net/vhost: restore pseudo TSO support

The net/vhost PMD does not comply with the ethdev offload API as it does
not report Rx/Tx offload capabilities wrt TSO and checksum offloading.
On the other hand, the net/vhost PMD lets guest negotiates TSO and
checksum offloading.

Changing the behavior for Rx/Tx offload flags handling won't
improve/fix this situation and will break applications that might have
been relying on implicit support of TSO in this driver.

Revert this behavior change until we have a complete fix.

Fixes: ca7036b4af3a ("vhost: fix offload flags in Rx path")
Cc: stable@dpdk.org
Signed-off-by: David Marchand <david.marchand@redhat.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>

diff --git a/drivers/net/vhost/rte_eth_vhost.c b/drivers/net/vhost/rte_eth_vhost.c
index 8524898..a202931 100644 (file)
--- a/drivers/net/vhost/rte_eth_vhost.c
+++ b/drivers/net/vhost/rte_eth_vhost.c
@@ -1505,7 +1505,7 @@ rte_pmd_vhost_probe(struct rte_vdev_device *dev)
        int ret = 0;
        char *iface_name;
        uint16_t queues;
-       uint64_t flags = RTE_VHOST_USER_NET_COMPLIANT_OL_FLAGS;
+       uint64_t flags = 0;
        uint64_t disable_flags = 0;
        int client_mode = 0;
        int iommu_support = 0;