[v2] doc: add note for vhost builtin example
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Commit Message
Add memory pre-allocation note for vhost example when enabling
"builtin-net-driver".
Signed-off-by: Xuan Ding <xuan.ding@intel.com>
---
v2:
* Modified expression in doc to make it more accurate.
---
doc/guides/sample_app_ug/vhost.rst | 7 +++++++
1 file changed, 7 insertions(+)
Comments
On 3/25/20 5:21 AM, Xuan Ding wrote:
> Add memory pre-allocation note for vhost example when enabling
> "builtin-net-driver".
>
> Signed-off-by: Xuan Ding <xuan.ding@intel.com>
> ---
>
> v2:
> * Modified expression in doc to make it more accurate.
> ---
> doc/guides/sample_app_ug/vhost.rst | 7 +++++++
> 1 file changed, 7 insertions(+)
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Thanks,
Maxime
On 3/25/20 5:21 AM, Xuan Ding wrote:
> Add memory pre-allocation note for vhost example when enabling
> "builtin-net-driver".
>
> Signed-off-by: Xuan Ding <xuan.ding@intel.com>
> ---
>
> v2:
> * Modified expression in doc to make it more accurate.
> ---
> doc/guides/sample_app_ug/vhost.rst | 7 +++++++
> 1 file changed, 7 insertions(+)
Applied to dpdk-next-virtio/master
Thanks,
Maxime
@@ -201,3 +201,10 @@ Common Issues
QEMU vhost net device start will fail if protocol feature is not negotiated.
DPDK virtio-user pmd can be the replacement of QEMU.
+
+* Device start fails when enabling "builtin-net-driver" without memory
+ pre-allocation
+
+ The builtin example doesn't support dynamic memory allocation. When vhost
+ backend enables "builtin-net-driver", "--socket-mem" option should be
+ added at virtio-user pmd side as a startup item.