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Diffstat (limited to 'docs/specs/vhost-user.txt')
| -rw-r--r-- | docs/specs/vhost-user.txt | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/docs/specs/vhost-user.txt b/docs/specs/vhost-user.txt index d70bd83b13..036890feb0 100644 --- a/docs/specs/vhost-user.txt +++ b/docs/specs/vhost-user.txt @@ -259,6 +259,7 @@ Protocol features #define VHOST_USER_PROTOCOL_F_LOG_SHMFD 1 #define VHOST_USER_PROTOCOL_F_RARP 2 #define VHOST_USER_PROTOCOL_F_REPLY_ACK 3 +#define VHOST_USER_PROTOCOL_F_MTU 4 Message types ------------- @@ -470,6 +471,21 @@ Message types The first 6 bytes of the payload contain the mac address of the guest to allow the vhost user backend to construct and broadcast the fake RARP. + * VHOST_USER_NET_SET_MTU + + Id: 20 + Equivalent ioctl: N/A + Master payload: u64 + + Set host MTU value exposed to the guest. + This request should be sent only when VIRTIO_NET_F_MTU feature has been + successfully negotiated, VHOST_USER_F_PROTOCOL_FEATURES is present in + VHOST_USER_GET_FEATURES and protocol feature bit + VHOST_USER_PROTOCOL_F_NET_MTU is present in + VHOST_USER_GET_PROTOCOL_FEATURES. + If VHOST_USER_PROTOCOL_F_REPLY_ACK is negotiated, slave must respond + with zero in case the specified MTU is valid, or non-zero otherwise. + VHOST_USER_PROTOCOL_F_REPLY_ACK: ------------------------------- The original vhost-user specification only demands replies for certain |