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-rw-r--r--sys/dev/xen/netfront/netfront.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/sys/dev/xen/netfront/netfront.c b/sys/dev/xen/netfront/netfront.c
index 6e3260d..f2dc3ac 100644
--- a/sys/dev/xen/netfront/netfront.c
+++ b/sys/dev/xen/netfront/netfront.c
@@ -134,6 +134,7 @@ static const int MODPARM_rx_flip = 0;
* to mirror the Linux MAX_SKB_FRAGS constant.
*/
#define MAX_TX_REQ_FRAGS (65536 / PAGE_SIZE + 2)
+#define NF_TSO_MAXBURST ((IP_MAXPACKET / PAGE_SIZE) * MCLBYTES)
#define RX_COPY_THRESHOLD 256
@@ -2122,6 +2123,7 @@ create_netdev(device_t dev)
ifp->if_hwassist = XN_CSUM_FEATURES;
ifp->if_capabilities = IFCAP_HWCSUM;
+ ifp->if_hw_tsomax = NF_TSO_MAXBURST;
ether_ifattach(ifp, np->mac);
callout_init(&np->xn_stat_ch, CALLOUT_MPSAFE);
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