openbsd_network: New additions for rtl8125.

Change-Id: Id2b2b58e8fe69b5b758ccd8161adcedd7ecaf717
Reviewed-on: https://review.haiku-os.org/c/haiku/+/6041
Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org>
Reviewed-by: waddlesplash <waddlesplash@gmail.com>

src/libs/compat/openbsd_network/compat/net/if_var-obsd.h

@@ -0,0 +1,134 @@
+/*	$OpenBSD: if.c,v 1.683 2022/11/23 16:57:37 kn Exp $	*/
+/*	$NetBSD: if.c,v 1.35 1996/05/07 05:26:04 thorpej Exp $	*/
+
+/*
+ * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the project nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/*
+ * Copyright (c) 1980, 1986, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)if.c	8.3 (Berkeley) 1/4/94
+ */
+
+
+struct if_rxring {
+	int     rxr_adjusted;
+	u_int	rxr_alive;
+	u_int	rxr_cwm;
+	u_int	rxr_lwm;
+	u_int	rxr_hwm;
+};
+
+#define if_rxr_put(_r, _c)	do { (_r)->rxr_alive -= (_c); } while (0)
+#define if_rxr_needrefill(_r)	((_r)->rxr_alive < (_r)->rxr_lwm)
+#define if_rxr_inuse(_r)	((_r)->rxr_alive)
+#define if_rxr_cwm(_r)		((_r)->rxr_cwm)
+
+static inline void
+if_rxr_init(struct if_rxring *rxr, u_int lwm, u_int hwm)
+{
+	extern int ticks;
+
+	memset(rxr, 0, sizeof(*rxr));
+
+	rxr->rxr_adjusted = ticks;
+	rxr->rxr_cwm = rxr->rxr_lwm = lwm;
+	rxr->rxr_hwm = hwm;
+}
+
+static inline void
+if_rxr_adjust_cwm(struct if_rxring *rxr)
+{
+	extern int ticks;
+
+	if (rxr->rxr_alive >= rxr->rxr_lwm)
+		return;
+	else if (rxr->rxr_cwm < rxr->rxr_hwm)
+		rxr->rxr_cwm++;
+
+	rxr->rxr_adjusted = ticks;
+}
+
+static inline void
+if_rxr_livelocked(struct if_rxring *rxr)
+{
+	extern int ticks;
+
+	if (ticks - rxr->rxr_adjusted >= 1) {
+		if (rxr->rxr_cwm > rxr->rxr_lwm)
+			rxr->rxr_cwm--;
+
+		rxr->rxr_adjusted = ticks;
+	}
+}
+
+static inline u_int
+if_rxr_get(struct if_rxring *rxr, u_int max)
+{
+	extern int ticks;
+	u_int diff;
+
+	if (ticks - rxr->rxr_adjusted >= 1) {
+		/* we're free to try for an adjustment */
+		if_rxr_adjust_cwm(rxr);
+	}
+
+	if (rxr->rxr_alive >= rxr->rxr_cwm)
+		return (0);
+
+	diff = min(rxr->rxr_cwm - rxr->rxr_alive, max);
+	rxr->rxr_alive += diff;
+
+	return (diff);
+}

src/libs/compat/openbsd_network/compat/net/if_var.h

@@ -41,4 +41,9 @@ ifq_dequeue(struct ifaltq *ifq)
 }
 
 
+#ifndef __cplusplus
+#include "if_var-obsd.h"
+#endif
+
+
 #endif	/* _OBSD_COMPAT_NET_IF_VAR_H_ */

src/libs/compat/openbsd_network/compat/net/ifq.h

@@ -14,4 +14,18 @@
 #define ifq_clr_oactive(IFQ) if_setdrvflagbits(ifp, 0, IFF_DRV_OACTIVE)
 
 
+static void
+ifq_serialize(struct ifaltq* ifq, struct task* t)
+{
+	task_add(systq, t);
+}
+
+
+static void
+ifq_barrier(struct ifaltq* ifq)
+{
+	taskqueue_drain_all(taskqueue_fast);
+}
+
+
 #endif	/* _OBSD_COMPAT_NET_IFQ_H_ */

src/libs/compat/openbsd_network/compat/sys/systm.h

@@ -44,6 +44,10 @@ explicit_bzero(void *buf, size_t len)
 #define KASSERT KASSERT_OPENBSD
 
 
+#define KERNEL_LOCK()	mtx_lock(&Giant)
+#define KERNEL_UNLOCK() mtx_unlock(&Giant)
+
+
 /* #pragma mark - interrupts */
 
 #define	IPL_NONE		0