diff mbox series

[v7,4/7] tap: allow extended virtio header with hash info

Message ID 20200329150953.23812-5-yuri.benditovich@daynix.com
State New
Headers show
Series reference implementation of RSS and hash report | expand

Commit Message

Yuri Benditovich March 29, 2020, 3:09 p.m. UTC 
Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
---
 net/tap.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/net/tap.c b/net/tap.c
index 6207f61f84..47de7fdeb6 100644
--- a/net/tap.c
+++ b/net/tap.c
@@ -63,6 +63,14 @@  typedef struct TAPState {
     Notifier exit;
 } TAPState;
 
+/* TODO: remove when virtio_net.h updated */
+struct virtio_net_hdr_v1_hash {
+    struct virtio_net_hdr_v1 hdr;
+    uint32_t hash_value;
+    uint16_t hash_report;
+    uint16_t padding;
+};
+
 static void launch_script(const char *setup_script, const char *ifname,
                           int fd, Error **errp);
 
@@ -254,7 +262,8 @@  static void tap_set_vnet_hdr_len(NetClientState *nc, int len)
 
     assert(nc->info->type == NET_CLIENT_DRIVER_TAP);
     assert(len == sizeof(struct virtio_net_hdr_mrg_rxbuf) ||
-           len == sizeof(struct virtio_net_hdr));
+           len == sizeof(struct virtio_net_hdr) ||
+           len == sizeof(struct virtio_net_hdr_v1_hash));
 
     tap_fd_set_vnet_hdr_len(s->fd, len);
     s->host_vnet_hdr_len = len;