diff options
Diffstat (limited to 'drivers/net/hyperv/netvsc_drv.c')
| -rw-r--r-- | drivers/net/hyperv/netvsc_drv.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c index d6c4abfc3a28..c51b318b8a72 100644 --- a/drivers/net/hyperv/netvsc_drv.c +++ b/drivers/net/hyperv/netvsc_drv.c @@ -29,6 +29,7 @@ #include <linux/bpf.h> #include <net/arp.h> +#include <net/netdev_lock.h> #include <net/route.h> #include <net/sock.h> #include <net/pkt_sched.h> @@ -2461,6 +2462,21 @@ static int netvsc_vf_changed(struct net_device *vf_netdev, unsigned long event) } else { netdev_info(ndev, "Data path switched %s VF: %s\n", vf_is_up ? "to" : "from", vf_netdev->name); + + /* In Azure, when accelerated networking in enabled, other NICs + * like MANA, MLX, are configured as a bonded nic with + * Netvsc(failover) NIC. For bonded NICs, the min of the max + * pkt aggregate size of the members is propagated in the stack. + * In order to allow these NICs (MANA/MLX) to use up to + * GSO_MAX_SIZE gso packet size, we need to allow Netvsc NIC to + * also support this in the guest. + * This value is only increased for netvsc NIC when datapath is + * switched over to the VF + */ + if (vf_is_up) + netif_set_tso_max_size(ndev, vf_netdev->tso_max_size); + else + netif_set_tso_max_size(ndev, netvsc_dev->netvsc_gso_max_size); } return NOTIFY_OK; |