[dpdk-dev] [PATCH v2 01/19] Revert "vhost: workaround MQ fails to startup"

[Maxime Coquelin <maxime.coquelin@redhat.com>]

This reverts commit 04d81227960b5c1cf2f11f492100979ead20c526.

As agreed when this workaround was introduced, it can be reverted
as Qemu v2.10 that fixes the issue is now out.

The reply-ack feature is required for vhost-user IOMMU support.

Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
---
 lib/librte_vhost/vhost_user.h | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/lib/librte_vhost/vhost_user.h b/lib/librte_vhost/vhost_user.h
index 35ebd7190..2ba22dbb0 100644
--- a/lib/librte_vhost/vhost_user.h
+++ b/lib/librte_vhost/vhost_user.h
@@ -49,14 +49,10 @@
 #define VHOST_USER_PROTOCOL_F_REPLY_ACK	3
 #define VHOST_USER_PROTOCOL_F_NET_MTU 4
 
-/*
- * disable REPLY_ACK feature to workaround the buggy QEMU implementation.
- * Proved buggy QEMU includes v2.7 - v2.9.
- */
 #define VHOST_USER_PROTOCOL_FEATURES	((1ULL << VHOST_USER_PROTOCOL_F_MQ) | \
 					 (1ULL << VHOST_USER_PROTOCOL_F_LOG_SHMFD) |\
 					 (1ULL << VHOST_USER_PROTOCOL_F_RARP) | \
-					 (0ULL << VHOST_USER_PROTOCOL_F_REPLY_ACK) | \
+					 (1ULL << VHOST_USER_PROTOCOL_F_REPLY_ACK) | \
 					 (1ULL << VHOST_USER_PROTOCOL_F_NET_MTU))
 
 typedef enum VhostUserRequest {
-- 
2.13.5