From: Michael Qiu Date: Thu, 18 Dec 2014 10:16:49 +0000 (+0800) Subject: ixgbe: fix secondary process start X-Git-Tag: spdx-start~9891 X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=740b3971455971bc4603bd8b6adb36b445678316;p=dpdk.git ixgbe: fix secondary process start EAL: probe driver: 8086:10fb rte_ixgbe_pmd EAL: PCI memory mapped at 0x7f18c2a00000 EAL: PCI memory mapped at 0x7f18c2a80000 Segmentation fault (core dumped) This is introduced by commit: 46bc9d75 ixgbe: fix multi-process support When start primary process with command line: ./app/test/test -n 1 -c ffff -m 64 then start the second one: ./app/test/test -n 1 --proc-type=secondary --file-prefix=rte This segment-fault will occur. Root cause is test app on primary process only starts device, but the queue need initialized by manually command line. So the tx queue is still NULL when secondary process startup. Reported-by: Yong Liu Signed-off-by: Michael Qiu Acked-by: Pablo de Lara --- diff --git a/lib/librte_pmd_ixgbe/ixgbe_ethdev.c b/lib/librte_pmd_ixgbe/ixgbe_ethdev.c index 94019163fa..f4455b6d57 100644 --- a/lib/librte_pmd_ixgbe/ixgbe_ethdev.c +++ b/lib/librte_pmd_ixgbe/ixgbe_ethdev.c @@ -749,9 +749,16 @@ eth_ixgbe_dev_init(__attribute__((unused)) struct eth_driver *eth_drv, */ if (rte_eal_process_type() != RTE_PROC_PRIMARY){ struct igb_tx_queue *txq; - /* TX queue function in primary, set by last queue initialized */ - txq = eth_dev->data->tx_queues[eth_dev->data->nb_tx_queues-1]; - set_tx_function(eth_dev, txq); + /* TX queue function in primary, set by last queue initialized + * Tx queue may not initialized by primary process */ + if (eth_dev->data->tx_queues) { + txq = eth_dev->data->tx_queues[eth_dev->data->nb_tx_queues-1]; + set_tx_function(eth_dev, txq); + } else { + /* Use default TX function if we get here */ + PMD_INIT_LOG(INFO, "No TX queues configured yet. " + "Using default TX function."); + } if (eth_dev->data->scattered_rx) eth_dev->rx_pkt_burst = ixgbe_recv_scattered_pkts;