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-rw-r--r--src/compat.h71
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diff --git a/src/compat.h b/src/compat.h
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+/* SPDX-License-Identifier: MIT
+ *
+ * Copyright (C) 2021 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ *
+ * compat.h contains functions that are backported from FreeBSD's main branch. It is different from
+ * support.h, which is for things that aren't _yet_ upstream or from OpenBSD.
+ */
+
+#include <sys/param.h>
+#if __FreeBSD_version < 1300000
+#define VIMAGE
+
+#include <sys/types.h>
+#include <sys/limits.h>
+#include <sys/endian.h>
+#include <sys/socket.h>
+#include <sys/libkern.h>
+#include <sys/malloc.h>
+#include <sys/proc.h>
+#include <sys/lock.h>
+#include <sys/smp.h>
+#include <sys/gtaskqueue.h>
+#include <sys/socketvar.h>
+#include <sys/protosw.h>
+#include <net/vnet.h>
+#include <net/if.h>
+#include <net/if_var.h>
+#include <vm/uma.h>
+
+#define taskqgroup_attach(a, b, c, d, e, f) taskqgroup_attach((a), (b), (c), -1, (f))
+#define taskqgroup_attach_cpu(a, b, c, d, e, f, g) taskqgroup_attach_cpu((a), (b), (c), (d), -1, (g))
+
+#undef NET_EPOCH_ENTER
+#define NET_EPOCH_ENTER(et) NET_EPOCH_ENTER_ET(et)
+#undef NET_EPOCH_EXIT
+#define NET_EPOCH_EXIT(et) NET_EPOCH_EXIT_ET(et)
+#define NET_EPOCH_CALL(f, c) epoch_call(net_epoch_preempt, (c), (f))
+#define NET_EPOCH_ASSERT() MPASS(in_epoch(net_epoch_preempt))
+
+#undef atomic_load_ptr
+#define atomic_load_ptr(p) (*(volatile __typeof(*p) *)(p))
+
+struct taskqgroup_cpu {
+ LIST_HEAD(, grouptask) tgc_tasks;
+ struct gtaskqueue *tgc_taskq;
+ int tgc_cnt;
+ int tgc_cpu;
+};
+
+struct taskqgroup {
+ struct taskqgroup_cpu tqg_queue[MAXCPU];
+ struct mtx tqg_lock;
+ const char * tqg_name;
+ int tqg_adjusting;
+ int tqg_stride;
+ int tqg_cnt;
+};
+
+static inline void taskqgroup_drain_all(struct taskqgroup *tqg)
+{
+ struct gtaskqueue *q;
+
+ for (int i = 0; i < mp_ncpus; i++) {
+ q = tqg->tqg_queue[i].tgc_taskq;
+ if (q == NULL)
+ continue;
+ gtaskqueue_drain_all(q);
+ }
+}
+
+#endif