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examples/l2fwd: increase pktmbuf pool size

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Make pktmbuf pool size a function of ports and lcores detected instead
of using constant 8192.

Signed-off-by: Pavan Nikhilesh <pbhagavatula@caviumnetworks.com>
Acked-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
This commit is contained in:
Pavan Nikhilesh 2018-01-02 15:23:08 +05:30 committed by Thomas Monjalon
parent bacbf5ac50
commit 0b0ceb98db
1 changed files with 15 additions and 10 deletions
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25
examples/l2fwd/main.c
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@ -46,8 +46,6 @@ static int mac_updating = 1;
#define RTE_LOGTYPE_L2FWD RTE_LOGTYPE_USER1 #define RTE_LOGTYPE_L2FWD RTE_LOGTYPE_USER1
#define NB_MBUF 8192
#define MAX_PKT_BURST 32 #define MAX_PKT_BURST 32
#define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */ #define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */
#define MEMPOOL_CACHE_SIZE 256 #define MEMPOOL_CACHE_SIZE 256
@ -526,6 +524,8 @@ main(int argc, char **argv)
uint16_t portid, last_port; uint16_t portid, last_port;
unsigned lcore_id, rx_lcore_id; unsigned lcore_id, rx_lcore_id;
unsigned nb_ports_in_mask = 0; unsigned nb_ports_in_mask = 0;
unsigned int nb_lcores = 0;
unsigned int nb_mbufs;
/* init EAL */ /* init EAL */
ret = rte_eal_init(argc, argv); ret = rte_eal_init(argc, argv);
@ -548,13 +548,6 @@ main(int argc, char **argv)
/* convert to number of cycles */ /* convert to number of cycles */
timer_period *= rte_get_timer_hz(); timer_period *= rte_get_timer_hz();
/* create the mbuf pool */
l2fwd_pktmbuf_pool = rte_pktmbuf_pool_create("mbuf_pool", NB_MBUF,
MEMPOOL_CACHE_SIZE, 0, RTE_MBUF_DEFAULT_BUF_SIZE,
rte_socket_id());
if (l2fwd_pktmbuf_pool == NULL)
rte_exit(EXIT_FAILURE, "Cannot init mbuf pool\n");
nb_ports = rte_eth_dev_count(); nb_ports = rte_eth_dev_count();
if (nb_ports == 0) if (nb_ports == 0)
rte_exit(EXIT_FAILURE, "No Ethernet ports - bye\n"); rte_exit(EXIT_FAILURE, "No Ethernet ports - bye\n");
@ -604,9 +597,11 @@ main(int argc, char **argv)
rte_exit(EXIT_FAILURE, "Not enough cores\n"); rte_exit(EXIT_FAILURE, "Not enough cores\n");
} }
if (qconf != &lcore_queue_conf[rx_lcore_id]) if (qconf != &lcore_queue_conf[rx_lcore_id]) {
/* Assigned a new logical core in the loop above. */ /* Assigned a new logical core in the loop above. */
qconf = &lcore_queue_conf[rx_lcore_id]; qconf = &lcore_queue_conf[rx_lcore_id];
nb_lcores++;
}
qconf->rx_port_list[qconf->n_rx_port] = portid; qconf->rx_port_list[qconf->n_rx_port] = portid;
qconf->n_rx_port++; qconf->n_rx_port++;
@ -615,6 +610,16 @@ main(int argc, char **argv)
nb_ports_available = nb_ports; nb_ports_available = nb_ports;
nb_mbufs = RTE_MAX(nb_ports * (nb_rxd + nb_txd + MAX_PKT_BURST +
nb_lcores * MEMPOOL_CACHE_SIZE), 8192U);
/* create the mbuf pool */
l2fwd_pktmbuf_pool = rte_pktmbuf_pool_create("mbuf_pool", nb_mbufs,
MEMPOOL_CACHE_SIZE, 0, RTE_MBUF_DEFAULT_BUF_SIZE,
rte_socket_id());
if (l2fwd_pktmbuf_pool == NULL)
rte_exit(EXIT_FAILURE, "Cannot init mbuf pool\n");
/* Initialise each port */ /* Initialise each port */
for (portid = 0; portid < nb_ports; portid++) { for (portid = 0; portid < nb_ports; portid++) {
/* skip ports that are not enabled */ /* skip ports that are not enabled */