Author: sephe
Date: Thu Dec 29 06:34:19 2016
New Revision: 310739
URL: https://svnweb.freebsd.org/changeset/base/310739
Log:
MFC 308908,308909
308908
hyperv/hn: Allow enabling IPv6 TX checksum offloading and IPv6 TSO.
They are still disabled by default.
Sponsored by: Microsoft
Differential Revision: https://reviews.freebsd.org/D8490
308909
hyperv/hn: Don't abuse hn_{tx,rx}_ring_inuse.
Just in case, the # of TX/RX rings is changed upon synthetic parts
re-attach.
Sponsored by: Microsoft
Differential Revision: https://reviews.freebsd.org/D8520
Modified:
stable/10/sys/dev/hyperv/netvsc/hn_rndis.c
stable/10/sys/dev/hyperv/netvsc/if_hn.c
Directory Properties:
stable/10/ (props changed)
Modified: stable/10/sys/dev/hyperv/netvsc/hn_rndis.c
==============================================================================
--- stable/10/sys/dev/hyperv/netvsc/hn_rndis.c Thu Dec 29 06:13:00 2016
(r310738)
+++ stable/10/sys/dev/hyperv/netvsc/hn_rndis.c Thu Dec 29 06:34:19 2016
(r310739)
@@ -603,7 +603,6 @@ hn_rndis_conf_offload(struct hn_softc *s
if ((hwcaps.ndis_lsov2.ndis_ip6_encap & NDIS_OFFLOAD_ENCAP_8023) &&
(hwcaps.ndis_lsov2.ndis_ip6_opts & HN_NDIS_LSOV2_CAP_IP6) ==
HN_NDIS_LSOV2_CAP_IP6) {
-#ifdef notyet
caps |= HN_CAP_TSO6;
params.ndis_lsov2_ip6 = NDIS_OFFLOAD_LSOV2_ON;
@@ -611,7 +610,6 @@ hn_rndis_conf_offload(struct hn_softc *s
tso_maxsz = hwcaps.ndis_lsov2.ndis_ip6_maxsz;
if (hwcaps.ndis_lsov2.ndis_ip6_minsg > tso_minsg)
tso_minsg = hwcaps.ndis_lsov2.ndis_ip6_minsg;
-#endif
}
sc->hn_ndis_tso_szmax = 0;
sc->hn_ndis_tso_sgmin = 0;
Modified: stable/10/sys/dev/hyperv/netvsc/if_hn.c
==============================================================================
--- stable/10/sys/dev/hyperv/netvsc/if_hn.c Thu Dec 29 06:13:00 2016
(r310738)
+++ stable/10/sys/dev/hyperv/netvsc/if_hn.c Thu Dec 29 06:34:19 2016
(r310739)
@@ -507,7 +507,7 @@ hn_set_lro_lenlim(struct hn_softc *sc, i
{
int i;
- for (i = 0; i < sc->hn_rx_ring_inuse; ++i)
+ for (i = 0; i < sc->hn_rx_ring_cnt; ++i)
sc->hn_rx_ring[i].hn_lro.lro_length_lim = lenlim;
}
#endif
@@ -1149,6 +1149,13 @@ hn_attach(device_t dev)
/* Enable all available capabilities by default. */
ifp->if_capenable = ifp->if_capabilities;
+ /*
+ * Disable IPv6 TSO and TXCSUM by default, they still can
+ * be enabled through SIOCSIFCAP.
+ */
+ ifp->if_capenable &= ~(IFCAP_TXCSUM_IPV6 | IFCAP_TSO6);
+ ifp->if_hwassist &= ~(HN_CSUM_IP6_MASK | CSUM_IP6_TSO);
+
if (ifp->if_capabilities & (IFCAP_TSO6 | IFCAP_TSO4)) {
hn_set_tso_maxsize(sc, hn_tso_maxlen, ETHERMTU);
ifp->if_hw_tsomaxsegcount = HN_TX_DATA_SEGCNT_MAX;
@@ -2573,7 +2580,7 @@ hn_lro_ackcnt_sysctl(SYSCTL_HANDLER_ARGS
*/
--ackcnt;
HN_LOCK(sc);
- for (i = 0; i < sc->hn_rx_ring_inuse; ++i)
+ for (i = 0; i < sc->hn_rx_ring_cnt; ++i)
sc->hn_rx_ring[i].hn_lro.lro_ackcnt_lim = ackcnt;
HN_UNLOCK(sc);
return 0;
@@ -2597,7 +2604,7 @@ hn_trust_hcsum_sysctl(SYSCTL_HANDLER_ARG
return error;
HN_LOCK(sc);
- for (i = 0; i < sc->hn_rx_ring_inuse; ++i) {
+ for (i = 0; i < sc->hn_rx_ring_cnt; ++i) {
struct hn_rx_ring *rxr = &sc->hn_rx_ring[i];
if (on)
@@ -2665,7 +2672,7 @@ hn_rx_stat_u64_sysctl(SYSCTL_HANDLER_ARG
uint64_t stat;
stat = 0;
- for (i = 0; i < sc->hn_rx_ring_inuse; ++i) {
+ for (i = 0; i < sc->hn_rx_ring_cnt; ++i) {
rxr = &sc->hn_rx_ring[i];
stat += *((uint64_t *)((uint8_t *)rxr + ofs));
}
@@ -2675,7 +2682,7 @@ hn_rx_stat_u64_sysctl(SYSCTL_HANDLER_ARG
return error;
/* Zero out this stat. */
- for (i = 0; i < sc->hn_rx_ring_inuse; ++i) {
+ for (i = 0; i < sc->hn_rx_ring_cnt; ++i) {
rxr = &sc->hn_rx_ring[i];
*((uint64_t *)((uint8_t *)rxr + ofs)) = 0;
}
@@ -2719,7 +2726,7 @@ hn_tx_stat_ulong_sysctl(SYSCTL_HANDLER_A
u_long stat;
stat = 0;
- for (i = 0; i < sc->hn_tx_ring_inuse; ++i) {
+ for (i = 0; i < sc->hn_tx_ring_cnt; ++i) {
txr = &sc->hn_tx_ring[i];
stat += *((u_long *)((uint8_t *)txr + ofs));
}
@@ -2729,7 +2736,7 @@ hn_tx_stat_ulong_sysctl(SYSCTL_HANDLER_A
return error;
/* Zero out this stat. */
- for (i = 0; i < sc->hn_tx_ring_inuse; ++i) {
+ for (i = 0; i < sc->hn_tx_ring_cnt; ++i) {
txr = &sc->hn_tx_ring[i];
*((u_long *)((uint8_t *)txr + ofs)) = 0;
}
@@ -2751,7 +2758,7 @@ hn_tx_conf_int_sysctl(SYSCTL_HANDLER_ARG
return error;
HN_LOCK(sc);
- for (i = 0; i < sc->hn_tx_ring_inuse; ++i) {
+ for (i = 0; i < sc->hn_tx_ring_cnt; ++i) {
txr = &sc->hn_tx_ring[i];
*((int *)((uint8_t *)txr + ofs)) = conf;
}
@@ -3622,7 +3629,7 @@ hn_set_chim_size(struct hn_softc *sc, in
{
int i;
- for (i = 0; i < sc->hn_tx_ring_inuse; ++i)
+ for (i = 0; i < sc->hn_tx_ring_cnt; ++i)
sc->hn_tx_ring[i].hn_chim_size = chim_size;
}
@@ -3672,12 +3679,10 @@ hn_fixup_tx_data(struct hn_softc *sc)
csum_assist |= CSUM_IP_TCP;
if (sc->hn_caps & HN_CAP_UDP4CS)
csum_assist |= CSUM_IP_UDP;
-#ifdef notyet
if (sc->hn_caps & HN_CAP_TCP6CS)
csum_assist |= CSUM_IP6_TCP;
if (sc->hn_caps & HN_CAP_UDP6CS)
csum_assist |= CSUM_IP6_UDP;
-#endif
for (i = 0; i < sc->hn_tx_ring_cnt; ++i)
sc->hn_tx_ring[i].hn_csum_assist = csum_assist;
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