port, 0, mbufs, BATCH_SIZE);
- if (++eth_port == num_ports)
- eth_port = 0;
- if (nb_rx == 0) {
- rte_pause();
- return 0;
- }
-
- for (i = 0; i < nb_rx; i++) {
- ev[i].flow_id = mbufs[i]->hash.rss;
- ev[i].op = RTE_EVENT_OP_NEW;
- ev[i].sched_type = cdata.queue_type;
- ev[i].queue_id = qid;
- ev[i].event_type = RTE_EVENT_TYPE_ETHDEV;
- ev[i].sub_event_type = 0;
- ev[i].priority = RTE_EVENT_DEV_PRIORITY_NORMAL;
- ev[i].mbuf = mbufs[i];
- RTE_SET_USED(prio_idx);
- }
-
- const int nb_tx = rte_event_enqueue_burst(dev_id, port_id, ev, nb_rx);
- if (nb_tx != nb_rx) {
- for (i = nb_tx; i < nb_rx; i++)
- rte_pktmbuf_free(mbufs[i]);
- }
-
- return 0;
-}
-
static inline void
schedule_devices(unsigned int lcore_id)
{
if (fdata->rx_core[lcore_id] && (fdata->rx_single ||
rte_atomic32_cmpset(&(fdata->rx_lock), 0, 1))) {
- producer();
+ rte_service_run_iter_on_app_lcore(fdata->rxadptr_service_id, 1);
rte_atomic32_clear((rte_atomic32_t *)&(fdata->rx_lock));
}
@@ -553,6 +515,79 @@ parse_app_args(int argc, char **argv)
}
}
+static inline void
+init_rx_adapter(uint16_t nb_ports)
+{
+ int i;
+ int ret;
+ uint8_t evdev_id = 0;
+ uint8_t port_needed = 0;
+ struct rte_event_dev_info dev_info;
+
+ ret = rte_event_dev_info_get(evdev_id, &dev_info);
+
+ struct rte_event_port_conf rx_p_conf = {
+ .dequeue_depth = 8,
+ .enqueue_depth = 8,
+ .new_event_threshold = 1200,
+ };
+
+ if (rx_p_conf.dequeue_depth > dev_info.max_event_port_dequeue_depth)
+ rx_p_conf.dequeue_depth = dev_info.max_event_port_dequeue_depth;
+ if (rx_p_conf.enqueue_depth > dev_info.max_event_port_enqueue_depth)
+ rx_p_conf.enqueue_depth = dev_info.max_event_port_enqueue_depth;
+
+ ret = rte_event_eth_rx_adapter_create(cdata.rx_adapter_id, evdev_id,
+ &rx_p_conf);
+ if (ret)
+ rte_exit(EXIT_FAILURE, "failed to create rx adapter[%d]",
+ cdata.rx_adapter_id);
+
+ struct rte_event_eth_rx_adapter_queue_conf queue_conf = {
+ .ev.sched_type = cdata.queue_type,
+ .ev.queue_id = cdata.qid[0],
+ };
+
+ for (i = 0; i < nb_ports; i++) {
+ uint32_t cap;
+
+ ret = rte_event_eth_rx_adapter_caps_get(evdev_id, i, &cap);
+ if (ret)
+ rte_exit(EXIT_FAILURE,
+ "failed to get event rx adapter "
+ "capabilities");
+ /* Producer needs port. */
+ port_needed |= !(cap &
+ RTE_EVENT_ETH_RX_ADAPTER_CAP_INTERNAL_PORT);
+
+ ret = rte_event_eth_rx_adapter_queue_add(cdata.rx_adapter_id, i,
+ -1, &queue_conf);
+ if (ret)
+ rte_exit(EXIT_FAILURE,
+ "Failed to add queues to Rx adapter");
+ }
+
+ if (port_needed)
+ prod_data.port_id = cons_data.port_id + 1;
+ prod_data.dev_id = evdev_id;
+ prod_data.qid = cdata.qid[0];
+
+ ret = rte_event_eth_rx_adapter_service_id_get(cdata.rx_adapter_id,
+ &fdata->rxadptr_service_id);
+ if (ret != -ESRCH && ret != 0) {
+ rte_exit(EXIT_FAILURE,
+ "Error getting the service ID for Rx adapter\n");
+ }
+ rte_service_runstate_set(fdata->rxadptr_service_id, 1);
+ rte_service_set_runstate_mapped_check(fdata->rxadptr_service_id, 0);
+
+ ret = rte_event_eth_rx_adapter_start(cdata.rx_adapter_id);
+ if (ret)
+ rte_exit(EXIT_FAILURE, "Rx adapter[%d] start failed",
+ cdata.rx_adapter_id);
+
+}
+
/*
* Initializes a given port using global settings and with the RX buffers
* coming from the mbuf_pool passed as a parameter.
@@ -663,15 +698,14 @@ struct port_link {
};
static int
-setup_eventdev(struct prod_data *prod_data,
- struct cons_data *cons_data,
+setup_eventdev(struct cons_data *cons_data,
struct worker_data *worker_data)
{
const uint8_t dev_id = 0;
/* +1 stages is for a SINGLE_LINK TX stage */
const uint8_t nb_queues = cdata.num_stages + 1;
- /* + 2 is one port for producer and one for consumer */
- const uint8_t nb_ports = cdata.num_workers + 2;
+ /* + 1 for consumer */
+ const uint8_t nb_ports = cdata.num_workers + 1;
struct rte_event_dev_config config = {
.nb_event_queues = nb_queues,
.nb_event_ports = nb_ports,
@@ -818,26 +852,6 @@ setup_eventdev(struct prod_data *prod_data,
__LINE__, i);
return -1;
}
- /* port for producer, no links */
- struct rte_event_port_conf rx_p_conf = {
- .dequeue_depth = 8,
- .enqueue_depth = 8,
- .new_event_threshold = 1200,
- };
-
- if (rx_p_conf.dequeue_depth > config.nb_event_port_dequeue_depth)
- rx_p_conf.dequeue_depth = config.nb_event_port_dequeue_depth;
- if (rx_p_conf.enqueue_depth > config.nb_event_port_enqueue_depth)
- rx_p_conf.enqueue_depth = config.nb_event_port_enqueue_depth;
-
- if (rte_event_port_setup(dev_id, i + 1, &rx_p_conf) < 0) {
- printf("Error setting up port %d\n", i);
- return -1;
- }
-
- *prod_data = (struct prod_data){.dev_id = dev_id,
- .port_id = i + 1,
- .qid = cdata.qid[0] };
*cons_data = (struct cons_data){.dev_id = dev_id,
.port_id = i };
@@ -940,12 +954,13 @@ main(int argc, char **argv)
if (worker_data == NULL)
rte_panic("rte_calloc failed\n");
- int dev_id = setup_eventdev(&prod_data, &cons_data, worker_data);
+ int dev_id = setup_eventdev(&cons_data, worker_data);
if (dev_id < 0)
rte_exit(EXIT_FAILURE, "Error setting up eventdev\n");
prod_data.num_nic_ports = num_ports;
init_ports(num_ports);
+ init_rx_adapter(num_ports);
int worker_idx = 0;
RTE_LCORE_FOREACH_SLAVE(lcore_id) {
--
2.14.1