7a3fc19192
FreeBSD-16:04.hyperv FreeBSD-16:05.hv_netvsc FreeBSD-SA-16:14.openssh FreeBSD-SA-16:15.sysarch
28 lines
884 B
Diff
28 lines
884 B
Diff
--- sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c.orig
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+++ sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c
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@@ -128,6 +128,15 @@
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#define HV_NV_SC_PTR_OFFSET_IN_BUF 0
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#define HV_NV_PACKET_OFFSET_IN_BUF 16
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+/*
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+ * A unified flag for all outbound check sum flags is useful,
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+ * and it helps avoiding unnecessary check sum calculation in
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+ * network forwarding scenario.
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+ */
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+#define HV_CSUM_FOR_OUTBOUND \
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+ (CSUM_IP|CSUM_IP_UDP|CSUM_IP_TCP|CSUM_IP_SCTP|CSUM_IP_TSO| \
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+ CSUM_IP_ISCSI|CSUM_IP6_UDP|CSUM_IP6_TCP|CSUM_IP6_SCTP| \
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+ CSUM_IP6_TSO|CSUM_IP6_ISCSI)
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/*
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* Data types
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@@ -570,7 +579,8 @@
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packet->vlan_tci & 0xfff;
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}
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- if (0 == m_head->m_pkthdr.csum_flags) {
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+ /* Only check the flags for outbound and ignore the ones for inbound */
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+ if (0 == (m_head->m_pkthdr.csum_flags & HV_CSUM_FOR_OUTBOUND)) {
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goto pre_send;
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}
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