/*-
* BSD LICENSE
- *
- * Copyright(c) 2010-2013 Intel Corporation. All rights reserved.
+ *
+ * Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
* All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
* are met:
- *
- * * Redistributions of source code must retain the above copyright
+ *
+ * * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
* distribution.
- * * Neither the name of Intel Corporation nor the names of its
- * contributors may be used to endorse or promote products derived
+ * * Neither the name of Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
*/
#include <stdio.h>
static struct rte_eth_conf port_conf = {
.rxmode = {
+ .mq_mode = ETH_MQ_RX_RSS,
.max_rx_pkt_len = ETHER_MAX_LEN,
.split_hdr_size = 0,
.header_split = 0, /**< Header Split disabled */
uint64_t nb_rx_processed;
/* total iterations looped recently */
uint64_t nb_iteration_looped;
- uint32_t padding[9];
+ uint32_t padding[9];
} __rte_cache_aligned;
static struct lcore_conf lcore_conf[RTE_MAX_LCORE] __rte_cache_aligned;
static inline uint32_t power_idle_heuristic(uint32_t zero_rx_packet_count);
static inline enum freq_scale_hint_t power_freq_scaleup_heuristic( \
- unsigned lcore_id, uint32_t rx_ring_length);
+ unsigned lcore_id, uint8_t port_id, uint16_t queue_id);
/* exit signal handler */
static void
/* accumulate total execution time in us when callback is invoked */
sleep_time_ratio = (float)(stats[lcore_id].sleep_time) /
(float)SCALING_PERIOD;
-
+
/**
* check whether need to scale down frequency a step if it sleep a lot.
*/
}
static inline enum freq_scale_hint_t
-power_freq_scaleup_heuristic(unsigned lcore_id, uint32_t rx_ring_length)
+power_freq_scaleup_heuristic(unsigned lcore_id,
+ uint8_t port_id,
+ uint16_t queue_id)
{
/**
* HW Rx queue size is 128 by default, Rx burst read at maximum 32 entries
* per iteration
*/
#define FREQ_GEAR1_RX_PACKET_THRESHOLD MAX_PKT_BURST
-#define FREQ_GEAR2_RX_PACKET_THRESHOLD 64
-#define FREQ_GEAR3_RX_PACKET_THRESHOLD 96
+#define FREQ_GEAR2_RX_PACKET_THRESHOLD (MAX_PKT_BURST*2)
+#define FREQ_GEAR3_RX_PACKET_THRESHOLD (MAX_PKT_BURST*3)
#define FREQ_UP_TREND1_ACC 1
#define FREQ_UP_TREND2_ACC 100
#define FREQ_UP_THRESHOLD 10000
- /**
- * there are received packets to process, staying at C0 state while
- * trying to scale up frequency depending on how many entries on h/w
- * queue. Determine frequency scaleup trend based on availiable entries
- * on Rx queues.
- */
- if (rx_ring_length > FREQ_GEAR3_RX_PACKET_THRESHOLD) {
+ if (likely(rte_eth_rx_descriptor_done(port_id, queue_id,
+ FREQ_GEAR3_RX_PACKET_THRESHOLD) > 0)) {
stats[lcore_id].trend = 0;
return FREQ_HIGHEST;
- } else if (rx_ring_length > FREQ_GEAR2_RX_PACKET_THRESHOLD)
+ } else if (likely(rte_eth_rx_descriptor_done(port_id, queue_id,
+ FREQ_GEAR2_RX_PACKET_THRESHOLD) > 0))
stats[lcore_id].trend += FREQ_UP_TREND2_ACC;
- else if (rx_ring_length > FREQ_GEAR1_RX_PACKET_THRESHOLD)
+ else if (likely(rte_eth_rx_descriptor_done(port_id, queue_id,
+ FREQ_GEAR1_RX_PACKET_THRESHOLD) > 0))
stats[lcore_id].trend += FREQ_UP_TREND1_ACC;
- if (stats[lcore_id].trend > FREQ_UP_THRESHOLD) {
+ if (likely(stats[lcore_id].trend > FREQ_UP_THRESHOLD)) {
stats[lcore_id].trend = 0;
return FREQ_HIGHER;
}
uint8_t portid, queueid;
struct lcore_conf *qconf;
struct lcore_rx_queue *rx_queue;
- uint32_t rx_ring_length;
enum freq_scale_hint_t lcore_scaleup_hint;
-
+
uint32_t lcore_rx_idle_count = 0;
uint32_t lcore_idle_hint = 0;
rx_queue->zero_rx_packet_count);
lcore_rx_idle_count++;
} else {
- /**
- * get availiable descriptor number via MMIO read is costly,
- * so only do it when recent poll returns maximum number.
- */
- if (nb_rx >= MAX_PKT_BURST)
- rx_ring_length = rte_eth_rx_queue_count(portid, queueid);
- else
- rx_ring_length = 0;
-
rx_queue->zero_rx_packet_count = 0;
/**
*/
rx_queue->freq_up_hint =
power_freq_scaleup_heuristic(lcore_id,
- rx_ring_length);
+ portid, queueid);
}
/* Prefetch first packets */
lcore_scaleup_hint)
lcore_scaleup_hint =
rx_queue->freq_up_hint;
- }
-
+ }
+
if (lcore_scaleup_hint == FREQ_HIGHEST)
rte_power_freq_max(lcore_id);
else if (lcore_scaleup_hint == FREQ_HIGHER)
printf("numa is disabled \n");
numa_on = 0;
}
-
+
if (!strncmp(lgopts[option_index].name,
"enable-jumbo", 12)) {
struct option lenopts =
printf("jumbo frame is enabled \n");
port_conf.rxmode.jumbo_frame = 1;
-
+
/**
* if no max-pkt-len set, use the default value
* ETHER_MAX_LEN
"max packet length to %u\n",
(unsigned int)port_conf.rxmode.max_rx_pkt_len);
}
-
+
break;
default:
rte_exit(EXIT_FAILURE, "init_lcore_rx_queues failed\n");
- /* init driver(s) */
- if (rte_pmd_init_all() < 0)
- rte_exit(EXIT_FAILURE, "Cannot init pmd\n");
-
if (rte_eal_pci_probe() < 0)
rte_exit(EXIT_FAILURE, "Cannot probe PCI\n");
git.droids-corp.org / dpdk.git / blobdiff