[dpdk-dev] [PATCH] vhost: add protocol feature check
Jin Yu
jin.yu at intel.com
Wed Dec 25 15:24:45 CET 2019
Add VHOST_USER_PROTOCOL_F_INFLIGHT_SHMFD check in
getting inflight ring functions.
Fixes: 4d891f77ddfa ("vhost: add APIs to get inflight ring")
Cc: stable at dpdk.org
Signed-off-by: Jin Yu <jin.yu at intel.com>
---
lib/librte_vhost/vhost.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/lib/librte_vhost/vhost.c b/lib/librte_vhost/vhost.c
index 1cbe948f7..dfb71732b 100644
--- a/lib/librte_vhost/vhost.c
+++ b/lib/librte_vhost/vhost.c
@@ -862,6 +862,10 @@ rte_vhost_get_vhost_ring_inflight(int vid, uint16_t vring_idx,
if (unlikely(!dev))
return -1;
+ if (unlikely(!(dev->protocol_features &
+ (1ULL << VHOST_USER_PROTOCOL_F_INFLIGHT_SHMFD))))
+ return 0;
+
if (vring_idx >= VHOST_MAX_VRING)
return -1;
@@ -1431,6 +1435,10 @@ rte_vhost_get_vring_base_from_inflight(int vid,
if (dev == NULL || last_avail_idx == NULL || last_used_idx == NULL)
return -1;
+ if (unlikely(!(dev->protocol_features &
+ (1ULL << VHOST_USER_PROTOCOL_F_INFLIGHT_SHMFD))))
+ return 0;
+
if (!vq_is_packed(dev))
return -1;
--
2.17.2
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