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 <xavier.simonart@intel.com>

diff --git a/VNFs/DPPD-PROX/prox_port_cfg.c b/VNFs/DPPD-PROX/prox_port_cfg.c
index a0530c4..a28e454 100644 (file)
--- 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;
+               }
        }
 }