[dpdk-dev] [PATCH v2] virtio: Fix crash issue for secondary process
Thomas Monjalon
thomas.monjalon at 6wind.com
Fri Mar 27 09:57:57 CET 2015
2015-03-27 14:35, Ouyang Changchun:
> It needs Rx function even in the case of secondary process, and it also needs check if
> it supports mergeable feature or not.
>
> Signed-off-by: Changchun Ouyang <changchun.ouyang at intel.com>
> ---
>
> Changes in v2:
> -- Check if it supports mergeable or not for the secondary process.
> --- a/lib/librte_pmd_virtio/virtio_ethdev.c
> +++ b/lib/librte_pmd_virtio/virtio_ethdev.c
> @@ -1115,8 +1115,13 @@ eth_virtio_dev_init(struct rte_eth_dev *eth_dev)
> eth_dev->dev_ops = &virtio_eth_dev_ops;
> eth_dev->tx_pkt_burst = &virtio_xmit_pkts;
>
> - if (rte_eal_process_type() == RTE_PROC_SECONDARY)
> + if (rte_eal_process_type() == RTE_PROC_SECONDARY) {
> + if (vtpci_with_feature(hw, VIRTIO_NET_F_MRG_RXBUF))
> + eth_dev->rx_pkt_burst = &virtio_recv_mergeable_pkts;
> + else
> + eth_dev->rx_pkt_burst = &virtio_recv_pkts;
You are duplicating code, making it error prone for later maintenance.
Please merge primary and secondary cases above the if() block.
> return 0;
> + }
>
> /* Allocate memory for storing MAC addresses */
> eth_dev->data->mac_addrs = rte_zmalloc("virtio", ETHER_ADDR_LEN, 0);
>
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