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Index: sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c
===================================================================
--- sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c
+++ sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c
@@ -132,6 +132,8 @@
/* YYY should get it from the underlying channel */
#define HN_TX_DESC_CNT 512
+#define HN_LROENT_CNT_DEF 128
+
#define HN_RNDIS_MSG_LEN \
(sizeof(rndis_msg) + \
RNDIS_VLAN_PPI_SIZE + \
@@ -232,6 +234,13 @@
static int hn_direct_tx_size = HN_DIRECT_TX_SIZE_DEF;
TUNABLE_INT("dev.hn.direct_tx_size", &hn_direct_tx_size);
+#if defined(INET) || defined(INET6)
+#if __FreeBSD_version >= 1100095
+static int hn_lro_entry_count = HN_LROENT_CNT_DEF;
+TUNABLE_INT("dev.hn.lro_entry_count", &hn_lro_entry_count);
+#endif
+#endif
+
/*
* Forward declarations
*/
@@ -335,6 +344,11 @@
#if __FreeBSD_version >= 1100045
int tso_maxlen;
#endif
+#if defined(INET) || defined(INET6)
+#if __FreeBSD_version >= 1100095
+ int lroent_cnt;
+#endif
+#endif
sc = device_get_softc(dev);
if (sc == NULL) {
@@ -417,9 +431,17 @@
}
#if defined(INET) || defined(INET6)
+#if __FreeBSD_version >= 1100095
+ lroent_cnt = hn_lro_entry_count;
+ if (lroent_cnt < TCP_LRO_ENTRIES)
+ lroent_cnt = TCP_LRO_ENTRIES;
+ tcp_lro_init_args(&sc->hn_lro, ifp, lroent_cnt, 0);
+ device_printf(dev, "LRO: entry count %d\n", lroent_cnt);
+#else
tcp_lro_init(&sc->hn_lro);
/* Driver private LRO settings */
sc->hn_lro.ifp = ifp;
+#endif
#ifdef HN_LRO_HIWAT
sc->hn_lro.lro_hiwat = sc->hn_lro_hiwat;
#endif
@@ -547,6 +569,12 @@
SYSCTL_ADD_INT(dc_ctx, dc_child, OID_AUTO, "direct_tx_size",
CTLFLAG_RD, &hn_direct_tx_size, 0,
"Size of the packet for direct transmission");
+#if defined(INET) || defined(INET6)
+#if __FreeBSD_version >= 1100095
+ SYSCTL_ADD_INT(dc_ctx, dc_child, OID_AUTO, "lro_entry_count",
+ CTLFLAG_RD, &hn_lro_entry_count, 0, "LRO entry count");
+#endif
+#endif
}
return (0);

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