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net/virtio: fix wrong Rx/Tx method for secondary process

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If the primary enables the vector Rx/Tx path, the current code would
let the secondary always choose the non vector Rx/Tx path. This results
to a Rx/Tx method mismatch between primary and secondary process. Werid
errors then may happen, something like:

    PMD: virtio_xmit_pkts() tx: virtqueue_enqueue error: -14

Fix it by choosing the correct Rx/Tx callbacks for the secondary process.
That is, use vector path if it's given.

Fixes: 8d8393fb1861 ("virtio: pick simple Rx/Tx")
Cc: stable@dpdk.org

Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
This commit is contained in:
Yuanhan Liu 2017-01-06 18:16:16 +08:00
parent d948f596fe
commit d4be35a913
1 changed files with 6 additions and 1 deletions
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7
drivers/net/virtio/virtio_ethdev.c
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@ -1308,7 +1308,12 @@ eth_virtio_dev_init(struct rte_eth_dev *eth_dev)
eth_dev->tx_pkt_burst = &virtio_xmit_pkts;
if (rte_eal_process_type() == RTE_PROC_SECONDARY) {
rx_func_get(eth_dev);
if (hw->use_simple_rxtx) {
eth_dev->tx_pkt_burst = virtio_xmit_pkts_simple;
eth_dev->rx_pkt_burst = virtio_recv_pkts_vec;
} else {
rx_func_get(eth_dev);
}
return 0;
}