D3415.1789840151.diff
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	Index: sys/net/if.h
	===================================================================
	--- sys/net/if.h
	+++ sys/net/if.h
	@@ -597,6 +597,7 @@
	} ift_feature;

	typedef struct ifnet * if_t;
	+typedef struct ifring * ifring_t;

	typedef void (if_input_t)(if_t, struct mbuf );
	typedef int (if_transmit_t)(if_t, struct mbuf );
	Index: sys/net/if_var.h
	===================================================================
	--- sys/net/if_var.h
	+++ sys/net/if_var.h
	@@ -79,6 +79,29 @@
	struct ifops ift_ops;
	};

	+struct ifrstat {
	+ uint64_t ifrs_ifinput;
	+ uint64_t ifrs_netisr;
	+ uint64_t ifrs_ether;
	+ uint64_t ifrs_ip;
	+ uint64_t ifrs_ip6;
	+ uint64_t ifrs_udp;
	+ uint64_t ifrs_tcp;
	+} __aligned(CACHE_LINE_SIZE);
	+
	+#define IFRSTAT_ADD(m, name, val) \
	+do { \
	+ if ((m)->m_pkthdr.ifring != NULL) \
	+ (m)->m_pkthdr.ifring->ifr_stats[curcpu].name += (val); \
	+} while (0)
	+#define IFRSTAT_SUB(m, name, val) IFRSTAT_ADD((m), name, -(val))
	+#define IFRSTAT_INC(m, name) IFRSTAT_ADD((m), name, 1)
	+#define IFRSTAT_DEC(m, name) IFRSTAT_SUB((m), name, 1)
	+
	+struct ifring {
	+ struct ifrstat ifr_stats[MAXCPU]; /* Percpu counters */
	+};
	+
	/*
	* Many network stack modules want to store their software context associated
	* with an interface. We used to give a pointer for everyone, but that yield