diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/virtio_vsock.h | 10 | ||||
| -rw-r--r-- | include/trace/events/vsock_virtio_transport_common.h | 12 |
2 files changed, 18 insertions, 4 deletions
diff --git a/include/linux/virtio_vsock.h b/include/linux/virtio_vsock.h index c58453699ee9..ebb3ce63d64d 100644 --- a/include/linux/virtio_vsock.h +++ b/include/linux/virtio_vsock.h @@ -12,6 +12,7 @@ struct virtio_vsock_skb_cb { bool reply; bool tap_delivered; + u32 offset; }; #define VIRTIO_VSOCK_SKB_CB(skb) ((struct virtio_vsock_skb_cb *)((skb)->cb)) @@ -159,6 +160,15 @@ struct virtio_transport { /* Takes ownership of the packet */ int (*send_pkt)(struct sk_buff *skb); + + /* Used in MSG_ZEROCOPY mode. Checks, that provided data + * (number of buffers) could be transmitted with zerocopy + * mode. If this callback is not implemented for the current + * transport - this means that this transport doesn't need + * extra checks and can perform zerocopy transmission by + * default. + */ + bool (*can_msgzerocopy)(int bufs_num); }; ssize_t diff --git a/include/trace/events/vsock_virtio_transport_common.h b/include/trace/events/vsock_virtio_transport_common.h index d0b3f0ea9ba1..f1ebe36787c3 100644 --- a/include/trace/events/vsock_virtio_transport_common.h +++ b/include/trace/events/vsock_virtio_transport_common.h @@ -43,7 +43,8 @@ TRACE_EVENT(virtio_transport_alloc_pkt, __u32 len, __u16 type, __u16 op, - __u32 flags + __u32 flags, + bool zcopy ), TP_ARGS( src_cid, src_port, @@ -51,7 +52,8 @@ TRACE_EVENT(virtio_transport_alloc_pkt, len, type, op, - flags + flags, + zcopy ), TP_STRUCT__entry( __field(__u32, src_cid) @@ -62,6 +64,7 @@ TRACE_EVENT(virtio_transport_alloc_pkt, __field(__u16, type) __field(__u16, op) __field(__u32, flags) + __field(bool, zcopy) ), TP_fast_assign( __entry->src_cid = src_cid; @@ -72,14 +75,15 @@ TRACE_EVENT(virtio_transport_alloc_pkt, __entry->type = type; __entry->op = op; __entry->flags = flags; + __entry->zcopy = zcopy; ), - TP_printk("%u:%u -> %u:%u len=%u type=%s op=%s flags=%#x", + TP_printk("%u:%u -> %u:%u len=%u type=%s op=%s flags=%#x zcopy=%s", __entry->src_cid, __entry->src_port, __entry->dst_cid, __entry->dst_port, __entry->len, show_type(__entry->type), show_op(__entry->op), - __entry->flags) + __entry->flags, __entry->zcopy ? "true" : "false") ); TRACE_EVENT(virtio_transport_recv_pkt, |