From ecc8a753c956909445b75448fb33e86bab764101 Mon Sep 17 00:00:00 2001 From: Xavier Simonart Date: Sun, 13 Oct 2019 00:18:14 +0200 Subject: Disable TX checksum offload in some virtio cases Some OVS versions reports that they support UDP offload and no IPv4 offload, but fails when UDP offload is enabled. Hence, now, when virtio reports that it supports UDP checksum and no IPV4 checksum offload, we disable UDP checksum offload. Change-Id: I4f22f6be4d97b0aedf267ebeaa498c0dacef3317 Signed-off-by: Xavier Simonart --- VNFs/DPPD-PROX/prox_port_cfg.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/VNFs/DPPD-PROX/prox_port_cfg.c b/VNFs/DPPD-PROX/prox_port_cfg.c index a0530c4f..a28e4540 100644 --- a/VNFs/DPPD-PROX/prox_port_cfg.c +++ b/VNFs/DPPD-PROX/prox_port_cfg.c @@ -276,6 +276,13 @@ void init_rte_dev(int use_dummy_devices) plog_info("\t\tDisabling UDP cksum on vmxnet3\n"); port_cfg->disabled_tx_offload |= DEV_TX_OFFLOAD_UDP_CKSUM; } + // Some OVS versions reports that they support UDP offload and no IPv4 offload, but fails when UDP offload is enabled + if ((!strcmp(port_cfg->short_name, "virtio")) && + ((port_cfg->dev_info.tx_offload_capa & DEV_TX_OFFLOAD_IPV4_CKSUM) == 0) && + (port_cfg->dev_info.tx_offload_capa & DEV_TX_OFFLOAD_UDP_CKSUM)) { + plog_info("\t\tDisabling UDP cksum on virtio\n"); + port_cfg->disabled_tx_offload |= DEV_TX_OFFLOAD_UDP_CKSUM; + } } } -- cgit 1.2.3-korg