From 5b873e3b8c8cbb175fa014b0c28944892ce6c3b3 Mon Sep 17 00:00:00 2001 From: Konstantin Ananyev Date: Thu, 8 Feb 2018 15:44:20 +0000 Subject: at DPDK queue setup take into account device descriptor limits. Change-Id: Idf7c65a8499f41d2cd53342f91f2b87e902faf58 Signed-off-by: Konstantin Ananyev --- examples/l4fwd/port.h | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) (limited to 'examples/l4fwd/port.h') diff --git a/examples/l4fwd/port.h b/examples/l4fwd/port.h index a451f7b..b727b1b 100644 --- a/examples/l4fwd/port.h +++ b/examples/l4fwd/port.h @@ -207,6 +207,7 @@ queue_init(struct netbe_port *uprt, struct rte_mempool *mp) { int32_t socket, rc; uint16_t q; + uint32_t nb_rxd, nb_txd; struct rte_eth_dev_info dev_info; rte_eth_dev_info_get(uprt->id, &dev_info); @@ -215,7 +216,10 @@ queue_init(struct netbe_port *uprt, struct rte_mempool *mp) dev_info.default_rxconf.rx_drop_en = 1; - dev_info.default_txconf.tx_free_thresh = TX_RING_SIZE / 2; + nb_rxd = RTE_MIN(RX_RING_SIZE, dev_info.rx_desc_lim.nb_max); + nb_txd = RTE_MIN(TX_RING_SIZE, dev_info.tx_desc_lim.nb_max); + + dev_info.default_txconf.tx_free_thresh = nb_txd / 2; if (uprt->tx_offload != 0) { RTE_LOG(ERR, USER1, "%s(%u): enabling full featured TX;\n", __func__, uprt->id); @@ -223,7 +227,7 @@ queue_init(struct netbe_port *uprt, struct rte_mempool *mp) } for (q = 0; q < uprt->nb_lcore; q++) { - rc = rte_eth_rx_queue_setup(uprt->id, q, RX_RING_SIZE, + rc = rte_eth_rx_queue_setup(uprt->id, q, nb_rxd, socket, &dev_info.default_rxconf, mp); if (rc < 0) { RTE_LOG(ERR, USER1, @@ -234,7 +238,7 @@ queue_init(struct netbe_port *uprt, struct rte_mempool *mp) } for (q = 0; q < uprt->nb_lcore; q++) { - rc = rte_eth_tx_queue_setup(uprt->id, q, TX_RING_SIZE, + rc = rte_eth_tx_queue_setup(uprt->id, q, nb_txd, socket, &dev_info.default_txconf); if (rc < 0) { RTE_LOG(ERR, USER1, -- cgit 1.2.3-korg