[dpdk-dev] [PATCH v3 01/21] net/virtio: by default disable packed virtqueues

[Jens Freimann]

Disable packed virtqueues for now and make it dependend on a build-time
config option. This can be reverted once we have missing features like
indirect descriptors implemented.

Signed-off-by: Jens Freimann <jfreim...@redhat.com>
---
 config/common_base                 | 1 +
 drivers/net/virtio/virtio_ethdev.c | 4 ++++
 2 files changed, 5 insertions(+)

diff --git a/config/common_base b/config/common_base
index c09c7cf88..cd4b419b4 100644
--- a/config/common_base
+++ b/config/common_base
@@ -346,6 +346,7 @@ CONFIG_RTE_LIBRTE_VIRTIO_PMD=y
 CONFIG_RTE_LIBRTE_VIRTIO_DEBUG_RX=n
 CONFIG_RTE_LIBRTE_VIRTIO_DEBUG_TX=n
 CONFIG_RTE_LIBRTE_VIRTIO_DEBUG_DUMP=n
+CONFIG_RTE_LIBRTE_VIRTIO_PQ=n
 
 #
 # Compile virtio device emulation inside virtio PMD driver
diff --git a/drivers/net/virtio/virtio_ethdev.c 
b/drivers/net/virtio/virtio_ethdev.c
index 11f758929..06fbf7311 100644
--- a/drivers/net/virtio/virtio_ethdev.c
+++ b/drivers/net/virtio/virtio_ethdev.c
@@ -1149,6 +1149,10 @@ virtio_negotiate_features(struct virtio_hw *hw, uint64_t 
req_features)
                        req_features &= ~(1ULL << VIRTIO_NET_F_MTU);
        }
 
+#ifndef RTE_LIBRTE_VIRTIO_PQ
+       req_features &= ~(1ull << VIRTIO_F_RING_PACKED);
+#endif
+
        /*
         * Negotiate features: Subset of device feature bits are written back
         * guest feature bits.
-- 
2.14.3